0 files changed, 0 insertions, 0 deletions
diff --git a/tools/testing/selftests/.gitignore b/tools/testing/selftests/.gitignore
new file mode 100644
index 000000000000..674aaa02e396
--- /dev/null
+++ b/tools/testing/selftests/.gitignore
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+gpiogpio-event-mon
+gpiogpio-hammer
+gpioinclude/
+gpiolsgpio
+kselftest_install/
+
+# Python bytecode and cache
+__pycache__/
+*.py[cod]
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index b8f12e0897e6..56e44a98d6a5 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -1,102 +1,325 @@
-TARGETS = breakpoints
+# SPDX-License-Identifier: GPL-2.0
+TARGETS += acct
+TARGETS += alsa
+TARGETS += amd-pstate
+TARGETS += arm64
+TARGETS += bpf
+TARGETS += breakpoints
+TARGETS += cachestat
+TARGETS += capabilities
+TARGETS += cgroup
+TARGETS += clone3
+TARGETS += connector
+TARGETS += core
+TARGETS += cpufreq
 TARGETS += cpu-hotplug
+TARGETS += damon
+TARGETS += devices/error_logs
+TARGETS += devices/probe
+TARGETS += dmabuf-heaps
+TARGETS += drivers/dma-buf
+TARGETS += drivers/ntsync
+TARGETS += drivers/s390x/uvdevice
+TARGETS += drivers/net
+TARGETS += drivers/net/bonding
+TARGETS += drivers/net/team
+TARGETS += drivers/net/virtio_net
+TARGETS += drivers/platform/x86/intel/ifs
+TARGETS += dt
 TARGETS += efivarfs
 TARGETS += exec
+TARGETS += fchmodat2
+TARGETS += filesystems
+TARGETS += filesystems/binderfs
+TARGETS += filesystems/epoll
+TARGETS += filesystems/fat
+TARGETS += filesystems/overlayfs
+TARGETS += filesystems/statmount
+TARGETS += filesystems/mount-notify
+TARGETS += filesystems/fuse
 TARGETS += firmware
+TARGETS += fpu
 TARGETS += ftrace
 TARGETS += futex
+TARGETS += gpio
+TARGETS += hid
+TARGETS += intel_pstate
+TARGETS += iommu
+TARGETS += ipc
+TARGETS += ir
 TARGETS += kcmp
+TARGETS += kexec
+TARGETS += kselftest_harness
+TARGETS += kvm
+TARGETS += landlock
+TARGETS += lib
+TARGETS += livepatch
+TARGETS += liveupdate
+TARGETS += lkdtm
+TARGETS += lsm
+TARGETS += membarrier
 TARGETS += memfd
 TARGETS += memory-hotplug
+TARGETS += mincore
 TARGETS += mount
+TARGETS += mount_setattr
+TARGETS += move_mount_set_group
 TARGETS += mqueue
+TARGETS += mseal_system_mappings
+TARGETS += nci
 TARGETS += net
+TARGETS += net/af_unix
+TARGETS += net/can
+TARGETS += net/forwarding
+TARGETS += net/hsr
+TARGETS += net/mptcp
+TARGETS += net/netfilter
+TARGETS += net/openvswitch
+TARGETS += net/ovpn
+TARGETS += net/packetdrill
+TARGETS += net/rds
+TARGETS += net/tcp_ao
+TARGETS += nolibc
+TARGETS += nsfs
+TARGETS += pci_endpoint
+TARGETS += pcie_bwctrl
+TARGETS += perf_events
+TARGETS += pidfd
+TARGETS += pid_namespace
+TARGETS += power_supply
 TARGETS += powerpc
+TARGETS += prctl
+TARGETS += proc
+TARGETS += pstore
 TARGETS += ptrace
+TARGETS += openat2
+TARGETS += resctrl
+TARGETS += riscv
+TARGETS += rlimits
+TARGETS += rseq
+TARGETS += rtc
+TARGETS += rust
+TARGETS += sched_ext
 TARGETS += seccomp
+TARGETS += sgx
+TARGETS += signal
 TARGETS += size
+TARGETS += sparc64
+TARGETS += splice
+TARGETS += static_keys
+TARGETS += sync
+TARGETS += syscall_user_dispatch
 TARGETS += sysctl
+TARGETS += tc-testing
+TARGETS += tdx
+TARGETS += thermal/intel/power_floor
+TARGETS += thermal/intel/workload_hint
+TARGETS += timens
 ifneq (1, $(quicktest))
 TARGETS += timers
 endif
-TARGETS += user
-TARGETS += jumplabel
-TARGETS += vm
+TARGETS += tmpfs
+TARGETS += tpm2
+TARGETS += tty
+TARGETS += ublk
+TARGETS += uevent
+TARGETS += user_events
+TARGETS += vDSO
+TARGETS += mm
+TARGETS += vfio
 TARGETS += x86
+TARGETS += x86/bugs
+TARGETS += zram
 #Please keep the TARGETS list alphabetically sorted
 # Run "make quicktest=1 run_tests" or
-# "make quicktest=1 kselftest from top level Makefile
+# "make quicktest=1 kselftest" from top level Makefile
 
 TARGETS_HOTPLUG = cpu-hotplug
 TARGETS_HOTPLUG += memory-hotplug
 
-# Clear LDFLAGS and MAKEFLAGS if called from main
-# Makefile to avoid test build failures when test
-# Makefile doesn't have explicit build rules.
-ifeq (1,$(MAKELEVEL))
+# Networking tests want the net/lib target, include it automatically
+ifneq ($(filter net drivers/net drivers/net/hw,$(TARGETS)),)
+ifeq ($(filter net/lib,$(TARGETS)),)
+	INSTALL_DEP_TARGETS := net/lib
+endif
+endif
+
+# User can optionally provide a TARGETS skiplist. By default we skip
+# targets using BPF since it has cutting edge build time dependencies
+# which require more effort to install.
+SKIP_TARGETS ?= bpf sched_ext
+ifneq ($(SKIP_TARGETS),)
+	TMP := $(filter-out $(SKIP_TARGETS), $(TARGETS))
+	override TARGETS := $(TMP)
+endif
+
+# User can set FORCE_TARGETS to 1 to require all targets to be successfully
+# built; make will fail if any of the targets cannot be built. If
+# FORCE_TARGETS is not set (the default), make will succeed if at least one
+# of the targets gets built.
+FORCE_TARGETS ?=
+
+# Clear LDFLAGS and MAKEFLAGS when implicit rules are missing.  This provides
+# implicit rules to sub-test Makefiles which avoids build failures in test
+# Makefile that don't have explicit build rules.
+ifeq (,$(LINK.c))
 override LDFLAGS =
 override MAKEFLAGS =
 endif
 
+# Append kselftest to KBUILD_OUTPUT and O to avoid cluttering
+# KBUILD_OUTPUT with selftest objects and headers installed
+# by selftests Makefile or lib.mk.
+ifdef building_out_of_srctree
+override LDFLAGS =
+endif
+
+top_srcdir ?= ../../..
+
+ifeq ("$(origin O)", "command line")
+  KBUILD_OUTPUT := $(O)
+endif
+
+ifneq ($(KBUILD_OUTPUT),)
+  # Make's built-in functions such as $(abspath ...), $(realpath ...) cannot
+  # expand a shell special character '~'. We use a somewhat tedious way here.
+  abs_objtree := $(shell cd $(top_srcdir) && mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) && pwd)
+  $(if $(abs_objtree),, \
+    $(error failed to create output directory "$(KBUILD_OUTPUT)"))
+  # $(realpath ...) resolves symlinks
+  abs_objtree := $(realpath $(abs_objtree))
+  BUILD := $(abs_objtree)/kselftest
+  KHDR_INCLUDES := -isystem ${abs_objtree}/usr/include
+else
+  BUILD := $(CURDIR)
+  abs_srctree := $(shell cd $(top_srcdir) && pwd)
+  KHDR_INCLUDES := -isystem ${abs_srctree}/usr/include
+  DEFAULT_INSTALL_HDR_PATH := 1
+endif
+
+# Prepare for headers install
+include $(top_srcdir)/scripts/subarch.include
+ARCH           ?= $(SUBARCH)
+export BUILD
+export KHDR_INCLUDES
+
+# set default goal to all, so make without a target runs all, even when
+# all isn't the first target in the file.
+.DEFAULT_GOAL := all
+
 all:
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET; \
-	done;
+	@ret=1;							\
+	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do	\
+		BUILD_TARGET=$$BUILD/$$TARGET;			\
+		mkdir $$BUILD_TARGET  -p;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET	\
+				O=$(abs_objtree)		\
+				$(if $(FORCE_TARGETS),|| exit);	\
+		ret=$$((ret * $$?));				\
+	done; exit $$ret;
 
 run_tests: all
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET run_tests; \
+	@for TARGET in $(TARGETS); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests \
+				SRC_PATH=$(shell readlink -e $$(pwd)) \
+				OBJ_PATH=$(BUILD)                   \
+				O=$(abs_objtree);		    \
 	done;
 
 hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET; \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET;\
 	done;
 
 run_hotplug: hotplug
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET run_full_test; \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_full_test;\
 	done;
 
 clean_hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
-		make -C $$TARGET clean; \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
 	done;
 
-INSTALL_PATH ?= install
-INSTALL_PATH := $(abspath $(INSTALL_PATH))
+run_pstore_crash:
+	$(MAKE) -C pstore run_crash
+
+# Use $BUILD as the default install root. $BUILD points to the
+# right output location for the following cases:
+# 1. output_dir=kernel_src
+# 2. a separate output directory is specified using O= KBUILD_OUTPUT
+# 3. a separate output directory is specified using KBUILD_OUTPUT
+# Avoid conflict with INSTALL_PATH set by the main Makefile
+#
+KSFT_INSTALL_PATH ?= $(BUILD)/kselftest_install
+KSFT_INSTALL_PATH := $(abspath $(KSFT_INSTALL_PATH))
+# Avoid changing the rest of the logic here and lib.mk.
+INSTALL_PATH := $(KSFT_INSTALL_PATH)
 ALL_SCRIPT := $(INSTALL_PATH)/run_kselftest.sh
+TEST_LIST := $(INSTALL_PATH)/kselftest-list.txt
 
-install:
+install: all
 ifdef INSTALL_PATH
 	@# Ask all targets to install their files
-	mkdir -p $(INSTALL_PATH)
-	for TARGET in $(TARGETS); do \
-		mkdir -p $(INSTALL_PATH)/$$TARGET ; \
-		make -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
-	done;
+	mkdir -p $(INSTALL_PATH)/kselftest
+	install -m 744 kselftest/module.sh $(INSTALL_PATH)/kselftest/
+	install -m 744 kselftest/runner.sh $(INSTALL_PATH)/kselftest/
+	install -m 744 kselftest/prefix.pl $(INSTALL_PATH)/kselftest/
+	install -m 744 kselftest/ktap_helpers.sh $(INSTALL_PATH)/kselftest/
+	install -m 744 kselftest/ksft.py $(INSTALL_PATH)/kselftest/
+	install -m 744 run_kselftest.sh $(INSTALL_PATH)/
+	rm -f $(TEST_LIST)
+	@ret=1;	\
+	for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET install \
+				INSTALL_PATH=$(INSTALL_PATH)/$$TARGET \
+				SRC_PATH=$(shell readlink -e $$(pwd)) \
+				OBJ_PATH=$(INSTALL_PATH) \
+				O=$(abs_objtree)		\
+				$(if $(FORCE_TARGETS),|| exit);	\
+		ret=$$((ret * $$?));		\
+	done; exit $$ret;
 
-	@# Ask all targets to emit their test scripts
-	echo "#!/bin/bash" > $(ALL_SCRIPT)
-	echo "cd \$$(dirname \$$0)" >> $(ALL_SCRIPT)
-	echo "ROOT=\$$PWD" >> $(ALL_SCRIPT)
 
+	@# Ask all targets to emit their test scripts
+	@# While building kselftest-list.text skip also non-existent TARGET dirs:
+	@# they could be the result of a build failure and should NOT be
+	@# included in the generated runlist.
 	for TARGET in $(TARGETS); do \
-		echo "echo ; echo Running tests in $$TARGET" >> $(ALL_SCRIPT); \
-		echo "echo ========================================" >> $(ALL_SCRIPT); \
-		echo "cd $$TARGET" >> $(ALL_SCRIPT); \
-		make -s --no-print-directory -C $$TARGET emit_tests >> $(ALL_SCRIPT); \
-		echo "cd \$$ROOT" >> $(ALL_SCRIPT); \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		[ ! -d $(INSTALL_PATH)/$$TARGET ] && printf "Skipping non-existent dir: $$TARGET\n" && continue; \
+		printf "Emit Tests for $$TARGET\n"; \
+		$(MAKE) -s --no-print-directory OUTPUT=$$BUILD_TARGET COLLECTION=$$TARGET \
+			-C $$TARGET emit_tests >> $(TEST_LIST); \
 	done;
-
-	chmod u+x $(ALL_SCRIPT)
+	@VERSION=$$(git describe HEAD 2>/dev/null); \
+	if [ -n "$$VERSION" ]; then \
+		echo "$$VERSION" > $(INSTALL_PATH)/VERSION; \
+		printf "Version saved to $(INSTALL_PATH)/VERSION\n"; \
+	else \
+		printf "Unable to get version from git describe\n"; \
+	fi
+	@echo "**Kselftest Installation is complete: $(INSTALL_PATH)**"
 else
 	$(error Error: set INSTALL_PATH to use install)
 endif
 
+FORMAT ?= .gz
+TAR_PATH = $(abspath ${INSTALL_PATH}/kselftest-packages/kselftest.tar${FORMAT})
+gen_tar: install
+	@mkdir -p ${INSTALL_PATH}/kselftest-packages/
+	@tar caf ${TAR_PATH} --exclude=kselftest-packages -C ${INSTALL_PATH} .
+	@echo "Created ${TAR_PATH}"
+
 clean:
-	for TARGET in $(TARGETS); do \
-		make -C $$TARGET clean; \
+	@for TARGET in $(TARGETS) $(INSTALL_DEP_TARGETS); do \
+		BUILD_TARGET=$$BUILD/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
 	done;
 
-.PHONY: install
+.PHONY: all run_tests hotplug run_hotplug clean_hotplug run_pstore_crash install clean gen_tar
diff --git a/tools/testing/selftests/acct/.gitignore b/tools/testing/selftests/acct/.gitignore
new file mode 100644
index 000000000000..7e78aac19038
--- /dev/null
+++ b/tools/testing/selftests/acct/.gitignore
@@ -0,0 +1,3 @@
+acct_syscall
+config
+process_log
+\ No newline at end of file
diff --git a/tools/testing/selftests/acct/Makefile b/tools/testing/selftests/acct/Makefile
new file mode 100644
index 000000000000..7e025099cf65
--- /dev/null
+++ b/tools/testing/selftests/acct/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := acct_syscall
+CFLAGS += -Wall
+
+include ../lib.mk
+\ No newline at end of file
diff --git a/tools/testing/selftests/acct/acct_syscall.c b/tools/testing/selftests/acct/acct_syscall.c
new file mode 100644
index 000000000000..421adbdc299d
--- /dev/null
+++ b/tools/testing/selftests/acct/acct_syscall.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* kselftest for acct() system call
+ *  The acct() system call enables or disables process accounting.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+
+int main(void)
+{
+	char filename[] = "process_log";
+	FILE *fp;
+	pid_t child_pid;
+	int sz;
+
+	// Setting up kselftest framework
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	// Check if test is run a root
+	if (geteuid()) {
+		ksft_exit_skip("This test needs root to run!\n");
+		return 1;
+	}
+
+	// Create file to log closed processes
+	fp = fopen(filename, "w");
+
+	if (!fp) {
+		ksft_test_result_error("%s.\n", strerror(errno));
+		ksft_finished();
+		return 1;
+	}
+
+	acct(filename);
+
+	// Handle error conditions
+	if (errno) {
+		ksft_test_result_error("%s.\n", strerror(errno));
+		fclose(fp);
+		ksft_finished();
+		return 1;
+	}
+
+	// Create child process and wait for it to terminate.
+
+	child_pid = fork();
+
+	if (child_pid < 0) {
+		ksft_test_result_error("Creating a child process to log failed\n");
+		acct(NULL);
+		return 1;
+	} else if (child_pid > 0) {
+		wait(NULL);
+		fseek(fp, 0L, SEEK_END);
+		sz = ftell(fp);
+
+		acct(NULL);
+
+		if (sz <= 0) {
+			ksft_test_result_fail("Terminated child process not logged\n");
+			ksft_exit_fail();
+			return 1;
+		}
+
+		ksft_test_result_pass("Successfully logged terminated process.\n");
+		fclose(fp);
+		ksft_exit_pass();
+		return 0;
+	}
+
+	return 1;
+}
diff --git a/tools/testing/selftests/alsa/.gitignore b/tools/testing/selftests/alsa/.gitignore
new file mode 100644
index 000000000000..3dd8e1176b89
--- /dev/null
+++ b/tools/testing/selftests/alsa/.gitignore
@@ -0,0 +1,5 @@
+global-timer
+mixer-test
+pcm-test
+test-pcmtest-driver
+utimer-test
diff --git a/tools/testing/selftests/alsa/Makefile b/tools/testing/selftests/alsa/Makefile
new file mode 100644
index 000000000000..8dab90ad22bb
--- /dev/null
+++ b/tools/testing/selftests/alsa/Makefile
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+ifneq ($(shell pkg-config --exists alsa && echo 0 || echo 1),0)
+$(error Package alsa not found, please install alsa development package or \
+	add directory containing `alsa.pc` in PKG_CONFIG_PATH)
+endif
+
+CFLAGS += $(shell pkg-config --cflags alsa) $(KHDR_INCLUDES)
+LDLIBS += $(shell pkg-config --libs alsa)
+ifeq ($(LDLIBS),)
+LDLIBS += -lasound
+endif
+CFLAGS += -L$(OUTPUT) -Wl,-rpath=./
+
+LDLIBS+=-lpthread
+
+OVERRIDE_TARGETS = 1
+
+TEST_GEN_PROGS := mixer-test pcm-test test-pcmtest-driver utimer-test
+
+TEST_GEN_PROGS_EXTENDED := libatest.so global-timer
+
+TEST_FILES := conf.d pcm-test.conf
+
+include ../lib.mk
+
+$(OUTPUT)/libatest.so: conf.c alsa-local.h
+	$(CC) $(CFLAGS) -shared -fPIC $< $(LDLIBS) -o $@
+
+$(OUTPUT)/%: %.c $(OUTPUT)/libatest.so alsa-local.h
+	$(CC) $(CFLAGS) $< $(LDLIBS) -latest -o $@
diff --git a/tools/testing/selftests/alsa/alsa-local.h b/tools/testing/selftests/alsa/alsa-local.h
new file mode 100644
index 000000000000..29143ef52101
--- /dev/null
+++ b/tools/testing/selftests/alsa/alsa-local.h
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// kselftest configuration helpers for the hw specific configuration
+//
+// Original author: Jaroslav Kysela <perex@perex.cz>
+// Copyright (c) 2022 Red Hat Inc.
+
+#ifndef __ALSA_LOCAL_H
+#define __ALSA_LOCAL_H
+
+#include <alsa/asoundlib.h>
+
+snd_config_t *get_alsalib_config(void);
+
+snd_config_t *conf_load_from_file(const char *filename);
+void conf_load(void);
+void conf_free(void);
+snd_config_t *conf_by_card(int card);
+snd_config_t *conf_get_subtree(snd_config_t *root, const char *key1, const char *key2);
+int conf_get_count(snd_config_t *root, const char *key1, const char *key2);
+const char *conf_get_string(snd_config_t *root, const char *key1, const char *key2, const char *def);
+long conf_get_long(snd_config_t *root, const char *key1, const char *key2, long def);
+int conf_get_bool(snd_config_t *root, const char *key1, const char *key2, int def);
+void conf_get_string_array(snd_config_t *root, const char *key1, const char *key2,
+			   const char **array, int array_size, const char *def);
+
+struct card_cfg_data {
+	int card;
+	snd_config_t *config;
+	const char *filename;
+	const char *config_id;
+	struct card_cfg_data *next;
+};
+
+extern struct card_cfg_data *conf_cards;
+
+#endif /* __ALSA_LOCAL_H */
diff --git a/tools/testing/selftests/alsa/conf.c b/tools/testing/selftests/alsa/conf.c
new file mode 100644
index 000000000000..317212078e36
--- /dev/null
+++ b/tools/testing/selftests/alsa/conf.c
@@ -0,0 +1,475 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// kselftest configuration helpers for the hw specific configuration
+//
+// Original author: Jaroslav Kysela <perex@perex.cz>
+// Copyright (c) 2022 Red Hat Inc.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <assert.h>
+#include <dirent.h>
+#include <regex.h>
+#include <sys/stat.h>
+
+#include "kselftest.h"
+#include "alsa-local.h"
+
+#define SYSFS_ROOT "/sys"
+
+struct card_cfg_data *conf_cards;
+
+static const char *alsa_config =
+"ctl.hw {\n"
+"	@args [ CARD ]\n"
+"	@args.CARD.type string\n"
+"	type hw\n"
+"	card $CARD\n"
+"}\n"
+"pcm.hw {\n"
+"	@args [ CARD DEV SUBDEV ]\n"
+"	@args.CARD.type string\n"
+"	@args.DEV.type integer\n"
+"	@args.SUBDEV.type integer\n"
+"	type hw\n"
+"	card $CARD\n"
+"	device $DEV\n"
+"	subdevice $SUBDEV\n"
+"}\n"
+;
+
+#ifdef SND_LIB_VER
+#if SND_LIB_VERSION >= SND_LIB_VER(1, 2, 6)
+#define LIB_HAS_LOAD_STRING
+#endif
+#endif
+
+#ifndef LIB_HAS_LOAD_STRING
+static int snd_config_load_string(snd_config_t **config, const char *s,
+				  size_t size)
+{
+	snd_input_t *input;
+	snd_config_t *dst;
+	int err;
+
+	assert(config && s);
+	if (size == 0)
+		size = strlen(s);
+	err = snd_input_buffer_open(&input, s, size);
+	if (err < 0)
+		return err;
+	err = snd_config_top(&dst);
+	if (err < 0) {
+		snd_input_close(input);
+		return err;
+	}
+	err = snd_config_load(dst, input);
+	snd_input_close(input);
+	if (err < 0) {
+		snd_config_delete(dst);
+		return err;
+	}
+	*config = dst;
+	return 0;
+}
+#endif
+
+snd_config_t *get_alsalib_config(void)
+{
+	snd_config_t *config;
+	int err;
+
+	err = snd_config_load_string(&config, alsa_config, strlen(alsa_config));
+	if (err < 0) {
+		ksft_print_msg("Unable to parse custom alsa-lib configuration: %s\n",
+			       snd_strerror(err));
+		ksft_exit_fail();
+	}
+	return config;
+}
+
+static struct card_cfg_data *conf_data_by_card(int card, bool msg)
+{
+	struct card_cfg_data *conf;
+
+	for (conf = conf_cards; conf; conf = conf->next) {
+		if (conf->card == card) {
+			if (msg)
+				ksft_print_msg("using hw card config %s for card %d\n",
+					       conf->filename, card);
+			return conf;
+		}
+	}
+	return NULL;
+}
+
+static void dump_config_tree(snd_config_t *top)
+{
+	snd_output_t *out;
+	int err;
+
+	err = snd_output_stdio_attach(&out, stdout, 0);
+	if (err < 0)
+		ksft_exit_fail_msg("stdout attach\n");
+	if (snd_config_save(top, out))
+		ksft_exit_fail_msg("config save\n");
+	snd_output_close(out);
+}
+
+snd_config_t *conf_load_from_file(const char *filename)
+{
+	snd_config_t *dst;
+	snd_input_t *input;
+	int err;
+
+	err = snd_input_stdio_open(&input, filename, "r");
+	if (err < 0)
+		ksft_exit_fail_msg("Unable to parse filename %s\n", filename);
+	err = snd_config_top(&dst);
+	if (err < 0)
+		ksft_exit_fail_msg("Out of memory\n");
+	err = snd_config_load(dst, input);
+	snd_input_close(input);
+	if (err < 0)
+		ksft_exit_fail_msg("Unable to parse filename %s\n", filename);
+	return dst;
+}
+
+static char *sysfs_get(const char *sysfs_root, const char *id)
+{
+	char path[PATH_MAX], link[PATH_MAX + 1];
+	struct stat sb;
+	ssize_t len;
+	char *e;
+	int fd;
+
+	if (id[0] == '/')
+		id++;
+	snprintf(path, sizeof(path), "%s/%s", sysfs_root, id);
+	if (lstat(path, &sb) != 0)
+		return NULL;
+	if (S_ISLNK(sb.st_mode)) {
+		len = readlink(path, link, sizeof(link) - 1);
+		if (len <= 0) {
+			ksft_exit_fail_msg("sysfs: cannot read link '%s': %s\n",
+					   path, strerror(errno));
+			return NULL;
+		}
+		link[len] = '\0';
+		e = strrchr(link, '/');
+		if (e)
+			return strdup(e + 1);
+		return NULL;
+	}
+	if (S_ISDIR(sb.st_mode))
+		return NULL;
+	if ((sb.st_mode & S_IRUSR) == 0)
+		return NULL;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0) {
+		if (errno == ENOENT)
+			return NULL;
+		ksft_exit_fail_msg("sysfs: open failed for '%s': %s\n",
+				   path, strerror(errno));
+	}
+	len = read(fd, path, sizeof(path)-1);
+	close(fd);
+	if (len < 0)
+		ksft_exit_fail_msg("sysfs: unable to read value '%s': %s\n",
+				   path, strerror(errno));
+	while (len > 0 && path[len-1] == '\n')
+		len--;
+	path[len] = '\0';
+	e = strdup(path);
+	if (e == NULL)
+		ksft_exit_fail_msg("Out of memory\n");
+	return e;
+}
+
+static bool sysfs_match(const char *sysfs_root, snd_config_t *config)
+{
+	snd_config_t *node, *path_config, *regex_config;
+	snd_config_iterator_t i, next;
+	const char *path_string, *regex_string, *v;
+	regex_t re;
+	regmatch_t match[1];
+	int iter = 0, ret;
+
+	snd_config_for_each(i, next, config) {
+		node = snd_config_iterator_entry(i);
+		if (snd_config_search(node, "path", &path_config))
+			ksft_exit_fail_msg("Missing path field in the sysfs block\n");
+		if (snd_config_search(node, "regex", &regex_config))
+			ksft_exit_fail_msg("Missing regex field in the sysfs block\n");
+		if (snd_config_get_string(path_config, &path_string))
+			ksft_exit_fail_msg("Path field in the sysfs block is not a string\n");
+		if (snd_config_get_string(regex_config, &regex_string))
+			ksft_exit_fail_msg("Regex field in the sysfs block is not a string\n");
+		iter++;
+		v = sysfs_get(sysfs_root, path_string);
+		if (!v)
+			return false;
+		if (regcomp(&re, regex_string, REG_EXTENDED))
+			ksft_exit_fail_msg("Wrong regex '%s'\n", regex_string);
+		ret = regexec(&re, v, 1, match, 0);
+		regfree(&re);
+		if (ret)
+			return false;
+	}
+	return iter > 0;
+}
+
+static void assign_card_config(int card, const char *sysfs_card_root)
+{
+	struct card_cfg_data *data;
+	snd_config_t *sysfs_card_config;
+
+	for (data = conf_cards; data; data = data->next) {
+		snd_config_search(data->config, "sysfs", &sysfs_card_config);
+		if (!sysfs_match(sysfs_card_root, sysfs_card_config))
+			continue;
+
+		data->card = card;
+		break;
+	}
+}
+
+static void assign_card_configs(void)
+{
+	char fn[128];
+	int card;
+
+	for (card = 0; card < 32; card++) {
+		snprintf(fn, sizeof(fn), "%s/class/sound/card%d", SYSFS_ROOT, card);
+		if (access(fn, R_OK) == 0)
+			assign_card_config(card, fn);
+	}
+}
+
+static int filename_filter(const struct dirent *dirent)
+{
+	size_t flen;
+
+	if (dirent == NULL)
+		return 0;
+	if (dirent->d_type == DT_DIR)
+		return 0;
+	flen = strlen(dirent->d_name);
+	if (flen <= 5)
+		return 0;
+	if (strncmp(&dirent->d_name[flen-5], ".conf", 5) == 0)
+		return 1;
+	return 0;
+}
+
+static bool match_config(const char *filename)
+{
+	struct card_cfg_data *data;
+	snd_config_t *config, *sysfs_config, *card_config, *sysfs_card_config, *node;
+	snd_config_iterator_t i, next;
+
+	config = conf_load_from_file(filename);
+	if (snd_config_search(config, "sysfs", &sysfs_config) ||
+	    snd_config_get_type(sysfs_config) != SND_CONFIG_TYPE_COMPOUND)
+		ksft_exit_fail_msg("Missing global sysfs block in filename %s\n", filename);
+	if (snd_config_search(config, "card", &card_config) ||
+	    snd_config_get_type(card_config) != SND_CONFIG_TYPE_COMPOUND)
+		ksft_exit_fail_msg("Missing global card block in filename %s\n", filename);
+	if (!sysfs_match(SYSFS_ROOT, sysfs_config))
+		return false;
+	snd_config_for_each(i, next, card_config) {
+		node = snd_config_iterator_entry(i);
+		if (snd_config_search(node, "sysfs", &sysfs_card_config) ||
+		    snd_config_get_type(sysfs_card_config) != SND_CONFIG_TYPE_COMPOUND)
+			ksft_exit_fail_msg("Missing card sysfs block in filename %s\n", filename);
+
+		data = malloc(sizeof(*data));
+		if (!data)
+			ksft_exit_fail_msg("Out of memory\n");
+		data->filename = filename;
+		data->config = node;
+		data->card = -1;
+		if (snd_config_get_id(node, &data->config_id))
+			ksft_exit_fail_msg("snd_config_get_id failed for card\n");
+		data->next = conf_cards;
+		conf_cards = data;
+	}
+	return true;
+}
+
+void conf_load(void)
+{
+	const char *fn = "conf.d";
+	struct dirent **namelist;
+	int n, j;
+
+	n = scandir(fn, &namelist, filename_filter, alphasort);
+	if (n < 0)
+		ksft_exit_fail_msg("scandir: %s\n", strerror(errno));
+	for (j = 0; j < n; j++) {
+		size_t sl = strlen(fn) + strlen(namelist[j]->d_name) + 2;
+		char *filename = malloc(sl);
+		if (filename == NULL)
+			ksft_exit_fail_msg("Out of memory\n");
+		sprintf(filename, "%s/%s", fn, namelist[j]->d_name);
+		if (match_config(filename))
+			filename = NULL;
+		free(filename);
+		free(namelist[j]);
+	}
+	free(namelist);
+
+	assign_card_configs();
+}
+
+void conf_free(void)
+{
+	struct card_cfg_data *conf;
+
+	while (conf_cards) {
+		conf = conf_cards;
+		conf_cards = conf->next;
+		snd_config_delete(conf->config);
+	}
+}
+
+snd_config_t *conf_by_card(int card)
+{
+	struct card_cfg_data *conf;
+
+	conf = conf_data_by_card(card, true);
+	if (conf)
+		return conf->config;
+	return NULL;
+}
+
+static int conf_get_by_keys(snd_config_t *root, const char *key1,
+			    const char *key2, snd_config_t **result)
+{
+	int ret;
+
+	if (key1) {
+		ret = snd_config_search(root, key1, &root);
+		if (ret != -ENOENT && ret < 0)
+			return ret;
+	}
+	if (key2)
+		ret = snd_config_search(root, key2, &root);
+	if (ret >= 0)
+		*result = root;
+	return ret;
+}
+
+snd_config_t *conf_get_subtree(snd_config_t *root, const char *key1, const char *key2)
+{
+	int ret;
+
+	if (!root)
+		return NULL;
+	ret = conf_get_by_keys(root, key1, key2, &root);
+	if (ret == -ENOENT)
+		return NULL;
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	return root;
+}
+
+int conf_get_count(snd_config_t *root, const char *key1, const char *key2)
+{
+	snd_config_t *cfg;
+	snd_config_iterator_t i, next;
+	int count, ret;
+
+	if (!root)
+		return -1;
+	ret = conf_get_by_keys(root, key1, key2, &cfg);
+	if (ret == -ENOENT)
+		return -1;
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	if (snd_config_get_type(cfg) != SND_CONFIG_TYPE_COMPOUND)
+		ksft_exit_fail_msg("key '%s'.'%s' is not a compound\n", key1, key2);
+	count = 0;
+	snd_config_for_each(i, next, cfg)
+		count++;
+	return count;
+}
+
+const char *conf_get_string(snd_config_t *root, const char *key1, const char *key2, const char *def)
+{
+	snd_config_t *cfg;
+	const char *s;
+	int ret;
+
+	if (!root)
+		return def;
+	ret = conf_get_by_keys(root, key1, key2, &cfg);
+	if (ret == -ENOENT)
+		return def;
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	if (snd_config_get_string(cfg, &s))
+		ksft_exit_fail_msg("key '%s'.'%s' is not a string\n", key1, key2);
+	return s;
+}
+
+long conf_get_long(snd_config_t *root, const char *key1, const char *key2, long def)
+{
+	snd_config_t *cfg;
+	long l;
+	int ret;
+
+	if (!root)
+		return def;
+	ret = conf_get_by_keys(root, key1, key2, &cfg);
+	if (ret == -ENOENT)
+		return def;
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	if (snd_config_get_integer(cfg, &l))
+		ksft_exit_fail_msg("key '%s'.'%s' is not an integer\n", key1, key2);
+	return l;
+}
+
+int conf_get_bool(snd_config_t *root, const char *key1, const char *key2, int def)
+{
+	snd_config_t *cfg;
+	int ret;
+
+	if (!root)
+		return def;
+	ret = conf_get_by_keys(root, key1, key2, &cfg);
+	if (ret == -ENOENT)
+		return def;
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	ret = snd_config_get_bool(cfg);
+	if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' is not a bool\n", key1, key2);
+	return !!ret;
+}
+
+void conf_get_string_array(snd_config_t *root, const char *key1, const char *key2,
+			   const char **array, int array_size, const char *def)
+{
+	snd_config_t *cfg;
+	char buf[16];
+	int ret, index;
+
+	ret = conf_get_by_keys(root, key1, key2, &cfg);
+	if (ret == -ENOENT)
+		cfg = NULL;
+	else if (ret < 0)
+		ksft_exit_fail_msg("key '%s'.'%s' search error: %s\n", key1, key2, snd_strerror(ret));
+	for (index = 0; index < array_size; index++) {
+		if (cfg == NULL) {
+			array[index] = def;
+		} else {
+			sprintf(buf, "%i", index);
+			array[index] = conf_get_string(cfg, buf, NULL, def);
+		}
+	}
+}
diff --git a/tools/testing/selftests/alsa/conf.d/Lenovo_ThinkPad_P1_Gen2.conf b/tools/testing/selftests/alsa/conf.d/Lenovo_ThinkPad_P1_Gen2.conf
new file mode 100644
index 000000000000..5b40a916295d
--- /dev/null
+++ b/tools/testing/selftests/alsa/conf.d/Lenovo_ThinkPad_P1_Gen2.conf
@@ -0,0 +1,84 @@
+#
+# Example configuration for Lenovo ThinkPad P1 Gen2
+#
+
+#
+# Use regex match for the string read from the given sysfs path
+#
+# The sysfs root directory (/sys) is hardwired in the test code
+# (may be changed on demand).
+#
+# All strings must match.
+#
+sysfs [
+	{
+		path "class/dmi/id/product_sku"
+		regex "LENOVO_MT_20QU_BU_Think_FM_ThinkPad P1 Gen 2"
+	}
+]
+
+card.hda {
+	#
+	# Use regex match for the /sys/class/sound/card*/ tree (relative)
+	#
+	sysfs [
+		{
+			path "device/subsystem_device"
+			regex "0x229e"
+		}
+		{
+			path "device/subsystem_vendor"
+			regex "0x17aa"
+		}
+	]
+
+	#
+	# PCM configuration
+	#
+	# pcm.0.0 - device 0 subdevice 0
+	#
+	pcm.0.0 {
+		PLAYBACK {
+			test.time1 {
+				access RW_INTERLEAVED	# can be omitted - default
+				format S16_LE		# can be omitted - default
+				rate 48000		# can be omitted - default
+				channels 2		# can be omitted - default
+				period_size 512
+				buffer_size 4096
+			}
+			test.time2 {
+				access RW_INTERLEAVED
+				format S16_LE
+				rate 48000
+				channels 2
+				period_size 24000
+				buffer_size 192000
+			}
+			test.time3 {
+				access RW_INTERLEAVED
+				format S16_LE
+				rate 44100
+				channels 2
+				period_size 24000
+				buffer_size 192000
+			}
+		}
+		CAPTURE {
+			# use default tests, check for the presence
+		}
+	}
+	#
+	# uncomment to force the missing device checks
+	#
+	#pcm.0.2 {
+	#	PLAYBACK {
+	#		# check for the presence
+	#	}
+	#}
+	#pcm.0.3 {
+	#	CAPTURE {
+	#		# check for the presence
+	#	}
+	#}
+}
diff --git a/tools/testing/selftests/alsa/global-timer.c b/tools/testing/selftests/alsa/global-timer.c
new file mode 100644
index 000000000000..c15ec0ba851a
--- /dev/null
+++ b/tools/testing/selftests/alsa/global-timer.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This tool is used by the utimer test, and it allows us to
+ * count the ticks of a global timer in a certain time frame
+ * (which is set by `timeout` parameter).
+ *
+ * Author: Ivan Orlov <ivan.orlov0322@gmail.com>
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <alsa/asoundlib.h>
+#include <time.h>
+
+static int ticked;
+static void async_callback(snd_async_handler_t *ahandler)
+{
+	ticked++;
+}
+
+static char timer_name[64];
+static void bind_to_timer(int device, int subdevice, int timeout)
+{
+	snd_timer_t *handle;
+	snd_timer_params_t *params;
+	snd_async_handler_t *ahandler;
+
+	time_t end;
+
+	sprintf(timer_name, "hw:CLASS=%d,SCLASS=%d,DEV=%d,SUBDEV=%d",
+		SND_TIMER_CLASS_GLOBAL, SND_TIMER_SCLASS_NONE,
+		device, subdevice);
+
+	snd_timer_params_alloca(&params);
+
+	if (snd_timer_open(&handle, timer_name, SND_TIMER_OPEN_NONBLOCK) < 0) {
+		perror("Can't open the timer");
+		exit(EXIT_FAILURE);
+	}
+
+	snd_timer_params_set_auto_start(params, 1);
+	snd_timer_params_set_ticks(params, 1);
+	if (snd_timer_params(handle, params) < 0) {
+		perror("Can't set timer params");
+		exit(EXIT_FAILURE);
+	}
+
+	if (snd_async_add_timer_handler(&ahandler, handle, async_callback, NULL) < 0) {
+		perror("Can't create a handler");
+		exit(EXIT_FAILURE);
+	}
+	end = time(NULL) + timeout;
+	if (snd_timer_start(handle) < 0) {
+		perror("Failed to start the timer");
+		exit(EXIT_FAILURE);
+	}
+	printf("Timer has started\n");
+	while (time(NULL) <= end) {
+		/*
+		 * Waiting for the timeout to elapse. Can't use sleep here, as it gets
+		 * constantly interrupted by the signal from the timer (SIGIO)
+		 */
+	}
+	snd_timer_stop(handle);
+	snd_timer_close(handle);
+}
+
+int main(int argc, char *argv[])
+{
+	int device, subdevice, timeout;
+
+	if (argc < 4) {
+		perror("Usage: %s <device> <subdevice> <timeout>");
+		return EXIT_FAILURE;
+	}
+
+	setlinebuf(stdout);
+
+	device = atoi(argv[1]);
+	subdevice = atoi(argv[2]);
+	timeout = atoi(argv[3]);
+
+	bind_to_timer(device, subdevice, timeout);
+
+	printf("Total ticks count: %d\n", ticked);
+
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/alsa/mixer-test.c b/tools/testing/selftests/alsa/mixer-test.c
new file mode 100644
index 000000000000..d4f845c32804
--- /dev/null
+++ b/tools/testing/selftests/alsa/mixer-test.c
@@ -0,0 +1,1145 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// kselftest for the ALSA mixer API
+//
+// Original author: Mark Brown <broonie@kernel.org>
+// Copyright (c) 2021-2 Arm Limited
+
+// This test will iterate over all cards detected in the system, exercising
+// every mixer control it can find.  This may conflict with other system
+// software if there is audio activity so is best run on a system with a
+// minimal active userspace.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <limits.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <math.h>
+#include <errno.h>
+#include <assert.h>
+#include <alsa/asoundlib.h>
+#include <poll.h>
+#include <stdint.h>
+
+#include "kselftest.h"
+#include "alsa-local.h"
+
+#define TESTS_PER_CONTROL 7
+
+struct card_data {
+	snd_ctl_t *handle;
+	int card;
+	snd_ctl_card_info_t *info;
+	const char *card_name;
+	struct pollfd pollfd;
+	int num_ctls;
+	snd_ctl_elem_list_t *ctls;
+	struct card_data *next;
+};
+
+struct ctl_data {
+	const char *name;
+	snd_ctl_elem_id_t *id;
+	snd_ctl_elem_info_t *info;
+	snd_ctl_elem_value_t *def_val;
+	int elem;
+	int event_missing;
+	int event_spurious;
+	struct card_data *card;
+	struct ctl_data *next;
+};
+
+int num_cards;
+int num_controls;
+struct card_data *card_list;
+struct ctl_data *ctl_list;
+
+static void find_controls(void)
+{
+	char name[32];
+	int card, ctl, err;
+	struct card_data *card_data;
+	struct ctl_data *ctl_data;
+	snd_config_t *config;
+	char *card_name, *card_longname;
+
+	card = -1;
+	if (snd_card_next(&card) < 0 || card < 0)
+		return;
+
+	config = get_alsalib_config();
+
+	while (card >= 0) {
+		sprintf(name, "hw:%d", card);
+
+		card_data = malloc(sizeof(*card_data));
+		if (!card_data)
+			ksft_exit_fail_msg("Out of memory\n");
+
+		err = snd_ctl_open_lconf(&card_data->handle, name, 0, config);
+		if (err < 0) {
+			ksft_print_msg("Failed to get hctl for card %d: %s\n",
+				       card, snd_strerror(err));
+			goto next_card;
+		}
+
+		err = snd_card_get_name(card, &card_name);
+		if (err != 0)
+			card_name = "Unknown";
+		err = snd_card_get_longname(card, &card_longname);
+		if (err != 0)
+			card_longname = "Unknown";
+
+		err = snd_ctl_card_info_malloc(&card_data->info);
+		if (err != 0)
+			ksft_exit_fail_msg("Failed to allocate card info: %d\n",
+				err);
+
+		err = snd_ctl_card_info(card_data->handle, card_data->info);
+		if (err == 0) {
+			card_data->card_name = snd_ctl_card_info_get_id(card_data->info);
+			if (!card_data->card_name)
+				ksft_print_msg("Failed to get card ID\n");
+		} else {
+			ksft_print_msg("Failed to get card info: %d\n", err);
+		}
+
+		if (!card_data->card_name)
+			card_data->card_name = "Unknown";
+
+		ksft_print_msg("Card %d/%s - %s (%s)\n", card,
+			       card_data->card_name, card_name, card_longname);
+
+		/* Count controls */
+		snd_ctl_elem_list_malloc(&card_data->ctls);
+		snd_ctl_elem_list(card_data->handle, card_data->ctls);
+		card_data->num_ctls = snd_ctl_elem_list_get_count(card_data->ctls);
+
+		/* Enumerate control information */
+		snd_ctl_elem_list_alloc_space(card_data->ctls, card_data->num_ctls);
+		snd_ctl_elem_list(card_data->handle, card_data->ctls);
+
+		card_data->card = num_cards++;
+		card_data->next = card_list;
+		card_list = card_data;
+
+		num_controls += card_data->num_ctls;
+
+		for (ctl = 0; ctl < card_data->num_ctls; ctl++) {
+			ctl_data = malloc(sizeof(*ctl_data));
+			if (!ctl_data)
+				ksft_exit_fail_msg("Out of memory\n");
+
+			memset(ctl_data, 0, sizeof(*ctl_data));
+			ctl_data->card = card_data;
+			ctl_data->elem = ctl;
+			ctl_data->name = snd_ctl_elem_list_get_name(card_data->ctls,
+								    ctl);
+
+			err = snd_ctl_elem_id_malloc(&ctl_data->id);
+			if (err < 0)
+				ksft_exit_fail_msg("Out of memory\n");
+
+			err = snd_ctl_elem_info_malloc(&ctl_data->info);
+			if (err < 0)
+				ksft_exit_fail_msg("Out of memory\n");
+
+			err = snd_ctl_elem_value_malloc(&ctl_data->def_val);
+			if (err < 0)
+				ksft_exit_fail_msg("Out of memory\n");
+
+			snd_ctl_elem_list_get_id(card_data->ctls, ctl,
+						 ctl_data->id);
+			snd_ctl_elem_info_set_id(ctl_data->info, ctl_data->id);
+			err = snd_ctl_elem_info(card_data->handle,
+						ctl_data->info);
+			if (err < 0) {
+				ksft_print_msg("%s getting info for %s\n",
+					       snd_strerror(err),
+					       ctl_data->name);
+			}
+
+			snd_ctl_elem_value_set_id(ctl_data->def_val,
+						  ctl_data->id);
+
+			ctl_data->next = ctl_list;
+			ctl_list = ctl_data;
+		}
+
+		/* Set up for events */
+		err = snd_ctl_subscribe_events(card_data->handle, true);
+		if (err < 0) {
+			ksft_exit_fail_msg("snd_ctl_subscribe_events() failed for card %d: %d\n",
+					   card, err);
+		}
+
+		err = snd_ctl_poll_descriptors_count(card_data->handle);
+		if (err != 1) {
+			ksft_exit_fail_msg("Unexpected descriptor count %d for card %d\n",
+					   err, card);
+		}
+
+		err = snd_ctl_poll_descriptors(card_data->handle,
+					       &card_data->pollfd, 1);
+		if (err != 1) {
+			ksft_exit_fail_msg("snd_ctl_poll_descriptors() failed for card %d: %d\n",
+				       card, err);
+		}
+
+	next_card:
+		if (snd_card_next(&card) < 0) {
+			ksft_print_msg("snd_card_next");
+			break;
+		}
+	}
+
+	snd_config_delete(config);
+}
+
+/*
+ * Block for up to timeout ms for an event, returns a negative value
+ * on error, 0 for no event and 1 for an event.
+ */
+static int wait_for_event(struct ctl_data *ctl, int timeout)
+{
+	unsigned short revents;
+	snd_ctl_event_t *event;
+	int err;
+	unsigned int mask = 0;
+	unsigned int ev_id;
+
+	snd_ctl_event_alloca(&event);
+
+	do {
+		err = poll(&(ctl->card->pollfd), 1, timeout);
+		if (err < 0) {
+			ksft_print_msg("poll() failed for %s: %s (%d)\n",
+				       ctl->name, strerror(errno), errno);
+			return -1;
+		}
+		/* Timeout */
+		if (err == 0)
+			return 0;
+
+		err = snd_ctl_poll_descriptors_revents(ctl->card->handle,
+						       &(ctl->card->pollfd),
+						       1, &revents);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_poll_descriptors_revents() failed for %s: %d\n",
+				       ctl->name, err);
+			return err;
+		}
+		if (revents & POLLERR) {
+			ksft_print_msg("snd_ctl_poll_descriptors_revents() reported POLLERR for %s\n",
+				       ctl->name);
+			return -1;
+		}
+		/* No read events */
+		if (!(revents & POLLIN)) {
+			ksft_print_msg("No POLLIN\n");
+			continue;
+		}
+
+		err = snd_ctl_read(ctl->card->handle, event);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_read() failed for %s: %d\n",
+			       ctl->name, err);
+			return err;
+		}
+
+		if (snd_ctl_event_get_type(event) != SND_CTL_EVENT_ELEM)
+			continue;
+
+		/* The ID returned from the event is 1 less than numid */
+		mask = snd_ctl_event_elem_get_mask(event);
+		ev_id = snd_ctl_event_elem_get_numid(event);
+		if (ev_id != snd_ctl_elem_info_get_numid(ctl->info)) {
+			ksft_print_msg("Event for unexpected ctl %s\n",
+				       snd_ctl_event_elem_get_name(event));
+			continue;
+		}
+
+		if ((mask & SND_CTL_EVENT_MASK_REMOVE) == SND_CTL_EVENT_MASK_REMOVE) {
+			ksft_print_msg("Removal event for %s\n",
+				       ctl->name);
+			return -1;
+		}
+	} while ((mask & SND_CTL_EVENT_MASK_VALUE) != SND_CTL_EVENT_MASK_VALUE);
+
+	return 1;
+}
+
+static bool ctl_value_index_valid(struct ctl_data *ctl,
+				  snd_ctl_elem_value_t *val,
+				  int index)
+{
+	long int_val;
+	long long int64_val;
+
+	switch (snd_ctl_elem_info_get_type(ctl->info)) {
+	case SND_CTL_ELEM_TYPE_NONE:
+		ksft_print_msg("%s.%d Invalid control type NONE\n",
+			       ctl->name, index);
+		return false;
+
+	case SND_CTL_ELEM_TYPE_BOOLEAN:
+		int_val = snd_ctl_elem_value_get_boolean(val, index);
+		switch (int_val) {
+		case 0:
+		case 1:
+			break;
+		default:
+			ksft_print_msg("%s.%d Invalid boolean value %ld\n",
+				       ctl->name, index, int_val);
+			return false;
+		}
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER:
+		int_val = snd_ctl_elem_value_get_integer(val, index);
+
+		if (int_val < snd_ctl_elem_info_get_min(ctl->info)) {
+			ksft_print_msg("%s.%d value %ld less than minimum %ld\n",
+				       ctl->name, index, int_val,
+				       snd_ctl_elem_info_get_min(ctl->info));
+			return false;
+		}
+
+		if (int_val > snd_ctl_elem_info_get_max(ctl->info)) {
+			ksft_print_msg("%s.%d value %ld more than maximum %ld\n",
+				       ctl->name, index, int_val,
+				       snd_ctl_elem_info_get_max(ctl->info));
+			return false;
+		}
+
+		/* Only check step size if there is one and we're in bounds */
+		if (snd_ctl_elem_info_get_step(ctl->info) &&
+		    (int_val - snd_ctl_elem_info_get_min(ctl->info) %
+		     snd_ctl_elem_info_get_step(ctl->info))) {
+			ksft_print_msg("%s.%d value %ld invalid for step %ld minimum %ld\n",
+				       ctl->name, index, int_val,
+				       snd_ctl_elem_info_get_step(ctl->info),
+				       snd_ctl_elem_info_get_min(ctl->info));
+			return false;
+		}
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER64:
+		int64_val = snd_ctl_elem_value_get_integer64(val, index);
+
+		if (int64_val < snd_ctl_elem_info_get_min64(ctl->info)) {
+			ksft_print_msg("%s.%d value %lld less than minimum %lld\n",
+				       ctl->name, index, int64_val,
+				       snd_ctl_elem_info_get_min64(ctl->info));
+			return false;
+		}
+
+		if (int64_val > snd_ctl_elem_info_get_max64(ctl->info)) {
+			ksft_print_msg("%s.%d value %lld more than maximum %ld\n",
+				       ctl->name, index, int64_val,
+				       snd_ctl_elem_info_get_max(ctl->info));
+			return false;
+		}
+
+		/* Only check step size if there is one and we're in bounds */
+		if (snd_ctl_elem_info_get_step64(ctl->info) &&
+		    (int64_val - snd_ctl_elem_info_get_min64(ctl->info)) %
+		    snd_ctl_elem_info_get_step64(ctl->info)) {
+			ksft_print_msg("%s.%d value %lld invalid for step %lld minimum %lld\n",
+				       ctl->name, index, int64_val,
+				       snd_ctl_elem_info_get_step64(ctl->info),
+				       snd_ctl_elem_info_get_min64(ctl->info));
+			return false;
+		}
+		break;
+
+	case SND_CTL_ELEM_TYPE_ENUMERATED:
+		int_val = snd_ctl_elem_value_get_enumerated(val, index);
+
+		if (int_val < 0) {
+			ksft_print_msg("%s.%d negative value %ld for enumeration\n",
+				       ctl->name, index, int_val);
+			return false;
+		}
+
+		if (int_val >= snd_ctl_elem_info_get_items(ctl->info)) {
+			ksft_print_msg("%s.%d value %ld more than item count %u\n",
+				       ctl->name, index, int_val,
+				       snd_ctl_elem_info_get_items(ctl->info));
+			return false;
+		}
+		break;
+
+	default:
+		/* No tests for other types */
+		break;
+	}
+
+	return true;
+}
+
+/*
+ * Check that the provided value meets the constraints for the
+ * provided control.
+ */
+static bool ctl_value_valid(struct ctl_data *ctl, snd_ctl_elem_value_t *val)
+{
+	int i;
+	bool valid = true;
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++)
+		if (!ctl_value_index_valid(ctl, val, i))
+			valid = false;
+
+	return valid;
+}
+
+/*
+ * Check that we can read the default value and it is valid. Write
+ * tests use the read value to restore the default.
+ */
+static void test_ctl_get_value(struct ctl_data *ctl)
+{
+	int err;
+
+	/* If the control is turned off let's be polite */
+	if (snd_ctl_elem_info_is_inactive(ctl->info)) {
+		ksft_print_msg("%s is inactive\n", ctl->name);
+		ksft_test_result_skip("get_value.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	/* Can't test reading on an unreadable control */
+	if (!snd_ctl_elem_info_is_readable(ctl->info)) {
+		ksft_print_msg("%s is not readable\n", ctl->name);
+		ksft_test_result_skip("get_value.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	err = snd_ctl_elem_read(ctl->card->handle, ctl->def_val);
+	if (err < 0) {
+		ksft_print_msg("snd_ctl_elem_read() failed: %s\n",
+			       snd_strerror(err));
+		goto out;
+	}
+
+	if (!ctl_value_valid(ctl, ctl->def_val))
+		err = -EINVAL;
+
+out:
+	ksft_test_result(err >= 0, "get_value.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static bool strend(const char *haystack, const char *needle)
+{
+	size_t haystack_len = strlen(haystack);
+	size_t needle_len = strlen(needle);
+
+	if (needle_len > haystack_len)
+		return false;
+	return strcmp(haystack + haystack_len - needle_len, needle) == 0;
+}
+
+static void test_ctl_name(struct ctl_data *ctl)
+{
+	bool name_ok = true;
+
+	ksft_print_msg("%s.%d %s\n", ctl->card->card_name, ctl->elem,
+		       ctl->name);
+
+	/* Only boolean controls should end in Switch */
+	if (strend(ctl->name, " Switch")) {
+		if (snd_ctl_elem_info_get_type(ctl->info) != SND_CTL_ELEM_TYPE_BOOLEAN) {
+			ksft_print_msg("%d.%d %s ends in Switch but is not boolean\n",
+				       ctl->card->card, ctl->elem, ctl->name);
+			name_ok = false;
+		}
+	}
+
+	/* Writeable boolean controls should end in Switch */
+	if (snd_ctl_elem_info_get_type(ctl->info) == SND_CTL_ELEM_TYPE_BOOLEAN &&
+	    snd_ctl_elem_info_is_writable(ctl->info)) {
+		if (!strend(ctl->name, " Switch")) {
+			ksft_print_msg("%d.%d %s is a writeable boolean but not a Switch\n",
+				       ctl->card->card, ctl->elem, ctl->name);
+			name_ok = false;
+		}
+	}
+
+	ksft_test_result(name_ok, "name.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static void show_values(struct ctl_data *ctl, snd_ctl_elem_value_t *orig_val,
+			snd_ctl_elem_value_t *read_val)
+{
+	long long orig_int, read_int;
+	int i;
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		switch (snd_ctl_elem_info_get_type(ctl->info)) {
+		case SND_CTL_ELEM_TYPE_BOOLEAN:
+			orig_int = snd_ctl_elem_value_get_boolean(orig_val, i);
+			read_int = snd_ctl_elem_value_get_boolean(read_val, i);
+			break;
+
+		case SND_CTL_ELEM_TYPE_INTEGER:
+			orig_int = snd_ctl_elem_value_get_integer(orig_val, i);
+			read_int = snd_ctl_elem_value_get_integer(read_val, i);
+			break;
+
+		case SND_CTL_ELEM_TYPE_INTEGER64:
+			orig_int = snd_ctl_elem_value_get_integer64(orig_val,
+								    i);
+			read_int = snd_ctl_elem_value_get_integer64(read_val,
+								    i);
+			break;
+
+		case SND_CTL_ELEM_TYPE_ENUMERATED:
+			orig_int = snd_ctl_elem_value_get_enumerated(orig_val,
+								     i);
+			read_int = snd_ctl_elem_value_get_enumerated(read_val,
+								     i);
+			break;
+
+		default:
+			return;
+		}
+
+		ksft_print_msg("%s.%d orig %lld read %lld, is_volatile %d\n",
+			       ctl->name, i, orig_int, read_int,
+			       snd_ctl_elem_info_is_volatile(ctl->info));
+	}
+}
+
+static bool show_mismatch(struct ctl_data *ctl, int index,
+			  snd_ctl_elem_value_t *read_val,
+			  snd_ctl_elem_value_t *expected_val)
+{
+	long long expected_int, read_int;
+
+	/*
+	 * We factor out the code to compare values representable as
+	 * integers, ensure that check doesn't log otherwise.
+	 */
+	expected_int = 0;
+	read_int = 0;
+
+	switch (snd_ctl_elem_info_get_type(ctl->info)) {
+	case SND_CTL_ELEM_TYPE_BOOLEAN:
+		expected_int = snd_ctl_elem_value_get_boolean(expected_val,
+							      index);
+		read_int = snd_ctl_elem_value_get_boolean(read_val, index);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER:
+		expected_int = snd_ctl_elem_value_get_integer(expected_val,
+							      index);
+		read_int = snd_ctl_elem_value_get_integer(read_val, index);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER64:
+		expected_int = snd_ctl_elem_value_get_integer64(expected_val,
+								index);
+		read_int = snd_ctl_elem_value_get_integer64(read_val,
+							    index);
+		break;
+
+	case SND_CTL_ELEM_TYPE_ENUMERATED:
+		expected_int = snd_ctl_elem_value_get_enumerated(expected_val,
+								 index);
+		read_int = snd_ctl_elem_value_get_enumerated(read_val,
+							     index);
+		break;
+
+	default:
+		break;
+	}
+
+	if (expected_int != read_int) {
+		/*
+		 * NOTE: The volatile attribute means that the hardware
+		 * can voluntarily change the state of control element
+		 * independent of any operation by software.  
+		 */
+		bool is_volatile = snd_ctl_elem_info_is_volatile(ctl->info);
+		ksft_print_msg("%s.%d expected %lld but read %lld, is_volatile %d\n",
+			       ctl->name, index, expected_int, read_int, is_volatile);
+		return !is_volatile;
+	} else {
+		return false;
+	}
+}
+
+/*
+ * Write a value then if possible verify that we get the expected
+ * result.  An optional expected value can be provided if we expect
+ * the write to fail, for verifying that invalid writes don't corrupt
+ * anything.
+ */
+static int write_and_verify(struct ctl_data *ctl,
+			    snd_ctl_elem_value_t *write_val,
+			    snd_ctl_elem_value_t *expected_val)
+{
+	int err, i;
+	bool error_expected, mismatch_shown;
+	snd_ctl_elem_value_t *initial_val, *read_val, *w_val;
+	snd_ctl_elem_value_alloca(&initial_val);
+	snd_ctl_elem_value_alloca(&read_val);
+	snd_ctl_elem_value_alloca(&w_val);
+
+	/*
+	 * We need to copy the write value since writing can modify
+	 * the value which causes surprises, and allocate an expected
+	 * value if we expect to read back what we wrote.
+	 */
+	snd_ctl_elem_value_copy(w_val, write_val);
+	if (expected_val) {
+		error_expected = true;
+	} else {
+		error_expected = false;
+		snd_ctl_elem_value_alloca(&expected_val);
+		snd_ctl_elem_value_copy(expected_val, write_val);
+	}
+
+	/* Store the value before we write */
+	if (snd_ctl_elem_info_is_readable(ctl->info)) {
+		snd_ctl_elem_value_set_id(initial_val, ctl->id);
+
+		err = snd_ctl_elem_read(ctl->card->handle, initial_val);
+		if (err < 0) {
+			ksft_print_msg("snd_ctl_elem_read() failed: %s\n",
+				       snd_strerror(err));
+			return err;
+		}
+	}
+
+	/*
+	 * Do the write, if we have an expected value ignore the error
+	 * and carry on to validate the expected value.
+	 */
+	err = snd_ctl_elem_write(ctl->card->handle, w_val);
+	if (err < 0 && !error_expected) {
+		ksft_print_msg("snd_ctl_elem_write() failed: %s\n",
+			       snd_strerror(err));
+		return err;
+	}
+
+	/* Can we do the verification part? */
+	if (!snd_ctl_elem_info_is_readable(ctl->info))
+		return err;
+
+	snd_ctl_elem_value_set_id(read_val, ctl->id);
+
+	err = snd_ctl_elem_read(ctl->card->handle, read_val);
+	if (err < 0) {
+		ksft_print_msg("snd_ctl_elem_read() failed: %s\n",
+			       snd_strerror(err));
+		return err;
+	}
+
+	/*
+	 * We can't verify any specific value for volatile controls
+	 * but we should still check that whatever we read is a valid
+	 * vale for the control.
+	 */
+	if (snd_ctl_elem_info_is_volatile(ctl->info)) {
+		if (!ctl_value_valid(ctl, read_val)) {
+			ksft_print_msg("Volatile control %s has invalid value\n",
+				       ctl->name);
+			return -EINVAL;
+		}
+
+		return 0;
+	}
+
+	/*
+	 * Check for an event if the value changed, or confirm that
+	 * there was none if it didn't.  We rely on the kernel
+	 * generating the notification before it returns from the
+	 * write, this is currently true, should that ever change this
+	 * will most likely break and need updating.
+	 */
+	err = wait_for_event(ctl, 0);
+	if (snd_ctl_elem_value_compare(initial_val, read_val)) {
+		if (err < 1) {
+			ksft_print_msg("No event generated for %s\n",
+				       ctl->name);
+			show_values(ctl, initial_val, read_val);
+			ctl->event_missing++;
+		}
+	} else {
+		if (err != 0) {
+			ksft_print_msg("Spurious event generated for %s\n",
+				       ctl->name);
+			show_values(ctl, initial_val, read_val);
+			ctl->event_spurious++;
+		}
+	}
+
+	/*
+	 * Use the libray to compare values, if there's a mismatch
+	 * carry on and try to provide a more useful diagnostic than
+	 * just "mismatch".
+	 */
+	if (!snd_ctl_elem_value_compare(expected_val, read_val))
+		return 0;
+
+	mismatch_shown = false;
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++)
+		if (show_mismatch(ctl, i, read_val, expected_val))
+			mismatch_shown = true;
+
+	if (!mismatch_shown)
+		ksft_print_msg("%s read and written values differ\n",
+			       ctl->name);
+
+	return -1;
+}
+
+/*
+ * Make sure we can write the default value back to the control, this
+ * should validate that at least some write works.
+ */
+static void test_ctl_write_default(struct ctl_data *ctl)
+{
+	int err;
+
+	/* If the control is turned off let's be polite */
+	if (snd_ctl_elem_info_is_inactive(ctl->info)) {
+		ksft_print_msg("%s is inactive\n", ctl->name);
+		ksft_test_result_skip("write_default.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	if (!snd_ctl_elem_info_is_writable(ctl->info)) {
+		ksft_print_msg("%s is not writeable\n", ctl->name);
+		ksft_test_result_skip("write_default.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	/* No idea what the default was for unreadable controls */
+	if (!snd_ctl_elem_info_is_readable(ctl->info)) {
+		ksft_print_msg("%s couldn't read default\n", ctl->name);
+		ksft_test_result_skip("write_default.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	err = write_and_verify(ctl, ctl->def_val, NULL);
+
+	ksft_test_result(err >= 0, "write_default.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static bool test_ctl_write_valid_boolean(struct ctl_data *ctl)
+{
+	int err, i, j;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		for (j = 0; j < 2; j++) {
+			snd_ctl_elem_value_set_boolean(val, i, j);
+			err = write_and_verify(ctl, val, NULL);
+			if (err != 0)
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_valid_integer(struct ctl_data *ctl)
+{
+	int err;
+	int i;
+	long j, step;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	step = snd_ctl_elem_info_get_step(ctl->info);
+	if (!step)
+		step = 1;
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		for (j = snd_ctl_elem_info_get_min(ctl->info);
+		     j <= snd_ctl_elem_info_get_max(ctl->info); j += step) {
+
+			snd_ctl_elem_value_set_integer(val, i, j);
+			err = write_and_verify(ctl, val, NULL);
+			if (err != 0)
+				fail = true;
+		}
+	}
+
+
+	return !fail;
+}
+
+static bool test_ctl_write_valid_integer64(struct ctl_data *ctl)
+{
+	int err, i;
+	long long j, step;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	step = snd_ctl_elem_info_get_step64(ctl->info);
+	if (!step)
+		step = 1;
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		for (j = snd_ctl_elem_info_get_min64(ctl->info);
+		     j <= snd_ctl_elem_info_get_max64(ctl->info); j += step) {
+
+			snd_ctl_elem_value_set_integer64(val, i, j);
+			err = write_and_verify(ctl, val, NULL);
+			if (err != 0)
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_valid_enumerated(struct ctl_data *ctl)
+{
+	int err, i, j;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		for (j = 0; j < snd_ctl_elem_info_get_items(ctl->info); j++) {
+			snd_ctl_elem_value_set_enumerated(val, i, j);
+			err = write_and_verify(ctl, val, NULL);
+			if (err != 0)
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static void test_ctl_write_valid(struct ctl_data *ctl)
+{
+	bool pass;
+
+	/* If the control is turned off let's be polite */
+	if (snd_ctl_elem_info_is_inactive(ctl->info)) {
+		ksft_print_msg("%s is inactive\n", ctl->name);
+		ksft_test_result_skip("write_valid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	if (!snd_ctl_elem_info_is_writable(ctl->info)) {
+		ksft_print_msg("%s is not writeable\n", ctl->name);
+		ksft_test_result_skip("write_valid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	switch (snd_ctl_elem_info_get_type(ctl->info)) {
+	case SND_CTL_ELEM_TYPE_BOOLEAN:
+		pass = test_ctl_write_valid_boolean(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER:
+		pass = test_ctl_write_valid_integer(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER64:
+		pass = test_ctl_write_valid_integer64(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_ENUMERATED:
+		pass = test_ctl_write_valid_enumerated(ctl);
+		break;
+
+	default:
+		/* No tests for this yet */
+		ksft_test_result_skip("write_valid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	/* Restore the default value to minimise disruption */
+	write_and_verify(ctl, ctl->def_val, NULL);
+
+	ksft_test_result(pass, "write_valid.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static bool test_ctl_write_invalid_value(struct ctl_data *ctl,
+					 snd_ctl_elem_value_t *val)
+{
+	int err;
+
+	/* Ideally this will fail... */
+	err = snd_ctl_elem_write(ctl->card->handle, val);
+	if (err < 0)
+		return false;
+
+	/* ...but some devices will clamp to an in range value */
+	err = snd_ctl_elem_read(ctl->card->handle, val);
+	if (err < 0) {
+		ksft_print_msg("%s failed to read: %s\n",
+			       ctl->name, snd_strerror(err));
+		return true;
+	}
+
+	return !ctl_value_valid(ctl, val);
+}
+
+static bool test_ctl_write_invalid_boolean(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_boolean(val, i, 2);
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_integer(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		if (snd_ctl_elem_info_get_min(ctl->info) != LONG_MIN) {
+			/* Just under range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i,
+			       snd_ctl_elem_info_get_min(ctl->info) - 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Minimum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i, LONG_MIN);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+
+		if (snd_ctl_elem_info_get_max(ctl->info) != LONG_MAX) {
+			/* Just over range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i,
+			       snd_ctl_elem_info_get_max(ctl->info) + 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Maximum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer(val, i, LONG_MAX);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_integer64(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		if (snd_ctl_elem_info_get_min64(ctl->info) != LLONG_MIN) {
+			/* Just under range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i,
+				snd_ctl_elem_info_get_min64(ctl->info) - 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Minimum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i, LLONG_MIN);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+
+		if (snd_ctl_elem_info_get_max64(ctl->info) != LLONG_MAX) {
+			/* Just over range */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i,
+				snd_ctl_elem_info_get_max64(ctl->info) + 1);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+
+			/* Maximum representable value */
+			snd_ctl_elem_value_copy(val, ctl->def_val);
+			snd_ctl_elem_value_set_integer64(val, i, LLONG_MAX);
+
+			if (test_ctl_write_invalid_value(ctl, val))
+				fail = true;
+		}
+	}
+
+	return !fail;
+}
+
+static bool test_ctl_write_invalid_enumerated(struct ctl_data *ctl)
+{
+	int i;
+	bool fail = false;
+	snd_ctl_elem_value_t *val;
+	snd_ctl_elem_value_alloca(&val);
+
+	snd_ctl_elem_value_set_id(val, ctl->id);
+
+	for (i = 0; i < snd_ctl_elem_info_get_count(ctl->info); i++) {
+		/* One beyond maximum */
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_enumerated(val, i,
+				  snd_ctl_elem_info_get_items(ctl->info));
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+
+		/* Maximum representable value */
+		snd_ctl_elem_value_copy(val, ctl->def_val);
+		snd_ctl_elem_value_set_enumerated(val, i, UINT_MAX);
+
+		if (test_ctl_write_invalid_value(ctl, val))
+			fail = true;
+
+	}
+
+	return !fail;
+}
+
+
+static void test_ctl_write_invalid(struct ctl_data *ctl)
+{
+	bool pass;
+
+	/* If the control is turned off let's be polite */
+	if (snd_ctl_elem_info_is_inactive(ctl->info)) {
+		ksft_print_msg("%s is inactive\n", ctl->name);
+		ksft_test_result_skip("write_invalid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	if (!snd_ctl_elem_info_is_writable(ctl->info)) {
+		ksft_print_msg("%s is not writeable\n", ctl->name);
+		ksft_test_result_skip("write_invalid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	switch (snd_ctl_elem_info_get_type(ctl->info)) {
+	case SND_CTL_ELEM_TYPE_BOOLEAN:
+		pass = test_ctl_write_invalid_boolean(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER:
+		pass = test_ctl_write_invalid_integer(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_INTEGER64:
+		pass = test_ctl_write_invalid_integer64(ctl);
+		break;
+
+	case SND_CTL_ELEM_TYPE_ENUMERATED:
+		pass = test_ctl_write_invalid_enumerated(ctl);
+		break;
+
+	default:
+		/* No tests for this yet */
+		ksft_test_result_skip("write_invalid.%s.%d\n",
+				      ctl->card->card_name, ctl->elem);
+		return;
+	}
+
+	/* Restore the default value to minimise disruption */
+	write_and_verify(ctl, ctl->def_val, NULL);
+
+	ksft_test_result(pass, "write_invalid.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static void test_ctl_event_missing(struct ctl_data *ctl)
+{
+	ksft_test_result(!ctl->event_missing, "event_missing.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+static void test_ctl_event_spurious(struct ctl_data *ctl)
+{
+	ksft_test_result(!ctl->event_spurious, "event_spurious.%s.%d\n",
+			 ctl->card->card_name, ctl->elem);
+}
+
+int main(void)
+{
+	struct ctl_data *ctl;
+
+	ksft_print_header();
+
+	find_controls();
+
+	ksft_set_plan(num_controls * TESTS_PER_CONTROL);
+
+	for (ctl = ctl_list; ctl != NULL; ctl = ctl->next) {
+		/*
+		 * Must test get_value() before we write anything, the
+		 * test stores the default value for later cleanup.
+		 */
+		test_ctl_get_value(ctl);
+		test_ctl_name(ctl);
+		test_ctl_write_default(ctl);
+		test_ctl_write_valid(ctl);
+		test_ctl_write_invalid(ctl);
+		test_ctl_event_missing(ctl);
+		test_ctl_event_spurious(ctl);
+	}
+
+	ksft_exit_pass();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/alsa/pcm-test.c b/tools/testing/selftests/alsa/pcm-test.c
new file mode 100644
index 000000000000..ee04ccef7d7c
--- /dev/null
+++ b/tools/testing/selftests/alsa/pcm-test.c
@@ -0,0 +1,671 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// kselftest for the ALSA PCM API
+//
+// Original author: Jaroslav Kysela <perex@perex.cz>
+// Copyright (c) 2022 Red Hat Inc.
+
+// This test will iterate over all cards detected in the system, exercising
+// every PCM device it can find.  This may conflict with other system
+// software if there is audio activity so is best run on a system with a
+// minimal active userspace.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <assert.h>
+#include <pthread.h>
+
+#include "kselftest.h"
+#include "alsa-local.h"
+
+typedef struct timespec timestamp_t;
+
+struct card_data {
+	int card;
+	snd_ctl_card_info_t *info;
+	const char *name;
+	pthread_t thread;
+	struct card_data *next;
+};
+
+struct card_data *card_list;
+
+struct pcm_data {
+	snd_pcm_t *handle;
+	int card;
+	int device;
+	int subdevice;
+	const char *card_name;
+	snd_pcm_stream_t stream;
+	snd_config_t *pcm_config;
+	struct pcm_data *next;
+};
+
+struct pcm_data *pcm_list;
+
+int num_missing;
+struct pcm_data *pcm_missing;
+
+snd_config_t *default_pcm_config;
+
+/* Lock while reporting results since kselftest doesn't */
+pthread_mutex_t results_lock = PTHREAD_MUTEX_INITIALIZER;
+
+enum test_class {
+	TEST_CLASS_DEFAULT,
+	TEST_CLASS_SYSTEM,
+};
+
+void timestamp_now(timestamp_t *tstamp)
+{
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, tstamp))
+		ksft_exit_fail_msg("clock_get_time\n");
+}
+
+long long timestamp_diff_ms(timestamp_t *tstamp)
+{
+	timestamp_t now, diff;
+	timestamp_now(&now);
+	if (tstamp->tv_nsec > now.tv_nsec) {
+		diff.tv_sec = now.tv_sec - tstamp->tv_sec - 1;
+		diff.tv_nsec = (now.tv_nsec + 1000000000L) - tstamp->tv_nsec;
+	} else {
+		diff.tv_sec = now.tv_sec - tstamp->tv_sec;
+		diff.tv_nsec = now.tv_nsec - tstamp->tv_nsec;
+	}
+	return (diff.tv_sec * 1000) + ((diff.tv_nsec + 500000L) / 1000000L);
+}
+
+static long device_from_id(snd_config_t *node)
+{
+	const char *id;
+	char *end;
+	long v;
+
+	if (snd_config_get_id(node, &id))
+		ksft_exit_fail_msg("snd_config_get_id\n");
+	errno = 0;
+	v = strtol(id, &end, 10);
+	if (errno || *end)
+		return -1;
+	return v;
+}
+
+static void missing_device(int card, int device, int subdevice, snd_pcm_stream_t stream)
+{
+	struct pcm_data *pcm_data;
+
+	for (pcm_data = pcm_list; pcm_data != NULL; pcm_data = pcm_data->next) {
+		if (pcm_data->card != card)
+			continue;
+		if (pcm_data->device != device)
+			continue;
+		if (pcm_data->subdevice != subdevice)
+			continue;
+		if (pcm_data->stream != stream)
+			continue;
+		return;
+	}
+	pcm_data = calloc(1, sizeof(*pcm_data));
+	if (!pcm_data)
+		ksft_exit_fail_msg("Out of memory\n");
+	pcm_data->card = card;
+	pcm_data->device = device;
+	pcm_data->subdevice = subdevice;
+	pcm_data->stream = stream;
+	pcm_data->next = pcm_missing;
+	pcm_missing = pcm_data;
+	num_missing++;
+}
+
+static void missing_devices(int card, snd_config_t *card_config)
+{
+	snd_config_t *pcm_config, *node1, *node2;
+	snd_config_iterator_t i1, i2, next1, next2;
+	int device, subdevice;
+
+	pcm_config = conf_get_subtree(card_config, "pcm", NULL);
+	if (!pcm_config)
+		return;
+	snd_config_for_each(i1, next1, pcm_config) {
+		node1 = snd_config_iterator_entry(i1);
+		device = device_from_id(node1);
+		if (device < 0)
+			continue;
+		if (snd_config_get_type(node1) != SND_CONFIG_TYPE_COMPOUND)
+			continue;
+		snd_config_for_each(i2, next2, node1) {
+			node2 = snd_config_iterator_entry(i2);
+			subdevice = device_from_id(node2);
+			if (subdevice < 0)
+				continue;
+			if (conf_get_subtree(node2, "PLAYBACK", NULL))
+				missing_device(card, device, subdevice, SND_PCM_STREAM_PLAYBACK);
+			if (conf_get_subtree(node2, "CAPTURE", NULL))
+				missing_device(card, device, subdevice, SND_PCM_STREAM_CAPTURE);
+		}
+	}
+}
+
+static void find_pcms(void)
+{
+	char name[32], key[64];
+	char *card_name, *card_longname;
+	int card, dev, subdev, count, direction, err;
+	snd_pcm_stream_t stream;
+	struct pcm_data *pcm_data;
+	snd_ctl_t *handle;
+	snd_pcm_info_t *pcm_info;
+	snd_config_t *config, *card_config, *pcm_config;
+	struct card_data *card_data;
+
+	snd_pcm_info_alloca(&pcm_info);
+
+	card = -1;
+	if (snd_card_next(&card) < 0 || card < 0)
+		return;
+
+	config = get_alsalib_config();
+
+	while (card >= 0) {
+		card_data = calloc(1, sizeof(*card_data));
+		if (!card_data)
+			ksft_exit_fail_msg("Out of memory\n");
+
+		sprintf(name, "hw:%d", card);
+
+		err = snd_ctl_open_lconf(&handle, name, 0, config);
+		if (err < 0) {
+			ksft_print_msg("Failed to get hctl for card %d: %s\n",
+				       card, snd_strerror(err));
+			goto next_card;
+		}
+
+		err = snd_card_get_name(card, &card_name);
+		if (err != 0)
+			card_name = "Unknown";
+		err = snd_card_get_longname(card, &card_longname);
+		if (err != 0)
+			card_longname = "Unknown";
+
+		err = snd_ctl_card_info_malloc(&card_data->info);
+		if (err != 0)
+			ksft_exit_fail_msg("Failed to allocate card info: %d\n",
+				err);
+
+		err = snd_ctl_card_info(handle, card_data->info);
+		if (err == 0) {
+			card_data->name = snd_ctl_card_info_get_id(card_data->info);
+			if (!card_data->name)
+				ksft_print_msg("Failed to get card ID\n");
+		} else {
+			ksft_print_msg("Failed to get card info: %d\n", err);
+		}
+
+		if (!card_data->name)
+			card_data->name = "Unknown";
+
+		ksft_print_msg("Card %d/%s - %s (%s)\n", card,
+			       card_data->name, card_name, card_longname);
+
+		card_config = conf_by_card(card);
+
+		card_data->card = card;
+		card_data->next = card_list;
+		card_list = card_data;
+
+		dev = -1;
+		while (1) {
+			if (snd_ctl_pcm_next_device(handle, &dev) < 0)
+				ksft_exit_fail_msg("snd_ctl_pcm_next_device\n");
+			if (dev < 0)
+				break;
+
+			for (direction = 0; direction < 2; direction++) {
+				stream = direction ? SND_PCM_STREAM_CAPTURE : SND_PCM_STREAM_PLAYBACK;
+				sprintf(key, "pcm.%d.%s", dev, snd_pcm_stream_name(stream));
+				pcm_config = conf_get_subtree(card_config, key, NULL);
+				if (conf_get_bool(card_config, key, "skip", false)) {
+					ksft_print_msg("skipping pcm %d.%d.%s\n", card, dev, snd_pcm_stream_name(stream));
+					continue;
+				}
+				snd_pcm_info_set_device(pcm_info, dev);
+				snd_pcm_info_set_subdevice(pcm_info, 0);
+				snd_pcm_info_set_stream(pcm_info, stream);
+				err = snd_ctl_pcm_info(handle, pcm_info);
+				if (err == -ENOENT)
+					continue;
+				if (err < 0)
+					ksft_exit_fail_msg("snd_ctl_pcm_info: %d:%d:%d\n",
+							   dev, 0, stream);
+
+				ksft_print_msg("%s.0 - %s\n", card_data->name,
+					       snd_pcm_info_get_id(pcm_info));
+
+				count = snd_pcm_info_get_subdevices_count(pcm_info);
+				for (subdev = 0; subdev < count; subdev++) {
+					sprintf(key, "pcm.%d.%d.%s", dev, subdev, snd_pcm_stream_name(stream));
+					if (conf_get_bool(card_config, key, "skip", false)) {
+						ksft_print_msg("skipping pcm %d.%d.%d.%s\n", card, dev,
+							       subdev, snd_pcm_stream_name(stream));
+						continue;
+					}
+					pcm_data = calloc(1, sizeof(*pcm_data));
+					if (!pcm_data)
+						ksft_exit_fail_msg("Out of memory\n");
+					pcm_data->card = card;
+					pcm_data->device = dev;
+					pcm_data->subdevice = subdev;
+					pcm_data->card_name = card_data->name;
+					pcm_data->stream = stream;
+					pcm_data->pcm_config = conf_get_subtree(card_config, key, NULL);
+					pcm_data->next = pcm_list;
+					pcm_list = pcm_data;
+				}
+			}
+		}
+
+		/* check for missing devices */
+		missing_devices(card, card_config);
+
+	next_card:
+		snd_ctl_close(handle);
+		if (snd_card_next(&card) < 0) {
+			ksft_print_msg("snd_card_next");
+			break;
+		}
+	}
+
+	snd_config_delete(config);
+}
+
+static void test_pcm_time(struct pcm_data *data, enum test_class class,
+			  const char *test_name, snd_config_t *pcm_cfg)
+{
+	char name[64], msg[256];
+	const int duration_s = 2, margin_ms = 100;
+	const int duration_ms = duration_s * 1000;
+	const char *cs;
+	int i, err;
+	snd_pcm_t *handle = NULL;
+	snd_pcm_access_t access = SND_PCM_ACCESS_RW_INTERLEAVED;
+	snd_pcm_format_t format, old_format;
+	const char *alt_formats[8];
+	unsigned char *samples = NULL;
+	snd_pcm_sframes_t frames;
+	long long ms;
+	long rate, channels, period_size, buffer_size;
+	unsigned int rrate;
+	snd_pcm_uframes_t rperiod_size, rbuffer_size, start_threshold;
+	timestamp_t tstamp;
+	bool pass = false;
+	snd_pcm_hw_params_t *hw_params;
+	snd_pcm_sw_params_t *sw_params;
+	const char *test_class_name;
+	bool skip = true;
+	const char *desc;
+
+	switch (class) {
+	case TEST_CLASS_DEFAULT:
+		test_class_name = "default";
+		break;
+	case TEST_CLASS_SYSTEM:
+		test_class_name = "system";
+		break;
+	default:
+		ksft_exit_fail_msg("Unknown test class %d\n", class);
+		break;
+	}
+
+	desc = conf_get_string(pcm_cfg, "description", NULL, NULL);
+	if (desc)
+		ksft_print_msg("%s.%s.%s.%d.%d.%s - %s\n",
+			       test_class_name, test_name,
+			       data->card_name, data->device, data->subdevice,
+			       snd_pcm_stream_name(data->stream),
+			       desc);
+
+
+	snd_pcm_hw_params_alloca(&hw_params);
+	snd_pcm_sw_params_alloca(&sw_params);
+
+	cs = conf_get_string(pcm_cfg, "format", NULL, "S16_LE");
+	format = snd_pcm_format_value(cs);
+	if (format == SND_PCM_FORMAT_UNKNOWN)
+		ksft_exit_fail_msg("Wrong format '%s'\n", cs);
+	conf_get_string_array(pcm_cfg, "alt_formats", NULL,
+				alt_formats, ARRAY_SIZE(alt_formats), NULL);
+	rate = conf_get_long(pcm_cfg, "rate", NULL, 48000);
+	channels = conf_get_long(pcm_cfg, "channels", NULL, 2);
+	period_size = conf_get_long(pcm_cfg, "period_size", NULL, 4096);
+	buffer_size = conf_get_long(pcm_cfg, "buffer_size", NULL, 16384);
+
+	samples = malloc((rate * channels * snd_pcm_format_physical_width(format)) / 8);
+	if (!samples)
+		ksft_exit_fail_msg("Out of memory\n");
+	snd_pcm_format_set_silence(format, samples, rate * channels);
+
+	sprintf(name, "hw:%d,%d,%d", data->card, data->device, data->subdevice);
+	err = snd_pcm_open(&handle, name, data->stream, 0);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "Failed to get pcm handle: %s", snd_strerror(err));
+		goto __close;
+	}
+
+	err = snd_pcm_hw_params_any(handle, hw_params);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_any: %s", snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_hw_params_set_rate_resample(handle, hw_params, 0);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_rate_resample: %s", snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_hw_params_set_access(handle, hw_params, access);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_access %s: %s",
+					   snd_pcm_access_name(access), snd_strerror(err));
+		goto __close;
+	}
+	i = -1;
+__format:
+	err = snd_pcm_hw_params_set_format(handle, hw_params, format);
+	if (err < 0) {
+		i++;
+		if (i < ARRAY_SIZE(alt_formats) && alt_formats[i]) {
+			old_format = format;
+			format = snd_pcm_format_value(alt_formats[i]);
+			if (format != SND_PCM_FORMAT_UNKNOWN) {
+				ksft_print_msg("%s.%s.%d.%d.%s.%s format %s -> %s\n",
+						 test_name,
+						 data->card_name, data->device, data->subdevice,
+						 snd_pcm_stream_name(data->stream),
+						 snd_pcm_access_name(access),
+						 snd_pcm_format_name(old_format),
+						 snd_pcm_format_name(format));
+				samples = realloc(samples, (rate * channels *
+							    snd_pcm_format_physical_width(format)) / 8);
+				if (!samples)
+					ksft_exit_fail_msg("Out of memory\n");
+				snd_pcm_format_set_silence(format, samples, rate * channels);
+				goto __format;
+			}
+		}
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_format %s: %s",
+					   snd_pcm_format_name(format), snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_hw_params_set_channels(handle, hw_params, channels);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_channels %ld: %s", channels, snd_strerror(err));
+		goto __close;
+	}
+	rrate = rate;
+	err = snd_pcm_hw_params_set_rate_near(handle, hw_params, &rrate, 0);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_rate %ld: %s", rate, snd_strerror(err));
+		goto __close;
+	}
+	if (rrate != rate) {
+		snprintf(msg, sizeof(msg), "rate mismatch %ld != %u", rate, rrate);
+		goto __close;
+	}
+	rperiod_size = period_size;
+	err = snd_pcm_hw_params_set_period_size_near(handle, hw_params, &rperiod_size, 0);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_period_size %ld: %s", period_size, snd_strerror(err));
+		goto __close;
+	}
+	rbuffer_size = buffer_size;
+	err = snd_pcm_hw_params_set_buffer_size_near(handle, hw_params, &rbuffer_size);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params_set_buffer_size %ld: %s", buffer_size, snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_hw_params(handle, hw_params);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_hw_params: %s", snd_strerror(err));
+		goto __close;
+	}
+
+	err = snd_pcm_sw_params_current(handle, sw_params);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_sw_params_current: %s", snd_strerror(err));
+		goto __close;
+	}
+	if (data->stream == SND_PCM_STREAM_PLAYBACK) {
+		start_threshold = (rbuffer_size / rperiod_size) * rperiod_size;
+	} else {
+		start_threshold = rperiod_size;
+	}
+	err = snd_pcm_sw_params_set_start_threshold(handle, sw_params, start_threshold);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_sw_params_set_start_threshold %ld: %s", (long)start_threshold, snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_sw_params_set_avail_min(handle, sw_params, rperiod_size);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_sw_params_set_avail_min %ld: %s", (long)rperiod_size, snd_strerror(err));
+		goto __close;
+	}
+	err = snd_pcm_sw_params(handle, sw_params);
+	if (err < 0) {
+		snprintf(msg, sizeof(msg), "snd_pcm_sw_params: %s", snd_strerror(err));
+		goto __close;
+	}
+
+	ksft_print_msg("%s.%s.%s.%d.%d.%s hw_params.%s.%s.%ld.%ld.%ld.%ld sw_params.%ld\n",
+		         test_class_name, test_name,
+			 data->card_name, data->device, data->subdevice,
+			 snd_pcm_stream_name(data->stream),
+			 snd_pcm_access_name(access),
+			 snd_pcm_format_name(format),
+			 (long)rate, (long)channels,
+			 (long)rperiod_size, (long)rbuffer_size,
+			 (long)start_threshold);
+
+	/* Set all the params, actually run the test */
+	skip = false;
+
+	timestamp_now(&tstamp);
+	for (i = 0; i < duration_s; i++) {
+		if (data->stream == SND_PCM_STREAM_PLAYBACK) {
+			frames = snd_pcm_writei(handle, samples, rate);
+			if (frames < 0) {
+				snprintf(msg, sizeof(msg),
+					 "Write failed: expected %ld, wrote %li", rate, frames);
+				goto __close;
+			}
+			if (frames < rate) {
+				snprintf(msg, sizeof(msg),
+					 "expected %ld, wrote %li", rate, frames);
+				goto __close;
+			}
+		} else {
+			frames = snd_pcm_readi(handle, samples, rate);
+			if (frames < 0) {
+				snprintf(msg, sizeof(msg),
+					 "expected %ld, wrote %li", rate, frames);
+				goto __close;
+			}
+			if (frames < rate) {
+				snprintf(msg, sizeof(msg),
+					 "expected %ld, wrote %li", rate, frames);
+				goto __close;
+			}
+		}
+	}
+
+	snd_pcm_drain(handle);
+	ms = timestamp_diff_ms(&tstamp);
+	if (ms < duration_ms - margin_ms || ms > duration_ms + margin_ms) {
+		snprintf(msg, sizeof(msg), "time mismatch: expected %dms got %lld", duration_ms, ms);
+		goto __close;
+	}
+
+	msg[0] = '\0';
+	pass = true;
+__close:
+	pthread_mutex_lock(&results_lock);
+
+	switch (class) {
+	case TEST_CLASS_SYSTEM:
+		test_class_name = "system";
+		/*
+		 * Anything specified as specific to this system
+		 * should always be supported.
+		 */
+		ksft_test_result(!skip, "%s.%s.%s.%d.%d.%s.params\n",
+				 test_class_name, test_name,
+				 data->card_name, data->device,
+				 data->subdevice,
+				 snd_pcm_stream_name(data->stream));
+		break;
+	default:
+		break;
+	}
+
+	if (!skip)
+		ksft_test_result(pass, "%s.%s.%s.%d.%d.%s\n",
+				 test_class_name, test_name,
+				 data->card_name, data->device,
+				 data->subdevice,
+				 snd_pcm_stream_name(data->stream));
+	else
+		ksft_test_result_skip("%s.%s.%s.%d.%d.%s\n",
+				 test_class_name, test_name,
+				 data->card_name, data->device,
+				 data->subdevice,
+				 snd_pcm_stream_name(data->stream));
+
+	if (msg[0])
+		ksft_print_msg("%s\n", msg);
+
+	pthread_mutex_unlock(&results_lock);
+
+	free(samples);
+	if (handle)
+		snd_pcm_close(handle);
+}
+
+void run_time_tests(struct pcm_data *pcm, enum test_class class,
+		    snd_config_t *cfg)
+{
+	const char *test_name, *test_type;
+	snd_config_t *pcm_cfg;
+	snd_config_iterator_t i, next;
+
+	if (!cfg)
+		return;
+
+	cfg = conf_get_subtree(cfg, "test", NULL);
+	if (cfg == NULL)
+		return;
+
+	snd_config_for_each(i, next, cfg) {
+		pcm_cfg = snd_config_iterator_entry(i);
+		if (snd_config_get_id(pcm_cfg, &test_name) < 0)
+			ksft_exit_fail_msg("snd_config_get_id\n");
+		test_type = conf_get_string(pcm_cfg, "type", NULL, "time");
+		if (strcmp(test_type, "time") == 0)
+			test_pcm_time(pcm, class, test_name, pcm_cfg);
+		else
+			ksft_exit_fail_msg("unknown test type '%s'\n", test_type);
+	}
+}
+
+void *card_thread(void *data)
+{
+	struct card_data *card = data;
+	struct pcm_data *pcm;
+
+	for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
+		if (pcm->card != card->card)
+			continue;
+
+		run_time_tests(pcm, TEST_CLASS_DEFAULT, default_pcm_config);
+		run_time_tests(pcm, TEST_CLASS_SYSTEM, pcm->pcm_config);
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	struct card_data *card;
+	struct card_cfg_data *conf;
+	struct pcm_data *pcm;
+	snd_config_t *global_config, *cfg;
+	int num_pcm_tests = 0, num_tests, num_std_pcm_tests;
+	int ret;
+	void *thread_ret;
+
+	ksft_print_header();
+
+	global_config = conf_load_from_file("pcm-test.conf");
+	default_pcm_config = conf_get_subtree(global_config, "pcm", NULL);
+	if (default_pcm_config == NULL)
+		ksft_exit_fail_msg("default pcm test configuration (pcm compound) is missing\n");
+
+	conf_load();
+
+	find_pcms();
+
+	for (conf = conf_cards; conf; conf = conf->next)
+		if (conf->card < 0)
+			num_missing++;
+
+	num_std_pcm_tests = conf_get_count(default_pcm_config, "test", NULL);
+
+	for (pcm = pcm_list; pcm != NULL; pcm = pcm->next) {
+		num_pcm_tests += num_std_pcm_tests;
+		cfg = pcm->pcm_config;
+		if (cfg == NULL)
+			continue;
+		/* Setting params is reported as a separate test */
+		num_tests = conf_get_count(cfg, "test", NULL) * 2;
+		if (num_tests > 0)
+			num_pcm_tests += num_tests;
+	}
+
+	ksft_set_plan(num_missing + num_pcm_tests);
+
+	for (conf = conf_cards; conf; conf = conf->next)
+		if (conf->card < 0)
+			ksft_test_result_fail("test.missing.%s.%s\n",
+					      conf->filename, conf->config_id);
+
+	for (pcm = pcm_missing; pcm != NULL; pcm = pcm->next) {
+		ksft_test_result(false, "test.missing.%s.%d.%d.%s\n",
+				 pcm->card_name, pcm->device, pcm->subdevice,
+				 snd_pcm_stream_name(pcm->stream));
+	}
+
+	for (card = card_list; card != NULL; card = card->next) {
+		ret = pthread_create(&card->thread, NULL, card_thread, card);
+		if (ret != 0) {
+			ksft_exit_fail_msg("Failed to create card %d thread: %d (%s)\n",
+					   card->card, ret,
+					   strerror(errno));
+		}
+	}
+
+	for (card = card_list; card != NULL; card = card->next) {
+		ret = pthread_join(card->thread, &thread_ret);
+		if (ret != 0) {
+			ksft_exit_fail_msg("Failed to join card %d thread: %d (%s)\n",
+					   card->card, ret,
+					   strerror(errno));
+		}
+	}
+
+	snd_config_delete(global_config);
+	conf_free();
+
+	ksft_exit_pass();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/alsa/pcm-test.conf b/tools/testing/selftests/alsa/pcm-test.conf
new file mode 100644
index 000000000000..71bd3f78a6f2
--- /dev/null
+++ b/tools/testing/selftests/alsa/pcm-test.conf
@@ -0,0 +1,63 @@
+pcm.test.time1 {
+	description "8kHz mono large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 8000
+	channels 1
+	period_size 8000
+	buffer_size 32000
+}
+pcm.test.time2 {
+	description "8kHz stereo large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 8000
+	channels 2
+	period_size 8000
+	buffer_size 32000
+}
+pcm.test.time3 {
+	description "44.1kHz stereo large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 44100
+	channels 2
+	period_size 22500
+	buffer_size 192000
+}
+pcm.test.time4 {
+	description "48kHz stereo small periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 48000
+	channels 2
+	period_size 512
+	buffer_size 4096
+}
+pcm.test.time5 {
+	description "48kHz stereo large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 48000
+	channels 2
+	period_size 24000
+	buffer_size 192000
+}
+pcm.test.time6 {
+	description "48kHz 6 channel large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 48000
+	channels 2
+	period_size 48000
+	buffer_size 576000
+}
+pcm.test.time7 {
+	description "96kHz stereo large periods"
+	format S16_LE
+	alt_formats [ S32_LE ]
+	rate 96000
+	channels 2
+	period_size 48000
+	buffer_size 192000
+}
diff --git a/tools/testing/selftests/alsa/test-pcmtest-driver.c b/tools/testing/selftests/alsa/test-pcmtest-driver.c
new file mode 100644
index 000000000000..95065ef3b441
--- /dev/null
+++ b/tools/testing/selftests/alsa/test-pcmtest-driver.c
@@ -0,0 +1,330 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This is the test which covers PCM middle layer data transferring using
+ * the virtual pcm test driver (snd-pcmtest).
+ *
+ * Copyright 2023 Ivan Orlov <ivan.orlov0322@gmail.com>
+ */
+#include <string.h>
+#include <alsa/asoundlib.h>
+#include "kselftest_harness.h"
+
+#define CH_NUM 4
+
+struct pattern_buf {
+	char buf[1024];
+	int len;
+};
+
+struct pattern_buf patterns[CH_NUM];
+
+struct pcmtest_test_params {
+	unsigned long buffer_size;
+	unsigned long period_size;
+	unsigned long channels;
+	unsigned int rate;
+	snd_pcm_access_t access;
+	size_t sec_buf_len;
+	size_t sample_size;
+	int time;
+	snd_pcm_format_t format;
+};
+
+static int read_patterns(void)
+{
+	FILE *fp, *fpl;
+	int i;
+	char pf[64];
+	char plf[64];
+
+	for (i = 0; i < CH_NUM; i++) {
+		sprintf(plf, "/sys/kernel/debug/pcmtest/fill_pattern%d_len", i);
+		fpl = fopen(plf, "r");
+		if (!fpl)
+			return -1;
+		fscanf(fpl, "%u", &patterns[i].len);
+		fclose(fpl);
+
+		sprintf(pf, "/sys/kernel/debug/pcmtest/fill_pattern%d", i);
+		fp = fopen(pf, "r");
+		if (!fp)
+			return -1;
+		fread(patterns[i].buf, 1, patterns[i].len, fp);
+		fclose(fp);
+	}
+
+	return 0;
+}
+
+static int get_test_results(char *debug_name)
+{
+	int result;
+	FILE *f;
+	char fname[128];
+
+	sprintf(fname, "/sys/kernel/debug/pcmtest/%s", debug_name);
+
+	f = fopen(fname, "r");
+	if (!f) {
+		printf("Failed to open file\n");
+		return -1;
+	}
+	fscanf(f, "%d", &result);
+	fclose(f);
+
+	return result;
+}
+
+static size_t get_sec_buf_len(unsigned int rate, unsigned long channels, snd_pcm_format_t format)
+{
+	return rate * channels * snd_pcm_format_physical_width(format) / 8;
+}
+
+static int setup_handle(snd_pcm_t **handle, snd_pcm_sw_params_t *swparams,
+			snd_pcm_hw_params_t *hwparams, struct pcmtest_test_params *params,
+			int card, snd_pcm_stream_t stream)
+{
+	char pcm_name[32];
+	int err;
+
+	sprintf(pcm_name, "hw:%d,0,0", card);
+	err = snd_pcm_open(handle, pcm_name, stream, 0);
+	if (err < 0)
+		return err;
+	snd_pcm_hw_params_any(*handle, hwparams);
+	snd_pcm_hw_params_set_rate_resample(*handle, hwparams, 0);
+	snd_pcm_hw_params_set_access(*handle, hwparams, params->access);
+	snd_pcm_hw_params_set_format(*handle, hwparams, params->format);
+	snd_pcm_hw_params_set_channels(*handle, hwparams, params->channels);
+	snd_pcm_hw_params_set_rate_near(*handle, hwparams, &params->rate, 0);
+	snd_pcm_hw_params_set_period_size_near(*handle, hwparams, &params->period_size, 0);
+	snd_pcm_hw_params_set_buffer_size_near(*handle, hwparams, &params->buffer_size);
+	snd_pcm_hw_params(*handle, hwparams);
+	snd_pcm_sw_params_current(*handle, swparams);
+
+	snd_pcm_hw_params_set_rate_resample(*handle, hwparams, 0);
+	snd_pcm_sw_params_set_avail_min(*handle, swparams, params->period_size);
+	snd_pcm_hw_params_set_buffer_size_near(*handle, hwparams, &params->buffer_size);
+	snd_pcm_hw_params_set_period_size_near(*handle, hwparams, &params->period_size, 0);
+	snd_pcm_sw_params(*handle, swparams);
+	snd_pcm_hw_params(*handle, hwparams);
+
+	return 0;
+}
+
+FIXTURE(pcmtest) {
+	int card;
+	snd_pcm_sw_params_t *swparams;
+	snd_pcm_hw_params_t *hwparams;
+	struct pcmtest_test_params params;
+};
+
+FIXTURE_TEARDOWN(pcmtest) {
+}
+
+FIXTURE_SETUP(pcmtest) {
+	char *card_name;
+	int err;
+
+	if (geteuid())
+		SKIP(return, "This test needs root to run!");
+
+	err = read_patterns();
+	if (err)
+		SKIP(return, "Can't read patterns. Probably, module isn't loaded");
+
+	card_name = malloc(127);
+	ASSERT_NE(card_name, NULL);
+	self->params.buffer_size = 16384;
+	self->params.period_size = 4096;
+	self->params.channels = CH_NUM;
+	self->params.rate = 8000;
+	self->params.access = SND_PCM_ACCESS_RW_INTERLEAVED;
+	self->params.format = SND_PCM_FORMAT_S16_LE;
+	self->card = -1;
+	self->params.sample_size = snd_pcm_format_physical_width(self->params.format) / 8;
+
+	self->params.sec_buf_len = get_sec_buf_len(self->params.rate, self->params.channels,
+						   self->params.format);
+	self->params.time = 4;
+
+	while (snd_card_next(&self->card) >= 0) {
+		if (self->card == -1)
+			break;
+		snd_card_get_name(self->card, &card_name);
+		if (!strcmp(card_name, "PCM-Test"))
+			break;
+	}
+	free(card_name);
+	ASSERT_NE(self->card, -1);
+}
+
+/*
+ * Here we are trying to send the looped monotonically increasing sequence of bytes to the driver.
+ * If our data isn't corrupted, the driver will set the content of 'pc_test' debugfs file to '1'
+ */
+TEST_F(pcmtest, playback) {
+	snd_pcm_t *handle;
+	unsigned char *it;
+	size_t write_res;
+	int test_results;
+	int i, cur_ch, pos_in_ch;
+	void *samples;
+	struct pcmtest_test_params *params = &self->params;
+
+	samples = calloc(self->params.sec_buf_len * self->params.time, 1);
+	ASSERT_NE(samples, NULL);
+
+	snd_pcm_sw_params_alloca(&self->swparams);
+	snd_pcm_hw_params_alloca(&self->hwparams);
+
+	ASSERT_EQ(setup_handle(&handle, self->swparams, self->hwparams, params,
+			       self->card, SND_PCM_STREAM_PLAYBACK), 0);
+	snd_pcm_format_set_silence(params->format, samples,
+				   params->rate * params->channels * params->time);
+	it = samples;
+	for (i = 0; i < self->params.sec_buf_len * params->time; i++) {
+		cur_ch = (i / params->sample_size) % CH_NUM;
+		pos_in_ch = i / params->sample_size / CH_NUM * params->sample_size
+			    + (i % params->sample_size);
+		it[i] = patterns[cur_ch].buf[pos_in_ch % patterns[cur_ch].len];
+	}
+	write_res = snd_pcm_writei(handle, samples, params->rate * params->time);
+	ASSERT_GE(write_res, 0);
+
+	snd_pcm_close(handle);
+	free(samples);
+	test_results = get_test_results("pc_test");
+	ASSERT_EQ(test_results, 1);
+}
+
+/*
+ * Here we test that the virtual alsa driver returns looped and monotonically increasing sequence
+ * of bytes. In the interleaved mode the buffer will contain samples in the following order:
+ * C0, C1, C2, C3, C0, C1, ...
+ */
+TEST_F(pcmtest, capture) {
+	snd_pcm_t *handle;
+	unsigned char *it;
+	size_t read_res;
+	int i, cur_ch, pos_in_ch;
+	void *samples;
+	struct pcmtest_test_params *params = &self->params;
+
+	samples = calloc(self->params.sec_buf_len * self->params.time, 1);
+	ASSERT_NE(samples, NULL);
+
+	snd_pcm_sw_params_alloca(&self->swparams);
+	snd_pcm_hw_params_alloca(&self->hwparams);
+
+	ASSERT_EQ(setup_handle(&handle, self->swparams, self->hwparams,
+			       params, self->card, SND_PCM_STREAM_CAPTURE), 0);
+	snd_pcm_format_set_silence(params->format, samples,
+				   params->rate * params->channels * params->time);
+	read_res = snd_pcm_readi(handle, samples, params->rate * params->time);
+	ASSERT_GE(read_res, 0);
+	snd_pcm_close(handle);
+	it = (unsigned char *)samples;
+	for (i = 0; i < self->params.sec_buf_len * self->params.time; i++) {
+		cur_ch = (i / params->sample_size) % CH_NUM;
+		pos_in_ch = i / params->sample_size / CH_NUM * params->sample_size
+			    + (i % params->sample_size);
+		ASSERT_EQ(it[i], patterns[cur_ch].buf[pos_in_ch % patterns[cur_ch].len]);
+	}
+	free(samples);
+}
+
+// Test capture in the non-interleaved access mode. The are buffers for each recorded channel
+TEST_F(pcmtest, ni_capture) {
+	snd_pcm_t *handle;
+	struct pcmtest_test_params params = self->params;
+	char **chan_samples;
+	size_t i, j, read_res;
+
+	chan_samples = calloc(CH_NUM, sizeof(*chan_samples));
+	ASSERT_NE(chan_samples, NULL);
+
+	snd_pcm_sw_params_alloca(&self->swparams);
+	snd_pcm_hw_params_alloca(&self->hwparams);
+
+	params.access = SND_PCM_ACCESS_RW_NONINTERLEAVED;
+
+	ASSERT_EQ(setup_handle(&handle, self->swparams, self->hwparams,
+			       &params, self->card, SND_PCM_STREAM_CAPTURE), 0);
+
+	for (i = 0; i < CH_NUM; i++)
+		chan_samples[i] = calloc(params.sec_buf_len * params.time, 1);
+
+	for (i = 0; i < 1; i++) {
+		read_res = snd_pcm_readn(handle, (void **)chan_samples, params.rate * params.time);
+		ASSERT_GE(read_res, 0);
+	}
+	snd_pcm_close(handle);
+
+	for (i = 0; i < CH_NUM; i++) {
+		for (j = 0; j < params.rate * params.time; j++)
+			ASSERT_EQ(chan_samples[i][j], patterns[i].buf[j % patterns[i].len]);
+		free(chan_samples[i]);
+	}
+	free(chan_samples);
+}
+
+TEST_F(pcmtest, ni_playback) {
+	snd_pcm_t *handle;
+	struct pcmtest_test_params params = self->params;
+	char **chan_samples;
+	size_t i, j, read_res;
+	int test_res;
+
+	chan_samples = calloc(CH_NUM, sizeof(*chan_samples));
+	ASSERT_NE(chan_samples, NULL);
+
+	snd_pcm_sw_params_alloca(&self->swparams);
+	snd_pcm_hw_params_alloca(&self->hwparams);
+
+	params.access = SND_PCM_ACCESS_RW_NONINTERLEAVED;
+
+	ASSERT_EQ(setup_handle(&handle, self->swparams, self->hwparams,
+			       &params, self->card, SND_PCM_STREAM_PLAYBACK), 0);
+
+	for (i = 0; i < CH_NUM; i++) {
+		chan_samples[i] = calloc(params.sec_buf_len * params.time, 1);
+		for (j = 0; j < params.sec_buf_len * params.time; j++)
+			chan_samples[i][j] = patterns[i].buf[j % patterns[i].len];
+	}
+
+	for (i = 0; i < 1; i++) {
+		read_res = snd_pcm_writen(handle, (void **)chan_samples, params.rate * params.time);
+		ASSERT_GE(read_res, 0);
+	}
+
+	snd_pcm_close(handle);
+	test_res = get_test_results("pc_test");
+	ASSERT_EQ(test_res, 1);
+
+	for (i = 0; i < CH_NUM; i++)
+		free(chan_samples[i]);
+	free(chan_samples);
+}
+
+/*
+ * Here we are testing the custom ioctl definition inside the virtual driver. If it triggers
+ * successfully, the driver sets the content of 'ioctl_test' debugfs file to '1'.
+ */
+TEST_F(pcmtest, reset_ioctl) {
+	snd_pcm_t *handle;
+	int test_res;
+	struct pcmtest_test_params *params = &self->params;
+
+	snd_pcm_sw_params_alloca(&self->swparams);
+	snd_pcm_hw_params_alloca(&self->hwparams);
+
+	ASSERT_EQ(setup_handle(&handle, self->swparams, self->hwparams, params,
+			       self->card, SND_PCM_STREAM_CAPTURE), 0);
+	snd_pcm_reset(handle);
+	test_res = get_test_results("ioctl_test");
+	ASSERT_EQ(test_res, 1);
+	snd_pcm_close(handle);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/alsa/utimer-test.c b/tools/testing/selftests/alsa/utimer-test.c
new file mode 100644
index 000000000000..c45cb226bd8f
--- /dev/null
+++ b/tools/testing/selftests/alsa/utimer-test.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This test covers the functionality of userspace-driven ALSA timers. Such timers
+ * are purely virtual (so they don't directly depend on the hardware), and they could be
+ * created and triggered by userspace applications.
+ *
+ * Author: Ivan Orlov <ivan.orlov0322@gmail.com>
+ */
+#include "kselftest_harness.h"
+#include <sound/asound.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <string.h>
+
+#define FRAME_RATE 8000
+#define PERIOD_SIZE 4410
+#define UTIMER_DEFAULT_ID -1
+#define UTIMER_DEFAULT_FD -1
+#define NANO 1000000000ULL
+#define TICKS_COUNT 10
+#define TICKS_RECORDING_DELTA 5
+#define TIMER_OUTPUT_BUF_LEN 1024
+#define TIMER_FREQ_SEC 1
+#define RESULT_PREFIX_LEN strlen("Total ticks count: ")
+
+enum timer_app_event {
+	TIMER_APP_STARTED,
+	TIMER_APP_RESULT,
+	TIMER_NO_EVENT,
+};
+
+FIXTURE(timer_f) {
+	struct snd_timer_uinfo *utimer_info;
+};
+
+FIXTURE_SETUP(timer_f) {
+	int timer_dev_fd;
+
+	if (geteuid())
+		SKIP(return, "This test needs root to run!");
+
+	self->utimer_info = calloc(1, sizeof(*self->utimer_info));
+	ASSERT_NE(NULL, self->utimer_info);
+
+	/* Resolution is the time the period of frames takes in nanoseconds */
+	self->utimer_info->resolution = (NANO / FRAME_RATE * PERIOD_SIZE);
+
+	timer_dev_fd = open("/dev/snd/timer", O_RDONLY);
+	ASSERT_GE(timer_dev_fd, 0);
+
+	ASSERT_EQ(ioctl(timer_dev_fd, SNDRV_TIMER_IOCTL_CREATE, self->utimer_info), 0);
+	ASSERT_GE(self->utimer_info->fd, 0);
+
+	close(timer_dev_fd);
+}
+
+FIXTURE_TEARDOWN(timer_f) {
+	close(self->utimer_info->fd);
+	free(self->utimer_info);
+}
+
+static void *ticking_func(void *data)
+{
+	int i;
+	int *fd = (int *)data;
+
+	for (i = 0; i < TICKS_COUNT; i++) {
+		/* Well, trigger the timer! */
+		ioctl(*fd, SNDRV_TIMER_IOCTL_TRIGGER, NULL);
+		sleep(TIMER_FREQ_SEC);
+	}
+
+	return NULL;
+}
+
+static enum timer_app_event parse_timer_output(const char *s)
+{
+	if (strstr(s, "Timer has started"))
+		return TIMER_APP_STARTED;
+	if (strstr(s, "Total ticks count"))
+		return TIMER_APP_RESULT;
+
+	return TIMER_NO_EVENT;
+}
+
+static int parse_timer_result(const char *s)
+{
+	char *end;
+	long d;
+
+	d = strtol(s + RESULT_PREFIX_LEN, &end, 10);
+	if (end == s + RESULT_PREFIX_LEN)
+		return -1;
+
+	return d;
+}
+
+/*
+ * This test triggers the timer and counts ticks at the same time. The amount
+ * of the timer trigger calls should be equal to the amount of ticks received.
+ */
+TEST_F(timer_f, utimer) {
+	char command[64];
+	pthread_t ticking_thread;
+	int total_ticks = 0;
+	FILE *rfp;
+	char *buf = malloc(TIMER_OUTPUT_BUF_LEN);
+
+	ASSERT_NE(buf, NULL);
+
+	/* The timeout should be the ticks interval * count of ticks + some delta */
+	sprintf(command, "./global-timer %d %d %d", SNDRV_TIMER_GLOBAL_UDRIVEN,
+		self->utimer_info->id, TICKS_COUNT * TIMER_FREQ_SEC + TICKS_RECORDING_DELTA);
+
+	rfp = popen(command, "r");
+	while (fgets(buf, TIMER_OUTPUT_BUF_LEN, rfp)) {
+		buf[TIMER_OUTPUT_BUF_LEN - 1] = 0;
+		switch (parse_timer_output(buf)) {
+		case TIMER_APP_STARTED:
+			/* global-timer waits for timer to trigger, so start the ticking thread */
+			pthread_create(&ticking_thread, NULL, ticking_func,
+				       &self->utimer_info->fd);
+			break;
+		case TIMER_APP_RESULT:
+			total_ticks = parse_timer_result(buf);
+			break;
+		case TIMER_NO_EVENT:
+			break;
+		}
+	}
+	pthread_join(ticking_thread, NULL);
+	ASSERT_EQ(total_ticks, TICKS_COUNT);
+	pclose(rfp);
+	free(buf);
+}
+
+TEST(wrong_timers_test) {
+	int timer_dev_fd;
+	int utimer_fd;
+	size_t i;
+	struct snd_timer_uinfo wrong_timer = {
+		.resolution = 0,
+		.id = UTIMER_DEFAULT_ID,
+		.fd = UTIMER_DEFAULT_FD,
+	};
+
+	timer_dev_fd = open("/dev/snd/timer", O_RDONLY);
+	ASSERT_GE(timer_dev_fd, 0);
+
+	utimer_fd = ioctl(timer_dev_fd, SNDRV_TIMER_IOCTL_CREATE, &wrong_timer);
+	ASSERT_LT(utimer_fd, 0);
+	/* Check that id was not updated */
+	ASSERT_EQ(wrong_timer.id, UTIMER_DEFAULT_ID);
+
+	/* Test the NULL as an argument is processed correctly */
+	ASSERT_LT(ioctl(timer_dev_fd, SNDRV_TIMER_IOCTL_CREATE, NULL), 0);
+
+	close(timer_dev_fd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/amd-pstate/Makefile b/tools/testing/selftests/amd-pstate/Makefile
new file mode 100644
index 000000000000..c382f579fe94
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for amd-pstate/ function selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+ARCH := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq (x86,$(ARCH))
+TEST_FILES += ../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
+TEST_FILES += ../../../power/x86/intel_pstate_tracer/intel_pstate_tracer.py
+endif
+
+TEST_PROGS += run.sh
+TEST_FILES += basic.sh tbench.sh gitsource.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/amd-pstate/basic.sh b/tools/testing/selftests/amd-pstate/basic.sh
new file mode 100755
index 000000000000..e4c43193e4a3
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/basic.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# amd-pstate-ut is a test module for testing the amd-pstate driver.
+# It can only run on x86 architectures and current cpufreq driver
+# must be amd-pstate.
+# (1) It can help all users to verify their processor support
+# (SBIOS/Firmware or Hardware).
+# (2) Kernel can have a basic function test to avoid the kernel
+# regression during the update.
+# (3) We can introduce more functional or performance tests to align
+# the result together, it will benefit power and performance scale optimization.
+
+# protect against multiple inclusion
+if [ $FILE_BASIC ]; then
+	return 0
+else
+	FILE_BASIC=DONE
+fi
+
+amd_pstate_basic()
+{
+	printf "\n---------------------------------------------\n"
+	printf "*** Running AMD P-state ut                ***"
+	printf "\n---------------------------------------------\n"
+
+	if ! /sbin/modprobe -q -n amd-pstate-ut; then
+		echo "amd-pstate-ut: module amd-pstate-ut is not found [SKIP]"
+		exit $ksft_skip
+	fi
+	if /sbin/modprobe -q amd-pstate-ut; then
+		/sbin/modprobe -q -r amd-pstate-ut
+		echo "amd-pstate-basic: ok"
+	else
+		echo "amd-pstate-basic: [FAIL]"
+		exit 1
+	fi
+}
diff --git a/tools/testing/selftests/amd-pstate/config b/tools/testing/selftests/amd-pstate/config
new file mode 100644
index 000000000000..f43103c9adc4
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/config
@@ -0,0 +1 @@
+CONFIG_X86_AMD_PSTATE_UT=m
diff --git a/tools/testing/selftests/amd-pstate/gitsource.sh b/tools/testing/selftests/amd-pstate/gitsource.sh
new file mode 100755
index 000000000000..4cde62f90468
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/gitsource.sh
@@ -0,0 +1,359 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Testing and monitor the cpu desire performance, frequency, load,
+# power consumption and throughput etc. when this script trigger
+# gitsource test.
+# 1) Download and tar gitsource codes.
+# 2) Run gitsource benchmark on specific governors, ondemand or schedutil.
+# 3) Run tbench benchmark comparative test on acpi-cpufreq kernel driver.
+# 4) Get desire performance, frequency, load by perf.
+# 5) Get power consumption and throughput by amd_pstate_trace.py.
+# 6) Get run time by /usr/bin/time.
+# 7) Analyse test results and save it in file selftest.gitsource.csv.
+#8) Plot png images about time, energy and performance per watt for each test.
+
+# protect against multiple inclusion
+if [ $FILE_GITSOURCE ]; then
+	return 0
+else
+	FILE_GITSOURCE=DONE
+fi
+
+git_name="git-2.15.1"
+git_tar="$git_name.tar.gz"
+gitsource_url="https://github.com/git/git/archive/refs/tags/v2.15.1.tar.gz"
+gitsource_governors=("ondemand" "schedutil")
+
+# $1: governor, $2: round, $3: des-perf, $4: freq, $5: load, $6: time $7: energy, $8: PPW
+store_csv_gitsource()
+{
+	echo "$1, $2, $3, $4, $5, $6, $7, $8" | tee -a $OUTFILE_GIT.csv > /dev/null 2>&1
+}
+
+# clear some special lines
+clear_csv_gitsource()
+{
+	if [ -f $OUTFILE_GIT.csv ]; then
+		sed -i '/Comprison(%)/d' $OUTFILE_GIT.csv
+		sed -i "/$(scaling_name)/d" $OUTFILE_GIT.csv
+	fi
+}
+
+# find string $1 in file csv and get the number of lines
+get_lines_csv_gitsource()
+{
+	if [ -f $OUTFILE_GIT.csv ]; then
+		return `grep -c "$1" $OUTFILE_GIT.csv`
+	else
+		return 0
+	fi
+}
+
+pre_clear_gitsource()
+{
+	post_clear_gitsource
+	rm -rf gitsource_*.png
+	clear_csv_gitsource
+}
+
+post_clear_gitsource()
+{
+	rm -rf results/tracer-gitsource*
+	rm -rf $OUTFILE_GIT*.log
+	rm -rf $OUTFILE_GIT*.result
+}
+
+install_gitsource()
+{
+	if [ ! -d $SCRIPTDIR/$git_name ]; then
+		pushd $(pwd) > /dev/null 2>&1
+		cd $SCRIPTDIR
+		printf "Download gitsource, please wait a moment ...\n\n"
+		wget -O $git_tar $gitsource_url > /dev/null 2>&1
+
+		printf "Tar gitsource ...\n\n"
+		tar -xzf $git_tar
+		popd > /dev/null 2>&1
+	fi
+}
+
+# $1: governor, $2: loop
+run_gitsource()
+{
+	echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
+	$TRACER -n tracer-gitsource-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+
+	printf "Make and test gitsource for $1 #$2 make_cpus: $MAKE_CPUS\n"
+	BACKUP_DIR=$(pwd)
+	pushd $BACKUP_DIR > /dev/null 2>&1
+	cd $SCRIPTDIR/$git_name
+	$PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ /usr/bin/time -o $BACKUP_DIR/$OUTFILE_GIT.time-gitsource-$1-$2.log make test -j$MAKE_CPUS > $BACKUP_DIR/$OUTFILE_GIT-perf-$1-$2.log 2>&1
+	popd > /dev/null 2>&1
+
+	for job in `jobs -p`
+	do
+		echo "Waiting for job id $job"
+		wait $job
+	done
+}
+
+# $1: governor, $2: loop
+parse_gitsource()
+{
+	awk '{print $5}' results/tracer-gitsource-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_GIT-des-perf-$1-$2.log
+	avg_des_perf=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_GIT-des-perf-$1-$2.log)
+	printf "Gitsource-$1-#$2 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_GIT.result
+
+	awk '{print $7}' results/tracer-gitsource-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_GIT-freq-$1-$2.log
+	avg_freq=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_GIT-freq-$1-$2.log)
+	printf "Gitsource-$1-#$2 avg freq: $avg_freq\n" | tee -a $OUTFILE_GIT.result
+
+	awk '{print $11}' results/tracer-gitsource-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_GIT-load-$1-$2.log
+	avg_load=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_GIT-load-$1-$2.log)
+	printf "Gitsource-$1-#$2 avg load: $avg_load\n" | tee -a $OUTFILE_GIT.result
+
+	grep user $OUTFILE_GIT.time-gitsource-$1-$2.log | awk '{print $1}' | sed -e 's/user//' > $OUTFILE_GIT-time-$1-$2.log
+	time_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_GIT-time-$1-$2.log)
+	printf "Gitsource-$1-#$2 user time(s): $time_sum\n" | tee -a $OUTFILE_GIT.result
+
+	grep Joules $OUTFILE_GIT-perf-$1-$2.log | awk '{print $4}' > $OUTFILE_GIT-energy-$1-$2.log
+	en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_GIT-energy-$1-$2.log)
+	printf "Gitsource-$1-#$2 power consumption(J): $en_sum\n" | tee -a $OUTFILE_GIT.result
+
+	# Permance is the number of run gitsource per second, denoted 1/t, where 1 is the number of run gitsource in t
+	# seconds. It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
+	# and t is time measured in seconds(s). This means that performance per watt becomes
+	#        1/t     1/t     1
+	#       ----- = ----- = ---
+	#         P      E/t     E
+	# with unit given by 1 per joule.
+	ppw=`echo "scale=9;1/$en_sum" | bc | awk '{printf "%.9f", $0}'`
+	printf "Gitsource-$1-#$2 performance per watt(1/J): $ppw\n" | tee -a $OUTFILE_GIT.result
+	printf "\n" | tee -a $OUTFILE_GIT.result
+
+	driver_name=`echo $(scaling_name)`
+	store_csv_gitsource "$driver_name-$1" $2 $avg_des_perf $avg_freq $avg_load $time_sum $en_sum $ppw
+}
+
+# $1: governor
+loop_gitsource()
+{
+	printf "\nGitsource total test times is $LOOP_TIMES for $1\n\n"
+	for i in `seq 1 $LOOP_TIMES`
+	do
+		run_gitsource $1 $i
+		parse_gitsource $1 $i
+	done
+}
+
+# $1: governor
+gather_gitsource()
+{
+	printf "Gitsource test result for $1 (loops:$LOOP_TIMES)" | tee -a $OUTFILE_GIT.result
+	printf "\n--------------------------------------------------\n" | tee -a $OUTFILE_GIT.result
+
+	grep "Gitsource-$1-#" $OUTFILE_GIT.result | grep "avg des perf:" | awk '{print $NF}' > $OUTFILE_GIT-des-perf-$1.log
+	avg_des_perf=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_GIT-des-perf-$1.log)
+	printf "Gitsource-$1 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_GIT.result
+
+	grep "Gitsource-$1-#" $OUTFILE_GIT.result | grep "avg freq:" | awk '{print $NF}' > $OUTFILE_GIT-freq-$1.log
+	avg_freq=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_GIT-freq-$1.log)
+	printf "Gitsource-$1 avg freq: $avg_freq\n" | tee -a $OUTFILE_GIT.result
+
+	grep "Gitsource-$1-#" $OUTFILE_GIT.result | grep "avg load:" | awk '{print $NF}' > $OUTFILE_GIT-load-$1.log
+	avg_load=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_GIT-load-$1.log)
+	printf "Gitsource-$1 avg load: $avg_load\n" | tee -a $OUTFILE_GIT.result
+
+	grep "Gitsource-$1-#" $OUTFILE_GIT.result | grep "user time(s):" | awk '{print $NF}' > $OUTFILE_GIT-time-$1.log
+	time_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_GIT-time-$1.log)
+	printf "Gitsource-$1 total user time(s): $time_sum\n" | tee -a $OUTFILE_GIT.result
+
+	avg_time=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_GIT-time-$1.log)
+	printf "Gitsource-$1 avg user times(s): $avg_time\n" | tee -a $OUTFILE_GIT.result
+
+	grep "Gitsource-$1-#" $OUTFILE_GIT.result | grep "power consumption(J):" | awk '{print $NF}' > $OUTFILE_GIT-energy-$1.log
+	en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_GIT-energy-$1.log)
+	printf "Gitsource-$1 total power consumption(J): $en_sum\n" | tee -a $OUTFILE_GIT.result
+
+	avg_en=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_GIT-energy-$1.log)
+	printf "Gitsource-$1 avg power consumption(J): $avg_en\n" | tee -a $OUTFILE_GIT.result
+
+	# Permance is the number of run gitsource per second, denoted 1/t, where 1 is the number of run gitsource in t
+	# seconds. It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
+	# and t is time measured in seconds(s). This means that performance per watt becomes
+	#        1/t     1/t     1
+	#       ----- = ----- = ---
+	#         P      E/t     E
+	# with unit given by 1 per joule.
+	ppw=`echo "scale=9;1/$avg_en" | bc | awk '{printf "%.9f", $0}'`
+	printf "Gitsource-$1 performance per watt(1/J): $ppw\n" | tee -a $OUTFILE_GIT.result
+	printf "\n" | tee -a $OUTFILE_GIT.result
+
+	driver_name=`echo $(scaling_name)`
+	store_csv_gitsource "$driver_name-$1" "Average" $avg_des_perf $avg_freq $avg_load $avg_time $avg_en $ppw
+}
+
+# $1: base scaling_driver $2: base governor $3: comparison scaling_driver $4: comparison governor
+__calc_comp_gitsource()
+{
+	base=`grep "$1-$2" $OUTFILE_GIT.csv | grep "Average"`
+	comp=`grep "$3-$4" $OUTFILE_GIT.csv | grep "Average"`
+
+	if [ -n "$base" -a -n "$comp" ]; then
+		printf "\n==================================================\n" | tee -a $OUTFILE_GIT.result
+		printf "Gitsource comparison $1-$2 VS $3-$4" | tee -a $OUTFILE_GIT.result
+		printf "\n==================================================\n" | tee -a $OUTFILE_GIT.result
+
+		# get the base values
+		des_perf_base=`echo "$base" | awk '{print $3}' | sed s/,//`
+		freq_base=`echo "$base" | awk '{print $4}' | sed s/,//`
+		load_base=`echo "$base" | awk '{print $5}' | sed s/,//`
+		time_base=`echo "$base" | awk '{print $6}' | sed s/,//`
+		energy_base=`echo "$base" | awk '{print $7}' | sed s/,//`
+		ppw_base=`echo "$base" | awk '{print $8}' | sed s/,//`
+
+		# get the comparison values
+		des_perf_comp=`echo "$comp" | awk '{print $3}' | sed s/,//`
+		freq_comp=`echo "$comp" | awk '{print $4}' | sed s/,//`
+		load_comp=`echo "$comp" | awk '{print $5}' | sed s/,//`
+		time_comp=`echo "$comp" | awk '{print $6}' | sed s/,//`
+		energy_comp=`echo "$comp" | awk '{print $7}' | sed s/,//`
+		ppw_comp=`echo "$comp" | awk '{print $8}' | sed s/,//`
+
+		# compare the base and comp values
+		des_perf_drop=`echo "scale=4;($des_perf_comp-$des_perf_base)*100/$des_perf_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 des perf base: $des_perf_base comprison: $des_perf_comp percent: $des_perf_drop\n" | tee -a $OUTFILE_GIT.result
+
+		freq_drop=`echo "scale=4;($freq_comp-$freq_base)*100/$freq_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 freq base: $freq_base comprison: $freq_comp percent: $freq_drop\n" | tee -a $OUTFILE_GIT.result
+
+		load_drop=`echo "scale=4;($load_comp-$load_base)*100/$load_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 load base: $load_base comprison: $load_comp percent: $load_drop\n" | tee -a $OUTFILE_GIT.result
+
+		time_drop=`echo "scale=4;($time_comp-$time_base)*100/$time_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 time base: $time_base comprison: $time_comp percent: $time_drop\n" | tee -a $OUTFILE_GIT.result
+
+		energy_drop=`echo "scale=4;($energy_comp-$energy_base)*100/$energy_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 energy base: $energy_base comprison: $energy_comp percent: $energy_drop\n" | tee -a $OUTFILE_GIT.result
+
+		ppw_drop=`echo "scale=4;($ppw_comp-$ppw_base)*100/$ppw_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Gitsource-$1 performance per watt base: $ppw_base comprison: $ppw_comp percent: $ppw_drop\n" | tee -a $OUTFILE_GIT.result
+		printf "\n" | tee -a $OUTFILE_GIT.result
+
+		store_csv_gitsource "$1-$2 VS $3-$4" "Comprison(%)" "$des_perf_drop" "$freq_drop" "$load_drop" "$time_drop" "$energy_drop" "$ppw_drop"
+	fi
+}
+
+# calculate the comparison(%)
+calc_comp_gitsource()
+{
+	# acpi-cpufreq-ondemand VS acpi-cpufreq-schedutil
+	__calc_comp_gitsource ${all_scaling_names[0]} ${gitsource_governors[0]} ${all_scaling_names[0]} ${gitsource_governors[1]}
+
+	# amd-pstate-ondemand VS amd-pstate-schedutil
+	__calc_comp_gitsource ${all_scaling_names[1]} ${gitsource_governors[0]} ${all_scaling_names[1]} ${gitsource_governors[1]}
+
+	# acpi-cpufreq-ondemand VS amd-pstate-ondemand
+	__calc_comp_gitsource ${all_scaling_names[0]} ${gitsource_governors[0]} ${all_scaling_names[1]} ${gitsource_governors[0]}
+
+	# acpi-cpufreq-schedutil VS amd-pstate-schedutil
+	__calc_comp_gitsource ${all_scaling_names[0]} ${gitsource_governors[1]} ${all_scaling_names[1]} ${gitsource_governors[1]}
+}
+
+# $1: file_name, $2: title, $3: ylable, $4: column
+plot_png_gitsource()
+{
+	# all_scaling_names[1] all_scaling_names[0] flag
+	#    amd-pstate           acpi-cpufreq
+	#         N                   N             0
+	#         N                   Y             1
+	#         Y                   N             2
+	#         Y                   Y             3
+	ret=`grep -c "${all_scaling_names[1]}" $OUTFILE_GIT.csv`
+	if [ $ret -eq 0 ]; then
+		ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_GIT.csv`
+		if [ $ret -eq 0 ]; then
+			flag=0
+		else
+			flag=1
+		fi
+	else
+		ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_GIT.csv`
+		if [ $ret -eq 0 ]; then
+			flag=2
+		else
+			flag=3
+		fi
+	fi
+
+	gnuplot << EOF
+		set term png
+		set output "$1"
+
+		set title "$2"
+		set xlabel "Test Cycles (round)"
+		set ylabel "$3"
+
+		set grid
+		set style data histogram
+		set style fill solid 0.5 border
+		set boxwidth 0.8
+
+		if ($flag == 1) {
+			plot \
+			"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${gitsource_governors[0]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${gitsource_governors[0]}", \
+			"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${gitsource_governors[1]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${gitsource_governors[1]}"
+		} else {
+			if ($flag == 2) {
+				plot \
+				"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${gitsource_governors[0]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${gitsource_governors[0]}", \
+				"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${gitsource_governors[1]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${gitsource_governors[1]}"
+			} else {
+				if ($flag == 3 ) {
+					plot \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${gitsource_governors[0]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${gitsource_governors[0]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${gitsource_governors[1]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${gitsource_governors[1]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${gitsource_governors[0]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${gitsource_governors[0]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${gitsource_governors[1]}/p' $OUTFILE_GIT.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${gitsource_governors[1]}"
+				}
+			}
+		}
+		quit
+EOF
+}
+
+amd_pstate_gitsource()
+{
+	printf "\n---------------------------------------------\n"
+	printf "*** Running gitsource                     ***"
+	printf "\n---------------------------------------------\n"
+
+	pre_clear_gitsource
+
+	install_gitsource
+
+	get_lines_csv_gitsource "Governor"
+	if [ $? -eq 0 ]; then
+		# add titles and unit for csv file
+		store_csv_gitsource "Governor" "Round" "Des-perf" "Freq" "Load" "Time" "Energy" "Performance Per Watt"
+		store_csv_gitsource "Unit" "" "" "GHz" "" "s" "J" "1/J"
+	fi
+
+	backup_governor
+	for governor in ${gitsource_governors[*]} ; do
+		printf "\nSpecified governor is $governor\n\n"
+		switch_governor $governor
+		loop_gitsource $governor
+		gather_gitsource $governor
+	done
+	restore_governor
+
+	plot_png_gitsource "gitsource_time.png" "Gitsource Benchmark Time" "Time (s)" 6
+	plot_png_gitsource "gitsource_energy.png" "Gitsource Benchmark Energy" "Energy (J)" 7
+	plot_png_gitsource "gitsource_ppw.png" "Gitsource Benchmark Performance Per Watt" "Performance Per Watt (1/J)" 8
+
+	calc_comp_gitsource
+
+	post_clear_gitsource
+}
diff --git a/tools/testing/selftests/amd-pstate/run.sh b/tools/testing/selftests/amd-pstate/run.sh
new file mode 100755
index 000000000000..b053eea8bb19
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/run.sh
@@ -0,0 +1,396 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# protect against multiple inclusion
+if [ $FILE_MAIN ]; then
+	return 0
+else
+	FILE_MAIN=DONE
+fi
+
+SCRIPTDIR=`dirname "$0"`
+TRACER=$SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
+
+source $SCRIPTDIR/basic.sh
+source $SCRIPTDIR/tbench.sh
+source $SCRIPTDIR/gitsource.sh
+
+# amd-pstate-ut only run on x86/x86_64 AMD systems.
+ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
+VENDOR=$(cat /proc/cpuinfo | grep -m 1 'vendor_id' | awk '{print $NF}')
+
+msg="Skip all tests:"
+FUNC=all
+OUTFILE=selftest
+OUTFILE_TBENCH="$OUTFILE.tbench"
+OUTFILE_GIT="$OUTFILE.gitsource"
+
+PERF=/usr/bin/perf
+SYSFS=
+CPUROOT=
+CPUFREQROOT=
+MAKE_CPUS=
+
+TIME_LIMIT=100
+PROCESS_NUM=128
+LOOP_TIMES=3
+TRACER_INTERVAL=10
+CURRENT_TEST=amd-pstate
+COMPARATIVE_TEST=
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+all_scaling_names=("acpi-cpufreq" "amd-pstate")
+
+# Get current cpufreq scaling driver name
+scaling_name()
+{
+	if [ "$COMPARATIVE_TEST" = "" ]; then
+		echo "$CURRENT_TEST"
+	else
+		echo "$COMPARATIVE_TEST"
+	fi
+}
+
+# Counts CPUs with cpufreq directories
+count_cpus()
+{
+	count=0;
+
+	for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
+		if [ -d $CPUROOT/$cpu/cpufreq ]; then
+			let count=count+1;
+		fi
+	done
+
+	echo $count;
+}
+
+# $1: policy
+find_current_governor()
+{
+	cat $CPUFREQROOT/$1/scaling_governor
+}
+
+backup_governor()
+{
+	policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+	for policy in $policies; do
+		cur_gov=$(find_current_governor $policy)
+		echo "$policy $cur_gov" >> $OUTFILE.backup_governor.log
+	done
+
+	printf "Governor $cur_gov backup done.\n"
+}
+
+restore_governor()
+{
+	i=0;
+
+	policies=$(awk '{print $1}' $OUTFILE.backup_governor.log)
+	for policy in $policies; do
+		let i++;
+		governor=$(sed -n ''$i'p' $OUTFILE.backup_governor.log | awk '{print $2}')
+
+		# switch governor
+		echo $governor > $CPUFREQROOT/$policy/scaling_governor
+	done
+
+	printf "Governor restored to $governor.\n"
+}
+
+# $1: governor
+switch_governor()
+{
+	policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+	for policy in $policies; do
+		filepath=$CPUFREQROOT/$policy/scaling_available_governors
+
+		# Exit if cpu isn't managed by cpufreq core
+		if [ ! -f $filepath ]; then
+			return;
+		fi
+
+		echo $1 > $CPUFREQROOT/$policy/scaling_governor
+	done
+
+	printf "Switched governor to $1.\n"
+}
+
+# All amd-pstate tests
+amd_pstate_all()
+{
+	printf "\n=============================================\n"
+	printf "***** Running AMD P-state Sanity Tests  *****\n"
+	printf "=============================================\n\n"
+
+	count=$(count_cpus)
+	if [ $count = 0 ]; then
+		printf "No cpu is managed by cpufreq core, exiting\n"
+		exit;
+	else
+		printf "AMD P-state manages: $count CPUs\n"
+	fi
+
+	# unit test for amd-pstate kernel driver
+	amd_pstate_basic
+
+	# tbench
+	amd_pstate_tbench
+
+	# gitsource
+	amd_pstate_gitsource
+}
+
+help()
+{
+	printf "Usage: $0 [OPTION...]
+	[-h <help>]
+	[-o <output-file-for-dump>]
+	[-c <all: All testing,
+	     basic: Basic testing,
+	     tbench: Tbench testing,
+	     gitsource: Gitsource testing.>]
+	[-t <tbench time limit>]
+	[-p <tbench process number>]
+	[-l <loop times for tbench>]
+	[-i <amd tracer interval>]
+	[-b <perf binary>]
+	[-m <comparative test: acpi-cpufreq>]
+	\n"
+	exit 2
+}
+
+parse_arguments()
+{
+	while getopts ho:c:t:p:l:i:b:m: arg
+	do
+		case $arg in
+			h) # --help
+				help
+				;;
+
+			c) # --func_type (Function to perform: basic, tbench, gitsource (default: all))
+				FUNC=$OPTARG
+				;;
+
+			o) # --output-file (Output file to store dumps)
+				OUTFILE=$OPTARG
+				;;
+
+			t) # --tbench-time-limit
+				TIME_LIMIT=$OPTARG
+				;;
+
+			p) # --tbench-process-number
+				PROCESS_NUM=$OPTARG
+				;;
+
+			l) # --tbench/gitsource-loop-times
+				LOOP_TIMES=$OPTARG
+				;;
+
+			i) # --amd-tracer-interval
+				TRACER_INTERVAL=$OPTARG
+				;;
+
+			b) # --perf-binary
+				PERF=`realpath $OPTARG`
+				;;
+
+			m) # --comparative-test
+				COMPARATIVE_TEST=$OPTARG
+				;;
+
+			*)
+				help
+				;;
+		esac
+	done
+}
+
+command_perf()
+{
+	if ! $PERF -v; then
+		echo $msg please install perf or provide perf binary path as argument >&2
+		exit $ksft_skip
+	fi
+}
+
+command_tbench()
+{
+	if ! command -v tbench > /dev/null; then
+		if apt policy dbench > /dev/null 2>&1; then
+			echo $msg apt install dbench >&2
+			exit $ksft_skip
+		elif yum list available | grep dbench > /dev/null 2>&1; then
+			echo $msg yum install dbench >&2
+			exit $ksft_skip
+		fi
+	fi
+
+	if ! command -v tbench > /dev/null; then
+		echo $msg please install tbench. >&2
+		exit $ksft_skip
+	fi
+}
+
+prerequisite()
+{
+	if ! echo "$ARCH" | grep -q x86; then
+		echo "$0 # Skipped: Test can only run on x86 architectures."
+		exit $ksft_skip
+	fi
+
+	if ! echo "$VENDOR" | grep -iq amd; then
+		echo "$0 # Skipped: Test can only run on AMD CPU."
+		echo "$0 # Current cpu vendor is $VENDOR."
+		exit $ksft_skip
+	fi
+
+	scaling_driver=$(cat /sys/devices/system/cpu/cpufreq/policy0/scaling_driver)
+	if [ "$COMPARATIVE_TEST" = "" ]; then
+		if [ "$scaling_driver" != "$CURRENT_TEST" ]; then
+			echo "$0 # Skipped: Test can only run on $CURRENT_TEST driver or run comparative test."
+			echo "$0 # Please set X86_AMD_PSTATE enabled or run comparative test."
+			echo "$0 # Current cpufreq scaling driver is $scaling_driver."
+			exit $ksft_skip
+		fi
+	else
+		case "$FUNC" in
+			"tbench" | "gitsource")
+				if [ "$scaling_driver" != "$COMPARATIVE_TEST" ]; then
+					echo "$0 # Skipped: Comparison test can only run on $COMPARISON_TEST driver."
+					echo "$0 # Current cpufreq scaling driver is $scaling_driver."
+					exit $ksft_skip
+				fi
+				;;
+
+			*)
+				echo "$0 # Skipped: Comparison test are only for tbench or gitsource."
+				echo "$0 # Current comparative test is for $FUNC."
+				exit $ksft_skip
+				;;
+		esac
+	fi
+
+	if [ ! -w /dev ]; then
+		echo $msg please run this as root >&2
+		exit $ksft_skip
+	fi
+
+	case "$FUNC" in
+		"all")
+			command_perf
+			command_tbench
+			;;
+
+		"tbench")
+			command_perf
+			command_tbench
+			;;
+
+		"gitsource")
+			command_perf
+			;;
+	esac
+
+	SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+	if [ ! -d "$SYSFS" ]; then
+		echo $msg sysfs is not mounted >&2
+		exit 2
+	fi
+
+	CPUROOT=$SYSFS/devices/system/cpu
+	CPUFREQROOT="$CPUROOT/cpufreq"
+
+	if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
+		echo $msg cpus not available in sysfs >&2
+		exit 2
+	fi
+
+	if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
+		echo $msg cpufreq directory not available in sysfs >&2
+		exit 2
+	fi
+}
+
+do_test()
+{
+	# Check if CPUs are managed by cpufreq or not
+	count=$(count_cpus)
+	MAKE_CPUS=$((count*2))
+
+	if [ $count = 0 ]; then
+		echo "No cpu is managed by cpufreq core, exiting"
+		exit 2;
+	fi
+
+	case "$FUNC" in
+		"all")
+			amd_pstate_all
+			;;
+
+		"basic")
+			amd_pstate_basic
+			;;
+
+		"tbench")
+			amd_pstate_tbench
+			;;
+
+		"gitsource")
+			amd_pstate_gitsource
+			;;
+
+		*)
+			echo "Invalid [-f] function type"
+			help
+			;;
+	esac
+}
+
+# clear dumps
+pre_clear_dumps()
+{
+	case "$FUNC" in
+		"all")
+			rm -rf $OUTFILE.log
+			rm -rf $OUTFILE.backup_governor.log
+			rm -rf *.png
+			;;
+
+		"tbench")
+			rm -rf $OUTFILE.log
+			rm -rf $OUTFILE.backup_governor.log
+			rm -rf tbench_*.png
+			;;
+
+		"gitsource")
+			rm -rf $OUTFILE.log
+			rm -rf $OUTFILE.backup_governor.log
+			rm -rf gitsource_*.png
+			;;
+
+		*)
+			;;
+	esac
+}
+
+post_clear_dumps()
+{
+	rm -rf $OUTFILE.log
+	rm -rf $OUTFILE.backup_governor.log
+}
+
+# Parse arguments
+parse_arguments $@
+
+# Make sure all requirements are met
+prerequisite
+
+# Run requested functions
+pre_clear_dumps
+do_test | tee -a $OUTFILE.log
+post_clear_dumps
diff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh
new file mode 100755
index 000000000000..2a98d9c9202e
--- /dev/null
+++ b/tools/testing/selftests/amd-pstate/tbench.sh
@@ -0,0 +1,339 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Testing and monitor the cpu desire performance, frequency, load,
+# power consumption and throughput etc.when this script trigger tbench
+# test cases.
+# 1) Run tbench benchmark on specific governors, ondemand or schedutil.
+# 2) Run tbench benchmark comparative test on acpi-cpufreq kernel driver.
+# 3) Get desire performance, frequency, load by perf.
+# 4) Get power consumption and throughput by amd_pstate_trace.py.
+# 5) Analyse test results and save it in file selftest.tbench.csv.
+# 6) Plot png images about performance, energy and performance per watt for each test.
+
+# protect against multiple inclusion
+if [ $FILE_TBENCH ]; then
+	return 0
+else
+	FILE_TBENCH=DONE
+fi
+
+tbench_governors=("ondemand" "schedutil")
+
+# $1: governor, $2: round, $3: des-perf, $4: freq, $5: load, $6: performance, $7: energy, $8: performance per watt
+store_csv_tbench()
+{
+	echo "$1, $2, $3, $4, $5, $6, $7, $8" | tee -a $OUTFILE_TBENCH.csv > /dev/null 2>&1
+}
+
+# clear some special lines
+clear_csv_tbench()
+{
+	if [ -f $OUTFILE_TBENCH.csv ]; then
+		sed -i '/Comprison(%)/d' $OUTFILE_TBENCH.csv
+		sed -i "/$(scaling_name)/d" $OUTFILE_TBENCH.csv
+	fi
+}
+
+# find string $1 in file csv and get the number of lines
+get_lines_csv_tbench()
+{
+	if [ -f $OUTFILE_TBENCH.csv ]; then
+		return `grep -c "$1" $OUTFILE_TBENCH.csv`
+	else
+		return 0
+	fi
+}
+
+pre_clear_tbench()
+{
+	post_clear_tbench
+	rm -rf tbench_*.png
+	clear_csv_tbench
+}
+
+post_clear_tbench()
+{
+	rm -rf results/tracer-tbench*
+	rm -rf $OUTFILE_TBENCH*.log
+	rm -rf $OUTFILE_TBENCH*.result
+
+}
+
+# $1: governor, $2: loop
+run_tbench()
+{
+	echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
+	$TRACER -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+
+	printf "Test tbench for $1 #$2 time_limit: $TIME_LIMIT procs_num: $PROCESS_NUM\n"
+	tbench_srv > /dev/null 2>&1 &
+	$PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ tbench -t $TIME_LIMIT $PROCESS_NUM > $OUTFILE_TBENCH-perf-$1-$2.log 2>&1
+
+	pid=`pidof tbench_srv`
+	kill $pid
+
+	for job in `jobs -p`
+	do
+		echo "Waiting for job id $job"
+		wait $job
+	done
+}
+
+# $1: governor, $2: loop
+parse_tbench()
+{
+	awk '{print $5}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-des-perf-$1-$2.log
+	avg_des_perf=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-des-perf-$1-$2.log)
+	printf "Tbench-$1-#$2 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_TBENCH.result
+
+	awk '{print $7}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-freq-$1-$2.log
+	avg_freq=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-freq-$1-$2.log)
+	printf "Tbench-$1-#$2 avg freq: $avg_freq\n" | tee -a $OUTFILE_TBENCH.result
+
+	awk '{print $11}' results/tracer-tbench-$1-$2/cpu.csv | sed -e '1d' | sed s/,// > $OUTFILE_TBENCH-load-$1-$2.log
+	avg_load=$(awk 'BEGIN {i=0; sum=0};{i++; sum += $1};END {print sum/i}' $OUTFILE_TBENCH-load-$1-$2.log)
+	printf "Tbench-$1-#$2 avg load: $avg_load\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep Throughput $OUTFILE_TBENCH-perf-$1-$2.log | awk '{print $2}' > $OUTFILE_TBENCH-throughput-$1-$2.log
+	tp_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-throughput-$1-$2.log)
+	printf "Tbench-$1-#$2 throughput(MB/s): $tp_sum\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep Joules $OUTFILE_TBENCH-perf-$1-$2.log | awk '{print $4}' > $OUTFILE_TBENCH-energy-$1-$2.log
+	en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1-$2.log)
+	printf "Tbench-$1-#$2 power consumption(J): $en_sum\n" | tee -a $OUTFILE_TBENCH.result
+
+	# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
+	# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
+	# and t is time measured in seconds(s). This means that performance per watt becomes
+	#       T/t   T/t    T
+	#       --- = --- = ---
+	#        P    E/t    E
+	# with unit given by MB per joule.
+	ppw=`echo "scale=4;($TIME_LIMIT-1)*$tp_sum/$en_sum" | bc | awk '{printf "%.4f", $0}'`
+	printf "Tbench-$1-#$2 performance per watt(MB/J): $ppw\n" | tee -a $OUTFILE_TBENCH.result
+	printf "\n" | tee -a $OUTFILE_TBENCH.result
+
+	driver_name=`echo $(scaling_name)`
+	store_csv_tbench "$driver_name-$1" $2 $avg_des_perf $avg_freq $avg_load $tp_sum $en_sum $ppw
+}
+
+# $1: governor
+loop_tbench()
+{
+	printf "\nTbench total test times is $LOOP_TIMES for $1\n\n"
+	for i in `seq 1 $LOOP_TIMES`
+	do
+		run_tbench $1 $i
+		parse_tbench $1 $i
+	done
+}
+
+# $1: governor
+gather_tbench()
+{
+	printf "Tbench test result for $1 (loops:$LOOP_TIMES)" | tee -a $OUTFILE_TBENCH.result
+	printf "\n--------------------------------------------------\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg des perf:" | awk '{print $NF}' > $OUTFILE_TBENCH-des-perf-$1.log
+	avg_des_perf=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-des-perf-$1.log)
+	printf "Tbench-$1 avg des perf: $avg_des_perf\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg freq:" | awk '{print $NF}' > $OUTFILE_TBENCH-freq-$1.log
+	avg_freq=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-freq-$1.log)
+	printf "Tbench-$1 avg freq: $avg_freq\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "avg load:" | awk '{print $NF}' > $OUTFILE_TBENCH-load-$1.log
+	avg_load=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-load-$1.log)
+	printf "Tbench-$1 avg load: $avg_load\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "throughput(MB/s):" | awk '{print $NF}' > $OUTFILE_TBENCH-throughput-$1.log
+	tp_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-throughput-$1.log)
+	printf "Tbench-$1 total throughput(MB/s): $tp_sum\n" | tee -a $OUTFILE_TBENCH.result
+
+	avg_tp=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-throughput-$1.log)
+	printf "Tbench-$1 avg throughput(MB/s): $avg_tp\n" | tee -a $OUTFILE_TBENCH.result
+
+	grep "Tbench-$1-#" $OUTFILE_TBENCH.result | grep "power consumption(J):" | awk '{print $NF}' > $OUTFILE_TBENCH-energy-$1.log
+	en_sum=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum}' $OUTFILE_TBENCH-energy-$1.log)
+	printf "Tbench-$1 total power consumption(J): $en_sum\n" | tee -a $OUTFILE_TBENCH.result
+
+	avg_en=$(awk 'BEGIN {sum=0};{sum += $1};END {print sum/'$LOOP_TIMES'}' $OUTFILE_TBENCH-energy-$1.log)
+	printf "Tbench-$1 avg power consumption(J): $avg_en\n" | tee -a $OUTFILE_TBENCH.result
+
+	# Permance is throughput per second, denoted T/t, where T is throught rendered in t seconds.
+	# It is well known that P=E/t, where P is power measured in watts(W), E is energy measured in joules(J),
+	# and t is time measured in seconds(s). This means that performance per watt becomes
+	#       T/t   T/t    T
+	#       --- = --- = ---
+	#        P    E/t    E
+	# with unit given by MB per joule.
+	ppw=`echo "scale=4;($TIME_LIMIT-1)*$avg_tp/$avg_en" | bc | awk '{printf "%.4f", $0}'`
+	printf "Tbench-$1 performance per watt(MB/J): $ppw\n" | tee -a $OUTFILE_TBENCH.result
+	printf "\n" | tee -a $OUTFILE_TBENCH.result
+
+	driver_name=`echo $(scaling_name)`
+	store_csv_tbench "$driver_name-$1" "Average" $avg_des_perf $avg_freq $avg_load $avg_tp $avg_en $ppw
+}
+
+# $1: base scaling_driver $2: base governor $3: comparative scaling_driver $4: comparative governor
+__calc_comp_tbench()
+{
+	base=`grep "$1-$2" $OUTFILE_TBENCH.csv | grep "Average"`
+	comp=`grep "$3-$4" $OUTFILE_TBENCH.csv | grep "Average"`
+
+	if [ -n "$base" -a -n "$comp" ]; then
+		printf "\n==================================================\n" | tee -a $OUTFILE_TBENCH.result
+		printf "Tbench comparison $1-$2 VS $3-$4" | tee -a $OUTFILE_TBENCH.result
+		printf "\n==================================================\n" | tee -a $OUTFILE_TBENCH.result
+
+		# get the base values
+		des_perf_base=`echo "$base" | awk '{print $3}' | sed s/,//`
+		freq_base=`echo "$base" | awk '{print $4}' | sed s/,//`
+		load_base=`echo "$base" | awk '{print $5}' | sed s/,//`
+		perf_base=`echo "$base" | awk '{print $6}' | sed s/,//`
+		energy_base=`echo "$base" | awk '{print $7}' | sed s/,//`
+		ppw_base=`echo "$base" | awk '{print $8}' | sed s/,//`
+
+		# get the comparative values
+		des_perf_comp=`echo "$comp" | awk '{print $3}' | sed s/,//`
+		freq_comp=`echo "$comp" | awk '{print $4}' | sed s/,//`
+		load_comp=`echo "$comp" | awk '{print $5}' | sed s/,//`
+		perf_comp=`echo "$comp" | awk '{print $6}' | sed s/,//`
+		energy_comp=`echo "$comp" | awk '{print $7}' | sed s/,//`
+		ppw_comp=`echo "$comp" | awk '{print $8}' | sed s/,//`
+
+		# compare the base and comp values
+		des_perf_drop=`echo "scale=4;($des_perf_comp-$des_perf_base)*100/$des_perf_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 des perf base: $des_perf_base comprison: $des_perf_comp percent: $des_perf_drop\n" | tee -a $OUTFILE_TBENCH.result
+
+		freq_drop=`echo "scale=4;($freq_comp-$freq_base)*100/$freq_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 freq base: $freq_base comprison: $freq_comp percent: $freq_drop\n" | tee -a $OUTFILE_TBENCH.result
+
+		load_drop=`echo "scale=4;($load_comp-$load_base)*100/$load_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 load base: $load_base comprison: $load_comp percent: $load_drop\n" | tee -a $OUTFILE_TBENCH.result
+
+		perf_drop=`echo "scale=4;($perf_comp-$perf_base)*100/$perf_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 perf base: $perf_base comprison: $perf_comp percent: $perf_drop\n" | tee -a $OUTFILE_TBENCH.result
+
+		energy_drop=`echo "scale=4;($energy_comp-$energy_base)*100/$energy_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 energy base: $energy_base comprison: $energy_comp percent: $energy_drop\n" | tee -a $OUTFILE_TBENCH.result
+
+		ppw_drop=`echo "scale=4;($ppw_comp-$ppw_base)*100/$ppw_base" | bc | awk '{printf "%.4f", $0}'`
+		printf "Tbench-$1 performance per watt base: $ppw_base comprison: $ppw_comp percent: $ppw_drop\n" | tee -a $OUTFILE_TBENCH.result
+		printf "\n" | tee -a $OUTFILE_TBENCH.result
+
+		store_csv_tbench "$1-$2 VS $3-$4" "Comprison(%)" "$des_perf_drop" "$freq_drop" "$load_drop" "$perf_drop" "$energy_drop" "$ppw_drop"
+	fi
+}
+
+# calculate the comparison(%)
+calc_comp_tbench()
+{
+	# acpi-cpufreq-ondemand VS acpi-cpufreq-schedutil
+	__calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[0]} ${all_scaling_names[0]} ${tbench_governors[1]}
+
+	# amd-pstate-ondemand VS amd-pstate-schedutil
+	__calc_comp_tbench ${all_scaling_names[1]} ${tbench_governors[0]} ${all_scaling_names[1]} ${tbench_governors[1]}
+
+	# acpi-cpufreq-ondemand VS amd-pstate-ondemand
+	__calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[0]} ${all_scaling_names[1]} ${tbench_governors[0]}
+
+	# acpi-cpufreq-schedutil VS amd-pstate-schedutil
+	__calc_comp_tbench ${all_scaling_names[0]} ${tbench_governors[1]} ${all_scaling_names[1]} ${tbench_governors[1]}
+}
+
+# $1: file_name, $2: title, $3: ylable, $4: column
+plot_png_tbench()
+{
+	# all_scaling_names[1] all_scaling_names[0] flag
+	#    amd-pstate           acpi-cpufreq
+	#         N                   N             0
+	#         N                   Y             1
+	#         Y                   N             2
+	#         Y                   Y             3
+	ret=`grep -c "${all_scaling_names[1]}" $OUTFILE_TBENCH.csv`
+	if [ $ret -eq 0 ]; then
+		ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_TBENCH.csv`
+		if [ $ret -eq 0 ]; then
+			flag=0
+		else
+			flag=1
+		fi
+	else
+		ret=`grep -c "${all_scaling_names[0]}" $OUTFILE_TBENCH.csv`
+		if [ $ret -eq 0 ]; then
+			flag=2
+		else
+			flag=3
+		fi
+	fi
+
+	gnuplot << EOF
+		set term png
+		set output "$1"
+
+		set title "$2"
+		set xlabel "Test Cycles (round)"
+		set ylabel "$3"
+
+		set grid
+		set style data histogram
+		set style fill solid 0.5 border
+		set boxwidth 0.8
+
+		if ($flag == 1) {
+			plot \
+			"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[0]}", \
+			"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[1]}"
+		} else {
+			if ($flag == 2) {
+				plot \
+				"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[0]}", \
+				"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[1]}"
+			} else {
+				if ($flag == 3 ) {
+					plot \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[0]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[0]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[0]}-${tbench_governors[1]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[0]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[0]}", \
+					"<(sed -n -e 's/,//g' -e '/${all_scaling_names[1]}-${tbench_governors[1]}/p' $OUTFILE_TBENCH.csv)" using $4:xtic(2) title "${all_scaling_names[1]}-${tbench_governors[1]}"
+				}
+			}
+		}
+		quit
+EOF
+}
+
+amd_pstate_tbench()
+{
+	printf "\n---------------------------------------------\n"
+	printf "*** Running tbench                        ***"
+	printf "\n---------------------------------------------\n"
+
+	pre_clear_tbench
+
+	get_lines_csv_tbench "Governor"
+	if [ $? -eq 0 ]; then
+		# add titles and unit for csv file
+		store_csv_tbench "Governor" "Round" "Des-perf" "Freq" "Load" "Performance" "Energy" "Performance Per Watt"
+		store_csv_tbench "Unit" "" "" "GHz" "" "MB/s" "J" "MB/J"
+	fi
+
+	backup_governor
+	for governor in ${tbench_governors[*]} ; do
+		printf "\nSpecified governor is $governor\n\n"
+		switch_governor $governor
+		loop_tbench $governor
+		gather_tbench $governor
+	done
+	restore_governor
+
+	plot_png_tbench "tbench_perfromance.png" "Tbench Benchmark Performance" "Performance" 6
+	plot_png_tbench "tbench_energy.png" "Tbench Benchmark Energy" "Energy (J)" 7
+	plot_png_tbench "tbench_ppw.png" "Tbench Benchmark Performance Per Watt" "Performance Per Watt (MB/J)" 8
+
+	calc_comp_tbench
+
+	post_clear_tbench
+}
diff --git a/tools/testing/selftests/arm64/Makefile b/tools/testing/selftests/arm64/Makefile
new file mode 100644
index 000000000000..c4c72ee2ef55
--- /dev/null
+++ b/tools/testing/selftests/arm64/Makefile
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# When ARCH not overridden for crosscompiling, lookup machine
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+
+ifneq (,$(filter $(ARCH),aarch64 arm64))
+ARM64_SUBTARGETS ?= tags signal pauth fp mte bti abi gcs
+else
+ARM64_SUBTARGETS :=
+endif
+
+CFLAGS := -Wall -O2 -g
+
+# A proper top_srcdir is needed by KSFT(lib.mk)
+top_srcdir = $(realpath ../../../../)
+
+# Additional include paths needed by kselftest.h and local headers
+CFLAGS += -I$(top_srcdir)/tools/testing/selftests/
+
+CFLAGS += $(KHDR_INCLUDES)
+
+CFLAGS += -I$(top_srcdir)/tools/include
+
+OUTPUT ?= $(CURDIR)
+
+export CFLAGS
+export top_srcdir
+
+all:
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		mkdir -p $$BUILD_TARGET;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+install: all
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+run_tests: all
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+# Avoid any output on non arm64 on emit_tests
+emit_tests:
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+clean:
+	@for DIR in $(ARM64_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+.PHONY: all clean install run_tests emit_tests
diff --git a/tools/testing/selftests/arm64/README b/tools/testing/selftests/arm64/README
new file mode 100644
index 000000000000..a1badd882102
--- /dev/null
+++ b/tools/testing/selftests/arm64/README
@@ -0,0 +1,25 @@
+KSelfTest ARM64
+===============
+
+- These tests are arm64 specific and so not built or run but just skipped
+  completely when env-variable ARCH is found to be different than 'arm64'
+  and `uname -m` reports other than 'aarch64'.
+
+- Holding true the above, ARM64 KSFT tests can be run within the KSelfTest
+  framework using standard Linux top-level-makefile targets:
+
+      $ make TARGETS=arm64 kselftest-clean
+      $ make TARGETS=arm64 kselftest
+
+      or
+
+      $ make -C tools/testing/selftests TARGETS=arm64 \
+		INSTALL_PATH=<your-installation-path> install
+
+      or, alternatively, only specific arm64/ subtargets can be picked:
+
+      $ make -C tools/testing/selftests TARGETS=arm64 ARM64_SUBTARGETS="tags signal" \
+		INSTALL_PATH=<your-installation-path> install
+
+   Further details on building and running KFST can be found in:
+     Documentation/dev-tools/kselftest.rst
diff --git a/tools/testing/selftests/arm64/abi/.gitignore b/tools/testing/selftests/arm64/abi/.gitignore
new file mode 100644
index 000000000000..44f8b80f37e3
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/.gitignore
@@ -0,0 +1,4 @@
+hwcap
+ptrace
+syscall-abi
+tpidr2
diff --git a/tools/testing/selftests/arm64/abi/Makefile b/tools/testing/selftests/arm64/abi/Makefile
new file mode 100644
index 000000000000..483488f8c2ad
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 ARM Limited
+
+TEST_GEN_PROGS := hwcap ptrace syscall-abi tpidr2
+
+include ../../lib.mk
+
+$(OUTPUT)/syscall-abi: syscall-abi.c syscall-abi-asm.S
+
+# Build with nolibc since TPIDR2 is intended to be actively managed by
+# libc and we're trying to test the functionality that it depends on here.
+$(OUTPUT)/tpidr2: tpidr2.c
+	$(CC) -fno-asynchronous-unwind-tables -fno-ident -s -Os -nostdlib \
+		-static -include ../../../../include/nolibc/nolibc.h \
+		-I../.. -ffreestanding -Wall $^ -o $@ -lgcc
diff --git a/tools/testing/selftests/arm64/abi/hwcap.c b/tools/testing/selftests/arm64/abi/hwcap.c
new file mode 100644
index 000000000000..c41640f18e4e
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/hwcap.c
@@ -0,0 +1,1295 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ARM Limited.
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <asm/hwcap.h>
+#include <asm/sigcontext.h>
+#include <asm/unistd.h>
+
+#include <linux/auxvec.h>
+
+#include "kselftest.h"
+
+#define TESTS_PER_HWCAP 3
+
+#ifndef AT_HWCAP3
+#define AT_HWCAP3 29
+#endif
+
+/*
+ * Function expected to generate exception when the feature is not
+ * supported and return when it is supported. If the specific exception
+ * is generated then the handler must be able to skip over the
+ * instruction safely.
+ *
+ * Note that it is expected that for many architecture extensions
+ * there are no specific traps due to no architecture state being
+ * added so we may not fault if running on a kernel which doesn't know
+ * to add the hwcap.
+ */
+typedef void (*sig_fn)(void);
+
+static void aes_sigill(void)
+{
+	/* AESE V0.16B, V0.16B */
+	asm volatile(".inst 0x4e284800" : : : );
+}
+
+static void atomics_sigill(void)
+{
+	/* STADD W0, [SP] */
+	asm volatile(".inst 0xb82003ff" : : : );
+}
+
+static void cmpbr_sigill(void)
+{
+	/* Not implemented, too complicated and unreliable anyway */
+}
+
+static void crc32_sigill(void)
+{
+	/* CRC32W W0, W0, W1 */
+	asm volatile(".inst 0x1ac14800" : : : );
+}
+
+static void cssc_sigill(void)
+{
+	/* CNT x0, x0 */
+	asm volatile(".inst 0xdac01c00" : : : "x0");
+}
+
+static void f8cvt_sigill(void)
+{
+	/* FSCALE V0.4H, V0.4H, V0.4H */
+	asm volatile(".inst 0x2ec03c00");
+}
+
+static void f8dp2_sigill(void)
+{
+	/* FDOT V0.4H, V0.4H, V0.5H */
+	asm volatile(".inst 0xe40fc00");
+}
+
+static void f8dp4_sigill(void)
+{
+	/* FDOT V0.2S, V0.2S, V0.2S */
+	asm volatile(".inst 0xe00fc00");
+}
+
+static void f8fma_sigill(void)
+{
+	/* FMLALB V0.8H, V0.16B, V0.16B */
+	asm volatile(".inst 0xec0fc00");
+}
+
+static void f8mm4_sigill(void)
+{
+	/* FMMLA V0.4SH, V0.16B, V0.16B */
+	asm volatile(".inst 0x6e00ec00");
+}
+
+static void f8mm8_sigill(void)
+{
+	/* FMMLA V0.4S, V0.16B, V0.16B */
+	asm volatile(".inst 0x6e80ec00");
+}
+
+static void faminmax_sigill(void)
+{
+	/* FAMIN V0.4H, V0.4H, V0.4H */
+	asm volatile(".inst 0x2ec01c00");
+}
+
+static void fp_sigill(void)
+{
+	asm volatile("fmov s0, #1");
+}
+
+static void fpmr_sigill(void)
+{
+	asm volatile("mrs x0, S3_3_C4_C4_2" : : : "x0");
+}
+
+static void fprcvt_sigill(void)
+{
+	/* FCVTAS S0, H0 */
+	asm volatile(".inst 0x1efa0000");
+}
+
+static void gcs_sigill(void)
+{
+	unsigned long *gcspr;
+
+	asm volatile(
+		"mrs	%0, S3_3_C2_C5_1"
+	: "=r" (gcspr)
+	:
+	: "cc");
+}
+
+static void ilrcpc_sigill(void)
+{
+	/* LDAPUR W0, [SP, #8] */
+	asm volatile(".inst 0x994083e0" : : : );
+}
+
+static void jscvt_sigill(void)
+{
+	/* FJCVTZS W0, D0 */
+	asm volatile(".inst 0x1e7e0000" : : : );
+}
+
+static void lrcpc_sigill(void)
+{
+	/* LDAPR W0, [SP, #0] */
+	asm volatile(".inst 0xb8bfc3e0" : : : );
+}
+
+static void lse128_sigill(void)
+{
+	u64 __attribute__ ((aligned (16))) mem[2] = { 10, 20 };
+	register u64 *memp asm ("x0") = mem;
+	register u64 val0 asm ("x1") = 5;
+	register u64 val1 asm ("x2") = 4;
+
+	/* SWPP X1, X2, [X0] */
+	asm volatile(".inst 0x19228001"
+		     : "+r" (memp), "+r" (val0), "+r" (val1)
+		     :
+		     : "cc", "memory");
+}
+
+static void lsfe_sigill(void)
+{
+	float __attribute__ ((aligned (16))) mem;
+	register float *memp asm ("x0") = &mem;
+
+	/* STFADD H0, [X0] */
+	asm volatile(".inst 0x7c20801f"
+		     : "+r" (memp)
+		     :
+		     : "memory");
+}
+
+static void lut_sigill(void)
+{
+	/* LUTI2 V0.16B, { V0.16B }, V[0] */
+	asm volatile(".inst 0x4e801000");
+}
+
+static void mops_sigill(void)
+{
+	char dst[1], src[1];
+	register char *dstp asm ("x0") = dst;
+	register char *srcp asm ("x1") = src;
+	register long size asm ("x2") = 1;
+
+	/* CPYP [x0]!, [x1]!, x2! */
+	asm volatile(".inst 0x1d010440"
+		     : "+r" (dstp), "+r" (srcp), "+r" (size)
+		     :
+		     : "cc", "memory");
+}
+
+static void pmull_sigill(void)
+{
+	/* PMULL V0.1Q, V0.1D, V0.1D */
+	asm volatile(".inst 0x0ee0e000" : : : );
+}
+
+static void poe_sigill(void)
+{
+	/* mrs x0, POR_EL0 */
+	asm volatile("mrs x0, S3_3_C10_C2_4" : : : "x0");
+}
+
+static void rng_sigill(void)
+{
+	asm volatile("mrs x0, S3_3_C2_C4_0" : : : "x0");
+}
+
+static void sha1_sigill(void)
+{
+	/* SHA1H S0, S0 */
+	asm volatile(".inst 0x5e280800" : : : );
+}
+
+static void sha2_sigill(void)
+{
+	/* SHA256H Q0, Q0, V0.4S */
+	asm volatile(".inst 0x5e004000" : : : );
+}
+
+static void sha512_sigill(void)
+{
+	/* SHA512H Q0, Q0, V0.2D */
+	asm volatile(".inst 0xce608000" : : : );
+}
+
+static void sme_sigill(void)
+{
+	/* RDSVL x0, #0 */
+	asm volatile(".inst 0x04bf5800" : : : "x0");
+}
+
+static void sme2_sigill(void)
+{
+	/* SMSTART ZA */
+	asm volatile("msr S0_3_C4_C5_3, xzr" : : : );
+
+	/* ZERO ZT0 */
+	asm volatile(".inst 0xc0480001" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void sme2p1_sigill(void)
+{
+	/* SMSTART SM */
+	asm volatile("msr S0_3_C4_C3_3, xzr" : : : );
+
+	/* BFCLAMP { Z0.H - Z1.H }, Z0.H, Z0.H */
+	asm volatile(".inst 0xc120C000" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void sme2p2_sigill(void)
+{
+	/* SMSTART SM */
+	asm volatile("msr S0_3_C4_C3_3, xzr" : : : );
+
+	/* UXTB Z0.D, P0/Z, Z0.D  */
+	asm volatile(".inst 0x4c1a000" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void sme_aes_sigill(void)
+{
+	/* SMSTART SM */
+	asm volatile("msr S0_3_C4_C3_3, xzr" : : : );
+
+	/* AESD z0.b, z0.b, z0.b */
+	asm volatile(".inst 0x4522e400" : : : "z0");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void sme_sbitperm_sigill(void)
+{
+	/* SMSTART SM */
+	asm volatile("msr S0_3_C4_C3_3, xzr" : : : );
+
+	/* BDEP Z0.B, Z0.B, Z0.B */
+	asm volatile(".inst 0x4500b400" : : : "z0");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smei16i32_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* SMOPA ZA0.S, P0/M, P0/M, Z0.B, Z0.B */
+	asm volatile(".inst 0xa0800000" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smebi32i32_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* BMOPA ZA0.S, P0/M, P0/M, Z0.B, Z0.B */
+	asm volatile(".inst 0x80800008" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smeb16b16_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* BFADD ZA.H[W0, 0], {Z0.H-Z1.H} */
+	asm volatile(".inst 0xC1E41C00" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smef16f16_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FADD ZA.H[W0, 0], { Z0.H-Z1.H } */
+	asm volatile(".inst 0xc1a41C00" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smef8f16_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FDOT ZA.H[W0, 0], Z0.B-Z1.B, Z0.B-Z1.B */
+	asm volatile(".inst 0xc1a01020" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smef8f32_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FDOT ZA.S[W0, 0], { Z0.B-Z1.B }, Z0.B[0] */
+	asm volatile(".inst 0xc1500038" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smelutv2_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* LUTI4 { Z0.B-Z3.B }, ZT0, { Z0-Z1 } */
+	asm volatile(".inst 0xc08b0000" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8dp2_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FDOT Z0.H, Z0.B, Z0.B[0] */
+	asm volatile(".inst 0x64204400" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8dp4_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FDOT Z0.S, Z0.B, Z0.B[0] */
+	asm volatile(".inst 0xc1a41C00" : : : );
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesf8fma_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FMLALB Z0.8H, Z0.B, Z0.B */
+	asm volatile(".inst 0x64205000");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesfexpa_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* FEXPA Z0.D, Z0.D */
+	asm volatile(".inst 0x04e0b800");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smesmop4_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* SMOP4A ZA0.S, Z0.B, { Z0.B - Z1.B } */
+	asm volatile(".inst 0x80108000");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void smestmop_sigill(void)
+{
+	/* SMSTART */
+	asm volatile("msr S0_3_C4_C7_3, xzr" : : : );
+
+	/* STMOPA ZA0.S, { Z0.H - Z1.H }, Z0.H, Z20[0] */
+	asm volatile(".inst 0x80408008");
+
+	/* SMSTOP */
+	asm volatile("msr S0_3_C4_C6_3, xzr" : : : );
+}
+
+static void sve_sigill(void)
+{
+	/* RDVL x0, #0 */
+	asm volatile(".inst 0x04bf5000" : : : "x0");
+}
+
+static void sve2_sigill(void)
+{
+	/* SQABS Z0.b, P0/M, Z0.B */
+	asm volatile(".inst 0x4408A000" : : : "z0");
+}
+
+static void sve2p1_sigill(void)
+{
+	/* BFADD Z0.H, Z0.H, Z0.H */
+	asm volatile(".inst 0x65000000" : : : "z0");
+}
+
+static void sve2p2_sigill(void)
+{
+	/* NOT Z0.D, P0/Z, Z0.D */
+	asm volatile(".inst 0x4cea000" : : : "z0");
+}
+
+static void sveaes_sigill(void)
+{
+	/* AESD z0.b, z0.b, z0.b */
+	asm volatile(".inst 0x4522e400" : : : "z0");
+}
+
+static void sveaes2_sigill(void)
+{
+	/* AESD {Z0.B - Z1.B }, { Z0.B - Z1.B }, Z0.Q */
+	asm volatile(".inst 0x4522ec00" : : : "z0");
+}
+
+static void sveb16b16_sigill(void)
+{
+	/* BFADD Z0.H, Z0.H, Z0.H */
+	asm volatile(".inst 0x65000000" : : : );
+}
+
+static void svebfscale_sigill(void)
+{
+	/* BFSCALE Z0.H, P0/M, Z0.H, Z0.H */
+	asm volatile(".inst 0x65098000" : : : "z0");
+}
+
+static void svef16mm_sigill(void)
+{
+	/* FMMLA Z0.S, Z0.H, Z0.H */
+	asm volatile(".inst 0x6420e400");
+}
+
+static void svepmull_sigill(void)
+{
+	/* PMULLB Z0.Q, Z0.D, Z0.D */
+	asm volatile(".inst 0x45006800" : : : "z0");
+}
+
+static void svebitperm_sigill(void)
+{
+	/* BDEP Z0.B, Z0.B, Z0.B */
+	asm volatile(".inst 0x4500b400" : : : "z0");
+}
+
+static void svesha3_sigill(void)
+{
+	/* EOR3 Z0.D, Z0.D, Z0.D, Z0.D */
+	asm volatile(".inst 0x4203800" : : : "z0");
+}
+
+static void sveeltperm_sigill(void)
+{
+	/* COMPACT Z0.B, P0, Z0.B */
+	asm volatile(".inst 0x5218000" : : : "x0");
+}
+
+static void svesm4_sigill(void)
+{
+	/* SM4E Z0.S, Z0.S, Z0.S */
+	asm volatile(".inst 0x4523e000" : : : "z0");
+}
+
+static void svei8mm_sigill(void)
+{
+	/* USDOT Z0.S, Z0.B, Z0.B[0] */
+	asm volatile(".inst 0x44a01800" : : : "z0");
+}
+
+static void svef32mm_sigill(void)
+{
+	/* FMMLA Z0.S, Z0.S, Z0.S */
+	asm volatile(".inst 0x64a0e400" : : : "z0");
+}
+
+static void svef64mm_sigill(void)
+{
+	/* FMMLA Z0.D, Z0.D, Z0.D */
+	asm volatile(".inst 0x64e0e400" : : : "z0");
+}
+
+static void svebf16_sigill(void)
+{
+	/* BFCVT Z0.H, P0/M, Z0.S */
+	asm volatile(".inst 0x658aa000" : : : "z0");
+}
+
+static void hbc_sigill(void)
+{
+	/* BC.EQ +4 */
+	asm volatile("cmp xzr, xzr\n"
+		     ".inst 0x54000030" : : : "cc");
+}
+
+static void uscat_sigbus(void)
+{
+	/* unaligned atomic access */
+	asm volatile("ADD x1, sp, #2" : : : );
+	/* STADD W0, [X1] */
+	asm volatile(".inst 0xb820003f" : : : );
+}
+
+static void lrcpc3_sigill(void)
+{
+	int data[2] = { 1, 2 };
+
+	register int *src asm ("x0") = data;
+	register int data0 asm ("w2") = 0;
+	register int data1 asm ("w3") = 0;
+
+	/* LDIAPP w2, w3, [x0] */
+	asm volatile(".inst 0x99431802"
+	              : "=r" (data0), "=r" (data1) : "r" (src) :);
+}
+
+static const struct hwcap_data {
+	const char *name;
+	unsigned long at_hwcap;
+	unsigned long hwcap_bit;
+	const char *cpuinfo;
+	sig_fn sigill_fn;
+	bool sigill_reliable;
+	sig_fn sigbus_fn;
+	bool sigbus_reliable;
+} hwcaps[] = {
+	{
+		.name = "AES",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_AES,
+		.cpuinfo = "aes",
+		.sigill_fn = aes_sigill,
+	},
+	{
+		.name = "CMPBR",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_CMPBR,
+		.cpuinfo = "cmpbr",
+		.sigill_fn = cmpbr_sigill,
+	},
+	{
+		.name = "CRC32",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_CRC32,
+		.cpuinfo = "crc32",
+		.sigill_fn = crc32_sigill,
+	},
+	{
+		.name = "CSSC",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_CSSC,
+		.cpuinfo = "cssc",
+		.sigill_fn = cssc_sigill,
+	},
+	{
+		.name = "F8CVT",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8CVT,
+		.cpuinfo = "f8cvt",
+		.sigill_fn = f8cvt_sigill,
+	},
+	{
+		.name = "F8DP4",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8DP4,
+		.cpuinfo = "f8dp4",
+		.sigill_fn = f8dp4_sigill,
+	},
+	{
+		.name = "F8DP2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8DP2,
+		.cpuinfo = "f8dp2",
+		.sigill_fn = f8dp2_sigill,
+	},
+	{
+		.name = "F8E5M2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8E5M2,
+		.cpuinfo = "f8e5m2",
+	},
+	{
+		.name = "F8E4M3",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8E4M3,
+		.cpuinfo = "f8e4m3",
+	},
+	{
+		.name = "F8FMA",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_F8FMA,
+		.cpuinfo = "f8fma",
+		.sigill_fn = f8fma_sigill,
+	},
+	{
+		.name = "F8MM8",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_F8MM8,
+		.cpuinfo = "f8mm8",
+		.sigill_fn = f8mm8_sigill,
+	},
+	{
+		.name = "F8MM4",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_F8MM4,
+		.cpuinfo = "f8mm4",
+		.sigill_fn = f8mm4_sigill,
+	},
+	{
+		.name = "FAMINMAX",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_FAMINMAX,
+		.cpuinfo = "faminmax",
+		.sigill_fn = faminmax_sigill,
+	},
+	{
+		.name = "FP",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_FP,
+		.cpuinfo = "fp",
+		.sigill_fn = fp_sigill,
+	},
+	{
+		.name = "FPMR",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_FPMR,
+		.cpuinfo = "fpmr",
+		.sigill_fn = fpmr_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "FPRCVT",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_FPRCVT,
+		.cpuinfo = "fprcvt",
+		.sigill_fn = fprcvt_sigill,
+	},
+	{
+		.name = "GCS",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_GCS,
+		.cpuinfo = "gcs",
+		.sigill_fn = gcs_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "JSCVT",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_JSCVT,
+		.cpuinfo = "jscvt",
+		.sigill_fn = jscvt_sigill,
+	},
+	{
+		.name = "LRCPC",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_LRCPC,
+		.cpuinfo = "lrcpc",
+		.sigill_fn = lrcpc_sigill,
+	},
+	{
+		.name = "LRCPC2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_ILRCPC,
+		.cpuinfo = "ilrcpc",
+		.sigill_fn = ilrcpc_sigill,
+	},
+	{
+		.name = "LRCPC3",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_LRCPC3,
+		.cpuinfo = "lrcpc3",
+		.sigill_fn = lrcpc3_sigill,
+	},
+	{
+		.name = "LSE",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_ATOMICS,
+		.cpuinfo = "atomics",
+		.sigill_fn = atomics_sigill,
+	},
+	{
+		.name = "LSE2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_USCAT,
+		.cpuinfo = "uscat",
+		.sigill_fn = atomics_sigill,
+		.sigbus_fn = uscat_sigbus,
+		.sigbus_reliable = true,
+	},
+	{
+		.name = "LSE128",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_LSE128,
+		.cpuinfo = "lse128",
+		.sigill_fn = lse128_sigill,
+	},
+	{
+		.name = "LSFE",
+		.at_hwcap = AT_HWCAP3,
+		.hwcap_bit = HWCAP3_LSFE,
+		.cpuinfo = "lsfe",
+		.sigill_fn = lsfe_sigill,
+	},
+	{
+		.name = "LUT",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_LUT,
+		.cpuinfo = "lut",
+		.sigill_fn = lut_sigill,
+	},
+	{
+		.name = "MOPS",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_MOPS,
+		.cpuinfo = "mops",
+		.sigill_fn = mops_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "PMULL",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_PMULL,
+		.cpuinfo = "pmull",
+		.sigill_fn = pmull_sigill,
+	},
+	{
+		.name = "POE",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_POE,
+		.cpuinfo = "poe",
+		.sigill_fn = poe_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "RNG",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_RNG,
+		.cpuinfo = "rng",
+		.sigill_fn = rng_sigill,
+	},
+	{
+		.name = "RPRFM",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_RPRFM,
+		.cpuinfo = "rprfm",
+	},
+	{
+		.name = "SHA1",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SHA1,
+		.cpuinfo = "sha1",
+		.sigill_fn = sha1_sigill,
+	},
+	{
+		.name = "SHA2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SHA2,
+		.cpuinfo = "sha2",
+		.sigill_fn = sha2_sigill,
+	},
+	{
+		.name = "SHA512",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SHA512,
+		.cpuinfo = "sha512",
+		.sigill_fn = sha512_sigill,
+	},
+	{
+		.name = "SME",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME,
+		.cpuinfo = "sme",
+		.sigill_fn = sme_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "SME2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME2,
+		.cpuinfo = "sme2",
+		.sigill_fn = sme2_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "SME 2.1",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME2P1,
+		.cpuinfo = "sme2p1",
+		.sigill_fn = sme2p1_sigill,
+	},
+	{
+		.name = "SME 2.2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME2P2,
+		.cpuinfo = "sme2p2",
+		.sigill_fn = sme2p2_sigill,
+	},
+	{
+		.name = "SME AES",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME_AES,
+		.cpuinfo = "smeaes",
+		.sigill_fn = sme_aes_sigill,
+	},
+	{
+		.name = "SME I16I32",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_I16I32,
+		.cpuinfo = "smei16i32",
+		.sigill_fn = smei16i32_sigill,
+	},
+	{
+		.name = "SME BI32I32",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_BI32I32,
+		.cpuinfo = "smebi32i32",
+		.sigill_fn = smebi32i32_sigill,
+	},
+	{
+		.name = "SME B16B16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_B16B16,
+		.cpuinfo = "smeb16b16",
+		.sigill_fn = smeb16b16_sigill,
+	},
+	{
+		.name = "SME F16F16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_F16F16,
+		.cpuinfo = "smef16f16",
+		.sigill_fn = smef16f16_sigill,
+	},
+	{
+		.name = "SME F8F16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_F8F16,
+		.cpuinfo = "smef8f16",
+		.sigill_fn = smef8f16_sigill,
+	},
+	{
+		.name = "SME F8F32",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_F8F32,
+		.cpuinfo = "smef8f32",
+		.sigill_fn = smef8f32_sigill,
+	},
+	{
+		.name = "SME LUTV2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_LUTV2,
+		.cpuinfo = "smelutv2",
+		.sigill_fn = smelutv2_sigill,
+	},
+	{
+		.name = "SME SBITPERM",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME_SBITPERM,
+		.cpuinfo = "smesbitperm",
+		.sigill_fn = sme_sbitperm_sigill,
+	},
+	{
+		.name = "SME SF8FMA",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_SF8FMA,
+		.cpuinfo = "smesf8fma",
+		.sigill_fn = smesf8fma_sigill,
+	},
+	{
+		.name = "SME SF8DP2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_SF8DP2,
+		.cpuinfo = "smesf8dp2",
+		.sigill_fn = smesf8dp2_sigill,
+	},
+	{
+		.name = "SME SF8DP4",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SME_SF8DP4,
+		.cpuinfo = "smesf8dp4",
+		.sigill_fn = smesf8dp4_sigill,
+	},
+	{
+		.name = "SME SFEXPA",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME_SFEXPA,
+		.cpuinfo = "smesfexpa",
+		.sigill_fn = smesfexpa_sigill,
+	},
+	{
+		.name = "SME SMOP4",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME_SMOP4,
+		.cpuinfo = "smesmop4",
+		.sigill_fn = smesmop4_sigill,
+	},
+	{
+		.name = "SME STMOP",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SME_STMOP,
+		.cpuinfo = "smestmop",
+		.sigill_fn = smestmop_sigill,
+	},
+	{
+		.name = "SVE",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE,
+		.cpuinfo = "sve",
+		.sigill_fn = sve_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "SVE 2",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVE2,
+		.cpuinfo = "sve2",
+		.sigill_fn = sve2_sigill,
+	},
+	{
+		.name = "SVE 2.1",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVE2P1,
+		.cpuinfo = "sve2p1",
+		.sigill_fn = sve2p1_sigill,
+	},
+	{
+		.name = "SVE 2.2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE2P2,
+		.cpuinfo = "sve2p2",
+		.sigill_fn = sve2p2_sigill,
+	},
+	{
+		.name = "SVE AES",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEAES,
+		.cpuinfo = "sveaes",
+		.sigill_fn = sveaes_sigill,
+	},
+	{
+		.name = "SVE AES2",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE_AES2,
+		.cpuinfo = "sveaes2",
+		.sigill_fn = sveaes2_sigill,
+	},
+	{
+		.name = "SVE BFSCALE",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE_BFSCALE,
+		.cpuinfo = "svebfscale",
+		.sigill_fn = svebfscale_sigill,
+	},
+	{
+		.name = "SVE ELTPERM",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE_ELTPERM,
+		.cpuinfo = "sveeltperm",
+		.sigill_fn = sveeltperm_sigill,
+	},
+	{
+		.name = "SVE F16MM",
+		.at_hwcap = AT_HWCAP,
+		.hwcap_bit = HWCAP_SVE_F16MM,
+		.cpuinfo = "svef16mm",
+		.sigill_fn = svef16mm_sigill,
+	},
+	{
+		.name = "SVE2 B16B16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVE_B16B16,
+		.cpuinfo = "sveb16b16",
+		.sigill_fn = sveb16b16_sigill,
+	},
+	{
+		.name = "SVE2 PMULL",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEPMULL,
+		.cpuinfo = "svepmull",
+		.sigill_fn = svepmull_sigill,
+	},
+	{
+		.name = "SVE2 BITPERM",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEBITPERM,
+		.cpuinfo = "svebitperm",
+		.sigill_fn = svebitperm_sigill,
+	},
+	{
+		.name = "SVE2 SHA3",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVESHA3,
+		.cpuinfo = "svesha3",
+		.sigill_fn = svesha3_sigill,
+	},
+	{
+		.name = "SVE2 SM4",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVESM4,
+		.cpuinfo = "svesm4",
+		.sigill_fn = svesm4_sigill,
+	},
+	{
+		.name = "SVE2 I8MM",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEI8MM,
+		.cpuinfo = "svei8mm",
+		.sigill_fn = svei8mm_sigill,
+	},
+	{
+		.name = "SVE2 F32MM",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEF32MM,
+		.cpuinfo = "svef32mm",
+		.sigill_fn = svef32mm_sigill,
+	},
+	{
+		.name = "SVE2 F64MM",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEF64MM,
+		.cpuinfo = "svef64mm",
+		.sigill_fn = svef64mm_sigill,
+	},
+	{
+		.name = "SVE2 BF16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVEBF16,
+		.cpuinfo = "svebf16",
+		.sigill_fn = svebf16_sigill,
+	},
+	{
+		.name = "SVE2 EBF16",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_SVE_EBF16,
+		.cpuinfo = "sveebf16",
+	},
+	{
+		.name = "HBC",
+		.at_hwcap = AT_HWCAP2,
+		.hwcap_bit = HWCAP2_HBC,
+		.cpuinfo = "hbc",
+		.sigill_fn = hbc_sigill,
+		.sigill_reliable = true,
+	},
+	{
+		.name = "MTE_FAR",
+		.at_hwcap = AT_HWCAP3,
+		.hwcap_bit = HWCAP3_MTE_FAR,
+		.cpuinfo = "mtefar",
+	},
+	{
+		.name = "MTE_STOREONLY",
+		.at_hwcap = AT_HWCAP3,
+		.hwcap_bit = HWCAP3_MTE_STORE_ONLY,
+		.cpuinfo = "mtestoreonly",
+	},
+};
+
+typedef void (*sighandler_fn)(int, siginfo_t *, void *);
+
+#define DEF_SIGHANDLER_FUNC(SIG, NUM)					\
+static bool seen_##SIG;							\
+static void handle_##SIG(int sig, siginfo_t *info, void *context)	\
+{									\
+	ucontext_t *uc = context;					\
+									\
+	seen_##SIG = true;						\
+	/* Skip over the offending instruction */			\
+	uc->uc_mcontext.pc += 4;					\
+}
+
+DEF_SIGHANDLER_FUNC(sigill, SIGILL);
+DEF_SIGHANDLER_FUNC(sigbus, SIGBUS);
+
+bool cpuinfo_present(const char *name)
+{
+	FILE *f;
+	char buf[2048], name_space[30], name_newline[30];
+	char *s;
+
+	/*
+	 * The feature should appear with a leading space and either a
+	 * trailing space or a newline.
+	 */
+	snprintf(name_space, sizeof(name_space), " %s ", name);
+	snprintf(name_newline, sizeof(name_newline), " %s\n", name);
+
+	f = fopen("/proc/cpuinfo", "r");
+	if (!f) {
+		ksft_print_msg("Failed to open /proc/cpuinfo\n");
+		return false;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		/* Features: line? */
+		if (strncmp(buf, "Features\t:", strlen("Features\t:")) != 0)
+			continue;
+
+		/* All CPUs should be symmetric, don't read any more */
+		fclose(f);
+
+		s = strstr(buf, name_space);
+		if (s)
+			return true;
+		s = strstr(buf, name_newline);
+		if (s)
+			return true;
+
+		return false;
+	}
+
+	ksft_print_msg("Failed to find Features in /proc/cpuinfo\n");
+	fclose(f);
+	return false;
+}
+
+static int install_sigaction(int signum, sighandler_fn handler)
+{
+	int ret;
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handler;
+	sa.sa_flags = SA_RESTART | SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	ret = sigaction(signum, &sa, NULL);
+	if (ret < 0)
+		ksft_exit_fail_msg("Failed to install SIGNAL handler: %s (%d)\n",
+				   strerror(errno), errno);
+
+	return ret;
+}
+
+static void uninstall_sigaction(int signum)
+{
+	if (sigaction(signum, NULL, NULL) < 0)
+		ksft_exit_fail_msg("Failed to uninstall SIGNAL handler: %s (%d)\n",
+				   strerror(errno), errno);
+}
+
+#define DEF_INST_RAISE_SIG(SIG, NUM)					\
+static bool inst_raise_##SIG(const struct hwcap_data *hwcap,		\
+				bool have_hwcap)			\
+{									\
+	if (!hwcap->SIG##_fn) {						\
+		ksft_test_result_skip(#SIG"_%s\n", hwcap->name);	\
+		/* assume that it would raise exception in default */	\
+		return true;						\
+	}								\
+									\
+	install_sigaction(NUM, handle_##SIG);				\
+									\
+	seen_##SIG = false;						\
+	hwcap->SIG##_fn();						\
+									\
+	if (have_hwcap) {						\
+		/* Should be able to use the extension */		\
+		ksft_test_result(!seen_##SIG,				\
+				#SIG"_%s\n", hwcap->name);		\
+	} else if (hwcap->SIG##_reliable) {				\
+		/* Guaranteed a SIGNAL */				\
+		ksft_test_result(seen_##SIG,				\
+				#SIG"_%s\n", hwcap->name);		\
+	} else {							\
+		/* Missing SIGNAL might be fine */			\
+		ksft_print_msg(#SIG"_%sreported for %s\n",		\
+				seen_##SIG ? "" : "not ",		\
+				hwcap->name);				\
+		ksft_test_result_skip(#SIG"_%s\n",			\
+					hwcap->name);			\
+	}								\
+									\
+	uninstall_sigaction(NUM);					\
+	return seen_##SIG;						\
+}
+
+DEF_INST_RAISE_SIG(sigill, SIGILL);
+DEF_INST_RAISE_SIG(sigbus, SIGBUS);
+
+int main(void)
+{
+	int i;
+	const struct hwcap_data *hwcap;
+	bool have_cpuinfo, have_hwcap, raise_sigill;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(hwcaps) * TESTS_PER_HWCAP);
+
+	for (i = 0; i < ARRAY_SIZE(hwcaps); i++) {
+		hwcap = &hwcaps[i];
+
+		have_hwcap = getauxval(hwcap->at_hwcap) & hwcap->hwcap_bit;
+		have_cpuinfo = cpuinfo_present(hwcap->cpuinfo);
+
+		if (have_hwcap)
+			ksft_print_msg("%s present\n", hwcap->name);
+
+		ksft_test_result(have_hwcap == have_cpuinfo,
+				 "cpuinfo_match_%s\n", hwcap->name);
+
+		/*
+		 * Testing for SIGBUS only makes sense after make sure
+		 * that the instruction does not cause a SIGILL signal.
+		 */
+		raise_sigill = inst_raise_sigill(hwcap, have_hwcap);
+		if (!raise_sigill)
+			inst_raise_sigbus(hwcap, have_hwcap);
+		else
+			ksft_test_result_skip("sigbus_%s\n", hwcap->name);
+	}
+
+	ksft_print_cnts();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/abi/ptrace.c b/tools/testing/selftests/arm64/abi/ptrace.c
new file mode 100644
index 000000000000..0e46ac21c81d
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/ptrace.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ARM Limited.
+ */
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/sigcontext.h>
+#include <asm/ptrace.h>
+
+#include "kselftest.h"
+
+#define EXPECTED_TESTS 11
+
+#define MAX_TPIDRS 2
+
+static bool have_sme(void)
+{
+	return getauxval(AT_HWCAP2) & HWCAP2_SME;
+}
+
+static void test_tpidr(pid_t child)
+{
+	uint64_t read_val[MAX_TPIDRS];
+	uint64_t write_val[MAX_TPIDRS];
+	struct iovec read_iov, write_iov;
+	bool test_tpidr2 = false;
+	int ret, i;
+
+	read_iov.iov_base = read_val;
+	write_iov.iov_base = write_val;
+
+	/* Should be able to read a single TPIDR... */
+	read_iov.iov_len = sizeof(uint64_t);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov);
+	ksft_test_result(ret == 0, "read_tpidr_one\n");
+
+	/* ...write a new value.. */
+	write_iov.iov_len = sizeof(uint64_t);
+	write_val[0] = read_val[0] + 1;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov);
+	ksft_test_result(ret == 0, "write_tpidr_one\n");
+
+	/* ...then read it back */
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov);
+	ksft_test_result(ret == 0 && write_val[0] == read_val[0],
+			 "verify_tpidr_one\n");
+
+	/* If we have TPIDR2 we should be able to read it */
+	read_iov.iov_len = sizeof(read_val);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov);
+	if (ret == 0) {
+		/* If we have SME there should be two TPIDRs */
+		if (read_iov.iov_len >= sizeof(read_val))
+			test_tpidr2 = true;
+
+		if (have_sme() && test_tpidr2) {
+			ksft_test_result(test_tpidr2, "count_tpidrs\n");
+		} else {
+			ksft_test_result(read_iov.iov_len % sizeof(uint64_t) == 0,
+					 "count_tpidrs\n");
+		}
+	} else {
+		ksft_test_result_fail("count_tpidrs\n");
+	}
+
+	if (test_tpidr2) {
+		/* Try to write new values to all known TPIDRs... */
+		write_iov.iov_len = sizeof(write_val);
+		for (i = 0; i < MAX_TPIDRS; i++)
+			write_val[i] = read_val[i] + 1;
+		ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov);
+
+		ksft_test_result(ret == 0 &&
+				 write_iov.iov_len == sizeof(write_val),
+				 "tpidr2_write\n");
+
+		/* ...then read them back */
+		read_iov.iov_len = sizeof(read_val);
+		ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS, &read_iov);
+
+		if (have_sme()) {
+			/* Should read back the written value */
+			ksft_test_result(ret == 0 &&
+					 read_iov.iov_len >= sizeof(read_val) &&
+					 memcmp(read_val, write_val,
+						sizeof(read_val)) == 0,
+					 "tpidr2_read\n");
+		} else {
+			/* TPIDR2 should read as zero */
+			ksft_test_result(ret == 0 &&
+					 read_iov.iov_len >= sizeof(read_val) &&
+					 read_val[0] == write_val[0] &&
+					 read_val[1] == 0,
+					 "tpidr2_read\n");
+		}
+
+		/* Writing only TPIDR... */
+		write_iov.iov_len = sizeof(uint64_t);
+		memcpy(write_val, read_val, sizeof(read_val));
+		write_val[0] += 1;
+		ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_TLS, &write_iov);
+
+		if (ret == 0) {
+			/* ...should leave TPIDR2 untouched */
+			read_iov.iov_len = sizeof(read_val);
+			ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_TLS,
+				     &read_iov);
+
+			ksft_test_result(ret == 0 &&
+					 read_iov.iov_len >= sizeof(read_val) &&
+					 memcmp(read_val, write_val,
+						sizeof(read_val)) == 0,
+					 "write_tpidr_only\n");
+		} else {
+			ksft_test_result_fail("write_tpidr_only\n");
+		}
+	} else {
+		ksft_test_result_skip("tpidr2_write\n");
+		ksft_test_result_skip("tpidr2_read\n");
+		ksft_test_result_skip("write_tpidr_only\n");
+	}
+}
+
+static void test_hw_debug(pid_t child, int type, const char *type_name)
+{
+	struct user_hwdebug_state state;
+	struct iovec iov;
+	int slots, arch, ret;
+
+	iov.iov_len = sizeof(state);
+	iov.iov_base = &state;
+
+	/* Should be able to read the values */
+	ret = ptrace(PTRACE_GETREGSET, child, type, &iov);
+	ksft_test_result(ret == 0, "read_%s\n", type_name);
+
+	if (ret == 0) {
+		/* Low 8 bits is the number of slots, next 4 bits the arch */
+		slots = state.dbg_info & 0xff;
+		arch = (state.dbg_info >> 8) & 0xf;
+
+		ksft_print_msg("%s version %d with %d slots\n", type_name,
+			       arch, slots);
+
+		/* Zero is not currently architecturally valid */
+		ksft_test_result(arch, "%s_arch_set\n", type_name);
+	} else {
+		ksft_test_result_skip("%s_arch_set\n", type_name);
+	}
+}
+
+static int do_child(void)
+{
+	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
+		ksft_exit_fail_perror("PTRACE_TRACEME");
+
+	if (raise(SIGSTOP))
+		ksft_exit_fail_perror("raise(SIGSTOP)");
+
+	return EXIT_SUCCESS;
+}
+
+static int do_parent(pid_t child)
+{
+	int ret = EXIT_FAILURE;
+	pid_t pid;
+	int status;
+	siginfo_t si;
+
+	/* Attach to the child */
+	while (1) {
+		int sig;
+
+		pid = wait(&status);
+		if (pid == -1) {
+			perror("wait");
+			goto error;
+		}
+
+		/*
+		 * This should never happen but it's hard to flag in
+		 * the framework.
+		 */
+		if (pid != child)
+			continue;
+
+		if (WIFEXITED(status) || WIFSIGNALED(status))
+			ksft_exit_fail_msg("Child died unexpectedly\n");
+
+		if (!WIFSTOPPED(status))
+			goto error;
+
+		sig = WSTOPSIG(status);
+
+		if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &si)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			if (errno == EINVAL) {
+				sig = 0; /* bust group-stop */
+				goto cont;
+			}
+
+			ksft_test_result_fail("PTRACE_GETSIGINFO: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+
+		if (sig == SIGSTOP && si.si_code == SI_TKILL &&
+		    si.si_pid == pid)
+			break;
+
+	cont:
+		if (ptrace(PTRACE_CONT, pid, NULL, sig)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			ksft_test_result_fail("PTRACE_CONT: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+	}
+
+	ksft_print_msg("Parent is %d, child is %d\n", getpid(), child);
+
+	test_tpidr(child);
+	test_hw_debug(child, NT_ARM_HW_WATCH, "NT_ARM_HW_WATCH");
+	test_hw_debug(child, NT_ARM_HW_BREAK, "NT_ARM_HW_BREAK");
+
+	ret = EXIT_SUCCESS;
+
+error:
+	kill(child, SIGKILL);
+
+disappeared:
+	return ret;
+}
+
+int main(void)
+{
+	int ret = EXIT_SUCCESS;
+	pid_t child;
+
+	srandom(getpid());
+
+	ksft_print_header();
+
+	ksft_set_plan(EXPECTED_TESTS);
+
+	child = fork();
+	if (!child)
+		return do_child();
+
+	if (do_parent(child))
+		ret = EXIT_FAILURE;
+
+	ksft_print_cnts();
+
+	return ret;
+}
diff --git a/tools/testing/selftests/arm64/abi/syscall-abi-asm.S b/tools/testing/selftests/arm64/abi/syscall-abi-asm.S
new file mode 100644
index 000000000000..66ab2e0bae5f
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/syscall-abi-asm.S
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021 ARM Limited.
+//
+// Assembly portion of the syscall ABI test
+
+//
+// Load values from memory into registers, invoke a syscall and save the
+// register values back to memory for later checking.  The syscall to be
+// invoked is configured in x8 of the input GPR data.
+//
+// x0:	SVE VL, 0 for FP only
+// x1:	SME VL
+//
+//	GPRs:	gpr_in, gpr_out
+//	FPRs:	fpr_in, fpr_out
+//	Zn:	z_in, z_out
+//	Pn:	p_in, p_out
+//	FFR:	ffr_in, ffr_out
+//	ZA:	za_in, za_out
+//	SVCR:	svcr_in, svcr_out
+
+#include "syscall-abi.h"
+
+.arch_extension sve
+
+#define ID_AA64SMFR0_EL1_SMEver_SHIFT           56
+#define ID_AA64SMFR0_EL1_SMEver_WIDTH           4
+
+/*
+ * LDR (vector to ZA array):
+ *	LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
+ */
+.macro _ldr_za nw, nxbase, offset=0
+	.inst	0xe1000000			\
+		| (((\nw) & 3) << 13)		\
+		| ((\nxbase) << 5)		\
+		| ((\offset) & 7)
+.endm
+
+/*
+ * STR (vector from ZA array):
+ *	STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
+ */
+.macro _str_za nw, nxbase, offset=0
+	.inst	0xe1200000			\
+		| (((\nw) & 3) << 13)		\
+		| ((\nxbase) << 5)		\
+		| ((\offset) & 7)
+.endm
+
+/*
+ * LDR (ZT0)
+ *
+ *	LDR ZT0, nx
+ */
+.macro _ldr_zt nx
+	.inst	0xe11f8000			\
+		| (((\nx) & 0x1f) << 5)
+.endm
+
+/*
+ * STR (ZT0)
+ *
+ *	STR ZT0, nx
+ */
+.macro _str_zt nx
+	.inst	0xe13f8000			\
+		| (((\nx) & 0x1f) << 5)
+.endm
+
+.globl do_syscall
+do_syscall:
+	// Store callee saved registers x19-x29 (80 bytes) plus x0 and x1
+	stp	x29, x30, [sp, #-112]!
+	mov	x29, sp
+	stp	x0, x1, [sp, #16]
+	stp	x19, x20, [sp, #32]
+	stp	x21, x22, [sp, #48]
+	stp	x23, x24, [sp, #64]
+	stp	x25, x26, [sp, #80]
+	stp	x27, x28, [sp, #96]
+
+	// Set SVCR if we're doing SME
+	cbz	x1, load_gpr
+	adrp	x2, svcr_in
+	ldr	x2, [x2, :lo12:svcr_in]
+	msr	S3_3_C4_C2_2, x2
+
+	// Load ZA and ZT0 if enabled - uses x12 as scratch due to SME LDR
+	tbz	x2, #SVCR_ZA_SHIFT, load_gpr
+	mov	w12, #0
+	ldr	x2, =za_in
+1:	_ldr_za 12, 2
+	add	x2, x2, x1
+	add	x12, x12, #1
+	cmp	x1, x12
+	bne	1b
+
+	// ZT0
+	mrs	x2, S3_0_C0_C4_5	// ID_AA64SMFR0_EL1
+	ubfx	x2, x2, #ID_AA64SMFR0_EL1_SMEver_SHIFT, \
+			 #ID_AA64SMFR0_EL1_SMEver_WIDTH
+	cbz	x2, load_gpr
+	adrp	x2, zt_in
+	add	x2, x2, :lo12:zt_in
+	_ldr_zt 2
+
+load_gpr:
+	// Load GPRs x8-x28, and save our SP/FP for later comparison
+	ldr	x2, =gpr_in
+	add	x2, x2, #64
+	ldp	x8, x9, [x2], #16
+	ldp	x10, x11, [x2], #16
+	ldp	x12, x13, [x2], #16
+	ldp	x14, x15, [x2], #16
+	ldp	x16, x17, [x2], #16
+	ldp	x18, x19, [x2], #16
+	ldp	x20, x21, [x2], #16
+	ldp	x22, x23, [x2], #16
+	ldp	x24, x25, [x2], #16
+	ldp	x26, x27, [x2], #16
+	ldr	x28, [x2], #8
+	str	x29, [x2], #8		// FP
+	str	x30, [x2], #8		// LR
+
+	// Load FPRs if we're not doing neither SVE nor streaming SVE
+	cbnz	x0, check_sve_in
+	ldr	x2, =svcr_in
+	tbnz	x2, #SVCR_SM_SHIFT, check_sve_in
+
+	ldr	x2, =fpr_in
+	ldp	q0, q1, [x2]
+	ldp	q2, q3, [x2, #16 * 2]
+	ldp	q4, q5, [x2, #16 * 4]
+	ldp	q6, q7, [x2, #16 * 6]
+	ldp	q8, q9, [x2, #16 * 8]
+	ldp	q10, q11, [x2, #16 * 10]
+	ldp	q12, q13, [x2, #16 * 12]
+	ldp	q14, q15, [x2, #16 * 14]
+	ldp	q16, q17, [x2, #16 * 16]
+	ldp	q18, q19, [x2, #16 * 18]
+	ldp	q20, q21, [x2, #16 * 20]
+	ldp	q22, q23, [x2, #16 * 22]
+	ldp	q24, q25, [x2, #16 * 24]
+	ldp	q26, q27, [x2, #16 * 26]
+	ldp	q28, q29, [x2, #16 * 28]
+	ldp	q30, q31, [x2, #16 * 30]
+
+	b	2f
+
+check_sve_in:
+	// Load the SVE registers if we're doing SVE/SME
+
+	ldr	x2, =z_in
+	ldr	z0, [x2, #0, MUL VL]
+	ldr	z1, [x2, #1, MUL VL]
+	ldr	z2, [x2, #2, MUL VL]
+	ldr	z3, [x2, #3, MUL VL]
+	ldr	z4, [x2, #4, MUL VL]
+	ldr	z5, [x2, #5, MUL VL]
+	ldr	z6, [x2, #6, MUL VL]
+	ldr	z7, [x2, #7, MUL VL]
+	ldr	z8, [x2, #8, MUL VL]
+	ldr	z9, [x2, #9, MUL VL]
+	ldr	z10, [x2, #10, MUL VL]
+	ldr	z11, [x2, #11, MUL VL]
+	ldr	z12, [x2, #12, MUL VL]
+	ldr	z13, [x2, #13, MUL VL]
+	ldr	z14, [x2, #14, MUL VL]
+	ldr	z15, [x2, #15, MUL VL]
+	ldr	z16, [x2, #16, MUL VL]
+	ldr	z17, [x2, #17, MUL VL]
+	ldr	z18, [x2, #18, MUL VL]
+	ldr	z19, [x2, #19, MUL VL]
+	ldr	z20, [x2, #20, MUL VL]
+	ldr	z21, [x2, #21, MUL VL]
+	ldr	z22, [x2, #22, MUL VL]
+	ldr	z23, [x2, #23, MUL VL]
+	ldr	z24, [x2, #24, MUL VL]
+	ldr	z25, [x2, #25, MUL VL]
+	ldr	z26, [x2, #26, MUL VL]
+	ldr	z27, [x2, #27, MUL VL]
+	ldr	z28, [x2, #28, MUL VL]
+	ldr	z29, [x2, #29, MUL VL]
+	ldr	z30, [x2, #30, MUL VL]
+	ldr	z31, [x2, #31, MUL VL]
+
+	// Only set a non-zero FFR, test patterns must be zero since the
+	// syscall should clear it - this lets us handle FA64.
+	ldr	x2, =ffr_in
+	ldr	p0, [x2]
+	ldr	x2, [x2, #0]
+	cbz	x2, 1f
+	wrffr	p0.b
+1:
+
+	ldr	x2, =p_in
+	ldr	p0, [x2, #0, MUL VL]
+	ldr	p1, [x2, #1, MUL VL]
+	ldr	p2, [x2, #2, MUL VL]
+	ldr	p3, [x2, #3, MUL VL]
+	ldr	p4, [x2, #4, MUL VL]
+	ldr	p5, [x2, #5, MUL VL]
+	ldr	p6, [x2, #6, MUL VL]
+	ldr	p7, [x2, #7, MUL VL]
+	ldr	p8, [x2, #8, MUL VL]
+	ldr	p9, [x2, #9, MUL VL]
+	ldr	p10, [x2, #10, MUL VL]
+	ldr	p11, [x2, #11, MUL VL]
+	ldr	p12, [x2, #12, MUL VL]
+	ldr	p13, [x2, #13, MUL VL]
+	ldr	p14, [x2, #14, MUL VL]
+	ldr	p15, [x2, #15, MUL VL]
+2:
+
+	// Do the syscall
+	svc	#0
+
+	// Save GPRs x8-x30
+	ldr	x2, =gpr_out
+	add	x2, x2, #64
+	stp	x8, x9, [x2], #16
+	stp	x10, x11, [x2], #16
+	stp	x12, x13, [x2], #16
+	stp	x14, x15, [x2], #16
+	stp	x16, x17, [x2], #16
+	stp	x18, x19, [x2], #16
+	stp	x20, x21, [x2], #16
+	stp	x22, x23, [x2], #16
+	stp	x24, x25, [x2], #16
+	stp	x26, x27, [x2], #16
+	stp	x28, x29, [x2], #16
+	str	x30, [x2]
+
+	// Restore x0 and x1 for feature checks
+	ldp	x0, x1, [sp, #16]
+
+	// Save FPSIMD state
+	ldr	x2, =fpr_out
+	stp	q0, q1, [x2]
+	stp	q2, q3, [x2, #16 * 2]
+	stp	q4, q5, [x2, #16 * 4]
+	stp	q6, q7, [x2, #16 * 6]
+	stp	q8, q9, [x2, #16 * 8]
+	stp	q10, q11, [x2, #16 * 10]
+	stp	q12, q13, [x2, #16 * 12]
+	stp	q14, q15, [x2, #16 * 14]
+	stp	q16, q17, [x2, #16 * 16]
+	stp	q18, q19, [x2, #16 * 18]
+	stp	q20, q21, [x2, #16 * 20]
+	stp	q22, q23, [x2, #16 * 22]
+	stp	q24, q25, [x2, #16 * 24]
+	stp	q26, q27, [x2, #16 * 26]
+	stp	q28, q29, [x2, #16 * 28]
+	stp	q30, q31, [x2, #16 * 30]
+
+	// Save SVCR if we're doing SME
+	cbz	x1, check_sve_out
+	mrs	x2, S3_3_C4_C2_2
+	adrp	x3, svcr_out
+	str	x2, [x3, :lo12:svcr_out]
+
+	// Save ZA if it's enabled - uses x12 as scratch due to SME STR
+	tbz	x2, #SVCR_ZA_SHIFT, check_sve_out
+	mov	w12, #0
+	ldr	x2, =za_out
+1:	_str_za 12, 2
+	add	x2, x2, x1
+	add	x12, x12, #1
+	cmp	x1, x12
+	bne	1b
+
+	// ZT0
+	mrs	x2, S3_0_C0_C4_5	// ID_AA64SMFR0_EL1
+	ubfx	x2, x2, #ID_AA64SMFR0_EL1_SMEver_SHIFT, \
+			#ID_AA64SMFR0_EL1_SMEver_WIDTH
+	cbz	x2, check_sve_out
+	adrp	x2, zt_out
+	add	x2, x2, :lo12:zt_out
+	_str_zt 2
+
+check_sve_out:
+	// Save the SVE state if we have some
+	cbz	x0, 1f
+
+	ldr	x2, =z_out
+	str	z0, [x2, #0, MUL VL]
+	str	z1, [x2, #1, MUL VL]
+	str	z2, [x2, #2, MUL VL]
+	str	z3, [x2, #3, MUL VL]
+	str	z4, [x2, #4, MUL VL]
+	str	z5, [x2, #5, MUL VL]
+	str	z6, [x2, #6, MUL VL]
+	str	z7, [x2, #7, MUL VL]
+	str	z8, [x2, #8, MUL VL]
+	str	z9, [x2, #9, MUL VL]
+	str	z10, [x2, #10, MUL VL]
+	str	z11, [x2, #11, MUL VL]
+	str	z12, [x2, #12, MUL VL]
+	str	z13, [x2, #13, MUL VL]
+	str	z14, [x2, #14, MUL VL]
+	str	z15, [x2, #15, MUL VL]
+	str	z16, [x2, #16, MUL VL]
+	str	z17, [x2, #17, MUL VL]
+	str	z18, [x2, #18, MUL VL]
+	str	z19, [x2, #19, MUL VL]
+	str	z20, [x2, #20, MUL VL]
+	str	z21, [x2, #21, MUL VL]
+	str	z22, [x2, #22, MUL VL]
+	str	z23, [x2, #23, MUL VL]
+	str	z24, [x2, #24, MUL VL]
+	str	z25, [x2, #25, MUL VL]
+	str	z26, [x2, #26, MUL VL]
+	str	z27, [x2, #27, MUL VL]
+	str	z28, [x2, #28, MUL VL]
+	str	z29, [x2, #29, MUL VL]
+	str	z30, [x2, #30, MUL VL]
+	str	z31, [x2, #31, MUL VL]
+
+	ldr	x2, =p_out
+	str	p0, [x2, #0, MUL VL]
+	str	p1, [x2, #1, MUL VL]
+	str	p2, [x2, #2, MUL VL]
+	str	p3, [x2, #3, MUL VL]
+	str	p4, [x2, #4, MUL VL]
+	str	p5, [x2, #5, MUL VL]
+	str	p6, [x2, #6, MUL VL]
+	str	p7, [x2, #7, MUL VL]
+	str	p8, [x2, #8, MUL VL]
+	str	p9, [x2, #9, MUL VL]
+	str	p10, [x2, #10, MUL VL]
+	str	p11, [x2, #11, MUL VL]
+	str	p12, [x2, #12, MUL VL]
+	str	p13, [x2, #13, MUL VL]
+	str	p14, [x2, #14, MUL VL]
+	str	p15, [x2, #15, MUL VL]
+
+	// Only save FFR if we wrote a value for SME
+	ldr	x2, =ffr_in
+	ldr	x2, [x2, #0]
+	cbz	x2, 1f
+	ldr	x2, =ffr_out
+	rdffr	p0.b
+	str	p0, [x2]
+1:
+
+	// Restore callee saved registers x19-x30
+	ldp	x19, x20, [sp, #32]
+	ldp	x21, x22, [sp, #48]
+	ldp	x23, x24, [sp, #64]
+	ldp	x25, x26, [sp, #80]
+	ldp	x27, x28, [sp, #96]
+	ldp	x29, x30, [sp], #112
+
+	// Clear SVCR if we were doing SME so future tests don't have ZA
+	cbz	x1, 1f
+	msr	S3_3_C4_C2_2, xzr
+1:
+
+	ret
diff --git a/tools/testing/selftests/arm64/abi/syscall-abi.c b/tools/testing/selftests/arm64/abi/syscall-abi.c
new file mode 100644
index 000000000000..b67e3e26fa6d
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/syscall-abi.c
@@ -0,0 +1,565 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 ARM Limited.
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <asm/hwcap.h>
+#include <asm/sigcontext.h>
+#include <asm/unistd.h>
+
+#include "kselftest.h"
+
+#include "syscall-abi.h"
+
+/*
+ * The kernel defines a much larger SVE_VQ_MAX than is expressable in
+ * the architecture, this creates a *lot* of overhead filling the
+ * buffers (especially ZA) on emulated platforms so use the actual
+ * architectural maximum instead.
+ */
+#define ARCH_SVE_VQ_MAX 16
+
+static int default_sme_vl;
+
+static int sve_vl_count;
+static unsigned int sve_vls[ARCH_SVE_VQ_MAX];
+static int sme_vl_count;
+static unsigned int sme_vls[ARCH_SVE_VQ_MAX];
+
+extern void do_syscall(int sve_vl, int sme_vl);
+
+static void fill_random(void *buf, size_t size)
+{
+	int i;
+	uint32_t *lbuf = buf;
+
+	/* random() returns a 32 bit number regardless of the size of long */
+	for (i = 0; i < size / sizeof(uint32_t); i++)
+		lbuf[i] = random();
+}
+
+/*
+ * We also repeat the test for several syscalls to try to expose different
+ * behaviour.
+ */
+static struct syscall_cfg {
+	int syscall_nr;
+	const char *name;
+} syscalls[] = {
+	{ __NR_getpid,		"getpid()" },
+	{ __NR_sched_yield,	"sched_yield()" },
+};
+
+#define NUM_GPR 31
+uint64_t gpr_in[NUM_GPR];
+uint64_t gpr_out[NUM_GPR];
+
+static void setup_gpr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		      uint64_t svcr)
+{
+	fill_random(gpr_in, sizeof(gpr_in));
+	gpr_in[8] = cfg->syscall_nr;
+	memset(gpr_out, 0, sizeof(gpr_out));
+}
+
+static int check_gpr(struct syscall_cfg *cfg, int sve_vl, int sme_vl, uint64_t svcr)
+{
+	int errors = 0;
+	int i;
+
+	/*
+	 * GPR x0-x7 may be clobbered, and all others should be preserved.
+	 */
+	for (i = 9; i < ARRAY_SIZE(gpr_in); i++) {
+		if (gpr_in[i] != gpr_out[i]) {
+			ksft_print_msg("%s SVE VL %d mismatch in GPR %d: %lx != %lx\n",
+				       cfg->name, sve_vl, i,
+				       gpr_in[i], gpr_out[i]);
+			errors++;
+		}
+	}
+
+	return errors;
+}
+
+#define NUM_FPR 32
+uint64_t fpr_in[NUM_FPR * 2];
+uint64_t fpr_out[NUM_FPR * 2];
+uint64_t fpr_zero[NUM_FPR * 2];
+
+static void setup_fpr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		      uint64_t svcr)
+{
+	fill_random(fpr_in, sizeof(fpr_in));
+	memset(fpr_out, 0, sizeof(fpr_out));
+}
+
+static int check_fpr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		     uint64_t svcr)
+{
+	int errors = 0;
+	int i;
+
+	if (!sve_vl && !(svcr & SVCR_SM_MASK)) {
+		for (i = 0; i < ARRAY_SIZE(fpr_in); i++) {
+			if (fpr_in[i] != fpr_out[i]) {
+				ksft_print_msg("%s Q%d/%d mismatch %lx != %lx\n",
+					       cfg->name,
+					       i / 2, i % 2,
+					       fpr_in[i], fpr_out[i]);
+				errors++;
+			}
+		}
+	}
+
+	/*
+	 * In streaming mode the whole register set should be cleared
+	 * by the transition out of streaming mode.
+	 */
+	if (svcr & SVCR_SM_MASK) {
+		if (memcmp(fpr_zero, fpr_out, sizeof(fpr_out)) != 0) {
+			ksft_print_msg("%s FPSIMD registers non-zero exiting SM\n",
+				       cfg->name);
+			errors++;
+		}
+	}
+
+	return errors;
+}
+
+#define SVE_Z_SHARED_BYTES (128 / 8)
+
+static uint8_t z_zero[__SVE_ZREG_SIZE(ARCH_SVE_VQ_MAX)];
+uint8_t z_in[SVE_NUM_ZREGS * __SVE_ZREG_SIZE(ARCH_SVE_VQ_MAX)];
+uint8_t z_out[SVE_NUM_ZREGS * __SVE_ZREG_SIZE(ARCH_SVE_VQ_MAX)];
+
+static void setup_z(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	fill_random(z_in, sizeof(z_in));
+	fill_random(z_out, sizeof(z_out));
+}
+
+static int check_z(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		   uint64_t svcr)
+{
+	size_t reg_size = sve_vl;
+	int errors = 0;
+	int i;
+
+	if (!sve_vl)
+		return 0;
+
+	for (i = 0; i < SVE_NUM_ZREGS; i++) {
+		uint8_t *in = &z_in[reg_size * i];
+		uint8_t *out = &z_out[reg_size * i];
+
+		if (svcr & SVCR_SM_MASK) {
+			/*
+			 * In streaming mode the whole register should
+			 * be cleared by the transition out of
+			 * streaming mode.
+			 */
+			if (memcmp(z_zero, out, reg_size) != 0) {
+				ksft_print_msg("%s SVE VL %d Z%d non-zero\n",
+					       cfg->name, sve_vl, i);
+				errors++;
+			}
+		} else {
+			/*
+			 * For standard SVE the low 128 bits should be
+			 * preserved and any additional bits cleared.
+			 */
+			if (memcmp(in, out, SVE_Z_SHARED_BYTES) != 0) {
+				ksft_print_msg("%s SVE VL %d Z%d low 128 bits changed\n",
+					       cfg->name, sve_vl, i);
+				errors++;
+			}
+
+			if (reg_size > SVE_Z_SHARED_BYTES &&
+			    (memcmp(z_zero, out + SVE_Z_SHARED_BYTES,
+				    reg_size - SVE_Z_SHARED_BYTES) != 0)) {
+				ksft_print_msg("%s SVE VL %d Z%d high bits non-zero\n",
+					       cfg->name, sve_vl, i);
+				errors++;
+			}
+		}
+	}
+
+	return errors;
+}
+
+uint8_t p_in[SVE_NUM_PREGS * __SVE_PREG_SIZE(ARCH_SVE_VQ_MAX)];
+uint8_t p_out[SVE_NUM_PREGS * __SVE_PREG_SIZE(ARCH_SVE_VQ_MAX)];
+
+static void setup_p(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	fill_random(p_in, sizeof(p_in));
+	fill_random(p_out, sizeof(p_out));
+}
+
+static int check_p(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		   uint64_t svcr)
+{
+	size_t reg_size = sve_vq_from_vl(sve_vl) * 2; /* 1 bit per VL byte */
+
+	int errors = 0;
+	int i;
+
+	if (!sve_vl)
+		return 0;
+
+	/* After a syscall the P registers should be zeroed */
+	for (i = 0; i < SVE_NUM_PREGS * reg_size; i++)
+		if (p_out[i])
+			errors++;
+	if (errors)
+		ksft_print_msg("%s SVE VL %d predicate registers non-zero\n",
+			       cfg->name, sve_vl);
+
+	return errors;
+}
+
+uint8_t ffr_in[__SVE_PREG_SIZE(ARCH_SVE_VQ_MAX)];
+uint8_t ffr_out[__SVE_PREG_SIZE(ARCH_SVE_VQ_MAX)];
+
+static void setup_ffr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		      uint64_t svcr)
+{
+	/*
+	 * If we are in streaming mode and do not have FA64 then FFR
+	 * is unavailable.
+	 */
+	if ((svcr & SVCR_SM_MASK) &&
+	    !(getauxval(AT_HWCAP2) & HWCAP2_SME_FA64)) {
+		memset(&ffr_in, 0, sizeof(ffr_in));
+		return;
+	}
+
+	/*
+	 * It is only valid to set a contiguous set of bits starting
+	 * at 0.  For now since we're expecting this to be cleared by
+	 * a syscall just set all bits.
+	 */
+	memset(ffr_in, 0xff, sizeof(ffr_in));
+	fill_random(ffr_out, sizeof(ffr_out));
+}
+
+static int check_ffr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		     uint64_t svcr)
+{
+	size_t reg_size = sve_vq_from_vl(sve_vl) * 2;  /* 1 bit per VL byte */
+	int errors = 0;
+	int i;
+
+	if (!sve_vl)
+		return 0;
+
+	if ((svcr & SVCR_SM_MASK) &&
+	    !(getauxval(AT_HWCAP2) & HWCAP2_SME_FA64))
+		return 0;
+
+	/* After a syscall FFR should be zeroed */
+	for (i = 0; i < reg_size; i++)
+		if (ffr_out[i])
+			errors++;
+	if (errors)
+		ksft_print_msg("%s SVE VL %d FFR non-zero\n",
+			       cfg->name, sve_vl);
+
+	return errors;
+}
+
+uint64_t svcr_in, svcr_out;
+
+static void setup_svcr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	svcr_in = svcr;
+}
+
+static int check_svcr(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		      uint64_t svcr)
+{
+	int errors = 0;
+
+	if (svcr_out & SVCR_SM_MASK) {
+		ksft_print_msg("%s Still in SM, SVCR %lx\n",
+			       cfg->name, svcr_out);
+		errors++;
+	}
+
+	if ((svcr_in & SVCR_ZA_MASK) != (svcr_out & SVCR_ZA_MASK)) {
+		ksft_print_msg("%s PSTATE.ZA changed, SVCR %lx != %lx\n",
+			       cfg->name, svcr_in, svcr_out);
+		errors++;
+	}
+
+	return errors;
+}
+
+uint8_t za_in[ZA_SIG_REGS_SIZE(ARCH_SVE_VQ_MAX)];
+uint8_t za_out[ZA_SIG_REGS_SIZE(ARCH_SVE_VQ_MAX)];
+
+static void setup_za(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		     uint64_t svcr)
+{
+	fill_random(za_in, sizeof(za_in));
+	memset(za_out, 0, sizeof(za_out));
+}
+
+static int check_za(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	size_t reg_size = sme_vl * sme_vl;
+	int errors = 0;
+
+	if (!(svcr & SVCR_ZA_MASK))
+		return 0;
+
+	if (memcmp(za_in, za_out, reg_size) != 0) {
+		ksft_print_msg("SME VL %d ZA does not match\n", sme_vl);
+		errors++;
+	}
+
+	return errors;
+}
+
+uint8_t zt_in[ZT_SIG_REG_BYTES] __attribute__((aligned(16)));
+uint8_t zt_out[ZT_SIG_REG_BYTES] __attribute__((aligned(16)));
+
+static void setup_zt(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		     uint64_t svcr)
+{
+	fill_random(zt_in, sizeof(zt_in));
+	memset(zt_out, 0, sizeof(zt_out));
+}
+
+static int check_zt(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	int errors = 0;
+
+	if (!(getauxval(AT_HWCAP2) & HWCAP2_SME2))
+		return 0;
+
+	if (!(svcr & SVCR_ZA_MASK))
+		return 0;
+
+	if (memcmp(zt_in, zt_out, sizeof(zt_in)) != 0) {
+		ksft_print_msg("SME VL %d ZT does not match\n", sme_vl);
+		errors++;
+	}
+
+	return errors;
+}
+
+typedef void (*setup_fn)(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+			 uint64_t svcr);
+typedef int (*check_fn)(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+			uint64_t svcr);
+
+/*
+ * Each set of registers has a setup function which is called before
+ * the syscall to fill values in a global variable for loading by the
+ * test code and a check function which validates that the results are
+ * as expected.  Vector lengths are passed everywhere, a vector length
+ * of 0 should be treated as do not test.
+ */
+static struct {
+	setup_fn setup;
+	check_fn check;
+} regset[] = {
+	{ setup_gpr, check_gpr },
+	{ setup_fpr, check_fpr },
+	{ setup_z, check_z },
+	{ setup_p, check_p },
+	{ setup_ffr, check_ffr },
+	{ setup_svcr, check_svcr },
+	{ setup_za, check_za },
+	{ setup_zt, check_zt },
+};
+
+static bool do_test(struct syscall_cfg *cfg, int sve_vl, int sme_vl,
+		    uint64_t svcr)
+{
+	int errors = 0;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(regset); i++)
+		regset[i].setup(cfg, sve_vl, sme_vl, svcr);
+
+	do_syscall(sve_vl, sme_vl);
+
+	for (i = 0; i < ARRAY_SIZE(regset); i++)
+		errors += regset[i].check(cfg, sve_vl, sme_vl, svcr);
+
+	return errors == 0;
+}
+
+static void test_one_syscall(struct syscall_cfg *cfg)
+{
+	int sve, sme;
+	int ret;
+
+	/* FPSIMD only case */
+	ksft_test_result(do_test(cfg, 0, default_sme_vl, 0),
+			 "%s FPSIMD\n", cfg->name);
+
+	for (sve = 0; sve < sve_vl_count; sve++) {
+		ret = prctl(PR_SVE_SET_VL, sve_vls[sve]);
+		if (ret == -1)
+			ksft_exit_fail_msg("PR_SVE_SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		ksft_test_result(do_test(cfg, sve_vls[sve], default_sme_vl, 0),
+				 "%s SVE VL %d\n", cfg->name, sve_vls[sve]);
+
+		for (sme = 0; sme < sme_vl_count; sme++) {
+			ret = prctl(PR_SME_SET_VL, sme_vls[sme]);
+			if (ret == -1)
+				ksft_exit_fail_msg("PR_SME_SET_VL failed: %s (%d)\n",
+						   strerror(errno), errno);
+
+			ksft_test_result(do_test(cfg, sve_vls[sve],
+						 sme_vls[sme],
+						 SVCR_ZA_MASK | SVCR_SM_MASK),
+					 "%s SVE VL %d/SME VL %d SM+ZA\n",
+					 cfg->name, sve_vls[sve],
+					 sme_vls[sme]);
+			ksft_test_result(do_test(cfg, sve_vls[sve],
+						 sme_vls[sme], SVCR_SM_MASK),
+					 "%s SVE VL %d/SME VL %d SM\n",
+					 cfg->name, sve_vls[sve],
+					 sme_vls[sme]);
+			ksft_test_result(do_test(cfg, sve_vls[sve],
+						 sme_vls[sme], SVCR_ZA_MASK),
+					 "%s SVE VL %d/SME VL %d ZA\n",
+					 cfg->name, sve_vls[sve],
+					 sme_vls[sme]);
+		}
+	}
+
+	for (sme = 0; sme < sme_vl_count; sme++) {
+		ret = prctl(PR_SME_SET_VL, sme_vls[sme]);
+		if (ret == -1)
+			ksft_exit_fail_msg("PR_SME_SET_VL failed: %s (%d)\n",
+						   strerror(errno), errno);
+
+		ksft_test_result(do_test(cfg, 0, sme_vls[sme],
+					 SVCR_ZA_MASK | SVCR_SM_MASK),
+				 "%s SME VL %d SM+ZA\n",
+				 cfg->name, sme_vls[sme]);
+		ksft_test_result(do_test(cfg, 0, sme_vls[sme], SVCR_SM_MASK),
+				 "%s SME VL %d SM\n",
+				 cfg->name, sme_vls[sme]);
+		ksft_test_result(do_test(cfg, 0, sme_vls[sme], SVCR_ZA_MASK),
+				 "%s SME VL %d ZA\n",
+				 cfg->name, sme_vls[sme]);
+	}
+}
+
+void sve_count_vls(void)
+{
+	unsigned int vq;
+	int vl;
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_SVE))
+		return;
+
+	/*
+	 * Enumerate up to ARCH_SVE_VQ_MAX vector lengths
+	 */
+	for (vq = ARCH_SVE_VQ_MAX; vq > 0; vq /= 2) {
+		vl = prctl(PR_SVE_SET_VL, vq * 16);
+		if (vl == -1)
+			ksft_exit_fail_msg("PR_SVE_SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		vl &= PR_SVE_VL_LEN_MASK;
+
+		if (vq != sve_vq_from_vl(vl))
+			vq = sve_vq_from_vl(vl);
+
+		sve_vls[sve_vl_count++] = vl;
+	}
+}
+
+void sme_count_vls(void)
+{
+	unsigned int vq;
+	int vl;
+
+	if (!(getauxval(AT_HWCAP2) & HWCAP2_SME))
+		return;
+
+	/*
+	 * Enumerate up to ARCH_SVE_VQ_MAX vector lengths
+	 */
+	for (vq = ARCH_SVE_VQ_MAX; vq > 0; vq /= 2) {
+		vl = prctl(PR_SME_SET_VL, vq * 16);
+		if (vl == -1)
+			ksft_exit_fail_msg("PR_SME_SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		vl &= PR_SME_VL_LEN_MASK;
+
+		/* Found lowest VL */
+		if (sve_vq_from_vl(vl) > vq)
+			break;
+
+		if (vq != sve_vq_from_vl(vl))
+			vq = sve_vq_from_vl(vl);
+
+		sme_vls[sme_vl_count++] = vl;
+	}
+
+	/* Ensure we configure a SME VL, used to flag if SVCR is set */
+	default_sme_vl = sme_vls[0];
+}
+
+int main(void)
+{
+	int i;
+	int tests = 1;  /* FPSIMD */
+	int sme_ver;
+
+	srandom(getpid());
+
+	ksft_print_header();
+
+	sve_count_vls();
+	sme_count_vls();
+
+	tests += sve_vl_count;
+	tests += sme_vl_count * 3;
+	tests += (sve_vl_count * sme_vl_count) * 3;
+	ksft_set_plan(ARRAY_SIZE(syscalls) * tests);
+
+	if (getauxval(AT_HWCAP2) & HWCAP2_SME2)
+		sme_ver = 2;
+	else
+		sme_ver = 1;
+
+	if (getauxval(AT_HWCAP2) & HWCAP2_SME_FA64)
+		ksft_print_msg("SME%d with FA64\n", sme_ver);
+	else if (getauxval(AT_HWCAP2) & HWCAP2_SME)
+		ksft_print_msg("SME%d without FA64\n", sme_ver);
+
+	for (i = 0; i < ARRAY_SIZE(syscalls); i++)
+		test_one_syscall(&syscalls[i]);
+
+	ksft_print_cnts();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/abi/syscall-abi.h b/tools/testing/selftests/arm64/abi/syscall-abi.h
new file mode 100644
index 000000000000..bda5a87ad381
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/syscall-abi.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021 ARM Limited.
+ */
+
+#ifndef SYSCALL_ABI_H
+#define SYSCALL_ABI_H
+
+#define SVCR_ZA_MASK		2
+#define SVCR_SM_MASK		1
+
+#define SVCR_ZA_SHIFT		1
+#define SVCR_SM_SHIFT		0
+
+#endif
diff --git a/tools/testing/selftests/arm64/abi/tpidr2.c b/tools/testing/selftests/arm64/abi/tpidr2.c
new file mode 100644
index 000000000000..1703543fb7c7
--- /dev/null
+++ b/tools/testing/selftests/arm64/abi/tpidr2.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include "kselftest.h"
+
+#define SYS_TPIDR2 "S3_3_C13_C0_5"
+
+#define EXPECTED_TESTS 5
+
+static void set_tpidr2(uint64_t val)
+{
+	asm volatile (
+		"msr	" SYS_TPIDR2 ", %0\n"
+		:
+		: "r"(val)
+		: "cc");
+}
+
+static uint64_t get_tpidr2(void)
+{
+	uint64_t val;
+
+	asm volatile (
+		"mrs	%0, " SYS_TPIDR2 "\n"
+		: "=r"(val)
+		:
+		: "cc");
+
+	return val;
+}
+
+/* Processes should start with TPIDR2 == 0 */
+static int default_value(void)
+{
+	return get_tpidr2() == 0;
+}
+
+/* If we set TPIDR2 we should read that value */
+static int write_read(void)
+{
+	set_tpidr2(getpid());
+
+	return getpid() == get_tpidr2();
+}
+
+/* If we set a value we should read the same value after scheduling out */
+static int write_sleep_read(void)
+{
+	set_tpidr2(getpid());
+
+	msleep(100);
+
+	return getpid() == get_tpidr2();
+}
+
+/*
+ * If we fork the value in the parent should be unchanged and the
+ * child should start with the same value and be able to set its own
+ * value.
+ */
+static int write_fork_read(void)
+{
+	pid_t newpid, waiting, oldpid;
+	int status;
+
+	set_tpidr2(getpid());
+
+	oldpid = getpid();
+	newpid = fork();
+	if (newpid == 0) {
+		/* In child */
+		if (get_tpidr2() != oldpid) {
+			ksft_print_msg("TPIDR2 changed in child: %llx\n",
+				       get_tpidr2());
+			exit(0);
+		}
+
+		set_tpidr2(getpid());
+		if (get_tpidr2() == getpid()) {
+			exit(1);
+		} else {
+			ksft_print_msg("Failed to set TPIDR2 in child\n");
+			exit(0);
+		}
+	}
+	if (newpid < 0) {
+		ksft_print_msg("fork() failed: %d\n", newpid);
+		return 0;
+	}
+
+	for (;;) {
+		waiting = waitpid(newpid, &status, 0);
+
+		if (waiting < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_print_msg("waitpid() failed: %d\n", errno);
+			return 0;
+		}
+		if (waiting != newpid) {
+			ksft_print_msg("waitpid() returned wrong PID: %d != %d\n",
+				       waiting, newpid);
+			return 0;
+		}
+
+		if (!WIFEXITED(status)) {
+			ksft_print_msg("child did not exit\n");
+			return 0;
+		}
+
+		if (getpid() != get_tpidr2()) {
+			ksft_print_msg("TPIDR2 corrupted in parent\n");
+			return 0;
+		}
+
+		return WEXITSTATUS(status);
+	}
+}
+
+/*
+ * sys_clone() has a lot of per architecture variation so just define
+ * it here rather than adding it to nolibc, plus the raw API is a
+ * little more convenient for this test.
+ */
+static int sys_clone(unsigned long clone_flags, unsigned long newsp,
+		     int *parent_tidptr, unsigned long tls,
+		     int *child_tidptr)
+{
+	return my_syscall5(__NR_clone, clone_flags, newsp, parent_tidptr, tls,
+			   child_tidptr);
+}
+
+#define __STACK_SIZE (8 * 1024 * 1024)
+
+/*
+ * If we clone with CLONE_VM then the value in the parent should
+ * be unchanged and the child should start with zero and be able to
+ * set its own value.
+ */
+static int write_clone_read(void)
+{
+	int parent_tid, child_tid;
+	pid_t parent, waiting;
+	int ret, status;
+	void *stack;
+
+	parent = getpid();
+	set_tpidr2(parent);
+
+	stack = malloc(__STACK_SIZE);
+	if (!stack) {
+		ksft_print_msg("malloc() failed\n");
+		return 0;
+	}
+
+	ret = sys_clone(CLONE_VM, (unsigned long)stack + __STACK_SIZE,
+			&parent_tid, 0, &child_tid);
+	if (ret == -1) {
+		ksft_print_msg("clone() failed: %d\n", errno);
+		return 0;
+	}
+
+	if (ret == 0) {
+		/* In child */
+		if (get_tpidr2() != 0) {
+			ksft_print_msg("TPIDR2 non-zero in child: %llx\n",
+				       get_tpidr2());
+			exit(0);
+		}
+
+		if (gettid() == 0)
+			ksft_print_msg("Child TID==0\n");
+		set_tpidr2(gettid());
+		if (get_tpidr2() == gettid()) {
+			exit(1);
+		} else {
+			ksft_print_msg("Failed to set TPIDR2 in child\n");
+			exit(0);
+		}
+	}
+
+	for (;;) {
+		waiting = waitpid(ret, &status, __WCLONE);
+
+		if (waiting < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_print_msg("waitpid() failed: %d\n", errno);
+			return 0;
+		}
+		if (waiting != ret) {
+			ksft_print_msg("waitpid() returned wrong PID %d\n",
+				       waiting);
+			return 0;
+		}
+
+		if (!WIFEXITED(status)) {
+			ksft_print_msg("child did not exit\n");
+			return 0;
+		}
+
+		if (parent != get_tpidr2()) {
+			ksft_print_msg("TPIDR2 corrupted in parent\n");
+			return 0;
+		}
+
+		return WEXITSTATUS(status);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int ret;
+
+	ksft_print_header();
+	ksft_set_plan(5);
+
+	ksft_print_msg("PID: %d\n", getpid());
+
+	/*
+	 * This test is run with nolibc which doesn't support hwcap and
+	 * it's probably disproportionate to implement so instead check
+	 * for the default vector length configuration in /proc.
+	 */
+	ret = open("/proc/sys/abi/sme_default_vector_length", O_RDONLY, 0);
+	if (ret >= 0) {
+		ksft_test_result(default_value(), "default_value\n");
+		ksft_test_result(write_read(), "write_read\n");
+		ksft_test_result(write_sleep_read(), "write_sleep_read\n");
+		ksft_test_result(write_fork_read(), "write_fork_read\n");
+		ksft_test_result(write_clone_read(), "write_clone_read\n");
+
+	} else {
+		ksft_print_msg("SME support not present\n");
+
+		ksft_test_result_skip("default_value\n");
+		ksft_test_result_skip("write_read\n");
+		ksft_test_result_skip("write_sleep_read\n");
+		ksft_test_result_skip("write_fork_read\n");
+		ksft_test_result_skip("write_clone_read\n");
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/arm64/bti/.gitignore b/tools/testing/selftests/arm64/bti/.gitignore
new file mode 100644
index 000000000000..73869fabada4
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/.gitignore
@@ -0,0 +1,2 @@
+btitest
+nobtitest
diff --git a/tools/testing/selftests/arm64/bti/Makefile b/tools/testing/selftests/arm64/bti/Makefile
new file mode 100644
index 000000000000..05e4ee523a53
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/Makefile
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_PROGS := btitest nobtitest
+
+# These tests are built as freestanding binaries since otherwise BTI
+# support in ld.so is required which is not currently widespread; when
+# it is available it will still be useful to test this separately as the
+# cases for statically linked and dynamically lined binaries are
+# slightly different.
+
+CFLAGS_NOBTI = -mbranch-protection=none -DBTI=0
+CFLAGS_BTI = -mbranch-protection=standard -DBTI=1
+
+CFLAGS_COMMON = -ffreestanding -Wall -Wextra $(CFLAGS)
+
+BTI_CC_COMMAND = $(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -c -o $@ $<
+NOBTI_CC_COMMAND = $(CC) $(CFLAGS_NOBTI) $(CFLAGS_COMMON) -c -o $@ $<
+
+$(OUTPUT)/%-bti.o: %.c
+	$(BTI_CC_COMMAND)
+
+$(OUTPUT)/%-bti.o: %.S
+	$(BTI_CC_COMMAND)
+
+$(OUTPUT)/%-nobti.o: %.c
+	$(NOBTI_CC_COMMAND)
+
+$(OUTPUT)/%-nobti.o: %.S
+	$(NOBTI_CC_COMMAND)
+
+BTI_OBJS =                                      \
+	$(OUTPUT)/test-bti.o                    \
+	$(OUTPUT)/signal-bti.o                  \
+	$(OUTPUT)/start-bti.o                   \
+	$(OUTPUT)/syscall-bti.o                 \
+	$(OUTPUT)/system-bti.o                  \
+	$(OUTPUT)/teststubs-bti.o               \
+	$(OUTPUT)/trampoline-bti.o
+$(OUTPUT)/btitest: $(BTI_OBJS)
+	$(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -nostdlib -static -o $@ $^
+
+NOBTI_OBJS =                                    \
+	$(OUTPUT)/test-nobti.o                  \
+	$(OUTPUT)/signal-nobti.o                \
+	$(OUTPUT)/start-nobti.o                 \
+	$(OUTPUT)/syscall-nobti.o               \
+	$(OUTPUT)/system-nobti.o                \
+	$(OUTPUT)/teststubs-nobti.o             \
+	$(OUTPUT)/trampoline-nobti.o
+$(OUTPUT)/nobtitest: $(NOBTI_OBJS)
+	$(CC) $(CFLAGS_BTI) $(CFLAGS_COMMON) -nostdlib -static -o $@ $^
+
+# Including KSFT lib.mk here will also mangle the TEST_GEN_PROGS list
+# to account for any OUTPUT target-dirs optionally provided by
+# the toplevel makefile
+include ../../lib.mk
diff --git a/tools/testing/selftests/arm64/bti/assembler.h b/tools/testing/selftests/arm64/bti/assembler.h
new file mode 100644
index 000000000000..141cdcbf0b8f
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/assembler.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#ifndef ASSEMBLER_H
+#define ASSEMBLER_H
+
+#define NT_GNU_PROPERTY_TYPE_0	5
+#define GNU_PROPERTY_AARCH64_FEATURE_1_AND	0xc0000000
+
+/* Bits for GNU_PROPERTY_AARCH64_FEATURE_1_BTI */
+#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI	(1U << 0)
+#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC	(1U << 1)
+
+.macro startfn name:req
+	.globl \name
+\name:
+	.macro endfn
+		.size \name, . - \name
+		.type \name, @function
+		.purgem endfn
+	.endm
+.endm
+
+.macro emit_aarch64_feature_1_and
+	.pushsection .note.gnu.property, "a"
+	.align	3
+	.long	2f - 1f
+	.long	6f - 3f
+	.long	NT_GNU_PROPERTY_TYPE_0
+1:	.string	"GNU"
+2:
+	.align	3
+3:	.long	GNU_PROPERTY_AARCH64_FEATURE_1_AND
+	.long	5f - 4f
+4:
+#if BTI
+	.long	GNU_PROPERTY_AARCH64_FEATURE_1_PAC | \
+		GNU_PROPERTY_AARCH64_FEATURE_1_BTI
+#else
+	.long	0
+#endif
+5:
+	.align	3
+6:
+	.popsection
+.endm
+
+.macro paciasp
+	hint	0x19
+.endm
+
+.macro autiasp
+	hint	0x1d
+.endm
+
+.macro __bti_
+	hint	0x20
+.endm
+
+.macro __bti_c
+	hint	0x22
+.endm
+
+.macro __bti_j
+	hint	0x24
+.endm
+
+.macro __bti_jc
+	hint	0x26
+.endm
+
+.macro bti what=
+	__bti_\what
+.endm
+
+#endif /* ! ASSEMBLER_H */
diff --git a/tools/testing/selftests/arm64/bti/btitest.h b/tools/testing/selftests/arm64/bti/btitest.h
new file mode 100644
index 000000000000..2aff9b10336e
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/btitest.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#ifndef BTITEST_H
+#define BTITEST_H
+
+/* Trampolines for calling the test stubs: */
+void call_using_br_x0(void (*)(void));
+void call_using_br_x16(void (*)(void));
+void call_using_blr(void (*)(void));
+
+/* Test stubs: */
+void nohint_func(void);
+void bti_none_func(void);
+void bti_c_func(void);
+void bti_j_func(void);
+void bti_jc_func(void);
+void paciasp_func(void);
+
+#endif /* !BTITEST_H */
diff --git a/tools/testing/selftests/arm64/bti/signal.c b/tools/testing/selftests/arm64/bti/signal.c
new file mode 100644
index 000000000000..f3fd29b91141
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/signal.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "system.h"
+#include "signal.h"
+
+int sigemptyset(sigset_t *s)
+{
+	unsigned int i;
+
+	for (i = 0; i < _NSIG_WORDS; ++i)
+		s->sig[i] = 0;
+
+	return 0;
+}
+
+int sigaddset(sigset_t *s, int n)
+{
+	if (n < 1 || n > _NSIG)
+		return -EINVAL;
+
+	s->sig[(n - 1) / _NSIG_BPW] |= 1UL << (n - 1) % _NSIG_BPW;
+	return 0;
+}
+
+int sigaction(int n, struct sigaction *sa, const struct sigaction *old)
+{
+	return syscall(__NR_rt_sigaction, n, sa, old, sizeof(sa->sa_mask));
+}
+
+int sigprocmask(int how, const sigset_t *mask, sigset_t *old)
+{
+	return syscall(__NR_rt_sigprocmask, how, mask, old, sizeof(*mask));
+}
diff --git a/tools/testing/selftests/arm64/bti/signal.h b/tools/testing/selftests/arm64/bti/signal.h
new file mode 100644
index 000000000000..103457dc880e
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/signal.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#ifndef SIGNAL_H
+#define SIGNAL_H
+
+#include <linux/signal.h>
+
+#include "system.h"
+
+typedef __sighandler_t sighandler_t;
+
+int sigemptyset(sigset_t *s);
+int sigaddset(sigset_t *s, int n);
+int sigaction(int n, struct sigaction *sa, const struct sigaction *old);
+int sigprocmask(int how, const sigset_t *mask, sigset_t *old);
+
+#endif /* ! SIGNAL_H */
diff --git a/tools/testing/selftests/arm64/bti/start.S b/tools/testing/selftests/arm64/bti/start.S
new file mode 100644
index 000000000000..831f952e0572
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/start.S
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "assembler.h"
+
+startfn _start
+	mov	x0, sp
+	b	start
+endfn
+
+emit_aarch64_feature_1_and
diff --git a/tools/testing/selftests/arm64/bti/syscall.S b/tools/testing/selftests/arm64/bti/syscall.S
new file mode 100644
index 000000000000..8dde8b6f3db1
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/syscall.S
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "assembler.h"
+
+startfn syscall
+	bti	c
+	mov	w8, w0
+	mov	x0, x1
+	mov	x1, x2
+	mov	x2, x3
+	mov	x3, x4
+	mov	x4, x5
+	mov	x5, x6
+	mov	x6, x7
+	svc	#0
+	ret
+endfn
+
+emit_aarch64_feature_1_and
diff --git a/tools/testing/selftests/arm64/bti/system.c b/tools/testing/selftests/arm64/bti/system.c
new file mode 100644
index 000000000000..93d772b00bfe
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/system.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "system.h"
+
+#include <asm/unistd.h>
+
+void __noreturn exit(int n)
+{
+	syscall(__NR_exit, n);
+	unreachable();
+}
+
+ssize_t write(int fd, const void *buf, size_t size)
+{
+	return syscall(__NR_write, fd, buf, size);
+}
diff --git a/tools/testing/selftests/arm64/bti/system.h b/tools/testing/selftests/arm64/bti/system.h
new file mode 100644
index 000000000000..2e9ee1284a0c
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/system.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#ifndef SYSTEM_H
+#define SYSTEM_H
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+
+typedef __kernel_size_t size_t;
+typedef __kernel_ssize_t ssize_t;
+
+#include <linux/errno.h>
+#include <linux/compiler.h>
+
+#include <asm/hwcap.h>
+#include <asm/ptrace.h>
+#include <asm/unistd.h>
+
+long syscall(int nr, ...);
+
+void __noreturn exit(int n);
+ssize_t write(int fd, const void *buf, size_t size);
+
+#endif /* ! SYSTEM_H */
diff --git a/tools/testing/selftests/arm64/bti/test.c b/tools/testing/selftests/arm64/bti/test.c
new file mode 100644
index 000000000000..28a8e8a28a84
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/test.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019,2021  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "system.h"
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <linux/errno.h>
+#include <linux/auxvec.h>
+#include <linux/signal.h>
+#include <asm/sigcontext.h>
+#include <asm/ucontext.h>
+
+typedef struct ucontext ucontext_t;
+
+#include "btitest.h"
+#include "signal.h"
+
+#define EXPECTED_TESTS 18
+
+static volatile unsigned int test_num = 1;
+static unsigned int test_passed;
+static unsigned int test_failed;
+static unsigned int test_skipped;
+
+static void fdputs(int fd, const char *str)
+{
+	size_t len = 0;
+	const char *p = str;
+
+	while (*p++)
+		++len;
+
+	write(fd, str, len);
+}
+
+static void putstr(const char *str)
+{
+	fdputs(1, str);
+}
+
+static void putnum(unsigned int num)
+{
+	char c;
+
+	if (num / 10)
+		putnum(num / 10);
+
+	c = '0' + (num % 10);
+	write(1, &c, 1);
+}
+
+#define puttestname(test_name, trampoline_name) do {	\
+	putstr(test_name);				\
+	putstr("/");					\
+	putstr(trampoline_name);			\
+} while (0)
+
+void print_summary(void)
+{
+	putstr("# Totals: pass:");
+	putnum(test_passed);
+	putstr(" fail:");
+	putnum(test_failed);
+	putstr(" xfail:0 xpass:0 skip:");
+	putnum(test_skipped);
+	putstr(" error:0\n");
+}
+
+static const char *volatile current_test_name;
+static const char *volatile current_trampoline_name;
+static volatile int sigill_expected, sigill_received;
+
+static void handler(int n, siginfo_t *si __always_unused,
+		    void *uc_ __always_unused)
+{
+	ucontext_t *uc = uc_;
+
+	putstr("# \t[SIGILL in ");
+	puttestname(current_test_name, current_trampoline_name);
+	putstr(", BTYPE=");
+	write(1, &"00011011"[((uc->uc_mcontext.pstate & PSR_BTYPE_MASK)
+			      >> PSR_BTYPE_SHIFT) * 2], 2);
+	if (!sigill_expected) {
+		putstr("]\n");
+		putstr("not ok ");
+		putnum(test_num);
+		putstr(" ");
+		puttestname(current_test_name, current_trampoline_name);
+		putstr("(unexpected SIGILL)\n");
+		print_summary();
+		exit(128 + n);
+	}
+
+	putstr(" (expected)]\n");
+	sigill_received = 1;
+	/* zap BTYPE so that resuming the faulting code will work */
+	uc->uc_mcontext.pstate &= ~PSR_BTYPE_MASK;
+}
+
+/* Does the system have BTI? */
+static bool have_bti;
+
+static void __do_test(void (*trampoline)(void (*)(void)),
+		      void (*fn)(void),
+		      const char *trampoline_name,
+		      const char *name,
+		      int expect_sigill)
+{
+	/*
+	 * Branch Target exceptions should only happen for BTI
+	 * binaries running on a system with BTI:
+	 */
+	if (!BTI || !have_bti)
+		expect_sigill = 0;
+
+	sigill_expected = expect_sigill;
+	sigill_received = 0;
+	current_test_name = name;
+	current_trampoline_name = trampoline_name;
+
+	trampoline(fn);
+
+	if (expect_sigill && !sigill_received) {
+		putstr("not ok ");
+		test_failed++;
+	} else {
+		putstr("ok ");
+		test_passed++;
+	}
+	putnum(test_num++);
+	putstr(" ");
+	puttestname(name, trampoline_name);
+	putstr("\n");
+}
+
+#define do_test(expect_sigill_br_x0,					\
+		expect_sigill_br_x16,					\
+		expect_sigill_blr,					\
+		name)							\
+do {									\
+	__do_test(call_using_br_x0, name, "call_using_br_x0", #name,	\
+		  expect_sigill_br_x0);					\
+	__do_test(call_using_br_x16, name, "call_using_br_x16", #name,	\
+		  expect_sigill_br_x16);				\
+	__do_test(call_using_blr, name, "call_using_blr", #name,	\
+		  expect_sigill_blr);					\
+} while (0)
+
+void start(int *argcp)
+{
+	struct sigaction sa;
+	void *const *p;
+	const struct auxv_entry {
+		unsigned long type;
+		unsigned long val;
+	} *auxv;
+	unsigned long hwcap = 0, hwcap2 = 0;
+
+	putstr("TAP version 13\n");
+	putstr("1..");
+	putnum(EXPECTED_TESTS);
+	putstr("\n");
+
+	/* Gross hack for finding AT_HWCAP2 from the initial process stack: */
+	p = (void *const *)argcp + 1 + *argcp + 1; /* start of environment */
+	/* step over environment */
+	while (*p++)
+		;
+	for (auxv = (const struct auxv_entry *)p; auxv->type != AT_NULL; ++auxv) {
+		switch (auxv->type) {
+		case AT_HWCAP:
+			hwcap = auxv->val;
+			break;
+		case AT_HWCAP2:
+			hwcap2 = auxv->val;
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (hwcap & HWCAP_PACA)
+		putstr("# HWCAP_PACA present\n");
+	else
+		putstr("# HWCAP_PACA not present\n");
+
+	if (hwcap2 & HWCAP2_BTI) {
+		putstr("# HWCAP2_BTI present\n");
+		if (!(hwcap & HWCAP_PACA))
+			putstr("# Bad hardware?  Expect problems.\n");
+		have_bti = true;
+	} else {
+		putstr("# HWCAP2_BTI not present\n");
+		have_bti = false;
+	}
+
+	putstr("# Test binary");
+	if (!BTI)
+		putstr(" not");
+	putstr(" built for BTI\n");
+
+	sa.sa_handler = (sighandler_t)(void *)handler;
+	sa.sa_flags = SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	sigaction(SIGILL, &sa, NULL);
+	sigaddset(&sa.sa_mask, SIGILL);
+	sigprocmask(SIG_UNBLOCK, &sa.sa_mask, NULL);
+
+	do_test(1, 1, 1, nohint_func);
+	do_test(1, 1, 1, bti_none_func);
+	do_test(1, 0, 0, bti_c_func);
+	do_test(0, 0, 1, bti_j_func);
+	do_test(0, 0, 0, bti_jc_func);
+	do_test(1, 0, 0, paciasp_func);
+
+	print_summary();
+
+	if (test_num - 1 != EXPECTED_TESTS)
+		putstr("# WARNING - EXPECTED TEST COUNT WRONG\n");
+
+	if (test_failed)
+		exit(1);
+	else
+		exit(0);
+}
diff --git a/tools/testing/selftests/arm64/bti/teststubs.S b/tools/testing/selftests/arm64/bti/teststubs.S
new file mode 100644
index 000000000000..b62c8c35f67e
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/teststubs.S
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "assembler.h"
+
+startfn bti_none_func
+	bti
+	ret
+endfn
+
+startfn bti_c_func
+	bti	c
+	ret
+endfn
+
+startfn bti_j_func
+	bti	j
+	ret
+endfn
+
+startfn bti_jc_func
+	bti	jc
+	ret
+endfn
+
+startfn paciasp_func
+	paciasp
+	autiasp
+	ret
+endfn
+
+startfn nohint_func
+	ret
+endfn
+
+emit_aarch64_feature_1_and
diff --git a/tools/testing/selftests/arm64/bti/trampoline.S b/tools/testing/selftests/arm64/bti/trampoline.S
new file mode 100644
index 000000000000..09beb3f361f1
--- /dev/null
+++ b/tools/testing/selftests/arm64/bti/trampoline.S
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019  Arm Limited
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+
+#include "assembler.h"
+
+startfn call_using_br_x0
+	bti	c
+	br	x0
+endfn
+
+startfn call_using_br_x16
+	bti	c
+	mov	x16, x0
+	br	x16
+endfn
+
+startfn call_using_blr
+	paciasp
+	stp	x29, x30, [sp, #-16]!
+	blr	x0
+	ldp	x29, x30, [sp], #16
+	autiasp
+	ret
+endfn
+
+emit_aarch64_feature_1_and
diff --git a/tools/testing/selftests/arm64/fp/.gitignore b/tools/testing/selftests/arm64/fp/.gitignore
new file mode 100644
index 000000000000..8362e7ec35ad
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/.gitignore
@@ -0,0 +1,18 @@
+fp-pidbench
+fp-ptrace
+fp-stress
+fpsimd-test
+kernel-test
+rdvl-sme
+rdvl-sve
+sve-probe-vls
+sve-ptrace
+sve-test
+ssve-test
+vec-syscfg
+vlset
+za-fork
+za-ptrace
+za-test
+zt-ptrace
+zt-test
diff --git a/tools/testing/selftests/arm64/fp/Makefile b/tools/testing/selftests/arm64/fp/Makefile
new file mode 100644
index 000000000000..d171021e4cdd
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/Makefile
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# A proper top_srcdir is needed by KSFT(lib.mk)
+top_srcdir = $(realpath ../../../../../)
+
+CFLAGS += $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := \
+	fp-ptrace \
+	fp-stress \
+	sve-ptrace sve-probe-vls \
+	vec-syscfg \
+	za-fork za-ptrace
+TEST_GEN_PROGS_EXTENDED := fp-pidbench fpsimd-test \
+	kernel-test \
+	rdvl-sme rdvl-sve \
+	sve-test \
+	ssve-test \
+	za-test \
+	zt-ptrace \
+	zt-test \
+	vlset
+TEST_PROGS_EXTENDED := fpsimd-stress sve-stress ssve-stress za-stress
+
+EXTRA_CLEAN += $(OUTPUT)/asm-utils.o $(OUTPUT)/rdvl.o $(OUTPUT)/za-fork-asm.o
+
+# Build with nolibc to avoid effects due to libc's clone() support
+$(OUTPUT)/fp-pidbench: fp-pidbench.S $(OUTPUT)/asm-utils.o
+	$(CC) -nostdlib $^ -o $@
+$(OUTPUT)/fp-ptrace: fp-ptrace.c fp-ptrace-asm.S
+$(OUTPUT)/fpsimd-test: fpsimd-test.S $(OUTPUT)/asm-utils.o
+	$(CC) -nostdlib $^ -o $@
+$(OUTPUT)/rdvl-sve: rdvl-sve.c $(OUTPUT)/rdvl.o
+$(OUTPUT)/rdvl-sme: rdvl-sme.c $(OUTPUT)/rdvl.o
+$(OUTPUT)/sve-ptrace: sve-ptrace.c
+$(OUTPUT)/sve-probe-vls: sve-probe-vls.c $(OUTPUT)/rdvl.o
+$(OUTPUT)/sve-test: sve-test.S $(OUTPUT)/asm-utils.o
+	$(CC) -nostdlib $^ -o $@
+$(OUTPUT)/ssve-test: sve-test.S $(OUTPUT)/asm-utils.o
+	$(CC) -DSSVE -nostdlib $^ -o $@
+$(OUTPUT)/vec-syscfg: vec-syscfg.c $(OUTPUT)/rdvl.o
+$(OUTPUT)/vlset: vlset.c
+$(OUTPUT)/za-fork: za-fork.c $(OUTPUT)/za-fork-asm.o
+	$(CC) -fno-asynchronous-unwind-tables -fno-ident -s -Os -nostdlib \
+		-include ../../../../include/nolibc/nolibc.h -I../..\
+		-static -ffreestanding -Wall $^ -o $@
+$(OUTPUT)/za-ptrace: za-ptrace.c
+$(OUTPUT)/za-test: za-test.S $(OUTPUT)/asm-utils.o
+	$(CC) -nostdlib $^ -o $@
+$(OUTPUT)/zt-ptrace: zt-ptrace.c
+$(OUTPUT)/zt-test: zt-test.S $(OUTPUT)/asm-utils.o
+	$(CC) -nostdlib $^ -o $@
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/arm64/fp/README b/tools/testing/selftests/arm64/fp/README
new file mode 100644
index 000000000000..03e3dad865d8
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/README
@@ -0,0 +1,100 @@
+This directory contains a mix of tests integrated with kselftest and
+standalone stress tests.
+
+kselftest tests
+===============
+
+sve-probe-vls - Checks the SVE vector length enumeration interface
+sve-ptrace - Checks the SVE ptrace interface
+
+Running the non-kselftest tests
+===============================
+
+sve-stress performs an SVE context switch stress test, as described
+below.
+
+(The fpsimd-stress test works the same way; just substitute "fpsimd" for
+"sve" in the following commands.)
+
+
+The test runs until killed by the user.
+
+If no context switch error was detected, you will see output such as
+the following:
+
+$ ./sve-stress
+(wait for some time)
+^C
+Vector length:        512 bits
+PID:    1573
+Terminated by signal 15, no error, iterations=9467, signals=1014
+Vector length:  512 bits
+PID:    1575
+Terminated by signal 15, no error, iterations=9448, signals=1028
+Vector length:  512 bits
+PID:    1577
+Terminated by signal 15, no error, iterations=9436, signals=1039
+Vector length:  512 bits
+PID:    1579
+Terminated by signal 15, no error, iterations=9421, signals=1039
+Vector length:  512 bits
+PID:    1581
+Terminated by signal 15, no error, iterations=9403, signals=1039
+Vector length:  512 bits
+PID:    1583
+Terminated by signal 15, no error, iterations=9385, signals=1036
+Vector length:  512 bits
+PID:    1585
+Terminated by signal 15, no error, iterations=9376, signals=1039
+Vector length:  512 bits
+PID:    1587
+Terminated by signal 15, no error, iterations=9361, signals=1039
+Vector length:  512 bits
+PID:    1589
+Terminated by signal 15, no error, iterations=9350, signals=1039
+
+
+If an error was detected, details of the mismatch will be printed
+instead of "no error".
+
+Ideally, the test should be allowed to run for many minutes or hours
+to maximise test coverage.
+
+
+KVM stress testing
+==================
+
+To try to reproduce the bugs that we have been observing, sve-stress
+should be run in parallel in two KVM guests, while simultaneously
+running on the host.
+
+1) Start 2 guests, using the following command for each:
+
+$ lkvm run --console=virtio -pconsole=hvc0 --sve Image
+
+(Depending on the hardware GIC implementation, you may also need
+--irqchip=gicv3.  New kvmtool defaults to that if appropriate, but I
+can't remember whether my branch is new enough for that.  Try without
+the option first.)
+
+Kvmtool occupies the terminal until you kill it (Ctrl+A x),
+or until the guest terminates.  It is therefore recommended to run
+each instance in separate terminal (use screen or ssh etc.)  This
+allows multiple guests to be run in parallel while running other
+commands on the host.
+
+Within the guest, the host filesystem is accessible, mounted on /host.
+
+2) Run the sve-stress on *each* guest with the Vector-Length set to 32:
+guest$ ./vlset --inherit 32 ./sve-stress
+
+3) Run the sve-stress on the host with the maximum Vector-Length:
+host$ ./vlset --inherit --max ./sve-stress
+
+
+Again, the test should be allowed to run for many minutes or hours to
+maximise test coverage.
+
+If no error is detected, you will see output from each sve-stress
+instance similar to that illustrated above; otherwise details of the
+observed mismatches will be printed.
diff --git a/tools/testing/selftests/arm64/fp/TODO b/tools/testing/selftests/arm64/fp/TODO
new file mode 100644
index 000000000000..44004e53da33
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/TODO
@@ -0,0 +1,7 @@
+- Test unsupported values in the ABIs.
+- More coverage for ptrace:
+ - Get/set of FFR.
+ - Ensure ptraced processes actually see the register state visible through
+   the ptrace interface.
+ - Big endian.
+- Test PR_SVE_VL_INHERIT after a double fork.
diff --git a/tools/testing/selftests/arm64/fp/asm-offsets.h b/tools/testing/selftests/arm64/fp/asm-offsets.h
new file mode 100644
index 000000000000..757b2fd75dd7
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/asm-offsets.h
@@ -0,0 +1,12 @@
+#define sa_sz 32
+#define sa_flags 8
+#define sa_handler 0
+#define sa_mask_sz 8
+#define SIGUSR1 10
+#define SIGUSR2 12
+#define SIGTERM 15
+#define SIGINT 2
+#define SIGABRT 6
+#define SA_NODEFER 1073741824
+#define SA_SIGINFO 4
+#define ucontext_regs 184
diff --git a/tools/testing/selftests/arm64/fp/asm-utils.S b/tools/testing/selftests/arm64/fp/asm-utils.S
new file mode 100644
index 000000000000..4b9728efc18d
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/asm-utils.S
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015-2021 ARM Limited.
+// Original author: Dave Martin <Dave.Martin@arm.com>
+//
+// Utility functions for assembly code.
+
+#include <asm/unistd.h>
+#include "assembler.h"
+
+// Print a single character x0 to stdout
+// Clobbers x0-x2,x8
+function putc
+	str	x0, [sp, #-16]!
+
+	mov	x0, #1			// STDOUT_FILENO
+	mov	x1, sp
+	mov	x2, #1
+	mov	x8, #__NR_write
+	svc	#0
+
+	add	sp, sp, #16
+	ret
+endfunction
+.globl	putc
+	
+// Print a NUL-terminated string starting at address x0 to stdout
+// Clobbers x0-x3,x8
+function puts
+	mov	x1, x0
+
+	mov	x2, #0
+0:	ldrb	w3, [x0], #1
+	cbz	w3, 1f
+	add	x2, x2, #1
+	b	0b
+
+1:	mov	w0, #1			// STDOUT_FILENO
+	mov	x8, #__NR_write
+	svc	#0
+
+	ret
+endfunction
+.globl	puts
+
+// Print an unsigned decimal number x0 to stdout
+// Clobbers x0-x4,x8
+function putdec
+	mov	x1, sp
+	str	x30, [sp, #-32]!	// Result can't be > 20 digits
+
+	mov	x2, #0
+	strb	w2, [x1, #-1]!		// Write the NUL terminator
+
+	mov	x2, #10
+0:	udiv	x3, x0, x2		// div-mod loop to generate the digits
+	msub	x0, x3, x2, x0
+	add	w0, w0, #'0'
+	strb	w0, [x1, #-1]!
+	mov	x0, x3
+	cbnz	x3, 0b
+
+	ldrb	w0, [x1]
+	cbnz	w0, 1f
+	mov	w0, #'0'		// Print "0" for 0, not ""
+	strb	w0, [x1, #-1]!
+
+1:	mov	x0, x1
+	bl	puts
+
+	ldr	x30, [sp], #32
+	ret
+endfunction
+.globl	putdec
+
+// Print an unsigned decimal number x0 to stdout, followed by a newline
+// Clobbers x0-x5,x8
+function putdecn
+	mov	x5, x30
+
+	bl	putdec
+	mov	x0, #'\n'
+	bl	putc
+
+	ret	x5
+endfunction
+.globl	putdecn
+
+// Clobbers x0-x3,x8
+function puthexb
+	str	x30, [sp, #-0x10]!
+
+	mov	w3, w0
+	lsr	w0, w0, #4
+	bl	puthexnibble
+	mov	w0, w3
+
+	ldr	x30, [sp], #0x10
+	// fall through to puthexnibble
+endfunction
+.globl	puthexb
+
+// Clobbers x0-x2,x8
+function puthexnibble
+	and	w0, w0, #0xf
+	cmp	w0, #10
+	blo	1f
+	add	w0, w0, #'a' - ('9' + 1)
+1:	add	w0, w0, #'0'
+	b	putc
+endfunction
+.globl	puthexnibble
+
+// x0=data in, x1=size in, clobbers x0-x5,x8
+function dumphex
+	str	x30, [sp, #-0x10]!
+
+	mov	x4, x0
+	mov	x5, x1
+
+0:	subs	x5, x5, #1
+	b.lo	1f
+	ldrb	w0, [x4], #1
+	bl	puthexb
+	b	0b
+
+1:	ldr	x30, [sp], #0x10
+	ret
+endfunction
+.globl	dumphex
+
+	// Trivial memory copy: copy x2 bytes, starting at address x1, to address x0.
+// Clobbers x0-x3
+function memcpy
+	cmp	x2, #0
+	b.eq	1f
+0:	ldrb	w3, [x1], #1
+	strb	w3, [x0], #1
+	subs	x2, x2, #1
+	b.ne	0b
+1:	ret
+endfunction
+.globl	memcpy
+
+// Fill x1 bytes starting at x0 with 0xae (for canary purposes)
+// Clobbers x1, x2.
+function memfill_ae
+	mov	w2, #0xae
+	b	memfill
+endfunction
+.globl	memfill_ae
+	
+// Fill x1 bytes starting at x0 with 0.
+// Clobbers x1, x2.
+function memclr
+	mov	w2, #0
+endfunction
+.globl	memclr
+	// fall through to memfill
+
+// Trivial memory fill: fill x1 bytes starting at address x0 with byte w2
+// Clobbers x1
+function memfill
+	cmp	x1, #0
+	b.eq	1f
+
+0:	strb	w2, [x0], #1
+	subs	x1, x1, #1
+	b.ne	0b
+
+1:	ret
+endfunction
+.globl	memfill
diff --git a/tools/testing/selftests/arm64/fp/assembler.h b/tools/testing/selftests/arm64/fp/assembler.h
new file mode 100644
index 000000000000..1fc46a5642c2
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/assembler.h
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015-2019 ARM Limited.
+// Original author: Dave Martin <Dave.Martin@arm.com>
+
+#ifndef ASSEMBLER_H
+#define ASSEMBLER_H
+
+.macro __for from:req, to:req
+	.if (\from) == (\to)
+		_for__body %\from
+	.else
+		__for \from, %(\from) + ((\to) - (\from)) / 2
+		__for %(\from) + ((\to) - (\from)) / 2 + 1, \to
+	.endif
+.endm
+
+.macro _for var:req, from:req, to:req, insn:vararg
+	.macro _for__body \var:req
+		.noaltmacro
+		\insn
+		.altmacro
+	.endm
+
+	.altmacro
+	__for \from, \to
+	.noaltmacro
+
+	.purgem _for__body
+.endm
+
+.macro function name
+	.macro endfunction
+		.type \name, @function
+		.purgem endfunction
+	.endm
+\name:
+.endm
+
+.macro define_accessor name, num, insn
+	.macro \name\()_entry n
+		\insn \n, 1
+		ret
+	.endm
+
+function \name
+	adr	x2, .L__accessor_tbl\@
+	add	x2, x2, x0, lsl #3
+	br	x2
+
+.L__accessor_tbl\@:
+	_for x, 0, (\num) - 1, \name\()_entry \x
+endfunction
+
+	.purgem \name\()_entry
+.endm
+
+// Utility macro to print a literal string
+// Clobbers x0-x4,x8
+.macro puts string
+	.pushsection .rodata.str1.1, "aMS", @progbits, 1
+.L__puts_literal\@: .string "\string"
+	.popsection
+
+	ldr	x0, =.L__puts_literal\@
+	bl	puts
+.endm
+
+#define PR_SET_SHADOW_STACK_STATUS      75
+# define PR_SHADOW_STACK_ENABLE         (1UL << 0)
+
+.macro enable_gcs
+	// Run with GCS
+	mov	x0, PR_SET_SHADOW_STACK_STATUS
+	mov	x1, PR_SHADOW_STACK_ENABLE
+	mov	x2, xzr
+	mov	x3, xzr
+	mov	x4, xzr
+	mov	x5, xzr
+	mov	x8, #__NR_prctl
+	svc	#0
+.endm
+
+#endif /* ! ASSEMBLER_H */
diff --git a/tools/testing/selftests/arm64/fp/fp-pidbench.S b/tools/testing/selftests/arm64/fp/fp-pidbench.S
new file mode 100644
index 000000000000..73830f6bc99b
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fp-pidbench.S
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021 ARM Limited.
+// Original author: Mark Brown <broonie@kernel.org>
+//
+// Trivial syscall overhead benchmark.
+//
+// This is implemented in asm to ensure that we don't have any issues with
+// system libraries using instructions that disrupt the test.
+
+#include <asm/unistd.h>
+#include "assembler.h"
+
+.arch_extension sve
+
+.macro test_loop per_loop
+	mov	x10, x20
+	mov	x8, #__NR_getpid
+	mrs	x11, CNTVCT_EL0
+1:
+	\per_loop
+	svc	#0
+	sub	x10, x10, #1
+	cbnz	x10, 1b
+
+	mrs	x12, CNTVCT_EL0
+	sub	x0, x12, x11
+	bl	putdec
+	puts	"\n"
+.endm
+
+// Main program entry point
+.globl _start
+function _start
+	puts	"Iterations per test: "
+	mov	x20, #10000
+	lsl	x20, x20, #8
+	mov	x0, x20
+	bl	putdec
+	puts	"\n"
+
+	// Test having never used SVE
+	puts	"No SVE: "
+	test_loop
+
+	// Check for SVE support - should use hwcap but that's hard in asm
+	mrs	x0, ID_AA64PFR0_EL1
+	ubfx	x0, x0, #32, #4
+	cbnz	x0, 1f
+	puts	"System does not support SVE\n"
+	b	out
+1:
+
+	// Execute a SVE instruction
+	puts	"SVE VL: "
+	rdvl	x0, #8
+	bl	putdec
+	puts	"\n"
+
+	puts	"SVE used once: "
+	test_loop
+
+	// Use SVE per syscall
+	puts	"SVE used per syscall: "
+	test_loop "rdvl x0, #8"
+
+	//  And we're done
+out:
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace-asm.S b/tools/testing/selftests/arm64/fp/fp-ptrace-asm.S
new file mode 100644
index 000000000000..82c3ab70e1cf
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fp-ptrace-asm.S
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021-3 ARM Limited.
+//
+// Assembly portion of the FP ptrace test
+
+//
+// Load values from memory into registers, break on a breakpoint, then
+// break on a further breakpoint
+//
+
+#include "fp-ptrace.h"
+#include "sme-inst.h"
+
+.arch_extension sve
+
+// Load and save register values with pauses for ptrace
+//
+// x0 - HAVE_ flags indicating which features are in use
+
+.globl load_and_save
+load_and_save:
+	stp	x11, x12, [sp, #-0x10]!
+
+	// This should be redundant in the SVE case
+	ldr	x7, =v_in
+	ldp	q0, q1, [x7]
+	ldp	q2, q3, [x7, #16 * 2]
+	ldp	q4, q5, [x7, #16 * 4]
+	ldp	q6, q7, [x7, #16 * 6]
+	ldp	q8, q9, [x7, #16 * 8]
+	ldp	q10, q11, [x7, #16 * 10]
+	ldp	q12, q13, [x7, #16 * 12]
+	ldp	q14, q15, [x7, #16 * 14]
+	ldp	q16, q17, [x7, #16 * 16]
+	ldp	q18, q19, [x7, #16 * 18]
+	ldp	q20, q21, [x7, #16 * 20]
+	ldp	q22, q23, [x7, #16 * 22]
+	ldp	q24, q25, [x7, #16 * 24]
+	ldp	q26, q27, [x7, #16 * 26]
+	ldp	q28, q29, [x7, #16 * 28]
+	ldp	q30, q31, [x7, #16 * 30]
+
+	// SME?
+	tbz	x0, #HAVE_SME_SHIFT, check_sve_in
+
+	adrp	x7, svcr_in
+	ldr	x7, [x7, :lo12:svcr_in]
+	// SVCR is 0 by default, avoid triggering SME if not in use
+	cbz	x7, check_sve_in
+	msr	S3_3_C4_C2_2, x7
+
+	// ZA?
+	tbz	x7, #SVCR_ZA_SHIFT, check_sm_in
+	rdsvl	11, 1
+	mov	w12, #0
+	ldr	x6, =za_in
+1:	_ldr_za 12, 6
+	add	x6, x6, x11
+	add	x12, x12, #1
+	cmp	x11, x12
+	bne	1b
+
+	// ZT?
+	tbz	x0, #HAVE_SME2_SHIFT, check_sm_in
+	adrp	x6, zt_in
+	add	x6, x6, :lo12:zt_in
+	_ldr_zt 6
+
+	// In streaming mode?
+check_sm_in:
+	tbz	x7, #SVCR_SM_SHIFT, check_sve_in
+
+	// Load FFR if we have FA64
+	ubfx	x4, x0, #HAVE_FA64_SHIFT, #1
+	b	load_sve
+
+	// SVE?
+check_sve_in:
+	tbz	x0, #HAVE_SVE_SHIFT, check_fpmr_in
+	mov	x4, #1
+
+load_sve:
+	ldr	x7, =z_in
+	ldr	z0, [x7, #0, MUL VL]
+	ldr	z1, [x7, #1, MUL VL]
+	ldr	z2, [x7, #2, MUL VL]
+	ldr	z3, [x7, #3, MUL VL]
+	ldr	z4, [x7, #4, MUL VL]
+	ldr	z5, [x7, #5, MUL VL]
+	ldr	z6, [x7, #6, MUL VL]
+	ldr	z7, [x7, #7, MUL VL]
+	ldr	z8, [x7, #8, MUL VL]
+	ldr	z9, [x7, #9, MUL VL]
+	ldr	z10, [x7, #10, MUL VL]
+	ldr	z11, [x7, #11, MUL VL]
+	ldr	z12, [x7, #12, MUL VL]
+	ldr	z13, [x7, #13, MUL VL]
+	ldr	z14, [x7, #14, MUL VL]
+	ldr	z15, [x7, #15, MUL VL]
+	ldr	z16, [x7, #16, MUL VL]
+	ldr	z17, [x7, #17, MUL VL]
+	ldr	z18, [x7, #18, MUL VL]
+	ldr	z19, [x7, #19, MUL VL]
+	ldr	z20, [x7, #20, MUL VL]
+	ldr	z21, [x7, #21, MUL VL]
+	ldr	z22, [x7, #22, MUL VL]
+	ldr	z23, [x7, #23, MUL VL]
+	ldr	z24, [x7, #24, MUL VL]
+	ldr	z25, [x7, #25, MUL VL]
+	ldr	z26, [x7, #26, MUL VL]
+	ldr	z27, [x7, #27, MUL VL]
+	ldr	z28, [x7, #28, MUL VL]
+	ldr	z29, [x7, #29, MUL VL]
+	ldr	z30, [x7, #30, MUL VL]
+	ldr	z31, [x7, #31, MUL VL]
+
+	// FFR is not present in base SME
+	cbz	x4, 1f
+	ldr	x7, =ffr_in
+	ldr	p0, [x7]
+	ldr	x7, [x7, #0]
+	cbz	x7, 1f
+	wrffr	p0.b
+1:
+
+	ldr	x7, =p_in
+	ldr	p0, [x7, #0, MUL VL]
+	ldr	p1, [x7, #1, MUL VL]
+	ldr	p2, [x7, #2, MUL VL]
+	ldr	p3, [x7, #3, MUL VL]
+	ldr	p4, [x7, #4, MUL VL]
+	ldr	p5, [x7, #5, MUL VL]
+	ldr	p6, [x7, #6, MUL VL]
+	ldr	p7, [x7, #7, MUL VL]
+	ldr	p8, [x7, #8, MUL VL]
+	ldr	p9, [x7, #9, MUL VL]
+	ldr	p10, [x7, #10, MUL VL]
+	ldr	p11, [x7, #11, MUL VL]
+	ldr	p12, [x7, #12, MUL VL]
+	ldr	p13, [x7, #13, MUL VL]
+	ldr	p14, [x7, #14, MUL VL]
+	ldr	p15, [x7, #15, MUL VL]
+
+	// This has to come after we set PSTATE.SM
+check_fpmr_in:
+	tbz	x0, #HAVE_FPMR_SHIFT, wait_for_writes
+	adrp	x7, fpmr_in
+	ldr	x7, [x7, :lo12:fpmr_in]
+	msr	REG_FPMR, x7
+
+wait_for_writes:
+	// Wait for the parent
+	brk #0
+
+	// Save values
+	ldr	x7, =v_out
+	stp	q0, q1, [x7]
+	stp	q2, q3, [x7, #16 * 2]
+	stp	q4, q5, [x7, #16 * 4]
+	stp	q6, q7, [x7, #16 * 6]
+	stp	q8, q9, [x7, #16 * 8]
+	stp	q10, q11, [x7, #16 * 10]
+	stp	q12, q13, [x7, #16 * 12]
+	stp	q14, q15, [x7, #16 * 14]
+	stp	q16, q17, [x7, #16 * 16]
+	stp	q18, q19, [x7, #16 * 18]
+	stp	q20, q21, [x7, #16 * 20]
+	stp	q22, q23, [x7, #16 * 22]
+	stp	q24, q25, [x7, #16 * 24]
+	stp	q26, q27, [x7, #16 * 26]
+	stp	q28, q29, [x7, #16 * 28]
+	stp	q30, q31, [x7, #16 * 30]
+
+	tbz	x0, #HAVE_FPMR_SHIFT, check_sme_out
+	mrs	x7, REG_FPMR
+	adrp	x6, fpmr_out
+	str	x7, [x6, :lo12:fpmr_out]
+
+check_sme_out:
+	tbz	x0, #HAVE_SME_SHIFT, check_sve_out
+
+	rdsvl	11, 1
+	adrp	x6, sme_vl_out
+	str	x11, [x6, :lo12:sme_vl_out]
+
+	mrs	x7, S3_3_C4_C2_2
+	adrp	x6, svcr_out
+	str	x7, [x6, :lo12:svcr_out]
+
+	// ZA?
+	tbz	x7, #SVCR_ZA_SHIFT, check_sm_out
+	mov	w12, #0
+	ldr	x6, =za_out
+1:	_str_za 12, 6
+	add	x6, x6, x11
+	add	x12, x12, #1
+	cmp	x11, x12
+	bne	1b
+
+	// ZT?
+	tbz	x0, #HAVE_SME2_SHIFT, check_sm_out
+	adrp	x6, zt_out
+	add	x6, x6, :lo12:zt_out
+	_str_zt 6
+
+	// In streaming mode?
+check_sm_out:
+	tbz	x7, #SVCR_SM_SHIFT, check_sve_out
+
+	// Do we have FA64 and FFR?
+	ubfx	x4, x0, #HAVE_FA64_SHIFT, #1
+	b	read_sve
+
+	// SVE?
+check_sve_out:
+	tbz	x0, #HAVE_SVE_SHIFT, wait_for_reads
+	mov	x4, #1
+
+	rdvl	x7, #1
+	adrp	x6, sve_vl_out
+	str	x7, [x6, :lo12:sve_vl_out]
+
+read_sve:
+	ldr	x7, =z_out
+	str	z0, [x7, #0, MUL VL]
+	str	z1, [x7, #1, MUL VL]
+	str	z2, [x7, #2, MUL VL]
+	str	z3, [x7, #3, MUL VL]
+	str	z4, [x7, #4, MUL VL]
+	str	z5, [x7, #5, MUL VL]
+	str	z6, [x7, #6, MUL VL]
+	str	z7, [x7, #7, MUL VL]
+	str	z8, [x7, #8, MUL VL]
+	str	z9, [x7, #9, MUL VL]
+	str	z10, [x7, #10, MUL VL]
+	str	z11, [x7, #11, MUL VL]
+	str	z12, [x7, #12, MUL VL]
+	str	z13, [x7, #13, MUL VL]
+	str	z14, [x7, #14, MUL VL]
+	str	z15, [x7, #15, MUL VL]
+	str	z16, [x7, #16, MUL VL]
+	str	z17, [x7, #17, MUL VL]
+	str	z18, [x7, #18, MUL VL]
+	str	z19, [x7, #19, MUL VL]
+	str	z20, [x7, #20, MUL VL]
+	str	z21, [x7, #21, MUL VL]
+	str	z22, [x7, #22, MUL VL]
+	str	z23, [x7, #23, MUL VL]
+	str	z24, [x7, #24, MUL VL]
+	str	z25, [x7, #25, MUL VL]
+	str	z26, [x7, #26, MUL VL]
+	str	z27, [x7, #27, MUL VL]
+	str	z28, [x7, #28, MUL VL]
+	str	z29, [x7, #29, MUL VL]
+	str	z30, [x7, #30, MUL VL]
+	str	z31, [x7, #31, MUL VL]
+
+	ldr	x7, =p_out
+	str	p0, [x7, #0, MUL VL]
+	str	p1, [x7, #1, MUL VL]
+	str	p2, [x7, #2, MUL VL]
+	str	p3, [x7, #3, MUL VL]
+	str	p4, [x7, #4, MUL VL]
+	str	p5, [x7, #5, MUL VL]
+	str	p6, [x7, #6, MUL VL]
+	str	p7, [x7, #7, MUL VL]
+	str	p8, [x7, #8, MUL VL]
+	str	p9, [x7, #9, MUL VL]
+	str	p10, [x7, #10, MUL VL]
+	str	p11, [x7, #11, MUL VL]
+	str	p12, [x7, #12, MUL VL]
+	str	p13, [x7, #13, MUL VL]
+	str	p14, [x7, #14, MUL VL]
+	str	p15, [x7, #15, MUL VL]
+
+	// Only save FFR if it exists
+	cbz	x4, wait_for_reads
+	ldr	x7, =ffr_out
+	rdffr	p0.b
+	str	p0, [x7]
+
+wait_for_reads:
+	// Wait for the parent
+	brk #0
+
+	// Ensure we don't leave ourselves in streaming mode
+	tbz	x0, #HAVE_SME_SHIFT, out
+	msr	S3_3_C4_C2_2, xzr
+
+out:
+	ldp	x11, x12, [sp, #-0x10]
+	ret
diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace.c b/tools/testing/selftests/arm64/fp/fp-ptrace.c
new file mode 100644
index 000000000000..22c584b78be5
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fp-ptrace.c
@@ -0,0 +1,1692 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023 ARM Limited.
+ * Original author: Mark Brown <broonie@kernel.org>
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+
+#include <linux/kernel.h>
+
+#include <asm/sigcontext.h>
+#include <asm/sve_context.h>
+#include <asm/ptrace.h>
+
+#include "kselftest.h"
+
+#include "fp-ptrace.h"
+
+#include <linux/bits.h>
+
+#define FPMR_LSCALE2_MASK                               GENMASK(37, 32)
+#define FPMR_NSCALE_MASK                                GENMASK(31, 24)
+#define FPMR_LSCALE_MASK                                GENMASK(22, 16)
+#define FPMR_OSC_MASK                                   GENMASK(15, 15)
+#define FPMR_OSM_MASK                                   GENMASK(14, 14)
+
+/* <linux/elf.h> and <sys/auxv.h> don't like each other, so: */
+#ifndef NT_ARM_SVE
+#define NT_ARM_SVE 0x405
+#endif
+
+#ifndef NT_ARM_SSVE
+#define NT_ARM_SSVE 0x40b
+#endif
+
+#ifndef NT_ARM_ZA
+#define NT_ARM_ZA 0x40c
+#endif
+
+#ifndef NT_ARM_ZT
+#define NT_ARM_ZT 0x40d
+#endif
+
+#ifndef NT_ARM_FPMR
+#define NT_ARM_FPMR 0x40e
+#endif
+
+#define ARCH_VQ_MAX 256
+
+/* VL 128..2048 in powers of 2 */
+#define MAX_NUM_VLS 5
+
+/*
+ * FPMR bits we can set without doing feature checks to see if values
+ * are valid.
+ */
+#define FPMR_SAFE_BITS (FPMR_LSCALE2_MASK | FPMR_NSCALE_MASK | \
+			FPMR_LSCALE_MASK | FPMR_OSC_MASK | FPMR_OSM_MASK)
+
+#define NUM_FPR 32
+__uint128_t v_in[NUM_FPR];
+__uint128_t v_expected[NUM_FPR];
+__uint128_t v_out[NUM_FPR];
+
+char z_in[__SVE_ZREGS_SIZE(ARCH_VQ_MAX)];
+char z_expected[__SVE_ZREGS_SIZE(ARCH_VQ_MAX)];
+char z_out[__SVE_ZREGS_SIZE(ARCH_VQ_MAX)];
+
+char p_in[__SVE_PREGS_SIZE(ARCH_VQ_MAX)];
+char p_expected[__SVE_PREGS_SIZE(ARCH_VQ_MAX)];
+char p_out[__SVE_PREGS_SIZE(ARCH_VQ_MAX)];
+
+char ffr_in[__SVE_PREG_SIZE(ARCH_VQ_MAX)];
+char ffr_expected[__SVE_PREG_SIZE(ARCH_VQ_MAX)];
+char ffr_out[__SVE_PREG_SIZE(ARCH_VQ_MAX)];
+
+char za_in[ZA_SIG_REGS_SIZE(ARCH_VQ_MAX)];
+char za_expected[ZA_SIG_REGS_SIZE(ARCH_VQ_MAX)];
+char za_out[ZA_SIG_REGS_SIZE(ARCH_VQ_MAX)];
+
+char zt_in[ZT_SIG_REG_BYTES];
+char zt_expected[ZT_SIG_REG_BYTES];
+char zt_out[ZT_SIG_REG_BYTES];
+
+uint64_t fpmr_in, fpmr_expected, fpmr_out;
+
+uint64_t sve_vl_out;
+uint64_t sme_vl_out;
+uint64_t svcr_in, svcr_expected, svcr_out;
+
+void load_and_save(int flags);
+
+static bool got_alarm;
+
+static void handle_alarm(int sig, siginfo_t *info, void *context)
+{
+	got_alarm = true;
+}
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+static __uint128_t arm64_cpu_to_le128(__uint128_t x)
+{
+	u64 a = swab64(x);
+	u64 b = swab64(x >> 64);
+
+	return ((__uint128_t)a << 64) | b;
+}
+#else
+static __uint128_t arm64_cpu_to_le128(__uint128_t x)
+{
+	return x;
+}
+#endif
+
+#define arm64_le128_to_cpu(x) arm64_cpu_to_le128(x)
+
+static bool sve_supported(void)
+{
+	return getauxval(AT_HWCAP) & HWCAP_SVE;
+}
+
+static bool sme_supported(void)
+{
+	return getauxval(AT_HWCAP2) & HWCAP2_SME;
+}
+
+static bool sme2_supported(void)
+{
+	return getauxval(AT_HWCAP2) & HWCAP2_SME2;
+}
+
+static bool fa64_supported(void)
+{
+	return getauxval(AT_HWCAP2) & HWCAP2_SME_FA64;
+}
+
+static bool fpmr_supported(void)
+{
+	return getauxval(AT_HWCAP2) & HWCAP2_FPMR;
+}
+
+static bool compare_buffer(const char *name, void *out,
+			   void *expected, size_t size)
+{
+	void *tmp;
+
+	if (memcmp(out, expected, size) == 0)
+		return true;
+
+	ksft_print_msg("Mismatch in %s\n", name);
+
+	/* Did we just get zeros back? */
+	tmp = malloc(size);
+	if (!tmp) {
+		ksft_print_msg("OOM allocating %lu bytes for %s\n",
+			       size, name);
+		ksft_exit_fail();
+	}
+	memset(tmp, 0, size);
+
+	if (memcmp(out, tmp, size) == 0)
+		ksft_print_msg("%s is zero\n", name);
+
+	free(tmp);
+
+	return false;
+}
+
+struct test_config {
+	int sve_vl_in;
+	int sve_vl_expected;
+	int sme_vl_in;
+	int sme_vl_expected;
+	int svcr_in;
+	int svcr_expected;
+};
+
+struct test_definition {
+	const char *name;
+	bool sve_vl_change;
+	bool (*supported)(struct test_config *config);
+	void (*set_expected_values)(struct test_config *config);
+	void (*modify_values)(pid_t child, struct test_config *test_config);
+};
+
+static int vl_in(struct test_config *config)
+{
+	int vl;
+
+	if (config->svcr_in & SVCR_SM)
+		vl = config->sme_vl_in;
+	else
+		vl = config->sve_vl_in;
+
+	return vl;
+}
+
+static int vl_expected(struct test_config *config)
+{
+	int vl;
+
+	if (config->svcr_expected & SVCR_SM)
+		vl = config->sme_vl_expected;
+	else
+		vl = config->sve_vl_expected;
+
+	return vl;
+}
+
+static void run_child(struct test_config *config)
+{
+	int ret, flags;
+
+	/* Let the parent attach to us */
+	ret = ptrace(PTRACE_TRACEME, 0, 0, 0);
+	if (ret < 0)
+		ksft_exit_fail_msg("PTRACE_TRACEME failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	/* VL setup */
+	if (sve_supported()) {
+		ret = prctl(PR_SVE_SET_VL, config->sve_vl_in);
+		if (ret != config->sve_vl_in) {
+			ksft_print_msg("Failed to set SVE VL %d: %d\n",
+				       config->sve_vl_in, ret);
+		}
+	}
+
+	if (sme_supported()) {
+		ret = prctl(PR_SME_SET_VL, config->sme_vl_in);
+		if (ret != config->sme_vl_in) {
+			ksft_print_msg("Failed to set SME VL %d: %d\n",
+				       config->sme_vl_in, ret);
+		}
+	}
+
+	/* Load values and wait for the parent */
+	flags = 0;
+	if (sve_supported())
+		flags |= HAVE_SVE;
+	if (sme_supported())
+		flags |= HAVE_SME;
+	if (sme2_supported())
+		flags |= HAVE_SME2;
+	if (fa64_supported())
+		flags |= HAVE_FA64;
+	if (fpmr_supported())
+		flags |= HAVE_FPMR;
+
+	load_and_save(flags);
+
+	exit(0);
+}
+
+static void read_one_child_regs(pid_t child, char *name,
+				struct iovec *iov_parent,
+				struct iovec *iov_child)
+{
+	int len = iov_parent->iov_len;
+	int ret;
+
+	ret = process_vm_readv(child, iov_parent, 1, iov_child, 1, 0);
+	if (ret == -1)
+		ksft_print_msg("%s read failed: %s (%d)\n",
+			       name, strerror(errno), errno);
+	else if (ret != len)
+		ksft_print_msg("Short read of %s: %d\n", name, ret);
+}
+
+static void read_child_regs(pid_t child)
+{
+	struct iovec iov_parent, iov_child;
+
+	/*
+	 * Since the child fork()ed from us the buffer addresses are
+	 * the same in parent and child.
+	 */
+	iov_parent.iov_base = &v_out;
+	iov_parent.iov_len = sizeof(v_out);
+	iov_child.iov_base = &v_out;
+	iov_child.iov_len = sizeof(v_out);
+	read_one_child_regs(child, "FPSIMD", &iov_parent, &iov_child);
+
+	if (sve_supported() || sme_supported()) {
+		iov_parent.iov_base = &sve_vl_out;
+		iov_parent.iov_len = sizeof(sve_vl_out);
+		iov_child.iov_base = &sve_vl_out;
+		iov_child.iov_len = sizeof(sve_vl_out);
+		read_one_child_regs(child, "SVE VL", &iov_parent, &iov_child);
+
+		iov_parent.iov_base = &z_out;
+		iov_parent.iov_len = sizeof(z_out);
+		iov_child.iov_base = &z_out;
+		iov_child.iov_len = sizeof(z_out);
+		read_one_child_regs(child, "Z", &iov_parent, &iov_child);
+
+		iov_parent.iov_base = &p_out;
+		iov_parent.iov_len = sizeof(p_out);
+		iov_child.iov_base = &p_out;
+		iov_child.iov_len = sizeof(p_out);
+		read_one_child_regs(child, "P", &iov_parent, &iov_child);
+
+		iov_parent.iov_base = &ffr_out;
+		iov_parent.iov_len = sizeof(ffr_out);
+		iov_child.iov_base = &ffr_out;
+		iov_child.iov_len = sizeof(ffr_out);
+		read_one_child_regs(child, "FFR", &iov_parent, &iov_child);
+	}
+
+	if (sme_supported()) {
+		iov_parent.iov_base = &sme_vl_out;
+		iov_parent.iov_len = sizeof(sme_vl_out);
+		iov_child.iov_base = &sme_vl_out;
+		iov_child.iov_len = sizeof(sme_vl_out);
+		read_one_child_regs(child, "SME VL", &iov_parent, &iov_child);
+
+		iov_parent.iov_base = &svcr_out;
+		iov_parent.iov_len = sizeof(svcr_out);
+		iov_child.iov_base = &svcr_out;
+		iov_child.iov_len = sizeof(svcr_out);
+		read_one_child_regs(child, "SVCR", &iov_parent, &iov_child);
+
+		iov_parent.iov_base = &za_out;
+		iov_parent.iov_len = sizeof(za_out);
+		iov_child.iov_base = &za_out;
+		iov_child.iov_len = sizeof(za_out);
+		read_one_child_regs(child, "ZA", &iov_parent, &iov_child);
+	}
+
+	if (sme2_supported()) {
+		iov_parent.iov_base = &zt_out;
+		iov_parent.iov_len = sizeof(zt_out);
+		iov_child.iov_base = &zt_out;
+		iov_child.iov_len = sizeof(zt_out);
+		read_one_child_regs(child, "ZT", &iov_parent, &iov_child);
+	}
+
+	if (fpmr_supported()) {
+		iov_parent.iov_base = &fpmr_out;
+		iov_parent.iov_len = sizeof(fpmr_out);
+		iov_child.iov_base = &fpmr_out;
+		iov_child.iov_len = sizeof(fpmr_out);
+		read_one_child_regs(child, "FPMR", &iov_parent, &iov_child);
+	}
+}
+
+static bool continue_breakpoint(pid_t child,
+				enum __ptrace_request restart_type)
+{
+	struct user_pt_regs pt_regs;
+	struct iovec iov;
+	int ret;
+
+	/* Get PC */
+	iov.iov_base = &pt_regs;
+	iov.iov_len = sizeof(pt_regs);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PRSTATUS, &iov);
+	if (ret < 0) {
+		ksft_print_msg("Failed to get PC: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	/* Skip over the BRK */
+	pt_regs.pc += 4;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PRSTATUS, &iov);
+	if (ret < 0) {
+		ksft_print_msg("Failed to skip BRK: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	/* Restart */
+	ret = ptrace(restart_type, child, 0, 0);
+	if (ret < 0) {
+		ksft_print_msg("Failed to restart child: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	return true;
+}
+
+static bool check_ptrace_values_sve(pid_t child, struct test_config *config)
+{
+	struct user_sve_header *sve;
+	struct user_fpsimd_state *fpsimd;
+	struct iovec iov;
+	int ret, vq;
+	bool pass = true;
+
+	if (!sve_supported())
+		return true;
+
+	vq = __sve_vq_from_vl(config->sve_vl_in);
+
+	iov.iov_len = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("OOM allocating %lu byte SVE buffer\n",
+			       iov.iov_len);
+		return false;
+	}
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_SVE, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read initial SVE: %s (%d)\n",
+			       strerror(errno), errno);
+		pass = false;
+		goto out;
+	}
+
+	sve = iov.iov_base;
+
+	if (sve->vl != config->sve_vl_in) {
+		ksft_print_msg("Mismatch in initial SVE VL: %d != %d\n",
+			       sve->vl, config->sve_vl_in);
+		pass = false;
+	}
+
+	/* If we are in streaming mode we should just read FPSIMD */
+	if ((config->svcr_in & SVCR_SM) && (sve->flags & SVE_PT_REGS_SVE)) {
+		ksft_print_msg("NT_ARM_SVE reports SVE with PSTATE.SM\n");
+		pass = false;
+	}
+
+	if (svcr_in & SVCR_SM) {
+		if (sve->size != sizeof(sve)) {
+			ksft_print_msg("NT_ARM_SVE reports data with PSTATE.SM\n");
+			pass = false;
+		}
+	} else {
+		if (sve->size != SVE_PT_SIZE(vq, sve->flags)) {
+			ksft_print_msg("Mismatch in SVE header size: %d != %lu\n",
+				       sve->size, SVE_PT_SIZE(vq, sve->flags));
+			pass = false;
+		}
+	}
+
+	/* The registers might be in completely different formats! */
+	if (sve->flags & SVE_PT_REGS_SVE) {
+		if (!compare_buffer("initial SVE Z",
+				    iov.iov_base + SVE_PT_SVE_ZREG_OFFSET(vq, 0),
+				    z_in, SVE_PT_SVE_ZREGS_SIZE(vq)))
+			pass = false;
+
+		if (!compare_buffer("initial SVE P",
+				    iov.iov_base + SVE_PT_SVE_PREG_OFFSET(vq, 0),
+				    p_in, SVE_PT_SVE_PREGS_SIZE(vq)))
+			pass = false;
+
+		if (!compare_buffer("initial SVE FFR",
+				    iov.iov_base + SVE_PT_SVE_FFR_OFFSET(vq),
+				    ffr_in, SVE_PT_SVE_PREG_SIZE(vq)))
+			pass = false;
+	} else {
+		fpsimd = iov.iov_base + SVE_PT_FPSIMD_OFFSET;
+		if (!compare_buffer("initial V via SVE", &fpsimd->vregs[0],
+				    v_in, sizeof(v_in)))
+			pass = false;
+	}
+
+out:
+	free(iov.iov_base);
+	return pass;
+}
+
+static bool check_ptrace_values_ssve(pid_t child, struct test_config *config)
+{
+	struct user_sve_header *sve;
+	struct user_fpsimd_state *fpsimd;
+	struct iovec iov;
+	int ret, vq;
+	bool pass = true;
+
+	if (!sme_supported())
+		return true;
+
+	vq = __sve_vq_from_vl(config->sme_vl_in);
+
+	iov.iov_len = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("OOM allocating %lu byte SSVE buffer\n",
+			       iov.iov_len);
+		return false;
+	}
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_SSVE, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read initial SSVE: %s (%d)\n",
+			       strerror(errno), errno);
+		pass = false;
+		goto out;
+	}
+
+	sve = iov.iov_base;
+
+	if (sve->vl != config->sme_vl_in) {
+		ksft_print_msg("Mismatch in initial SSVE VL: %d != %d\n",
+			       sve->vl, config->sme_vl_in);
+		pass = false;
+	}
+
+	if ((config->svcr_in & SVCR_SM) && !(sve->flags & SVE_PT_REGS_SVE)) {
+		ksft_print_msg("NT_ARM_SSVE reports FPSIMD with PSTATE.SM\n");
+		pass = false;
+	}
+
+	if (!(svcr_in & SVCR_SM)) {
+		if (sve->size != sizeof(sve)) {
+			ksft_print_msg("NT_ARM_SSVE reports data without PSTATE.SM\n");
+			pass = false;
+		}
+	} else {
+		if (sve->size != SVE_PT_SIZE(vq, sve->flags)) {
+			ksft_print_msg("Mismatch in SSVE header size: %d != %lu\n",
+				       sve->size, SVE_PT_SIZE(vq, sve->flags));
+			pass = false;
+		}
+	}
+
+	/* The registers might be in completely different formats! */
+	if (sve->flags & SVE_PT_REGS_SVE) {
+		if (!compare_buffer("initial SSVE Z",
+				    iov.iov_base + SVE_PT_SVE_ZREG_OFFSET(vq, 0),
+				    z_in, SVE_PT_SVE_ZREGS_SIZE(vq)))
+			pass = false;
+
+		if (!compare_buffer("initial SSVE P",
+				    iov.iov_base + SVE_PT_SVE_PREG_OFFSET(vq, 0),
+				    p_in, SVE_PT_SVE_PREGS_SIZE(vq)))
+			pass = false;
+
+		if (!compare_buffer("initial SSVE FFR",
+				    iov.iov_base + SVE_PT_SVE_FFR_OFFSET(vq),
+				    ffr_in, SVE_PT_SVE_PREG_SIZE(vq)))
+			pass = false;
+	} else {
+		fpsimd = iov.iov_base + SVE_PT_FPSIMD_OFFSET;
+		if (!compare_buffer("initial V via SSVE",
+				    &fpsimd->vregs[0], v_in, sizeof(v_in)))
+			pass = false;
+	}
+
+out:
+	free(iov.iov_base);
+	return pass;
+}
+
+static bool check_ptrace_values_za(pid_t child, struct test_config *config)
+{
+	struct user_za_header *za;
+	struct iovec iov;
+	int ret, vq;
+	bool pass = true;
+
+	if (!sme_supported())
+		return true;
+
+	vq = __sve_vq_from_vl(config->sme_vl_in);
+
+	iov.iov_len = ZA_SIG_CONTEXT_SIZE(vq);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("OOM allocating %lu byte ZA buffer\n",
+			       iov.iov_len);
+		return false;
+	}
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_ZA, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read initial ZA: %s (%d)\n",
+			       strerror(errno), errno);
+		pass = false;
+		goto out;
+	}
+
+	za = iov.iov_base;
+
+	if (za->vl != config->sme_vl_in) {
+		ksft_print_msg("Mismatch in initial SME VL: %d != %d\n",
+			       za->vl, config->sme_vl_in);
+		pass = false;
+	}
+
+	/* If PSTATE.ZA is not set we should just read the header */
+	if (config->svcr_in & SVCR_ZA) {
+		if (za->size != ZA_PT_SIZE(vq)) {
+			ksft_print_msg("Unexpected ZA ptrace read size: %d != %lu\n",
+				       za->size, ZA_PT_SIZE(vq));
+			pass = false;
+		}
+
+		if (!compare_buffer("initial ZA",
+				    iov.iov_base + ZA_PT_ZA_OFFSET,
+				    za_in, ZA_PT_ZA_SIZE(vq)))
+			pass = false;
+	} else {
+		if (za->size != sizeof(*za)) {
+			ksft_print_msg("Unexpected ZA ptrace read size: %d != %lu\n",
+				       za->size, sizeof(*za));
+			pass = false;
+		}
+	}
+
+out:
+	free(iov.iov_base);
+	return pass;
+}
+
+static bool check_ptrace_values_zt(pid_t child, struct test_config *config)
+{
+	uint8_t buf[512];
+	struct iovec iov;
+	int ret;
+
+	if (!sme2_supported())
+		return true;
+
+	iov.iov_base = &buf;
+	iov.iov_len = ZT_SIG_REG_BYTES;
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_ZT, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read initial ZT: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	return compare_buffer("initial ZT", buf, zt_in, ZT_SIG_REG_BYTES);
+}
+
+static bool check_ptrace_values_fpmr(pid_t child, struct test_config *config)
+{
+	uint64_t val;
+	struct iovec iov;
+	int ret;
+
+	if (!fpmr_supported())
+		return true;
+
+	iov.iov_base = &val;
+	iov.iov_len = sizeof(val);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_FPMR, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read initial FPMR: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	return compare_buffer("initial FPMR", &val, &fpmr_in, sizeof(val));
+}
+
+static bool check_ptrace_values(pid_t child, struct test_config *config)
+{
+	bool pass = true;
+	struct user_fpsimd_state fpsimd;
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = &fpsimd;
+	iov.iov_len = sizeof(fpsimd);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PRFPREG, &iov);
+	if (ret == 0) {
+		if (!compare_buffer("initial V", &fpsimd.vregs, v_in,
+				    sizeof(v_in))) {
+			pass = false;
+		}
+	} else {
+		ksft_print_msg("Failed to read initial V: %s (%d)\n",
+			       strerror(errno), errno);
+		pass = false;
+	}
+
+	if (!check_ptrace_values_sve(child, config))
+		pass = false;
+
+	if (!check_ptrace_values_ssve(child, config))
+		pass = false;
+
+	if (!check_ptrace_values_za(child, config))
+		pass = false;
+
+	if (!check_ptrace_values_zt(child, config))
+		pass = false;
+
+	if (!check_ptrace_values_fpmr(child, config))
+		pass = false;
+
+	return pass;
+}
+
+static bool run_parent(pid_t child, struct test_definition *test,
+		       struct test_config *config)
+{
+	int wait_status, ret;
+	pid_t pid;
+	bool pass;
+
+	/* Initial attach */
+	while (1) {
+		pid = waitpid(child, &wait_status, 0);
+		if (pid < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("waitpid() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		if (pid == child)
+			break;
+	}
+
+	if (WIFEXITED(wait_status)) {
+		ksft_print_msg("Child exited loading values with status %d\n",
+			       WEXITSTATUS(wait_status));
+		pass = false;
+		goto out;
+	}
+
+	if (WIFSIGNALED(wait_status)) {
+		ksft_print_msg("Child died from signal %d loading values\n",
+			       WTERMSIG(wait_status));
+		pass = false;
+		goto out;
+	}
+
+	/* Read initial values via ptrace */
+	pass = check_ptrace_values(child, config);
+
+	/* Do whatever writes we want to do */
+	if (test->modify_values)
+		test->modify_values(child, config);
+
+	if (!continue_breakpoint(child, PTRACE_CONT))
+		goto cleanup;
+
+	while (1) {
+		pid = waitpid(child, &wait_status, 0);
+		if (pid < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("waitpid() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		if (pid == child)
+			break;
+	}
+
+	if (WIFEXITED(wait_status)) {
+		ksft_print_msg("Child exited saving values with status %d\n",
+			       WEXITSTATUS(wait_status));
+		pass = false;
+		goto out;
+	}
+
+	if (WIFSIGNALED(wait_status)) {
+		ksft_print_msg("Child died from signal %d saving values\n",
+			       WTERMSIG(wait_status));
+		pass = false;
+		goto out;
+	}
+
+	/* See what happened as a result */
+	read_child_regs(child);
+
+	if (!continue_breakpoint(child, PTRACE_DETACH))
+		goto cleanup;
+
+	/* The child should exit cleanly */
+	got_alarm = false;
+	alarm(1);
+	while (1) {
+		if (got_alarm) {
+			ksft_print_msg("Wait for child timed out\n");
+			goto cleanup;
+		}
+
+		pid = waitpid(child, &wait_status, 0);
+		if (pid < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("waitpid() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		if (pid == child)
+			break;
+	}
+	alarm(0);
+
+	if (got_alarm) {
+		ksft_print_msg("Timed out waiting for child\n");
+		pass = false;
+		goto cleanup;
+	}
+
+	if (pid == child && WIFSIGNALED(wait_status)) {
+		ksft_print_msg("Child died from signal %d cleaning up\n",
+			       WTERMSIG(wait_status));
+		pass = false;
+		goto out;
+	}
+
+	if (pid == child && WIFEXITED(wait_status)) {
+		if (WEXITSTATUS(wait_status) != 0) {
+			ksft_print_msg("Child exited with error %d\n",
+				       WEXITSTATUS(wait_status));
+			pass = false;
+		}
+	} else {
+		ksft_print_msg("Child did not exit cleanly\n");
+		pass = false;
+		goto cleanup;
+	}
+
+	goto out;
+
+cleanup:
+	ret = kill(child, SIGKILL);
+	if (ret != 0) {
+		ksft_print_msg("kill() failed: %s (%d)\n",
+			       strerror(errno), errno);
+		return false;
+	}
+
+	while (1) {
+		pid = waitpid(child, &wait_status, 0);
+		if (pid < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("waitpid() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		if (pid == child)
+			break;
+	}
+
+out:
+	return pass;
+}
+
+static void fill_random(void *buf, size_t size)
+{
+	int i;
+	uint32_t *lbuf = buf;
+
+	/* random() returns a 32 bit number regardless of the size of long */
+	for (i = 0; i < size / sizeof(uint32_t); i++)
+		lbuf[i] = random();
+}
+
+static void fill_random_ffr(void *buf, size_t vq)
+{
+	uint8_t *lbuf = buf;
+	int bits, i;
+
+	/*
+	 * Only values with a continuous set of 0..n bits set are
+	 * valid for FFR, set all bits then clear a random number of
+	 * high bits.
+	 */
+	memset(buf, 0, __SVE_FFR_SIZE(vq));
+
+	bits = random() % (__SVE_FFR_SIZE(vq) * 8);
+	for (i = 0; i < bits / 8; i++)
+		lbuf[i] = 0xff;
+	if (bits / 8 != __SVE_FFR_SIZE(vq))
+		lbuf[i] = (1 << (bits % 8)) - 1;
+}
+
+static void fpsimd_to_sve(__uint128_t *v, char *z, int vl)
+{
+	int vq = __sve_vq_from_vl(vl);
+	int i;
+	__uint128_t *p;
+
+	if (!vl)
+		return;
+
+	for (i = 0; i < __SVE_NUM_ZREGS; i++) {
+		p = (__uint128_t *)&z[__SVE_ZREG_OFFSET(vq, i)];
+		*p = arm64_cpu_to_le128(v[i]);
+	}
+}
+
+static void set_initial_values(struct test_config *config)
+{
+	int vq = __sve_vq_from_vl(vl_in(config));
+	int sme_vq = __sve_vq_from_vl(config->sme_vl_in);
+
+	svcr_in = config->svcr_in;
+	svcr_expected = config->svcr_expected;
+	svcr_out = 0;
+
+	fill_random(&v_in, sizeof(v_in));
+	memcpy(v_expected, v_in, sizeof(v_in));
+	memset(v_out, 0, sizeof(v_out));
+
+	/* Changes will be handled in the test case */
+	if (sve_supported() || (config->svcr_in & SVCR_SM)) {
+		/* The low 128 bits of Z are shared with the V registers */
+		fill_random(&z_in, __SVE_ZREGS_SIZE(vq));
+		fpsimd_to_sve(v_in, z_in, vl_in(config));
+		memcpy(z_expected, z_in, __SVE_ZREGS_SIZE(vq));
+		memset(z_out, 0, sizeof(z_out));
+
+		fill_random(&p_in, __SVE_PREGS_SIZE(vq));
+		memcpy(p_expected, p_in, __SVE_PREGS_SIZE(vq));
+		memset(p_out, 0, sizeof(p_out));
+
+		if ((config->svcr_in & SVCR_SM) && !fa64_supported())
+			memset(ffr_in, 0, __SVE_PREG_SIZE(vq));
+		else
+			fill_random_ffr(&ffr_in, vq);
+		memcpy(ffr_expected, ffr_in, __SVE_PREG_SIZE(vq));
+		memset(ffr_out, 0, __SVE_PREG_SIZE(vq));
+	}
+
+	if (config->svcr_in & SVCR_ZA)
+		fill_random(za_in, ZA_SIG_REGS_SIZE(sme_vq));
+	else
+		memset(za_in, 0, ZA_SIG_REGS_SIZE(sme_vq));
+	if (config->svcr_expected & SVCR_ZA)
+		memcpy(za_expected, za_in, ZA_SIG_REGS_SIZE(sme_vq));
+	else
+		memset(za_expected, 0, ZA_SIG_REGS_SIZE(sme_vq));
+	if (sme_supported())
+		memset(za_out, 0, sizeof(za_out));
+
+	if (sme2_supported()) {
+		if (config->svcr_in & SVCR_ZA)
+			fill_random(zt_in, ZT_SIG_REG_BYTES);
+		else
+			memset(zt_in, 0, ZT_SIG_REG_BYTES);
+		if (config->svcr_expected & SVCR_ZA)
+			memcpy(zt_expected, zt_in, ZT_SIG_REG_BYTES);
+		else
+			memset(zt_expected, 0, ZT_SIG_REG_BYTES);
+		memset(zt_out, 0, sizeof(zt_out));
+	}
+
+	if (fpmr_supported()) {
+		fill_random(&fpmr_in, sizeof(fpmr_in));
+		fpmr_in &= FPMR_SAFE_BITS;
+		fpmr_expected = fpmr_in;
+	} else {
+		fpmr_in = 0;
+		fpmr_expected = 0;
+		fpmr_out = 0;
+	}
+}
+
+static bool check_memory_values(struct test_config *config)
+{
+	bool pass = true;
+	int vq, sme_vq;
+
+	if (!compare_buffer("saved V", v_out, v_expected, sizeof(v_out)))
+		pass = false;
+
+	vq = __sve_vq_from_vl(vl_expected(config));
+	sme_vq = __sve_vq_from_vl(config->sme_vl_expected);
+
+	if (svcr_out != svcr_expected) {
+		ksft_print_msg("Mismatch in saved SVCR %lx != %lx\n",
+			       svcr_out, svcr_expected);
+		pass = false;
+	}
+
+	if (sve_vl_out != config->sve_vl_expected) {
+		ksft_print_msg("Mismatch in SVE VL: %ld != %d\n",
+			       sve_vl_out, config->sve_vl_expected);
+		pass = false;
+	}
+
+	if (sme_vl_out != config->sme_vl_expected) {
+		ksft_print_msg("Mismatch in SME VL: %ld != %d\n",
+			       sme_vl_out, config->sme_vl_expected);
+		pass = false;
+	}
+
+	if (!compare_buffer("saved Z", z_out, z_expected,
+			    __SVE_ZREGS_SIZE(vq)))
+		pass = false;
+
+	if (!compare_buffer("saved P", p_out, p_expected,
+			    __SVE_PREGS_SIZE(vq)))
+		pass = false;
+
+	if (!compare_buffer("saved FFR", ffr_out, ffr_expected,
+			    __SVE_PREG_SIZE(vq)))
+		pass = false;
+
+	if (!compare_buffer("saved ZA", za_out, za_expected,
+			    ZA_PT_ZA_SIZE(sme_vq)))
+		pass = false;
+
+	if (!compare_buffer("saved ZT", zt_out, zt_expected, ZT_SIG_REG_BYTES))
+		pass = false;
+
+	if (fpmr_out != fpmr_expected) {
+		ksft_print_msg("Mismatch in saved FPMR: %lx != %lx\n",
+			       fpmr_out, fpmr_expected);
+		pass = false;
+	}
+
+	return pass;
+}
+
+static bool sve_sme_same(struct test_config *config)
+{
+	if (config->sve_vl_in != config->sve_vl_expected)
+		return false;
+
+	if (config->sme_vl_in != config->sme_vl_expected)
+		return false;
+
+	if (config->svcr_in != config->svcr_expected)
+		return false;
+
+	return true;
+}
+
+static bool sve_write_supported(struct test_config *config)
+{
+	if (!sve_supported() && !sme_supported())
+		return false;
+
+	if ((config->svcr_in & SVCR_ZA) != (config->svcr_expected & SVCR_ZA))
+		return false;
+
+	if (config->svcr_expected & SVCR_SM) {
+		if (config->sve_vl_in != config->sve_vl_expected) {
+			return false;
+		}
+
+		/* Changing the SME VL disables ZA */
+		if ((config->svcr_expected & SVCR_ZA) &&
+		    (config->sme_vl_in != config->sme_vl_expected)) {
+			return false;
+		}
+	} else {
+		if (config->sme_vl_in != config->sme_vl_expected) {
+			return false;
+		}
+
+		if (!sve_supported())
+			return false;
+	}
+
+	return true;
+}
+
+static bool sve_write_fpsimd_supported(struct test_config *config)
+{
+	if (!sve_supported() && !sme_supported())
+		return false;
+
+	if ((config->svcr_in & SVCR_ZA) != (config->svcr_expected & SVCR_ZA))
+		return false;
+
+	if (config->svcr_expected & SVCR_SM)
+		return false;
+
+	if (config->sme_vl_in != config->sme_vl_expected)
+		return false;
+
+	return true;
+}
+
+static void fpsimd_write_expected(struct test_config *config)
+{
+	int vl;
+
+	fill_random(&v_expected, sizeof(v_expected));
+
+	/* The SVE registers are flushed by a FPSIMD write */
+	vl = vl_expected(config);
+
+	memset(z_expected, 0, __SVE_ZREGS_SIZE(__sve_vq_from_vl(vl)));
+	memset(p_expected, 0, __SVE_PREGS_SIZE(__sve_vq_from_vl(vl)));
+	memset(ffr_expected, 0, __SVE_PREG_SIZE(__sve_vq_from_vl(vl)));
+
+	fpsimd_to_sve(v_expected, z_expected, vl);
+}
+
+static void fpsimd_write(pid_t child, struct test_config *test_config)
+{
+	struct user_fpsimd_state fpsimd;
+	struct iovec iov;
+	int ret;
+
+	memset(&fpsimd, 0, sizeof(fpsimd));
+	memcpy(&fpsimd.vregs, v_expected, sizeof(v_expected));
+
+	iov.iov_base = &fpsimd;
+	iov.iov_len = sizeof(fpsimd);
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PRFPREG, &iov);
+	if (ret == -1)
+		ksft_print_msg("FPSIMD set failed: (%s) %d\n",
+			       strerror(errno), errno);
+}
+
+static bool fpmr_write_supported(struct test_config *config)
+{
+	if (!fpmr_supported())
+		return false;
+
+	if (!sve_sme_same(config))
+		return false;
+
+	return true;
+}
+
+static void fpmr_write_expected(struct test_config *config)
+{
+	fill_random(&fpmr_expected, sizeof(fpmr_expected));
+	fpmr_expected &= FPMR_SAFE_BITS;
+}
+
+static void fpmr_write(pid_t child, struct test_config *config)
+{
+	struct iovec iov;
+	int ret;
+
+	iov.iov_len = sizeof(fpmr_expected);
+	iov.iov_base = &fpmr_expected;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_FPMR, &iov);
+	if (ret != 0)
+		ksft_print_msg("Failed to write FPMR: %s (%d)\n",
+			       strerror(errno), errno);
+}
+
+static void sve_write_expected(struct test_config *config)
+{
+	int vl = vl_expected(config);
+	int sme_vq = __sve_vq_from_vl(config->sme_vl_expected);
+
+	if (!vl)
+		return;
+
+	fill_random(z_expected, __SVE_ZREGS_SIZE(__sve_vq_from_vl(vl)));
+	fill_random(p_expected, __SVE_PREGS_SIZE(__sve_vq_from_vl(vl)));
+
+	if ((svcr_expected & SVCR_SM) && !fa64_supported())
+		memset(ffr_expected, 0, __SVE_PREG_SIZE(sme_vq));
+	else
+		fill_random_ffr(ffr_expected, __sve_vq_from_vl(vl));
+
+	/* Share the low bits of Z with V */
+	fill_random(&v_expected, sizeof(v_expected));
+	fpsimd_to_sve(v_expected, z_expected, vl);
+
+	if (config->sme_vl_in != config->sme_vl_expected) {
+		memset(za_expected, 0, ZA_PT_ZA_SIZE(sme_vq));
+		memset(zt_expected, 0, sizeof(zt_expected));
+	}
+}
+
+static void sve_write_sve(pid_t child, struct test_config *config)
+{
+	struct user_sve_header *sve;
+	struct iovec iov;
+	int ret, vl, vq, regset;
+
+	vl = vl_expected(config);
+	vq = __sve_vq_from_vl(vl);
+
+	if (!vl)
+		return;
+
+	iov.iov_len = SVE_PT_SIZE(vq, SVE_PT_REGS_SVE);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("Failed allocating %lu byte SVE write buffer\n",
+			       iov.iov_len);
+		return;
+	}
+	memset(iov.iov_base, 0, iov.iov_len);
+
+	sve = iov.iov_base;
+	sve->size = iov.iov_len;
+	sve->flags = SVE_PT_REGS_SVE;
+	sve->vl = vl;
+
+	memcpy(iov.iov_base + SVE_PT_SVE_ZREG_OFFSET(vq, 0),
+	       z_expected, SVE_PT_SVE_ZREGS_SIZE(vq));
+	memcpy(iov.iov_base + SVE_PT_SVE_PREG_OFFSET(vq, 0),
+	       p_expected, SVE_PT_SVE_PREGS_SIZE(vq));
+	memcpy(iov.iov_base + SVE_PT_SVE_FFR_OFFSET(vq),
+	       ffr_expected, SVE_PT_SVE_PREG_SIZE(vq));
+
+	if (svcr_expected & SVCR_SM)
+		regset = NT_ARM_SSVE;
+	else
+		regset = NT_ARM_SVE;
+
+	ret = ptrace(PTRACE_SETREGSET, child, regset, &iov);
+	if (ret != 0)
+		ksft_print_msg("Failed to write SVE: %s (%d)\n",
+			       strerror(errno), errno);
+
+	free(iov.iov_base);
+}
+
+static void sve_write_fpsimd(pid_t child, struct test_config *config)
+{
+	struct user_sve_header *sve;
+	struct user_fpsimd_state *fpsimd;
+	struct iovec iov;
+	int ret, vl, vq;
+
+	vl = vl_expected(config);
+	vq = __sve_vq_from_vl(vl);
+
+	iov.iov_len = SVE_PT_SIZE(vq, SVE_PT_REGS_FPSIMD);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("Failed allocating %lu byte SVE write buffer\n",
+			       iov.iov_len);
+		return;
+	}
+	memset(iov.iov_base, 0, iov.iov_len);
+
+	sve = iov.iov_base;
+	sve->size = iov.iov_len;
+	sve->flags = SVE_PT_REGS_FPSIMD;
+	sve->vl = vl;
+
+	fpsimd = iov.iov_base + SVE_PT_REGS_OFFSET;
+	memcpy(&fpsimd->vregs, v_expected, sizeof(v_expected));
+
+	ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_SVE, &iov);
+	if (ret != 0)
+		ksft_print_msg("Failed to write SVE: %s (%d)\n",
+			       strerror(errno), errno);
+
+	free(iov.iov_base);
+}
+
+static bool za_write_supported(struct test_config *config)
+{
+	if ((config->svcr_in & SVCR_SM) != (config->svcr_expected & SVCR_SM))
+		return false;
+
+	return true;
+}
+
+static void za_write_expected(struct test_config *config)
+{
+	int sme_vq, sve_vq;
+
+	sme_vq = __sve_vq_from_vl(config->sme_vl_expected);
+
+	if (config->svcr_expected & SVCR_ZA) {
+		fill_random(za_expected, ZA_PT_ZA_SIZE(sme_vq));
+	} else {
+		memset(za_expected, 0, ZA_PT_ZA_SIZE(sme_vq));
+		memset(zt_expected, 0, sizeof(zt_expected));
+	}
+
+	/* Changing the SME VL flushes ZT, SVE state */
+	if (config->sme_vl_in != config->sme_vl_expected) {
+		sve_vq = __sve_vq_from_vl(vl_expected(config));
+		memset(z_expected, 0, __SVE_ZREGS_SIZE(sve_vq));
+		memset(p_expected, 0, __SVE_PREGS_SIZE(sve_vq));
+		memset(ffr_expected, 0, __SVE_PREG_SIZE(sve_vq));
+		memset(zt_expected, 0, sizeof(zt_expected));
+
+		fpsimd_to_sve(v_expected, z_expected, vl_expected(config));
+	}
+}
+
+static void za_write(pid_t child, struct test_config *config)
+{
+	struct user_za_header *za;
+	struct iovec iov;
+	int ret, vq;
+
+	vq = __sve_vq_from_vl(config->sme_vl_expected);
+
+	if (config->svcr_expected & SVCR_ZA)
+		iov.iov_len = ZA_PT_SIZE(vq);
+	else
+		iov.iov_len = sizeof(*za);
+	iov.iov_base = malloc(iov.iov_len);
+	if (!iov.iov_base) {
+		ksft_print_msg("Failed allocating %lu byte ZA write buffer\n",
+			       iov.iov_len);
+		return;
+	}
+	memset(iov.iov_base, 0, iov.iov_len);
+
+	za = iov.iov_base;
+	za->size = iov.iov_len;
+	za->vl = config->sme_vl_expected;
+	if (config->svcr_expected & SVCR_ZA)
+		memcpy(iov.iov_base + ZA_PT_ZA_OFFSET, za_expected,
+		       ZA_PT_ZA_SIZE(vq));
+
+	ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_ZA, &iov);
+	if (ret != 0)
+		ksft_print_msg("Failed to write ZA: %s (%d)\n",
+			       strerror(errno), errno);
+
+	free(iov.iov_base);
+}
+
+static bool zt_write_supported(struct test_config *config)
+{
+	if (!sme2_supported())
+		return false;
+	if (config->sme_vl_in != config->sme_vl_expected)
+		return false;
+	if (!(config->svcr_expected & SVCR_ZA))
+		return false;
+	if ((config->svcr_in & SVCR_SM) != (config->svcr_expected & SVCR_SM))
+		return false;
+
+	return true;
+}
+
+static void zt_write_expected(struct test_config *config)
+{
+	int sme_vq;
+
+	sme_vq = __sve_vq_from_vl(config->sme_vl_expected);
+
+	if (config->svcr_expected & SVCR_ZA) {
+		fill_random(zt_expected, sizeof(zt_expected));
+	} else {
+		memset(za_expected, 0, ZA_PT_ZA_SIZE(sme_vq));
+		memset(zt_expected, 0, sizeof(zt_expected));
+	}
+}
+
+static void zt_write(pid_t child, struct test_config *config)
+{
+	struct iovec iov;
+	int ret;
+
+	iov.iov_len = ZT_SIG_REG_BYTES;
+	iov.iov_base = zt_expected;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_ARM_ZT, &iov);
+	if (ret != 0)
+		ksft_print_msg("Failed to write ZT: %s (%d)\n",
+			       strerror(errno), errno);
+}
+
+/* Actually run a test */
+static void run_test(struct test_definition *test, struct test_config *config)
+{
+	pid_t child;
+	char name[1024];
+	bool pass;
+
+	if (sve_supported() && sme_supported())
+		snprintf(name, sizeof(name), "%s, SVE %d->%d, SME %d/%x->%d/%x",
+			 test->name,
+			 config->sve_vl_in, config->sve_vl_expected,
+			 config->sme_vl_in, config->svcr_in,
+			 config->sme_vl_expected, config->svcr_expected);
+	else if (sve_supported())
+		snprintf(name, sizeof(name), "%s, SVE %d->%d", test->name,
+			 config->sve_vl_in, config->sve_vl_expected);
+	else if (sme_supported())
+		snprintf(name, sizeof(name), "%s, SME %d/%x->%d/%x",
+			 test->name,
+			 config->sme_vl_in, config->svcr_in,
+			 config->sme_vl_expected, config->svcr_expected);
+	else
+		snprintf(name, sizeof(name), "%s", test->name);
+
+	if (test->supported && !test->supported(config)) {
+		ksft_test_result_skip("%s\n", name);
+		return;
+	}
+
+	set_initial_values(config);
+
+	if (test->set_expected_values)
+		test->set_expected_values(config);
+
+	child = fork();
+	if (child < 0)
+		ksft_exit_fail_msg("fork() failed: %s (%d)\n",
+				   strerror(errno), errno);
+	/* run_child() never returns */
+	if (child == 0)
+		run_child(config);
+
+	pass = run_parent(child, test, config);
+	if (!check_memory_values(config))
+		pass = false;
+
+	ksft_test_result(pass, "%s\n", name);
+}
+
+static void run_tests(struct test_definition defs[], int count,
+		      struct test_config *config)
+{
+	int i;
+
+	for (i = 0; i < count; i++)
+		run_test(&defs[i], config);
+}
+
+static struct test_definition base_test_defs[] = {
+	{
+		.name = "No writes",
+		.supported = sve_sme_same,
+	},
+	{
+		.name = "FPSIMD write",
+		.supported = sve_sme_same,
+		.set_expected_values = fpsimd_write_expected,
+		.modify_values = fpsimd_write,
+	},
+	{
+		.name = "FPMR write",
+		.supported = fpmr_write_supported,
+		.set_expected_values = fpmr_write_expected,
+		.modify_values = fpmr_write,
+	},
+};
+
+static struct test_definition sve_test_defs[] = {
+	{
+		.name = "SVE write",
+		.supported = sve_write_supported,
+		.set_expected_values = sve_write_expected,
+		.modify_values = sve_write_sve,
+	},
+	{
+		.name = "SVE write FPSIMD format",
+		.supported = sve_write_fpsimd_supported,
+		.set_expected_values = fpsimd_write_expected,
+		.modify_values = sve_write_fpsimd,
+	},
+};
+
+static struct test_definition za_test_defs[] = {
+	{
+		.name = "ZA write",
+		.supported = za_write_supported,
+		.set_expected_values = za_write_expected,
+		.modify_values = za_write,
+	},
+};
+
+static struct test_definition zt_test_defs[] = {
+	{
+		.name = "ZT write",
+		.supported = zt_write_supported,
+		.set_expected_values = zt_write_expected,
+		.modify_values = zt_write,
+	},
+};
+
+static int sve_vls[MAX_NUM_VLS], sme_vls[MAX_NUM_VLS];
+static int sve_vl_count, sme_vl_count;
+
+static void probe_vls(const char *name, int vls[], int *vl_count, int set_vl)
+{
+	unsigned int vq;
+	int vl;
+
+	*vl_count = 0;
+
+	for (vq = ARCH_VQ_MAX; vq > 0; vq /= 2) {
+		vl = prctl(set_vl, vq * 16);
+		if (vl == -1)
+			ksft_exit_fail_msg("SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		vl &= PR_SVE_VL_LEN_MASK;
+
+		if (*vl_count && (vl == vls[*vl_count - 1]))
+			break;
+
+		vq = sve_vq_from_vl(vl);
+
+		vls[*vl_count] = vl;
+		*vl_count += 1;
+	}
+
+	if (*vl_count > 2) {
+		/* Just use the minimum and maximum */
+		vls[1] = vls[*vl_count - 1];
+		ksft_print_msg("%d %s VLs, using %d and %d\n",
+			       *vl_count, name, vls[0], vls[1]);
+		*vl_count = 2;
+	} else {
+		ksft_print_msg("%d %s VLs\n", *vl_count, name);
+	}
+}
+
+static struct {
+	int svcr_in, svcr_expected;
+} svcr_combinations[] = {
+	{ .svcr_in = 0, .svcr_expected = 0, },
+	{ .svcr_in = 0, .svcr_expected = SVCR_SM, },
+	{ .svcr_in = 0, .svcr_expected = SVCR_ZA, },
+	/* Can't enable both SM and ZA with a single ptrace write */
+
+	{ .svcr_in = SVCR_SM, .svcr_expected = 0, },
+	{ .svcr_in = SVCR_SM, .svcr_expected = SVCR_SM, },
+	{ .svcr_in = SVCR_SM, .svcr_expected = SVCR_ZA, },
+	{ .svcr_in = SVCR_SM, .svcr_expected = SVCR_SM | SVCR_ZA, },
+
+	{ .svcr_in = SVCR_ZA, .svcr_expected = 0, },
+	{ .svcr_in = SVCR_ZA, .svcr_expected = SVCR_SM, },
+	{ .svcr_in = SVCR_ZA, .svcr_expected = SVCR_ZA, },
+	{ .svcr_in = SVCR_ZA, .svcr_expected = SVCR_SM | SVCR_ZA, },
+
+	{ .svcr_in = SVCR_SM | SVCR_ZA, .svcr_expected = 0, },
+	{ .svcr_in = SVCR_SM | SVCR_ZA, .svcr_expected = SVCR_SM, },
+	{ .svcr_in = SVCR_SM | SVCR_ZA, .svcr_expected = SVCR_ZA, },
+	{ .svcr_in = SVCR_SM | SVCR_ZA, .svcr_expected = SVCR_SM | SVCR_ZA, },
+};
+
+static void run_sve_tests(void)
+{
+	struct test_config test_config;
+	int i, j;
+
+	if (!sve_supported())
+		return;
+
+	test_config.sme_vl_in = sme_vls[0];
+	test_config.sme_vl_expected = sme_vls[0];
+	test_config.svcr_in = 0;
+	test_config.svcr_expected = 0;
+
+	for (i = 0; i < sve_vl_count; i++) {
+		test_config.sve_vl_in = sve_vls[i];
+
+		for (j = 0; j < sve_vl_count; j++) {
+			test_config.sve_vl_expected = sve_vls[j];
+
+			run_tests(base_test_defs,
+				  ARRAY_SIZE(base_test_defs),
+				  &test_config);
+			if (sve_supported())
+				run_tests(sve_test_defs,
+					  ARRAY_SIZE(sve_test_defs),
+					  &test_config);
+		}
+	}
+}
+
+static void run_sme_tests(void)
+{
+	struct test_config test_config;
+	int i, j, k;
+
+	if (!sme_supported())
+		return;
+
+	test_config.sve_vl_in = sve_vls[0];
+	test_config.sve_vl_expected = sve_vls[0];
+
+	/*
+	 * Every SME VL/SVCR combination
+	 */
+	for (i = 0; i < sme_vl_count; i++) {
+		test_config.sme_vl_in = sme_vls[i];
+
+		for (j = 0; j < sme_vl_count; j++) {
+			test_config.sme_vl_expected = sme_vls[j];
+
+			for (k = 0; k < ARRAY_SIZE(svcr_combinations); k++) {
+				test_config.svcr_in = svcr_combinations[k].svcr_in;
+				test_config.svcr_expected = svcr_combinations[k].svcr_expected;
+
+				run_tests(base_test_defs,
+					  ARRAY_SIZE(base_test_defs),
+					  &test_config);
+				run_tests(sve_test_defs,
+					  ARRAY_SIZE(sve_test_defs),
+					  &test_config);
+				run_tests(za_test_defs,
+					  ARRAY_SIZE(za_test_defs),
+					  &test_config);
+
+				if (sme2_supported())
+					run_tests(zt_test_defs,
+						  ARRAY_SIZE(zt_test_defs),
+						  &test_config);
+			}
+		}
+	}
+}
+
+int main(void)
+{
+	struct test_config test_config;
+	struct sigaction sa;
+	int tests, ret, tmp;
+
+	srandom(getpid());
+
+	ksft_print_header();
+
+	if (sve_supported()) {
+		probe_vls("SVE", sve_vls, &sve_vl_count, PR_SVE_SET_VL);
+
+		tests = ARRAY_SIZE(base_test_defs) +
+			ARRAY_SIZE(sve_test_defs);
+		tests *= sve_vl_count * sve_vl_count;
+	} else {
+		/* Only run the FPSIMD tests */
+		sve_vl_count = 1;
+		tests = ARRAY_SIZE(base_test_defs);
+	}
+
+	if (sme_supported()) {
+		probe_vls("SME", sme_vls, &sme_vl_count, PR_SME_SET_VL);
+
+		tmp = ARRAY_SIZE(base_test_defs) + ARRAY_SIZE(sve_test_defs)
+			+ ARRAY_SIZE(za_test_defs);
+
+		if (sme2_supported())
+			tmp += ARRAY_SIZE(zt_test_defs);
+
+		tmp *= sme_vl_count * sme_vl_count;
+		tmp *= ARRAY_SIZE(svcr_combinations);
+		tests += tmp;
+	} else {
+		sme_vl_count = 1;
+	}
+
+	if (sme2_supported())
+		ksft_print_msg("SME2 supported\n");
+
+	if (fa64_supported())
+		ksft_print_msg("FA64 supported\n");
+
+	if (fpmr_supported())
+		ksft_print_msg("FPMR supported\n");
+
+	ksft_set_plan(tests);
+
+	/* Get signal handers ready before we start any children */
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handle_alarm;
+	sa.sa_flags = SA_RESTART | SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	ret = sigaction(SIGALRM, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGALRM handler: %s (%d)\n",
+			       strerror(errno), errno);
+
+	/*
+	 * Run the test set if there is no SVE or SME, with those we
+	 * have to pick a VL for each run.
+	 */
+	if (!sve_supported() && !sme_supported()) {
+		test_config.sve_vl_in = 0;
+		test_config.sve_vl_expected = 0;
+		test_config.sme_vl_in = 0;
+		test_config.sme_vl_expected = 0;
+		test_config.svcr_in = 0;
+		test_config.svcr_expected = 0;
+
+		run_tests(base_test_defs, ARRAY_SIZE(base_test_defs),
+			  &test_config);
+	}
+
+	run_sve_tests();
+	run_sme_tests();
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/arm64/fp/fp-ptrace.h b/tools/testing/selftests/arm64/fp/fp-ptrace.h
new file mode 100644
index 000000000000..c06919aaf1f7
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fp-ptrace.h
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021-3 ARM Limited.
+
+#ifndef FP_PTRACE_H
+#define FP_PTRACE_H
+
+#define SVCR_SM_SHIFT 0
+#define SVCR_ZA_SHIFT 1
+
+#define SVCR_SM (1 << SVCR_SM_SHIFT)
+#define SVCR_ZA (1 << SVCR_ZA_SHIFT)
+
+#define HAVE_SVE_SHIFT		0
+#define HAVE_SME_SHIFT		1
+#define HAVE_SME2_SHIFT		2
+#define HAVE_FA64_SHIFT		3
+#define HAVE_FPMR_SHIFT		4
+
+#define HAVE_SVE	(1 << HAVE_SVE_SHIFT)
+#define HAVE_SME	(1 << HAVE_SME_SHIFT)
+#define HAVE_SME2	(1 << HAVE_SME2_SHIFT)
+#define HAVE_FA64	(1 << HAVE_FA64_SHIFT)
+#define HAVE_FPMR	(1 << HAVE_FPMR_SHIFT)
+
+#endif
diff --git a/tools/testing/selftests/arm64/fp/fp-stress.c b/tools/testing/selftests/arm64/fp/fp-stress.c
new file mode 100644
index 000000000000..65e01aba96ff
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fp-stress.c
@@ -0,0 +1,660 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ARM Limited.
+ */
+
+#define _GNU_SOURCE
+#define _POSIX_C_SOURCE 199309L
+
+#include <errno.h>
+#include <getopt.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/epoll.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/hwcap.h>
+
+#include "kselftest.h"
+
+#define MAX_VLS 16
+
+#define SIGNAL_INTERVAL_MS 25
+#define LOG_INTERVALS (1000 / SIGNAL_INTERVAL_MS)
+
+struct child_data {
+	char *name, *output;
+	pid_t pid;
+	int stdout;
+	bool output_seen;
+	bool exited;
+	int exit_status;
+};
+
+static int epoll_fd;
+static struct child_data *children;
+static struct epoll_event *evs;
+static int tests;
+static int num_children;
+static bool terminate;
+
+static int startup_pipe[2];
+
+static int num_processors(void)
+{
+	long nproc = sysconf(_SC_NPROCESSORS_CONF);
+	if (nproc < 0) {
+		perror("Unable to read number of processors\n");
+		exit(EXIT_FAILURE);
+	}
+
+	return nproc;
+}
+
+static void child_start(struct child_data *child, const char *program)
+{
+	int ret, pipefd[2], i;
+	struct epoll_event ev;
+
+	ret = pipe(pipefd);
+	if (ret != 0)
+		ksft_exit_fail_msg("Failed to create stdout pipe: %s (%d)\n",
+				   strerror(errno), errno);
+
+	child->pid = fork();
+	if (child->pid == -1)
+		ksft_exit_fail_msg("fork() failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	if (!child->pid) {
+		/*
+		 * In child, replace stdout with the pipe, errors to
+		 * stderr from here as kselftest prints to stdout.
+		 */
+		ret = dup2(pipefd[1], 1);
+		if (ret == -1) {
+			printf("dup2() %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+
+		/*
+		 * Duplicate the read side of the startup pipe to
+		 * FD 3 so we can close everything else.
+		 */
+		ret = dup2(startup_pipe[0], 3);
+		if (ret == -1) {
+			printf("dup2() %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+
+		/*
+		 * Very dumb mechanism to clean open FDs other than
+		 * stdio. We don't want O_CLOEXEC for the pipes...
+		 */
+		for (i = 4; i < 8192; i++)
+			close(i);
+
+		/*
+		 * Read from the startup pipe, there should be no data
+		 * and we should block until it is closed. We just
+		 * carry-on on error since this isn't super critical.
+		 */
+		ret = read(3, &i, sizeof(i));
+		if (ret < 0)
+			printf("read(startp pipe) failed: %s (%d)\n",
+			       strerror(errno), errno);
+		if (ret > 0)
+			printf("%d bytes of data on startup pipe\n", ret);
+		close(3);
+
+		ret = execl(program, program, NULL);
+		printf("execl(%s) failed: %d (%s)\n",
+		       program, errno, strerror(errno));
+
+		exit(EXIT_FAILURE);
+	} else {
+		/*
+		 * In parent, remember the child and close our copy of the
+		 * write side of stdout.
+		 */
+		close(pipefd[1]);
+		child->stdout = pipefd[0];
+		child->output = NULL;
+		child->exited = false;
+		child->output_seen = false;
+
+		ev.events = EPOLLIN | EPOLLHUP;
+		ev.data.ptr = child;
+
+		ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, child->stdout, &ev);
+		if (ret < 0) {
+			ksft_exit_fail_msg("%s EPOLL_CTL_ADD failed: %s (%d)\n",
+					   child->name, strerror(errno), errno);
+		}
+	}
+}
+
+static bool child_output_read(struct child_data *child)
+{
+	char read_data[1024];
+	char work[1024];
+	int ret, len, cur_work, cur_read;
+
+	ret = read(child->stdout, read_data, sizeof(read_data));
+	if (ret < 0) {
+		if (errno == EINTR)
+			return true;
+
+		ksft_print_msg("%s: read() failed: %s (%d)\n",
+			       child->name, strerror(errno),
+			       errno);
+		return false;
+	}
+	len = ret;
+
+	child->output_seen = true;
+
+	/* Pick up any partial read */
+	if (child->output) {
+		strncpy(work, child->output, sizeof(work) - 1);
+		cur_work = strnlen(work, sizeof(work));
+		free(child->output);
+		child->output = NULL;
+	} else {
+		cur_work = 0;
+	}
+
+	cur_read = 0;
+	while (cur_read < len) {
+		work[cur_work] = read_data[cur_read++];
+
+		if (work[cur_work] == '\n') {
+			work[cur_work] = '\0';
+			ksft_print_msg("%s: %s\n", child->name, work);
+			cur_work = 0;
+		} else {
+			cur_work++;
+		}
+	}
+
+	if (cur_work) {
+		work[cur_work] = '\0';
+		ret = asprintf(&child->output, "%s", work);
+		if (ret == -1)
+			ksft_exit_fail_msg("Out of memory\n");
+	}
+
+	return false;
+}
+
+static void child_output(struct child_data *child, uint32_t events,
+			 bool flush)
+{
+	bool read_more;
+
+	if (events & EPOLLIN) {
+		do {
+			read_more = child_output_read(child);
+		} while (read_more);
+	}
+
+	if (events & EPOLLHUP) {
+		close(child->stdout);
+		child->stdout = -1;
+		flush = true;
+	}
+
+	if (flush && child->output) {
+		ksft_print_msg("%s: %s<EOF>\n", child->name, child->output);
+		free(child->output);
+		child->output = NULL;
+	}
+}
+
+static void child_tickle(struct child_data *child)
+{
+	if (child->output_seen && !child->exited)
+		kill(child->pid, SIGUSR1);
+}
+
+static void child_stop(struct child_data *child)
+{
+	if (!child->exited)
+		kill(child->pid, SIGTERM);
+}
+
+static void child_cleanup(struct child_data *child)
+{
+	pid_t ret;
+	int status;
+	bool fail = false;
+
+	if (!child->exited) {
+		do {
+			ret = waitpid(child->pid, &status, 0);
+			if (ret == -1 && errno == EINTR)
+				continue;
+
+			if (ret == -1) {
+				ksft_print_msg("waitpid(%d) failed: %s (%d)\n",
+					       child->pid, strerror(errno),
+					       errno);
+				fail = true;
+				break;
+			}
+		} while (!WIFEXITED(status));
+		child->exit_status = WEXITSTATUS(status);
+	}
+
+	if (!child->output_seen) {
+		ksft_print_msg("%s no output seen\n", child->name);
+		fail = true;
+	}
+
+	if (child->exit_status != 0) {
+		ksft_print_msg("%s exited with error code %d\n",
+			       child->name, child->exit_status);
+		fail = true;
+	}
+
+	ksft_test_result(!fail, "%s\n", child->name);
+}
+
+static void handle_child_signal(int sig, siginfo_t *info, void *context)
+{
+	int i;
+	bool found = false;
+
+	for (i = 0; i < num_children; i++) {
+		if (children[i].pid == info->si_pid) {
+			children[i].exited = true;
+			children[i].exit_status = info->si_status;
+			found = true;
+			break;
+		}
+	}
+
+	if (!found)
+		ksft_print_msg("SIGCHLD for unknown PID %d with status %d\n",
+			       info->si_pid, info->si_status);
+}
+
+static void handle_exit_signal(int sig, siginfo_t *info, void *context)
+{
+	int i;
+
+	/* If we're already exiting then don't signal again */
+	if (terminate)
+		return;
+
+	ksft_print_msg("Got signal, exiting...\n");
+
+	terminate = true;
+
+	/*
+	 * This should be redundant, the main loop should clean up
+	 * after us, but for safety stop everything we can here.
+	 */
+	for (i = 0; i < num_children; i++)
+		child_stop(&children[i]);
+}
+
+static void start_fpsimd(struct child_data *child, int cpu, int copy)
+{
+	int ret;
+
+	ret = asprintf(&child->name, "FPSIMD-%d-%d", cpu, copy);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	child_start(child, "./fpsimd-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void start_kernel(struct child_data *child, int cpu, int copy)
+{
+	int ret;
+
+	ret = asprintf(&child->name, "KERNEL-%d-%d", cpu, copy);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	child_start(child, "./kernel-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void start_sve(struct child_data *child, int vl, int cpu)
+{
+	int ret;
+
+	ret = prctl(PR_SVE_SET_VL, vl | PR_SVE_VL_INHERIT);
+	if (ret < 0)
+		ksft_exit_fail_msg("Failed to set SVE VL %d\n", vl);
+
+	ret = asprintf(&child->name, "SVE-VL-%d-%d", vl, cpu);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	child_start(child, "./sve-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void start_ssve(struct child_data *child, int vl, int cpu)
+{
+	int ret;
+
+	ret = asprintf(&child->name, "SSVE-VL-%d-%d", vl, cpu);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	ret = prctl(PR_SME_SET_VL, vl | PR_SME_VL_INHERIT);
+	if (ret < 0)
+		ksft_exit_fail_msg("Failed to set SME VL %d\n", ret);
+
+	child_start(child, "./ssve-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void start_za(struct child_data *child, int vl, int cpu)
+{
+	int ret;
+
+	ret = prctl(PR_SME_SET_VL, vl | PR_SVE_VL_INHERIT);
+	if (ret < 0)
+		ksft_exit_fail_msg("Failed to set SME VL %d\n", ret);
+
+	ret = asprintf(&child->name, "ZA-VL-%d-%d", vl, cpu);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	child_start(child, "./za-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void start_zt(struct child_data *child, int cpu)
+{
+	int ret;
+
+	ret = asprintf(&child->name, "ZT-%d", cpu);
+	if (ret == -1)
+		ksft_exit_fail_msg("asprintf() failed\n");
+
+	child_start(child, "./zt-test");
+
+	ksft_print_msg("Started %s\n", child->name);
+}
+
+static void probe_vls(int vls[], int *vl_count, int set_vl)
+{
+	unsigned int vq;
+	int vl;
+
+	*vl_count = 0;
+
+	for (vq = SVE_VQ_MAX; vq > 0; vq /= 2) {
+		vl = prctl(set_vl, vq * 16);
+		if (vl == -1)
+			ksft_exit_fail_msg("SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		vl &= PR_SVE_VL_LEN_MASK;
+
+		if (*vl_count && (vl == vls[*vl_count - 1]))
+			break;
+
+		vq = sve_vq_from_vl(vl);
+
+		vls[*vl_count] = vl;
+		*vl_count += 1;
+	}
+}
+
+/* Handle any pending output without blocking */
+static void drain_output(bool flush)
+{
+	int ret = 1;
+	int i;
+
+	while (ret > 0) {
+		ret = epoll_wait(epoll_fd, evs, tests, 0);
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_print_msg("epoll_wait() failed: %s (%d)\n",
+				       strerror(errno), errno);
+		}
+
+		for (i = 0; i < ret; i++)
+			child_output(evs[i].data.ptr, evs[i].events, flush);
+	}
+}
+
+static const struct option options[] = {
+	{ "timeout",	required_argument, NULL, 't' },
+	{ }
+};
+
+int main(int argc, char **argv)
+{
+	int ret;
+	int timeout = 10 * (1000 / SIGNAL_INTERVAL_MS);
+	int poll_interval = 5000;
+	int cpus, i, j, c;
+	int sve_vl_count, sme_vl_count;
+	bool all_children_started = false;
+	int seen_children;
+	int sve_vls[MAX_VLS], sme_vls[MAX_VLS];
+	bool have_sme2;
+	struct sigaction sa;
+
+	while ((c = getopt_long(argc, argv, "t:", options, NULL)) != -1) {
+		switch (c) {
+		case 't':
+			ret = sscanf(optarg, "%d", &timeout);
+			if (ret != 1)
+				ksft_exit_fail_msg("Failed to parse timeout %s\n",
+						   optarg);
+			break;
+		default:
+			ksft_exit_fail_msg("Unknown argument\n");
+		}
+	}
+
+	cpus = num_processors();
+	tests = 0;
+
+	if (getauxval(AT_HWCAP) & HWCAP_SVE) {
+		probe_vls(sve_vls, &sve_vl_count, PR_SVE_SET_VL);
+		tests += sve_vl_count * cpus;
+	} else {
+		sve_vl_count = 0;
+	}
+
+	if (getauxval(AT_HWCAP2) & HWCAP2_SME) {
+		probe_vls(sme_vls, &sme_vl_count, PR_SME_SET_VL);
+		tests += sme_vl_count * cpus * 2;
+	} else {
+		sme_vl_count = 0;
+	}
+
+	if (getauxval(AT_HWCAP2) & HWCAP2_SME2) {
+		tests += cpus;
+		have_sme2 = true;
+	} else {
+		have_sme2 = false;
+	}
+
+	tests += cpus * 2;
+
+	ksft_print_header();
+	ksft_set_plan(tests);
+
+	ksft_print_msg("%d CPUs, %d SVE VLs, %d SME VLs, SME2 %s\n",
+		       cpus, sve_vl_count, sme_vl_count,
+		       have_sme2 ? "present" : "absent");
+
+	if (timeout > 0)
+		ksft_print_msg("Will run for %d\n", timeout);
+	else
+		ksft_print_msg("Will run until terminated\n");
+
+	children = calloc(sizeof(*children), tests);
+	if (!children)
+		ksft_exit_fail_msg("Unable to allocate child data\n");
+
+	ret = epoll_create1(EPOLL_CLOEXEC);
+	if (ret < 0)
+		ksft_exit_fail_msg("epoll_create1() failed: %s (%d)\n",
+				   strerror(errno), ret);
+	epoll_fd = ret;
+
+	/* Create a pipe which children will block on before execing */
+	ret = pipe(startup_pipe);
+	if (ret != 0)
+		ksft_exit_fail_msg("Failed to create startup pipe: %s (%d)\n",
+				   strerror(errno), errno);
+
+	/* Get signal handers ready before we start any children */
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handle_exit_signal;
+	sa.sa_flags = SA_RESTART | SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	ret = sigaction(SIGINT, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGINT handler: %s (%d)\n",
+			       strerror(errno), errno);
+	ret = sigaction(SIGTERM, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGTERM handler: %s (%d)\n",
+			       strerror(errno), errno);
+	sa.sa_sigaction = handle_child_signal;
+	ret = sigaction(SIGCHLD, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGCHLD handler: %s (%d)\n",
+			       strerror(errno), errno);
+
+	evs = calloc(tests, sizeof(*evs));
+	if (!evs)
+		ksft_exit_fail_msg("Failed to allocate %d epoll events\n",
+				   tests);
+
+	for (i = 0; i < cpus; i++) {
+		start_fpsimd(&children[num_children++], i, 0);
+		start_kernel(&children[num_children++], i, 0);
+
+		for (j = 0; j < sve_vl_count; j++)
+			start_sve(&children[num_children++], sve_vls[j], i);
+
+		for (j = 0; j < sme_vl_count; j++) {
+			start_ssve(&children[num_children++], sme_vls[j], i);
+			start_za(&children[num_children++], sme_vls[j], i);
+		}
+
+		if (have_sme2)
+			start_zt(&children[num_children++], i);
+	}
+
+	/*
+	 * All children started, close the startup pipe and let them
+	 * run.
+	 */
+	close(startup_pipe[0]);
+	close(startup_pipe[1]);
+
+	for (;;) {
+		/* Did we get a signal asking us to exit? */
+		if (terminate)
+			break;
+
+		/*
+		 * Timeout is counted in poll intervals with no
+		 * output, the tests print during startup then are
+		 * silent when running so this should ensure they all
+		 * ran enough to install the signal handler, this is
+		 * especially useful in emulation where we will both
+		 * be slow and likely to have a large set of VLs.
+		 */
+		ret = epoll_wait(epoll_fd, evs, tests, poll_interval);
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("epoll_wait() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		/* Output? */
+		if (ret > 0) {
+			for (i = 0; i < ret; i++) {
+				child_output(evs[i].data.ptr, evs[i].events,
+					     false);
+			}
+			continue;
+		}
+
+		/* Otherwise epoll_wait() timed out */
+
+		/*
+		 * If the child processes have not produced output they
+		 * aren't actually running the tests yet .
+		 */
+		if (!all_children_started) {
+			seen_children = 0;
+
+			for (i = 0; i < num_children; i++)
+				if (children[i].output_seen ||
+				    children[i].exited)
+					seen_children++;
+
+			if (seen_children != num_children) {
+				ksft_print_msg("Waiting for %d children\n",
+					       num_children - seen_children);
+				continue;
+			}
+
+			all_children_started = true;
+			poll_interval = SIGNAL_INTERVAL_MS;
+		}
+
+		if ((timeout % LOG_INTERVALS) == 0)
+			ksft_print_msg("Sending signals, timeout remaining: %d\n",
+				       timeout);
+
+		for (i = 0; i < num_children; i++)
+			child_tickle(&children[i]);
+
+		/* Negative timeout means run indefinitely */
+		if (timeout < 0)
+			continue;
+		if (--timeout == 0)
+			break;
+	}
+
+	ksft_print_msg("Finishing up...\n");
+	terminate = true;
+
+	for (i = 0; i < tests; i++)
+		child_stop(&children[i]);
+
+	drain_output(false);
+
+	for (i = 0; i < tests; i++)
+		child_cleanup(&children[i]);
+
+	drain_output(true);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/arm64/fp/fpsimd-stress b/tools/testing/selftests/arm64/fp/fpsimd-stress
new file mode 100755
index 000000000000..781b5b022eaf
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fpsimd-stress
@@ -0,0 +1,60 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2015-2019 ARM Limited.
+# Original author: Dave Martin <Dave.Martin@arm.com>
+
+set -ue
+
+NR_CPUS=`nproc`
+
+pids=
+logs=
+
+cleanup () {
+	trap - INT TERM CHLD
+	set +e
+
+	if [ -n "$pids" ]; then
+		kill $pids
+		wait $pids
+		pids=
+	fi
+
+	if [ -n "$logs" ]; then
+		cat $logs
+		rm $logs
+		logs=
+	fi
+}
+
+interrupt () {
+	cleanup
+	exit 0
+}
+
+child_died () {
+	cleanup
+	exit 1
+}
+
+trap interrupt INT TERM EXIT
+trap child_died CHLD
+
+for x in `seq 0 $((NR_CPUS * 4))`; do
+	log=`mktemp`
+	logs=$logs\ $log
+	./fpsimd-test >$log &
+	pids=$pids\ $!
+done
+
+# Wait for all child processes to be created:
+sleep 10
+
+while :; do
+	kill -USR1 $pids
+done &
+pids=$pids\ $!
+
+wait
+
+exit 1
diff --git a/tools/testing/selftests/arm64/fp/fpsimd-test.S b/tools/testing/selftests/arm64/fp/fpsimd-test.S
new file mode 100644
index 000000000000..f89d67894c2e
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/fpsimd-test.S
@@ -0,0 +1,332 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015-2019 ARM Limited.
+// Original author: Dave Martin <Dave.Martin@arm.com>
+//
+// Simple FPSIMD context switch test
+// Repeatedly writes unique test patterns into each FPSIMD register
+// and reads them back to verify integrity.
+//
+// for x in `seq 1 NR_CPUS`; do fpsimd-test & pids=$pids\ $! ; done
+// (leave it running for as long as you want...)
+// kill $pids
+
+#include <asm/unistd.h>
+#include "assembler.h"
+#include "asm-offsets.h"
+
+#define NVR	32
+#define MAXVL_B	(128 / 8)
+
+.macro _vldr Vn:req, Xt:req
+	ld1	{v\Vn\().2d}, [x\Xt]
+.endm
+
+.macro _vstr Vn:req, Xt:req
+	st1	{v\Vn\().2d}, [x\Xt]
+.endm
+
+// Generate accessor functions to read/write programmatically selected
+// FPSIMD registers.
+// x0 is the register index to access
+// x1 is the memory address to read from (getv,setp) or store to (setv,setp)
+// All clobber x0-x2
+define_accessor setv, NVR, _vldr
+define_accessor getv, NVR, _vstr
+
+// Declare some storate space to shadow the SVE register contents:
+.pushsection .text
+.data
+.align 4
+vref:
+	.space	MAXVL_B * NVR
+scratch:
+	.space	MAXVL_B
+.popsection
+
+// Generate a test pattern for storage in SVE registers
+// x0: pid	(16 bits)
+// x1: register number (6 bits)
+// x2: generation (4 bits)
+function pattern
+	orr	w1, w0, w1, lsl #16
+	orr	w2, w1, w2, lsl #28
+
+	ldr	x0, =scratch
+	mov	w1, #MAXVL_B / 4
+
+0:	str	w2, [x0], #4
+	add	w2, w2, #(1 << 22)
+	subs	w1, w1, #1
+	bne	0b
+
+	ret
+endfunction
+
+// Get the address of shadow data for FPSIMD V-register V<xn>
+.macro _adrv xd, xn, nrtmp
+	ldr	\xd, =vref
+	mov	x\nrtmp, #16
+	madd	\xd, x\nrtmp, \xn, \xd
+.endm
+
+// Set up test pattern in a FPSIMD V-register
+// x0: pid
+// x1: register number
+// x2: generation
+function setup_vreg
+	mov	x4, x30
+
+	mov	x6, x1
+	bl	pattern
+	_adrv	x0, x6, 2
+	mov	x5, x0
+	ldr	x1, =scratch
+	bl	memcpy
+
+	mov	x0, x6
+	mov	x1, x5
+	bl	setv
+
+	ret	x4
+endfunction
+
+// Trivial memory compare: compare x2 bytes starting at address x0 with
+// bytes starting at address x1.
+// Returns only if all bytes match; otherwise, the program is aborted.
+// Clobbers x0-x5.
+function memcmp
+	cbz	x2, 1f
+
+	mov	x5, #0
+0:	ldrb	w3, [x0, x5]
+	ldrb	w4, [x1, x5]
+	add	x5, x5, #1
+	cmp	w3, w4
+	b.ne	barf
+	subs	x2, x2, #1
+	b.ne	0b
+
+1:	ret
+endfunction
+
+// Verify that a FPSIMD V-register matches its shadow in memory, else abort
+// x0: reg number
+// Clobbers x0-x5.
+function check_vreg
+	mov	x3, x30
+
+	_adrv	x5, x0, 6
+	mov	x4, x0
+	ldr	x7, =scratch
+
+	mov	x0, x7
+	mov	x1, x6
+	bl	memfill_ae
+
+	mov	x0, x4
+	mov	x1, x7
+	bl	getv
+
+	mov	x0, x5
+	mov	x1, x7
+	mov	x2, x6
+	mov	x30, x3
+	b	memcmp
+endfunction
+
+// Modify live register state, the signal return will undo our changes
+function irritator_handler
+	// Increment the irritation signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	// Corrupt some random V-regs
+	movi	v0.8b, #7
+	movi	v9.16b, #9
+	movi	v31.8b, #31
+
+	ret
+endfunction
+
+function tickle_handler
+	// Increment the signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	ret
+endfunction
+
+function terminate_handler
+	mov	w21, w0
+	mov	x20, x2
+
+	puts	"Terminated by signal "
+	mov	w0, w21
+	bl	putdec
+	puts	", no error, iterations="
+	ldr	x0, [x20, #ucontext_regs + 8 * 22]
+	bl	putdec
+	puts	", signals="
+	ldr	x0, [x20, #ucontext_regs + 8 * 23]
+	bl	putdecn
+
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
+endfunction
+
+// w0: signal number
+// x1: sa_action
+// w2: sa_flags
+// Clobbers x0-x6,x8
+function setsignal
+	str	x30, [sp, #-((sa_sz + 15) / 16 * 16 + 16)]!
+
+	mov	w4, w0
+	mov	x5, x1
+	mov	w6, w2
+
+	add	x0, sp, #16
+	mov	x1, #sa_sz
+	bl	memclr
+
+	mov	w0, w4
+	add	x1, sp, #16
+	str	w6, [x1, #sa_flags]
+	str	x5, [x1, #sa_handler]
+	mov	x2, #0
+	mov	x3, #sa_mask_sz
+	mov	x8, #__NR_rt_sigaction
+	svc	#0
+
+	cbz	w0, 1f
+
+	puts	"sigaction failure\n"
+	b	.Labort
+
+1:	ldr	x30, [sp], #((sa_sz + 15) / 16 * 16 + 16)
+	ret
+endfunction
+
+// Main program entry point
+.globl _start
+function _start
+	enable_gcs
+
+	mov	x23, #0		// signal count
+
+	mov	w0, #SIGINT
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGTERM
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGUSR1
+	adr	x1, irritator_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	mov	w0, #SIGUSR2
+	adr	x1, tickle_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	// Sanity-check and report the vector length
+
+	mov	x19, #128
+	cmp	x19, #128
+	b.lo	1f
+	cmp	x19, #2048
+	b.hi	1f
+	tst	x19, #(8 - 1)
+	b.eq	2f
+
+1:	puts	"Bad vector length: "
+	mov	x0, x19
+	bl	putdecn
+	b	.Labort
+
+2:	puts	"Vector length:\t"
+	mov	x0, x19
+	bl	putdec
+	puts	" bits\n"
+
+	// Obtain our PID, to ensure test pattern uniqueness between processes
+
+	mov	x8, #__NR_getpid
+	svc	#0
+	mov	x20, x0
+
+	puts	"PID:\t"
+	mov	x0, x20
+	bl	putdecn
+
+	mov	x22, #0		// generation number, increments per iteration
+.Ltest_loop:
+
+	mov	x21, #0		// Set up V-regs & shadow with test pattern
+0:	mov	x0, x20
+	mov	x1, x21
+	and	x2, x22, #0xf
+	bl	setup_vreg
+	add	x21, x21, #1
+	cmp	x21, #NVR
+	b.lo	0b
+
+// Can't do this when SVE state is volatile across SVC:
+	mov	x8, #__NR_sched_yield	// Encourage preemption
+	svc	#0
+
+	mov	x21, #0
+0:	mov	x0, x21
+	bl	check_vreg
+	add	x21, x21, #1
+	cmp	x21, #NVR
+	b.lo	0b
+
+	add	x22, x22, #1
+	b	.Ltest_loop
+
+.Labort:
+	mov	x0, #0
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+endfunction
+
+function barf
+	mov	x10, x0	// expected data
+	mov	x11, x1	// actual data
+	mov	x12, x2	// data size
+
+	puts	"Mismatch: PID="
+	mov	x0, x20
+	bl	putdec
+	puts	", iteration="
+	mov	x0, x22
+	bl	putdec
+	puts	", reg="
+	mov	x0, x21
+	bl	putdecn
+	puts	"\tExpected ["
+	mov	x0, x10
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n\tGot      ["
+	mov	x0, x11
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n"
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
diff --git a/tools/testing/selftests/arm64/fp/kernel-test.c b/tools/testing/selftests/arm64/fp/kernel-test.c
new file mode 100644
index 000000000000..0c40007d1282
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/kernel-test.c
@@ -0,0 +1,326 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024 ARM Limited.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+
+#include <linux/kernel.h>
+#include <linux/if_alg.h>
+
+#define DATA_SIZE (16 * 4096)
+
+static int base, sock;
+
+static int digest_len;
+static char *ref;
+static char *digest;
+static char *alg_name;
+
+static struct iovec data_iov;
+static int zerocopy[2];
+static int sigs;
+static int iter;
+
+static void handle_exit_signal(int sig, siginfo_t *info, void *context)
+{
+	printf("Terminated by signal %d, iterations=%d, signals=%d\n",
+	       sig, iter, sigs);
+	exit(0);
+}
+
+static void handle_kick_signal(int sig, siginfo_t *info, void *context)
+{
+	sigs++;
+}
+
+static char *drivers[] = {
+	"sha1-ce",
+	"sha224-arm64",
+	"sha224-arm64-neon",
+	"sha224-ce",
+	"sha256-arm64",
+	"sha256-arm64-neon",
+	"sha256-ce",
+	"sha384-ce",
+	"sha512-ce",
+	"sha3-224-ce",
+	"sha3-256-ce",
+	"sha3-384-ce",
+	"sha3-512-ce",
+	"sm3-ce",
+	"sm3-neon",
+};
+
+static bool create_socket(void)
+{
+	FILE *proc;
+	struct sockaddr_alg addr;
+	char buf[1024];
+	char *c, *driver_name;
+	bool is_shash, match;
+	int ret, i;
+
+	ret = socket(AF_ALG, SOCK_SEQPACKET, 0);
+	if (ret < 0) {
+		if (errno == EAFNOSUPPORT) {
+			printf("AF_ALG not supported\n");
+			return false;
+		}
+
+		printf("Failed to create AF_ALG socket: %s (%d)\n",
+		       strerror(errno), errno);
+		return false;
+	}
+	base = ret;
+
+	memset(&addr, 0, sizeof(addr));
+	addr.salg_family = AF_ALG;
+	strncpy((char *)addr.salg_type, "hash", sizeof(addr.salg_type));
+
+	proc = fopen("/proc/crypto", "r");
+	if (!proc) {
+		printf("Unable to open /proc/crypto\n");
+		return false;
+	}
+
+	driver_name = NULL;
+	is_shash = false;
+	match = false;
+
+	/* Look through /proc/crypto for a driver with kernel mode FP usage */
+	while (!match) {
+		c = fgets(buf, sizeof(buf), proc);
+		if (!c) {
+			if (feof(proc)) {
+				printf("Nothing found in /proc/crypto\n");
+				return false;
+			}
+			continue;
+		}
+
+		/* Algorithm descriptions are separated by a blank line */
+		if (*c == '\n') {
+			if (is_shash && driver_name) {
+				for (i = 0; i < ARRAY_SIZE(drivers); i++) {
+					if (strcmp(drivers[i],
+						   driver_name) == 0) {
+						match = true;
+					}
+				}
+			}
+
+			if (!match) {
+				digest_len = 0;
+
+				free(driver_name);
+				driver_name = NULL;
+
+				free(alg_name);
+				alg_name = NULL;
+
+				is_shash = false;
+			}
+			continue;
+		}
+
+		/* Remove trailing newline */
+		c = strchr(buf, '\n');
+		if (c)
+			*c = '\0';
+
+		/* Find the field/value separator and start of the value */
+		c = strchr(buf, ':');
+		if (!c)
+			continue;
+		c += 2;
+
+		if (strncmp(buf, "digestsize", strlen("digestsize")) == 0)
+			sscanf(c, "%d", &digest_len);
+
+		if (strncmp(buf, "name", strlen("name")) == 0)
+			alg_name = strdup(c);
+
+		if (strncmp(buf, "driver", strlen("driver")) == 0)
+			driver_name = strdup(c);
+
+		if (strncmp(buf, "type", strlen("type")) == 0)
+			if (strncmp(c, "shash", strlen("shash")) == 0)
+				is_shash = true;
+	}
+
+	strncpy((char *)addr.salg_name, alg_name,
+		sizeof(addr.salg_name) - 1);
+
+	ret = bind(base, (struct sockaddr *)&addr, sizeof(addr));
+	if (ret < 0) {
+		printf("Failed to bind %s: %s (%d)\n",
+		       addr.salg_name, strerror(errno), errno);
+		return false;
+	}
+
+	ret = accept(base, NULL, 0);
+	if (ret < 0) {
+		printf("Failed to accept %s: %s (%d)\n",
+		       addr.salg_name, strerror(errno), errno);
+		return false;
+	}
+
+	sock = ret;
+
+	ret = pipe(zerocopy);
+	if (ret != 0) {
+		printf("Failed to create zerocopy pipe: %s (%d)\n",
+		       strerror(errno), errno);
+		return false;
+	}
+
+	ref = malloc(digest_len);
+	if (!ref) {
+		printf("Failed to allocate %d byte reference\n", digest_len);
+		return false;
+	}
+
+	digest = malloc(digest_len);
+	if (!digest) {
+		printf("Failed to allocate %d byte digest\n", digest_len);
+		return false;
+	}
+
+	return true;
+}
+
+static bool compute_digest(void *buf)
+{
+	struct iovec iov;
+	int ret, wrote;
+
+	iov = data_iov;
+	while (iov.iov_len) {
+		ret = vmsplice(zerocopy[1], &iov, 1, SPLICE_F_GIFT);
+		if (ret < 0) {
+			printf("Failed to send buffer: %s (%d)\n",
+			       strerror(errno), errno);
+			return false;
+		}
+
+		wrote = ret;
+		ret = splice(zerocopy[0], NULL, sock, NULL, wrote, 0);
+		if (ret < 0) {
+			printf("Failed to splice buffer: %s (%d)\n",
+			       strerror(errno), errno);
+		} else if (ret != wrote) {
+			printf("Short splice: %d < %d\n", ret, wrote);
+		}
+
+		iov.iov_len -= wrote;
+		iov.iov_base += wrote;
+	}
+
+reread:
+	ret = recv(sock, buf, digest_len, 0);
+	if (ret == 0) {
+		printf("No digest returned\n");
+		return false;
+	}
+	if (ret != digest_len) {
+		if (errno == -EAGAIN)
+			goto reread;
+		printf("Failed to get digest: %s (%d)\n",
+		       strerror(errno), errno);
+		return false;
+	}
+
+	return true;
+}
+
+int main(void)
+{
+	char *data;
+	struct sigaction sa;
+	int ret;
+
+	/* Ensure we have unbuffered output */
+	setvbuf(stdout, NULL, _IOLBF, 0);
+
+	/* The parent will communicate with us via signals */
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handle_exit_signal;
+	sa.sa_flags = SA_RESTART | SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	ret = sigaction(SIGTERM, &sa, NULL);
+	if (ret < 0)
+		printf("Failed to install SIGTERM handler: %s (%d)\n",
+		       strerror(errno), errno);
+
+	sa.sa_sigaction = handle_kick_signal;
+	ret = sigaction(SIGUSR1, &sa, NULL);
+	if (ret < 0)
+		printf("Failed to install SIGUSR1 handler: %s (%d)\n",
+		       strerror(errno), errno);
+	ret = sigaction(SIGUSR2, &sa, NULL);
+	if (ret < 0)
+		printf("Failed to install SIGUSR2 handler: %s (%d)\n",
+		       strerror(errno), errno);
+
+	data = malloc(DATA_SIZE);
+	if (!data) {
+		printf("Failed to allocate data buffer\n");
+		return EXIT_FAILURE;
+	}
+	memset(data, 0, DATA_SIZE);
+
+	data_iov.iov_base = data;
+	data_iov.iov_len = DATA_SIZE;
+
+	/*
+	 * If we can't create a socket assume it's a lack of system
+	 * support and fall back to a basic FPSIMD test for the
+	 * benefit of fp-stress.
+	 */
+	if (!create_socket()) {
+		execl("./fpsimd-test", "./fpsimd-test", NULL);
+		printf("Failed to fall back to fspimd-test: %d (%s)\n",
+			errno, strerror(errno));
+		return EXIT_FAILURE;
+	}
+
+	/*
+	 * Compute a reference digest we hope is repeatable, we do
+	 * this at runtime partly to make it easier to play with
+	 * parameters.
+	 */
+	if (!compute_digest(ref)) {
+		printf("Failed to compute reference digest\n");
+		return EXIT_FAILURE;
+	}
+
+	printf("AF_ALG using %s\n", alg_name);
+
+	while (true) {
+		if (!compute_digest(digest)) {
+			printf("Failed to compute digest, iter=%d\n", iter);
+			return EXIT_FAILURE;
+		}
+
+		if (memcmp(ref, digest, digest_len) != 0) {
+			printf("Digest mismatch, iter=%d\n", iter);
+			return EXIT_FAILURE;
+		}
+
+		iter++;
+	}
+
+	return EXIT_FAILURE;
+}
diff --git a/tools/testing/selftests/arm64/fp/rdvl-sme.c b/tools/testing/selftests/arm64/fp/rdvl-sme.c
new file mode 100644
index 000000000000..49b0b2e08bac
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/rdvl-sme.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <stdio.h>
+
+#include "rdvl.h"
+
+int main(void)
+{
+	int vl = rdvl_sme();
+
+	printf("%d\n", vl);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/fp/rdvl-sve.c b/tools/testing/selftests/arm64/fp/rdvl-sve.c
new file mode 100644
index 000000000000..7f8a13a18f5d
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/rdvl-sve.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <stdio.h>
+
+#include "rdvl.h"
+
+int main(void)
+{
+	int vl = rdvl_sve();
+
+	printf("%d\n", vl);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/fp/rdvl.S b/tools/testing/selftests/arm64/fp/rdvl.S
new file mode 100644
index 000000000000..20dc29996dc6
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/rdvl.S
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021 ARM Limited.
+
+#include "sme-inst.h"
+
+.arch_extension sve
+
+.globl rdvl_sve
+rdvl_sve:
+	hint	34			// BTI C
+	rdvl	x0, #1
+	ret
+
+.globl rdvl_sme
+rdvl_sme:
+	hint	34			// BTI C
+
+	rdsvl	0, 1
+
+	ret
diff --git a/tools/testing/selftests/arm64/fp/rdvl.h b/tools/testing/selftests/arm64/fp/rdvl.h
new file mode 100644
index 000000000000..5d323679fbc9
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/rdvl.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef RDVL_H
+#define RDVL_H
+
+int rdvl_sme(void);
+int rdvl_sve(void);
+
+#endif
diff --git a/tools/testing/selftests/arm64/fp/sme-inst.h b/tools/testing/selftests/arm64/fp/sme-inst.h
new file mode 100644
index 000000000000..85b9184e0835
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/sme-inst.h
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021-2 ARM Limited.
+// Original author: Mark Brown <broonie@kernel.org>
+
+#ifndef SME_INST_H
+#define SME_INST_H
+
+#define REG_FPMR                                        S3_3_C4_C4_2
+
+/*
+ * RDSVL X\nx, #\imm
+ */
+.macro rdsvl nx, imm
+	.inst	0x4bf5800			\
+		| (\imm << 5)			\
+		| (\nx)
+.endm
+
+.macro smstop
+	msr	S0_3_C4_C6_3, xzr
+.endm
+
+.macro smstart_za
+	msr	S0_3_C4_C5_3, xzr
+.endm
+
+.macro smstart_sm
+	msr	S0_3_C4_C3_3, xzr
+.endm
+
+/*
+ * LDR (vector to ZA array):
+ *	LDR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
+ */
+.macro _ldr_za nw, nxbase, offset=0
+	.inst	0xe1000000			\
+		| (((\nw) & 3) << 13)		\
+		| ((\nxbase) << 5)		\
+		| ((\offset) & 7)
+.endm
+
+/*
+ * STR (vector from ZA array):
+ *	STR ZA[\nw, #\offset], [X\nxbase, #\offset, MUL VL]
+ */
+.macro _str_za nw, nxbase, offset=0
+	.inst	0xe1200000			\
+		| (((\nw) & 3) << 13)		\
+		| ((\nxbase) << 5)		\
+		| ((\offset) & 7)
+.endm
+
+/*
+ * LDR (ZT0)
+ *
+ *	LDR ZT0, nx
+ */
+.macro _ldr_zt nx
+	.inst	0xe11f8000			\
+		| (((\nx) & 0x1f) << 5)
+.endm
+
+/*
+ * STR (ZT0)
+ *
+ *	STR ZT0, nx
+ */
+.macro _str_zt nx
+	.inst	0xe13f8000			\
+		| (((\nx) & 0x1f) << 5)
+.endm
+
+#endif
diff --git a/tools/testing/selftests/arm64/fp/ssve-stress b/tools/testing/selftests/arm64/fp/ssve-stress
new file mode 100644
index 000000000000..e2bd2cc184ad
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/ssve-stress
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2015-2019 ARM Limited.
+# Original author: Dave Martin <Dave.Martin@arm.com>
+
+set -ue
+
+NR_CPUS=`nproc`
+
+pids=
+logs=
+
+cleanup () {
+	trap - INT TERM CHLD
+	set +e
+
+	if [ -n "$pids" ]; then
+		kill $pids
+		wait $pids
+		pids=
+	fi
+
+	if [ -n "$logs" ]; then
+		cat $logs
+		rm $logs
+		logs=
+	fi
+}
+
+interrupt () {
+	cleanup
+	exit 0
+}
+
+child_died () {
+	cleanup
+	exit 1
+}
+
+trap interrupt INT TERM EXIT
+
+for x in `seq 0 $((NR_CPUS * 4))`; do
+	log=`mktemp`
+	logs=$logs\ $log
+	./ssve-test >$log &
+	pids=$pids\ $!
+done
+
+# Wait for all child processes to be created:
+sleep 10
+
+while :; do
+	kill -USR1 $pids
+done &
+pids=$pids\ $!
+
+wait
+
+exit 1
diff --git a/tools/testing/selftests/arm64/fp/sve-probe-vls.c b/tools/testing/selftests/arm64/fp/sve-probe-vls.c
new file mode 100644
index 000000000000..df0c1b6eb114
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/sve-probe-vls.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015-2020 ARM Limited.
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <asm/sigcontext.h>
+
+#include "kselftest.h"
+#include "rdvl.h"
+
+int main(int argc, char **argv)
+{
+	unsigned int vq;
+	int vl;
+	static unsigned int vqs[SVE_VQ_MAX];
+	unsigned int nvqs = 0;
+
+	ksft_print_header();
+	ksft_set_plan(2);
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_SVE))
+		ksft_exit_skip("SVE not available\n");
+
+	/*
+	 * Enumerate up to SVE_VQ_MAX vector lengths
+	 */
+	for (vq = SVE_VQ_MAX; vq > 0; --vq) {
+		vl = prctl(PR_SVE_SET_VL, vq * 16);
+		if (vl == -1)
+			ksft_exit_fail_msg("PR_SVE_SET_VL failed: %s (%d)\n",
+					   strerror(errno), errno);
+
+		vl &= PR_SVE_VL_LEN_MASK;
+
+		if (rdvl_sve() != vl)
+			ksft_exit_fail_msg("PR_SVE_SET_VL reports %d, RDVL %d\n",
+					   vl, rdvl_sve());
+
+		if (!sve_vl_valid(vl))
+			ksft_exit_fail_msg("VL %d invalid\n", vl);
+		vq = sve_vq_from_vl(vl);
+
+		if (!(nvqs < SVE_VQ_MAX))
+			ksft_exit_fail_msg("Too many VLs %u >= SVE_VQ_MAX\n",
+					   nvqs);
+		vqs[nvqs++] = vq;
+	}
+	ksft_test_result_pass("Enumerated %d vector lengths\n", nvqs);
+	ksft_test_result_pass("All vector lengths valid\n");
+
+	/* Print out the vector lengths in ascending order: */
+	while (nvqs--)
+		ksft_print_msg("%u\n", 16 * vqs[nvqs]);
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/arm64/fp/sve-ptrace.c b/tools/testing/selftests/arm64/fp/sve-ptrace.c
new file mode 100644
index 000000000000..28f6b996c5e2
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/sve-ptrace.c
@@ -0,0 +1,919 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015-2021 ARM Limited.
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/sigcontext.h>
+#include <asm/ptrace.h>
+
+#include "kselftest.h"
+
+/* <linux/elf.h> and <sys/auxv.h> don't like each other, so: */
+#ifndef NT_ARM_SVE
+#define NT_ARM_SVE 0x405
+#endif
+
+#ifndef NT_ARM_SSVE
+#define NT_ARM_SSVE 0x40b
+#endif
+
+/*
+ * The architecture defines the maximum VQ as 16 but for extensibility
+ * the kernel specifies the SVE_VQ_MAX as 512 resulting in us running
+ * a *lot* more tests than are useful if we use it.  Until the
+ * architecture is extended let's limit our coverage to what is
+ * currently allowed, plus one extra to ensure we cover constraining
+ * the VL as expected.
+ */
+#define TEST_VQ_MAX 17
+
+struct vec_type {
+	const char *name;
+	unsigned long hwcap_type;
+	unsigned long hwcap;
+	int regset;
+	int prctl_set;
+};
+
+static const struct vec_type vec_types[] = {
+	{
+		.name = "SVE",
+		.hwcap_type = AT_HWCAP,
+		.hwcap = HWCAP_SVE,
+		.regset = NT_ARM_SVE,
+		.prctl_set = PR_SVE_SET_VL,
+	},
+	{
+		.name = "Streaming SVE",
+		.hwcap_type = AT_HWCAP2,
+		.hwcap = HWCAP2_SME,
+		.regset = NT_ARM_SSVE,
+		.prctl_set = PR_SME_SET_VL,
+	},
+};
+
+#define VL_TESTS (((TEST_VQ_MAX - SVE_VQ_MIN) + 1) * 4)
+#define FLAG_TESTS 4
+#define FPSIMD_TESTS 2
+
+#define EXPECTED_TESTS ((VL_TESTS + FLAG_TESTS + FPSIMD_TESTS) * ARRAY_SIZE(vec_types))
+
+static void fill_buf(char *buf, size_t size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		buf[i] = random();
+}
+
+static int do_child(void)
+{
+	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
+		ksft_exit_fail_msg("ptrace(PTRACE_TRACEME) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	if (raise(SIGSTOP))
+		ksft_exit_fail_msg("raise(SIGSTOP) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	return EXIT_SUCCESS;
+}
+
+static int get_fpsimd(pid_t pid, struct user_fpsimd_state *fpsimd)
+{
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = fpsimd;
+	iov.iov_len = sizeof(*fpsimd);
+	ret = ptrace(PTRACE_GETREGSET, pid, NT_PRFPREG, &iov);
+	if (ret == -1)
+		ksft_perror("ptrace(PTRACE_GETREGSET)");
+	return ret;
+}
+
+static int set_fpsimd(pid_t pid, struct user_fpsimd_state *fpsimd)
+{
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = fpsimd;
+	iov.iov_len = sizeof(*fpsimd);
+	ret = ptrace(PTRACE_SETREGSET, pid, NT_PRFPREG, &iov);
+	if (ret == -1)
+		ksft_perror("ptrace(PTRACE_SETREGSET)");
+	return ret;
+}
+
+static struct user_sve_header *get_sve(pid_t pid, const struct vec_type *type,
+				       void **buf, size_t *size)
+{
+	struct user_sve_header *sve;
+	void *p;
+	size_t sz = sizeof(*sve);
+	struct iovec iov;
+	int ret;
+
+	while (1) {
+		if (*size < sz) {
+			p = realloc(*buf, sz);
+			if (!p) {
+				errno = ENOMEM;
+				goto error;
+			}
+
+			*buf = p;
+			*size = sz;
+		}
+
+		iov.iov_base = *buf;
+		iov.iov_len = sz;
+		ret = ptrace(PTRACE_GETREGSET, pid, type->regset, &iov);
+		if (ret) {
+			ksft_perror("ptrace(PTRACE_GETREGSET)");
+			goto error;
+		}
+
+		sve = *buf;
+		if (sve->size <= sz)
+			break;
+
+		sz = sve->size;
+	}
+
+	return sve;
+
+error:
+	return NULL;
+}
+
+static int set_sve(pid_t pid, const struct vec_type *type,
+		   const struct user_sve_header *sve)
+{
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = (void *)sve;
+	iov.iov_len = sve->size;
+	ret = ptrace(PTRACE_SETREGSET, pid, type->regset, &iov);
+	if (ret == -1)
+		ksft_perror("ptrace(PTRACE_SETREGSET)");
+	return ret;
+}
+
+/* A read operation fails */
+static void read_fails(pid_t child, const struct vec_type *type)
+{
+	struct user_sve_header *new_sve = NULL;
+	size_t new_sve_size = 0;
+	void *ret;
+
+	ret = get_sve(child, type, (void **)&new_sve, &new_sve_size);
+
+	ksft_test_result(ret == NULL, "%s unsupported read fails\n",
+			 type->name);
+
+	free(new_sve);
+}
+
+/* A write operation fails */
+static void write_fails(pid_t child, const struct vec_type *type)
+{
+	struct user_sve_header sve;
+	int ret;
+
+	/* Just the header, no data */
+	memset(&sve, 0, sizeof(sve));
+	sve.size = sizeof(sve);
+	sve.flags = SVE_PT_REGS_SVE;
+	sve.vl = SVE_VL_MIN;
+	ret = set_sve(child, type, &sve);
+
+	ksft_test_result(ret != 0, "%s unsupported write fails\n",
+			 type->name);
+}
+
+/* Validate setting and getting the inherit flag */
+static void ptrace_set_get_inherit(pid_t child, const struct vec_type *type)
+{
+	struct user_sve_header sve;
+	struct user_sve_header *new_sve = NULL;
+	size_t new_sve_size = 0;
+	int ret;
+
+	/* First set the flag */
+	memset(&sve, 0, sizeof(sve));
+	sve.size = sizeof(sve);
+	sve.vl = sve_vl_from_vq(SVE_VQ_MIN);
+	sve.flags = SVE_PT_VL_INHERIT | SVE_PT_REGS_SVE;
+	ret = set_sve(child, type, &sve);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set %s SVE_PT_VL_INHERIT\n",
+				      type->name);
+		return;
+	}
+
+	/*
+	 * Read back the new register state and verify that we have
+	 * set the flags we expected.
+	 */
+	if (!get_sve(child, type, (void **)&new_sve, &new_sve_size)) {
+		ksft_test_result_fail("Failed to read %s SVE flags\n",
+				      type->name);
+		return;
+	}
+
+	ksft_test_result(new_sve->flags & SVE_PT_VL_INHERIT,
+			 "%s SVE_PT_VL_INHERIT set\n", type->name);
+
+	/* Now clear */
+	sve.flags &= ~SVE_PT_VL_INHERIT;
+	ret = set_sve(child, type, &sve);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to clear %s SVE_PT_VL_INHERIT\n",
+				      type->name);
+		return;
+	}
+
+	if (!get_sve(child, type, (void **)&new_sve, &new_sve_size)) {
+		ksft_test_result_fail("Failed to read %s SVE flags\n",
+				      type->name);
+		return;
+	}
+
+	ksft_test_result(!(new_sve->flags & SVE_PT_VL_INHERIT),
+			 "%s SVE_PT_VL_INHERIT cleared\n", type->name);
+
+	free(new_sve);
+}
+
+/* Validate attempting to set the specfied VL via ptrace */
+static void ptrace_set_get_vl(pid_t child, const struct vec_type *type,
+			      unsigned int vl, bool *supported)
+{
+	struct user_sve_header sve;
+	struct user_sve_header *new_sve = NULL;
+	size_t new_sve_size = 0;
+	int ret, prctl_vl;
+
+	*supported = false;
+
+	/* Check if the VL is supported in this process */
+	prctl_vl = prctl(type->prctl_set, vl);
+	if (prctl_vl == -1)
+		ksft_exit_fail_msg("prctl(PR_%s_SET_VL) failed: %s (%d)\n",
+				   type->name, strerror(errno), errno);
+
+	/* If the VL is not supported then a supported VL will be returned */
+	*supported = (prctl_vl == vl);
+
+	/* Set the VL by doing a set with no register payload */
+	memset(&sve, 0, sizeof(sve));
+	sve.size = sizeof(sve);
+	sve.flags = SVE_PT_REGS_SVE;
+	sve.vl = vl;
+	ret = set_sve(child, type, &sve);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set %s VL %u\n",
+				      type->name, vl);
+		return;
+	}
+
+	/*
+	 * Read back the new register state and verify that we have the
+	 * same VL that we got from prctl() on ourselves.
+	 */
+	if (!get_sve(child, type, (void **)&new_sve, &new_sve_size)) {
+		ksft_test_result_fail("Failed to read %s VL %u\n",
+				      type->name, vl);
+		return;
+	}
+
+	ksft_test_result(new_sve->vl == prctl_vl, "Set %s VL %u\n",
+			 type->name, vl);
+
+	free(new_sve);
+}
+
+static void check_u32(unsigned int vl, const char *reg,
+		      uint32_t *in, uint32_t *out, int *errors)
+{
+	if (*in != *out) {
+		printf("# VL %d %s wrote %x read %x\n",
+		       vl, reg, *in, *out);
+		(*errors)++;
+	}
+}
+
+/* Set out of range VLs */
+static void ptrace_set_vl_ranges(pid_t child, const struct vec_type *type)
+{
+	struct user_sve_header sve;
+	int ret;
+
+	memset(&sve, 0, sizeof(sve));
+	sve.flags = SVE_PT_REGS_SVE;
+	sve.size = sizeof(sve);
+
+	ret = set_sve(child, type, &sve);
+	ksft_test_result(ret != 0, "%s Set invalid VL 0\n", type->name);
+
+	sve.vl = SVE_VL_MAX + SVE_VQ_BYTES;
+	ret = set_sve(child, type, &sve);
+	ksft_test_result(ret != 0, "%s Set invalid VL %d\n", type->name,
+			 SVE_VL_MAX + SVE_VQ_BYTES);
+}
+
+/* Access the FPSIMD registers via the SVE regset */
+static void ptrace_sve_fpsimd(pid_t child, const struct vec_type *type)
+{
+	void *svebuf;
+	struct user_sve_header *sve;
+	struct user_fpsimd_state *fpsimd, new_fpsimd;
+	unsigned int i, j;
+	unsigned char *p;
+	int ret;
+
+	svebuf = malloc(SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD));
+	if (!svebuf) {
+		ksft_test_result_fail("Failed to allocate FPSIMD buffer\n");
+		return;
+	}
+
+	memset(svebuf, 0, SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD));
+	sve = svebuf;
+	sve->flags = SVE_PT_REGS_FPSIMD;
+	sve->size = SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD);
+	sve->vl = 16;  /* We don't care what the VL is */
+
+	/* Try to set a known FPSIMD state via PT_REGS_SVE */
+	fpsimd = (struct user_fpsimd_state *)((char *)sve +
+					      SVE_PT_FPSIMD_OFFSET);
+	for (i = 0; i < 32; ++i) {
+		p = (unsigned char *)&fpsimd->vregs[i];
+
+		for (j = 0; j < sizeof(fpsimd->vregs[i]); ++j)
+			p[j] = j;
+	}
+
+	/* This should only succeed for SVE */
+	ret = set_sve(child, type, sve);
+	ksft_test_result((type->regset == NT_ARM_SVE) == (ret == 0),
+			 "%s FPSIMD set via SVE: %d\n",
+			 type->name, ret);
+	if (ret)
+		goto out;
+
+	/* Verify via the FPSIMD regset */
+	if (get_fpsimd(child, &new_fpsimd)) {
+		ksft_test_result_fail("get_fpsimd(): %s\n",
+				      strerror(errno));
+		goto out;
+	}
+	if (memcmp(fpsimd, &new_fpsimd, sizeof(*fpsimd)) == 0)
+		ksft_test_result_pass("%s get_fpsimd() gave same state\n",
+				      type->name);
+	else
+		ksft_test_result_fail("%s get_fpsimd() gave different state\n",
+				      type->name);
+
+out:
+	free(svebuf);
+}
+
+/* Write the FPSIMD registers via the SVE regset when SVE is not supported */
+static void ptrace_sve_fpsimd_no_sve(pid_t child)
+{
+	void *svebuf;
+	struct user_sve_header *sve;
+	struct user_fpsimd_state *fpsimd, new_fpsimd;
+	unsigned int i, j;
+	unsigned char *p;
+	int ret;
+
+	svebuf = malloc(SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD));
+	if (!svebuf) {
+		ksft_test_result_fail("Failed to allocate FPSIMD buffer\n");
+		return;
+	}
+
+	/* On a system without SVE the VL should be set to 0 */
+	memset(svebuf, 0, SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD));
+	sve = svebuf;
+	sve->flags = SVE_PT_REGS_FPSIMD;
+	sve->size = SVE_PT_SIZE(0, SVE_PT_REGS_FPSIMD);
+	sve->vl = 0;
+
+	/* Try to set a known FPSIMD state via PT_REGS_SVE */
+	fpsimd = (struct user_fpsimd_state *)((char *)sve +
+					      SVE_PT_FPSIMD_OFFSET);
+	for (i = 0; i < 32; ++i) {
+		p = (unsigned char *)&fpsimd->vregs[i];
+
+		for (j = 0; j < sizeof(fpsimd->vregs[i]); ++j)
+			p[j] = j;
+	}
+
+	ret = set_sve(child, &vec_types[0], sve);
+	ksft_test_result(ret == 0, "FPSIMD write via SVE\n");
+	if (ret) {
+		ksft_test_result_skip("Verify FPSIMD write via SVE\n");
+		goto out;
+	}
+
+	/* Verify via the FPSIMD regset */
+	if (get_fpsimd(child, &new_fpsimd)) {
+		ksft_test_result_skip("Verify FPSIMD write via SVE\n");
+		goto out;
+	}
+	ksft_test_result(memcmp(fpsimd, &new_fpsimd, sizeof(*fpsimd)) == 0,
+			 "Verify FPSIMD write via SVE\n");
+
+out:
+	free(svebuf);
+}
+
+/* Validate attempting to set SVE data and read SVE data */
+static void ptrace_set_sve_get_sve_data(pid_t child,
+					const struct vec_type *type,
+					unsigned int vl)
+{
+	void *write_buf;
+	void *read_buf = NULL;
+	struct user_sve_header *write_sve;
+	struct user_sve_header *read_sve;
+	size_t read_sve_size = 0;
+	unsigned int vq = sve_vq_from_vl(vl);
+	int ret, i;
+	size_t data_size;
+	int errors = 0;
+
+	data_size = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+	write_buf = malloc(data_size);
+	if (!write_buf) {
+		ksft_test_result_fail("Error allocating %ld byte buffer for %s VL %u\n",
+				      data_size, type->name, vl);
+		return;
+	}
+	write_sve = write_buf;
+
+	/* Set up some data and write it out */
+	memset(write_sve, 0, data_size);
+	write_sve->size = data_size;
+	write_sve->vl = vl;
+	write_sve->flags = SVE_PT_REGS_SVE;
+
+	for (i = 0; i < __SVE_NUM_ZREGS; i++)
+		fill_buf(write_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+			 SVE_PT_SVE_ZREG_SIZE(vq));
+
+	for (i = 0; i < __SVE_NUM_PREGS; i++)
+		fill_buf(write_buf + SVE_PT_SVE_PREG_OFFSET(vq, i),
+			 SVE_PT_SVE_PREG_SIZE(vq));
+
+	fill_buf(write_buf + SVE_PT_SVE_FPSR_OFFSET(vq), SVE_PT_SVE_FPSR_SIZE);
+	fill_buf(write_buf + SVE_PT_SVE_FPCR_OFFSET(vq), SVE_PT_SVE_FPCR_SIZE);
+
+	/* TODO: Generate a valid FFR pattern */
+
+	ret = set_sve(child, type, write_sve);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set %s VL %u data\n",
+				      type->name, vl);
+		goto out;
+	}
+
+	/* Read the data back */
+	if (!get_sve(child, type, (void **)&read_buf, &read_sve_size)) {
+		ksft_test_result_fail("Failed to read %s VL %u data\n",
+				      type->name, vl);
+		goto out;
+	}
+	read_sve = read_buf;
+
+	/* We might read more data if there's extensions we don't know */
+	if (read_sve->size < write_sve->size) {
+		ksft_test_result_fail("%s wrote %d bytes, only read %d\n",
+				      type->name, write_sve->size,
+				      read_sve->size);
+		goto out_read;
+	}
+
+	for (i = 0; i < __SVE_NUM_ZREGS; i++) {
+		if (memcmp(write_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+			   read_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+			   SVE_PT_SVE_ZREG_SIZE(vq)) != 0) {
+			printf("# Mismatch in %u Z%d\n", vl, i);
+			errors++;
+		}
+	}
+
+	for (i = 0; i < __SVE_NUM_PREGS; i++) {
+		if (memcmp(write_buf + SVE_PT_SVE_PREG_OFFSET(vq, i),
+			   read_buf + SVE_PT_SVE_PREG_OFFSET(vq, i),
+			   SVE_PT_SVE_PREG_SIZE(vq)) != 0) {
+			printf("# Mismatch in %u P%d\n", vl, i);
+			errors++;
+		}
+	}
+
+	check_u32(vl, "FPSR", write_buf + SVE_PT_SVE_FPSR_OFFSET(vq),
+		  read_buf + SVE_PT_SVE_FPSR_OFFSET(vq), &errors);
+	check_u32(vl, "FPCR", write_buf + SVE_PT_SVE_FPCR_OFFSET(vq),
+		  read_buf + SVE_PT_SVE_FPCR_OFFSET(vq), &errors);
+
+	ksft_test_result(errors == 0, "Set and get %s data for VL %u\n",
+			 type->name, vl);
+
+out_read:
+	free(read_buf);
+out:
+	free(write_buf);
+}
+
+/* Validate attempting to set SVE data and read it via the FPSIMD regset */
+static void ptrace_set_sve_get_fpsimd_data(pid_t child,
+					   const struct vec_type *type,
+					   unsigned int vl)
+{
+	void *write_buf;
+	struct user_sve_header *write_sve;
+	unsigned int vq = sve_vq_from_vl(vl);
+	struct user_fpsimd_state fpsimd_state;
+	int ret, i;
+	size_t data_size;
+	int errors = 0;
+
+	if (__BYTE_ORDER == __BIG_ENDIAN) {
+		ksft_test_result_skip("Big endian not supported\n");
+		return;
+	}
+
+	data_size = SVE_PT_SVE_OFFSET + SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+	write_buf = malloc(data_size);
+	if (!write_buf) {
+		ksft_test_result_fail("Error allocating %ld byte buffer for %s VL %u\n",
+				      data_size, type->name, vl);
+		return;
+	}
+	write_sve = write_buf;
+
+	/* Set up some data and write it out */
+	memset(write_sve, 0, data_size);
+	write_sve->size = data_size;
+	write_sve->vl = vl;
+	write_sve->flags = SVE_PT_REGS_SVE;
+
+	for (i = 0; i < __SVE_NUM_ZREGS; i++)
+		fill_buf(write_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+			 SVE_PT_SVE_ZREG_SIZE(vq));
+
+	fill_buf(write_buf + SVE_PT_SVE_FPSR_OFFSET(vq), SVE_PT_SVE_FPSR_SIZE);
+	fill_buf(write_buf + SVE_PT_SVE_FPCR_OFFSET(vq), SVE_PT_SVE_FPCR_SIZE);
+
+	ret = set_sve(child, type, write_sve);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set %s VL %u data\n",
+				      type->name, vl);
+		goto out;
+	}
+
+	/* Read the data back */
+	if (get_fpsimd(child, &fpsimd_state)) {
+		ksft_test_result_fail("Failed to read %s VL %u FPSIMD data\n",
+				      type->name, vl);
+		goto out;
+	}
+
+	for (i = 0; i < __SVE_NUM_ZREGS; i++) {
+		__uint128_t tmp = 0;
+
+		/*
+		 * Z regs are stored endianness invariant, this won't
+		 * work for big endian
+		 */
+		memcpy(&tmp, write_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+		       sizeof(tmp));
+
+		if (tmp != fpsimd_state.vregs[i]) {
+			printf("# Mismatch in FPSIMD for %s VL %u Z%d\n",
+			       type->name, vl, i);
+			errors++;
+		}
+	}
+
+	check_u32(vl, "FPSR", write_buf + SVE_PT_SVE_FPSR_OFFSET(vq),
+		  &fpsimd_state.fpsr, &errors);
+	check_u32(vl, "FPCR", write_buf + SVE_PT_SVE_FPCR_OFFSET(vq),
+		  &fpsimd_state.fpcr, &errors);
+
+	ksft_test_result(errors == 0, "Set and get FPSIMD data for %s VL %u\n",
+			 type->name, vl);
+
+out:
+	free(write_buf);
+}
+
+/* Validate attempting to set FPSIMD data and read it via the SVE regset */
+static void ptrace_set_fpsimd_get_sve_data(pid_t child,
+					   const struct vec_type *type,
+					   unsigned int vl)
+{
+	void *read_buf = NULL;
+	unsigned char *p;
+	struct user_sve_header *read_sve;
+	unsigned int vq = sve_vq_from_vl(vl);
+	struct user_fpsimd_state write_fpsimd;
+	int ret, i, j;
+	size_t read_sve_size = 0;
+	size_t expected_size;
+	int errors = 0;
+
+	if (__BYTE_ORDER == __BIG_ENDIAN) {
+		ksft_test_result_skip("Big endian not supported\n");
+		return;
+	}
+
+	for (i = 0; i < 32; ++i) {
+		p = (unsigned char *)&write_fpsimd.vregs[i];
+
+		for (j = 0; j < sizeof(write_fpsimd.vregs[i]); ++j)
+			p[j] = j;
+	}
+
+	ret = set_fpsimd(child, &write_fpsimd);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set FPSIMD state: %d\n)",
+				      ret);
+		return;
+	}
+
+	if (!get_sve(child, type, (void **)&read_buf, &read_sve_size)) {
+		ksft_test_result_fail("Failed to read %s VL %u data\n",
+				      type->name, vl);
+		return;
+	}
+	read_sve = read_buf;
+
+	if (read_sve->vl != vl) {
+		ksft_test_result_fail("Child VL != expected VL: %u != %u\n",
+				      read_sve->vl, vl);
+		goto out;
+	}
+
+	/* The kernel may return either SVE or FPSIMD format */
+	switch (read_sve->flags & SVE_PT_REGS_MASK) {
+	case SVE_PT_REGS_FPSIMD:
+		expected_size = SVE_PT_FPSIMD_SIZE(vq, SVE_PT_REGS_FPSIMD);
+		if (read_sve_size < expected_size) {
+			ksft_test_result_fail("Read %ld bytes, expected %ld\n",
+					      read_sve_size, expected_size);
+			goto out;
+		}
+
+		ret = memcmp(&write_fpsimd, read_buf + SVE_PT_FPSIMD_OFFSET,
+			     sizeof(write_fpsimd));
+		if (ret != 0) {
+			ksft_print_msg("Read FPSIMD data mismatch\n");
+			errors++;
+		}
+		break;
+
+	case SVE_PT_REGS_SVE:
+		expected_size = SVE_PT_SVE_SIZE(vq, SVE_PT_REGS_SVE);
+		if (read_sve_size < expected_size) {
+			ksft_test_result_fail("Read %ld bytes, expected %ld\n",
+					      read_sve_size, expected_size);
+			goto out;
+		}
+
+		for (i = 0; i < __SVE_NUM_ZREGS; i++) {
+			__uint128_t tmp = 0;
+
+			/*
+			 * Z regs are stored endianness invariant, this won't
+			 * work for big endian
+			 */
+			memcpy(&tmp, read_buf + SVE_PT_SVE_ZREG_OFFSET(vq, i),
+			       sizeof(tmp));
+
+			if (tmp != write_fpsimd.vregs[i]) {
+				ksft_print_msg("Mismatch in FPSIMD for %s VL %u Z%d/V%d\n",
+					       type->name, vl, i, i);
+				errors++;
+			}
+		}
+
+		check_u32(vl, "FPSR", &write_fpsimd.fpsr,
+			  read_buf + SVE_PT_SVE_FPSR_OFFSET(vq), &errors);
+		check_u32(vl, "FPCR", &write_fpsimd.fpcr,
+			  read_buf + SVE_PT_SVE_FPCR_OFFSET(vq), &errors);
+		break;
+	default:
+		ksft_print_msg("Unexpected regs type %d\n",
+			       read_sve->flags & SVE_PT_REGS_MASK);
+		errors++;
+		break;
+	}
+
+	ksft_test_result(errors == 0, "Set FPSIMD, read via SVE for %s VL %u\n",
+			 type->name, vl);
+
+out:
+	free(read_buf);
+}
+
+static int do_parent(pid_t child)
+{
+	int ret = EXIT_FAILURE;
+	pid_t pid;
+	int status, i;
+	siginfo_t si;
+	unsigned int vq, vl;
+	bool vl_supported;
+
+	ksft_print_msg("Parent is %d, child is %d\n", getpid(), child);
+
+	/* Attach to the child */
+	while (1) {
+		int sig;
+
+		pid = wait(&status);
+		if (pid == -1) {
+			perror("wait");
+			goto error;
+		}
+
+		/*
+		 * This should never happen but it's hard to flag in
+		 * the framework.
+		 */
+		if (pid != child)
+			continue;
+
+		if (WIFEXITED(status) || WIFSIGNALED(status))
+			ksft_exit_fail_msg("Child died unexpectedly\n");
+
+		if (!WIFSTOPPED(status))
+			goto error;
+
+		sig = WSTOPSIG(status);
+
+		if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &si)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			if (errno == EINVAL) {
+				sig = 0; /* bust group-stop */
+				goto cont;
+			}
+
+			ksft_test_result_fail("PTRACE_GETSIGINFO: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+
+		if (sig == SIGSTOP && si.si_code == SI_TKILL &&
+		    si.si_pid == pid)
+			break;
+
+	cont:
+		if (ptrace(PTRACE_CONT, pid, NULL, sig)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			ksft_test_result_fail("PTRACE_CONT: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(vec_types); i++) {
+		/*
+		 * If the vector type isn't supported reads and writes
+		 * should fail.
+		 */
+		if (!(getauxval(vec_types[i].hwcap_type) & vec_types[i].hwcap)) {
+			read_fails(child, &vec_types[i]);
+			write_fails(child, &vec_types[i]);
+		} else {
+			ksft_test_result_skip("%s unsupported read fails\n",
+					      vec_types[i].name);
+			ksft_test_result_skip("%s unsupported write fails\n",
+					      vec_types[i].name);
+		}
+
+		/* FPSIMD via SVE regset */
+		if (getauxval(vec_types[i].hwcap_type) & vec_types[i].hwcap) {
+			ptrace_sve_fpsimd(child, &vec_types[i]);
+		} else {
+			ksft_test_result_skip("%s FPSIMD set via SVE\n",
+					      vec_types[i].name);
+			ksft_test_result_skip("%s FPSIMD read\n",
+					      vec_types[i].name);
+		}
+
+		/* prctl() flags */
+		if (getauxval(vec_types[i].hwcap_type) & vec_types[i].hwcap) {
+			ptrace_set_get_inherit(child, &vec_types[i]);
+		} else {
+			ksft_test_result_skip("%s SVE_PT_VL_INHERIT set\n",
+					      vec_types[i].name);
+			ksft_test_result_skip("%s SVE_PT_VL_INHERIT cleared\n",
+					      vec_types[i].name);
+		}
+
+		/* Setting out of bounds VLs should fail */
+		if (getauxval(vec_types[i].hwcap_type) & vec_types[i].hwcap) {
+			ptrace_set_vl_ranges(child, &vec_types[i]);
+		} else {
+			ksft_test_result_skip("%s Set invalid VL 0\n",
+					      vec_types[i].name);
+			ksft_test_result_skip("%s Set invalid VL %d\n",
+					      vec_types[i].name,
+					      SVE_VL_MAX + SVE_VQ_BYTES);
+		}
+
+		/* Step through every possible VQ */
+		for (vq = SVE_VQ_MIN; vq <= TEST_VQ_MAX; vq++) {
+			vl = sve_vl_from_vq(vq);
+
+			/* First, try to set this vector length */
+			if (getauxval(vec_types[i].hwcap_type) &
+			    vec_types[i].hwcap) {
+				ptrace_set_get_vl(child, &vec_types[i], vl,
+						  &vl_supported);
+			} else {
+				ksft_test_result_skip("%s get/set VL %d\n",
+						      vec_types[i].name, vl);
+				vl_supported = false;
+			}
+
+			/* If the VL is supported validate data set/get */
+			if (vl_supported) {
+				ptrace_set_sve_get_sve_data(child, &vec_types[i], vl);
+				ptrace_set_sve_get_fpsimd_data(child, &vec_types[i], vl);
+				ptrace_set_fpsimd_get_sve_data(child, &vec_types[i], vl);
+			} else {
+				ksft_test_result_skip("%s set SVE get SVE for VL %d\n",
+						      vec_types[i].name, vl);
+				ksft_test_result_skip("%s set SVE get FPSIMD for VL %d\n",
+						      vec_types[i].name, vl);
+				ksft_test_result_skip("%s set FPSIMD get SVE for VL %d\n",
+						      vec_types[i].name, vl);
+			}
+		}
+	}
+
+	/* We support SVE writes of FPSMID format on SME only systems */
+	if (!(getauxval(AT_HWCAP) & HWCAP_SVE) &&
+	    (getauxval(AT_HWCAP2) & HWCAP2_SME)) {
+		ptrace_sve_fpsimd_no_sve(child);
+	} else {
+		ksft_test_result_skip("FPSIMD write via SVE\n");
+		ksft_test_result_skip("Verify FPSIMD write via SVE\n");
+	}
+
+	ret = EXIT_SUCCESS;
+
+error:
+	kill(child, SIGKILL);
+
+disappeared:
+	return ret;
+}
+
+int main(void)
+{
+	int ret = EXIT_SUCCESS;
+	pid_t child;
+
+	srandom(getpid());
+
+	ksft_print_header();
+	ksft_set_plan(EXPECTED_TESTS);
+
+	child = fork();
+	if (!child)
+		return do_child();
+
+	if (do_parent(child))
+		ret = EXIT_FAILURE;
+
+	ksft_print_cnts();
+
+	return ret;
+}
diff --git a/tools/testing/selftests/arm64/fp/sve-stress b/tools/testing/selftests/arm64/fp/sve-stress
new file mode 100755
index 000000000000..24dd0922cc02
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/sve-stress
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2015-2019 ARM Limited.
+# Original author: Dave Martin <Dave.Martin@arm.com>
+
+set -ue
+
+NR_CPUS=`nproc`
+
+pids=
+logs=
+
+cleanup () {
+	trap - INT TERM CHLD
+	set +e
+
+	if [ -n "$pids" ]; then
+		kill $pids
+		wait $pids
+		pids=
+	fi
+
+	if [ -n "$logs" ]; then
+		cat $logs
+		rm $logs
+		logs=
+	fi
+}
+
+interrupt () {
+	cleanup
+	exit 0
+}
+
+child_died () {
+	cleanup
+	exit 1
+}
+
+trap interrupt INT TERM EXIT
+
+for x in `seq 0 $((NR_CPUS * 4))`; do
+	log=`mktemp`
+	logs=$logs\ $log
+	./sve-test >$log &
+	pids=$pids\ $!
+done
+
+# Wait for all child processes to be created:
+sleep 10
+
+while :; do
+	kill -USR1 $pids
+done &
+pids=$pids\ $!
+
+wait
+
+exit 1
diff --git a/tools/testing/selftests/arm64/fp/sve-test.S b/tools/testing/selftests/arm64/fp/sve-test.S
new file mode 100644
index 000000000000..80e072f221cd
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/sve-test.S
@@ -0,0 +1,584 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2015-2019 ARM Limited.
+// Original author: Dave Martin <Dave.Martin@arm.com>
+//
+// Simple Scalable Vector Extension context switch test
+// Repeatedly writes unique test patterns into each SVE register
+// and reads them back to verify integrity.
+//
+// for x in `seq 1 NR_CPUS`; do sve-test & pids=$pids\ $! ; done
+// (leave it running for as long as you want...)
+// kill $pids
+
+#include <asm/unistd.h>
+#include "assembler.h"
+#include "asm-offsets.h"
+#include "sme-inst.h"
+
+#define NZR	32
+#define NPR	16
+#define MAXVL_B	(2048 / 8)
+
+.arch_extension sve
+
+.macro _sve_ldr_v zt, xn
+	ldr	z\zt, [x\xn]
+.endm
+
+.macro _sve_str_v zt, xn
+	str	z\zt, [x\xn]
+.endm
+
+.macro _sve_ldr_p pt, xn
+	ldr	p\pt, [x\xn]
+.endm
+
+.macro _sve_str_p pt, xn
+	str	p\pt, [x\xn]
+.endm
+
+// Generate accessor functions to read/write programmatically selected
+// SVE registers.
+// x0 is the register index to access
+// x1 is the memory address to read from (getz,setp) or store to (setz,setp)
+// All clobber x0-x2
+define_accessor setz, NZR, _sve_ldr_v
+define_accessor getz, NZR, _sve_str_v
+define_accessor setp, NPR, _sve_ldr_p
+define_accessor getp, NPR, _sve_str_p
+
+// Declare some storate space to shadow the SVE register contents:
+.pushsection .text
+.data
+.align 4
+zref:
+	.space	MAXVL_B * NZR
+pref:
+	.space	MAXVL_B / 8 * NPR
+ffrref:
+	.space	MAXVL_B / 8
+scratch:
+	.space	MAXVL_B
+.popsection
+
+// Generate a test pattern for storage in SVE registers
+// x0: pid	(16 bits)
+// x1: register number (6 bits)
+// x2: generation (4 bits)
+
+// These values are used to constuct a 32-bit pattern that is repeated in the
+// scratch buffer as many times as will fit:
+// bits 31:28	generation number (increments once per test_loop)
+// bits 27:22	32-bit lane index
+// bits 21:16	register number
+// bits 15: 0	pid
+
+function pattern
+	orr	w1, w0, w1, lsl #16
+	orr	w2, w1, w2, lsl #28
+
+	ldr	x0, =scratch
+	mov	w1, #MAXVL_B / 4
+
+0:	str	w2, [x0], #4
+	add	w2, w2, #(1 << 22)
+	subs	w1, w1, #1
+	bne	0b
+
+	ret
+endfunction
+
+// Get the address of shadow data for SVE Z-register Z<xn>
+.macro _adrz xd, xn, nrtmp
+	ldr	\xd, =zref
+	rdvl	x\nrtmp, #1
+	madd	\xd, x\nrtmp, \xn, \xd
+.endm
+
+// Get the address of shadow data for SVE P-register P<xn - NZR>
+.macro _adrp xd, xn, nrtmp
+	ldr	\xd, =pref
+	rdvl	x\nrtmp, #1
+	lsr	x\nrtmp, x\nrtmp, #3
+	sub	\xn, \xn, #NZR
+	madd	\xd, x\nrtmp, \xn, \xd
+.endm
+
+// Set up test pattern in a SVE Z-register
+// x0: pid
+// x1: register number
+// x2: generation
+function setup_zreg
+	mov	x4, x30
+
+	mov	x6, x1
+	bl	pattern
+	_adrz	x0, x6, 2
+	mov	x5, x0
+	ldr	x1, =scratch
+	bl	memcpy
+
+	mov	x0, x6
+	mov	x1, x5
+	bl	setz
+
+	ret	x4
+endfunction
+
+// Set up test pattern in a SVE P-register
+// x0: pid
+// x1: register number
+// x2: generation
+function setup_preg
+	mov	x4, x30
+
+	mov	x6, x1
+	bl	pattern
+	_adrp	x0, x6, 2
+	mov	x5, x0
+	ldr	x1, =scratch
+	bl	memcpy
+
+	mov	x0, x6
+	mov	x1, x5
+	bl	setp
+
+	ret	x4
+endfunction
+
+// Set up test pattern in the FFR
+// x0: pid
+// x2: generation
+//
+// We need to generate a canonical FFR value, which consists of a number of
+// low "1" bits, followed by a number of zeros. This gives us 17 unique values
+// per 16 bits of FFR, so we create a 4 bit signature out of the PID and
+// generation, and use that as the initial number of ones in the pattern.
+// We fill the upper lanes of FFR with zeros.
+// Beware: corrupts P0.
+function setup_ffr
+#ifndef SSVE
+	mov	x4, x30
+
+	and	w0, w0, #0x3
+	bfi	w0, w2, #2, #2
+	mov	w1, #1
+	lsl	w1, w1, w0
+	sub	w1, w1, #1
+
+	ldr	x0, =ffrref
+	strh	w1, [x0], 2
+	rdvl	x1, #1
+	lsr	x1, x1, #3
+	sub	x1, x1, #2
+	bl	memclr
+
+	mov	x0, #0
+	ldr	x1, =ffrref
+	bl	setp
+
+	wrffr	p0.b
+
+	ret	x4
+#else
+	ret
+#endif
+endfunction
+
+// Trivial memory compare: compare x2 bytes starting at address x0 with
+// bytes starting at address x1.
+// Returns only if all bytes match; otherwise, the program is aborted.
+// Clobbers x0-x5.
+function memcmp
+	cbz	x2, 2f
+
+	stp	x0, x1, [sp, #-0x20]!
+	str	x2, [sp, #0x10]
+
+	mov	x5, #0
+0:	ldrb	w3, [x0, x5]
+	ldrb	w4, [x1, x5]
+	add	x5, x5, #1
+	cmp	w3, w4
+	b.ne	1f
+	subs	x2, x2, #1
+	b.ne	0b
+
+1:	ldr	x2, [sp, #0x10]
+	ldp	x0, x1, [sp], #0x20
+	b.ne	barf
+
+2:	ret
+endfunction
+
+// Verify that a SVE Z-register matches its shadow in memory, else abort
+// x0: reg number
+// Clobbers x0-x7.
+function check_zreg
+	mov	x3, x30
+
+	_adrz	x5, x0, 6
+	mov	x4, x0
+	ldr	x7, =scratch
+
+	mov	x0, x7
+	mov	x1, x6
+	bl	memfill_ae
+
+	mov	x0, x4
+	mov	x1, x7
+	bl	getz
+
+	mov	x0, x5
+	mov	x1, x7
+	mov	x2, x6
+	mov	x30, x3
+	b	memcmp
+endfunction
+
+// Verify that a SVE P-register matches its shadow in memory, else abort
+// x0: reg number
+// Clobbers x0-x7.
+function check_preg
+	mov	x3, x30
+
+	_adrp	x5, x0, 6
+	mov	x4, x0
+	ldr	x7, =scratch
+
+	mov	x0, x7
+	mov	x1, x6
+	bl	memfill_ae
+
+	mov	x0, x4
+	mov	x1, x7
+	bl	getp
+
+	mov	x0, x5
+	mov	x1, x7
+	mov	x2, x6
+	mov	x30, x3
+	b	memcmp
+endfunction
+
+// Verify that the FFR matches its shadow in memory, else abort
+// Beware -- corrupts P0.
+// Clobbers x0-x5.
+function check_ffr
+#ifndef SSVE
+	mov	x3, x30
+
+	ldr	x4, =scratch
+	rdvl	x5, #1
+	lsr	x5, x5, #3
+
+	mov	x0, x4
+	mov	x1, x5
+	bl	memfill_ae
+
+	rdffr	p0.b
+	mov	x0, #0
+	mov	x1, x4
+	bl	getp
+
+	ldr	x0, =ffrref
+	mov	x1, x4
+	mov	x2, x5
+	mov	x30, x3
+	b	memcmp
+#else
+	ret
+#endif
+endfunction
+
+// Modify live register state, the signal return will undo our changes
+function irritator_handler
+	// Increment the irritation signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	// Corrupt some random Z-regs
+	movi	v0.8b, #1
+	movi	v9.16b, #2
+	movi	v31.8b, #3
+	// And P0
+	ptrue	p0.d
+#ifndef SSVE
+	// And FFR
+	wrffr	p15.b
+#endif
+
+	ret
+endfunction
+
+function tickle_handler
+	// Increment the signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	ret
+endfunction
+
+function terminate_handler
+	mov	w21, w0
+	mov	x20, x2
+
+	puts	"Terminated by signal "
+	mov	w0, w21
+	bl	putdec
+	puts	", no error, iterations="
+	ldr	x0, [x20, #ucontext_regs + 8 * 22]
+	bl	putdec
+	puts	", signals="
+	ldr	x0, [x20, #ucontext_regs + 8 * 23]
+	bl	putdecn
+
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
+endfunction
+
+// w0: signal number
+// x1: sa_action
+// w2: sa_flags
+// Clobbers x0-x6,x8
+function setsignal
+	str	x30, [sp, #-((sa_sz + 15) / 16 * 16 + 16)]!
+
+	mov	w4, w0
+	mov	x5, x1
+	mov	w6, w2
+
+	add	x0, sp, #16
+	mov	x1, #sa_sz
+	bl	memclr
+
+	mov	w0, w4
+	add	x1, sp, #16
+	str	w6, [x1, #sa_flags]
+	str	x5, [x1, #sa_handler]
+	mov	x2, #0
+	mov	x3, #sa_mask_sz
+	mov	x8, #__NR_rt_sigaction
+	svc	#0
+
+	cbz	w0, 1f
+
+	puts	"sigaction failure\n"
+	b	.Labort
+
+1:	ldr	x30, [sp], #((sa_sz + 15) / 16 * 16 + 16)
+	ret
+endfunction
+
+// Main program entry point
+.globl _start
+function _start
+	enable_gcs
+
+	mov	x23, #0		// Irritation signal count
+
+	mov	w0, #SIGINT
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGTERM
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGUSR1
+	adr	x1, irritator_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	mov	w0, #SIGUSR2
+	adr	x1, tickle_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+#ifdef SSVE
+	puts	"Streaming mode "
+	smstart_sm
+#endif
+
+	// Sanity-check and report the vector length
+
+	rdvl	x19, #8
+	cmp	x19, #128
+	b.lo	1f
+	cmp	x19, #2048
+	b.hi	1f
+	tst	x19, #(8 - 1)
+	b.eq	2f
+
+1:	puts	"Bad vector length: "
+	mov	x0, x19
+	bl	putdecn
+	b	.Labort
+
+2:	puts	"Vector length:\t"
+	mov	x0, x19
+	bl	putdec
+	puts	" bits\n"
+
+	// Obtain our PID, to ensure test pattern uniqueness between processes
+
+	mov	x8, #__NR_getpid
+	svc	#0
+	mov	x20, x0
+
+	puts	"PID:\t"
+	mov	x0, x20
+	bl	putdecn
+
+#ifdef SSVE
+	smstart_sm		// syscalls will have exited streaming mode
+#endif
+
+	mov	x22, #0		// generation number, increments per iteration
+.Ltest_loop:
+	rdvl	x0, #8
+	cmp	x0, x19
+	b.ne	vl_barf
+
+	mov	x21, #0		// Set up Z-regs & shadow with test pattern
+0:	mov	x0, x20
+	mov	x1, x21
+	and	x2, x22, #0xf
+	bl	setup_zreg
+	add	x21, x21, #1
+	cmp	x21, #NZR
+	b.lo	0b
+
+	mov	x0, x20		// Set up FFR & shadow with test pattern
+	mov	x1, #NZR + NPR
+	and	x2, x22, #0xf
+	bl	setup_ffr
+
+0:	mov	x0, x20		// Set up P-regs & shadow with test pattern
+	mov	x1, x21
+	and	x2, x22, #0xf
+	bl	setup_preg
+	add	x21, x21, #1
+	cmp	x21, #NZR + NPR
+	b.lo	0b
+
+// Can't do this when SVE state is volatile across SVC:
+//	mov	x8, #__NR_sched_yield	// Encourage preemption
+//	svc	#0
+
+#ifdef SSVE
+	mrs	x0, S3_3_C4_C2_2	// SVCR should have ZA=0,SM=1
+	and	x1, x0, #3
+	cmp	x1, #1
+	b.ne	svcr_barf
+#endif
+
+	mov	x21, #0
+0:	mov	x0, x21
+	bl	check_zreg
+	add	x21, x21, #1
+	cmp	x21, #NZR
+	b.lo	0b
+
+0:	mov	x0, x21
+	bl	check_preg
+	add	x21, x21, #1
+	cmp	x21, #NZR + NPR
+	b.lo	0b
+
+	bl	check_ffr
+
+	add	x22, x22, #1
+	b	.Ltest_loop
+
+.Labort:
+	mov	x0, #0
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+endfunction
+
+function barf
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// end hack
+	mov	x10, x0	// expected data
+	mov	x11, x1	// actual data
+	mov	x12, x2	// data size
+
+#ifdef SSVE
+	mrs	x13, S3_3_C4_C2_2
+#endif
+
+	puts	"Mismatch: PID="
+	mov	x0, x20
+	bl	putdec
+	puts	", iteration="
+	mov	x0, x22
+	bl	putdec
+	puts	", reg="
+	mov	x0, x21
+	bl	putdecn
+	puts	"\tExpected ["
+	mov	x0, x10
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n\tGot      ["
+	mov	x0, x11
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n"
+
+#ifdef SSVE
+	puts	"\tSVCR: "
+	mov	x0, x13
+	bl	putdecn
+#endif
+
+	mov	x8, #__NR_getpid
+	svc	#0
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// ^ end of hack
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+//	mov	x8, #__NR_exit
+//	mov	x1, #1
+//	svc	#0
+endfunction
+
+function vl_barf
+	mov	x10, x0
+
+	puts	"Bad active VL: "
+	mov	x0, x10
+	bl	putdecn
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
+
+function svcr_barf
+	mov	x10, x0
+
+	puts	"Bad SVCR: "
+	mov	x0, x10
+	bl	putdecn
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
diff --git a/tools/testing/selftests/arm64/fp/vec-syscfg.c b/tools/testing/selftests/arm64/fp/vec-syscfg.c
new file mode 100644
index 000000000000..8dd932fdcdc4
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/vec-syscfg.c
@@ -0,0 +1,796 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 ARM Limited.
+ * Original author: Mark Brown <broonie@kernel.org>
+ */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <asm/sigcontext.h>
+#include <asm/hwcap.h>
+
+#include "kselftest.h"
+#include "rdvl.h"
+
+#define ARCH_MIN_VL SVE_VL_MIN
+
+struct vec_data {
+	const char *name;
+	unsigned long hwcap_type;
+	unsigned long hwcap;
+	const char *rdvl_binary;
+	int (*rdvl)(void);
+
+	int prctl_get;
+	int prctl_set;
+	const char *default_vl_file;
+
+	int default_vl;
+	int min_vl;
+	int max_vl;
+};
+
+#define VEC_SVE 0
+#define VEC_SME 1
+
+static struct vec_data vec_data[] = {
+	[VEC_SVE] = {
+		.name = "SVE",
+		.hwcap_type = AT_HWCAP,
+		.hwcap = HWCAP_SVE,
+		.rdvl = rdvl_sve,
+		.rdvl_binary = "./rdvl-sve",
+		.prctl_get = PR_SVE_GET_VL,
+		.prctl_set = PR_SVE_SET_VL,
+		.default_vl_file = "/proc/sys/abi/sve_default_vector_length",
+	},
+	[VEC_SME] = {
+		.name = "SME",
+		.hwcap_type = AT_HWCAP2,
+		.hwcap = HWCAP2_SME,
+		.rdvl = rdvl_sme,
+		.rdvl_binary = "./rdvl-sme",
+		.prctl_get = PR_SME_GET_VL,
+		.prctl_set = PR_SME_SET_VL,
+		.default_vl_file = "/proc/sys/abi/sme_default_vector_length",
+	},
+};
+
+static bool vec_type_supported(struct vec_data *data)
+{
+	return getauxval(data->hwcap_type) & data->hwcap;
+}
+
+static int stdio_read_integer(FILE *f, const char *what, int *val)
+{
+	int n = 0;
+	int ret;
+
+	ret = fscanf(f, "%d%*1[\n]%n", val, &n);
+	if (ret < 1 || n < 1) {
+		ksft_print_msg("failed to parse integer from %s\n", what);
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Start a new process and return the vector length it sees */
+static int get_child_rdvl(struct vec_data *data)
+{
+	FILE *out;
+	int pipefd[2];
+	pid_t pid, child;
+	int read_vl, ret;
+
+	ret = pipe(pipefd);
+	if (ret == -1) {
+		ksft_print_msg("pipe() failed: %d (%s)\n",
+			       errno, strerror(errno));
+		return -1;
+	}
+
+	fflush(stdout);
+
+	child = fork();
+	if (child == -1) {
+		ksft_print_msg("fork() failed: %d (%s)\n",
+			       errno, strerror(errno));
+		close(pipefd[0]);
+		close(pipefd[1]);
+		return -1;
+	}
+
+	/* Child: put vector length on the pipe */
+	if (child == 0) {
+		/*
+		 * Replace stdout with the pipe, errors to stderr from
+		 * here as kselftest prints to stdout.
+		 */
+		ret = dup2(pipefd[1], 1);
+		if (ret == -1) {
+			fprintf(stderr, "dup2() %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+
+		/* exec() a new binary which puts the VL on stdout */
+		ret = execl(data->rdvl_binary, data->rdvl_binary, NULL);
+		fprintf(stderr, "execl(%s) failed: %d (%s)\n",
+			data->rdvl_binary, errno, strerror(errno));
+
+		exit(EXIT_FAILURE);
+	}
+
+	close(pipefd[1]);
+
+	/* Parent; wait for the exit status from the child & verify it */
+	do {
+		pid = wait(&ret);
+		if (pid == -1) {
+			ksft_print_msg("wait() failed: %d (%s)\n",
+				       errno, strerror(errno));
+			close(pipefd[0]);
+			return -1;
+		}
+	} while (pid != child);
+
+	assert(pid == child);
+
+	if (!WIFEXITED(ret)) {
+		ksft_print_msg("child exited abnormally\n");
+		close(pipefd[0]);
+		return -1;
+	}
+
+	if (WEXITSTATUS(ret) != 0) {
+		ksft_print_msg("child returned error %d\n",
+			       WEXITSTATUS(ret));
+		close(pipefd[0]);
+		return -1;
+	}
+
+	out = fdopen(pipefd[0], "r");
+	if (!out) {
+		ksft_print_msg("failed to open child stdout\n");
+		close(pipefd[0]);
+		return -1;
+	}
+
+	ret = stdio_read_integer(out, "child", &read_vl);
+	fclose(out);
+	if (ret != 0)
+		return ret;
+
+	return read_vl;
+}
+
+static int file_read_integer(const char *name, int *val)
+{
+	FILE *f;
+	int ret;
+
+	f = fopen(name, "r");
+	if (!f) {
+		ksft_test_result_fail("Unable to open %s: %d (%s)\n",
+				      name, errno,
+				      strerror(errno));
+		return -1;
+	}
+
+	ret = stdio_read_integer(f, name, val);
+	fclose(f);
+
+	return ret;
+}
+
+static int file_write_integer(const char *name, int val)
+{
+	FILE *f;
+
+	f = fopen(name, "w");
+	if (!f) {
+		ksft_test_result_fail("Unable to open %s: %d (%s)\n",
+				      name, errno,
+				      strerror(errno));
+		return -1;
+	}
+
+	fprintf(f, "%d", val);
+	fclose(f);
+
+	return 0;
+}
+
+/*
+ * Verify that we can read the default VL via proc, checking that it
+ * is set in a freshly spawned child.
+ */
+static void proc_read_default(struct vec_data *data)
+{
+	int default_vl, child_vl, ret;
+
+	ret = file_read_integer(data->default_vl_file, &default_vl);
+	if (ret != 0)
+		return;
+
+	/* Is this the actual default seen by new processes? */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != default_vl) {
+		ksft_test_result_fail("%s is %d but child VL is %d\n",
+				      data->default_vl_file,
+				      default_vl, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s default vector length %d\n", data->name,
+			      default_vl);
+	data->default_vl = default_vl;
+}
+
+/* Verify that we can write a minimum value and have it take effect */
+static void proc_write_min(struct vec_data *data)
+{
+	int ret, new_default, child_vl;
+
+	if (geteuid() != 0) {
+		ksft_test_result_skip("Need to be root to write to /proc\n");
+		return;
+	}
+
+	ret = file_write_integer(data->default_vl_file, ARCH_MIN_VL);
+	if (ret != 0)
+		return;
+
+	/* What was the new value? */
+	ret = file_read_integer(data->default_vl_file, &new_default);
+	if (ret != 0)
+		return;
+
+	/* Did it take effect in a new process? */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != new_default) {
+		ksft_test_result_fail("%s is %d but child VL is %d\n",
+				      data->default_vl_file,
+				      new_default, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s minimum vector length %d\n", data->name,
+			      new_default);
+	data->min_vl = new_default;
+
+	file_write_integer(data->default_vl_file, data->default_vl);
+}
+
+/* Verify that we can write a maximum value and have it take effect */
+static void proc_write_max(struct vec_data *data)
+{
+	int ret, new_default, child_vl;
+
+	if (geteuid() != 0) {
+		ksft_test_result_skip("Need to be root to write to /proc\n");
+		return;
+	}
+
+	/* -1 is accepted by the /proc interface as the maximum VL */
+	ret = file_write_integer(data->default_vl_file, -1);
+	if (ret != 0)
+		return;
+
+	/* What was the new value? */
+	ret = file_read_integer(data->default_vl_file, &new_default);
+	if (ret != 0)
+		return;
+
+	/* Did it take effect in a new process? */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != new_default) {
+		ksft_test_result_fail("%s is %d but child VL is %d\n",
+				      data->default_vl_file,
+				      new_default, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s maximum vector length %d\n", data->name,
+			      new_default);
+	data->max_vl = new_default;
+
+	file_write_integer(data->default_vl_file, data->default_vl);
+}
+
+/* Can we read back a VL from prctl? */
+static void prctl_get(struct vec_data *data)
+{
+	int ret;
+
+	ret = prctl(data->prctl_get);
+	if (ret == -1) {
+		ksft_test_result_fail("%s prctl() read failed: %d (%s)\n",
+				      data->name, errno, strerror(errno));
+		return;
+	}
+
+	/* Mask out any flags */
+	ret &= PR_SVE_VL_LEN_MASK;
+
+	/* Is that what we can read back directly? */
+	if (ret == data->rdvl())
+		ksft_test_result_pass("%s current VL is %d\n",
+				      data->name, ret);
+	else
+		ksft_test_result_fail("%s prctl() VL %d but RDVL is %d\n",
+				      data->name, ret, data->rdvl());
+}
+
+/* Does the prctl let us set the VL we already have? */
+static void prctl_set_same(struct vec_data *data)
+{
+	int cur_vl = data->rdvl();
+	int ret;
+
+	ret = prctl(data->prctl_set, cur_vl);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed: %d (%s)\n",
+				      data->name, errno, strerror(errno));
+		return;
+	}
+
+	ksft_test_result(cur_vl == data->rdvl(),
+			 "%s set VL %d and have VL %d\n",
+			 data->name, cur_vl, data->rdvl());
+}
+
+/* Can we set a new VL for this process? */
+static void prctl_set(struct vec_data *data)
+{
+	int ret;
+
+	if (data->min_vl == data->max_vl) {
+		ksft_test_result_skip("%s only one VL supported\n",
+				      data->name);
+		return;
+	}
+
+	/* Try to set the minimum VL */
+	ret = prctl(data->prctl_set, data->min_vl);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->min_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	if ((ret & PR_SVE_VL_LEN_MASK) != data->min_vl) {
+		ksft_test_result_fail("%s prctl set %d but return value is %d\n",
+				      data->name, data->min_vl, data->rdvl());
+		return;
+	}
+
+	if (data->rdvl() != data->min_vl) {
+		ksft_test_result_fail("%s set %d but RDVL is %d\n",
+				      data->name, data->min_vl, data->rdvl());
+		return;
+	}
+
+	/* Try to set the maximum VL */
+	ret = prctl(data->prctl_set, data->max_vl);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->max_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	if ((ret & PR_SVE_VL_LEN_MASK) != data->max_vl) {
+		ksft_test_result_fail("%s prctl() set %d but return value is %d\n",
+				      data->name, data->max_vl, data->rdvl());
+		return;
+	}
+
+	/* The _INHERIT flag should not be present when we read the VL */
+	ret = prctl(data->prctl_get);
+	if (ret == -1) {
+		ksft_test_result_fail("%s prctl() read failed: %d (%s)\n",
+				      data->name, errno, strerror(errno));
+		return;
+	}
+
+	if (ret & PR_SVE_VL_INHERIT) {
+		ksft_test_result_fail("%s prctl() reports _INHERIT\n",
+				      data->name);
+		return;
+	}
+
+	ksft_test_result_pass("%s prctl() set min/max\n", data->name);
+}
+
+/* If we didn't request it a new VL shouldn't affect the child */
+static void prctl_set_no_child(struct vec_data *data)
+{
+	int ret, child_vl;
+
+	if (data->min_vl == data->max_vl) {
+		ksft_test_result_skip("%s only one VL supported\n",
+				      data->name);
+		return;
+	}
+
+	ret = prctl(data->prctl_set, data->min_vl);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->min_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	/* Ensure the default VL is different */
+	ret = file_write_integer(data->default_vl_file, data->max_vl);
+	if (ret != 0)
+		return;
+
+	/* Check that the child has the default we just set */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != data->max_vl) {
+		ksft_test_result_fail("%s is %d but child VL is %d\n",
+				      data->default_vl_file,
+				      data->max_vl, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s vector length used default\n", data->name);
+
+	file_write_integer(data->default_vl_file, data->default_vl);
+}
+
+/* If we didn't request it a new VL shouldn't affect the child */
+static void prctl_set_for_child(struct vec_data *data)
+{
+	int ret, child_vl;
+
+	if (data->min_vl == data->max_vl) {
+		ksft_test_result_skip("%s only one VL supported\n",
+				      data->name);
+		return;
+	}
+
+	ret = prctl(data->prctl_set, data->min_vl | PR_SVE_VL_INHERIT);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->min_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	/* The _INHERIT flag should be present when we read the VL */
+	ret = prctl(data->prctl_get);
+	if (ret == -1) {
+		ksft_test_result_fail("%s prctl() read failed: %d (%s)\n",
+				      data->name, errno, strerror(errno));
+		return;
+	}
+	if (!(ret & PR_SVE_VL_INHERIT)) {
+		ksft_test_result_fail("%s prctl() does not report _INHERIT\n",
+				      data->name);
+		return;
+	}
+
+	/* Ensure the default VL is different */
+	ret = file_write_integer(data->default_vl_file, data->max_vl);
+	if (ret != 0)
+		return;
+
+	/* Check that the child inherited our VL */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != data->min_vl) {
+		ksft_test_result_fail("%s is %d but child VL is %d\n",
+				      data->default_vl_file,
+				      data->min_vl, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s vector length was inherited\n", data->name);
+
+	file_write_integer(data->default_vl_file, data->default_vl);
+}
+
+/* _ONEXEC takes effect only in the child process */
+static void prctl_set_onexec(struct vec_data *data)
+{
+	int ret, child_vl;
+
+	if (data->min_vl == data->max_vl) {
+		ksft_test_result_skip("%s only one VL supported\n",
+				      data->name);
+		return;
+	}
+
+	/* Set a known value for the default and our current VL */
+	ret = file_write_integer(data->default_vl_file, data->max_vl);
+	if (ret != 0)
+		return;
+
+	ret = prctl(data->prctl_set, data->max_vl);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->min_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	/* Set a different value for the child to have on exec */
+	ret = prctl(data->prctl_set, data->min_vl | PR_SVE_SET_VL_ONEXEC);
+	if (ret < 0) {
+		ksft_test_result_fail("%s prctl set failed for %d: %d (%s)\n",
+				      data->name, data->min_vl,
+				      errno, strerror(errno));
+		return;
+	}
+
+	/* Our current VL should stay the same */
+	if (data->rdvl() != data->max_vl) {
+		ksft_test_result_fail("%s VL changed by _ONEXEC prctl()\n",
+				      data->name);
+		return;
+	}
+
+	/* Check that the child inherited our VL */
+	child_vl = get_child_rdvl(data);
+	if (child_vl != data->min_vl) {
+		ksft_test_result_fail("Set %d _ONEXEC but child VL is %d\n",
+				      data->min_vl, child_vl);
+		return;
+	}
+
+	ksft_test_result_pass("%s vector length set on exec\n", data->name);
+
+	file_write_integer(data->default_vl_file, data->default_vl);
+}
+
+/* For each VQ verify that setting via prctl() does the right thing */
+static void prctl_set_all_vqs(struct vec_data *data)
+{
+	int ret, vq, vl, new_vl, i;
+	int orig_vls[ARRAY_SIZE(vec_data)];
+	int errors = 0;
+
+	if (!data->min_vl || !data->max_vl) {
+		ksft_test_result_skip("%s Failed to enumerate VLs, not testing VL setting\n",
+				      data->name);
+		return;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(vec_data); i++) {
+		if (!vec_type_supported(&vec_data[i]))
+			continue;
+		orig_vls[i] = vec_data[i].rdvl();
+	}
+
+	for (vq = SVE_VQ_MIN; vq <= SVE_VQ_MAX; vq++) {
+		vl = sve_vl_from_vq(vq);
+
+		/* Attempt to set the VL */
+		ret = prctl(data->prctl_set, vl);
+		if (ret < 0) {
+			errors++;
+			ksft_print_msg("%s prctl set failed for %d: %d (%s)\n",
+				       data->name, vl,
+				       errno, strerror(errno));
+			continue;
+		}
+
+		new_vl = ret & PR_SVE_VL_LEN_MASK;
+
+		/* Check that we actually have the reported new VL */
+		if (data->rdvl() != new_vl) {
+			ksft_print_msg("Set %s VL %d but RDVL reports %d\n",
+				       data->name, new_vl, data->rdvl());
+			errors++;
+		}
+
+		/* Did any other VLs change? */
+		for (i = 0; i < ARRAY_SIZE(vec_data); i++) {
+			if (&vec_data[i] == data)
+				continue;
+
+			if (!vec_type_supported(&vec_data[i]))
+				continue;
+
+			if (vec_data[i].rdvl() != orig_vls[i]) {
+				ksft_print_msg("%s VL changed from %d to %d\n",
+					       vec_data[i].name, orig_vls[i],
+					       vec_data[i].rdvl());
+				errors++;
+			}
+		}
+
+		/* Was that the VL we asked for? */
+		if (new_vl == vl)
+			continue;
+
+		/* Should round up to the minimum VL if below it */
+		if (vl < data->min_vl) {
+			if (new_vl != data->min_vl) {
+				ksft_print_msg("%s VL %d returned %d not minimum %d\n",
+					       data->name, vl, new_vl,
+					       data->min_vl);
+				errors++;
+			}
+
+			continue;
+		}
+
+		/* Should round down to maximum VL if above it */
+		if (vl > data->max_vl) {
+			if (new_vl != data->max_vl) {
+				ksft_print_msg("%s VL %d returned %d not maximum %d\n",
+					       data->name, vl, new_vl,
+					       data->max_vl);
+				errors++;
+			}
+
+			continue;
+		}
+
+		/* Otherwise we should've rounded down */
+		if (!(new_vl < vl)) {
+			ksft_print_msg("%s VL %d returned %d, did not round down\n",
+				       data->name, vl, new_vl);
+			errors++;
+
+			continue;
+		}
+	}
+
+	ksft_test_result(errors == 0, "%s prctl() set all VLs, %d errors\n",
+			 data->name, errors);
+}
+
+typedef void (*test_type)(struct vec_data *);
+
+static const test_type tests[] = {
+	/*
+	 * The default/min/max tests must be first and in this order
+	 * to provide data for other tests.
+	 */
+	proc_read_default,
+	proc_write_min,
+	proc_write_max,
+
+	prctl_get,
+	prctl_set_same,
+	prctl_set,
+	prctl_set_no_child,
+	prctl_set_for_child,
+	prctl_set_onexec,
+	prctl_set_all_vqs,
+};
+
+static inline void smstart(void)
+{
+	asm volatile("msr S0_3_C4_C7_3, xzr");
+}
+
+static inline void smstart_sm(void)
+{
+	asm volatile("msr S0_3_C4_C3_3, xzr");
+}
+
+static inline void smstop(void)
+{
+	asm volatile("msr S0_3_C4_C6_3, xzr");
+}
+
+/*
+ * Verify we can change the SVE vector length while SME is active and
+ * continue to use SME afterwards.
+ */
+static void change_sve_with_za(void)
+{
+	struct vec_data *sve_data = &vec_data[VEC_SVE];
+	bool pass = true;
+	int ret, i;
+
+	if (sve_data->min_vl == sve_data->max_vl) {
+		ksft_print_msg("Only one SVE VL supported, can't change\n");
+		ksft_test_result_skip("change_sve_while_sme\n");
+		return;
+	}
+
+	/* Ensure we will trigger a change when we set the maximum */
+	ret = prctl(sve_data->prctl_set, sve_data->min_vl);
+	if (ret != sve_data->min_vl) {
+		ksft_print_msg("Failed to set SVE VL %d: %d\n",
+			       sve_data->min_vl, ret);
+		pass = false;
+	}
+
+	/* Enable SM and ZA */
+	smstart();
+
+	/* Trigger another VL change */
+	ret = prctl(sve_data->prctl_set, sve_data->max_vl);
+	if (ret != sve_data->max_vl) {
+		ksft_print_msg("Failed to set SVE VL %d: %d\n",
+			       sve_data->max_vl, ret);
+		pass = false;
+	}
+
+	/*
+	 * Spin for a bit with SM enabled to try to trigger another
+	 * save/restore.  We can't use syscalls without exiting
+	 * streaming mode.
+	 */
+	for (i = 0; i < 100000000; i++)
+		smstart_sm();
+
+	/*
+	 * TODO: Verify that ZA was preserved over the VL change and
+	 * spin.
+	 */
+
+	/* Clean up after ourselves */
+	smstop();
+	ret = prctl(sve_data->prctl_set, sve_data->default_vl);
+	if (ret != sve_data->default_vl) {
+	        ksft_print_msg("Failed to restore SVE VL %d: %d\n",
+			       sve_data->default_vl, ret);
+		pass = false;
+	}
+
+	ksft_test_result(pass, "change_sve_with_za\n");
+}
+
+typedef void (*test_all_type)(void);
+
+static const struct {
+	const char *name;
+	test_all_type test;
+}  all_types_tests[] = {
+	{ "change_sve_with_za", change_sve_with_za },
+};
+
+int main(void)
+{
+	bool all_supported = true;
+	int i, j;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests) * ARRAY_SIZE(vec_data) +
+		      ARRAY_SIZE(all_types_tests));
+
+	for (i = 0; i < ARRAY_SIZE(vec_data); i++) {
+		struct vec_data *data = &vec_data[i];
+		unsigned long supported;
+
+		supported = vec_type_supported(data);
+		if (!supported)
+			all_supported = false;
+
+		for (j = 0; j < ARRAY_SIZE(tests); j++) {
+			if (supported)
+				tests[j](data);
+			else
+				ksft_test_result_skip("%s not supported\n",
+						      data->name);
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(all_types_tests); i++) {
+		if (all_supported)
+			all_types_tests[i].test();
+		else
+			ksft_test_result_skip("%s\n", all_types_tests[i].name);
+	}
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/arm64/fp/vlset.c b/tools/testing/selftests/arm64/fp/vlset.c
new file mode 100644
index 000000000000..76912a581a95
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/vlset.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2015-2019 ARM Limited.
+ * Original author: Dave Martin <Dave.Martin@arm.com>
+ */
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <asm/hwcap.h>
+#include <asm/sigcontext.h>
+
+static int inherit = 0;
+static int no_inherit = 0;
+static int force = 0;
+static unsigned long vl;
+static int set_ctl = PR_SVE_SET_VL;
+static int get_ctl = PR_SVE_GET_VL;
+
+static const struct option options[] = {
+	{ "force",	no_argument, NULL, 'f' },
+	{ "inherit",	no_argument, NULL, 'i' },
+	{ "max",	no_argument, NULL, 'M' },
+	{ "no-inherit",	no_argument, &no_inherit, 1 },
+	{ "sme",	no_argument, NULL, 's' },
+	{ "help",	no_argument, NULL, '?' },
+	{}
+};
+
+static char const *program_name;
+
+static int parse_options(int argc, char **argv)
+{
+	int c;
+	char *rest;
+
+	program_name = strrchr(argv[0], '/');
+	if (program_name)
+		++program_name;
+	else
+		program_name = argv[0];
+
+	while ((c = getopt_long(argc, argv, "Mfhi", options, NULL)) != -1)
+		switch (c) {
+		case 'M':	vl = SVE_VL_MAX; break;
+		case 'f':	force = 1; break;
+		case 'i':	inherit = 1; break;
+		case 's':	set_ctl = PR_SME_SET_VL;
+				get_ctl = PR_SME_GET_VL;
+				break;
+		case 0:		break;
+		default:	goto error;
+		}
+
+	if (inherit && no_inherit)
+		goto error;
+
+	if (!vl) {
+		/* vector length */
+		if (optind >= argc)
+			goto error;
+
+		errno = 0;
+		vl = strtoul(argv[optind], &rest, 0);
+		if (*rest) {
+			vl = ULONG_MAX;
+			errno = EINVAL;
+		}
+		if (vl == ULONG_MAX && errno) {
+			fprintf(stderr, "%s: %s: %s\n",
+				program_name, argv[optind], strerror(errno));
+			goto error;
+		}
+
+		++optind;
+	}
+
+	/* command */
+	if (optind >= argc)
+		goto error;
+
+	return 0;
+
+error:
+	fprintf(stderr,
+		"Usage: %s [-f | --force] "
+		"[-i | --inherit | --no-inherit] "
+		"{-M | --max | <vector length>} "
+		"<command> [<arguments> ...]\n",
+		program_name);
+	return -1;
+}
+
+int main(int argc, char **argv)
+{
+	int ret = 126;	/* same as sh(1) command-not-executable error */
+	long flags;
+	char *path;
+	int t, e;
+
+	if (parse_options(argc, argv))
+		return 2;	/* same as sh(1) builtin incorrect-usage */
+
+	if (vl & ~(vl & PR_SVE_VL_LEN_MASK)) {
+		fprintf(stderr, "%s: Invalid vector length %lu\n",
+			program_name, vl);
+		return 2;	/* same as sh(1) builtin incorrect-usage */
+	}
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_SVE)) {
+		fprintf(stderr, "%s: Scalable Vector Extension not present\n",
+			program_name);
+
+		if (!force)
+			goto error;
+
+		fputs("Going ahead anyway (--force):  "
+		      "This is a debug option.  Don't rely on it.\n",
+		      stderr);
+	}
+
+	flags = PR_SVE_SET_VL_ONEXEC;
+	if (inherit)
+		flags |= PR_SVE_VL_INHERIT;
+
+	t = prctl(set_ctl, vl | flags);
+	if (t < 0) {
+		fprintf(stderr, "%s: PR_SVE_SET_VL: %s\n",
+			program_name, strerror(errno));
+		goto error;
+	}
+
+	t = prctl(get_ctl);
+	if (t == -1) {
+		fprintf(stderr, "%s: PR_SVE_GET_VL: %s\n",
+			program_name, strerror(errno));
+		goto error;
+	}
+	flags = PR_SVE_VL_LEN_MASK;
+	flags = t & ~flags;
+
+	assert(optind < argc);
+	path = argv[optind];
+
+	execvp(path, &argv[optind]);
+	e = errno;
+	if (errno == ENOENT)
+		ret = 127;	/* same as sh(1) not-found error */
+	fprintf(stderr, "%s: %s: %s\n", program_name, path, strerror(e));
+
+error:
+	return ret;		/* same as sh(1) not-executable error */
+}
diff --git a/tools/testing/selftests/arm64/fp/za-fork-asm.S b/tools/testing/selftests/arm64/fp/za-fork-asm.S
new file mode 100644
index 000000000000..2fafadd491c3
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/za-fork-asm.S
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021 ARM Limited.
+
+#include "sme-inst.h"
+
+.arch_extension sve
+
+#define MAGIC     42
+
+#define MAXVL     2048
+#define MAXVL_B   (MAXVL / 8)
+
+.pushsection .text
+.data
+.align 4
+scratch:
+	.space	MAXVL_B
+.popsection
+
+.globl fork_test
+fork_test:
+	smstart_za
+
+	// For simplicity just set one word in one vector, other tests
+	// cover general data corruption issues.
+	ldr	x0, =scratch
+	mov	x1, #MAGIC
+	str	x1, [x0]
+	mov	w12, wzr
+	_ldr_za 12, 0			// ZA.H[W12] loaded from [X0]
+
+	// Tail call into the C portion that does the fork & verify
+	b	fork_test_c
+
+.globl verify_fork
+verify_fork:
+	// SVCR should have ZA=1, SM=0
+	mrs	x0, S3_3_C4_C2_2
+	and	x1, x0, #3
+	cmp	x1, #2
+	beq	1f
+	mov	x0, xzr
+	b	100f
+1:
+
+	// ZA should still have the value we loaded
+	ldr	x0, =scratch
+	mov	w12, wzr
+	_str_za 12, 0			// ZA.H[W12] stored to [X0]
+	ldr	x1, [x0]
+	cmp	x1, #MAGIC
+	beq	2f
+	mov	x0, xzr
+	b	100f
+
+2:
+	// All tests passed
+	mov	x0, #1
+100:
+	ret
+
diff --git a/tools/testing/selftests/arm64/fp/za-fork.c b/tools/testing/selftests/arm64/fp/za-fork.c
new file mode 100644
index 000000000000..587b94648222
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/za-fork.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 ARM Limited.
+ * Original author: Mark Brown <broonie@kernel.org>
+ */
+
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/sched.h>
+#include <linux/wait.h>
+
+#include "kselftest.h"
+
+#define EXPECTED_TESTS 1
+
+int fork_test(void);
+int verify_fork(void);
+
+/*
+ * If we fork the value in the parent should be unchanged and the
+ * child should start with the same value.  This is called from the
+ * fork_test() asm function.
+ */
+int fork_test_c(void)
+{
+	pid_t newpid, waiting;
+	int child_status, parent_result;
+
+	newpid = fork();
+	if (newpid == 0) {
+		/* In child */
+		if (!verify_fork()) {
+			ksft_print_msg("ZA state invalid in child\n");
+			exit(0);
+		} else {
+			exit(1);
+		}
+	}
+	if (newpid < 0) {
+		ksft_print_msg("fork() failed: %d\n", newpid);
+
+		return 0;
+	}
+
+	parent_result = verify_fork();
+	if (!parent_result)
+		ksft_print_msg("ZA state invalid in parent\n");
+
+	for (;;) {
+		waiting = waitpid(newpid, &child_status, 0);
+
+		if (waiting < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_print_msg("waitpid() failed: %d\n", errno);
+			return 0;
+		}
+		if (waiting != newpid) {
+			ksft_print_msg("waitpid() returned wrong PID\n");
+			return 0;
+		}
+
+		if (!WIFEXITED(child_status)) {
+			ksft_print_msg("child did not exit\n");
+			return 0;
+		}
+
+		return WEXITSTATUS(child_status) && parent_result;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int ret, i;
+
+	ksft_print_header();
+	ksft_set_plan(EXPECTED_TESTS);
+
+	ksft_print_msg("PID: %d\n", getpid());
+
+	/*
+	 * This test is run with nolibc which doesn't support hwcap and
+	 * it's probably disproportionate to implement so instead check
+	 * for the default vector length configuration in /proc.
+	 */
+	ret = open("/proc/sys/abi/sme_default_vector_length", O_RDONLY, 0);
+	if (ret >= 0) {
+		ksft_test_result(fork_test(), "fork_test\n");
+
+	} else {
+		ksft_print_msg("SME not supported\n");
+		for (i = 0; i < EXPECTED_TESTS; i++) {
+			ksft_test_result_skip("fork_test\n");
+		}
+	}
+
+	ksft_finished();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/fp/za-ptrace.c b/tools/testing/selftests/arm64/fp/za-ptrace.c
new file mode 100644
index 000000000000..787eed22d059
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/za-ptrace.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 ARM Limited.
+ */
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/sigcontext.h>
+#include <asm/ptrace.h>
+
+#include "kselftest.h"
+
+/* <linux/elf.h> and <sys/auxv.h> don't like each other, so: */
+#ifndef NT_ARM_ZA
+#define NT_ARM_ZA 0x40c
+#endif
+
+/*
+ * The architecture defines the maximum VQ as 16 but for extensibility
+ * the kernel specifies the SVE_VQ_MAX as 512 resulting in us running
+ * a *lot* more tests than are useful if we use it.  Until the
+ * architecture is extended let's limit our coverage to what is
+ * currently allowed, plus one extra to ensure we cover constraining
+ * the VL as expected.
+ */
+#define TEST_VQ_MAX 17
+
+#define EXPECTED_TESTS (((TEST_VQ_MAX - SVE_VQ_MIN) + 1) * 3)
+
+static void fill_buf(char *buf, size_t size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		buf[i] = random();
+}
+
+static int do_child(void)
+{
+	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
+		ksft_exit_fail_msg("ptrace(PTRACE_TRACEME) failed: %s (%d)",
+				   strerror(errno), errno);
+
+	if (raise(SIGSTOP))
+		ksft_exit_fail_msg("raise(SIGSTOP) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	return EXIT_SUCCESS;
+}
+
+static struct user_za_header *get_za(pid_t pid, void **buf, size_t *size)
+{
+	struct user_za_header *za;
+	void *p;
+	size_t sz = sizeof(*za);
+	struct iovec iov;
+
+	while (1) {
+		if (*size < sz) {
+			p = realloc(*buf, sz);
+			if (!p) {
+				errno = ENOMEM;
+				goto error;
+			}
+
+			*buf = p;
+			*size = sz;
+		}
+
+		iov.iov_base = *buf;
+		iov.iov_len = sz;
+		if (ptrace(PTRACE_GETREGSET, pid, NT_ARM_ZA, &iov))
+			goto error;
+
+		za = *buf;
+		if (za->size <= sz)
+			break;
+
+		sz = za->size;
+	}
+
+	return za;
+
+error:
+	return NULL;
+}
+
+static int set_za(pid_t pid, const struct user_za_header *za)
+{
+	struct iovec iov;
+
+	iov.iov_base = (void *)za;
+	iov.iov_len = za->size;
+	return ptrace(PTRACE_SETREGSET, pid, NT_ARM_ZA, &iov);
+}
+
+/* Validate attempting to set the specfied VL via ptrace */
+static void ptrace_set_get_vl(pid_t child, unsigned int vl, bool *supported)
+{
+	struct user_za_header za;
+	struct user_za_header *new_za = NULL;
+	size_t new_za_size = 0;
+	int ret, prctl_vl;
+
+	*supported = false;
+
+	/* Check if the VL is supported in this process */
+	prctl_vl = prctl(PR_SME_SET_VL, vl);
+	if (prctl_vl == -1)
+		ksft_exit_fail_msg("prctl(PR_SME_SET_VL) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	/* If the VL is not supported then a supported VL will be returned */
+	*supported = (prctl_vl == vl);
+
+	/* Set the VL by doing a set with no register payload */
+	memset(&za, 0, sizeof(za));
+	za.size = sizeof(za);
+	za.vl = vl;
+	ret = set_za(child, &za);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set VL %u\n", vl);
+		return;
+	}
+
+	/*
+	 * Read back the new register state and verify that we have the
+	 * same VL that we got from prctl() on ourselves.
+	 */
+	if (!get_za(child, (void **)&new_za, &new_za_size)) {
+		ksft_test_result_fail("Failed to read VL %u\n", vl);
+		return;
+	}
+
+	ksft_test_result(new_za->vl = prctl_vl, "Set VL %u\n", vl);
+
+	free(new_za);
+}
+
+/* Validate attempting to set no ZA data and read it back */
+static void ptrace_set_no_data(pid_t child, unsigned int vl)
+{
+	void *read_buf = NULL;
+	struct user_za_header write_za;
+	struct user_za_header *read_za;
+	size_t read_za_size = 0;
+	int ret;
+
+	/* Set up some data and write it out */
+	memset(&write_za, 0, sizeof(write_za));
+	write_za.size = ZA_PT_ZA_OFFSET;
+	write_za.vl = vl;
+
+	ret = set_za(child, &write_za);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set VL %u no data\n", vl);
+		return;
+	}
+
+	/* Read the data back */
+	if (!get_za(child, (void **)&read_buf, &read_za_size)) {
+		ksft_test_result_fail("Failed to read VL %u no data\n", vl);
+		return;
+	}
+	read_za = read_buf;
+
+	/* We might read more data if there's extensions we don't know */
+	if (read_za->size < write_za.size) {
+		ksft_test_result_fail("VL %u wrote %d bytes, only read %d\n",
+				      vl, write_za.size, read_za->size);
+		goto out_read;
+	}
+
+	ksft_test_result(read_za->size == write_za.size,
+			 "Disabled ZA for VL %u\n", vl);
+
+out_read:
+	free(read_buf);
+}
+
+/* Validate attempting to set data and read it back */
+static void ptrace_set_get_data(pid_t child, unsigned int vl)
+{
+	void *write_buf;
+	void *read_buf = NULL;
+	struct user_za_header *write_za;
+	struct user_za_header *read_za;
+	size_t read_za_size = 0;
+	unsigned int vq = sve_vq_from_vl(vl);
+	int ret;
+	size_t data_size;
+
+	data_size = ZA_PT_SIZE(vq);
+	write_buf = malloc(data_size);
+	if (!write_buf) {
+		ksft_test_result_fail("Error allocating %ld byte buffer for VL %u\n",
+				      data_size, vl);
+		return;
+	}
+	write_za = write_buf;
+
+	/* Set up some data and write it out */
+	memset(write_za, 0, data_size);
+	write_za->size = data_size;
+	write_za->vl = vl;
+
+	fill_buf(write_buf + ZA_PT_ZA_OFFSET, ZA_PT_ZA_SIZE(vq));
+
+	ret = set_za(child, write_za);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set VL %u data\n", vl);
+		goto out;
+	}
+
+	/* Read the data back */
+	if (!get_za(child, (void **)&read_buf, &read_za_size)) {
+		ksft_test_result_fail("Failed to read VL %u data\n", vl);
+		goto out;
+	}
+	read_za = read_buf;
+
+	/* We might read more data if there's extensions we don't know */
+	if (read_za->size < write_za->size) {
+		ksft_test_result_fail("VL %u wrote %d bytes, only read %d\n",
+				      vl, write_za->size, read_za->size);
+		goto out_read;
+	}
+
+	ksft_test_result(memcmp(write_buf + ZA_PT_ZA_OFFSET,
+				read_buf + ZA_PT_ZA_OFFSET,
+				ZA_PT_ZA_SIZE(vq)) == 0,
+			 "Data match for VL %u\n", vl);
+
+out_read:
+	free(read_buf);
+out:
+	free(write_buf);
+}
+
+static int do_parent(pid_t child)
+{
+	int ret = EXIT_FAILURE;
+	pid_t pid;
+	int status;
+	siginfo_t si;
+	unsigned int vq, vl;
+	bool vl_supported;
+
+	/* Attach to the child */
+	while (1) {
+		int sig;
+
+		pid = wait(&status);
+		if (pid == -1) {
+			perror("wait");
+			goto error;
+		}
+
+		/*
+		 * This should never happen but it's hard to flag in
+		 * the framework.
+		 */
+		if (pid != child)
+			continue;
+
+		if (WIFEXITED(status) || WIFSIGNALED(status))
+			ksft_exit_fail_msg("Child died unexpectedly\n");
+
+		if (!WIFSTOPPED(status))
+			goto error;
+
+		sig = WSTOPSIG(status);
+
+		if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &si)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			if (errno == EINVAL) {
+				sig = 0; /* bust group-stop */
+				goto cont;
+			}
+
+			ksft_test_result_fail("PTRACE_GETSIGINFO: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+
+		if (sig == SIGSTOP && si.si_code == SI_TKILL &&
+		    si.si_pid == pid)
+			break;
+
+	cont:
+		if (ptrace(PTRACE_CONT, pid, NULL, sig)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			ksft_test_result_fail("PTRACE_CONT: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+	}
+
+	ksft_print_msg("Parent is %d, child is %d\n", getpid(), child);
+
+	/* Step through every possible VQ */
+	for (vq = SVE_VQ_MIN; vq <= TEST_VQ_MAX; vq++) {
+		vl = sve_vl_from_vq(vq);
+
+		/* First, try to set this vector length */
+		ptrace_set_get_vl(child, vl, &vl_supported);
+
+		/* If the VL is supported validate data set/get */
+		if (vl_supported) {
+			ptrace_set_no_data(child, vl);
+			ptrace_set_get_data(child, vl);
+		} else {
+			ksft_test_result_skip("Disabled ZA for VL %u\n", vl);
+			ksft_test_result_skip("Get and set data for VL %u\n",
+					      vl);
+		}
+	}
+
+	ret = EXIT_SUCCESS;
+
+error:
+	kill(child, SIGKILL);
+
+disappeared:
+	return ret;
+}
+
+int main(void)
+{
+	int ret = EXIT_SUCCESS;
+	pid_t child;
+
+	srandom(getpid());
+
+	ksft_print_header();
+
+	if (!(getauxval(AT_HWCAP2) & HWCAP2_SME)) {
+		ksft_set_plan(1);
+		ksft_exit_skip("SME not available\n");
+	}
+
+	ksft_set_plan(EXPECTED_TESTS);
+
+	child = fork();
+	if (!child)
+		return do_child();
+
+	if (do_parent(child))
+		ret = EXIT_FAILURE;
+
+	ksft_print_cnts();
+
+	return ret;
+}
diff --git a/tools/testing/selftests/arm64/fp/za-stress b/tools/testing/selftests/arm64/fp/za-stress
new file mode 100644
index 000000000000..5ac386b55b95
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/za-stress
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2015-2019 ARM Limited.
+# Original author: Dave Martin <Dave.Martin@arm.com>
+
+set -ue
+
+NR_CPUS=`nproc`
+
+pids=
+logs=
+
+cleanup () {
+	trap - INT TERM CHLD
+	set +e
+
+	if [ -n "$pids" ]; then
+		kill $pids
+		wait $pids
+		pids=
+	fi
+
+	if [ -n "$logs" ]; then
+		cat $logs
+		rm $logs
+		logs=
+	fi
+}
+
+interrupt () {
+	cleanup
+	exit 0
+}
+
+child_died () {
+	cleanup
+	exit 1
+}
+
+trap interrupt INT TERM EXIT
+
+for x in `seq 0 $((NR_CPUS * 4))`; do
+	log=`mktemp`
+	logs=$logs\ $log
+	./za-test >$log &
+	pids=$pids\ $!
+done
+
+# Wait for all child processes to be created:
+sleep 10
+
+while :; do
+	kill -USR1 $pids
+done &
+pids=$pids\ $!
+
+wait
+
+exit 1
diff --git a/tools/testing/selftests/arm64/fp/za-test.S b/tools/testing/selftests/arm64/fp/za-test.S
new file mode 100644
index 000000000000..9c33e13e9dc4
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/za-test.S
@@ -0,0 +1,400 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021 ARM Limited.
+// Original author: Mark Brown <broonie@kernel.org>
+//
+// Scalable Matrix Extension ZA context switch test
+// Repeatedly writes unique test patterns into each ZA tile
+// and reads them back to verify integrity.
+//
+// for x in `seq 1 NR_CPUS`; do sve-test & pids=$pids\ $! ; done
+// (leave it running for as long as you want...)
+// kill $pids
+
+#include <asm/unistd.h>
+#include "assembler.h"
+#include "asm-offsets.h"
+#include "sme-inst.h"
+
+.arch_extension sve
+
+#define MAXVL     2048
+#define MAXVL_B   (MAXVL / 8)
+
+// Declare some storage space to shadow ZA register contents and a
+// scratch buffer for a vector.
+.pushsection .text
+.data
+.align 4
+zaref:
+	.space	MAXVL_B * MAXVL_B
+scratch:
+	.space	MAXVL_B
+.popsection
+
+// Trivial memory copy: copy x2 bytes, starting at address x1, to address x0.
+// Clobbers x0-x3
+function memcpy
+	cmp	x2, #0
+	b.eq	1f
+0:	ldrb	w3, [x1], #1
+	strb	w3, [x0], #1
+	subs	x2, x2, #1
+	b.ne	0b
+1:	ret
+endfunction
+
+// Generate a test pattern for storage in ZA
+// x0: pid
+// x1: row in ZA
+// x2: generation
+
+// These values are used to constuct a 32-bit pattern that is repeated in the
+// scratch buffer as many times as will fit:
+// bits 31:28	generation number (increments once per test_loop)
+// bits 27:16	pid
+// bits 15: 8	row number
+// bits  7: 0	32-bit lane index
+
+function pattern
+	mov	w3, wzr
+	bfi	w3, w0, #16, #12	// PID
+	bfi	w3, w1, #8, #8		// Row
+	bfi	w3, w2, #28, #4		// Generation
+
+	ldr	x0, =scratch
+	mov	w1, #MAXVL_B / 4
+
+0:	str	w3, [x0], #4
+	add	w3, w3, #1		// Lane
+	subs	w1, w1, #1
+	b.ne	0b
+
+	ret
+endfunction
+
+// Get the address of shadow data for ZA horizontal vector xn
+.macro _adrza xd, xn, nrtmp
+	ldr	\xd, =zaref
+	rdsvl	\nrtmp, 1
+	madd	\xd, x\nrtmp, \xn, \xd
+.endm
+
+// Set up test pattern in a ZA horizontal vector
+// x0: pid
+// x1: row number
+// x2: generation
+function setup_za
+	mov	x4, x30
+	mov	x12, x1			// Use x12 for vector select
+
+	bl	pattern			// Get pattern in scratch buffer
+	_adrza	x0, x12, 2		// Shadow buffer pointer to x0 and x5
+	mov	x5, x0
+	ldr	x1, =scratch
+	bl	memcpy			// length set up in x2 by _adrza
+
+	_ldr_za 12, 5			// load vector w12 from pointer x5
+
+	ret	x4
+endfunction
+
+// Trivial memory compare: compare x2 bytes starting at address x0 with
+// bytes starting at address x1.
+// Returns only if all bytes match; otherwise, the program is aborted.
+// Clobbers x0-x5.
+function memcmp
+	cbz	x2, 2f
+
+	stp	x0, x1, [sp, #-0x20]!
+	str	x2, [sp, #0x10]
+
+	mov	x5, #0
+0:	ldrb	w3, [x0, x5]
+	ldrb	w4, [x1, x5]
+	add	x5, x5, #1
+	cmp	w3, w4
+	b.ne	1f
+	subs	x2, x2, #1
+	b.ne	0b
+
+1:	ldr	x2, [sp, #0x10]
+	ldp	x0, x1, [sp], #0x20
+	b.ne	barf
+
+2:	ret
+endfunction
+
+// Verify that a ZA vector matches its shadow in memory, else abort
+// x0: row number
+// Clobbers x0-x7 and x12.
+function check_za
+	mov	x3, x30
+
+	mov	x12, x0
+	_adrza	x5, x0, 6		// pointer to expected value in x5
+	mov	x4, x0
+	ldr	x7, =scratch		// x7 is scratch
+
+	mov	x0, x7			// Poison scratch
+	mov	x1, x6
+	bl	memfill_ae
+
+	_str_za 12, 7			// save vector w12 to pointer x7
+
+	mov	x0, x5
+	mov	x1, x7
+	mov	x2, x6
+	mov	x30, x3
+	b	memcmp
+endfunction
+
+// Modify the live SME register state, signal return will undo our changes
+function irritator_handler
+	// Increment the irritation signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	// This will reset ZA to all bits 0
+	smstop
+	smstart_za
+
+	ret
+endfunction
+
+function tickle_handler
+	// Increment the signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	ret
+endfunction
+
+function terminate_handler
+	mov	w21, w0
+	mov	x20, x2
+
+	puts	"Terminated by signal "
+	mov	w0, w21
+	bl	putdec
+	puts	", no error, iterations="
+	ldr	x0, [x20, #ucontext_regs + 8 * 22]
+	bl	putdec
+	puts	", signals="
+	ldr	x0, [x20, #ucontext_regs + 8 * 23]
+	bl	putdecn
+
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
+endfunction
+
+// w0: signal number
+// x1: sa_action
+// w2: sa_flags
+// Clobbers x0-x6,x8
+function setsignal
+	str	x30, [sp, #-((sa_sz + 15) / 16 * 16 + 16)]!
+
+	mov	w4, w0
+	mov	x5, x1
+	mov	w6, w2
+
+	add	x0, sp, #16
+	mov	x1, #sa_sz
+	bl	memclr
+
+	mov	w0, w4
+	add	x1, sp, #16
+	str	w6, [x1, #sa_flags]
+	str	x5, [x1, #sa_handler]
+	mov	x2, #0
+	mov	x3, #sa_mask_sz
+	mov	x8, #__NR_rt_sigaction
+	svc	#0
+
+	cbz	w0, 1f
+
+	puts	"sigaction failure\n"
+	b	.Labort
+
+1:	ldr	x30, [sp], #((sa_sz + 15) / 16 * 16 + 16)
+	ret
+endfunction
+
+// Main program entry point
+.globl _start
+function _start
+	enable_gcs
+
+	mov	x23, #0		// signal count
+
+	mov	w0, #SIGINT
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGTERM
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGUSR1
+	adr	x1, irritator_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	mov	w0, #SIGUSR2
+	adr	x1, tickle_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	puts	"Streaming mode "
+	smstart_za
+
+	// Sanity-check and report the vector length
+
+	rdsvl	19, 8
+	cmp	x19, #128
+	b.lo	1f
+	cmp	x19, #2048
+	b.hi	1f
+	tst	x19, #(8 - 1)
+	b.eq	2f
+
+1:	puts	"bad vector length: "
+	mov	x0, x19
+	bl	putdecn
+	b	.Labort
+
+2:	puts	"vector length:\t"
+	mov	x0, x19
+	bl	putdec
+	puts	" bits\n"
+
+	// Obtain our PID, to ensure test pattern uniqueness between processes
+	mov	x8, #__NR_getpid
+	svc	#0
+	mov	x20, x0
+
+	puts	"PID:\t"
+	mov	x0, x20
+	bl	putdecn
+
+	mov	x22, #0		// generation number, increments per iteration
+.Ltest_loop:
+	rdsvl	0, 8
+	cmp	x0, x19
+	b.ne	vl_barf
+
+	rdsvl	21, 1		// Set up ZA & shadow with test pattern
+0:	mov	x0, x20
+	sub	x1, x21, #1
+	mov	x2, x22
+	bl	setup_za
+	subs	x21, x21, #1
+	b.ne	0b
+
+	mov	x8, #__NR_sched_yield	// encourage preemption
+1:
+	svc	#0
+
+	mrs	x0, S3_3_C4_C2_2	// SVCR should have ZA=1,SM=0
+	and	x1, x0, #3
+	cmp	x1, #2
+	b.ne	svcr_barf
+
+	rdsvl	21, 1			// Verify that the data made it through
+	rdsvl	24, 1			// Verify that the data made it through
+0:	sub	x0, x24, x21
+	bl	check_za
+	subs	x21, x21, #1
+	bne	0b
+
+	add	x22, x22, #1	// Everything still working
+	b	.Ltest_loop
+
+.Labort:
+	mov	x0, #0
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+endfunction
+
+function barf
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// end hack
+
+	mrs	x13, S3_3_C4_C2_2
+
+	smstop
+	mov	x10, x0	// expected data
+	mov	x11, x1	// actual data
+	mov	x12, x2	// data size
+
+	puts	"Mismatch: PID="
+	mov	x0, x20
+	bl	putdec
+	puts	", iteration="
+	mov	x0, x22
+	bl	putdec
+	puts	", row="
+	mov	x0, x21
+	bl	putdecn
+	puts	"\tExpected ["
+	mov	x0, x10
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n\tGot      ["
+	mov	x0, x11
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n"
+	puts	"\tSVCR: "
+	mov	x0, x13
+	bl	putdecn
+
+	mov	x8, #__NR_getpid
+	svc	#0
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// ^ end of hack
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+//	mov	x8, #__NR_exit
+//	mov	x1, #1
+//	svc	#0
+endfunction
+
+function vl_barf
+	mov	x10, x0
+
+	puts	"Bad active VL: "
+	mov	x0, x10
+	bl	putdecn
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
+
+function svcr_barf
+	mov	x10, x0
+
+	puts	"Bad SVCR: "
+	mov	x0, x10
+	bl	putdecn
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
diff --git a/tools/testing/selftests/arm64/fp/zt-ptrace.c b/tools/testing/selftests/arm64/fp/zt-ptrace.c
new file mode 100644
index 000000000000..f3fa49fd0fbd
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/zt-ptrace.c
@@ -0,0 +1,366 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 ARM Limited.
+ */
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/sigcontext.h>
+#include <asm/ptrace.h>
+
+#include "kselftest.h"
+
+/* <linux/elf.h> and <sys/auxv.h> don't like each other, so: */
+#ifndef NT_ARM_ZA
+#define NT_ARM_ZA 0x40c
+#endif
+#ifndef NT_ARM_ZT
+#define NT_ARM_ZT 0x40d
+#endif
+
+#define EXPECTED_TESTS 3
+
+static int sme_vl;
+
+static void fill_buf(char *buf, size_t size)
+{
+	int i;
+
+	for (i = 0; i < size; i++)
+		buf[i] = random();
+}
+
+static int do_child(void)
+{
+	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
+		ksft_exit_fail_msg("ptrace(PTRACE_TRACEME) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	if (raise(SIGSTOP))
+		ksft_exit_fail_msg("raise(SIGSTOP) failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	return EXIT_SUCCESS;
+}
+
+static struct user_za_header *get_za(pid_t pid, void **buf, size_t *size)
+{
+	struct user_za_header *za;
+	void *p;
+	size_t sz = sizeof(*za);
+	struct iovec iov;
+
+	while (1) {
+		if (*size < sz) {
+			p = realloc(*buf, sz);
+			if (!p) {
+				errno = ENOMEM;
+				goto error;
+			}
+
+			*buf = p;
+			*size = sz;
+		}
+
+		iov.iov_base = *buf;
+		iov.iov_len = sz;
+		if (ptrace(PTRACE_GETREGSET, pid, NT_ARM_ZA, &iov))
+			goto error;
+
+		za = *buf;
+		if (za->size <= sz)
+			break;
+
+		sz = za->size;
+	}
+
+	return za;
+
+error:
+	return NULL;
+}
+
+static int set_za(pid_t pid, const struct user_za_header *za)
+{
+	struct iovec iov;
+
+	iov.iov_base = (void *)za;
+	iov.iov_len = za->size;
+	return ptrace(PTRACE_SETREGSET, pid, NT_ARM_ZA, &iov);
+}
+
+static int get_zt(pid_t pid, char zt[ZT_SIG_REG_BYTES])
+{
+	struct iovec iov;
+
+	iov.iov_base = zt;
+	iov.iov_len = ZT_SIG_REG_BYTES;
+	return ptrace(PTRACE_GETREGSET, pid, NT_ARM_ZT, &iov);
+}
+
+static int set_zt(pid_t pid, const char zt[ZT_SIG_REG_BYTES])
+{
+	struct iovec iov;
+
+	iov.iov_base = (void *)zt;
+	iov.iov_len = ZT_SIG_REG_BYTES;
+	return ptrace(PTRACE_SETREGSET, pid, NT_ARM_ZT, &iov);
+}
+
+/* Reading with ZA disabled returns all zeros */
+static void ptrace_za_disabled_read_zt(pid_t child)
+{
+	struct user_za_header za;
+	char zt[ZT_SIG_REG_BYTES];
+	int ret, i;
+	bool fail = false;
+
+	/* Disable PSTATE.ZA using the ZA interface */
+	memset(&za, 0, sizeof(za));
+	za.vl = sme_vl;
+	za.size = sizeof(za);
+
+	ret = set_za(child, &za);
+	if (ret != 0) {
+		ksft_print_msg("Failed to disable ZA\n");
+		fail = true;
+	}
+
+	/* Read back ZT */
+	ret = get_zt(child, zt);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read ZT\n");
+		fail = true;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(zt); i++) {
+		if (zt[i]) {
+			ksft_print_msg("zt[%d]: 0x%x != 0\n", i, zt[i]);
+			fail = true;
+		}
+	}
+
+	ksft_test_result(!fail, "ptrace_za_disabled_read_zt\n");
+}
+
+/* Writing then reading ZT should return the data written */
+static void ptrace_set_get_zt(pid_t child)
+{
+	char zt_in[ZT_SIG_REG_BYTES];
+	char zt_out[ZT_SIG_REG_BYTES];
+	int ret, i;
+	bool fail = false;
+
+	fill_buf(zt_in, sizeof(zt_in));
+
+	ret = set_zt(child, zt_in);
+	if (ret != 0) {
+		ksft_print_msg("Failed to set ZT\n");
+		fail = true;
+	}
+
+	ret = get_zt(child, zt_out);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read ZT\n");
+		fail = true;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(zt_in); i++) {
+		if (zt_in[i] != zt_out[i]) {
+			ksft_print_msg("zt[%d]: 0x%x != 0x%x\n", i, 
+				       zt_in[i], zt_out[i]);
+			fail = true;
+		}
+	}
+
+	ksft_test_result(!fail, "ptrace_set_get_zt\n");
+}
+
+/* Writing ZT should set PSTATE.ZA */
+static void ptrace_enable_za_via_zt(pid_t child)
+{
+	struct user_za_header za_in;
+	struct user_za_header *za_out;
+	char zt[ZT_SIG_REG_BYTES];
+	char *za_data;
+	size_t za_out_size;
+	int ret, i, vq;
+	bool fail = false;
+
+	/* Disable PSTATE.ZA using the ZA interface */
+	memset(&za_in, 0, sizeof(za_in));
+	za_in.vl = sme_vl;
+	za_in.size = sizeof(za_in);
+
+	ret = set_za(child, &za_in);
+	if (ret != 0) {
+		ksft_print_msg("Failed to disable ZA\n");
+		fail = true;
+	}
+
+	/* Write ZT */
+	fill_buf(zt, sizeof(zt));
+	ret = set_zt(child, zt);
+	if (ret != 0) {
+		ksft_print_msg("Failed to set ZT\n");
+		fail = true;
+	}
+
+	/* Read back ZA and check for register data */
+	za_out = NULL;
+	za_out_size = 0;
+	if (get_za(child, (void **)&za_out, &za_out_size)) {
+		/* Should have an unchanged VL */
+		if (za_out->vl != sme_vl) {
+			ksft_print_msg("VL changed from %d to %d\n",
+				       sme_vl, za_out->vl);
+			fail = true;
+		}
+		vq = __sve_vq_from_vl(za_out->vl);
+		za_data = (char *)za_out + ZA_PT_ZA_OFFSET;
+
+		/* Should have register data */
+		if (za_out->size < ZA_PT_SIZE(vq)) {
+			ksft_print_msg("ZA data less than expected: %u < %u\n",
+				       za_out->size, (unsigned int)ZA_PT_SIZE(vq));
+			fail = true;
+			vq = 0;
+		}
+
+		/* That register data should be non-zero */
+		for (i = 0; i < ZA_PT_ZA_SIZE(vq); i++) {
+			if (za_data[i]) {
+				ksft_print_msg("ZA byte %d is %x\n",
+					       i, za_data[i]);
+				fail = true;
+			}
+		}
+	} else {
+		ksft_print_msg("Failed to read ZA\n");
+		fail = true;
+	}
+
+	ksft_test_result(!fail, "ptrace_enable_za_via_zt\n");
+}
+
+static int do_parent(pid_t child)
+{
+	int ret = EXIT_FAILURE;
+	pid_t pid;
+	int status;
+	siginfo_t si;
+
+	/* Attach to the child */
+	while (1) {
+		int sig;
+
+		pid = wait(&status);
+		if (pid == -1) {
+			perror("wait");
+			goto error;
+		}
+
+		/*
+		 * This should never happen but it's hard to flag in
+		 * the framework.
+		 */
+		if (pid != child)
+			continue;
+
+		if (WIFEXITED(status) || WIFSIGNALED(status))
+			ksft_exit_fail_msg("Child died unexpectedly\n");
+
+		if (!WIFSTOPPED(status))
+			goto error;
+
+		sig = WSTOPSIG(status);
+
+		if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &si)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			if (errno == EINVAL) {
+				sig = 0; /* bust group-stop */
+				goto cont;
+			}
+
+			ksft_test_result_fail("PTRACE_GETSIGINFO: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+
+		if (sig == SIGSTOP && si.si_code == SI_TKILL &&
+		    si.si_pid == pid)
+			break;
+
+	cont:
+		if (ptrace(PTRACE_CONT, pid, NULL, sig)) {
+			if (errno == ESRCH)
+				goto disappeared;
+
+			ksft_test_result_fail("PTRACE_CONT: %s\n",
+					      strerror(errno));
+			goto error;
+		}
+	}
+
+	ksft_print_msg("Parent is %d, child is %d\n", getpid(), child);
+
+	ptrace_za_disabled_read_zt(child);
+	ptrace_set_get_zt(child);
+	ptrace_enable_za_via_zt(child);
+
+	ret = EXIT_SUCCESS;
+
+error:
+	kill(child, SIGKILL);
+
+disappeared:
+	return ret;
+}
+
+int main(void)
+{
+	int ret = EXIT_SUCCESS;
+	pid_t child;
+
+	srandom(getpid());
+
+	ksft_print_header();
+
+	if (!(getauxval(AT_HWCAP2) & HWCAP2_SME2)) {
+		ksft_set_plan(1);
+		ksft_exit_skip("SME2 not available\n");
+	}
+
+	/* We need a valid SME VL to enable/disable ZA */
+	sme_vl = prctl(PR_SME_GET_VL);
+	if (sme_vl == -1) {
+		ksft_set_plan(1);
+		ksft_exit_skip("Failed to read SME VL: %d (%s)\n",
+			       errno, strerror(errno));
+	}
+
+	ksft_set_plan(EXPECTED_TESTS);
+
+	child = fork();
+	if (!child)
+		return do_child();
+
+	if (do_parent(child))
+		ret = EXIT_FAILURE;
+
+	ksft_print_cnts();
+
+	return ret;
+}
diff --git a/tools/testing/selftests/arm64/fp/zt-test.S b/tools/testing/selftests/arm64/fp/zt-test.S
new file mode 100644
index 000000000000..a8df05771670
--- /dev/null
+++ b/tools/testing/selftests/arm64/fp/zt-test.S
@@ -0,0 +1,318 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (C) 2021-2 ARM Limited.
+// Original author: Mark Brown <broonie@kernel.org>
+//
+// Scalable Matrix Extension ZT context switch test
+// Repeatedly writes unique test patterns into ZT0
+// and reads them back to verify integrity.
+
+#include <asm/unistd.h>
+#include "assembler.h"
+#include "asm-offsets.h"
+#include "sme-inst.h"
+
+.arch_extension sve
+
+#define ZT_SZ	512
+#define ZT_B	(ZT_SZ / 8)
+
+// Declare some storage space to shadow ZT register contents and a
+// scratch buffer.
+.pushsection .text
+.data
+.align 4
+ztref:
+	.space	ZT_B
+scratch:
+	.space	ZT_B
+.popsection
+
+
+// Generate a test pattern for storage in ZT
+// x0: pid
+// x1: generation
+
+// These values are used to construct a 32-bit pattern that is repeated in the
+// scratch buffer as many times as will fit:
+// bits 31:24	generation number (increments once per test_loop)
+// bits 23: 8	pid
+// bits  7: 0	32-bit lane index
+
+function pattern
+	mov	w3, wzr
+	bfi	w3, w0, #8, #16		// PID
+	bfi	w3, w1, #24, #8		// Generation
+
+	ldr	x0, =scratch
+	mov	w1, #ZT_B / 4
+
+0:	str	w3, [x0], #4
+	add	w3, w3, #1		// Lane
+	subs	w1, w1, #1
+	b.ne	0b
+
+	ret
+endfunction
+
+// Set up test pattern in a ZT horizontal vector
+// x0: pid
+// x1: generation
+function setup_zt
+	mov	x4, x30
+
+	bl	pattern			// Get pattern in scratch buffer
+	ldr	x0, =ztref
+	ldr	x1, =scratch
+	mov	x2, #ZT_B
+	bl	memcpy
+
+	ldr	x0, =ztref
+	_ldr_zt 0			// load zt0 from pointer x0
+
+	ret	x4
+endfunction
+
+// Trivial memory compare: compare x2 bytes starting at address x0 with
+// bytes starting at address x1.
+// Returns only if all bytes match; otherwise, the program is aborted.
+// Clobbers x0-x5.
+function memcmp
+	cbz	x2, 2f
+
+	stp	x0, x1, [sp, #-0x20]!
+	str	x2, [sp, #0x10]
+
+	mov	x5, #0
+0:	ldrb	w3, [x0, x5]
+	ldrb	w4, [x1, x5]
+	add	x5, x5, #1
+	cmp	w3, w4
+	b.ne	1f
+	subs	x2, x2, #1
+	b.ne	0b
+
+1:	ldr	x2, [sp, #0x10]
+	ldp	x0, x1, [sp], #0x20
+	b.ne	barf
+
+2:	ret
+endfunction
+
+// Verify that a ZT vector matches its shadow in memory, else abort
+// Clobbers x0-x3
+function check_zt
+	mov	x3, x30
+
+	ldr	x0, =scratch		// Poison scratch
+	mov	x1, #ZT_B
+	bl	memfill_ae
+
+	ldr	x0, =scratch
+	_str_zt 0
+
+	ldr	x0, =ztref
+	ldr	x1, =scratch
+	mov	x2, #ZT_B
+	mov	x30, x3
+	b	memcmp
+endfunction
+
+// Modify the live SME register state, signal return will undo our changes
+function irritator_handler
+	// Increment the irritation signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	// This will reset ZT to all bits 0
+	smstop
+	smstart_za
+
+	ret
+endfunction
+
+function tickle_handler
+	// Increment the signal count (x23):
+	ldr	x0, [x2, #ucontext_regs + 8 * 23]
+	add	x0, x0, #1
+	str	x0, [x2, #ucontext_regs + 8 * 23]
+
+	ret
+endfunction
+
+function terminate_handler
+	mov	w21, w0
+	mov	x20, x2
+
+	puts	"Terminated by signal "
+	mov	w0, w21
+	bl	putdec
+	puts	", no error, iterations="
+	ldr	x0, [x20, #ucontext_regs + 8 * 22]
+	bl	putdec
+	puts	", signals="
+	ldr	x0, [x20, #ucontext_regs + 8 * 23]
+	bl	putdecn
+
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
+endfunction
+
+// w0: signal number
+// x1: sa_action
+// w2: sa_flags
+// Clobbers x0-x6,x8
+function setsignal
+	str	x30, [sp, #-((sa_sz + 15) / 16 * 16 + 16)]!
+
+	mov	w4, w0
+	mov	x5, x1
+	mov	w6, w2
+
+	add	x0, sp, #16
+	mov	x1, #sa_sz
+	bl	memclr
+
+	mov	w0, w4
+	add	x1, sp, #16
+	str	w6, [x1, #sa_flags]
+	str	x5, [x1, #sa_handler]
+	mov	x2, #0
+	mov	x3, #sa_mask_sz
+	mov	x8, #__NR_rt_sigaction
+	svc	#0
+
+	cbz	w0, 1f
+
+	puts	"sigaction failure\n"
+	b	.Labort
+
+1:	ldr	x30, [sp], #((sa_sz + 15) / 16 * 16 + 16)
+	ret
+endfunction
+
+// Main program entry point
+.globl _start
+function _start
+	enable_gcs
+
+	mov	x23, #0		// signal count
+
+	mov	w0, #SIGINT
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGTERM
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGUSR1
+	adr	x1, irritator_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	mov	w0, #SIGUSR2
+	adr	x1, tickle_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	smstart_za
+
+	// Obtain our PID, to ensure test pattern uniqueness between processes
+	mov	x8, #__NR_getpid
+	svc	#0
+	mov	x20, x0
+
+	puts	"PID:\t"
+	mov	x0, x20
+	bl	putdecn
+
+	mov	x22, #0		// generation number, increments per iteration
+.Ltest_loop:
+	mov	x0, x20
+	mov	x1, x22
+	bl	setup_zt
+
+	mov	x8, #__NR_sched_yield	// Encourage preemption
+	svc	#0
+
+	mrs	x0, S3_3_C4_C2_2	// SVCR should have ZA=1,SM=0
+	and	x1, x0, #3
+	cmp	x1, #2
+	b.ne	svcr_barf
+
+	bl	check_zt
+
+	add	x22, x22, #1	// Everything still working
+	b	.Ltest_loop
+
+.Labort:
+	mov	x0, #0
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+endfunction
+
+function barf
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// end hack
+
+	mrs	x13, S3_3_C4_C2_2
+	smstop
+	mov	x10, x0	// expected data
+	mov	x11, x1	// actual data
+	mov	x12, x2	// data size
+
+	puts	"Mismatch: PID="
+	mov	x0, x20
+	bl	putdec
+	puts	", iteration="
+	mov	x0, x22
+	bl	putdecn
+	puts	"\tExpected ["
+	mov	x0, x10
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n\tGot      ["
+	mov	x0, x11
+	mov	x1, x12
+	bl	dumphex
+	puts	"]\n"
+	puts	"\tSVCR: "
+	mov	x0, x13
+	bl	putdecn
+
+	mov	x8, #__NR_getpid
+	svc	#0
+// fpsimd.c acitivty log dump hack
+//	ldr	w0, =0xdeadc0de
+//	mov	w8, #__NR_exit
+//	svc	#0
+// ^ end of hack
+	mov	x1, #SIGABRT
+	mov	x8, #__NR_kill
+	svc	#0
+//	mov	x8, #__NR_exit
+//	mov	x1, #1
+//	svc	#0
+endfunction
+
+function svcr_barf
+	mov	x10, x0
+
+	puts	"Bad SVCR: "
+	mov	x0, x10
+	bl	putdecn
+
+	mov	x8, #__NR_exit
+	mov	x1, #1
+	svc	#0
+endfunction
diff --git a/tools/testing/selftests/arm64/gcs/.gitignore b/tools/testing/selftests/arm64/gcs/.gitignore
new file mode 100644
index 000000000000..bbb8e40a7e52
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/.gitignore
@@ -0,0 +1,7 @@
+basic-gcs
+libc-gcs
+gcs-locking
+gcs-stress
+gcs-stress-thread
+gcspushm
+gcsstr
diff --git a/tools/testing/selftests/arm64/gcs/Makefile b/tools/testing/selftests/arm64/gcs/Makefile
new file mode 100644
index 000000000000..1fbbf0ca1f02
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/Makefile
@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2023 ARM Limited
+#
+# In order to avoid interaction with the toolchain and dynamic linker the
+# portions of these tests that interact with the GCS are implemented using
+# nolibc.
+#
+
+TEST_GEN_PROGS := basic-gcs libc-gcs gcs-locking gcs-stress gcspushm gcsstr
+TEST_GEN_PROGS_EXTENDED := gcs-stress-thread
+
+LDLIBS+=-lpthread
+
+include ../../lib.mk
+
+$(OUTPUT)/basic-gcs: basic-gcs.c
+	$(CC) $(CFLAGS) -fno-asynchronous-unwind-tables -fno-ident -s -nostdlib -nostdinc \
+		-static -I../../../../include/nolibc -include ../../../../include/nolibc/nolibc.h \
+		-I../../../../../usr/include \
+		-std=gnu99 -I../.. -g \
+		-ffreestanding $^ -o $@ -lgcc
+
+$(OUTPUT)/gcs-stress-thread: gcs-stress-thread.S
+	$(CC) -nostdlib $^ -o $@
+
+$(OUTPUT)/gcspushm: gcspushm.S
+	$(CC) -nostdlib $^ -o $@
+
+$(OUTPUT)/gcsstr: gcsstr.S
+	$(CC) -nostdlib $^ -o $@
diff --git a/tools/testing/selftests/arm64/gcs/asm-offsets.h b/tools/testing/selftests/arm64/gcs/asm-offsets.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/asm-offsets.h
diff --git a/tools/testing/selftests/arm64/gcs/basic-gcs.c b/tools/testing/selftests/arm64/gcs/basic-gcs.c
new file mode 100644
index 000000000000..250977abc398
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/basic-gcs.c
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023 ARM Limited.
+ */
+
+#include <limits.h>
+#include <stdbool.h>
+
+#include <linux/prctl.h>
+
+#include <sys/mman.h>
+#include <asm/mman.h>
+#include <asm/hwcap.h>
+#include <linux/sched.h>
+
+#include "kselftest.h"
+#include "gcs-util.h"
+
+/* nolibc doesn't have sysconf(), just hard code the maximum */
+static size_t page_size = 65536;
+
+static  __attribute__((noinline)) void valid_gcs_function(void)
+{
+	/* Do something the compiler can't optimise out */
+	my_syscall1(__NR_prctl, PR_SVE_GET_VL);
+}
+
+static inline int gcs_set_status(unsigned long mode)
+{
+	bool enabling = mode & PR_SHADOW_STACK_ENABLE;
+	int ret;
+	unsigned long new_mode;
+
+	/*
+	 * The prctl takes 1 argument but we need to ensure that the
+	 * other 3 values passed in registers to the syscall are zero
+	 * since the kernel validates them.
+	 */
+	ret = my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, mode,
+			  0, 0, 0);
+
+	if (ret == 0) {
+		ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS,
+				  &new_mode, 0, 0, 0);
+		if (ret == 0) {
+			if (new_mode != mode) {
+				ksft_print_msg("Mode set to %lx not %lx\n",
+					       new_mode, mode);
+				ret = -EINVAL;
+			}
+		} else {
+			ksft_print_msg("Failed to validate mode: %d\n", ret);
+		}
+
+		if (enabling != chkfeat_gcs()) {
+			ksft_print_msg("%senabled by prctl but %senabled in CHKFEAT\n",
+				       enabling ? "" : "not ",
+				       chkfeat_gcs() ? "" : "not ");
+			ret = -EINVAL;
+		}
+	}
+
+	return ret;
+}
+
+/* Try to read the status */
+static bool read_status(void)
+{
+	unsigned long state;
+	int ret;
+
+	ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS,
+			  &state, 0, 0, 0);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read state: %d\n", ret);
+		return false;
+	}
+
+	return state & PR_SHADOW_STACK_ENABLE;
+}
+
+/* Just a straight enable */
+static bool base_enable(void)
+{
+	int ret;
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE);
+	if (ret) {
+		ksft_print_msg("PR_SHADOW_STACK_ENABLE failed %d\n", ret);
+		return false;
+	}
+
+	return true;
+}
+
+/* Check we can read GCSPR_EL0 when GCS is enabled */
+static bool read_gcspr_el0(void)
+{
+	unsigned long *gcspr_el0;
+
+	ksft_print_msg("GET GCSPR\n");
+	gcspr_el0 = get_gcspr();
+	ksft_print_msg("GCSPR_EL0 is %p\n", gcspr_el0);
+
+	return true;
+}
+
+/* Also allow writes to stack */
+static bool enable_writeable(void)
+{
+	int ret;
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_WRITE);
+	if (ret) {
+		ksft_print_msg("PR_SHADOW_STACK_ENABLE writeable failed: %d\n", ret);
+		return false;
+	}
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE);
+	if (ret) {
+		ksft_print_msg("failed to restore plain enable %d\n", ret);
+		return false;
+	}
+
+	return true;
+}
+
+/* Also allow writes to stack */
+static bool enable_push_pop(void)
+{
+	int ret;
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_PUSH);
+	if (ret) {
+		ksft_print_msg("PR_SHADOW_STACK_ENABLE with push failed: %d\n",
+			       ret);
+		return false;
+	}
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE);
+	if (ret) {
+		ksft_print_msg("failed to restore plain enable %d\n", ret);
+		return false;
+	}
+
+	return true;
+}
+
+/* Enable GCS and allow everything */
+static bool enable_all(void)
+{
+	int ret;
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_PUSH |
+			     PR_SHADOW_STACK_WRITE);
+	if (ret) {
+		ksft_print_msg("PR_SHADOW_STACK_ENABLE with everything failed: %d\n",
+			       ret);
+		return false;
+	}
+
+	ret = gcs_set_status(PR_SHADOW_STACK_ENABLE);
+	if (ret) {
+		ksft_print_msg("failed to restore plain enable %d\n", ret);
+		return false;
+	}
+
+	return true;
+}
+
+static bool enable_invalid(void)
+{
+	int ret = gcs_set_status(ULONG_MAX);
+	if (ret == 0) {
+		ksft_print_msg("GCS_SET_STATUS %lx succeeded\n", ULONG_MAX);
+		return false;
+	}
+
+	return true;
+}
+
+/* Map a GCS */
+static bool map_guarded_stack(void)
+{
+	int ret;
+	uint64_t *buf;
+	uint64_t expected_cap;
+	int elem;
+	bool pass = true;
+
+	buf = (void *)my_syscall3(__NR_map_shadow_stack, 0, page_size,
+				  SHADOW_STACK_SET_MARKER |
+				  SHADOW_STACK_SET_TOKEN);
+	if (buf == MAP_FAILED) {
+		ksft_print_msg("Failed to map %lu byte GCS: %d\n",
+			       page_size, errno);
+		return false;
+	}
+	ksft_print_msg("Mapped GCS at %p-%p\n", buf,
+		       (void *)((uint64_t)buf + page_size));
+
+	/* The top of the newly allocated region should be 0 */
+	elem = (page_size / sizeof(uint64_t)) - 1;
+	if (buf[elem]) {
+		ksft_print_msg("Last entry is 0x%llx not 0x0\n", buf[elem]);
+		pass = false;
+	}
+
+	/* Then a valid cap token */
+	elem--;
+	expected_cap = ((uint64_t)buf + page_size - 16);
+	expected_cap &= GCS_CAP_ADDR_MASK;
+	expected_cap |= GCS_CAP_VALID_TOKEN;
+	if (buf[elem] != expected_cap) {
+		ksft_print_msg("Cap entry is 0x%llx not 0x%llx\n",
+			       buf[elem], expected_cap);
+		pass = false;
+	}
+	ksft_print_msg("cap token is 0x%llx\n", buf[elem]);
+
+	/* The rest should be zeros */
+	for (elem = 0; elem < page_size / sizeof(uint64_t) - 2; elem++) {
+		if (!buf[elem])
+			continue;
+		ksft_print_msg("GCS slot %d is 0x%llx not 0x0\n",
+			       elem, buf[elem]);
+		pass = false;
+	}
+
+	ret = munmap(buf, page_size);
+	if (ret != 0) {
+		ksft_print_msg("Failed to unmap %ld byte GCS: %d\n",
+			       page_size, errno);
+		pass = false;
+	}
+
+	return pass;
+}
+
+/* A fork()ed process can run */
+static bool test_fork(void)
+{
+	unsigned long child_mode;
+	int ret, status;
+	pid_t pid;
+	bool pass = true;
+
+	pid = fork();
+	if (pid == -1) {
+		ksft_print_msg("fork() failed: %d\n", errno);
+		pass = false;
+		goto out;
+	}
+	if (pid == 0) {
+		/* In child, make sure we can call a function, read
+		 * the GCS pointer and status and then exit */
+		valid_gcs_function();
+		get_gcspr();
+
+		ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS,
+				  &child_mode, 0, 0, 0);
+		if (ret == 0 && !(child_mode & PR_SHADOW_STACK_ENABLE)) {
+			ksft_print_msg("GCS not enabled in child\n");
+			ret = -EINVAL;
+		}
+
+		exit(ret);
+	}
+
+	/*
+	 * In parent, check we can still do function calls then block
+	 * for the child.
+	 */
+	valid_gcs_function();
+
+	ksft_print_msg("Waiting for child %d\n", pid);
+
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		ksft_print_msg("Failed to wait for child: %d\n",
+			       errno);
+		return false;
+	}
+
+	if (!WIFEXITED(status)) {
+		ksft_print_msg("Child exited due to signal %d\n",
+			       WTERMSIG(status));
+		pass = false;
+	} else {
+		if (WEXITSTATUS(status)) {
+			ksft_print_msg("Child exited with status %d\n",
+				       WEXITSTATUS(status));
+			pass = false;
+		}
+	}
+
+out:
+
+	return pass;
+}
+
+/* A vfork()ed process can run and exit */
+static bool test_vfork(void)
+{
+	unsigned long child_mode;
+	int ret, status;
+	pid_t pid;
+	bool pass = true;
+
+	pid = vfork();
+	if (pid == -1) {
+		ksft_print_msg("vfork() failed: %d\n", errno);
+		pass = false;
+		goto out;
+	}
+	if (pid == 0) {
+		/*
+		 * In child, make sure we can call a function, read
+		 * the GCS pointer and status and then exit.
+		 */
+		valid_gcs_function();
+		get_gcspr();
+
+		ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS,
+				  &child_mode, 0, 0, 0);
+		if (ret == 0 && !(child_mode & PR_SHADOW_STACK_ENABLE)) {
+			ksft_print_msg("GCS not enabled in child\n");
+			ret = EXIT_FAILURE;
+		}
+
+		_exit(ret);
+	}
+
+	/*
+	 * In parent, check we can still do function calls then check
+	 * on the child.
+	 */
+	valid_gcs_function();
+
+	ksft_print_msg("Waiting for child %d\n", pid);
+
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		ksft_print_msg("Failed to wait for child: %d\n",
+			       errno);
+		return false;
+	}
+
+	if (!WIFEXITED(status)) {
+		ksft_print_msg("Child exited due to signal %d\n",
+			       WTERMSIG(status));
+		pass = false;
+	} else if (WEXITSTATUS(status)) {
+		ksft_print_msg("Child exited with status %d\n",
+			       WEXITSTATUS(status));
+		pass = false;
+	}
+
+out:
+
+	return pass;
+}
+
+typedef bool (*gcs_test)(void);
+
+static struct {
+	char *name;
+	gcs_test test;
+	bool needs_enable;
+} tests[] = {
+	{ "read_status", read_status },
+	{ "base_enable", base_enable, true },
+	{ "read_gcspr_el0", read_gcspr_el0 },
+	{ "enable_writeable", enable_writeable, true },
+	{ "enable_push_pop", enable_push_pop, true },
+	{ "enable_all", enable_all, true },
+	{ "enable_invalid", enable_invalid, true },
+	{ "map_guarded_stack", map_guarded_stack },
+	{ "fork", test_fork },
+	{ "vfork", test_vfork },
+};
+
+int main(void)
+{
+	int i, ret;
+	unsigned long gcs_mode;
+
+	ksft_print_header();
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_GCS))
+		ksft_exit_skip("SKIP GCS not supported\n");
+
+	ret = my_syscall5(__NR_prctl, PR_GET_SHADOW_STACK_STATUS,
+			  &gcs_mode, 0, 0, 0);
+	if (ret != 0)
+		ksft_exit_fail_msg("Failed to read GCS state: %d\n", ret);
+
+	if (!(gcs_mode & PR_SHADOW_STACK_ENABLE)) {
+		gcs_mode = PR_SHADOW_STACK_ENABLE;
+		ret = my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+				  gcs_mode, 0, 0, 0);
+		if (ret != 0)
+			ksft_exit_fail_msg("Failed to enable GCS: %d\n", ret);
+	}
+
+	ksft_set_plan(ARRAY_SIZE(tests));
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		ksft_test_result((*tests[i].test)(), "%s\n", tests[i].name);
+	}
+
+	/* One last test: disable GCS, we can do this one time */
+	ret = my_syscall5(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0, 0, 0, 0);
+	if (ret != 0)
+		ksft_print_msg("Failed to disable GCS: %d\n", ret);
+
+	ksft_finished();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/gcs/gcs-locking.c b/tools/testing/selftests/arm64/gcs/gcs-locking.c
new file mode 100644
index 000000000000..1e6abb136ffd
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcs-locking.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023 ARM Limited.
+ *
+ * Tests for GCS mode locking.  These tests rely on both having GCS
+ * unconfigured on entry and on the kselftest harness running each
+ * test in a fork()ed process which will have it's own mode.
+ */
+
+#include <limits.h>
+
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+
+#include <asm/hwcap.h>
+
+#include "kselftest_harness.h"
+
+#include "gcs-util.h"
+
+#define my_syscall2(num, arg1, arg2)                                          \
+({                                                                            \
+	register long _num  __asm__ ("x8") = (num);                           \
+	register long _arg1 __asm__ ("x0") = (long)(arg1);                    \
+	register long _arg2 __asm__ ("x1") = (long)(arg2);                    \
+	register long _arg3 __asm__ ("x2") = 0;                               \
+	register long _arg4 __asm__ ("x3") = 0;                               \
+	register long _arg5 __asm__ ("x4") = 0;                               \
+	                                                                      \
+	__asm__  volatile (                                                   \
+		"svc #0\n"                                                    \
+		: "=r"(_arg1)                                                 \
+		: "r"(_arg1), "r"(_arg2),                                     \
+		  "r"(_arg3), "r"(_arg4),                                     \
+		  "r"(_arg5), "r"(_num)					      \
+		: "memory", "cc"                                              \
+	);                                                                    \
+	_arg1;                                                                \
+})
+
+/* No mode bits are rejected for locking */
+TEST(lock_all_modes)
+{
+	int ret;
+
+	ret = prctl(PR_LOCK_SHADOW_STACK_STATUS, ULONG_MAX, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+}
+
+FIXTURE(valid_modes)
+{
+};
+
+FIXTURE_VARIANT(valid_modes)
+{
+	unsigned long mode;
+};
+
+FIXTURE_VARIANT_ADD(valid_modes, enable)
+{
+	.mode = PR_SHADOW_STACK_ENABLE,
+};
+
+FIXTURE_VARIANT_ADD(valid_modes, enable_write)
+{
+	.mode = PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_WRITE,
+};
+
+FIXTURE_VARIANT_ADD(valid_modes, enable_push)
+{
+	.mode = PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_PUSH,
+};
+
+FIXTURE_VARIANT_ADD(valid_modes, enable_write_push)
+{
+	.mode = PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_WRITE |
+		PR_SHADOW_STACK_PUSH,
+};
+
+FIXTURE_SETUP(valid_modes)
+{
+}
+
+FIXTURE_TEARDOWN(valid_modes)
+{
+}
+
+/* We can set the mode at all */
+TEST_F(valid_modes, set)
+{
+	int ret;
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  variant->mode);
+	ASSERT_EQ(ret, 0);
+
+	_exit(0);
+}
+
+/* Enabling, locking then disabling is rejected */
+TEST_F(valid_modes, enable_lock_disable)
+{
+	unsigned long mode;
+	int ret;
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  variant->mode);
+	ASSERT_EQ(ret, 0);
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mode, variant->mode);
+
+	ret = prctl(PR_LOCK_SHADOW_STACK_STATUS, variant->mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS, 0);
+	ASSERT_EQ(ret, -EBUSY);
+
+	_exit(0);
+}
+
+/* Locking then enabling is rejected */
+TEST_F(valid_modes, lock_enable)
+{
+	unsigned long mode;
+	int ret;
+
+	ret = prctl(PR_LOCK_SHADOW_STACK_STATUS, variant->mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  variant->mode);
+	ASSERT_EQ(ret, -EBUSY);
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mode, 0);
+
+	_exit(0);
+}
+
+/* Locking then changing other modes is fine */
+TEST_F(valid_modes, lock_enable_disable_others)
+{
+	unsigned long mode;
+	int ret;
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  variant->mode);
+	ASSERT_EQ(ret, 0);
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mode, variant->mode);
+
+	ret = prctl(PR_LOCK_SHADOW_STACK_STATUS, variant->mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  PR_SHADOW_STACK_ALL_MODES);
+	ASSERT_EQ(ret, 0);
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mode, PR_SHADOW_STACK_ALL_MODES);
+
+	ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+			  variant->mode);
+	ASSERT_EQ(ret, 0);
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mode, variant->mode);
+
+	_exit(0);
+}
+
+int main(int argc, char **argv)
+{
+	unsigned long mode;
+	int ret;
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_GCS))
+		ksft_exit_skip("SKIP GCS not supported\n");
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	if (ret) {
+		ksft_print_msg("Failed to read GCS state: %d\n", ret);
+		return EXIT_FAILURE;
+	}
+
+	if (mode & PR_SHADOW_STACK_ENABLE) {
+		ksft_print_msg("GCS was enabled, test unsupported\n");
+		return KSFT_SKIP;
+	}
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/arm64/gcs/gcs-stress-thread.S b/tools/testing/selftests/arm64/gcs/gcs-stress-thread.S
new file mode 100644
index 000000000000..b88b25217da5
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcs-stress-thread.S
@@ -0,0 +1,311 @@
+// Program that loops for ever doing lots of recursions and system calls,
+// intended to be used as part of a stress test for GCS context switching.
+//
+// Copyright 2015-2023 Arm Ltd
+
+#include <asm/unistd.h>
+
+#define sa_sz 32
+#define sa_flags 8
+#define sa_handler 0
+#define sa_mask_sz 8
+
+#define si_code 8
+
+#define SIGINT 2
+#define SIGABRT 6
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGTERM 15
+#define SEGV_CPERR 10
+
+#define SA_NODEFER 1073741824
+#define SA_SIGINFO 4
+#define ucontext_regs 184
+
+#define PR_SET_SHADOW_STACK_STATUS      75
+# define PR_SHADOW_STACK_ENABLE         (1UL << 0)
+
+#define	GCSPR_EL0 S3_3_C2_C5_1
+
+.macro function name
+	.macro endfunction
+		.type \name, @function
+		.purgem endfunction
+	.endm
+\name:
+.endm
+
+// Print a single character x0 to stdout
+// Clobbers x0-x2,x8
+function putc
+	str	x0, [sp, #-16]!
+
+	mov	x0, #1			// STDOUT_FILENO
+	mov	x1, sp
+	mov	x2, #1
+	mov	x8, #__NR_write
+	svc	#0
+
+	add	sp, sp, #16
+	ret
+endfunction
+.globl	putc
+
+// Print a NUL-terminated string starting at address x0 to stdout
+// Clobbers x0-x3,x8
+function puts
+	mov	x1, x0
+
+	mov	x2, #0
+0:	ldrb	w3, [x0], #1
+	cbz	w3, 1f
+	add	x2, x2, #1
+	b	0b
+
+1:	mov	w0, #1			// STDOUT_FILENO
+	mov	x8, #__NR_write
+	svc	#0
+
+	ret
+endfunction
+.globl	puts
+
+// Utility macro to print a literal string
+// Clobbers x0-x4,x8
+.macro puts string
+	.pushsection .rodata.str1.1, "aMS", @progbits, 1
+.L__puts_literal\@: .string "\string"
+	.popsection
+
+	ldr	x0, =.L__puts_literal\@
+	bl	puts
+.endm
+
+// Print an unsigned decimal number x0 to stdout
+// Clobbers x0-x4,x8
+function putdec
+	mov	x1, sp
+	str	x30, [sp, #-32]!	// Result can't be > 20 digits
+
+	mov	x2, #0
+	strb	w2, [x1, #-1]!		// Write the NUL terminator
+
+	mov	x2, #10
+0:	udiv	x3, x0, x2		// div-mod loop to generate the digits
+	msub	x0, x3, x2, x0
+	add	w0, w0, #'0'
+	strb	w0, [x1, #-1]!
+	mov	x0, x3
+	cbnz	x3, 0b
+
+	ldrb	w0, [x1]
+	cbnz	w0, 1f
+	mov	w0, #'0'		// Print "0" for 0, not ""
+	strb	w0, [x1, #-1]!
+
+1:	mov	x0, x1
+	bl	puts
+
+	ldr	x30, [sp], #32
+	ret
+endfunction
+.globl	putdec
+
+// Print an unsigned decimal number x0 to stdout, followed by a newline
+// Clobbers x0-x5,x8
+function putdecn
+	mov	x5, x30
+
+	bl	putdec
+	mov	x0, #'\n'
+	bl	putc
+
+	ret	x5
+endfunction
+.globl	putdecn
+
+// Fill x1 bytes starting at x0 with 0.
+// Clobbers x1, x2.
+function memclr
+	mov	w2, #0
+endfunction
+.globl	memclr
+	// fall through to memfill
+
+// Trivial memory fill: fill x1 bytes starting at address x0 with byte w2
+// Clobbers x1
+function memfill
+	cmp	x1, #0
+	b.eq	1f
+
+0:	strb	w2, [x0], #1
+	subs	x1, x1, #1
+	b.ne	0b
+
+1:	ret
+endfunction
+.globl	memfill
+
+// w0: signal number
+// x1: sa_action
+// w2: sa_flags
+// Clobbers x0-x6,x8
+function setsignal
+	str	x30, [sp, #-((sa_sz + 15) / 16 * 16 + 16)]!
+
+	mov	w4, w0
+	mov	x5, x1
+	mov	w6, w2
+
+	add	x0, sp, #16
+	mov	x1, #sa_sz
+	bl	memclr
+
+	mov	w0, w4
+	add	x1, sp, #16
+	str	w6, [x1, #sa_flags]
+	str	x5, [x1, #sa_handler]
+	mov	x2, #0
+	mov	x3, #sa_mask_sz
+	mov	x8, #__NR_rt_sigaction
+	svc	#0
+
+	cbz	w0, 1f
+
+	puts	"sigaction failure\n"
+	b	abort
+
+1:	ldr	x30, [sp], #((sa_sz + 15) / 16 * 16 + 16)
+	ret
+endfunction
+
+
+function tickle_handler
+	// Perhaps collect GCSPR_EL0 here in future?
+	ret
+endfunction
+
+function terminate_handler
+	mov	w21, w0
+	mov	x20, x2
+
+	puts	"Terminated by signal "
+	mov	w0, w21
+	bl	putdec
+	puts	", no error\n"
+
+	mov	x0, #0
+	mov	x8, #__NR_exit
+	svc	#0
+endfunction
+
+function segv_handler
+	// stash the siginfo_t *
+	mov	x20, x1
+
+	// Disable GCS, we don't want additional faults logging things
+	mov	x0, PR_SET_SHADOW_STACK_STATUS
+	mov	x1, xzr
+	mov	x2, xzr
+	mov	x3, xzr
+	mov	x4, xzr
+	mov	x5, xzr
+	mov	x8, #__NR_prctl
+	svc	#0
+
+	puts	"Got SIGSEGV code "
+
+	ldr	x21, [x20, #si_code]
+	mov	x0, x21
+	bl	putdec
+
+	// GCS faults should have si_code SEGV_CPERR
+	cmp	x21, #SEGV_CPERR
+	bne	1f
+
+	puts	" (GCS violation)"
+1:
+	mov	x0, '\n'
+	bl	putc
+	b	abort
+endfunction
+
+// Recurse x20 times
+.macro recurse id
+function recurse\id
+	stp	x29, x30, [sp, #-16]!
+	mov	x29, sp
+
+	cmp	x20, 0
+	beq	1f
+	sub	x20, x20, 1
+	bl	recurse\id
+
+1:
+	ldp	x29, x30, [sp], #16
+
+	// Do a syscall immediately prior to returning to try to provoke
+	// scheduling and migration at a point where coherency issues
+	// might trigger.
+	mov	x8, #__NR_getpid
+	svc	#0
+
+	ret
+endfunction
+.endm
+
+// Generate and use two copies so we're changing the GCS contents
+recurse 1
+recurse 2
+
+.globl _start
+function _start
+	// Run with GCS
+	mov	x0, PR_SET_SHADOW_STACK_STATUS
+	mov	x1, PR_SHADOW_STACK_ENABLE
+	mov	x2, xzr
+	mov	x3, xzr
+	mov	x4, xzr
+	mov	x5, xzr
+	mov	x8, #__NR_prctl
+	svc	#0
+	cbz	x0, 1f
+	puts	"Failed to enable GCS\n"
+	b	abort
+1:
+
+	mov	w0, #SIGTERM
+	adr	x1, terminate_handler
+	mov	w2, #SA_SIGINFO
+	bl	setsignal
+
+	mov	w0, #SIGUSR1
+	adr	x1, tickle_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	mov	w0, #SIGSEGV
+	adr	x1, segv_handler
+	mov	w2, #SA_SIGINFO
+	orr	w2, w2, #SA_NODEFER
+	bl	setsignal
+
+	puts	"Running\n"
+
+loop:
+	// Small recursion depth so we're frequently flipping between
+	// the two recursors and changing what's on the stack
+	mov	x20, #5
+	bl	recurse1
+	mov	x20, #5
+	bl	recurse2
+	b	loop
+endfunction
+
+abort:
+	mov	x0, #255
+	mov	x8, #__NR_exit
+	svc	#0
diff --git a/tools/testing/selftests/arm64/gcs/gcs-stress.c b/tools/testing/selftests/arm64/gcs/gcs-stress.c
new file mode 100644
index 000000000000..86d8cd42aee7
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcs-stress.c
@@ -0,0 +1,530 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022-3 ARM Limited.
+ */
+
+#define _GNU_SOURCE
+#define _POSIX_C_SOURCE 199309L
+
+#include <errno.h>
+#include <getopt.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/epoll.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include <asm/hwcap.h>
+
+#include "kselftest.h"
+
+struct child_data {
+	char *name, *output;
+	pid_t pid;
+	int stdout;
+	bool output_seen;
+	bool exited;
+	int exit_status;
+	int exit_signal;
+};
+
+static int epoll_fd;
+static struct child_data *children;
+static struct epoll_event *evs;
+static int tests;
+static int num_children;
+static bool terminate;
+
+static int startup_pipe[2];
+
+static int num_processors(void)
+{
+	long nproc = sysconf(_SC_NPROCESSORS_CONF);
+	if (nproc < 0) {
+		perror("Unable to read number of processors\n");
+		exit(EXIT_FAILURE);
+	}
+
+	return nproc;
+}
+
+static void start_thread(struct child_data *child, int id)
+{
+	int ret, pipefd[2], i;
+	struct epoll_event ev;
+
+	ret = pipe(pipefd);
+	if (ret != 0)
+		ksft_exit_fail_msg("Failed to create stdout pipe: %s (%d)\n",
+				   strerror(errno), errno);
+
+	child->pid = fork();
+	if (child->pid == -1)
+		ksft_exit_fail_msg("fork() failed: %s (%d)\n",
+				   strerror(errno), errno);
+
+	if (!child->pid) {
+		/*
+		 * In child, replace stdout with the pipe, errors to
+		 * stderr from here as kselftest prints to stdout.
+		 */
+		ret = dup2(pipefd[1], 1);
+		if (ret == -1) {
+			fprintf(stderr, "dup2() %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+
+		/*
+		 * Duplicate the read side of the startup pipe to
+		 * FD 3 so we can close everything else.
+		 */
+		ret = dup2(startup_pipe[0], 3);
+		if (ret == -1) {
+			fprintf(stderr, "dup2() %d\n", errno);
+			exit(EXIT_FAILURE);
+		}
+
+		/*
+		 * Very dumb mechanism to clean open FDs other than
+		 * stdio. We don't want O_CLOEXEC for the pipes...
+		 */
+		for (i = 4; i < 8192; i++)
+			close(i);
+
+		/*
+		 * Read from the startup pipe, there should be no data
+		 * and we should block until it is closed.  We just
+		 * carry on on error since this isn't super critical.
+		 */
+		ret = read(3, &i, sizeof(i));
+		if (ret < 0)
+			fprintf(stderr, "read(startp pipe) failed: %s (%d)\n",
+				strerror(errno), errno);
+		if (ret > 0)
+			fprintf(stderr, "%d bytes of data on startup pipe\n",
+				ret);
+		close(3);
+
+		ret = execl("gcs-stress-thread", "gcs-stress-thread", NULL);
+		fprintf(stderr, "execl(gcs-stress-thread) failed: %d (%s)\n",
+			errno, strerror(errno));
+
+		exit(EXIT_FAILURE);
+	} else {
+		/*
+		 * In parent, remember the child and close our copy of the
+		 * write side of stdout.
+		 */
+		close(pipefd[1]);
+		child->stdout = pipefd[0];
+		child->output = NULL;
+		child->exited = false;
+		child->output_seen = false;
+
+		ev.events = EPOLLIN | EPOLLHUP;
+		ev.data.ptr = child;
+
+		ret = asprintf(&child->name, "Thread-%d", id);
+		if (ret == -1)
+			ksft_exit_fail_msg("asprintf() failed\n");
+
+		ret = epoll_ctl(epoll_fd, EPOLL_CTL_ADD, child->stdout, &ev);
+		if (ret < 0) {
+			ksft_exit_fail_msg("%s EPOLL_CTL_ADD failed: %s (%d)\n",
+					   child->name, strerror(errno), errno);
+		}
+	}
+
+	ksft_print_msg("Started %s\n", child->name);
+	num_children++;
+}
+
+static bool child_output_read(struct child_data *child)
+{
+	char read_data[1024];
+	char work[1024];
+	int ret, len, cur_work, cur_read;
+
+	ret = read(child->stdout, read_data, sizeof(read_data));
+	if (ret < 0) {
+		if (errno == EINTR)
+			return true;
+
+		ksft_print_msg("%s: read() failed: %s (%d)\n",
+			       child->name, strerror(errno),
+			       errno);
+		return false;
+	}
+	len = ret;
+
+	child->output_seen = true;
+
+	/* Pick up any partial read */
+	if (child->output) {
+		strncpy(work, child->output, sizeof(work) - 1);
+		cur_work = strnlen(work, sizeof(work));
+		free(child->output);
+		child->output = NULL;
+	} else {
+		cur_work = 0;
+	}
+
+	cur_read = 0;
+	while (cur_read < len) {
+		work[cur_work] = read_data[cur_read++];
+
+		if (work[cur_work] == '\n') {
+			work[cur_work] = '\0';
+			ksft_print_msg("%s: %s\n", child->name, work);
+			cur_work = 0;
+		} else {
+			cur_work++;
+		}
+	}
+
+	if (cur_work) {
+		work[cur_work] = '\0';
+		ret = asprintf(&child->output, "%s", work);
+		if (ret == -1)
+			ksft_exit_fail_msg("Out of memory\n");
+	}
+
+	return false;
+}
+
+static void child_output(struct child_data *child, uint32_t events,
+			 bool flush)
+{
+	bool read_more;
+
+	if (events & EPOLLIN) {
+		do {
+			read_more = child_output_read(child);
+		} while (read_more);
+	}
+
+	if (events & EPOLLHUP) {
+		close(child->stdout);
+		child->stdout = -1;
+		flush = true;
+	}
+
+	if (flush && child->output) {
+		ksft_print_msg("%s: %s<EOF>\n", child->name, child->output);
+		free(child->output);
+		child->output = NULL;
+	}
+}
+
+static void child_tickle(struct child_data *child)
+{
+	if (child->output_seen && !child->exited)
+		kill(child->pid, SIGUSR1);
+}
+
+static void child_stop(struct child_data *child)
+{
+	if (!child->exited)
+		kill(child->pid, SIGTERM);
+}
+
+static void child_cleanup(struct child_data *child)
+{
+	pid_t ret;
+	int status;
+	bool fail = false;
+
+	if (!child->exited) {
+		do {
+			ret = waitpid(child->pid, &status, 0);
+			if (ret == -1 && errno == EINTR)
+				continue;
+
+			if (ret == -1) {
+				ksft_print_msg("waitpid(%d) failed: %s (%d)\n",
+					       child->pid, strerror(errno),
+					       errno);
+				fail = true;
+				break;
+			}
+
+			if (WIFEXITED(status)) {
+				child->exit_status = WEXITSTATUS(status);
+				child->exited = true;
+			}
+
+			if (WIFSIGNALED(status)) {
+				child->exit_signal = WTERMSIG(status);
+				ksft_print_msg("%s: Exited due to signal %d\n",
+					       child->name, child->exit_signal);
+				fail = true;
+				child->exited = true;
+			}
+		} while (!child->exited);
+	}
+
+	if (!child->output_seen) {
+		ksft_print_msg("%s no output seen\n", child->name);
+		fail = true;
+	}
+
+	if (child->exit_status != 0) {
+		ksft_print_msg("%s exited with error code %d\n",
+			       child->name, child->exit_status);
+		fail = true;
+	}
+
+	ksft_test_result(!fail, "%s\n", child->name);
+}
+
+static void handle_child_signal(int sig, siginfo_t *info, void *context)
+{
+	int i;
+	bool found = false;
+
+	for (i = 0; i < num_children; i++) {
+		if (children[i].pid == info->si_pid) {
+			children[i].exited = true;
+			children[i].exit_status = info->si_status;
+			found = true;
+			break;
+		}
+	}
+
+	if (!found)
+		ksft_print_msg("SIGCHLD for unknown PID %d with status %d\n",
+			       info->si_pid, info->si_status);
+}
+
+static void handle_exit_signal(int sig, siginfo_t *info, void *context)
+{
+	int i;
+
+	/* If we're already exiting then don't signal again */
+	if (terminate)
+		return;
+
+	ksft_print_msg("Got signal, exiting...\n");
+
+	terminate = true;
+
+	/*
+	 * This should be redundant, the main loop should clean up
+	 * after us, but for safety stop everything we can here.
+	 */
+	for (i = 0; i < num_children; i++)
+		child_stop(&children[i]);
+}
+
+/* Handle any pending output without blocking */
+static void drain_output(bool flush)
+{
+	int ret = 1;
+	int i;
+
+	while (ret > 0) {
+		ret = epoll_wait(epoll_fd, evs, tests, 0);
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_print_msg("epoll_wait() failed: %s (%d)\n",
+				       strerror(errno), errno);
+		}
+
+		for (i = 0; i < ret; i++)
+			child_output(evs[i].data.ptr, evs[i].events, flush);
+	}
+}
+
+static const struct option options[] = {
+	{ "timeout",	required_argument, NULL, 't' },
+	{ }
+};
+
+int main(int argc, char **argv)
+{
+	int seen_children;
+	bool all_children_started = false;
+	int gcs_threads;
+	int timeout = 10;
+	int ret, cpus, i, c;
+	struct sigaction sa;
+
+	while ((c = getopt_long(argc, argv, "t:", options, NULL)) != -1) {
+		switch (c) {
+		case 't':
+			ret = sscanf(optarg, "%d", &timeout);
+			if (ret != 1)
+				ksft_exit_fail_msg("Failed to parse timeout %s\n",
+						   optarg);
+			break;
+		default:
+			ksft_exit_fail_msg("Unknown argument\n");
+		}
+	}
+
+	cpus = num_processors();
+	tests = 0;
+
+	if (getauxval(AT_HWCAP) & HWCAP_GCS) {
+		/* One extra thread, trying to trigger migrations */
+		gcs_threads = cpus + 1;
+		tests += gcs_threads;
+	} else {
+		gcs_threads = 0;
+	}
+
+	ksft_print_header();
+	ksft_set_plan(tests);
+
+	ksft_print_msg("%d CPUs, %d GCS threads\n",
+		       cpus, gcs_threads);
+
+	if (!tests)
+		ksft_exit_skip("No tests scheduled\n");
+
+	if (timeout > 0)
+		ksft_print_msg("Will run for %ds\n", timeout);
+	else
+		ksft_print_msg("Will run until terminated\n");
+
+	children = calloc(sizeof(*children), tests);
+	if (!children)
+		ksft_exit_fail_msg("Unable to allocate child data\n");
+
+	ret = epoll_create1(EPOLL_CLOEXEC);
+	if (ret < 0)
+		ksft_exit_fail_msg("epoll_create1() failed: %s (%d)\n",
+				   strerror(errno), ret);
+	epoll_fd = ret;
+
+	/* Create a pipe which children will block on before execing */
+	ret = pipe(startup_pipe);
+	if (ret != 0)
+		ksft_exit_fail_msg("Failed to create startup pipe: %s (%d)\n",
+				   strerror(errno), errno);
+
+	/* Get signal handers ready before we start any children */
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_sigaction = handle_exit_signal;
+	sa.sa_flags = SA_RESTART | SA_SIGINFO;
+	sigemptyset(&sa.sa_mask);
+	ret = sigaction(SIGINT, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGINT handler: %s (%d)\n",
+			       strerror(errno), errno);
+	ret = sigaction(SIGTERM, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGTERM handler: %s (%d)\n",
+			       strerror(errno), errno);
+	sa.sa_sigaction = handle_child_signal;
+	ret = sigaction(SIGCHLD, &sa, NULL);
+	if (ret < 0)
+		ksft_print_msg("Failed to install SIGCHLD handler: %s (%d)\n",
+			       strerror(errno), errno);
+
+	evs = calloc(tests, sizeof(*evs));
+	if (!evs)
+		ksft_exit_fail_msg("Failed to allocate %d epoll events\n",
+				   tests);
+
+	for (i = 0; i < gcs_threads; i++)
+		start_thread(&children[i], i);
+
+	/*
+	 * All children started, close the startup pipe and let them
+	 * run.
+	 */
+	close(startup_pipe[0]);
+	close(startup_pipe[1]);
+
+	timeout *= 10;
+	for (;;) {
+		/* Did we get a signal asking us to exit? */
+		if (terminate)
+			break;
+
+		/*
+		 * Timeout is counted in 100ms with no output, the
+		 * tests print during startup then are silent when
+		 * running so this should ensure they all ran enough
+		 * to install the signal handler, this is especially
+		 * useful in emulation where we will both be slow and
+		 * likely to have a large set of VLs.
+		 */
+		ret = epoll_wait(epoll_fd, evs, tests, 100);
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			ksft_exit_fail_msg("epoll_wait() failed: %s (%d)\n",
+					   strerror(errno), errno);
+		}
+
+		/* Output? */
+		if (ret > 0) {
+			for (i = 0; i < ret; i++) {
+				child_output(evs[i].data.ptr, evs[i].events,
+					     false);
+			}
+			continue;
+		}
+
+		/* Otherwise epoll_wait() timed out */
+
+		/*
+		 * If the child processes have not produced output they
+		 * aren't actually running the tests yet.
+		 */
+		if (!all_children_started) {
+			seen_children = 0;
+
+			for (i = 0; i < num_children; i++)
+				if (children[i].output_seen ||
+				    children[i].exited)
+					seen_children++;
+
+			if (seen_children != num_children) {
+				ksft_print_msg("Waiting for %d children\n",
+					       num_children - seen_children);
+				continue;
+			}
+
+			all_children_started = true;
+		}
+
+		ksft_print_msg("Sending signals, timeout remaining: %d00ms\n",
+			       timeout);
+
+		for (i = 0; i < num_children; i++)
+			child_tickle(&children[i]);
+
+		/* Negative timeout means run indefinitely */
+		if (timeout < 0)
+			continue;
+		if (--timeout == 0)
+			break;
+	}
+
+	ksft_print_msg("Finishing up...\n");
+	terminate = true;
+
+	for (i = 0; i < tests; i++)
+		child_stop(&children[i]);
+
+	drain_output(false);
+
+	for (i = 0; i < tests; i++)
+		child_cleanup(&children[i]);
+
+	drain_output(true);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/arm64/gcs/gcs-util.h b/tools/testing/selftests/arm64/gcs/gcs-util.h
new file mode 100644
index 000000000000..c99a6b39ac14
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcs-util.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2023 ARM Limited.
+ */
+
+#ifndef GCS_UTIL_H
+#define GCS_UTIL_H
+
+#include <stdbool.h>
+
+#ifndef __NR_map_shadow_stack
+#define __NR_map_shadow_stack 453
+#endif
+
+#ifndef __NR_prctl
+#define __NR_prctl 167
+#endif
+
+#ifndef NT_ARM_GCS
+#define NT_ARM_GCS 0x410
+
+struct user_gcs {
+	__u64 features_enabled;
+	__u64 features_locked;
+	__u64 gcspr_el0;
+};
+#endif
+
+/* Shadow Stack/Guarded Control Stack interface */
+#define PR_GET_SHADOW_STACK_STATUS	74
+#define PR_SET_SHADOW_STACK_STATUS      75
+#define PR_LOCK_SHADOW_STACK_STATUS     76
+
+# define PR_SHADOW_STACK_ENABLE         (1UL << 0)
+# define PR_SHADOW_STACK_WRITE		(1UL << 1)
+# define PR_SHADOW_STACK_PUSH		(1UL << 2)
+
+#define PR_SHADOW_STACK_ALL_MODES \
+	PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_WRITE | PR_SHADOW_STACK_PUSH
+
+#define SHADOW_STACK_SET_TOKEN (1ULL << 0)     /* Set up a restore token in the shadow stack */
+#define SHADOW_STACK_SET_MARKER (1ULL << 1)     /* Set up a top of stack merker in the shadow stack */
+
+#define GCS_CAP_ADDR_MASK		(0xfffffffffffff000UL)
+#define GCS_CAP_TOKEN_MASK		(0x0000000000000fffUL)
+#define GCS_CAP_VALID_TOKEN		1
+#define GCS_CAP_IN_PROGRESS_TOKEN	5
+
+#define GCS_CAP(x) (((unsigned long)(x) & GCS_CAP_ADDR_MASK) | \
+		    GCS_CAP_VALID_TOKEN)
+
+static inline unsigned long *get_gcspr(void)
+{
+	unsigned long *gcspr;
+
+	asm volatile(
+		"mrs	%0, S3_3_C2_C5_1"
+	: "=r" (gcspr)
+	:
+	: "cc");
+
+	return gcspr;
+}
+
+static inline void __attribute__((always_inline)) gcsss1(unsigned long *Xt)
+{
+	asm volatile (
+		"sys #3, C7, C7, #2, %0\n"
+		:
+		: "rZ" (Xt)
+		: "memory");
+}
+
+static inline unsigned long __attribute__((always_inline)) *gcsss2(void)
+{
+	unsigned long *Xt;
+
+	asm volatile(
+		"SYSL %0, #3, C7, C7, #3\n"
+		: "=r" (Xt)
+		:
+		: "memory");
+
+	return Xt;
+}
+
+static inline bool chkfeat_gcs(void)
+{
+	register long val __asm__ ("x16") = 1;
+
+	/* CHKFEAT x16 */
+	asm volatile(
+		"hint #0x28\n"
+		: "=r" (val)
+		: "r" (val));
+
+	return val != 1;
+}
+
+#endif
diff --git a/tools/testing/selftests/arm64/gcs/gcspushm.S b/tools/testing/selftests/arm64/gcs/gcspushm.S
new file mode 100644
index 000000000000..bbe17c1325ac
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcspushm.S
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright 2024 Arm Limited
+//
+// Give ourselves GCS push permissions then use them
+
+#include <asm/unistd.h>
+
+/* Shadow Stack/Guarded Control Stack interface */
+#define PR_GET_SHADOW_STACK_STATUS	74
+#define PR_SET_SHADOW_STACK_STATUS      75
+#define PR_LOCK_SHADOW_STACK_STATUS     76
+
+# define PR_SHADOW_STACK_ENABLE         (1UL << 0)
+# define PR_SHADOW_STACK_WRITE		(1UL << 1)
+# define PR_SHADOW_STACK_PUSH		(1UL << 2)
+
+#define KSFT_SKIP 4
+
+.macro function name
+	.macro endfunction
+		.type \name, @function
+		.purgem endfunction
+	.endm
+\name:
+.endm
+
+// Print a single character x0 to stdout
+// Clobbers x0-x2,x8
+function putc
+	str	x0, [sp, #-16]!
+
+	mov	x0, #1			// STDOUT_FILENO
+	mov	x1, sp
+	mov	x2, #1
+	mov	x8, #__NR_write
+	svc	#0
+
+	add	sp, sp, #16
+	ret
+endfunction
+.globl	putc
+
+// Print a NUL-terminated string starting at address x0 to stdout
+// Clobbers x0-x3,x8
+function puts
+	mov	x1, x0
+
+	mov	x2, #0
+0:	ldrb	w3, [x0], #1
+	cbz	w3, 1f
+	add	x2, x2, #1
+	b	0b
+
+1:	mov	w0, #1			// STDOUT_FILENO
+	mov	x8, #__NR_write
+	svc	#0
+
+	ret
+endfunction
+.globl	puts
+
+// Utility macro to print a literal string
+// Clobbers x0-x4,x8
+.macro puts string
+	.pushsection .rodata.str1.1, "aMS", @progbits, 1
+.L__puts_literal\@: .string "\string"
+	.popsection
+
+	ldr	x0, =.L__puts_literal\@
+	bl	puts
+.endm
+
+.globl _start
+function _start
+	// Run with GCS
+	mov	x0, PR_SET_SHADOW_STACK_STATUS
+	mov	x1, PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_PUSH
+	mov	x2, xzr
+	mov	x3, xzr
+	mov	x4, xzr
+	mov	x5, xzr
+	mov	x8, #__NR_prctl
+	svc	#0
+	cbz	x0, 1f
+	puts	"Failed to enable GCS with push permission\n"
+	mov	x0, #KSFT_SKIP
+	b	2f
+1:
+	sys	#3, c7, c7, #0, x0	// GCSPUSHM
+	sysl	x0, #3, c7, c7, #1	// GCSPOPM
+
+	mov	x0, #0
+2:
+	mov	x8, #__NR_exit
+	svc	#0
diff --git a/tools/testing/selftests/arm64/gcs/gcsstr.S b/tools/testing/selftests/arm64/gcs/gcsstr.S
new file mode 100644
index 000000000000..a42bba6e30b1
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/gcsstr.S
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright 2024 Arm Limited
+//
+// Give ourselves GCS write permissions then use them
+
+#include <asm/unistd.h>
+
+/* Shadow Stack/Guarded Control Stack interface */
+#define PR_GET_SHADOW_STACK_STATUS	74
+#define PR_SET_SHADOW_STACK_STATUS      75
+#define PR_LOCK_SHADOW_STACK_STATUS     76
+
+# define PR_SHADOW_STACK_ENABLE         (1UL << 0)
+# define PR_SHADOW_STACK_WRITE		(1UL << 1)
+# define PR_SHADOW_STACK_PUSH		(1UL << 2)
+
+#define	GCSPR_EL0 S3_3_C2_C5_1
+
+#define KSFT_SKIP 4
+
+.macro function name
+	.macro endfunction
+		.type \name, @function
+		.purgem endfunction
+	.endm
+\name:
+.endm
+
+// Print a single character x0 to stdout
+// Clobbers x0-x2,x8
+function putc
+	str	x0, [sp, #-16]!
+
+	mov	x0, #1			// STDOUT_FILENO
+	mov	x1, sp
+	mov	x2, #1
+	mov	x8, #__NR_write
+	svc	#0
+
+	add	sp, sp, #16
+	ret
+endfunction
+.globl	putc
+
+// Print a NUL-terminated string starting at address x0 to stdout
+// Clobbers x0-x3,x8
+function puts
+	mov	x1, x0
+
+	mov	x2, #0
+0:	ldrb	w3, [x0], #1
+	cbz	w3, 1f
+	add	x2, x2, #1
+	b	0b
+
+1:	mov	w0, #1			// STDOUT_FILENO
+	mov	x8, #__NR_write
+	svc	#0
+
+	ret
+endfunction
+.globl	puts
+
+// Utility macro to print a literal string
+// Clobbers x0-x4,x8
+.macro puts string
+	.pushsection .rodata.str1.1, "aMS", @progbits, 1
+.L__puts_literal\@: .string "\string"
+	.popsection
+
+	ldr	x0, =.L__puts_literal\@
+	bl	puts
+.endm
+
+.globl _start
+function _start
+	// Run with GCS
+	mov	x0, PR_SET_SHADOW_STACK_STATUS
+	mov	x1, PR_SHADOW_STACK_ENABLE | PR_SHADOW_STACK_WRITE
+	mov	x2, xzr
+	mov	x3, xzr
+	mov	x4, xzr
+	mov	x5, xzr
+	mov	x8, #__NR_prctl
+	svc	#0
+	cbz	x0, 1f
+	puts	"Failed to enable GCS with write permission\n"
+	mov	x0, #KSFT_SKIP
+	b	2f
+1:
+	mrs	x0, GCSPR_EL0
+	sub	x0, x0, #8
+	.inst	0xd91f1c01	// GCSSTR x1, x0
+
+	mov	x0, #0
+2:
+	mov	x8, #__NR_exit
+	svc	#0
diff --git a/tools/testing/selftests/arm64/gcs/libc-gcs.c b/tools/testing/selftests/arm64/gcs/libc-gcs.c
new file mode 100644
index 000000000000..17b2fabfec38
--- /dev/null
+++ b/tools/testing/selftests/arm64/gcs/libc-gcs.c
@@ -0,0 +1,728 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023 ARM Limited.
+ */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <stdbool.h>
+
+#include <sys/auxv.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/uio.h>
+
+#include <asm/hwcap.h>
+#include <asm/mman.h>
+
+#include <linux/compiler.h>
+
+#include "kselftest_harness.h"
+
+#include "gcs-util.h"
+
+#define my_syscall2(num, arg1, arg2)                                          \
+({                                                                            \
+	register long _num  __asm__ ("x8") = (num);                           \
+	register long _arg1 __asm__ ("x0") = (long)(arg1);                    \
+	register long _arg2 __asm__ ("x1") = (long)(arg2);                    \
+	register long _arg3 __asm__ ("x2") = 0;                               \
+	register long _arg4 __asm__ ("x3") = 0;                               \
+	register long _arg5 __asm__ ("x4") = 0;                               \
+	                                                                      \
+	__asm__  volatile (                                                   \
+		"svc #0\n"                                                    \
+		: "=r"(_arg1)                                                 \
+		: "r"(_arg1), "r"(_arg2),                                     \
+		  "r"(_arg3), "r"(_arg4),                                     \
+		  "r"(_arg5), "r"(_num)					      \
+		: "memory", "cc"                                              \
+	);                                                                    \
+	_arg1;                                                                \
+})
+
+static noinline void gcs_recurse(int depth)
+{
+	if (depth)
+		gcs_recurse(depth - 1);
+
+	/* Prevent tail call optimization so we actually recurse */
+	asm volatile("dsb sy" : : : "memory");
+}
+
+/* Smoke test that a function call and return works*/
+TEST(can_call_function)
+{
+	gcs_recurse(0);
+}
+
+static void *gcs_test_thread(void *arg)
+{
+	int ret;
+	unsigned long mode;
+
+	/*
+	 * Some libcs don't seem to fill unused arguments with 0 but
+	 * the kernel validates this so we supply all 5 arguments.
+	 */
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &mode, 0, 0, 0);
+	if (ret != 0) {
+		ksft_print_msg("PR_GET_SHADOW_STACK_STATUS failed: %d\n", ret);
+		return NULL;
+	}
+
+	if (!(mode & PR_SHADOW_STACK_ENABLE)) {
+		ksft_print_msg("GCS not enabled in thread, mode is %lu\n",
+			       mode);
+		return NULL;
+	}
+
+	/* Just in case... */
+	gcs_recurse(0);
+
+	/* Use a non-NULL value to indicate a pass */
+	return &gcs_test_thread;
+}
+
+/* Verify that if we start a new thread it has GCS enabled */
+TEST(gcs_enabled_thread)
+{
+	pthread_t thread;
+	void *thread_ret;
+	int ret;
+
+	ret = pthread_create(&thread, NULL, gcs_test_thread, NULL);
+	ASSERT_TRUE(ret == 0);
+	if (ret != 0)
+		return;
+
+	ret = pthread_join(thread, &thread_ret);
+	ASSERT_TRUE(ret == 0);
+	if (ret != 0)
+		return;
+
+	ASSERT_TRUE(thread_ret != NULL);
+}
+
+/* Read the GCS until we find the terminator */
+TEST(gcs_find_terminator)
+{
+	unsigned long *gcs, *cur;
+
+	gcs = get_gcspr();
+	cur = gcs;
+	while (*cur)
+		cur++;
+
+	ksft_print_msg("GCS in use from %p-%p\n", gcs, cur);
+
+	/*
+	 * We should have at least whatever called into this test so
+	 * the two pointer should differ.
+	 */
+	ASSERT_TRUE(gcs != cur);
+}
+
+/*
+ * We can access a GCS via ptrace
+ *
+ * This could usefully have a fixture but note that each test is
+ * fork()ed into a new child whcih causes issues.  Might be better to
+ * lift at least some of this out into a separate, non-harness, test
+ * program.
+ */
+TEST(ptrace_read_write)
+{
+	pid_t child, pid;
+	int ret, status;
+	siginfo_t si;
+	uint64_t val, rval, gcspr;
+	struct user_gcs child_gcs;
+	struct iovec iov, local_iov, remote_iov;
+
+	child = fork();
+	if (child == -1) {
+		ksft_print_msg("fork() failed: %d (%s)\n",
+			       errno, strerror(errno));
+		ASSERT_NE(child, -1);
+	}
+
+	if (child == 0) {
+		/*
+		 * In child, make sure there's something on the stack and
+		 * ask to be traced.
+		 */
+		gcs_recurse(0);
+		if (ptrace(PTRACE_TRACEME, -1, NULL, NULL))
+			ksft_exit_fail_msg("PTRACE_TRACEME %s",
+					   strerror(errno));
+
+		if (raise(SIGSTOP))
+			ksft_exit_fail_msg("raise(SIGSTOP) %s",
+					   strerror(errno));
+
+		return;
+	}
+
+	ksft_print_msg("Child: %d\n", child);
+
+	/* Attach to the child */
+	while (1) {
+		int sig;
+
+		pid = wait(&status);
+		if (pid == -1) {
+			ksft_print_msg("wait() failed: %s",
+				       strerror(errno));
+			goto error;
+		}
+
+		/*
+		 * This should never happen but it's hard to flag in
+		 * the framework.
+		 */
+		if (pid != child)
+			continue;
+
+		if (WIFEXITED(status) || WIFSIGNALED(status))
+			ksft_exit_fail_msg("Child died unexpectedly\n");
+
+		if (!WIFSTOPPED(status))
+			goto error;
+
+		sig = WSTOPSIG(status);
+
+		if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &si)) {
+			if (errno == ESRCH) {
+				ASSERT_NE(errno, ESRCH);
+				return;
+			}
+
+			if (errno == EINVAL) {
+				sig = 0; /* bust group-stop */
+				goto cont;
+			}
+
+			ksft_print_msg("PTRACE_GETSIGINFO: %s\n",
+				       strerror(errno));
+			goto error;
+		}
+
+		if (sig == SIGSTOP && si.si_code == SI_TKILL &&
+		    si.si_pid == pid)
+			break;
+
+	cont:
+		if (ptrace(PTRACE_CONT, pid, NULL, sig)) {
+			if (errno == ESRCH) {
+				ASSERT_NE(errno, ESRCH);
+				return;
+			}
+
+			ksft_print_msg("PTRACE_CONT: %s\n", strerror(errno));
+			goto error;
+		}
+	}
+
+	/* Where is the child GCS? */
+	iov.iov_base = &child_gcs;
+	iov.iov_len = sizeof(child_gcs);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_ARM_GCS, &iov);
+	if (ret != 0) {
+		ksft_print_msg("Failed to read child GCS state: %s (%d)\n",
+			       strerror(errno), errno);
+		goto error;
+	}
+
+	/* We should have inherited GCS over fork(), confirm */
+	if (!(child_gcs.features_enabled & PR_SHADOW_STACK_ENABLE)) {
+		ASSERT_TRUE(child_gcs.features_enabled &
+			    PR_SHADOW_STACK_ENABLE);
+		goto error;
+	}
+
+	gcspr = child_gcs.gcspr_el0;
+	ksft_print_msg("Child GCSPR 0x%lx, flags %llx, locked %llx\n",
+		       gcspr, child_gcs.features_enabled,
+		       child_gcs.features_locked);
+
+	/* Ideally we'd cross check with the child memory map */
+
+	errno = 0;
+	val = ptrace(PTRACE_PEEKDATA, child, (void *)gcspr, NULL);
+	ret = errno;
+	if (ret != 0)
+		ksft_print_msg("PTRACE_PEEKDATA failed: %s (%d)\n",
+			       strerror(ret), ret);
+	EXPECT_EQ(ret, 0);
+
+	/* The child should be in a function, the GCSPR shouldn't be 0 */
+	EXPECT_NE(val, 0);
+
+	/* Same thing via process_vm_readv() */
+	local_iov.iov_base = &rval;
+	local_iov.iov_len = sizeof(rval);
+	remote_iov.iov_base = (void *)gcspr;
+	remote_iov.iov_len = sizeof(rval);
+	ret = process_vm_readv(child, &local_iov, 1, &remote_iov, 1, 0);
+	if (ret == -1)
+		ksft_print_msg("process_vm_readv() failed: %s (%d)\n",
+			       strerror(errno), errno);
+	EXPECT_EQ(ret, sizeof(rval));
+	EXPECT_EQ(val, rval);
+
+	/* Write data via a peek */
+	ret = ptrace(PTRACE_POKEDATA, child, (void *)gcspr, NULL);
+	if (ret == -1)
+		ksft_print_msg("PTRACE_POKEDATA failed: %s (%d)\n",
+			       strerror(errno), errno);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(0, ptrace(PTRACE_PEEKDATA, child, (void *)gcspr, NULL));
+
+	/* Restore what we had before */
+	ret = ptrace(PTRACE_POKEDATA, child, (void *)gcspr, val);
+	if (ret == -1)
+		ksft_print_msg("PTRACE_POKEDATA failed: %s (%d)\n",
+			       strerror(errno), errno);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(val, ptrace(PTRACE_PEEKDATA, child, (void *)gcspr, NULL));
+
+	/* That's all, folks */
+	kill(child, SIGKILL);
+	return;
+
+error:
+	kill(child, SIGKILL);
+	ASSERT_FALSE(true);
+}
+
+FIXTURE(map_gcs)
+{
+	unsigned long *stack;
+};
+
+FIXTURE_VARIANT(map_gcs)
+{
+	size_t stack_size;
+	unsigned long flags;
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s2k_cap_marker)
+{
+	.stack_size = 2 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s2k_cap)
+{
+	.stack_size = 2 * 1024,
+	.flags = SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s2k_marker)
+{
+	.stack_size = 2 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s2k)
+{
+	.stack_size = 2 * 1024,
+	.flags = 0,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s4k_cap_marker)
+{
+	.stack_size = 4 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s4k_cap)
+{
+	.stack_size = 4 * 1024,
+	.flags = SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s3k_marker)
+{
+	.stack_size = 4 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s4k)
+{
+	.stack_size = 4 * 1024,
+	.flags = 0,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s16k_cap_marker)
+{
+	.stack_size = 16 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s16k_cap)
+{
+	.stack_size = 16 * 1024,
+	.flags = SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s16k_marker)
+{
+	.stack_size = 16 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s16k)
+{
+	.stack_size = 16 * 1024,
+	.flags = 0,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s64k_cap_marker)
+{
+	.stack_size = 64 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s64k_cap)
+{
+	.stack_size = 64 * 1024,
+	.flags = SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s64k_marker)
+{
+	.stack_size = 64 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s64k)
+{
+	.stack_size = 64 * 1024,
+	.flags = 0,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s128k_cap_marker)
+{
+	.stack_size = 128 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s128k_cap)
+{
+	.stack_size = 128 * 1024,
+	.flags = SHADOW_STACK_SET_TOKEN,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s128k_marker)
+{
+	.stack_size = 128 * 1024,
+	.flags = SHADOW_STACK_SET_MARKER,
+};
+
+FIXTURE_VARIANT_ADD(map_gcs, s128k)
+{
+	.stack_size = 128 * 1024,
+	.flags = 0,
+};
+
+FIXTURE_SETUP(map_gcs)
+{
+	self->stack = (void *)syscall(__NR_map_shadow_stack, 0,
+				      variant->stack_size, 
+				      variant->flags);
+	ASSERT_FALSE(self->stack == MAP_FAILED);
+	ksft_print_msg("Allocated stack from %p-%p\n", self->stack,
+		       self->stack + variant->stack_size);
+}
+
+FIXTURE_TEARDOWN(map_gcs)
+{
+	int ret;
+
+	if (self->stack != MAP_FAILED) {
+		ret = munmap(self->stack, variant->stack_size);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+/* The stack has a cap token */
+TEST_F(map_gcs, stack_capped)
+{
+	unsigned long *stack = self->stack;
+	size_t cap_index;
+
+	cap_index = (variant->stack_size / sizeof(unsigned long));
+
+	switch (variant->flags & (SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN)) {
+	case SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN:
+		cap_index -= 2;
+		break;
+	case SHADOW_STACK_SET_TOKEN:
+		cap_index -= 1;
+		break;
+	case SHADOW_STACK_SET_MARKER:
+	case 0:
+		/* No cap, no test */
+		return;
+	}
+
+	ASSERT_EQ(stack[cap_index], GCS_CAP(&stack[cap_index]));
+}
+
+/* The top of the stack is 0 */
+TEST_F(map_gcs, stack_terminated)
+{
+	unsigned long *stack = self->stack;
+	size_t term_index;
+
+	if (!(variant->flags & SHADOW_STACK_SET_MARKER))
+		return;
+
+	term_index = (variant->stack_size / sizeof(unsigned long)) - 1;
+
+	ASSERT_EQ(stack[term_index], 0);
+}
+
+/* Writes should fault */
+TEST_F_SIGNAL(map_gcs, not_writeable, SIGSEGV)
+{
+	self->stack[0] = 0;
+}
+
+/* Put it all together, we can safely switch to and from the stack */
+TEST_F(map_gcs, stack_switch)
+{
+	size_t cap_index;
+	cap_index = (variant->stack_size / sizeof(unsigned long));
+	unsigned long *orig_gcspr_el0, *pivot_gcspr_el0;
+
+	/* Skip over the stack terminator and point at the cap */
+	switch (variant->flags & (SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN)) {
+	case SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN:
+		cap_index -= 2;
+		break;
+	case SHADOW_STACK_SET_TOKEN:
+		cap_index -= 1;
+		break;
+	case SHADOW_STACK_SET_MARKER:
+	case 0:
+		/* No cap, no test */
+		return;
+	}
+	pivot_gcspr_el0 = &self->stack[cap_index];
+
+	/* Pivot to the new GCS */
+	ksft_print_msg("Pivoting to %p from %p, target has value 0x%lx\n",
+		       pivot_gcspr_el0, get_gcspr(),
+		       *pivot_gcspr_el0);
+	gcsss1(pivot_gcspr_el0);
+	orig_gcspr_el0 = gcsss2();
+	ksft_print_msg("Pivoted to %p from %p, target has value 0x%lx\n",
+		       get_gcspr(), orig_gcspr_el0,
+		       *pivot_gcspr_el0);
+
+	ksft_print_msg("Pivoted, GCSPR_EL0 now %p\n", get_gcspr());
+
+	/* New GCS must be in the new buffer */
+	ASSERT_TRUE((unsigned long)get_gcspr() > (unsigned long)self->stack);
+	ASSERT_TRUE((unsigned long)get_gcspr() <=
+		    (unsigned long)self->stack + variant->stack_size);
+
+	/* We should be able to use all but 2 slots of the new stack */
+	ksft_print_msg("Recursing %zu levels\n", cap_index - 1);
+	gcs_recurse(cap_index - 1);
+
+	/* Pivot back to the original GCS */
+	gcsss1(orig_gcspr_el0);
+	pivot_gcspr_el0 = gcsss2();
+
+	gcs_recurse(0);
+	ksft_print_msg("Pivoted back to GCSPR_EL0 0x%p\n", get_gcspr());
+}
+
+/* We fault if we try to go beyond the end of the stack */
+TEST_F_SIGNAL(map_gcs, stack_overflow, SIGSEGV)
+{
+	size_t cap_index;
+	cap_index = (variant->stack_size / sizeof(unsigned long));
+	unsigned long *orig_gcspr_el0, *pivot_gcspr_el0;
+
+	/* Skip over the stack terminator and point at the cap */
+	switch (variant->flags & (SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN)) {
+	case SHADOW_STACK_SET_MARKER | SHADOW_STACK_SET_TOKEN:
+		cap_index -= 2;
+		break;
+	case SHADOW_STACK_SET_TOKEN:
+		cap_index -= 1;
+		break;
+	case SHADOW_STACK_SET_MARKER:
+	case 0:
+		/* No cap, no test but we need to SEGV to avoid a false fail */
+		orig_gcspr_el0 = get_gcspr();
+		*orig_gcspr_el0 = 0;
+		return;
+	}
+	pivot_gcspr_el0 = &self->stack[cap_index];
+
+	/* Pivot to the new GCS */
+	ksft_print_msg("Pivoting to %p from %p, target has value 0x%lx\n",
+		       pivot_gcspr_el0, get_gcspr(),
+		       *pivot_gcspr_el0);
+	gcsss1(pivot_gcspr_el0);
+	orig_gcspr_el0 = gcsss2();
+	ksft_print_msg("Pivoted to %p from %p, target has value 0x%lx\n",
+		       pivot_gcspr_el0, orig_gcspr_el0,
+		       *pivot_gcspr_el0);
+
+	ksft_print_msg("Pivoted, GCSPR_EL0 now %p\n", get_gcspr());
+
+	/* New GCS must be in the new buffer */
+	ASSERT_TRUE((unsigned long)get_gcspr() > (unsigned long)self->stack);
+	ASSERT_TRUE((unsigned long)get_gcspr() <=
+		    (unsigned long)self->stack + variant->stack_size);
+
+	/* Now try to recurse, we should fault doing this. */
+	ksft_print_msg("Recursing %zu levels...\n", cap_index + 1);
+	gcs_recurse(cap_index + 1);
+	ksft_print_msg("...done\n");
+
+	/* Clean up properly to try to guard against spurious passes. */
+	gcsss1(orig_gcspr_el0);
+	pivot_gcspr_el0 = gcsss2();
+	ksft_print_msg("Pivoted back to GCSPR_EL0 0x%p\n", get_gcspr());
+}
+
+FIXTURE(map_invalid_gcs)
+{
+};
+
+FIXTURE_VARIANT(map_invalid_gcs)
+{
+	size_t stack_size;
+};
+
+FIXTURE_SETUP(map_invalid_gcs)
+{
+}
+
+FIXTURE_TEARDOWN(map_invalid_gcs)
+{
+}
+
+/* GCS must be larger than 16 bytes */
+FIXTURE_VARIANT_ADD(map_invalid_gcs, too_small)
+{
+	.stack_size = 8,
+};
+
+/* GCS size must be 16 byte aligned */
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_1)  { .stack_size = 1024 + 1  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_2)  { .stack_size = 1024 + 2  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_3)  { .stack_size = 1024 + 3  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_4)  { .stack_size = 1024 + 4  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_5)  { .stack_size = 1024 + 5  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_6)  { .stack_size = 1024 + 6  };
+FIXTURE_VARIANT_ADD(map_invalid_gcs, unligned_7)  { .stack_size = 1024 + 7  };
+
+TEST_F(map_invalid_gcs, do_map)
+{
+	void *stack;
+
+	stack = (void *)syscall(__NR_map_shadow_stack, 0,
+				variant->stack_size, 0);
+	ASSERT_TRUE(stack == MAP_FAILED);
+	if (stack != MAP_FAILED)
+		munmap(stack, variant->stack_size);
+}
+
+FIXTURE(invalid_mprotect)
+{
+	unsigned long *stack;
+	size_t stack_size;
+};
+
+FIXTURE_VARIANT(invalid_mprotect)
+{
+	unsigned long flags;
+};
+
+FIXTURE_SETUP(invalid_mprotect)
+{
+	self->stack_size = sysconf(_SC_PAGE_SIZE);
+	self->stack = (void *)syscall(__NR_map_shadow_stack, 0,
+				      self->stack_size, 0);
+	ASSERT_FALSE(self->stack == MAP_FAILED);
+	ksft_print_msg("Allocated stack from %p-%p\n", self->stack,
+		       self->stack + self->stack_size);
+}
+
+FIXTURE_TEARDOWN(invalid_mprotect)
+{
+	int ret;
+
+	if (self->stack != MAP_FAILED) {
+		ret = munmap(self->stack, self->stack_size);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+FIXTURE_VARIANT_ADD(invalid_mprotect, exec)
+{
+	.flags = PROT_EXEC,
+};
+
+TEST_F(invalid_mprotect, do_map)
+{
+	int ret;
+
+	ret = mprotect(self->stack, self->stack_size, variant->flags);
+	ASSERT_EQ(ret, -1);
+}
+
+TEST_F(invalid_mprotect, do_map_read)
+{
+	int ret;
+
+	ret = mprotect(self->stack, self->stack_size,
+		       variant->flags | PROT_READ);
+	ASSERT_EQ(ret, -1);
+}
+
+int main(int argc, char **argv)
+{
+	unsigned long gcs_mode;
+	int ret;
+
+	if (!(getauxval(AT_HWCAP) & HWCAP_GCS))
+		ksft_exit_skip("SKIP GCS not supported\n");
+
+	/* 
+	 * Force shadow stacks on, our tests *should* be fine with or
+	 * without libc support and with or without this having ended
+	 * up tagged for GCS and enabled by the dynamic linker.  We
+	 * can't use the libc prctl() function since we can't return
+	 * from enabling the stack.
+	 */
+	ret = my_syscall2(__NR_prctl, PR_GET_SHADOW_STACK_STATUS, &gcs_mode);
+	if (ret) {
+		ksft_print_msg("Failed to read GCS state: %d\n", ret);
+		return EXIT_FAILURE;
+	}
+	
+	if (!(gcs_mode & PR_SHADOW_STACK_ENABLE)) {
+		gcs_mode = PR_SHADOW_STACK_ENABLE;
+		ret = my_syscall2(__NR_prctl, PR_SET_SHADOW_STACK_STATUS,
+				  gcs_mode);
+		if (ret) {
+			ksft_print_msg("Failed to configure GCS: %d\n", ret);
+			return EXIT_FAILURE;
+		}
+	}
+
+	/* Avoid returning in case libc doesn't understand GCS */
+	exit(test_harness_run(argc, argv));
+}
diff --git a/tools/testing/selftests/arm64/mte/.gitignore b/tools/testing/selftests/arm64/mte/.gitignore
new file mode 100644
index 000000000000..052d0f9f92b3
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/.gitignore
@@ -0,0 +1,8 @@
+check_buffer_fill
+check_gcr_el1_cswitch
+check_tags_inclusion
+check_child_memory
+check_mmap_options
+check_prctl
+check_ksm_options
+check_user_mem
diff --git a/tools/testing/selftests/arm64/mte/Makefile b/tools/testing/selftests/arm64/mte/Makefile
new file mode 100644
index 000000000000..0d7ac3db8390
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/Makefile
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 ARM Limited
+
+CFLAGS += -std=gnu99 -I. -pthread
+LDFLAGS += -pthread
+SRCS := $(filter-out mte_common_util.c,$(wildcard *.c))
+PROGS := $(patsubst %.c,%,$(SRCS))
+
+ifeq ($(LLVM),)
+# For GCC check that the toolchain has MTE support.
+
+# preserve CC value from top level Makefile
+ifeq ($(CC),cc)
+CC := $(CROSS_COMPILE)gcc
+endif
+
+#check if the compiler works well
+mte_cc_support := $(shell if ($(CC) $(CFLAGS) -march=armv8.5-a+memtag -E -x c /dev/null -o /dev/null 2>&1) then echo "1"; fi)
+
+else
+
+# All supported clang versions also support MTE.
+mte_cc_support := 1
+
+endif
+
+ifeq ($(mte_cc_support),1)
+# Generated binaries to be installed by top KSFT script
+TEST_GEN_PROGS := $(PROGS)
+
+else
+    $(warning compiler "$(CC)" does not support the ARMv8.5 MTE extension.)
+    $(warning test program "mte" will not be created.)
+endif
+
+# Include KSFT lib.mk.
+include ../../lib.mk
+
+ifeq ($(mte_cc_support),1)
+$(TEST_GEN_PROGS): mte_common_util.c mte_helper.S
+endif
diff --git a/tools/testing/selftests/arm64/mte/check_buffer_fill.c b/tools/testing/selftests/arm64/mte/check_buffer_fill.c
new file mode 100644
index 000000000000..ff4e07503349
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_buffer_fill.c
@@ -0,0 +1,478 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define OVERFLOW_RANGE MT_GRANULE_SIZE
+
+static int sizes[] = {
+	1, 555, 1033, MT_GRANULE_SIZE - 1, MT_GRANULE_SIZE,
+	/* page size - 1*/ 0, /* page_size */ 0, /* page size + 1 */ 0
+};
+
+enum mte_block_test_alloc {
+	UNTAGGED_TAGGED,
+	TAGGED_UNTAGGED,
+	TAGGED_TAGGED,
+	BLOCK_ALLOC_MAX,
+};
+
+static int check_buffer_by_byte(int mem_type, int mode)
+{
+	char *ptr;
+	int i, j, item;
+	bool err;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	item = ARRAY_SIZE(sizes);
+
+	for (i = 0; i < item; i++) {
+		ptr = (char *)mte_allocate_memory(sizes[i], mem_type, 0, true);
+		if (check_allocated_memory(ptr, sizes[i], mem_type, true) != KSFT_PASS)
+			return KSFT_FAIL;
+		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i]);
+		/* Set some value in tagged memory */
+		for (j = 0; j < sizes[i]; j++)
+			ptr[j] = '1';
+		mte_wait_after_trig();
+		err = cur_mte_cxt.fault_valid;
+		/* Check the buffer whether it is filled. */
+		for (j = 0; j < sizes[i] && !err; j++) {
+			if (ptr[j] != '1')
+				err = true;
+		}
+		mte_free_memory((void *)ptr, sizes[i], mem_type, true);
+
+		if (err)
+			break;
+	}
+	if (!err)
+		return KSFT_PASS;
+	else
+		return KSFT_FAIL;
+}
+
+static int check_buffer_underflow_by_byte(int mem_type, int mode,
+					  int underflow_range)
+{
+	char *ptr;
+	int i, j, item, last_index;
+	bool err;
+	char *und_ptr = NULL;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	item = ARRAY_SIZE(sizes);
+	for (i = 0; i < item; i++) {
+		ptr = (char *)mte_allocate_memory_tag_range(sizes[i], mem_type, 0,
+							    underflow_range, 0);
+		if (check_allocated_memory_range(ptr, sizes[i], mem_type,
+					       underflow_range, 0) != KSFT_PASS)
+			return KSFT_FAIL;
+
+		mte_initialize_current_context(mode, (uintptr_t)ptr, -underflow_range);
+		last_index = 0;
+		/* Set some value in tagged memory and make the buffer underflow */
+		for (j = sizes[i] - 1; (j >= -underflow_range) &&
+				       (!cur_mte_cxt.fault_valid); j--) {
+			ptr[j] = '1';
+			last_index = j;
+		}
+		mte_wait_after_trig();
+		err = false;
+		/* Check whether the buffer is filled */
+		for (j = 0; j < sizes[i]; j++) {
+			if (ptr[j] != '1') {
+				err = true;
+				ksft_print_msg("Buffer is not filled at index:%d of ptr:0x%p\n",
+						j, ptr);
+				break;
+			}
+		}
+		if (err)
+			goto check_buffer_underflow_by_byte_err;
+
+		switch (mode) {
+		case MTE_NONE_ERR:
+			if (cur_mte_cxt.fault_valid == true || last_index != -underflow_range) {
+				err = true;
+				break;
+			}
+			/* There were no fault so the underflow area should be filled */
+			und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr - underflow_range);
+			for (j = 0 ; j < underflow_range; j++) {
+				if (und_ptr[j] != '1') {
+					err = true;
+					break;
+				}
+			}
+			break;
+		case MTE_ASYNC_ERR:
+			/* Imprecise fault should occur otherwise return error */
+			if (cur_mte_cxt.fault_valid == false) {
+				err = true;
+				break;
+			}
+			/*
+			 * The imprecise fault is checked after the write to the buffer,
+			 * so the underflow area before the fault should be filled.
+			 */
+			und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+			for (j = last_index ; j < 0 ; j++) {
+				if (und_ptr[j] != '1') {
+					err = true;
+					break;
+				}
+			}
+			break;
+		case MTE_SYNC_ERR:
+			/* Precise fault should occur otherwise return error */
+			if (!cur_mte_cxt.fault_valid || (last_index != (-1))) {
+				err = true;
+				break;
+			}
+			/* Underflow area should not be filled */
+			und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+			if (und_ptr[-1] == '1')
+				err = true;
+			break;
+		default:
+			err = true;
+		break;
+		}
+check_buffer_underflow_by_byte_err:
+		mte_free_memory_tag_range((void *)ptr, sizes[i], mem_type, underflow_range, 0);
+		if (err)
+			break;
+	}
+	return (err ? KSFT_FAIL : KSFT_PASS);
+}
+
+static int check_buffer_overflow_by_byte(int mem_type, int mode,
+					  int overflow_range)
+{
+	char *ptr;
+	int i, j, item, last_index;
+	bool err;
+	size_t tagged_size, overflow_size;
+	char *over_ptr = NULL;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	item = ARRAY_SIZE(sizes);
+	for (i = 0; i < item; i++) {
+		ptr = (char *)mte_allocate_memory_tag_range(sizes[i], mem_type, 0,
+							    0, overflow_range);
+		if (check_allocated_memory_range(ptr, sizes[i], mem_type,
+						 0, overflow_range) != KSFT_PASS)
+			return KSFT_FAIL;
+
+		tagged_size = MT_ALIGN_UP(sizes[i]);
+
+		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i] + overflow_range);
+
+		/* Set some value in tagged memory and make the buffer underflow */
+		for (j = 0, last_index = 0 ; (j < (sizes[i] + overflow_range)) &&
+					     (cur_mte_cxt.fault_valid == false); j++) {
+			ptr[j] = '1';
+			last_index = j;
+		}
+		mte_wait_after_trig();
+		err = false;
+		/* Check whether the buffer is filled */
+		for (j = 0; j < sizes[i]; j++) {
+			if (ptr[j] != '1') {
+				err = true;
+				ksft_print_msg("Buffer is not filled at index:%d of ptr:0x%p\n",
+						j, ptr);
+				break;
+			}
+		}
+		if (err)
+			goto check_buffer_overflow_by_byte_err;
+
+		overflow_size = overflow_range - (tagged_size - sizes[i]);
+
+		switch (mode) {
+		case MTE_NONE_ERR:
+			if ((cur_mte_cxt.fault_valid == true) ||
+			    (last_index != (sizes[i] + overflow_range - 1))) {
+				err = true;
+				break;
+			}
+			/* There were no fault so the overflow area should be filled */
+			over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr + tagged_size);
+			for (j = 0 ; j < overflow_size; j++) {
+				if (over_ptr[j] != '1') {
+					err = true;
+					break;
+				}
+			}
+			break;
+		case MTE_ASYNC_ERR:
+			/* Imprecise fault should occur otherwise return error */
+			if (cur_mte_cxt.fault_valid == false) {
+				err = true;
+				break;
+			}
+			/*
+			 * The imprecise fault is checked after the write to the buffer,
+			 * so the overflow area should be filled before the fault.
+			 */
+			over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+			for (j = tagged_size ; j < last_index; j++) {
+				if (over_ptr[j] != '1') {
+					err = true;
+					break;
+				}
+			}
+			break;
+		case MTE_SYNC_ERR:
+			/* Precise fault should occur otherwise return error */
+			if (!cur_mte_cxt.fault_valid || (last_index != tagged_size)) {
+				err = true;
+				break;
+			}
+			/* Underflow area should not be filled */
+			over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr + tagged_size);
+			for (j = 0 ; j < overflow_size; j++) {
+				if (over_ptr[j] == '1')
+					err = true;
+			}
+			break;
+		default:
+			err = true;
+		break;
+		}
+check_buffer_overflow_by_byte_err:
+		mte_free_memory_tag_range((void *)ptr, sizes[i], mem_type, 0, overflow_range);
+		if (err)
+			break;
+	}
+	return (err ? KSFT_FAIL : KSFT_PASS);
+}
+
+static int check_buffer_by_block_iterate(int mem_type, int mode, size_t size)
+{
+	char *src, *dst;
+	int j, result = KSFT_PASS;
+	enum mte_block_test_alloc alloc_type = UNTAGGED_TAGGED;
+
+	for (alloc_type = UNTAGGED_TAGGED; alloc_type < (int) BLOCK_ALLOC_MAX; alloc_type++) {
+		switch (alloc_type) {
+		case UNTAGGED_TAGGED:
+			src = (char *)mte_allocate_memory(size, mem_type, 0, false);
+			if (check_allocated_memory(src, size, mem_type, false) != KSFT_PASS)
+				return KSFT_FAIL;
+
+			dst = (char *)mte_allocate_memory(size, mem_type, 0, true);
+			if (check_allocated_memory(dst, size, mem_type, true) != KSFT_PASS) {
+				mte_free_memory((void *)src, size, mem_type, false);
+				return KSFT_FAIL;
+			}
+
+			break;
+		case TAGGED_UNTAGGED:
+			dst = (char *)mte_allocate_memory(size, mem_type, 0, false);
+			if (check_allocated_memory(dst, size, mem_type, false) != KSFT_PASS)
+				return KSFT_FAIL;
+
+			src = (char *)mte_allocate_memory(size, mem_type, 0, true);
+			if (check_allocated_memory(src, size, mem_type, true) != KSFT_PASS) {
+				mte_free_memory((void *)dst, size, mem_type, false);
+				return KSFT_FAIL;
+			}
+			break;
+		case TAGGED_TAGGED:
+			src = (char *)mte_allocate_memory(size, mem_type, 0, true);
+			if (check_allocated_memory(src, size, mem_type, true) != KSFT_PASS)
+				return KSFT_FAIL;
+
+			dst = (char *)mte_allocate_memory(size, mem_type, 0, true);
+			if (check_allocated_memory(dst, size, mem_type, true) != KSFT_PASS) {
+				mte_free_memory((void *)src, size, mem_type, true);
+				return KSFT_FAIL;
+			}
+			break;
+		default:
+			return KSFT_FAIL;
+		}
+
+		cur_mte_cxt.fault_valid = false;
+		result = KSFT_PASS;
+		mte_initialize_current_context(mode, (uintptr_t)dst, size);
+		/* Set some value in memory and copy*/
+		memset((void *)src, (int)'1', size);
+		memcpy((void *)dst, (void *)src, size);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid) {
+			result = KSFT_FAIL;
+			goto check_buffer_by_block_err;
+		}
+		/* Check the buffer whether it is filled. */
+		for (j = 0; j < size; j++) {
+			if (src[j] != dst[j] || src[j] != '1') {
+				result = KSFT_FAIL;
+				break;
+			}
+		}
+check_buffer_by_block_err:
+		mte_free_memory((void *)src, size, mem_type,
+				MT_FETCH_TAG((uintptr_t)src) ? true : false);
+		mte_free_memory((void *)dst, size, mem_type,
+				MT_FETCH_TAG((uintptr_t)dst) ? true : false);
+		if (result != KSFT_PASS)
+			return result;
+	}
+	return result;
+}
+
+static int check_buffer_by_block(int mem_type, int mode)
+{
+	int i, item, result = KSFT_PASS;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	item = ARRAY_SIZE(sizes);
+	cur_mte_cxt.fault_valid = false;
+	for (i = 0; i < item; i++) {
+		result = check_buffer_by_block_iterate(mem_type, mode, sizes[i]);
+		if (result != KSFT_PASS)
+			break;
+	}
+	return result;
+}
+
+static int compare_memory_tags(char *ptr, size_t size, int tag)
+{
+	int i, new_tag;
+
+	for (i = 0 ; i < size ; i += MT_GRANULE_SIZE) {
+		new_tag = MT_FETCH_TAG((uintptr_t)(mte_get_tag_address(ptr + i)));
+		if (tag != new_tag) {
+			ksft_print_msg("FAIL: child mte tag mismatch\n");
+			return KSFT_FAIL;
+		}
+	}
+	return KSFT_PASS;
+}
+
+static int check_memory_initial_tags(int mem_type, int mode, int mapping)
+{
+	char *ptr;
+	int run, fd;
+	int total = ARRAY_SIZE(sizes);
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	for (run = 0; run < total; run++) {
+		/* check initial tags for anonymous mmap */
+		ptr = (char *)mte_allocate_memory(sizes[run], mem_type, mapping, false);
+		if (check_allocated_memory(ptr, sizes[run], mem_type, false) != KSFT_PASS)
+			return KSFT_FAIL;
+		if (compare_memory_tags(ptr, sizes[run], 0) != KSFT_PASS) {
+			mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+			return KSFT_FAIL;
+		}
+		mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+
+		/* check initial tags for file mmap */
+		fd = create_temp_file();
+		if (fd == -1)
+			return KSFT_FAIL;
+		ptr = (char *)mte_allocate_file_memory(sizes[run], mem_type, mapping, false, fd);
+		if (check_allocated_memory(ptr, sizes[run], mem_type, false) != KSFT_PASS) {
+			close(fd);
+			return KSFT_FAIL;
+		}
+		if (compare_memory_tags(ptr, sizes[run], 0) != KSFT_PASS) {
+			mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+			close(fd);
+			return KSFT_FAIL;
+		}
+		mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+		close(fd);
+	}
+	return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+	size_t page_size = getpagesize();
+	int item = ARRAY_SIZE(sizes);
+
+	sizes[item - 3] = page_size - 1;
+	sizes[item - 2] = page_size;
+	sizes[item - 1] = page_size + 1;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	/* Register SIGSEGV handler */
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+
+	/* Set test plan */
+	ksft_set_plan(20);
+
+	/* Buffer by byte tests */
+	evaluate_test(check_buffer_by_byte(USE_MMAP, MTE_SYNC_ERR),
+	"Check buffer correctness by byte with sync err mode and mmap memory\n");
+	evaluate_test(check_buffer_by_byte(USE_MMAP, MTE_ASYNC_ERR),
+	"Check buffer correctness by byte with async err mode and mmap memory\n");
+	evaluate_test(check_buffer_by_byte(USE_MPROTECT, MTE_SYNC_ERR),
+	"Check buffer correctness by byte with sync err mode and mmap/mprotect memory\n");
+	evaluate_test(check_buffer_by_byte(USE_MPROTECT, MTE_ASYNC_ERR),
+	"Check buffer correctness by byte with async err mode and mmap/mprotect memory\n");
+
+	/* Check buffer underflow with underflow size as 16 */
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_SYNC_ERR, MT_GRANULE_SIZE),
+	"Check buffer write underflow by byte with sync mode and mmap memory\n");
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, MT_GRANULE_SIZE),
+	"Check buffer write underflow by byte with async mode and mmap memory\n");
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_NONE_ERR, MT_GRANULE_SIZE),
+	"Check buffer write underflow by byte with tag check fault ignore and mmap memory\n");
+
+	/* Check buffer underflow with underflow size as page size */
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_SYNC_ERR, page_size),
+	"Check buffer write underflow by byte with sync mode and mmap memory\n");
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, page_size),
+	"Check buffer write underflow by byte with async mode and mmap memory\n");
+	evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_NONE_ERR, page_size),
+	"Check buffer write underflow by byte with tag check fault ignore and mmap memory\n");
+
+	/* Check buffer overflow with overflow size as 16 */
+	evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_SYNC_ERR, MT_GRANULE_SIZE),
+	"Check buffer write overflow by byte with sync mode and mmap memory\n");
+	evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, MT_GRANULE_SIZE),
+	"Check buffer write overflow by byte with async mode and mmap memory\n");
+	evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_NONE_ERR, MT_GRANULE_SIZE),
+	"Check buffer write overflow by byte with tag fault ignore mode and mmap memory\n");
+
+	/* Buffer by block tests */
+	evaluate_test(check_buffer_by_block(USE_MMAP, MTE_SYNC_ERR),
+	"Check buffer write correctness by block with sync mode and mmap memory\n");
+	evaluate_test(check_buffer_by_block(USE_MMAP, MTE_ASYNC_ERR),
+	"Check buffer write correctness by block with async mode and mmap memory\n");
+	evaluate_test(check_buffer_by_block(USE_MMAP, MTE_NONE_ERR),
+	"Check buffer write correctness by block with tag fault ignore and mmap memory\n");
+
+	/* Initial tags are supposed to be 0 */
+	evaluate_test(check_memory_initial_tags(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
+	"Check initial tags with private mapping, sync error mode and mmap memory\n");
+	evaluate_test(check_memory_initial_tags(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE),
+	"Check initial tags with private mapping, sync error mode and mmap/mprotect memory\n");
+	evaluate_test(check_memory_initial_tags(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
+	"Check initial tags with shared mapping, sync error mode and mmap memory\n");
+	evaluate_test(check_memory_initial_tags(USE_MPROTECT, MTE_SYNC_ERR, MAP_SHARED),
+	"Check initial tags with shared mapping, sync error mode and mmap/mprotect memory\n");
+
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_child_memory.c b/tools/testing/selftests/arm64/mte/check_child_memory.c
new file mode 100644
index 000000000000..5e97ee792e4d
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_child_memory.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define BUFFER_SIZE		(5 * MT_GRANULE_SIZE)
+#define RUNS			(MT_TAG_COUNT)
+#define UNDERFLOW		MT_GRANULE_SIZE
+#define OVERFLOW		MT_GRANULE_SIZE
+
+static size_t page_size;
+static int sizes[] = {
+	1, 537, 989, 1269, MT_GRANULE_SIZE - 1, MT_GRANULE_SIZE,
+	/* page size - 1*/ 0, /* page_size */ 0, /* page size + 1 */ 0
+};
+
+static int check_child_tag_inheritance(char *ptr, int size, int mode)
+{
+	int i, parent_tag, child_tag, fault, child_status;
+	pid_t child;
+
+	parent_tag = MT_FETCH_TAG((uintptr_t)ptr);
+	fault = 0;
+
+	child = fork();
+	if (child == -1) {
+		ksft_print_msg("FAIL: child process creation\n");
+		return KSFT_FAIL;
+	} else if (child == 0) {
+		mte_initialize_current_context(mode, (uintptr_t)ptr, size);
+		/* Do copy on write */
+		memset(ptr, '1', size);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == true) {
+			fault = 1;
+			goto check_child_tag_inheritance_err;
+		}
+		for (i = 0 ; i < size ; i += MT_GRANULE_SIZE) {
+			child_tag = MT_FETCH_TAG((uintptr_t)(mte_get_tag_address(ptr + i)));
+			if (parent_tag != child_tag) {
+				ksft_print_msg("FAIL: child mte tag mismatch\n");
+				fault = 1;
+				goto check_child_tag_inheritance_err;
+			}
+		}
+		mte_initialize_current_context(mode, (uintptr_t)ptr, -UNDERFLOW);
+		memset(ptr - UNDERFLOW, '2', UNDERFLOW);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == false) {
+			fault = 1;
+			goto check_child_tag_inheritance_err;
+		}
+		mte_initialize_current_context(mode, (uintptr_t)ptr, size + OVERFLOW);
+		memset(ptr + size, '3', OVERFLOW);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == false) {
+			fault = 1;
+			goto check_child_tag_inheritance_err;
+		}
+check_child_tag_inheritance_err:
+		_exit(fault);
+	}
+	/* Wait for child process to terminate */
+	wait(&child_status);
+	if (WIFEXITED(child_status))
+		fault = WEXITSTATUS(child_status);
+	else
+		fault = 1;
+	return (fault) ? KSFT_FAIL : KSFT_PASS;
+}
+
+static int check_child_memory_mapping(int mem_type, int mode, int mapping)
+{
+	char *ptr;
+	int run, result;
+	int item = ARRAY_SIZE(sizes);
+
+	item = ARRAY_SIZE(sizes);
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	for (run = 0; run < item; run++) {
+		ptr = (char *)mte_allocate_memory_tag_range(sizes[run], mem_type, mapping,
+							    UNDERFLOW, OVERFLOW);
+		if (check_allocated_memory_range(ptr, sizes[run], mem_type,
+						 UNDERFLOW, OVERFLOW) != KSFT_PASS)
+			return KSFT_FAIL;
+		result = check_child_tag_inheritance(ptr, sizes[run], mode);
+		mte_free_memory_tag_range((void *)ptr, sizes[run], mem_type, UNDERFLOW, OVERFLOW);
+		if (result == KSFT_FAIL)
+			return result;
+	}
+	return KSFT_PASS;
+}
+
+static int check_child_file_mapping(int mem_type, int mode, int mapping)
+{
+	char *ptr, *map_ptr;
+	int run, fd, map_size, result = KSFT_PASS;
+	int total = ARRAY_SIZE(sizes);
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	for (run = 0; run < total; run++) {
+		fd = create_temp_file();
+		if (fd == -1)
+			return KSFT_FAIL;
+
+		map_size = sizes[run] + OVERFLOW + UNDERFLOW;
+		map_ptr = (char *)mte_allocate_file_memory(map_size, mem_type, mapping, false, fd);
+		if (check_allocated_memory(map_ptr, map_size, mem_type, false) != KSFT_PASS) {
+			close(fd);
+			return KSFT_FAIL;
+		}
+		ptr = map_ptr + UNDERFLOW;
+		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[run]);
+		/* Only mte enabled memory will allow tag insertion */
+		ptr = mte_insert_tags((void *)ptr, sizes[run]);
+		if (!ptr || cur_mte_cxt.fault_valid == true) {
+			ksft_print_msg("FAIL: Insert tags on file based memory\n");
+			munmap((void *)map_ptr, map_size);
+			close(fd);
+			return KSFT_FAIL;
+		}
+		result = check_child_tag_inheritance(ptr, sizes[run], mode);
+		mte_clear_tags((void *)ptr, sizes[run]);
+		munmap((void *)map_ptr, map_size);
+		close(fd);
+		if (result != KSFT_PASS)
+			return KSFT_FAIL;
+	}
+	return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+	int item = ARRAY_SIZE(sizes);
+
+	page_size = getpagesize();
+	if (!page_size) {
+		ksft_print_msg("ERR: Unable to get page size\n");
+		return KSFT_FAIL;
+	}
+	sizes[item - 3] = page_size - 1;
+	sizes[item - 2] = page_size;
+	sizes[item - 1] = page_size + 1;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	/* Register SIGSEGV handler */
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+	mte_register_signal(SIGBUS, mte_default_handler, false);
+
+	/* Set test plan */
+	ksft_set_plan(12);
+
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
+		"Check child anonymous memory with private mapping, precise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
+		"Check child anonymous memory with shared mapping, precise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_PRIVATE),
+		"Check child anonymous memory with private mapping, imprecise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_SHARED),
+		"Check child anonymous memory with shared mapping, imprecise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE),
+		"Check child anonymous memory with private mapping, precise mode and mmap/mprotect memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_SHARED),
+		"Check child anonymous memory with shared mapping, precise mode and mmap/mprotect memory\n");
+
+	evaluate_test(check_child_file_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
+		"Check child file memory with private mapping, precise mode and mmap memory\n");
+	evaluate_test(check_child_file_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
+		"Check child file memory with shared mapping, precise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_PRIVATE),
+		"Check child file memory with private mapping, imprecise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_SHARED),
+		"Check child file memory with shared mapping, imprecise mode and mmap memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE),
+		"Check child file memory with private mapping, precise mode and mmap/mprotect memory\n");
+	evaluate_test(check_child_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_SHARED),
+		"Check child file memory with shared mapping, precise mode and mmap/mprotect memory\n");
+
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c b/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c
new file mode 100644
index 000000000000..325bca0de0f6
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <sys/auxv.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+
+#include "mte_def.h"
+
+#define NUM_ITERATIONS		1024
+#define MAX_THREADS		5
+#define THREAD_ITERATIONS	1000
+
+void *execute_thread(void *x)
+{
+	pid_t pid = *((pid_t *)x);
+	pid_t tid = gettid();
+	uint64_t prctl_tag_mask;
+	uint64_t prctl_set;
+	uint64_t prctl_get;
+	uint64_t prctl_tcf;
+
+	srand(time(NULL) ^ (pid << 16) ^ (tid << 16));
+
+	prctl_tag_mask = rand() & 0xffff;
+
+	if (prctl_tag_mask % 2)
+		prctl_tcf = PR_MTE_TCF_SYNC;
+	else
+		prctl_tcf = PR_MTE_TCF_ASYNC;
+
+	prctl_set = PR_TAGGED_ADDR_ENABLE | prctl_tcf | (prctl_tag_mask << PR_MTE_TAG_SHIFT);
+
+	for (int j = 0; j < THREAD_ITERATIONS; j++) {
+		if (prctl(PR_SET_TAGGED_ADDR_CTRL, prctl_set, 0, 0, 0)) {
+			perror("prctl() failed");
+			goto fail;
+		}
+
+		prctl_get = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0);
+
+		if (prctl_set != prctl_get) {
+			ksft_print_msg("Error: prctl_set: 0x%lx != prctl_get: 0x%lx\n",
+						prctl_set, prctl_get);
+			goto fail;
+		}
+	}
+
+	return (void *)KSFT_PASS;
+
+fail:
+	return (void *)KSFT_FAIL;
+}
+
+int execute_test(pid_t pid)
+{
+	pthread_t thread_id[MAX_THREADS];
+	int thread_data[MAX_THREADS];
+
+	for (int i = 0; i < MAX_THREADS; i++)
+		pthread_create(&thread_id[i], NULL,
+			       execute_thread, (void *)&pid);
+
+	for (int i = 0; i < MAX_THREADS; i++)
+		pthread_join(thread_id[i], (void *)&thread_data[i]);
+
+	for (int i = 0; i < MAX_THREADS; i++)
+		if (thread_data[i] == KSFT_FAIL)
+			return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+int mte_gcr_fork_test(void)
+{
+	pid_t pid;
+	int results[NUM_ITERATIONS];
+	pid_t cpid;
+	int res;
+
+	for (int i = 0; i < NUM_ITERATIONS; i++) {
+		pid = fork();
+
+		if (pid < 0)
+			return KSFT_FAIL;
+
+		if (pid == 0) {
+			cpid = getpid();
+
+			res = execute_test(cpid);
+
+			exit(res);
+		}
+	}
+
+	for (int i = 0; i < NUM_ITERATIONS; i++) {
+		wait(&res);
+
+		if (WIFEXITED(res))
+			results[i] = WEXITSTATUS(res);
+		else
+			--i;
+	}
+
+	for (int i = 0; i < NUM_ITERATIONS; i++)
+		if (results[i] == KSFT_FAIL)
+			return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	ksft_set_plan(1);
+
+	evaluate_test(mte_gcr_fork_test(),
+		"Verify that GCR_EL1 is set correctly on context switch\n");
+
+	mte_restore_setup();
+	ksft_print_cnts();
+
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_hugetlb_options.c b/tools/testing/selftests/arm64/mte/check_hugetlb_options.c
new file mode 100644
index 000000000000..aad1234c7e0f
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_hugetlb_options.c
@@ -0,0 +1,296 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2024 Ampere Computing LLC
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define TAG_CHECK_ON		0
+#define TAG_CHECK_OFF		1
+
+static unsigned long default_huge_page_size(void)
+{
+	unsigned long hps = 0;
+	char *line = NULL;
+	size_t linelen = 0;
+	FILE *f = fopen("/proc/meminfo", "r");
+
+	if (!f)
+		return 0;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "Hugepagesize:       %lu kB", &hps) == 1) {
+			hps <<= 10;
+			break;
+		}
+	}
+
+	free(line);
+	fclose(f);
+	return hps;
+}
+
+static bool is_hugetlb_allocated(void)
+{
+	unsigned long hps = 0;
+	char *line = NULL;
+	size_t linelen = 0;
+	FILE *f = fopen("/proc/meminfo", "r");
+
+	if (!f)
+		return false;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "Hugetlb:       %lu kB", &hps) == 1) {
+			hps <<= 10;
+			break;
+		}
+	}
+
+	free(line);
+	fclose(f);
+
+	if (hps > 0)
+		return true;
+
+	return false;
+}
+
+static void write_sysfs(char *str, unsigned long val)
+{
+	FILE *f;
+
+	f = fopen(str, "w");
+	if (!f) {
+		ksft_print_msg("ERR: missing %s\n", str);
+		return;
+	}
+	fprintf(f, "%lu", val);
+	fclose(f);
+}
+
+static void allocate_hugetlb()
+{
+	write_sysfs("/proc/sys/vm/nr_hugepages", 2);
+}
+
+static void free_hugetlb()
+{
+	write_sysfs("/proc/sys/vm/nr_hugepages", 0);
+}
+
+static int check_child_tag_inheritance(char *ptr, int size, int mode)
+{
+	int i, parent_tag, child_tag, fault, child_status;
+	pid_t child;
+
+	parent_tag = MT_FETCH_TAG((uintptr_t)ptr);
+	fault = 0;
+
+	child = fork();
+	if (child == -1) {
+		ksft_print_msg("FAIL: child process creation\n");
+		return KSFT_FAIL;
+	} else if (child == 0) {
+		mte_initialize_current_context(mode, (uintptr_t)ptr, size);
+		/* Do copy on write */
+		memset(ptr, '1', size);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == true) {
+			fault = 1;
+			goto check_child_tag_inheritance_err;
+		}
+		for (i = 0; i < size; i += MT_GRANULE_SIZE) {
+			child_tag = MT_FETCH_TAG((uintptr_t)(mte_get_tag_address(ptr + i)));
+			if (parent_tag != child_tag) {
+				ksft_print_msg("FAIL: child mte tag (%d) mismatch\n", i);
+				fault = 1;
+				goto check_child_tag_inheritance_err;
+			}
+		}
+check_child_tag_inheritance_err:
+		_exit(fault);
+	}
+	/* Wait for child process to terminate */
+	wait(&child_status);
+	if (WIFEXITED(child_status))
+		fault = WEXITSTATUS(child_status);
+	else
+		fault = 1;
+	return (fault) ? KSFT_FAIL : KSFT_PASS;
+}
+
+static int check_mte_memory(char *ptr, int size, int mode, int tag_check)
+{
+	mte_initialize_current_context(mode, (uintptr_t)ptr, size);
+	memset(ptr, '1', size);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid == true)
+		return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+static int check_hugetlb_memory_mapping(int mem_type, int mode, int mapping, int tag_check)
+{
+	char *ptr, *map_ptr;
+	int result;
+	unsigned long map_size;
+
+	map_size = default_huge_page_size();
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	map_ptr = (char *)mte_allocate_memory(map_size, mem_type, mapping, false);
+	if (check_allocated_memory(map_ptr, map_size, mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	mte_initialize_current_context(mode, (uintptr_t)map_ptr, map_size);
+	/* Only mte enabled memory will allow tag insertion */
+	ptr = mte_insert_tags((void *)map_ptr, map_size);
+	if (!ptr || cur_mte_cxt.fault_valid == true) {
+		ksft_print_msg("FAIL: Insert tags on anonymous mmap memory\n");
+		munmap((void *)map_ptr, map_size);
+		return KSFT_FAIL;
+	}
+	result = check_mte_memory(ptr, map_size, mode, tag_check);
+	mte_clear_tags((void *)ptr, map_size);
+	mte_free_memory((void *)map_ptr, map_size, mem_type, false);
+	if (result == KSFT_FAIL)
+		return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+static int check_clear_prot_mte_flag(int mem_type, int mode, int mapping)
+{
+	char *map_ptr;
+	int prot_flag, result;
+	unsigned long map_size;
+
+	prot_flag = PROT_READ | PROT_WRITE;
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	map_size = default_huge_page_size();
+	map_ptr = (char *)mte_allocate_memory_tag_range(map_size, mem_type, mapping,
+							0, 0);
+	if (check_allocated_memory_range(map_ptr, map_size, mem_type,
+					 0, 0) != KSFT_PASS)
+		return KSFT_FAIL;
+	/* Try to clear PROT_MTE property and verify it by tag checking */
+	if (mprotect(map_ptr, map_size, prot_flag)) {
+		mte_free_memory_tag_range((void *)map_ptr, map_size, mem_type,
+					  0, 0);
+		ksft_print_msg("FAIL: mprotect not ignoring clear PROT_MTE property\n");
+		return KSFT_FAIL;
+	}
+	result = check_mte_memory(map_ptr, map_size, mode, TAG_CHECK_ON);
+	mte_free_memory_tag_range((void *)map_ptr, map_size, mem_type, 0, 0);
+	if (result != KSFT_PASS)
+		return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+static int check_child_hugetlb_memory_mapping(int mem_type, int mode, int mapping)
+{
+	char *ptr;
+	int result;
+	unsigned long map_size;
+
+	map_size = default_huge_page_size();
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	ptr = (char *)mte_allocate_memory_tag_range(map_size, mem_type, mapping,
+						    0, 0);
+	if (check_allocated_memory_range(ptr, map_size, mem_type,
+					 0, 0) != KSFT_PASS)
+		return KSFT_FAIL;
+	result = check_child_tag_inheritance(ptr, map_size, mode);
+	mte_free_memory_tag_range((void *)ptr, map_size, mem_type, 0, 0);
+	if (result == KSFT_FAIL)
+		return result;
+
+	return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+	void *map_ptr;
+	unsigned long map_size;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	/* Register signal handlers */
+	mte_register_signal(SIGBUS, mte_default_handler, false);
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+
+	allocate_hugetlb();
+
+	if (!is_hugetlb_allocated()) {
+		ksft_print_msg("ERR: Unable allocate hugetlb pages\n");
+		return KSFT_FAIL;
+	}
+
+	/* Check if MTE supports hugetlb mappings */
+	map_size = default_huge_page_size();
+	map_ptr = mmap(NULL, map_size, PROT_READ | PROT_MTE,
+		       MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+	if (map_ptr == MAP_FAILED)
+		ksft_exit_skip("PROT_MTE not supported with MAP_HUGETLB mappings\n");
+	else
+		munmap(map_ptr, map_size);
+
+	/* Set test plan */
+	ksft_set_plan(12);
+
+	mte_enable_pstate_tco();
+
+	evaluate_test(check_hugetlb_memory_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_OFF),
+	"Check hugetlb memory with private mapping, sync error mode, mmap memory and tag check off\n");
+
+	mte_disable_pstate_tco();
+	evaluate_test(check_hugetlb_memory_mapping(USE_MMAP, MTE_NONE_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_OFF),
+	"Check hugetlb memory with private mapping, no error mode, mmap memory and tag check off\n");
+
+	evaluate_test(check_hugetlb_memory_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_ON),
+	"Check hugetlb memory with private mapping, sync error mode, mmap memory and tag check on\n");
+	evaluate_test(check_hugetlb_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_ON),
+	"Check hugetlb memory with private mapping, sync error mode, mmap/mprotect memory and tag check on\n");
+	evaluate_test(check_hugetlb_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_ON),
+	"Check hugetlb memory with private mapping, async error mode, mmap memory and tag check on\n");
+	evaluate_test(check_hugetlb_memory_mapping(USE_MPROTECT, MTE_ASYNC_ERR, MAP_PRIVATE | MAP_HUGETLB, TAG_CHECK_ON),
+	"Check hugetlb memory with private mapping, async error mode, mmap/mprotect memory and tag check on\n");
+
+	evaluate_test(check_clear_prot_mte_flag(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+	"Check clear PROT_MTE flags with private mapping, sync error mode and mmap memory\n");
+	evaluate_test(check_clear_prot_mte_flag(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+	"Check clear PROT_MTE flags with private mapping and sync error mode and mmap/mprotect memory\n");
+
+	evaluate_test(check_child_hugetlb_memory_mapping(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+		"Check child hugetlb memory with private mapping, sync error mode and mmap memory\n");
+	evaluate_test(check_child_hugetlb_memory_mapping(USE_MMAP, MTE_ASYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+		"Check child hugetlb memory with private mapping, async error mode and mmap memory\n");
+	evaluate_test(check_child_hugetlb_memory_mapping(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+		"Check child hugetlb memory with private mapping, sync error mode and mmap/mprotect memory\n");
+	evaluate_test(check_child_hugetlb_memory_mapping(USE_MPROTECT, MTE_ASYNC_ERR, MAP_PRIVATE | MAP_HUGETLB),
+		"Check child hugetlb memory with private mapping, async error mode and mmap/mprotect memory\n");
+
+	mte_restore_setup();
+	free_hugetlb();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_ksm_options.c b/tools/testing/selftests/arm64/mte/check_ksm_options.c
new file mode 100644
index 000000000000..0cf5faef1724
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_ksm_options.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define TEST_UNIT	10
+#define PATH_KSM	"/sys/kernel/mm/ksm/"
+#define MAX_LOOP	4
+
+static size_t page_sz;
+static unsigned long ksm_sysfs[5];
+
+static unsigned long read_sysfs(char *str)
+{
+	FILE *f;
+	unsigned long val = 0;
+
+	f = fopen(str, "r");
+	if (!f) {
+		ksft_print_msg("ERR: missing %s\n", str);
+		return 0;
+	}
+	if (fscanf(f, "%lu", &val) != 1) {
+		ksft_print_msg("ERR: parsing %s\n", str);
+		val = 0;
+	}
+	fclose(f);
+	return val;
+}
+
+static void write_sysfs(char *str, unsigned long val)
+{
+	FILE *f;
+
+	f = fopen(str, "w");
+	if (!f) {
+		ksft_print_msg("ERR: missing %s\n", str);
+		return;
+	}
+	fprintf(f, "%lu", val);
+	fclose(f);
+}
+
+static void mte_ksm_setup(void)
+{
+	ksm_sysfs[0] = read_sysfs(PATH_KSM "merge_across_nodes");
+	write_sysfs(PATH_KSM "merge_across_nodes", 1);
+	ksm_sysfs[1] = read_sysfs(PATH_KSM "sleep_millisecs");
+	write_sysfs(PATH_KSM "sleep_millisecs", 0);
+	ksm_sysfs[2] = read_sysfs(PATH_KSM "run");
+	write_sysfs(PATH_KSM "run", 1);
+	ksm_sysfs[3] = read_sysfs(PATH_KSM "max_page_sharing");
+	write_sysfs(PATH_KSM "max_page_sharing", ksm_sysfs[3] + TEST_UNIT);
+	ksm_sysfs[4] = read_sysfs(PATH_KSM "pages_to_scan");
+	write_sysfs(PATH_KSM "pages_to_scan", ksm_sysfs[4] + TEST_UNIT);
+}
+
+static void mte_ksm_restore(void)
+{
+	write_sysfs(PATH_KSM "merge_across_nodes", ksm_sysfs[0]);
+	write_sysfs(PATH_KSM "sleep_millisecs", ksm_sysfs[1]);
+	write_sysfs(PATH_KSM "run", ksm_sysfs[2]);
+	write_sysfs(PATH_KSM "max_page_sharing", ksm_sysfs[3]);
+	write_sysfs(PATH_KSM "pages_to_scan", ksm_sysfs[4]);
+}
+
+static void mte_ksm_scan(void)
+{
+	int cur_count = read_sysfs(PATH_KSM "full_scans");
+	int scan_count = cur_count + 1;
+	int max_loop_count = MAX_LOOP;
+
+	while ((cur_count < scan_count) && max_loop_count) {
+		sleep(1);
+		cur_count = read_sysfs(PATH_KSM "full_scans");
+		max_loop_count--;
+	}
+#ifdef DEBUG
+	ksft_print_msg("INFO: pages_shared=%lu pages_sharing=%lu\n",
+			read_sysfs(PATH_KSM "pages_shared"),
+			read_sysfs(PATH_KSM "pages_sharing"));
+#endif
+}
+
+static int check_madvise_options(int mem_type, int mode, int mapping)
+{
+	char *ptr;
+	int err, ret;
+
+	err = KSFT_FAIL;
+	if (access(PATH_KSM, F_OK) == -1) {
+		ksft_print_msg("ERR: Kernel KSM config not enabled\n");
+		return err;
+	}
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	ptr = mte_allocate_memory(TEST_UNIT * page_sz, mem_type, mapping, true);
+	if (check_allocated_memory(ptr, TEST_UNIT * page_sz, mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	/* Insert same data in all the pages */
+	memset(ptr, 'A', TEST_UNIT * page_sz);
+	ret = madvise(ptr, TEST_UNIT * page_sz, MADV_MERGEABLE);
+	if (ret) {
+		ksft_print_msg("ERR: madvise failed to set MADV_UNMERGEABLE\n");
+		goto madvise_err;
+	}
+	mte_ksm_scan();
+	/* Tagged pages should not merge */
+	if ((read_sysfs(PATH_KSM "pages_shared") < 1) ||
+	    (read_sysfs(PATH_KSM "pages_sharing") < (TEST_UNIT - 1)))
+		err = KSFT_PASS;
+madvise_err:
+	mte_free_memory(ptr, TEST_UNIT * page_sz, mem_type, true);
+	return err;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+	page_sz = getpagesize();
+	if (!page_sz) {
+		ksft_print_msg("ERR: Unable to get page size\n");
+		return KSFT_FAIL;
+	}
+	/* Register signal handlers */
+	mte_register_signal(SIGBUS, mte_default_handler, false);
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+
+	/* Set test plan */
+	ksft_set_plan(4);
+
+	/* Enable KSM */
+	mte_ksm_setup();
+
+	evaluate_test(check_madvise_options(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
+		"Check KSM mte page merge for private mapping, sync mode and mmap memory\n");
+	evaluate_test(check_madvise_options(USE_MMAP, MTE_ASYNC_ERR, MAP_PRIVATE),
+		"Check KSM mte page merge for private mapping, async mode and mmap memory\n");
+	evaluate_test(check_madvise_options(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
+		"Check KSM mte page merge for shared mapping, sync mode and mmap memory\n");
+	evaluate_test(check_madvise_options(USE_MMAP, MTE_ASYNC_ERR, MAP_SHARED),
+		"Check KSM mte page merge for shared mapping, async mode and mmap memory\n");
+
+	mte_ksm_restore();
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_mmap_options.c b/tools/testing/selftests/arm64/mte/check_mmap_options.c
new file mode 100644
index 000000000000..c100af3012cb
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_mmap_options.c
@@ -0,0 +1,1009 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define RUNS			(MT_TAG_COUNT)
+#define UNDERFLOW		MT_GRANULE_SIZE
+#define OVERFLOW		MT_GRANULE_SIZE
+#define TAG_CHECK_ON		0
+#define TAG_CHECK_OFF		1
+#define ATAG_CHECK_ON		1
+#define ATAG_CHECK_OFF		0
+
+#define TEST_NAME_MAX		256
+
+enum mte_mem_check_type {
+	CHECK_ANON_MEM = 0,
+	CHECK_FILE_MEM = 1,
+	CHECK_CLEAR_PROT_MTE = 2,
+};
+
+enum mte_tag_op_type {
+	TAG_OP_ALL = 0,
+	TAG_OP_STONLY = 1,
+};
+
+struct check_mmap_testcase {
+	int check_type;
+	int mem_type;
+	int mte_sync;
+	int mapping;
+	int tag_check;
+	int atag_check;
+	int tag_op;
+	bool enable_tco;
+};
+
+#define TAG_OP_ALL		0
+#define TAG_OP_STONLY		1
+
+static size_t page_size;
+static int sizes[] = {
+	1, 537, 989, 1269, MT_GRANULE_SIZE - 1, MT_GRANULE_SIZE,
+	/* page size - 1*/ 0, /* page_size */ 0, /* page size + 1 */ 0
+};
+
+static int check_mte_memory(char *ptr, int size, int mode,
+		int tag_check,int atag_check, int tag_op)
+{
+	char buf[MT_GRANULE_SIZE];
+
+	if (!mtefar_support && atag_check == ATAG_CHECK_ON)
+		return KSFT_SKIP;
+
+	if (atag_check == ATAG_CHECK_ON)
+		ptr = mte_insert_atag(ptr);
+
+	mte_initialize_current_context(mode, (uintptr_t)ptr, size);
+	memset(ptr, '1', size);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid == true)
+		return KSFT_FAIL;
+
+	mte_initialize_current_context(mode, (uintptr_t)ptr, -UNDERFLOW);
+	memset(ptr - UNDERFLOW, '2', UNDERFLOW);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid == false && tag_check == TAG_CHECK_ON)
+		return KSFT_FAIL;
+	if (cur_mte_cxt.fault_valid == true && tag_check == TAG_CHECK_OFF)
+		return KSFT_FAIL;
+
+	mte_initialize_current_context(mode, (uintptr_t)ptr, size + OVERFLOW);
+	memset(ptr + size, '3', OVERFLOW);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid == false && tag_check == TAG_CHECK_ON)
+		return KSFT_FAIL;
+	if (cur_mte_cxt.fault_valid == true && tag_check == TAG_CHECK_OFF)
+		return KSFT_FAIL;
+
+	if (tag_op == TAG_OP_STONLY) {
+		mte_initialize_current_context(mode, (uintptr_t)ptr, -UNDERFLOW);
+		memcpy(buf, ptr - UNDERFLOW, MT_GRANULE_SIZE);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == true)
+			return KSFT_FAIL;
+
+		mte_initialize_current_context(mode, (uintptr_t)ptr, size + OVERFLOW);
+		memcpy(buf, ptr + size, MT_GRANULE_SIZE);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid == true)
+			return KSFT_FAIL;
+	}
+
+	return KSFT_PASS;
+}
+
+static int check_anonymous_memory_mapping(int mem_type, int mode, int mapping,
+		int tag_check, int atag_check, int tag_op)
+{
+	char *ptr, *map_ptr;
+	int run, result, map_size;
+	int item = ARRAY_SIZE(sizes);
+
+	if (tag_op == TAG_OP_STONLY && !mtestonly_support)
+		return KSFT_SKIP;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, tag_op);
+	for (run = 0; run < item; run++) {
+		map_size = sizes[run] + OVERFLOW + UNDERFLOW;
+		map_ptr = (char *)mte_allocate_memory(map_size, mem_type, mapping, false);
+		if (check_allocated_memory(map_ptr, map_size, mem_type, false) != KSFT_PASS)
+			return KSFT_FAIL;
+
+		ptr = map_ptr + UNDERFLOW;
+		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[run]);
+		/* Only mte enabled memory will allow tag insertion */
+		ptr = mte_insert_tags((void *)ptr, sizes[run]);
+		if (!ptr || cur_mte_cxt.fault_valid == true) {
+			ksft_print_msg("FAIL: Insert tags on anonymous mmap memory\n");
+			munmap((void *)map_ptr, map_size);
+			return KSFT_FAIL;
+		}
+		result = check_mte_memory(ptr, sizes[run], mode, tag_check, atag_check, tag_op);
+		mte_clear_tags((void *)ptr, sizes[run]);
+		mte_free_memory((void *)map_ptr, map_size, mem_type, false);
+		if (result != KSFT_PASS)
+			return result;
+	}
+	return KSFT_PASS;
+}
+
+static int check_file_memory_mapping(int mem_type, int mode, int mapping,
+		int tag_check, int atag_check, int tag_op)
+{
+	char *ptr, *map_ptr;
+	int run, fd, map_size;
+	int total = ARRAY_SIZE(sizes);
+	int result = KSFT_PASS;
+
+	if (tag_op == TAG_OP_STONLY && !mtestonly_support)
+		return KSFT_SKIP;
+
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, tag_op);
+	for (run = 0; run < total; run++) {
+		fd = create_temp_file();
+		if (fd == -1)
+			return KSFT_FAIL;
+
+		map_size = sizes[run] + UNDERFLOW + OVERFLOW;
+		map_ptr = (char *)mte_allocate_file_memory(map_size, mem_type, mapping, false, fd);
+		if (check_allocated_memory(map_ptr, map_size, mem_type, false) != KSFT_PASS) {
+			close(fd);
+			return KSFT_FAIL;
+		}
+		ptr = map_ptr + UNDERFLOW;
+		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[run]);
+		/* Only mte enabled memory will allow tag insertion */
+		ptr = mte_insert_tags((void *)ptr, sizes[run]);
+		if (!ptr || cur_mte_cxt.fault_valid == true) {
+			ksft_print_msg("FAIL: Insert tags on file based memory\n");
+			munmap((void *)map_ptr, map_size);
+			close(fd);
+			return KSFT_FAIL;
+		}
+		result = check_mte_memory(ptr, sizes[run], mode, tag_check, atag_check, tag_op);
+		mte_clear_tags((void *)ptr, sizes[run]);
+		munmap((void *)map_ptr, map_size);
+		close(fd);
+		if (result != KSFT_PASS)
+			return result;
+	}
+	return KSFT_PASS;
+}
+
+static int check_clear_prot_mte_flag(int mem_type, int mode, int mapping, int atag_check)
+{
+	char *ptr, *map_ptr;
+	int run, prot_flag, result, fd, map_size;
+	int total = ARRAY_SIZE(sizes);
+
+	prot_flag = PROT_READ | PROT_WRITE;
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	for (run = 0; run < total; run++) {
+		map_size = sizes[run] + OVERFLOW + UNDERFLOW;
+		ptr = (char *)mte_allocate_memory_tag_range(sizes[run], mem_type, mapping,
+							    UNDERFLOW, OVERFLOW);
+		if (check_allocated_memory_range(ptr, sizes[run], mem_type,
+						 UNDERFLOW, OVERFLOW) != KSFT_PASS)
+			return KSFT_FAIL;
+		map_ptr = ptr - UNDERFLOW;
+		/* Try to clear PROT_MTE property and verify it by tag checking */
+		if (mprotect(map_ptr, map_size, prot_flag)) {
+			mte_free_memory_tag_range((void *)ptr, sizes[run], mem_type,
+						  UNDERFLOW, OVERFLOW);
+			ksft_print_msg("FAIL: mprotect not ignoring clear PROT_MTE property\n");
+			return KSFT_FAIL;
+		}
+		result = check_mte_memory(ptr, sizes[run], mode, TAG_CHECK_ON, atag_check, TAG_OP_ALL);
+		mte_free_memory_tag_range((void *)ptr, sizes[run], mem_type, UNDERFLOW, OVERFLOW);
+		if (result != KSFT_PASS)
+			return result;
+
+		fd = create_temp_file();
+		if (fd == -1)
+			return KSFT_FAIL;
+		ptr = (char *)mte_allocate_file_memory_tag_range(sizes[run], mem_type, mapping,
+								 UNDERFLOW, OVERFLOW, fd);
+		if (check_allocated_memory_range(ptr, sizes[run], mem_type,
+						 UNDERFLOW, OVERFLOW) != KSFT_PASS) {
+			close(fd);
+			return KSFT_FAIL;
+		}
+		map_ptr = ptr - UNDERFLOW;
+		/* Try to clear PROT_MTE property and verify it by tag checking */
+		if (mprotect(map_ptr, map_size, prot_flag)) {
+			ksft_print_msg("FAIL: mprotect not ignoring clear PROT_MTE property\n");
+			mte_free_memory_tag_range((void *)ptr, sizes[run], mem_type,
+						  UNDERFLOW, OVERFLOW);
+			close(fd);
+			return KSFT_FAIL;
+		}
+		result = check_mte_memory(ptr, sizes[run], mode, TAG_CHECK_ON, atag_check, TAG_OP_ALL);
+		mte_free_memory_tag_range((void *)ptr, sizes[run], mem_type, UNDERFLOW, OVERFLOW);
+		close(fd);
+		if (result != KSFT_PASS)
+			return result;
+	}
+	return KSFT_PASS;
+}
+
+const char *format_test_name(struct check_mmap_testcase *tc)
+{
+	static char test_name[TEST_NAME_MAX];
+	const char *check_type_str;
+	const char *mem_type_str;
+	const char *sync_str;
+	const char *mapping_str;
+	const char *tag_check_str;
+	const char *atag_check_str;
+	const char *tag_op_str;
+
+	switch (tc->check_type) {
+	case CHECK_ANON_MEM:
+		check_type_str = "anonymous memory";
+		break;
+	case CHECK_FILE_MEM:
+		check_type_str = "file memory";
+		break;
+	case CHECK_CLEAR_PROT_MTE:
+		check_type_str = "clear PROT_MTE flags";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (tc->mem_type) {
+	case USE_MMAP:
+		mem_type_str = "mmap";
+		break;
+	case USE_MPROTECT:
+		mem_type_str = "mmap/mprotect";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (tc->mte_sync) {
+	case MTE_NONE_ERR:
+		sync_str = "no error";
+		break;
+	case MTE_SYNC_ERR:
+		sync_str = "sync error";
+		break;
+	case MTE_ASYNC_ERR:
+		sync_str = "async error";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (tc->mapping) {
+	case MAP_SHARED:
+		mapping_str = "shared";
+		break;
+	case MAP_PRIVATE:
+		mapping_str = "private";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (tc->tag_check) {
+	case TAG_CHECK_ON:
+		tag_check_str = "tag check on";
+		break;
+	case TAG_CHECK_OFF:
+		tag_check_str = "tag check off";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (tc->atag_check) {
+	case ATAG_CHECK_ON:
+		atag_check_str = "with address tag [63:60]";
+		break;
+	case ATAG_CHECK_OFF:
+		atag_check_str = "without address tag [63:60]";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	snprintf(test_name, sizeof(test_name),
+	         "Check %s with %s mapping, %s mode, %s memory and %s (%s)\n",
+	         check_type_str, mapping_str, sync_str, mem_type_str,
+	         tag_check_str, atag_check_str);
+
+	switch (tc->tag_op) {
+	case TAG_OP_ALL:
+		tag_op_str = "";
+		break;
+	case TAG_OP_STONLY:
+		tag_op_str = " / store-only";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	snprintf(test_name, TEST_NAME_MAX,
+	         "Check %s with %s mapping, %s mode, %s memory and %s (%s%s)\n",
+	         check_type_str, mapping_str, sync_str, mem_type_str,
+	         tag_check_str, atag_check_str, tag_op_str);
+
+	return test_name;
+}
+
+int main(int argc, char *argv[])
+{
+	int err, i;
+	int item = ARRAY_SIZE(sizes);
+	struct check_mmap_testcase test_cases[]= {
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_OFF,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = true,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_OFF,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = true,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_NONE_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_OFF,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_NONE_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_OFF,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_CLEAR_PROT_MTE,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_CLEAR_PROT_MTE,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_OFF,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_ANON_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_SHARED,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_FILE_MEM,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_ASYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_STONLY,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_CLEAR_PROT_MTE,
+			.mem_type = USE_MMAP,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+		{
+			.check_type = CHECK_CLEAR_PROT_MTE,
+			.mem_type = USE_MPROTECT,
+			.mte_sync = MTE_SYNC_ERR,
+			.mapping = MAP_PRIVATE,
+			.tag_check = TAG_CHECK_ON,
+			.atag_check = ATAG_CHECK_ON,
+			.tag_op = TAG_OP_ALL,
+			.enable_tco = false,
+		},
+	};
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+	page_size = getpagesize();
+	if (!page_size) {
+		ksft_print_msg("ERR: Unable to get page size\n");
+		return KSFT_FAIL;
+	}
+	sizes[item - 3] = page_size - 1;
+	sizes[item - 2] = page_size;
+	sizes[item - 1] = page_size + 1;
+
+	/* Set test plan */
+	ksft_set_plan(ARRAY_SIZE(test_cases));
+
+	for (i = 0 ; i < ARRAY_SIZE(test_cases); i++) {
+		/* Register signal handlers */
+		mte_register_signal(SIGBUS, mte_default_handler,
+				    test_cases[i].atag_check == ATAG_CHECK_ON);
+		mte_register_signal(SIGSEGV, mte_default_handler,
+				    test_cases[i].atag_check == ATAG_CHECK_ON);
+
+		if (test_cases[i].enable_tco)
+			mte_enable_pstate_tco();
+		else
+			mte_disable_pstate_tco();
+
+		switch (test_cases[i].check_type) {
+		case CHECK_ANON_MEM:
+			evaluate_test(check_anonymous_memory_mapping(test_cases[i].mem_type,
+								     test_cases[i].mte_sync,
+								     test_cases[i].mapping,
+								     test_cases[i].tag_check,
+								     test_cases[i].atag_check,
+								     test_cases[i].tag_op),
+				      format_test_name(&test_cases[i]));
+			break;
+		case CHECK_FILE_MEM:
+			evaluate_test(check_file_memory_mapping(test_cases[i].mem_type,
+							        test_cases[i].mte_sync,
+							        test_cases[i].mapping,
+							        test_cases[i].tag_check,
+							        test_cases[i].atag_check,
+								test_cases[i].tag_op),
+				      format_test_name(&test_cases[i]));
+			break;
+		case CHECK_CLEAR_PROT_MTE:
+			evaluate_test(check_clear_prot_mte_flag(test_cases[i].mem_type,
+							        test_cases[i].mte_sync,
+							        test_cases[i].mapping,
+							        test_cases[i].atag_check),
+				      format_test_name(&test_cases[i]));
+			break;
+		default:
+			exit(KSFT_FAIL);
+		}
+	}
+
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_prctl.c b/tools/testing/selftests/arm64/mte/check_prctl.c
new file mode 100644
index 000000000000..f7f320defa7b
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_prctl.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2022 ARM Limited
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+
+#include <asm/hwcap.h>
+
+#include "kselftest.h"
+
+#ifndef AT_HWCAP3
+#define AT_HWCAP3 29
+#endif
+
+static int set_tagged_addr_ctrl(int val)
+{
+	int ret;
+
+	ret = prctl(PR_SET_TAGGED_ADDR_CTRL, val, 0, 0, 0);
+	if (ret < 0)
+		ksft_print_msg("PR_SET_TAGGED_ADDR_CTRL: failed %d %d (%s)\n",
+			       ret, errno, strerror(errno));
+	return ret;
+}
+
+static int get_tagged_addr_ctrl(void)
+{
+	int ret;
+
+	ret = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0);
+	if (ret < 0)
+		ksft_print_msg("PR_GET_TAGGED_ADDR_CTRL failed: %d %d (%s)\n",
+			       ret, errno, strerror(errno));
+	return ret;
+}
+
+/*
+ * Read the current mode without having done any configuration, should
+ * run first.
+ */
+void check_basic_read(void)
+{
+	int ret;
+
+	ret = get_tagged_addr_ctrl();
+	if (ret < 0) {
+		ksft_test_result_fail("check_basic_read\n");
+		return;
+	}
+
+	if (ret & PR_MTE_TCF_SYNC)
+		ksft_print_msg("SYNC enabled\n");
+	if (ret & PR_MTE_TCF_ASYNC)
+		ksft_print_msg("ASYNC enabled\n");
+
+	/* Any configuration is valid */
+	ksft_test_result_pass("check_basic_read\n");
+}
+
+/*
+ * Attempt to set a specified combination of modes.
+ */
+void set_mode_test(const char *name, int hwcap2, int hwcap3, int mask)
+{
+	int ret;
+
+	if ((getauxval(AT_HWCAP2) & hwcap2) != hwcap2) {
+		ksft_test_result_skip("%s\n", name);
+		return;
+	}
+
+	if ((getauxval(AT_HWCAP3) & hwcap3) != hwcap3) {
+		ksft_test_result_skip("%s\n", name);
+		return;
+	}
+
+	ret = set_tagged_addr_ctrl(mask);
+	if (ret < 0) {
+		ksft_test_result_fail("%s\n", name);
+		return;
+	}
+
+	ret = get_tagged_addr_ctrl();
+	if (ret < 0) {
+		ksft_test_result_fail("%s\n", name);
+		return;
+	}
+
+	if ((ret & (PR_MTE_TCF_MASK | PR_MTE_STORE_ONLY)) == mask) {
+		ksft_test_result_pass("%s\n", name);
+	} else {
+		ksft_print_msg("Got %x, expected %x\n",
+			       (ret & (int)PR_MTE_TCF_MASK), mask);
+		ksft_test_result_fail("%s\n", name);
+	}
+}
+
+struct mte_mode {
+	int mask;
+	int hwcap2;
+	int hwcap3;
+	const char *name;
+} mte_modes[] = {
+	{ PR_MTE_TCF_NONE,                                        0,          0,                     "NONE"  },
+	{ PR_MTE_TCF_SYNC,                                        HWCAP2_MTE, 0,                     "SYNC"  },
+	{ PR_MTE_TCF_ASYNC,                                       HWCAP2_MTE, 0,                     "ASYNC" },
+	{ PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC,                     HWCAP2_MTE, 0,                     "SYNC+ASYNC"  },
+	{ PR_MTE_TCF_SYNC | PR_MTE_STORE_ONLY,                    HWCAP2_MTE, HWCAP3_MTE_STORE_ONLY, "SYNC+STONLY" },
+	{ PR_MTE_TCF_ASYNC | PR_MTE_STORE_ONLY,                   HWCAP2_MTE, HWCAP3_MTE_STORE_ONLY, "ASYNC+STONLY" },
+	{ PR_MTE_TCF_SYNC | PR_MTE_TCF_ASYNC | PR_MTE_STORE_ONLY, HWCAP2_MTE, HWCAP3_MTE_STORE_ONLY, "SYNC+ASYNC+STONLY" },
+};
+
+int main(void)
+{
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(mte_modes));
+
+	check_basic_read();
+	for (i = 0; i < ARRAY_SIZE(mte_modes); i++)
+		set_mode_test(mte_modes[i].name, mte_modes[i].hwcap2, mte_modes[i].hwcap3,
+			      mte_modes[i].mask);
+
+	ksft_print_cnts();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_tags_inclusion.c b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c
new file mode 100644
index 000000000000..4b764f2a8185
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_tags_inclusion.c
@@ -0,0 +1,200 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define BUFFER_SIZE		(5 * MT_GRANULE_SIZE)
+#define RUNS			(MT_TAG_COUNT * 2)
+#define MTE_LAST_TAG_MASK	(0x7FFF)
+
+static int verify_mte_pointer_validity(char *ptr, int mode)
+{
+	mte_initialize_current_context(mode, (uintptr_t)ptr, BUFFER_SIZE);
+	/* Check the validity of the tagged pointer */
+	memset(ptr, '1', BUFFER_SIZE);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid) {
+		ksft_print_msg("Unexpected fault recorded for %p-%p in mode %x\n",
+			       ptr, ptr + BUFFER_SIZE, mode);
+		return KSFT_FAIL;
+	}
+	/* Proceed further for nonzero tags */
+	if (!MT_FETCH_TAG((uintptr_t)ptr))
+		return KSFT_PASS;
+	mte_initialize_current_context(mode, (uintptr_t)ptr, BUFFER_SIZE + 1);
+	/* Check the validity outside the range */
+	ptr[BUFFER_SIZE] = '2';
+	mte_wait_after_trig();
+	if (!cur_mte_cxt.fault_valid) {
+		ksft_print_msg("No valid fault recorded for %p in mode %x\n",
+			       ptr, mode);
+		return KSFT_FAIL;
+	} else {
+		return KSFT_PASS;
+	}
+}
+
+static int check_single_included_tags(int mem_type, int mode)
+{
+	char *ptr;
+	int tag, run, ret, result = KSFT_PASS;
+
+	ptr = mte_allocate_memory(BUFFER_SIZE + MT_GRANULE_SIZE, mem_type, 0, false);
+	if (check_allocated_memory(ptr, BUFFER_SIZE + MT_GRANULE_SIZE,
+				   mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	for (tag = 0; (tag < MT_TAG_COUNT) && (result == KSFT_PASS); tag++) {
+		ret = mte_switch_mode(mode, MT_INCLUDE_VALID_TAG(tag), false);
+		if (ret != 0)
+			result = KSFT_FAIL;
+		/* Try to catch a excluded tag by a number of tries. */
+		for (run = 0; (run < RUNS) && (result == KSFT_PASS); run++) {
+			ptr = mte_insert_tags(ptr, BUFFER_SIZE);
+			/* Check tag value */
+			if (MT_FETCH_TAG((uintptr_t)ptr) == tag) {
+				ksft_print_msg("FAIL: wrong tag = 0x%lx with include mask=0x%x\n",
+					       MT_FETCH_TAG((uintptr_t)ptr),
+					       MT_INCLUDE_VALID_TAG(tag));
+				result = KSFT_FAIL;
+				break;
+			}
+			result = verify_mte_pointer_validity(ptr, mode);
+		}
+	}
+	mte_free_memory_tag_range(ptr, BUFFER_SIZE, mem_type, 0, MT_GRANULE_SIZE);
+	return result;
+}
+
+static int check_multiple_included_tags(int mem_type, int mode)
+{
+	char *ptr;
+	int tag, run, result = KSFT_PASS;
+	unsigned long excl_mask = 0;
+
+	ptr = mte_allocate_memory(BUFFER_SIZE + MT_GRANULE_SIZE, mem_type, 0, false);
+	if (check_allocated_memory(ptr, BUFFER_SIZE + MT_GRANULE_SIZE,
+				   mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	for (tag = 0; (tag < MT_TAG_COUNT - 1) && (result == KSFT_PASS); tag++) {
+		excl_mask |= 1 << tag;
+		mte_switch_mode(mode, MT_INCLUDE_VALID_TAGS(excl_mask), false);
+		/* Try to catch a excluded tag by a number of tries. */
+		for (run = 0; (run < RUNS) && (result == KSFT_PASS); run++) {
+			ptr = mte_insert_tags(ptr, BUFFER_SIZE);
+			/* Check tag value */
+			if (MT_FETCH_TAG((uintptr_t)ptr) < tag) {
+				ksft_print_msg("FAIL: wrong tag = 0x%lx with include mask=0x%lx\n",
+					       MT_FETCH_TAG((uintptr_t)ptr),
+					       MT_INCLUDE_VALID_TAGS(excl_mask));
+				result = KSFT_FAIL;
+				break;
+			}
+			result = verify_mte_pointer_validity(ptr, mode);
+		}
+	}
+	mte_free_memory_tag_range(ptr, BUFFER_SIZE, mem_type, 0, MT_GRANULE_SIZE);
+	return result;
+}
+
+static int check_all_included_tags(int mem_type, int mode)
+{
+	char *ptr;
+	int run, ret, result = KSFT_PASS;
+
+	ptr = mte_allocate_memory(BUFFER_SIZE + MT_GRANULE_SIZE, mem_type, 0, false);
+	if (check_allocated_memory(ptr, BUFFER_SIZE + MT_GRANULE_SIZE,
+				   mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	ret = mte_switch_mode(mode, MT_INCLUDE_TAG_MASK, false);
+	if (ret != 0)
+		return KSFT_FAIL;
+	/* Try to catch a excluded tag by a number of tries. */
+	for (run = 0; (run < RUNS) && (result == KSFT_PASS); run++) {
+		ptr = (char *)mte_insert_tags(ptr, BUFFER_SIZE);
+		/*
+		 * Here tag byte can be between 0x0 to 0xF (full allowed range)
+		 * so no need to match so just verify if it is writable.
+		 */
+		result = verify_mte_pointer_validity(ptr, mode);
+	}
+	mte_free_memory_tag_range(ptr, BUFFER_SIZE, mem_type, 0, MT_GRANULE_SIZE);
+	return result;
+}
+
+static int check_none_included_tags(int mem_type, int mode)
+{
+	char *ptr;
+	int run, ret;
+
+	ptr = mte_allocate_memory(BUFFER_SIZE, mem_type, 0, false);
+	if (check_allocated_memory(ptr, BUFFER_SIZE, mem_type, false) != KSFT_PASS)
+		return KSFT_FAIL;
+
+	ret = mte_switch_mode(mode, MT_EXCLUDE_TAG_MASK, false);
+	if (ret != 0)
+		return KSFT_FAIL;
+	/* Try to catch a excluded tag by a number of tries. */
+	for (run = 0; run < RUNS; run++) {
+		ptr = (char *)mte_insert_tags(ptr, BUFFER_SIZE);
+		/* Here all tags exluded so tag value generated should be 0 */
+		if (MT_FETCH_TAG((uintptr_t)ptr)) {
+			ksft_print_msg("FAIL: included tag value found\n");
+			mte_free_memory((void *)ptr, BUFFER_SIZE, mem_type, true);
+			return KSFT_FAIL;
+		}
+		mte_initialize_current_context(mode, (uintptr_t)ptr, BUFFER_SIZE);
+		/* Check the write validity of the untagged pointer */
+		memset(ptr, '1', BUFFER_SIZE);
+		mte_wait_after_trig();
+		if (cur_mte_cxt.fault_valid)
+			break;
+	}
+	mte_free_memory(ptr, BUFFER_SIZE, mem_type, false);
+	if (cur_mte_cxt.fault_valid)
+		return KSFT_FAIL;
+	else
+		return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	/* Register SIGSEGV handler */
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+
+	/* Set test plan */
+	ksft_set_plan(4);
+
+	evaluate_test(check_single_included_tags(USE_MMAP, MTE_SYNC_ERR),
+		      "Check an included tag value with sync mode\n");
+	evaluate_test(check_multiple_included_tags(USE_MMAP, MTE_SYNC_ERR),
+		      "Check different included tags value with sync mode\n");
+	evaluate_test(check_none_included_tags(USE_MMAP, MTE_SYNC_ERR),
+		      "Check none included tags value with sync mode\n");
+	evaluate_test(check_all_included_tags(USE_MMAP, MTE_SYNC_ERR),
+		      "Check all included tags value with sync mode\n");
+
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/check_user_mem.c b/tools/testing/selftests/arm64/mte/check_user_mem.c
new file mode 100644
index 000000000000..fb7936c4e097
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_user_mem.c
@@ -0,0 +1,243 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+#include <sys/uio.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+static size_t page_sz;
+
+#define TEST_NAME_MAX 100
+
+enum test_type {
+	READ_TEST,
+	WRITE_TEST,
+	READV_TEST,
+	WRITEV_TEST,
+	LAST_TEST,
+};
+
+static int check_usermem_access_fault(int mem_type, int mode, int mapping,
+                                      int tag_offset, int tag_len,
+                                      enum test_type test_type)
+{
+	int fd, i, err;
+	char val = 'A';
+	ssize_t len, syscall_len;
+	void *ptr, *ptr_next;
+	int fileoff, ptroff, size;
+	int sizes[] = {1, 2, 3, 8, 16, 32, 4096, page_sz};
+
+	err = KSFT_PASS;
+	len = 2 * page_sz;
+	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG, false);
+	fd = create_temp_file();
+	if (fd == -1)
+		return KSFT_FAIL;
+	for (i = 0; i < len; i++)
+		if (write(fd, &val, sizeof(val)) != sizeof(val))
+			return KSFT_FAIL;
+	lseek(fd, 0, 0);
+	ptr = mte_allocate_memory(len, mem_type, mapping, true);
+	if (check_allocated_memory(ptr, len, mem_type, true) != KSFT_PASS) {
+		close(fd);
+		return KSFT_FAIL;
+	}
+	mte_initialize_current_context(mode, (uintptr_t)ptr, len);
+	/* Copy from file into buffer with valid tag */
+	syscall_len = read(fd, ptr, len);
+	mte_wait_after_trig();
+	if (cur_mte_cxt.fault_valid || syscall_len < len)
+		goto usermem_acc_err;
+	/* Verify same pattern is read */
+	for (i = 0; i < len; i++)
+		if (*(char *)(ptr + i) != val)
+			break;
+	if (i < len)
+		goto usermem_acc_err;
+
+	if (!tag_len)
+		tag_len = len - tag_offset;
+	/* Tag a part of memory with different value */
+	ptr_next = (void *)((unsigned long)ptr + tag_offset);
+	ptr_next = mte_insert_new_tag(ptr_next);
+	mte_set_tag_address_range(ptr_next, tag_len);
+
+	for (fileoff = 0; fileoff < 16; fileoff++) {
+		for (ptroff = 0; ptroff < 16; ptroff++) {
+			for (i = 0; i < ARRAY_SIZE(sizes); i++) {
+				size = sizes[i];
+				lseek(fd, 0, 0);
+
+				/* perform file operation on buffer with invalid tag */
+				switch (test_type) {
+				case READ_TEST:
+					syscall_len = read(fd, ptr + ptroff, size);
+					break;
+				case WRITE_TEST:
+					syscall_len = write(fd, ptr + ptroff, size);
+					break;
+				case READV_TEST: {
+					struct iovec iov[1];
+					iov[0].iov_base = ptr + ptroff;
+					iov[0].iov_len = size;
+					syscall_len = readv(fd, iov, 1);
+					break;
+				}
+				case WRITEV_TEST: {
+					struct iovec iov[1];
+					iov[0].iov_base = ptr + ptroff;
+					iov[0].iov_len = size;
+					syscall_len = writev(fd, iov, 1);
+					break;
+				}
+				case LAST_TEST:
+					goto usermem_acc_err;
+				}
+
+				mte_wait_after_trig();
+				/*
+				 * Accessing user memory in kernel with invalid tag should fail in sync
+				 * mode without fault but may not fail in async mode as per the
+				 * implemented MTE userspace support in Arm64 kernel.
+				 */
+				if (cur_mte_cxt.fault_valid) {
+					goto usermem_acc_err;
+				}
+				if (mode == MTE_SYNC_ERR && syscall_len < len) {
+					/* test passed */
+				} else if (mode == MTE_ASYNC_ERR && syscall_len == size) {
+					/* test passed */
+				} else {
+					goto usermem_acc_err;
+				}
+			}
+		}
+	}
+
+	goto exit;
+
+usermem_acc_err:
+	err = KSFT_FAIL;
+exit:
+	mte_free_memory((void *)ptr, len, mem_type, true);
+	close(fd);
+	return err;
+}
+
+void format_test_name(char* name, int name_len, int type, int sync, int map, int len, int offset) {
+	const char* test_type;
+	const char* mte_type;
+	const char* map_type;
+
+	switch (type) {
+	case READ_TEST:
+		test_type = "read";
+		break;
+	case WRITE_TEST:
+		test_type = "write";
+		break;
+	case READV_TEST:
+		test_type = "readv";
+		break;
+	case WRITEV_TEST:
+		test_type = "writev";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (sync) {
+	case MTE_SYNC_ERR:
+		mte_type = "MTE_SYNC_ERR";
+		break;
+	case MTE_ASYNC_ERR:
+		mte_type = "MTE_ASYNC_ERR";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	switch (map) {
+	case MAP_SHARED:
+		map_type = "MAP_SHARED";
+		break;
+	case MAP_PRIVATE:
+		map_type = "MAP_PRIVATE";
+		break;
+	default:
+		assert(0);
+		break;
+	}
+
+	snprintf(name, name_len,
+	         "test type: %s, %s, %s, tag len: %d, tag offset: %d\n",
+	         test_type, mte_type, map_type, len, offset);
+}
+
+int main(int argc, char *argv[])
+{
+	int err;
+	int t, s, m, l, o;
+	int mte_sync[] = {MTE_SYNC_ERR, MTE_ASYNC_ERR};
+	int maps[] = {MAP_SHARED, MAP_PRIVATE};
+	int tag_lens[] = {0, MT_GRANULE_SIZE};
+	int tag_offsets[] = {page_sz, MT_GRANULE_SIZE};
+	char test_name[TEST_NAME_MAX];
+
+	page_sz = getpagesize();
+	if (!page_sz) {
+		ksft_print_msg("ERR: Unable to get page size\n");
+		return KSFT_FAIL;
+	}
+	err = mte_default_setup();
+	if (err)
+		return err;
+
+	/* Register signal handlers */
+	mte_register_signal(SIGSEGV, mte_default_handler, false);
+
+	/* Set test plan */
+	ksft_set_plan(64);
+
+	for (t = 0; t < LAST_TEST; t++) {
+		for (s = 0; s < ARRAY_SIZE(mte_sync); s++) {
+			for (m = 0; m < ARRAY_SIZE(maps); m++) {
+				for (l = 0; l < ARRAY_SIZE(tag_lens); l++) {
+					for (o = 0; o < ARRAY_SIZE(tag_offsets); o++) {
+						int sync = mte_sync[s];
+						int map = maps[m];
+						int offset = tag_offsets[o];
+						int tag_len = tag_lens[l];
+						int res = check_usermem_access_fault(USE_MMAP, sync,
+						                                     map, offset,
+						                                     tag_len, t);
+						format_test_name(test_name, TEST_NAME_MAX,
+						                 t, sync, map, tag_len, offset);
+						evaluate_test(res, test_name);
+					}
+				}
+			}
+		}
+	}
+
+	mte_restore_setup();
+	ksft_print_cnts();
+	return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}
diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.c b/tools/testing/selftests/arm64/mte/mte_common_util.c
new file mode 100644
index 000000000000..397e57dd946a
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/mte_common_util.c
@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#include <fcntl.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/auxvec.h>
+#include <sys/auxv.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+
+#include <asm/hwcap.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#ifndef SA_EXPOSE_TAGBITS
+#define SA_EXPOSE_TAGBITS 0x00000800
+#endif
+
+#define INIT_BUFFER_SIZE       256
+
+struct mte_fault_cxt cur_mte_cxt;
+bool mtefar_support;
+bool mtestonly_support;
+static unsigned int mte_cur_mode;
+static unsigned int mte_cur_pstate_tco;
+static bool mte_cur_stonly;
+
+void mte_default_handler(int signum, siginfo_t *si, void *uc)
+{
+	struct sigaction sa;
+	unsigned long addr = (unsigned long)si->si_addr;
+	unsigned char si_tag, si_atag;
+
+	sigaction(signum, NULL, &sa);
+
+	if (sa.sa_flags & SA_EXPOSE_TAGBITS) {
+		si_tag = MT_FETCH_TAG(addr);
+		si_atag = MT_FETCH_ATAG(addr);
+		addr = MT_CLEAR_TAGS(addr);
+	} else {
+		si_tag = 0;
+		si_atag = 0;
+	}
+
+	if (signum == SIGSEGV) {
+#ifdef DEBUG
+		ksft_print_msg("INFO: SIGSEGV signal at pc=%lx, fault addr=%lx, si_code=%lx, si_tag=%x, si_atag=%x\n",
+				((ucontext_t *)uc)->uc_mcontext.pc, addr, si->si_code, si_tag, si_atag);
+#endif
+		if (si->si_code == SEGV_MTEAERR) {
+			if (cur_mte_cxt.trig_si_code == si->si_code)
+				cur_mte_cxt.fault_valid = true;
+			else
+				ksft_print_msg("Got unexpected SEGV_MTEAERR at pc=%llx, fault addr=%lx\n",
+					       ((ucontext_t *)uc)->uc_mcontext.pc,
+					       addr);
+			return;
+		}
+		/* Compare the context for precise error */
+		else if (si->si_code == SEGV_MTESERR) {
+			if ((!mtefar_support && si_atag) || (si_atag != MT_FETCH_ATAG(cur_mte_cxt.trig_addr))) {
+				ksft_print_msg("Invalid MTE synchronous exception caught for address tag! si_tag=%x, si_atag: %x\n", si_tag, si_atag);
+				exit(KSFT_FAIL);
+			}
+
+			if (cur_mte_cxt.trig_si_code == si->si_code &&
+			    ((cur_mte_cxt.trig_range >= 0 &&
+			      addr >= MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) &&
+			      addr <= (MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) + cur_mte_cxt.trig_range)) ||
+			     (cur_mte_cxt.trig_range < 0 &&
+			      addr <= MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) &&
+			      addr >= (MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) + cur_mte_cxt.trig_range)))) {
+				cur_mte_cxt.fault_valid = true;
+				/* Adjust the pc by 4 */
+				((ucontext_t *)uc)->uc_mcontext.pc += 4;
+			} else {
+				ksft_print_msg("Invalid MTE synchronous exception caught!\n");
+				exit(1);
+			}
+		} else {
+			ksft_print_msg("Unknown SIGSEGV exception caught!\n");
+			exit(1);
+		}
+	} else if (signum == SIGBUS) {
+		ksft_print_msg("INFO: SIGBUS signal at pc=%llx, fault addr=%lx, si_code=%x\n",
+				((ucontext_t *)uc)->uc_mcontext.pc, addr, si->si_code);
+		if ((cur_mte_cxt.trig_range >= 0 &&
+		     addr >= MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) &&
+		     addr <= (MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) + cur_mte_cxt.trig_range)) ||
+		    (cur_mte_cxt.trig_range < 0 &&
+		     addr <= MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) &&
+		     addr >= (MT_CLEAR_TAGS(cur_mte_cxt.trig_addr) + cur_mte_cxt.trig_range))) {
+			cur_mte_cxt.fault_valid = true;
+			/* Adjust the pc by 4 */
+			((ucontext_t *)uc)->uc_mcontext.pc += 4;
+		}
+	}
+}
+
+void mte_register_signal(int signal, void (*handler)(int, siginfo_t *, void *),
+			 bool export_tags)
+{
+	struct sigaction sa;
+
+	sa.sa_sigaction = handler;
+	sa.sa_flags = SA_SIGINFO;
+
+	if (export_tags && signal == SIGSEGV)
+		sa.sa_flags |= SA_EXPOSE_TAGBITS;
+
+	sigemptyset(&sa.sa_mask);
+	sigaction(signal, &sa, NULL);
+}
+
+void mte_wait_after_trig(void)
+{
+	sched_yield();
+}
+
+void *mte_insert_tags(void *ptr, size_t size)
+{
+	void *tag_ptr;
+	int align_size;
+
+	if (!ptr || (unsigned long)(ptr) & MT_ALIGN_GRANULE) {
+		ksft_print_msg("FAIL: Addr=%p: invalid\n", ptr);
+		return NULL;
+	}
+	align_size = MT_ALIGN_UP(size);
+	tag_ptr = mte_insert_random_tag(ptr);
+	mte_set_tag_address_range(tag_ptr, align_size);
+	return tag_ptr;
+}
+
+void mte_clear_tags(void *ptr, size_t size)
+{
+	if (!ptr || (unsigned long)(ptr) & MT_ALIGN_GRANULE) {
+		ksft_print_msg("FAIL: Addr=%p: invalid\n", ptr);
+		return;
+	}
+	size = MT_ALIGN_UP(size);
+	ptr = (void *)MT_CLEAR_TAG((unsigned long)ptr);
+	mte_clear_tag_address_range(ptr, size);
+}
+
+void *mte_insert_atag(void *ptr)
+{
+	unsigned char atag;
+
+	atag =  mtefar_support ? (random() % MT_ATAG_MASK) + 1 : 0;
+	return (void *)MT_SET_ATAG((unsigned long)ptr, atag);
+}
+
+void *mte_clear_atag(void *ptr)
+{
+	return (void *)MT_CLEAR_ATAG((unsigned long)ptr);
+}
+
+static void *__mte_allocate_memory_range(size_t size, int mem_type, int mapping,
+					 size_t range_before, size_t range_after,
+					 bool tags, int fd)
+{
+	void *ptr;
+	int prot_flag, map_flag;
+	size_t entire_size = size + range_before + range_after;
+
+	switch (mem_type) {
+	case USE_MALLOC:
+		return malloc(entire_size) + range_before;
+	case USE_MMAP:
+	case USE_MPROTECT:
+		break;
+	default:
+		ksft_print_msg("FAIL: Invalid allocate request\n");
+		return NULL;
+	}
+
+	prot_flag = PROT_READ | PROT_WRITE;
+	if (mem_type == USE_MMAP)
+		prot_flag |= PROT_MTE;
+
+	map_flag = mapping;
+	if (fd == -1)
+		map_flag = MAP_ANONYMOUS | map_flag;
+	if (!(mapping & MAP_SHARED))
+		map_flag |= MAP_PRIVATE;
+	ptr = mmap(NULL, entire_size, prot_flag, map_flag, fd, 0);
+	if (ptr == MAP_FAILED) {
+		ksft_perror("mmap()");
+		return NULL;
+	}
+	if (mem_type == USE_MPROTECT) {
+		if (mprotect(ptr, entire_size, prot_flag | PROT_MTE)) {
+			ksft_perror("mprotect(PROT_MTE)");
+			munmap(ptr, size);
+			return NULL;
+		}
+	}
+	if (tags)
+		ptr = mte_insert_tags(ptr + range_before, size);
+	return ptr;
+}
+
+void *mte_allocate_memory_tag_range(size_t size, int mem_type, int mapping,
+				    size_t range_before, size_t range_after)
+{
+	return __mte_allocate_memory_range(size, mem_type, mapping, range_before,
+					   range_after, true, -1);
+}
+
+void *mte_allocate_memory(size_t size, int mem_type, int mapping, bool tags)
+{
+	return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, -1);
+}
+
+void *mte_allocate_file_memory(size_t size, int mem_type, int mapping, bool tags, int fd)
+{
+	int index;
+	char buffer[INIT_BUFFER_SIZE];
+
+	if (mem_type != USE_MPROTECT && mem_type != USE_MMAP) {
+		ksft_print_msg("FAIL: Invalid mmap file request\n");
+		return NULL;
+	}
+	/* Initialize the file for mappable size */
+	lseek(fd, 0, SEEK_SET);
+	for (index = INIT_BUFFER_SIZE; index < size; index += INIT_BUFFER_SIZE) {
+		if (write(fd, buffer, INIT_BUFFER_SIZE) != INIT_BUFFER_SIZE) {
+			ksft_perror("initialising buffer");
+			return NULL;
+		}
+	}
+	index -= INIT_BUFFER_SIZE;
+	if (write(fd, buffer, size - index) != size - index) {
+		ksft_perror("initialising buffer");
+		return NULL;
+	}
+	return __mte_allocate_memory_range(size, mem_type, mapping, 0, 0, tags, fd);
+}
+
+void *mte_allocate_file_memory_tag_range(size_t size, int mem_type, int mapping,
+					 size_t range_before, size_t range_after, int fd)
+{
+	int index;
+	char buffer[INIT_BUFFER_SIZE];
+	int map_size = size + range_before + range_after;
+
+	if (mem_type != USE_MPROTECT && mem_type != USE_MMAP) {
+		ksft_print_msg("FAIL: Invalid mmap file request\n");
+		return NULL;
+	}
+	/* Initialize the file for mappable size */
+	lseek(fd, 0, SEEK_SET);
+	for (index = INIT_BUFFER_SIZE; index < map_size; index += INIT_BUFFER_SIZE)
+		if (write(fd, buffer, INIT_BUFFER_SIZE) != INIT_BUFFER_SIZE) {
+			ksft_perror("initialising buffer");
+			return NULL;
+		}
+	index -= INIT_BUFFER_SIZE;
+	if (write(fd, buffer, map_size - index) != map_size - index) {
+		ksft_perror("initialising buffer");
+		return NULL;
+	}
+	return __mte_allocate_memory_range(size, mem_type, mapping, range_before,
+					   range_after, true, fd);
+}
+
+static void __mte_free_memory_range(void *ptr, size_t size, int mem_type,
+				    size_t range_before, size_t range_after, bool tags)
+{
+	switch (mem_type) {
+	case USE_MALLOC:
+		free(ptr - range_before);
+		break;
+	case USE_MMAP:
+	case USE_MPROTECT:
+		if (tags)
+			mte_clear_tags(ptr, size);
+		munmap(ptr - range_before, size + range_before + range_after);
+		break;
+	default:
+		ksft_print_msg("FAIL: Invalid free request\n");
+		break;
+	}
+}
+
+void mte_free_memory_tag_range(void *ptr, size_t size, int mem_type,
+			       size_t range_before, size_t range_after)
+{
+	__mte_free_memory_range(ptr, size, mem_type, range_before, range_after, true);
+}
+
+void mte_free_memory(void *ptr, size_t size, int mem_type, bool tags)
+{
+	__mte_free_memory_range(ptr, size, mem_type, 0, 0, tags);
+}
+
+void mte_initialize_current_context(int mode, uintptr_t ptr, ssize_t range)
+{
+	cur_mte_cxt.fault_valid = false;
+	cur_mte_cxt.trig_addr = ptr;
+	cur_mte_cxt.trig_range = range;
+	if (mode == MTE_SYNC_ERR)
+		cur_mte_cxt.trig_si_code = SEGV_MTESERR;
+	else if (mode == MTE_ASYNC_ERR)
+		cur_mte_cxt.trig_si_code = SEGV_MTEAERR;
+	else
+		cur_mte_cxt.trig_si_code = 0;
+}
+
+int mte_switch_mode(int mte_option, unsigned long incl_mask, bool stonly)
+{
+	unsigned long en = 0;
+
+	switch (mte_option) {
+	case MTE_NONE_ERR:
+	case MTE_SYNC_ERR:
+	case MTE_ASYNC_ERR:
+		break;
+	default:
+		ksft_print_msg("FAIL: Invalid MTE option %x\n", mte_option);
+		return -EINVAL;
+	}
+
+	if (incl_mask & ~MT_INCLUDE_TAG_MASK) {
+		ksft_print_msg("FAIL: Invalid incl_mask %lx\n", incl_mask);
+		return -EINVAL;
+	}
+
+	en = PR_TAGGED_ADDR_ENABLE;
+	switch (mte_option) {
+	case MTE_SYNC_ERR:
+		en |= PR_MTE_TCF_SYNC;
+		break;
+	case MTE_ASYNC_ERR:
+		en |= PR_MTE_TCF_ASYNC;
+		break;
+	case MTE_NONE_ERR:
+		en |= PR_MTE_TCF_NONE;
+		break;
+	}
+
+	if (mtestonly_support && stonly)
+		en |= PR_MTE_STORE_ONLY;
+
+	en |= (incl_mask << PR_MTE_TAG_SHIFT);
+	/* Enable address tagging ABI, mte error reporting mode and tag inclusion mask. */
+	if (prctl(PR_SET_TAGGED_ADDR_CTRL, en, 0, 0, 0) != 0) {
+		ksft_print_msg("FAIL:prctl PR_SET_TAGGED_ADDR_CTRL for mte mode\n");
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int mte_default_setup(void)
+{
+	unsigned long hwcaps2 = getauxval(AT_HWCAP2);
+	unsigned long hwcaps3 = getauxval(AT_HWCAP3);
+	unsigned long en = 0;
+	int ret;
+
+	/* To generate random address tag */
+	srandom(time(NULL));
+
+	if (!(hwcaps2 & HWCAP2_MTE))
+		ksft_exit_skip("MTE features unavailable\n");
+
+	mtefar_support = !!(hwcaps3 & HWCAP3_MTE_FAR);
+
+	if (hwcaps3 & HWCAP3_MTE_STORE_ONLY)
+		mtestonly_support = true;
+
+	/* Get current mte mode */
+	ret = prctl(PR_GET_TAGGED_ADDR_CTRL, en, 0, 0, 0);
+	if (ret < 0) {
+		ksft_print_msg("FAIL:prctl PR_GET_TAGGED_ADDR_CTRL with error =%d\n", ret);
+		return KSFT_FAIL;
+	}
+	if (ret & PR_MTE_TCF_SYNC)
+		mte_cur_mode = MTE_SYNC_ERR;
+	else if (ret & PR_MTE_TCF_ASYNC)
+		mte_cur_mode = MTE_ASYNC_ERR;
+	else if (ret & PR_MTE_TCF_NONE)
+		mte_cur_mode = MTE_NONE_ERR;
+
+	mte_cur_stonly = (ret & PR_MTE_STORE_ONLY) ? true : false;
+
+	mte_cur_pstate_tco = mte_get_pstate_tco();
+	/* Disable PSTATE.TCO */
+	mte_disable_pstate_tco();
+	return 0;
+}
+
+void mte_restore_setup(void)
+{
+	mte_switch_mode(mte_cur_mode, MTE_ALLOW_NON_ZERO_TAG, mte_cur_stonly);
+	if (mte_cur_pstate_tco == MT_PSTATE_TCO_EN)
+		mte_enable_pstate_tco();
+	else if (mte_cur_pstate_tco == MT_PSTATE_TCO_DIS)
+		mte_disable_pstate_tco();
+}
+
+int create_temp_file(void)
+{
+	int fd;
+	char filename[] = "/dev/shm/tmp_XXXXXX";
+
+	/* Create a file in the tmpfs filesystem */
+	fd = mkstemp(&filename[0]);
+	if (fd == -1) {
+		ksft_perror(filename);
+		ksft_print_msg("FAIL: Unable to open temporary file\n");
+		return 0;
+	}
+	unlink(&filename[0]);
+	return fd;
+}
diff --git a/tools/testing/selftests/arm64/mte/mte_common_util.h b/tools/testing/selftests/arm64/mte/mte_common_util.h
new file mode 100644
index 000000000000..250d671329a5
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/mte_common_util.h
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 ARM Limited */
+
+#ifndef _MTE_COMMON_UTIL_H
+#define _MTE_COMMON_UTIL_H
+
+#include <signal.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <sys/auxv.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include "mte_def.h"
+#include "kselftest.h"
+
+enum mte_mem_type {
+	USE_MALLOC,
+	USE_MMAP,
+	USE_MPROTECT,
+};
+
+enum mte_mode {
+	MTE_NONE_ERR,
+	MTE_SYNC_ERR,
+	MTE_ASYNC_ERR,
+};
+
+struct mte_fault_cxt {
+	/* Address start which triggers mte tag fault */
+	unsigned long trig_addr;
+	/* Address range for mte tag fault and negative value means underflow */
+	ssize_t trig_range;
+	/* siginfo si code */
+	unsigned long trig_si_code;
+	/* Flag to denote if correct fault caught */
+	bool fault_valid;
+};
+
+extern struct mte_fault_cxt cur_mte_cxt;
+extern bool mtefar_support;
+extern bool mtestonly_support;
+
+/* MTE utility functions */
+void mte_default_handler(int signum, siginfo_t *si, void *uc);
+void mte_register_signal(int signal, void (*handler)(int, siginfo_t *, void *),
+			 bool export_tags);
+void mte_wait_after_trig(void);
+void *mte_allocate_memory(size_t size, int mem_type, int mapping, bool tags);
+void *mte_allocate_memory_tag_range(size_t size, int mem_type, int mapping,
+				    size_t range_before, size_t range_after);
+void *mte_allocate_file_memory(size_t size, int mem_type, int mapping,
+			       bool tags, int fd);
+void *mte_allocate_file_memory_tag_range(size_t size, int mem_type, int mapping,
+					 size_t range_before, size_t range_after, int fd);
+void mte_free_memory(void *ptr, size_t size, int mem_type, bool tags);
+void mte_free_memory_tag_range(void *ptr, size_t size, int mem_type,
+			       size_t range_before, size_t range_after);
+void *mte_insert_tags(void *ptr, size_t size);
+void mte_clear_tags(void *ptr, size_t size);
+void *mte_insert_atag(void *ptr);
+void *mte_clear_atag(void *ptr);
+int mte_default_setup(void);
+void mte_restore_setup(void);
+int mte_switch_mode(int mte_option, unsigned long incl_mask, bool stonly);
+void mte_initialize_current_context(int mode, uintptr_t ptr, ssize_t range);
+
+/* Common utility functions */
+int create_temp_file(void);
+
+/* Assembly MTE utility functions */
+void *mte_insert_random_tag(void *ptr);
+void *mte_insert_new_tag(void *ptr);
+void *mte_get_tag_address(void *ptr);
+void mte_set_tag_address_range(void *ptr, int range);
+void mte_clear_tag_address_range(void *ptr, int range);
+void mte_disable_pstate_tco(void);
+void mte_enable_pstate_tco(void);
+unsigned int mte_get_pstate_tco(void);
+
+/* Test framework static inline functions/macros */
+static inline void evaluate_test(int err, const char *msg)
+{
+	switch (err) {
+	case KSFT_PASS:
+		ksft_test_result_pass("%s", msg);
+		break;
+	case KSFT_FAIL:
+		ksft_test_result_fail("%s", msg);
+		break;
+	case KSFT_SKIP:
+		ksft_test_result_skip("%s", msg);
+		break;
+	default:
+		ksft_test_result_error("Unknown return code %d from %s",
+				       err, msg);
+		break;
+	}
+}
+
+static inline int check_allocated_memory(void *ptr, size_t size,
+					 int mem_type, bool tags)
+{
+	if (ptr == NULL) {
+		ksft_print_msg("FAIL: memory allocation\n");
+		return KSFT_FAIL;
+	}
+
+	if (tags && !MT_FETCH_TAG((uintptr_t)ptr)) {
+		ksft_print_msg("FAIL: tag not found at addr(%p)\n", ptr);
+		mte_free_memory((void *)ptr, size, mem_type, false);
+		return KSFT_FAIL;
+	}
+
+	return KSFT_PASS;
+}
+
+static inline int check_allocated_memory_range(void *ptr, size_t size, int mem_type,
+					       size_t range_before, size_t range_after)
+{
+	if (ptr == NULL) {
+		ksft_print_msg("FAIL: memory allocation\n");
+		return KSFT_FAIL;
+	}
+
+	if (!MT_FETCH_TAG((uintptr_t)ptr)) {
+		ksft_print_msg("FAIL: tag not found at addr(%p)\n", ptr);
+		mte_free_memory_tag_range((void *)ptr, size, mem_type, range_before,
+					  range_after);
+		return KSFT_FAIL;
+	}
+	return KSFT_PASS;
+}
+
+#endif /* _MTE_COMMON_UTIL_H */
diff --git a/tools/testing/selftests/arm64/mte/mte_def.h b/tools/testing/selftests/arm64/mte/mte_def.h
new file mode 100644
index 000000000000..6ad22f07c9b8
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/mte_def.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 ARM Limited */
+
+/*
+ * Below definitions may be found in kernel headers, However, they are
+ * redefined here to decouple the MTE selftests compilations from them.
+ */
+#ifndef SEGV_MTEAERR
+#define	SEGV_MTEAERR	8
+#endif
+#ifndef SEGV_MTESERR
+#define	SEGV_MTESERR	9
+#endif
+#ifndef PROT_MTE
+#define PROT_MTE	 0x20
+#endif
+#ifndef HWCAP2_MTE
+#define HWCAP2_MTE	(1 << 18)
+#endif
+
+#ifndef PR_MTE_TCF_SHIFT
+#define PR_MTE_TCF_SHIFT	1
+#endif
+#ifndef PR_MTE_TCF_NONE
+#define PR_MTE_TCF_NONE		(0UL << PR_MTE_TCF_SHIFT)
+#endif
+#ifndef PR_MTE_TCF_SYNC
+#define	PR_MTE_TCF_SYNC		(1UL << PR_MTE_TCF_SHIFT)
+#endif
+#ifndef PR_MTE_TCF_ASYNC
+#define PR_MTE_TCF_ASYNC	(2UL << PR_MTE_TCF_SHIFT)
+#endif
+#ifndef PR_MTE_TAG_SHIFT
+#define	PR_MTE_TAG_SHIFT	3
+#endif
+
+/* MTE Hardware feature definitions below. */
+#define MT_TAG_SHIFT		56
+#define MT_TAG_MASK		0xFUL
+#define MT_FREE_TAG		0x0UL
+#define MT_GRANULE_SIZE         16
+#define MT_TAG_COUNT		16
+#define MT_INCLUDE_TAG_MASK	0xFFFF
+#define MT_EXCLUDE_TAG_MASK	0x0
+#define MT_ATAG_SHIFT		60
+#define MT_ATAG_MASK		0xFUL
+
+#define MT_ALIGN_GRANULE	(MT_GRANULE_SIZE - 1)
+#define MT_CLEAR_TAG(x)		((x) & ~(MT_TAG_MASK << MT_TAG_SHIFT))
+#define MT_SET_TAG(x, y)	((x) | (y << MT_TAG_SHIFT))
+#define MT_FETCH_TAG(x)		((x >> MT_TAG_SHIFT) & (MT_TAG_MASK))
+#define MT_ALIGN_UP(x)		((x + MT_ALIGN_GRANULE) & ~(MT_ALIGN_GRANULE))
+
+#define MT_CLEAR_ATAG(x)	((x) & ~(MT_TAG_MASK << MT_ATAG_SHIFT))
+#define MT_SET_ATAG(x, y)	((x) | (((y) & MT_ATAG_MASK) << MT_ATAG_SHIFT))
+#define MT_FETCH_ATAG(x)	((x >> MT_ATAG_SHIFT) & (MT_ATAG_MASK))
+
+#define MT_CLEAR_TAGS(x) 	(MT_CLEAR_ATAG(MT_CLEAR_TAG(x)))
+
+#define MT_PSTATE_TCO_SHIFT	25
+#define MT_PSTATE_TCO_MASK	~(0x1 << MT_PSTATE_TCO_SHIFT)
+#define MT_PSTATE_TCO_EN	1
+#define MT_PSTATE_TCO_DIS	0
+
+#define MT_EXCLUDE_TAG(x)		(1 << (x))
+#define MT_INCLUDE_VALID_TAG(x)		(MT_INCLUDE_TAG_MASK ^ MT_EXCLUDE_TAG(x))
+#define MT_INCLUDE_VALID_TAGS(x)	(MT_INCLUDE_TAG_MASK ^ (x))
+#define MTE_ALLOW_NON_ZERO_TAG		MT_INCLUDE_VALID_TAG(0)
diff --git a/tools/testing/selftests/arm64/mte/mte_helper.S b/tools/testing/selftests/arm64/mte/mte_helper.S
new file mode 100644
index 000000000000..a55dbbc56ed1
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/mte_helper.S
@@ -0,0 +1,130 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 ARM Limited */
+
+#include "mte_def.h"
+
+.arch	armv8.5-a+memtag
+
+#define ENTRY(name) \
+	.globl name ;\
+	.p2align 2;\
+	.type name, @function ;\
+name:
+
+#define ENDPROC(name) \
+	.size name, .-name ;
+
+	.text
+/*
+ * mte_insert_random_tag: Insert random tag and might be same as the source tag if
+ *			  the source pointer has it.
+ * Input:
+ *		x0 - source pointer with a tag/no-tag
+ * Return:
+ *		x0 - pointer with random tag
+ */
+ENTRY(mte_insert_random_tag)
+	irg	x0, x0, xzr
+	ret
+ENDPROC(mte_insert_random_tag)
+
+/*
+ * mte_insert_new_tag: Insert new tag and different from the source tag if
+ *		       source pointer has it.
+ * Input:
+ *		x0 - source pointer with a tag/no-tag
+ * Return:
+ *		x0 - pointer with random tag
+ */
+ENTRY(mte_insert_new_tag)
+	gmi	x1, x0, xzr
+	irg	x0, x0, x1
+	ret
+ENDPROC(mte_insert_new_tag)
+
+/*
+ * mte_get_tag_address: Get the tag from given address.
+ * Input:
+ *		x0 - source pointer
+ * Return:
+ *		x0 - pointer with appended tag
+ */
+ENTRY(mte_get_tag_address)
+	ldg	x0, [x0]
+	ret
+ENDPROC(mte_get_tag_address)
+
+/*
+ * mte_set_tag_address_range: Set the tag range from the given address
+ * Input:
+ *		x0 - source pointer with tag data
+ *		x1 - range
+ * Return:
+ *		none
+ */
+ENTRY(mte_set_tag_address_range)
+	cbz	x1, 2f
+1:
+	stg	x0, [x0, #0x0]
+	add	x0, x0, #MT_GRANULE_SIZE
+	sub	x1, x1, #MT_GRANULE_SIZE
+	cbnz	x1, 1b
+2:
+	ret
+ENDPROC(mte_set_tag_address_range)
+
+/*
+ * mt_clear_tag_address_range: Clear the tag range from the given address
+ * Input:
+ *		x0 - source pointer with tag data
+ *		x1 - range
+ * Return:
+ *		none
+ */
+ENTRY(mte_clear_tag_address_range)
+	cbz	x1, 2f
+1:
+	stzg	x0, [x0, #0x0]
+	add	x0, x0, #MT_GRANULE_SIZE
+	sub	x1, x1, #MT_GRANULE_SIZE
+	cbnz	x1, 1b
+2:
+	ret
+ENDPROC(mte_clear_tag_address_range)
+
+/*
+ * mte_enable_pstate_tco: Enable PSTATE.TCO (tag check override) field
+ * Input:
+ *		none
+ * Return:
+ *		none
+ */
+ENTRY(mte_enable_pstate_tco)
+	msr	tco, #MT_PSTATE_TCO_EN
+	ret
+ENDPROC(mte_enable_pstate_tco)
+
+/*
+ * mte_disable_pstate_tco: Disable PSTATE.TCO (tag check override) field
+ * Input:
+ *		none
+ * Return:
+ *		none
+ */
+ENTRY(mte_disable_pstate_tco)
+	msr	tco, #MT_PSTATE_TCO_DIS
+	ret
+ENDPROC(mte_disable_pstate_tco)
+
+/*
+ * mte_get_pstate_tco: Get PSTATE.TCO (tag check override) field
+ * Input:
+ *		none
+ * Return:
+ *		x0
+ */
+ENTRY(mte_get_pstate_tco)
+	mrs	x0, tco
+	ubfx	x0, x0, #MT_PSTATE_TCO_SHIFT, #1
+	ret
+ENDPROC(mte_get_pstate_tco)
diff --git a/tools/testing/selftests/arm64/pauth/.gitignore b/tools/testing/selftests/arm64/pauth/.gitignore
new file mode 100644
index 000000000000..155137d92722
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/.gitignore
@@ -0,0 +1,2 @@
+exec_target
+pac
diff --git a/tools/testing/selftests/arm64/pauth/Makefile b/tools/testing/selftests/arm64/pauth/Makefile
new file mode 100644
index 000000000000..b5a1c80e0ead
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/Makefile
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 ARM Limited
+
+# preserve CC value from top level Makefile
+ifeq ($(CC),cc)
+CC := $(CROSS_COMPILE)gcc
+endif
+
+CFLAGS += -mbranch-protection=pac-ret
+
+# All supported LLVMs have PAC, test for GCC
+ifeq ($(LLVM),1)
+pauth_cc_support := 1
+else
+# check if the compiler supports ARMv8.3 and branch protection with PAuth
+pauth_cc_support := $(shell if ($(CC) $(CFLAGS) -march=armv8.3-a -E -x c /dev/null -o /dev/null 2>&1) then echo "1"; fi)
+endif
+
+ifeq ($(pauth_cc_support),1)
+TEST_GEN_PROGS := pac
+TEST_GEN_FILES := pac_corruptor.o helper.o
+TEST_GEN_PROGS_EXTENDED := exec_target
+endif
+
+include ../../lib.mk
+
+ifeq ($(pauth_cc_support),1)
+# pac* and aut* instructions are not available on architectures berfore
+# ARMv8.3. Therefore target ARMv8.3 wherever they are used directly
+$(OUTPUT)/pac_corruptor.o: pac_corruptor.S
+	$(CC) -c $^ -o $@ $(CFLAGS) -march=armv8.3-a
+
+$(OUTPUT)/helper.o: helper.c
+	$(CC) -c $^ -o $@ $(CFLAGS) -march=armv8.3-a
+
+# when -mbranch-protection is enabled and the target architecture is ARMv8.3 or
+# greater, gcc emits pac* instructions which are not in HINT NOP space,
+# preventing the tests from occurring at all. Compile for ARMv8.2 so tests can
+# run on earlier targets and print a meaningful error messages
+$(OUTPUT)/exec_target: exec_target.c $(OUTPUT)/helper.o
+	$(CC) $^ -o $@ $(CFLAGS) -march=armv8.2-a
+
+$(OUTPUT)/pac: pac.c $(OUTPUT)/pac_corruptor.o $(OUTPUT)/helper.o
+	$(CC) $^ -o $@ $(CFLAGS) -march=armv8.2-a
+endif
diff --git a/tools/testing/selftests/arm64/pauth/exec_target.c b/tools/testing/selftests/arm64/pauth/exec_target.c
new file mode 100644
index 000000000000..e597861b26d6
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/exec_target.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/auxv.h>
+
+#include "helper.h"
+
+int main(void)
+{
+	struct signatures signed_vals;
+	unsigned long hwcaps;
+	size_t val;
+
+	size_t size = fread(&val, sizeof(size_t), 1, stdin);
+
+	if (size != 1) {
+		fprintf(stderr, "Could not read input from stdin\n");
+		return EXIT_FAILURE;
+	}
+
+	/* don't try to execute illegal (unimplemented) instructions) caller
+	 * should have checked this and keep worker simple
+	 */
+	hwcaps = getauxval(AT_HWCAP);
+
+	if (hwcaps & HWCAP_PACA) {
+		signed_vals.keyia = keyia_sign(val);
+		signed_vals.keyib = keyib_sign(val);
+		signed_vals.keyda = keyda_sign(val);
+		signed_vals.keydb = keydb_sign(val);
+	}
+	signed_vals.keyg = (hwcaps & HWCAP_PACG) ?  keyg_sign(val) : 0;
+
+	fwrite(&signed_vals, sizeof(struct signatures), 1, stdout);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/arm64/pauth/helper.c b/tools/testing/selftests/arm64/pauth/helper.c
new file mode 100644
index 000000000000..2c201e7d0d50
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/helper.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#include "helper.h"
+
+size_t keyia_sign(size_t ptr)
+{
+	asm volatile("paciza %0" : "+r" (ptr));
+	return ptr;
+}
+
+size_t keyib_sign(size_t ptr)
+{
+	asm volatile("pacizb %0" : "+r" (ptr));
+	return ptr;
+}
+
+size_t keyda_sign(size_t ptr)
+{
+	asm volatile("pacdza %0" : "+r" (ptr));
+	return ptr;
+}
+
+size_t keydb_sign(size_t ptr)
+{
+	asm volatile("pacdzb %0" : "+r" (ptr));
+	return ptr;
+}
+
+size_t keyg_sign(size_t ptr)
+{
+	/* output is encoded in the upper 32 bits */
+	size_t dest = 0;
+	size_t modifier = 0;
+
+	asm volatile("pacga %0, %1, %2" : "=r" (dest) : "r" (ptr), "r" (modifier));
+
+	return dest;
+}
diff --git a/tools/testing/selftests/arm64/pauth/helper.h b/tools/testing/selftests/arm64/pauth/helper.h
new file mode 100644
index 000000000000..652496c7b411
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/helper.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 ARM Limited */
+
+#ifndef _HELPER_H_
+#define _HELPER_H_
+
+#include <stdlib.h>
+
+#define NKEYS 5
+
+struct signatures {
+	size_t keyia;
+	size_t keyib;
+	size_t keyda;
+	size_t keydb;
+	size_t keyg;
+};
+
+void pac_corruptor(void);
+
+/* PAuth sign a value with key ia and modifier value 0 */
+size_t keyia_sign(size_t val);
+size_t keyib_sign(size_t val);
+size_t keyda_sign(size_t val);
+size_t keydb_sign(size_t val);
+size_t keyg_sign(size_t val);
+
+#endif
diff --git a/tools/testing/selftests/arm64/pauth/pac.c b/tools/testing/selftests/arm64/pauth/pac.c
new file mode 100644
index 000000000000..67d138057707
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/pac.c
@@ -0,0 +1,373 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <sys/auxv.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <sched.h>
+
+#include "kselftest_harness.h"
+#include "helper.h"
+
+#define PAC_COLLISION_ATTEMPTS 1000
+/*
+ * The kernel sets TBID by default. So bits 55 and above should remain
+ * untouched no matter what.
+ * The VA space size is 48 bits. Bigger is opt-in.
+ */
+#define PAC_MASK (~0xff80ffffffffffff)
+#define ARBITRARY_VALUE (0x1234)
+#define ASSERT_PAUTH_ENABLED() \
+do { \
+	unsigned long hwcaps = getauxval(AT_HWCAP); \
+	/* data key instructions are not in NOP space. This prevents a SIGILL */ \
+	if (!(hwcaps & HWCAP_PACA))					\
+		SKIP(return, "PAUTH not enabled"); \
+} while (0)
+#define ASSERT_GENERIC_PAUTH_ENABLED() \
+do { \
+	unsigned long hwcaps = getauxval(AT_HWCAP); \
+	/* generic key instructions are not in NOP space. This prevents a SIGILL */ \
+	if (!(hwcaps & HWCAP_PACG)) \
+		SKIP(return, "Generic PAUTH not enabled");	\
+} while (0)
+
+void sign_specific(struct signatures *sign, size_t val)
+{
+	sign->keyia = keyia_sign(val);
+	sign->keyib = keyib_sign(val);
+	sign->keyda = keyda_sign(val);
+	sign->keydb = keydb_sign(val);
+}
+
+void sign_all(struct signatures *sign, size_t val)
+{
+	sign->keyia = keyia_sign(val);
+	sign->keyib = keyib_sign(val);
+	sign->keyda = keyda_sign(val);
+	sign->keydb = keydb_sign(val);
+	sign->keyg  = keyg_sign(val);
+}
+
+int n_same(struct signatures *old, struct signatures *new, int nkeys)
+{
+	int res = 0;
+
+	res += old->keyia == new->keyia;
+	res += old->keyib == new->keyib;
+	res += old->keyda == new->keyda;
+	res += old->keydb == new->keydb;
+	if (nkeys == NKEYS)
+		res += old->keyg == new->keyg;
+
+	return res;
+}
+
+int n_same_single_set(struct signatures *sign, int nkeys)
+{
+	size_t vals[nkeys];
+	int same = 0;
+
+	vals[0] = sign->keyia & PAC_MASK;
+	vals[1] = sign->keyib & PAC_MASK;
+	vals[2] = sign->keyda & PAC_MASK;
+	vals[3] = sign->keydb & PAC_MASK;
+
+	if (nkeys >= 4)
+		vals[4] = sign->keyg & PAC_MASK;
+
+	for (int i = 0; i < nkeys - 1; i++) {
+		for (int j = i + 1; j < nkeys; j++) {
+			if (vals[i] == vals[j])
+				same += 1;
+		}
+	}
+	return same;
+}
+
+int exec_sign_all(struct signatures *signed_vals, size_t val)
+{
+	int new_stdin[2];
+	int new_stdout[2];
+	int status;
+	int i;
+	ssize_t ret;
+	pid_t pid;
+	cpu_set_t mask;
+
+	ret = pipe(new_stdin);
+	if (ret == -1) {
+		perror("pipe returned error");
+		return -1;
+	}
+
+	ret = pipe(new_stdout);
+	if (ret == -1) {
+		perror("pipe returned error");
+		return -1;
+	}
+
+	/*
+	 * pin this process and all its children to a single CPU, so it can also
+	 * guarantee a context switch with its child
+	 */
+	sched_getaffinity(0, sizeof(mask), &mask);
+
+	for (i = 0; i < sizeof(cpu_set_t); i++)
+		if (CPU_ISSET(i, &mask))
+			break;
+
+	CPU_ZERO(&mask);
+	CPU_SET(i, &mask);
+	sched_setaffinity(0, sizeof(mask), &mask);
+
+	pid = fork();
+	// child
+	if (pid == 0) {
+		dup2(new_stdin[0], STDIN_FILENO);
+		if (ret == -1) {
+			perror("dup2 returned error");
+			exit(1);
+		}
+
+		dup2(new_stdout[1], STDOUT_FILENO);
+		if (ret == -1) {
+			perror("dup2 returned error");
+			exit(1);
+		}
+
+		close(new_stdin[0]);
+		close(new_stdin[1]);
+		close(new_stdout[0]);
+		close(new_stdout[1]);
+
+		ret = execl("exec_target", "exec_target", (char *)NULL);
+		if (ret == -1) {
+			perror("exec returned error");
+			exit(1);
+		}
+	}
+
+	close(new_stdin[0]);
+	close(new_stdout[1]);
+
+	ret = write(new_stdin[1], &val, sizeof(size_t));
+	if (ret == -1) {
+		perror("write returned error");
+		return -1;
+	}
+
+	/*
+	 * wait for the worker to finish, so that read() reads all data
+	 * will also context switch with worker so that this function can be used
+	 * for context switch tests
+	 */
+	waitpid(pid, &status, 0);
+	if (WIFEXITED(status) == 0) {
+		fprintf(stderr, "worker exited unexpectedly\n");
+		return -1;
+	}
+	if (WEXITSTATUS(status) != 0) {
+		fprintf(stderr, "worker exited with error\n");
+		return -1;
+	}
+
+	ret = read(new_stdout[0], signed_vals, sizeof(struct signatures));
+	if (ret == -1) {
+		perror("read returned error");
+		return -1;
+	}
+
+	close(new_stdin[1]);
+	close(new_stdout[0]);
+
+	return 0;
+}
+
+sigjmp_buf jmpbuf;
+void pac_signal_handler(int signum, siginfo_t *si, void *uc)
+{
+	if (signum == SIGSEGV || signum == SIGILL)
+		siglongjmp(jmpbuf, 1);
+}
+
+/* check that a corrupted PAC results in SIGSEGV or SIGILL */
+TEST(corrupt_pac)
+{
+	struct sigaction sa;
+
+	ASSERT_PAUTH_ENABLED();
+	if (sigsetjmp(jmpbuf, 1) == 0) {
+		sa.sa_sigaction = pac_signal_handler;
+		sa.sa_flags = SA_SIGINFO | SA_RESETHAND;
+		sigemptyset(&sa.sa_mask);
+
+		sigaction(SIGSEGV, &sa, NULL);
+		sigaction(SIGILL, &sa, NULL);
+
+		pac_corruptor();
+		ASSERT_TRUE(0) TH_LOG("SIGSEGV/SIGILL signal did not occur");
+	}
+}
+
+/*
+ * There are no separate pac* and aut* controls so checking only the pac*
+ * instructions is sufficient
+ */
+TEST(pac_instructions_not_nop)
+{
+	size_t keyia = 0;
+	size_t keyib = 0;
+	size_t keyda = 0;
+	size_t keydb = 0;
+
+	ASSERT_PAUTH_ENABLED();
+
+	for (int i = 0; i < PAC_COLLISION_ATTEMPTS; i++) {
+		keyia |= keyia_sign(i) & PAC_MASK;
+		keyib |= keyib_sign(i) & PAC_MASK;
+		keyda |= keyda_sign(i) & PAC_MASK;
+		keydb |= keydb_sign(i) & PAC_MASK;
+	}
+
+	ASSERT_NE(0, keyia) TH_LOG("keyia instructions did nothing");
+	ASSERT_NE(0, keyib) TH_LOG("keyib instructions did nothing");
+	ASSERT_NE(0, keyda) TH_LOG("keyda instructions did nothing");
+	ASSERT_NE(0, keydb) TH_LOG("keydb instructions did nothing");
+}
+
+TEST(pac_instructions_not_nop_generic)
+{
+	size_t keyg = 0;
+
+	ASSERT_GENERIC_PAUTH_ENABLED();
+
+	for (int i = 0; i < PAC_COLLISION_ATTEMPTS; i++)
+		keyg |= keyg_sign(i) & PAC_MASK;
+
+	ASSERT_NE(0, keyg)  TH_LOG("keyg instructions did nothing");
+}
+
+TEST(single_thread_different_keys)
+{
+	int same = 10;
+	int nkeys = NKEYS;
+	int tmp;
+	struct signatures signed_vals;
+	unsigned long hwcaps = getauxval(AT_HWCAP);
+
+	/* generic and data key instructions are not in NOP space. This prevents a SIGILL */
+	ASSERT_PAUTH_ENABLED();
+	if (!(hwcaps & HWCAP_PACG)) {
+		TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks");
+		nkeys = NKEYS - 1;
+	}
+
+	/*
+	 * In Linux the PAC field can be up to 7 bits wide. Even if keys are
+	 * different, there is about 5% chance for PACs to collide with
+	 * different addresses. This chance rapidly increases with fewer bits
+	 * allocated for the PAC (e.g. wider address). A comparison of the keys
+	 * directly will be more reliable.
+	 * All signed values need to be different at least once out of n
+	 * attempts to be certain that the keys are different
+	 */
+	for (int i = 0; i < PAC_COLLISION_ATTEMPTS; i++) {
+		if (nkeys == NKEYS)
+			sign_all(&signed_vals, i);
+		else
+			sign_specific(&signed_vals, i);
+
+		tmp = n_same_single_set(&signed_vals, nkeys);
+		if (tmp < same)
+			same = tmp;
+	}
+
+	ASSERT_EQ(0, same) TH_LOG("%d keys clashed every time", same);
+}
+
+/*
+ * fork() does not change keys. Only exec() does so call a worker program.
+ * Its only job is to sign a value and report back the resutls
+ */
+TEST(exec_changed_keys)
+{
+	struct signatures new_keys;
+	struct signatures old_keys;
+	int ret;
+	int same = 10;
+	int nkeys = NKEYS;
+	unsigned long hwcaps = getauxval(AT_HWCAP);
+
+	/* generic and data key instructions are not in NOP space. This prevents a SIGILL */
+	ASSERT_PAUTH_ENABLED();
+	if (!(hwcaps & HWCAP_PACG)) {
+		TH_LOG("WARNING: Generic PAUTH not enabled. Skipping generic key checks");
+		nkeys = NKEYS - 1;
+	}
+
+	for (int i = 0; i < PAC_COLLISION_ATTEMPTS; i++) {
+		ret = exec_sign_all(&new_keys, i);
+		ASSERT_EQ(0, ret) TH_LOG("failed to run worker");
+
+		if (nkeys == NKEYS)
+			sign_all(&old_keys, i);
+		else
+			sign_specific(&old_keys, i);
+
+		ret = n_same(&old_keys, &new_keys, nkeys);
+		if (ret < same)
+			same = ret;
+	}
+
+	ASSERT_EQ(0, same) TH_LOG("exec() did not change %d keys", same);
+}
+
+TEST(context_switch_keep_keys)
+{
+	int ret;
+	struct signatures trash;
+	struct signatures before;
+	struct signatures after;
+
+	ASSERT_PAUTH_ENABLED();
+
+	sign_specific(&before, ARBITRARY_VALUE);
+
+	/* will context switch with a process with different keys at least once */
+	ret = exec_sign_all(&trash, ARBITRARY_VALUE);
+	ASSERT_EQ(0, ret) TH_LOG("failed to run worker");
+
+	sign_specific(&after, ARBITRARY_VALUE);
+
+	ASSERT_EQ(before.keyia, after.keyia) TH_LOG("keyia changed after context switching");
+	ASSERT_EQ(before.keyib, after.keyib) TH_LOG("keyib changed after context switching");
+	ASSERT_EQ(before.keyda, after.keyda) TH_LOG("keyda changed after context switching");
+	ASSERT_EQ(before.keydb, after.keydb) TH_LOG("keydb changed after context switching");
+}
+
+TEST(context_switch_keep_keys_generic)
+{
+	int ret;
+	struct signatures trash;
+	size_t before;
+	size_t after;
+
+	ASSERT_GENERIC_PAUTH_ENABLED();
+
+	before = keyg_sign(ARBITRARY_VALUE);
+
+	/* will context switch with a process with different keys at least once */
+	ret = exec_sign_all(&trash, ARBITRARY_VALUE);
+	ASSERT_EQ(0, ret) TH_LOG("failed to run worker");
+
+	after = keyg_sign(ARBITRARY_VALUE);
+
+	ASSERT_EQ(before, after) TH_LOG("keyg changed after context switching");
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/arm64/pauth/pac_corruptor.S b/tools/testing/selftests/arm64/pauth/pac_corruptor.S
new file mode 100644
index 000000000000..aa6588050752
--- /dev/null
+++ b/tools/testing/selftests/arm64/pauth/pac_corruptor.S
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2020 ARM Limited */
+
+.global pac_corruptor
+
+.text
+/*
+ * Corrupting a single bit of the PAC ensures the authentication will fail.  It
+ * also guarantees no possible collision. TCR_EL1.TBI0 is set by default so no
+ * top byte PAC is tested
+ */
+ pac_corruptor:
+	paciasp
+
+	/* corrupt the top bit of the PAC */
+	eor lr, lr, #1 << 53
+
+	autiasp
+	ret
diff --git a/tools/testing/selftests/arm64/signal/.gitignore b/tools/testing/selftests/arm64/signal/.gitignore
new file mode 100644
index 000000000000..b257db665a35
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/.gitignore
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0-only
+mangle_*
+fake_sigreturn_*
+fpmr_*
+poe_*
+gcs_*
+sme_*
+ssve_*
+sve_*
+tpidr2_*
+za_*
+zt_*
+!*.[ch]
diff --git a/tools/testing/selftests/arm64/signal/Makefile b/tools/testing/selftests/arm64/signal/Makefile
new file mode 100644
index 000000000000..1381039fb36f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/Makefile
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019 ARM Limited
+
+# Additional include paths needed by kselftest.h and local headers
+CFLAGS += -std=gnu99 -I.
+
+SRCS := $(filter-out testcases/testcases.c,$(wildcard testcases/*.c))
+PROGS := $(patsubst %.c,%,$(SRCS))
+
+# Generated binaries to be installed by top KSFT script
+TEST_GEN_PROGS := $(notdir $(PROGS))
+
+# Get Kernel headers installed and use them.
+
+# Including KSFT lib.mk here will also mangle the TEST_GEN_PROGS list
+# to account for any OUTPUT target-dirs optionally provided by
+# the toplevel makefile
+include ../../lib.mk
+
+$(TEST_GEN_PROGS): $(PROGS)
+	cp $(PROGS) $(OUTPUT)/
+
+# Common test-unit targets to build common-layout test-cases executables
+# Needs secondary expansion to properly include the testcase c-file in pre-reqs
+COMMON_SOURCES := test_signals.c test_signals_utils.c testcases/testcases.c \
+	signals.S sve_helpers.c
+COMMON_HEADERS := test_signals.h test_signals_utils.h testcases/testcases.h
+
+.SECONDEXPANSION:
+$(PROGS): $$@.c ${COMMON_SOURCES} ${COMMON_HEADERS}
+	$(CC) $(CFLAGS) ${@}.c ${COMMON_SOURCES} -o $@
diff --git a/tools/testing/selftests/arm64/signal/README b/tools/testing/selftests/arm64/signal/README
new file mode 100644
index 000000000000..967a531b245c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/README
@@ -0,0 +1,59 @@
+KSelfTest arm64/signal/
+=======================
+
+Signals Tests
++++++++++++++
+
+- Tests are built around a common main compilation unit: such shared main
+  enforces a standard sequence of operations needed to perform a single
+  signal-test (setup/trigger/run/result/cleanup)
+
+- The above mentioned ops are configurable on a test-by-test basis: each test
+  is described (and configured) using the descriptor signals.h::struct tdescr
+
+- Each signal testcase is compiled into its own executable: a separate
+  executable is used for each test since many tests complete successfully
+  by receiving some kind of fatal signal from the Kernel, so it's safer
+  to run each test unit in its own standalone process, so as to start each
+  test from a clean slate.
+
+- New tests can be simply defined in testcases/ dir providing a proper struct
+  tdescr overriding all the defaults we wish to change (as of now providing a
+  custom run method is mandatory though)
+
+- Signals' test-cases hereafter defined belong currently to two
+  principal families:
+
+  - 'mangle_' tests: a real signal (SIGUSR1) is raised and used as a trigger
+    and then the test case code modifies the signal frame from inside the
+    signal handler itself.
+
+  - 'fake_sigreturn_' tests: a brand new custom artificial sigframe structure
+    is placed on the stack and a sigreturn syscall is called to simulate a
+    real signal return. This kind of tests does not use a trigger usually and
+    they are just fired using some simple included assembly trampoline code.
+
+ - Most of these tests are successfully passing if the process gets killed by
+   some fatal signal: usually SIGSEGV or SIGBUS. Since while writing this
+   kind of tests it is extremely easy in fact to end-up injecting other
+   unrelated SEGV bugs in the testcases, it becomes extremely tricky to
+   be really sure that the tests are really addressing what they are meant
+   to address and they are not instead falling apart due to unplanned bugs
+   in the test code.
+   In order to alleviate the misery of the life of such test-developer, a few
+   helpers are provided:
+
+   - a couple of ASSERT_BAD/GOOD_CONTEXT() macros to easily parse a ucontext_t
+     and verify if it is indeed GOOD or BAD (depending on what we were
+     expecting), using the same logic/perspective as in the arm64 Kernel signals
+     routines.
+
+   - a sanity mechanism to be used in 'fake_sigreturn_'-alike tests: enabled by
+     default it takes care to verify that the test-execution had at least
+     successfully progressed up to the stage of triggering the fake sigreturn
+     call.
+
+  In both cases test results are expected in terms of:
+   - some fatal signal sent by the Kernel to the test process
+  or
+  - analyzing some final regs state
diff --git a/tools/testing/selftests/arm64/signal/signals.S b/tools/testing/selftests/arm64/signal/signals.S
new file mode 100644
index 000000000000..9f8c1aefc3b9
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/signals.S
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+
+#include <asm/unistd.h>
+
+.section        .rodata, "a"
+call_fmt:
+	.asciz "Calling sigreturn with fake sigframe sized:%zd at SP @%08lX\n"
+
+.text
+
+.globl fake_sigreturn
+
+/*	fake_sigreturn	x0:&sigframe,  x1:sigframe_size,  x2:misalign_bytes */
+fake_sigreturn:
+	stp	x29, x30, [sp, #-16]!
+	mov	x29, sp
+
+	mov	x20, x0
+	mov	x21, x1
+	mov	x22, x2
+
+	/* create space on the stack for fake sigframe 16 bytes-aligned */
+	add	x0, x21, x22
+	add	x0, x0, #15
+	bic	x0, x0, #15 /* round_up(sigframe_size + misalign_bytes, 16) */
+	sub	sp, sp, x0
+	add	x23, sp, x22 /* new sigframe base with misaligment if any */
+
+	ldr	x0, =call_fmt
+	mov	x1, x21
+	mov	x2, x23
+	bl	printf
+
+	/* memcpy the provided content, while still keeping SP aligned */
+	mov	x0, x23
+	mov	x1, x20
+	mov	x2, x21
+	bl	memcpy
+
+	/*
+	 * Here saving a last minute SP to current->token acts as a marker:
+	 * if we got here, we are successfully faking a sigreturn; in other
+	 * words we are sure no bad fatal signal has been raised till now
+	 * for unrelated reasons, so we should consider the possibly observed
+	 * fatal signal like SEGV coming from Kernel restore_sigframe() and
+	 * triggered as expected from our test-case.
+	 * For simplicity this assumes that current field 'token' is laid out
+	 * as first in struct tdescr
+	 */
+	ldr	x0, current
+	str	x23, [x0]
+	/* finally move SP to misaligned address...if any requested */
+	mov	sp, x23
+
+	mov	x8, #__NR_rt_sigreturn
+	svc	#0
+
+	/*
+	 * Above sigreturn should not return...looping here leads to a timeout
+	 * and ensure proper and clean test failure, instead of jumping around
+	 * on a potentially corrupted stack.
+	 */
+	b	.
diff --git a/tools/testing/selftests/arm64/signal/sve_helpers.c b/tools/testing/selftests/arm64/signal/sve_helpers.c
new file mode 100644
index 000000000000..0acc121af306
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/sve_helpers.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024 ARM Limited
+ *
+ * Common helper functions for SVE and SME functionality.
+ */
+
+#include <stdbool.h>
+#include <kselftest.h>
+#include <asm/sigcontext.h>
+#include <sys/prctl.h>
+
+unsigned int vls[SVE_VQ_MAX];
+unsigned int nvls;
+
+int sve_fill_vls(bool use_sme, int min_vls)
+{
+	int vq, vl;
+	int pr_set_vl = use_sme ? PR_SME_SET_VL : PR_SVE_SET_VL;
+	int len_mask = use_sme ? PR_SME_VL_LEN_MASK : PR_SVE_VL_LEN_MASK;
+
+	/*
+	 * Enumerate up to SVE_VQ_MAX vector lengths
+	 */
+	for (vq = SVE_VQ_MAX; vq > 0; --vq) {
+		vl = prctl(pr_set_vl, vq * 16);
+		if (vl == -1)
+			return KSFT_FAIL;
+
+		vl &= len_mask;
+
+		/*
+		 * Unlike SVE, SME does not require the minimum vector length
+		 * to be implemented, or the VLs to be consecutive, so any call
+		 * to the prctl might return the single implemented VL, which
+		 * might be larger than 16. So to avoid this loop never
+		 * terminating,  bail out here when we find a higher VL than
+		 * we asked for.
+		 * See the ARM ARM, DDI 0487K.a, B1.4.2: I_QQRNR and I_NWYBP.
+		 */
+		if (vq < sve_vq_from_vl(vl))
+			break;
+
+		/* Skip missing VLs */
+		vq = sve_vq_from_vl(vl);
+
+		vls[nvls++] = vl;
+	}
+
+	if (nvls < min_vls) {
+		fprintf(stderr, "Only %d VL supported\n", nvls);
+		return KSFT_SKIP;
+	}
+
+	return KSFT_PASS;
+}
diff --git a/tools/testing/selftests/arm64/signal/sve_helpers.h b/tools/testing/selftests/arm64/signal/sve_helpers.h
new file mode 100644
index 000000000000..ca133b93375f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/sve_helpers.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2024 ARM Limited
+ *
+ * Common helper functions for SVE and SME functionality.
+ */
+
+#ifndef __SVE_HELPERS_H__
+#define __SVE_HELPERS_H__
+
+#include <stdbool.h>
+
+#define VLS_USE_SVE	false
+#define VLS_USE_SME	true
+
+extern unsigned int vls[];
+extern unsigned int nvls;
+
+int sve_fill_vls(bool use_sme, int min_vls);
+
+static inline uint64_t get_svcr(void)
+{
+	uint64_t val;
+
+	asm volatile (
+		"mrs	%0, S3_3_C4_C2_2\n"
+		: "=r"(val)
+		:
+		: "cc");
+
+	return val;
+}
+
+#endif
diff --git a/tools/testing/selftests/arm64/signal/test_signals.c b/tools/testing/selftests/arm64/signal/test_signals.c
new file mode 100644
index 000000000000..1304c8ec0f2f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/test_signals.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Generic test wrapper for arm64 signal tests.
+ *
+ * Each test provides its own tde struct tdescr descriptor to link with
+ * this wrapper. Framework provides common helpers.
+ */
+
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+
+#include <kselftest.h>
+
+#include "test_signals.h"
+#include "test_signals_utils.h"
+
+struct tdescr *current = &tde;
+
+int main(int argc, char *argv[])
+{
+	/*
+	 * Ensure GCS is at least enabled throughout the tests if
+	 * supported, otherwise the inability to return from the
+	 * function that enabled GCS makes it very inconvenient to set
+	 * up test cases.  The prctl() may fail if GCS was locked by
+	 * libc setup code.
+	 */
+	if (getauxval(AT_HWCAP) & HWCAP_GCS)
+		gcs_set_state(PR_SHADOW_STACK_ENABLE);
+
+	ksft_print_msg("%s :: %s\n", current->name, current->descr);
+	if (test_setup(current) && test_init(current)) {
+		test_run(current);
+		test_cleanup(current);
+	}
+	test_result(current);
+
+	/* Do not return in case GCS was enabled */
+	exit(current->result);
+}
diff --git a/tools/testing/selftests/arm64/signal/test_signals.h b/tools/testing/selftests/arm64/signal/test_signals.h
new file mode 100644
index 000000000000..ee75a2c25ce7
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/test_signals.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+
+#ifndef __TEST_SIGNALS_H__
+#define __TEST_SIGNALS_H__
+
+#include <signal.h>
+#include <stdbool.h>
+#include <ucontext.h>
+
+/*
+ * Using ARCH specific and sanitized Kernel headers from the tree.
+ */
+#include <asm/ptrace.h>
+#include <asm/hwcap.h>
+
+#define __stringify_1(x...)	#x
+#define __stringify(x...)	__stringify_1(x)
+
+#define get_regval(regname, out)			\
+{							\
+	asm volatile("mrs %0, " __stringify(regname)	\
+	: "=r" (out)					\
+	:						\
+	: "memory");					\
+}
+
+/*
+ * Feature flags used in tdescr.feats_required to specify
+ * any feature by the test
+ */
+enum {
+	FSSBS_BIT,
+	FSVE_BIT,
+	FSME_BIT,
+	FSME_FA64_BIT,
+	FSME2_BIT,
+	FGCS_BIT,
+	FMAX_END
+};
+
+#define FEAT_SSBS		(1UL << FSSBS_BIT)
+#define FEAT_SVE		(1UL << FSVE_BIT)
+#define FEAT_SME		(1UL << FSME_BIT)
+#define FEAT_SME_FA64		(1UL << FSME_FA64_BIT)
+#define FEAT_SME2		(1UL << FSME2_BIT)
+#define FEAT_GCS		(1UL << FGCS_BIT)
+
+/*
+ * A descriptor used to describe and configure a test case.
+ * Fields with a non-trivial meaning are described inline in the following.
+ */
+struct tdescr {
+	/* KEEP THIS FIELD FIRST for easier lookup from assembly */
+	void			*token;
+	/* when disabled token based sanity checking is skipped in handler */
+	bool			sanity_disabled;
+	/* just a name for the test-case; manadatory field */
+	char			*name;
+	char			*descr;
+	unsigned long		feats_required;
+	unsigned long		feats_incompatible;
+	/* bitmask of effectively supported feats: populated at run-time */
+	unsigned long		feats_supported;
+	bool			initialized;
+	unsigned int		minsigstksz;
+	/* signum used as a test trigger. Zero if no trigger-signal is used */
+	int			sig_trig;
+	/*
+	 * signum considered as a successful test completion.
+	 * Zero when no signal is expected on success
+	 */
+	int			sig_ok;
+	/*
+	 * expected si_code for sig_ok, or 0 to not check
+	 */
+	int			sig_ok_code;
+	/* signum expected on unsupported CPU features. */
+	int			sig_unsupp;
+	/* a timeout in second for test completion */
+	unsigned int		timeout;
+	bool			triggered;
+	bool			pass;
+	unsigned int		result;
+	/* optional sa_flags for the installed handler */
+	int			sa_flags;
+	ucontext_t		saved_uc;
+	/* used by get_current_ctx() */
+	size_t			live_sz;
+	ucontext_t		*live_uc;
+	volatile sig_atomic_t	live_uc_valid;
+	/* optional test private data */
+	void			*priv;
+
+	/* a custom setup: called alternatively to default_setup */
+	int (*setup)(struct tdescr *td);
+	/* a custom init: called by default test init after test_setup */
+	bool (*init)(struct tdescr *td);
+	/* a custom cleanup function called before test exits */
+	void (*cleanup)(struct tdescr *td);
+	/* an optional function to be used as a trigger for starting test */
+	int (*trigger)(struct tdescr *td);
+	/*
+	 * the actual test-core: invoked differently depending on the
+	 * presence of the trigger function above; this is mandatory
+	 */
+	int (*run)(struct tdescr *td, siginfo_t *si, ucontext_t *uc);
+	/* an optional function for custom results' processing */
+	void (*check_result)(struct tdescr *td);
+};
+
+extern struct tdescr tde;
+#endif
diff --git a/tools/testing/selftests/arm64/signal/test_signals_utils.c b/tools/testing/selftests/arm64/signal/test_signals_utils.c
new file mode 100644
index 000000000000..5d3621921cfe
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/test_signals_utils.c
@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019 ARM Limited */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+#include <sys/auxv.h>
+#include <linux/auxvec.h>
+#include <ucontext.h>
+
+#include <asm/unistd.h>
+
+#include <kselftest.h>
+
+#include "test_signals.h"
+#include "test_signals_utils.h"
+#include "testcases/testcases.h"
+
+
+extern struct tdescr *current;
+
+static int sig_copyctx = SIGTRAP;
+
+static char const *const feats_names[FMAX_END] = {
+	" SSBS ",
+	" SVE ",
+	" SME ",
+	" FA64 ",
+	" SME2 ",
+	" GCS ",
+};
+
+#define MAX_FEATS_SZ	128
+static char feats_string[MAX_FEATS_SZ];
+
+static inline char *feats_to_string(unsigned long feats)
+{
+	size_t flen = MAX_FEATS_SZ - 1;
+
+	feats_string[0] = '\0';
+
+	for (int i = 0; i < FMAX_END; i++) {
+		if (feats & (1UL << i)) {
+			size_t tlen = strlen(feats_names[i]);
+
+			assert(flen > tlen);
+			flen -= tlen;
+			strncat(feats_string, feats_names[i], flen);
+		}
+	}
+
+	return feats_string;
+}
+
+static void unblock_signal(int signum)
+{
+	sigset_t sset;
+
+	sigemptyset(&sset);
+	sigaddset(&sset, signum);
+	sigprocmask(SIG_UNBLOCK, &sset, NULL);
+}
+
+static void default_result(struct tdescr *td, bool force_exit)
+{
+	if (td->result == KSFT_SKIP) {
+		fprintf(stderr, "==>> completed. SKIP.\n");
+	} else if (td->pass) {
+		fprintf(stderr, "==>> completed. PASS(1)\n");
+		td->result = KSFT_PASS;
+	} else {
+		fprintf(stdout, "==>> completed. FAIL(0)\n");
+		td->result = KSFT_FAIL;
+	}
+
+	if (force_exit)
+		exit(td->result);
+}
+
+/*
+ * The following handle_signal_* helpers are used by main default_handler
+ * and are meant to return true when signal is handled successfully:
+ * when false is returned instead, it means that the signal was somehow
+ * unexpected in that context and it was NOT handled; default_handler will
+ * take care of such unexpected situations.
+ */
+
+static bool handle_signal_unsupported(struct tdescr *td,
+				      siginfo_t *si, void *uc)
+{
+	if (feats_ok(td))
+		return false;
+
+	/* Mangling PC to avoid loops on original SIGILL */
+	((ucontext_t *)uc)->uc_mcontext.pc += 4;
+
+	if (!td->initialized) {
+		fprintf(stderr,
+			"Got SIG_UNSUPP @test_init. Ignore.\n");
+	} else {
+		fprintf(stderr,
+			"-- RX SIG_UNSUPP on unsupported feat...OK\n");
+		td->pass = 1;
+		default_result(current, 1);
+	}
+
+	return true;
+}
+
+static bool handle_signal_trigger(struct tdescr *td,
+				  siginfo_t *si, void *uc)
+{
+	td->triggered = 1;
+	/* ->run was asserted NON-NULL in test_setup() already */
+	td->run(td, si, uc);
+
+	return true;
+}
+
+static bool handle_signal_ok(struct tdescr *td,
+			     siginfo_t *si, void *uc)
+{
+	/*
+	 * it's a bug in the test code when this assert fail:
+	 * if sig_trig was defined, it must have been used before getting here.
+	 */
+	assert(!td->sig_trig || td->triggered);
+	fprintf(stderr,
+		"SIG_OK -- SP:0x%llX  si_addr@:%p  si_code:%d  token@:%p  offset:%ld\n",
+		((ucontext_t *)uc)->uc_mcontext.sp,
+		si->si_addr, si->si_code, td->token, td->token - si->si_addr);
+	/*
+	 * fake_sigreturn tests, which have sanity_enabled=1, set, at the very
+	 * last time, the token field to the SP address used to place the fake
+	 * sigframe: so token==0 means we never made it to the end,
+	 * segfaulting well-before, and the test is possibly broken.
+	 */
+	if (!td->sanity_disabled && !td->token) {
+		fprintf(stdout,
+			"current->token ZEROED...test is probably broken!\n");
+		abort();
+	}
+	if (td->sig_ok_code) {
+		if (si->si_code != td->sig_ok_code) {
+			fprintf(stdout, "si_code is %d not %d\n",
+				si->si_code, td->sig_ok_code);
+			abort();
+		}
+	} else {
+		/*
+		 * Trying to narrow down the SEGV to the ones
+		 * generated by Kernel itself via
+		 * arm64_notify_segfault(). This is a best-effort
+		 * check anyway, and the si_code check may need to
+		 * change if this aspect of the kernel ABI changes.
+		 */
+		if (td->sig_ok == SIGSEGV && si->si_code != SEGV_ACCERR) {
+			fprintf(stdout,
+				"si_code != SEGV_ACCERR...test is probably broken!\n");
+			abort();
+		}
+	}
+	td->pass = 1;
+	/*
+	 * Some tests can lead to SEGV loops: in such a case we want to
+	 * terminate immediately exiting straight away; some others are not
+	 * supposed to outlive the signal handler code, due to the content of
+	 * the fake sigframe which caused the signal itself.
+	 */
+	default_result(current, 1);
+
+	return true;
+}
+
+static bool handle_signal_copyctx(struct tdescr *td,
+				  siginfo_t *si, void *uc_in)
+{
+	ucontext_t *uc = uc_in;
+	struct _aarch64_ctx *head;
+	struct extra_context *extra, *copied_extra;
+	size_t offset = 0;
+	size_t to_copy;
+
+	ASSERT_GOOD_CONTEXT(uc);
+
+	/* Mangling PC to avoid loops on original BRK instr */
+	uc->uc_mcontext.pc += 4;
+
+	/*
+	 * Check for an preserve any extra data too with fixups.
+	 */
+	head = (struct _aarch64_ctx *)uc->uc_mcontext.__reserved;
+	head = get_header(head, EXTRA_MAGIC, td->live_sz, &offset);
+	if (head) {
+		extra = (struct extra_context *)head;
+
+		/*
+		 * The extra buffer must be immediately after the
+		 * extra_context and a 16 byte terminator. Include it
+		 * in the copy, this was previously validated in
+		 * ASSERT_GOOD_CONTEXT().
+		 */
+		to_copy = __builtin_offsetof(ucontext_t,
+					     uc_mcontext.__reserved);
+		to_copy += offset + sizeof(struct extra_context) + 16;
+		to_copy += extra->size;
+		copied_extra = (struct extra_context *)&(td->live_uc->uc_mcontext.__reserved[offset]);
+	} else {
+		copied_extra = NULL;
+		to_copy = sizeof(ucontext_t);
+	}
+
+	if (to_copy > td->live_sz) {
+		fprintf(stderr,
+			"Not enough space to grab context, %lu/%lu bytes\n",
+			td->live_sz, to_copy);
+		return false;
+	}
+
+	memcpy(td->live_uc, uc, to_copy);
+
+	/*
+	 * If there was any EXTRA_CONTEXT fix up the size to be the
+	 * struct extra_context and the following terminator record,
+	 * this means that the rest of the code does not need to have
+	 * special handling for the record and we don't need to fix up
+	 * datap for the new location.
+	 */
+	if (copied_extra)
+		copied_extra->head.size = sizeof(*copied_extra) + 16;
+
+	td->live_uc_valid = 1;
+	fprintf(stderr,
+		"%lu byte GOOD CONTEXT grabbed from sig_copyctx handler\n",
+		to_copy);
+
+	return true;
+}
+
+static void default_handler(int signum, siginfo_t *si, void *uc)
+{
+	if (current->sig_unsupp && signum == current->sig_unsupp &&
+	    handle_signal_unsupported(current, si, uc)) {
+		fprintf(stderr, "Handled SIG_UNSUPP\n");
+	} else if (current->sig_trig && signum == current->sig_trig &&
+		   handle_signal_trigger(current, si, uc)) {
+		fprintf(stderr, "Handled SIG_TRIG\n");
+	} else if (current->sig_ok && signum == current->sig_ok &&
+		   handle_signal_ok(current, si, uc)) {
+		fprintf(stderr, "Handled SIG_OK\n");
+	} else if (signum == sig_copyctx && current->live_uc &&
+		   handle_signal_copyctx(current, si, uc)) {
+		fprintf(stderr, "Handled SIG_COPYCTX\n");
+	} else {
+		if (signum == SIGALRM && current->timeout) {
+			fprintf(stderr, "-- Timeout !\n");
+		} else {
+			fprintf(stderr,
+				"-- RX UNEXPECTED SIGNAL: %d code %d address %p\n",
+				signum, si->si_code, si->si_addr);
+		}
+		default_result(current, 1);
+	}
+}
+
+static int default_setup(struct tdescr *td)
+{
+	struct sigaction sa;
+
+	sa.sa_sigaction = default_handler;
+	sa.sa_flags = SA_SIGINFO | SA_RESTART;
+	sa.sa_flags |= td->sa_flags;
+	sigemptyset(&sa.sa_mask);
+	/* uncatchable signals naturally skipped ... */
+	for (int sig = 1; sig < 32; sig++)
+		sigaction(sig, &sa, NULL);
+	/*
+	 * RT Signals default disposition is Term but they cannot be
+	 * generated by the Kernel in response to our tests; so just catch
+	 * them all and report them as UNEXPECTED signals.
+	 */
+	for (int sig = SIGRTMIN; sig <= SIGRTMAX; sig++)
+		sigaction(sig, &sa, NULL);
+
+	/* just in case...unblock explicitly all we need */
+	if (td->sig_trig)
+		unblock_signal(td->sig_trig);
+	if (td->sig_ok)
+		unblock_signal(td->sig_ok);
+	if (td->sig_unsupp)
+		unblock_signal(td->sig_unsupp);
+
+	if (td->timeout) {
+		unblock_signal(SIGALRM);
+		alarm(td->timeout);
+	}
+	fprintf(stderr, "Registered handlers for all signals.\n");
+
+	return 1;
+}
+
+static inline int default_trigger(struct tdescr *td)
+{
+	return !raise(td->sig_trig);
+}
+
+int test_init(struct tdescr *td)
+{
+	if (td->sig_trig == sig_copyctx) {
+		fprintf(stdout,
+			"Signal %d is RESERVED, cannot be used as a trigger. Aborting\n",
+			sig_copyctx);
+		return 0;
+	}
+	/* just in case */
+	unblock_signal(sig_copyctx);
+
+	td->minsigstksz = getauxval(AT_MINSIGSTKSZ);
+	if (!td->minsigstksz)
+		td->minsigstksz = MINSIGSTKSZ;
+	fprintf(stderr, "Detected MINSTKSIGSZ:%d\n", td->minsigstksz);
+
+	if (td->feats_required || td->feats_incompatible) {
+		td->feats_supported = 0;
+		/*
+		 * Checking for CPU required features using both the
+		 * auxval and the arm64 MRS Emulation to read sysregs.
+		 */
+		if (getauxval(AT_HWCAP) & HWCAP_SSBS)
+			td->feats_supported |= FEAT_SSBS;
+		if (getauxval(AT_HWCAP) & HWCAP_SVE)
+			td->feats_supported |= FEAT_SVE;
+		if (getauxval(AT_HWCAP2) & HWCAP2_SME)
+			td->feats_supported |= FEAT_SME;
+		if (getauxval(AT_HWCAP2) & HWCAP2_SME_FA64)
+			td->feats_supported |= FEAT_SME_FA64;
+		if (getauxval(AT_HWCAP2) & HWCAP2_SME2)
+			td->feats_supported |= FEAT_SME2;
+		if (getauxval(AT_HWCAP) & HWCAP_GCS)
+			td->feats_supported |= FEAT_GCS;
+		if (feats_ok(td)) {
+			if (td->feats_required & td->feats_supported)
+				fprintf(stderr,
+					"Required Features: [%s] supported\n",
+					feats_to_string(td->feats_required &
+							td->feats_supported));
+			if (!(td->feats_incompatible & td->feats_supported))
+				fprintf(stderr,
+					"Incompatible Features: [%s] absent\n",
+					feats_to_string(td->feats_incompatible));
+		} else {
+			if ((td->feats_required & td->feats_supported) !=
+			    td->feats_supported)
+				fprintf(stderr,
+					"Required Features: [%s] NOT supported\n",
+					feats_to_string(td->feats_required &
+							~td->feats_supported));
+			if (td->feats_incompatible & td->feats_supported)
+				fprintf(stderr,
+					"Incompatible Features: [%s] supported\n",
+					feats_to_string(td->feats_incompatible &
+							~td->feats_supported));
+
+
+			td->result = KSFT_SKIP;
+			return 0;
+		}
+	}
+
+	/* Perform test specific additional initialization */
+	if (td->init && !td->init(td)) {
+		fprintf(stderr, "FAILED Testcase initialization.\n");
+		return 0;
+	}
+	td->initialized = 1;
+	fprintf(stderr, "Testcase initialized.\n");
+
+	return 1;
+}
+
+int test_setup(struct tdescr *td)
+{
+	/* assert core invariants symptom of a rotten testcase */
+	assert(current);
+	assert(td);
+	assert(td->name);
+	assert(td->run);
+
+	/* Default result is FAIL if test setup fails */
+	td->result = KSFT_FAIL;
+	if (td->setup)
+		return td->setup(td);
+	else
+		return default_setup(td);
+}
+
+int test_run(struct tdescr *td)
+{
+	if (td->trigger)
+		return td->trigger(td);
+	else if (td->sig_trig)
+		return default_trigger(td);
+	else
+		return td->run(td, NULL, NULL);
+}
+
+void test_result(struct tdescr *td)
+{
+	if (td->initialized && td->result != KSFT_SKIP && td->check_result)
+		td->check_result(td);
+	default_result(td, 0);
+}
+
+void test_cleanup(struct tdescr *td)
+{
+	if (td->cleanup)
+		td->cleanup(td);
+}
diff --git a/tools/testing/selftests/arm64/signal/test_signals_utils.h b/tools/testing/selftests/arm64/signal/test_signals_utils.h
new file mode 100644
index 000000000000..36fc12b3cd60
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/test_signals_utils.h
@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+
+#ifndef __TEST_SIGNALS_UTILS_H__
+#define __TEST_SIGNALS_UTILS_H__
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/compiler.h>
+
+#include "test_signals.h"
+
+int test_init(struct tdescr *td);
+int test_setup(struct tdescr *td);
+void test_cleanup(struct tdescr *td);
+int test_run(struct tdescr *td);
+void test_result(struct tdescr *td);
+
+#ifndef __NR_prctl
+#define __NR_prctl 167
+#endif
+
+/*
+ * The prctl takes 1 argument but we need to ensure that the other
+ * values passed in registers to the syscall are zero since the kernel
+ * validates them.
+ */
+#define gcs_set_state(state)					\
+	({								\
+		register long _num  __asm__ ("x8") = __NR_prctl;	\
+		register long _arg1 __asm__ ("x0") =  PR_SET_SHADOW_STACK_STATUS; \
+		register long _arg2 __asm__ ("x1") = (long)(state);	\
+		register long _arg3 __asm__ ("x2") = 0;			\
+		register long _arg4 __asm__ ("x3") = 0;			\
+		register long _arg5 __asm__ ("x4") = 0;			\
+	                                                                      \
+		__asm__  volatile (					\
+			"svc #0\n"					\
+			: "=r"(_arg1)					\
+			: "r"(_arg1), "r"(_arg2),			\
+			  "r"(_arg3), "r"(_arg4),			\
+			  "r"(_arg5), "r"(_num)				\
+			: "memory", "cc"				\
+			);						\
+		_arg1;							\
+	})
+
+static inline __attribute__((always_inline)) uint64_t get_gcspr_el0(void)
+{
+	uint64_t val;
+
+	asm volatile("mrs %0, S3_3_C2_C5_1" : "=r" (val));
+
+	return val;
+}
+
+static inline bool feats_ok(struct tdescr *td)
+{
+	if (td->feats_incompatible & td->feats_supported)
+		return false;
+	return (td->feats_required & td->feats_supported) == td->feats_required;
+}
+
+/*
+ * Obtaining a valid and full-blown ucontext_t from userspace is tricky:
+ * libc getcontext does() not save all the regs and messes with some of
+ * them (pstate value in particular is not reliable).
+ *
+ * Here we use a service signal to grab the ucontext_t from inside a
+ * dedicated signal handler, since there, it is populated by Kernel
+ * itself in setup_sigframe(). The grabbed context is then stored and
+ * made available in td->live_uc.
+ *
+ * As service-signal is used a SIGTRAP induced by a 'brk' instruction,
+ * because here we have to avoid syscalls to trigger the signal since
+ * they would cause any SVE sigframe content (if any) to be removed.
+ *
+ * Anyway this function really serves a dual purpose:
+ *
+ * 1. grab a valid sigcontext into td->live_uc for result analysis: in
+ * such case it returns 1.
+ *
+ * 2. detect if, somehow, a previously grabbed live_uc context has been
+ * used actively with a sigreturn: in such a case the execution would have
+ * magically resumed in the middle of this function itself (seen_already==1):
+ * in such a case return 0, since in fact we have not just simply grabbed
+ * the context.
+ *
+ * This latter case is useful to detect when a fake_sigreturn test-case has
+ * unexpectedly survived without hitting a SEGV.
+ *
+ * Note that the case of runtime dynamically sized sigframes (like in SVE
+ * context) is still NOT addressed: sigframe size is supposed to be fixed
+ * at sizeof(ucontext_t).
+ */
+static __always_inline bool get_current_context(struct tdescr *td,
+						ucontext_t *dest_uc,
+						size_t dest_sz)
+{
+	static volatile bool seen_already;
+	int i;
+	char *uc = (char *)dest_uc;
+
+	assert(td && dest_uc);
+	/* it's a genuine invocation..reinit */
+	seen_already = 0;
+	td->live_uc_valid = 0;
+	td->live_sz = dest_sz;
+
+	/*
+	 * This is a memset() but we don't want the compiler to
+	 * optimise it into either instructions or a library call
+	 * which might be incompatible with streaming mode.
+	 */
+	for (i = 0; i < td->live_sz; i++) {
+		uc[i] = 0;
+		OPTIMIZER_HIDE_VAR(uc[0]);
+	}
+
+	td->live_uc = dest_uc;
+	/*
+	 * Grab ucontext_t triggering a SIGTRAP.
+	 *
+	 * Note that:
+	 * - live_uc_valid is declared volatile sig_atomic_t in
+	 *   struct tdescr since it will be changed inside the
+	 *   sig_copyctx handler
+	 * - the additional 'memory' clobber is there to avoid possible
+	 *   compiler's assumption on live_uc_valid and the content
+	 *   pointed by dest_uc, which are all changed inside the signal
+	 *   handler
+	 * - BRK causes a debug exception which is handled by the Kernel
+	 *   and finally causes the SIGTRAP signal to be delivered to this
+	 *   test thread. Since such delivery happens on the ret_to_user()
+	 *   /do_notify_resume() debug exception return-path, we are sure
+	 *   that the registered SIGTRAP handler has been run to completion
+	 *   before the execution path is restored here: as a consequence
+	 *   we can be sure that the volatile sig_atomic_t live_uc_valid
+	 *   carries a meaningful result. Being in a single thread context
+	 *   we'll also be sure that any access to memory modified by the
+	 *   handler (namely ucontext_t) will be visible once returned.
+	 * - note that since we are using a breakpoint instruction here
+	 *   to cause a SIGTRAP, the ucontext_t grabbed from the signal
+	 *   handler would naturally contain a PC pointing exactly to this
+	 *   BRK line, which means that, on return from the signal handler,
+	 *   or if we place the ucontext_t on the stack to fake a sigreturn,
+	 *   we'll end up in an infinite loop of BRK-SIGTRAP-handler.
+	 *   For this reason we take care to artificially move forward the
+	 *   PC to the next instruction while inside the signal handler.
+	 */
+	asm volatile ("brk #666"
+		      : "+m" (*dest_uc)
+		      :
+		      : "memory");
+
+	/*
+	 * If we were grabbing a streaming mode context then we may
+	 * have entered streaming mode behind the system's back and
+	 * libc or compiler generated code might decide to do
+	 * something invalid in streaming mode, or potentially even
+	 * the state of ZA.  Issue a SMSTOP to exit both now we have
+	 * grabbed the state.
+	 */
+	if (td->feats_supported & FEAT_SME)
+		asm volatile("msr S0_3_C4_C6_3, xzr");
+
+	/*
+	 * If we get here with seen_already==1 it implies the td->live_uc
+	 * context has been used to get back here....this probably means
+	 * a test has failed to cause a SEGV...anyway live_uc does not
+	 * point to a just acquired copy of ucontext_t...so return 0
+	 */
+	if (seen_already) {
+		fprintf(stdout,
+			"Unexpected successful sigreturn detected: live_uc is stale !\n");
+		return 0;
+	}
+	seen_already = 1;
+
+	return td->live_uc_valid;
+}
+
+int fake_sigreturn(void *sigframe, size_t sz, int misalign_bytes);
+#endif
diff --git a/tools/testing/selftests/arm64/signal/testcases/TODO b/tools/testing/selftests/arm64/signal/testcases/TODO
new file mode 100644
index 000000000000..1f7fba8194fe
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/TODO
@@ -0,0 +1 @@
+- Validate that register contents are saved and restored as expected.
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
new file mode 100644
index 000000000000..8c7f00ea9823
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_magic.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack including a BAD Unknown magic
+ * record: on sigreturn Kernel must spot this attempt and the test
+ * case is expected to be terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_bad_magic_run(struct tdescr *td,
+					siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *shead = GET_SF_RESV_HEAD(sf), *head;
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	/* need at least 2*HDR_SZ space: KSFT_BAD_MAGIC + terminator. */
+	head = get_starting_head(shead, HDR_SZ * 2, GET_SF_RESV_SIZE(sf), NULL);
+	if (!head)
+		return 0;
+
+	/*
+	 * use a well known NON existent bad magic...something
+	 * we should pretty sure won't be ever defined in Kernel
+	 */
+	head->magic = KSFT_BAD_MAGIC;
+	head->size = HDR_SZ;
+	write_terminator_record(GET_RESV_NEXT_HEAD(head));
+
+	ASSERT_BAD_CONTEXT(&sf.uc);
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_BAD_MAGIC",
+		.descr = "Trigger a sigreturn with a sigframe with a bad magic",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_bad_magic_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size.c
new file mode 100644
index 000000000000..1c03f6b638e0
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack including a bad record overflowing
+ * the __reserved space: on sigreturn Kernel must spot this attempt and
+ * the test case is expected to be terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+#define MIN_SZ_ALIGN	16
+
+static int fake_sigreturn_bad_size_run(struct tdescr *td,
+				       siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, need_sz, offset;
+	struct _aarch64_ctx *shead = GET_SF_RESV_HEAD(sf), *head;
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	/* at least HDR_SZ + bad sized esr_context needed */
+	need_sz = sizeof(struct esr_context) + HDR_SZ;
+	head = get_starting_head(shead, need_sz, resv_sz, &offset);
+	if (!head)
+		return 0;
+
+	/*
+	 * Use an esr_context to build a fake header with a
+	 * size greater then the free __reserved area minus HDR_SZ;
+	 * using ESR_MAGIC here since it is not checked for size nor
+	 * is limited to one instance.
+	 *
+	 * At first inject an additional normal esr_context
+	 */
+	head->magic = ESR_MAGIC;
+	head->size = sizeof(struct esr_context);
+	/* and terminate properly */
+	write_terminator_record(GET_RESV_NEXT_HEAD(head));
+	ASSERT_GOOD_CONTEXT(&sf.uc);
+
+	/*
+	 * now mess with fake esr_context size: leaving less space than
+	 * needed while keeping size value 16-aligned
+	 *
+	 * It must trigger a SEGV from Kernel on:
+	 *
+	 *	resv_sz - offset < sizeof(*head)
+	 */
+	/* at first set the maximum good 16-aligned size */
+	head->size = (resv_sz - offset - need_sz + MIN_SZ_ALIGN) & ~0xfUL;
+	/* plus a bit more of 16-aligned sized stuff */
+	head->size += MIN_SZ_ALIGN;
+	/* and terminate properly */
+	write_terminator_record(GET_RESV_NEXT_HEAD(head));
+	ASSERT_BAD_CONTEXT(&sf.uc);
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_BAD_SIZE",
+		.descr = "Triggers a sigreturn with a overrun __reserved area",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_bad_size_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size_for_magic0.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size_for_magic0.c
new file mode 100644
index 000000000000..bc22f64b544e
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_bad_size_for_magic0.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack including a badly sized terminator
+ * record: on sigreturn Kernel must spot this attempt and the test case
+ * is expected to be terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_bad_size_for_magic0_run(struct tdescr *td,
+						  siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *shead = GET_SF_RESV_HEAD(sf), *head;
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	/* at least HDR_SZ for the badly sized terminator. */
+	head = get_starting_head(shead, HDR_SZ, GET_SF_RESV_SIZE(sf), NULL);
+	if (!head)
+		return 0;
+
+	head->magic = 0;
+	head->size = HDR_SZ;
+	ASSERT_BAD_CONTEXT(&sf.uc);
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_BAD_SIZE_FOR_TERMINATOR",
+		.descr = "Trigger a sigreturn using non-zero size terminator",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_bad_size_for_magic0_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_duplicated_fpsimd.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_duplicated_fpsimd.c
new file mode 100644
index 000000000000..63e3906b631c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_duplicated_fpsimd.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack including an additional FPSIMD
+ * record: on sigreturn Kernel must spot this attempt and the test
+ * case is expected to be terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_duplicated_fpsimd_run(struct tdescr *td,
+						siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *shead = GET_SF_RESV_HEAD(sf), *head;
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	head = get_starting_head(shead, sizeof(struct fpsimd_context) + HDR_SZ,
+				 GET_SF_RESV_SIZE(sf), NULL);
+	if (!head)
+		return 0;
+
+	/* Add a spurious fpsimd_context */
+	head->magic = FPSIMD_MAGIC;
+	head->size = sizeof(struct fpsimd_context);
+	/* and terminate */
+	write_terminator_record(GET_RESV_NEXT_HEAD(head));
+
+	ASSERT_BAD_CONTEXT(&sf.uc);
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_DUPLICATED_FPSIMD",
+		.descr = "Triggers a sigreturn including two fpsimd_context",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_duplicated_fpsimd_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
new file mode 100644
index 000000000000..d00625ff12c2
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack at a misaligned SP: on sigreturn
+ * Kernel must spot this attempt and the test case is expected to be
+ * terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_misaligned_run(struct tdescr *td,
+					 siginfo_t *si, ucontext_t *uc)
+{
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	/* Forcing sigframe on misaligned SP (16 + 3) */
+	fake_sigreturn(&sf, sizeof(sf), 3);
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_MISALIGNED_SP",
+		.descr = "Triggers a sigreturn with a misaligned sigframe",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_misaligned_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c
new file mode 100644
index 000000000000..f805138cb20d
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack missing the mandatory FPSIMD
+ * record: on sigreturn Kernel must spot this attempt and the test
+ * case is expected to be terminated via SEGV.
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_missing_fpsimd_run(struct tdescr *td,
+					     siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, offset;
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+
+	/* just to fill the ucontext_t with something real */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	head = get_header(head, FPSIMD_MAGIC, resv_sz, &offset);
+	if (head && resv_sz - offset >= HDR_SZ) {
+		fprintf(stderr, "Mangling template header. Spare space:%zd\n",
+			resv_sz - offset);
+		/* Just overwrite fpsmid_context */
+		write_terminator_record(head);
+
+		ASSERT_BAD_CONTEXT(&sf.uc);
+		fake_sigreturn(&sf, sizeof(sf), 0);
+	}
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.name = "FAKE_SIGRETURN_MISSING_FPSIMD",
+		.descr = "Triggers a sigreturn with a missing fpsimd_context",
+		.sig_ok = SIGSEGV,
+		.timeout = 3,
+		.run = fake_sigreturn_missing_fpsimd_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c
new file mode 100644
index 000000000000..dfd6a2badf9f
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sme_change_vl.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Attempt to change the streaming SVE vector length in a signal
+ * handler, this is not supported and is expected to segfault.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static bool sme_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SME, 2);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static int fake_sigreturn_ssve_change_vl(struct tdescr *td,
+					 siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, offset;
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+	struct za_context *za;
+
+	/* Get a signal context with a SME ZA frame in it */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	head = get_header(head, ZA_MAGIC, resv_sz, &offset);
+	if (!head) {
+		fprintf(stderr, "No ZA context\n");
+		return 1;
+	}
+
+	if (head->size != sizeof(struct za_context)) {
+		fprintf(stderr, "Register data present, aborting\n");
+		return 1;
+	}
+
+	za = (struct za_context *)head;
+
+	/* No changes are supported; init left us at minimum VL so go to max */
+	fprintf(stderr, "Attempting to change VL from %d to %d\n",
+		za->vl, vls[0]);
+	za->vl = vls[0];
+
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "FAKE_SIGRETURN_SSVE_CHANGE",
+	.descr = "Attempt to change Streaming SVE VL",
+	.feats_required = FEAT_SME,
+	.sig_ok = SIGSEGV,
+	.timeout = 3,
+	.init = sme_get_vls,
+	.run = fake_sigreturn_ssve_change_vl,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
new file mode 100644
index 000000000000..e1ccf8f85a70
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_sve_change_vl.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Attempt to change the SVE vector length in a signal hander, this is not
+ * supported and is expected to segfault.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static bool sve_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SVE, 2);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static int fake_sigreturn_sve_change_vl(struct tdescr *td,
+					siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, offset;
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+	struct sve_context *sve;
+
+	/* Get a signal context with a SVE frame in it */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	head = get_header(head, SVE_MAGIC, resv_sz, &offset);
+	if (!head) {
+		fprintf(stderr, "No SVE context\n");
+		return 1;
+	}
+
+	if (head->size != sizeof(struct sve_context)) {
+		fprintf(stderr, "SVE register state active, skipping\n");
+		return 1;
+	}
+
+	sve = (struct sve_context *)head;
+
+	/* No changes are supported; init left us at minimum VL so go to max */
+	fprintf(stderr, "Attempting to change VL from %d to %d\n",
+		sve->vl, vls[0]);
+	sve->vl = vls[0];
+
+	fake_sigreturn(&sf, sizeof(sf), 0);
+
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "FAKE_SIGRETURN_SVE_CHANGE",
+	.descr = "Attempt to change SVE VL",
+	.feats_required = FEAT_SVE,
+	.sig_ok = SIGSEGV,
+	.timeout = 3,
+	.init = sve_get_vls,
+	.run = fake_sigreturn_sve_change_vl,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c b/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c
new file mode 100644
index 000000000000..e9d24685e741
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fpmr_siginfo.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 ARM Limited
+ *
+ * Verify that the FPMR register context in signal frames is set up as
+ * expected.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <asm/sigcontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+#define SYS_FPMR "S3_3_C4_C4_2"
+
+static uint64_t get_fpmr(void)
+{
+	uint64_t val;
+
+	asm volatile (
+		"mrs	%0, " SYS_FPMR "\n"
+		: "=r"(val)
+		:
+		: "cc");
+
+	return val;
+}
+
+int fpmr_present(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct fpmr_context *fpmr_ctx;
+	size_t offset;
+	bool in_sigframe;
+	bool have_fpmr;
+	__u64 orig_fpmr;
+
+	have_fpmr = getauxval(AT_HWCAP2) & HWCAP2_FPMR;
+	if (have_fpmr)
+		orig_fpmr = get_fpmr();
+
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	fpmr_ctx = (struct fpmr_context *)
+		get_header(head, FPMR_MAGIC, td->live_sz, &offset);
+
+	in_sigframe = fpmr_ctx != NULL;
+
+	fprintf(stderr, "FPMR sigframe %s on system %s FPMR\n",
+		in_sigframe ? "present" : "absent",
+		have_fpmr ? "with" : "without");
+
+	td->pass = (in_sigframe == have_fpmr);
+
+	if (have_fpmr && fpmr_ctx) {
+		if (fpmr_ctx->fpmr != orig_fpmr) {
+			fprintf(stderr, "FPMR in frame is %llx, was %llx\n",
+				fpmr_ctx->fpmr, orig_fpmr);
+			td->pass = false;
+		}
+	}
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "FPMR",
+	.descr = "Validate that FPMR is present as expected",
+	.timeout = 3,
+	.run = fpmr_present,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/gcs_exception_fault.c b/tools/testing/selftests/arm64/signal/testcases/gcs_exception_fault.c
new file mode 100644
index 000000000000..6228448b2ae7
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/gcs_exception_fault.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 ARM Limited
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+/*
+ * We should get this from asm/siginfo.h but the testsuite is being
+ * clever with redefining siginfo_t.
+ */
+#ifndef SEGV_CPERR
+#define SEGV_CPERR 10
+#endif
+
+static inline void gcsss1(uint64_t Xt)
+{
+	asm volatile (
+		"sys #3, C7, C7, #2, %0\n"
+		:
+		: "rZ" (Xt)
+		: "memory");
+}
+
+static int gcs_op_fault_trigger(struct tdescr *td)
+{
+	/*
+	 * The slot below our current GCS should be in a valid GCS but
+	 * must not have a valid cap in it.
+	 */
+	gcsss1(get_gcspr_el0() - 8);
+
+	return 0;
+}
+
+static int gcs_op_fault_signal(struct tdescr *td, siginfo_t *si,
+				  ucontext_t *uc)
+{
+	ASSERT_GOOD_CONTEXT(uc);
+
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "Invalid GCS operation",
+	.descr = "An invalid GCS operation generates the expected signal",
+	.feats_required = FEAT_GCS,
+	.timeout = 3,
+	.sig_ok = SIGSEGV,
+	.sig_ok_code = SEGV_CPERR,
+	.sanity_disabled = true,
+	.trigger = gcs_op_fault_trigger,
+	.run = gcs_op_fault_signal,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/gcs_frame.c b/tools/testing/selftests/arm64/signal/testcases/gcs_frame.c
new file mode 100644
index 000000000000..b405d82321da
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/gcs_frame.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 ARM Limited
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 64];
+} context;
+
+static int gcs_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct gcs_context *gcs;
+	unsigned long expected, gcspr;
+	uint64_t *u64_val;
+	int ret;
+
+	ret = prctl(PR_GET_SHADOW_STACK_STATUS, &expected, 0, 0, 0);
+	if (ret != 0) {
+		fprintf(stderr, "Unable to query GCS status\n");
+		return 1;
+	}
+
+	/* We expect a cap to be added to the GCS in the signal frame */
+	gcspr = get_gcspr_el0();
+	gcspr -= 8;
+	fprintf(stderr, "Expecting GCSPR_EL0 %lx\n", gcspr);
+
+	if (!get_current_context(td, &context.uc, sizeof(context))) {
+		fprintf(stderr, "Failed getting context\n");
+		return 1;
+	}
+
+	/* Ensure that the signal restore token was consumed */
+	u64_val = (uint64_t *)get_gcspr_el0() + 1;
+	if (*u64_val) {
+		fprintf(stderr, "GCS value at %p is %lx not 0\n",
+			u64_val, *u64_val);
+		return 1;
+	}
+
+	fprintf(stderr, "Got context\n");
+
+	head = get_header(head, GCS_MAGIC, GET_BUF_RESV_SIZE(context),
+			  &offset);
+	if (!head) {
+		fprintf(stderr, "No GCS context\n");
+		return 1;
+	}
+
+	gcs = (struct gcs_context *)head;
+
+	/* Basic size validation is done in get_current_context() */
+
+	if (gcs->features_enabled != expected) {
+		fprintf(stderr, "Features enabled %llx but expected %lx\n",
+			gcs->features_enabled, expected);
+		return 1;
+	}
+
+	if (gcs->gcspr != gcspr) {
+		fprintf(stderr, "Got GCSPR %llx but expected %lx\n",
+			gcs->gcspr, gcspr);
+		return 1;
+	}
+
+	fprintf(stderr, "GCS context validated\n");
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "GCS basics",
+	.descr = "Validate a GCS signal context",
+	.feats_required = FEAT_GCS,
+	.timeout = 3,
+	.run = gcs_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/gcs_write_fault.c b/tools/testing/selftests/arm64/signal/testcases/gcs_write_fault.c
new file mode 100644
index 000000000000..faeabb18c4b2
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/gcs_write_fault.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 ARM Limited
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <sys/mman.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static uint64_t *gcs_page;
+
+#ifndef __NR_map_shadow_stack
+#define __NR_map_shadow_stack 453
+#endif
+
+static bool alloc_gcs(struct tdescr *td)
+{
+	long page_size = sysconf(_SC_PAGE_SIZE);
+
+	gcs_page = (void *)syscall(__NR_map_shadow_stack, 0,
+				   page_size, 0);
+	if (gcs_page == MAP_FAILED) {
+		fprintf(stderr, "Failed to map %ld byte GCS: %d\n",
+			page_size, errno);
+		return false;
+	}
+
+	return true;
+}
+
+static int gcs_write_fault_trigger(struct tdescr *td)
+{
+	/* Verify that the page is readable (ie, not completely unmapped) */
+	fprintf(stderr, "Read value 0x%lx\n", gcs_page[0]);
+
+	/* A regular write should trigger a fault */
+	gcs_page[0] = EINVAL;
+
+	return 0;
+}
+
+static int gcs_write_fault_signal(struct tdescr *td, siginfo_t *si,
+				  ucontext_t *uc)
+{
+	ASSERT_GOOD_CONTEXT(uc);
+
+	return 1;
+}
+
+
+struct tdescr tde = {
+	.name = "GCS write fault",
+	.descr = "Normal writes to a GCS segfault",
+	.feats_required = FEAT_GCS,
+	.timeout = 3,
+	.sig_ok = SIGSEGV,
+	.sanity_disabled = true,
+	.init = alloc_gcs,
+	.trigger = gcs_write_fault_trigger,
+	.run = gcs_write_fault_signal,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_compat_toggle.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_compat_toggle.c
new file mode 100644
index 000000000000..2cb118b0ba05
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_compat_toggle.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the execution state bit: this attempt must be spotted by Kernel and
+ * the test case is expected to be terminated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si,
+				     ucontext_t *uc)
+{
+	ASSERT_GOOD_CONTEXT(uc);
+
+	/* This config should trigger a SIGSEGV by Kernel */
+	uc->uc_mcontext.pstate ^= PSR_MODE32_BIT;
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.sanity_disabled = true,
+		.name = "MANGLE_PSTATE_INVALID_STATE_TOGGLE",
+		.descr = "Mangling uc_mcontext with INVALID STATE_TOGGLE",
+		.sig_trig = SIGUSR1,
+		.sig_ok = SIGSEGV,
+		.run = mangle_invalid_pstate_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c
new file mode 100644
index 000000000000..434b82597007
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_daif_bits.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, mangling the
+ * DAIF bits in an illegal manner: this attempt must be spotted by Kernel
+ * and the test case is expected to be terminated via SEGV.
+ *
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si,
+				     ucontext_t *uc)
+{
+	ASSERT_GOOD_CONTEXT(uc);
+
+	/*
+	 * This config should trigger a SIGSEGV by Kernel when it checks
+	 * the sigframe consistency in valid_user_regs() routine.
+	 */
+	uc->uc_mcontext.pstate |= PSR_D_BIT | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT;
+
+	return 1;
+}
+
+struct tdescr tde = {
+		.sanity_disabled = true,
+		.name = "MANGLE_PSTATE_INVALID_DAIF_BITS",
+		.descr = "Mangling uc_mcontext with INVALID DAIF_BITS",
+		.sig_trig = SIGUSR1,
+		.sig_ok = SIGSEGV,
+		.run = mangle_invalid_pstate_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1h.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1h.c
new file mode 100644
index 000000000000..95f821abdf46
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1h.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(1h);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1t.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1t.c
new file mode 100644
index 000000000000..cc222d8a618a
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el1t.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(1t);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2h.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2h.c
new file mode 100644
index 000000000000..2188add7d28c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2h.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(2h);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2t.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2t.c
new file mode 100644
index 000000000000..df32dd5a479c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el2t.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(2t);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3h.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3h.c
new file mode 100644
index 000000000000..9e6829b7e5db
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3h.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(3h);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3t.c b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3t.c
new file mode 100644
index 000000000000..5685a4f10d06
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_el3t.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Try to mangle the ucontext from inside a signal handler, toggling
+ * the mode bit to escalate exception level: this attempt must be spotted
+ * by Kernel and the test case is expected to be termninated via SEGV.
+ */
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#include "mangle_pstate_invalid_mode_template.h"
+
+DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(3t);
diff --git a/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_template.h b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_template.h
new file mode 100644
index 000000000000..f5bf1804d858
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/mangle_pstate_invalid_mode_template.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Utility macro to ease definition of testcases toggling mode EL
+ */
+
+#define DEFINE_TESTCASE_MANGLE_PSTATE_INVALID_MODE(_mode)		\
+									\
+static int mangle_invalid_pstate_run(struct tdescr *td, siginfo_t *si,	\
+				     ucontext_t *uc)			\
+{									\
+	ASSERT_GOOD_CONTEXT(uc);					\
+									\
+	uc->uc_mcontext.pstate &= ~PSR_MODE_MASK;			\
+	uc->uc_mcontext.pstate |= PSR_MODE_EL ## _mode;			\
+									\
+	return 1;							\
+}									\
+									\
+struct tdescr tde = {							\
+		.sanity_disabled = true,				\
+		.name = "MANGLE_PSTATE_INVALID_MODE_EL"#_mode,		\
+		.descr = "Mangling uc_mcontext INVALID MODE EL"#_mode,	\
+		.sig_trig = SIGUSR1,					\
+		.sig_ok = SIGSEGV,					\
+		.run = mangle_invalid_pstate_run,			\
+}
diff --git a/tools/testing/selftests/arm64/signal/testcases/poe_siginfo.c b/tools/testing/selftests/arm64/signal/testcases/poe_siginfo.c
new file mode 100644
index 000000000000..36bd9940ee05
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/poe_siginfo.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 Arm Limited
+ *
+ * Verify that the POR_EL0 register context in signal frames is set up as
+ * expected.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <asm/sigcontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+#define SYS_POR_EL0 "S3_3_C10_C2_4"
+
+static uint64_t get_por_el0(void)
+{
+	uint64_t val;
+
+	asm volatile(
+		"mrs	%0, " SYS_POR_EL0 "\n"
+		: "=r"(val)
+		:
+		: );
+
+	return val;
+}
+
+int poe_present(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct poe_context *poe_ctx;
+	size_t offset;
+	bool in_sigframe;
+	bool have_poe;
+	__u64 orig_poe;
+
+	have_poe = getauxval(AT_HWCAP2) & HWCAP2_POE;
+	if (have_poe)
+		orig_poe = get_por_el0();
+
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	poe_ctx = (struct poe_context *)
+		get_header(head, POE_MAGIC, td->live_sz, &offset);
+
+	in_sigframe = poe_ctx != NULL;
+
+	fprintf(stderr, "POR_EL0 sigframe %s on system %s POE\n",
+		in_sigframe ? "present" : "absent",
+		have_poe ? "with" : "without");
+
+	td->pass = (in_sigframe == have_poe);
+
+	/*
+	 * Check that the value we read back was the one present at
+	 * the time that the signal was triggered.
+	 */
+	if (have_poe && poe_ctx) {
+		if (poe_ctx->por_el0 != orig_poe) {
+			fprintf(stderr, "POR_EL0 in frame is %llx, was %llx\n",
+				poe_ctx->por_el0, orig_poe);
+			td->pass = false;
+		}
+	}
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "POR_EL0",
+	.descr = "Validate that POR_EL0 is present as expected",
+	.timeout = 3,
+	.run = poe_present,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sme_trap_no_sm.c b/tools/testing/selftests/arm64/signal/testcases/sme_trap_no_sm.c
new file mode 100644
index 000000000000..f9d76ae32bba
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sme_trap_no_sm.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that using a streaming mode instruction without enabling it
+ * generates a SIGILL.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+int sme_trap_no_sm_trigger(struct tdescr *td)
+{
+	/* SMSTART ZA ; ADDHA ZA0.S, P0/M, P0/M, Z0.S */
+	asm volatile(".inst 0xd503457f ; .inst 0xc0900000");
+
+	return 0;
+}
+
+int sme_trap_no_sm_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "SME trap without SM",
+	.descr = "Check that we get a SIGILL if we use streaming mode without enabling it",
+	.timeout = 3,
+	.feats_required = FEAT_SME,   /* We need a SMSTART ZA */
+	.sanity_disabled = true,
+	.trigger = sme_trap_no_sm_trigger,
+	.run = sme_trap_no_sm_run,
+	.sig_ok = SIGILL,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sme_trap_non_streaming.c b/tools/testing/selftests/arm64/signal/testcases/sme_trap_non_streaming.c
new file mode 100644
index 000000000000..e469ae5348e3
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sme_trap_non_streaming.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that using an instruction not supported in streaming mode
+ * traps when in streaming mode.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+int sme_trap_non_streaming_trigger(struct tdescr *td)
+{
+	/*
+	 * The framework will handle SIGILL so we need to exit SM to
+	 * stop any other code triggering a further SIGILL down the
+	 * line from using a streaming-illegal instruction.
+	 */
+	asm volatile(".inst 0xd503437f; /* SMSTART ZA */ \
+		      cnt v0.16b, v0.16b; \
+                      .inst 0xd503447f  /* SMSTOP ZA */");
+
+	return 0;
+}
+
+int sme_trap_non_streaming_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "SME SM trap unsupported instruction",
+	.descr = "Check that we get a SIGILL if we use an unsupported instruction in streaming mode",
+	.feats_required = FEAT_SME,
+	.feats_incompatible = FEAT_SME_FA64,
+	.timeout = 3,
+	.sanity_disabled = true,
+	.trigger = sme_trap_non_streaming_trigger,
+	.run = sme_trap_non_streaming_run,
+	.sig_ok = SIGILL,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sme_trap_za.c b/tools/testing/selftests/arm64/signal/testcases/sme_trap_za.c
new file mode 100644
index 000000000000..3a7747af4715
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sme_trap_za.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that accessing ZA without enabling it generates a SIGILL.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+int sme_trap_za_trigger(struct tdescr *td)
+{
+	/* ZERO ZA */
+	asm volatile(".inst 0xc00800ff");
+
+	return 0;
+}
+
+int sme_trap_za_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	return 1;
+}
+
+struct tdescr tde = {
+	.name = "SME ZA trap",
+	.descr = "Check that we get a SIGILL if we access ZA without enabling",
+	.timeout = 3,
+	.sanity_disabled = true,
+	.trigger = sme_trap_za_trigger,
+	.run = sme_trap_za_run,
+	.sig_ok = SIGILL,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sme_vl.c b/tools/testing/selftests/arm64/signal/testcases/sme_vl.c
new file mode 100644
index 000000000000..75f387f2db81
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sme_vl.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Check that the SME vector length reported in signal contexts is the
+ * expected one.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+unsigned int vl;
+
+static bool get_sme_vl(struct tdescr *td)
+{
+	int ret = prctl(PR_SME_GET_VL);
+	if (ret == -1)
+		return false;
+
+	vl = ret;
+
+	return true;
+}
+
+static int sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, offset;
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+	struct za_context *za;
+
+	/* Get a signal context which should have a ZA frame in it */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	head = get_header(head, ZA_MAGIC, resv_sz, &offset);
+	if (!head) {
+		fprintf(stderr, "No ZA context\n");
+		return 1;
+	}
+	za = (struct za_context *)head;
+
+	if (za->vl != vl) {
+		fprintf(stderr, "ZA sigframe VL %u, expected %u\n",
+			za->vl, vl);
+		return 1;
+	} else {
+		fprintf(stderr, "got expected VL %u\n", vl);
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "SME VL",
+	.descr = "Check that we get the right SME VL reported",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.init = get_sme_vl,
+	.run = sme_vl,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c b/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c
new file mode 100644
index 000000000000..1dbca9afb13c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/ssve_regs.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that the streaming SVE register context in signal frames is
+ * set up as expected.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 64];
+} context;
+
+static bool sme_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SME, 1);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static void setup_ssve_regs(void)
+{
+	/* smstart sm; real data is TODO */
+	asm volatile(".inst 0xd503437f" : : : );
+}
+
+static int do_one_sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc,
+			 unsigned int vl)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct sve_context *ssve;
+	int ret;
+
+	fprintf(stderr, "Testing VL %d\n", vl);
+
+	ret = prctl(PR_SME_SET_VL, vl);
+	if (ret != vl) {
+		fprintf(stderr, "Failed to set VL, got %d\n", ret);
+		return 1;
+	}
+
+	/*
+	 * Get a signal context which should have a SVE frame and registers
+	 * in it.
+	 */
+	setup_ssve_regs();
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, SVE_MAGIC, GET_BUF_RESV_SIZE(context),
+			  &offset);
+	if (!head) {
+		fprintf(stderr, "No SVE context\n");
+		return 1;
+	}
+
+	ssve = (struct sve_context *)head;
+	if (ssve->vl != vl) {
+		fprintf(stderr, "Got VL %d, expected %d\n", ssve->vl, vl);
+		return 1;
+	}
+
+	if (!(ssve->flags & SVE_SIG_FLAG_SM)) {
+		fprintf(stderr, "SVE_SIG_FLAG_SM not set in SVE record\n");
+		return 1;
+	}
+
+	/* The actual size validation is done in get_current_context() */
+	fprintf(stderr, "Got expected size %u and VL %d\n",
+		head->size, ssve->vl);
+
+	if (get_svcr() != 0) {
+		fprintf(stderr, "Unexpected SVCR %lx\n", get_svcr());
+		return 1;
+	}
+
+	return 0;
+}
+
+static int sme_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	int i;
+
+	for (i = 0; i < nvls; i++) {
+		if (do_one_sme_vl(td, si, uc, vls[i]))
+			return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "Streaming SVE registers",
+	.descr = "Check that we get the right Streaming SVE registers reported",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.init = sme_get_vls,
+	.run = sme_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/ssve_za_regs.c b/tools/testing/selftests/arm64/signal/testcases/ssve_za_regs.c
new file mode 100644
index 000000000000..5557e116e973
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/ssve_za_regs.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that both the streaming SVE and ZA register context in
+ * signal frames is set up as expected when enabled simultaneously.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+static bool sme_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SME, 1);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static void setup_regs(void)
+{
+	/* smstart sm; real data is TODO */
+	asm volatile(".inst 0xd503437f" : : : );
+
+	/* smstart za; real data is TODO */
+	asm volatile(".inst 0xd503457f" : : : );
+}
+
+static char zeros[ZA_SIG_REGS_SIZE(SVE_VQ_MAX)];
+
+static int do_one_sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc,
+			 unsigned int vl)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct _aarch64_ctx *regs;
+	struct sve_context *ssve;
+	struct za_context *za;
+	int ret;
+
+	fprintf(stderr, "Testing VL %d\n", vl);
+
+	ret = prctl(PR_SME_SET_VL, vl);
+	if (ret != vl) {
+		fprintf(stderr, "Failed to set VL, got %d\n", ret);
+		return 1;
+	}
+
+	/*
+	 * Get a signal context which should have the SVE and ZA
+	 * frames in it.
+	 */
+	setup_regs();
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	regs = get_header(head, SVE_MAGIC, GET_BUF_RESV_SIZE(context),
+			  &offset);
+	if (!regs) {
+		fprintf(stderr, "No SVE context\n");
+		return 1;
+	}
+
+	ssve = (struct sve_context *)regs;
+	if (ssve->vl != vl) {
+		fprintf(stderr, "Got SSVE VL %d, expected %d\n", ssve->vl, vl);
+		return 1;
+	}
+
+	if (!(ssve->flags & SVE_SIG_FLAG_SM)) {
+		fprintf(stderr, "SVE_SIG_FLAG_SM not set in SVE record\n");
+		return 1;
+	}
+
+	fprintf(stderr, "Got expected SSVE size %u and VL %d\n",
+		regs->size, ssve->vl);
+
+	regs = get_header(head, ZA_MAGIC, GET_BUF_RESV_SIZE(context),
+			  &offset);
+	if (!regs) {
+		fprintf(stderr, "No ZA context\n");
+		return 1;
+	}
+
+	za = (struct za_context *)regs;
+	if (za->vl != vl) {
+		fprintf(stderr, "Got ZA VL %d, expected %d\n", za->vl, vl);
+		return 1;
+	}
+
+	fprintf(stderr, "Got expected ZA size %u and VL %d\n",
+		regs->size, za->vl);
+
+	/* We didn't load any data into ZA so it should be all zeros */
+	if (memcmp(zeros, (char *)za + ZA_SIG_REGS_OFFSET,
+		   ZA_SIG_REGS_SIZE(sve_vq_from_vl(za->vl))) != 0) {
+		fprintf(stderr, "ZA data invalid\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+static int sme_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	int i;
+
+	for (i = 0; i < nvls; i++) {
+		if (do_one_sme_vl(td, si, uc, vls[i]))
+			return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "Streaming SVE registers",
+	.descr = "Check that we get the right Streaming SVE registers reported",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.init = sme_get_vls,
+	.run = sme_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sve_regs.c b/tools/testing/selftests/arm64/signal/testcases/sve_regs.c
new file mode 100644
index 000000000000..8143eb1c58c1
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sve_regs.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that the SVE register context in signal frames is set up as
+ * expected.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 64];
+} context;
+
+static bool sve_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SVE, 1);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static void setup_sve_regs(void)
+{
+	/* RDVL x16, #1 so we should have SVE regs; real data is TODO */
+	asm volatile(".inst 0x04bf5030" : : : "x16" );
+}
+
+static int do_one_sve_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc,
+			 unsigned int vl)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct sve_context *sve;
+
+	fprintf(stderr, "Testing VL %d\n", vl);
+
+	if (prctl(PR_SVE_SET_VL, vl) == -1) {
+		fprintf(stderr, "Failed to set VL\n");
+		return 1;
+	}
+
+	/*
+	 * Get a signal context which should have a SVE frame and registers
+	 * in it.
+	 */
+	setup_sve_regs();
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, SVE_MAGIC, GET_BUF_RESV_SIZE(context),
+			  &offset);
+	if (!head) {
+		fprintf(stderr, "No SVE context\n");
+		return 1;
+	}
+
+	sve = (struct sve_context *)head;
+	if (sve->vl != vl) {
+		fprintf(stderr, "Got VL %d, expected %d\n", sve->vl, vl);
+		return 1;
+	}
+
+	/* The actual size validation is done in get_current_context() */
+	fprintf(stderr, "Got expected size %u and VL %d\n",
+		head->size, sve->vl);
+
+	return 0;
+}
+
+static int sve_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	int i;
+
+	for (i = 0; i < nvls; i++) {
+		if (do_one_sve_vl(td, si, uc, vls[i]))
+			return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "SVE registers",
+	.descr = "Check that we get the right SVE registers reported",
+	.feats_required = FEAT_SVE,
+	.timeout = 3,
+	.init = sve_get_vls,
+	.run = sve_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/sve_vl.c b/tools/testing/selftests/arm64/signal/testcases/sve_vl.c
new file mode 100644
index 000000000000..aa835acec062
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/sve_vl.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Check that the SVE vector length reported in signal contexts is the
+ * expected one.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+unsigned int vl;
+
+static bool get_sve_vl(struct tdescr *td)
+{
+	int ret = prctl(PR_SVE_GET_VL);
+	if (ret == -1)
+		return false;
+
+	vl = ret;
+
+	return true;
+}
+
+static int sve_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	size_t resv_sz, offset;
+	struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
+	struct sve_context *sve;
+
+	/* Get a signal context which should have a SVE frame in it */
+	if (!get_current_context(td, &sf.uc, sizeof(sf.uc)))
+		return 1;
+
+	resv_sz = GET_SF_RESV_SIZE(sf);
+	head = get_header(head, SVE_MAGIC, resv_sz, &offset);
+	if (!head) {
+		fprintf(stderr, "No SVE context\n");
+		return 1;
+	}
+	sve = (struct sve_context *)head;
+
+	if (sve->vl != vl) {
+		fprintf(stderr, "sigframe VL %u, expected %u\n",
+			sve->vl, vl);
+		return 1;
+	} else {
+		fprintf(stderr, "got expected VL %u\n", vl);
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "SVE VL",
+	.descr = "Check that we get the right SVE VL reported",
+	.feats_required = FEAT_SVE,
+	.timeout = 3,
+	.init = get_sve_vl,
+	.run = sve_vl,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.c b/tools/testing/selftests/arm64/signal/testcases/testcases.c
new file mode 100644
index 000000000000..0c1a6b26afac
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019 ARM Limited */
+
+#include <ctype.h>
+#include <string.h>
+
+#include "testcases.h"
+
+bool validate_extra_context(struct extra_context *extra, char **err,
+			    void **extra_data, size_t *extra_size)
+{
+	struct _aarch64_ctx *term;
+
+	if (!extra || !err)
+		return false;
+
+	fprintf(stderr, "Validating EXTRA...\n");
+	term = GET_RESV_NEXT_HEAD(&extra->head);
+	if (!term || term->magic || term->size) {
+		*err = "Missing terminator after EXTRA context";
+		return false;
+	}
+	if (extra->datap & 0x0fUL)
+		*err = "Extra DATAP misaligned";
+	else if (extra->size & 0x0fUL)
+		*err = "Extra SIZE misaligned";
+	else if (extra->datap != (uint64_t)term + 0x10UL)
+		*err = "Extra DATAP misplaced (not contiguous)";
+	if (*err)
+		return false;
+
+	*extra_data = (void *)extra->datap;
+	*extra_size = extra->size;
+
+	return true;
+}
+
+bool validate_sve_context(struct sve_context *sve, char **err)
+{
+	/* Size will be rounded up to a multiple of 16 bytes */
+	size_t regs_size
+		= ((SVE_SIG_CONTEXT_SIZE(sve_vq_from_vl(sve->vl)) + 15) / 16) * 16;
+
+	if (!sve || !err)
+		return false;
+
+	/* Either a bare sve_context or a sve_context followed by regs data */
+	if ((sve->head.size != sizeof(struct sve_context)) &&
+	    (sve->head.size != regs_size)) {
+		*err = "bad size for SVE context";
+		return false;
+	}
+
+	if (!sve_vl_valid(sve->vl)) {
+		*err = "SVE VL invalid";
+
+		return false;
+	}
+
+	return true;
+}
+
+bool validate_za_context(struct za_context *za, char **err)
+{
+	/* Size will be rounded up to a multiple of 16 bytes */
+	size_t regs_size
+		= ((ZA_SIG_CONTEXT_SIZE(sve_vq_from_vl(za->vl)) + 15) / 16) * 16;
+
+	if (!za || !err)
+		return false;
+
+	/* Either a bare za_context or a za_context followed by regs data */
+	if ((za->head.size != sizeof(struct za_context)) &&
+	    (za->head.size != regs_size)) {
+		*err = "bad size for ZA context";
+		return false;
+	}
+
+	if (!sve_vl_valid(za->vl)) {
+		*err = "SME VL in ZA context invalid";
+
+		return false;
+	}
+
+	return true;
+}
+
+bool validate_zt_context(struct zt_context *zt, char **err)
+{
+	if (!zt || !err)
+		return false;
+
+	/* If the context is present there should be at least one register */
+	if (zt->nregs == 0) {
+		*err = "no registers";
+		return false;
+	}
+
+	/* Size should agree with the number of registers */
+	if (zt->head.size != ZT_SIG_CONTEXT_SIZE(zt->nregs)) {
+		*err = "register count does not match size";
+		return false;
+	}
+
+	return true;
+}
+
+bool validate_reserved(ucontext_t *uc, size_t resv_sz, char **err)
+{
+	bool terminated = false;
+	size_t offs = 0;
+	int flags = 0;
+	int new_flags, i;
+	struct extra_context *extra = NULL;
+	struct sve_context *sve = NULL;
+	struct za_context *za = NULL;
+	struct zt_context *zt = NULL;
+	struct _aarch64_ctx *head =
+		(struct _aarch64_ctx *)uc->uc_mcontext.__reserved;
+	void *extra_data = NULL;
+	size_t extra_sz = 0;
+	char magic[4];
+
+	if (!err)
+		return false;
+	/* Walk till the end terminator verifying __reserved contents */
+	while (head && !terminated && offs < resv_sz) {
+		if ((uint64_t)head & 0x0fUL) {
+			*err = "Misaligned HEAD";
+			return false;
+		}
+
+		new_flags = 0;
+
+		switch (head->magic) {
+		case 0:
+			if (head->size) {
+				*err = "Bad size for terminator";
+			} else if (extra_data) {
+				/* End of main data, walking the extra data */
+				head = extra_data;
+				resv_sz = extra_sz;
+				offs = 0;
+
+				extra_data = NULL;
+				extra_sz = 0;
+				continue;
+			} else {
+				terminated = true;
+			}
+			break;
+		case FPSIMD_MAGIC:
+			if (flags & FPSIMD_CTX)
+				*err = "Multiple FPSIMD_MAGIC";
+			else if (head->size !=
+				 sizeof(struct fpsimd_context))
+				*err = "Bad size for fpsimd_context";
+			new_flags |= FPSIMD_CTX;
+			break;
+		case ESR_MAGIC:
+			if (head->size != sizeof(struct esr_context))
+				*err = "Bad size for esr_context";
+			break;
+		case POE_MAGIC:
+			if (head->size != sizeof(struct poe_context))
+				*err = "Bad size for poe_context";
+			break;
+		case TPIDR2_MAGIC:
+			if (head->size != sizeof(struct tpidr2_context))
+				*err = "Bad size for tpidr2_context";
+			break;
+		case SVE_MAGIC:
+			if (flags & SVE_CTX)
+				*err = "Multiple SVE_MAGIC";
+			/* Size is validated in validate_sve_context() */
+			sve = (struct sve_context *)head;
+			new_flags |= SVE_CTX;
+			break;
+		case ZA_MAGIC:
+			if (flags & ZA_CTX)
+				*err = "Multiple ZA_MAGIC";
+			/* Size is validated in validate_za_context() */
+			za = (struct za_context *)head;
+			new_flags |= ZA_CTX;
+			break;
+		case ZT_MAGIC:
+			if (flags & ZT_CTX)
+				*err = "Multiple ZT_MAGIC";
+			/* Size is validated in validate_za_context() */
+			zt = (struct zt_context *)head;
+			new_flags |= ZT_CTX;
+			break;
+		case FPMR_MAGIC:
+			if (flags & FPMR_CTX)
+				*err = "Multiple FPMR_MAGIC";
+			else if (head->size !=
+				 sizeof(struct fpmr_context))
+				*err = "Bad size for fpmr_context";
+			new_flags |= FPMR_CTX;
+			break;
+		case GCS_MAGIC:
+			if (flags & GCS_CTX)
+				*err = "Multiple GCS_MAGIC";
+			if (head->size != sizeof(struct gcs_context))
+				*err = "Bad size for gcs_context";
+			new_flags |= GCS_CTX;
+			break;
+		case EXTRA_MAGIC:
+			if (flags & EXTRA_CTX)
+				*err = "Multiple EXTRA_MAGIC";
+			else if (head->size !=
+				 sizeof(struct extra_context))
+				*err = "Bad size for extra_context";
+			new_flags |= EXTRA_CTX;
+			extra = (struct extra_context *)head;
+			break;
+		case KSFT_BAD_MAGIC:
+			/*
+			 * This is a BAD magic header defined
+			 * artificially by a testcase and surely
+			 * unknown to the Kernel parse_user_sigframe().
+			 * It MUST cause a Kernel induced SEGV
+			 */
+			*err = "BAD MAGIC !";
+			break;
+		default:
+			/*
+			 * A still unknown Magic: potentially freshly added
+			 * to the Kernel code and still unknown to the
+			 * tests.  Magic numbers are supposed to be allocated
+			 * as somewhat meaningful ASCII strings so try to
+			 * print as such as well as the raw number.
+			 */
+			memcpy(magic, &head->magic, sizeof(magic));
+			for (i = 0; i < sizeof(magic); i++)
+				if (!isalnum(magic[i]))
+					magic[i] = '?';
+
+			fprintf(stdout,
+				"SKIP Unknown MAGIC: 0x%X (%c%c%c%c) - Is KSFT arm64/signal up to date ?\n",
+				head->magic,
+				magic[3], magic[2], magic[1], magic[0]);
+			break;
+		}
+
+		if (*err)
+			return false;
+
+		offs += head->size;
+		if (resv_sz < offs + sizeof(*head)) {
+			*err = "HEAD Overrun";
+			return false;
+		}
+
+		if (new_flags & EXTRA_CTX)
+			if (!validate_extra_context(extra, err,
+						    &extra_data, &extra_sz))
+				return false;
+		if (new_flags & SVE_CTX)
+			if (!validate_sve_context(sve, err))
+				return false;
+		if (new_flags & ZA_CTX)
+			if (!validate_za_context(za, err))
+				return false;
+		if (new_flags & ZT_CTX)
+			if (!validate_zt_context(zt, err))
+				return false;
+
+		flags |= new_flags;
+
+		head = GET_RESV_NEXT_HEAD(head);
+	}
+
+	if (terminated && !(flags & FPSIMD_CTX)) {
+		*err = "Missing FPSIMD";
+		return false;
+	}
+
+	if (terminated && (flags & ZT_CTX) && !(flags & ZA_CTX)) {
+		*err = "ZT context but no ZA context";
+		return false;
+	}
+
+	return true;
+}
+
+/*
+ * This function walks through the records inside the provided reserved area
+ * trying to find enough space to fit @need_sz bytes: if not enough space is
+ * available and an extra_context record is present, it throws away the
+ * extra_context record.
+ *
+ * It returns a pointer to a new header where it is possible to start storing
+ * our need_sz bytes.
+ *
+ * @shead: points to the start of reserved area
+ * @need_sz: needed bytes
+ * @resv_sz: reserved area size in bytes
+ * @offset: if not null, this will be filled with the offset of the return
+ *	    head pointer from @shead
+ *
+ * @return: pointer to a new head where to start storing need_sz bytes, or
+ *	    NULL if space could not be made available.
+ */
+struct _aarch64_ctx *get_starting_head(struct _aarch64_ctx *shead,
+				       size_t need_sz, size_t resv_sz,
+				       size_t *offset)
+{
+	size_t offs = 0;
+	struct _aarch64_ctx *head;
+
+	head = get_terminator(shead, resv_sz, &offs);
+	/* not found a terminator...no need to update offset if any */
+	if (!head)
+		return head;
+	if (resv_sz - offs < need_sz) {
+		fprintf(stderr, "Low on space:%zd. Discarding extra_context.\n",
+			resv_sz - offs);
+		head = get_header(shead, EXTRA_MAGIC, resv_sz, &offs);
+		if (!head || resv_sz - offs < need_sz) {
+			fprintf(stderr,
+				"Failed to reclaim space on sigframe.\n");
+			return NULL;
+		}
+	}
+
+	fprintf(stderr, "Available space:%zd\n", resv_sz - offs);
+	if (offset)
+		*offset = offs;
+	return head;
+}
diff --git a/tools/testing/selftests/arm64/signal/testcases/testcases.h b/tools/testing/selftests/arm64/signal/testcases/testcases.h
new file mode 100644
index 000000000000..98b97efdda23
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/testcases.h
@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2019 ARM Limited */
+#ifndef __TESTCASES_H__
+#define __TESTCASES_H__
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <signal.h>
+
+/* Architecture specific sigframe definitions */
+#include <asm/sigcontext.h>
+
+#define FPSIMD_CTX	(1 << 0)
+#define SVE_CTX		(1 << 1)
+#define ZA_CTX		(1 << 2)
+#define EXTRA_CTX	(1 << 3)
+#define ZT_CTX		(1 << 4)
+#define FPMR_CTX	(1 << 5)
+#define GCS_CTX		(1 << 6)
+
+#define KSFT_BAD_MAGIC	0xdeadbeef
+
+#define HDR_SZ \
+	sizeof(struct _aarch64_ctx)
+
+#define GET_UC_RESV_HEAD(uc) \
+	(struct _aarch64_ctx *)(&(uc->uc_mcontext.__reserved))
+
+#define GET_SF_RESV_HEAD(sf) \
+	(struct _aarch64_ctx *)(&(sf).uc.uc_mcontext.__reserved)
+
+#define GET_SF_RESV_SIZE(sf) \
+	sizeof((sf).uc.uc_mcontext.__reserved)
+
+#define GET_BUF_RESV_HEAD(buf) \
+	(struct _aarch64_ctx *)(&(buf).uc.uc_mcontext.__reserved)
+
+#define GET_BUF_RESV_SIZE(buf) \
+	(sizeof(buf) - sizeof(buf.uc) +	\
+	 sizeof((buf).uc.uc_mcontext.__reserved))
+
+#define GET_UCP_RESV_SIZE(ucp) \
+	sizeof((ucp)->uc_mcontext.__reserved)
+
+#define ASSERT_BAD_CONTEXT(uc) do {					\
+	char *err = NULL;						\
+	if (!validate_reserved((uc), GET_UCP_RESV_SIZE((uc)), &err)) {	\
+		if (err)						\
+			fprintf(stderr,					\
+				"Using badly built context - ERR: %s\n",\
+				err);					\
+	} else {							\
+		abort();						\
+	}								\
+} while (0)
+
+#define ASSERT_GOOD_CONTEXT(uc) do {					 \
+	char *err = NULL;						 \
+	if (!validate_reserved((uc), GET_UCP_RESV_SIZE((uc)), &err)) {	 \
+		if (err)						 \
+			fprintf(stderr,					 \
+				"Detected BAD context - ERR: %s\n", err);\
+		abort();						 \
+	} else {							 \
+		fprintf(stderr, "uc context validated.\n");		 \
+	}								 \
+} while (0)
+
+/*
+ * A simple record-walker for __reserved area: it walks through assuming
+ * only to find a proper struct __aarch64_ctx header descriptor.
+ *
+ * Instead it makes no assumptions on the content and ordering of the
+ * records, any needed bounds checking must be enforced by the caller
+ * if wanted: this way can be used by caller on any maliciously built bad
+ * contexts.
+ *
+ * head->size accounts both for payload and header _aarch64_ctx size !
+ */
+#define GET_RESV_NEXT_HEAD(h) \
+	(struct _aarch64_ctx *)((char *)(h) + (h)->size)
+
+struct fake_sigframe {
+	siginfo_t	info;
+	ucontext_t	uc;
+};
+
+
+bool validate_reserved(ucontext_t *uc, size_t resv_sz, char **err);
+
+static inline struct _aarch64_ctx *get_header(struct _aarch64_ctx *head, uint32_t magic,
+				size_t resv_sz, size_t *offset)
+{
+	size_t offs = 0;
+	struct _aarch64_ctx *found = NULL;
+
+	if (!head || resv_sz < HDR_SZ)
+		return found;
+
+	while (offs <= resv_sz - HDR_SZ &&
+	       head->magic != magic && head->magic) {
+		offs += head->size;
+		head = GET_RESV_NEXT_HEAD(head);
+	}
+	if (head->magic == magic) {
+		found = head;
+		if (offset)
+			*offset = offs;
+	}
+
+	return found;
+}
+
+
+static inline struct _aarch64_ctx *get_terminator(struct _aarch64_ctx *head,
+						  size_t resv_sz,
+						  size_t *offset)
+{
+	return get_header(head, 0, resv_sz, offset);
+}
+
+static inline void write_terminator_record(struct _aarch64_ctx *tail)
+{
+	if (tail) {
+		tail->magic = 0;
+		tail->size = 0;
+	}
+}
+
+struct _aarch64_ctx *get_starting_head(struct _aarch64_ctx *shead,
+				       size_t need_sz, size_t resv_sz,
+				       size_t *offset);
+#endif
diff --git a/tools/testing/selftests/arm64/signal/testcases/tpidr2_restore.c b/tools/testing/selftests/arm64/signal/testcases/tpidr2_restore.c
new file mode 100644
index 000000000000..f9a86c00c28c
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/tpidr2_restore.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 ARM Limited
+ *
+ * Verify that the TPIDR2 register context in signal frames is restored.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <asm/sigcontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+#define SYS_TPIDR2 "S3_3_C13_C0_5"
+
+static uint64_t get_tpidr2(void)
+{
+	uint64_t val;
+
+	asm volatile (
+		"mrs	%0, " SYS_TPIDR2 "\n"
+		: "=r"(val)
+		:
+		: "cc");
+
+	return val;
+}
+
+static void set_tpidr2(uint64_t val)
+{
+	asm volatile (
+		"msr	" SYS_TPIDR2 ", %0\n"
+		:
+		: "r"(val)
+		: "cc");
+}
+
+
+static uint64_t initial_tpidr2;
+
+static bool save_tpidr2(struct tdescr *td)
+{
+	initial_tpidr2 = get_tpidr2();
+	fprintf(stderr, "Initial TPIDR2: %lx\n", initial_tpidr2);
+
+	return true;
+}
+
+static int modify_tpidr2(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	uint64_t my_tpidr2 = get_tpidr2();
+
+	my_tpidr2++;
+	fprintf(stderr, "Setting TPIDR2 to %lx\n", my_tpidr2);
+	set_tpidr2(my_tpidr2);
+
+	return 0;
+}
+
+static void check_tpidr2(struct tdescr *td)
+{
+	uint64_t tpidr2 = get_tpidr2();
+
+	td->pass = tpidr2 == initial_tpidr2;
+
+	if (td->pass)
+		fprintf(stderr, "TPIDR2 restored\n");
+	else
+		fprintf(stderr, "TPIDR2 was %lx but is now %lx\n",
+			initial_tpidr2, tpidr2);
+}
+
+struct tdescr tde = {
+	.name = "TPIDR2 restore",
+	.descr = "Validate that TPIDR2 is restored from the sigframe",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.sig_trig = SIGUSR1,
+	.init = save_tpidr2,
+	.run = modify_tpidr2,
+	.check_result = check_tpidr2,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/tpidr2_siginfo.c b/tools/testing/selftests/arm64/signal/testcases/tpidr2_siginfo.c
new file mode 100644
index 000000000000..6a2c82bf7ead
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/tpidr2_siginfo.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022 ARM Limited
+ *
+ * Verify that the TPIDR2 register context in signal frames is set up as
+ * expected.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <asm/sigcontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+#define SYS_TPIDR2 "S3_3_C13_C0_5"
+
+static uint64_t get_tpidr2(void)
+{
+	uint64_t val;
+
+	asm volatile (
+		"mrs	%0, " SYS_TPIDR2 "\n"
+		: "=r"(val)
+		:
+		: "cc");
+
+	return val;
+}
+
+int tpidr2_present(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct tpidr2_context *tpidr2_ctx;
+	size_t offset;
+	bool in_sigframe;
+	bool have_sme;
+	__u64 orig_tpidr2;
+
+	have_sme = getauxval(AT_HWCAP2) & HWCAP2_SME;
+	if (have_sme)
+		orig_tpidr2 = get_tpidr2();
+
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	tpidr2_ctx = (struct tpidr2_context *)
+		get_header(head, TPIDR2_MAGIC, td->live_sz, &offset);
+
+	in_sigframe = tpidr2_ctx != NULL;
+
+	fprintf(stderr, "TPIDR2 sigframe %s on system %s SME\n",
+		in_sigframe ? "present" : "absent",
+		have_sme ? "with" : "without");
+
+	td->pass = (in_sigframe == have_sme);
+
+	/*
+	 * Check that the value we read back was the one present at
+	 * the time that the signal was triggered.  TPIDR2 is owned by
+	 * libc so we can't safely choose the value and it is possible
+	 * that we may need to revisit this in future if something
+	 * starts deciding to set a new TPIDR2 between us reading and
+	 * the signal.
+	 */
+	if (have_sme && tpidr2_ctx) {
+		if (tpidr2_ctx->tpidr2 != orig_tpidr2) {
+			fprintf(stderr, "TPIDR2 in frame is %llx, was %llx\n",
+				tpidr2_ctx->tpidr2, orig_tpidr2);
+			td->pass = false;
+		}
+	}
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "TPIDR2",
+	.descr = "Validate that TPIDR2 is present as expected",
+	.timeout = 3,
+	.run = tpidr2_present,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/za_no_regs.c b/tools/testing/selftests/arm64/signal/testcases/za_no_regs.c
new file mode 100644
index 000000000000..ce26e9c2fa5e
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/za_no_regs.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that the ZA register context in signal frames is set up as
+ * expected.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+static bool sme_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SME, 1);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static int do_one_sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc,
+			 unsigned int vl)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct za_context *za;
+
+	fprintf(stderr, "Testing VL %d\n", vl);
+
+	if (prctl(PR_SME_SET_VL, vl) != vl) {
+		fprintf(stderr, "Failed to set VL\n");
+		return 1;
+	}
+
+	/*
+	 * Get a signal context which should have a SVE frame and registers
+	 * in it.
+	 */
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, ZA_MAGIC, GET_BUF_RESV_SIZE(context), &offset);
+	if (!head) {
+		fprintf(stderr, "No ZA context\n");
+		return 1;
+	}
+
+	za = (struct za_context *)head;
+	if (za->vl != vl) {
+		fprintf(stderr, "Got VL %d, expected %d\n", za->vl, vl);
+		return 1;
+	}
+
+	if (head->size != ZA_SIG_REGS_OFFSET) {
+		fprintf(stderr, "Context size %u, expected %lu\n",
+			head->size, ZA_SIG_REGS_OFFSET);
+		return 1;
+	}
+
+	/* The actual size validation is done in get_current_context() */
+	fprintf(stderr, "Got expected size %u and VL %d\n",
+		head->size, za->vl);
+
+	return 0;
+}
+
+static int sme_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	int i;
+
+	for (i = 0; i < nvls; i++) {
+		if (do_one_sme_vl(td, si, uc, vls[i]))
+			return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "ZA registers - ZA disabled",
+	.descr = "Check ZA context with ZA disabled",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.init = sme_get_vls,
+	.run = sme_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/za_regs.c b/tools/testing/selftests/arm64/signal/testcases/za_regs.c
new file mode 100644
index 000000000000..badaead5326a
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/za_regs.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that the ZA register context in signal frames is set up as
+ * expected.
+ */
+
+#include <kselftest.h>
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "sve_helpers.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+static bool sme_get_vls(struct tdescr *td)
+{
+	int res = sve_fill_vls(VLS_USE_SME, 1);
+
+	if (!res)
+		return true;
+
+	if (res == KSFT_SKIP)
+		td->result = KSFT_SKIP;
+
+	return false;
+}
+
+static void setup_za_regs(void)
+{
+	/* smstart za; real data is TODO */
+	asm volatile(".inst 0xd503457f" : : : );
+}
+
+static char zeros[ZA_SIG_REGS_SIZE(SVE_VQ_MAX)];
+
+static int do_one_sme_vl(struct tdescr *td, siginfo_t *si, ucontext_t *uc,
+			 unsigned int vl)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct za_context *za;
+
+	fprintf(stderr, "Testing VL %d\n", vl);
+
+	if (prctl(PR_SME_SET_VL, vl) != vl) {
+		fprintf(stderr, "Failed to set VL\n");
+		return 1;
+	}
+
+	/*
+	 * Get a signal context which should have a SVE frame and registers
+	 * in it.
+	 */
+	setup_za_regs();
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, ZA_MAGIC, GET_BUF_RESV_SIZE(context), &offset);
+	if (!head) {
+		fprintf(stderr, "No ZA context\n");
+		return 1;
+	}
+
+	za = (struct za_context *)head;
+	if (za->vl != vl) {
+		fprintf(stderr, "Got VL %d, expected %d\n", za->vl, vl);
+		return 1;
+	}
+
+	if (head->size != ZA_SIG_CONTEXT_SIZE(sve_vq_from_vl(vl))) {
+		fprintf(stderr, "ZA context size %u, expected %lu\n",
+			head->size, ZA_SIG_CONTEXT_SIZE(sve_vq_from_vl(vl)));
+		return 1;
+	}
+
+	fprintf(stderr, "Got expected size %u and VL %d\n",
+		head->size, za->vl);
+
+	/* We didn't load any data into ZA so it should be all zeros */
+	if (memcmp(zeros, (char *)za + ZA_SIG_REGS_OFFSET,
+		   ZA_SIG_REGS_SIZE(sve_vq_from_vl(za->vl))) != 0) {
+		fprintf(stderr, "ZA data invalid\n");
+		return 1;
+	}
+
+	if (get_svcr() != 0) {
+		fprintf(stderr, "Unexpected SVCR %lx\n", get_svcr());
+		return 1;
+	}
+
+	return 0;
+}
+
+static int sme_regs(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	int i;
+
+	for (i = 0; i < nvls; i++) {
+		if (do_one_sme_vl(td, si, uc, vls[i]))
+			return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "ZA register",
+	.descr = "Check that we get the right ZA registers reported",
+	.feats_required = FEAT_SME,
+	.timeout = 3,
+	.init = sme_get_vls,
+	.run = sme_regs,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/zt_no_regs.c b/tools/testing/selftests/arm64/signal/testcases/zt_no_regs.c
new file mode 100644
index 000000000000..34f69bcf821e
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/zt_no_regs.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that using an instruction not supported in streaming mode
+ * traps when in streaming mode.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+int zt_no_regs_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+
+	/*
+	 * Get a signal context which should not have a ZT frame and
+	 * registers in it.
+	 */
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, ZT_MAGIC, GET_BUF_RESV_SIZE(context), &offset);
+	if (head) {
+		fprintf(stderr, "Got unexpected ZT context\n");
+		return 1;
+	}
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "ZT register data not present",
+	.descr = "Validate that ZT is not present when ZA is disabled",
+	.feats_required = FEAT_SME2,
+	.timeout = 3,
+	.sanity_disabled = true,
+	.run = zt_no_regs_run,
+};
diff --git a/tools/testing/selftests/arm64/signal/testcases/zt_regs.c b/tools/testing/selftests/arm64/signal/testcases/zt_regs.c
new file mode 100644
index 000000000000..2e384d731618
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/zt_regs.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021 ARM Limited
+ *
+ * Verify that using an instruction not supported in streaming mode
+ * traps when in streaming mode.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+#include <sys/prctl.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+static union {
+	ucontext_t uc;
+	char buf[1024 * 128];
+} context;
+
+static void enable_za(void)
+{
+	/* smstart za; real data is TODO */
+	asm volatile(".inst 0xd503457f" : : : );
+}
+
+int zt_regs_run(struct tdescr *td, siginfo_t *si, ucontext_t *uc)
+{
+	size_t offset;
+	struct _aarch64_ctx *head = GET_BUF_RESV_HEAD(context);
+	struct zt_context *zt;
+	char *zeros;
+
+	/*
+	 * Get a signal context which should have a ZT frame and registers
+	 * in it.
+	 */
+	enable_za();
+	if (!get_current_context(td, &context.uc, sizeof(context)))
+		return 1;
+
+	head = get_header(head, ZT_MAGIC, GET_BUF_RESV_SIZE(context), &offset);
+	if (!head) {
+		fprintf(stderr, "No ZT context\n");
+		return 1;
+	}
+
+	zt = (struct zt_context *)head;
+	if (zt->nregs == 0) {
+		fprintf(stderr, "Got context with no registers\n");
+		return 1;
+	}
+
+	fprintf(stderr, "Got expected size %u for %d registers\n",
+		head->size, zt->nregs);
+
+	/* We didn't load any data into ZT so it should be all zeros */
+	zeros = malloc(ZT_SIG_REGS_SIZE(zt->nregs));
+	if (!zeros) {
+		fprintf(stderr, "Out of memory, nregs=%u\n", zt->nregs);
+		return 1;
+	}
+	memset(zeros, 0, ZT_SIG_REGS_SIZE(zt->nregs));
+
+	if (memcmp(zeros, (char *)zt + ZT_SIG_REGS_OFFSET,
+		   ZT_SIG_REGS_SIZE(zt->nregs)) != 0) {
+		fprintf(stderr, "ZT data invalid\n");
+		free(zeros);
+		return 1;
+	}
+
+	free(zeros);
+
+	td->pass = 1;
+
+	return 0;
+}
+
+struct tdescr tde = {
+	.name = "ZT register data",
+	.descr = "Validate that ZT is present and has data when ZA is enabled",
+	.feats_required = FEAT_SME2,
+	.timeout = 3,
+	.sanity_disabled = true,
+	.run = zt_regs_run,
+};
diff --git a/tools/testing/selftests/arm64/tags/.gitignore b/tools/testing/selftests/arm64/tags/.gitignore
new file mode 100644
index 000000000000..f4f6c5112463
--- /dev/null
+++ b/tools/testing/selftests/arm64/tags/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+tags_test
diff --git a/tools/testing/selftests/arm64/tags/Makefile b/tools/testing/selftests/arm64/tags/Makefile
new file mode 100644
index 000000000000..0a77f35295fb
--- /dev/null
+++ b/tools/testing/selftests/arm64/tags/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += $(KHDR_INCLUDES)
+TEST_GEN_PROGS := tags_test
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/arm64/tags/tags_test.c b/tools/testing/selftests/arm64/tags/tags_test.c
new file mode 100644
index 000000000000..375ab47f0edb
--- /dev/null
+++ b/tools/testing/selftests/arm64/tags/tags_test.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/prctl.h>
+#include <sys/utsname.h>
+#include "kselftest.h"
+
+#define SHIFT_TAG(tag)		((uint64_t)(tag) << 56)
+#define SET_TAG(ptr, tag)	(((uint64_t)(ptr) & ~SHIFT_TAG(0xff)) | \
+					SHIFT_TAG(tag))
+
+int main(void)
+{
+	static int tbi_enabled = 0;
+	unsigned long tag = 0;
+	struct utsname *ptr;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	if (prctl(PR_SET_TAGGED_ADDR_CTRL, PR_TAGGED_ADDR_ENABLE, 0, 0, 0) == 0)
+		tbi_enabled = 1;
+	ptr = (struct utsname *)malloc(sizeof(*ptr));
+	if (!ptr)
+		ksft_exit_fail_perror("Failed to allocate utsname buffer");
+
+	if (tbi_enabled)
+		tag = 0x42;
+	ptr = (struct utsname *)SET_TAG(ptr, tag);
+	ksft_test_result(!uname(ptr), "Syscall successful with tagged address\n");
+	free(ptr);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
new file mode 100644
index 000000000000..19c1638e312a
--- /dev/null
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -0,0 +1,47 @@
+# SPDX-License-Identifier: GPL-2.0-only
+bpftool
+bpf-helpers*
+bpf-syscall*
+test_verifier
+test_maps
+test_lru_map
+test_tag
+FEATURE-DUMP.libbpf
+FEATURE-DUMP.selftests
+fixdep
+/test_progs
+/test_progs-no_alu32
+/test_progs-bpf_gcc
+/test_progs-cpuv4
+test_verifier_log
+feature
+urandom_read
+test_sockmap
+test_lirc_mode2_user
+flow_dissector_load
+test_tcpnotify_user
+test_libbpf
+xdping
+test_cpp
+test_progs_verification_cert
+*.d
+*.subskel.h
+*.skel.h
+*.lskel.h
+/no_alu32
+/bpf_gcc
+/cpuv4
+/host-tools
+/tools
+/bench
+/veristat
+/sign-file
+/uprobe_multi
+*.ko
+*.tmp
+xskxceiver
+xdp_redirect_multi
+xdp_synproxy
+xdp_hw_metadata
+xdp_features
+verification_cert.h
diff --git a/tools/testing/selftests/bpf/DENYLIST b/tools/testing/selftests/bpf/DENYLIST
new file mode 100644
index 000000000000..f748f2c33b22
--- /dev/null
+++ b/tools/testing/selftests/bpf/DENYLIST
@@ -0,0 +1,7 @@
+# TEMPORARY
+# Alphabetical order
+get_stack_raw_tp    # spams with kernel warnings until next bpf -> bpf-next merge
+stacktrace_build_id
+stacktrace_build_id_nmi
+task_fd_query_rawtp
+varlen
diff --git a/tools/testing/selftests/bpf/DENYLIST.riscv64 b/tools/testing/selftests/bpf/DENYLIST.riscv64
new file mode 100644
index 000000000000..4fc4dfdde293
--- /dev/null
+++ b/tools/testing/selftests/bpf/DENYLIST.riscv64
@@ -0,0 +1,3 @@
+# riscv64 deny list for BPF CI and local vmtest
+exceptions					# JIT does not support exceptions
+tailcalls/tailcall_bpf2bpf*			# JIT does not support mixing bpf2bpf and tailcalls
diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x
new file mode 100644
index 000000000000..a17baf8c6fd7
--- /dev/null
+++ b/tools/testing/selftests/bpf/DENYLIST.s390x
@@ -0,0 +1,4 @@
+# TEMPORARY
+# Alphabetical order
+get_stack_raw_tp                         # user_stack corrupted user stack                                             (no backchain userspace)
+stacktrace_build_id                      # compare_map_keys stackid_hmap vs. stackmap err -2 errno 2                   (?)
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
new file mode 100644
index 000000000000..b7030a6e2e76
--- /dev/null
+++ b/tools/testing/selftests/bpf/Makefile
@@ -0,0 +1,908 @@
+# SPDX-License-Identifier: GPL-2.0
+include ../../../build/Build.include
+include ../../../scripts/Makefile.arch
+include ../../../scripts/Makefile.include
+
+CXX ?= $(CROSS_COMPILE)g++
+
+CURDIR := $(abspath .)
+TOOLSDIR := $(abspath ../../..)
+LIBDIR := $(TOOLSDIR)/lib
+BPFDIR := $(LIBDIR)/bpf
+TOOLSINCDIR := $(TOOLSDIR)/include
+TOOLSARCHINCDIR := $(TOOLSDIR)/arch/$(SRCARCH)/include
+BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
+APIDIR := $(TOOLSINCDIR)/uapi
+ifneq ($(O),)
+GENDIR := $(O)/include/generated
+else
+GENDIR := $(abspath ../../../../include/generated)
+endif
+GENHDR := $(GENDIR)/autoconf.h
+PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config
+
+ifneq ($(wildcard $(GENHDR)),)
+  GENFLAGS := -DHAVE_GENHDR
+endif
+
+BPF_GCC		?= $(shell command -v bpf-gcc;)
+SAN_CFLAGS	?=
+SAN_LDFLAGS	?= $(SAN_CFLAGS)
+RELEASE		?=
+OPT_FLAGS	?= $(if $(RELEASE),-O2,-O0)
+
+LIBELF_CFLAGS	:= $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null)
+LIBELF_LIBS	:= $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
+
+SKIP_DOCS	?=
+SKIP_LLVM	?=
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
+
+CFLAGS += -g $(OPT_FLAGS) -rdynamic -std=gnu11				\
+	  -Wall -Werror -fno-omit-frame-pointer				\
+	  -Wno-unused-but-set-variable					\
+	  $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS)			\
+	  -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)		\
+	  -I$(TOOLSINCDIR) -I$(TOOLSARCHINCDIR) -I$(APIDIR) -I$(OUTPUT)
+LDFLAGS += $(SAN_LDFLAGS)
+LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread
+
+PCAP_CFLAGS	:= $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1")
+PCAP_LIBS	:= $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null)
+LDLIBS += $(PCAP_LIBS)
+CFLAGS += $(PCAP_CFLAGS)
+
+# Some utility functions use LLVM libraries
+jit_disasm_helpers.c-CFLAGS = $(LLVM_CFLAGS)
+
+ifneq ($(LLVM),)
+# Silence some warnings when compiled with clang
+CFLAGS += -Wno-unused-command-line-argument
+endif
+
+# Check whether bpf cpu=v4 is supported or not by clang
+ifneq ($(shell $(CLANG) --target=bpf -mcpu=help 2>&1 | grep 'v4'),)
+CLANG_CPUV4 := 1
+endif
+
+# Order correspond to 'make run_tests' order
+TEST_GEN_PROGS = test_verifier test_tag test_maps test_lru_map test_progs \
+	test_sockmap \
+	test_tcpnotify_user \
+	test_progs-no_alu32
+TEST_INST_SUBDIRS := no_alu32
+
+# Also test bpf-gcc, if present
+ifneq ($(BPF_GCC),)
+TEST_GEN_PROGS += test_progs-bpf_gcc
+TEST_INST_SUBDIRS += bpf_gcc
+
+# The following tests contain C code that, although technically legal,
+# triggers GCC warnings that cannot be disabled: declaration of
+# anonymous struct types in function parameter lists.
+progs/btf_dump_test_case_bitfields.c-bpf_gcc-CFLAGS := -Wno-error
+progs/btf_dump_test_case_namespacing.c-bpf_gcc-CFLAGS := -Wno-error
+progs/btf_dump_test_case_packing.c-bpf_gcc-CFLAGS := -Wno-error
+progs/btf_dump_test_case_padding.c-bpf_gcc-CFLAGS := -Wno-error
+progs/btf_dump_test_case_syntax.c-bpf_gcc-CFLAGS := -Wno-error
+
+endif
+
+ifneq ($(CLANG_CPUV4),)
+TEST_GEN_PROGS += test_progs-cpuv4
+TEST_INST_SUBDIRS += cpuv4
+endif
+
+TEST_FILES = xsk_prereqs.sh $(wildcard progs/btf_dump_test_case_*.c)
+
+# Order correspond to 'make run_tests' order
+TEST_PROGS := test_kmod.sh \
+	test_lirc_mode2.sh \
+	test_xdping.sh \
+	test_bpftool_build.sh \
+	test_bpftool.sh \
+	test_bpftool_map.sh \
+	test_bpftool_metadata.sh \
+	test_doc_build.sh \
+	test_xsk.sh \
+	test_xdp_features.sh
+
+TEST_PROGS_EXTENDED := \
+	ima_setup.sh verify_sig_setup.sh \
+	test_bpftool.py
+
+TEST_KMODS := bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \
+	bpf_test_modorder_y.ko bpf_test_rqspinlock.ko
+TEST_KMOD_TARGETS = $(addprefix $(OUTPUT)/,$(TEST_KMODS))
+
+# Compile but not part of 'make run_tests'
+TEST_GEN_PROGS_EXTENDED = \
+	bench \
+	flow_dissector_load \
+	test_cpp \
+	test_lirc_mode2_user \
+	veristat \
+	xdp_features \
+	xdp_hw_metadata \
+	xdp_synproxy \
+	xdping \
+	xskxceiver
+
+TEST_GEN_FILES += $(TEST_KMODS) liburandom_read.so urandom_read sign-file uprobe_multi
+
+ifneq ($(V),1)
+submake_extras := feature_display=0
+endif
+
+# override lib.mk's default rules
+OVERRIDE_TARGETS := 1
+override define CLEAN
+	$(call msg,CLEAN)
+	$(Q)$(RM) -r $(TEST_GEN_PROGS)
+	$(Q)$(RM) -r $(TEST_GEN_PROGS_EXTENDED)
+	$(Q)$(RM) -r $(TEST_GEN_FILES)
+	$(Q)$(RM) -r $(TEST_KMODS)
+	$(Q)$(RM) -r $(EXTRA_CLEAN)
+	$(Q)$(MAKE) -C test_kmods clean
+	$(Q)$(MAKE) docs-clean
+endef
+
+include ../lib.mk
+
+NON_CHECK_FEAT_TARGETS := clean docs-clean
+CHECK_FEAT := $(filter-out $(NON_CHECK_FEAT_TARGETS),$(or $(MAKECMDGOALS), "none"))
+ifneq ($(CHECK_FEAT),)
+FEATURE_USER := .selftests
+FEATURE_TESTS := llvm
+FEATURE_DISPLAY := $(FEATURE_TESTS)
+
+# Makefile.feature expects OUTPUT to end with a slash
+ifeq ($(shell expr $(MAKE_VERSION) \>= 4.4), 1)
+$(let OUTPUT,$(OUTPUT)/,\
+	$(eval include ../../../build/Makefile.feature))
+else
+override OUTPUT := $(OUTPUT)/
+$(eval include ../../../build/Makefile.feature)
+override OUTPUT := $(patsubst %/,%,$(OUTPUT))
+endif
+endif
+
+ifneq ($(SKIP_LLVM),1)
+ifeq ($(feature-llvm),1)
+  LLVM_CFLAGS  += -DHAVE_LLVM_SUPPORT
+  LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets
+  # both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict
+  LLVM_CFLAGS  += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags))
+  # Prefer linking statically if it's available, otherwise fallback to shared
+  ifeq ($(shell $(LLVM_CONFIG) --link-static --libs >/dev/null 2>&1 && echo static),static)
+    LLVM_LDLIBS  += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS))
+    LLVM_LDLIBS  += $(filter-out -lxml2,$(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS)))
+    LLVM_LDLIBS  += -lstdc++
+  else
+    LLVM_LDLIBS  += $(shell $(LLVM_CONFIG) --link-shared --libs $(LLVM_CONFIG_LIB_COMPONENTS))
+  endif
+  LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags)
+endif
+endif
+
+SCRATCH_DIR := $(OUTPUT)/tools
+BUILD_DIR := $(SCRATCH_DIR)/build
+INCLUDE_DIR := $(SCRATCH_DIR)/include
+BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
+ifneq ($(CROSS_COMPILE),)
+HOST_BUILD_DIR		:= $(BUILD_DIR)/host
+HOST_SCRATCH_DIR	:= $(OUTPUT)/host-tools
+HOST_INCLUDE_DIR	:= $(HOST_SCRATCH_DIR)/include
+else
+HOST_BUILD_DIR		:= $(BUILD_DIR)
+HOST_SCRATCH_DIR	:= $(SCRATCH_DIR)
+HOST_INCLUDE_DIR	:= $(INCLUDE_DIR)
+endif
+HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
+RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
+VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
+		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
+		     ../../../../vmlinux				\
+		     /sys/kernel/btf/vmlinux				\
+		     /boot/vmlinux-$(shell uname -r)
+VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
+ifeq ($(VMLINUX_BTF),)
+$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
+endif
+
+# Define simple and short `make test_progs`, `make test_maps`, etc targets
+# to build individual tests.
+# NOTE: Semicolon at the end is critical to override lib.mk's default static
+# rule for binaries.
+$(notdir $(TEST_GEN_PROGS) $(TEST_KMODS)				\
+	 $(TEST_GEN_PROGS_EXTENDED)): %: $(OUTPUT)/% ;
+
+# sort removes libbpf duplicates when not cross-building
+MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf	\
+	       $(BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/bpftool		\
+	       $(HOST_BUILD_DIR)/resolve_btfids				\
+	       $(INCLUDE_DIR))
+$(MAKE_DIRS):
+	$(call msg,MKDIR,,$@)
+	$(Q)mkdir -p $@
+
+$(OUTPUT)/%.o: %.c
+	$(call msg,CC,,$@)
+	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/%:%.c
+	$(call msg,BINARY,,$@)
+	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
+
+# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
+ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 riscv))
+LLD := lld
+else
+LLD := $(shell command -v $(LD))
+endif
+
+# Filter out -static for liburandom_read.so and its dependent targets so that static builds
+# do not fail. Static builds leave urandom_read relying on system-wide shared libraries.
+$(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c liburandom_read.map
+	$(call msg,LIB,,$@)
+	$(Q)$(CLANG) $(CLANG_TARGET_ARCH) \
+		     $(filter-out -static,$(CFLAGS) $(LDFLAGS)) \
+		     $(filter %.c,$^) $(filter-out -static,$(LDLIBS)) \
+		     -Wno-unused-command-line-argument \
+		     -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
+		     -Wl,--version-script=liburandom_read.map \
+		     -fPIC -shared -o $@
+
+$(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so
+	$(call msg,BINARY,,$@)
+	$(Q)$(CLANG) $(CLANG_TARGET_ARCH) \
+		     $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \
+		     -Wno-unused-command-line-argument \
+		     -lurandom_read $(filter-out -static,$(LDLIBS)) -L$(OUTPUT) \
+		     -fuse-ld=$(LLD) -Wl,-znoseparate-code -Wl,--build-id=sha1 \
+		     -Wl,-rpath=. -o $@
+
+$(OUTPUT)/sign-file: ../../../../scripts/sign-file.c
+	$(call msg,SIGN-FILE,,$@)
+	$(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \
+		  $< -o $@ \
+		  $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto)
+
+# This should really be a grouped target, but make versions before 4.3 don't
+# support that for regular rules. However, pattern matching rules are implicitly
+# treated as grouped even with older versions of make, so as a workaround, the
+# subst() turns the rule into a pattern matching rule
+$(addprefix test_kmods/,$(subst .ko,%ko,$(TEST_KMODS))): $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard test_kmods/Makefile test_kmods/*.[ch])
+	$(Q)$(RM) test_kmods/*.ko test_kmods/*.mod.o # force re-compilation
+	$(Q)$(MAKE) $(submake_extras) -C test_kmods	\
+		RESOLVE_BTFIDS=$(RESOLVE_BTFIDS)	\
+		EXTRA_CFLAGS='' EXTRA_LDFLAGS=''
+
+$(TEST_KMOD_TARGETS): $(addprefix test_kmods/,$(TEST_KMODS))
+	$(call msg,MOD,,$@)
+	$(Q)cp test_kmods/$(@F) $@
+
+
+DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
+ifneq ($(CROSS_COMPILE),)
+CROSS_BPFTOOL := $(SCRATCH_DIR)/sbin/bpftool
+TRUNNER_BPFTOOL := $(CROSS_BPFTOOL)
+USE_BOOTSTRAP := ""
+else
+TRUNNER_BPFTOOL := $(DEFAULT_BPFTOOL)
+USE_BOOTSTRAP := "bootstrap/"
+endif
+
+TEST_GEN_PROGS_EXTENDED += $(TRUNNER_BPFTOOL)
+
+$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)
+
+TESTING_HELPERS	:= $(OUTPUT)/testing_helpers.o
+CGROUP_HELPERS	:= $(OUTPUT)/cgroup_helpers.o
+UNPRIV_HELPERS  := $(OUTPUT)/unpriv_helpers.o
+TRACE_HELPERS	:= $(OUTPUT)/trace_helpers.o
+JSON_WRITER		:= $(OUTPUT)/json_writer.o
+CAP_HELPERS	:= $(OUTPUT)/cap_helpers.o
+NETWORK_HELPERS := $(OUTPUT)/network_helpers.o
+
+$(OUTPUT)/test_sockmap: $(CGROUP_HELPERS) $(TESTING_HELPERS)
+$(OUTPUT)/test_tcpnotify_user: $(CGROUP_HELPERS) $(TESTING_HELPERS) $(TRACE_HELPERS)
+$(OUTPUT)/test_sock_fields: $(CGROUP_HELPERS) $(TESTING_HELPERS)
+$(OUTPUT)/test_tag: $(TESTING_HELPERS)
+$(OUTPUT)/test_lirc_mode2_user: $(TESTING_HELPERS)
+$(OUTPUT)/xdping: $(TESTING_HELPERS)
+$(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)
+$(OUTPUT)/test_maps: $(TESTING_HELPERS)
+$(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS) $(UNPRIV_HELPERS)
+$(OUTPUT)/xsk.o: $(BPFOBJ)
+
+BPFTOOL ?= $(DEFAULT_BPFTOOL)
+$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
+		    $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
+	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)			       \
+		    ARCH= CROSS_COMPILE= CC="$(HOSTCC)" LD="$(HOSTLD)" 	       \
+		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)'	       \
+		    EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)'			       \
+		    OUTPUT=$(HOST_BUILD_DIR)/bpftool/			       \
+		    LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/		       \
+		    LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/			       \
+		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
+
+ifneq ($(CROSS_COMPILE),)
+$(CROSS_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)	\
+		    $(BPFOBJ) | $(BUILD_DIR)/bpftool
+	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)				\
+		    ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE)			\
+		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)'		\
+		    EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)'				\
+		    OUTPUT=$(BUILD_DIR)/bpftool/				\
+		    LIBBPF_OUTPUT=$(BUILD_DIR)/libbpf/				\
+		    LIBBPF_DESTDIR=$(SCRATCH_DIR)/				\
+		    prefix= DESTDIR=$(SCRATCH_DIR)/ install-bin
+endif
+
+ifneq ($(SKIP_DOCS),1)
+all: docs
+endif
+
+docs:
+	$(Q)RST2MAN_OPTS="--exit-status=1" $(MAKE) $(submake_extras)	\
+	            -f Makefile.docs					\
+	            prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
+
+docs-clean:
+	$(Q)$(MAKE) $(submake_extras)					\
+	            -f Makefile.docs					\
+	            prefix= OUTPUT=$(OUTPUT)/ DESTDIR=$(OUTPUT)/ $@
+
+$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
+	   $(APIDIR)/linux/bpf.h					       \
+	   | $(BUILD_DIR)/libbpf
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
+		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(SAN_CFLAGS) $(EXTRA_CFLAGS)' \
+		    EXTRA_LDFLAGS='$(SAN_LDFLAGS) $(EXTRA_LDFLAGS)'	       \
+		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
+
+ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
+$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
+		$(APIDIR)/linux/bpf.h					       \
+		| $(HOST_BUILD_DIR)/libbpf
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \
+		    ARCH= CROSS_COMPILE=				       \
+		    EXTRA_CFLAGS='-g $(OPT_FLAGS) $(EXTRA_CFLAGS)'	       \
+		    EXTRA_LDFLAGS='$(EXTRA_LDFLAGS)'			       \
+		    OUTPUT=$(HOST_BUILD_DIR)/libbpf/			       \
+		    CC="$(HOSTCC)" LD="$(HOSTLD)"			       \
+		    DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
+endif
+
+# vmlinux.h is first dumped to a temporary file and then compared to
+# the previous version. This helps to avoid unnecessary re-builds of
+# $(TRUNNER_BPF_OBJS)
+$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
+ifeq ($(VMLINUX_H),)
+	$(call msg,GEN,,$@)
+	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $(INCLUDE_DIR)/.vmlinux.h.tmp
+	$(Q)cmp -s $(INCLUDE_DIR)/.vmlinux.h.tmp $@ || mv $(INCLUDE_DIR)/.vmlinux.h.tmp $@
+else
+	$(call msg,CP,,$@)
+	$(Q)cp "$(VMLINUX_H)" $@
+endif
+
+$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids	\
+		       $(TOOLSDIR)/bpf/resolve_btfids/main.c	\
+		       $(TOOLSDIR)/lib/rbtree.c			\
+		       $(TOOLSDIR)/lib/zalloc.c			\
+		       $(TOOLSDIR)/lib/string.c			\
+		       $(TOOLSDIR)/lib/ctype.c			\
+		       $(TOOLSDIR)/lib/str_error_r.c
+	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids	\
+		CC="$(HOSTCC)" LD="$(HOSTLD)" AR="$(HOSTAR)" \
+		LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \
+		OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
+
+# Get Clang's default includes on this system, as opposed to those seen by
+# '--target=bpf'. This fixes "missing" files on some architectures/distros,
+# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
+#
+# Use '-idirafter': Don't interfere with include mechanics except where the
+# build would have failed anyways.
+define get_sys_includes
+$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
+	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
+$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}') \
+$(shell $(1) $(2) -dM -E - </dev/null | grep '__loongarch_grlen ' | awk '{printf("-D__BITS_PER_LONG=%d", $$3)}') \
+$(shell $(1) $(2) -dM -E - </dev/null | grep -E 'MIPS(EL|EB)|_MIPS_SZ(PTR|LONG) |_MIPS_SIM |_ABI(O32|N32|64) ' | awk '{printf("-D%s=%s ", $$2, $$3)}')
+endef
+
+# Determine target endianness.
+IS_LITTLE_ENDIAN := $(shell $(CC) -dM -E - </dev/null | \
+			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
+MENDIAN:=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
+BPF_TARGET_ENDIAN:=$(if $(IS_LITTLE_ENDIAN),--target=bpfel,--target=bpfeb)
+
+ifneq ($(CROSS_COMPILE),)
+CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif
+
+CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
+BPF_CFLAGS = -g -Wall -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN)	\
+	     -I$(INCLUDE_DIR) -I$(CURDIR) -I$(APIDIR)			\
+	     -I$(abspath $(OUTPUT)/../usr/include)			\
+	     -std=gnu11		 					\
+	     -fno-strict-aliasing 					\
+	     -Wno-compare-distinct-pointer-types			\
+	     -Wno-initializer-overrides					\
+	     #
+# TODO: enable me -Wsign-compare
+
+CLANG_CFLAGS = $(CLANG_SYS_INCLUDES)
+
+$(OUTPUT)/test_l4lb_noinline.o: BPF_CFLAGS += -fno-inline
+$(OUTPUT)/test_xdp_noinline.o: BPF_CFLAGS += -fno-inline
+
+$(OUTPUT)/flow_dissector_load.o: flow_dissector_load.h
+$(OUTPUT)/cgroup_getset_retval_hooks.o: cgroup_getset_retval_hooks.h
+
+# Build BPF object using Clang
+# $1 - input .c file
+# $2 - output .o file
+# $3 - CFLAGS
+# $4 - binary name
+define CLANG_BPF_BUILD_RULE
+	$(call msg,CLNG-BPF,$4,$2)
+	$(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v3 -o $2
+endef
+# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
+define CLANG_NOALU32_BPF_BUILD_RULE
+	$(call msg,CLNG-BPF,$4,$2)
+	$(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v2 -o $2
+endef
+# Similar to CLANG_BPF_BUILD_RULE, but with cpu-v4
+define CLANG_CPUV4_BPF_BUILD_RULE
+	$(call msg,CLNG-BPF,$4,$2)
+	$(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2
+endef
+# Build BPF object using GCC
+define GCC_BPF_BUILD_RULE
+	$(call msg,GCC-BPF,$4,$2)
+	$(Q)$(BPF_GCC) $3 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes -O2 -c $1 -o $2
+endef
+
+SKEL_BLACKLIST := btf__% test_pinning_invalid.c test_sk_assign.c
+
+LINKED_SKELS := test_static_linked.skel.h linked_funcs.skel.h		\
+		linked_vars.skel.h linked_maps.skel.h 			\
+		test_subskeleton.skel.h test_subskeleton_lib.skel.h	\
+		test_usdt.skel.h
+
+LSKELS := fexit_sleep.c trace_printk.c trace_vprintk.c map_ptr_kern.c 	\
+	core_kern.c core_kern_overflow.c test_ringbuf.c			\
+	test_ringbuf_n.c test_ringbuf_map_key.c test_ringbuf_write.c    \
+	test_ringbuf_overwrite.c
+
+LSKELS_SIGNED := fentry_test.c fexit_test.c atomics.c
+
+# Generate both light skeleton and libbpf skeleton for these
+LSKELS_EXTRA := test_ksyms_module.c test_ksyms_weak.c kfunc_call_test.c \
+	kfunc_call_test_subprog.c
+SKEL_BLACKLIST += $$(LSKELS) $$(LSKELS_SIGNED)
+
+test_static_linked.skel.h-deps := test_static_linked1.bpf.o test_static_linked2.bpf.o
+linked_funcs.skel.h-deps := linked_funcs1.bpf.o linked_funcs2.bpf.o
+linked_vars.skel.h-deps := linked_vars1.bpf.o linked_vars2.bpf.o
+linked_maps.skel.h-deps := linked_maps1.bpf.o linked_maps2.bpf.o
+# In the subskeleton case, we want the test_subskeleton_lib.subskel.h file
+# but that's created as a side-effect of the skel.h generation.
+test_subskeleton.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o test_subskeleton.bpf.o
+test_subskeleton_lib.skel.h-deps := test_subskeleton_lib2.bpf.o test_subskeleton_lib.bpf.o
+test_usdt.skel.h-deps := test_usdt.bpf.o test_usdt_multispec.bpf.o
+xsk_xdp_progs.skel.h-deps := xsk_xdp_progs.bpf.o
+xdp_hw_metadata.skel.h-deps := xdp_hw_metadata.bpf.o
+xdp_features.skel.h-deps := xdp_features.bpf.o
+
+LINKED_BPF_OBJS := $(foreach skel,$(LINKED_SKELS),$($(skel)-deps))
+LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.c,$(LINKED_BPF_OBJS))
+
+HEADERS_FOR_BPF_OBJS := $(wildcard $(BPFDIR)/*.bpf.h)		\
+			$(addprefix $(BPFDIR)/,	bpf_core_read.h	\
+			                        bpf_endian.h	\
+						bpf_helpers.h	\
+			                        bpf_tracing.h)
+
+# Set up extra TRUNNER_XXX "temporary" variables in the environment (relies on
+# $eval()) and pass control to DEFINE_TEST_RUNNER_RULES.
+# Parameters:
+# $1 - test runner base binary name (e.g., test_progs)
+# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)
+define DEFINE_TEST_RUNNER
+
+LSKEL_SIGN := -S -k $(PRIVATE_KEY) -i $(VERIFICATION_CERT)
+TRUNNER_OUTPUT := $(OUTPUT)$(if $2,/)$2
+TRUNNER_BINARY := $1$(if $2,-)$2
+TRUNNER_TEST_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.test.o,	\
+				 $$(notdir $$(wildcard $(TRUNNER_TESTS_DIR)/*.c)))
+TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,		\
+				 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
+TRUNNER_LIB_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,		\
+				 $$(filter %.c,$(TRUNNER_LIB_SOURCES)))
+TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
+TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
+TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
+TRUNNER_BPF_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.bpf.o, $$(TRUNNER_BPF_SRCS))
+TRUNNER_BPF_SKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.skel.h,	\
+				 $$(filter-out $(SKEL_BLACKLIST) $(LINKED_BPF_SRCS),\
+					       $$(TRUNNER_BPF_SRCS)))
+TRUNNER_BPF_LSKELS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS) $$(LSKELS_EXTRA))
+TRUNNER_BPF_SKELS_LINKED := $$(addprefix $$(TRUNNER_OUTPUT)/,$(LINKED_SKELS))
+TRUNNER_BPF_LSKELS_SIGNED := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.lskel.h, $$(LSKELS_SIGNED))
+TEST_GEN_FILES += $$(TRUNNER_BPF_OBJS)
+
+# Evaluate rules now with extra TRUNNER_XXX variables above already defined
+$$(eval $$(call DEFINE_TEST_RUNNER_RULES,$1,$2))
+
+endef
+
+# Using TRUNNER_XXX variables, provided by callers of DEFINE_TEST_RUNNER and
+# set up by DEFINE_TEST_RUNNER itself, create test runner build rules with:
+# $1 - test runner base binary name (e.g., test_progs)
+# $2 - test runner extra "flavor" (e.g., no_alu32, cpuv4, bpf_gcc, etc)
+define DEFINE_TEST_RUNNER_RULES
+
+ifeq ($($(TRUNNER_OUTPUT)-dir),)
+$(TRUNNER_OUTPUT)-dir := y
+$(TRUNNER_OUTPUT):
+	$$(call msg,MKDIR,,$$@)
+	$(Q)mkdir -p $$@
+endif
+
+# ensure we set up BPF objects generation rule just once for a given
+# input/output directory combination
+ifeq ($($(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs),)
+$(TRUNNER_BPF_PROGS_DIR)$(if $2,-)$2-bpfobjs := y
+$(TRUNNER_BPF_OBJS): $(TRUNNER_OUTPUT)/%.bpf.o:				\
+		     $(TRUNNER_BPF_PROGS_DIR)/%.c			\
+		     $(TRUNNER_BPF_PROGS_DIR)/*.h			\
+		     $$(INCLUDE_DIR)/vmlinux.h				\
+		     $(HEADERS_FOR_BPF_OBJS)				\
+		     | $(TRUNNER_OUTPUT) $$(BPFOBJ)
+	$$(call $(TRUNNER_BPF_BUILD_RULE),$$<,$$@,			\
+					  $(TRUNNER_BPF_CFLAGS)         \
+					  $$($$<-CFLAGS)		\
+					  $$($$<-$2-CFLAGS),$(TRUNNER_BINARY))
+
+$(TRUNNER_BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
+	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked1.o) $$<
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked2.o) $$(<:.o=.linked1.o)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.linked3.o) $$(<:.o=.linked2.o)
+	$(Q)diff $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
+	$(Q)$$(BPFTOOL) gen skeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$@
+	$(Q)$$(BPFTOOL) gen subskeleton $$(<:.o=.linked3.o) name $$(notdir $$(<:.bpf.o=)) > $$(@:.skel.h=.subskel.h)
+	$(Q)rm -f $$(<:.o=.linked1.o) $$(<:.o=.linked2.o) $$(<:.o=.linked3.o)
+
+$(TRUNNER_BPF_LSKELS): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
+	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)
+	$(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
+	$(Q)$$(BPFTOOL) gen skeleton -L $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@
+	$(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
+
+$(TRUNNER_BPF_LSKELS_SIGNED): %.lskel.h: %.bpf.o $(BPFTOOL) | $(TRUNNER_OUTPUT)
+	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY) (signed),$$@)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked1.o) $$<
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked2.o) $$(<:.o=.llinked1.o)
+	$(Q)$$(BPFTOOL) gen object $$(<:.o=.llinked3.o) $$(<:.o=.llinked2.o)
+	$(Q)diff $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
+	$(Q)$$(BPFTOOL) gen skeleton $(LSKEL_SIGN) $$(<:.o=.llinked3.o) name $$(notdir $$(<:.bpf.o=_lskel)) > $$@
+	$(Q)rm -f $$(<:.o=.llinked1.o) $$(<:.o=.llinked2.o) $$(<:.o=.llinked3.o)
+
+$(LINKED_BPF_OBJS): %: $(TRUNNER_OUTPUT)/%
+
+# .SECONDEXPANSION here allows to correctly expand %-deps variables as prerequisites
+.SECONDEXPANSION:
+$(TRUNNER_BPF_SKELS_LINKED): $(TRUNNER_OUTPUT)/%: $$$$(%-deps) $(BPFTOOL) | $(TRUNNER_OUTPUT)
+	$$(call msg,LINK-BPF,$(TRUNNER_BINARY),$$(@:.skel.h=.bpf.o))
+	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked1.o) $$(addprefix $(TRUNNER_OUTPUT)/,$$($$(@F)-deps))
+	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked1.o)
+	$(Q)$$(BPFTOOL) gen object $$(@:.skel.h=.linked3.o) $$(@:.skel.h=.linked2.o)
+	$(Q)diff $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
+	$$(call msg,GEN-SKEL,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(BPFTOOL) gen skeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$@
+	$(Q)$$(BPFTOOL) gen subskeleton $$(@:.skel.h=.linked3.o) name $$(notdir $$(@:.skel.h=)) > $$(@:.skel.h=.subskel.h)
+	$(Q)rm -f $$(@:.skel.h=.linked1.o) $$(@:.skel.h=.linked2.o) $$(@:.skel.h=.linked3.o)
+
+# When the compiler generates a %.d file, only skel basenames (not
+# full paths) are specified as prerequisites for corresponding %.o
+# file. vpath directives below instruct make to search for skel files
+# in TRUNNER_OUTPUT, if they are not present in the working directory.
+vpath %.skel.h $(TRUNNER_OUTPUT)
+vpath %.lskel.h $(TRUNNER_OUTPUT)
+vpath %.subskel.h $(TRUNNER_OUTPUT)
+
+endif
+
+# ensure we set up tests.h header generation rule just once
+ifeq ($($(TRUNNER_TESTS_DIR)-tests-hdr),)
+$(TRUNNER_TESTS_DIR)-tests-hdr := y
+$(TRUNNER_TESTS_HDR): $(TRUNNER_TESTS_DIR)/*.c
+	$$(call msg,TEST-HDR,$(TRUNNER_BINARY),$$@)
+	$$(shell (echo '/* Generated header, do not edit */';					\
+		  sed -n -E 's/^void (serial_)?test_([a-zA-Z0-9_]+)\((void)?\).*/DEFINE_TEST(\2)/p'	\
+			$(TRUNNER_TESTS_DIR)/*.c | sort ;	\
+		 ) > $$@)
+endif
+
+# compile individual test files
+# Note: we cd into output directory to ensure embedded BPF object is found
+$(TRUNNER_TEST_OBJS): $(TRUNNER_OUTPUT)/%.test.o:			\
+		      $(TRUNNER_TESTS_DIR)/%.c				\
+		      | $(TRUNNER_OUTPUT)/%.test.d
+	$$(call msg,TEST-OBJ,$(TRUNNER_BINARY),$$@)
+	$(Q)cd $$(@D) && $$(CC) -I. $$(CFLAGS) -MMD -MT $$@ -c $(CURDIR)/$$< $$(LDLIBS) -o $$(@F)
+
+$(TRUNNER_TEST_OBJS:.o=.d): $(TRUNNER_OUTPUT)/%.test.d:			\
+			    $(TRUNNER_TESTS_DIR)/%.c			\
+			    $(TRUNNER_EXTRA_HDRS)			\
+			    $(TRUNNER_BPF_SKELS)			\
+			    $(TRUNNER_BPF_LSKELS)			\
+			    $(TRUNNER_BPF_LSKELS_SIGNED)		\
+			    $(TRUNNER_BPF_SKELS_LINKED)			\
+			    $$(BPFOBJ) | $(TRUNNER_OUTPUT)
+
+ifeq ($(filter clean docs-clean,$(MAKECMDGOALS)),)
+include $(wildcard $(TRUNNER_TEST_OBJS:.o=.d))
+endif
+
+# add per extra obj CFGLAGS definitions
+$(foreach N,$(patsubst $(TRUNNER_OUTPUT)/%.o,%,$(TRUNNER_EXTRA_OBJS)),	\
+	$(eval $(TRUNNER_OUTPUT)/$(N).o: CFLAGS += $($(N).c-CFLAGS)))
+
+$(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:				\
+		       %.c						\
+		       $(TRUNNER_EXTRA_HDRS)				\
+		       $(VERIFY_SIG_HDR)				\
+		       $(TRUNNER_TESTS_HDR)				\
+		       $$(BPFOBJ) | $(TRUNNER_OUTPUT)
+	$$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
+
+$(TRUNNER_LIB_OBJS): $(TRUNNER_OUTPUT)/%.o:$(TOOLSDIR)/lib/%.c
+	$$(call msg,LIB-OBJ,$(TRUNNER_BINARY),$$@)
+	$(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
+
+# non-flavored in-srctree builds receive special treatment, in particular, we
+# do not need to copy extra resources (see e.g. test_btf_dump_case())
+$(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
+ifneq ($2:$(OUTPUT),:$(shell pwd))
+	$$(call msg,EXT-COPY,$(TRUNNER_BINARY),$(TRUNNER_EXTRA_FILES))
+	$(Q)rsync -aq $$^ $(TRUNNER_OUTPUT)/
+endif
+
+# some X.test.o files have runtime dependencies on Y.bpf.o files
+$(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS)
+
+$(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)			\
+			     $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)		\
+			     $(TRUNNER_LIB_OBJS)			\
+			     $(RESOLVE_BTFIDS)				\
+			     $(TRUNNER_BPFTOOL)				\
+			     $(OUTPUT)/veristat				\
+			     | $(TRUNNER_BINARY)-extras
+	$$(call msg,BINARY,,$$@)
+	$(Q)$$(CC) $$(CFLAGS) $$(filter %.a %.o,$$^) $$(LDLIBS) $$(LLVM_LDLIBS) $$(LDFLAGS) $$(LLVM_LDFLAGS) -o $$@
+	$(Q)$(RESOLVE_BTFIDS) --btf $(TRUNNER_OUTPUT)/btf_data.bpf.o $$@
+	$(Q)ln -sf $(if $2,..,.)/tools/build/bpftool/$(USE_BOOTSTRAP)bpftool \
+		   $(OUTPUT)/$(if $2,$2/)bpftool
+
+endef
+
+VERIFY_SIG_SETUP := $(CURDIR)/verify_sig_setup.sh
+VERIFY_SIG_HDR := verification_cert.h
+VERIFICATION_CERT   := $(BUILD_DIR)/signing_key.der
+PRIVATE_KEY := $(BUILD_DIR)/signing_key.pem
+
+$(VERIFICATION_CERT) $(PRIVATE_KEY): $(VERIFY_SIG_SETUP)
+	$(Q)mkdir -p $(BUILD_DIR)
+	$(Q)$(VERIFY_SIG_SETUP) genkey $(BUILD_DIR)
+
+$(VERIFY_SIG_HDR): $(VERIFICATION_CERT)
+	$(Q)ln -fs $< test_progs_verification_cert && \
+	xxd -i test_progs_verification_cert > $@
+
+# Define test_progs test runner.
+TRUNNER_TESTS_DIR := prog_tests
+TRUNNER_BPF_PROGS_DIR := progs
+TRUNNER_EXTRA_SOURCES := test_progs.c		\
+			 cgroup_helpers.c	\
+			 trace_helpers.c	\
+			 network_helpers.c	\
+			 testing_helpers.c	\
+			 btf_helpers.c		\
+			 cap_helpers.c		\
+			 unpriv_helpers.c 	\
+			 netlink_helpers.c	\
+			 jit_disasm_helpers.c	\
+			 io_helpers.c		\
+			 test_loader.c		\
+			 xsk.c			\
+			 disasm.c		\
+			 disasm_helpers.c	\
+			 json_writer.c 		\
+			 $(VERIFY_SIG_HDR)		\
+			 flow_dissector_load.h	\
+			 ip_check_defrag_frags.h
+TRUNNER_LIB_SOURCES := find_bit.c
+TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read				\
+		       $(OUTPUT)/liburandom_read.so			\
+		       $(OUTPUT)/xdp_synproxy				\
+		       $(OUTPUT)/sign-file				\
+		       $(OUTPUT)/uprobe_multi				\
+		       $(TEST_KMOD_TARGETS)				\
+		       ima_setup.sh 					\
+		       $(VERIFY_SIG_SETUP)				\
+		       $(wildcard progs/btf_dump_test_case_*.c)		\
+		       $(wildcard progs/*.bpf.o)
+TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
+TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
+$(eval $(call DEFINE_TEST_RUNNER,test_progs))
+
+# Define test_progs-no_alu32 test runner.
+TRUNNER_BPF_BUILD_RULE := CLANG_NOALU32_BPF_BUILD_RULE
+TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS)
+$(eval $(call DEFINE_TEST_RUNNER,test_progs,no_alu32))
+
+# Define test_progs-cpuv4 test runner.
+ifneq ($(CLANG_CPUV4),)
+TRUNNER_BPF_BUILD_RULE := CLANG_CPUV4_BPF_BUILD_RULE
+TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(CLANG_CFLAGS) -DENABLE_ATOMICS_TESTS
+$(eval $(call DEFINE_TEST_RUNNER,test_progs,cpuv4))
+endif
+
+# Define test_progs BPF-GCC-flavored test runner.
+ifneq ($(BPF_GCC),)
+TRUNNER_BPF_BUILD_RULE := GCC_BPF_BUILD_RULE
+TRUNNER_BPF_CFLAGS := $(BPF_CFLAGS) $(call get_sys_includes,gcc,)
+$(eval $(call DEFINE_TEST_RUNNER,test_progs,bpf_gcc))
+endif
+
+# Define test_maps test runner.
+TRUNNER_TESTS_DIR := map_tests
+TRUNNER_BPF_PROGS_DIR := progs
+TRUNNER_EXTRA_SOURCES := test_maps.c
+TRUNNER_LIB_SOURCES :=
+TRUNNER_EXTRA_FILES :=
+TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
+TRUNNER_BPF_CFLAGS :=
+$(eval $(call DEFINE_TEST_RUNNER,test_maps))
+
+# Define test_verifier test runner.
+# It is much simpler than test_maps/test_progs and sufficiently different from
+# them (e.g., test.h is using completely pattern), that it's worth just
+# explicitly defining all the rules explicitly.
+verifier/tests.h: verifier/*.c
+	$(shell ( cd verifier/; \
+		  echo '/* Generated header, do not edit */'; \
+		  echo '#ifdef FILL_ARRAY'; \
+		  ls *.c 2> /dev/null | sed -e 's@\(.*\)@#include \"\1\"@'; \
+		  echo '#endif' \
+		) > verifier/tests.h)
+$(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h $(BPFOBJ) | $(OUTPUT)
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+
+# Include find_bit.c to compile xskxceiver.
+EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c prog_tests/test_xsk.c prog_tests/test_xsk.h
+$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h $(BPFOBJ) | $(OUTPUT)
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/xdp_hw_metadata: xdp_hw_metadata.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xdp_hw_metadata.skel.h | $(OUTPUT)
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/xdp_features: xdp_features.c $(OUTPUT)/network_helpers.o $(OUTPUT)/xdp_features.skel.h | $(OUTPUT)
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
+
+# Make sure we are able to include and link libbpf against c++.
+CXXFLAGS += $(CFLAGS)
+CXXFLAGS := $(subst -D_GNU_SOURCE=,,$(CXXFLAGS))
+CXXFLAGS := $(subst -std=gnu11,-std=gnu++11,$(CXXFLAGS))
+$(OUTPUT)/test_cpp: test_cpp.cpp $(OUTPUT)/test_core_extern.skel.h $(BPFOBJ)
+	$(call msg,CXX,,$@)
+	$(Q)$(CXX) $(CXXFLAGS) $(filter %.a %.o %.cpp,$^) $(LDLIBS) -o $@
+
+# Benchmark runner
+$(OUTPUT)/bench_%.o: benchs/bench_%.c bench.h $(BPFOBJ)
+	$(call msg,CC,,$@)
+	$(Q)$(CC) $(CFLAGS) -O2 -c $(filter %.c,$^) $(LDLIBS) -o $@
+$(OUTPUT)/bench_rename.o: $(OUTPUT)/test_overhead.skel.h
+$(OUTPUT)/bench_trigger.o: $(OUTPUT)/trigger_bench.skel.h
+$(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
+			    $(OUTPUT)/perfbuf_bench.skel.h
+$(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h
+$(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h
+$(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h
+$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h
+$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h
+$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h
+$(OUTPUT)/bench_local_storage_create.o: $(OUTPUT)/bench_local_storage_create.skel.h
+$(OUTPUT)/bench_bpf_hashmap_lookup.o: $(OUTPUT)/bpf_hashmap_lookup.skel.h
+$(OUTPUT)/bench_htab_mem.o: $(OUTPUT)/htab_mem_bench.skel.h
+$(OUTPUT)/bench_bpf_crypto.o: $(OUTPUT)/crypto_bench.skel.h
+$(OUTPUT)/bench_sockmap.o: $(OUTPUT)/bench_sockmap_prog.skel.h
+$(OUTPUT)/bench_lpm_trie_map.o: $(OUTPUT)/lpm_trie_bench.skel.h $(OUTPUT)/lpm_trie_map.skel.h
+$(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
+$(OUTPUT)/bench: LDLIBS += -lm
+$(OUTPUT)/bench: $(OUTPUT)/bench.o \
+		 $(TESTING_HELPERS) \
+		 $(TRACE_HELPERS) \
+		 $(CGROUP_HELPERS) \
+		 $(OUTPUT)/bench_count.o \
+		 $(OUTPUT)/bench_rename.o \
+		 $(OUTPUT)/bench_trigger.o \
+		 $(OUTPUT)/bench_ringbufs.o \
+		 $(OUTPUT)/bench_bloom_filter_map.o \
+		 $(OUTPUT)/bench_bpf_loop.o \
+		 $(OUTPUT)/bench_strncmp.o \
+		 $(OUTPUT)/bench_bpf_hashmap_full_update.o \
+		 $(OUTPUT)/bench_local_storage.o \
+		 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o \
+		 $(OUTPUT)/bench_bpf_hashmap_lookup.o \
+		 $(OUTPUT)/bench_local_storage_create.o \
+		 $(OUTPUT)/bench_htab_mem.o \
+		 $(OUTPUT)/bench_bpf_crypto.o \
+		 $(OUTPUT)/bench_sockmap.o \
+		 $(OUTPUT)/bench_lpm_trie_map.o \
+		 #
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
+
+# This works around GCC warning about snprintf truncating strings like:
+#
+#   char a[PATH_MAX], b[PATH_MAX];
+#   snprintf(a, "%s/foo", b);      // triggers -Wformat-truncation
+$(OUTPUT)/veristat.o: CFLAGS += -Wno-format-truncation
+$(OUTPUT)/veristat.o: $(BPFOBJ)
+$(OUTPUT)/veristat: $(OUTPUT)/veristat.o
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
+
+# Linking uprobe_multi can fail due to relocation overflows on mips.
+$(OUTPUT)/uprobe_multi: CFLAGS += $(if $(filter mips, $(ARCH)),-mxgot)
+$(OUTPUT)/uprobe_multi: uprobe_multi.c uprobe_multi.ld
+	$(call msg,BINARY,,$@)
+	$(Q)$(CC) $(CFLAGS) -Wl,-T,uprobe_multi.ld -O0 $(LDFLAGS) 	\
+		$(filter-out %.ld,$^) $(LDLIBS) -o $@
+
+EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)			\
+	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
+	feature bpftool $(TEST_KMOD_TARGETS)				\
+	$(addprefix $(OUTPUT)/,*.o *.d *.skel.h *.lskel.h *.subskel.h	\
+			       no_alu32 cpuv4 bpf_gcc			\
+			       liburandom_read.so)			\
+	$(OUTPUT)/FEATURE-DUMP.selftests				\
+	test_progs_verification_cert
+
+.PHONY: docs docs-clean
+
+# Delete partially updated (corrupted) files on error
+.DELETE_ON_ERROR:
+
+DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
+override define INSTALL_RULE
+	$(DEFAULT_INSTALL_RULE)
+	@for DIR in $(TEST_INST_SUBDIRS); do		  \
+		mkdir -p $(INSTALL_PATH)/$$DIR;   \
+		rsync -a $(OUTPUT)/$$DIR/*.bpf.o $(INSTALL_PATH)/$$DIR;\
+	done
+endef
diff --git a/tools/testing/selftests/bpf/Makefile.docs b/tools/testing/selftests/bpf/Makefile.docs
new file mode 100644
index 000000000000..f7f9e7088bb3
--- /dev/null
+++ b/tools/testing/selftests/bpf/Makefile.docs
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+include ../../../scripts/Makefile.include
+include ../../../scripts/utilities.mak
+
+INSTALL ?= install
+RM ?= rm -f
+RMDIR ?= rmdir --ignore-fail-on-non-empty
+
+prefix ?= /usr/local
+mandir ?= $(prefix)/man
+man2dir = $(mandir)/man2
+man7dir = $(mandir)/man7
+
+SYSCALL_RST = bpf-syscall.rst
+MAN2_RST = $(SYSCALL_RST)
+
+HELPERS_RST = bpf-helpers.rst
+MAN7_RST = $(HELPERS_RST)
+
+_DOC_MAN2 = $(patsubst %.rst,%.2,$(MAN2_RST))
+DOC_MAN2 = $(addprefix $(OUTPUT),$(_DOC_MAN2))
+
+_DOC_MAN7 = $(patsubst %.rst,%.7,$(MAN7_RST))
+DOC_MAN7 = $(addprefix $(OUTPUT),$(_DOC_MAN7))
+
+DOCTARGETS := helpers syscall
+
+docs: $(DOCTARGETS)
+syscall: man2
+helpers: man7
+man2: $(DOC_MAN2)
+man7: $(DOC_MAN7)
+
+RST2MAN_DEP := $(shell command -v rst2man 2>/dev/null)
+
+# Configure make rules for the man page bpf-$1.$2.
+# $1 - target for scripts/bpf_doc.py
+# $2 - man page section to generate the troff file
+define DOCS_RULES =
+$(OUTPUT)bpf-$1.rst: ../../../../include/uapi/linux/bpf.h
+	$$(QUIET_GEN)../../../../scripts/bpf_doc.py $1 \
+		--filename $$< > $$@
+
+$(OUTPUT)%.$2: $(OUTPUT)%.rst
+ifndef RST2MAN_DEP
+	$$(error "rst2man not found, but required to generate man pages")
+endif
+	$$(QUIET_GEN)rst2man --exit-status=1 $$< > $$@.tmp
+	$$(QUIET_GEN)mv $$@.tmp $$@
+
+docs-clean-$1:
+	$$(call QUIET_CLEAN, eBPF_$1-manpage)
+	$(Q)$(RM) $$(DOC_MAN$2) $(OUTPUT)bpf-$1.rst
+
+docs-install-$1: docs
+	$$(call QUIET_INSTALL, eBPF_$1-manpage)
+	$(Q)$(INSTALL) -d -m 755 $(DESTDIR)$$(man$2dir)
+	$(Q)$(INSTALL) -m 644 $$(DOC_MAN$2) $(DESTDIR)$$(man$2dir)
+
+docs-uninstall-$1:
+	$$(call QUIET_UNINST, eBPF_$1-manpage)
+	$(Q)$(RM) $$(addprefix $(DESTDIR)$$(man$2dir)/,$$(_DOC_MAN$2))
+	$(Q)$(RMDIR) $(DESTDIR)$$(man$2dir)
+
+.PHONY: $1 docs-clean-$1 docs-install-$1 docs-uninstall-$1
+endef
+
+# Create the make targets to generate manual pages by name and section
+$(eval $(call DOCS_RULES,helpers,7))
+$(eval $(call DOCS_RULES,syscall,2))
+
+docs-clean: $(foreach doctarget,$(DOCTARGETS), docs-clean-$(doctarget))
+docs-install: $(foreach doctarget,$(DOCTARGETS), docs-install-$(doctarget))
+docs-uninstall: $(foreach doctarget,$(DOCTARGETS), docs-uninstall-$(doctarget))
+
+.PHONY: docs docs-clean docs-install docs-uninstall man2 man7
diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftests/bpf/README.rst
new file mode 100644
index 000000000000..776fbe3cb8f9
--- /dev/null
+++ b/tools/testing/selftests/bpf/README.rst
@@ -0,0 +1,339 @@
+==================
+BPF Selftest Notes
+==================
+General instructions on running selftests can be found in
+`Documentation/bpf/bpf_devel_QA.rst`__.
+
+__ /Documentation/bpf/bpf_devel_QA.rst#q-how-to-run-bpf-selftests
+
+=============
+BPF CI System
+=============
+
+BPF employs a continuous integration (CI) system to check patch submission in an
+automated fashion. The system runs selftests for each patch in a series. Results
+are propagated to patchwork, where failures are highlighted similar to
+violations of other checks (such as additional warnings being emitted or a
+``scripts/checkpatch.pl`` reported deficiency):
+
+  https://patchwork.kernel.org/project/netdevbpf/list/?delegate=121173
+
+The CI system executes tests on multiple architectures. It uses a kernel
+configuration derived from both the generic and architecture specific config
+file fragments below ``tools/testing/selftests/bpf/`` (e.g., ``config`` and
+``config.x86_64``).
+
+Denylisting Tests
+=================
+
+It is possible for some architectures to not have support for all BPF features.
+In such a case tests in CI may fail. An example of such a shortcoming is BPF
+trampoline support on IBM's s390x architecture. For cases like this, an in-tree
+deny list file, located at ``tools/testing/selftests/bpf/DENYLIST.<arch>``, can
+be used to prevent the test from running on such an architecture.
+
+In addition to that, the generic ``tools/testing/selftests/bpf/DENYLIST`` is
+honored on every architecture running tests.
+
+These files are organized in three columns. The first column lists the test in
+question. This can be the name of a test suite or of an individual test. The
+remaining two columns provide additional meta data that helps identify and
+classify the entry: column two is a copy and paste of the error being reported
+when running the test in the setting in question. The third column, if
+available, summarizes the underlying problem. A value of ``trampoline``, for
+example, indicates that lack of trampoline support is causing the test to fail.
+This last entry helps identify tests that can be re-enabled once such support is
+added.
+
+=========================
+Running Selftests in a VM
+=========================
+
+It's now possible to run the selftests using ``tools/testing/selftests/bpf/vmtest.sh``.
+The script tries to ensure that the tests are run with the same environment as they
+would be run post-submit in the CI used by the Maintainers, with the exception
+that deny lists are not automatically honored.
+
+This script uses the in-tree kernel configuration and downloads a VM userspace
+image from the system used by the CI. It builds the kernel (without overwriting
+your existing Kconfig), recompiles the bpf selftests, runs them (by default
+``tools/testing/selftests/bpf/test_progs``) and saves the resulting output (by
+default in ``~/.bpf_selftests``).
+
+Script dependencies:
+- clang (preferably built from sources, https://github.com/llvm/llvm-project);
+- pahole (preferably built from sources, https://git.kernel.org/pub/scm/devel/pahole/pahole.git/);
+- qemu;
+- docutils (for ``rst2man``);
+- libcap-devel.
+
+For more information about using the script, run:
+
+.. code-block:: console
+
+  $ tools/testing/selftests/bpf/vmtest.sh -h
+
+In case of linker errors when running selftests, try using static linking:
+
+.. code-block:: console
+
+  $ LDLIBS=-static PKG_CONFIG='pkg-config --static' vmtest.sh
+
+.. note:: Some distros may not support static linking.
+
+.. note:: The script uses pahole and clang based on host environment setting.
+          If you want to change pahole and llvm, you can change `PATH` environment
+          variable in the beginning of script.
+
+Running vmtest on RV64
+======================
+To speed up testing and avoid various dependency issues, it is recommended to
+run vmtest in a Docker container. Before running vmtest, we need to prepare
+Docker container and local rootfs image. The overall steps are as follows:
+
+1. Create Docker container as shown in link [0].
+
+2. Use mkrootfs_debian.sh script [1] to build local rootfs image:
+
+.. code-block:: console
+
+  $ sudo ./mkrootfs_debian.sh --arch riscv64 --distro noble
+
+3. Start Docker container [0] and run vmtest in the container:
+
+.. code-block:: console
+
+  $ PLATFORM=riscv64 CROSS_COMPILE=riscv64-linux-gnu- \
+    tools/testing/selftests/bpf/vmtest.sh \
+    -l <path of local rootfs image> -- \
+    ./test_progs -d \
+        \"$(cat tools/testing/selftests/bpf/DENYLIST.riscv64 \
+            | cut -d'#' -f1 \
+            | sed -e 's/^[[:space:]]*//' \
+                  -e 's/[[:space:]]*$//' \
+            | tr -s '\n' ',' \
+        )\"
+
+Link: https://github.com/pulehui/riscv-bpf-vmtest.git [0]
+Link: https://github.com/libbpf/ci/blob/main/rootfs/mkrootfs_debian.sh [1]
+
+Additional information about selftest failures are
+documented here.
+
+profiler[23] test failures with clang/llvm <12.0.0
+==================================================
+
+With clang/llvm <12.0.0, the profiler[23] test may fail.
+The symptom looks like
+
+.. code-block:: c
+
+  // r9 is a pointer to map_value
+  // r7 is a scalar
+  17:       bf 96 00 00 00 00 00 00 r6 = r9
+  18:       0f 76 00 00 00 00 00 00 r6 += r7
+  math between map_value pointer and register with unbounded min value is not allowed
+
+  // the instructions below will not be seen in the verifier log
+  19:       a5 07 01 00 01 01 00 00 if r7 < 257 goto +1
+  20:       bf 96 00 00 00 00 00 00 r6 = r9
+  // r6 is used here
+
+The verifier will reject such code with above error.
+At insn 18 the r7 is indeed unbounded. The later insn 19 checks the bounds and
+the insn 20 undoes map_value addition. It is currently impossible for the
+verifier to understand such speculative pointer arithmetic.
+Hence `this patch`__ addresses it on the compiler side. It was committed on llvm 12.
+
+__ https://github.com/llvm/llvm-project/commit/ddf1864ace484035e3cde5e83b3a31ac81e059c6
+
+The corresponding C code
+
+.. code-block:: c
+
+  for (int i = 0; i < MAX_CGROUPS_PATH_DEPTH; i++) {
+          filepart_length = bpf_probe_read_str(payload, ...);
+          if (filepart_length <= MAX_PATH) {
+                  barrier_var(filepart_length); // workaround
+                  payload += filepart_length;
+          }
+  }
+
+bpf_iter test failures with clang/llvm 10.0.0
+=============================================
+
+With clang/llvm 10.0.0, the following two bpf_iter tests failed:
+  * ``bpf_iter/ipv6_route``
+  * ``bpf_iter/netlink``
+
+The symptom for ``bpf_iter/ipv6_route`` looks like
+
+.. code-block:: c
+
+  2: (79) r8 = *(u64 *)(r1 +8)
+  ...
+  14: (bf) r2 = r8
+  15: (0f) r2 += r1
+  ; BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen);
+  16: (7b) *(u64 *)(r8 +64) = r2
+  only read is supported
+
+The symptom for ``bpf_iter/netlink`` looks like
+
+.. code-block:: c
+
+  ; struct netlink_sock *nlk = ctx->sk;
+  2: (79) r7 = *(u64 *)(r1 +8)
+  ...
+  15: (bf) r2 = r7
+  16: (0f) r2 += r1
+  ; BPF_SEQ_PRINTF(seq, "%pK %-3d ", s, s->sk_protocol);
+  17: (7b) *(u64 *)(r7 +0) = r2
+  only read is supported
+
+This is due to a llvm BPF backend bug. `The fix`__
+has been pushed to llvm 10.x release branch and will be
+available in 10.0.1. The patch is available in llvm 11.0.0 trunk.
+
+__  https://github.com/llvm/llvm-project/commit/3cb7e7bf959dcd3b8080986c62e10a75c7af43f0
+
+bpf_verif_scale/loop6.bpf.o test failure with Clang 12
+======================================================
+
+With Clang 12, the following bpf_verif_scale test failed:
+  * ``bpf_verif_scale/loop6.bpf.o``
+
+The verifier output looks like
+
+.. code-block:: c
+
+  R1 type=ctx expected=fp
+  The sequence of 8193 jumps is too complex.
+
+The reason is compiler generating the following code
+
+.. code-block:: c
+
+  ;       for (i = 0; (i < VIRTIO_MAX_SGS) && (i < num); i++) {
+      14:       16 05 40 00 00 00 00 00 if w5 == 0 goto +64 <LBB0_6>
+      15:       bc 51 00 00 00 00 00 00 w1 = w5
+      16:       04 01 00 00 ff ff ff ff w1 += -1
+      17:       67 05 00 00 20 00 00 00 r5 <<= 32
+      18:       77 05 00 00 20 00 00 00 r5 >>= 32
+      19:       a6 01 01 00 05 00 00 00 if w1 < 5 goto +1 <LBB0_4>
+      20:       b7 05 00 00 06 00 00 00 r5 = 6
+  00000000000000a8 <LBB0_4>:
+      21:       b7 02 00 00 00 00 00 00 r2 = 0
+      22:       b7 01 00 00 00 00 00 00 r1 = 0
+  ;       for (i = 0; (i < VIRTIO_MAX_SGS) && (i < num); i++) {
+      23:       7b 1a e0 ff 00 00 00 00 *(u64 *)(r10 - 32) = r1
+      24:       7b 5a c0 ff 00 00 00 00 *(u64 *)(r10 - 64) = r5
+
+Note that insn #15 has w1 = w5 and w1 is refined later but
+r5(w5) is eventually saved on stack at insn #24 for later use.
+This cause later verifier failure. The bug has been `fixed`__ in
+Clang 13.
+
+__  https://github.com/llvm/llvm-project/commit/1959ead525b8830cc8a345f45e1c3ef9902d3229
+
+BPF CO-RE-based tests and Clang version
+=======================================
+
+A set of selftests use BPF target-specific built-ins, which might require
+bleeding-edge Clang versions (Clang 12 nightly at this time).
+
+Few sub-tests of core_reloc test suit (part of test_progs test runner) require
+the following built-ins, listed with corresponding Clang diffs introducing
+them to Clang/LLVM. These sub-tests are going to be skipped if Clang is too
+old to support them, they shouldn't cause build failures or runtime test
+failures:
+
+- __builtin_btf_type_id() [0_, 1_, 2_];
+- __builtin_preserve_type_info(), __builtin_preserve_enum_value() [3_, 4_].
+
+.. _0: https://github.com/llvm/llvm-project/commit/6b01b465388b204d543da3cf49efd6080db094a9
+.. _1: https://github.com/llvm/llvm-project/commit/072cde03aaa13a2c57acf62d79876bf79aa1919f
+.. _2: https://github.com/llvm/llvm-project/commit/00602ee7ef0bf6c68d690a2bd729c12b95c95c99
+.. _3: https://github.com/llvm/llvm-project/commit/6d218b4adb093ff2e9764febbbc89f429412006c
+.. _4: https://github.com/llvm/llvm-project/commit/6d6750696400e7ce988d66a1a00e1d0cb32815f8
+
+Floating-point tests and Clang version
+======================================
+
+Certain selftests, e.g. core_reloc, require support for the floating-point
+types, which was introduced in `Clang 13`__. The older Clang versions will
+either crash when compiling these tests, or generate an incorrect BTF.
+
+__  https://github.com/llvm/llvm-project/commit/a7137b238a07d9399d3ae96c0b461571bd5aa8b2
+
+Kernel function call test and Clang version
+===========================================
+
+Some selftests (e.g. kfunc_call and bpf_tcp_ca) require a LLVM support
+to generate extern function in BTF.  It was introduced in `Clang 13`__.
+
+Without it, the error from compiling bpf selftests looks like:
+
+.. code-block:: console
+
+  libbpf: failed to find BTF for extern 'tcp_slow_start' [25] section: -2
+
+__ https://github.com/llvm/llvm-project/commit/886f9ff53155075bd5f1e994f17b85d1e1b7470c
+
+btf_tag test and Clang version
+==============================
+
+The btf_tag selftest requires LLVM support to recognize the btf_decl_tag and
+btf_type_tag attributes. They are introduced in `Clang 14` [0_, 1_].
+The subtests ``btf_type_tag_user_{mod1, mod2, vmlinux}`` also requires
+pahole version ``1.23``.
+
+Without them, the btf_tag selftest will be skipped and you will observe:
+
+.. code-block:: console
+
+  #<test_num> btf_tag:SKIP
+
+.. _0: https://github.com/llvm/llvm-project/commit/a162b67c98066218d0d00aa13b99afb95d9bb5e6
+.. _1: https://github.com/llvm/llvm-project/commit/3466e00716e12e32fdb100e3fcfca5c2b3e8d784
+
+Clang dependencies for static linking tests
+===========================================
+
+linked_vars, linked_maps, and linked_funcs tests depend on `Clang fix`__ to
+generate valid BTF information for weak variables. Please make sure you use
+Clang that contains the fix.
+
+__ https://github.com/llvm/llvm-project/commit/968292cb93198442138128d850fd54dc7edc0035
+
+Clang relocation changes
+========================
+
+Clang 13 patch `clang reloc patch`_  made some changes on relocations such
+that existing relocation types are broken into more types and
+each new type corresponds to only one way to resolve relocation.
+See `kernel llvm reloc`_ for more explanation and some examples.
+Using clang 13 to compile old libbpf which has static linker support,
+there will be a compilation failure::
+
+  libbpf: ELF relo #0 in section #6 has unexpected type 2 in .../bpf_tcp_nogpl.bpf.o
+
+Here, ``type 2`` refers to new relocation type ``R_BPF_64_ABS64``.
+To fix this issue, user newer libbpf.
+
+.. Links
+.. _clang reloc patch: https://github.com/llvm/llvm-project/commit/6a2ea84600ba4bd3b2733bd8f08f5115eb32164b
+.. _kernel llvm reloc: /Documentation/bpf/llvm_reloc.rst
+
+Clang dependencies for the u32 spill test (xdpwall)
+===================================================
+The xdpwall selftest requires a change in `Clang 14`__.
+
+Without it, the xdpwall selftest will fail and the error message
+from running test_progs will look like:
+
+.. code-block:: console
+
+  test_xdpwall:FAIL:Does LLVM have https://github.com/llvm/llvm-project/commit/ea72b0319d7b0f0c2fcf41d121afa5d031b319d5? unexpected error: -4007
+
+__ https://github.com/llvm/llvm-project/commit/ea72b0319d7b0f0c2fcf41d121afa5d031b319d5
diff --git a/tools/testing/selftests/bpf/autoconf_helper.h b/tools/testing/selftests/bpf/autoconf_helper.h
new file mode 100644
index 000000000000..5b243b9cdf8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/autoconf_helper.h
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#ifdef HAVE_GENHDR
+# include "autoconf.h"
+#else
+# if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__)
+#  define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
+# endif
+#endif
diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c
new file mode 100644
index 000000000000..bd29bb2e6cb5
--- /dev/null
+++ b/tools/testing/selftests/bpf/bench.c
@@ -0,0 +1,784 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define _GNU_SOURCE
+#include <argp.h>
+#include <linux/compiler.h>
+#include <sys/time.h>
+#include <sched.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sys/sysinfo.h>
+#include <signal.h>
+#include "bench.h"
+#include "bpf_util.h"
+#include "testing_helpers.h"
+
+struct env env = {
+	.warmup_sec = 1,
+	.duration_sec = 5,
+	.affinity = false,
+	.quiet = false,
+	.consumer_cnt = 0,
+	.producer_cnt = 1,
+};
+
+static int libbpf_print_fn(enum libbpf_print_level level,
+		    const char *format, va_list args)
+{
+	if (level == LIBBPF_DEBUG && !env.verbose)
+		return 0;
+	return vfprintf(stderr, format, args);
+}
+
+void setup_libbpf(void)
+{
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+	libbpf_set_print(libbpf_print_fn);
+}
+
+void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	long total = res->false_hits  + res->hits + res->drops;
+
+	printf("Iter %3d (%7.3lfus): ",
+	       iter, (delta_ns - 1000000000) / 1000.0);
+
+	printf("%ld false hits of %ld total operations. Percentage = %2.2f %%\n",
+	       res->false_hits, total, ((float)res->false_hits / total) * 100);
+}
+
+void false_hits_report_final(struct bench_res res[], int res_cnt)
+{
+	long total_hits = 0, total_drops = 0, total_false_hits = 0, total_ops = 0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		total_hits += res[i].hits;
+		total_false_hits += res[i].false_hits;
+		total_drops += res[i].drops;
+	}
+	total_ops = total_hits + total_false_hits + total_drops;
+
+	printf("Summary: %ld false hits of %ld total operations. ",
+	       total_false_hits, total_ops);
+	printf("Percentage =  %2.2f %%\n",
+	       ((float)total_false_hits / total_ops) * 100);
+}
+
+void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	double hits_per_sec, drops_per_sec;
+	double hits_per_prod;
+
+	hits_per_sec = res->hits / 1000000.0 / (delta_ns / 1000000000.0);
+	hits_per_prod = hits_per_sec / env.producer_cnt;
+	drops_per_sec = res->drops / 1000000.0 / (delta_ns / 1000000000.0);
+
+	printf("Iter %3d (%7.3lfus): ",
+	       iter, (delta_ns - 1000000000) / 1000.0);
+
+	printf("hits %8.3lfM/s (%7.3lfM/prod), drops %8.3lfM/s, total operations %8.3lfM/s\n",
+	       hits_per_sec, hits_per_prod, drops_per_sec, hits_per_sec + drops_per_sec);
+}
+
+void
+grace_period_latency_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat)
+{
+	int i;
+
+	memset(gp_stat, 0, sizeof(struct basic_stats));
+
+	for (i = 0; i < res_cnt; i++)
+		gp_stat->mean += res[i].gp_ns / 1000.0 / (double)res[i].gp_ct / (0.0 + res_cnt);
+
+#define IT_MEAN_DIFF (res[i].gp_ns / 1000.0 / (double)res[i].gp_ct - gp_stat->mean)
+	if (res_cnt > 1) {
+		for (i = 0; i < res_cnt; i++)
+			gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0);
+	}
+	gp_stat->stddev = sqrt(gp_stat->stddev);
+#undef IT_MEAN_DIFF
+}
+
+void
+grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat)
+{
+	int i;
+
+	memset(gp_stat, 0, sizeof(struct basic_stats));
+	for (i = 0; i < res_cnt; i++)
+		gp_stat->mean += res[i].stime / (double)res[i].gp_ct / (0.0 + res_cnt);
+
+#define IT_MEAN_DIFF (res[i].stime / (double)res[i].gp_ct - gp_stat->mean)
+	if (res_cnt > 1) {
+		for (i = 0; i < res_cnt; i++)
+			gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0);
+	}
+	gp_stat->stddev = sqrt(gp_stat->stddev);
+#undef IT_MEAN_DIFF
+}
+
+void hits_drops_report_final(struct bench_res res[], int res_cnt)
+{
+	int i;
+	double hits_mean = 0.0, drops_mean = 0.0, total_ops_mean = 0.0;
+	double hits_stddev = 0.0, drops_stddev = 0.0, total_ops_stddev = 0.0;
+	double total_ops;
+
+	for (i = 0; i < res_cnt; i++) {
+		hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
+		drops_mean += res[i].drops / 1000000.0 / (0.0 + res_cnt);
+	}
+	total_ops_mean = hits_mean + drops_mean;
+
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++) {
+			hits_stddev += (hits_mean - res[i].hits / 1000000.0) *
+				       (hits_mean - res[i].hits / 1000000.0) /
+				       (res_cnt - 1.0);
+			drops_stddev += (drops_mean - res[i].drops / 1000000.0) *
+					(drops_mean - res[i].drops / 1000000.0) /
+					(res_cnt - 1.0);
+			total_ops = res[i].hits + res[i].drops;
+			total_ops_stddev += (total_ops_mean - total_ops / 1000000.0) *
+					(total_ops_mean - total_ops / 1000000.0) /
+					(res_cnt - 1.0);
+		}
+		hits_stddev = sqrt(hits_stddev);
+		drops_stddev = sqrt(drops_stddev);
+		total_ops_stddev = sqrt(total_ops_stddev);
+	}
+	printf("Summary: hits %8.3lf \u00B1 %5.3lfM/s (%7.3lfM/prod), ",
+	       hits_mean, hits_stddev, hits_mean / env.producer_cnt);
+	printf("drops %8.3lf \u00B1 %5.3lfM/s, ",
+	       drops_mean, drops_stddev);
+	printf("total operations %8.3lf \u00B1 %5.3lfM/s\n",
+	       total_ops_mean, total_ops_stddev);
+}
+
+void ops_report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	double hits_per_sec, hits_per_prod;
+
+	hits_per_sec = res->hits / 1000000.0 / (delta_ns / 1000000000.0);
+	hits_per_prod = hits_per_sec / env.producer_cnt;
+
+	printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0);
+
+	printf("hits %8.3lfM/s (%7.3lfM/prod)\n", hits_per_sec, hits_per_prod);
+}
+
+void ops_report_final(struct bench_res res[], int res_cnt)
+{
+	double hits_mean = 0.0, hits_stddev = 0.0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++)
+		hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
+
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++)
+			hits_stddev += (hits_mean - res[i].hits / 1000000.0) *
+				       (hits_mean - res[i].hits / 1000000.0) /
+				       (res_cnt - 1.0);
+
+		hits_stddev = sqrt(hits_stddev);
+	}
+	printf("Summary: throughput %8.3lf \u00B1 %5.3lf M ops/s (%7.3lfM ops/prod), ",
+	       hits_mean, hits_stddev, hits_mean / env.producer_cnt);
+	printf("latency %8.3lf ns/op\n", 1000.0 / hits_mean * env.producer_cnt);
+}
+
+void local_storage_report_progress(int iter, struct bench_res *res,
+				   long delta_ns)
+{
+	double important_hits_per_sec, hits_per_sec;
+	double delta_sec = delta_ns / 1000000000.0;
+
+	hits_per_sec = res->hits / 1000000.0 / delta_sec;
+	important_hits_per_sec = res->important_hits / 1000000.0 / delta_sec;
+
+	printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0);
+
+	printf("hits %8.3lfM/s ", hits_per_sec);
+	printf("important_hits %8.3lfM/s\n", important_hits_per_sec);
+}
+
+void local_storage_report_final(struct bench_res res[], int res_cnt)
+{
+	double important_hits_mean = 0.0, important_hits_stddev = 0.0;
+	double hits_mean = 0.0, hits_stddev = 0.0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
+		important_hits_mean += res[i].important_hits / 1000000.0 / (0.0 + res_cnt);
+	}
+
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++) {
+			hits_stddev += (hits_mean - res[i].hits / 1000000.0) *
+				       (hits_mean - res[i].hits / 1000000.0) /
+				       (res_cnt - 1.0);
+			important_hits_stddev +=
+				       (important_hits_mean - res[i].important_hits / 1000000.0) *
+				       (important_hits_mean - res[i].important_hits / 1000000.0) /
+				       (res_cnt - 1.0);
+		}
+
+		hits_stddev = sqrt(hits_stddev);
+		important_hits_stddev = sqrt(important_hits_stddev);
+	}
+	printf("Summary: hits throughput %8.3lf \u00B1 %5.3lf M ops/s, ",
+	       hits_mean, hits_stddev);
+	printf("hits latency %8.3lf ns/op, ", 1000.0 / hits_mean);
+	printf("important_hits throughput %8.3lf \u00B1 %5.3lf M ops/s\n",
+	       important_hits_mean, important_hits_stddev);
+}
+
+const char *argp_program_version = "benchmark";
+const char *argp_program_bug_address = "<bpf@vger.kernel.org>";
+const char argp_program_doc[] =
+"benchmark    Generic benchmarking framework.\n"
+"\n"
+"This tool runs benchmarks.\n"
+"\n"
+"USAGE: benchmark <bench-name>\n"
+"\n"
+"EXAMPLES:\n"
+"    # run 'count-local' benchmark with 1 producer and 1 consumer\n"
+"    benchmark count-local\n"
+"    # run 'count-local' with 16 producer and 8 consumer thread, pinned to CPUs\n"
+"    benchmark -p16 -c8 -a count-local\n";
+
+enum {
+	ARG_PROD_AFFINITY_SET = 1000,
+	ARG_CONS_AFFINITY_SET = 1001,
+};
+
+static const struct argp_option opts[] = {
+	{ "list", 'l', NULL, 0, "List available benchmarks"},
+	{ "duration", 'd', "SEC", 0, "Duration of benchmark, seconds"},
+	{ "warmup", 'w', "SEC", 0, "Warm-up period, seconds"},
+	{ "producers", 'p', "NUM", 0, "Number of producer threads"},
+	{ "consumers", 'c', "NUM", 0, "Number of consumer threads"},
+	{ "verbose", 'v', NULL, 0, "Verbose debug output"},
+	{ "affinity", 'a', NULL, 0, "Set consumer/producer thread affinity"},
+	{ "quiet", 'q', NULL, 0, "Be more quiet"},
+	{ "prod-affinity", ARG_PROD_AFFINITY_SET, "CPUSET", 0,
+	  "Set of CPUs for producer threads; implies --affinity"},
+	{ "cons-affinity", ARG_CONS_AFFINITY_SET, "CPUSET", 0,
+	  "Set of CPUs for consumer threads; implies --affinity"},
+	{},
+};
+
+extern struct argp bench_ringbufs_argp;
+extern struct argp bench_bloom_map_argp;
+extern struct argp bench_bpf_loop_argp;
+extern struct argp bench_local_storage_argp;
+extern struct argp bench_local_storage_rcu_tasks_trace_argp;
+extern struct argp bench_strncmp_argp;
+extern struct argp bench_hashmap_lookup_argp;
+extern struct argp bench_local_storage_create_argp;
+extern struct argp bench_htab_mem_argp;
+extern struct argp bench_trigger_batch_argp;
+extern struct argp bench_crypto_argp;
+extern struct argp bench_sockmap_argp;
+extern struct argp bench_lpm_trie_map_argp;
+
+static const struct argp_child bench_parsers[] = {
+	{ &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 },
+	{ &bench_bloom_map_argp, 0, "Bloom filter map benchmark", 0 },
+	{ &bench_bpf_loop_argp, 0, "bpf_loop helper benchmark", 0 },
+	{ &bench_local_storage_argp, 0, "local_storage benchmark", 0 },
+	{ &bench_strncmp_argp, 0, "bpf_strncmp helper benchmark", 0 },
+	{ &bench_local_storage_rcu_tasks_trace_argp, 0,
+		"local_storage RCU Tasks Trace slowdown benchmark", 0 },
+	{ &bench_hashmap_lookup_argp, 0, "Hashmap lookup benchmark", 0 },
+	{ &bench_local_storage_create_argp, 0, "local-storage-create benchmark", 0 },
+	{ &bench_htab_mem_argp, 0, "hash map memory benchmark", 0 },
+	{ &bench_trigger_batch_argp, 0, "BPF triggering benchmark", 0 },
+	{ &bench_crypto_argp, 0, "bpf crypto benchmark", 0 },
+	{ &bench_sockmap_argp, 0, "bpf sockmap benchmark", 0 },
+	{ &bench_lpm_trie_map_argp, 0, "LPM trie map benchmark", 0 },
+	{},
+};
+
+/* Make pos_args global, so that we can run argp_parse twice, if necessary */
+static int pos_args;
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case 'v':
+		env.verbose = true;
+		break;
+	case 'l':
+		env.list = true;
+		break;
+	case 'd':
+		env.duration_sec = strtol(arg, NULL, 10);
+		if (env.duration_sec <= 0) {
+			fprintf(stderr, "Invalid duration: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'w':
+		env.warmup_sec = strtol(arg, NULL, 10);
+		if (env.warmup_sec <= 0) {
+			fprintf(stderr, "Invalid warm-up duration: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'p':
+		env.producer_cnt = strtol(arg, NULL, 10);
+		if (env.producer_cnt < 0) {
+			fprintf(stderr, "Invalid producer count: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'c':
+		env.consumer_cnt = strtol(arg, NULL, 10);
+		if (env.consumer_cnt < 0) {
+			fprintf(stderr, "Invalid consumer count: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'a':
+		env.affinity = true;
+		break;
+	case 'q':
+		env.quiet = true;
+		break;
+	case ARG_PROD_AFFINITY_SET:
+		env.affinity = true;
+		if (parse_num_list(arg, &env.prod_cpus.cpus,
+				   &env.prod_cpus.cpus_len)) {
+			fprintf(stderr, "Invalid format of CPU set for producers.");
+			argp_usage(state);
+		}
+		break;
+	case ARG_CONS_AFFINITY_SET:
+		env.affinity = true;
+		if (parse_num_list(arg, &env.cons_cpus.cpus,
+				   &env.cons_cpus.cpus_len)) {
+			fprintf(stderr, "Invalid format of CPU set for consumers.");
+			argp_usage(state);
+		}
+		break;
+	case ARGP_KEY_ARG:
+		if (pos_args++) {
+			fprintf(stderr,
+				"Unrecognized positional argument: %s\n", arg);
+			argp_usage(state);
+		}
+		env.bench_name = strdup(arg);
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+static void parse_cmdline_args_init(int argc, char **argv)
+{
+	static const struct argp argp = {
+		.options = opts,
+		.parser = parse_arg,
+		.doc = argp_program_doc,
+		.children = bench_parsers,
+	};
+	if (argp_parse(&argp, argc, argv, 0, NULL, NULL))
+		exit(1);
+}
+
+static void parse_cmdline_args_final(int argc, char **argv)
+{
+	struct argp_child bench_parsers[2] = {};
+	const struct argp argp = {
+		.options = opts,
+		.parser = parse_arg,
+		.doc = argp_program_doc,
+		.children = bench_parsers,
+	};
+
+	/* Parse arguments the second time with the correct set of parsers */
+	if (bench->argp) {
+		bench_parsers[0].argp = bench->argp;
+		bench_parsers[0].header = bench->name;
+		pos_args = 0;
+		if (argp_parse(&argp, argc, argv, 0, NULL, NULL))
+			exit(1);
+	}
+}
+
+static void collect_measurements(long delta_ns);
+
+static __u64 last_time_ns;
+static void sigalarm_handler(int signo)
+{
+	long new_time_ns = get_time_ns();
+	long delta_ns = new_time_ns - last_time_ns;
+
+	collect_measurements(delta_ns);
+
+	last_time_ns = new_time_ns;
+}
+
+/* set up periodic 1-second timer */
+static void setup_timer()
+{
+	static struct sigaction sigalarm_action = {
+		.sa_handler = sigalarm_handler,
+	};
+	struct itimerval timer_settings = {};
+	int err;
+
+	last_time_ns = get_time_ns();
+	err = sigaction(SIGALRM, &sigalarm_action, NULL);
+	if (err < 0) {
+		fprintf(stderr, "failed to install SIGALRM handler: %d\n", -errno);
+		exit(1);
+	}
+	timer_settings.it_interval.tv_sec = 1;
+	timer_settings.it_value.tv_sec = 1;
+	err = setitimer(ITIMER_REAL, &timer_settings, NULL);
+	if (err < 0) {
+		fprintf(stderr, "failed to arm interval timer: %d\n", -errno);
+		exit(1);
+	}
+}
+
+static void set_thread_affinity(pthread_t thread, int cpu)
+{
+	cpu_set_t cpuset;
+	int err;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+	err = pthread_setaffinity_np(thread, sizeof(cpuset), &cpuset);
+	if (err) {
+		fprintf(stderr, "setting affinity to CPU #%d failed: %d\n",
+			cpu, -err);
+		exit(1);
+	}
+}
+
+static int next_cpu(struct cpu_set *cpu_set)
+{
+	if (cpu_set->cpus) {
+		int i;
+
+		/* find next available CPU */
+		for (i = cpu_set->next_cpu; i < cpu_set->cpus_len; i++) {
+			if (cpu_set->cpus[i]) {
+				cpu_set->next_cpu = i + 1;
+				return i;
+			}
+		}
+		fprintf(stderr, "Not enough CPUs specified, need CPU #%d or higher.\n", i);
+		exit(1);
+	}
+
+	return cpu_set->next_cpu++ % env.nr_cpus;
+}
+
+static struct bench_state {
+	int res_cnt;
+	struct bench_res *results;
+	pthread_t *consumers;
+	pthread_t *producers;
+} state;
+
+const struct bench *bench = NULL;
+
+extern const struct bench bench_count_global;
+extern const struct bench bench_count_local;
+extern const struct bench bench_rename_base;
+extern const struct bench bench_rename_kprobe;
+extern const struct bench bench_rename_kretprobe;
+extern const struct bench bench_rename_rawtp;
+extern const struct bench bench_rename_fentry;
+extern const struct bench bench_rename_fexit;
+
+/* pure counting benchmarks to establish theoretical limits */
+extern const struct bench bench_trig_usermode_count;
+extern const struct bench bench_trig_syscall_count;
+extern const struct bench bench_trig_kernel_count;
+
+/* batched, staying mostly in-kernel benchmarks */
+extern const struct bench bench_trig_kprobe;
+extern const struct bench bench_trig_kretprobe;
+extern const struct bench bench_trig_kprobe_multi;
+extern const struct bench bench_trig_kretprobe_multi;
+extern const struct bench bench_trig_fentry;
+extern const struct bench bench_trig_kprobe_multi_all;
+extern const struct bench bench_trig_kretprobe_multi_all;
+extern const struct bench bench_trig_fexit;
+extern const struct bench bench_trig_fmodret;
+extern const struct bench bench_trig_tp;
+extern const struct bench bench_trig_rawtp;
+
+/* uprobe/uretprobe benchmarks */
+extern const struct bench bench_trig_uprobe_nop;
+extern const struct bench bench_trig_uretprobe_nop;
+extern const struct bench bench_trig_uprobe_push;
+extern const struct bench bench_trig_uretprobe_push;
+extern const struct bench bench_trig_uprobe_ret;
+extern const struct bench bench_trig_uretprobe_ret;
+extern const struct bench bench_trig_uprobe_multi_nop;
+extern const struct bench bench_trig_uretprobe_multi_nop;
+extern const struct bench bench_trig_uprobe_multi_push;
+extern const struct bench bench_trig_uretprobe_multi_push;
+extern const struct bench bench_trig_uprobe_multi_ret;
+extern const struct bench bench_trig_uretprobe_multi_ret;
+#ifdef __x86_64__
+extern const struct bench bench_trig_uprobe_nop5;
+extern const struct bench bench_trig_uretprobe_nop5;
+extern const struct bench bench_trig_uprobe_multi_nop5;
+extern const struct bench bench_trig_uretprobe_multi_nop5;
+#endif
+
+extern const struct bench bench_rb_libbpf;
+extern const struct bench bench_rb_custom;
+extern const struct bench bench_pb_libbpf;
+extern const struct bench bench_pb_custom;
+extern const struct bench bench_bloom_lookup;
+extern const struct bench bench_bloom_update;
+extern const struct bench bench_bloom_false_positive;
+extern const struct bench bench_hashmap_without_bloom;
+extern const struct bench bench_hashmap_with_bloom;
+extern const struct bench bench_bpf_loop;
+extern const struct bench bench_strncmp_no_helper;
+extern const struct bench bench_strncmp_helper;
+extern const struct bench bench_bpf_hashmap_full_update;
+extern const struct bench bench_local_storage_cache_seq_get;
+extern const struct bench bench_local_storage_cache_interleaved_get;
+extern const struct bench bench_local_storage_cache_hashmap_control;
+extern const struct bench bench_local_storage_tasks_trace;
+extern const struct bench bench_bpf_hashmap_lookup;
+extern const struct bench bench_local_storage_create;
+extern const struct bench bench_htab_mem;
+extern const struct bench bench_crypto_encrypt;
+extern const struct bench bench_crypto_decrypt;
+extern const struct bench bench_sockmap;
+extern const struct bench bench_lpm_trie_noop;
+extern const struct bench bench_lpm_trie_baseline;
+extern const struct bench bench_lpm_trie_lookup;
+extern const struct bench bench_lpm_trie_insert;
+extern const struct bench bench_lpm_trie_update;
+extern const struct bench bench_lpm_trie_delete;
+extern const struct bench bench_lpm_trie_free;
+
+static const struct bench *benchs[] = {
+	&bench_count_global,
+	&bench_count_local,
+	&bench_rename_base,
+	&bench_rename_kprobe,
+	&bench_rename_kretprobe,
+	&bench_rename_rawtp,
+	&bench_rename_fentry,
+	&bench_rename_fexit,
+	/* pure counting benchmarks for establishing theoretical limits */
+	&bench_trig_usermode_count,
+	&bench_trig_kernel_count,
+	&bench_trig_syscall_count,
+	/* batched, staying mostly in-kernel triggers */
+	&bench_trig_kprobe,
+	&bench_trig_kretprobe,
+	&bench_trig_kprobe_multi,
+	&bench_trig_kretprobe_multi,
+	&bench_trig_fentry,
+	&bench_trig_kprobe_multi_all,
+	&bench_trig_kretprobe_multi_all,
+	&bench_trig_fexit,
+	&bench_trig_fmodret,
+	&bench_trig_tp,
+	&bench_trig_rawtp,
+	/* uprobes */
+	&bench_trig_uprobe_nop,
+	&bench_trig_uretprobe_nop,
+	&bench_trig_uprobe_push,
+	&bench_trig_uretprobe_push,
+	&bench_trig_uprobe_ret,
+	&bench_trig_uretprobe_ret,
+	&bench_trig_uprobe_multi_nop,
+	&bench_trig_uretprobe_multi_nop,
+	&bench_trig_uprobe_multi_push,
+	&bench_trig_uretprobe_multi_push,
+	&bench_trig_uprobe_multi_ret,
+	&bench_trig_uretprobe_multi_ret,
+#ifdef __x86_64__
+	&bench_trig_uprobe_nop5,
+	&bench_trig_uretprobe_nop5,
+	&bench_trig_uprobe_multi_nop5,
+	&bench_trig_uretprobe_multi_nop5,
+#endif
+	/* ringbuf/perfbuf benchmarks */
+	&bench_rb_libbpf,
+	&bench_rb_custom,
+	&bench_pb_libbpf,
+	&bench_pb_custom,
+	&bench_bloom_lookup,
+	&bench_bloom_update,
+	&bench_bloom_false_positive,
+	&bench_hashmap_without_bloom,
+	&bench_hashmap_with_bloom,
+	&bench_bpf_loop,
+	&bench_strncmp_no_helper,
+	&bench_strncmp_helper,
+	&bench_bpf_hashmap_full_update,
+	&bench_local_storage_cache_seq_get,
+	&bench_local_storage_cache_interleaved_get,
+	&bench_local_storage_cache_hashmap_control,
+	&bench_local_storage_tasks_trace,
+	&bench_bpf_hashmap_lookup,
+	&bench_local_storage_create,
+	&bench_htab_mem,
+	&bench_crypto_encrypt,
+	&bench_crypto_decrypt,
+	&bench_sockmap,
+	&bench_lpm_trie_noop,
+	&bench_lpm_trie_baseline,
+	&bench_lpm_trie_lookup,
+	&bench_lpm_trie_insert,
+	&bench_lpm_trie_update,
+	&bench_lpm_trie_delete,
+	&bench_lpm_trie_free,
+};
+
+static void find_benchmark(void)
+{
+	int i;
+
+	if (!env.bench_name) {
+		fprintf(stderr, "benchmark name is not specified\n");
+		exit(1);
+	}
+	for (i = 0; i < ARRAY_SIZE(benchs); i++) {
+		if (strcmp(benchs[i]->name, env.bench_name) == 0) {
+			bench = benchs[i];
+			break;
+		}
+	}
+	if (!bench) {
+		fprintf(stderr, "benchmark '%s' not found\n", env.bench_name);
+		exit(1);
+	}
+}
+
+static void setup_benchmark(void)
+{
+	int i, err;
+
+	if (!env.quiet)
+		printf("Setting up benchmark '%s'...\n", bench->name);
+
+	state.producers = calloc(env.producer_cnt, sizeof(*state.producers));
+	state.consumers = calloc(env.consumer_cnt, sizeof(*state.consumers));
+	state.results = calloc(env.duration_sec + env.warmup_sec + 2,
+			       sizeof(*state.results));
+	if (!state.producers || !state.consumers || !state.results)
+		exit(1);
+
+	if (bench->validate)
+		bench->validate();
+	if (bench->setup)
+		bench->setup();
+
+	for (i = 0; i < env.consumer_cnt; i++) {
+		if (!bench->consumer_thread) {
+			fprintf(stderr, "benchmark doesn't support consumers!\n");
+			exit(1);
+		}
+		err = pthread_create(&state.consumers[i], NULL,
+				     bench->consumer_thread, (void *)(long)i);
+		if (err) {
+			fprintf(stderr, "failed to create consumer thread #%d: %d\n",
+				i, -err);
+			exit(1);
+		}
+		if (env.affinity)
+			set_thread_affinity(state.consumers[i],
+					    next_cpu(&env.cons_cpus));
+	}
+
+	/* unless explicit producer CPU list is specified, continue after
+	 * last consumer CPU
+	 */
+	if (!env.prod_cpus.cpus)
+		env.prod_cpus.next_cpu = env.cons_cpus.next_cpu;
+
+	for (i = 0; i < env.producer_cnt; i++) {
+		if (!bench->producer_thread) {
+			fprintf(stderr, "benchmark doesn't support producers!\n");
+			exit(1);
+		}
+		err = pthread_create(&state.producers[i], NULL,
+				     bench->producer_thread, (void *)(long)i);
+		if (err) {
+			fprintf(stderr, "failed to create producer thread #%d: %d\n",
+				i, -err);
+			exit(1);
+		}
+		if (env.affinity)
+			set_thread_affinity(state.producers[i],
+					    next_cpu(&env.prod_cpus));
+	}
+
+	if (!env.quiet)
+		printf("Benchmark '%s' started.\n", bench->name);
+}
+
+static pthread_mutex_t bench_done_mtx = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t bench_done = PTHREAD_COND_INITIALIZER;
+
+static void collect_measurements(long delta_ns) {
+	int iter = state.res_cnt++;
+	struct bench_res *res = &state.results[iter];
+
+	bench->measure(res);
+
+	if (bench->report_progress)
+		bench->report_progress(iter, res, delta_ns);
+
+	if (iter == env.duration_sec + env.warmup_sec) {
+		pthread_mutex_lock(&bench_done_mtx);
+		pthread_cond_signal(&bench_done);
+		pthread_mutex_unlock(&bench_done_mtx);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	env.nr_cpus = get_nprocs();
+	parse_cmdline_args_init(argc, argv);
+
+	if (env.list) {
+		int i;
+
+		printf("Available benchmarks:\n");
+		for (i = 0; i < ARRAY_SIZE(benchs); i++) {
+			printf("- %s\n", benchs[i]->name);
+		}
+		return 0;
+	}
+
+	find_benchmark();
+	parse_cmdline_args_final(argc, argv);
+
+	setup_benchmark();
+
+	setup_timer();
+
+	pthread_mutex_lock(&bench_done_mtx);
+	pthread_cond_wait(&bench_done, &bench_done_mtx);
+	pthread_mutex_unlock(&bench_done_mtx);
+
+	if (bench->report_final)
+		/* skip first sample */
+		bench->report_final(state.results + env.warmup_sec,
+				    state.res_cnt - env.warmup_sec);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/bench.h b/tools/testing/selftests/bpf/bench.h
new file mode 100644
index 000000000000..bea323820ffb
--- /dev/null
+++ b/tools/testing/selftests/bpf/bench.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#pragma once
+#include <stdlib.h>
+#include <stdbool.h>
+#include <linux/err.h>
+#include <errno.h>
+#include <unistd.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <math.h>
+#include <time.h>
+#include <sys/syscall.h>
+#include <limits.h>
+
+struct cpu_set {
+	bool *cpus;
+	int cpus_len;
+	int next_cpu;
+};
+
+struct env {
+	char *bench_name;
+	int duration_sec;
+	int warmup_sec;
+	bool verbose;
+	bool list;
+	bool affinity;
+	bool quiet;
+	int consumer_cnt;
+	int producer_cnt;
+	int nr_cpus;
+	struct cpu_set prod_cpus;
+	struct cpu_set cons_cpus;
+};
+
+struct basic_stats {
+	double mean;
+	double stddev;
+};
+
+struct bench_res {
+	long hits;
+	long drops;
+	long false_hits;
+	long important_hits;
+	unsigned long gp_ns;
+	unsigned long gp_ct;
+	unsigned int stime;
+	unsigned long duration_ns;
+};
+
+struct bench {
+	const char *name;
+	const struct argp *argp;
+	void (*validate)(void);
+	void (*setup)(void);
+	void *(*producer_thread)(void *ctx);
+	void *(*consumer_thread)(void *ctx);
+	void (*measure)(struct bench_res* res);
+	void (*report_progress)(int iter, struct bench_res* res, long delta_ns);
+	void (*report_final)(struct bench_res res[], int res_cnt);
+};
+
+struct counter {
+	long value;
+} __attribute__((aligned(128)));
+
+extern struct env env;
+extern const struct bench *bench;
+
+void setup_libbpf(void);
+void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns);
+void hits_drops_report_final(struct bench_res res[], int res_cnt);
+void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
+void false_hits_report_final(struct bench_res res[], int res_cnt);
+void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
+void ops_report_final(struct bench_res res[], int res_cnt);
+void local_storage_report_progress(int iter, struct bench_res *res,
+				   long delta_ns);
+void local_storage_report_final(struct bench_res res[], int res_cnt);
+void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
+				      struct basic_stats *gp_stat);
+void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
+				    struct basic_stats *gp_stat);
+
+static inline void atomic_inc(long *value)
+{
+	(void)__atomic_add_fetch(value, 1, __ATOMIC_RELAXED);
+}
+
+static inline void atomic_add(long *value, long n)
+{
+	(void)__atomic_add_fetch(value, n, __ATOMIC_RELAXED);
+}
+
+static inline long atomic_swap(long *value, long n)
+{
+	return __atomic_exchange_n(value, n, __ATOMIC_RELAXED);
+}
diff --git a/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c
new file mode 100644
index 000000000000..e289dd1a14ee
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bloom_filter_map.c
@@ -0,0 +1,477 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <argp.h>
+#include <linux/log2.h>
+#include <pthread.h>
+#include "bench.h"
+#include "bloom_filter_bench.skel.h"
+#include "bpf_util.h"
+
+static struct ctx {
+	bool use_array_map;
+	bool use_hashmap;
+	bool hashmap_use_bloom;
+	bool count_false_hits;
+
+	struct bloom_filter_bench *skel;
+
+	int bloom_fd;
+	int hashmap_fd;
+	int array_map_fd;
+
+	pthread_mutex_t map_done_mtx;
+	pthread_cond_t map_done_cv;
+	bool map_done;
+	bool map_prepare_err;
+
+	__u32 next_map_idx;
+} ctx = {
+	.map_done_mtx = PTHREAD_MUTEX_INITIALIZER,
+	.map_done_cv = PTHREAD_COND_INITIALIZER,
+};
+
+struct stat {
+	__u32 stats[3];
+};
+
+static struct {
+	__u32 nr_entries;
+	__u8 nr_hash_funcs;
+	__u8 value_size;
+} args = {
+	.nr_entries = 1000,
+	.nr_hash_funcs = 3,
+	.value_size = 8,
+};
+
+enum {
+	ARG_NR_ENTRIES = 3000,
+	ARG_NR_HASH_FUNCS = 3001,
+	ARG_VALUE_SIZE = 3002,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_entries", ARG_NR_ENTRIES, "NR_ENTRIES", 0,
+		"Set number of expected unique entries in the bloom filter"},
+	{ "nr_hash_funcs", ARG_NR_HASH_FUNCS, "NR_HASH_FUNCS", 0,
+		"Set number of hash functions in the bloom filter"},
+	{ "value_size", ARG_VALUE_SIZE, "VALUE_SIZE", 0,
+		"Set value size (in bytes) of bloom filter entries"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_ENTRIES:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "Invalid nr_entries count.");
+			argp_usage(state);
+		}
+		args.nr_entries = ret;
+		break;
+	case ARG_NR_HASH_FUNCS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > 15) {
+			fprintf(stderr,
+				"The bloom filter must use 1 to 15 hash functions.");
+			argp_usage(state);
+		}
+		args.nr_hash_funcs = ret;
+		break;
+	case ARG_VALUE_SIZE:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 2 || ret > 256) {
+			fprintf(stderr,
+				"Invalid value size. Must be between 2 and 256 bytes");
+			argp_usage(state);
+		}
+		args.value_size = ret;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+/* exported into benchmark runner */
+const struct argp bench_bloom_map_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr,
+			"The bloom filter benchmarks do not support consumer\n");
+		exit(1);
+	}
+}
+
+static inline void trigger_bpf_program(void)
+{
+	syscall(__NR_getpgid);
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		trigger_bpf_program();
+
+	return NULL;
+}
+
+static void *map_prepare_thread(void *arg)
+{
+	__u32 val_size, i;
+	void *val = NULL;
+	int err;
+
+	val_size = args.value_size;
+	val = malloc(val_size);
+	if (!val) {
+		ctx.map_prepare_err = true;
+		goto done;
+	}
+
+	while (true) {
+		i = __atomic_add_fetch(&ctx.next_map_idx, 1, __ATOMIC_RELAXED);
+		if (i > args.nr_entries)
+			break;
+
+again:
+		/* Populate hashmap, bloom filter map, and array map with the same
+		 * random values
+		 */
+		err = syscall(__NR_getrandom, val, val_size, 0);
+		if (err != val_size) {
+			ctx.map_prepare_err = true;
+			fprintf(stderr, "failed to get random value: %d\n", -errno);
+			break;
+		}
+
+		if (ctx.use_hashmap) {
+			err = bpf_map_update_elem(ctx.hashmap_fd, val, val, BPF_NOEXIST);
+			if (err) {
+				if (err != -EEXIST) {
+					ctx.map_prepare_err = true;
+					fprintf(stderr, "failed to add elem to hashmap: %d\n",
+						-errno);
+					break;
+				}
+				goto again;
+			}
+		}
+
+		i--;
+
+		if (ctx.use_array_map) {
+			err = bpf_map_update_elem(ctx.array_map_fd, &i, val, 0);
+			if (err) {
+				ctx.map_prepare_err = true;
+				fprintf(stderr, "failed to add elem to array map: %d\n", -errno);
+				break;
+			}
+		}
+
+		if (ctx.use_hashmap && !ctx.hashmap_use_bloom)
+			continue;
+
+		err = bpf_map_update_elem(ctx.bloom_fd, NULL, val, 0);
+		if (err) {
+			ctx.map_prepare_err = true;
+			fprintf(stderr,
+				"failed to add elem to bloom filter map: %d\n", -errno);
+			break;
+		}
+	}
+done:
+	pthread_mutex_lock(&ctx.map_done_mtx);
+	ctx.map_done = true;
+	pthread_cond_signal(&ctx.map_done_cv);
+	pthread_mutex_unlock(&ctx.map_done_mtx);
+
+	if (val)
+		free(val);
+
+	return NULL;
+}
+
+static void populate_maps(void)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	pthread_t map_thread;
+	int i, err, nr_rand_bytes;
+
+	ctx.bloom_fd = bpf_map__fd(ctx.skel->maps.bloom_map);
+	ctx.hashmap_fd = bpf_map__fd(ctx.skel->maps.hashmap);
+	ctx.array_map_fd = bpf_map__fd(ctx.skel->maps.array_map);
+
+	for (i = 0; i < nr_cpus; i++) {
+		err = pthread_create(&map_thread, NULL, map_prepare_thread,
+				     NULL);
+		if (err) {
+			fprintf(stderr, "failed to create pthread: %d\n", -errno);
+			exit(1);
+		}
+	}
+
+	pthread_mutex_lock(&ctx.map_done_mtx);
+	while (!ctx.map_done)
+		pthread_cond_wait(&ctx.map_done_cv, &ctx.map_done_mtx);
+	pthread_mutex_unlock(&ctx.map_done_mtx);
+
+	if (ctx.map_prepare_err)
+		exit(1);
+
+	nr_rand_bytes = syscall(__NR_getrandom, ctx.skel->bss->rand_vals,
+				ctx.skel->rodata->nr_rand_bytes, 0);
+	if (nr_rand_bytes != ctx.skel->rodata->nr_rand_bytes) {
+		fprintf(stderr, "failed to get random bytes\n");
+		exit(1);
+	}
+}
+
+static void check_args(void)
+{
+	if (args.value_size < 8)  {
+		__u64 nr_unique_entries = 1ULL << (args.value_size * 8);
+
+		if (args.nr_entries > nr_unique_entries) {
+			fprintf(stderr,
+				"Not enough unique values for the nr_entries requested\n");
+			exit(1);
+		}
+	}
+}
+
+static struct bloom_filter_bench *setup_skeleton(void)
+{
+	struct bloom_filter_bench *skel;
+
+	check_args();
+
+	setup_libbpf();
+
+	skel = bloom_filter_bench__open();
+	if (!skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	skel->rodata->hashmap_use_bloom = ctx.hashmap_use_bloom;
+	skel->rodata->count_false_hits = ctx.count_false_hits;
+
+	/* Resize number of entries */
+	bpf_map__set_max_entries(skel->maps.hashmap, args.nr_entries);
+
+	bpf_map__set_max_entries(skel->maps.array_map, args.nr_entries);
+
+	bpf_map__set_max_entries(skel->maps.bloom_map, args.nr_entries);
+
+	/* Set value size */
+	bpf_map__set_value_size(skel->maps.array_map, args.value_size);
+
+	bpf_map__set_value_size(skel->maps.bloom_map, args.value_size);
+
+	bpf_map__set_value_size(skel->maps.hashmap, args.value_size);
+
+	/* For the hashmap, we use the value as the key as well */
+	bpf_map__set_key_size(skel->maps.hashmap, args.value_size);
+
+	skel->bss->value_size = args.value_size;
+
+	/* Set number of hash functions */
+	bpf_map__set_map_extra(skel->maps.bloom_map, args.nr_hash_funcs);
+
+	if (bloom_filter_bench__load(skel)) {
+		fprintf(stderr, "failed to load skeleton\n");
+		exit(1);
+	}
+
+	return skel;
+}
+
+static void bloom_lookup_setup(void)
+{
+	struct bpf_link *link;
+
+	ctx.use_array_map = true;
+
+	ctx.skel = setup_skeleton();
+
+	populate_maps();
+
+	link = bpf_program__attach(ctx.skel->progs.bloom_lookup);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void bloom_update_setup(void)
+{
+	struct bpf_link *link;
+
+	ctx.use_array_map = true;
+
+	ctx.skel = setup_skeleton();
+
+	populate_maps();
+
+	link = bpf_program__attach(ctx.skel->progs.bloom_update);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void false_positive_setup(void)
+{
+	struct bpf_link *link;
+
+	ctx.use_hashmap = true;
+	ctx.hashmap_use_bloom = true;
+	ctx.count_false_hits = true;
+
+	ctx.skel = setup_skeleton();
+
+	populate_maps();
+
+	link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void hashmap_with_bloom_setup(void)
+{
+	struct bpf_link *link;
+
+	ctx.use_hashmap = true;
+	ctx.hashmap_use_bloom = true;
+
+	ctx.skel = setup_skeleton();
+
+	populate_maps();
+
+	link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void hashmap_no_bloom_setup(void)
+{
+	struct bpf_link *link;
+
+	ctx.use_hashmap = true;
+
+	ctx.skel = setup_skeleton();
+
+	populate_maps();
+
+	link = bpf_program__attach(ctx.skel->progs.bloom_hashmap_lookup);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void measure(struct bench_res *res)
+{
+	unsigned long total_hits = 0, total_drops = 0, total_false_hits = 0;
+	static unsigned long last_hits, last_drops, last_false_hits;
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	int hit_key, drop_key, false_hit_key;
+	int i;
+
+	hit_key = ctx.skel->rodata->hit_key;
+	drop_key = ctx.skel->rodata->drop_key;
+	false_hit_key = ctx.skel->rodata->false_hit_key;
+
+	if (ctx.skel->bss->error != 0) {
+		fprintf(stderr, "error (%d) when searching the bloom filter\n",
+			ctx.skel->bss->error);
+		exit(1);
+	}
+
+	for (i = 0; i < nr_cpus; i++) {
+		struct stat *s = (void *)&ctx.skel->bss->percpu_stats[i];
+
+		total_hits += s->stats[hit_key];
+		total_drops += s->stats[drop_key];
+		total_false_hits += s->stats[false_hit_key];
+	}
+
+	res->hits = total_hits - last_hits;
+	res->drops = total_drops - last_drops;
+	res->false_hits = total_false_hits - last_false_hits;
+
+	last_hits = total_hits;
+	last_drops = total_drops;
+	last_false_hits = total_false_hits;
+}
+
+const struct bench bench_bloom_lookup = {
+	.name = "bloom-lookup",
+	.argp = &bench_bloom_map_argp,
+	.validate = validate,
+	.setup = bloom_lookup_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_bloom_update = {
+	.name = "bloom-update",
+	.argp = &bench_bloom_map_argp,
+	.validate = validate,
+	.setup = bloom_update_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_bloom_false_positive = {
+	.name = "bloom-false-positive",
+	.argp = &bench_bloom_map_argp,
+	.validate = validate,
+	.setup = false_positive_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = false_hits_report_progress,
+	.report_final = false_hits_report_final,
+};
+
+const struct bench bench_hashmap_without_bloom = {
+	.name = "hashmap-without-bloom",
+	.argp = &bench_bloom_map_argp,
+	.validate = validate,
+	.setup = hashmap_no_bloom_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_hashmap_with_bloom = {
+	.name = "hashmap-with-bloom",
+	.argp = &bench_bloom_map_argp,
+	.validate = validate,
+	.setup = hashmap_with_bloom_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c b/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c
new file mode 100644
index 000000000000..2845edaba8db
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bpf_crypto.c
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <argp.h>
+#include "bench.h"
+#include "crypto_bench.skel.h"
+
+#define MAX_CIPHER_LEN 32
+static char *input;
+static struct crypto_ctx {
+	struct crypto_bench *skel;
+	int pfd;
+} ctx;
+
+static struct crypto_args {
+	u32 crypto_len;
+	char *crypto_cipher;
+} args = {
+	.crypto_len = 16,
+	.crypto_cipher = "ecb(aes)",
+};
+
+enum {
+	ARG_CRYPTO_LEN = 5000,
+	ARG_CRYPTO_CIPHER = 5001,
+};
+
+static const struct argp_option opts[] = {
+	{ "crypto-len", ARG_CRYPTO_LEN, "CRYPTO_LEN", 0,
+	  "Set the length of crypto buffer" },
+	{ "crypto-cipher", ARG_CRYPTO_CIPHER, "CRYPTO_CIPHER", 0,
+	  "Set the cipher to use (default:ecb(aes))" },
+	{},
+};
+
+static error_t crypto_parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_CRYPTO_LEN:
+		args.crypto_len = strtoul(arg, NULL, 10);
+		if (!args.crypto_len ||
+		    args.crypto_len > sizeof(ctx.skel->bss->dst)) {
+			fprintf(stderr, "Invalid crypto buffer len (limit %zu)\n",
+				sizeof(ctx.skel->bss->dst));
+			argp_usage(state);
+		}
+		break;
+	case ARG_CRYPTO_CIPHER:
+		args.crypto_cipher = strdup(arg);
+		if (!strlen(args.crypto_cipher) ||
+		    strlen(args.crypto_cipher) > MAX_CIPHER_LEN) {
+			fprintf(stderr, "Invalid crypto cipher len (limit %d)\n",
+				MAX_CIPHER_LEN);
+			argp_usage(state);
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_crypto_argp = {
+	.options = opts,
+	.parser = crypto_parse_arg,
+};
+
+static void crypto_validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "bpf crypto benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void crypto_setup(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+	int err, pfd;
+	size_t i, sz;
+
+	sz = args.crypto_len;
+	if (!sz || sz > sizeof(ctx.skel->bss->dst)) {
+		fprintf(stderr, "invalid encrypt buffer size (source %zu, target %zu)\n",
+			sz, sizeof(ctx.skel->bss->dst));
+		exit(1);
+	}
+
+	setup_libbpf();
+
+	ctx.skel = crypto_bench__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	snprintf(ctx.skel->bss->cipher, 128, "%s", args.crypto_cipher);
+	memcpy(ctx.skel->bss->key, "12345678testtest", 16);
+	ctx.skel->bss->key_len = 16;
+	ctx.skel->bss->authsize = 0;
+
+	srandom(time(NULL));
+	input = malloc(sz);
+	for (i = 0; i < sz - 1; i++)
+		input[i] = '1' + random() % 9;
+	input[sz - 1] = '\0';
+
+	ctx.skel->rodata->len = args.crypto_len;
+
+	err = crypto_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to load skeleton\n");
+		crypto_bench__destroy(ctx.skel);
+		exit(1);
+	}
+
+	pfd = bpf_program__fd(ctx.skel->progs.crypto_setup);
+	if (pfd < 0) {
+		fprintf(stderr, "failed to get fd for setup prog\n");
+		crypto_bench__destroy(ctx.skel);
+		exit(1);
+	}
+
+	err = bpf_prog_test_run_opts(pfd, &opts);
+	if (err || ctx.skel->bss->status) {
+		fprintf(stderr, "failed to run setup prog: err %d, status %d\n",
+			err, ctx.skel->bss->status);
+		crypto_bench__destroy(ctx.skel);
+		exit(1);
+	}
+}
+
+static void crypto_encrypt_setup(void)
+{
+	crypto_setup();
+	ctx.pfd = bpf_program__fd(ctx.skel->progs.crypto_encrypt);
+}
+
+static void crypto_decrypt_setup(void)
+{
+	crypto_setup();
+	ctx.pfd = bpf_program__fd(ctx.skel->progs.crypto_decrypt);
+}
+
+static void crypto_measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->hits, 0);
+}
+
+static void *crypto_producer(void *unused)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.repeat = 64,
+		.data_in = input,
+		.data_size_in = args.crypto_len,
+	);
+
+	while (true)
+		(void)bpf_prog_test_run_opts(ctx.pfd, &opts);
+	return NULL;
+}
+
+const struct bench bench_crypto_encrypt = {
+	.name = "crypto-encrypt",
+	.argp = &bench_crypto_argp,
+	.validate = crypto_validate,
+	.setup = crypto_encrypt_setup,
+	.producer_thread = crypto_producer,
+	.measure = crypto_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_crypto_decrypt = {
+	.name = "crypto-decrypt",
+	.argp = &bench_crypto_argp,
+	.validate = crypto_validate,
+	.setup = crypto_decrypt_setup,
+	.producer_thread = crypto_producer,
+	.measure = crypto_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c
new file mode 100644
index 000000000000..ee1dc12c5e5e
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include "bench.h"
+#include "bpf_hashmap_full_update_bench.skel.h"
+#include "bpf_util.h"
+
+/* BPF triggering benchmarks */
+static struct ctx {
+	struct bpf_hashmap_full_update_bench *skel;
+} ctx;
+
+#define MAX_LOOP_NUM 10000
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void *producer(void *input)
+{
+	while (true) {
+		/* trigger the bpf program */
+		syscall(__NR_getpgid);
+	}
+
+	return NULL;
+}
+
+static void measure(struct bench_res *res)
+{
+}
+
+static void setup(void)
+{
+	struct bpf_link *link;
+	int map_fd, i, max_entries;
+
+	setup_libbpf();
+
+	ctx.skel = bpf_hashmap_full_update_bench__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	ctx.skel->bss->nr_loops = MAX_LOOP_NUM;
+
+	link = bpf_program__attach(ctx.skel->progs.benchmark);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+
+	/* fill hash_map */
+	map_fd = bpf_map__fd(ctx.skel->maps.hash_map_bench);
+	max_entries = bpf_map__max_entries(ctx.skel->maps.hash_map_bench);
+	for (i = 0; i < max_entries; i++)
+		bpf_map_update_elem(map_fd, &i, &i, BPF_ANY);
+}
+
+static void hashmap_report_final(struct bench_res res[], int res_cnt)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	int i;
+
+	for (i = 0; i < nr_cpus; i++) {
+		u64 time = ctx.skel->bss->percpu_time[i];
+
+		if (!time)
+			continue;
+
+		printf("%d:hash_map_full_perf %lld events per sec\n",
+		       i, ctx.skel->bss->nr_loops * 1000000000ll / time);
+	}
+}
+
+const struct bench bench_bpf_hashmap_full_update = {
+	.name = "bpf-hashmap-full-update",
+	.validate = validate,
+	.setup = setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = NULL,
+	.report_final = hashmap_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_lookup.c b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_lookup.c
new file mode 100644
index 000000000000..279ff1b8b5b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_lookup.c
@@ -0,0 +1,277 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+
+#include <sys/random.h>
+#include <argp.h>
+#include "bench.h"
+#include "bpf_hashmap_lookup.skel.h"
+#include "bpf_util.h"
+
+/* BPF triggering benchmarks */
+static struct ctx {
+	struct bpf_hashmap_lookup *skel;
+} ctx;
+
+/* only available to kernel, so define it here */
+#define BPF_MAX_LOOPS (1<<23)
+
+#define MAX_KEY_SIZE 1024 /* the size of the key map */
+
+static struct {
+	__u32 key_size;
+	__u32 map_flags;
+	__u32 max_entries;
+	__u32 nr_entries;
+	__u32 nr_loops;
+} args = {
+	.key_size = 4,
+	.map_flags = 0,
+	.max_entries = 1000,
+	.nr_entries = 500,
+	.nr_loops = 1000000,
+};
+
+enum {
+	ARG_KEY_SIZE = 8001,
+	ARG_MAP_FLAGS,
+	ARG_MAX_ENTRIES,
+	ARG_NR_ENTRIES,
+	ARG_NR_LOOPS,
+};
+
+static const struct argp_option opts[] = {
+	{ "key_size", ARG_KEY_SIZE, "KEY_SIZE", 0,
+	  "The hashmap key size (max 1024)"},
+	{ "map_flags", ARG_MAP_FLAGS, "MAP_FLAGS", 0,
+	  "The hashmap flags passed to BPF_MAP_CREATE"},
+	{ "max_entries", ARG_MAX_ENTRIES, "MAX_ENTRIES", 0,
+	  "The hashmap max entries"},
+	{ "nr_entries", ARG_NR_ENTRIES, "NR_ENTRIES", 0,
+	  "The number of entries to insert/lookup"},
+	{ "nr_loops", ARG_NR_LOOPS, "NR_LOOPS", 0,
+	  "The number of loops for the benchmark"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_KEY_SIZE:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > MAX_KEY_SIZE) {
+			fprintf(stderr, "invalid key_size");
+			argp_usage(state);
+		}
+		args.key_size = ret;
+		break;
+	case ARG_MAP_FLAGS:
+		ret = strtol(arg, NULL, 0);
+		if (ret < 0 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid map_flags");
+			argp_usage(state);
+		}
+		args.map_flags = ret;
+		break;
+	case ARG_MAX_ENTRIES:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid max_entries");
+			argp_usage(state);
+		}
+		args.max_entries = ret;
+		break;
+	case ARG_NR_ENTRIES:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid nr_entries");
+			argp_usage(state);
+		}
+		args.nr_entries = ret;
+		break;
+	case ARG_NR_LOOPS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > BPF_MAX_LOOPS) {
+			fprintf(stderr, "invalid nr_loops: %ld (min=1 max=%u)\n",
+				ret, BPF_MAX_LOOPS);
+			argp_usage(state);
+		}
+		args.nr_loops = ret;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_hashmap_lookup_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+
+	if (args.nr_entries > args.max_entries) {
+		fprintf(stderr, "args.nr_entries is too big! (max %u, got %u)\n",
+			args.max_entries, args.nr_entries);
+		exit(1);
+	}
+}
+
+static void *producer(void *input)
+{
+	while (true) {
+		/* trigger the bpf program */
+		syscall(__NR_getpgid);
+	}
+	return NULL;
+}
+
+static void measure(struct bench_res *res)
+{
+}
+
+static inline void patch_key(u32 i, u32 *key)
+{
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	*key = i + 1;
+#else
+	*key = __builtin_bswap32(i + 1);
+#endif
+	/* the rest of key is random */
+}
+
+static void setup(void)
+{
+	struct bpf_link *link;
+	int map_fd;
+	int ret;
+	int i;
+
+	setup_libbpf();
+
+	ctx.skel = bpf_hashmap_lookup__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	bpf_map__set_max_entries(ctx.skel->maps.hash_map_bench, args.max_entries);
+	bpf_map__set_key_size(ctx.skel->maps.hash_map_bench, args.key_size);
+	bpf_map__set_value_size(ctx.skel->maps.hash_map_bench, 8);
+	bpf_map__set_map_flags(ctx.skel->maps.hash_map_bench, args.map_flags);
+
+	ctx.skel->bss->nr_entries = args.nr_entries;
+	ctx.skel->bss->nr_loops = args.nr_loops / args.nr_entries;
+
+	if (args.key_size > 4) {
+		for (i = 1; i < args.key_size/4; i++)
+			ctx.skel->bss->key[i] = 2654435761 * i;
+	}
+
+	ret = bpf_hashmap_lookup__load(ctx.skel);
+	if (ret) {
+		bpf_hashmap_lookup__destroy(ctx.skel);
+		fprintf(stderr, "failed to load map: %s", strerror(-ret));
+		exit(1);
+	}
+
+	/* fill in the hash_map */
+	map_fd = bpf_map__fd(ctx.skel->maps.hash_map_bench);
+	for (u64 i = 0; i < args.nr_entries; i++) {
+		patch_key(i, ctx.skel->bss->key);
+		bpf_map_update_elem(map_fd, ctx.skel->bss->key, &i, BPF_ANY);
+	}
+
+	link = bpf_program__attach(ctx.skel->progs.benchmark);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static inline double events_from_time(u64 time)
+{
+	if (time)
+		return args.nr_loops * 1000000000llu / time / 1000000.0L;
+
+	return 0;
+}
+
+static int compute_events(u64 *times, double *events_mean, double *events_stddev, u64 *mean_time)
+{
+	int i, n = 0;
+
+	*events_mean = 0;
+	*events_stddev = 0;
+	*mean_time = 0;
+
+	for (i = 0; i < 32; i++) {
+		if (!times[i])
+			break;
+		*mean_time += times[i];
+		*events_mean += events_from_time(times[i]);
+		n += 1;
+	}
+	if (!n)
+		return 0;
+
+	*mean_time /= n;
+	*events_mean /= n;
+
+	if (n > 1) {
+		for (i = 0; i < n; i++) {
+			double events_i = *events_mean - events_from_time(times[i]);
+			*events_stddev += events_i * events_i / (n - 1);
+		}
+		*events_stddev = sqrt(*events_stddev);
+	}
+
+	return n;
+}
+
+static void hashmap_report_final(struct bench_res res[], int res_cnt)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	double events_mean, events_stddev;
+	u64 mean_time;
+	int i, n;
+
+	for (i = 0; i < nr_cpus; i++) {
+		n = compute_events(ctx.skel->bss->percpu_times[i], &events_mean,
+				   &events_stddev, &mean_time);
+		if (n == 0)
+			continue;
+
+		if (env.quiet) {
+			/* we expect only one cpu to be present */
+			if (env.affinity)
+				printf("%.3lf\n", events_mean);
+			else
+				printf("cpu%02d %.3lf\n", i, events_mean);
+		} else {
+			printf("cpu%02d: lookup %.3lfM ± %.3lfM events/sec"
+			       " (approximated from %d samples of ~%lums)\n",
+			       i, events_mean, 2*events_stddev,
+			       n, mean_time / 1000000);
+		}
+	}
+}
+
+const struct bench bench_bpf_hashmap_lookup = {
+	.name = "bpf-hashmap-lookup",
+	.argp = &bench_hashmap_lookup_argp,
+	.validate = validate,
+	.setup = setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = NULL,
+	.report_final = hashmap_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c b/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c
new file mode 100644
index 000000000000..a705cfb2bccc
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bpf_loop.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <argp.h>
+#include "bench.h"
+#include "bpf_loop_bench.skel.h"
+
+/* BPF triggering benchmarks */
+static struct ctx {
+	struct bpf_loop_bench *skel;
+} ctx;
+
+static struct {
+	__u32 nr_loops;
+} args = {
+	.nr_loops = 10,
+};
+
+enum {
+	ARG_NR_LOOPS = 4000,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_loops", ARG_NR_LOOPS, "nr_loops", 0,
+		"Set number of loops for the bpf_loop helper"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_NR_LOOPS:
+		args.nr_loops = strtol(arg, NULL, 10);
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+/* exported into benchmark runner */
+const struct argp bench_bpf_loop_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		/* trigger the bpf program */
+		syscall(__NR_getpgid);
+
+	return NULL;
+}
+
+static void measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->hits, 0);
+}
+
+static void setup(void)
+{
+	struct bpf_link *link;
+
+	setup_libbpf();
+
+	ctx.skel = bpf_loop_bench__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	link = bpf_program__attach(ctx.skel->progs.benchmark);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+
+	ctx.skel->bss->nr_loops = args.nr_loops;
+}
+
+const struct bench bench_bpf_loop = {
+	.name = "bpf-loop",
+	.argp = &bench_bpf_loop_argp,
+	.validate = validate,
+	.setup = setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = ops_report_progress,
+	.report_final = ops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_count.c b/tools/testing/selftests/bpf/benchs/bench_count.c
new file mode 100644
index 000000000000..ba89ed3936b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_count.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include "bench.h"
+
+/* COUNT-GLOBAL benchmark */
+
+static struct count_global_ctx {
+	struct counter hits;
+} count_global_ctx;
+
+static void *count_global_producer(void *input)
+{
+	struct count_global_ctx *ctx = &count_global_ctx;
+
+	while (true) {
+		atomic_inc(&ctx->hits.value);
+	}
+	return NULL;
+}
+
+static void count_global_measure(struct bench_res *res)
+{
+	struct count_global_ctx *ctx = &count_global_ctx;
+
+	res->hits = atomic_swap(&ctx->hits.value, 0);
+}
+
+/* COUNT-local benchmark */
+
+static struct count_local_ctx {
+	struct counter *hits;
+} count_local_ctx;
+
+static void count_local_setup(void)
+{
+	struct count_local_ctx *ctx = &count_local_ctx;
+
+	ctx->hits = calloc(env.producer_cnt, sizeof(*ctx->hits));
+	if (!ctx->hits)
+		exit(1);
+}
+
+static void *count_local_producer(void *input)
+{
+	struct count_local_ctx *ctx = &count_local_ctx;
+	int idx = (long)input;
+
+	while (true) {
+		atomic_inc(&ctx->hits[idx].value);
+	}
+	return NULL;
+}
+
+static void count_local_measure(struct bench_res *res)
+{
+	struct count_local_ctx *ctx = &count_local_ctx;
+	int i;
+
+	for (i = 0; i < env.producer_cnt; i++) {
+		res->hits += atomic_swap(&ctx->hits[i].value, 0);
+	}
+}
+
+const struct bench bench_count_global = {
+	.name = "count-global",
+	.producer_thread = count_global_producer,
+	.measure = count_global_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_count_local = {
+	.name = "count-local",
+	.setup = count_local_setup,
+	.producer_thread = count_local_producer,
+	.measure = count_local_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_htab_mem.c b/tools/testing/selftests/bpf/benchs/bench_htab_mem.c
new file mode 100644
index 000000000000..297e32390cd1
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_htab_mem.c
@@ -0,0 +1,350 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <argp.h>
+#include <stdbool.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <fcntl.h>
+
+#include "bench.h"
+#include "bpf_util.h"
+#include "cgroup_helpers.h"
+#include "htab_mem_bench.skel.h"
+
+struct htab_mem_use_case {
+	const char *name;
+	const char **progs;
+	/* Do synchronization between addition thread and deletion thread */
+	bool need_sync;
+};
+
+static struct htab_mem_ctx {
+	const struct htab_mem_use_case *uc;
+	struct htab_mem_bench *skel;
+	pthread_barrier_t *notify;
+	int fd;
+} ctx;
+
+const char *ow_progs[] = {"overwrite", NULL};
+const char *batch_progs[] = {"batch_add_batch_del", NULL};
+const char *add_del_progs[] = {"add_only", "del_only", NULL};
+const static struct htab_mem_use_case use_cases[] = {
+	{ .name = "overwrite", .progs = ow_progs },
+	{ .name = "batch_add_batch_del", .progs = batch_progs },
+	{ .name = "add_del_on_diff_cpu", .progs = add_del_progs, .need_sync = true },
+};
+
+static struct htab_mem_args {
+	u32 value_size;
+	const char *use_case;
+	bool preallocated;
+} args = {
+	.value_size = 8,
+	.use_case = "overwrite",
+	.preallocated = false,
+};
+
+enum {
+	ARG_VALUE_SIZE = 10000,
+	ARG_USE_CASE = 10001,
+	ARG_PREALLOCATED = 10002,
+};
+
+static const struct argp_option opts[] = {
+	{ "value-size", ARG_VALUE_SIZE, "VALUE_SIZE", 0,
+	  "Set the value size of hash map (default 8)" },
+	{ "use-case", ARG_USE_CASE, "USE_CASE", 0,
+	  "Set the use case of hash map: overwrite|batch_add_batch_del|add_del_on_diff_cpu" },
+	{ "preallocated", ARG_PREALLOCATED, NULL, 0, "use preallocated hash map" },
+	{},
+};
+
+static error_t htab_mem_parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_VALUE_SIZE:
+		args.value_size = strtoul(arg, NULL, 10);
+		if (args.value_size > 4096) {
+			fprintf(stderr, "too big value size %u\n", args.value_size);
+			argp_usage(state);
+		}
+		break;
+	case ARG_USE_CASE:
+		args.use_case = strdup(arg);
+		if (!args.use_case) {
+			fprintf(stderr, "no mem for use-case\n");
+			argp_usage(state);
+		}
+		break;
+	case ARG_PREALLOCATED:
+		args.preallocated = true;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_htab_mem_argp = {
+	.options = opts,
+	.parser = htab_mem_parse_arg,
+};
+
+static void htab_mem_validate(void)
+{
+	if (!strcmp(use_cases[2].name, args.use_case) && env.producer_cnt % 2) {
+		fprintf(stderr, "%s needs an even number of producers\n", args.use_case);
+		exit(1);
+	}
+}
+
+static int htab_mem_bench_init_barriers(void)
+{
+	pthread_barrier_t *barriers;
+	unsigned int i, nr;
+
+	if (!ctx.uc->need_sync)
+		return 0;
+
+	nr = (env.producer_cnt + 1) / 2;
+	barriers = calloc(nr, sizeof(*barriers));
+	if (!barriers)
+		return -1;
+
+	/* Used for synchronization between two threads */
+	for (i = 0; i < nr; i++)
+		pthread_barrier_init(&barriers[i], NULL, 2);
+
+	ctx.notify = barriers;
+	return 0;
+}
+
+static void htab_mem_bench_exit_barriers(void)
+{
+	unsigned int i, nr;
+
+	if (!ctx.notify)
+		return;
+
+	nr = (env.producer_cnt + 1) / 2;
+	for (i = 0; i < nr; i++)
+		pthread_barrier_destroy(&ctx.notify[i]);
+	free(ctx.notify);
+}
+
+static const struct htab_mem_use_case *htab_mem_find_use_case_or_exit(const char *name)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(use_cases); i++) {
+		if (!strcmp(name, use_cases[i].name))
+			return &use_cases[i];
+	}
+
+	fprintf(stderr, "no such use-case: %s\n", name);
+	fprintf(stderr, "available use case:");
+	for (i = 0; i < ARRAY_SIZE(use_cases); i++)
+		fprintf(stderr, " %s", use_cases[i].name);
+	fprintf(stderr, "\n");
+	exit(1);
+}
+
+static void htab_mem_setup(void)
+{
+	struct bpf_map *map;
+	const char **names;
+	int err;
+
+	setup_libbpf();
+
+	ctx.uc = htab_mem_find_use_case_or_exit(args.use_case);
+	err = htab_mem_bench_init_barriers();
+	if (err) {
+		fprintf(stderr, "failed to init barrier\n");
+		exit(1);
+	}
+
+	ctx.fd = cgroup_setup_and_join("/htab_mem");
+	if (ctx.fd < 0)
+		goto cleanup;
+
+	ctx.skel = htab_mem_bench__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		goto cleanup;
+	}
+
+	map = ctx.skel->maps.htab;
+	bpf_map__set_value_size(map, args.value_size);
+	/* Ensure that different CPUs can operate on different subset */
+	bpf_map__set_max_entries(map, MAX(8192, 64 * env.nr_cpus));
+	if (args.preallocated)
+		bpf_map__set_map_flags(map, bpf_map__map_flags(map) & ~BPF_F_NO_PREALLOC);
+
+	names = ctx.uc->progs;
+	while (*names) {
+		struct bpf_program *prog;
+
+		prog = bpf_object__find_program_by_name(ctx.skel->obj, *names);
+		if (!prog) {
+			fprintf(stderr, "no such program %s\n", *names);
+			goto cleanup;
+		}
+		bpf_program__set_autoload(prog, true);
+		names++;
+	}
+	ctx.skel->bss->nr_thread = env.producer_cnt;
+
+	err = htab_mem_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to load skeleton\n");
+		goto cleanup;
+	}
+	err = htab_mem_bench__attach(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to attach skeleton\n");
+		goto cleanup;
+	}
+	return;
+
+cleanup:
+	htab_mem_bench__destroy(ctx.skel);
+	htab_mem_bench_exit_barriers();
+	if (ctx.fd >= 0) {
+		close(ctx.fd);
+		cleanup_cgroup_environment();
+	}
+	exit(1);
+}
+
+static void htab_mem_add_fn(pthread_barrier_t *notify)
+{
+	while (true) {
+		/* Do addition */
+		(void)syscall(__NR_getpgid, 0);
+		/* Notify deletion thread to do deletion */
+		pthread_barrier_wait(notify);
+		/* Wait for deletion to complete */
+		pthread_barrier_wait(notify);
+	}
+}
+
+static void htab_mem_delete_fn(pthread_barrier_t *notify)
+{
+	while (true) {
+		/* Wait for addition to complete */
+		pthread_barrier_wait(notify);
+		/* Do deletion */
+		(void)syscall(__NR_getppid);
+		/* Notify addition thread to do addition */
+		pthread_barrier_wait(notify);
+	}
+}
+
+static void *htab_mem_producer(void *arg)
+{
+	pthread_barrier_t *notify;
+	int seq;
+
+	if (!ctx.uc->need_sync) {
+		while (true)
+			(void)syscall(__NR_getpgid, 0);
+		return NULL;
+	}
+
+	seq = (long)arg;
+	notify = &ctx.notify[seq / 2];
+	if (seq & 1)
+		htab_mem_delete_fn(notify);
+	else
+		htab_mem_add_fn(notify);
+	return NULL;
+}
+
+static void htab_mem_read_mem_cgrp_file(const char *name, unsigned long *value)
+{
+	char buf[32];
+	ssize_t got;
+	int fd;
+
+	fd = openat(ctx.fd, name, O_RDONLY);
+	if (fd < 0) {
+		/* cgroup v1 ? */
+		fprintf(stderr, "no %s\n", name);
+		*value = 0;
+		return;
+	}
+
+	got = read(fd, buf, sizeof(buf) - 1);
+	close(fd);
+	if (got <= 0) {
+		*value = 0;
+		return;
+	}
+	buf[got] = 0;
+
+	*value = strtoull(buf, NULL, 0);
+}
+
+static void htab_mem_measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->op_cnt, 0) / env.producer_cnt;
+	htab_mem_read_mem_cgrp_file("memory.current", &res->gp_ct);
+}
+
+static void htab_mem_report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	double loop, mem;
+
+	loop = res->hits / 1000.0 / (delta_ns / 1000000000.0);
+	mem = res->gp_ct / 1048576.0;
+	printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0);
+	printf("per-prod-op %7.2lfk/s, memory usage %7.2lfMiB\n", loop, mem);
+}
+
+static void htab_mem_report_final(struct bench_res res[], int res_cnt)
+{
+	double mem_mean = 0.0, mem_stddev = 0.0;
+	double loop_mean = 0.0, loop_stddev = 0.0;
+	unsigned long peak_mem;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		loop_mean += res[i].hits / 1000.0 / (0.0 + res_cnt);
+		mem_mean += res[i].gp_ct / 1048576.0 / (0.0 + res_cnt);
+	}
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++) {
+			loop_stddev += (loop_mean - res[i].hits / 1000.0) *
+				       (loop_mean - res[i].hits / 1000.0) /
+				       (res_cnt - 1.0);
+			mem_stddev += (mem_mean - res[i].gp_ct / 1048576.0) *
+				      (mem_mean - res[i].gp_ct / 1048576.0) /
+				      (res_cnt - 1.0);
+		}
+		loop_stddev = sqrt(loop_stddev);
+		mem_stddev = sqrt(mem_stddev);
+	}
+
+	htab_mem_read_mem_cgrp_file("memory.peak", &peak_mem);
+	printf("Summary: per-prod-op %7.2lf \u00B1 %7.2lfk/s, memory usage %7.2lf \u00B1 %7.2lfMiB,"
+	       " peak memory usage %7.2lfMiB\n",
+	       loop_mean, loop_stddev, mem_mean, mem_stddev, peak_mem / 1048576.0);
+
+	close(ctx.fd);
+	cleanup_cgroup_environment();
+}
+
+const struct bench bench_htab_mem = {
+	.name = "htab-mem",
+	.argp = &bench_htab_mem_argp,
+	.validate = htab_mem_validate,
+	.setup = htab_mem_setup,
+	.producer_thread = htab_mem_producer,
+	.measure = htab_mem_measure,
+	.report_progress = htab_mem_report_progress,
+	.report_final = htab_mem_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage.c b/tools/testing/selftests/bpf/benchs/bench_local_storage.c
new file mode 100644
index 000000000000..452499428ceb
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_local_storage.c
@@ -0,0 +1,282 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <argp.h>
+#include <linux/btf.h>
+
+#include "local_storage_bench.skel.h"
+#include "bench.h"
+
+#include <test_btf.h>
+
+static struct {
+	__u32 nr_maps;
+	__u32 hashmap_nr_keys_used;
+} args = {
+	.nr_maps = 1000,
+	.hashmap_nr_keys_used = 1000,
+};
+
+enum {
+	ARG_NR_MAPS = 6000,
+	ARG_HASHMAP_NR_KEYS_USED = 6001,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_maps", ARG_NR_MAPS, "NR_MAPS", 0,
+		"Set number of local_storage maps"},
+	{ "hashmap_nr_keys_used", ARG_HASHMAP_NR_KEYS_USED, "NR_KEYS",
+		0, "When doing hashmap test, set number of hashmap keys test uses"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_MAPS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid nr_maps");
+			argp_usage(state);
+		}
+		args.nr_maps = ret;
+		break;
+	case ARG_HASHMAP_NR_KEYS_USED:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid hashmap_nr_keys_used");
+			argp_usage(state);
+		}
+		args.hashmap_nr_keys_used = ret;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_local_storage_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+/* Keep in sync w/ array of maps in bpf */
+#define MAX_NR_MAPS 1000
+/* keep in sync w/ same define in bpf */
+#define HASHMAP_SZ 4194304
+
+static void validate(void)
+{
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-producer!\n");
+		exit(1);
+	}
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+
+	if (args.nr_maps > MAX_NR_MAPS) {
+		fprintf(stderr, "nr_maps must be <= 1000\n");
+		exit(1);
+	}
+
+	if (args.hashmap_nr_keys_used > HASHMAP_SZ) {
+		fprintf(stderr, "hashmap_nr_keys_used must be <= %u\n", HASHMAP_SZ);
+		exit(1);
+	}
+}
+
+static struct {
+	struct local_storage_bench *skel;
+	void *bpf_obj;
+	struct bpf_map *array_of_maps;
+} ctx;
+
+static void prepopulate_hashmap(int fd)
+{
+	int i, key, val;
+
+	/* local_storage gets will have BPF_LOCAL_STORAGE_GET_F_CREATE flag set, so
+	 * populate the hashmap for a similar comparison
+	 */
+	for (i = 0; i < HASHMAP_SZ; i++) {
+		key = val = i;
+		if (bpf_map_update_elem(fd, &key, &val, 0)) {
+			fprintf(stderr, "Error prepopulating hashmap (key %d)\n", key);
+			exit(1);
+		}
+	}
+}
+
+static void __setup(struct bpf_program *prog, bool hashmap)
+{
+	struct bpf_map *inner_map;
+	int i, fd, mim_fd, err;
+
+	LIBBPF_OPTS(bpf_map_create_opts, create_opts);
+
+	if (!hashmap)
+		create_opts.map_flags = BPF_F_NO_PREALLOC;
+
+	ctx.skel->rodata->num_maps = args.nr_maps;
+	ctx.skel->rodata->hashmap_num_keys = args.hashmap_nr_keys_used;
+	inner_map = bpf_map__inner_map(ctx.array_of_maps);
+	create_opts.btf_key_type_id = bpf_map__btf_key_type_id(inner_map);
+	create_opts.btf_value_type_id = bpf_map__btf_value_type_id(inner_map);
+
+	err = local_storage_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "Error loading skeleton\n");
+		goto err_out;
+	}
+
+	create_opts.btf_fd = bpf_object__btf_fd(ctx.skel->obj);
+
+	mim_fd = bpf_map__fd(ctx.array_of_maps);
+	if (mim_fd < 0) {
+		fprintf(stderr, "Error getting map_in_map fd\n");
+		goto err_out;
+	}
+
+	for (i = 0; i < args.nr_maps; i++) {
+		if (hashmap)
+			fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(int),
+					    sizeof(int), HASHMAP_SZ, &create_opts);
+		else
+			fd = bpf_map_create(BPF_MAP_TYPE_TASK_STORAGE, NULL, sizeof(int),
+					    sizeof(int), 0, &create_opts);
+		if (fd < 0) {
+			fprintf(stderr, "Error creating map %d: %d\n", i, fd);
+			goto err_out;
+		}
+
+		if (hashmap)
+			prepopulate_hashmap(fd);
+
+		err = bpf_map_update_elem(mim_fd, &i, &fd, 0);
+		if (err) {
+			fprintf(stderr, "Error updating array-of-maps w/ map %d\n", i);
+			goto err_out;
+		}
+	}
+
+	if (!bpf_program__attach(prog)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	return;
+err_out:
+	exit(1);
+}
+
+static void hashmap_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_hash_maps;
+	skel->rodata->use_hashmap = 1;
+	skel->rodata->interleave = 0;
+
+	__setup(skel->progs.get_local, true);
+}
+
+static void local_storage_cache_get_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_local_storage_maps;
+	skel->rodata->use_hashmap = 0;
+	skel->rodata->interleave = 0;
+
+	__setup(skel->progs.get_local, false);
+}
+
+static void local_storage_cache_get_interleaved_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_local_storage_maps;
+	skel->rodata->use_hashmap = 0;
+	skel->rodata->interleave = 1;
+
+	__setup(skel->progs.get_local, false);
+}
+
+static void measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->hits, 0);
+	res->important_hits = atomic_swap(&ctx.skel->bss->important_hits, 0);
+}
+
+static inline void trigger_bpf_program(void)
+{
+	syscall(__NR_getpgid);
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		trigger_bpf_program();
+
+	return NULL;
+}
+
+/* cache sequential and interleaved get benchs test local_storage get
+ * performance, specifically they demonstrate performance cliff of
+ * current list-plus-cache local_storage model.
+ *
+ * cache sequential get: call bpf_task_storage_get on n maps in order
+ * cache interleaved get: like "sequential get", but interleave 4 calls to the
+ *	'important' map (idx 0 in array_of_maps) for every 10 calls. Goal
+ *	is to mimic environment where many progs are accessing their local_storage
+ *	maps, with 'our' prog needing to access its map more often than others
+ */
+const struct bench bench_local_storage_cache_seq_get = {
+	.name = "local-storage-cache-seq-get",
+	.argp = &bench_local_storage_argp,
+	.validate = validate,
+	.setup = local_storage_cache_get_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
+
+const struct bench bench_local_storage_cache_interleaved_get = {
+	.name = "local-storage-cache-int-get",
+	.argp = &bench_local_storage_argp,
+	.validate = validate,
+	.setup = local_storage_cache_get_interleaved_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
+
+const struct bench bench_local_storage_cache_hashmap_control = {
+	.name = "local-storage-cache-hashmap-control",
+	.argp = &bench_local_storage_argp,
+	.validate = validate,
+	.setup = hashmap_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c
new file mode 100644
index 000000000000..e2ff8ea1cb79
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_local_storage_create.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <pthread.h>
+#include <argp.h>
+
+#include "bench.h"
+#include "bench_local_storage_create.skel.h"
+
+struct thread {
+	int *fds;
+	pthread_t *pthds;
+	int *pthd_results;
+};
+
+static struct bench_local_storage_create *skel;
+static struct thread *threads;
+static long create_owner_errs;
+static int storage_type = BPF_MAP_TYPE_SK_STORAGE;
+static int batch_sz = 32;
+
+enum {
+	ARG_BATCH_SZ = 9000,
+	ARG_STORAGE_TYPE = 9001,
+};
+
+static const struct argp_option opts[] = {
+	{ "batch-size", ARG_BATCH_SZ, "BATCH_SIZE", 0,
+	  "The number of storage creations in each batch" },
+	{ "storage-type", ARG_STORAGE_TYPE, "STORAGE_TYPE", 0,
+	  "The type of local storage to test (socket or task)" },
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	int ret;
+
+	switch (key) {
+	case ARG_BATCH_SZ:
+		ret = atoi(arg);
+		if (ret < 1) {
+			fprintf(stderr, "invalid batch-size\n");
+			argp_usage(state);
+		}
+		batch_sz = ret;
+		break;
+	case ARG_STORAGE_TYPE:
+		if (!strcmp(arg, "task")) {
+			storage_type = BPF_MAP_TYPE_TASK_STORAGE;
+		} else if (!strcmp(arg, "socket")) {
+			storage_type = BPF_MAP_TYPE_SK_STORAGE;
+		} else {
+			fprintf(stderr, "invalid storage-type (socket or task)\n");
+			argp_usage(state);
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_local_storage_create_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr,
+			"local-storage-create benchmark does not need consumer\n");
+		exit(1);
+	}
+}
+
+static void setup(void)
+{
+	int i;
+
+	skel = bench_local_storage_create__open_and_load();
+	if (!skel) {
+		fprintf(stderr, "error loading skel\n");
+		exit(1);
+	}
+
+	skel->bss->bench_pid = getpid();
+	if (storage_type == BPF_MAP_TYPE_SK_STORAGE) {
+		if (!bpf_program__attach(skel->progs.socket_post_create)) {
+			fprintf(stderr, "Error attaching bpf program\n");
+			exit(1);
+		}
+	} else {
+		if (!bpf_program__attach(skel->progs.sched_process_fork)) {
+			fprintf(stderr, "Error attaching bpf program\n");
+			exit(1);
+		}
+	}
+
+	if (!bpf_program__attach(skel->progs.kmalloc)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		exit(1);
+	}
+
+	threads = calloc(env.producer_cnt, sizeof(*threads));
+
+	if (!threads) {
+		fprintf(stderr, "cannot alloc thread_res\n");
+		exit(1);
+	}
+
+	for (i = 0; i < env.producer_cnt; i++) {
+		struct thread *t = &threads[i];
+
+		if (storage_type == BPF_MAP_TYPE_SK_STORAGE) {
+			t->fds = malloc(batch_sz * sizeof(*t->fds));
+			if (!t->fds) {
+				fprintf(stderr, "cannot alloc t->fds\n");
+				exit(1);
+			}
+		} else {
+			t->pthds = malloc(batch_sz * sizeof(*t->pthds));
+			if (!t->pthds) {
+				fprintf(stderr, "cannot alloc t->pthds\n");
+				exit(1);
+			}
+			t->pthd_results = malloc(batch_sz * sizeof(*t->pthd_results));
+			if (!t->pthd_results) {
+				fprintf(stderr, "cannot alloc t->pthd_results\n");
+				exit(1);
+			}
+		}
+	}
+}
+
+static void measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&skel->bss->create_cnts, 0);
+	res->drops = atomic_swap(&skel->bss->kmalloc_cnts, 0);
+}
+
+static void *sk_producer(void *input)
+{
+	struct thread *t = &threads[(long)(input)];
+	int *fds = t->fds;
+	int i;
+
+	while (true) {
+		for (i = 0; i < batch_sz; i++) {
+			fds[i] = socket(AF_INET6, SOCK_DGRAM, 0);
+			if (fds[i] == -1)
+				atomic_inc(&create_owner_errs);
+		}
+
+		for (i = 0; i < batch_sz; i++) {
+			if (fds[i] != -1)
+				close(fds[i]);
+		}
+	}
+
+	return NULL;
+}
+
+static void *thread_func(void *arg)
+{
+	return NULL;
+}
+
+static void *task_producer(void *input)
+{
+	struct thread *t = &threads[(long)(input)];
+	pthread_t *pthds = t->pthds;
+	int *pthd_results = t->pthd_results;
+	int i;
+
+	while (true) {
+		for (i = 0; i < batch_sz; i++) {
+			pthd_results[i] = pthread_create(&pthds[i], NULL, thread_func, NULL);
+			if (pthd_results[i])
+				atomic_inc(&create_owner_errs);
+		}
+
+		for (i = 0; i < batch_sz; i++) {
+			if (!pthd_results[i])
+				pthread_join(pthds[i], NULL);
+		}
+	}
+
+	return NULL;
+}
+
+static void *producer(void *input)
+{
+	if (storage_type == BPF_MAP_TYPE_SK_STORAGE)
+		return sk_producer(input);
+	else
+		return task_producer(input);
+}
+
+static void report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	double creates_per_sec, kmallocs_per_create;
+
+	creates_per_sec = res->hits / 1000.0 / (delta_ns / 1000000000.0);
+	kmallocs_per_create = (double)res->drops / res->hits;
+
+	printf("Iter %3d (%7.3lfus): ",
+	       iter, (delta_ns - 1000000000) / 1000.0);
+	printf("creates %8.3lfk/s (%7.3lfk/prod), ",
+	       creates_per_sec, creates_per_sec / env.producer_cnt);
+	printf("%3.2lf kmallocs/create\n", kmallocs_per_create);
+}
+
+static void report_final(struct bench_res res[], int res_cnt)
+{
+	double creates_mean = 0.0, creates_stddev = 0.0;
+	long total_creates = 0, total_kmallocs = 0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		creates_mean += res[i].hits / 1000.0 / (0.0 + res_cnt);
+		total_creates += res[i].hits;
+		total_kmallocs += res[i].drops;
+	}
+
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++)
+			creates_stddev += (creates_mean - res[i].hits / 1000.0) *
+				       (creates_mean - res[i].hits / 1000.0) /
+				       (res_cnt - 1.0);
+		creates_stddev = sqrt(creates_stddev);
+	}
+	printf("Summary: creates %8.3lf \u00B1 %5.3lfk/s (%7.3lfk/prod), ",
+	       creates_mean, creates_stddev, creates_mean / env.producer_cnt);
+	printf("%4.2lf kmallocs/create\n", (double)total_kmallocs / total_creates);
+	if (create_owner_errs || skel->bss->create_errs)
+		printf("%s() errors %ld create_errs %ld\n",
+		       storage_type == BPF_MAP_TYPE_SK_STORAGE ?
+		       "socket" : "pthread_create",
+		       create_owner_errs,
+		       skel->bss->create_errs);
+}
+
+/* Benchmark performance of creating bpf local storage  */
+const struct bench bench_local_storage_create = {
+	.name = "local-storage-create",
+	.argp = &bench_local_storage_create_argp,
+	.validate = validate,
+	.setup = setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = report_progress,
+	.report_final = report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c b/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c
new file mode 100644
index 000000000000..edf0b00418c1
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <argp.h>
+
+#include <sys/prctl.h>
+#include "local_storage_rcu_tasks_trace_bench.skel.h"
+#include "bench.h"
+
+#include <signal.h>
+
+static struct {
+	__u32 nr_procs;
+	__u32 kthread_pid;
+} args = {
+	.nr_procs = 1000,
+	.kthread_pid = 0,
+};
+
+enum {
+	ARG_NR_PROCS = 7000,
+	ARG_KTHREAD_PID = 7001,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_procs", ARG_NR_PROCS, "NR_PROCS", 0,
+		"Set number of user processes to spin up"},
+	{ "kthread_pid", ARG_KTHREAD_PID, "PID", 0,
+		"Pid of rcu_tasks_trace kthread for ticks tracking"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_PROCS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid nr_procs\n");
+			argp_usage(state);
+		}
+		args.nr_procs = ret;
+		break;
+	case ARG_KTHREAD_PID:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1) {
+			fprintf(stderr, "invalid kthread_pid\n");
+			argp_usage(state);
+		}
+		args.kthread_pid = ret;
+		break;
+break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_local_storage_rcu_tasks_trace_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+#define MAX_SLEEP_PROCS 150000
+
+static void validate(void)
+{
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-producer!\n");
+		exit(1);
+	}
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+
+	if (args.nr_procs > MAX_SLEEP_PROCS) {
+		fprintf(stderr, "benchmark supports up to %u sleeper procs!\n",
+			MAX_SLEEP_PROCS);
+		exit(1);
+	}
+}
+
+static long kthread_pid_ticks(void)
+{
+	char procfs_path[100];
+	long stime;
+	FILE *f;
+
+	if (!args.kthread_pid)
+		return -1;
+
+	sprintf(procfs_path, "/proc/%u/stat", args.kthread_pid);
+	f = fopen(procfs_path, "r");
+	if (!f) {
+		fprintf(stderr, "couldn't open %s, exiting\n", procfs_path);
+		goto err_out;
+	}
+	if (fscanf(f, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %ld", &stime) != 1) {
+		fprintf(stderr, "fscanf of %s failed, exiting\n", procfs_path);
+		goto err_out;
+	}
+	fclose(f);
+	return stime;
+
+err_out:
+	if (f)
+		fclose(f);
+	exit(1);
+	return 0;
+}
+
+static struct {
+	struct local_storage_rcu_tasks_trace_bench *skel;
+	long prev_kthread_stime;
+} ctx;
+
+static void sleep_and_loop(void)
+{
+	while (true) {
+		sleep(rand() % 4);
+		syscall(__NR_getpgid);
+	}
+}
+
+static void local_storage_tasks_trace_setup(void)
+{
+	int i, err, forkret, runner_pid;
+
+	runner_pid = getpid();
+
+	for (i = 0; i < args.nr_procs; i++) {
+		forkret = fork();
+		if (forkret < 0) {
+			fprintf(stderr, "Error forking sleeper proc %u of %u, exiting\n", i,
+				args.nr_procs);
+			goto err_out;
+		}
+
+		if (!forkret) {
+			err = prctl(PR_SET_PDEATHSIG, SIGKILL);
+			if (err < 0) {
+				fprintf(stderr, "prctl failed with err %d, exiting\n", errno);
+				goto err_out;
+			}
+
+			if (getppid() != runner_pid) {
+				fprintf(stderr, "Runner died while spinning up procs, exiting\n");
+				goto err_out;
+			}
+			sleep_and_loop();
+		}
+	}
+	printf("Spun up %u procs (our pid %d)\n", args.nr_procs, runner_pid);
+
+	setup_libbpf();
+
+	ctx.skel = local_storage_rcu_tasks_trace_bench__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "Error doing open_and_load, exiting\n");
+		goto err_out;
+	}
+
+	ctx.prev_kthread_stime = kthread_pid_ticks();
+
+	if (!bpf_program__attach(ctx.skel->progs.get_local)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	if (!bpf_program__attach(ctx.skel->progs.pregp_step)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	if (!bpf_program__attach(ctx.skel->progs.postgp)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	return;
+err_out:
+	exit(1);
+}
+
+static void measure(struct bench_res *res)
+{
+	long ticks;
+
+	res->gp_ct = atomic_swap(&ctx.skel->bss->gp_hits, 0);
+	res->gp_ns = atomic_swap(&ctx.skel->bss->gp_times, 0);
+	ticks = kthread_pid_ticks();
+	res->stime = ticks - ctx.prev_kthread_stime;
+	ctx.prev_kthread_stime = ticks;
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		syscall(__NR_getpgid);
+	return NULL;
+}
+
+static void report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	if (ctx.skel->bss->unexpected) {
+		fprintf(stderr, "Error: Unexpected order of bpf prog calls (postgp after pregp).");
+		fprintf(stderr, "Data can't be trusted, exiting\n");
+		exit(1);
+	}
+
+	if (env.quiet)
+		return;
+
+	printf("Iter %d\t avg tasks_trace grace period latency\t%lf ns\n",
+	       iter, res->gp_ns / (double)res->gp_ct);
+	printf("Iter %d\t avg ticks per tasks_trace grace period\t%lf\n",
+	       iter, res->stime / (double)res->gp_ct);
+}
+
+static void report_final(struct bench_res res[], int res_cnt)
+{
+	struct basic_stats gp_stat;
+
+	grace_period_latency_basic_stats(res, res_cnt, &gp_stat);
+	printf("SUMMARY tasks_trace grace period latency");
+	printf("\tavg %.3lf us\tstddev %.3lf us\n", gp_stat.mean, gp_stat.stddev);
+	grace_period_ticks_basic_stats(res, res_cnt, &gp_stat);
+	printf("SUMMARY ticks per tasks_trace grace period");
+	printf("\tavg %.3lf\tstddev %.3lf\n", gp_stat.mean, gp_stat.stddev);
+}
+
+/* local-storage-tasks-trace: Benchmark performance of BPF local_storage's use
+ * of RCU Tasks-Trace.
+ *
+ * Stress RCU Tasks Trace by forking many tasks, all of which do no work aside
+ * from sleep() loop, and creating/destroying BPF task-local storage on wakeup.
+ * The number of forked tasks is configurable.
+ *
+ * exercising code paths which call call_rcu_tasks_trace while there are many
+ * thousands of tasks on the system should result in RCU Tasks-Trace having to
+ * do a noticeable amount of work.
+ *
+ * This should be observable by measuring rcu_tasks_trace_kthread CPU usage
+ * after the grace period has ended, or by measuring grace period latency.
+ *
+ * This benchmark uses both approaches, attaching to rcu_tasks_trace_pregp_step
+ * and rcu_tasks_trace_postgp functions to measure grace period latency and
+ * using /proc/PID/stat to measure rcu_tasks_trace_kthread kernel ticks
+ */
+const struct bench bench_local_storage_tasks_trace = {
+	.name = "local-storage-tasks-trace",
+	.argp = &bench_local_storage_rcu_tasks_trace_argp,
+	.validate = validate,
+	.setup = local_storage_tasks_trace_setup,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = report_progress,
+	.report_final = report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_lpm_trie_map.c b/tools/testing/selftests/bpf/benchs/bench_lpm_trie_map.c
new file mode 100644
index 000000000000..246f6cb3387d
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_lpm_trie_map.c
@@ -0,0 +1,555 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Cloudflare */
+
+/*
+ * All of these benchmarks operate on tries with keys in the range
+ * [0, args.nr_entries), i.e. there are no gaps or partially filled
+ * branches of the trie for any key < args.nr_entries.
+ *
+ * This gives an idea of worst-case behaviour.
+ */
+
+#include <argp.h>
+#include <linux/time64.h>
+#include <linux/if_ether.h>
+#include "lpm_trie_bench.skel.h"
+#include "lpm_trie_map.skel.h"
+#include "bench.h"
+#include "testing_helpers.h"
+#include "progs/lpm_trie.h"
+
+static struct ctx {
+	struct lpm_trie_bench *bench;
+} ctx;
+
+static struct {
+	__u32 nr_entries;
+	__u32 prefixlen;
+	bool random;
+} args = {
+	.nr_entries = 0,
+	.prefixlen = 32,
+	.random = false,
+};
+
+enum {
+	ARG_NR_ENTRIES = 9000,
+	ARG_PREFIX_LEN,
+	ARG_RANDOM,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_entries", ARG_NR_ENTRIES, "NR_ENTRIES", 0,
+	  "Number of unique entries in the LPM trie" },
+	{ "prefix_len", ARG_PREFIX_LEN, "PREFIX_LEN", 0,
+	  "Number of prefix bits to use in the LPM trie" },
+	{ "random", ARG_RANDOM, NULL, 0, "Access random keys during op" },
+	{},
+};
+
+static error_t lpm_parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_ENTRIES:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "Invalid nr_entries count.");
+			argp_usage(state);
+		}
+		args.nr_entries = ret;
+		break;
+	case ARG_PREFIX_LEN:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "Invalid prefix_len value.");
+			argp_usage(state);
+		}
+		args.prefixlen = ret;
+		break;
+	case ARG_RANDOM:
+		args.random = true;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+const struct argp bench_lpm_trie_map_argp = {
+	.options = opts,
+	.parser = lpm_parse_arg,
+};
+
+static void validate_common(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer\n");
+		exit(1);
+	}
+
+	if (args.nr_entries == 0) {
+		fprintf(stderr, "Missing --nr_entries parameter\n");
+		exit(1);
+	}
+
+	if ((1UL << args.prefixlen) < args.nr_entries) {
+		fprintf(stderr, "prefix_len value too small for nr_entries\n");
+		exit(1);
+	}
+}
+
+static void lpm_insert_validate(void)
+{
+	validate_common();
+
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "lpm-trie-insert requires a single producer\n");
+		exit(1);
+	}
+
+	if (args.random) {
+		fprintf(stderr, "lpm-trie-insert does not support --random\n");
+		exit(1);
+	}
+}
+
+static void lpm_delete_validate(void)
+{
+	validate_common();
+
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "lpm-trie-delete requires a single producer\n");
+		exit(1);
+	}
+
+	if (args.random) {
+		fprintf(stderr, "lpm-trie-delete does not support --random\n");
+		exit(1);
+	}
+}
+
+static void lpm_free_validate(void)
+{
+	validate_common();
+
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "lpm-trie-free requires a single producer\n");
+		exit(1);
+	}
+
+	if (args.random) {
+		fprintf(stderr, "lpm-trie-free does not support --random\n");
+		exit(1);
+	}
+}
+
+static struct trie_key *keys;
+static __u32 *vals;
+
+static void fill_map(int map_fd)
+{
+	int err;
+
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	err = bpf_map_update_batch(map_fd, keys, vals, &args.nr_entries, &opts);
+	if (err) {
+		fprintf(stderr, "failed to batch update keys to map: %d\n",
+			-err);
+		exit(1);
+	}
+}
+
+static void empty_map(int map_fd)
+{
+	int err;
+
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	err = bpf_map_delete_batch(map_fd, keys, &args.nr_entries, &opts);
+	if (err) {
+		fprintf(stderr, "failed to batch delete keys for map: %d\n",
+			-err);
+		exit(1);
+	}
+}
+
+static void attach_prog(void)
+{
+	int i;
+
+	ctx.bench = lpm_trie_bench__open_and_load();
+	if (!ctx.bench) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	ctx.bench->bss->nr_entries = args.nr_entries;
+	ctx.bench->bss->prefixlen = args.prefixlen;
+	ctx.bench->bss->random = args.random;
+
+	if (lpm_trie_bench__attach(ctx.bench)) {
+		fprintf(stderr, "failed to attach skeleton\n");
+		exit(1);
+	}
+
+	keys = calloc(args.nr_entries, sizeof(*keys));
+	vals = calloc(args.nr_entries, sizeof(*vals));
+
+	for (i = 0; i < args.nr_entries; i++) {
+		struct trie_key *k = &keys[i];
+		__u32 *v = &vals[i];
+
+		k->prefixlen = args.prefixlen;
+		k->data = i;
+		*v = 1;
+	}
+}
+
+static void attach_prog_and_fill_map(void)
+{
+	int fd;
+
+	attach_prog();
+
+	fd = bpf_map__fd(ctx.bench->maps.trie_map);
+	fill_map(fd);
+}
+
+static void lpm_noop_setup(void)
+{
+	attach_prog();
+	ctx.bench->bss->op = LPM_OP_NOOP;
+}
+
+static void lpm_baseline_setup(void)
+{
+	attach_prog();
+	ctx.bench->bss->op = LPM_OP_BASELINE;
+}
+
+static void lpm_lookup_setup(void)
+{
+	attach_prog_and_fill_map();
+	ctx.bench->bss->op = LPM_OP_LOOKUP;
+}
+
+static void lpm_insert_setup(void)
+{
+	attach_prog();
+	ctx.bench->bss->op = LPM_OP_INSERT;
+}
+
+static void lpm_update_setup(void)
+{
+	attach_prog_and_fill_map();
+	ctx.bench->bss->op = LPM_OP_UPDATE;
+}
+
+static void lpm_delete_setup(void)
+{
+	attach_prog_and_fill_map();
+	ctx.bench->bss->op = LPM_OP_DELETE;
+}
+
+static void lpm_free_setup(void)
+{
+	attach_prog();
+	ctx.bench->bss->op = LPM_OP_FREE;
+}
+
+static void lpm_measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.bench->bss->hits, 0);
+	res->duration_ns = atomic_swap(&ctx.bench->bss->duration_ns, 0);
+}
+
+static void bench_reinit_map(void)
+{
+	int fd = bpf_map__fd(ctx.bench->maps.trie_map);
+
+	switch (ctx.bench->bss->op) {
+	case LPM_OP_INSERT:
+		/* trie_map needs to be emptied */
+		empty_map(fd);
+		break;
+	case LPM_OP_DELETE:
+		/* trie_map needs to be refilled */
+		fill_map(fd);
+		break;
+	default:
+		fprintf(stderr, "Unexpected REINIT return code for op %d\n",
+				ctx.bench->bss->op);
+		exit(1);
+	}
+}
+
+/* For NOOP, BASELINE, LOOKUP, INSERT, UPDATE, and DELETE */
+static void *lpm_producer(void *unused __always_unused)
+{
+	int err;
+	char in[ETH_HLEN]; /* unused */
+
+	LIBBPF_OPTS(bpf_test_run_opts, opts, .data_in = in,
+		    .data_size_in = sizeof(in), .repeat = 1, );
+
+	while (true) {
+		int fd = bpf_program__fd(ctx.bench->progs.run_bench);
+		err = bpf_prog_test_run_opts(fd, &opts);
+		if (err) {
+			fprintf(stderr, "failed to run BPF prog: %d\n", err);
+			exit(1);
+		}
+
+		/* Check for kernel error code */
+		if ((int)opts.retval < 0) {
+			fprintf(stderr, "BPF prog returned error: %d\n",
+				opts.retval);
+			exit(1);
+		}
+
+		switch (opts.retval) {
+		case LPM_BENCH_SUCCESS:
+			break;
+		case LPM_BENCH_REINIT_MAP:
+			bench_reinit_map();
+			break;
+		default:
+			fprintf(stderr, "Unexpected BPF prog return code %d for op %d\n",
+					opts.retval, ctx.bench->bss->op);
+			exit(1);
+		}
+	}
+
+	return NULL;
+}
+
+static void *lpm_free_producer(void *unused __always_unused)
+{
+	while (true) {
+		struct lpm_trie_map *skel;
+
+		skel = lpm_trie_map__open_and_load();
+		if (!skel) {
+			fprintf(stderr, "failed to open skeleton\n");
+			exit(1);
+		}
+
+		fill_map(bpf_map__fd(skel->maps.trie_free_map));
+		lpm_trie_map__destroy(skel);
+	}
+
+	return NULL;
+}
+
+/*
+ * The standard bench op_report_*() functions assume measurements are
+ * taken over a 1-second interval but operations that modify the map
+ * (INSERT, DELETE, and FREE) cannot run indefinitely without
+ * "resetting" the map to the initial state. Depending on the size of
+ * the map, this likely needs to happen before the 1-second timer fires.
+ *
+ * Calculate the fraction of a second over which the op measurement was
+ * taken (to ignore any time spent doing the reset) and report the
+ * throughput results per second.
+ */
+static void frac_second_report_progress(int iter, struct bench_res *res,
+					long delta_ns, double rate_divisor,
+					char rate)
+{
+	double hits_per_sec, hits_per_prod;
+
+	hits_per_sec = res->hits / rate_divisor /
+		(res->duration_ns / (double)NSEC_PER_SEC);
+	hits_per_prod = hits_per_sec / env.producer_cnt;
+
+	printf("Iter %3d (%7.3lfus): ", iter,
+	       (delta_ns - NSEC_PER_SEC) / 1000.0);
+	printf("hits %8.3lf%c/s (%7.3lf%c/prod)\n", hits_per_sec, rate,
+	       hits_per_prod, rate);
+}
+
+static void frac_second_report_final(struct bench_res res[], int res_cnt,
+				     double lat_divisor, double rate_divisor,
+				     char rate, const char *unit)
+{
+	double hits_mean = 0.0, hits_stddev = 0.0;
+	double latency = 0.0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		double val = res[i].hits / rate_divisor /
+			     (res[i].duration_ns / (double)NSEC_PER_SEC);
+		hits_mean += val / (0.0 + res_cnt);
+		latency += res[i].duration_ns / res[i].hits / (0.0 + res_cnt);
+	}
+
+	if (res_cnt > 1) {
+		for (i = 0; i < res_cnt; i++) {
+			double val =
+				res[i].hits / rate_divisor /
+				(res[i].duration_ns / (double)NSEC_PER_SEC);
+			hits_stddev += (hits_mean - val) * (hits_mean - val) /
+				       (res_cnt - 1.0);
+		}
+
+		hits_stddev = sqrt(hits_stddev);
+	}
+	printf("Summary: throughput %8.3lf \u00B1 %5.3lf %c ops/s (%7.3lf%c ops/prod), ",
+	       hits_mean, hits_stddev, rate, hits_mean / env.producer_cnt,
+	       rate);
+	printf("latency %8.3lf %s/op\n",
+	       latency / lat_divisor / env.producer_cnt, unit);
+}
+
+static void insert_ops_report_progress(int iter, struct bench_res *res,
+				       long delta_ns)
+{
+	double rate_divisor = 1000000.0;
+	char rate = 'M';
+
+	frac_second_report_progress(iter, res, delta_ns, rate_divisor, rate);
+}
+
+static void delete_ops_report_progress(int iter, struct bench_res *res,
+				       long delta_ns)
+{
+	double rate_divisor = 1000000.0;
+	char rate = 'M';
+
+	frac_second_report_progress(iter, res, delta_ns, rate_divisor, rate);
+}
+
+static void free_ops_report_progress(int iter, struct bench_res *res,
+				     long delta_ns)
+{
+	double rate_divisor = 1000.0;
+	char rate = 'K';
+
+	frac_second_report_progress(iter, res, delta_ns, rate_divisor, rate);
+}
+
+static void insert_ops_report_final(struct bench_res res[], int res_cnt)
+{
+	double lat_divisor = 1.0;
+	double rate_divisor = 1000000.0;
+	const char *unit = "ns";
+	char rate = 'M';
+
+	frac_second_report_final(res, res_cnt, lat_divisor, rate_divisor, rate,
+				 unit);
+}
+
+static void delete_ops_report_final(struct bench_res res[], int res_cnt)
+{
+	double lat_divisor = 1.0;
+	double rate_divisor = 1000000.0;
+	const char *unit = "ns";
+	char rate = 'M';
+
+	frac_second_report_final(res, res_cnt, lat_divisor, rate_divisor, rate,
+				 unit);
+}
+
+static void free_ops_report_final(struct bench_res res[], int res_cnt)
+{
+	double lat_divisor = 1000000.0;
+	double rate_divisor = 1000.0;
+	const char *unit = "ms";
+	char rate = 'K';
+
+	frac_second_report_final(res, res_cnt, lat_divisor, rate_divisor, rate,
+				 unit);
+}
+
+/* noop bench measures harness-overhead */
+const struct bench bench_lpm_trie_noop = {
+	.name = "lpm-trie-noop",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = validate_common,
+	.setup = lpm_noop_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = ops_report_progress,
+	.report_final = ops_report_final,
+};
+
+/* baseline overhead for lookup and update */
+const struct bench bench_lpm_trie_baseline = {
+	.name = "lpm-trie-baseline",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = validate_common,
+	.setup = lpm_baseline_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = ops_report_progress,
+	.report_final = ops_report_final,
+};
+
+/* measure cost of doing a lookup on existing entries in a full trie */
+const struct bench bench_lpm_trie_lookup = {
+	.name = "lpm-trie-lookup",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = validate_common,
+	.setup = lpm_lookup_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = ops_report_progress,
+	.report_final = ops_report_final,
+};
+
+/* measure cost of inserting new entries into an empty trie */
+const struct bench bench_lpm_trie_insert = {
+	.name = "lpm-trie-insert",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = lpm_insert_validate,
+	.setup = lpm_insert_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = insert_ops_report_progress,
+	.report_final = insert_ops_report_final,
+};
+
+/* measure cost of updating existing entries in a full trie */
+const struct bench bench_lpm_trie_update = {
+	.name = "lpm-trie-update",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = validate_common,
+	.setup = lpm_update_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = ops_report_progress,
+	.report_final = ops_report_final,
+};
+
+/* measure cost of deleting existing entries from a full trie */
+const struct bench bench_lpm_trie_delete = {
+	.name = "lpm-trie-delete",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = lpm_delete_validate,
+	.setup = lpm_delete_setup,
+	.producer_thread = lpm_producer,
+	.measure = lpm_measure,
+	.report_progress = delete_ops_report_progress,
+	.report_final = delete_ops_report_final,
+};
+
+/* measure cost of freeing a full trie */
+const struct bench bench_lpm_trie_free = {
+	.name = "lpm-trie-free",
+	.argp = &bench_lpm_trie_map_argp,
+	.validate = lpm_free_validate,
+	.setup = lpm_free_setup,
+	.producer_thread = lpm_free_producer,
+	.measure = lpm_measure,
+	.report_progress = free_ops_report_progress,
+	.report_final = free_ops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_rename.c b/tools/testing/selftests/bpf/benchs/bench_rename.c
new file mode 100644
index 000000000000..bf66893c7a33
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_rename.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <fcntl.h>
+#include "bench.h"
+#include "test_overhead.skel.h"
+
+/* BPF triggering benchmarks */
+static struct ctx {
+	struct test_overhead *skel;
+	struct counter hits;
+	int fd;
+} ctx;
+
+static void validate(void)
+{
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-producer!\n");
+		exit(1);
+	}
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void *producer(void *input)
+{
+	char buf[] = "test_overhead";
+	int err;
+
+	while (true) {
+		err = write(ctx.fd, buf, sizeof(buf));
+		if (err < 0) {
+			fprintf(stderr, "write failed\n");
+			exit(1);
+		}
+		atomic_inc(&ctx.hits.value);
+	}
+}
+
+static void measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.hits.value, 0);
+}
+
+static void setup_ctx(void)
+{
+	setup_libbpf();
+
+	ctx.skel = test_overhead__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	ctx.fd = open("/proc/self/comm", O_WRONLY|O_TRUNC);
+	if (ctx.fd < 0) {
+		fprintf(stderr, "failed to open /proc/self/comm: %d\n", -errno);
+		exit(1);
+	}
+}
+
+static void attach_bpf(struct bpf_program *prog)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(prog);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void setup_base(void)
+{
+	setup_ctx();
+}
+
+static void setup_kprobe(void)
+{
+	setup_ctx();
+	attach_bpf(ctx.skel->progs.prog1);
+}
+
+static void setup_kretprobe(void)
+{
+	setup_ctx();
+	attach_bpf(ctx.skel->progs.prog2);
+}
+
+static void setup_rawtp(void)
+{
+	setup_ctx();
+	attach_bpf(ctx.skel->progs.prog3);
+}
+
+static void setup_fentry(void)
+{
+	setup_ctx();
+	attach_bpf(ctx.skel->progs.prog4);
+}
+
+static void setup_fexit(void)
+{
+	setup_ctx();
+	attach_bpf(ctx.skel->progs.prog5);
+}
+
+const struct bench bench_rename_base = {
+	.name = "rename-base",
+	.validate = validate,
+	.setup = setup_base,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rename_kprobe = {
+	.name = "rename-kprobe",
+	.validate = validate,
+	.setup = setup_kprobe,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rename_kretprobe = {
+	.name = "rename-kretprobe",
+	.validate = validate,
+	.setup = setup_kretprobe,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rename_rawtp = {
+	.name = "rename-rawtp",
+	.validate = validate,
+	.setup = setup_rawtp,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rename_fentry = {
+	.name = "rename-fentry",
+	.validate = validate,
+	.setup = setup_fentry,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rename_fexit = {
+	.name = "rename-fexit",
+	.validate = validate,
+	.setup = setup_fexit,
+	.producer_thread = producer,
+	.measure = measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_ringbufs.c b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c
new file mode 100644
index 000000000000..01bdce692799
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_ringbufs.c
@@ -0,0 +1,619 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <asm/barrier.h>
+#include <linux/perf_event.h>
+#include <linux/ring_buffer.h>
+#include <sys/epoll.h>
+#include <sys/mman.h>
+#include <argp.h>
+#include <stdlib.h>
+#include "bench.h"
+#include "ringbuf_bench.skel.h"
+#include "perfbuf_bench.skel.h"
+
+static struct {
+	bool back2back;
+	int batch_cnt;
+	bool sampled;
+	int sample_rate;
+	int ringbuf_sz; /* per-ringbuf, in bytes */
+	bool ringbuf_use_output; /* use slower output API */
+	int perfbuf_sz; /* per-CPU size, in pages */
+	bool overwrite;
+	bool bench_producer;
+} args = {
+	.back2back = false,
+	.batch_cnt = 500,
+	.sampled = false,
+	.sample_rate = 500,
+	.ringbuf_sz = 512 * 1024,
+	.ringbuf_use_output = false,
+	.perfbuf_sz = 128,
+	.overwrite = false,
+	.bench_producer = false,
+};
+
+enum {
+	ARG_RB_BACK2BACK = 2000,
+	ARG_RB_USE_OUTPUT = 2001,
+	ARG_RB_BATCH_CNT = 2002,
+	ARG_RB_SAMPLED = 2003,
+	ARG_RB_SAMPLE_RATE = 2004,
+	ARG_RB_OVERWRITE = 2005,
+	ARG_RB_BENCH_PRODUCER = 2006,
+};
+
+static const struct argp_option opts[] = {
+	{ "rb-b2b", ARG_RB_BACK2BACK, NULL, 0, "Back-to-back mode"},
+	{ "rb-use-output", ARG_RB_USE_OUTPUT, NULL, 0, "Use bpf_ringbuf_output() instead of bpf_ringbuf_reserve()"},
+	{ "rb-batch-cnt", ARG_RB_BATCH_CNT, "CNT", 0, "Set BPF-side record batch count"},
+	{ "rb-sampled", ARG_RB_SAMPLED, NULL, 0, "Notification sampling"},
+	{ "rb-sample-rate", ARG_RB_SAMPLE_RATE, "RATE", 0, "Notification sample rate"},
+	{ "rb-overwrite", ARG_RB_OVERWRITE, NULL, 0, "Overwrite mode"},
+	{ "rb-bench-producer", ARG_RB_BENCH_PRODUCER, NULL, 0, "Benchmark producer"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_RB_BACK2BACK:
+		args.back2back = true;
+		break;
+	case ARG_RB_USE_OUTPUT:
+		args.ringbuf_use_output = true;
+		break;
+	case ARG_RB_BATCH_CNT:
+		args.batch_cnt = strtol(arg, NULL, 10);
+		if (args.batch_cnt < 0) {
+			fprintf(stderr, "Invalid batch count.");
+			argp_usage(state);
+		}
+		break;
+	case ARG_RB_SAMPLED:
+		args.sampled = true;
+		break;
+	case ARG_RB_SAMPLE_RATE:
+		args.sample_rate = strtol(arg, NULL, 10);
+		if (args.sample_rate < 0) {
+			fprintf(stderr, "Invalid perfbuf sample rate.");
+			argp_usage(state);
+		}
+		break;
+	case ARG_RB_OVERWRITE:
+		args.overwrite = true;
+		break;
+	case ARG_RB_BENCH_PRODUCER:
+		args.bench_producer = true;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+/* exported into benchmark runner */
+const struct argp bench_ringbufs_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+/* RINGBUF-LIBBPF benchmark */
+
+static struct counter buf_hits;
+
+static inline void bufs_trigger_batch(void)
+{
+	(void)syscall(__NR_getpgid);
+}
+
+static void bufs_validate(void)
+{
+	if (args.bench_producer && strcmp(env.bench_name, "rb-libbpf")) {
+		fprintf(stderr, "--rb-bench-producer only works with rb-libbpf!\n");
+		exit(1);
+	}
+
+	if (args.overwrite && !args.bench_producer) {
+		fprintf(stderr, "overwrite mode only works with --rb-bench-producer for now!\n");
+		exit(1);
+	}
+
+	if (args.bench_producer && env.consumer_cnt != 0) {
+		fprintf(stderr, "no consumer is needed for --rb-bench-producer!\n");
+		exit(1);
+	}
+
+	if (args.bench_producer && args.back2back) {
+		fprintf(stderr, "back-to-back mode makes no sense for --rb-bench-producer!\n");
+		exit(1);
+	}
+
+	if (args.bench_producer && args.sampled) {
+		fprintf(stderr, "sampling mode makes no sense for --rb-bench-producer!\n");
+		exit(1);
+	}
+
+	if (!args.bench_producer && env.consumer_cnt != 1) {
+		fprintf(stderr, "benchmarks without --rb-bench-producer require exactly one consumer!\n");
+		exit(1);
+	}
+
+	if (args.back2back && env.producer_cnt > 1) {
+		fprintf(stderr, "back-to-back mode makes sense only for single-producer case!\n");
+		exit(1);
+	}
+}
+
+static void *bufs_sample_producer(void *input)
+{
+	if (args.back2back) {
+		/* initial batch to get everything started */
+		bufs_trigger_batch();
+		return NULL;
+	}
+
+	while (true)
+		bufs_trigger_batch();
+	return NULL;
+}
+
+static struct ringbuf_libbpf_ctx {
+	struct ringbuf_bench *skel;
+	struct ring_buffer *ringbuf;
+} ringbuf_libbpf_ctx;
+
+static void ringbuf_libbpf_measure(struct bench_res *res)
+{
+	struct ringbuf_libbpf_ctx *ctx = &ringbuf_libbpf_ctx;
+
+	if (args.bench_producer)
+		res->hits = atomic_swap(&ctx->skel->bss->hits, 0);
+	else
+		res->hits = atomic_swap(&buf_hits.value, 0);
+	res->drops = atomic_swap(&ctx->skel->bss->dropped, 0);
+}
+
+static struct ringbuf_bench *ringbuf_setup_skeleton(void)
+{
+	__u32 flags;
+	struct bpf_map *ringbuf;
+	struct ringbuf_bench *skel;
+
+	setup_libbpf();
+
+	skel = ringbuf_bench__open();
+	if (!skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	skel->rodata->batch_cnt = args.batch_cnt;
+	skel->rodata->use_output = args.ringbuf_use_output ? 1 : 0;
+	skel->rodata->bench_producer = args.bench_producer;
+
+	if (args.sampled)
+		/* record data + header take 16 bytes */
+		skel->rodata->wakeup_data_size = args.sample_rate * 16;
+
+	ringbuf = skel->maps.ringbuf;
+	if (args.overwrite) {
+		flags = bpf_map__map_flags(ringbuf) | BPF_F_RB_OVERWRITE;
+		bpf_map__set_map_flags(ringbuf, flags);
+	}
+
+	bpf_map__set_max_entries(ringbuf, args.ringbuf_sz);
+
+	if (ringbuf_bench__load(skel)) {
+		fprintf(stderr, "failed to load skeleton\n");
+		exit(1);
+	}
+
+	return skel;
+}
+
+static int buf_process_sample(void *ctx, void *data, size_t len)
+{
+	atomic_inc(&buf_hits.value);
+	return 0;
+}
+
+static void ringbuf_libbpf_setup(void)
+{
+	struct ringbuf_libbpf_ctx *ctx = &ringbuf_libbpf_ctx;
+	struct bpf_link *link;
+	int map_fd;
+
+	ctx->skel = ringbuf_setup_skeleton();
+
+	map_fd = bpf_map__fd(ctx->skel->maps.ringbuf);
+	ctx->ringbuf = ring_buffer__new(map_fd, buf_process_sample, NULL, NULL);
+	if (!ctx->ringbuf) {
+		fprintf(stderr, "failed to create ringbuf\n");
+		exit(1);
+	}
+
+	link = bpf_program__attach(ctx->skel->progs.bench_ringbuf);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void *ringbuf_libbpf_consumer(void *input)
+{
+	struct ringbuf_libbpf_ctx *ctx = &ringbuf_libbpf_ctx;
+
+	while (ring_buffer__poll(ctx->ringbuf, -1) >= 0) {
+		if (args.back2back)
+			bufs_trigger_batch();
+	}
+	fprintf(stderr, "ringbuf polling failed!\n");
+	return NULL;
+}
+
+/* RINGBUF-CUSTOM benchmark */
+struct ringbuf_custom {
+	__u64 *consumer_pos;
+	__u64 *producer_pos;
+	__u64 mask;
+	void *data;
+	int map_fd;
+};
+
+static struct ringbuf_custom_ctx {
+	struct ringbuf_bench *skel;
+	struct ringbuf_custom ringbuf;
+	int epoll_fd;
+	struct epoll_event event;
+} ringbuf_custom_ctx;
+
+static void ringbuf_custom_measure(struct bench_res *res)
+{
+	struct ringbuf_custom_ctx *ctx = &ringbuf_custom_ctx;
+
+	res->hits = atomic_swap(&buf_hits.value, 0);
+	res->drops = atomic_swap(&ctx->skel->bss->dropped, 0);
+}
+
+static void ringbuf_custom_setup(void)
+{
+	struct ringbuf_custom_ctx *ctx = &ringbuf_custom_ctx;
+	const size_t page_size = getpagesize();
+	struct bpf_link *link;
+	struct ringbuf_custom *r;
+	void *tmp;
+	int err;
+
+	ctx->skel = ringbuf_setup_skeleton();
+
+	ctx->epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+	if (ctx->epoll_fd < 0) {
+		fprintf(stderr, "failed to create epoll fd: %d\n", -errno);
+		exit(1);
+	}
+
+	r = &ctx->ringbuf;
+	r->map_fd = bpf_map__fd(ctx->skel->maps.ringbuf);
+	r->mask = args.ringbuf_sz - 1;
+
+	/* Map writable consumer page */
+	tmp = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
+		   r->map_fd, 0);
+	if (tmp == MAP_FAILED) {
+		fprintf(stderr, "failed to mmap consumer page: %d\n", -errno);
+		exit(1);
+	}
+	r->consumer_pos = tmp;
+
+	/* Map read-only producer page and data pages. */
+	tmp = mmap(NULL, page_size + 2 * args.ringbuf_sz, PROT_READ, MAP_SHARED,
+		   r->map_fd, page_size);
+	if (tmp == MAP_FAILED) {
+		fprintf(stderr, "failed to mmap data pages: %d\n", -errno);
+		exit(1);
+	}
+	r->producer_pos = tmp;
+	r->data = tmp + page_size;
+
+	ctx->event.events = EPOLLIN;
+	err = epoll_ctl(ctx->epoll_fd, EPOLL_CTL_ADD, r->map_fd, &ctx->event);
+	if (err < 0) {
+		fprintf(stderr, "failed to epoll add ringbuf: %d\n", -errno);
+		exit(1);
+	}
+
+	link = bpf_program__attach(ctx->skel->progs.bench_ringbuf);
+	if (!link) {
+		fprintf(stderr, "failed to attach program\n");
+		exit(1);
+	}
+}
+
+#define RINGBUF_BUSY_BIT (1 << 31)
+#define RINGBUF_DISCARD_BIT (1 << 30)
+#define RINGBUF_META_LEN 8
+
+static inline int roundup_len(__u32 len)
+{
+	/* clear out top 2 bits */
+	len <<= 2;
+	len >>= 2;
+	/* add length prefix */
+	len += RINGBUF_META_LEN;
+	/* round up to 8 byte alignment */
+	return (len + 7) / 8 * 8;
+}
+
+static void ringbuf_custom_process_ring(struct ringbuf_custom *r)
+{
+	unsigned long cons_pos, prod_pos;
+	int *len_ptr, len;
+	bool got_new_data;
+
+	cons_pos = smp_load_acquire(r->consumer_pos);
+	while (true) {
+		got_new_data = false;
+		prod_pos = smp_load_acquire(r->producer_pos);
+		while (cons_pos < prod_pos) {
+			len_ptr = r->data + (cons_pos & r->mask);
+			len = smp_load_acquire(len_ptr);
+
+			/* sample not committed yet, bail out for now */
+			if (len & RINGBUF_BUSY_BIT)
+				return;
+
+			got_new_data = true;
+			cons_pos += roundup_len(len);
+
+			atomic_inc(&buf_hits.value);
+		}
+		if (got_new_data)
+			smp_store_release(r->consumer_pos, cons_pos);
+		else
+			break;
+	}
+}
+
+static void *ringbuf_custom_consumer(void *input)
+{
+	struct ringbuf_custom_ctx *ctx = &ringbuf_custom_ctx;
+	int cnt;
+
+	do {
+		if (args.back2back)
+			bufs_trigger_batch();
+		cnt = epoll_wait(ctx->epoll_fd, &ctx->event, 1, -1);
+		if (cnt > 0)
+			ringbuf_custom_process_ring(&ctx->ringbuf);
+	} while (cnt >= 0);
+	fprintf(stderr, "ringbuf polling failed!\n");
+	return 0;
+}
+
+/* PERFBUF-LIBBPF benchmark */
+static struct perfbuf_libbpf_ctx {
+	struct perfbuf_bench *skel;
+	struct perf_buffer *perfbuf;
+} perfbuf_libbpf_ctx;
+
+static void perfbuf_measure(struct bench_res *res)
+{
+	struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx;
+
+	res->hits = atomic_swap(&buf_hits.value, 0);
+	res->drops = atomic_swap(&ctx->skel->bss->dropped, 0);
+}
+
+static struct perfbuf_bench *perfbuf_setup_skeleton(void)
+{
+	struct perfbuf_bench *skel;
+
+	setup_libbpf();
+
+	skel = perfbuf_bench__open();
+	if (!skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	skel->rodata->batch_cnt = args.batch_cnt;
+
+	if (perfbuf_bench__load(skel)) {
+		fprintf(stderr, "failed to load skeleton\n");
+		exit(1);
+	}
+
+	return skel;
+}
+
+static enum bpf_perf_event_ret
+perfbuf_process_sample_raw(void *input_ctx, int cpu,
+			   struct perf_event_header *e)
+{
+	switch (e->type) {
+	case PERF_RECORD_SAMPLE:
+		atomic_inc(&buf_hits.value);
+		break;
+	case PERF_RECORD_LOST:
+		break;
+	default:
+		return LIBBPF_PERF_EVENT_ERROR;
+	}
+	return LIBBPF_PERF_EVENT_CONT;
+}
+
+static void perfbuf_libbpf_setup(void)
+{
+	struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx;
+	struct perf_event_attr attr;
+	struct bpf_link *link;
+
+	ctx->skel = perfbuf_setup_skeleton();
+
+	memset(&attr, 0, sizeof(attr));
+	attr.config = PERF_COUNT_SW_BPF_OUTPUT;
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.sample_type = PERF_SAMPLE_RAW;
+	/* notify only every Nth sample */
+	if (args.sampled) {
+		attr.sample_period = args.sample_rate;
+		attr.wakeup_events = args.sample_rate;
+	} else {
+		attr.sample_period = 1;
+		attr.wakeup_events = 1;
+	}
+
+	if (args.sample_rate > args.batch_cnt) {
+		fprintf(stderr, "sample rate %d is too high for given batch count %d\n",
+			args.sample_rate, args.batch_cnt);
+		exit(1);
+	}
+
+	ctx->perfbuf = perf_buffer__new_raw(bpf_map__fd(ctx->skel->maps.perfbuf),
+					    args.perfbuf_sz, &attr,
+					    perfbuf_process_sample_raw, NULL, NULL);
+	if (!ctx->perfbuf) {
+		fprintf(stderr, "failed to create perfbuf\n");
+		exit(1);
+	}
+
+	link = bpf_program__attach(ctx->skel->progs.bench_perfbuf);
+	if (!link) {
+		fprintf(stderr, "failed to attach program\n");
+		exit(1);
+	}
+}
+
+static void *perfbuf_libbpf_consumer(void *input)
+{
+	struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx;
+
+	while (perf_buffer__poll(ctx->perfbuf, -1) >= 0) {
+		if (args.back2back)
+			bufs_trigger_batch();
+	}
+	fprintf(stderr, "perfbuf polling failed!\n");
+	return NULL;
+}
+
+/* PERFBUF-CUSTOM benchmark */
+
+/* copies of internal libbpf definitions */
+struct perf_cpu_buf {
+	struct perf_buffer *pb;
+	void *base; /* mmap()'ed memory */
+	void *buf; /* for reconstructing segmented data */
+	size_t buf_size;
+	int fd;
+	int cpu;
+	int map_key;
+};
+
+struct perf_buffer {
+	perf_buffer_event_fn event_cb;
+	perf_buffer_sample_fn sample_cb;
+	perf_buffer_lost_fn lost_cb;
+	void *ctx; /* passed into callbacks */
+
+	size_t page_size;
+	size_t mmap_size;
+	struct perf_cpu_buf **cpu_bufs;
+	struct epoll_event *events;
+	int cpu_cnt; /* number of allocated CPU buffers */
+	int epoll_fd; /* perf event FD */
+	int map_fd; /* BPF_MAP_TYPE_PERF_EVENT_ARRAY BPF map FD */
+};
+
+static void *perfbuf_custom_consumer(void *input)
+{
+	struct perfbuf_libbpf_ctx *ctx = &perfbuf_libbpf_ctx;
+	struct perf_buffer *pb = ctx->perfbuf;
+	struct perf_cpu_buf *cpu_buf;
+	struct perf_event_mmap_page *header;
+	size_t mmap_mask = pb->mmap_size - 1;
+	struct perf_event_header *ehdr;
+	__u64 data_head, data_tail;
+	size_t ehdr_size;
+	void *base;
+	int i, cnt;
+
+	while (true) {
+		if (args.back2back)
+			bufs_trigger_batch();
+		cnt = epoll_wait(pb->epoll_fd, pb->events, pb->cpu_cnt, -1);
+		if (cnt <= 0) {
+			fprintf(stderr, "perf epoll failed: %d\n", -errno);
+			exit(1);
+		}
+
+		for (i = 0; i < cnt; ++i) {
+			cpu_buf = pb->events[i].data.ptr;
+			header = cpu_buf->base;
+			base = ((void *)header) + pb->page_size;
+
+			data_head = ring_buffer_read_head(header);
+			data_tail = header->data_tail;
+			while (data_head != data_tail) {
+				ehdr = base + (data_tail & mmap_mask);
+				ehdr_size = ehdr->size;
+
+				if (ehdr->type == PERF_RECORD_SAMPLE)
+					atomic_inc(&buf_hits.value);
+
+				data_tail += ehdr_size;
+			}
+			ring_buffer_write_tail(header, data_tail);
+		}
+	}
+	return NULL;
+}
+
+const struct bench bench_rb_libbpf = {
+	.name = "rb-libbpf",
+	.argp = &bench_ringbufs_argp,
+	.validate = bufs_validate,
+	.setup = ringbuf_libbpf_setup,
+	.producer_thread = bufs_sample_producer,
+	.consumer_thread = ringbuf_libbpf_consumer,
+	.measure = ringbuf_libbpf_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_rb_custom = {
+	.name = "rb-custom",
+	.argp = &bench_ringbufs_argp,
+	.validate = bufs_validate,
+	.setup = ringbuf_custom_setup,
+	.producer_thread = bufs_sample_producer,
+	.consumer_thread = ringbuf_custom_consumer,
+	.measure = ringbuf_custom_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_pb_libbpf = {
+	.name = "pb-libbpf",
+	.argp = &bench_ringbufs_argp,
+	.validate = bufs_validate,
+	.setup = perfbuf_libbpf_setup,
+	.producer_thread = bufs_sample_producer,
+	.consumer_thread = perfbuf_libbpf_consumer,
+	.measure = perfbuf_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_pb_custom = {
+	.name = "pb-custom",
+	.argp = &bench_ringbufs_argp,
+	.validate = bufs_validate,
+	.setup = perfbuf_libbpf_setup,
+	.producer_thread = bufs_sample_producer,
+	.consumer_thread = perfbuf_custom_consumer,
+	.measure = perfbuf_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
diff --git a/tools/testing/selftests/bpf/benchs/bench_sockmap.c b/tools/testing/selftests/bpf/benchs/bench_sockmap.c
new file mode 100644
index 000000000000..cfc072aa7fff
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_sockmap.c
@@ -0,0 +1,599 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <error.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <sys/sendfile.h>
+#include <arpa/inet.h>
+#include <fcntl.h>
+#include <argp.h>
+#include "bench.h"
+#include "bench_sockmap_prog.skel.h"
+#include "bpf_util.h"
+
+#define FILE_SIZE (128 * 1024)
+#define DATA_REPEAT_SIZE 10
+
+static const char snd_data[DATA_REPEAT_SIZE] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+
+/* c1 <-> [p1, p2] <-> c2
+ * RX bench(BPF_SK_SKB_STREAM_VERDICT):
+ *	ARG_FW_RX_PASS:
+ *		send(p2) -> recv(c2) -> bpf skb passthrough -> recv(c2)
+ *	ARG_FW_RX_VERDICT_EGRESS:
+ *		send(c1) -> verdict skb to tx queuec of p2 -> recv(c2)
+ *	ARG_FW_RX_VERDICT_INGRESS:
+ *		send(c1) -> verdict skb to rx queuec of c2 -> recv(c2)
+ *
+ * TX bench(BPF_SK_MSG_VERDIC):
+ *	ARG_FW_TX_PASS:
+ *		send(p2) -> bpf msg passthrough -> send(p2) -> recv(c2)
+ *	ARG_FW_TX_VERDICT_INGRESS:
+ *		send(p2) -> verdict msg to rx queue of c2 -> recv(c2)
+ *	ARG_FW_TX_VERDICT_EGRESS:
+ *		send(p1) -> verdict msg to tx queue of p2 -> recv(c2)
+ */
+enum SOCKMAP_ARG_FLAG {
+	ARG_FW_RX_NORMAL = 11000,
+	ARG_FW_RX_PASS,
+	ARG_FW_RX_VERDICT_EGRESS,
+	ARG_FW_RX_VERDICT_INGRESS,
+	ARG_FW_TX_NORMAL,
+	ARG_FW_TX_PASS,
+	ARG_FW_TX_VERDICT_INGRESS,
+	ARG_FW_TX_VERDICT_EGRESS,
+	ARG_CTL_RX_STRP,
+	ARG_CONSUMER_DELAY_TIME,
+	ARG_PRODUCER_DURATION,
+};
+
+#define TXMODE_NORMAL()				\
+	((ctx.mode) == ARG_FW_TX_NORMAL)
+
+#define TXMODE_BPF_INGRESS()			\
+	((ctx.mode) == ARG_FW_TX_VERDICT_INGRESS)
+
+#define TXMODE_BPF_EGRESS()			\
+	((ctx.mode) == ARG_FW_TX_VERDICT_EGRESS)
+
+#define TXMODE_BPF_PASS()			\
+	((ctx.mode) == ARG_FW_TX_PASS)
+
+#define TXMODE_BPF() (				\
+	TXMODE_BPF_PASS() ||			\
+	TXMODE_BPF_INGRESS() ||			\
+	TXMODE_BPF_EGRESS())
+
+#define TXMODE() (				\
+	TXMODE_NORMAL() ||			\
+	TXMODE_BPF())
+
+#define RXMODE_NORMAL()				\
+	((ctx.mode) == ARG_FW_RX_NORMAL)
+
+#define RXMODE_BPF_PASS()			\
+	((ctx.mode) == ARG_FW_RX_PASS)
+
+#define RXMODE_BPF_VERDICT_EGRESS()		\
+	((ctx.mode) == ARG_FW_RX_VERDICT_EGRESS)
+
+#define RXMODE_BPF_VERDICT_INGRESS()		\
+	((ctx.mode) == ARG_FW_RX_VERDICT_INGRESS)
+
+#define RXMODE_BPF_VERDICT() (			\
+	RXMODE_BPF_VERDICT_INGRESS() ||		\
+	RXMODE_BPF_VERDICT_EGRESS())
+
+#define RXMODE_BPF() (				\
+	RXMODE_BPF_PASS() ||			\
+	RXMODE_BPF_VERDICT())
+
+#define RXMODE() (				\
+	RXMODE_NORMAL() ||			\
+	RXMODE_BPF())
+
+static struct socmap_ctx {
+	struct bench_sockmap_prog *skel;
+	enum SOCKMAP_ARG_FLAG mode;
+	#define c1	fds[0]
+	#define p1	fds[1]
+	#define c2	fds[2]
+	#define p2	fds[3]
+	#define sfd	fds[4]
+	int		fds[5];
+	long		send_calls;
+	long		read_calls;
+	long		prod_send;
+	long		user_read;
+	int		file_size;
+	int		delay_consumer;
+	int		prod_run_time;
+	int		strp_size;
+} ctx = {
+	.prod_send	= 0,
+	.user_read	= 0,
+	.file_size	= FILE_SIZE,
+	.mode		= ARG_FW_RX_VERDICT_EGRESS,
+	.fds		= {0},
+	.delay_consumer = 0,
+	.prod_run_time	= 0,
+	.strp_size	= 0,
+};
+
+static void bench_sockmap_prog_destroy(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ctx.fds); i++) {
+		if (ctx.fds[i] > 0)
+			close(ctx.fds[i]);
+	}
+
+	bench_sockmap_prog__destroy(ctx.skel);
+}
+
+static void init_addr(struct sockaddr_storage *ss,
+		      socklen_t *len)
+{
+	struct sockaddr_in *addr4 = memset(ss, 0, sizeof(*ss));
+
+	addr4->sin_family = AF_INET;
+	addr4->sin_port = 0;
+	addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	*len = sizeof(*addr4);
+}
+
+static bool set_non_block(int fd, bool blocking)
+{
+	int flags = fcntl(fd, F_GETFL, 0);
+
+	if (flags == -1)
+		return false;
+	flags = blocking ? (flags | O_NONBLOCK) : (flags & ~O_NONBLOCK);
+	return (fcntl(fd, F_SETFL, flags) == 0);
+}
+
+static int create_pair(int *c, int *p, int type)
+{
+	struct sockaddr_storage addr;
+	int err, cfd, pfd;
+	socklen_t addr_len = sizeof(struct sockaddr_storage);
+
+	err = getsockname(ctx.sfd, (struct sockaddr *)&addr, &addr_len);
+	if (err) {
+		fprintf(stderr, "getsockname error %d\n", errno);
+		return err;
+	}
+	cfd = socket(AF_INET, type, 0);
+	if (cfd < 0) {
+		fprintf(stderr, "socket error %d\n", errno);
+		return err;
+	}
+
+	err = connect(cfd, (struct sockaddr *)&addr, addr_len);
+	if (err && errno != EINPROGRESS) {
+		fprintf(stderr, "connect error %d\n", errno);
+		return err;
+	}
+
+	pfd = accept(ctx.sfd, NULL, NULL);
+	if (pfd < 0) {
+		fprintf(stderr, "accept error %d\n", errno);
+		return err;
+	}
+	*c = cfd;
+	*p = pfd;
+	return 0;
+}
+
+static int create_sockets(void)
+{
+	struct sockaddr_storage addr;
+	int err, one = 1;
+	socklen_t addr_len;
+
+	init_addr(&addr, &addr_len);
+	ctx.sfd = socket(AF_INET, SOCK_STREAM, 0);
+	if (ctx.sfd < 0) {
+		fprintf(stderr, "socket error:%d\n", errno);
+		return ctx.sfd;
+	}
+	err = setsockopt(ctx.sfd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one));
+	if (err) {
+		fprintf(stderr, "setsockopt error:%d\n", errno);
+		return err;
+	}
+
+	err = bind(ctx.sfd, (struct sockaddr *)&addr, addr_len);
+	if (err) {
+		fprintf(stderr, "bind error:%d\n", errno);
+		return err;
+	}
+
+	err = listen(ctx.sfd, SOMAXCONN);
+	if (err) {
+		fprintf(stderr, "listen error:%d\n", errno);
+		return err;
+	}
+
+	err = create_pair(&ctx.c1, &ctx.p1, SOCK_STREAM);
+	if (err) {
+		fprintf(stderr, "create_pair 1 error\n");
+		return err;
+	}
+
+	err = create_pair(&ctx.c2, &ctx.p2, SOCK_STREAM);
+	if (err) {
+		fprintf(stderr, "create_pair 2 error\n");
+		return err;
+	}
+	printf("create socket fd c1:%d p1:%d c2:%d p2:%d\n",
+	       ctx.c1, ctx.p1, ctx.c2, ctx.p2);
+	return 0;
+}
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 2 || env.producer_cnt != 1 ||
+	    !env.affinity)
+		goto err;
+	return;
+err:
+	fprintf(stderr, "argument '-c 2 -p 1 -a' is necessary");
+	exit(1);
+}
+
+static int setup_rx_sockmap(void)
+{
+	int verdict, pass, parser, map;
+	int zero = 0, one = 1;
+	int err;
+
+	parser = bpf_program__fd(ctx.skel->progs.prog_skb_parser);
+	verdict = bpf_program__fd(ctx.skel->progs.prog_skb_verdict);
+	pass = bpf_program__fd(ctx.skel->progs.prog_skb_pass);
+	map = bpf_map__fd(ctx.skel->maps.sock_map_rx);
+
+	if (ctx.strp_size != 0) {
+		ctx.skel->bss->pkt_size = ctx.strp_size;
+		err = bpf_prog_attach(parser, map, BPF_SK_SKB_STREAM_PARSER, 0);
+		if (err)
+			return err;
+	}
+
+	if (RXMODE_BPF_VERDICT())
+		err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	else if (RXMODE_BPF_PASS())
+		err = bpf_prog_attach(pass, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err)
+		return err;
+
+	if (RXMODE_BPF_PASS())
+		return bpf_map_update_elem(map, &zero, &ctx.c2, BPF_NOEXIST);
+
+	err = bpf_map_update_elem(map, &zero, &ctx.p1, BPF_NOEXIST);
+	if (err < 0)
+		return err;
+
+	if (RXMODE_BPF_VERDICT_INGRESS()) {
+		ctx.skel->bss->verdict_dir = BPF_F_INGRESS;
+		err = bpf_map_update_elem(map, &one, &ctx.c2, BPF_NOEXIST);
+	} else {
+		err = bpf_map_update_elem(map, &one, &ctx.p2, BPF_NOEXIST);
+	}
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int setup_tx_sockmap(void)
+{
+	int zero = 0, one = 1;
+	int prog, map;
+	int err;
+
+	map = bpf_map__fd(ctx.skel->maps.sock_map_tx);
+	prog = TXMODE_BPF_PASS() ?
+		bpf_program__fd(ctx.skel->progs.prog_skmsg_pass) :
+		bpf_program__fd(ctx.skel->progs.prog_skmsg_verdict);
+
+	err = bpf_prog_attach(prog, map, BPF_SK_MSG_VERDICT, 0);
+	if (err)
+		return err;
+
+	if (TXMODE_BPF_EGRESS()) {
+		err = bpf_map_update_elem(map, &zero, &ctx.p1, BPF_NOEXIST);
+		err |= bpf_map_update_elem(map, &one, &ctx.p2, BPF_NOEXIST);
+	} else {
+		ctx.skel->bss->verdict_dir = BPF_F_INGRESS;
+		err = bpf_map_update_elem(map, &zero, &ctx.p2, BPF_NOEXIST);
+		err |= bpf_map_update_elem(map, &one, &ctx.c2, BPF_NOEXIST);
+	}
+
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static void setup(void)
+{
+	int err;
+
+	ctx.skel = bench_sockmap_prog__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "error loading skel\n");
+		exit(1);
+	}
+
+	if (create_sockets()) {
+		fprintf(stderr, "create_net_mode error\n");
+		goto err;
+	}
+
+	if (RXMODE_BPF()) {
+		err = setup_rx_sockmap();
+		if (err) {
+			fprintf(stderr, "setup_rx_sockmap error:%d\n", err);
+			goto err;
+		}
+	} else if (TXMODE_BPF()) {
+		err = setup_tx_sockmap();
+		if (err) {
+			fprintf(stderr, "setup_tx_sockmap error:%d\n", err);
+			goto err;
+		}
+	} else {
+		fprintf(stderr, "unknown sockmap bench mode: %d\n", ctx.mode);
+		goto err;
+	}
+
+	return;
+
+err:
+	bench_sockmap_prog_destroy();
+	exit(1);
+}
+
+static void measure(struct bench_res *res)
+{
+	res->drops = atomic_swap(&ctx.prod_send, 0);
+	res->hits = atomic_swap(&ctx.skel->bss->process_byte, 0);
+	res->false_hits = atomic_swap(&ctx.user_read, 0);
+	res->important_hits = atomic_swap(&ctx.send_calls, 0);
+	res->important_hits |= atomic_swap(&ctx.read_calls, 0) << 32;
+}
+
+static void verify_data(int *check_pos, char *buf, int rcv)
+{
+	for (int i = 0 ; i < rcv; i++) {
+		if (buf[i] != snd_data[(*check_pos) % DATA_REPEAT_SIZE]) {
+			fprintf(stderr, "verify data fail");
+			exit(1);
+		}
+		(*check_pos)++;
+		if (*check_pos >= FILE_SIZE)
+			*check_pos = 0;
+	}
+}
+
+static void *consumer(void *input)
+{
+	int rcv, sent;
+	int check_pos = 0;
+	int tid = (long)input;
+	int recv_buf_size = FILE_SIZE;
+	char *buf = malloc(recv_buf_size);
+	int delay_read = ctx.delay_consumer;
+
+	if (!buf) {
+		fprintf(stderr, "fail to init read buffer");
+		return NULL;
+	}
+
+	while (true) {
+		if (tid == 1) {
+			/* consumer 1 is unused for tx test and stream verdict test */
+			if (RXMODE_BPF() || TXMODE())
+				return NULL;
+			/* it's only for RX_NORMAL which service as reserve-proxy mode */
+			rcv = read(ctx.p1, buf, recv_buf_size);
+			if (rcv < 0) {
+				fprintf(stderr, "fail to read p1");
+				return NULL;
+			}
+
+			sent = send(ctx.p2, buf, recv_buf_size, 0);
+			if (sent < 0) {
+				fprintf(stderr, "fail to send p2");
+				return NULL;
+			}
+		} else {
+			if (delay_read != 0) {
+				if (delay_read < 0)
+					return NULL;
+				sleep(delay_read);
+				delay_read = 0;
+			}
+			/* read real endpoint by consumer 0 */
+			atomic_inc(&ctx.read_calls);
+			rcv = read(ctx.c2, buf, recv_buf_size);
+			if (rcv < 0 && errno != EAGAIN) {
+				fprintf(stderr, "%s fail to read c2 %d\n", __func__, errno);
+				return NULL;
+			}
+			verify_data(&check_pos, buf, rcv);
+			atomic_add(&ctx.user_read, rcv);
+		}
+	}
+
+	return NULL;
+}
+
+static void *producer(void *input)
+{
+	int off = 0, fp, need_sent, sent;
+	int file_size = ctx.file_size;
+	struct timespec ts1, ts2;
+	int target;
+	FILE *file;
+
+	file = tmpfile();
+	if (!file) {
+		fprintf(stderr, "create file for sendfile");
+		return NULL;
+	}
+
+	/* we need simple verify */
+	for (int i = 0; i < file_size; i++) {
+		if (fwrite(&snd_data[off], sizeof(char), 1, file) != 1) {
+			fprintf(stderr, "init tmpfile error");
+			return NULL;
+		}
+		if (++off >= sizeof(snd_data))
+			off = 0;
+	}
+	fflush(file);
+	fseek(file, 0, SEEK_SET);
+
+	fp = fileno(file);
+	need_sent = file_size;
+	clock_gettime(CLOCK_MONOTONIC, &ts1);
+
+	if (RXMODE_BPF_VERDICT())
+		target = ctx.c1;
+	else if (TXMODE_BPF_EGRESS())
+		target = ctx.p1;
+	else
+		target = ctx.p2;
+	set_non_block(target, true);
+	while (true) {
+		if (ctx.prod_run_time) {
+			clock_gettime(CLOCK_MONOTONIC, &ts2);
+			if (ts2.tv_sec - ts1.tv_sec > ctx.prod_run_time)
+				return NULL;
+		}
+
+		errno = 0;
+		atomic_inc(&ctx.send_calls);
+		sent = sendfile(target, fp, NULL, need_sent);
+		if (sent < 0) {
+			if (errno != EAGAIN && errno != ENOMEM && errno != ENOBUFS) {
+				fprintf(stderr, "sendfile return %d, errorno %d:%s\n",
+					sent, errno, strerror(errno));
+				return NULL;
+			}
+			continue;
+		} else if (sent < need_sent) {
+			need_sent -= sent;
+			atomic_add(&ctx.prod_send, sent);
+			continue;
+		}
+		atomic_add(&ctx.prod_send, need_sent);
+		need_sent = file_size;
+		lseek(fp, 0, SEEK_SET);
+	}
+
+	return NULL;
+}
+
+static void report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	double speed_mbs, prod_mbs, bpf_mbs, send_hz, read_hz;
+
+	prod_mbs = res->drops / 1000000.0 / (delta_ns / 1000000000.0);
+	speed_mbs = res->false_hits / 1000000.0 / (delta_ns / 1000000000.0);
+	bpf_mbs = res->hits / 1000000.0 / (delta_ns / 1000000000.0);
+	send_hz = (res->important_hits & 0xFFFFFFFF) / (delta_ns / 1000000000.0);
+	read_hz = (res->important_hits >> 32) / (delta_ns / 1000000000.0);
+
+	printf("Iter %3d (%7.3lfus): ",
+	       iter, (delta_ns - 1000000000) / 1000.0);
+	printf("Send Speed %8.3lf MB/s (%8.3lf calls/s), BPF Speed %8.3lf MB/s, "
+	       "Rcv Speed %8.3lf MB/s (%8.3lf calls/s)\n",
+	       prod_mbs, send_hz, bpf_mbs, speed_mbs, read_hz);
+}
+
+static void report_final(struct bench_res res[], int res_cnt)
+{
+	double verdict_mbs_mean = 0.0;
+	long verdict_total = 0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		verdict_mbs_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
+		verdict_total += res[i].hits / 1000000.0;
+	}
+
+	printf("Summary: total trans %8.3lu MB \u00B1 %5.3lf MB/s\n",
+	       verdict_total, verdict_mbs_mean);
+}
+
+static const struct argp_option opts[] = {
+	{ "rx-normal", ARG_FW_RX_NORMAL, NULL, 0,
+		"simple reserve-proxy mode, no bfp enabled"},
+	{ "rx-pass", ARG_FW_RX_PASS, NULL, 0,
+		"run bpf prog but no redir applied"},
+	{ "rx-strp", ARG_CTL_RX_STRP, "Byte", 0,
+		"enable strparser and set the encapsulation size"},
+	{ "rx-verdict-egress", ARG_FW_RX_VERDICT_EGRESS, NULL, 0,
+		"forward data with bpf(stream verdict)"},
+	{ "rx-verdict-ingress", ARG_FW_RX_VERDICT_INGRESS, NULL, 0,
+		"forward data with bpf(stream verdict)"},
+	{ "tx-normal", ARG_FW_TX_NORMAL, NULL, 0,
+		"simple c-s mode, no bfp enabled"},
+	{ "tx-pass", ARG_FW_TX_PASS, NULL, 0,
+		"run bpf prog but no redir applied"},
+	{ "tx-verdict-ingress", ARG_FW_TX_VERDICT_INGRESS, NULL, 0,
+		"forward msg to ingress queue of another socket"},
+	{ "tx-verdict-egress", ARG_FW_TX_VERDICT_EGRESS, NULL, 0,
+		"forward msg to egress queue of another socket"},
+	{ "delay-consumer", ARG_CONSUMER_DELAY_TIME, "SEC", 0,
+		"delay consumer start"},
+	{ "producer-duration", ARG_PRODUCER_DURATION, "SEC", 0,
+		"producer duration"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_FW_RX_NORMAL...ARG_FW_TX_VERDICT_EGRESS:
+		ctx.mode = key;
+		break;
+	case ARG_CONSUMER_DELAY_TIME:
+		ctx.delay_consumer = strtol(arg, NULL, 10);
+		break;
+	case ARG_PRODUCER_DURATION:
+		ctx.prod_run_time = strtol(arg, NULL, 10);
+		break;
+	case ARG_CTL_RX_STRP:
+		ctx.strp_size = strtol(arg, NULL, 10);
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+/* exported into benchmark runner */
+const struct argp bench_sockmap_argp = {
+	.options	= opts,
+	.parser		= parse_arg,
+};
+
+/* Benchmark performance of creating bpf local storage  */
+const struct bench bench_sockmap = {
+	.name			= "sockmap",
+	.argp			= &bench_sockmap_argp,
+	.validate		= validate,
+	.setup			= setup,
+	.producer_thread	= producer,
+	.consumer_thread	= consumer,
+	.measure		= measure,
+	.report_progress	= report_progress,
+	.report_final		= report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_strncmp.c b/tools/testing/selftests/bpf/benchs/bench_strncmp.c
new file mode 100644
index 000000000000..a5e1428fd7a0
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_strncmp.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include <argp.h>
+#include "bench.h"
+#include "strncmp_bench.skel.h"
+
+static struct strncmp_ctx {
+	struct strncmp_bench *skel;
+} ctx;
+
+static struct strncmp_args {
+	u32 cmp_str_len;
+} args = {
+	.cmp_str_len = 32,
+};
+
+enum {
+	ARG_CMP_STR_LEN = 5000,
+};
+
+static const struct argp_option opts[] = {
+	{ "cmp-str-len", ARG_CMP_STR_LEN, "CMP_STR_LEN", 0,
+	  "Set the length of compared string" },
+	{},
+};
+
+static error_t strncmp_parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case ARG_CMP_STR_LEN:
+		args.cmp_str_len = strtoul(arg, NULL, 10);
+		if (!args.cmp_str_len ||
+		    args.cmp_str_len >= sizeof(ctx.skel->bss->str)) {
+			fprintf(stderr, "Invalid cmp str len (limit %zu)\n",
+				sizeof(ctx.skel->bss->str));
+			argp_usage(state);
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_strncmp_argp = {
+	.options = opts,
+	.parser = strncmp_parse_arg,
+};
+
+static void strncmp_validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "strncmp benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void strncmp_setup(void)
+{
+	int err;
+	char *target;
+	size_t i, sz;
+
+	sz = sizeof(ctx.skel->rodata->target);
+	if (!sz || sz < sizeof(ctx.skel->bss->str)) {
+		fprintf(stderr, "invalid string size (target %zu, src %zu)\n",
+			sz, sizeof(ctx.skel->bss->str));
+		exit(1);
+	}
+
+	setup_libbpf();
+
+	ctx.skel = strncmp_bench__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	srandom(time(NULL));
+	target = ctx.skel->rodata->target;
+	for (i = 0; i < sz - 1; i++)
+		target[i] = '1' + random() % 9;
+	target[sz - 1] = '\0';
+
+	ctx.skel->rodata->cmp_str_len = args.cmp_str_len;
+
+	memcpy(ctx.skel->bss->str, target, args.cmp_str_len);
+	ctx.skel->bss->str[args.cmp_str_len] = '\0';
+	/* Make bss->str < rodata->target */
+	ctx.skel->bss->str[args.cmp_str_len - 1] -= 1;
+
+	err = strncmp_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to load skeleton\n");
+		strncmp_bench__destroy(ctx.skel);
+		exit(1);
+	}
+}
+
+static void strncmp_attach_prog(struct bpf_program *prog)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(prog);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void strncmp_no_helper_setup(void)
+{
+	strncmp_setup();
+	strncmp_attach_prog(ctx.skel->progs.strncmp_no_helper);
+}
+
+static void strncmp_helper_setup(void)
+{
+	strncmp_setup();
+	strncmp_attach_prog(ctx.skel->progs.strncmp_helper);
+}
+
+static void *strncmp_producer(void *ctx)
+{
+	while (true)
+		(void)syscall(__NR_getpgid);
+	return NULL;
+}
+
+static void strncmp_measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->hits, 0);
+}
+
+const struct bench bench_strncmp_no_helper = {
+	.name = "strncmp-no-helper",
+	.argp = &bench_strncmp_argp,
+	.validate = strncmp_validate,
+	.setup = strncmp_no_helper_setup,
+	.producer_thread = strncmp_producer,
+	.measure = strncmp_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+const struct bench bench_strncmp_helper = {
+	.name = "strncmp-helper",
+	.argp = &bench_strncmp_argp,
+	.validate = strncmp_validate,
+	.setup = strncmp_helper_setup,
+	.producer_thread = strncmp_producer,
+	.measure = strncmp_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_trigger.c b/tools/testing/selftests/bpf/benchs/bench_trigger.c
new file mode 100644
index 000000000000..34018fc3927f
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_trigger.c
@@ -0,0 +1,611 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define _GNU_SOURCE
+#include <argp.h>
+#include <unistd.h>
+#include <stdint.h>
+#include "bpf_util.h"
+#include "bench.h"
+#include "trigger_bench.skel.h"
+#include "trace_helpers.h"
+
+#define MAX_TRIG_BATCH_ITERS 1000
+
+static struct {
+	__u32 batch_iters;
+} args = {
+	.batch_iters = 100,
+};
+
+enum {
+	ARG_TRIG_BATCH_ITERS = 7000,
+};
+
+static const struct argp_option opts[] = {
+	{ "trig-batch-iters", ARG_TRIG_BATCH_ITERS, "BATCH_ITER_CNT", 0,
+		"Number of in-kernel iterations per one driver test run"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_TRIG_BATCH_ITERS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > MAX_TRIG_BATCH_ITERS) {
+			fprintf(stderr, "invalid --trig-batch-iters value (should be between %d and %d)\n",
+				1, MAX_TRIG_BATCH_ITERS);
+			argp_usage(state);
+		}
+		args.batch_iters = ret;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_trigger_batch_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+/* adjust slot shift in inc_hits() if changing */
+#define MAX_BUCKETS 256
+
+#pragma GCC diagnostic ignored "-Wattributes"
+
+/* BPF triggering benchmarks */
+static struct trigger_ctx {
+	struct trigger_bench *skel;
+	bool usermode_counters;
+	int driver_prog_fd;
+} ctx;
+
+static struct counter base_hits[MAX_BUCKETS];
+
+static __always_inline void inc_counter(struct counter *counters)
+{
+	static __thread int tid = 0;
+	unsigned slot;
+
+	if (unlikely(tid == 0))
+		tid = sys_gettid();
+
+	/* multiplicative hashing, it's fast */
+	slot = 2654435769U * tid;
+	slot >>= 24;
+
+	atomic_inc(&base_hits[slot].value); /* use highest byte as an index */
+}
+
+static long sum_and_reset_counters(struct counter *counters)
+{
+	int i;
+	long sum = 0;
+
+	for (i = 0; i < MAX_BUCKETS; i++)
+		sum += atomic_swap(&counters[i].value, 0);
+	return sum;
+}
+
+static void trigger_validate(void)
+{
+	if (env.consumer_cnt != 0) {
+		fprintf(stderr, "benchmark doesn't support consumer!\n");
+		exit(1);
+	}
+}
+
+static void *trigger_producer(void *input)
+{
+	if (ctx.usermode_counters) {
+		while (true) {
+			(void)syscall(__NR_getpgid);
+			inc_counter(base_hits);
+		}
+	} else {
+		while (true)
+			(void)syscall(__NR_getpgid);
+	}
+	return NULL;
+}
+
+static void *trigger_producer_batch(void *input)
+{
+	int fd = ctx.driver_prog_fd ?: bpf_program__fd(ctx.skel->progs.trigger_driver);
+
+	while (true)
+		bpf_prog_test_run_opts(fd, NULL);
+
+	return NULL;
+}
+
+static void trigger_measure(struct bench_res *res)
+{
+	if (ctx.usermode_counters)
+		res->hits = sum_and_reset_counters(base_hits);
+	else
+		res->hits = sum_and_reset_counters(ctx.skel->bss->hits);
+}
+
+static void setup_ctx(void)
+{
+	setup_libbpf();
+
+	ctx.skel = trigger_bench__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	/* default "driver" BPF program */
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, true);
+
+	ctx.skel->rodata->batch_iters = args.batch_iters;
+}
+
+static void load_ctx(void)
+{
+	int err;
+
+	err = trigger_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+}
+
+static void attach_bpf(struct bpf_program *prog)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(prog);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+}
+
+static void trigger_syscall_count_setup(void)
+{
+	ctx.usermode_counters = true;
+}
+
+/* Batched, staying mostly in-kernel triggering setups */
+static void trigger_kernel_count_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false);
+	bpf_program__set_autoload(ctx.skel->progs.trigger_kernel_count, true);
+	load_ctx();
+	/* override driver program */
+	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_kernel_count);
+}
+
+static void trigger_kprobe_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kprobe, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_kprobe);
+}
+
+static void trigger_kretprobe_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kretprobe, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_kretprobe);
+}
+
+static void trigger_kprobe_multi_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kprobe_multi, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_kprobe_multi);
+}
+
+static void trigger_kretprobe_multi_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_kretprobe_multi, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_kretprobe_multi);
+}
+
+static void trigger_fentry_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fentry, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_fentry);
+}
+
+static void attach_ksyms_all(struct bpf_program *empty, bool kretprobe)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	char **syms = NULL;
+	size_t cnt = 0;
+
+	/* Some recursive functions will be skipped in
+	 * bpf_get_ksyms -> skip_entry, as they can introduce sufficient
+	 * overhead. However, it's difficut to skip all the recursive
+	 * functions for a debug kernel.
+	 *
+	 * So, don't run the kprobe-multi-all and kretprobe-multi-all on
+	 * a debug kernel.
+	 */
+	if (bpf_get_ksyms(&syms, &cnt, true)) {
+		fprintf(stderr, "failed to get ksyms\n");
+		exit(1);
+	}
+
+	opts.syms = (const char **) syms;
+	opts.cnt = cnt;
+	opts.retprobe = kretprobe;
+	/* attach empty to all the kernel functions except bpf_get_numa_node_id. */
+	if (!bpf_program__attach_kprobe_multi_opts(empty, NULL, &opts)) {
+		fprintf(stderr, "failed to attach bpf_program__attach_kprobe_multi_opts to all\n");
+		exit(1);
+	}
+}
+
+static void trigger_kprobe_multi_all_setup(void)
+{
+	struct bpf_program *prog, *empty;
+
+	setup_ctx();
+	empty = ctx.skel->progs.bench_kprobe_multi_empty;
+	prog = ctx.skel->progs.bench_trigger_kprobe_multi;
+	bpf_program__set_autoload(empty, true);
+	bpf_program__set_autoload(prog, true);
+	load_ctx();
+
+	attach_ksyms_all(empty, false);
+	attach_bpf(prog);
+}
+
+static void trigger_kretprobe_multi_all_setup(void)
+{
+	struct bpf_program *prog, *empty;
+
+	setup_ctx();
+	empty = ctx.skel->progs.bench_kretprobe_multi_empty;
+	prog = ctx.skel->progs.bench_trigger_kretprobe_multi;
+	bpf_program__set_autoload(empty, true);
+	bpf_program__set_autoload(prog, true);
+	load_ctx();
+
+	attach_ksyms_all(empty, true);
+	attach_bpf(prog);
+}
+
+static void trigger_fexit_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fexit, true);
+	load_ctx();
+	attach_bpf(ctx.skel->progs.bench_trigger_fexit);
+}
+
+static void trigger_fmodret_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false);
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true);
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_fmodret, true);
+	load_ctx();
+	/* override driver program */
+	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc);
+	attach_bpf(ctx.skel->progs.bench_trigger_fmodret);
+}
+
+static void trigger_tp_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false);
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true);
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_tp, true);
+	load_ctx();
+	/* override driver program */
+	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc);
+	attach_bpf(ctx.skel->progs.bench_trigger_tp);
+}
+
+static void trigger_rawtp_setup(void)
+{
+	setup_ctx();
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver, false);
+	bpf_program__set_autoload(ctx.skel->progs.trigger_driver_kfunc, true);
+	bpf_program__set_autoload(ctx.skel->progs.bench_trigger_rawtp, true);
+	load_ctx();
+	/* override driver program */
+	ctx.driver_prog_fd = bpf_program__fd(ctx.skel->progs.trigger_driver_kfunc);
+	attach_bpf(ctx.skel->progs.bench_trigger_rawtp);
+}
+
+/* make sure call is not inlined and not avoided by compiler, so __weak and
+ * inline asm volatile in the body of the function
+ *
+ * There is a performance difference between uprobing at nop location vs other
+ * instructions. So use two different targets, one of which starts with nop
+ * and another doesn't.
+ *
+ * GCC doesn't generate stack setup preamble for these functions due to them
+ * having no input arguments and doing nothing in the body.
+ */
+__nocf_check __weak void uprobe_target_nop(void)
+{
+	asm volatile ("nop");
+}
+
+__weak void opaque_noop_func(void)
+{
+}
+
+__nocf_check __weak int uprobe_target_push(void)
+{
+	/* overhead of function call is negligible compared to uprobe
+	 * triggering, so this shouldn't affect benchmark results much
+	 */
+	opaque_noop_func();
+	return 1;
+}
+
+__nocf_check __weak void uprobe_target_ret(void)
+{
+	asm volatile ("");
+}
+
+static void *uprobe_producer_count(void *input)
+{
+	while (true) {
+		uprobe_target_nop();
+		inc_counter(base_hits);
+	}
+	return NULL;
+}
+
+static void *uprobe_producer_nop(void *input)
+{
+	while (true)
+		uprobe_target_nop();
+	return NULL;
+}
+
+static void *uprobe_producer_push(void *input)
+{
+	while (true)
+		uprobe_target_push();
+	return NULL;
+}
+
+static void *uprobe_producer_ret(void *input)
+{
+	while (true)
+		uprobe_target_ret();
+	return NULL;
+}
+
+#ifdef __x86_64__
+__nocf_check __weak void uprobe_target_nop5(void)
+{
+	asm volatile (".byte 0x0f, 0x1f, 0x44, 0x00, 0x00");
+}
+
+static void *uprobe_producer_nop5(void *input)
+{
+	while (true)
+		uprobe_target_nop5();
+	return NULL;
+}
+#endif
+
+static void usetup(bool use_retprobe, bool use_multi, void *target_addr)
+{
+	size_t uprobe_offset;
+	struct bpf_link *link;
+	int err;
+
+	setup_libbpf();
+
+	ctx.skel = trigger_bench__open();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	if (use_multi)
+		bpf_program__set_autoload(ctx.skel->progs.bench_trigger_uprobe_multi, true);
+	else
+		bpf_program__set_autoload(ctx.skel->progs.bench_trigger_uprobe, true);
+
+	err = trigger_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "failed to load skeleton\n");
+		exit(1);
+	}
+
+	uprobe_offset = get_uprobe_offset(target_addr);
+	if (use_multi) {
+		LIBBPF_OPTS(bpf_uprobe_multi_opts, opts,
+			.retprobe = use_retprobe,
+			.cnt = 1,
+			.offsets = &uprobe_offset,
+		);
+		link = bpf_program__attach_uprobe_multi(
+			ctx.skel->progs.bench_trigger_uprobe_multi,
+			-1 /* all PIDs */, "/proc/self/exe", NULL, &opts);
+		ctx.skel->links.bench_trigger_uprobe_multi = link;
+	} else {
+		link = bpf_program__attach_uprobe(ctx.skel->progs.bench_trigger_uprobe,
+						  use_retprobe,
+						  -1 /* all PIDs */,
+						  "/proc/self/exe",
+						  uprobe_offset);
+		ctx.skel->links.bench_trigger_uprobe = link;
+	}
+	if (!link) {
+		fprintf(stderr, "failed to attach %s!\n", use_multi ? "multi-uprobe" : "uprobe");
+		exit(1);
+	}
+}
+
+static void usermode_count_setup(void)
+{
+	ctx.usermode_counters = true;
+}
+
+static void uprobe_nop_setup(void)
+{
+	usetup(false, false /* !use_multi */, &uprobe_target_nop);
+}
+
+static void uretprobe_nop_setup(void)
+{
+	usetup(true, false /* !use_multi */, &uprobe_target_nop);
+}
+
+static void uprobe_push_setup(void)
+{
+	usetup(false, false /* !use_multi */, &uprobe_target_push);
+}
+
+static void uretprobe_push_setup(void)
+{
+	usetup(true, false /* !use_multi */, &uprobe_target_push);
+}
+
+static void uprobe_ret_setup(void)
+{
+	usetup(false, false /* !use_multi */, &uprobe_target_ret);
+}
+
+static void uretprobe_ret_setup(void)
+{
+	usetup(true, false /* !use_multi */, &uprobe_target_ret);
+}
+
+static void uprobe_multi_nop_setup(void)
+{
+	usetup(false, true /* use_multi */, &uprobe_target_nop);
+}
+
+static void uretprobe_multi_nop_setup(void)
+{
+	usetup(true, true /* use_multi */, &uprobe_target_nop);
+}
+
+static void uprobe_multi_push_setup(void)
+{
+	usetup(false, true /* use_multi */, &uprobe_target_push);
+}
+
+static void uretprobe_multi_push_setup(void)
+{
+	usetup(true, true /* use_multi */, &uprobe_target_push);
+}
+
+static void uprobe_multi_ret_setup(void)
+{
+	usetup(false, true /* use_multi */, &uprobe_target_ret);
+}
+
+static void uretprobe_multi_ret_setup(void)
+{
+	usetup(true, true /* use_multi */, &uprobe_target_ret);
+}
+
+#ifdef __x86_64__
+static void uprobe_nop5_setup(void)
+{
+	usetup(false, false /* !use_multi */, &uprobe_target_nop5);
+}
+
+static void uretprobe_nop5_setup(void)
+{
+	usetup(true, false /* !use_multi */, &uprobe_target_nop5);
+}
+
+static void uprobe_multi_nop5_setup(void)
+{
+	usetup(false, true /* use_multi */, &uprobe_target_nop5);
+}
+
+static void uretprobe_multi_nop5_setup(void)
+{
+	usetup(true, true /* use_multi */, &uprobe_target_nop5);
+}
+#endif
+
+const struct bench bench_trig_syscall_count = {
+	.name = "trig-syscall-count",
+	.validate = trigger_validate,
+	.setup = trigger_syscall_count_setup,
+	.producer_thread = trigger_producer,
+	.measure = trigger_measure,
+	.report_progress = hits_drops_report_progress,
+	.report_final = hits_drops_report_final,
+};
+
+/* batched (staying mostly in kernel) kprobe/fentry benchmarks */
+#define BENCH_TRIG_KERNEL(KIND, NAME)					\
+const struct bench bench_trig_##KIND = {				\
+	.name = "trig-" NAME,						\
+	.setup = trigger_##KIND##_setup,				\
+	.producer_thread = trigger_producer_batch,			\
+	.measure = trigger_measure,					\
+	.report_progress = hits_drops_report_progress,			\
+	.report_final = hits_drops_report_final,			\
+	.argp = &bench_trigger_batch_argp,				\
+}
+
+BENCH_TRIG_KERNEL(kernel_count, "kernel-count");
+BENCH_TRIG_KERNEL(kprobe, "kprobe");
+BENCH_TRIG_KERNEL(kretprobe, "kretprobe");
+BENCH_TRIG_KERNEL(kprobe_multi, "kprobe-multi");
+BENCH_TRIG_KERNEL(kretprobe_multi, "kretprobe-multi");
+BENCH_TRIG_KERNEL(fentry, "fentry");
+BENCH_TRIG_KERNEL(kprobe_multi_all, "kprobe-multi-all");
+BENCH_TRIG_KERNEL(kretprobe_multi_all, "kretprobe-multi-all");
+BENCH_TRIG_KERNEL(fexit, "fexit");
+BENCH_TRIG_KERNEL(fmodret, "fmodret");
+BENCH_TRIG_KERNEL(tp, "tp");
+BENCH_TRIG_KERNEL(rawtp, "rawtp");
+
+/* uprobe benchmarks */
+#define BENCH_TRIG_USERMODE(KIND, PRODUCER, NAME)			\
+const struct bench bench_trig_##KIND = {				\
+	.name = "trig-" NAME,						\
+	.validate = trigger_validate,					\
+	.setup = KIND##_setup,						\
+	.producer_thread = uprobe_producer_##PRODUCER,			\
+	.measure = trigger_measure,					\
+	.report_progress = hits_drops_report_progress,			\
+	.report_final = hits_drops_report_final,			\
+}
+
+BENCH_TRIG_USERMODE(usermode_count, count, "usermode-count");
+BENCH_TRIG_USERMODE(uprobe_nop, nop, "uprobe-nop");
+BENCH_TRIG_USERMODE(uprobe_push, push, "uprobe-push");
+BENCH_TRIG_USERMODE(uprobe_ret, ret, "uprobe-ret");
+BENCH_TRIG_USERMODE(uretprobe_nop, nop, "uretprobe-nop");
+BENCH_TRIG_USERMODE(uretprobe_push, push, "uretprobe-push");
+BENCH_TRIG_USERMODE(uretprobe_ret, ret, "uretprobe-ret");
+BENCH_TRIG_USERMODE(uprobe_multi_nop, nop, "uprobe-multi-nop");
+BENCH_TRIG_USERMODE(uprobe_multi_push, push, "uprobe-multi-push");
+BENCH_TRIG_USERMODE(uprobe_multi_ret, ret, "uprobe-multi-ret");
+BENCH_TRIG_USERMODE(uretprobe_multi_nop, nop, "uretprobe-multi-nop");
+BENCH_TRIG_USERMODE(uretprobe_multi_push, push, "uretprobe-multi-push");
+BENCH_TRIG_USERMODE(uretprobe_multi_ret, ret, "uretprobe-multi-ret");
+#ifdef __x86_64__
+BENCH_TRIG_USERMODE(uprobe_nop5, nop5, "uprobe-nop5");
+BENCH_TRIG_USERMODE(uretprobe_nop5, nop5, "uretprobe-nop5");
+BENCH_TRIG_USERMODE(uprobe_multi_nop5, nop5, "uprobe-multi-nop5");
+BENCH_TRIG_USERMODE(uretprobe_multi_nop5, nop5, "uretprobe-multi-nop5");
+#endif
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh b/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh
new file mode 100755
index 000000000000..8ffd385ab2f4
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_bloom_filter_map.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+header "Bloom filter map"
+for v in 2 4 8 16 40; do
+for t in 1 4 8 12 16; do
+for h in {1..10}; do
+subtitle "value_size: $v bytes, # threads: $t, # hashes: $h"
+	for e in 10000 50000 75000 100000 250000 500000 750000 1000000 2500000 5000000; do
+		printf "%'d entries -\n" $e
+		printf "\t"
+		summarize "Lookups, total operations: " \
+			"$($RUN_BENCH -p $t --nr_hash_funcs $h --nr_entries $e --value_size $v bloom-lookup)"
+		printf "\t"
+		summarize "Updates, total operations: " \
+			"$($RUN_BENCH -p $t --nr_hash_funcs $h --nr_entries $e --value_size $v bloom-update)"
+		printf "\t"
+		summarize_percentage "False positive rate: " \
+			"$($RUN_BENCH -p $t --nr_hash_funcs $h --nr_entries $e --value_size $v bloom-false-positive)"
+	done
+	printf "\n"
+done
+done
+done
+
+header "Hashmap without bloom filter vs. hashmap with bloom filter (throughput, 8 threads)"
+for v in 2 4 8 16 40; do
+for h in {1..10}; do
+subtitle "value_size: $v, # hashes: $h"
+	for e in 10000 50000 75000 100000 250000 500000 750000 1000000 2500000 5000000; do
+		printf "%'d entries -\n" $e
+		printf "\t"
+		summarize_total "Hashmap without bloom filter: " \
+			"$($RUN_BENCH --nr_hash_funcs $h --nr_entries $e --value_size $v -p 8 hashmap-without-bloom)"
+		printf "\t"
+		summarize_total "Hashmap with bloom filter: " \
+			"$($RUN_BENCH --nr_hash_funcs $h --nr_entries $e --value_size $v -p 8 hashmap-with-bloom)"
+	done
+	printf "\n"
+done
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh b/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh
new file mode 100755
index 000000000000..cd2efd3fdef3
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+nr_threads=`expr $(cat /proc/cpuinfo | grep "processor"| wc -l) - 1`
+summary=$($RUN_BENCH -p $nr_threads bpf-hashmap-full-update)
+printf "$summary"
+printf "\n"
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh b/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh
new file mode 100755
index 000000000000..d4f5f73b356b
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_bpf_loop.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+for t in 1 4 8 12 16; do
+for i in 10 100 500 1000 5000 10000 50000 100000 500000 1000000; do
+subtitle "nr_loops: $i, nr_threads: $t"
+	summarize_ops "bpf_loop: " \
+	    "$($RUN_BENCH -p $t --nr_loops $i bpf-loop)"
+	printf "\n"
+done
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_htab_mem.sh b/tools/testing/selftests/bpf/benchs/run_bench_htab_mem.sh
new file mode 100755
index 000000000000..9ff5832463a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_htab_mem.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+htab_mem()
+{
+	echo -n "per-prod-op: "
+	echo -n "$*" | sed -E "s/.* per-prod-op\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+k\/s).*/\1/"
+	echo -n -e ", avg mem: "
+	echo -n "$*" | sed -E "s/.* memory usage\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+MiB).*/\1/"
+	echo -n ", peak mem: "
+	echo "$*" | sed -E "s/.* peak memory usage\s+([0-9]+\.[0-9]+MiB).*/\1/"
+}
+
+summarize_htab_mem()
+{
+	local bench="$1"
+	local summary=$(echo $2 | tail -n1)
+
+	printf "%-20s %s\n" "$bench" "$(htab_mem $summary)"
+}
+
+htab_mem_bench()
+{
+	local name
+
+	for name in overwrite batch_add_batch_del add_del_on_diff_cpu
+	do
+		summarize_htab_mem "$name" "$($RUN_BENCH htab-mem --use-case $name -p8 "$@")"
+	done
+}
+
+header "preallocated"
+htab_mem_bench "--preallocated"
+
+header "normal bpf ma"
+htab_mem_bench
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh b/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh
new file mode 100755
index 000000000000..2eb2b513a173
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+header "Hashmap Control"
+for i in 10 1000 10000 100000 4194304; do
+subtitle "num keys: $i"
+	summarize_local_storage "hashmap (control) sequential    get: "\
+		"$(./bench --nr_maps 1 --hashmap_nr_keys_used=$i local-storage-cache-hashmap-control)"
+	printf "\n"
+done
+
+header "Local Storage"
+for i in 1 10 16 17 24 32 100 1000; do
+subtitle "num_maps: $i"
+	summarize_local_storage "local_storage cache sequential  get: "\
+		"$(./bench --nr_maps $i local-storage-cache-seq-get)"
+	summarize_local_storage "local_storage cache interleaved get: "\
+		"$(./bench --nr_maps $i local-storage-cache-int-get)"
+	printf "\n"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh b/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh
new file mode 100755
index 000000000000..3e8a969f2096
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+kthread_pid=`pgrep rcu_tasks_trace_kthread`
+
+if [ -z $kthread_pid ]; then
+	echo "error: Couldn't find rcu_tasks_trace_kthread"
+	exit 1
+fi
+
+./bench --nr_procs 15000 --kthread_pid $kthread_pid -d 600 --quiet local-storage-tasks-trace
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_rename.sh b/tools/testing/selftests/bpf/benchs/run_bench_rename.sh
new file mode 100755
index 000000000000..7b281dbe4165
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_rename.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eufo pipefail
+
+for i in base kprobe kretprobe rawtp fentry fexit
+do
+	summary=$(sudo ./bench -w2 -d5 -a rename-$i | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-)
+	printf "%-10s: %s\n" $i "$summary"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh b/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh
new file mode 100755
index 000000000000..83e05e837871
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_ringbufs.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+RUN_RB_BENCH="$RUN_BENCH -c1"
+
+header "Single-producer, parallel producer"
+for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
+	summarize $b "$($RUN_RB_BENCH $b)"
+done
+
+header "Single-producer, parallel producer, sampled notification"
+for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
+	summarize $b "$($RUN_RB_BENCH --rb-sampled $b)"
+done
+
+header "Single-producer, back-to-back mode"
+for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
+	summarize $b "$($RUN_RB_BENCH --rb-b2b $b)"
+	summarize $b-sampled "$($RUN_RB_BENCH --rb-sampled --rb-b2b $b)"
+done
+
+header "Ringbuf back-to-back, effect of sample rate"
+for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do
+	summarize "rb-sampled-$b" "$($RUN_RB_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b rb-custom)"
+done
+header "Perfbuf back-to-back, effect of sample rate"
+for b in 1 5 10 25 50 100 250 500 1000 2000 3000; do
+	summarize "pb-sampled-$b" "$($RUN_RB_BENCH --rb-b2b --rb-batch-cnt $b --rb-sampled --rb-sample-rate $b pb-custom)"
+done
+
+header "Ringbuf back-to-back, reserve+commit vs output"
+summarize "reserve" "$($RUN_RB_BENCH --rb-b2b                 rb-custom)"
+summarize "output"  "$($RUN_RB_BENCH --rb-b2b --rb-use-output rb-custom)"
+
+header "Ringbuf sampled, reserve+commit vs output"
+summarize "reserve-sampled" "$($RUN_RB_BENCH --rb-sampled                 rb-custom)"
+summarize "output-sampled"  "$($RUN_RB_BENCH --rb-sampled --rb-use-output rb-custom)"
+
+header "Single-producer, consumer/producer competing on the same CPU, low batch count"
+for b in rb-libbpf rb-custom pb-libbpf pb-custom; do
+	summarize $b "$($RUN_RB_BENCH --rb-batch-cnt 1 --rb-sample-rate 1 --prod-affinity 0 --cons-affinity 0 $b)"
+done
+
+header "Ringbuf, multi-producer contention"
+for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do
+	summarize "rb-libbpf nr_prod $b" "$($RUN_RB_BENCH -p$b --rb-batch-cnt 50 rb-libbpf)"
+done
+
+header "Ringbuf, multi-producer contention in overwrite mode, no consumer"
+for b in 1 2 3 4 8 12 16 20 24 28 32 36 40 44 48 52; do
+	summarize "rb-prod nr_prod $b" "$($RUN_BENCH -p$b --rb-batch-cnt 50 --rb-overwrite --rb-bench-producer rb-libbpf)"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh
new file mode 100755
index 000000000000..142697284b45
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_strncmp.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+for s in 1 8 64 512 2048 4095; do
+	for b in no-helper helper; do
+		summarize ${b}-${s} "$($RUN_BENCH --cmp-str-len=$s strncmp-${b})"
+	done
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh b/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh
new file mode 100755
index 000000000000..f7573708a0c3
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_trigger.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -eufo pipefail
+
+def_tests=( \
+	usermode-count kernel-count syscall-count \
+	fentry fexit fmodret \
+	rawtp tp \
+	kprobe kprobe-multi kprobe-multi-all \
+	kretprobe kretprobe-multi kretprobe-multi-all \
+)
+
+tests=("$@")
+if [ ${#tests[@]} -eq 0 ]; then
+	tests=("${def_tests[@]}")
+fi
+
+p=${PROD_CNT:-1}
+
+for t in "${tests[@]}"; do
+	summary=$(sudo ./bench -w2 -d5 -a -p$p trig-$t | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-)
+	printf "%-15s: %s\n" $t "$summary"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh b/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh
new file mode 100755
index 000000000000..03f55405484b
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_uprobes.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -eufo pipefail
+
+for i in usermode-count syscall-count {uprobe,uretprobe}-{nop,push,ret,nop5}
+do
+	summary=$(sudo ./bench -w2 -d5 -a trig-$i | tail -n1 | cut -d'(' -f1 | cut -d' ' -f3-)
+	printf "%-15s: %s\n" $i "$summary"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_common.sh b/tools/testing/selftests/bpf/benchs/run_common.sh
new file mode 100644
index 000000000000..d9f40af82006
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_common.sh
@@ -0,0 +1,92 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+RUN_BENCH="sudo ./bench -w3 -d10 -a"
+
+function header()
+{
+	local len=${#1}
+
+	printf "\n%s\n" "$1"
+	for i in $(seq 1 $len); do printf '='; done
+	printf '\n'
+}
+
+function subtitle()
+{
+	local len=${#1}
+	printf "\t%s\n" "$1"
+}
+
+function hits()
+{
+	echo "$*" | sed -E "s/.*hits\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/"
+}
+
+function drops()
+{
+	echo "$*" | sed -E "s/.*drops\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/"
+}
+
+function percentage()
+{
+	echo "$*" | sed -E "s/.*Percentage\s=\s+([0-9]+\.[0-9]+).*/\1/"
+}
+
+function ops()
+{
+	echo -n "throughput: "
+	echo -n "$*" | sed -E "s/.*throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/"
+	echo -n -e ", latency: "
+	echo "$*" | sed -E "s/.*latency\s+([0-9]+\.[0-9]+\sns\/op).*/\1/"
+}
+
+function local_storage()
+{
+	echo -n "hits throughput: "
+	echo -n "$*" | sed -E "s/.* hits throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/"
+	echo -n -e ", hits latency: "
+	echo -n "$*" | sed -E "s/.* hits latency\s+([0-9]+\.[0-9]+\sns\/op).*/\1/"
+	echo -n ", important_hits throughput: "
+	echo "$*" | sed -E "s/.*important_hits throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/"
+}
+
+function total()
+{
+	echo "$*" | sed -E "s/.*total operations\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/"
+}
+
+function summarize()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s (drops %s)\n" "$bench" "$(hits $summary)" "$(drops $summary)"
+}
+
+function summarize_percentage()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s%%\n" "$bench" "$(percentage $summary)"
+}
+
+function summarize_ops()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s\n" "$bench" "$(ops $summary)"
+}
+
+function summarize_local_storage()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s\n" "$bench" "$(local_storage $summary)"
+}
+
+function summarize_total()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s\n" "$bench" "$(total $summary)"
+}
diff --git a/tools/testing/selftests/bpf/bpf_arena_alloc.h b/tools/testing/selftests/bpf/bpf_arena_alloc.h
new file mode 100644
index 000000000000..c27678299e0c
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_arena_alloc.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#pragma once
+#include "bpf_arena_common.h"
+
+#ifndef __round_mask
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#endif
+#ifndef round_up
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#endif
+
+#ifdef __BPF__
+#define NR_CPUS (sizeof(struct cpumask) * 8)
+
+static void __arena * __arena page_frag_cur_page[NR_CPUS];
+static int __arena page_frag_cur_offset[NR_CPUS];
+
+/* Simple page_frag allocator */
+static inline void __arena* bpf_alloc(unsigned int size)
+{
+	__u64 __arena *obj_cnt;
+	__u32 cpu = bpf_get_smp_processor_id();
+	void __arena *page = page_frag_cur_page[cpu];
+	int __arena *cur_offset = &page_frag_cur_offset[cpu];
+	int offset;
+
+	size = round_up(size, 8);
+	if (size >= PAGE_SIZE - 8)
+		return NULL;
+	if (!page) {
+refill:
+		page = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+		if (!page)
+			return NULL;
+		cast_kern(page);
+		page_frag_cur_page[cpu] = page;
+		*cur_offset = PAGE_SIZE - 8;
+		obj_cnt = page + PAGE_SIZE - 8;
+		*obj_cnt = 0;
+	} else {
+		cast_kern(page);
+		obj_cnt = page + PAGE_SIZE - 8;
+	}
+
+	offset = *cur_offset - size;
+	if (offset < 0)
+		goto refill;
+
+	(*obj_cnt)++;
+	*cur_offset = offset;
+	return page + offset;
+}
+
+static inline void bpf_free(void __arena *addr)
+{
+	__u64 __arena *obj_cnt;
+
+	addr = (void __arena *)(((long)addr) & ~(PAGE_SIZE - 1));
+	obj_cnt = addr + PAGE_SIZE - 8;
+	if (--(*obj_cnt) == 0)
+		bpf_arena_free_pages(&arena, addr, 1);
+}
+#else
+static inline void __arena* bpf_alloc(unsigned int size) { return NULL; }
+static inline void bpf_free(void __arena *addr) {}
+#endif
diff --git a/tools/testing/selftests/bpf/bpf_arena_common.h b/tools/testing/selftests/bpf/bpf_arena_common.h
new file mode 100644
index 000000000000..16f8ce832004
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_arena_common.h
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#pragma once
+
+#ifndef WRITE_ONCE
+#define WRITE_ONCE(x, val) ((*(volatile typeof(x) *) &(x)) = (val))
+#endif
+
+#ifndef NUMA_NO_NODE
+#define	NUMA_NO_NODE	(-1)
+#endif
+
+#ifndef arena_container_of
+#define arena_container_of(ptr, type, member)			\
+	({							\
+		void __arena *__mptr = (void __arena *)(ptr);	\
+		((type *)(__mptr - offsetof(type, member)));	\
+	})
+#endif
+
+#ifdef __BPF__ /* when compiled as bpf program */
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE __PAGE_SIZE
+/*
+ * for older kernels try sizeof(struct genradix_node)
+ * or flexible:
+ * static inline long __bpf_page_size(void) {
+ *   return bpf_core_enum_value(enum page_size_enum___l, __PAGE_SIZE___l) ?: sizeof(struct genradix_node);
+ * }
+ * but generated code is not great.
+ */
+#endif
+
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST) && !defined(BPF_ARENA_FORCE_ASM)
+#define __arena __attribute__((address_space(1)))
+#define __arena_global __attribute__((address_space(1)))
+#define cast_kern(ptr) /* nop for bpf prog. emitted by LLVM */
+#define cast_user(ptr) /* nop for bpf prog. emitted by LLVM */
+#else
+#define __arena
+#define __arena_global SEC(".addr_space.1")
+#define cast_kern(ptr) bpf_addr_space_cast(ptr, 0, 1)
+#define cast_user(ptr) bpf_addr_space_cast(ptr, 1, 0)
+#endif
+
+void __arena* bpf_arena_alloc_pages(void *map, void __arena *addr, __u32 page_cnt,
+				    int node_id, __u64 flags) __ksym __weak;
+int bpf_arena_reserve_pages(void *map, void __arena *addr, __u32 page_cnt) __ksym __weak;
+void bpf_arena_free_pages(void *map, void __arena *ptr, __u32 page_cnt) __ksym __weak;
+
+#define arena_base(map) ((void __arena *)((struct bpf_arena *)(map))->user_vm_start)
+
+#else /* when compiled as user space code */
+
+#define __arena
+#define __arg_arena
+#define cast_kern(ptr) /* nop for user space */
+#define cast_user(ptr) /* nop for user space */
+__weak char arena[1];
+
+#ifndef offsetof
+#define offsetof(type, member)  ((unsigned long)&((type *)0)->member)
+#endif
+
+static inline void __arena* bpf_arena_alloc_pages(void *map, void *addr, __u32 page_cnt,
+						  int node_id, __u64 flags)
+{
+	return NULL;
+}
+static inline void bpf_arena_free_pages(void *map, void __arena *ptr, __u32 page_cnt)
+{
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/bpf_arena_htab.h b/tools/testing/selftests/bpf/bpf_arena_htab.h
new file mode 100644
index 000000000000..acc01a876668
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_arena_htab.h
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#pragma once
+#include <errno.h>
+#include "bpf_arena_alloc.h"
+#include "bpf_arena_list.h"
+
+struct htab_bucket {
+	struct arena_list_head head;
+};
+typedef struct htab_bucket __arena htab_bucket_t;
+
+struct htab {
+	htab_bucket_t *buckets;
+	int n_buckets;
+};
+typedef struct htab __arena htab_t;
+
+static inline htab_bucket_t *__select_bucket(htab_t *htab, __u32 hash)
+{
+	htab_bucket_t *b = htab->buckets;
+
+	cast_kern(b);
+	return &b[hash & (htab->n_buckets - 1)];
+}
+
+static inline arena_list_head_t *select_bucket(htab_t *htab, __u32 hash)
+{
+	return &__select_bucket(htab, hash)->head;
+}
+
+struct hashtab_elem {
+	int hash;
+	int key;
+	int value;
+	struct arena_list_node hash_node;
+};
+typedef struct hashtab_elem __arena hashtab_elem_t;
+
+static hashtab_elem_t *lookup_elem_raw(arena_list_head_t *head, __u32 hash, int key)
+{
+	hashtab_elem_t *l;
+
+	list_for_each_entry(l, head, hash_node)
+		if (l->hash == hash && l->key == key)
+			return l;
+
+	return NULL;
+}
+
+static int htab_hash(int key)
+{
+	return key;
+}
+
+__weak int htab_lookup_elem(htab_t *htab __arg_arena, int key)
+{
+	hashtab_elem_t *l_old;
+	arena_list_head_t *head;
+
+	cast_kern(htab);
+	head = select_bucket(htab, key);
+	l_old = lookup_elem_raw(head, htab_hash(key), key);
+	if (l_old)
+		return l_old->value;
+	return 0;
+}
+
+__weak int htab_update_elem(htab_t *htab __arg_arena, int key, int value)
+{
+	hashtab_elem_t *l_new = NULL, *l_old;
+	arena_list_head_t *head;
+
+	cast_kern(htab);
+	head = select_bucket(htab, key);
+	l_old = lookup_elem_raw(head, htab_hash(key), key);
+
+	l_new = bpf_alloc(sizeof(*l_new));
+	if (!l_new)
+		return -ENOMEM;
+	l_new->key = key;
+	l_new->hash = htab_hash(key);
+	l_new->value = value;
+
+	list_add_head(&l_new->hash_node, head);
+	if (l_old) {
+		list_del(&l_old->hash_node);
+		bpf_free(l_old);
+	}
+	return 0;
+}
+
+void htab_init(htab_t *htab)
+{
+	void __arena *buckets = bpf_arena_alloc_pages(&arena, NULL, 2, NUMA_NO_NODE, 0);
+
+	cast_user(buckets);
+	htab->buckets = buckets;
+	htab->n_buckets = 2 * PAGE_SIZE / sizeof(struct htab_bucket);
+}
diff --git a/tools/testing/selftests/bpf/bpf_arena_list.h b/tools/testing/selftests/bpf/bpf_arena_list.h
new file mode 100644
index 000000000000..e16fa7d95fcf
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_arena_list.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#pragma once
+#include "bpf_arena_common.h"
+
+struct arena_list_node;
+
+typedef struct arena_list_node __arena arena_list_node_t;
+
+struct arena_list_node {
+	arena_list_node_t *next;
+	arena_list_node_t * __arena *pprev;
+};
+
+struct arena_list_head {
+	struct arena_list_node __arena *first;
+};
+typedef struct arena_list_head __arena arena_list_head_t;
+
+#define list_entry(ptr, type, member) arena_container_of(ptr, type, member)
+
+#define list_entry_safe(ptr, type, member) \
+	({ typeof(*ptr) * ___ptr = (ptr); \
+	 ___ptr ? ({ cast_kern(___ptr); list_entry(___ptr, type, member); }) : NULL; \
+	 })
+
+#ifndef __BPF__
+static inline void *bpf_iter_num_new(struct bpf_iter_num *it, int i, int j) { return NULL; }
+static inline void bpf_iter_num_destroy(struct bpf_iter_num *it) {}
+static inline bool bpf_iter_num_next(struct bpf_iter_num *it) { return true; }
+#define cond_break ({})
+#define can_loop true
+#endif
+
+/* Safely walk link list elements. Deletion of elements is allowed. */
+#define list_for_each_entry(pos, head, member)					\
+	for (void * ___tmp = (pos = list_entry_safe((head)->first,		\
+						    typeof(*(pos)), member),	\
+			      (void *)0);					\
+	     pos && ({ ___tmp = (void *)pos->member.next; 1; }) && can_loop;    \
+	     pos = list_entry_safe((void __arena *)___tmp, typeof(*(pos)), member))
+
+static inline void list_add_head(arena_list_node_t *n, arena_list_head_t *h)
+{
+	arena_list_node_t *first = h->first, * __arena *tmp;
+
+	cast_user(first);
+	cast_kern(n);
+	WRITE_ONCE(n->next, first);
+	cast_kern(first);
+	if (first) {
+		tmp = &n->next;
+		cast_user(tmp);
+		WRITE_ONCE(first->pprev, tmp);
+	}
+	cast_user(n);
+	WRITE_ONCE(h->first, n);
+
+	tmp = &h->first;
+	cast_user(tmp);
+	cast_kern(n);
+	WRITE_ONCE(n->pprev, tmp);
+}
+
+static inline void __list_del(arena_list_node_t *n)
+{
+	arena_list_node_t *next = n->next;
+	arena_list_node_t * __arena *pprev = n->pprev;
+
+	cast_user(next);
+	cast_kern(pprev);
+	WRITE_ONCE(*pprev, next);
+	if (next) {
+		cast_user(pprev);
+		cast_kern(next);
+		WRITE_ONCE(next->pprev, pprev);
+	}
+}
+
+#define POISON_POINTER_DELTA 0
+
+#define LIST_POISON1  ((void __arena *) 0x100 + POISON_POINTER_DELTA)
+#define LIST_POISON2  ((void __arena *) 0x122 + POISON_POINTER_DELTA)
+
+static inline void list_del(arena_list_node_t *n)
+{
+	__list_del(n);
+	n->next = LIST_POISON1;
+	n->pprev = LIST_POISON2;
+}
diff --git a/tools/testing/selftests/bpf/bpf_arena_strsearch.h b/tools/testing/selftests/bpf/bpf_arena_strsearch.h
new file mode 100644
index 000000000000..c1b6eaa905bb
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_arena_strsearch.h
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#pragma once
+#include "bpf_arena_common.h"
+
+__noinline int bpf_arena_strlen(const char __arena *s __arg_arena)
+{
+	const char __arena *sc;
+
+	for (sc = s; *sc != '\0'; ++sc)
+		cond_break;
+	return sc - s;
+}
+
+/**
+ * glob_match - Shell-style pattern matching, like !fnmatch(pat, str, 0)
+ * @pat: Shell-style pattern to match, e.g. "*.[ch]".
+ * @str: String to match.  The pattern must match the entire string.
+ *
+ * Perform shell-style glob matching, returning true (1) if the match
+ * succeeds, or false (0) if it fails.  Equivalent to !fnmatch(@pat, @str, 0).
+ *
+ * Pattern metacharacters are ?, *, [ and \.
+ * (And, inside character classes, !, - and ].)
+ *
+ * This is small and simple implementation intended for device blacklists
+ * where a string is matched against a number of patterns.  Thus, it
+ * does not preprocess the patterns.  It is non-recursive, and run-time
+ * is at most quadratic: strlen(@str)*strlen(@pat).
+ *
+ * An example of the worst case is glob_match("*aaaaa", "aaaaaaaaaa");
+ * it takes 6 passes over the pattern before matching the string.
+ *
+ * Like !fnmatch(@pat, @str, 0) and unlike the shell, this does NOT
+ * treat / or leading . specially; it isn't actually used for pathnames.
+ *
+ * Note that according to glob(7) (and unlike bash), character classes
+ * are complemented by a leading !; this does not support the regex-style
+ * [^a-z] syntax.
+ *
+ * An opening bracket without a matching close is matched literally.
+ */
+__noinline bool glob_match(char const __arena *pat __arg_arena, char const __arena *str __arg_arena)
+{
+	/*
+	 * Backtrack to previous * on mismatch and retry starting one
+	 * character later in the string.  Because * matches all characters
+	 * (no exception for /), it can be easily proved that there's
+	 * never a need to backtrack multiple levels.
+	 */
+	char const __arena *back_pat = NULL, *back_str;
+
+	/*
+	 * Loop over each token (character or class) in pat, matching
+	 * it against the remaining unmatched tail of str.  Return false
+	 * on mismatch, or true after matching the trailing nul bytes.
+	 */
+	for (;;) {
+		unsigned char c = *str++;
+		unsigned char d = *pat++;
+
+		switch (d) {
+		case '?':	/* Wildcard: anything but nul */
+			if (c == '\0')
+				return false;
+			break;
+		case '*':	/* Any-length wildcard */
+			if (*pat == '\0')	/* Optimize trailing * case */
+				return true;
+			back_pat = pat;
+			back_str = --str;	/* Allow zero-length match */
+			break;
+		case '[': {	/* Character class */
+			bool match = false, inverted = (*pat == '!');
+			char const __arena *class = pat + inverted;
+			unsigned char a = *class++;
+
+			/*
+			 * Iterate over each span in the character class.
+			 * A span is either a single character a, or a
+			 * range a-b.  The first span may begin with ']'.
+			 */
+			do {
+				unsigned char b = a;
+
+				if (a == '\0')	/* Malformed */
+					goto literal;
+
+				if (class[0] == '-' && class[1] != ']') {
+					b = class[1];
+
+					if (b == '\0')
+						goto literal;
+
+					class += 2;
+					/* Any special action if a > b? */
+				}
+				match |= (a <= c && c <= b);
+				cond_break;
+			} while ((a = *class++) != ']');
+
+			if (match == inverted)
+				goto backtrack;
+			pat = class;
+			}
+			break;
+		case '\\':
+			d = *pat++;
+			__attribute__((__fallthrough__));
+		default:	/* Literal character */
+literal:
+			if (c == d) {
+				if (d == '\0')
+					return true;
+				break;
+			}
+backtrack:
+			if (c == '\0' || !back_pat)
+				return false;	/* No point continuing */
+			/* Try again from last *, one character later in str. */
+			pat = back_pat;
+			str = ++back_str;
+			break;
+		}
+		cond_break;
+	}
+	return false;
+}
diff --git a/tools/testing/selftests/bpf/bpf_atomic.h b/tools/testing/selftests/bpf/bpf_atomic.h
new file mode 100644
index 000000000000..c550e5711967
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_atomic.h
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#ifndef BPF_ATOMIC_H
+#define BPF_ATOMIC_H
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+
+extern bool CONFIG_X86_64 __kconfig __weak;
+
+/*
+ * __unqual_typeof(x) - Declare an unqualified scalar type, leaving
+ *			non-scalar types unchanged,
+ *
+ * Prefer C11 _Generic for better compile-times and simpler code. Note: 'char'
+ * is not type-compatible with 'signed char', and we define a separate case.
+ *
+ * This is copied verbatim from kernel's include/linux/compiler_types.h, but
+ * with default expression (for pointers) changed from (x) to (typeof(x)0).
+ *
+ * This is because LLVM has a bug where for lvalue (x), it does not get rid of
+ * an extra address_space qualifier, but does in case of rvalue (typeof(x)0).
+ * Hence, for pointers, we need to create an rvalue expression to get the
+ * desired type. See https://github.com/llvm/llvm-project/issues/53400.
+ */
+#define __scalar_type_to_expr_cases(type) \
+	unsigned type : (unsigned type)0, signed type : (signed type)0
+
+#define __unqual_typeof(x)                              \
+	typeof(_Generic((x),                            \
+		char: (char)0,                          \
+		__scalar_type_to_expr_cases(char),      \
+		__scalar_type_to_expr_cases(short),     \
+		__scalar_type_to_expr_cases(int),       \
+		__scalar_type_to_expr_cases(long),      \
+		__scalar_type_to_expr_cases(long long), \
+		default: (typeof(x))0))
+
+/* No-op for BPF */
+#define cpu_relax() ({})
+
+#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
+
+#define WRITE_ONCE(x, val) ((*(volatile typeof(x) *)&(x)) = (val))
+
+#define cmpxchg(p, old, new) __sync_val_compare_and_swap((p), old, new)
+
+#define try_cmpxchg(p, pold, new)                                 \
+	({                                                        \
+		__unqual_typeof(*(pold)) __o = *(pold);           \
+		__unqual_typeof(*(p)) __r = cmpxchg(p, __o, new); \
+		if (__r != __o)                                   \
+			*(pold) = __r;                            \
+		__r == __o;                                       \
+	})
+
+#define try_cmpxchg_relaxed(p, pold, new) try_cmpxchg(p, pold, new)
+
+#define try_cmpxchg_acquire(p, pold, new) try_cmpxchg(p, pold, new)
+
+#define smp_mb()                                 \
+	({                                       \
+		volatile unsigned long __val;    \
+		__sync_fetch_and_add(&__val, 0); \
+	})
+
+#define smp_rmb()                   \
+	({                          \
+		if (!CONFIG_X86_64) \
+			smp_mb();   \
+		else                \
+			barrier();  \
+	})
+
+#define smp_wmb()                   \
+	({                          \
+		if (!CONFIG_X86_64) \
+			smp_mb();   \
+		else                \
+			barrier();  \
+	})
+
+/* Control dependency provides LOAD->STORE, provide LOAD->LOAD */
+#define smp_acquire__after_ctrl_dep() ({ smp_rmb(); })
+
+#define smp_load_acquire(p)                                  \
+	({                                                   \
+		__unqual_typeof(*(p)) __v = READ_ONCE(*(p)); \
+		if (!CONFIG_X86_64)                          \
+			smp_mb();                            \
+		barrier();                                   \
+		__v;                                         \
+	})
+
+#define smp_store_release(p, val)      \
+	({                             \
+		if (!CONFIG_X86_64)    \
+			smp_mb();      \
+		barrier();             \
+		WRITE_ONCE(*(p), val); \
+	})
+
+#define smp_cond_load_relaxed_label(p, cond_expr, label)                \
+	({                                                              \
+		typeof(p) __ptr = (p);                                  \
+		__unqual_typeof(*(p)) VAL;                              \
+		for (;;) {                                              \
+			VAL = (__unqual_typeof(*(p)))READ_ONCE(*__ptr); \
+			if (cond_expr)                                  \
+				break;                                  \
+			cond_break_label(label);                        \
+			cpu_relax();                                    \
+		}                                                       \
+		(typeof(*(p)))VAL;                                      \
+	})
+
+#define smp_cond_load_acquire_label(p, cond_expr, label)                  \
+	({                                                                \
+		__unqual_typeof(*p) __val =                               \
+			smp_cond_load_relaxed_label(p, cond_expr, label); \
+		smp_acquire__after_ctrl_dep();                            \
+		(typeof(*(p)))__val;                                      \
+	})
+
+#define atomic_read(p) READ_ONCE((p)->counter)
+
+#define atomic_cond_read_relaxed_label(p, cond_expr, label) \
+	smp_cond_load_relaxed_label(&(p)->counter, cond_expr, label)
+
+#define atomic_cond_read_acquire_label(p, cond_expr, label) \
+	smp_cond_load_acquire_label(&(p)->counter, cond_expr, label)
+
+#define atomic_try_cmpxchg_relaxed(p, pold, new) \
+	try_cmpxchg_relaxed(&(p)->counter, pold, new)
+
+#define atomic_try_cmpxchg_acquire(p, pold, new) \
+	try_cmpxchg_acquire(&(p)->counter, pold, new)
+
+#endif /* BPF_ATOMIC_H */
diff --git a/tools/testing/selftests/bpf/bpf_experimental.h b/tools/testing/selftests/bpf/bpf_experimental.h
new file mode 100644
index 000000000000..2cd9165c7348
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_experimental.h
@@ -0,0 +1,656 @@
+#ifndef __BPF_EXPERIMENTAL__
+#define __BPF_EXPERIMENTAL__
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+#define __contains(name, node) __attribute__((btf_decl_tag("contains:" #name ":" #node)))
+
+/* Description
+ *	Allocates an object of the type represented by 'local_type_id' in
+ *	program BTF. User may use the bpf_core_type_id_local macro to pass the
+ *	type ID of a struct in program BTF.
+ *
+ *	The 'local_type_id' parameter must be a known constant.
+ *	The 'meta' parameter is rewritten by the verifier, no need for BPF
+ *	program to set it.
+ * Returns
+ *	A pointer to an object of the type corresponding to the passed in
+ *	'local_type_id', or NULL on failure.
+ */
+extern void *bpf_obj_new_impl(__u64 local_type_id, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_obj_new_impl */
+#define bpf_obj_new(type) ((type *)bpf_obj_new_impl(bpf_core_type_id_local(type), NULL))
+
+/* Description
+ *	Free an allocated object. All fields of the object that require
+ *	destruction will be destructed before the storage is freed.
+ *
+ *	The 'meta' parameter is rewritten by the verifier, no need for BPF
+ *	program to set it.
+ * Returns
+ *	Void.
+ */
+extern void bpf_obj_drop_impl(void *kptr, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_obj_drop_impl */
+#define bpf_obj_drop(kptr) bpf_obj_drop_impl(kptr, NULL)
+
+/* Description
+ *	Increment the refcount on a refcounted local kptr, turning the
+ *	non-owning reference input into an owning reference in the process.
+ *
+ *	The 'meta' parameter is rewritten by the verifier, no need for BPF
+ *	program to set it.
+ * Returns
+ *	An owning reference to the object pointed to by 'kptr'
+ */
+extern void *bpf_refcount_acquire_impl(void *kptr, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_refcount_acquire_impl */
+#define bpf_refcount_acquire(kptr) bpf_refcount_acquire_impl(kptr, NULL)
+
+/* Description
+ *	Add a new entry to the beginning of the BPF linked list.
+ *
+ *	The 'meta' and 'off' parameters are rewritten by the verifier, no need
+ *	for BPF programs to set them
+ * Returns
+ *	0 if the node was successfully added
+ *	-EINVAL if the node wasn't added because it's already in a list
+ */
+extern int bpf_list_push_front_impl(struct bpf_list_head *head,
+				    struct bpf_list_node *node,
+				    void *meta, __u64 off) __ksym;
+
+/* Convenience macro to wrap over bpf_list_push_front_impl */
+#define bpf_list_push_front(head, node) bpf_list_push_front_impl(head, node, NULL, 0)
+
+/* Description
+ *	Add a new entry to the end of the BPF linked list.
+ *
+ *	The 'meta' and 'off' parameters are rewritten by the verifier, no need
+ *	for BPF programs to set them
+ * Returns
+ *	0 if the node was successfully added
+ *	-EINVAL if the node wasn't added because it's already in a list
+ */
+extern int bpf_list_push_back_impl(struct bpf_list_head *head,
+				   struct bpf_list_node *node,
+				   void *meta, __u64 off) __ksym;
+
+/* Convenience macro to wrap over bpf_list_push_back_impl */
+#define bpf_list_push_back(head, node) bpf_list_push_back_impl(head, node, NULL, 0)
+
+/* Description
+ *	Remove the entry at the beginning of the BPF linked list.
+ * Returns
+ *	Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
+ */
+extern struct bpf_list_node *bpf_list_pop_front(struct bpf_list_head *head) __ksym;
+
+/* Description
+ *	Remove the entry at the end of the BPF linked list.
+ * Returns
+ *	Pointer to bpf_list_node of deleted entry, or NULL if list is empty.
+ */
+extern struct bpf_list_node *bpf_list_pop_back(struct bpf_list_head *head) __ksym;
+
+/* Description
+ *	Remove 'node' from rbtree with root 'root'
+ * Returns
+ * 	Pointer to the removed node, or NULL if 'root' didn't contain 'node'
+ */
+extern struct bpf_rb_node *bpf_rbtree_remove(struct bpf_rb_root *root,
+					     struct bpf_rb_node *node) __ksym;
+
+/* Description
+ *	Add 'node' to rbtree with root 'root' using comparator 'less'
+ *
+ *	The 'meta' and 'off' parameters are rewritten by the verifier, no need
+ *	for BPF programs to set them
+ * Returns
+ *	0 if the node was successfully added
+ *	-EINVAL if the node wasn't added because it's already in a tree
+ */
+extern int bpf_rbtree_add_impl(struct bpf_rb_root *root, struct bpf_rb_node *node,
+			       bool (less)(struct bpf_rb_node *a, const struct bpf_rb_node *b),
+			       void *meta, __u64 off) __ksym;
+
+/* Convenience macro to wrap over bpf_rbtree_add_impl */
+#define bpf_rbtree_add(head, node, less) bpf_rbtree_add_impl(head, node, less, NULL, 0)
+
+/* Description
+ *	Return the first (leftmost) node in input tree
+ * Returns
+ *	Pointer to the node, which is _not_ removed from the tree. If the tree
+ *	contains no nodes, returns NULL.
+ */
+extern struct bpf_rb_node *bpf_rbtree_first(struct bpf_rb_root *root) __ksym;
+
+/* Description
+ *	Allocates a percpu object of the type represented by 'local_type_id' in
+ *	program BTF. User may use the bpf_core_type_id_local macro to pass the
+ *	type ID of a struct in program BTF.
+ *
+ *	The 'local_type_id' parameter must be a known constant.
+ *	The 'meta' parameter is rewritten by the verifier, no need for BPF
+ *	program to set it.
+ * Returns
+ *	A pointer to a percpu object of the type corresponding to the passed in
+ *	'local_type_id', or NULL on failure.
+ */
+extern void *bpf_percpu_obj_new_impl(__u64 local_type_id, void *meta) __ksym;
+
+/* Convenience macro to wrap over bpf_percpu_obj_new_impl */
+#define bpf_percpu_obj_new(type) ((type __percpu_kptr *)bpf_percpu_obj_new_impl(bpf_core_type_id_local(type), NULL))
+
+/* Description
+ *	Free an allocated percpu object. All fields of the object that require
+ *	destruction will be destructed before the storage is freed.
+ *
+ *	The 'meta' parameter is rewritten by the verifier, no need for BPF
+ *	program to set it.
+ * Returns
+ *	Void.
+ */
+extern void bpf_percpu_obj_drop_impl(void *kptr, void *meta) __ksym;
+
+struct bpf_iter_task_vma;
+
+extern int bpf_iter_task_vma_new(struct bpf_iter_task_vma *it,
+				 struct task_struct *task,
+				 __u64 addr) __ksym;
+extern struct vm_area_struct *bpf_iter_task_vma_next(struct bpf_iter_task_vma *it) __ksym;
+extern void bpf_iter_task_vma_destroy(struct bpf_iter_task_vma *it) __ksym;
+
+/* Convenience macro to wrap over bpf_obj_drop_impl */
+#define bpf_percpu_obj_drop(kptr) bpf_percpu_obj_drop_impl(kptr, NULL)
+
+/* Description
+ *	Throw a BPF exception from the program, immediately terminating its
+ *	execution and unwinding the stack. The supplied 'cookie' parameter
+ *	will be the return value of the program when an exception is thrown,
+ *	and the default exception callback is used. Otherwise, if an exception
+ *	callback is set using the '__exception_cb(callback)' declaration tag
+ *	on the main program, the 'cookie' parameter will be the callback's only
+ *	input argument.
+ *
+ *	Thus, in case of default exception callback, 'cookie' is subjected to
+ *	constraints on the program's return value (as with R0 on exit).
+ *	Otherwise, the return value of the marked exception callback will be
+ *	subjected to the same checks.
+ *
+ *	Note that throwing an exception with lingering resources (locks,
+ *	references, etc.) will lead to a verification error.
+ *
+ *	Note that callbacks *cannot* call this helper.
+ * Returns
+ *	Never.
+ * Throws
+ *	An exception with the specified 'cookie' value.
+ */
+extern void bpf_throw(u64 cookie) __ksym;
+
+/* Description
+ *	Acquire a reference on the exe_file member field belonging to the
+ *	mm_struct that is nested within the supplied task_struct. The supplied
+ *	task_struct must be trusted/referenced.
+ * Returns
+ *	A referenced file pointer pointing to the exe_file member field of the
+ *	mm_struct nested in the supplied task_struct, or NULL.
+ */
+extern struct file *bpf_get_task_exe_file(struct task_struct *task) __ksym;
+
+/* Description
+ *	Release a reference on the supplied file. The supplied file must be
+ *	acquired.
+ */
+extern void bpf_put_file(struct file *file) __ksym;
+
+/* Description
+ *	Resolve a pathname for the supplied path and store it in the supplied
+ *	buffer. The supplied path must be trusted/referenced.
+ * Returns
+ *	A positive integer corresponding to the length of the resolved pathname,
+ *	including the NULL termination character, stored in the supplied
+ *	buffer. On error, a negative integer is returned.
+ */
+extern int bpf_path_d_path(const struct path *path, char *buf, size_t buf__sz) __ksym;
+
+/* This macro must be used to mark the exception callback corresponding to the
+ * main program. For example:
+ *
+ * int exception_cb(u64 cookie) {
+ *	return cookie;
+ * }
+ *
+ * SEC("tc")
+ * __exception_cb(exception_cb)
+ * int main_prog(struct __sk_buff *ctx) {
+ *	...
+ *	return TC_ACT_OK;
+ * }
+ *
+ * Here, exception callback for the main program will be 'exception_cb'. Note
+ * that this attribute can only be used once, and multiple exception callbacks
+ * specified for the main program will lead to verification error.
+ */
+#define __exception_cb(name) __attribute__((btf_decl_tag("exception_callback:" #name)))
+
+#define __bpf_assert_signed(x) _Generic((x), \
+    unsigned long: 0,       \
+    unsigned long long: 0,  \
+    signed long: 1,         \
+    signed long long: 1     \
+)
+
+#define __bpf_assert_check(LHS, op, RHS)								 \
+	_Static_assert(sizeof(&(LHS)), "1st argument must be an lvalue expression");			 \
+	_Static_assert(sizeof(LHS) == 8, "Only 8-byte integers are supported\n");			 \
+	_Static_assert(__builtin_constant_p(__bpf_assert_signed(LHS)), "internal static assert");	 \
+	_Static_assert(__builtin_constant_p((RHS)), "2nd argument must be a constant expression")
+
+#define __bpf_assert(LHS, op, cons, RHS, VAL)							\
+	({											\
+		(void)bpf_throw;								\
+		asm volatile ("if %[lhs] " op " %[rhs] goto +2; r1 = %[value]; call bpf_throw"	\
+			       : : [lhs] "r"(LHS), [rhs] cons(RHS), [value] "ri"(VAL) : );	\
+	})
+
+#define __bpf_assert_op_sign(LHS, op, cons, RHS, VAL, supp_sign)			\
+	({										\
+		__bpf_assert_check(LHS, op, RHS);					\
+		if (__bpf_assert_signed(LHS) && !(supp_sign))				\
+			__bpf_assert(LHS, "s" #op, cons, RHS, VAL);			\
+		else									\
+			__bpf_assert(LHS, #op, cons, RHS, VAL);				\
+	 })
+
+#define __bpf_assert_op(LHS, op, RHS, VAL, supp_sign)					\
+	({										\
+		if (sizeof(typeof(RHS)) == 8) {						\
+			const typeof(RHS) rhs_var = (RHS);				\
+			__bpf_assert_op_sign(LHS, op, "r", rhs_var, VAL, supp_sign);	\
+		} else {								\
+			__bpf_assert_op_sign(LHS, op, "i", RHS, VAL, supp_sign);	\
+		}									\
+	 })
+
+#define __cmp_cannot_be_signed(x) \
+	__builtin_strcmp(#x, "==") == 0 || __builtin_strcmp(#x, "!=") == 0 || \
+	__builtin_strcmp(#x, "&") == 0
+
+#define __is_signed_type(type) (((type)(-1)) < (type)1)
+
+#define __bpf_cmp(LHS, OP, PRED, RHS, DEFAULT)						\
+	({											\
+		__label__ l_true;								\
+		bool ret = DEFAULT;								\
+		asm volatile goto("if %[lhs] " OP " %[rhs] goto %l[l_true]"		\
+				  :: [lhs] "r"((short)LHS), [rhs] PRED (RHS) :: l_true);	\
+		ret = !DEFAULT;									\
+l_true:												\
+		ret;										\
+       })
+
+/* C type conversions coupled with comparison operator are tricky.
+ * Make sure BPF program is compiled with -Wsign-compare then
+ * __lhs OP __rhs below will catch the mistake.
+ * Be aware that we check only __lhs to figure out the sign of compare.
+ */
+#define _bpf_cmp(LHS, OP, RHS, UNLIKELY)								\
+	({											\
+		typeof(LHS) __lhs = (LHS);							\
+		typeof(RHS) __rhs = (RHS);							\
+		bool ret;									\
+		_Static_assert(sizeof(&(LHS)), "1st argument must be an lvalue expression");	\
+		(void)(__lhs OP __rhs);								\
+		if (__cmp_cannot_be_signed(OP) || !__is_signed_type(typeof(__lhs))) {		\
+			if (sizeof(__rhs) == 8)							\
+				/* "i" will truncate 64-bit constant into s32,			\
+				 * so we have to use extra register via "r".			\
+				 */								\
+				ret = __bpf_cmp(__lhs, #OP, "r", __rhs, UNLIKELY);		\
+			else									\
+				ret = __bpf_cmp(__lhs, #OP, "ri", __rhs, UNLIKELY);		\
+		} else {									\
+			if (sizeof(__rhs) == 8)							\
+				ret = __bpf_cmp(__lhs, "s"#OP, "r", __rhs, UNLIKELY);		\
+			else									\
+				ret = __bpf_cmp(__lhs, "s"#OP, "ri", __rhs, UNLIKELY);		\
+		}										\
+		ret;										\
+       })
+
+#ifndef bpf_cmp_unlikely
+#define bpf_cmp_unlikely(LHS, OP, RHS) _bpf_cmp(LHS, OP, RHS, true)
+#endif
+
+#ifndef bpf_cmp_likely
+#define bpf_cmp_likely(LHS, OP, RHS)								\
+	({											\
+		bool ret = 0;									\
+		if (__builtin_strcmp(#OP, "==") == 0)						\
+			ret = _bpf_cmp(LHS, !=, RHS, false);					\
+		else if (__builtin_strcmp(#OP, "!=") == 0)					\
+			ret = _bpf_cmp(LHS, ==, RHS, false);					\
+		else if (__builtin_strcmp(#OP, "<=") == 0)					\
+			ret = _bpf_cmp(LHS, >, RHS, false);					\
+		else if (__builtin_strcmp(#OP, "<") == 0)					\
+			ret = _bpf_cmp(LHS, >=, RHS, false);					\
+		else if (__builtin_strcmp(#OP, ">") == 0)					\
+			ret = _bpf_cmp(LHS, <=, RHS, false);					\
+		else if (__builtin_strcmp(#OP, ">=") == 0)					\
+			ret = _bpf_cmp(LHS, <, RHS, false);					\
+		else										\
+			asm volatile("r0 " #OP " invalid compare");				\
+		ret;										\
+       })
+#endif
+
+/*
+ * Note that cond_break can only be portably used in the body of a breakable
+ * construct, whereas can_loop can be used anywhere.
+ */
+#ifdef __BPF_FEATURE_MAY_GOTO
+#define can_loop					\
+	({ __label__ l_break, l_continue;		\
+	bool ret = true;				\
+	asm volatile goto("may_goto %l[l_break]"	\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: ret = false;				\
+	l_continue:;					\
+	ret;						\
+	})
+
+#define __cond_break(expr)				\
+	({ __label__ l_break, l_continue;		\
+	asm volatile goto("may_goto %l[l_break]"	\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: expr;					\
+	l_continue:;					\
+	})
+#else
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define can_loop					\
+	({ __label__ l_break, l_continue;		\
+	bool ret = true;				\
+	asm volatile goto("1:.byte 0xe5;		\
+		      .byte 0;				\
+		      .long ((%l[l_break] - 1b - 8) / 8) & 0xffff;	\
+		      .short 0"				\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: ret = false;				\
+	l_continue:;					\
+	ret;						\
+	})
+
+#define __cond_break(expr)				\
+	({ __label__ l_break, l_continue;		\
+	asm volatile goto("1:.byte 0xe5;		\
+		      .byte 0;				\
+		      .long ((%l[l_break] - 1b - 8) / 8) & 0xffff;	\
+		      .short 0"				\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: expr;					\
+	l_continue:;					\
+	})
+#else
+#define can_loop					\
+	({ __label__ l_break, l_continue;		\
+	bool ret = true;				\
+	asm volatile goto("1:.byte 0xe5;		\
+		      .byte 0;				\
+		      .long (((%l[l_break] - 1b - 8) / 8) & 0xffff) << 16;	\
+		      .short 0"				\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: ret = false;				\
+	l_continue:;					\
+	ret;						\
+	})
+
+#define __cond_break(expr)				\
+	({ __label__ l_break, l_continue;		\
+	asm volatile goto("1:.byte 0xe5;		\
+		      .byte 0;				\
+		      .long (((%l[l_break] - 1b - 8) / 8) & 0xffff) << 16;	\
+		      .short 0"				\
+		      :::: l_break);			\
+	goto l_continue;				\
+	l_break: expr;					\
+	l_continue:;					\
+	})
+#endif
+#endif
+
+#define cond_break __cond_break(break)
+#define cond_break_label(label) __cond_break(goto label)
+
+#ifndef bpf_nop_mov
+#define bpf_nop_mov(var) \
+	asm volatile("%[reg]=%[reg]"::[reg]"r"((short)var))
+#endif
+
+/* emit instruction:
+ * rX = rX .off = BPF_ADDR_SPACE_CAST .imm32 = (dst_as << 16) | src_as
+ */
+#ifndef bpf_addr_space_cast
+#define bpf_addr_space_cast(var, dst_as, src_as)\
+	asm volatile(".byte 0xBF;		\
+		     .ifc %[reg], r0;		\
+		     .byte 0x00;		\
+		     .endif;			\
+		     .ifc %[reg], r1;		\
+		     .byte 0x11;		\
+		     .endif;			\
+		     .ifc %[reg], r2;		\
+		     .byte 0x22;		\
+		     .endif;			\
+		     .ifc %[reg], r3;		\
+		     .byte 0x33;		\
+		     .endif;			\
+		     .ifc %[reg], r4;		\
+		     .byte 0x44;		\
+		     .endif;			\
+		     .ifc %[reg], r5;		\
+		     .byte 0x55;		\
+		     .endif;			\
+		     .ifc %[reg], r6;		\
+		     .byte 0x66;		\
+		     .endif;			\
+		     .ifc %[reg], r7;		\
+		     .byte 0x77;		\
+		     .endif;			\
+		     .ifc %[reg], r8;		\
+		     .byte 0x88;		\
+		     .endif;			\
+		     .ifc %[reg], r9;		\
+		     .byte 0x99;		\
+		     .endif;			\
+		     .short %[off];		\
+		     .long %[as]"		\
+		     : [reg]"+r"(var)		\
+		     : [off]"i"(BPF_ADDR_SPACE_CAST) \
+		     , [as]"i"((dst_as << 16) | src_as));
+#endif
+
+void bpf_preempt_disable(void) __weak __ksym;
+void bpf_preempt_enable(void) __weak __ksym;
+
+typedef struct {
+} __bpf_preempt_t;
+
+static inline __bpf_preempt_t __bpf_preempt_constructor(void)
+{
+	__bpf_preempt_t ret = {};
+
+	bpf_preempt_disable();
+	return ret;
+}
+static inline void __bpf_preempt_destructor(__bpf_preempt_t *t)
+{
+	bpf_preempt_enable();
+}
+#define bpf_guard_preempt() \
+	__bpf_preempt_t ___bpf_apply(preempt, __COUNTER__)			\
+	__attribute__((__unused__, __cleanup__(__bpf_preempt_destructor))) =	\
+	__bpf_preempt_constructor()
+
+/* Description
+ *	Assert that a conditional expression is true.
+ * Returns
+ *	Void.
+ * Throws
+ *	An exception with the value zero when the assertion fails.
+ */
+#define bpf_assert(cond) if (!(cond)) bpf_throw(0);
+
+/* Description
+ *	Assert that a conditional expression is true.
+ * Returns
+ *	Void.
+ * Throws
+ *	An exception with the specified value when the assertion fails.
+ */
+#define bpf_assert_with(cond, value) if (!(cond)) bpf_throw(value);
+
+/* Description
+ *	Assert that LHS is in the range [BEG, END] (inclusive of both). This
+ *	statement updates the known bounds of LHS during verification. Note
+ *	that both BEG and END must be constant values, and must fit within the
+ *	data type of LHS.
+ * Returns
+ *	Void.
+ * Throws
+ *	An exception with the value zero when the assertion fails.
+ */
+#define bpf_assert_range(LHS, BEG, END)					\
+	({								\
+		_Static_assert(BEG <= END, "BEG must be <= END");	\
+		barrier_var(LHS);					\
+		__bpf_assert_op(LHS, >=, BEG, 0, false);		\
+		__bpf_assert_op(LHS, <=, END, 0, false);		\
+	})
+
+/* Description
+ *	Assert that LHS is in the range [BEG, END] (inclusive of both). This
+ *	statement updates the known bounds of LHS during verification. Note
+ *	that both BEG and END must be constant values, and must fit within the
+ *	data type of LHS.
+ * Returns
+ *	Void.
+ * Throws
+ *	An exception with the specified value when the assertion fails.
+ */
+#define bpf_assert_range_with(LHS, BEG, END, value)			\
+	({								\
+		_Static_assert(BEG <= END, "BEG must be <= END");	\
+		barrier_var(LHS);					\
+		__bpf_assert_op(LHS, >=, BEG, value, false);		\
+		__bpf_assert_op(LHS, <=, END, value, false);		\
+	})
+
+struct bpf_iter_css_task;
+struct cgroup_subsys_state;
+extern int bpf_iter_css_task_new(struct bpf_iter_css_task *it,
+		struct cgroup_subsys_state *css, unsigned int flags) __weak __ksym;
+extern struct task_struct *bpf_iter_css_task_next(struct bpf_iter_css_task *it) __weak __ksym;
+extern void bpf_iter_css_task_destroy(struct bpf_iter_css_task *it) __weak __ksym;
+
+struct bpf_iter_task;
+extern int bpf_iter_task_new(struct bpf_iter_task *it,
+		struct task_struct *task, unsigned int flags) __weak __ksym;
+extern struct task_struct *bpf_iter_task_next(struct bpf_iter_task *it) __weak __ksym;
+extern void bpf_iter_task_destroy(struct bpf_iter_task *it) __weak __ksym;
+
+struct bpf_iter_css;
+extern int bpf_iter_css_new(struct bpf_iter_css *it,
+				struct cgroup_subsys_state *start, unsigned int flags) __weak __ksym;
+extern struct cgroup_subsys_state *bpf_iter_css_next(struct bpf_iter_css *it) __weak __ksym;
+extern void bpf_iter_css_destroy(struct bpf_iter_css *it) __weak __ksym;
+
+extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym;
+extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym;
+extern int bpf_wq_set_callback_impl(struct bpf_wq *wq,
+		int (callback_fn)(void *map, int *key, void *value),
+		unsigned int flags__k, void *aux__ign) __ksym;
+#define bpf_wq_set_callback(timer, cb, flags) \
+	bpf_wq_set_callback_impl(timer, cb, flags, NULL)
+
+struct bpf_iter_kmem_cache;
+extern int bpf_iter_kmem_cache_new(struct bpf_iter_kmem_cache *it) __weak __ksym;
+extern struct kmem_cache *bpf_iter_kmem_cache_next(struct bpf_iter_kmem_cache *it) __weak __ksym;
+extern void bpf_iter_kmem_cache_destroy(struct bpf_iter_kmem_cache *it) __weak __ksym;
+
+struct bpf_iter_dmabuf;
+extern int bpf_iter_dmabuf_new(struct bpf_iter_dmabuf *it) __weak __ksym;
+extern struct dma_buf *bpf_iter_dmabuf_next(struct bpf_iter_dmabuf *it) __weak __ksym;
+extern void bpf_iter_dmabuf_destroy(struct bpf_iter_dmabuf *it) __weak __ksym;
+
+extern int bpf_cgroup_read_xattr(struct cgroup *cgroup, const char *name__str,
+				 struct bpf_dynptr *value_p) __weak __ksym;
+
+#define PREEMPT_BITS	8
+#define SOFTIRQ_BITS	8
+#define HARDIRQ_BITS	4
+#define NMI_BITS	4
+
+#define PREEMPT_SHIFT	0
+#define SOFTIRQ_SHIFT	(PREEMPT_SHIFT + PREEMPT_BITS)
+#define HARDIRQ_SHIFT	(SOFTIRQ_SHIFT + SOFTIRQ_BITS)
+#define NMI_SHIFT	(HARDIRQ_SHIFT + HARDIRQ_BITS)
+
+#define __IRQ_MASK(x)	((1UL << (x))-1)
+
+#define SOFTIRQ_MASK	(__IRQ_MASK(SOFTIRQ_BITS) << SOFTIRQ_SHIFT)
+#define HARDIRQ_MASK	(__IRQ_MASK(HARDIRQ_BITS) << HARDIRQ_SHIFT)
+#define NMI_MASK	(__IRQ_MASK(NMI_BITS)     << NMI_SHIFT)
+
+extern bool CONFIG_PREEMPT_RT __kconfig __weak;
+#ifdef bpf_target_x86
+extern const int __preempt_count __ksym;
+#endif
+
+struct task_struct___preempt_rt {
+	int softirq_disable_cnt;
+} __attribute__((preserve_access_index));
+
+static inline int get_preempt_count(void)
+{
+#if defined(bpf_target_x86)
+	return *(int *) bpf_this_cpu_ptr(&__preempt_count);
+#elif defined(bpf_target_arm64)
+	return bpf_get_current_task_btf()->thread_info.preempt.count;
+#endif
+	return 0;
+}
+
+/* Description
+ *	Report whether it is in interrupt context. Only works on the following archs:
+ *	* x86
+ *	* arm64
+ */
+static inline int bpf_in_interrupt(void)
+{
+	struct task_struct___preempt_rt *tsk;
+	int pcnt;
+
+	pcnt = get_preempt_count();
+	if (!CONFIG_PREEMPT_RT)
+		return pcnt & (NMI_MASK | HARDIRQ_MASK | SOFTIRQ_MASK);
+
+	tsk = (void *) bpf_get_current_task_btf();
+	return (pcnt & (NMI_MASK | HARDIRQ_MASK)) |
+	       (tsk->softirq_disable_cnt & SOFTIRQ_MASK);
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/bpf_kfuncs.h b/tools/testing/selftests/bpf/bpf_kfuncs.h
new file mode 100644
index 000000000000..e0189254bb6e
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_kfuncs.h
@@ -0,0 +1,98 @@
+#ifndef __BPF_KFUNCS__
+#define __BPF_KFUNCS__
+
+struct bpf_sock_addr_kern;
+
+/* Description
+ *  Initializes an skb-type dynptr
+ * Returns
+ *  Error code
+ */
+extern int bpf_dynptr_from_skb(struct __sk_buff *skb, __u64 flags,
+    struct bpf_dynptr *ptr__uninit) __ksym __weak;
+
+/* Description
+ *  Initializes an xdp-type dynptr
+ * Returns
+ *  Error code
+ */
+extern int bpf_dynptr_from_xdp(struct xdp_md *xdp, __u64 flags,
+			       struct bpf_dynptr *ptr__uninit) __ksym __weak;
+
+extern int bpf_dynptr_from_skb_meta(struct __sk_buff *skb, __u64 flags,
+				    struct bpf_dynptr *ptr__uninit) __ksym __weak;
+
+/* Description
+ *  Obtain a read-only pointer to the dynptr's data
+ * Returns
+ *  Either a direct pointer to the dynptr data or a pointer to the user-provided
+ *  buffer if unable to obtain a direct pointer
+ */
+extern void *bpf_dynptr_slice(const struct bpf_dynptr *ptr, __u64 offset,
+			      void *buffer, __u64 buffer__szk) __ksym __weak;
+
+/* Description
+ *  Obtain a read-write pointer to the dynptr's data
+ * Returns
+ *  Either a direct pointer to the dynptr data or a pointer to the user-provided
+ *  buffer if unable to obtain a direct pointer
+ */
+extern void *bpf_dynptr_slice_rdwr(const struct bpf_dynptr *ptr, __u64 offset, void *buffer,
+				   __u64 buffer__szk) __ksym __weak;
+
+extern int bpf_dynptr_adjust(const struct bpf_dynptr *ptr, __u64 start, __u64 end) __ksym __weak;
+extern bool bpf_dynptr_is_null(const struct bpf_dynptr *ptr) __ksym __weak;
+extern bool bpf_dynptr_is_rdonly(const struct bpf_dynptr *ptr) __ksym __weak;
+extern __u64 bpf_dynptr_size(const struct bpf_dynptr *ptr) __ksym __weak;
+extern int bpf_dynptr_clone(const struct bpf_dynptr *ptr, struct bpf_dynptr *clone__init) __ksym __weak;
+
+/* Description
+ *  Modify the address of a AF_UNIX sockaddr.
+ * Returns
+ *  -EINVAL if the address size is too big or, 0 if the sockaddr was successfully modified.
+ */
+extern int bpf_sock_addr_set_sun_path(struct bpf_sock_addr_kern *sa_kern,
+				      const __u8 *sun_path, __u32 sun_path__sz) __ksym;
+
+/* Description
+ *  Allocate and configure a reqsk and link it with a listener and skb.
+ * Returns
+ *  Error code
+ */
+struct sock;
+struct bpf_tcp_req_attrs;
+extern int bpf_sk_assign_tcp_reqsk(struct __sk_buff *skb, struct sock *sk,
+				   struct bpf_tcp_req_attrs *attrs, int attrs__sz) __ksym;
+
+void *bpf_cast_to_kern_ctx(void *) __ksym;
+
+extern void *bpf_rdonly_cast(const void *obj, __u32 btf_id) __ksym __weak;
+
+extern int bpf_get_file_xattr(struct file *file, const char *name,
+			      struct bpf_dynptr *value_ptr) __ksym;
+extern int bpf_get_fsverity_digest(struct file *file, struct bpf_dynptr *digest_ptr) __ksym;
+
+extern struct bpf_key *bpf_lookup_user_key(__s32 serial, __u64 flags) __ksym;
+extern struct bpf_key *bpf_lookup_system_key(__u64 id) __ksym;
+extern void bpf_key_put(struct bpf_key *key) __ksym;
+extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr,
+				      struct bpf_dynptr *sig_ptr,
+				      struct bpf_key *trusted_keyring) __ksym;
+
+extern bool bpf_session_is_return(void) __ksym __weak;
+extern __u64 *bpf_session_cookie(void) __ksym __weak;
+
+struct dentry;
+/* Description
+ *  Returns xattr of a dentry
+ * Returns
+ *  Error code
+ */
+extern int bpf_get_dentry_xattr(struct dentry *dentry, const char *name,
+			      struct bpf_dynptr *value_ptr) __ksym __weak;
+
+extern int bpf_set_dentry_xattr(struct dentry *dentry, const char *name__str,
+				const struct bpf_dynptr *value_p, int flags) __ksym __weak;
+extern int bpf_remove_dentry_xattr(struct dentry *dentry, const char *name__str) __ksym __weak;
+
+#endif
diff --git a/tools/testing/selftests/bpf/bpf_legacy.h b/tools/testing/selftests/bpf/bpf_legacy.h
new file mode 100644
index 000000000000..bc4555a003a7
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_legacy.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#ifndef __BPF_LEGACY__
+#define __BPF_LEGACY__
+
+#if __GNUC__ && !__clang__
+/* Functions to emit BPF_LD_ABS and BPF_LD_IND instructions.  We
+ * provide the "standard" names as synonyms of the corresponding GCC
+ * builtins. Note how the SKB argument is ignored.
+ */
+#define load_byte(skb, off) __builtin_bpf_load_byte(off)
+#define load_half(skb, off) __builtin_bpf_load_half(off)
+#define load_word(skb, off) __builtin_bpf_load_word(off)
+#else
+/* llvm builtin functions that eBPF C program may use to
+ * emit BPF_LD_ABS and BPF_LD_IND instructions
+ */
+unsigned long long load_byte(void *skb, unsigned long long off) asm("llvm.bpf.load.byte");
+unsigned long long load_half(void *skb, unsigned long long off) asm("llvm.bpf.load.half");
+unsigned long long load_word(void *skb, unsigned long long off) asm("llvm.bpf.load.word");
+#endif
+
+#endif
+
diff --git a/tools/testing/selftests/bpf/bpf_rand.h b/tools/testing/selftests/bpf/bpf_rand.h
new file mode 100644
index 000000000000..59bf3e1a9371
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_rand.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BPF_RAND__
+#define __BPF_RAND__
+
+#include <stdint.h>
+#include <stdlib.h>
+#include <time.h>
+
+static inline uint64_t bpf_rand_mask(uint64_t mask)
+{
+	return (((uint64_t)(uint32_t)rand()) |
+	        ((uint64_t)(uint32_t)rand() << 32)) & mask;
+}
+
+#define bpf_rand_ux(x, m)			\
+static inline uint64_t bpf_rand_u##x(int shift)	\
+{						\
+	return bpf_rand_mask((m)) << shift;	\
+}
+
+bpf_rand_ux( 8,               0xffULL)
+bpf_rand_ux(16,             0xffffULL)
+bpf_rand_ux(24,           0xffffffULL)
+bpf_rand_ux(32,         0xffffffffULL)
+bpf_rand_ux(40,       0xffffffffffULL)
+bpf_rand_ux(48,     0xffffffffffffULL)
+bpf_rand_ux(56,   0xffffffffffffffULL)
+bpf_rand_ux(64, 0xffffffffffffffffULL)
+
+static inline void bpf_semi_rand_init(void)
+{
+	srand(time(NULL));
+}
+
+static inline uint64_t bpf_semi_rand_get(void)
+{
+	switch (rand() % 39) {
+	case  0: return 0x000000ff00000000ULL | bpf_rand_u8(0);
+	case  1: return 0xffffffff00000000ULL | bpf_rand_u16(0);
+	case  2: return 0x00000000ffff0000ULL | bpf_rand_u16(0);
+	case  3: return 0x8000000000000000ULL | bpf_rand_u32(0);
+	case  4: return 0x00000000f0000000ULL | bpf_rand_u32(0);
+	case  5: return 0x0000000100000000ULL | bpf_rand_u24(0);
+	case  6: return 0x800ff00000000000ULL | bpf_rand_u32(0);
+	case  7: return 0x7fffffff00000000ULL | bpf_rand_u32(0);
+	case  8: return 0xffffffffffffff00ULL ^ bpf_rand_u32(24);
+	case  9: return 0xffffffffffffff00ULL | bpf_rand_u8(0);
+	case 10: return 0x0000000010000000ULL | bpf_rand_u32(0);
+	case 11: return 0xf000000000000000ULL | bpf_rand_u8(0);
+	case 12: return 0x0000f00000000000ULL | bpf_rand_u8(8);
+	case 13: return 0x000000000f000000ULL | bpf_rand_u8(16);
+	case 14: return 0x0000000000000f00ULL | bpf_rand_u8(32);
+	case 15: return 0x00fff00000000f00ULL | bpf_rand_u8(48);
+	case 16: return 0x00007fffffffffffULL ^ bpf_rand_u32(1);
+	case 17: return 0xffff800000000000ULL | bpf_rand_u8(4);
+	case 18: return 0xffff800000000000ULL | bpf_rand_u8(20);
+	case 19: return (0xffffffc000000000ULL + 0x80000ULL) | bpf_rand_u32(0);
+	case 20: return (0xffffffc000000000ULL - 0x04000000ULL) | bpf_rand_u32(0);
+	case 21: return 0x0000000000000000ULL | bpf_rand_u8(55) | bpf_rand_u32(20);
+	case 22: return 0xffffffffffffffffULL ^ bpf_rand_u8(3) ^ bpf_rand_u32(40);
+	case 23: return 0x0000000000000000ULL | bpf_rand_u8(bpf_rand_u8(0) % 64);
+	case 24: return 0x0000000000000000ULL | bpf_rand_u16(bpf_rand_u8(0) % 64);
+	case 25: return 0xffffffffffffffffULL ^ bpf_rand_u8(bpf_rand_u8(0) % 64);
+	case 26: return 0xffffffffffffffffULL ^ bpf_rand_u40(bpf_rand_u8(0) % 64);
+	case 27: return 0x0000800000000000ULL;
+	case 28: return 0x8000000000000000ULL;
+	case 29: return 0x0000000000000000ULL;
+	case 30: return 0xffffffffffffffffULL;
+	case 31: return bpf_rand_u16(bpf_rand_u8(0) % 64);
+	case 32: return bpf_rand_u24(bpf_rand_u8(0) % 64);
+	case 33: return bpf_rand_u32(bpf_rand_u8(0) % 64);
+	case 34: return bpf_rand_u40(bpf_rand_u8(0) % 64);
+	case 35: return bpf_rand_u48(bpf_rand_u8(0) % 64);
+	case 36: return bpf_rand_u56(bpf_rand_u8(0) % 64);
+	case 37: return bpf_rand_u64(bpf_rand_u8(0) % 64);
+	default: return bpf_rand_u64(0);
+	}
+}
+
+#endif /* __BPF_RAND__ */
diff --git a/tools/testing/selftests/bpf/bpf_sockopt_helpers.h b/tools/testing/selftests/bpf/bpf_sockopt_helpers.h
new file mode 100644
index 000000000000..11f3a0976174
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_sockopt_helpers.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+
+int get_set_sk_priority(void *ctx)
+{
+	int prio;
+
+	/* Verify that context allows calling bpf_getsockopt and
+	 * bpf_setsockopt by reading and writing back socket
+	 * priority.
+	 */
+
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0;
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h
new file mode 100644
index 000000000000..4bc2d25f33e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/bpf_util.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BPF_UTIL__
+#define __BPF_UTIL__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <syscall.h>
+#include <bpf/libbpf.h> /* libbpf_num_possible_cpus */
+
+static inline unsigned int bpf_num_possible_cpus(void)
+{
+	int possible_cpus = libbpf_num_possible_cpus();
+
+	if (possible_cpus < 0) {
+		printf("Failed to get # of possible cpus: '%s'!\n",
+		       strerror(-possible_cpus));
+		exit(1);
+	}
+	return possible_cpus;
+}
+
+/* Copy up to sz - 1 bytes from zero-terminated src string and ensure that dst
+ * is zero-terminated string no matter what (unless sz == 0, in which case
+ * it's a no-op). It's conceptually close to FreeBSD's strlcpy(), but differs
+ * in what is returned. Given this is internal helper, it's trivial to extend
+ * this, when necessary. Use this instead of strncpy inside libbpf source code.
+ */
+static inline void bpf_strlcpy(char *dst, const char *src, size_t sz)
+{
+	size_t i;
+
+	if (sz == 0)
+		return;
+
+	sz--;
+	for (i = 0; i < sz && src[i]; i++)
+		dst[i] = src[i];
+	dst[i] = '\0';
+}
+
+#define __bpf_percpu_val_align	__attribute__((__aligned__(8)))
+
+#define BPF_DECLARE_PERCPU(type, name)				\
+	struct { type v; /* padding */ } __bpf_percpu_val_align	\
+		name[bpf_num_possible_cpus()]
+#define bpf_percpu(name, cpu) name[(cpu)].v
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#ifndef sizeof_field
+#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
+#endif
+
+#ifndef offsetofend
+#define offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER)	+ sizeof_field(TYPE, MEMBER))
+#endif
+
+/* Availability of gettid across glibc versions is hit-and-miss, therefore
+ * fallback to syscall in this macro and use it everywhere.
+ */
+#ifndef sys_gettid
+#define sys_gettid() syscall(SYS_gettid)
+#endif
+
+/* and poison usage to ensure it does not creep back in. */
+#pragma GCC poison gettid
+
+#ifndef ENOTSUPP
+#define ENOTSUPP 524
+#endif
+
+#endif /* __BPF_UTIL__ */
diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c
new file mode 100644
index 000000000000..1c1c2c26690a
--- /dev/null
+++ b/tools/testing/selftests/bpf/btf_helpers.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <stdio.h>
+#include <errno.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
+#include "test_progs.h"
+
+static const char * const btf_kind_str_mapping[] = {
+	[BTF_KIND_UNKN]		= "UNKNOWN",
+	[BTF_KIND_INT]		= "INT",
+	[BTF_KIND_PTR]		= "PTR",
+	[BTF_KIND_ARRAY]	= "ARRAY",
+	[BTF_KIND_STRUCT]	= "STRUCT",
+	[BTF_KIND_UNION]	= "UNION",
+	[BTF_KIND_ENUM]		= "ENUM",
+	[BTF_KIND_FWD]		= "FWD",
+	[BTF_KIND_TYPEDEF]	= "TYPEDEF",
+	[BTF_KIND_VOLATILE]	= "VOLATILE",
+	[BTF_KIND_CONST]	= "CONST",
+	[BTF_KIND_RESTRICT]	= "RESTRICT",
+	[BTF_KIND_FUNC]		= "FUNC",
+	[BTF_KIND_FUNC_PROTO]	= "FUNC_PROTO",
+	[BTF_KIND_VAR]		= "VAR",
+	[BTF_KIND_DATASEC]	= "DATASEC",
+	[BTF_KIND_FLOAT]	= "FLOAT",
+	[BTF_KIND_DECL_TAG]	= "DECL_TAG",
+	[BTF_KIND_TYPE_TAG]	= "TYPE_TAG",
+	[BTF_KIND_ENUM64]	= "ENUM64",
+};
+
+static const char *btf_kind_str(__u16 kind)
+{
+	if (kind > BTF_KIND_ENUM64)
+		return "UNKNOWN";
+	return btf_kind_str_mapping[kind];
+}
+
+static const char *btf_int_enc_str(__u8 encoding)
+{
+	switch (encoding) {
+	case 0:
+		return "(none)";
+	case BTF_INT_SIGNED:
+		return "SIGNED";
+	case BTF_INT_CHAR:
+		return "CHAR";
+	case BTF_INT_BOOL:
+		return "BOOL";
+	default:
+		return "UNKN";
+	}
+}
+
+static const char *btf_var_linkage_str(__u32 linkage)
+{
+	switch (linkage) {
+	case BTF_VAR_STATIC:
+		return "static";
+	case BTF_VAR_GLOBAL_ALLOCATED:
+		return "global-alloc";
+	default:
+		return "(unknown)";
+	}
+}
+
+static const char *btf_func_linkage_str(const struct btf_type *t)
+{
+	switch (btf_vlen(t)) {
+	case BTF_FUNC_STATIC:
+		return "static";
+	case BTF_FUNC_GLOBAL:
+		return "global";
+	case BTF_FUNC_EXTERN:
+		return "extern";
+	default:
+		return "(unknown)";
+	}
+}
+
+static const char *btf_str(const struct btf *btf, __u32 off)
+{
+	if (!off)
+		return "(anon)";
+	return btf__str_by_offset(btf, off) ?: "(invalid)";
+}
+
+int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id)
+{
+	const struct btf_type *t;
+	int kind, i;
+	__u32 vlen;
+
+	t = btf__type_by_id(btf, id);
+	if (!t)
+		return -EINVAL;
+
+	vlen = btf_vlen(t);
+	kind = btf_kind(t);
+
+	fprintf(out, "[%u] %s '%s'", id, btf_kind_str(kind), btf_str(btf, t->name_off));
+
+	switch (kind) {
+	case BTF_KIND_INT:
+		fprintf(out, " size=%u bits_offset=%u nr_bits=%u encoding=%s",
+			t->size, btf_int_offset(t), btf_int_bits(t),
+			btf_int_enc_str(btf_int_encoding(t)));
+		break;
+	case BTF_KIND_PTR:
+	case BTF_KIND_CONST:
+	case BTF_KIND_VOLATILE:
+	case BTF_KIND_RESTRICT:
+	case BTF_KIND_TYPEDEF:
+	case BTF_KIND_TYPE_TAG:
+		fprintf(out, " type_id=%u", t->type);
+		break;
+	case BTF_KIND_ARRAY: {
+		const struct btf_array *arr = btf_array(t);
+
+		fprintf(out, " type_id=%u index_type_id=%u nr_elems=%u",
+			arr->type, arr->index_type, arr->nelems);
+		break;
+	}
+	case BTF_KIND_STRUCT:
+	case BTF_KIND_UNION: {
+		const struct btf_member *m = btf_members(t);
+
+		fprintf(out, " size=%u vlen=%u", t->size, vlen);
+		for (i = 0; i < vlen; i++, m++) {
+			__u32 bit_off, bit_sz;
+
+			bit_off = btf_member_bit_offset(t, i);
+			bit_sz = btf_member_bitfield_size(t, i);
+			fprintf(out, "\n\t'%s' type_id=%u bits_offset=%u",
+				btf_str(btf, m->name_off), m->type, bit_off);
+			if (bit_sz)
+				fprintf(out, " bitfield_size=%u", bit_sz);
+		}
+		break;
+	}
+	case BTF_KIND_ENUM: {
+		const struct btf_enum *v = btf_enum(t);
+		const char *fmt_str;
+
+		fmt_str = btf_kflag(t) ? "\n\t'%s' val=%d" : "\n\t'%s' val=%u";
+		fprintf(out, " encoding=%s size=%u vlen=%u",
+			btf_kflag(t) ? "SIGNED" : "UNSIGNED", t->size, vlen);
+		for (i = 0; i < vlen; i++, v++) {
+			fprintf(out, fmt_str,
+				btf_str(btf, v->name_off), v->val);
+		}
+		break;
+	}
+	case BTF_KIND_ENUM64: {
+		const struct btf_enum64 *v = btf_enum64(t);
+		const char *fmt_str;
+
+		fmt_str = btf_kflag(t) ? "\n\t'%s' val=%lld" : "\n\t'%s' val=%llu";
+
+		fprintf(out, " encoding=%s size=%u vlen=%u",
+			btf_kflag(t) ? "SIGNED" : "UNSIGNED", t->size, vlen);
+		for (i = 0; i < vlen; i++, v++) {
+			fprintf(out, fmt_str,
+				btf_str(btf, v->name_off),
+				((__u64)v->val_hi32 << 32) | v->val_lo32);
+		}
+		break;
+	}
+	case BTF_KIND_FWD:
+		fprintf(out, " fwd_kind=%s", btf_kflag(t) ? "union" : "struct");
+		break;
+	case BTF_KIND_FUNC:
+		fprintf(out, " type_id=%u linkage=%s", t->type, btf_func_linkage_str(t));
+		break;
+	case BTF_KIND_FUNC_PROTO: {
+		const struct btf_param *p = btf_params(t);
+
+		fprintf(out, " ret_type_id=%u vlen=%u", t->type, vlen);
+		for (i = 0; i < vlen; i++, p++) {
+			fprintf(out, "\n\t'%s' type_id=%u",
+				btf_str(btf, p->name_off), p->type);
+		}
+		break;
+	}
+	case BTF_KIND_VAR:
+		fprintf(out, " type_id=%u, linkage=%s",
+			t->type, btf_var_linkage_str(btf_var(t)->linkage));
+		break;
+	case BTF_KIND_DATASEC: {
+		const struct btf_var_secinfo *v = btf_var_secinfos(t);
+
+		fprintf(out, " size=%u vlen=%u", t->size, vlen);
+		for (i = 0; i < vlen; i++, v++) {
+			fprintf(out, "\n\ttype_id=%u offset=%u size=%u",
+				v->type, v->offset, v->size);
+		}
+		break;
+	}
+	case BTF_KIND_FLOAT:
+		fprintf(out, " size=%u", t->size);
+		break;
+	case BTF_KIND_DECL_TAG:
+		fprintf(out, " type_id=%u component_idx=%d",
+			t->type, btf_decl_tag(t)->component_idx);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+/* Print raw BTF type dump into a local buffer and return string pointer back.
+ * Buffer *will* be overwritten by subsequent btf_type_raw_dump() calls
+ */
+const char *btf_type_raw_dump(const struct btf *btf, int type_id)
+{
+	static char buf[16 * 1024];
+	FILE *buf_file;
+
+	buf_file = fmemopen(buf, sizeof(buf) - 1, "w");
+	if (!buf_file) {
+		fprintf(stderr, "Failed to open memstream: %d\n", errno);
+		return NULL;
+	}
+
+	fprintf_btf_type_raw(buf_file, btf, type_id);
+	fflush(buf_file);
+	fclose(buf_file);
+
+	return buf;
+}
+
+int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[])
+{
+	int i;
+	bool ok = true;
+
+	ASSERT_EQ(btf__type_cnt(btf) - 1, nr_types, "btf_nr_types");
+
+	for (i = 1; i <= nr_types; i++) {
+		if (!ASSERT_STREQ(btf_type_raw_dump(btf, i), exp_types[i - 1], "raw_dump"))
+			ok = false;
+	}
+
+	return ok;
+}
+
+static void btf_dump_printf(void *ctx, const char *fmt, va_list args)
+{
+	vfprintf(ctx, fmt, args);
+}
+
+/* Print BTF-to-C dump into a local buffer and return string pointer back.
+ * Buffer *will* be overwritten by subsequent btf_type_raw_dump() calls
+ */
+const char *btf_type_c_dump(const struct btf *btf)
+{
+	static char buf[16 * 1024];
+	FILE *buf_file;
+	struct btf_dump *d = NULL;
+	int err, i;
+
+	buf_file = fmemopen(buf, sizeof(buf) - 1, "w");
+	if (!buf_file) {
+		fprintf(stderr, "Failed to open memstream: %d\n", errno);
+		return NULL;
+	}
+
+	d = btf_dump__new(btf, btf_dump_printf, buf_file, NULL);
+	if (libbpf_get_error(d)) {
+		fprintf(stderr, "Failed to create btf_dump instance: %ld\n", libbpf_get_error(d));
+		goto err_out;
+	}
+
+	for (i = 1; i < btf__type_cnt(btf); i++) {
+		err = btf_dump__dump_type(d, i);
+		if (err) {
+			fprintf(stderr, "Failed to dump type [%d]: %d\n", i, err);
+			goto err_out;
+		}
+	}
+
+	btf_dump__free(d);
+	fflush(buf_file);
+	fclose(buf_file);
+	return buf;
+err_out:
+	btf_dump__free(d);
+	fclose(buf_file);
+	return NULL;
+}
diff --git a/tools/testing/selftests/bpf/btf_helpers.h b/tools/testing/selftests/bpf/btf_helpers.h
new file mode 100644
index 000000000000..295c0137d9bd
--- /dev/null
+++ b/tools/testing/selftests/bpf/btf_helpers.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+#ifndef __BTF_HELPERS_H
+#define __BTF_HELPERS_H
+
+#include <stdio.h>
+#include <bpf/btf.h>
+
+int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id);
+const char *btf_type_raw_dump(const struct btf *btf, int type_id);
+int btf_validate_raw(struct btf *btf, int nr_types, const char *exp_types[]);
+
+#define VALIDATE_RAW_BTF(btf, raw_types...)				\
+	btf_validate_raw(btf,						\
+			 sizeof((const char *[]){raw_types})/sizeof(void *),\
+			 (const char *[]){raw_types})
+
+const char *btf_type_c_dump(const struct btf *btf);
+#endif
diff --git a/tools/testing/selftests/bpf/cap_helpers.c b/tools/testing/selftests/bpf/cap_helpers.c
new file mode 100644
index 000000000000..98f840c3a38f
--- /dev/null
+++ b/tools/testing/selftests/bpf/cap_helpers.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "cap_helpers.h"
+
+/* Avoid including <sys/capability.h> from the libcap-devel package,
+ * so directly declare them here and use them from glibc.
+ */
+int capget(cap_user_header_t header, cap_user_data_t data);
+int capset(cap_user_header_t header, const cap_user_data_t data);
+
+int cap_enable_effective(__u64 caps, __u64 *old_caps)
+{
+	struct __user_cap_data_struct data[_LINUX_CAPABILITY_U32S_3];
+	struct __user_cap_header_struct hdr = {
+		.version = _LINUX_CAPABILITY_VERSION_3,
+	};
+	__u32 cap0 = caps;
+	__u32 cap1 = caps >> 32;
+	int err;
+
+	err = capget(&hdr, data);
+	if (err)
+		return -errno;
+
+	if (old_caps)
+		*old_caps = (__u64)(data[1].effective) << 32 | data[0].effective;
+
+	if ((data[0].effective & cap0) == cap0 &&
+	    (data[1].effective & cap1) == cap1)
+		return 0;
+
+	data[0].effective |= cap0;
+	data[1].effective |= cap1;
+	err = capset(&hdr, data);
+	if (err)
+		return -errno;
+
+	return 0;
+}
+
+int cap_disable_effective(__u64 caps, __u64 *old_caps)
+{
+	struct __user_cap_data_struct data[_LINUX_CAPABILITY_U32S_3];
+	struct __user_cap_header_struct hdr = {
+		.version = _LINUX_CAPABILITY_VERSION_3,
+	};
+	__u32 cap0 = caps;
+	__u32 cap1 = caps >> 32;
+	int err;
+
+	err = capget(&hdr, data);
+	if (err)
+		return -errno;
+
+	if (old_caps)
+		*old_caps = (__u64)(data[1].effective) << 32 | data[0].effective;
+
+	if (!(data[0].effective & cap0) && !(data[1].effective & cap1))
+		return 0;
+
+	data[0].effective &= ~cap0;
+	data[1].effective &= ~cap1;
+	err = capset(&hdr, data);
+	if (err)
+		return -errno;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/cap_helpers.h b/tools/testing/selftests/bpf/cap_helpers.h
new file mode 100644
index 000000000000..8dcb28557f76
--- /dev/null
+++ b/tools/testing/selftests/bpf/cap_helpers.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CAP_HELPERS_H
+#define __CAP_HELPERS_H
+
+#include <linux/types.h>
+#include <linux/capability.h>
+#include <errno.h>
+
+#ifndef CAP_PERFMON
+#define CAP_PERFMON		38
+#endif
+
+#ifndef CAP_BPF
+#define CAP_BPF			39
+#endif
+
+int cap_enable_effective(__u64 caps, __u64 *old_caps);
+int cap_disable_effective(__u64 caps, __u64 *old_caps);
+
+#endif
diff --git a/tools/testing/selftests/bpf/cgroup_getset_retval_hooks.h b/tools/testing/selftests/bpf/cgroup_getset_retval_hooks.h
new file mode 100644
index 000000000000..a525d3544fd7
--- /dev/null
+++ b/tools/testing/selftests/bpf/cgroup_getset_retval_hooks.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+BPF_RETVAL_HOOK(ingress, "cgroup_skb/ingress", __sk_buff, -EINVAL)
+BPF_RETVAL_HOOK(egress, "cgroup_skb/egress", __sk_buff, -EINVAL)
+BPF_RETVAL_HOOK(sock_create, "cgroup/sock_create", bpf_sock, 0)
+BPF_RETVAL_HOOK(sock_ops, "sockops", bpf_sock_ops, -EINVAL)
+BPF_RETVAL_HOOK(dev, "cgroup/dev", bpf_cgroup_dev_ctx, 0)
+BPF_RETVAL_HOOK(bind4, "cgroup/bind4", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(bind6, "cgroup/bind6", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(connect4, "cgroup/connect4", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(connect6, "cgroup/connect6", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(post_bind4, "cgroup/post_bind4", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(post_bind6, "cgroup/post_bind6", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(sendmsg4, "cgroup/sendmsg4", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(sendmsg6, "cgroup/sendmsg6", bpf_sock_addr, 0)
+BPF_RETVAL_HOOK(sysctl, "cgroup/sysctl", bpf_sysctl, 0)
+BPF_RETVAL_HOOK(recvmsg4, "cgroup/recvmsg4", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(recvmsg6, "cgroup/recvmsg6", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(getsockopt, "cgroup/getsockopt", bpf_sockopt, 0)
+BPF_RETVAL_HOOK(setsockopt, "cgroup/setsockopt", bpf_sockopt, 0)
+BPF_RETVAL_HOOK(getpeername4, "cgroup/getpeername4", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(getpeername6, "cgroup/getpeername6", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(getsockname4, "cgroup/getsockname4", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(getsockname6, "cgroup/getsockname6", bpf_sock_addr, -EINVAL)
+BPF_RETVAL_HOOK(sock_release, "cgroup/sock_release", bpf_sock, 0)
diff --git a/tools/testing/selftests/bpf/cgroup_helpers.c b/tools/testing/selftests/bpf/cgroup_helpers.c
new file mode 100644
index 000000000000..20cede4db3ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/cgroup_helpers.c
@@ -0,0 +1,751 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/xattr.h>
+#include <linux/limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/sched.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <ftw.h>
+
+#include "cgroup_helpers.h"
+#include "bpf_util.h"
+
+/*
+ * To avoid relying on the system setup, when setup_cgroup_env is called
+ * we create a new mount namespace, and cgroup namespace. The cgroupv2
+ * root is mounted at CGROUP_MOUNT_PATH. Unfortunately, most people don't
+ * have cgroupv2 enabled at this point in time. It's easier to create our
+ * own mount namespace and manage it ourselves. We assume /mnt exists.
+ *
+ * Related cgroupv1 helpers are named *classid*(), since we only use the
+ * net_cls controller for tagging net_cls.classid. We assume the default
+ * mount under /sys/fs/cgroup/net_cls, which should be the case for the
+ * vast majority of users.
+ */
+
+#define WALK_FD_LIMIT			16
+
+#define CGROUP_MOUNT_PATH		"/mnt"
+#define CGROUP_MOUNT_DFLT		"/sys/fs/cgroup"
+#define NETCLS_MOUNT_PATH		CGROUP_MOUNT_DFLT "/net_cls"
+#define CGROUP_WORK_DIR			"/cgroup-test-work-dir"
+
+#define format_cgroup_path_pid(buf, path, pid) \
+	snprintf(buf, sizeof(buf), "%s%s%d%s", CGROUP_MOUNT_PATH, \
+	CGROUP_WORK_DIR, pid, path)
+
+#define format_cgroup_path(buf, path) \
+	format_cgroup_path_pid(buf, path, getpid())
+
+#define format_parent_cgroup_path(buf, path) \
+	format_cgroup_path_pid(buf, path, getppid())
+
+#define format_classid_path_pid(buf, pid)				\
+	snprintf(buf, sizeof(buf), "%s%s%d", NETCLS_MOUNT_PATH,	\
+		 CGROUP_WORK_DIR, pid)
+
+#define format_classid_path(buf)	\
+	format_classid_path_pid(buf, getpid())
+
+static __thread bool cgroup_workdir_mounted;
+
+static void __cleanup_cgroup_environment(void);
+
+static int __enable_controllers(const char *cgroup_path, const char *controllers)
+{
+	char path[PATH_MAX + 1];
+	char enable[PATH_MAX + 1];
+	char *c, *c2;
+	int fd, cfd;
+	ssize_t len;
+
+	/* If not controllers are passed, enable all available controllers */
+	if (!controllers) {
+		snprintf(path, sizeof(path), "%s/cgroup.controllers",
+			 cgroup_path);
+		fd = open(path, O_RDONLY);
+		if (fd < 0) {
+			log_err("Opening cgroup.controllers: %s", path);
+			return 1;
+		}
+		len = read(fd, enable, sizeof(enable) - 1);
+		if (len < 0) {
+			close(fd);
+			log_err("Reading cgroup.controllers: %s", path);
+			return 1;
+		} else if (len == 0) { /* No controllers to enable */
+			close(fd);
+			return 0;
+		}
+		enable[len] = 0;
+		close(fd);
+	} else {
+		bpf_strlcpy(enable, controllers, sizeof(enable));
+	}
+
+	snprintf(path, sizeof(path), "%s/cgroup.subtree_control", cgroup_path);
+	cfd = open(path, O_RDWR);
+	if (cfd < 0) {
+		log_err("Opening cgroup.subtree_control: %s", path);
+		return 1;
+	}
+
+	for (c = strtok_r(enable, " ", &c2); c; c = strtok_r(NULL, " ", &c2)) {
+		if (dprintf(cfd, "+%s\n", c) <= 0) {
+			log_err("Enabling controller %s: %s", c, path);
+			close(cfd);
+			return 1;
+		}
+	}
+	close(cfd);
+	return 0;
+}
+
+/**
+ * enable_controllers() - Enable cgroup v2 controllers
+ * @relative_path: The cgroup path, relative to the workdir
+ * @controllers: List of controllers to enable in cgroup.controllers format
+ *
+ *
+ * Enable given cgroup v2 controllers, if @controllers is NULL, enable all
+ * available controllers.
+ *
+ * If successful, 0 is returned.
+ */
+int enable_controllers(const char *relative_path, const char *controllers)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_path, relative_path);
+	return __enable_controllers(cgroup_path, controllers);
+}
+
+static int __write_cgroup_file(const char *cgroup_path, const char *file,
+			       const char *buf)
+{
+	char file_path[PATH_MAX + 1];
+	int fd;
+
+	snprintf(file_path, sizeof(file_path), "%s/%s", cgroup_path, file);
+	fd = open(file_path, O_RDWR);
+	if (fd < 0) {
+		log_err("Opening %s", file_path);
+		return 1;
+	}
+
+	if (dprintf(fd, "%s", buf) <= 0) {
+		log_err("Writing to %s", file_path);
+		close(fd);
+		return 1;
+	}
+	close(fd);
+	return 0;
+}
+
+/**
+ * write_cgroup_file() - Write to a cgroup file
+ * @relative_path: The cgroup path, relative to the workdir
+ * @file: The name of the file in cgroupfs to write to
+ * @buf: Buffer to write to the file
+ *
+ * Write to a file in the given cgroup's directory.
+ *
+ * If successful, 0 is returned.
+ */
+int write_cgroup_file(const char *relative_path, const char *file,
+		      const char *buf)
+{
+	char cgroup_path[PATH_MAX - 24];
+
+	format_cgroup_path(cgroup_path, relative_path);
+	return __write_cgroup_file(cgroup_path, file, buf);
+}
+
+/**
+ * write_cgroup_file_parent() - Write to a cgroup file in the parent process
+ *                              workdir
+ * @relative_path: The cgroup path, relative to the parent process workdir
+ * @file: The name of the file in cgroupfs to write to
+ * @buf: Buffer to write to the file
+ *
+ * Write to a file in the given cgroup's directory under the parent process
+ * workdir.
+ *
+ * If successful, 0 is returned.
+ */
+int write_cgroup_file_parent(const char *relative_path, const char *file,
+			     const char *buf)
+{
+	char cgroup_path[PATH_MAX - 24];
+
+	format_parent_cgroup_path(cgroup_path, relative_path);
+	return __write_cgroup_file(cgroup_path, file, buf);
+}
+
+/**
+ * setup_cgroup_environment() - Setup the cgroup environment
+ *
+ * After calling this function, cleanup_cgroup_environment should be called
+ * once testing is complete.
+ *
+ * This function will print an error to stderr and return 1 if it is unable
+ * to setup the cgroup environment. If setup is successful, 0 is returned.
+ */
+int setup_cgroup_environment(void)
+{
+	char cgroup_workdir[PATH_MAX - 24];
+
+	format_cgroup_path(cgroup_workdir, "");
+
+	if (mkdir(CGROUP_MOUNT_PATH, 0777) && errno != EEXIST) {
+		log_err("mkdir mount");
+		return 1;
+	}
+
+	if (unshare(CLONE_NEWNS)) {
+		log_err("unshare");
+		return 1;
+	}
+
+	if (mount("none", "/", NULL, MS_REC | MS_PRIVATE, NULL)) {
+		log_err("mount fakeroot");
+		return 1;
+	}
+
+	if (mount("none", CGROUP_MOUNT_PATH, "cgroup2", 0, NULL) && errno != EBUSY) {
+		log_err("mount cgroup2");
+		return 1;
+	}
+	cgroup_workdir_mounted = true;
+
+	/* Cleanup existing failed runs, now that the environment is setup */
+	__cleanup_cgroup_environment();
+
+	if (mkdir(cgroup_workdir, 0777) && errno != EEXIST) {
+		log_err("mkdir cgroup work dir");
+		return 1;
+	}
+
+	/* Enable all available controllers to increase test coverage */
+	if (__enable_controllers(CGROUP_MOUNT_PATH, NULL) ||
+	    __enable_controllers(cgroup_workdir, NULL))
+		return 1;
+
+	return 0;
+}
+
+static int nftwfunc(const char *filename, const struct stat *statptr,
+		    int fileflags, struct FTW *pfwt)
+{
+	if ((fileflags & FTW_D) && rmdir(filename))
+		log_err("Removing cgroup: %s", filename);
+	return 0;
+}
+
+static int join_cgroup_from_top(const char *cgroup_path)
+{
+	char cgroup_procs_path[PATH_MAX + 1];
+	pid_t pid = getpid();
+	int fd, rc = 0;
+
+	snprintf(cgroup_procs_path, sizeof(cgroup_procs_path),
+		 "%s/cgroup.procs", cgroup_path);
+
+	fd = open(cgroup_procs_path, O_WRONLY);
+	if (fd < 0) {
+		log_err("Opening Cgroup Procs: %s", cgroup_procs_path);
+		return 1;
+	}
+
+	if (dprintf(fd, "%d\n", pid) < 0) {
+		log_err("Joining Cgroup");
+		rc = 1;
+	}
+
+	close(fd);
+	return rc;
+}
+
+/**
+ * join_cgroup() - Join a cgroup
+ * @relative_path: The cgroup path, relative to the workdir, to join
+ *
+ * This function expects a cgroup to already be created, relative to the cgroup
+ * work dir, and it joins it. For example, passing "/my-cgroup" as the path
+ * would actually put the calling process into the cgroup
+ * "/cgroup-test-work-dir/my-cgroup"
+ *
+ * On success, it returns 0, otherwise on failure it returns 1.
+ */
+int join_cgroup(const char *relative_path)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_path, relative_path);
+	return join_cgroup_from_top(cgroup_path);
+}
+
+/**
+ * join_root_cgroup() - Join the root cgroup
+ *
+ * This function joins the root cgroup.
+ *
+ * On success, it returns 0, otherwise on failure it returns 1.
+ */
+int join_root_cgroup(void)
+{
+	return join_cgroup_from_top(CGROUP_MOUNT_PATH);
+}
+
+/**
+ * join_parent_cgroup() - Join a cgroup in the parent process workdir
+ * @relative_path: The cgroup path, relative to parent process workdir, to join
+ *
+ * See join_cgroup().
+ *
+ * On success, it returns 0, otherwise on failure it returns 1.
+ */
+int join_parent_cgroup(const char *relative_path)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_parent_cgroup_path(cgroup_path, relative_path);
+	return join_cgroup_from_top(cgroup_path);
+}
+
+/**
+ * set_cgroup_xattr() - Set xattr on a cgroup dir
+ * @relative_path: The cgroup path, relative to the workdir, to set xattr
+ * @name: xattr name
+ * @value: xattr value
+ *
+ * This function set xattr on cgroup dir.
+ *
+ * On success, it returns 0, otherwise on failure it returns -1.
+ */
+int set_cgroup_xattr(const char *relative_path,
+		     const char *name,
+		     const char *value)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_path, relative_path);
+	return setxattr(cgroup_path, name, value, strlen(value) + 1, 0);
+}
+
+/**
+ * __cleanup_cgroup_environment() - Delete temporary cgroups
+ *
+ * This is a helper for cleanup_cgroup_environment() that is responsible for
+ * deletion of all temporary cgroups that have been created during the test.
+ */
+static void __cleanup_cgroup_environment(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_workdir, "");
+	join_cgroup_from_top(CGROUP_MOUNT_PATH);
+	nftw(cgroup_workdir, nftwfunc, WALK_FD_LIMIT, FTW_DEPTH | FTW_MOUNT);
+}
+
+/**
+ * cleanup_cgroup_environment() - Cleanup Cgroup Testing Environment
+ *
+ * This is an idempotent function to delete all temporary cgroups that
+ * have been created during the test and unmount the cgroup testing work
+ * directory.
+ *
+ * At call time, it moves the calling process to the root cgroup, and then
+ * runs the deletion process. It is idempotent, and should not fail, unless
+ * a process is lingering.
+ *
+ * On failure, it will print an error to stderr, and try to continue.
+ */
+void cleanup_cgroup_environment(void)
+{
+	__cleanup_cgroup_environment();
+	if (cgroup_workdir_mounted && umount(CGROUP_MOUNT_PATH))
+		log_err("umount cgroup2");
+	cgroup_workdir_mounted = false;
+}
+
+/**
+ * get_root_cgroup() - Get the FD of the root cgroup
+ *
+ * On success, it returns the file descriptor. On failure, it returns -1.
+ * If there is a failure, it prints the error to stderr.
+ */
+int get_root_cgroup(void)
+{
+	int fd;
+
+	fd = open(CGROUP_MOUNT_PATH, O_RDONLY);
+	if (fd < 0) {
+		log_err("Opening root cgroup");
+		return -1;
+	}
+	return fd;
+}
+
+/*
+ * remove_cgroup() - Remove a cgroup
+ * @relative_path: The cgroup path, relative to the workdir, to remove
+ *
+ * This function expects a cgroup to already be created, relative to the cgroup
+ * work dir. It also expects the cgroup doesn't have any children or live
+ * processes and it removes the cgroup.
+ *
+ * On failure, it will print an error to stderr.
+ */
+void remove_cgroup(const char *relative_path)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_path, relative_path);
+	if (rmdir(cgroup_path))
+		log_err("rmdiring cgroup %s .. %s", relative_path, cgroup_path);
+}
+
+/*
+ * remove_cgroup_pid() - Remove a cgroup setup by process identified by PID
+ * @relative_path: The cgroup path, relative to the workdir, to remove
+ * @pid: PID to be used to find cgroup_path
+ *
+ * This function expects a cgroup to already be created, relative to the cgroup
+ * work dir. It also expects the cgroup doesn't have any children or live
+ * processes and it removes the cgroup.
+ *
+ * On failure, it will print an error to stderr.
+ */
+void remove_cgroup_pid(const char *relative_path, int pid)
+{
+	char cgroup_path[PATH_MAX + 1];
+
+	format_cgroup_path_pid(cgroup_path, relative_path, pid);
+	if (rmdir(cgroup_path))
+		log_err("rmdiring cgroup %s .. %s", relative_path, cgroup_path);
+}
+
+/**
+ * create_and_get_cgroup() - Create a cgroup, relative to workdir, and get the FD
+ * @relative_path: The cgroup path, relative to the workdir, to join
+ *
+ * This function creates a cgroup under the top level workdir and returns the
+ * file descriptor. It is idempotent.
+ *
+ * On success, it returns the file descriptor. On failure it returns -1.
+ * If there is a failure, it prints the error to stderr.
+ */
+int create_and_get_cgroup(const char *relative_path)
+{
+	char cgroup_path[PATH_MAX + 1];
+	int fd;
+
+	format_cgroup_path(cgroup_path, relative_path);
+	if (mkdir(cgroup_path, 0777) && errno != EEXIST) {
+		log_err("mkdiring cgroup %s .. %s", relative_path, cgroup_path);
+		return -1;
+	}
+
+	fd = open(cgroup_path, O_RDONLY);
+	if (fd < 0) {
+		log_err("Opening Cgroup");
+		return -1;
+	}
+
+	return fd;
+}
+
+/**
+ * get_cgroup_id_from_path - Get cgroup id for a particular cgroup path
+ * @cgroup_workdir: The absolute cgroup path
+ *
+ * On success, it returns the cgroup id. On failure it returns 0,
+ * which is an invalid cgroup id.
+ * If there is a failure, it prints the error to stderr.
+ */
+static unsigned long long get_cgroup_id_from_path(const char *cgroup_workdir)
+{
+	int dirfd, err, flags, mount_id, fhsize;
+	union {
+		unsigned long long cgid;
+		unsigned char raw_bytes[8];
+	} id;
+	struct file_handle *fhp, *fhp2;
+	unsigned long long ret = 0;
+
+	dirfd = AT_FDCWD;
+	flags = 0;
+	fhsize = sizeof(*fhp);
+	fhp = calloc(1, fhsize);
+	if (!fhp) {
+		log_err("calloc");
+		return 0;
+	}
+	err = name_to_handle_at(dirfd, cgroup_workdir, fhp, &mount_id, flags);
+	if (err >= 0 || fhp->handle_bytes != 8) {
+		log_err("name_to_handle_at");
+		goto free_mem;
+	}
+
+	fhsize = sizeof(struct file_handle) + fhp->handle_bytes;
+	fhp2 = realloc(fhp, fhsize);
+	if (!fhp2) {
+		log_err("realloc");
+		goto free_mem;
+	}
+	err = name_to_handle_at(dirfd, cgroup_workdir, fhp2, &mount_id, flags);
+	fhp = fhp2;
+	if (err < 0) {
+		log_err("name_to_handle_at");
+		goto free_mem;
+	}
+
+	memcpy(id.raw_bytes, fhp->f_handle, 8);
+	ret = id.cgid;
+
+free_mem:
+	free(fhp);
+	return ret;
+}
+
+unsigned long long get_cgroup_id(const char *relative_path)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_cgroup_path(cgroup_workdir, relative_path);
+	return get_cgroup_id_from_path(cgroup_workdir);
+}
+
+int cgroup_setup_and_join(const char *path) {
+	int cg_fd;
+
+	if (setup_cgroup_environment()) {
+		fprintf(stderr, "Failed to setup cgroup environment\n");
+		return -EINVAL;
+	}
+
+	cg_fd = create_and_get_cgroup(path);
+	if (cg_fd < 0) {
+		fprintf(stderr, "Failed to create test cgroup\n");
+		cleanup_cgroup_environment();
+		return cg_fd;
+	}
+
+	if (join_cgroup(path)) {
+		fprintf(stderr, "Failed to join cgroup\n");
+		cleanup_cgroup_environment();
+		return -EINVAL;
+	}
+	return cg_fd;
+}
+
+/**
+ * setup_classid_environment() - Setup the cgroupv1 net_cls environment
+ *
+ * This function should only be called in a custom mount namespace, e.g.
+ * created by running setup_cgroup_environment.
+ *
+ * After calling this function, cleanup_classid_environment should be called
+ * once testing is complete.
+ *
+ * This function will print an error to stderr and return 1 if it is unable
+ * to setup the cgroup environment. If setup is successful, 0 is returned.
+ */
+int setup_classid_environment(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_classid_path(cgroup_workdir);
+
+	if (mount("tmpfs", CGROUP_MOUNT_DFLT, "tmpfs", 0, NULL) &&
+	    errno != EBUSY) {
+		log_err("mount cgroup base");
+		return 1;
+	}
+
+	if (mkdir(NETCLS_MOUNT_PATH, 0777) && errno != EEXIST) {
+		log_err("mkdir cgroup net_cls");
+		return 1;
+	}
+
+	if (mount("net_cls", NETCLS_MOUNT_PATH, "cgroup", 0, "net_cls")) {
+		if (errno != EBUSY) {
+			log_err("mount cgroup net_cls");
+			return 1;
+		}
+
+		if (rmdir(NETCLS_MOUNT_PATH)) {
+			log_err("rmdir cgroup net_cls");
+			return 1;
+		}
+		if (umount(CGROUP_MOUNT_DFLT)) {
+			log_err("umount cgroup base");
+			return 1;
+		}
+	}
+
+	cleanup_classid_environment();
+
+	if (mkdir(cgroup_workdir, 0777) && errno != EEXIST) {
+		log_err("mkdir cgroup work dir");
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * set_classid() - Set a cgroupv1 net_cls classid
+ *
+ * Writes the classid into the cgroup work dir's net_cls.classid
+ * file in order to later on trigger socket tagging.
+ *
+ * We leverage the current pid as the classid, ensuring unique identification.
+ *
+ * On success, it returns 0, otherwise on failure it returns 1. If there
+ * is a failure, it prints the error to stderr.
+ */
+int set_classid(void)
+{
+	char cgroup_workdir[PATH_MAX - 42];
+	char cgroup_classid_path[PATH_MAX + 1];
+	int fd, rc = 0;
+
+	format_classid_path(cgroup_workdir);
+	snprintf(cgroup_classid_path, sizeof(cgroup_classid_path),
+		 "%s/net_cls.classid", cgroup_workdir);
+
+	fd = open(cgroup_classid_path, O_WRONLY);
+	if (fd < 0) {
+		log_err("Opening cgroup classid: %s", cgroup_classid_path);
+		return 1;
+	}
+
+	if (dprintf(fd, "%u\n", getpid()) < 0) {
+		log_err("Setting cgroup classid");
+		rc = 1;
+	}
+
+	close(fd);
+	return rc;
+}
+
+/**
+ * join_classid() - Join a cgroupv1 net_cls classid
+ *
+ * This function expects the cgroup work dir to be already created, as we
+ * join it here. This causes the process sockets to be tagged with the given
+ * net_cls classid.
+ *
+ * On success, it returns 0, otherwise on failure it returns 1.
+ */
+int join_classid(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_classid_path(cgroup_workdir);
+	return join_cgroup_from_top(cgroup_workdir);
+}
+
+/**
+ * cleanup_classid_environment() - Cleanup the cgroupv1 net_cls environment
+ *
+ * At call time, it moves the calling process to the root cgroup, and then
+ * runs the deletion process.
+ *
+ * On failure, it will print an error to stderr, and try to continue.
+ */
+void cleanup_classid_environment(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_classid_path(cgroup_workdir);
+	join_cgroup_from_top(NETCLS_MOUNT_PATH);
+	nftw(cgroup_workdir, nftwfunc, WALK_FD_LIMIT, FTW_DEPTH | FTW_MOUNT);
+}
+
+/**
+ * get_classid_cgroup_id - Get the cgroup id of a net_cls cgroup
+ */
+unsigned long long get_classid_cgroup_id(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_classid_path(cgroup_workdir);
+	return get_cgroup_id_from_path(cgroup_workdir);
+}
+
+/**
+ * get_cgroup1_hierarchy_id - Retrieves the ID of a cgroup1 hierarchy from the cgroup1 subsys name.
+ * @subsys_name: The cgroup1 subsys name, which can be retrieved from /proc/self/cgroup. It can be
+ * a named cgroup like "name=systemd", a controller name like "net_cls", or multi-controllers like
+ * "net_cls,net_prio".
+ */
+int get_cgroup1_hierarchy_id(const char *subsys_name)
+{
+	char *c, *c2, *c3, *c4;
+	bool found = false;
+	char line[1024];
+	FILE *file;
+	int i, id;
+
+	if (!subsys_name)
+		return -1;
+
+	file = fopen("/proc/self/cgroup", "r");
+	if (!file) {
+		log_err("fopen /proc/self/cgroup");
+		return -1;
+	}
+
+	while (fgets(line, 1024, file)) {
+		i = 0;
+		for (c = strtok_r(line, ":", &c2); c && i < 2; c = strtok_r(NULL, ":", &c2)) {
+			if (i == 0) {
+				id = strtol(c, NULL, 10);
+			} else if (i == 1) {
+				if (!strcmp(c, subsys_name)) {
+					found = true;
+					break;
+				}
+
+				/* Multiple subsystems may share one single mount point */
+				for (c3 = strtok_r(c, ",", &c4); c3;
+				     c3 = strtok_r(NULL, ",", &c4)) {
+					if (!strcmp(c, subsys_name)) {
+						found = true;
+						break;
+					}
+				}
+			}
+			i++;
+		}
+		if (found)
+			break;
+	}
+	fclose(file);
+	return found ? id : -1;
+}
+
+/**
+ * open_classid() - Open a cgroupv1 net_cls classid
+ *
+ * This function expects the cgroup work dir to be already created, as we
+ * open it here.
+ *
+ * On success, it returns the file descriptor. On failure it returns -1.
+ */
+int open_classid(void)
+{
+	char cgroup_workdir[PATH_MAX + 1];
+
+	format_classid_path(cgroup_workdir);
+	return open(cgroup_workdir, O_RDONLY);
+}
diff --git a/tools/testing/selftests/bpf/cgroup_helpers.h b/tools/testing/selftests/bpf/cgroup_helpers.h
new file mode 100644
index 000000000000..3857304be874
--- /dev/null
+++ b/tools/testing/selftests/bpf/cgroup_helpers.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __CGROUP_HELPERS_H
+#define __CGROUP_HELPERS_H
+
+#include <errno.h>
+#include <string.h>
+
+#define clean_errno() (errno == 0 ? "None" : strerror(errno))
+#define log_err(MSG, ...) fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
+	__FILE__, __LINE__, clean_errno(), ##__VA_ARGS__)
+
+/* cgroupv2 related */
+int enable_controllers(const char *relative_path, const char *controllers);
+int write_cgroup_file(const char *relative_path, const char *file,
+		      const char *buf);
+int write_cgroup_file_parent(const char *relative_path, const char *file,
+			     const char *buf);
+int cgroup_setup_and_join(const char *relative_path);
+int get_root_cgroup(void);
+int create_and_get_cgroup(const char *relative_path);
+void remove_cgroup(const char *relative_path);
+void remove_cgroup_pid(const char *relative_path, int pid);
+unsigned long long get_cgroup_id(const char *relative_path);
+int get_cgroup1_hierarchy_id(const char *subsys_name);
+
+int join_cgroup(const char *relative_path);
+int join_root_cgroup(void);
+int join_parent_cgroup(const char *relative_path);
+
+int set_cgroup_xattr(const char *relative_path,
+		     const char *name,
+		     const char *value);
+
+int setup_cgroup_environment(void);
+void cleanup_cgroup_environment(void);
+
+/* cgroupv1 related */
+int set_classid(void);
+int join_classid(void);
+unsigned long long get_classid_cgroup_id(void);
+int open_classid(void);
+
+int setup_classid_environment(void);
+void cleanup_classid_environment(void);
+
+#endif /* __CGROUP_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/cgroup_tcp_skb.h b/tools/testing/selftests/bpf/cgroup_tcp_skb.h
new file mode 100644
index 000000000000..7f6b24f102fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/cgroup_tcp_skb.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+/* Define states of a socket to tracking messages sending to and from the
+ * socket.
+ *
+ * These states are based on rfc9293 with some modifications to support
+ * tracking of messages sent out from a socket. For example, when a SYN is
+ * received, a new socket is transiting to the SYN_RECV state defined in
+ * rfc9293. But, we put it in SYN_RECV_SENDING_SYN_ACK state and when
+ * SYN-ACK is sent out, it moves to SYN_RECV state. With this modification,
+ * we can track the message sent out from a socket.
+ */
+
+#ifndef __CGROUP_TCP_SKB_H__
+#define __CGROUP_TCP_SKB_H__
+
+enum {
+	INIT,
+	CLOSED,
+	SYN_SENT,
+	SYN_RECV_SENDING_SYN_ACK,
+	SYN_RECV,
+	ESTABLISHED,
+	FIN_WAIT1,
+	FIN_WAIT2,
+	CLOSE_WAIT_SENDING_ACK,
+	CLOSE_WAIT,
+	CLOSING,
+	LAST_ACK,
+	TIME_WAIT_SENDING_ACK,
+	TIME_WAIT,
+};
+
+#endif /* __CGROUP_TCP_SKB_H__ */
diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config
new file mode 100644
index 000000000000..558839e3c185
--- /dev/null
+++ b/tools/testing/selftests/bpf/config
@@ -0,0 +1,133 @@
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BPF=y
+CONFIG_BPF_EVENTS=y
+CONFIG_BPF_JIT=y
+CONFIG_BPF_KPROBE_OVERRIDE=y
+CONFIG_BPF_LIRC_MODE2=y
+CONFIG_BPF_LSM=y
+CONFIG_BPF_STREAM_PARSER=y
+CONFIG_BPF_SYSCALL=y
+# CONFIG_BPF_UNPRIV_DEFAULT_OFF is not set
+CONFIG_CGROUP_BPF=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_SHA256=y
+CONFIG_CRYPTO_USER_API=y
+CONFIG_CRYPTO_USER_API_HASH=y
+CONFIG_CRYPTO_USER_API_SKCIPHER=y
+CONFIG_CRYPTO_SKCIPHER=y
+CONFIG_CRYPTO_ECB=y
+CONFIG_CRYPTO_AES=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DUMMY=y
+CONFIG_DYNAMIC_FTRACE=y
+CONFIG_FPROBE=y
+CONFIG_FTRACE_SYSCALLS=y
+CONFIG_FUNCTION_ERROR_INJECTION=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_FS_VERITY=y
+CONFIG_GENEVE=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_IMA=y
+CONFIG_IMA_READ_POLICY=y
+CONFIG_IMA_WRITE_POLICY=y
+CONFIG_INET_ESP=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_RAW=y
+CONFIG_IP_NF_TARGET_SYNPROXY=y
+CONFIG_IPV6=y
+CONFIG_IPV6_FOU=y
+CONFIG_IPV6_FOU_TUNNEL=y
+CONFIG_IPV6_GRE=y
+CONFIG_IPV6_SEG6_BPF=y
+CONFIG_IPV6_SIT=y
+CONFIG_IPV6_TUNNEL=y
+CONFIG_KEYS=y
+CONFIG_LIRC=y
+CONFIG_LIVEPATCH=y
+CONFIG_LWTUNNEL=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULES=y
+CONFIG_MODVERSIONS=y
+CONFIG_MPLS=y
+CONFIG_MPLS_IPTUNNEL=y
+CONFIG_MPLS_ROUTING=y
+CONFIG_MPTCP=y
+CONFIG_NET_ACT_GACT=y
+CONFIG_NET_ACT_MIRRED=y
+CONFIG_NET_ACT_SKBMOD=y
+CONFIG_NET_CLS=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_CLS_BPF=y
+CONFIG_NET_CLS_FLOWER=y
+CONFIG_NET_CLS_MATCHALL=y
+CONFIG_NET_FOU=y
+CONFIG_NET_FOU_IP_TUNNELS=y
+CONFIG_NET_IPGRE=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPIP=y
+CONFIG_NET_MPLS_GSO=y
+CONFIG_NET_SCH_BPF=y
+CONFIG_NET_SCH_FQ=y
+CONFIG_NET_SCH_INGRESS=y
+CONFIG_NET_SCH_HTB=y
+CONFIG_NET_SCHED=y
+CONFIG_NETDEVSIM=y
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NETFILTER_SYNPROXY=y
+CONFIG_NETFILTER_XT_CONNMARK=y
+CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NETFILTER_XT_TARGET_CT=y
+CONFIG_NETKIT=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_DEFRAG_IPV4=y
+CONFIG_NF_DEFRAG_IPV6=y
+CONFIG_NF_TABLES=y
+CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NF_TABLES_IPV4=y
+CONFIG_NF_TABLES_IPV6=y
+CONFIG_NETFILTER_INGRESS=y
+CONFIG_IP_NF_IPTABLES_LEGACY=y
+CONFIG_IP6_NF_IPTABLES_LEGACY=y
+CONFIG_NETFILTER_XTABLES_LEGACY=y
+CONFIG_NF_FLOW_TABLE=y
+CONFIG_NF_FLOW_TABLE_INET=y
+CONFIG_NETFILTER_NETLINK=y
+CONFIG_NFT_FLOW_OFFLOAD=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP6_NF_FILTER=y
+CONFIG_NF_NAT=y
+CONFIG_PACKET=y
+CONFIG_RC_CORE=y
+CONFIG_SAMPLES=y
+CONFIG_SAMPLE_LIVEPATCH=m
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
+CONFIG_SYN_COOKIES=y
+CONFIG_TEST_BPF=m
+CONFIG_UDMABUF=y
+CONFIG_USERFAULTFD=y
+CONFIG_VSOCKETS=y
+CONFIG_VXLAN=y
+CONFIG_XDP_SOCKETS=y
+CONFIG_XFRM_INTERFACE=y
+CONFIG_TCP_CONG_DCTCP=y
+CONFIG_TCP_CONG_BBR=y
+CONFIG_INFINIBAND=y
+CONFIG_SMC=y
+CONFIG_SMC_HS_CTRL_BPF=y
+CONFIG_DIBS=y
+CONFIG_DIBS_LO=y
+\ No newline at end of file
diff --git a/tools/testing/selftests/bpf/config.aarch64 b/tools/testing/selftests/bpf/config.aarch64
new file mode 100644
index 000000000000..7efad36ceb26
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.aarch64
@@ -0,0 +1,154 @@
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
+CONFIG_ARM_SMMU_V3=y
+CONFIG_ATA=y
+CONFIG_AUDIT=y
+CONFIG_BINFMT_MISC=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BONDING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_JIT_DEFAULT_ON=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BRIDGE=m
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_COMPAT=y
+CONFIG_CPUSETS=y
+CONFIG_CRASH_DUMP=y
+CONFIG_CRYPTO_USER_API_RNG=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_INFO_REDUCED=n
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_LOCKDEP=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DEBUG_SG=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DEVTMPFS=y
+CONFIG_DRM=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_FANOTIFY=y
+CONFIG_FB=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_FUSE_FS=y
+CONFIG_FW_CFG_SYSFS_CMDLINE=y
+CONFIG_FW_CFG_SYSFS=y
+CONFIG_GDB_SCRIPTS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HEADERS_INSTALL=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ_100=y
+CONFIG_IDLE_PAGE_TRACKING=y
+CONFIG_IKHEADERS=y
+CONFIG_INET6_ESP=y
+CONFIG_INET=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPVLAN=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KERNEL_UNCOMPRESSED=y
+CONFIG_KPROBES_ON_FTRACE=y
+CONFIG_KPROBES=y
+CONFIG_KRETPROBES=y
+CONFIG_KSM=y
+CONFIG_LATENCYTOP=y
+CONFIG_LIVEPATCH=y
+CONFIG_LOCK_STAT=y
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MAILBOX=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_NAMESPACES=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NET_KEY=y
+CONFIG_NET_VRF=y
+CONFIG_NET=y
+CONFIG_NLMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=256
+CONFIG_NUMA=y
+CONFIG_OVERLAY_FS=y
+CONFIG_PACKET_DIAG=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCI=y
+CONFIG_PL320_MBOX=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTDUMP_DEBUGFS=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_PL031=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SAMPLE_SECCOMP=y
+CONFIG_SAMPLES=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SCHED_TRACER=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SCAN_ASYNC=y
+CONFIG_SCSI=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_STACK_TRACER=y
+CONFIG_STATIC_KEYS_SELFTEST=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TCG_TIS=y
+CONFIG_TCG_TPM=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TLS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TMPFS=y
+CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS_LOOPBACK=y
+CONFIG_XFRM_USER=y
diff --git a/tools/testing/selftests/bpf/config.ppc64el b/tools/testing/selftests/bpf/config.ppc64el
new file mode 100644
index 000000000000..b53afb5e0b71
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.ppc64el
@@ -0,0 +1,92 @@
+CONFIG_ALTIVEC=y
+CONFIG_AUDIT=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BONDING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE="console=hvc0 wg.success=hvc1 panic_on_warn=1"
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CPUSETS=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_FS=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DEVTMPFS=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_FRAME_POINTER=y
+CONFIG_FRAME_WARN=1280
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_HVC_CONSOLE=y
+CONFIG_INET=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KPROBES=y
+CONFIG_MEMCG=y
+CONFIG_NAMESPACES=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_VRF=y
+CONFIG_NET=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NONPORTABLE=y
+CONFIG_NR_CPUS=256
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_PCI=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PPC64=y
+CONFIG_PPC_OF_BOOT_TRAMPOLINE=y
+CONFIG_PPC_PSERIES=y
+CONFIG_PPC_RADIX_MMU=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SECTION_MISMATCH_WARN_ONLY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SMP=y
+CONFIG_SOC_VIRT=y
+CONFIG_SYSVIPC=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_THREAD_SHIFT=14
+CONFIG_TLS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TMPFS=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS_LOOPBACK=y
+CONFIG_VSX=y
+CONFIG_XFRM_USER=y
diff --git a/tools/testing/selftests/bpf/config.riscv64 b/tools/testing/selftests/bpf/config.riscv64
new file mode 100644
index 000000000000..7bee24a79a71
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.riscv64
@@ -0,0 +1,83 @@
+CONFIG_AUDIT=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BONDING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CPUSETS=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_FS=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FRAME_POINTER=y
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_INET=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KPROBES=y
+CONFIG_MEMCG=y
+CONFIG_NAMESPACES=y
+CONFIG_NET=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_VRF=y
+CONFIG_NONPORTABLE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=256
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI=y
+CONFIG_PCI_HOST_GENERIC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_RISCV_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_RISCV_ISA_C=y
+CONFIG_RISCV_PMU=y
+CONFIG_RISCV_PMU_SBI=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SMP=y
+CONFIG_SOC_VIRT=y
+CONFIG_SYSVIPC=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TLS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS_LOOPBACK=y
+CONFIG_XFRM_USER=y
diff --git a/tools/testing/selftests/bpf/config.s390x b/tools/testing/selftests/bpf/config.s390x
new file mode 100644
index 000000000000..db61878148e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.s390x
@@ -0,0 +1,125 @@
+CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
+CONFIG_AUDIT=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BONDING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_JIT_DEFAULT_ON=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_CPUSETS=y
+CONFIG_CRASH_DUMP=y
+CONFIG_CRYPTO_USER_API_RNG=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_LOCKDEP=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DEBUG_SG=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FANOTIFY=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_GDB_SCRIPTS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_MARCH_Z10_FEATURES=y
+CONFIG_HAVE_MARCH_Z196_FEATURES=y
+CONFIG_HEADERS_INSTALL=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ_100=y
+CONFIG_IDLE_PAGE_TRACKING=y
+CONFIG_IKHEADERS=y
+CONFIG_INET6_ESP=y
+CONFIG_INET=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPVLAN=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KERNEL_UNCOMPRESSED=y
+CONFIG_KPROBES=y
+CONFIG_KPROBES_ON_FTRACE=y
+CONFIG_KRETPROBES=y
+CONFIG_KSM=y
+CONFIG_LATENCYTOP=y
+CONFIG_LIVEPATCH=y
+CONFIG_LOCK_STAT=y
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MARCH_Z196=y
+CONFIG_MARCH_Z196_TUNE=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_NAMESPACES=y
+CONFIG_NET=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_KEY=y
+CONFIG_NET_VRF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=256
+CONFIG_NUMA=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTDUMP_DEBUGFS=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SAMPLE_SECCOMP=y
+CONFIG_SAMPLES=y
+CONFIG_SCHED_TRACER=y
+CONFIG_SCSI=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_STACK_TRACER=y
+CONFIG_STATIC_KEYS_SELFTEST=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASKSTATS=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TLS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS_LOOPBACK=y
+CONFIG_XFRM_USER=y
diff --git a/tools/testing/selftests/bpf/config.vm b/tools/testing/selftests/bpf/config.vm
new file mode 100644
index 000000000000..da543b24c144
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.vm
@@ -0,0 +1,15 @@
+CONFIG_9P_FS_POSIX_ACL=y
+CONFIG_9P_FS_SECURITY=y
+CONFIG_9P_FS=y
+CONFIG_CRYPTO_DEV_VIRTIO=y
+CONFIG_FUSE_FS=y
+CONFIG_FUSE_PASSTHROUGH=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NET_9P=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_FS=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VSOCKETS_COMMON=y
diff --git a/tools/testing/selftests/bpf/config.x86_64 b/tools/testing/selftests/bpf/config.x86_64
new file mode 100644
index 000000000000..42ad817b00ae
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.x86_64
@@ -0,0 +1,227 @@
+CONFIG_AGP=y
+CONFIG_AGP_AMD64=y
+CONFIG_AGP_INTEL=y
+CONFIG_AGP_SIS=y
+CONFIG_AGP_VIA=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_AUDIT=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BINFMT_MISC=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_BONDING=y
+CONFIG_BOOTTIME_TRACING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=7
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPUSETS=y
+CONFIG_CRYPTO_BLAKE2B=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_XXHASH=y
+CONFIG_DCB=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEFAULT_FQ_CODEL=y
+CONFIG_DEFAULT_RENO=y
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_DNS_RESOLVER=y
+CONFIG_EFI=y
+CONFIG_EFI_STUB=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FAIL_FUNCTION=y
+CONFIG_FAULT_INJECTION=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FB=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+CONFIG_FB_VESA=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_MINI_4x6=y
+CONFIG_FONTS=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_GART_IOMMU=y
+CONFIG_GENERIC_PHY=y
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_HID_A4TECH=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_GREENASIA=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_KYE=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SMARTJOYPLUS=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_ZEROPLUS=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HPET=y
+CONFIG_HUGETLBFS=y
+CONFIG_HWPOISON_INJECT=y
+CONFIG_HZ_1000=y
+CONFIG_INET=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_INTEL_POWERCLAMP=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IPV6_MIP6=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IRQ_POLL=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KARMA_PARTITION=y
+CONFIG_KEXEC=y
+CONFIG_KPROBES=y
+CONFIG_KSM=y
+CONFIG_LEGACY_VSYSCALL_NONE=y
+CONFIG_LOG_BUF_SHIFT=21
+CONFIG_LOG_CPU_MAX_BUF_SHIFT=0
+CONFIG_LOGO=y
+CONFIG_LSM="selinux,bpf,integrity"
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MCORE2=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_FAILURE=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_NAMESPACES=y
+CONFIG_NET=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_SCH_DEFAULT=y
+CONFIG_NET_SCH_FQ_CODEL=y
+CONFIG_NET_TC_SKB_EXT=y
+CONFIG_NET_VRF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_NETLINK_LOG=y
+CONFIG_NETFILTER_NETLINK_QUEUE=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
+CONFIG_NETLABEL=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_HZ=y
+CONFIG_NR_CPUS=128
+CONFIG_NUMA=y
+CONFIG_NUMA_BALANCING=y
+CONFIG_NVMEM=y
+CONFIG_OSF_PARTITION=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI=y
+CONFIG_PCI_IOV=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PHYSICAL_ALIGN=0x1000000
+CONFIG_POSIX_MQUEUE=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PREEMPT=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_SCHEDSTATS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DETECT_IRQ=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RSA=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_NONSTANDARD=y
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SGI_PARTITION=y
+CONFIG_SMP=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_SUN_PARTITION=y
+CONFIG_SYNC_FILE=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASKSTATS=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TLS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_USER_NS=y
+CONFIG_VALIDATE_FS_PARSER=y
+CONFIG_VETH=y
+CONFIG_VIRT_DRIVERS=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VSOCKETS_LOOPBACK=y
+CONFIG_X86_ACPI_CPUFREQ=y
+CONFIG_X86_CPUID=y
+CONFIG_X86_MSR=y
+CONFIG_X86_POWERNOW_K8=y
+CONFIG_XDP_SOCKETS_DIAG=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_USER=y
+CONFIG_ZEROPLUS_FF=y
diff --git a/tools/testing/selftests/bpf/disasm.c b/tools/testing/selftests/bpf/disasm.c
new file mode 120000
index 000000000000..b1571927bd54
--- /dev/null
+++ b/tools/testing/selftests/bpf/disasm.c
@@ -0,0 +1 @@
+../../../../kernel/bpf/disasm.c
+\ No newline at end of file
diff --git a/tools/testing/selftests/bpf/disasm.h b/tools/testing/selftests/bpf/disasm.h
new file mode 120000
index 000000000000..8054fd497340
--- /dev/null
+++ b/tools/testing/selftests/bpf/disasm.h
@@ -0,0 +1 @@
+../../../../kernel/bpf/disasm.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/bpf/disasm_helpers.c b/tools/testing/selftests/bpf/disasm_helpers.c
new file mode 100644
index 000000000000..f529f1c8c171
--- /dev/null
+++ b/tools/testing/selftests/bpf/disasm_helpers.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+#include <bpf/bpf.h>
+#include "disasm.h"
+
+struct print_insn_context {
+	char scratch[16];
+	char *buf;
+	size_t sz;
+};
+
+static void print_insn_cb(void *private_data, const char *fmt, ...)
+{
+	struct print_insn_context *ctx = private_data;
+	va_list args;
+
+	va_start(args, fmt);
+	vsnprintf(ctx->buf, ctx->sz, fmt, args);
+	va_end(args);
+}
+
+static const char *print_call_cb(void *private_data, const struct bpf_insn *insn)
+{
+	struct print_insn_context *ctx = private_data;
+
+	/* For pseudo calls verifier.c:jit_subprogs() hides original
+	 * imm to insn->off and changes insn->imm to be an index of
+	 * the subprog instead.
+	 */
+	if (insn->src_reg == BPF_PSEUDO_CALL) {
+		snprintf(ctx->scratch, sizeof(ctx->scratch), "%+d", insn->off);
+		return ctx->scratch;
+	}
+
+	return NULL;
+}
+
+struct bpf_insn *disasm_insn(struct bpf_insn *insn, char *buf, size_t buf_sz)
+{
+	struct print_insn_context ctx = {
+		.buf = buf,
+		.sz = buf_sz,
+	};
+	struct bpf_insn_cbs cbs = {
+		.cb_print	= print_insn_cb,
+		.cb_call	= print_call_cb,
+		.private_data	= &ctx,
+	};
+	char *tmp, *pfx_end, *sfx_start;
+	bool double_insn;
+	int len;
+
+	print_bpf_insn(&cbs, insn, true);
+	/* We share code with kernel BPF disassembler, it adds '(FF) ' prefix
+	 * for each instruction (FF stands for instruction `code` byte).
+	 * Remove the prefix inplace, and also simplify call instructions.
+	 * E.g.: "(85) call foo#10" -> "call foo".
+	 * Also remove newline in the end (the 'max(strlen(buf) - 1, 0)' thing).
+	 */
+	pfx_end = buf + 5;
+	sfx_start = buf + max((int)strlen(buf) - 1, 0);
+	if (strncmp(pfx_end, "call ", 5) == 0 && (tmp = strrchr(buf, '#')))
+		sfx_start = tmp;
+	len = sfx_start - pfx_end;
+	memmove(buf, pfx_end, len);
+	buf[len] = 0;
+	double_insn = insn->code == (BPF_LD | BPF_IMM | BPF_DW);
+	return insn + (double_insn ? 2 : 1);
+}
diff --git a/tools/testing/selftests/bpf/disasm_helpers.h b/tools/testing/selftests/bpf/disasm_helpers.h
new file mode 100644
index 000000000000..7b26cab70099
--- /dev/null
+++ b/tools/testing/selftests/bpf/disasm_helpers.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+
+#ifndef __DISASM_HELPERS_H
+#define __DISASM_HELPERS_H
+
+#include <stdlib.h>
+
+struct bpf_insn;
+
+struct bpf_insn *disasm_insn(struct bpf_insn *insn, char *buf, size_t buf_sz);
+
+#endif /* __DISASM_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/flow_dissector_load.c b/tools/testing/selftests/bpf/flow_dissector_load.c
new file mode 100644
index 000000000000..c8be6406777f
--- /dev/null
+++ b/tools/testing/selftests/bpf/flow_dissector_load.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <error.h>
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "flow_dissector_load.h"
+
+const char *cfg_pin_path = "/sys/fs/bpf/flow_dissector";
+const char *cfg_map_name = "jmp_table";
+bool cfg_attach = true;
+char *cfg_prog_name;
+char *cfg_path_name;
+
+static void load_and_attach_program(void)
+{
+	int prog_fd, ret;
+	struct bpf_object *obj;
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	ret = bpf_flow_load(&obj, cfg_path_name, cfg_prog_name,
+			    cfg_map_name, NULL, &prog_fd, NULL);
+	if (ret)
+		error(1, 0, "bpf_flow_load %s", cfg_path_name);
+
+	ret = bpf_prog_attach(prog_fd, 0 /* Ignore */, BPF_FLOW_DISSECTOR, 0);
+	if (ret)
+		error(1, 0, "bpf_prog_attach %s", cfg_path_name);
+
+	ret = bpf_object__pin(obj, cfg_pin_path);
+	if (ret)
+		error(1, 0, "bpf_object__pin %s", cfg_pin_path);
+}
+
+static void detach_program(void)
+{
+	char command[64];
+	int ret;
+
+	ret = bpf_prog_detach(0, BPF_FLOW_DISSECTOR);
+	if (ret)
+		error(1, 0, "bpf_prog_detach");
+
+	/* To unpin, it is necessary and sufficient to just remove this dir */
+	sprintf(command, "rm -r %s", cfg_pin_path);
+	ret = system(command);
+	if (ret)
+		error(1, errno, "%s", command);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	bool attach = false;
+	bool detach = false;
+	int c;
+
+	while ((c = getopt(argc, argv, "adp:s:")) != -1) {
+		switch (c) {
+		case 'a':
+			if (detach)
+				error(1, 0, "attach/detach are exclusive");
+			attach = true;
+			break;
+		case 'd':
+			if (attach)
+				error(1, 0, "attach/detach are exclusive");
+			detach = true;
+			break;
+		case 'p':
+			if (cfg_path_name)
+				error(1, 0, "only one path can be given");
+
+			cfg_path_name = optarg;
+			break;
+		case 's':
+			if (cfg_prog_name)
+				error(1, 0, "only one prog can be given");
+
+			cfg_prog_name = optarg;
+			break;
+		}
+	}
+
+	if (detach)
+		cfg_attach = false;
+
+	if (cfg_attach && !cfg_path_name)
+		error(1, 0, "must provide a path to the BPF program");
+
+	if (cfg_attach && !cfg_prog_name)
+		error(1, 0, "must provide a section name");
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+	if (cfg_attach)
+		load_and_attach_program();
+	else
+		detach_program();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/flow_dissector_load.h b/tools/testing/selftests/bpf/flow_dissector_load.h
new file mode 100644
index 000000000000..f40b585f4e7e
--- /dev/null
+++ b/tools/testing/selftests/bpf/flow_dissector_load.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
+#ifndef FLOW_DISSECTOR_LOAD
+#define FLOW_DISSECTOR_LOAD
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include "testing_helpers.h"
+
+static inline int bpf_flow_load(struct bpf_object **obj,
+				const char *path,
+				const char *prog_name,
+				const char *map_name,
+				const char *keys_map_name,
+				int *prog_fd,
+				int *keys_fd)
+{
+	struct bpf_program *prog, *main_prog;
+	struct bpf_map *prog_array, *keys;
+	int prog_array_fd;
+	int ret, fd, i;
+
+	ret = bpf_prog_test_load(path, BPF_PROG_TYPE_FLOW_DISSECTOR, obj,
+			    prog_fd);
+	if (ret)
+		return ret;
+
+	main_prog = bpf_object__find_program_by_name(*obj, prog_name);
+	if (!main_prog)
+		return -1;
+
+	*prog_fd = bpf_program__fd(main_prog);
+	if (*prog_fd < 0)
+		return -1;
+
+	prog_array = bpf_object__find_map_by_name(*obj, map_name);
+	if (!prog_array)
+		return -1;
+
+	prog_array_fd = bpf_map__fd(prog_array);
+	if (prog_array_fd < 0)
+		return -1;
+
+	if (keys_map_name && keys_fd) {
+		keys = bpf_object__find_map_by_name(*obj, keys_map_name);
+		if (!keys)
+			return -1;
+
+		*keys_fd = bpf_map__fd(keys);
+		if (*keys_fd < 0)
+			return -1;
+	}
+
+	i = 0;
+	bpf_object__for_each_program(prog, *obj) {
+		fd = bpf_program__fd(prog);
+		if (fd < 0)
+			return fd;
+
+		if (fd != *prog_fd) {
+			bpf_map_update_elem(prog_array_fd, &i, &fd, BPF_ANY);
+			++i;
+		}
+	}
+
+	return 0;
+}
+
+#endif /* FLOW_DISSECTOR_LOAD */
diff --git a/tools/testing/selftests/bpf/generate_udp_fragments.py b/tools/testing/selftests/bpf/generate_udp_fragments.py
new file mode 100755
index 000000000000..2b8a1187991c
--- /dev/null
+++ b/tools/testing/selftests/bpf/generate_udp_fragments.py
@@ -0,0 +1,90 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+This script helps generate fragmented UDP packets.
+
+While it is technically possible to dynamically generate
+fragmented packets in C, it is much harder to read and write
+said code. `scapy` is relatively industry standard and really
+easy to read / write.
+
+So we choose to write this script that generates a valid C
+header. Rerun script and commit generated file after any
+modifications.
+"""
+
+import argparse
+import os
+
+from scapy.all import *
+
+
+# These constants must stay in sync with `ip_check_defrag.c`
+VETH1_ADDR = "172.16.1.200"
+VETH0_ADDR6 = "fc00::100"
+VETH1_ADDR6 = "fc00::200"
+CLIENT_PORT = 48878
+SERVER_PORT = 48879
+MAGIC_MESSAGE = "THIS IS THE ORIGINAL MESSAGE, PLEASE REASSEMBLE ME"
+
+
+def print_header(f):
+    f.write("// SPDX-License-Identifier: GPL-2.0\n")
+    f.write("/* DO NOT EDIT -- this file is generated */\n")
+    f.write("\n")
+    f.write("#ifndef _IP_CHECK_DEFRAG_FRAGS_H\n")
+    f.write("#define _IP_CHECK_DEFRAG_FRAGS_H\n")
+    f.write("\n")
+    f.write("#include <stdint.h>\n")
+    f.write("\n")
+
+
+def print_frags(f, frags, v6):
+    for idx, frag in enumerate(frags):
+        # 10 bytes per line to keep width in check
+        chunks = [frag[i : i + 10] for i in range(0, len(frag), 10)]
+        chunks_fmted = [", ".join([str(hex(b)) for b in chunk]) for chunk in chunks]
+        suffix = "6" if v6 else ""
+
+        f.write(f"static uint8_t frag{suffix}_{idx}[] = {{\n")
+        for chunk in chunks_fmted:
+            f.write(f"\t{chunk},\n")
+        f.write(f"}};\n")
+
+
+def print_trailer(f):
+    f.write("\n")
+    f.write("#endif /* _IP_CHECK_DEFRAG_FRAGS_H */\n")
+
+
+def main(f):
+    # srcip of 0 is filled in by IP_HDRINCL
+    sip = "0.0.0.0"
+    sip6 = VETH0_ADDR6
+    dip = VETH1_ADDR
+    dip6 = VETH1_ADDR6
+    sport = CLIENT_PORT
+    dport = SERVER_PORT
+    payload = MAGIC_MESSAGE.encode()
+
+    # Disable UDPv4 checksums to keep code simpler
+    pkt = IP(src=sip,dst=dip) / UDP(sport=sport,dport=dport,chksum=0) / Raw(load=payload)
+    # UDPv6 requires a checksum
+    # Also pin the ipv6 fragment header ID, otherwise it's a random value
+    pkt6 = IPv6(src=sip6,dst=dip6) / IPv6ExtHdrFragment(id=0xBEEF) / UDP(sport=sport,dport=dport) / Raw(load=payload)
+
+    frags = [f.build() for f in pkt.fragment(24)]
+    frags6 = [f.build() for f in fragment6(pkt6, 72)]
+
+    print_header(f)
+    print_frags(f, frags, False)
+    print_frags(f, frags6, True)
+    print_trailer(f)
+
+
+if __name__ == "__main__":
+    dir = os.path.dirname(os.path.realpath(__file__))
+    header = f"{dir}/ip_check_defrag_frags.h"
+    with open(header, "w") as f:
+        main(f)
diff --git a/tools/testing/selftests/bpf/gnu/stubs.h b/tools/testing/selftests/bpf/gnu/stubs.h
new file mode 100644
index 000000000000..1c638d9dce1a
--- /dev/null
+++ b/tools/testing/selftests/bpf/gnu/stubs.h
@@ -0,0 +1 @@
+/* dummy .h to trick /usr/include/features.h to work with 'clang --target=bpf' */
diff --git a/tools/testing/selftests/bpf/ima_setup.sh b/tools/testing/selftests/bpf/ima_setup.sh
new file mode 100755
index 000000000000..8ecead4ccad0
--- /dev/null
+++ b/tools/testing/selftests/bpf/ima_setup.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+set -u
+set -o pipefail
+
+IMA_POLICY_FILE="/sys/kernel/security/ima/policy"
+TEST_BINARY="/bin/true"
+VERBOSE="${SELFTESTS_VERBOSE:=0}"
+LOG_FILE="$(mktemp /tmp/ima_setup.XXXX.log)"
+
+usage()
+{
+	echo "Usage: $0 <setup|cleanup|run|modify-bin|restore-bin|load-policy> <existing_tmp_dir>"
+	exit 1
+}
+
+ensure_mount_securityfs()
+{
+	local securityfs_dir=$(grep "securityfs" /proc/mounts | awk '{print $2}')
+
+	if [ -z "${securityfs_dir}" ]; then
+		securityfs_dir=/sys/kernel/security
+		mount -t securityfs security "${securityfs_dir}"
+	fi
+
+	if [ ! -d "${securityfs_dir}" ]; then
+		echo "${securityfs_dir}: securityfs is not mounted" && exit 1
+	fi
+}
+
+setup()
+{
+	local tmp_dir="$1"
+	local mount_img="${tmp_dir}/test.img"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+	mkdir -p ${mount_dir}
+
+	dd if=/dev/zero of="${mount_img}" bs=1M count=10
+
+	losetup -f "${mount_img}"
+	local loop_device=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
+
+	mkfs.ext2 "${loop_device:?}"
+	mount "${loop_device}" "${mount_dir}"
+
+	cp "${TEST_BINARY}" "${mount_dir}"
+	local mount_uuid="$(blkid ${loop_device} | sed 's/.*UUID="\([^"]*\)".*/\1/')"
+
+	ensure_mount_securityfs
+	echo "measure func=BPRM_CHECK fsuuid=${mount_uuid}" > ${IMA_POLICY_FILE}
+	echo "measure func=BPRM_CHECK fsuuid=${mount_uuid}" > ${mount_dir}/policy_test
+}
+
+cleanup() {
+	local tmp_dir="$1"
+	local mount_img="${tmp_dir}/test.img"
+	local mount_dir="${tmp_dir}/mnt"
+
+	local loop_devices=$(losetup -a | grep ${mount_img:?} | cut -d ":" -f1)
+
+	for loop_dev in "${loop_devices}"; do
+		losetup -d $loop_dev
+	done
+
+	umount ${mount_dir}
+	rm -rf ${tmp_dir}
+}
+
+run()
+{
+	local tmp_dir="$1"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+
+	exec "${copied_bin_path}"
+}
+
+modify_bin()
+{
+	local tmp_dir="$1"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+
+	echo "mod" >> "${copied_bin_path}"
+}
+
+restore_bin()
+{
+	local tmp_dir="$1"
+	local mount_dir="${tmp_dir}/mnt"
+	local copied_bin_path="${mount_dir}/$(basename ${TEST_BINARY})"
+
+	truncate -s -4 "${copied_bin_path}"
+}
+
+load_policy()
+{
+	local tmp_dir="$1"
+	local mount_dir="${tmp_dir}/mnt"
+
+	echo ${mount_dir}/policy_test > ${IMA_POLICY_FILE} 2> /dev/null
+}
+
+catch()
+{
+	local exit_code="$1"
+	local log_file="$2"
+
+	if [[ "${exit_code}" -ne 0 ]]; then
+		cat "${log_file}" >&3
+	fi
+
+	rm -f "${log_file}"
+	exit ${exit_code}
+}
+
+main()
+{
+	[[ $# -ne 2 ]] && usage
+
+	local action="$1"
+	local tmp_dir="$2"
+
+	[[ ! -d "${tmp_dir}" ]] && echo "Directory ${tmp_dir} doesn't exist" && exit 1
+
+	if [[ "${action}" == "setup" ]]; then
+		setup "${tmp_dir}"
+	elif [[ "${action}" == "cleanup" ]]; then
+		cleanup "${tmp_dir}"
+	elif [[ "${action}" == "run" ]]; then
+		run "${tmp_dir}"
+	elif [[ "${action}" == "modify-bin" ]]; then
+		modify_bin "${tmp_dir}"
+	elif [[ "${action}" == "restore-bin" ]]; then
+		restore_bin "${tmp_dir}"
+	elif [[ "${action}" == "load-policy" ]]; then
+		load_policy "${tmp_dir}"
+	else
+		echo "Unknown action: ${action}"
+		exit 1
+	fi
+}
+
+trap 'catch "$?" "${LOG_FILE}"' EXIT
+
+if [[ "${VERBOSE}" -eq 0 ]]; then
+	# Save the stderr to 3 so that we can output back to
+	# it incase of an error.
+	exec 3>&2 1>"${LOG_FILE}" 2>&1
+fi
+
+main "$@"
+rm -f "${LOG_FILE}"
diff --git a/tools/testing/selftests/bpf/io_helpers.c b/tools/testing/selftests/bpf/io_helpers.c
new file mode 100644
index 000000000000..4ada0a74aa1f
--- /dev/null
+++ b/tools/testing/selftests/bpf/io_helpers.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <sys/select.h>
+#include <unistd.h>
+#include <errno.h>
+
+int read_with_timeout(int fd, char *buf, size_t count, long usec)
+{
+	const long M = 1000 * 1000;
+	struct timeval tv = { usec / M, usec % M };
+	fd_set fds;
+	int err;
+
+	FD_ZERO(&fds);
+	FD_SET(fd, &fds);
+	err = select(fd + 1, &fds, NULL, NULL, &tv);
+	if (err < 0)
+		return err;
+	if (FD_ISSET(fd, &fds))
+		return read(fd, buf, count);
+	return -EAGAIN;
+}
diff --git a/tools/testing/selftests/bpf/io_helpers.h b/tools/testing/selftests/bpf/io_helpers.h
new file mode 100644
index 000000000000..21e1134cd3ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/io_helpers.h
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <unistd.h>
+
+/* As a regular read(2), but allows to specify a timeout in micro-seconds.
+ * Returns -EAGAIN on timeout.
+ */
+int read_with_timeout(int fd, char *buf, size_t count, long usec);
diff --git a/tools/testing/selftests/bpf/ip_check_defrag_frags.h b/tools/testing/selftests/bpf/ip_check_defrag_frags.h
new file mode 100644
index 000000000000..70ab7e9fa22b
--- /dev/null
+++ b/tools/testing/selftests/bpf/ip_check_defrag_frags.h
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/* DO NOT EDIT -- this file is generated */
+
+#ifndef _IP_CHECK_DEFRAG_FRAGS_H
+#define _IP_CHECK_DEFRAG_FRAGS_H
+
+#include <stdint.h>
+
+static uint8_t frag_0[] = {
+	0x45, 0x0, 0x0, 0x2c, 0x0, 0x1, 0x20, 0x0, 0x40, 0x11,
+	0xac, 0xe8, 0x0, 0x0, 0x0, 0x0, 0xac, 0x10, 0x1, 0xc8,
+	0xbe, 0xee, 0xbe, 0xef, 0x0, 0x3a, 0x0, 0x0, 0x54, 0x48,
+	0x49, 0x53, 0x20, 0x49, 0x53, 0x20, 0x54, 0x48, 0x45, 0x20,
+	0x4f, 0x52, 0x49, 0x47,
+};
+static uint8_t frag_1[] = {
+	0x45, 0x0, 0x0, 0x2c, 0x0, 0x1, 0x20, 0x3, 0x40, 0x11,
+	0xac, 0xe5, 0x0, 0x0, 0x0, 0x0, 0xac, 0x10, 0x1, 0xc8,
+	0x49, 0x4e, 0x41, 0x4c, 0x20, 0x4d, 0x45, 0x53, 0x53, 0x41,
+	0x47, 0x45, 0x2c, 0x20, 0x50, 0x4c, 0x45, 0x41, 0x53, 0x45,
+	0x20, 0x52, 0x45, 0x41,
+};
+static uint8_t frag_2[] = {
+	0x45, 0x0, 0x0, 0x1e, 0x0, 0x1, 0x0, 0x6, 0x40, 0x11,
+	0xcc, 0xf0, 0x0, 0x0, 0x0, 0x0, 0xac, 0x10, 0x1, 0xc8,
+	0x53, 0x53, 0x45, 0x4d, 0x42, 0x4c, 0x45, 0x20, 0x4d, 0x45,
+};
+static uint8_t frag6_0[] = {
+	0x60, 0x0, 0x0, 0x0, 0x0, 0x20, 0x2c, 0x40, 0xfc, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x1, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0,
+	0x11, 0x0, 0x0, 0x1, 0x0, 0x0, 0xbe, 0xef, 0xbe, 0xee,
+	0xbe, 0xef, 0x0, 0x3a, 0xd0, 0xf8, 0x54, 0x48, 0x49, 0x53,
+	0x20, 0x49, 0x53, 0x20, 0x54, 0x48, 0x45, 0x20, 0x4f, 0x52,
+	0x49, 0x47,
+};
+static uint8_t frag6_1[] = {
+	0x60, 0x0, 0x0, 0x0, 0x0, 0x20, 0x2c, 0x40, 0xfc, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x1, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0,
+	0x11, 0x0, 0x0, 0x19, 0x0, 0x0, 0xbe, 0xef, 0x49, 0x4e,
+	0x41, 0x4c, 0x20, 0x4d, 0x45, 0x53, 0x53, 0x41, 0x47, 0x45,
+	0x2c, 0x20, 0x50, 0x4c, 0x45, 0x41, 0x53, 0x45, 0x20, 0x52,
+	0x45, 0x41,
+};
+static uint8_t frag6_2[] = {
+	0x60, 0x0, 0x0, 0x0, 0x0, 0x12, 0x2c, 0x40, 0xfc, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x1, 0x0, 0xfc, 0x0, 0x0, 0x0, 0x0, 0x0,
+	0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0,
+	0x11, 0x0, 0x0, 0x30, 0x0, 0x0, 0xbe, 0xef, 0x53, 0x53,
+	0x45, 0x4d, 0x42, 0x4c, 0x45, 0x20, 0x4d, 0x45,
+};
+
+#endif /* _IP_CHECK_DEFRAG_FRAGS_H */
diff --git a/tools/testing/selftests/bpf/jit_disasm_helpers.c b/tools/testing/selftests/bpf/jit_disasm_helpers.c
new file mode 100644
index 000000000000..febd6b12e372
--- /dev/null
+++ b/tools/testing/selftests/bpf/jit_disasm_helpers.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <test_progs.h>
+
+#ifdef HAVE_LLVM_SUPPORT
+
+#include <llvm-c/Core.h>
+#include <llvm-c/Disassembler.h>
+#include <llvm-c/Target.h>
+#include <llvm-c/TargetMachine.h>
+
+/* The intent is to use get_jited_program_text() for small test
+ * programs written in BPF assembly, thus assume that 32 local labels
+ * would be sufficient.
+ */
+#define MAX_LOCAL_LABELS 32
+
+/* Local labels are encoded as 'L42', this requires 4 bytes of storage:
+ * 3 characters + zero byte
+ */
+#define LOCAL_LABEL_LEN 4
+
+static bool llvm_initialized;
+
+struct local_labels {
+	bool print_phase;
+	__u32 prog_len;
+	__u32 cnt;
+	__u32 pcs[MAX_LOCAL_LABELS];
+	char names[MAX_LOCAL_LABELS][LOCAL_LABEL_LEN];
+};
+
+static const char *lookup_symbol(void *data, uint64_t ref_value, uint64_t *ref_type,
+				 uint64_t ref_pc, const char **ref_name)
+{
+	struct local_labels *labels = data;
+	uint64_t type = *ref_type;
+	int i;
+
+	*ref_type = LLVMDisassembler_ReferenceType_InOut_None;
+	*ref_name = NULL;
+	if (type != LLVMDisassembler_ReferenceType_In_Branch)
+		return NULL;
+	/* Depending on labels->print_phase either discover local labels or
+	 * return a name assigned with local jump target:
+	 * - if print_phase is true and ref_value is in labels->pcs,
+	 *   return corresponding labels->name.
+	 * - if print_phase is false, save program-local jump targets
+	 *   in labels->pcs;
+	 */
+	if (labels->print_phase) {
+		for (i = 0; i < labels->cnt; ++i)
+			if (labels->pcs[i] == ref_value)
+				return labels->names[i];
+	} else {
+		if (labels->cnt < MAX_LOCAL_LABELS && ref_value < labels->prog_len)
+			labels->pcs[labels->cnt++] = ref_value;
+	}
+	return NULL;
+}
+
+static int disasm_insn(LLVMDisasmContextRef ctx, uint8_t *image, __u32 len, __u32 pc,
+		       char *buf, __u32 buf_sz)
+{
+	int i, cnt;
+
+	cnt = LLVMDisasmInstruction(ctx, image + pc, len - pc, pc,
+				    buf, buf_sz);
+	if (cnt > 0)
+		return cnt;
+	PRINT_FAIL("Can't disasm instruction at offset %d:", pc);
+	for (i = 0; i < 16 && pc + i < len; ++i)
+		printf(" %02x", image[pc + i]);
+	printf("\n");
+	return -EINVAL;
+}
+
+static int cmp_u32(const void *_a, const void *_b)
+{
+	__u32 a = *(__u32 *)_a;
+	__u32 b = *(__u32 *)_b;
+
+	if (a < b)
+		return -1;
+	if (a > b)
+		return 1;
+	return 0;
+}
+
+static int disasm_one_func(FILE *text_out, uint8_t *image, __u32 len)
+{
+	char *label, *colon, *triple = NULL;
+	LLVMDisasmContextRef ctx = NULL;
+	struct local_labels labels = {};
+	__u32 *label_pc, pc;
+	int i, cnt, err = 0;
+	char buf[64];
+
+	triple = LLVMGetDefaultTargetTriple();
+	ctx = LLVMCreateDisasm(triple, &labels, 0, NULL, lookup_symbol);
+	if (!ASSERT_OK_PTR(ctx, "LLVMCreateDisasm")) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	cnt = LLVMSetDisasmOptions(ctx, LLVMDisassembler_Option_PrintImmHex);
+	if (!ASSERT_EQ(cnt, 1, "LLVMSetDisasmOptions")) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* discover labels */
+	labels.prog_len = len;
+	pc = 0;
+	while (pc < len) {
+		cnt = disasm_insn(ctx, image, len, pc, buf, 1);
+		if (cnt < 0) {
+			err = cnt;
+			goto out;
+		}
+		pc += cnt;
+	}
+	qsort(labels.pcs, labels.cnt, sizeof(*labels.pcs), cmp_u32);
+	for (i = 0; i < labels.cnt; ++i)
+		/* gcc is unable to infer upper bound for labels.cnt and assumes
+		 * it to be U32_MAX. U32_MAX takes 10 decimal digits.
+		 * snprintf below prints into labels.names[*],
+		 * which has space only for two digits and a letter.
+		 * To avoid truncation warning use (i % MAX_LOCAL_LABELS),
+		 * which informs gcc about printed value upper bound.
+		 */
+		snprintf(labels.names[i], sizeof(labels.names[i]), "L%d", i % MAX_LOCAL_LABELS);
+
+	/* now print with labels */
+	labels.print_phase = true;
+	pc = 0;
+	while (pc < len) {
+		cnt = disasm_insn(ctx, image, len, pc, buf, sizeof(buf));
+		if (cnt < 0) {
+			err = cnt;
+			goto out;
+		}
+		label_pc = bsearch(&pc, labels.pcs, labels.cnt, sizeof(*labels.pcs), cmp_u32);
+		label = "";
+		colon = "";
+		if (label_pc) {
+			label = labels.names[label_pc - labels.pcs];
+			colon = ":";
+		}
+		fprintf(text_out, "%x:\t", pc);
+		for (i = 0; i < cnt; ++i)
+			fprintf(text_out, "%02x ", image[pc + i]);
+		for (i = cnt * 3; i < 12 * 3; ++i)
+			fputc(' ', text_out);
+		fprintf(text_out, "%s%s%s\n", label, colon, buf);
+		pc += cnt;
+	}
+
+out:
+	if (triple)
+		LLVMDisposeMessage(triple);
+	if (ctx)
+		LLVMDisasmDispose(ctx);
+	return err;
+}
+
+int get_jited_program_text(int fd, char *text, size_t text_sz)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	__u32 jited_funcs, len, pc;
+	__u32 *func_lens = NULL;
+	FILE *text_out = NULL;
+	uint8_t *image = NULL;
+	int i, err = 0;
+
+	if (!llvm_initialized) {
+		LLVMInitializeAllTargetInfos();
+		LLVMInitializeAllTargetMCs();
+		LLVMInitializeAllDisassemblers();
+		llvm_initialized = 1;
+	}
+
+	text_out = fmemopen(text, text_sz, "w");
+	if (!ASSERT_OK_PTR(text_out, "open_memstream")) {
+		err = -errno;
+		goto out;
+	}
+
+	/* first call is to find out jited program len */
+	err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd #1"))
+		goto out;
+
+	len = info.jited_prog_len;
+	image = malloc(len);
+	if (!ASSERT_OK_PTR(image, "malloc(info.jited_prog_len)")) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	jited_funcs = info.nr_jited_func_lens;
+	func_lens = malloc(jited_funcs * sizeof(__u32));
+	if (!ASSERT_OK_PTR(func_lens, "malloc(info.nr_jited_func_lens)")) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	memset(&info, 0, sizeof(info));
+	info.jited_prog_insns = (__u64)image;
+	info.jited_prog_len = len;
+	info.jited_func_lens = (__u64)func_lens;
+	info.nr_jited_func_lens = jited_funcs;
+	err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd #2"))
+		goto out;
+
+	for (pc = 0, i = 0; i < jited_funcs; ++i) {
+		fprintf(text_out, "func #%d:\n", i);
+		disasm_one_func(text_out, image + pc, func_lens[i]);
+		fprintf(text_out, "\n");
+		pc += func_lens[i];
+	}
+
+out:
+	if (text_out)
+		fclose(text_out);
+	if (image)
+		free(image);
+	if (func_lens)
+		free(func_lens);
+	return err;
+}
+
+#else /* HAVE_LLVM_SUPPORT */
+
+int get_jited_program_text(int fd, char *text, size_t text_sz)
+{
+	if (env.verbosity >= VERBOSE_VERY)
+		printf("compiled w/o llvm development libraries, can't dis-assembly binary code");
+	return -EOPNOTSUPP;
+}
+
+#endif /* HAVE_LLVM_SUPPORT */
diff --git a/tools/testing/selftests/bpf/jit_disasm_helpers.h b/tools/testing/selftests/bpf/jit_disasm_helpers.h
new file mode 100644
index 000000000000..e6924fd65ecf
--- /dev/null
+++ b/tools/testing/selftests/bpf/jit_disasm_helpers.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+
+#ifndef __JIT_DISASM_HELPERS_H
+#define __JIT_DISASM_HELPERS_H
+
+#include <stddef.h>
+
+int get_jited_program_text(int fd, char *text, size_t text_sz);
+
+#endif /* __JIT_DISASM_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/json_writer.c b/tools/testing/selftests/bpf/json_writer.c
new file mode 120000
index 000000000000..5effa31e2f39
--- /dev/null
+++ b/tools/testing/selftests/bpf/json_writer.c
@@ -0,0 +1 @@
+../../../bpf/bpftool/json_writer.c
+\ No newline at end of file
diff --git a/tools/testing/selftests/bpf/json_writer.h b/tools/testing/selftests/bpf/json_writer.h
new file mode 120000
index 000000000000..e0a264c26752
--- /dev/null
+++ b/tools/testing/selftests/bpf/json_writer.h
@@ -0,0 +1 @@
+../../../bpf/bpftool/json_writer.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/bpf/liburandom_read.map b/tools/testing/selftests/bpf/liburandom_read.map
new file mode 100644
index 000000000000..38a97a419a04
--- /dev/null
+++ b/tools/testing/selftests/bpf/liburandom_read.map
@@ -0,0 +1,15 @@
+LIBURANDOM_READ_1.0.0 {
+	global:
+		urandlib_api;
+		urandlib_api_sameoffset;
+		urandlib_read_without_sema;
+		urandlib_read_with_sema;
+		urandlib_read_with_sema_semaphore;
+	local:
+		*;
+};
+
+LIBURANDOM_READ_2.0.0 {
+	global:
+		urandlib_api;
+} LIBURANDOM_READ_1.0.0;
diff --git a/tools/testing/selftests/bpf/map_tests/.gitignore b/tools/testing/selftests/bpf/map_tests/.gitignore
new file mode 100644
index 000000000000..89c4a3d37544
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+tests.h
diff --git a/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c
new file mode 100644
index 000000000000..b595556315bc
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/array_map_batch_ops.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <test_maps.h>
+
+static int nr_cpus;
+
+static void map_batch_update(int map_fd, __u32 max_entries, int *keys,
+			     __s64 *values, bool is_pcpu)
+{
+	int i, j, err;
+	int cpu_offset = 0;
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	for (i = 0; i < max_entries; i++) {
+		keys[i] = i;
+		if (is_pcpu) {
+			cpu_offset = i * nr_cpus;
+			for (j = 0; j < nr_cpus; j++)
+				(values + cpu_offset)[j] = i + 1 + j;
+		} else {
+			values[i] = i + 1;
+		}
+	}
+
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &opts);
+	CHECK(err, "bpf_map_update_batch()", "error:%s\n", strerror(errno));
+}
+
+static void map_batch_verify(int *visited, __u32 max_entries, int *keys,
+			     __s64 *values, bool is_pcpu)
+{
+	int i, j;
+	int cpu_offset = 0;
+
+	memset(visited, 0, max_entries * sizeof(*visited));
+	for (i = 0; i < max_entries; i++) {
+		if (is_pcpu) {
+			cpu_offset = i * nr_cpus;
+			for (j = 0; j < nr_cpus; j++) {
+				__s64 value = (values + cpu_offset)[j];
+				CHECK(keys[i] + j + 1 != value,
+				      "key/value checking",
+				      "error: i %d j %d key %d value %lld\n", i,
+				      j, keys[i], value);
+			}
+		} else {
+			CHECK(keys[i] + 1 != values[i], "key/value checking",
+			      "error: i %d key %d value %lld\n", i, keys[i],
+			      values[i]);
+		}
+		visited[i] = 1;
+	}
+	for (i = 0; i < max_entries; i++) {
+		CHECK(visited[i] != 1, "visited checking",
+		      "error: keys array at index %d missing\n", i);
+	}
+}
+
+static void __test_map_lookup_and_update_batch(bool is_pcpu)
+{
+	int map_fd, *keys, *visited;
+	__u32 count, total, total_success;
+	const __u32 max_entries = 10;
+	__u64 batch = 0;
+	int err, step, value_size;
+	void *values;
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	map_fd = bpf_map_create(is_pcpu ? BPF_MAP_TYPE_PERCPU_ARRAY : BPF_MAP_TYPE_ARRAY,
+				"array_map", sizeof(int), sizeof(__s64), max_entries, NULL);
+	CHECK(map_fd == -1,
+	      "bpf_map_create()", "error:%s\n", strerror(errno));
+
+	value_size = sizeof(__s64);
+	if (is_pcpu)
+		value_size *= nr_cpus;
+
+	keys = calloc(max_entries, sizeof(*keys));
+	values = calloc(max_entries, value_size);
+	visited = calloc(max_entries, sizeof(*visited));
+	CHECK(!keys || !values || !visited, "malloc()", "error:%s\n",
+	      strerror(errno));
+
+	/* test 1: lookup in a loop with various steps. */
+	total_success = 0;
+	for (step = 1; step < max_entries; step++) {
+		map_batch_update(map_fd, max_entries, keys, values, is_pcpu);
+		map_batch_verify(visited, max_entries, keys, values, is_pcpu);
+		memset(keys, 0, max_entries * sizeof(*keys));
+		memset(values, 0, max_entries * value_size);
+		batch = 0;
+		total = 0;
+		/* iteratively lookup/delete elements with 'step'
+		 * elements each.
+		 */
+		count = step;
+		while (true) {
+			err = bpf_map_lookup_batch(map_fd,
+						   total ? &batch : NULL,
+						   &batch, keys + total,
+						   values + total * value_size,
+						   &count, &opts);
+
+			CHECK((err && errno != ENOENT), "lookup with steps",
+			      "error: %s\n", strerror(errno));
+
+			total += count;
+			if (err)
+				break;
+
+		}
+
+		CHECK(total != max_entries, "lookup with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+
+		map_batch_verify(visited, max_entries, keys, values, is_pcpu);
+
+		total_success++;
+	}
+
+	CHECK(total_success == 0, "check total_success",
+	      "unexpected failure\n");
+
+	free(keys);
+	free(values);
+	free(visited);
+	close(map_fd);
+}
+
+static void array_map_batch_ops(void)
+{
+	__test_map_lookup_and_update_batch(false);
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void array_percpu_map_batch_ops(void)
+{
+	__test_map_lookup_and_update_batch(true);
+	printf("test_%s:PASS\n", __func__);
+}
+
+void test_array_map_batch_ops(void)
+{
+	nr_cpus = libbpf_num_possible_cpus();
+
+	CHECK(nr_cpus < 0, "nr_cpus checking",
+	      "error: get possible cpus failed");
+
+	array_map_batch_ops();
+	array_percpu_map_batch_ops();
+}
diff --git a/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c
new file mode 100644
index 000000000000..5da493b94ae2
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/htab_map_batch_ops.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook  */
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <bpf_util.h>
+#include <test_maps.h>
+
+static void map_batch_update(int map_fd, __u32 max_entries, int *keys,
+			     void *values, bool is_pcpu)
+{
+	typedef BPF_DECLARE_PERCPU(int, value);
+	value *v = NULL;
+	int i, j, err;
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	if (is_pcpu)
+		v = (value *)values;
+
+	for (i = 0; i < max_entries; i++) {
+		keys[i] = i + 1;
+		if (is_pcpu)
+			for (j = 0; j < bpf_num_possible_cpus(); j++)
+				bpf_percpu(v[i], j) = i + 2 + j;
+		else
+			((int *)values)[i] = i + 2;
+	}
+
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &opts);
+	CHECK(err, "bpf_map_update_batch()", "error:%s\n", strerror(errno));
+}
+
+static void map_batch_verify(int *visited, __u32 max_entries,
+			     int *keys, void *values, bool is_pcpu)
+{
+	typedef BPF_DECLARE_PERCPU(int, value);
+	value *v = NULL;
+	int i, j;
+
+	if (is_pcpu)
+		v = (value *)values;
+
+	memset(visited, 0, max_entries * sizeof(*visited));
+	for (i = 0; i < max_entries; i++) {
+
+		if (is_pcpu) {
+			for (j = 0; j < bpf_num_possible_cpus(); j++) {
+				CHECK(keys[i] + 1 + j != bpf_percpu(v[i], j),
+				      "key/value checking",
+				      "error: i %d j %d key %d value %d\n",
+				      i, j, keys[i], bpf_percpu(v[i],  j));
+			}
+		} else {
+			CHECK(keys[i] + 1 != ((int *)values)[i],
+			      "key/value checking",
+			      "error: i %d key %d value %d\n", i, keys[i],
+			      ((int *)values)[i]);
+		}
+
+		visited[i] = 1;
+
+	}
+	for (i = 0; i < max_entries; i++) {
+		CHECK(visited[i] != 1, "visited checking",
+		      "error: keys array at index %d missing\n", i);
+	}
+}
+
+void __test_map_lookup_and_delete_batch(bool is_pcpu)
+{
+	__u32 batch, count, total, total_success;
+	typedef BPF_DECLARE_PERCPU(int, value);
+	int map_fd, *keys, *visited, key;
+	const __u32 max_entries = 10;
+	value pcpu_values[max_entries];
+	int err, step, value_size;
+	bool nospace_err;
+	void *values;
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	map_fd = bpf_map_create(is_pcpu ? BPF_MAP_TYPE_PERCPU_HASH : BPF_MAP_TYPE_HASH,
+				"hash_map", sizeof(int), sizeof(int), max_entries, NULL);
+	CHECK(map_fd == -1,
+	      "bpf_map_create()", "error:%s\n", strerror(errno));
+
+	value_size = is_pcpu ? sizeof(value) : sizeof(int);
+	keys = malloc(max_entries * sizeof(int));
+	if (is_pcpu)
+		values = pcpu_values;
+	else
+		values = malloc(max_entries * sizeof(int));
+	visited = malloc(max_entries * sizeof(int));
+	CHECK(!keys || !values || !visited, "malloc()",
+	      "error:%s\n", strerror(errno));
+
+	/* test 1: lookup/delete an empty hash table, -ENOENT */
+	count = max_entries;
+	err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys,
+					      values, &count, &opts);
+	CHECK((err && errno != ENOENT), "empty map",
+	      "error: %s\n", strerror(errno));
+
+	/* populate elements to the map */
+	map_batch_update(map_fd, max_entries, keys, values, is_pcpu);
+
+	/* test 2: lookup/delete with count = 0, success */
+	count = 0;
+	err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys,
+					      values, &count, &opts);
+	CHECK(err, "count = 0", "error: %s\n", strerror(errno));
+
+	/* test 3: lookup/delete with count = max_entries, success */
+	memset(keys, 0, max_entries * sizeof(*keys));
+	memset(values, 0, max_entries * value_size);
+	count = max_entries;
+	err = bpf_map_lookup_and_delete_batch(map_fd, NULL, &batch, keys,
+					      values, &count, &opts);
+	CHECK((err && errno != ENOENT), "count = max_entries",
+	       "error: %s\n", strerror(errno));
+	CHECK(count != max_entries, "count = max_entries",
+	      "count = %u, max_entries = %u\n", count, max_entries);
+	map_batch_verify(visited, max_entries, keys, values, is_pcpu);
+
+	/* bpf_map_get_next_key() should return -ENOENT for an empty map. */
+	err = bpf_map_get_next_key(map_fd, NULL, &key);
+	CHECK(!err, "bpf_map_get_next_key()", "error: %s\n", strerror(errno));
+
+	/* test 4: lookup/delete in a loop with various steps. */
+	total_success = 0;
+	for (step = 1; step < max_entries; step++) {
+		map_batch_update(map_fd, max_entries, keys, values, is_pcpu);
+		memset(keys, 0, max_entries * sizeof(*keys));
+		memset(values, 0, max_entries * value_size);
+		total = 0;
+		/* iteratively lookup/delete elements with 'step'
+		 * elements each
+		 */
+		count = step;
+		nospace_err = false;
+		while (true) {
+			err = bpf_map_lookup_batch(map_fd,
+						   total ? &batch : NULL,
+						   &batch, keys + total,
+						   values +
+						   total * value_size,
+						   &count, &opts);
+			/* It is possible that we are failing due to buffer size
+			 * not big enough. In such cases, let us just exit and
+			 * go with large steps. Not that a buffer size with
+			 * max_entries should always work.
+			 */
+			if (err && errno == ENOSPC) {
+				nospace_err = true;
+				break;
+			}
+
+			CHECK((err && errno != ENOENT), "lookup with steps",
+			      "error: %s\n", strerror(errno));
+
+			total += count;
+			if (err)
+				break;
+
+		}
+		if (nospace_err == true)
+			continue;
+
+		CHECK(total != max_entries, "lookup with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+		map_batch_verify(visited, max_entries, keys, values, is_pcpu);
+
+		total = 0;
+		count = step;
+		while (total < max_entries) {
+			if (max_entries - total < step)
+				count = max_entries - total;
+			err = bpf_map_delete_batch(map_fd,
+						   keys + total,
+						   &count, &opts);
+			CHECK((err && errno != ENOENT), "delete batch",
+			      "error: %s\n", strerror(errno));
+			total += count;
+			if (err)
+				break;
+		}
+		CHECK(total != max_entries, "delete with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+
+		/* check map is empty, errno == ENOENT */
+		err = bpf_map_get_next_key(map_fd, NULL, &key);
+		CHECK(!err || errno != ENOENT, "bpf_map_get_next_key()",
+		      "error: %s\n", strerror(errno));
+
+		/* iteratively lookup/delete elements with 'step'
+		 * elements each
+		 */
+		map_batch_update(map_fd, max_entries, keys, values, is_pcpu);
+		memset(keys, 0, max_entries * sizeof(*keys));
+		memset(values, 0, max_entries * value_size);
+		total = 0;
+		count = step;
+		nospace_err = false;
+		while (true) {
+			err = bpf_map_lookup_and_delete_batch(map_fd,
+							total ? &batch : NULL,
+							&batch, keys + total,
+							values +
+							total * value_size,
+							&count, &opts);
+			/* It is possible that we are failing due to buffer size
+			 * not big enough. In such cases, let us just exit and
+			 * go with large steps. Not that a buffer size with
+			 * max_entries should always work.
+			 */
+			if (err && errno == ENOSPC) {
+				nospace_err = true;
+				break;
+			}
+
+			CHECK((err && errno != ENOENT), "lookup with steps",
+			      "error: %s\n", strerror(errno));
+
+			total += count;
+			if (err)
+				break;
+		}
+
+		if (nospace_err == true)
+			continue;
+
+		CHECK(total != max_entries, "lookup/delete with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+
+		map_batch_verify(visited, max_entries, keys, values, is_pcpu);
+		err = bpf_map_get_next_key(map_fd, NULL, &key);
+		CHECK(!err, "bpf_map_get_next_key()", "error: %s\n",
+		      strerror(errno));
+
+		total_success++;
+	}
+
+	CHECK(total_success == 0, "check total_success",
+	      "unexpected failure\n");
+	free(keys);
+	free(visited);
+	if (!is_pcpu)
+		free(values);
+	close(map_fd);
+}
+
+void htab_map_batch_ops(void)
+{
+	__test_map_lookup_and_delete_batch(false);
+	printf("test_%s:PASS\n", __func__);
+}
+
+void htab_percpu_map_batch_ops(void)
+{
+	__test_map_lookup_and_delete_batch(true);
+	printf("test_%s:PASS\n", __func__);
+}
+
+void test_htab_map_batch_ops(void)
+{
+	htab_map_batch_ops();
+	htab_percpu_map_batch_ops();
+}
diff --git a/tools/testing/selftests/bpf/map_tests/lpm_trie_map_basic_ops.c b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_basic_ops.c
new file mode 100644
index 000000000000..d32e4edac930
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_basic_ops.c
@@ -0,0 +1,1188 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Randomized tests for eBPF longest-prefix-match maps
+ *
+ * This program runs randomized tests against the lpm-bpf-map. It implements a
+ * "Trivial Longest Prefix Match" (tlpm) based on simple, linear, singly linked
+ * lists. The implementation should be pretty straightforward.
+ *
+ * Based on tlpm, this inserts randomized data into bpf-lpm-maps and verifies
+ * the trie-based bpf-map implementation behaves the same way as tlpm.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/bpf.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <endian.h>
+#include <arpa/inet.h>
+#include <sys/time.h>
+
+#include <bpf/bpf.h>
+#include <test_maps.h>
+
+#include "bpf_util.h"
+
+struct tlpm_node {
+	struct tlpm_node *next;
+	size_t n_bits;
+	uint8_t key[];
+};
+
+struct lpm_trie_bytes_key {
+	union {
+		struct bpf_lpm_trie_key_hdr hdr;
+		__u32 prefixlen;
+	};
+	unsigned char data[8];
+};
+
+struct lpm_trie_int_key {
+	union {
+		struct bpf_lpm_trie_key_hdr hdr;
+		__u32 prefixlen;
+	};
+	unsigned int data;
+};
+
+static struct tlpm_node *tlpm_match(struct tlpm_node *list,
+				    const uint8_t *key,
+				    size_t n_bits);
+
+static struct tlpm_node *tlpm_add(struct tlpm_node *list,
+				  const uint8_t *key,
+				  size_t n_bits)
+{
+	struct tlpm_node *node;
+	size_t n;
+
+	n = (n_bits + 7) / 8;
+
+	/* 'overwrite' an equivalent entry if one already exists */
+	node = tlpm_match(list, key, n_bits);
+	if (node && node->n_bits == n_bits) {
+		memcpy(node->key, key, n);
+		return list;
+	}
+
+	/* add new entry with @key/@n_bits to @list and return new head */
+
+	node = malloc(sizeof(*node) + n);
+	assert(node);
+
+	node->next = list;
+	node->n_bits = n_bits;
+	memcpy(node->key, key, n);
+
+	return node;
+}
+
+static void tlpm_clear(struct tlpm_node *list)
+{
+	struct tlpm_node *node;
+
+	/* free all entries in @list */
+
+	while ((node = list)) {
+		list = list->next;
+		free(node);
+	}
+}
+
+static struct tlpm_node *tlpm_match(struct tlpm_node *list,
+				    const uint8_t *key,
+				    size_t n_bits)
+{
+	struct tlpm_node *best = NULL;
+	size_t i;
+
+	/* Perform longest prefix-match on @key/@n_bits. That is, iterate all
+	 * entries and match each prefix against @key. Remember the "best"
+	 * entry we find (i.e., the longest prefix that matches) and return it
+	 * to the caller when done.
+	 */
+
+	for ( ; list; list = list->next) {
+		for (i = 0; i < n_bits && i < list->n_bits; ++i) {
+			if ((key[i / 8] & (1 << (7 - i % 8))) !=
+			    (list->key[i / 8] & (1 << (7 - i % 8))))
+				break;
+		}
+
+		if (i >= list->n_bits) {
+			if (!best || i > best->n_bits)
+				best = list;
+		}
+	}
+
+	return best;
+}
+
+static struct tlpm_node *tlpm_delete(struct tlpm_node *list,
+				     const uint8_t *key,
+				     size_t n_bits)
+{
+	struct tlpm_node *best = tlpm_match(list, key, n_bits);
+	struct tlpm_node *node;
+
+	if (!best || best->n_bits != n_bits)
+		return list;
+
+	if (best == list) {
+		node = best->next;
+		free(best);
+		return node;
+	}
+
+	for (node = list; node; node = node->next) {
+		if (node->next == best) {
+			node->next = best->next;
+			free(best);
+			return list;
+		}
+	}
+	/* should never get here */
+	assert(0);
+	return list;
+}
+
+static void test_lpm_basic(void)
+{
+	struct tlpm_node *list = NULL, *t1, *t2;
+
+	/* very basic, static tests to verify tlpm works as expected */
+
+	assert(!tlpm_match(list, (uint8_t[]){ 0xff }, 8));
+
+	t1 = list = tlpm_add(list, (uint8_t[]){ 0xff }, 8);
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff }, 8));
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff, 0xff }, 16));
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff, 0x00 }, 16));
+	assert(!tlpm_match(list, (uint8_t[]){ 0x7f }, 8));
+	assert(!tlpm_match(list, (uint8_t[]){ 0xfe }, 8));
+	assert(!tlpm_match(list, (uint8_t[]){ 0xff }, 7));
+
+	t2 = list = tlpm_add(list, (uint8_t[]){ 0xff, 0xff }, 16);
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff }, 8));
+	assert(t2 == tlpm_match(list, (uint8_t[]){ 0xff, 0xff }, 16));
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff, 0xff }, 15));
+	assert(!tlpm_match(list, (uint8_t[]){ 0x7f, 0xff }, 16));
+
+	list = tlpm_delete(list, (uint8_t[]){ 0xff, 0xff }, 16);
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff }, 8));
+	assert(t1 == tlpm_match(list, (uint8_t[]){ 0xff, 0xff }, 16));
+
+	list = tlpm_delete(list, (uint8_t[]){ 0xff }, 8);
+	assert(!tlpm_match(list, (uint8_t[]){ 0xff }, 8));
+
+	tlpm_clear(list);
+}
+
+static void test_lpm_order(void)
+{
+	struct tlpm_node *t1, *t2, *l1 = NULL, *l2 = NULL;
+	size_t i, j;
+
+	/* Verify the tlpm implementation works correctly regardless of the
+	 * order of entries. Insert a random set of entries into @l1, and copy
+	 * the same data in reverse order into @l2. Then verify a lookup of
+	 * random keys will yield the same result in both sets.
+	 */
+
+	for (i = 0; i < (1 << 12); ++i)
+		l1 = tlpm_add(l1, (uint8_t[]){
+					rand() % 0xff,
+					rand() % 0xff,
+				}, rand() % 16 + 1);
+
+	for (t1 = l1; t1; t1 = t1->next)
+		l2 = tlpm_add(l2, t1->key, t1->n_bits);
+
+	for (i = 0; i < (1 << 8); ++i) {
+		uint8_t key[] = { rand() % 0xff, rand() % 0xff };
+
+		t1 = tlpm_match(l1, key, 16);
+		t2 = tlpm_match(l2, key, 16);
+
+		assert(!t1 == !t2);
+		if (t1) {
+			assert(t1->n_bits == t2->n_bits);
+			for (j = 0; j < t1->n_bits; ++j)
+				assert((t1->key[j / 8] & (1 << (7 - j % 8))) ==
+				       (t2->key[j / 8] & (1 << (7 - j % 8))));
+		}
+	}
+
+	tlpm_clear(l1);
+	tlpm_clear(l2);
+}
+
+static void test_lpm_map(int keysize)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	volatile size_t n_matches, n_matches_after_delete;
+	size_t i, j, n_nodes, n_lookups;
+	struct tlpm_node *t, *list = NULL;
+	struct bpf_lpm_trie_key_u8 *key;
+	uint8_t *data, *value;
+	int r, map;
+
+	/* Compare behavior of tlpm vs. bpf-lpm. Create a randomized set of
+	 * prefixes and insert it into both tlpm and bpf-lpm. Then run some
+	 * randomized lookups and verify both maps return the same result.
+	 */
+
+	n_matches = 0;
+	n_matches_after_delete = 0;
+	n_nodes = 1 << 8;
+	n_lookups = 1 << 9;
+
+	data = alloca(keysize);
+	memset(data, 0, keysize);
+
+	value = alloca(keysize + 1);
+	memset(value, 0, keysize + 1);
+
+	key = alloca(sizeof(*key) + keysize);
+	memset(key, 0, sizeof(*key) + keysize);
+
+	map = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL,
+			     sizeof(*key) + keysize,
+			     keysize + 1,
+			     4096,
+			     &opts);
+	assert(map >= 0);
+
+	for (i = 0; i < n_nodes; ++i) {
+		for (j = 0; j < keysize; ++j)
+			value[j] = rand() & 0xff;
+		value[keysize] = rand() % (8 * keysize + 1);
+
+		list = tlpm_add(list, value, value[keysize]);
+
+		key->prefixlen = value[keysize];
+		memcpy(key->data, value, keysize);
+		r = bpf_map_update_elem(map, key, value, 0);
+		assert(!r);
+	}
+
+	for (i = 0; i < n_lookups; ++i) {
+		for (j = 0; j < keysize; ++j)
+			data[j] = rand() & 0xff;
+
+		t = tlpm_match(list, data, 8 * keysize);
+
+		key->prefixlen = 8 * keysize;
+		memcpy(key->data, data, keysize);
+		r = bpf_map_lookup_elem(map, key, value);
+		assert(!r || errno == ENOENT);
+		assert(!t == !!r);
+
+		if (t) {
+			++n_matches;
+			assert(t->n_bits == value[keysize]);
+			for (j = 0; j < t->n_bits; ++j)
+				assert((t->key[j / 8] & (1 << (7 - j % 8))) ==
+				       (value[j / 8] & (1 << (7 - j % 8))));
+		}
+	}
+
+	/* Remove the first half of the elements in the tlpm and the
+	 * corresponding nodes from the bpf-lpm.  Then run the same
+	 * large number of random lookups in both and make sure they match.
+	 * Note: we need to count the number of nodes actually inserted
+	 * since there may have been duplicates.
+	 */
+	for (i = 0, t = list; t; i++, t = t->next)
+		;
+	for (j = 0; j < i / 2; ++j) {
+		key->prefixlen = list->n_bits;
+		memcpy(key->data, list->key, keysize);
+		r = bpf_map_delete_elem(map, key);
+		assert(!r);
+		list = tlpm_delete(list, list->key, list->n_bits);
+		assert(list);
+	}
+	for (i = 0; i < n_lookups; ++i) {
+		for (j = 0; j < keysize; ++j)
+			data[j] = rand() & 0xff;
+
+		t = tlpm_match(list, data, 8 * keysize);
+
+		key->prefixlen = 8 * keysize;
+		memcpy(key->data, data, keysize);
+		r = bpf_map_lookup_elem(map, key, value);
+		assert(!r || errno == ENOENT);
+		assert(!t == !!r);
+
+		if (t) {
+			++n_matches_after_delete;
+			assert(t->n_bits == value[keysize]);
+			for (j = 0; j < t->n_bits; ++j)
+				assert((t->key[j / 8] & (1 << (7 - j % 8))) ==
+				       (value[j / 8] & (1 << (7 - j % 8))));
+		}
+	}
+
+	close(map);
+	tlpm_clear(list);
+
+	/* With 255 random nodes in the map, we are pretty likely to match
+	 * something on every lookup. For statistics, use this:
+	 *
+	 *     printf("          nodes: %zu\n"
+	 *            "        lookups: %zu\n"
+	 *            "        matches: %zu\n"
+	 *            "matches(delete): %zu\n",
+	 *            n_nodes, n_lookups, n_matches, n_matches_after_delete);
+	 */
+}
+
+/* Test the implementation with some 'real world' examples */
+
+static void test_lpm_ipaddr(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	struct bpf_lpm_trie_key_u8 *key_ipv4;
+	struct bpf_lpm_trie_key_u8 *key_ipv6;
+	size_t key_size_ipv4;
+	size_t key_size_ipv6;
+	int map_fd_ipv4;
+	int map_fd_ipv6;
+	__u64 value;
+
+	key_size_ipv4 = sizeof(*key_ipv4) + sizeof(__u32);
+	key_size_ipv6 = sizeof(*key_ipv6) + sizeof(__u32) * 4;
+	key_ipv4 = alloca(key_size_ipv4);
+	key_ipv6 = alloca(key_size_ipv6);
+
+	map_fd_ipv4 = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL,
+				     key_size_ipv4, sizeof(value),
+				     100, &opts);
+	assert(map_fd_ipv4 >= 0);
+
+	map_fd_ipv6 = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL,
+				     key_size_ipv6, sizeof(value),
+				     100, &opts);
+	assert(map_fd_ipv6 >= 0);
+
+	/* Fill data some IPv4 and IPv6 address ranges */
+	value = 1;
+	key_ipv4->prefixlen = 16;
+	inet_pton(AF_INET, "192.168.0.0", key_ipv4->data);
+	assert(bpf_map_update_elem(map_fd_ipv4, key_ipv4, &value, 0) == 0);
+
+	value = 2;
+	key_ipv4->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.0.0", key_ipv4->data);
+	assert(bpf_map_update_elem(map_fd_ipv4, key_ipv4, &value, 0) == 0);
+
+	value = 3;
+	key_ipv4->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.128.0", key_ipv4->data);
+	assert(bpf_map_update_elem(map_fd_ipv4, key_ipv4, &value, 0) == 0);
+
+	value = 5;
+	key_ipv4->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.1.0", key_ipv4->data);
+	assert(bpf_map_update_elem(map_fd_ipv4, key_ipv4, &value, 0) == 0);
+
+	value = 4;
+	key_ipv4->prefixlen = 23;
+	inet_pton(AF_INET, "192.168.0.0", key_ipv4->data);
+	assert(bpf_map_update_elem(map_fd_ipv4, key_ipv4, &value, 0) == 0);
+
+	value = 0xdeadbeef;
+	key_ipv6->prefixlen = 64;
+	inet_pton(AF_INET6, "2a00:1450:4001:814::200e", key_ipv6->data);
+	assert(bpf_map_update_elem(map_fd_ipv6, key_ipv6, &value, 0) == 0);
+
+	/* Set tprefixlen to maximum for lookups */
+	key_ipv4->prefixlen = 32;
+	key_ipv6->prefixlen = 128;
+
+	/* Test some lookups that should come back with a value */
+	inet_pton(AF_INET, "192.168.128.23", key_ipv4->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv4, key_ipv4, &value) == 0);
+	assert(value == 3);
+
+	inet_pton(AF_INET, "192.168.0.1", key_ipv4->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv4, key_ipv4, &value) == 0);
+	assert(value == 2);
+
+	inet_pton(AF_INET6, "2a00:1450:4001:814::", key_ipv6->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv6, key_ipv6, &value) == 0);
+	assert(value == 0xdeadbeef);
+
+	inet_pton(AF_INET6, "2a00:1450:4001:814::1", key_ipv6->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv6, key_ipv6, &value) == 0);
+	assert(value == 0xdeadbeef);
+
+	/* Test some lookups that should not match any entry */
+	inet_pton(AF_INET, "10.0.0.1", key_ipv4->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv4, key_ipv4, &value) == -ENOENT);
+
+	inet_pton(AF_INET, "11.11.11.11", key_ipv4->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv4, key_ipv4, &value) == -ENOENT);
+
+	inet_pton(AF_INET6, "2a00:ffff::", key_ipv6->data);
+	assert(bpf_map_lookup_elem(map_fd_ipv6, key_ipv6, &value) == -ENOENT);
+
+	close(map_fd_ipv4);
+	close(map_fd_ipv6);
+}
+
+static void test_lpm_delete(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	struct bpf_lpm_trie_key_u8 *key;
+	size_t key_size;
+	int map_fd;
+	__u64 value;
+
+	key_size = sizeof(*key) + sizeof(__u32);
+	key = alloca(key_size);
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL,
+				key_size, sizeof(value),
+				100, &opts);
+	assert(map_fd >= 0);
+
+	/* Add nodes:
+	 * 192.168.0.0/16   (1)
+	 * 192.168.0.0/24   (2)
+	 * 192.168.128.0/24 (3)
+	 * 192.168.1.0/24   (4)
+	 *
+	 *         (1)
+	 *        /   \
+         *     (IM)    (3)
+	 *    /   \
+         *   (2)  (4)
+	 */
+	value = 1;
+	key->prefixlen = 16;
+	inet_pton(AF_INET, "192.168.0.0", key->data);
+	assert(bpf_map_update_elem(map_fd, key, &value, 0) == 0);
+
+	value = 2;
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.0.0", key->data);
+	assert(bpf_map_update_elem(map_fd, key, &value, 0) == 0);
+
+	value = 3;
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.128.0", key->data);
+	assert(bpf_map_update_elem(map_fd, key, &value, 0) == 0);
+
+	value = 4;
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.1.0", key->data);
+	assert(bpf_map_update_elem(map_fd, key, &value, 0) == 0);
+
+	/* remove non-existent node */
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "10.0.0.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == -ENOENT);
+
+	key->prefixlen = 30; // unused prefix so far
+	inet_pton(AF_INET, "192.255.0.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == -ENOENT);
+
+	key->prefixlen = 16; // same prefix as the root node
+	inet_pton(AF_INET, "192.255.0.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == -ENOENT);
+
+	/* assert initial lookup */
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "192.168.0.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == 0);
+	assert(value == 2);
+
+	/* remove leaf node */
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.0.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == 0);
+
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "192.168.0.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == 0);
+	assert(value == 1);
+
+	/* remove leaf (and intermediary) node */
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.1.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == 0);
+
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "192.168.1.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == 0);
+	assert(value == 1);
+
+	/* remove root node */
+	key->prefixlen = 16;
+	inet_pton(AF_INET, "192.168.0.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == 0);
+
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "192.168.128.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == 0);
+	assert(value == 3);
+
+	/* remove last node */
+	key->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.128.0", key->data);
+	assert(bpf_map_delete_elem(map_fd, key) == 0);
+
+	key->prefixlen = 32;
+	inet_pton(AF_INET, "192.168.128.1", key->data);
+	assert(bpf_map_lookup_elem(map_fd, key, &value) == -ENOENT);
+
+	close(map_fd);
+}
+
+static void test_lpm_get_next_key(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	struct bpf_lpm_trie_key_u8 *key_p, *next_key_p;
+	size_t key_size;
+	__u32 value = 0;
+	int map_fd;
+
+	key_size = sizeof(*key_p) + sizeof(__u32);
+	key_p = alloca(key_size);
+	next_key_p = alloca(key_size);
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL, key_size, sizeof(value), 100, &opts);
+	assert(map_fd >= 0);
+
+	/* empty tree. get_next_key should return ENOENT */
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == -ENOENT);
+
+	/* get and verify the first key, get the second one should fail. */
+	key_p->prefixlen = 16;
+	inet_pton(AF_INET, "192.168.0.0", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 16 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168);
+
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -ENOENT);
+
+	/* no exact matching key should get the first one in post order. */
+	key_p->prefixlen = 8;
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 16 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168);
+
+	/* add one more element (total two) */
+	key_p->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.128.0", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168 && key_p->data[2] == 128);
+
+	memset(next_key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 16 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -ENOENT);
+
+	/* Add one more element (total three) */
+	key_p->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.0.0", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168 && key_p->data[2] == 0);
+
+	memset(next_key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 16 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -ENOENT);
+
+	/* Add one more element (total four) */
+	key_p->prefixlen = 24;
+	inet_pton(AF_INET, "192.168.1.0", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168 && key_p->data[2] == 0);
+
+	memset(next_key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 16 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -ENOENT);
+
+	/* Add one more element (total five) */
+	key_p->prefixlen = 28;
+	inet_pton(AF_INET, "192.168.1.128", key_p->data);
+	assert(bpf_map_update_elem(map_fd, key_p, &value, 0) == 0);
+
+	memset(key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, NULL, key_p) == 0);
+	assert(key_p->prefixlen == 24 && key_p->data[0] == 192 &&
+	       key_p->data[1] == 168 && key_p->data[2] == 0);
+
+	memset(next_key_p, 0, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 28 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1 &&
+	       next_key_p->data[3] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 1);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 128);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 16 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168);
+
+	memcpy(key_p, next_key_p, key_size);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == -ENOENT);
+
+	/* no exact matching key should return the first one in post order */
+	key_p->prefixlen = 22;
+	inet_pton(AF_INET, "192.168.1.0", key_p->data);
+	assert(bpf_map_get_next_key(map_fd, key_p, next_key_p) == 0);
+	assert(next_key_p->prefixlen == 24 && next_key_p->data[0] == 192 &&
+	       next_key_p->data[1] == 168 && next_key_p->data[2] == 0);
+
+	close(map_fd);
+}
+
+#define MAX_TEST_KEYS	4
+struct lpm_mt_test_info {
+	int cmd; /* 0: update, 1: delete, 2: lookup, 3: get_next_key */
+	int iter;
+	int map_fd;
+	struct {
+		__u32 prefixlen;
+		__u32 data;
+	} key[MAX_TEST_KEYS];
+};
+
+static void *lpm_test_command(void *arg)
+{
+	int i, j, ret, iter, key_size;
+	struct lpm_mt_test_info *info = arg;
+	struct bpf_lpm_trie_key_u8 *key_p;
+
+	key_size = sizeof(*key_p) + sizeof(__u32);
+	key_p = alloca(key_size);
+	for (iter = 0; iter < info->iter; iter++)
+		for (i = 0; i < MAX_TEST_KEYS; i++) {
+			/* first half of iterations in forward order,
+			 * and second half in backward order.
+			 */
+			j = (iter < (info->iter / 2)) ? i : MAX_TEST_KEYS - i - 1;
+			key_p->prefixlen = info->key[j].prefixlen;
+			memcpy(key_p->data, &info->key[j].data, sizeof(__u32));
+			if (info->cmd == 0) {
+				__u32 value = j;
+				/* update must succeed */
+				assert(bpf_map_update_elem(info->map_fd, key_p, &value, 0) == 0);
+			} else if (info->cmd == 1) {
+				ret = bpf_map_delete_elem(info->map_fd, key_p);
+				assert(ret == 0 || errno == ENOENT);
+			} else if (info->cmd == 2) {
+				__u32 value;
+				ret = bpf_map_lookup_elem(info->map_fd, key_p, &value);
+				assert(ret == 0 || errno == ENOENT);
+			} else {
+				struct bpf_lpm_trie_key_u8 *next_key_p = alloca(key_size);
+				ret = bpf_map_get_next_key(info->map_fd, key_p, next_key_p);
+				assert(ret == 0 || errno == ENOENT || errno == ENOMEM);
+			}
+		}
+
+	// Pass successful exit info back to the main thread
+	pthread_exit((void *)info);
+}
+
+static void setup_lpm_mt_test_info(struct lpm_mt_test_info *info, int map_fd)
+{
+	info->iter = 2000;
+	info->map_fd = map_fd;
+	info->key[0].prefixlen = 16;
+	inet_pton(AF_INET, "192.168.0.0", &info->key[0].data);
+	info->key[1].prefixlen = 24;
+	inet_pton(AF_INET, "192.168.0.0", &info->key[1].data);
+	info->key[2].prefixlen = 24;
+	inet_pton(AF_INET, "192.168.128.0", &info->key[2].data);
+	info->key[3].prefixlen = 24;
+	inet_pton(AF_INET, "192.168.1.0", &info->key[3].data);
+}
+
+static void test_lpm_multi_thread(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	struct lpm_mt_test_info info[4];
+	size_t key_size, value_size;
+	pthread_t thread_id[4];
+	int i, map_fd;
+	void *ret;
+
+	/* create a trie */
+	value_size = sizeof(__u32);
+	key_size = sizeof(struct bpf_lpm_trie_key_hdr) + value_size;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, NULL, key_size, value_size, 100, &opts);
+
+	/* create 4 threads to test update, delete, lookup and get_next_key */
+	setup_lpm_mt_test_info(&info[0], map_fd);
+	for (i = 0; i < 4; i++) {
+		if (i != 0)
+			memcpy(&info[i], &info[0], sizeof(info[i]));
+		info[i].cmd = i;
+		assert(pthread_create(&thread_id[i], NULL, &lpm_test_command, &info[i]) == 0);
+	}
+
+	for (i = 0; i < 4; i++)
+		assert(pthread_join(thread_id[i], &ret) == 0 && ret == (void *)&info[i]);
+
+	close(map_fd);
+}
+
+static int lpm_trie_create(unsigned int key_size, unsigned int value_size, unsigned int max_entries)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	int fd;
+
+	opts.map_flags = BPF_F_NO_PREALLOC;
+	fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, "lpm_trie", key_size, value_size, max_entries,
+			    &opts);
+	CHECK(fd < 0, "bpf_map_create", "error %d\n", errno);
+
+	return fd;
+}
+
+static void test_lpm_trie_update_flags(void)
+{
+	struct lpm_trie_int_key key;
+	unsigned int value, got;
+	int fd, err;
+
+	fd = lpm_trie_create(sizeof(key), sizeof(value), 3);
+
+	/* invalid flags (Error) */
+	key.prefixlen = 32;
+	key.data = 0;
+	value = 0;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_F_LOCK);
+	CHECK(err != -EINVAL, "invalid update flag", "error %d\n", err);
+
+	/* invalid flags (Error) */
+	key.prefixlen = 32;
+	key.data = 0;
+	value = 0;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST | BPF_EXIST);
+	CHECK(err != -EINVAL, "invalid update flag", "error %d\n", err);
+
+	/* overwrite an empty qp-trie (Error) */
+	key.prefixlen = 32;
+	key.data = 0;
+	value = 2;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
+	CHECK(err != -ENOENT, "overwrite empty qp-trie", "error %d\n", err);
+
+	/* add a new node */
+	key.prefixlen = 16;
+	key.data = 0;
+	value = 1;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* add the same node as new node (Error) */
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err != -EEXIST, "add new elem again", "error %d\n", err);
+
+	/* overwrite the existed node */
+	value = 4;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
+	CHECK(err, "overwrite elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* overwrite the node */
+	value = 1;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
+	CHECK(err, "update elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* overwrite a non-existent node which is the prefix of the first
+	 * node (Error).
+	 */
+	key.prefixlen = 8;
+	key.data = 0;
+	value = 2;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
+	CHECK(err != -ENOENT, "overwrite nonexistent elem", "error %d\n", err);
+
+	/* add a new node which is the prefix of the first node */
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup key", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* add another new node which will be the sibling of the first node */
+	key.prefixlen = 9;
+	key.data = htobe32(1 << 23);
+	value = 5;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup key", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* overwrite the third node */
+	value = 3;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
+	CHECK(err, "overwrite elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup key", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* delete the second node to make it an intermediate node */
+	key.prefixlen = 8;
+	key.data = 0;
+	err = bpf_map_delete_elem(fd, &key);
+	CHECK(err, "del elem", "error %d\n", err);
+
+	/* overwrite the intermediate node (Error) */
+	value = 2;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
+	CHECK(err != -ENOENT, "overwrite nonexistent elem", "error %d\n", err);
+
+	close(fd);
+}
+
+static void test_lpm_trie_update_full_map(void)
+{
+	struct lpm_trie_int_key key;
+	int value, got;
+	int fd, err;
+
+	fd = lpm_trie_create(sizeof(key), sizeof(value), 3);
+
+	/* add a new node */
+	key.prefixlen = 16;
+	key.data = 0;
+	value = 0;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* add new node */
+	key.prefixlen = 8;
+	key.data = 0;
+	value = 1;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* add new node */
+	key.prefixlen = 9;
+	key.data = htobe32(1 << 23);
+	value = 2;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+	CHECK(err, "add new elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* try to add more node (Error) */
+	key.prefixlen = 32;
+	key.data = 0;
+	value = 3;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
+	CHECK(err != -ENOSPC, "add to full trie", "error %d\n", err);
+
+	/* update the value of an existed node with BPF_EXIST */
+	key.prefixlen = 16;
+	key.data = 0;
+	value = 4;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_EXIST);
+	CHECK(err, "overwrite elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	/* update the value of an existed node with BPF_ANY */
+	key.prefixlen = 9;
+	key.data = htobe32(1 << 23);
+	value = 5;
+	err = bpf_map_update_elem(fd, &key, &value, BPF_ANY);
+	CHECK(err, "overwrite elem", "error %d\n", err);
+	got = 0;
+	err = bpf_map_lookup_elem(fd, &key, &got);
+	CHECK(err, "lookup elem", "error %d\n", err);
+	CHECK(got != value, "check value", "got %d exp %d\n", got, value);
+
+	close(fd);
+}
+
+static int cmp_str(const void *a, const void *b)
+{
+	const char *str_a = *(const char **)a, *str_b = *(const char **)b;
+
+	return strcmp(str_a, str_b);
+}
+
+/* Save strings in LPM trie. The trailing '\0' for each string will be
+ * accounted in the prefixlen. The strings returned during the iteration
+ * should be sorted as expected.
+ */
+static void test_lpm_trie_iterate_strs(void)
+{
+	static const char * const keys[] = {
+		"ab", "abO", "abc", "abo", "abS", "abcd",
+	};
+	const char *sorted_keys[ARRAY_SIZE(keys)];
+	struct lpm_trie_bytes_key key, next_key;
+	unsigned int value, got, i, j, len;
+	struct lpm_trie_bytes_key *cur;
+	int fd, err;
+
+	fd = lpm_trie_create(sizeof(key), sizeof(value), ARRAY_SIZE(keys));
+
+	for (i = 0; i < ARRAY_SIZE(keys); i++) {
+		unsigned int flags;
+
+		/* add i-th element */
+		flags = i % 2 ? BPF_NOEXIST : 0;
+		len = strlen(keys[i]);
+		/* include the trailing '\0' */
+		key.prefixlen = (len + 1) * 8;
+		memset(key.data, 0, sizeof(key.data));
+		memcpy(key.data, keys[i], len);
+		value = i + 100;
+		err = bpf_map_update_elem(fd, &key, &value, flags);
+		CHECK(err, "add elem", "#%u error %d\n", i, err);
+
+		err = bpf_map_lookup_elem(fd, &key, &got);
+		CHECK(err, "lookup elem", "#%u error %d\n", i, err);
+		CHECK(got != value, "lookup elem", "#%u expect %u got %u\n", i, value, got);
+
+		/* re-add i-th element (Error) */
+		err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+		CHECK(err != -EEXIST, "re-add elem", "#%u error %d\n", i, err);
+
+		/* Overwrite i-th element */
+		flags = i % 2 ? 0 : BPF_EXIST;
+		value = i;
+		err = bpf_map_update_elem(fd, &key, &value, flags);
+		CHECK(err, "update elem", "error %d\n", err);
+
+		/* Lookup #[0~i] elements */
+		for (j = 0; j <= i; j++) {
+			len = strlen(keys[j]);
+			key.prefixlen = (len + 1) * 8;
+			memset(key.data, 0, sizeof(key.data));
+			memcpy(key.data, keys[j], len);
+			err = bpf_map_lookup_elem(fd, &key, &got);
+			CHECK(err, "lookup elem", "#%u/%u error %d\n", i, j, err);
+			CHECK(got != j, "lookup elem", "#%u/%u expect %u got %u\n",
+			      i, j, value, got);
+		}
+	}
+
+	/* Add element to a full qp-trie (Error) */
+	key.prefixlen = sizeof(key.data) * 8;
+	memset(key.data, 0, sizeof(key.data));
+	value = 0;
+	err = bpf_map_update_elem(fd, &key, &value, 0);
+	CHECK(err != -ENOSPC, "add to full qp-trie", "error %d\n", err);
+
+	/* Iterate sorted elements: no deletion */
+	memcpy(sorted_keys, keys, sizeof(keys));
+	qsort(sorted_keys, ARRAY_SIZE(sorted_keys), sizeof(sorted_keys[0]), cmp_str);
+	cur = NULL;
+	for (i = 0; i < ARRAY_SIZE(sorted_keys); i++) {
+		len = strlen(sorted_keys[i]);
+		err = bpf_map_get_next_key(fd, cur, &next_key);
+		CHECK(err, "iterate", "#%u error %d\n", i, err);
+		CHECK(next_key.prefixlen != (len + 1) * 8, "iterate",
+		      "#%u invalid len %u expect %u\n",
+		      i, next_key.prefixlen, (len + 1) * 8);
+		CHECK(memcmp(sorted_keys[i], next_key.data, len + 1), "iterate",
+		      "#%u got %.*s exp %.*s\n", i, len, next_key.data, len, sorted_keys[i]);
+
+		cur = &next_key;
+	}
+	err = bpf_map_get_next_key(fd, cur, &next_key);
+	CHECK(err != -ENOENT, "more element", "error %d\n", err);
+
+	/* Iterate sorted elements: delete the found key after each iteration */
+	cur = NULL;
+	for (i = 0; i < ARRAY_SIZE(sorted_keys); i++) {
+		len = strlen(sorted_keys[i]);
+		err = bpf_map_get_next_key(fd, cur, &next_key);
+		CHECK(err, "iterate", "#%u error %d\n", i, err);
+		CHECK(next_key.prefixlen != (len + 1) * 8, "iterate",
+		      "#%u invalid len %u expect %u\n",
+		      i, next_key.prefixlen, (len + 1) * 8);
+		CHECK(memcmp(sorted_keys[i], next_key.data, len + 1), "iterate",
+		      "#%u got %.*s exp %.*s\n", i, len, next_key.data, len, sorted_keys[i]);
+
+		cur = &next_key;
+
+		err = bpf_map_delete_elem(fd, cur);
+		CHECK(err, "delete", "#%u error %d\n", i, err);
+	}
+	err = bpf_map_get_next_key(fd, cur, &next_key);
+	CHECK(err != -ENOENT, "non-empty qp-trie", "error %d\n", err);
+
+	close(fd);
+}
+
+/* Use the fixed prefixlen (32) and save integers in LPM trie. The iteration of
+ * LPM trie will return these integers in big-endian order, therefore, convert
+ * these integers to big-endian before update. After each iteration, delete the
+ * found key (the smallest integer) and expect the next iteration will return
+ * the second smallest number.
+ */
+static void test_lpm_trie_iterate_ints(void)
+{
+	struct lpm_trie_int_key key, next_key;
+	unsigned int i, max_entries;
+	struct lpm_trie_int_key *cur;
+	unsigned int *data_set;
+	int fd, err;
+	bool value;
+
+	max_entries = 4096;
+	data_set = calloc(max_entries, sizeof(*data_set));
+	CHECK(!data_set, "malloc", "no mem\n");
+	for (i = 0; i < max_entries; i++)
+		data_set[i] = i;
+
+	fd = lpm_trie_create(sizeof(key), sizeof(value), max_entries);
+	value = true;
+	for (i = 0; i < max_entries; i++) {
+		key.prefixlen = 32;
+		key.data = htobe32(data_set[i]);
+
+		err = bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST);
+		CHECK(err, "add elem", "#%u error %d\n", i, err);
+	}
+
+	cur = NULL;
+	for (i = 0; i < max_entries; i++) {
+		err = bpf_map_get_next_key(fd, cur, &next_key);
+		CHECK(err, "iterate", "#%u error %d\n", i, err);
+		CHECK(next_key.prefixlen != 32, "iterate", "#%u invalid len %u\n",
+		      i, next_key.prefixlen);
+		CHECK(be32toh(next_key.data) != data_set[i], "iterate", "#%u got 0x%x exp 0x%x\n",
+		      i, be32toh(next_key.data), data_set[i]);
+		cur = &next_key;
+
+		/*
+		 * Delete the minimal key, the next call of bpf_get_next_key()
+		 * will return the second minimal key.
+		 */
+		err = bpf_map_delete_elem(fd, &next_key);
+		CHECK(err, "del elem", "#%u elem error %d\n", i, err);
+	}
+	err = bpf_map_get_next_key(fd, cur, &next_key);
+	CHECK(err != -ENOENT, "more element", "error %d\n", err);
+
+	err = bpf_map_get_next_key(fd, NULL, &next_key);
+	CHECK(err != -ENOENT, "no-empty qp-trie", "error %d\n", err);
+
+	free(data_set);
+
+	close(fd);
+}
+
+void test_lpm_trie_map_basic_ops(void)
+{
+	int i;
+
+	/* we want predictable, pseudo random tests */
+	srand(0xf00ba1);
+
+	test_lpm_basic();
+	test_lpm_order();
+
+	/* Test with 8, 16, 24, 32, ... 128 bit prefix length */
+	for (i = 1; i <= 16; ++i)
+		test_lpm_map(i);
+
+	test_lpm_ipaddr();
+	test_lpm_delete();
+	test_lpm_get_next_key();
+	test_lpm_multi_thread();
+
+	test_lpm_trie_update_flags();
+	test_lpm_trie_update_full_map();
+	test_lpm_trie_iterate_strs();
+	test_lpm_trie_iterate_ints();
+
+	printf("%s: PASS\n", __func__);
+}
diff --git a/tools/testing/selftests/bpf/map_tests/lpm_trie_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_batch_ops.c
new file mode 100644
index 000000000000..fe3e19f96244
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_batch_ops.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <arpa/inet.h>
+#include <linux/bpf.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <test_maps.h>
+
+struct test_lpm_key {
+	__u32 prefix;
+	struct in_addr ipv4;
+};
+
+static void map_batch_update(int map_fd, __u32 max_entries,
+			     struct test_lpm_key *keys, int *values)
+{
+	__u32 i;
+	int err;
+	char buff[16] = { 0 };
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	for (i = 0; i < max_entries; i++) {
+		keys[i].prefix = 32;
+		snprintf(buff, 16, "192.168.1.%d", i + 1);
+		inet_pton(AF_INET, buff, &keys[i].ipv4);
+		values[i] = i + 1;
+	}
+
+	err = bpf_map_update_batch(map_fd, keys, values, &max_entries, &opts);
+	CHECK(err, "bpf_map_update_batch()", "error:%s\n", strerror(errno));
+}
+
+static void map_batch_verify(int *visited, __u32 max_entries,
+			     struct test_lpm_key *keys, int *values)
+{
+	char buff[16] = { 0 };
+	int lower_byte = 0;
+	__u32 i;
+
+	memset(visited, 0, max_entries * sizeof(*visited));
+	for (i = 0; i < max_entries; i++) {
+		inet_ntop(AF_INET, &keys[i].ipv4, buff, 32);
+		CHECK(sscanf(buff, "192.168.1.%d", &lower_byte) == EOF,
+		      "sscanf()", "error: i %d\n", i);
+		CHECK(lower_byte != values[i], "key/value checking",
+		      "error: i %d key %s value %d\n", i, buff, values[i]);
+		visited[i] = 1;
+	}
+	for (i = 0; i < max_entries; i++) {
+		CHECK(visited[i] != 1, "visited checking",
+		      "error: keys array at index %d missing\n", i);
+	}
+}
+
+void test_lpm_trie_map_batch_ops(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, create_opts, .map_flags = BPF_F_NO_PREALLOC);
+	struct test_lpm_key *keys, key;
+	int map_fd, *values, *visited;
+	__u32 step, count, total, total_success;
+	const __u32 max_entries = 10;
+	__u64 batch = 0;
+	int err;
+	DECLARE_LIBBPF_OPTS(bpf_map_batch_opts, opts,
+		.elem_flags = 0,
+		.flags = 0,
+	);
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, "lpm_trie_map",
+				sizeof(struct test_lpm_key), sizeof(int),
+				max_entries, &create_opts);
+	CHECK(map_fd == -1, "bpf_map_create()", "error:%s\n",
+	      strerror(errno));
+
+	keys = malloc(max_entries * sizeof(struct test_lpm_key));
+	values = malloc(max_entries * sizeof(int));
+	visited = malloc(max_entries * sizeof(int));
+	CHECK(!keys || !values || !visited, "malloc()", "error:%s\n",
+	      strerror(errno));
+
+	total_success = 0;
+	for (step = 1; step < max_entries; step++) {
+		map_batch_update(map_fd, max_entries, keys, values);
+		map_batch_verify(visited, max_entries, keys, values);
+		memset(keys, 0, max_entries * sizeof(*keys));
+		memset(values, 0, max_entries * sizeof(*values));
+		batch = 0;
+		total = 0;
+		/* iteratively lookup/delete elements with 'step'
+		 * elements each.
+		 */
+		count = step;
+		while (true) {
+			err = bpf_map_lookup_batch(map_fd,
+				total ? &batch : NULL, &batch,
+				keys + total, values + total, &count, &opts);
+
+			CHECK((err && errno != ENOENT), "lookup with steps",
+			      "error: %s\n", strerror(errno));
+
+			total += count;
+			if (err)
+				break;
+		}
+
+		CHECK(total != max_entries, "lookup with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+
+		map_batch_verify(visited, max_entries, keys, values);
+
+		total = 0;
+		count = step;
+		while (total < max_entries) {
+			if (max_entries - total < step)
+				count = max_entries - total;
+			err = bpf_map_delete_batch(map_fd, keys + total, &count,
+						   &opts);
+			CHECK((err && errno != ENOENT), "delete batch",
+			      "error: %s\n", strerror(errno));
+			total += count;
+			if (err)
+				break;
+		}
+		CHECK(total != max_entries, "delete with steps",
+		      "total = %u, max_entries = %u\n", total, max_entries);
+
+		/* check map is empty, errno == ENOENT */
+		err = bpf_map_get_next_key(map_fd, NULL, &key);
+		CHECK(!err || errno != ENOENT, "bpf_map_get_next_key()",
+		      "error: %s\n", strerror(errno));
+
+		total_success++;
+	}
+
+	CHECK(total_success == 0, "check total_success",
+	      "unexpected failure\n");
+
+	printf("%s:PASS\n", __func__);
+
+	free(keys);
+	free(values);
+	free(visited);
+	close(map_fd);
+}
diff --git a/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c
new file mode 100644
index 000000000000..0ba015686492
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/lpm_trie_map_get_next_key.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <linux/bpf.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <test_maps.h>
+
+struct test_lpm_key {
+	__u32 prefix;
+	__u32 data;
+};
+
+struct get_next_key_ctx {
+	struct test_lpm_key key;
+	bool start;
+	bool stop;
+	int map_fd;
+	int loop;
+};
+
+static void *get_next_key_fn(void *arg)
+{
+	struct get_next_key_ctx *ctx = arg;
+	struct test_lpm_key next_key;
+	int i = 0;
+
+	while (!ctx->start)
+		usleep(1);
+
+	while (!ctx->stop && i++ < ctx->loop)
+		bpf_map_get_next_key(ctx->map_fd, &ctx->key, &next_key);
+
+	return NULL;
+}
+
+static void abort_get_next_key(struct get_next_key_ctx *ctx, pthread_t *tids,
+			       unsigned int nr)
+{
+	unsigned int i;
+
+	ctx->stop = true;
+	ctx->start = true;
+	for (i = 0; i < nr; i++)
+		pthread_join(tids[i], NULL);
+}
+
+/* This test aims to prevent regression of future. As long as the kernel does
+ * not panic, it is considered as success.
+ */
+void test_lpm_trie_map_get_next_key(void)
+{
+#define MAX_NR_THREADS 8
+	LIBBPF_OPTS(bpf_map_create_opts, create_opts,
+		    .map_flags = BPF_F_NO_PREALLOC);
+	struct test_lpm_key key = {};
+	__u32 val = 0;
+	int map_fd;
+	const __u32 max_prefixlen = 8 * (sizeof(key) - sizeof(key.prefix));
+	const __u32 max_entries = max_prefixlen + 1;
+	unsigned int i, nr = MAX_NR_THREADS, loop = 65536;
+	pthread_t tids[MAX_NR_THREADS];
+	struct get_next_key_ctx ctx;
+	int err;
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_LPM_TRIE, "lpm_trie_map",
+				sizeof(struct test_lpm_key), sizeof(__u32),
+				max_entries, &create_opts);
+	CHECK(map_fd == -1, "bpf_map_create()", "error:%s\n",
+	      strerror(errno));
+
+	for (i = 0; i <= max_prefixlen; i++) {
+		key.prefix = i;
+		err = bpf_map_update_elem(map_fd, &key, &val, BPF_ANY);
+		CHECK(err, "bpf_map_update_elem()", "error:%s\n",
+		      strerror(errno));
+	}
+
+	ctx.start = false;
+	ctx.stop = false;
+	ctx.map_fd = map_fd;
+	ctx.loop = loop;
+	memcpy(&ctx.key, &key, sizeof(key));
+
+	for (i = 0; i < nr; i++) {
+		err = pthread_create(&tids[i], NULL, get_next_key_fn, &ctx);
+		if (err) {
+			abort_get_next_key(&ctx, tids, i);
+			CHECK(err, "pthread_create", "error %d\n", err);
+		}
+	}
+
+	ctx.start = true;
+	for (i = 0; i < nr; i++)
+		pthread_join(tids[i], NULL);
+
+	printf("%s:PASS\n", __func__);
+
+	close(map_fd);
+}
diff --git a/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c b/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c
new file mode 100644
index 000000000000..79c3ccadb962
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/map_in_map_batch_ops.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <test_maps.h>
+
+#define OUTER_MAP_ENTRIES 10
+
+static __u32 get_map_id_from_fd(int map_fd)
+{
+	struct bpf_map_info map_info = {};
+	uint32_t info_len = sizeof(map_info);
+	int ret;
+
+	ret = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len);
+	CHECK(ret < 0, "Finding map info failed", "error:%s\n",
+	      strerror(errno));
+
+	return map_info.id;
+}
+
+/* This creates number of OUTER_MAP_ENTRIES maps that will be stored
+ * in outer map and return the created map_fds
+ */
+static void create_inner_maps(enum bpf_map_type map_type,
+			      __u32 *inner_map_fds)
+{
+	int map_fd, map_index, ret;
+	__u32 map_key = 0, map_id;
+	char map_name[16];
+
+	for (map_index = 0; map_index < OUTER_MAP_ENTRIES; map_index++) {
+		memset(map_name, 0, sizeof(map_name));
+		snprintf(map_name, sizeof(map_name), "inner_map_fd_%d", map_index);
+		map_fd = bpf_map_create(map_type, map_name, sizeof(__u32),
+					sizeof(__u32), 1, NULL);
+		CHECK(map_fd < 0,
+		      "inner bpf_map_create() failed",
+		      "map_type=(%d) map_name(%s), error:%s\n",
+		      map_type, map_name, strerror(errno));
+
+		/* keep track of the inner map fd as it is required
+		 * to add records in outer map
+		 */
+		inner_map_fds[map_index] = map_fd;
+
+		/* Add entry into this created map
+		 * eg: map1 key = 0, value = map1's map id
+		 *     map2 key = 0, value = map2's map id
+		 */
+		map_id = get_map_id_from_fd(map_fd);
+		ret = bpf_map_update_elem(map_fd, &map_key, &map_id, 0);
+		CHECK(ret != 0,
+		      "bpf_map_update_elem failed",
+		      "map_type=(%d) map_name(%s), error:%s\n",
+		      map_type, map_name, strerror(errno));
+	}
+}
+
+static int create_outer_map(enum bpf_map_type map_type, __u32 inner_map_fd)
+{
+	int outer_map_fd;
+	LIBBPF_OPTS(bpf_map_create_opts, attr);
+
+	attr.inner_map_fd = inner_map_fd;
+	outer_map_fd = bpf_map_create(map_type, "outer_map", sizeof(__u32),
+				      sizeof(__u32), OUTER_MAP_ENTRIES,
+				      &attr);
+	CHECK(outer_map_fd < 0,
+	      "outer bpf_map_create()",
+	      "map_type=(%d), error:%s\n",
+	      map_type, strerror(errno));
+
+	return outer_map_fd;
+}
+
+static void validate_fetch_results(int outer_map_fd,
+				   __u32 *fetched_keys, __u32 *fetched_values,
+				   __u32 max_entries_fetched)
+{
+	__u32 inner_map_key, inner_map_value;
+	int inner_map_fd, entry, err;
+	__u32 outer_map_value;
+
+	for (entry = 0; entry < max_entries_fetched; ++entry) {
+		outer_map_value = fetched_values[entry];
+		inner_map_fd = bpf_map_get_fd_by_id(outer_map_value);
+		CHECK(inner_map_fd < 0,
+		      "Failed to get inner map fd",
+		      "from id(%d), error=%s\n",
+		      outer_map_value, strerror(errno));
+		err = bpf_map_get_next_key(inner_map_fd, NULL, &inner_map_key);
+		CHECK(err != 0,
+		      "Failed to get inner map key",
+		      "error=%s\n", strerror(errno));
+
+		err = bpf_map_lookup_elem(inner_map_fd, &inner_map_key,
+					  &inner_map_value);
+
+		close(inner_map_fd);
+
+		CHECK(err != 0,
+		      "Failed to get inner map value",
+		      "for key(%d), error=%s\n",
+		      inner_map_key, strerror(errno));
+
+		/* Actual value validation */
+		CHECK(outer_map_value != inner_map_value,
+		      "Failed to validate inner map value",
+		      "fetched(%d) and lookedup(%d)!\n",
+		      outer_map_value, inner_map_value);
+	}
+}
+
+static void fetch_and_validate(int outer_map_fd,
+			       struct bpf_map_batch_opts *opts,
+			       __u32 batch_size, bool delete_entries,
+			       bool has_holes)
+{
+	int err, max_entries = OUTER_MAP_ENTRIES - !!has_holes;
+	__u32 *fetched_keys, *fetched_values, total_fetched = 0, i;
+	__u32 batch_key = 0, fetch_count, step_size = batch_size;
+	__u32 value_size = sizeof(__u32);
+
+	/* Total entries needs to be fetched */
+	fetched_keys = calloc(max_entries, value_size);
+	fetched_values = calloc(max_entries, value_size);
+	CHECK((!fetched_keys || !fetched_values),
+	      "Memory allocation failed for fetched_keys or fetched_values",
+	      "error=%s\n", strerror(errno));
+
+	/* hash map may not always return full batch */
+	for (i = 0; i < OUTER_MAP_ENTRIES; i++) {
+		fetch_count = step_size;
+		err = delete_entries
+		      ? bpf_map_lookup_and_delete_batch(outer_map_fd,
+				      total_fetched ? &batch_key : NULL,
+				      &batch_key,
+				      fetched_keys + total_fetched,
+				      fetched_values + total_fetched,
+				      &fetch_count, opts)
+		      : bpf_map_lookup_batch(outer_map_fd,
+				      total_fetched ? &batch_key : NULL,
+				      &batch_key,
+				      fetched_keys + total_fetched,
+				      fetched_values + total_fetched,
+				      &fetch_count, opts);
+
+		if (err && errno == ENOSPC) {
+			/* Fetch again with higher batch size */
+			total_fetched = 0;
+			step_size += batch_size;
+			continue;
+		}
+
+		CHECK((err < 0 && (errno != ENOENT)),
+		      "lookup with steps failed",
+		      "error: %s\n", strerror(errno));
+
+		/* Update the total fetched number */
+		total_fetched += fetch_count;
+		if (err)
+			break;
+	}
+
+	CHECK((total_fetched != max_entries),
+	      "Unable to fetch expected entries !",
+	      "total_fetched(%d) and max_entries(%d) error: (%d):%s\n",
+	      total_fetched, max_entries, errno, strerror(errno));
+
+	/* validate the fetched entries */
+	validate_fetch_results(outer_map_fd, fetched_keys,
+			       fetched_values, total_fetched);
+	printf("batch_op(%s) is successful with batch_size(%d)\n",
+	       delete_entries ? "LOOKUP_AND_DELETE" : "LOOKUP", batch_size);
+
+	free(fetched_keys);
+	free(fetched_values);
+}
+
+static void _map_in_map_batch_ops(enum bpf_map_type outer_map_type,
+				  enum bpf_map_type inner_map_type,
+				  bool has_holes)
+{
+	__u32 max_entries = OUTER_MAP_ENTRIES - !!has_holes;
+	__u32 *outer_map_keys, *inner_map_fds;
+	LIBBPF_OPTS(bpf_map_batch_opts, opts);
+	__u32 value_size = sizeof(__u32);
+	int batch_size[2] = {5, 10};
+	__u32 map_index, op_index;
+	int outer_map_fd, ret;
+
+	outer_map_keys = calloc(OUTER_MAP_ENTRIES, value_size);
+	inner_map_fds = calloc(OUTER_MAP_ENTRIES, value_size);
+	CHECK((!outer_map_keys || !inner_map_fds),
+	      "Memory allocation failed for outer_map_keys or inner_map_fds",
+	      "error=%s\n", strerror(errno));
+
+	create_inner_maps(inner_map_type, inner_map_fds);
+
+	outer_map_fd = create_outer_map(outer_map_type, *inner_map_fds);
+	/* create outer map keys */
+	for (map_index = 0; map_index < max_entries; map_index++)
+		outer_map_keys[map_index] =
+			((outer_map_type == BPF_MAP_TYPE_ARRAY_OF_MAPS)
+			 ? 9 : 1000) - map_index;
+
+	/* This condition is only meaningful for array of maps.
+	 *
+	 * max_entries == OUTER_MAP_ENTRIES - 1 if it is true. Say
+	 * max_entries is short for n, then outer_map_keys looks like:
+	 *
+	 *   [n, n-1, ... 2, 1]
+	 *
+	 * We change it to
+	 *
+	 *   [n, n-1, ... 2, 0]
+	 *
+	 * So it will leave key 1 as a hole. It will serve to test the
+	 * correctness when batch on an array: a "non-exist" key might be
+	 * actually allocated and returned from key iteration.
+	 */
+	if (has_holes)
+		outer_map_keys[max_entries - 1]--;
+
+	/* batch operation - map_update */
+	ret = bpf_map_update_batch(outer_map_fd, outer_map_keys,
+				   inner_map_fds, &max_entries, &opts);
+	CHECK(ret != 0,
+	      "Failed to update the outer map batch ops",
+	      "error=%s\n", strerror(errno));
+
+	/* batch operation - map_lookup */
+	for (op_index = 0; op_index < 2; ++op_index)
+		fetch_and_validate(outer_map_fd, &opts,
+				   batch_size[op_index], false,
+				   has_holes);
+
+	/* batch operation - map_lookup_delete */
+	if (outer_map_type == BPF_MAP_TYPE_HASH_OF_MAPS)
+		fetch_and_validate(outer_map_fd, &opts,
+				   max_entries, true /*delete*/,
+				   has_holes);
+
+	/* close all map fds */
+	for (map_index = 0; map_index < OUTER_MAP_ENTRIES; map_index++)
+		close(inner_map_fds[map_index]);
+	close(outer_map_fd);
+
+	free(inner_map_fds);
+	free(outer_map_keys);
+}
+
+void test_map_in_map_batch_ops_array(void)
+{
+	_map_in_map_batch_ops(BPF_MAP_TYPE_ARRAY_OF_MAPS, BPF_MAP_TYPE_ARRAY, false);
+	printf("%s:PASS with inner ARRAY map\n", __func__);
+	_map_in_map_batch_ops(BPF_MAP_TYPE_ARRAY_OF_MAPS, BPF_MAP_TYPE_HASH, false);
+	printf("%s:PASS with inner HASH map\n", __func__);
+	_map_in_map_batch_ops(BPF_MAP_TYPE_ARRAY_OF_MAPS, BPF_MAP_TYPE_ARRAY, true);
+	printf("%s:PASS with inner ARRAY map with holes\n", __func__);
+	_map_in_map_batch_ops(BPF_MAP_TYPE_ARRAY_OF_MAPS, BPF_MAP_TYPE_HASH, true);
+	printf("%s:PASS with inner HASH map with holes\n", __func__);
+}
+
+void test_map_in_map_batch_ops_hash(void)
+{
+	_map_in_map_batch_ops(BPF_MAP_TYPE_HASH_OF_MAPS, BPF_MAP_TYPE_ARRAY, false);
+	printf("%s:PASS with inner ARRAY map\n", __func__);
+	_map_in_map_batch_ops(BPF_MAP_TYPE_HASH_OF_MAPS, BPF_MAP_TYPE_HASH, false);
+	printf("%s:PASS with inner HASH map\n", __func__);
+}
diff --git a/tools/testing/selftests/bpf/map_tests/map_percpu_stats.c b/tools/testing/selftests/bpf/map_tests/map_percpu_stats.c
new file mode 100644
index 000000000000..1c7c04288eff
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/map_percpu_stats.c
@@ -0,0 +1,488 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+
+#include <errno.h>
+#include <unistd.h>
+#include <pthread.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <bpf_util.h>
+#include <test_maps.h>
+
+#include "map_percpu_stats.skel.h"
+
+#define MAX_ENTRIES			16384
+#define MAX_ENTRIES_HASH_OF_MAPS	64
+#define N_THREADS			8
+#define MAX_MAP_KEY_SIZE		4
+#define PCPU_MIN_UNIT_SIZE		32768
+
+static void map_info(int map_fd, struct bpf_map_info *info)
+{
+	__u32 len = sizeof(*info);
+	int ret;
+
+	memset(info, 0, sizeof(*info));
+
+	ret = bpf_obj_get_info_by_fd(map_fd, info, &len);
+	CHECK(ret < 0, "bpf_obj_get_info_by_fd", "error: %s\n", strerror(errno));
+}
+
+static const char *map_type_to_s(__u32 type)
+{
+	switch (type) {
+	case BPF_MAP_TYPE_HASH:
+		return "HASH";
+	case BPF_MAP_TYPE_PERCPU_HASH:
+		return "PERCPU_HASH";
+	case BPF_MAP_TYPE_LRU_HASH:
+		return "LRU_HASH";
+	case BPF_MAP_TYPE_LRU_PERCPU_HASH:
+		return "LRU_PERCPU_HASH";
+	case BPF_MAP_TYPE_HASH_OF_MAPS:
+		return "BPF_MAP_TYPE_HASH_OF_MAPS";
+	default:
+		return "<define-me>";
+	}
+}
+
+static __u32 map_count_elements(__u32 type, int map_fd)
+{
+	__u32 key = -1;
+	int n = 0;
+
+	while (!bpf_map_get_next_key(map_fd, &key, &key))
+		n++;
+	return n;
+}
+
+#define BATCH	true
+
+static void delete_and_lookup_batch(int map_fd, void *keys, __u32 count)
+{
+	static __u8 values[(8 << 10) * MAX_ENTRIES];
+	void *in_batch = NULL, *out_batch;
+	__u32 save_count = count;
+	int ret;
+
+	ret = bpf_map_lookup_and_delete_batch(map_fd,
+					      &in_batch, &out_batch,
+					      keys, values, &count,
+					      NULL);
+
+	/*
+	 * Despite what uapi header says, lookup_and_delete_batch will return
+	 * -ENOENT in case we successfully have deleted all elements, so check
+	 * this separately
+	 */
+	CHECK(ret < 0 && (errno != ENOENT || !count), "bpf_map_lookup_and_delete_batch",
+		       "error: %s\n", strerror(errno));
+
+	CHECK(count != save_count,
+			"bpf_map_lookup_and_delete_batch",
+			"deleted not all elements: removed=%u expected=%u\n",
+			count, save_count);
+}
+
+static void delete_all_elements(__u32 type, int map_fd, bool batch)
+{
+	static __u8 val[8 << 10]; /* enough for 1024 CPUs */
+	__u32 key = -1;
+	void *keys;
+	__u32 i, n;
+	int ret;
+
+	keys = calloc(MAX_MAP_KEY_SIZE, MAX_ENTRIES);
+	CHECK(!keys, "calloc", "error: %s\n", strerror(errno));
+
+	for (n = 0; !bpf_map_get_next_key(map_fd, &key, &key); n++)
+		memcpy(keys + n*MAX_MAP_KEY_SIZE, &key, MAX_MAP_KEY_SIZE);
+
+	if (batch) {
+		/* Can't mix delete_batch and delete_and_lookup_batch because
+		 * they have different semantics in relation to the keys
+		 * argument. However, delete_batch utilize map_delete_elem,
+		 * so we actually test it in non-batch scenario */
+		delete_and_lookup_batch(map_fd, keys, n);
+	} else {
+		/* Intentionally mix delete and lookup_and_delete so we can test both */
+		for (i = 0; i < n; i++) {
+			void *keyp = keys + i*MAX_MAP_KEY_SIZE;
+
+			if (i % 2 || type == BPF_MAP_TYPE_HASH_OF_MAPS) {
+				ret = bpf_map_delete_elem(map_fd, keyp);
+				CHECK(ret < 0, "bpf_map_delete_elem",
+					       "error: key %u: %s\n", i, strerror(errno));
+			} else {
+				ret = bpf_map_lookup_and_delete_elem(map_fd, keyp, val);
+				CHECK(ret < 0, "bpf_map_lookup_and_delete_elem",
+					       "error: key %u: %s\n", i, strerror(errno));
+			}
+		}
+	}
+
+	free(keys);
+}
+
+static bool is_lru(__u32 map_type)
+{
+	return map_type == BPF_MAP_TYPE_LRU_HASH ||
+	       map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH;
+}
+
+static bool is_percpu(__u32 map_type)
+{
+	return map_type == BPF_MAP_TYPE_PERCPU_HASH ||
+	       map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH;
+}
+
+struct upsert_opts {
+	__u32 map_type;
+	int map_fd;
+	__u32 n;
+	bool retry_for_nomem;
+};
+
+static int create_small_hash(void)
+{
+	int map_fd;
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_HASH, "small", 4, 4, 4, NULL);
+	CHECK(map_fd < 0, "bpf_map_create()", "error:%s (name=%s)\n",
+			strerror(errno), "small");
+
+	return map_fd;
+}
+
+static bool retry_for_nomem_fn(int err)
+{
+	return err == ENOMEM;
+}
+
+static void *patch_map_thread(void *arg)
+{
+	/* 8KB is enough for 1024 CPUs. And it is shared between N_THREADS. */
+	static __u8 blob[8 << 10];
+	struct upsert_opts *opts = arg;
+	void *val_ptr;
+	int val;
+	int ret;
+	int i;
+
+	for (i = 0; i < opts->n; i++) {
+		if (opts->map_type == BPF_MAP_TYPE_HASH_OF_MAPS) {
+			val = create_small_hash();
+			val_ptr = &val;
+		} else if (is_percpu(opts->map_type)) {
+			val_ptr = blob;
+		} else {
+			val = rand();
+			val_ptr = &val;
+		}
+
+		/* 2 seconds may be enough ? */
+		if (opts->retry_for_nomem)
+			ret = map_update_retriable(opts->map_fd, &i, val_ptr, 0,
+						   40, retry_for_nomem_fn);
+		else
+			ret = bpf_map_update_elem(opts->map_fd, &i, val_ptr, 0);
+		CHECK(ret < 0, "bpf_map_update_elem", "key=%d error: %s\n", i, strerror(errno));
+
+		if (opts->map_type == BPF_MAP_TYPE_HASH_OF_MAPS)
+			close(val);
+	}
+	return NULL;
+}
+
+static void upsert_elements(struct upsert_opts *opts)
+{
+	pthread_t threads[N_THREADS];
+	int ret;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(threads); i++) {
+		ret = pthread_create(&i[threads], NULL, patch_map_thread, opts);
+		CHECK(ret != 0, "pthread_create", "error: %s\n", strerror(ret));
+	}
+
+	for (i = 0; i < ARRAY_SIZE(threads); i++) {
+		ret = pthread_join(i[threads], NULL);
+		CHECK(ret != 0, "pthread_join", "error: %s\n", strerror(ret));
+	}
+}
+
+static __u32 read_cur_elements(int iter_fd)
+{
+	char buf[64];
+	ssize_t n;
+	__u32 ret;
+
+	n = read(iter_fd, buf, sizeof(buf)-1);
+	CHECK(n <= 0, "read", "error: %s\n", strerror(errno));
+	buf[n] = '\0';
+
+	errno = 0;
+	ret = (__u32)strtol(buf, NULL, 10);
+	CHECK(errno != 0, "strtol", "error: %s\n", strerror(errno));
+
+	return ret;
+}
+
+static __u32 get_cur_elements(int map_id)
+{
+	struct map_percpu_stats *skel;
+	struct bpf_link *link;
+	__u32 n_elements;
+	int iter_fd;
+	int ret;
+
+	skel = map_percpu_stats__open();
+	CHECK(skel == NULL, "map_percpu_stats__open", "error: %s", strerror(errno));
+
+	skel->bss->target_id = map_id;
+
+	ret = map_percpu_stats__load(skel);
+	CHECK(ret != 0, "map_percpu_stats__load", "error: %s", strerror(errno));
+
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_map, NULL);
+	CHECK(!link, "bpf_program__attach_iter", "error: %s\n", strerror(errno));
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	CHECK(iter_fd < 0, "bpf_iter_create", "error: %s\n", strerror(errno));
+
+	n_elements = read_cur_elements(iter_fd);
+
+	close(iter_fd);
+	bpf_link__destroy(link);
+	map_percpu_stats__destroy(skel);
+
+	return n_elements;
+}
+
+static void check_expected_number_elements(__u32 n_inserted, int map_fd,
+					   struct bpf_map_info *info)
+{
+	__u32 n_real;
+	__u32 n_iter;
+
+	/* Count the current number of elements in the map by iterating through
+	 * all the map keys via bpf_get_next_key
+	 */
+	n_real = map_count_elements(info->type, map_fd);
+
+	/* The "real" number of elements should be the same as the inserted
+	 * number of elements in all cases except LRU maps, where some elements
+	 * may have been evicted
+	 */
+	if (n_inserted == 0 || !is_lru(info->type))
+		CHECK(n_inserted != n_real, "map_count_elements",
+		      "n_real(%u) != n_inserted(%u)\n", n_real, n_inserted);
+
+	/* Count the current number of elements in the map using an iterator */
+	n_iter = get_cur_elements(info->id);
+
+	/* Both counts should be the same, as all updates are over */
+	CHECK(n_iter != n_real, "get_cur_elements",
+	      "n_iter=%u, expected %u (map_type=%s,map_flags=%08x)\n",
+	      n_iter, n_real, map_type_to_s(info->type), info->map_flags);
+}
+
+static void __test(int map_fd)
+{
+	struct upsert_opts opts = {
+		.map_fd = map_fd,
+	};
+	struct bpf_map_info info;
+
+	map_info(map_fd, &info);
+	opts.map_type = info.type;
+	opts.n = info.max_entries;
+
+	/* Reduce the number of elements we are updating such that we don't
+	 * bump into -E2BIG from non-preallocated hash maps, but still will
+	 * have some evictions for LRU maps  */
+	if (opts.map_type != BPF_MAP_TYPE_HASH_OF_MAPS)
+		opts.n -= 512;
+	else
+		opts.n /= 2;
+
+	/* per-cpu bpf memory allocator may not be able to allocate per-cpu
+	 * pointer successfully and it can not refill free llist timely, and
+	 * bpf_map_update_elem() will return -ENOMEM. so just retry to mitigate
+	 * the problem temporarily.
+	 */
+	opts.retry_for_nomem = is_percpu(opts.map_type) && (info.map_flags & BPF_F_NO_PREALLOC);
+
+	/*
+	 * Upsert keys [0, n) under some competition: with random values from
+	 * N_THREADS threads. Check values, then delete all elements and check
+	 * values again.
+	 */
+	upsert_elements(&opts);
+	check_expected_number_elements(opts.n, map_fd, &info);
+	delete_all_elements(info.type, map_fd, !BATCH);
+	check_expected_number_elements(0, map_fd, &info);
+
+	/* Now do the same, but using batch delete operations */
+	upsert_elements(&opts);
+	check_expected_number_elements(opts.n, map_fd, &info);
+	delete_all_elements(info.type, map_fd, BATCH);
+	check_expected_number_elements(0, map_fd, &info);
+
+	close(map_fd);
+}
+
+static int map_create_opts(__u32 type, const char *name,
+			   struct bpf_map_create_opts *map_opts,
+			   __u32 key_size, __u32 val_size)
+{
+	int max_entries;
+	int map_fd;
+
+	if (type == BPF_MAP_TYPE_HASH_OF_MAPS)
+		max_entries = MAX_ENTRIES_HASH_OF_MAPS;
+	else
+		max_entries = MAX_ENTRIES;
+
+	map_fd = bpf_map_create(type, name, key_size, val_size, max_entries, map_opts);
+	CHECK(map_fd < 0, "bpf_map_create()", "error:%s (name=%s)\n",
+			strerror(errno), name);
+
+	return map_fd;
+}
+
+static int map_create(__u32 type, const char *name, struct bpf_map_create_opts *map_opts)
+{
+	return map_create_opts(type, name, map_opts, sizeof(int), sizeof(int));
+}
+
+static int create_hash(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, map_opts, .map_flags = BPF_F_NO_PREALLOC);
+
+	return map_create(BPF_MAP_TYPE_HASH, "hash", &map_opts);
+}
+
+static int create_percpu_hash(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, map_opts, .map_flags = BPF_F_NO_PREALLOC);
+
+	return map_create(BPF_MAP_TYPE_PERCPU_HASH, "percpu_hash", &map_opts);
+}
+
+static int create_hash_prealloc(void)
+{
+	return map_create(BPF_MAP_TYPE_HASH, "hash", NULL);
+}
+
+static int create_percpu_hash_prealloc(void)
+{
+	return map_create(BPF_MAP_TYPE_PERCPU_HASH, "percpu_hash_prealloc", NULL);
+}
+
+static int create_lru_hash(__u32 type, __u32 map_flags)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, map_opts, .map_flags = map_flags);
+
+	return map_create(type, "lru_hash", &map_opts);
+}
+
+static int create_hash_of_maps(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, map_opts,
+		.map_flags = BPF_F_NO_PREALLOC,
+		.inner_map_fd = create_small_hash(),
+	);
+	int ret;
+
+	ret = map_create_opts(BPF_MAP_TYPE_HASH_OF_MAPS, "hash_of_maps",
+			      &map_opts, sizeof(int), sizeof(int));
+	close(map_opts.inner_map_fd);
+	return ret;
+}
+
+static void map_percpu_stats_hash(void)
+{
+	__test(create_hash());
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_percpu_hash(void)
+{
+	__test(create_percpu_hash());
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_hash_prealloc(void)
+{
+	__test(create_hash_prealloc());
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_percpu_hash_prealloc(void)
+{
+	__test(create_percpu_hash_prealloc());
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_lru_hash(void)
+{
+	__test(create_lru_hash(BPF_MAP_TYPE_LRU_HASH, 0));
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_lru_hash_no_common(void)
+{
+	__test(create_lru_hash(BPF_MAP_TYPE_LRU_HASH, BPF_F_NO_COMMON_LRU));
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_percpu_lru_hash(void)
+{
+	__test(create_lru_hash(BPF_MAP_TYPE_LRU_PERCPU_HASH, 0));
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_percpu_lru_hash_no_common(void)
+{
+	__test(create_lru_hash(BPF_MAP_TYPE_LRU_PERCPU_HASH, BPF_F_NO_COMMON_LRU));
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_hash_of_maps(void)
+{
+	__test(create_hash_of_maps());
+	printf("test_%s:PASS\n", __func__);
+}
+
+static void map_percpu_stats_map_value_size(void)
+{
+	int fd;
+	int value_sz = PCPU_MIN_UNIT_SIZE + 1;
+	struct bpf_map_create_opts opts = { .sz = sizeof(opts) };
+	enum bpf_map_type map_types[] = { BPF_MAP_TYPE_PERCPU_ARRAY,
+					  BPF_MAP_TYPE_PERCPU_HASH,
+					  BPF_MAP_TYPE_LRU_PERCPU_HASH };
+	for (int i = 0; i < ARRAY_SIZE(map_types); i++) {
+		fd = bpf_map_create(map_types[i], NULL, sizeof(__u32), value_sz, 1, &opts);
+		CHECK(fd < 0 && errno != E2BIG, "percpu map value size",
+			"error: %s\n", strerror(errno));
+	}
+	printf("test_%s:PASS\n", __func__);
+}
+
+void test_map_percpu_stats(void)
+{
+	map_percpu_stats_hash();
+	map_percpu_stats_percpu_hash();
+	map_percpu_stats_hash_prealloc();
+	map_percpu_stats_percpu_hash_prealloc();
+	map_percpu_stats_lru_hash();
+	map_percpu_stats_lru_hash_no_common();
+	map_percpu_stats_percpu_lru_hash();
+	map_percpu_stats_percpu_lru_hash_no_common();
+	map_percpu_stats_hash_of_maps();
+	map_percpu_stats_map_value_size();
+}
diff --git a/tools/testing/selftests/bpf/map_tests/sk_storage_map.c b/tools/testing/selftests/bpf/map_tests/sk_storage_map.c
new file mode 100644
index 000000000000..af10c309359a
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/sk_storage_map.c
@@ -0,0 +1,627 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook  */
+#include <linux/compiler.h>
+#include <linux/err.h>
+
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <linux/btf.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include <test_btf.h>
+#include <test_maps.h>
+
+static struct bpf_map_create_opts map_opts = {
+	.sz = sizeof(map_opts),
+	.btf_key_type_id = 1,
+	.btf_value_type_id = 3,
+	.btf_fd = -1,
+	.map_flags = BPF_F_NO_PREALLOC,
+};
+
+static unsigned int nr_sk_threads_done;
+static unsigned int nr_sk_threads_err;
+static unsigned int nr_sk_per_thread = 4096;
+static unsigned int nr_sk_threads = 4;
+static int sk_storage_map = -1;
+static unsigned int stop;
+static int runtime_s = 5;
+
+static bool is_stopped(void)
+{
+	return READ_ONCE(stop);
+}
+
+static unsigned int threads_err(void)
+{
+	return READ_ONCE(nr_sk_threads_err);
+}
+
+static void notify_thread_err(void)
+{
+	__sync_add_and_fetch(&nr_sk_threads_err, 1);
+}
+
+static bool wait_for_threads_err(void)
+{
+	while (!is_stopped() && !threads_err())
+		usleep(500);
+
+	return !is_stopped();
+}
+
+static unsigned int threads_done(void)
+{
+	return READ_ONCE(nr_sk_threads_done);
+}
+
+static void notify_thread_done(void)
+{
+	__sync_add_and_fetch(&nr_sk_threads_done, 1);
+}
+
+static void notify_thread_redo(void)
+{
+	__sync_sub_and_fetch(&nr_sk_threads_done, 1);
+}
+
+static bool wait_for_threads_done(void)
+{
+	while (threads_done() != nr_sk_threads && !is_stopped() &&
+	       !threads_err())
+		usleep(50);
+
+	return !is_stopped() && !threads_err();
+}
+
+static bool wait_for_threads_redo(void)
+{
+	while (threads_done() && !is_stopped() && !threads_err())
+		usleep(50);
+
+	return !is_stopped() && !threads_err();
+}
+
+static bool wait_for_map(void)
+{
+	while (READ_ONCE(sk_storage_map) == -1 && !is_stopped())
+		usleep(50);
+
+	return !is_stopped();
+}
+
+static bool wait_for_map_close(void)
+{
+	while (READ_ONCE(sk_storage_map) != -1 && !is_stopped())
+		;
+
+	return !is_stopped();
+}
+
+static int load_btf(void)
+{
+	const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l";
+	__u32 btf_raw_types[] = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
+		/* struct bpf_spin_lock */                      /* [2] */
+		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),
+		BTF_MEMBER_ENC(15, 1, 0), /* int val; */
+		/* struct val */                                /* [3] */
+		BTF_TYPE_ENC(15, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+		BTF_MEMBER_ENC(19, 1, 0), /* int cnt; */
+		BTF_MEMBER_ENC(23, 2, 32),/* struct bpf_spin_lock l; */
+	};
+	struct btf_header btf_hdr = {
+		.magic = BTF_MAGIC,
+		.version = BTF_VERSION,
+		.hdr_len = sizeof(struct btf_header),
+		.type_len = sizeof(btf_raw_types),
+		.str_off = sizeof(btf_raw_types),
+		.str_len = sizeof(btf_str_sec),
+	};
+	__u8 raw_btf[sizeof(struct btf_header) + sizeof(btf_raw_types) +
+		     sizeof(btf_str_sec)];
+
+	memcpy(raw_btf, &btf_hdr, sizeof(btf_hdr));
+	memcpy(raw_btf + sizeof(btf_hdr), btf_raw_types, sizeof(btf_raw_types));
+	memcpy(raw_btf + sizeof(btf_hdr) + sizeof(btf_raw_types),
+	       btf_str_sec, sizeof(btf_str_sec));
+
+	return bpf_btf_load(raw_btf, sizeof(raw_btf), NULL);
+}
+
+static int create_sk_storage_map(void)
+{
+	int btf_fd, map_fd;
+
+	btf_fd = load_btf();
+	CHECK(btf_fd == -1, "bpf_load_btf", "btf_fd:%d errno:%d\n",
+	      btf_fd, errno);
+	map_opts.btf_fd = btf_fd;
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 0, &map_opts);
+	map_opts.btf_fd = -1;
+	close(btf_fd);
+	CHECK(map_fd == -1,
+	      "bpf_map_create()", "errno:%d\n", errno);
+
+	return map_fd;
+}
+
+static void *insert_close_thread(void *arg)
+{
+	struct {
+		int cnt;
+		int lock;
+	} value = { .cnt = 0xeB9F, .lock = 0, };
+	int i, map_fd, err, *sk_fds;
+
+	sk_fds = malloc(sizeof(*sk_fds) * nr_sk_per_thread);
+	if (!sk_fds) {
+		notify_thread_err();
+		return ERR_PTR(-ENOMEM);
+	}
+
+	for (i = 0; i < nr_sk_per_thread; i++)
+		sk_fds[i] = -1;
+
+	while (!is_stopped()) {
+		if (!wait_for_map())
+			goto close_all;
+
+		map_fd = READ_ONCE(sk_storage_map);
+		for (i = 0; i < nr_sk_per_thread && !is_stopped(); i++) {
+			sk_fds[i] = socket(AF_INET6, SOCK_STREAM, 0);
+			if (sk_fds[i] == -1) {
+				err = -errno;
+				fprintf(stderr, "socket(): errno:%d\n", errno);
+				goto errout;
+			}
+			err = bpf_map_update_elem(map_fd, &sk_fds[i], &value,
+						  BPF_NOEXIST);
+			if (err) {
+				err = -errno;
+				fprintf(stderr,
+					"bpf_map_update_elem(): errno:%d\n",
+					errno);
+				goto errout;
+			}
+		}
+
+		notify_thread_done();
+		wait_for_map_close();
+
+close_all:
+		for (i = 0; i < nr_sk_per_thread; i++) {
+			close(sk_fds[i]);
+			sk_fds[i] = -1;
+		}
+
+		notify_thread_redo();
+	}
+
+	free(sk_fds);
+	return NULL;
+
+errout:
+	for (i = 0; i < nr_sk_per_thread && sk_fds[i] != -1; i++)
+		close(sk_fds[i]);
+	free(sk_fds);
+	notify_thread_err();
+	return ERR_PTR(err);
+}
+
+static int do_sk_storage_map_stress_free(void)
+{
+	int i, map_fd = -1, err = 0, nr_threads_created = 0;
+	pthread_t *sk_thread_ids;
+	void *thread_ret;
+
+	sk_thread_ids = malloc(sizeof(pthread_t) * nr_sk_threads);
+	if (!sk_thread_ids) {
+		fprintf(stderr, "malloc(sk_threads): NULL\n");
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < nr_sk_threads; i++) {
+		err = pthread_create(&sk_thread_ids[i], NULL,
+				     insert_close_thread, NULL);
+		if (err) {
+			err = -errno;
+			goto done;
+		}
+		nr_threads_created++;
+	}
+
+	while (!is_stopped()) {
+		map_fd = create_sk_storage_map();
+		WRITE_ONCE(sk_storage_map, map_fd);
+
+		if (!wait_for_threads_done())
+			break;
+
+		WRITE_ONCE(sk_storage_map, -1);
+		close(map_fd);
+		map_fd = -1;
+
+		if (!wait_for_threads_redo())
+			break;
+	}
+
+done:
+	WRITE_ONCE(stop, 1);
+	for (i = 0; i < nr_threads_created; i++) {
+		pthread_join(sk_thread_ids[i], &thread_ret);
+		if (IS_ERR(thread_ret) && !err) {
+			err = PTR_ERR(thread_ret);
+			fprintf(stderr, "threads#%u: err:%d\n", i, err);
+		}
+	}
+	free(sk_thread_ids);
+
+	if (map_fd != -1)
+		close(map_fd);
+
+	return err;
+}
+
+static void *update_thread(void *arg)
+{
+	struct {
+		int cnt;
+		int lock;
+	} value = { .cnt = 0xeB9F, .lock = 0, };
+	int map_fd = READ_ONCE(sk_storage_map);
+	int sk_fd = *(int *)arg;
+	int err = 0; /* Suppress compiler false alarm */
+
+	while (!is_stopped()) {
+		err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
+		if (err && errno != EAGAIN) {
+			err = -errno;
+			fprintf(stderr, "bpf_map_update_elem: %d %d\n",
+				err, errno);
+			break;
+		}
+	}
+
+	if (!is_stopped()) {
+		notify_thread_err();
+		return ERR_PTR(err);
+	}
+
+	return NULL;
+}
+
+static void *delete_thread(void *arg)
+{
+	int map_fd = READ_ONCE(sk_storage_map);
+	int sk_fd = *(int *)arg;
+	int err = 0; /* Suppress compiler false alarm */
+
+	while (!is_stopped()) {
+		err = bpf_map_delete_elem(map_fd, &sk_fd);
+		if (err && errno != ENOENT) {
+			err = -errno;
+			fprintf(stderr, "bpf_map_delete_elem: %d %d\n",
+				err, errno);
+			break;
+		}
+	}
+
+	if (!is_stopped()) {
+		notify_thread_err();
+		return ERR_PTR(err);
+	}
+
+	return NULL;
+}
+
+static int do_sk_storage_map_stress_change(void)
+{
+	int i, sk_fd, map_fd = -1, err = 0, nr_threads_created = 0;
+	pthread_t *sk_thread_ids;
+	void *thread_ret;
+
+	sk_thread_ids = malloc(sizeof(pthread_t) * nr_sk_threads);
+	if (!sk_thread_ids) {
+		fprintf(stderr, "malloc(sk_threads): NULL\n");
+		return -ENOMEM;
+	}
+
+	sk_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (sk_fd == -1) {
+		err = -errno;
+		goto done;
+	}
+
+	map_fd = create_sk_storage_map();
+	WRITE_ONCE(sk_storage_map, map_fd);
+
+	for (i = 0; i < nr_sk_threads; i++) {
+		if (i & 0x1)
+			err = pthread_create(&sk_thread_ids[i], NULL,
+					     update_thread, &sk_fd);
+		else
+			err = pthread_create(&sk_thread_ids[i], NULL,
+					     delete_thread, &sk_fd);
+		if (err) {
+			err = -errno;
+			goto done;
+		}
+		nr_threads_created++;
+	}
+
+	wait_for_threads_err();
+
+done:
+	WRITE_ONCE(stop, 1);
+	for (i = 0; i < nr_threads_created; i++) {
+		pthread_join(sk_thread_ids[i], &thread_ret);
+		if (IS_ERR(thread_ret) && !err) {
+			err = PTR_ERR(thread_ret);
+			fprintf(stderr, "threads#%u: err:%d\n", i, err);
+		}
+	}
+	free(sk_thread_ids);
+
+	if (sk_fd != -1)
+		close(sk_fd);
+	close(map_fd);
+
+	return err;
+}
+
+static void stop_handler(int signum)
+{
+	if (signum != SIGALRM)
+		printf("stopping...\n");
+	WRITE_ONCE(stop, 1);
+}
+
+#define BPF_SK_STORAGE_MAP_TEST_NR_THREADS "BPF_SK_STORAGE_MAP_TEST_NR_THREADS"
+#define BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD "BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD"
+#define BPF_SK_STORAGE_MAP_TEST_RUNTIME_S "BPF_SK_STORAGE_MAP_TEST_RUNTIME_S"
+#define BPF_SK_STORAGE_MAP_TEST_NAME "BPF_SK_STORAGE_MAP_TEST_NAME"
+
+static void test_sk_storage_map_stress_free(void)
+{
+	struct rlimit rlim_old, rlim_new = {};
+	int err;
+
+	getrlimit(RLIMIT_NOFILE, &rlim_old);
+
+	signal(SIGTERM, stop_handler);
+	signal(SIGINT, stop_handler);
+	if (runtime_s > 0) {
+		signal(SIGALRM, stop_handler);
+		alarm(runtime_s);
+	}
+
+	if (rlim_old.rlim_cur < nr_sk_threads * nr_sk_per_thread) {
+		rlim_new.rlim_cur = nr_sk_threads * nr_sk_per_thread + 128;
+		rlim_new.rlim_max = rlim_new.rlim_cur + 128;
+		err = setrlimit(RLIMIT_NOFILE, &rlim_new);
+		CHECK(err, "setrlimit(RLIMIT_NOFILE)", "rlim_new:%lu errno:%d",
+		      (unsigned long) rlim_new.rlim_cur, errno);
+	}
+
+	err = do_sk_storage_map_stress_free();
+
+	signal(SIGTERM, SIG_DFL);
+	signal(SIGINT, SIG_DFL);
+	if (runtime_s > 0) {
+		signal(SIGALRM, SIG_DFL);
+		alarm(0);
+	}
+
+	if (rlim_new.rlim_cur)
+		setrlimit(RLIMIT_NOFILE, &rlim_old);
+
+	CHECK(err, "test_sk_storage_map_stress_free", "err:%d\n", err);
+}
+
+static void test_sk_storage_map_stress_change(void)
+{
+	int err;
+
+	signal(SIGTERM, stop_handler);
+	signal(SIGINT, stop_handler);
+	if (runtime_s > 0) {
+		signal(SIGALRM, stop_handler);
+		alarm(runtime_s);
+	}
+
+	err = do_sk_storage_map_stress_change();
+
+	signal(SIGTERM, SIG_DFL);
+	signal(SIGINT, SIG_DFL);
+	if (runtime_s > 0) {
+		signal(SIGALRM, SIG_DFL);
+		alarm(0);
+	}
+
+	CHECK(err, "test_sk_storage_map_stress_change", "err:%d\n", err);
+}
+
+static void test_sk_storage_map_basic(void)
+{
+	struct {
+		int cnt;
+		int lock;
+	} value = { .cnt = 0xeB9f, .lock = 1, }, lookup_value;
+	struct bpf_map_create_opts bad_xattr;
+	int btf_fd, map_fd, sk_fd, err;
+
+	btf_fd = load_btf();
+	CHECK(btf_fd == -1, "bpf_load_btf", "btf_fd:%d errno:%d\n",
+	      btf_fd, errno);
+	map_opts.btf_fd = btf_fd;
+
+	sk_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	CHECK(sk_fd == -1, "socket()", "sk_fd:%d errno:%d\n",
+	      sk_fd, errno);
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 0, &map_opts);
+	CHECK(map_fd == -1, "bpf_map_create(good_xattr)",
+	      "map_fd:%d errno:%d\n", map_fd, errno);
+
+	/* Add new elem */
+	memcpy(&lookup_value, &value, sizeof(value));
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
+				  BPF_NOEXIST | BPF_F_LOCK);
+	CHECK(err, "bpf_map_update_elem(BPF_NOEXIST|BPF_F_LOCK)",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(err || lookup_value.lock || lookup_value.cnt != value.cnt,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d lock:%x cnt:%x(%x)\n",
+	      err, errno, lookup_value.lock, lookup_value.cnt, value.cnt);
+
+	/* Bump the cnt and update with BPF_EXIST | BPF_F_LOCK */
+	value.cnt += 1;
+	value.lock = 2;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
+				  BPF_EXIST | BPF_F_LOCK);
+	CHECK(err, "bpf_map_update_elem(BPF_EXIST|BPF_F_LOCK)",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(err || lookup_value.lock || lookup_value.cnt != value.cnt,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d lock:%x cnt:%x(%x)\n",
+	      err, errno, lookup_value.lock, lookup_value.cnt, value.cnt);
+
+	/* Bump the cnt and update with BPF_EXIST */
+	value.cnt += 1;
+	value.lock = 2;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value, BPF_EXIST);
+	CHECK(err, "bpf_map_update_elem(BPF_EXIST)",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(err || lookup_value.lock || lookup_value.cnt != value.cnt,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d lock:%x cnt:%x(%x)\n",
+	      err, errno, lookup_value.lock, lookup_value.cnt, value.cnt);
+
+	/* Update with BPF_NOEXIST */
+	value.cnt += 1;
+	value.lock = 2;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value,
+				  BPF_NOEXIST | BPF_F_LOCK);
+	CHECK(!err || errno != EEXIST,
+	      "bpf_map_update_elem(BPF_NOEXIST|BPF_F_LOCK)",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value, BPF_NOEXIST);
+	CHECK(!err || errno != EEXIST, "bpf_map_update_elem(BPF_NOEXIST)",
+	      "err:%d errno:%d\n", err, errno);
+	value.cnt -= 1;
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(err || lookup_value.lock || lookup_value.cnt != value.cnt,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d lock:%x cnt:%x(%x)\n",
+	      err, errno, lookup_value.lock, lookup_value.cnt, value.cnt);
+
+	/* Bump the cnt again and update with map_flags == 0 */
+	value.cnt += 1;
+	value.lock = 2;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
+	CHECK(err, "bpf_map_update_elem()", "err:%d errno:%d\n",
+	      err, errno);
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(err || lookup_value.lock || lookup_value.cnt != value.cnt,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d lock:%x cnt:%x(%x)\n",
+	      err, errno, lookup_value.lock, lookup_value.cnt, value.cnt);
+
+	/* Test delete elem */
+	err = bpf_map_delete_elem(map_fd, &sk_fd);
+	CHECK(err, "bpf_map_delete_elem()", "err:%d errno:%d\n",
+	      err, errno);
+	err = bpf_map_lookup_elem_flags(map_fd, &sk_fd, &lookup_value,
+					BPF_F_LOCK);
+	CHECK(!err || errno != ENOENT,
+	      "bpf_map_lookup_elem_flags(BPF_F_LOCK)",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_delete_elem(map_fd, &sk_fd);
+	CHECK(!err || errno != ENOENT, "bpf_map_delete_elem()",
+	      "err:%d errno:%d\n", err, errno);
+
+	memcpy(&bad_xattr, &map_opts, sizeof(map_opts));
+	bad_xattr.btf_key_type_id = 0;
+	err = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 0, &bad_xattr);
+	CHECK(!err || errno != EINVAL, "bpf_map_create(bad_xattr)",
+	      "err:%d errno:%d\n", err, errno);
+
+	memcpy(&bad_xattr, &map_opts, sizeof(map_opts));
+	bad_xattr.btf_key_type_id = 3;
+	err = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 0, &bad_xattr);
+	CHECK(!err || errno != EINVAL, "bpf_map_create(bad_xattr)",
+	      "err:%d errno:%d\n", err, errno);
+
+	err = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 1, &map_opts);
+	CHECK(!err || errno != EINVAL, "bpf_map_create(bad_xattr)",
+	      "err:%d errno:%d\n", err, errno);
+
+	memcpy(&bad_xattr, &map_opts, sizeof(map_opts));
+	bad_xattr.map_flags = 0;
+	err = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "sk_storage_map", 4, 8, 0, &bad_xattr);
+	CHECK(!err || errno != EINVAL, "bap_create_map_xattr(bad_xattr)",
+	      "err:%d errno:%d\n", err, errno);
+
+	map_opts.btf_fd = -1;
+	close(btf_fd);
+	close(map_fd);
+	close(sk_fd);
+}
+
+void test_sk_storage_map(void)
+{
+	const char *test_name, *env_opt;
+	bool test_ran = false;
+
+	test_name = getenv(BPF_SK_STORAGE_MAP_TEST_NAME);
+
+	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_NR_THREADS);
+	if (env_opt)
+		nr_sk_threads = atoi(env_opt);
+
+	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_SK_PER_THREAD);
+	if (env_opt)
+		nr_sk_per_thread = atoi(env_opt);
+
+	env_opt = getenv(BPF_SK_STORAGE_MAP_TEST_RUNTIME_S);
+	if (env_opt)
+		runtime_s = atoi(env_opt);
+
+	if (!test_name || !strcmp(test_name, "basic")) {
+		test_sk_storage_map_basic();
+		test_ran = true;
+	}
+	if (!test_name || !strcmp(test_name, "stress_free")) {
+		test_sk_storage_map_stress_free();
+		test_ran = true;
+	}
+	if (!test_name || !strcmp(test_name, "stress_change")) {
+		test_sk_storage_map_stress_change();
+		test_ran = true;
+	}
+
+	if (test_ran)
+		printf("%s:PASS\n", __func__);
+	else
+		CHECK(1, "Invalid test_name", "%s\n", test_name);
+}
diff --git a/tools/testing/selftests/bpf/map_tests/task_storage_map.c b/tools/testing/selftests/bpf/map_tests/task_storage_map.c
new file mode 100644
index 000000000000..a4121d2248ac
--- /dev/null
+++ b/tools/testing/selftests/bpf/map_tests/task_storage_map.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "test_maps.h"
+#include "task_local_storage_helpers.h"
+#include "read_bpf_task_storage_busy.skel.h"
+
+struct lookup_ctx {
+	bool start;
+	bool stop;
+	int pid_fd;
+	int map_fd;
+	int loop;
+};
+
+static void *lookup_fn(void *arg)
+{
+	struct lookup_ctx *ctx = arg;
+	long value;
+	int i = 0;
+
+	while (!ctx->start)
+		usleep(1);
+
+	while (!ctx->stop && i++ < ctx->loop)
+		bpf_map_lookup_elem(ctx->map_fd, &ctx->pid_fd, &value);
+	return NULL;
+}
+
+static void abort_lookup(struct lookup_ctx *ctx, pthread_t *tids, unsigned int nr)
+{
+	unsigned int i;
+
+	ctx->stop = true;
+	ctx->start = true;
+	for (i = 0; i < nr; i++)
+		pthread_join(tids[i], NULL);
+}
+
+void test_task_storage_map_stress_lookup(void)
+{
+#define MAX_NR_THREAD 4096
+	unsigned int i, nr = 256, loop = 8192, cpu = 0;
+	struct read_bpf_task_storage_busy *skel;
+	pthread_t tids[MAX_NR_THREAD];
+	struct lookup_ctx ctx;
+	cpu_set_t old, new;
+	const char *cfg;
+	int err;
+
+	cfg = getenv("TASK_STORAGE_MAP_NR_THREAD");
+	if (cfg) {
+		nr = atoi(cfg);
+		if (nr > MAX_NR_THREAD)
+			nr = MAX_NR_THREAD;
+	}
+	cfg = getenv("TASK_STORAGE_MAP_NR_LOOP");
+	if (cfg)
+		loop = atoi(cfg);
+	cfg = getenv("TASK_STORAGE_MAP_PIN_CPU");
+	if (cfg)
+		cpu = atoi(cfg);
+
+	skel = read_bpf_task_storage_busy__open_and_load();
+	err = libbpf_get_error(skel);
+	CHECK(err, "open_and_load", "error %d\n", err);
+
+	/* Only for a fully preemptible kernel */
+	if (!skel->kconfig->CONFIG_PREEMPTION) {
+		printf("%s SKIP (no CONFIG_PREEMPTION)\n", __func__);
+		read_bpf_task_storage_busy__destroy(skel);
+		skips++;
+		return;
+	}
+
+	/* Save the old affinity setting */
+	sched_getaffinity(getpid(), sizeof(old), &old);
+
+	/* Pinned on a specific CPU */
+	CPU_ZERO(&new);
+	CPU_SET(cpu, &new);
+	sched_setaffinity(getpid(), sizeof(new), &new);
+
+	ctx.start = false;
+	ctx.stop = false;
+	ctx.pid_fd = sys_pidfd_open(getpid(), 0);
+	ctx.map_fd = bpf_map__fd(skel->maps.task);
+	ctx.loop = loop;
+	for (i = 0; i < nr; i++) {
+		err = pthread_create(&tids[i], NULL, lookup_fn, &ctx);
+		if (err) {
+			abort_lookup(&ctx, tids, i);
+			CHECK(err, "pthread_create", "error %d\n", err);
+			goto out;
+		}
+	}
+
+	ctx.start = true;
+	for (i = 0; i < nr; i++)
+		pthread_join(tids[i], NULL);
+
+	skel->bss->pid = getpid();
+	err = read_bpf_task_storage_busy__attach(skel);
+	CHECK(err, "attach", "error %d\n", err);
+
+	/* Trigger program */
+	sys_gettid();
+	skel->bss->pid = 0;
+
+	CHECK(skel->bss->busy != 0, "bad bpf_task_storage_busy", "got %d\n", skel->bss->busy);
+out:
+	read_bpf_task_storage_busy__destroy(skel);
+	/* Restore affinity setting */
+	sched_setaffinity(getpid(), sizeof(old), &old);
+	printf("%s:PASS\n", __func__);
+}
diff --git a/tools/testing/selftests/bpf/netcnt_common.h b/tools/testing/selftests/bpf/netcnt_common.h
new file mode 100644
index 000000000000..2d4a58e4e39c
--- /dev/null
+++ b/tools/testing/selftests/bpf/netcnt_common.h
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef __NETCNT_COMMON_H
+#define __NETCNT_COMMON_H
+
+#include <linux/types.h>
+
+#define MAX_PERCPU_PACKETS 32
+
+/* sizeof(struct bpf_local_storage_elem):
+ *
+ * It is about 128 bytes on x86_64 and 512 bytes on s390x, but allocate more to
+ * account for possible layout changes, different architectures, etc.
+ * The kernel will wrap up to PAGE_SIZE internally anyway.
+ */
+#define SIZEOF_BPF_LOCAL_STORAGE_ELEM		768
+
+/* Try to estimate kernel's BPF_LOCAL_STORAGE_MAX_VALUE_SIZE: */
+#define BPF_LOCAL_STORAGE_MAX_VALUE_SIZE	(0xFFFF - \
+						 SIZEOF_BPF_LOCAL_STORAGE_ELEM)
+
+#define PCPU_MIN_UNIT_SIZE			32768
+
+union percpu_net_cnt {
+	struct {
+		__u64 packets;
+		__u64 bytes;
+
+		__u64 prev_ts;
+
+		__u64 prev_packets;
+		__u64 prev_bytes;
+	};
+	__u8 data[PCPU_MIN_UNIT_SIZE];
+};
+
+union net_cnt {
+	struct {
+		__u64 packets;
+		__u64 bytes;
+	};
+	__u8 data[BPF_LOCAL_STORAGE_MAX_VALUE_SIZE];
+};
+
+#endif
diff --git a/tools/testing/selftests/bpf/netlink_helpers.c b/tools/testing/selftests/bpf/netlink_helpers.c
new file mode 100644
index 000000000000..caf36eb1d032
--- /dev/null
+++ b/tools/testing/selftests/bpf/netlink_helpers.c
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Taken & modified from iproute2's libnetlink.c
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/socket.h>
+
+#include "netlink_helpers.h"
+
+static int rcvbuf = 1024 * 1024;
+
+void rtnl_close(struct rtnl_handle *rth)
+{
+	if (rth->fd >= 0) {
+		close(rth->fd);
+		rth->fd = -1;
+	}
+}
+
+int rtnl_open_byproto(struct rtnl_handle *rth, unsigned int subscriptions,
+		      int protocol)
+{
+	socklen_t addr_len;
+	int sndbuf = 32768;
+	int one = 1;
+
+	memset(rth, 0, sizeof(*rth));
+	rth->proto = protocol;
+	rth->fd = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, protocol);
+	if (rth->fd < 0) {
+		perror("Cannot open netlink socket");
+		return -1;
+	}
+	if (setsockopt(rth->fd, SOL_SOCKET, SO_SNDBUF,
+		       &sndbuf, sizeof(sndbuf)) < 0) {
+		perror("SO_SNDBUF");
+		goto err;
+	}
+	if (setsockopt(rth->fd, SOL_SOCKET, SO_RCVBUF,
+		       &rcvbuf, sizeof(rcvbuf)) < 0) {
+		perror("SO_RCVBUF");
+		goto err;
+	}
+
+	/* Older kernels may no support extended ACK reporting */
+	setsockopt(rth->fd, SOL_NETLINK, NETLINK_EXT_ACK,
+		   &one, sizeof(one));
+
+	memset(&rth->local, 0, sizeof(rth->local));
+	rth->local.nl_family = AF_NETLINK;
+	rth->local.nl_groups = subscriptions;
+
+	if (bind(rth->fd, (struct sockaddr *)&rth->local,
+		 sizeof(rth->local)) < 0) {
+		perror("Cannot bind netlink socket");
+		goto err;
+	}
+	addr_len = sizeof(rth->local);
+	if (getsockname(rth->fd, (struct sockaddr *)&rth->local,
+			&addr_len) < 0) {
+		perror("Cannot getsockname");
+		goto err;
+	}
+	if (addr_len != sizeof(rth->local)) {
+		fprintf(stderr, "Wrong address length %d\n", addr_len);
+		goto err;
+	}
+	if (rth->local.nl_family != AF_NETLINK) {
+		fprintf(stderr, "Wrong address family %d\n",
+			rth->local.nl_family);
+		goto err;
+	}
+	rth->seq = time(NULL);
+	return 0;
+err:
+	rtnl_close(rth);
+	return -1;
+}
+
+int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
+{
+	return rtnl_open_byproto(rth, subscriptions, NETLINK_ROUTE);
+}
+
+static int __rtnl_recvmsg(int fd, struct msghdr *msg, int flags)
+{
+	int len;
+
+	do {
+		len = recvmsg(fd, msg, flags);
+	} while (len < 0 && (errno == EINTR || errno == EAGAIN));
+	if (len < 0) {
+		fprintf(stderr, "netlink receive error %s (%d)\n",
+			strerror(errno), errno);
+		return -errno;
+	}
+	if (len == 0) {
+		fprintf(stderr, "EOF on netlink\n");
+		return -ENODATA;
+	}
+	return len;
+}
+
+static int rtnl_recvmsg(int fd, struct msghdr *msg, char **answer)
+{
+	struct iovec *iov = msg->msg_iov;
+	char *buf;
+	int len;
+
+	iov->iov_base = NULL;
+	iov->iov_len = 0;
+
+	len = __rtnl_recvmsg(fd, msg, MSG_PEEK | MSG_TRUNC);
+	if (len < 0)
+		return len;
+	if (len < 32768)
+		len = 32768;
+	buf = malloc(len);
+	if (!buf) {
+		fprintf(stderr, "malloc error: not enough buffer\n");
+		return -ENOMEM;
+	}
+	iov->iov_base = buf;
+	iov->iov_len = len;
+	len = __rtnl_recvmsg(fd, msg, 0);
+	if (len < 0) {
+		free(buf);
+		return len;
+	}
+	if (answer)
+		*answer = buf;
+	else
+		free(buf);
+	return len;
+}
+
+static void rtnl_talk_error(struct nlmsghdr *h, struct nlmsgerr *err,
+			    nl_ext_ack_fn_t errfn)
+{
+	fprintf(stderr, "RTNETLINK answers: %s\n",
+		strerror(-err->error));
+}
+
+static int __rtnl_talk_iov(struct rtnl_handle *rtnl, struct iovec *iov,
+			   size_t iovlen, struct nlmsghdr **answer,
+			   bool show_rtnl_err, nl_ext_ack_fn_t errfn)
+{
+	struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
+	struct iovec riov;
+	struct msghdr msg = {
+		.msg_name	= &nladdr,
+		.msg_namelen	= sizeof(nladdr),
+		.msg_iov	= iov,
+		.msg_iovlen	= iovlen,
+	};
+	unsigned int seq = 0;
+	struct nlmsghdr *h;
+	int i, status;
+	char *buf;
+
+	for (i = 0; i < iovlen; i++) {
+		h = iov[i].iov_base;
+		h->nlmsg_seq = seq = ++rtnl->seq;
+		if (answer == NULL)
+			h->nlmsg_flags |= NLM_F_ACK;
+	}
+	status = sendmsg(rtnl->fd, &msg, 0);
+	if (status < 0) {
+		perror("Cannot talk to rtnetlink");
+		return -1;
+	}
+	/* change msg to use the response iov */
+	msg.msg_iov = &riov;
+	msg.msg_iovlen = 1;
+	i = 0;
+	while (1) {
+next:
+		status = rtnl_recvmsg(rtnl->fd, &msg, &buf);
+		++i;
+		if (status < 0)
+			return status;
+		if (msg.msg_namelen != sizeof(nladdr)) {
+			fprintf(stderr,
+				"Sender address length == %d!\n",
+				msg.msg_namelen);
+			exit(1);
+		}
+		for (h = (struct nlmsghdr *)buf; status >= sizeof(*h); ) {
+			int len = h->nlmsg_len;
+			int l = len - sizeof(*h);
+
+			if (l < 0 || len > status) {
+				if (msg.msg_flags & MSG_TRUNC) {
+					fprintf(stderr, "Truncated message!\n");
+					free(buf);
+					return -1;
+				}
+				fprintf(stderr,
+					"Malformed message: len=%d!\n",
+					len);
+				exit(1);
+			}
+			if (nladdr.nl_pid != 0 ||
+			    h->nlmsg_pid != rtnl->local.nl_pid ||
+			    h->nlmsg_seq > seq || h->nlmsg_seq < seq - iovlen) {
+				/* Don't forget to skip that message. */
+				status -= NLMSG_ALIGN(len);
+				h = (struct nlmsghdr *)((char *)h + NLMSG_ALIGN(len));
+				continue;
+			}
+			if (h->nlmsg_type == NLMSG_ERROR) {
+				struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(h);
+				int error = err->error;
+
+				if (l < sizeof(struct nlmsgerr)) {
+					fprintf(stderr, "ERROR truncated\n");
+					free(buf);
+					return -1;
+				}
+				if (error) {
+					errno = -error;
+					if (rtnl->proto != NETLINK_SOCK_DIAG &&
+					    show_rtnl_err)
+						rtnl_talk_error(h, err, errfn);
+				}
+				if (i < iovlen) {
+					free(buf);
+					goto next;
+				}
+				if (error) {
+					free(buf);
+					return -i;
+				}
+				if (answer)
+					*answer = (struct nlmsghdr *)buf;
+				else
+					free(buf);
+				return 0;
+			}
+			if (answer) {
+				*answer = (struct nlmsghdr *)buf;
+				return 0;
+			}
+			fprintf(stderr, "Unexpected reply!\n");
+			status -= NLMSG_ALIGN(len);
+			h = (struct nlmsghdr *)((char *)h + NLMSG_ALIGN(len));
+		}
+		free(buf);
+		if (msg.msg_flags & MSG_TRUNC) {
+			fprintf(stderr, "Message truncated!\n");
+			continue;
+		}
+		if (status) {
+			fprintf(stderr, "Remnant of size %d!\n", status);
+			exit(1);
+		}
+	}
+}
+
+static int __rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
+		       struct nlmsghdr **answer, bool show_rtnl_err,
+		       nl_ext_ack_fn_t errfn)
+{
+	struct iovec iov = {
+		.iov_base	= n,
+		.iov_len	= n->nlmsg_len,
+	};
+
+	return __rtnl_talk_iov(rtnl, &iov, 1, answer, show_rtnl_err, errfn);
+}
+
+int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
+	      struct nlmsghdr **answer)
+{
+	return __rtnl_talk(rtnl, n, answer, true, NULL);
+}
+
+int addattr(struct nlmsghdr *n, int maxlen, int type)
+{
+	return addattr_l(n, maxlen, type, NULL, 0);
+}
+
+int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data)
+{
+	return addattr_l(n, maxlen, type, &data, sizeof(__u8));
+}
+
+int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data)
+{
+	return addattr_l(n, maxlen, type, &data, sizeof(__u16));
+}
+
+int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data)
+{
+	return addattr_l(n, maxlen, type, &data, sizeof(__u32));
+}
+
+int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data)
+{
+	return addattr_l(n, maxlen, type, &data, sizeof(__u64));
+}
+
+int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *str)
+{
+	return addattr_l(n, maxlen, type, str, strlen(str)+1);
+}
+
+int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data,
+	      int alen)
+{
+	int len = RTA_LENGTH(alen);
+	struct rtattr *rta;
+
+	if (NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len) > maxlen) {
+		fprintf(stderr, "%s: Message exceeded bound of %d\n",
+			__func__, maxlen);
+		return -1;
+	}
+	rta = NLMSG_TAIL(n);
+	rta->rta_type = type;
+	rta->rta_len = len;
+	if (alen)
+		memcpy(RTA_DATA(rta), data, alen);
+	n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
+	return 0;
+}
+
+int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len)
+{
+	if (NLMSG_ALIGN(n->nlmsg_len) + NLMSG_ALIGN(len) > maxlen) {
+		fprintf(stderr, "%s: Message exceeded bound of %d\n",
+			__func__, maxlen);
+		return -1;
+	}
+
+	memcpy(NLMSG_TAIL(n), data, len);
+	memset((void *) NLMSG_TAIL(n) + len, 0, NLMSG_ALIGN(len) - len);
+	n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + NLMSG_ALIGN(len);
+	return 0;
+}
+
+struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type)
+{
+	struct rtattr *nest = NLMSG_TAIL(n);
+
+	addattr_l(n, maxlen, type, NULL, 0);
+	return nest;
+}
+
+int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest)
+{
+	nest->rta_len = (void *)NLMSG_TAIL(n) - (void *)nest;
+	return n->nlmsg_len;
+}
diff --git a/tools/testing/selftests/bpf/netlink_helpers.h b/tools/testing/selftests/bpf/netlink_helpers.h
new file mode 100644
index 000000000000..68116818a47e
--- /dev/null
+++ b/tools/testing/selftests/bpf/netlink_helpers.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef NETLINK_HELPERS_H
+#define NETLINK_HELPERS_H
+
+#include <string.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+
+struct rtnl_handle {
+	int			fd;
+	struct sockaddr_nl	local;
+	struct sockaddr_nl	peer;
+	__u32			seq;
+	__u32			dump;
+	int			proto;
+	FILE			*dump_fp;
+#define RTNL_HANDLE_F_LISTEN_ALL_NSID		0x01
+#define RTNL_HANDLE_F_SUPPRESS_NLERR		0x02
+#define RTNL_HANDLE_F_STRICT_CHK		0x04
+	int			flags;
+};
+
+#define NLMSG_TAIL(nmsg) \
+	((struct rtattr *) (((void *) (nmsg)) + NLMSG_ALIGN((nmsg)->nlmsg_len)))
+
+typedef int (*nl_ext_ack_fn_t)(const char *errmsg, uint32_t off,
+			       const struct nlmsghdr *inner_nlh);
+
+int rtnl_open(struct rtnl_handle *rth, unsigned int subscriptions)
+	      __attribute__((warn_unused_result));
+void rtnl_close(struct rtnl_handle *rth);
+int rtnl_talk(struct rtnl_handle *rtnl, struct nlmsghdr *n,
+	      struct nlmsghdr **answer)
+	      __attribute__((warn_unused_result));
+
+int addattr(struct nlmsghdr *n, int maxlen, int type);
+int addattr8(struct nlmsghdr *n, int maxlen, int type, __u8 data);
+int addattr16(struct nlmsghdr *n, int maxlen, int type, __u16 data);
+int addattr32(struct nlmsghdr *n, int maxlen, int type, __u32 data);
+int addattr64(struct nlmsghdr *n, int maxlen, int type, __u64 data);
+int addattrstrz(struct nlmsghdr *n, int maxlen, int type, const char *data);
+int addattr_l(struct nlmsghdr *n, int maxlen, int type, const void *data, int alen);
+int addraw_l(struct nlmsghdr *n, int maxlen, const void *data, int len);
+struct rtattr *addattr_nest(struct nlmsghdr *n, int maxlen, int type);
+int addattr_nest_end(struct nlmsghdr *n, struct rtattr *nest);
+#endif /* NETLINK_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
new file mode 100644
index 000000000000..0a6a5561bed3
--- /dev/null
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -0,0 +1,1281 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sched.h>
+
+#include <arpa/inet.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/eventfd.h>
+
+#include <linux/err.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/limits.h>
+
+#include <linux/ip.h>
+#include <netinet/udp.h>
+#include <netinet/tcp.h>
+#include <net/if.h>
+
+#include "bpf_util.h"
+#include "network_helpers.h"
+#include "test_progs.h"
+
+#ifdef TRAFFIC_MONITOR
+/* Prevent pcap.h from including pcap/bpf.h and causing conflicts */
+#define PCAP_DONT_INCLUDE_PCAP_BPF_H 1
+#include <pcap/pcap.h>
+#include <pcap/dlt.h>
+#endif
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+
+#define clean_errno() (errno == 0 ? "None" : strerror(errno))
+#define log_err(MSG, ...) ({						\
+			int __save = errno;				\
+			fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
+				__FILE__, __LINE__, clean_errno(),	\
+				##__VA_ARGS__);				\
+			errno = __save;					\
+})
+
+struct ipv4_packet pkt_v4 = {
+	.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+	.iph.ihl = 5,
+	.iph.protocol = IPPROTO_TCP,
+	.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+	.tcp.urg_ptr = 123,
+	.tcp.doff = 5,
+};
+
+struct ipv6_packet pkt_v6 = {
+	.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+	.iph.nexthdr = IPPROTO_TCP,
+	.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+	.tcp.urg_ptr = 123,
+	.tcp.doff = 5,
+};
+
+static const struct network_helper_opts default_opts;
+
+int settimeo(int fd, int timeout_ms)
+{
+	struct timeval timeout = { .tv_sec = 3 };
+
+	if (timeout_ms > 0) {
+		timeout.tv_sec = timeout_ms / 1000;
+		timeout.tv_usec = (timeout_ms % 1000) * 1000;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeout,
+		       sizeof(timeout))) {
+		log_err("Failed to set SO_RCVTIMEO");
+		return -1;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeout,
+		       sizeof(timeout))) {
+		log_err("Failed to set SO_SNDTIMEO");
+		return -1;
+	}
+
+	return 0;
+}
+
+#define save_errno_close(fd) ({ int __save = errno; close(fd); errno = __save; })
+
+int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen,
+		      const struct network_helper_opts *opts)
+{
+	int on = 1, fd;
+
+	if (!opts)
+		opts = &default_opts;
+
+	fd = socket(addr->ss_family, type, opts->proto);
+	if (fd < 0) {
+		log_err("Failed to create server socket");
+		return -1;
+	}
+
+	if (settimeo(fd, opts->timeout_ms))
+		goto error_close;
+
+	if (type == SOCK_STREAM &&
+	    setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on))) {
+		log_err("Failed to enable SO_REUSEADDR");
+		goto error_close;
+	}
+
+	if (opts->post_socket_cb &&
+	    opts->post_socket_cb(fd, opts->cb_opts)) {
+		log_err("Failed to call post_socket_cb");
+		goto error_close;
+	}
+
+	if (bind(fd, (struct sockaddr *)addr, addrlen) < 0) {
+		log_err("Failed to bind socket");
+		goto error_close;
+	}
+
+	if (type == SOCK_STREAM) {
+		if (listen(fd, opts->backlog ? MAX(opts->backlog, 0) : 1) < 0) {
+			log_err("Failed to listed on socket");
+			goto error_close;
+		}
+	}
+
+	return fd;
+
+error_close:
+	save_errno_close(fd);
+	return -1;
+}
+
+int start_server_str(int family, int type, const char *addr_str, __u16 port,
+		     const struct network_helper_opts *opts)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+
+	if (!opts)
+		opts = &default_opts;
+
+	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
+		return -1;
+
+	return start_server_addr(type, &addr, addrlen, opts);
+}
+
+int start_server(int family, int type, const char *addr_str, __u16 port,
+		 int timeout_ms)
+{
+	struct network_helper_opts opts = {
+		.timeout_ms	= timeout_ms,
+	};
+
+	return start_server_str(family, type, addr_str, port, &opts);
+}
+
+static int reuseport_cb(int fd, void *opts)
+{
+	int on = 1;
+
+	return setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &on, sizeof(on));
+}
+
+int *start_reuseport_server(int family, int type, const char *addr_str,
+			    __u16 port, int timeout_ms, unsigned int nr_listens)
+{
+	struct network_helper_opts opts = {
+		.timeout_ms = timeout_ms,
+		.post_socket_cb = reuseport_cb,
+	};
+	struct sockaddr_storage addr;
+	unsigned int nr_fds = 0;
+	socklen_t addrlen;
+	int *fds;
+
+	if (!nr_listens)
+		return NULL;
+
+	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
+		return NULL;
+
+	fds = malloc(sizeof(*fds) * nr_listens);
+	if (!fds)
+		return NULL;
+
+	fds[0] = start_server_addr(type, &addr, addrlen, &opts);
+	if (fds[0] == -1)
+		goto close_fds;
+	nr_fds = 1;
+
+	if (getsockname(fds[0], (struct sockaddr *)&addr, &addrlen))
+		goto close_fds;
+
+	for (; nr_fds < nr_listens; nr_fds++) {
+		fds[nr_fds] = start_server_addr(type, &addr, addrlen, &opts);
+		if (fds[nr_fds] == -1)
+			goto close_fds;
+	}
+
+	return fds;
+
+close_fds:
+	free_fds(fds, nr_fds);
+	return NULL;
+}
+
+void free_fds(int *fds, unsigned int nr_close_fds)
+{
+	if (fds) {
+		while (nr_close_fds)
+			close(fds[--nr_close_fds]);
+		free(fds);
+	}
+}
+
+int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
+		     int timeout_ms)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen = sizeof(addr);
+	struct sockaddr_in *addr_in;
+	int fd, ret;
+
+	if (getsockname(server_fd, (struct sockaddr *)&addr, &addrlen)) {
+		log_err("Failed to get server addr");
+		return -1;
+	}
+
+	addr_in = (struct sockaddr_in *)&addr;
+	fd = socket(addr_in->sin_family, SOCK_STREAM, 0);
+	if (fd < 0) {
+		log_err("Failed to create client socket");
+		return -1;
+	}
+
+	if (settimeo(fd, timeout_ms))
+		goto error_close;
+
+	ret = sendto(fd, data, data_len, MSG_FASTOPEN, (struct sockaddr *)&addr,
+		     addrlen);
+	if (ret != data_len) {
+		log_err("sendto(data, %u) != %d\n", data_len, ret);
+		goto error_close;
+	}
+
+	return fd;
+
+error_close:
+	save_errno_close(fd);
+	return -1;
+}
+
+int client_socket(int family, int type,
+		  const struct network_helper_opts *opts)
+{
+	int fd;
+
+	if (!opts)
+		opts = &default_opts;
+
+	fd = socket(family, type, opts->proto);
+	if (fd < 0) {
+		log_err("Failed to create client socket");
+		return -1;
+	}
+
+	if (settimeo(fd, opts->timeout_ms))
+		goto error_close;
+
+	if (opts->post_socket_cb &&
+	    opts->post_socket_cb(fd, opts->cb_opts))
+		goto error_close;
+
+	return fd;
+
+error_close:
+	save_errno_close(fd);
+	return -1;
+}
+
+int connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen,
+		    const struct network_helper_opts *opts)
+{
+	int fd;
+
+	if (!opts)
+		opts = &default_opts;
+
+	fd = client_socket(addr->ss_family, type, opts);
+	if (fd < 0) {
+		log_err("Failed to create client socket");
+		return -1;
+	}
+
+	if (connect(fd, (const struct sockaddr *)addr, addrlen)) {
+		log_err("Failed to connect to server");
+		save_errno_close(fd);
+		return -1;
+	}
+
+	return fd;
+}
+
+int connect_to_addr_str(int family, int type, const char *addr_str, __u16 port,
+			const struct network_helper_opts *opts)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+
+	if (!opts)
+		opts = &default_opts;
+
+	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
+		return -1;
+
+	return connect_to_addr(type, &addr, addrlen, opts);
+}
+
+int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen, optlen;
+	int type;
+
+	if (!opts)
+		opts = &default_opts;
+
+	optlen = sizeof(type);
+	if (getsockopt(server_fd, SOL_SOCKET, SO_TYPE, &type, &optlen)) {
+		log_err("getsockopt(SOL_TYPE)");
+		return -1;
+	}
+
+	addrlen = sizeof(addr);
+	if (getsockname(server_fd, (struct sockaddr *)&addr, &addrlen)) {
+		log_err("Failed to get server addr");
+		return -1;
+	}
+
+	return connect_to_addr(type, &addr, addrlen, opts);
+}
+
+int connect_to_fd(int server_fd, int timeout_ms)
+{
+	struct network_helper_opts opts = {
+		.timeout_ms = timeout_ms,
+	};
+	socklen_t optlen;
+	int protocol;
+
+	optlen = sizeof(protocol);
+	if (getsockopt(server_fd, SOL_SOCKET, SO_PROTOCOL, &protocol, &optlen)) {
+		log_err("getsockopt(SOL_PROTOCOL)");
+		return -1;
+	}
+	opts.proto = protocol;
+
+	return connect_to_fd_opts(server_fd, &opts);
+}
+
+int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = sizeof(addr);
+
+	if (settimeo(client_fd, timeout_ms))
+		return -1;
+
+	if (getsockname(server_fd, (struct sockaddr *)&addr, &len)) {
+		log_err("Failed to get server addr");
+		return -1;
+	}
+
+	if (connect(client_fd, (const struct sockaddr *)&addr, len)) {
+		log_err("Failed to connect to server");
+		return -1;
+	}
+
+	return 0;
+}
+
+int make_sockaddr(int family, const char *addr_str, __u16 port,
+		  struct sockaddr_storage *addr, socklen_t *len)
+{
+	if (family == AF_INET) {
+		struct sockaddr_in *sin = (void *)addr;
+
+		memset(addr, 0, sizeof(*sin));
+		sin->sin_family = AF_INET;
+		sin->sin_port = htons(port);
+		if (addr_str &&
+		    inet_pton(AF_INET, addr_str, &sin->sin_addr) != 1) {
+			log_err("inet_pton(AF_INET, %s)", addr_str);
+			return -1;
+		}
+		if (len)
+			*len = sizeof(*sin);
+		return 0;
+	} else if (family == AF_INET6) {
+		struct sockaddr_in6 *sin6 = (void *)addr;
+
+		memset(addr, 0, sizeof(*sin6));
+		sin6->sin6_family = AF_INET6;
+		sin6->sin6_port = htons(port);
+		if (addr_str &&
+		    inet_pton(AF_INET6, addr_str, &sin6->sin6_addr) != 1) {
+			log_err("inet_pton(AF_INET6, %s)", addr_str);
+			return -1;
+		}
+		if (len)
+			*len = sizeof(*sin6);
+		return 0;
+	} else if (family == AF_UNIX) {
+		/* Note that we always use abstract unix sockets to avoid having
+		 * to clean up leftover files.
+		 */
+		struct sockaddr_un *sun = (void *)addr;
+
+		memset(addr, 0, sizeof(*sun));
+		sun->sun_family = family;
+		sun->sun_path[0] = 0;
+		strcpy(sun->sun_path + 1, addr_str);
+		if (len)
+			*len = offsetof(struct sockaddr_un, sun_path) + 1 + strlen(addr_str);
+		return 0;
+	}
+	return -1;
+}
+
+char *ping_command(int family)
+{
+	if (family == AF_INET6) {
+		/* On some systems 'ping' doesn't support IPv6, so use ping6 if it is present. */
+		if (!system("which ping6 >/dev/null 2>&1"))
+			return "ping6";
+		else
+			return "ping -6";
+	}
+	return "ping";
+}
+
+int append_tid(char *str, size_t sz)
+{
+	size_t end;
+
+	if (!str)
+		return -1;
+
+	end = strlen(str);
+	if (end + 8 > sz)
+		return -1;
+
+	sprintf(&str[end], "%07ld", sys_gettid());
+	str[end + 7] = '\0';
+
+	return 0;
+}
+
+int remove_netns(const char *name)
+{
+	char *cmd;
+	int r;
+
+	r = asprintf(&cmd, "ip netns del %s >/dev/null 2>&1", name);
+	if (r < 0) {
+		log_err("Failed to malloc cmd");
+		return -1;
+	}
+
+	r = system(cmd);
+	free(cmd);
+	return r;
+}
+
+int make_netns(const char *name)
+{
+	char *cmd;
+	int r;
+
+	r = asprintf(&cmd, "ip netns add %s", name);
+	if (r < 0) {
+		log_err("Failed to malloc cmd");
+		return -1;
+	}
+
+	r = system(cmd);
+	free(cmd);
+
+	if (r)
+		return r;
+
+	r = asprintf(&cmd, "ip -n %s link set lo up", name);
+	if (r < 0) {
+		log_err("Failed to malloc cmd for setting up lo");
+		remove_netns(name);
+		return -1;
+	}
+
+	r = system(cmd);
+	free(cmd);
+
+	return r;
+}
+
+struct nstoken {
+	int orig_netns_fd;
+};
+
+struct nstoken *open_netns(const char *name)
+{
+	int nsfd;
+	char nspath[PATH_MAX];
+	int err;
+	struct nstoken *token;
+
+	token = calloc(1, sizeof(struct nstoken));
+	if (!token) {
+		log_err("Failed to malloc token");
+		return NULL;
+	}
+
+	token->orig_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (token->orig_netns_fd == -1) {
+		log_err("Failed to open(/proc/self/ns/net)");
+		goto fail;
+	}
+
+	snprintf(nspath, sizeof(nspath), "%s/%s", "/var/run/netns", name);
+	nsfd = open(nspath, O_RDONLY | O_CLOEXEC);
+	if (nsfd == -1) {
+		log_err("Failed to open(%s)", nspath);
+		goto fail;
+	}
+
+	err = setns(nsfd, CLONE_NEWNET);
+	close(nsfd);
+	if (err) {
+		log_err("Failed to setns(nsfd)");
+		goto fail;
+	}
+
+	return token;
+fail:
+	if (token->orig_netns_fd != -1)
+		close(token->orig_netns_fd);
+	free(token);
+	return NULL;
+}
+
+void close_netns(struct nstoken *token)
+{
+	if (!token)
+		return;
+
+	if (setns(token->orig_netns_fd, CLONE_NEWNET))
+		log_err("Failed to setns(orig_netns_fd)");
+	close(token->orig_netns_fd);
+	free(token);
+}
+
+int open_tuntap(const char *dev_name, bool need_mac)
+{
+	int err = 0;
+	struct ifreq ifr;
+	int fd = open("/dev/net/tun", O_RDWR);
+
+	if (!ASSERT_GE(fd, 0, "open(/dev/net/tun)"))
+		return -1;
+
+	ifr.ifr_flags = IFF_NO_PI | (need_mac ? IFF_TAP : IFF_TUN);
+	strncpy(ifr.ifr_name, dev_name, IFNAMSIZ - 1);
+	ifr.ifr_name[IFNAMSIZ - 1] = '\0';
+
+	err = ioctl(fd, TUNSETIFF, &ifr);
+	if (!ASSERT_OK(err, "ioctl(TUNSETIFF)")) {
+		close(fd);
+		return -1;
+	}
+
+	err = fcntl(fd, F_SETFL, O_NONBLOCK);
+	if (!ASSERT_OK(err, "fcntl(O_NONBLOCK)")) {
+		close(fd);
+		return -1;
+	}
+
+	return fd;
+}
+
+int get_socket_local_port(int sock_fd)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen = sizeof(addr);
+	int err;
+
+	err = getsockname(sock_fd, (struct sockaddr *)&addr, &addrlen);
+	if (err < 0)
+		return err;
+
+	if (addr.ss_family == AF_INET) {
+		struct sockaddr_in *sin = (struct sockaddr_in *)&addr;
+
+		return sin->sin_port;
+	} else if (addr.ss_family == AF_INET6) {
+		struct sockaddr_in6 *sin = (struct sockaddr_in6 *)&addr;
+
+		return sin->sin6_port;
+	}
+
+	return -1;
+}
+
+int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param)
+{
+	struct ifreq ifr = {0};
+	int sockfd, err;
+
+	sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sockfd < 0)
+		return -errno;
+
+	memcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+
+	ring_param->cmd = ETHTOOL_GRINGPARAM;
+	ifr.ifr_data = (char *)ring_param;
+
+	if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) {
+		err = errno;
+		close(sockfd);
+		return -err;
+	}
+
+	close(sockfd);
+	return 0;
+}
+
+int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param)
+{
+	struct ifreq ifr = {0};
+	int sockfd, err;
+
+	sockfd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sockfd < 0)
+		return -errno;
+
+	memcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+
+	ring_param->cmd = ETHTOOL_SRINGPARAM;
+	ifr.ifr_data = (char *)ring_param;
+
+	if (ioctl(sockfd, SIOCETHTOOL, &ifr) < 0) {
+		err = errno;
+		close(sockfd);
+		return -err;
+	}
+
+	close(sockfd);
+	return 0;
+}
+
+struct send_recv_arg {
+	int		fd;
+	uint32_t	bytes;
+	int		stop;
+};
+
+static void *send_recv_server(void *arg)
+{
+	struct send_recv_arg *a = (struct send_recv_arg *)arg;
+	ssize_t nr_sent = 0, bytes = 0;
+	char batch[1500];
+	int err = 0, fd;
+
+	fd = accept(a->fd, NULL, NULL);
+	while (fd == -1) {
+		if (errno == EINTR)
+			continue;
+		err = -errno;
+		goto done;
+	}
+
+	if (settimeo(fd, 0)) {
+		err = -errno;
+		goto done;
+	}
+
+	while (bytes < a->bytes && !READ_ONCE(a->stop)) {
+		nr_sent = send(fd, &batch,
+			       MIN(a->bytes - bytes, sizeof(batch)), 0);
+		if (nr_sent == -1 && errno == EINTR)
+			continue;
+		if (nr_sent == -1) {
+			err = -errno;
+			break;
+		}
+		bytes += nr_sent;
+	}
+
+	if (bytes != a->bytes) {
+		log_err("send %zd expected %u", bytes, a->bytes);
+		if (!err)
+			err = bytes > a->bytes ? -E2BIG : -EINTR;
+	}
+
+done:
+	if (fd >= 0)
+		close(fd);
+	if (err) {
+		WRITE_ONCE(a->stop, 1);
+		return ERR_PTR(err);
+	}
+	return NULL;
+}
+
+int send_recv_data(int lfd, int fd, uint32_t total_bytes)
+{
+	ssize_t nr_recv = 0, bytes = 0;
+	struct send_recv_arg arg = {
+		.fd	= lfd,
+		.bytes	= total_bytes,
+		.stop	= 0,
+	};
+	pthread_t srv_thread;
+	void *thread_ret;
+	char batch[1500];
+	int err = 0;
+
+	err = pthread_create(&srv_thread, NULL, send_recv_server, (void *)&arg);
+	if (err) {
+		log_err("Failed to pthread_create");
+		return err;
+	}
+
+	/* recv total_bytes */
+	while (bytes < total_bytes && !READ_ONCE(arg.stop)) {
+		nr_recv = recv(fd, &batch,
+			       MIN(total_bytes - bytes, sizeof(batch)), 0);
+		if (nr_recv == -1 && errno == EINTR)
+			continue;
+		if (nr_recv == -1) {
+			err = -errno;
+			break;
+		}
+		bytes += nr_recv;
+	}
+
+	if (bytes != total_bytes) {
+		log_err("recv %zd expected %u", bytes, total_bytes);
+		if (!err)
+			err = bytes > total_bytes ? -E2BIG : -EINTR;
+	}
+
+	WRITE_ONCE(arg.stop, 1);
+	pthread_join(srv_thread, &thread_ret);
+	if (IS_ERR(thread_ret)) {
+		log_err("Failed in thread_ret %ld", PTR_ERR(thread_ret));
+		err = err ? : PTR_ERR(thread_ret);
+	}
+
+	return err;
+}
+
+int tc_prog_attach(const char *dev, int ingress_fd, int egress_fd)
+{
+	int ifindex, ret;
+
+	if (!ASSERT_TRUE(ingress_fd >= 0 || egress_fd >= 0,
+			 "at least one program fd is valid"))
+		return -1;
+
+	ifindex = if_nametoindex(dev);
+	if (!ASSERT_NEQ(ifindex, 0, "get ifindex"))
+		return -1;
+
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = ifindex,
+			    .attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS);
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts1, .handle = 1,
+			    .priority = 1, .prog_fd = ingress_fd);
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts2, .handle = 1,
+			    .priority = 1, .prog_fd = egress_fd);
+
+	ret = bpf_tc_hook_create(&hook);
+	if (!ASSERT_OK(ret, "create tc hook"))
+		return ret;
+
+	if (ingress_fd >= 0) {
+		hook.attach_point = BPF_TC_INGRESS;
+		ret = bpf_tc_attach(&hook, &opts1);
+		if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+			bpf_tc_hook_destroy(&hook);
+			return ret;
+		}
+	}
+
+	if (egress_fd >= 0) {
+		hook.attach_point = BPF_TC_EGRESS;
+		ret = bpf_tc_attach(&hook, &opts2);
+		if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+			bpf_tc_hook_destroy(&hook);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+#ifdef TRAFFIC_MONITOR
+struct tmonitor_ctx {
+	pcap_t *pcap;
+	pcap_dumper_t *dumper;
+	pthread_t thread;
+	int wake_fd;
+
+	volatile bool done;
+	char pkt_fname[PATH_MAX];
+	int pcap_fd;
+};
+
+static int __base_pr(const char *format, va_list args)
+{
+	return vfprintf(stdout, format, args);
+}
+
+static tm_print_fn_t __tm_pr = __base_pr;
+
+tm_print_fn_t traffic_monitor_set_print(tm_print_fn_t fn)
+{
+	tm_print_fn_t old_print_fn;
+
+	old_print_fn = __atomic_exchange_n(&__tm_pr, fn, __ATOMIC_RELAXED);
+
+	return old_print_fn;
+}
+
+void tm_print(const char *format, ...)
+{
+	tm_print_fn_t print_fn;
+	va_list args;
+
+	print_fn = __atomic_load_n(&__tm_pr, __ATOMIC_RELAXED);
+	if (!print_fn)
+		return;
+
+	va_start(args, format);
+	print_fn(format, args);
+	va_end(args);
+}
+
+/* Is this packet captured with a Ethernet protocol type? */
+static bool is_ethernet(const u_char *packet)
+{
+	u16 arphdr_type;
+
+	memcpy(&arphdr_type, packet + 8, 2);
+	arphdr_type = ntohs(arphdr_type);
+
+	/* Except the following cases, the protocol type contains the
+	 * Ethernet protocol type for the packet.
+	 *
+	 * https://www.tcpdump.org/linktypes/LINKTYPE_LINUX_SLL2.html
+	 */
+	switch (arphdr_type) {
+	case 770: /* ARPHRD_FRAD */
+	case 778: /* ARPHDR_IPGRE */
+	case 803: /* ARPHRD_IEEE80211_RADIOTAP */
+		tm_print("Packet captured: arphdr_type=%d\n", arphdr_type);
+		return false;
+	}
+	return true;
+}
+
+static const char * const pkt_types[] = {
+	"In",
+	"B",			/* Broadcast */
+	"M",			/* Multicast */
+	"C",			/* Captured with the promiscuous mode */
+	"Out",
+};
+
+static const char *pkt_type_str(u16 pkt_type)
+{
+	if (pkt_type < ARRAY_SIZE(pkt_types))
+		return pkt_types[pkt_type];
+	return "Unknown";
+}
+
+#define MAX_FLAGS_STRLEN 21
+/* Show the information of the transport layer in the packet */
+static void show_transport(const u_char *packet, u16 len, u32 ifindex,
+			   const char *src_addr, const char *dst_addr,
+			   u16 proto, bool ipv6, u8 pkt_type)
+{
+	char *ifname, _ifname[IF_NAMESIZE], flags[MAX_FLAGS_STRLEN] = "";
+	const char *transport_str;
+	u16 src_port, dst_port;
+	struct udphdr *udp;
+	struct tcphdr *tcp;
+
+	ifname = if_indextoname(ifindex, _ifname);
+	if (!ifname) {
+		snprintf(_ifname, sizeof(_ifname), "unknown(%d)", ifindex);
+		ifname = _ifname;
+	}
+
+	if (proto == IPPROTO_UDP) {
+		udp = (struct udphdr *)packet;
+		src_port = ntohs(udp->source);
+		dst_port = ntohs(udp->dest);
+		transport_str = "UDP";
+	} else if (proto == IPPROTO_TCP) {
+		tcp = (struct tcphdr *)packet;
+		src_port = ntohs(tcp->source);
+		dst_port = ntohs(tcp->dest);
+		transport_str = "TCP";
+	} else if (proto == IPPROTO_ICMP) {
+		tm_print("%-7s %-3s IPv4 %s > %s: ICMP, length %d, type %d, code %d\n",
+			 ifname, pkt_type_str(pkt_type), src_addr, dst_addr, len,
+			 packet[0], packet[1]);
+		return;
+	} else if (proto == IPPROTO_ICMPV6) {
+		tm_print("%-7s %-3s IPv6 %s > %s: ICMPv6, length %d, type %d, code %d\n",
+			 ifname, pkt_type_str(pkt_type), src_addr, dst_addr, len,
+			 packet[0], packet[1]);
+		return;
+	} else {
+		tm_print("%-7s %-3s %s %s > %s: protocol %d\n",
+			 ifname, pkt_type_str(pkt_type), ipv6 ? "IPv6" : "IPv4",
+			 src_addr, dst_addr, proto);
+		return;
+	}
+
+	/* TCP or UDP*/
+
+	if (proto == IPPROTO_TCP)
+		snprintf(flags, MAX_FLAGS_STRLEN, "%s%s%s%s",
+			 tcp->fin ? ", FIN" : "",
+			 tcp->syn ? ", SYN" : "",
+			 tcp->rst ? ", RST" : "",
+			 tcp->ack ? ", ACK" : "");
+
+	if (ipv6)
+		tm_print("%-7s %-3s IPv6 %s.%d > %s.%d: %s, length %d%s\n",
+			 ifname, pkt_type_str(pkt_type), src_addr, src_port,
+			 dst_addr, dst_port, transport_str, len, flags);
+	else
+		tm_print("%-7s %-3s IPv4 %s:%d > %s:%d: %s, length %d%s\n",
+			 ifname, pkt_type_str(pkt_type), src_addr, src_port,
+			 dst_addr, dst_port, transport_str, len, flags);
+}
+
+static void show_ipv6_packet(const u_char *packet, u32 ifindex, u8 pkt_type)
+{
+	char src_buf[INET6_ADDRSTRLEN], dst_buf[INET6_ADDRSTRLEN];
+	struct ipv6hdr *pkt = (struct ipv6hdr *)packet;
+	const char *src, *dst;
+	u_char proto;
+
+	src = inet_ntop(AF_INET6, &pkt->saddr, src_buf, sizeof(src_buf));
+	if (!src)
+		src = "<invalid>";
+	dst = inet_ntop(AF_INET6, &pkt->daddr, dst_buf, sizeof(dst_buf));
+	if (!dst)
+		dst = "<invalid>";
+	proto = pkt->nexthdr;
+	show_transport(packet + sizeof(struct ipv6hdr),
+		       ntohs(pkt->payload_len),
+		       ifindex, src, dst, proto, true, pkt_type);
+}
+
+static void show_ipv4_packet(const u_char *packet, u32 ifindex, u8 pkt_type)
+{
+	char src_buf[INET_ADDRSTRLEN], dst_buf[INET_ADDRSTRLEN];
+	struct iphdr *pkt = (struct iphdr *)packet;
+	const char *src, *dst;
+	u_char proto;
+
+	src = inet_ntop(AF_INET, &pkt->saddr, src_buf, sizeof(src_buf));
+	if (!src)
+		src = "<invalid>";
+	dst = inet_ntop(AF_INET, &pkt->daddr, dst_buf, sizeof(dst_buf));
+	if (!dst)
+		dst = "<invalid>";
+	proto = pkt->protocol;
+	show_transport(packet + sizeof(struct iphdr),
+		       ntohs(pkt->tot_len),
+		       ifindex, src, dst, proto, false, pkt_type);
+}
+
+static void *traffic_monitor_thread(void *arg)
+{
+	char *ifname, _ifname[IF_NAMESIZE];
+	const u_char *packet, *payload;
+	struct tmonitor_ctx *ctx = arg;
+	pcap_dumper_t *dumper = ctx->dumper;
+	int fd = ctx->pcap_fd, nfds, r;
+	int wake_fd = ctx->wake_fd;
+	struct pcap_pkthdr header;
+	pcap_t *pcap = ctx->pcap;
+	u32 ifindex;
+	fd_set fds;
+	u16 proto;
+	u8 ptype;
+
+	nfds = (fd > wake_fd ? fd : wake_fd) + 1;
+	FD_ZERO(&fds);
+
+	while (!ctx->done) {
+		FD_SET(fd, &fds);
+		FD_SET(wake_fd, &fds);
+		r = select(nfds, &fds, NULL, NULL, NULL);
+		if (!r)
+			continue;
+		if (r < 0) {
+			if (errno == EINTR)
+				continue;
+			log_err("Fail to select on pcap fd and wake fd");
+			break;
+		}
+
+		/* This instance of pcap is non-blocking */
+		packet = pcap_next(pcap, &header);
+		if (!packet)
+			continue;
+
+		/* According to the man page of pcap_dump(), first argument
+		 * is the pcap_dumper_t pointer even it's argument type is
+		 * u_char *.
+		 */
+		pcap_dump((u_char *)dumper, &header, packet);
+
+		/* Not sure what other types of packets look like. Here, we
+		 * parse only Ethernet and compatible packets.
+		 */
+		if (!is_ethernet(packet))
+			continue;
+
+		/* Skip SLL2 header
+		 * https://www.tcpdump.org/linktypes/LINKTYPE_LINUX_SLL2.html
+		 *
+		 * Although the document doesn't mention that, the payload
+		 * doesn't include the Ethernet header. The payload starts
+		 * from the first byte of the network layer header.
+		 */
+		payload = packet + 20;
+
+		memcpy(&proto, packet, 2);
+		proto = ntohs(proto);
+		memcpy(&ifindex, packet + 4, 4);
+		ifindex = ntohl(ifindex);
+		ptype = packet[10];
+
+		if (proto == ETH_P_IPV6) {
+			show_ipv6_packet(payload, ifindex, ptype);
+		} else if (proto == ETH_P_IP) {
+			show_ipv4_packet(payload, ifindex, ptype);
+		} else {
+			ifname = if_indextoname(ifindex, _ifname);
+			if (!ifname) {
+				snprintf(_ifname, sizeof(_ifname), "unknown(%d)", ifindex);
+				ifname = _ifname;
+			}
+
+			tm_print("%-7s %-3s Unknown network protocol type 0x%x\n",
+				 ifname, pkt_type_str(ptype), proto);
+		}
+	}
+
+	return NULL;
+}
+
+/* Prepare the pcap handle to capture packets.
+ *
+ * This pcap is non-blocking and immediate mode is enabled to receive
+ * captured packets as soon as possible.  The snaplen is set to 1024 bytes
+ * to limit the size of captured content. The format of the link-layer
+ * header is set to DLT_LINUX_SLL2 to enable handling various link-layer
+ * technologies.
+ */
+static pcap_t *traffic_monitor_prepare_pcap(void)
+{
+	char errbuf[PCAP_ERRBUF_SIZE];
+	pcap_t *pcap;
+	int r;
+
+	/* Listen on all NICs in the namespace */
+	pcap = pcap_create("any", errbuf);
+	if (!pcap) {
+		log_err("Failed to open pcap: %s", errbuf);
+		return NULL;
+	}
+	/* Limit the size of the packet (first N bytes) */
+	r = pcap_set_snaplen(pcap, 1024);
+	if (r) {
+		log_err("Failed to set snaplen: %s", pcap_geterr(pcap));
+		goto error;
+	}
+	/* To receive packets as fast as possible */
+	r = pcap_set_immediate_mode(pcap, 1);
+	if (r) {
+		log_err("Failed to set immediate mode: %s", pcap_geterr(pcap));
+		goto error;
+	}
+	r = pcap_setnonblock(pcap, 1, errbuf);
+	if (r) {
+		log_err("Failed to set nonblock: %s", errbuf);
+		goto error;
+	}
+	r = pcap_activate(pcap);
+	if (r) {
+		log_err("Failed to activate pcap: %s", pcap_geterr(pcap));
+		goto error;
+	}
+	/* Determine the format of the link-layer header */
+	r = pcap_set_datalink(pcap, DLT_LINUX_SLL2);
+	if (r) {
+		log_err("Failed to set datalink: %s", pcap_geterr(pcap));
+		goto error;
+	}
+
+	return pcap;
+error:
+	pcap_close(pcap);
+	return NULL;
+}
+
+static void encode_test_name(char *buf, size_t len, const char *test_name, const char *subtest_name)
+{
+	char *p;
+
+	if (subtest_name)
+		snprintf(buf, len, "%s__%s", test_name, subtest_name);
+	else
+		snprintf(buf, len, "%s", test_name);
+	while ((p = strchr(buf, '/')))
+		*p = '_';
+	while ((p = strchr(buf, ' ')))
+		*p = '_';
+}
+
+#define PCAP_DIR "/tmp/tmon_pcap"
+
+/* Start to monitor the network traffic in the given network namespace.
+ *
+ * netns: the name of the network namespace to monitor. If NULL, the
+ *        current network namespace is monitored.
+ * test_name: the name of the running test.
+ * subtest_name: the name of the running subtest if there is. It should be
+ *               NULL if it is not a subtest.
+ *
+ * This function will start a thread to capture packets going through NICs
+ * in the give network namespace.
+ */
+struct tmonitor_ctx *traffic_monitor_start(const char *netns, const char *test_name,
+					   const char *subtest_name)
+{
+	struct nstoken *nstoken = NULL;
+	struct tmonitor_ctx *ctx;
+	char test_name_buf[64];
+	static int tmon_seq;
+	int r;
+
+	if (netns) {
+		nstoken = open_netns(netns);
+		if (!nstoken)
+			return NULL;
+	}
+	ctx = malloc(sizeof(*ctx));
+	if (!ctx) {
+		log_err("Failed to malloc ctx");
+		goto fail_ctx;
+	}
+	memset(ctx, 0, sizeof(*ctx));
+
+	encode_test_name(test_name_buf, sizeof(test_name_buf), test_name, subtest_name);
+	snprintf(ctx->pkt_fname, sizeof(ctx->pkt_fname),
+		 PCAP_DIR "/packets-%d-%d-%s-%s.log", getpid(), tmon_seq++,
+		 test_name_buf, netns ? netns : "unknown");
+
+	r = mkdir(PCAP_DIR, 0755);
+	if (r && errno != EEXIST) {
+		log_err("Failed to create " PCAP_DIR);
+		goto fail_pcap;
+	}
+
+	ctx->pcap = traffic_monitor_prepare_pcap();
+	if (!ctx->pcap)
+		goto fail_pcap;
+	ctx->pcap_fd = pcap_get_selectable_fd(ctx->pcap);
+	if (ctx->pcap_fd < 0) {
+		log_err("Failed to get pcap fd");
+		goto fail_dumper;
+	}
+
+	/* Create a packet file */
+	ctx->dumper = pcap_dump_open(ctx->pcap, ctx->pkt_fname);
+	if (!ctx->dumper) {
+		log_err("Failed to open pcap dump: %s", ctx->pkt_fname);
+		goto fail_dumper;
+	}
+
+	/* Create an eventfd to wake up the monitor thread */
+	ctx->wake_fd = eventfd(0, 0);
+	if (ctx->wake_fd < 0) {
+		log_err("Failed to create eventfd");
+		goto fail_eventfd;
+	}
+
+	r = pthread_create(&ctx->thread, NULL, traffic_monitor_thread, ctx);
+	if (r) {
+		log_err("Failed to create thread");
+		goto fail;
+	}
+
+	close_netns(nstoken);
+
+	return ctx;
+
+fail:
+	close(ctx->wake_fd);
+
+fail_eventfd:
+	pcap_dump_close(ctx->dumper);
+	unlink(ctx->pkt_fname);
+
+fail_dumper:
+	pcap_close(ctx->pcap);
+
+fail_pcap:
+	free(ctx);
+
+fail_ctx:
+	close_netns(nstoken);
+
+	return NULL;
+}
+
+static void traffic_monitor_release(struct tmonitor_ctx *ctx)
+{
+	pcap_close(ctx->pcap);
+	pcap_dump_close(ctx->dumper);
+
+	close(ctx->wake_fd);
+
+	free(ctx);
+}
+
+/* Stop the network traffic monitor.
+ *
+ * ctx: the context returned by traffic_monitor_start()
+ */
+void traffic_monitor_stop(struct tmonitor_ctx *ctx)
+{
+	__u64 w = 1;
+
+	if (!ctx)
+		return;
+
+	/* Stop the monitor thread */
+	ctx->done = true;
+	/* Wake up the background thread. */
+	write(ctx->wake_fd, &w, sizeof(w));
+	pthread_join(ctx->thread, NULL);
+
+	tm_print("Packet file: %s\n", strrchr(ctx->pkt_fname, '/') + 1);
+
+	traffic_monitor_release(ctx);
+}
+
+#endif /* TRAFFIC_MONITOR */
diff --git a/tools/testing/selftests/bpf/network_helpers.h b/tools/testing/selftests/bpf/network_helpers.h
new file mode 100644
index 000000000000..79a010c88e11
--- /dev/null
+++ b/tools/testing/selftests/bpf/network_helpers.h
@@ -0,0 +1,296 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NETWORK_HELPERS_H
+#define __NETWORK_HELPERS_H
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <linux/types.h>
+typedef __u16 __sum16;
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_tun.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#include <linux/err.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <bpf/bpf_endian.h>
+#include <net/if.h>
+#include <stdio.h>
+
+#define MAGIC_VAL 0x1234
+#define NUM_ITER 100000
+#define VIP_NUM 5
+#define MAGIC_BYTES 123
+
+struct network_helper_opts {
+	int timeout_ms;
+	int proto;
+	/* +ve: Passed to listen() as-is.
+	 *   0: Default when the test does not set
+	 *      a particular value during the struct init.
+	 *      It is changed to 1 before passing to listen().
+	 *      Most tests only have one on-going connection.
+	 * -ve: It is changed to 0 before passing to listen().
+	 *      It is useful to force syncookie without
+	 *	changing the "tcp_syncookies" sysctl from 1 to 2.
+	 */
+	int backlog;
+	int (*post_socket_cb)(int fd, void *opts);
+	void *cb_opts;
+};
+
+/* ipv4 test vector */
+struct ipv4_packet {
+	struct ethhdr eth;
+	struct iphdr iph;
+	struct tcphdr tcp;
+} __packed;
+extern struct ipv4_packet pkt_v4;
+
+/* ipv6 test vector */
+struct ipv6_packet {
+	struct ethhdr eth;
+	struct ipv6hdr iph;
+	struct tcphdr tcp;
+} __packed;
+extern struct ipv6_packet pkt_v6;
+
+int settimeo(int fd, int timeout_ms);
+int start_server_str(int family, int type, const char *addr_str, __u16 port,
+		     const struct network_helper_opts *opts);
+int start_server(int family, int type, const char *addr, __u16 port,
+		 int timeout_ms);
+int *start_reuseport_server(int family, int type, const char *addr_str,
+			    __u16 port, int timeout_ms,
+			    unsigned int nr_listens);
+int start_server_addr(int type, const struct sockaddr_storage *addr, socklen_t len,
+		      const struct network_helper_opts *opts);
+void free_fds(int *fds, unsigned int nr_close_fds);
+int client_socket(int family, int type,
+		  const struct network_helper_opts *opts);
+int connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t len,
+		    const struct network_helper_opts *opts);
+int connect_to_addr_str(int family, int type, const char *addr_str, __u16 port,
+			const struct network_helper_opts *opts);
+int connect_to_fd(int server_fd, int timeout_ms);
+int connect_to_fd_opts(int server_fd, const struct network_helper_opts *opts);
+int connect_fd_to_fd(int client_fd, int server_fd, int timeout_ms);
+int fastopen_connect(int server_fd, const char *data, unsigned int data_len,
+		     int timeout_ms);
+int make_sockaddr(int family, const char *addr_str, __u16 port,
+		  struct sockaddr_storage *addr, socklen_t *len);
+char *ping_command(int family);
+int get_socket_local_port(int sock_fd);
+int get_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param);
+int set_hw_ring_size(char *ifname, struct ethtool_ringparam *ring_param);
+
+int open_tuntap(const char *dev_name, bool need_mac);
+
+struct nstoken;
+/**
+ * open_netns() - Switch to specified network namespace by name.
+ *
+ * Returns token with which to restore the original namespace
+ * using close_netns().
+ */
+struct nstoken *open_netns(const char *name);
+void close_netns(struct nstoken *token);
+int send_recv_data(int lfd, int fd, uint32_t total_bytes);
+int make_netns(const char *name);
+int remove_netns(const char *name);
+
+/**
+ * append_tid() - Append thread ID to the given string.
+ *
+ * @str: string to extend
+ * @sz: string's size
+ *
+ * 8 characters are used to append the thread ID (7 digits + '\0')
+ *
+ * Returns -1 on errors, 0 otherwise
+ */
+int append_tid(char *str, size_t sz);
+
+static __u16 csum_fold(__u32 csum)
+{
+	csum = (csum & 0xffff) + (csum >> 16);
+	csum = (csum & 0xffff) + (csum >> 16);
+
+	return (__u16)~csum;
+}
+
+static __wsum csum_partial(const void *buf, int len, __wsum sum)
+{
+	__u16 *p = (__u16 *)buf;
+	int num_u16 = len >> 1;
+	int i;
+
+	for (i = 0; i < num_u16; i++)
+		sum += p[i];
+
+	return sum;
+}
+
+static inline __sum16 build_ip_csum(struct iphdr *iph)
+{
+	__u32 sum = 0;
+	__u16 *p;
+
+	iph->check = 0;
+	p = (void *)iph;
+	sum = csum_partial(p, iph->ihl << 2, 0);
+
+	return csum_fold(sum);
+}
+
+/**
+ * csum_tcpudp_magic - compute IP pseudo-header checksum
+ *
+ * Compute the IPv4 pseudo header checksum. The helper can take a
+ * accumulated sum from the transport layer to accumulate it and directly
+ * return the transport layer
+ *
+ * @saddr: IP source address
+ * @daddr: IP dest address
+ * @len: IP data size
+ * @proto: transport layer protocol
+ * @csum: The accumulated partial sum to add to the computation
+ *
+ * Returns the folded sum
+ */
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+					__u32 len, __u8 proto,
+					__wsum csum)
+{
+	__u64 s = csum;
+
+	s += (__u32)saddr;
+	s += (__u32)daddr;
+	s += htons(proto + len);
+	s = (s & 0xffffffff) + (s >> 32);
+	s = (s & 0xffffffff) + (s >> 32);
+
+	return csum_fold((__u32)s);
+}
+
+/**
+ * csum_ipv6_magic - compute IPv6 pseudo-header checksum
+ *
+ * Compute the ipv6 pseudo header checksum. The helper can take a
+ * accumulated sum from the transport layer to accumulate it and directly
+ * return the transport layer
+ *
+ * @saddr: IPv6 source address
+ * @daddr: IPv6 dest address
+ * @len: IPv6 data size
+ * @proto: transport layer protocol
+ * @csum: The accumulated partial sum to add to the computation
+ *
+ * Returns the folded sum
+ */
+static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+				      const struct in6_addr *daddr,
+					__u32 len, __u8 proto,
+					__wsum csum)
+{
+	__u64 s = csum;
+	int i;
+
+	for (i = 0; i < 4; i++)
+		s += (__u32)saddr->s6_addr32[i];
+	for (i = 0; i < 4; i++)
+		s += (__u32)daddr->s6_addr32[i];
+	s += htons(proto + len);
+	s = (s & 0xffffffff) + (s >> 32);
+	s = (s & 0xffffffff) + (s >> 32);
+
+	return csum_fold((__u32)s);
+}
+
+/**
+ * build_udp_v4_csum - compute UDP checksum for UDP over IPv4
+ *
+ * Compute the checksum to embed in UDP header, composed of the sum of IP
+ * pseudo-header checksum, UDP header checksum and UDP data checksum
+ * @iph IP header
+ * @udph UDP header, which must be immediately followed by UDP data
+ *
+ * Returns the total checksum
+ */
+
+static inline __sum16 build_udp_v4_csum(const struct iphdr *iph,
+					const struct udphdr *udph)
+{
+	unsigned long sum;
+
+	sum = csum_partial(udph, ntohs(udph->len), 0);
+	return csum_tcpudp_magic(iph->saddr, iph->daddr, ntohs(udph->len),
+				 IPPROTO_UDP, sum);
+}
+
+/**
+ * build_udp_v6_csum - compute UDP checksum for UDP over IPv6
+ *
+ * Compute the checksum to embed in UDP header, composed of the sum of IPv6
+ * pseudo-header checksum, UDP header checksum and UDP data checksum
+ * @ip6h IPv6 header
+ * @udph UDP header, which must be immediately followed by UDP data
+ *
+ * Returns the total checksum
+ */
+static inline __sum16 build_udp_v6_csum(const struct ipv6hdr *ip6h,
+					const struct udphdr *udph)
+{
+	unsigned long sum;
+
+	sum = csum_partial(udph, ntohs(udph->len), 0);
+	return csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr, ntohs(udph->len),
+			       IPPROTO_UDP, sum);
+}
+
+struct tmonitor_ctx;
+
+typedef int (*tm_print_fn_t)(const char *format, va_list args);
+
+/**
+ * tc_prog_attach - attach BPF program(s) to an interface
+ *
+ * Takes file descriptors pointing to at least one, at most two BPF
+ * programs, and attach those programs to an interface ingress, egress or
+ * both.
+ *
+ * @dev: string containing the interface name
+ * @ingress_fd: file descriptor of the program to attach to interface ingress
+ * @egress_fd: file descriptor of the program to attach to interface egress
+ *
+ * Returns 0 on success, -1 if no valid file descriptor has been found, if
+ * the interface name is invalid or if an error ocurred during attach.
+ */
+int tc_prog_attach(const char *dev, int ingress_fd, int egress_fd);
+
+#ifdef TRAFFIC_MONITOR
+struct tmonitor_ctx *traffic_monitor_start(const char *netns, const char *test_name,
+					   const char *subtest_name);
+void traffic_monitor_stop(struct tmonitor_ctx *ctx);
+tm_print_fn_t traffic_monitor_set_print(tm_print_fn_t fn);
+#else
+static inline struct tmonitor_ctx *traffic_monitor_start(const char *netns, const char *test_name,
+							 const char *subtest_name)
+{
+	return NULL;
+}
+
+static inline void traffic_monitor_stop(struct tmonitor_ctx *ctx)
+{
+}
+
+static inline tm_print_fn_t traffic_monitor_set_print(tm_print_fn_t fn)
+{
+	return NULL;
+}
+#endif
+
+#endif
diff --git a/tools/testing/selftests/bpf/prog_tests/.gitignore b/tools/testing/selftests/bpf/prog_tests/.gitignore
new file mode 100644
index 000000000000..89c4a3d37544
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+tests.h
diff --git a/tools/testing/selftests/bpf/prog_tests/access_variable_array.c b/tools/testing/selftests/bpf/prog_tests/access_variable_array.c
new file mode 100644
index 000000000000..08131782437c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/access_variable_array.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include <test_progs.h>
+#include "test_access_variable_array.skel.h"
+
+void test_access_variable_array(void)
+{
+	struct test_access_variable_array *skel;
+
+	skel = test_access_variable_array__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_access_variable_array__open_and_load"))
+		return;
+
+	test_access_variable_array__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/align.c b/tools/testing/selftests/bpf/prog_tests/align.c
new file mode 100644
index 000000000000..24c509ce4e5b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/align.c
@@ -0,0 +1,712 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+#define MAX_INSNS	512
+#define MAX_MATCHES	24
+
+struct bpf_reg_match {
+	unsigned int line;
+	const char *reg;
+	const char *match;
+};
+
+struct bpf_align_test {
+	const char *descr;
+	struct bpf_insn	insns[MAX_INSNS];
+	enum {
+		UNDEF,
+		ACCEPT,
+		REJECT
+	} result;
+	enum bpf_prog_type prog_type;
+	/* Matches must be in order of increasing line */
+	struct bpf_reg_match matches[MAX_MATCHES];
+};
+
+static struct bpf_align_test tests[] = {
+	/* Four tests of known constants.  These aren't staggeringly
+	 * interesting since we track exact values now.
+	 */
+	{
+		.descr = "mov",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 2),
+			BPF_MOV64_IMM(BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+			BPF_MOV64_IMM(BPF_REG_3, 16),
+			BPF_MOV64_IMM(BPF_REG_3, 32),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{0, "R1", "ctx()"},
+			{0, "R10", "fp0"},
+			{0, "R3", "2"},
+			{1, "R3", "4"},
+			{2, "R3", "8"},
+			{3, "R3", "16"},
+			{4, "R3", "32"},
+		},
+	},
+	{
+		.descr = "shift",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_4, 32),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{0, "R1", "ctx()"},
+			{0, "R10", "fp0"},
+			{0, "R3", "1"},
+			{1, "R3", "2"},
+			{2, "R3", "4"},
+			{3, "R3", "8"},
+			{4, "R3", "16"},
+			{5, "R3", "1"},
+			{6, "R4", "32"},
+			{7, "R4", "16"},
+			{8, "R4", "8"},
+			{9, "R4", "4"},
+			{10, "R4", "2"},
+		},
+	},
+	{
+		.descr = "addsub",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 2),
+			BPF_MOV64_IMM(BPF_REG_4, 8),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{0, "R1", "ctx()"},
+			{0, "R10", "fp0"},
+			{0, "R3", "4"},
+			{1, "R3", "8"},
+			{2, "R3", "10"},
+			{3, "R4", "8"},
+			{4, "R4", "12"},
+			{5, "R4", "14"},
+		},
+	},
+	{
+		.descr = "mul",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_3, 7),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 2),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{0, "R1", "ctx()"},
+			{0, "R10", "fp0"},
+			{0, "R3", "7"},
+			{1, "R3", "7"},
+			{2, "R3", "14"},
+			{3, "R3", "56"},
+		},
+	},
+
+	/* Tests using unknown values */
+#define PREP_PKT_POINTERS \
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, \
+		    offsetof(struct __sk_buff, data)), \
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, \
+		    offsetof(struct __sk_buff, data_end))
+
+#define LOAD_UNKNOWN(DST_REG) \
+	PREP_PKT_POINTERS, \
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), \
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), \
+	BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 1), \
+	BPF_EXIT_INSN(), \
+	BPF_LDX_MEM(BPF_B, DST_REG, BPF_REG_2, 0)
+
+	{
+		.descr = "unknown shift",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_3),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_3, 1),
+			LOAD_UNKNOWN(BPF_REG_4),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 5),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 1),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{6, "R0", "pkt(off=8,r=8)"},
+			{6, "R3", "var_off=(0x0; 0xff)"},
+			{7, "R3", "var_off=(0x0; 0x1fe)"},
+			{8, "R3", "var_off=(0x0; 0x3fc)"},
+			{9, "R3", "var_off=(0x0; 0x7f8)"},
+			{10, "R3", "var_off=(0x0; 0xff0)"},
+			{12, "R3", "pkt_end()"},
+			{17, "R4", "var_off=(0x0; 0xff)"},
+			{18, "R4", "var_off=(0x0; 0x1fe0)"},
+			{19, "R4", "var_off=(0x0; 0xff0)"},
+			{20, "R4", "var_off=(0x0; 0x7f8)"},
+			{21, "R4", "var_off=(0x0; 0x3fc)"},
+			{22, "R4", "var_off=(0x0; 0x1fe)"},
+		},
+	},
+	{
+		.descr = "unknown mul",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_3),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 1),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 4),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_3),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 8),
+			BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{6, "R3", "var_off=(0x0; 0xff)"},
+			{7, "R4", "var_off=(0x0; 0xff)"},
+			{8, "R4", "var_off=(0x0; 0xff)"},
+			{9, "R4", "var_off=(0x0; 0xff)"},
+			{10, "R4", "var_off=(0x0; 0x1fe)"},
+			{11, "R4", "var_off=(0x0; 0xff)"},
+			{12, "R4", "var_off=(0x0; 0x3fc)"},
+			{13, "R4", "var_off=(0x0; 0xff)"},
+			{14, "R4", "var_off=(0x0; 0x7f8)"},
+			{15, "R4", "var_off=(0x0; 0xff0)"},
+		},
+	},
+	{
+		.descr = "packet const offset",
+		.insns = {
+			PREP_PKT_POINTERS,
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+
+			/* Skip over ethernet header.  */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 0),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 1),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 2),
+			BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_5, 3),
+			BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 0),
+			BPF_LDX_MEM(BPF_H, BPF_REG_4, BPF_REG_5, 2),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			{2, "R5", "pkt(r=0)"},
+			{4, "R5", "pkt(off=14,r=0)"},
+			{5, "R4", "pkt(off=14,r=0)"},
+			{9, "R2", "pkt(r=18)"},
+			{10, "R5", "pkt(off=14,r=18)"},
+			{10, "R4", "var_off=(0x0; 0xff)"},
+			{13, "R4", "var_off=(0x0; 0xffff)"},
+			{14, "R4", "var_off=(0x0; 0xffff)"},
+		},
+	},
+	{
+		.descr = "packet variable offset",
+		.insns = {
+			LOAD_UNKNOWN(BPF_REG_6),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+
+			/* First, add a constant to the R5 packet pointer,
+			 * then a variable with a known alignment.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			/* Now, test in the other direction.  Adding first
+			 * the variable offset to R5, then the constant.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			/* Test multiple accumulations of unknown values
+			 * into a packet pointer.
+			 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 4),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_5, 0),
+
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			/* Calculated offset in R6 has unknown value, but known
+			 * alignment of 4.
+			 */
+			{6, "R2", "pkt(r=8)"},
+			{7, "R6", "var_off=(0x0; 0x3fc)"},
+			/* Offset is added to packet pointer R5, resulting in
+			 * known fixed offset, and variable offset from R6.
+			 */
+			{11, "R5", "pkt(id=1,off=14,"},
+			/* At the time the word size load is performed from R5,
+			 * it's total offset is NET_IP_ALIGN + reg->off (0) +
+			 * reg->aux_off (14) which is 16.  Then the variable
+			 * offset is considered using reg->aux_off_align which
+			 * is 4 and meets the load's requirements.
+			 */
+			{15, "R4", "var_off=(0x0; 0x3fc)"},
+			{15, "R5", "var_off=(0x0; 0x3fc)"},
+			/* Variable offset is added to R5 packet pointer,
+			 * resulting in auxiliary alignment of 4. To avoid BPF
+			 * verifier's precision backtracking logging
+			 * interfering we also have a no-op R4 = R5
+			 * instruction to validate R5 state. We also check
+			 * that R4 is what it should be in such case.
+			 */
+			{18, "R4", "var_off=(0x0; 0x3fc)"},
+			{18, "R5", "var_off=(0x0; 0x3fc)"},
+			/* Constant offset is added to R5, resulting in
+			 * reg->off of 14.
+			 */
+			{19, "R5", "pkt(id=2,off=14,"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off
+			 * (14) which is 16.  Then the variable offset is 4-byte
+			 * aligned, so the total offset is 4-byte aligned and
+			 * meets the load's requirements.
+			 */
+			{24, "R4", "var_off=(0x0; 0x3fc)"},
+			{24, "R5", "var_off=(0x0; 0x3fc)"},
+			/* Constant offset is added to R5 packet pointer,
+			 * resulting in reg->off value of 14.
+			 */
+			{26, "R5", "pkt(off=14,r=8)"},
+			/* Variable offset is added to R5, resulting in a
+			 * variable offset of (4n). See comment for insn #18
+			 * for R4 = R5 trick.
+			 */
+			{28, "R4", "var_off=(0x0; 0x3fc)"},
+			{28, "R5", "var_off=(0x0; 0x3fc)"},
+			/* Constant is added to R5 again, setting reg->off to 18. */
+			{29, "R5", "pkt(id=3,off=18,"},
+			/* And once more we add a variable; resulting var_off
+			 * is still (4n), fixed offset is not changed.
+			 * Also, we create a new reg->id.
+			 */
+			{31, "R4", "var_off=(0x0; 0x7fc)"},
+			{31, "R5", "var_off=(0x0; 0x7fc)"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off (18)
+			 * which is 20.  Then the variable offset is (4n), so
+			 * the total offset is 4-byte aligned and meets the
+			 * load's requirements.
+			 */
+			{35, "R4", "var_off=(0x0; 0x7fc)"},
+			{35, "R5", "var_off=(0x0; 0x7fc)"},
+		},
+	},
+	{
+		.descr = "packet variable offset 2",
+		.insns = {
+			/* Create an unknown offset, (4n+2)-aligned */
+			LOAD_UNKNOWN(BPF_REG_6),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 14),
+			/* Add it to the packet pointer */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			/* Check bounds and perform a read */
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_5, 0),
+			/* Make a (4n) offset from the value we just read */
+			BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 0xff),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+			/* Add it to the packet pointer */
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			/* Check bounds and perform a read */
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_5, 0),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			/* Calculated offset in R6 has unknown value, but known
+			 * alignment of 4.
+			 */
+			{6, "R2", "pkt(r=8)"},
+			{7, "R6", "var_off=(0x0; 0x3fc)"},
+			/* Adding 14 makes R6 be (4n+2) */
+			{8, "R6", "var_off=(0x2; 0x7fc)"},
+			/* Packet pointer has (4n+2) offset */
+			{11, "R5", "var_off=(0x2; 0x7fc)"},
+			{12, "R4", "var_off=(0x2; 0x7fc)"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off (0)
+			 * which is 2.  Then the variable offset is (4n+2), so
+			 * the total offset is 4-byte aligned and meets the
+			 * load's requirements.
+			 */
+			{15, "R5", "var_off=(0x2; 0x7fc)"},
+			/* Newly read value in R6 was shifted left by 2, so has
+			 * known alignment of 4.
+			 */
+			{17, "R6", "var_off=(0x0; 0x3fc)"},
+			/* Added (4n) to packet pointer's (4n+2) var_off, giving
+			 * another (4n+2).
+			 */
+			{19, "R5", "var_off=(0x2; 0xffc)"},
+			{20, "R4", "var_off=(0x2; 0xffc)"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off (0)
+			 * which is 2.  Then the variable offset is (4n+2), so
+			 * the total offset is 4-byte aligned and meets the
+			 * load's requirements.
+			 */
+			{23, "R5", "var_off=(0x2; 0xffc)"},
+		},
+	},
+	{
+		.descr = "dubious pointer arithmetic",
+		.insns = {
+			PREP_PKT_POINTERS,
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* (ptr - ptr) << 2 */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_3),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_5, 2),
+			/* We have a (4n) value.  Let's make a packet offset
+			 * out of it.  First add 14, to make it a (4n+2)
+			 */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14),
+			/* Then make sure it's nonnegative */
+			BPF_JMP_IMM(BPF_JSGE, BPF_REG_5, 0, 1),
+			BPF_EXIT_INSN(),
+			/* Add it to packet pointer */
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5),
+			/* Check bounds and perform a read */
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_6, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.result = REJECT,
+		.matches = {
+			{3, "R5", "pkt_end()"},
+			/* (ptr - ptr) << 2 == unknown, (4n) */
+			{5, "R5", "var_off=(0x0; 0xfffffffffffffffc)"},
+			/* (4n) + 14 == (4n+2).  We blow our bounds, because
+			 * the add could overflow.
+			 */
+			{6, "R5", "var_off=(0x2; 0xfffffffffffffffc)"},
+			/* Checked s>=0 */
+			{9, "R5", "var_off=(0x2; 0x7ffffffffffffffc)"},
+			/* packet pointer + nonnegative (4n+2) */
+			{11, "R6", "var_off=(0x2; 0x7ffffffffffffffc)"},
+			{12, "R4", "var_off=(0x2; 0x7ffffffffffffffc)"},
+			/* NET_IP_ALIGN + (4n+2) == (4n), alignment is fine.
+			 * We checked the bounds, but it might have been able
+			 * to overflow if the packet pointer started in the
+			 * upper half of the address space.
+			 * So we did not get a 'range' on R6, and the access
+			 * attempt will fail.
+			 */
+			{15, "R6", "var_off=(0x2; 0x7ffffffffffffffc)"},
+		}
+	},
+	{
+		.descr = "variable subtraction",
+		.insns = {
+			/* Create an unknown offset, (4n+2)-aligned */
+			LOAD_UNKNOWN(BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 14),
+			/* Create another unknown, (4n)-aligned, and subtract
+			 * it from the first one
+			 */
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 2),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_6, BPF_REG_7),
+			/* Bounds-check the result */
+			BPF_JMP_IMM(BPF_JSGE, BPF_REG_6, 0, 1),
+			BPF_EXIT_INSN(),
+			/* Add it to the packet pointer */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_6),
+			/* Check bounds and perform a read */
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_5, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			/* Calculated offset in R6 has unknown value, but known
+			 * alignment of 4.
+			 */
+			{6, "R2", "pkt(r=8)"},
+			{8, "R6", "var_off=(0x0; 0x3fc)"},
+			/* Adding 14 makes R6 be (4n+2) */
+			{9, "R6", "var_off=(0x2; 0x7fc)"},
+			/* New unknown value in R7 is (4n) */
+			{10, "R7", "var_off=(0x0; 0x3fc)"},
+			/* Subtracting it from R6 blows our unsigned bounds */
+			{11, "R6", "var_off=(0x2; 0xfffffffffffffffc)"},
+			/* Checked s>= 0 */
+			{14, "R6", "var_off=(0x2; 0x7fc)"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off (0)
+			 * which is 2.  Then the variable offset is (4n+2), so
+			 * the total offset is 4-byte aligned and meets the
+			 * load's requirements.
+			 */
+			{20, "R5", "var_off=(0x2; 0x7fc)"},
+		},
+	},
+	{
+		.descr = "pointer variable subtraction",
+		.insns = {
+			/* Create an unknown offset, (4n+2)-aligned and bounded
+			 * to [14,74]
+			 */
+			LOAD_UNKNOWN(BPF_REG_6),
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_AND, BPF_REG_6, 0xf),
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 14),
+			/* Subtract it from the packet pointer */
+			BPF_MOV64_REG(BPF_REG_5, BPF_REG_2),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_5, BPF_REG_6),
+			/* Create another unknown, (4n)-aligned and >= 74.
+			 * That in fact means >= 76, since 74 % 4 == 2
+			 */
+			BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 76),
+			/* Add it to the packet pointer */
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_5, BPF_REG_7),
+			/* Check bounds and perform a read */
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_5),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_4, 1),
+			BPF_EXIT_INSN(),
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_5, 0),
+			BPF_EXIT_INSN(),
+		},
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+		.matches = {
+			/* Calculated offset in R6 has unknown value, but known
+			 * alignment of 4.
+			 */
+			{6, "R2", "pkt(r=8)"},
+			{9, "R6", "var_off=(0x0; 0x3c)"},
+			/* Adding 14 makes R6 be (4n+2) */
+			{10, "R6", "var_off=(0x2; 0x7c)"},
+			/* Subtracting from packet pointer overflows ubounds */
+			{13, "R5", "var_off=(0xffffffffffffff82; 0x7c)"},
+			/* New unknown value in R7 is (4n), >= 76 */
+			{14, "R7", "var_off=(0x0; 0x7fc)"},
+			/* Adding it to packet pointer gives nice bounds again */
+			{16, "R5", "var_off=(0x2; 0x7fc)"},
+			/* At the time the word size load is performed from R5,
+			 * its total fixed offset is NET_IP_ALIGN + reg->off (0)
+			 * which is 2.  Then the variable offset is (4n+2), so
+			 * the total offset is 4-byte aligned and meets the
+			 * load's requirements.
+			 */
+			{20, "R5", "var_off=(0x2; 0x7fc)"},
+		},
+	},
+};
+
+static int probe_filter_length(const struct bpf_insn *fp)
+{
+	int len;
+
+	for (len = MAX_INSNS - 1; len > 0; --len)
+		if (fp[len].code != 0 || fp[len].imm != 0)
+			break;
+	return len + 1;
+}
+
+static char bpf_vlog[32768];
+
+static int do_test_single(struct bpf_align_test *test)
+{
+	struct bpf_insn *prog = test->insns;
+	int prog_type = test->prog_type;
+	char bpf_vlog_copy[32768];
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.prog_flags = BPF_F_STRICT_ALIGNMENT,
+		.log_buf = bpf_vlog,
+		.log_size = sizeof(bpf_vlog),
+		.log_level = 2,
+	);
+	const char *main_pass_start = "0: R1=ctx() R10=fp0";
+	const char *line_ptr;
+	int cur_line = -1;
+	int prog_len, i;
+	char *start;
+	int fd_prog;
+	int ret;
+
+	prog_len = probe_filter_length(prog);
+	fd_prog = bpf_prog_load(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, NULL, "GPL",
+				prog, prog_len, &opts);
+	if (fd_prog < 0 && test->result != REJECT) {
+		printf("Failed to load program.\n");
+		printf("%s", bpf_vlog);
+		ret = 1;
+	} else if (fd_prog >= 0 && test->result == REJECT) {
+		printf("Unexpected success to load!\n");
+		printf("%s", bpf_vlog);
+		ret = 1;
+		close(fd_prog);
+	} else {
+		ret = 0;
+		/* We make a local copy so that we can strtok() it */
+		strncpy(bpf_vlog_copy, bpf_vlog, sizeof(bpf_vlog_copy));
+		start = strstr(bpf_vlog_copy, main_pass_start);
+		if (!start) {
+			ret = 1;
+			printf("Can't find initial line '%s'\n", main_pass_start);
+			goto out;
+		}
+		line_ptr = strtok(start, "\n");
+		for (i = 0; i < MAX_MATCHES; i++) {
+			struct bpf_reg_match m = test->matches[i];
+			const char *p;
+			int tmp;
+
+			if (!m.match)
+				break;
+			while (line_ptr) {
+				cur_line = -1;
+				sscanf(line_ptr, "%u: ", &cur_line);
+				if (cur_line == -1)
+					sscanf(line_ptr, "from %u to %u: ", &tmp, &cur_line);
+				if (cur_line == m.line)
+					break;
+				line_ptr = strtok(NULL, "\n");
+			}
+			if (!line_ptr) {
+				printf("Failed to find line %u for match: %s=%s\n",
+				       m.line, m.reg, m.match);
+				ret = 1;
+				printf("%s", bpf_vlog);
+				break;
+			}
+			/* Check the next line as well in case the previous line
+			 * did not have a corresponding bpf insn. Example:
+			 * func#0 @0
+			 * 0: R1=ctx() R10=fp0
+			 * 0: (b7) r3 = 2                 ; R3_w=2
+			 *
+			 * Sometimes it's actually two lines below, e.g. when
+			 * searching for "6: R3_w=scalar(umax=255,var_off=(0x0; 0xff))":
+			 *   from 4 to 6: R0_w=pkt(off=8,r=8) R1=ctx() R2_w=pkt(r=8) R3_w=pkt_end() R10=fp0
+			 *   6: R0_w=pkt(off=8,r=8) R1=ctx() R2_w=pkt(r=8) R3_w=pkt_end() R10=fp0
+			 *   6: (71) r3 = *(u8 *)(r2 +0)           ; R2_w=pkt(r=8) R3_w=scalar(umax=255,var_off=(0x0; 0xff))
+			 */
+			while (!(p = strstr(line_ptr, m.reg)) || !strstr(p, m.match)) {
+				cur_line = -1;
+				line_ptr = strtok(NULL, "\n");
+				sscanf(line_ptr ?: "", "%u: ", &cur_line);
+				if (!line_ptr || cur_line != m.line)
+					break;
+			}
+			if (cur_line != m.line || !line_ptr || !(p = strstr(line_ptr, m.reg)) || !strstr(p, m.match)) {
+				printf("Failed to find match %u: %s=%s\n", m.line, m.reg, m.match);
+				ret = 1;
+				printf("%s", bpf_vlog);
+				break;
+			}
+		}
+out:
+		if (fd_prog >= 0)
+			close(fd_prog);
+	}
+	return ret;
+}
+
+void test_align(void)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		struct bpf_align_test *test = &tests[i];
+
+		if (!test__start_subtest(test->descr))
+			continue;
+
+		ASSERT_OK(do_test_single(test), test->descr);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arena_atomics.c b/tools/testing/selftests/bpf/prog_tests/arena_atomics.c
new file mode 100644
index 000000000000..d98577a6babc
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arena_atomics.c
@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "arena_atomics.skel.h"
+
+static void test_add(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.add);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->add64_value, 3, "add64_value");
+	ASSERT_EQ(skel->arena->add64_result, 1, "add64_result");
+
+	ASSERT_EQ(skel->arena->add32_value, 3, "add32_value");
+	ASSERT_EQ(skel->arena->add32_result, 1, "add32_result");
+
+	ASSERT_EQ(skel->arena->add_stack_value_copy, 3, "add_stack_value");
+	ASSERT_EQ(skel->arena->add_stack_result, 1, "add_stack_result");
+
+	ASSERT_EQ(skel->arena->add_noreturn_value, 3, "add_noreturn_value");
+}
+
+static void test_sub(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.sub);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->sub64_value, -1, "sub64_value");
+	ASSERT_EQ(skel->arena->sub64_result, 1, "sub64_result");
+
+	ASSERT_EQ(skel->arena->sub32_value, -1, "sub32_value");
+	ASSERT_EQ(skel->arena->sub32_result, 1, "sub32_result");
+
+	ASSERT_EQ(skel->arena->sub_stack_value_copy, -1, "sub_stack_value");
+	ASSERT_EQ(skel->arena->sub_stack_result, 1, "sub_stack_result");
+
+	ASSERT_EQ(skel->arena->sub_noreturn_value, -1, "sub_noreturn_value");
+}
+
+static void test_and(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.and);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->and64_value, 0x010ull << 32, "and64_value");
+	ASSERT_EQ(skel->arena->and32_value, 0x010, "and32_value");
+}
+
+static void test_or(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.or);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->or64_value, 0x111ull << 32, "or64_value");
+	ASSERT_EQ(skel->arena->or32_value, 0x111, "or32_value");
+}
+
+static void test_xor(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.xor);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->xor64_value, 0x101ull << 32, "xor64_value");
+	ASSERT_EQ(skel->arena->xor32_value, 0x101, "xor32_value");
+}
+
+static void test_cmpxchg(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.cmpxchg);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->cmpxchg64_value, 2, "cmpxchg64_value");
+	ASSERT_EQ(skel->arena->cmpxchg64_result_fail, 1, "cmpxchg_result_fail");
+	ASSERT_EQ(skel->arena->cmpxchg64_result_succeed, 1, "cmpxchg_result_succeed");
+
+	ASSERT_EQ(skel->arena->cmpxchg32_value, 2, "lcmpxchg32_value");
+	ASSERT_EQ(skel->arena->cmpxchg32_result_fail, 1, "cmpxchg_result_fail");
+	ASSERT_EQ(skel->arena->cmpxchg32_result_succeed, 1, "cmpxchg_result_succeed");
+}
+
+static void test_xchg(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.xchg);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->xchg64_value, 2, "xchg64_value");
+	ASSERT_EQ(skel->arena->xchg64_result, 1, "xchg64_result");
+
+	ASSERT_EQ(skel->arena->xchg32_value, 2, "xchg32_value");
+	ASSERT_EQ(skel->arena->xchg32_result, 1, "xchg32_result");
+}
+
+static void test_uaf(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.uaf);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->uaf_recovery_fails, 0, "uaf_recovery_fails");
+}
+
+static void test_load_acquire(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	if (skel->data->skip_lacq_srel_tests) {
+		printf("%s:SKIP: ENABLE_ATOMICS_TESTS not defined, Clang doesn't support addr_space_cast, and/or JIT doesn't support load-acquire\n",
+		       __func__);
+		test__skip();
+		return;
+	}
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.load_acquire);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->load_acquire8_result, 0x12,
+		  "load_acquire8_result");
+	ASSERT_EQ(skel->arena->load_acquire16_result, 0x1234,
+		  "load_acquire16_result");
+	ASSERT_EQ(skel->arena->load_acquire32_result, 0x12345678,
+		  "load_acquire32_result");
+	ASSERT_EQ(skel->arena->load_acquire64_result, 0x1234567890abcdef,
+		  "load_acquire64_result");
+}
+
+static void test_store_release(struct arena_atomics *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	if (skel->data->skip_lacq_srel_tests) {
+		printf("%s:SKIP: ENABLE_ATOMICS_TESTS not defined, Clang doesn't support addr_space_cast, and/or JIT doesn't support store-release\n",
+		       __func__);
+		test__skip();
+		return;
+	}
+
+	/* No need to attach it, just run it directly */
+	prog_fd = bpf_program__fd(skel->progs.store_release);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->arena->store_release8_result, 0x12,
+		  "store_release8_result");
+	ASSERT_EQ(skel->arena->store_release16_result, 0x1234,
+		  "store_release16_result");
+	ASSERT_EQ(skel->arena->store_release32_result, 0x12345678,
+		  "store_release32_result");
+	ASSERT_EQ(skel->arena->store_release64_result, 0x1234567890abcdef,
+		  "store_release64_result");
+}
+
+void test_arena_atomics(void)
+{
+	struct arena_atomics *skel;
+	int err;
+
+	skel = arena_atomics__open();
+	if (!ASSERT_OK_PTR(skel, "arena atomics skeleton open"))
+		return;
+
+	if (skel->data->skip_all_tests) {
+		printf("%s:SKIP:no ENABLE_ATOMICS_TESTS or no addr_space_cast support in clang",
+		       __func__);
+		test__skip();
+		goto cleanup;
+	}
+	err = arena_atomics__load(skel);
+	if (!ASSERT_OK(err, "arena atomics skeleton load"))
+		return;
+	skel->bss->pid = getpid();
+
+	if (test__start_subtest("add"))
+		test_add(skel);
+	if (test__start_subtest("sub"))
+		test_sub(skel);
+	if (test__start_subtest("and"))
+		test_and(skel);
+	if (test__start_subtest("or"))
+		test_or(skel);
+	if (test__start_subtest("xor"))
+		test_xor(skel);
+	if (test__start_subtest("cmpxchg"))
+		test_cmpxchg(skel);
+	if (test__start_subtest("xchg"))
+		test_xchg(skel);
+	if (test__start_subtest("uaf"))
+		test_uaf(skel);
+	if (test__start_subtest("load_acquire"))
+		test_load_acquire(skel);
+	if (test__start_subtest("store_release"))
+		test_store_release(skel);
+
+cleanup:
+	arena_atomics__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arena_htab.c b/tools/testing/selftests/bpf/prog_tests/arena_htab.c
new file mode 100644
index 000000000000..d69fd2465f53
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arena_htab.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <sys/mman.h>
+#include <network_helpers.h>
+#include <sys/user.h>
+#ifndef PAGE_SIZE /* on some archs it comes in sys/user.h */
+#include <unistd.h>
+#define PAGE_SIZE getpagesize()
+#endif
+#include "arena_htab_asm.skel.h"
+#include "arena_htab.skel.h"
+
+#include "bpf_arena_htab.h"
+
+static void test_arena_htab_common(struct htab *htab)
+{
+	int i;
+
+	printf("htab %p buckets %p n_buckets %d\n", htab, htab->buckets, htab->n_buckets);
+	ASSERT_OK_PTR(htab->buckets, "htab->buckets shouldn't be NULL");
+	for (i = 0; htab->buckets && i < 16; i += 4) {
+		/*
+		 * Walk htab buckets and link lists since all pointers are correct,
+		 * though they were written by bpf program.
+		 */
+		int val = htab_lookup_elem(htab, i);
+
+		ASSERT_EQ(i, val, "key == value");
+	}
+}
+
+static void test_arena_htab_llvm(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct arena_htab *skel;
+	struct htab *htab;
+	size_t arena_sz;
+	void *area;
+	int ret;
+
+	skel = arena_htab__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "arena_htab__open_and_load"))
+		return;
+
+	area = bpf_map__initial_value(skel->maps.arena, &arena_sz);
+	/* fault-in a page with pgoff == 0 as sanity check */
+	*(volatile int *)area = 0x55aa;
+
+	/* bpf prog will allocate more pages */
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_htab_llvm), &opts);
+	ASSERT_OK(ret, "ret");
+	ASSERT_OK(opts.retval, "retval");
+	if (skel->bss->skip) {
+		printf("%s:SKIP:compiler doesn't support arena_cast\n", __func__);
+		test__skip();
+		goto out;
+	}
+	htab = skel->bss->htab_for_user;
+	test_arena_htab_common(htab);
+out:
+	arena_htab__destroy(skel);
+}
+
+static void test_arena_htab_asm(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct arena_htab_asm *skel;
+	struct htab *htab;
+	int ret;
+
+	skel = arena_htab_asm__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "arena_htab_asm__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_htab_asm), &opts);
+	ASSERT_OK(ret, "ret");
+	ASSERT_OK(opts.retval, "retval");
+	htab = skel->bss->htab_for_user;
+	test_arena_htab_common(htab);
+	arena_htab_asm__destroy(skel);
+}
+
+void test_arena_htab(void)
+{
+	if (test__start_subtest("arena_htab_llvm"))
+		test_arena_htab_llvm();
+	if (test__start_subtest("arena_htab_asm"))
+		test_arena_htab_asm();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arena_list.c b/tools/testing/selftests/bpf/prog_tests/arena_list.c
new file mode 100644
index 000000000000..d15867cddde0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arena_list.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <sys/mman.h>
+#include <network_helpers.h>
+#include <sys/user.h>
+#ifndef PAGE_SIZE /* on some archs it comes in sys/user.h */
+#include <unistd.h>
+#define PAGE_SIZE getpagesize()
+#endif
+
+#include "bpf_arena_list.h"
+#include "arena_list.skel.h"
+
+struct elem {
+	struct arena_list_node node;
+	__u64 value;
+};
+
+static int list_sum(struct arena_list_head *head)
+{
+	struct elem __arena *n;
+	int sum = 0;
+
+	list_for_each_entry(n, head, node)
+		sum += n->value;
+	return sum;
+}
+
+static void test_arena_list_add_del(int cnt)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct arena_list *skel;
+	int expected_sum = (u64)cnt * (cnt - 1) / 2;
+	int ret, sum;
+
+	skel = arena_list__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "arena_list__open_and_load"))
+		return;
+
+	skel->bss->cnt = cnt;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_list_add), &opts);
+	ASSERT_OK(ret, "ret_add");
+	ASSERT_OK(opts.retval, "retval");
+	if (skel->bss->skip) {
+		printf("%s:SKIP:compiler doesn't support arena_cast\n", __func__);
+		test__skip();
+		goto out;
+	}
+	sum = list_sum(skel->bss->list_head);
+	ASSERT_EQ(sum, expected_sum, "sum of elems");
+	ASSERT_EQ(skel->arena->arena_sum, expected_sum, "__arena sum of elems");
+	ASSERT_EQ(skel->arena->test_val, cnt + 1, "num of elems");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_list_del), &opts);
+	ASSERT_OK(ret, "ret_del");
+	sum = list_sum(skel->bss->list_head);
+	ASSERT_EQ(sum, 0, "sum of list elems after del");
+	ASSERT_EQ(skel->bss->list_sum, expected_sum, "sum of list elems computed by prog");
+	ASSERT_EQ(skel->arena->arena_sum, expected_sum, "__arena sum of elems");
+out:
+	arena_list__destroy(skel);
+}
+
+void test_arena_list(void)
+{
+	if (test__start_subtest("arena_list_1"))
+		test_arena_list_add_del(1);
+	if (test__start_subtest("arena_list_1000"))
+		test_arena_list_add_del(1000);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arena_spin_lock.c b/tools/testing/selftests/bpf/prog_tests/arena_spin_lock.c
new file mode 100644
index 000000000000..693fd86fbde6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arena_spin_lock.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <sys/sysinfo.h>
+
+struct __qspinlock { int val; };
+typedef struct __qspinlock arena_spinlock_t;
+
+struct arena_qnode {
+	unsigned long next;
+	int count;
+	int locked;
+};
+
+#include "arena_spin_lock.skel.h"
+
+static long cpu;
+static int repeat;
+
+pthread_barrier_t barrier;
+
+static void *spin_lock_thread(void *arg)
+{
+	int err, prog_fd = *(u32 *)arg;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = repeat,
+	);
+	cpu_set_t cpuset;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(__sync_fetch_and_add(&cpu, 1), &cpuset);
+	ASSERT_OK(pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset), "cpu affinity");
+
+	err = pthread_barrier_wait(&barrier);
+	if (err != PTHREAD_BARRIER_SERIAL_THREAD && err != 0)
+		ASSERT_FALSE(true, "pthread_barrier");
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run err");
+
+	if (topts.retval == -EOPNOTSUPP)
+		goto end;
+
+	ASSERT_EQ((int)topts.retval, 0, "test_run retval");
+
+end:
+	pthread_exit(arg);
+}
+
+static void test_arena_spin_lock_size(int size)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct arena_spin_lock *skel;
+	pthread_t thread_id[16];
+	int prog_fd, i, err;
+	int nthreads;
+	void *ret;
+
+	nthreads = MIN(get_nprocs(), ARRAY_SIZE(thread_id));
+	if (nthreads < 2) {
+		test__skip();
+		return;
+	}
+
+	skel = arena_spin_lock__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "arena_spin_lock__open_and_load"))
+		return;
+
+	if (skel->data->test_skip == 2) {
+		test__skip();
+		goto end;
+	}
+	skel->bss->cs_count = size;
+	skel->bss->limit = repeat * nthreads;
+
+	ASSERT_OK(pthread_barrier_init(&barrier, NULL, nthreads), "barrier init");
+
+	prog_fd = bpf_program__fd(skel->progs.prog);
+	for (i = 0; i < nthreads; i++) {
+		err = pthread_create(&thread_id[i], NULL, &spin_lock_thread, &prog_fd);
+		if (!ASSERT_OK(err, "pthread_create"))
+			goto end_barrier;
+	}
+
+	for (i = 0; i < nthreads; i++) {
+		if (!ASSERT_OK(pthread_join(thread_id[i], &ret), "pthread_join"))
+			goto end_barrier;
+		if (!ASSERT_EQ(ret, &prog_fd, "ret == prog_fd"))
+			goto end_barrier;
+	}
+
+	if (skel->data->test_skip == 3) {
+		printf("%s:SKIP: CONFIG_NR_CPUS exceed the maximum supported by arena spinlock\n",
+		       __func__);
+		test__skip();
+		goto end_barrier;
+	}
+
+	ASSERT_EQ(skel->bss->counter, repeat * nthreads, "check counter value");
+
+end_barrier:
+	pthread_barrier_destroy(&barrier);
+end:
+	arena_spin_lock__destroy(skel);
+	return;
+}
+
+void test_arena_spin_lock(void)
+{
+	repeat = 1000;
+	if (test__start_subtest("arena_spin_lock_1"))
+		test_arena_spin_lock_size(1);
+	cpu = 0;
+	if (test__start_subtest("arena_spin_lock_1000"))
+		test_arena_spin_lock_size(1000);
+	cpu = 0;
+	repeat = 100;
+	if (test__start_subtest("arena_spin_lock_50000"))
+		test_arena_spin_lock_size(50000);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arena_strsearch.c b/tools/testing/selftests/bpf/prog_tests/arena_strsearch.c
new file mode 100644
index 000000000000..f81a0c066505
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arena_strsearch.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "arena_strsearch.skel.h"
+
+static void test_arena_str(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct arena_strsearch *skel;
+	int ret;
+
+	skel = arena_strsearch__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "arena_strsearch__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.arena_strsearch), &opts);
+	ASSERT_OK(ret, "ret_add");
+	ASSERT_OK(opts.retval, "retval");
+	if (skel->bss->skip) {
+		printf("%s:SKIP:compiler doesn't support arena_cast\n", __func__);
+		test__skip();
+	}
+	arena_strsearch__destroy(skel);
+}
+
+void test_arena_strsearch(void)
+{
+	if (test__start_subtest("arena_strsearch"))
+		test_arena_str();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/arg_parsing.c b/tools/testing/selftests/bpf/prog_tests/arg_parsing.c
new file mode 100644
index 000000000000..e27d66b75fb1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/arg_parsing.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+#include "test_progs.h"
+#include "testing_helpers.h"
+
+static void init_test_filter_set(struct test_filter_set *set)
+{
+	set->cnt = 0;
+	set->tests = NULL;
+}
+
+static void free_test_filter_set(struct test_filter_set *set)
+{
+	int i, j;
+
+	for (i = 0; i < set->cnt; i++) {
+		for (j = 0; j < set->tests[i].subtest_cnt; j++)
+			free((void *)set->tests[i].subtests[j]);
+		free(set->tests[i].subtests);
+		free(set->tests[i].name);
+	}
+
+	free(set->tests);
+	init_test_filter_set(set);
+}
+
+static void test_parse_test_list(void)
+{
+	struct test_filter_set set;
+
+	init_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("arg_parsing", &set, true), "parsing");
+	if (!ASSERT_EQ(set.cnt, 1, "test filters count"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	ASSERT_EQ(set.tests[0].subtest_cnt, 0, "subtest filters count");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].name), "subtest name");
+	free_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("arg_parsing,bpf_cookie", &set, true),
+		  "parsing");
+	if (!ASSERT_EQ(set.cnt, 2, "count of test filters"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	ASSERT_EQ(set.tests[0].subtest_cnt, 0, "subtest filters count");
+	ASSERT_EQ(set.tests[1].subtest_cnt, 0, "subtest filters count");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].name), "test name");
+	ASSERT_OK(strcmp("bpf_cookie", set.tests[1].name), "test name");
+	free_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("arg_parsing/arg_parsing,bpf_cookie",
+				  &set,
+				  true),
+		  "parsing");
+	if (!ASSERT_EQ(set.cnt, 2, "count of test filters"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	if (!ASSERT_EQ(set.tests[0].subtest_cnt, 1, "subtest filters count"))
+		goto error;
+	ASSERT_EQ(set.tests[1].subtest_cnt, 0, "subtest filters count");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].name), "test name");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].subtests[0]),
+		  "subtest name");
+	ASSERT_OK(strcmp("bpf_cookie", set.tests[1].name), "test name");
+	free_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("arg_parsing/arg_parsing", &set, true),
+		  "parsing");
+	ASSERT_OK(parse_test_list("bpf_cookie", &set, true), "parsing");
+	ASSERT_OK(parse_test_list("send_signal", &set, true), "parsing");
+	if (!ASSERT_EQ(set.cnt, 3, "count of test filters"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	if (!ASSERT_EQ(set.tests[0].subtest_cnt, 1, "subtest filters count"))
+		goto error;
+	ASSERT_EQ(set.tests[1].subtest_cnt, 0, "subtest filters count");
+	ASSERT_EQ(set.tests[2].subtest_cnt, 0, "subtest filters count");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].name), "test name");
+	ASSERT_OK(strcmp("arg_parsing", set.tests[0].subtests[0]),
+		  "subtest name");
+	ASSERT_OK(strcmp("bpf_cookie", set.tests[1].name), "test name");
+	ASSERT_OK(strcmp("send_signal", set.tests[2].name), "test name");
+	free_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("bpf_cookie/trace", &set, false), "parsing");
+	if (!ASSERT_EQ(set.cnt, 1, "count of test filters"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	if (!ASSERT_EQ(set.tests[0].subtest_cnt, 1, "subtest filters count"))
+		goto error;
+	ASSERT_OK(strcmp("*bpf_cookie*", set.tests[0].name), "test name");
+	ASSERT_OK(strcmp("*trace*", set.tests[0].subtests[0]), "subtest name");
+	free_test_filter_set(&set);
+
+	ASSERT_OK(parse_test_list("t/subtest1,t/subtest2", &set, true),
+		  "parsing");
+	if (!ASSERT_EQ(set.cnt, 1, "count of test filters"))
+		goto error;
+	if (!ASSERT_OK_PTR(set.tests, "test filters initialized"))
+		goto error;
+	if (!ASSERT_EQ(set.tests[0].subtest_cnt, 2, "subtest filters count"))
+		goto error;
+	ASSERT_OK(strcmp("t", set.tests[0].name), "test name");
+	ASSERT_OK(strcmp("subtest1", set.tests[0].subtests[0]), "subtest name");
+	ASSERT_OK(strcmp("subtest2", set.tests[0].subtests[1]), "subtest name");
+error:
+	free_test_filter_set(&set);
+}
+
+static void test_parse_test_list_file(void)
+{
+	struct test_filter_set set;
+	char tmpfile[80];
+	FILE *fp;
+	int fd;
+
+	snprintf(tmpfile, sizeof(tmpfile), "/tmp/bpf_arg_parsing_test.XXXXXX");
+	fd = mkstemp(tmpfile);
+	if (!ASSERT_GE(fd, 0, "create tmp"))
+		return;
+
+	fp = fdopen(fd, "w");
+	if (!ASSERT_NEQ(fp, NULL, "fdopen tmp")) {
+		close(fd);
+		goto out_remove;
+	}
+
+	fprintf(fp, "# comment\n");
+	fprintf(fp, "  test_with_spaces    \n");
+	fprintf(fp, "testA/subtest    # comment\n");
+	fprintf(fp, "testB#comment with no space\n");
+	fprintf(fp, "testB # duplicate\n");
+	fprintf(fp, "testA/subtest # subtest duplicate\n");
+	fprintf(fp, "testA/subtest2\n");
+	fprintf(fp, "testC_no_eof_newline");
+	fflush(fp);
+
+	if (!ASSERT_OK(ferror(fp), "prepare tmp"))
+		goto out_fclose;
+
+	if (!ASSERT_OK(fsync(fileno(fp)), "fsync tmp"))
+		goto out_fclose;
+
+	init_test_filter_set(&set);
+
+	if (!ASSERT_OK(parse_test_list_file(tmpfile, &set, true), "parse file"))
+		goto out_fclose;
+
+	if (!ASSERT_EQ(set.cnt, 4, "test  count"))
+		goto out_free_set;
+
+	ASSERT_OK(strcmp("test_with_spaces", set.tests[0].name), "test 0 name");
+	ASSERT_EQ(set.tests[0].subtest_cnt, 0, "test 0 subtest count");
+	ASSERT_OK(strcmp("testA", set.tests[1].name), "test 1 name");
+	ASSERT_EQ(set.tests[1].subtest_cnt, 2, "test 1 subtest count");
+	ASSERT_OK(strcmp("subtest", set.tests[1].subtests[0]), "test 1 subtest 0");
+	ASSERT_OK(strcmp("subtest2", set.tests[1].subtests[1]), "test 1 subtest 1");
+	ASSERT_OK(strcmp("testB", set.tests[2].name), "test 2 name");
+	ASSERT_OK(strcmp("testC_no_eof_newline", set.tests[3].name), "test 3 name");
+
+out_free_set:
+	free_test_filter_set(&set);
+out_fclose:
+	fclose(fp);
+out_remove:
+	remove(tmpfile);
+}
+
+void test_arg_parsing(void)
+{
+	if (test__start_subtest("test_parse_test_list"))
+		test_parse_test_list();
+	if (test__start_subtest("test_parse_test_list_file"))
+		test_parse_test_list_file();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/assign_reuse.c b/tools/testing/selftests/bpf/prog_tests/assign_reuse.c
new file mode 100644
index 000000000000..989ee4d9785b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/assign_reuse.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <uapi/linux/if_link.h>
+#include <test_progs.h>
+
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+
+#include "network_helpers.h"
+#include "test_assign_reuse.skel.h"
+
+#define NS_TEST "assign_reuse"
+#define LOOPBACK 1
+#define PORT 4443
+
+static int attach_reuseport(int sock_fd, int prog_fd)
+{
+	return setsockopt(sock_fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF,
+			  &prog_fd, sizeof(prog_fd));
+}
+
+static __u64 cookie(int fd)
+{
+	__u64 cookie = 0;
+	socklen_t cookie_len = sizeof(cookie);
+	int ret;
+
+	ret = getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len);
+	ASSERT_OK(ret, "cookie");
+	ASSERT_GT(cookie, 0, "cookie_invalid");
+
+	return cookie;
+}
+
+static int echo_test_udp(int fd_sv)
+{
+	struct sockaddr_storage addr = {};
+	socklen_t len = sizeof(addr);
+	char buff[1] = {};
+	int fd_cl = -1, ret;
+
+	fd_cl = connect_to_fd(fd_sv, 100);
+	ASSERT_GT(fd_cl, 0, "create_client");
+	ASSERT_EQ(getsockname(fd_cl, (void *)&addr, &len), 0, "getsockname");
+
+	ASSERT_EQ(send(fd_cl, buff, sizeof(buff), 0), 1, "send_client");
+
+	ret = recv(fd_sv, buff, sizeof(buff), 0);
+	if (ret < 0) {
+		close(fd_cl);
+		return errno;
+	}
+
+	ASSERT_EQ(ret, 1, "recv_server");
+	ASSERT_EQ(sendto(fd_sv, buff, sizeof(buff), 0, (void *)&addr, len), 1, "send_server");
+	ASSERT_EQ(recv(fd_cl, buff, sizeof(buff), 0), 1, "recv_client");
+	close(fd_cl);
+	return 0;
+}
+
+static int echo_test_tcp(int fd_sv)
+{
+	char buff[1] = {};
+	int fd_cl = -1, fd_sv_cl = -1;
+
+	fd_cl = connect_to_fd(fd_sv, 100);
+	if (fd_cl < 0)
+		return errno;
+
+	fd_sv_cl = accept(fd_sv, NULL, NULL);
+	ASSERT_GE(fd_sv_cl, 0, "accept_fd");
+
+	ASSERT_EQ(send(fd_cl, buff, sizeof(buff), 0), 1, "send_client");
+	ASSERT_EQ(recv(fd_sv_cl, buff, sizeof(buff), 0), 1, "recv_server");
+	ASSERT_EQ(send(fd_sv_cl, buff, sizeof(buff), 0), 1, "send_server");
+	ASSERT_EQ(recv(fd_cl, buff, sizeof(buff), 0), 1, "recv_client");
+	close(fd_sv_cl);
+	close(fd_cl);
+	return 0;
+}
+
+void run_assign_reuse(int family, int sotype, const char *ip, __u16 port)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, tc_hook,
+		.ifindex = LOOPBACK,
+		.attach_point = BPF_TC_INGRESS,
+	);
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, tc_opts,
+		.handle = 1,
+		.priority = 1,
+	);
+	bool hook_created = false, tc_attached = false;
+	int ret, fd_tc, fd_accept, fd_drop, fd_map;
+	int *fd_sv = NULL;
+	__u64 fd_val;
+	struct test_assign_reuse *skel;
+	const int zero = 0;
+
+	skel = test_assign_reuse__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	skel->rodata->dest_port = port;
+
+	ret = test_assign_reuse__load(skel);
+	if (!ASSERT_OK(ret, "skel_load"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->sk_cookie_seen, 0, "cookie_init");
+
+	fd_tc = bpf_program__fd(skel->progs.tc_main);
+	fd_accept = bpf_program__fd(skel->progs.reuse_accept);
+	fd_drop = bpf_program__fd(skel->progs.reuse_drop);
+	fd_map = bpf_map__fd(skel->maps.sk_map);
+
+	fd_sv = start_reuseport_server(family, sotype, ip, port, 100, 1);
+	if (!ASSERT_NEQ(fd_sv, NULL, "start_reuseport_server"))
+		goto cleanup;
+
+	ret = attach_reuseport(*fd_sv, fd_drop);
+	if (!ASSERT_OK(ret, "attach_reuseport"))
+		goto cleanup;
+
+	fd_val = *fd_sv;
+	ret = bpf_map_update_elem(fd_map, &zero, &fd_val, BPF_NOEXIST);
+	if (!ASSERT_OK(ret, "bpf_sk_map"))
+		goto cleanup;
+
+	ret = bpf_tc_hook_create(&tc_hook);
+	if (ret == 0)
+		hook_created = true;
+	ret = ret == -EEXIST ? 0 : ret;
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		goto cleanup;
+
+	tc_opts.prog_fd = fd_tc;
+	ret = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		goto cleanup;
+	tc_attached = true;
+
+	if (sotype == SOCK_STREAM)
+		ASSERT_EQ(echo_test_tcp(*fd_sv), ECONNREFUSED, "drop_tcp");
+	else
+		ASSERT_EQ(echo_test_udp(*fd_sv), EAGAIN, "drop_udp");
+	ASSERT_EQ(skel->bss->reuseport_executed, 1, "program executed once");
+
+	skel->bss->sk_cookie_seen = 0;
+	skel->bss->reuseport_executed = 0;
+	ASSERT_OK(attach_reuseport(*fd_sv, fd_accept), "attach_reuseport(accept)");
+
+	if (sotype == SOCK_STREAM)
+		ASSERT_EQ(echo_test_tcp(*fd_sv), 0, "echo_tcp");
+	else
+		ASSERT_EQ(echo_test_udp(*fd_sv), 0, "echo_udp");
+
+	ASSERT_EQ(skel->bss->sk_cookie_seen, cookie(*fd_sv),
+		  "cookie_mismatch");
+	ASSERT_EQ(skel->bss->reuseport_executed, 1, "program executed once");
+cleanup:
+	if (tc_attached) {
+		tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+		ret = bpf_tc_detach(&tc_hook, &tc_opts);
+		ASSERT_OK(ret, "bpf_tc_detach");
+	}
+	if (hook_created) {
+		tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&tc_hook);
+	}
+	test_assign_reuse__destroy(skel);
+	free_fds(fd_sv, 1);
+}
+
+void test_assign_reuse(void)
+{
+	struct nstoken *tok = NULL;
+
+	SYS(out, "ip netns add %s", NS_TEST);
+	SYS(cleanup, "ip -net %s link set dev lo up", NS_TEST);
+
+	tok = open_netns(NS_TEST);
+	if (!ASSERT_OK_PTR(tok, "netns token"))
+		return;
+
+	if (test__start_subtest("tcpv4"))
+		run_assign_reuse(AF_INET, SOCK_STREAM, "127.0.0.1", PORT);
+	if (test__start_subtest("tcpv6"))
+		run_assign_reuse(AF_INET6, SOCK_STREAM, "::1", PORT);
+	if (test__start_subtest("udpv4"))
+		run_assign_reuse(AF_INET, SOCK_DGRAM, "127.0.0.1", PORT);
+	if (test__start_subtest("udpv6"))
+		run_assign_reuse(AF_INET6, SOCK_DGRAM, "::1", PORT);
+
+cleanup:
+	close_netns(tok);
+	SYS_NOFAIL("ip netns delete %s", NS_TEST);
+out:
+	return;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/async_stack_depth.c b/tools/testing/selftests/bpf/prog_tests/async_stack_depth.c
new file mode 100644
index 000000000000..118abc29b236
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/async_stack_depth.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+#include "async_stack_depth.skel.h"
+
+void test_async_stack_depth(void)
+{
+	RUN_TESTS(async_stack_depth);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c b/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c
new file mode 100644
index 000000000000..69bd7853e8f1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/atomic_bounds.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "atomic_bounds.skel.h"
+
+void test_atomic_bounds(void)
+{
+	struct atomic_bounds *skel;
+	__u32 duration = 0;
+
+	skel = atomic_bounds__open_and_load();
+	if (CHECK(!skel, "skel_load", "couldn't load program\n"))
+		return;
+
+	atomic_bounds__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/atomics.c b/tools/testing/selftests/bpf/prog_tests/atomics.c
new file mode 100644
index 000000000000..92b5f378bfb8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/atomics.c
@@ -0,0 +1,204 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "atomics.lskel.h"
+
+static void test_add(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.add.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->add64_value, 3, "add64_value");
+	ASSERT_EQ(skel->bss->add64_result, 1, "add64_result");
+
+	ASSERT_EQ(skel->data->add32_value, 3, "add32_value");
+	ASSERT_EQ(skel->bss->add32_result, 1, "add32_result");
+
+	ASSERT_EQ(skel->bss->add_stack_value_copy, 3, "add_stack_value");
+	ASSERT_EQ(skel->bss->add_stack_result, 1, "add_stack_result");
+
+	ASSERT_EQ(skel->data->add_noreturn_value, 3, "add_noreturn_value");
+}
+
+static void test_sub(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.sub.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->sub64_value, -1, "sub64_value");
+	ASSERT_EQ(skel->bss->sub64_result, 1, "sub64_result");
+
+	ASSERT_EQ(skel->data->sub32_value, -1, "sub32_value");
+	ASSERT_EQ(skel->bss->sub32_result, 1, "sub32_result");
+
+	ASSERT_EQ(skel->bss->sub_stack_value_copy, -1, "sub_stack_value");
+	ASSERT_EQ(skel->bss->sub_stack_result, 1, "sub_stack_result");
+
+	ASSERT_EQ(skel->data->sub_noreturn_value, -1, "sub_noreturn_value");
+}
+
+static void test_and(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.and.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->and64_value, 0x010ull << 32, "and64_value");
+	ASSERT_EQ(skel->bss->and64_result, 0x110ull << 32, "and64_result");
+
+	ASSERT_EQ(skel->data->and32_value, 0x010, "and32_value");
+	ASSERT_EQ(skel->bss->and32_result, 0x110, "and32_result");
+
+	ASSERT_EQ(skel->data->and_noreturn_value, 0x010ull << 32, "and_noreturn_value");
+}
+
+static void test_or(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.or.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->or64_value, 0x111ull << 32, "or64_value");
+	ASSERT_EQ(skel->bss->or64_result, 0x110ull << 32, "or64_result");
+
+	ASSERT_EQ(skel->data->or32_value, 0x111, "or32_value");
+	ASSERT_EQ(skel->bss->or32_result, 0x110, "or32_result");
+
+	ASSERT_EQ(skel->data->or_noreturn_value, 0x111ull << 32, "or_noreturn_value");
+}
+
+static void test_xor(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.xor.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->xor64_value, 0x101ull << 32, "xor64_value");
+	ASSERT_EQ(skel->bss->xor64_result, 0x110ull << 32, "xor64_result");
+
+	ASSERT_EQ(skel->data->xor32_value, 0x101, "xor32_value");
+	ASSERT_EQ(skel->bss->xor32_result, 0x110, "xor32_result");
+
+	ASSERT_EQ(skel->data->xor_noreturn_value, 0x101ull << 32, "xor_nxoreturn_value");
+}
+
+static void test_cmpxchg(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.cmpxchg.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->cmpxchg64_value, 2, "cmpxchg64_value");
+	ASSERT_EQ(skel->bss->cmpxchg64_result_fail, 1, "cmpxchg_result_fail");
+	ASSERT_EQ(skel->bss->cmpxchg64_result_succeed, 1, "cmpxchg_result_succeed");
+
+	ASSERT_EQ(skel->data->cmpxchg32_value, 2, "lcmpxchg32_value");
+	ASSERT_EQ(skel->bss->cmpxchg32_result_fail, 1, "cmpxchg_result_fail");
+	ASSERT_EQ(skel->bss->cmpxchg32_result_succeed, 1, "cmpxchg_result_succeed");
+}
+
+static void test_xchg(struct atomics_lskel *skel)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* No need to attach it, just run it directly */
+	prog_fd = skel->progs.xchg.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	ASSERT_EQ(skel->data->xchg64_value, 2, "xchg64_value");
+	ASSERT_EQ(skel->bss->xchg64_result, 1, "xchg64_result");
+
+	ASSERT_EQ(skel->data->xchg32_value, 2, "xchg32_value");
+	ASSERT_EQ(skel->bss->xchg32_result, 1, "xchg32_result");
+}
+
+void test_atomics(void)
+{
+	struct atomics_lskel *skel;
+	int err;
+
+	skel = atomics_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "atomics skeleton open"))
+		return;
+
+	skel->keyring_id = KEY_SPEC_SESSION_KEYRING;
+	err = atomics_lskel__load(skel);
+	if (!ASSERT_OK(err, "atomics skeleton load"))
+		goto cleanup;
+
+	if (skel->data->skip_tests) {
+		printf("%s:SKIP:no ENABLE_ATOMICS_TESTS (missing Clang BPF atomics support)",
+		       __func__);
+		test__skip();
+		goto cleanup;
+	}
+	skel->bss->pid = getpid();
+
+	if (test__start_subtest("add"))
+		test_add(skel);
+	if (test__start_subtest("sub"))
+		test_sub(skel);
+	if (test__start_subtest("and"))
+		test_and(skel);
+	if (test__start_subtest("or"))
+		test_or(skel);
+	if (test__start_subtest("xor"))
+		test_xor(skel);
+	if (test__start_subtest("cmpxchg"))
+		test_cmpxchg(skel);
+	if (test__start_subtest("xchg"))
+		test_xchg(skel);
+
+cleanup:
+	atomics_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/attach_probe.c b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
new file mode 100644
index 000000000000..9e77e5da7097
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
@@ -0,0 +1,441 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_attach_kprobe_sleepable.skel.h"
+#include "test_attach_probe_manual.skel.h"
+#include "test_attach_probe.skel.h"
+#include "kprobe_write_ctx.skel.h"
+
+/* this is how USDT semaphore is actually defined, except volatile modifier */
+volatile unsigned short uprobe_ref_ctr __attribute__((unused)) __attribute((section(".probes")));
+
+/* uprobe attach point */
+static noinline void trigger_func(void)
+{
+	asm volatile ("");
+}
+
+/* attach point for byname uprobe */
+static noinline void trigger_func2(void)
+{
+	asm volatile ("");
+}
+
+/* attach point for byname sleepable uprobe */
+static noinline void trigger_func3(void)
+{
+	asm volatile ("");
+}
+
+/* attach point for ref_ctr */
+static noinline void trigger_func4(void)
+{
+	asm volatile ("");
+}
+
+static char test_data[] = "test_data";
+
+/* manual attach kprobe/kretprobe/uprobe/uretprobe testings */
+static void test_attach_probe_manual(enum probe_attach_mode attach_mode)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	DECLARE_LIBBPF_OPTS(bpf_kprobe_opts, kprobe_opts);
+	struct bpf_link *kprobe_link, *kretprobe_link;
+	struct bpf_link *uprobe_link, *uretprobe_link;
+	struct test_attach_probe_manual *skel;
+	ssize_t uprobe_offset;
+
+	skel = test_attach_probe_manual__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_kprobe_manual_open_and_load"))
+		return;
+
+	uprobe_offset = get_uprobe_offset(&trigger_func);
+	if (!ASSERT_GE(uprobe_offset, 0, "uprobe_offset"))
+		goto cleanup;
+
+	/* manual-attach kprobe/kretprobe */
+	kprobe_opts.attach_mode = attach_mode;
+	kprobe_opts.retprobe = false;
+	kprobe_link = bpf_program__attach_kprobe_opts(skel->progs.handle_kprobe,
+						      SYS_NANOSLEEP_KPROBE_NAME,
+						      &kprobe_opts);
+	if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
+		goto cleanup;
+	skel->links.handle_kprobe = kprobe_link;
+
+	kprobe_opts.retprobe = true;
+	kretprobe_link = bpf_program__attach_kprobe_opts(skel->progs.handle_kretprobe,
+							 SYS_NANOSLEEP_KPROBE_NAME,
+							 &kprobe_opts);
+	if (!ASSERT_OK_PTR(kretprobe_link, "attach_kretprobe"))
+		goto cleanup;
+	skel->links.handle_kretprobe = kretprobe_link;
+
+	/* manual-attach uprobe/uretprobe */
+	uprobe_opts.attach_mode = attach_mode;
+	uprobe_opts.ref_ctr_offset = 0;
+	uprobe_opts.retprobe = false;
+	uprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe,
+						      0 /* self pid */,
+						      "/proc/self/exe",
+						      uprobe_offset,
+						      &uprobe_opts);
+	if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe"))
+		goto cleanup;
+	skel->links.handle_uprobe = uprobe_link;
+
+	uprobe_opts.retprobe = true;
+	uretprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe,
+							 -1 /* any pid */,
+							 "/proc/self/exe",
+							 uprobe_offset, &uprobe_opts);
+	if (!ASSERT_OK_PTR(uretprobe_link, "attach_uretprobe"))
+		goto cleanup;
+	skel->links.handle_uretprobe = uretprobe_link;
+
+	/* attach uprobe by function name manually */
+	uprobe_opts.func_name = "trigger_func2";
+	uprobe_opts.retprobe = false;
+	uprobe_opts.ref_ctr_offset = 0;
+	skel->links.handle_uprobe_byname =
+			bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe_byname,
+							0 /* this pid */,
+							"/proc/self/exe",
+							0, &uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname, "attach_uprobe_byname"))
+		goto cleanup;
+
+	/* trigger & validate kprobe && kretprobe */
+	usleep(1);
+
+	/* trigger & validate uprobe & uretprobe */
+	trigger_func();
+
+	/* trigger & validate uprobe attached by name */
+	trigger_func2();
+
+	ASSERT_EQ(skel->bss->kprobe_res, 1, "check_kprobe_res");
+	ASSERT_EQ(skel->bss->kretprobe_res, 2, "check_kretprobe_res");
+	ASSERT_EQ(skel->bss->uprobe_res, 3, "check_uprobe_res");
+	ASSERT_EQ(skel->bss->uretprobe_res, 4, "check_uretprobe_res");
+	ASSERT_EQ(skel->bss->uprobe_byname_res, 5, "check_uprobe_byname_res");
+
+cleanup:
+	test_attach_probe_manual__destroy(skel);
+}
+
+/* attach uprobe/uretprobe long event name testings */
+static void test_attach_uprobe_long_event_name(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct bpf_link *uprobe_link, *uretprobe_link;
+	struct test_attach_probe_manual *skel;
+	ssize_t uprobe_offset;
+	char path[PATH_MAX] = {0};
+
+	skel = test_attach_probe_manual__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_kprobe_manual_open_and_load"))
+		return;
+
+	uprobe_offset = get_uprobe_offset(&trigger_func);
+	if (!ASSERT_GE(uprobe_offset, 0, "uprobe_offset"))
+		goto cleanup;
+
+	if (!ASSERT_GT(readlink("/proc/self/exe", path, PATH_MAX - 1), 0, "readlink"))
+		goto cleanup;
+
+	/* manual-attach uprobe/uretprobe */
+	uprobe_opts.attach_mode = PROBE_ATTACH_MODE_LEGACY;
+	uprobe_opts.ref_ctr_offset = 0;
+	uprobe_opts.retprobe = false;
+	uprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe,
+						      0 /* self pid */,
+						      path,
+						      uprobe_offset,
+						      &uprobe_opts);
+	if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe_long_event_name"))
+		goto cleanup;
+	skel->links.handle_uprobe = uprobe_link;
+
+	uprobe_opts.retprobe = true;
+	uretprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe,
+							 -1 /* any pid */,
+							 path,
+							 uprobe_offset, &uprobe_opts);
+	if (!ASSERT_OK_PTR(uretprobe_link, "attach_uretprobe_long_event_name"))
+		goto cleanup;
+	skel->links.handle_uretprobe = uretprobe_link;
+
+cleanup:
+	test_attach_probe_manual__destroy(skel);
+}
+
+/* attach kprobe/kretprobe long event name testings */
+static void test_attach_kprobe_long_event_name(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_kprobe_opts, kprobe_opts);
+	struct bpf_link *kprobe_link, *kretprobe_link;
+	struct test_attach_probe_manual *skel;
+
+	skel = test_attach_probe_manual__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_kprobe_manual_open_and_load"))
+		return;
+
+	/* manual-attach kprobe/kretprobe */
+	kprobe_opts.attach_mode = PROBE_ATTACH_MODE_LEGACY;
+	kprobe_opts.retprobe = false;
+	kprobe_link = bpf_program__attach_kprobe_opts(skel->progs.handle_kprobe,
+						      "bpf_testmod_looooooooooooooooooooooooooooooong_name",
+						      &kprobe_opts);
+	if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe_long_event_name"))
+		goto cleanup;
+	skel->links.handle_kprobe = kprobe_link;
+
+	kprobe_opts.retprobe = true;
+	kretprobe_link = bpf_program__attach_kprobe_opts(skel->progs.handle_kretprobe,
+							 "bpf_testmod_looooooooooooooooooooooooooooooong_name",
+							 &kprobe_opts);
+	if (!ASSERT_OK_PTR(kretprobe_link, "attach_kretprobe_long_event_name"))
+		goto cleanup;
+	skel->links.handle_kretprobe = kretprobe_link;
+
+cleanup:
+	test_attach_probe_manual__destroy(skel);
+}
+
+#ifdef __x86_64__
+/* attach kprobe/kretprobe long event name testings */
+static void test_attach_kprobe_write_ctx(void)
+{
+	struct kprobe_write_ctx *skel = NULL;
+	struct bpf_link *link = NULL;
+
+	skel = kprobe_write_ctx__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_write_ctx__open_and_load"))
+		return;
+
+	link = bpf_program__attach_kprobe_opts(skel->progs.kprobe_write_ctx,
+					     "bpf_fentry_test1", NULL);
+	if (!ASSERT_ERR_PTR(link, "bpf_program__attach_kprobe_opts"))
+		bpf_link__destroy(link);
+
+	kprobe_write_ctx__destroy(skel);
+}
+#else
+static void test_attach_kprobe_write_ctx(void)
+{
+	test__skip();
+}
+#endif
+
+static void test_attach_probe_auto(struct test_attach_probe *skel)
+{
+	struct bpf_link *uprobe_err_link;
+
+	/* auto-attachable kprobe and kretprobe */
+	skel->links.handle_kprobe_auto = bpf_program__attach(skel->progs.handle_kprobe_auto);
+	ASSERT_OK_PTR(skel->links.handle_kprobe_auto, "attach_kprobe_auto");
+
+	skel->links.handle_kretprobe_auto = bpf_program__attach(skel->progs.handle_kretprobe_auto);
+	ASSERT_OK_PTR(skel->links.handle_kretprobe_auto, "attach_kretprobe_auto");
+
+	/* verify auto-attach fails for old-style uprobe definition */
+	uprobe_err_link = bpf_program__attach(skel->progs.handle_uprobe_byname);
+	if (!ASSERT_EQ(libbpf_get_error(uprobe_err_link), -EOPNOTSUPP,
+		       "auto-attach should fail for old-style name"))
+		return;
+
+	/* verify auto-attach works */
+	skel->links.handle_uretprobe_byname =
+			bpf_program__attach(skel->progs.handle_uretprobe_byname);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname, "attach_uretprobe_byname"))
+		return;
+
+	/* trigger & validate kprobe && kretprobe */
+	usleep(1);
+
+	/* trigger & validate uprobe attached by name */
+	trigger_func2();
+
+	ASSERT_EQ(skel->bss->kprobe2_res, 11, "check_kprobe_auto_res");
+	ASSERT_EQ(skel->bss->kretprobe2_res, 22, "check_kretprobe_auto_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname_res, 6, "check_uretprobe_byname_res");
+}
+
+static void test_uprobe_lib(struct test_attach_probe *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	FILE *devnull;
+
+	/* test attach by name for a library function, using the library
+	 * as the binary argument. libc.so.6 will be resolved via dlopen()/dlinfo().
+	 */
+	uprobe_opts.func_name = "fopen";
+	uprobe_opts.retprobe = false;
+	skel->links.handle_uprobe_byname2 =
+			bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe_byname2,
+							0 /* this pid */,
+							"libc.so.6",
+							0, &uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname2, "attach_uprobe_byname2"))
+		return;
+
+	uprobe_opts.func_name = "fclose";
+	uprobe_opts.retprobe = true;
+	skel->links.handle_uretprobe_byname2 =
+			bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe_byname2,
+							-1 /* any pid */,
+							"libc.so.6",
+							0, &uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname2, "attach_uretprobe_byname2"))
+		return;
+
+	/* trigger & validate shared library u[ret]probes attached by name */
+	devnull = fopen("/dev/null", "r");
+	fclose(devnull);
+
+	ASSERT_EQ(skel->bss->uprobe_byname2_res, 7, "check_uprobe_byname2_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname2_res, 8, "check_uretprobe_byname2_res");
+}
+
+static void test_uprobe_ref_ctr(struct test_attach_probe *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct bpf_link *uprobe_link, *uretprobe_link;
+	ssize_t uprobe_offset, ref_ctr_offset;
+
+	uprobe_offset = get_uprobe_offset(&trigger_func4);
+	if (!ASSERT_GE(uprobe_offset, 0, "uprobe_offset_ref_ctr"))
+		return;
+
+	ref_ctr_offset = get_rel_offset((uintptr_t)&uprobe_ref_ctr);
+	if (!ASSERT_GE(ref_ctr_offset, 0, "ref_ctr_offset"))
+		return;
+
+	ASSERT_EQ(uprobe_ref_ctr, 0, "uprobe_ref_ctr_before");
+
+	uprobe_opts.retprobe = false;
+	uprobe_opts.ref_ctr_offset = ref_ctr_offset;
+	uprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe_ref_ctr,
+						      0 /* self pid */,
+						      "/proc/self/exe",
+						      uprobe_offset,
+						      &uprobe_opts);
+	if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe_ref_ctr"))
+		return;
+	skel->links.handle_uprobe_ref_ctr = uprobe_link;
+
+	ASSERT_GT(uprobe_ref_ctr, 0, "uprobe_ref_ctr_after");
+
+	/* if uprobe uses ref_ctr, uretprobe has to use ref_ctr as well */
+	uprobe_opts.retprobe = true;
+	uprobe_opts.ref_ctr_offset = ref_ctr_offset;
+	uretprobe_link = bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe_ref_ctr,
+							 -1 /* any pid */,
+							 "/proc/self/exe",
+							 uprobe_offset, &uprobe_opts);
+	if (!ASSERT_OK_PTR(uretprobe_link, "attach_uretprobe_ref_ctr"))
+		return;
+	skel->links.handle_uretprobe_ref_ctr = uretprobe_link;
+}
+
+static void test_kprobe_sleepable(void)
+{
+	struct test_attach_kprobe_sleepable *skel;
+
+	skel = test_attach_kprobe_sleepable__open();
+	if (!ASSERT_OK_PTR(skel, "skel_kprobe_sleepable_open"))
+		return;
+
+	/* sleepable kprobe test case needs flags set before loading */
+	if (!ASSERT_OK(bpf_program__set_flags(skel->progs.handle_kprobe_sleepable,
+		BPF_F_SLEEPABLE), "kprobe_sleepable_flags"))
+		goto cleanup;
+
+	if (!ASSERT_OK(test_attach_kprobe_sleepable__load(skel),
+		       "skel_kprobe_sleepable_load"))
+		goto cleanup;
+
+	/* sleepable kprobes should not attach successfully */
+	skel->links.handle_kprobe_sleepable = bpf_program__attach(skel->progs.handle_kprobe_sleepable);
+	ASSERT_ERR_PTR(skel->links.handle_kprobe_sleepable, "attach_kprobe_sleepable");
+
+cleanup:
+	test_attach_kprobe_sleepable__destroy(skel);
+}
+
+static void test_uprobe_sleepable(struct test_attach_probe *skel)
+{
+	/* test sleepable uprobe and uretprobe variants */
+	skel->links.handle_uprobe_byname3_sleepable = bpf_program__attach(skel->progs.handle_uprobe_byname3_sleepable);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname3_sleepable, "attach_uprobe_byname3_sleepable"))
+		return;
+
+	skel->links.handle_uprobe_byname3 = bpf_program__attach(skel->progs.handle_uprobe_byname3);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname3, "attach_uprobe_byname3"))
+		return;
+
+	skel->links.handle_uretprobe_byname3_sleepable = bpf_program__attach(skel->progs.handle_uretprobe_byname3_sleepable);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname3_sleepable, "attach_uretprobe_byname3_sleepable"))
+		return;
+
+	skel->links.handle_uretprobe_byname3 = bpf_program__attach(skel->progs.handle_uretprobe_byname3);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname3, "attach_uretprobe_byname3"))
+		return;
+
+	skel->bss->user_ptr = test_data;
+
+	/* trigger & validate sleepable uprobe attached by name */
+	trigger_func3();
+
+	ASSERT_EQ(skel->bss->uprobe_byname3_sleepable_res, 9, "check_uprobe_byname3_sleepable_res");
+	ASSERT_EQ(skel->bss->uprobe_byname3_str_sleepable_res, 10, "check_uprobe_byname3_str_sleepable_res");
+	ASSERT_EQ(skel->bss->uprobe_byname3_res, 11, "check_uprobe_byname3_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname3_sleepable_res, 12, "check_uretprobe_byname3_sleepable_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname3_str_sleepable_res, 13, "check_uretprobe_byname3_str_sleepable_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname3_res, 14, "check_uretprobe_byname3_res");
+}
+
+void test_attach_probe(void)
+{
+	struct test_attach_probe *skel;
+
+	skel = test_attach_probe__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	if (!ASSERT_OK(test_attach_probe__load(skel), "skel_load"))
+		goto cleanup;
+	if (!ASSERT_OK_PTR(skel->bss, "check_bss"))
+		goto cleanup;
+
+	if (test__start_subtest("manual-default"))
+		test_attach_probe_manual(PROBE_ATTACH_MODE_DEFAULT);
+	if (test__start_subtest("manual-legacy"))
+		test_attach_probe_manual(PROBE_ATTACH_MODE_LEGACY);
+	if (test__start_subtest("manual-perf"))
+		test_attach_probe_manual(PROBE_ATTACH_MODE_PERF);
+	if (test__start_subtest("manual-link"))
+		test_attach_probe_manual(PROBE_ATTACH_MODE_LINK);
+
+	if (test__start_subtest("auto"))
+		test_attach_probe_auto(skel);
+	if (test__start_subtest("kprobe-sleepable"))
+		test_kprobe_sleepable();
+	if (test__start_subtest("uprobe-lib"))
+		test_uprobe_lib(skel);
+	if (test__start_subtest("uprobe-sleepable"))
+		test_uprobe_sleepable(skel);
+	if (test__start_subtest("uprobe-ref_ctr"))
+		test_uprobe_ref_ctr(skel);
+
+	if (test__start_subtest("uprobe-long_name"))
+		test_attach_uprobe_long_event_name();
+	if (test__start_subtest("kprobe-long_name"))
+		test_attach_kprobe_long_event_name();
+	if (test__start_subtest("kprobe-write-ctx"))
+		test_attach_kprobe_write_ctx();
+
+cleanup:
+	test_attach_probe__destroy(skel);
+	ASSERT_EQ(uprobe_ref_ctr, 0, "uprobe_ref_ctr_cleanup");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/autoattach.c b/tools/testing/selftests/bpf/prog_tests/autoattach.c
new file mode 100644
index 000000000000..dc5e01d279bd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/autoattach.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+
+#include <test_progs.h>
+#include "test_autoattach.skel.h"
+
+void test_autoattach(void)
+{
+	struct test_autoattach *skel;
+
+	skel = test_autoattach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto cleanup;
+
+	/* disable auto-attach for prog2 */
+	bpf_program__set_autoattach(skel->progs.prog2, false);
+	ASSERT_TRUE(bpf_program__autoattach(skel->progs.prog1), "autoattach_prog1");
+	ASSERT_FALSE(bpf_program__autoattach(skel->progs.prog2), "autoattach_prog2");
+	if (!ASSERT_OK(test_autoattach__attach(skel), "skel_attach"))
+		goto cleanup;
+
+	usleep(1);
+
+	ASSERT_TRUE(skel->bss->prog1_called, "attached_prog1");
+	ASSERT_FALSE(skel->bss->prog2_called, "attached_prog2");
+
+cleanup:
+	test_autoattach__destroy(skel);
+}
+
diff --git a/tools/testing/selftests/bpf/prog_tests/autoload.c b/tools/testing/selftests/bpf/prog_tests/autoload.c
new file mode 100644
index 000000000000..3693f7d133eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/autoload.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <time.h>
+#include "test_autoload.skel.h"
+
+void test_autoload(void)
+{
+	int duration = 0, err;
+	struct test_autoload* skel;
+
+	skel = test_autoload__open_and_load();
+	/* prog3 should be broken */
+	if (CHECK(skel, "skel_open_and_load", "unexpected success\n"))
+		goto cleanup;
+
+	skel = test_autoload__open();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		goto cleanup;
+
+	/* don't load prog3 */
+	bpf_program__set_autoload(skel->progs.prog3, false);
+
+	err = test_autoload__load(skel);
+	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
+		goto cleanup;
+
+	err = test_autoload__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	usleep(1);
+
+	CHECK(!skel->bss->prog1_called, "prog1", "not called\n");
+	CHECK(!skel->bss->prog2_called, "prog2", "not called\n");
+	CHECK(skel->bss->prog3_called, "prog3", "called?!\n");
+
+cleanup:
+	test_autoload__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bad_struct_ops.c b/tools/testing/selftests/bpf/prog_tests/bad_struct_ops.c
new file mode 100644
index 000000000000..6a707213e46b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bad_struct_ops.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "bad_struct_ops.skel.h"
+#include "bad_struct_ops2.skel.h"
+
+static void invalid_prog_reuse(void)
+{
+	struct bad_struct_ops *skel;
+	char *log = NULL;
+	int err;
+
+	skel = bad_struct_ops__open();
+	if (!ASSERT_OK_PTR(skel, "bad_struct_ops__open"))
+		return;
+
+	if (start_libbpf_log_capture())
+		goto cleanup;
+
+	err = bad_struct_ops__load(skel);
+	log = stop_libbpf_log_capture();
+	ASSERT_ERR(err, "bad_struct_ops__load should fail");
+	ASSERT_HAS_SUBSTR(log,
+		"struct_ops init_kern testmod_2 func ptr test_1: invalid reuse of prog test_1",
+		"expected init_kern message");
+
+cleanup:
+	free(log);
+	bad_struct_ops__destroy(skel);
+}
+
+static void unused_program(void)
+{
+	struct bad_struct_ops2 *skel;
+	char *log = NULL;
+	int err;
+
+	skel = bad_struct_ops2__open();
+	if (!ASSERT_OK_PTR(skel, "bad_struct_ops2__open"))
+		return;
+
+	/* struct_ops programs not referenced from any maps are open
+	 * with autoload set to true.
+	 */
+	ASSERT_TRUE(bpf_program__autoload(skel->progs.foo), "foo autoload == true");
+
+	if (start_libbpf_log_capture())
+		goto cleanup;
+
+	err = bad_struct_ops2__load(skel);
+	ASSERT_ERR(err, "bad_struct_ops2__load should fail");
+	log = stop_libbpf_log_capture();
+	ASSERT_HAS_SUBSTR(log, "prog 'foo': failed to load",
+			  "message about 'foo' failing to load");
+
+cleanup:
+	free(log);
+	bad_struct_ops2__destroy(skel);
+}
+
+void test_bad_struct_ops(void)
+{
+	if (test__start_subtest("invalid_prog_reuse"))
+		invalid_prog_reuse();
+	if (test__start_subtest("unused_program"))
+		unused_program();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bind_perm.c b/tools/testing/selftests/bpf/prog_tests/bind_perm.c
new file mode 100644
index 000000000000..f7cd129cb82b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bind_perm.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include "test_progs.h"
+#include "cap_helpers.h"
+#include "bind_perm.skel.h"
+
+static int create_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return -1;
+
+	return 0;
+}
+
+void try_bind(int family, int port, int expected_errno)
+{
+	struct sockaddr_storage addr = {};
+	struct sockaddr_in6 *sin6;
+	struct sockaddr_in *sin;
+	int fd = -1;
+
+	fd = socket(family, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket"))
+		goto close_socket;
+
+	if (family == AF_INET) {
+		sin = (struct sockaddr_in *)&addr;
+		sin->sin_family = family;
+		sin->sin_port = htons(port);
+	} else {
+		sin6 = (struct sockaddr_in6 *)&addr;
+		sin6->sin6_family = family;
+		sin6->sin6_port = htons(port);
+	}
+
+	errno = 0;
+	bind(fd, (struct sockaddr *)&addr, sizeof(addr));
+	ASSERT_EQ(errno, expected_errno, "bind");
+
+close_socket:
+	if (fd >= 0)
+		close(fd);
+}
+
+void test_bind_perm(void)
+{
+	const __u64 net_bind_svc_cap = 1ULL << CAP_NET_BIND_SERVICE;
+	struct bind_perm *skel;
+	__u64 old_caps = 0;
+	int cgroup_fd;
+
+	if (create_netns())
+		return;
+
+	cgroup_fd = test__join_cgroup("/bind_perm");
+	if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup"))
+		return;
+
+	skel = bind_perm__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto close_cgroup_fd;
+
+	skel->links.bind_v4_prog = bpf_program__attach_cgroup(skel->progs.bind_v4_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel, "bind_v4_prog"))
+		goto close_skeleton;
+
+	skel->links.bind_v6_prog = bpf_program__attach_cgroup(skel->progs.bind_v6_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel, "bind_v6_prog"))
+		goto close_skeleton;
+
+	ASSERT_OK(cap_disable_effective(net_bind_svc_cap, &old_caps),
+		  "cap_disable_effective");
+
+	try_bind(AF_INET, 110, EACCES);
+	try_bind(AF_INET6, 110, EACCES);
+
+	try_bind(AF_INET, 111, 0);
+	try_bind(AF_INET6, 111, 0);
+
+	if (old_caps & net_bind_svc_cap)
+		ASSERT_OK(cap_enable_effective(net_bind_svc_cap, NULL),
+			  "cap_enable_effective");
+
+close_skeleton:
+	bind_perm__destroy(skel);
+close_cgroup_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c b/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c
new file mode 100644
index 000000000000..42b49870e520
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bloom_filter_map.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <sys/syscall.h>
+#include <limits.h>
+#include <test_progs.h>
+#include "bloom_filter_map.skel.h"
+
+#ifndef NUMA_NO_NODE
+#define NUMA_NO_NODE	(-1)
+#endif
+
+static void test_fail_cases(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	__u32 value = 0;
+	int fd, err;
+
+	/* Invalid key size */
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 4, sizeof(value), 100, NULL);
+	if (!ASSERT_LT(fd, 0, "bpf_map_create bloom filter invalid key size"))
+		close(fd);
+
+	/* Invalid value size */
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, 0, 100, NULL);
+	if (!ASSERT_LT(fd, 0, "bpf_map_create bloom filter invalid value size 0"))
+		close(fd);
+
+	/* Invalid value size: too big */
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, INT32_MAX, 100, NULL);
+	if (!ASSERT_LT(fd, 0, "bpf_map_create bloom filter invalid value too large"))
+		close(fd);
+
+	/* Invalid max entries size */
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, sizeof(value), 0, NULL);
+	if (!ASSERT_LT(fd, 0, "bpf_map_create bloom filter invalid max entries size"))
+		close(fd);
+
+	/* Bloom filter maps do not support BPF_F_NO_PREALLOC */
+	opts.map_flags = BPF_F_NO_PREALLOC;
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, sizeof(value), 100, &opts);
+	if (!ASSERT_LT(fd, 0, "bpf_map_create bloom filter invalid flags"))
+		close(fd);
+
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, sizeof(value), 100, NULL);
+	if (!ASSERT_GE(fd, 0, "bpf_map_create bloom filter"))
+		return;
+
+	/* Test invalid flags */
+	err = bpf_map_update_elem(fd, NULL, &value, -1);
+	ASSERT_EQ(err, -EINVAL, "bpf_map_update_elem bloom filter invalid flags");
+
+	err = bpf_map_update_elem(fd, NULL, &value, BPF_EXIST);
+	ASSERT_EQ(err, -EINVAL, "bpf_map_update_elem bloom filter invalid flags");
+
+	err = bpf_map_update_elem(fd, NULL, &value, BPF_F_LOCK);
+	ASSERT_EQ(err, -EINVAL, "bpf_map_update_elem bloom filter invalid flags");
+
+	err = bpf_map_update_elem(fd, NULL, &value, BPF_NOEXIST);
+	ASSERT_EQ(err, -EINVAL, "bpf_map_update_elem bloom filter invalid flags");
+
+	err = bpf_map_update_elem(fd, NULL, &value, 10000);
+	ASSERT_EQ(err, -EINVAL, "bpf_map_update_elem bloom filter invalid flags");
+
+	close(fd);
+}
+
+static void test_success_cases(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	char value[11];
+	int fd, err;
+
+	/* Create a map */
+	opts.map_flags = BPF_F_ZERO_SEED | BPF_F_NUMA_NODE;
+	opts.numa_node = NUMA_NO_NODE;
+	fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, sizeof(value), 100, &opts);
+	if (!ASSERT_GE(fd, 0, "bpf_map_create bloom filter success case"))
+		return;
+
+	/* Add a value to the bloom filter */
+	err = bpf_map_update_elem(fd, NULL, &value, 0);
+	if (!ASSERT_OK(err, "bpf_map_update_elem bloom filter success case"))
+		goto done;
+
+	 /* Lookup a value in the bloom filter */
+	err = bpf_map_lookup_elem(fd, NULL, &value);
+	ASSERT_OK(err, "bpf_map_update_elem bloom filter success case");
+
+done:
+	close(fd);
+}
+
+static void check_bloom(struct bloom_filter_map *skel)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(skel->progs.check_bloom);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->error, 0, "error");
+
+	bpf_link__destroy(link);
+}
+
+static void test_inner_map(struct bloom_filter_map *skel, const __u32 *rand_vals,
+			   __u32 nr_rand_vals)
+{
+	int outer_map_fd, inner_map_fd, err, i, key = 0;
+	struct bpf_link *link;
+
+	/* Create a bloom filter map that will be used as the inner map */
+	inner_map_fd = bpf_map_create(BPF_MAP_TYPE_BLOOM_FILTER, NULL, 0, sizeof(*rand_vals),
+				      nr_rand_vals, NULL);
+	if (!ASSERT_GE(inner_map_fd, 0, "bpf_map_create bloom filter inner map"))
+		return;
+
+	for (i = 0; i < nr_rand_vals; i++) {
+		err = bpf_map_update_elem(inner_map_fd, NULL, rand_vals + i, BPF_ANY);
+		if (!ASSERT_OK(err, "Add random value to inner_map_fd"))
+			goto done;
+	}
+
+	/* Add the bloom filter map to the outer map */
+	outer_map_fd = bpf_map__fd(skel->maps.outer_map);
+	err = bpf_map_update_elem(outer_map_fd, &key, &inner_map_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "Add bloom filter map to outer map"))
+		goto done;
+
+	/* Attach the bloom_filter_inner_map prog */
+	link = bpf_program__attach(skel->progs.inner_map);
+	if (!ASSERT_OK_PTR(link, "link"))
+		goto delete_inner_map;
+
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->error, 0, "error");
+
+	bpf_link__destroy(link);
+
+delete_inner_map:
+	/* Ensure the inner bloom filter map can be deleted */
+	err = bpf_map_delete_elem(outer_map_fd, &key);
+	ASSERT_OK(err, "Delete inner bloom filter map");
+
+done:
+	close(inner_map_fd);
+}
+
+static int setup_progs(struct bloom_filter_map **out_skel, __u32 **out_rand_vals,
+		       __u32 *out_nr_rand_vals)
+{
+	struct bloom_filter_map *skel;
+	int random_data_fd, bloom_fd;
+	__u32 *rand_vals = NULL;
+	__u32 map_size, val;
+	int err, i;
+
+	/* Set up a bloom filter map skeleton */
+	skel = bloom_filter_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bloom_filter_map__open_and_load"))
+		return -EINVAL;
+
+	/* Set up rand_vals */
+	map_size = bpf_map__max_entries(skel->maps.map_random_data);
+	rand_vals = malloc(sizeof(*rand_vals) * map_size);
+	if (!rand_vals) {
+		err = -ENOMEM;
+		goto error;
+	}
+
+	/* Generate random values and populate both skeletons */
+	random_data_fd = bpf_map__fd(skel->maps.map_random_data);
+	bloom_fd = bpf_map__fd(skel->maps.map_bloom);
+	for (i = 0; i < map_size; i++) {
+		val = rand();
+
+		err = bpf_map_update_elem(random_data_fd, &i, &val, BPF_ANY);
+		if (!ASSERT_OK(err, "Add random value to map_random_data"))
+			goto error;
+
+		err = bpf_map_update_elem(bloom_fd, NULL, &val, BPF_ANY);
+		if (!ASSERT_OK(err, "Add random value to map_bloom"))
+			goto error;
+
+		rand_vals[i] = val;
+	}
+
+	*out_skel = skel;
+	*out_rand_vals = rand_vals;
+	*out_nr_rand_vals = map_size;
+
+	return 0;
+
+error:
+	bloom_filter_map__destroy(skel);
+	if (rand_vals)
+		free(rand_vals);
+	return err;
+}
+
+void test_bloom_filter_map(void)
+{
+	__u32 *rand_vals = NULL, nr_rand_vals = 0;
+	struct bloom_filter_map *skel = NULL;
+	int err;
+
+	test_fail_cases();
+	test_success_cases();
+
+	err = setup_progs(&skel, &rand_vals, &nr_rand_vals);
+	if (err)
+		return;
+
+	test_inner_map(skel, rand_vals, nr_rand_vals);
+	free(rand_vals);
+
+	check_bloom(skel);
+
+	bloom_filter_map__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c
new file mode 100644
index 000000000000..75f4dff7d042
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_cookie.c
@@ -0,0 +1,763 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <bpf/btf.h>
+#include "test_bpf_cookie.skel.h"
+#include "kprobe_multi.skel.h"
+#include "uprobe_multi.skel.h"
+
+/* uprobe attach point */
+static noinline void trigger_func(void)
+{
+	asm volatile ("");
+}
+
+static void kprobe_subtest(struct test_bpf_cookie *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_kprobe_opts, opts);
+	struct bpf_link *link1 = NULL, *link2 = NULL;
+	struct bpf_link *retlink1 = NULL, *retlink2 = NULL;
+
+	/* attach two kprobes */
+	opts.bpf_cookie = 0x1;
+	opts.retprobe = false;
+	link1 = bpf_program__attach_kprobe_opts(skel->progs.handle_kprobe,
+						 SYS_NANOSLEEP_KPROBE_NAME, &opts);
+	if (!ASSERT_OK_PTR(link1, "link1"))
+		goto cleanup;
+
+	opts.bpf_cookie = 0x2;
+	opts.retprobe = false;
+	link2 = bpf_program__attach_kprobe_opts(skel->progs.handle_kprobe,
+						 SYS_NANOSLEEP_KPROBE_NAME, &opts);
+	if (!ASSERT_OK_PTR(link2, "link2"))
+		goto cleanup;
+
+	/* attach two kretprobes */
+	opts.bpf_cookie = 0x10;
+	opts.retprobe = true;
+	retlink1 = bpf_program__attach_kprobe_opts(skel->progs.handle_kretprobe,
+						    SYS_NANOSLEEP_KPROBE_NAME, &opts);
+	if (!ASSERT_OK_PTR(retlink1, "retlink1"))
+		goto cleanup;
+
+	opts.bpf_cookie = 0x20;
+	opts.retprobe = true;
+	retlink2 = bpf_program__attach_kprobe_opts(skel->progs.handle_kretprobe,
+						    SYS_NANOSLEEP_KPROBE_NAME, &opts);
+	if (!ASSERT_OK_PTR(retlink2, "retlink2"))
+		goto cleanup;
+
+	/* trigger kprobe && kretprobe */
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->kprobe_res, 0x1 | 0x2, "kprobe_res");
+	ASSERT_EQ(skel->bss->kretprobe_res, 0x10 | 0x20, "kretprobe_res");
+
+cleanup:
+	bpf_link__destroy(link1);
+	bpf_link__destroy(link2);
+	bpf_link__destroy(retlink1);
+	bpf_link__destroy(retlink2);
+}
+
+static void kprobe_multi_test_run(struct kprobe_multi *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(skel->bss->kprobe_test1_result, 1, "kprobe_test1_result");
+	ASSERT_EQ(skel->bss->kprobe_test2_result, 1, "kprobe_test2_result");
+	ASSERT_EQ(skel->bss->kprobe_test3_result, 1, "kprobe_test3_result");
+	ASSERT_EQ(skel->bss->kprobe_test4_result, 1, "kprobe_test4_result");
+	ASSERT_EQ(skel->bss->kprobe_test5_result, 1, "kprobe_test5_result");
+	ASSERT_EQ(skel->bss->kprobe_test6_result, 1, "kprobe_test6_result");
+	ASSERT_EQ(skel->bss->kprobe_test7_result, 1, "kprobe_test7_result");
+	ASSERT_EQ(skel->bss->kprobe_test8_result, 1, "kprobe_test8_result");
+
+	ASSERT_EQ(skel->bss->kretprobe_test1_result, 1, "kretprobe_test1_result");
+	ASSERT_EQ(skel->bss->kretprobe_test2_result, 1, "kretprobe_test2_result");
+	ASSERT_EQ(skel->bss->kretprobe_test3_result, 1, "kretprobe_test3_result");
+	ASSERT_EQ(skel->bss->kretprobe_test4_result, 1, "kretprobe_test4_result");
+	ASSERT_EQ(skel->bss->kretprobe_test5_result, 1, "kretprobe_test5_result");
+	ASSERT_EQ(skel->bss->kretprobe_test6_result, 1, "kretprobe_test6_result");
+	ASSERT_EQ(skel->bss->kretprobe_test7_result, 1, "kretprobe_test7_result");
+	ASSERT_EQ(skel->bss->kretprobe_test8_result, 1, "kretprobe_test8_result");
+}
+
+static void kprobe_multi_link_api_subtest(void)
+{
+	int prog_fd, link1_fd = -1, link2_fd = -1;
+	struct kprobe_multi *skel = NULL;
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	unsigned long long addrs[8];
+	__u64 cookies[8];
+
+	if (!ASSERT_OK(load_kallsyms(), "load_kallsyms"))
+		goto cleanup;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	skel->bss->test_cookie = true;
+
+#define GET_ADDR(__sym, __addr) ({				\
+	__addr = ksym_get_addr(__sym);				\
+	if (!ASSERT_NEQ(__addr, 0, "ksym_get_addr " #__sym))	\
+		goto cleanup;					\
+})
+
+	GET_ADDR("bpf_fentry_test1", addrs[0]);
+	GET_ADDR("bpf_fentry_test3", addrs[1]);
+	GET_ADDR("bpf_fentry_test4", addrs[2]);
+	GET_ADDR("bpf_fentry_test5", addrs[3]);
+	GET_ADDR("bpf_fentry_test6", addrs[4]);
+	GET_ADDR("bpf_fentry_test7", addrs[5]);
+	GET_ADDR("bpf_fentry_test2", addrs[6]);
+	GET_ADDR("bpf_fentry_test8", addrs[7]);
+
+#undef GET_ADDR
+
+	cookies[0] = 1; /* bpf_fentry_test1 */
+	cookies[1] = 2; /* bpf_fentry_test3 */
+	cookies[2] = 3; /* bpf_fentry_test4 */
+	cookies[3] = 4; /* bpf_fentry_test5 */
+	cookies[4] = 5; /* bpf_fentry_test6 */
+	cookies[5] = 6; /* bpf_fentry_test7 */
+	cookies[6] = 7; /* bpf_fentry_test2 */
+	cookies[7] = 8; /* bpf_fentry_test8 */
+
+	opts.kprobe_multi.addrs = (const unsigned long *) &addrs;
+	opts.kprobe_multi.cnt = ARRAY_SIZE(addrs);
+	opts.kprobe_multi.cookies = (const __u64 *) &cookies;
+	prog_fd = bpf_program__fd(skel->progs.test_kprobe);
+
+	link1_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_KPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link1_fd, 0, "link1_fd"))
+		goto cleanup;
+
+	cookies[0] = 8; /* bpf_fentry_test1 */
+	cookies[1] = 7; /* bpf_fentry_test3 */
+	cookies[2] = 6; /* bpf_fentry_test4 */
+	cookies[3] = 5; /* bpf_fentry_test5 */
+	cookies[4] = 4; /* bpf_fentry_test6 */
+	cookies[5] = 3; /* bpf_fentry_test7 */
+	cookies[6] = 2; /* bpf_fentry_test2 */
+	cookies[7] = 1; /* bpf_fentry_test8 */
+
+	opts.kprobe_multi.flags = BPF_F_KPROBE_MULTI_RETURN;
+	prog_fd = bpf_program__fd(skel->progs.test_kretprobe);
+
+	link2_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_KPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link2_fd, 0, "link2_fd"))
+		goto cleanup;
+
+	kprobe_multi_test_run(skel);
+
+cleanup:
+	close(link1_fd);
+	close(link2_fd);
+	kprobe_multi__destroy(skel);
+}
+
+static void kprobe_multi_attach_api_subtest(void)
+{
+	struct bpf_link *link1 = NULL, *link2 = NULL;
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct kprobe_multi *skel = NULL;
+	const char *syms[8] = {
+		"bpf_fentry_test1",
+		"bpf_fentry_test3",
+		"bpf_fentry_test4",
+		"bpf_fentry_test5",
+		"bpf_fentry_test6",
+		"bpf_fentry_test7",
+		"bpf_fentry_test2",
+		"bpf_fentry_test8",
+	};
+	__u64 cookies[8];
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	skel->bss->test_cookie = true;
+
+	cookies[0] = 1; /* bpf_fentry_test1 */
+	cookies[1] = 2; /* bpf_fentry_test3 */
+	cookies[2] = 3; /* bpf_fentry_test4 */
+	cookies[3] = 4; /* bpf_fentry_test5 */
+	cookies[4] = 5; /* bpf_fentry_test6 */
+	cookies[5] = 6; /* bpf_fentry_test7 */
+	cookies[6] = 7; /* bpf_fentry_test2 */
+	cookies[7] = 8; /* bpf_fentry_test8 */
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	opts.cookies = cookies;
+
+	link1 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe,
+						      NULL, &opts);
+	if (!ASSERT_OK_PTR(link1, "bpf_program__attach_kprobe_multi_opts"))
+		goto cleanup;
+
+	cookies[0] = 8; /* bpf_fentry_test1 */
+	cookies[1] = 7; /* bpf_fentry_test3 */
+	cookies[2] = 6; /* bpf_fentry_test4 */
+	cookies[3] = 5; /* bpf_fentry_test5 */
+	cookies[4] = 4; /* bpf_fentry_test6 */
+	cookies[5] = 3; /* bpf_fentry_test7 */
+	cookies[6] = 2; /* bpf_fentry_test2 */
+	cookies[7] = 1; /* bpf_fentry_test8 */
+
+	opts.retprobe = true;
+
+	link2 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kretprobe,
+						      NULL, &opts);
+	if (!ASSERT_OK_PTR(link2, "bpf_program__attach_kprobe_multi_opts"))
+		goto cleanup;
+
+	kprobe_multi_test_run(skel);
+
+cleanup:
+	bpf_link__destroy(link2);
+	bpf_link__destroy(link1);
+	kprobe_multi__destroy(skel);
+}
+
+/* defined in prog_tests/uprobe_multi_test.c */
+void uprobe_multi_func_1(void);
+void uprobe_multi_func_2(void);
+void uprobe_multi_func_3(void);
+
+static void uprobe_multi_test_run(struct uprobe_multi *skel)
+{
+	skel->bss->uprobe_multi_func_1_addr = (__u64) uprobe_multi_func_1;
+	skel->bss->uprobe_multi_func_2_addr = (__u64) uprobe_multi_func_2;
+	skel->bss->uprobe_multi_func_3_addr = (__u64) uprobe_multi_func_3;
+
+	skel->bss->pid = getpid();
+	skel->bss->test_cookie = true;
+
+	uprobe_multi_func_1();
+	uprobe_multi_func_2();
+	uprobe_multi_func_3();
+
+	ASSERT_EQ(skel->bss->uprobe_multi_func_1_result, 1, "uprobe_multi_func_1_result");
+	ASSERT_EQ(skel->bss->uprobe_multi_func_2_result, 1, "uprobe_multi_func_2_result");
+	ASSERT_EQ(skel->bss->uprobe_multi_func_3_result, 1, "uprobe_multi_func_3_result");
+
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_1_result, 1, "uretprobe_multi_func_1_result");
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_2_result, 1, "uretprobe_multi_func_2_result");
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_3_result, 1, "uretprobe_multi_func_3_result");
+}
+
+static void uprobe_multi_attach_api_subtest(void)
+{
+	struct bpf_link *link1 = NULL, *link2 = NULL;
+	struct uprobe_multi *skel = NULL;
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+	const char *syms[3] = {
+		"uprobe_multi_func_1",
+		"uprobe_multi_func_2",
+		"uprobe_multi_func_3",
+	};
+	__u64 cookies[3];
+
+	cookies[0] = 3; /* uprobe_multi_func_1 */
+	cookies[1] = 1; /* uprobe_multi_func_2 */
+	cookies[2] = 2; /* uprobe_multi_func_3 */
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	opts.cookies = &cookies[0];
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi"))
+		goto cleanup;
+
+	link1 = bpf_program__attach_uprobe_multi(skel->progs.uprobe, -1,
+						 "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link1, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	cookies[0] = 2; /* uprobe_multi_func_1 */
+	cookies[1] = 3; /* uprobe_multi_func_2 */
+	cookies[2] = 1; /* uprobe_multi_func_3 */
+
+	opts.retprobe = true;
+	link2 = bpf_program__attach_uprobe_multi(skel->progs.uretprobe, -1,
+						      "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link2, "bpf_program__attach_uprobe_multi_retprobe"))
+		goto cleanup;
+
+	uprobe_multi_test_run(skel);
+
+cleanup:
+	bpf_link__destroy(link2);
+	bpf_link__destroy(link1);
+	uprobe_multi__destroy(skel);
+}
+
+static void uprobe_subtest(struct test_bpf_cookie *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, opts);
+	struct bpf_link *link1 = NULL, *link2 = NULL;
+	struct bpf_link *retlink1 = NULL, *retlink2 = NULL;
+	ssize_t uprobe_offset;
+
+	uprobe_offset = get_uprobe_offset(&trigger_func);
+	if (!ASSERT_GE(uprobe_offset, 0, "uprobe_offset"))
+		goto cleanup;
+
+	/* attach two uprobes */
+	opts.bpf_cookie = 0x100;
+	opts.retprobe = false;
+	link1 = bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe, 0 /* self pid */,
+						"/proc/self/exe", uprobe_offset, &opts);
+	if (!ASSERT_OK_PTR(link1, "link1"))
+		goto cleanup;
+
+	opts.bpf_cookie = 0x200;
+	opts.retprobe = false;
+	link2 = bpf_program__attach_uprobe_opts(skel->progs.handle_uprobe, -1 /* any pid */,
+						"/proc/self/exe", uprobe_offset, &opts);
+	if (!ASSERT_OK_PTR(link2, "link2"))
+		goto cleanup;
+
+	/* attach two uretprobes */
+	opts.bpf_cookie = 0x1000;
+	opts.retprobe = true;
+	retlink1 = bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe, -1 /* any pid */,
+						   "/proc/self/exe", uprobe_offset, &opts);
+	if (!ASSERT_OK_PTR(retlink1, "retlink1"))
+		goto cleanup;
+
+	opts.bpf_cookie = 0x2000;
+	opts.retprobe = true;
+	retlink2 = bpf_program__attach_uprobe_opts(skel->progs.handle_uretprobe, 0 /* self pid */,
+						   "/proc/self/exe", uprobe_offset, &opts);
+	if (!ASSERT_OK_PTR(retlink2, "retlink2"))
+		goto cleanup;
+
+	/* trigger uprobe && uretprobe */
+	trigger_func();
+
+	ASSERT_EQ(skel->bss->uprobe_res, 0x100 | 0x200, "uprobe_res");
+	ASSERT_EQ(skel->bss->uretprobe_res, 0x1000 | 0x2000, "uretprobe_res");
+
+cleanup:
+	bpf_link__destroy(link1);
+	bpf_link__destroy(link2);
+	bpf_link__destroy(retlink1);
+	bpf_link__destroy(retlink2);
+}
+
+static void tp_subtest(struct test_bpf_cookie *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tracepoint_opts, opts);
+	struct bpf_link *link1 = NULL, *link2 = NULL, *link3 = NULL;
+
+	/* attach first tp prog */
+	opts.bpf_cookie = 0x10000;
+	link1 = bpf_program__attach_tracepoint_opts(skel->progs.handle_tp1,
+						    "syscalls", "sys_enter_nanosleep", &opts);
+	if (!ASSERT_OK_PTR(link1, "link1"))
+		goto cleanup;
+
+	/* attach second tp prog */
+	opts.bpf_cookie = 0x20000;
+	link2 = bpf_program__attach_tracepoint_opts(skel->progs.handle_tp2,
+						    "syscalls", "sys_enter_nanosleep", &opts);
+	if (!ASSERT_OK_PTR(link2, "link2"))
+		goto cleanup;
+
+	/* trigger tracepoints */
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->tp_res, 0x10000 | 0x20000, "tp_res1");
+
+	/* now we detach first prog and will attach third one, which causes
+	 * two internal calls to bpf_prog_array_copy(), shuffling
+	 * bpf_prog_array_items around. We test here that we don't lose track
+	 * of associated bpf_cookies.
+	 */
+	bpf_link__destroy(link1);
+	link1 = NULL;
+	kern_sync_rcu();
+	skel->bss->tp_res = 0;
+
+	/* attach third tp prog */
+	opts.bpf_cookie = 0x40000;
+	link3 = bpf_program__attach_tracepoint_opts(skel->progs.handle_tp3,
+						    "syscalls", "sys_enter_nanosleep", &opts);
+	if (!ASSERT_OK_PTR(link3, "link3"))
+		goto cleanup;
+
+	/* trigger tracepoints */
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->tp_res, 0x20000 | 0x40000, "tp_res2");
+
+cleanup:
+	bpf_link__destroy(link1);
+	bpf_link__destroy(link2);
+	bpf_link__destroy(link3);
+}
+
+static void burn_cpu(void)
+{
+	volatile int j = 0;
+	cpu_set_t cpu_set;
+	int i, err;
+
+	/* generate some branches on cpu 0 */
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	ASSERT_OK(err, "set_thread_affinity");
+
+	/* spin the loop for a while (random high number) */
+	for (i = 0; i < 1000000; ++i)
+		++j;
+}
+
+static void pe_subtest(struct test_bpf_cookie *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_perf_event_opts, opts);
+	struct bpf_link *link = NULL;
+	struct perf_event_attr attr;
+	int pfd = -1;
+
+	/* create perf event */
+	memset(&attr, 0, sizeof(attr));
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.sample_period = 100000;
+	pfd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
+	if (!ASSERT_GE(pfd, 0, "perf_fd"))
+		goto cleanup;
+
+	opts.bpf_cookie = 0x100000;
+	link = bpf_program__attach_perf_event_opts(skel->progs.handle_pe, pfd, &opts);
+	if (!ASSERT_OK_PTR(link, "link1"))
+		goto cleanup;
+
+	burn_cpu(); /* trigger BPF prog */
+
+	ASSERT_EQ(skel->bss->pe_res, 0x100000, "pe_res1");
+
+	/* prevent bpf_link__destroy() closing pfd itself */
+	bpf_link__disconnect(link);
+	/* close BPF link's FD explicitly */
+	close(bpf_link__fd(link));
+	/* free up memory used by struct bpf_link */
+	bpf_link__destroy(link);
+	link = NULL;
+	kern_sync_rcu();
+	skel->bss->pe_res = 0;
+
+	opts.bpf_cookie = 0x200000;
+	link = bpf_program__attach_perf_event_opts(skel->progs.handle_pe, pfd, &opts);
+	if (!ASSERT_OK_PTR(link, "link2"))
+		goto cleanup;
+
+	burn_cpu(); /* trigger BPF prog */
+
+	ASSERT_EQ(skel->bss->pe_res, 0x200000, "pe_res2");
+
+cleanup:
+	close(pfd);
+	bpf_link__destroy(link);
+}
+
+static int verify_tracing_link_info(int fd, u64 cookie)
+{
+	struct bpf_link_info info;
+	int err;
+	u32 len = sizeof(info);
+
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "get_link_info"))
+		return -1;
+
+	if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_TRACING, "link_type"))
+		return -1;
+
+	ASSERT_EQ(info.tracing.cookie, cookie, "tracing_cookie");
+
+	return 0;
+}
+
+static void tracing_subtest(struct test_bpf_cookie *skel)
+{
+	__u64 cookie;
+	int prog_fd, err;
+	int fentry_fd = -1, fexit_fd = -1, fmod_ret_fd = -1;
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	LIBBPF_OPTS(bpf_link_create_opts, link_opts);
+
+	skel->bss->fentry_res = 0;
+	skel->bss->fexit_res = 0;
+
+	cookie = 0x10000000000000L;
+	prog_fd = bpf_program__fd(skel->progs.fentry_test1);
+	link_opts.tracing.cookie = cookie;
+	fentry_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_FENTRY, &link_opts);
+	if (!ASSERT_GE(fentry_fd, 0, "fentry.link_create"))
+		goto cleanup;
+
+	err = verify_tracing_link_info(fentry_fd, cookie);
+	if (!ASSERT_OK(err, "verify_tracing_link_info"))
+		goto cleanup;
+
+	cookie = 0x20000000000000L;
+	prog_fd = bpf_program__fd(skel->progs.fexit_test1);
+	link_opts.tracing.cookie = cookie;
+	fexit_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_FEXIT, &link_opts);
+	if (!ASSERT_GE(fexit_fd, 0, "fexit.link_create"))
+		goto cleanup;
+
+	cookie = 0x30000000000000L;
+	prog_fd = bpf_program__fd(skel->progs.fmod_ret_test);
+	link_opts.tracing.cookie = cookie;
+	fmod_ret_fd = bpf_link_create(prog_fd, 0, BPF_MODIFY_RETURN, &link_opts);
+	if (!ASSERT_GE(fmod_ret_fd, 0, "fmod_ret.link_create"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.fentry_test1);
+	bpf_prog_test_run_opts(prog_fd, &opts);
+
+	prog_fd = bpf_program__fd(skel->progs.fmod_ret_test);
+	bpf_prog_test_run_opts(prog_fd, &opts);
+
+	ASSERT_EQ(skel->bss->fentry_res, 0x10000000000000L, "fentry_res");
+	ASSERT_EQ(skel->bss->fexit_res, 0x20000000000000L, "fexit_res");
+	ASSERT_EQ(skel->bss->fmod_ret_res, 0x30000000000000L, "fmod_ret_res");
+
+cleanup:
+	if (fentry_fd >= 0)
+		close(fentry_fd);
+	if (fexit_fd >= 0)
+		close(fexit_fd);
+	if (fmod_ret_fd >= 0)
+		close(fmod_ret_fd);
+}
+
+int stack_mprotect(void);
+
+static void lsm_subtest(struct test_bpf_cookie *skel)
+{
+	__u64 cookie;
+	int prog_fd;
+	int lsm_fd = -1;
+	LIBBPF_OPTS(bpf_link_create_opts, link_opts);
+	int err;
+
+	skel->bss->lsm_res = 0;
+
+	cookie = 0x90000000000090L;
+	prog_fd = bpf_program__fd(skel->progs.test_int_hook);
+	link_opts.tracing.cookie = cookie;
+	lsm_fd = bpf_link_create(prog_fd, 0, BPF_LSM_MAC, &link_opts);
+	if (!ASSERT_GE(lsm_fd, 0, "lsm.link_create"))
+		goto cleanup;
+
+	err = stack_mprotect();
+	if (!ASSERT_EQ(err, -1, "stack_mprotect") ||
+	    !ASSERT_EQ(errno, EPERM, "stack_mprotect"))
+		goto cleanup;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->lsm_res, 0x90000000000090L, "fentry_res");
+
+cleanup:
+	if (lsm_fd >= 0)
+		close(lsm_fd);
+}
+
+static void tp_btf_subtest(struct test_bpf_cookie *skel)
+{
+	__u64 cookie;
+	int prog_fd, link_fd = -1;
+	struct bpf_link *link = NULL;
+	LIBBPF_OPTS(bpf_link_create_opts, link_opts);
+	LIBBPF_OPTS(bpf_raw_tp_opts, raw_tp_opts);
+	LIBBPF_OPTS(bpf_trace_opts, trace_opts);
+
+	/* There are three different ways to attach tp_btf (BTF-aware raw
+	 * tracepoint) programs. Let's test all of them.
+	 */
+	prog_fd = bpf_program__fd(skel->progs.handle_tp_btf);
+
+	/* low-level BPF_RAW_TRACEPOINT_OPEN command wrapper */
+	skel->bss->tp_btf_res = 0;
+
+	raw_tp_opts.cookie = cookie = 0x11000000000000L;
+	link_fd = bpf_raw_tracepoint_open_opts(prog_fd, &raw_tp_opts);
+	if (!ASSERT_GE(link_fd, 0, "bpf_raw_tracepoint_open_opts"))
+		goto cleanup;
+
+	usleep(1); /* trigger */
+	close(link_fd); /* detach */
+	link_fd = -1;
+
+	ASSERT_EQ(skel->bss->tp_btf_res, cookie, "raw_tp_open_res");
+
+	/* low-level generic bpf_link_create() API */
+	skel->bss->tp_btf_res = 0;
+
+	link_opts.tracing.cookie = cookie = 0x22000000000000L;
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_RAW_TP, &link_opts);
+	if (!ASSERT_GE(link_fd, 0, "bpf_link_create"))
+		goto cleanup;
+
+	usleep(1); /* trigger */
+	close(link_fd); /* detach */
+	link_fd = -1;
+
+	ASSERT_EQ(skel->bss->tp_btf_res, cookie, "link_create_res");
+
+	/* high-level bpf_link-based bpf_program__attach_trace_opts() API */
+	skel->bss->tp_btf_res = 0;
+
+	trace_opts.cookie = cookie = 0x33000000000000L;
+	link = bpf_program__attach_trace_opts(skel->progs.handle_tp_btf, &trace_opts);
+	if (!ASSERT_OK_PTR(link, "attach_trace_opts"))
+		goto cleanup;
+
+	usleep(1); /* trigger */
+	bpf_link__destroy(link); /* detach */
+	link = NULL;
+
+	ASSERT_EQ(skel->bss->tp_btf_res, cookie, "attach_trace_opts_res");
+
+cleanup:
+	if (link_fd >= 0)
+		close(link_fd);
+	bpf_link__destroy(link);
+}
+
+static int verify_raw_tp_link_info(int fd, u64 cookie)
+{
+	struct bpf_link_info info;
+	int err;
+	u32 len = sizeof(info);
+
+	memset(&info, 0, sizeof(info));
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "get_link_info"))
+		return -1;
+
+	if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_RAW_TRACEPOINT, "link_type"))
+		return -1;
+
+	ASSERT_EQ(info.raw_tracepoint.cookie, cookie, "raw_tp_cookie");
+
+	return 0;
+}
+
+static void raw_tp_subtest(struct test_bpf_cookie *skel)
+{
+	__u64 cookie;
+	int err, prog_fd, link_fd = -1;
+	struct bpf_link *link = NULL;
+	LIBBPF_OPTS(bpf_raw_tp_opts, raw_tp_opts);
+	LIBBPF_OPTS(bpf_raw_tracepoint_opts, opts);
+
+	/* There are two different ways to attach raw_tp programs */
+	prog_fd = bpf_program__fd(skel->progs.handle_raw_tp);
+
+	/* low-level BPF_RAW_TRACEPOINT_OPEN command wrapper */
+	skel->bss->raw_tp_res = 0;
+
+	raw_tp_opts.tp_name = "sys_enter";
+	raw_tp_opts.cookie = cookie = 0x55000000000000L;
+	link_fd = bpf_raw_tracepoint_open_opts(prog_fd, &raw_tp_opts);
+	if (!ASSERT_GE(link_fd, 0, "bpf_raw_tracepoint_open_opts"))
+		goto cleanup;
+
+	usleep(1); /* trigger */
+
+	err = verify_raw_tp_link_info(link_fd, cookie);
+	if (!ASSERT_OK(err, "verify_raw_tp_link_info"))
+		goto cleanup;
+
+	close(link_fd); /* detach */
+	link_fd = -1;
+
+	ASSERT_EQ(skel->bss->raw_tp_res, cookie, "raw_tp_open_res");
+
+	/* high-level bpf_link-based bpf_program__attach_raw_tracepoint_opts() API */
+	skel->bss->raw_tp_res = 0;
+
+	opts.cookie = cookie = 0x66000000000000L;
+	link = bpf_program__attach_raw_tracepoint_opts(skel->progs.handle_raw_tp,
+						       "sys_enter", &opts);
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp_opts"))
+		goto cleanup;
+
+	usleep(1); /* trigger */
+	bpf_link__destroy(link); /* detach */
+	link = NULL;
+
+	ASSERT_EQ(skel->bss->raw_tp_res, cookie, "attach_raw_tp_opts_res");
+
+cleanup:
+	if (link_fd >= 0)
+		close(link_fd);
+	bpf_link__destroy(link);
+}
+
+void test_bpf_cookie(void)
+{
+	struct test_bpf_cookie *skel;
+
+	skel = test_bpf_cookie__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->my_tid = sys_gettid();
+
+	if (test__start_subtest("kprobe"))
+		kprobe_subtest(skel);
+	if (test__start_subtest("multi_kprobe_link_api"))
+		kprobe_multi_link_api_subtest();
+	if (test__start_subtest("multi_kprobe_attach_api"))
+		kprobe_multi_attach_api_subtest();
+	if (test__start_subtest("uprobe"))
+		uprobe_subtest(skel);
+	if (test__start_subtest("multi_uprobe_attach_api"))
+		uprobe_multi_attach_api_subtest();
+	if (test__start_subtest("tracepoint"))
+		tp_subtest(skel);
+	if (test__start_subtest("perf_event"))
+		pe_subtest(skel);
+	if (test__start_subtest("trampoline"))
+		tracing_subtest(skel);
+	if (test__start_subtest("lsm"))
+		lsm_subtest(skel);
+	if (test__start_subtest("tp_btf"))
+		tp_btf_subtest(skel);
+	if (test__start_subtest("raw_tp"))
+		raw_tp_subtest(skel);
+	test_bpf_cookie__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_gotox.c b/tools/testing/selftests/bpf/prog_tests/bpf_gotox.c
new file mode 100644
index 000000000000..d138cc7b1bda
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_gotox.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in6.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+
+#include <sys/syscall.h>
+#include <bpf/bpf.h>
+
+#include "bpf_gotox.skel.h"
+
+static void __test_run(struct bpf_program *prog, void *ctx_in, size_t ctx_size_in)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+			    .ctx_in = ctx_in,
+			    .ctx_size_in = ctx_size_in,
+		   );
+	int err, prog_fd;
+
+	prog_fd = bpf_program__fd(prog);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run_opts err");
+}
+
+static void __subtest(struct bpf_gotox *skel, void (*check)(struct bpf_gotox *))
+{
+	if (skel->data->skip)
+		test__skip();
+	else
+		check(skel);
+}
+
+static void check_simple(struct bpf_gotox *skel,
+			 struct bpf_program *prog,
+			 __u64 ctx_in,
+			 __u64 expected)
+{
+	skel->bss->ret_user = 0;
+
+	__test_run(prog, &ctx_in, sizeof(ctx_in));
+
+	if (!ASSERT_EQ(skel->bss->ret_user, expected, "skel->bss->ret_user"))
+		return;
+}
+
+static void check_simple_fentry(struct bpf_gotox *skel,
+				struct bpf_program *prog,
+				__u64 ctx_in,
+				__u64 expected)
+{
+	skel->bss->in_user = ctx_in;
+	skel->bss->ret_user = 0;
+
+	/* trigger */
+	usleep(1);
+
+	if (!ASSERT_EQ(skel->bss->ret_user, expected, "skel->bss->ret_user"))
+		return;
+}
+
+/* validate that for two loads of the same jump table libbpf generates only one map */
+static void check_one_map_two_jumps(struct bpf_gotox *skel)
+{
+	struct bpf_prog_info prog_info;
+	struct bpf_map_info map_info;
+	__u32 len;
+	__u32 map_ids[16];
+	int prog_fd, map_fd;
+	int ret;
+	int i;
+	bool seen = false;
+
+	memset(&prog_info, 0, sizeof(prog_info));
+	prog_info.map_ids = (long)map_ids;
+	prog_info.nr_map_ids = ARRAY_SIZE(map_ids);
+	prog_fd = bpf_program__fd(skel->progs.one_map_two_jumps);
+	if (!ASSERT_GE(prog_fd, 0, "bpf_program__fd(one_map_two_jumps)"))
+		return;
+
+	len = sizeof(prog_info);
+	ret = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &len);
+	if (!ASSERT_OK(ret, "bpf_obj_get_info_by_fd(prog_fd)"))
+		return;
+
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		map_fd  = bpf_map_get_fd_by_id(map_ids[i]);
+		if (!ASSERT_GE(map_fd, 0, "bpf_map_get_fd_by_id"))
+			return;
+
+		len = sizeof(map_info);
+		memset(&map_info, 0, len);
+		ret = bpf_obj_get_info_by_fd(map_fd, &map_info, &len);
+		if (!ASSERT_OK(ret, "bpf_obj_get_info_by_fd(map_fd)")) {
+			close(map_fd);
+			return;
+		}
+
+		if (map_info.type == BPF_MAP_TYPE_INSN_ARRAY) {
+			if (!ASSERT_EQ(seen, false, "more than one INSN_ARRAY map")) {
+				close(map_fd);
+				return;
+			}
+			seen = true;
+		}
+		close(map_fd);
+	}
+
+	ASSERT_EQ(seen, true, "no INSN_ARRAY map");
+}
+
+static void check_one_switch(struct bpf_gotox *skel)
+{
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.one_switch, in[i], out[i]);
+}
+
+static void check_one_switch_non_zero_sec_off(struct bpf_gotox *skel)
+{
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.one_switch_non_zero_sec_off, in[i], out[i]);
+}
+
+static void check_two_switches(struct bpf_gotox *skel)
+{
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[] = {103, 104, 107, 205, 115, 1019, 1019};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.two_switches, in[i], out[i]);
+}
+
+static void check_big_jump_table(struct bpf_gotox *skel)
+{
+	__u64 in[]  = {0, 11, 27, 31, 22, 45, 99};
+	__u64 out[] = {2,  3,  4,  5, 19, 19, 19};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.big_jump_table, in[i], out[i]);
+}
+
+static void check_one_jump_two_maps(struct bpf_gotox *skel)
+{
+	__u64 in[]  = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[] = {12, 15, 7 , 15, 12, 15, 15};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.one_jump_two_maps, in[i], out[i]);
+}
+
+static void check_static_global(struct bpf_gotox *skel)
+{
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.use_static_global1, in[i], out[i]);
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.use_static_global2, in[i], out[i]);
+}
+
+static void check_nonstatic_global(struct bpf_gotox *skel)
+{
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.use_nonstatic_global1, in[i], out[i]);
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple(skel, skel->progs.use_nonstatic_global2, in[i], out[i]);
+}
+
+static void check_other_sec(struct bpf_gotox *skel)
+{
+	struct bpf_link *link;
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	link = bpf_program__attach(skel->progs.simple_test_other_sec);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple_fentry(skel, skel->progs.simple_test_other_sec, in[i], out[i]);
+
+	bpf_link__destroy(link);
+}
+
+static void check_static_global_other_sec(struct bpf_gotox *skel)
+{
+	struct bpf_link *link;
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	link = bpf_program__attach(skel->progs.use_static_global_other_sec);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple_fentry(skel, skel->progs.use_static_global_other_sec, in[i], out[i]);
+
+	bpf_link__destroy(link);
+}
+
+static void check_nonstatic_global_other_sec(struct bpf_gotox *skel)
+{
+	struct bpf_link *link;
+	__u64 in[]   = {0, 1, 2, 3, 4,  5, 77};
+	__u64 out[]  = {2, 3, 4, 5, 7, 19, 19};
+	int i;
+
+	link = bpf_program__attach(skel->progs.use_nonstatic_global_other_sec);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(in); i++)
+		check_simple_fentry(skel, skel->progs.use_nonstatic_global_other_sec, in[i], out[i]);
+
+	bpf_link__destroy(link);
+}
+
+void test_bpf_gotox(void)
+{
+	struct bpf_gotox *skel;
+	int ret;
+
+	skel = bpf_gotox__open();
+	if (!ASSERT_NEQ(skel, NULL, "bpf_gotox__open"))
+		return;
+
+	ret = bpf_gotox__load(skel);
+	if (!ASSERT_OK(ret, "bpf_gotox__load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	if (test__start_subtest("one-switch"))
+		__subtest(skel, check_one_switch);
+
+	if (test__start_subtest("one-switch-non-zero-sec-offset"))
+		__subtest(skel, check_one_switch_non_zero_sec_off);
+
+	if (test__start_subtest("two-switches"))
+		__subtest(skel, check_two_switches);
+
+	if (test__start_subtest("big-jump-table"))
+		__subtest(skel, check_big_jump_table);
+
+	if (test__start_subtest("static-global"))
+		__subtest(skel, check_static_global);
+
+	if (test__start_subtest("nonstatic-global"))
+		__subtest(skel, check_nonstatic_global);
+
+	if (test__start_subtest("other-sec"))
+		__subtest(skel, check_other_sec);
+
+	if (test__start_subtest("static-global-other-sec"))
+		__subtest(skel, check_static_global_other_sec);
+
+	if (test__start_subtest("nonstatic-global-other-sec"))
+		__subtest(skel, check_nonstatic_global_other_sec);
+
+	if (test__start_subtest("one-jump-two-maps"))
+		__subtest(skel, check_one_jump_two_maps);
+
+	if (test__start_subtest("one-map-two-jumps"))
+		__subtest(skel, check_one_map_two_jumps);
+
+	bpf_gotox__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_insn_array.c b/tools/testing/selftests/bpf/prog_tests/bpf_insn_array.c
new file mode 100644
index 000000000000..269870bec941
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_insn_array.c
@@ -0,0 +1,504 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <bpf/bpf.h>
+#include <test_progs.h>
+
+#ifdef __x86_64__
+static int map_create(__u32 map_type, __u32 max_entries)
+{
+	const char *map_name = "insn_array";
+	__u32 key_size = 4;
+	__u32 value_size = sizeof(struct bpf_insn_array_value);
+
+	return bpf_map_create(map_type, map_name, key_size, value_size, max_entries, NULL);
+}
+
+static int prog_load(struct bpf_insn *insns, __u32 insn_cnt, int *fd_array, __u32 fd_array_cnt)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+
+	opts.fd_array = fd_array;
+	opts.fd_array_cnt = fd_array_cnt;
+
+	return bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "GPL", insns, insn_cnt, &opts);
+}
+
+static void __check_success(struct bpf_insn *insns, __u32 insn_cnt, __u32 *map_in, __u32 *map_out)
+{
+	struct bpf_insn_array_value val = {};
+	int prog_fd = -1, map_fd, i;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, insn_cnt);
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	for (i = 0; i < insn_cnt; i++) {
+		val.orig_off = map_in[i];
+		if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &i, &val, 0), 0, "bpf_map_update_elem"))
+			goto cleanup;
+	}
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, insn_cnt, &map_fd, 1);
+	if (!ASSERT_GE(prog_fd, 0, "bpf(BPF_PROG_LOAD)"))
+		goto cleanup;
+
+	for (i = 0; i < insn_cnt; i++) {
+		char buf[64];
+
+		if (!ASSERT_EQ(bpf_map_lookup_elem(map_fd, &i, &val), 0, "bpf_map_lookup_elem"))
+			goto cleanup;
+
+		snprintf(buf, sizeof(buf), "val.xlated_off should be equal map_out[%d]", i);
+		ASSERT_EQ(val.xlated_off, map_out[i], buf);
+	}
+
+cleanup:
+	close(prog_fd);
+	close(map_fd);
+}
+
+/*
+ * Load a program, which will not be anyhow mangled by the verifier.  Add an
+ * insn_array map pointing to every instruction. Check that it hasn't changed
+ * after the program load.
+ */
+static void check_one_to_one_mapping(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 4),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	__u32 map_in[] = {0, 1, 2, 3, 4, 5};
+	__u32 map_out[] = {0, 1, 2, 3, 4, 5};
+
+	__check_success(insns, ARRAY_SIZE(insns), map_in, map_out);
+}
+
+/*
+ * Load a program with two patches (get jiffies, for simplicity). Add an
+ * insn_array map pointing to every instruction. Check how it was changed
+ * after the program load.
+ */
+static void check_simple(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	__u32 map_in[] = {0, 1, 2, 3, 4, 5};
+	__u32 map_out[] = {0, 1, 4, 5, 8, 9};
+
+	__check_success(insns, ARRAY_SIZE(insns), map_in, map_out);
+}
+
+/*
+ * Verifier can delete code in two cases: nops & dead code. From insn
+ * array's point of view, the two cases are the same, so test using
+ * the simplest method: by loading some nops
+ */
+static void check_deletions(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	__u32 map_in[] = {0, 1, 2, 3, 4, 5};
+	__u32 map_out[] = {0, -1, 1, -1, 2, 3};
+
+	__check_success(insns, ARRAY_SIZE(insns), map_in, map_out);
+}
+
+/*
+ * Same test as check_deletions, but also add code which adds instructions
+ */
+static void check_deletions_with_functions(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0), /* nop */
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	};
+	__u32 map_in[] =  { 0, 1,  2, 3, 4, 5, /* func */  6, 7,  8, 9, 10};
+	__u32 map_out[] = {-1, 0, -1, 3, 4, 5, /* func */ -1, 6, -1, 9, 10};
+
+	__check_success(insns, ARRAY_SIZE(insns), map_in, map_out);
+}
+
+/*
+ * Try to load a program with a map which points to outside of the program
+ */
+static void check_out_of_bounds_index(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 4),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd, map_fd;
+	struct bpf_insn_array_value val = {};
+	int key;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, 1);
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	key = 0;
+	val.orig_off = ARRAY_SIZE(insns); /* too big */
+	if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &key, &val, 0), 0, "bpf_map_update_elem"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_EQ(prog_fd, -EINVAL, "program should have been rejected (prog_fd != -EINVAL)")) {
+		close(prog_fd);
+		goto cleanup;
+	}
+
+cleanup:
+	close(map_fd);
+}
+
+/*
+ * Try to load a program with a map which points to the middle of 16-bit insn
+ */
+static void check_mid_insn_index(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_LD_IMM64(BPF_REG_0, 0), /* 2 x 8 */
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd, map_fd;
+	struct bpf_insn_array_value val = {};
+	int key;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, 1);
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	key = 0;
+	val.orig_off = 1; /* middle of 16-byte instruction */
+	if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &key, &val, 0), 0, "bpf_map_update_elem"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_EQ(prog_fd, -EINVAL, "program should have been rejected (prog_fd != -EINVAL)")) {
+		close(prog_fd);
+		goto cleanup;
+	}
+
+cleanup:
+	close(map_fd);
+}
+
+static void check_incorrect_index(void)
+{
+	check_out_of_bounds_index();
+	check_mid_insn_index();
+}
+
+static int set_bpf_jit_harden(char *level)
+{
+	char old_level;
+	int err = -1;
+	int fd = -1;
+
+	fd = open("/proc/sys/net/core/bpf_jit_harden", O_RDWR | O_NONBLOCK);
+	if (fd < 0) {
+		ASSERT_FAIL("open .../bpf_jit_harden returned %d (errno=%d)", fd, errno);
+		return -1;
+	}
+
+	err = read(fd, &old_level, 1);
+	if (err != 1) {
+		ASSERT_FAIL("read from .../bpf_jit_harden returned %d (errno=%d)", err, errno);
+		err = -1;
+		goto end;
+	}
+
+	lseek(fd, 0, SEEK_SET);
+
+	err = write(fd, level, 1);
+	if (err != 1) {
+		ASSERT_FAIL("write to .../bpf_jit_harden returned %d (errno=%d)", err, errno);
+		err = -1;
+		goto end;
+	}
+
+	err = 0;
+	*level = old_level;
+end:
+	if (fd >= 0)
+		close(fd);
+	return err;
+}
+
+static void check_blindness(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 4),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd = -1, map_fd;
+	struct bpf_insn_array_value val = {};
+	char bpf_jit_harden = '@'; /* non-exizsting value */
+	int i;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, ARRAY_SIZE(insns));
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		val.orig_off = i;
+		if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &i, &val, 0), 0, "bpf_map_update_elem"))
+			goto cleanup;
+	}
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	bpf_jit_harden = '2';
+	if (set_bpf_jit_harden(&bpf_jit_harden)) {
+		bpf_jit_harden = '@'; /* open, read or write failed => no write was done */
+		goto cleanup;
+	}
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_GE(prog_fd, 0, "bpf(BPF_PROG_LOAD)"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		char fmt[32];
+
+		if (!ASSERT_EQ(bpf_map_lookup_elem(map_fd, &i, &val), 0, "bpf_map_lookup_elem"))
+			goto cleanup;
+
+		snprintf(fmt, sizeof(fmt), "val should be equal 3*%d", i);
+		ASSERT_EQ(val.xlated_off, i * 3, fmt);
+	}
+
+cleanup:
+	/* restore the old one */
+	if (bpf_jit_harden != '@')
+		set_bpf_jit_harden(&bpf_jit_harden);
+
+	close(prog_fd);
+	close(map_fd);
+}
+
+/* Once map was initialized, it should be frozen */
+static void check_load_unfrozen_map(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd = -1, map_fd;
+	struct bpf_insn_array_value val = {};
+	int i;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, ARRAY_SIZE(insns));
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		val.orig_off = i;
+		if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &i, &val, 0), 0, "bpf_map_update_elem"))
+			goto cleanup;
+	}
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_EQ(prog_fd, -EINVAL, "program should have been rejected (prog_fd != -EINVAL)"))
+		goto cleanup;
+
+	/* correctness: now freeze the map, the program should load fine */
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_GE(prog_fd, 0, "bpf(BPF_PROG_LOAD)"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		if (!ASSERT_EQ(bpf_map_lookup_elem(map_fd, &i, &val), 0, "bpf_map_lookup_elem"))
+			goto cleanup;
+
+		ASSERT_EQ(val.xlated_off, i, "val should be equal i");
+	}
+
+cleanup:
+	close(prog_fd);
+	close(map_fd);
+}
+
+/* Map can be used only by one BPF program */
+static void check_no_map_reuse(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd = -1, map_fd, extra_fd = -1;
+	struct bpf_insn_array_value val = {};
+	int i;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, ARRAY_SIZE(insns));
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		val.orig_off = i;
+		if (!ASSERT_EQ(bpf_map_update_elem(map_fd, &i, &val, 0), 0, "bpf_map_update_elem"))
+			goto cleanup;
+	}
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_GE(prog_fd, 0, "bpf(BPF_PROG_LOAD)"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(insns); i++) {
+		if (!ASSERT_EQ(bpf_map_lookup_elem(map_fd, &i, &val), 0, "bpf_map_lookup_elem"))
+			goto cleanup;
+
+		ASSERT_EQ(val.xlated_off, i, "val should be equal i");
+	}
+
+	extra_fd = prog_load(insns, ARRAY_SIZE(insns), &map_fd, 1);
+	if (!ASSERT_EQ(extra_fd, -EBUSY, "program should have been rejected (extra_fd != -EBUSY)"))
+		goto cleanup;
+
+	/* correctness: check that prog is still loadable without fd_array */
+	extra_fd = prog_load(insns, ARRAY_SIZE(insns), NULL, 0);
+	if (!ASSERT_GE(extra_fd, 0, "bpf(BPF_PROG_LOAD): expected no error"))
+		goto cleanup;
+
+cleanup:
+	close(extra_fd);
+	close(prog_fd);
+	close(map_fd);
+}
+
+static void check_bpf_no_lookup(void)
+{
+	struct bpf_insn insns[] = {
+		BPF_LD_MAP_FD(BPF_REG_1, 0),
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_EXIT_INSN(),
+	};
+	int prog_fd = -1, map_fd;
+
+	map_fd = map_create(BPF_MAP_TYPE_INSN_ARRAY, 1);
+	if (!ASSERT_GE(map_fd, 0, "map_create"))
+		return;
+
+	insns[0].imm = map_fd;
+
+	if (!ASSERT_EQ(bpf_map_freeze(map_fd), 0, "bpf_map_freeze"))
+		goto cleanup;
+
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), NULL, 0);
+	if (!ASSERT_EQ(prog_fd, -EINVAL, "program should have been rejected (prog_fd != -EINVAL)"))
+		goto cleanup;
+
+	/* correctness: check that prog is still loadable with normal map */
+	close(map_fd);
+	map_fd = map_create(BPF_MAP_TYPE_ARRAY, 1);
+	insns[0].imm = map_fd;
+	prog_fd = prog_load(insns, ARRAY_SIZE(insns), NULL, 0);
+	if (!ASSERT_GE(prog_fd, 0, "bpf(BPF_PROG_LOAD)"))
+		goto cleanup;
+
+cleanup:
+	close(prog_fd);
+	close(map_fd);
+}
+
+static void check_bpf_side(void)
+{
+	check_bpf_no_lookup();
+}
+
+static void __test_bpf_insn_array(void)
+{
+	/* Test if offsets are adjusted properly */
+
+	if (test__start_subtest("one2one"))
+		check_one_to_one_mapping();
+
+	if (test__start_subtest("simple"))
+		check_simple();
+
+	if (test__start_subtest("deletions"))
+		check_deletions();
+
+	if (test__start_subtest("deletions-with-functions"))
+		check_deletions_with_functions();
+
+	if (test__start_subtest("blindness"))
+		check_blindness();
+
+	/* Check all kinds of operations and related restrictions */
+
+	if (test__start_subtest("incorrect-index"))
+		check_incorrect_index();
+
+	if (test__start_subtest("load-unfrozen-map"))
+		check_load_unfrozen_map();
+
+	if (test__start_subtest("no-map-reuse"))
+		check_no_map_reuse();
+
+	if (test__start_subtest("bpf-side-ops"))
+		check_bpf_side();
+}
+#else
+static void __test_bpf_insn_array(void)
+{
+	test__skip();
+}
+#endif
+
+void test_bpf_insn_array(void)
+{
+	__test_bpf_insn_array();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
new file mode 100644
index 000000000000..5225d69bf79b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -0,0 +1,1798 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <task_local_storage_helpers.h>
+#include "bpf_iter_ipv6_route.skel.h"
+#include "bpf_iter_netlink.skel.h"
+#include "bpf_iter_bpf_map.skel.h"
+#include "bpf_iter_tasks.skel.h"
+#include "bpf_iter_task_stack.skel.h"
+#include "bpf_iter_task_file.skel.h"
+#include "bpf_iter_task_vmas.skel.h"
+#include "bpf_iter_task_btf.skel.h"
+#include "bpf_iter_tcp4.skel.h"
+#include "bpf_iter_tcp6.skel.h"
+#include "bpf_iter_udp4.skel.h"
+#include "bpf_iter_udp6.skel.h"
+#include "bpf_iter_unix.skel.h"
+#include "bpf_iter_vma_offset.skel.h"
+#include "bpf_iter_test_kern1.skel.h"
+#include "bpf_iter_test_kern2.skel.h"
+#include "bpf_iter_test_kern3.skel.h"
+#include "bpf_iter_test_kern4.skel.h"
+#include "bpf_iter_bpf_hash_map.skel.h"
+#include "bpf_iter_bpf_percpu_hash_map.skel.h"
+#include "bpf_iter_bpf_array_map.skel.h"
+#include "bpf_iter_bpf_percpu_array_map.skel.h"
+#include "bpf_iter_bpf_sk_storage_helpers.skel.h"
+#include "bpf_iter_bpf_sk_storage_map.skel.h"
+#include "bpf_iter_test_kern5.skel.h"
+#include "bpf_iter_test_kern6.skel.h"
+#include "bpf_iter_bpf_link.skel.h"
+#include "bpf_iter_ksym.skel.h"
+#include "bpf_iter_sockmap.skel.h"
+
+static void test_btf_id_or_null(void)
+{
+	struct bpf_iter_test_kern3 *skel;
+
+	skel = bpf_iter_test_kern3__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "bpf_iter_test_kern3__open_and_load")) {
+		bpf_iter_test_kern3__destroy(skel);
+		return;
+	}
+}
+
+static void do_dummy_read_opts(struct bpf_program *prog, struct bpf_iter_attach_opts *opts)
+{
+	struct bpf_link *link;
+	char buf[16] = {};
+	int iter_fd, len;
+
+	link = bpf_program__attach_iter(prog, opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* not check contents, but ensure read() ends without error */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	ASSERT_GE(len, 0, "read");
+
+	close(iter_fd);
+
+free_link:
+	bpf_link__destroy(link);
+}
+
+static void do_dummy_read(struct bpf_program *prog)
+{
+	do_dummy_read_opts(prog, NULL);
+}
+
+static void do_read_map_iter_fd(struct bpf_object_skeleton **skel, struct bpf_program *prog,
+				struct bpf_map *map)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+	char buf[16] = {};
+	int iter_fd, len;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = bpf_map__fd(map);
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(prog, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_map_iter"))
+		return;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_map_iter")) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	/* Close link and map fd prematurely */
+	bpf_link__destroy(link);
+	bpf_object__destroy_skeleton(*skel);
+	*skel = NULL;
+
+	/* Try to let map free work to run first if map is freed */
+	usleep(100);
+	/* Memory used by both sock map and sock local storage map are
+	 * freed after two synchronize_rcu() calls, so wait for it
+	 */
+	kern_sync_rcu();
+	kern_sync_rcu();
+
+	/* Read after both map fd and link fd are closed */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	ASSERT_GE(len, 0, "read_iterator");
+
+	close(iter_fd);
+}
+
+static int read_fd_into_buffer(int fd, char *buf, int size)
+{
+	int bufleft = size;
+	int len;
+
+	do {
+		len = read(fd, buf, bufleft);
+		if (len > 0) {
+			buf += len;
+			bufleft -= len;
+		}
+	} while (len > 0);
+
+	return len < 0 ? len : size - bufleft;
+}
+
+static void test_ipv6_route(void)
+{
+	struct bpf_iter_ipv6_route *skel;
+
+	skel = bpf_iter_ipv6_route__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_ipv6_route__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_ipv6_route);
+
+	bpf_iter_ipv6_route__destroy(skel);
+}
+
+static void test_netlink(void)
+{
+	struct bpf_iter_netlink *skel;
+
+	skel = bpf_iter_netlink__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_netlink__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_netlink);
+
+	bpf_iter_netlink__destroy(skel);
+}
+
+static void test_bpf_map(void)
+{
+	struct bpf_iter_bpf_map *skel;
+
+	skel = bpf_iter_bpf_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_map__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_bpf_map);
+
+	bpf_iter_bpf_map__destroy(skel);
+}
+
+static void check_bpf_link_info(const struct bpf_program *prog)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct bpf_link_info info = {};
+	struct bpf_link *link;
+	__u32 info_len;
+	int err;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.tid = getpid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	link = bpf_program__attach_iter(prog, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return;
+
+	info_len = sizeof(info);
+	err = bpf_link_get_info_by_fd(bpf_link__fd(link), &info, &info_len);
+	ASSERT_OK(err, "bpf_link_get_info_by_fd");
+	ASSERT_EQ(info.iter.task.tid, getpid(), "check_task_tid");
+
+	bpf_link__destroy(link);
+}
+
+static pthread_mutex_t do_nothing_mutex;
+
+static void *do_nothing_wait(void *arg)
+{
+	pthread_mutex_lock(&do_nothing_mutex);
+	pthread_mutex_unlock(&do_nothing_mutex);
+
+	pthread_exit(arg);
+}
+
+static void test_task_common_nocheck(struct bpf_iter_attach_opts *opts,
+				     int *num_unknown, int *num_known)
+{
+	struct bpf_iter_tasks *skel;
+	pthread_t thread_id;
+	void *ret;
+
+	skel = bpf_iter_tasks__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_tasks__open_and_load"))
+		return;
+
+	ASSERT_OK(pthread_mutex_lock(&do_nothing_mutex), "pthread_mutex_lock");
+
+	ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing_wait, NULL),
+		  "pthread_create");
+
+	skel->bss->tid = sys_gettid();
+
+	do_dummy_read_opts(skel->progs.dump_task, opts);
+
+	*num_unknown = skel->bss->num_unknown_tid;
+	*num_known = skel->bss->num_known_tid;
+
+	ASSERT_OK(pthread_mutex_unlock(&do_nothing_mutex), "pthread_mutex_unlock");
+	ASSERT_FALSE(pthread_join(thread_id, &ret) || ret != NULL,
+		     "pthread_join");
+
+	bpf_iter_tasks__destroy(skel);
+}
+
+static void test_task_common(struct bpf_iter_attach_opts *opts, int num_unknown, int num_known)
+{
+	int num_unknown_tid, num_known_tid;
+
+	test_task_common_nocheck(opts, &num_unknown_tid, &num_known_tid);
+	ASSERT_EQ(num_unknown_tid, num_unknown, "check_num_unknown_tid");
+	ASSERT_EQ(num_known_tid, num_known, "check_num_known_tid");
+}
+
+static void *run_test_task_tid(void *arg)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	int num_unknown_tid, num_known_tid;
+
+	ASSERT_NEQ(getpid(), sys_gettid(), "check_new_thread_id");
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.tid = sys_gettid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	test_task_common(&opts, 0, 1);
+
+	linfo.task.tid = 0;
+	linfo.task.pid = getpid();
+	/* This includes the parent thread, this thread, watchdog timer thread
+	 * and the do_nothing_wait thread
+	 */
+	test_task_common(&opts, 3, 1);
+
+	test_task_common_nocheck(NULL, &num_unknown_tid, &num_known_tid);
+	ASSERT_GT(num_unknown_tid, 2, "check_num_unknown_tid");
+	ASSERT_EQ(num_known_tid, 1, "check_num_known_tid");
+
+	return NULL;
+}
+
+static void test_task_tid(void)
+{
+	pthread_t thread_id;
+
+	/* Create a new thread so pid and tid aren't the same */
+	ASSERT_OK(pthread_create(&thread_id, NULL, &run_test_task_tid, NULL),
+		  "pthread_create");
+	ASSERT_FALSE(pthread_join(thread_id, NULL), "pthread_join");
+}
+
+static void test_task_pid(void)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.pid = getpid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	test_task_common(&opts, 2, 1);
+}
+
+static void test_task_pidfd(void)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	int pidfd;
+
+	pidfd = sys_pidfd_open(getpid(), 0);
+	if (!ASSERT_GT(pidfd, 0, "sys_pidfd_open"))
+		return;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.pid_fd = pidfd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	test_task_common(&opts, 2, 1);
+
+	close(pidfd);
+}
+
+static void test_task_sleepable(void)
+{
+	struct bpf_iter_tasks *skel;
+	int pid, status, err, data_pipe[2], finish_pipe[2], c = 0;
+	char *test_data = NULL;
+	char *test_data_long = NULL;
+	char *data[2];
+
+	if (!ASSERT_OK(pipe(data_pipe), "data_pipe") ||
+	    !ASSERT_OK(pipe(finish_pipe), "finish_pipe"))
+		return;
+
+	skel = bpf_iter_tasks__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_tasks__open_and_load"))
+		return;
+
+	pid = fork();
+	if (!ASSERT_GE(pid, 0, "fork"))
+		return;
+
+	if (pid == 0) {
+		/* child */
+		close(data_pipe[0]);
+		close(finish_pipe[1]);
+
+		test_data = malloc(sizeof(char) * 10);
+		strncpy(test_data, "test_data", 10);
+		test_data[9] = '\0';
+
+		test_data_long = malloc(sizeof(char) * 5000);
+		for (int i = 0; i < 5000; ++i) {
+			if (i % 2 == 0)
+				test_data_long[i] = 'b';
+			else
+				test_data_long[i] = 'a';
+		}
+		test_data_long[4999] = '\0';
+
+		data[0] = test_data;
+		data[1] = test_data_long;
+
+		write(data_pipe[1], &data, sizeof(data));
+
+		/* keep child alive until after the test */
+		err = read(finish_pipe[0], &c, 1);
+		if (err != 1)
+			exit(-1);
+
+		close(data_pipe[1]);
+		close(finish_pipe[0]);
+		_exit(0);
+	}
+
+	/* parent */
+	close(data_pipe[1]);
+	close(finish_pipe[0]);
+
+	err = read(data_pipe[0], &data, sizeof(data));
+	ASSERT_EQ(err, sizeof(data), "read_check");
+
+	skel->bss->user_ptr = data[0];
+	skel->bss->user_ptr_long = data[1];
+	skel->bss->pid = pid;
+
+	do_dummy_read(skel->progs.dump_task_sleepable);
+
+	ASSERT_GT(skel->bss->num_expected_failure_copy_from_user_task, 0,
+		  "num_expected_failure_copy_from_user_task");
+	ASSERT_GT(skel->bss->num_success_copy_from_user_task, 0,
+		  "num_success_copy_from_user_task");
+	ASSERT_GT(skel->bss->num_expected_failure_copy_from_user_task_str, 0,
+		  "num_expected_failure_copy_from_user_task_str");
+	ASSERT_GT(skel->bss->num_success_copy_from_user_task_str, 0,
+		  "num_success_copy_from_user_task_str");
+
+	bpf_iter_tasks__destroy(skel);
+
+	write(finish_pipe[1], &c, 1);
+	err = waitpid(pid, &status, 0);
+	ASSERT_EQ(err, pid, "waitpid");
+	ASSERT_EQ(status, 0, "zero_child_exit");
+
+	close(data_pipe[0]);
+	close(finish_pipe[1]);
+}
+
+static void test_task_stack(void)
+{
+	struct bpf_iter_task_stack *skel;
+
+	skel = bpf_iter_task_stack__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_stack__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_task_stack);
+	do_dummy_read(skel->progs.get_task_user_stacks);
+
+	ASSERT_EQ(skel->bss->num_user_stacks, 1, "num_user_stacks");
+
+	bpf_iter_task_stack__destroy(skel);
+}
+
+static void test_task_file(void)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_task_file *skel;
+	union bpf_iter_link_info linfo;
+	pthread_t thread_id;
+	void *ret;
+
+	skel = bpf_iter_task_file__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_file__open_and_load"))
+		return;
+
+	skel->bss->tgid = getpid();
+
+	ASSERT_OK(pthread_mutex_lock(&do_nothing_mutex), "pthread_mutex_lock");
+
+	ASSERT_OK(pthread_create(&thread_id, NULL, &do_nothing_wait, NULL),
+		  "pthread_create");
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.tid = getpid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	do_dummy_read_opts(skel->progs.dump_task_file, &opts);
+
+	ASSERT_EQ(skel->bss->count, 0, "check_count");
+	ASSERT_EQ(skel->bss->unique_tgid_count, 1, "check_unique_tgid_count");
+
+	skel->bss->last_tgid = 0;
+	skel->bss->count = 0;
+	skel->bss->unique_tgid_count = 0;
+
+	do_dummy_read(skel->progs.dump_task_file);
+
+	ASSERT_EQ(skel->bss->count, 0, "check_count");
+	ASSERT_GT(skel->bss->unique_tgid_count, 1, "check_unique_tgid_count");
+
+	check_bpf_link_info(skel->progs.dump_task_file);
+
+	ASSERT_OK(pthread_mutex_unlock(&do_nothing_mutex), "pthread_mutex_unlock");
+	ASSERT_OK(pthread_join(thread_id, &ret), "pthread_join");
+	ASSERT_NULL(ret, "pthread_join");
+
+	bpf_iter_task_file__destroy(skel);
+}
+
+#define TASKBUFSZ		32768
+
+static char taskbuf[TASKBUFSZ];
+
+static int do_btf_read(struct bpf_iter_task_btf *skel)
+{
+	struct bpf_program *prog = skel->progs.dump_task_struct;
+	struct bpf_iter_task_btf__bss *bss = skel->bss;
+	int iter_fd = -1, err;
+	struct bpf_link *link;
+	char *buf = taskbuf;
+	int ret = 0;
+
+	link = bpf_program__attach_iter(prog, NULL);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return ret;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	err = read_fd_into_buffer(iter_fd, buf, TASKBUFSZ);
+	if (bss->skip) {
+		printf("%s:SKIP:no __builtin_btf_type_id\n", __func__);
+		ret = 1;
+		test__skip();
+		goto free_link;
+	}
+
+	if (!ASSERT_GE(err, 0, "read"))
+		goto free_link;
+
+	ASSERT_HAS_SUBSTR(taskbuf, "(struct task_struct)",
+	      "check for btf representation of task_struct in iter data");
+free_link:
+	if (iter_fd > 0)
+		close(iter_fd);
+	bpf_link__destroy(link);
+	return ret;
+}
+
+static void test_task_btf(void)
+{
+	struct bpf_iter_task_btf__bss *bss;
+	struct bpf_iter_task_btf *skel;
+	int ret;
+
+	skel = bpf_iter_task_btf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_btf__open_and_load"))
+		return;
+
+	bss = skel->bss;
+
+	ret = do_btf_read(skel);
+	if (ret)
+		goto cleanup;
+
+	if (!ASSERT_NEQ(bss->tasks, 0, "no task iteration, did BPF program run?"))
+		goto cleanup;
+
+	ASSERT_EQ(bss->seq_err, 0, "check for unexpected err");
+
+cleanup:
+	bpf_iter_task_btf__destroy(skel);
+}
+
+static void test_tcp4(void)
+{
+	struct bpf_iter_tcp4 *skel;
+
+	skel = bpf_iter_tcp4__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_tcp4__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_tcp4);
+
+	bpf_iter_tcp4__destroy(skel);
+}
+
+static void test_tcp6(void)
+{
+	struct bpf_iter_tcp6 *skel;
+
+	skel = bpf_iter_tcp6__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_tcp6__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_tcp6);
+
+	bpf_iter_tcp6__destroy(skel);
+}
+
+static void test_udp4(void)
+{
+	struct bpf_iter_udp4 *skel;
+
+	skel = bpf_iter_udp4__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_udp4__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_udp4);
+
+	bpf_iter_udp4__destroy(skel);
+}
+
+static void test_udp6(void)
+{
+	struct bpf_iter_udp6 *skel;
+
+	skel = bpf_iter_udp6__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_udp6__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_udp6);
+
+	bpf_iter_udp6__destroy(skel);
+}
+
+static void test_unix(void)
+{
+	struct bpf_iter_unix *skel;
+
+	skel = bpf_iter_unix__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_unix__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_unix);
+
+	bpf_iter_unix__destroy(skel);
+}
+
+/* The expected string is less than 16 bytes */
+static int do_read_with_fd(int iter_fd, const char *expected,
+			   bool read_one_char)
+{
+	int len, read_buf_len, start;
+	char buf[16] = {};
+
+	read_buf_len = read_one_char ? 1 : 16;
+	start = 0;
+	while ((len = read(iter_fd, buf + start, read_buf_len)) > 0) {
+		start += len;
+		if (!ASSERT_LT(start, 16, "read"))
+			return -1;
+		read_buf_len = read_one_char ? 1 : 16 - start;
+	}
+	if (!ASSERT_GE(len, 0, "read"))
+		return -1;
+
+	if (!ASSERT_STREQ(buf, expected, "read"))
+		return -1;
+
+	return 0;
+}
+
+static void test_anon_iter(bool read_one_char)
+{
+	struct bpf_iter_test_kern1 *skel;
+	struct bpf_link *link;
+	int iter_fd, err;
+
+	skel = bpf_iter_test_kern1__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern1__open_and_load"))
+		return;
+
+	err = bpf_iter_test_kern1__attach(skel);
+	if (!ASSERT_OK(err, "bpf_iter_test_kern1__attach")) {
+		goto out;
+	}
+
+	link = skel->links.dump_task;
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto out;
+
+	do_read_with_fd(iter_fd, "abcd", read_one_char);
+	close(iter_fd);
+
+out:
+	bpf_iter_test_kern1__destroy(skel);
+}
+
+static int do_read(const char *path, const char *expected)
+{
+	int err, iter_fd;
+
+	iter_fd = open(path, O_RDONLY);
+	if (!ASSERT_GE(iter_fd, 0, "open"))
+		return -1;
+
+	err = do_read_with_fd(iter_fd, expected, false);
+	close(iter_fd);
+	return err;
+}
+
+static void test_file_iter(void)
+{
+	const char *path = "/sys/fs/bpf/bpf_iter_test1";
+	struct bpf_iter_test_kern1 *skel1;
+	struct bpf_iter_test_kern2 *skel2;
+	struct bpf_link *link;
+	int err;
+
+	skel1 = bpf_iter_test_kern1__open_and_load();
+	if (!ASSERT_OK_PTR(skel1, "bpf_iter_test_kern1__open_and_load"))
+		return;
+
+	link = bpf_program__attach_iter(skel1->progs.dump_task, NULL);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	/* unlink this path if it exists. */
+	unlink(path);
+
+	err = bpf_link__pin(link, path);
+	if (!ASSERT_OK(err, "pin_iter"))
+		goto free_link;
+
+	err = do_read(path, "abcd");
+	if (err)
+		goto unlink_path;
+
+	/* file based iterator seems working fine. Let us a link update
+	 * of the underlying link and `cat` the iterator again, its content
+	 * should change.
+	 */
+	skel2 = bpf_iter_test_kern2__open_and_load();
+	if (!ASSERT_OK_PTR(skel2, "bpf_iter_test_kern2__open_and_load"))
+		goto unlink_path;
+
+	err = bpf_link__update_program(link, skel2->progs.dump_task);
+	if (!ASSERT_OK(err, "update_prog"))
+		goto destroy_skel2;
+
+	do_read(path, "ABCD");
+
+destroy_skel2:
+	bpf_iter_test_kern2__destroy(skel2);
+unlink_path:
+	unlink(path);
+free_link:
+	bpf_link__destroy(link);
+out:
+	bpf_iter_test_kern1__destroy(skel1);
+}
+
+static void test_overflow(bool test_e2big_overflow, bool ret1)
+{
+	__u32 map_info_len, total_read_len, expected_read_len;
+	int err, iter_fd, map1_fd, map2_fd, len;
+	struct bpf_map_info map_info = {};
+	struct bpf_iter_test_kern4 *skel;
+	struct bpf_link *link;
+	__u32 iter_size;
+	char *buf;
+
+	skel = bpf_iter_test_kern4__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern4__open"))
+		return;
+
+	/* create two maps: bpf program will only do bpf_seq_write
+	 * for these two maps. The goal is one map output almost
+	 * fills seq_file buffer and then the other will trigger
+	 * overflow and needs restart.
+	 */
+	map1_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 8, 1, NULL);
+	if (!ASSERT_GE(map1_fd, 0, "bpf_map_create"))
+		goto out;
+	map2_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 8, 1, NULL);
+	if (!ASSERT_GE(map2_fd, 0, "bpf_map_create"))
+		goto free_map1;
+
+	/* bpf_seq_printf kernel buffer is 8 pages, so one map
+	 * bpf_seq_write will mostly fill it, and the other map
+	 * will partially fill and then trigger overflow and need
+	 * bpf_seq_read restart.
+	 */
+	iter_size = sysconf(_SC_PAGE_SIZE) << 3;
+
+	if (test_e2big_overflow) {
+		skel->rodata->print_len = (iter_size + 8) / 8;
+		expected_read_len = 2 * (iter_size + 8);
+	} else if (!ret1) {
+		skel->rodata->print_len = (iter_size - 8) / 8;
+		expected_read_len = 2 * (iter_size - 8);
+	} else {
+		skel->rodata->print_len = 1;
+		expected_read_len = 2 * 8;
+	}
+	skel->rodata->ret1 = ret1;
+
+	if (!ASSERT_OK(bpf_iter_test_kern4__load(skel),
+		  "bpf_iter_test_kern4__load"))
+		goto free_map2;
+
+	/* setup filtering map_id in bpf program */
+	map_info_len = sizeof(map_info);
+	err = bpf_map_get_info_by_fd(map1_fd, &map_info, &map_info_len);
+	if (!ASSERT_OK(err, "get_map_info"))
+		goto free_map2;
+	skel->bss->map1_id = map_info.id;
+
+	err = bpf_map_get_info_by_fd(map2_fd, &map_info, &map_info_len);
+	if (!ASSERT_OK(err, "get_map_info"))
+		goto free_map2;
+	skel->bss->map2_id = map_info.id;
+
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_map, NULL);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto free_map2;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	buf = malloc(expected_read_len);
+	if (!ASSERT_OK_PTR(buf, "malloc"))
+		goto close_iter;
+
+	/* do read */
+	total_read_len = 0;
+	if (test_e2big_overflow) {
+		while ((len = read(iter_fd, buf, expected_read_len)) > 0)
+			total_read_len += len;
+
+		ASSERT_EQ(len, -1, "read");
+		ASSERT_EQ(errno, E2BIG, "read");
+		goto free_buf;
+	} else if (!ret1) {
+		while ((len = read(iter_fd, buf, expected_read_len)) > 0)
+			total_read_len += len;
+
+		if (!ASSERT_GE(len, 0, "read"))
+			goto free_buf;
+	} else {
+		do {
+			len = read(iter_fd, buf, expected_read_len);
+			if (len > 0)
+				total_read_len += len;
+		} while (len > 0 || len == -EAGAIN);
+
+		if (!ASSERT_GE(len, 0, "read"))
+			goto free_buf;
+	}
+
+	if (!ASSERT_EQ(total_read_len, expected_read_len, "read"))
+		goto free_buf;
+
+	if (!ASSERT_EQ(skel->bss->map1_accessed, 1, "map1_accessed"))
+		goto free_buf;
+
+	if (!ASSERT_EQ(skel->bss->map2_accessed, 2, "map2_accessed"))
+		goto free_buf;
+
+	ASSERT_EQ(skel->bss->map2_seqnum1, skel->bss->map2_seqnum2, "map2_seqnum");
+
+free_buf:
+	free(buf);
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+free_map2:
+	close(map2_fd);
+free_map1:
+	close(map1_fd);
+out:
+	bpf_iter_test_kern4__destroy(skel);
+}
+
+static void test_bpf_hash_map(void)
+{
+	__u32 expected_key_a = 0, expected_key_b = 0;
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_bpf_hash_map *skel;
+	int err, i, len, map_fd, iter_fd;
+	union bpf_iter_link_info linfo;
+	__u64 val, expected_val = 0;
+	struct bpf_link *link;
+	struct key_t {
+		int a;
+		int b;
+		int c;
+	} key;
+	char buf[64];
+
+	skel = bpf_iter_bpf_hash_map__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_hash_map__open"))
+		return;
+
+	skel->bss->in_test_mode = true;
+
+	err = bpf_iter_bpf_hash_map__load(skel);
+	if (!ASSERT_OK(err, "bpf_iter_bpf_hash_map__load"))
+		goto out;
+
+	/* iterator with hashmap2 and hashmap3 should fail */
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap2);
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
+		goto out;
+
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap3);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
+		goto out;
+
+	/* hashmap1 should be good, update map values here */
+	map_fd = bpf_map__fd(skel->maps.hashmap1);
+	for (i = 0; i < bpf_map__max_entries(skel->maps.hashmap1); i++) {
+		key.a = i + 1;
+		key.b = i + 2;
+		key.c = i + 3;
+		val = i + 4;
+		expected_key_a += key.a;
+		expected_key_b += key.b;
+		expected_val += val;
+
+		err = bpf_map_update_elem(map_fd, &key, &val, BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	/* Sleepable program is prohibited for hash map iterator */
+	linfo.map.map_fd = map_fd;
+	link = bpf_program__attach_iter(skel->progs.sleepable_dummy_dump, &opts);
+	if (!ASSERT_ERR_PTR(link, "attach_sleepable_prog_to_iter"))
+		goto out;
+
+	linfo.map.map_fd = map_fd;
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	if (!ASSERT_EQ(skel->bss->key_sum_a, expected_key_a, "key_sum_a"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->key_sum_b, expected_key_b, "key_sum_b"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))
+		goto close_iter;
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	bpf_iter_bpf_hash_map__destroy(skel);
+}
+
+static void test_bpf_percpu_hash_map(void)
+{
+	__u32 expected_key_a = 0, expected_key_b = 0;
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_bpf_percpu_hash_map *skel;
+	int err, i, j, len, map_fd, iter_fd;
+	union bpf_iter_link_info linfo;
+	__u32 expected_val = 0;
+	struct bpf_link *link;
+	struct key_t {
+		int a;
+		int b;
+		int c;
+	} key;
+	char buf[64];
+	void *val;
+
+	skel = bpf_iter_bpf_percpu_hash_map__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__open"))
+		return;
+
+	skel->rodata->num_cpus = bpf_num_possible_cpus();
+	val = malloc(8 * bpf_num_possible_cpus());
+	if (!ASSERT_OK_PTR(val, "malloc"))
+		goto out;
+
+	err = bpf_iter_bpf_percpu_hash_map__load(skel);
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_hash_map__load"))
+		goto out;
+
+	/* update map values here */
+	map_fd = bpf_map__fd(skel->maps.hashmap1);
+	for (i = 0; i < bpf_map__max_entries(skel->maps.hashmap1); i++) {
+		key.a = i + 1;
+		key.b = i + 2;
+		key.c = i + 3;
+		expected_key_a += key.a;
+		expected_key_b += key.b;
+
+		for (j = 0; j < bpf_num_possible_cpus(); j++) {
+			*(__u32 *)(val + j * 8) = i + j;
+			expected_val += i + j;
+		}
+
+		err = bpf_map_update_elem(map_fd, &key, val, BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_hash_map, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	if (!ASSERT_EQ(skel->bss->key_sum_a, expected_key_a, "key_sum_a"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->key_sum_b, expected_key_b, "key_sum_b"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))
+		goto close_iter;
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	bpf_iter_bpf_percpu_hash_map__destroy(skel);
+	free(val);
+}
+
+static void test_bpf_array_map(void)
+{
+	__u64 val, expected_val = 0, res_first_val, first_val = 0;
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	__u32 key, expected_key = 0, res_first_key;
+	int err, i, map_fd, hash_fd, iter_fd;
+	struct bpf_iter_bpf_array_map *skel;
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+	char buf[64] = {};
+	int len, start;
+
+	skel = bpf_iter_bpf_array_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_array_map__open_and_load"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.arraymap1);
+	for (i = 0; i < bpf_map__max_entries(skel->maps.arraymap1); i++) {
+		val = i + 4;
+		expected_key += i;
+		expected_val += val;
+
+		if (i == 0)
+			first_val = val;
+
+		err = bpf_map_update_elem(map_fd, &i, &val, BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_array_map, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	start = 0;
+	while ((len = read(iter_fd, buf + start, sizeof(buf) - start)) > 0)
+		start += len;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	res_first_key = *(__u32 *)buf;
+	res_first_val = *(__u64 *)(buf + sizeof(__u32));
+	if (!ASSERT_EQ(res_first_key, 0, "bpf_seq_write") ||
+			!ASSERT_EQ(res_first_val, first_val, "bpf_seq_write"))
+		goto close_iter;
+
+	if (!ASSERT_EQ(skel->bss->key_sum, expected_key, "key_sum"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))
+		goto close_iter;
+
+	hash_fd = bpf_map__fd(skel->maps.hashmap1);
+	for (i = 0; i < bpf_map__max_entries(skel->maps.arraymap1); i++) {
+		err = bpf_map_lookup_elem(map_fd, &i, &val);
+		if (!ASSERT_OK(err, "map_lookup arraymap1"))
+			goto close_iter;
+		if (!ASSERT_EQ(i, val, "invalid_val arraymap1"))
+			goto close_iter;
+
+		val = i + 4;
+		err = bpf_map_lookup_elem(hash_fd, &val, &key);
+		if (!ASSERT_OK(err, "map_lookup hashmap1"))
+			goto close_iter;
+		if (!ASSERT_EQ(key, val - 4, "invalid_val hashmap1"))
+			goto close_iter;
+	}
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	bpf_iter_bpf_array_map__destroy(skel);
+}
+
+static void test_bpf_array_map_iter_fd(void)
+{
+	struct bpf_iter_bpf_array_map *skel;
+
+	skel = bpf_iter_bpf_array_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_array_map__open_and_load"))
+		return;
+
+	do_read_map_iter_fd(&skel->skeleton, skel->progs.dump_bpf_array_map,
+			    skel->maps.arraymap1);
+
+	bpf_iter_bpf_array_map__destroy(skel);
+}
+
+static void test_bpf_percpu_array_map(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_bpf_percpu_array_map *skel;
+	__u32 expected_key = 0, expected_val = 0;
+	union bpf_iter_link_info linfo;
+	int err, i, j, map_fd, iter_fd;
+	struct bpf_link *link;
+	char buf[64];
+	void *val;
+	int len;
+
+	skel = bpf_iter_bpf_percpu_array_map__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__open"))
+		return;
+
+	skel->rodata->num_cpus = bpf_num_possible_cpus();
+	val = malloc(8 * bpf_num_possible_cpus());
+	if (!ASSERT_OK_PTR(val, "malloc"))
+		goto out;
+
+	err = bpf_iter_bpf_percpu_array_map__load(skel);
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_percpu_array_map__load"))
+		goto out;
+
+	/* update map values here */
+	map_fd = bpf_map__fd(skel->maps.arraymap1);
+	for (i = 0; i < bpf_map__max_entries(skel->maps.arraymap1); i++) {
+		expected_key += i;
+
+		for (j = 0; j < bpf_num_possible_cpus(); j++) {
+			*(__u32 *)(val + j * 8) = i + j;
+			expected_val += i + j;
+		}
+
+		err = bpf_map_update_elem(map_fd, &i, val, BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_percpu_array_map, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	if (!ASSERT_EQ(skel->bss->key_sum, expected_key, "key_sum"))
+		goto close_iter;
+	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))
+		goto close_iter;
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	bpf_iter_bpf_percpu_array_map__destroy(skel);
+	free(val);
+}
+
+/* An iterator program deletes all local storage in a map. */
+static void test_bpf_sk_storage_delete(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_bpf_sk_storage_helpers *skel;
+	union bpf_iter_link_info linfo;
+	int err, len, map_fd, iter_fd;
+	struct bpf_link *link;
+	int sock_fd = -1;
+	__u32 val = 42;
+	char buf[64];
+
+	skel = bpf_iter_bpf_sk_storage_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.sk_stg_map);
+
+	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "socket"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &sock_fd, &val, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "map_update"))
+		goto out;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.delete_bpf_sk_storage_map,
+					&opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	err = bpf_map_lookup_elem(map_fd, &sock_fd, &val);
+
+	 /* Note: The following assertions serve to ensure
+	  * the value was deleted. It does so by asserting
+	  * that bpf_map_lookup_elem has failed. This might
+	  * seem counterintuitive at first.
+	  */
+	ASSERT_ERR(err, "bpf_map_lookup_elem");
+	ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem");
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	if (sock_fd >= 0)
+		close(sock_fd);
+	bpf_iter_bpf_sk_storage_helpers__destroy(skel);
+}
+
+/* This creates a socket and its local storage. It then runs a task_iter BPF
+ * program that replaces the existing socket local storage with the tgid of the
+ * only task owning a file descriptor to this socket, this process, prog_tests.
+ * It then runs a tcp socket iterator that negates the value in the existing
+ * socket local storage, the test verifies that the resulting value is -pid.
+ */
+static void test_bpf_sk_storage_get(void)
+{
+	struct bpf_iter_bpf_sk_storage_helpers *skel;
+	int err, map_fd, val = -1;
+	int sock_fd = -1;
+
+	skel = bpf_iter_bpf_sk_storage_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_helpers__open_and_load"))
+		return;
+
+	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "socket"))
+		goto out;
+
+	err = listen(sock_fd, 1);
+	if (!ASSERT_OK(err, "listen"))
+		goto close_socket;
+
+	map_fd = bpf_map__fd(skel->maps.sk_stg_map);
+
+	err = bpf_map_update_elem(map_fd, &sock_fd, &val, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem"))
+		goto close_socket;
+
+	do_dummy_read(skel->progs.fill_socket_owner);
+
+	err = bpf_map_lookup_elem(map_fd, &sock_fd, &val);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem") ||
+			!ASSERT_EQ(val, getpid(), "bpf_map_lookup_elem"))
+		goto close_socket;
+
+	do_dummy_read(skel->progs.negate_socket_local_storage);
+
+	err = bpf_map_lookup_elem(map_fd, &sock_fd, &val);
+	ASSERT_OK(err, "bpf_map_lookup_elem");
+	ASSERT_EQ(val, -getpid(), "bpf_map_lookup_elem");
+
+close_socket:
+	close(sock_fd);
+out:
+	bpf_iter_bpf_sk_storage_helpers__destroy(skel);
+}
+
+static void test_bpf_sk_storage_map_iter_fd(void)
+{
+	struct bpf_iter_bpf_sk_storage_map *skel;
+
+	skel = bpf_iter_bpf_sk_storage_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_map__open_and_load"))
+		return;
+
+	do_read_map_iter_fd(&skel->skeleton, skel->progs.rw_bpf_sk_storage_map,
+			    skel->maps.sk_stg_map);
+
+	bpf_iter_bpf_sk_storage_map__destroy(skel);
+}
+
+static void test_bpf_sk_storage_map(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	int err, i, len, map_fd, iter_fd, num_sockets;
+	struct bpf_iter_bpf_sk_storage_map *skel;
+	union bpf_iter_link_info linfo;
+	int sock_fd[3] = {-1, -1, -1};
+	__u32 val, expected_val = 0;
+	struct bpf_link *link;
+	char buf[64];
+
+	skel = bpf_iter_bpf_sk_storage_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_sk_storage_map__open_and_load"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.sk_stg_map);
+	num_sockets = ARRAY_SIZE(sock_fd);
+	for (i = 0; i < num_sockets; i++) {
+		sock_fd[i] = socket(AF_INET6, SOCK_STREAM, 0);
+		if (!ASSERT_GE(sock_fd[i], 0, "socket"))
+			goto out;
+
+		val = i + 1;
+		expected_val += val;
+
+		err = bpf_map_update_elem(map_fd, &sock_fd[i], &val,
+					  BPF_NOEXIST);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = map_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.oob_write_bpf_sk_storage_map, &opts);
+	err = libbpf_get_error(link);
+	if (!ASSERT_EQ(err, -EACCES, "attach_oob_write_iter")) {
+		if (!err)
+			bpf_link__destroy(link);
+		goto out;
+	}
+
+	link = bpf_program__attach_iter(skel->progs.rw_bpf_sk_storage_map, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	skel->bss->to_add_val = time(NULL);
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	if (!ASSERT_EQ(skel->bss->ipv6_sk_count, num_sockets, "ipv6_sk_count"))
+		goto close_iter;
+
+	if (!ASSERT_EQ(skel->bss->val_sum, expected_val, "val_sum"))
+		goto close_iter;
+
+	for (i = 0; i < num_sockets; i++) {
+		err = bpf_map_lookup_elem(map_fd, &sock_fd[i], &val);
+		if (!ASSERT_OK(err, "map_lookup") ||
+		    !ASSERT_EQ(val, i + 1 + skel->bss->to_add_val, "check_map_value"))
+			break;
+	}
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	for (i = 0; i < num_sockets; i++) {
+		if (sock_fd[i] >= 0)
+			close(sock_fd[i]);
+	}
+	bpf_iter_bpf_sk_storage_map__destroy(skel);
+}
+
+static void test_rdonly_buf_out_of_bound(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	struct bpf_iter_test_kern5 *skel;
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+
+	skel = bpf_iter_test_kern5__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_test_kern5__open_and_load"))
+		return;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.map.map_fd = bpf_map__fd(skel->maps.hashmap1);
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.dump_bpf_hash_map, &opts);
+	if (!ASSERT_ERR_PTR(link, "attach_iter"))
+		bpf_link__destroy(link);
+
+	bpf_iter_test_kern5__destroy(skel);
+}
+
+static void test_buf_neg_offset(void)
+{
+	struct bpf_iter_test_kern6 *skel;
+
+	skel = bpf_iter_test_kern6__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "bpf_iter_test_kern6__open_and_load"))
+		bpf_iter_test_kern6__destroy(skel);
+}
+
+static void test_link_iter(void)
+{
+	struct bpf_iter_bpf_link *skel;
+
+	skel = bpf_iter_bpf_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_bpf_link__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_bpf_link);
+
+	bpf_iter_bpf_link__destroy(skel);
+}
+
+static void test_ksym_iter(void)
+{
+	struct bpf_iter_ksym *skel;
+
+	skel = bpf_iter_ksym__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_ksym__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_ksym);
+
+	bpf_iter_ksym__destroy(skel);
+}
+
+#define CMP_BUFFER_SIZE 1024
+static char task_vma_output[CMP_BUFFER_SIZE];
+static char proc_maps_output[CMP_BUFFER_SIZE];
+
+/* remove \0 and \t from str, and only keep the first line */
+static void str_strip_first_line(char *str)
+{
+	char *dst = str, *src = str;
+
+	do {
+		if (*src == ' ' || *src == '\t')
+			src++;
+		else
+			*(dst++) = *(src++);
+
+	} while (*src != '\0' && *src != '\n');
+
+	*dst = '\0';
+}
+
+static void test_task_vma_common(struct bpf_iter_attach_opts *opts)
+{
+	int err, iter_fd = -1, proc_maps_fd = -1;
+	struct bpf_iter_task_vmas *skel;
+	int len, read_size = 4;
+	char maps_path[64];
+
+	skel = bpf_iter_task_vmas__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vmas__open"))
+		return;
+
+	skel->bss->pid = getpid();
+	skel->bss->one_task = opts ? 1 : 0;
+
+	err = bpf_iter_task_vmas__load(skel);
+	if (!ASSERT_OK(err, "bpf_iter_task_vmas__load"))
+		goto out;
+
+	skel->links.proc_maps = bpf_program__attach_iter(
+		skel->progs.proc_maps, opts);
+
+	if (!ASSERT_OK_PTR(skel->links.proc_maps, "bpf_program__attach_iter")) {
+		skel->links.proc_maps = NULL;
+		goto out;
+	}
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.proc_maps));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto out;
+
+	/* Read CMP_BUFFER_SIZE (1kB) from bpf_iter. Read in small chunks
+	 * to trigger seq_file corner cases.
+	 */
+	len = 0;
+	while (len < CMP_BUFFER_SIZE) {
+		err = read_fd_into_buffer(iter_fd, task_vma_output + len,
+					  MIN(read_size, CMP_BUFFER_SIZE - len));
+		if (!err)
+			break;
+		if (!ASSERT_GE(err, 0, "read_iter_fd"))
+			goto out;
+		len += err;
+	}
+	if (opts)
+		ASSERT_EQ(skel->bss->one_task_error, 0, "unexpected task");
+
+	/* read CMP_BUFFER_SIZE (1kB) from /proc/pid/maps */
+	snprintf(maps_path, 64, "/proc/%u/maps", skel->bss->pid);
+	proc_maps_fd = open(maps_path, O_RDONLY);
+	if (!ASSERT_GE(proc_maps_fd, 0, "open_proc_maps"))
+		goto out;
+	err = read_fd_into_buffer(proc_maps_fd, proc_maps_output, CMP_BUFFER_SIZE);
+	if (!ASSERT_GE(err, 0, "read_prog_maps_fd"))
+		goto out;
+
+	/* strip and compare the first line of the two files */
+	str_strip_first_line(task_vma_output);
+	str_strip_first_line(proc_maps_output);
+
+	ASSERT_STREQ(task_vma_output, proc_maps_output, "compare_output");
+
+	check_bpf_link_info(skel->progs.proc_maps);
+
+out:
+	close(proc_maps_fd);
+	close(iter_fd);
+	bpf_iter_task_vmas__destroy(skel);
+}
+
+static void test_task_vma_dead_task(void)
+{
+	struct bpf_iter_task_vmas *skel;
+	int wstatus, child_pid = -1;
+	time_t start_tm, cur_tm;
+	int err, iter_fd = -1;
+	int wait_sec = 3;
+
+	skel = bpf_iter_task_vmas__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_task_vmas__open"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	err = bpf_iter_task_vmas__load(skel);
+	if (!ASSERT_OK(err, "bpf_iter_task_vmas__load"))
+		goto out;
+
+	skel->links.proc_maps = bpf_program__attach_iter(
+		skel->progs.proc_maps, NULL);
+
+	if (!ASSERT_OK_PTR(skel->links.proc_maps, "bpf_program__attach_iter")) {
+		skel->links.proc_maps = NULL;
+		goto out;
+	}
+
+	start_tm = time(NULL);
+	cur_tm = start_tm;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		/* Fork short-lived processes in the background. */
+		while (cur_tm < start_tm + wait_sec) {
+			system("echo > /dev/null");
+			cur_tm = time(NULL);
+		}
+		exit(0);
+	}
+
+	if (!ASSERT_GE(child_pid, 0, "fork_child"))
+		goto out;
+
+	while (cur_tm < start_tm + wait_sec) {
+		iter_fd = bpf_iter_create(bpf_link__fd(skel->links.proc_maps));
+		if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+			goto out;
+
+		/* Drain all data from iter_fd. */
+		while (cur_tm < start_tm + wait_sec) {
+			err = read_fd_into_buffer(iter_fd, task_vma_output, CMP_BUFFER_SIZE);
+			if (!ASSERT_GE(err, 0, "read_iter_fd"))
+				goto out;
+
+			cur_tm = time(NULL);
+
+			if (err == 0)
+				break;
+		}
+
+		close(iter_fd);
+		iter_fd = -1;
+	}
+
+	check_bpf_link_info(skel->progs.proc_maps);
+
+out:
+	waitpid(child_pid, &wstatus, 0);
+	close(iter_fd);
+	bpf_iter_task_vmas__destroy(skel);
+}
+
+void test_bpf_sockmap_map_iter_fd(void)
+{
+	struct bpf_iter_sockmap *skel;
+
+	skel = bpf_iter_sockmap__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_sockmap__open_and_load"))
+		return;
+
+	do_read_map_iter_fd(&skel->skeleton, skel->progs.copy, skel->maps.sockmap);
+
+	bpf_iter_sockmap__destroy(skel);
+}
+
+static void test_task_vma(void)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.tid = getpid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	test_task_vma_common(&opts);
+	test_task_vma_common(NULL);
+}
+
+/* uprobe attach point */
+static noinline int trigger_func(int arg)
+{
+	asm volatile ("");
+	return arg + 1;
+}
+
+static void test_task_vma_offset_common(struct bpf_iter_attach_opts *opts, bool one_proc)
+{
+	struct bpf_iter_vma_offset *skel;
+	char buf[16] = {};
+	int iter_fd, len;
+	int pgsz, shift;
+
+	skel = bpf_iter_vma_offset__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_vma_offset__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+	skel->bss->address = (uintptr_t)trigger_func;
+	for (pgsz = getpagesize(), shift = 0; pgsz > 1; pgsz >>= 1, shift++)
+		;
+	skel->bss->page_shift = shift;
+
+	skel->links.get_vma_offset = bpf_program__attach_iter(skel->progs.get_vma_offset, opts);
+	if (!ASSERT_OK_PTR(skel->links.get_vma_offset, "attach_iter"))
+		goto exit;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.get_vma_offset));
+	if (!ASSERT_GT(iter_fd, 0, "create_iter"))
+		goto exit;
+
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	buf[15] = 0;
+	ASSERT_EQ(strcmp(buf, "OK\n"), 0, "strcmp");
+
+	ASSERT_EQ(skel->bss->offset, get_uprobe_offset(trigger_func), "offset");
+	if (one_proc)
+		ASSERT_EQ(skel->bss->unique_tgid_cnt, 1, "unique_tgid_count");
+	else
+		ASSERT_GT(skel->bss->unique_tgid_cnt, 1, "unique_tgid_count");
+
+	close(iter_fd);
+
+exit:
+	bpf_iter_vma_offset__destroy(skel);
+}
+
+static void test_task_vma_offset(void)
+{
+	LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.task.pid = getpid();
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	test_task_vma_offset_common(&opts, true);
+
+	linfo.task.pid = 0;
+	linfo.task.tid = getpid();
+	test_task_vma_offset_common(&opts, true);
+
+	test_task_vma_offset_common(NULL, false);
+}
+
+void test_bpf_iter(void)
+{
+	ASSERT_OK(pthread_mutex_init(&do_nothing_mutex, NULL), "pthread_mutex_init");
+
+	if (test__start_subtest("btf_id_or_null"))
+		test_btf_id_or_null();
+	if (test__start_subtest("ipv6_route"))
+		test_ipv6_route();
+	if (test__start_subtest("netlink"))
+		test_netlink();
+	if (test__start_subtest("bpf_map"))
+		test_bpf_map();
+	if (test__start_subtest("task_tid"))
+		test_task_tid();
+	if (test__start_subtest("task_pid"))
+		test_task_pid();
+	if (test__start_subtest("task_pidfd"))
+		test_task_pidfd();
+	if (test__start_subtest("task_sleepable"))
+		test_task_sleepable();
+	if (test__start_subtest("task_stack"))
+		test_task_stack();
+	if (test__start_subtest("task_file"))
+		test_task_file();
+	if (test__start_subtest("task_vma"))
+		test_task_vma();
+	if (test__start_subtest("task_vma_dead_task"))
+		test_task_vma_dead_task();
+	if (test__start_subtest("task_btf"))
+		test_task_btf();
+	if (test__start_subtest("tcp4"))
+		test_tcp4();
+	if (test__start_subtest("tcp6"))
+		test_tcp6();
+	if (test__start_subtest("udp4"))
+		test_udp4();
+	if (test__start_subtest("udp6"))
+		test_udp6();
+	if (test__start_subtest("unix"))
+		test_unix();
+	if (test__start_subtest("anon"))
+		test_anon_iter(false);
+	if (test__start_subtest("anon-read-one-char"))
+		test_anon_iter(true);
+	if (test__start_subtest("file"))
+		test_file_iter();
+	if (test__start_subtest("overflow"))
+		test_overflow(false, false);
+	if (test__start_subtest("overflow-e2big"))
+		test_overflow(true, false);
+	if (test__start_subtest("prog-ret-1"))
+		test_overflow(false, true);
+	if (test__start_subtest("bpf_hash_map"))
+		test_bpf_hash_map();
+	if (test__start_subtest("bpf_percpu_hash_map"))
+		test_bpf_percpu_hash_map();
+	if (test__start_subtest("bpf_array_map"))
+		test_bpf_array_map();
+	if (test__start_subtest("bpf_array_map_iter_fd"))
+		test_bpf_array_map_iter_fd();
+	if (test__start_subtest("bpf_percpu_array_map"))
+		test_bpf_percpu_array_map();
+	if (test__start_subtest("bpf_sk_storage_map"))
+		test_bpf_sk_storage_map();
+	if (test__start_subtest("bpf_sk_storage_map_iter_fd"))
+		test_bpf_sk_storage_map_iter_fd();
+	if (test__start_subtest("bpf_sk_storage_delete"))
+		test_bpf_sk_storage_delete();
+	if (test__start_subtest("bpf_sk_storage_get"))
+		test_bpf_sk_storage_get();
+	if (test__start_subtest("rdonly-buf-out-of-bound"))
+		test_rdonly_buf_out_of_bound();
+	if (test__start_subtest("buf-neg-offset"))
+		test_buf_neg_offset();
+	if (test__start_subtest("link-iter"))
+		test_link_iter();
+	if (test__start_subtest("ksym"))
+		test_ksym_iter();
+	if (test__start_subtest("bpf_sockmap_map_iter_fd"))
+		test_bpf_sockmap_map_iter_fd();
+	if (test__start_subtest("vma_offset"))
+		test_task_vma_offset();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt.c
new file mode 100644
index 000000000000..16bed9dd8e6a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <test_progs.h>
+#include "network_helpers.h"
+#include "bpf_dctcp.skel.h"
+#include "bpf_cubic.skel.h"
+#include "bpf_iter_setsockopt.skel.h"
+
+static int create_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "bring up lo"))
+		return -1;
+
+	return 0;
+}
+
+static unsigned int set_bpf_cubic(int *fds, unsigned int nr_fds)
+{
+	unsigned int i;
+
+	for (i = 0; i < nr_fds; i++) {
+		if (setsockopt(fds[i], SOL_TCP, TCP_CONGESTION, "bpf_cubic",
+			       sizeof("bpf_cubic")))
+			return i;
+	}
+
+	return nr_fds;
+}
+
+static unsigned int check_bpf_dctcp(int *fds, unsigned int nr_fds)
+{
+	char tcp_cc[16];
+	socklen_t optlen = sizeof(tcp_cc);
+	unsigned int i;
+
+	for (i = 0; i < nr_fds; i++) {
+		if (getsockopt(fds[i], SOL_TCP, TCP_CONGESTION,
+			       tcp_cc, &optlen) ||
+		    strcmp(tcp_cc, "bpf_dctcp"))
+			return i;
+	}
+
+	return nr_fds;
+}
+
+static int *make_established(int listen_fd, unsigned int nr_est,
+			     int **paccepted_fds)
+{
+	int *est_fds, *accepted_fds;
+	unsigned int i;
+
+	est_fds = malloc(sizeof(*est_fds) * nr_est);
+	if (!est_fds)
+		return NULL;
+
+	accepted_fds = malloc(sizeof(*accepted_fds) * nr_est);
+	if (!accepted_fds) {
+		free(est_fds);
+		return NULL;
+	}
+
+	for (i = 0; i < nr_est; i++) {
+		est_fds[i] = connect_to_fd(listen_fd, 0);
+		if (est_fds[i] == -1)
+			break;
+		if (set_bpf_cubic(&est_fds[i], 1) != 1) {
+			close(est_fds[i]);
+			break;
+		}
+
+		accepted_fds[i] = accept(listen_fd, NULL, 0);
+		if (accepted_fds[i] == -1) {
+			close(est_fds[i]);
+			break;
+		}
+	}
+
+	if (!ASSERT_EQ(i, nr_est, "create established fds")) {
+		free_fds(accepted_fds, i);
+		free_fds(est_fds, i);
+		return NULL;
+	}
+
+	*paccepted_fds = accepted_fds;
+	return est_fds;
+}
+
+static unsigned short get_local_port(int fd)
+{
+	struct sockaddr_in6 addr;
+	socklen_t addrlen = sizeof(addr);
+
+	if (!getsockname(fd, (struct sockaddr *)&addr, &addrlen))
+		return ntohs(addr.sin6_port);
+
+	return 0;
+}
+
+static void do_bpf_iter_setsockopt(struct bpf_iter_setsockopt *iter_skel,
+				   bool random_retry)
+{
+	int *reuse_listen_fds = NULL, *accepted_fds = NULL, *est_fds = NULL;
+	unsigned int nr_reuse_listens = 256, nr_est = 256;
+	int err, iter_fd = -1, listen_fd = -1;
+	char buf;
+
+	/* Prepare non-reuseport listen_fd */
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	if (!ASSERT_GE(listen_fd, 0, "start_server"))
+		return;
+	if (!ASSERT_EQ(set_bpf_cubic(&listen_fd, 1), 1,
+		       "set listen_fd to cubic"))
+		goto done;
+	iter_skel->bss->listen_hport = get_local_port(listen_fd);
+	if (!ASSERT_NEQ(iter_skel->bss->listen_hport, 0,
+			"get_local_port(listen_fd)"))
+		goto done;
+
+	/* Connect to non-reuseport listen_fd */
+	est_fds = make_established(listen_fd, nr_est, &accepted_fds);
+	if (!ASSERT_OK_PTR(est_fds, "create established"))
+		goto done;
+
+	/* Prepare reuseport listen fds */
+	reuse_listen_fds = start_reuseport_server(AF_INET6, SOCK_STREAM,
+						  "::1", 0, 0,
+						  nr_reuse_listens);
+	if (!ASSERT_OK_PTR(reuse_listen_fds, "start_reuseport_server"))
+		goto done;
+	if (!ASSERT_EQ(set_bpf_cubic(reuse_listen_fds, nr_reuse_listens),
+		       nr_reuse_listens, "set reuse_listen_fds to cubic"))
+		goto done;
+	iter_skel->bss->reuse_listen_hport = get_local_port(reuse_listen_fds[0]);
+	if (!ASSERT_NEQ(iter_skel->bss->reuse_listen_hport, 0,
+			"get_local_port(reuse_listen_fds[0])"))
+		goto done;
+
+	/* Run bpf tcp iter to switch from bpf_cubic to bpf_dctcp */
+	iter_skel->bss->random_retry = random_retry;
+	iter_fd = bpf_iter_create(bpf_link__fd(iter_skel->links.change_tcp_cc));
+	if (!ASSERT_GE(iter_fd, 0, "create iter_fd"))
+		goto done;
+
+	while ((err = read(iter_fd, &buf, sizeof(buf))) == -1 &&
+	       errno == EAGAIN)
+		;
+	if (!ASSERT_OK(err, "read iter error"))
+		goto done;
+
+	/* Check reuseport listen fds for dctcp */
+	ASSERT_EQ(check_bpf_dctcp(reuse_listen_fds, nr_reuse_listens),
+		  nr_reuse_listens,
+		  "check reuse_listen_fds dctcp");
+
+	/* Check non reuseport listen fd for dctcp */
+	ASSERT_EQ(check_bpf_dctcp(&listen_fd, 1), 1,
+		  "check listen_fd dctcp");
+
+	/* Check established fds for dctcp */
+	ASSERT_EQ(check_bpf_dctcp(est_fds, nr_est), nr_est,
+		  "check est_fds dctcp");
+
+	/* Check accepted fds for dctcp */
+	ASSERT_EQ(check_bpf_dctcp(accepted_fds, nr_est), nr_est,
+		  "check accepted_fds dctcp");
+
+done:
+	if (iter_fd != -1)
+		close(iter_fd);
+	if (listen_fd != -1)
+		close(listen_fd);
+	free_fds(reuse_listen_fds, nr_reuse_listens);
+	free_fds(accepted_fds, nr_est);
+	free_fds(est_fds, nr_est);
+}
+
+void serial_test_bpf_iter_setsockopt(void)
+{
+	struct bpf_iter_setsockopt *iter_skel = NULL;
+	struct bpf_cubic *cubic_skel = NULL;
+	struct bpf_dctcp *dctcp_skel = NULL;
+	struct bpf_link *cubic_link = NULL;
+	struct bpf_link *dctcp_link = NULL;
+
+	if (create_netns())
+		return;
+
+	/* Load iter_skel */
+	iter_skel = bpf_iter_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(iter_skel, "iter_skel"))
+		return;
+	iter_skel->links.change_tcp_cc = bpf_program__attach_iter(iter_skel->progs.change_tcp_cc, NULL);
+	if (!ASSERT_OK_PTR(iter_skel->links.change_tcp_cc, "attach iter"))
+		goto done;
+
+	/* Load bpf_cubic */
+	cubic_skel = bpf_cubic__open_and_load();
+	if (!ASSERT_OK_PTR(cubic_skel, "cubic_skel"))
+		goto done;
+	cubic_link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic);
+	if (!ASSERT_OK_PTR(cubic_link, "cubic_link"))
+		goto done;
+
+	/* Load bpf_dctcp */
+	dctcp_skel = bpf_dctcp__open_and_load();
+	if (!ASSERT_OK_PTR(dctcp_skel, "dctcp_skel"))
+		goto done;
+	dctcp_link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
+	if (!ASSERT_OK_PTR(dctcp_link, "dctcp_link"))
+		goto done;
+
+	do_bpf_iter_setsockopt(iter_skel, true);
+	do_bpf_iter_setsockopt(iter_skel, false);
+
+done:
+	bpf_link__destroy(cubic_link);
+	bpf_link__destroy(dctcp_link);
+	bpf_cubic__destroy(cubic_skel);
+	bpf_dctcp__destroy(dctcp_skel);
+	bpf_iter_setsockopt__destroy(iter_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt_unix.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt_unix.c
new file mode 100644
index 000000000000..ee725d4d98a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter_setsockopt_unix.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <test_progs.h>
+#include "bpf_iter_setsockopt_unix.skel.h"
+
+#define NR_CASES 5
+
+static int create_unix_socket(struct bpf_iter_setsockopt_unix *skel)
+{
+	struct sockaddr_un addr = {
+		.sun_family = AF_UNIX,
+		.sun_path = "",
+	};
+	socklen_t len;
+	int fd, err;
+
+	fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (!ASSERT_NEQ(fd, -1, "socket"))
+		return -1;
+
+	len = offsetof(struct sockaddr_un, sun_path);
+	err = bind(fd, (struct sockaddr *)&addr, len);
+	if (!ASSERT_OK(err, "bind"))
+		return -1;
+
+	len = sizeof(addr);
+	err = getsockname(fd, (struct sockaddr *)&addr, &len);
+	if (!ASSERT_OK(err, "getsockname"))
+		return -1;
+
+	memcpy(&skel->bss->sun_path, &addr.sun_path,
+	       len - offsetof(struct sockaddr_un, sun_path));
+
+	return fd;
+}
+
+static void test_sndbuf(struct bpf_iter_setsockopt_unix *skel, int fd)
+{
+	socklen_t optlen;
+	int i, err;
+
+	for (i = 0; i < NR_CASES; i++) {
+		if (!ASSERT_NEQ(skel->data->sndbuf_getsockopt[i], -1,
+				"bpf_(get|set)sockopt"))
+			return;
+
+		err = setsockopt(fd, SOL_SOCKET, SO_SNDBUF,
+				 &(skel->data->sndbuf_setsockopt[i]),
+				 sizeof(skel->data->sndbuf_setsockopt[i]));
+		if (!ASSERT_OK(err, "setsockopt"))
+			return;
+
+		optlen = sizeof(skel->bss->sndbuf_getsockopt_expected[i]);
+		err = getsockopt(fd, SOL_SOCKET, SO_SNDBUF,
+				 &(skel->bss->sndbuf_getsockopt_expected[i]),
+				 &optlen);
+		if (!ASSERT_OK(err, "getsockopt"))
+			return;
+
+		if (!ASSERT_EQ(skel->data->sndbuf_getsockopt[i],
+			       skel->bss->sndbuf_getsockopt_expected[i],
+			       "bpf_(get|set)sockopt"))
+			return;
+	}
+}
+
+void test_bpf_iter_setsockopt_unix(void)
+{
+	struct bpf_iter_setsockopt_unix *skel;
+	int err, unix_fd, iter_fd;
+	char buf;
+
+	skel = bpf_iter_setsockopt_unix__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	unix_fd = create_unix_socket(skel);
+	if (!ASSERT_NEQ(unix_fd, -1, "create_unix_server"))
+		goto destroy;
+
+	skel->links.change_sndbuf = bpf_program__attach_iter(skel->progs.change_sndbuf, NULL);
+	if (!ASSERT_OK_PTR(skel->links.change_sndbuf, "bpf_program__attach_iter"))
+		goto destroy;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.change_sndbuf));
+	if (!ASSERT_GE(iter_fd, 0, "bpf_iter_create"))
+		goto destroy;
+
+	while ((err = read(iter_fd, &buf, sizeof(buf))) == -1 &&
+	       errno == EAGAIN)
+		;
+	if (!ASSERT_OK(err, "read iter error"))
+		goto destroy;
+
+	test_sndbuf(skel, unix_fd);
+destroy:
+	bpf_iter_setsockopt_unix__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_loop.c b/tools/testing/selftests/bpf/prog_tests/bpf_loop.c
new file mode 100644
index 000000000000..4cd8a25afe68
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_loop.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "bpf_loop.skel.h"
+
+static void check_nr_loops(struct bpf_loop *skel)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(skel->progs.test_prog);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	/* test 0 loops */
+	skel->bss->nr_loops = 0;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->nr_loops_returned, skel->bss->nr_loops,
+		  "0 loops");
+
+	/* test 500 loops */
+	skel->bss->nr_loops = 500;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->nr_loops_returned, skel->bss->nr_loops,
+		  "500 loops");
+	ASSERT_EQ(skel->bss->g_output, (500 * 499) / 2, "g_output");
+
+	/* test exceeding the max limit */
+	skel->bss->nr_loops = -1;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->err, -E2BIG, "over max limit");
+
+	bpf_link__destroy(link);
+}
+
+static void check_callback_fn_stop(struct bpf_loop *skel)
+{
+	struct bpf_link *link;
+
+	link = bpf_program__attach(skel->progs.test_prog);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	/* testing that loop is stopped when callback_fn returns 1 */
+	skel->bss->nr_loops = 400;
+	skel->data->stop_index = 50;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->nr_loops_returned, skel->data->stop_index + 1,
+		  "nr_loops_returned");
+	ASSERT_EQ(skel->bss->g_output, (50 * 49) / 2,
+		  "g_output");
+
+	bpf_link__destroy(link);
+}
+
+static void check_null_callback_ctx(struct bpf_loop *skel)
+{
+	struct bpf_link *link;
+
+	/* check that user is able to pass in a null callback_ctx */
+	link = bpf_program__attach(skel->progs.prog_null_ctx);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	skel->bss->nr_loops = 10;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->nr_loops_returned, skel->bss->nr_loops,
+		  "nr_loops_returned");
+
+	bpf_link__destroy(link);
+}
+
+static void check_invalid_flags(struct bpf_loop *skel)
+{
+	struct bpf_link *link;
+
+	/* check that passing in non-zero flags returns -EINVAL */
+	link = bpf_program__attach(skel->progs.prog_invalid_flags);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->err, -EINVAL, "err");
+
+	bpf_link__destroy(link);
+}
+
+static void check_nested_calls(struct bpf_loop *skel)
+{
+	__u32 nr_loops = 100, nested_callback_nr_loops = 4;
+	struct bpf_link *link;
+
+	/* check that nested calls are supported */
+	link = bpf_program__attach(skel->progs.prog_nested_calls);
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	skel->bss->nr_loops = nr_loops;
+	skel->bss->nested_callback_nr_loops = nested_callback_nr_loops;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->nr_loops_returned, nr_loops * nested_callback_nr_loops
+		  * nested_callback_nr_loops, "nr_loops_returned");
+	ASSERT_EQ(skel->bss->g_output, (4 * 3) / 2 * nested_callback_nr_loops
+		* nr_loops, "g_output");
+
+	bpf_link__destroy(link);
+}
+
+static void check_non_constant_callback(struct bpf_loop *skel)
+{
+	struct bpf_link *link =
+		bpf_program__attach(skel->progs.prog_non_constant_callback);
+
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	skel->bss->callback_selector = 0x0F;
+	usleep(1);
+	ASSERT_EQ(skel->bss->g_output, 0x0F, "g_output #1");
+
+	skel->bss->callback_selector = 0xF0;
+	usleep(1);
+	ASSERT_EQ(skel->bss->g_output, 0xF0, "g_output #2");
+
+	bpf_link__destroy(link);
+}
+
+static void check_stack(struct bpf_loop *skel)
+{
+	struct bpf_link *link = bpf_program__attach(skel->progs.stack_check);
+	const int max_key = 12;
+	int key;
+	int map_fd;
+
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.map1);
+
+	if (!ASSERT_GE(map_fd, 0, "bpf_map__fd"))
+		goto out;
+
+	for (key = 1; key <= max_key; ++key) {
+		int val = key;
+		int err = bpf_map_update_elem(map_fd, &key, &val, BPF_NOEXIST);
+
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto out;
+	}
+
+	usleep(1);
+
+	for (key = 1; key <= max_key; ++key) {
+		int val;
+		int err = bpf_map_lookup_elem(map_fd, &key, &val);
+
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+			goto out;
+		if (!ASSERT_EQ(val, key + 1, "bad value in the map"))
+			goto out;
+	}
+
+out:
+	bpf_link__destroy(link);
+}
+
+void test_bpf_loop(void)
+{
+	struct bpf_loop *skel;
+
+	skel = bpf_loop__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_loop__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	if (test__start_subtest("check_nr_loops"))
+		check_nr_loops(skel);
+	if (test__start_subtest("check_callback_fn_stop"))
+		check_callback_fn_stop(skel);
+	if (test__start_subtest("check_null_callback_ctx"))
+		check_null_callback_ctx(skel);
+	if (test__start_subtest("check_invalid_flags"))
+		check_invalid_flags(skel);
+	if (test__start_subtest("check_nested_calls"))
+		check_nested_calls(skel);
+	if (test__start_subtest("check_non_constant_callback"))
+		check_non_constant_callback(skel);
+	if (test__start_subtest("check_stack"))
+		check_stack(skel);
+
+	bpf_loop__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_mod_race.c b/tools/testing/selftests/bpf/prog_tests/bpf_mod_race.c
new file mode 100644
index 000000000000..ecc3d47919ad
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_mod_race.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <unistd.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <stdatomic.h>
+#include <test_progs.h>
+#include <sys/syscall.h>
+#include <linux/module.h>
+#include <linux/userfaultfd.h>
+
+#include "ksym_race.skel.h"
+#include "bpf_mod_race.skel.h"
+#include "kfunc_call_race.skel.h"
+#include "testing_helpers.h"
+
+/* This test crafts a race between btf_try_get_module and do_init_module, and
+ * checks whether btf_try_get_module handles the invocation for a well-formed
+ * but uninitialized module correctly. Unless the module has completed its
+ * initcalls, the verifier should fail the program load and return ENXIO.
+ *
+ * userfaultfd is used to trigger a fault in an fmod_ret program, and make it
+ * sleep, then the BPF program is loaded and the return value from verifier is
+ * inspected. After this, the userfaultfd is closed so that the module loading
+ * thread makes forward progress, and fmod_ret injects an error so that the
+ * module load fails and it is freed.
+ *
+ * If the verifier succeeded in loading the supplied program, it will end up
+ * taking reference to freed module, and trigger a crash when the program fd
+ * is closed later. This is true for both kfuncs and ksyms. In both cases,
+ * the crash is triggered inside bpf_prog_free_deferred, when module reference
+ * is finally released.
+ */
+
+struct test_config {
+	const char *str_open;
+	void *(*bpf_open_and_load)();
+	void (*bpf_destroy)(void *);
+};
+
+enum bpf_test_state {
+	_TS_INVALID,
+	TS_MODULE_LOAD,
+	TS_MODULE_LOAD_FAIL,
+};
+
+static _Atomic enum bpf_test_state state = _TS_INVALID;
+
+static void *load_module_thread(void *p)
+{
+
+	if (!ASSERT_NEQ(load_bpf_testmod(false), 0, "load_module_thread must fail"))
+		atomic_store(&state, TS_MODULE_LOAD);
+	else
+		atomic_store(&state, TS_MODULE_LOAD_FAIL);
+	return p;
+}
+
+static int sys_userfaultfd(int flags)
+{
+	return syscall(__NR_userfaultfd, flags);
+}
+
+static int test_setup_uffd(void *fault_addr)
+{
+	struct uffdio_register uffd_register = {};
+	struct uffdio_api uffd_api = {};
+	int uffd;
+
+	uffd = sys_userfaultfd(O_CLOEXEC);
+	if (uffd < 0)
+		return -errno;
+
+	uffd_api.api = UFFD_API;
+	uffd_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffd_api)) {
+		close(uffd);
+		return -1;
+	}
+
+	uffd_register.range.start = (unsigned long)fault_addr;
+	uffd_register.range.len = getpagesize();
+	uffd_register.mode = UFFDIO_REGISTER_MODE_MISSING;
+	if (ioctl(uffd, UFFDIO_REGISTER, &uffd_register)) {
+		close(uffd);
+		return -1;
+	}
+	return uffd;
+}
+
+static void test_bpf_mod_race_config(const struct test_config *config)
+{
+	void *fault_addr, *skel_fail;
+	struct bpf_mod_race *skel;
+	struct uffd_msg uffd_msg;
+	pthread_t load_mod_thrd;
+	_Atomic int *blockingp;
+	int uffd, ret;
+
+	fault_addr = mmap(0, 4096, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (!ASSERT_NEQ(fault_addr, MAP_FAILED, "mmap for uffd registration"))
+		return;
+
+	if (!ASSERT_OK(unload_bpf_testmod(false), "unload bpf_testmod"))
+		goto end_mmap;
+
+	skel = bpf_mod_race__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_mod_kfunc_race__open"))
+		goto end_module;
+
+	skel->rodata->bpf_mod_race_config.tgid = getpid();
+	skel->rodata->bpf_mod_race_config.inject_error = -4242;
+	skel->rodata->bpf_mod_race_config.fault_addr = fault_addr;
+	if (!ASSERT_OK(bpf_mod_race__load(skel), "bpf_mod___load"))
+		goto end_destroy;
+	blockingp = (_Atomic int *)&skel->bss->bpf_blocking;
+
+	if (!ASSERT_OK(bpf_mod_race__attach(skel), "bpf_mod_kfunc_race__attach"))
+		goto end_destroy;
+
+	uffd = test_setup_uffd(fault_addr);
+	if (!ASSERT_GE(uffd, 0, "userfaultfd open + register address"))
+		goto end_destroy;
+
+	if (!ASSERT_OK(pthread_create(&load_mod_thrd, NULL, load_module_thread, NULL),
+		       "load module thread"))
+		goto end_uffd;
+
+	/* Now, we either fail loading module, or block in bpf prog, spin to find out */
+	while (!atomic_load(&state) && !atomic_load(blockingp))
+		;
+	if (!ASSERT_EQ(state, _TS_INVALID, "module load should block"))
+		goto end_join;
+	if (!ASSERT_EQ(*blockingp, 1, "module load blocked")) {
+		pthread_kill(load_mod_thrd, SIGKILL);
+		goto end_uffd;
+	}
+
+	/* We might have set bpf_blocking to 1, but may have not blocked in
+	 * bpf_copy_from_user. Read userfaultfd descriptor to verify that.
+	 */
+	if (!ASSERT_EQ(read(uffd, &uffd_msg, sizeof(uffd_msg)), sizeof(uffd_msg),
+		       "read uffd block event"))
+		goto end_join;
+	if (!ASSERT_EQ(uffd_msg.event, UFFD_EVENT_PAGEFAULT, "read uffd event is pagefault"))
+		goto end_join;
+
+	/* We know that load_mod_thrd is blocked in the fmod_ret program, the
+	 * module state is still MODULE_STATE_COMING because mod->init hasn't
+	 * returned. This is the time we try to load a program calling kfunc and
+	 * check if we get ENXIO from verifier.
+	 */
+	skel_fail = config->bpf_open_and_load();
+	ret = errno;
+	if (!ASSERT_EQ(skel_fail, NULL, config->str_open)) {
+		/* Close uffd to unblock load_mod_thrd */
+		close(uffd);
+		uffd = -1;
+		while (atomic_load(blockingp) != 2)
+			;
+		ASSERT_OK(kern_sync_rcu(), "kern_sync_rcu");
+		config->bpf_destroy(skel_fail);
+		goto end_join;
+
+	}
+	ASSERT_EQ(ret, ENXIO, "verifier returns ENXIO");
+	ASSERT_EQ(skel->data->res_try_get_module, false, "btf_try_get_module == false");
+
+	close(uffd);
+	uffd = -1;
+end_join:
+	pthread_join(load_mod_thrd, NULL);
+	if (uffd < 0)
+		ASSERT_EQ(atomic_load(&state), TS_MODULE_LOAD_FAIL, "load_mod_thrd success");
+end_uffd:
+	if (uffd >= 0)
+		close(uffd);
+end_destroy:
+	bpf_mod_race__destroy(skel);
+	ASSERT_OK(kern_sync_rcu(), "kern_sync_rcu");
+end_module:
+	unload_bpf_testmod(false);
+	ASSERT_OK(load_bpf_testmod(false), "restore bpf_testmod");
+end_mmap:
+	munmap(fault_addr, 4096);
+	atomic_store(&state, _TS_INVALID);
+}
+
+static const struct test_config ksym_config = {
+	.str_open = "ksym_race__open_and_load",
+	.bpf_open_and_load = (void *)ksym_race__open_and_load,
+	.bpf_destroy = (void *)ksym_race__destroy,
+};
+
+static const struct test_config kfunc_config = {
+	.str_open = "kfunc_call_race__open_and_load",
+	.bpf_open_and_load = (void *)kfunc_call_race__open_and_load,
+	.bpf_destroy = (void *)kfunc_call_race__destroy,
+};
+
+void serial_test_bpf_mod_race(void)
+{
+	if (test__start_subtest("ksym (used_btfs UAF)"))
+		test_bpf_mod_race_config(&ksym_config);
+	if (test__start_subtest("kfunc (kfunc_btf_tab UAF)"))
+		test_bpf_mod_race_config(&kfunc_config);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_nf.c b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
new file mode 100644
index 000000000000..dd6512fa652b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <linux/netfilter/nf_conntrack_common.h>
+#include "test_bpf_nf.skel.h"
+#include "test_bpf_nf_fail.skel.h"
+
+static char log_buf[1024 * 1024];
+
+struct {
+	const char *prog_name;
+	const char *err_msg;
+} test_bpf_nf_fail_tests[] = {
+	{ "alloc_release", "kernel function bpf_ct_release args#0 expected pointer to STRUCT nf_conn but" },
+	{ "insert_insert", "kernel function bpf_ct_insert_entry args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "lookup_insert", "kernel function bpf_ct_insert_entry args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "set_timeout_after_insert", "kernel function bpf_ct_set_timeout args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "set_status_after_insert", "kernel function bpf_ct_set_status args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "change_timeout_after_alloc", "kernel function bpf_ct_change_timeout args#0 expected pointer to STRUCT nf_conn but" },
+	{ "change_status_after_alloc", "kernel function bpf_ct_change_status args#0 expected pointer to STRUCT nf_conn but" },
+	{ "write_not_allowlisted_field", "no write support to nf_conn at off" },
+};
+
+enum {
+	TEST_XDP,
+	TEST_TC_BPF,
+};
+
+#define TIMEOUT_MS		3000
+#define IPS_STATUS_MASK		(IPS_CONFIRMED | IPS_SEEN_REPLY | \
+				 IPS_SRC_NAT_DONE | IPS_DST_NAT_DONE | \
+				 IPS_SRC_NAT | IPS_DST_NAT)
+
+static int connect_to_server(int srv_fd)
+{
+	int fd = -1;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket"))
+		goto out;
+
+	if (!ASSERT_EQ(connect_fd_to_fd(fd, srv_fd, TIMEOUT_MS), 0, "connect_fd_to_fd")) {
+		close(fd);
+		fd = -1;
+	}
+out:
+	return fd;
+}
+
+static void test_bpf_nf_ct(int mode)
+{
+	const char *iptables = "iptables-legacy -t raw %s PREROUTING -j CONNMARK --set-mark 42/0";
+	int srv_fd = -1, client_fd = -1, srv_client_fd = -1;
+	struct sockaddr_in peer_addr = {};
+	struct test_bpf_nf *skel;
+	int prog_fd, err;
+	socklen_t len;
+	u16 srv_port;
+	char cmd[128];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	if (SYS_NOFAIL("iptables-legacy --version")) {
+		fprintf(stdout, "Missing required iptables-legacy tool\n");
+		test__skip();
+		return;
+	}
+
+	skel = test_bpf_nf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_bpf_nf__open_and_load"))
+		return;
+
+	/* Enable connection tracking */
+	snprintf(cmd, sizeof(cmd), iptables, "-A");
+	if (!ASSERT_OK(system(cmd), cmd))
+		goto end;
+
+	srv_fd = start_server(AF_INET, SOCK_STREAM, "127.0.0.1", 0, TIMEOUT_MS);
+	if (!ASSERT_GE(srv_fd, 0, "start_server"))
+		goto end;
+
+	srv_port = get_socket_local_port(srv_fd);
+	if (!ASSERT_GE(srv_port, 0, "get_sock_local_port"))
+		goto end;
+
+	client_fd = connect_to_server(srv_fd);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_server"))
+		goto end;
+
+	len = sizeof(peer_addr);
+	srv_client_fd = accept(srv_fd, (struct sockaddr *)&peer_addr, &len);
+	if (!ASSERT_GE(srv_client_fd, 0, "accept"))
+		goto end;
+	if (!ASSERT_EQ(len, sizeof(struct sockaddr_in), "sockaddr len"))
+		goto end;
+
+	skel->bss->saddr = peer_addr.sin_addr.s_addr;
+	skel->bss->sport = peer_addr.sin_port;
+	skel->bss->daddr = peer_addr.sin_addr.s_addr;
+	skel->bss->dport = srv_port;
+
+	if (mode == TEST_XDP)
+		prog_fd = bpf_program__fd(skel->progs.nf_xdp_ct_test);
+	else
+		prog_fd = bpf_program__fd(skel->progs.nf_skb_ct_test);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run"))
+		goto end;
+
+	ASSERT_EQ(skel->bss->test_einval_bpf_tuple, -EINVAL, "Test EINVAL for NULL bpf_tuple");
+	ASSERT_EQ(skel->bss->test_einval_reserved, -EINVAL, "Test EINVAL for reserved not set to 0");
+	ASSERT_EQ(skel->bss->test_einval_reserved_new, -EINVAL, "Test EINVAL for reserved in new struct not set to 0");
+	ASSERT_EQ(skel->bss->test_einval_netns_id, -EINVAL, "Test EINVAL for netns_id < -1");
+	ASSERT_EQ(skel->bss->test_einval_len_opts, -EINVAL, "Test EINVAL for len__opts != NF_BPF_CT_OPTS_SZ");
+	ASSERT_EQ(skel->bss->test_eproto_l4proto, -EPROTO, "Test EPROTO for l4proto != TCP or UDP");
+	ASSERT_EQ(skel->bss->test_enonet_netns_id, -ENONET, "Test ENONET for bad but valid netns_id");
+	ASSERT_EQ(skel->bss->test_enoent_lookup, -ENOENT, "Test ENOENT for failed lookup");
+	ASSERT_EQ(skel->bss->test_eafnosupport, -EAFNOSUPPORT, "Test EAFNOSUPPORT for invalid len__tuple");
+	ASSERT_EQ(skel->data->test_alloc_entry, 0, "Test for alloc new entry");
+	ASSERT_EQ(skel->data->test_insert_entry, 0, "Test for insert new entry");
+	ASSERT_EQ(skel->data->test_succ_lookup, 0, "Test for successful lookup");
+	/* allow some tolerance for test_delta_timeout value to avoid races. */
+	ASSERT_GT(skel->bss->test_delta_timeout, 8, "Test for min ct timeout update");
+	ASSERT_LE(skel->bss->test_delta_timeout, 10, "Test for max ct timeout update");
+	ASSERT_EQ(skel->bss->test_insert_lookup_mark, 77, "Test for insert and lookup mark value");
+	ASSERT_EQ(skel->bss->test_status, IPS_STATUS_MASK, "Test for ct status update ");
+	ASSERT_EQ(skel->data->test_exist_lookup, 0, "Test existing connection lookup");
+	ASSERT_EQ(skel->bss->test_exist_lookup_mark, 43, "Test existing connection lookup ctmark");
+	ASSERT_EQ(skel->data->test_snat_addr, 0, "Test for source natting");
+	ASSERT_EQ(skel->data->test_dnat_addr, 0, "Test for destination natting");
+	ASSERT_EQ(skel->data->test_ct_zone_id_alloc_entry, 0, "Test for alloc new entry in specified ct zone");
+	ASSERT_EQ(skel->data->test_ct_zone_id_insert_entry, 0, "Test for insert new entry in specified ct zone");
+	ASSERT_EQ(skel->data->test_ct_zone_id_succ_lookup, 0, "Test for successful lookup in specified ct_zone");
+	ASSERT_EQ(skel->bss->test_ct_zone_dir_enoent_lookup, -ENOENT, "Test ENOENT for lookup with wrong ct zone dir");
+	ASSERT_EQ(skel->bss->test_ct_zone_id_enoent_lookup, -ENOENT, "Test ENOENT for lookup in wrong ct zone");
+
+end:
+	if (client_fd != -1)
+		close(client_fd);
+	if (srv_client_fd != -1)
+		close(srv_client_fd);
+	if (srv_fd != -1)
+		close(srv_fd);
+
+	snprintf(cmd, sizeof(cmd), iptables, "-D");
+	system(cmd);
+	test_bpf_nf__destroy(skel);
+}
+
+static void test_bpf_nf_ct_fail(const char *prog_name, const char *err_msg)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf,
+						.kernel_log_size = sizeof(log_buf),
+						.kernel_log_level = 1);
+	struct test_bpf_nf_fail *skel;
+	struct bpf_program *prog;
+	int ret;
+
+	skel = test_bpf_nf_fail__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "test_bpf_nf_fail__open"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto end;
+
+	bpf_program__set_autoload(prog, true);
+
+	ret = test_bpf_nf_fail__load(skel);
+	if (!ASSERT_ERR(ret, "test_bpf_nf_fail__load must fail"))
+		goto end;
+
+	if (!ASSERT_OK_PTR(strstr(log_buf, err_msg), "expected error message")) {
+		fprintf(stderr, "Expected: %s\n", err_msg);
+		fprintf(stderr, "Verifier: %s\n", log_buf);
+	}
+
+end:
+	test_bpf_nf_fail__destroy(skel);
+}
+
+void test_bpf_nf(void)
+{
+	int i;
+	if (test__start_subtest("xdp-ct"))
+		test_bpf_nf_ct(TEST_XDP);
+	if (test__start_subtest("tc-bpf-ct"))
+		test_bpf_nf_ct(TEST_TC_BPF);
+	for (i = 0; i < ARRAY_SIZE(test_bpf_nf_fail_tests); i++) {
+		if (test__start_subtest(test_bpf_nf_fail_tests[i].prog_name))
+			test_bpf_nf_ct_fail(test_bpf_nf_fail_tests[i].prog_name,
+					    test_bpf_nf_fail_tests[i].err_msg);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c
new file mode 100644
index 000000000000..f09d6ac2ef09
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_obj_id.c
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+#define nr_iters 2
+
+void serial_test_bpf_obj_id(void)
+{
+	const __u64 array_magic_value = 0xfaceb00c;
+	const __u32 array_key = 0;
+	const char *file = "./test_obj_id.bpf.o";
+	const char *expected_prog_name = "test_obj_id";
+	const char *expected_map_name = "test_map_id";
+	const __u64 nsec_per_sec = 1000000000;
+
+	struct bpf_object *objs[nr_iters] = {};
+	struct bpf_link *links[nr_iters] = {};
+	struct bpf_program *prog;
+	int prog_fds[nr_iters], map_fds[nr_iters];
+	/* +1 to test for the info_len returned by kernel */
+	struct bpf_prog_info prog_infos[nr_iters + 1];
+	struct bpf_map_info map_infos[nr_iters + 1];
+	struct bpf_link_info link_infos[nr_iters + 1];
+	/* Each prog only uses one map. +1 to test nr_map_ids
+	 * returned by kernel.
+	 */
+	__u32 map_ids[nr_iters + 1];
+	char jited_insns[128], xlated_insns[128], zeros[128], tp_name[128];
+	__u32 i, next_id, info_len, nr_id_found;
+	struct timespec real_time_ts, boot_time_ts;
+	int err = 0;
+	__u64 array_value;
+	uid_t my_uid = getuid();
+	time_t now, load_time;
+
+	err = bpf_prog_get_fd_by_id(0);
+	ASSERT_LT(err, 0, "bpf_prog_get_fd_by_id");
+	ASSERT_EQ(errno, ENOENT, "bpf_prog_get_fd_by_id");
+
+	err = bpf_map_get_fd_by_id(0);
+	ASSERT_LT(err, 0, "bpf_map_get_fd_by_id");
+	ASSERT_EQ(errno, ENOENT, "bpf_map_get_fd_by_id");
+
+	err = bpf_link_get_fd_by_id(0);
+	ASSERT_LT(err, 0, "bpf_map_get_fd_by_id");
+	ASSERT_EQ(errno, ENOENT, "bpf_map_get_fd_by_id");
+
+	/* Check bpf_map_get_info_by_fd() */
+	bzero(zeros, sizeof(zeros));
+	for (i = 0; i < nr_iters; i++) {
+		now = time(NULL);
+		err = bpf_prog_test_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT,
+				    &objs[i], &prog_fds[i]);
+		/* test_obj_id.o is a dumb prog. It should never fail
+		 * to load.
+		 */
+		if (!ASSERT_OK(err, "bpf_prog_test_load"))
+			continue;
+
+		/* Insert a magic value to the map */
+		map_fds[i] = bpf_find_map(__func__, objs[i], "test_map_id");
+		if (!ASSERT_GE(map_fds[i], 0, "bpf_find_map"))
+			goto done;
+
+		err = bpf_map_update_elem(map_fds[i], &array_key,
+					  &array_magic_value, 0);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto done;
+
+		prog = bpf_object__find_program_by_name(objs[i], "test_obj_id");
+		if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+			goto done;
+
+		links[i] = bpf_program__attach(prog);
+		err = libbpf_get_error(links[i]);
+		if (!ASSERT_OK(err, "bpf_program__attach")) {
+			links[i] = NULL;
+			goto done;
+		}
+
+		/* Check getting map info */
+		info_len = sizeof(struct bpf_map_info) * 2;
+		bzero(&map_infos[i], info_len);
+		err = bpf_map_get_info_by_fd(map_fds[i], &map_infos[i],
+					     &info_len);
+		if (!ASSERT_OK(err, "bpf_map_get_info_by_fd") ||
+				!ASSERT_EQ(map_infos[i].type, BPF_MAP_TYPE_ARRAY, "map_type") ||
+				!ASSERT_EQ(map_infos[i].key_size, sizeof(__u32), "key_size") ||
+				!ASSERT_EQ(map_infos[i].value_size, sizeof(__u64), "value_size") ||
+				!ASSERT_EQ(map_infos[i].max_entries, 1, "max_entries") ||
+				!ASSERT_EQ(map_infos[i].map_flags, 0, "map_flags") ||
+				!ASSERT_EQ(info_len, sizeof(struct bpf_map_info), "map_info_len") ||
+				!ASSERT_STREQ((char *)map_infos[i].name, expected_map_name, "map_name"))
+			goto done;
+
+		/* Check getting prog info */
+		info_len = sizeof(struct bpf_prog_info) * 2;
+		bzero(&prog_infos[i], info_len);
+		bzero(jited_insns, sizeof(jited_insns));
+		bzero(xlated_insns, sizeof(xlated_insns));
+		prog_infos[i].jited_prog_insns = ptr_to_u64(jited_insns);
+		prog_infos[i].jited_prog_len = sizeof(jited_insns);
+		prog_infos[i].xlated_prog_insns = ptr_to_u64(xlated_insns);
+		prog_infos[i].xlated_prog_len = sizeof(xlated_insns);
+		prog_infos[i].map_ids = ptr_to_u64(map_ids + i);
+		prog_infos[i].nr_map_ids = 2;
+
+		err = clock_gettime(CLOCK_REALTIME, &real_time_ts);
+		if (!ASSERT_OK(err, "clock_gettime"))
+			goto done;
+
+		err = clock_gettime(CLOCK_BOOTTIME, &boot_time_ts);
+		if (!ASSERT_OK(err, "clock_gettime"))
+			goto done;
+
+		err = bpf_prog_get_info_by_fd(prog_fds[i], &prog_infos[i],
+					      &info_len);
+		load_time = (real_time_ts.tv_sec - boot_time_ts.tv_sec)
+			+ (prog_infos[i].load_time / nsec_per_sec);
+
+		if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd") ||
+				!ASSERT_EQ(prog_infos[i].type, BPF_PROG_TYPE_RAW_TRACEPOINT, "prog_type") ||
+				!ASSERT_EQ(info_len, sizeof(struct bpf_prog_info), "prog_info_len") ||
+				!ASSERT_FALSE((env.jit_enabled && !prog_infos[i].jited_prog_len), "jited_prog_len") ||
+				!ASSERT_FALSE((env.jit_enabled && !memcmp(jited_insns, zeros, sizeof(zeros))),
+					"jited_insns") ||
+				!ASSERT_NEQ(prog_infos[i].xlated_prog_len, 0, "xlated_prog_len") ||
+				!ASSERT_NEQ(memcmp(xlated_insns, zeros, sizeof(zeros)), 0, "xlated_insns") ||
+				!ASSERT_GE(load_time, (now - 60), "load_time") ||
+				!ASSERT_LE(load_time, (now + 60), "load_time") ||
+				!ASSERT_EQ(prog_infos[i].created_by_uid, my_uid, "created_by_uid") ||
+				!ASSERT_EQ(prog_infos[i].nr_map_ids, 1, "nr_map_ids") ||
+				!ASSERT_EQ(*(int *)(long)prog_infos[i].map_ids, map_infos[i].id, "map_ids") ||
+				!ASSERT_STREQ((char *)prog_infos[i].name, expected_prog_name, "prog_name"))
+			goto done;
+
+		/* Check getting link info */
+		info_len = sizeof(struct bpf_link_info) * 2;
+		bzero(&link_infos[i], info_len);
+		link_infos[i].raw_tracepoint.tp_name = ptr_to_u64(&tp_name);
+		link_infos[i].raw_tracepoint.tp_name_len = sizeof(tp_name);
+		err = bpf_link_get_info_by_fd(bpf_link__fd(links[i]),
+					      &link_infos[i], &info_len);
+		if (!ASSERT_OK(err, "bpf_link_get_info_by_fd") ||
+				!ASSERT_EQ(link_infos[i].type, BPF_LINK_TYPE_RAW_TRACEPOINT, "link_type") ||
+				!ASSERT_EQ(link_infos[i].prog_id, prog_infos[i].id, "prog_id") ||
+				!ASSERT_EQ(link_infos[i].raw_tracepoint.tp_name, ptr_to_u64(&tp_name), "&tp_name") ||
+				!ASSERT_STREQ(u64_to_ptr(link_infos[i].raw_tracepoint.tp_name), "sys_enter", "tp_name"))
+			goto done;
+	}
+
+	/* Check bpf_prog_get_next_id() */
+	nr_id_found = 0;
+	next_id = 0;
+	while (!bpf_prog_get_next_id(next_id, &next_id)) {
+		struct bpf_prog_info prog_info = {};
+		__u32 saved_map_id;
+		int prog_fd, cmp_res;
+
+		info_len = sizeof(prog_info);
+
+		prog_fd = bpf_prog_get_fd_by_id(next_id);
+		if (prog_fd < 0 && errno == ENOENT)
+			/* The bpf_prog is in the dead row */
+			continue;
+		if (!ASSERT_GE(prog_fd, 0, "bpf_prog_get_fd_by_id"))
+			break;
+
+		for (i = 0; i < nr_iters; i++)
+			if (prog_infos[i].id == next_id)
+				break;
+
+		if (i == nr_iters)
+			continue;
+
+		nr_id_found++;
+
+		/* Negative test:
+		 * prog_info.nr_map_ids = 1
+		 * prog_info.map_ids = NULL
+		 */
+		prog_info.nr_map_ids = 1;
+		err = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &info_len);
+		if (!ASSERT_ERR(err, "bpf_prog_get_info_by_fd") ||
+				!ASSERT_EQ(errno, EFAULT, "bpf_prog_get_info_by_fd"))
+			break;
+		bzero(&prog_info, sizeof(prog_info));
+		info_len = sizeof(prog_info);
+
+		saved_map_id = *(int *)((long)prog_infos[i].map_ids);
+		prog_info.map_ids = prog_infos[i].map_ids;
+		prog_info.nr_map_ids = 2;
+		err = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &info_len);
+		prog_infos[i].jited_prog_insns = 0;
+		prog_infos[i].xlated_prog_insns = 0;
+		cmp_res = memcmp(&prog_info, &prog_infos[i], info_len);
+
+		ASSERT_OK(err, "bpf_prog_get_info_by_fd");
+		ASSERT_EQ(info_len, sizeof(struct bpf_prog_info), "prog_info_len");
+		ASSERT_OK(cmp_res, "memcmp");
+		ASSERT_EQ(*(int *)(long)prog_info.map_ids, saved_map_id, "map_id");
+		close(prog_fd);
+	}
+	ASSERT_EQ(nr_id_found, nr_iters, "prog_nr_id_found");
+
+	/* Check bpf_map_get_next_id() */
+	nr_id_found = 0;
+	next_id = 0;
+	while (!bpf_map_get_next_id(next_id, &next_id)) {
+		struct bpf_map_info map_info = {};
+		int map_fd, cmp_res;
+
+		info_len = sizeof(map_info);
+
+		map_fd = bpf_map_get_fd_by_id(next_id);
+		if (map_fd < 0 && errno == ENOENT)
+			/* The bpf_map is in the dead row */
+			continue;
+		if (!ASSERT_GE(map_fd, 0, "bpf_map_get_fd_by_id"))
+			break;
+
+		for (i = 0; i < nr_iters; i++)
+			if (map_infos[i].id == next_id)
+				break;
+
+		if (i == nr_iters)
+			continue;
+
+		nr_id_found++;
+
+		err = bpf_map_lookup_elem(map_fd, &array_key, &array_value);
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+			goto done;
+
+		err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len);
+		cmp_res = memcmp(&map_info, &map_infos[i], info_len);
+		ASSERT_OK(err, "bpf_map_get_info_by_fd");
+		ASSERT_EQ(info_len, sizeof(struct bpf_map_info), "info_len");
+		ASSERT_OK(cmp_res, "memcmp");
+		ASSERT_EQ(array_value, array_magic_value, "array_value");
+
+		close(map_fd);
+	}
+	ASSERT_EQ(nr_id_found, nr_iters, "map_nr_id_found");
+
+	/* Check bpf_link_get_next_id() */
+	nr_id_found = 0;
+	next_id = 0;
+	while (!bpf_link_get_next_id(next_id, &next_id)) {
+		struct bpf_link_info link_info;
+		int link_fd, cmp_res;
+
+		info_len = sizeof(link_info);
+		memset(&link_info, 0, info_len);
+
+		link_fd = bpf_link_get_fd_by_id(next_id);
+		if (link_fd < 0 && errno == ENOENT)
+			/* The bpf_link is in the dead row */
+			continue;
+		if (!ASSERT_GE(link_fd, 0, "bpf_link_get_fd_by_id"))
+			break;
+
+		for (i = 0; i < nr_iters; i++)
+			if (link_infos[i].id == next_id)
+				break;
+
+		if (i == nr_iters)
+			continue;
+
+		nr_id_found++;
+
+		err = bpf_link_get_info_by_fd(link_fd, &link_info, &info_len);
+		cmp_res = memcmp(&link_info, &link_infos[i],
+				offsetof(struct bpf_link_info, raw_tracepoint));
+		ASSERT_OK(err, "bpf_link_get_info_by_fd");
+		ASSERT_EQ(info_len, sizeof(link_info), "info_len");
+		ASSERT_OK(cmp_res, "memcmp");
+
+		close(link_fd);
+	}
+	ASSERT_EQ(nr_id_found, nr_iters, "link_nr_id_found");
+
+done:
+	for (i = 0; i < nr_iters; i++) {
+		bpf_link__destroy(links[i]);
+		bpf_object__close(objs[i]);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_obj_pinning.c b/tools/testing/selftests/bpf/prog_tests/bpf_obj_pinning.c
new file mode 100644
index 000000000000..ee0458a5ce78
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_obj_pinning.c
@@ -0,0 +1,269 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <linux/unistd.h>
+#include <linux/mount.h>
+#include <sys/syscall.h>
+#include "bpf/libbpf_internal.h"
+
+static inline int sys_fsopen(const char *fsname, unsigned flags)
+{
+	return syscall(__NR_fsopen, fsname, flags);
+}
+
+static inline int sys_fsconfig(int fs_fd, unsigned cmd, const char *key, const void *val, int aux)
+{
+	return syscall(__NR_fsconfig, fs_fd, cmd, key, val, aux);
+}
+
+static inline int sys_fsmount(int fs_fd, unsigned flags, unsigned ms_flags)
+{
+	return syscall(__NR_fsmount, fs_fd, flags, ms_flags);
+}
+
+__attribute__((unused))
+static inline int sys_move_mount(int from_dfd, const char *from_path,
+			         int to_dfd, const char *to_path,
+			         unsigned int ms_flags)
+{
+	return syscall(__NR_move_mount, from_dfd, from_path, to_dfd, to_path, ms_flags);
+}
+
+static void bpf_obj_pinning_detached(void)
+{
+	LIBBPF_OPTS(bpf_obj_pin_opts, pin_opts);
+	LIBBPF_OPTS(bpf_obj_get_opts, get_opts);
+	int fs_fd = -1, mnt_fd = -1;
+	int map_fd = -1, map_fd2 = -1;
+	int zero = 0, src_value, dst_value, err;
+	const char *map_name = "fsmount_map";
+
+	/* A bunch of below UAPI calls are constructed based on reading:
+	 * https://brauner.io/2023/02/28/mounting-into-mount-namespaces.html
+	 */
+
+	/* create VFS context */
+	fs_fd = sys_fsopen("bpf", 0);
+	if (!ASSERT_GE(fs_fd, 0, "fs_fd"))
+		goto cleanup;
+
+	/* instantiate FS object */
+	err = sys_fsconfig(fs_fd, FSCONFIG_CMD_CREATE, NULL, NULL, 0);
+	if (!ASSERT_OK(err, "fs_create"))
+		goto cleanup;
+
+	/* create O_PATH fd for detached mount */
+	mnt_fd = sys_fsmount(fs_fd, 0, 0);
+	if (!ASSERT_GE(mnt_fd, 0, "mnt_fd"))
+		goto cleanup;
+
+	/* If we wanted to expose detached mount in the file system, we'd do
+	 * something like below. But the whole point is that we actually don't
+	 * even have to expose BPF FS in the file system to be able to work
+	 * (pin/get objects) with it.
+	 *
+	 * err = sys_move_mount(mnt_fd, "", -EBADF, mnt_path, MOVE_MOUNT_F_EMPTY_PATH);
+	 * if (!ASSERT_OK(err, "move_mount"))
+	 *	goto cleanup;
+	 */
+
+	/* create BPF map to pin */
+	map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, map_name, 4, 4, 1, NULL);
+	if (!ASSERT_GE(map_fd, 0, "map_fd"))
+		goto cleanup;
+
+	/* pin BPF map into detached BPF FS through mnt_fd */
+	pin_opts.file_flags = BPF_F_PATH_FD;
+	pin_opts.path_fd = mnt_fd;
+	err = bpf_obj_pin_opts(map_fd, map_name, &pin_opts);
+	if (!ASSERT_OK(err, "map_pin"))
+		goto cleanup;
+
+	/* get BPF map from detached BPF FS through mnt_fd */
+	get_opts.file_flags = BPF_F_PATH_FD;
+	get_opts.path_fd = mnt_fd;
+	map_fd2 = bpf_obj_get_opts(map_name, &get_opts);
+	if (!ASSERT_GE(map_fd2, 0, "map_get"))
+		goto cleanup;
+
+	/* update map through one FD */
+	src_value = 0xcafebeef;
+	err = bpf_map_update_elem(map_fd, &zero, &src_value, 0);
+	ASSERT_OK(err, "map_update");
+
+	/* check values written/read through different FDs do match */
+	dst_value = 0;
+	err = bpf_map_lookup_elem(map_fd2, &zero, &dst_value);
+	ASSERT_OK(err, "map_lookup");
+	ASSERT_EQ(dst_value, src_value, "map_value_eq1");
+	ASSERT_EQ(dst_value, 0xcafebeef, "map_value_eq2");
+
+cleanup:
+	if (map_fd >= 0)
+		ASSERT_OK(close(map_fd), "close_map_fd");
+	if (map_fd2 >= 0)
+		ASSERT_OK(close(map_fd2), "close_map_fd2");
+	if (fs_fd >= 0)
+		ASSERT_OK(close(fs_fd), "close_fs_fd");
+	if (mnt_fd >= 0)
+		ASSERT_OK(close(mnt_fd), "close_mnt_fd");
+}
+
+enum path_kind
+{
+	PATH_STR_ABS,
+	PATH_STR_REL,
+	PATH_FD_REL,
+};
+
+static void validate_pin(int map_fd, const char *map_name, int src_value,
+			 enum path_kind path_kind)
+{
+	LIBBPF_OPTS(bpf_obj_pin_opts, pin_opts);
+	char abs_path[PATH_MAX], old_cwd[PATH_MAX];
+	const char *pin_path = NULL;
+	int zero = 0, dst_value, map_fd2, err;
+
+	snprintf(abs_path, sizeof(abs_path), "/sys/fs/bpf/%s", map_name);
+	old_cwd[0] = '\0';
+
+	switch (path_kind) {
+	case PATH_STR_ABS:
+		/* absolute path */
+		pin_path = abs_path;
+		break;
+	case PATH_STR_REL:
+		/* cwd + relative path */
+		ASSERT_OK_PTR(getcwd(old_cwd, sizeof(old_cwd)), "getcwd");
+		ASSERT_OK(chdir("/sys/fs/bpf"), "chdir");
+		pin_path = map_name;
+		break;
+	case PATH_FD_REL:
+		/* dir fd + relative path */
+		pin_opts.file_flags = BPF_F_PATH_FD;
+		pin_opts.path_fd = open("/sys/fs/bpf", O_PATH);
+		ASSERT_GE(pin_opts.path_fd, 0, "path_fd");
+		pin_path = map_name;
+		break;
+	}
+
+	/* pin BPF map using specified path definition */
+	err = bpf_obj_pin_opts(map_fd, pin_path, &pin_opts);
+	ASSERT_OK(err, "obj_pin");
+
+	/* cleanup */
+	if (path_kind == PATH_FD_REL && pin_opts.path_fd >= 0)
+		close(pin_opts.path_fd);
+	if (old_cwd[0])
+		ASSERT_OK(chdir(old_cwd), "restore_cwd");
+
+	map_fd2 = bpf_obj_get(abs_path);
+	if (!ASSERT_GE(map_fd2, 0, "map_get"))
+		goto cleanup;
+
+	/* update map through one FD */
+	err = bpf_map_update_elem(map_fd, &zero, &src_value, 0);
+	ASSERT_OK(err, "map_update");
+
+	/* check values written/read through different FDs do match */
+	dst_value = 0;
+	err = bpf_map_lookup_elem(map_fd2, &zero, &dst_value);
+	ASSERT_OK(err, "map_lookup");
+	ASSERT_EQ(dst_value, src_value, "map_value_eq");
+cleanup:
+	if (map_fd2 >= 0)
+		ASSERT_OK(close(map_fd2), "close_map_fd2");
+	unlink(abs_path);
+}
+
+static void validate_get(int map_fd, const char *map_name, int src_value,
+			 enum path_kind path_kind)
+{
+	LIBBPF_OPTS(bpf_obj_get_opts, get_opts);
+	char abs_path[PATH_MAX], old_cwd[PATH_MAX];
+	const char *pin_path = NULL;
+	int zero = 0, dst_value, map_fd2, err;
+
+	snprintf(abs_path, sizeof(abs_path), "/sys/fs/bpf/%s", map_name);
+	/* pin BPF map using specified path definition */
+	err = bpf_obj_pin(map_fd, abs_path);
+	if (!ASSERT_OK(err, "pin_map"))
+		return;
+
+	old_cwd[0] = '\0';
+
+	switch (path_kind) {
+	case PATH_STR_ABS:
+		/* absolute path */
+		pin_path = abs_path;
+		break;
+	case PATH_STR_REL:
+		/* cwd + relative path */
+		ASSERT_OK_PTR(getcwd(old_cwd, sizeof(old_cwd)), "getcwd");
+		ASSERT_OK(chdir("/sys/fs/bpf"), "chdir");
+		pin_path = map_name;
+		break;
+	case PATH_FD_REL:
+		/* dir fd + relative path */
+		get_opts.file_flags = BPF_F_PATH_FD;
+		get_opts.path_fd = open("/sys/fs/bpf", O_PATH);
+		ASSERT_GE(get_opts.path_fd, 0, "path_fd");
+		pin_path = map_name;
+		break;
+	}
+
+	map_fd2 = bpf_obj_get_opts(pin_path, &get_opts);
+	if (!ASSERT_GE(map_fd2, 0, "map_get"))
+		goto cleanup;
+
+	/* cleanup */
+	if (path_kind == PATH_FD_REL && get_opts.path_fd >= 0)
+		close(get_opts.path_fd);
+	if (old_cwd[0])
+		ASSERT_OK(chdir(old_cwd), "restore_cwd");
+
+	/* update map through one FD */
+	err = bpf_map_update_elem(map_fd, &zero, &src_value, 0);
+	ASSERT_OK(err, "map_update");
+
+	/* check values written/read through different FDs do match */
+	dst_value = 0;
+	err = bpf_map_lookup_elem(map_fd2, &zero, &dst_value);
+	ASSERT_OK(err, "map_lookup");
+	ASSERT_EQ(dst_value, src_value, "map_value_eq");
+cleanup:
+	if (map_fd2 >= 0)
+		ASSERT_OK(close(map_fd2), "close_map_fd2");
+	unlink(abs_path);
+}
+
+static void bpf_obj_pinning_mounted(enum path_kind path_kind)
+{
+	const char *map_name = "mounted_map";
+	int map_fd;
+
+	/* create BPF map to pin */
+	map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, map_name, 4, 4, 1, NULL);
+	if (!ASSERT_GE(map_fd, 0, "map_fd"))
+		return;
+
+	validate_pin(map_fd, map_name, 100 + (int)path_kind, path_kind);
+	validate_get(map_fd, map_name, 200 + (int)path_kind, path_kind);
+	ASSERT_OK(close(map_fd), "close_map_fd");
+}
+
+void test_bpf_obj_pinning()
+{
+	if (test__start_subtest("detached"))
+		bpf_obj_pinning_detached();
+	if (test__start_subtest("mounted-str-abs"))
+		bpf_obj_pinning_mounted(PATH_STR_ABS);
+	if (test__start_subtest("mounted-str-rel"))
+		bpf_obj_pinning_mounted(PATH_STR_REL);
+	if (test__start_subtest("mounted-fd-rel"))
+		bpf_obj_pinning_mounted(PATH_FD_REL);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c b/tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c
new file mode 100644
index 000000000000..730357cd0c9a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_qdisc.c
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/pkt_sched.h>
+#include <linux/rtnetlink.h>
+#include <test_progs.h>
+
+#include "network_helpers.h"
+#include "bpf_qdisc_fifo.skel.h"
+#include "bpf_qdisc_fq.skel.h"
+#include "bpf_qdisc_fail__incompl_ops.skel.h"
+
+#define LO_IFINDEX 1
+
+static const unsigned int total_bytes = 10 * 1024 * 1024;
+
+static void do_test(char *qdisc)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX,
+			    .attach_point = BPF_TC_QDISC,
+			    .parent = TC_H_ROOT,
+			    .handle = 0x8000000,
+			    .qdisc = qdisc);
+	int srv_fd = -1, cli_fd = -1;
+	int err;
+
+	err = bpf_tc_hook_create(&hook);
+	if (!ASSERT_OK(err, "attach qdisc"))
+		return;
+
+	srv_fd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_OK_FD(srv_fd, "start server"))
+		goto done;
+
+	cli_fd = connect_to_fd(srv_fd, 0);
+	if (!ASSERT_OK_FD(cli_fd, "connect to client"))
+		goto done;
+
+	err = send_recv_data(srv_fd, cli_fd, total_bytes);
+	ASSERT_OK(err, "send_recv_data");
+
+done:
+	if (srv_fd != -1)
+		close(srv_fd);
+	if (cli_fd != -1)
+		close(cli_fd);
+
+	bpf_tc_hook_destroy(&hook);
+}
+
+static void test_fifo(void)
+{
+	struct bpf_qdisc_fifo *fifo_skel;
+
+	fifo_skel = bpf_qdisc_fifo__open_and_load();
+	if (!ASSERT_OK_PTR(fifo_skel, "bpf_qdisc_fifo__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(bpf_qdisc_fifo__attach(fifo_skel), "bpf_qdisc_fifo__attach"))
+		goto out;
+
+	do_test("bpf_fifo");
+out:
+	bpf_qdisc_fifo__destroy(fifo_skel);
+}
+
+static void test_fq(void)
+{
+	struct bpf_qdisc_fq *fq_skel;
+
+	fq_skel = bpf_qdisc_fq__open_and_load();
+	if (!ASSERT_OK_PTR(fq_skel, "bpf_qdisc_fq__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(bpf_qdisc_fq__attach(fq_skel), "bpf_qdisc_fq__attach"))
+		goto out;
+
+	do_test("bpf_fq");
+out:
+	bpf_qdisc_fq__destroy(fq_skel);
+}
+
+static void test_qdisc_attach_to_mq(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook,
+			    .attach_point = BPF_TC_QDISC,
+			    .parent = TC_H_MAKE(1 << 16, 1),
+			    .handle = 0x11 << 16,
+			    .qdisc = "bpf_fifo");
+	struct bpf_qdisc_fifo *fifo_skel;
+	int err;
+
+	fifo_skel = bpf_qdisc_fifo__open_and_load();
+	if (!ASSERT_OK_PTR(fifo_skel, "bpf_qdisc_fifo__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(bpf_qdisc_fifo__attach(fifo_skel), "bpf_qdisc_fifo__attach"))
+		goto out;
+
+	SYS(out, "ip link add veth0 type veth peer veth1");
+	hook.ifindex = if_nametoindex("veth0");
+	SYS(out, "tc qdisc add dev veth0 root handle 1: mq");
+
+	err = bpf_tc_hook_create(&hook);
+	ASSERT_OK(err, "attach qdisc");
+
+	bpf_tc_hook_destroy(&hook);
+
+	SYS(out, "tc qdisc delete dev veth0 root mq");
+out:
+	bpf_qdisc_fifo__destroy(fifo_skel);
+}
+
+static void test_qdisc_attach_to_non_root(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX,
+			    .attach_point = BPF_TC_QDISC,
+			    .parent = TC_H_MAKE(1 << 16, 1),
+			    .handle = 0x11 << 16,
+			    .qdisc = "bpf_fifo");
+	struct bpf_qdisc_fifo *fifo_skel;
+	int err;
+
+	fifo_skel = bpf_qdisc_fifo__open_and_load();
+	if (!ASSERT_OK_PTR(fifo_skel, "bpf_qdisc_fifo__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(bpf_qdisc_fifo__attach(fifo_skel), "bpf_qdisc_fifo__attach"))
+		goto out;
+
+	SYS(out, "tc qdisc add dev lo root handle 1: htb");
+	SYS(out_del_htb, "tc class add dev lo parent 1: classid 1:1 htb rate 75Kbit");
+
+	err = bpf_tc_hook_create(&hook);
+	if (!ASSERT_ERR(err, "attach qdisc"))
+		bpf_tc_hook_destroy(&hook);
+
+out_del_htb:
+	SYS(out, "tc qdisc delete dev lo root htb");
+out:
+	bpf_qdisc_fifo__destroy(fifo_skel);
+}
+
+static void test_incompl_ops(void)
+{
+	struct bpf_qdisc_fail__incompl_ops *skel;
+	struct bpf_link *link;
+
+	skel = bpf_qdisc_fail__incompl_ops__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_qdisc_fifo__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.test);
+	if (!ASSERT_ERR_PTR(link, "bpf_map__attach_struct_ops"))
+		bpf_link__destroy(link);
+
+	bpf_qdisc_fail__incompl_ops__destroy(skel);
+}
+
+static int get_default_qdisc(char *qdisc_name)
+{
+	FILE *f;
+	int num;
+
+	f = fopen("/proc/sys/net/core/default_qdisc", "r");
+	if (!f)
+		return -errno;
+
+	num = fscanf(f, "%s", qdisc_name);
+	fclose(f);
+
+	return num == 1 ? 0 : -EFAULT;
+}
+
+static void test_default_qdisc_attach_to_mq(void)
+{
+	char default_qdisc[IFNAMSIZ] = {};
+	struct bpf_qdisc_fifo *fifo_skel;
+	struct netns_obj *netns = NULL;
+	int err;
+
+	fifo_skel = bpf_qdisc_fifo__open_and_load();
+	if (!ASSERT_OK_PTR(fifo_skel, "bpf_qdisc_fifo__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(bpf_qdisc_fifo__attach(fifo_skel), "bpf_qdisc_fifo__attach"))
+		goto out;
+
+	err = get_default_qdisc(default_qdisc);
+	if (!ASSERT_OK(err, "read sysctl net.core.default_qdisc"))
+		goto out;
+
+	err = write_sysctl("/proc/sys/net/core/default_qdisc", "bpf_fifo");
+	if (!ASSERT_OK(err, "write sysctl net.core.default_qdisc"))
+		goto out;
+
+	netns = netns_new("bpf_qdisc_ns", true);
+	if (!ASSERT_OK_PTR(netns, "netns_new"))
+		goto out;
+
+	SYS(out, "ip link add veth0 type veth peer veth1");
+	SYS(out, "tc qdisc add dev veth0 root handle 1: mq");
+
+	ASSERT_EQ(fifo_skel->bss->init_called, true, "init_called");
+
+	SYS(out, "tc qdisc delete dev veth0 root mq");
+out:
+	netns_free(netns);
+	if (default_qdisc[0])
+		write_sysctl("/proc/sys/net/core/default_qdisc", default_qdisc);
+
+	bpf_qdisc_fifo__destroy(fifo_skel);
+}
+
+void test_ns_bpf_qdisc(void)
+{
+	if (test__start_subtest("fifo"))
+		test_fifo();
+	if (test__start_subtest("fq"))
+		test_fq();
+	if (test__start_subtest("attach to mq"))
+		test_qdisc_attach_to_mq();
+	if (test__start_subtest("attach to non root"))
+		test_qdisc_attach_to_non_root();
+	if (test__start_subtest("incompl_ops"))
+		test_incompl_ops();
+}
+
+void serial_test_bpf_qdisc_default(void)
+{
+	test_default_qdisc_attach_to_mq();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
new file mode 100644
index 000000000000..b7d1b52309d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -0,0 +1,640 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <linux/err.h>
+#include <netinet/tcp.h>
+#include <test_progs.h>
+#include "network_helpers.h"
+#include "bpf_dctcp.skel.h"
+#include "bpf_cubic.skel.h"
+#include "bpf_tcp_nogpl.skel.h"
+#include "tcp_ca_update.skel.h"
+#include "bpf_dctcp_release.skel.h"
+#include "tcp_ca_write_sk_pacing.skel.h"
+#include "tcp_ca_incompl_cong_ops.skel.h"
+#include "tcp_ca_unsupp_cong_op.skel.h"
+#include "tcp_ca_kfunc.skel.h"
+#include "bpf_cc_cubic.skel.h"
+
+static const unsigned int total_bytes = 10 * 1024 * 1024;
+static int expected_stg = 0xeB9F;
+
+struct cb_opts {
+	const char *cc;
+	int map_fd;
+};
+
+static int settcpca(int fd, const char *tcp_ca)
+{
+	int err;
+
+	err = setsockopt(fd, IPPROTO_TCP, TCP_CONGESTION, tcp_ca, strlen(tcp_ca));
+	if (!ASSERT_NEQ(err, -1, "setsockopt"))
+		return -1;
+
+	return 0;
+}
+
+static bool start_test(char *addr_str,
+		       const struct network_helper_opts *srv_opts,
+		       const struct network_helper_opts *cli_opts,
+		       int *srv_fd, int *cli_fd)
+{
+	*srv_fd = start_server_str(AF_INET6, SOCK_STREAM, addr_str, 0, srv_opts);
+	if (!ASSERT_NEQ(*srv_fd, -1, "start_server_str"))
+		goto err;
+
+	/* connect to server */
+	*cli_fd = connect_to_fd_opts(*srv_fd, cli_opts);
+	if (!ASSERT_NEQ(*cli_fd, -1, "connect_to_fd_opts"))
+		goto err;
+
+	return true;
+
+err:
+	if (*srv_fd != -1) {
+		close(*srv_fd);
+		*srv_fd = -1;
+	}
+	if (*cli_fd != -1) {
+		close(*cli_fd);
+		*cli_fd = -1;
+	}
+	return false;
+}
+
+static void do_test(const struct network_helper_opts *opts)
+{
+	int lfd = -1, fd = -1;
+
+	if (!start_test(NULL, opts, opts, &lfd, &fd))
+		goto done;
+
+	ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data");
+
+done:
+	if (lfd != -1)
+		close(lfd);
+	if (fd != -1)
+		close(fd);
+}
+
+static int cc_cb(int fd, void *opts)
+{
+	struct cb_opts *cb_opts = (struct cb_opts *)opts;
+
+	return settcpca(fd, cb_opts->cc);
+}
+
+static void test_cubic(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "bpf_cubic",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct bpf_cubic *cubic_skel;
+	struct bpf_link *link;
+
+	cubic_skel = bpf_cubic__open_and_load();
+	if (!ASSERT_OK_PTR(cubic_skel, "bpf_cubic__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(cubic_skel->maps.cubic);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
+		bpf_cubic__destroy(cubic_skel);
+		return;
+	}
+
+	do_test(&opts);
+
+	ASSERT_EQ(cubic_skel->bss->bpf_cubic_acked_called, 1, "pkts_acked called");
+
+	bpf_link__destroy(link);
+	bpf_cubic__destroy(cubic_skel);
+}
+
+static int stg_post_socket_cb(int fd, void *opts)
+{
+	struct cb_opts *cb_opts = (struct cb_opts *)opts;
+	int err;
+
+	err = settcpca(fd, cb_opts->cc);
+	if (err)
+		return err;
+
+	err = bpf_map_update_elem(cb_opts->map_fd, &fd,
+				  &expected_stg, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(sk_stg_map)"))
+		return err;
+
+	return 0;
+}
+
+static void test_dctcp(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "bpf_dctcp",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct network_helper_opts cli_opts = {
+		.post_socket_cb	= stg_post_socket_cb,
+		.cb_opts	= &cb_opts,
+	};
+	int lfd = -1, fd = -1, tmp_stg, err;
+	struct bpf_dctcp *dctcp_skel;
+	struct bpf_link *link;
+
+	dctcp_skel = bpf_dctcp__open_and_load();
+	if (!ASSERT_OK_PTR(dctcp_skel, "bpf_dctcp__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
+		bpf_dctcp__destroy(dctcp_skel);
+		return;
+	}
+
+	cb_opts.map_fd = bpf_map__fd(dctcp_skel->maps.sk_stg_map);
+	if (!start_test(NULL, &opts, &cli_opts, &lfd, &fd))
+		goto done;
+
+	err = bpf_map_lookup_elem(cb_opts.map_fd, &fd, &tmp_stg);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem(sk_stg_map)") ||
+			!ASSERT_EQ(errno, ENOENT, "bpf_map_lookup_elem(sk_stg_map)"))
+		goto done;
+
+	ASSERT_OK(send_recv_data(lfd, fd, total_bytes), "send_recv_data");
+	ASSERT_EQ(dctcp_skel->bss->stg_result, expected_stg, "stg_result");
+
+done:
+	bpf_link__destroy(link);
+	bpf_dctcp__destroy(dctcp_skel);
+	if (lfd != -1)
+		close(lfd);
+	if (fd != -1)
+		close(fd);
+}
+
+static void test_dctcp_autoattach_map(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "bpf_dctcp",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct bpf_dctcp *dctcp_skel;
+	struct bpf_link *link;
+
+	dctcp_skel = bpf_dctcp__open_and_load();
+	if (!ASSERT_OK_PTR(dctcp_skel, "bpf_dctcp__open_and_load"))
+		return;
+
+	bpf_map__set_autoattach(dctcp_skel->maps.dctcp, true);
+	bpf_map__set_autoattach(dctcp_skel->maps.dctcp_nouse, false);
+
+	if (!ASSERT_OK(bpf_dctcp__attach(dctcp_skel), "bpf_dctcp__attach"))
+		goto destroy;
+
+	/* struct_ops is auto-attached  */
+	link = dctcp_skel->links.dctcp;
+	if (!ASSERT_OK_PTR(link, "link"))
+		goto destroy;
+
+	do_test(&opts);
+
+destroy:
+	bpf_dctcp__destroy(dctcp_skel);
+}
+
+static char *err_str;
+static bool found;
+
+static int libbpf_debug_print(enum libbpf_print_level level,
+			      const char *format, va_list args)
+{
+	const char *prog_name, *log_buf;
+
+	if (level != LIBBPF_WARN ||
+	    !strstr(format, "-- BEGIN PROG LOAD LOG --")) {
+		vprintf(format, args);
+		return 0;
+	}
+
+	prog_name = va_arg(args, char *);
+	log_buf = va_arg(args, char *);
+	if (!log_buf)
+		goto out;
+	if (err_str && strstr(log_buf, err_str) != NULL)
+		found = true;
+out:
+	printf(format, prog_name, log_buf);
+	return 0;
+}
+
+static void test_invalid_license(void)
+{
+	libbpf_print_fn_t old_print_fn;
+	struct bpf_tcp_nogpl *skel;
+
+	err_str = "struct ops programs must have a GPL compatible license";
+	found = false;
+	old_print_fn = libbpf_set_print(libbpf_debug_print);
+
+	skel = bpf_tcp_nogpl__open_and_load();
+	ASSERT_NULL(skel, "bpf_tcp_nogpl");
+	ASSERT_EQ(found, true, "expected_err_msg");
+
+	bpf_tcp_nogpl__destroy(skel);
+	libbpf_set_print(old_print_fn);
+}
+
+static void test_dctcp_fallback(void)
+{
+	int err, lfd = -1, cli_fd = -1, srv_fd = -1;
+	struct bpf_dctcp *dctcp_skel;
+	struct bpf_link *link = NULL;
+	struct cb_opts dctcp = {
+		.cc = "bpf_dctcp",
+	};
+	struct network_helper_opts srv_opts = {
+		.post_socket_cb = cc_cb,
+		.cb_opts = &dctcp,
+	};
+	struct cb_opts cubic = {
+		.cc = "cubic",
+	};
+	struct network_helper_opts cli_opts = {
+		.post_socket_cb = cc_cb,
+		.cb_opts = &cubic,
+	};
+	char srv_cc[16];
+	socklen_t cc_len = sizeof(srv_cc);
+
+	dctcp_skel = bpf_dctcp__open();
+	if (!ASSERT_OK_PTR(dctcp_skel, "dctcp_skel"))
+		return;
+	strcpy(dctcp_skel->rodata->fallback_cc, "cubic");
+	if (!ASSERT_OK(bpf_dctcp__load(dctcp_skel), "bpf_dctcp__load"))
+		goto done;
+
+	link = bpf_map__attach_struct_ops(dctcp_skel->maps.dctcp);
+	if (!ASSERT_OK_PTR(link, "dctcp link"))
+		goto done;
+
+	if (!start_test("::1", &srv_opts, &cli_opts, &lfd, &cli_fd))
+		goto done;
+
+	srv_fd = accept(lfd, NULL, 0);
+	if (!ASSERT_GE(srv_fd, 0, "srv_fd"))
+		goto done;
+	ASSERT_STREQ(dctcp_skel->bss->cc_res, "cubic", "cc_res");
+	ASSERT_EQ(dctcp_skel->bss->tcp_cdg_res, -ENOTSUPP, "tcp_cdg_res");
+	/* All setsockopt(TCP_CONGESTION) in the recurred
+	 * bpf_dctcp->init() should fail with -EBUSY.
+	 */
+	ASSERT_EQ(dctcp_skel->bss->ebusy_cnt, 3, "ebusy_cnt");
+
+	err = getsockopt(srv_fd, SOL_TCP, TCP_CONGESTION, srv_cc, &cc_len);
+	if (!ASSERT_OK(err, "getsockopt(srv_fd, TCP_CONGESTION)"))
+		goto done;
+	ASSERT_STREQ(srv_cc, "cubic", "srv_fd cc");
+
+done:
+	bpf_link__destroy(link);
+	bpf_dctcp__destroy(dctcp_skel);
+	if (lfd != -1)
+		close(lfd);
+	if (srv_fd != -1)
+		close(srv_fd);
+	if (cli_fd != -1)
+		close(cli_fd);
+}
+
+static void test_rel_setsockopt(void)
+{
+	struct bpf_dctcp_release *rel_skel;
+	libbpf_print_fn_t old_print_fn;
+
+	err_str = "program of this type cannot use helper bpf_setsockopt";
+	found = false;
+
+	old_print_fn = libbpf_set_print(libbpf_debug_print);
+	rel_skel = bpf_dctcp_release__open_and_load();
+	libbpf_set_print(old_print_fn);
+
+	ASSERT_ERR_PTR(rel_skel, "rel_skel");
+	ASSERT_TRUE(found, "expected_err_msg");
+
+	bpf_dctcp_release__destroy(rel_skel);
+}
+
+static void test_write_sk_pacing(void)
+{
+	struct tcp_ca_write_sk_pacing *skel;
+	struct bpf_link *link;
+
+	skel = tcp_ca_write_sk_pacing__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.write_sk_pacing);
+	ASSERT_OK_PTR(link, "attach_struct_ops");
+
+	bpf_link__destroy(link);
+	tcp_ca_write_sk_pacing__destroy(skel);
+}
+
+static void test_incompl_cong_ops(void)
+{
+	struct tcp_ca_incompl_cong_ops *skel;
+	struct bpf_link *link;
+
+	skel = tcp_ca_incompl_cong_ops__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	/* That cong_avoid() and cong_control() are missing is only reported at
+	 * this point:
+	 */
+	link = bpf_map__attach_struct_ops(skel->maps.incompl_cong_ops);
+	ASSERT_ERR_PTR(link, "attach_struct_ops");
+
+	bpf_link__destroy(link);
+	tcp_ca_incompl_cong_ops__destroy(skel);
+}
+
+static void test_unsupp_cong_op(void)
+{
+	libbpf_print_fn_t old_print_fn;
+	struct tcp_ca_unsupp_cong_op *skel;
+
+	err_str = "attach to unsupported member get_info";
+	found = false;
+	old_print_fn = libbpf_set_print(libbpf_debug_print);
+
+	skel = tcp_ca_unsupp_cong_op__open_and_load();
+	ASSERT_NULL(skel, "open_and_load");
+	ASSERT_EQ(found, true, "expected_err_msg");
+
+	tcp_ca_unsupp_cong_op__destroy(skel);
+	libbpf_set_print(old_print_fn);
+}
+
+static void test_update_ca(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "tcp_ca_update",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct tcp_ca_update *skel;
+	struct bpf_link *link;
+	int saved_ca1_cnt;
+	int err;
+
+	skel = tcp_ca_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
+		goto out;
+
+	do_test(&opts);
+	saved_ca1_cnt = skel->bss->ca1_cnt;
+	ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
+
+	err = bpf_link__update_map(link, skel->maps.ca_update_2);
+	ASSERT_OK(err, "update_map");
+
+	do_test(&opts);
+	ASSERT_EQ(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
+	ASSERT_GT(skel->bss->ca2_cnt, 0, "ca2_ca2_cnt");
+
+	bpf_link__destroy(link);
+out:
+	tcp_ca_update__destroy(skel);
+}
+
+static void test_update_wrong(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "tcp_ca_update",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct tcp_ca_update *skel;
+	struct bpf_link *link;
+	int saved_ca1_cnt;
+	int err;
+
+	skel = tcp_ca_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
+		goto out;
+
+	do_test(&opts);
+	saved_ca1_cnt = skel->bss->ca1_cnt;
+	ASSERT_GT(saved_ca1_cnt, 0, "ca1_ca1_cnt");
+
+	err = bpf_link__update_map(link, skel->maps.ca_wrong);
+	ASSERT_ERR(err, "update_map");
+
+	do_test(&opts);
+	ASSERT_GT(skel->bss->ca1_cnt, saved_ca1_cnt, "ca2_ca1_cnt");
+
+	bpf_link__destroy(link);
+out:
+	tcp_ca_update__destroy(skel);
+}
+
+static void test_mixed_links(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "tcp_ca_update",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct tcp_ca_update *skel;
+	struct bpf_link *link, *link_nl;
+	int err;
+
+	skel = tcp_ca_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	link_nl = bpf_map__attach_struct_ops(skel->maps.ca_no_link);
+	if (!ASSERT_OK_PTR(link_nl, "attach_struct_ops_nl"))
+		goto out;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	ASSERT_OK_PTR(link, "attach_struct_ops");
+
+	do_test(&opts);
+	ASSERT_GT(skel->bss->ca1_cnt, 0, "ca1_ca1_cnt");
+
+	err = bpf_link__update_map(link, skel->maps.ca_no_link);
+	ASSERT_ERR(err, "update_map");
+
+	bpf_link__destroy(link);
+	bpf_link__destroy(link_nl);
+out:
+	tcp_ca_update__destroy(skel);
+}
+
+static void test_multi_links(void)
+{
+	struct tcp_ca_update *skel;
+	struct bpf_link *link;
+
+	skel = tcp_ca_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	ASSERT_OK_PTR(link, "attach_struct_ops_1st");
+	bpf_link__destroy(link);
+
+	/* A map should be able to be used to create links multiple
+	 * times.
+	 */
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	ASSERT_OK_PTR(link, "attach_struct_ops_2nd");
+	bpf_link__destroy(link);
+
+	tcp_ca_update__destroy(skel);
+}
+
+static void test_link_replace(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, opts);
+	struct tcp_ca_update *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = tcp_ca_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_1);
+	ASSERT_OK_PTR(link, "attach_struct_ops_1st");
+	bpf_link__destroy(link);
+
+	link = bpf_map__attach_struct_ops(skel->maps.ca_update_2);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops_2nd"))
+		goto out;
+
+	/* BPF_F_REPLACE with a wrong old map Fd. It should fail!
+	 *
+	 * With BPF_F_REPLACE, the link should be updated only if the
+	 * old map fd given here matches the map backing the link.
+	 */
+	opts.old_map_fd = bpf_map__fd(skel->maps.ca_update_1);
+	opts.flags = BPF_F_REPLACE;
+	err = bpf_link_update(bpf_link__fd(link),
+			      bpf_map__fd(skel->maps.ca_update_1),
+			      &opts);
+	ASSERT_ERR(err, "bpf_link_update_fail");
+
+	/* BPF_F_REPLACE with a correct old map Fd. It should success! */
+	opts.old_map_fd = bpf_map__fd(skel->maps.ca_update_2);
+	err = bpf_link_update(bpf_link__fd(link),
+			      bpf_map__fd(skel->maps.ca_update_1),
+			      &opts);
+	ASSERT_OK(err, "bpf_link_update_success");
+
+	bpf_link__destroy(link);
+
+out:
+	tcp_ca_update__destroy(skel);
+}
+
+static void test_tcp_ca_kfunc(void)
+{
+	struct tcp_ca_kfunc *skel;
+
+	skel = tcp_ca_kfunc__open_and_load();
+	ASSERT_OK_PTR(skel, "tcp_ca_kfunc__open_and_load");
+	tcp_ca_kfunc__destroy(skel);
+}
+
+static void test_cc_cubic(void)
+{
+	struct cb_opts cb_opts = {
+		.cc = "bpf_cc_cubic",
+	};
+	struct network_helper_opts opts = {
+		.post_socket_cb	= cc_cb,
+		.cb_opts	= &cb_opts,
+	};
+	struct bpf_cc_cubic *cc_cubic_skel;
+	struct bpf_link *link;
+
+	cc_cubic_skel = bpf_cc_cubic__open_and_load();
+	if (!ASSERT_OK_PTR(cc_cubic_skel, "bpf_cc_cubic__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(cc_cubic_skel->maps.cc_cubic);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
+		bpf_cc_cubic__destroy(cc_cubic_skel);
+		return;
+	}
+
+	do_test(&opts);
+
+	bpf_link__destroy(link);
+	bpf_cc_cubic__destroy(cc_cubic_skel);
+}
+
+void test_bpf_tcp_ca(void)
+{
+	if (test__start_subtest("dctcp"))
+		test_dctcp();
+	if (test__start_subtest("cubic"))
+		test_cubic();
+	if (test__start_subtest("invalid_license"))
+		test_invalid_license();
+	if (test__start_subtest("dctcp_fallback"))
+		test_dctcp_fallback();
+	if (test__start_subtest("rel_setsockopt"))
+		test_rel_setsockopt();
+	if (test__start_subtest("write_sk_pacing"))
+		test_write_sk_pacing();
+	if (test__start_subtest("incompl_cong_ops"))
+		test_incompl_cong_ops();
+	if (test__start_subtest("unsupp_cong_op"))
+		test_unsupp_cong_op();
+	if (test__start_subtest("update_ca"))
+		test_update_ca();
+	if (test__start_subtest("update_wrong"))
+		test_update_wrong();
+	if (test__start_subtest("mixed_links"))
+		test_mixed_links();
+	if (test__start_subtest("multi_links"))
+		test_multi_links();
+	if (test__start_subtest("link_replace"))
+		test_link_replace();
+	if (test__start_subtest("tcp_ca_kfunc"))
+		test_tcp_ca_kfunc();
+	if (test__start_subtest("cc_cubic"))
+		test_cc_cubic();
+	if (test__start_subtest("dctcp_autoattach_map"))
+		test_dctcp_autoattach_map();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
new file mode 100644
index 000000000000..73f669014b69
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_verif_scale.c
@@ -0,0 +1,233 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <test_progs.h>
+static int libbpf_debug_print(enum libbpf_print_level level,
+			      const char *format, va_list args)
+{
+	if (level != LIBBPF_DEBUG) {
+		vprintf(format, args);
+		return 0;
+	}
+
+	if (!strstr(format, "verifier log"))
+		return 0;
+	vprintf("%s", args);
+	return 0;
+}
+
+extern int extra_prog_load_log_flags;
+
+static int check_load(const char *file, enum bpf_prog_type type)
+{
+	struct bpf_object *obj = NULL;
+	struct bpf_program *prog;
+	int err;
+
+	obj = bpf_object__open_file(file, NULL);
+	err = libbpf_get_error(obj);
+	if (err)
+		return err;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (!prog) {
+		err = -ENOENT;
+		goto err_out;
+	}
+
+	bpf_program__set_type(prog, type);
+	bpf_program__set_flags(prog, testing_prog_flags());
+	bpf_program__set_log_level(prog, 4 | extra_prog_load_log_flags);
+
+	err = bpf_object__load(obj);
+
+err_out:
+	bpf_object__close(obj);
+	return err;
+}
+
+static void scale_test(const char *file,
+		       enum bpf_prog_type attach_type,
+		       bool should_fail)
+{
+	libbpf_print_fn_t old_print_fn = NULL;
+	int err;
+
+	if (env.verifier_stats) {
+		test__force_log();
+		old_print_fn = libbpf_set_print(libbpf_debug_print);
+	}
+
+	err = check_load(file, attach_type);
+	if (should_fail)
+		ASSERT_ERR(err, "expect_error");
+	else
+		ASSERT_OK(err, "expect_success");
+
+	if (env.verifier_stats)
+		libbpf_set_print(old_print_fn);
+}
+
+void test_verif_scale1()
+{
+	scale_test("test_verif_scale1.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
+}
+
+void test_verif_scale2()
+{
+	scale_test("test_verif_scale2.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
+}
+
+void test_verif_scale3()
+{
+	scale_test("test_verif_scale3.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
+}
+
+void test_verif_scale_pyperf_global()
+{
+	scale_test("pyperf_global.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf_subprogs()
+{
+	scale_test("pyperf_subprogs.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf50()
+{
+	/* full unroll by llvm */
+	scale_test("pyperf50.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf100()
+{
+	/* full unroll by llvm */
+	scale_test("pyperf100.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf180()
+{
+	/* full unroll by llvm */
+	scale_test("pyperf180.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf600()
+{
+	/* partial unroll. llvm will unroll loop ~150 times.
+	 * C loop count -> 600.
+	 * Asm loop count -> 4.
+	 * 16k insns in loop body.
+	 * Total of 5 such loops. Total program size ~82k insns.
+	 */
+	scale_test("pyperf600.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf600_bpf_loop(void)
+{
+	/* use the bpf_loop helper*/
+	scale_test("pyperf600_bpf_loop.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf600_nounroll()
+{
+	/* no unroll at all.
+	 * C loop count -> 600.
+	 * ASM loop count -> 600.
+	 * ~110 insns in loop body.
+	 * Total of 5 such loops. Total program size ~1500 insns.
+	 */
+	scale_test("pyperf600_nounroll.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_pyperf600_iter()
+{
+	/* open-coded BPF iterator version */
+	scale_test("pyperf600_iter.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_loop1()
+{
+	scale_test("loop1.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_loop2()
+{
+	scale_test("loop2.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_loop3_fail()
+{
+	scale_test("loop3.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, true /* fails */);
+}
+
+void test_verif_scale_loop4()
+{
+	scale_test("loop4.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
+}
+
+void test_verif_scale_loop5()
+{
+	scale_test("loop5.bpf.o", BPF_PROG_TYPE_SCHED_CLS, false);
+}
+
+void test_verif_scale_loop6()
+{
+	scale_test("loop6.bpf.o", BPF_PROG_TYPE_KPROBE, false);
+}
+
+void test_verif_scale_strobemeta()
+{
+	/* partial unroll. 19k insn in a loop.
+	 * Total program size 20.8k insn.
+	 * ~350k processed_insns
+	 */
+	scale_test("strobemeta.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_strobemeta_bpf_loop(void)
+{
+	/* use the bpf_loop helper*/
+	scale_test("strobemeta_bpf_loop.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_strobemeta_nounroll1()
+{
+	/* no unroll, tiny loops */
+	scale_test("strobemeta_nounroll1.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_strobemeta_nounroll2()
+{
+	/* no unroll, tiny loops */
+	scale_test("strobemeta_nounroll2.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_strobemeta_subprogs()
+{
+	/* non-inlined subprogs */
+	scale_test("strobemeta_subprogs.bpf.o", BPF_PROG_TYPE_RAW_TRACEPOINT, false);
+}
+
+void test_verif_scale_sysctl_loop1()
+{
+	scale_test("test_sysctl_loop1.bpf.o", BPF_PROG_TYPE_CGROUP_SYSCTL, false);
+}
+
+void test_verif_scale_sysctl_loop2()
+{
+	scale_test("test_sysctl_loop2.bpf.o", BPF_PROG_TYPE_CGROUP_SYSCTL, false);
+}
+
+void test_verif_scale_xdp_loop()
+{
+	scale_test("test_xdp_loop.bpf.o", BPF_PROG_TYPE_XDP, false);
+}
+
+void test_verif_scale_seg6_loop()
+{
+	scale_test("test_seg6_loop.bpf.o", BPF_PROG_TYPE_LWT_SEG6LOCAL, false);
+}
+
+void test_verif_twfw()
+{
+	scale_test("twfw.bpf.o", BPF_PROG_TYPE_CGROUP_SKB, false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
new file mode 100644
index 000000000000..054ecb6b1e9f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -0,0 +1,8320 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018 Facebook */
+
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/filter.h>
+#include <linux/unistd.h>
+#include <bpf/bpf.h>
+#include <libelf.h>
+#include <gelf.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <assert.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+
+#include "bpf_util.h"
+#include "../test_btf.h"
+#include "test_progs.h"
+
+#define MAX_INSNS	512
+#define MAX_SUBPROGS	16
+
+static int duration = 0;
+static bool always_log;
+
+#undef CHECK
+#define CHECK(condition, format...) _CHECK(condition, "check", duration, format)
+
+#define NAME_TBD 0xdeadb33f
+
+#define NAME_NTH(N) (0xfffe0000 | N)
+#define IS_NAME_NTH(X) ((X & 0xffff0000) == 0xfffe0000)
+#define GET_NAME_NTH_IDX(X) (X & 0x0000ffff)
+
+#define MAX_NR_RAW_U32 1024
+#define BTF_LOG_BUF_SIZE 65535
+
+static char btf_log_buf[BTF_LOG_BUF_SIZE];
+
+static struct btf_header hdr_tmpl = {
+	.magic = BTF_MAGIC,
+	.version = BTF_VERSION,
+	.hdr_len = sizeof(struct btf_header),
+};
+
+/* several different mapv kinds(types) supported by pprint */
+enum pprint_mapv_kind_t {
+	PPRINT_MAPV_KIND_BASIC = 0,
+	PPRINT_MAPV_KIND_INT128,
+};
+
+struct btf_raw_test {
+	const char *descr;
+	const char *str_sec;
+	const char *map_name;
+	const char *err_str;
+	__u32 raw_types[MAX_NR_RAW_U32];
+	__u32 str_sec_size;
+	enum bpf_map_type map_type;
+	__u32 key_size;
+	__u32 value_size;
+	__u32 key_type_id;
+	__u32 value_type_id;
+	__u32 max_entries;
+	bool btf_load_err;
+	bool map_create_err;
+	bool ordered_map;
+	bool lossless_map;
+	bool percpu_map;
+	int hdr_len_delta;
+	int type_off_delta;
+	int str_off_delta;
+	int str_len_delta;
+	enum pprint_mapv_kind_t mapv_kind;
+};
+
+#define BTF_STR_SEC(str) \
+	.str_sec = str, .str_sec_size = sizeof(str)
+
+static struct btf_raw_test raw_tests[] = {
+/* enum E {
+ *     E0,
+ *     E1,
+ * };
+ *
+ * struct A {
+ *	unsigned long long m;
+ *	int n;
+ *	char o;
+ *	[3 bytes hole]
+ *	int p[8];
+ *	int q[4][8];
+ *	enum E r;
+ * };
+ */
+{
+	.descr = "struct test #1",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 6), 180),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		BTF_MEMBER_ENC(NAME_TBD, 6, 384),/* int q[4][8]		*/
+		BTF_MEMBER_ENC(NAME_TBD, 7, 1408), /* enum E r		*/
+		/* } */
+		/* int[4][8] */
+		BTF_TYPE_ARRAY_ENC(4, 1, 4),			/* [6] */
+		/* enum E */					/* [7] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0q\0r\0E\0E0\0E1"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_test1_map",
+	.key_size = sizeof(int),
+	.value_size = 180,
+	.key_type_id = 1,
+	.value_type_id = 5,
+	.max_entries = 4,
+},
+
+/* typedef struct b Struct_B;
+ *
+ * struct A {
+ *     int m;
+ *     struct b n[4];
+ *     const Struct_B o[4];
+ * };
+ *
+ * struct B {
+ *     int m;
+ *     int n;
+ * };
+ */
+{
+	.descr = "struct test #2",
+	.raw_types = {
+		/* int */					/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* struct b [4] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(4, 1, 4),
+
+		/* struct A { */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 3), 68),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct B n[4]	*/
+		BTF_MEMBER_ENC(NAME_TBD, 8, 288),/* const Struct_B o[4];*/
+		/* } */
+
+		/* struct B { */				/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */
+		/* } */
+
+		/* const int */					/* [5] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1),
+		/* typedef struct b Struct_B */	/* [6] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 4),
+		/* const Struct_B */				/* [7] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 6),
+		/* const Struct_B [4] */			/* [8] */
+		BTF_TYPE_ARRAY_ENC(7, 1, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0B\0m\0n\0Struct_B",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0B\0m\0n\0Struct_B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_test2_map",
+	.key_size = sizeof(int),
+	.value_size = 68,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+},
+{
+	.descr = "struct test #3 Invalid member offset",
+	.raw_types = {
+		/* int */					/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int64 */					/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),
+
+		/* struct A { */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 16),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),	/* int m;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),		/* int64 n; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0",
+	.str_sec_size = sizeof("\0A\0m\0n\0"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_test3_map",
+	.key_size = sizeof(int),
+	.value_size = 16,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member bits_offset",
+},
+/*
+ * struct A {
+ *	unsigned long long m;
+ *	int n;
+ *	char o;
+ *	[3 bytes hole]
+ *	int p[8];
+ * };
+ */
+{
+	.descr = "global data test #1",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_test1_map",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 1,
+	.value_type_id = 5,
+	.max_entries = 4,
+},
+/*
+ * struct A {
+ *	unsigned long long m;
+ *	int n;
+ *	char o;
+ *	[3 bytes hole]
+ *	int p[8];
+ * };
+ * static struct A t; <- in .bss
+ */
+{
+	.descr = "global data test #2",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* .bss section */				/* [7] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
+		BTF_VAR_SECINFO_ENC(6, 0, 48),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 0,
+	.value_type_id = 7,
+	.max_entries = 1,
+},
+{
+	.descr = "global data test #3",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* static int t */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0t\0.bss",
+	.str_sec_size = sizeof("\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 3,
+	.max_entries = 1,
+},
+{
+	.descr = "global data test #4, unsupported linkage",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* static int t */
+		BTF_VAR_ENC(NAME_TBD, 1, 2),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0t\0.bss",
+	.str_sec_size = sizeof("\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 3,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Linkage not supported",
+},
+{
+	.descr = "global data test #5, invalid var type",
+	.raw_types = {
+		/* static void t */
+		BTF_VAR_ENC(NAME_TBD, 0, 0),			/* [1] */
+		/* .bss section */				/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(1, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0t\0.bss",
+	.str_sec_size = sizeof("\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #6, invalid var type (fwd type)",
+	.raw_types = {
+		/* union A */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
+		/* static union A t */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type",
+},
+{
+	.descr = "global data test #7, invalid var type (fwd type)",
+	.raw_types = {
+		/* union A */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
+		/* static union A t */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(1, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type",
+},
+{
+	.descr = "global data test #8, invalid var size",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* .bss section */				/* [7] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 48),
+		BTF_VAR_SECINFO_ENC(6, 0, 47),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 0,
+	.value_type_id = 7,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid size",
+},
+{
+	.descr = "global data test #9, invalid var size",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* .bss section */				/* [7] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
+		BTF_VAR_SECINFO_ENC(6, 0, 48),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 0,
+	.value_type_id = 7,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid size",
+},
+{
+	.descr = "global data test #10, invalid var size",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* .bss section */				/* [7] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 46),
+		BTF_VAR_SECINFO_ENC(6, 0, 46),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 0,
+	.value_type_id = 7,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid size",
+},
+{
+	.descr = "global data test #11, multiple section members",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* static int u */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [7] */
+		/* .bss section */				/* [8] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
+		BTF_VAR_SECINFO_ENC(6, 10, 48),
+		BTF_VAR_SECINFO_ENC(7, 58, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 62,
+	.key_type_id = 0,
+	.value_type_id = 8,
+	.max_entries = 1,
+},
+{
+	.descr = "global data test #12, invalid offset",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* static int u */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [7] */
+		/* .bss section */				/* [8] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
+		BTF_VAR_SECINFO_ENC(6, 10, 48),
+		BTF_VAR_SECINFO_ENC(7, 60, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 62,
+	.key_type_id = 0,
+	.value_type_id = 8,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid offset+size",
+},
+{
+	.descr = "global data test #13, invalid offset",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* static int u */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [7] */
+		/* .bss section */				/* [8] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
+		BTF_VAR_SECINFO_ENC(6, 10, 48),
+		BTF_VAR_SECINFO_ENC(7, 12, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 62,
+	.key_type_id = 0,
+	.value_type_id = 8,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid offset",
+},
+{
+	.descr = "global data test #14, invalid offset",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* unsigned long long */
+		BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),		/* [2] */
+		/* char */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),	/* [3] */
+		/* int[8] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 8),			/* [4] */
+		/* struct A { */				/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 4), 48),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* unsigned long long m;*/
+		BTF_MEMBER_ENC(NAME_TBD, 1, 64),/* int n;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 96),/* char o;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 128),/* int p[8]		*/
+		/* } */
+		/* static struct A t */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		/* static int u */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [7] */
+		/* .bss section */				/* [8] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2), 62),
+		BTF_VAR_SECINFO_ENC(7, 58, 4),
+		BTF_VAR_SECINFO_ENC(6, 10, 48),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n\0o\0p\0t\0u\0.bss",
+	.str_sec_size = sizeof("\0A\0m\0n\0o\0p\0t\0u\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 62,
+	.key_type_id = 0,
+	.value_type_id = 8,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid offset",
+},
+{
+	.descr = "global data test #15, not var kind",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(1, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0.bss",
+	.str_sec_size = sizeof("\0A\0t\0.bss"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 3,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Not a VAR kind member",
+},
+{
+	.descr = "global data test #16, invalid var referencing sec",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [2] */
+		BTF_VAR_ENC(NAME_TBD, 2, 0),			/* [3] */
+		/* a section */					/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(3, 0, 4),
+		/* a section */					/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(6, 0, 4),
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #17, invalid var referencing var",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_VAR_ENC(NAME_TBD, 2, 0),			/* [3] */
+		/* a section */					/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(3, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #18, invalid var loop",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 2, 0),			/* [2] */
+		/* .bss section */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0aaa",
+	.str_sec_size = sizeof("\0A\0t\0aaa"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #19, invalid var referencing var",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 3, 0),			/* [2] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [3] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #20, invalid ptr referencing var",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* PTR type_id=3	*/			/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3),
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [3] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "global data test #21, var included in struct",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* struct A { */				/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* VAR type_id=3; */
+		/* } */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [3] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid member",
+},
+{
+	.descr = "global data test #22, array of var",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 4),			/* [2] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [3] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0t\0s\0a\0a",
+	.str_sec_size = sizeof("\0A\0t\0s\0a\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 0,
+	.value_type_id = 4,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid elem",
+},
+{
+	.descr = "var after datasec, ptr followed by modifier",
+	.raw_types = {
+		/* .bss section */				/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 2),
+			sizeof(void*)+4),
+		BTF_VAR_SECINFO_ENC(4, 0, sizeof(void*)),
+		BTF_VAR_SECINFO_ENC(6, sizeof(void*), 4),
+		/* int */					/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int* */					/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
+		BTF_VAR_ENC(NAME_TBD, 3, 0),			/* [4] */
+		/* const int */					/* [5] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
+		BTF_VAR_ENC(NAME_TBD, 5, 0),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b\0c\0",
+	.str_sec_size = sizeof("\0a\0b\0c\0"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = ".bss",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void*)+4,
+	.key_type_id = 0,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+/* Test member exceeds the size of struct.
+ *
+ * struct A {
+ *     int m;
+ *     int n;
+ * };
+ */
+{
+	.descr = "size check test #1",
+	.raw_types = {
+		/* int */					/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* struct A { */				/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 -  1),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),/* int n; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n",
+	.str_sec_size = sizeof("\0A\0m\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "size_check1_map",
+	.key_size = sizeof(int),
+	.value_size = 1,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+/* Test member exceeds the size of struct
+ *
+ * struct A {
+ *     int m;
+ *     int n[2];
+ * };
+ */
+{
+	.descr = "size check test #2",
+	.raw_types = {
+		/* int */					/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
+		/* int[2] */					/* [2] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 2),
+		/* struct A { */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 3 - 1),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* int n[2]; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n",
+	.str_sec_size = sizeof("\0A\0m\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "size_check2_map",
+	.key_size = sizeof(int),
+	.value_size = 1,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+/* Test member exceeds the size of struct
+ *
+ * struct A {
+ *     int m;
+ *     void *n;
+ * };
+ */
+{
+	.descr = "size check test #3",
+	.raw_types = {
+		/* int */					/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
+		/* void* */					/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
+		/* struct A { */				/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) + sizeof(void *) - 1),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* void *n; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0n",
+	.str_sec_size = sizeof("\0A\0m\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "size_check3_map",
+	.key_size = sizeof(int),
+	.value_size = 1,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+/* Test member exceeds the size of struct
+ *
+ * enum E {
+ *     E0,
+ *     E1,
+ * };
+ *
+ * struct A {
+ *     int m;
+ *     enum E n;
+ * };
+ */
+{
+	.descr = "size check test #4",
+	.raw_types = {
+		/* int */			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
+		/* enum E { */			/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), sizeof(int)),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		/* } */
+		/* struct A { */		/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), sizeof(int) * 2 - 1),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int m; */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* enum E n; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0E\0E0\0E1\0A\0m\0n",
+	.str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "size_check4_map",
+	.key_size = sizeof(int),
+	.value_size = 1,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+/* Test member unexceeds the size of struct
+ *
+ * enum E {
+ *     E0,
+ *     E1,
+ * };
+ *
+ * struct A {
+ *     char m;
+ *     enum E __attribute__((packed)) n;
+ * };
+ */
+{
+	.descr = "size check test #5",
+	.raw_types = {
+		/* int */			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, sizeof(int)),
+		/* char */			/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 8, 1),
+		/* enum E { */			/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 1),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		/* } */
+		/* struct A { */		/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 2),
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),	/* char m; */
+		BTF_MEMBER_ENC(NAME_TBD, 3, 8),/* enum E __attribute__((packed)) n; */
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0E\0E0\0E1\0A\0m\0n",
+	.str_sec_size = sizeof("\0E\0E0\0E1\0A\0m\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "size_check5_map",
+	.key_size = sizeof(int),
+	.value_size = 2,
+	.key_type_id = 1,
+	.value_type_id = 4,
+	.max_entries = 4,
+},
+
+/* typedef const void * const_void_ptr;
+ * struct A {
+ *	const_void_ptr m;
+ * };
+ */
+{
+	.descr = "void test #1",
+	.raw_types = {
+		/* int */		/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void */	/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		/* const void* */	/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
+		/* typedef const void * const_void_ptr */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),	/* [4] */
+		/* struct A { */	/* [5] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
+		/* const_void_ptr m; */
+		BTF_MEMBER_ENC(NAME_TBD, 4, 0),
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0const_void_ptr\0A\0m",
+	.str_sec_size = sizeof("\0const_void_ptr\0A\0m"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "void_test1_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *),
+	.key_type_id = 1,
+	.value_type_id = 4,
+	.max_entries = 4,
+},
+
+/* struct A {
+ *     const void m;
+ * };
+ */
+{
+	.descr = "void test #2",
+	.raw_types = {
+		/* int */		/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void */	/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		/* struct A { */	/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 8),
+		/* const void m; */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		/* } */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m",
+	.str_sec_size = sizeof("\0A\0m"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "void_test2_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *),
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member",
+},
+
+/* typedef const void * const_void_ptr;
+ * const_void_ptr[4]
+ */
+{
+	.descr = "void test #3",
+	.raw_types = {
+		/* int */		/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void */	/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		/* const void* */	/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 2),
+		/* typedef const void * const_void_ptr */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),	/* [4] */
+		/* const_void_ptr[4] */
+		BTF_TYPE_ARRAY_ENC(4, 1, 4),	/* [5] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0const_void_ptr",
+	.str_sec_size = sizeof("\0const_void_ptr"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "void_test3_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *) * 4,
+	.key_type_id = 1,
+	.value_type_id = 5,
+	.max_entries = 4,
+},
+
+/* const void[4]  */
+{
+	.descr = "void test #4",
+	.raw_types = {
+		/* int */		/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void */	/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		/* const void[4] */	/* [3] */
+		BTF_TYPE_ARRAY_ENC(2, 1, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m",
+	.str_sec_size = sizeof("\0A\0m"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "void_test4_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *) * 4,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid elem",
+},
+
+/* Array_A  <------------------+
+ *     elem_type == Array_B    |
+ *                    |        |
+ *                    |        |
+ * Array_B  <-------- +        |
+ *      elem_type == Array A --+
+ */
+{
+	.descr = "loop test #1",
+	.raw_types = {
+		/* int */			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* Array_A */			/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 8),
+		/* Array_B */			/* [3] */
+		BTF_TYPE_ARRAY_ENC(2, 1, 8),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test1_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(sizeof(int) * 8),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+/* typedef is _before_ the BTF type of Array_A and Array_B
+ *
+ * typedef Array_B int_array;
+ *
+ * Array_A  <------------------+
+ *     elem_type == int_array  |
+ *                    |        |
+ *                    |        |
+ * Array_B  <-------- +        |
+ *      elem_type == Array_A --+
+ */
+{
+	.descr = "loop test #2",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* typedef Array_B int_array */
+		BTF_TYPEDEF_ENC(1, 4),				/* [2] */
+		/* Array_A */
+		BTF_TYPE_ARRAY_ENC(2, 1, 8),			/* [3] */
+		/* Array_B */
+		BTF_TYPE_ARRAY_ENC(3, 1, 8),			/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int_array\0",
+	.str_sec_size = sizeof("\0int_array"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test2_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(sizeof(int) * 8),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+/* Array_A  <------------------+
+ *     elem_type == Array_B    |
+ *                    |        |
+ *                    |        |
+ * Array_B  <-------- +        |
+ *      elem_type == Array_A --+
+ */
+{
+	.descr = "loop test #3",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* Array_A */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 8),
+		/* Array_B */				/* [3] */
+		BTF_TYPE_ARRAY_ENC(2, 1, 8),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test3_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(sizeof(int) * 8),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+/* typedef is _between_ the BTF type of Array_A and Array_B
+ *
+ * typedef Array_B int_array;
+ *
+ * Array_A  <------------------+
+ *     elem_type == int_array  |
+ *                    |        |
+ *                    |        |
+ * Array_B  <-------- +        |
+ *      elem_type == Array_A --+
+ */
+{
+	.descr = "loop test #4",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* Array_A */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 8),
+		/* typedef Array_B int_array */		/* [3] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),
+		/* Array_B */				/* [4] */
+		BTF_TYPE_ARRAY_ENC(2, 1, 8),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int_array\0",
+	.str_sec_size = sizeof("\0int_array"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test4_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(sizeof(int) * 8),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+/* typedef struct B Struct_B
+ *
+ * struct A {
+ *     int x;
+ *     Struct_B y;
+ * };
+ *
+ * struct B {
+ *     int x;
+ *     struct A y;
+ * };
+ */
+{
+	.descr = "loop test #5",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* struct A */					/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int x;	*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 32),/* Struct_B y;	*/
+		/* typedef struct B Struct_B */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		/* struct B */					/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int x;	*/
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A y;	*/
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0x\0y\0Struct_B\0B\0x\0y",
+	.str_sec_size = sizeof("\0A\0x\0y\0Struct_B\0B\0x\0y"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test5_map",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+/* struct A {
+ *     int x;
+ *     struct A array_a[4];
+ * };
+ */
+{
+	.descr = "loop test #6",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 4),			/* [2] */
+		/* struct A */					/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),	/* int x;		*/
+		BTF_MEMBER_ENC(NAME_TBD, 2, 32),/* struct A array_a[4];	*/
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0x\0y",
+	.str_sec_size = sizeof("\0A\0x\0y"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test6_map",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+{
+	.descr = "loop test #7",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* struct A { */			/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
+		/*     const void *m;	*/
+		BTF_MEMBER_ENC(NAME_TBD, 3, 0),
+		/* CONST type_id=3	*/		/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
+		/* PTR type_id=2	*/		/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 3),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m",
+	.str_sec_size = sizeof("\0A\0m"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test7_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+{
+	.descr = "loop test #8",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* struct A { */			/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
+		/*     const void *m;	*/
+		BTF_MEMBER_ENC(NAME_TBD, 4, 0),
+		/* struct B { */			/* [3] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), sizeof(void *)),
+		/*     const void *n;	*/
+		BTF_MEMBER_ENC(NAME_TBD, 6, 0),
+		/* CONST type_id=5	*/		/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 5),
+		/* PTR type_id=6	*/		/* [5] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 6),
+		/* CONST type_id=7	*/		/* [6] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 7),
+		/* PTR type_id=4	*/		/* [7] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0m\0B\0n",
+	.str_sec_size = sizeof("\0A\0m\0B\0n"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "loop_test8_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(void *),
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Loop detected",
+},
+
+{
+	.descr = "string section does not end with null",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int") - 1,
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid string section",
+},
+
+{
+	.descr = "empty string section",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = 0,
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid string section",
+},
+
+{
+	.descr = "empty type section",
+	.raw_types = {
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "No type found",
+},
+
+{
+	.descr = "btf_header test. Longer hdr_len",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.hdr_len_delta = 4,
+	.err_str = "Unsupported btf_header",
+},
+
+{
+	.descr = "btf_header test. Gap between hdr and type",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.type_off_delta = 4,
+	.err_str = "Unsupported section found",
+},
+
+{
+	.descr = "btf_header test. Gap between type and str",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.str_off_delta = 4,
+	.err_str = "Unsupported section found",
+},
+
+{
+	.descr = "btf_header test. Overlap between type and str",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.str_off_delta = -4,
+	.err_str = "Section overlap found",
+},
+
+{
+	.descr = "btf_header test. Larger BTF size",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.str_len_delta = -4,
+	.err_str = "Unsupported section found",
+},
+
+{
+	.descr = "btf_header test. Smaller BTF size",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int",
+	.str_sec_size = sizeof("\0int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "hdr_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.str_len_delta = 4,
+	.err_str = "Total section length too long",
+},
+
+{
+	.descr = "array test. index_type/elem_type \"int\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 16),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "array test. index_type/elem_type \"const int\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 3, 16),
+		/* CONST type_id=1 */			/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "array test. index_type \"const int:31\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int:31 */				/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4),
+		/* int[16] */				/* [3] */
+		BTF_TYPE_ARRAY_ENC(1, 4, 16),
+		/* CONST type_id=2 */			/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid index",
+},
+
+{
+	.descr = "array test. elem_type \"const int:31\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int:31 */				/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 31, 4),
+		/* int[16] */				/* [3] */
+		BTF_TYPE_ARRAY_ENC(4, 1, 16),
+		/* CONST type_id=2 */			/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid array of int",
+},
+
+{
+	.descr = "array test. index_type \"void\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(1, 0, 16),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid index",
+},
+
+{
+	.descr = "array test. index_type \"const void\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(1, 3, 16),
+		/* CONST type_id=0 (void) */		/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid index",
+},
+
+{
+	.descr = "array test. elem_type \"const void\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 16),
+		/* CONST type_id=0 (void) */		/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid elem",
+},
+
+{
+	.descr = "array test. elem_type \"const void *\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void *[16] */			/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 1, 16),
+		/* CONST type_id=4 */			/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
+		/* void* */				/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "array test. index_type \"const void *\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* const void *[16] */			/* [2] */
+		BTF_TYPE_ARRAY_ENC(3, 3, 16),
+		/* CONST type_id=4 */			/* [3] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 4),
+		/* void* */				/* [4] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid index",
+},
+
+{
+	.descr = "array test. t->size != 0\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* int[16] */				/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 1),
+		BTF_ARRAY_ENC(1, 1, 16),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "size != 0",
+},
+
+{
+	.descr = "int test. invalid int_data",
+	.raw_types = {
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), 4),
+		0x10000000,
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid int_data",
+},
+
+{
+	.descr = "invalid BTF_INFO",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_TYPE_ENC(0, 0x20000000, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info",
+},
+
+{
+	.descr = "fwd test. t->type != 0\"",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* fwd type */				/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 1),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "fwd_test_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "type != 0",
+},
+
+{
+	.descr = "typedef (invalid name, name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPEDEF_ENC(0, 1),				/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__int",
+	.str_sec_size = sizeof("\0__int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "typedef_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "typedef (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__!int",
+	.str_sec_size = sizeof("\0__!int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "typedef_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "ptr type (invalid name, name_off <> 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__int",
+	.str_sec_size = sizeof("\0__int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "ptr_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "volatile type (invalid name, name_off <> 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__int",
+	.str_sec_size = sizeof("\0__int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "volatile_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "const type (invalid name, name_off <> 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__int",
+	.str_sec_size = sizeof("\0__int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "const_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "restrict type (invalid name, name_off <> 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 1),	/* [2] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), 2),	/* [3] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__int",
+	.str_sec_size = sizeof("\0__int"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "restrict_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "fwd type (invalid name, name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0),	/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__skb",
+	.str_sec_size = sizeof("\0__skb"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "fwd_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "fwd type (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_FWD, 0, 0), 0),	/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__!skb",
+	.str_sec_size = sizeof("\0__!skb"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "fwd_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "array type (invalid name, name_off <> 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0),	/* [2] */
+		BTF_ARRAY_ENC(1, 1, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0__skb",
+	.str_sec_size = sizeof("\0__skb"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "struct type (name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0,
+			     BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A",
+	.str_sec_size = sizeof("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct type (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A!\0B",
+	.str_sec_size = sizeof("\0A!\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "struct member (name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0,
+			     BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A",
+	.str_sec_size = sizeof("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct member (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0B*",
+	.str_sec_size = sizeof("\0A\0B*"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "enum type (name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0,
+			     BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
+			     sizeof(int)),				/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A\0B",
+	.str_sec_size = sizeof("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "enum_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "enum type (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
+			     sizeof(int)),				/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A!\0B",
+	.str_sec_size = sizeof("\0A!\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "enum_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "enum member (invalid name, name_off = 0)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0,
+			     BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
+			     sizeof(int)),				/* [2] */
+		BTF_ENUM_ENC(0, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "enum_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "enum member (invalid name, invalid identifier)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0,
+			     BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1),
+			     sizeof(int)),				/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0A!",
+	.str_sec_size = sizeof("\0A!"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "enum_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+{
+	.descr = "arraymap invalid btf key (a bit field)",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* 32 bit int with 32 bit offset */	/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 32, 32, 8),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_map_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 2,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.map_create_err = true,
+},
+
+{
+	.descr = "arraymap invalid btf key (!= 32 bits)",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* 16 bit int with 0 bit offset */	/* [2] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 16, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_map_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 2,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.map_create_err = true,
+},
+
+{
+	.descr = "arraymap invalid btf value (too small)",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_map_check_btf",
+	.key_size = sizeof(int),
+	/* btf_value_size < map->value_size */
+	.value_size = sizeof(__u64),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.map_create_err = true,
+},
+
+{
+	.descr = "arraymap invalid btf value (too big)",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_map_check_btf",
+	.key_size = sizeof(int),
+	/* btf_value_size > map->value_size */
+	.value_size = sizeof(__u16),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.map_create_err = true,
+},
+
+{
+	.descr = "func proto (int (*)(int, unsigned int))",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* int (*)(int, unsigned int) */
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (vararg)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int, unsigned int, ...) */
+		BTF_FUNC_PROTO_ENC(0, 3),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+			BTF_FUNC_PROTO_ARG_ENC(0, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (vararg with name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int b, ... c) */
+		BTF_FUNC_PROTO_ENC(0, 3),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 0),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b\0c",
+	.str_sec_size = sizeof("\0a\0b\0c"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#3",
+},
+
+{
+	.descr = "func proto (arg after vararg)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, ..., unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 3),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 0),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b",
+	.str_sec_size = sizeof("\0a\0b"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#2",
+},
+
+{
+	.descr = "func proto (CONST=>TYPEDEF=>PTR=>FUNC_PROTO)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* typedef void (*func_ptr)(int, unsigned int) */
+		BTF_TYPEDEF_ENC(NAME_TBD, 5),			/* [3] */
+		/* const func_ptr */
+		BTF_CONST_ENC(3),				/* [4] */
+		BTF_PTR_ENC(6),					/* [5] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [6] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0func_ptr",
+	.str_sec_size = sizeof("\0func_ptr"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (TYPEDEF=>FUNC_PROTO)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [4] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0func_typedef",
+	.str_sec_size = sizeof("\0func_typedef"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (btf_resolve(arg))",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* void (*)(const void *) */
+		BTF_FUNC_PROTO_ENC(0, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 3),
+		BTF_CONST_ENC(4),				/* [3] */
+		BTF_PTR_ENC(0),					/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (Not all arg has name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int, unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0b",
+	.str_sec_size = sizeof("\0b"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func proto (Bad arg name_off)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int <bad_name_off>) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0x0fffffff, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a",
+	.str_sec_size = sizeof("\0a"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#2",
+},
+
+{
+	.descr = "func proto (Bad arg name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int !!!) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0!!!",
+	.str_sec_size = sizeof("\0a\0!!!"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#2",
+},
+
+{
+	.descr = "func proto (Invalid return type)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* <bad_ret_type> (*)(int, unsigned int) */
+		BTF_FUNC_PROTO_ENC(100, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid return type",
+},
+
+{
+	.descr = "func proto (with func name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void func_proto(int, unsigned int) */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 2), 0),	/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		BTF_END_RAW,
+	},
+	.str_sec = "\0func_proto",
+	.str_sec_size = sizeof("\0func_proto"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "func proto (const void arg)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(const void) */
+		BTF_FUNC_PROTO_ENC(0, 1),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(0, 4),
+		BTF_CONST_ENC(0),				/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#1",
+},
+
+{
+	.descr = "func (void func(int a, unsigned int b))",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		/* void func(int a, unsigned int b) */
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b\0func",
+	.str_sec_size = sizeof("\0a\0b\0func"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "func (No func name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		/* void <no_name>(int a, unsigned int b) */
+		BTF_FUNC_ENC(0, 3),				/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b",
+	.str_sec_size = sizeof("\0a\0b"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "func (Invalid func name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		/* void !!!(int a, unsigned int b) */
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b\0!!!",
+	.str_sec_size = sizeof("\0a\0b\0!!!"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid name",
+},
+
+{
+	.descr = "func (Some arg has no name)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(0, 2),
+		/* void func(int a, unsigned int) */
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0func",
+	.str_sec_size = sizeof("\0a\0func"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid arg#2",
+},
+
+{
+	.descr = "func (Non zero vlen)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),		/* [2] */
+		/* void (*)(int a, unsigned int b) */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		/* void func(int a, unsigned int b) */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 2), 3), 	/* [4] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0a\0b\0func",
+	.str_sec_size = sizeof("\0a\0b\0func"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid func linkage",
+},
+
+{
+	.descr = "func (Not referring to FUNC_PROTO)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0func",
+	.str_sec_size = sizeof("\0func"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+
+{
+	.descr = "invalid int kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_INT, 1, 0), 4),	/* [2] */
+		BTF_INT_ENC(0, 0, 32),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "int_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid ptr kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 1, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "ptr_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid array kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 1, 0), 0),	/* [2] */
+		BTF_ARRAY_ENC(1, 1, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "array_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "valid fwd kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "fwd_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "invalid typedef kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(NAME_TBD,
+			     BTF_INFO_ENC(BTF_KIND_TYPEDEF, 1, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "typedef_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid volatile kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 1, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "volatile_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid const kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 1, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "const_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid restrict kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 1, 0), 1),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "restrict_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid func kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, 0), 0),	/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FUNC, 1, 0), 2),	/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "invalid func_proto kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 1, 0), 0),	/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC(""),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "func_proto_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+
+{
+	.descr = "valid struct, kind_flag, bitfield_size = 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 8),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(0, 32)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid struct, kind_flag, int member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 4)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid union, kind_flag, int member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "union_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid struct, kind_flag, enum member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),	/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 4)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B\0C"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid union, kind_flag, enum member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),	/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B\0C"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "union_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid struct, kind_flag, typedef member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),	/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 4)),
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),				/* [4] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),				/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B\0C\0D\0E"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "valid union, kind_flag, typedef member, bitfield_size != 0",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),	/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 4),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 4, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 5, BTF_MEMBER_OFFSET(4, 0)),
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),				/* [4] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),				/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B\0C\0D\0E"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "union_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "invalid struct, kind_flag, bitfield_size greater than struct size",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 20)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+{
+	.descr = "invalid struct, kind_flag, bitfield base_type int not regular",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 20, 4),			/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(20, 20)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member base type",
+},
+
+{
+	.descr = "invalid struct, kind_flag, base_type int not regular",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 12, 4),			/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 4),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(8, 8)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member base type",
+},
+
+{
+	.descr = "invalid union, kind_flag, bitfield_size greater than struct size",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 1, 2), 2),	/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(8, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 1, BTF_MEMBER_OFFSET(20, 0)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "union_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+
+{
+	.descr = "invalid struct, kind_flag, int member, bitfield_size = 0, wrong byte alignment",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member offset",
+},
+
+{
+	.descr = "invalid struct, kind_flag, enum member, bitfield_size = 0, wrong byte alignment",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),	/* [2] */
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 2), 12),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 36)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A\0B\0C"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+	.btf_load_err = true,
+	.err_str = "Invalid member offset",
+},
+
+{
+	.descr = "128-bit int",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16),		/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "int_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct, 128-bit int member",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16),		/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct, 120-bit int member bitfield",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 120, 16),		/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct, kind_flag, 128-bit int member",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16),		/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+
+{
+	.descr = "struct, kind_flag, 120-bit int member bitfield",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 128, 16),		/* [2] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 16),	/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(120, 0)),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0A"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "struct_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 4,
+},
+/*
+ * typedef int arr_t[16];
+ * struct s {
+ *	arr_t *a;
+ * };
+ */
+{
+	.descr = "struct->ptr->typedef->array->int size resolution",
+	.raw_types = {
+		BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [1] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_PTR_ENC(3),					/* [2] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		BTF_TYPE_ARRAY_ENC(5, 5, 16),			/* [4] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0s\0a\0arr_t"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "ptr_mod_chain_size_resolve_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int) * 16,
+	.key_type_id = 5 /* int */,
+	.value_type_id = 3 /* arr_t */,
+	.max_entries = 4,
+},
+/*
+ * typedef int arr_t[16][8][4];
+ * struct s {
+ *	arr_t *a;
+ * };
+ */
+{
+	.descr = "struct->ptr->typedef->multi-array->int size resolution",
+	.raw_types = {
+		BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [1] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_PTR_ENC(3),					/* [2] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		BTF_TYPE_ARRAY_ENC(5, 7, 16),			/* [4] */
+		BTF_TYPE_ARRAY_ENC(6, 7, 8),			/* [5] */
+		BTF_TYPE_ARRAY_ENC(7, 7, 4),			/* [6] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [7] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0s\0a\0arr_t"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "multi_arr_size_resolve_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int) * 16 * 8 * 4,
+	.key_type_id = 7 /* int */,
+	.value_type_id = 3 /* arr_t */,
+	.max_entries = 4,
+},
+/*
+ * typedef int int_t;
+ * typedef int_t arr3_t[4];
+ * typedef arr3_t arr2_t[8];
+ * typedef arr2_t arr1_t[16];
+ * struct s {
+ *	arr1_t *a;
+ * };
+ */
+{
+	.descr = "typedef/multi-arr mix size resolution",
+	.raw_types = {
+		BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [1] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_PTR_ENC(3),					/* [2] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),			/* [3] */
+		BTF_TYPE_ARRAY_ENC(5, 10, 16),			/* [4] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 6),			/* [5] */
+		BTF_TYPE_ARRAY_ENC(7, 10, 8),			/* [6] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 8),			/* [7] */
+		BTF_TYPE_ARRAY_ENC(9, 10, 4),			/* [8] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 10),			/* [9] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [10] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0s\0a\0arr1_t\0arr2_t\0arr3_t\0int_t"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "typedef_arra_mix_size_resolve_map",
+	.key_size = sizeof(int),
+	.value_size = sizeof(int) * 16 * 8 * 4,
+	.key_type_id = 10 /* int */,
+	.value_type_id = 3 /* arr_t */,
+	.max_entries = 4,
+},
+/*
+ * elf .rodata section size 4 and btf .rodata section vlen 0.
+ */
+{
+	.descr = "datasec: vlen == 0",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		/* .rodata section */
+		BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 0), 4),
+								 /* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0.rodata"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.key_size = sizeof(int),
+	.value_size = sizeof(int),
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "datasec: name '?.foo bar:buz' is ok",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
+		/* VAR x */                                     /* [2] */
+		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1),
+		BTF_VAR_STATIC,
+		/* DATASEC ?.data */                            /* [3] */
+		BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0x\0?.foo bar:buz"),
+},
+{
+	.descr = "datasec: name with non-printable first char not is ok",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
+		/* VAR x */                                     /* [2] */
+		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1),
+		BTF_VAR_STATIC,
+		/* DATASEC ?.data */                            /* [3] */
+		BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0x\0\7foo"),
+	.err_str = "Invalid name",
+	.btf_load_err = true,
+},
+{
+	.descr = "datasec: name '\\0' is not ok",
+	.raw_types = {
+		/* int */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
+		/* VAR x */                                     /* [2] */
+		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), 1),
+		BTF_VAR_STATIC,
+		/* DATASEC \0 */                                /* [3] */
+		BTF_TYPE_ENC(3, BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+		BTF_VAR_SECINFO_ENC(2, 0, 4),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0x\0"),
+	.err_str = "Invalid name",
+	.btf_load_err = true,
+},
+{
+	.descr = "type name '?foo' is not ok",
+	.raw_types = {
+		/* union ?foo; */
+		BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_FWD, 1, 0), 0), /* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0?foo"),
+	.err_str = "Invalid name",
+	.btf_load_err = true,
+},
+
+{
+	.descr = "float test #1, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 2),		/* [2] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 4),		/* [3] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 8),		/* [4] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 12),		/* [5] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 16),		/* [6] */
+		BTF_STRUCT_ENC(NAME_TBD, 5, 48),		/* [7] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 3, 32),
+		BTF_MEMBER_ENC(NAME_TBD, 4, 64),
+		BTF_MEMBER_ENC(NAME_TBD, 5, 128),
+		BTF_MEMBER_ENC(NAME_TBD, 6, 256),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0_Float16\0float\0double\0_Float80\0long_double"
+		    "\0floats\0a\0b\0c\0d\0e"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 48,
+	.key_type_id = 1,
+	.value_type_id = 7,
+	.max_entries = 1,
+},
+{
+	.descr = "float test #2, invalid vlen",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 1), 4),
+								/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0float"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "vlen != 0",
+},
+{
+	.descr = "float test #3, invalid kind_flag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_FLOAT, 1, 0), 4),
+								/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0float"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid btf_info kind_flag",
+},
+{
+	.descr = "float test #4, member does not fit",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 4),		/* [2] */
+		BTF_STRUCT_ENC(NAME_TBD, 1, 2),			/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0float\0floats\0x"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Member exceeds struct_size",
+},
+{
+	.descr = "float test #5, member is not properly aligned",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 4),		/* [2] */
+		BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [3] */
+		BTF_MEMBER_ENC(NAME_TBD, 2, 8),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0float\0floats\0x"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Member is not properly aligned",
+},
+{
+	.descr = "float test #6, invalid size",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+								/* [1] */
+		BTF_TYPE_FLOAT_ENC(NAME_TBD, 6),		/* [2] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0float"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "float_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 6,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_size",
+},
+
+{
+	.descr = "decl_tag test #1, struct/member, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_STRUCT_ENC(0, 2, 8),			/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0m1\0m2\0tag1\0tag2\0tag3"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #2, union/member, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_UNION_ENC(NAME_TBD, 2, 4),			/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #3, variable, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_VAR_ENC(NAME_TBD, 1, 1),			/* [3] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0global\0tag1\0tag2"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #4, func/parameter, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, -1),
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, 0),
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0arg1\0arg2\0f\0tag1\0tag2\0tag3"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #5, invalid value",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_DECL_TAG_ENC(0, 2, -1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid value",
+},
+{
+	.descr = "decl_tag test #6, invalid target type",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 1, -1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag1"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type",
+},
+{
+	.descr = "decl_tag test #7, invalid vlen",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 1), 2), (0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag1"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "vlen != 0",
+},
+{
+	.descr = "decl_tag test #8, tag with kflag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_DECL_ATTR_ENC(NAME_TBD, 2, -1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag1"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #9, var, invalid component_idx",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),			/* [2] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid component_idx",
+},
+{
+	.descr = "decl_tag test #10, struct member, invalid component_idx",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_STRUCT_ENC(0, 2, 8),			/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 2),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0m1\0m2\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid component_idx",
+},
+{
+	.descr = "decl_tag test #11, func parameter, invalid component_idx",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, 2),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid component_idx",
+},
+{
+	.descr = "decl_tag test #12, < -1 component_idx",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(0, 2),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, -2),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0arg1\0arg2\0f\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid component_idx",
+},
+{
+	.descr = "decl_tag test #13, typedef, well-formed",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0t\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "decl_tag test #14, typedef, invalid component_idx",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid component_idx",
+},
+{
+	.descr = "decl_tag test #15, func, invalid func proto",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_DECL_TAG_ENC(NAME_TBD, 3, 0),		/* [2] */
+		BTF_FUNC_ENC(NAME_TBD, 8),			/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag\0func"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Invalid type_id",
+},
+{
+	.descr = "decl_tag test #16, func proto, return type",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),				/* [1] */
+		BTF_VAR_ENC(NAME_TBD, 1, 0),						/* [2] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 2), (-1),	/* [3] */
+		BTF_FUNC_PROTO_ENC(3, 0),						/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag1"),
+	.btf_load_err = true,
+	.err_str = "Invalid return type",
+},
+{
+	.descr = "decl_tag test #17, func proto, argument",
+	.raw_types = {
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), 4), (-1),	/* [1] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), 0), /* [2] */
+		BTF_FUNC_PROTO_ENC(0, 1),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_VAR_ENC(NAME_TBD, 2, 0),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0local\0tag1\0var"),
+	.btf_load_err = true,
+	.err_str = "Invalid arg#1",
+},
+{
+	.descr = "decl_tag test #18, decl_tag as the map key type",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_STRUCT_ENC(0, 2, 8),			/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),		/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0m1\0m2\0tag"),
+	.map_type = BPF_MAP_TYPE_HASH,
+	.map_name = "tag_type_check_btf",
+	.key_size = 8,
+	.value_size = 4,
+	.key_type_id = 3,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.map_create_err = true,
+},
+{
+	.descr = "decl_tag test #19, decl_tag as the map value type",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_STRUCT_ENC(0, 2, 8),			/* [2] */
+		BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+		BTF_MEMBER_ENC(NAME_TBD, 1, 32),
+		BTF_DECL_TAG_ENC(NAME_TBD, 2, -1),		/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0m1\0m2\0tag"),
+	.map_type = BPF_MAP_TYPE_HASH,
+	.map_name = "tag_type_check_btf",
+	.key_size = 4,
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 3,
+	.max_entries = 1,
+	.map_create_err = true,
+},
+{
+	.descr = "type_tag test #1",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_PTR_ENC(2),					/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "type_tag test #2, type tag order",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_CONST_ENC(3),				/* [2] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 1),			/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Type tags don't precede modifiers",
+},
+{
+	.descr = "type_tag test #3, type tag order",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 3),			/* [2] */
+		BTF_CONST_ENC(4),				/* [3] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 1),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Type tags don't precede modifiers",
+},
+{
+	.descr = "type_tag test #4, type tag order",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),			/* [2] */
+		BTF_CONST_ENC(4),				/* [3] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 1),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Type tags don't precede modifiers",
+},
+{
+	.descr = "type_tag test #5, type tag order",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 3),			/* [2] */
+		BTF_CONST_ENC(1),				/* [3] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "type_tag test #6, type tag order",
+	.raw_types = {
+		BTF_PTR_ENC(2),					/* [1] */
+		BTF_TYPE_TAG_ENC(NAME_TBD, 3),			/* [2] */
+		BTF_CONST_ENC(4),				/* [3] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [4] */
+		BTF_PTR_ENC(6),					/* [5] */
+		BTF_CONST_ENC(2),				/* [6] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+	.btf_load_err = true,
+	.err_str = "Type tags don't precede modifiers",
+},
+{
+	.descr = "type_tag test #7, tag with kflag",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_ATTR_ENC(NAME_TBD, 1),			/* [2] */
+		BTF_PTR_ENC(2),					/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0tag"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 1,
+	.max_entries = 1,
+},
+{
+	.descr = "enum64 test #1, unsigned, size 8",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [2] */
+		BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+		BTF_ENUM64_ENC(NAME_TBD, 1, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0a\0b\0c"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
+{
+	.descr = "enum64 test #2, signed, size 4",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4),	/* [2] */
+		BTF_ENUM64_ENC(NAME_TBD, -1, 0),
+		BTF_ENUM64_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0a\0b\0c"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
+
+}; /* struct btf_raw_test raw_tests[] */
+
+static const char *get_next_str(const char *start, const char *end)
+{
+	return start < end - 1 ? start + 1 : NULL;
+}
+
+static int get_raw_sec_size(const __u32 *raw_types)
+{
+	int i;
+
+	for (i = MAX_NR_RAW_U32 - 1;
+	     i >= 0 && raw_types[i] != BTF_END_RAW;
+	     i--)
+		;
+
+	return i < 0 ? i : i * sizeof(raw_types[0]);
+}
+
+static void *btf_raw_create(const struct btf_header *hdr,
+			    const __u32 *raw_types,
+			    const char *str,
+			    unsigned int str_sec_size,
+			    unsigned int *btf_size,
+			    const char **ret_next_str)
+{
+	const char *next_str = str, *end_str = str + str_sec_size;
+	const char **strs_idx = NULL, **tmp_strs_idx;
+	int strs_cap = 0, strs_cnt = 0, next_str_idx = 0;
+	unsigned int size_needed, offset;
+	struct btf_header *ret_hdr;
+	int i, type_sec_size, err = 0;
+	uint32_t *ret_types;
+	void *raw_btf = NULL;
+
+	type_sec_size = get_raw_sec_size(raw_types);
+	if (CHECK(type_sec_size < 0, "Cannot get nr_raw_types"))
+		return NULL;
+
+	size_needed = sizeof(*hdr) + type_sec_size + str_sec_size;
+	raw_btf = malloc(size_needed);
+	if (CHECK(!raw_btf, "Cannot allocate memory for raw_btf"))
+		return NULL;
+
+	/* Copy header */
+	memcpy(raw_btf, hdr, sizeof(*hdr));
+	offset = sizeof(*hdr);
+
+	/* Index strings */
+	while ((next_str = get_next_str(next_str, end_str))) {
+		if (strs_cnt == strs_cap) {
+			strs_cap += max(16, strs_cap / 2);
+			tmp_strs_idx = realloc(strs_idx,
+					       sizeof(*strs_idx) * strs_cap);
+			if (CHECK(!tmp_strs_idx,
+				  "Cannot allocate memory for strs_idx")) {
+				err = -1;
+				goto done;
+			}
+			strs_idx = tmp_strs_idx;
+		}
+		strs_idx[strs_cnt++] = next_str;
+		next_str += strlen(next_str);
+	}
+
+	/* Copy type section */
+	ret_types = raw_btf + offset;
+	for (i = 0; i < type_sec_size / sizeof(raw_types[0]); i++) {
+		if (raw_types[i] == NAME_TBD) {
+			if (CHECK(next_str_idx == strs_cnt,
+				  "Error in getting next_str #%d",
+				  next_str_idx)) {
+				err = -1;
+				goto done;
+			}
+			ret_types[i] = strs_idx[next_str_idx++] - str;
+		} else if (IS_NAME_NTH(raw_types[i])) {
+			int idx = GET_NAME_NTH_IDX(raw_types[i]);
+
+			if (CHECK(idx <= 0 || idx > strs_cnt,
+				  "Error getting string #%d, strs_cnt:%d",
+				  idx, strs_cnt)) {
+				err = -1;
+				goto done;
+			}
+			ret_types[i] = strs_idx[idx-1] - str;
+		} else {
+			ret_types[i] = raw_types[i];
+		}
+	}
+	offset += type_sec_size;
+
+	/* Copy string section */
+	memcpy(raw_btf + offset, str, str_sec_size);
+
+	ret_hdr = (struct btf_header *)raw_btf;
+	ret_hdr->type_len = type_sec_size;
+	ret_hdr->str_off = type_sec_size;
+	ret_hdr->str_len = str_sec_size;
+
+	*btf_size = size_needed;
+	if (ret_next_str)
+		*ret_next_str =
+			next_str_idx < strs_cnt ? strs_idx[next_str_idx] : NULL;
+
+done:
+	free(strs_idx);
+	if (err) {
+		free(raw_btf);
+		return NULL;
+	}
+	return raw_btf;
+}
+
+static int load_raw_btf(const void *raw_data, size_t raw_size)
+{
+	LIBBPF_OPTS(bpf_btf_load_opts, opts);
+	int btf_fd;
+
+	if (always_log) {
+		opts.log_buf = btf_log_buf,
+		opts.log_size = BTF_LOG_BUF_SIZE,
+		opts.log_level = 1;
+	}
+
+	btf_fd = bpf_btf_load(raw_data, raw_size, &opts);
+	if (btf_fd < 0 && !always_log) {
+		opts.log_buf = btf_log_buf,
+		opts.log_size = BTF_LOG_BUF_SIZE,
+		opts.log_level = 1;
+		btf_fd = bpf_btf_load(raw_data, raw_size, &opts);
+	}
+
+	return btf_fd;
+}
+
+static void do_test_raw(unsigned int test_num)
+{
+	struct btf_raw_test *test = &raw_tests[test_num - 1];
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	int map_fd = -1, btf_fd = -1;
+	unsigned int raw_btf_size;
+	struct btf_header *hdr;
+	void *raw_btf;
+	int err;
+
+	if (!test__start_subtest(test->descr))
+		return;
+
+	raw_btf = btf_raw_create(&hdr_tmpl,
+				 test->raw_types,
+				 test->str_sec,
+				 test->str_sec_size,
+				 &raw_btf_size, NULL);
+	if (!raw_btf)
+		return;
+
+	hdr = raw_btf;
+
+	hdr->hdr_len = (int)hdr->hdr_len + test->hdr_len_delta;
+	hdr->type_off = (int)hdr->type_off + test->type_off_delta;
+	hdr->str_off = (int)hdr->str_off + test->str_off_delta;
+	hdr->str_len = (int)hdr->str_len + test->str_len_delta;
+
+	*btf_log_buf = '\0';
+	btf_fd = load_raw_btf(raw_btf, raw_btf_size);
+	free(raw_btf);
+
+	err = ((btf_fd < 0) != test->btf_load_err);
+	if (CHECK(err, "btf_fd:%d test->btf_load_err:%u",
+		  btf_fd, test->btf_load_err) ||
+	    CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
+		  "expected err_str:%s\n", test->err_str)) {
+		err = -1;
+		goto done;
+	}
+
+	if (err || btf_fd < 0)
+		goto done;
+
+	if (!test->map_type)
+		goto done;
+
+	opts.btf_fd = btf_fd;
+	opts.btf_key_type_id = test->key_type_id;
+	opts.btf_value_type_id = test->value_type_id;
+	map_fd = bpf_map_create(test->map_type, test->map_name,
+				test->key_size, test->value_size, test->max_entries, &opts);
+
+	err = ((map_fd < 0) != test->map_create_err);
+	CHECK(err, "map_fd:%d test->map_create_err:%u",
+	      map_fd, test->map_create_err);
+
+done:
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+	if (btf_fd >= 0)
+		close(btf_fd);
+	if (map_fd >= 0)
+		close(map_fd);
+}
+
+struct btf_get_info_test {
+	const char *descr;
+	const char *str_sec;
+	__u32 raw_types[MAX_NR_RAW_U32];
+	__u32 str_sec_size;
+	int btf_size_delta;
+	int (*special_test)(unsigned int test_num);
+};
+
+static int test_big_btf_info(unsigned int test_num);
+static int test_btf_id(unsigned int test_num);
+
+const struct btf_get_info_test get_info_tests[] = {
+{
+	.descr = "== raw_btf_size+1",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.btf_size_delta = 1,
+},
+{
+	.descr = "== raw_btf_size-3",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.btf_size_delta = -3,
+},
+{
+	.descr = "Large bpf_btf_info",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.special_test = test_big_btf_info,
+},
+{
+	.descr = "BTF ID",
+	.raw_types = {
+		/* int */				/* [1] */
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),
+		/* unsigned int */			/* [2] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),
+		BTF_END_RAW,
+	},
+	.str_sec = "",
+	.str_sec_size = sizeof(""),
+	.special_test = test_btf_id,
+},
+};
+
+static int test_big_btf_info(unsigned int test_num)
+{
+	const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
+	uint8_t *raw_btf = NULL, *user_btf = NULL;
+	unsigned int raw_btf_size;
+	struct {
+		struct bpf_btf_info info;
+		uint64_t garbage;
+	} info_garbage;
+	struct bpf_btf_info *info;
+	int btf_fd = -1, err;
+	uint32_t info_len;
+
+	raw_btf = btf_raw_create(&hdr_tmpl,
+				 test->raw_types,
+				 test->str_sec,
+				 test->str_sec_size,
+				 &raw_btf_size, NULL);
+
+	if (!raw_btf)
+		return -1;
+
+	*btf_log_buf = '\0';
+
+	user_btf = malloc(raw_btf_size);
+	if (CHECK(!user_btf, "!user_btf")) {
+		err = -1;
+		goto done;
+	}
+
+	btf_fd = load_raw_btf(raw_btf, raw_btf_size);
+	if (CHECK(btf_fd < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	/*
+	 * GET_INFO should error out if the userspace info
+	 * has non zero tailing bytes.
+	 */
+	info = &info_garbage.info;
+	memset(info, 0, sizeof(*info));
+	info_garbage.garbage = 0xdeadbeef;
+	info_len = sizeof(info_garbage);
+	info->btf = ptr_to_u64(user_btf);
+	info->btf_size = raw_btf_size;
+
+	err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len);
+	if (CHECK(!err, "!err")) {
+		err = -1;
+		goto done;
+	}
+
+	/*
+	 * GET_INFO should succeed even info_len is larger than
+	 * the kernel supported as long as tailing bytes are zero.
+	 * The kernel supported info len should also be returned
+	 * to userspace.
+	 */
+	info_garbage.garbage = 0;
+	err = bpf_btf_get_info_by_fd(btf_fd, info, &info_len);
+	if (CHECK(err || info_len != sizeof(*info),
+		  "err:%d errno:%d info_len:%u sizeof(*info):%zu",
+		  err, errno, info_len, sizeof(*info))) {
+		err = -1;
+		goto done;
+	}
+
+	fprintf(stderr, "OK");
+
+done:
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+
+	free(raw_btf);
+	free(user_btf);
+
+	if (btf_fd >= 0)
+		close(btf_fd);
+
+	return err;
+}
+
+static int test_btf_id(unsigned int test_num)
+{
+	const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	uint8_t *raw_btf = NULL, *user_btf[2] = {};
+	int btf_fd[2] = {-1, -1}, map_fd = -1;
+	struct bpf_map_info map_info = {};
+	struct bpf_btf_info info[2] = {};
+	unsigned int raw_btf_size;
+	uint32_t info_len;
+	int err, i, ret;
+
+	raw_btf = btf_raw_create(&hdr_tmpl,
+				 test->raw_types,
+				 test->str_sec,
+				 test->str_sec_size,
+				 &raw_btf_size, NULL);
+
+	if (!raw_btf)
+		return -1;
+
+	*btf_log_buf = '\0';
+
+	for (i = 0; i < 2; i++) {
+		user_btf[i] = malloc(raw_btf_size);
+		if (CHECK(!user_btf[i], "!user_btf[%d]", i)) {
+			err = -1;
+			goto done;
+		}
+		info[i].btf = ptr_to_u64(user_btf[i]);
+		info[i].btf_size = raw_btf_size;
+	}
+
+	btf_fd[0] = load_raw_btf(raw_btf, raw_btf_size);
+	if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	/* Test BPF_OBJ_GET_INFO_BY_ID on btf_id */
+	info_len = sizeof(info[0]);
+	err = bpf_btf_get_info_by_fd(btf_fd[0], &info[0], &info_len);
+	if (CHECK(err, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	btf_fd[1] = bpf_btf_get_fd_by_id(info[0].id);
+	if (CHECK(btf_fd[1] < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	ret = 0;
+	err = bpf_btf_get_info_by_fd(btf_fd[1], &info[1], &info_len);
+	if (CHECK(err || info[0].id != info[1].id ||
+		  info[0].btf_size != info[1].btf_size ||
+		  (ret = memcmp(user_btf[0], user_btf[1], info[0].btf_size)),
+		  "err:%d errno:%d id0:%u id1:%u btf_size0:%u btf_size1:%u memcmp:%d",
+		  err, errno, info[0].id, info[1].id,
+		  info[0].btf_size, info[1].btf_size, ret)) {
+		err = -1;
+		goto done;
+	}
+
+	/* Test btf members in struct bpf_map_info */
+	opts.btf_fd = btf_fd[0];
+	opts.btf_key_type_id = 1;
+	opts.btf_value_type_id = 2;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_btf_id",
+				sizeof(int), sizeof(int), 4, &opts);
+	if (CHECK(map_fd < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	info_len = sizeof(map_info);
+	err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len);
+	if (CHECK(err || map_info.btf_id != info[0].id ||
+		  map_info.btf_key_type_id != 1 || map_info.btf_value_type_id != 2,
+		  "err:%d errno:%d info.id:%u btf_id:%u btf_key_type_id:%u btf_value_type_id:%u",
+		  err, errno, info[0].id, map_info.btf_id, map_info.btf_key_type_id,
+		  map_info.btf_value_type_id)) {
+		err = -1;
+		goto done;
+	}
+
+	for (i = 0; i < 2; i++) {
+		close(btf_fd[i]);
+		btf_fd[i] = -1;
+	}
+
+	/* Test BTF ID is removed from the kernel */
+	btf_fd[0] = bpf_btf_get_fd_by_id(map_info.btf_id);
+	if (CHECK(btf_fd[0] < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+	close(btf_fd[0]);
+	btf_fd[0] = -1;
+
+	/* The map holds the last ref to BTF and its btf_id */
+	close(map_fd);
+	map_fd = -1;
+
+	fprintf(stderr, "OK");
+
+done:
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+
+	free(raw_btf);
+	if (map_fd >= 0)
+		close(map_fd);
+	for (i = 0; i < 2; i++) {
+		free(user_btf[i]);
+		if (btf_fd[i] >= 0)
+			close(btf_fd[i]);
+	}
+
+	return err;
+}
+
+static void do_test_get_info(unsigned int test_num)
+{
+	const struct btf_get_info_test *test = &get_info_tests[test_num - 1];
+	unsigned int raw_btf_size, user_btf_size, expected_nbytes;
+	uint8_t *raw_btf = NULL, *user_btf = NULL;
+	struct bpf_btf_info info = {};
+	int btf_fd = -1, err, ret;
+	uint32_t info_len;
+
+	if (!test__start_subtest(test->descr))
+		return;
+
+	if (test->special_test) {
+		err = test->special_test(test_num);
+		if (CHECK(err, "failed: %d\n", err))
+			return;
+	}
+
+	raw_btf = btf_raw_create(&hdr_tmpl,
+				 test->raw_types,
+				 test->str_sec,
+				 test->str_sec_size,
+				 &raw_btf_size, NULL);
+
+	if (!raw_btf)
+		return;
+
+	*btf_log_buf = '\0';
+
+	user_btf = malloc(raw_btf_size);
+	if (CHECK(!user_btf, "!user_btf")) {
+		err = -1;
+		goto done;
+	}
+
+	btf_fd = load_raw_btf(raw_btf, raw_btf_size);
+	if (CHECK(btf_fd <= 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	user_btf_size = (int)raw_btf_size + test->btf_size_delta;
+	expected_nbytes = min(raw_btf_size, user_btf_size);
+	if (raw_btf_size > expected_nbytes)
+		memset(user_btf + expected_nbytes, 0xff,
+		       raw_btf_size - expected_nbytes);
+
+	info_len = sizeof(info);
+	info.btf = ptr_to_u64(user_btf);
+	info.btf_size = user_btf_size;
+
+	ret = 0;
+	err = bpf_btf_get_info_by_fd(btf_fd, &info, &info_len);
+	if (CHECK(err || !info.id || info_len != sizeof(info) ||
+		  info.btf_size != raw_btf_size ||
+		  (ret = memcmp(raw_btf, user_btf, expected_nbytes)),
+		  "err:%d errno:%d info.id:%u info_len:%u sizeof(info):%zu raw_btf_size:%u info.btf_size:%u expected_nbytes:%u memcmp:%d",
+		  err, errno, info.id, info_len, sizeof(info),
+		  raw_btf_size, info.btf_size, expected_nbytes, ret)) {
+		err = -1;
+		goto done;
+	}
+
+	while (expected_nbytes < raw_btf_size) {
+		fprintf(stderr, "%u...", expected_nbytes);
+		if (CHECK(user_btf[expected_nbytes++] != 0xff,
+			  "user_btf[%u]:%x != 0xff", expected_nbytes - 1,
+			  user_btf[expected_nbytes - 1])) {
+			err = -1;
+			goto done;
+		}
+	}
+
+	fprintf(stderr, "OK");
+
+done:
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+
+	free(raw_btf);
+	free(user_btf);
+
+	if (btf_fd >= 0)
+		close(btf_fd);
+}
+
+struct btf_file_test {
+	const char *file;
+	bool btf_kv_notfound;
+};
+
+static struct btf_file_test file_tests[] = {
+	{ .file = "test_btf_newkv.bpf.o", },
+	{ .file = "test_btf_nokv.bpf.o", .btf_kv_notfound = true, },
+};
+
+static void do_test_file(unsigned int test_num)
+{
+	const struct btf_file_test *test = &file_tests[test_num - 1];
+	const char *expected_fnames[] = {"_dummy_tracepoint",
+					 "test_long_fname_1",
+					 "test_long_fname_2"};
+	struct btf_ext *btf_ext = NULL;
+	struct bpf_prog_info info = {};
+	struct bpf_object *obj = NULL;
+	struct bpf_func_info *finfo;
+	struct bpf_program *prog;
+	__u32 info_len, rec_size;
+	bool has_btf_ext = false;
+	struct btf *btf = NULL;
+	void *func_info = NULL;
+	struct bpf_map *map;
+	int i, err, prog_fd;
+
+	if (!test__start_subtest(test->file))
+		return;
+
+	btf = btf__parse_elf(test->file, &btf_ext);
+	err = libbpf_get_error(btf);
+	if (err) {
+		if (err == -ENOENT) {
+			printf("%s:SKIP: No ELF %s found", __func__, BTF_ELF_SEC);
+			test__skip();
+			return;
+		}
+		return;
+	}
+	btf__free(btf);
+
+	has_btf_ext = btf_ext != NULL;
+	btf_ext__free(btf_ext);
+
+	/* temporary disable LIBBPF_STRICT_MAP_DEFINITIONS to test legacy maps */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL & ~LIBBPF_STRICT_MAP_DEFINITIONS);
+	obj = bpf_object__open(test->file);
+	err = libbpf_get_error(obj);
+	if (CHECK(err, "obj: %d", err))
+		return;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (CHECK(!prog, "Cannot find bpf_prog")) {
+		err = -1;
+		goto done;
+	}
+
+	bpf_program__set_type(prog, BPF_PROG_TYPE_TRACEPOINT);
+	err = bpf_object__load(obj);
+	if (CHECK(err < 0, "bpf_object__load: %d", err))
+		goto done;
+	prog_fd = bpf_program__fd(prog);
+
+	map = bpf_object__find_map_by_name(obj, "btf_map");
+	if (CHECK(!map, "btf_map not found")) {
+		err = -1;
+		goto done;
+	}
+
+	err = (bpf_map__btf_key_type_id(map) == 0 || bpf_map__btf_value_type_id(map) == 0)
+		!= test->btf_kv_notfound;
+	if (CHECK(err, "btf_key_type_id:%u btf_value_type_id:%u test->btf_kv_notfound:%u",
+		  bpf_map__btf_key_type_id(map), bpf_map__btf_value_type_id(map),
+		  test->btf_kv_notfound))
+		goto done;
+
+	if (!has_btf_ext)
+		goto skip;
+
+	/* get necessary program info */
+	info_len = sizeof(struct bpf_prog_info);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+
+	if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
+		fprintf(stderr, "%s\n", btf_log_buf);
+		err = -1;
+		goto done;
+	}
+	if (CHECK(info.nr_func_info != 3,
+		  "incorrect info.nr_func_info (1st) %d",
+		  info.nr_func_info)) {
+		err = -1;
+		goto done;
+	}
+	rec_size = info.func_info_rec_size;
+	if (CHECK(rec_size != sizeof(struct bpf_func_info),
+		  "incorrect info.func_info_rec_size (1st) %d\n", rec_size)) {
+		err = -1;
+		goto done;
+	}
+
+	func_info = malloc(info.nr_func_info * rec_size);
+	if (CHECK(!func_info, "out of memory")) {
+		err = -1;
+		goto done;
+	}
+
+	/* reset info to only retrieve func_info related data */
+	memset(&info, 0, sizeof(info));
+	info.nr_func_info = 3;
+	info.func_info_rec_size = rec_size;
+	info.func_info = ptr_to_u64(func_info);
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+
+	if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
+		fprintf(stderr, "%s\n", btf_log_buf);
+		err = -1;
+		goto done;
+	}
+	if (CHECK(info.nr_func_info != 3,
+		  "incorrect info.nr_func_info (2nd) %d",
+		  info.nr_func_info)) {
+		err = -1;
+		goto done;
+	}
+	if (CHECK(info.func_info_rec_size != rec_size,
+		  "incorrect info.func_info_rec_size (2nd) %d",
+		  info.func_info_rec_size)) {
+		err = -1;
+		goto done;
+	}
+
+	btf = btf__load_from_kernel_by_id(info.btf_id);
+	err = libbpf_get_error(btf);
+	if (CHECK(err, "cannot get btf from kernel, err: %d", err))
+		goto done;
+
+	/* check three functions */
+	finfo = func_info;
+	for (i = 0; i < 3; i++) {
+		const struct btf_type *t;
+		const char *fname;
+
+		t = btf__type_by_id(btf, finfo->type_id);
+		if (CHECK(!t, "btf__type_by_id failure: id %u",
+			  finfo->type_id)) {
+			err = -1;
+			goto done;
+		}
+
+		fname = btf__name_by_offset(btf, t->name_off);
+		err = strcmp(fname, expected_fnames[i]);
+		/* for the second and third functions in .text section,
+		 * the compiler may order them either way.
+		 */
+		if (i && err)
+			err = strcmp(fname, expected_fnames[3 - i]);
+		if (CHECK(err, "incorrect fname %s", fname ? : "")) {
+			err = -1;
+			goto done;
+		}
+
+		finfo = (void *)finfo + rec_size;
+	}
+
+skip:
+	fprintf(stderr, "OK");
+
+done:
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	btf__free(btf);
+	free(func_info);
+	bpf_object__close(obj);
+}
+
+const char *pprint_enum_str[] = {
+	"ENUM_ZERO",
+	"ENUM_ONE",
+	"ENUM_TWO",
+	"ENUM_THREE",
+};
+
+struct pprint_mapv {
+	uint32_t ui32;
+	uint16_t ui16;
+	/* 2 bytes hole */
+	int32_t si32;
+	uint32_t unused_bits2a:2,
+		bits28:28,
+		unused_bits2b:2;
+	union {
+		uint64_t ui64;
+		uint8_t ui8a[8];
+	};
+	enum {
+		ENUM_ZERO,
+		ENUM_ONE,
+		ENUM_TWO,
+		ENUM_THREE,
+	} aenum;
+	uint32_t ui32b;
+	uint32_t bits2c:2;
+	uint8_t si8_4[2][2];
+};
+
+#ifdef __SIZEOF_INT128__
+struct pprint_mapv_int128 {
+	__int128 si128a;
+	__int128 si128b;
+	unsigned __int128 bits3:3;
+	unsigned __int128 bits80:80;
+	unsigned __int128 ui128;
+};
+#endif
+
+static struct btf_raw_test pprint_test_template[] = {
+{
+	.raw_types = {
+		/* unsigned char */			/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
+		/* unsigned short */			/* [2] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
+		/* unsigned int */			/* [3] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
+		/* int */				/* [4] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		/* unsigned long long */		/* [5] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
+		/* 2 bits */				/* [6] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 2, 2),
+		/* 28 bits */				/* [7] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 28, 4),
+		/* uint8_t[8] */			/* [8] */
+		BTF_TYPE_ARRAY_ENC(9, 1, 8),
+		/* typedef unsigned char uint8_t */	/* [9] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),
+		/* typedef unsigned short uint16_t */	/* [10] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),
+		/* typedef unsigned int uint32_t */	/* [11] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),
+		/* typedef int int32_t */		/* [12] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),
+		/* typedef unsigned long long uint64_t *//* [13] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 5),
+		/* union (anon) */			/* [14] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
+		BTF_MEMBER_ENC(NAME_TBD, 8, 0),	/* uint8_t ui8a[8]; */
+		/* enum (anon) */			/* [15] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		BTF_ENUM_ENC(NAME_TBD, 2),
+		BTF_ENUM_ENC(NAME_TBD, 3),
+		/* struct pprint_mapv */		/* [16] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 11), 40),
+		BTF_MEMBER_ENC(NAME_TBD, 11, 0),	/* uint32_t ui32 */
+		BTF_MEMBER_ENC(NAME_TBD, 10, 32),	/* uint16_t ui16 */
+		BTF_MEMBER_ENC(NAME_TBD, 12, 64),	/* int32_t si32 */
+		BTF_MEMBER_ENC(NAME_TBD, 6, 96),	/* unused_bits2a */
+		BTF_MEMBER_ENC(NAME_TBD, 7, 98),	/* bits28 */
+		BTF_MEMBER_ENC(NAME_TBD, 6, 126),	/* unused_bits2b */
+		BTF_MEMBER_ENC(0, 14, 128),		/* union (anon) */
+		BTF_MEMBER_ENC(NAME_TBD, 15, 192),	/* aenum */
+		BTF_MEMBER_ENC(NAME_TBD, 11, 224),	/* uint32_t ui32b */
+		BTF_MEMBER_ENC(NAME_TBD, 6, 256),	/* bits2c */
+		BTF_MEMBER_ENC(NAME_TBD, 17, 264),	/* si8_4 */
+		BTF_TYPE_ARRAY_ENC(18, 1, 2),		/* [17] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 2),		/* [18] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"),
+	.key_size = sizeof(unsigned int),
+	.value_size = sizeof(struct pprint_mapv),
+	.key_type_id = 3,	/* unsigned int */
+	.value_type_id = 16,	/* struct pprint_mapv */
+	.max_entries = 128,
+},
+
+{
+	/* this type will have the same type as the
+	 * first .raw_types definition, but struct type will
+	 * be encoded with kind_flag set.
+	 */
+	.raw_types = {
+		/* unsigned char */			/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
+		/* unsigned short */			/* [2] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
+		/* unsigned int */			/* [3] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
+		/* int */				/* [4] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		/* unsigned long long */		/* [5] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),	/* [6] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),	/* [7] */
+		/* uint8_t[8] */			/* [8] */
+		BTF_TYPE_ARRAY_ENC(9, 1, 8),
+		/* typedef unsigned char uint8_t */	/* [9] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),
+		/* typedef unsigned short uint16_t */	/* [10] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),
+		/* typedef unsigned int uint32_t */	/* [11] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),
+		/* typedef int int32_t */		/* [12] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),
+		/* typedef unsigned long long uint64_t *//* [13] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 5),
+		/* union (anon) */			/* [14] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
+		BTF_MEMBER_ENC(NAME_TBD, 8, 0),	/* uint8_t ui8a[8]; */
+		/* enum (anon) */			/* [15] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		BTF_ENUM_ENC(NAME_TBD, 2),
+		BTF_ENUM_ENC(NAME_TBD, 3),
+		/* struct pprint_mapv */		/* [16] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40),
+		BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)),	/* uint32_t ui32 */
+		BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)),	/* uint16_t ui16 */
+		BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)),	/* int32_t si32 */
+		BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 96)),	/* unused_bits2a */
+		BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)),	/* bits28 */
+		BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 126)),	/* unused_bits2b */
+		BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)),	/* union (anon) */
+		BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)),	/* aenum */
+		BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)),	/* uint32_t ui32b */
+		BTF_MEMBER_ENC(NAME_TBD, 6, BTF_MEMBER_OFFSET(2, 256)),	/* bits2c */
+		BTF_MEMBER_ENC(NAME_TBD, 17, 264),	/* si8_4 */
+		BTF_TYPE_ARRAY_ENC(18, 1, 2),		/* [17] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 2),		/* [18] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0si8_4"),
+	.key_size = sizeof(unsigned int),
+	.value_size = sizeof(struct pprint_mapv),
+	.key_type_id = 3,	/* unsigned int */
+	.value_type_id = 16,	/* struct pprint_mapv */
+	.max_entries = 128,
+},
+
+{
+	/* this type will have the same layout as the
+	 * first .raw_types definition. The struct type will
+	 * be encoded with kind_flag set, bitfield members
+	 * are added typedef/const/volatile, and bitfield members
+	 * will have both int and enum types.
+	 */
+	.raw_types = {
+		/* unsigned char */			/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 8, 1),
+		/* unsigned short */			/* [2] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 16, 2),
+		/* unsigned int */			/* [3] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
+		/* int */				/* [4] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),
+		/* unsigned long long */		/* [5] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),	/* [6] */
+		BTF_TYPE_INT_ENC(0, 0, 0, 32, 4),	/* [7] */
+		/* uint8_t[8] */			/* [8] */
+		BTF_TYPE_ARRAY_ENC(9, 1, 8),
+		/* typedef unsigned char uint8_t */	/* [9] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 1),
+		/* typedef unsigned short uint16_t */	/* [10] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),
+		/* typedef unsigned int uint32_t */	/* [11] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 3),
+		/* typedef int int32_t */		/* [12] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 4),
+		/* typedef unsigned long long uint64_t *//* [13] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 5),
+		/* union (anon) */			/* [14] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_UNION, 0, 2), 8),
+		BTF_MEMBER_ENC(NAME_TBD, 13, 0),/* uint64_t ui64; */
+		BTF_MEMBER_ENC(NAME_TBD, 8, 0),	/* uint8_t ui8a[8]; */
+		/* enum (anon) */			/* [15] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 4), 4),
+		BTF_ENUM_ENC(NAME_TBD, 0),
+		BTF_ENUM_ENC(NAME_TBD, 1),
+		BTF_ENUM_ENC(NAME_TBD, 2),
+		BTF_ENUM_ENC(NAME_TBD, 3),
+		/* struct pprint_mapv */		/* [16] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 11), 40),
+		BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 0)),	/* uint32_t ui32 */
+		BTF_MEMBER_ENC(NAME_TBD, 10, BTF_MEMBER_OFFSET(0, 32)),	/* uint16_t ui16 */
+		BTF_MEMBER_ENC(NAME_TBD, 12, BTF_MEMBER_OFFSET(0, 64)),	/* int32_t si32 */
+		BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 96)),	/* unused_bits2a */
+		BTF_MEMBER_ENC(NAME_TBD, 7, BTF_MEMBER_OFFSET(28, 98)),	/* bits28 */
+		BTF_MEMBER_ENC(NAME_TBD, 19, BTF_MEMBER_OFFSET(2, 126)),/* unused_bits2b */
+		BTF_MEMBER_ENC(0, 14, BTF_MEMBER_OFFSET(0, 128)),	/* union (anon) */
+		BTF_MEMBER_ENC(NAME_TBD, 15, BTF_MEMBER_OFFSET(0, 192)),	/* aenum */
+		BTF_MEMBER_ENC(NAME_TBD, 11, BTF_MEMBER_OFFSET(0, 224)),	/* uint32_t ui32b */
+		BTF_MEMBER_ENC(NAME_TBD, 17, BTF_MEMBER_OFFSET(2, 256)),	/* bits2c */
+		BTF_MEMBER_ENC(NAME_TBD, 20, BTF_MEMBER_OFFSET(0, 264)),	/* si8_4 */
+		/* typedef unsigned int ___int */	/* [17] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 18),
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), 6),	/* [18] */
+		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), 15),	/* [19] */
+		BTF_TYPE_ARRAY_ENC(21, 1, 2),					/* [20] */
+		BTF_TYPE_ARRAY_ENC(1, 1, 2),					/* [21] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0unsigned char\0unsigned short\0unsigned int\0int\0unsigned long long\0uint8_t\0uint16_t\0uint32_t\0int32_t\0uint64_t\0ui64\0ui8a\0ENUM_ZERO\0ENUM_ONE\0ENUM_TWO\0ENUM_THREE\0pprint_mapv\0ui32\0ui16\0si32\0unused_bits2a\0bits28\0unused_bits2b\0aenum\0ui32b\0bits2c\0___int\0si8_4"),
+	.key_size = sizeof(unsigned int),
+	.value_size = sizeof(struct pprint_mapv),
+	.key_type_id = 3,	/* unsigned int */
+	.value_type_id = 16,	/* struct pprint_mapv */
+	.max_entries = 128,
+},
+
+#ifdef __SIZEOF_INT128__
+{
+	/* test int128 */
+	.raw_types = {
+		/* unsigned int */				/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),
+		/* __int128 */					/* [2] */
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 128, 16),
+		/* unsigned __int128 */				/* [3] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 128, 16),
+		/* struct pprint_mapv_int128 */			/* [4] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 5), 64),
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 0)),		/* si128a */
+		BTF_MEMBER_ENC(NAME_TBD, 2, BTF_MEMBER_OFFSET(0, 128)),		/* si128b */
+		BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(3, 256)),		/* bits3 */
+		BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(80, 259)),	/* bits80 */
+		BTF_MEMBER_ENC(NAME_TBD, 3, BTF_MEMBER_OFFSET(0, 384)),		/* ui128 */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0unsigned int\0__int128\0unsigned __int128\0pprint_mapv_int128\0si128a\0si128b\0bits3\0bits80\0ui128"),
+	.key_size = sizeof(unsigned int),
+	.value_size = sizeof(struct pprint_mapv_int128),
+	.key_type_id = 1,
+	.value_type_id = 4,
+	.max_entries = 128,
+	.mapv_kind = PPRINT_MAPV_KIND_INT128,
+},
+#endif
+
+};
+
+static struct btf_pprint_test_meta {
+	const char *descr;
+	enum bpf_map_type map_type;
+	const char *map_name;
+	bool ordered_map;
+	bool lossless_map;
+	bool percpu_map;
+} pprint_tests_meta[] = {
+{
+	.descr = "BTF pretty print array",
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "pprint_test_array",
+	.ordered_map = true,
+	.lossless_map = true,
+	.percpu_map = false,
+},
+
+{
+	.descr = "BTF pretty print hash",
+	.map_type = BPF_MAP_TYPE_HASH,
+	.map_name = "pprint_test_hash",
+	.ordered_map = false,
+	.lossless_map = true,
+	.percpu_map = false,
+},
+
+{
+	.descr = "BTF pretty print lru hash",
+	.map_type = BPF_MAP_TYPE_LRU_HASH,
+	.map_name = "pprint_test_lru_hash",
+	.ordered_map = false,
+	.lossless_map = false,
+	.percpu_map = false,
+},
+
+{
+	.descr = "BTF pretty print percpu array",
+	.map_type = BPF_MAP_TYPE_PERCPU_ARRAY,
+	.map_name = "pprint_test_percpu_array",
+	.ordered_map = true,
+	.lossless_map = true,
+	.percpu_map = true,
+},
+
+{
+	.descr = "BTF pretty print percpu hash",
+	.map_type = BPF_MAP_TYPE_PERCPU_HASH,
+	.map_name = "pprint_test_percpu_hash",
+	.ordered_map = false,
+	.lossless_map = true,
+	.percpu_map = true,
+},
+
+{
+	.descr = "BTF pretty print lru percpu hash",
+	.map_type = BPF_MAP_TYPE_LRU_PERCPU_HASH,
+	.map_name = "pprint_test_lru_percpu_hash",
+	.ordered_map = false,
+	.lossless_map = false,
+	.percpu_map = true,
+},
+
+};
+
+static size_t get_pprint_mapv_size(enum pprint_mapv_kind_t mapv_kind)
+{
+	if (mapv_kind == PPRINT_MAPV_KIND_BASIC)
+		return sizeof(struct pprint_mapv);
+
+#ifdef __SIZEOF_INT128__
+	if (mapv_kind == PPRINT_MAPV_KIND_INT128)
+		return sizeof(struct pprint_mapv_int128);
+#endif
+
+	assert(0);
+	return 0;
+}
+
+static void set_pprint_mapv(enum pprint_mapv_kind_t mapv_kind,
+			    void *mapv, uint32_t i,
+			    int num_cpus, int rounded_value_size)
+{
+	int cpu;
+
+	if (mapv_kind == PPRINT_MAPV_KIND_BASIC) {
+		struct pprint_mapv *v = mapv;
+
+		for (cpu = 0; cpu < num_cpus; cpu++) {
+			v->ui32 = i + cpu;
+			v->si32 = -i;
+			v->unused_bits2a = 3;
+			v->bits28 = i;
+			v->unused_bits2b = 3;
+			v->ui64 = i;
+			v->aenum = i & 0x03;
+			v->ui32b = 4;
+			v->bits2c = 1;
+			v->si8_4[0][0] = (cpu + i) & 0xff;
+			v->si8_4[0][1] = (cpu + i + 1) & 0xff;
+			v->si8_4[1][0] = (cpu + i + 2) & 0xff;
+			v->si8_4[1][1] = (cpu + i + 3) & 0xff;
+			v = (void *)v + rounded_value_size;
+		}
+	}
+
+#ifdef __SIZEOF_INT128__
+	if (mapv_kind == PPRINT_MAPV_KIND_INT128) {
+		struct pprint_mapv_int128 *v = mapv;
+
+		for (cpu = 0; cpu < num_cpus; cpu++) {
+			v->si128a = i;
+			v->si128b = -i;
+			v->bits3 = i & 0x07;
+			v->bits80 = (((unsigned __int128)1) << 64) + i;
+			v->ui128 = (((unsigned __int128)2) << 64) + i;
+			v = (void *)v + rounded_value_size;
+		}
+	}
+#endif
+}
+
+ssize_t get_pprint_expected_line(enum pprint_mapv_kind_t mapv_kind,
+				 char *expected_line, ssize_t line_size,
+				 bool percpu_map, unsigned int next_key,
+				 int cpu, void *mapv)
+{
+	ssize_t nexpected_line = -1;
+
+	if (mapv_kind == PPRINT_MAPV_KIND_BASIC) {
+		struct pprint_mapv *v = mapv;
+
+		nexpected_line = snprintf(expected_line, line_size,
+					  "%s%u: {%u,0,%d,0x%x,0x%x,0x%x,"
+					  "{%llu|[%u,%u,%u,%u,%u,%u,%u,%u]},%s,"
+					  "%u,0x%x,[[%d,%d],[%d,%d]]}\n",
+					  percpu_map ? "\tcpu" : "",
+					  percpu_map ? cpu : next_key,
+					  v->ui32, v->si32,
+					  v->unused_bits2a,
+					  v->bits28,
+					  v->unused_bits2b,
+					  (__u64)v->ui64,
+					  v->ui8a[0], v->ui8a[1],
+					  v->ui8a[2], v->ui8a[3],
+					  v->ui8a[4], v->ui8a[5],
+					  v->ui8a[6], v->ui8a[7],
+					  pprint_enum_str[v->aenum],
+					  v->ui32b,
+					  v->bits2c,
+					  v->si8_4[0][0], v->si8_4[0][1],
+					  v->si8_4[1][0], v->si8_4[1][1]);
+	}
+
+#ifdef __SIZEOF_INT128__
+	if (mapv_kind == PPRINT_MAPV_KIND_INT128) {
+		struct pprint_mapv_int128 *v = mapv;
+
+		nexpected_line = snprintf(expected_line, line_size,
+					  "%s%u: {0x%lx,0x%lx,0x%lx,"
+					  "0x%lx%016lx,0x%lx%016lx}\n",
+					  percpu_map ? "\tcpu" : "",
+					  percpu_map ? cpu : next_key,
+					  (uint64_t)v->si128a,
+					  (uint64_t)v->si128b,
+					  (uint64_t)v->bits3,
+					  (uint64_t)(v->bits80 >> 64),
+					  (uint64_t)v->bits80,
+					  (uint64_t)(v->ui128 >> 64),
+					  (uint64_t)v->ui128);
+	}
+#endif
+
+	return nexpected_line;
+}
+
+static int check_line(const char *expected_line, int nexpected_line,
+		      int expected_line_len, const char *line)
+{
+	if (CHECK(nexpected_line == expected_line_len,
+		  "expected_line is too long"))
+		return -1;
+
+	if (strcmp(expected_line, line)) {
+		fprintf(stderr, "unexpected pprint output\n");
+		fprintf(stderr, "expected: %s", expected_line);
+		fprintf(stderr, "    read: %s", line);
+		return -1;
+	}
+
+	return 0;
+}
+
+
+static void do_test_pprint(int test_num)
+{
+	const struct btf_raw_test *test = &pprint_test_template[test_num];
+	enum pprint_mapv_kind_t mapv_kind = test->mapv_kind;
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	bool ordered_map, lossless_map, percpu_map;
+	int err, ret, num_cpus, rounded_value_size;
+	unsigned int key, nr_read_elems;
+	int map_fd = -1, btf_fd = -1;
+	unsigned int raw_btf_size;
+	char expected_line[255];
+	FILE *pin_file = NULL;
+	char pin_path[255];
+	size_t line_len = 0;
+	char *line = NULL;
+	void *mapv = NULL;
+	uint8_t *raw_btf;
+	ssize_t nread;
+
+	if (!test__start_subtest(test->descr))
+		return;
+
+	raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types,
+				 test->str_sec, test->str_sec_size,
+				 &raw_btf_size, NULL);
+
+	if (!raw_btf)
+		return;
+
+	*btf_log_buf = '\0';
+	btf_fd = load_raw_btf(raw_btf, raw_btf_size);
+	free(raw_btf);
+
+	if (CHECK(btf_fd < 0, "errno:%d\n", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	opts.btf_fd = btf_fd;
+	opts.btf_key_type_id = test->key_type_id;
+	opts.btf_value_type_id = test->value_type_id;
+	map_fd = bpf_map_create(test->map_type, test->map_name,
+				test->key_size, test->value_size, test->max_entries, &opts);
+	if (CHECK(map_fd < 0, "errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	ret = snprintf(pin_path, sizeof(pin_path), "%s/%s",
+		       "/sys/fs/bpf", test->map_name);
+
+	if (CHECK(ret >= sizeof(pin_path), "pin_path %s/%s is too long",
+		  "/sys/fs/bpf", test->map_name)) {
+		err = -1;
+		goto done;
+	}
+
+	err = bpf_obj_pin(map_fd, pin_path);
+	if (CHECK(err, "bpf_obj_pin(%s): errno:%d.", pin_path, errno))
+		goto done;
+
+	percpu_map = test->percpu_map;
+	num_cpus = percpu_map ? bpf_num_possible_cpus() : 1;
+	rounded_value_size = round_up(get_pprint_mapv_size(mapv_kind), 8);
+	mapv = calloc(num_cpus, rounded_value_size);
+	if (CHECK(!mapv, "mapv allocation failure")) {
+		err = -1;
+		goto done;
+	}
+
+	for (key = 0; key < test->max_entries; key++) {
+		set_pprint_mapv(mapv_kind, mapv, key, num_cpus, rounded_value_size);
+		bpf_map_update_elem(map_fd, &key, mapv, 0);
+	}
+
+	pin_file = fopen(pin_path, "r");
+	if (CHECK(!pin_file, "fopen(%s): errno:%d", pin_path, errno)) {
+		err = -1;
+		goto done;
+	}
+
+	/* Skip lines start with '#' */
+	while ((nread = getline(&line, &line_len, pin_file)) > 0 &&
+	       *line == '#')
+		;
+
+	if (CHECK(nread <= 0, "Unexpected EOF")) {
+		err = -1;
+		goto done;
+	}
+
+	nr_read_elems = 0;
+	ordered_map = test->ordered_map;
+	lossless_map = test->lossless_map;
+	do {
+		ssize_t nexpected_line;
+		unsigned int next_key;
+		void *cmapv;
+		int cpu;
+
+		next_key = ordered_map ? nr_read_elems : atoi(line);
+		set_pprint_mapv(mapv_kind, mapv, next_key, num_cpus, rounded_value_size);
+		cmapv = mapv;
+
+		for (cpu = 0; cpu < num_cpus; cpu++) {
+			if (percpu_map) {
+				/* for percpu map, the format looks like:
+				 * <key>: {
+				 *	cpu0: <value_on_cpu0>
+				 *	cpu1: <value_on_cpu1>
+				 *	...
+				 *	cpun: <value_on_cpun>
+				 * }
+				 *
+				 * let us verify the line containing the key here.
+				 */
+				if (cpu == 0) {
+					nexpected_line = snprintf(expected_line,
+								  sizeof(expected_line),
+								  "%u: {\n",
+								  next_key);
+
+					err = check_line(expected_line, nexpected_line,
+							 sizeof(expected_line), line);
+					if (err < 0)
+						goto done;
+				}
+
+				/* read value@cpu */
+				nread = getline(&line, &line_len, pin_file);
+				if (nread < 0)
+					break;
+			}
+
+			nexpected_line = get_pprint_expected_line(mapv_kind, expected_line,
+								  sizeof(expected_line),
+								  percpu_map, next_key,
+								  cpu, cmapv);
+			err = check_line(expected_line, nexpected_line,
+					 sizeof(expected_line), line);
+			if (err < 0)
+				goto done;
+
+			cmapv = cmapv + rounded_value_size;
+		}
+
+		if (percpu_map) {
+			/* skip the last bracket for the percpu map */
+			nread = getline(&line, &line_len, pin_file);
+			if (nread < 0)
+				break;
+		}
+
+		nread = getline(&line, &line_len, pin_file);
+	} while (++nr_read_elems < test->max_entries && nread > 0);
+
+	if (lossless_map &&
+	    CHECK(nr_read_elems < test->max_entries,
+		  "Unexpected EOF. nr_read_elems:%u test->max_entries:%u",
+		  nr_read_elems, test->max_entries)) {
+		err = -1;
+		goto done;
+	}
+
+	if (CHECK(nread > 0, "Unexpected extra pprint output: %s", line)) {
+		err = -1;
+		goto done;
+	}
+
+	err = 0;
+
+done:
+	if (mapv)
+		free(mapv);
+	if (!err)
+		fprintf(stderr, "OK");
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+	if (btf_fd >= 0)
+		close(btf_fd);
+	if (map_fd >= 0)
+		close(map_fd);
+	if (pin_file)
+		fclose(pin_file);
+	unlink(pin_path);
+	free(line);
+}
+
+static void test_pprint(void)
+{
+	unsigned int i;
+
+	/* test various maps with the first test template */
+	for (i = 0; i < ARRAY_SIZE(pprint_tests_meta); i++) {
+		pprint_test_template[0].descr = pprint_tests_meta[i].descr;
+		pprint_test_template[0].map_type = pprint_tests_meta[i].map_type;
+		pprint_test_template[0].map_name = pprint_tests_meta[i].map_name;
+		pprint_test_template[0].ordered_map = pprint_tests_meta[i].ordered_map;
+		pprint_test_template[0].lossless_map = pprint_tests_meta[i].lossless_map;
+		pprint_test_template[0].percpu_map = pprint_tests_meta[i].percpu_map;
+
+		do_test_pprint(0);
+	}
+
+	/* test rest test templates with the first map */
+	for (i = 1; i < ARRAY_SIZE(pprint_test_template); i++) {
+		pprint_test_template[i].descr = pprint_tests_meta[0].descr;
+		pprint_test_template[i].map_type = pprint_tests_meta[0].map_type;
+		pprint_test_template[i].map_name = pprint_tests_meta[0].map_name;
+		pprint_test_template[i].ordered_map = pprint_tests_meta[0].ordered_map;
+		pprint_test_template[i].lossless_map = pprint_tests_meta[0].lossless_map;
+		pprint_test_template[i].percpu_map = pprint_tests_meta[0].percpu_map;
+		do_test_pprint(i);
+	}
+}
+
+#define BPF_LINE_INFO_ENC(insn_off, file_off, line_off, line_num, line_col) \
+	(insn_off), (file_off), (line_off), ((line_num) << 10 | ((line_col) & 0x3ff))
+
+static struct prog_info_raw_test {
+	const char *descr;
+	const char *str_sec;
+	const char *err_str;
+	__u32 raw_types[MAX_NR_RAW_U32];
+	__u32 str_sec_size;
+	struct bpf_insn insns[MAX_INSNS];
+	__u32 prog_type;
+	__u32 func_info[MAX_SUBPROGS][2];
+	__u32 func_info_rec_size;
+	__u32 func_info_cnt;
+	__u32 line_info[MAX_NR_RAW_U32];
+	__u32 line_info_rec_size;
+	__u32 nr_jited_ksyms;
+	bool expected_prog_load_failure;
+	__u32 dead_code_cnt;
+	__u32 dead_code_mask;
+	__u32 dead_func_cnt;
+	__u32 dead_func_mask;
+} info_raw_tests[] = {
+{
+	.descr = "func_type (main func + one sub)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),	/* [2] */
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [4] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [5] */
+		BTF_FUNC_ENC(NAME_TBD, 4),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
+	.str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
+	.insns = {
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info = { {0, 5}, {3, 6} },
+	.func_info_rec_size = 8,
+	.func_info_cnt = 2,
+	.line_info = { BTF_END_RAW },
+},
+
+{
+	.descr = "func_type (Incorrect func_info_rec_size)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),	/* [2] */
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [4] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [5] */
+		BTF_FUNC_ENC(NAME_TBD, 4),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
+	.str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
+	.insns = {
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info = { {0, 5}, {3, 6} },
+	.func_info_rec_size = 4,
+	.func_info_cnt = 2,
+	.line_info = { BTF_END_RAW },
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "func_type (Incorrect func_info_cnt)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),	/* [2] */
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [4] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [5] */
+		BTF_FUNC_ENC(NAME_TBD, 4),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
+	.str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
+	.insns = {
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info = { {0, 5}, {3, 6} },
+	.func_info_rec_size = 8,
+	.func_info_cnt = 1,
+	.line_info = { BTF_END_RAW },
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "func_type (Incorrect bpf_func_info.insn_off)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 32, 4),	/* [2] */
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [3] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+		BTF_FUNC_PROTO_ENC(1, 2),			/* [4] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 2),
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 3),			/* [5] */
+		BTF_FUNC_ENC(NAME_TBD, 4),			/* [6] */
+		BTF_END_RAW,
+	},
+	.str_sec = "\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB",
+	.str_sec_size = sizeof("\0int\0unsigned int\0a\0b\0c\0d\0funcA\0funcB"),
+	.insns = {
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info = { {0, 5}, {2, 6} },
+	.func_info_rec_size = 8,
+	.func_info_cnt = 2,
+	.line_info = { BTF_END_RAW },
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (No subprog)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+},
+
+{
+	.descr = "line_info (No subprog. insn_off >= prog->len)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
+		BPF_LINE_INFO_ENC(4, 0, 0, 5, 6),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+	.err_str = "line_info[4].insn_off",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (Zero bpf insn code)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_TYPE_INT_ENC(NAME_TBD, 0, 0, 64, 8),	/* [2] */
+		BTF_TYPEDEF_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0unsigned long\0u64\0u64 a=1;\0return a;"),
+	.insns = {
+		BPF_LD_IMM64(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(1, 0, 0, 2, 9),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+	.err_str = "Invalid insn code at line_info[1]",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (No subprog. zero tailing line_info",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0,
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0,
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0,
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 0,
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32),
+	.nr_jited_ksyms = 1,
+},
+
+{
+	.descr = "line_info (No subprog. nonzero tailing line_info)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10), 0,
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9), 0,
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8), 0,
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7), 1,
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info) + sizeof(__u32),
+	.nr_jited_ksyms = 1,
+	.err_str = "nonzero tailing record in line_info",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (subprog)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+},
+
+{
+	.descr = "line_info (subprog + func_info)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 2,
+	.func_info_rec_size = 8,
+	.func_info = { {0, 4}, {5, 3} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+},
+
+{
+	.descr = "line_info (subprog. missing 1st func line info)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.err_str = "missing bpf_line_info for func#0",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (subprog. missing 2nd func line info)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.err_str = "missing bpf_line_info for func#1",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (subprog. unordered insn offset)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1+1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.err_str = "Invalid line_info[2].insn_off",
+	.expected_prog_load_failure = true,
+},
+
+{
+	.descr = "line_info (dead start)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0/* dead jmp */\0int a=1;\0int b=2;\0return a + b;\0return a + b;"),
+	.insns = {
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 7),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 6),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+	.dead_code_cnt = 1,
+	.dead_code_mask = 0x01,
+},
+
+{
+	.descr = "line_info (dead end)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0int a=1;\0int b=2;\0return a + b;\0/* dead jmp */\0return a + b;\0/* dead exit */"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+		BPF_EXIT_INSN(),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 0,
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 12),
+		BPF_LINE_INFO_ENC(1, 0, NAME_TBD, 2, 11),
+		BPF_LINE_INFO_ENC(2, 0, NAME_TBD, 3, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 4, 9),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 5, 8),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 6, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+	.dead_code_cnt = 2,
+	.dead_code_mask = 0x28,
+},
+
+{
+	.descr = "line_info (dead code + subprog + func_info)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0sub\0main\0int a=1+1;\0/* dead jmp */"
+		    "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
+		    "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
+		    "\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 8),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 2,
+	.func_info_rec_size = 8,
+	.func_info = { {0, 4}, {14, 3} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(14, 0, NAME_TBD, 3, 8),
+		BPF_LINE_INFO_ENC(16, 0, NAME_TBD, 4, 7),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.dead_code_cnt = 9,
+	.dead_code_mask = 0x3fe,
+},
+
+{
+	.descr = "line_info (dead subprog)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */"
+		    "\0return 0;\0return 0;\0/* dead */\0/* dead */"
+		    "\0/* dead */\0return bla + 1;\0return bla + 1;"
+		    "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+		BPF_CALL_REL(3),
+		BPF_CALL_REL(5),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_REG(BPF_REG_0, 2),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 3,
+	.func_info_rec_size = 8,
+		.func_info = { {0, 4}, {6, 3}, {9, 5} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.dead_code_cnt = 3,
+	.dead_code_mask = 0x70,
+	.dead_func_cnt = 1,
+	.dead_func_mask = 0x2,
+},
+
+{
+	.descr = "line_info (dead last subprog)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0dead\0main\0int a=1+1;\0/* live call */"
+		    "\0return 0;\0/* dead */\0/* dead */"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+		BPF_CALL_REL(2),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 2,
+	.func_info_rec_size = 8,
+		.func_info = { {0, 4}, {5, 3} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 1,
+	.dead_code_cnt = 2,
+	.dead_code_mask = 0x18,
+	.dead_func_cnt = 1,
+	.dead_func_mask = 0x2,
+},
+
+{
+	.descr = "line_info (dead subprog + dead start)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* dead */"
+		    "\0return 0;\0return 0;\0return 0;"
+		    "\0/* dead */\0/* dead */\0/* dead */\0/* dead */"
+		    "\0return b + 1;\0return b + 1;\0return b + 1;"),
+	.insns = {
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+		BPF_CALL_REL(3),
+		BPF_CALL_REL(5),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_MOV64_REG(BPF_REG_0, 2),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 3,
+	.func_info_rec_size = 8,
+		.func_info = { {0, 4}, {7, 3}, {10, 5} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(10, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
+		BPF_LINE_INFO_ENC(13, 0, NAME_TBD, 2, 9),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.dead_code_cnt = 5,
+	.dead_code_mask = 0x1e2,
+	.dead_func_cnt = 1,
+	.dead_func_mask = 0x2,
+},
+
+{
+	.descr = "line_info (dead subprog + dead start w/ move)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [5] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0dead\0main\0func\0int a=1+1;\0/* live call */"
+		    "\0return 0;\0return 0;\0/* dead */\0/* dead */"
+		    "\0/* dead */\0return bla + 1;\0return bla + 1;"
+		    "\0return bla + 1;\0return func(a);\0b+=1;\0return b;"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+		BPF_CALL_REL(3),
+		BPF_CALL_REL(5),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_CALL_REL(1),
+		BPF_EXIT_INSN(),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_MOV64_REG(BPF_REG_0, 2),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 3,
+	.func_info_rec_size = 8,
+		.func_info = { {0, 4}, {6, 3}, {9, 5} },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(3, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(4, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(5, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(7, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(8, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(9, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(11, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(12, 0, NAME_TBD, 2, 9),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+	.dead_code_cnt = 3,
+	.dead_code_mask = 0x70,
+	.dead_func_cnt = 1,
+	.dead_func_mask = 0x2,
+},
+
+{
+	.descr = "line_info (dead end + subprog start w/ no linfo)",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+		BTF_FUNC_PROTO_ENC(1, 1),			/* [2] */
+			BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [3] */
+		BTF_FUNC_ENC(NAME_TBD, 2),			/* [4] */
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0int\0x\0main\0func\0/* main linfo */\0/* func linfo */"),
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 1, 3),
+		BPF_CALL_REL(3),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+		BPF_EXIT_INSN(),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info_cnt = 2,
+	.func_info_rec_size = 8,
+	.func_info = { {0, 3}, {6, 4}, },
+	.line_info = {
+		BPF_LINE_INFO_ENC(0, 0, NAME_TBD, 1, 10),
+		BPF_LINE_INFO_ENC(6, 0, NAME_TBD, 1, 10),
+		BTF_END_RAW,
+	},
+	.line_info_rec_size = sizeof(struct bpf_line_info),
+	.nr_jited_ksyms = 2,
+},
+
+};
+
+static size_t probe_prog_length(const struct bpf_insn *fp)
+{
+	size_t len;
+
+	for (len = MAX_INSNS - 1; len > 0; --len)
+		if (fp[len].code != 0 || fp[len].imm != 0)
+			break;
+	return len + 1;
+}
+
+static __u32 *patch_name_tbd(const __u32 *raw_u32,
+			     const char *str, __u32 str_off,
+			     unsigned int str_sec_size,
+			     unsigned int *ret_size)
+{
+	int i, raw_u32_size = get_raw_sec_size(raw_u32);
+	const char *end_str = str + str_sec_size;
+	const char *next_str = str + str_off;
+	__u32 *new_u32 = NULL;
+
+	if (raw_u32_size == -1)
+		return ERR_PTR(-EINVAL);
+
+	if (!raw_u32_size) {
+		*ret_size = 0;
+		return NULL;
+	}
+
+	new_u32 = malloc(raw_u32_size);
+	if (!new_u32)
+		return ERR_PTR(-ENOMEM);
+
+	for (i = 0; i < raw_u32_size / sizeof(raw_u32[0]); i++) {
+		if (raw_u32[i] == NAME_TBD) {
+			next_str = get_next_str(next_str, end_str);
+			if (CHECK(!next_str, "Error in getting next_str\n")) {
+				free(new_u32);
+				return ERR_PTR(-EINVAL);
+			}
+			new_u32[i] = next_str - str;
+			next_str += strlen(next_str);
+		} else {
+			new_u32[i] = raw_u32[i];
+		}
+	}
+
+	*ret_size = raw_u32_size;
+	return new_u32;
+}
+
+static int test_get_finfo(const struct prog_info_raw_test *test,
+			  int prog_fd)
+{
+	struct bpf_prog_info info = {};
+	struct bpf_func_info *finfo;
+	__u32 info_len, rec_size, i;
+	void *func_info = NULL;
+	__u32 nr_func_info;
+	int err;
+
+	/* get necessary lens */
+	info_len = sizeof(struct bpf_prog_info);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (CHECK(err < 0, "invalid get info (1st) errno:%d", errno)) {
+		fprintf(stderr, "%s\n", btf_log_buf);
+		return -1;
+	}
+	nr_func_info = test->func_info_cnt - test->dead_func_cnt;
+	if (CHECK(info.nr_func_info != nr_func_info,
+		  "incorrect info.nr_func_info (1st) %d",
+		  info.nr_func_info)) {
+		return -1;
+	}
+
+	rec_size = info.func_info_rec_size;
+	if (CHECK(rec_size != sizeof(struct bpf_func_info),
+		  "incorrect info.func_info_rec_size (1st) %d", rec_size)) {
+		return -1;
+	}
+
+	if (!info.nr_func_info)
+		return 0;
+
+	func_info = malloc(info.nr_func_info * rec_size);
+	if (CHECK(!func_info, "out of memory"))
+		return -1;
+
+	/* reset info to only retrieve func_info related data */
+	memset(&info, 0, sizeof(info));
+	info.nr_func_info = nr_func_info;
+	info.func_info_rec_size = rec_size;
+	info.func_info = ptr_to_u64(func_info);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (CHECK(err < 0, "invalid get info (2nd) errno:%d", errno)) {
+		fprintf(stderr, "%s\n", btf_log_buf);
+		err = -1;
+		goto done;
+	}
+	if (CHECK(info.nr_func_info != nr_func_info,
+		  "incorrect info.nr_func_info (2nd) %d",
+		  info.nr_func_info)) {
+		err = -1;
+		goto done;
+	}
+	if (CHECK(info.func_info_rec_size != rec_size,
+		  "incorrect info.func_info_rec_size (2nd) %d",
+		  info.func_info_rec_size)) {
+		err = -1;
+		goto done;
+	}
+
+	finfo = func_info;
+	for (i = 0; i < nr_func_info; i++) {
+		if (test->dead_func_mask & (1 << i))
+			continue;
+		if (CHECK(finfo->type_id != test->func_info[i][1],
+			  "incorrect func_type %u expected %u",
+			  finfo->type_id, test->func_info[i][1])) {
+			err = -1;
+			goto done;
+		}
+		finfo = (void *)finfo + rec_size;
+	}
+
+	err = 0;
+
+done:
+	free(func_info);
+	return err;
+}
+
+static int test_get_linfo(const struct prog_info_raw_test *test,
+			  const void *patched_linfo,
+			  __u32 cnt, int prog_fd)
+{
+	__u32 i, info_len, nr_jited_ksyms, nr_jited_func_lens;
+	__u64 *jited_linfo = NULL, *jited_ksyms = NULL;
+	__u32 rec_size, jited_rec_size, jited_cnt;
+	struct bpf_line_info *linfo = NULL;
+	__u32 cur_func_len, ksyms_found;
+	struct bpf_prog_info info = {};
+	__u32 *jited_func_lens = NULL;
+	__u64 cur_func_ksyms;
+	__u32 dead_insns;
+	int err;
+
+	jited_cnt = cnt;
+	rec_size = sizeof(*linfo);
+	jited_rec_size = sizeof(*jited_linfo);
+	if (test->nr_jited_ksyms)
+		nr_jited_ksyms = test->nr_jited_ksyms;
+	else
+		nr_jited_ksyms = test->func_info_cnt - test->dead_func_cnt;
+	nr_jited_func_lens = nr_jited_ksyms;
+
+	info_len = sizeof(struct bpf_prog_info);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (CHECK(err < 0, "err:%d errno:%d", err, errno)) {
+		err = -1;
+		goto done;
+	}
+
+	if (!info.jited_prog_len) {
+		/* prog is not jited */
+		jited_cnt = 0;
+		nr_jited_ksyms = 1;
+		nr_jited_func_lens = 1;
+	}
+
+	if (CHECK(info.nr_line_info != cnt ||
+		  info.nr_jited_line_info != jited_cnt ||
+		  info.nr_jited_ksyms != nr_jited_ksyms ||
+		  info.nr_jited_func_lens != nr_jited_func_lens ||
+		  (!info.nr_line_info && info.nr_jited_line_info),
+		  "info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) nr_jited_ksyms:%u(expected:%u) nr_jited_func_lens:%u(expected:%u)",
+		  info.nr_line_info, cnt,
+		  info.nr_jited_line_info, jited_cnt,
+		  info.nr_jited_ksyms, nr_jited_ksyms,
+		  info.nr_jited_func_lens, nr_jited_func_lens)) {
+		err = -1;
+		goto done;
+	}
+
+	if (CHECK(info.line_info_rec_size != sizeof(struct bpf_line_info) ||
+		  info.jited_line_info_rec_size != sizeof(__u64),
+		  "info: line_info_rec_size:%u(userspace expected:%u) jited_line_info_rec_size:%u(userspace expected:%u)",
+		  info.line_info_rec_size, rec_size,
+		  info.jited_line_info_rec_size, jited_rec_size)) {
+		err = -1;
+		goto done;
+	}
+
+	if (!cnt)
+		return 0;
+
+	rec_size = info.line_info_rec_size;
+	jited_rec_size = info.jited_line_info_rec_size;
+
+	memset(&info, 0, sizeof(info));
+
+	linfo = calloc(cnt, rec_size);
+	if (CHECK(!linfo, "!linfo")) {
+		err = -1;
+		goto done;
+	}
+	info.nr_line_info = cnt;
+	info.line_info_rec_size = rec_size;
+	info.line_info = ptr_to_u64(linfo);
+
+	if (jited_cnt) {
+		jited_linfo = calloc(jited_cnt, jited_rec_size);
+		jited_ksyms = calloc(nr_jited_ksyms, sizeof(*jited_ksyms));
+		jited_func_lens = calloc(nr_jited_func_lens,
+					 sizeof(*jited_func_lens));
+		if (CHECK(!jited_linfo || !jited_ksyms || !jited_func_lens,
+			  "jited_linfo:%p jited_ksyms:%p jited_func_lens:%p",
+			  jited_linfo, jited_ksyms, jited_func_lens)) {
+			err = -1;
+			goto done;
+		}
+
+		info.nr_jited_line_info = jited_cnt;
+		info.jited_line_info_rec_size = jited_rec_size;
+		info.jited_line_info = ptr_to_u64(jited_linfo);
+		info.nr_jited_ksyms = nr_jited_ksyms;
+		info.jited_ksyms = ptr_to_u64(jited_ksyms);
+		info.nr_jited_func_lens = nr_jited_func_lens;
+		info.jited_func_lens = ptr_to_u64(jited_func_lens);
+	}
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+
+	/*
+	 * Only recheck the info.*line_info* fields.
+	 * Other fields are not the concern of this test.
+	 */
+	if (CHECK(err < 0 ||
+		  info.nr_line_info != cnt ||
+		  (jited_cnt && !info.jited_line_info) ||
+		  info.nr_jited_line_info != jited_cnt ||
+		  info.line_info_rec_size != rec_size ||
+		  info.jited_line_info_rec_size != jited_rec_size,
+		  "err:%d errno:%d info: nr_line_info:%u(expected:%u) nr_jited_line_info:%u(expected:%u) line_info_rec_size:%u(expected:%u) jited_linfo_rec_size:%u(expected:%u) line_info:%p jited_line_info:%p",
+		  err, errno,
+		  info.nr_line_info, cnt,
+		  info.nr_jited_line_info, jited_cnt,
+		  info.line_info_rec_size, rec_size,
+		  info.jited_line_info_rec_size, jited_rec_size,
+		  (void *)(long)info.line_info,
+		  (void *)(long)info.jited_line_info)) {
+		err = -1;
+		goto done;
+	}
+
+	dead_insns = 0;
+	while (test->dead_code_mask & (1 << dead_insns))
+		dead_insns++;
+
+	CHECK(linfo[0].insn_off, "linfo[0].insn_off:%u",
+	      linfo[0].insn_off);
+	for (i = 1; i < cnt; i++) {
+		const struct bpf_line_info *expected_linfo;
+
+		while (test->dead_code_mask & (1 << (i + dead_insns)))
+			dead_insns++;
+
+		expected_linfo = patched_linfo +
+			((i + dead_insns) * test->line_info_rec_size);
+		if (CHECK(linfo[i].insn_off <= linfo[i - 1].insn_off,
+			  "linfo[%u].insn_off:%u <= linfo[%u].insn_off:%u",
+			  i, linfo[i].insn_off,
+			  i - 1, linfo[i - 1].insn_off)) {
+			err = -1;
+			goto done;
+		}
+		if (CHECK(linfo[i].file_name_off != expected_linfo->file_name_off ||
+			  linfo[i].line_off != expected_linfo->line_off ||
+			  linfo[i].line_col != expected_linfo->line_col,
+			  "linfo[%u] (%u, %u, %u) != (%u, %u, %u)", i,
+			  linfo[i].file_name_off,
+			  linfo[i].line_off,
+			  linfo[i].line_col,
+			  expected_linfo->file_name_off,
+			  expected_linfo->line_off,
+			  expected_linfo->line_col)) {
+			err = -1;
+			goto done;
+		}
+	}
+
+	if (!jited_cnt) {
+		fprintf(stderr, "not jited. skipping jited_line_info check. ");
+		err = 0;
+		goto done;
+	}
+
+	if (CHECK(jited_linfo[0] != jited_ksyms[0],
+		  "jited_linfo[0]:%lx != jited_ksyms[0]:%lx",
+		  (long)(jited_linfo[0]), (long)(jited_ksyms[0]))) {
+		err = -1;
+		goto done;
+	}
+
+	ksyms_found = 1;
+	cur_func_len = jited_func_lens[0];
+	cur_func_ksyms = jited_ksyms[0];
+	for (i = 1; i < jited_cnt; i++) {
+		if (ksyms_found < nr_jited_ksyms &&
+		    jited_linfo[i] == jited_ksyms[ksyms_found]) {
+			cur_func_ksyms = jited_ksyms[ksyms_found];
+			cur_func_len = jited_ksyms[ksyms_found];
+			ksyms_found++;
+			continue;
+		}
+
+		if (CHECK(jited_linfo[i] <= jited_linfo[i - 1],
+			  "jited_linfo[%u]:%lx <= jited_linfo[%u]:%lx",
+			  i, (long)jited_linfo[i],
+			  i - 1, (long)(jited_linfo[i - 1]))) {
+			err = -1;
+			goto done;
+		}
+
+		if (CHECK(jited_linfo[i] - cur_func_ksyms > cur_func_len,
+			  "jited_linfo[%u]:%lx - %lx > %u",
+			  i, (long)jited_linfo[i], (long)cur_func_ksyms,
+			  cur_func_len)) {
+			err = -1;
+			goto done;
+		}
+	}
+
+	if (CHECK(ksyms_found != nr_jited_ksyms,
+		  "ksyms_found:%u != nr_jited_ksyms:%u",
+		  ksyms_found, nr_jited_ksyms)) {
+		err = -1;
+		goto done;
+	}
+
+	err = 0;
+
+done:
+	free(linfo);
+	free(jited_linfo);
+	free(jited_ksyms);
+	free(jited_func_lens);
+	return err;
+}
+
+static void do_test_info_raw(unsigned int test_num)
+{
+	const struct prog_info_raw_test *test = &info_raw_tests[test_num - 1];
+	unsigned int raw_btf_size, linfo_str_off, linfo_size = 0;
+	int btf_fd = -1, prog_fd = -1, err = 0;
+	void *raw_btf, *patched_linfo = NULL;
+	const char *ret_next_str;
+	union bpf_attr attr = {};
+
+	if (!test__start_subtest(test->descr))
+		return;
+
+	raw_btf = btf_raw_create(&hdr_tmpl, test->raw_types,
+				 test->str_sec, test->str_sec_size,
+				 &raw_btf_size, &ret_next_str);
+	if (!raw_btf)
+		return;
+
+	*btf_log_buf = '\0';
+	btf_fd = load_raw_btf(raw_btf, raw_btf_size);
+	free(raw_btf);
+
+	if (CHECK(btf_fd < 0, "invalid btf_fd errno:%d", errno)) {
+		err = -1;
+		goto done;
+	}
+
+	if (*btf_log_buf && always_log)
+		fprintf(stderr, "\n%s", btf_log_buf);
+	*btf_log_buf = '\0';
+
+	linfo_str_off = ret_next_str - test->str_sec;
+	patched_linfo = patch_name_tbd(test->line_info,
+				       test->str_sec, linfo_str_off,
+				       test->str_sec_size, &linfo_size);
+	err = libbpf_get_error(patched_linfo);
+	if (err) {
+		fprintf(stderr, "error in creating raw bpf_line_info");
+		err = -1;
+		goto done;
+	}
+
+	attr.prog_type = test->prog_type;
+	attr.insns = ptr_to_u64(test->insns);
+	attr.insn_cnt = probe_prog_length(test->insns);
+	attr.license = ptr_to_u64("GPL");
+	attr.prog_btf_fd = btf_fd;
+	attr.func_info_rec_size = test->func_info_rec_size;
+	attr.func_info_cnt = test->func_info_cnt;
+	attr.func_info = ptr_to_u64(test->func_info);
+	attr.log_buf = ptr_to_u64(btf_log_buf);
+	attr.log_size = BTF_LOG_BUF_SIZE;
+	attr.log_level = 1;
+	if (linfo_size) {
+		attr.line_info_rec_size = test->line_info_rec_size;
+		attr.line_info = ptr_to_u64(patched_linfo);
+		attr.line_info_cnt = linfo_size / attr.line_info_rec_size;
+	}
+
+	prog_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+	err = ((prog_fd < 0) != test->expected_prog_load_failure);
+	if (CHECK(err, "prog_fd:%d expected_prog_load_failure:%u errno:%d",
+		  prog_fd, test->expected_prog_load_failure, errno) ||
+	    CHECK(test->err_str && !strstr(btf_log_buf, test->err_str),
+		  "expected err_str:%s", test->err_str)) {
+		err = -1;
+		goto done;
+	}
+
+	if (prog_fd < 0)
+		goto done;
+
+	err = test_get_finfo(test, prog_fd);
+	if (err)
+		goto done;
+
+	err = test_get_linfo(test, patched_linfo,
+			     attr.line_info_cnt - test->dead_code_cnt,
+			     prog_fd);
+	if (err)
+		goto done;
+
+done:
+	if (*btf_log_buf && (err || always_log))
+		fprintf(stderr, "\n%s", btf_log_buf);
+
+	if (btf_fd >= 0)
+		close(btf_fd);
+	if (prog_fd >= 0)
+		close(prog_fd);
+
+	if (!libbpf_get_error(patched_linfo))
+		free(patched_linfo);
+}
+
+struct btf_raw_data {
+	__u32 raw_types[MAX_NR_RAW_U32];
+	const char *str_sec;
+	__u32 str_sec_size;
+};
+
+struct btf_dedup_test {
+	const char *descr;
+	struct btf_raw_data input;
+	struct btf_raw_data expect;
+	struct btf_dedup_opts opts;
+};
+
+static struct btf_dedup_test dedup_tests[] = {
+
+{
+	.descr = "dedup: unused strings filtering",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 64, 8),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0unused\0int\0foo\0bar\0long"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0long"),
+	},
+},
+{
+	.descr = "dedup: strings deduplication",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
+			BTF_TYPE_INT_ENC(NAME_NTH(3), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_TYPE_INT_ENC(NAME_NTH(4), BTF_INT_SIGNED, 0, 64, 8),
+			BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0long int\0int\0long int\0int"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 64, 8),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0long int"),
+	},
+},
+{
+	.descr = "dedup: struct example #1",
+	/*
+	 * struct s {
+	 *	struct s *next;
+	 *	const int *a;
+	 *	int b[16];
+	 *	int c;
+	 * }
+	 */
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* int[16] */
+			BTF_TYPE_ARRAY_ENC(1, 1, 16),					/* [2] */
+			/* struct s { */
+			BTF_STRUCT_ENC(NAME_NTH(2), 5, 88),				/* [3] */
+				BTF_MEMBER_ENC(NAME_NTH(3), 4, 0),	/* struct s *next;	*/
+				BTF_MEMBER_ENC(NAME_NTH(4), 5, 64),	/* const int *a;	*/
+				BTF_MEMBER_ENC(NAME_NTH(5), 2, 128),	/* int b[16];		*/
+				BTF_MEMBER_ENC(NAME_NTH(6), 1, 640),	/* int c;		*/
+				BTF_MEMBER_ENC(NAME_NTH(8), 15, 672),	/* float d;		*/
+			/* ptr -> [3] struct s */
+			BTF_PTR_ENC(3),							/* [4] */
+			/* ptr -> [6] const int */
+			BTF_PTR_ENC(6),							/* [5] */
+			/* const -> [1] int */
+			BTF_CONST_ENC(1),						/* [6] */
+			/* tag -> [3] struct s */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1),				/* [7] */
+			/* tag -> [3] struct s, member 1 */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1),				/* [8] */
+
+			/* full copy of the above */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),	/* [9] */
+			BTF_TYPE_ARRAY_ENC(9, 9, 16),					/* [10] */
+			BTF_STRUCT_ENC(NAME_NTH(2), 5, 88),				/* [11] */
+				BTF_MEMBER_ENC(NAME_NTH(3), 12, 0),
+				BTF_MEMBER_ENC(NAME_NTH(4), 13, 64),
+				BTF_MEMBER_ENC(NAME_NTH(5), 10, 128),
+				BTF_MEMBER_ENC(NAME_NTH(6), 9, 640),
+				BTF_MEMBER_ENC(NAME_NTH(8), 15, 672),
+			BTF_PTR_ENC(11),						/* [12] */
+			BTF_PTR_ENC(14),						/* [13] */
+			BTF_CONST_ENC(9),						/* [14] */
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4),				/* [15] */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 11, -1),				/* [16] */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 11, 1),				/* [17] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0s\0next\0a\0b\0c\0float\0d"),
+	},
+	.expect = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(NAME_NTH(5), BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* int[16] */
+			BTF_TYPE_ARRAY_ENC(1, 1, 16),					/* [2] */
+			/* struct s { */
+			BTF_STRUCT_ENC(NAME_NTH(8), 5, 88),				/* [3] */
+				BTF_MEMBER_ENC(NAME_NTH(7), 4, 0),	/* struct s *next;	*/
+				BTF_MEMBER_ENC(NAME_NTH(1), 5, 64),	/* const int *a;	*/
+				BTF_MEMBER_ENC(NAME_NTH(2), 2, 128),	/* int b[16];		*/
+				BTF_MEMBER_ENC(NAME_NTH(3), 1, 640),	/* int c;		*/
+				BTF_MEMBER_ENC(NAME_NTH(4), 9, 672),	/* float d;		*/
+			/* ptr -> [3] struct s */
+			BTF_PTR_ENC(3),							/* [4] */
+			/* ptr -> [6] const int */
+			BTF_PTR_ENC(6),							/* [5] */
+			/* const -> [1] int */
+			BTF_CONST_ENC(1),						/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1),				/* [7] */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 3, 1),				/* [8] */
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(7), 4),				/* [9] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0a\0b\0c\0d\0int\0float\0next\0s"),
+	},
+},
+{
+	.descr = "dedup: struct <-> fwd resolution w/ hash collision",
+	/*
+	 * // CU 1:
+	 * struct x;
+	 * struct s {
+	 *	struct x *x;
+	 * };
+	 * // CU 2:
+	 * struct x {};
+	 * struct s {
+	 *	struct x *x;
+	 * };
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_FWD_ENC(NAME_TBD, 0 /* struct fwd */),	/* [1] fwd x      */
+			BTF_PTR_ENC(1),					/* [2] ptr -> [1] */
+			BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [3] struct s   */
+				BTF_MEMBER_ENC(NAME_TBD, 2, 0),
+			/* CU 2 */
+			BTF_STRUCT_ENC(NAME_TBD, 0, 0),			/* [4] struct x   */
+			BTF_PTR_ENC(4),					/* [5] ptr -> [4] */
+			BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [6] struct s   */
+				BTF_MEMBER_ENC(NAME_TBD, 5, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0x\0s\0x\0x\0s\0x\0"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_PTR_ENC(3),					/* [1] ptr -> [3] */
+			BTF_STRUCT_ENC(NAME_TBD, 1, 8),			/* [2] struct s   */
+				BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+			BTF_STRUCT_ENC(NAME_NTH(2), 0, 0),		/* [3] struct x   */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0s\0x"),
+	},
+	.opts = {
+		.force_collisions = true, /* force hash collisions */
+	},
+},
+{
+	.descr = "dedup: void equiv check",
+	/*
+	 * // CU 1:
+	 * struct s {
+	 *	struct {} *x;
+	 * };
+	 * // CU 2:
+	 * struct s {
+	 *	int *x;
+	 * };
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(0, 0, 1),				/* [1] struct {}  */
+			BTF_PTR_ENC(1),						/* [2] ptr -> [1] */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 8),			/* [3] struct s   */
+				BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			/* CU 2 */
+			BTF_PTR_ENC(0),						/* [4] ptr -> void */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 8),			/* [5] struct s   */
+				BTF_MEMBER_ENC(NAME_NTH(2), 4, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0s\0x"),
+	},
+	.expect = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(0, 0, 1),				/* [1] struct {}  */
+			BTF_PTR_ENC(1),						/* [2] ptr -> [1] */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 8),			/* [3] struct s   */
+				BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			/* CU 2 */
+			BTF_PTR_ENC(0),						/* [4] ptr -> void */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 8),			/* [5] struct s   */
+				BTF_MEMBER_ENC(NAME_NTH(2), 4, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0s\0x"),
+	},
+	.opts = {
+		.force_collisions = true, /* force hash collisions */
+	},
+},
+{
+	.descr = "dedup: all possible kinds (no duplicates)",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8),		/* [1] int */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4),	/* [2] enum */
+				BTF_ENUM_ENC(NAME_TBD, 0),
+				BTF_ENUM_ENC(NAME_TBD, 1),
+			BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */),			/* [3] fwd */
+			BTF_TYPE_ARRAY_ENC(2, 1, 7),					/* [4] array */
+			BTF_STRUCT_ENC(NAME_TBD, 1, 4),					/* [5] struct */
+				BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+			BTF_UNION_ENC(NAME_TBD, 1, 4),					/* [6] union */
+				BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+			BTF_TYPEDEF_ENC(NAME_TBD, 1),					/* [7] typedef */
+			BTF_PTR_ENC(0),							/* [8] ptr */
+			BTF_CONST_ENC(8),						/* [9] const */
+			BTF_VOLATILE_ENC(8),						/* [10] volatile */
+			BTF_RESTRICT_ENC(8),						/* [11] restrict */
+			BTF_FUNC_PROTO_ENC(1, 2),					/* [12] func_proto */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18),
+			BTF_FUNC_ENC(NAME_TBD, 12),					/* [13] func */
+			BTF_TYPE_FLOAT_ENC(NAME_TBD, 2),				/* [14] float */
+			BTF_DECL_TAG_ENC(NAME_TBD, 13, -1),				/* [15] decl_tag */
+			BTF_DECL_TAG_ENC(NAME_TBD, 13, 1),				/* [16] decl_tag */
+			BTF_DECL_TAG_ENC(NAME_TBD, 7, -1),				/* [17] decl_tag */
+			BTF_TYPE_TAG_ENC(NAME_TBD, 8),					/* [18] type_tag */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [19] enum64 */
+				BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+				BTF_ENUM64_ENC(NAME_TBD, 1, 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_TBD, BTF_INT_SIGNED, 0, 32, 8),		/* [1] int */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM, 0, 2), 4),	/* [2] enum */
+				BTF_ENUM_ENC(NAME_TBD, 0),
+				BTF_ENUM_ENC(NAME_TBD, 1),
+			BTF_FWD_ENC(NAME_TBD, 1 /* union kind_flag */),			/* [3] fwd */
+			BTF_TYPE_ARRAY_ENC(2, 1, 7),					/* [4] array */
+			BTF_STRUCT_ENC(NAME_TBD, 1, 4),					/* [5] struct */
+				BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+			BTF_UNION_ENC(NAME_TBD, 1, 4),					/* [6] union */
+				BTF_MEMBER_ENC(NAME_TBD, 1, 0),
+			BTF_TYPEDEF_ENC(NAME_TBD, 1),					/* [7] typedef */
+			BTF_PTR_ENC(0),							/* [8] ptr */
+			BTF_CONST_ENC(8),						/* [9] const */
+			BTF_VOLATILE_ENC(8),						/* [10] volatile */
+			BTF_RESTRICT_ENC(8),						/* [11] restrict */
+			BTF_FUNC_PROTO_ENC(1, 2),					/* [12] func_proto */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_TBD, 18),
+			BTF_FUNC_ENC(NAME_TBD, 12),					/* [13] func */
+			BTF_TYPE_FLOAT_ENC(NAME_TBD, 2),				/* [14] float */
+			BTF_DECL_TAG_ENC(NAME_TBD, 13, -1),				/* [15] decl_tag */
+			BTF_DECL_TAG_ENC(NAME_TBD, 13, 1),				/* [16] decl_tag */
+			BTF_DECL_TAG_ENC(NAME_TBD, 7, -1),				/* [17] decl_tag */
+			BTF_TYPE_TAG_ENC(NAME_TBD, 8),					/* [18] type_tag */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [19] enum64 */
+				BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+				BTF_ENUM64_ENC(NAME_TBD, 1, 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
+	},
+},
+{
+	.descr = "dedup: no int/float duplicates",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8),
+			/* different name */
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8),
+			/* different encoding */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8),
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8),
+			/* different bit offset */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8),
+			/* different bit size */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8),
+			/* different byte size */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
+			/* all allowed sizes */
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0some other int\0float"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 8),
+			/* different name */
+			BTF_TYPE_INT_ENC(NAME_NTH(2), BTF_INT_SIGNED, 0, 32, 8),
+			/* different encoding */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_CHAR, 0, 32, 8),
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_BOOL, 0, 32, 8),
+			/* different bit offset */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 8, 32, 8),
+			/* different bit size */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 27, 8),
+			/* different byte size */
+			BTF_TYPE_INT_ENC(NAME_NTH(1), BTF_INT_SIGNED, 0, 32, 4),
+			/* all allowed sizes */
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 2),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 4),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 8),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 12),
+			BTF_TYPE_FLOAT_ENC(NAME_NTH(3), 16),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0int\0some other int\0float"),
+	},
+},
+{
+	.descr = "dedup: enum fwd resolution",
+	.input = {
+		.raw_types = {
+			/* [1] fwd enum 'e1' before full enum */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
+			/* [2] full enum 'e1' after fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 123),
+			/* [3] full enum 'e2' before fwd */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(4), 456),
+			/* [4] fwd enum 'e2' after full enum */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
+			/* [5] fwd enum with different size, size does not matter for fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 1),
+			/* [6] incompatible full enum with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] full enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 123),
+			/* [2] full enum 'e2' */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(4), 456),
+			/* [3] incompatible full enum with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+},
+{
+	.descr = "dedup: datasec and vars pass-through",
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* static int t */
+			BTF_VAR_ENC(NAME_NTH(2), 1, 0),			/* [2] */
+			/* .bss section */				/* [3] */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+			BTF_VAR_SECINFO_ENC(2, 0, 4),
+			/* int, referenced from [5] */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [4] */
+			/* another static int t */
+			BTF_VAR_ENC(NAME_NTH(2), 4, 0),			/* [5] */
+			/* another .bss section */			/* [6] */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+			BTF_VAR_SECINFO_ENC(5, 0, 4),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0.bss\0t"),
+	},
+	.expect = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* static int t */
+			BTF_VAR_ENC(NAME_NTH(2), 1, 0),			/* [2] */
+			/* .bss section */				/* [3] */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+			BTF_VAR_SECINFO_ENC(2, 0, 4),
+			/* another static int t */
+			BTF_VAR_ENC(NAME_NTH(2), 1, 0),			/* [4] */
+			/* another .bss section */			/* [5] */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_DATASEC, 0, 1), 4),
+			BTF_VAR_SECINFO_ENC(4, 0, 4),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0.bss\0t"),
+	},
+	.opts = {
+		.force_collisions = true
+	},
+},
+{
+	.descr = "dedup: func/func_arg/var tags",
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* static int t */
+			BTF_VAR_ENC(NAME_NTH(1), 1, 0),			/* [2] */
+			/* void f(int a1, int a2) */
+			BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
+			BTF_FUNC_ENC(NAME_NTH(4), 3),			/* [4] */
+			/* tag -> t */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1),		/* [5] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1),		/* [6] */
+			/* tag -> func */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1),		/* [7] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1),		/* [8] */
+			/* tag -> func arg a1 */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1),		/* [9] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1),		/* [10] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_VAR_ENC(NAME_NTH(1), 1, 0),			/* [2] */
+			BTF_FUNC_PROTO_ENC(0, 2),			/* [3] */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(3), 1),
+			BTF_FUNC_ENC(NAME_NTH(4), 3),			/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1),		/* [5] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, -1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 4, 1),		/* [7] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0a1\0a2\0f\0tag"),
+	},
+},
+{
+	.descr = "dedup: func/func_param tags",
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			/* void f(int a1, int a2) */
+			BTF_FUNC_PROTO_ENC(0, 2),			/* [2] */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+			BTF_FUNC_ENC(NAME_NTH(3), 2),			/* [3] */
+			/* void f(int a1, int a2) */
+			BTF_FUNC_PROTO_ENC(0, 2),			/* [4] */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+			BTF_FUNC_ENC(NAME_NTH(3), 4),			/* [5] */
+			/* tag -> f: tag1, tag2 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1),		/* [7] */
+			/* tag -> f/a2: tag1, tag2 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1),		/* [8] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1),		/* [9] */
+			/* tag -> f: tag1, tag3 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 5, -1),		/* [10] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 5, -1),		/* [11] */
+			/* tag -> f/a2: tag1, tag3 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 5, 1),		/* [12] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 5, 1),		/* [13] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_FUNC_PROTO_ENC(0, 2),			/* [2] */
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(1), 1),
+				BTF_FUNC_PROTO_ARG_ENC(NAME_NTH(2), 1),
+			BTF_FUNC_ENC(NAME_NTH(3), 2),			/* [3] */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1),		/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 3, -1),		/* [5] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1),		/* [7] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 3, 1),		/* [8] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1),		/* [9] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0a1\0a2\0f\0tag1\0tag2\0tag3"),
+	},
+},
+{
+	.descr = "dedup: struct/struct_member tags",
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_STRUCT_ENC(NAME_NTH(1), 2, 8),		/* [2] */
+				BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+				BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+			BTF_STRUCT_ENC(NAME_NTH(1), 2, 8),		/* [3] */
+				BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+				BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+			/* tag -> t: tag1, tag2 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1),		/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1),		/* [5] */
+			/* tag -> t/m2: tag1, tag2 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1),		/* [7] */
+			/* tag -> t: tag1, tag3 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1),		/* [8] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 3, -1),		/* [9] */
+			/* tag -> t/m2: tag1, tag3 */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, 1),		/* [10] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 3, 1),		/* [11] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_STRUCT_ENC(NAME_NTH(1), 2, 8),		/* [2] */
+				BTF_MEMBER_ENC(NAME_NTH(2), 1, 0),
+				BTF_MEMBER_ENC(NAME_NTH(3), 1, 32),
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1),		/* [3] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, -1),		/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 2, -1),		/* [5] */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 2, 1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(5), 2, 1),		/* [7] */
+			BTF_DECL_TAG_ENC(NAME_NTH(6), 2, 1),		/* [8] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0m1\0m2\0tag1\0tag2\0tag3"),
+	},
+},
+{
+	.descr = "dedup: recursive typedef",
+	/*
+	 * This test simulates a recursive typedef, which in GO is defined as such:
+	 *
+	 *   type Foo func() Foo
+	 *
+	 * In BTF terms, this is represented as a TYPEDEF referencing
+	 * a FUNC_PROTO that returns the same TYPEDEF.
+	 */
+	.input = {
+		.raw_types = {
+			/*
+			 * [1] typedef Foo -> func() Foo
+			 * [2] func_proto() -> Foo
+			 * [3] typedef Foo -> func() Foo
+			 * [4] func_proto() -> Foo
+			 */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 2),	/* [1] */
+			BTF_FUNC_PROTO_ENC(1, 0),		/* [2] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 4),	/* [3] */
+			BTF_FUNC_PROTO_ENC(3, 0),		/* [4] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0Foo"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 2),	/* [1] */
+			BTF_FUNC_PROTO_ENC(1, 0),		/* [2] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0Foo"),
+	},
+},
+{
+	.descr = "dedup: typedef",
+    /*
+     * // CU 1:
+     * typedef int foo;
+     *
+     * // CU 2:
+     * typedef int foo;
+     */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 1),		/* [2] */
+			/* CU 2 */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [3] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 3),		/* [4] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo"),
+	},
+},
+{
+	.descr = "dedup: typedef tags",
+	.input = {
+		.raw_types = {
+			/* int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 1),		/* [3] */
+			/* tag -> t: tag1, tag2 */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1),		/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1),		/* [5] */
+			/* tag -> t: tag1, tag3 */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 3, -1),		/* [6] */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 3, -1),		/* [7] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPEDEF_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_DECL_TAG_ENC(NAME_NTH(2), 2, -1),		/* [3] */
+			BTF_DECL_TAG_ENC(NAME_NTH(3), 2, -1),		/* [4] */
+			BTF_DECL_TAG_ENC(NAME_NTH(4), 2, -1),		/* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0t\0tag1\0tag2\0tag3"),
+	},
+},
+{
+	.descr = "dedup: btf_type_tag #1",
+	.input = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [5] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 5),		/* [6] */
+			BTF_PTR_ENC(6),					/* [7] */
+			/* ptr -> tag1 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [8] */
+			BTF_PTR_ENC(8),					/* [9] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+	.expect = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag1 -> int */
+			BTF_PTR_ENC(2),					/* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+},
+{
+	.descr = "dedup: btf_type_tag #2",
+	.input = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag2 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 1),		/* [5] */
+			BTF_PTR_ENC(5),					/* [6] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+	.expect = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag2 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 1),		/* [5] */
+			BTF_PTR_ENC(5),					/* [6] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+},
+{
+	.descr = "dedup: btf_type_tag #3",
+	.input = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag1 -> tag2 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 1),		/* [5] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 5),		/* [6] */
+			BTF_PTR_ENC(6),					/* [7] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+	.expect = {
+		.raw_types = {
+			/* ptr -> tag2 -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 2),		/* [3] */
+			BTF_PTR_ENC(3),					/* [4] */
+			/* ptr -> tag1 -> tag2 -> int */
+			BTF_TYPE_TAG_ENC(NAME_NTH(2), 1),		/* [5] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 5),		/* [6] */
+			BTF_PTR_ENC(6),					/* [7] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0tag2"),
+	},
+},
+{
+	.descr = "dedup: btf_type_tag #4",
+	.input = {
+		.raw_types = {
+			/* ptr -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_PTR_ENC(2),					/* [3] */
+			/* ptr -> tag1 -> long */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),	/* [4] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 4),		/* [5] */
+			BTF_PTR_ENC(5),					/* [6] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1"),
+	},
+	.expect = {
+		.raw_types = {
+			/* ptr -> tag1 -> int */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),	/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),		/* [2] */
+			BTF_PTR_ENC(2),					/* [3] */
+			/* ptr -> tag1 -> long */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),	/* [4] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 4),		/* [5] */
+			BTF_PTR_ENC(5),					/* [6] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1"),
+	},
+},
+{
+	.descr = "dedup: btf_type_tag #5, struct",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),				/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),					/* [2] */
+			BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4),	/* [3] */
+			BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)),
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),					/* [4] */
+			BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4),	/* [5] */
+			BTF_MEMBER_ENC(NAME_NTH(3), 4, BTF_MEMBER_OFFSET(0, 0)),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0t\0m"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),				/* [1] */
+			BTF_TYPE_TAG_ENC(NAME_NTH(1), 1),					/* [2] */
+			BTF_TYPE_ENC(NAME_NTH(2), BTF_INFO_ENC(BTF_KIND_STRUCT, 1, 1), 4),	/* [3] */
+			BTF_MEMBER_ENC(NAME_NTH(3), 2, BTF_MEMBER_OFFSET(0, 0)),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0tag1\0t\0m"),
+	},
+},
+{
+	.descr = "dedup: enum64, standalone",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+},
+{
+	.descr = "dedup: enum64, fwd resolution",
+	.input = {
+		.raw_types = {
+			/* [1] fwd enum64 'e1' before full enum */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
+			/* [2] full enum64 'e1' after fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			/* [3] full enum64 'e2' before fwd */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
+			/* [4] fwd enum64 'e2' after full enum */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
+			/* [5] incompatible full enum64 with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] full enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			/* [2] full enum64 'e2' */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
+			/* [3] incompatible full enum64 with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+},
+{
+	.descr = "dedup: enum and enum64, no dedup",
+	.input = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+},
+{
+	.descr = "dedup: enum of different size: no dedup",
+	.input = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 2),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+},
+{
+	.descr = "dedup: enum fwd to enum64",
+	.input = {
+		.raw_types = {
+			/* [1] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			/* [2] enum 'e1' fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 0), 4),
+			/* [3] typedef enum 'e1' td */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0td"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			/* [2] typedef enum 'e1' td */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0td"),
+	},
+},
+{
+	.descr = "dedup: enum64 fwd to enum",
+	.input = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum64 'e1' fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
+			/* [3] typedef enum 'e1' td */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 2),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0td"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] typedef enum 'e1' td */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), 1),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0td"),
+	},
+},
+{
+	.descr = "dedup: standalone fwd declaration struct",
+	/*
+	 * Verify that CU1:foo and CU2:foo would be unified and that
+	 * typedef/ptr would be updated to point to CU1:foo.
+	 *
+	 * // CU 1:
+	 * struct foo { int x; };
+	 *
+	 * // CU 2:
+	 * struct foo;
+	 * typedef struct foo *foo_ptr;
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_NTH(1), 0),                   /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 4),               /* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			BTF_PTR_ENC(1),                                /* [3] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 3),               /* [4] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+},
+{
+	.descr = "dedup: standalone fwd declaration union",
+	/*
+	 * Verify that CU1:foo and CU2:foo would be unified and that
+	 * typedef/ptr would be updated to point to CU1:foo.
+	 * Same as "dedup: standalone fwd declaration struct" but for unions.
+	 *
+	 * // CU 1:
+	 * union foo { int x; };
+	 *
+	 * // CU 2:
+	 * union foo;
+	 * typedef union foo *foo_ptr;
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_UNION_ENC(NAME_NTH(1), 1, 4),              /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_TBD, 1),                      /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 4),               /* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_UNION_ENC(NAME_NTH(1), 1, 4),              /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			BTF_PTR_ENC(1),                                /* [3] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 3),               /* [4] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+},
+{
+	.descr = "dedup: standalone fwd declaration wrong kind",
+	/*
+	 * Negative test for btf_dedup_resolve_fwds:
+	 * - CU1:foo is a struct, C2:foo is a union, thus CU2:foo is not deduped;
+	 * - typedef/ptr should remain unchanged as well.
+	 *
+	 * // CU 1:
+	 * struct foo { int x; };
+	 *
+	 * // CU 2:
+	 * union foo;
+	 * typedef union foo *foo_ptr;
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_NTH(3), 1),                   /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 4),               /* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+	.expect = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_NTH(3), 1),                   /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(3), 4),               /* [5] */
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0foo_ptr"),
+	},
+},
+{
+	.descr = "dedup: standalone fwd declaration name conflict",
+	/*
+	 * Negative test for btf_dedup_resolve_fwds:
+	 * - two candidates for CU2:foo dedup, thus it is unchanged;
+	 * - typedef/ptr should remain unchanged as well.
+	 *
+	 * // CU 1:
+	 * struct foo { int x; };
+	 *
+	 * // CU 2:
+	 * struct foo;
+	 * typedef struct foo *foo_ptr;
+	 *
+	 * // CU 3:
+	 * struct foo { int x; int y; };
+	 */
+	.input = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_NTH(1), 0),                   /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(4), 4),               /* [5] */
+			/* CU 3 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 2, 8),             /* [6] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_MEMBER_ENC(NAME_NTH(3), 2, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"),
+	},
+	.expect = {
+		.raw_types = {
+			/* CU 1 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 1, 4),             /* [1] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4), /* [2] */
+			/* CU 2 */
+			BTF_FWD_ENC(NAME_NTH(1), 0),                   /* [3] */
+			BTF_PTR_ENC(3),                                /* [4] */
+			BTF_TYPEDEF_ENC(NAME_NTH(4), 4),               /* [5] */
+			/* CU 3 */
+			BTF_STRUCT_ENC(NAME_NTH(1), 2, 8),             /* [6] */
+			BTF_MEMBER_ENC(NAME_NTH(2), 2, 0),
+			BTF_MEMBER_ENC(NAME_NTH(3), 2, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0foo\0x\0y\0foo_ptr"),
+	},
+},
+};
+
+static int btf_type_size(const struct btf_type *t)
+{
+	int base_size = sizeof(struct btf_type);
+	__u16 vlen = BTF_INFO_VLEN(t->info);
+	__u16 kind = BTF_INFO_KIND(t->info);
+
+	switch (kind) {
+	case BTF_KIND_FWD:
+	case BTF_KIND_CONST:
+	case BTF_KIND_VOLATILE:
+	case BTF_KIND_RESTRICT:
+	case BTF_KIND_PTR:
+	case BTF_KIND_TYPEDEF:
+	case BTF_KIND_FUNC:
+	case BTF_KIND_FLOAT:
+	case BTF_KIND_TYPE_TAG:
+		return base_size;
+	case BTF_KIND_INT:
+		return base_size + sizeof(__u32);
+	case BTF_KIND_ENUM:
+		return base_size + vlen * sizeof(struct btf_enum);
+	case BTF_KIND_ENUM64:
+		return base_size + vlen * sizeof(struct btf_enum64);
+	case BTF_KIND_ARRAY:
+		return base_size + sizeof(struct btf_array);
+	case BTF_KIND_STRUCT:
+	case BTF_KIND_UNION:
+		return base_size + vlen * sizeof(struct btf_member);
+	case BTF_KIND_FUNC_PROTO:
+		return base_size + vlen * sizeof(struct btf_param);
+	case BTF_KIND_VAR:
+		return base_size + sizeof(struct btf_var);
+	case BTF_KIND_DATASEC:
+		return base_size + vlen * sizeof(struct btf_var_secinfo);
+	case BTF_KIND_DECL_TAG:
+		return base_size + sizeof(struct btf_decl_tag);
+	default:
+		fprintf(stderr, "Unsupported BTF_KIND:%u\n", kind);
+		return -EINVAL;
+	}
+}
+
+static void dump_btf_strings(const char *strs, __u32 len)
+{
+	const char *cur = strs;
+	int i = 0;
+
+	while (cur < strs + len) {
+		fprintf(stderr, "string #%d: '%s'\n", i, cur);
+		cur += strlen(cur) + 1;
+		i++;
+	}
+}
+
+static void do_test_dedup(unsigned int test_num)
+{
+	struct btf_dedup_test *test = &dedup_tests[test_num - 1];
+	__u32 test_nr_types, expect_nr_types, test_btf_size, expect_btf_size;
+	const struct btf_header *test_hdr, *expect_hdr;
+	struct btf *test_btf = NULL, *expect_btf = NULL;
+	const void *test_btf_data, *expect_btf_data;
+	const char *ret_test_next_str, *ret_expect_next_str;
+	const char *test_strs, *expect_strs;
+	const char *test_str_cur;
+	const char *expect_str_cur, *expect_str_end;
+	unsigned int raw_btf_size;
+	void *raw_btf;
+	int err = 0, i;
+
+	if (!test__start_subtest(test->descr))
+		return;
+
+	raw_btf = btf_raw_create(&hdr_tmpl, test->input.raw_types,
+				 test->input.str_sec, test->input.str_sec_size,
+				 &raw_btf_size, &ret_test_next_str);
+	if (!raw_btf)
+		return;
+
+	test_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
+	err = libbpf_get_error(test_btf);
+	free(raw_btf);
+	if (CHECK(err, "invalid test_btf errno:%d", err)) {
+		err = -1;
+		goto done;
+	}
+
+	raw_btf = btf_raw_create(&hdr_tmpl, test->expect.raw_types,
+				 test->expect.str_sec,
+				 test->expect.str_sec_size,
+				 &raw_btf_size, &ret_expect_next_str);
+	if (!raw_btf)
+		return;
+	expect_btf = btf__new((__u8 *)raw_btf, raw_btf_size);
+	err = libbpf_get_error(expect_btf);
+	free(raw_btf);
+	if (CHECK(err, "invalid expect_btf errno:%d", err)) {
+		err = -1;
+		goto done;
+	}
+
+	test->opts.sz = sizeof(test->opts);
+	err = btf__dedup(test_btf, &test->opts);
+	if (CHECK(err, "btf_dedup failed errno:%d", err)) {
+		err = -1;
+		goto done;
+	}
+
+	test_btf_data = btf__raw_data(test_btf, &test_btf_size);
+	expect_btf_data = btf__raw_data(expect_btf, &expect_btf_size);
+	if (CHECK(test_btf_size != expect_btf_size,
+		  "test_btf_size:%u != expect_btf_size:%u",
+		  test_btf_size, expect_btf_size)) {
+		err = -1;
+		goto done;
+	}
+
+	test_hdr = test_btf_data;
+	test_strs = test_btf_data + sizeof(*test_hdr) + test_hdr->str_off;
+	expect_hdr = expect_btf_data;
+	expect_strs = expect_btf_data + sizeof(*test_hdr) + expect_hdr->str_off;
+	if (CHECK(test_hdr->str_len != expect_hdr->str_len,
+		  "test_hdr->str_len:%u != expect_hdr->str_len:%u",
+		  test_hdr->str_len, expect_hdr->str_len)) {
+		fprintf(stderr, "\ntest strings:\n");
+		dump_btf_strings(test_strs, test_hdr->str_len);
+		fprintf(stderr, "\nexpected strings:\n");
+		dump_btf_strings(expect_strs, expect_hdr->str_len);
+		err = -1;
+		goto done;
+	}
+
+	expect_str_cur = expect_strs;
+	expect_str_end = expect_strs + expect_hdr->str_len;
+	while (expect_str_cur < expect_str_end) {
+		size_t test_len, expect_len;
+		int off;
+
+		off = btf__find_str(test_btf, expect_str_cur);
+		if (CHECK(off < 0, "exp str '%s' not found: %d\n", expect_str_cur, off)) {
+			err = -1;
+			goto done;
+		}
+		test_str_cur = btf__str_by_offset(test_btf, off);
+
+		test_len = strlen(test_str_cur);
+		expect_len = strlen(expect_str_cur);
+		if (CHECK(test_len != expect_len,
+			  "test_len:%zu != expect_len:%zu "
+			  "(test_str:%s, expect_str:%s)",
+			  test_len, expect_len, test_str_cur, expect_str_cur)) {
+			err = -1;
+			goto done;
+		}
+		if (CHECK(strcmp(test_str_cur, expect_str_cur),
+			  "test_str:%s != expect_str:%s",
+			  test_str_cur, expect_str_cur)) {
+			err = -1;
+			goto done;
+		}
+		expect_str_cur += expect_len + 1;
+	}
+
+	test_nr_types = btf__type_cnt(test_btf);
+	expect_nr_types = btf__type_cnt(expect_btf);
+	if (CHECK(test_nr_types != expect_nr_types,
+		  "test_nr_types:%u != expect_nr_types:%u",
+		  test_nr_types, expect_nr_types)) {
+		err = -1;
+		goto done;
+	}
+
+	for (i = 1; i < test_nr_types; i++) {
+		const struct btf_type *test_type, *expect_type;
+		int test_size, expect_size;
+
+		test_type = btf__type_by_id(test_btf, i);
+		expect_type = btf__type_by_id(expect_btf, i);
+		test_size = btf_type_size(test_type);
+		expect_size = btf_type_size(expect_type);
+
+		if (CHECK(test_size != expect_size,
+			  "type #%d: test_size:%d != expect_size:%u",
+			  i, test_size, expect_size)) {
+			err = -1;
+			goto done;
+		}
+		if (CHECK(btf_kind(test_type) != btf_kind(expect_type),
+			  "type %d kind: exp %d != got %u\n",
+			  i, btf_kind(expect_type), btf_kind(test_type))) {
+			err = -1;
+			goto done;
+		}
+		if (CHECK(test_type->info != expect_type->info,
+			  "type %d info: exp %d != got %u\n",
+			  i, expect_type->info, test_type->info)) {
+			err = -1;
+			goto done;
+		}
+		if (CHECK(test_type->size != expect_type->size,
+			  "type %d size/type: exp %d != got %u\n",
+			  i, expect_type->size, test_type->size)) {
+			err = -1;
+			goto done;
+		}
+	}
+
+done:
+	btf__free(test_btf);
+	btf__free(expect_btf);
+}
+
+void test_btf(void)
+{
+	int i;
+
+	always_log = env.verbosity > VERBOSE_NONE;
+
+	for (i = 1; i <= ARRAY_SIZE(raw_tests); i++)
+		do_test_raw(i);
+	for (i = 1; i <= ARRAY_SIZE(get_info_tests); i++)
+		do_test_get_info(i);
+	for (i = 1; i <= ARRAY_SIZE(file_tests); i++)
+		do_test_file(i);
+	for (i = 1; i <= ARRAY_SIZE(info_raw_tests); i++)
+		do_test_info_raw(i);
+	for (i = 1; i <= ARRAY_SIZE(dedup_tests); i++)
+		do_test_dedup(i);
+	test_pprint();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c b/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c
new file mode 100644
index 000000000000..5bc15bb6b7ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_dedup_split.c
@@ -0,0 +1,554 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "btf_helpers.h"
+
+static void test_split_simple() {
+	const struct btf_type *t;
+	struct btf *btf1, *btf2;
+	int str_off, err;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__set_pointer_size(btf1, 8); /* enforce 64-bit arch */
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_ptr(btf1, 1);				/* [2] ptr to int */
+	btf__add_struct(btf1, "s1", 4);			/* [3] struct s1 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*      int f1; */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0");
+
+	ASSERT_STREQ(btf_type_c_dump(btf1), "\
+struct s1 {\n\
+	int f1;\n\
+};\n\n", "c_dump");
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	/* pointer size should be "inherited" from main BTF */
+	ASSERT_EQ(btf__pointer_size(btf2), 8, "inherit_ptr_sz");
+
+	str_off = btf__find_str(btf2, "int");
+	ASSERT_NEQ(str_off, -ENOENT, "str_int_missing");
+
+	t = btf__type_by_id(btf2, 1);
+	if (!ASSERT_OK_PTR(t, "int_type"))
+		goto cleanup;
+	ASSERT_EQ(btf_is_int(t), true, "int_kind");
+	ASSERT_STREQ(btf__str_by_offset(btf2, t->name_off), "int", "int_name");
+
+	btf__add_struct(btf2, "s2", 16);		/* [4] struct s2 {	*/
+	btf__add_field(btf2, "f1", 6, 0, 0);		/*      struct s1 f1;	*/
+	btf__add_field(btf2, "f2", 5, 32, 0);		/*      int f2;		*/
+	btf__add_field(btf2, "f3", 2, 64, 0);		/*      int *f3;	*/
+							/* } */
+
+	/* duplicated int */
+	btf__add_int(btf2, "int", 4, BTF_INT_SIGNED);	/* [5] int */
+
+	/* duplicated struct s1 */
+	btf__add_struct(btf2, "s1", 4);			/* [6] struct s1 { */
+	btf__add_field(btf2, "f1", 5, 0, 0);		/*      int f1; */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[4] STRUCT 's2' size=16 vlen=3\n"
+		"\t'f1' type_id=6 bits_offset=0\n"
+		"\t'f2' type_id=5 bits_offset=32\n"
+		"\t'f3' type_id=2 bits_offset=64",
+		"[5] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[6] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=5 bits_offset=0");
+
+	ASSERT_STREQ(btf_type_c_dump(btf2), "\
+struct s1 {\n\
+	int f1;\n\
+};\n\
+\n\
+struct s1___2 {\n\
+	int f1;\n\
+};\n\
+\n\
+struct s2 {\n\
+	struct s1___2 f1;\n\
+	int f2;\n\
+	int *f3;\n\
+};\n\n", "c_dump");
+
+	err = btf__dedup(btf2, NULL);
+	if (!ASSERT_OK(err, "btf_dedup"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[4] STRUCT 's2' size=16 vlen=3\n"
+		"\t'f1' type_id=3 bits_offset=0\n"
+		"\t'f2' type_id=1 bits_offset=32\n"
+		"\t'f3' type_id=2 bits_offset=64");
+
+	ASSERT_STREQ(btf_type_c_dump(btf2), "\
+struct s1 {\n\
+	int f1;\n\
+};\n\
+\n\
+struct s2 {\n\
+	struct s1 f1;\n\
+	int f2;\n\
+	int *f3;\n\
+};\n\n", "c_dump");
+
+cleanup:
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+static void test_split_fwd_resolve() {
+	struct btf *btf1, *btf2;
+	int err;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__set_pointer_size(btf1, 8); /* enforce 64-bit arch */
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_ptr(btf1, 4);				/* [2] ptr to struct s1 */
+	btf__add_ptr(btf1, 5);				/* [3] ptr to struct s2 */
+	btf__add_struct(btf1, "s1", 16);		/* [4] struct s1 { */
+	btf__add_field(btf1, "f1", 2, 0, 0);		/*      struct s1 *f1; */
+	btf__add_field(btf1, "f2", 3, 64, 0);		/*      struct s2 *f2; */
+							/* } */
+	btf__add_struct(btf1, "s2", 4);			/* [5] struct s2 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*      int f1; */
+							/* } */
+	/* keep this not a part of type the graph to test btf_dedup_resolve_fwds */
+	btf__add_struct(btf1, "s3", 4);                 /* [6] struct s3 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*      int f1; */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=4",
+		"[3] PTR '(anon)' type_id=5",
+		"[4] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=64",
+		"[5] STRUCT 's2' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[6] STRUCT 's3' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0");
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	btf__add_int(btf2, "int", 4, BTF_INT_SIGNED);	/* [7] int */
+	btf__add_ptr(btf2, 11);				/* [8] ptr to struct s1 */
+	btf__add_fwd(btf2, "s2", BTF_FWD_STRUCT);	/* [9] fwd for struct s2 */
+	btf__add_ptr(btf2, 9);				/* [10] ptr to fwd struct s2 */
+	btf__add_struct(btf2, "s1", 16);		/* [11] struct s1 { */
+	btf__add_field(btf2, "f1", 8, 0, 0);		/*      struct s1 *f1; */
+	btf__add_field(btf2, "f2", 10, 64, 0);		/*      struct s2 *f2; */
+							/* } */
+	btf__add_fwd(btf2, "s3", BTF_FWD_STRUCT);	/* [12] fwd for struct s3 */
+	btf__add_ptr(btf2, 12);				/* [13] ptr to struct s1 */
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=4",
+		"[3] PTR '(anon)' type_id=5",
+		"[4] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=64",
+		"[5] STRUCT 's2' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[6] STRUCT 's3' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[7] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[8] PTR '(anon)' type_id=11",
+		"[9] FWD 's2' fwd_kind=struct",
+		"[10] PTR '(anon)' type_id=9",
+		"[11] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=8 bits_offset=0\n"
+		"\t'f2' type_id=10 bits_offset=64",
+		"[12] FWD 's3' fwd_kind=struct",
+		"[13] PTR '(anon)' type_id=12");
+
+	err = btf__dedup(btf2, NULL);
+	if (!ASSERT_OK(err, "btf_dedup"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=4",
+		"[3] PTR '(anon)' type_id=5",
+		"[4] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=64",
+		"[5] STRUCT 's2' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[6] STRUCT 's3' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[7] PTR '(anon)' type_id=6");
+
+cleanup:
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+static void test_split_struct_duped() {
+	struct btf *btf1, *btf2;
+	int err;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__set_pointer_size(btf1, 8); /* enforce 64-bit arch */
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_ptr(btf1, 5);				/* [2] ptr to struct s1 */
+	btf__add_fwd(btf1, "s2", BTF_FWD_STRUCT);	/* [3] fwd for struct s2 */
+	btf__add_ptr(btf1, 3);				/* [4] ptr to fwd struct s2 */
+	btf__add_struct(btf1, "s1", 16);		/* [5] struct s1 { */
+	btf__add_field(btf1, "f1", 2, 0, 0);		/*      struct s1 *f1; */
+	btf__add_field(btf1, "f2", 4, 64, 0);		/*      struct s2 *f2; */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=5",
+		"[3] FWD 's2' fwd_kind=struct",
+		"[4] PTR '(anon)' type_id=3",
+		"[5] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=4 bits_offset=64");
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	btf__add_int(btf2, "int", 4, BTF_INT_SIGNED);	/* [6] int */
+	btf__add_ptr(btf2, 10);				/* [7] ptr to struct s1 */
+	btf__add_fwd(btf2, "s2", BTF_FWD_STRUCT);	/* [8] fwd for struct s2 */
+	btf__add_ptr(btf2, 11);				/* [9] ptr to struct s2 */
+	btf__add_struct(btf2, "s1", 16);		/* [10] struct s1 { */
+	btf__add_field(btf2, "f1", 7, 0, 0);		/*      struct s1 *f1; */
+	btf__add_field(btf2, "f2", 9, 64, 0);		/*      struct s2 *f2; */
+							/* } */
+	btf__add_struct(btf2, "s2", 40);		/* [11] struct s2 {	*/
+	btf__add_field(btf2, "f1", 7, 0, 0);		/*      struct s1 *f1;	*/
+	btf__add_field(btf2, "f2", 9, 64, 0);		/*      struct s2 *f2;	*/
+	btf__add_field(btf2, "f3", 6, 128, 0);		/*      int f3;		*/
+	btf__add_field(btf2, "f4", 10, 192, 0);		/*      struct s1 f4;	*/
+							/* } */
+	btf__add_ptr(btf2, 8);				/* [12] ptr to fwd struct s2 */
+	btf__add_struct(btf2, "s3", 8);			/* [13] struct s3 { */
+	btf__add_field(btf2, "f1", 12, 0, 0);		/*      struct s2 *f1; (fwd) */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=5",
+		"[3] FWD 's2' fwd_kind=struct",
+		"[4] PTR '(anon)' type_id=3",
+		"[5] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=4 bits_offset=64",
+		"[6] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[7] PTR '(anon)' type_id=10",
+		"[8] FWD 's2' fwd_kind=struct",
+		"[9] PTR '(anon)' type_id=11",
+		"[10] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=7 bits_offset=0\n"
+		"\t'f2' type_id=9 bits_offset=64",
+		"[11] STRUCT 's2' size=40 vlen=4\n"
+		"\t'f1' type_id=7 bits_offset=0\n"
+		"\t'f2' type_id=9 bits_offset=64\n"
+		"\t'f3' type_id=6 bits_offset=128\n"
+		"\t'f4' type_id=10 bits_offset=192",
+		"[12] PTR '(anon)' type_id=8",
+		"[13] STRUCT 's3' size=8 vlen=1\n"
+		"\t'f1' type_id=12 bits_offset=0");
+
+	err = btf__dedup(btf2, NULL);
+	if (!ASSERT_OK(err, "btf_dedup"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=5",
+		"[3] FWD 's2' fwd_kind=struct",
+		"[4] PTR '(anon)' type_id=3",
+		"[5] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=2 bits_offset=0\n"
+		"\t'f2' type_id=4 bits_offset=64",
+		"[6] PTR '(anon)' type_id=8",
+		"[7] PTR '(anon)' type_id=9",
+		"[8] STRUCT 's1' size=16 vlen=2\n"
+		"\t'f1' type_id=6 bits_offset=0\n"
+		"\t'f2' type_id=7 bits_offset=64",
+		"[9] STRUCT 's2' size=40 vlen=4\n"
+		"\t'f1' type_id=6 bits_offset=0\n"
+		"\t'f2' type_id=7 bits_offset=64\n"
+		"\t'f3' type_id=1 bits_offset=128\n"
+		"\t'f4' type_id=8 bits_offset=192",
+		"[10] STRUCT 's3' size=8 vlen=1\n"
+		"\t'f1' type_id=7 bits_offset=0");
+
+cleanup:
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+static void btf_add_dup_struct_in_cu(struct btf *btf, int start_id)
+{
+#define ID(n) (start_id + n)
+	btf__set_pointer_size(btf, 8); /* enforce 64-bit arch */
+
+	btf__add_int(btf, "int", 4, BTF_INT_SIGNED);    /* [1] int */
+
+	btf__add_struct(btf, "s", 8);                   /* [2] struct s { */
+	btf__add_field(btf, "a", ID(3), 0, 0);          /*      struct anon a; */
+	btf__add_field(btf, "b", ID(4), 0, 0);          /*      struct anon b; */
+							/* } */
+
+	btf__add_struct(btf, "(anon)", 8);              /* [3] struct anon { */
+	btf__add_field(btf, "f1", ID(1), 0, 0);         /*      int f1; */
+	btf__add_field(btf, "f2", ID(1), 32, 0);        /*      int f2; */
+							/* } */
+
+	btf__add_struct(btf, "(anon)", 8);              /* [4] struct anon { */
+	btf__add_field(btf, "f1", ID(1), 0, 0);         /*      int f1; */
+	btf__add_field(btf, "f2", ID(1), 32, 0);        /*      int f2; */
+							/* } */
+#undef ID
+}
+
+static void test_split_dup_struct_in_cu()
+{
+	struct btf *btf1, *btf2 = NULL;
+	int err;
+
+	/* generate the base data.. */
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf_add_dup_struct_in_cu(btf1, 0);
+
+	VALIDATE_RAW_BTF(
+			btf1,
+			"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+			"[2] STRUCT 's' size=8 vlen=2\n"
+			"\t'a' type_id=3 bits_offset=0\n"
+			"\t'b' type_id=4 bits_offset=0",
+			"[3] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=1 bits_offset=0\n"
+			"\t'f2' type_id=1 bits_offset=32",
+			"[4] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=1 bits_offset=0\n"
+			"\t'f2' type_id=1 bits_offset=32");
+
+	/* ..dedup them... */
+	err = btf__dedup(btf1, NULL);
+	if (!ASSERT_OK(err, "btf_dedup"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+			btf1,
+			"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+			"[2] STRUCT 's' size=8 vlen=2\n"
+			"\t'a' type_id=3 bits_offset=0\n"
+			"\t'b' type_id=3 bits_offset=0",
+			"[3] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=1 bits_offset=0\n"
+			"\t'f2' type_id=1 bits_offset=32");
+
+	/* and add the same data on top of it */
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	btf_add_dup_struct_in_cu(btf2, 3);
+
+	VALIDATE_RAW_BTF(
+			btf2,
+			"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+			"[2] STRUCT 's' size=8 vlen=2\n"
+			"\t'a' type_id=3 bits_offset=0\n"
+			"\t'b' type_id=3 bits_offset=0",
+			"[3] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=1 bits_offset=0\n"
+			"\t'f2' type_id=1 bits_offset=32",
+			"[4] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+			"[5] STRUCT 's' size=8 vlen=2\n"
+			"\t'a' type_id=6 bits_offset=0\n"
+			"\t'b' type_id=7 bits_offset=0",
+			"[6] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=4 bits_offset=0\n"
+			"\t'f2' type_id=4 bits_offset=32",
+			"[7] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=4 bits_offset=0\n"
+			"\t'f2' type_id=4 bits_offset=32");
+
+	err = btf__dedup(btf2, NULL);
+	if (!ASSERT_OK(err, "btf_dedup"))
+		goto cleanup;
+
+	/* after dedup it should match the original data */
+	VALIDATE_RAW_BTF(
+			btf2,
+			"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+			"[2] STRUCT 's' size=8 vlen=2\n"
+			"\t'a' type_id=3 bits_offset=0\n"
+			"\t'b' type_id=3 bits_offset=0",
+			"[3] STRUCT '(anon)' size=8 vlen=2\n"
+			"\t'f1' type_id=1 bits_offset=0\n"
+			"\t'f2' type_id=1 bits_offset=32");
+
+cleanup:
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* Ensure module split BTF dedup worked correctly; when dedup fails badly
+ * core kernel types are in split BTF also, so ensure that references to
+ * such types point at base - not split - BTF.
+ *
+ * bpf_testmod_test_write() has multiple core kernel type parameters;
+ *
+ * ssize_t
+ * bpf_testmod_test_write(struct file *file, struct kobject *kobj,
+ *                        struct bin_attribute *bin_attr,
+ *                        char *buf, loff_t off, size_t len);
+ *
+ * Ensure each of the FUNC_PROTO params is a core kernel type.
+ *
+ * Do the same for
+ *
+ * __bpf_kfunc struct sock *bpf_kfunc_call_test3(struct sock *sk);
+ *
+ * ...and
+ *
+ * __bpf_kfunc void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb);
+ *
+ */
+const char *mod_funcs[] = {
+	"bpf_testmod_test_write",
+	"bpf_kfunc_call_test3",
+	"bpf_kfunc_call_test_pass_ctx"
+};
+
+static void test_split_module(void)
+{
+	struct btf *vmlinux_btf, *btf1 = NULL;
+	int i, nr_base_types;
+
+	vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(vmlinux_btf, "vmlinux_btf"))
+		return;
+	nr_base_types = btf__type_cnt(vmlinux_btf);
+	if (!ASSERT_GT(nr_base_types, 0, "nr_base_types"))
+		goto cleanup;
+
+	btf1 = btf__parse_split("/sys/kernel/btf/bpf_testmod", vmlinux_btf);
+	if (!ASSERT_OK_PTR(btf1, "split_btf"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(mod_funcs); i++) {
+		const struct btf_param *p;
+		const struct btf_type *t;
+		__u16 vlen;
+		__u32 id;
+		int j;
+
+		id = btf__find_by_name_kind(btf1, mod_funcs[i], BTF_KIND_FUNC);
+		if (!ASSERT_GE(id, nr_base_types, "func_id"))
+			goto cleanup;
+		t = btf__type_by_id(btf1, id);
+		if (!ASSERT_OK_PTR(t, "func_id_type"))
+			goto cleanup;
+		t = btf__type_by_id(btf1, t->type);
+		if (!ASSERT_OK_PTR(t, "func_proto_id_type"))
+			goto cleanup;
+		if (!ASSERT_EQ(btf_is_func_proto(t), true, "is_func_proto"))
+			goto cleanup;
+		vlen = btf_vlen(t);
+
+		for (j = 0, p = btf_params(t); j < vlen; j++, p++) {
+			/* bpf_testmod uses resilient split BTF, so any
+			 * reference types will be added to split BTF and their
+			 * associated targets will be base BTF types; for example
+			 * for a "struct sock *" the PTR will be in split BTF
+			 * while the "struct sock" will be in base.
+			 *
+			 * In some cases like loff_t we have to resolve
+			 * multiple typedefs hence the while() loop below.
+			 *
+			 * Note that resilient split BTF generation depends
+			 * on pahole version, so we do not assert that
+			 * reference types are in split BTF, as if pahole
+			 * does not support resilient split BTF they will
+			 * also be base BTF types.
+			 */
+			id = p->type;
+			do {
+				t = btf__type_by_id(btf1, id);
+				if (!ASSERT_OK_PTR(t, "param_ref_type"))
+					goto cleanup;
+				if (!btf_is_mod(t) && !btf_is_ptr(t) && !btf_is_typedef(t))
+					break;
+				id = t->type;
+			} while (true);
+
+			if (!ASSERT_LT(id, nr_base_types, "verify_base_type"))
+				goto cleanup;
+		}
+	}
+cleanup:
+	btf__free(btf1);
+	btf__free(vmlinux_btf);
+}
+
+void test_btf_dedup_split()
+{
+	if (test__start_subtest("split_simple"))
+		test_split_simple();
+	if (test__start_subtest("split_struct_duped"))
+		test_split_struct_duped();
+	if (test__start_subtest("split_fwd_resolve"))
+		test_split_fwd_resolve();
+	if (test__start_subtest("split_dup_struct_in_cu"))
+		test_split_dup_struct_in_cu();
+	if (test__start_subtest("split_module"))
+		test_split_module();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_distill.c b/tools/testing/selftests/bpf/prog_tests/btf_distill.c
new file mode 100644
index 000000000000..fb67ae195a73
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_distill.c
@@ -0,0 +1,692 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "btf_helpers.h"
+
+/* Fabricate base, split BTF with references to base types needed; then create
+ * split BTF with distilled base BTF and ensure expectations are met:
+ *  - only referenced base types from split BTF are present
+ *  - struct/union/enum are represented as empty unless anonymous, when they
+ *    are represented in full in split BTF
+ */
+static void test_distilled_base(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_ptr(btf1, 1);				/* [2] ptr to int */
+	btf__add_struct(btf1, "s1", 8);			/* [3] struct s1 { */
+	btf__add_field(btf1, "f1", 2, 0, 0);		/*      int *f1; */
+							/* } */
+	btf__add_struct(btf1, "", 12);			/* [4] struct { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+	btf__add_field(btf1, "f2", 3, 32, 0);		/*	struct s1 f2; */
+							/* } */
+	btf__add_int(btf1, "unsigned int", 4, 0);	/* [5] unsigned int */
+	btf__add_union(btf1, "u1", 12);			/* [6] union u1 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+	btf__add_field(btf1, "f2", 2, 0, 0);		/*	int *f2; */
+							/* } */
+	btf__add_union(btf1, "", 4);			/* [7] union { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+							/* } */
+	btf__add_enum(btf1, "e1", 4);			/* [8] enum e1 { */
+	btf__add_enum_value(btf1, "v1", 1);		/*	v1 = 1; */
+							/* } */
+	btf__add_enum(btf1, "", 4);			/* [9] enum { */
+	btf__add_enum_value(btf1, "av1", 2);		/*	av1 = 2; */
+							/* } */
+	btf__add_enum64(btf1, "e641", 8, true);		/* [10] enum64 { */
+	btf__add_enum64_value(btf1, "v1", 1024);	/*	v1 = 1024; */
+							/* } */
+	btf__add_enum64(btf1, "", 8, true);		/* [11] enum64 { */
+	btf__add_enum64_value(btf1, "v1", 1025);	/*	v1 = 1025; */
+							/* } */
+	btf__add_struct(btf1, "unneeded", 4);		/* [12] struct unneeded { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+							/* } */
+	btf__add_struct(btf1, "embedded", 4);		/* [13] struct embedded { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+							/* } */
+	btf__add_func_proto(btf1, 1);			/* [14] int (*)(int *p1); */
+	btf__add_func_param(btf1, "p1", 1);
+
+	btf__add_array(btf1, 1, 1, 3);			/* [15] int [3]; */
+
+	btf__add_struct(btf1, "from_proto", 4);		/* [16] struct from_proto { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	int f1; */
+							/* } */
+	btf__add_union(btf1, "u1", 4);			/* [17] union u1 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*	 int f1; */
+							/* } */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=8 vlen=1\n"
+		"\t'f1' type_id=2 bits_offset=0",
+		"[4] STRUCT '(anon)' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=32",
+		"[5] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none)",
+		"[6] UNION 'u1' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=2 bits_offset=0",
+		"[7] UNION '(anon)' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[8] ENUM 'e1' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'v1' val=1",
+		"[9] ENUM '(anon)' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'av1' val=2",
+		"[10] ENUM64 'e641' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1024",
+		"[11] ENUM64 '(anon)' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1025",
+		"[12] STRUCT 'unneeded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[13] STRUCT 'embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[14] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=1",
+		"[15] ARRAY '(anon)' type_id=1 index_type_id=1 nr_elems=3",
+		"[16] STRUCT 'from_proto' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[17] UNION 'u1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0");
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	btf__add_ptr(btf2, 3);				/* [18] ptr to struct s1 */
+	/* add ptr to struct anon */
+	btf__add_ptr(btf2, 4);				/* [19] ptr to struct (anon) */
+	btf__add_const(btf2, 6);			/* [20] const union u1 */
+	btf__add_restrict(btf2, 7);			/* [21] restrict union (anon) */
+	btf__add_volatile(btf2, 8);			/* [22] volatile enum e1 */
+	btf__add_typedef(btf2, "et", 9);		/* [23] typedef enum (anon) */
+	btf__add_const(btf2, 10);			/* [24] const enum64 e641 */
+	btf__add_ptr(btf2, 11);				/* [25] restrict enum64 (anon) */
+	btf__add_struct(btf2, "with_embedded", 4);	/* [26] struct with_embedded { */
+	btf__add_field(btf2, "f1", 13, 0, 0);		/*	struct embedded f1; */
+							/* } */
+	btf__add_func(btf2, "fn", BTF_FUNC_STATIC, 14);	/* [27] int fn(int p1); */
+	btf__add_typedef(btf2, "arraytype", 15);	/* [28] typedef int[3] foo; */
+	btf__add_func_proto(btf2, 1);			/* [29] int (*)(struct from proto p1); */
+	btf__add_func_param(btf2, "p1", 16);
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=8 vlen=1\n"
+		"\t'f1' type_id=2 bits_offset=0",
+		"[4] STRUCT '(anon)' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=32",
+		"[5] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none)",
+		"[6] UNION 'u1' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=2 bits_offset=0",
+		"[7] UNION '(anon)' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[8] ENUM 'e1' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'v1' val=1",
+		"[9] ENUM '(anon)' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'av1' val=2",
+		"[10] ENUM64 'e641' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1024",
+		"[11] ENUM64 '(anon)' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1025",
+		"[12] STRUCT 'unneeded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[13] STRUCT 'embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[14] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=1",
+		"[15] ARRAY '(anon)' type_id=1 index_type_id=1 nr_elems=3",
+		"[16] STRUCT 'from_proto' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[17] UNION 'u1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[18] PTR '(anon)' type_id=3",
+		"[19] PTR '(anon)' type_id=4",
+		"[20] CONST '(anon)' type_id=6",
+		"[21] RESTRICT '(anon)' type_id=7",
+		"[22] VOLATILE '(anon)' type_id=8",
+		"[23] TYPEDEF 'et' type_id=9",
+		"[24] CONST '(anon)' type_id=10",
+		"[25] PTR '(anon)' type_id=11",
+		"[26] STRUCT 'with_embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=13 bits_offset=0",
+		"[27] FUNC 'fn' type_id=14 linkage=static",
+		"[28] TYPEDEF 'arraytype' type_id=15",
+		"[29] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=16");
+
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(8, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf4,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] STRUCT 's1' size=8 vlen=0",
+		"[3] UNION 'u1' size=12 vlen=0",
+		"[4] ENUM 'e1' encoding=UNSIGNED size=4 vlen=0",
+		"[5] ENUM 'e641' encoding=UNSIGNED size=8 vlen=0",
+		"[6] STRUCT 'embedded' size=4 vlen=0",
+		"[7] STRUCT 'from_proto' size=4 vlen=0",
+		/* split BTF; these types should match split BTF above from 17-28, with
+		 * updated type id references
+		 */
+		"[8] PTR '(anon)' type_id=2",
+		"[9] PTR '(anon)' type_id=20",
+		"[10] CONST '(anon)' type_id=3",
+		"[11] RESTRICT '(anon)' type_id=21",
+		"[12] VOLATILE '(anon)' type_id=4",
+		"[13] TYPEDEF 'et' type_id=22",
+		"[14] CONST '(anon)' type_id=5",
+		"[15] PTR '(anon)' type_id=23",
+		"[16] STRUCT 'with_embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=6 bits_offset=0",
+		"[17] FUNC 'fn' type_id=24 linkage=static",
+		"[18] TYPEDEF 'arraytype' type_id=25",
+		"[19] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=7",
+		/* split BTF types added from original base BTF below */
+		"[20] STRUCT '(anon)' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=2 bits_offset=32",
+		"[21] UNION '(anon)' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[22] ENUM '(anon)' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'av1' val=2",
+		"[23] ENUM64 '(anon)' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1025",
+		"[24] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=1",
+		"[25] ARRAY '(anon)' type_id=1 index_type_id=1 nr_elems=3");
+
+	if (!ASSERT_EQ(btf__relocate(btf4, btf1), 0, "relocate_split"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf4,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] STRUCT 's1' size=8 vlen=1\n"
+		"\t'f1' type_id=2 bits_offset=0",
+		"[4] STRUCT '(anon)' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=32",
+		"[5] INT 'unsigned int' size=4 bits_offset=0 nr_bits=32 encoding=(none)",
+		"[6] UNION 'u1' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=2 bits_offset=0",
+		"[7] UNION '(anon)' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[8] ENUM 'e1' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'v1' val=1",
+		"[9] ENUM '(anon)' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'av1' val=2",
+		"[10] ENUM64 'e641' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1024",
+		"[11] ENUM64 '(anon)' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1025",
+		"[12] STRUCT 'unneeded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[13] STRUCT 'embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[14] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=1",
+		"[15] ARRAY '(anon)' type_id=1 index_type_id=1 nr_elems=3",
+		"[16] STRUCT 'from_proto' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[17] UNION 'u1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[18] PTR '(anon)' type_id=3",
+		"[19] PTR '(anon)' type_id=30",
+		"[20] CONST '(anon)' type_id=6",
+		"[21] RESTRICT '(anon)' type_id=31",
+		"[22] VOLATILE '(anon)' type_id=8",
+		"[23] TYPEDEF 'et' type_id=32",
+		"[24] CONST '(anon)' type_id=10",
+		"[25] PTR '(anon)' type_id=33",
+		"[26] STRUCT 'with_embedded' size=4 vlen=1\n"
+		"\t'f1' type_id=13 bits_offset=0",
+		"[27] FUNC 'fn' type_id=34 linkage=static",
+		"[28] TYPEDEF 'arraytype' type_id=35",
+		"[29] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=16",
+		/* below here are (duplicate) anon base types added by distill
+		 * process to split BTF.
+		 */
+		"[30] STRUCT '(anon)' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=3 bits_offset=32",
+		"[31] UNION '(anon)' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[32] ENUM '(anon)' encoding=UNSIGNED size=4 vlen=1\n"
+		"\t'av1' val=2",
+		"[33] ENUM64 '(anon)' encoding=SIGNED size=8 vlen=1\n"
+		"\t'v1' val=1025",
+		"[34] FUNC_PROTO '(anon)' ret_type_id=1 vlen=1\n"
+		"\t'p1' type_id=1",
+		"[35] ARRAY '(anon)' type_id=1 index_type_id=1 nr_elems=3");
+
+cleanup:
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* ensure we can cope with multiple types with the same name in
+ * distilled base BTF.  In this case because sizes are different,
+ * we can still disambiguate them.
+ */
+static void test_distilled_base_multi(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	btf__add_int(btf1, "int", 8, BTF_INT_SIGNED);	/* [2] int */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED");
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+	btf__add_ptr(btf2, 1);
+	btf__add_const(btf2, 2);
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED",
+		"[3] PTR '(anon)' type_id=1",
+		"[4] CONST '(anon)' type_id=2");
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(3, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		btf3,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED");
+	if (!ASSERT_EQ(btf__relocate(btf4, btf1), 0, "relocate_split"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf4,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED",
+		"[3] PTR '(anon)' type_id=1",
+		"[4] CONST '(anon)' type_id=2");
+
+cleanup:
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* If a needed type is not present in the base BTF we wish to relocate
+ * with, btf__relocate() should error our.
+ */
+static void test_distilled_base_missing_err(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL, *btf5 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	btf__add_int(btf1, "int", 8, BTF_INT_SIGNED);   /* [2] int */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED");
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+	btf__add_ptr(btf2, 1);
+	btf__add_const(btf2, 2);
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED",
+		"[3] PTR '(anon)' type_id=1",
+		"[4] CONST '(anon)' type_id=2");
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(3, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		btf3,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED");
+	btf5 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf5, "empty_reloc_btf"))
+		goto cleanup;
+	btf__add_int(btf5, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	VALIDATE_RAW_BTF(
+		btf5,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	ASSERT_EQ(btf__relocate(btf4, btf5), -EINVAL, "relocate_split");
+
+cleanup:
+	btf__free(btf5);
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* With 2 types of same size in distilled base BTF, relocation should
+ * fail as we have no means to choose between them.
+ */
+static void test_distilled_base_multi_err(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [2] int */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+	btf__add_ptr(btf2, 1);
+	btf__add_const(btf2, 2);
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[3] PTR '(anon)' type_id=1",
+		"[4] CONST '(anon)' type_id=2");
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(3, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		btf3,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	ASSERT_EQ(btf__relocate(btf4, btf1), -EINVAL, "relocate_split");
+cleanup:
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* With 2 types of same size in base BTF, relocation should
+ * fail as we have no means to choose between them.
+ */
+static void test_distilled_base_multi_err2(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL, *btf5 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+	btf__add_ptr(btf2, 1);
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1");
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(2, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		btf3,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	btf5 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf5, "empty_reloc_btf"))
+		goto cleanup;
+	btf__add_int(btf5, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	btf__add_int(btf5, "int", 4, BTF_INT_SIGNED);   /* [2] int */
+	VALIDATE_RAW_BTF(
+		btf5,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	ASSERT_EQ(btf__relocate(btf4, btf5), -EINVAL, "relocate_split");
+cleanup:
+	btf__free(btf5);
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+/* create split reference BTF from vmlinux + split BTF with a few type references;
+ * ensure the resultant split reference BTF is as expected, containing only types
+ * needed to disambiguate references from split BTF.
+ */
+static void test_distilled_base_vmlinux(void)
+{
+	struct btf *split_btf = NULL, *vmlinux_btf = btf__load_vmlinux_btf();
+	struct btf *split_dist = NULL, *base_dist = NULL;
+	__s32 int_id, myint_id;
+
+	if (!ASSERT_OK_PTR(vmlinux_btf, "load_vmlinux"))
+		return;
+	int_id = btf__find_by_name_kind(vmlinux_btf, "int", BTF_KIND_INT);
+	if (!ASSERT_GT(int_id, 0, "find_int"))
+		goto cleanup;
+	split_btf = btf__new_empty_split(vmlinux_btf);
+	if (!ASSERT_OK_PTR(split_btf, "new_split"))
+		goto cleanup;
+	myint_id = btf__add_typedef(split_btf, "myint", int_id);
+	btf__add_ptr(split_btf, myint_id);
+
+	if (!ASSERT_EQ(btf__distill_base(split_btf, &base_dist, &split_dist), 0,
+		       "distill_vmlinux_base"))
+		goto cleanup;
+
+	if (!ASSERT_OK_PTR(split_dist, "split_distilled") ||
+	    !ASSERT_OK_PTR(base_dist, "base_dist"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		split_dist,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] TYPEDEF 'myint' type_id=1",
+		"[3] PTR '(anon)' type_id=2");
+
+cleanup:
+	btf__free(split_dist);
+	btf__free(base_dist);
+	btf__free(split_btf);
+	btf__free(vmlinux_btf);
+}
+
+/* Split and new base BTFs should inherit endianness from source BTF. */
+static void test_distilled_endianness(void)
+{
+	struct btf *base = NULL, *split = NULL, *new_base = NULL, *new_split = NULL;
+	struct btf *new_base1 = NULL, *new_split1 = NULL;
+	enum btf_endianness inverse_endianness;
+	const void *raw_data;
+	__u32 size;
+
+	base = btf__new_empty();
+	if (!ASSERT_OK_PTR(base, "empty_main_btf"))
+		return;
+	inverse_endianness = btf__endianness(base) == BTF_LITTLE_ENDIAN ? BTF_BIG_ENDIAN
+									: BTF_LITTLE_ENDIAN;
+	btf__set_endianness(base, inverse_endianness);
+	btf__add_int(base, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	VALIDATE_RAW_BTF(
+		base,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED");
+	split = btf__new_empty_split(base);
+	if (!ASSERT_OK_PTR(split, "empty_split_btf"))
+		goto cleanup;
+	btf__add_ptr(split, 1);
+	VALIDATE_RAW_BTF(
+		split,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1");
+	if (!ASSERT_EQ(0, btf__distill_base(split, &new_base, &new_split),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(new_base, "distilled_base") ||
+	    !ASSERT_OK_PTR(new_split, "distilled_split") ||
+	    !ASSERT_EQ(2, btf__type_cnt(new_base), "distilled_base_type_cnt"))
+		goto cleanup;
+	VALIDATE_RAW_BTF(
+		new_split,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1");
+
+	raw_data = btf__raw_data(new_base, &size);
+	if (!ASSERT_OK_PTR(raw_data, "btf__raw_data #1"))
+		goto cleanup;
+	new_base1 = btf__new(raw_data, size);
+	if (!ASSERT_OK_PTR(new_base1, "new_base1 = btf__new()"))
+		goto cleanup;
+	raw_data = btf__raw_data(new_split, &size);
+	if (!ASSERT_OK_PTR(raw_data, "btf__raw_data #2"))
+		goto cleanup;
+	new_split1 = btf__new_split(raw_data, size, new_base1);
+	if (!ASSERT_OK_PTR(new_split1, "new_split1 = btf__new()"))
+		goto cleanup;
+
+	ASSERT_EQ(btf__endianness(new_base1), inverse_endianness, "new_base1 endianness");
+	ASSERT_EQ(btf__endianness(new_split1), inverse_endianness, "new_split1 endianness");
+	VALIDATE_RAW_BTF(
+		new_split1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1");
+cleanup:
+	btf__free(new_split1);
+	btf__free(new_base1);
+	btf__free(new_split);
+	btf__free(new_base);
+	btf__free(split);
+	btf__free(base);
+}
+
+/* If a needed composite type, which is the member of composite type
+ * in the split BTF, has a different size in the base BTF we wish to
+ * relocate with, btf__relocate() should error out.
+ */
+static void test_distilled_base_embedded_err(void)
+{
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL, *btf4 = NULL, *btf5 = NULL;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	btf__add_struct(btf1, "s1", 4);                 /* [2] struct s1 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);            /*      int f1; */
+							/* } */
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0");
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	btf__add_struct(btf2, "with_embedded", 8);      /* [3] struct with_embedded { */
+	btf__add_field(btf2, "e1", 2, 0, 0);		/*      struct s1 e1; */
+							/* } */
+
+	VALIDATE_RAW_BTF(
+		btf2,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] STRUCT 's1' size=4 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0",
+		"[3] STRUCT 'with_embedded' size=8 vlen=1\n"
+		"\t'e1' type_id=2 bits_offset=0");
+
+	if (!ASSERT_EQ(0, btf__distill_base(btf2, &btf3, &btf4),
+		       "distilled_base") ||
+	    !ASSERT_OK_PTR(btf3, "distilled_base") ||
+	    !ASSERT_OK_PTR(btf4, "distilled_split") ||
+	    !ASSERT_EQ(2, btf__type_cnt(btf3), "distilled_base_type_cnt"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf4,
+		"[1] STRUCT 's1' size=4 vlen=0",
+		"[2] STRUCT 'with_embedded' size=8 vlen=1\n"
+		"\t'e1' type_id=1 bits_offset=0");
+
+	btf5 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf5, "empty_reloc_btf"))
+		goto cleanup;
+
+	btf__add_int(btf5, "int", 4, BTF_INT_SIGNED);   /* [1] int */
+	/* struct with the same name but different size */
+	btf__add_struct(btf5, "s1", 8);                 /* [2] struct s1 { */
+	btf__add_field(btf5, "f1", 1, 0, 0);            /*      int f1; */
+							/* } */
+
+	ASSERT_EQ(btf__relocate(btf4, btf5), -EINVAL, "relocate_split");
+cleanup:
+	btf__free(btf5);
+	btf__free(btf4);
+	btf__free(btf3);
+	btf__free(btf2);
+	btf__free(btf1);
+}
+
+void test_btf_distill(void)
+{
+	if (test__start_subtest("distilled_base"))
+		test_distilled_base();
+	if (test__start_subtest("distilled_base_multi"))
+		test_distilled_base_multi();
+	if (test__start_subtest("distilled_base_missing_err"))
+		test_distilled_base_missing_err();
+	if (test__start_subtest("distilled_base_multi_err"))
+		test_distilled_base_multi_err();
+	if (test__start_subtest("distilled_base_multi_err2"))
+		test_distilled_base_multi_err2();
+	if (test__start_subtest("distilled_base_embedded_err"))
+		test_distilled_base_embedded_err();
+	if (test__start_subtest("distilled_base_vmlinux"))
+		test_distilled_base_vmlinux();
+	if (test__start_subtest("distilled_endianness"))
+		test_distilled_endianness();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_dump.c b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
new file mode 100644
index 000000000000..10cba526d3e6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_dump.c
@@ -0,0 +1,1096 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+static int duration = 0;
+
+void btf_dump_printf(void *ctx, const char *fmt, va_list args)
+{
+	vfprintf(ctx, fmt, args);
+}
+
+static struct btf_dump_test_case {
+	const char *name;
+	const char *file;
+	bool known_ptr_sz;
+} btf_dump_test_cases[] = {
+	{"btf_dump: syntax", "btf_dump_test_case_syntax", true},
+	{"btf_dump: ordering", "btf_dump_test_case_ordering", false},
+	{"btf_dump: padding", "btf_dump_test_case_padding", true},
+	{"btf_dump: packing", "btf_dump_test_case_packing", true},
+	{"btf_dump: bitfields", "btf_dump_test_case_bitfields", true},
+	{"btf_dump: multidim", "btf_dump_test_case_multidim", false},
+	{"btf_dump: namespacing", "btf_dump_test_case_namespacing", false},
+};
+
+static int btf_dump_all_types(const struct btf *btf, void *ctx)
+{
+	size_t type_cnt = btf__type_cnt(btf);
+	struct btf_dump *d;
+	int err = 0, id;
+
+	d = btf_dump__new(btf, btf_dump_printf, ctx, NULL);
+	err = libbpf_get_error(d);
+	if (err)
+		return err;
+
+	for (id = 1; id < type_cnt; id++) {
+		err = btf_dump__dump_type(d, id);
+		if (err)
+			goto done;
+	}
+
+done:
+	btf_dump__free(d);
+	return err;
+}
+
+static int test_btf_dump_case(int n, struct btf_dump_test_case *t)
+{
+	char test_file[256], out_file[256], diff_cmd[1024];
+	struct btf *btf = NULL;
+	int err = 0, fd = -1;
+	FILE *f = NULL;
+
+	snprintf(test_file, sizeof(test_file), "%s.bpf.o", t->file);
+
+	btf = btf__parse_elf(test_file, NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse_elf")) {
+		err = -PTR_ERR(btf);
+		btf = NULL;
+		goto done;
+	}
+
+	/* tests with t->known_ptr_sz have no "long" or "unsigned long" type,
+	 * so it's impossible to determine correct pointer size; but if they
+	 * do, it should be 8 regardless of host architecture, because BPF
+	 * target is always 64-bit
+	 */
+	if (!t->known_ptr_sz) {
+		btf__set_pointer_size(btf, 8);
+	} else {
+		CHECK(btf__pointer_size(btf) != 8, "ptr_sz", "exp %d, got %zu\n",
+		      8, btf__pointer_size(btf));
+	}
+
+	snprintf(out_file, sizeof(out_file), "/tmp/%s.output.XXXXXX", t->file);
+	fd = mkstemp(out_file);
+	if (!ASSERT_GE(fd, 0, "create_tmp")) {
+		err = fd;
+		goto done;
+	}
+	f = fdopen(fd, "w");
+	if (CHECK(f == NULL, "open_tmp",  "failed to open file: %s(%d)\n",
+		  strerror(errno), errno)) {
+		close(fd);
+		goto done;
+	}
+
+	err = btf_dump_all_types(btf, f);
+	fclose(f);
+	close(fd);
+	if (CHECK(err, "btf_dump", "failure during C dumping: %d\n", err)) {
+		goto done;
+	}
+
+	snprintf(test_file, sizeof(test_file), "progs/%s.c", t->file);
+	if (access(test_file, R_OK) == -1)
+		/*
+		 * When the test is run with O=, kselftest copies TEST_FILES
+		 * without preserving the directory structure.
+		 */
+		snprintf(test_file, sizeof(test_file), "%s.c", t->file);
+	/*
+	 * Diff test output and expected test output, contained between
+	 * START-EXPECTED-OUTPUT and END-EXPECTED-OUTPUT lines in test case.
+	 * For expected output lines, everything before '*' is stripped out.
+	 * Also lines containing comment start and comment end markers are
+	 * ignored. 
+	 */
+	snprintf(diff_cmd, sizeof(diff_cmd),
+		 "awk '/START-EXPECTED-OUTPUT/{out=1;next} "
+		 "/END-EXPECTED-OUTPUT/{out=0} "
+		 "/\\/\\*|\\*\\//{next} " /* ignore comment start/end lines */
+		 "out {sub(/^[ \\t]*\\*/, \"\"); print}' '%s' | diff -u - '%s'",
+		 test_file, out_file);
+	err = system(diff_cmd);
+	if (CHECK(err, "diff",
+		  "differing test output, output=%s, err=%d, diff cmd:\n%s\n",
+		  out_file, err, diff_cmd))
+		goto done;
+
+	remove(out_file);
+
+done:
+	btf__free(btf);
+	return err;
+}
+
+struct test_ctx {
+	struct btf *btf;
+	struct btf_dump *d;
+	char *dump_buf;
+	size_t dump_buf_sz;
+	FILE *dump_buf_file;
+};
+
+static void test_ctx__free(struct test_ctx *t)
+{
+	fclose(t->dump_buf_file);
+	free(t->dump_buf);
+	btf_dump__free(t->d);
+	btf__free(t->btf);
+}
+
+static int test_ctx__init(struct test_ctx *t)
+{
+	t->dump_buf_file = open_memstream(&t->dump_buf, &t->dump_buf_sz);
+	if (!ASSERT_OK_PTR(t->dump_buf_file, "dump_memstream"))
+		return -1;
+	t->btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(t->btf, "new_empty"))
+		goto err_out;
+	t->d = btf_dump__new(t->btf, btf_dump_printf, t->dump_buf_file, NULL);
+	if (!ASSERT_OK(libbpf_get_error(t->d), "btf_dump__new"))
+		goto err_out;
+
+	return 0;
+
+err_out:
+	test_ctx__free(t);
+	return -1;
+}
+
+static void test_ctx__dump_and_compare(struct test_ctx *t,
+				       const char *expected_output,
+				       const char *message)
+{
+	int i, err;
+
+	for (i = 1; i < btf__type_cnt(t->btf); i++) {
+		err = btf_dump__dump_type(t->d, i);
+		ASSERT_OK(err, "dump_type_ok");
+	}
+
+	fflush(t->dump_buf_file);
+	t->dump_buf[t->dump_buf_sz] = 0; /* some libc implementations don't do this */
+
+	ASSERT_STREQ(t->dump_buf, expected_output, message);
+}
+
+static void test_btf_dump_incremental(void)
+{
+	struct test_ctx t = {};
+	struct btf *btf;
+	int id, err;
+
+	if (test_ctx__init(&t))
+		return;
+
+	btf = t.btf;
+
+	/* First, generate BTF corresponding to the following C code:
+	 *
+	 * enum x;
+	 *
+	 * enum x { X = 1 };
+	 *
+	 * enum { Y = 1 };
+	 *
+	 * struct s;
+	 *
+	 * struct s { int x; };
+	 *
+	 */
+	id = btf__add_enum(btf, "x", 4);
+	ASSERT_EQ(id, 1, "enum_declaration_id");
+	id = btf__add_enum(btf, "x", 4);
+	ASSERT_EQ(id, 2, "named_enum_id");
+	err = btf__add_enum_value(btf, "X", 1);
+	ASSERT_OK(err, "named_enum_val_ok");
+
+	id = btf__add_enum(btf, NULL, 4);
+	ASSERT_EQ(id, 3, "anon_enum_id");
+	err = btf__add_enum_value(btf, "Y", 1);
+	ASSERT_OK(err, "anon_enum_val_ok");
+
+	id = btf__add_int(btf, "int", 4, BTF_INT_SIGNED);
+	ASSERT_EQ(id, 4, "int_id");
+
+	id = btf__add_fwd(btf, "s", BTF_FWD_STRUCT);
+	ASSERT_EQ(id, 5, "fwd_id");
+
+	id = btf__add_struct(btf, "s", 4);
+	ASSERT_EQ(id, 6, "struct_id");
+	err = btf__add_field(btf, "x", 4, 0, 0);
+	ASSERT_OK(err, "field_ok");
+
+	test_ctx__dump_and_compare(&t,
+"enum x;\n"
+"\n"
+"enum x {\n"
+"	X = 1,\n"
+"};\n"
+"\n"
+"enum {\n"
+"	Y = 1,\n"
+"};\n"
+"\n"
+"struct s;\n"
+"\n"
+"struct s {\n"
+"	int x;\n"
+"};\n\n", "c_dump1");
+
+	/* Now, after dumping original BTF, append another struct that embeds
+	 * anonymous enum. It also has a name conflict with the first struct:
+	 *
+	 * struct s___2 {
+	 *     enum { VAL___2 = 1 } x;
+	 *     struct s s;
+	 * };
+	 *
+	 * This will test that btf_dump'er maintains internal state properly.
+	 * Note that VAL___2 enum value. It's because we've already emitted
+	 * that enum as a global anonymous enum, so btf_dump will ensure that
+	 * enum values don't conflict;
+	 *
+	 */
+	fseek(t.dump_buf_file, 0, SEEK_SET);
+
+	id = btf__add_struct(btf, "s", 4);
+	ASSERT_EQ(id, 7, "struct_id");
+	err = btf__add_field(btf, "x", 2, 0, 0);
+	ASSERT_OK(err, "field_ok");
+	err = btf__add_field(btf, "y", 3, 32, 0);
+	ASSERT_OK(err, "field_ok");
+	err = btf__add_field(btf, "s", 6, 64, 0);
+	ASSERT_OK(err, "field_ok");
+
+	test_ctx__dump_and_compare(&t,
+"struct s___2 {\n"
+"	enum x x;\n"
+"	enum {\n"
+"		Y___2 = 1,\n"
+"	} y;\n"
+"	struct s s;\n"
+"};\n\n" , "c_dump1");
+
+	test_ctx__free(&t);
+}
+
+static void test_btf_dump_type_tags(void)
+{
+	struct test_ctx t = {};
+	struct btf *btf;
+	int id, err;
+
+	if (test_ctx__init(&t))
+		return;
+
+	btf = t.btf;
+
+	/* Generate BTF corresponding to the following C code:
+	 *
+	 * struct s {
+	 *   void __attribute__((btf_type_tag(\"void_tag\"))) *p1;
+	 *   void __attribute__((void_attr)) *p2;
+	 * };
+	 *
+	 */
+
+	id = btf__add_type_tag(btf, "void_tag", 0);
+	ASSERT_EQ(id, 1, "type_tag_id");
+	id = btf__add_ptr(btf, id);
+	ASSERT_EQ(id, 2, "void_ptr_id1");
+
+	id = btf__add_type_attr(btf, "void_attr", 0);
+	ASSERT_EQ(id, 3, "type_attr_id");
+	id = btf__add_ptr(btf, id);
+	ASSERT_EQ(id, 4, "void_ptr_id2");
+
+	id = btf__add_struct(btf, "s", 8);
+	ASSERT_EQ(id, 5, "struct_id");
+	err = btf__add_field(btf, "p1", 2, 0, 0);
+	ASSERT_OK(err, "field_ok1");
+	err = btf__add_field(btf, "p2", 4, 0, 0);
+	ASSERT_OK(err, "field_ok2");
+
+	test_ctx__dump_and_compare(&t,
+"struct s {\n"
+"	void __attribute__((btf_type_tag(\"void_tag\"))) *p1;\n"
+"	void __attribute__((void_attr)) *p2;\n"
+"};\n\n", "dump_and_compare");
+
+	test_ctx__free(&t);
+}
+
+#define STRSIZE				4096
+
+static void btf_dump_snprintf(void *ctx, const char *fmt, va_list args)
+{
+	char *s = ctx, new[STRSIZE];
+
+	vsnprintf(new, STRSIZE, fmt, args);
+	if (strlen(s) < STRSIZE)
+		strncat(s, new, STRSIZE - strlen(s) - 1);
+}
+
+static int btf_dump_data(struct btf *btf, struct btf_dump *d,
+			 char *name, char *prefix, __u64 flags, void *ptr,
+			 size_t ptr_sz, char *str, const char *expected_val)
+{
+	DECLARE_LIBBPF_OPTS(btf_dump_type_data_opts, opts);
+	size_t type_sz;
+	__s32 type_id;
+	int ret = 0;
+
+	if (flags & BTF_F_COMPACT)
+		opts.compact = true;
+	if (flags & BTF_F_NONAME)
+		opts.skip_names = true;
+	if (flags & BTF_F_ZERO)
+		opts.emit_zeroes = true;
+	if (prefix) {
+		ASSERT_STRNEQ(name, prefix, strlen(prefix),
+			      "verify prefix match");
+		name += strlen(prefix) + 1;
+	}
+	type_id = btf__find_by_name(btf, name);
+	if (!ASSERT_GE(type_id, 0, "find type id"))
+		return -ENOENT;
+	type_sz = btf__resolve_size(btf, type_id);
+	str[0] = '\0';
+	ret = btf_dump__dump_type_data(d, type_id, ptr, ptr_sz, &opts);
+	if (type_sz <= ptr_sz) {
+		if (!ASSERT_EQ(ret, type_sz, "failed/unexpected type_sz"))
+			return -EINVAL;
+	} else {
+		if (!ASSERT_EQ(ret, -E2BIG, "failed to return -E2BIG"))
+			return -EINVAL;
+	}
+	if (!ASSERT_STREQ(str, expected_val, "ensure expected/actual match"))
+		return -EFAULT;
+	return 0;
+}
+
+#define TEST_BTF_DUMP_DATA(_b, _d, _prefix, _str, _type, _flags,	\
+			   _expected, ...)				\
+	do {								\
+		char __ptrtype[64] = #_type;				\
+		char *_ptrtype = (char *)__ptrtype;			\
+		_type _ptrdata = __VA_ARGS__;				\
+		void *_ptr = &_ptrdata;					\
+									\
+		(void) btf_dump_data(_b, _d, _ptrtype, _prefix, _flags,	\
+				     _ptr, sizeof(_type), _str,		\
+				     _expected);			\
+	} while (0)
+
+/* Use where expected data string matches its stringified declaration */
+#define TEST_BTF_DUMP_DATA_C(_b, _d, _prefix,  _str, _type, _flags,	\
+			     ...)					\
+	TEST_BTF_DUMP_DATA(_b, _d, _prefix, _str, _type, _flags,	\
+			   "(" #_type ")" #__VA_ARGS__,	__VA_ARGS__)
+
+/* overflow test; pass typesize < expected type size, ensure E2BIG returned */
+#define TEST_BTF_DUMP_DATA_OVER(_b, _d, _prefix, _str, _type, _type_sz,	\
+				_expected, ...)				\
+	do {								\
+		char __ptrtype[64] = #_type;				\
+		char *_ptrtype = (char *)__ptrtype;			\
+		_type _ptrdata = __VA_ARGS__;				\
+		void *_ptr = &_ptrdata;					\
+									\
+		(void) btf_dump_data(_b, _d, _ptrtype, _prefix, 0,	\
+				     _ptr, _type_sz, _str, _expected);	\
+	} while (0)
+
+#define TEST_BTF_DUMP_VAR(_b, _d, _prefix, _str, _var, _type, _flags,	\
+			  _expected, ...)				\
+	do {								\
+		_type _ptrdata = __VA_ARGS__;				\
+		void *_ptr = &_ptrdata;					\
+									\
+		(void) btf_dump_data(_b, _d, _var, _prefix, _flags,	\
+				     _ptr, sizeof(_type), _str,		\
+				     _expected);			\
+	} while (0)
+
+static void test_btf_dump_int_data(struct btf *btf, struct btf_dump *d,
+				   char *str)
+{
+#ifdef __SIZEOF_INT128__
+	unsigned __int128 i = 0xffffffffffffffff;
+
+	/* this dance is required because we cannot directly initialize
+	 * a 128-bit value to anything larger than a 64-bit value.
+	 */
+	i = (i << 64) | (i - 1);
+#endif
+	/* simple int */
+	TEST_BTF_DUMP_DATA_C(btf, d, NULL, str, int, BTF_F_COMPACT, 1234);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, BTF_F_COMPACT | BTF_F_NONAME,
+			   "1234", 1234);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, 0, "(int)1234", 1234);
+
+	/* zero value should be printed at toplevel */
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, BTF_F_COMPACT, "(int)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, BTF_F_COMPACT | BTF_F_NONAME,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, BTF_F_COMPACT | BTF_F_ZERO,
+			   "(int)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA_C(btf, d, NULL, str, int, BTF_F_COMPACT, -4567);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, BTF_F_COMPACT | BTF_F_NONAME,
+			   "-4567", -4567);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, int, 0, "(int)-4567", -4567);
+
+	TEST_BTF_DUMP_DATA_OVER(btf, d, NULL, str, int, sizeof(int)-1, "", 1);
+
+#ifdef __SIZEOF_INT128__
+	/* gcc encode unsigned __int128 type with name "__int128 unsigned" in dwarf,
+	 * and clang encode it with name "unsigned __int128" in dwarf.
+	 * Do an availability test for either variant before doing actual test.
+	 */
+	if (btf__find_by_name(btf, "unsigned __int128") > 0) {
+		TEST_BTF_DUMP_DATA(btf, d, NULL, str, unsigned __int128, BTF_F_COMPACT,
+				   "(unsigned __int128)0xffffffffffffffff",
+				   0xffffffffffffffff);
+		ASSERT_OK(btf_dump_data(btf, d, "unsigned __int128", NULL, 0, &i, 16, str,
+					"(unsigned __int128)0xfffffffffffffffffffffffffffffffe"),
+			  "dump unsigned __int128");
+	} else if (btf__find_by_name(btf, "__int128 unsigned") > 0) {
+		TEST_BTF_DUMP_DATA(btf, d, NULL, str, __int128 unsigned, BTF_F_COMPACT,
+				   "(__int128 unsigned)0xffffffffffffffff",
+				   0xffffffffffffffff);
+		ASSERT_OK(btf_dump_data(btf, d, "__int128 unsigned", NULL, 0, &i, 16, str,
+					"(__int128 unsigned)0xfffffffffffffffffffffffffffffffe"),
+			  "dump unsigned __int128");
+	} else {
+		ASSERT_TRUE(false, "unsigned_int128_not_found");
+	}
+#endif
+}
+
+static void test_btf_dump_float_data(struct btf *btf, struct btf_dump *d,
+				     char *str)
+{
+	float t1 = 1.234567;
+	float t2 = -1.234567;
+	float t3 = 0.0;
+	double t4 = 5.678912;
+	double t5 = -5.678912;
+	double t6 = 0.0;
+	long double t7 = 9.876543;
+	long double t8 = -9.876543;
+	long double t9 = 0.0;
+
+	/* since the kernel does not likely have any float types in its BTF, we
+	 * will need to add some of various sizes.
+	 */
+
+	ASSERT_GT(btf__add_float(btf, "test_float", 4), 0, "add float");
+	ASSERT_OK(btf_dump_data(btf, d, "test_float", NULL, 0, &t1, 4, str,
+				"(test_float)1.234567"), "dump float");
+	ASSERT_OK(btf_dump_data(btf, d, "test_float", NULL, 0, &t2, 4, str,
+				"(test_float)-1.234567"), "dump float");
+	ASSERT_OK(btf_dump_data(btf, d, "test_float", NULL, 0, &t3, 4, str,
+				"(test_float)0.000000"), "dump float");
+
+	ASSERT_GT(btf__add_float(btf, "test_double", 8), 0, "add_double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_double", NULL, 0, &t4, 8, str,
+		  "(test_double)5.678912"), "dump double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_double", NULL, 0, &t5, 8, str,
+		  "(test_double)-5.678912"), "dump double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_double", NULL, 0, &t6, 8, str,
+				"(test_double)0.000000"), "dump double");
+
+	ASSERT_GT(btf__add_float(btf, "test_long_double", 16), 0, "add long double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_long_double", NULL, 0, &t7, 16,
+				str, "(test_long_double)9.876543"),
+				"dump long_double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_long_double", NULL, 0, &t8, 16,
+				str, "(test_long_double)-9.876543"),
+				"dump long_double");
+	ASSERT_OK(btf_dump_data(btf, d, "test_long_double", NULL, 0, &t9, 16,
+				str, "(test_long_double)0.000000"),
+				"dump long_double");
+}
+
+static void test_btf_dump_char_data(struct btf *btf, struct btf_dump *d,
+				    char *str)
+{
+	/* simple char */
+	TEST_BTF_DUMP_DATA_C(btf, d, NULL, str, char, BTF_F_COMPACT, 100);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, BTF_F_COMPACT | BTF_F_NONAME,
+			   "100", 100);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, 0, "(char)100", 100);
+	/* zero value should be printed at toplevel */
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, BTF_F_COMPACT,
+			   "(char)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, BTF_F_COMPACT | BTF_F_NONAME,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, BTF_F_COMPACT | BTF_F_ZERO,
+			   "(char)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, char, 0, "(char)0", 0);
+
+	TEST_BTF_DUMP_DATA_OVER(btf, d, NULL, str, char, sizeof(char)-1, "", 100);
+}
+
+static void test_btf_dump_typedef_data(struct btf *btf, struct btf_dump *d,
+				       char *str)
+{
+	/* simple typedef */
+	TEST_BTF_DUMP_DATA_C(btf, d, NULL, str, uint64_t, BTF_F_COMPACT, 100);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, BTF_F_COMPACT | BTF_F_NONAME,
+			   "1", 1);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, 0, "(u64)1", 1);
+	/* zero value should be printed at toplevel */
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, BTF_F_COMPACT, "(u64)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, BTF_F_COMPACT | BTF_F_NONAME,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, BTF_F_COMPACT | BTF_F_ZERO,
+			   "(u64)0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "0", 0);
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, u64, 0, "(u64)0", 0);
+
+	/* typedef struct */
+	TEST_BTF_DUMP_DATA_C(btf, d, NULL, str, atomic_t, BTF_F_COMPACT,
+			     {.counter = (int)1,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, BTF_F_COMPACT | BTF_F_NONAME,
+			   "{1,}", { .counter = 1 });
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, 0,
+"(atomic_t){\n"
+"	.counter = (int)1,\n"
+"}",
+			   {.counter = 1,});
+	/* typedef with 0 value should be printed at toplevel */
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, BTF_F_COMPACT, "(atomic_t){}",
+			   {.counter = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, BTF_F_COMPACT | BTF_F_NONAME,
+			   "{}", {.counter = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, 0,
+"(atomic_t){\n"
+"}",
+			   {.counter = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, BTF_F_COMPACT | BTF_F_ZERO,
+			   "(atomic_t){.counter = (int)0,}",
+			   {.counter = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "{0,}", {.counter = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, NULL, str, atomic_t, BTF_F_ZERO,
+"(atomic_t){\n"
+"	.counter = (int)0,\n"
+"}",
+			   { .counter = 0,});
+
+	/* overflow should show type but not value since it overflows */
+	TEST_BTF_DUMP_DATA_OVER(btf, d, NULL, str, atomic_t, sizeof(atomic_t)-1,
+				"(atomic_t){\n", { .counter = 1});
+}
+
+static void test_btf_dump_enum_data(struct btf *btf, struct btf_dump *d,
+				    char *str)
+{
+	/* enum where enum value does (and does not) exist */
+	TEST_BTF_DUMP_DATA_C(btf, d, "enum", str, enum bpf_cmd, BTF_F_COMPACT,
+			     BPF_MAP_CREATE);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd, BTF_F_COMPACT,
+			   "(enum bpf_cmd)BPF_MAP_CREATE", 0);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "BPF_MAP_CREATE",
+			   BPF_MAP_CREATE);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd, 0,
+			   "(enum bpf_cmd)BPF_MAP_CREATE",
+			   BPF_MAP_CREATE);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "BPF_MAP_CREATE", 0);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd,
+			   BTF_F_COMPACT | BTF_F_ZERO,
+			   "(enum bpf_cmd)BPF_MAP_CREATE",
+			   BPF_MAP_CREATE);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "BPF_MAP_CREATE", BPF_MAP_CREATE);
+	TEST_BTF_DUMP_DATA_C(btf, d, "enum", str, enum bpf_cmd, BTF_F_COMPACT, 2000);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "2000", 2000);
+	TEST_BTF_DUMP_DATA(btf, d, "enum", str, enum bpf_cmd, 0,
+			   "(enum bpf_cmd)2000", 2000);
+
+	TEST_BTF_DUMP_DATA_OVER(btf, d, "enum", str, enum bpf_cmd,
+				sizeof(enum bpf_cmd) - 1, "", BPF_MAP_CREATE);
+}
+
+static void test_btf_dump_struct_data(struct btf *btf, struct btf_dump *d,
+				      char *str)
+{
+	DECLARE_LIBBPF_OPTS(btf_dump_type_data_opts, opts);
+	char zero_data[512] = { };
+	char type_data[512];
+	void *fops = type_data;
+	void *skb = type_data;
+	size_t type_sz;
+	__s32 type_id;
+	char *cmpstr;
+	int ret;
+
+	memset(type_data, 255, sizeof(type_data));
+
+	/* simple struct */
+	TEST_BTF_DUMP_DATA_C(btf, d, "struct", str, struct btf_enum, BTF_F_COMPACT,
+			     {.name_off = (__u32)3,.val = (__s32)-1,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{3,-1,}",
+			   { .name_off = 3, .val = -1,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum, 0,
+"(struct btf_enum){\n"
+"	.name_off = (__u32)3,\n"
+"	.val = (__s32)-1,\n"
+"}",
+			   { .name_off = 3, .val = -1,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{-1,}",
+			   { .name_off = 0, .val = -1,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_COMPACT | BTF_F_NONAME | BTF_F_ZERO,
+			   "{0,-1,}",
+			   { .name_off = 0, .val = -1,});
+	/* empty struct should be printed */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum, BTF_F_COMPACT,
+			   "(struct btf_enum){}",
+			   { .name_off = 0, .val = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{}",
+			   { .name_off = 0, .val = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum, 0,
+"(struct btf_enum){\n"
+"}",
+			   { .name_off = 0, .val = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_COMPACT | BTF_F_ZERO,
+			   "(struct btf_enum){.name_off = (__u32)0,.val = (__s32)0,}",
+			   { .name_off = 0, .val = 0,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct btf_enum,
+			   BTF_F_ZERO,
+"(struct btf_enum){\n"
+"	.name_off = (__u32)0,\n"
+"	.val = (__s32)0,\n"
+"}",
+			   { .name_off = 0, .val = 0,});
+
+	/* struct with pointers */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct list_head, BTF_F_COMPACT,
+			   "(struct list_head){.next = (struct list_head *)0x1,}",
+			   { .next = (struct list_head *)1 });
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct list_head, 0,
+"(struct list_head){\n"
+"	.next = (struct list_head *)0x1,\n"
+"}",
+			   { .next = (struct list_head *)1 });
+	/* NULL pointer should not be displayed */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct list_head, BTF_F_COMPACT,
+			   "(struct list_head){}",
+			   { .next = (struct list_head *)0 });
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct list_head, 0,
+"(struct list_head){\n"
+"}",
+			   { .next = (struct list_head *)0 });
+
+	/* struct with function pointers */
+	type_id = btf__find_by_name(btf, "file_operations");
+	if (ASSERT_GT(type_id, 0, "find type id")) {
+		type_sz = btf__resolve_size(btf, type_id);
+		str[0] = '\0';
+
+		ret = btf_dump__dump_type_data(d, type_id, fops, type_sz, &opts);
+		ASSERT_EQ(ret, type_sz,
+			  "unexpected return value dumping file_operations");
+		cmpstr =
+"(struct file_operations){\n"
+"	.owner = (struct module *)0xffffffffffffffff,\n"
+"	.fop_flags = (fop_flags_t)4294967295,";
+
+		ASSERT_STRNEQ(str, cmpstr, strlen(cmpstr), "file_operations");
+	}
+
+	/* struct with char array */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_prog_info, BTF_F_COMPACT,
+			   "(struct bpf_prog_info){.name = (char[16])['f','o','o',],}",
+			   { .name = "foo",});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_prog_info,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{['f','o','o',],}",
+			   {.name = "foo",});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_prog_info, 0,
+"(struct bpf_prog_info){\n"
+"	.name = (char[16])[\n"
+"		'f',\n"
+"		'o',\n"
+"		'o',\n"
+"	],\n"
+"}",
+			   {.name = "foo",});
+	/* leading null char means do not display string */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_prog_info, BTF_F_COMPACT,
+			   "(struct bpf_prog_info){}",
+			   {.name = {'\0', 'f', 'o', 'o'}});
+	/* handle non-printable characters */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_prog_info, BTF_F_COMPACT,
+			   "(struct bpf_prog_info){.name = (char[16])[1,2,3,],}",
+			   { .name = {1, 2, 3, 0}});
+
+	/* struct with non-char array */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct __sk_buff, BTF_F_COMPACT,
+			   "(struct __sk_buff){.cb = (__u32[5])[1,2,3,4,5,],}",
+			   { .cb = {1, 2, 3, 4, 5,},});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct __sk_buff,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{[1,2,3,4,5,],}",
+			   { .cb = { 1, 2, 3, 4, 5},});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct __sk_buff, 0,
+"(struct __sk_buff){\n"
+"	.cb = (__u32[5])[\n"
+"		1,\n"
+"		2,\n"
+"		3,\n"
+"		4,\n"
+"		5,\n"
+"	],\n"
+"}",
+			   { .cb = { 1, 2, 3, 4, 5},});
+	/* For non-char, arrays, show non-zero values only */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct __sk_buff, BTF_F_COMPACT,
+			   "(struct __sk_buff){.cb = (__u32[5])[0,0,1,0,0,],}",
+			   { .cb = { 0, 0, 1, 0, 0},});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct __sk_buff, 0,
+"(struct __sk_buff){\n"
+"	.cb = (__u32[5])[\n"
+"		0,\n"
+"		0,\n"
+"		1,\n"
+"		0,\n"
+"		0,\n"
+"	],\n"
+"}",
+			   { .cb = { 0, 0, 1, 0, 0},});
+
+	/* struct with bitfields */
+	TEST_BTF_DUMP_DATA_C(btf, d, "struct", str, struct bpf_insn, BTF_F_COMPACT,
+		{.code = (__u8)1,.dst_reg = (__u8)0x2,.src_reg = (__u8)0x3,.off = (__s16)4,.imm = (__s32)5,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_insn,
+			   BTF_F_COMPACT | BTF_F_NONAME,
+			   "{1,0x2,0x3,4,5,}",
+			   { .code = 1, .dst_reg = 0x2, .src_reg = 0x3, .off = 4,
+			     .imm = 5,});
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_insn, 0,
+"(struct bpf_insn){\n"
+"	.code = (__u8)1,\n"
+"	.dst_reg = (__u8)0x2,\n"
+"	.src_reg = (__u8)0x3,\n"
+"	.off = (__s16)4,\n"
+"	.imm = (__s32)5,\n"
+"}",
+			   {.code = 1, .dst_reg = 2, .src_reg = 3, .off = 4, .imm = 5});
+
+	/* zeroed bitfields should not be displayed */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_insn, BTF_F_COMPACT,
+			   "(struct bpf_insn){.dst_reg = (__u8)0x1,}",
+			   { .code = 0, .dst_reg = 1});
+
+	/* struct with enum bitfield */
+	type_id = btf__find_by_name(btf, "fs_context");
+	if (ASSERT_GT(type_id,  0, "find fs_context")) {
+		type_sz = btf__resolve_size(btf, type_id);
+		str[0] = '\0';
+
+		opts.emit_zeroes = true;
+		ret = btf_dump__dump_type_data(d, type_id, zero_data, type_sz, &opts);
+		ASSERT_EQ(ret, type_sz,
+			  "unexpected return value dumping fs_context");
+
+		ASSERT_NEQ(strstr(str, "FS_CONTEXT_FOR_MOUNT"), NULL,
+				  "bitfield value not present");
+	}
+
+	/* struct with nested anon union */
+	TEST_BTF_DUMP_DATA(btf, d, "struct", str, struct bpf_sock_ops, BTF_F_COMPACT,
+			   "(struct bpf_sock_ops){.op = (__u32)1,(union){.args = (__u32[4])[1,2,3,4,],.reply = (__u32)1,.replylong = (__u32[4])[1,2,3,4,],},}",
+			   { .op = 1, .args = { 1, 2, 3, 4}});
+
+	/* union with nested struct */
+	TEST_BTF_DUMP_DATA(btf, d, "union", str, union bpf_iter_link_info, BTF_F_COMPACT,
+			   "(union bpf_iter_link_info){.map = (struct){.map_fd = (__u32)1,},.cgroup = (struct){.order = (enum bpf_cgroup_iter_order)BPF_CGROUP_ITER_SELF_ONLY,.cgroup_fd = (__u32)1,},.task = (struct){.tid = (__u32)1,.pid = (__u32)1,},}",
+			   { .cgroup = { .order = 1, .cgroup_fd = 1, }});
+
+	/* struct skb with nested structs/unions; because type output is so
+	 * complex, we don't do a string comparison, just verify we return
+	 * the type size as the amount of data displayed.
+	 */
+	type_id = btf__find_by_name(btf, "sk_buff");
+	if (ASSERT_GT(type_id, 0, "find struct sk_buff")) {
+		type_sz = btf__resolve_size(btf, type_id);
+		str[0] = '\0';
+
+		ret = btf_dump__dump_type_data(d, type_id, skb, type_sz, &opts);
+		ASSERT_EQ(ret, type_sz,
+			  "unexpected return value dumping sk_buff");
+	}
+
+	/* overflow bpf_sock_ops struct with final element nonzero/zero.
+	 * Regardless of the value of the final field, we don't have all the
+	 * data we need to display it, so we should trigger an overflow.
+	 * In other words overflow checking should trump "is field zero?"
+	 * checks because if we've overflowed, it shouldn't matter what the
+	 * field is - we can't trust its value so shouldn't display it.
+	 */
+	TEST_BTF_DUMP_DATA_OVER(btf, d, "struct", str, struct bpf_sock_ops,
+				sizeof(struct bpf_sock_ops) - 1,
+				"(struct bpf_sock_ops){\n\t.op = (__u32)1,\n",
+				{ .op = 1, .skb_hwtstamp = 2});
+	TEST_BTF_DUMP_DATA_OVER(btf, d, "struct", str, struct bpf_sock_ops,
+				sizeof(struct bpf_sock_ops) - 1,
+				"(struct bpf_sock_ops){\n\t.op = (__u32)1,\n",
+				{ .op = 1, .skb_hwtstamp = 0});
+}
+
+static void test_btf_dump_var_data(struct btf *btf, struct btf_dump *d,
+				   char *str)
+{
+#if 0
+	TEST_BTF_DUMP_VAR(btf, d, NULL, str, "cpu_number", int, BTF_F_COMPACT,
+			  "int cpu_number = (int)100", 100);
+#endif
+	TEST_BTF_DUMP_VAR(btf, d, NULL, str, "bpf_cgrp_storage_busy", int, BTF_F_COMPACT,
+			  "static int bpf_cgrp_storage_busy = (int)2", 2);
+}
+
+struct btf_dump_string_ctx {
+	struct btf *btf;
+	struct btf_dump *d;
+	char *str;
+	struct btf_dump_type_data_opts *opts;
+	int array_id;
+};
+
+static int btf_dump_one_string(struct btf_dump_string_ctx *ctx,
+			       char *ptr, size_t ptr_sz,
+			       const char *expected_val)
+{
+	size_t type_sz;
+	int ret;
+
+	ctx->str[0] = '\0';
+	type_sz = btf__resolve_size(ctx->btf, ctx->array_id);
+	ret = btf_dump__dump_type_data(ctx->d, ctx->array_id, ptr, ptr_sz, ctx->opts);
+	if (type_sz <= ptr_sz) {
+		if (!ASSERT_EQ(ret, type_sz, "failed/unexpected type_sz"))
+			return -EINVAL;
+	}
+	if (!ASSERT_STREQ(ctx->str, expected_val, "ensure expected/actual match"))
+		return -EFAULT;
+	return 0;
+}
+
+static void btf_dump_strings(struct btf_dump_string_ctx *ctx)
+{
+	struct btf_dump_type_data_opts *opts = ctx->opts;
+
+	opts->emit_strings = true;
+
+	opts->compact = true;
+	opts->emit_zeroes = false;
+
+	opts->skip_names = false;
+	btf_dump_one_string(ctx, "foo", 4, "(char[4])\"foo\"");
+
+	opts->skip_names = true;
+	btf_dump_one_string(ctx, "foo", 4, "\"foo\"");
+
+	/* This should have no effect. */
+	opts->emit_zeroes = false;
+	btf_dump_one_string(ctx, "foo", 4, "\"foo\"");
+
+	/* This should have no effect. */
+	opts->compact = false;
+	btf_dump_one_string(ctx, "foo", 4, "\"foo\"");
+
+	/* Non-printable characters come out as hex. */
+	btf_dump_one_string(ctx, "fo\xff", 4, "\"fo\\xff\"");
+	btf_dump_one_string(ctx, "fo\x7", 4, "\"fo\\x07\"");
+
+	/*
+	 * Strings that are too long for the specified type ("char[4]")
+	 * should fall back to the current behavior.
+	 */
+	opts->compact = true;
+	btf_dump_one_string(ctx, "abcde", 6, "['a','b','c','d',]");
+
+	/*
+	 * Strings that are too short for the specified type ("char[4]")
+	 * should work normally.
+	 */
+	btf_dump_one_string(ctx, "ab", 3, "\"ab\"");
+
+	/* Non-NUL-terminated arrays don't get printed as strings. */
+	char food[4] = { 'f', 'o', 'o', 'd' };
+	char bye[3] = { 'b', 'y', 'e' };
+
+	btf_dump_one_string(ctx, food, 4, "['f','o','o','d',]");
+	btf_dump_one_string(ctx, bye, 3, "['b','y','e',]");
+
+	/* The embedded NUL should terminate the string. */
+	char embed[4] = { 'f', 'o', '\0', 'd' };
+
+	btf_dump_one_string(ctx, embed, 4, "\"fo\"");
+}
+
+static void test_btf_dump_string_data(void)
+{
+	struct test_ctx t = {};
+	char str[STRSIZE];
+	struct btf_dump *d;
+	DECLARE_LIBBPF_OPTS(btf_dump_type_data_opts, opts);
+	struct btf_dump_string_ctx ctx;
+	int char_id, int_id, array_id;
+
+	if (test_ctx__init(&t))
+		return;
+
+	d = btf_dump__new(t.btf, btf_dump_snprintf, str, NULL);
+	if (!ASSERT_OK_PTR(d, "could not create BTF dump"))
+		return;
+
+	/* Generate BTF for a four-element char array. */
+	char_id = btf__add_int(t.btf, "char", 1, BTF_INT_CHAR);
+	ASSERT_EQ(char_id, 1, "char_id");
+	int_id = btf__add_int(t.btf, "int", 4, BTF_INT_SIGNED);
+	ASSERT_EQ(int_id, 2, "int_id");
+	array_id = btf__add_array(t.btf, int_id, char_id, 4);
+	ASSERT_EQ(array_id, 3, "array_id");
+
+	ctx.btf = t.btf;
+	ctx.d = d;
+	ctx.str = str;
+	ctx.opts = &opts;
+	ctx.array_id = array_id;
+
+	btf_dump_strings(&ctx);
+
+	btf_dump__free(d);
+	test_ctx__free(&t);
+}
+
+static void test_btf_datasec(struct btf *btf, struct btf_dump *d, char *str,
+			     const char *name, const char *expected_val,
+			     void *data, size_t data_sz)
+{
+	DECLARE_LIBBPF_OPTS(btf_dump_type_data_opts, opts);
+	int ret = 0, cmp;
+	size_t secsize;
+	__s32 type_id;
+
+	opts.compact = true;
+
+	type_id = btf__find_by_name(btf, name);
+	if (!ASSERT_GT(type_id, 0, "find type id"))
+		return;
+
+	secsize = btf__resolve_size(btf, type_id);
+	ASSERT_EQ(secsize,  0, "verify section size");
+
+	str[0] = '\0';
+	ret = btf_dump__dump_type_data(d, type_id, data, data_sz, &opts);
+	ASSERT_EQ(ret, 0, "unexpected return value");
+
+	cmp = strcmp(str, expected_val);
+	ASSERT_EQ(cmp, 0, "ensure expected/actual match");
+}
+
+static void test_btf_dump_datasec_data(char *str)
+{
+	struct btf *btf;
+	char license[4] = "GPL";
+	struct btf_dump *d;
+
+	btf = btf__parse("xdping_kern.bpf.o", NULL);
+	if (!ASSERT_OK_PTR(btf, "xdping_kern.bpf.o BTF not found"))
+		return;
+
+	d = btf_dump__new(btf, btf_dump_snprintf, str, NULL);
+	if (!ASSERT_OK_PTR(d, "could not create BTF dump"))
+		goto out;
+
+	test_btf_datasec(btf, d, str, "license",
+			 "SEC(\"license\") char[4] _license = (char[4])['G','P','L',];",
+			 license, sizeof(license));
+out:
+	btf_dump__free(d);
+	btf__free(btf);
+}
+
+void test_btf_dump() {
+	char str[STRSIZE];
+	struct btf_dump *d;
+	struct btf *btf;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(btf_dump_test_cases); i++) {
+		struct btf_dump_test_case *t = &btf_dump_test_cases[i];
+
+		if (!test__start_subtest(t->name))
+			continue;
+
+		test_btf_dump_case(i, &btf_dump_test_cases[i]);
+	}
+	if (test__start_subtest("btf_dump: incremental"))
+		test_btf_dump_incremental();
+
+	if (test__start_subtest("btf_dump: type_tags"))
+		test_btf_dump_type_tags();
+
+	btf = libbpf_find_kernel_btf();
+	if (!ASSERT_OK_PTR(btf, "no kernel BTF found"))
+		return;
+
+	d = btf_dump__new(btf, btf_dump_snprintf, str, NULL);
+	if (!ASSERT_OK_PTR(d, "could not create BTF dump"))
+		return;
+
+	/* Verify type display for various types. */
+	if (test__start_subtest("btf_dump: int_data"))
+		test_btf_dump_int_data(btf, d, str);
+	if (test__start_subtest("btf_dump: float_data"))
+		test_btf_dump_float_data(btf, d, str);
+	if (test__start_subtest("btf_dump: char_data"))
+		test_btf_dump_char_data(btf, d, str);
+	if (test__start_subtest("btf_dump: typedef_data"))
+		test_btf_dump_typedef_data(btf, d, str);
+	if (test__start_subtest("btf_dump: enum_data"))
+		test_btf_dump_enum_data(btf, d, str);
+	if (test__start_subtest("btf_dump: struct_data"))
+		test_btf_dump_struct_data(btf, d, str);
+	if (test__start_subtest("btf_dump: var_data"))
+		test_btf_dump_var_data(btf, d, str);
+	if (test__start_subtest("btf_dump: string_data"))
+		test_btf_dump_string_data();
+	btf_dump__free(d);
+	btf__free(btf);
+
+	if (test__start_subtest("btf_dump: datasec_data"))
+		test_btf_dump_datasec_data(str);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_endian.c b/tools/testing/selftests/bpf/prog_tests/btf_endian.c
new file mode 100644
index 000000000000..5b9f84dbeb43
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_endian.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define _GNU_SOURCE
+#include <string.h>
+#include <byteswap.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+void test_btf_endian() {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	enum btf_endianness endian = BTF_LITTLE_ENDIAN;
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	enum btf_endianness endian = BTF_BIG_ENDIAN;
+#else
+#error "Unrecognized __BYTE_ORDER__"
+#endif
+	enum btf_endianness swap_endian = 1 - endian;
+	struct btf *btf = NULL, *swap_btf = NULL;
+	const void *raw_data, *swap_raw_data;
+	const struct btf_type *t;
+	const struct btf_header *hdr;
+	__u32 raw_sz, swap_raw_sz;
+	int var_id;
+
+	/* Load BTF in native endianness */
+	btf = btf__parse_elf("btf_dump_test_case_syntax.bpf.o", NULL);
+	if (!ASSERT_OK_PTR(btf, "parse_native_btf"))
+		goto err_out;
+
+	ASSERT_EQ(btf__endianness(btf), endian, "endian");
+	btf__set_endianness(btf, swap_endian);
+	ASSERT_EQ(btf__endianness(btf), swap_endian, "endian");
+
+	/* Get raw BTF data in non-native endianness... */
+	raw_data = btf__raw_data(btf, &raw_sz);
+	if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
+		goto err_out;
+
+	/* ...and open it as a new BTF instance */
+	swap_btf = btf__new(raw_data, raw_sz);
+	if (!ASSERT_OK_PTR(swap_btf, "parse_swap_btf"))
+		goto err_out;
+
+	ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
+	ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
+
+	swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
+	if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
+		goto err_out;
+
+	/* both raw data should be identical (with non-native endianness) */
+	ASSERT_OK(memcmp(raw_data, swap_raw_data, raw_sz), "mem_identical");
+
+	/* make sure that at least BTF header data is really swapped */
+	hdr = swap_raw_data;
+	ASSERT_EQ(bswap_16(hdr->magic), BTF_MAGIC, "btf_magic_swapped");
+	ASSERT_EQ(raw_sz, swap_raw_sz, "raw_sizes");
+
+	/* swap it back to native endianness */
+	btf__set_endianness(swap_btf, endian);
+	swap_raw_data = btf__raw_data(swap_btf, &swap_raw_sz);
+	if (!ASSERT_OK_PTR(swap_raw_data, "swap_raw_data"))
+		goto err_out;
+
+	/* now header should have native BTF_MAGIC */
+	hdr = swap_raw_data;
+	ASSERT_EQ(hdr->magic, BTF_MAGIC, "btf_magic_native");
+	ASSERT_EQ(raw_sz, swap_raw_sz, "raw_sizes");
+
+	/* now modify original BTF */
+	var_id = btf__add_var(btf, "some_var", BTF_VAR_GLOBAL_ALLOCATED, 1);
+	ASSERT_GT(var_id, 0, "var_id");
+
+	btf__free(swap_btf);
+	swap_btf = NULL;
+
+	btf__set_endianness(btf, swap_endian);
+	raw_data = btf__raw_data(btf, &raw_sz);
+	if (!ASSERT_OK_PTR(raw_data, "raw_data_inverted"))
+		goto err_out;
+
+	/* and re-open swapped raw data again */
+	swap_btf = btf__new(raw_data, raw_sz);
+	if (!ASSERT_OK_PTR(swap_btf, "parse_swap_btf"))
+		goto err_out;
+
+	ASSERT_EQ(btf__endianness(swap_btf), swap_endian, "endian");
+	ASSERT_EQ(btf__type_cnt(swap_btf), btf__type_cnt(btf), "nr_types");
+
+	/* the type should appear as if it was stored in native endianness */
+	t = btf__type_by_id(swap_btf, var_id);
+	ASSERT_STREQ(btf__str_by_offset(swap_btf, t->name_off), "some_var", "var_name");
+	ASSERT_EQ(btf_var(t)->linkage, BTF_VAR_GLOBAL_ALLOCATED, "var_linkage");
+	ASSERT_EQ(t->type, 1, "var_type");
+
+err_out:
+	btf__free(btf);
+	btf__free(swap_btf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_field_iter.c b/tools/testing/selftests/bpf/prog_tests/btf_field_iter.c
new file mode 100644
index 000000000000..32159d3eb281
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_field_iter.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "btf_helpers.h"
+#include "bpf/libbpf_internal.h"
+
+struct field_data {
+	__u32 ids[5];
+	const char *strs[5];
+} fields[] = {
+	{ .ids = {},		.strs = {} },
+	{ .ids = {},		.strs = { "int" } },
+	{ .ids = {},		.strs = { "int64" } },
+	{ .ids = { 1 },		.strs = { "" } },
+	{ .ids = { 2, 1 },	.strs = { "" } },
+	{ .ids = { 3, 1 },	.strs = { "s1", "f1", "f2" } },
+	{ .ids = { 1, 5 },	.strs = { "u1", "f1", "f2" } },
+	{ .ids = {},		.strs = { "e1", "v1", "v2" } },
+	{ .ids = {},		.strs = { "fw1" } },
+	{ .ids = { 1 },		.strs = { "t" } },
+	{ .ids = { 2 },		.strs = { "" } },
+	{ .ids = { 1 },		.strs = { "" } },
+	{ .ids = { 3 },		.strs = { "" } },
+	{ .ids = { 1, 1, 3 },	.strs = { "", "p1", "p2" } },
+	{ .ids = { 13 },	.strs = { "func" } },
+	{ .ids = { 1 },		.strs = { "var1" } },
+	{ .ids = { 3 },		.strs = { "var2" } },
+	{ .ids = {},		.strs = { "float" } },
+	{ .ids = { 11 },	.strs = { "decltag" } },
+	{ .ids = { 6 },		.strs = { "typetag" } },
+	{ .ids = {},		.strs = { "e64", "eval1", "eval2", "eval3" } },
+	{ .ids = { 15, 16 },	.strs = { "datasec1" } }
+
+};
+
+/* Fabricate BTF with various types and check BTF field iteration finds types,
+ * strings expected.
+ */
+void test_btf_field_iter(void)
+{
+	struct btf *btf = NULL;
+	int id;
+
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "empty_btf"))
+		return;
+
+	btf__add_int(btf, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_int(btf, "int64", 8, BTF_INT_SIGNED);	/* [2] int64 */
+	btf__add_ptr(btf, 1);				/* [3] int * */
+	btf__add_array(btf, 1, 2, 3);			/* [4] int64[3] */
+	btf__add_struct(btf, "s1", 12);			/* [5] struct s1 { */
+	btf__add_field(btf, "f1", 3, 0, 0);		/*      int *f1; */
+	btf__add_field(btf, "f2", 1, 0, 0);		/*	int f2; */
+							/* } */
+	btf__add_union(btf, "u1", 12);			/* [6] union u1 { */
+	btf__add_field(btf, "f1", 1, 0, 0);		/*	int f1; */
+	btf__add_field(btf, "f2", 5, 0, 0);		/*	struct s1 f2; */
+							/* } */
+	btf__add_enum(btf, "e1", 4);			/* [7] enum e1 { */
+	btf__add_enum_value(btf, "v1", 1);		/*	v1 = 1; */
+	btf__add_enum_value(btf, "v2", 2);		/*	v2 = 2; */
+							/* } */
+
+	btf__add_fwd(btf, "fw1", BTF_FWD_STRUCT);	/* [8] struct fw1; */
+	btf__add_typedef(btf, "t", 1);			/* [9] typedef int t; */
+	btf__add_volatile(btf, 2);			/* [10] volatile int64; */
+	btf__add_const(btf, 1);				/* [11] const int; */
+	btf__add_restrict(btf, 3);			/* [12] restrict int *; */
+	btf__add_func_proto(btf, 1);			/* [13] int (*)(int p1, int *p2); */
+	btf__add_func_param(btf, "p1", 1);
+	btf__add_func_param(btf, "p2", 3);
+
+	btf__add_func(btf, "func", BTF_FUNC_GLOBAL, 13);/* [14] int func(int p1, int *p2); */
+	btf__add_var(btf, "var1", BTF_VAR_STATIC, 1);	/* [15] static int var1; */
+	btf__add_var(btf, "var2", BTF_VAR_STATIC, 3);	/* [16] static int *var2; */
+	btf__add_float(btf, "float", 4);		/* [17] float; */
+	btf__add_decl_tag(btf, "decltag", 11, -1);	/* [18] decltag const int; */
+	btf__add_type_tag(btf, "typetag", 6);		/* [19] typetag union u1; */
+	btf__add_enum64(btf, "e64", 8, true);		/* [20] enum { */
+	btf__add_enum64_value(btf, "eval1", 1000);	/*	 eval1 = 1000, */
+	btf__add_enum64_value(btf, "eval2", 2000);	/*	 eval2 = 2000, */
+	btf__add_enum64_value(btf, "eval3", 3000);	/*	 eval3 = 3000 */
+							/* } */
+	btf__add_datasec(btf, "datasec1", 12);		/* [21] datasec datasec1 */
+	btf__add_datasec_var_info(btf, 15, 0, 4);
+	btf__add_datasec_var_info(btf, 16, 4, 8);
+
+	VALIDATE_RAW_BTF(
+		btf,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] INT 'int64' size=8 bits_offset=0 nr_bits=64 encoding=SIGNED",
+		"[3] PTR '(anon)' type_id=1",
+		"[4] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=3",
+		"[5] STRUCT 's1' size=12 vlen=2\n"
+		"\t'f1' type_id=3 bits_offset=0\n"
+		"\t'f2' type_id=1 bits_offset=0",
+		"[6] UNION 'u1' size=12 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=5 bits_offset=0",
+		"[7] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
+		"\t'v1' val=1\n"
+		"\t'v2' val=2",
+		"[8] FWD 'fw1' fwd_kind=struct",
+		"[9] TYPEDEF 't' type_id=1",
+		"[10] VOLATILE '(anon)' type_id=2",
+		"[11] CONST '(anon)' type_id=1",
+		"[12] RESTRICT '(anon)' type_id=3",
+		"[13] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
+		"\t'p1' type_id=1\n"
+		"\t'p2' type_id=3",
+		"[14] FUNC 'func' type_id=13 linkage=global",
+		"[15] VAR 'var1' type_id=1, linkage=static",
+		"[16] VAR 'var2' type_id=3, linkage=static",
+		"[17] FLOAT 'float' size=4",
+		"[18] DECL_TAG 'decltag' type_id=11 component_idx=-1",
+		"[19] TYPE_TAG 'typetag' type_id=6",
+		"[20] ENUM64 'e64' encoding=SIGNED size=8 vlen=3\n"
+		"\t'eval1' val=1000\n"
+		"\t'eval2' val=2000\n"
+		"\t'eval3' val=3000",
+		"[21] DATASEC 'datasec1' size=12 vlen=2\n"
+		"\ttype_id=15 offset=0 size=4\n"
+		"\ttype_id=16 offset=4 size=8");
+
+	for (id = 1; id < btf__type_cnt(btf); id++) {
+		struct btf_type *t = btf_type_by_id(btf, id);
+		struct btf_field_iter it_strs, it_ids;
+		int str_idx = 0, id_idx = 0;
+		__u32 *next_str, *next_id;
+
+		if (!ASSERT_OK_PTR(t, "btf_type_by_id"))
+			break;
+		if (!ASSERT_OK(btf_field_iter_init(&it_strs, t, BTF_FIELD_ITER_STRS),
+			       "iter_init_strs"))
+			break;
+		if (!ASSERT_OK(btf_field_iter_init(&it_ids, t, BTF_FIELD_ITER_IDS),
+			       "iter_init_ids"))
+			break;
+		while ((next_str = btf_field_iter_next(&it_strs))) {
+			const char *str = btf__str_by_offset(btf, *next_str);
+
+			if (!ASSERT_OK(strcmp(fields[id].strs[str_idx], str), "field_str_match"))
+				break;
+			str_idx++;
+		}
+		/* ensure no more strings are expected */
+		ASSERT_EQ(fields[id].strs[str_idx], NULL, "field_str_cnt");
+
+		while ((next_id = btf_field_iter_next(&it_ids))) {
+			if (!ASSERT_EQ(*next_id, fields[id].ids[id_idx], "field_id_match"))
+				break;
+			id_idx++;
+		}
+		/* ensure no more ids are expected */
+		ASSERT_EQ(fields[id].ids[id_idx], 0, "field_id_cnt");
+	}
+	btf__free(btf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c b/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c
new file mode 100644
index 000000000000..f66ceccd7029
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_map_in_map.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+
+#include "test_btf_map_in_map.skel.h"
+
+static int duration;
+
+static __u32 bpf_map_id(struct bpf_map *map)
+{
+	struct bpf_map_info info;
+	__u32 info_len = sizeof(info);
+	int err;
+
+	memset(&info, 0, info_len);
+	err = bpf_map_get_info_by_fd(bpf_map__fd(map), &info, &info_len);
+	if (err)
+		return 0;
+	return info.id;
+}
+
+static void test_lookup_update(void)
+{
+	int map1_fd, map2_fd, map3_fd, map4_fd, map5_fd, map1_id, map2_id;
+	int outer_arr_fd, outer_hash_fd, outer_arr_dyn_fd;
+	struct test_btf_map_in_map *skel;
+	int err, key = 0, val, i;
+
+	skel = test_btf_map_in_map__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open&load skeleton\n"))
+		return;
+
+	err = test_btf_map_in_map__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	map1_fd = bpf_map__fd(skel->maps.inner_map1);
+	map2_fd = bpf_map__fd(skel->maps.inner_map2);
+	map3_fd = bpf_map__fd(skel->maps.inner_map3);
+	map4_fd = bpf_map__fd(skel->maps.inner_map4);
+	map5_fd = bpf_map__fd(skel->maps.inner_map5);
+	outer_arr_dyn_fd = bpf_map__fd(skel->maps.outer_arr_dyn);
+	outer_arr_fd = bpf_map__fd(skel->maps.outer_arr);
+	outer_hash_fd = bpf_map__fd(skel->maps.outer_hash);
+
+	/* inner1 = input, inner2 = input + 1, inner3 = input + 2 */
+	bpf_map_update_elem(outer_arr_fd, &key, &map1_fd, 0);
+	bpf_map_update_elem(outer_hash_fd, &key, &map2_fd, 0);
+	bpf_map_update_elem(outer_arr_dyn_fd, &key, &map3_fd, 0);
+	skel->bss->input = 1;
+	usleep(1);
+	bpf_map_lookup_elem(map1_fd, &key, &val);
+	CHECK(val != 1, "inner1", "got %d != exp %d\n", val, 1);
+	bpf_map_lookup_elem(map2_fd, &key, &val);
+	CHECK(val != 2, "inner2", "got %d != exp %d\n", val, 2);
+	bpf_map_lookup_elem(map3_fd, &key, &val);
+	CHECK(val != 3, "inner3", "got %d != exp %d\n", val, 3);
+
+	/* inner2 = input, inner1 = input + 1, inner4 = input + 2 */
+	bpf_map_update_elem(outer_arr_fd, &key, &map2_fd, 0);
+	bpf_map_update_elem(outer_hash_fd, &key, &map1_fd, 0);
+	bpf_map_update_elem(outer_arr_dyn_fd, &key, &map4_fd, 0);
+	skel->bss->input = 3;
+	usleep(1);
+	bpf_map_lookup_elem(map1_fd, &key, &val);
+	CHECK(val != 4, "inner1", "got %d != exp %d\n", val, 4);
+	bpf_map_lookup_elem(map2_fd, &key, &val);
+	CHECK(val != 3, "inner2", "got %d != exp %d\n", val, 3);
+	bpf_map_lookup_elem(map4_fd, &key, &val);
+	CHECK(val != 5, "inner4", "got %d != exp %d\n", val, 5);
+
+	/* inner5 = input + 2 */
+	bpf_map_update_elem(outer_arr_dyn_fd, &key, &map5_fd, 0);
+	skel->bss->input = 5;
+	usleep(1);
+	bpf_map_lookup_elem(map5_fd, &key, &val);
+	CHECK(val != 7, "inner5", "got %d != exp %d\n", val, 7);
+
+	for (i = 0; i < 5; i++) {
+		val = i % 2 ? map1_fd : map2_fd;
+		err = bpf_map_update_elem(outer_hash_fd, &key, &val, 0);
+		if (CHECK_FAIL(err)) {
+			printf("failed to update hash_of_maps on iter #%d\n", i);
+			goto cleanup;
+		}
+		err = bpf_map_update_elem(outer_arr_fd, &key, &val, 0);
+		if (CHECK_FAIL(err)) {
+			printf("failed to update array_of_maps on iter #%d\n", i);
+			goto cleanup;
+		}
+		val = i % 2 ? map4_fd : map5_fd;
+		err = bpf_map_update_elem(outer_arr_dyn_fd, &key, &val, 0);
+		if (CHECK_FAIL(err)) {
+			printf("failed to update array_of_maps (dyn) on iter #%d\n", i);
+			goto cleanup;
+		}
+	}
+
+	map1_id = bpf_map_id(skel->maps.inner_map1);
+	map2_id = bpf_map_id(skel->maps.inner_map2);
+	CHECK(map1_id == 0, "map1_id", "failed to get ID 1\n");
+	CHECK(map2_id == 0, "map2_id", "failed to get ID 2\n");
+
+cleanup:
+	test_btf_map_in_map__destroy(skel);
+}
+
+static void test_diff_size(void)
+{
+	struct test_btf_map_in_map *skel;
+	int err, inner_map_fd, zero = 0;
+
+	skel = test_btf_map_in_map__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open&load skeleton\n"))
+		return;
+
+	inner_map_fd = bpf_map__fd(skel->maps.sockarr_sz2);
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.outer_sockarr), &zero,
+				  &inner_map_fd, 0);
+	CHECK(err, "outer_sockarr inner map size check",
+	      "cannot use a different size inner_map\n");
+
+	inner_map_fd = bpf_map__fd(skel->maps.inner_map_sz2);
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.outer_arr), &zero,
+				  &inner_map_fd, 0);
+	CHECK(!err, "outer_arr inner map size check",
+	      "incorrectly updated with a different size inner_map\n");
+
+	test_btf_map_in_map__destroy(skel);
+}
+
+void test_btf_map_in_map(void)
+{
+	if (test__start_subtest("lookup_update"))
+		test_lookup_update();
+
+	if (test__start_subtest("diff_size"))
+		test_diff_size();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_module.c b/tools/testing/selftests/bpf/prog_tests/btf_module.c
new file mode 100644
index 000000000000..2239d1fe0332
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_module.c
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+static const char *module_name = "bpf_testmod";
+static const char *symbol_name = "bpf_testmod_test_read";
+
+void test_btf_module()
+{
+	struct btf *vmlinux_btf, *module_btf;
+	__s32 type_id;
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(vmlinux_btf, "could not load vmlinux BTF"))
+		return;
+
+	module_btf = btf__load_module_btf(module_name, vmlinux_btf);
+	if (!ASSERT_OK_PTR(module_btf, "could not load module BTF"))
+		goto cleanup;
+
+	type_id = btf__find_by_name(module_btf, symbol_name);
+	ASSERT_GT(type_id, 0, "func not found");
+
+cleanup:
+	btf__free(module_btf);
+	btf__free(vmlinux_btf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
new file mode 100644
index 000000000000..cf15cc3be491
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_skc_cls_ingress.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#define _GNU_SOURCE
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <sched.h>
+#include <net/if.h>
+#include <linux/compiler.h>
+#include <bpf/libbpf.h>
+
+#include "network_helpers.h"
+#include "test_progs.h"
+#include "test_btf_skc_cls_ingress.skel.h"
+
+#define TEST_NS "skc_cls_ingress"
+
+#define BIT(n)		(1 << (n))
+#define TEST_MODE_IPV4	BIT(0)
+#define TEST_MODE_IPV6	BIT(1)
+#define TEST_MODE_DUAL	(TEST_MODE_IPV4 | TEST_MODE_IPV6)
+
+#define SERVER_ADDR_IPV4	"127.0.0.1"
+#define SERVER_ADDR_IPV6	"::1"
+#define SERVER_ADDR_DUAL	"::0"
+/* RFC791, 576 for minimal IPv4 datagram, minus 40 bytes of TCP header */
+#define MIN_IPV4_MSS		536
+
+static struct netns_obj *prepare_netns(struct test_btf_skc_cls_ingress *skel)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_lo, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach,
+		    .prog_fd = bpf_program__fd(skel->progs.cls_ingress));
+	struct netns_obj *ns = NULL;
+
+	ns = netns_new(TEST_NS, true);
+	if (!ASSERT_OK_PTR(ns, "create and join netns"))
+		return ns;
+
+	qdisc_lo.ifindex = if_nametoindex("lo");
+	if (!ASSERT_OK(bpf_tc_hook_create(&qdisc_lo), "qdisc add dev lo clsact"))
+		goto free_ns;
+
+	if (!ASSERT_OK(bpf_tc_attach(&qdisc_lo, &tc_attach),
+		       "filter add dev lo ingress"))
+		goto free_ns;
+
+	/* Ensure 20 bytes options (i.e. in total 40 bytes tcp header) for the
+	 * bpf_tcp_gen_syncookie() helper.
+	 */
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_window_scaling", "1") ||
+	    write_sysctl("/proc/sys/net/ipv4/tcp_timestamps", "1") ||
+	    write_sysctl("/proc/sys/net/ipv4/tcp_sack", "1"))
+		goto free_ns;
+
+	return ns;
+
+free_ns:
+	netns_free(ns);
+	return NULL;
+}
+
+static void reset_test(struct test_btf_skc_cls_ingress *skel)
+{
+	memset(&skel->bss->srv_sa4, 0, sizeof(skel->bss->srv_sa4));
+	memset(&skel->bss->srv_sa6, 0, sizeof(skel->bss->srv_sa6));
+	skel->bss->listen_tp_sport = 0;
+	skel->bss->req_sk_sport = 0;
+	skel->bss->recv_cookie = 0;
+	skel->bss->gen_cookie = 0;
+	skel->bss->linum = 0;
+	skel->bss->mss = 0;
+}
+
+static void print_err_line(struct test_btf_skc_cls_ingress *skel)
+{
+	if (skel->bss->linum)
+		printf("bpf prog error at line %u\n", skel->bss->linum);
+}
+
+static int v6only_true(int fd, void *opts)
+{
+	int mode = true;
+
+	return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &mode, sizeof(mode));
+}
+
+static int v6only_false(int fd, void *opts)
+{
+	int mode = false;
+
+	return setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &mode, sizeof(mode));
+}
+
+static void run_test(struct test_btf_skc_cls_ingress *skel, bool gen_cookies,
+		     int ip_mode)
+{
+	const char *tcp_syncookies = gen_cookies ? "2" : "1";
+	int listen_fd = -1, cli_fd = -1, srv_fd = -1, err;
+	struct network_helper_opts opts = { 0 };
+	struct sockaddr_storage *addr;
+	struct sockaddr_in6 srv_sa6;
+	struct sockaddr_in srv_sa4;
+	socklen_t addr_len;
+	int sock_family;
+	char *srv_addr;
+	int srv_port;
+
+	switch (ip_mode) {
+	case TEST_MODE_IPV4:
+		sock_family = AF_INET;
+		srv_addr = SERVER_ADDR_IPV4;
+		addr = (struct sockaddr_storage *)&srv_sa4;
+		addr_len = sizeof(srv_sa4);
+		break;
+	case TEST_MODE_IPV6:
+		opts.post_socket_cb = v6only_true;
+		sock_family = AF_INET6;
+		srv_addr = SERVER_ADDR_IPV6;
+		addr = (struct sockaddr_storage *)&srv_sa6;
+		addr_len = sizeof(srv_sa6);
+		break;
+	case TEST_MODE_DUAL:
+		opts.post_socket_cb = v6only_false;
+		sock_family = AF_INET6;
+		srv_addr = SERVER_ADDR_DUAL;
+		addr = (struct sockaddr_storage *)&srv_sa6;
+		addr_len = sizeof(srv_sa6);
+		break;
+	default:
+		PRINT_FAIL("Unknown IP mode %d", ip_mode);
+		return;
+	}
+
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_syncookies", tcp_syncookies))
+		return;
+
+	listen_fd = start_server_str(sock_family, SOCK_STREAM, srv_addr,  0,
+				     &opts);
+	if (!ASSERT_OK_FD(listen_fd, "start server"))
+		return;
+
+	err = getsockname(listen_fd, (struct sockaddr *)addr, &addr_len);
+	if (!ASSERT_OK(err, "getsockname(listen_fd)"))
+		goto done;
+
+	switch (ip_mode) {
+	case TEST_MODE_IPV4:
+		memcpy(&skel->bss->srv_sa4, &srv_sa4, sizeof(srv_sa4));
+		srv_port = ntohs(srv_sa4.sin_port);
+		break;
+	case TEST_MODE_IPV6:
+	case TEST_MODE_DUAL:
+		memcpy(&skel->bss->srv_sa6, &srv_sa6, sizeof(srv_sa6));
+		srv_port = ntohs(srv_sa6.sin6_port);
+		break;
+	default:
+		goto done;
+	}
+
+	cli_fd = connect_to_fd(listen_fd, 0);
+	if (!ASSERT_OK_FD(cli_fd, "connect client"))
+		goto done;
+
+	srv_fd = accept(listen_fd, NULL, NULL);
+	if (!ASSERT_OK_FD(srv_fd, "accept connection"))
+		goto done;
+
+	ASSERT_EQ(skel->bss->listen_tp_sport, srv_port, "listen tp src port");
+
+	if (!gen_cookies) {
+		ASSERT_EQ(skel->bss->req_sk_sport, srv_port,
+			  "request socket source port with syncookies disabled");
+		ASSERT_EQ(skel->bss->gen_cookie, 0,
+			  "generated syncookie with syncookies disabled");
+		ASSERT_EQ(skel->bss->recv_cookie, 0,
+			  "received syncookie with syncookies disabled");
+	} else {
+		ASSERT_EQ(skel->bss->req_sk_sport, 0,
+			  "request socket source port with syncookies enabled");
+		ASSERT_NEQ(skel->bss->gen_cookie, 0,
+			   "syncookie properly generated");
+		ASSERT_EQ(skel->bss->gen_cookie, skel->bss->recv_cookie,
+			  "matching syncookies on client and server");
+		ASSERT_GT(skel->bss->mss, MIN_IPV4_MSS,
+			  "MSS in cookie min value");
+		ASSERT_LT(skel->bss->mss, USHRT_MAX,
+			  "MSS in cookie max value");
+	}
+
+done:
+	if (listen_fd != -1)
+		close(listen_fd);
+	if (cli_fd != -1)
+		close(cli_fd);
+	if (srv_fd != -1)
+		close(srv_fd);
+}
+
+static void test_conn_ipv4(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, false, TEST_MODE_IPV4);
+}
+
+static void test_conn_ipv6(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, false, TEST_MODE_IPV6);
+}
+
+static void test_conn_dual(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, false, TEST_MODE_DUAL);
+}
+
+static void test_syncookie_ipv4(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, true, TEST_MODE_IPV4);
+}
+
+static void test_syncookie_ipv6(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, true, TEST_MODE_IPV6);
+}
+
+static void test_syncookie_dual(struct test_btf_skc_cls_ingress *skel)
+{
+	run_test(skel, true, TEST_MODE_DUAL);
+}
+
+struct test {
+	const char *desc;
+	void (*run)(struct test_btf_skc_cls_ingress *skel);
+};
+
+#define DEF_TEST(name) { #name, test_##name }
+static struct test tests[] = {
+	DEF_TEST(conn_ipv4),
+	DEF_TEST(conn_ipv6),
+	DEF_TEST(conn_dual),
+	DEF_TEST(syncookie_ipv4),
+	DEF_TEST(syncookie_ipv6),
+	DEF_TEST(syncookie_dual),
+};
+
+void test_btf_skc_cls_ingress(void)
+{
+	struct test_btf_skc_cls_ingress *skel;
+	struct netns_obj *ns;
+	int i;
+
+	skel = test_btf_skc_cls_ingress__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_btf_skc_cls_ingress__open_and_load"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (!test__start_subtest(tests[i].desc))
+			continue;
+
+		ns = prepare_netns(skel);
+		if (!ns)
+			break;
+
+		tests[i].run(skel);
+
+		print_err_line(skel);
+		reset_test(skel);
+		netns_free(ns);
+	}
+
+	test_btf_skc_cls_ingress__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_split.c b/tools/testing/selftests/bpf/prog_tests/btf_split.c
new file mode 100644
index 000000000000..2d47cad50a51
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_split.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+static char *dump_buf;
+static size_t dump_buf_sz;
+static FILE *dump_buf_file;
+
+static void btf_dump_printf(void *ctx, const char *fmt, va_list args)
+{
+	vfprintf(ctx, fmt, args);
+}
+
+/* Write raw BTF to file, return number of bytes written or negative errno */
+static ssize_t btf_raw_write(struct btf *btf, char *file)
+{
+	ssize_t written = 0;
+	const void *data;
+	__u32 size = 0;
+	int fd, ret;
+
+	fd = mkstemp(file);
+	if (!ASSERT_GE(fd, 0, "create_file"))
+		return -errno;
+
+	data = btf__raw_data(btf, &size);
+	if (!ASSERT_OK_PTR(data, "btf__raw_data")) {
+		close(fd);
+		return -EINVAL;
+	}
+	while (written < size) {
+		ret = write(fd, data + written, size - written);
+		if (!ASSERT_GE(ret, 0, "write succeeded")) {
+			close(fd);
+			return -errno;
+		}
+		written += ret;
+	}
+	close(fd);
+	return written;
+}
+
+static void __test_btf_split(bool multi)
+{
+	char multisplit_btf_file[] = "/tmp/test_btf_multisplit.XXXXXX";
+	char split_btf_file[] = "/tmp/test_btf_split.XXXXXX";
+	char base_btf_file[] = "/tmp/test_btf_base.XXXXXX";
+	ssize_t multisplit_btf_sz = 0, split_btf_sz = 0, base_btf_sz = 0;
+	struct btf_dump *d = NULL;
+	const struct btf_type *t, *ot;
+	struct btf *btf1 = NULL, *btf2 = NULL, *btf3 = NULL;
+	struct btf *btf4 = NULL, *btf5 = NULL, *btf6 = NULL;
+	int str_off, i, err;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "empty_main_btf"))
+		return;
+
+	btf__set_pointer_size(btf1, 8); /* enforce 64-bit arch */
+
+	btf__add_int(btf1, "int", 4, BTF_INT_SIGNED);	/* [1] int */
+	btf__add_ptr(btf1, 1);				/* [2] ptr to int */
+
+	btf__add_struct(btf1, "s1", 4);			/* [3] struct s1 { */
+	btf__add_field(btf1, "f1", 1, 0, 0);		/*      int f1; */
+							/* } */
+
+	btf2 = btf__new_empty_split(btf1);
+	if (!ASSERT_OK_PTR(btf2, "empty_split_btf"))
+		goto cleanup;
+
+	/* pointer size should be "inherited" from main BTF */
+	ASSERT_EQ(btf__pointer_size(btf2), 8, "inherit_ptr_sz");
+
+	str_off = btf__find_str(btf2, "int");
+	ASSERT_NEQ(str_off, -ENOENT, "str_int_missing");
+
+	t = btf__type_by_id(btf2, 1);
+	if (!ASSERT_OK_PTR(t, "int_type"))
+		goto cleanup;
+	ASSERT_EQ(btf_is_int(t), true, "int_kind");
+	ASSERT_STREQ(btf__str_by_offset(btf2, t->name_off), "int", "int_name");
+
+	btf__add_struct(btf2, "s2", 16);		/* [4] struct s2 {	*/
+	btf__add_field(btf2, "f1", 3, 0, 0);		/*      struct s1 f1;	*/
+	btf__add_field(btf2, "f2", 1, 32, 0);		/*      int f2;		*/
+	btf__add_field(btf2, "f3", 2, 64, 0);		/*      int *f3;	*/
+							/* } */
+
+	t = btf__type_by_id(btf1, 4);
+	ASSERT_NULL(t, "split_type_in_main");
+
+	t = btf__type_by_id(btf2, 4);
+	if (!ASSERT_OK_PTR(t, "split_struct_type"))
+		goto cleanup;
+	ASSERT_EQ(btf_is_struct(t), true, "split_struct_kind");
+	ASSERT_EQ(btf_vlen(t), 3, "split_struct_vlen");
+	ASSERT_STREQ(btf__str_by_offset(btf2, t->name_off), "s2", "split_struct_name");
+
+	if (multi) {
+		btf3 = btf__new_empty_split(btf2);
+		if (!ASSERT_OK_PTR(btf3, "multi_split_btf"))
+			goto cleanup;
+	} else {
+		btf3 = btf2;
+	}
+
+	btf__add_union(btf3, "u1", 16);			/* [5] union u1 {	*/
+	btf__add_field(btf3, "f1", 4, 0, 0);		/*	struct s2 f1;	*/
+	btf__add_field(btf3, "uf2", 1, 0, 0);		/*	int f2;		*/
+							/* } */
+
+	if (multi) {
+		t = btf__type_by_id(btf2, 5);
+		ASSERT_NULL(t, "multisplit_type_in_first_split");
+	}
+
+	t = btf__type_by_id(btf3, 5);
+	if (!ASSERT_OK_PTR(t, "split_union_type"))
+		goto cleanup;
+	ASSERT_EQ(btf_is_union(t), true, "split_union_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "split_union_vlen");
+	ASSERT_STREQ(btf__str_by_offset(btf3, t->name_off), "u1", "split_union_name");
+	ASSERT_EQ(btf__type_cnt(btf3), 6, "split_type_cnt");
+
+	t = btf__type_by_id(btf3, 1);
+	if (!ASSERT_OK_PTR(t, "split_base_type"))
+		goto cleanup;
+	ASSERT_EQ(btf_is_int(t), true, "split_base_int");
+	ASSERT_STREQ(btf__str_by_offset(btf3, t->name_off), "int", "split_base_type_name");
+
+	/* BTF-to-C dump of split BTF */
+	dump_buf_file = open_memstream(&dump_buf, &dump_buf_sz);
+	if (!ASSERT_OK_PTR(dump_buf_file, "dump_memstream"))
+		return;
+	d = btf_dump__new(btf3, btf_dump_printf, dump_buf_file, NULL);
+	if (!ASSERT_OK_PTR(d, "btf_dump__new"))
+		goto cleanup;
+	for (i = 1; i < btf__type_cnt(btf3); i++) {
+		err = btf_dump__dump_type(d, i);
+		ASSERT_OK(err, "dump_type_ok");
+	}
+	fflush(dump_buf_file);
+	dump_buf[dump_buf_sz] = 0; /* some libc implementations don't do this */
+	ASSERT_STREQ(dump_buf,
+"struct s1 {\n"
+"	int f1;\n"
+"};\n\n"
+"struct s2 {\n"
+"	struct s1 f1;\n"
+"	int f2;\n"
+"	int *f3;\n"
+"};\n\n"
+"union u1 {\n"
+"	struct s2 f1;\n"
+"	int uf2;\n"
+"};\n\n", "c_dump");
+
+	/* write base, split BTFs to files and ensure parsing succeeds */
+	base_btf_sz = btf_raw_write(btf1, base_btf_file);
+	if (base_btf_sz < 0)
+		goto cleanup;
+	split_btf_sz = btf_raw_write(btf2, split_btf_file);
+	if (split_btf_sz < 0)
+		goto cleanup;
+	btf4 = btf__parse(base_btf_file, NULL);
+	if (!ASSERT_OK_PTR(btf4, "parse_base"))
+		goto cleanup;
+	btf5 = btf__parse_split(split_btf_file, btf4);
+	if (!ASSERT_OK_PTR(btf5, "parse_split"))
+		goto cleanup;
+	if (multi) {
+		multisplit_btf_sz = btf_raw_write(btf3, multisplit_btf_file);
+		if (multisplit_btf_sz < 0)
+			goto cleanup;
+		btf6 = btf__parse_split(multisplit_btf_file, btf5);
+		if (!ASSERT_OK_PTR(btf6, "parse_multisplit"))
+			goto cleanup;
+	} else {
+		btf6 = btf5;
+	}
+
+	if (!ASSERT_EQ(btf__type_cnt(btf3), btf__type_cnt(btf6), "cmp_type_cnt"))
+		goto cleanup;
+
+	/* compare parsed to original BTF */
+	for (i = 1; i < btf__type_cnt(btf6); i++) {
+		t = btf__type_by_id(btf6, i);
+		if (!ASSERT_OK_PTR(t, "type_in_parsed_btf"))
+			goto cleanup;
+		ot = btf__type_by_id(btf3, i);
+		if (!ASSERT_OK_PTR(ot, "type_in_orig_btf"))
+			goto cleanup;
+		if (!ASSERT_EQ(memcmp(t, ot, sizeof(*ot)), 0, "cmp_parsed_orig_btf"))
+			goto cleanup;
+	}
+
+cleanup:
+	if (dump_buf_file)
+		fclose(dump_buf_file);
+	free(dump_buf);
+	btf_dump__free(d);
+	btf__free(btf1);
+	btf__free(btf2);
+	if (btf2 != btf3)
+		btf__free(btf3);
+	btf__free(btf4);
+	btf__free(btf5);
+	if (btf5 != btf6)
+		btf__free(btf6);
+	if (base_btf_sz > 0)
+		unlink(base_btf_file);
+	if (split_btf_sz > 0)
+		unlink(split_btf_file);
+	if (multisplit_btf_sz > 0)
+		unlink(multisplit_btf_file);
+}
+
+void test_btf_split(void)
+{
+	if (test__start_subtest("single_split"))
+		__test_btf_split(false);
+	if (test__start_subtest("multi_split"))
+		__test_btf_split(true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_sysfs.c b/tools/testing/selftests/bpf/prog_tests/btf_sysfs.c
new file mode 100644
index 000000000000..3923e64c4c1d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_sysfs.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/* Copyright (c) 2025 Isovalent */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+static void test_btf_mmap_sysfs(const char *path, struct btf *base)
+{
+	struct stat st;
+	__u64 btf_size, end;
+	void *raw_data = NULL;
+	int fd = -1;
+	long page_size;
+	struct btf *btf = NULL;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	if (!ASSERT_GE(page_size, 0, "get_page_size"))
+		goto cleanup;
+
+	if (!ASSERT_OK(stat(path, &st), "stat_btf"))
+		goto cleanup;
+
+	btf_size = st.st_size;
+	end = (btf_size + page_size - 1) / page_size * page_size;
+
+	fd = open(path, O_RDONLY);
+	if (!ASSERT_GE(fd, 0, "open_btf"))
+		goto cleanup;
+
+	raw_data = mmap(NULL, btf_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (!ASSERT_EQ(raw_data, MAP_FAILED, "mmap_btf_writable"))
+		goto cleanup;
+
+	raw_data = mmap(NULL, btf_size, PROT_READ, MAP_SHARED, fd, 0);
+	if (!ASSERT_EQ(raw_data, MAP_FAILED, "mmap_btf_shared"))
+		goto cleanup;
+
+	raw_data = mmap(NULL, end + 1, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (!ASSERT_EQ(raw_data, MAP_FAILED, "mmap_btf_invalid_size"))
+		goto cleanup;
+
+	raw_data = mmap(NULL, end, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (!ASSERT_OK_PTR(raw_data, "mmap_btf"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(mprotect(raw_data, btf_size, PROT_READ | PROT_WRITE), -1,
+	    "mprotect_writable"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(mprotect(raw_data, btf_size, PROT_READ | PROT_EXEC), -1,
+	    "mprotect_executable"))
+		goto cleanup;
+
+	/* Check padding is zeroed */
+	for (int i = btf_size; i < end; i++) {
+		if (((__u8 *)raw_data)[i] != 0) {
+			PRINT_FAIL("tail of BTF is not zero at page offset %d\n", i);
+			goto cleanup;
+		}
+	}
+
+	btf = btf__new_split(raw_data, btf_size, base);
+	if (!ASSERT_OK_PTR(btf, "parse_btf"))
+		goto cleanup;
+
+cleanup:
+	btf__free(btf);
+	if (raw_data && raw_data != MAP_FAILED)
+		munmap(raw_data, btf_size);
+	if (fd >= 0)
+		close(fd);
+}
+
+void test_btf_sysfs(void)
+{
+	test_btf_mmap_sysfs("/sys/kernel/btf/vmlinux", NULL);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_tag.c b/tools/testing/selftests/bpf/prog_tests/btf_tag.c
new file mode 100644
index 000000000000..071430cd54de
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_tag.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "test_btf_decl_tag.skel.h"
+
+/* struct btf_type_tag_test is referenced in btf_type_tag.skel.h */
+struct btf_type_tag_test {
+        int **p;
+};
+#include "btf_type_tag.skel.h"
+#include "btf_type_tag_user.skel.h"
+#include "btf_type_tag_percpu.skel.h"
+
+static void test_btf_decl_tag(void)
+{
+	struct test_btf_decl_tag *skel;
+
+	skel = test_btf_decl_tag__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "btf_decl_tag"))
+		return;
+
+	if (skel->rodata->skip_tests) {
+		printf("%s:SKIP: btf_decl_tag attribute not supported", __func__);
+		test__skip();
+	}
+
+	test_btf_decl_tag__destroy(skel);
+}
+
+static void test_btf_type_tag(void)
+{
+	struct btf_type_tag *skel;
+
+	skel = btf_type_tag__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "btf_type_tag"))
+		return;
+
+	if (skel->rodata->skip_tests) {
+		printf("%s:SKIP: btf_type_tag attribute not supported", __func__);
+		test__skip();
+	}
+
+	btf_type_tag__destroy(skel);
+}
+
+/* loads vmlinux_btf as well as module_btf. If the caller passes NULL as
+ * module_btf, it will not load module btf.
+ *
+ * Returns 0 on success.
+ * Return -1 On error. In case of error, the loaded btf will be freed and the
+ * input parameters will be set to pointing to NULL.
+ */
+static int load_btfs(struct btf **vmlinux_btf, struct btf **module_btf,
+		     bool needs_vmlinux_tag)
+{
+	const char *module_name = "bpf_testmod";
+	__s32 type_id;
+
+	if (!env.has_testmod) {
+		test__skip();
+		return -1;
+	}
+
+	*vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(*vmlinux_btf, "could not load vmlinux BTF"))
+		return -1;
+
+	if (!needs_vmlinux_tag)
+		goto load_module_btf;
+
+	/* skip the test if the vmlinux does not have __user tags */
+	type_id = btf__find_by_name_kind(*vmlinux_btf, "user", BTF_KIND_TYPE_TAG);
+	if (type_id <= 0) {
+		printf("%s:SKIP: btf_type_tag attribute not in vmlinux btf", __func__);
+		test__skip();
+		goto free_vmlinux_btf;
+	}
+
+load_module_btf:
+	/* skip loading module_btf, if not requested by caller */
+	if (!module_btf)
+		return 0;
+
+	*module_btf = btf__load_module_btf(module_name, *vmlinux_btf);
+	if (!ASSERT_OK_PTR(*module_btf, "could not load module BTF"))
+		goto free_vmlinux_btf;
+
+	/* skip the test if the module does not have __user tags */
+	type_id = btf__find_by_name_kind(*module_btf, "user", BTF_KIND_TYPE_TAG);
+	if (type_id <= 0) {
+		printf("%s:SKIP: btf_type_tag attribute not in %s", __func__, module_name);
+		test__skip();
+		goto free_module_btf;
+	}
+
+	return 0;
+
+free_module_btf:
+	btf__free(*module_btf);
+free_vmlinux_btf:
+	btf__free(*vmlinux_btf);
+
+	*vmlinux_btf = NULL;
+	if (module_btf)
+		*module_btf = NULL;
+	return -1;
+}
+
+static void test_btf_type_tag_mod_user(bool load_test_user1)
+{
+	struct btf *vmlinux_btf = NULL, *module_btf = NULL;
+	struct btf_type_tag_user *skel;
+	int err;
+
+	if (load_btfs(&vmlinux_btf, &module_btf, /*needs_vmlinux_tag=*/false))
+		return;
+
+	skel = btf_type_tag_user__open();
+	if (!ASSERT_OK_PTR(skel, "btf_type_tag_user"))
+		goto cleanup;
+
+	bpf_program__set_autoload(skel->progs.test_sys_getsockname, false);
+	if (load_test_user1)
+		bpf_program__set_autoload(skel->progs.test_user2, false);
+	else
+		bpf_program__set_autoload(skel->progs.test_user1, false);
+
+	err = btf_type_tag_user__load(skel);
+	ASSERT_ERR(err, "btf_type_tag_user");
+
+	btf_type_tag_user__destroy(skel);
+
+cleanup:
+	btf__free(module_btf);
+	btf__free(vmlinux_btf);
+}
+
+static void test_btf_type_tag_vmlinux_user(void)
+{
+	struct btf_type_tag_user *skel;
+	struct btf *vmlinux_btf = NULL;
+	int err;
+
+	if (load_btfs(&vmlinux_btf, NULL, /*needs_vmlinux_tag=*/true))
+		return;
+
+	skel = btf_type_tag_user__open();
+	if (!ASSERT_OK_PTR(skel, "btf_type_tag_user"))
+		goto cleanup;
+
+	bpf_program__set_autoload(skel->progs.test_user2, false);
+	bpf_program__set_autoload(skel->progs.test_user1, false);
+
+	err = btf_type_tag_user__load(skel);
+	ASSERT_ERR(err, "btf_type_tag_user");
+
+	btf_type_tag_user__destroy(skel);
+
+cleanup:
+	btf__free(vmlinux_btf);
+}
+
+static void test_btf_type_tag_mod_percpu(bool load_test_percpu1)
+{
+	struct btf *vmlinux_btf, *module_btf;
+	struct btf_type_tag_percpu *skel;
+	int err;
+
+	if (load_btfs(&vmlinux_btf, &module_btf, /*needs_vmlinux_tag=*/false))
+		return;
+
+	skel = btf_type_tag_percpu__open();
+	if (!ASSERT_OK_PTR(skel, "btf_type_tag_percpu"))
+		goto cleanup;
+
+	bpf_program__set_autoload(skel->progs.test_percpu_load, false);
+	bpf_program__set_autoload(skel->progs.test_percpu_helper, false);
+	if (load_test_percpu1)
+		bpf_program__set_autoload(skel->progs.test_percpu2, false);
+	else
+		bpf_program__set_autoload(skel->progs.test_percpu1, false);
+
+	err = btf_type_tag_percpu__load(skel);
+	ASSERT_ERR(err, "btf_type_tag_percpu");
+
+	btf_type_tag_percpu__destroy(skel);
+
+cleanup:
+	btf__free(module_btf);
+	btf__free(vmlinux_btf);
+}
+
+static void test_btf_type_tag_vmlinux_percpu(bool load_test)
+{
+	struct btf_type_tag_percpu *skel;
+	struct btf *vmlinux_btf = NULL;
+	int err;
+
+	if (load_btfs(&vmlinux_btf, NULL, /*needs_vmlinux_tag=*/true))
+		return;
+
+	skel = btf_type_tag_percpu__open();
+	if (!ASSERT_OK_PTR(skel, "btf_type_tag_percpu"))
+		goto cleanup;
+
+	bpf_program__set_autoload(skel->progs.test_percpu2, false);
+	bpf_program__set_autoload(skel->progs.test_percpu1, false);
+	if (load_test) {
+		bpf_program__set_autoload(skel->progs.test_percpu_helper, false);
+
+		err = btf_type_tag_percpu__load(skel);
+		ASSERT_ERR(err, "btf_type_tag_percpu_load");
+	} else {
+		bpf_program__set_autoload(skel->progs.test_percpu_load, false);
+
+		err = btf_type_tag_percpu__load(skel);
+		ASSERT_OK(err, "btf_type_tag_percpu_helper");
+	}
+
+	btf_type_tag_percpu__destroy(skel);
+
+cleanup:
+	btf__free(vmlinux_btf);
+}
+
+void test_btf_tag(void)
+{
+	if (test__start_subtest("btf_decl_tag"))
+		test_btf_decl_tag();
+	if (test__start_subtest("btf_type_tag"))
+		test_btf_type_tag();
+
+	if (test__start_subtest("btf_type_tag_user_mod1"))
+		test_btf_type_tag_mod_user(true);
+	if (test__start_subtest("btf_type_tag_user_mod2"))
+		test_btf_type_tag_mod_user(false);
+	if (test__start_subtest("btf_type_tag_sys_user_vmlinux"))
+		test_btf_type_tag_vmlinux_user();
+
+	if (test__start_subtest("btf_type_tag_percpu_mod1"))
+		test_btf_type_tag_mod_percpu(true);
+	if (test__start_subtest("btf_type_tag_percpu_mod2"))
+		test_btf_type_tag_mod_percpu(false);
+	if (test__start_subtest("btf_type_tag_percpu_vmlinux_load"))
+		test_btf_type_tag_vmlinux_percpu(true);
+	if (test__start_subtest("btf_type_tag_percpu_vmlinux_helper"))
+		test_btf_type_tag_vmlinux_percpu(false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_write.c b/tools/testing/selftests/bpf/prog_tests/btf_write.c
new file mode 100644
index 000000000000..6e36de1302fc
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/btf_write.c
@@ -0,0 +1,506 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "btf_helpers.h"
+
+static void gen_btf(struct btf *btf)
+{
+	const struct btf_var_secinfo *vi;
+	const struct btf_type *t;
+	const struct btf_member *m;
+	const struct btf_enum64 *v64;
+	const struct btf_enum *v;
+	const struct btf_param *p;
+	int id, err, str_off;
+
+	str_off = btf__find_str(btf, "int");
+	ASSERT_EQ(str_off, -ENOENT, "int_str_missing_off");
+
+	str_off = btf__add_str(btf, "int");
+	ASSERT_EQ(str_off, 1, "int_str_off");
+
+	str_off = btf__find_str(btf, "int");
+	ASSERT_EQ(str_off, 1, "int_str_found_off");
+
+	/* BTF_KIND_INT */
+	id = btf__add_int(btf, "int", 4,  BTF_INT_SIGNED);
+	ASSERT_EQ(id, 1, "int_id");
+
+	t = btf__type_by_id(btf, 1);
+	/* should re-use previously added "int" string */
+	ASSERT_EQ(t->name_off, str_off, "int_name_off");
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "int", "int_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_INT, "int_kind");
+	ASSERT_EQ(t->size, 4, "int_sz");
+	ASSERT_EQ(btf_int_encoding(t), BTF_INT_SIGNED, "int_enc");
+	ASSERT_EQ(btf_int_bits(t), 32, "int_bits");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 1),
+		     "[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED", "raw_dump");
+
+	/* invalid int size */
+	id = btf__add_int(btf, "bad sz int", 7, 0);
+	ASSERT_ERR(id, "int_bad_sz");
+	/* invalid encoding */
+	id = btf__add_int(btf, "bad enc int", 4, 123);
+	ASSERT_ERR(id, "int_bad_enc");
+	/* NULL name */
+	id = btf__add_int(btf, NULL, 4, 0);
+	ASSERT_ERR(id, "int_bad_null_name");
+	/* empty name */
+	id = btf__add_int(btf, "", 4, 0);
+	ASSERT_ERR(id, "int_bad_empty_name");
+
+	/* PTR/CONST/VOLATILE/RESTRICT */
+	id = btf__add_ptr(btf, 1);
+	ASSERT_EQ(id, 2, "ptr_id");
+	t = btf__type_by_id(btf, 2);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_PTR, "ptr_kind");
+	ASSERT_EQ(t->type, 1, "ptr_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 2),
+		     "[2] PTR '(anon)' type_id=1", "raw_dump");
+
+	id = btf__add_const(btf, 5); /* points forward to restrict */
+	ASSERT_EQ(id, 3, "const_id");
+	t = btf__type_by_id(btf, 3);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_CONST, "const_kind");
+	ASSERT_EQ(t->type, 5, "const_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 3),
+		     "[3] CONST '(anon)' type_id=5", "raw_dump");
+
+	id = btf__add_volatile(btf, 3);
+	ASSERT_EQ(id, 4, "volatile_id");
+	t = btf__type_by_id(btf, 4);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_VOLATILE, "volatile_kind");
+	ASSERT_EQ(t->type, 3, "volatile_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 4),
+		     "[4] VOLATILE '(anon)' type_id=3", "raw_dump");
+
+	id = btf__add_restrict(btf, 4);
+	ASSERT_EQ(id, 5, "restrict_id");
+	t = btf__type_by_id(btf, 5);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_RESTRICT, "restrict_kind");
+	ASSERT_EQ(t->type, 4, "restrict_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 5),
+		     "[5] RESTRICT '(anon)' type_id=4", "raw_dump");
+
+	/* ARRAY */
+	id = btf__add_array(btf, 1, 2, 10); /* int *[10] */
+	ASSERT_EQ(id, 6, "array_id");
+	t = btf__type_by_id(btf, 6);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ARRAY, "array_kind");
+	ASSERT_EQ(btf_array(t)->index_type, 1, "array_index_type");
+	ASSERT_EQ(btf_array(t)->type, 2, "array_elem_type");
+	ASSERT_EQ(btf_array(t)->nelems, 10, "array_nelems");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 6),
+		     "[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10", "raw_dump");
+
+	/* STRUCT */
+	err = btf__add_field(btf, "field", 1, 0, 0);
+	ASSERT_ERR(err, "no_struct_field");
+	id = btf__add_struct(btf, "s1", 8);
+	ASSERT_EQ(id, 7, "struct_id");
+	err = btf__add_field(btf, "f1", 1, 0, 0);
+	ASSERT_OK(err, "f1_res");
+	err = btf__add_field(btf, "f2", 1, 32, 16);
+	ASSERT_OK(err, "f2_res");
+
+	t = btf__type_by_id(btf, 7);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "s1", "struct_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_STRUCT, "struct_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "struct_vlen");
+	ASSERT_EQ(btf_kflag(t), true, "struct_kflag");
+	ASSERT_EQ(t->size, 8, "struct_sz");
+	m = btf_members(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f1", "f1_name");
+	ASSERT_EQ(m->type, 1, "f1_type");
+	ASSERT_EQ(btf_member_bit_offset(t, 0), 0, "f1_bit_off");
+	ASSERT_EQ(btf_member_bitfield_size(t, 0), 0, "f1_bit_sz");
+	m = btf_members(t) + 1;
+	ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f2", "f2_name");
+	ASSERT_EQ(m->type, 1, "f2_type");
+	ASSERT_EQ(btf_member_bit_offset(t, 1), 32, "f2_bit_off");
+	ASSERT_EQ(btf_member_bitfield_size(t, 1), 16, "f2_bit_sz");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 7),
+		     "[7] STRUCT 's1' size=8 vlen=2\n"
+		     "\t'f1' type_id=1 bits_offset=0\n"
+		     "\t'f2' type_id=1 bits_offset=32 bitfield_size=16", "raw_dump");
+
+	/* UNION */
+	id = btf__add_union(btf, "u1", 8);
+	ASSERT_EQ(id, 8, "union_id");
+
+	/* invalid, non-zero offset */
+	err = btf__add_field(btf, "field", 1, 1, 0);
+	ASSERT_ERR(err, "no_struct_field");
+
+	err = btf__add_field(btf, "f1", 1, 0, 16);
+	ASSERT_OK(err, "f1_res");
+
+	t = btf__type_by_id(btf, 8);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "u1", "union_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_UNION, "union_kind");
+	ASSERT_EQ(btf_vlen(t), 1, "union_vlen");
+	ASSERT_EQ(btf_kflag(t), true, "union_kflag");
+	ASSERT_EQ(t->size, 8, "union_sz");
+	m = btf_members(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, m->name_off), "f1", "f1_name");
+	ASSERT_EQ(m->type, 1, "f1_type");
+	ASSERT_EQ(btf_member_bit_offset(t, 0), 0, "f1_bit_off");
+	ASSERT_EQ(btf_member_bitfield_size(t, 0), 16, "f1_bit_sz");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 8),
+		     "[8] UNION 'u1' size=8 vlen=1\n"
+		     "\t'f1' type_id=1 bits_offset=0 bitfield_size=16", "raw_dump");
+
+	/* ENUM */
+	id = btf__add_enum(btf, "e1", 4);
+	ASSERT_EQ(id, 9, "enum_id");
+	err = btf__add_enum_value(btf, "v1", 1);
+	ASSERT_OK(err, "v1_res");
+	err = btf__add_enum_value(btf, "v2", 2);
+	ASSERT_OK(err, "v2_res");
+
+	t = btf__type_by_id(btf, 9);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM, "enum_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "enum_vlen");
+	ASSERT_EQ(t->size, 4, "enum_sz");
+	v = btf_enum(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v1", "v1_name");
+	ASSERT_EQ(v->val, 1, "v1_val");
+	v = btf_enum(t) + 1;
+	ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v2", "v2_name");
+	ASSERT_EQ(v->val, 2, "v2_val");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 9),
+		     "[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
+		     "\t'v1' val=1\n"
+		     "\t'v2' val=2", "raw_dump");
+
+	/* FWDs */
+	id = btf__add_fwd(btf, "struct_fwd", BTF_FWD_STRUCT);
+	ASSERT_EQ(id, 10, "struct_fwd_id");
+	t = btf__type_by_id(btf, 10);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "struct_fwd", "fwd_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_FWD, "fwd_kind");
+	ASSERT_EQ(btf_kflag(t), 0, "fwd_kflag");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 10),
+		     "[10] FWD 'struct_fwd' fwd_kind=struct", "raw_dump");
+
+	id = btf__add_fwd(btf, "union_fwd", BTF_FWD_UNION);
+	ASSERT_EQ(id, 11, "union_fwd_id");
+	t = btf__type_by_id(btf, 11);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "union_fwd", "fwd_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_FWD, "fwd_kind");
+	ASSERT_EQ(btf_kflag(t), 1, "fwd_kflag");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 11),
+		     "[11] FWD 'union_fwd' fwd_kind=union", "raw_dump");
+
+	id = btf__add_fwd(btf, "enum_fwd", BTF_FWD_ENUM);
+	ASSERT_EQ(id, 12, "enum_fwd_id");
+	t = btf__type_by_id(btf, 12);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "enum_fwd", "fwd_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM, "enum_fwd_kind");
+	ASSERT_EQ(btf_vlen(t), 0, "enum_fwd_kind");
+	ASSERT_EQ(t->size, 4, "enum_fwd_sz");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 12),
+		     "[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0", "raw_dump");
+
+	/* TYPEDEF */
+	id = btf__add_typedef(btf, "typedef1", 1);
+	ASSERT_EQ(id, 13, "typedef_fwd_id");
+	t = btf__type_by_id(btf, 13);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "typedef1", "typedef_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_TYPEDEF, "typedef_kind");
+	ASSERT_EQ(t->type, 1, "typedef_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 13),
+		     "[13] TYPEDEF 'typedef1' type_id=1", "raw_dump");
+
+	/* FUNC & FUNC_PROTO */
+	id = btf__add_func(btf, "func1", BTF_FUNC_GLOBAL, 15);
+	ASSERT_EQ(id, 14, "func_id");
+	t = btf__type_by_id(btf, 14);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "func1", "func_name");
+	ASSERT_EQ(t->type, 15, "func_type");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_FUNC, "func_kind");
+	ASSERT_EQ(btf_vlen(t), BTF_FUNC_GLOBAL, "func_vlen");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 14),
+		     "[14] FUNC 'func1' type_id=15 linkage=global", "raw_dump");
+
+	id = btf__add_func_proto(btf, 1);
+	ASSERT_EQ(id, 15, "func_proto_id");
+	err = btf__add_func_param(btf, "p1", 1);
+	ASSERT_OK(err, "p1_res");
+	err = btf__add_func_param(btf, "p2", 2);
+	ASSERT_OK(err, "p2_res");
+
+	t = btf__type_by_id(btf, 15);
+	ASSERT_EQ(btf_kind(t), BTF_KIND_FUNC_PROTO, "func_proto_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "func_proto_vlen");
+	ASSERT_EQ(t->type, 1, "func_proto_ret_type");
+	p = btf_params(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, p->name_off), "p1", "p1_name");
+	ASSERT_EQ(p->type, 1, "p1_type");
+	p = btf_params(t) + 1;
+	ASSERT_STREQ(btf__str_by_offset(btf, p->name_off), "p2", "p2_name");
+	ASSERT_EQ(p->type, 2, "p2_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 15),
+		     "[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
+		     "\t'p1' type_id=1\n"
+		     "\t'p2' type_id=2", "raw_dump");
+
+	/* VAR */
+	id = btf__add_var(btf, "var1", BTF_VAR_GLOBAL_ALLOCATED, 1);
+	ASSERT_EQ(id, 16, "var_id");
+	t = btf__type_by_id(btf, 16);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "var1", "var_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_VAR, "var_kind");
+	ASSERT_EQ(t->type, 1, "var_type");
+	ASSERT_EQ(btf_var(t)->linkage, BTF_VAR_GLOBAL_ALLOCATED, "var_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 16),
+		     "[16] VAR 'var1' type_id=1, linkage=global-alloc", "raw_dump");
+
+	/* DATASECT */
+	id = btf__add_datasec(btf, "datasec1", 12);
+	ASSERT_EQ(id, 17, "datasec_id");
+	err = btf__add_datasec_var_info(btf, 1, 4, 8);
+	ASSERT_OK(err, "v1_res");
+
+	t = btf__type_by_id(btf, 17);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "datasec1", "datasec_name");
+	ASSERT_EQ(t->size, 12, "datasec_sz");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_DATASEC, "datasec_kind");
+	ASSERT_EQ(btf_vlen(t), 1, "datasec_vlen");
+	vi = btf_var_secinfos(t) + 0;
+	ASSERT_EQ(vi->type, 1, "v1_type");
+	ASSERT_EQ(vi->offset, 4, "v1_off");
+	ASSERT_EQ(vi->size, 8, "v1_sz");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 17),
+		     "[17] DATASEC 'datasec1' size=12 vlen=1\n"
+		     "\ttype_id=1 offset=4 size=8", "raw_dump");
+
+	/* DECL_TAG */
+	id = btf__add_decl_tag(btf, "tag1", 16, -1);
+	ASSERT_EQ(id, 18, "tag_id");
+	t = btf__type_by_id(btf, 18);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag1", "tag_value");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_DECL_TAG, "tag_kind");
+	ASSERT_EQ(t->type, 16, "tag_type");
+	ASSERT_EQ(btf_decl_tag(t)->component_idx, -1, "tag_component_idx");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 18),
+		     "[18] DECL_TAG 'tag1' type_id=16 component_idx=-1", "raw_dump");
+
+	id = btf__add_decl_tag(btf, "tag2", 14, 1);
+	ASSERT_EQ(id, 19, "tag_id");
+	t = btf__type_by_id(btf, 19);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag2", "tag_value");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_DECL_TAG, "tag_kind");
+	ASSERT_EQ(t->type, 14, "tag_type");
+	ASSERT_EQ(btf_decl_tag(t)->component_idx, 1, "tag_component_idx");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 19),
+		     "[19] DECL_TAG 'tag2' type_id=14 component_idx=1", "raw_dump");
+
+	/* TYPE_TAG */
+	id = btf__add_type_tag(btf, "tag1", 1);
+	ASSERT_EQ(id, 20, "tag_id");
+	t = btf__type_by_id(btf, 20);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "tag1", "tag_value");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_TYPE_TAG, "tag_kind");
+	ASSERT_EQ(t->type, 1, "tag_type");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 20),
+		     "[20] TYPE_TAG 'tag1' type_id=1", "raw_dump");
+
+	/* ENUM64 */
+	id = btf__add_enum64(btf, "e1", 8, true);
+	ASSERT_EQ(id, 21, "enum64_id");
+	err = btf__add_enum64_value(btf, "v1", -1);
+	ASSERT_OK(err, "v1_res");
+	err = btf__add_enum64_value(btf, "v2", 0x123456789); /* 4886718345 */
+	ASSERT_OK(err, "v2_res");
+	t = btf__type_by_id(btf, 21);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "enum64_vlen");
+	ASSERT_EQ(t->size, 8, "enum64_sz");
+	v64 = btf_enum64(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+	ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+	ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+	v64 = btf_enum64(t) + 1;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v2", "v2_name");
+	ASSERT_EQ(v64->val_hi32, 0x1, "v2_val");
+	ASSERT_EQ(v64->val_lo32, 0x23456789, "v2_val");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 21),
+		     "[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		     "\t'v1' val=-1\n"
+		     "\t'v2' val=4886718345", "raw_dump");
+
+	id = btf__add_enum64(btf, "e1", 8, false);
+	ASSERT_EQ(id, 22, "enum64_id");
+	err = btf__add_enum64_value(btf, "v1", 0xffffffffFFFFFFFF); /* 18446744073709551615 */
+	ASSERT_OK(err, "v1_res");
+	t = btf__type_by_id(btf, 22);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+	ASSERT_EQ(btf_vlen(t), 1, "enum64_vlen");
+	ASSERT_EQ(t->size, 8, "enum64_sz");
+	v64 = btf_enum64(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+	ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+	ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 22),
+		     "[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		     "\t'v1' val=18446744073709551615", "raw_dump");
+}
+
+static void test_btf_add()
+{
+	struct btf *btf;
+
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "new_empty"))
+		return;
+
+	gen_btf(btf);
+
+	VALIDATE_RAW_BTF(
+		btf,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] CONST '(anon)' type_id=5",
+		"[4] VOLATILE '(anon)' type_id=3",
+		"[5] RESTRICT '(anon)' type_id=4",
+		"[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10",
+		"[7] STRUCT 's1' size=8 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
+		"[8] UNION 'u1' size=8 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
+		"[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
+		"\t'v1' val=1\n"
+		"\t'v2' val=2",
+		"[10] FWD 'struct_fwd' fwd_kind=struct",
+		"[11] FWD 'union_fwd' fwd_kind=union",
+		"[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
+		"[13] TYPEDEF 'typedef1' type_id=1",
+		"[14] FUNC 'func1' type_id=15 linkage=global",
+		"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
+		"\t'p1' type_id=1\n"
+		"\t'p2' type_id=2",
+		"[16] VAR 'var1' type_id=1, linkage=global-alloc",
+		"[17] DATASEC 'datasec1' size=12 vlen=1\n"
+		"\ttype_id=1 offset=4 size=8",
+		"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
+		"[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
+		"[20] TYPE_TAG 'tag1' type_id=1",
+		"[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615");
+
+	btf__free(btf);
+}
+
+static void test_btf_add_btf()
+{
+	struct btf *btf1 = NULL, *btf2 = NULL;
+	int id;
+
+	btf1 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf1, "btf1"))
+		return;
+
+	btf2 = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf2, "btf2"))
+		goto cleanup;
+
+	gen_btf(btf1);
+	gen_btf(btf2);
+
+	id = btf__add_btf(btf1, btf2);
+	if (!ASSERT_EQ(id, 23, "id"))
+		goto cleanup;
+
+	VALIDATE_RAW_BTF(
+		btf1,
+		"[1] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[2] PTR '(anon)' type_id=1",
+		"[3] CONST '(anon)' type_id=5",
+		"[4] VOLATILE '(anon)' type_id=3",
+		"[5] RESTRICT '(anon)' type_id=4",
+		"[6] ARRAY '(anon)' type_id=2 index_type_id=1 nr_elems=10",
+		"[7] STRUCT 's1' size=8 vlen=2\n"
+		"\t'f1' type_id=1 bits_offset=0\n"
+		"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
+		"[8] UNION 'u1' size=8 vlen=1\n"
+		"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
+		"[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
+		"\t'v1' val=1\n"
+		"\t'v2' val=2",
+		"[10] FWD 'struct_fwd' fwd_kind=struct",
+		"[11] FWD 'union_fwd' fwd_kind=union",
+		"[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
+		"[13] TYPEDEF 'typedef1' type_id=1",
+		"[14] FUNC 'func1' type_id=15 linkage=global",
+		"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
+		"\t'p1' type_id=1\n"
+		"\t'p2' type_id=2",
+		"[16] VAR 'var1' type_id=1, linkage=global-alloc",
+		"[17] DATASEC 'datasec1' size=12 vlen=1\n"
+		"\ttype_id=1 offset=4 size=8",
+		"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
+		"[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
+		"[20] TYPE_TAG 'tag1' type_id=1",
+		"[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615",
+
+		/* types appended from the second BTF */
+		"[23] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[24] PTR '(anon)' type_id=23",
+		"[25] CONST '(anon)' type_id=27",
+		"[26] VOLATILE '(anon)' type_id=25",
+		"[27] RESTRICT '(anon)' type_id=26",
+		"[28] ARRAY '(anon)' type_id=24 index_type_id=23 nr_elems=10",
+		"[29] STRUCT 's1' size=8 vlen=2\n"
+		"\t'f1' type_id=23 bits_offset=0\n"
+		"\t'f2' type_id=23 bits_offset=32 bitfield_size=16",
+		"[30] UNION 'u1' size=8 vlen=1\n"
+		"\t'f1' type_id=23 bits_offset=0 bitfield_size=16",
+		"[31] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
+		"\t'v1' val=1\n"
+		"\t'v2' val=2",
+		"[32] FWD 'struct_fwd' fwd_kind=struct",
+		"[33] FWD 'union_fwd' fwd_kind=union",
+		"[34] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
+		"[35] TYPEDEF 'typedef1' type_id=23",
+		"[36] FUNC 'func1' type_id=37 linkage=global",
+		"[37] FUNC_PROTO '(anon)' ret_type_id=23 vlen=2\n"
+		"\t'p1' type_id=23\n"
+		"\t'p2' type_id=24",
+		"[38] VAR 'var1' type_id=23, linkage=global-alloc",
+		"[39] DATASEC 'datasec1' size=12 vlen=1\n"
+		"\ttype_id=23 offset=4 size=8",
+		"[40] DECL_TAG 'tag1' type_id=38 component_idx=-1",
+		"[41] DECL_TAG 'tag2' type_id=36 component_idx=1",
+		"[42] TYPE_TAG 'tag1' type_id=23",
+		"[43] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[44] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615");
+
+cleanup:
+	btf__free(btf1);
+	btf__free(btf2);
+}
+
+void test_btf_write()
+{
+	if (test__start_subtest("btf_add"))
+		test_btf_add();
+	if (test__start_subtest("btf_add_btf"))
+		test_btf_add_btf();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/build_id.c b/tools/testing/selftests/bpf/prog_tests/build_id.c
new file mode 100644
index 000000000000..aec9c8d6bc96
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/build_id.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+
+#include "test_build_id.skel.h"
+
+static char build_id[BPF_BUILD_ID_SIZE];
+static int build_id_sz;
+
+static void print_stack(struct bpf_stack_build_id *stack, int frame_cnt)
+{
+	int i, j;
+
+	for (i = 0; i < frame_cnt; i++) {
+		printf("FRAME #%02d: ", i);
+		switch (stack[i].status) {
+		case BPF_STACK_BUILD_ID_EMPTY:
+			printf("<EMPTY>\n");
+			break;
+		case BPF_STACK_BUILD_ID_VALID:
+			printf("BUILD ID = ");
+			for (j = 0; j < BPF_BUILD_ID_SIZE; j++)
+				printf("%02hhx", (unsigned)stack[i].build_id[j]);
+			printf(" OFFSET = %llx", (unsigned long long)stack[i].offset);
+			break;
+		case BPF_STACK_BUILD_ID_IP:
+			printf("IP = %llx", (unsigned long long)stack[i].ip);
+			break;
+		default:
+			printf("UNEXPECTED STATUS %d ", stack[i].status);
+			break;
+		}
+		printf("\n");
+	}
+}
+
+static void subtest_nofault(bool build_id_resident)
+{
+	struct test_build_id *skel;
+	struct bpf_stack_build_id *stack;
+	int frame_cnt;
+
+	skel = test_build_id__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->links.uprobe_nofault = bpf_program__attach(skel->progs.uprobe_nofault);
+	if (!ASSERT_OK_PTR(skel->links.uprobe_nofault, "link"))
+		goto cleanup;
+
+	if (build_id_resident)
+		ASSERT_OK(system("./uprobe_multi uprobe-paged-in"), "trigger_uprobe");
+	else
+		ASSERT_OK(system("./uprobe_multi uprobe-paged-out"), "trigger_uprobe");
+
+	if (!ASSERT_GT(skel->bss->res_nofault, 0, "res"))
+		goto cleanup;
+
+	stack = skel->bss->stack_nofault;
+	frame_cnt = skel->bss->res_nofault / sizeof(struct bpf_stack_build_id);
+	if (env.verbosity >= VERBOSE_NORMAL)
+		print_stack(stack, frame_cnt);
+
+	if (build_id_resident) {
+		ASSERT_EQ(stack[0].status, BPF_STACK_BUILD_ID_VALID, "build_id_status");
+		ASSERT_EQ(memcmp(stack[0].build_id, build_id, build_id_sz), 0, "build_id_match");
+	} else {
+		ASSERT_EQ(stack[0].status, BPF_STACK_BUILD_ID_IP, "build_id_status");
+	}
+
+cleanup:
+	test_build_id__destroy(skel);
+}
+
+static void subtest_sleepable(void)
+{
+	struct test_build_id *skel;
+	struct bpf_stack_build_id *stack;
+	int frame_cnt;
+
+	skel = test_build_id__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->links.uprobe_sleepable = bpf_program__attach(skel->progs.uprobe_sleepable);
+	if (!ASSERT_OK_PTR(skel->links.uprobe_sleepable, "link"))
+		goto cleanup;
+
+	/* force build ID to not be paged in */
+	ASSERT_OK(system("./uprobe_multi uprobe-paged-out"), "trigger_uprobe");
+
+	if (!ASSERT_GT(skel->bss->res_sleepable, 0, "res"))
+		goto cleanup;
+
+	stack = skel->bss->stack_sleepable;
+	frame_cnt = skel->bss->res_sleepable / sizeof(struct bpf_stack_build_id);
+	if (env.verbosity >= VERBOSE_NORMAL)
+		print_stack(stack, frame_cnt);
+
+	ASSERT_EQ(stack[0].status, BPF_STACK_BUILD_ID_VALID, "build_id_status");
+	ASSERT_EQ(memcmp(stack[0].build_id, build_id, build_id_sz), 0, "build_id_match");
+
+cleanup:
+	test_build_id__destroy(skel);
+}
+
+void serial_test_build_id(void)
+{
+	build_id_sz = read_build_id("uprobe_multi", build_id, sizeof(build_id));
+	ASSERT_EQ(build_id_sz, BPF_BUILD_ID_SIZE, "parse_build_id");
+
+	if (test__start_subtest("nofault-paged-out"))
+		subtest_nofault(false /* not resident */);
+	if (test__start_subtest("nofault-paged-in"))
+		subtest_nofault(true /* resident */);
+	if (test__start_subtest("sleepable"))
+		subtest_sleepable();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cb_refs.c b/tools/testing/selftests/bpf/prog_tests/cb_refs.c
new file mode 100644
index 000000000000..c40df623a8f7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cb_refs.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bpf/libbpf.h"
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "cb_refs.skel.h"
+
+static char log_buf[1024 * 1024];
+
+struct {
+	const char *prog_name;
+	const char *err_msg;
+} cb_refs_tests[] = {
+	{ "underflow_prog", "must point to scalar, or struct with scalar" },
+	{ "leak_prog", "Possibly NULL pointer passed to helper arg2" },
+	{ "nested_cb", "Unreleased reference id=4 alloc_insn=2" }, /* alloc_insn=2{4,5} */
+	{ "non_cb_transfer_ref", "Unreleased reference id=4 alloc_insn=1" }, /* alloc_insn=1{1,2} */
+};
+
+void test_cb_refs(void)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf,
+						.kernel_log_size = sizeof(log_buf),
+						.kernel_log_level = 1);
+	struct bpf_program *prog;
+	struct cb_refs *skel;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(cb_refs_tests); i++) {
+		LIBBPF_OPTS(bpf_test_run_opts, run_opts,
+			.data_in = &pkt_v4,
+			.data_size_in = sizeof(pkt_v4),
+			.repeat = 1,
+		);
+		skel = cb_refs__open_opts(&opts);
+		if (!ASSERT_OK_PTR(skel, "cb_refs__open_and_load"))
+			return;
+		prog = bpf_object__find_program_by_name(skel->obj, cb_refs_tests[i].prog_name);
+		bpf_program__set_autoload(prog, true);
+		if (!ASSERT_ERR(cb_refs__load(skel), "cb_refs__load"))
+			bpf_prog_test_run_opts(bpf_program__fd(prog), &run_opts);
+		if (!ASSERT_OK_PTR(strstr(log_buf, cb_refs_tests[i].err_msg), "expected error message")) {
+			fprintf(stderr, "Expected: %s\n", cb_refs_tests[i].err_msg);
+			fprintf(stderr, "Verifier: %s\n", log_buf);
+		}
+		cb_refs__destroy(skel);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c b/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c
new file mode 100644
index 000000000000..10224f845568
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cg_storage_multi.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <cgroup_helpers.h>
+#include <network_helpers.h>
+
+#include "progs/cg_storage_multi.h"
+
+#include "cg_storage_multi_egress_only.skel.h"
+#include "cg_storage_multi_isolated.skel.h"
+#include "cg_storage_multi_shared.skel.h"
+
+#define PARENT_CGROUP "/cgroup_storage"
+#define CHILD_CGROUP "/cgroup_storage/child"
+
+static int duration;
+
+static bool assert_storage(struct bpf_map *map, const void *key,
+			   struct cgroup_value *expected)
+{
+	struct cgroup_value value;
+	int map_fd;
+
+	map_fd = bpf_map__fd(map);
+
+	if (CHECK(bpf_map_lookup_elem(map_fd, key, &value) < 0,
+		  "map-lookup", "errno %d", errno))
+		return true;
+	if (CHECK(memcmp(&value, expected, sizeof(struct cgroup_value)),
+		  "assert-storage", "storages differ"))
+		return true;
+
+	return false;
+}
+
+static bool assert_storage_noexist(struct bpf_map *map, const void *key)
+{
+	struct cgroup_value value;
+	int map_fd;
+
+	map_fd = bpf_map__fd(map);
+
+	if (CHECK(bpf_map_lookup_elem(map_fd, key, &value) == 0,
+		  "map-lookup", "succeeded, expected ENOENT"))
+		return true;
+	if (CHECK(errno != ENOENT,
+		  "map-lookup", "errno %d, expected ENOENT", errno))
+		return true;
+
+	return false;
+}
+
+static bool connect_send(const char *cgroup_path)
+{
+	int server_fd = -1, client_fd = -1;
+	char message[] = "message";
+	bool res = true;
+
+	if (join_cgroup(cgroup_path))
+		goto out_clean;
+
+	server_fd = start_server(AF_INET, SOCK_DGRAM, NULL, 0, 0);
+	if (server_fd < 0)
+		goto out_clean;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (client_fd < 0)
+		goto out_clean;
+
+	if (send(client_fd, &message, sizeof(message), 0) < 0)
+		goto out_clean;
+
+	if (read(server_fd, &message, sizeof(message)) < 0)
+		goto out_clean;
+
+	res = false;
+
+out_clean:
+	close(client_fd);
+	close(server_fd);
+	return res;
+}
+
+static void test_egress_only(int parent_cgroup_fd, int child_cgroup_fd)
+{
+	struct cg_storage_multi_egress_only *obj;
+	struct cgroup_value expected_cgroup_value;
+	struct bpf_cgroup_storage_key key;
+	struct bpf_link *parent_link = NULL, *child_link = NULL;
+	bool err;
+
+	key.attach_type = BPF_CGROUP_INET_EGRESS;
+
+	obj = cg_storage_multi_egress_only__open_and_load();
+	if (CHECK(!obj, "skel-load", "errno %d", errno))
+		return;
+
+	/* Attach to parent cgroup, trigger packet from child.
+	 * Assert that there is only one run and in that run the storage is
+	 * parent cgroup's storage.
+	 * Also assert that child cgroup's storage does not exist
+	 */
+	parent_link = bpf_program__attach_cgroup(obj->progs.egress,
+						 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_link, "parent-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "first-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 1,
+		  "first-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(PARENT_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 1 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(CHILD_CGROUP);
+	if (assert_storage_noexist(obj->maps.cgroup_storage, &key))
+		goto close_bpf_object;
+
+	/* Attach to parent and child cgroup, trigger packet from child.
+	 * Assert that there are two additional runs, one that run with parent
+	 * cgroup's storage and one with child cgroup's storage.
+	 */
+	child_link = bpf_program__attach_cgroup(obj->progs.egress,
+						child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_link, "child-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "second-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 3,
+		  "second-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(PARENT_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 2 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(CHILD_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 1 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(parent_link);
+	bpf_link__destroy(child_link);
+
+	cg_storage_multi_egress_only__destroy(obj);
+}
+
+static void test_isolated(int parent_cgroup_fd, int child_cgroup_fd)
+{
+	struct cg_storage_multi_isolated *obj;
+	struct cgroup_value expected_cgroup_value;
+	struct bpf_cgroup_storage_key key;
+	struct bpf_link *parent_egress1_link = NULL, *parent_egress2_link = NULL;
+	struct bpf_link *child_egress1_link = NULL, *child_egress2_link = NULL;
+	struct bpf_link *parent_ingress_link = NULL, *child_ingress_link = NULL;
+	bool err;
+
+	obj = cg_storage_multi_isolated__open_and_load();
+	if (CHECK(!obj, "skel-load", "errno %d", errno))
+		return;
+
+	/* Attach to parent cgroup, trigger packet from child.
+	 * Assert that there is three runs, two with parent cgroup egress and
+	 * one with parent cgroup ingress, stored in separate parent storages.
+	 * Also assert that child cgroup's storages does not exist
+	 */
+	parent_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_egress1_link, "parent-egress1-cg-attach"))
+		goto close_bpf_object;
+	parent_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_egress2_link, "parent-egress2-cg-attach"))
+		goto close_bpf_object;
+	parent_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_ingress_link, "parent-ingress-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "first-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 3,
+		  "first-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(PARENT_CGROUP);
+	key.attach_type = BPF_CGROUP_INET_EGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 2 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.attach_type = BPF_CGROUP_INET_INGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .ingress_pkts = 1 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(CHILD_CGROUP);
+	key.attach_type = BPF_CGROUP_INET_EGRESS;
+	if (assert_storage_noexist(obj->maps.cgroup_storage, &key))
+		goto close_bpf_object;
+	key.attach_type = BPF_CGROUP_INET_INGRESS;
+	if (assert_storage_noexist(obj->maps.cgroup_storage, &key))
+		goto close_bpf_object;
+
+	/* Attach to parent and child cgroup, trigger packet from child.
+	 * Assert that there is six additional runs, parent cgroup egresses and
+	 * ingress, child cgroup egresses and ingress.
+	 * Assert that egress and ingress storages are separate.
+	 */
+	child_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_egress1_link, "child-egress1-cg-attach"))
+		goto close_bpf_object;
+	child_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_egress2_link, "child-egress2-cg-attach"))
+		goto close_bpf_object;
+	child_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_ingress_link, "child-ingress-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "second-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 9,
+		  "second-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(PARENT_CGROUP);
+	key.attach_type = BPF_CGROUP_INET_EGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 4 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.attach_type = BPF_CGROUP_INET_INGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .ingress_pkts = 2 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.cgroup_inode_id = get_cgroup_id(CHILD_CGROUP);
+	key.attach_type = BPF_CGROUP_INET_EGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .egress_pkts = 2 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key.attach_type = BPF_CGROUP_INET_INGRESS;
+	expected_cgroup_value = (struct cgroup_value) { .ingress_pkts = 1 };
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(parent_egress1_link);
+	bpf_link__destroy(parent_egress2_link);
+	bpf_link__destroy(parent_ingress_link);
+	bpf_link__destroy(child_egress1_link);
+	bpf_link__destroy(child_egress2_link);
+	bpf_link__destroy(child_ingress_link);
+
+	cg_storage_multi_isolated__destroy(obj);
+}
+
+static void test_shared(int parent_cgroup_fd, int child_cgroup_fd)
+{
+	struct cg_storage_multi_shared *obj;
+	struct cgroup_value expected_cgroup_value;
+	__u64 key;
+	struct bpf_link *parent_egress1_link = NULL, *parent_egress2_link = NULL;
+	struct bpf_link *child_egress1_link = NULL, *child_egress2_link = NULL;
+	struct bpf_link *parent_ingress_link = NULL, *child_ingress_link = NULL;
+	bool err;
+
+	obj = cg_storage_multi_shared__open_and_load();
+	if (CHECK(!obj, "skel-load", "errno %d", errno))
+		return;
+
+	/* Attach to parent cgroup, trigger packet from child.
+	 * Assert that there is three runs, two with parent cgroup egress and
+	 * one with parent cgroup ingress.
+	 * Also assert that child cgroup's storage does not exist
+	 */
+	parent_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_egress1_link, "parent-egress1-cg-attach"))
+		goto close_bpf_object;
+	parent_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_egress2_link, "parent-egress2-cg-attach"))
+		goto close_bpf_object;
+	parent_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
+							 parent_cgroup_fd);
+	if (!ASSERT_OK_PTR(parent_ingress_link, "parent-ingress-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "first-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 3,
+		  "first-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key = get_cgroup_id(PARENT_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) {
+		.egress_pkts = 2,
+		.ingress_pkts = 1,
+	};
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key = get_cgroup_id(CHILD_CGROUP);
+	if (assert_storage_noexist(obj->maps.cgroup_storage, &key))
+		goto close_bpf_object;
+
+	/* Attach to parent and child cgroup, trigger packet from child.
+	 * Assert that there is six additional runs, parent cgroup egresses and
+	 * ingress, child cgroup egresses and ingress.
+	 */
+	child_egress1_link = bpf_program__attach_cgroup(obj->progs.egress1,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_egress1_link, "child-egress1-cg-attach"))
+		goto close_bpf_object;
+	child_egress2_link = bpf_program__attach_cgroup(obj->progs.egress2,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_egress2_link, "child-egress2-cg-attach"))
+		goto close_bpf_object;
+	child_ingress_link = bpf_program__attach_cgroup(obj->progs.ingress,
+							child_cgroup_fd);
+	if (!ASSERT_OK_PTR(child_ingress_link, "child-ingress-cg-attach"))
+		goto close_bpf_object;
+	err = connect_send(CHILD_CGROUP);
+	if (CHECK(err, "second-connect-send", "errno %d", errno))
+		goto close_bpf_object;
+	if (CHECK(obj->bss->invocations != 9,
+		  "second-invoke", "invocations=%d", obj->bss->invocations))
+		goto close_bpf_object;
+	key = get_cgroup_id(PARENT_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) {
+		.egress_pkts = 4,
+		.ingress_pkts = 2,
+	};
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+	key = get_cgroup_id(CHILD_CGROUP);
+	expected_cgroup_value = (struct cgroup_value) {
+		.egress_pkts = 2,
+		.ingress_pkts = 1,
+	};
+	if (assert_storage(obj->maps.cgroup_storage,
+			   &key, &expected_cgroup_value))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(parent_egress1_link);
+	bpf_link__destroy(parent_egress2_link);
+	bpf_link__destroy(parent_ingress_link);
+	bpf_link__destroy(child_egress1_link);
+	bpf_link__destroy(child_egress2_link);
+	bpf_link__destroy(child_ingress_link);
+
+	cg_storage_multi_shared__destroy(obj);
+}
+
+void serial_test_cg_storage_multi(void)
+{
+	int parent_cgroup_fd = -1, child_cgroup_fd = -1;
+
+	parent_cgroup_fd = test__join_cgroup(PARENT_CGROUP);
+	if (CHECK(parent_cgroup_fd < 0, "cg-create-parent", "errno %d", errno))
+		goto close_cgroup_fd;
+	child_cgroup_fd = create_and_get_cgroup(CHILD_CGROUP);
+	if (CHECK(child_cgroup_fd < 0, "cg-create-child", "errno %d", errno))
+		goto close_cgroup_fd;
+
+	if (test__start_subtest("egress_only"))
+		test_egress_only(parent_cgroup_fd, child_cgroup_fd);
+
+	if (test__start_subtest("isolated"))
+		test_isolated(parent_cgroup_fd, child_cgroup_fd);
+
+	if (test__start_subtest("shared"))
+		test_shared(parent_cgroup_fd, child_cgroup_fd);
+
+close_cgroup_fd:
+	close(child_cgroup_fd);
+	close(parent_cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c b/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c
new file mode 100644
index 000000000000..25332e596750
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup1_hierarchy.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "test_cgroup1_hierarchy.skel.h"
+
+static void bpf_cgroup1(struct test_cgroup1_hierarchy *skel)
+{
+	struct bpf_link *lsm_link, *fentry_link;
+	int err;
+
+	/* Attach LSM prog first */
+	lsm_link = bpf_program__attach_lsm(skel->progs.lsm_run);
+	if (!ASSERT_OK_PTR(lsm_link, "lsm_attach"))
+		return;
+
+	/* LSM prog will be triggered when attaching fentry */
+	fentry_link = bpf_program__attach_trace(skel->progs.fentry_run);
+	ASSERT_NULL(fentry_link, "fentry_attach_fail");
+
+	err = bpf_link__destroy(lsm_link);
+	ASSERT_OK(err, "destroy_lsm");
+}
+
+static void bpf_cgroup1_sleepable(struct test_cgroup1_hierarchy *skel)
+{
+	struct bpf_link *lsm_link, *fentry_link;
+	int err;
+
+	/* Attach LSM prog first */
+	lsm_link = bpf_program__attach_lsm(skel->progs.lsm_s_run);
+	if (!ASSERT_OK_PTR(lsm_link, "lsm_attach"))
+		return;
+
+	/* LSM prog will be triggered when attaching fentry */
+	fentry_link = bpf_program__attach_trace(skel->progs.fentry_run);
+	ASSERT_NULL(fentry_link, "fentry_attach_fail");
+
+	err = bpf_link__destroy(lsm_link);
+	ASSERT_OK(err, "destroy_lsm");
+}
+
+static void bpf_cgroup1_invalid_id(struct test_cgroup1_hierarchy *skel)
+{
+	struct bpf_link *lsm_link, *fentry_link;
+	int err;
+
+	/* Attach LSM prog first */
+	lsm_link = bpf_program__attach_lsm(skel->progs.lsm_run);
+	if (!ASSERT_OK_PTR(lsm_link, "lsm_attach"))
+		return;
+
+	/* LSM prog will be triggered when attaching fentry */
+	fentry_link = bpf_program__attach_trace(skel->progs.fentry_run);
+	if (!ASSERT_OK_PTR(fentry_link, "fentry_attach_success"))
+		goto cleanup;
+
+	err = bpf_link__destroy(fentry_link);
+	ASSERT_OK(err, "destroy_lsm");
+
+cleanup:
+	err = bpf_link__destroy(lsm_link);
+	ASSERT_OK(err, "destroy_fentry");
+}
+
+void test_cgroup1_hierarchy(void)
+{
+	struct test_cgroup1_hierarchy *skel;
+	__u64 current_cgid;
+	int hid, err;
+
+	skel = test_cgroup1_hierarchy__open();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	skel->bss->target_pid = getpid();
+
+	err = bpf_program__set_attach_target(skel->progs.fentry_run, 0, "bpf_fentry_test1");
+	if (!ASSERT_OK(err, "fentry_set_target"))
+		goto destroy;
+
+	err = test_cgroup1_hierarchy__load(skel);
+	if (!ASSERT_OK(err, "load"))
+		goto destroy;
+
+	/* Setup cgroup1 hierarchy */
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "setup_cgroup_environment"))
+		goto destroy;
+	err = setup_classid_environment();
+	if (!ASSERT_OK(err, "setup_classid_environment"))
+		goto cleanup_cgroup;
+
+	err = join_classid();
+	if (!ASSERT_OK(err, "join_cgroup1"))
+		goto cleanup;
+
+	current_cgid = get_classid_cgroup_id();
+	if (!ASSERT_GE(current_cgid, 0, "cgroup1 id"))
+		goto cleanup;
+
+	hid = get_cgroup1_hierarchy_id("net_cls");
+	if (!ASSERT_GE(hid, 0, "cgroup1 id"))
+		goto cleanup;
+	skel->bss->target_hid = hid;
+
+	if (test__start_subtest("test_cgroup1_hierarchy")) {
+		skel->bss->target_ancestor_cgid = current_cgid;
+		bpf_cgroup1(skel);
+	}
+
+	if (test__start_subtest("test_root_cgid")) {
+		skel->bss->target_ancestor_cgid = 1;
+		skel->bss->target_ancestor_level = 0;
+		bpf_cgroup1(skel);
+	}
+
+	if (test__start_subtest("test_invalid_level")) {
+		skel->bss->target_ancestor_cgid = 1;
+		skel->bss->target_ancestor_level = 1;
+		bpf_cgroup1_invalid_id(skel);
+	}
+
+	if (test__start_subtest("test_invalid_cgid")) {
+		skel->bss->target_ancestor_cgid = 0;
+		bpf_cgroup1_invalid_id(skel);
+	}
+
+	if (test__start_subtest("test_invalid_hid")) {
+		skel->bss->target_ancestor_cgid = 1;
+		skel->bss->target_ancestor_level = 0;
+		skel->bss->target_hid = -1;
+		bpf_cgroup1_invalid_id(skel);
+	}
+
+	if (test__start_subtest("test_invalid_cgrp_name")) {
+		skel->bss->target_hid = get_cgroup1_hierarchy_id("net_cl");
+		skel->bss->target_ancestor_cgid = current_cgid;
+		bpf_cgroup1_invalid_id(skel);
+	}
+
+	if (test__start_subtest("test_invalid_cgrp_name2")) {
+		skel->bss->target_hid = get_cgroup1_hierarchy_id("net_cls,");
+		skel->bss->target_ancestor_cgid = current_cgid;
+		bpf_cgroup1_invalid_id(skel);
+	}
+
+	if (test__start_subtest("test_sleepable_prog")) {
+		skel->bss->target_hid = hid;
+		skel->bss->target_ancestor_cgid = current_cgid;
+		bpf_cgroup1_sleepable(skel);
+	}
+
+cleanup:
+	cleanup_classid_environment();
+cleanup_cgroup:
+	cleanup_cgroup_environment();
+destroy:
+	test_cgroup1_hierarchy__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c b/tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c
new file mode 100644
index 000000000000..3f9ffdf71343
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_ancestor.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "cgroup_helpers.h"
+#include "cgroup_ancestor.skel.h"
+
+#define CGROUP_PATH "/skb_cgroup_test"
+#define TEST_NS "cgroup_ancestor_ns"
+#define NUM_CGROUP_LEVELS 4
+#define WAIT_AUTO_IP_MAX_ATTEMPT 10
+#define DST_ADDR "::1"
+#define DST_PORT 1234
+#define MAX_ASSERT_NAME 32
+
+struct test_data {
+	struct cgroup_ancestor *skel;
+	struct bpf_tc_hook qdisc;
+	struct bpf_tc_opts tc_attach;
+	struct nstoken *ns;
+};
+
+static int send_datagram(void)
+{
+	unsigned char buf[] = "some random test data";
+	struct sockaddr_in6 addr = { .sin6_family = AF_INET6,
+				     .sin6_port = htons(DST_PORT), };
+	int sock, n;
+
+	if (!ASSERT_EQ(inet_pton(AF_INET6, DST_ADDR, &addr.sin6_addr), 1,
+		       "inet_pton"))
+		return -1;
+
+	sock = socket(AF_INET6, SOCK_DGRAM, 0);
+	if (!ASSERT_OK_FD(sock, "create socket"))
+		return sock;
+
+	if (!ASSERT_OK(connect(sock, (struct sockaddr *)&addr, sizeof(addr)), "connect")) {
+		close(sock);
+		return -1;
+	}
+
+	n = sendto(sock, buf, sizeof(buf), 0, (const struct sockaddr *)&addr,
+		   sizeof(addr));
+	close(sock);
+	return ASSERT_EQ(n, sizeof(buf), "send data") ? 0 : -1;
+}
+
+static int setup_network(struct test_data *t)
+{
+	SYS(fail, "ip netns add %s", TEST_NS);
+	t->ns = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(t->ns, "open netns"))
+		goto cleanup_ns;
+
+	SYS(close_ns, "ip link set lo up");
+
+	memset(&t->qdisc, 0, sizeof(t->qdisc));
+	t->qdisc.sz = sizeof(t->qdisc);
+	t->qdisc.attach_point = BPF_TC_EGRESS;
+	t->qdisc.ifindex = if_nametoindex("lo");
+	if (!ASSERT_NEQ(t->qdisc.ifindex, 0, "if_nametoindex"))
+		goto close_ns;
+	if (!ASSERT_OK(bpf_tc_hook_create(&t->qdisc), "qdisc add"))
+		goto close_ns;
+
+	memset(&t->tc_attach, 0, sizeof(t->tc_attach));
+	t->tc_attach.sz = sizeof(t->tc_attach);
+	t->tc_attach.prog_fd = bpf_program__fd(t->skel->progs.log_cgroup_id);
+	if (!ASSERT_OK(bpf_tc_attach(&t->qdisc, &t->tc_attach), "filter add"))
+		goto cleanup_qdisc;
+
+	return 0;
+
+cleanup_qdisc:
+	bpf_tc_hook_destroy(&t->qdisc);
+close_ns:
+	close_netns(t->ns);
+cleanup_ns:
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+fail:
+	return 1;
+}
+
+static void cleanup_network(struct test_data *t)
+{
+	bpf_tc_detach(&t->qdisc, &t->tc_attach);
+	bpf_tc_hook_destroy(&t->qdisc);
+	close_netns(t->ns);
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+}
+
+static void check_ancestors_ids(struct test_data *t)
+{
+	__u64 expected_ids[NUM_CGROUP_LEVELS];
+	char assert_name[MAX_ASSERT_NAME];
+	__u32 level;
+
+	expected_ids[0] = get_cgroup_id("/.."); /* root cgroup */
+	expected_ids[1] = get_cgroup_id("");
+	expected_ids[2] = get_cgroup_id(CGROUP_PATH);
+	expected_ids[3] = 0; /* non-existent cgroup */
+
+	for (level = 0; level < NUM_CGROUP_LEVELS; level++) {
+		snprintf(assert_name, MAX_ASSERT_NAME,
+			 "ancestor id at level %d", level);
+		ASSERT_EQ(t->skel->bss->cgroup_ids[level], expected_ids[level],
+			  assert_name);
+	}
+}
+
+void test_cgroup_ancestor(void)
+{
+	struct test_data t;
+	int cgroup_fd;
+
+	t.skel = cgroup_ancestor__open_and_load();
+	if (!ASSERT_OK_PTR(t.skel, "open and load"))
+		return;
+
+	t.skel->bss->dport = htons(DST_PORT);
+	cgroup_fd = cgroup_setup_and_join(CGROUP_PATH);
+	if (cgroup_fd < 0)
+		goto cleanup_progs;
+
+	if (setup_network(&t))
+		goto cleanup_cgroups;
+
+	if (send_datagram())
+		goto cleanup_network;
+
+	check_ancestors_ids(&t);
+
+cleanup_network:
+	cleanup_network(&t);
+cleanup_cgroups:
+	close(cgroup_fd);
+	cleanup_cgroup_environment();
+cleanup_progs:
+	cgroup_ancestor__destroy(t.skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_attach_autodetach.c b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_autodetach.c
new file mode 100644
index 000000000000..9367bd2f0ae1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_autodetach.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "cgroup_helpers.h"
+
+#define PING_CMD	"ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+static char bpf_log_buf[BPF_LOG_BUF_SIZE];
+
+static int prog_load(void)
+{
+	struct bpf_insn prog[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 1), /* r0 = 1 */
+		BPF_EXIT_INSN(),
+	};
+	size_t insns_cnt = ARRAY_SIZE(prog);
+
+	return bpf_test_load_program(BPF_PROG_TYPE_CGROUP_SKB,
+			       prog, insns_cnt, "GPL", 0,
+			       bpf_log_buf, BPF_LOG_BUF_SIZE);
+}
+
+void serial_test_cgroup_attach_autodetach(void)
+{
+	__u32 duration = 0, prog_cnt = 4, attach_flags;
+	int allow_prog[2] = {-1};
+	__u32 prog_ids[2] = {0};
+	void *ptr = NULL;
+	int cg = 0, i;
+	int attempts;
+
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++) {
+		allow_prog[i] = prog_load();
+		if (CHECK(allow_prog[i] < 0, "prog_load",
+			  "verifier output:\n%s\n-------\n", bpf_log_buf))
+			goto err;
+	}
+
+	if (CHECK_FAIL(setup_cgroup_environment()))
+		goto err;
+
+	/* create a cgroup, attach two programs and remember their ids */
+	cg = create_and_get_cgroup("/cg_autodetach");
+	if (CHECK_FAIL(cg < 0))
+		goto err;
+
+	if (CHECK_FAIL(join_cgroup("/cg_autodetach")))
+		goto err;
+
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++)
+		if (CHECK(bpf_prog_attach(allow_prog[i], cg,
+					  BPF_CGROUP_INET_EGRESS,
+					  BPF_F_ALLOW_MULTI),
+			  "prog_attach", "prog[%d], errno=%d\n", i, errno))
+			goto err;
+
+	/* make sure that programs are attached and run some traffic */
+	if (CHECK(bpf_prog_query(cg, BPF_CGROUP_INET_EGRESS, 0, &attach_flags,
+				 prog_ids, &prog_cnt),
+		  "prog_query", "errno=%d\n", errno))
+		goto err;
+	if (CHECK_FAIL(system(PING_CMD)))
+		goto err;
+
+	/* allocate some memory (4Mb) to pin the original cgroup */
+	ptr = malloc(4 * (1 << 20));
+	if (CHECK_FAIL(!ptr))
+		goto err;
+
+	/* close programs and cgroup fd */
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++) {
+		close(allow_prog[i]);
+		allow_prog[i] = -1;
+	}
+
+	close(cg);
+	cg = 0;
+
+	/* leave the cgroup and remove it. don't detach programs */
+	cleanup_cgroup_environment();
+
+	/* wait for the asynchronous auto-detachment.
+	 * wait for no more than 5 sec and give up.
+	 */
+	for (i = 0; i < ARRAY_SIZE(prog_ids); i++) {
+		for (attempts = 5; attempts >= 0; attempts--) {
+			int fd = bpf_prog_get_fd_by_id(prog_ids[i]);
+
+			if (fd < 0)
+				break;
+
+			/* don't leave the fd open */
+			close(fd);
+
+			if (CHECK_FAIL(!attempts))
+				goto err;
+
+			sleep(1);
+		}
+	}
+
+err:
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++)
+		if (allow_prog[i] >= 0)
+			close(allow_prog[i]);
+	if (cg)
+		close(cg);
+	free(ptr);
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
new file mode 100644
index 000000000000..db0b7bac78d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_multi.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "cgroup_helpers.h"
+
+#define PING_CMD	"ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+static char bpf_log_buf[BPF_LOG_BUF_SIZE];
+
+static int map_fd = -1;
+
+static int prog_load_cnt(int verdict, int val)
+{
+	int cgroup_storage_fd, percpu_cgroup_storage_fd;
+
+	if (map_fd < 0)
+		map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 8, 1, NULL);
+	if (map_fd < 0) {
+		printf("failed to create map '%s'\n", strerror(errno));
+		return -1;
+	}
+
+	cgroup_storage_fd = bpf_map_create(BPF_MAP_TYPE_CGROUP_STORAGE, NULL,
+				sizeof(struct bpf_cgroup_storage_key), 8, 0, NULL);
+	if (cgroup_storage_fd < 0) {
+		printf("failed to create map '%s'\n", strerror(errno));
+		return -1;
+	}
+
+	percpu_cgroup_storage_fd = bpf_map_create(
+		BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE, NULL,
+		sizeof(struct bpf_cgroup_storage_key), 8, 0, NULL);
+	if (percpu_cgroup_storage_fd < 0) {
+		printf("failed to create map '%s'\n", strerror(errno));
+		return -1;
+	}
+
+	struct bpf_insn prog[] = {
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4), /* *(u32 *)(fp - 4) = r0 */
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), /* r2 = fp - 4 */
+		BPF_LD_MAP_FD(BPF_REG_1, map_fd),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_1, val), /* r1 = 1 */
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD, BPF_REG_0, BPF_REG_1, 0),
+
+		BPF_LD_MAP_FD(BPF_REG_1, cgroup_storage_fd),
+		BPF_MOV64_IMM(BPF_REG_2, 0),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+		BPF_MOV64_IMM(BPF_REG_1, val),
+		BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_0, BPF_REG_1, 0),
+
+		BPF_LD_MAP_FD(BPF_REG_1, percpu_cgroup_storage_fd),
+		BPF_MOV64_IMM(BPF_REG_2, 0),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_local_storage),
+		BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 0x1),
+		BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0),
+
+		BPF_MOV64_IMM(BPF_REG_0, verdict), /* r0 = verdict */
+		BPF_EXIT_INSN(),
+	};
+	size_t insns_cnt = ARRAY_SIZE(prog);
+	int ret;
+
+	ret = bpf_test_load_program(BPF_PROG_TYPE_CGROUP_SKB,
+			       prog, insns_cnt, "GPL", 0,
+			       bpf_log_buf, BPF_LOG_BUF_SIZE);
+
+	close(cgroup_storage_fd);
+	return ret;
+}
+
+void serial_test_cgroup_attach_multi(void)
+{
+	__u32 prog_ids[4], prog_cnt = 0, attach_flags, saved_prog_id;
+	int cg1 = 0, cg2 = 0, cg3 = 0, cg4 = 0, cg5 = 0, key = 0;
+	DECLARE_LIBBPF_OPTS(bpf_prog_attach_opts, attach_opts);
+	int allow_prog[7] = {-1};
+	unsigned long long value;
+	__u32 duration = 0;
+	int i = 0;
+
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++) {
+		allow_prog[i] = prog_load_cnt(1, 1 << i);
+		if (CHECK(allow_prog[i] < 0, "prog_load",
+			  "verifier output:\n%s\n-------\n", bpf_log_buf))
+			goto err;
+	}
+
+	if (CHECK_FAIL(setup_cgroup_environment()))
+		goto err;
+
+	cg1 = create_and_get_cgroup("/cg1");
+	if (CHECK_FAIL(cg1 < 0))
+		goto err;
+	cg2 = create_and_get_cgroup("/cg1/cg2");
+	if (CHECK_FAIL(cg2 < 0))
+		goto err;
+	cg3 = create_and_get_cgroup("/cg1/cg2/cg3");
+	if (CHECK_FAIL(cg3 < 0))
+		goto err;
+	cg4 = create_and_get_cgroup("/cg1/cg2/cg3/cg4");
+	if (CHECK_FAIL(cg4 < 0))
+		goto err;
+	cg5 = create_and_get_cgroup("/cg1/cg2/cg3/cg4/cg5");
+	if (CHECK_FAIL(cg5 < 0))
+		goto err;
+
+	if (CHECK_FAIL(join_cgroup("/cg1/cg2/cg3/cg4/cg5")))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[0], cg1, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_MULTI),
+		  "prog0_attach_to_cg1_multi", "errno=%d\n", errno))
+		goto err;
+
+	if (CHECK(!bpf_prog_attach(allow_prog[0], cg1, BPF_CGROUP_INET_EGRESS,
+				   BPF_F_ALLOW_MULTI),
+		  "fail_same_prog_attach_to_cg1", "unexpected success\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[1], cg1, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_MULTI),
+		  "prog1_attach_to_cg1_multi", "errno=%d\n", errno))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[2], cg2, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_OVERRIDE),
+		  "prog2_attach_to_cg2_override", "errno=%d\n", errno))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[3], cg3, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_MULTI),
+		  "prog3_attach_to_cg3_multi", "errno=%d\n", errno))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[4], cg4, BPF_CGROUP_INET_EGRESS,
+			    BPF_F_ALLOW_OVERRIDE),
+		  "prog4_attach_to_cg4_override", "errno=%d\n", errno))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog[5], cg5, BPF_CGROUP_INET_EGRESS, 0),
+		  "prog5_attach_to_cg5_none", "errno=%d\n", errno))
+		goto err;
+
+	CHECK_FAIL(system(PING_CMD));
+	CHECK_FAIL(bpf_map_lookup_elem(map_fd, &key, &value));
+	CHECK_FAIL(value != 1 + 2 + 8 + 32);
+
+	/* query the number of effective progs in cg5 */
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_QUERY_EFFECTIVE, NULL, NULL, &prog_cnt));
+	CHECK_FAIL(prog_cnt != 4);
+	/* retrieve prog_ids of effective progs in cg5 */
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_QUERY_EFFECTIVE, &attach_flags,
+				  prog_ids, &prog_cnt));
+	CHECK_FAIL(prog_cnt != 4);
+	CHECK_FAIL(attach_flags != 0);
+	saved_prog_id = prog_ids[0];
+	/* check enospc handling */
+	prog_ids[0] = 0;
+	prog_cnt = 2;
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_QUERY_EFFECTIVE, &attach_flags,
+				  prog_ids, &prog_cnt) >= 0);
+	CHECK_FAIL(errno != ENOSPC);
+	CHECK_FAIL(prog_cnt != 4);
+	/* check that prog_ids are returned even when buffer is too small */
+	CHECK_FAIL(prog_ids[0] != saved_prog_id);
+	/* retrieve prog_id of single attached prog in cg5 */
+	prog_ids[0] = 0;
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS, 0, NULL,
+				  prog_ids, &prog_cnt));
+	CHECK_FAIL(prog_cnt != 1);
+	CHECK_FAIL(prog_ids[0] != saved_prog_id);
+
+	/* detach bottom program and ping again */
+	if (CHECK(bpf_prog_detach2(-1, cg5, BPF_CGROUP_INET_EGRESS),
+		  "prog_detach_from_cg5", "errno=%d\n", errno))
+		goto err;
+
+	value = 0;
+	CHECK_FAIL(bpf_map_update_elem(map_fd, &key, &value, 0));
+	CHECK_FAIL(system(PING_CMD));
+	CHECK_FAIL(bpf_map_lookup_elem(map_fd, &key, &value));
+	CHECK_FAIL(value != 1 + 2 + 8 + 16);
+
+	/* test replace */
+
+	attach_opts.flags = BPF_F_ALLOW_OVERRIDE | BPF_F_REPLACE;
+	attach_opts.replace_prog_fd = allow_prog[0];
+	if (CHECK(!bpf_prog_attach_opts(allow_prog[6], cg1,
+					 BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "fail_prog_replace_override", "unexpected success\n"))
+		goto err;
+	CHECK_FAIL(errno != EINVAL);
+
+	attach_opts.flags = BPF_F_REPLACE;
+	if (CHECK(!bpf_prog_attach_opts(allow_prog[6], cg1,
+					 BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "fail_prog_replace_no_multi", "unexpected success\n"))
+		goto err;
+	CHECK_FAIL(errno != EINVAL);
+
+	attach_opts.flags = BPF_F_ALLOW_MULTI | BPF_F_REPLACE;
+	attach_opts.replace_prog_fd = -1;
+	if (CHECK(!bpf_prog_attach_opts(allow_prog[6], cg1,
+					 BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "fail_prog_replace_bad_fd", "unexpected success\n"))
+		goto err;
+	CHECK_FAIL(errno != EBADF);
+
+	/* replacing a program that is not attached to cgroup should fail  */
+	attach_opts.replace_prog_fd = allow_prog[3];
+	if (CHECK(!bpf_prog_attach_opts(allow_prog[6], cg1,
+					 BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "fail_prog_replace_no_ent", "unexpected success\n"))
+		goto err;
+	CHECK_FAIL(errno != ENOENT);
+
+	/* replace 1st from the top program */
+	attach_opts.replace_prog_fd = allow_prog[0];
+	if (CHECK(bpf_prog_attach_opts(allow_prog[6], cg1,
+					BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "prog_replace", "errno=%d\n", errno))
+		goto err;
+
+	/* replace program with itself */
+	attach_opts.replace_prog_fd = allow_prog[6];
+	if (CHECK(bpf_prog_attach_opts(allow_prog[6], cg1,
+					BPF_CGROUP_INET_EGRESS, &attach_opts),
+		  "prog_replace", "errno=%d\n", errno))
+		goto err;
+
+	value = 0;
+	CHECK_FAIL(bpf_map_update_elem(map_fd, &key, &value, 0));
+	CHECK_FAIL(system(PING_CMD));
+	CHECK_FAIL(bpf_map_lookup_elem(map_fd, &key, &value));
+	CHECK_FAIL(value != 64 + 2 + 8 + 16);
+
+	/* detach 3rd from bottom program and ping again */
+	if (CHECK(!bpf_prog_detach2(0, cg3, BPF_CGROUP_INET_EGRESS),
+		  "fail_prog_detach_from_cg3", "unexpected success\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_detach2(allow_prog[3], cg3, BPF_CGROUP_INET_EGRESS),
+		  "prog3_detach_from_cg3", "errno=%d\n", errno))
+		goto err;
+
+	value = 0;
+	CHECK_FAIL(bpf_map_update_elem(map_fd, &key, &value, 0));
+	CHECK_FAIL(system(PING_CMD));
+	CHECK_FAIL(bpf_map_lookup_elem(map_fd, &key, &value));
+	CHECK_FAIL(value != 64 + 2 + 16);
+
+	/* detach 2nd from bottom program and ping again */
+	if (CHECK(bpf_prog_detach2(-1, cg4, BPF_CGROUP_INET_EGRESS),
+		  "prog_detach_from_cg4", "errno=%d\n", errno))
+		goto err;
+
+	value = 0;
+	CHECK_FAIL(bpf_map_update_elem(map_fd, &key, &value, 0));
+	CHECK_FAIL(system(PING_CMD));
+	CHECK_FAIL(bpf_map_lookup_elem(map_fd, &key, &value));
+	CHECK_FAIL(value != 64 + 2 + 4);
+
+	prog_cnt = 4;
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_QUERY_EFFECTIVE, &attach_flags,
+				  prog_ids, &prog_cnt));
+	CHECK_FAIL(prog_cnt != 3);
+	CHECK_FAIL(attach_flags != 0);
+	CHECK_FAIL(bpf_prog_query(cg5, BPF_CGROUP_INET_EGRESS, 0, NULL,
+				  prog_ids, &prog_cnt));
+	CHECK_FAIL(prog_cnt != 0);
+
+err:
+	for (i = 0; i < ARRAY_SIZE(allow_prog); i++)
+		if (allow_prog[i] >= 0)
+			close(allow_prog[i]);
+	close(cg1);
+	close(cg2);
+	close(cg3);
+	close(cg4);
+	close(cg5);
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_attach_override.c b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_override.c
new file mode 100644
index 000000000000..9421a5b7f4e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_attach_override.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "cgroup_helpers.h"
+
+#define FOO		"/foo"
+#define BAR		"/foo/bar/"
+#define PING_CMD	"ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+static char bpf_log_buf[BPF_LOG_BUF_SIZE];
+
+static int prog_load(int verdict)
+{
+	struct bpf_insn prog[] = {
+		BPF_MOV64_IMM(BPF_REG_0, verdict), /* r0 = verdict */
+		BPF_EXIT_INSN(),
+	};
+	size_t insns_cnt = ARRAY_SIZE(prog);
+
+	return bpf_test_load_program(BPF_PROG_TYPE_CGROUP_SKB,
+			       prog, insns_cnt, "GPL", 0,
+			       bpf_log_buf, BPF_LOG_BUF_SIZE);
+}
+
+void serial_test_cgroup_attach_override(void)
+{
+	int drop_prog = -1, allow_prog = -1, foo = -1, bar = -1;
+	__u32 duration = 0;
+
+	allow_prog = prog_load(1);
+	if (CHECK(allow_prog < 0, "prog_load_allow",
+		  "verifier output:\n%s\n-------\n", bpf_log_buf))
+		goto err;
+
+	drop_prog = prog_load(0);
+	if (CHECK(drop_prog < 0, "prog_load_drop",
+		  "verifier output:\n%s\n-------\n", bpf_log_buf))
+		goto err;
+
+	foo = test__join_cgroup(FOO);
+	if (CHECK(foo < 0, "cgroup_join_foo", "cgroup setup failed\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(drop_prog, foo, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_OVERRIDE),
+		  "prog_attach_drop_foo_override",
+		  "attach prog to %s failed, errno=%d\n", FOO, errno))
+		goto err;
+
+	if (CHECK(!system(PING_CMD), "ping_fail",
+		  "ping unexpectedly succeeded\n"))
+		goto err;
+
+	bar = test__join_cgroup(BAR);
+	if (CHECK(bar < 0, "cgroup_join_bar", "cgroup setup failed\n"))
+		goto err;
+
+	if (CHECK(!system(PING_CMD), "ping_fail",
+		  "ping unexpectedly succeeded\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_OVERRIDE),
+		  "prog_attach_allow_bar_override",
+		  "attach prog to %s failed, errno=%d\n", BAR, errno))
+		goto err;
+
+	if (CHECK(system(PING_CMD), "ping_ok", "ping failed\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_detach(bar, BPF_CGROUP_INET_EGRESS),
+		  "prog_detach_bar",
+		  "detach prog from %s failed, errno=%d\n", BAR, errno))
+		goto err;
+
+	if (CHECK(!system(PING_CMD), "ping_fail",
+		  "ping unexpectedly succeeded\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_OVERRIDE),
+		  "prog_attach_allow_bar_override",
+		  "attach prog to %s failed, errno=%d\n", BAR, errno))
+		goto err;
+
+	if (CHECK(bpf_prog_detach(foo, BPF_CGROUP_INET_EGRESS),
+		  "prog_detach_foo",
+		  "detach prog from %s failed, errno=%d\n", FOO, errno))
+		goto err;
+
+	if (CHECK(system(PING_CMD), "ping_ok", "ping failed\n"))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS,
+				  BPF_F_ALLOW_OVERRIDE),
+		  "prog_attach_allow_bar_override",
+		  "attach prog to %s failed, errno=%d\n", BAR, errno))
+		goto err;
+
+	if (CHECK(!bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, 0),
+		  "fail_prog_attach_allow_bar_none",
+		  "attach prog to %s unexpectedly succeeded\n", BAR))
+		goto err;
+
+	if (CHECK(bpf_prog_detach(bar, BPF_CGROUP_INET_EGRESS),
+		  "prog_detach_bar",
+		  "detach prog from %s failed, errno=%d\n", BAR, errno))
+		goto err;
+
+	if (CHECK(!bpf_prog_detach(foo, BPF_CGROUP_INET_EGRESS),
+		  "fail_prog_detach_foo",
+		  "double detach from %s unexpectedly succeeded\n", FOO))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(allow_prog, foo, BPF_CGROUP_INET_EGRESS, 0),
+		  "prog_attach_allow_foo_none",
+		  "attach prog to %s failed, errno=%d\n", FOO, errno))
+		goto err;
+
+	if (CHECK(!bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS, 0),
+		  "fail_prog_attach_allow_bar_none",
+		  "attach prog to %s unexpectedly succeeded\n", BAR))
+		goto err;
+
+	if (CHECK(!bpf_prog_attach(allow_prog, bar, BPF_CGROUP_INET_EGRESS,
+				   BPF_F_ALLOW_OVERRIDE),
+		  "fail_prog_attach_allow_bar_override",
+		  "attach prog to %s unexpectedly succeeded\n", BAR))
+		goto err;
+
+	if (CHECK(!bpf_prog_attach(allow_prog, foo, BPF_CGROUP_INET_EGRESS,
+				   BPF_F_ALLOW_OVERRIDE),
+		  "fail_prog_attach_allow_foo_override",
+		  "attach prog to %s unexpectedly succeeded\n", FOO))
+		goto err;
+
+	if (CHECK(bpf_prog_attach(drop_prog, foo, BPF_CGROUP_INET_EGRESS, 0),
+		  "prog_attach_drop_foo_none",
+		  "attach prog to %s failed, errno=%d\n", FOO, errno))
+		goto err;
+
+err:
+	close(foo);
+	close(bar);
+	close(allow_prog);
+	close(drop_prog);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c b/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c
new file mode 100644
index 000000000000..5ab7547e38c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_dev.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <errno.h>
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "dev_cgroup.skel.h"
+
+#define TEST_CGROUP "/test-bpf-based-device-cgroup/"
+#define TEST_BUFFER_SIZE 64
+
+static void test_mknod(const char *path, mode_t mode, int dev_major,
+		       int dev_minor, int expected_ret, int expected_errno)
+{
+	int ret;
+
+	unlink(path);
+	ret = mknod(path, mode, makedev(dev_major, dev_minor));
+	ASSERT_EQ(ret, expected_ret, "mknod");
+	if (expected_ret)
+		ASSERT_EQ(errno, expected_errno, "mknod errno");
+	else
+		unlink(path);
+}
+
+static void test_read(const char *path, char *buf, int buf_size,
+		      int expected_ret, int expected_errno)
+{
+	int ret, fd;
+
+	fd = open(path, O_RDONLY);
+
+	/* A bare open on unauthorized device should fail */
+	if (expected_ret < 0) {
+		ASSERT_EQ(fd, expected_ret, "open ret for read");
+		ASSERT_EQ(errno, expected_errno, "open errno for read");
+		if (fd >= 0)
+			close(fd);
+		return;
+	}
+
+	if (!ASSERT_OK_FD(fd, "open ret for read"))
+		return;
+
+	ret = read(fd, buf, buf_size);
+	ASSERT_EQ(ret, expected_ret, "read");
+
+	close(fd);
+}
+
+static void test_write(const char *path, char *buf, int buf_size,
+		       int expected_ret, int expected_errno)
+{
+	int ret, fd;
+
+	fd = open(path, O_WRONLY);
+
+	/* A bare open on unauthorized device should fail */
+	if (expected_ret < 0) {
+		ASSERT_EQ(fd, expected_ret, "open ret for write");
+		ASSERT_EQ(errno, expected_errno, "open errno for write");
+		if (fd >= 0)
+			close(fd);
+		return;
+	}
+
+	if (!ASSERT_OK_FD(fd, "open ret for write"))
+		return;
+
+	ret = write(fd, buf, buf_size);
+	ASSERT_EQ(ret, expected_ret, "write");
+
+	close(fd);
+}
+
+void test_cgroup_dev(void)
+{
+	char buf[TEST_BUFFER_SIZE] = "some random test data";
+	struct dev_cgroup *skel;
+	int cgroup_fd;
+
+	cgroup_fd = cgroup_setup_and_join(TEST_CGROUP);
+	if (!ASSERT_OK_FD(cgroup_fd, "cgroup switch"))
+		return;
+
+	skel = dev_cgroup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "load program"))
+		goto cleanup_cgroup;
+
+	skel->links.bpf_prog1 =
+		bpf_program__attach_cgroup(skel->progs.bpf_prog1, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.bpf_prog1, "attach_program"))
+		goto cleanup_progs;
+
+	if (test__start_subtest("allow-mknod"))
+		test_mknod("/dev/test_dev_cgroup_null", S_IFCHR, 1, 3, 0, 0);
+
+	if (test__start_subtest("allow-read"))
+		test_read("/dev/urandom", buf, TEST_BUFFER_SIZE,
+			  TEST_BUFFER_SIZE, 0);
+
+	if (test__start_subtest("allow-write"))
+		test_write("/dev/null", buf, TEST_BUFFER_SIZE,
+			   TEST_BUFFER_SIZE, 0);
+
+	if (test__start_subtest("deny-mknod"))
+		test_mknod("/dev/test_dev_cgroup_zero", S_IFCHR, 1, 5, -1,
+			   EPERM);
+
+	if (test__start_subtest("deny-read"))
+		test_read("/dev/random", buf, TEST_BUFFER_SIZE, -1, EPERM);
+
+	if (test__start_subtest("deny-write"))
+		test_write("/dev/zero", buf, TEST_BUFFER_SIZE, -1, EPERM);
+
+	if (test__start_subtest("deny-mknod-wrong-type"))
+		test_mknod("/dev/test_dev_cgroup_block", S_IFBLK, 1, 3, -1,
+			   EPERM);
+
+cleanup_progs:
+	dev_cgroup__destroy(skel);
+cleanup_cgroup:
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_get_current_cgroup_id.c b/tools/testing/selftests/bpf/prog_tests/cgroup_get_current_cgroup_id.c
new file mode 100644
index 000000000000..7a1643b03bf3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_get_current_cgroup_id.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "get_cgroup_id_kern.skel.h"
+
+#define TEST_CGROUP "/test-bpf-get-cgroup-id/"
+
+void test_cgroup_get_current_cgroup_id(void)
+{
+	struct get_cgroup_id_kern *skel;
+	const struct timespec req = {
+		.tv_sec = 0,
+		.tv_nsec = 1,
+	};
+	int cgroup_fd;
+	__u64 ucgid;
+
+	cgroup_fd = cgroup_setup_and_join(TEST_CGROUP);
+	if (!ASSERT_OK_FD(cgroup_fd, "cgroup switch"))
+		return;
+
+	skel = get_cgroup_id_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "load program"))
+		goto cleanup_cgroup;
+
+	if (!ASSERT_OK(get_cgroup_id_kern__attach(skel), "attach bpf program"))
+		goto cleanup_progs;
+
+	skel->bss->expected_pid = getpid();
+	/* trigger the syscall on which is attached the tested prog */
+	if (!ASSERT_OK(syscall(__NR_nanosleep, &req, NULL), "nanosleep"))
+		goto cleanup_progs;
+
+	ucgid = get_cgroup_id(TEST_CGROUP);
+
+	ASSERT_EQ(skel->bss->cg_id, ucgid, "compare cgroup ids");
+
+cleanup_progs:
+	get_cgroup_id_kern__destroy(skel);
+cleanup_cgroup:
+	close(cgroup_fd);
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_getset_retval.c b/tools/testing/selftests/bpf/prog_tests/cgroup_getset_retval.c
new file mode 100644
index 000000000000..2bb5773d6f99
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_getset_retval.c
@@ -0,0 +1,549 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2021 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <cgroup_helpers.h>
+#include <network_helpers.h>
+
+#include "cgroup_getset_retval_setsockopt.skel.h"
+#include "cgroup_getset_retval_getsockopt.skel.h"
+#include "cgroup_getset_retval_hooks.skel.h"
+
+#define SOL_CUSTOM	0xdeadbeef
+
+static int zero;
+
+static void test_setsockopt_set(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_set_eunatch = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that sets EUNATCH, assert that
+	 * we actually get that error when we run setsockopt()
+	 */
+	link_set_eunatch = bpf_program__attach_cgroup(obj->progs.set_eunatch,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eunatch, "cg-attach-set_eunatch"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EUNATCH, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 1, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eunatch);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_set_and_get(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_set_eunatch = NULL, *link_get_retval = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that sets EUNATCH, and one that gets the
+	 * previously set errno. Assert that we get the same errno back.
+	 */
+	link_set_eunatch = bpf_program__attach_cgroup(obj->progs.set_eunatch,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eunatch, "cg-attach-set_eunatch"))
+		goto close_bpf_object;
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EUNATCH, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 2, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, -EUNATCH, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eunatch);
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_default_zero(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_get_retval = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that gets the previously set errno.
+	 * Assert that, without anything setting one, we get 0.
+	 */
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_OK(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				  &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 1, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, 0, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_default_zero_and_set(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_get_retval = NULL, *link_set_eunatch = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that gets the previously set errno, and then
+	 * one that sets the errno to EUNATCH. Assert that the get does not
+	 * see EUNATCH set later, and does not prevent EUNATCH from being set.
+	 */
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+	link_set_eunatch = bpf_program__attach_cgroup(obj->progs.set_eunatch,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eunatch, "cg-attach-set_eunatch"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EUNATCH, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 2, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, 0, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_get_retval);
+	bpf_link__destroy(link_set_eunatch);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_override(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_set_eunatch = NULL, *link_set_eisconn = NULL;
+	struct bpf_link *link_get_retval = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that sets EUNATCH, then one that sets EISCONN,
+	 * and then one that gets the exported errno. Assert both the syscall
+	 * and the helper sees the last set errno.
+	 */
+	link_set_eunatch = bpf_program__attach_cgroup(obj->progs.set_eunatch,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eunatch, "cg-attach-set_eunatch"))
+		goto close_bpf_object;
+	link_set_eisconn = bpf_program__attach_cgroup(obj->progs.set_eisconn,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eisconn, "cg-attach-set_eisconn"))
+		goto close_bpf_object;
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EISCONN, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 3, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, -EISCONN, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eunatch);
+	bpf_link__destroy(link_set_eisconn);
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_legacy_eperm(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_legacy_eperm = NULL, *link_get_retval = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that return a reject without setting errno
+	 * (legacy reject), and one that gets the errno. Assert that for
+	 * backward compatibility the syscall result in EPERM, and this
+	 * is also visible to the helper.
+	 */
+	link_legacy_eperm = bpf_program__attach_cgroup(obj->progs.legacy_eperm,
+						       cgroup_fd);
+	if (!ASSERT_OK_PTR(link_legacy_eperm, "cg-attach-legacy_eperm"))
+		goto close_bpf_object;
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EPERM, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 2, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, -EPERM, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_legacy_eperm);
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_setsockopt_legacy_no_override(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_setsockopt *obj;
+	struct bpf_link *link_set_eunatch = NULL, *link_legacy_eperm = NULL;
+	struct bpf_link *link_get_retval = NULL;
+
+	obj = cgroup_getset_retval_setsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach setsockopt that sets EUNATCH, then one that return a reject
+	 * without setting errno, and then one that gets the exported errno.
+	 * Assert both the syscall and the helper's errno are unaffected by
+	 * the second prog (i.e. legacy rejects does not override the errno
+	 * to EPERM).
+	 */
+	link_set_eunatch = bpf_program__attach_cgroup(obj->progs.set_eunatch,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eunatch, "cg-attach-set_eunatch"))
+		goto close_bpf_object;
+	link_legacy_eperm = bpf_program__attach_cgroup(obj->progs.legacy_eperm,
+						       cgroup_fd);
+	if (!ASSERT_OK_PTR(link_legacy_eperm, "cg-attach-legacy_eperm"))
+		goto close_bpf_object;
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(setsockopt(sock_fd, SOL_SOCKET, SO_REUSEADDR,
+				   &zero, sizeof(int)), "setsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EUNATCH, "setsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 3, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, -EUNATCH, "retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eunatch);
+	bpf_link__destroy(link_legacy_eperm);
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_setsockopt__destroy(obj);
+}
+
+static void test_getsockopt_get(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_getsockopt *obj;
+	struct bpf_link *link_get_retval = NULL;
+	int buf;
+	socklen_t optlen = sizeof(buf);
+
+	obj = cgroup_getset_retval_getsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach getsockopt that gets previously set errno. Assert that the
+	 * error from kernel is in both ctx_retval_value and retval_value.
+	 */
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(getsockopt(sock_fd, SOL_CUSTOM, 0,
+				   &buf, &optlen), "getsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EOPNOTSUPP, "getsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 1, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, -EOPNOTSUPP, "retval_value"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->ctx_retval_value, -EOPNOTSUPP, "ctx_retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_getsockopt__destroy(obj);
+}
+
+static void test_getsockopt_override(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_getsockopt *obj;
+	struct bpf_link *link_set_eisconn = NULL;
+	int buf;
+	socklen_t optlen = sizeof(buf);
+
+	obj = cgroup_getset_retval_getsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach getsockopt that sets retval to -EISCONN. Assert that this
+	 * overrides the value from kernel.
+	 */
+	link_set_eisconn = bpf_program__attach_cgroup(obj->progs.set_eisconn,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eisconn, "cg-attach-set_eisconn"))
+		goto close_bpf_object;
+
+	if (!ASSERT_ERR(getsockopt(sock_fd, SOL_CUSTOM, 0,
+				   &buf, &optlen), "getsockopt"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(errno, EISCONN, "getsockopt-errno"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 1, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eisconn);
+
+	cgroup_getset_retval_getsockopt__destroy(obj);
+}
+
+static void test_getsockopt_retval_sync(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_getsockopt *obj;
+	struct bpf_link *link_set_eisconn = NULL, *link_clear_retval = NULL;
+	struct bpf_link *link_get_retval = NULL;
+	int buf;
+	socklen_t optlen = sizeof(buf);
+
+	obj = cgroup_getset_retval_getsockopt__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	/* Attach getsockopt that sets retval to -EISCONN, and one that clears
+	 * ctx retval. Assert that the clearing ctx retval is synced to helper
+	 * and clears any errors both from kernel and BPF..
+	 */
+	link_set_eisconn = bpf_program__attach_cgroup(obj->progs.set_eisconn,
+						      cgroup_fd);
+	if (!ASSERT_OK_PTR(link_set_eisconn, "cg-attach-set_eisconn"))
+		goto close_bpf_object;
+	link_clear_retval = bpf_program__attach_cgroup(obj->progs.clear_retval,
+						       cgroup_fd);
+	if (!ASSERT_OK_PTR(link_clear_retval, "cg-attach-clear_retval"))
+		goto close_bpf_object;
+	link_get_retval = bpf_program__attach_cgroup(obj->progs.get_retval,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_get_retval, "cg-attach-get_retval"))
+		goto close_bpf_object;
+
+	if (!ASSERT_OK(getsockopt(sock_fd, SOL_CUSTOM, 0,
+				  &buf, &optlen), "getsockopt"))
+		goto close_bpf_object;
+
+	if (!ASSERT_EQ(obj->bss->invocations, 3, "invocations"))
+		goto close_bpf_object;
+	if (!ASSERT_FALSE(obj->bss->assertion_error, "assertion_error"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->retval_value, 0, "retval_value"))
+		goto close_bpf_object;
+	if (!ASSERT_EQ(obj->bss->ctx_retval_value, 0, "ctx_retval_value"))
+		goto close_bpf_object;
+
+close_bpf_object:
+	bpf_link__destroy(link_set_eisconn);
+	bpf_link__destroy(link_clear_retval);
+	bpf_link__destroy(link_get_retval);
+
+	cgroup_getset_retval_getsockopt__destroy(obj);
+}
+
+struct exposed_hook {
+	const char *name;
+	int expected_err;
+} exposed_hooks[] = {
+
+#define BPF_RETVAL_HOOK(NAME, SECTION, CTX, EXPECTED_ERR) \
+	{ \
+		.name = #NAME, \
+		.expected_err = EXPECTED_ERR, \
+	},
+
+#include "cgroup_getset_retval_hooks.h"
+
+#undef BPF_RETVAL_HOOK
+};
+
+static void test_exposed_hooks(int cgroup_fd, int sock_fd)
+{
+	struct cgroup_getset_retval_hooks *skel;
+	struct bpf_program *prog;
+	int err;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(exposed_hooks); i++) {
+		skel = cgroup_getset_retval_hooks__open();
+		if (!ASSERT_OK_PTR(skel, "cgroup_getset_retval_hooks__open"))
+			continue;
+
+		prog = bpf_object__find_program_by_name(skel->obj, exposed_hooks[i].name);
+		if (!ASSERT_NEQ(prog, NULL, "bpf_object__find_program_by_name"))
+			goto close_skel;
+
+		err = bpf_program__set_autoload(prog, true);
+		if (!ASSERT_OK(err, "bpf_program__set_autoload"))
+			goto close_skel;
+
+		err = cgroup_getset_retval_hooks__load(skel);
+		ASSERT_EQ(err, exposed_hooks[i].expected_err, "expected_err");
+
+close_skel:
+		cgroup_getset_retval_hooks__destroy(skel);
+	}
+}
+
+void test_cgroup_getset_retval(void)
+{
+	int cgroup_fd = -1;
+	int sock_fd = -1;
+
+	cgroup_fd = test__join_cgroup("/cgroup_getset_retval");
+	if (!ASSERT_GE(cgroup_fd, 0, "cg-create"))
+		goto close_fd;
+
+	sock_fd = start_server(AF_INET, SOCK_DGRAM, NULL, 0, 0);
+	if (!ASSERT_GE(sock_fd, 0, "start-server"))
+		goto close_fd;
+
+	if (test__start_subtest("setsockopt-set"))
+		test_setsockopt_set(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-set_and_get"))
+		test_setsockopt_set_and_get(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-default_zero"))
+		test_setsockopt_default_zero(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-default_zero_and_set"))
+		test_setsockopt_default_zero_and_set(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-override"))
+		test_setsockopt_override(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-legacy_eperm"))
+		test_setsockopt_legacy_eperm(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("setsockopt-legacy_no_override"))
+		test_setsockopt_legacy_no_override(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("getsockopt-get"))
+		test_getsockopt_get(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("getsockopt-override"))
+		test_getsockopt_override(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("getsockopt-retval_sync"))
+		test_getsockopt_retval_sync(cgroup_fd, sock_fd);
+
+	if (test__start_subtest("exposed_hooks"))
+		test_exposed_hooks(cgroup_fd, sock_fd);
+
+close_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_hierarchical_stats.c b/tools/testing/selftests/bpf/prog_tests/cgroup_hierarchical_stats.c
new file mode 100644
index 000000000000..3bd27d2ea668
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_hierarchical_stats.c
@@ -0,0 +1,339 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This test makes sure BPF stats collection using rstat works correctly.
+ * The test uses 3 BPF progs:
+ * (a) counter: This BPF prog is invoked every time we attach a process to a
+ *              cgroup and locklessly increments a percpu counter.
+ *              The program then calls cgroup_rstat_updated() to inform rstat
+ *              of an update on the (cpu, cgroup) pair.
+ *
+ * (b) flusher: This BPF prog is invoked when an rstat flush is ongoing, it
+ *              aggregates all percpu counters to a total counter, and also
+ *              propagates the changes to the ancestor cgroups.
+ *
+ * (c) dumper: This BPF prog is a cgroup_iter. It is used to output the total
+ *             counter of a cgroup through reading a file in userspace.
+ *
+ * The test sets up a cgroup hierarchy, and the above programs. It spawns a few
+ * processes in the leaf cgroups and makes sure all the counters are aggregated
+ * correctly.
+ *
+ * Copyright 2022 Google LLC.
+ */
+#include <asm-generic/errno.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <bpf/bpf.h>
+
+#include "cgroup_helpers.h"
+#include "cgroup_hierarchical_stats.skel.h"
+
+#define PAGE_SIZE 4096
+#define MB(x) (x << 20)
+
+#define PROCESSES_PER_CGROUP 3
+
+#define BPFFS_ROOT "/sys/fs/bpf/"
+#define BPFFS_ATTACH_COUNTERS BPFFS_ROOT "attach_counters/"
+
+#define CG_ROOT_NAME "root"
+#define CG_ROOT_ID 1
+
+#define CGROUP_PATH(p, n) {.path = p"/"n, .name = n}
+
+static struct {
+	const char *path, *name;
+	unsigned long long id;
+	int fd;
+} cgroups[] = {
+	CGROUP_PATH("/", "test"),
+	CGROUP_PATH("/test", "child1"),
+	CGROUP_PATH("/test", "child2"),
+	CGROUP_PATH("/test/child1", "child1_1"),
+	CGROUP_PATH("/test/child1", "child1_2"),
+	CGROUP_PATH("/test/child2", "child2_1"),
+	CGROUP_PATH("/test/child2", "child2_2"),
+};
+
+#define N_CGROUPS ARRAY_SIZE(cgroups)
+#define N_NON_LEAF_CGROUPS 3
+
+static int root_cgroup_fd;
+static bool mounted_bpffs;
+
+/* reads file at 'path' to 'buf', returns 0 on success. */
+static int read_from_file(const char *path, char *buf, size_t size)
+{
+	int fd, len;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	len = read(fd, buf, size);
+	close(fd);
+	if (len < 0)
+		return len;
+
+	buf[len] = 0;
+	return 0;
+}
+
+/* mounts bpffs and mkdir for reading stats, returns 0 on success. */
+static int setup_bpffs(void)
+{
+	int err;
+
+	/* Mount bpffs */
+	err = mount("bpf", BPFFS_ROOT, "bpf", 0, NULL);
+	mounted_bpffs = !err;
+	if (ASSERT_FALSE(err && errno != EBUSY, "mount"))
+		return err;
+
+	/* Create a directory to contain stat files in bpffs */
+	err = mkdir(BPFFS_ATTACH_COUNTERS, 0755);
+	if (!ASSERT_OK(err, "mkdir"))
+		return err;
+
+	return 0;
+}
+
+static void cleanup_bpffs(void)
+{
+	/* Remove created directory in bpffs */
+	ASSERT_OK(rmdir(BPFFS_ATTACH_COUNTERS), "rmdir "BPFFS_ATTACH_COUNTERS);
+
+	/* Unmount bpffs, if it wasn't already mounted when we started */
+	if (mounted_bpffs)
+		return;
+
+	ASSERT_OK(umount(BPFFS_ROOT), "unmount bpffs");
+}
+
+/* sets up cgroups, returns 0 on success. */
+static int setup_cgroups(void)
+{
+	int i, fd, err;
+
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "setup_cgroup_environment"))
+		return err;
+
+	root_cgroup_fd = get_root_cgroup();
+	if (!ASSERT_GE(root_cgroup_fd, 0, "get_root_cgroup"))
+		return root_cgroup_fd;
+
+	for (i = 0; i < N_CGROUPS; i++) {
+		fd = create_and_get_cgroup(cgroups[i].path);
+		if (!ASSERT_GE(fd, 0, "create_and_get_cgroup"))
+			return fd;
+
+		cgroups[i].fd = fd;
+		cgroups[i].id = get_cgroup_id(cgroups[i].path);
+	}
+	return 0;
+}
+
+static void cleanup_cgroups(void)
+{
+	close(root_cgroup_fd);
+	for (int i = 0; i < N_CGROUPS; i++)
+		close(cgroups[i].fd);
+	cleanup_cgroup_environment();
+}
+
+/* Sets up cgroup hiearchary, returns 0 on success. */
+static int setup_hierarchy(void)
+{
+	return setup_bpffs() || setup_cgroups();
+}
+
+static void destroy_hierarchy(void)
+{
+	cleanup_cgroups();
+	cleanup_bpffs();
+}
+
+static int attach_processes(void)
+{
+	int i, j, status;
+
+	/* In every leaf cgroup, attach 3 processes */
+	for (i = N_NON_LEAF_CGROUPS; i < N_CGROUPS; i++) {
+		for (j = 0; j < PROCESSES_PER_CGROUP; j++) {
+			pid_t pid;
+
+			/* Create child and attach to cgroup */
+			pid = fork();
+			if (pid == 0) {
+				if (join_parent_cgroup(cgroups[i].path))
+					exit(EACCES);
+				exit(0);
+			}
+
+			/* Cleanup child */
+			waitpid(pid, &status, 0);
+			if (!ASSERT_TRUE(WIFEXITED(status), "child process exited"))
+				return 1;
+			if (!ASSERT_EQ(WEXITSTATUS(status), 0,
+				       "child process exit code"))
+				return 1;
+		}
+	}
+	return 0;
+}
+
+static unsigned long long
+get_attach_counter(unsigned long long cgroup_id, const char *file_name)
+{
+	unsigned long long attach_counter = 0, id = 0;
+	static char buf[128], path[128];
+
+	/* For every cgroup, read the file generated by cgroup_iter */
+	snprintf(path, 128, "%s%s", BPFFS_ATTACH_COUNTERS, file_name);
+	if (!ASSERT_OK(read_from_file(path, buf, 128), "read cgroup_iter"))
+		return 0;
+
+	/* Check the output file formatting */
+	ASSERT_EQ(sscanf(buf, "cg_id: %llu, attach_counter: %llu\n",
+			 &id, &attach_counter), 2, "output format");
+
+	/* Check that the cgroup_id is displayed correctly */
+	ASSERT_EQ(id, cgroup_id, "cgroup_id");
+	/* Check that the counter is non-zero */
+	ASSERT_GT(attach_counter, 0, "attach counter non-zero");
+	return attach_counter;
+}
+
+static void check_attach_counters(void)
+{
+	unsigned long long attach_counters[N_CGROUPS], root_attach_counter;
+	int i;
+
+	for (i = 0; i < N_CGROUPS; i++)
+		attach_counters[i] = get_attach_counter(cgroups[i].id,
+							cgroups[i].name);
+
+	/* Read stats for root too */
+	root_attach_counter = get_attach_counter(CG_ROOT_ID, CG_ROOT_NAME);
+
+	/* Check that all leafs cgroups have an attach counter of 3 */
+	for (i = N_NON_LEAF_CGROUPS; i < N_CGROUPS; i++)
+		ASSERT_EQ(attach_counters[i], PROCESSES_PER_CGROUP,
+			  "leaf cgroup attach counter");
+
+	/* Check that child1 == child1_1 + child1_2 */
+	ASSERT_EQ(attach_counters[1], attach_counters[3] + attach_counters[4],
+		  "child1_counter");
+	/* Check that child2 == child2_1 + child2_2 */
+	ASSERT_EQ(attach_counters[2], attach_counters[5] + attach_counters[6],
+		  "child2_counter");
+	/* Check that test == child1 + child2 */
+	ASSERT_EQ(attach_counters[0], attach_counters[1] + attach_counters[2],
+		  "test_counter");
+	/* Check that root >= test */
+	ASSERT_GE(root_attach_counter, attach_counters[1], "root_counter");
+}
+
+/* Creates iter link and pins in bpffs, returns 0 on success, -errno on failure.
+ */
+static int setup_cgroup_iter(struct cgroup_hierarchical_stats *obj,
+			     int cgroup_fd, const char *file_name)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo = {};
+	struct bpf_link *link;
+	static char path[128];
+	int err;
+
+	/*
+	 * Create an iter link, parameterized by cgroup_fd. We only want to
+	 * traverse one cgroup, so set the traversal order to "self".
+	 */
+	linfo.cgroup.cgroup_fd = cgroup_fd;
+	linfo.cgroup.order = BPF_CGROUP_ITER_SELF_ONLY;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(obj->progs.dumper, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return -EFAULT;
+
+	/* Pin the link to a bpffs file */
+	snprintf(path, 128, "%s%s", BPFFS_ATTACH_COUNTERS, file_name);
+	err = bpf_link__pin(link, path);
+	ASSERT_OK(err, "pin cgroup_iter");
+
+	/* Remove the link, leaving only the ref held by the pinned file */
+	bpf_link__destroy(link);
+	return err;
+}
+
+/* Sets up programs for collecting stats, returns 0 on success. */
+static int setup_progs(struct cgroup_hierarchical_stats **skel)
+{
+	int i, err;
+
+	*skel = cgroup_hierarchical_stats__open_and_load();
+	if (!ASSERT_OK_PTR(*skel, "open_and_load"))
+		return 1;
+
+	/* Attach cgroup_iter program that will dump the stats to cgroups */
+	for (i = 0; i < N_CGROUPS; i++) {
+		err = setup_cgroup_iter(*skel, cgroups[i].fd, cgroups[i].name);
+		if (!ASSERT_OK(err, "setup_cgroup_iter"))
+			return err;
+	}
+
+	/* Also dump stats for root */
+	err = setup_cgroup_iter(*skel, root_cgroup_fd, CG_ROOT_NAME);
+	if (!ASSERT_OK(err, "setup_cgroup_iter"))
+		return err;
+
+	bpf_program__set_autoattach((*skel)->progs.dumper, false);
+	err = cgroup_hierarchical_stats__attach(*skel);
+	if (!ASSERT_OK(err, "attach"))
+		return err;
+
+	return 0;
+}
+
+static void destroy_progs(struct cgroup_hierarchical_stats *skel)
+{
+	static char path[128];
+	int i;
+
+	for (i = 0; i < N_CGROUPS; i++) {
+		/* Delete files in bpffs that cgroup_iters are pinned in */
+		snprintf(path, 128, "%s%s", BPFFS_ATTACH_COUNTERS,
+			 cgroups[i].name);
+		ASSERT_OK(remove(path), "remove cgroup_iter pin");
+	}
+
+	/* Delete root file in bpffs */
+	snprintf(path, 128, "%s%s", BPFFS_ATTACH_COUNTERS, CG_ROOT_NAME);
+	ASSERT_OK(remove(path), "remove cgroup_iter root pin");
+	cgroup_hierarchical_stats__destroy(skel);
+}
+
+void test_cgroup_hierarchical_stats(void)
+{
+	struct cgroup_hierarchical_stats *skel = NULL;
+
+	if (setup_hierarchy())
+		goto hierarchy_cleanup;
+	if (setup_progs(&skel))
+		goto cleanup;
+	if (attach_processes())
+		goto cleanup;
+	check_attach_counters();
+cleanup:
+	destroy_progs(skel);
+hierarchy_cleanup:
+	destroy_hierarchy();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_iter.c b/tools/testing/selftests/bpf/prog_tests/cgroup_iter.c
new file mode 100644
index 000000000000..574d9a0cdc8e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_iter.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+#include "iters_css_task.skel.h"
+#include "cgroup_iter.skel.h"
+#include "cgroup_helpers.h"
+
+#define ROOT           0
+#define PARENT         1
+#define CHILD1         2
+#define CHILD2         3
+#define NUM_CGROUPS    4
+
+#define PROLOGUE       "prologue\n"
+#define EPILOGUE       "epilogue\n"
+
+static const char *cg_path[] = {
+	"/", "/parent", "/parent/child1", "/parent/child2"
+};
+
+static int cg_fd[] = {-1, -1, -1, -1};
+static unsigned long long cg_id[] = {0, 0, 0, 0};
+static char expected_output[64];
+
+static int setup_cgroups(void)
+{
+	int fd, i = 0;
+
+	for (i = 0; i < NUM_CGROUPS; i++) {
+		fd = create_and_get_cgroup(cg_path[i]);
+		if (fd < 0)
+			return fd;
+
+		cg_fd[i] = fd;
+		cg_id[i] = get_cgroup_id(cg_path[i]);
+	}
+	return 0;
+}
+
+static void cleanup_cgroups(void)
+{
+	int i;
+
+	for (i = 0; i < NUM_CGROUPS; i++)
+		close(cg_fd[i]);
+}
+
+static void read_from_cgroup_iter(struct bpf_program *prog, int cgroup_fd,
+				  int order, const char *testname)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+	int len, iter_fd;
+	static char buf[128];
+	size_t left;
+	char *p;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.cgroup.cgroup_fd = cgroup_fd;
+	linfo.cgroup.order = order;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	link = bpf_program__attach_iter(prog, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (iter_fd < 0)
+		goto free_link;
+
+	memset(buf, 0, sizeof(buf));
+	left = ARRAY_SIZE(buf);
+	p = buf;
+	while ((len = read(iter_fd, p, left)) > 0) {
+		p += len;
+		left -= len;
+	}
+
+	ASSERT_STREQ(buf, expected_output, testname);
+
+	/* read() after iter finishes should be ok. */
+	if (len == 0)
+		ASSERT_OK(read(iter_fd, buf, sizeof(buf)), "second_read");
+
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+}
+
+/* Invalid cgroup. */
+static void test_invalid_cgroup(struct cgroup_iter *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.cgroup.cgroup_fd = (__u32)-1;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	link = bpf_program__attach_iter(skel->progs.cgroup_id_printer, &opts);
+	ASSERT_ERR_PTR(link, "attach_iter");
+	bpf_link__destroy(link);
+}
+
+/* Specifying both cgroup_fd and cgroup_id is invalid. */
+static void test_invalid_cgroup_spec(struct cgroup_iter *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct bpf_link *link;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.cgroup.cgroup_fd = (__u32)cg_fd[PARENT];
+	linfo.cgroup.cgroup_id = (__u64)cg_id[PARENT];
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	link = bpf_program__attach_iter(skel->progs.cgroup_id_printer, &opts);
+	ASSERT_ERR_PTR(link, "attach_iter");
+	bpf_link__destroy(link);
+}
+
+/* Preorder walk prints parent and child in order. */
+static void test_walk_preorder(struct cgroup_iter *skel)
+{
+	snprintf(expected_output, sizeof(expected_output),
+		 PROLOGUE "%8llu\n%8llu\n%8llu\n" EPILOGUE,
+		 cg_id[PARENT], cg_id[CHILD1], cg_id[CHILD2]);
+
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[PARENT],
+			      BPF_CGROUP_ITER_DESCENDANTS_PRE, "preorder");
+}
+
+/* Postorder walk prints child and parent in order. */
+static void test_walk_postorder(struct cgroup_iter *skel)
+{
+	snprintf(expected_output, sizeof(expected_output),
+		 PROLOGUE "%8llu\n%8llu\n%8llu\n" EPILOGUE,
+		 cg_id[CHILD1], cg_id[CHILD2], cg_id[PARENT]);
+
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[PARENT],
+			      BPF_CGROUP_ITER_DESCENDANTS_POST, "postorder");
+}
+
+/* Walking parents prints parent and then root. */
+static void test_walk_ancestors_up(struct cgroup_iter *skel)
+{
+	/* terminate the walk when ROOT is met. */
+	skel->bss->terminal_cgroup = cg_id[ROOT];
+
+	snprintf(expected_output, sizeof(expected_output),
+		 PROLOGUE "%8llu\n%8llu\n" EPILOGUE,
+		 cg_id[PARENT], cg_id[ROOT]);
+
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[PARENT],
+			      BPF_CGROUP_ITER_ANCESTORS_UP, "ancestors_up");
+
+	skel->bss->terminal_cgroup = 0;
+}
+
+/* Early termination prints parent only. */
+static void test_early_termination(struct cgroup_iter *skel)
+{
+	/* terminate the walk after the first element is processed. */
+	skel->bss->terminate_early = 1;
+
+	snprintf(expected_output, sizeof(expected_output),
+		 PROLOGUE "%8llu\n" EPILOGUE, cg_id[PARENT]);
+
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[PARENT],
+			      BPF_CGROUP_ITER_DESCENDANTS_PRE, "early_termination");
+
+	skel->bss->terminate_early = 0;
+}
+
+/* Waling self prints self only. */
+static void test_walk_self_only(struct cgroup_iter *skel)
+{
+	snprintf(expected_output, sizeof(expected_output),
+		 PROLOGUE "%8llu\n" EPILOGUE, cg_id[PARENT]);
+
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[PARENT],
+			      BPF_CGROUP_ITER_SELF_ONLY, "self_only");
+}
+
+static void test_walk_dead_self_only(struct cgroup_iter *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	char expected_output[128], buf[128];
+	const char *cgrp_name = "/dead";
+	union bpf_iter_link_info linfo;
+	int len, cgrp_fd, iter_fd;
+	struct bpf_link *link;
+	size_t left;
+	char *p;
+
+	cgrp_fd = create_and_get_cgroup(cgrp_name);
+	if (!ASSERT_GE(cgrp_fd, 0, "create cgrp"))
+		return;
+
+	/* The cgroup will be dead during read() iteration, so it only has
+	 * epilogue in the output
+	 */
+	snprintf(expected_output, sizeof(expected_output), EPILOGUE);
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.cgroup.cgroup_fd = cgrp_fd;
+	linfo.cgroup.order = BPF_CGROUP_ITER_SELF_ONLY;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+
+	link = bpf_program__attach_iter(skel->progs.cgroup_id_printer, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto close_cgrp;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "iter_create"))
+		goto free_link;
+
+	/* Close link fd and cgroup fd */
+	bpf_link__destroy(link);
+	close(cgrp_fd);
+
+	/* Remove cgroup to mark it as dead */
+	remove_cgroup(cgrp_name);
+
+	/* Two kern_sync_rcu() and usleep() pairs are used to wait for the
+	 * releases of cgroup css, and the last kern_sync_rcu() and usleep()
+	 * pair is used to wait for the free of cgroup itself.
+	 */
+	kern_sync_rcu();
+	usleep(8000);
+	kern_sync_rcu();
+	usleep(8000);
+	kern_sync_rcu();
+	usleep(1000);
+
+	memset(buf, 0, sizeof(buf));
+	left = ARRAY_SIZE(buf);
+	p = buf;
+	while ((len = read(iter_fd, p, left)) > 0) {
+		p += len;
+		left -= len;
+	}
+
+	ASSERT_STREQ(buf, expected_output, "dead cgroup output");
+
+	/* read() after iter finishes should be ok. */
+	if (len == 0)
+		ASSERT_OK(read(iter_fd, buf, sizeof(buf)), "second_read");
+
+	close(iter_fd);
+	return;
+free_link:
+	bpf_link__destroy(link);
+close_cgrp:
+	close(cgrp_fd);
+}
+
+static void test_walk_self_only_css_task(void)
+{
+	struct iters_css_task *skel;
+	int err;
+
+	skel = iters_css_task__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.cgroup_id_printer, true);
+
+	err = iters_css_task__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = join_cgroup(cg_path[CHILD2]);
+	if (!ASSERT_OK(err, "join_cgroup"))
+		goto cleanup;
+
+	skel->bss->target_pid = getpid();
+	snprintf(expected_output, sizeof(expected_output),
+		PROLOGUE "%8llu\n" EPILOGUE, cg_id[CHILD2]);
+	read_from_cgroup_iter(skel->progs.cgroup_id_printer, cg_fd[CHILD2],
+		BPF_CGROUP_ITER_SELF_ONLY, "test_walk_self_only_css_task");
+	ASSERT_EQ(skel->bss->css_task_cnt, 1, "css_task_cnt");
+cleanup:
+	iters_css_task__destroy(skel);
+}
+
+void test_cgroup_iter(void)
+{
+	struct cgroup_iter *skel = NULL;
+
+	if (setup_cgroup_environment())
+		return;
+
+	if (setup_cgroups())
+		goto out;
+
+	skel = cgroup_iter__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "cgroup_iter__open_and_load"))
+		goto out;
+
+	if (test__start_subtest("cgroup_iter__invalid_cgroup"))
+		test_invalid_cgroup(skel);
+	if (test__start_subtest("cgroup_iter__invalid_cgroup_spec"))
+		test_invalid_cgroup_spec(skel);
+	if (test__start_subtest("cgroup_iter__preorder"))
+		test_walk_preorder(skel);
+	if (test__start_subtest("cgroup_iter__postorder"))
+		test_walk_postorder(skel);
+	if (test__start_subtest("cgroup_iter__ancestors_up_walk"))
+		test_walk_ancestors_up(skel);
+	if (test__start_subtest("cgroup_iter__early_termination"))
+		test_early_termination(skel);
+	if (test__start_subtest("cgroup_iter__self_only"))
+		test_walk_self_only(skel);
+	if (test__start_subtest("cgroup_iter__dead_self_only"))
+		test_walk_dead_self_only(skel);
+	if (test__start_subtest("cgroup_iter__self_only_css_task"))
+		test_walk_self_only_css_task();
+
+out:
+	cgroup_iter__destroy(skel);
+	cleanup_cgroups();
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_link.c b/tools/testing/selftests/bpf/prog_tests/cgroup_link.c
new file mode 100644
index 000000000000..15093a69510e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_link.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "testing_helpers.h"
+#include "test_cgroup_link.skel.h"
+
+static __u32 duration = 0;
+#define PING_CMD	"ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+static struct test_cgroup_link *skel = NULL;
+
+int ping_and_check(int exp_calls, int exp_alt_calls)
+{
+	skel->bss->calls = 0;
+	skel->bss->alt_calls = 0;
+	CHECK_FAIL(system(PING_CMD));
+	if (CHECK(skel->bss->calls != exp_calls, "call_cnt",
+		  "exp %d, got %d\n", exp_calls, skel->bss->calls))
+		return -EINVAL;
+	if (CHECK(skel->bss->alt_calls != exp_alt_calls, "alt_call_cnt",
+		  "exp %d, got %d\n", exp_alt_calls, skel->bss->alt_calls))
+		return -EINVAL;
+	return 0;
+}
+
+void serial_test_cgroup_link(void)
+{
+	struct {
+		const char *path;
+		int fd;
+	} cgs[] = {
+		{ "/cg1" },
+		{ "/cg1/cg2" },
+		{ "/cg1/cg2/cg3" },
+		{ "/cg1/cg2/cg3/cg4" },
+	};
+	int last_cg = ARRAY_SIZE(cgs) - 1, cg_nr = ARRAY_SIZE(cgs);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, link_upd_opts);
+	struct bpf_link *links[ARRAY_SIZE(cgs)] = {}, *tmp_link;
+	__u32 prog_ids[ARRAY_SIZE(cgs)], prog_cnt = 0, attach_flags, prog_id;
+	struct bpf_link_info info;
+	int i = 0, err, prog_fd;
+	bool detach_legacy = false;
+
+	skel = test_cgroup_link__open_and_load();
+	if (CHECK(!skel, "skel_open_load", "failed to open/load skeleton\n"))
+		return;
+	prog_fd = bpf_program__fd(skel->progs.egress);
+
+	err = setup_cgroup_environment();
+	if (CHECK(err, "cg_init", "failed: %d\n", err))
+		goto cleanup;
+
+	for (i = 0; i < cg_nr; i++) {
+		cgs[i].fd = create_and_get_cgroup(cgs[i].path);
+		if (!ASSERT_GE(cgs[i].fd, 0, "cg_create"))
+			goto cleanup;
+	}
+
+	err = join_cgroup(cgs[last_cg].path);
+	if (CHECK(err, "cg_join", "fail: %d\n", err))
+		goto cleanup;
+
+	for (i = 0; i < cg_nr; i++) {
+		links[i] = bpf_program__attach_cgroup(skel->progs.egress,
+						      cgs[i].fd);
+		if (!ASSERT_OK_PTR(links[i], "cg_attach"))
+			goto cleanup;
+	}
+
+	ping_and_check(cg_nr, 0);
+
+	/* query the number of attached progs and attach flags in root cg */
+	err = bpf_prog_query(cgs[0].fd, BPF_CGROUP_INET_EGRESS,
+			     0, &attach_flags, NULL, &prog_cnt);
+	CHECK_FAIL(err);
+	CHECK_FAIL(attach_flags != BPF_F_ALLOW_MULTI);
+	if (CHECK(prog_cnt != 1, "effect_cnt", "exp %d, got %d\n", 1, prog_cnt))
+		goto cleanup;
+
+	/* query the number of effective progs in last cg */
+	err = bpf_prog_query(cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS,
+			     BPF_F_QUERY_EFFECTIVE, NULL, NULL,
+			     &prog_cnt);
+	CHECK_FAIL(err);
+	if (CHECK(prog_cnt != cg_nr, "effect_cnt", "exp %d, got %d\n",
+		  cg_nr, prog_cnt))
+		goto cleanup;
+
+	/* query the effective prog IDs in last cg */
+	err = bpf_prog_query(cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS,
+			     BPF_F_QUERY_EFFECTIVE, NULL, prog_ids,
+			     &prog_cnt);
+	CHECK_FAIL(err);
+	if (CHECK(prog_cnt != cg_nr, "effect_cnt", "exp %d, got %d\n",
+		  cg_nr, prog_cnt))
+		goto cleanup;
+	for (i = 1; i < prog_cnt; i++) {
+		CHECK(prog_ids[i - 1] != prog_ids[i], "prog_id_check",
+		      "idx %d, prev id %d, cur id %d\n",
+		      i, prog_ids[i - 1], prog_ids[i]);
+	}
+
+	/* detach bottom program and ping again */
+	bpf_link__destroy(links[last_cg]);
+	links[last_cg] = NULL;
+
+	ping_and_check(cg_nr - 1, 0);
+
+	/* mix in with non link-based multi-attachments */
+	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
+			      BPF_CGROUP_INET_EGRESS, BPF_F_ALLOW_MULTI);
+	if (CHECK(err, "cg_attach_legacy", "errno=%d\n", errno))
+		goto cleanup;
+	detach_legacy = true;
+
+	links[last_cg] = bpf_program__attach_cgroup(skel->progs.egress,
+						    cgs[last_cg].fd);
+	if (!ASSERT_OK_PTR(links[last_cg], "cg_attach"))
+		goto cleanup;
+
+	ping_and_check(cg_nr + 1, 0);
+
+	/* detach link */
+	bpf_link__destroy(links[last_cg]);
+	links[last_cg] = NULL;
+
+	/* detach legacy */
+	err = bpf_prog_detach2(prog_fd, cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS);
+	if (CHECK(err, "cg_detach_legacy", "errno=%d\n", errno))
+		goto cleanup;
+	detach_legacy = false;
+
+	/* attach legacy exclusive prog attachment */
+	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
+			      BPF_CGROUP_INET_EGRESS, 0);
+	if (CHECK(err, "cg_attach_exclusive", "errno=%d\n", errno))
+		goto cleanup;
+	detach_legacy = true;
+
+	/* attempt to mix in with multi-attach bpf_link */
+	tmp_link = bpf_program__attach_cgroup(skel->progs.egress,
+					      cgs[last_cg].fd);
+	if (!ASSERT_ERR_PTR(tmp_link, "cg_attach_fail")) {
+		bpf_link__destroy(tmp_link);
+		goto cleanup;
+	}
+
+	ping_and_check(cg_nr, 0);
+
+	/* detach */
+	err = bpf_prog_detach2(prog_fd, cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS);
+	if (CHECK(err, "cg_detach_legacy", "errno=%d\n", errno))
+		goto cleanup;
+	detach_legacy = false;
+
+	ping_and_check(cg_nr - 1, 0);
+
+	/* attach back link-based one */
+	links[last_cg] = bpf_program__attach_cgroup(skel->progs.egress,
+						    cgs[last_cg].fd);
+	if (!ASSERT_OK_PTR(links[last_cg], "cg_attach"))
+		goto cleanup;
+
+	ping_and_check(cg_nr, 0);
+
+	/* check legacy exclusive prog can't be attached */
+	err = bpf_prog_attach(prog_fd, cgs[last_cg].fd,
+			      BPF_CGROUP_INET_EGRESS, 0);
+	if (CHECK(!err, "cg_attach_exclusive", "unexpected success")) {
+		bpf_prog_detach2(prog_fd, cgs[last_cg].fd, BPF_CGROUP_INET_EGRESS);
+		goto cleanup;
+	}
+
+	/* replace BPF programs inside their links for all but first link */
+	for (i = 1; i < cg_nr; i++) {
+		err = bpf_link__update_program(links[i], skel->progs.egress_alt);
+		if (CHECK(err, "prog_upd", "link #%d\n", i))
+			goto cleanup;
+	}
+
+	ping_and_check(1, cg_nr - 1);
+
+	/* Attempt program update with wrong expected BPF program */
+	link_upd_opts.old_prog_fd = bpf_program__fd(skel->progs.egress_alt);
+	link_upd_opts.flags = BPF_F_REPLACE;
+	err = bpf_link_update(bpf_link__fd(links[0]),
+			      bpf_program__fd(skel->progs.egress_alt),
+			      &link_upd_opts);
+	if (CHECK(err == 0 || errno != EPERM, "prog_cmpxchg1",
+		  "unexpectedly succeeded, err %d, errno %d\n", err, -errno))
+		goto cleanup;
+
+	/* Compare-exchange single link program from egress to egress_alt */
+	link_upd_opts.old_prog_fd = bpf_program__fd(skel->progs.egress);
+	link_upd_opts.flags = BPF_F_REPLACE;
+	err = bpf_link_update(bpf_link__fd(links[0]),
+			      bpf_program__fd(skel->progs.egress_alt),
+			      &link_upd_opts);
+	if (CHECK(err, "prog_cmpxchg2", "errno %d\n", -errno))
+		goto cleanup;
+
+	/* ping */
+	ping_and_check(0, cg_nr);
+
+	/* close cgroup FDs before detaching links */
+	for (i = 0; i < cg_nr; i++) {
+		if (cgs[i].fd > 0) {
+			close(cgs[i].fd);
+			cgs[i].fd = -1;
+		}
+	}
+
+	/* BPF programs should still get called */
+	ping_and_check(0, cg_nr);
+
+	prog_id = link_info_prog_id(links[0], &info);
+	CHECK(prog_id == 0, "link_info", "failed\n");
+	CHECK(info.cgroup.cgroup_id == 0, "cgroup_id", "unexpected %llu\n", info.cgroup.cgroup_id);
+
+	err = bpf_link__detach(links[0]);
+	if (CHECK(err, "link_detach", "failed %d\n", err))
+		goto cleanup;
+
+	/* cgroup_id should be zero in link_info */
+	prog_id = link_info_prog_id(links[0], &info);
+	CHECK(prog_id == 0, "link_info", "failed\n");
+	CHECK(info.cgroup.cgroup_id != 0, "cgroup_id", "unexpected %llu\n", info.cgroup.cgroup_id);
+
+	/* First BPF program shouldn't be called anymore */
+	ping_and_check(0, cg_nr - 1);
+
+	/* leave cgroup and remove them, don't detach programs */
+	cleanup_cgroup_environment();
+
+	/* BPF programs should have been auto-detached */
+	ping_and_check(0, 0);
+
+cleanup:
+	if (detach_legacy)
+		bpf_prog_detach2(prog_fd, cgs[last_cg].fd,
+				 BPF_CGROUP_INET_EGRESS);
+
+	for (i = 0; i < cg_nr; i++) {
+		bpf_link__destroy(links[i]);
+	}
+	test_cgroup_link__destroy(skel);
+
+	for (i = 0; i < cg_nr; i++) {
+		if (cgs[i].fd > 0)
+			close(cgs[i].fd);
+	}
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_opts.c b/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_opts.c
new file mode 100644
index 000000000000..bb60704a3ef9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_opts.c
@@ -0,0 +1,617 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "cgroup_mprog.skel.h"
+
+static void assert_mprog_count(int cg, int atype, int expected)
+{
+	__u32 count = 0, attach_flags = 0;
+	int err;
+
+	err = bpf_prog_query(cg, atype, 0, &attach_flags,
+			     NULL, &count);
+	ASSERT_EQ(count, expected, "count");
+	ASSERT_EQ(err, 0, "prog_query");
+}
+
+static void test_prog_attach_detach(int atype)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct cgroup_mprog *skel;
+	__u32 prog_ids[10];
+	int cg, err;
+
+	cg = test__join_cgroup("/prog_attach_detach");
+	if (!ASSERT_GE(cg, 0, "join_cgroup /prog_attach_detach"))
+		return;
+
+	skel = cgroup_mprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.getsockopt_1);
+	fd2 = bpf_program__fd(skel->progs.getsockopt_2);
+	fd3 = bpf_program__fd(skel->progs.getsockopt_3);
+	fd4 = bpf_program__fd(skel->progs.getsockopt_4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE | BPF_F_AFTER,
+		.expected_revision = 1,
+	);
+
+	/* ordering: [fd1] */
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE,
+		.expected_revision = 2,
+	);
+
+	/* ordering: [fd2, fd1] */
+	err = bpf_prog_attach_opts(fd2, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER,
+		.relative_fd = fd2,
+		.expected_revision = 3,
+	);
+
+	/* ordering: [fd2, fd3, fd1] */
+	err = bpf_prog_attach_opts(fd3, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI,
+		.expected_revision = 4,
+	);
+
+	/* ordering: [fd2, fd3, fd1, fd4] */
+	err = bpf_prog_attach_opts(fd4, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(cg, atype, 4);
+
+	/* retrieve optq.prog_cnt */
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	/* optq.prog_cnt will be used in below query */
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.prog_ids = prog_ids;
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id1, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids, NULL, "link_ids");
+
+cleanup4:
+	optd.expected_revision = 5;
+	err = bpf_prog_detach_opts(fd4, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 3);
+
+cleanup3:
+	LIBBPF_OPTS_RESET(optd);
+	err = bpf_prog_detach_opts(fd3, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 2);
+
+	/* Check revision after two detach operations */
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	ASSERT_OK(err, "prog_query");
+	ASSERT_EQ(optq.revision, 7, "revision");
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 0);
+
+cleanup:
+	cgroup_mprog__destroy(skel);
+	close(cg);
+}
+
+static void test_link_attach_detach(int atype)
+{
+	LIBBPF_OPTS(bpf_cgroup_opts, opta);
+	LIBBPF_OPTS(bpf_cgroup_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	struct bpf_link *link1, *link2, *link3, *link4;
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct cgroup_mprog *skel;
+	__u32 prog_ids[10];
+	int cg, err;
+
+	cg = test__join_cgroup("/link_attach_detach");
+	if (!ASSERT_GE(cg, 0, "join_cgroup /link_attach_detach"))
+		return;
+
+	skel = cgroup_mprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.getsockopt_1);
+	fd2 = bpf_program__fd(skel->progs.getsockopt_2);
+	fd3 = bpf_program__fd(skel->progs.getsockopt_3);
+	fd4 = bpf_program__fd(skel->progs.getsockopt_4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	/* ordering: [fd1] */
+	link1 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_1, cg, &opta);
+	if (!ASSERT_OK_PTR(link1, "link_attach"))
+		goto cleanup;
+
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE | BPF_F_LINK,
+		.relative_id = id_from_link_fd(bpf_link__fd(link1)),
+		.expected_revision = 2,
+	);
+
+	/* ordering: [fd2, fd1] */
+	link2 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_2, cg, &opta);
+	if (!ASSERT_OK_PTR(link2, "link_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER | BPF_F_LINK,
+		.relative_fd = bpf_link__fd(link2),
+		.expected_revision = 3,
+	);
+
+	/* ordering: [fd2, fd3, fd1] */
+	link3 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_3, cg, &opta);
+	if (!ASSERT_OK_PTR(link3, "link_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 4,
+	);
+
+	/* ordering: [fd2, fd3, fd1, fd4] */
+	link4 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_4, cg, &opta);
+	if (!ASSERT_OK_PTR(link4, "link_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(cg, atype, 4);
+
+	/* retrieve optq.prog_cnt */
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	/* optq.prog_cnt will be used in below query */
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.prog_ids = prog_ids;
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id1, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids, NULL, "link_ids");
+
+cleanup4:
+	bpf_link__destroy(link4);
+	assert_mprog_count(cg, atype, 3);
+
+cleanup3:
+	bpf_link__destroy(link3);
+	assert_mprog_count(cg, atype, 2);
+
+	/* Check revision after two detach operations */
+	err = bpf_prog_query_opts(cg, atype, &optq);
+	ASSERT_OK(err, "prog_query");
+	ASSERT_EQ(optq.revision, 7, "revision");
+
+cleanup2:
+	bpf_link__destroy(link2);
+	assert_mprog_count(cg, atype, 1);
+
+cleanup1:
+	bpf_link__destroy(link1);
+	assert_mprog_count(cg, atype, 0);
+
+cleanup:
+	cgroup_mprog__destroy(skel);
+	close(cg);
+}
+
+static void test_preorder_prog_attach_detach(int atype)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	__u32 fd1, fd2, fd3, fd4;
+	struct cgroup_mprog *skel;
+	int cg, err;
+
+	cg = test__join_cgroup("/preorder_prog_attach_detach");
+	if (!ASSERT_GE(cg, 0, "join_cgroup /preorder_prog_attach_detach"))
+		return;
+
+	skel = cgroup_mprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.getsockopt_1);
+	fd2 = bpf_program__fd(skel->progs.getsockopt_2);
+	fd3 = bpf_program__fd(skel->progs.getsockopt_3);
+	fd4 = bpf_program__fd(skel->progs.getsockopt_4);
+
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI,
+		.expected_revision = 1,
+	);
+
+	/* ordering: [fd1] */
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_PREORDER,
+		.expected_revision = 2,
+	);
+
+	/* ordering: [fd1, fd2] */
+	err = bpf_prog_attach_opts(fd2, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER,
+		.relative_fd = fd2,
+		.expected_revision = 3,
+	);
+
+	err = bpf_prog_attach_opts(fd3, cg, atype, &opta);
+	if (!ASSERT_EQ(err, -EINVAL, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER | BPF_F_PREORDER,
+		.relative_fd = fd2,
+		.expected_revision = 3,
+	);
+
+	/* ordering: [fd1, fd2, fd3] */
+	err = bpf_prog_attach_opts(fd3, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI,
+		.expected_revision = 4,
+	);
+
+	/* ordering: [fd2, fd3, fd1, fd4] */
+	err = bpf_prog_attach_opts(fd4, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(cg, atype, 4);
+
+	err = bpf_prog_detach_opts(fd4, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 3);
+
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 2);
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, cg, atype, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(cg, atype, 0);
+
+cleanup:
+	cgroup_mprog__destroy(skel);
+	close(cg);
+}
+
+static void test_preorder_link_attach_detach(int atype)
+{
+	LIBBPF_OPTS(bpf_cgroup_opts, opta);
+	struct bpf_link *link1, *link2, *link3, *link4;
+	struct cgroup_mprog *skel;
+	__u32 fd2;
+	int cg;
+
+	cg = test__join_cgroup("/preorder_link_attach_detach");
+	if (!ASSERT_GE(cg, 0, "join_cgroup /preorder_link_attach_detach"))
+		return;
+
+	skel = cgroup_mprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd2 = bpf_program__fd(skel->progs.getsockopt_2);
+
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	/* ordering: [fd1] */
+	link1 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_1, cg, &opta);
+	if (!ASSERT_OK_PTR(link1, "link_attach"))
+		goto cleanup;
+
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_PREORDER,
+		.expected_revision = 2,
+	);
+
+	/* ordering: [fd1, fd2] */
+	link2 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_2, cg, &opta);
+	if (!ASSERT_OK_PTR(link2, "link_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd2,
+		.expected_revision = 3,
+	);
+
+	link3 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_3, cg, &opta);
+	if (!ASSERT_ERR_PTR(link3, "link_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER | BPF_F_PREORDER | BPF_F_LINK,
+		.relative_fd = bpf_link__fd(link2),
+		.expected_revision = 3,
+	);
+
+	/* ordering: [fd1, fd2, fd3] */
+	link3 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_3, cg, &opta);
+	if (!ASSERT_OK_PTR(link3, "link_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(cg, atype, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 4,
+	);
+
+	/* ordering: [fd2, fd3, fd1, fd4] */
+	link4 = bpf_program__attach_cgroup_opts(skel->progs.getsockopt_4, cg, &opta);
+	if (!ASSERT_OK_PTR(link4, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(cg, atype, 4);
+
+	bpf_link__destroy(link4);
+	assert_mprog_count(cg, atype, 3);
+
+cleanup3:
+	bpf_link__destroy(link3);
+	assert_mprog_count(cg, atype, 2);
+
+cleanup2:
+	bpf_link__destroy(link2);
+	assert_mprog_count(cg, atype, 1);
+
+cleanup1:
+	bpf_link__destroy(link1);
+	assert_mprog_count(cg, atype, 0);
+
+cleanup:
+	cgroup_mprog__destroy(skel);
+	close(cg);
+}
+
+static void test_invalid_attach_detach(int atype)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	__u32 fd1, fd2, id2;
+	struct cgroup_mprog *skel;
+	int cg, err;
+
+	cg = test__join_cgroup("/invalid_attach_detach");
+	if (!ASSERT_GE(cg, 0, "join_cgroup /invalid_attach_detach"))
+		return;
+
+	skel = cgroup_mprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.getsockopt_1);
+	fd2 = bpf_program__fd(skel->progs.getsockopt_2);
+
+	id2 = id_from_prog_fd(fd2);
+
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE | BPF_F_AFTER,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE | BPF_F_ID,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER | BPF_F_ID,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE | BPF_F_AFTER,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_LINK,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(cg, atype, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_AFTER,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ALLOW_MULTI | BPF_F_REPLACE | BPF_F_AFTER,
+		.replace_prog_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, cg, atype, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(cg, atype, 1);
+cleanup:
+	cgroup_mprog__destroy(skel);
+	close(cg);
+}
+
+void test_cgroup_mprog_opts(void)
+{
+	if (test__start_subtest("prog_attach_detach"))
+		test_prog_attach_detach(BPF_CGROUP_GETSOCKOPT);
+	if (test__start_subtest("link_attach_detach"))
+		test_link_attach_detach(BPF_CGROUP_GETSOCKOPT);
+	if (test__start_subtest("preorder_prog_attach_detach"))
+		test_preorder_prog_attach_detach(BPF_CGROUP_GETSOCKOPT);
+	if (test__start_subtest("preorder_link_attach_detach"))
+		test_preorder_link_attach_detach(BPF_CGROUP_GETSOCKOPT);
+	if (test__start_subtest("invalid_attach_detach"))
+		test_invalid_attach_detach(BPF_CGROUP_GETSOCKOPT);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_ordering.c b/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_ordering.c
new file mode 100644
index 000000000000..a36d2e968bc5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_mprog_ordering.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "cgroup_preorder.skel.h"
+
+static int run_getsockopt_test(int cg_parent, int sock_fd, bool has_relative_fd)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opts);
+	enum bpf_attach_type prog_p_atype, prog_p2_atype;
+	int prog_p_fd, prog_p2_fd;
+	struct cgroup_preorder *skel = NULL;
+	struct bpf_program *prog;
+	__u8 *result, buf;
+	socklen_t optlen = 1;
+	int err = 0;
+
+	skel = cgroup_preorder__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "cgroup_preorder__open_and_load"))
+		return 0;
+
+	LIBBPF_OPTS_RESET(opts);
+	opts.flags = BPF_F_ALLOW_MULTI;
+	prog = skel->progs.parent;
+	prog_p_fd = bpf_program__fd(prog);
+	prog_p_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_p_fd, cg_parent, prog_p_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-parent"))
+		goto close_skel;
+
+	opts.flags = BPF_F_ALLOW_MULTI | BPF_F_BEFORE;
+	if (has_relative_fd)
+		opts.relative_fd = prog_p_fd;
+	prog = skel->progs.parent_2;
+	prog_p2_fd = bpf_program__fd(prog);
+	prog_p2_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_p2_fd, cg_parent, prog_p2_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-parent_2"))
+		goto detach_parent;
+
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (!ASSERT_OK(err, "getsockopt"))
+		goto detach_parent_2;
+
+	result = skel->bss->result;
+	ASSERT_TRUE(result[0] == 4 && result[1] == 3, "result values");
+
+detach_parent_2:
+	ASSERT_OK(bpf_prog_detach2(prog_p2_fd, cg_parent, prog_p2_atype),
+		  "bpf_prog_detach2-parent_2");
+detach_parent:
+	ASSERT_OK(bpf_prog_detach2(prog_p_fd, cg_parent, prog_p_atype),
+		  "bpf_prog_detach2-parent");
+close_skel:
+	cgroup_preorder__destroy(skel);
+	return err;
+}
+
+void test_cgroup_mprog_ordering(void)
+{
+	int cg_parent = -1, sock_fd = -1;
+
+	cg_parent = test__join_cgroup("/parent");
+	if (!ASSERT_GE(cg_parent, 0, "join_cgroup /parent"))
+		goto out;
+
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "socket"))
+		goto out;
+
+	ASSERT_OK(run_getsockopt_test(cg_parent, sock_fd, false), "getsockopt_test_1");
+	ASSERT_OK(run_getsockopt_test(cg_parent, sock_fd, true), "getsockopt_test_2");
+
+out:
+	close(sock_fd);
+	close(cg_parent);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_preorder.c b/tools/testing/selftests/bpf/prog_tests/cgroup_preorder.c
new file mode 100644
index 000000000000..d4d583872fa2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_preorder.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "cgroup_preorder.skel.h"
+
+static int run_getsockopt_test(int cg_parent, int cg_child, int sock_fd, bool all_preorder)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opts);
+	enum bpf_attach_type prog_c_atype, prog_c2_atype, prog_p_atype, prog_p2_atype;
+	int prog_c_fd, prog_c2_fd, prog_p_fd, prog_p2_fd;
+	struct cgroup_preorder *skel = NULL;
+	struct bpf_program *prog;
+	__u8 *result, buf;
+	socklen_t optlen;
+	int err = 0;
+
+	skel = cgroup_preorder__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "cgroup_preorder__open_and_load"))
+		return 0;
+
+	buf = 0x00;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (!ASSERT_OK(err, "setsockopt"))
+		goto close_skel;
+
+	opts.flags = BPF_F_ALLOW_MULTI;
+	if (all_preorder)
+		opts.flags |= BPF_F_PREORDER;
+	prog = skel->progs.child;
+	prog_c_fd = bpf_program__fd(prog);
+	prog_c_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_c_fd, cg_child, prog_c_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-child"))
+		goto close_skel;
+
+	opts.flags = BPF_F_ALLOW_MULTI | BPF_F_PREORDER;
+	prog = skel->progs.child_2;
+	prog_c2_fd = bpf_program__fd(prog);
+	prog_c2_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_c2_fd, cg_child, prog_c2_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-child_2"))
+		goto detach_child;
+
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (!ASSERT_OK(err, "getsockopt"))
+		goto detach_child_2;
+
+	result = skel->bss->result;
+	if (all_preorder)
+		ASSERT_TRUE(result[0] == 1 && result[1] == 2, "child only");
+	else
+		ASSERT_TRUE(result[0] == 2 && result[1] == 1, "child only");
+
+	skel->bss->idx = 0;
+	memset(result, 0, 4);
+
+	opts.flags = BPF_F_ALLOW_MULTI;
+	if (all_preorder)
+		opts.flags |= BPF_F_PREORDER;
+	prog = skel->progs.parent;
+	prog_p_fd = bpf_program__fd(prog);
+	prog_p_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_p_fd, cg_parent, prog_p_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-parent"))
+		goto detach_child_2;
+
+	opts.flags = BPF_F_ALLOW_MULTI | BPF_F_PREORDER;
+	prog = skel->progs.parent_2;
+	prog_p2_fd = bpf_program__fd(prog);
+	prog_p2_atype = bpf_program__expected_attach_type(prog);
+	err = bpf_prog_attach_opts(prog_p2_fd, cg_parent, prog_p2_atype, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_attach_opts-parent_2"))
+		goto detach_parent;
+
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (!ASSERT_OK(err, "getsockopt"))
+		goto detach_parent_2;
+
+	if (all_preorder)
+		ASSERT_TRUE(result[0] == 3 && result[1] == 4 && result[2] == 1 && result[3] == 2,
+			    "parent and child");
+	else
+		ASSERT_TRUE(result[0] == 4 && result[1] == 2 && result[2] == 1 && result[3] == 3,
+			    "parent and child");
+
+detach_parent_2:
+	ASSERT_OK(bpf_prog_detach2(prog_p2_fd, cg_parent, prog_p2_atype),
+		  "bpf_prog_detach2-parent_2");
+detach_parent:
+	ASSERT_OK(bpf_prog_detach2(prog_p_fd, cg_parent, prog_p_atype),
+		  "bpf_prog_detach2-parent");
+detach_child_2:
+	ASSERT_OK(bpf_prog_detach2(prog_c2_fd, cg_child, prog_c2_atype),
+		  "bpf_prog_detach2-child_2");
+detach_child:
+	ASSERT_OK(bpf_prog_detach2(prog_c_fd, cg_child, prog_c_atype),
+		  "bpf_prog_detach2-child");
+close_skel:
+	cgroup_preorder__destroy(skel);
+	return err;
+}
+
+void test_cgroup_preorder(void)
+{
+	int cg_parent = -1, cg_child = -1, sock_fd = -1;
+
+	cg_parent = test__join_cgroup("/parent");
+	if (!ASSERT_GE(cg_parent, 0, "join_cgroup /parent"))
+		goto out;
+
+	cg_child = test__join_cgroup("/parent/child");
+	if (!ASSERT_GE(cg_child, 0, "join_cgroup /parent/child"))
+		goto out;
+
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "socket"))
+		goto out;
+
+	ASSERT_OK(run_getsockopt_test(cg_parent, cg_child, sock_fd, false), "getsockopt_test_1");
+	ASSERT_OK(run_getsockopt_test(cg_parent, cg_child, sock_fd, true), "getsockopt_test_2");
+
+out:
+	close(sock_fd);
+	close(cg_child);
+	close(cg_parent);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c
new file mode 100644
index 000000000000..e1a90c10db8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_direct_packet_access.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "cgroup_skb_direct_packet_access.skel.h"
+
+void test_cgroup_skb_prog_run_direct_packet_access(void)
+{
+	int err;
+	struct cgroup_skb_direct_packet_access *skel;
+	char test_skb[64] = {};
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = test_skb,
+		.data_size_in = sizeof(test_skb),
+	);
+
+	skel = cgroup_skb_direct_packet_access__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "cgroup_skb_direct_packet_access__open_and_load"))
+		return;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.direct_packet_access), &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts err");
+	ASSERT_EQ(topts.retval, 1, "retval");
+
+	ASSERT_NEQ(skel->bss->data_end, 0, "data_end");
+
+	cgroup_skb_direct_packet_access__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c
new file mode 100644
index 000000000000..b9dc4ec655b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_skb_sk_lookup.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <test_progs.h>
+
+#include "network_helpers.h"
+#include "cgroup_skb_sk_lookup_kern.skel.h"
+
+static void run_lookup_test(__u16 *g_serv_port, int out_sk)
+{
+	int serv_sk = -1, in_sk = -1, serv_in_sk = -1, err;
+	struct sockaddr_in6 addr = {};
+	socklen_t addr_len = sizeof(addr);
+	__u32 duration = 0;
+
+	serv_sk = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (CHECK(serv_sk < 0, "start_server", "failed to start server\n"))
+		return;
+
+	err = getsockname(serv_sk, (struct sockaddr *)&addr, &addr_len);
+	if (CHECK(err, "getsockname", "errno %d\n", errno))
+		goto cleanup;
+
+	*g_serv_port = addr.sin6_port;
+
+	/* Client outside of test cgroup should fail to connect by timeout. */
+	err = connect_fd_to_fd(out_sk, serv_sk, 1000);
+	if (CHECK(!err || errno != EINPROGRESS, "connect_fd_to_fd",
+		  "unexpected result err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	/* Client inside test cgroup should connect just fine. */
+	in_sk = connect_to_fd(serv_sk, 0);
+	if (CHECK(in_sk < 0, "connect_to_fd", "errno %d\n", errno))
+		goto cleanup;
+
+	serv_in_sk = accept(serv_sk, NULL, NULL);
+	if (CHECK(serv_in_sk < 0, "accept", "errno %d\n", errno))
+		goto cleanup;
+
+cleanup:
+	close(serv_in_sk);
+	close(in_sk);
+	close(serv_sk);
+}
+
+static void run_cgroup_bpf_test(const char *cg_path, int out_sk)
+{
+	struct cgroup_skb_sk_lookup_kern *skel;
+	struct bpf_link *link;
+	__u32 duration = 0;
+	int cgfd = -1;
+
+	skel = cgroup_skb_sk_lookup_kern__open_and_load();
+	if (CHECK(!skel, "skel_open_load", "open_load failed\n"))
+		return;
+
+	cgfd = test__join_cgroup(cg_path);
+	if (CHECK(cgfd < 0, "cgroup_join", "cgroup setup failed\n"))
+		goto cleanup;
+
+	link = bpf_program__attach_cgroup(skel->progs.ingress_lookup, cgfd);
+	if (!ASSERT_OK_PTR(link, "cgroup_attach"))
+		goto cleanup;
+
+	run_lookup_test(&skel->bss->g_serv_port, out_sk);
+
+	bpf_link__destroy(link);
+
+cleanup:
+	close(cgfd);
+	cgroup_skb_sk_lookup_kern__destroy(skel);
+}
+
+void test_cgroup_skb_sk_lookup(void)
+{
+	const char *cg_path = "/foo";
+	int out_sk;
+
+	/* Create a socket before joining testing cgroup so that its cgroup id
+	 * differs from that of testing cgroup. Moving selftests process to
+	 * testing cgroup won't change cgroup id of an already created socket.
+	 */
+	out_sk = socket(AF_INET6, SOCK_STREAM, 0);
+	if (CHECK_FAIL(out_sk < 0))
+		return;
+
+	run_cgroup_bpf_test(cg_path, out_sk);
+
+	close(out_sk);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c b/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c
new file mode 100644
index 000000000000..cf395715ced4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_storage.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "cgroup_storage.skel.h"
+
+#define TEST_CGROUP "/test-bpf-cgroup-storage-buf/"
+#define TEST_NS "cgroup_storage_ns"
+#define PING_CMD "ping localhost -c 1 -W 1 -q"
+
+static int setup_network(struct nstoken **token)
+{
+	SYS(fail, "ip netns add %s", TEST_NS);
+	*token = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(*token, "open netns"))
+		goto cleanup_ns;
+	SYS(cleanup_ns, "ip link set lo up");
+
+	return 0;
+
+cleanup_ns:
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+fail:
+	return -1;
+}
+
+static void cleanup_network(struct nstoken *ns)
+{
+	close_netns(ns);
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+}
+
+void test_cgroup_storage(void)
+{
+	struct bpf_cgroup_storage_key key;
+	struct cgroup_storage *skel;
+	struct nstoken *ns = NULL;
+	unsigned long long value;
+	int cgroup_fd;
+	int err;
+
+	cgroup_fd = cgroup_setup_and_join(TEST_CGROUP);
+	if (!ASSERT_OK_FD(cgroup_fd, "create cgroup"))
+		return;
+
+	if (!ASSERT_OK(setup_network(&ns), "setup network"))
+		goto cleanup_cgroup;
+
+	skel = cgroup_storage__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "load program"))
+		goto cleanup_network;
+
+	skel->links.bpf_prog =
+		bpf_program__attach_cgroup(skel->progs.bpf_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.bpf_prog, "attach program"))
+		goto cleanup_progs;
+
+	/* Check that one out of every two packets is dropped */
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_OK(err, "first ping");
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_NEQ(err, 0, "second ping");
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_OK(err, "third ping");
+
+	err = bpf_map__get_next_key(skel->maps.cgroup_storage, NULL, &key,
+				    sizeof(key));
+	if (!ASSERT_OK(err, "get first key"))
+		goto cleanup_progs;
+	err = bpf_map__lookup_elem(skel->maps.cgroup_storage, &key, sizeof(key),
+				   &value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "first packet count read"))
+		goto cleanup_progs;
+
+	/* Add one to the packet counter, check again packet filtering */
+	value++;
+	err = bpf_map__update_elem(skel->maps.cgroup_storage, &key, sizeof(key),
+				   &value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "increment packet counter"))
+		goto cleanup_progs;
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_OK(err, "fourth ping");
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_NEQ(err, 0, "fifth ping");
+	err = SYS_NOFAIL(PING_CMD);
+	ASSERT_OK(err, "sixth ping");
+
+cleanup_progs:
+	cgroup_storage__destroy(skel);
+cleanup_network:
+	cleanup_network(ns);
+cleanup_cgroup:
+	close(cgroup_fd);
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_tcp_skb.c b/tools/testing/selftests/bpf/prog_tests/cgroup_tcp_skb.c
new file mode 100644
index 000000000000..a1542faf7873
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_tcp_skb.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Facebook */
+#include <test_progs.h>
+#include <linux/in6.h>
+#include <sys/socket.h>
+#include <sched.h>
+#include <unistd.h>
+#include "cgroup_helpers.h"
+#include "testing_helpers.h"
+#include "cgroup_tcp_skb.skel.h"
+#include "cgroup_tcp_skb.h"
+#include "network_helpers.h"
+
+#define CGROUP_TCP_SKB_PATH "/test_cgroup_tcp_skb"
+
+static int install_filters(int cgroup_fd,
+			   struct bpf_link **egress_link,
+			   struct bpf_link **ingress_link,
+			   struct bpf_program *egress_prog,
+			   struct bpf_program *ingress_prog,
+			   struct cgroup_tcp_skb *skel)
+{
+	/* Prepare filters */
+	skel->bss->g_sock_state = 0;
+	skel->bss->g_unexpected = 0;
+	*egress_link =
+		bpf_program__attach_cgroup(egress_prog,
+					   cgroup_fd);
+	if (!ASSERT_OK_PTR(egress_link, "egress_link"))
+		return -1;
+	*ingress_link =
+		bpf_program__attach_cgroup(ingress_prog,
+					   cgroup_fd);
+	if (!ASSERT_OK_PTR(ingress_link, "ingress_link"))
+		return -1;
+
+	return 0;
+}
+
+static void uninstall_filters(struct bpf_link **egress_link,
+			      struct bpf_link **ingress_link)
+{
+	bpf_link__destroy(*egress_link);
+	*egress_link = NULL;
+	bpf_link__destroy(*ingress_link);
+	*ingress_link = NULL;
+}
+
+static int create_client_sock_v6(void)
+{
+	int fd;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd < 0) {
+		perror("socket");
+		return -1;
+	}
+
+	return fd;
+}
+
+/* Connect to the server in a cgroup from the outside of the cgroup. */
+static int talk_to_cgroup(int *client_fd, int *listen_fd, int *service_fd,
+			  struct cgroup_tcp_skb *skel)
+{
+	int err, cp;
+	char buf[5];
+	int port;
+
+	/* Create client & server socket */
+	err = join_root_cgroup();
+	if (!ASSERT_OK(err, "join_root_cgroup"))
+		return -1;
+	*client_fd = create_client_sock_v6();
+	if (!ASSERT_GE(*client_fd, 0, "client_fd"))
+		return -1;
+	err = join_cgroup(CGROUP_TCP_SKB_PATH);
+	if (!ASSERT_OK(err, "join_cgroup"))
+		return -1;
+	*listen_fd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(*listen_fd, 0, "listen_fd"))
+		return -1;
+	port = get_socket_local_port(*listen_fd);
+	if (!ASSERT_GE(port, 0, "get_socket_local_port"))
+		return -1;
+	skel->bss->g_sock_port = ntohs(port);
+
+	/* Connect client to server */
+	err = connect_fd_to_fd(*client_fd, *listen_fd, 0);
+	if (!ASSERT_OK(err, "connect_fd_to_fd"))
+		return -1;
+	*service_fd = accept(*listen_fd, NULL, NULL);
+	if (!ASSERT_GE(*service_fd, 0, "service_fd"))
+		return -1;
+	err = join_root_cgroup();
+	if (!ASSERT_OK(err, "join_root_cgroup"))
+		return -1;
+	cp = write(*client_fd, "hello", 5);
+	if (!ASSERT_EQ(cp, 5, "write"))
+		return -1;
+	cp = read(*service_fd, buf, 5);
+	if (!ASSERT_EQ(cp, 5, "read"))
+		return -1;
+
+	return 0;
+}
+
+/* Connect to the server out of a cgroup from inside the cgroup. */
+static int talk_to_outside(int *client_fd, int *listen_fd, int *service_fd,
+			   struct cgroup_tcp_skb *skel)
+
+{
+	int err, cp;
+	char buf[5];
+	int port;
+
+	/* Create client & server socket */
+	err = join_root_cgroup();
+	if (!ASSERT_OK(err, "join_root_cgroup"))
+		return -1;
+	*listen_fd = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(*listen_fd, 0, "listen_fd"))
+		return -1;
+	err = join_cgroup(CGROUP_TCP_SKB_PATH);
+	if (!ASSERT_OK(err, "join_cgroup"))
+		return -1;
+	*client_fd = create_client_sock_v6();
+	if (!ASSERT_GE(*client_fd, 0, "client_fd"))
+		return -1;
+	err = join_root_cgroup();
+	if (!ASSERT_OK(err, "join_root_cgroup"))
+		return -1;
+	port = get_socket_local_port(*listen_fd);
+	if (!ASSERT_GE(port, 0, "get_socket_local_port"))
+		return -1;
+	skel->bss->g_sock_port = ntohs(port);
+
+	/* Connect client to server */
+	err = connect_fd_to_fd(*client_fd, *listen_fd, 0);
+	if (!ASSERT_OK(err, "connect_fd_to_fd"))
+		return -1;
+	*service_fd = accept(*listen_fd, NULL, NULL);
+	if (!ASSERT_GE(*service_fd, 0, "service_fd"))
+		return -1;
+	cp = write(*client_fd, "hello", 5);
+	if (!ASSERT_EQ(cp, 5, "write"))
+		return -1;
+	cp = read(*service_fd, buf, 5);
+	if (!ASSERT_EQ(cp, 5, "read"))
+		return -1;
+
+	return 0;
+}
+
+static int close_connection(int *closing_fd, int *peer_fd, int *listen_fd,
+			    struct cgroup_tcp_skb *skel)
+{
+	__u32 saved_packet_count = 0;
+	int err;
+	int i;
+
+	/* Wait for ACKs to be sent */
+	saved_packet_count = skel->bss->g_packet_count;
+	usleep(100000);		/* 0.1s */
+	for (i = 0;
+	     skel->bss->g_packet_count != saved_packet_count && i < 10;
+	     i++) {
+		saved_packet_count = skel->bss->g_packet_count;
+		usleep(100000);	/* 0.1s */
+	}
+	if (!ASSERT_EQ(skel->bss->g_packet_count, saved_packet_count,
+		       "packet_count"))
+		return -1;
+
+	skel->bss->g_packet_count = 0;
+	saved_packet_count = 0;
+
+	/* Half shutdown to make sure the closing socket having a chance to
+	 * receive a FIN from the peer.
+	 */
+	err = shutdown(*closing_fd, SHUT_WR);
+	if (!ASSERT_OK(err, "shutdown closing_fd"))
+		return -1;
+
+	/* Wait for FIN and the ACK of the FIN to be observed */
+	for (i = 0;
+	     skel->bss->g_packet_count < saved_packet_count + 2 && i < 10;
+	     i++)
+		usleep(100000);	/* 0.1s */
+	if (!ASSERT_GE(skel->bss->g_packet_count, saved_packet_count + 2,
+		       "packet_count"))
+		return -1;
+
+	saved_packet_count = skel->bss->g_packet_count;
+
+	/* Fully shutdown the connection */
+	err = close(*peer_fd);
+	if (!ASSERT_OK(err, "close peer_fd"))
+		return -1;
+	*peer_fd = -1;
+
+	/* Wait for FIN and the ACK of the FIN to be observed */
+	for (i = 0;
+	     skel->bss->g_packet_count < saved_packet_count + 2 && i < 10;
+	     i++)
+		usleep(100000);	/* 0.1s */
+	if (!ASSERT_GE(skel->bss->g_packet_count, saved_packet_count + 2,
+		       "packet_count"))
+		return -1;
+
+	err = close(*closing_fd);
+	if (!ASSERT_OK(err, "close closing_fd"))
+		return -1;
+	*closing_fd = -1;
+
+	close(*listen_fd);
+	*listen_fd = -1;
+
+	return 0;
+}
+
+/* This test case includes four scenarios:
+ * 1. Connect to the server from outside the cgroup and close the connection
+ *    from outside the cgroup.
+ * 2. Connect to the server from outside the cgroup and close the connection
+ *    from inside the cgroup.
+ * 3. Connect to the server from inside the cgroup and close the connection
+ *    from outside the cgroup.
+ * 4. Connect to the server from inside the cgroup and close the connection
+ *    from inside the cgroup.
+ *
+ * The test case is to verify that cgroup_skb/{egress,ingress} filters
+ * receive expected packets including SYN, SYN/ACK, ACK, FIN, and FIN/ACK.
+ */
+void test_cgroup_tcp_skb(void)
+{
+	struct bpf_link *ingress_link = NULL;
+	struct bpf_link *egress_link = NULL;
+	int client_fd = -1, listen_fd = -1;
+	struct cgroup_tcp_skb *skel;
+	int service_fd = -1;
+	int cgroup_fd = -1;
+	int err;
+
+	skel = cgroup_tcp_skb__open_and_load();
+	if (!ASSERT_OK(!skel, "skel_open_load"))
+		return;
+
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "setup_cgroup_environment"))
+		goto cleanup;
+
+	cgroup_fd = create_and_get_cgroup(CGROUP_TCP_SKB_PATH);
+	if (!ASSERT_GE(cgroup_fd, 0, "cgroup_fd"))
+		goto cleanup;
+
+	/* Scenario 1 */
+	err = install_filters(cgroup_fd, &egress_link, &ingress_link,
+			      skel->progs.server_egress,
+			      skel->progs.server_ingress,
+			      skel);
+	if (!ASSERT_OK(err, "install_filters"))
+		goto cleanup;
+
+	err = talk_to_cgroup(&client_fd, &listen_fd, &service_fd, skel);
+	if (!ASSERT_OK(err, "talk_to_cgroup"))
+		goto cleanup;
+
+	err = close_connection(&client_fd, &service_fd, &listen_fd, skel);
+	if (!ASSERT_OK(err, "close_connection"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->g_unexpected, 0, "g_unexpected");
+	ASSERT_EQ(skel->bss->g_sock_state, CLOSED, "g_sock_state");
+
+	uninstall_filters(&egress_link, &ingress_link);
+
+	/* Scenario 2 */
+	err = install_filters(cgroup_fd, &egress_link, &ingress_link,
+			      skel->progs.server_egress_srv,
+			      skel->progs.server_ingress_srv,
+			      skel);
+
+	err = talk_to_cgroup(&client_fd, &listen_fd, &service_fd, skel);
+	if (!ASSERT_OK(err, "talk_to_cgroup"))
+		goto cleanup;
+
+	err = close_connection(&service_fd, &client_fd, &listen_fd, skel);
+	if (!ASSERT_OK(err, "close_connection"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->g_unexpected, 0, "g_unexpected");
+	ASSERT_EQ(skel->bss->g_sock_state, TIME_WAIT, "g_sock_state");
+
+	uninstall_filters(&egress_link, &ingress_link);
+
+	/* Scenario 3 */
+	err = install_filters(cgroup_fd, &egress_link, &ingress_link,
+			      skel->progs.client_egress_srv,
+			      skel->progs.client_ingress_srv,
+			      skel);
+
+	err = talk_to_outside(&client_fd, &listen_fd, &service_fd, skel);
+	if (!ASSERT_OK(err, "talk_to_outside"))
+		goto cleanup;
+
+	err = close_connection(&service_fd, &client_fd, &listen_fd, skel);
+	if (!ASSERT_OK(err, "close_connection"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->g_unexpected, 0, "g_unexpected");
+	ASSERT_EQ(skel->bss->g_sock_state, CLOSED, "g_sock_state");
+
+	uninstall_filters(&egress_link, &ingress_link);
+
+	/* Scenario 4 */
+	err = install_filters(cgroup_fd, &egress_link, &ingress_link,
+			      skel->progs.client_egress,
+			      skel->progs.client_ingress,
+			      skel);
+
+	err = talk_to_outside(&client_fd, &listen_fd, &service_fd, skel);
+	if (!ASSERT_OK(err, "talk_to_outside"))
+		goto cleanup;
+
+	err = close_connection(&client_fd, &service_fd, &listen_fd, skel);
+	if (!ASSERT_OK(err, "close_connection"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->g_unexpected, 0, "g_unexpected");
+	ASSERT_EQ(skel->bss->g_sock_state, TIME_WAIT, "g_sock_state");
+
+	uninstall_filters(&egress_link, &ingress_link);
+
+cleanup:
+	close(client_fd);
+	close(listen_fd);
+	close(service_fd);
+	close(cgroup_fd);
+	bpf_link__destroy(egress_link);
+	bpf_link__destroy(ingress_link);
+	cleanup_cgroup_environment();
+	cgroup_tcp_skb__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_v1v2.c b/tools/testing/selftests/bpf/prog_tests/cgroup_v1v2.c
new file mode 100644
index 000000000000..37c1cc52ed98
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_v1v2.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include "connect4_dropper.skel.h"
+
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+static int run_test(int cgroup_fd, int server_fd, bool classid)
+{
+	struct connect4_dropper *skel;
+	int fd, err = 0, port;
+
+	skel = connect4_dropper__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return -1;
+
+	port = get_socket_local_port(server_fd);
+	if (!ASSERT_GE(port, 0, "get_socket_local_port"))
+		return -1;
+
+	skel->bss->port = ntohs(port);
+
+	skel->links.connect_v4_dropper =
+		bpf_program__attach_cgroup(skel->progs.connect_v4_dropper,
+					   cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.connect_v4_dropper, "prog_attach")) {
+		err = -1;
+		goto out;
+	}
+
+	if (classid && !ASSERT_OK(join_classid(), "join_classid")) {
+		err = -1;
+		goto out;
+	}
+
+	errno = 0;
+	fd = connect_to_fd_opts(server_fd, NULL);
+	if (fd >= 0) {
+		log_err("Unexpected success to connect to server");
+		err = -1;
+		close(fd);
+	} else if (errno != EPERM) {
+		log_err("Unexpected errno from connect to server");
+		err = -1;
+	}
+out:
+	connect4_dropper__destroy(skel);
+	return err;
+}
+
+void test_cgroup_v1v2(void)
+{
+	struct network_helper_opts opts = {};
+	int server_fd, client_fd, cgroup_fd;
+
+	/* Step 1: Check base connectivity works without any BPF. */
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "server_fd"))
+		return;
+	client_fd = connect_to_fd_opts(server_fd, &opts);
+	if (!ASSERT_GE(client_fd, 0, "client_fd")) {
+		close(server_fd);
+		return;
+	}
+	close(client_fd);
+	close(server_fd);
+
+	/* Step 2: Check BPF policy prog attached to cgroups drops connectivity. */
+	cgroup_fd = test__join_cgroup("/connect_dropper");
+	if (!ASSERT_GE(cgroup_fd, 0, "cgroup_fd"))
+		return;
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "server_fd")) {
+		close(cgroup_fd);
+		return;
+	}
+	ASSERT_OK(run_test(cgroup_fd, server_fd, false), "cgroup-v2-only");
+	setup_classid_environment();
+	set_classid();
+	ASSERT_OK(run_test(cgroup_fd, server_fd, true), "cgroup-v1v2");
+	cleanup_classid_environment();
+	close(server_fd);
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgroup_xattr.c b/tools/testing/selftests/bpf/prog_tests/cgroup_xattr.c
new file mode 100644
index 000000000000..5ad904e9d15d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgroup_xattr.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#include "read_cgroupfs_xattr.skel.h"
+#include "cgroup_read_xattr.skel.h"
+
+#define CGROUP_FS_PARENT "foo/"
+#define CGROUP_FS_CHILD CGROUP_FS_PARENT "bar/"
+#define TMP_FILE "/tmp/selftests_cgroup_xattr"
+
+static const char xattr_value_a[] = "bpf_selftest_value_a";
+static const char xattr_value_b[] = "bpf_selftest_value_b";
+static const char xattr_name[] = "user.bpf_test";
+
+static void test_read_cgroup_xattr(void)
+{
+	int tmp_fd, parent_cgroup_fd = -1, child_cgroup_fd = -1;
+	struct read_cgroupfs_xattr *skel = NULL;
+
+	parent_cgroup_fd = test__join_cgroup(CGROUP_FS_PARENT);
+	if (!ASSERT_OK_FD(parent_cgroup_fd, "create parent cgroup"))
+		return;
+	if (!ASSERT_OK(set_cgroup_xattr(CGROUP_FS_PARENT, xattr_name, xattr_value_a),
+		       "set parent xattr"))
+		goto out;
+
+	child_cgroup_fd = test__join_cgroup(CGROUP_FS_CHILD);
+	if (!ASSERT_OK_FD(child_cgroup_fd, "create child cgroup"))
+		goto out;
+	if (!ASSERT_OK(set_cgroup_xattr(CGROUP_FS_CHILD, xattr_name, xattr_value_b),
+		       "set child xattr"))
+		goto out;
+
+	skel = read_cgroupfs_xattr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "read_cgroupfs_xattr__open_and_load"))
+		goto out;
+
+	skel->bss->target_pid = sys_gettid();
+
+	if (!ASSERT_OK(read_cgroupfs_xattr__attach(skel), "read_cgroupfs_xattr__attach"))
+		goto out;
+
+	tmp_fd = open(TMP_FILE, O_RDONLY | O_CREAT);
+	ASSERT_OK_FD(tmp_fd, "open tmp file");
+	close(tmp_fd);
+
+	ASSERT_TRUE(skel->bss->found_value_a, "found_value_a");
+	ASSERT_TRUE(skel->bss->found_value_b, "found_value_b");
+
+out:
+	close(child_cgroup_fd);
+	close(parent_cgroup_fd);
+	read_cgroupfs_xattr__destroy(skel);
+	unlink(TMP_FILE);
+}
+
+void test_cgroup_xattr(void)
+{
+	RUN_TESTS(cgroup_read_xattr);
+
+	if (test__start_subtest("read_cgroupfs_xattr"))
+		test_read_cgroup_xattr();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgrp_kfunc.c b/tools/testing/selftests/bpf/prog_tests/cgrp_kfunc.c
new file mode 100644
index 000000000000..4b42fbc96efc
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgrp_kfunc.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#define _GNU_SOURCE
+#include <cgroup_helpers.h>
+#include <test_progs.h>
+#include <sched.h>
+#include <sys/wait.h>
+
+#include "cgrp_kfunc_failure.skel.h"
+#include "cgrp_kfunc_success.skel.h"
+
+static struct cgrp_kfunc_success *open_load_cgrp_kfunc_skel(void)
+{
+	struct cgrp_kfunc_success *skel;
+	int err;
+
+	skel = cgrp_kfunc_success__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return NULL;
+
+	skel->bss->pid = getpid();
+
+	err = cgrp_kfunc_success__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	return skel;
+
+cleanup:
+	cgrp_kfunc_success__destroy(skel);
+	return NULL;
+}
+
+static int mkdir_rm_test_dir(void)
+{
+	int fd;
+	const char *cgrp_path = "cgrp_kfunc";
+
+	fd = create_and_get_cgroup(cgrp_path);
+	if (!ASSERT_GT(fd, 0, "mkdir_cgrp_fd"))
+		return -1;
+
+	close(fd);
+	remove_cgroup(cgrp_path);
+
+	return 0;
+}
+
+static void run_success_test(const char *prog_name)
+{
+	struct cgrp_kfunc_success *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link = NULL;
+
+	skel = open_load_cgrp_kfunc_skel();
+	if (!ASSERT_OK_PTR(skel, "open_load_skel"))
+		return;
+
+	if (!ASSERT_OK(skel->bss->err, "pre_mkdir_err"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "attached_link"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->invocations, 0, "pre_rmdir_count");
+	if (!ASSERT_OK(mkdir_rm_test_dir(), "cgrp_mkdir"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->invocations, 1, "post_rmdir_count");
+	ASSERT_OK(skel->bss->err, "post_rmdir_err");
+
+cleanup:
+	bpf_link__destroy(link);
+	cgrp_kfunc_success__destroy(skel);
+}
+
+static const char * const success_tests[] = {
+	"test_cgrp_acquire_release_argument",
+	"test_cgrp_acquire_leave_in_map",
+	"test_cgrp_xchg_release",
+	"test_cgrp_get_release",
+	"test_cgrp_get_ancestors",
+	"test_cgrp_from_id",
+};
+
+static void test_cgrp_from_id_ns(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct cgrp_kfunc_success *skel;
+	struct bpf_program *prog;
+	int pid, pipe_fd[2];
+
+	skel = open_load_cgrp_kfunc_skel();
+	if (!ASSERT_OK_PTR(skel, "open_load_skel"))
+		return;
+
+	if (!ASSERT_OK(skel->bss->err, "pre_mkdir_err"))
+		goto cleanup;
+
+	prog = skel->progs.test_cgrp_from_id_ns;
+
+	if (!ASSERT_OK(pipe(pipe_fd), "pipe"))
+		goto cleanup;
+
+	pid = fork();
+	if (!ASSERT_GE(pid, 0, "fork result")) {
+		close(pipe_fd[0]);
+		close(pipe_fd[1]);
+		goto cleanup;
+	}
+
+	if (pid == 0) {
+		int ret = 0;
+
+		close(pipe_fd[0]);
+
+		if (!ASSERT_GE(cgroup_setup_and_join("cgrp_from_id_ns"), 0, "join cgroup"))
+			exit(1);
+
+		if (!ASSERT_OK(unshare(CLONE_NEWCGROUP), "unshare cgns"))
+			exit(1);
+
+		ret = bpf_prog_test_run_opts(bpf_program__fd(prog), &opts);
+		if (!ASSERT_OK(ret, "test run ret"))
+			exit(1);
+
+		if (!ASSERT_OK(opts.retval, "test run retval"))
+			exit(1);
+
+		if (!ASSERT_EQ(write(pipe_fd[1], &ret, sizeof(ret)), sizeof(ret), "write pipe"))
+			exit(1);
+
+		exit(0);
+	} else {
+		int res;
+
+		close(pipe_fd[1]);
+
+		ASSERT_EQ(read(pipe_fd[0], &res, sizeof(res)), sizeof(res), "read res");
+		ASSERT_EQ(waitpid(pid, NULL, 0), pid, "wait on child");
+
+		remove_cgroup_pid("cgrp_from_id_ns", pid);
+
+		ASSERT_OK(res, "result from run");
+	}
+
+	close(pipe_fd[0]);
+cleanup:
+	cgrp_kfunc_success__destroy(skel);
+}
+
+void test_cgrp_kfunc(void)
+{
+	int i, err;
+
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "cgrp_env_setup"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(success_tests); i++) {
+		if (!test__start_subtest(success_tests[i]))
+			continue;
+
+		run_success_test(success_tests[i]);
+	}
+
+	if (test__start_subtest("test_cgrp_from_id_ns"))
+		test_cgrp_from_id_ns();
+
+	RUN_TESTS(cgrp_kfunc_failure);
+
+cleanup:
+	cleanup_cgroup_environment();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c b/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c
new file mode 100644
index 000000000000..9015e2c2ab12
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cgrp_local_storage.c
@@ -0,0 +1,361 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates.*/
+
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <test_progs.h>
+#include "cgrp_ls_tp_btf.skel.h"
+#include "cgrp_ls_recursion.skel.h"
+#include "cgrp_ls_attach_cgroup.skel.h"
+#include "cgrp_ls_negative.skel.h"
+#include "cgrp_ls_sleepable.skel.h"
+#include "network_helpers.h"
+#include "cgroup_helpers.h"
+
+struct socket_cookie {
+	__u64 cookie_key;
+	__u64 cookie_value;
+};
+
+static bool is_cgroup1;
+static int target_hid;
+
+#define CGROUP_MODE_SET(skel)			\
+{						\
+	skel->bss->is_cgroup1 = is_cgroup1;	\
+	skel->bss->target_hid = target_hid;	\
+}
+
+static void cgroup_mode_value_init(bool cgroup, int hid)
+{
+	is_cgroup1 = cgroup;
+	target_hid = hid;
+}
+
+static void test_tp_btf(int cgroup_fd)
+{
+	struct cgrp_ls_tp_btf *skel;
+	long val1 = 1, val2 = 0;
+	int err;
+
+	skel = cgrp_ls_tp_btf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+
+	/* populate a value in map_b */
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.map_b), &cgroup_fd, &val1, BPF_ANY);
+	if (!ASSERT_OK(err, "map_update_elem"))
+		goto out;
+
+	/* check value */
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.map_b), &cgroup_fd, &val2);
+	if (!ASSERT_OK(err, "map_lookup_elem"))
+		goto out;
+	if (!ASSERT_EQ(val2, 1, "map_lookup_elem, invalid val"))
+		goto out;
+
+	/* delete value */
+	err = bpf_map_delete_elem(bpf_map__fd(skel->maps.map_b), &cgroup_fd);
+	if (!ASSERT_OK(err, "map_delete_elem"))
+		goto out;
+
+	skel->bss->target_pid = sys_gettid();
+
+	err = cgrp_ls_tp_btf__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	sys_gettid();
+	sys_gettid();
+
+	skel->bss->target_pid = 0;
+
+	/* 3x syscalls: 1x attach and 2x gettid */
+	ASSERT_EQ(skel->bss->enter_cnt, 3, "enter_cnt");
+	ASSERT_EQ(skel->bss->exit_cnt, 3, "exit_cnt");
+	ASSERT_EQ(skel->bss->mismatch_cnt, 0, "mismatch_cnt");
+out:
+	cgrp_ls_tp_btf__destroy(skel);
+}
+
+static void test_attach_cgroup(int cgroup_fd)
+{
+	int server_fd = 0, client_fd = 0, err = 0;
+	socklen_t addr_len = sizeof(struct sockaddr_in6);
+	struct cgrp_ls_attach_cgroup *skel;
+	__u32 cookie_expected_value;
+	struct sockaddr_in6 addr;
+	struct socket_cookie val;
+
+	skel = cgrp_ls_attach_cgroup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->links.set_cookie = bpf_program__attach_cgroup(
+		skel->progs.set_cookie, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.set_cookie, "prog_attach"))
+		goto out;
+
+	skel->links.update_cookie_sockops = bpf_program__attach_cgroup(
+		skel->progs.update_cookie_sockops, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.update_cookie_sockops, "prog_attach"))
+		goto out;
+
+	skel->links.update_cookie_tracing = bpf_program__attach(
+		skel->progs.update_cookie_tracing);
+	if (!ASSERT_OK_PTR(skel->links.update_cookie_tracing, "prog_attach"))
+		goto out;
+
+	server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto out;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto close_server_fd;
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.socket_cookies),
+				  &cgroup_fd, &val);
+	if (!ASSERT_OK(err, "map_lookup(socket_cookies)"))
+		goto close_client_fd;
+
+	err = getsockname(client_fd, (struct sockaddr *)&addr, &addr_len);
+	if (!ASSERT_OK(err, "getsockname"))
+		goto close_client_fd;
+
+	cookie_expected_value = (ntohs(addr.sin6_port) << 8) | 0xFF;
+	ASSERT_EQ(val.cookie_value, cookie_expected_value, "cookie_value");
+
+close_client_fd:
+	close(client_fd);
+close_server_fd:
+	close(server_fd);
+out:
+	cgrp_ls_attach_cgroup__destroy(skel);
+}
+
+static void test_recursion(int cgroup_fd)
+{
+	struct cgrp_ls_recursion *skel;
+	int err;
+
+	skel = cgrp_ls_recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+
+	err = cgrp_ls_recursion__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	/* trigger sys_enter, make sure it does not cause deadlock */
+	sys_gettid();
+
+out:
+	cgrp_ls_recursion__destroy(skel);
+}
+
+static void test_negative(void)
+{
+	struct cgrp_ls_negative *skel;
+
+	skel = cgrp_ls_negative__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "skel_open_and_load")) {
+		cgrp_ls_negative__destroy(skel);
+		return;
+	}
+}
+
+static void test_cgroup_iter_sleepable(int cgroup_fd, __u64 cgroup_id)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	union bpf_iter_link_info linfo;
+	struct cgrp_ls_sleepable *skel;
+	struct bpf_link *link;
+	int err, iter_fd;
+	char buf[16];
+
+	skel = cgrp_ls_sleepable__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+
+	bpf_program__set_autoload(skel->progs.cgroup_iter, true);
+	err = cgrp_ls_sleepable__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	memset(&linfo, 0, sizeof(linfo));
+	linfo.cgroup.cgroup_fd = cgroup_fd;
+	linfo.cgroup.order = BPF_CGROUP_ITER_SELF_ONLY;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.cgroup_iter, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "iter_create"))
+		goto out;
+
+	/* trigger the program run */
+	(void)read(iter_fd, buf, sizeof(buf));
+
+	ASSERT_EQ(skel->bss->cgroup_id, cgroup_id, "cgroup_id");
+
+	close(iter_fd);
+out:
+	cgrp_ls_sleepable__destroy(skel);
+}
+
+static void test_yes_rcu_lock(__u64 cgroup_id)
+{
+	struct cgrp_ls_sleepable *skel;
+	int err;
+
+	skel = cgrp_ls_sleepable__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+	skel->bss->target_pid = sys_gettid();
+
+	bpf_program__set_autoload(skel->progs.yes_rcu_lock, true);
+	err = cgrp_ls_sleepable__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	err = cgrp_ls_sleepable__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->cgroup_id, cgroup_id, "cgroup_id");
+out:
+	cgrp_ls_sleepable__destroy(skel);
+}
+
+static void test_no_rcu_lock(void)
+{
+	struct cgrp_ls_sleepable *skel;
+	int err;
+
+	skel = cgrp_ls_sleepable__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+
+	bpf_program__set_autoload(skel->progs.no_rcu_lock, true);
+	err = cgrp_ls_sleepable__load(skel);
+	ASSERT_ERR(err, "skel_load");
+
+	cgrp_ls_sleepable__destroy(skel);
+}
+
+static void test_cgrp1_no_rcu_lock(void)
+{
+	struct cgrp_ls_sleepable *skel;
+	int err;
+
+	skel = cgrp_ls_sleepable__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	CGROUP_MODE_SET(skel);
+
+	bpf_program__set_autoload(skel->progs.cgrp1_no_rcu_lock, true);
+	err = cgrp_ls_sleepable__load(skel);
+	ASSERT_OK(err, "skel_load");
+
+	cgrp_ls_sleepable__destroy(skel);
+}
+
+static void cgrp2_local_storage(void)
+{
+	__u64 cgroup_id;
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/cgrp_local_storage");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /cgrp_local_storage"))
+		return;
+
+	cgroup_mode_value_init(0, -1);
+
+	cgroup_id = get_cgroup_id("/cgrp_local_storage");
+	if (test__start_subtest("tp_btf"))
+		test_tp_btf(cgroup_fd);
+	if (test__start_subtest("attach_cgroup"))
+		test_attach_cgroup(cgroup_fd);
+	if (test__start_subtest("recursion"))
+		test_recursion(cgroup_fd);
+	if (test__start_subtest("negative"))
+		test_negative();
+	if (test__start_subtest("cgroup_iter_sleepable"))
+		test_cgroup_iter_sleepable(cgroup_fd, cgroup_id);
+	if (test__start_subtest("yes_rcu_lock"))
+		test_yes_rcu_lock(cgroup_id);
+	if (test__start_subtest("no_rcu_lock"))
+		test_no_rcu_lock();
+
+	close(cgroup_fd);
+}
+
+static void cgrp1_local_storage(void)
+{
+	int cgrp1_fd, cgrp1_hid, cgrp1_id, err;
+
+	/* Setup cgroup1 hierarchy */
+	err = setup_classid_environment();
+	if (!ASSERT_OK(err, "setup_classid_environment"))
+		return;
+
+	err = join_classid();
+	if (!ASSERT_OK(err, "join_cgroup1"))
+		goto cleanup;
+
+	cgrp1_fd = open_classid();
+	if (!ASSERT_GE(cgrp1_fd, 0, "cgroup1 fd"))
+		goto cleanup;
+
+	cgrp1_id = get_classid_cgroup_id();
+	if (!ASSERT_GE(cgrp1_id, 0, "cgroup1 id"))
+		goto close_fd;
+
+	cgrp1_hid = get_cgroup1_hierarchy_id("net_cls");
+	if (!ASSERT_GE(cgrp1_hid, 0, "cgroup1 hid"))
+		goto close_fd;
+
+	cgroup_mode_value_init(1, cgrp1_hid);
+
+	if (test__start_subtest("cgrp1_tp_btf"))
+		test_tp_btf(cgrp1_fd);
+	if (test__start_subtest("cgrp1_recursion"))
+		test_recursion(cgrp1_fd);
+	if (test__start_subtest("cgrp1_negative"))
+		test_negative();
+	if (test__start_subtest("cgrp1_iter_sleepable"))
+		test_cgroup_iter_sleepable(cgrp1_fd, cgrp1_id);
+	if (test__start_subtest("cgrp1_yes_rcu_lock"))
+		test_yes_rcu_lock(cgrp1_id);
+	if (test__start_subtest("cgrp1_no_rcu_lock"))
+		test_cgrp1_no_rcu_lock();
+
+close_fd:
+	close(cgrp1_fd);
+cleanup:
+	cleanup_classid_environment();
+}
+
+void test_cgrp_local_storage(void)
+{
+	cgrp2_local_storage();
+	cgrp1_local_storage();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/check_mtu.c b/tools/testing/selftests/bpf/prog_tests/check_mtu.c
new file mode 100644
index 000000000000..65b4512967e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/check_mtu.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Jesper Dangaard Brouer */
+
+#include <linux/if_link.h> /* before test_progs.h, avoid bpf_util.h redefines */
+#include <test_progs.h>
+#include "test_check_mtu.skel.h"
+#include "network_helpers.h"
+
+#include <stdlib.h>
+#include <inttypes.h>
+
+#define IFINDEX_LO 1
+
+static __u32 duration; /* Hint: needed for CHECK macro */
+
+static int read_mtu_device_lo(void)
+{
+	const char *filename = "/sys/class/net/lo/mtu";
+	char buf[11] = {};
+	int value, n, fd;
+
+	fd = open(filename, 0, O_RDONLY);
+	if (fd == -1)
+		return -1;
+
+	n = read(fd, buf, sizeof(buf));
+	close(fd);
+
+	if (n == -1)
+		return -2;
+
+	value = strtoimax(buf, NULL, 10);
+	if (errno == ERANGE)
+		return -3;
+
+	return value;
+}
+
+static void test_check_mtu_xdp_attach(void)
+{
+	struct bpf_link_info link_info;
+	__u32 link_info_len = sizeof(link_info);
+	struct test_check_mtu *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	int err = 0;
+	int fd;
+
+	skel = test_check_mtu__open_and_load();
+	if (CHECK(!skel, "open and load skel", "failed"))
+		return; /* Exit if e.g. helper unknown to kernel */
+
+	prog = skel->progs.xdp_use_helper_basic;
+
+	link = bpf_program__attach_xdp(prog, IFINDEX_LO);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto out;
+	skel->links.xdp_use_helper_basic = link;
+
+	memset(&link_info, 0, sizeof(link_info));
+	fd = bpf_link__fd(link);
+	err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len);
+	if (CHECK(err, "link_info", "failed: %d\n", err))
+		goto out;
+
+	CHECK(link_info.type != BPF_LINK_TYPE_XDP, "link_type",
+	      "got %u != exp %u\n", link_info.type, BPF_LINK_TYPE_XDP);
+	CHECK(link_info.xdp.ifindex != IFINDEX_LO, "link_ifindex",
+	      "got %u != exp %u\n", link_info.xdp.ifindex, IFINDEX_LO);
+
+	err = bpf_link__detach(link);
+	CHECK(err, "link_detach", "failed %d\n", err);
+
+out:
+	test_check_mtu__destroy(skel);
+}
+
+static void test_check_mtu_run_xdp(struct test_check_mtu *skel,
+				   struct bpf_program *prog,
+				   __u32 mtu_expect)
+{
+	int retval_expect = XDP_PASS;
+	__u32 mtu_result = 0;
+	char buf[256] = {};
+	int err, prog_fd = bpf_program__fd(prog);
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.repeat = 1,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+	);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, retval_expect, "retval");
+
+	/* Extract MTU that BPF-prog got */
+	mtu_result = skel->bss->global_bpf_mtu_xdp;
+	ASSERT_EQ(mtu_result, mtu_expect, "MTU-compare-user");
+}
+
+
+static void test_check_mtu_xdp(__u32 mtu, __u32 ifindex)
+{
+	struct test_check_mtu *skel;
+	int err;
+
+	skel = test_check_mtu__open();
+	if (CHECK(!skel, "skel_open", "failed"))
+		return;
+
+	/* Update "constants" in BPF-prog *BEFORE* libbpf load */
+	skel->rodata->GLOBAL_USER_MTU = mtu;
+	skel->rodata->GLOBAL_USER_IFINDEX = ifindex;
+
+	err = test_check_mtu__load(skel);
+	if (CHECK(err, "skel_load", "failed: %d\n", err))
+		goto cleanup;
+
+	test_check_mtu_run_xdp(skel, skel->progs.xdp_use_helper, mtu);
+	test_check_mtu_run_xdp(skel, skel->progs.xdp_exceed_mtu, mtu);
+	test_check_mtu_run_xdp(skel, skel->progs.xdp_minus_delta, mtu);
+	test_check_mtu_run_xdp(skel, skel->progs.xdp_input_len, mtu);
+	test_check_mtu_run_xdp(skel, skel->progs.xdp_input_len_exceed, mtu);
+
+cleanup:
+	test_check_mtu__destroy(skel);
+}
+
+static void test_check_mtu_run_tc(struct test_check_mtu *skel,
+				  struct bpf_program *prog,
+				  __u32 mtu_expect)
+{
+	int retval_expect = BPF_OK;
+	__u32 mtu_result = 0;
+	char buf[256] = {};
+	int err, prog_fd = bpf_program__fd(prog);
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, retval_expect, "retval");
+
+	/* Extract MTU that BPF-prog got */
+	mtu_result = skel->bss->global_bpf_mtu_tc;
+	ASSERT_EQ(mtu_result, mtu_expect, "MTU-compare-user");
+}
+
+static void test_chk_segs_flag(struct test_check_mtu *skel, __u32 mtu)
+{
+	int err, prog_fd = bpf_program__fd(skel->progs.tc_chk_segs_flag);
+	struct __sk_buff skb = {
+		.gso_size = 10,
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .ctx_in = &skb,
+		    .ctx_size_in = sizeof(skb),
+	);
+
+	/* Lower the mtu to test the BPF_MTU_CHK_SEGS */
+	SYS_NOFAIL("ip link set dev lo mtu 10");
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	SYS_NOFAIL("ip link set dev lo mtu %u", mtu);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, BPF_OK, "retval");
+}
+
+static void test_check_mtu_tc(__u32 mtu, __u32 ifindex)
+{
+	struct test_check_mtu *skel;
+	int err;
+
+	skel = test_check_mtu__open();
+	if (CHECK(!skel, "skel_open", "failed"))
+		return;
+
+	/* Update "constants" in BPF-prog *BEFORE* libbpf load */
+	skel->rodata->GLOBAL_USER_MTU = mtu;
+	skel->rodata->GLOBAL_USER_IFINDEX = ifindex;
+
+	err = test_check_mtu__load(skel);
+	if (CHECK(err, "skel_load", "failed: %d\n", err))
+		goto cleanup;
+
+	test_check_mtu_run_tc(skel, skel->progs.tc_use_helper, mtu);
+	test_check_mtu_run_tc(skel, skel->progs.tc_exceed_mtu, mtu);
+	test_check_mtu_run_tc(skel, skel->progs.tc_exceed_mtu_da, mtu);
+	test_check_mtu_run_tc(skel, skel->progs.tc_minus_delta, mtu);
+	test_check_mtu_run_tc(skel, skel->progs.tc_input_len, mtu);
+	test_check_mtu_run_tc(skel, skel->progs.tc_input_len_exceed, mtu);
+	test_chk_segs_flag(skel, mtu);
+cleanup:
+	test_check_mtu__destroy(skel);
+}
+
+void test_ns_check_mtu(void)
+{
+	int mtu_lo;
+
+	if (test__start_subtest("bpf_check_mtu XDP-attach"))
+		test_check_mtu_xdp_attach();
+
+	mtu_lo = read_mtu_device_lo();
+	if (CHECK(mtu_lo < 0, "reading MTU value", "failed (err:%d)", mtu_lo))
+		return;
+
+	if (test__start_subtest("bpf_check_mtu XDP-run"))
+		test_check_mtu_xdp(mtu_lo, 0);
+
+	if (test__start_subtest("bpf_check_mtu XDP-run ifindex-lookup"))
+		test_check_mtu_xdp(mtu_lo, IFINDEX_LO);
+
+	if (test__start_subtest("bpf_check_mtu TC-run"))
+		test_check_mtu_tc(mtu_lo, 0);
+
+	if (test__start_subtest("bpf_check_mtu TC-run ifindex-lookup"))
+		test_check_mtu_tc(mtu_lo, IFINDEX_LO);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cls_redirect.c b/tools/testing/selftests/bpf/prog_tests/cls_redirect.c
new file mode 100644
index 000000000000..7488a7606e6a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cls_redirect.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2020 Cloudflare
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <string.h>
+
+#include <linux/pkt_cls.h>
+#include <netinet/tcp.h>
+
+#include <test_progs.h>
+#include "network_helpers.h"
+
+#include "progs/test_cls_redirect.h"
+#include "test_cls_redirect.skel.h"
+#include "test_cls_redirect_dynptr.skel.h"
+#include "test_cls_redirect_subprogs.skel.h"
+
+#define ENCAP_IP INADDR_LOOPBACK
+#define ENCAP_PORT (1234)
+
+static int duration = 0;
+
+
+static bool set_up_conn(const struct sockaddr_storage *addr, socklen_t len, int type,
+			int *server, int *conn,
+			struct sockaddr_storage *src,
+			struct sockaddr_storage *dst)
+{
+	struct sockaddr_storage ss;
+	socklen_t slen = sizeof(ss);
+
+	*server = start_server_addr(type, addr, len, NULL);
+	if (*server < 0)
+		return false;
+
+	if (CHECK_FAIL(getsockname(*server, (struct sockaddr *)&ss, &slen)))
+		goto close_server;
+
+	*conn = connect_to_addr(type, &ss, slen, NULL);
+	if (*conn < 0)
+		goto close_server;
+
+	/* We want to simulate packets arriving at conn, so we have to
+	 * swap src and dst.
+	 */
+	slen = sizeof(*dst);
+	if (CHECK_FAIL(getsockname(*conn, (struct sockaddr *)dst, &slen)))
+		goto close_conn;
+
+	slen = sizeof(*src);
+	if (CHECK_FAIL(getpeername(*conn, (struct sockaddr *)src, &slen)))
+		goto close_conn;
+
+	return true;
+
+close_conn:
+	close(*conn);
+	*conn = -1;
+close_server:
+	close(*server);
+	*server = -1;
+	return false;
+}
+
+static socklen_t prepare_addr(struct sockaddr_storage *addr, int family)
+{
+	struct sockaddr_in *addr4;
+	struct sockaddr_in6 *addr6;
+	memset(addr, 0, sizeof(*addr));
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)addr;
+		addr4->sin_family = family;
+		addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		return sizeof(*addr4);
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)addr;
+		addr6->sin6_family = family;
+		addr6->sin6_addr = in6addr_loopback;
+		return sizeof(*addr6);
+	default:
+		fprintf(stderr, "Invalid family %d", family);
+		return 0;
+	}
+}
+
+static bool was_decapsulated(struct bpf_test_run_opts *tattr)
+{
+	return tattr->data_size_out < tattr->data_size_in;
+}
+
+enum type {
+	UDP,
+	TCP,
+	__NR_KIND,
+};
+
+enum hops {
+	NO_HOPS,
+	ONE_HOP,
+};
+
+enum flags {
+	NONE,
+	SYN,
+	ACK,
+};
+
+enum conn {
+	KNOWN_CONN,
+	UNKNOWN_CONN,
+};
+
+enum result {
+	ACCEPT,
+	FORWARD,
+};
+
+struct test_cfg {
+	enum type type;
+	enum result result;
+	enum conn conn;
+	enum hops hops;
+	enum flags flags;
+};
+
+static int test_str(void *buf, size_t len, const struct test_cfg *test,
+		    int family)
+{
+	const char *family_str, *type, *conn, *hops, *result, *flags;
+
+	family_str = "IPv4";
+	if (family == AF_INET6)
+		family_str = "IPv6";
+
+	type = "TCP";
+	if (test->type == UDP)
+		type = "UDP";
+
+	conn = "known";
+	if (test->conn == UNKNOWN_CONN)
+		conn = "unknown";
+
+	hops = "no hops";
+	if (test->hops == ONE_HOP)
+		hops = "one hop";
+
+	result = "accept";
+	if (test->result == FORWARD)
+		result = "forward";
+
+	flags = "none";
+	if (test->flags == SYN)
+		flags = "SYN";
+	else if (test->flags == ACK)
+		flags = "ACK";
+
+	return snprintf(buf, len, "%s %s %s %s (%s, flags: %s)", family_str,
+			type, result, conn, hops, flags);
+}
+
+static struct test_cfg tests[] = {
+	{ TCP, ACCEPT, UNKNOWN_CONN, NO_HOPS, SYN },
+	{ TCP, ACCEPT, UNKNOWN_CONN, NO_HOPS, ACK },
+	{ TCP, FORWARD, UNKNOWN_CONN, ONE_HOP, ACK },
+	{ TCP, ACCEPT, KNOWN_CONN, ONE_HOP, ACK },
+	{ UDP, ACCEPT, UNKNOWN_CONN, NO_HOPS, NONE },
+	{ UDP, FORWARD, UNKNOWN_CONN, ONE_HOP, NONE },
+	{ UDP, ACCEPT, KNOWN_CONN, ONE_HOP, NONE },
+};
+
+static void encap_init(encap_headers_t *encap, uint8_t hop_count, uint8_t proto)
+{
+	const uint8_t hlen =
+		(sizeof(struct guehdr) / sizeof(uint32_t)) + hop_count;
+	*encap = (encap_headers_t){
+		.eth = { .h_proto = htons(ETH_P_IP) },
+		.ip = {
+			.ihl = 5,
+			.version = 4,
+			.ttl = IPDEFTTL,
+			.protocol = IPPROTO_UDP,
+			.daddr = htonl(ENCAP_IP)
+		},
+		.udp = {
+			.dest = htons(ENCAP_PORT),
+		},
+		.gue = {
+			.hlen = hlen,
+			.proto_ctype = proto
+		},
+		.unigue = {
+			.hop_count = hop_count
+		},
+	};
+}
+
+static size_t build_input(const struct test_cfg *test, void *const buf,
+			  const struct sockaddr_storage *src,
+			  const struct sockaddr_storage *dst)
+{
+	struct sockaddr_in6 *src_in6 = (struct sockaddr_in6 *)src;
+	struct sockaddr_in6 *dst_in6 = (struct sockaddr_in6 *)dst;
+	struct sockaddr_in *src_in = (struct sockaddr_in *)src;
+	struct sockaddr_in *dst_in = (struct sockaddr_in *)dst;
+	sa_family_t family = src->ss_family;
+	in_port_t sport, dport;
+	encap_headers_t encap;
+	struct iphdr ip;
+	struct ipv6hdr ipv6;
+	struct tcphdr tcp;
+	struct udphdr udp;
+	struct in_addr next_hop;
+	uint8_t *p = buf;
+	int proto;
+
+	sport = (family == AF_INET) ? src_in->sin_port : src_in6->sin6_port;
+	dport = (family == AF_INET) ? dst_in->sin_port : dst_in6->sin6_port;
+
+	proto = IPPROTO_IPIP;
+	if (family == AF_INET6)
+		proto = IPPROTO_IPV6;
+
+	encap_init(&encap, test->hops == ONE_HOP ? 1 : 0, proto);
+	p = mempcpy(p, &encap, sizeof(encap));
+
+	if (test->hops == ONE_HOP) {
+		next_hop = (struct in_addr){ .s_addr = htonl(0x7f000002) };
+		p = mempcpy(p, &next_hop, sizeof(next_hop));
+	}
+
+	proto = IPPROTO_TCP;
+	if (test->type == UDP)
+		proto = IPPROTO_UDP;
+
+	switch (family) {
+	case AF_INET:
+		ip = (struct iphdr){
+			.ihl = 5,
+			.version = 4,
+			.ttl = IPDEFTTL,
+			.protocol = proto,
+			.saddr = src_in->sin_addr.s_addr,
+			.daddr = dst_in->sin_addr.s_addr,
+		};
+		p = mempcpy(p, &ip, sizeof(ip));
+		break;
+	case AF_INET6:
+		ipv6 = (struct ipv6hdr){
+			.version = 6,
+			.hop_limit = IPDEFTTL,
+			.nexthdr = proto,
+			.saddr = src_in6->sin6_addr,
+			.daddr = dst_in6->sin6_addr,
+		};
+		p = mempcpy(p, &ipv6, sizeof(ipv6));
+		break;
+	default:
+		return 0;
+	}
+
+	if (test->conn == UNKNOWN_CONN)
+		sport--;
+
+	switch (test->type) {
+	case TCP:
+		tcp = (struct tcphdr){
+			.source = sport,
+			.dest = dport,
+			.syn = (test->flags == SYN),
+			.ack = (test->flags == ACK),
+		};
+		p = mempcpy(p, &tcp, sizeof(tcp));
+		break;
+	case UDP:
+		udp = (struct udphdr){
+			.source = sport,
+			.dest = dport,
+		};
+		p = mempcpy(p, &udp, sizeof(udp));
+		break;
+	default:
+		return 0;
+	}
+
+	return (void *)p - buf;
+}
+
+static void close_fds(int *fds, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)
+		if (fds[i] > 0)
+			close(fds[i]);
+}
+
+static void test_cls_redirect_common(struct bpf_program *prog)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, tattr);
+	int families[] = { AF_INET, AF_INET6 };
+	struct sockaddr_storage ss;
+	socklen_t slen;
+	int i, j, err, prog_fd;
+	int servers[__NR_KIND][ARRAY_SIZE(families)] = {};
+	int conns[__NR_KIND][ARRAY_SIZE(families)] = {};
+	struct sockaddr_storage srcs[__NR_KIND][ARRAY_SIZE(families)];
+	struct sockaddr_storage dsts[__NR_KIND][ARRAY_SIZE(families)];
+
+	for (i = 0; i < ARRAY_SIZE(families); i++) {
+		slen = prepare_addr(&ss, families[i]);
+		if (CHECK_FAIL(!slen))
+			goto cleanup;
+
+		if (CHECK_FAIL(!set_up_conn(&ss, slen, SOCK_DGRAM,
+					    &servers[UDP][i], &conns[UDP][i],
+					    &srcs[UDP][i], &dsts[UDP][i])))
+			goto cleanup;
+
+		if (CHECK_FAIL(!set_up_conn(&ss, slen, SOCK_STREAM,
+					    &servers[TCP][i], &conns[TCP][i],
+					    &srcs[TCP][i], &dsts[TCP][i])))
+			goto cleanup;
+	}
+
+	prog_fd = bpf_program__fd(prog);
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		struct test_cfg *test = &tests[i];
+
+		for (j = 0; j < ARRAY_SIZE(families); j++) {
+			struct sockaddr_storage *src = &srcs[test->type][j];
+			struct sockaddr_storage *dst = &dsts[test->type][j];
+			char input[256];
+			char tmp[256];
+
+			test_str(tmp, sizeof(tmp), test, families[j]);
+			if (!test__start_subtest(tmp))
+				continue;
+
+			tattr.data_out = tmp;
+			tattr.data_size_out = sizeof(tmp);
+
+			tattr.data_in = input;
+			tattr.data_size_in = build_input(test, input, src, dst);
+			if (CHECK_FAIL(!tattr.data_size_in))
+				continue;
+
+			err = bpf_prog_test_run_opts(prog_fd, &tattr);
+			if (CHECK_FAIL(err))
+				continue;
+
+			if (tattr.retval != TC_ACT_REDIRECT) {
+				PRINT_FAIL("expected TC_ACT_REDIRECT, got %d\n",
+					   tattr.retval);
+				continue;
+			}
+
+			switch (test->result) {
+			case ACCEPT:
+				if (CHECK_FAIL(!was_decapsulated(&tattr)))
+					continue;
+				break;
+			case FORWARD:
+				if (CHECK_FAIL(was_decapsulated(&tattr)))
+					continue;
+				break;
+			default:
+				PRINT_FAIL("unknown result %d\n", test->result);
+				continue;
+			}
+		}
+	}
+
+cleanup:
+	close_fds((int *)servers, sizeof(servers) / sizeof(servers[0][0]));
+	close_fds((int *)conns, sizeof(conns) / sizeof(conns[0][0]));
+}
+
+static void test_cls_redirect_dynptr(void)
+{
+	struct test_cls_redirect_dynptr *skel;
+	int err;
+
+	skel = test_cls_redirect_dynptr__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->rodata->ENCAPSULATION_IP = htonl(ENCAP_IP);
+	skel->rodata->ENCAPSULATION_PORT = htons(ENCAP_PORT);
+
+	err = test_cls_redirect_dynptr__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	test_cls_redirect_common(skel->progs.cls_redirect);
+
+cleanup:
+	test_cls_redirect_dynptr__destroy(skel);
+}
+
+static void test_cls_redirect_inlined(void)
+{
+	struct test_cls_redirect *skel;
+	int err;
+
+	skel = test_cls_redirect__open();
+	if (CHECK(!skel, "skel_open", "failed\n"))
+		return;
+
+	skel->rodata->ENCAPSULATION_IP = htonl(ENCAP_IP);
+	skel->rodata->ENCAPSULATION_PORT = htons(ENCAP_PORT);
+
+	err = test_cls_redirect__load(skel);
+	if (CHECK(err, "skel_load", "failed: %d\n", err))
+		goto cleanup;
+
+	test_cls_redirect_common(skel->progs.cls_redirect);
+
+cleanup:
+	test_cls_redirect__destroy(skel);
+}
+
+static void test_cls_redirect_subprogs(void)
+{
+	struct test_cls_redirect_subprogs *skel;
+	int err;
+
+	skel = test_cls_redirect_subprogs__open();
+	if (CHECK(!skel, "skel_open", "failed\n"))
+		return;
+
+	skel->rodata->ENCAPSULATION_IP = htonl(ENCAP_IP);
+	skel->rodata->ENCAPSULATION_PORT = htons(ENCAP_PORT);
+
+	err = test_cls_redirect_subprogs__load(skel);
+	if (CHECK(err, "skel_load", "failed: %d\n", err))
+		goto cleanup;
+
+	test_cls_redirect_common(skel->progs.cls_redirect);
+
+cleanup:
+	test_cls_redirect_subprogs__destroy(skel);
+}
+
+void test_cls_redirect(void)
+{
+	if (test__start_subtest("cls_redirect_inlined"))
+		test_cls_redirect_inlined();
+	if (test__start_subtest("cls_redirect_subprogs"))
+		test_cls_redirect_subprogs();
+	if (test__start_subtest("cls_redirect_dynptr"))
+		test_cls_redirect_dynptr();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/compute_live_registers.c b/tools/testing/selftests/bpf/prog_tests/compute_live_registers.c
new file mode 100644
index 000000000000..285f20241fe1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/compute_live_registers.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "compute_live_registers.skel.h"
+#include "test_progs.h"
+
+void test_compute_live_registers(void)
+{
+	RUN_TESTS(compute_live_registers);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/connect_force_port.c b/tools/testing/selftests/bpf/prog_tests/connect_force_port.c
new file mode 100644
index 000000000000..24d553109f8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/connect_force_port.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+static int verify_ports(int family, int fd,
+			__u16 expected_local, __u16 expected_peer)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = sizeof(addr);
+	__u16 port;
+
+	if (getsockname(fd, (struct sockaddr *)&addr, &len)) {
+		log_err("Failed to get server addr");
+		return -1;
+	}
+
+	if (family == AF_INET)
+		port = ((struct sockaddr_in *)&addr)->sin_port;
+	else
+		port = ((struct sockaddr_in6 *)&addr)->sin6_port;
+
+	if (ntohs(port) != expected_local) {
+		log_err("Unexpected local port %d, expected %d", ntohs(port),
+			expected_local);
+		return -1;
+	}
+
+	if (getpeername(fd, (struct sockaddr *)&addr, &len)) {
+		log_err("Failed to get peer addr");
+		return -1;
+	}
+
+	if (family == AF_INET)
+		port = ((struct sockaddr_in *)&addr)->sin_port;
+	else
+		port = ((struct sockaddr_in6 *)&addr)->sin6_port;
+
+	if (ntohs(port) != expected_peer) {
+		log_err("Unexpected peer port %d, expected %d", ntohs(port),
+			expected_peer);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int run_test(int cgroup_fd, int server_fd, int family, int type)
+{
+	bool v4 = family == AF_INET;
+	__u16 expected_local_port = v4 ? 22222 : 22223;
+	__u16 expected_peer_port = 60000;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	const char *obj_file = v4 ? "connect_force_port4.bpf.o" : "connect_force_port6.bpf.o";
+	int fd, err;
+	__u32 duration = 0;
+
+	obj = bpf_object__open_file(obj_file, NULL);
+	if (!ASSERT_OK_PTR(obj, "bpf_obj_open"))
+		return -1;
+
+	err = bpf_object__load(obj);
+	if (!ASSERT_OK(err, "bpf_obj_load")) {
+		err = -EIO;
+		goto close_bpf_object;
+	}
+
+	prog = bpf_object__find_program_by_name(obj, v4 ?
+						"connect4" :
+						"connect6");
+	if (CHECK(!prog, "find_prog", "connect prog not found\n")) {
+		err = -EIO;
+		goto close_bpf_object;
+	}
+
+	err = bpf_prog_attach(bpf_program__fd(prog), cgroup_fd, v4 ?
+			      BPF_CGROUP_INET4_CONNECT :
+			      BPF_CGROUP_INET6_CONNECT, 0);
+	if (err) {
+		log_err("Failed to attach BPF program");
+		goto close_bpf_object;
+	}
+
+	prog = bpf_object__find_program_by_name(obj, v4 ?
+						"getpeername4" :
+						"getpeername6");
+	if (CHECK(!prog, "find_prog", "getpeername prog not found\n")) {
+		err = -EIO;
+		goto close_bpf_object;
+	}
+
+	err = bpf_prog_attach(bpf_program__fd(prog), cgroup_fd, v4 ?
+			      BPF_CGROUP_INET4_GETPEERNAME :
+			      BPF_CGROUP_INET6_GETPEERNAME, 0);
+	if (err) {
+		log_err("Failed to attach BPF program");
+		goto close_bpf_object;
+	}
+
+	prog = bpf_object__find_program_by_name(obj, v4 ?
+						"getsockname4" :
+						"getsockname6");
+	if (CHECK(!prog, "find_prog", "getsockname prog not found\n")) {
+		err = -EIO;
+		goto close_bpf_object;
+	}
+
+	err = bpf_prog_attach(bpf_program__fd(prog), cgroup_fd, v4 ?
+			      BPF_CGROUP_INET4_GETSOCKNAME :
+			      BPF_CGROUP_INET6_GETSOCKNAME, 0);
+	if (err) {
+		log_err("Failed to attach BPF program");
+		goto close_bpf_object;
+	}
+
+	fd = connect_to_fd(server_fd, 0);
+	if (fd < 0) {
+		err = -1;
+		goto close_bpf_object;
+	}
+
+	err = verify_ports(family, fd, expected_local_port,
+			   expected_peer_port);
+	close(fd);
+
+close_bpf_object:
+	bpf_object__close(obj);
+	return err;
+}
+
+void test_connect_force_port(void)
+{
+	int server_fd, cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/connect_force_port");
+	if (CHECK_FAIL(cgroup_fd < 0))
+		return;
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 60123, 0);
+	if (CHECK_FAIL(server_fd < 0))
+		goto close_cgroup_fd;
+	CHECK_FAIL(run_test(cgroup_fd, server_fd, AF_INET, SOCK_STREAM));
+	close(server_fd);
+
+	server_fd = start_server(AF_INET6, SOCK_STREAM, NULL, 60124, 0);
+	if (CHECK_FAIL(server_fd < 0))
+		goto close_cgroup_fd;
+	CHECK_FAIL(run_test(cgroup_fd, server_fd, AF_INET6, SOCK_STREAM));
+	close(server_fd);
+
+	server_fd = start_server(AF_INET, SOCK_DGRAM, NULL, 60123, 0);
+	if (CHECK_FAIL(server_fd < 0))
+		goto close_cgroup_fd;
+	CHECK_FAIL(run_test(cgroup_fd, server_fd, AF_INET, SOCK_DGRAM));
+	close(server_fd);
+
+	server_fd = start_server(AF_INET6, SOCK_DGRAM, NULL, 60124, 0);
+	if (CHECK_FAIL(server_fd < 0))
+		goto close_cgroup_fd;
+	CHECK_FAIL(run_test(cgroup_fd, server_fd, AF_INET6, SOCK_DGRAM));
+	close(server_fd);
+
+close_cgroup_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/connect_ping.c b/tools/testing/selftests/bpf/prog_tests/connect_ping.c
new file mode 100644
index 000000000000..40fe571f2fe7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/connect_ping.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2022 Google LLC.
+ */
+
+#define _GNU_SOURCE
+#include <sys/mount.h>
+
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+#include "connect_ping.skel.h"
+
+/* 2001:db8::1 */
+#define BINDADDR_V6 { { { 0x20,0x01,0x0d,0xb8,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+static const struct in6_addr bindaddr_v6 = BINDADDR_V6;
+
+static void subtest(int cgroup_fd, struct connect_ping *skel,
+		    int family, int do_bind)
+{
+	struct sockaddr_in sa4 = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
+	};
+	struct sockaddr_in6 sa6 = {
+		.sin6_family = AF_INET6,
+		.sin6_addr = IN6ADDR_LOOPBACK_INIT,
+	};
+	struct sockaddr *sa = NULL;
+	socklen_t sa_len;
+	int protocol = -1;
+	int sock_fd;
+
+	switch (family) {
+	case AF_INET:
+		sa = (struct sockaddr *)&sa4;
+		sa_len = sizeof(sa4);
+		protocol = IPPROTO_ICMP;
+		break;
+	case AF_INET6:
+		sa = (struct sockaddr *)&sa6;
+		sa_len = sizeof(sa6);
+		protocol = IPPROTO_ICMPV6;
+		break;
+	}
+
+	memset(skel->bss, 0, sizeof(*skel->bss));
+	skel->bss->do_bind = do_bind;
+
+	sock_fd = socket(family, SOCK_DGRAM, protocol);
+	if (!ASSERT_GE(sock_fd, 0, "sock-create"))
+		return;
+
+	if (!ASSERT_OK(connect(sock_fd, sa, sa_len), "connect"))
+		goto close_sock;
+
+	if (!ASSERT_EQ(skel->bss->invocations_v4, family == AF_INET ? 1 : 0,
+		       "invocations_v4"))
+		goto close_sock;
+	if (!ASSERT_EQ(skel->bss->invocations_v6, family == AF_INET6 ? 1 : 0,
+		       "invocations_v6"))
+		goto close_sock;
+	if (!ASSERT_EQ(skel->bss->has_error, 0, "has_error"))
+		goto close_sock;
+
+	if (!ASSERT_OK(getsockname(sock_fd, sa, &sa_len),
+		       "getsockname"))
+		goto close_sock;
+
+	switch (family) {
+	case AF_INET:
+		if (!ASSERT_EQ(sa4.sin_family, family, "sin_family"))
+			goto close_sock;
+		if (!ASSERT_EQ(sa4.sin_addr.s_addr,
+			       htonl(do_bind ? 0x01010101 : INADDR_LOOPBACK),
+			       "sin_addr"))
+			goto close_sock;
+		break;
+	case AF_INET6:
+		if (!ASSERT_EQ(sa6.sin6_family, AF_INET6, "sin6_family"))
+			goto close_sock;
+		if (!ASSERT_EQ(memcmp(&sa6.sin6_addr,
+				      do_bind ? &bindaddr_v6 : &in6addr_loopback,
+				      sizeof(sa6.sin6_addr)),
+			       0, "sin6_addr"))
+			goto close_sock;
+		break;
+	}
+
+close_sock:
+	close(sock_fd);
+}
+
+void test_connect_ping(void)
+{
+	struct connect_ping *skel;
+	int cgroup_fd;
+
+	if (!ASSERT_OK(unshare(CLONE_NEWNET | CLONE_NEWNS), "unshare"))
+		return;
+
+	/* overmount sysfs, and making original sysfs private so overmount
+	 * does not propagate to other mntns.
+	 */
+	if (!ASSERT_OK(mount("none", "/sys", NULL, MS_PRIVATE, NULL),
+		       "remount-private-sys"))
+		return;
+	if (!ASSERT_OK(mount("sysfs", "/sys", "sysfs", 0, NULL),
+		       "mount-sys"))
+		return;
+	if (!ASSERT_OK(mount("bpffs", "/sys/fs/bpf", "bpf", 0, NULL),
+		       "mount-bpf"))
+		goto clean_mount;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "lo-up"))
+		goto clean_mount;
+	if (!ASSERT_OK(system("ip addr add 1.1.1.1 dev lo"), "lo-addr-v4"))
+		goto clean_mount;
+	if (!ASSERT_OK(system("ip -6 addr add 2001:db8::1 dev lo"), "lo-addr-v6"))
+		goto clean_mount;
+	if (write_sysctl("/proc/sys/net/ipv4/ping_group_range", "0 0"))
+		goto clean_mount;
+
+	cgroup_fd = test__join_cgroup("/connect_ping");
+	if (!ASSERT_GE(cgroup_fd, 0, "cg-create"))
+		goto clean_mount;
+
+	skel = connect_ping__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel-load"))
+		goto close_cgroup;
+	skel->links.connect_v4_prog =
+		bpf_program__attach_cgroup(skel->progs.connect_v4_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.connect_v4_prog, "cg-attach-v4"))
+		goto skel_destroy;
+	skel->links.connect_v6_prog =
+		bpf_program__attach_cgroup(skel->progs.connect_v6_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.connect_v6_prog, "cg-attach-v6"))
+		goto skel_destroy;
+
+	/* Connect a v4 ping socket to localhost, assert that only v4 is called,
+	 * and called exactly once, and that the socket's bound address is
+	 * original loopback address.
+	 */
+	if (test__start_subtest("ipv4"))
+		subtest(cgroup_fd, skel, AF_INET, 0);
+
+	/* Connect a v4 ping socket to localhost, assert that only v4 is called,
+	 * and called exactly once, and that the socket's bound address is
+	 * address we explicitly bound.
+	 */
+	if (test__start_subtest("ipv4-bind"))
+		subtest(cgroup_fd, skel, AF_INET, 1);
+
+	/* Connect a v6 ping socket to localhost, assert that only v6 is called,
+	 * and called exactly once, and that the socket's bound address is
+	 * original loopback address.
+	 */
+	if (test__start_subtest("ipv6"))
+		subtest(cgroup_fd, skel, AF_INET6, 0);
+
+	/* Connect a v6 ping socket to localhost, assert that only v6 is called,
+	 * and called exactly once, and that the socket's bound address is
+	 * address we explicitly bound.
+	 */
+	if (test__start_subtest("ipv6-bind"))
+		subtest(cgroup_fd, skel, AF_INET6, 1);
+
+skel_destroy:
+	connect_ping__destroy(skel);
+
+close_cgroup:
+	close(cgroup_fd);
+
+clean_mount:
+	umount2("/sys", MNT_DETACH);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_autosize.c b/tools/testing/selftests/bpf/prog_tests/core_autosize.c
new file mode 100644
index 000000000000..f2ce4fd1cdae
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_autosize.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+/* real layout and sizes according to test's (32-bit) BTF
+ * needs to be defined before skeleton is included */
+struct test_struct___real {
+	unsigned int ptr; /* can't use `void *`, it is always 8 byte in BPF target */
+	unsigned int val2;
+	unsigned long long val1;
+	unsigned short val3;
+	unsigned char val4;
+	unsigned char _pad;
+};
+
+#include "test_core_autosize.skel.h"
+
+static int duration = 0;
+
+static struct {
+	unsigned long long ptr_samesized;
+	unsigned long long val1_samesized;
+	unsigned long long val2_samesized;
+	unsigned long long val3_samesized;
+	unsigned long long val4_samesized;
+	struct test_struct___real output_samesized;
+
+	unsigned long long ptr_downsized;
+	unsigned long long val1_downsized;
+	unsigned long long val2_downsized;
+	unsigned long long val3_downsized;
+	unsigned long long val4_downsized;
+	struct test_struct___real output_downsized;
+
+	unsigned long long ptr_probed;
+	unsigned long long val1_probed;
+	unsigned long long val2_probed;
+	unsigned long long val3_probed;
+	unsigned long long val4_probed;
+
+	unsigned long long ptr_signed;
+	unsigned long long val1_signed;
+	unsigned long long val2_signed;
+	unsigned long long val3_signed;
+	unsigned long long val4_signed;
+	struct test_struct___real output_signed;
+} out;
+
+void test_core_autosize(void)
+{
+	char btf_file[] = "/tmp/core_autosize.btf.XXXXXX";
+	int err, fd = -1, zero = 0;
+	int char_id, short_id, int_id, long_long_id, void_ptr_id, id;
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts);
+	struct test_core_autosize* skel = NULL;
+	struct bpf_program *prog;
+	struct bpf_map *bss_map;
+	struct btf *btf = NULL;
+	size_t written;
+	const void *raw_data;
+	__u32 raw_sz;
+	FILE *f = NULL;
+
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "empty_btf"))
+		return;
+	/* Emit the following struct with 32-bit pointer size:
+	 *
+	 * struct test_struct {
+	 *     void *ptr;
+	 *     unsigned long val2;
+	 *     unsigned long long val1;
+	 *     unsigned short val3;
+	 *     unsigned char val4;
+	 *     char: 8;
+	 * };
+	 *
+	 * This struct is going to be used as the "kernel BTF" for this test.
+	 * It's equivalent memory-layout-wise to test_struct__real above.
+	 */
+
+	/* force 32-bit pointer size */
+	btf__set_pointer_size(btf, 4);
+
+	char_id = btf__add_int(btf, "unsigned char", 1, 0);
+	ASSERT_EQ(char_id, 1, "char_id");
+	short_id = btf__add_int(btf, "unsigned short", 2, 0);
+	ASSERT_EQ(short_id, 2, "short_id");
+	/* "long unsigned int" of 4 byte size tells BTF that sizeof(void *) == 4 */
+	int_id = btf__add_int(btf, "long unsigned int", 4, 0);
+	ASSERT_EQ(int_id, 3, "int_id");
+	long_long_id = btf__add_int(btf, "unsigned long long", 8, 0);
+	ASSERT_EQ(long_long_id, 4, "long_long_id");
+	void_ptr_id = btf__add_ptr(btf, 0);
+	ASSERT_EQ(void_ptr_id, 5, "void_ptr_id");
+
+	id = btf__add_struct(btf, "test_struct", 20 /* bytes */);
+	ASSERT_EQ(id, 6, "struct_id");
+	err = btf__add_field(btf, "ptr", void_ptr_id, 0, 0);
+	err = err ?: btf__add_field(btf, "val2", int_id, 32, 0);
+	err = err ?: btf__add_field(btf, "val1", long_long_id, 64, 0);
+	err = err ?: btf__add_field(btf, "val3", short_id, 128, 0);
+	err = err ?: btf__add_field(btf, "val4", char_id, 144, 0);
+	ASSERT_OK(err, "struct_fields");
+
+	fd = mkstemp(btf_file);
+	if (CHECK(fd < 0, "btf_tmp", "failed to create file: %d\n", fd))
+		goto cleanup;
+	f = fdopen(fd, "w");
+	if (!ASSERT_OK_PTR(f, "btf_fdopen"))
+		goto cleanup;
+
+	raw_data = btf__raw_data(btf, &raw_sz);
+	if (!ASSERT_OK_PTR(raw_data, "raw_data"))
+		goto cleanup;
+	written = fwrite(raw_data, 1, raw_sz, f);
+	if (CHECK(written != raw_sz, "btf_write", "written: %zu, errno: %d\n", written, errno))
+		goto cleanup;
+	fflush(f);
+	fclose(f);
+	f = NULL;
+	close(fd);
+	fd = -1;
+
+	/* open and load BPF program with custom BTF as the kernel BTF */
+	open_opts.btf_custom_path = btf_file;
+	skel = test_core_autosize__open_opts(&open_opts);
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	/* disable handle_signed() for now */
+	prog = bpf_object__find_program_by_name(skel->obj, "handle_signed");
+	if (!ASSERT_OK_PTR(prog, "prog_find"))
+		goto cleanup;
+	bpf_program__set_autoload(prog, false);
+
+	err = bpf_object__load(skel->obj);
+	if (!ASSERT_OK(err, "prog_load"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, "handle_samesize");
+	if (!ASSERT_OK_PTR(prog, "prog_find"))
+		goto cleanup;
+	skel->links.handle_samesize = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(skel->links.handle_samesize, "prog_attach"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, "handle_downsize");
+	if (!ASSERT_OK_PTR(prog, "prog_find"))
+		goto cleanup;
+	skel->links.handle_downsize = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(skel->links.handle_downsize, "prog_attach"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, "handle_probed");
+	if (!ASSERT_OK_PTR(prog, "prog_find"))
+		goto cleanup;
+	skel->links.handle_probed = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(skel->links.handle_probed, "prog_attach"))
+		goto cleanup;
+
+	usleep(1);
+
+	bss_map = bpf_object__find_map_by_name(skel->obj, ".bss");
+	if (!ASSERT_OK_PTR(bss_map, "bss_map_find"))
+		goto cleanup;
+
+	err = bpf_map__lookup_elem(bss_map, &zero, sizeof(zero), &out, sizeof(out), 0);
+	if (!ASSERT_OK(err, "bss_lookup"))
+		goto cleanup;
+
+	ASSERT_EQ(out.ptr_samesized, 0x01020304, "ptr_samesized");
+	ASSERT_EQ(out.val1_samesized, 0x1020304050607080, "val1_samesized");
+	ASSERT_EQ(out.val2_samesized, 0x0a0b0c0d, "val2_samesized");
+	ASSERT_EQ(out.val3_samesized, 0xfeed, "val3_samesized");
+	ASSERT_EQ(out.val4_samesized, 0xb9, "val4_samesized");
+	ASSERT_EQ(out.output_samesized.ptr, 0x01020304, "ptr_samesized");
+	ASSERT_EQ(out.output_samesized.val1, 0x1020304050607080, "val1_samesized");
+	ASSERT_EQ(out.output_samesized.val2, 0x0a0b0c0d, "val2_samesized");
+	ASSERT_EQ(out.output_samesized.val3, 0xfeed, "val3_samesized");
+	ASSERT_EQ(out.output_samesized.val4, 0xb9, "val4_samesized");
+
+	ASSERT_EQ(out.ptr_downsized, 0x01020304, "ptr_downsized");
+	ASSERT_EQ(out.val1_downsized, 0x1020304050607080, "val1_downsized");
+	ASSERT_EQ(out.val2_downsized, 0x0a0b0c0d, "val2_downsized");
+	ASSERT_EQ(out.val3_downsized, 0xfeed, "val3_downsized");
+	ASSERT_EQ(out.val4_downsized, 0xb9, "val4_downsized");
+	ASSERT_EQ(out.output_downsized.ptr, 0x01020304, "ptr_downsized");
+	ASSERT_EQ(out.output_downsized.val1, 0x1020304050607080, "val1_downsized");
+	ASSERT_EQ(out.output_downsized.val2, 0x0a0b0c0d, "val2_downsized");
+	ASSERT_EQ(out.output_downsized.val3, 0xfeed, "val3_downsized");
+	ASSERT_EQ(out.output_downsized.val4, 0xb9, "val4_downsized");
+
+	ASSERT_EQ(out.ptr_probed, 0x01020304, "ptr_probed");
+	ASSERT_EQ(out.val1_probed, 0x1020304050607080, "val1_probed");
+	ASSERT_EQ(out.val2_probed, 0x0a0b0c0d, "val2_probed");
+	ASSERT_EQ(out.val3_probed, 0xfeed, "val3_probed");
+	ASSERT_EQ(out.val4_probed, 0xb9, "val4_probed");
+
+	test_core_autosize__destroy(skel);
+	skel = NULL;
+
+	/* now re-load with handle_signed() enabled, it should fail loading */
+	open_opts.btf_custom_path = btf_file;
+	skel = test_core_autosize__open_opts(&open_opts);
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	err = test_core_autosize__load(skel);
+	if (!ASSERT_ERR(err, "skel_load"))
+		goto cleanup;
+
+cleanup:
+	if (f)
+		fclose(f);
+	if (fd >= 0)
+		close(fd);
+	remove(btf_file);
+	btf__free(btf);
+	test_core_autosize__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_extern.c b/tools/testing/selftests/bpf/prog_tests/core_extern.c
new file mode 100644
index 000000000000..63a51e9f3630
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_extern.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <test_progs.h>
+#include <sys/mman.h>
+#include <sys/utsname.h>
+#include <linux/version.h>
+#include "test_core_extern.skel.h"
+
+static uint32_t get_kernel_version(void)
+{
+	uint32_t major, minor, patch;
+	struct utsname info;
+
+	uname(&info);
+	if (sscanf(info.release, "%u.%u.%u", &major, &minor, &patch) != 3)
+		return 0;
+	return KERNEL_VERSION(major, minor, patch);
+}
+
+#define CFG "CONFIG_BPF_SYSCALL=n\n"
+
+static struct test_case {
+	const char *name;
+	const char *cfg;
+	bool fails;
+	struct test_core_extern__data data;
+} test_cases[] = {
+	{ .name = "default search path", .data = { .bpf_syscall = true } },
+	{
+		.name = "custom values",
+		.cfg = "CONFIG_BPF_SYSCALL=n\n"
+		       "CONFIG_TRISTATE=m\n"
+		       "CONFIG_BOOL=y\n"
+		       "CONFIG_CHAR=100\n"
+		       "CONFIG_USHORT=30000\n"
+		       "CONFIG_INT=123456\n"
+		       "CONFIG_ULONG=0xDEADBEEFC0DE\n"
+		       "CONFIG_STR=\"abracad\"\n"
+		       "CONFIG_MISSING=0",
+		.data = {
+			.unkn_virt_val = 0,
+			.bpf_syscall = false,
+			.tristate_val = TRI_MODULE,
+			.bool_val = true,
+			.char_val = 100,
+			.ushort_val = 30000,
+			.int_val = 123456,
+			.ulong_val = 0xDEADBEEFC0DE,
+			.str_val = "abracad",
+		},
+	},
+	/* TRISTATE */
+	{ .name = "tristate (y)", .cfg = CFG"CONFIG_TRISTATE=y\n",
+	  .data = { .tristate_val = TRI_YES } },
+	{ .name = "tristate (n)", .cfg = CFG"CONFIG_TRISTATE=n\n",
+	  .data = { .tristate_val = TRI_NO } },
+	{ .name = "tristate (m)", .cfg = CFG"CONFIG_TRISTATE=m\n",
+	  .data = { .tristate_val = TRI_MODULE } },
+	{ .name = "tristate (int)", .fails = 1, .cfg = CFG"CONFIG_TRISTATE=1" },
+	{ .name = "tristate (bad)", .fails = 1, .cfg = CFG"CONFIG_TRISTATE=M" },
+	/* BOOL */
+	{ .name = "bool (y)", .cfg = CFG"CONFIG_BOOL=y\n",
+	  .data = { .bool_val = true } },
+	{ .name = "bool (n)", .cfg = CFG"CONFIG_BOOL=n\n",
+	  .data = { .bool_val = false } },
+	{ .name = "bool (tristate)", .fails = 1, .cfg = CFG"CONFIG_BOOL=m" },
+	{ .name = "bool (int)", .fails = 1, .cfg = CFG"CONFIG_BOOL=1" },
+	/* CHAR */
+	{ .name = "char (tristate)", .cfg = CFG"CONFIG_CHAR=m\n",
+	  .data = { .char_val = 'm' } },
+	{ .name = "char (bad)", .fails = 1, .cfg = CFG"CONFIG_CHAR=q\n" },
+	{ .name = "char (empty)", .fails = 1, .cfg = CFG"CONFIG_CHAR=\n" },
+	{ .name = "char (str)", .fails = 1, .cfg = CFG"CONFIG_CHAR=\"y\"\n" },
+	/* STRING */
+	{ .name = "str (empty)", .cfg = CFG"CONFIG_STR=\"\"\n",
+	  .data = { .str_val = "\0\0\0\0\0\0\0" } },
+	{ .name = "str (padded)", .cfg = CFG"CONFIG_STR=\"abra\"\n",
+	  .data = { .str_val = "abra\0\0\0" } },
+	{ .name = "str (too long)", .cfg = CFG"CONFIG_STR=\"abracada\"\n",
+	  .data = { .str_val = "abracad" } },
+	{ .name = "str (no value)", .fails = 1, .cfg = CFG"CONFIG_STR=\n" },
+	{ .name = "str (bad value)", .fails = 1, .cfg = CFG"CONFIG_STR=bla\n" },
+	/* INTEGERS */
+	{
+		.name = "integer forms",
+		.cfg = CFG
+		       "CONFIG_CHAR=0xA\n"
+		       "CONFIG_USHORT=0462\n"
+		       "CONFIG_INT=-100\n"
+		       "CONFIG_ULONG=+1000000000000",
+		.data = {
+			.char_val = 0xA,
+			.ushort_val = 0462,
+			.int_val = -100,
+			.ulong_val = 1000000000000,
+		},
+	},
+	{ .name = "int (bad)", .fails = 1, .cfg = CFG"CONFIG_INT=abc" },
+	{ .name = "int (str)", .fails = 1, .cfg = CFG"CONFIG_INT=\"abc\"" },
+	{ .name = "int (empty)", .fails = 1, .cfg = CFG"CONFIG_INT=" },
+	{ .name = "int (mixed)", .fails = 1, .cfg = CFG"CONFIG_INT=123abc" },
+	{ .name = "int (max)", .cfg = CFG"CONFIG_INT=2147483647",
+	  .data = { .int_val = 2147483647 } },
+	{ .name = "int (min)", .cfg = CFG"CONFIG_INT=-2147483648",
+	  .data = { .int_val = -2147483648 } },
+	{ .name = "int (max+1)", .fails = 1, .cfg = CFG"CONFIG_INT=2147483648" },
+	{ .name = "int (min-1)", .fails = 1, .cfg = CFG"CONFIG_INT=-2147483649" },
+	{ .name = "ushort (max)", .cfg = CFG"CONFIG_USHORT=65535",
+	  .data = { .ushort_val = 65535 } },
+	{ .name = "ushort (min)", .cfg = CFG"CONFIG_USHORT=0",
+	  .data = { .ushort_val = 0 } },
+	{ .name = "ushort (max+1)", .fails = 1, .cfg = CFG"CONFIG_USHORT=65536" },
+	{ .name = "ushort (min-1)", .fails = 1, .cfg = CFG"CONFIG_USHORT=-1" },
+	{ .name = "u64 (max)", .cfg = CFG"CONFIG_ULONG=0xffffffffffffffff",
+	  .data = { .ulong_val = 0xffffffffffffffff } },
+	{ .name = "u64 (min)", .cfg = CFG"CONFIG_ULONG=0",
+	  .data = { .ulong_val = 0 } },
+	{ .name = "u64 (max+1)", .fails = 1, .cfg = CFG"CONFIG_ULONG=0x10000000000000000" },
+};
+
+void test_core_extern(void)
+{
+	const uint32_t kern_ver = get_kernel_version();
+	int err, i, j;
+	struct test_core_extern *skel = NULL;
+	uint64_t *got, *exp;
+	int n = sizeof(*skel->data) / sizeof(uint64_t);
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		struct test_case *t = &test_cases[i];
+		DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts,
+			.kconfig = t->cfg,
+		);
+
+		if (!test__start_subtest(t->name))
+			continue;
+
+		skel = test_core_extern__open_opts(&opts);
+		if (!ASSERT_OK_PTR(skel, "skel_open"))
+			goto cleanup;
+		err = test_core_extern__load(skel);
+		if (t->fails) {
+			ASSERT_ERR(err, "skel_load_should_fail");
+			goto cleanup;
+		} else if (!ASSERT_OK(err, "skel_load")) {
+			goto cleanup;
+		}
+		err = test_core_extern__attach(skel);
+		if (!ASSERT_OK(err, "attach_raw_tp"))
+			goto cleanup;
+
+		usleep(1);
+
+		t->data.kern_ver = kern_ver;
+		t->data.missing_val = 0xDEADC0DE;
+		got = (uint64_t *)skel->data;
+		exp = (uint64_t *)&t->data;
+		for (j = 0; j < n; j++) {
+			ASSERT_EQ(got[j], exp[j], "result");
+		}
+cleanup:
+		test_core_extern__destroy(skel);
+		skel = NULL;
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_kern.c b/tools/testing/selftests/bpf/prog_tests/core_kern.c
new file mode 100644
index 000000000000..6a5a1c019a5d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_kern.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "test_progs.h"
+#include "core_kern.lskel.h"
+
+void test_core_kern_lskel(void)
+{
+	struct core_kern_lskel *skel;
+	int link_fd;
+
+	skel = core_kern_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	link_fd = core_kern_lskel__core_relo_proto__attach(skel);
+	if (!ASSERT_GT(link_fd, 0, "attach(core_relo_proto)"))
+		goto cleanup;
+
+	/* trigger tracepoints */
+	usleep(1);
+	ASSERT_TRUE(skel->bss->proto_out[0], "bpf_core_type_exists");
+	ASSERT_FALSE(skel->bss->proto_out[1], "!bpf_core_type_exists");
+	ASSERT_TRUE(skel->bss->proto_out[2], "bpf_core_type_exists. nested");
+
+cleanup:
+	core_kern_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_kern_overflow.c b/tools/testing/selftests/bpf/prog_tests/core_kern_overflow.c
new file mode 100644
index 000000000000..04cc145bc26a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_kern_overflow.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "test_progs.h"
+#include "core_kern_overflow.lskel.h"
+
+void test_core_kern_overflow_lskel(void)
+{
+	struct core_kern_overflow_lskel *skel;
+
+	skel = core_kern_overflow_lskel__open_and_load();
+	if (!ASSERT_NULL(skel, "open_and_load"))
+		core_kern_overflow_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_read_macros.c b/tools/testing/selftests/bpf/prog_tests/core_read_macros.c
new file mode 100644
index 000000000000..96f5cf3c6fa2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_read_macros.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+
+struct callback_head {
+	struct callback_head *next;
+	void (*func)(struct callback_head *head);
+};
+
+/* ___shuffled flavor is just an illusion for BPF code, it doesn't really
+ * exist and user-space needs to provide data in the memory layout that
+ * matches callback_head. We just defined ___shuffled flavor to make it easier
+ * to work with the skeleton
+ */
+struct callback_head___shuffled {
+	struct callback_head___shuffled *next;
+	void (*func)(struct callback_head *head);
+};
+
+#include "test_core_read_macros.skel.h"
+
+void test_core_read_macros(void)
+{
+	int duration = 0, err;
+	struct test_core_read_macros* skel;
+	struct test_core_read_macros__bss *bss;
+	struct callback_head u_probe_in;
+	struct callback_head___shuffled u_core_in;
+
+	skel = test_core_read_macros__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+	bss = skel->bss;
+	bss->my_pid = getpid();
+
+	/* next pointers have to be set from the kernel side */
+	bss->k_probe_in.func = (void *)(long)0x1234;
+	bss->k_core_in.func = (void *)(long)0xabcd;
+
+	u_probe_in.next = &u_probe_in;
+	u_probe_in.func = (void *)(long)0x5678;
+	bss->u_probe_in = &u_probe_in;
+
+	u_core_in.next = &u_core_in;
+	u_core_in.func = (void *)(long)0xdbca;
+	bss->u_core_in = &u_core_in;
+
+	err = test_core_read_macros__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	ASSERT_EQ(bss->k_probe_out, 0x1234, "k_probe_out");
+	ASSERT_EQ(bss->k_core_out, 0xabcd, "k_core_out");
+
+	ASSERT_EQ(bss->u_probe_out, 0x5678, "u_probe_out");
+	ASSERT_EQ(bss->u_core_out, 0xdbca, "u_core_out");
+
+cleanup:
+	test_core_read_macros__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
new file mode 100644
index 000000000000..08963c82f30b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -0,0 +1,1158 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "progs/core_reloc_types.h"
+#include "test_kmods/bpf_testmod.h"
+#include <linux/limits.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <bpf/btf.h>
+
+static int duration = 0;
+
+#define STRUCT_TO_CHAR_PTR(struct_name) (const char *)&(struct struct_name)
+
+#define MODULES_CASE(name, pg_name, tp_name) {				\
+	.case_name = name,						\
+	.bpf_obj_file = "test_core_reloc_module.bpf.o",			\
+	.btf_src_file = NULL, /* find in kernel module BTFs */		\
+	.input = "",							\
+	.input_len = 0,							\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_module_output) {	\
+		.read_ctx_sz = sizeof(struct bpf_testmod_test_read_ctx),\
+		.read_ctx_exists = true,				\
+		.buf_exists = true,					\
+		.len_exists = true,					\
+		.off_exists = true,					\
+		.len = 123,						\
+		.off = 0,						\
+		.comm = "test_progs",					\
+		.comm_len = sizeof("test_progs"),			\
+	},								\
+	.output_len = sizeof(struct core_reloc_module_output),		\
+	.prog_name = pg_name,						\
+	.raw_tp_name = tp_name,						\
+	.trigger = __trigger_module_test_read,				\
+	.needs_testmod = true,						\
+}
+
+#define FLAVORS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
+	.a = 42,							\
+	.b = 0xc001,							\
+	.c = 0xbeef,							\
+}
+
+#define FLAVORS_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_flavors.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_flavors"				\
+
+#define FLAVORS_CASE(name) {						\
+	FLAVORS_CASE_COMMON(name),					\
+	.input = FLAVORS_DATA(core_reloc_##name),			\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = FLAVORS_DATA(core_reloc_flavors),			\
+	.output_len = sizeof(struct core_reloc_flavors),		\
+}
+
+#define FLAVORS_ERR_CASE(name) {					\
+	FLAVORS_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define NESTING_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
+	.a = { .a = { .a = 42 } },					\
+	.b = { .b = { .b = 0xc001 } },					\
+}
+
+#define NESTING_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_nesting.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_nesting"				\
+
+#define NESTING_CASE(name) {						\
+	NESTING_CASE_COMMON(name),					\
+	.input = NESTING_DATA(core_reloc_##name),			\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = NESTING_DATA(core_reloc_nesting),			\
+	.output_len = sizeof(struct core_reloc_nesting)			\
+}
+
+#define NESTING_ERR_CASE(name) {					\
+	NESTING_CASE_COMMON(name),					\
+	.fails = true,							\
+	.run_btfgen_fails = true,					\
+}
+
+#define ARRAYS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
+	.a = { [2] = 1, [3] = 11 },					\
+	.b = { [1] = { [2] = { [3] = 2 } } },				\
+	.c = { [1] = { .c =  3 } },					\
+	.d = { [0] = { [0] = { .d = 4 } } },				\
+}
+
+#define ARRAYS_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_arrays.bpf.o",			\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_arrays"					\
+
+#define ARRAYS_CASE(name) {						\
+	ARRAYS_CASE_COMMON(name),					\
+	.input = ARRAYS_DATA(core_reloc_##name),			\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_arrays_output) {	\
+		.a2   = 1,						\
+		.a3   = 12,						\
+		.b123 = 2,						\
+		.c1c  = 3,						\
+		.d00d = 4,						\
+		.f10c = 0,						\
+	},								\
+	.output_len = sizeof(struct core_reloc_arrays_output)		\
+}
+
+#define ARRAYS_ERR_CASE(name) {						\
+	ARRAYS_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define PRIMITIVES_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
+	.a = 1,								\
+	.b = 2,								\
+	.c = 3,								\
+	.d = (void *)4,							\
+	.f = (void *)5,							\
+}
+
+#define PRIMITIVES_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_primitives.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_primitives"				\
+
+#define PRIMITIVES_CASE(name) {						\
+	PRIMITIVES_CASE_COMMON(name),					\
+	.input = PRIMITIVES_DATA(core_reloc_##name),			\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = PRIMITIVES_DATA(core_reloc_primitives),		\
+	.output_len = sizeof(struct core_reloc_primitives),		\
+}
+
+#define PRIMITIVES_ERR_CASE(name) {					\
+	PRIMITIVES_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define MODS_CASE(name) {						\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_mods.bpf.o",			\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.input = STRUCT_TO_CHAR_PTR(core_reloc_##name) {		\
+		.a = 1,							\
+		.b = 2,							\
+		.c = (void *)3,						\
+		.d = (void *)4,						\
+		.e = { [2] = 5 },					\
+		.f = { [1] = 6 },					\
+		.g = { .x = 7 },					\
+		.h = { .y = 8 },					\
+	},								\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_mods_output) {		\
+		.a = 1, .b = 2, .c = 3, .d = 4,				\
+		.e = 5, .f = 6, .g = 7, .h = 8,				\
+	},								\
+	.output_len = sizeof(struct core_reloc_mods_output),		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_mods",					\
+}
+
+#define PTR_AS_ARR_CASE(name) {						\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_ptr_as_arr.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.input = (const char *)&(struct core_reloc_##name []){		\
+		{ .a = 1 },						\
+		{ .a = 2 },						\
+		{ .a = 3 },						\
+	},								\
+	.input_len = 3 * sizeof(struct core_reloc_##name),		\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_ptr_as_arr) {		\
+		.a = 3,							\
+	},								\
+	.output_len = sizeof(struct core_reloc_ptr_as_arr),		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_ptr_as_arr",				\
+}
+
+#define INTS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
+	.u8_field = 1,							\
+	.s8_field = 2,							\
+	.u16_field = 3,							\
+	.s16_field = 4,							\
+	.u32_field = 5,							\
+	.s32_field = 6,							\
+	.u64_field = 7,							\
+	.s64_field = 8,							\
+}
+
+#define INTS_CASE_COMMON(name)						\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_ints.bpf.o",			\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_ints"
+
+#define INTS_CASE(name) {						\
+	INTS_CASE_COMMON(name),						\
+	.input = INTS_DATA(core_reloc_##name),				\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = INTS_DATA(core_reloc_ints),				\
+	.output_len = sizeof(struct core_reloc_ints),			\
+}
+
+#define INTS_ERR_CASE(name) {						\
+	INTS_CASE_COMMON(name),						\
+	.fails = true,							\
+}
+
+#define FIELD_EXISTS_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_existence.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_existence"
+
+#define BITFIELDS_CASE_COMMON(objfile, test_name_prefix,  name)		\
+	.case_name = test_name_prefix#name,				\
+	.bpf_obj_file = objfile,					\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o"
+
+#define BITFIELDS_CASE(name, ...) {					\
+	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_probed.bpf.o",	\
+			      "probed:", name),				\
+	.input = STRUCT_TO_CHAR_PTR(core_reloc_##name) __VA_ARGS__,	\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_bitfields_output)	\
+		__VA_ARGS__,						\
+	.output_len = sizeof(struct core_reloc_bitfields_output),	\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_bitfields",				\
+}, {									\
+	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_direct.bpf.o",	\
+			      "direct:", name),				\
+	.input = STRUCT_TO_CHAR_PTR(core_reloc_##name) __VA_ARGS__,	\
+	.input_len = sizeof(struct core_reloc_##name),			\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_bitfields_output)	\
+		__VA_ARGS__,						\
+	.output_len = sizeof(struct core_reloc_bitfields_output),	\
+	.prog_name = "test_core_bitfields_direct",			\
+}
+
+
+#define BITFIELDS_ERR_CASE(name) {					\
+	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_probed.bpf.o",	\
+			      "probed:", name),				\
+	.fails = true,							\
+	.run_btfgen_fails = true,					\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_bitfields",				\
+}, {									\
+	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_direct.bpf.o",	\
+			      "direct:", name),				\
+	.fails = true,							\
+	.run_btfgen_fails = true,							\
+	.prog_name = "test_core_bitfields_direct",			\
+}
+
+#define SIZE_CASE_COMMON(name)						\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_size.bpf.o",			\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_size"
+
+#define SIZE_OUTPUT_DATA(type)						\
+	STRUCT_TO_CHAR_PTR(core_reloc_size_output) {			\
+		.int_sz = sizeof(((type *)0)->int_field),		\
+		.int_off = offsetof(type, int_field),			\
+		.struct_sz = sizeof(((type *)0)->struct_field),		\
+		.struct_off = offsetof(type, struct_field),		\
+		.union_sz = sizeof(((type *)0)->union_field),		\
+		.union_off = offsetof(type, union_field),		\
+		.arr_sz = sizeof(((type *)0)->arr_field),		\
+		.arr_off = offsetof(type, arr_field),			\
+		.arr_elem_sz = sizeof(((type *)0)->arr_field[1]),	\
+		.arr_elem_off = offsetof(type, arr_field[1]),		\
+		.ptr_sz = 8, /* always 8-byte pointer for BPF */	\
+		.ptr_off = offsetof(type, ptr_field),			\
+		.enum_sz = sizeof(((type *)0)->enum_field),		\
+		.enum_off = offsetof(type, enum_field),			\
+		.float_sz = sizeof(((type *)0)->float_field),		\
+		.float_off = offsetof(type, float_field),		\
+	}
+
+#define SIZE_CASE(name) {						\
+	SIZE_CASE_COMMON(name),						\
+	.input_len = 0,							\
+	.output = SIZE_OUTPUT_DATA(struct core_reloc_##name),		\
+	.output_len = sizeof(struct core_reloc_size_output),		\
+}
+
+#define SIZE_ERR_CASE(name) {						\
+	SIZE_CASE_COMMON(name),						\
+	.fails = true,							\
+	.run_btfgen_fails = true,					\
+}
+
+#define TYPE_BASED_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_type_based.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_type_based"
+
+#define TYPE_BASED_CASE(name, ...) {					\
+	TYPE_BASED_CASE_COMMON(name),					\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_type_based_output)	\
+			__VA_ARGS__,					\
+	.output_len = sizeof(struct core_reloc_type_based_output),	\
+}
+
+#define TYPE_BASED_ERR_CASE(name) {					\
+	TYPE_BASED_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define TYPE_ID_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_type_id.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_type_id"
+
+#define TYPE_ID_CASE(name, setup_fn) {					\
+	TYPE_ID_CASE_COMMON(name),					\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_type_id_output) {},	\
+	.output_len = sizeof(struct core_reloc_type_id_output),		\
+	.setup = setup_fn,						\
+}
+
+#define TYPE_ID_ERR_CASE(name) {					\
+	TYPE_ID_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define ENUMVAL_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_enumval.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_enumval"
+
+#define ENUMVAL_CASE(name, ...) {					\
+	ENUMVAL_CASE_COMMON(name),					\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_enumval_output)		\
+			__VA_ARGS__,					\
+	.output_len = sizeof(struct core_reloc_enumval_output),		\
+}
+
+#define ENUMVAL_ERR_CASE(name) {					\
+	ENUMVAL_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+#define ENUM64VAL_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_enum64val.bpf.o",		\
+	.btf_src_file = "btf__core_reloc_" #name ".bpf.o",		\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_enum64val"
+
+#define ENUM64VAL_CASE(name, ...) {					\
+	ENUM64VAL_CASE_COMMON(name),					\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_enum64val_output)	\
+			__VA_ARGS__,					\
+	.output_len = sizeof(struct core_reloc_enum64val_output),	\
+}
+
+#define ENUM64VAL_ERR_CASE(name) {					\
+	ENUM64VAL_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
+struct core_reloc_test_case;
+
+typedef int (*setup_test_fn)(struct core_reloc_test_case *test);
+typedef int (*trigger_test_fn)(const struct core_reloc_test_case *test);
+
+struct core_reloc_test_case {
+	const char *case_name;
+	const char *bpf_obj_file;
+	const char *btf_src_file;
+	const char *input;
+	int input_len;
+	const char *output;
+	int output_len;
+	bool fails;
+	bool run_btfgen_fails;
+	bool needs_testmod;
+	bool relaxed_core_relocs;
+	const char *prog_name;
+	const char *raw_tp_name;
+	setup_test_fn setup;
+	trigger_test_fn trigger;
+};
+
+static int find_btf_type(const struct btf *btf, const char *name, __u32 kind)
+{
+	int id;
+
+	id = btf__find_by_name_kind(btf, name, kind);
+	if (CHECK(id <= 0, "find_type_id", "failed to find '%s', kind %d: %d\n", name, kind, id))
+		return -1;
+
+	return id;
+}
+
+static int setup_type_id_case_local(struct core_reloc_test_case *test)
+{
+	struct core_reloc_type_id_output *exp = (void *)test->output;
+	struct btf *local_btf = btf__parse(test->bpf_obj_file, NULL);
+	struct btf *targ_btf = btf__parse(test->btf_src_file, NULL);
+	const struct btf_type *t;
+	const char *name;
+	int i;
+
+	if (!ASSERT_OK_PTR(local_btf, "local_btf") || !ASSERT_OK_PTR(targ_btf, "targ_btf")) {
+		btf__free(local_btf);
+		btf__free(targ_btf);
+		return -EINVAL;
+	}
+
+	exp->local_anon_struct = -1;
+	exp->local_anon_union = -1;
+	exp->local_anon_enum = -1;
+	exp->local_anon_func_proto_ptr = -1;
+	exp->local_anon_void_ptr = -1;
+	exp->local_anon_arr = -1;
+
+	for (i = 1; i < btf__type_cnt(local_btf); i++)
+	{
+		t = btf__type_by_id(local_btf, i);
+		/* we are interested only in anonymous types */
+		if (t->name_off)
+			continue;
+
+		if (btf_is_struct(t) && btf_vlen(t) &&
+		    (name = btf__name_by_offset(local_btf, btf_members(t)[0].name_off)) &&
+		    strcmp(name, "marker_field") == 0) {
+			exp->local_anon_struct = i;
+		} else if (btf_is_union(t) && btf_vlen(t) &&
+			 (name = btf__name_by_offset(local_btf, btf_members(t)[0].name_off)) &&
+			 strcmp(name, "marker_field") == 0) {
+			exp->local_anon_union = i;
+		} else if (btf_is_enum(t) && btf_vlen(t) &&
+			 (name = btf__name_by_offset(local_btf, btf_enum(t)[0].name_off)) &&
+			 strcmp(name, "MARKER_ENUM_VAL") == 0) {
+			exp->local_anon_enum = i;
+		} else if (btf_is_ptr(t) && (t = btf__type_by_id(local_btf, t->type))) {
+			if (btf_is_func_proto(t) && (t = btf__type_by_id(local_btf, t->type)) &&
+			    btf_is_int(t) && (name = btf__name_by_offset(local_btf, t->name_off)) &&
+			    strcmp(name, "_Bool") == 0) {
+				/* ptr -> func_proto -> _Bool */
+				exp->local_anon_func_proto_ptr = i;
+			} else if (btf_is_void(t)) {
+				/* ptr -> void */
+				exp->local_anon_void_ptr = i;
+			}
+		} else if (btf_is_array(t) && (t = btf__type_by_id(local_btf, btf_array(t)->type)) &&
+			   btf_is_int(t) && (name = btf__name_by_offset(local_btf, t->name_off)) &&
+			   strcmp(name, "_Bool") == 0) {
+			/* _Bool[] */
+			exp->local_anon_arr = i;
+		}
+	}
+
+	exp->local_struct = find_btf_type(local_btf, "a_struct", BTF_KIND_STRUCT);
+	exp->local_union = find_btf_type(local_btf, "a_union", BTF_KIND_UNION);
+	exp->local_enum = find_btf_type(local_btf, "an_enum", BTF_KIND_ENUM);
+	exp->local_int = find_btf_type(local_btf, "int", BTF_KIND_INT);
+	exp->local_struct_typedef = find_btf_type(local_btf, "named_struct_typedef", BTF_KIND_TYPEDEF);
+	exp->local_func_proto_typedef = find_btf_type(local_btf, "func_proto_typedef", BTF_KIND_TYPEDEF);
+	exp->local_arr_typedef = find_btf_type(local_btf, "arr_typedef", BTF_KIND_TYPEDEF);
+
+	btf__free(local_btf);
+	btf__free(targ_btf);
+	return 0;
+}
+
+static int setup_type_id_case_success(struct core_reloc_test_case *test) {
+	struct core_reloc_type_id_output *exp = (void *)test->output;
+	struct btf *targ_btf;
+	int err;
+
+	err = setup_type_id_case_local(test);
+	if (err)
+		return err;
+
+	targ_btf = btf__parse(test->btf_src_file, NULL);
+
+	exp->targ_struct = find_btf_type(targ_btf, "a_struct", BTF_KIND_STRUCT);
+	exp->targ_union = find_btf_type(targ_btf, "a_union", BTF_KIND_UNION);
+	exp->targ_enum = find_btf_type(targ_btf, "an_enum", BTF_KIND_ENUM);
+	exp->targ_int = find_btf_type(targ_btf, "int", BTF_KIND_INT);
+	exp->targ_struct_typedef = find_btf_type(targ_btf, "named_struct_typedef", BTF_KIND_TYPEDEF);
+	exp->targ_func_proto_typedef = find_btf_type(targ_btf, "func_proto_typedef", BTF_KIND_TYPEDEF);
+	exp->targ_arr_typedef = find_btf_type(targ_btf, "arr_typedef", BTF_KIND_TYPEDEF);
+
+	btf__free(targ_btf);
+	return 0;
+}
+
+static int setup_type_id_case_failure(struct core_reloc_test_case *test)
+{
+	struct core_reloc_type_id_output *exp = (void *)test->output;
+	int err;
+
+	err = setup_type_id_case_local(test);
+	if (err)
+		return err;
+
+	exp->targ_struct = 0;
+	exp->targ_union = 0;
+	exp->targ_enum = 0;
+	exp->targ_int = 0;
+	exp->targ_struct_typedef = 0;
+	exp->targ_func_proto_typedef = 0;
+	exp->targ_arr_typedef = 0;
+
+	return 0;
+}
+
+static int __trigger_module_test_read(const struct core_reloc_test_case *test)
+{
+	struct core_reloc_module_output *exp = (void *)test->output;
+
+	trigger_module_test_read(exp->len);
+	return 0;
+}
+
+static const struct core_reloc_test_case test_cases[] = {
+	/* validate we can find kernel image and use its BTF for relocs */
+	{
+		.case_name = "kernel",
+		.bpf_obj_file = "test_core_reloc_kernel.bpf.o",
+		.btf_src_file = NULL, /* load from /lib/modules/$(uname -r) */
+		.input = "",
+		.input_len = 0,
+		.output = STRUCT_TO_CHAR_PTR(core_reloc_kernel_output) {
+			.valid = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, },
+			.comm = "test_progs",
+			.comm_len = sizeof("test_progs"),
+			.local_task_struct_matches = true,
+		},
+		.output_len = sizeof(struct core_reloc_kernel_output),
+		.raw_tp_name = "sys_enter",
+		.prog_name = "test_core_kernel",
+	},
+
+	/* validate we can find kernel module BTF types for relocs/attach */
+	MODULES_CASE("module_probed", "test_core_module_probed", "bpf_testmod_test_read"),
+	MODULES_CASE("module_direct", "test_core_module_direct", NULL),
+
+	/* validate BPF program can use multiple flavors to match against
+	 * single target BTF type
+	 */
+	FLAVORS_CASE(flavors),
+
+	FLAVORS_ERR_CASE(flavors__err_wrong_name),
+
+	/* various struct/enum nesting and resolution scenarios */
+	NESTING_CASE(nesting),
+	NESTING_CASE(nesting___anon_embed),
+	NESTING_CASE(nesting___struct_union_mixup),
+	NESTING_CASE(nesting___extra_nesting),
+	NESTING_CASE(nesting___dup_compat_types),
+
+	NESTING_ERR_CASE(nesting___err_missing_field),
+	NESTING_ERR_CASE(nesting___err_array_field),
+	NESTING_ERR_CASE(nesting___err_missing_container),
+	NESTING_ERR_CASE(nesting___err_nonstruct_container),
+	NESTING_ERR_CASE(nesting___err_array_container),
+	NESTING_ERR_CASE(nesting___err_dup_incompat_types),
+	NESTING_ERR_CASE(nesting___err_partial_match_dups),
+	NESTING_ERR_CASE(nesting___err_too_deep),
+
+	/* various array access relocation scenarios */
+	ARRAYS_CASE(arrays),
+	ARRAYS_CASE(arrays___diff_arr_dim),
+	ARRAYS_CASE(arrays___diff_arr_val_sz),
+	ARRAYS_CASE(arrays___equiv_zero_sz_arr),
+	ARRAYS_CASE(arrays___fixed_arr),
+
+	ARRAYS_ERR_CASE(arrays___err_too_small),
+	ARRAYS_ERR_CASE(arrays___err_too_shallow),
+	ARRAYS_ERR_CASE(arrays___err_non_array),
+	ARRAYS_ERR_CASE(arrays___err_wrong_val_type),
+	ARRAYS_ERR_CASE(arrays___err_bad_zero_sz_arr),
+	ARRAYS_ERR_CASE(arrays___err_bad_signed_arr_elem_sz),
+
+	/* enum/ptr/int handling scenarios */
+	PRIMITIVES_CASE(primitives),
+	PRIMITIVES_CASE(primitives___diff_enum_def),
+	PRIMITIVES_CASE(primitives___diff_func_proto),
+	PRIMITIVES_CASE(primitives___diff_ptr_type),
+
+	PRIMITIVES_ERR_CASE(primitives___err_non_enum),
+	PRIMITIVES_ERR_CASE(primitives___err_non_int),
+	PRIMITIVES_ERR_CASE(primitives___err_non_ptr),
+
+	/* const/volatile/restrict and typedefs scenarios */
+	MODS_CASE(mods),
+	MODS_CASE(mods___mod_swap),
+	MODS_CASE(mods___typedefs),
+
+	/* handling "ptr is an array" semantics */
+	PTR_AS_ARR_CASE(ptr_as_arr),
+	PTR_AS_ARR_CASE(ptr_as_arr___diff_sz),
+
+	/* int signedness/sizing/bitfield handling */
+	INTS_CASE(ints),
+	INTS_CASE(ints___bool),
+	INTS_CASE(ints___reverse_sign),
+
+	/* validate edge cases of capturing relocations */
+	{
+		.case_name = "misc",
+		.bpf_obj_file = "test_core_reloc_misc.bpf.o",
+		.btf_src_file = "btf__core_reloc_misc.bpf.o",
+		.input = (const char *)&(struct core_reloc_misc_extensible[]){
+			{ .a = 1 },
+			{ .a = 2 }, /* not read */
+			{ .a = 3 },
+		},
+		.input_len = 4 * sizeof(int),
+		.output = STRUCT_TO_CHAR_PTR(core_reloc_misc_output) {
+			.a = 1,
+			.b = 1,
+			.c = 0, /* BUG in clang, should be 3 */
+		},
+		.output_len = sizeof(struct core_reloc_misc_output),
+		.raw_tp_name = "sys_enter",
+		.prog_name = "test_core_misc",
+	},
+
+	/* validate field existence checks */
+	{
+		FIELD_EXISTS_CASE_COMMON(existence),
+		.input = STRUCT_TO_CHAR_PTR(core_reloc_existence) {
+			.a = 1,
+			.b = 2,
+			.c = 3,
+			.arr = { 4 },
+			.s = { .x = 5 },
+		},
+		.input_len = sizeof(struct core_reloc_existence),
+		.output = STRUCT_TO_CHAR_PTR(core_reloc_existence_output) {
+			.a_exists = 1,
+			.b_exists = 1,
+			.c_exists = 1,
+			.arr_exists = 1,
+			.s_exists = 1,
+			.a_value = 1,
+			.b_value = 2,
+			.c_value = 3,
+			.arr_value = 4,
+			.s_value = 5,
+		},
+		.output_len = sizeof(struct core_reloc_existence_output),
+	},
+	{
+		FIELD_EXISTS_CASE_COMMON(existence___minimal),
+		.input = STRUCT_TO_CHAR_PTR(core_reloc_existence___minimal) {
+			.a = 42,
+		},
+		.input_len = sizeof(struct core_reloc_existence___minimal),
+		.output = STRUCT_TO_CHAR_PTR(core_reloc_existence_output) {
+			.a_exists = 1,
+			.b_exists = 0,
+			.c_exists = 0,
+			.arr_exists = 0,
+			.s_exists = 0,
+			.a_value = 42,
+			.b_value = 0xff000002u,
+			.c_value = 0xff000003u,
+			.arr_value = 0xff000004u,
+			.s_value = 0xff000005u,
+		},
+		.output_len = sizeof(struct core_reloc_existence_output),
+	},
+	{
+		FIELD_EXISTS_CASE_COMMON(existence___wrong_field_defs),
+		.input = STRUCT_TO_CHAR_PTR(core_reloc_existence___wrong_field_defs) {
+		},
+		.input_len = sizeof(struct core_reloc_existence___wrong_field_defs),
+		.output = STRUCT_TO_CHAR_PTR(core_reloc_existence_output) {
+			.a_exists = 0,
+			.b_exists = 0,
+			.c_exists = 0,
+			.arr_exists = 0,
+			.s_exists = 0,
+			.a_value = 0xff000001u,
+			.b_value = 0xff000002u,
+			.c_value = 0xff000003u,
+			.arr_value = 0xff000004u,
+			.s_value = 0xff000005u,
+		},
+		.output_len = sizeof(struct core_reloc_existence_output),
+	},
+
+	/* bitfield relocation checks */
+	BITFIELDS_CASE(bitfields, {
+		.ub1 = 1,
+		.ub2 = 2,
+		.ub7 = 96,
+		.sb4 = -7,
+		.sb20 = -0x76543,
+		.u32 = 0x80000000,
+		.s32 = -0x76543210,
+	}),
+	BITFIELDS_CASE(bitfields___bit_sz_change, {
+		.ub1 = 6,
+		.ub2 = 0xABCDE,
+		.ub7 = 1,
+		.sb4 = -1,
+		.sb20 = -0x17654321,
+		.u32 = 0xBEEF,
+		.s32 = -0x3FEDCBA987654321LL,
+	}),
+	BITFIELDS_CASE(bitfields___bitfield_vs_int, {
+		.ub1 = 0xFEDCBA9876543210LL,
+		.ub2 = 0xA6,
+		.ub7 = -0x7EDCBA987654321LL,
+		.sb4 = -0x6123456789ABCDELL,
+		.sb20 = 0xD00DLL,
+		.u32 = -0x76543,
+		.s32 = 0x0ADEADBEEFBADB0BLL,
+	}),
+	BITFIELDS_CASE(bitfields___just_big_enough, {
+		.ub1 = 0xFLL,
+		.ub2 = 0x0812345678FEDCBALL,
+	}),
+	BITFIELDS_ERR_CASE(bitfields___err_too_big_bitfield),
+
+	/* field size and offset relocation checks */
+	SIZE_CASE(size),
+	SIZE_CASE(size___diff_sz),
+	SIZE_CASE(size___diff_offs),
+	SIZE_ERR_CASE(size___err_ambiguous),
+
+	/* validate type existence, match, and size relocations */
+	TYPE_BASED_CASE(type_based, {
+		.struct_exists = 1,
+		.complex_struct_exists = 1,
+		.union_exists = 1,
+		.enum_exists = 1,
+		.typedef_named_struct_exists = 1,
+		.typedef_anon_struct_exists = 1,
+		.typedef_struct_ptr_exists = 1,
+		.typedef_int_exists = 1,
+		.typedef_enum_exists = 1,
+		.typedef_void_ptr_exists = 1,
+		.typedef_restrict_ptr_exists = 1,
+		.typedef_func_proto_exists = 1,
+		.typedef_arr_exists = 1,
+
+		.struct_matches = 1,
+		.complex_struct_matches = 1,
+		.union_matches = 1,
+		.enum_matches = 1,
+		.typedef_named_struct_matches = 1,
+		.typedef_anon_struct_matches = 1,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 1,
+		.typedef_enum_matches = 1,
+		.typedef_void_ptr_matches = 1,
+		.typedef_restrict_ptr_matches = 1,
+		.typedef_func_proto_matches = 1,
+		.typedef_arr_matches = 1,
+
+		.struct_sz = sizeof(struct a_struct),
+		.union_sz = sizeof(union a_union),
+		.enum_sz = sizeof(enum an_enum),
+		.typedef_named_struct_sz = sizeof(named_struct_typedef),
+		.typedef_anon_struct_sz = sizeof(anon_struct_typedef),
+		.typedef_struct_ptr_sz = sizeof(struct_ptr_typedef),
+		.typedef_int_sz = sizeof(int_typedef),
+		.typedef_enum_sz = sizeof(enum_typedef),
+		.typedef_void_ptr_sz = sizeof(void_ptr_typedef),
+		.typedef_func_proto_sz = sizeof(func_proto_typedef),
+		.typedef_arr_sz = sizeof(arr_typedef),
+	}),
+	TYPE_BASED_CASE(type_based___all_missing, {
+		/* all zeros */
+	}),
+	TYPE_BASED_CASE(type_based___diff, {
+		.struct_exists = 1,
+		.complex_struct_exists = 1,
+		.union_exists = 1,
+		.enum_exists = 1,
+		.typedef_named_struct_exists = 1,
+		.typedef_anon_struct_exists = 1,
+		.typedef_struct_ptr_exists = 1,
+		.typedef_int_exists = 1,
+		.typedef_enum_exists = 1,
+		.typedef_void_ptr_exists = 1,
+		.typedef_func_proto_exists = 1,
+		.typedef_arr_exists = 1,
+
+		.struct_matches = 1,
+		.complex_struct_matches = 1,
+		.union_matches = 1,
+		.enum_matches = 1,
+		.typedef_named_struct_matches = 1,
+		.typedef_anon_struct_matches = 1,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 0,
+		.typedef_enum_matches = 1,
+		.typedef_void_ptr_matches = 1,
+		.typedef_func_proto_matches = 0,
+		.typedef_arr_matches = 0,
+
+		.struct_sz = sizeof(struct a_struct___diff),
+		.union_sz = sizeof(union a_union___diff),
+		.enum_sz = sizeof(enum an_enum___diff),
+		.typedef_named_struct_sz = sizeof(named_struct_typedef___diff),
+		.typedef_anon_struct_sz = sizeof(anon_struct_typedef___diff),
+		.typedef_struct_ptr_sz = sizeof(struct_ptr_typedef___diff),
+		.typedef_int_sz = sizeof(int_typedef___diff),
+		.typedef_enum_sz = sizeof(enum_typedef___diff),
+		.typedef_void_ptr_sz = sizeof(void_ptr_typedef___diff),
+		.typedef_func_proto_sz = sizeof(func_proto_typedef___diff),
+		.typedef_arr_sz = sizeof(arr_typedef___diff),
+	}),
+	TYPE_BASED_CASE(type_based___diff_sz, {
+		.struct_exists = 1,
+		.union_exists = 1,
+		.enum_exists = 1,
+		.typedef_named_struct_exists = 1,
+		.typedef_anon_struct_exists = 1,
+		.typedef_struct_ptr_exists = 1,
+		.typedef_int_exists = 1,
+		.typedef_enum_exists = 1,
+		.typedef_void_ptr_exists = 1,
+		.typedef_func_proto_exists = 1,
+		.typedef_arr_exists = 1,
+
+		.struct_matches = 0,
+		.union_matches = 0,
+		.enum_matches = 0,
+		.typedef_named_struct_matches = 0,
+		.typedef_anon_struct_matches = 0,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 0,
+		.typedef_enum_matches = 0,
+		.typedef_void_ptr_matches = 1,
+		.typedef_func_proto_matches = 0,
+		.typedef_arr_matches = 0,
+
+		.struct_sz = sizeof(struct a_struct___diff_sz),
+		.union_sz = sizeof(union a_union___diff_sz),
+		.enum_sz = sizeof(enum an_enum___diff_sz),
+		.typedef_named_struct_sz = sizeof(named_struct_typedef___diff_sz),
+		.typedef_anon_struct_sz = sizeof(anon_struct_typedef___diff_sz),
+		.typedef_struct_ptr_sz = sizeof(struct_ptr_typedef___diff_sz),
+		.typedef_int_sz = sizeof(int_typedef___diff_sz),
+		.typedef_enum_sz = sizeof(enum_typedef___diff_sz),
+		.typedef_void_ptr_sz = sizeof(void_ptr_typedef___diff_sz),
+		.typedef_func_proto_sz = sizeof(func_proto_typedef___diff_sz),
+		.typedef_arr_sz = sizeof(arr_typedef___diff_sz),
+	}),
+	TYPE_BASED_CASE(type_based___incompat, {
+		.enum_exists = 1,
+		.enum_matches = 1,
+		.enum_sz = sizeof(enum an_enum),
+	}),
+	TYPE_BASED_CASE(type_based___fn_wrong_args, {
+		.struct_exists = 1,
+		.struct_matches = 1,
+		.struct_sz = sizeof(struct a_struct),
+	}),
+
+	/* BTF_TYPE_ID_LOCAL/BTF_TYPE_ID_TARGET tests */
+	TYPE_ID_CASE(type_id, setup_type_id_case_success),
+	TYPE_ID_CASE(type_id___missing_targets, setup_type_id_case_failure),
+
+	/* Enumerator value existence and value relocations */
+	ENUMVAL_CASE(enumval, {
+		.named_val1_exists = true,
+		.named_val2_exists = true,
+		.named_val3_exists = true,
+		.anon_val1_exists = true,
+		.anon_val2_exists = true,
+		.anon_val3_exists = true,
+		.named_val1 = 1,
+		.named_val2 = 2,
+		.anon_val1 = 0x10,
+		.anon_val2 = 0x20,
+	}),
+	ENUMVAL_CASE(enumval___diff, {
+		.named_val1_exists = true,
+		.named_val2_exists = true,
+		.named_val3_exists = true,
+		.anon_val1_exists = true,
+		.anon_val2_exists = true,
+		.anon_val3_exists = true,
+		.named_val1 = 101,
+		.named_val2 = 202,
+		.anon_val1 = 0x11,
+		.anon_val2 = 0x22,
+	}),
+	ENUMVAL_CASE(enumval___val3_missing, {
+		.named_val1_exists = true,
+		.named_val2_exists = true,
+		.named_val3_exists = false,
+		.anon_val1_exists = true,
+		.anon_val2_exists = true,
+		.anon_val3_exists = false,
+		.named_val1 = 111,
+		.named_val2 = 222,
+		.anon_val1 = 0x111,
+		.anon_val2 = 0x222,
+	}),
+	ENUMVAL_ERR_CASE(enumval___err_missing),
+
+	/* 64bit enumerator value existence and value relocations */
+	ENUM64VAL_CASE(enum64val, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = true,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = true,
+		.unsigned_val1 = 0x1ffffffffULL,
+		.unsigned_val2 = 0x2,
+		.signed_val1 = 0x1ffffffffLL,
+		.signed_val2 = -2,
+	}),
+	ENUM64VAL_CASE(enum64val___diff, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = true,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = true,
+		.unsigned_val1 = 0x101ffffffffULL,
+		.unsigned_val2 = 0x202ffffffffULL,
+		.signed_val1 = -101,
+		.signed_val2 = -202,
+	}),
+	ENUM64VAL_CASE(enum64val___val3_missing, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = false,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = false,
+		.unsigned_val1 = 0x111ffffffffULL,
+		.unsigned_val2 = 0x222,
+		.signed_val1 = 0x111ffffffffLL,
+		.signed_val2 = -222,
+	}),
+	ENUM64VAL_ERR_CASE(enum64val___err_missing),
+};
+
+struct data {
+	char in[256];
+	char out[256];
+	bool skip;
+	uint64_t my_pid_tgid;
+};
+
+static size_t roundup_page(size_t sz)
+{
+	long page_size = sysconf(_SC_PAGE_SIZE);
+	return (sz + page_size - 1) / page_size * page_size;
+}
+
+static int run_btfgen(const char *src_btf, const char *dst_btf, const char *objpath)
+{
+	char command[4096];
+	int n;
+
+	n = snprintf(command, sizeof(command),
+		     "./bpftool gen min_core_btf %s %s %s",
+		     src_btf, dst_btf, objpath);
+	if (n < 0 || n >= sizeof(command))
+		return -1;
+
+	return system(command);
+}
+
+static void run_core_reloc_tests(bool use_btfgen)
+{
+	const size_t mmap_sz = roundup_page(sizeof(struct data));
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts);
+	struct core_reloc_test_case *test_case, test_case_copy;
+	const char *tp_name, *probe_name;
+	int err, i, equal, fd;
+	struct bpf_link *link = NULL;
+	struct bpf_map *data_map;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	uint64_t my_pid_tgid;
+	struct data *data;
+	void *mmap_data = NULL;
+
+	my_pid_tgid = getpid() | ((uint64_t)sys_gettid() << 32);
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		char btf_file[] = "/tmp/core_reloc.btf.XXXXXX";
+
+		test_case_copy = test_cases[i];
+		test_case = &test_case_copy;
+
+		if (!test__start_subtest(test_case->case_name))
+			continue;
+
+		if (test_case->needs_testmod && !env.has_testmod) {
+			test__skip();
+			continue;
+		}
+
+		/* generate a "minimal" BTF file and use it as source */
+		if (use_btfgen) {
+
+			if (!test_case->btf_src_file || test_case->run_btfgen_fails) {
+				test__skip();
+				continue;
+			}
+
+			fd = mkstemp(btf_file);
+			if (!ASSERT_GE(fd, 0, "btf_tmp"))
+				continue;
+			close(fd); /* we only need the path */
+			err = run_btfgen(test_case->btf_src_file, btf_file,
+					 test_case->bpf_obj_file);
+			if (!ASSERT_OK(err, "run_btfgen"))
+				continue;
+
+			test_case->btf_src_file = btf_file;
+		}
+
+		if (test_case->setup) {
+			err = test_case->setup(test_case);
+			if (CHECK(err, "test_setup", "test #%d setup failed: %d\n", i, err))
+				continue;
+		}
+
+		if (test_case->btf_src_file) {
+			err = access(test_case->btf_src_file, R_OK);
+			if (!ASSERT_OK(err, "btf_src_file"))
+				continue;
+		}
+
+		open_opts.btf_custom_path = test_case->btf_src_file;
+		obj = bpf_object__open_file(test_case->bpf_obj_file, &open_opts);
+		if (!ASSERT_OK_PTR(obj, "obj_open"))
+			goto cleanup;
+
+		probe_name = test_case->prog_name;
+		tp_name = test_case->raw_tp_name; /* NULL for tp_btf */
+		prog = bpf_object__find_program_by_name(obj, probe_name);
+		if (CHECK(!prog, "find_probe",
+			  "prog '%s' not found\n", probe_name))
+			goto cleanup;
+
+		err = bpf_object__load(obj);
+		if (err) {
+			if (!test_case->fails)
+				ASSERT_OK(err, "obj_load");
+			goto cleanup;
+		}
+
+		data_map = bpf_object__find_map_by_name(obj, ".bss");
+		if (CHECK(!data_map, "find_data_map", "data map not found\n"))
+			goto cleanup;
+
+		mmap_data = mmap(NULL, mmap_sz, PROT_READ | PROT_WRITE,
+				 MAP_SHARED, bpf_map__fd(data_map), 0);
+		if (CHECK(mmap_data == MAP_FAILED, "mmap",
+			  ".bss mmap failed: %d", errno)) {
+			mmap_data = NULL;
+			goto cleanup;
+		}
+		data = mmap_data;
+
+		memset(mmap_data, 0, sizeof(*data));
+		if (test_case->input_len)
+			memcpy(data->in, test_case->input, test_case->input_len);
+		data->my_pid_tgid = my_pid_tgid;
+
+		link = bpf_program__attach_raw_tracepoint(prog, tp_name);
+		if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
+			goto cleanup;
+
+		/* trigger test run */
+		if (test_case->trigger) {
+			if (!ASSERT_OK(test_case->trigger(test_case), "test_trigger"))
+				goto cleanup;
+		} else {
+			usleep(1);
+		}
+
+		if (data->skip) {
+			test__skip();
+			goto cleanup;
+		}
+
+		if (!ASSERT_FALSE(test_case->fails, "obj_load_should_fail"))
+			goto cleanup;
+
+		equal = memcmp(data->out, test_case->output,
+			       test_case->output_len) == 0;
+		if (CHECK(!equal, "check_result",
+			  "input/output data don't match\n")) {
+			int j;
+
+			for (j = 0; j < test_case->input_len; j++) {
+				printf("input byte #%d: 0x%02hhx\n",
+				       j, test_case->input[j]);
+			}
+			for (j = 0; j < test_case->output_len; j++) {
+				printf("output byte #%d: EXP 0x%02hhx GOT 0x%02hhx\n",
+				       j, test_case->output[j], data->out[j]);
+			}
+			goto cleanup;
+		}
+
+cleanup:
+		if (mmap_data) {
+			CHECK_FAIL(munmap(mmap_data, mmap_sz));
+			mmap_data = NULL;
+		}
+		if (use_btfgen)
+			remove(test_case->btf_src_file);
+		bpf_link__destroy(link);
+		link = NULL;
+		bpf_object__close(obj);
+	}
+}
+
+void test_core_reloc(void)
+{
+	run_core_reloc_tests(false);
+}
+
+void test_core_reloc_btfgen(void)
+{
+	run_core_reloc_tests(true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c b/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c
new file mode 100644
index 000000000000..a18d3680fb16
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc_raw.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Test cases that can't load programs using libbpf and need direct
+ * BPF syscall access
+ */
+
+#include <sys/syscall.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+
+#include "test_progs.h"
+#include "test_btf.h"
+#include "bpf/libbpf_internal.h"
+
+static char log[16 * 1024];
+
+/* Check that verifier rejects BPF program containing relocation
+ * pointing to non-existent BTF type.
+ */
+static void test_bad_local_id(void)
+{
+	struct test_btf {
+		struct btf_header hdr;
+		__u32 types[15];
+		char strings[128];
+	} raw_btf = {
+		.hdr = {
+			.magic = BTF_MAGIC,
+			.version = BTF_VERSION,
+			.hdr_len = sizeof(struct btf_header),
+			.type_off = 0,
+			.type_len = sizeof(raw_btf.types),
+			.str_off = offsetof(struct test_btf, strings) -
+				   offsetof(struct test_btf, types),
+			.str_len = sizeof(raw_btf.strings),
+		},
+		.types = {
+			BTF_PTR_ENC(0),					/* [1] void*  */
+			BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4),	/* [2] int    */
+			BTF_FUNC_PROTO_ENC(2, 1),			/* [3] int (*)(void*) */
+			BTF_FUNC_PROTO_ARG_ENC(8, 1),
+			BTF_FUNC_ENC(8, 3)			/* [4] FUNC 'foo' type_id=2   */
+		},
+		.strings = "\0int\0 0\0foo\0"
+	};
+	__u32 log_level = 1 | 2 | 4;
+	LIBBPF_OPTS(bpf_btf_load_opts, opts,
+		    .log_buf = log,
+		    .log_size = sizeof(log),
+		    .log_level = log_level,
+	);
+	struct bpf_insn insns[] = {
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	struct bpf_func_info funcs[] = {
+		{
+			.insn_off = 0,
+			.type_id = 4,
+		}
+	};
+	struct bpf_core_relo relos[] = {
+		{
+			.insn_off = 0,		/* patch first instruction (r0 = 0) */
+			.type_id = 100500,	/* !!! this type id does not exist */
+			.access_str_off = 6,	/* offset of "0" */
+			.kind = BPF_CORE_TYPE_ID_LOCAL,
+		}
+	};
+	union bpf_attr attr;
+	int saved_errno;
+	int prog_fd = -1;
+	int btf_fd = -1;
+
+	btf_fd = bpf_btf_load(&raw_btf, sizeof(raw_btf), &opts);
+	saved_errno = errno;
+	if (btf_fd < 0 || env.verbosity > VERBOSE_NORMAL) {
+		printf("-------- BTF load log start --------\n");
+		printf("%s", log);
+		printf("-------- BTF load log end ----------\n");
+	}
+	if (btf_fd < 0) {
+		PRINT_FAIL("bpf_btf_load() failed, errno=%d\n", saved_errno);
+		return;
+	}
+
+	log[0] = 0;
+	memset(&attr, 0, sizeof(attr));
+	attr.prog_btf_fd = btf_fd;
+	attr.prog_type = BPF_TRACE_RAW_TP;
+	attr.license = (__u64)"GPL";
+	attr.insns = (__u64)&insns;
+	attr.insn_cnt = sizeof(insns) / sizeof(*insns);
+	attr.log_buf = (__u64)log;
+	attr.log_size = sizeof(log);
+	attr.log_level = log_level;
+	attr.func_info = (__u64)funcs;
+	attr.func_info_cnt = sizeof(funcs) / sizeof(*funcs);
+	attr.func_info_rec_size = sizeof(*funcs);
+	attr.core_relos = (__u64)relos;
+	attr.core_relo_cnt = sizeof(relos) / sizeof(*relos);
+	attr.core_relo_rec_size = sizeof(*relos);
+	prog_fd = sys_bpf_prog_load(&attr, sizeof(attr), 1);
+	saved_errno = errno;
+	if (prog_fd < 0 || env.verbosity > VERBOSE_NORMAL) {
+		printf("-------- program load log start --------\n");
+		printf("%s", log);
+		printf("-------- program load log end ----------\n");
+	}
+	if (prog_fd >= 0) {
+		PRINT_FAIL("sys_bpf_prog_load() expected to fail\n");
+		goto out;
+	}
+	ASSERT_HAS_SUBSTR(log, "relo #0: bad type id 100500", "program load log");
+
+out:
+	close(prog_fd);
+	close(btf_fd);
+}
+
+void test_core_reloc_raw(void)
+{
+	if (test__start_subtest("bad_local_id"))
+		test_bad_local_id();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/core_retro.c b/tools/testing/selftests/bpf/prog_tests/core_retro.c
new file mode 100644
index 000000000000..4a2c256c8db6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/core_retro.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "test_core_retro.skel.h"
+
+void test_core_retro(void)
+{
+	int err, zero = 0, res, my_pid = getpid();
+	struct test_core_retro *skel;
+
+	/* load program */
+	skel = test_core_retro__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto out_close;
+
+	err = bpf_map__update_elem(skel->maps.exp_tgid_map, &zero, sizeof(zero),
+				   &my_pid, sizeof(my_pid), 0);
+	if (!ASSERT_OK(err, "map_update"))
+		goto out_close;
+
+	/* attach probe */
+	err = test_core_retro__attach(skel);
+	if (!ASSERT_OK(err, "attach_kprobe"))
+		goto out_close;
+
+	/* trigger */
+	usleep(1);
+
+	err = bpf_map__lookup_elem(skel->maps.results, &zero, sizeof(zero), &res, sizeof(res), 0);
+	if (!ASSERT_OK(err, "map_lookup"))
+		goto out_close;
+
+	ASSERT_EQ(res, my_pid, "pid_check");
+
+out_close:
+	test_core_retro__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cpu_mask.c b/tools/testing/selftests/bpf/prog_tests/cpu_mask.c
new file mode 100644
index 000000000000..f7c7e25232be
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cpu_mask.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "bpf/libbpf_internal.h"
+
+static int duration = 0;
+
+static void validate_mask(int case_nr, const char *exp, bool *mask, int n)
+{
+	int i;
+
+	for (i = 0; exp[i]; i++) {
+		if (exp[i] == '1') {
+			if (CHECK(i + 1 > n, "mask_short",
+				  "case #%d: mask too short, got n=%d, need at least %d\n",
+				  case_nr, n, i + 1))
+				return;
+			CHECK(!mask[i], "cpu_not_set",
+			      "case #%d: mask differs, expected cpu#%d SET\n",
+			      case_nr, i);
+		} else {
+			CHECK(i < n && mask[i], "cpu_set",
+			      "case #%d: mask differs, expected cpu#%d UNSET\n",
+			      case_nr, i);
+		}
+	}
+	CHECK(i < n, "mask_long",
+	      "case #%d: mask too long, got n=%d, expected at most %d\n",
+	      case_nr, n, i);
+}
+
+static struct {
+	const char *cpu_mask;
+	const char *expect;
+	bool fails;
+} test_cases[] = {
+	{ "0\n", "1", false },
+	{ "0,2\n", "101", false },
+	{ "0-2\n", "111", false },
+	{ "0-2,3-4\n", "11111", false },
+	{ "0", "1", false },
+	{ "0-2", "111", false },
+	{ "0,2", "101", false },
+	{ "0,1-3", "1111", false },
+	{ "0,1,2,3", "1111", false },
+	{ "0,2-3,5", "101101", false },
+	{ "3-3", "0001", false },
+	{ "2-4,6,9-10", "00111010011", false },
+	/* failure cases */
+	{ "", "", true },
+	{ "0-", "", true },
+	{ "0 ", "", true },
+	{ "0_1", "", true },
+	{ "1-0", "", true },
+	{ "-1", "", true },
+};
+
+void test_cpu_mask()
+{
+	int i, err, n;
+	bool *mask;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		mask = NULL;
+		err = parse_cpu_mask_str(test_cases[i].cpu_mask, &mask, &n);
+		if (test_cases[i].fails) {
+			CHECK(!err, "should_fail",
+			      "case #%d: parsing should fail!\n", i + 1);
+		} else {
+			if (CHECK(err, "parse_err",
+				  "case #%d: cpu mask parsing failed: %d\n",
+				  i + 1, err))
+				continue;
+			validate_mask(i + 1, test_cases[i].expect, mask, n);
+		}
+		free(mask);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/cpumask.c b/tools/testing/selftests/bpf/prog_tests/cpumask.c
new file mode 100644
index 000000000000..6c45330a5ca3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/cpumask.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "cpumask_failure.skel.h"
+#include "cpumask_success.skel.h"
+
+static const char * const cpumask_success_testcases[] = {
+	"test_alloc_free_cpumask",
+	"test_set_clear_cpu",
+	"test_setall_clear_cpu",
+	"test_first_firstzero_cpu",
+	"test_firstand_nocpu",
+	"test_test_and_set_clear",
+	"test_and_or_xor",
+	"test_intersects_subset",
+	"test_copy_any_anyand",
+	"test_insert_leave",
+	"test_insert_remove_release",
+	"test_global_mask_rcu",
+	"test_global_mask_array_one_rcu",
+	"test_global_mask_array_rcu",
+	"test_global_mask_array_l2_rcu",
+	"test_global_mask_nested_rcu",
+	"test_global_mask_nested_deep_rcu",
+	"test_global_mask_nested_deep_array_rcu",
+	"test_cpumask_weight",
+	"test_refcount_null_tracking",
+	"test_populate_reject_small_mask",
+	"test_populate_reject_unaligned",
+	"test_populate",
+};
+
+static void verify_success(const char *prog_name)
+{
+	struct cpumask_success *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link = NULL;
+	pid_t child_pid;
+	int status, err;
+
+	skel = cpumask_success__open();
+	if (!ASSERT_OK_PTR(skel, "cpumask_success__open"))
+		return;
+
+	skel->bss->pid = getpid();
+	skel->bss->nr_cpus = libbpf_num_possible_cpus();
+
+	err = cpumask_success__load(skel);
+	if (!ASSERT_OK(err, "cpumask_success__load"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
+		goto cleanup;
+
+	child_pid = fork();
+	if (!ASSERT_GT(child_pid, -1, "child_pid"))
+		goto cleanup;
+	if (child_pid == 0)
+		_exit(0);
+	waitpid(child_pid, &status, 0);
+	ASSERT_OK(skel->bss->err, "post_wait_err");
+
+cleanup:
+	bpf_link__destroy(link);
+	cpumask_success__destroy(skel);
+}
+
+void test_cpumask(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(cpumask_success_testcases); i++) {
+		if (!test__start_subtest(cpumask_success_testcases[i]))
+			continue;
+
+		verify_success(cpumask_success_testcases[i]);
+	}
+
+	RUN_TESTS(cpumask_failure);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c b/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c
new file mode 100644
index 000000000000..42bd07f7218d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/crypto_sanity.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <linux/if_alg.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "crypto_sanity.skel.h"
+#include "crypto_basic.skel.h"
+
+#define NS_TEST "crypto_sanity_ns"
+#define IPV6_IFACE_ADDR "face::1"
+static const unsigned char crypto_key[] = "testtest12345678";
+static const char plain_text[] = "stringtoencrypt0";
+static int opfd = -1, tfmfd = -1;
+static const char algo[] = "ecb(aes)";
+static int init_afalg(void)
+{
+	struct sockaddr_alg sa = {
+		.salg_family = AF_ALG,
+		.salg_type = "skcipher",
+		.salg_name = "ecb(aes)"
+	};
+
+	tfmfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
+	if (tfmfd == -1)
+		return errno;
+	if (bind(tfmfd, (struct sockaddr *)&sa, sizeof(sa)) == -1)
+		return errno;
+	if (setsockopt(tfmfd, SOL_ALG, ALG_SET_KEY, crypto_key, 16) == -1)
+		return errno;
+	opfd = accept(tfmfd, NULL, 0);
+	if (opfd == -1)
+		return errno;
+	return 0;
+}
+
+static void deinit_afalg(void)
+{
+	if (tfmfd != -1)
+		close(tfmfd);
+	if (opfd != -1)
+		close(opfd);
+}
+
+static void do_crypt_afalg(const void *src, void *dst, int size, bool encrypt)
+{
+	struct msghdr msg = {};
+	struct cmsghdr *cmsg;
+	char cbuf[CMSG_SPACE(4)] = {0};
+	struct iovec iov;
+
+	msg.msg_control = cbuf;
+	msg.msg_controllen = sizeof(cbuf);
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_level = SOL_ALG;
+	cmsg->cmsg_type = ALG_SET_OP;
+	cmsg->cmsg_len = CMSG_LEN(4);
+	*(__u32 *)CMSG_DATA(cmsg) = encrypt ? ALG_OP_ENCRYPT : ALG_OP_DECRYPT;
+
+	iov.iov_base = (char *)src;
+	iov.iov_len = size;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	sendmsg(opfd, &msg, 0);
+	read(opfd, dst, size);
+}
+
+void test_crypto_basic(void)
+{
+	RUN_TESTS(crypto_basic);
+}
+
+void test_crypto_sanity(void)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_hook, .attach_point = BPF_TC_EGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach_enc);
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach_dec);
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct nstoken *nstoken = NULL;
+	struct crypto_sanity *skel;
+	char afalg_plain[16] = {0};
+	char afalg_dst[16] = {0};
+	struct sockaddr_in6 addr;
+	int sockfd, err, pfd;
+	socklen_t addrlen;
+	u16 udp_test_port;
+
+	skel = crypto_sanity__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open"))
+		return;
+
+	SYS(fail, "ip netns add %s", NS_TEST);
+	SYS(fail, "ip -net %s -6 addr add %s/128 dev lo nodad", NS_TEST, IPV6_IFACE_ADDR);
+	SYS(fail, "ip -net %s link set dev lo up", NS_TEST);
+
+	nstoken = open_netns(NS_TEST);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto fail;
+
+	err = init_afalg();
+	if (!ASSERT_OK(err, "AF_ALG init fail"))
+		goto fail;
+
+	qdisc_hook.ifindex = if_nametoindex("lo");
+	if (!ASSERT_GT(qdisc_hook.ifindex, 0, "if_nametoindex lo"))
+		goto fail;
+
+	skel->bss->key_len = 16;
+	skel->bss->authsize = 0;
+	udp_test_port = skel->data->udp_test_port;
+	memcpy(skel->bss->key, crypto_key, sizeof(crypto_key));
+	snprintf(skel->bss->algo, 128, "%s", algo);
+	pfd = bpf_program__fd(skel->progs.skb_crypto_setup);
+	if (!ASSERT_GT(pfd, 0, "skb_crypto_setup fd"))
+		goto fail;
+
+	err = bpf_prog_test_run_opts(pfd, &opts);
+	if (!ASSERT_OK(err, "skb_crypto_setup") ||
+	    !ASSERT_OK(opts.retval, "skb_crypto_setup retval"))
+		goto fail;
+
+	if (!ASSERT_OK(skel->bss->status, "skb_crypto_setup status"))
+		goto fail;
+
+	err = bpf_tc_hook_create(&qdisc_hook);
+	if (!ASSERT_OK(err, "create qdisc hook"))
+		goto fail;
+
+	addrlen = sizeof(addr);
+	err = make_sockaddr(AF_INET6, IPV6_IFACE_ADDR, udp_test_port,
+			    (void *)&addr, &addrlen);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto fail;
+
+	tc_attach_enc.prog_fd = bpf_program__fd(skel->progs.encrypt_sanity);
+	err = bpf_tc_attach(&qdisc_hook, &tc_attach_enc);
+	if (!ASSERT_OK(err, "attach encrypt filter"))
+		goto fail;
+
+	sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
+	if (!ASSERT_NEQ(sockfd, -1, "encrypt socket"))
+		goto fail;
+	err = sendto(sockfd, plain_text, sizeof(plain_text), 0, (void *)&addr, addrlen);
+	close(sockfd);
+	if (!ASSERT_EQ(err, sizeof(plain_text), "encrypt send"))
+		goto fail;
+
+	do_crypt_afalg(plain_text, afalg_dst, sizeof(afalg_dst), true);
+
+	if (!ASSERT_OK(skel->bss->status, "encrypt status"))
+		goto fail;
+	if (!ASSERT_STRNEQ(skel->bss->dst, afalg_dst, sizeof(afalg_dst), "encrypt AF_ALG"))
+		goto fail;
+
+	tc_attach_enc.flags = tc_attach_enc.prog_fd = tc_attach_enc.prog_id = 0;
+	err = bpf_tc_detach(&qdisc_hook, &tc_attach_enc);
+	if (!ASSERT_OK(err, "bpf_tc_detach encrypt"))
+		goto fail;
+
+	tc_attach_dec.prog_fd = bpf_program__fd(skel->progs.decrypt_sanity);
+	err = bpf_tc_attach(&qdisc_hook, &tc_attach_dec);
+	if (!ASSERT_OK(err, "attach decrypt filter"))
+		goto fail;
+
+	sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
+	if (!ASSERT_NEQ(sockfd, -1, "decrypt socket"))
+		goto fail;
+	err = sendto(sockfd, afalg_dst, sizeof(afalg_dst), 0, (void *)&addr, addrlen);
+	close(sockfd);
+	if (!ASSERT_EQ(err, sizeof(afalg_dst), "decrypt send"))
+		goto fail;
+
+	do_crypt_afalg(afalg_dst, afalg_plain, sizeof(afalg_plain), false);
+
+	if (!ASSERT_OK(skel->bss->status, "decrypt status"))
+		goto fail;
+	if (!ASSERT_STRNEQ(skel->bss->dst, afalg_plain, sizeof(afalg_plain), "decrypt AF_ALG"))
+		goto fail;
+
+	tc_attach_dec.flags = tc_attach_dec.prog_fd = tc_attach_dec.prog_id = 0;
+	err = bpf_tc_detach(&qdisc_hook, &tc_attach_dec);
+	ASSERT_OK(err, "bpf_tc_detach decrypt");
+
+fail:
+	close_netns(nstoken);
+	deinit_afalg();
+	SYS_NOFAIL("ip netns del " NS_TEST " &> /dev/null");
+	crypto_sanity__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ctx_rewrite.c b/tools/testing/selftests/bpf/prog_tests/ctx_rewrite.c
new file mode 100644
index 000000000000..dd75ccb03770
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ctx_rewrite.c
@@ -0,0 +1,821 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <regex.h>
+#include <test_progs.h>
+
+#include "bpf/btf.h"
+#include "bpf_util.h"
+#include "linux/filter.h"
+#include "linux/kernel.h"
+#include "disasm_helpers.h"
+
+#define MAX_PROG_TEXT_SZ (32 * 1024)
+
+/* The code in this file serves the sole purpose of executing test cases
+ * specified in the test_cases array. Each test case specifies a program
+ * type, context field offset, and disassembly patterns that correspond
+ * to read and write instructions generated by
+ * verifier.c:convert_ctx_access() for accessing that field.
+ *
+ * For each test case, up to three programs are created:
+ * - One that uses BPF_LDX_MEM to read the context field.
+ * - One that uses BPF_STX_MEM to write to the context field.
+ * - One that uses BPF_ST_MEM to write to the context field.
+ *
+ * The disassembly of each program is then compared with the pattern
+ * specified in the test case.
+ */
+struct test_case {
+	char *name;
+	enum bpf_prog_type prog_type;
+	enum bpf_attach_type expected_attach_type;
+	int field_offset;
+	int field_sz;
+	/* Program generated for BPF_ST_MEM uses value 42 by default,
+	 * this field allows to specify custom value.
+	 */
+	struct {
+		bool use;
+		int value;
+	} st_value;
+	/* Pattern for BPF_LDX_MEM(field_sz, dst, ctx, field_offset) */
+	char *read;
+	/* Pattern for BPF_STX_MEM(field_sz, ctx, src, field_offset) and
+	 *             BPF_ST_MEM (field_sz, ctx, src, field_offset)
+	 */
+	char *write;
+	/* Pattern for BPF_ST_MEM(field_sz, ctx, src, field_offset),
+	 * takes priority over `write`.
+	 */
+	char *write_st;
+	/* Pattern for BPF_STX_MEM (field_sz, ctx, src, field_offset),
+	 * takes priority over `write`.
+	 */
+	char *write_stx;
+};
+
+#define N(_prog_type, type, field, name_extra...)	\
+	.name = #_prog_type "." #field name_extra,	\
+	.prog_type = BPF_PROG_TYPE_##_prog_type,	\
+	.field_offset = offsetof(type, field),		\
+	.field_sz = sizeof(typeof(((type *)NULL)->field))
+
+static struct test_case test_cases[] = {
+/* Sign extension on s390 changes the pattern */
+#if defined(__x86_64__) || defined(__aarch64__)
+	{
+		N(SCHED_CLS, struct __sk_buff, tstamp),
+		.read  = "r11 = *(u8 *)($ctx + sk_buff::__mono_tc_offset);"
+			 "if w11 & 0x4 goto pc+1;"
+			 "goto pc+4;"
+			 "if w11 & 0x3 goto pc+1;"
+			 "goto pc+2;"
+			 "$dst = 0;"
+			 "goto pc+1;"
+			 "$dst = *(u64 *)($ctx + sk_buff::tstamp);",
+		.write = "r11 = *(u8 *)($ctx + sk_buff::__mono_tc_offset);"
+			 "if w11 & 0x4 goto pc+1;"
+			 "goto pc+2;"
+			 "w11 &= -4;"
+			 "*(u8 *)($ctx + sk_buff::__mono_tc_offset) = r11;"
+			 "*(u64 *)($ctx + sk_buff::tstamp) = $src;",
+	},
+#endif
+	{
+		N(SCHED_CLS, struct __sk_buff, priority),
+		.read  = "$dst = *(u32 *)($ctx + sk_buff::priority);",
+		.write = "*(u32 *)($ctx + sk_buff::priority) = $src;",
+	},
+	{
+		N(SCHED_CLS, struct __sk_buff, mark),
+		.read  = "$dst = *(u32 *)($ctx + sk_buff::mark);",
+		.write = "*(u32 *)($ctx + sk_buff::mark) = $src;",
+	},
+	{
+		N(SCHED_CLS, struct __sk_buff, cb[0]),
+		.read  = "$dst = *(u32 *)($ctx + $(sk_buff::cb + qdisc_skb_cb::data));",
+		.write = "*(u32 *)($ctx + $(sk_buff::cb + qdisc_skb_cb::data)) = $src;",
+	},
+	{
+		N(SCHED_CLS, struct __sk_buff, tc_classid),
+		.read  = "$dst = *(u16 *)($ctx + $(sk_buff::cb + qdisc_skb_cb::tc_classid));",
+		.write = "*(u16 *)($ctx + $(sk_buff::cb + qdisc_skb_cb::tc_classid)) = $src;",
+	},
+	{
+		N(SCHED_CLS, struct __sk_buff, tc_index),
+		.read  = "$dst = *(u16 *)($ctx + sk_buff::tc_index);",
+		.write = "*(u16 *)($ctx + sk_buff::tc_index) = $src;",
+	},
+	{
+		N(SCHED_CLS, struct __sk_buff, queue_mapping),
+		.read      = "$dst = *(u16 *)($ctx + sk_buff::queue_mapping);",
+		.write_stx = "if $src >= 0xffff goto pc+1;"
+			     "*(u16 *)($ctx + sk_buff::queue_mapping) = $src;",
+		.write_st  = "*(u16 *)($ctx + sk_buff::queue_mapping) = $src;",
+	},
+	{
+		/* This is a corner case in filter.c:bpf_convert_ctx_access() */
+		N(SCHED_CLS, struct __sk_buff, queue_mapping, ".ushrt_max"),
+		.st_value = { true, USHRT_MAX },
+		.write_st = "goto pc+0;",
+	},
+	{
+		N(CGROUP_SOCK, struct bpf_sock, bound_dev_if),
+		.read  = "$dst = *(u32 *)($ctx + sock_common::skc_bound_dev_if);",
+		.write = "*(u32 *)($ctx + sock_common::skc_bound_dev_if) = $src;",
+	},
+	{
+		N(CGROUP_SOCK, struct bpf_sock, mark),
+		.read  = "$dst = *(u32 *)($ctx + sock::sk_mark);",
+		.write = "*(u32 *)($ctx + sock::sk_mark) = $src;",
+	},
+	{
+		N(CGROUP_SOCK, struct bpf_sock, priority),
+		.read  = "$dst = *(u32 *)($ctx + sock::sk_priority);",
+		.write = "*(u32 *)($ctx + sock::sk_priority) = $src;",
+	},
+	{
+		N(SOCK_OPS, struct bpf_sock_ops, replylong[0]),
+		.read  = "$dst = *(u32 *)($ctx + bpf_sock_ops_kern::replylong);",
+		.write = "*(u32 *)($ctx + bpf_sock_ops_kern::replylong) = $src;",
+	},
+	{
+		N(CGROUP_SYSCTL, struct bpf_sysctl, file_pos),
+#if __BYTE_ORDER == __LITTLE_ENDIAN
+		.read  = "$dst = *(u64 *)($ctx + bpf_sysctl_kern::ppos);"
+			 "$dst = *(u32 *)($dst +0);",
+		.write = "*(u64 *)($ctx + bpf_sysctl_kern::tmp_reg) = r9;"
+			 "r9 = *(u64 *)($ctx + bpf_sysctl_kern::ppos);"
+			 "*(u32 *)(r9 +0) = $src;"
+			 "r9 = *(u64 *)($ctx + bpf_sysctl_kern::tmp_reg);",
+#else
+		.read  = "$dst = *(u64 *)($ctx + bpf_sysctl_kern::ppos);"
+			 "$dst = *(u32 *)($dst +4);",
+		.write = "*(u64 *)($ctx + bpf_sysctl_kern::tmp_reg) = r9;"
+			 "r9 = *(u64 *)($ctx + bpf_sysctl_kern::ppos);"
+			 "*(u32 *)(r9 +4) = $src;"
+			 "r9 = *(u64 *)($ctx + bpf_sysctl_kern::tmp_reg);",
+#endif
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, sk),
+		.read  = "$dst = *(u64 *)($ctx + bpf_sockopt_kern::sk);",
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, level),
+		.read  = "$dst = *(u32 *)($ctx + bpf_sockopt_kern::level);",
+		.write = "*(u32 *)($ctx + bpf_sockopt_kern::level) = $src;",
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, optname),
+		.read  = "$dst = *(u32 *)($ctx + bpf_sockopt_kern::optname);",
+		.write = "*(u32 *)($ctx + bpf_sockopt_kern::optname) = $src;",
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, optlen),
+		.read  = "$dst = *(u32 *)($ctx + bpf_sockopt_kern::optlen);",
+		.write = "*(u32 *)($ctx + bpf_sockopt_kern::optlen) = $src;",
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, retval),
+		.read  = "$dst = *(u64 *)($ctx + bpf_sockopt_kern::current_task);"
+			 "$dst = *(u64 *)($dst + task_struct::bpf_ctx);"
+			 "$dst = *(u32 *)($dst + bpf_cg_run_ctx::retval);",
+		.write = "*(u64 *)($ctx + bpf_sockopt_kern::tmp_reg) = r9;"
+			 "r9 = *(u64 *)($ctx + bpf_sockopt_kern::current_task);"
+			 "r9 = *(u64 *)(r9 + task_struct::bpf_ctx);"
+			 "*(u32 *)(r9 + bpf_cg_run_ctx::retval) = $src;"
+			 "r9 = *(u64 *)($ctx + bpf_sockopt_kern::tmp_reg);",
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, optval),
+		.read  = "$dst = *(u64 *)($ctx + bpf_sockopt_kern::optval);",
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+	},
+	{
+		N(CGROUP_SOCKOPT, struct bpf_sockopt, optval_end),
+		.read  = "$dst = *(u64 *)($ctx + bpf_sockopt_kern::optval_end);",
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+	},
+};
+
+#undef N
+
+static regex_t *ident_regex;
+static regex_t *field_regex;
+
+static char *skip_space(char *str)
+{
+	while (*str && isspace(*str))
+		++str;
+	return str;
+}
+
+static char *skip_space_and_semi(char *str)
+{
+	while (*str && (isspace(*str) || *str == ';'))
+		++str;
+	return str;
+}
+
+static char *match_str(char *str, char *prefix)
+{
+	while (*str && *prefix && *str == *prefix) {
+		++str;
+		++prefix;
+	}
+	if (*prefix)
+		return NULL;
+	return str;
+}
+
+static char *match_number(char *str, int num)
+{
+	char *next;
+	int snum = strtol(str, &next, 10);
+
+	if (next - str == 0 || num != snum)
+		return NULL;
+
+	return next;
+}
+
+static int find_field_offset_aux(struct btf *btf, int btf_id, char *field_name, int off)
+{
+	const struct btf_type *type = btf__type_by_id(btf, btf_id);
+	const struct btf_member *m;
+	__u16 mnum;
+	int i;
+
+	if (!type) {
+		PRINT_FAIL("Can't find btf_type for id %d\n", btf_id);
+		return -1;
+	}
+
+	if (!btf_is_struct(type) && !btf_is_union(type)) {
+		PRINT_FAIL("BTF id %d is not struct or union\n", btf_id);
+		return -1;
+	}
+
+	m = btf_members(type);
+	mnum = btf_vlen(type);
+
+	for (i = 0; i < mnum; ++i, ++m) {
+		const char *mname = btf__name_by_offset(btf, m->name_off);
+
+		if (strcmp(mname, "") == 0) {
+			int msize = find_field_offset_aux(btf, m->type, field_name,
+							  off + m->offset);
+			if (msize >= 0)
+				return msize;
+		}
+
+		if (strcmp(mname, field_name))
+			continue;
+
+		return (off + m->offset) / 8;
+	}
+
+	return -1;
+}
+
+static int find_field_offset(struct btf *btf, char *pattern, regmatch_t *matches)
+{
+	int type_sz  = matches[1].rm_eo - matches[1].rm_so;
+	int field_sz = matches[2].rm_eo - matches[2].rm_so;
+	char *type   = pattern + matches[1].rm_so;
+	char *field  = pattern + matches[2].rm_so;
+	char field_str[128] = {};
+	char type_str[128] = {};
+	int btf_id, field_offset;
+
+	if (type_sz >= sizeof(type_str)) {
+		PRINT_FAIL("Malformed pattern: type ident is too long: %d\n", type_sz);
+		return -1;
+	}
+
+	if (field_sz >= sizeof(field_str)) {
+		PRINT_FAIL("Malformed pattern: field ident is too long: %d\n", field_sz);
+		return -1;
+	}
+
+	strncpy(type_str, type, type_sz);
+	strncpy(field_str, field, field_sz);
+	btf_id = btf__find_by_name(btf, type_str);
+	if (btf_id < 0) {
+		PRINT_FAIL("No BTF info for type %s\n", type_str);
+		return -1;
+	}
+
+	field_offset = find_field_offset_aux(btf, btf_id, field_str, 0);
+	if (field_offset < 0) {
+		PRINT_FAIL("No BTF info for field %s::%s\n", type_str, field_str);
+		return -1;
+	}
+
+	return field_offset;
+}
+
+static regex_t *compile_regex(char *pat)
+{
+	regex_t *re;
+	int err;
+
+	re = malloc(sizeof(regex_t));
+	if (!re) {
+		PRINT_FAIL("Can't alloc regex\n");
+		return NULL;
+	}
+
+	err = regcomp(re, pat, REG_EXTENDED);
+	if (err) {
+		char errbuf[512];
+
+		regerror(err, re, errbuf, sizeof(errbuf));
+		PRINT_FAIL("Can't compile regex: %s\n", errbuf);
+		free(re);
+		return NULL;
+	}
+
+	return re;
+}
+
+static void free_regex(regex_t *re)
+{
+	if (!re)
+		return;
+
+	regfree(re);
+	free(re);
+}
+
+static u32 max_line_len(char *str)
+{
+	u32 max_line = 0;
+	char *next = str;
+
+	while (next) {
+		next = strchr(str, '\n');
+		if (next) {
+			max_line = max_t(u32, max_line, (next - str));
+			str = next + 1;
+		} else {
+			max_line = max_t(u32, max_line, strlen(str));
+		}
+	}
+
+	return min(max_line, 60u);
+}
+
+/* Print strings `pattern_origin` and `text_origin` side by side,
+ * assume `pattern_pos` and `text_pos` designate location within
+ * corresponding origin string where match diverges.
+ * The output should look like:
+ *
+ *   Can't match disassembly(left) with pattern(right):
+ *   r2 = *(u64 *)(r1 +0)  ;  $dst = *(u64 *)($ctx + bpf_sockopt_kern::sk1)
+ *                     ^                             ^
+ *   r0 = 0                ;
+ *   exit                  ;
+ */
+static void print_match_error(FILE *out,
+			      char *pattern_origin, char *text_origin,
+			      char *pattern_pos, char *text_pos)
+{
+	char *pattern = pattern_origin;
+	char *text = text_origin;
+	int middle = max_line_len(text) + 2;
+
+	fprintf(out, "Can't match disassembly(left) with pattern(right):\n");
+	while (*pattern || *text) {
+		int column = 0;
+		int mark1 = -1;
+		int mark2 = -1;
+
+		/* Print one line from text */
+		while (*text && *text != '\n') {
+			if (text == text_pos)
+				mark1 = column;
+			fputc(*text, out);
+			++text;
+			++column;
+		}
+		if (text == text_pos)
+			mark1 = column;
+
+		/* Pad to the middle */
+		while (column < middle) {
+			fputc(' ', out);
+			++column;
+		}
+		fputs(";  ", out);
+		column += 3;
+
+		/* Print one line from pattern, pattern lines are terminated by ';' */
+		while (*pattern && *pattern != ';') {
+			if (pattern == pattern_pos)
+				mark2 = column;
+			fputc(*pattern, out);
+			++pattern;
+			++column;
+		}
+		if (pattern == pattern_pos)
+			mark2 = column;
+
+		fputc('\n', out);
+		if (*pattern)
+			++pattern;
+		if (*text)
+			++text;
+
+		/* If pattern and text diverge at this line, print an
+		 * additional line with '^' marks, highlighting
+		 * positions where match fails.
+		 */
+		if (mark1 > 0 || mark2 > 0) {
+			for (column = 0; column <= max(mark1, mark2); ++column) {
+				if (column == mark1 || column == mark2)
+					fputc('^', out);
+				else
+					fputc(' ', out);
+			}
+			fputc('\n', out);
+		}
+	}
+}
+
+/* Test if `text` matches `pattern`. Pattern consists of the following elements:
+ *
+ * - Field offset references:
+ *
+ *     <type>::<field>
+ *
+ *   When such reference is encountered BTF is used to compute numerical
+ *   value for the offset of <field> in <type>. The `text` is expected to
+ *   contain matching numerical value.
+ *
+ * - Field groups:
+ *
+ *     $(<type>::<field> [+ <type>::<field>]*)
+ *
+ *   Allows to specify an offset that is a sum of multiple field offsets.
+ *   The `text` is expected to contain matching numerical value.
+ *
+ * - Variable references, e.g. `$src`, `$dst`, `$ctx`.
+ *   These are substitutions specified in `reg_map` array.
+ *   If a substring of pattern is equal to `reg_map[i][0]` the `text` is
+ *   expected to contain `reg_map[i][1]` in the matching position.
+ *
+ * - Whitespace is ignored, ';' counts as whitespace for `pattern`.
+ *
+ * - Any other characters, `pattern` and `text` should match one-to-one.
+ *
+ * Example of a pattern:
+ *
+ *                    __________ fields group ________________
+ *                   '                                        '
+ *   *(u16 *)($ctx + $(sk_buff::cb + qdisc_skb_cb::tc_classid)) = $src;
+ *            ^^^^                   '______________________'
+ *     variable reference             field offset reference
+ */
+static bool match_pattern(struct btf *btf, char *pattern, char *text, char *reg_map[][2])
+{
+	char *pattern_origin = pattern;
+	char *text_origin = text;
+	regmatch_t matches[3];
+
+_continue:
+	while (*pattern) {
+		if (!*text)
+			goto err;
+
+		/* Skip whitespace */
+		if (isspace(*pattern) || *pattern == ';') {
+			if (!isspace(*text) && text != text_origin && isalnum(text[-1]))
+				goto err;
+			pattern = skip_space_and_semi(pattern);
+			text = skip_space(text);
+			continue;
+		}
+
+		/* Check for variable references */
+		for (int i = 0; reg_map[i][0]; ++i) {
+			char *pattern_next, *text_next;
+
+			pattern_next = match_str(pattern, reg_map[i][0]);
+			if (!pattern_next)
+				continue;
+
+			text_next = match_str(text, reg_map[i][1]);
+			if (!text_next)
+				goto err;
+
+			pattern = pattern_next;
+			text = text_next;
+			goto _continue;
+		}
+
+		/* Match field group:
+		 *   $(sk_buff::cb + qdisc_skb_cb::tc_classid)
+		 */
+		if (strncmp(pattern, "$(", 2) == 0) {
+			char *group_start = pattern, *text_next;
+			int acc_offset = 0;
+
+			pattern += 2;
+
+			for (;;) {
+				int field_offset;
+
+				pattern = skip_space(pattern);
+				if (!*pattern) {
+					PRINT_FAIL("Unexpected end of pattern\n");
+					goto err;
+				}
+
+				if (*pattern == ')') {
+					++pattern;
+					break;
+				}
+
+				if (*pattern == '+') {
+					++pattern;
+					continue;
+				}
+
+				printf("pattern: %s\n", pattern);
+				if (regexec(field_regex, pattern, 3, matches, 0) != 0) {
+					PRINT_FAIL("Field reference expected\n");
+					goto err;
+				}
+
+				field_offset = find_field_offset(btf, pattern, matches);
+				if (field_offset < 0)
+					goto err;
+
+				pattern += matches[0].rm_eo;
+				acc_offset += field_offset;
+			}
+
+			text_next = match_number(text, acc_offset);
+			if (!text_next) {
+				PRINT_FAIL("No match for group offset %.*s (%d)\n",
+					   (int)(pattern - group_start),
+					   group_start,
+					   acc_offset);
+				goto err;
+			}
+			text = text_next;
+		}
+
+		/* Match field reference:
+		 *   sk_buff::cb
+		 */
+		if (regexec(field_regex, pattern, 3, matches, 0) == 0) {
+			int field_offset;
+			char *text_next;
+
+			field_offset = find_field_offset(btf, pattern, matches);
+			if (field_offset < 0)
+				goto err;
+
+			text_next = match_number(text, field_offset);
+			if (!text_next) {
+				PRINT_FAIL("No match for field offset %.*s (%d)\n",
+					   (int)matches[0].rm_eo, pattern, field_offset);
+				goto err;
+			}
+
+			pattern += matches[0].rm_eo;
+			text = text_next;
+			continue;
+		}
+
+		/* If pattern points to identifier not followed by '::'
+		 * skip the identifier to avoid n^2 application of the
+		 * field reference rule.
+		 */
+		if (regexec(ident_regex, pattern, 1, matches, 0) == 0) {
+			if (strncmp(pattern, text, matches[0].rm_eo) != 0)
+				goto err;
+
+			pattern += matches[0].rm_eo;
+			text += matches[0].rm_eo;
+			continue;
+		}
+
+		/* Match literally */
+		if (*pattern != *text)
+			goto err;
+
+		++pattern;
+		++text;
+	}
+
+	return true;
+
+err:
+	test__fail();
+	print_match_error(stdout, pattern_origin, text_origin, pattern, text);
+	return false;
+}
+
+struct prog_info {
+	char *prog_kind;
+	enum bpf_prog_type prog_type;
+	enum bpf_attach_type expected_attach_type;
+	struct bpf_insn *prog;
+	u32 prog_len;
+};
+
+static void match_program(struct btf *btf,
+			  struct prog_info *pinfo,
+			  char *pattern,
+			  char *reg_map[][2],
+			  bool skip_first_insn)
+{
+	struct bpf_insn *buf = NULL, *insn, *insn_end;
+	int err = 0, prog_fd = 0;
+	FILE *prog_out = NULL;
+	char insn_buf[64];
+	char *text = NULL;
+	__u32 cnt = 0;
+
+	text = calloc(MAX_PROG_TEXT_SZ, 1);
+	if (!text) {
+		PRINT_FAIL("Can't allocate %d bytes\n", MAX_PROG_TEXT_SZ);
+		goto out;
+	}
+
+	// TODO: log level
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	opts.log_buf = text;
+	opts.log_size = MAX_PROG_TEXT_SZ;
+	opts.log_level = 1 | 2 | 4;
+	opts.expected_attach_type = pinfo->expected_attach_type;
+
+	prog_fd = bpf_prog_load(pinfo->prog_type, NULL, "GPL",
+				pinfo->prog, pinfo->prog_len, &opts);
+	if (prog_fd < 0) {
+		PRINT_FAIL("Can't load program, errno %d (%s), verifier log:\n%s\n",
+			   errno, strerror(errno), text);
+		goto out;
+	}
+
+	memset(text, 0, MAX_PROG_TEXT_SZ);
+
+	err = get_xlated_program(prog_fd, &buf, &cnt);
+	if (err) {
+		PRINT_FAIL("Can't load back BPF program\n");
+		goto out;
+	}
+
+	prog_out = fmemopen(text, MAX_PROG_TEXT_SZ - 1, "w");
+	if (!prog_out) {
+		PRINT_FAIL("Can't open memory stream\n");
+		goto out;
+	}
+	insn_end = buf + cnt;
+	insn = buf + (skip_first_insn ? 1 : 0);
+	while (insn < insn_end) {
+		insn = disasm_insn(insn, insn_buf, sizeof(insn_buf));
+		fprintf(prog_out, "%s\n", insn_buf);
+	}
+	fclose(prog_out);
+
+	ASSERT_TRUE(match_pattern(btf, pattern, text, reg_map),
+		    pinfo->prog_kind);
+
+out:
+	if (prog_fd)
+		close(prog_fd);
+	free(buf);
+	free(text);
+}
+
+static void run_one_testcase(struct btf *btf, struct test_case *test)
+{
+	struct prog_info pinfo = {};
+	int bpf_sz;
+
+	if (!test__start_subtest(test->name))
+		return;
+
+	switch (test->field_sz) {
+	case 8:
+		bpf_sz = BPF_DW;
+		break;
+	case 4:
+		bpf_sz = BPF_W;
+		break;
+	case 2:
+		bpf_sz = BPF_H;
+		break;
+	case 1:
+		bpf_sz = BPF_B;
+		break;
+	default:
+		PRINT_FAIL("Unexpected field size: %d, want 8,4,2 or 1\n", test->field_sz);
+		return;
+	}
+
+	pinfo.prog_type = test->prog_type;
+	pinfo.expected_attach_type = test->expected_attach_type;
+
+	if (test->read) {
+		struct bpf_insn ldx_prog[] = {
+			BPF_LDX_MEM(bpf_sz, BPF_REG_2, BPF_REG_1, test->field_offset),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		};
+		char *reg_map[][2] = {
+			{ "$ctx", "r1" },
+			{ "$dst", "r2" },
+			{}
+		};
+
+		pinfo.prog_kind = "LDX";
+		pinfo.prog = ldx_prog;
+		pinfo.prog_len = ARRAY_SIZE(ldx_prog);
+		match_program(btf, &pinfo, test->read, reg_map, false);
+	}
+
+	if (test->write || test->write_st || test->write_stx) {
+		struct bpf_insn stx_prog[] = {
+			BPF_MOV64_IMM(BPF_REG_2, 0),
+			BPF_STX_MEM(bpf_sz, BPF_REG_1, BPF_REG_2, test->field_offset),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		};
+		char *stx_reg_map[][2] = {
+			{ "$ctx", "r1" },
+			{ "$src", "r2" },
+			{}
+		};
+		struct bpf_insn st_prog[] = {
+			BPF_ST_MEM(bpf_sz, BPF_REG_1, test->field_offset,
+				   test->st_value.use ? test->st_value.value : 42),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		};
+		char *st_reg_map[][2] = {
+			{ "$ctx", "r1" },
+			{ "$src", "42" },
+			{}
+		};
+
+		if (test->write || test->write_stx) {
+			char *pattern = test->write_stx ? test->write_stx : test->write;
+
+			pinfo.prog_kind = "STX";
+			pinfo.prog = stx_prog;
+			pinfo.prog_len = ARRAY_SIZE(stx_prog);
+			match_program(btf, &pinfo, pattern, stx_reg_map, true);
+		}
+
+		if (test->write || test->write_st) {
+			char *pattern = test->write_st ? test->write_st : test->write;
+
+			pinfo.prog_kind = "ST";
+			pinfo.prog = st_prog;
+			pinfo.prog_len = ARRAY_SIZE(st_prog);
+			match_program(btf, &pinfo, pattern, st_reg_map, false);
+		}
+	}
+
+	test__end_subtest();
+}
+
+void test_ctx_rewrite(void)
+{
+	struct btf *btf;
+	int i;
+
+	field_regex = compile_regex("^([[:alpha:]_][[:alnum:]_]+)::([[:alpha:]_][[:alnum:]_]+)");
+	ident_regex = compile_regex("^[[:alpha:]_][[:alnum:]_]+");
+	if (!field_regex || !ident_regex)
+		return;
+
+	btf = btf__load_vmlinux_btf();
+	if (!btf) {
+		PRINT_FAIL("Can't load vmlinux BTF, errno %d (%s)\n", errno, strerror(errno));
+		goto out;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); ++i)
+		run_one_testcase(btf, &test_cases[i]);
+
+out:
+	btf__free(btf);
+	free_regex(field_regex);
+	free_regex(ident_regex);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/custom_sec_handlers.c b/tools/testing/selftests/bpf/prog_tests/custom_sec_handlers.c
new file mode 100644
index 000000000000..b2dfc5954aea
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/custom_sec_handlers.c
@@ -0,0 +1,176 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include <test_progs.h>
+#include "test_custom_sec_handlers.skel.h"
+
+#define COOKIE_ABC1 1
+#define COOKIE_ABC2 2
+#define COOKIE_CUSTOM 3
+#define COOKIE_FALLBACK 4
+#define COOKIE_KPROBE 5
+
+static int custom_setup_prog(struct bpf_program *prog, long cookie)
+{
+	if (cookie == COOKIE_ABC1)
+		bpf_program__set_autoload(prog, false);
+
+	return 0;
+}
+
+static int custom_prepare_load_prog(struct bpf_program *prog,
+				    struct bpf_prog_load_opts *opts, long cookie)
+{
+	if (cookie == COOKIE_FALLBACK)
+		opts->prog_flags |= BPF_F_SLEEPABLE;
+	else if (cookie == COOKIE_ABC1)
+		ASSERT_FALSE(true, "unexpected preload for abc");
+
+	return 0;
+}
+
+static int custom_attach_prog(const struct bpf_program *prog, long cookie,
+			      struct bpf_link **link)
+{
+	switch (cookie) {
+	case COOKIE_ABC2:
+		*link = bpf_program__attach_raw_tracepoint(prog, "sys_enter");
+		return libbpf_get_error(*link);
+	case COOKIE_CUSTOM:
+		*link = bpf_program__attach_tracepoint(prog, "syscalls", "sys_enter_nanosleep");
+		return libbpf_get_error(*link);
+	case COOKIE_KPROBE:
+	case COOKIE_FALLBACK:
+		/* no auto-attach for SEC("xyz") and SEC("kprobe") */
+		*link = NULL;
+		return 0;
+	default:
+		ASSERT_FALSE(true, "unexpected cookie");
+		return -EINVAL;
+	}
+}
+
+static int abc1_id;
+static int abc2_id;
+static int custom_id;
+static int fallback_id;
+static int kprobe_id;
+
+__attribute__((constructor))
+static void register_sec_handlers(void)
+{
+	LIBBPF_OPTS(libbpf_prog_handler_opts, abc1_opts,
+		.cookie = COOKIE_ABC1,
+		.prog_setup_fn = custom_setup_prog,
+		.prog_prepare_load_fn = custom_prepare_load_prog,
+		.prog_attach_fn = NULL,
+	);
+	LIBBPF_OPTS(libbpf_prog_handler_opts, abc2_opts,
+		.cookie = COOKIE_ABC2,
+		.prog_setup_fn = custom_setup_prog,
+		.prog_prepare_load_fn = custom_prepare_load_prog,
+		.prog_attach_fn = custom_attach_prog,
+	);
+	LIBBPF_OPTS(libbpf_prog_handler_opts, custom_opts,
+		.cookie = COOKIE_CUSTOM,
+		.prog_setup_fn = NULL,
+		.prog_prepare_load_fn = NULL,
+		.prog_attach_fn = custom_attach_prog,
+	);
+
+	abc1_id = libbpf_register_prog_handler("abc", BPF_PROG_TYPE_RAW_TRACEPOINT, 0, &abc1_opts);
+	abc2_id = libbpf_register_prog_handler("abc/", BPF_PROG_TYPE_RAW_TRACEPOINT, 0, &abc2_opts);
+	custom_id = libbpf_register_prog_handler("custom+", BPF_PROG_TYPE_TRACEPOINT, 0, &custom_opts);
+}
+
+__attribute__((destructor))
+static void unregister_sec_handlers(void)
+{
+	libbpf_unregister_prog_handler(abc1_id);
+	libbpf_unregister_prog_handler(abc2_id);
+	libbpf_unregister_prog_handler(custom_id);
+}
+
+void test_custom_sec_handlers(void)
+{
+	LIBBPF_OPTS(libbpf_prog_handler_opts, opts,
+		.prog_setup_fn = custom_setup_prog,
+		.prog_prepare_load_fn = custom_prepare_load_prog,
+		.prog_attach_fn = custom_attach_prog,
+	);
+	struct test_custom_sec_handlers* skel;
+	int err;
+
+	ASSERT_GT(abc1_id, 0, "abc1_id");
+	ASSERT_GT(abc2_id, 0, "abc2_id");
+	ASSERT_GT(custom_id, 0, "custom_id");
+
+	/* override libbpf's handle of SEC("kprobe/...") but also allow pure
+	 * SEC("kprobe") due to "kprobe+" specifier. Register it as
+	 * TRACEPOINT, just for fun.
+	 */
+	opts.cookie = COOKIE_KPROBE;
+	kprobe_id = libbpf_register_prog_handler("kprobe+", BPF_PROG_TYPE_TRACEPOINT, 0, &opts);
+	/* fallback treats everything as BPF_PROG_TYPE_SYSCALL program to test
+	 * setting custom BPF_F_SLEEPABLE bit in preload handler
+	 */
+	opts.cookie = COOKIE_FALLBACK;
+	fallback_id = libbpf_register_prog_handler(NULL, BPF_PROG_TYPE_SYSCALL, 0, &opts);
+
+	if (!ASSERT_GT(fallback_id, 0, "fallback_id") /* || !ASSERT_GT(kprobe_id, 0, "kprobe_id")*/) {
+		if (fallback_id > 0)
+			libbpf_unregister_prog_handler(fallback_id);
+		if (kprobe_id > 0)
+			libbpf_unregister_prog_handler(kprobe_id);
+		return;
+	}
+
+	/* open skeleton and validate assumptions */
+	skel = test_custom_sec_handlers__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__type(skel->progs.abc1), BPF_PROG_TYPE_RAW_TRACEPOINT, "abc1_type");
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.abc1), "abc1_autoload");
+
+	ASSERT_EQ(bpf_program__type(skel->progs.abc2), BPF_PROG_TYPE_RAW_TRACEPOINT, "abc2_type");
+	ASSERT_EQ(bpf_program__type(skel->progs.custom1), BPF_PROG_TYPE_TRACEPOINT, "custom1_type");
+	ASSERT_EQ(bpf_program__type(skel->progs.custom2), BPF_PROG_TYPE_TRACEPOINT, "custom2_type");
+	ASSERT_EQ(bpf_program__type(skel->progs.kprobe1), BPF_PROG_TYPE_TRACEPOINT, "kprobe1_type");
+	ASSERT_EQ(bpf_program__type(skel->progs.xyz), BPF_PROG_TYPE_SYSCALL, "xyz_type");
+
+	skel->rodata->my_pid = getpid();
+
+	/* now attempt to load everything */
+	err = test_custom_sec_handlers__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	/* now try to auto-attach everything */
+	err = test_custom_sec_handlers__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	skel->links.xyz = bpf_program__attach(skel->progs.kprobe1);
+	ASSERT_EQ(errno, EOPNOTSUPP, "xyz_attach_err");
+	ASSERT_ERR_PTR(skel->links.xyz, "xyz_attach");
+
+	/* trigger programs */
+	usleep(1);
+
+	/* SEC("abc") is set to not auto-loaded */
+	ASSERT_FALSE(skel->bss->abc1_called, "abc1_called");
+	ASSERT_TRUE(skel->bss->abc2_called, "abc2_called");
+	ASSERT_TRUE(skel->bss->custom1_called, "custom1_called");
+	ASSERT_TRUE(skel->bss->custom2_called, "custom2_called");
+	/* SEC("kprobe") shouldn't be auto-attached */
+	ASSERT_FALSE(skel->bss->kprobe1_called, "kprobe1_called");
+	/* SEC("xyz") shouldn't be auto-attached */
+	ASSERT_FALSE(skel->bss->xyz_called, "xyz_called");
+
+cleanup:
+	test_custom_sec_handlers__destroy(skel);
+
+	ASSERT_OK(libbpf_unregister_prog_handler(fallback_id), "unregister_fallback");
+	ASSERT_OK(libbpf_unregister_prog_handler(kprobe_id), "unregister_kprobe");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/d_path.c b/tools/testing/selftests/bpf/prog_tests/d_path.c
new file mode 100644
index 000000000000..ccc768592e66
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/d_path.c
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <sys/stat.h>
+#include <linux/sched.h>
+#include <sys/syscall.h>
+
+#define MAX_PATH_LEN		128
+#define MAX_FILES		7
+
+#include "test_d_path.skel.h"
+#include "test_d_path_check_rdonly_mem.skel.h"
+#include "test_d_path_check_types.skel.h"
+
+/* sys_close_range is not around for long time, so let's
+ * make sure we can call it on systems with older glibc
+ */
+#ifndef __NR_close_range
+#ifdef __alpha__
+#define __NR_close_range 546
+#else
+#define __NR_close_range 436
+#endif
+#endif
+
+static int duration;
+
+static struct {
+	__u32 cnt;
+	char paths[MAX_FILES][MAX_PATH_LEN];
+} src;
+
+static int set_pathname(int fd, pid_t pid)
+{
+	char buf[MAX_PATH_LEN];
+
+	snprintf(buf, MAX_PATH_LEN, "/proc/%d/fd/%d", pid, fd);
+	return readlink(buf, src.paths[src.cnt++], MAX_PATH_LEN);
+}
+
+static int trigger_fstat_events(pid_t pid)
+{
+	int sockfd = -1, procfd = -1, devfd = -1;
+	int localfd = -1, indicatorfd = -1;
+	int pipefd[2] = { -1, -1 };
+	struct stat fileStat;
+	int ret = -1;
+
+	/* unmountable pseudo-filesystems */
+	if (CHECK(pipe(pipefd) < 0, "trigger", "pipe failed\n"))
+		return ret;
+	/* unmountable pseudo-filesystems */
+	sockfd = socket(AF_INET, SOCK_STREAM, 0);
+	if (CHECK(sockfd < 0, "trigger", "socket failed\n"))
+		goto out_close;
+	/* mountable pseudo-filesystems */
+	procfd = open("/proc/self/comm", O_RDONLY);
+	if (CHECK(procfd < 0, "trigger", "open /proc/self/comm failed\n"))
+		goto out_close;
+	devfd = open("/dev/urandom", O_RDONLY);
+	if (CHECK(devfd < 0, "trigger", "open /dev/urandom failed\n"))
+		goto out_close;
+	localfd = open("/tmp/d_path_loadgen.txt", O_CREAT | O_RDONLY, 0644);
+	if (CHECK(localfd < 0, "trigger", "open /tmp/d_path_loadgen.txt failed\n"))
+		goto out_close;
+	/* bpf_d_path will return path with (deleted) */
+	remove("/tmp/d_path_loadgen.txt");
+	indicatorfd = open("/tmp/", O_PATH);
+	if (CHECK(indicatorfd < 0, "trigger", "open /tmp/ failed\n"))
+		goto out_close;
+
+	ret = set_pathname(pipefd[0], pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for pipe[0]\n"))
+		goto out_close;
+	ret = set_pathname(pipefd[1], pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for pipe[1]\n"))
+		goto out_close;
+	ret = set_pathname(sockfd, pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for socket\n"))
+		goto out_close;
+	ret = set_pathname(procfd, pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for proc\n"))
+		goto out_close;
+	ret = set_pathname(devfd, pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for dev\n"))
+		goto out_close;
+	ret = set_pathname(localfd, pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for file\n"))
+		goto out_close;
+	ret = set_pathname(indicatorfd, pid);
+	if (CHECK(ret < 0, "trigger", "set_pathname failed for dir\n"))
+		goto out_close;
+
+	/* triggers vfs_getattr */
+	fstat(pipefd[0], &fileStat);
+	fstat(pipefd[1], &fileStat);
+	fstat(sockfd, &fileStat);
+	fstat(procfd, &fileStat);
+	fstat(devfd, &fileStat);
+	fstat(localfd, &fileStat);
+	fstat(indicatorfd, &fileStat);
+
+out_close:
+	/* sys_close no longer triggers filp_close, but we can
+	 * call sys_close_range instead which still does
+	 */
+#define close(fd) syscall(__NR_close_range, fd, fd, 0)
+
+	close(pipefd[0]);
+	close(pipefd[1]);
+	close(sockfd);
+	close(procfd);
+	close(devfd);
+	close(localfd);
+	close(indicatorfd);
+
+#undef close
+	return ret;
+}
+
+static void test_d_path_basic(void)
+{
+	struct test_d_path__bss *bss;
+	struct test_d_path *skel;
+	int err;
+
+	skel = test_d_path__open_and_load();
+	if (CHECK(!skel, "setup", "d_path skeleton failed\n"))
+		goto cleanup;
+
+	err = test_d_path__attach(skel);
+	if (CHECK(err, "setup", "attach failed: %d\n", err))
+		goto cleanup;
+
+	bss = skel->bss;
+	bss->my_pid = getpid();
+
+	err = trigger_fstat_events(bss->my_pid);
+	if (err < 0)
+		goto cleanup;
+
+	if (CHECK(!bss->called_stat,
+		  "stat",
+		  "trampoline for security_inode_getattr was not called\n"))
+		goto cleanup;
+
+	if (CHECK(!bss->called_close,
+		  "close",
+		  "trampoline for filp_close was not called\n"))
+		goto cleanup;
+
+	for (int i = 0; i < MAX_FILES; i++) {
+		CHECK(strncmp(src.paths[i], bss->paths_stat[i], MAX_PATH_LEN),
+		      "check",
+		      "failed to get stat path[%d]: %s vs %s\n",
+		      i, src.paths[i], bss->paths_stat[i]);
+		CHECK(strncmp(src.paths[i], bss->paths_close[i], MAX_PATH_LEN),
+		      "check",
+		      "failed to get close path[%d]: %s vs %s\n",
+		      i, src.paths[i], bss->paths_close[i]);
+		/* The d_path helper returns size plus NUL char, hence + 1 */
+		CHECK(bss->rets_stat[i] != strlen(bss->paths_stat[i]) + 1,
+		      "check",
+		      "failed to match stat return [%d]: %d vs %zd [%s]\n",
+		      i, bss->rets_stat[i], strlen(bss->paths_stat[i]) + 1,
+		      bss->paths_stat[i]);
+		CHECK(bss->rets_close[i] != strlen(bss->paths_stat[i]) + 1,
+		      "check",
+		      "failed to match stat return [%d]: %d vs %zd [%s]\n",
+		      i, bss->rets_close[i], strlen(bss->paths_close[i]) + 1,
+		      bss->paths_stat[i]);
+	}
+
+cleanup:
+	test_d_path__destroy(skel);
+}
+
+static void test_d_path_check_rdonly_mem(void)
+{
+	struct test_d_path_check_rdonly_mem *skel;
+
+	skel = test_d_path_check_rdonly_mem__open_and_load();
+	ASSERT_ERR_PTR(skel, "unexpected_load_overwriting_rdonly_mem");
+
+	test_d_path_check_rdonly_mem__destroy(skel);
+}
+
+static void test_d_path_check_types(void)
+{
+	struct test_d_path_check_types *skel;
+
+	skel = test_d_path_check_types__open_and_load();
+	ASSERT_ERR_PTR(skel, "unexpected_load_passing_wrong_type");
+
+	test_d_path_check_types__destroy(skel);
+}
+
+void test_d_path(void)
+{
+	if (test__start_subtest("basic"))
+		test_d_path_basic();
+
+	if (test__start_subtest("check_rdonly_mem"))
+		test_d_path_check_rdonly_mem();
+
+	if (test__start_subtest("check_alloc_mem"))
+		test_d_path_check_types();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/decap_sanity.c b/tools/testing/selftests/bpf/prog_tests/decap_sanity.c
new file mode 100644
index 000000000000..d79f398ec6b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/decap_sanity.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "decap_sanity.skel.h"
+
+#define NS_TEST "decap_sanity_ns"
+#define IPV6_IFACE_ADDR "face::1"
+#define UDP_TEST_PORT 7777
+
+void test_decap_sanity(void)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_hook, .attach_point = BPF_TC_EGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach);
+	struct nstoken *nstoken = NULL;
+	struct decap_sanity *skel;
+	struct sockaddr_in6 addr;
+	socklen_t addrlen;
+	char buf[128] = {};
+	int sockfd, err;
+
+	skel = decap_sanity__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open_and_load"))
+		return;
+
+	SYS(fail, "ip netns add %s", NS_TEST);
+	SYS(fail, "ip -net %s -6 addr add %s/128 dev lo nodad", NS_TEST, IPV6_IFACE_ADDR);
+	SYS(fail, "ip -net %s link set dev lo up", NS_TEST);
+
+	nstoken = open_netns(NS_TEST);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto fail;
+
+	qdisc_hook.ifindex = if_nametoindex("lo");
+	if (!ASSERT_GT(qdisc_hook.ifindex, 0, "if_nametoindex lo"))
+		goto fail;
+
+	err = bpf_tc_hook_create(&qdisc_hook);
+	if (!ASSERT_OK(err, "create qdisc hook"))
+		goto fail;
+
+	tc_attach.prog_fd = bpf_program__fd(skel->progs.decap_sanity);
+	err = bpf_tc_attach(&qdisc_hook, &tc_attach);
+	if (!ASSERT_OK(err, "attach filter"))
+		goto fail;
+
+	addrlen = sizeof(addr);
+	err = make_sockaddr(AF_INET6, IPV6_IFACE_ADDR, UDP_TEST_PORT,
+			    (void *)&addr, &addrlen);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto fail;
+	sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
+	if (!ASSERT_NEQ(sockfd, -1, "socket"))
+		goto fail;
+	err = sendto(sockfd, buf, sizeof(buf), 0, (void *)&addr, addrlen);
+	close(sockfd);
+	if (!ASSERT_EQ(err, sizeof(buf), "send"))
+		goto fail;
+
+	ASSERT_TRUE(skel->bss->init_csum_partial, "init_csum_partial");
+	ASSERT_TRUE(skel->bss->final_csum_none, "final_csum_none");
+	ASSERT_FALSE(skel->bss->broken_csum_start, "broken_csum_start");
+
+fail:
+	if (nstoken) {
+		bpf_tc_hook_destroy(&qdisc_hook);
+		close_netns(nstoken);
+	}
+	SYS_NOFAIL("ip netns del " NS_TEST);
+	decap_sanity__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/deny_namespace.c b/tools/testing/selftests/bpf/prog_tests/deny_namespace.c
new file mode 100644
index 000000000000..1bc6241b755b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/deny_namespace.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "test_deny_namespace.skel.h"
+#include <sched.h>
+#include "cap_helpers.h"
+#include <stdio.h>
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+/* negative return value -> some internal error
+ * positive return value -> userns creation failed
+ * 0                     -> userns creation succeeded
+ */
+static int create_user_ns(void)
+{
+	pid_t pid;
+
+	pid = fork();
+	if (pid < 0)
+		return -1;
+
+	if (pid == 0) {
+		if (unshare(CLONE_NEWUSER))
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	return wait_for_pid(pid);
+}
+
+static void test_userns_create_bpf(void)
+{
+	__u32 cap_mask = 1ULL << CAP_SYS_ADMIN;
+	__u64 old_caps = 0;
+
+	cap_enable_effective(cap_mask, &old_caps);
+
+	ASSERT_OK(create_user_ns(), "priv new user ns");
+
+	cap_disable_effective(cap_mask, &old_caps);
+
+	ASSERT_EQ(create_user_ns(), EPERM, "unpriv new user ns");
+
+	if (cap_mask & old_caps)
+		cap_enable_effective(cap_mask, NULL);
+}
+
+static void test_unpriv_userns_create_no_bpf(void)
+{
+	__u32 cap_mask = 1ULL << CAP_SYS_ADMIN;
+	__u64 old_caps = 0;
+
+	cap_disable_effective(cap_mask, &old_caps);
+
+	ASSERT_OK(create_user_ns(), "no-bpf unpriv new user ns");
+
+	if (cap_mask & old_caps)
+		cap_enable_effective(cap_mask, NULL);
+}
+
+void test_deny_namespace(void)
+{
+	struct test_deny_namespace *skel = NULL;
+	int err;
+
+	if (test__start_subtest("unpriv_userns_create_no_bpf"))
+		test_unpriv_userns_create_no_bpf();
+
+	skel = test_deny_namespace__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel load"))
+		goto close_prog;
+
+	err = test_deny_namespace__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto close_prog;
+
+	if (test__start_subtest("userns_create_bpf"))
+		test_userns_create_bpf();
+
+	test_deny_namespace__detach(skel);
+
+close_prog:
+	test_deny_namespace__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/dmabuf_iter.c b/tools/testing/selftests/bpf/prog_tests/dmabuf_iter.c
new file mode 100644
index 000000000000..6c2b0c3dbcd8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/dmabuf_iter.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Google */
+
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+#include "dmabuf_iter.skel.h"
+
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <linux/dma-buf.h>
+#include <linux/dma-heap.h>
+#include <linux/udmabuf.h>
+
+static int udmabuf = -1;
+static const char udmabuf_test_buffer_name[DMA_BUF_NAME_LEN] = "udmabuf_test_buffer_for_iter";
+static size_t udmabuf_test_buffer_size;
+static int sysheap_dmabuf = -1;
+static const char sysheap_test_buffer_name[DMA_BUF_NAME_LEN] = "sysheap_test_buffer_for_iter";
+static size_t sysheap_test_buffer_size;
+
+static int create_udmabuf(void)
+{
+	struct udmabuf_create create;
+	int dev_udmabuf, memfd, local_udmabuf;
+
+	udmabuf_test_buffer_size = 10 * getpagesize();
+
+	if (!ASSERT_LE(sizeof(udmabuf_test_buffer_name), DMA_BUF_NAME_LEN, "NAMETOOLONG"))
+		return -1;
+
+	memfd = memfd_create("memfd_test", MFD_ALLOW_SEALING);
+	if (!ASSERT_OK_FD(memfd, "memfd_create"))
+		return -1;
+
+	if (!ASSERT_OK(ftruncate(memfd, udmabuf_test_buffer_size), "ftruncate"))
+		goto close_memfd;
+
+	if (!ASSERT_OK(fcntl(memfd, F_ADD_SEALS, F_SEAL_SHRINK), "seal"))
+		goto close_memfd;
+
+	dev_udmabuf = open("/dev/udmabuf", O_RDONLY);
+	if (!ASSERT_OK_FD(dev_udmabuf, "open udmabuf"))
+		goto close_memfd;
+
+	memset(&create, 0, sizeof(create));
+	create.memfd = memfd;
+	create.flags = UDMABUF_FLAGS_CLOEXEC;
+	create.offset = 0;
+	create.size = udmabuf_test_buffer_size;
+
+	local_udmabuf = ioctl(dev_udmabuf, UDMABUF_CREATE, &create);
+	close(dev_udmabuf);
+	if (!ASSERT_OK_FD(local_udmabuf, "udmabuf_create"))
+		goto close_memfd;
+
+	if (!ASSERT_OK(ioctl(local_udmabuf, DMA_BUF_SET_NAME_B, udmabuf_test_buffer_name), "name"))
+		goto close_udmabuf;
+
+	return local_udmabuf;
+
+close_udmabuf:
+	close(local_udmabuf);
+close_memfd:
+	close(memfd);
+	return -1;
+}
+
+static int create_sys_heap_dmabuf(void)
+{
+	sysheap_test_buffer_size = 20 * getpagesize();
+
+	struct dma_heap_allocation_data data = {
+		.len = sysheap_test_buffer_size,
+		.fd = 0,
+		.fd_flags = O_RDWR | O_CLOEXEC,
+		.heap_flags = 0,
+	};
+	int heap_fd, ret;
+
+	if (!ASSERT_LE(sizeof(sysheap_test_buffer_name), DMA_BUF_NAME_LEN, "NAMETOOLONG"))
+		return -1;
+
+	heap_fd = open("/dev/dma_heap/system", O_RDONLY);
+	if (!ASSERT_OK_FD(heap_fd, "open dma heap"))
+		return -1;
+
+	ret = ioctl(heap_fd, DMA_HEAP_IOCTL_ALLOC, &data);
+	close(heap_fd);
+	if (!ASSERT_OK(ret, "syheap alloc"))
+		return -1;
+
+	if (!ASSERT_OK(ioctl(data.fd, DMA_BUF_SET_NAME_B, sysheap_test_buffer_name), "name"))
+		goto close_sysheap_dmabuf;
+
+	return data.fd;
+
+close_sysheap_dmabuf:
+	close(data.fd);
+	return -1;
+}
+
+static int create_test_buffers(void)
+{
+	udmabuf = create_udmabuf();
+	sysheap_dmabuf = create_sys_heap_dmabuf();
+
+	if (udmabuf < 0 || sysheap_dmabuf < 0)
+		return -1;
+
+	return 0;
+}
+
+static void destroy_test_buffers(void)
+{
+	close(udmabuf);
+	udmabuf = -1;
+
+	close(sysheap_dmabuf);
+	sysheap_dmabuf = -1;
+}
+
+enum Fields { INODE, SIZE, NAME, EXPORTER, FIELD_COUNT };
+struct DmabufInfo {
+	unsigned long inode;
+	unsigned long size;
+	char name[DMA_BUF_NAME_LEN];
+	char exporter[32];
+};
+
+static bool check_dmabuf_info(const struct DmabufInfo *bufinfo,
+			      unsigned long size,
+			      const char *name, const char *exporter)
+{
+	return size == bufinfo->size &&
+	       !strcmp(name, bufinfo->name) &&
+	       !strcmp(exporter, bufinfo->exporter);
+}
+
+static void subtest_dmabuf_iter_check_no_infinite_reads(struct dmabuf_iter *skel)
+{
+	int iter_fd;
+	char buf[256];
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.dmabuf_collector));
+	if (!ASSERT_OK_FD(iter_fd, "iter_create"))
+		return;
+
+	while (read(iter_fd, buf, sizeof(buf)) > 0)
+		; /* Read out all contents */
+
+	/* Next reads should return 0 */
+	ASSERT_EQ(read(iter_fd, buf, sizeof(buf)), 0, "read");
+
+	close(iter_fd);
+}
+
+static void subtest_dmabuf_iter_check_default_iter(struct dmabuf_iter *skel)
+{
+	bool found_test_sysheap_dmabuf = false;
+	bool found_test_udmabuf = false;
+	struct DmabufInfo bufinfo;
+	size_t linesize = 0;
+	char *line = NULL;
+	FILE *iter_file;
+	int iter_fd, f = INODE;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.dmabuf_collector));
+	if (!ASSERT_OK_FD(iter_fd, "iter_create"))
+		return;
+
+	iter_file = fdopen(iter_fd, "r");
+	if (!ASSERT_OK_PTR(iter_file, "fdopen"))
+		goto close_iter_fd;
+
+	while (getline(&line, &linesize, iter_file) != -1) {
+		if (f % FIELD_COUNT == INODE) {
+			ASSERT_EQ(sscanf(line, "%ld", &bufinfo.inode), 1,
+				  "read inode");
+		} else if (f % FIELD_COUNT == SIZE) {
+			ASSERT_EQ(sscanf(line, "%ld", &bufinfo.size), 1,
+				  "read size");
+		} else if (f % FIELD_COUNT == NAME) {
+			ASSERT_EQ(sscanf(line, "%s", bufinfo.name), 1,
+				  "read name");
+		} else if (f % FIELD_COUNT == EXPORTER) {
+			ASSERT_EQ(sscanf(line, "%31s", bufinfo.exporter), 1,
+				  "read exporter");
+
+			if (check_dmabuf_info(&bufinfo,
+					      sysheap_test_buffer_size,
+					      sysheap_test_buffer_name,
+					      "system"))
+				found_test_sysheap_dmabuf = true;
+			else if (check_dmabuf_info(&bufinfo,
+						   udmabuf_test_buffer_size,
+						   udmabuf_test_buffer_name,
+						   "udmabuf"))
+				found_test_udmabuf = true;
+		}
+		++f;
+	}
+
+	ASSERT_EQ(f % FIELD_COUNT, INODE, "number of fields");
+
+	ASSERT_TRUE(found_test_sysheap_dmabuf, "found_test_sysheap_dmabuf");
+	ASSERT_TRUE(found_test_udmabuf, "found_test_udmabuf");
+
+	free(line);
+	fclose(iter_file);
+close_iter_fd:
+	close(iter_fd);
+}
+
+static void subtest_dmabuf_iter_check_open_coded(struct dmabuf_iter *skel, int map_fd)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	char key[DMA_BUF_NAME_LEN];
+	int err, fd;
+	bool found;
+
+	/* No need to attach it, just run it directly */
+	fd = bpf_program__fd(skel->progs.iter_dmabuf_for_each);
+
+	err = bpf_prog_test_run_opts(fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	if (!ASSERT_OK(bpf_map_get_next_key(map_fd, NULL, key), "get next key"))
+		return;
+
+	do {
+		ASSERT_OK(bpf_map_lookup_elem(map_fd, key, &found), "lookup");
+		ASSERT_TRUE(found, "found test buffer");
+	} while (bpf_map_get_next_key(map_fd, key, key));
+}
+
+void test_dmabuf_iter(void)
+{
+	struct dmabuf_iter *skel = NULL;
+	int map_fd;
+	const bool f = false;
+
+	skel = dmabuf_iter__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dmabuf_iter__open_and_load"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.testbuf_hash);
+	if (!ASSERT_OK_FD(map_fd, "map_fd"))
+		goto destroy_skel;
+
+	if (!ASSERT_OK(bpf_map_update_elem(map_fd, udmabuf_test_buffer_name, &f, BPF_ANY),
+		       "insert udmabuf"))
+		goto destroy_skel;
+	if (!ASSERT_OK(bpf_map_update_elem(map_fd, sysheap_test_buffer_name, &f, BPF_ANY),
+		       "insert sysheap buffer"))
+		goto destroy_skel;
+
+	if (!ASSERT_OK(create_test_buffers(), "create_test_buffers"))
+		goto destroy;
+
+	if (!ASSERT_OK(dmabuf_iter__attach(skel), "skel_attach"))
+		goto destroy;
+
+	if (test__start_subtest("no_infinite_reads"))
+		subtest_dmabuf_iter_check_no_infinite_reads(skel);
+	if (test__start_subtest("default_iter"))
+		subtest_dmabuf_iter_check_default_iter(skel);
+	if (test__start_subtest("open_coded"))
+		subtest_dmabuf_iter_check_open_coded(skel, map_fd);
+
+destroy:
+	destroy_test_buffers();
+destroy_skel:
+	dmabuf_iter__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
new file mode 100644
index 000000000000..d3d94596ab79
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/dummy_st_ops.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include <test_progs.h>
+#include "dummy_st_ops_success.skel.h"
+#include "dummy_st_ops_fail.skel.h"
+#include "trace_dummy_st_ops.skel.h"
+
+/* Need to keep consistent with definition in include/linux/bpf.h */
+struct bpf_dummy_ops_state {
+	int val;
+};
+
+static void test_dummy_st_ops_attach(void)
+{
+	struct dummy_st_ops_success *skel;
+	struct bpf_link *link;
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.dummy_1);
+	ASSERT_EQ(libbpf_get_error(link), -EOPNOTSUPP, "dummy_st_ops_attach");
+
+	dummy_st_ops_success__destroy(skel);
+}
+
+static void test_dummy_init_ret_value(void)
+{
+	__u64 args[1] = {0};
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+	struct dummy_st_ops_success *skel;
+	int fd, err;
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.test_1);
+	err = bpf_prog_test_run_opts(fd, &attr);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(attr.retval, 0xf2f3f4f5, "test_ret");
+
+	dummy_st_ops_success__destroy(skel);
+}
+
+static void test_dummy_init_ptr_arg(void)
+{
+	int exp_retval = 0xbeef;
+	struct bpf_dummy_ops_state in_state = {
+		.val = exp_retval,
+	};
+	__u64 args[1] = {(unsigned long)&in_state};
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+	struct trace_dummy_st_ops *trace_skel;
+	struct dummy_st_ops_success *skel;
+	int fd, err;
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.test_1);
+
+	trace_skel = trace_dummy_st_ops__open();
+	if (!ASSERT_OK_PTR(trace_skel, "trace_dummy_st_ops__open"))
+		goto done;
+
+	err = bpf_program__set_attach_target(trace_skel->progs.fentry_test_1,
+					     fd, "test_1");
+	if (!ASSERT_OK(err, "set_attach_target(fentry_test_1)"))
+		goto done;
+
+	err = trace_dummy_st_ops__load(trace_skel);
+	if (!ASSERT_OK(err, "load(trace_skel)"))
+		goto done;
+
+	err = trace_dummy_st_ops__attach(trace_skel);
+	if (!ASSERT_OK(err, "attach(trace_skel)"))
+		goto done;
+
+	err = bpf_prog_test_run_opts(fd, &attr);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(in_state.val, 0x5a, "test_ptr_ret");
+	ASSERT_EQ(attr.retval, exp_retval, "test_ret");
+	ASSERT_EQ(trace_skel->bss->val, exp_retval, "fentry_val");
+
+done:
+	dummy_st_ops_success__destroy(skel);
+	trace_dummy_st_ops__destroy(trace_skel);
+}
+
+static void test_dummy_multiple_args(void)
+{
+	struct bpf_dummy_ops_state st = { 7 };
+	__u64 args[5] = {(__u64)&st, -100, 0x8a5f, 'c', 0x1234567887654321ULL};
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+	struct dummy_st_ops_success *skel;
+	int fd, err;
+	size_t i;
+	char name[8];
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.test_2);
+	err = bpf_prog_test_run_opts(fd, &attr);
+	ASSERT_OK(err, "test_run");
+	args[0] = 7;
+	for (i = 0; i < ARRAY_SIZE(args); i++) {
+		snprintf(name, sizeof(name), "arg %zu", i);
+		ASSERT_EQ(skel->bss->test_2_args[i], args[i], name);
+	}
+
+	dummy_st_ops_success__destroy(skel);
+}
+
+static void test_dummy_sleepable(void)
+{
+	struct bpf_dummy_ops_state st;
+	__u64 args[1] = {(__u64)&st};
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+	struct dummy_st_ops_success *skel;
+	int fd, err;
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.test_sleepable);
+	err = bpf_prog_test_run_opts(fd, &attr);
+	ASSERT_OK(err, "test_run");
+
+	dummy_st_ops_success__destroy(skel);
+}
+
+/* dummy_st_ops.test_sleepable() parameter is not marked as nullable,
+ * thus bpf_prog_test_run_opts() below should be rejected as it tries
+ * to pass NULL for this parameter.
+ */
+static void test_dummy_sleepable_reject_null(void)
+{
+	__u64 args[1] = {0};
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+	struct dummy_st_ops_success *skel;
+	int fd, err;
+
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "dummy_st_ops_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.test_sleepable);
+	err = bpf_prog_test_run_opts(fd, &attr);
+	ASSERT_EQ(err, -EINVAL, "test_run");
+
+	dummy_st_ops_success__destroy(skel);
+}
+
+void test_dummy_st_ops(void)
+{
+	if (test__start_subtest("dummy_st_ops_attach"))
+		test_dummy_st_ops_attach();
+	if (test__start_subtest("dummy_init_ret_value"))
+		test_dummy_init_ret_value();
+	if (test__start_subtest("dummy_init_ptr_arg"))
+		test_dummy_init_ptr_arg();
+	if (test__start_subtest("dummy_multiple_args"))
+		test_dummy_multiple_args();
+	if (test__start_subtest("dummy_sleepable"))
+		test_dummy_sleepable();
+	if (test__start_subtest("dummy_sleepable_reject_null"))
+		test_dummy_sleepable_reject_null();
+
+	RUN_TESTS(dummy_st_ops_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/dynptr.c b/tools/testing/selftests/bpf/prog_tests/dynptr.c
new file mode 100644
index 000000000000..b9f86cb91e81
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/dynptr.c
@@ -0,0 +1,193 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "dynptr_fail.skel.h"
+#include "dynptr_success.skel.h"
+
+enum test_setup_type {
+	SETUP_SYSCALL_SLEEP,
+	SETUP_SKB_PROG,
+	SETUP_SKB_PROG_TP,
+	SETUP_XDP_PROG,
+};
+
+static struct {
+	const char *prog_name;
+	enum test_setup_type type;
+} success_tests[] = {
+	{"test_read_write", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_data", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_copy", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_copy_xdp", SETUP_XDP_PROG},
+	{"test_dynptr_memset_zero", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_notzero", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_zero_offset", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_zero_adjusted", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_overflow", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_overflow_offset", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_memset_readonly", SETUP_SKB_PROG},
+	{"test_dynptr_memset_xdp_chunks", SETUP_XDP_PROG},
+	{"test_ringbuf", SETUP_SYSCALL_SLEEP},
+	{"test_skb_readonly", SETUP_SKB_PROG},
+	{"test_dynptr_skb_data", SETUP_SKB_PROG},
+	{"test_dynptr_skb_meta_data", SETUP_SKB_PROG},
+	{"test_dynptr_skb_meta_flags", SETUP_SKB_PROG},
+	{"test_adjust", SETUP_SYSCALL_SLEEP},
+	{"test_adjust_err", SETUP_SYSCALL_SLEEP},
+	{"test_zero_size_dynptr", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_is_null", SETUP_SYSCALL_SLEEP},
+	{"test_dynptr_is_rdonly", SETUP_SKB_PROG},
+	{"test_dynptr_clone", SETUP_SKB_PROG},
+	{"test_dynptr_skb_no_buff", SETUP_SKB_PROG},
+	{"test_dynptr_skb_strcmp", SETUP_SKB_PROG},
+	{"test_dynptr_skb_tp_btf", SETUP_SKB_PROG_TP},
+	{"test_probe_read_user_dynptr", SETUP_XDP_PROG},
+	{"test_probe_read_kernel_dynptr", SETUP_XDP_PROG},
+	{"test_probe_read_user_str_dynptr", SETUP_XDP_PROG},
+	{"test_probe_read_kernel_str_dynptr", SETUP_XDP_PROG},
+	{"test_copy_from_user_dynptr", SETUP_SYSCALL_SLEEP},
+	{"test_copy_from_user_str_dynptr", SETUP_SYSCALL_SLEEP},
+	{"test_copy_from_user_task_dynptr", SETUP_SYSCALL_SLEEP},
+	{"test_copy_from_user_task_str_dynptr", SETUP_SYSCALL_SLEEP},
+};
+
+#define PAGE_SIZE_64K 65536
+
+static void verify_success(const char *prog_name, enum test_setup_type setup_type)
+{
+	char user_data[384] = {[0 ... 382] = 'a', '\0'};
+	struct dynptr_success *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	int err;
+
+	skel = dynptr_success__open();
+	if (!ASSERT_OK_PTR(skel, "dynptr_success__open"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	bpf_program__set_autoload(prog, true);
+
+	err = dynptr_success__load(skel);
+	if (!ASSERT_OK(err, "dynptr_success__load"))
+		goto cleanup;
+
+	skel->bss->user_ptr = user_data;
+	skel->data->test_len[0] = sizeof(user_data);
+	memcpy(skel->bss->expected_str, user_data, sizeof(user_data));
+
+	switch (setup_type) {
+	case SETUP_SYSCALL_SLEEP:
+		link = bpf_program__attach(prog);
+		if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
+			goto cleanup;
+
+		usleep(1);
+
+		bpf_link__destroy(link);
+		break;
+	case SETUP_SKB_PROG:
+	{
+		int prog_fd;
+		char buf[64];
+
+		LIBBPF_OPTS(bpf_test_run_opts, topts,
+			    .data_in = &pkt_v4,
+			    .data_size_in = sizeof(pkt_v4),
+			    .data_out = buf,
+			    .data_size_out = sizeof(buf),
+			    .repeat = 1,
+		);
+
+		prog_fd = bpf_program__fd(prog);
+		if (!ASSERT_GE(prog_fd, 0, "prog_fd"))
+			goto cleanup;
+
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+		if (!ASSERT_OK(err, "test_run"))
+			goto cleanup;
+
+		break;
+	}
+	case SETUP_SKB_PROG_TP:
+	{
+		struct __sk_buff skb = {};
+		struct bpf_object *obj;
+		int aux_prog_fd;
+
+		/* Just use its test_run to trigger kfree_skb tracepoint */
+		err = bpf_prog_test_load("./test_pkt_access.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+					 &obj, &aux_prog_fd);
+		if (!ASSERT_OK(err, "prog_load sched cls"))
+			goto cleanup;
+
+		LIBBPF_OPTS(bpf_test_run_opts, topts,
+			    .data_in = &pkt_v4,
+			    .data_size_in = sizeof(pkt_v4),
+			    .ctx_in = &skb,
+			    .ctx_size_in = sizeof(skb),
+		);
+
+		link = bpf_program__attach(prog);
+		if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
+			goto cleanup;
+
+		err = bpf_prog_test_run_opts(aux_prog_fd, &topts);
+		bpf_link__destroy(link);
+
+		if (!ASSERT_OK(err, "test_run"))
+			goto cleanup;
+
+		break;
+	}
+	case SETUP_XDP_PROG:
+	{
+		char data[90000];
+		int err, prog_fd;
+		LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .repeat = 1,
+		);
+
+		if (getpagesize() == PAGE_SIZE_64K)
+			opts.data_size_in = sizeof(data);
+		else
+			opts.data_size_in = 5000;
+
+		prog_fd = bpf_program__fd(prog);
+		err = bpf_prog_test_run_opts(prog_fd, &opts);
+
+		if (!ASSERT_OK(err, "test_run"))
+			goto cleanup;
+
+		break;
+	}
+	}
+
+	ASSERT_EQ(skel->bss->err, 0, "err");
+
+cleanup:
+	dynptr_success__destroy(skel);
+}
+
+void test_dynptr(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(success_tests); i++) {
+		if (!test__start_subtest(success_tests[i].prog_name))
+			continue;
+
+		verify_success(success_tests[i].prog_name, success_tests[i].type);
+	}
+
+	RUN_TESTS(dynptr_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/empty_skb.c b/tools/testing/selftests/bpf/prog_tests/empty_skb.c
new file mode 100644
index 000000000000..438583e1f2d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/empty_skb.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <net/if.h>
+#include "empty_skb.skel.h"
+
+void test_empty_skb(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, tattr);
+	struct empty_skb *bpf_obj = NULL;
+	struct nstoken *tok = NULL;
+	struct bpf_program *prog;
+	char eth_hlen_pp[15];
+	char eth_hlen[14];
+	int veth_ifindex;
+	int ipip_ifindex;
+	int err;
+	int i;
+
+	struct {
+		const char *msg;
+		const void *data_in;
+		__u32 data_size_in;
+		int *ifindex;
+		int err;
+		int ret;
+		int lwt_egress_ret; /* expected retval at lwt/egress */
+		bool success_on_tc;
+	} tests[] = {
+		/* Empty packets are always rejected. */
+
+		{
+			/* BPF_PROG_RUN ETH_HLEN size check */
+			.msg = "veth empty ingress packet",
+			.data_in = NULL,
+			.data_size_in = 0,
+			.ifindex = &veth_ifindex,
+			.err = -EINVAL,
+		},
+		{
+			/* BPF_PROG_RUN ETH_HLEN size check */
+			.msg = "ipip empty ingress packet",
+			.data_in = NULL,
+			.data_size_in = 0,
+			.ifindex = &ipip_ifindex,
+			.err = -EINVAL,
+		},
+
+		/* ETH_HLEN-sized packets:
+		 * - can not be redirected at LWT_XMIT
+		 * - can be redirected at TC to non-tunneling dest
+		 */
+
+		{
+			/* __bpf_redirect_common */
+			.msg = "veth ETH_HLEN packet ingress",
+			.data_in = eth_hlen,
+			.data_size_in = sizeof(eth_hlen),
+			.ifindex = &veth_ifindex,
+			.ret = -ERANGE,
+			.lwt_egress_ret = -ERANGE,
+			.success_on_tc = true,
+		},
+		{
+			/* __bpf_redirect_no_mac
+			 *
+			 * lwt: skb->len=0 <= skb_network_offset=0
+			 * tc: skb->len=14 <= skb_network_offset=14
+			 */
+			.msg = "ipip ETH_HLEN packet ingress",
+			.data_in = eth_hlen,
+			.data_size_in = sizeof(eth_hlen),
+			.ifindex = &ipip_ifindex,
+			.ret = -ERANGE,
+			.lwt_egress_ret = -ERANGE,
+		},
+
+		/* ETH_HLEN+1-sized packet should be redirected. */
+
+		{
+			.msg = "veth ETH_HLEN+1 packet ingress",
+			.data_in = eth_hlen_pp,
+			.data_size_in = sizeof(eth_hlen_pp),
+			.ifindex = &veth_ifindex,
+			.lwt_egress_ret = 1, /* veth_xmit NET_XMIT_DROP */
+		},
+		{
+			.msg = "ipip ETH_HLEN+1 packet ingress",
+			.data_in = eth_hlen_pp,
+			.data_size_in = sizeof(eth_hlen_pp),
+			.ifindex = &ipip_ifindex,
+		},
+	};
+
+	SYS(out, "ip netns add empty_skb");
+	tok = open_netns("empty_skb");
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+	SYS(out, "ip link add veth0 type veth peer veth1");
+	SYS(out, "ip link set dev veth0 up");
+	SYS(out, "ip link set dev veth1 up");
+	SYS(out, "ip addr add 10.0.0.1/8 dev veth0");
+	SYS(out, "ip addr add 10.0.0.2/8 dev veth1");
+	veth_ifindex = if_nametoindex("veth0");
+
+	SYS(out, "ip link add ipip0 type ipip local 10.0.0.1 remote 10.0.0.2");
+	SYS(out, "ip link set ipip0 up");
+	SYS(out, "ip addr add 192.168.1.1/16 dev ipip0");
+	ipip_ifindex = if_nametoindex("ipip0");
+
+	bpf_obj = empty_skb__open_and_load();
+	if (!ASSERT_OK_PTR(bpf_obj, "open skeleton"))
+		goto out;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		bpf_object__for_each_program(prog, bpf_obj->obj) {
+			bool at_egress = strstr(bpf_program__name(prog), "egress") != NULL;
+			bool at_tc = !strncmp(bpf_program__section_name(prog), "tc", 2);
+			int expected_ret;
+			char buf[128];
+
+			expected_ret = at_egress && !at_tc ? tests[i].lwt_egress_ret : tests[i].ret;
+
+			tattr.data_in = tests[i].data_in;
+			tattr.data_size_in = tests[i].data_size_in;
+
+			tattr.data_size_out = 0;
+			bpf_obj->bss->ifindex = *tests[i].ifindex;
+			bpf_obj->bss->ret = 0;
+			err = bpf_prog_test_run_opts(bpf_program__fd(prog), &tattr);
+			sprintf(buf, "err: %s [%s]", tests[i].msg, bpf_program__name(prog));
+
+			if (at_tc && tests[i].success_on_tc)
+				ASSERT_GE(err, 0, buf);
+			else
+				ASSERT_EQ(err, tests[i].err, buf);
+			sprintf(buf, "ret: %s [%s]", tests[i].msg, bpf_program__name(prog));
+			if (at_tc && tests[i].success_on_tc)
+				ASSERT_GE(bpf_obj->bss->ret, 0, buf);
+			else
+				ASSERT_EQ(bpf_obj->bss->ret, expected_ret, buf);
+		}
+	}
+
+out:
+	if (bpf_obj)
+		empty_skb__destroy(bpf_obj);
+	if (tok)
+		close_netns(tok);
+	SYS_NOFAIL("ip netns del empty_skb");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/enable_stats.c b/tools/testing/selftests/bpf/prog_tests/enable_stats.c
new file mode 100644
index 000000000000..75f85d0fe74a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/enable_stats.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_enable_stats.skel.h"
+
+void test_enable_stats(void)
+{
+	struct test_enable_stats *skel;
+	int stats_fd, err, prog_fd;
+	struct bpf_prog_info info;
+	__u32 info_len = sizeof(info);
+	int duration = 0;
+
+	skel = test_enable_stats__open_and_load();
+	if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
+		return;
+
+	stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
+	if (CHECK(stats_fd < 0, "get_stats_fd", "failed %d\n", errno)) {
+		test_enable_stats__destroy(skel);
+		return;
+	}
+
+	err = test_enable_stats__attach(skel);
+	if (CHECK(err, "attach_raw_tp", "err %d\n", err))
+		goto cleanup;
+
+	test_enable_stats__detach(skel);
+
+	prog_fd = bpf_program__fd(skel->progs.test_enable_stats);
+	memset(&info, 0, info_len);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (CHECK(err, "get_prog_info",
+		  "failed to get bpf_prog_info for fd %d\n", prog_fd))
+		goto cleanup;
+	if (CHECK(info.run_time_ns == 0, "check_stats_enabled",
+		  "failed to enable run_time_ns stats\n"))
+		goto cleanup;
+
+	CHECK(info.run_cnt != skel->bss->count, "check_run_cnt_valid",
+	      "invalid run_cnt stats\n");
+
+cleanup:
+	test_enable_stats__destroy(skel);
+	close(stats_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/endian.c b/tools/testing/selftests/bpf/prog_tests/endian.c
new file mode 100644
index 000000000000..1a11612ace6c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/endian.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include "test_endian.skel.h"
+
+static int duration;
+
+#define IN16 0x1234
+#define IN32 0x12345678U
+#define IN64 0x123456789abcdef0ULL
+
+#define OUT16 0x3412
+#define OUT32 0x78563412U
+#define OUT64 0xf0debc9a78563412ULL
+
+void test_endian(void)
+{
+	struct test_endian* skel;
+	struct test_endian__bss *bss;
+	int err;
+
+	skel = test_endian__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+	bss = skel->bss;
+
+	bss->in16 = IN16;
+	bss->in32 = IN32;
+	bss->in64 = IN64;
+
+	err = test_endian__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	usleep(1);
+
+	CHECK(bss->out16 != OUT16, "out16", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->out16, (__u64)OUT16);
+	CHECK(bss->out32 != OUT32, "out32", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->out32, (__u64)OUT32);
+	CHECK(bss->out64 != OUT64, "out16", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->out64, (__u64)OUT64);
+
+	CHECK(bss->const16 != OUT16, "const16", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->const16, (__u64)OUT16);
+	CHECK(bss->const32 != OUT32, "const32", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->const32, (__u64)OUT32);
+	CHECK(bss->const64 != OUT64, "const64", "got 0x%llx != exp 0x%llx\n",
+	      (__u64)bss->const64, (__u64)OUT64);
+cleanup:
+	test_endian__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/exceptions.c b/tools/testing/selftests/bpf/prog_tests/exceptions.c
new file mode 100644
index 000000000000..516f4a13013c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/exceptions.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "exceptions.skel.h"
+#include "exceptions_ext.skel.h"
+#include "exceptions_fail.skel.h"
+#include "exceptions_assert.skel.h"
+
+static char log_buf[1024 * 1024];
+
+static void test_exceptions_failure(void)
+{
+	RUN_TESTS(exceptions_fail);
+}
+
+static void test_exceptions_success(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, ropts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	struct exceptions_ext *eskel = NULL;
+	struct exceptions *skel;
+	int ret;
+
+	skel = exceptions__open();
+	if (!ASSERT_OK_PTR(skel, "exceptions__open"))
+		return;
+
+	ret = exceptions__load(skel);
+	if (!ASSERT_OK(ret, "exceptions__load"))
+		goto done;
+
+	if (!ASSERT_OK(bpf_map_update_elem(bpf_map__fd(skel->maps.jmp_table), &(int){0},
+					   &(int){bpf_program__fd(skel->progs.exception_tail_call_target)}, BPF_ANY),
+		       "bpf_map_update_elem jmp_table"))
+		goto done;
+
+#define RUN_SUCCESS(_prog, return_val)						  \
+	if (!test__start_subtest(#_prog)) goto _prog##_##return_val;		  \
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs._prog), &ropts); \
+	ASSERT_OK(ret, #_prog " prog run ret");					  \
+	ASSERT_EQ(ropts.retval, return_val, #_prog " prog run retval");		  \
+	_prog##_##return_val:
+
+	RUN_SUCCESS(exception_throw_always_1, 64);
+	RUN_SUCCESS(exception_throw_always_2, 32);
+	RUN_SUCCESS(exception_throw_unwind_1, 16);
+	RUN_SUCCESS(exception_throw_unwind_2, 32);
+	RUN_SUCCESS(exception_throw_default, 0);
+	RUN_SUCCESS(exception_throw_default_value, 5);
+	RUN_SUCCESS(exception_tail_call, 24);
+	RUN_SUCCESS(exception_ext, 0);
+	RUN_SUCCESS(exception_ext_mod_cb_runtime, 35);
+	RUN_SUCCESS(exception_throw_subprog, 1);
+	RUN_SUCCESS(exception_assert_nz_gfunc, 1);
+	RUN_SUCCESS(exception_assert_zero_gfunc, 1);
+	RUN_SUCCESS(exception_assert_neg_gfunc, 1);
+	RUN_SUCCESS(exception_assert_pos_gfunc, 1);
+	RUN_SUCCESS(exception_assert_negeq_gfunc, 1);
+	RUN_SUCCESS(exception_assert_poseq_gfunc, 1);
+	RUN_SUCCESS(exception_assert_nz_gfunc_with, 1);
+	RUN_SUCCESS(exception_assert_zero_gfunc_with, 1);
+	RUN_SUCCESS(exception_assert_neg_gfunc_with, 1);
+	RUN_SUCCESS(exception_assert_pos_gfunc_with, 1);
+	RUN_SUCCESS(exception_assert_negeq_gfunc_with, 1);
+	RUN_SUCCESS(exception_assert_poseq_gfunc_with, 1);
+	RUN_SUCCESS(exception_bad_assert_nz_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_zero_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_neg_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_pos_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_negeq_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_poseq_gfunc, 0);
+	RUN_SUCCESS(exception_bad_assert_nz_gfunc_with, 100);
+	RUN_SUCCESS(exception_bad_assert_zero_gfunc_with, 105);
+	RUN_SUCCESS(exception_bad_assert_neg_gfunc_with, 200);
+	RUN_SUCCESS(exception_bad_assert_pos_gfunc_with, 0);
+	RUN_SUCCESS(exception_bad_assert_negeq_gfunc_with, 101);
+	RUN_SUCCESS(exception_bad_assert_poseq_gfunc_with, 99);
+	RUN_SUCCESS(exception_assert_range, 1);
+	RUN_SUCCESS(exception_assert_range_with, 1);
+	RUN_SUCCESS(exception_bad_assert_range, 0);
+	RUN_SUCCESS(exception_bad_assert_range_with, 10);
+
+#define RUN_EXT(load_ret, attach_err, expr, msg, after_link)			  \
+	{									  \
+		LIBBPF_OPTS(bpf_object_open_opts, o, .kernel_log_buf = log_buf,		 \
+						     .kernel_log_size = sizeof(log_buf), \
+						     .kernel_log_level = 2);		 \
+		exceptions_ext__destroy(eskel);					  \
+		eskel = exceptions_ext__open_opts(&o);				  \
+		struct bpf_program *prog = NULL;				  \
+		struct bpf_link *link = NULL;					  \
+		if (!ASSERT_OK_PTR(eskel, "exceptions_ext__open"))		  \
+			goto done;						  \
+		(expr);								  \
+		ASSERT_OK_PTR(bpf_program__name(prog), bpf_program__name(prog));  \
+		if (!ASSERT_EQ(exceptions_ext__load(eskel), load_ret,		  \
+			       "exceptions_ext__load"))	{			  \
+			printf("%s\n", log_buf);				  \
+			goto done;						  \
+		}								  \
+		if (load_ret != 0) {						  \
+			if (!ASSERT_OK_PTR(strstr(log_buf, msg), "strstr")) {	  \
+				printf("%s\n", log_buf);			  \
+				goto done;					  \
+			}							  \
+		}								  \
+		if (!load_ret && attach_err) {					  \
+			if (!ASSERT_ERR_PTR(link = bpf_program__attach(prog), "attach err")) \
+				goto done;					  \
+		} else if (!load_ret) {						  \
+			if (!ASSERT_OK_PTR(link = bpf_program__attach(prog), "attach ok"))  \
+				goto done;					  \
+			(void)(after_link);					  \
+			bpf_link__destroy(link);				  \
+		}								  \
+	}
+
+	if (test__start_subtest("non-throwing fentry -> exception_cb"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.pfentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod"), "set_attach_target"))
+				goto done;
+		}), "FENTRY/FEXIT programs cannot attach to exception callback", 0);
+
+	if (test__start_subtest("throwing fentry -> exception_cb"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.throwing_fentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod"), "set_attach_target"))
+				goto done;
+		}), "FENTRY/FEXIT programs cannot attach to exception callback", 0);
+
+	if (test__start_subtest("non-throwing fexit -> exception_cb"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.pfexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod"), "set_attach_target"))
+				goto done;
+		}), "FENTRY/FEXIT programs cannot attach to exception callback", 0);
+
+	if (test__start_subtest("throwing fexit -> exception_cb"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.throwing_fexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod"), "set_attach_target"))
+				goto done;
+		}), "FENTRY/FEXIT programs cannot attach to exception callback", 0);
+
+	if (test__start_subtest("throwing extension (with custom cb) -> exception_cb"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.throwing_exception_cb_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod"), "set_attach_target"))
+				goto done;
+		}), "Extension programs cannot attach to exception callback", 0);
+
+	if (test__start_subtest("throwing extension -> global func in exception_cb"))
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_exception_cb_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext_mod_cb_runtime),
+				       "exception_cb_mod_global"), "set_attach_target"))
+				goto done;
+		}), "", ({ RUN_SUCCESS(exception_ext_mod_cb_runtime, 131); }));
+
+	if (test__start_subtest("throwing extension (with custom cb) -> global func in exception_cb"))
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_ext),
+				       "exception_ext_global"), "set_attach_target"))
+				goto done;
+		}), "", ({ RUN_SUCCESS(exception_ext, 128); }));
+
+	if (test__start_subtest("non-throwing fentry -> non-throwing subprog"))
+		/* non-throwing fentry -> non-throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.pfentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing fentry -> non-throwing subprog"))
+		/* throwing fentry -> non-throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_fentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("non-throwing fentry -> throwing subprog"))
+		/* non-throwing fentry -> throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.pfentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing fentry -> throwing subprog"))
+		/* throwing fentry -> throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_fentry;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("non-throwing fexit -> non-throwing subprog"))
+		/* non-throwing fexit -> non-throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.pfexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing fexit -> non-throwing subprog"))
+		/* throwing fexit -> non-throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_fexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("non-throwing fexit -> throwing subprog"))
+		/* non-throwing fexit -> throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.pfexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing fexit -> throwing subprog"))
+		/* throwing fexit -> throwing subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_fexit;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	/* fmod_ret not allowed for subprog - Check so we remember to handle its
+	 * throwing specification compatibility with target when supported.
+	 */
+	if (test__start_subtest("non-throwing fmod_ret -> non-throwing subprog"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.pfmod_ret;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "can't modify return codes of BPF program", 0);
+
+	/* fmod_ret not allowed for subprog - Check so we remember to handle its
+	 * throwing specification compatibility with target when supported.
+	 */
+	if (test__start_subtest("non-throwing fmod_ret -> non-throwing global subprog"))
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.pfmod_ret;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "global_subprog"), "set_attach_target"))
+				goto done;
+		}), "can't modify return codes of BPF program", 0);
+
+	if (test__start_subtest("non-throwing extension -> non-throwing subprog"))
+		/* non-throwing extension -> non-throwing subprog : BAD (!global) */
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "subprog"), "set_attach_target"))
+				goto done;
+		}), "subprog() is not a global function", 0);
+
+	if (test__start_subtest("non-throwing extension -> throwing subprog"))
+		/* non-throwing extension -> throwing subprog : BAD (!global) */
+		RUN_EXT(-EINVAL, true, ({
+			prog = eskel->progs.extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_subprog"), "set_attach_target"))
+				goto done;
+		}), "throwing_subprog() is not a global function", 0);
+
+	if (test__start_subtest("non-throwing extension -> non-throwing subprog"))
+		/* non-throwing extension -> non-throwing global subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "global_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("non-throwing extension -> throwing global subprog"))
+		/* non-throwing extension -> throwing global subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_global_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing extension -> throwing global subprog"))
+		/* throwing extension -> throwing global subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "throwing_global_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing extension -> non-throwing global subprog"))
+		/* throwing extension -> non-throwing global subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "global_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("non-throwing extension -> main subprog"))
+		/* non-throwing extension -> main subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "exception_throw_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+	if (test__start_subtest("throwing extension -> main subprog"))
+		/* throwing extension -> main subprog : OK */
+		RUN_EXT(0, false, ({
+			prog = eskel->progs.throwing_extension;
+			bpf_program__set_autoload(prog, true);
+			if (!ASSERT_OK(bpf_program__set_attach_target(prog,
+				       bpf_program__fd(skel->progs.exception_throw_subprog),
+				       "exception_throw_subprog"), "set_attach_target"))
+				goto done;
+		}), "", 0);
+
+done:
+	exceptions_ext__destroy(eskel);
+	exceptions__destroy(skel);
+}
+
+static void test_exceptions_assertions(void)
+{
+	RUN_TESTS(exceptions_assert);
+}
+
+void test_exceptions(void)
+{
+	test_exceptions_success();
+	test_exceptions_failure();
+	test_exceptions_assertions();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/exhandler.c b/tools/testing/selftests/bpf/prog_tests/exhandler.c
new file mode 100644
index 000000000000..118bb182ee20
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/exhandler.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+
+/* Test that verifies exception handling is working. fork()
+ * triggers task_newtask tracepoint; that new task will have a
+ * NULL pointer task_works, and the associated task->task_works->func
+ * should not be NULL if task_works itself is non-NULL.
+ *
+ * So to verify exception handling we want to see a NULL task_works
+ * and task_works->func; if we see this we can conclude that the
+ * exception handler ran when we attempted to dereference task->task_works
+ * and zeroed the destination register.
+ */
+#include "exhandler_kern.skel.h"
+
+void test_exhandler(void)
+{
+	int err = 0, duration = 0, status;
+	struct exhandler_kern *skel;
+	pid_t cpid;
+
+	skel = exhandler_kern__open_and_load();
+	if (CHECK(!skel, "skel_load", "skeleton failed: %d\n", err))
+		goto cleanup;
+
+	skel->bss->test_pid = getpid();
+
+	err = exhandler_kern__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto cleanup;
+	cpid = fork();
+	if (!ASSERT_GT(cpid, -1, "fork failed"))
+		goto cleanup;
+	if (cpid == 0)
+		_exit(0);
+	waitpid(cpid, &status, 0);
+
+	ASSERT_NEQ(skel->bss->exception_triggered, 0, "verify exceptions occurred");
+cleanup:
+	exhandler_kern__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fd_array.c b/tools/testing/selftests/bpf/prog_tests/fd_array.c
new file mode 100644
index 000000000000..c534b4d5f9da
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fd_array.c
@@ -0,0 +1,441 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#include <linux/btf.h>
+#include <bpf/bpf.h>
+
+#include "../test_btf.h"
+
+static inline int new_map(void)
+{
+	const char *name = NULL;
+	__u32 max_entries = 1;
+	__u32 value_size = 8;
+	__u32 key_size = 4;
+
+	return bpf_map_create(BPF_MAP_TYPE_ARRAY, name,
+			      key_size, value_size,
+			      max_entries, NULL);
+}
+
+static int new_btf(void)
+{
+	struct btf_blob {
+		struct btf_header btf_hdr;
+		__u32 types[8];
+		__u32 str;
+	} raw_btf = {
+		.btf_hdr = {
+			.magic = BTF_MAGIC,
+			.version = BTF_VERSION,
+			.hdr_len = sizeof(struct btf_header),
+			.type_len = sizeof(raw_btf.types),
+			.str_off = offsetof(struct btf_blob, str) - offsetof(struct btf_blob, types),
+			.str_len = sizeof(raw_btf.str),
+		},
+		.types = {
+			/* long */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),  /* [1] */
+			/* unsigned long */
+			BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),  /* [2] */
+		},
+	};
+
+	return bpf_btf_load(&raw_btf, sizeof(raw_btf), NULL);
+}
+
+#define Close(FD) do {		\
+	if ((FD) >= 0) {	\
+		close(FD);	\
+		FD = -1;	\
+	}			\
+} while(0)
+
+static bool map_exists(__u32 id)
+{
+	int fd;
+
+	fd = bpf_map_get_fd_by_id(id);
+	if (fd >= 0) {
+		close(fd);
+		return true;
+	}
+	return false;
+}
+
+static bool btf_exists(__u32 id)
+{
+	int fd;
+
+	fd = bpf_btf_get_fd_by_id(id);
+	if (fd >= 0) {
+		close(fd);
+		return true;
+	}
+	return false;
+}
+
+static inline int bpf_prog_get_map_ids(int prog_fd, __u32 *nr_map_ids, __u32 *map_ids)
+{
+	__u32 len = sizeof(struct bpf_prog_info);
+	struct bpf_prog_info info;
+	int err;
+
+	memset(&info, 0, len);
+	info.nr_map_ids = *nr_map_ids;
+	info.map_ids = ptr_to_u64(map_ids);
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		return -1;
+
+	*nr_map_ids = info.nr_map_ids;
+
+	return 0;
+}
+
+static int __load_test_prog(int map_fd, const int *fd_array, int fd_array_cnt)
+{
+	/* A trivial program which uses one map */
+	struct bpf_insn insns[] = {
+		BPF_LD_MAP_FD(BPF_REG_1, map_fd),
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+
+	opts.fd_array = fd_array;
+	opts.fd_array_cnt = fd_array_cnt;
+
+	return bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "GPL", insns, ARRAY_SIZE(insns), &opts);
+}
+
+static int load_test_prog(const int *fd_array, int fd_array_cnt)
+{
+	int map_fd;
+	int ret;
+
+	map_fd = new_map();
+	if (!ASSERT_GE(map_fd, 0, "new_map"))
+		return map_fd;
+
+	ret = __load_test_prog(map_fd, fd_array, fd_array_cnt);
+	close(map_fd);
+	return ret;
+}
+
+static bool check_expected_map_ids(int prog_fd, int expected, __u32 *map_ids, __u32 *nr_map_ids)
+{
+	int err;
+
+	err = bpf_prog_get_map_ids(prog_fd, nr_map_ids, map_ids);
+	if (!ASSERT_OK(err, "bpf_prog_get_map_ids"))
+		return false;
+	if (!ASSERT_EQ(*nr_map_ids, expected, "unexpected nr_map_ids"))
+		return false;
+
+	return true;
+}
+
+/*
+ * Load a program, which uses one map. No fd_array maps are present.
+ * On return only one map is expected to be bound to prog.
+ */
+static void check_fd_array_cnt__no_fd_array(void)
+{
+	__u32 map_ids[16];
+	__u32 nr_map_ids;
+	int prog_fd = -1;
+
+	prog_fd = load_test_prog(NULL, 0);
+	if (!ASSERT_GE(prog_fd, 0, "BPF_PROG_LOAD"))
+		return;
+	nr_map_ids = ARRAY_SIZE(map_ids);
+	check_expected_map_ids(prog_fd, 1, map_ids, &nr_map_ids);
+	close(prog_fd);
+}
+
+/*
+ * Load a program, which uses one map, and pass two extra, non-equal, maps in
+ * fd_array with fd_array_cnt=2. On return three maps are expected to be bound
+ * to the program.
+ */
+static void check_fd_array_cnt__fd_array_ok(void)
+{
+	int extra_fds[2] = { -1, -1 };
+	__u32 map_ids[16];
+	__u32 nr_map_ids;
+	int prog_fd = -1;
+
+	extra_fds[0] = new_map();
+	if (!ASSERT_GE(extra_fds[0], 0, "new_map"))
+		goto cleanup;
+	extra_fds[1] = new_map();
+	if (!ASSERT_GE(extra_fds[1], 0, "new_map"))
+		goto cleanup;
+	prog_fd = load_test_prog(extra_fds, 2);
+	if (!ASSERT_GE(prog_fd, 0, "BPF_PROG_LOAD"))
+		goto cleanup;
+	nr_map_ids = ARRAY_SIZE(map_ids);
+	if (!check_expected_map_ids(prog_fd, 3, map_ids, &nr_map_ids))
+		goto cleanup;
+
+	/* maps should still exist when original file descriptors are closed */
+	Close(extra_fds[0]);
+	Close(extra_fds[1]);
+	if (!ASSERT_EQ(map_exists(map_ids[0]), true, "map_ids[0] should exist"))
+		goto cleanup;
+	if (!ASSERT_EQ(map_exists(map_ids[1]), true, "map_ids[1] should exist"))
+		goto cleanup;
+
+	/* some fds might be invalid, so ignore return codes */
+cleanup:
+	Close(extra_fds[1]);
+	Close(extra_fds[0]);
+	Close(prog_fd);
+}
+
+/*
+ * Load a program with a few extra maps duplicated in the fd_array.
+ * After the load maps should only be referenced once.
+ */
+static void check_fd_array_cnt__duplicated_maps(void)
+{
+	int extra_fds[4] = { -1, -1, -1, -1 };
+	__u32 map_ids[16];
+	__u32 nr_map_ids;
+	int prog_fd = -1;
+
+	extra_fds[0] = extra_fds[2] = new_map();
+	if (!ASSERT_GE(extra_fds[0], 0, "new_map"))
+		goto cleanup;
+	extra_fds[1] = extra_fds[3] = new_map();
+	if (!ASSERT_GE(extra_fds[1], 0, "new_map"))
+		goto cleanup;
+	prog_fd = load_test_prog(extra_fds, 4);
+	if (!ASSERT_GE(prog_fd, 0, "BPF_PROG_LOAD"))
+		goto cleanup;
+	nr_map_ids = ARRAY_SIZE(map_ids);
+	if (!check_expected_map_ids(prog_fd, 3, map_ids, &nr_map_ids))
+		goto cleanup;
+
+	/* maps should still exist when original file descriptors are closed */
+	Close(extra_fds[0]);
+	Close(extra_fds[1]);
+	if (!ASSERT_EQ(map_exists(map_ids[0]), true, "map should exist"))
+		goto cleanup;
+	if (!ASSERT_EQ(map_exists(map_ids[1]), true, "map should exist"))
+		goto cleanup;
+
+	/* some fds might be invalid, so ignore return codes */
+cleanup:
+	Close(extra_fds[1]);
+	Close(extra_fds[0]);
+	Close(prog_fd);
+}
+
+/*
+ * Check that if maps which are referenced by a program are
+ * passed in fd_array, then they will be referenced only once
+ */
+static void check_fd_array_cnt__referenced_maps_in_fd_array(void)
+{
+	int extra_fds[1] = { -1 };
+	__u32 map_ids[16];
+	__u32 nr_map_ids;
+	int prog_fd = -1;
+
+	extra_fds[0] = new_map();
+	if (!ASSERT_GE(extra_fds[0], 0, "new_map"))
+		goto cleanup;
+	prog_fd = __load_test_prog(extra_fds[0], extra_fds, 1);
+	if (!ASSERT_GE(prog_fd, 0, "BPF_PROG_LOAD"))
+		goto cleanup;
+	nr_map_ids = ARRAY_SIZE(map_ids);
+	if (!check_expected_map_ids(prog_fd, 1, map_ids, &nr_map_ids))
+		goto cleanup;
+
+	/* map should still exist when original file descriptor is closed */
+	Close(extra_fds[0]);
+	if (!ASSERT_EQ(map_exists(map_ids[0]), true, "map should exist"))
+		goto cleanup;
+
+	/* some fds might be invalid, so ignore return codes */
+cleanup:
+	Close(extra_fds[0]);
+	Close(prog_fd);
+}
+
+static int get_btf_id_by_fd(int btf_fd, __u32 *id)
+{
+	struct bpf_btf_info info;
+	__u32 info_len = sizeof(info);
+	int err;
+
+	memset(&info, 0, info_len);
+	err = bpf_btf_get_info_by_fd(btf_fd, &info, &info_len);
+	if (err)
+		return err;
+	if (id)
+		*id = info.id;
+	return 0;
+}
+
+/*
+ * Check that fd_array operates properly for btfs. Namely, to check that
+ * passing a btf fd in fd_array increases its reference count, do the
+ * following:
+ *  1) Create a new btf, it's referenced only by a file descriptor, so refcnt=1
+ *  2) Load a BPF prog with fd_array[0] = btf_fd; now btf's refcnt=2
+ *  3) Close the btf_fd, now refcnt=1
+ * Wait and check that BTF still exists.
+ */
+static void check_fd_array_cnt__referenced_btfs(void)
+{
+	int extra_fds[1] = { -1 };
+	int prog_fd = -1;
+	__u32 btf_id;
+	int tries;
+	int err;
+
+	extra_fds[0] = new_btf();
+	if (!ASSERT_GE(extra_fds[0], 0, "new_btf"))
+		goto cleanup;
+	prog_fd = load_test_prog(extra_fds, 1);
+	if (!ASSERT_GE(prog_fd, 0, "BPF_PROG_LOAD"))
+		goto cleanup;
+
+	/* btf should still exist when original file descriptor is closed */
+	err = get_btf_id_by_fd(extra_fds[0], &btf_id);
+	if (!ASSERT_EQ(err, 0, "get_btf_id_by_fd"))
+		goto cleanup;
+
+	Close(extra_fds[0]);
+
+	if (!ASSERT_GE(kern_sync_rcu(), 0, "kern_sync_rcu 1"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(btf_exists(btf_id), true, "btf should exist"))
+		goto cleanup;
+
+	Close(prog_fd);
+
+	/* The program is freed by a workqueue, so no reliable
+	 * way to sync, so just wait a bit (max ~1 second). */
+	for (tries = 100; tries >= 0; tries--) {
+		usleep(1000);
+
+		if (!btf_exists(btf_id))
+			break;
+
+		if (tries)
+			continue;
+
+		PRINT_FAIL("btf should have been freed");
+	}
+
+	/* some fds might be invalid, so ignore return codes */
+cleanup:
+	Close(extra_fds[0]);
+	Close(prog_fd);
+}
+
+/*
+ * Test that a program with trash in fd_array can't be loaded:
+ * only map and BTF file descriptors should be accepted.
+ */
+static void check_fd_array_cnt__fd_array_with_trash(void)
+{
+	int extra_fds[3] = { -1, -1, -1 };
+	int prog_fd = -1;
+
+	extra_fds[0] = new_map();
+	if (!ASSERT_GE(extra_fds[0], 0, "new_map"))
+		goto cleanup;
+	extra_fds[1] = new_btf();
+	if (!ASSERT_GE(extra_fds[1], 0, "new_btf"))
+		goto cleanup;
+
+	/* trash 1: not a file descriptor */
+	extra_fds[2] = 0xbeef;
+	prog_fd = load_test_prog(extra_fds, 3);
+	if (!ASSERT_EQ(prog_fd, -EBADF, "prog should have been rejected with -EBADF"))
+		goto cleanup;
+
+	/* trash 2: not a map or btf */
+	extra_fds[2] = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(extra_fds[2], 0, "socket"))
+		goto cleanup;
+
+	prog_fd = load_test_prog(extra_fds, 3);
+	if (!ASSERT_EQ(prog_fd, -EINVAL, "prog should have been rejected with -EINVAL"))
+		goto cleanup;
+
+	/* Validate that the prog is ok if trash is removed */
+	Close(extra_fds[2]);
+	extra_fds[2] = new_btf();
+	if (!ASSERT_GE(extra_fds[2], 0, "new_btf"))
+		goto cleanup;
+
+	prog_fd = load_test_prog(extra_fds, 3);
+	if (!ASSERT_GE(prog_fd, 0, "prog should have been loaded"))
+		goto cleanup;
+
+	/* some fds might be invalid, so ignore return codes */
+cleanup:
+	Close(extra_fds[2]);
+	Close(extra_fds[1]);
+	Close(extra_fds[0]);
+}
+
+/*
+ * Test that a program with too big fd_array can't be loaded.
+ */
+static void check_fd_array_cnt__fd_array_too_big(void)
+{
+	int extra_fds[65];
+	int prog_fd = -1;
+	int i;
+
+	for (i = 0; i < 65; i++) {
+		extra_fds[i] = new_map();
+		if (!ASSERT_GE(extra_fds[i], 0, "new_map"))
+			goto cleanup_fds;
+	}
+
+	prog_fd = load_test_prog(extra_fds, 65);
+	ASSERT_EQ(prog_fd, -E2BIG, "prog should have been rejected with -E2BIG");
+
+cleanup_fds:
+	while (i > 0)
+		Close(extra_fds[--i]);
+}
+
+void test_fd_array_cnt(void)
+{
+	if (test__start_subtest("no-fd-array"))
+		check_fd_array_cnt__no_fd_array();
+
+	if (test__start_subtest("fd-array-ok"))
+		check_fd_array_cnt__fd_array_ok();
+
+	if (test__start_subtest("fd-array-dup-input"))
+		check_fd_array_cnt__duplicated_maps();
+
+	if (test__start_subtest("fd-array-ref-maps-in-array"))
+		check_fd_array_cnt__referenced_maps_in_fd_array();
+
+	if (test__start_subtest("fd-array-ref-btfs"))
+		check_fd_array_cnt__referenced_btfs();
+
+	if (test__start_subtest("fd-array-trash-input"))
+		check_fd_array_cnt__fd_array_with_trash();
+
+	if (test__start_subtest("fd-array-2big"))
+		check_fd_array_cnt__fd_array_too_big();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fd_htab_lookup.c b/tools/testing/selftests/bpf/prog_tests/fd_htab_lookup.c
new file mode 100644
index 000000000000..ca46fdd6e1ae
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fd_htab_lookup.c
@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <stdbool.h>
+#include <test_progs.h>
+#include "fd_htab_lookup.skel.h"
+
+struct htab_op_ctx {
+	int fd;
+	int loop;
+	unsigned int entries;
+	bool stop;
+};
+
+#define ERR_TO_RETVAL(where, err) ((void *)(long)(((where) << 12) | (-err)))
+
+static void *htab_lookup_fn(void *arg)
+{
+	struct htab_op_ctx *ctx = arg;
+	int i = 0;
+
+	while (i++ < ctx->loop && !ctx->stop) {
+		unsigned int j;
+
+		for (j = 0; j < ctx->entries; j++) {
+			unsigned int key = j, zero = 0, value;
+			int inner_fd, err;
+
+			err = bpf_map_lookup_elem(ctx->fd, &key, &value);
+			if (err) {
+				ctx->stop = true;
+				return ERR_TO_RETVAL(1, err);
+			}
+
+			inner_fd = bpf_map_get_fd_by_id(value);
+			if (inner_fd < 0) {
+				/* The old map has been freed */
+				if (inner_fd == -ENOENT)
+					continue;
+				ctx->stop = true;
+				return ERR_TO_RETVAL(2, inner_fd);
+			}
+
+			err = bpf_map_lookup_elem(inner_fd, &zero, &value);
+			if (err) {
+				close(inner_fd);
+				ctx->stop = true;
+				return ERR_TO_RETVAL(3, err);
+			}
+			close(inner_fd);
+
+			if (value != key) {
+				ctx->stop = true;
+				return ERR_TO_RETVAL(4, -EINVAL);
+			}
+		}
+	}
+
+	return NULL;
+}
+
+static void *htab_update_fn(void *arg)
+{
+	struct htab_op_ctx *ctx = arg;
+	int i = 0;
+
+	while (i++ < ctx->loop && !ctx->stop) {
+		unsigned int j;
+
+		for (j = 0; j < ctx->entries; j++) {
+			unsigned int key = j, zero = 0;
+			int inner_fd, err;
+
+			inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 4, 1, NULL);
+			if (inner_fd < 0) {
+				ctx->stop = true;
+				return ERR_TO_RETVAL(1, inner_fd);
+			}
+
+			err = bpf_map_update_elem(inner_fd, &zero, &key, 0);
+			if (err) {
+				close(inner_fd);
+				ctx->stop = true;
+				return ERR_TO_RETVAL(2, err);
+			}
+
+			err = bpf_map_update_elem(ctx->fd, &key, &inner_fd, BPF_EXIST);
+			if (err) {
+				close(inner_fd);
+				ctx->stop = true;
+				return ERR_TO_RETVAL(3, err);
+			}
+			close(inner_fd);
+		}
+	}
+
+	return NULL;
+}
+
+static int setup_htab(int fd, unsigned int entries)
+{
+	unsigned int i;
+
+	for (i = 0; i < entries; i++) {
+		unsigned int key = i, zero = 0;
+		int inner_fd, err;
+
+		inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 4, 1, NULL);
+		if (!ASSERT_OK_FD(inner_fd, "new array"))
+			return -1;
+
+		err = bpf_map_update_elem(inner_fd, &zero, &key, 0);
+		if (!ASSERT_OK(err, "init array")) {
+			close(inner_fd);
+			return -1;
+		}
+
+		err = bpf_map_update_elem(fd, &key, &inner_fd, 0);
+		if (!ASSERT_OK(err, "init outer")) {
+			close(inner_fd);
+			return -1;
+		}
+		close(inner_fd);
+	}
+
+	return 0;
+}
+
+static int get_int_from_env(const char *name, int dft)
+{
+	const char *value;
+
+	value = getenv(name);
+	if (!value)
+		return dft;
+
+	return atoi(value);
+}
+
+void test_fd_htab_lookup(void)
+{
+	unsigned int i, wr_nr = 8, rd_nr = 16;
+	pthread_t tids[wr_nr + rd_nr];
+	struct fd_htab_lookup *skel;
+	struct htab_op_ctx ctx;
+	int err;
+
+	skel = fd_htab_lookup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fd_htab_lookup__open_and_load"))
+		return;
+
+	ctx.fd = bpf_map__fd(skel->maps.outer_map);
+	ctx.loop = get_int_from_env("FD_HTAB_LOOP_NR", 5);
+	ctx.stop = false;
+	ctx.entries = 8;
+
+	err = setup_htab(ctx.fd, ctx.entries);
+	if (err)
+		goto destroy;
+
+	memset(tids, 0, sizeof(tids));
+	for (i = 0; i < wr_nr; i++) {
+		err = pthread_create(&tids[i], NULL, htab_update_fn, &ctx);
+		if (!ASSERT_OK(err, "pthread_create")) {
+			ctx.stop = true;
+			goto reap;
+		}
+	}
+	for (i = 0; i < rd_nr; i++) {
+		err = pthread_create(&tids[i + wr_nr], NULL, htab_lookup_fn, &ctx);
+		if (!ASSERT_OK(err, "pthread_create")) {
+			ctx.stop = true;
+			goto reap;
+		}
+	}
+
+reap:
+	for (i = 0; i < wr_nr + rd_nr; i++) {
+		void *ret = NULL;
+		char desc[32];
+
+		if (!tids[i])
+			continue;
+
+		snprintf(desc, sizeof(desc), "thread %u", i + 1);
+		err = pthread_join(tids[i], &ret);
+		ASSERT_OK(err, desc);
+		ASSERT_EQ(ret, NULL, desc);
+	}
+destroy:
+	fd_htab_lookup__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
new file mode 100644
index 000000000000..5ef1804e44df
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_fexit.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include "fentry_test.lskel.h"
+#include "fexit_test.lskel.h"
+
+void test_fentry_fexit(void)
+{
+	struct fentry_test_lskel *fentry_skel = NULL;
+	struct fexit_test_lskel *fexit_skel = NULL;
+	__u64 *fentry_res, *fexit_res;
+	int err, prog_fd, i;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	fentry_skel = fentry_test_lskel__open();
+	if (!ASSERT_OK_PTR(fentry_skel, "fentry_skel_load"))
+		goto close_prog;
+
+	fentry_skel->keyring_id	= KEY_SPEC_SESSION_KEYRING;
+	err = fentry_test_lskel__load(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_skel_load"))
+		goto close_prog;
+
+	fexit_skel = fexit_test_lskel__open();
+	if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_load"))
+		goto close_prog;
+
+	fexit_skel->keyring_id	= KEY_SPEC_SESSION_KEYRING;
+	err = fexit_test_lskel__load(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_skel_load"))
+		goto close_prog;
+
+	err = fentry_test_lskel__attach(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_attach"))
+		goto close_prog;
+	err = fexit_test_lskel__attach(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_attach"))
+		goto close_prog;
+
+	prog_fd = fexit_skel->progs.test1.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv6 test_run");
+	ASSERT_OK(topts.retval, "ipv6 test retval");
+
+	fentry_res = (__u64 *)fentry_skel->bss;
+	fexit_res = (__u64 *)fexit_skel->bss;
+	printf("%lld\n", fentry_skel->bss->test1_result);
+	for (i = 0; i < 8; i++) {
+		ASSERT_EQ(fentry_res[i], 1, "fentry result");
+		ASSERT_EQ(fexit_res[i], 1, "fexit result");
+	}
+
+close_prog:
+	fentry_test_lskel__destroy(fentry_skel);
+	fexit_test_lskel__destroy(fexit_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fentry_test.c b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
new file mode 100644
index 000000000000..ec882328eb59
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fentry_test.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include "fentry_test.lskel.h"
+#include "fentry_many_args.skel.h"
+
+static int fentry_test_common(struct fentry_test_lskel *fentry_skel)
+{
+	int err, prog_fd, i;
+	int link_fd;
+	__u64 *result;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	err = fentry_test_lskel__attach(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_attach"))
+		return err;
+
+	/* Check that already linked program can't be attached again. */
+	link_fd = fentry_test_lskel__test1__attach(fentry_skel);
+	if (!ASSERT_LT(link_fd, 0, "fentry_attach_link"))
+		return -1;
+
+	prog_fd = fentry_skel->progs.test1.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	result = (__u64 *)fentry_skel->bss;
+	for (i = 0; i < sizeof(*fentry_skel->bss) / sizeof(__u64); i++) {
+		if (!ASSERT_EQ(result[i], 1, "fentry_result"))
+			return -1;
+	}
+
+	fentry_test_lskel__detach(fentry_skel);
+
+	/* zero results for re-attach test */
+	memset(fentry_skel->bss, 0, sizeof(*fentry_skel->bss));
+	return 0;
+}
+
+static void fentry_test(void)
+{
+	struct fentry_test_lskel *fentry_skel = NULL;
+	int err;
+
+	fentry_skel = fentry_test_lskel__open();
+	if (!ASSERT_OK_PTR(fentry_skel, "fentry_skel_open"))
+		goto cleanup;
+
+	fentry_skel->keyring_id	= KEY_SPEC_SESSION_KEYRING;
+	err = fentry_test_lskel__load(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_skel_load"))
+		goto cleanup;
+
+	err = fentry_test_common(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_first_attach"))
+		goto cleanup;
+
+	err = fentry_test_common(fentry_skel);
+	ASSERT_OK(err, "fentry_second_attach");
+
+cleanup:
+	fentry_test_lskel__destroy(fentry_skel);
+}
+
+static void fentry_many_args(void)
+{
+	struct fentry_many_args *fentry_skel = NULL;
+	int err;
+
+	fentry_skel = fentry_many_args__open_and_load();
+	if (!ASSERT_OK_PTR(fentry_skel, "fentry_many_args_skel_load"))
+		goto cleanup;
+
+	err = fentry_many_args__attach(fentry_skel);
+	if (!ASSERT_OK(err, "fentry_many_args_attach"))
+		goto cleanup;
+
+	ASSERT_OK(trigger_module_test_read(1), "trigger_read");
+
+	ASSERT_EQ(fentry_skel->bss->test1_result, 1,
+		  "fentry_many_args_result1");
+	ASSERT_EQ(fentry_skel->bss->test2_result, 1,
+		  "fentry_many_args_result2");
+	ASSERT_EQ(fentry_skel->bss->test3_result, 1,
+		  "fentry_many_args_result3");
+
+cleanup:
+	fentry_many_args__destroy(fentry_skel);
+}
+
+void test_fentry_test(void)
+{
+	if (test__start_subtest("fentry"))
+		fentry_test();
+	if (test__start_subtest("fentry_many_args"))
+		fentry_many_args();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
new file mode 100644
index 000000000000..f29fc789c14b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <bpf/btf.h>
+#include "bind4_prog.skel.h"
+#include "freplace_progmap.skel.h"
+#include "xdp_dummy.skel.h"
+
+typedef int (*test_cb)(struct bpf_object *obj);
+
+static int check_data_map(struct bpf_object *obj, int prog_cnt, bool reset)
+{
+	struct bpf_map *data_map = NULL, *map;
+	__u64 *result = NULL;
+	const int zero = 0;
+	__u32 duration = 0;
+	int ret = -1, i;
+
+	result = malloc((prog_cnt + 32 /* spare */) * sizeof(__u64));
+	if (CHECK(!result, "alloc_memory", "failed to alloc memory"))
+		return -ENOMEM;
+
+	bpf_object__for_each_map(map, obj)
+		if (bpf_map__is_internal(map)) {
+			data_map = map;
+			break;
+		}
+	if (CHECK(!data_map, "find_data_map", "data map not found\n"))
+		goto out;
+
+	ret = bpf_map_lookup_elem(bpf_map__fd(data_map), &zero, result);
+	if (CHECK(ret, "get_result",
+		  "failed to get output data: %d\n", ret))
+		goto out;
+
+	for (i = 0; i < prog_cnt; i++) {
+		if (CHECK(result[i] != 1, "result",
+			  "fexit_bpf2bpf result[%d] failed err %llu\n",
+			  i, result[i]))
+			goto out;
+		result[i] = 0;
+	}
+	if (reset) {
+		ret = bpf_map_update_elem(bpf_map__fd(data_map), &zero, result, 0);
+		if (CHECK(ret, "reset_result", "failed to reset result\n"))
+			goto out;
+	}
+
+	ret = 0;
+out:
+	free(result);
+	return ret;
+}
+
+static void test_fexit_bpf2bpf_common(const char *obj_file,
+				      const char *target_obj_file,
+				      int prog_cnt,
+				      const char **prog_name,
+				      bool run_prog,
+				      test_cb cb)
+{
+	struct bpf_object *obj = NULL, *tgt_obj;
+	__u32 tgt_prog_id, info_len;
+	struct bpf_prog_info prog_info = {};
+	struct bpf_program **prog = NULL, *p;
+	struct bpf_link **link = NULL;
+	int err, tgt_fd, i;
+	struct btf *btf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v6,
+		.data_size_in = sizeof(pkt_v6),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(target_obj_file, BPF_PROG_TYPE_UNSPEC,
+			    &tgt_obj, &tgt_fd);
+	if (!ASSERT_OK(err, "tgt_prog_load"))
+		return;
+
+	info_len = sizeof(prog_info);
+	err = bpf_prog_get_info_by_fd(tgt_fd, &prog_info, &info_len);
+	if (!ASSERT_OK(err, "tgt_fd_get_info"))
+		goto close_prog;
+
+	tgt_prog_id = prog_info.id;
+	btf = bpf_object__btf(tgt_obj);
+
+	link = calloc(sizeof(struct bpf_link *), prog_cnt);
+	if (!ASSERT_OK_PTR(link, "link_ptr"))
+		goto close_prog;
+
+	prog = calloc(sizeof(struct bpf_program *), prog_cnt);
+	if (!ASSERT_OK_PTR(prog, "prog_ptr"))
+		goto close_prog;
+
+	obj = bpf_object__open_file(obj_file, NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open"))
+		goto close_prog;
+
+	bpf_object__for_each_program(p, obj) {
+		err = bpf_program__set_attach_target(p, tgt_fd, NULL);
+		ASSERT_OK(err, "set_attach_target");
+	}
+
+	err = bpf_object__load(obj);
+	if (!ASSERT_OK(err, "obj_load"))
+		goto close_prog;
+
+	for (i = 0; i < prog_cnt; i++) {
+		struct bpf_link_info link_info;
+		struct bpf_program *pos;
+		const char *pos_sec_name;
+		char *tgt_name;
+		__s32 btf_id;
+
+		tgt_name = strstr(prog_name[i], "/");
+		if (!ASSERT_OK_PTR(tgt_name, "tgt_name"))
+			goto close_prog;
+		btf_id = btf__find_by_name_kind(btf, tgt_name + 1, BTF_KIND_FUNC);
+
+		prog[i] = NULL;
+		bpf_object__for_each_program(pos, obj) {
+			pos_sec_name = bpf_program__section_name(pos);
+			if (pos_sec_name && !strcmp(pos_sec_name, prog_name[i])) {
+				prog[i] = pos;
+				break;
+			}
+		}
+		if (!ASSERT_OK_PTR(prog[i], prog_name[i]))
+			goto close_prog;
+
+		link[i] = bpf_program__attach_trace(prog[i]);
+		if (!ASSERT_OK_PTR(link[i], "attach_trace"))
+			goto close_prog;
+
+		info_len = sizeof(link_info);
+		memset(&link_info, 0, sizeof(link_info));
+		err = bpf_link_get_info_by_fd(bpf_link__fd(link[i]),
+					      &link_info, &info_len);
+		ASSERT_OK(err, "link_fd_get_info");
+		ASSERT_EQ(link_info.tracing.attach_type,
+			  bpf_program__expected_attach_type(prog[i]),
+			  "link_attach_type");
+		ASSERT_EQ(link_info.tracing.target_obj_id, tgt_prog_id, "link_tgt_obj_id");
+		ASSERT_EQ(link_info.tracing.target_btf_id, btf_id, "link_tgt_btf_id");
+	}
+
+	if (cb) {
+		err = cb(obj);
+		if (err)
+			goto close_prog;
+	}
+
+	if (!run_prog)
+		goto close_prog;
+
+	err = bpf_prog_test_run_opts(tgt_fd, &topts);
+	ASSERT_OK(err, "prog_run");
+	ASSERT_EQ(topts.retval, 0, "prog_run_ret");
+
+	if (check_data_map(obj, prog_cnt, false))
+		goto close_prog;
+
+close_prog:
+	for (i = 0; i < prog_cnt; i++)
+		bpf_link__destroy(link[i]);
+	bpf_object__close(obj);
+	bpf_object__close(tgt_obj);
+	free(link);
+	free(prog);
+}
+
+static void test_target_no_callees(void)
+{
+	const char *prog_name[] = {
+		"fexit/test_pkt_md_access",
+	};
+	test_fexit_bpf2bpf_common("./fexit_bpf2bpf_simple.bpf.o",
+				  "./test_pkt_md_access.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, true, NULL);
+}
+
+static void test_target_yes_callees(void)
+{
+	const char *prog_name[] = {
+		"fexit/test_pkt_access",
+		"fexit/test_pkt_access_subprog1",
+		"fexit/test_pkt_access_subprog2",
+		"fexit/test_pkt_access_subprog3",
+	};
+	test_fexit_bpf2bpf_common("./fexit_bpf2bpf.bpf.o",
+				  "./test_pkt_access.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, true, NULL);
+}
+
+static void test_func_replace(void)
+{
+	const char *prog_name[] = {
+		"fexit/test_pkt_access",
+		"fexit/test_pkt_access_subprog1",
+		"fexit/test_pkt_access_subprog2",
+		"fexit/test_pkt_access_subprog3",
+		"freplace/get_skb_len",
+		"freplace/get_skb_ifindex",
+		"freplace/get_constant",
+		"freplace/test_pkt_write_access_subprog",
+	};
+	test_fexit_bpf2bpf_common("./fexit_bpf2bpf.bpf.o",
+				  "./test_pkt_access.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, true, NULL);
+}
+
+static void test_func_replace_verify(void)
+{
+	const char *prog_name[] = {
+		"freplace/do_bind",
+	};
+	test_fexit_bpf2bpf_common("./freplace_connect4.bpf.o",
+				  "./connect4_prog.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, false, NULL);
+}
+
+static int test_second_attach(struct bpf_object *obj)
+{
+	const char *prog_name = "security_new_get_constant";
+	const char *tgt_name = "get_constant";
+	const char *tgt_obj_file = "./test_pkt_access.bpf.o";
+	struct bpf_program *prog = NULL;
+	struct bpf_object *tgt_obj;
+	struct bpf_link *link;
+	int err = 0, tgt_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v6,
+		.data_size_in = sizeof(pkt_v6),
+		.repeat = 1,
+	);
+
+	prog = bpf_object__find_program_by_name(obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "find_prog"))
+		return -ENOENT;
+
+	err = bpf_prog_test_load(tgt_obj_file, BPF_PROG_TYPE_UNSPEC,
+			    &tgt_obj, &tgt_fd);
+	if (!ASSERT_OK(err, "second_prog_load"))
+		return err;
+
+	link = bpf_program__attach_freplace(prog, tgt_fd, tgt_name);
+	if (!ASSERT_OK_PTR(link, "second_link"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(tgt_fd, &topts);
+	if (!ASSERT_OK(err, "ipv6 test_run"))
+		goto out;
+	if (!ASSERT_OK(topts.retval, "ipv6 retval"))
+		goto out;
+
+	err = check_data_map(obj, 1, true);
+	if (err)
+		goto out;
+
+out:
+	bpf_link__destroy(link);
+	bpf_object__close(tgt_obj);
+	return err;
+}
+
+static void test_func_replace_multi(void)
+{
+	const char *prog_name[] = {
+		"freplace/get_constant",
+	};
+	test_fexit_bpf2bpf_common("./freplace_get_constant.bpf.o",
+				  "./test_pkt_access.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, true, test_second_attach);
+}
+
+static void test_fmod_ret_freplace(void)
+{
+	struct bpf_object *freplace_obj = NULL, *pkt_obj, *fmod_obj = NULL;
+	const char *freplace_name = "./freplace_get_constant.bpf.o";
+	const char *fmod_ret_name = "./fmod_ret_freplace.bpf.o";
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts);
+	const char *tgt_name = "./test_pkt_access.bpf.o";
+	struct bpf_link *freplace_link = NULL;
+	struct bpf_program *prog;
+	__u32 duration = 0;
+	int err, pkt_fd, attach_prog_fd;
+
+	err = bpf_prog_test_load(tgt_name, BPF_PROG_TYPE_UNSPEC,
+			    &pkt_obj, &pkt_fd);
+	/* the target prog should load fine */
+	if (CHECK(err, "tgt_prog_load", "file %s err %d errno %d\n",
+		  tgt_name, err, errno))
+		return;
+
+	freplace_obj = bpf_object__open_file(freplace_name, NULL);
+	if (!ASSERT_OK_PTR(freplace_obj, "freplace_obj_open"))
+		goto out;
+
+	prog = bpf_object__next_program(freplace_obj, NULL);
+	err = bpf_program__set_attach_target(prog, pkt_fd, NULL);
+	ASSERT_OK(err, "freplace__set_attach_target");
+
+	err = bpf_object__load(freplace_obj);
+	if (CHECK(err, "freplace_obj_load", "err %d\n", err))
+		goto out;
+
+	freplace_link = bpf_program__attach_trace(prog);
+	if (!ASSERT_OK_PTR(freplace_link, "freplace_attach_trace"))
+		goto out;
+
+	fmod_obj = bpf_object__open_file(fmod_ret_name, NULL);
+	if (!ASSERT_OK_PTR(fmod_obj, "fmod_obj_open"))
+		goto out;
+
+	attach_prog_fd = bpf_program__fd(prog);
+	prog = bpf_object__next_program(fmod_obj, NULL);
+	err = bpf_program__set_attach_target(prog, attach_prog_fd, NULL);
+	ASSERT_OK(err, "fmod_ret_set_attach_target");
+
+	err = bpf_object__load(fmod_obj);
+	if (CHECK(!err, "fmod_obj_load", "loading fmod_ret should fail\n"))
+		goto out;
+
+out:
+	bpf_link__destroy(freplace_link);
+	bpf_object__close(freplace_obj);
+	bpf_object__close(fmod_obj);
+	bpf_object__close(pkt_obj);
+}
+
+
+static void test_func_sockmap_update(void)
+{
+	const char *prog_name[] = {
+		"freplace/cls_redirect",
+	};
+	test_fexit_bpf2bpf_common("./freplace_cls_redirect.bpf.o",
+				  "./test_cls_redirect.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, false, NULL);
+}
+
+static void test_obj_load_failure_common(const char *obj_file,
+					 const char *target_obj_file,
+					 const char *exp_msg)
+{
+	/*
+	 * standalone test that asserts failure to load freplace prog
+	 * because of invalid return code.
+	 */
+	struct bpf_object *obj = NULL, *pkt_obj;
+	struct bpf_program *prog;
+	char log_buf[64 * 1024];
+	int err, pkt_fd;
+	__u32 duration = 0;
+
+	err = bpf_prog_test_load(target_obj_file, BPF_PROG_TYPE_UNSPEC,
+			    &pkt_obj, &pkt_fd);
+	/* the target prog should load fine */
+	if (CHECK(err, "tgt_prog_load", "file %s err %d errno %d\n",
+		  target_obj_file, err, errno))
+		return;
+
+	obj = bpf_object__open_file(obj_file, NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open"))
+		goto close_prog;
+
+	prog = bpf_object__next_program(obj, NULL);
+	err = bpf_program__set_attach_target(prog, pkt_fd, NULL);
+	ASSERT_OK(err, "set_attach_target");
+
+	log_buf[0] = '\0';
+	if (exp_msg)
+		bpf_program__set_log_buf(prog, log_buf, sizeof(log_buf));
+	if (env.verbosity > VERBOSE_NONE)
+		bpf_program__set_log_level(prog, 2);
+
+	/* It should fail to load the program */
+	err = bpf_object__load(obj);
+	if (env.verbosity > VERBOSE_NONE && exp_msg) /* we overtook log */
+		printf("VERIFIER LOG:\n================\n%s\n================\n", log_buf);
+	if (CHECK(!err, "bpf_obj_load should fail", "err %d\n", err))
+		goto close_prog;
+
+	if (exp_msg)
+		ASSERT_HAS_SUBSTR(log_buf, exp_msg, "fail_msg");
+close_prog:
+	bpf_object__close(obj);
+	bpf_object__close(pkt_obj);
+}
+
+static void test_func_replace_return_code(void)
+{
+	/* test invalid return code in the replaced program */
+	test_obj_load_failure_common("./freplace_connect_v4_prog.bpf.o",
+				     "./connect4_prog.bpf.o", NULL);
+}
+
+static void test_func_map_prog_compatibility(void)
+{
+	/* test with spin lock map value in the replaced program */
+	test_obj_load_failure_common("./freplace_attach_probe.bpf.o",
+				     "./test_attach_probe.bpf.o", NULL);
+}
+
+static void test_func_replace_unreliable(void)
+{
+	/* freplace'ing unreliable main prog should fail with error
+	 * "Cannot replace static functions"
+	 */
+	test_obj_load_failure_common("freplace_unreliable_prog.bpf.o",
+				     "./verifier_btf_unreliable_prog.bpf.o",
+				     "Cannot replace static functions");
+}
+
+static void test_func_replace_global_func(void)
+{
+	const char *prog_name[] = {
+		"freplace/test_pkt_access",
+	};
+
+	test_fexit_bpf2bpf_common("./freplace_global_func.bpf.o",
+				  "./test_pkt_access.bpf.o",
+				  ARRAY_SIZE(prog_name),
+				  prog_name, false, NULL);
+}
+
+static int find_prog_btf_id(const char *name, __u32 attach_prog_fd)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	struct btf *btf;
+	int ret;
+
+	ret = bpf_prog_get_info_by_fd(attach_prog_fd, &info, &info_len);
+	if (ret)
+		return ret;
+
+	if (!info.btf_id)
+		return -EINVAL;
+
+	btf = btf__load_from_kernel_by_id(info.btf_id);
+	ret = libbpf_get_error(btf);
+	if (ret)
+		return ret;
+
+	ret = btf__find_by_name_kind(btf, name, BTF_KIND_FUNC);
+	btf__free(btf);
+	return ret;
+}
+
+static int load_fentry(int attach_prog_fd, int attach_btf_id)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		    .expected_attach_type = BPF_TRACE_FENTRY,
+		    .attach_prog_fd = attach_prog_fd,
+		    .attach_btf_id = attach_btf_id,
+	);
+	struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+
+	return bpf_prog_load(BPF_PROG_TYPE_TRACING,
+			     "bind4_fentry",
+			     "GPL",
+			     insns,
+			     ARRAY_SIZE(insns),
+			     &opts);
+}
+
+static void test_fentry_to_cgroup_bpf(void)
+{
+	struct bind4_prog *skel = NULL;
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int cgroup_fd = -1;
+	int fentry_fd = -1;
+	int btf_id;
+
+	cgroup_fd = test__join_cgroup("/fentry_to_cgroup_bpf");
+	if (!ASSERT_GE(cgroup_fd, 0, "cgroup_fd"))
+		return;
+
+	skel = bind4_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto cleanup;
+
+	skel->links.bind_v4_prog = bpf_program__attach_cgroup(skel->progs.bind_v4_prog, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.bind_v4_prog, "bpf_program__attach_cgroup"))
+		goto cleanup;
+
+	btf_id = find_prog_btf_id("bind_v4_prog", bpf_program__fd(skel->progs.bind_v4_prog));
+	if (!ASSERT_GE(btf_id, 0, "find_prog_btf_id"))
+		goto cleanup;
+
+	fentry_fd = load_fentry(bpf_program__fd(skel->progs.bind_v4_prog), btf_id);
+	if (!ASSERT_GE(fentry_fd, 0, "load_fentry"))
+		goto cleanup;
+
+	/* Make sure bpf_prog_get_info_by_fd works correctly when attaching
+	 * to another BPF program.
+	 */
+
+	ASSERT_OK(bpf_prog_get_info_by_fd(fentry_fd, &info, &info_len),
+		  "bpf_prog_get_info_by_fd");
+
+	ASSERT_EQ(info.btf_id, 0, "info.btf_id");
+	ASSERT_EQ(info.attach_btf_id, btf_id, "info.attach_btf_id");
+	ASSERT_GT(info.attach_btf_obj_id, 0, "info.attach_btf_obj_id");
+
+cleanup:
+	if (cgroup_fd >= 0)
+		close(cgroup_fd);
+	if (fentry_fd >= 0)
+		close(fentry_fd);
+	bind4_prog__destroy(skel);
+}
+
+static void test_func_replace_progmap(void)
+{
+	struct bpf_cpumap_val value = { .qsize = 1 };
+	struct freplace_progmap *skel = NULL;
+	struct xdp_dummy *tgt_skel = NULL;
+	__u32 key = 0;
+	int err;
+
+	skel = freplace_progmap__open();
+	if (!ASSERT_OK_PTR(skel, "prog_open"))
+		return;
+
+	tgt_skel = xdp_dummy__open_and_load();
+	if (!ASSERT_OK_PTR(tgt_skel, "tgt_prog_load"))
+		goto out;
+
+	err = bpf_program__set_attach_target(skel->progs.xdp_cpumap_prog,
+					     bpf_program__fd(tgt_skel->progs.xdp_dummy_prog),
+					     "xdp_dummy_prog");
+	if (!ASSERT_OK(err, "set_attach_target"))
+		goto out;
+
+	err = freplace_progmap__load(skel);
+	if (!ASSERT_OK(err, "obj_load"))
+		goto out;
+
+	/* Prior to fixing the kernel, loading the PROG_TYPE_EXT 'redirect'
+	 * program above will cause the map owner type of 'cpumap' to be set to
+	 * PROG_TYPE_EXT. This in turn will cause the bpf_map_update_elem()
+	 * below to fail, because the program we are inserting into the map is
+	 * of PROG_TYPE_XDP. After fixing the kernel, the initial ownership will
+	 * be correctly resolved to the *target* of the PROG_TYPE_EXT program
+	 * (i.e., PROG_TYPE_XDP) and the map update will succeed.
+	 */
+	value.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_drop_prog);
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.cpu_map),
+				  &key, &value, 0);
+	ASSERT_OK(err, "map_update");
+
+out:
+	xdp_dummy__destroy(tgt_skel);
+	freplace_progmap__destroy(skel);
+}
+
+/* NOTE: affect other tests, must run in serial mode */
+void serial_test_fexit_bpf2bpf(void)
+{
+	if (test__start_subtest("target_no_callees"))
+		test_target_no_callees();
+	if (test__start_subtest("target_yes_callees"))
+		test_target_yes_callees();
+	if (test__start_subtest("func_replace"))
+		test_func_replace();
+	if (test__start_subtest("func_replace_verify"))
+		test_func_replace_verify();
+	if (test__start_subtest("func_sockmap_update"))
+		test_func_sockmap_update();
+	if (test__start_subtest("func_replace_return_code"))
+		test_func_replace_return_code();
+	if (test__start_subtest("func_map_prog_compatibility"))
+		test_func_map_prog_compatibility();
+	if (test__start_subtest("func_replace_unreliable"))
+		test_func_replace_unreliable();
+	if (test__start_subtest("func_replace_multi"))
+		test_func_replace_multi();
+	if (test__start_subtest("fmod_ret_freplace"))
+		test_fmod_ret_freplace();
+	if (test__start_subtest("func_replace_global_func"))
+		test_func_replace_global_func();
+	if (test__start_subtest("fentry_to_cgroup_bpf"))
+		test_fentry_to_cgroup_bpf();
+	if (test__start_subtest("func_replace_progmap"))
+		test_func_replace_progmap();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
new file mode 100644
index 000000000000..552a0875ca6d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_sleep.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <test_progs.h>
+#include <time.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include "fexit_sleep.lskel.h"
+
+static int do_sleep(void *skel)
+{
+	struct fexit_sleep_lskel *fexit_skel = skel;
+	struct timespec ts1 = { .tv_nsec = 1 };
+	struct timespec ts2 = { .tv_sec = 10 };
+
+	fexit_skel->bss->pid = getpid();
+	(void)syscall(__NR_nanosleep, &ts1, NULL);
+	(void)syscall(__NR_nanosleep, &ts2, NULL);
+	return 0;
+}
+
+#define STACK_SIZE (1024 * 1024)
+
+void test_fexit_sleep(void)
+{
+	struct fexit_sleep_lskel *fexit_skel = NULL;
+	int wstatus, duration = 0;
+	pid_t cpid;
+	char *child_stack = NULL;
+	int err, fexit_cnt;
+
+	fexit_skel = fexit_sleep_lskel__open_and_load();
+	if (CHECK(!fexit_skel, "fexit_skel_load", "fexit skeleton failed\n"))
+		goto cleanup;
+
+	err = fexit_sleep_lskel__attach(fexit_skel);
+	if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err))
+		goto cleanup;
+
+	child_stack = mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE |
+			   MAP_ANONYMOUS | MAP_STACK, -1, 0);
+	if (!ASSERT_NEQ(child_stack, MAP_FAILED, "mmap"))
+		goto cleanup;
+
+	cpid = clone(do_sleep, child_stack + STACK_SIZE, CLONE_FILES | SIGCHLD, fexit_skel);
+	if (CHECK(cpid == -1, "clone", "%s\n", strerror(errno)))
+		goto cleanup;
+
+	/* wait until first sys_nanosleep ends and second sys_nanosleep starts */
+	while (READ_ONCE(fexit_skel->bss->fentry_cnt) != 2);
+	fexit_cnt = READ_ONCE(fexit_skel->bss->fexit_cnt);
+	if (CHECK(fexit_cnt != 1, "fexit_cnt", "%d", fexit_cnt))
+		goto cleanup;
+
+	/* close progs and detach them. That will trigger two nop5->jmp5 rewrites
+	 * in the trampolines to skip nanosleep_fexit prog.
+	 * The nanosleep_fentry prog will get detached first.
+	 * The nanosleep_fexit prog will get detached second.
+	 * Detaching will trigger freeing of both progs JITed images.
+	 * There will be two dying bpf_tramp_image-s, but only the initial
+	 * bpf_tramp_image (with both _fentry and _fexit progs will be stuck
+	 * waiting for percpu_ref_kill to confirm). The other one
+	 * will be freed quickly.
+	 */
+	close(fexit_skel->progs.nanosleep_fentry.prog_fd);
+	close(fexit_skel->progs.nanosleep_fexit.prog_fd);
+	fexit_sleep_lskel__detach(fexit_skel);
+
+	/* kill the thread to unwind sys_nanosleep stack through the trampoline */
+	kill(cpid, 9);
+
+	if (CHECK(waitpid(cpid, &wstatus, 0) == -1, "waitpid", "%s\n", strerror(errno)))
+		goto cleanup;
+	if (CHECK(WEXITSTATUS(wstatus) != 0, "exitstatus", "failed"))
+		goto cleanup;
+
+	/* The bypassed nanosleep_fexit prog shouldn't have executed.
+	 * Unlike progs the maps were not freed and directly accessible.
+	 */
+	fexit_cnt = READ_ONCE(fexit_skel->bss->fexit_cnt);
+	if (CHECK(fexit_cnt != 1, "fexit_cnt", "%d", fexit_cnt))
+		goto cleanup;
+
+cleanup:
+	munmap(child_stack, STACK_SIZE);
+	fexit_sleep_lskel__destroy(fexit_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
new file mode 100644
index 000000000000..14c91b6f1e83
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include "bpf_util.h"
+
+void serial_test_fexit_stress(void)
+{
+	int bpf_max_tramp_links, err, i;
+	int *fd, *fexit_fd, *link_fd;
+
+	bpf_max_tramp_links = get_bpf_max_tramp_links();
+	if (!ASSERT_GE(bpf_max_tramp_links, 1, "bpf_max_tramp_links"))
+		return;
+	fd = calloc(bpf_max_tramp_links * 2, sizeof(*fd));
+	if (!ASSERT_OK_PTR(fd, "fd"))
+		return;
+	fexit_fd = fd;
+	link_fd = fd + bpf_max_tramp_links;
+
+	const struct bpf_insn trace_program[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+
+	LIBBPF_OPTS(bpf_prog_load_opts, trace_opts,
+		.expected_attach_type = BPF_TRACE_FEXIT,
+	);
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	err = libbpf_find_vmlinux_btf_id("bpf_fentry_test1",
+					 trace_opts.expected_attach_type);
+	if (!ASSERT_GT(err, 0, "find_vmlinux_btf_id"))
+		goto out;
+	trace_opts.attach_btf_id = err;
+
+	for (i = 0; i < bpf_max_tramp_links; i++) {
+		fexit_fd[i] = bpf_prog_load(BPF_PROG_TYPE_TRACING, NULL, "GPL",
+					    trace_program,
+					    ARRAY_SIZE(trace_program),
+					    &trace_opts);
+		if (!ASSERT_GE(fexit_fd[i], 0, "fexit load"))
+			goto out;
+		link_fd[i] = bpf_link_create(fexit_fd[i], 0, BPF_TRACE_FEXIT, NULL);
+		if (!ASSERT_GE(link_fd[i], 0, "fexit attach"))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(fexit_fd[0], &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+
+out:
+	for (i = 0; i < bpf_max_tramp_links; i++) {
+		if (link_fd[i] > 0)
+			close(link_fd[i]);
+		if (fexit_fd[i] > 0)
+			close(fexit_fd[i]);
+	}
+	free(fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_test.c b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
new file mode 100644
index 000000000000..94eed753560c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_test.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include "fexit_test.lskel.h"
+#include "fexit_many_args.skel.h"
+
+static int fexit_test_common(struct fexit_test_lskel *fexit_skel)
+{
+	int err, prog_fd, i;
+	int link_fd;
+	__u64 *result;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	err = fexit_test_lskel__attach(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_attach"))
+		return err;
+
+	/* Check that already linked program can't be attached again. */
+	link_fd = fexit_test_lskel__test1__attach(fexit_skel);
+	if (!ASSERT_LT(link_fd, 0, "fexit_attach_link"))
+		return -1;
+
+	prog_fd = fexit_skel->progs.test1.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	result = (__u64 *)fexit_skel->bss;
+	for (i = 0; i < sizeof(*fexit_skel->bss) / sizeof(__u64); i++) {
+		if (!ASSERT_EQ(result[i], 1, "fexit_result"))
+			return -1;
+	}
+
+	fexit_test_lskel__detach(fexit_skel);
+
+	/* zero results for re-attach test */
+	memset(fexit_skel->bss, 0, sizeof(*fexit_skel->bss));
+	return 0;
+}
+
+static void fexit_test(void)
+{
+	struct fexit_test_lskel *fexit_skel = NULL;
+	int err;
+
+	fexit_skel = fexit_test_lskel__open();
+	if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_open"))
+		goto cleanup;
+
+	fexit_skel->keyring_id	= KEY_SPEC_SESSION_KEYRING;
+	err = fexit_test_lskel__load(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_skel_load"))
+		goto cleanup;
+
+	err = fexit_test_common(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_first_attach"))
+		goto cleanup;
+
+	err = fexit_test_common(fexit_skel);
+	ASSERT_OK(err, "fexit_second_attach");
+
+cleanup:
+	fexit_test_lskel__destroy(fexit_skel);
+}
+
+static void fexit_many_args(void)
+{
+	struct fexit_many_args *fexit_skel = NULL;
+	int err;
+
+	fexit_skel = fexit_many_args__open_and_load();
+	if (!ASSERT_OK_PTR(fexit_skel, "fexit_many_args_skel_load"))
+		goto cleanup;
+
+	err = fexit_many_args__attach(fexit_skel);
+	if (!ASSERT_OK(err, "fexit_many_args_attach"))
+		goto cleanup;
+
+	ASSERT_OK(trigger_module_test_read(1), "trigger_read");
+
+	ASSERT_EQ(fexit_skel->bss->test1_result, 1,
+		  "fexit_many_args_result1");
+	ASSERT_EQ(fexit_skel->bss->test2_result, 1,
+		  "fexit_many_args_result2");
+	ASSERT_EQ(fexit_skel->bss->test3_result, 1,
+		  "fexit_many_args_result3");
+
+cleanup:
+	fexit_many_args__destroy(fexit_skel);
+}
+
+void test_fexit_test(void)
+{
+	if (test__start_subtest("fexit"))
+		fexit_test();
+	if (test__start_subtest("fexit_many_args"))
+		fexit_many_args();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fib_lookup.c b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c
new file mode 100644
index 000000000000..bd7658958004
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fib_lookup.c
@@ -0,0 +1,377 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/rtnetlink.h>
+#include <sys/types.h>
+#include <net/if.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "fib_lookup.skel.h"
+
+#define NS_TEST			"fib_lookup_ns"
+#define IPV6_IFACE_ADDR		"face::face"
+#define IPV6_IFACE_ADDR_SEC	"cafe::cafe"
+#define IPV6_ADDR_DST		"face::3"
+#define IPV6_NUD_FAILED_ADDR	"face::1"
+#define IPV6_NUD_STALE_ADDR	"face::2"
+#define IPV4_IFACE_ADDR		"10.0.0.254"
+#define IPV4_IFACE_ADDR_SEC	"10.1.0.254"
+#define IPV4_ADDR_DST		"10.2.0.254"
+#define IPV4_NUD_FAILED_ADDR	"10.0.0.1"
+#define IPV4_NUD_STALE_ADDR	"10.0.0.2"
+#define IPV4_TBID_ADDR		"172.0.0.254"
+#define IPV4_TBID_NET		"172.0.0.0"
+#define IPV4_TBID_DST		"172.0.0.2"
+#define IPV6_TBID_ADDR		"fd00::FFFF"
+#define IPV6_TBID_NET		"fd00::"
+#define IPV6_TBID_DST		"fd00::2"
+#define MARK_NO_POLICY		33
+#define MARK			42
+#define MARK_TABLE		"200"
+#define IPV4_REMOTE_DST		"1.2.3.4"
+#define IPV4_LOCAL		"10.4.0.3"
+#define IPV4_GW1		"10.4.0.1"
+#define IPV4_GW2		"10.4.0.2"
+#define IPV6_REMOTE_DST		"be:ef::b0:10"
+#define IPV6_LOCAL		"fd01::3"
+#define IPV6_GW1		"fd01::1"
+#define IPV6_GW2		"fd01::2"
+#define DMAC			"11:11:11:11:11:11"
+#define DMAC_INIT { 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, }
+#define DMAC2			"01:01:01:01:01:01"
+#define DMAC_INIT2 { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, }
+
+struct fib_lookup_test {
+	const char *desc;
+	const char *daddr;
+	int expected_ret;
+	const char *expected_src;
+	const char *expected_dst;
+	int lookup_flags;
+	__u32 tbid;
+	__u8 dmac[6];
+	__u32 mark;
+};
+
+static const struct fib_lookup_test tests[] = {
+	{ .desc = "IPv6 failed neigh",
+	  .daddr = IPV6_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_NO_NEIGH, },
+	{ .desc = "IPv6 stale neigh",
+	  .daddr = IPV6_NUD_STALE_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .dmac = DMAC_INIT, },
+	{ .desc = "IPv6 skip neigh",
+	  .daddr = IPV6_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv4 failed neigh",
+	  .daddr = IPV4_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_NO_NEIGH, },
+	{ .desc = "IPv4 stale neigh",
+	  .daddr = IPV4_NUD_STALE_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .dmac = DMAC_INIT, },
+	{ .desc = "IPv4 skip neigh",
+	  .daddr = IPV4_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv4 TBID lookup failure",
+	  .daddr = IPV4_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_NOT_FWDED,
+	  .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID,
+	  .tbid = RT_TABLE_MAIN, },
+	{ .desc = "IPv4 TBID lookup success",
+	  .daddr = IPV4_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID, .tbid = 100,
+	  .dmac = DMAC_INIT2, },
+	{ .desc = "IPv6 TBID lookup failure",
+	  .daddr = IPV6_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_NOT_FWDED,
+	  .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID,
+	  .tbid = RT_TABLE_MAIN, },
+	{ .desc = "IPv6 TBID lookup success",
+	  .daddr = IPV6_TBID_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .lookup_flags = BPF_FIB_LOOKUP_DIRECT | BPF_FIB_LOOKUP_TBID, .tbid = 100,
+	  .dmac = DMAC_INIT2, },
+	{ .desc = "IPv4 set src addr from netdev",
+	  .daddr = IPV4_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_src = IPV4_IFACE_ADDR,
+	  .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv6 set src addr from netdev",
+	  .daddr = IPV6_NUD_FAILED_ADDR, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_src = IPV6_IFACE_ADDR,
+	  .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv4 set prefsrc addr from route",
+	  .daddr = IPV4_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_src = IPV4_IFACE_ADDR_SEC,
+	  .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv6 set prefsrc addr route",
+	  .daddr = IPV6_ADDR_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_src = IPV6_IFACE_ADDR_SEC,
+	  .lookup_flags = BPF_FIB_LOOKUP_SRC | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	/* policy routing */
+	{ .desc = "IPv4 policy routing, default",
+	  .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV4_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv4 policy routing, mark doesn't point to a policy",
+	  .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV4_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK_NO_POLICY, },
+	{ .desc = "IPv4 policy routing, mark points to a policy",
+	  .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV4_GW2,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK, },
+	{ .desc = "IPv4 policy routing, mark points to a policy, but no flag",
+	  .daddr = IPV4_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV4_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK, },
+	{ .desc = "IPv6 policy routing, default",
+	  .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV6_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH, },
+	{ .desc = "IPv6 policy routing, mark doesn't point to a policy",
+	  .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV6_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK_NO_POLICY, },
+	{ .desc = "IPv6 policy routing, mark points to a policy",
+	  .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV6_GW2,
+	  .lookup_flags = BPF_FIB_LOOKUP_MARK | BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK, },
+	{ .desc = "IPv6 policy routing, mark points to a policy, but no flag",
+	  .daddr = IPV6_REMOTE_DST, .expected_ret = BPF_FIB_LKUP_RET_SUCCESS,
+	  .expected_dst = IPV6_GW1,
+	  .lookup_flags = BPF_FIB_LOOKUP_SKIP_NEIGH,
+	  .mark = MARK, },
+};
+
+static int setup_netns(void)
+{
+	int err;
+
+	SYS(fail, "ip link add veth1 type veth peer name veth2");
+	SYS(fail, "ip link set dev veth1 up");
+	SYS(fail, "ip link set dev veth2 up");
+
+	err = write_sysctl("/proc/sys/net/ipv4/neigh/veth1/gc_stale_time", "900");
+	if (!ASSERT_OK(err, "write_sysctl(net.ipv4.neigh.veth1.gc_stale_time)"))
+		goto fail;
+
+	err = write_sysctl("/proc/sys/net/ipv6/neigh/veth1/gc_stale_time", "900");
+	if (!ASSERT_OK(err, "write_sysctl(net.ipv6.neigh.veth1.gc_stale_time)"))
+		goto fail;
+
+	SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_IFACE_ADDR);
+	SYS(fail, "ip neigh add %s dev veth1 nud failed", IPV6_NUD_FAILED_ADDR);
+	SYS(fail, "ip neigh add %s dev veth1 lladdr %s nud stale", IPV6_NUD_STALE_ADDR, DMAC);
+
+	SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR);
+	SYS(fail, "ip neigh add %s dev veth1 nud failed", IPV4_NUD_FAILED_ADDR);
+	SYS(fail, "ip neigh add %s dev veth1 lladdr %s nud stale", IPV4_NUD_STALE_ADDR, DMAC);
+
+	/* Setup for prefsrc IP addr selection */
+	SYS(fail, "ip addr add %s/24 dev veth1", IPV4_IFACE_ADDR_SEC);
+	SYS(fail, "ip route add %s/32 dev veth1 src %s", IPV4_ADDR_DST, IPV4_IFACE_ADDR_SEC);
+
+	SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_IFACE_ADDR_SEC);
+	SYS(fail, "ip route add %s/128 dev veth1 src %s", IPV6_ADDR_DST, IPV6_IFACE_ADDR_SEC);
+
+	/* Setup for tbid lookup tests */
+	SYS(fail, "ip addr add %s/24 dev veth2", IPV4_TBID_ADDR);
+	SYS(fail, "ip route del %s/24 dev veth2", IPV4_TBID_NET);
+	SYS(fail, "ip route add table 100 %s/24 dev veth2", IPV4_TBID_NET);
+	SYS(fail, "ip neigh add %s dev veth2 lladdr %s nud stale", IPV4_TBID_DST, DMAC2);
+
+	SYS(fail, "ip addr add %s/64 dev veth2", IPV6_TBID_ADDR);
+	SYS(fail, "ip -6 route del %s/64 dev veth2", IPV6_TBID_NET);
+	SYS(fail, "ip -6 route add table 100 %s/64 dev veth2", IPV6_TBID_NET);
+	SYS(fail, "ip neigh add %s dev veth2 lladdr %s nud stale", IPV6_TBID_DST, DMAC2);
+
+	err = write_sysctl("/proc/sys/net/ipv4/conf/veth1/forwarding", "1");
+	if (!ASSERT_OK(err, "write_sysctl(net.ipv4.conf.veth1.forwarding)"))
+		goto fail;
+
+	err = write_sysctl("/proc/sys/net/ipv6/conf/veth1/forwarding", "1");
+	if (!ASSERT_OK(err, "write_sysctl(net.ipv6.conf.veth1.forwarding)"))
+		goto fail;
+
+	/* Setup for policy routing tests */
+	SYS(fail, "ip addr add %s/24 dev veth1", IPV4_LOCAL);
+	SYS(fail, "ip addr add %s/64 dev veth1 nodad", IPV6_LOCAL);
+	SYS(fail, "ip route add %s/32 via %s", IPV4_REMOTE_DST, IPV4_GW1);
+	SYS(fail, "ip route add %s/32 via %s table %s", IPV4_REMOTE_DST, IPV4_GW2, MARK_TABLE);
+	SYS(fail, "ip -6 route add %s/128 via %s", IPV6_REMOTE_DST, IPV6_GW1);
+	SYS(fail, "ip -6 route add %s/128 via %s table %s", IPV6_REMOTE_DST, IPV6_GW2, MARK_TABLE);
+	SYS(fail, "ip rule add prio 2 fwmark %d lookup %s", MARK, MARK_TABLE);
+	SYS(fail, "ip -6 rule add prio 2 fwmark %d lookup %s", MARK, MARK_TABLE);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int set_lookup_params(struct bpf_fib_lookup *params,
+			     const struct fib_lookup_test *test,
+			     int ifindex)
+{
+	int ret;
+
+	memset(params, 0, sizeof(*params));
+
+	params->l4_protocol = IPPROTO_TCP;
+	params->ifindex = ifindex;
+	params->tbid = test->tbid;
+	params->mark = test->mark;
+
+	if (inet_pton(AF_INET6, test->daddr, params->ipv6_dst) == 1) {
+		params->family = AF_INET6;
+		if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) {
+			ret = inet_pton(AF_INET6, IPV6_IFACE_ADDR, params->ipv6_src);
+			if (!ASSERT_EQ(ret, 1, "inet_pton(IPV6_IFACE_ADDR)"))
+				return -1;
+		}
+
+		return 0;
+	}
+
+	ret = inet_pton(AF_INET, test->daddr, &params->ipv4_dst);
+	if (!ASSERT_EQ(ret, 1, "convert IP[46] address"))
+		return -1;
+	params->family = AF_INET;
+
+	if (!(test->lookup_flags & BPF_FIB_LOOKUP_SRC)) {
+		ret = inet_pton(AF_INET, IPV4_IFACE_ADDR, &params->ipv4_src);
+		if (!ASSERT_EQ(ret, 1, "inet_pton(IPV4_IFACE_ADDR)"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static void mac_str(char *b, const __u8 *mac)
+{
+	sprintf(b, "%02X:%02X:%02X:%02X:%02X:%02X",
+		mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
+}
+
+static void assert_ip_address(int family, void *addr, const char *expected_str)
+{
+	char str[INET6_ADDRSTRLEN];
+	u8 expected_addr[16];
+	int addr_len = 0;
+	int ret;
+
+	switch (family) {
+	case AF_INET6:
+		ret = inet_pton(AF_INET6, expected_str, expected_addr);
+		ASSERT_EQ(ret, 1, "inet_pton(AF_INET6, expected_str)");
+		addr_len = 16;
+		break;
+	case AF_INET:
+		ret = inet_pton(AF_INET, expected_str, expected_addr);
+		ASSERT_EQ(ret, 1, "inet_pton(AF_INET, expected_str)");
+		addr_len = 4;
+		break;
+	default:
+		PRINT_FAIL("invalid address family: %d", family);
+		break;
+	}
+
+	if (memcmp(addr, expected_addr, addr_len)) {
+		inet_ntop(family, addr, str, sizeof(str));
+		PRINT_FAIL("expected %s actual %s ", expected_str, str);
+	}
+}
+
+static void assert_src_ip(struct bpf_fib_lookup *params, const char *expected)
+{
+	assert_ip_address(params->family, params->ipv6_src, expected);
+}
+
+static void assert_dst_ip(struct bpf_fib_lookup *params, const char *expected)
+{
+	assert_ip_address(params->family, params->ipv6_dst, expected);
+}
+
+void test_fib_lookup(void)
+{
+	struct bpf_fib_lookup *fib_params;
+	struct nstoken *nstoken = NULL;
+	struct __sk_buff skb = { };
+	struct fib_lookup *skel;
+	int prog_fd, err, ret, i;
+
+	/* The test does not use the skb->data, so
+	 * use pkt_v6 for both v6 and v4 test.
+	 */
+	LIBBPF_OPTS(bpf_test_run_opts, run_opts,
+		    .data_in = &pkt_v6,
+		    .data_size_in = sizeof(pkt_v6),
+		    .ctx_in = &skb,
+		    .ctx_size_in = sizeof(skb),
+	);
+
+	skel = fib_lookup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open_and_load"))
+		return;
+	prog_fd = bpf_program__fd(skel->progs.fib_lookup);
+
+	SYS(fail, "ip netns add %s", NS_TEST);
+
+	nstoken = open_netns(NS_TEST);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto fail;
+
+	if (setup_netns())
+		goto fail;
+
+	skb.ifindex = if_nametoindex("veth1");
+	if (!ASSERT_NEQ(skb.ifindex, 0, "if_nametoindex(veth1)"))
+		goto fail;
+
+	fib_params = &skel->bss->fib_params;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		printf("Testing %s ", tests[i].desc);
+
+		if (set_lookup_params(fib_params, &tests[i], skb.ifindex))
+			continue;
+
+		skel->bss->fib_lookup_ret = -1;
+		skel->bss->lookup_flags = tests[i].lookup_flags;
+
+		err = bpf_prog_test_run_opts(prog_fd, &run_opts);
+		if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+			continue;
+
+		ASSERT_EQ(skel->bss->fib_lookup_ret, tests[i].expected_ret,
+			  "fib_lookup_ret");
+
+		if (tests[i].expected_src)
+			assert_src_ip(fib_params, tests[i].expected_src);
+
+		if (tests[i].expected_dst)
+			assert_dst_ip(fib_params, tests[i].expected_dst);
+
+		ret = memcmp(tests[i].dmac, fib_params->dmac, sizeof(tests[i].dmac));
+		if (!ASSERT_EQ(ret, 0, "dmac not match")) {
+			char expected[18], actual[18];
+
+			mac_str(expected, tests[i].dmac);
+			mac_str(actual, fib_params->dmac);
+			printf("dmac expected %s actual %s ", expected, actual);
+		}
+
+		// ensure tbid is zero'd out after fib lookup.
+		if (tests[i].lookup_flags & BPF_FIB_LOOKUP_DIRECT) {
+			if (!ASSERT_EQ(skel->bss->fib_params.tbid, 0,
+					"expected fib_params.tbid to be zero"))
+				goto fail;
+		}
+	}
+
+fail:
+	if (nstoken)
+		close_netns(nstoken);
+	SYS_NOFAIL("ip netns del " NS_TEST);
+	fib_lookup__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/file_reader.c b/tools/testing/selftests/bpf/prog_tests/file_reader.c
new file mode 100644
index 000000000000..5cde32b35da4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/file_reader.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "file_reader.skel.h"
+#include "file_reader_fail.skel.h"
+#include <dlfcn.h>
+#include <sys/mman.h>
+
+const char *user_ptr = "hello world";
+char file_contents[256000];
+
+void *get_executable_base_addr(void)
+{
+	Dl_info info;
+
+	if (!dladdr((void *)&get_executable_base_addr, &info)) {
+		fprintf(stderr, "dladdr failed\n");
+		return NULL;
+	}
+
+	return info.dli_fbase;
+}
+
+static int initialize_file_contents(void)
+{
+	int fd, page_sz = sysconf(_SC_PAGESIZE);
+	ssize_t n = 0, cur, off;
+	void *addr;
+
+	fd = open("/proc/self/exe", O_RDONLY);
+	if (!ASSERT_OK_FD(fd, "Open /proc/self/exe\n"))
+		return 1;
+
+	do {
+		cur = read(fd, file_contents + n, sizeof(file_contents) - n);
+		if (!ASSERT_GT(cur, 0, "read success"))
+			break;
+		n += cur;
+	} while (n < sizeof(file_contents));
+
+	close(fd);
+
+	if (!ASSERT_EQ(n, sizeof(file_contents), "Read /proc/self/exe\n"))
+		return 1;
+
+	addr = get_executable_base_addr();
+	if (!ASSERT_NEQ(addr, NULL, "get executable address"))
+		return 1;
+
+	/* page-align base file address */
+	addr = (void *)((unsigned long)addr & ~(page_sz - 1));
+
+	/*
+	 * Page out range 0..512K, use 0..256K for positive tests and
+	 * 256K..512K for negative tests expecting page faults
+	 */
+	for (off = 0; off < sizeof(file_contents) * 2; off += page_sz) {
+		if (!ASSERT_OK(madvise(addr + off, page_sz, MADV_PAGEOUT),
+			       "madvise pageout"))
+			return errno;
+	}
+
+	return 0;
+}
+
+static void run_test(const char *prog_name)
+{
+	struct file_reader *skel;
+	struct bpf_program *prog;
+	int err, fd;
+
+	err = initialize_file_contents();
+	if (!ASSERT_OK(err, "initialize file contents"))
+		return;
+
+	skel = file_reader__open();
+	if (!ASSERT_OK_PTR(skel, "file_reader__open"))
+		return;
+
+	bpf_object__for_each_program(prog, skel->obj) {
+		bpf_program__set_autoload(prog, strcmp(bpf_program__name(prog), prog_name) == 0);
+	}
+
+	memcpy(skel->bss->user_buf, file_contents, sizeof(file_contents));
+	skel->bss->pid = getpid();
+
+	err = file_reader__load(skel);
+	if (!ASSERT_OK(err, "file_reader__load"))
+		goto cleanup;
+
+	err = file_reader__attach(skel);
+	if (!ASSERT_OK(err, "file_reader__attach"))
+		goto cleanup;
+
+	fd = open("/proc/self/exe", O_RDONLY);
+	if (fd >= 0)
+		close(fd);
+
+	ASSERT_EQ(skel->bss->err, 0, "err");
+	ASSERT_EQ(skel->bss->run_success, 1, "run_success");
+cleanup:
+	file_reader__destroy(skel);
+}
+
+void test_file_reader(void)
+{
+	if (test__start_subtest("on_open_expect_fault"))
+		run_test("on_open_expect_fault");
+
+	if (test__start_subtest("on_open_validate_file_read"))
+		run_test("on_open_validate_file_read");
+
+	if (test__start_subtest("negative"))
+		RUN_TESTS(file_reader_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fill_link_info.c b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c
new file mode 100644
index 000000000000..e40114620751
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fill_link_info.c
@@ -0,0 +1,652 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/limits.h>
+#include <test_progs.h>
+#include "trace_helpers.h"
+#include "test_fill_link_info.skel.h"
+#include "bpf/libbpf_internal.h"
+
+#define TP_CAT "sched"
+#define TP_NAME "sched_switch"
+
+static const char *kmulti_syms[] = {
+	"bpf_fentry_test2",
+	"bpf_fentry_test1",
+	"bpf_fentry_test3",
+};
+#define KMULTI_CNT ARRAY_SIZE(kmulti_syms)
+static __u64 kmulti_addrs[KMULTI_CNT];
+static __u64 kmulti_cookies[] = { 3, 1, 2 };
+
+#define KPROBE_FUNC "bpf_fentry_test1"
+static __u64 kprobe_addr;
+
+#define UPROBE_FILE "/proc/self/exe"
+static ssize_t uprobe_offset;
+/* uprobe attach point */
+static noinline void uprobe_func(void)
+{
+	asm volatile ("");
+}
+
+#define PERF_EVENT_COOKIE 0xdeadbeef
+
+static int verify_perf_link_info(int fd, enum bpf_perf_event_type type, long addr,
+				 ssize_t offset, ssize_t entry_offset)
+{
+	ssize_t ref_ctr_offset = entry_offset /* ref_ctr_offset for uprobes */;
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	char buf[PATH_MAX];
+	int err;
+
+	memset(&info, 0, sizeof(info));
+	buf[0] = '\0';
+
+again:
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "get_link_info"))
+		return -1;
+
+	if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_PERF_EVENT, "link_type"))
+		return -1;
+	if (!ASSERT_EQ(info.perf_event.type, type, "perf_type_match"))
+		return -1;
+
+	switch (info.perf_event.type) {
+	case BPF_PERF_EVENT_KPROBE:
+	case BPF_PERF_EVENT_KRETPROBE:
+		ASSERT_EQ(info.perf_event.kprobe.offset, offset, "kprobe_offset");
+
+		/* In case kernel.kptr_restrict is not permitted or MAX_SYMS is reached */
+		if (addr)
+			ASSERT_EQ(info.perf_event.kprobe.addr, addr + entry_offset,
+				  "kprobe_addr");
+
+		ASSERT_EQ(info.perf_event.kprobe.cookie, PERF_EVENT_COOKIE, "kprobe_cookie");
+
+		ASSERT_EQ(info.perf_event.kprobe.name_len, strlen(KPROBE_FUNC) + 1,
+				  "name_len");
+		if (!info.perf_event.kprobe.func_name) {
+			info.perf_event.kprobe.func_name = ptr_to_u64(&buf);
+			info.perf_event.kprobe.name_len = sizeof(buf);
+			goto again;
+		}
+
+		err = strncmp(u64_to_ptr(info.perf_event.kprobe.func_name), KPROBE_FUNC,
+			      strlen(KPROBE_FUNC));
+		ASSERT_EQ(err, 0, "cmp_kprobe_func_name");
+		break;
+	case BPF_PERF_EVENT_TRACEPOINT:
+		ASSERT_EQ(info.perf_event.tracepoint.name_len, strlen(TP_NAME) + 1,
+				  "name_len");
+		if (!info.perf_event.tracepoint.tp_name) {
+			info.perf_event.tracepoint.tp_name = ptr_to_u64(&buf);
+			info.perf_event.tracepoint.name_len = sizeof(buf);
+			goto again;
+		}
+
+		ASSERT_EQ(info.perf_event.tracepoint.cookie, PERF_EVENT_COOKIE, "tracepoint_cookie");
+
+		err = strncmp(u64_to_ptr(info.perf_event.tracepoint.tp_name), TP_NAME,
+			      strlen(TP_NAME));
+		ASSERT_EQ(err, 0, "cmp_tp_name");
+		break;
+	case BPF_PERF_EVENT_UPROBE:
+	case BPF_PERF_EVENT_URETPROBE:
+		ASSERT_EQ(info.perf_event.uprobe.offset, offset, "uprobe_offset");
+		ASSERT_EQ(info.perf_event.uprobe.ref_ctr_offset, ref_ctr_offset, "uprobe_ref_ctr_offset");
+
+		ASSERT_EQ(info.perf_event.uprobe.name_len, strlen(UPROBE_FILE) + 1,
+				  "name_len");
+		if (!info.perf_event.uprobe.file_name) {
+			info.perf_event.uprobe.file_name = ptr_to_u64(&buf);
+			info.perf_event.uprobe.name_len = sizeof(buf);
+			goto again;
+		}
+
+		ASSERT_EQ(info.perf_event.uprobe.cookie, PERF_EVENT_COOKIE, "uprobe_cookie");
+
+		err = strncmp(u64_to_ptr(info.perf_event.uprobe.file_name), UPROBE_FILE,
+			      strlen(UPROBE_FILE));
+			ASSERT_EQ(err, 0, "cmp_file_name");
+		break;
+	case BPF_PERF_EVENT_EVENT:
+		ASSERT_EQ(info.perf_event.event.type, PERF_TYPE_SOFTWARE, "event_type");
+		ASSERT_EQ(info.perf_event.event.config, PERF_COUNT_SW_PAGE_FAULTS, "event_config");
+		ASSERT_EQ(info.perf_event.event.cookie, PERF_EVENT_COOKIE, "event_cookie");
+		break;
+	default:
+		err = -1;
+		break;
+	}
+	return err;
+}
+
+static void kprobe_fill_invalid_user_buffer(int fd)
+{
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	int err;
+
+	memset(&info, 0, sizeof(info));
+
+	info.perf_event.kprobe.func_name = 0x1; /* invalid address */
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "invalid_buff_and_len");
+
+	info.perf_event.kprobe.name_len = 64;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EFAULT, "invalid_buff");
+
+	info.perf_event.kprobe.func_name = 0;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "invalid_len");
+
+	ASSERT_EQ(info.perf_event.kprobe.addr, 0, "func_addr");
+	ASSERT_EQ(info.perf_event.kprobe.offset, 0, "func_offset");
+	ASSERT_EQ(info.perf_event.type, 0, "type");
+}
+
+static void test_kprobe_fill_link_info(struct test_fill_link_info *skel,
+				       enum bpf_perf_event_type type,
+				       bool invalid)
+{
+	DECLARE_LIBBPF_OPTS(bpf_kprobe_opts, opts,
+		.attach_mode = PROBE_ATTACH_MODE_LINK,
+		.retprobe = type == BPF_PERF_EVENT_KRETPROBE,
+		.bpf_cookie = PERF_EVENT_COOKIE,
+	);
+	ssize_t entry_offset = 0;
+	struct bpf_link *link;
+	int link_fd, err;
+
+	link = bpf_program__attach_kprobe_opts(skel->progs.kprobe_run, KPROBE_FUNC, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_kprobe"))
+		return;
+
+	link_fd = bpf_link__fd(link);
+	if (!invalid) {
+		/* See also arch_adjust_kprobe_addr(). */
+		if (skel->kconfig->CONFIG_X86_KERNEL_IBT)
+			entry_offset = 4;
+		if (skel->kconfig->CONFIG_PPC64 &&
+		    skel->kconfig->CONFIG_KPROBES_ON_FTRACE &&
+		    !skel->kconfig->CONFIG_PPC_FTRACE_OUT_OF_LINE)
+			entry_offset = 4;
+		err = verify_perf_link_info(link_fd, type, kprobe_addr, 0, entry_offset);
+		ASSERT_OK(err, "verify_perf_link_info");
+	} else {
+		kprobe_fill_invalid_user_buffer(link_fd);
+	}
+	bpf_link__destroy(link);
+}
+
+static void test_tp_fill_link_info(struct test_fill_link_info *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tracepoint_opts, opts,
+		.bpf_cookie = PERF_EVENT_COOKIE,
+	);
+	struct bpf_link *link;
+	int link_fd, err;
+
+	link = bpf_program__attach_tracepoint_opts(skel->progs.tp_run, TP_CAT, TP_NAME, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_tp"))
+		return;
+
+	link_fd = bpf_link__fd(link);
+	err = verify_perf_link_info(link_fd, BPF_PERF_EVENT_TRACEPOINT, 0, 0, 0);
+	ASSERT_OK(err, "verify_perf_link_info");
+	bpf_link__destroy(link);
+}
+
+static void test_event_fill_link_info(struct test_fill_link_info *skel)
+{
+	DECLARE_LIBBPF_OPTS(bpf_perf_event_opts, opts,
+		.bpf_cookie = PERF_EVENT_COOKIE,
+	);
+	struct bpf_link *link;
+	int link_fd, err, pfd;
+	struct perf_event_attr attr = {
+		.type = PERF_TYPE_SOFTWARE,
+		.config = PERF_COUNT_SW_PAGE_FAULTS,
+		.freq = 1,
+		.sample_freq = 1,
+		.size = sizeof(struct perf_event_attr),
+	};
+
+	pfd = syscall(__NR_perf_event_open, &attr, -1 /* pid */, 0 /* cpu 0 */,
+		      -1 /* group id */, 0 /* flags */);
+	if (!ASSERT_GE(pfd, 0, "perf_event_open"))
+		return;
+
+	link = bpf_program__attach_perf_event_opts(skel->progs.event_run, pfd, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_event"))
+		goto error;
+
+	link_fd = bpf_link__fd(link);
+	err = verify_perf_link_info(link_fd, BPF_PERF_EVENT_EVENT, 0, 0, 0);
+	ASSERT_OK(err, "verify_perf_link_info");
+	bpf_link__destroy(link);
+
+error:
+	close(pfd);
+}
+
+static void test_uprobe_fill_link_info(struct test_fill_link_info *skel,
+				       enum bpf_perf_event_type type)
+{
+	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, opts,
+		.retprobe = type == BPF_PERF_EVENT_URETPROBE,
+		.bpf_cookie = PERF_EVENT_COOKIE,
+	);
+	const char *sema[1] = {
+		"uprobe_link_info_sema_1",
+	};
+	__u64 *ref_ctr_offset;
+	struct bpf_link *link;
+	int link_fd, err;
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 1, sema,
+				       (unsigned long **) &ref_ctr_offset, STT_OBJECT);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_object"))
+		return;
+
+	opts.ref_ctr_offset = *ref_ctr_offset;
+	link = bpf_program__attach_uprobe_opts(skel->progs.uprobe_run,
+					       0, /* self pid */
+					       UPROBE_FILE, uprobe_offset,
+					       &opts);
+	if (!ASSERT_OK_PTR(link, "attach_uprobe"))
+		goto out;
+
+	link_fd = bpf_link__fd(link);
+	err = verify_perf_link_info(link_fd, type, 0, uprobe_offset, *ref_ctr_offset);
+	ASSERT_OK(err, "verify_perf_link_info");
+	bpf_link__destroy(link);
+out:
+	free(ref_ctr_offset);
+}
+
+static int verify_kmulti_link_info(int fd, bool retprobe, bool has_cookies)
+{
+	__u64 addrs[KMULTI_CNT], cookies[KMULTI_CNT];
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	int flags, i, err;
+
+	memset(&info, 0, sizeof(info));
+
+again:
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "get_link_info"))
+		return -1;
+
+	if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_KPROBE_MULTI, "kmulti_type"))
+		return -1;
+
+	ASSERT_EQ(info.kprobe_multi.count, KMULTI_CNT, "func_cnt");
+	flags = info.kprobe_multi.flags & BPF_F_KPROBE_MULTI_RETURN;
+	if (!retprobe)
+		ASSERT_EQ(flags, 0, "kmulti_flags");
+	else
+		ASSERT_NEQ(flags, 0, "kretmulti_flags");
+
+	if (!info.kprobe_multi.addrs) {
+		info.kprobe_multi.addrs = ptr_to_u64(addrs);
+		info.kprobe_multi.cookies = ptr_to_u64(cookies);
+		goto again;
+	}
+	for (i = 0; i < KMULTI_CNT; i++) {
+		ASSERT_EQ(addrs[i], kmulti_addrs[i], "kmulti_addrs");
+		ASSERT_EQ(cookies[i], has_cookies ? kmulti_cookies[i] : 0,
+			  "kmulti_cookies_value");
+	}
+	return 0;
+}
+
+static void verify_kmulti_invalid_user_buffer(int fd)
+{
+	__u64 addrs[KMULTI_CNT], cookies[KMULTI_CNT];
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	int err, i;
+
+	memset(&info, 0, sizeof(info));
+
+	info.kprobe_multi.count = KMULTI_CNT;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "no_addr");
+
+	info.kprobe_multi.addrs = ptr_to_u64(addrs);
+	info.kprobe_multi.count = 0;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "no_cnt");
+
+	for (i = 0; i < KMULTI_CNT; i++)
+		addrs[i] = 0;
+	info.kprobe_multi.count = KMULTI_CNT - 1;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -ENOSPC, "smaller_cnt");
+	for (i = 0; i < KMULTI_CNT - 1; i++)
+		ASSERT_EQ(addrs[i], kmulti_addrs[i], "kmulti_addrs");
+	ASSERT_EQ(addrs[i], 0, "kmulti_addrs");
+
+	for (i = 0; i < KMULTI_CNT; i++)
+		addrs[i] = 0;
+	info.kprobe_multi.count = KMULTI_CNT + 1;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, 0, "bigger_cnt");
+	for (i = 0; i < KMULTI_CNT; i++)
+		ASSERT_EQ(addrs[i], kmulti_addrs[i], "kmulti_addrs");
+
+	info.kprobe_multi.count = KMULTI_CNT;
+	info.kprobe_multi.addrs = 0x1; /* invalid addr */
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EFAULT, "invalid_buff_addrs");
+
+	info.kprobe_multi.count = KMULTI_CNT;
+	info.kprobe_multi.addrs = ptr_to_u64(addrs);
+	info.kprobe_multi.cookies = 0x1; /* invalid addr */
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EFAULT, "invalid_buff_cookies");
+
+	/* cookies && !count */
+	info.kprobe_multi.count = 0;
+	info.kprobe_multi.addrs = ptr_to_u64(NULL);
+	info.kprobe_multi.cookies = ptr_to_u64(cookies);
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "invalid_cookies_count");
+}
+
+static int symbols_cmp_r(const void *a, const void *b)
+{
+	const char **str_a = (const char **) a;
+	const char **str_b = (const char **) b;
+
+	return strcmp(*str_a, *str_b);
+}
+
+static void test_kprobe_multi_fill_link_info(struct test_fill_link_info *skel,
+					     bool retprobe, bool cookies,
+					     bool invalid)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct bpf_link *link;
+	int link_fd, err;
+
+	opts.syms = kmulti_syms;
+	opts.cookies = cookies ? kmulti_cookies : NULL;
+	opts.cnt = KMULTI_CNT;
+	opts.retprobe = retprobe;
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.kmulti_run, NULL, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_kprobe_multi"))
+		return;
+
+	link_fd = bpf_link__fd(link);
+	if (!invalid) {
+		err = verify_kmulti_link_info(link_fd, retprobe, cookies);
+		ASSERT_OK(err, "verify_kmulti_link_info");
+	} else {
+		verify_kmulti_invalid_user_buffer(link_fd);
+	}
+	bpf_link__destroy(link);
+}
+
+#define SEC(name) __attribute__((section(name), used))
+
+static short uprobe_link_info_sema_1 SEC(".probes");
+static short uprobe_link_info_sema_2 SEC(".probes");
+static short uprobe_link_info_sema_3 SEC(".probes");
+
+noinline void uprobe_link_info_func_1(void)
+{
+	asm volatile ("");
+	uprobe_link_info_sema_1++;
+}
+
+noinline void uprobe_link_info_func_2(void)
+{
+	asm volatile ("");
+	uprobe_link_info_sema_2++;
+}
+
+noinline void uprobe_link_info_func_3(void)
+{
+	asm volatile ("");
+	uprobe_link_info_sema_3++;
+}
+
+static int
+verify_umulti_link_info(int fd, bool retprobe, __u64 *offsets,
+			__u64 *cookies, __u64 *ref_ctr_offsets)
+{
+	char path[PATH_MAX], path_buf[PATH_MAX];
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	__u64 ref_ctr_offsets_buf[3];
+	__u64 offsets_buf[3];
+	__u64 cookies_buf[3];
+	int i, err, bit;
+	__u32 count = 0;
+
+	memset(path, 0, sizeof(path));
+	err = readlink("/proc/self/exe", path, sizeof(path));
+	if (!ASSERT_NEQ(err, -1, "readlink"))
+		return -1;
+
+	memset(&info, 0, sizeof(info));
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_link_get_info_by_fd"))
+		return -1;
+
+	ASSERT_EQ(info.uprobe_multi.count, 3, "info.uprobe_multi.count");
+	ASSERT_EQ(info.uprobe_multi.path_size, strlen(path) + 1,
+		  "info.uprobe_multi.path_size");
+
+	for (bit = 0; bit < 8; bit++) {
+		memset(&info, 0, sizeof(info));
+		info.uprobe_multi.path = ptr_to_u64(path_buf);
+		info.uprobe_multi.path_size = sizeof(path_buf);
+		info.uprobe_multi.count = count;
+
+		if (bit & 0x1)
+			info.uprobe_multi.offsets = ptr_to_u64(offsets_buf);
+		if (bit & 0x2)
+			info.uprobe_multi.cookies = ptr_to_u64(cookies_buf);
+		if (bit & 0x4)
+			info.uprobe_multi.ref_ctr_offsets = ptr_to_u64(ref_ctr_offsets_buf);
+
+		err = bpf_link_get_info_by_fd(fd, &info, &len);
+		if (!ASSERT_OK(err, "bpf_link_get_info_by_fd"))
+			return -1;
+
+		if (!ASSERT_EQ(info.type, BPF_LINK_TYPE_UPROBE_MULTI, "info.type"))
+			return -1;
+
+		ASSERT_EQ(info.uprobe_multi.pid, getpid(), "info.uprobe_multi.pid");
+		ASSERT_EQ(info.uprobe_multi.count, 3, "info.uprobe_multi.count");
+		ASSERT_EQ(info.uprobe_multi.flags & BPF_F_KPROBE_MULTI_RETURN,
+			  retprobe, "info.uprobe_multi.flags.retprobe");
+		ASSERT_EQ(info.uprobe_multi.path_size, strlen(path) + 1, "info.uprobe_multi.path_size");
+		ASSERT_STREQ(path_buf, path, "info.uprobe_multi.path");
+
+		for (i = 0; i < info.uprobe_multi.count; i++) {
+			if (info.uprobe_multi.offsets)
+				ASSERT_EQ(offsets_buf[i], offsets[i], "info.uprobe_multi.offsets");
+			if (info.uprobe_multi.cookies)
+				ASSERT_EQ(cookies_buf[i], cookies[i], "info.uprobe_multi.cookies");
+			if (info.uprobe_multi.ref_ctr_offsets) {
+				ASSERT_EQ(ref_ctr_offsets_buf[i], ref_ctr_offsets[i],
+					  "info.uprobe_multi.ref_ctr_offsets");
+			}
+		}
+		count = count ?: info.uprobe_multi.count;
+	}
+
+	return 0;
+}
+
+static void verify_umulti_invalid_user_buffer(int fd)
+{
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	__u64 buf[3];
+	int err;
+
+	/* upath_size defined, not path */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.path_size = 3;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "failed_upath_size");
+
+	/* path defined, but small */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.path = ptr_to_u64(buf);
+	info.uprobe_multi.path_size = 3;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_LT(err, 0, "failed_upath_small");
+
+	/* path has wrong pointer */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.path_size = PATH_MAX;
+	info.uprobe_multi.path = 123;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EFAULT, "failed_bad_path_ptr");
+
+	/* count zero, with offsets */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.offsets = ptr_to_u64(buf);
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EINVAL, "failed_count");
+
+	/* offsets not big enough */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.offsets = ptr_to_u64(buf);
+	info.uprobe_multi.count = 2;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -ENOSPC, "failed_small_count");
+
+	/* offsets has wrong pointer */
+	memset(&info, 0, sizeof(info));
+	info.uprobe_multi.offsets = 123;
+	info.uprobe_multi.count = 3;
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_EQ(err, -EFAULT, "failed_wrong_offsets");
+}
+
+static void test_uprobe_multi_fill_link_info(struct test_fill_link_info *skel,
+					     bool retprobe, bool invalid)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts,
+		.retprobe = retprobe,
+	);
+	const char *syms[3] = {
+		"uprobe_link_info_func_1",
+		"uprobe_link_info_func_2",
+		"uprobe_link_info_func_3",
+	};
+	__u64 cookies[3] = {
+		0xdead,
+		0xbeef,
+		0xcafe,
+	};
+	const char *sema[3] = {
+		"uprobe_link_info_sema_1",
+		"uprobe_link_info_sema_2",
+		"uprobe_link_info_sema_3",
+	};
+	__u64 *offsets = NULL, *ref_ctr_offsets;
+	struct bpf_link *link;
+	int link_fd, err;
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 3, sema,
+				       (unsigned long **) &ref_ctr_offsets, STT_OBJECT);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_object"))
+		return;
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 3, syms,
+				       (unsigned long **) &offsets, STT_FUNC);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_func"))
+		goto out;
+
+	opts.syms = syms;
+	opts.cookies = &cookies[0];
+	opts.ref_ctr_offsets = (unsigned long *) &ref_ctr_offsets[0];
+	opts.cnt = ARRAY_SIZE(syms);
+
+	link = bpf_program__attach_uprobe_multi(skel->progs.umulti_run, 0,
+						"/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_multi"))
+		goto out;
+
+	link_fd = bpf_link__fd(link);
+	if (invalid)
+		verify_umulti_invalid_user_buffer(link_fd);
+	else
+		verify_umulti_link_info(link_fd, retprobe, offsets, cookies, ref_ctr_offsets);
+
+	bpf_link__destroy(link);
+out:
+	free(ref_ctr_offsets);
+	free(offsets);
+}
+
+void test_fill_link_info(void)
+{
+	struct test_fill_link_info *skel;
+	int i;
+
+	skel = test_fill_link_info__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	/* load kallsyms to compare the addr */
+	if (!ASSERT_OK(load_kallsyms(), "load_kallsyms"))
+		goto cleanup;
+
+	kprobe_addr = ksym_get_addr(KPROBE_FUNC);
+	if (test__start_subtest("kprobe_link_info"))
+		test_kprobe_fill_link_info(skel, BPF_PERF_EVENT_KPROBE, false);
+	if (test__start_subtest("kretprobe_link_info"))
+		test_kprobe_fill_link_info(skel, BPF_PERF_EVENT_KRETPROBE, false);
+	if (test__start_subtest("kprobe_invalid_ubuff"))
+		test_kprobe_fill_link_info(skel, BPF_PERF_EVENT_KPROBE, true);
+	if (test__start_subtest("tracepoint_link_info"))
+		test_tp_fill_link_info(skel);
+	if (test__start_subtest("event_link_info"))
+		test_event_fill_link_info(skel);
+
+	uprobe_offset = get_uprobe_offset(&uprobe_func);
+	if (test__start_subtest("uprobe_link_info"))
+		test_uprobe_fill_link_info(skel, BPF_PERF_EVENT_UPROBE);
+	if (test__start_subtest("uretprobe_link_info"))
+		test_uprobe_fill_link_info(skel, BPF_PERF_EVENT_URETPROBE);
+
+	qsort(kmulti_syms, KMULTI_CNT, sizeof(kmulti_syms[0]), symbols_cmp_r);
+	for (i = 0; i < KMULTI_CNT; i++)
+		kmulti_addrs[i] = ksym_get_addr(kmulti_syms[i]);
+	if (test__start_subtest("kprobe_multi_link_info")) {
+		test_kprobe_multi_fill_link_info(skel, false, false, false);
+		test_kprobe_multi_fill_link_info(skel, false, true, false);
+	}
+	if (test__start_subtest("kretprobe_multi_link_info")) {
+		test_kprobe_multi_fill_link_info(skel, true, false, false);
+		test_kprobe_multi_fill_link_info(skel, true, true, false);
+	}
+	if (test__start_subtest("kprobe_multi_invalid_ubuff"))
+		test_kprobe_multi_fill_link_info(skel, true, true, true);
+
+	if (test__start_subtest("uprobe_multi_link_info"))
+		test_uprobe_multi_fill_link_info(skel, false, false);
+	if (test__start_subtest("uretprobe_multi_link_info"))
+		test_uprobe_multi_fill_link_info(skel, true, false);
+	if (test__start_subtest("uprobe_multi_invalid"))
+		test_uprobe_multi_fill_link_info(skel, false, true);
+
+cleanup:
+	test_fill_link_info__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/find_vma.c b/tools/testing/selftests/bpf/prog_tests/find_vma.c
new file mode 100644
index 000000000000..f7619e0ade10
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/find_vma.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "find_vma.skel.h"
+#include "find_vma_fail1.skel.h"
+#include "find_vma_fail2.skel.h"
+
+static void test_and_reset_skel(struct find_vma *skel, int expected_find_zero_ret, bool need_test)
+{
+	if (need_test) {
+		ASSERT_EQ(skel->bss->found_vm_exec, 1, "found_vm_exec");
+		ASSERT_EQ(skel->data->find_addr_ret, 0, "find_addr_ret");
+		ASSERT_EQ(skel->data->find_zero_ret, expected_find_zero_ret, "find_zero_ret");
+		ASSERT_OK_PTR(strstr(skel->bss->d_iname, "test_progs"), "find_test_progs");
+	}
+
+	skel->bss->found_vm_exec = 0;
+	skel->data->find_addr_ret = -1;
+	skel->data->find_zero_ret = -1;
+	skel->bss->d_iname[0] = 0;
+}
+
+static int open_pe(void)
+{
+	struct perf_event_attr attr = {0};
+	int pfd;
+
+	/* create perf event */
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.freq = 1;
+	attr.sample_freq = 1000;
+	pfd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, PERF_FLAG_FD_CLOEXEC);
+
+	return pfd >= 0 ? pfd : -errno;
+}
+
+static bool find_vma_pe_condition(struct find_vma *skel)
+{
+	return skel->bss->found_vm_exec == 0 ||
+		skel->data->find_addr_ret != 0 ||
+		skel->data->find_zero_ret == -1 ||
+		strcmp(skel->bss->d_iname, "test_progs") != 0;
+}
+
+static void test_find_vma_pe(struct find_vma *skel)
+{
+	struct bpf_link *link = NULL;
+	volatile int j = 0;
+	int pfd, i;
+	const int one_bn = 1000000000;
+
+	pfd = open_pe();
+	if (pfd < 0) {
+		if (pfd == -ENOENT || pfd == -EOPNOTSUPP) {
+			printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__);
+			test__skip();
+			goto cleanup;
+		}
+		if (!ASSERT_GE(pfd, 0, "perf_event_open"))
+			goto cleanup;
+	}
+
+	link = bpf_program__attach_perf_event(skel->progs.handle_pe, pfd);
+	if (!ASSERT_OK_PTR(link, "attach_perf_event"))
+		goto cleanup;
+
+	for (i = 0; i < one_bn && find_vma_pe_condition(skel); ++i)
+		++j;
+
+	test_and_reset_skel(skel, -EBUSY /* in nmi, irq_work is busy */, i == one_bn);
+cleanup:
+	bpf_link__destroy(link);
+	close(pfd);
+}
+
+static void test_find_vma_kprobe(struct find_vma *skel)
+{
+	int err;
+
+	err = find_vma__attach(skel);
+	if (!ASSERT_OK(err, "get_branch_snapshot__attach"))
+		return;
+
+	getpgid(skel->bss->target_pid);
+	test_and_reset_skel(skel, -ENOENT /* could not find vma for ptr 0 */, true);
+}
+
+static void test_illegal_write_vma(void)
+{
+	struct find_vma_fail1 *skel;
+
+	skel = find_vma_fail1__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "find_vma_fail1__open_and_load"))
+		find_vma_fail1__destroy(skel);
+}
+
+static void test_illegal_write_task(void)
+{
+	struct find_vma_fail2 *skel;
+
+	skel = find_vma_fail2__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "find_vma_fail2__open_and_load"))
+		find_vma_fail2__destroy(skel);
+}
+
+void serial_test_find_vma(void)
+{
+	struct find_vma *skel;
+
+	skel = find_vma__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "find_vma__open_and_load"))
+		return;
+
+	skel->bss->target_pid = getpid();
+	skel->bss->addr = (__u64)(uintptr_t)test_find_vma_pe;
+
+	test_find_vma_pe(skel);
+	test_find_vma_kprobe(skel);
+
+	find_vma__destroy(skel);
+	test_illegal_write_vma();
+	test_illegal_write_task();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
new file mode 100644
index 000000000000..08bae13248c4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector.c
@@ -0,0 +1,854 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <linux/if_tun.h>
+#include <sys/uio.h>
+
+#include "bpf_flow.skel.h"
+
+#define TEST_NS	"flow_dissector_ns"
+#define FLOW_CONTINUE_SADDR 0x7f00007f /* 127.0.0.127 */
+#define TEST_NAME_MAX_LEN	64
+
+#ifndef IP_MF
+#define IP_MF 0x2000
+#endif
+
+struct ipv4_pkt {
+	struct ethhdr eth;
+	struct iphdr iph;
+	struct tcphdr tcp;
+} __packed;
+
+struct ipip_pkt {
+	struct ethhdr eth;
+	struct iphdr iph;
+	struct iphdr iph_inner;
+	struct tcphdr tcp;
+} __packed;
+
+struct svlan_ipv4_pkt {
+	struct ethhdr eth;
+	__u16 vlan_tci;
+	__u16 vlan_proto;
+	struct iphdr iph;
+	struct tcphdr tcp;
+} __packed;
+
+struct ipv6_pkt {
+	struct ethhdr eth;
+	struct ipv6hdr iph;
+	struct tcphdr tcp;
+} __packed;
+
+struct ipv6_frag_pkt {
+	struct ethhdr eth;
+	struct ipv6hdr iph;
+	struct frag_hdr {
+		__u8 nexthdr;
+		__u8 reserved;
+		__be16 frag_off;
+		__be32 identification;
+	} ipf;
+	struct tcphdr tcp;
+} __packed;
+
+struct dvlan_ipv6_pkt {
+	struct ethhdr eth;
+	__u16 vlan_tci;
+	__u16 vlan_proto;
+	__u16 vlan_tci2;
+	__u16 vlan_proto2;
+	struct ipv6hdr iph;
+	struct tcphdr tcp;
+} __packed;
+
+struct gre_base_hdr {
+	__be16 flags;
+	__be16 protocol;
+} gre_base_hdr;
+
+struct gre_minimal_pkt {
+	struct ethhdr eth;
+	struct iphdr iph;
+	struct gre_base_hdr gre_hdr;
+	struct iphdr iph_inner;
+	struct tcphdr tcp;
+} __packed;
+
+struct test {
+	const char *name;
+	union {
+		struct ipv4_pkt ipv4;
+		struct svlan_ipv4_pkt svlan_ipv4;
+		struct ipip_pkt ipip;
+		struct ipv6_pkt ipv6;
+		struct ipv6_frag_pkt ipv6_frag;
+		struct dvlan_ipv6_pkt dvlan_ipv6;
+		struct gre_minimal_pkt gre_minimal;
+	} pkt;
+	struct bpf_flow_keys keys;
+	__u32 flags;
+	__u32 retval;
+};
+
+#define VLAN_HLEN	4
+
+struct test tests[] = {
+	{
+		.name = "ipv4",
+		.pkt.ipv4 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_TCP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6",
+		.pkt.ipv6 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_TCP,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "802.1q-ipv4",
+		.pkt.svlan_ipv4 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_8021Q),
+			.vlan_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_TCP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN + VLAN_HLEN,
+			.thoff = ETH_HLEN + VLAN_HLEN + sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "802.1ad-ipv6",
+		.pkt.dvlan_ipv6 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_8021AD),
+			.vlan_proto = __bpf_constant_htons(ETH_P_8021Q),
+			.vlan_proto2 = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_TCP,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN + VLAN_HLEN * 2,
+			.thoff = ETH_HLEN + VLAN_HLEN * 2 +
+				sizeof(struct ipv6hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv4-frag",
+		.pkt.ipv4 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_TCP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.frag_off = __bpf_constant_htons(IP_MF),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_frag = true,
+			.is_first_frag = true,
+			.sport = 80,
+			.dport = 8080,
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG,
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv4-no-frag",
+		.pkt.ipv4 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_TCP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.frag_off = __bpf_constant_htons(IP_MF),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_frag = true,
+			.is_first_frag = true,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6-frag",
+		.pkt.ipv6_frag = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_FRAGMENT,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.ipf.nexthdr = IPPROTO_TCP,
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr) +
+				sizeof(struct frag_hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.is_frag = true,
+			.is_first_frag = true,
+			.sport = 80,
+			.dport = 8080,
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG,
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6-no-frag",
+		.pkt.ipv6_frag = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_FRAGMENT,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.ipf.nexthdr = IPPROTO_TCP,
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr) +
+				sizeof(struct frag_hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.is_frag = true,
+			.is_first_frag = true,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6-flow-label",
+		.pkt.ipv6 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_TCP,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.flow_lbl = { 0xb, 0xee, 0xef },
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.sport = 80,
+			.dport = 8080,
+			.flow_label = __bpf_constant_htonl(0xbeeef),
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6-no-flow-label",
+		.pkt.ipv6 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_TCP,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.flow_lbl = { 0xb, 0xee, 0xef },
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.flow_label = __bpf_constant_htonl(0xbeeef),
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL,
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipv6-empty-flow-label",
+		.pkt.ipv6 = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.iph.nexthdr = IPPROTO_TCP,
+			.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.flow_lbl = { 0x00, 0x00, 0x00 },
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct ipv6hdr),
+			.addr_proto = ETH_P_IPV6,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IPV6),
+			.sport = 80,
+			.dport = 8080,
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL,
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipip-encap",
+		.pkt.ipip = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_IPIP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph_inner.ihl = 5,
+			.iph_inner.protocol = IPPROTO_TCP,
+			.iph_inner.tot_len =
+				__bpf_constant_htons(MAGIC_BYTES -
+				sizeof(struct iphdr)),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr) +
+				sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_encap = true,
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipip-no-encap",
+		.pkt.ipip = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_IPIP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph_inner.ihl = 5,
+			.iph_inner.protocol = IPPROTO_TCP,
+			.iph_inner.tot_len =
+				__bpf_constant_htons(MAGIC_BYTES -
+				sizeof(struct iphdr)),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_IPIP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_encap = true,
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP,
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ipip-encap-dissector-continue",
+		.pkt.ipip = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_IPIP,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph.saddr = __bpf_constant_htonl(FLOW_CONTINUE_SADDR),
+			.iph_inner.ihl = 5,
+			.iph_inner.protocol = IPPROTO_TCP,
+			.iph_inner.tot_len =
+				__bpf_constant_htons(MAGIC_BYTES -
+				sizeof(struct iphdr)),
+			.tcp.doff = 5,
+			.tcp.source = 99,
+			.tcp.dest = 9090,
+		},
+		.retval = BPF_FLOW_DISSECTOR_CONTINUE,
+	},
+	{
+		.name = "ip-gre",
+		.pkt.gre_minimal = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_GRE,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.gre_hdr = {
+				.flags = 0,
+				.protocol = __bpf_constant_htons(ETH_P_IP),
+			},
+			.iph_inner.ihl = 5,
+			.iph_inner.protocol = IPPROTO_TCP,
+			.iph_inner.tot_len =
+				__bpf_constant_htons(MAGIC_BYTES -
+				sizeof(struct iphdr)),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr) * 2 +
+				 sizeof(struct gre_base_hdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_TCP,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_encap = true,
+			.sport = 80,
+			.dport = 8080,
+		},
+		.retval = BPF_OK,
+	},
+	{
+		.name = "ip-gre-no-encap",
+		.pkt.ipip = {
+			.eth.h_proto = __bpf_constant_htons(ETH_P_IP),
+			.iph.ihl = 5,
+			.iph.protocol = IPPROTO_GRE,
+			.iph.tot_len = __bpf_constant_htons(MAGIC_BYTES),
+			.iph_inner.ihl = 5,
+			.iph_inner.protocol = IPPROTO_TCP,
+			.iph_inner.tot_len =
+				__bpf_constant_htons(MAGIC_BYTES -
+				sizeof(struct iphdr)),
+			.tcp.doff = 5,
+			.tcp.source = 80,
+			.tcp.dest = 8080,
+		},
+		.keys = {
+			.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP,
+			.nhoff = ETH_HLEN,
+			.thoff = ETH_HLEN + sizeof(struct iphdr)
+				 + sizeof(struct gre_base_hdr),
+			.addr_proto = ETH_P_IP,
+			.ip_proto = IPPROTO_GRE,
+			.n_proto = __bpf_constant_htons(ETH_P_IP),
+			.is_encap = true,
+		},
+		.flags = BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP,
+		.retval = BPF_OK,
+	},
+};
+
+void serial_test_flow_dissector_namespace(void)
+{
+	struct bpf_flow *skel;
+	struct nstoken *ns;
+	int err, prog_fd;
+
+	skel = bpf_flow__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open/load skeleton"))
+		return;
+
+	prog_fd = bpf_program__fd(skel->progs._dissect);
+	if (!ASSERT_OK_FD(prog_fd, "get dissector fd"))
+		goto out_destroy_skel;
+
+	/* We must be able to attach a flow dissector to root namespace */
+	err = bpf_prog_attach(prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	if (!ASSERT_OK(err, "attach on root namespace ok"))
+		goto out_destroy_skel;
+
+	err = make_netns(TEST_NS);
+	if (!ASSERT_OK(err, "create non-root net namespace"))
+		goto out_destroy_skel;
+
+	/* We must not be able to additionally attach a flow dissector to a
+	 * non-root net namespace
+	 */
+	ns = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(ns, "enter non-root net namespace"))
+		goto out_clean_ns;
+	err = bpf_prog_attach(prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	if (!ASSERT_ERR(err,
+			"refuse new flow dissector in non-root net namespace"))
+		bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+	else
+		ASSERT_EQ(errno, EEXIST,
+			  "refused because of already attached prog");
+	close_netns(ns);
+
+	/* If no flow dissector is attached to the root namespace, we must
+	 * be able to attach one to a non-root net namespace
+	 */
+	bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+	ns = open_netns(TEST_NS);
+	ASSERT_OK_PTR(ns, "enter non-root net namespace");
+	err = bpf_prog_attach(prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	close_netns(ns);
+	ASSERT_OK(err, "accept new flow dissector in non-root net namespace");
+
+	/* If a flow dissector is attached to non-root net namespace, attaching
+	 * a flow dissector to root namespace must fail
+	 */
+	err = bpf_prog_attach(prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	if (!ASSERT_ERR(err, "refuse new flow dissector on root namespace"))
+		bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+	else
+		ASSERT_EQ(errno, EEXIST,
+			  "refused because of already attached prog");
+
+	ns = open_netns(TEST_NS);
+	bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+	close_netns(ns);
+out_clean_ns:
+	remove_netns(TEST_NS);
+out_destroy_skel:
+	bpf_flow__destroy(skel);
+}
+
+static int create_tap(const char *ifname)
+{
+	struct ifreq ifr = {
+		.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_NAPI | IFF_NAPI_FRAGS,
+	};
+	int fd, ret;
+
+	strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+
+	fd = open("/dev/net/tun", O_RDWR);
+	if (fd < 0)
+		return -1;
+
+	ret = ioctl(fd, TUNSETIFF, &ifr);
+	if (ret)
+		return -1;
+
+	return fd;
+}
+
+static int tx_tap(int fd, void *pkt, size_t len)
+{
+	struct iovec iov[] = {
+		{
+			.iov_len = len,
+			.iov_base = pkt,
+		},
+	};
+	return writev(fd, iov, ARRAY_SIZE(iov));
+}
+
+static int ifup(const char *ifname)
+{
+	struct ifreq ifr = {};
+	int sk, ret;
+
+	strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+
+	sk = socket(PF_INET, SOCK_DGRAM, 0);
+	if (sk < 0)
+		return -1;
+
+	ret = ioctl(sk, SIOCGIFFLAGS, &ifr);
+	if (ret) {
+		close(sk);
+		return -1;
+	}
+
+	ifr.ifr_flags |= IFF_UP;
+	ret = ioctl(sk, SIOCSIFFLAGS, &ifr);
+	if (ret) {
+		close(sk);
+		return -1;
+	}
+
+	close(sk);
+	return 0;
+}
+
+static int init_prog_array(struct bpf_object *obj, struct bpf_map *prog_array)
+{
+	int i, err, map_fd, prog_fd;
+	struct bpf_program *prog;
+	char prog_name[32];
+
+	map_fd = bpf_map__fd(prog_array);
+	if (map_fd < 0)
+		return -1;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "flow_dissector_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (!prog)
+			return -1;
+
+		prog_fd = bpf_program__fd(prog);
+		if (prog_fd < 0)
+			return -1;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (err)
+			return -1;
+	}
+	return 0;
+}
+
+static void run_tests_skb_less(int tap_fd, struct bpf_map *keys,
+			       char *test_suffix)
+{
+	char test_name[TEST_NAME_MAX_LEN];
+	int i, err, keys_fd;
+
+	keys_fd = bpf_map__fd(keys);
+	if (!ASSERT_OK_FD(keys_fd, "bpf_map__fd"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		/* Keep in sync with 'flags' from eth_get_headlen. */
+		__u32 eth_get_headlen_flags =
+			BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG;
+		struct bpf_flow_keys flow_keys = {};
+		__u32 key = (__u32)(tests[i].keys.sport) << 16 |
+			    tests[i].keys.dport;
+		snprintf(test_name, TEST_NAME_MAX_LEN, "%s-%s", tests[i].name,
+			 test_suffix);
+		if (!test__start_subtest(test_name))
+			continue;
+
+		/* For skb-less case we can't pass input flags; run
+		 * only the tests that have a matching set of flags.
+		 */
+
+		if (tests[i].flags != eth_get_headlen_flags)
+			continue;
+
+		err = tx_tap(tap_fd, &tests[i].pkt, sizeof(tests[i].pkt));
+		if (!ASSERT_EQ(err, sizeof(tests[i].pkt), "tx_tap"))
+			continue;
+
+		/* check the stored flow_keys only if BPF_OK expected */
+		if (tests[i].retval != BPF_OK)
+			continue;
+
+		err = bpf_map_lookup_elem(keys_fd, &key, &flow_keys);
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+			continue;
+
+		ASSERT_MEMEQ(&flow_keys, &tests[i].keys,
+			     sizeof(struct bpf_flow_keys),
+			     "returned flow keys");
+
+		err = bpf_map_delete_elem(keys_fd, &key);
+		ASSERT_OK(err, "bpf_map_delete_elem");
+	}
+}
+
+void test_flow_dissector_skb_less_direct_attach(void)
+{
+	int err, prog_fd, tap_fd;
+	struct bpf_flow *skel;
+	struct netns_obj *ns;
+
+	ns = netns_new("flow_dissector_skb_less_indirect_attach_ns", true);
+	if (!ASSERT_OK_PTR(ns, "create and open netns"))
+		return;
+
+	skel = bpf_flow__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open/load skeleton"))
+		goto out_clean_ns;
+
+	err = init_prog_array(skel->obj, skel->maps.jmp_table);
+	if (!ASSERT_OK(err, "init_prog_array"))
+		goto out_destroy_skel;
+
+	prog_fd = bpf_program__fd(skel->progs._dissect);
+	if (!ASSERT_OK_FD(prog_fd, "bpf_program__fd"))
+		goto out_destroy_skel;
+
+	err = bpf_prog_attach(prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out_destroy_skel;
+
+	tap_fd = create_tap("tap0");
+	if (!ASSERT_OK_FD(tap_fd, "create_tap"))
+		goto out_destroy_skel;
+	err = ifup("tap0");
+	if (!ASSERT_OK(err, "ifup"))
+		goto out_close_tap;
+
+	run_tests_skb_less(tap_fd, skel->maps.last_dissection,
+			   "non-skb-direct-attach");
+
+	err = bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+	ASSERT_OK(err, "bpf_prog_detach2");
+
+out_close_tap:
+	close(tap_fd);
+out_destroy_skel:
+	bpf_flow__destroy(skel);
+out_clean_ns:
+	netns_free(ns);
+}
+
+void test_flow_dissector_skb_less_indirect_attach(void)
+{
+	int err, net_fd, tap_fd;
+	struct bpf_flow *skel;
+	struct bpf_link *link;
+	struct netns_obj *ns;
+
+	ns = netns_new("flow_dissector_skb_less_indirect_attach_ns", true);
+	if (!ASSERT_OK_PTR(ns, "create and open netns"))
+		return;
+
+	skel = bpf_flow__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open/load skeleton"))
+		goto out_clean_ns;
+
+	net_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (!ASSERT_OK_FD(net_fd, "open(/proc/self/ns/net"))
+		goto out_destroy_skel;
+
+	err = init_prog_array(skel->obj, skel->maps.jmp_table);
+	if (!ASSERT_OK(err, "init_prog_array"))
+		goto out_destroy_skel;
+
+	tap_fd = create_tap("tap0");
+	if (!ASSERT_OK_FD(tap_fd, "create_tap"))
+		goto out_close_ns;
+	err = ifup("tap0");
+	if (!ASSERT_OK(err, "ifup"))
+		goto out_close_tap;
+
+	link = bpf_program__attach_netns(skel->progs._dissect, net_fd);
+	if (!ASSERT_OK_PTR(link, "attach_netns"))
+		goto out_close_tap;
+
+	run_tests_skb_less(tap_fd, skel->maps.last_dissection,
+			   "non-skb-indirect-attach");
+
+	err = bpf_link__destroy(link);
+	ASSERT_OK(err, "bpf_link__destroy");
+
+out_close_tap:
+	close(tap_fd);
+out_close_ns:
+	close(net_fd);
+out_destroy_skel:
+	bpf_flow__destroy(skel);
+out_clean_ns:
+	netns_free(ns);
+}
+
+void test_flow_dissector_skb(void)
+{
+	char test_name[TEST_NAME_MAX_LEN];
+	struct bpf_flow *skel;
+	int i, err, prog_fd;
+
+	skel = bpf_flow__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open/load skeleton"))
+		return;
+
+	err = init_prog_array(skel->obj, skel->maps.jmp_table);
+	if (!ASSERT_OK(err, "init_prog_array"))
+		goto out_destroy_skel;
+
+	prog_fd = bpf_program__fd(skel->progs._dissect);
+	if (!ASSERT_OK_FD(prog_fd, "bpf_program__fd"))
+		goto out_destroy_skel;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		struct bpf_flow_keys flow_keys;
+		LIBBPF_OPTS(bpf_test_run_opts, topts,
+			.data_in = &tests[i].pkt,
+			.data_size_in = sizeof(tests[i].pkt),
+			.data_out = &flow_keys,
+		);
+		static struct bpf_flow_keys ctx = {};
+
+		snprintf(test_name, TEST_NAME_MAX_LEN, "%s-skb", tests[i].name);
+		if (!test__start_subtest(test_name))
+			continue;
+
+		if (tests[i].flags) {
+			topts.ctx_in = &ctx;
+			topts.ctx_size_in = sizeof(ctx);
+			ctx.flags = tests[i].flags;
+		}
+
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		ASSERT_OK(err, "test_run");
+		ASSERT_EQ(topts.retval, tests[i].retval, "test_run retval");
+
+		/* check the resulting flow_keys only if BPF_OK returned */
+		if (topts.retval != BPF_OK)
+			continue;
+		ASSERT_EQ(topts.data_size_out, sizeof(flow_keys),
+			  "test_run data_size_out");
+		ASSERT_MEMEQ(&flow_keys, &tests[i].keys,
+			     sizeof(struct bpf_flow_keys),
+			     "returned flow keys");
+	}
+
+out_destroy_skel:
+	bpf_flow__destroy(skel);
+}
+
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector_classification.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector_classification.c
new file mode 100644
index 000000000000..80b153d3ddec
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector_classification.c
@@ -0,0 +1,797 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <bpf/bpf.h>
+#include <linux/bpf.h>
+#include <bpf/libbpf.h>
+#include <arpa/inet.h>
+#include <asm/byteorder.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "bpf_util.h"
+#include "bpf_flow.skel.h"
+
+#define CFG_PORT_INNER 8000
+#define CFG_PORT_GUE 6080
+#define SUBTEST_NAME_MAX_LEN 32
+#define TEST_NAME_MAX_LEN (32 + SUBTEST_NAME_MAX_LEN)
+#define MAX_SOURCE_PORTS 3
+#define TEST_PACKETS_COUNT 10
+#define TEST_PACKET_LEN 100
+#define TEST_PACKET_PATTERN 'a'
+#define TEST_IPV4 "192.168.0.1/32"
+#define TEST_IPV6 "100::a/128"
+#define TEST_TUNNEL_REMOTE "127.0.0.2"
+#define TEST_TUNNEL_LOCAL "127.0.0.1"
+
+#define INIT_ADDR4(addr4, port)					\
+	{							\
+		.sin_family = AF_INET,				\
+		.sin_port = __constant_htons(port),		\
+		.sin_addr.s_addr = __constant_htonl(addr4),	\
+	}
+
+#define INIT_ADDR6(addr6, port)				\
+	{						\
+		.sin6_family = AF_INET6,		\
+		.sin6_port = __constant_htons(port),	\
+		.sin6_addr = addr6,			\
+	}
+#define TEST_IN4_SRC_ADDR_DEFAULT INIT_ADDR4(INADDR_LOOPBACK + 2, 0)
+#define TEST_IN4_DST_ADDR_DEFAULT INIT_ADDR4(INADDR_LOOPBACK, CFG_PORT_INNER)
+#define TEST_OUT4_SRC_ADDR_DEFAULT INIT_ADDR4(INADDR_LOOPBACK + 1, 0)
+#define TEST_OUT4_DST_ADDR_DEFAULT INIT_ADDR4(INADDR_LOOPBACK, 0)
+
+#define TEST_IN6_SRC_ADDR_DEFAULT INIT_ADDR6(IN6ADDR_LOOPBACK_INIT, 0)
+#define TEST_IN6_DST_ADDR_DEFAULT \
+	INIT_ADDR6(IN6ADDR_LOOPBACK_INIT, CFG_PORT_INNER)
+#define TEST_OUT6_SRC_ADDR_DEFAULT INIT_ADDR6(IN6ADDR_LOOPBACK_INIT, 0)
+#define TEST_OUT6_DST_ADDR_DEFAULT INIT_ADDR6(IN6ADDR_LOOPBACK_INIT, 0)
+
+#define TEST_IN4_SRC_ADDR_DISSECT_CONTINUE INIT_ADDR4(INADDR_LOOPBACK + 126, 0)
+#define TEST_IN4_SRC_ADDR_IPIP INIT_ADDR4((in_addr_t)0x01010101, 0)
+#define TEST_IN4_DST_ADDR_IPIP INIT_ADDR4((in_addr_t)0xC0A80001, CFG_PORT_INNER)
+
+struct grehdr {
+	uint16_t unused;
+	uint16_t protocol;
+} __packed;
+
+struct guehdr {
+	union {
+		struct {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+			__u8 hlen : 5, control : 1, version : 2;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+			__u8 version : 2, control : 1, hlen : 5;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+			__u8 proto_ctype;
+			__be16 flags;
+		};
+		__be32 word;
+	};
+};
+
+static char buf[ETH_DATA_LEN];
+
+struct test_configuration {
+	char name[SUBTEST_NAME_MAX_LEN];
+	int (*test_setup)(void);
+	void (*test_teardown)(void);
+	int source_ports[MAX_SOURCE_PORTS];
+	int cfg_l3_inner;
+	struct sockaddr_in in_saddr4;
+	struct sockaddr_in in_daddr4;
+	struct sockaddr_in6 in_saddr6;
+	struct sockaddr_in6 in_daddr6;
+	int cfg_l3_outer;
+	struct sockaddr_in out_saddr4;
+	struct sockaddr_in out_daddr4;
+	struct sockaddr_in6 out_saddr6;
+	struct sockaddr_in6 out_daddr6;
+	int cfg_encap_proto;
+	uint8_t cfg_dsfield_inner;
+	uint8_t cfg_dsfield_outer;
+	int cfg_l3_extra;
+	struct sockaddr_in extra_saddr4;
+	struct sockaddr_in extra_daddr4;
+	struct sockaddr_in6 extra_saddr6;
+	struct sockaddr_in6 extra_daddr6;
+};
+
+static unsigned long util_gettime(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static void build_ipv4_header(void *header, uint8_t proto, uint32_t src,
+			      uint32_t dst, int payload_len, uint8_t tos)
+{
+	struct iphdr *iph = header;
+
+	iph->ihl = 5;
+	iph->version = 4;
+	iph->tos = tos;
+	iph->ttl = 8;
+	iph->tot_len = htons(sizeof(*iph) + payload_len);
+	iph->id = htons(1337);
+	iph->protocol = proto;
+	iph->saddr = src;
+	iph->daddr = dst;
+	iph->check = build_ip_csum((void *)iph);
+}
+
+static void ipv6_set_dsfield(struct ipv6hdr *ip6h, uint8_t dsfield)
+{
+	uint16_t val, *ptr = (uint16_t *)ip6h;
+
+	val = ntohs(*ptr);
+	val &= 0xF00F;
+	val |= ((uint16_t)dsfield) << 4;
+	*ptr = htons(val);
+}
+
+static void build_ipv6_header(void *header, uint8_t proto,
+			      const struct sockaddr_in6 *src,
+			      const struct sockaddr_in6 *dst, int payload_len,
+			      uint8_t dsfield)
+{
+	struct ipv6hdr *ip6h = header;
+
+	ip6h->version = 6;
+	ip6h->payload_len = htons(payload_len);
+	ip6h->nexthdr = proto;
+	ip6h->hop_limit = 8;
+	ipv6_set_dsfield(ip6h, dsfield);
+
+	memcpy(&ip6h->saddr, &src->sin6_addr, sizeof(ip6h->saddr));
+	memcpy(&ip6h->daddr, &dst->sin6_addr, sizeof(ip6h->daddr));
+}
+
+static void build_udp_header(void *header, int payload_len, uint16_t sport,
+			     uint16_t dport, int family)
+{
+	struct udphdr *udph = header;
+	int len = sizeof(*udph) + payload_len;
+
+	udph->source = htons(sport);
+	udph->dest = htons(dport);
+	udph->len = htons(len);
+	udph->check = 0;
+	if (family == AF_INET)
+		udph->check = build_udp_v4_csum(header - sizeof(struct iphdr),
+						udph);
+	else
+		udph->check = build_udp_v6_csum(header - sizeof(struct ipv6hdr),
+						udph);
+}
+
+static void build_gue_header(void *header, uint8_t proto)
+{
+	struct guehdr *gueh = header;
+
+	gueh->proto_ctype = proto;
+}
+
+static void build_gre_header(void *header, uint16_t proto)
+{
+	struct grehdr *greh = header;
+
+	greh->protocol = htons(proto);
+}
+
+static int l3_length(int family)
+{
+	if (family == AF_INET)
+		return sizeof(struct iphdr);
+	else
+		return sizeof(struct ipv6hdr);
+}
+
+static int build_packet(const struct test_configuration *test, uint16_t sport)
+{
+	int ol3_len = 0, ol4_len = 0, il3_len = 0, il4_len = 0;
+	int el3_len = 0, packet_len;
+
+	memset(buf, 0, ETH_DATA_LEN);
+
+	if (test->cfg_l3_extra)
+		el3_len = l3_length(test->cfg_l3_extra);
+
+	/* calculate header offsets */
+	if (test->cfg_encap_proto) {
+		ol3_len = l3_length(test->cfg_l3_outer);
+
+		if (test->cfg_encap_proto == IPPROTO_GRE)
+			ol4_len = sizeof(struct grehdr);
+		else if (test->cfg_encap_proto == IPPROTO_UDP)
+			ol4_len = sizeof(struct udphdr) + sizeof(struct guehdr);
+	}
+
+	il3_len = l3_length(test->cfg_l3_inner);
+	il4_len = sizeof(struct udphdr);
+
+	packet_len = el3_len + ol3_len + ol4_len + il3_len + il4_len +
+		     TEST_PACKET_LEN;
+	if (!ASSERT_LE(packet_len, sizeof(buf), "check packet size"))
+		return -1;
+
+	/*
+	 * Fill packet from inside out, to calculate correct checksums.
+	 * But create ip before udp headers, as udp uses ip for pseudo-sum.
+	 */
+	memset(buf + el3_len + ol3_len + ol4_len + il3_len + il4_len,
+	       TEST_PACKET_PATTERN, TEST_PACKET_LEN);
+
+	/* add zero byte for udp csum padding */
+	buf[el3_len + ol3_len + ol4_len + il3_len + il4_len + TEST_PACKET_LEN] =
+		0;
+
+	switch (test->cfg_l3_inner) {
+	case PF_INET:
+		build_ipv4_header(buf + el3_len + ol3_len + ol4_len,
+				  IPPROTO_UDP, test->in_saddr4.sin_addr.s_addr,
+				  test->in_daddr4.sin_addr.s_addr,
+				  il4_len + TEST_PACKET_LEN,
+				  test->cfg_dsfield_inner);
+		break;
+	case PF_INET6:
+		build_ipv6_header(buf + el3_len + ol3_len + ol4_len,
+				  IPPROTO_UDP, &test->in_saddr6,
+				  &test->in_daddr6, il4_len + TEST_PACKET_LEN,
+				  test->cfg_dsfield_inner);
+		break;
+	}
+
+	build_udp_header(buf + el3_len + ol3_len + ol4_len + il3_len,
+			 TEST_PACKET_LEN, sport, CFG_PORT_INNER,
+			 test->cfg_l3_inner);
+
+	if (!test->cfg_encap_proto)
+		return il3_len + il4_len + TEST_PACKET_LEN;
+
+	switch (test->cfg_l3_outer) {
+	case PF_INET:
+		build_ipv4_header(buf + el3_len, test->cfg_encap_proto,
+				  test->out_saddr4.sin_addr.s_addr,
+				  test->out_daddr4.sin_addr.s_addr,
+				  ol4_len + il3_len + il4_len + TEST_PACKET_LEN,
+				  test->cfg_dsfield_outer);
+		break;
+	case PF_INET6:
+		build_ipv6_header(buf + el3_len, test->cfg_encap_proto,
+				  &test->out_saddr6, &test->out_daddr6,
+				  ol4_len + il3_len + il4_len + TEST_PACKET_LEN,
+				  test->cfg_dsfield_outer);
+		break;
+	}
+
+	switch (test->cfg_encap_proto) {
+	case IPPROTO_UDP:
+		build_gue_header(buf + el3_len + ol3_len + ol4_len -
+					 sizeof(struct guehdr),
+				 test->cfg_l3_inner == PF_INET ? IPPROTO_IPIP :
+								 IPPROTO_IPV6);
+		build_udp_header(buf + el3_len + ol3_len,
+				 sizeof(struct guehdr) + il3_len + il4_len +
+					 TEST_PACKET_LEN,
+				 sport, CFG_PORT_GUE, test->cfg_l3_outer);
+		break;
+	case IPPROTO_GRE:
+		build_gre_header(buf + el3_len + ol3_len,
+				 test->cfg_l3_inner == PF_INET ? ETH_P_IP :
+								 ETH_P_IPV6);
+		break;
+	}
+
+	switch (test->cfg_l3_extra) {
+	case PF_INET:
+		build_ipv4_header(buf,
+				  test->cfg_l3_outer == PF_INET ? IPPROTO_IPIP :
+								  IPPROTO_IPV6,
+				  test->extra_saddr4.sin_addr.s_addr,
+				  test->extra_daddr4.sin_addr.s_addr,
+				  ol3_len + ol4_len + il3_len + il4_len +
+					  TEST_PACKET_LEN,
+				  0);
+		break;
+	case PF_INET6:
+		build_ipv6_header(buf,
+				  test->cfg_l3_outer == PF_INET ? IPPROTO_IPIP :
+								  IPPROTO_IPV6,
+				  &test->extra_saddr6, &test->extra_daddr6,
+				  ol3_len + ol4_len + il3_len + il4_len +
+					  TEST_PACKET_LEN,
+				  0);
+		break;
+	}
+
+	return el3_len + ol3_len + ol4_len + il3_len + il4_len +
+	       TEST_PACKET_LEN;
+}
+
+/* sender transmits encapsulated over RAW or unencap'd over UDP */
+static int setup_tx(const struct test_configuration *test)
+{
+	int family, fd, ret;
+
+	if (test->cfg_l3_extra)
+		family = test->cfg_l3_extra;
+	else if (test->cfg_l3_outer)
+		family = test->cfg_l3_outer;
+	else
+		family = test->cfg_l3_inner;
+
+	fd = socket(family, SOCK_RAW, IPPROTO_RAW);
+	if (!ASSERT_OK_FD(fd, "setup tx socket"))
+		return fd;
+
+	if (test->cfg_l3_extra) {
+		if (test->cfg_l3_extra == PF_INET)
+			ret = connect(fd, (void *)&test->extra_daddr4,
+				      sizeof(test->extra_daddr4));
+		else
+			ret = connect(fd, (void *)&test->extra_daddr6,
+				      sizeof(test->extra_daddr6));
+		if (!ASSERT_OK(ret, "connect")) {
+			close(fd);
+			return ret;
+		}
+	} else if (test->cfg_l3_outer) {
+		/* connect to destination if not encapsulated */
+		if (test->cfg_l3_outer == PF_INET)
+			ret = connect(fd, (void *)&test->out_daddr4,
+				      sizeof(test->out_daddr4));
+		else
+			ret = connect(fd, (void *)&test->out_daddr6,
+				      sizeof(test->out_daddr6));
+		if (!ASSERT_OK(ret, "connect")) {
+			close(fd);
+			return ret;
+		}
+	} else {
+		/* otherwise using loopback */
+		if (test->cfg_l3_inner == PF_INET)
+			ret = connect(fd, (void *)&test->in_daddr4,
+				      sizeof(test->in_daddr4));
+		else
+			ret = connect(fd, (void *)&test->in_daddr6,
+				      sizeof(test->in_daddr6));
+		if (!ASSERT_OK(ret, "connect")) {
+			close(fd);
+			return ret;
+		}
+	}
+
+	return fd;
+}
+
+/* receiver reads unencapsulated UDP */
+static int setup_rx(const struct test_configuration *test)
+{
+	int fd, ret;
+
+	fd = socket(test->cfg_l3_inner, SOCK_DGRAM, 0);
+	if (!ASSERT_OK_FD(fd, "socket rx"))
+		return fd;
+
+	if (test->cfg_l3_inner == PF_INET)
+		ret = bind(fd, (void *)&test->in_daddr4,
+			   sizeof(test->in_daddr4));
+	else
+		ret = bind(fd, (void *)&test->in_daddr6,
+			   sizeof(test->in_daddr6));
+	if (!ASSERT_OK(ret, "bind rx")) {
+		close(fd);
+		return ret;
+	}
+
+	return fd;
+}
+
+static int do_tx(int fd, const char *pkt, int len)
+{
+	int ret;
+
+	ret = write(fd, pkt, len);
+	return ret != len;
+}
+
+static int do_poll(int fd, short events, int timeout)
+{
+	struct pollfd pfd;
+	int ret;
+
+	pfd.fd = fd;
+	pfd.events = events;
+
+	ret = poll(&pfd, 1, timeout);
+	return ret;
+}
+
+static int do_rx(int fd)
+{
+	char rbuf;
+	int ret, num = 0;
+
+	while (1) {
+		ret = recv(fd, &rbuf, 1, MSG_DONTWAIT);
+		if (ret == -1 && errno == EAGAIN)
+			break;
+		if (ret < 0)
+			return -1;
+		if (!ASSERT_EQ(rbuf, TEST_PACKET_PATTERN, "check pkt pattern"))
+			return -1;
+		num++;
+	}
+
+	return num;
+}
+
+static int run_test(const struct test_configuration *test,
+		    int source_port_index)
+{
+	int fdt = -1, fdr = -1, len, tx = 0, rx = 0, err;
+	unsigned long tstop, tcur;
+
+	fdr = setup_rx(test);
+	fdt = setup_tx(test);
+	if (!ASSERT_OK_FD(fdr, "setup rx") || !ASSERT_OK_FD(fdt, "setup tx")) {
+		err = -1;
+		goto out_close_sockets;
+	}
+
+	len = build_packet(test,
+			   (uint16_t)test->source_ports[source_port_index]);
+	if (!ASSERT_GT(len, 0, "build test packet"))
+		return -1;
+
+	tcur = util_gettime();
+	tstop = tcur;
+
+	while (tx < TEST_PACKETS_COUNT) {
+		if (!ASSERT_OK(do_tx(fdt, buf, len), "do_tx"))
+			break;
+		tx++;
+		err = do_rx(fdr);
+		if (!ASSERT_GE(err, 0, "do_rx"))
+			break;
+		rx += err;
+	}
+
+	/* read straggler packets, if any */
+	if (rx < tx) {
+		tstop = util_gettime() + 100;
+		while (rx < tx) {
+			tcur = util_gettime();
+			if (tcur >= tstop)
+				break;
+
+			err = do_poll(fdr, POLLIN, tstop - tcur);
+			if (err < 0)
+				break;
+			err = do_rx(fdr);
+			if (err >= 0)
+				rx += err;
+		}
+	}
+
+out_close_sockets:
+	close(fdt);
+	close(fdr);
+	return rx;
+}
+
+static int attach_and_configure_program(struct bpf_flow *skel)
+{
+	struct bpf_map *prog_array = skel->maps.jmp_table;
+	int main_prog_fd, sub_prog_fd, map_fd, i, err;
+	struct bpf_program *prog;
+	char prog_name[32];
+
+	main_prog_fd = bpf_program__fd(skel->progs._dissect);
+	if (main_prog_fd < 0)
+		return main_prog_fd;
+
+	err = bpf_prog_attach(main_prog_fd, 0, BPF_FLOW_DISSECTOR, 0);
+	if (err)
+		return err;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (map_fd < 0)
+		return map_fd;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "flow_dissector_%d", i);
+
+		prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+		if (!prog)
+			return -1;
+
+		sub_prog_fd = bpf_program__fd(prog);
+		if (sub_prog_fd < 0)
+			return -1;
+
+		err = bpf_map_update_elem(map_fd, &i, &sub_prog_fd, BPF_ANY);
+		if (err)
+			return -1;
+	}
+
+	return main_prog_fd;
+}
+
+static void detach_program(struct bpf_flow *skel, int prog_fd)
+{
+	bpf_prog_detach2(prog_fd, 0, BPF_FLOW_DISSECTOR);
+}
+
+static int set_port_drop(int pf, bool multi_port)
+{
+	char dst_port[16];
+
+	snprintf(dst_port, sizeof(dst_port), "%d", CFG_PORT_INNER);
+
+	SYS(fail, "tc qdisc add dev lo ingress");
+	SYS(fail_delete_qdisc, "tc filter add %s %s %s %s %s %s %s %s %s %s %s %s",
+	    "dev lo",
+	    "parent FFFF:",
+	    "protocol", pf == PF_INET6 ? "ipv6" : "ip",
+	    "pref 1337",
+	    "flower",
+	    "ip_proto udp",
+	    "src_port", multi_port ? "8-10" : "9",
+	    "dst_port", dst_port,
+	    "action drop");
+	return 0;
+
+fail_delete_qdisc:
+	SYS_NOFAIL("tc qdisc del dev lo ingress");
+fail:
+	return 1;
+}
+
+static void remove_filter(void)
+{
+	SYS_NOFAIL("tc filter del dev lo ingress");
+	SYS_NOFAIL("tc qdisc del dev lo ingress");
+}
+
+static int ipv4_setup(void)
+{
+	return set_port_drop(PF_INET, false);
+}
+
+static int ipv6_setup(void)
+{
+	return set_port_drop(PF_INET6, false);
+}
+
+static int port_range_setup(void)
+{
+	return set_port_drop(PF_INET, true);
+}
+
+static int set_addresses(void)
+{
+	SYS(out, "ip -4 addr add  %s dev lo", TEST_IPV4);
+	SYS(out_remove_ipv4, "ip -6 addr add %s dev lo", TEST_IPV6);
+	return 0;
+out_remove_ipv4:
+	SYS_NOFAIL("ip -4 addr del %s dev lo", TEST_IPV4);
+out:
+	return -1;
+}
+
+static void unset_addresses(void)
+{
+	SYS_NOFAIL("ip -4 addr del %s dev lo", TEST_IPV4);
+	SYS_NOFAIL("ip -6 addr del %s dev lo", TEST_IPV6);
+}
+
+static int ipip_setup(void)
+{
+	if (!ASSERT_OK(set_addresses(), "configure addresses"))
+		return -1;
+	if (!ASSERT_OK(set_port_drop(PF_INET, false), "set filter"))
+		goto out_unset_addresses;
+	SYS(out_remove_filter,
+	    "ip link add ipip_test type ipip remote %s local %s dev lo",
+	    TEST_TUNNEL_REMOTE, TEST_TUNNEL_LOCAL);
+	SYS(out_clean_netif, "ip link set ipip_test up");
+	return 0;
+
+out_clean_netif:
+	SYS_NOFAIL("ip link del ipip_test");
+out_remove_filter:
+	remove_filter();
+out_unset_addresses:
+	unset_addresses();
+	return -1;
+}
+
+static void ipip_shutdown(void)
+{
+	SYS_NOFAIL("ip link del ipip_test");
+	remove_filter();
+	unset_addresses();
+}
+
+static int gre_setup(void)
+{
+	if (!ASSERT_OK(set_addresses(), "configure addresses"))
+		return -1;
+	if (!ASSERT_OK(set_port_drop(PF_INET, false), "set filter"))
+		goto out_unset_addresses;
+	SYS(out_remove_filter,
+	    "ip link add gre_test type gre remote %s local %s dev lo",
+	    TEST_TUNNEL_REMOTE, TEST_TUNNEL_LOCAL);
+	SYS(out_clean_netif, "ip link set gre_test up");
+	return 0;
+
+out_clean_netif:
+	SYS_NOFAIL("ip link del ipip_test");
+out_remove_filter:
+	remove_filter();
+out_unset_addresses:
+	unset_addresses();
+	return -1;
+}
+
+static void gre_shutdown(void)
+{
+	SYS_NOFAIL("ip link del gre_test");
+	remove_filter();
+	unset_addresses();
+}
+
+static const struct test_configuration tests_input[] = {
+	{
+		.name = "ipv4",
+		.test_setup = ipv4_setup,
+		.test_teardown = remove_filter,
+		.source_ports = { 8, 9, 10 },
+		.cfg_l3_inner = PF_INET,
+		.in_saddr4 = TEST_IN4_SRC_ADDR_DEFAULT,
+		.in_daddr4 = TEST_IN4_DST_ADDR_DEFAULT
+	},
+	{
+		.name = "ipv4_continue_dissect",
+		.test_setup = ipv4_setup,
+		.test_teardown = remove_filter,
+		.source_ports = { 8, 9, 10 },
+		.cfg_l3_inner = PF_INET,
+		.in_saddr4 = TEST_IN4_SRC_ADDR_DISSECT_CONTINUE,
+		.in_daddr4 = TEST_IN4_DST_ADDR_DEFAULT },
+	{
+		.name = "ipip",
+		.test_setup = ipip_setup,
+		.test_teardown = ipip_shutdown,
+		.source_ports = { 8, 9, 10 },
+		.cfg_l3_inner = PF_INET,
+		.in_saddr4 = TEST_IN4_SRC_ADDR_IPIP,
+		.in_daddr4 = TEST_IN4_DST_ADDR_IPIP,
+		.out_saddr4 = TEST_OUT4_SRC_ADDR_DEFAULT,
+		.out_daddr4 = TEST_OUT4_DST_ADDR_DEFAULT,
+		.cfg_l3_outer = PF_INET,
+		.cfg_encap_proto = IPPROTO_IPIP,
+
+	},
+	{
+		.name = "gre",
+		.test_setup = gre_setup,
+		.test_teardown = gre_shutdown,
+		.source_ports = { 8, 9, 10 },
+		.cfg_l3_inner = PF_INET,
+		.in_saddr4 = TEST_IN4_SRC_ADDR_IPIP,
+		.in_daddr4 = TEST_IN4_DST_ADDR_IPIP,
+		.out_saddr4 = TEST_OUT4_SRC_ADDR_DEFAULT,
+		.out_daddr4 = TEST_OUT4_DST_ADDR_DEFAULT,
+		.cfg_l3_outer = PF_INET,
+		.cfg_encap_proto = IPPROTO_GRE,
+	},
+	{
+		.name = "port_range",
+		.test_setup = port_range_setup,
+		.test_teardown = remove_filter,
+		.source_ports = { 7, 9, 11 },
+		.cfg_l3_inner = PF_INET,
+		.in_saddr4 = TEST_IN4_SRC_ADDR_DEFAULT,
+		.in_daddr4 = TEST_IN4_DST_ADDR_DEFAULT },
+	{
+		.name = "ipv6",
+		.test_setup = ipv6_setup,
+		.test_teardown = remove_filter,
+		.source_ports = { 8, 9, 10 },
+		.cfg_l3_inner = PF_INET6,
+		.in_saddr6 = TEST_IN6_SRC_ADDR_DEFAULT,
+		.in_daddr6 = TEST_IN6_DST_ADDR_DEFAULT
+	},
+};
+
+struct test_ctx {
+	struct bpf_flow *skel;
+	struct netns_obj *ns;
+	int prog_fd;
+};
+
+static int test_global_init(struct test_ctx *ctx)
+{
+	int err;
+
+	ctx->skel = bpf_flow__open_and_load();
+	if (!ASSERT_OK_PTR(ctx->skel, "open and load flow_dissector"))
+		return -1;
+
+	ctx->ns = netns_new("flow_dissector_classification", true);
+	if (!ASSERT_OK_PTR(ctx->ns, "switch ns"))
+		goto out_destroy_skel;
+
+	err = write_sysctl("/proc/sys/net/ipv4/conf/default/rp_filter", "0");
+	err |= write_sysctl("/proc/sys/net/ipv4/conf/all/rp_filter", "0");
+	err |= write_sysctl("/proc/sys/net/ipv4/conf/lo/rp_filter", "0");
+	if (!ASSERT_OK(err, "configure net tunables"))
+		goto out_clean_ns;
+
+	ctx->prog_fd = attach_and_configure_program(ctx->skel);
+	if (!ASSERT_OK_FD(ctx->prog_fd, "attach and configure program"))
+		goto out_clean_ns;
+	return 0;
+out_clean_ns:
+	netns_free(ctx->ns);
+out_destroy_skel:
+	bpf_flow__destroy(ctx->skel);
+	return -1;
+}
+
+static void test_global_shutdown(struct test_ctx *ctx)
+{
+	detach_program(ctx->skel, ctx->prog_fd);
+	netns_free(ctx->ns);
+	bpf_flow__destroy(ctx->skel);
+}
+
+void test_flow_dissector_classification(void)
+{
+	struct test_ctx ctx;
+	const struct test_configuration *test;
+	int i;
+
+	if (test_global_init(&ctx))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests_input); i++) {
+		if (!test__start_subtest(tests_input[i].name))
+			continue;
+		test = &tests_input[i];
+		/* All tests are expected to have one rx-ok port first,
+		 * then a non-working rx port, and finally a rx-ok port
+		 */
+		if (test->test_setup &&
+		    !ASSERT_OK(test->test_setup(), "init filter"))
+			continue;
+
+		ASSERT_EQ(run_test(test, 0), TEST_PACKETS_COUNT,
+			  "test first port");
+		ASSERT_EQ(run_test(test, 1), 0, "test second port");
+		ASSERT_EQ(run_test(test, 2), TEST_PACKETS_COUNT,
+			  "test third port");
+		if (test->test_teardown)
+			test->test_teardown();
+	}
+	test_global_shutdown(&ctx);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector_load_bytes.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector_load_bytes.c
new file mode 100644
index 000000000000..c7a47b57ac91
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector_load_bytes.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void serial_test_flow_dissector_load_bytes(void)
+{
+	struct bpf_flow_keys flow_keys;
+	struct bpf_insn prog[] = {
+		// BPF_REG_1 - 1st argument: context
+		// BPF_REG_2 - 2nd argument: offset, start at first byte
+		BPF_MOV64_IMM(BPF_REG_2, 0),
+		// BPF_REG_3 - 3rd argument: destination, reserve byte on stack
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_3, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -1),
+		// BPF_REG_4 - 4th argument: copy one byte
+		BPF_MOV64_IMM(BPF_REG_4, 1),
+		// bpf_skb_load_bytes(ctx, sizeof(pkt_v4), ptr, 1)
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+			     BPF_FUNC_skb_load_bytes),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+		// if (ret == 0) return BPF_DROP (2)
+		BPF_MOV64_IMM(BPF_REG_0, BPF_DROP),
+		BPF_EXIT_INSN(),
+		// if (ret != 0) return BPF_OK (0)
+		BPF_MOV64_IMM(BPF_REG_0, BPF_OK),
+		BPF_EXIT_INSN(),
+	};
+	int fd, err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = &flow_keys,
+		.data_size_out = sizeof(flow_keys),
+		.repeat = 1,
+	);
+
+	/* make sure bpf_skb_load_bytes is not allowed from skb-less context
+	 */
+	fd = bpf_test_load_program(BPF_PROG_TYPE_FLOW_DISSECTOR, prog,
+			      ARRAY_SIZE(prog), "GPL", 0, NULL, 0);
+	ASSERT_GE(fd, 0, "bpf_test_load_program good fd");
+
+	err = bpf_prog_test_run_opts(fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.data_size_out, sizeof(flow_keys),
+		  "test_run data_size_out");
+	ASSERT_EQ(topts.retval, BPF_OK, "test_run retval");
+
+	if (fd >= -1)
+		close(fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c b/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c
new file mode 100644
index 000000000000..9333f7346d15
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/flow_dissector_reattach.c
@@ -0,0 +1,678 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests for attaching, detaching, and replacing flow_dissector BPF program.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <linux/bpf.h>
+#include <bpf/bpf.h>
+
+#include "test_progs.h"
+
+static int init_net = -1;
+
+static __u32 query_attached_prog_id(int netns)
+{
+	__u32 prog_ids[1] = {};
+	__u32 prog_cnt = ARRAY_SIZE(prog_ids);
+	int err;
+
+	err = bpf_prog_query(netns, BPF_FLOW_DISSECTOR, 0, NULL,
+			     prog_ids, &prog_cnt);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_query");
+		return 0;
+	}
+
+	return prog_cnt == 1 ? prog_ids[0] : 0;
+}
+
+static bool prog_is_attached(int netns)
+{
+	return query_attached_prog_id(netns) > 0;
+}
+
+static int load_prog(enum bpf_prog_type type)
+{
+	struct bpf_insn prog[] = {
+		BPF_MOV64_IMM(BPF_REG_0, BPF_OK),
+		BPF_EXIT_INSN(),
+	};
+	int fd;
+
+	fd = bpf_test_load_program(type, prog, ARRAY_SIZE(prog), "GPL", 0, NULL, 0);
+	if (CHECK_FAIL(fd < 0))
+		perror("bpf_test_load_program");
+
+	return fd;
+}
+
+static __u32 query_prog_id(int prog)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int err;
+
+	err = bpf_prog_get_info_by_fd(prog, &info, &info_len);
+	if (CHECK_FAIL(err || info_len != sizeof(info))) {
+		perror("bpf_prog_get_info_by_fd");
+		return 0;
+	}
+
+	return info.id;
+}
+
+static int unshare_net(int old_net)
+{
+	int err, new_net;
+
+	err = unshare(CLONE_NEWNET);
+	if (CHECK_FAIL(err)) {
+		perror("unshare(CLONE_NEWNET)");
+		return -1;
+	}
+	new_net = open("/proc/self/ns/net", O_RDONLY);
+	if (CHECK_FAIL(new_net < 0)) {
+		perror("open(/proc/self/ns/net)");
+		setns(old_net, CLONE_NEWNET);
+		return -1;
+	}
+	return new_net;
+}
+
+static void test_prog_attach_prog_attach(int netns, int prog1, int prog2)
+{
+	int err;
+
+	err = bpf_prog_attach(prog1, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_attach(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect success when attaching a different program */
+	err = bpf_prog_attach(prog2, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_attach(prog2) #1");
+		goto out_detach;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog2));
+
+	/* Expect failure when attaching the same program twice */
+	err = bpf_prog_attach(prog2, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(!err || errno != EINVAL))
+		perror("bpf_prog_attach(prog2) #2");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog2));
+
+out_detach:
+	err = bpf_prog_detach2(prog2, 0, BPF_FLOW_DISSECTOR);
+	if (CHECK_FAIL(err))
+		perror("bpf_prog_detach");
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_create_link_create(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	int link1, link2;
+
+	link1 = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect failure creating link when another link exists */
+	errno = 0;
+	link2 = bpf_link_create(prog2, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link2 >= 0 || errno != E2BIG))
+		perror("bpf_prog_attach(prog2) expected E2BIG");
+	if (link2 >= 0)
+		close(link2);
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(link1);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_prog_attach_link_create(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	int err, link;
+
+	err = bpf_prog_attach(prog1, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_attach(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect failure creating link when prog attached */
+	errno = 0;
+	link = bpf_link_create(prog2, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link >= 0 || errno != EEXIST))
+		perror("bpf_link_create(prog2) expected EEXIST");
+	if (link >= 0)
+		close(link);
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	err = bpf_prog_detach2(prog1, 0, BPF_FLOW_DISSECTOR);
+	if (CHECK_FAIL(err))
+		perror("bpf_prog_detach");
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_create_prog_attach(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect failure attaching prog when link exists */
+	errno = 0;
+	err = bpf_prog_attach(prog2, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(!err || errno != EEXIST))
+		perror("bpf_prog_attach(prog2) expected EEXIST");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_create_prog_detach(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect failure detaching prog when link exists */
+	errno = 0;
+	err = bpf_prog_detach2(prog1, 0, BPF_FLOW_DISSECTOR);
+	if (CHECK_FAIL(!err || errno != EINVAL))
+		perror("bpf_prog_detach expected EINVAL");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_prog_attach_detach_query(int netns, int prog1, int prog2)
+{
+	int err;
+
+	err = bpf_prog_attach(prog1, 0, BPF_FLOW_DISSECTOR, 0);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_attach(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	err = bpf_prog_detach2(prog1, 0, BPF_FLOW_DISSECTOR);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_prog_detach");
+		return;
+	}
+
+	/* Expect no prog attached after successful detach */
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_create_close_query(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	int link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(link);
+	/* Expect no prog attached after closing last link FD */
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_no_old_prog(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect success replacing the prog when old prog not specified */
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(err))
+		perror("bpf_link_update");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog2));
+
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_replace_old_prog(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect success F_REPLACE and old prog specified to succeed */
+	update_opts.flags = BPF_F_REPLACE;
+	update_opts.old_prog_fd = prog1;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(err))
+		perror("bpf_link_update");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog2));
+
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_same_prog(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect success updating the prog with the same one */
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog1, &update_opts);
+	if (CHECK_FAIL(err))
+		perror("bpf_link_update");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_invalid_opts(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect update to fail w/ old prog FD but w/o F_REPLACE*/
+	errno = 0;
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = prog1;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(!err || errno != EINVAL)) {
+		perror("bpf_link_update expected EINVAL");
+		goto out_close;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect update to fail on old prog FD mismatch */
+	errno = 0;
+	update_opts.flags = BPF_F_REPLACE;
+	update_opts.old_prog_fd = prog2;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(!err || errno != EPERM)) {
+		perror("bpf_link_update expected EPERM");
+		goto out_close;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect update to fail for invalid old prog FD */
+	errno = 0;
+	update_opts.flags = BPF_F_REPLACE;
+	update_opts.old_prog_fd = -1;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(!err || errno != EBADF)) {
+		perror("bpf_link_update expected EBADF");
+		goto out_close;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect update to fail with invalid flags */
+	errno = 0;
+	update_opts.flags = BPF_F_ALLOW_MULTI;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(!err || errno != EINVAL))
+		perror("bpf_link_update expected EINVAL");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+out_close:
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_invalid_prog(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link, prog3;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	/* Expect failure when new prog FD is not valid */
+	errno = 0;
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, -1, &update_opts);
+	if (CHECK_FAIL(!err || errno != EBADF)) {
+		perror("bpf_link_update expected EINVAL");
+		goto out_close_link;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	prog3 = load_prog(BPF_PROG_TYPE_SOCKET_FILTER);
+	if (prog3 < 0)
+		goto out_close_link;
+
+	/* Expect failure when new prog FD type doesn't match */
+	errno = 0;
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog3, &update_opts);
+	if (CHECK_FAIL(!err || errno != EINVAL))
+		perror("bpf_link_update expected EINVAL");
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(prog3);
+out_close_link:
+	close(link);
+	CHECK_FAIL(prog_is_attached(netns));
+}
+
+static void test_link_update_netns_gone(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int err, link, old_net;
+
+	old_net = netns;
+	netns = unshare_net(old_net);
+	if (netns < 0)
+		return;
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		return;
+	}
+	CHECK_FAIL(query_attached_prog_id(netns) != query_prog_id(prog1));
+
+	close(netns);
+	err = setns(old_net, CLONE_NEWNET);
+	if (CHECK_FAIL(err)) {
+		perror("setns(CLONE_NEWNET)");
+		close(link);
+		return;
+	}
+
+	/* Expect failure when netns destroyed */
+	errno = 0;
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(!err || errno != ENOLINK))
+		perror("bpf_link_update");
+
+	close(link);
+}
+
+static void test_link_get_info(int netns, int prog1, int prog2)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, create_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	struct bpf_link_info info = {};
+	struct stat netns_stat = {};
+	__u32 info_len, link_id;
+	int err, link, old_net;
+
+	old_net = netns;
+	netns = unshare_net(old_net);
+	if (netns < 0)
+		return;
+
+	err = fstat(netns, &netns_stat);
+	if (CHECK_FAIL(err)) {
+		perror("stat(netns)");
+		goto out_resetns;
+	}
+
+	link = bpf_link_create(prog1, netns, BPF_FLOW_DISSECTOR, &create_opts);
+	if (CHECK_FAIL(link < 0)) {
+		perror("bpf_link_create(prog1)");
+		goto out_resetns;
+	}
+
+	info_len = sizeof(info);
+	err = bpf_link_get_info_by_fd(link, &info, &info_len);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_obj_get_info");
+		goto out_unlink;
+	}
+	CHECK_FAIL(info_len != sizeof(info));
+
+	/* Expect link info to be sane and match prog and netns details */
+	CHECK_FAIL(info.type != BPF_LINK_TYPE_NETNS);
+	CHECK_FAIL(info.id == 0);
+	CHECK_FAIL(info.prog_id != query_prog_id(prog1));
+	CHECK_FAIL(info.netns.netns_ino != netns_stat.st_ino);
+	CHECK_FAIL(info.netns.attach_type != BPF_FLOW_DISSECTOR);
+
+	update_opts.flags = 0;
+	update_opts.old_prog_fd = 0;
+	err = bpf_link_update(link, prog2, &update_opts);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_link_update(prog2)");
+		goto out_unlink;
+	}
+
+	link_id = info.id;
+	info_len = sizeof(info);
+	err = bpf_link_get_info_by_fd(link, &info, &info_len);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_obj_get_info");
+		goto out_unlink;
+	}
+	CHECK_FAIL(info_len != sizeof(info));
+
+	/* Expect no info change after update except in prog id */
+	CHECK_FAIL(info.type != BPF_LINK_TYPE_NETNS);
+	CHECK_FAIL(info.id != link_id);
+	CHECK_FAIL(info.prog_id != query_prog_id(prog2));
+	CHECK_FAIL(info.netns.netns_ino != netns_stat.st_ino);
+	CHECK_FAIL(info.netns.attach_type != BPF_FLOW_DISSECTOR);
+
+	/* Leave netns link is attached to and close last FD to it */
+	err = setns(old_net, CLONE_NEWNET);
+	if (CHECK_FAIL(err)) {
+		perror("setns(NEWNET)");
+		goto out_unlink;
+	}
+	close(netns);
+	old_net = -1;
+	netns = -1;
+
+	info_len = sizeof(info);
+	err = bpf_link_get_info_by_fd(link, &info, &info_len);
+	if (CHECK_FAIL(err)) {
+		perror("bpf_obj_get_info");
+		goto out_unlink;
+	}
+	CHECK_FAIL(info_len != sizeof(info));
+
+	/* Expect netns_ino to change to 0 */
+	CHECK_FAIL(info.type != BPF_LINK_TYPE_NETNS);
+	CHECK_FAIL(info.id != link_id);
+	CHECK_FAIL(info.prog_id != query_prog_id(prog2));
+	CHECK_FAIL(info.netns.netns_ino != 0);
+	CHECK_FAIL(info.netns.attach_type != BPF_FLOW_DISSECTOR);
+
+out_unlink:
+	close(link);
+out_resetns:
+	if (old_net != -1)
+		setns(old_net, CLONE_NEWNET);
+	if (netns != -1)
+		close(netns);
+}
+
+static void run_tests(int netns)
+{
+	struct test {
+		const char *test_name;
+		void (*test_func)(int netns, int prog1, int prog2);
+	} tests[] = {
+		{ "prog attach, prog attach",
+		  test_prog_attach_prog_attach },
+		{ "link create, link create",
+		  test_link_create_link_create },
+		{ "prog attach, link create",
+		  test_prog_attach_link_create },
+		{ "link create, prog attach",
+		  test_link_create_prog_attach },
+		{ "link create, prog detach",
+		  test_link_create_prog_detach },
+		{ "prog attach, detach, query",
+		  test_prog_attach_detach_query },
+		{ "link create, close, query",
+		  test_link_create_close_query },
+		{ "link update no old prog",
+		  test_link_update_no_old_prog },
+		{ "link update with replace old prog",
+		  test_link_update_replace_old_prog },
+		{ "link update with same prog",
+		  test_link_update_same_prog },
+		{ "link update invalid opts",
+		  test_link_update_invalid_opts },
+		{ "link update invalid prog",
+		  test_link_update_invalid_prog },
+		{ "link update netns gone",
+		  test_link_update_netns_gone },
+		{ "link get info",
+		  test_link_get_info },
+	};
+	int i, progs[2] = { -1, -1 };
+	char test_name[80];
+
+	for (i = 0; i < ARRAY_SIZE(progs); i++) {
+		progs[i] = load_prog(BPF_PROG_TYPE_FLOW_DISSECTOR);
+		if (progs[i] < 0)
+			goto out_close;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		snprintf(test_name, sizeof(test_name),
+			 "flow dissector %s%s",
+			 tests[i].test_name,
+			 netns == init_net ? " (init_net)" : "");
+		if (test__start_subtest(test_name))
+			tests[i].test_func(netns, progs[0], progs[1]);
+	}
+out_close:
+	for (i = 0; i < ARRAY_SIZE(progs); i++) {
+		if (progs[i] >= 0)
+			CHECK_FAIL(close(progs[i]));
+	}
+}
+
+void serial_test_flow_dissector_reattach(void)
+{
+	int err, new_net, saved_net;
+
+	saved_net = open("/proc/self/ns/net", O_RDONLY);
+	if (CHECK_FAIL(saved_net < 0)) {
+		perror("open(/proc/self/ns/net");
+		return;
+	}
+
+	init_net = open("/proc/1/ns/net", O_RDONLY);
+	if (CHECK_FAIL(init_net < 0)) {
+		perror("open(/proc/1/ns/net)");
+		goto out_close;
+	}
+
+	err = setns(init_net, CLONE_NEWNET);
+	if (CHECK_FAIL(err)) {
+		perror("setns(/proc/1/ns/net)");
+		goto out_close;
+	}
+
+	if (prog_is_attached(init_net)) {
+		test__skip();
+		printf("Can't test with flow dissector attached to init_net\n");
+		goto out_setns;
+	}
+
+	/* First run tests in root network namespace */
+	run_tests(init_net);
+
+	/* Then repeat tests in a non-root namespace */
+	new_net = unshare_net(init_net);
+	if (new_net < 0)
+		goto out_setns;
+	run_tests(new_net);
+	close(new_net);
+
+out_setns:
+	/* Move back to netns we started in. */
+	err = setns(saved_net, CLONE_NEWNET);
+	if (CHECK_FAIL(err))
+		perror("setns(/proc/self/ns/net)");
+
+out_close:
+	close(init_net);
+	close(saved_net);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/for_each.c b/tools/testing/selftests/bpf/prog_tests/for_each.c
new file mode 100644
index 000000000000..5fea3209566e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/for_each.c
@@ -0,0 +1,253 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "for_each_hash_map_elem.skel.h"
+#include "for_each_array_map_elem.skel.h"
+#include "for_each_map_elem_write_key.skel.h"
+#include "for_each_multi_maps.skel.h"
+#include "for_each_hash_modify.skel.h"
+
+static unsigned int duration;
+
+static void test_hash_map(void)
+{
+	int i, err, max_entries;
+	struct for_each_hash_map_elem *skel;
+	__u64 *percpu_valbuf = NULL;
+	size_t percpu_val_sz;
+	__u32 key, num_cpus;
+	__u64 val;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = for_each_hash_map_elem__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "for_each_hash_map_elem__open_and_load"))
+		return;
+
+	max_entries = bpf_map__max_entries(skel->maps.hashmap);
+	for (i = 0; i < max_entries; i++) {
+		key = i;
+		val = i + 1;
+		err = bpf_map__update_elem(skel->maps.hashmap, &key, sizeof(key),
+					   &val, sizeof(val), BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	num_cpus = bpf_num_possible_cpus();
+	percpu_val_sz = sizeof(__u64) * num_cpus;
+	percpu_valbuf = malloc(percpu_val_sz);
+	if (!ASSERT_OK_PTR(percpu_valbuf, "percpu_valbuf"))
+		goto out;
+
+	key = 1;
+	for (i = 0; i < num_cpus; i++)
+		percpu_valbuf[i] = i + 1;
+	err = bpf_map__update_elem(skel->maps.percpu_map, &key, sizeof(key),
+				   percpu_valbuf, percpu_val_sz, BPF_ANY);
+	if (!ASSERT_OK(err, "percpu_map_update"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);
+	duration = topts.duration;
+	if (CHECK(err || topts.retval, "ipv4", "err %d errno %d retval %d\n",
+		  err, errno, topts.retval))
+		goto out;
+
+	ASSERT_EQ(skel->bss->hashmap_output, 4, "hashmap_output");
+	ASSERT_EQ(skel->bss->hashmap_elems, max_entries, "hashmap_elems");
+
+	key = 1;
+	err = bpf_map__lookup_elem(skel->maps.hashmap, &key, sizeof(key), &val, sizeof(val), 0);
+	ASSERT_ERR(err, "hashmap_lookup");
+
+	ASSERT_EQ(skel->bss->percpu_called, 1, "percpu_called");
+	ASSERT_LT(skel->bss->cpu, num_cpus, "num_cpus");
+	ASSERT_EQ(skel->bss->percpu_map_elems, 1, "percpu_map_elems");
+	ASSERT_EQ(skel->bss->percpu_key, 1, "percpu_key");
+	ASSERT_EQ(skel->bss->percpu_val, skel->bss->cpu + 1, "percpu_val");
+	ASSERT_EQ(skel->bss->percpu_output, 100, "percpu_output");
+out:
+	free(percpu_valbuf);
+	for_each_hash_map_elem__destroy(skel);
+}
+
+static void test_array_map(void)
+{
+	__u32 key, num_cpus, max_entries;
+	int i, err;
+	struct for_each_array_map_elem *skel;
+	__u64 *percpu_valbuf = NULL;
+	size_t percpu_val_sz;
+	__u64 val, expected_total;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = for_each_array_map_elem__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "for_each_array_map_elem__open_and_load"))
+		return;
+
+	expected_total = 0;
+	max_entries = bpf_map__max_entries(skel->maps.arraymap);
+	for (i = 0; i < max_entries; i++) {
+		key = i;
+		val = i + 1;
+		/* skip the last iteration for expected total */
+		if (i != max_entries - 1)
+			expected_total += val;
+		err = bpf_map__update_elem(skel->maps.arraymap, &key, sizeof(key),
+					   &val, sizeof(val), BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	num_cpus = bpf_num_possible_cpus();
+	percpu_val_sz = sizeof(__u64) * num_cpus;
+	percpu_valbuf = malloc(percpu_val_sz);
+	if (!ASSERT_OK_PTR(percpu_valbuf, "percpu_valbuf"))
+		goto out;
+
+	key = 0;
+	for (i = 0; i < num_cpus; i++)
+		percpu_valbuf[i] = i + 1;
+	err = bpf_map__update_elem(skel->maps.percpu_map, &key, sizeof(key),
+				   percpu_valbuf, percpu_val_sz, BPF_ANY);
+	if (!ASSERT_OK(err, "percpu_map_update"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);
+	duration = topts.duration;
+	if (CHECK(err || topts.retval, "ipv4", "err %d errno %d retval %d\n",
+		  err, errno, topts.retval))
+		goto out;
+
+	ASSERT_EQ(skel->bss->arraymap_output, expected_total, "array_output");
+	ASSERT_EQ(skel->bss->cpu + 1, skel->bss->percpu_val, "percpu_val");
+
+out:
+	free(percpu_valbuf);
+	for_each_array_map_elem__destroy(skel);
+}
+
+static void test_write_map_key(void)
+{
+	struct for_each_map_elem_write_key *skel;
+
+	skel = for_each_map_elem_write_key__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "for_each_map_elem_write_key__open_and_load"))
+		for_each_map_elem_write_key__destroy(skel);
+}
+
+static void test_multi_maps(void)
+{
+	struct for_each_multi_maps *skel;
+	__u64 val, array_total, hash_total;
+	__u32 key, max_entries;
+	int i, err;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = for_each_multi_maps__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "for_each_multi_maps__open_and_load"))
+		return;
+
+	array_total = 0;
+	max_entries = bpf_map__max_entries(skel->maps.arraymap);
+	for (i = 0; i < max_entries; i++) {
+		key = i;
+		val = i + 1;
+		array_total += val;
+		err = bpf_map__update_elem(skel->maps.arraymap, &key, sizeof(key),
+					   &val, sizeof(val), BPF_ANY);
+		if (!ASSERT_OK(err, "array_map_update"))
+			goto out;
+	}
+
+	hash_total = 0;
+	max_entries = bpf_map__max_entries(skel->maps.hashmap);
+	for (i = 0; i < max_entries; i++) {
+		key = i + 100;
+		val = i + 1;
+		hash_total += val;
+		err = bpf_map__update_elem(skel->maps.hashmap, &key, sizeof(key),
+					   &val, sizeof(val), BPF_ANY);
+		if (!ASSERT_OK(err, "hash_map_update"))
+			goto out;
+	}
+
+	skel->bss->data_output = 0;
+	skel->bss->use_array = 1;
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_OK(topts.retval, "retval");
+	ASSERT_EQ(skel->bss->data_output, array_total, "array output");
+
+	skel->bss->data_output = 0;
+	skel->bss->use_array = 0;
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_OK(topts.retval, "retval");
+	ASSERT_EQ(skel->bss->data_output, hash_total, "hash output");
+
+out:
+	for_each_multi_maps__destroy(skel);
+}
+
+static void test_hash_modify(void)
+{
+	struct for_each_hash_modify *skel;
+	int max_entries, i, err;
+	__u64 key, val;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1
+	);
+
+	skel = for_each_hash_modify__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "for_each_hash_modify__open_and_load"))
+		return;
+
+	max_entries = bpf_map__max_entries(skel->maps.hashmap);
+	for (i = 0; i < max_entries; i++) {
+		key = i;
+		val = i;
+		err = bpf_map__update_elem(skel->maps.hashmap, &key, sizeof(key),
+					   &val, sizeof(val), BPF_ANY);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_pkt_access), &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_OK(topts.retval, "retval");
+
+out:
+	for_each_hash_modify__destroy(skel);
+}
+
+void test_for_each(void)
+{
+	if (test__start_subtest("hash_map"))
+		test_hash_map();
+	if (test__start_subtest("array_map"))
+		test_array_map();
+	if (test__start_subtest("write_map_key"))
+		test_write_map_key();
+	if (test__start_subtest("multi_maps"))
+		test_multi_maps();
+	if (test__start_subtest("hash_modify"))
+		test_hash_modify();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/free_timer.c b/tools/testing/selftests/bpf/prog_tests/free_timer.c
new file mode 100644
index 000000000000..0de8facca4c5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/free_timer.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <test_progs.h>
+
+#include "free_timer.skel.h"
+
+struct run_ctx {
+	struct bpf_program *start_prog;
+	struct bpf_program *overwrite_prog;
+	pthread_barrier_t notify;
+	int loop;
+	bool start;
+	bool stop;
+};
+
+static void start_threads(struct run_ctx *ctx)
+{
+	ctx->start = true;
+}
+
+static void stop_threads(struct run_ctx *ctx)
+{
+	ctx->stop = true;
+	/* Guarantee the order between ->stop and ->start */
+	__atomic_store_n(&ctx->start, true, __ATOMIC_RELEASE);
+}
+
+static int wait_for_start(struct run_ctx *ctx)
+{
+	while (!__atomic_load_n(&ctx->start, __ATOMIC_ACQUIRE))
+		usleep(10);
+
+	return ctx->stop;
+}
+
+static void *overwrite_timer_fn(void *arg)
+{
+	struct run_ctx *ctx = arg;
+	int loop, fd, err;
+	cpu_set_t cpuset;
+	long ret = 0;
+
+	/* Pin on CPU 0 */
+	CPU_ZERO(&cpuset);
+	CPU_SET(0, &cpuset);
+	pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
+
+	/* Is the thread being stopped ? */
+	err = wait_for_start(ctx);
+	if (err)
+		return NULL;
+
+	fd = bpf_program__fd(ctx->overwrite_prog);
+	loop = ctx->loop;
+	while (loop-- > 0) {
+		LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+		/* Wait for start thread to complete */
+		pthread_barrier_wait(&ctx->notify);
+
+		/* Overwrite timers */
+		err = bpf_prog_test_run_opts(fd, &opts);
+		if (err)
+			ret |= 1;
+		else if (opts.retval)
+			ret |= 2;
+
+		/* Notify start thread to start timers */
+		pthread_barrier_wait(&ctx->notify);
+	}
+
+	return (void *)ret;
+}
+
+static void *start_timer_fn(void *arg)
+{
+	struct run_ctx *ctx = arg;
+	int loop, fd, err;
+	cpu_set_t cpuset;
+	long ret = 0;
+
+	/* Pin on CPU 1 */
+	CPU_ZERO(&cpuset);
+	CPU_SET(1, &cpuset);
+	pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
+
+	/* Is the thread being stopped ? */
+	err = wait_for_start(ctx);
+	if (err)
+		return NULL;
+
+	fd = bpf_program__fd(ctx->start_prog);
+	loop = ctx->loop;
+	while (loop-- > 0) {
+		LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+		/* Run the prog to start timer */
+		err = bpf_prog_test_run_opts(fd, &opts);
+		if (err)
+			ret |= 4;
+		else if (opts.retval)
+			ret |= 8;
+
+		/* Notify overwrite thread to do overwrite */
+		pthread_barrier_wait(&ctx->notify);
+
+		/* Wait for overwrite thread to complete */
+		pthread_barrier_wait(&ctx->notify);
+	}
+
+	return (void *)ret;
+}
+
+void test_free_timer(void)
+{
+	struct free_timer *skel;
+	struct bpf_program *prog;
+	struct run_ctx ctx;
+	pthread_t tid[2];
+	void *ret;
+	int err;
+
+	skel = free_timer__open_and_load();
+	if (!skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(skel, "open_load"))
+		return;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	prog = bpf_object__find_program_by_name(skel->obj, "start_timer");
+	if (!ASSERT_OK_PTR(prog, "find start prog"))
+		goto out;
+	ctx.start_prog = prog;
+
+	prog = bpf_object__find_program_by_name(skel->obj, "overwrite_timer");
+	if (!ASSERT_OK_PTR(prog, "find overwrite prog"))
+		goto out;
+	ctx.overwrite_prog = prog;
+
+	pthread_barrier_init(&ctx.notify, NULL, 2);
+	ctx.loop = 10;
+
+	err = pthread_create(&tid[0], NULL, start_timer_fn, &ctx);
+	if (!ASSERT_OK(err, "create start_timer"))
+		goto out;
+
+	err = pthread_create(&tid[1], NULL, overwrite_timer_fn, &ctx);
+	if (!ASSERT_OK(err, "create overwrite_timer")) {
+		stop_threads(&ctx);
+		goto out;
+	}
+
+	start_threads(&ctx);
+
+	ret = NULL;
+	err = pthread_join(tid[0], &ret);
+	ASSERT_EQ(err | (long)ret, 0, "start_timer");
+	ret = NULL;
+	err = pthread_join(tid[1], &ret);
+	ASSERT_EQ(err | (long)ret, 0, "overwrite_timer");
+out:
+	free_timer__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c b/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c
new file mode 100644
index 000000000000..43a26ec69a8e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/fs_kfuncs.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/xattr.h>
+#include <linux/fsverity.h>
+#include <unistd.h>
+#include <test_progs.h>
+#include "test_get_xattr.skel.h"
+#include "test_set_remove_xattr.skel.h"
+#include "test_fsverity.skel.h"
+
+static const char testfile[] = "/tmp/test_progs_fs_kfuncs";
+
+static void test_get_xattr(const char *name, const char *value, bool allow_access)
+{
+	struct test_get_xattr *skel = NULL;
+	int fd = -1, err;
+	int v[32];
+
+	fd = open(testfile, O_CREAT | O_RDONLY, 0644);
+	if (!ASSERT_GE(fd, 0, "create_file"))
+		return;
+
+	close(fd);
+	fd = -1;
+
+	err = setxattr(testfile, name, value, strlen(value) + 1, 0);
+	if (err && errno == EOPNOTSUPP) {
+		printf("%s:SKIP:local fs doesn't support xattr (%d)\n"
+		       "To run this test, make sure /tmp filesystem supports xattr.\n",
+		       __func__, errno);
+		test__skip();
+		goto out;
+	}
+
+	if (!ASSERT_OK(err, "setxattr"))
+		goto out;
+
+	skel = test_get_xattr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_get_xattr__open_and_load"))
+		goto out;
+
+	skel->bss->monitored_pid = getpid();
+	err = test_get_xattr__attach(skel);
+
+	if (!ASSERT_OK(err, "test_get_xattr__attach"))
+		goto out;
+
+	fd = open(testfile, O_RDONLY, 0644);
+
+	if (!ASSERT_GE(fd, 0, "open_file"))
+		goto out;
+
+	/* Trigger security_inode_getxattr */
+	err = getxattr(testfile, name, v, sizeof(v));
+
+	if (allow_access) {
+		ASSERT_EQ(err, -1, "getxattr_return");
+		ASSERT_EQ(errno, EINVAL, "getxattr_errno");
+		ASSERT_EQ(skel->bss->found_xattr_from_file, 1, "found_xattr_from_file");
+		ASSERT_EQ(skel->bss->found_xattr_from_dentry, 1, "found_xattr_from_dentry");
+	} else {
+		ASSERT_EQ(err, strlen(value) + 1, "getxattr_return");
+		ASSERT_EQ(skel->bss->found_xattr_from_file, 0, "found_xattr_from_file");
+		ASSERT_EQ(skel->bss->found_xattr_from_dentry, 0, "found_xattr_from_dentry");
+	}
+
+out:
+	close(fd);
+	test_get_xattr__destroy(skel);
+	remove(testfile);
+}
+
+/* xattr value we will set to security.bpf.foo */
+static const char value_foo[] = "hello";
+
+static void read_and_validate_foo(struct test_set_remove_xattr *skel)
+{
+	char value_out[32];
+	int err;
+
+	err = getxattr(testfile, skel->rodata->xattr_foo, value_out, sizeof(value_out));
+	ASSERT_EQ(err, sizeof(value_foo), "getxattr size foo");
+	ASSERT_EQ(strncmp(value_out, value_foo, sizeof(value_foo)), 0, "strncmp value_foo");
+}
+
+static void set_foo(struct test_set_remove_xattr *skel)
+{
+	ASSERT_OK(setxattr(testfile, skel->rodata->xattr_foo, value_foo, strlen(value_foo) + 1, 0),
+		  "setxattr foo");
+}
+
+static void validate_bar_match(struct test_set_remove_xattr *skel)
+{
+	char value_out[32];
+	int err;
+
+	err = getxattr(testfile, skel->rodata->xattr_bar, value_out, sizeof(value_out));
+	ASSERT_EQ(err, sizeof(skel->data->value_bar), "getxattr size bar");
+	ASSERT_EQ(strncmp(value_out, skel->data->value_bar, sizeof(skel->data->value_bar)), 0,
+		  "strncmp value_bar");
+}
+
+static void validate_bar_removed(struct test_set_remove_xattr *skel)
+{
+	char value_out[32];
+	int err;
+
+	err = getxattr(testfile, skel->rodata->xattr_bar, value_out, sizeof(value_out));
+	ASSERT_LT(err, 0, "getxattr size bar should fail");
+}
+
+static void test_set_remove_xattr(void)
+{
+	struct test_set_remove_xattr *skel = NULL;
+	int fd = -1, err;
+
+	fd = open(testfile, O_CREAT | O_RDONLY, 0644);
+	if (!ASSERT_GE(fd, 0, "create_file"))
+		return;
+
+	close(fd);
+	fd = -1;
+
+	skel = test_set_remove_xattr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_set_remove_xattr__open_and_load"))
+		return;
+
+	/* Set security.bpf.foo to "hello" */
+	err = setxattr(testfile, skel->rodata->xattr_foo, value_foo, strlen(value_foo) + 1, 0);
+	if (err && errno == EOPNOTSUPP) {
+		printf("%s:SKIP:local fs doesn't support xattr (%d)\n"
+		       "To run this test, make sure /tmp filesystem supports xattr.\n",
+		       __func__, errno);
+		test__skip();
+		goto out;
+	}
+
+	if (!ASSERT_OK(err, "setxattr"))
+		goto out;
+
+	skel->bss->monitored_pid = getpid();
+	err = test_set_remove_xattr__attach(skel);
+	if (!ASSERT_OK(err, "test_set_remove_xattr__attach"))
+		goto out;
+
+	/* First, test not _locked version of the kfuncs with getxattr. */
+
+	/* Read security.bpf.foo and trigger test_inode_getxattr. This
+	 * bpf program will set security.bpf.bar to "world".
+	 */
+	read_and_validate_foo(skel);
+	validate_bar_match(skel);
+
+	/* Read security.bpf.foo and trigger test_inode_getxattr again.
+	 * This will remove xattr security.bpf.bar.
+	 */
+	read_and_validate_foo(skel);
+	validate_bar_removed(skel);
+
+	ASSERT_TRUE(skel->bss->set_security_bpf_bar_success, "set_security_bpf_bar_success");
+	ASSERT_TRUE(skel->bss->remove_security_bpf_bar_success, "remove_security_bpf_bar_success");
+	ASSERT_TRUE(skel->bss->set_security_selinux_fail, "set_security_selinux_fail");
+	ASSERT_TRUE(skel->bss->remove_security_selinux_fail, "remove_security_selinux_fail");
+
+	/* Second, test _locked version of the kfuncs, with setxattr */
+
+	/* Set security.bpf.foo and trigger test_inode_setxattr. This
+	 * bpf program will set security.bpf.bar to "world".
+	 */
+	set_foo(skel);
+	validate_bar_match(skel);
+
+	/* Set security.bpf.foo and trigger test_inode_setxattr again.
+	 * This will remove xattr security.bpf.bar.
+	 */
+	set_foo(skel);
+	validate_bar_removed(skel);
+
+	ASSERT_TRUE(skel->bss->locked_set_security_bpf_bar_success,
+		    "locked_set_security_bpf_bar_success");
+	ASSERT_TRUE(skel->bss->locked_remove_security_bpf_bar_success,
+		    "locked_remove_security_bpf_bar_success");
+	ASSERT_TRUE(skel->bss->locked_set_security_selinux_fail,
+		    "locked_set_security_selinux_fail");
+	ASSERT_TRUE(skel->bss->locked_remove_security_selinux_fail,
+		    "locked_remove_security_selinux_fail");
+
+out:
+	close(fd);
+	test_set_remove_xattr__destroy(skel);
+	remove(testfile);
+}
+
+#ifndef SHA256_DIGEST_SIZE
+#define SHA256_DIGEST_SIZE      32
+#endif
+
+static void test_fsverity(void)
+{
+	struct fsverity_enable_arg arg = {0};
+	struct test_fsverity *skel = NULL;
+	struct fsverity_digest *d;
+	int fd, err;
+	char buffer[4096];
+
+	fd = open(testfile, O_CREAT | O_RDWR, 0644);
+	if (!ASSERT_GE(fd, 0, "create_file"))
+		return;
+
+	/* Write random buffer, so the file is not empty */
+	err = write(fd, buffer, 4096);
+	if (!ASSERT_EQ(err, 4096, "write_file"))
+		goto out;
+	close(fd);
+
+	/* Reopen read-only, otherwise FS_IOC_ENABLE_VERITY will fail */
+	fd = open(testfile, O_RDONLY, 0644);
+	if (!ASSERT_GE(fd, 0, "open_file1"))
+		return;
+
+	/* Enable fsverity for the file.
+	 * If the file system doesn't support verity, this will fail. Skip
+	 * the test in such case.
+	 */
+	arg.version = 1;
+	arg.hash_algorithm = FS_VERITY_HASH_ALG_SHA256;
+	arg.block_size = 4096;
+	err = ioctl(fd, FS_IOC_ENABLE_VERITY, &arg);
+	if (err) {
+		printf("%s:SKIP:local fs doesn't support fsverity (%d)\n"
+		       "To run this test, try enable CONFIG_FS_VERITY and enable FSVerity for the filesystem.\n",
+		       __func__, errno);
+		test__skip();
+		goto out;
+	}
+
+	skel = test_fsverity__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_fsverity__open_and_load"))
+		goto out;
+
+	/* Get fsverity_digest from ioctl */
+	d = (struct fsverity_digest *)skel->bss->expected_digest;
+	d->digest_algorithm = FS_VERITY_HASH_ALG_SHA256;
+	d->digest_size = SHA256_DIGEST_SIZE;
+	err = ioctl(fd, FS_IOC_MEASURE_VERITY, skel->bss->expected_digest);
+	if (!ASSERT_OK(err, "ioctl_FS_IOC_MEASURE_VERITY"))
+		goto out;
+
+	skel->bss->monitored_pid = getpid();
+	err = test_fsverity__attach(skel);
+	if (!ASSERT_OK(err, "test_fsverity__attach"))
+		goto out;
+
+	/* Reopen the file to trigger the program */
+	close(fd);
+	fd = open(testfile, O_RDONLY);
+	if (!ASSERT_GE(fd, 0, "open_file2"))
+		goto out;
+
+	ASSERT_EQ(skel->bss->got_fsverity, 1, "got_fsverity");
+	ASSERT_EQ(skel->bss->digest_matches, 1, "digest_matches");
+out:
+	close(fd);
+	test_fsverity__destroy(skel);
+	remove(testfile);
+}
+
+void test_fs_kfuncs(void)
+{
+	/* Matches xattr_names in progs/test_get_xattr.c */
+	if (test__start_subtest("user_xattr"))
+		test_get_xattr("user.kfuncs", "hello", true);
+
+	if (test__start_subtest("security_bpf_xattr"))
+		test_get_xattr("security.bpf.xxx", "hello", true);
+
+	if (test__start_subtest("security_bpf_xattr_error"))
+		test_get_xattr("security.bpf", "hello", false);
+
+	if (test__start_subtest("security_selinux_xattr_error"))
+		test_get_xattr("security.selinux", "hello", false);
+
+	if (test__start_subtest("set_remove_xattr"))
+		test_set_remove_xattr();
+
+	if (test__start_subtest("fsverity"))
+		test_fsverity();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c b/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c
new file mode 100644
index 000000000000..0394a1156d99
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "get_branch_snapshot.skel.h"
+
+static int *pfd_array;
+static int cpu_cnt;
+
+static bool is_hypervisor(void)
+{
+	char *line = NULL;
+	bool ret = false;
+	size_t len;
+	FILE *fp;
+
+	fp = fopen("/proc/cpuinfo", "r");
+	if (!fp)
+		return false;
+
+	while (getline(&line, &len, fp) != -1) {
+		if (!strncmp(line, "flags", 5)) {
+			if (strstr(line, "hypervisor") != NULL)
+				ret = true;
+			break;
+		}
+	}
+
+	free(line);
+	fclose(fp);
+	return ret;
+}
+
+static int create_perf_events(void)
+{
+	struct perf_event_attr attr = {0};
+	int cpu;
+
+	/* create perf event */
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_HARDWARE;
+	attr.config = PERF_COUNT_HW_CPU_CYCLES;
+	attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
+	attr.branch_sample_type = PERF_SAMPLE_BRANCH_KERNEL |
+		PERF_SAMPLE_BRANCH_USER | PERF_SAMPLE_BRANCH_ANY;
+
+	cpu_cnt = libbpf_num_possible_cpus();
+	pfd_array = malloc(sizeof(int) * cpu_cnt);
+	if (!pfd_array) {
+		cpu_cnt = 0;
+		return 1;
+	}
+
+	for (cpu = 0; cpu < cpu_cnt; cpu++) {
+		pfd_array[cpu] = syscall(__NR_perf_event_open, &attr,
+					 -1, cpu, -1, PERF_FLAG_FD_CLOEXEC);
+		if (pfd_array[cpu] < 0)
+			break;
+	}
+
+	return cpu == 0;
+}
+
+static void close_perf_events(void)
+{
+	int cpu, fd;
+
+	for (cpu = 0; cpu < cpu_cnt; cpu++) {
+		fd = pfd_array[cpu];
+		if (fd < 0)
+			break;
+		close(fd);
+	}
+	free(pfd_array);
+}
+
+void serial_test_get_branch_snapshot(void)
+{
+	struct get_branch_snapshot *skel = NULL;
+	int err;
+
+	/* Skip the test before we fix LBR snapshot for hypervisor. */
+	if (is_hypervisor()) {
+		test__skip();
+		return;
+	}
+
+	if (create_perf_events()) {
+		test__skip();  /* system doesn't support LBR */
+		goto cleanup;
+	}
+
+	skel = get_branch_snapshot__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "get_branch_snapshot__open_and_load"))
+		goto cleanup;
+
+	err = kallsyms_find("bpf_testmod_loop_test", &skel->bss->address_low);
+	if (!ASSERT_OK(err, "kallsyms_find"))
+		goto cleanup;
+
+	/* Just a guess for the end of this function, as module functions
+	 * in /proc/kallsyms could come in any order.
+	 */
+	skel->bss->address_high = skel->bss->address_low + 128;
+
+	err = get_branch_snapshot__attach(skel);
+	if (!ASSERT_OK(err, "get_branch_snapshot__attach"))
+		goto cleanup;
+
+	trigger_module_test_read(100);
+
+	if (skel->bss->total_entries < 16) {
+		/* too few entries for the hit/waste test */
+		test__skip();
+		goto cleanup;
+	}
+
+	ASSERT_GT(skel->bss->test1_hits, 6, "find_looptest_in_lbr");
+
+	/* Given we stop LBR in software, we will waste a few entries.
+	 * But we should try to waste as few as possible entries. We are at
+	 * about 7 on x86_64 systems.
+	 * Add a check for < 10 so that we get heads-up when something
+	 * changes and wastes too many entries.
+	 */
+	ASSERT_LT(skel->bss->wasted_entries, 10, "check_wasted_entries");
+
+cleanup:
+	get_branch_snapshot__destroy(skel);
+	close_perf_events();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c b/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c
new file mode 100644
index 000000000000..64a9c95d4acf
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/get_func_args_test.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "get_func_args_test.skel.h"
+
+void test_get_func_args_test(void)
+{
+	struct get_func_args_test *skel = NULL;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	skel = get_func_args_test__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "get_func_args_test__open_and_load"))
+		return;
+
+	err = get_func_args_test__attach(skel);
+	if (!ASSERT_OK(err, "get_func_args_test__attach"))
+		goto cleanup;
+
+	/* This runs bpf_fentry_test* functions and triggers
+	 * fentry/fexit programs.
+	 */
+	prog_fd = bpf_program__fd(skel->progs.test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	/* This runs bpf_modify_return_test function and triggers
+	 * fmod_ret_test and fexit_test programs.
+	 */
+	prog_fd = bpf_program__fd(skel->progs.fmod_ret_test);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+
+	ASSERT_EQ(topts.retval >> 16, 1, "test_run");
+	ASSERT_EQ(topts.retval & 0xffff, 1234 + 29, "test_run");
+
+	ASSERT_EQ(skel->bss->test1_result, 1, "test1_result");
+	ASSERT_EQ(skel->bss->test2_result, 1, "test2_result");
+	ASSERT_EQ(skel->bss->test3_result, 1, "test3_result");
+	ASSERT_EQ(skel->bss->test4_result, 1, "test4_result");
+
+cleanup:
+	get_func_args_test__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c
new file mode 100644
index 000000000000..c40242dfa8fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/get_func_ip_test.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "get_func_ip_test.skel.h"
+#include "get_func_ip_uprobe_test.skel.h"
+
+static noinline void uprobe_trigger(void)
+{
+}
+
+static void test_function_entry(void)
+{
+	struct get_func_ip_test *skel = NULL;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	skel = get_func_ip_test__open();
+	if (!ASSERT_OK_PTR(skel, "get_func_ip_test__open"))
+		return;
+
+	err = get_func_ip_test__load(skel);
+	if (!ASSERT_OK(err, "get_func_ip_test__load"))
+		goto cleanup;
+
+	err = get_func_ip_test__attach(skel);
+	if (!ASSERT_OK(err, "get_func_ip_test__attach"))
+		goto cleanup;
+
+	skel->bss->uprobe_trigger = (unsigned long) uprobe_trigger;
+
+	prog_fd = bpf_program__fd(skel->progs.test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	prog_fd = bpf_program__fd(skel->progs.test5);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "test_run");
+
+	uprobe_trigger();
+
+	ASSERT_EQ(skel->bss->test1_result, 1, "test1_result");
+	ASSERT_EQ(skel->bss->test2_result, 1, "test2_result");
+	ASSERT_EQ(skel->bss->test3_result, 1, "test3_result");
+	ASSERT_EQ(skel->bss->test4_result, 1, "test4_result");
+	ASSERT_EQ(skel->bss->test5_result, 1, "test5_result");
+	ASSERT_EQ(skel->bss->test7_result, 1, "test7_result");
+	ASSERT_EQ(skel->bss->test8_result, 1, "test8_result");
+
+cleanup:
+	get_func_ip_test__destroy(skel);
+}
+
+#ifdef __x86_64__
+extern void uprobe_trigger_body(void);
+asm(
+".globl uprobe_trigger_body\n"
+".type uprobe_trigger_body, @function\n"
+"uprobe_trigger_body:\n"
+"	nop\n"
+"	ret\n"
+);
+
+static void test_function_body_kprobe(void)
+{
+	struct get_func_ip_test *skel = NULL;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	LIBBPF_OPTS(bpf_kprobe_opts, kopts);
+	struct bpf_link *link6 = NULL;
+	int err, prog_fd;
+
+	skel = get_func_ip_test__open();
+	if (!ASSERT_OK_PTR(skel, "get_func_ip_test__open"))
+		return;
+
+	/* test6 is x86_64 specific and is disabled by default,
+	 * enable it for body test.
+	 */
+	bpf_program__set_autoload(skel->progs.test6, true);
+
+	err = get_func_ip_test__load(skel);
+	if (!ASSERT_OK(err, "get_func_ip_test__load"))
+		goto cleanup;
+
+	kopts.offset = skel->kconfig->CONFIG_X86_KERNEL_IBT ? 9 : 5;
+
+	link6 = bpf_program__attach_kprobe_opts(skel->progs.test6, "bpf_fentry_test6", &kopts);
+	if (!ASSERT_OK_PTR(link6, "link6"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(skel->bss->test6_result, 1, "test6_result");
+
+cleanup:
+	bpf_link__destroy(link6);
+	get_func_ip_test__destroy(skel);
+}
+
+static void test_function_body_uprobe(void)
+{
+	struct get_func_ip_uprobe_test *skel = NULL;
+	int err;
+
+	skel = get_func_ip_uprobe_test__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "get_func_ip_uprobe_test__open_and_load"))
+		return;
+
+	err = get_func_ip_uprobe_test__attach(skel);
+	if (!ASSERT_OK(err, "get_func_ip_test__attach"))
+		goto cleanup;
+
+	skel->bss->uprobe_trigger_body = (unsigned long) uprobe_trigger_body;
+
+	uprobe_trigger_body();
+
+	ASSERT_EQ(skel->bss->test1_result, 1, "test1_result");
+
+cleanup:
+	get_func_ip_uprobe_test__destroy(skel);
+}
+
+static void test_function_body(void)
+{
+	test_function_body_kprobe();
+	test_function_body_uprobe();
+}
+#else
+#define test_function_body()
+#endif
+
+void test_get_func_ip_test(void)
+{
+	test_function_entry();
+	test_function_body();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
new file mode 100644
index 000000000000..858e0575f502
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/get_stack_raw_tp.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+
+#define MAX_CNT_RAWTP	10ull
+#define MAX_STACK_RAWTP	100
+
+static int duration = 0;
+
+struct get_stack_trace_t {
+	int pid;
+	int kern_stack_size;
+	int user_stack_size;
+	int user_stack_buildid_size;
+	__u64 kern_stack[MAX_STACK_RAWTP];
+	__u64 user_stack[MAX_STACK_RAWTP];
+	struct bpf_stack_build_id user_stack_buildid[MAX_STACK_RAWTP];
+};
+
+static void get_stack_print_output(void *ctx, int cpu, void *data, __u32 size)
+{
+	bool good_kern_stack = false, good_user_stack = false;
+	const char *nonjit_func = "___bpf_prog_run";
+	/* perfbuf-submitted data is 4-byte aligned, but we need 8-byte
+	 * alignment, so copy data into a local variable, for simplicity
+	 */
+	struct get_stack_trace_t e;
+	int i, num_stack;
+	struct ksym *ks;
+
+	memset(&e, 0, sizeof(e));
+	memcpy(&e, data, size <= sizeof(e) ? size : sizeof(e));
+
+	if (size < sizeof(struct get_stack_trace_t)) {
+		__u64 *raw_data = data;
+		bool found = false;
+
+		num_stack = size / sizeof(__u64);
+		/* If jit is enabled, we do not have a good way to
+		 * verify the sanity of the kernel stack. So we
+		 * just assume it is good if the stack is not empty.
+		 * This could be improved in the future.
+		 */
+		if (env.jit_enabled) {
+			found = num_stack > 0;
+		} else {
+			for (i = 0; i < num_stack; i++) {
+				ks = ksym_search(raw_data[i]);
+				if (ks && (strcmp(ks->name, nonjit_func) == 0)) {
+					found = true;
+					break;
+				}
+			}
+		}
+		if (found) {
+			good_kern_stack = true;
+			good_user_stack = true;
+		}
+	} else {
+		num_stack = e.kern_stack_size / sizeof(__u64);
+		if (env.jit_enabled) {
+			good_kern_stack = num_stack > 0;
+		} else {
+			for (i = 0; i < num_stack; i++) {
+				ks = ksym_search(e.kern_stack[i]);
+				if (ks && (strcmp(ks->name, nonjit_func) == 0)) {
+					good_kern_stack = true;
+					break;
+				}
+			}
+		}
+		if (e.user_stack_size > 0 && e.user_stack_buildid_size > 0)
+			good_user_stack = true;
+	}
+
+	if (!good_kern_stack)
+	    CHECK(!good_kern_stack, "kern_stack", "corrupted kernel stack\n");
+	if (!good_user_stack)
+	    CHECK(!good_user_stack, "user_stack", "corrupted user stack\n");
+}
+
+void test_get_stack_raw_tp(void)
+{
+	const char *file = "./test_get_stack_rawtp.bpf.o";
+	const char *file_err = "./test_get_stack_rawtp_err.bpf.o";
+	const char *prog_name = "bpf_prog1";
+	int i, err, prog_fd, exp_cnt = MAX_CNT_RAWTP;
+	struct perf_buffer *pb = NULL;
+	struct bpf_link *link = NULL;
+	struct timespec tv = {0, 10};
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	struct bpf_map *map;
+	cpu_set_t cpu_set;
+
+	err = bpf_prog_test_load(file_err, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+	if (CHECK(err >= 0, "prog_load raw tp", "err %d errno %d\n", err, errno))
+		return;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+	if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, prog_name);
+	if (CHECK(!prog, "find_probe", "prog '%s' not found\n", prog_name))
+		goto close_prog;
+
+	map = bpf_object__find_map_by_name(obj, "perfmap");
+	if (CHECK(!map, "bpf_find_map", "not found\n"))
+		goto close_prog;
+
+	err = load_kallsyms();
+	if (CHECK(err < 0, "load_kallsyms", "err %d errno %d\n", err, errno))
+		goto close_prog;
+
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	if (CHECK(err, "set_affinity", "err %d, errno %d\n", err, errno))
+		goto close_prog;
+
+	link = bpf_program__attach_raw_tracepoint(prog, "sys_enter");
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
+		goto close_prog;
+
+	pb = perf_buffer__new(bpf_map__fd(map), 8, get_stack_print_output,
+			      NULL, NULL, NULL);
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
+		goto close_prog;
+
+	/* trigger some syscall action */
+	for (i = 0; i < MAX_CNT_RAWTP; i++)
+		nanosleep(&tv, NULL);
+
+	while (exp_cnt > 0) {
+		err = perf_buffer__poll(pb, 100);
+		if (err < 0 && CHECK(err < 0, "pb__poll", "err %d\n", err))
+			goto close_prog;
+		exp_cnt -= err;
+	}
+
+close_prog:
+	bpf_link__destroy(link);
+	perf_buffer__free(pb);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c b/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c
new file mode 100644
index 000000000000..2715c68301f5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/get_stackid_cannot_attach.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include <test_progs.h>
+#include "test_stacktrace_build_id.skel.h"
+
+void test_get_stackid_cannot_attach(void)
+{
+	struct perf_event_attr attr = {
+		/* .type = PERF_TYPE_SOFTWARE, */
+		.type = PERF_TYPE_HARDWARE,
+		.config = PERF_COUNT_HW_CPU_CYCLES,
+		.precise_ip = 1,
+		.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_BRANCH_STACK,
+		.branch_sample_type = PERF_SAMPLE_BRANCH_USER |
+			PERF_SAMPLE_BRANCH_NO_FLAGS |
+			PERF_SAMPLE_BRANCH_NO_CYCLES |
+			PERF_SAMPLE_BRANCH_CALL_STACK,
+		.sample_period = 5000,
+		.size = sizeof(struct perf_event_attr),
+	};
+	struct test_stacktrace_build_id *skel;
+	__u32 duration = 0;
+	int pmu_fd, err;
+
+	skel = test_stacktrace_build_id__open();
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	/* override program type */
+	bpf_program__set_type(skel->progs.oncpu, BPF_PROG_TYPE_PERF_EVENT);
+
+	err = test_stacktrace_build_id__load(skel);
+	if (CHECK(err, "skel_load", "skeleton load failed: %d\n", err))
+		goto cleanup;
+
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+	if (pmu_fd < 0 && (errno == ENOENT || errno == EOPNOTSUPP)) {
+		printf("%s:SKIP:cannot open PERF_COUNT_HW_CPU_CYCLES with precise_ip > 0\n",
+		       __func__);
+		test__skip();
+		goto cleanup;
+	}
+	if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n",
+		  pmu_fd, errno))
+		goto cleanup;
+
+	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
+							   pmu_fd);
+	ASSERT_ERR_PTR(skel->links.oncpu, "attach_perf_event_no_callchain");
+	close(pmu_fd);
+
+	/* add PERF_SAMPLE_CALLCHAIN, attach should succeed */
+	attr.sample_type |= PERF_SAMPLE_CALLCHAIN;
+
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+
+	if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n",
+		  pmu_fd, errno))
+		goto cleanup;
+
+	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
+							   pmu_fd);
+	ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event_callchain");
+	bpf_link__destroy(skel->links.oncpu);
+	close(pmu_fd);
+
+	/* add exclude_callchain_kernel, attach should fail */
+	attr.exclude_callchain_kernel = 1;
+
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+
+	if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n",
+		  pmu_fd, errno))
+		goto cleanup;
+
+	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
+							   pmu_fd);
+	ASSERT_ERR_PTR(skel->links.oncpu, "attach_perf_event_exclude_callchain_kernel");
+	close(pmu_fd);
+
+cleanup:
+	test_stacktrace_build_id__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/global_data.c b/tools/testing/selftests/bpf/prog_tests/global_data.c
new file mode 100644
index 000000000000..fadfb64e2a71
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/global_data.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void test_global_data_number(struct bpf_object *obj, __u32 duration)
+{
+	int i, err, map_fd;
+	__u64 num;
+
+	map_fd = bpf_find_map(__func__, obj, "result_number");
+	if (CHECK_FAIL(map_fd < 0))
+		return;
+
+	struct {
+		char *name;
+		uint32_t key;
+		__u64 num;
+	} tests[] = {
+		{ "relocate .bss reference",     0, 0 },
+		{ "relocate .data reference",    1, 42 },
+		{ "relocate .rodata reference",  2, 24 },
+		{ "relocate .bss reference",     3, 0 },
+		{ "relocate .data reference",    4, 0xffeeff },
+		{ "relocate .rodata reference",  5, 0xabab },
+		{ "relocate .bss reference",     6, 1234 },
+		{ "relocate .bss reference",     7, 0 },
+		{ "relocate .rodata reference",  8, 0xab },
+		{ "relocate .rodata reference",  9, 0x1111111111111111 },
+		{ "relocate .rodata reference", 10, ~0 },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		err = bpf_map_lookup_elem(map_fd, &tests[i].key, &num);
+		CHECK(err || num != tests[i].num, tests[i].name,
+		      "err %d result %llx expected %llx\n",
+		      err, num, tests[i].num);
+	}
+}
+
+static void test_global_data_string(struct bpf_object *obj, __u32 duration)
+{
+	int i, err, map_fd;
+	char str[32];
+
+	map_fd = bpf_find_map(__func__, obj, "result_string");
+	if (CHECK_FAIL(map_fd < 0))
+		return;
+
+	struct {
+		char *name;
+		uint32_t key;
+		char str[32];
+	} tests[] = {
+		{ "relocate .rodata reference", 0, "abcdefghijklmnopqrstuvwxyz" },
+		{ "relocate .data reference",   1, "abcdefghijklmnopqrstuvwxyz" },
+		{ "relocate .bss reference",    2, "" },
+		{ "relocate .data reference",   3, "abcdexghijklmnopqrstuvwxyz" },
+		{ "relocate .bss reference",    4, "\0\0hello" },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		err = bpf_map_lookup_elem(map_fd, &tests[i].key, str);
+		CHECK(err || memcmp(str, tests[i].str, sizeof(str)),
+		      tests[i].name, "err %d result \'%s\' expected \'%s\'\n",
+		      err, str, tests[i].str);
+	}
+}
+
+struct foo {
+	__u8  a;
+	__u32 b;
+	__u64 c;
+};
+
+static void test_global_data_struct(struct bpf_object *obj, __u32 duration)
+{
+	int i, err, map_fd;
+	struct foo val;
+
+	map_fd = bpf_find_map(__func__, obj, "result_struct");
+	if (CHECK_FAIL(map_fd < 0))
+		return;
+
+	struct {
+		char *name;
+		uint32_t key;
+		struct foo val;
+	} tests[] = {
+		{ "relocate .rodata reference", 0, { 42, 0xfefeefef, 0x1111111111111111ULL, } },
+		{ "relocate .bss reference",    1, { } },
+		{ "relocate .rodata reference", 2, { } },
+		{ "relocate .data reference",   3, { 41, 0xeeeeefef, 0x2111111111111111ULL, } },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		err = bpf_map_lookup_elem(map_fd, &tests[i].key, &val);
+		CHECK(err || memcmp(&val, &tests[i].val, sizeof(val)),
+		      tests[i].name, "err %d result { %u, %u, %llu } expected { %u, %u, %llu }\n",
+		      err, val.a, val.b, val.c, tests[i].val.a, tests[i].val.b, tests[i].val.c);
+	}
+}
+
+static void test_global_data_rdonly(struct bpf_object *obj, __u32 duration)
+{
+	int err = -ENOMEM, map_fd, zero = 0;
+	struct bpf_map *map, *map2;
+	__u8 *buff;
+
+	map = bpf_object__find_map_by_name(obj, "test_glo.rodata");
+	if (!ASSERT_OK_PTR(map, "map"))
+		return;
+	if (!ASSERT_TRUE(bpf_map__is_internal(map), "is_internal"))
+		return;
+
+	/* ensure we can lookup internal maps by their ELF names */
+	map2 = bpf_object__find_map_by_name(obj, ".rodata");
+	if (!ASSERT_EQ(map, map2, "same_maps"))
+		return;
+
+	map_fd = bpf_map__fd(map);
+	if (CHECK_FAIL(map_fd < 0))
+		return;
+
+	buff = malloc(bpf_map__value_size(map));
+	if (buff)
+		err = bpf_map_update_elem(map_fd, &zero, buff, 0);
+	free(buff);
+	CHECK(!err || errno != EPERM, "test .rodata read-only map",
+	      "err %d errno %d\n", err, errno);
+}
+
+void test_global_data(void)
+{
+	const char *file = "./test_global_data.bpf.o";
+	struct bpf_object *obj;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (!ASSERT_OK(err, "load program"))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "pass global data run err");
+	ASSERT_OK(topts.retval, "pass global data run retval");
+
+	test_global_data_number(obj, topts.duration);
+	test_global_data_string(obj, topts.duration);
+	test_global_data_struct(obj, topts.duration);
+	test_global_data_rdonly(obj, topts.duration);
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/global_data_init.c b/tools/testing/selftests/bpf/prog_tests/global_data_init.c
new file mode 100644
index 000000000000..8466332d7406
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/global_data_init.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_global_data_init(void)
+{
+	const char *file = "./test_global_data.bpf.o";
+	int err = -ENOMEM, map_fd, zero = 0;
+	__u8 *buff = NULL, *newval = NULL;
+	struct bpf_object *obj;
+	struct bpf_map *map;
+        __u32 duration = 0;
+	size_t sz;
+
+	obj = bpf_object__open_file(file, NULL);
+	err = libbpf_get_error(obj);
+	if (CHECK_FAIL(err))
+		return;
+
+	map = bpf_object__find_map_by_name(obj, ".rodata");
+	if (CHECK_FAIL(!map || !bpf_map__is_internal(map)))
+		goto out;
+
+	sz = bpf_map__value_size(map);
+	newval = malloc(sz);
+	if (CHECK_FAIL(!newval))
+		goto out;
+
+	memset(newval, 0, sz);
+	/* wrong size, should fail */
+	err = bpf_map__set_initial_value(map, newval, sz - 1);
+	if (CHECK(!err, "reject set initial value wrong size", "err %d\n", err))
+		goto out;
+
+	err = bpf_map__set_initial_value(map, newval, sz);
+	if (CHECK(err, "set initial value", "err %d\n", err))
+		goto out;
+
+	err = bpf_object__load(obj);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	map_fd = bpf_map__fd(map);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	buff = malloc(sz);
+	if (buff)
+		err = bpf_map_lookup_elem(map_fd, &zero, buff);
+	if (CHECK(!buff || err || memcmp(buff, newval, sz),
+		  "compare .rodata map data override",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	memset(newval, 1, sz);
+	/* object loaded - should fail */
+	err = bpf_map__set_initial_value(map, newval, sz);
+	CHECK(!err, "reject set initial value after load", "err %d\n", err);
+out:
+	free(buff);
+	free(newval);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/global_func_args.c b/tools/testing/selftests/bpf/prog_tests/global_func_args.c
new file mode 100644
index 000000000000..d997099f62d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/global_func_args.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "test_progs.h"
+#include "network_helpers.h"
+
+static __u32 duration;
+
+static void test_global_func_args0(struct bpf_object *obj)
+{
+	int err, i, map_fd, actual_value;
+	const char *map_name = "values";
+
+	map_fd = bpf_find_map(__func__, obj, map_name);
+	if (CHECK(map_fd < 0, "bpf_find_map", "cannot find BPF map %s: %s\n",
+		map_name, strerror(errno)))
+		return;
+
+	struct {
+		const char *descr;
+		int expected_value;
+	} tests[] = {
+		{"passing NULL pointer", 0},
+		{"returning value", 1},
+		{"reading local variable", 100 },
+		{"writing local variable", 101 },
+		{"reading global variable", 42 },
+		{"writing global variable", 43 },
+		{"writing to pointer-to-pointer", 1 },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(tests); ++i) {
+		const int expected_value = tests[i].expected_value;
+
+		err = bpf_map_lookup_elem(map_fd, &i, &actual_value);
+
+		CHECK(err || actual_value != expected_value, tests[i].descr,
+			 "err %d result %d expected %d\n", err, actual_value, expected_value);
+	}
+}
+
+void test_global_func_args(void)
+{
+	const char *file = "./test_global_func_args.bpf.o";
+	struct bpf_object *obj;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
+	if (CHECK(err, "load program", "error %d loading %s\n", err, file))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_OK(topts.retval, "test_run retval");
+
+	test_global_func_args0(obj);
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/global_func_dead_code.c b/tools/testing/selftests/bpf/prog_tests/global_func_dead_code.c
new file mode 100644
index 000000000000..65309894b27a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/global_func_dead_code.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "verifier_global_subprogs.skel.h"
+#include "freplace_dead_global_func.skel.h"
+
+void test_global_func_dead_code(void)
+{
+	struct verifier_global_subprogs *tgt_skel = NULL;
+	struct freplace_dead_global_func *skel = NULL;
+	char log_buf[4096];
+	int err, tgt_fd;
+
+	/* first, try to load target with good global subprog */
+	tgt_skel = verifier_global_subprogs__open();
+	if (!ASSERT_OK_PTR(tgt_skel, "tgt_skel_good_open"))
+		return;
+
+	bpf_program__set_autoload(tgt_skel->progs.chained_global_func_calls_success, true);
+
+	err = verifier_global_subprogs__load(tgt_skel);
+	if (!ASSERT_OK(err, "tgt_skel_good_load"))
+		goto out;
+
+	tgt_fd = bpf_program__fd(tgt_skel->progs.chained_global_func_calls_success);
+
+	/* Attach to good non-eliminated subprog */
+	skel = freplace_dead_global_func__open();
+	if (!ASSERT_OK_PTR(skel, "skel_good_open"))
+		goto out;
+
+	err = bpf_program__set_attach_target(skel->progs.freplace_prog, tgt_fd, "global_good");
+	ASSERT_OK(err, "attach_target_good");
+
+	err = freplace_dead_global_func__load(skel);
+	if (!ASSERT_OK(err, "skel_good_load"))
+		goto out;
+
+	freplace_dead_global_func__destroy(skel);
+
+	/* Try attaching to dead code-eliminated subprog */
+	skel = freplace_dead_global_func__open();
+	if (!ASSERT_OK_PTR(skel, "skel_dead_open"))
+		goto out;
+
+	bpf_program__set_log_buf(skel->progs.freplace_prog, log_buf, sizeof(log_buf));
+	err = bpf_program__set_attach_target(skel->progs.freplace_prog, tgt_fd, "global_dead");
+	ASSERT_OK(err, "attach_target_dead");
+
+	err = freplace_dead_global_func__load(skel);
+	if (!ASSERT_ERR(err, "skel_dead_load"))
+		goto out;
+
+	ASSERT_HAS_SUBSTR(log_buf, "Subprog global_dead doesn't exist", "dead_subprog_missing_msg");
+
+out:
+	verifier_global_subprogs__destroy(tgt_skel);
+	freplace_dead_global_func__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/global_map_resize.c b/tools/testing/selftests/bpf/prog_tests/global_map_resize.c
new file mode 100644
index 000000000000..56b5baef35c8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/global_map_resize.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include "test_global_map_resize.skel.h"
+#include "test_progs.h"
+
+static void run_prog_bss_array_sum(void)
+{
+	(void)syscall(__NR_getpid);
+}
+
+static void run_prog_data_array_sum(void)
+{
+	(void)syscall(__NR_getuid);
+}
+
+static void global_map_resize_bss_subtest(void)
+{
+	int err;
+	struct test_global_map_resize *skel;
+	struct bpf_map *map;
+	const __u32 desired_sz = sizeof(skel->bss->sum) + sysconf(_SC_PAGE_SIZE) * 2;
+	size_t array_len, actual_sz, new_sz;
+
+	skel = test_global_map_resize__open();
+	if (!ASSERT_OK_PTR(skel, "test_global_map_resize__open"))
+		goto teardown;
+
+	/* set some initial value before resizing.
+	 * it is expected this non-zero value will be preserved
+	 * while resizing.
+	 */
+	skel->bss->array[0] = 1;
+
+	/* resize map value and verify the new size */
+	map = skel->maps.bss;
+	err = bpf_map__set_value_size(map, desired_sz);
+	if (!ASSERT_OK(err, "bpf_map__set_value_size"))
+		goto teardown;
+	if (!ASSERT_EQ(bpf_map__value_size(map), desired_sz, "resize"))
+		goto teardown;
+
+	new_sz = sizeof(skel->data_percpu_arr->percpu_arr[0]) * libbpf_num_possible_cpus();
+	err = bpf_map__set_value_size(skel->maps.data_percpu_arr, new_sz);
+	ASSERT_OK(err, "percpu_arr_resize");
+
+	/* set the expected number of elements based on the resized array */
+	array_len = (desired_sz - sizeof(skel->bss->sum)) / sizeof(skel->bss->array[0]);
+	if (!ASSERT_GT(array_len, 1, "array_len"))
+		goto teardown;
+
+	skel->bss = bpf_map__initial_value(skel->maps.bss, &actual_sz);
+	if (!ASSERT_OK_PTR(skel->bss, "bpf_map__initial_value (ptr)"))
+		goto teardown;
+	if (!ASSERT_EQ(actual_sz, desired_sz, "bpf_map__initial_value (size)"))
+		goto teardown;
+
+	/* fill the newly resized array with ones,
+	 * skipping the first element which was previously set
+	 */
+	for (int i = 1; i < array_len; i++)
+		skel->bss->array[i] = 1;
+
+	/* set global const values before loading */
+	skel->rodata->pid = getpid();
+	skel->rodata->bss_array_len = array_len;
+	skel->rodata->data_array_len = 1;
+
+	err = test_global_map_resize__load(skel);
+	if (!ASSERT_OK(err, "test_global_map_resize__load"))
+		goto teardown;
+	err = test_global_map_resize__attach(skel);
+	if (!ASSERT_OK(err, "test_global_map_resize__attach"))
+		goto teardown;
+
+	/* run the bpf program which will sum the contents of the array.
+	 * since the array was filled with ones,verify the sum equals array_len
+	 */
+	run_prog_bss_array_sum();
+	if (!ASSERT_EQ(skel->bss->sum, array_len, "sum"))
+		goto teardown;
+
+teardown:
+	test_global_map_resize__destroy(skel);
+}
+
+static void global_map_resize_data_subtest(void)
+{
+	struct test_global_map_resize *skel;
+	struct bpf_map *map;
+	const __u32 desired_sz = sysconf(_SC_PAGE_SIZE) * 2;
+	size_t array_len, actual_sz, new_sz;
+	int err;
+
+	skel = test_global_map_resize__open();
+	if (!ASSERT_OK_PTR(skel, "test_global_map_resize__open"))
+		goto teardown;
+
+	/* set some initial value before resizing.
+	 * it is expected this non-zero value will be preserved
+	 * while resizing.
+	 */
+	skel->data_custom->my_array[0] = 1;
+
+	/* resize map value and verify the new size */
+	map = skel->maps.data_custom;
+	err = bpf_map__set_value_size(map, desired_sz);
+	if (!ASSERT_OK(err, "bpf_map__set_value_size"))
+		goto teardown;
+	if (!ASSERT_EQ(bpf_map__value_size(map), desired_sz, "resize"))
+		goto teardown;
+
+	new_sz = sizeof(skel->data_percpu_arr->percpu_arr[0]) * libbpf_num_possible_cpus();
+	err = bpf_map__set_value_size(skel->maps.data_percpu_arr, new_sz);
+	ASSERT_OK(err, "percpu_arr_resize");
+
+	/* set the expected number of elements based on the resized array */
+	array_len = (desired_sz - sizeof(skel->bss->sum)) / sizeof(skel->data_custom->my_array[0]);
+	if (!ASSERT_GT(array_len, 1, "array_len"))
+		goto teardown;
+
+	skel->data_custom = bpf_map__initial_value(skel->maps.data_custom, &actual_sz);
+	if (!ASSERT_OK_PTR(skel->data_custom, "bpf_map__initial_value (ptr)"))
+		goto teardown;
+	if (!ASSERT_EQ(actual_sz, desired_sz, "bpf_map__initial_value (size)"))
+		goto teardown;
+
+	/* fill the newly resized array with ones,
+	 * skipping the first element which was previously set
+	 */
+	for (int i = 1; i < array_len; i++)
+		skel->data_custom->my_array[i] = 1;
+
+	/* set global const values before loading */
+	skel->rodata->pid = getpid();
+	skel->rodata->bss_array_len = 1;
+	skel->rodata->data_array_len = array_len;
+
+	err = test_global_map_resize__load(skel);
+	if (!ASSERT_OK(err, "test_global_map_resize__load"))
+		goto teardown;
+	err = test_global_map_resize__attach(skel);
+	if (!ASSERT_OK(err, "test_global_map_resize__attach"))
+		goto teardown;
+
+	/* run the bpf program which will sum the contents of the array.
+	 * since the array was filled with ones,verify the sum equals array_len
+	 */
+	run_prog_data_array_sum();
+	if (!ASSERT_EQ(skel->bss->sum, array_len, "sum"))
+		goto teardown;
+
+teardown:
+	test_global_map_resize__destroy(skel);
+}
+
+static void global_map_resize_invalid_subtest(void)
+{
+	int err;
+	struct test_global_map_resize *skel;
+	struct bpf_map *map;
+	__u32 element_sz, desired_sz;
+
+	skel = test_global_map_resize__open();
+	if (!ASSERT_OK_PTR(skel, "test_global_map_resize__open"))
+		return;
+
+	 /* attempt to resize a global datasec map to size
+	  * which does NOT align with array
+	  */
+	map = skel->maps.data_custom;
+	if (!ASSERT_NEQ(bpf_map__btf_value_type_id(map), 0, ".data.custom initial btf"))
+		goto teardown;
+	/* set desired size a fraction of element size beyond an aligned size */
+	element_sz = sizeof(skel->data_custom->my_array[0]);
+	desired_sz = element_sz + element_sz / 2;
+	/* confirm desired size does NOT align with array */
+	if (!ASSERT_NEQ(desired_sz % element_sz, 0, "my_array alignment"))
+		goto teardown;
+	err = bpf_map__set_value_size(map, desired_sz);
+	/* confirm resize is OK but BTF info is cleared */
+	if (!ASSERT_OK(err, ".data.custom bpf_map__set_value_size") ||
+	    !ASSERT_EQ(bpf_map__btf_key_type_id(map), 0, ".data.custom clear btf key") ||
+	    !ASSERT_EQ(bpf_map__btf_value_type_id(map), 0, ".data.custom clear btf val"))
+		goto teardown;
+
+	/* attempt to resize a global datasec map whose only var is NOT an array */
+	map = skel->maps.data_non_array;
+	if (!ASSERT_NEQ(bpf_map__btf_value_type_id(map), 0, ".data.non_array initial btf"))
+		goto teardown;
+	/* set desired size to arbitrary value */
+	desired_sz = 1024;
+	err = bpf_map__set_value_size(map, desired_sz);
+	/* confirm resize is OK but BTF info is cleared */
+	if (!ASSERT_OK(err, ".data.non_array bpf_map__set_value_size") ||
+	    !ASSERT_EQ(bpf_map__btf_key_type_id(map), 0, ".data.non_array clear btf key") ||
+	    !ASSERT_EQ(bpf_map__btf_value_type_id(map), 0, ".data.non_array clear btf val"))
+		goto teardown;
+
+	/* attempt to resize a global datasec map
+	 * whose last var is NOT an array
+	 */
+	map = skel->maps.data_array_not_last;
+	if (!ASSERT_NEQ(bpf_map__btf_value_type_id(map), 0, ".data.array_not_last initial btf"))
+		goto teardown;
+	/* set desired size to a multiple of element size */
+	element_sz = sizeof(skel->data_array_not_last->my_array_first[0]);
+	desired_sz = element_sz * 8;
+	/* confirm desired size aligns with array */
+	if (!ASSERT_EQ(desired_sz % element_sz, 0, "my_array_first alignment"))
+		goto teardown;
+	err = bpf_map__set_value_size(map, desired_sz);
+	/* confirm resize is OK but BTF info is cleared */
+	if (!ASSERT_OK(err, ".data.array_not_last bpf_map__set_value_size") ||
+	    !ASSERT_EQ(bpf_map__btf_key_type_id(map), 0, ".data.array_not_last clear btf key") ||
+	    !ASSERT_EQ(bpf_map__btf_value_type_id(map), 0, ".data.array_not_last clear btf val"))
+		goto teardown;
+
+teardown:
+	test_global_map_resize__destroy(skel);
+}
+
+void test_global_map_resize(void)
+{
+	if (test__start_subtest("global_map_resize_bss"))
+		global_map_resize_bss_subtest();
+
+	if (test__start_subtest("global_map_resize_data"))
+		global_map_resize_data_subtest();
+
+	if (test__start_subtest("global_map_resize_invalid"))
+		global_map_resize_invalid_subtest();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/hash_large_key.c b/tools/testing/selftests/bpf/prog_tests/hash_large_key.c
new file mode 100644
index 000000000000..34684c0fc76d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/hash_large_key.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "test_hash_large_key.skel.h"
+
+void test_hash_large_key(void)
+{
+	int err, value = 21, duration = 0, hash_map_fd;
+	struct test_hash_large_key *skel;
+
+	struct bigelement {
+		int a;
+		char b[4096];
+		long long c;
+	} key;
+	bzero(&key, sizeof(key));
+
+	skel = test_hash_large_key__open_and_load();
+	if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
+		return;
+
+	hash_map_fd = bpf_map__fd(skel->maps.hash_map);
+	if (CHECK(hash_map_fd < 0, "bpf_map__fd", "failed\n"))
+		goto cleanup;
+
+	err = test_hash_large_key__attach(skel);
+	if (CHECK(err, "attach_raw_tp", "err %d\n", err))
+		goto cleanup;
+
+	err = bpf_map_update_elem(hash_map_fd, &key, &value, BPF_ANY);
+	if (CHECK(err, "bpf_map_update_elem", "errno=%d\n", errno))
+		goto cleanup;
+
+	key.c = 1;
+	err = bpf_map_lookup_elem(hash_map_fd, &key, &value);
+	if (CHECK(err, "bpf_map_lookup_elem", "errno=%d\n", errno))
+		goto cleanup;
+
+	CHECK_FAIL(value != 42);
+
+cleanup:
+	test_hash_large_key__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/hashmap.c b/tools/testing/selftests/bpf/prog_tests/hashmap.c
new file mode 100644
index 000000000000..d358a223fd2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/hashmap.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * Tests for libbpf's hashmap.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+#include "test_progs.h"
+#include "bpf/hashmap.h"
+#include <stddef.h>
+
+static int duration = 0;
+
+static size_t hash_fn(long k, void *ctx)
+{
+	return k;
+}
+
+static bool equal_fn(long a, long b, void *ctx)
+{
+	return a == b;
+}
+
+static inline size_t next_pow_2(size_t n)
+{
+	size_t r = 1;
+
+	while (r < n)
+		r <<= 1;
+	return r;
+}
+
+static inline size_t exp_cap(size_t sz)
+{
+	size_t r = next_pow_2(sz);
+
+	if (sz * 4 / 3 > r)
+		r <<= 1;
+	return r;
+}
+
+#define ELEM_CNT 62
+
+static void test_hashmap_generic(void)
+{
+	struct hashmap_entry *entry, *tmp;
+	int err, bkt, found_cnt, i;
+	long long found_msk;
+	struct hashmap *map;
+
+	map = hashmap__new(hash_fn, equal_fn, NULL);
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
+		return;
+
+	for (i = 0; i < ELEM_CNT; i++) {
+		long oldk, k = i;
+		long oldv, v = 1024 + i;
+
+		err = hashmap__update(map, k, v, &oldk, &oldv);
+		if (CHECK(err != -ENOENT, "hashmap__update",
+			  "unexpected result: %d\n", err))
+			goto cleanup;
+
+		if (i % 2) {
+			err = hashmap__add(map, k, v);
+		} else {
+			err = hashmap__set(map, k, v, &oldk, &oldv);
+			if (CHECK(oldk != 0 || oldv != 0, "check_kv",
+				  "unexpected k/v: %ld=%ld\n", oldk, oldv))
+				goto cleanup;
+		}
+
+		if (CHECK(err, "elem_add", "failed to add k/v %ld = %ld: %d\n", k, v, err))
+			goto cleanup;
+
+		if (CHECK(!hashmap__find(map, k, &oldv), "elem_find",
+			  "failed to find key %ld\n", k))
+			goto cleanup;
+		if (CHECK(oldv != v, "elem_val", "found value is wrong: %ld\n", oldv))
+			goto cleanup;
+	}
+
+	if (CHECK(hashmap__size(map) != ELEM_CNT, "hashmap__size",
+		  "invalid map size: %zu\n", hashmap__size(map)))
+		goto cleanup;
+	if (CHECK(hashmap__capacity(map) != exp_cap(hashmap__size(map)),
+		  "hashmap_cap",
+		  "unexpected map capacity: %zu\n", hashmap__capacity(map)))
+		goto cleanup;
+
+	found_msk = 0;
+	hashmap__for_each_entry(map, entry, bkt) {
+		long k = entry->key;
+		long v = entry->value;
+
+		found_msk |= 1ULL << k;
+		if (CHECK(v - k != 1024, "check_kv",
+			  "invalid k/v pair: %ld = %ld\n", k, v))
+			goto cleanup;
+	}
+	if (CHECK(found_msk != (1ULL << ELEM_CNT) - 1, "elem_cnt",
+		  "not all keys iterated: %llx\n", found_msk))
+		goto cleanup;
+
+	for (i = 0; i < ELEM_CNT; i++) {
+		long oldk, k = i;
+		long oldv, v = 256 + i;
+
+		err = hashmap__add(map, k, v);
+		if (CHECK(err != -EEXIST, "hashmap__add",
+			  "unexpected add result: %d\n", err))
+			goto cleanup;
+
+		if (i % 2)
+			err = hashmap__update(map, k, v, &oldk, &oldv);
+		else
+			err = hashmap__set(map, k, v, &oldk, &oldv);
+
+		if (CHECK(err, "elem_upd",
+			  "failed to update k/v %ld = %ld: %d\n",
+			  k, v, err))
+			goto cleanup;
+		if (CHECK(!hashmap__find(map, k, &oldv), "elem_find",
+			  "failed to find key %ld\n", k))
+			goto cleanup;
+		if (CHECK(oldv != v, "elem_val",
+			  "found value is wrong: %ld\n", oldv))
+			goto cleanup;
+	}
+
+	if (CHECK(hashmap__size(map) != ELEM_CNT, "hashmap__size",
+		  "invalid updated map size: %zu\n", hashmap__size(map)))
+		goto cleanup;
+	if (CHECK(hashmap__capacity(map) != exp_cap(hashmap__size(map)),
+		  "hashmap__capacity",
+		  "unexpected map capacity: %zu\n", hashmap__capacity(map)))
+		goto cleanup;
+
+	found_msk = 0;
+	hashmap__for_each_entry_safe(map, entry, tmp, bkt) {
+		long k = entry->key;
+		long v = entry->value;
+
+		found_msk |= 1ULL << k;
+		if (CHECK(v - k != 256, "elem_check",
+			  "invalid updated k/v pair: %ld = %ld\n", k, v))
+			goto cleanup;
+	}
+	if (CHECK(found_msk != (1ULL << ELEM_CNT) - 1, "elem_cnt",
+		  "not all keys iterated after update: %llx\n", found_msk))
+		goto cleanup;
+
+	found_cnt = 0;
+	hashmap__for_each_key_entry(map, entry, 0) {
+		found_cnt++;
+	}
+	if (CHECK(!found_cnt, "found_cnt",
+		  "didn't find any entries for key 0\n"))
+		goto cleanup;
+
+	found_msk = 0;
+	found_cnt = 0;
+	hashmap__for_each_key_entry_safe(map, entry, tmp, 0) {
+		long oldk, k;
+		long oldv, v;
+
+		k = entry->key;
+		v = entry->value;
+
+		found_cnt++;
+		found_msk |= 1ULL << k;
+
+		if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
+			  "failed to delete k/v %ld = %ld\n", k, v))
+			goto cleanup;
+		if (CHECK(oldk != k || oldv != v, "check_old",
+			  "invalid deleted k/v: expected %ld = %ld, got %ld = %ld\n",
+			  k, v, oldk, oldv))
+			goto cleanup;
+		if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
+			  "unexpectedly deleted k/v %ld = %ld\n", oldk, oldv))
+			goto cleanup;
+	}
+
+	if (CHECK(!found_cnt || !found_msk, "found_entries",
+		  "didn't delete any key entries\n"))
+		goto cleanup;
+	if (CHECK(hashmap__size(map) != ELEM_CNT - found_cnt, "elem_cnt",
+		  "invalid updated map size (already deleted: %d): %zu\n",
+		  found_cnt, hashmap__size(map)))
+		goto cleanup;
+	if (CHECK(hashmap__capacity(map) != exp_cap(hashmap__size(map)),
+		  "hashmap__capacity",
+		  "unexpected map capacity: %zu\n", hashmap__capacity(map)))
+		goto cleanup;
+
+	hashmap__for_each_entry_safe(map, entry, tmp, bkt) {
+		long oldk, k;
+		long oldv, v;
+
+		k = entry->key;
+		v = entry->value;
+
+		found_cnt++;
+		found_msk |= 1ULL << k;
+
+		if (CHECK(!hashmap__delete(map, k, &oldk, &oldv), "elem_del",
+			  "failed to delete k/v %ld = %ld\n", k, v))
+			goto cleanup;
+		if (CHECK(oldk != k || oldv != v, "elem_check",
+			  "invalid old k/v: expect %ld = %ld, got %ld = %ld\n",
+			  k, v, oldk, oldv))
+			goto cleanup;
+		if (CHECK(hashmap__delete(map, k, &oldk, &oldv), "elem_del",
+			  "unexpectedly deleted k/v %ld = %ld\n", k, v))
+			goto cleanup;
+	}
+
+	if (CHECK(found_cnt != ELEM_CNT || found_msk != (1ULL << ELEM_CNT) - 1,
+		  "found_cnt",
+		  "not all keys were deleted: found_cnt:%d, found_msk:%llx\n",
+		  found_cnt, found_msk))
+		goto cleanup;
+	if (CHECK(hashmap__size(map) != 0, "hashmap__size",
+		  "invalid updated map size (already deleted: %d): %zu\n",
+		  found_cnt, hashmap__size(map)))
+		goto cleanup;
+
+	found_cnt = 0;
+	hashmap__for_each_entry(map, entry, bkt) {
+		CHECK(false, "elem_exists",
+		      "unexpected map entries left: %ld = %ld\n",
+		      entry->key, entry->value);
+		goto cleanup;
+	}
+
+	hashmap__clear(map);
+	hashmap__for_each_entry(map, entry, bkt) {
+		CHECK(false, "elem_exists",
+		      "unexpected map entries left: %ld = %ld\n",
+		      entry->key, entry->value);
+		goto cleanup;
+	}
+
+cleanup:
+	hashmap__free(map);
+}
+
+static size_t str_hash_fn(long a, void *ctx)
+{
+	return str_hash((char *)a);
+}
+
+static bool str_equal_fn(long a, long b, void *ctx)
+{
+	return strcmp((char *)a, (char *)b) == 0;
+}
+
+/* Verify that hashmap interface works with pointer keys and values */
+static void test_hashmap_ptr_iface(void)
+{
+	const char *key, *value, *old_key, *old_value;
+	struct hashmap_entry *cur;
+	struct hashmap *map;
+	int err, i, bkt;
+
+	map = hashmap__new(str_hash_fn, str_equal_fn, NULL);
+	if (CHECK(!map, "hashmap__new", "can't allocate hashmap\n"))
+		goto cleanup;
+
+#define CHECK_STR(fn, var, expected)					\
+	CHECK(strcmp(var, (expected)), (fn),				\
+	      "wrong value of " #var ": '%s' instead of '%s'\n", var, (expected))
+
+	err = hashmap__insert(map, "a", "apricot", HASHMAP_ADD, NULL, NULL);
+	if (CHECK(err, "hashmap__insert", "unexpected error: %d\n", err))
+		goto cleanup;
+
+	err = hashmap__insert(map, "a", "apple", HASHMAP_SET, &old_key, &old_value);
+	if (CHECK(err, "hashmap__insert", "unexpected error: %d\n", err))
+		goto cleanup;
+	CHECK_STR("hashmap__update", old_key, "a");
+	CHECK_STR("hashmap__update", old_value, "apricot");
+
+	err = hashmap__add(map, "b", "banana");
+	if (CHECK(err, "hashmap__add", "unexpected error: %d\n", err))
+		goto cleanup;
+
+	err = hashmap__set(map, "b", "breadfruit", &old_key, &old_value);
+	if (CHECK(err, "hashmap__set", "unexpected error: %d\n", err))
+		goto cleanup;
+	CHECK_STR("hashmap__set", old_key, "b");
+	CHECK_STR("hashmap__set", old_value, "banana");
+
+	err = hashmap__update(map, "b", "blueberry", &old_key, &old_value);
+	if (CHECK(err, "hashmap__update", "unexpected error: %d\n", err))
+		goto cleanup;
+	CHECK_STR("hashmap__update", old_key, "b");
+	CHECK_STR("hashmap__update", old_value, "breadfruit");
+
+	err = hashmap__append(map, "c", "cherry");
+	if (CHECK(err, "hashmap__append", "unexpected error: %d\n", err))
+		goto cleanup;
+
+	if (CHECK(!hashmap__delete(map, "c", &old_key, &old_value),
+		  "hashmap__delete", "expected to have entry for 'c'\n"))
+		goto cleanup;
+	CHECK_STR("hashmap__delete", old_key, "c");
+	CHECK_STR("hashmap__delete", old_value, "cherry");
+
+	CHECK(!hashmap__find(map, "b", &value), "hashmap__find", "can't find value for 'b'\n");
+	CHECK_STR("hashmap__find", value, "blueberry");
+
+	if (CHECK(!hashmap__delete(map, "b", NULL, NULL),
+		  "hashmap__delete", "expected to have entry for 'b'\n"))
+		goto cleanup;
+
+	i = 0;
+	hashmap__for_each_entry(map, cur, bkt) {
+		if (CHECK(i != 0, "hashmap__for_each_entry", "too many entries"))
+			goto cleanup;
+		key = cur->pkey;
+		value = cur->pvalue;
+		CHECK_STR("entry", key, "a");
+		CHECK_STR("entry", value, "apple");
+		i++;
+	}
+#undef CHECK_STR
+
+cleanup:
+	hashmap__free(map);
+}
+
+static size_t collision_hash_fn(long k, void *ctx)
+{
+	return 0;
+}
+
+static void test_hashmap_multimap(void)
+{
+	long k1 = 0, k2 = 1;
+	struct hashmap_entry *entry;
+	struct hashmap *map;
+	long found_msk;
+	int err, bkt;
+
+	/* force collisions */
+	map = hashmap__new(collision_hash_fn, equal_fn, NULL);
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
+		return;
+
+	/* set up multimap:
+	 * [0] -> 1, 2, 4;
+	 * [1] -> 8, 16, 32;
+	 */
+	err = hashmap__append(map, k1, 1);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+	err = hashmap__append(map, k1, 2);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+	err = hashmap__append(map, k1, 4);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+
+	err = hashmap__append(map, k2, 8);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+	err = hashmap__append(map, k2, 16);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+	err = hashmap__append(map, k2, 32);
+	if (CHECK(err, "elem_add", "failed to add k/v: %d\n", err))
+		goto cleanup;
+
+	if (CHECK(hashmap__size(map) != 6, "hashmap_size",
+		  "invalid map size: %zu\n", hashmap__size(map)))
+		goto cleanup;
+
+	/* verify global iteration still works and sees all values */
+	found_msk = 0;
+	hashmap__for_each_entry(map, entry, bkt) {
+		found_msk |= entry->value;
+	}
+	if (CHECK(found_msk != (1 << 6) - 1, "found_msk",
+		  "not all keys iterated: %lx\n", found_msk))
+		goto cleanup;
+
+	/* iterate values for key 1 */
+	found_msk = 0;
+	hashmap__for_each_key_entry(map, entry, k1) {
+		found_msk |= entry->value;
+	}
+	if (CHECK(found_msk != (1 | 2 | 4), "found_msk",
+		  "invalid k1 values: %lx\n", found_msk))
+		goto cleanup;
+
+	/* iterate values for key 2 */
+	found_msk = 0;
+	hashmap__for_each_key_entry(map, entry, k2) {
+		found_msk |= entry->value;
+	}
+	if (CHECK(found_msk != (8 | 16 | 32), "found_msk",
+		  "invalid k2 values: %lx\n", found_msk))
+		goto cleanup;
+
+cleanup:
+	hashmap__free(map);
+}
+
+static void test_hashmap_empty()
+{
+	struct hashmap_entry *entry;
+	int bkt;
+	struct hashmap *map;
+	long k = 0;
+
+	/* force collisions */
+	map = hashmap__new(hash_fn, equal_fn, NULL);
+	if (!ASSERT_OK_PTR(map, "hashmap__new"))
+		goto cleanup;
+
+	if (CHECK(hashmap__size(map) != 0, "hashmap__size",
+		  "invalid map size: %zu\n", hashmap__size(map)))
+		goto cleanup;
+	if (CHECK(hashmap__capacity(map) != 0, "hashmap__capacity",
+		  "invalid map capacity: %zu\n", hashmap__capacity(map)))
+		goto cleanup;
+	if (CHECK(hashmap__find(map, k, NULL), "elem_find",
+		  "unexpected find\n"))
+		goto cleanup;
+	if (CHECK(hashmap__delete(map, k, NULL, NULL), "elem_del",
+		  "unexpected delete\n"))
+		goto cleanup;
+
+	hashmap__for_each_entry(map, entry, bkt) {
+		CHECK(false, "elem_found", "unexpected iterated entry\n");
+		goto cleanup;
+	}
+	hashmap__for_each_key_entry(map, entry, k) {
+		CHECK(false, "key_found", "unexpected key entry\n");
+		goto cleanup;
+	}
+
+cleanup:
+	hashmap__free(map);
+}
+
+void test_hashmap()
+{
+	if (test__start_subtest("generic"))
+		test_hashmap_generic();
+	if (test__start_subtest("multimap"))
+		test_hashmap_multimap();
+	if (test__start_subtest("empty"))
+		test_hashmap_empty();
+	if (test__start_subtest("ptr_iface"))
+		test_hashmap_ptr_iface();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/helper_restricted.c b/tools/testing/selftests/bpf/prog_tests/helper_restricted.c
new file mode 100644
index 000000000000..0354f9b82c65
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/helper_restricted.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "test_helper_restricted.skel.h"
+
+void test_helper_restricted(void)
+{
+	int prog_i = 0, prog_cnt;
+
+	do {
+		struct test_helper_restricted *test;
+		int err;
+
+		test = test_helper_restricted__open();
+		if (!ASSERT_OK_PTR(test, "open"))
+			return;
+
+		prog_cnt = test->skeleton->prog_cnt;
+
+		for (int j = 0; j < prog_cnt; ++j) {
+			struct bpf_program *prog = *test->skeleton->progs[j].prog;
+
+			bpf_program__set_autoload(prog, true);
+		}
+
+		err = test_helper_restricted__load(test);
+		ASSERT_ERR(err, "load_should_fail");
+
+		test_helper_restricted__destroy(test);
+	} while (++prog_i < prog_cnt);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/htab_reuse.c b/tools/testing/selftests/bpf/prog_tests/htab_reuse.c
new file mode 100644
index 000000000000..a742dd994d60
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/htab_reuse.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdbool.h>
+#include <test_progs.h>
+#include "htab_reuse.skel.h"
+
+struct htab_op_ctx {
+	int fd;
+	int loop;
+	bool stop;
+};
+
+struct htab_val {
+	unsigned int lock;
+	unsigned int data;
+};
+
+static void *htab_lookup_fn(void *arg)
+{
+	struct htab_op_ctx *ctx = arg;
+	int i = 0;
+
+	while (i++ < ctx->loop && !ctx->stop) {
+		struct htab_val value;
+		unsigned int key;
+
+		/* Use BPF_F_LOCK to use spin-lock in map value. */
+		key = 7;
+		bpf_map_lookup_elem_flags(ctx->fd, &key, &value, BPF_F_LOCK);
+	}
+
+	return NULL;
+}
+
+static void *htab_update_fn(void *arg)
+{
+	struct htab_op_ctx *ctx = arg;
+	int i = 0;
+
+	while (i++ < ctx->loop && !ctx->stop) {
+		struct htab_val value;
+		unsigned int key;
+
+		key = 7;
+		value.lock = 0;
+		value.data = key;
+		bpf_map_update_elem(ctx->fd, &key, &value, BPF_F_LOCK);
+		bpf_map_delete_elem(ctx->fd, &key);
+
+		key = 24;
+		value.lock = 0;
+		value.data = key;
+		bpf_map_update_elem(ctx->fd, &key, &value, BPF_F_LOCK);
+		bpf_map_delete_elem(ctx->fd, &key);
+	}
+
+	return NULL;
+}
+
+void test_htab_reuse(void)
+{
+	unsigned int i, wr_nr = 1, rd_nr = 4;
+	pthread_t tids[wr_nr + rd_nr];
+	struct htab_reuse *skel;
+	struct htab_op_ctx ctx;
+	int err;
+
+	skel = htab_reuse__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "htab_reuse__open_and_load"))
+		return;
+
+	ctx.fd = bpf_map__fd(skel->maps.htab);
+	ctx.loop = 500;
+	ctx.stop = false;
+
+	memset(tids, 0, sizeof(tids));
+	for (i = 0; i < wr_nr; i++) {
+		err = pthread_create(&tids[i], NULL, htab_update_fn, &ctx);
+		if (!ASSERT_OK(err, "pthread_create")) {
+			ctx.stop = true;
+			goto reap;
+		}
+	}
+	for (i = 0; i < rd_nr; i++) {
+		err = pthread_create(&tids[i + wr_nr], NULL, htab_lookup_fn, &ctx);
+		if (!ASSERT_OK(err, "pthread_create")) {
+			ctx.stop = true;
+			goto reap;
+		}
+	}
+
+reap:
+	for (i = 0; i < wr_nr + rd_nr; i++) {
+		if (!tids[i])
+			continue;
+		pthread_join(tids[i], NULL);
+	}
+	htab_reuse__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/htab_update.c b/tools/testing/selftests/bpf/prog_tests/htab_update.c
new file mode 100644
index 000000000000..d0b405eb2966
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/htab_update.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdbool.h>
+#include <test_progs.h>
+#include "htab_update.skel.h"
+
+struct htab_update_ctx {
+	int fd;
+	int loop;
+	bool stop;
+};
+
+static void test_reenter_update(void)
+{
+	struct htab_update *skel;
+	void *value = NULL;
+	unsigned int key, value_size;
+	int err;
+
+	skel = htab_update__open();
+	if (!ASSERT_OK_PTR(skel, "htab_update__open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.bpf_obj_free_fields, true);
+	err = htab_update__load(skel);
+	if (!ASSERT_TRUE(!err, "htab_update__load") || err)
+		goto out;
+
+	skel->bss->pid = getpid();
+	err = htab_update__attach(skel);
+	if (!ASSERT_OK(err, "htab_update__attach"))
+		goto out;
+
+	value_size = bpf_map__value_size(skel->maps.htab);
+
+	value = calloc(1, value_size);
+	if (!ASSERT_OK_PTR(value, "calloc value"))
+		goto out;
+	/*
+	 * First update: plain insert. This should NOT trigger the re-entrancy
+	 * path, because there is no old element to free yet.
+	 */
+	key = 0;
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.htab), &key, value, BPF_ANY);
+	if (!ASSERT_OK(err, "first update (insert)"))
+		goto out;
+
+	/*
+	 * Second update: replace existing element with same key and trigger
+	 * the reentrancy of bpf_map_update_elem().
+	 * check_and_free_fields() calls bpf_obj_free_fields() on the old
+	 * value, which is where fentry program runs and performs a nested
+	 * bpf_map_update_elem(), triggering -EDEADLK.
+	 */
+	memset(value, 0, value_size);
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.htab), &key, value, BPF_ANY);
+	if (!ASSERT_OK(err, "second update (replace)"))
+		goto out;
+
+	ASSERT_EQ(skel->bss->update_err, -EDEADLK, "no reentrancy");
+out:
+	htab_update__destroy(skel);
+}
+
+static void *htab_update_thread(void *arg)
+{
+	struct htab_update_ctx *ctx = arg;
+	cpu_set_t cpus;
+	int i;
+
+	/* Pinned on CPU 0 */
+	CPU_ZERO(&cpus);
+	CPU_SET(0, &cpus);
+	pthread_setaffinity_np(pthread_self(), sizeof(cpus), &cpus);
+
+	i = 0;
+	while (i++ < ctx->loop && !ctx->stop) {
+		unsigned int key = 0, value = 0;
+		int err;
+
+		err = bpf_map_update_elem(ctx->fd, &key, &value, 0);
+		if (err) {
+			ctx->stop = true;
+			return (void *)(long)err;
+		}
+	}
+
+	return NULL;
+}
+
+static void test_concurrent_update(void)
+{
+	struct htab_update_ctx ctx;
+	struct htab_update *skel;
+	unsigned int i, nr;
+	pthread_t *tids;
+	int err;
+
+	skel = htab_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "htab_update__open_and_load"))
+		return;
+
+	ctx.fd = bpf_map__fd(skel->maps.htab);
+	ctx.loop = 1000;
+	ctx.stop = false;
+
+	nr = 4;
+	tids = calloc(nr, sizeof(*tids));
+	if (!ASSERT_NEQ(tids, NULL, "no mem"))
+		goto out;
+
+	for (i = 0; i < nr; i++) {
+		err = pthread_create(&tids[i], NULL, htab_update_thread, &ctx);
+		if (!ASSERT_OK(err, "pthread_create")) {
+			unsigned int j;
+
+			ctx.stop = true;
+			for (j = 0; j < i; j++)
+				pthread_join(tids[j], NULL);
+			goto out;
+		}
+	}
+
+	for (i = 0; i < nr; i++) {
+		void *thread_err = NULL;
+
+		pthread_join(tids[i], &thread_err);
+		ASSERT_EQ(thread_err, NULL, "update error");
+	}
+
+out:
+	if (tids)
+		free(tids);
+	htab_update__destroy(skel);
+}
+
+void test_htab_update(void)
+{
+	if (test__start_subtest("reenter_update"))
+		test_reenter_update();
+	if (test__start_subtest("concurrent_update"))
+		test_concurrent_update();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/inner_array_lookup.c b/tools/testing/selftests/bpf/prog_tests/inner_array_lookup.c
new file mode 100644
index 000000000000..9ab4cd195108
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/inner_array_lookup.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <test_progs.h>
+
+#include "inner_array_lookup.skel.h"
+
+void test_inner_array_lookup(void)
+{
+	int map1_fd, err;
+	int key = 3;
+	int val = 1;
+	struct inner_array_lookup *skel;
+
+	skel = inner_array_lookup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_load_skeleton"))
+		return;
+
+	err = inner_array_lookup__attach(skel);
+	if (!ASSERT_OK(err, "skeleton_attach"))
+		goto cleanup;
+
+	map1_fd = bpf_map__fd(skel->maps.inner_map1);
+	bpf_map_update_elem(map1_fd, &key, &val, 0);
+
+	/* Probe should have set the element at index 3 to 2 */
+	bpf_map_lookup_elem(map1_fd, &key, &val);
+	ASSERT_EQ(val, 2, "value_is_2");
+
+cleanup:
+	inner_array_lookup__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c b/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c
new file mode 100644
index 000000000000..4ddb8a5fece8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ip_check_defrag.c
@@ -0,0 +1,283 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <net/if.h>
+#include <linux/netfilter.h>
+#include <network_helpers.h>
+#include "ip_check_defrag.skel.h"
+#include "ip_check_defrag_frags.h"
+
+/*
+ * This selftest spins up a client and an echo server, each in their own
+ * network namespace. The client will send a fragmented message to the server.
+ * The prog attached to the server will shoot down any fragments. Thus, if
+ * the server is able to correctly echo back the message to the client, we will
+ * have verified that netfilter is reassembling packets for us.
+ *
+ * Topology:
+ * =========
+ *           NS0         |         NS1
+ *                       |
+ *         client        |       server
+ *       ----------      |     ----------
+ *       |  veth0  | --------- |  veth1  |
+ *       ----------    peer    ----------
+ *                       |
+ *                       |       with bpf
+ */
+
+#define NS0		"defrag_ns0"
+#define NS1		"defrag_ns1"
+#define VETH0		"veth0"
+#define VETH1		"veth1"
+#define VETH0_ADDR	"172.16.1.100"
+#define VETH0_ADDR6	"fc00::100"
+/* The following constants must stay in sync with `generate_udp_fragments.py` */
+#define VETH1_ADDR	"172.16.1.200"
+#define VETH1_ADDR6	"fc00::200"
+#define CLIENT_PORT	48878
+#define SERVER_PORT	48879
+#define MAGIC_MESSAGE	"THIS IS THE ORIGINAL MESSAGE, PLEASE REASSEMBLE ME"
+
+static int setup_topology(bool ipv6)
+{
+	bool up;
+	int i;
+
+	SYS(fail, "ip netns add " NS0);
+	SYS(fail, "ip netns add " NS1);
+	SYS(fail, "ip link add " VETH0 " netns " NS0 " type veth peer name " VETH1 " netns " NS1);
+	if (ipv6) {
+		SYS(fail, "ip -6 -net " NS0 " addr add " VETH0_ADDR6 "/64 dev " VETH0 " nodad");
+		SYS(fail, "ip -6 -net " NS1 " addr add " VETH1_ADDR6 "/64 dev " VETH1 " nodad");
+	} else {
+		SYS(fail, "ip -net " NS0 " addr add " VETH0_ADDR "/24 dev " VETH0);
+		SYS(fail, "ip -net " NS1 " addr add " VETH1_ADDR "/24 dev " VETH1);
+	}
+	SYS(fail, "ip -net " NS0 " link set dev " VETH0 " up");
+	SYS(fail, "ip -net " NS1 " link set dev " VETH1 " up");
+
+	/* Wait for up to 5s for links to come up */
+	for (i = 0; i < 5; ++i) {
+		if (ipv6)
+			up = !SYS_NOFAIL("ip netns exec " NS0 " ping -6 -c 1 -W 1 " VETH1_ADDR6);
+		else
+			up = !SYS_NOFAIL("ip netns exec " NS0 " ping -c 1 -W 1 " VETH1_ADDR);
+
+		if (up)
+			break;
+	}
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void cleanup_topology(void)
+{
+	SYS_NOFAIL("test -f /var/run/netns/" NS0 " && ip netns delete " NS0);
+	SYS_NOFAIL("test -f /var/run/netns/" NS1 " && ip netns delete " NS1);
+}
+
+static int attach(struct ip_check_defrag *skel, bool ipv6)
+{
+	LIBBPF_OPTS(bpf_netfilter_opts, opts,
+		    .pf = ipv6 ? NFPROTO_IPV6 : NFPROTO_IPV4,
+		    .priority = 42,
+		    .flags = BPF_F_NETFILTER_IP_DEFRAG);
+	struct nstoken *nstoken;
+	int err = -1;
+
+	nstoken = open_netns(NS1);
+	if (!ASSERT_OK_PTR(nstoken, "setns"))
+		goto out;
+
+	skel->links.defrag = bpf_program__attach_netfilter(skel->progs.defrag, &opts);
+	if (!ASSERT_OK_PTR(skel->links.defrag, "program attach"))
+		goto out;
+
+	err = 0;
+out:
+	close_netns(nstoken);
+	return err;
+}
+
+static int send_frags(int client)
+{
+	struct sockaddr_storage saddr;
+	struct sockaddr *saddr_p;
+	socklen_t saddr_len;
+	int err;
+
+	saddr_p = (struct sockaddr *)&saddr;
+	err = make_sockaddr(AF_INET, VETH1_ADDR, SERVER_PORT, &saddr, &saddr_len);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		return -1;
+
+	err = sendto(client, frag_0, sizeof(frag_0), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag_0"))
+		return -1;
+
+	err = sendto(client, frag_1, sizeof(frag_1), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag_1"))
+		return -1;
+
+	err = sendto(client, frag_2, sizeof(frag_2), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag_2"))
+		return -1;
+
+	return 0;
+}
+
+static int send_frags6(int client)
+{
+	struct sockaddr_storage saddr;
+	struct sockaddr *saddr_p;
+	socklen_t saddr_len;
+	int err;
+
+	saddr_p = (struct sockaddr *)&saddr;
+	/* Port needs to be set to 0 for raw ipv6 socket for some reason */
+	err = make_sockaddr(AF_INET6, VETH1_ADDR6, 0, &saddr, &saddr_len);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		return -1;
+
+	err = sendto(client, frag6_0, sizeof(frag6_0), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag6_0"))
+		return -1;
+
+	err = sendto(client, frag6_1, sizeof(frag6_1), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag6_1"))
+		return -1;
+
+	err = sendto(client, frag6_2, sizeof(frag6_2), 0, saddr_p, saddr_len);
+	if (!ASSERT_GE(err, 0, "sendto frag6_2"))
+		return -1;
+
+	return 0;
+}
+
+void test_bpf_ip_check_defrag_ok(bool ipv6)
+{
+	int family = ipv6 ? AF_INET6 : AF_INET;
+	struct network_helper_opts rx_opts = {
+		.timeout_ms = 1000,
+	};
+	struct network_helper_opts tx_ops = {
+		.timeout_ms = 1000,
+		.proto = IPPROTO_RAW,
+	};
+	struct sockaddr_storage caddr;
+	struct ip_check_defrag *skel;
+	struct nstoken *nstoken;
+	int client_tx_fd = -1;
+	int client_rx_fd = -1;
+	socklen_t caddr_len;
+	int srv_fd = -1;
+	char buf[1024];
+	int len, err;
+
+	skel = ip_check_defrag__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	if (!ASSERT_OK(setup_topology(ipv6), "setup_topology"))
+		goto out;
+
+	if (!ASSERT_OK(attach(skel, ipv6), "attach"))
+		goto out;
+
+	/* Start server in ns1 */
+	nstoken = open_netns(NS1);
+	if (!ASSERT_OK_PTR(nstoken, "setns ns1"))
+		goto out;
+	srv_fd = start_server(family, SOCK_DGRAM, NULL, SERVER_PORT, 0);
+	close_netns(nstoken);
+	if (!ASSERT_GE(srv_fd, 0, "start_server"))
+		goto out;
+
+	/* Open tx raw socket in ns0 */
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns ns0"))
+		goto out;
+	client_tx_fd = client_socket(family, SOCK_RAW, &tx_ops);
+	close_netns(nstoken);
+	if (!ASSERT_GE(client_tx_fd, 0, "client_socket"))
+		goto out;
+
+	/* Open rx socket in ns0 */
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns ns0"))
+		goto out;
+	client_rx_fd = client_socket(family, SOCK_DGRAM, &rx_opts);
+	close_netns(nstoken);
+	if (!ASSERT_GE(client_rx_fd, 0, "client_socket"))
+		goto out;
+
+	/* Bind rx socket to a premeditated port */
+	memset(&caddr, 0, sizeof(caddr));
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns ns0"))
+		goto out;
+	if (ipv6) {
+		struct sockaddr_in6 *c = (struct sockaddr_in6 *)&caddr;
+
+		c->sin6_family = AF_INET6;
+		inet_pton(AF_INET6, VETH0_ADDR6, &c->sin6_addr);
+		c->sin6_port = htons(CLIENT_PORT);
+		err = bind(client_rx_fd, (struct sockaddr *)c, sizeof(*c));
+	} else {
+		struct sockaddr_in *c = (struct sockaddr_in *)&caddr;
+
+		c->sin_family = AF_INET;
+		inet_pton(AF_INET, VETH0_ADDR, &c->sin_addr);
+		c->sin_port = htons(CLIENT_PORT);
+		err = bind(client_rx_fd, (struct sockaddr *)c, sizeof(*c));
+	}
+	close_netns(nstoken);
+	if (!ASSERT_OK(err, "bind"))
+		goto out;
+
+	/* Send message in fragments */
+	if (ipv6) {
+		if (!ASSERT_OK(send_frags6(client_tx_fd), "send_frags6"))
+			goto out;
+	} else {
+		if (!ASSERT_OK(send_frags(client_tx_fd), "send_frags"))
+			goto out;
+	}
+
+	if (!ASSERT_EQ(skel->bss->shootdowns, 0, "shootdowns"))
+		goto out;
+
+	/* Receive reassembled msg on server and echo back to client */
+	caddr_len = sizeof(caddr);
+	len = recvfrom(srv_fd, buf, sizeof(buf), 0, (struct sockaddr *)&caddr, &caddr_len);
+	if (!ASSERT_GE(len, 0, "server recvfrom"))
+		goto out;
+	len = sendto(srv_fd, buf, len, 0, (struct sockaddr *)&caddr, caddr_len);
+	if (!ASSERT_GE(len, 0, "server sendto"))
+		goto out;
+
+	/* Expect reassembed message to be echoed back */
+	len = recvfrom(client_rx_fd, buf, sizeof(buf), 0, NULL, NULL);
+	if (!ASSERT_EQ(len, sizeof(MAGIC_MESSAGE) - 1, "client short read"))
+		goto out;
+
+out:
+	if (client_rx_fd != -1)
+		close(client_rx_fd);
+	if (client_tx_fd != -1)
+		close(client_tx_fd);
+	if (srv_fd != -1)
+		close(srv_fd);
+	cleanup_topology();
+	ip_check_defrag__destroy(skel);
+}
+
+void test_bpf_ip_check_defrag(void)
+{
+	if (test__start_subtest("v4"))
+		test_bpf_ip_check_defrag_ok(false);
+	if (test__start_subtest("v6"))
+		test_bpf_ip_check_defrag_ok(true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/iters.c b/tools/testing/selftests/bpf/prog_tests/iters.c
new file mode 100644
index 000000000000..3cea71f9c500
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/iters.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <stdlib.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#include "iters.skel.h"
+#include "iters_state_safety.skel.h"
+#include "iters_looping.skel.h"
+#include "iters_num.skel.h"
+#include "iters_testmod.skel.h"
+#include "iters_testmod_seq.skel.h"
+#include "iters_task_vma.skel.h"
+#include "iters_task.skel.h"
+#include "iters_css_task.skel.h"
+#include "iters_css.skel.h"
+#include "iters_task_failure.skel.h"
+
+static void subtest_num_iters(void)
+{
+	struct iters_num *skel;
+	int err;
+
+	skel = iters_num__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = iters_num__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	usleep(1);
+	iters_num__detach(skel);
+
+#define VALIDATE_CASE(case_name)					\
+	ASSERT_EQ(skel->bss->res_##case_name,				\
+		  skel->rodata->exp_##case_name,			\
+		  #case_name)
+
+	VALIDATE_CASE(empty_zero);
+	VALIDATE_CASE(empty_int_min);
+	VALIDATE_CASE(empty_int_max);
+	VALIDATE_CASE(empty_minus_one);
+
+	VALIDATE_CASE(simple_sum);
+	VALIDATE_CASE(neg_sum);
+	VALIDATE_CASE(very_neg_sum);
+	VALIDATE_CASE(neg_pos_sum);
+
+	VALIDATE_CASE(invalid_range);
+	VALIDATE_CASE(max_range);
+	VALIDATE_CASE(e2big_range);
+
+	VALIDATE_CASE(succ_elem_cnt);
+	VALIDATE_CASE(overfetched_elem_cnt);
+	VALIDATE_CASE(fail_elem_cnt);
+
+#undef VALIDATE_CASE
+
+cleanup:
+	iters_num__destroy(skel);
+}
+
+static void subtest_testmod_seq_iters(void)
+{
+	struct iters_testmod_seq *skel;
+	int err;
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	skel = iters_testmod_seq__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = iters_testmod_seq__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	usleep(1);
+	iters_testmod_seq__detach(skel);
+
+#define VALIDATE_CASE(case_name)					\
+	ASSERT_EQ(skel->bss->res_##case_name,				\
+		  skel->rodata->exp_##case_name,			\
+		  #case_name)
+
+	VALIDATE_CASE(empty);
+	VALIDATE_CASE(full);
+	VALIDATE_CASE(truncated);
+
+#undef VALIDATE_CASE
+
+cleanup:
+	iters_testmod_seq__destroy(skel);
+}
+
+static void subtest_task_vma_iters(void)
+{
+	unsigned long start, end, bpf_iter_start, bpf_iter_end;
+	struct iters_task_vma *skel;
+	char rest_of_line[1000];
+	unsigned int seen;
+	FILE *f = NULL;
+	int err;
+
+	skel = iters_task_vma__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	skel->bss->target_pid = getpid();
+
+	err = iters_task_vma__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	getpgid(skel->bss->target_pid);
+	iters_task_vma__detach(skel);
+
+	if (!ASSERT_GT(skel->bss->vmas_seen, 0, "vmas_seen_gt_zero"))
+		goto cleanup;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!ASSERT_OK_PTR(f, "proc_maps_fopen"))
+		goto cleanup;
+
+	seen = 0;
+	while (fscanf(f, "%lx-%lx %[^\n]\n", &start, &end, rest_of_line) == 3) {
+		/* [vsyscall] vma isn't _really_ part of task->mm vmas.
+		 * /proc/PID/maps returns it when out of vmas - see get_gate_vma
+		 * calls in fs/proc/task_mmu.c
+		 */
+		if (strstr(rest_of_line, "[vsyscall]"))
+			continue;
+
+		bpf_iter_start = skel->bss->vm_ranges[seen].vm_start;
+		bpf_iter_end = skel->bss->vm_ranges[seen].vm_end;
+
+		ASSERT_EQ(bpf_iter_start, start, "vma->vm_start match");
+		ASSERT_EQ(bpf_iter_end, end, "vma->vm_end match");
+		seen++;
+	}
+
+	if (!ASSERT_EQ(skel->bss->vmas_seen, seen, "vmas_seen_eq"))
+		goto cleanup;
+
+cleanup:
+	if (f)
+		fclose(f);
+	iters_task_vma__destroy(skel);
+}
+
+static pthread_mutex_t do_nothing_mutex;
+
+static void *do_nothing_wait(void *arg)
+{
+	pthread_mutex_lock(&do_nothing_mutex);
+	pthread_mutex_unlock(&do_nothing_mutex);
+
+	pthread_exit(arg);
+}
+
+#define thread_num 2
+
+static void subtest_task_iters(void)
+{
+	struct iters_task *skel = NULL;
+	pthread_t thread_ids[thread_num];
+	void *ret;
+	int err;
+
+	skel = iters_task__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto cleanup;
+	skel->bss->target_pid = getpid();
+	err = iters_task__attach(skel);
+	if (!ASSERT_OK(err, "iters_task__attach"))
+		goto cleanup;
+	pthread_mutex_lock(&do_nothing_mutex);
+	for (int i = 0; i < thread_num; i++)
+		ASSERT_OK(pthread_create(&thread_ids[i], NULL, &do_nothing_wait, NULL),
+			"pthread_create");
+
+	syscall(SYS_getpgid);
+	iters_task__detach(skel);
+	ASSERT_EQ(skel->bss->procs_cnt, 1, "procs_cnt");
+	ASSERT_EQ(skel->bss->threads_cnt, thread_num + 2, "threads_cnt");
+	ASSERT_EQ(skel->bss->proc_threads_cnt, thread_num + 2, "proc_threads_cnt");
+	ASSERT_EQ(skel->bss->invalid_cnt, 0, "invalid_cnt");
+	pthread_mutex_unlock(&do_nothing_mutex);
+	for (int i = 0; i < thread_num; i++)
+		ASSERT_OK(pthread_join(thread_ids[i], &ret), "pthread_join");
+cleanup:
+	iters_task__destroy(skel);
+}
+
+extern int stack_mprotect(void);
+
+static void subtest_css_task_iters(void)
+{
+	struct iters_css_task *skel = NULL;
+	int err, cg_fd, cg_id;
+	const char *cgrp_path = "/cg1";
+
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "setup_cgroup_environment"))
+		goto cleanup;
+	cg_fd = create_and_get_cgroup(cgrp_path);
+	if (!ASSERT_GE(cg_fd, 0, "create_and_get_cgroup"))
+		goto cleanup;
+	cg_id = get_cgroup_id(cgrp_path);
+	err = join_cgroup(cgrp_path);
+	if (!ASSERT_OK(err, "join_cgroup"))
+		goto cleanup;
+
+	skel = iters_css_task__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto cleanup;
+
+	skel->bss->target_pid = getpid();
+	skel->bss->cg_id = cg_id;
+	err = iters_css_task__attach(skel);
+	if (!ASSERT_OK(err, "iters_task__attach"))
+		goto cleanup;
+	err = stack_mprotect();
+	if (!ASSERT_EQ(err, -1, "stack_mprotect") ||
+	    !ASSERT_EQ(errno, EPERM, "stack_mprotect"))
+		goto cleanup;
+	iters_css_task__detach(skel);
+	ASSERT_EQ(skel->bss->css_task_cnt, 1, "css_task_cnt");
+
+cleanup:
+	cleanup_cgroup_environment();
+	iters_css_task__destroy(skel);
+}
+
+static void subtest_css_iters(void)
+{
+	struct iters_css *skel = NULL;
+	struct {
+		const char *path;
+		int fd;
+	} cgs[] = {
+		{ "/cg1" },
+		{ "/cg1/cg2" },
+		{ "/cg1/cg2/cg3" },
+		{ "/cg1/cg2/cg3/cg4" },
+	};
+	int err, cg_nr = ARRAY_SIZE(cgs);
+	int i;
+
+	err = setup_cgroup_environment();
+	if (!ASSERT_OK(err, "setup_cgroup_environment"))
+		goto cleanup;
+	for (i = 0; i < cg_nr; i++) {
+		cgs[i].fd = create_and_get_cgroup(cgs[i].path);
+		if (!ASSERT_GE(cgs[i].fd, 0, "create_and_get_cgroup"))
+			goto cleanup;
+	}
+
+	skel = iters_css__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto cleanup;
+
+	skel->bss->target_pid = getpid();
+	skel->bss->root_cg_id = get_cgroup_id(cgs[0].path);
+	skel->bss->leaf_cg_id = get_cgroup_id(cgs[cg_nr - 1].path);
+	err = iters_css__attach(skel);
+
+	if (!ASSERT_OK(err, "iters_task__attach"))
+		goto cleanup;
+
+	syscall(SYS_getpgid);
+	ASSERT_EQ(skel->bss->pre_order_cnt, cg_nr, "pre_order_cnt");
+	ASSERT_EQ(skel->bss->first_cg_id, get_cgroup_id(cgs[0].path), "first_cg_id");
+
+	ASSERT_EQ(skel->bss->post_order_cnt, cg_nr, "post_order_cnt");
+	ASSERT_EQ(skel->bss->last_cg_id, get_cgroup_id(cgs[0].path), "last_cg_id");
+	ASSERT_EQ(skel->bss->tree_high, cg_nr - 1, "tree_high");
+	iters_css__detach(skel);
+cleanup:
+	cleanup_cgroup_environment();
+	iters_css__destroy(skel);
+}
+
+void test_iters(void)
+{
+	RUN_TESTS(iters_state_safety);
+	RUN_TESTS(iters_looping);
+	RUN_TESTS(iters);
+	RUN_TESTS(iters_css_task);
+
+	if (env.has_testmod) {
+		RUN_TESTS(iters_testmod);
+		RUN_TESTS(iters_testmod_seq);
+	}
+
+	if (test__start_subtest("num"))
+		subtest_num_iters();
+	if (test__start_subtest("testmod_seq"))
+		subtest_testmod_seq_iters();
+	if (test__start_subtest("task_vma"))
+		subtest_task_vma_iters();
+	if (test__start_subtest("task"))
+		subtest_task_iters();
+	if (test__start_subtest("css_task"))
+		subtest_css_task_iters();
+	if (test__start_subtest("css"))
+		subtest_css_iters();
+	RUN_TESTS(iters_task_failure);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/jeq_infer_not_null.c b/tools/testing/selftests/bpf/prog_tests/jeq_infer_not_null.c
new file mode 100644
index 000000000000..3add34df5767
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/jeq_infer_not_null.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "jeq_infer_not_null_fail.skel.h"
+
+void test_jeq_infer_not_null(void)
+{
+	RUN_TESTS(jeq_infer_not_null_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/jit_probe_mem.c b/tools/testing/selftests/bpf/prog_tests/jit_probe_mem.c
new file mode 100644
index 000000000000..5639428607e6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/jit_probe_mem.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "jit_probe_mem.skel.h"
+
+void test_jit_probe_mem(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	struct jit_probe_mem *skel;
+	int ret;
+
+	skel = jit_probe_mem__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "jit_probe_mem__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_jit_probe_mem), &opts);
+	ASSERT_OK(ret, "jit_probe_mem ret");
+	ASSERT_OK(opts.retval, "jit_probe_mem opts.retval");
+	ASSERT_EQ(skel->data->total_sum, 192, "jit_probe_mem total_sum");
+
+	jit_probe_mem__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kernel_flag.c b/tools/testing/selftests/bpf/prog_tests/kernel_flag.c
new file mode 100644
index 000000000000..97b00c7efe94
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kernel_flag.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Microsoft */
+#include <test_progs.h>
+#include "kfunc_call_test.skel.h"
+#include "kfunc_call_test.lskel.h"
+#include "test_kernel_flag.skel.h"
+
+void test_kernel_flag(void)
+{
+	struct test_kernel_flag *lsm_skel;
+	struct kfunc_call_test *skel = NULL;
+	struct kfunc_call_test_lskel *lskel = NULL;
+	int ret;
+
+	lsm_skel = test_kernel_flag__open_and_load();
+	if (!ASSERT_OK_PTR(lsm_skel, "lsm_skel"))
+		return;
+
+	lsm_skel->bss->monitored_tid = sys_gettid();
+
+	ret = test_kernel_flag__attach(lsm_skel);
+	if (!ASSERT_OK(ret, "test_kernel_flag__attach"))
+		goto close_prog;
+
+	/* Test with skel. This should pass the gatekeeper */
+	skel = kfunc_call_test__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto close_prog;
+
+	/* Test with lskel. This should fail due to blocking kernel-based bpf() invocations */
+	lskel = kfunc_call_test_lskel__open_and_load();
+	if (!ASSERT_ERR_PTR(lskel, "lskel"))
+		goto close_prog;
+
+close_prog:
+	if (skel)
+		kfunc_call_test__destroy(skel);
+	if (lskel)
+		kfunc_call_test_lskel__destroy(lskel);
+
+	lsm_skel->bss->monitored_tid = 0;
+	test_kernel_flag__destroy(lsm_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kfree_skb.c b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c
new file mode 100644
index 000000000000..34f8822fd221
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kfree_skb.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "kfree_skb.skel.h"
+
+struct meta {
+	int ifindex;
+	__u32 cb32_0;
+	__u8 cb8_0;
+};
+
+static union {
+	__u32 cb32[5];
+	__u8 cb8[20];
+} cb = {
+	.cb32[0] = 0x81828384,
+};
+
+static void on_sample(void *ctx, int cpu, void *data, __u32 size)
+{
+	struct meta *meta = (struct meta *)data;
+	struct ipv6_packet *pkt_v6 = data + sizeof(*meta);
+	int duration = 0;
+
+	if (CHECK(size != 72 + sizeof(*meta), "check_size", "size %u != %zu\n",
+		  size, 72 + sizeof(*meta)))
+		return;
+	if (CHECK(meta->ifindex != 1, "check_meta_ifindex",
+		  "meta->ifindex = %d\n", meta->ifindex))
+		/* spurious kfree_skb not on loopback device */
+		return;
+	if (CHECK(meta->cb8_0 != cb.cb8[0], "check_cb8_0", "cb8_0 %x != %x\n",
+		  meta->cb8_0, cb.cb8[0]))
+		return;
+	if (CHECK(meta->cb32_0 != cb.cb32[0], "check_cb32_0",
+		  "cb32_0 %x != %x\n",
+		  meta->cb32_0, cb.cb32[0]))
+		return;
+	if (CHECK(pkt_v6->eth.h_proto != htons(ETH_P_IPV6), "check_eth",
+		  "h_proto %x\n", pkt_v6->eth.h_proto))
+		return;
+	if (CHECK(pkt_v6->iph.nexthdr != 6, "check_ip",
+		  "iph.nexthdr %x\n", pkt_v6->iph.nexthdr))
+		return;
+	if (CHECK(pkt_v6->tcp.doff != 5, "check_tcp",
+		  "tcp.doff %x\n", pkt_v6->tcp.doff))
+		return;
+
+	*(bool *)ctx = true;
+}
+
+/* TODO: fix kernel panic caused by this test in parallel mode */
+void serial_test_kfree_skb(void)
+{
+	struct __sk_buff skb = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v6,
+		.data_size_in = sizeof(pkt_v6),
+		.ctx_in = &skb,
+		.ctx_size_in = sizeof(skb),
+	);
+	struct kfree_skb *skel = NULL;
+	struct bpf_link *link;
+	struct bpf_object *obj;
+	struct perf_buffer *pb = NULL;
+	int err, prog_fd;
+	bool passed = false;
+	__u32 duration = 0;
+	const int zero = 0;
+	bool test_ok[2];
+
+	err = bpf_prog_test_load("./test_pkt_access.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (CHECK(err, "prog_load sched cls", "err %d errno %d\n", err, errno))
+		return;
+
+	skel = kfree_skb__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kfree_skb_skel"))
+		goto close_prog;
+
+	link = bpf_program__attach_raw_tracepoint(skel->progs.trace_kfree_skb, NULL);
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
+		goto close_prog;
+	skel->links.trace_kfree_skb = link;
+
+	link = bpf_program__attach_trace(skel->progs.fentry_eth_type_trans);
+	if (!ASSERT_OK_PTR(link, "attach fentry"))
+		goto close_prog;
+	skel->links.fentry_eth_type_trans = link;
+
+	link = bpf_program__attach_trace(skel->progs.fexit_eth_type_trans);
+	if (!ASSERT_OK_PTR(link, "attach fexit"))
+		goto close_prog;
+	skel->links.fexit_eth_type_trans = link;
+
+	/* set up perf buffer */
+	pb = perf_buffer__new(bpf_map__fd(skel->maps.perf_buf_map), 1,
+			      on_sample, NULL, &passed, NULL);
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
+		goto close_prog;
+
+	memcpy(skb.cb, &cb, sizeof(cb));
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv6 test_run");
+	ASSERT_OK(topts.retval, "ipv6 test_run retval");
+
+	/* read perf buffer */
+	err = perf_buffer__poll(pb, 100);
+	if (CHECK(err < 0, "perf_buffer__poll", "err %d\n", err))
+		goto close_prog;
+
+	/* make sure kfree_skb program was triggered
+	 * and it sent expected skb into ring buffer
+	 */
+	ASSERT_TRUE(passed, "passed");
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.bss), &zero, test_ok);
+	if (CHECK(err, "get_result",
+		  "failed to get output data: %d\n", err))
+		goto close_prog;
+
+	CHECK_FAIL(!test_ok[0] || !test_ok[1]);
+close_prog:
+	perf_buffer__free(pb);
+	bpf_object__close(obj);
+	kfree_skb__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_call.c b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
new file mode 100644
index 000000000000..f79c8e53cb3e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_call.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "kfunc_call_fail.skel.h"
+#include "kfunc_call_test.skel.h"
+#include "kfunc_call_test.lskel.h"
+#include "kfunc_call_test_subprog.skel.h"
+#include "kfunc_call_test_subprog.lskel.h"
+#include "kfunc_call_destructive.skel.h"
+
+#include "cap_helpers.h"
+
+static size_t log_buf_sz = 1048576; /* 1 MB */
+static char obj_log_buf[1048576];
+
+enum kfunc_test_type {
+	tc_test = 0,
+	syscall_test,
+	syscall_null_ctx_test,
+};
+
+struct kfunc_test_params {
+	const char *prog_name;
+	unsigned long lskel_prog_desc_offset;
+	int retval;
+	enum kfunc_test_type test_type;
+	const char *expected_err_msg;
+};
+
+#define __BPF_TEST_SUCCESS(name, __retval, type) \
+	{ \
+	  .prog_name = #name, \
+	  .lskel_prog_desc_offset = offsetof(struct kfunc_call_test_lskel, progs.name), \
+	  .retval = __retval, \
+	  .test_type = type, \
+	  .expected_err_msg = NULL, \
+	}
+
+#define __BPF_TEST_FAIL(name, __retval, type, error_msg) \
+	{ \
+	  .prog_name = #name, \
+	  .lskel_prog_desc_offset = 0 /* unused when test is failing */, \
+	  .retval = __retval, \
+	  .test_type = type, \
+	  .expected_err_msg = error_msg, \
+	}
+
+#define TC_TEST(name, retval) __BPF_TEST_SUCCESS(name, retval, tc_test)
+#define SYSCALL_TEST(name, retval) __BPF_TEST_SUCCESS(name, retval, syscall_test)
+#define SYSCALL_NULL_CTX_TEST(name, retval) __BPF_TEST_SUCCESS(name, retval, syscall_null_ctx_test)
+
+#define TC_FAIL(name, retval, error_msg) __BPF_TEST_FAIL(name, retval, tc_test, error_msg)
+#define SYSCALL_NULL_CTX_FAIL(name, retval, error_msg) \
+	__BPF_TEST_FAIL(name, retval, syscall_null_ctx_test, error_msg)
+
+static struct kfunc_test_params kfunc_tests[] = {
+	/* failure cases:
+	 * if retval is 0 -> the program will fail to load and the error message is an error
+	 * if retval is not 0 -> the program can be loaded but running it will gives the
+	 *                       provided return value. The error message is thus the one
+	 *                       from a successful load
+	 */
+	SYSCALL_NULL_CTX_FAIL(kfunc_syscall_test_fail, -EINVAL, "processed 4 insns"),
+	SYSCALL_NULL_CTX_FAIL(kfunc_syscall_test_null_fail, -EINVAL, "processed 4 insns"),
+	TC_FAIL(kfunc_call_test_get_mem_fail_rdonly, 0, "R0 cannot write into rdonly_mem"),
+	TC_FAIL(kfunc_call_test_get_mem_fail_use_after_free, 0, "invalid mem access 'scalar'"),
+	TC_FAIL(kfunc_call_test_get_mem_fail_oob, 0, "min value is outside of the allowed memory range"),
+	TC_FAIL(kfunc_call_test_get_mem_fail_not_const, 0, "is not a const"),
+	TC_FAIL(kfunc_call_test_mem_acquire_fail, 0, "acquire kernel function does not return PTR_TO_BTF_ID"),
+	TC_FAIL(kfunc_call_test_pointer_arg_type_mismatch, 0, "arg#0 expected pointer to ctx, but got scalar"),
+
+	/* success cases */
+	TC_TEST(kfunc_call_test1, 12),
+	TC_TEST(kfunc_call_test2, 3),
+	TC_TEST(kfunc_call_test4, -1234),
+	TC_TEST(kfunc_call_test_ref_btf_id, 0),
+	TC_TEST(kfunc_call_test_get_mem, 42),
+	SYSCALL_TEST(kfunc_syscall_test, 0),
+	SYSCALL_NULL_CTX_TEST(kfunc_syscall_test_null, 0),
+	TC_TEST(kfunc_call_test_static_unused_arg, 0),
+	TC_TEST(kfunc_call_ctx, 0),
+};
+
+struct syscall_test_args {
+	__u8 data[16];
+	size_t size;
+};
+
+static void verify_success(struct kfunc_test_params *param)
+{
+	struct kfunc_call_test_lskel *lskel = NULL;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_prog_desc *lskel_prog;
+	struct kfunc_call_test *skel;
+	struct bpf_program *prog;
+	int prog_fd, err;
+	struct syscall_test_args args = {
+		.size = 10,
+	};
+
+	switch (param->test_type) {
+	case syscall_test:
+		topts.ctx_in = &args;
+		topts.ctx_size_in = sizeof(args);
+		/* fallthrough */
+	case syscall_null_ctx_test:
+		break;
+	case tc_test:
+		topts.data_in = &pkt_v4;
+		topts.data_size_in = sizeof(pkt_v4);
+		topts.repeat = 1;
+		break;
+	}
+
+	/* first test with normal libbpf */
+	skel = kfunc_call_test__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, param->prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(prog);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, param->prog_name))
+		goto cleanup;
+
+	if (!ASSERT_EQ(topts.retval, param->retval, "retval"))
+		goto cleanup;
+
+	/* second test with light skeletons */
+	lskel = kfunc_call_test_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(lskel, "lskel"))
+		goto cleanup;
+
+	lskel_prog = (struct bpf_prog_desc *)((char *)lskel + param->lskel_prog_desc_offset);
+
+	prog_fd = lskel_prog->prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, param->prog_name))
+		goto cleanup;
+
+	ASSERT_EQ(topts.retval, param->retval, "retval");
+
+cleanup:
+	kfunc_call_test__destroy(skel);
+	if (lskel)
+		kfunc_call_test_lskel__destroy(lskel);
+}
+
+static void verify_fail(struct kfunc_test_params *param)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_program *prog;
+	struct kfunc_call_fail *skel;
+	int prog_fd, err;
+	struct syscall_test_args args = {
+		.size = 10,
+	};
+
+	opts.kernel_log_buf = obj_log_buf;
+	opts.kernel_log_size = log_buf_sz;
+	opts.kernel_log_level = 1;
+
+	switch (param->test_type) {
+	case syscall_test:
+		topts.ctx_in = &args;
+		topts.ctx_size_in = sizeof(args);
+		/* fallthrough */
+	case syscall_null_ctx_test:
+		break;
+	case tc_test:
+		topts.data_in = &pkt_v4;
+		topts.data_size_in = sizeof(pkt_v4);
+		topts.repeat = 1;
+		break;
+	}
+
+	skel = kfunc_call_fail__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "kfunc_call_fail__open_opts"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, param->prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	bpf_program__set_autoload(prog, true);
+
+	err = kfunc_call_fail__load(skel);
+	if (!param->retval) {
+		/* the verifier is supposed to complain and refuses to load */
+		if (!ASSERT_ERR(err, "unexpected load success"))
+			goto out_err;
+
+	} else {
+		/* the program is loaded but must dynamically fail */
+		if (!ASSERT_OK(err, "unexpected load error"))
+			goto out_err;
+
+		prog_fd = bpf_program__fd(prog);
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		if (!ASSERT_EQ(err, param->retval, param->prog_name))
+			goto out_err;
+	}
+
+out_err:
+	if (!ASSERT_OK_PTR(strstr(obj_log_buf, param->expected_err_msg), "expected_err_msg")) {
+		fprintf(stderr, "Expected err_msg: %s\n", param->expected_err_msg);
+		fprintf(stderr, "Verifier output: %s\n", obj_log_buf);
+	}
+
+cleanup:
+	kfunc_call_fail__destroy(skel);
+}
+
+static void test_main(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(kfunc_tests); i++) {
+		if (!test__start_subtest(kfunc_tests[i].prog_name))
+			continue;
+
+		if (!kfunc_tests[i].expected_err_msg)
+			verify_success(&kfunc_tests[i]);
+		else
+			verify_fail(&kfunc_tests[i]);
+	}
+}
+
+static void test_subprog(void)
+{
+	struct kfunc_call_test_subprog *skel;
+	int prog_fd, err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = kfunc_call_test_subprog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		return;
+
+	prog_fd = bpf_program__fd(skel->progs.kfunc_call_test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "bpf_prog_test_run(test1)");
+	ASSERT_EQ(topts.retval, 10, "test1-retval");
+	ASSERT_NEQ(skel->data->active_res, -1, "active_res");
+	ASSERT_EQ(skel->data->sk_state_res, BPF_TCP_CLOSE, "sk_state_res");
+
+	kfunc_call_test_subprog__destroy(skel);
+}
+
+static void test_subprog_lskel(void)
+{
+	struct kfunc_call_test_subprog_lskel *skel;
+	int prog_fd, err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = kfunc_call_test_subprog_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		return;
+
+	prog_fd = skel->progs.kfunc_call_test1.prog_fd;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "bpf_prog_test_run(test1)");
+	ASSERT_EQ(topts.retval, 10, "test1-retval");
+	ASSERT_NEQ(skel->data->active_res, -1, "active_res");
+	ASSERT_EQ(skel->data->sk_state_res, BPF_TCP_CLOSE, "sk_state_res");
+
+	kfunc_call_test_subprog_lskel__destroy(skel);
+}
+
+static int test_destructive_open_and_load(void)
+{
+	struct kfunc_call_destructive *skel;
+	int err;
+
+	skel = kfunc_call_destructive__open();
+	if (!ASSERT_OK_PTR(skel, "prog_open"))
+		return -1;
+
+	err = kfunc_call_destructive__load(skel);
+
+	kfunc_call_destructive__destroy(skel);
+
+	return err;
+}
+
+static void test_destructive(void)
+{
+	__u64 save_caps = 0;
+
+	ASSERT_OK(test_destructive_open_and_load(), "successful_load");
+
+	if (!ASSERT_OK(cap_disable_effective(1ULL << CAP_SYS_BOOT, &save_caps), "drop_caps"))
+		return;
+
+	ASSERT_EQ(test_destructive_open_and_load(), -13, "no_caps_failure");
+
+	cap_enable_effective(save_caps, NULL);
+}
+
+void test_kfunc_call(void)
+{
+	test_main();
+
+	if (test__start_subtest("subprog"))
+		test_subprog();
+
+	if (test__start_subtest("subprog_lskel"))
+		test_subprog_lskel();
+
+	if (test__start_subtest("destructive"))
+		test_destructive();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c b/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c
new file mode 100644
index 000000000000..8cd298b78e44
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_dynptr_param.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (c) 2022 Facebook
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include <test_progs.h>
+#include "test_kfunc_dynptr_param.skel.h"
+
+static struct {
+	const char *prog_name;
+	int expected_runtime_err;
+} kfunc_dynptr_tests[] = {
+	{"dynptr_data_null", -EBADMSG},
+};
+
+static bool kfunc_not_supported;
+
+static int libbpf_print_cb(enum libbpf_print_level level, const char *fmt,
+			   va_list args)
+{
+	if (strcmp(fmt, "libbpf: extern (func ksym) '%s': not found in kernel or module BTFs\n"))
+		return 0;
+
+	if (strcmp(va_arg(args, char *), "bpf_verify_pkcs7_signature"))
+		return 0;
+
+	kfunc_not_supported = true;
+	return 0;
+}
+
+static bool has_pkcs7_kfunc_support(void)
+{
+	struct test_kfunc_dynptr_param *skel;
+	libbpf_print_fn_t old_print_cb;
+	int err;
+
+	skel = test_kfunc_dynptr_param__open();
+	if (!ASSERT_OK_PTR(skel, "test_kfunc_dynptr_param__open"))
+		return false;
+
+	kfunc_not_supported = false;
+
+	old_print_cb = libbpf_set_print(libbpf_print_cb);
+	err = test_kfunc_dynptr_param__load(skel);
+	libbpf_set_print(old_print_cb);
+
+	if (err < 0 && kfunc_not_supported) {
+		fprintf(stderr,
+		  "%s:SKIP:bpf_verify_pkcs7_signature() kfunc not supported\n",
+		  __func__);
+		test_kfunc_dynptr_param__destroy(skel);
+		return false;
+	}
+
+	test_kfunc_dynptr_param__destroy(skel);
+
+	return true;
+}
+
+static void verify_success(const char *prog_name, int expected_runtime_err)
+{
+	struct test_kfunc_dynptr_param *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	__u32 next_id;
+	int err;
+
+	skel = test_kfunc_dynptr_param__open();
+	if (!ASSERT_OK_PTR(skel, "test_kfunc_dynptr_param__open"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	err = test_kfunc_dynptr_param__load(skel);
+
+	if (!ASSERT_OK(err, "test_kfunc_dynptr_param__load"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach"))
+		goto cleanup;
+
+	err = bpf_prog_get_next_id(0, &next_id);
+
+	bpf_link__destroy(link);
+
+	if (!ASSERT_OK(err, "bpf_prog_get_next_id"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->err, expected_runtime_err, "err");
+
+cleanup:
+	test_kfunc_dynptr_param__destroy(skel);
+}
+
+void test_kfunc_dynptr_param(void)
+{
+	int i;
+
+	if (!has_pkcs7_kfunc_support())
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(kfunc_dynptr_tests); i++) {
+		if (!test__start_subtest(kfunc_dynptr_tests[i].prog_name))
+			continue;
+
+		verify_success(kfunc_dynptr_tests[i].prog_name,
+			kfunc_dynptr_tests[i].expected_runtime_err);
+	}
+	RUN_TESTS(test_kfunc_dynptr_param);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_module_order.c b/tools/testing/selftests/bpf/prog_tests/kfunc_module_order.c
new file mode 100644
index 000000000000..48c0560d398e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_module_order.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <testing_helpers.h>
+
+#include "kfunc_module_order.skel.h"
+
+static int test_run_prog(const struct bpf_program *prog,
+			 struct bpf_test_run_opts *opts)
+{
+	int err;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(prog), opts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		return err;
+
+	if (!ASSERT_EQ((int)opts->retval, 0, bpf_program__name(prog)))
+		return -EINVAL;
+
+	return 0;
+}
+
+void test_kfunc_module_order(void)
+{
+	struct kfunc_module_order *skel;
+	char pkt_data[64] = {};
+	int err = 0;
+
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, test_opts, .data_in = pkt_data,
+			    .data_size_in = sizeof(pkt_data));
+
+	err = load_module("bpf_test_modorder_x.ko",
+			  env_verbosity > VERBOSE_NONE);
+	if (!ASSERT_OK(err, "load bpf_test_modorder_x.ko"))
+		return;
+
+	err = load_module("bpf_test_modorder_y.ko",
+			  env_verbosity > VERBOSE_NONE);
+	if (!ASSERT_OK(err, "load bpf_test_modorder_y.ko"))
+		goto exit_modx;
+
+	skel = kfunc_module_order__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kfunc_module_order__open_and_load()")) {
+		err = -EINVAL;
+		goto exit_mods;
+	}
+
+	test_run_prog(skel->progs.call_kfunc_xy, &test_opts);
+	test_run_prog(skel->progs.call_kfunc_yx, &test_opts);
+
+	kfunc_module_order__destroy(skel);
+exit_mods:
+	unload_module("bpf_test_modorder_y", env_verbosity > VERBOSE_NONE);
+exit_modx:
+	unload_module("bpf_test_modorder_x", env_verbosity > VERBOSE_NONE);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kfunc_param_nullable.c b/tools/testing/selftests/bpf/prog_tests/kfunc_param_nullable.c
new file mode 100644
index 000000000000..c8f4dcaac7c7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kfunc_param_nullable.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2024 Meta Platforms, Inc */
+
+#include <test_progs.h>
+#include "test_kfunc_param_nullable.skel.h"
+
+void test_kfunc_param_nullable(void)
+{
+	RUN_TESTS(test_kfunc_param_nullable);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kmem_cache_iter.c b/tools/testing/selftests/bpf/prog_tests/kmem_cache_iter.c
new file mode 100644
index 000000000000..6e35e13c2022
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kmem_cache_iter.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google */
+
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+#include "kmem_cache_iter.skel.h"
+
+#define SLAB_NAME_MAX  32
+
+struct kmem_cache_result {
+	char name[SLAB_NAME_MAX];
+	long obj_size;
+};
+
+static void subtest_kmem_cache_iter_check_task_struct(struct kmem_cache_iter *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.flags = 0,  /* Run it with the current task */
+	);
+	int prog_fd = bpf_program__fd(skel->progs.check_task_struct);
+
+	/* Get task_struct and check it if's from a slab cache */
+	ASSERT_OK(bpf_prog_test_run_opts(prog_fd, &opts), "prog_test_run");
+
+	/* The BPF program should set 'found' variable */
+	ASSERT_EQ(skel->bss->task_struct_found, 1, "task_struct_found");
+}
+
+static void subtest_kmem_cache_iter_check_slabinfo(struct kmem_cache_iter *skel)
+{
+	FILE *fp;
+	int map_fd;
+	char name[SLAB_NAME_MAX];
+	unsigned long objsize;
+	char rest_of_line[1000];
+	struct kmem_cache_result r;
+	int seen = 0;
+
+	fp = fopen("/proc/slabinfo", "r");
+	if (fp == NULL) {
+		/* CONFIG_SLUB_DEBUG is not enabled */
+		return;
+	}
+
+	map_fd = bpf_map__fd(skel->maps.slab_result);
+
+	/* Ignore first two lines for header */
+	fscanf(fp, "slabinfo - version: %*d.%*d\n");
+	fscanf(fp, "# %*s %*s %*s %*s %*s %*s : %[^\n]\n", rest_of_line);
+
+	/* Compare name and objsize only - others can be changes frequently */
+	while (fscanf(fp, "%s %*u %*u %lu %*u %*u : %[^\n]\n",
+		      name, &objsize, rest_of_line) == 3) {
+		int ret = bpf_map_lookup_elem(map_fd, &seen, &r);
+
+		if (!ASSERT_OK(ret, "kmem_cache_lookup"))
+			break;
+
+		ASSERT_STRNEQ(r.name, name, sizeof(r.name) - 1,
+			      "kmem_cache_name");
+		ASSERT_EQ(r.obj_size, objsize, "kmem_cache_objsize");
+
+		seen++;
+	}
+
+	ASSERT_EQ(skel->bss->kmem_cache_seen, seen, "kmem_cache_seen_eq");
+
+	fclose(fp);
+}
+
+static void subtest_kmem_cache_iter_open_coded(struct kmem_cache_iter *skel)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, fd;
+
+	/* No need to attach it, just run it directly */
+	fd = bpf_program__fd(skel->progs.open_coded_iter);
+
+	err = bpf_prog_test_run_opts(fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		return;
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		return;
+
+	/* It should be same as we've seen from the explicit iterator */
+	ASSERT_EQ(skel->bss->open_coded_seen, skel->bss->kmem_cache_seen, "open_code_seen_eq");
+}
+
+void test_kmem_cache_iter(void)
+{
+	struct kmem_cache_iter *skel = NULL;
+	char buf[256];
+	int iter_fd;
+
+	skel = kmem_cache_iter__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kmem_cache_iter__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(kmem_cache_iter__attach(skel), "skel_attach"))
+		goto destroy;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(skel->links.slab_info_collector));
+	if (!ASSERT_GE(iter_fd, 0, "iter_create"))
+		goto destroy;
+
+	memset(buf, 0, sizeof(buf));
+	while (read(iter_fd, buf, sizeof(buf)) > 0) {
+		/* Read out all contents */
+		printf("%s", buf);
+	}
+
+	/* Next reads should return 0 */
+	ASSERT_EQ(read(iter_fd, buf, sizeof(buf)), 0, "read");
+
+	if (test__start_subtest("check_task_struct"))
+		subtest_kmem_cache_iter_check_task_struct(skel);
+	if (test__start_subtest("check_slabinfo"))
+		subtest_kmem_cache_iter_check_slabinfo(skel);
+	if (test__start_subtest("open_coded_iter"))
+		subtest_kmem_cache_iter_open_coded(skel);
+
+	close(iter_fd);
+
+destroy:
+	kmem_cache_iter__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
new file mode 100644
index 000000000000..6cfaa978bc9a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
@@ -0,0 +1,609 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "kprobe_multi.skel.h"
+#include "trace_helpers.h"
+#include "kprobe_multi_empty.skel.h"
+#include "kprobe_multi_override.skel.h"
+#include "kprobe_multi_session.skel.h"
+#include "kprobe_multi_session_cookie.skel.h"
+#include "kprobe_multi_verifier.skel.h"
+#include "kprobe_write_ctx.skel.h"
+#include "bpf/libbpf_internal.h"
+#include "bpf/hashmap.h"
+
+static void kprobe_multi_test_run(struct kprobe_multi *skel, bool test_return)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	int err, prog_fd;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(skel->bss->kprobe_test1_result, 1, "kprobe_test1_result");
+	ASSERT_EQ(skel->bss->kprobe_test2_result, 1, "kprobe_test2_result");
+	ASSERT_EQ(skel->bss->kprobe_test3_result, 1, "kprobe_test3_result");
+	ASSERT_EQ(skel->bss->kprobe_test4_result, 1, "kprobe_test4_result");
+	ASSERT_EQ(skel->bss->kprobe_test5_result, 1, "kprobe_test5_result");
+	ASSERT_EQ(skel->bss->kprobe_test6_result, 1, "kprobe_test6_result");
+	ASSERT_EQ(skel->bss->kprobe_test7_result, 1, "kprobe_test7_result");
+	ASSERT_EQ(skel->bss->kprobe_test8_result, 1, "kprobe_test8_result");
+
+	if (test_return) {
+		ASSERT_EQ(skel->bss->kretprobe_test1_result, 1, "kretprobe_test1_result");
+		ASSERT_EQ(skel->bss->kretprobe_test2_result, 1, "kretprobe_test2_result");
+		ASSERT_EQ(skel->bss->kretprobe_test3_result, 1, "kretprobe_test3_result");
+		ASSERT_EQ(skel->bss->kretprobe_test4_result, 1, "kretprobe_test4_result");
+		ASSERT_EQ(skel->bss->kretprobe_test5_result, 1, "kretprobe_test5_result");
+		ASSERT_EQ(skel->bss->kretprobe_test6_result, 1, "kretprobe_test6_result");
+		ASSERT_EQ(skel->bss->kretprobe_test7_result, 1, "kretprobe_test7_result");
+		ASSERT_EQ(skel->bss->kretprobe_test8_result, 1, "kretprobe_test8_result");
+	}
+}
+
+static void test_skel_api(void)
+{
+	struct kprobe_multi *skel = NULL;
+	int err;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi__open_and_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	err = kprobe_multi__attach(skel);
+	if (!ASSERT_OK(err, "kprobe_multi__attach"))
+		goto cleanup;
+
+	kprobe_multi_test_run(skel, true);
+
+cleanup:
+	kprobe_multi__destroy(skel);
+}
+
+static void test_link_api(struct bpf_link_create_opts *opts)
+{
+	int prog_fd, link1_fd = -1, link2_fd = -1;
+	struct kprobe_multi *skel = NULL;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	prog_fd = bpf_program__fd(skel->progs.test_kprobe);
+	link1_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_KPROBE_MULTI, opts);
+	if (!ASSERT_GE(link1_fd, 0, "link_fd"))
+		goto cleanup;
+
+	opts->kprobe_multi.flags = BPF_F_KPROBE_MULTI_RETURN;
+	prog_fd = bpf_program__fd(skel->progs.test_kretprobe);
+	link2_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_KPROBE_MULTI, opts);
+	if (!ASSERT_GE(link2_fd, 0, "link_fd"))
+		goto cleanup;
+
+	kprobe_multi_test_run(skel, true);
+
+cleanup:
+	if (link1_fd != -1)
+		close(link1_fd);
+	if (link2_fd != -1)
+		close(link2_fd);
+	kprobe_multi__destroy(skel);
+}
+
+#define GET_ADDR(__sym, __addr) ({					\
+	__addr = ksym_get_addr(__sym);					\
+	if (!ASSERT_NEQ(__addr, 0, "kallsyms load failed for " #__sym))	\
+		return;							\
+})
+
+static void test_link_api_addrs(void)
+{
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	unsigned long long addrs[8];
+
+	GET_ADDR("bpf_fentry_test1", addrs[0]);
+	GET_ADDR("bpf_fentry_test2", addrs[1]);
+	GET_ADDR("bpf_fentry_test3", addrs[2]);
+	GET_ADDR("bpf_fentry_test4", addrs[3]);
+	GET_ADDR("bpf_fentry_test5", addrs[4]);
+	GET_ADDR("bpf_fentry_test6", addrs[5]);
+	GET_ADDR("bpf_fentry_test7", addrs[6]);
+	GET_ADDR("bpf_fentry_test8", addrs[7]);
+
+	opts.kprobe_multi.addrs = (const unsigned long*) addrs;
+	opts.kprobe_multi.cnt = ARRAY_SIZE(addrs);
+	test_link_api(&opts);
+}
+
+static void test_link_api_syms(void)
+{
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	const char *syms[8] = {
+		"bpf_fentry_test1",
+		"bpf_fentry_test2",
+		"bpf_fentry_test3",
+		"bpf_fentry_test4",
+		"bpf_fentry_test5",
+		"bpf_fentry_test6",
+		"bpf_fentry_test7",
+		"bpf_fentry_test8",
+	};
+
+	opts.kprobe_multi.syms = syms;
+	opts.kprobe_multi.cnt = ARRAY_SIZE(syms);
+	test_link_api(&opts);
+}
+
+static void
+test_attach_api(const char *pattern, struct bpf_kprobe_multi_opts *opts)
+{
+	struct bpf_link *link1 = NULL, *link2 = NULL;
+	struct kprobe_multi *skel = NULL;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	link1 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						      pattern, opts);
+	if (!ASSERT_OK_PTR(link1, "bpf_program__attach_kprobe_multi_opts"))
+		goto cleanup;
+
+	if (opts) {
+		opts->retprobe = true;
+		link2 = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kretprobe_manual,
+							      pattern, opts);
+		if (!ASSERT_OK_PTR(link2, "bpf_program__attach_kprobe_multi_opts"))
+			goto cleanup;
+	}
+
+	kprobe_multi_test_run(skel, !!opts);
+
+cleanup:
+	bpf_link__destroy(link2);
+	bpf_link__destroy(link1);
+	kprobe_multi__destroy(skel);
+}
+
+static void test_attach_api_pattern(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+
+	test_attach_api("bpf_fentry_test*", &opts);
+	test_attach_api("bpf_fentry_test?", NULL);
+}
+
+static void test_attach_api_addrs(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	unsigned long long addrs[8];
+
+	GET_ADDR("bpf_fentry_test1", addrs[0]);
+	GET_ADDR("bpf_fentry_test2", addrs[1]);
+	GET_ADDR("bpf_fentry_test3", addrs[2]);
+	GET_ADDR("bpf_fentry_test4", addrs[3]);
+	GET_ADDR("bpf_fentry_test5", addrs[4]);
+	GET_ADDR("bpf_fentry_test6", addrs[5]);
+	GET_ADDR("bpf_fentry_test7", addrs[6]);
+	GET_ADDR("bpf_fentry_test8", addrs[7]);
+
+	opts.addrs = (const unsigned long *) addrs;
+	opts.cnt = ARRAY_SIZE(addrs);
+	test_attach_api(NULL, &opts);
+}
+
+static void test_attach_api_syms(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	const char *syms[8] = {
+		"bpf_fentry_test1",
+		"bpf_fentry_test2",
+		"bpf_fentry_test3",
+		"bpf_fentry_test4",
+		"bpf_fentry_test5",
+		"bpf_fentry_test6",
+		"bpf_fentry_test7",
+		"bpf_fentry_test8",
+	};
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	test_attach_api(NULL, &opts);
+}
+
+static void test_attach_api_fails(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct kprobe_multi *skel = NULL;
+	struct bpf_link *link = NULL;
+	unsigned long long addrs[2];
+	const char *syms[2] = {
+		"bpf_fentry_test1",
+		"bpf_fentry_test2",
+	};
+	__u64 cookies[2];
+	int saved_error;
+
+	addrs[0] = ksym_get_addr("bpf_fentry_test1");
+	addrs[1] = ksym_get_addr("bpf_fentry_test2");
+
+	if (!ASSERT_FALSE(!addrs[0] || !addrs[1], "ksym_get_addr"))
+		goto cleanup;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+
+	/* fail_1 - pattern and opts NULL */
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     NULL, NULL);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_1"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -EINVAL, "fail_1_error"))
+		goto cleanup;
+
+	/* fail_2 - both addrs and syms set */
+	opts.addrs = (const unsigned long *) addrs;
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	opts.cookies = NULL;
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     NULL, &opts);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_2"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -EINVAL, "fail_2_error"))
+		goto cleanup;
+
+	/* fail_3 - pattern and addrs set */
+	opts.addrs = (const unsigned long *) addrs;
+	opts.syms = NULL;
+	opts.cnt = ARRAY_SIZE(syms);
+	opts.cookies = NULL;
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     "ksys_*", &opts);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_3"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -EINVAL, "fail_3_error"))
+		goto cleanup;
+
+	/* fail_4 - pattern and cnt set */
+	opts.addrs = NULL;
+	opts.syms = NULL;
+	opts.cnt = ARRAY_SIZE(syms);
+	opts.cookies = NULL;
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     "ksys_*", &opts);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_4"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -EINVAL, "fail_4_error"))
+		goto cleanup;
+
+	/* fail_5 - pattern and cookies */
+	opts.addrs = NULL;
+	opts.syms = NULL;
+	opts.cnt = 0;
+	opts.cookies = cookies;
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     "ksys_*", &opts);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_5"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -EINVAL, "fail_5_error"))
+		goto cleanup;
+
+	/* fail_6 - abnormal cnt */
+	opts.addrs = (const unsigned long *) addrs;
+	opts.syms = NULL;
+	opts.cnt = INT_MAX;
+	opts.cookies = NULL;
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     NULL, &opts);
+	saved_error = -errno;
+	if (!ASSERT_ERR_PTR(link, "fail_6"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(saved_error, -E2BIG, "fail_6_error"))
+		goto cleanup;
+
+cleanup:
+	bpf_link__destroy(link);
+	kprobe_multi__destroy(skel);
+}
+
+static void test_session_skel_api(void)
+{
+	struct kprobe_multi_session *skel = NULL;
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_link *link = NULL;
+	int i, err, prog_fd;
+
+	skel = kprobe_multi_session__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi_session__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	err = kprobe_multi_session__attach(skel);
+	if (!ASSERT_OK(err, " kprobe_multi_session__attach"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	/* bpf_fentry_test1-4 trigger return probe, result is 2 */
+	for (i = 0; i < 4; i++)
+		ASSERT_EQ(skel->bss->kprobe_session_result[i], 2, "kprobe_session_result");
+
+	/* bpf_fentry_test5-8 trigger only entry probe, result is 1 */
+	for (i = 4; i < 8; i++)
+		ASSERT_EQ(skel->bss->kprobe_session_result[i], 1, "kprobe_session_result");
+
+cleanup:
+	bpf_link__destroy(link);
+	kprobe_multi_session__destroy(skel);
+}
+
+static void test_session_cookie_skel_api(void)
+{
+	struct kprobe_multi_session_cookie *skel = NULL;
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_link *link = NULL;
+	int err, prog_fd;
+
+	skel = kprobe_multi_session_cookie__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	err = kprobe_multi_session_cookie__attach(skel);
+	if (!ASSERT_OK(err, " kprobe_multi_wrapper__attach"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(skel->bss->test_kprobe_1_result, 1, "test_kprobe_1_result");
+	ASSERT_EQ(skel->bss->test_kprobe_2_result, 2, "test_kprobe_2_result");
+	ASSERT_EQ(skel->bss->test_kprobe_3_result, 3, "test_kprobe_3_result");
+
+cleanup:
+	bpf_link__destroy(link);
+	kprobe_multi_session_cookie__destroy(skel);
+}
+
+static void test_unique_match(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct kprobe_multi *skel = NULL;
+	struct bpf_link *link = NULL;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi__open_and_load"))
+		return;
+
+	opts.unique_match = true;
+	skel->bss->pid = getpid();
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     "bpf_fentry_test*", &opts);
+	if (!ASSERT_ERR_PTR(link, "bpf_program__attach_kprobe_multi_opts"))
+		bpf_link__destroy(link);
+
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_manual,
+						     "bpf_fentry_test8*", &opts);
+	if (ASSERT_OK_PTR(link, "bpf_program__attach_kprobe_multi_opts"))
+		bpf_link__destroy(link);
+
+	kprobe_multi__destroy(skel);
+}
+
+static void do_bench_test(struct kprobe_multi_empty *skel, struct bpf_kprobe_multi_opts *opts)
+{
+	long attach_start_ns, attach_end_ns;
+	long detach_start_ns, detach_end_ns;
+	double attach_delta, detach_delta;
+	struct bpf_link *link = NULL;
+
+	attach_start_ns = get_time_ns();
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_kprobe_empty,
+						     NULL, opts);
+	attach_end_ns = get_time_ns();
+
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_kprobe_multi_opts"))
+		return;
+
+	detach_start_ns = get_time_ns();
+	bpf_link__destroy(link);
+	detach_end_ns = get_time_ns();
+
+	attach_delta = (attach_end_ns - attach_start_ns) / 1000000000.0;
+	detach_delta = (detach_end_ns - detach_start_ns) / 1000000000.0;
+
+	printf("%s: found %lu functions\n", __func__, opts->cnt);
+	printf("%s: attached in %7.3lfs\n", __func__, attach_delta);
+	printf("%s: detached in %7.3lfs\n", __func__, detach_delta);
+}
+
+static void test_kprobe_multi_bench_attach(bool kernel)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct kprobe_multi_empty *skel = NULL;
+	char **syms = NULL;
+	size_t cnt = 0;
+
+	if (!ASSERT_OK(bpf_get_ksyms(&syms, &cnt, kernel), "bpf_get_ksyms"))
+		return;
+
+	skel = kprobe_multi_empty__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load"))
+		goto cleanup;
+
+	opts.syms = (const char **) syms;
+	opts.cnt = cnt;
+
+	do_bench_test(skel, &opts);
+
+cleanup:
+	kprobe_multi_empty__destroy(skel);
+	if (syms)
+		free(syms);
+}
+
+static void test_kprobe_multi_bench_attach_addr(bool kernel)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct kprobe_multi_empty *skel = NULL;
+	unsigned long *addrs = NULL;
+	size_t cnt = 0;
+	int err;
+
+	err = bpf_get_addrs(&addrs, &cnt, kernel);
+	if (err == -ENOENT) {
+		test__skip();
+		return;
+	}
+
+	if (!ASSERT_OK(err, "bpf_get_addrs"))
+		return;
+
+	skel = kprobe_multi_empty__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load"))
+		goto cleanup;
+
+	opts.addrs = addrs;
+	opts.cnt = cnt;
+
+	do_bench_test(skel, &opts);
+
+cleanup:
+	kprobe_multi_empty__destroy(skel);
+	free(addrs);
+}
+
+static void test_attach_override(void)
+{
+	struct kprobe_multi_override *skel = NULL;
+	struct bpf_link *link = NULL;
+
+	skel = kprobe_multi_override__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_multi_empty__open_and_load"))
+		goto cleanup;
+
+	/* The test_override calls bpf_override_return so it should fail
+	 * to attach to bpf_fentry_test1 function, which is not on error
+	 * injection list.
+	 */
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_override,
+						     "bpf_fentry_test1", NULL);
+	if (!ASSERT_ERR_PTR(link, "override_attached_bpf_fentry_test1")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	/* The should_fail_bio function is on error injection list,
+	 * attach should succeed.
+	 */
+	link = bpf_program__attach_kprobe_multi_opts(skel->progs.test_override,
+						     "should_fail_bio", NULL);
+	if (!ASSERT_OK_PTR(link, "override_attached_should_fail_bio"))
+		goto cleanup;
+
+	bpf_link__destroy(link);
+
+cleanup:
+	kprobe_multi_override__destroy(skel);
+}
+
+#ifdef __x86_64__
+static void test_attach_write_ctx(void)
+{
+	struct kprobe_write_ctx *skel = NULL;
+	struct bpf_link *link = NULL;
+
+	skel = kprobe_write_ctx__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "kprobe_write_ctx__open_and_load"))
+		return;
+
+	link = bpf_program__attach_kprobe_opts(skel->progs.kprobe_multi_write_ctx,
+						     "bpf_fentry_test1", NULL);
+	if (!ASSERT_ERR_PTR(link, "bpf_program__attach_kprobe_opts"))
+		bpf_link__destroy(link);
+
+	kprobe_write_ctx__destroy(skel);
+}
+#else
+static void test_attach_write_ctx(void)
+{
+	test__skip();
+}
+#endif
+
+void serial_test_kprobe_multi_bench_attach(void)
+{
+	if (test__start_subtest("kernel"))
+		test_kprobe_multi_bench_attach(true);
+	if (test__start_subtest("modules"))
+		test_kprobe_multi_bench_attach(false);
+	if (test__start_subtest("kernel"))
+		test_kprobe_multi_bench_attach_addr(true);
+	if (test__start_subtest("modules"))
+		test_kprobe_multi_bench_attach_addr(false);
+}
+
+void test_kprobe_multi_test(void)
+{
+	if (!ASSERT_OK(load_kallsyms(), "load_kallsyms"))
+		return;
+
+	if (test__start_subtest("skel_api"))
+		test_skel_api();
+	if (test__start_subtest("link_api_addrs"))
+		test_link_api_syms();
+	if (test__start_subtest("link_api_syms"))
+		test_link_api_addrs();
+	if (test__start_subtest("attach_api_pattern"))
+		test_attach_api_pattern();
+	if (test__start_subtest("attach_api_addrs"))
+		test_attach_api_addrs();
+	if (test__start_subtest("attach_api_syms"))
+		test_attach_api_syms();
+	if (test__start_subtest("attach_api_fails"))
+		test_attach_api_fails();
+	if (test__start_subtest("attach_override"))
+		test_attach_override();
+	if (test__start_subtest("session"))
+		test_session_skel_api();
+	if (test__start_subtest("session_cookie"))
+		test_session_cookie_skel_api();
+	if (test__start_subtest("unique_match"))
+		test_unique_match();
+	if (test__start_subtest("attach_write_ctx"))
+		test_attach_write_ctx();
+	RUN_TESTS(kprobe_multi_verifier);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c
new file mode 100644
index 000000000000..9d03528f05db
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_testmod_test.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "kprobe_multi.skel.h"
+#include "trace_helpers.h"
+#include "bpf/libbpf_internal.h"
+
+static struct ksyms *ksyms;
+
+static void kprobe_multi_testmod_check(struct kprobe_multi *skel)
+{
+	ASSERT_EQ(skel->bss->kprobe_testmod_test1_result, 1, "kprobe_test1_result");
+	ASSERT_EQ(skel->bss->kprobe_testmod_test2_result, 1, "kprobe_test2_result");
+	ASSERT_EQ(skel->bss->kprobe_testmod_test3_result, 1, "kprobe_test3_result");
+
+	ASSERT_EQ(skel->bss->kretprobe_testmod_test1_result, 1, "kretprobe_test1_result");
+	ASSERT_EQ(skel->bss->kretprobe_testmod_test2_result, 1, "kretprobe_test2_result");
+	ASSERT_EQ(skel->bss->kretprobe_testmod_test3_result, 1, "kretprobe_test3_result");
+}
+
+static void test_testmod_attach_api(struct bpf_kprobe_multi_opts *opts)
+{
+	struct kprobe_multi *skel = NULL;
+
+	skel = kprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "fentry_raw_skel_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	skel->links.test_kprobe_testmod = bpf_program__attach_kprobe_multi_opts(
+						skel->progs.test_kprobe_testmod,
+						NULL, opts);
+	if (!skel->links.test_kprobe_testmod)
+		goto cleanup;
+
+	opts->retprobe = true;
+	skel->links.test_kretprobe_testmod = bpf_program__attach_kprobe_multi_opts(
+						skel->progs.test_kretprobe_testmod,
+						NULL, opts);
+	if (!skel->links.test_kretprobe_testmod)
+		goto cleanup;
+
+	ASSERT_OK(trigger_module_test_read(1), "trigger_read");
+	kprobe_multi_testmod_check(skel);
+
+cleanup:
+	kprobe_multi__destroy(skel);
+}
+
+static void test_testmod_attach_api_addrs(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	unsigned long long addrs[3];
+
+	addrs[0] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test1");
+	ASSERT_NEQ(addrs[0], 0, "ksym_get_addr_local");
+	addrs[1] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test2");
+	ASSERT_NEQ(addrs[1], 0, "ksym_get_addr_local");
+	addrs[2] = ksym_get_addr_local(ksyms, "bpf_testmod_fentry_test3");
+	ASSERT_NEQ(addrs[2], 0, "ksym_get_addr_local");
+
+	opts.addrs = (const unsigned long *) addrs;
+	opts.cnt = ARRAY_SIZE(addrs);
+
+	test_testmod_attach_api(&opts);
+}
+
+static void test_testmod_attach_api_syms(void)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	const char *syms[3] = {
+		"bpf_testmod_fentry_test1",
+		"bpf_testmod_fentry_test2",
+		"bpf_testmod_fentry_test3",
+	};
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	test_testmod_attach_api(&opts);
+}
+
+void serial_test_kprobe_multi_testmod_test(void)
+{
+	ksyms = load_kallsyms_local();
+	if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_local"))
+		return;
+
+	if (test__start_subtest("testmod_attach_api_syms"))
+		test_testmod_attach_api_syms();
+
+	if (test__start_subtest("testmod_attach_api_addrs"))
+		test_testmod_attach_api_addrs();
+
+	free_kallsyms_local(ksyms);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/kptr_xchg_inline.c b/tools/testing/selftests/bpf/prog_tests/kptr_xchg_inline.c
new file mode 100644
index 000000000000..7def158da9eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/kptr_xchg_inline.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <test_progs.h>
+
+#include "linux/filter.h"
+#include "kptr_xchg_inline.skel.h"
+
+void test_kptr_xchg_inline(void)
+{
+	struct kptr_xchg_inline *skel;
+	struct bpf_insn *insn = NULL;
+	struct bpf_insn exp;
+	unsigned int cnt;
+	int err;
+
+#if !(defined(__x86_64__) || defined(__aarch64__) || \
+      (defined(__riscv) && __riscv_xlen == 64))
+	test__skip();
+	return;
+#endif
+
+	skel = kptr_xchg_inline__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_load"))
+		return;
+
+	err = get_xlated_program(bpf_program__fd(skel->progs.kptr_xchg_inline), &insn, &cnt);
+	if (!ASSERT_OK(err, "prog insn"))
+		goto out;
+
+	/* The original instructions are:
+	 * r1 = map[id:xxx][0]+0
+	 * r2 = 0
+	 * call bpf_kptr_xchg#yyy
+	 *
+	 * call bpf_kptr_xchg#yyy will be inlined as:
+	 * r0 = r2
+	 * r0 = atomic64_xchg((u64 *)(r1 +0), r0)
+	 */
+	if (!ASSERT_GT(cnt, 5, "insn cnt"))
+		goto out;
+
+	exp = BPF_MOV64_REG(BPF_REG_0, BPF_REG_2);
+	if (!ASSERT_OK(memcmp(&insn[3], &exp, sizeof(exp)), "mov"))
+		goto out;
+
+	exp = BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_1, BPF_REG_0, 0);
+	if (!ASSERT_OK(memcmp(&insn[4], &exp, sizeof(exp)), "xchg"))
+		goto out;
+out:
+	free(insn);
+	kptr_xchg_inline__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms.c b/tools/testing/selftests/bpf/prog_tests/ksyms.c
new file mode 100644
index 000000000000..dc7aab532fb1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <test_progs.h>
+#include "test_ksyms.skel.h"
+#include <sys/stat.h>
+
+void test_ksyms(void)
+{
+	const char *btf_path = "/sys/kernel/btf/vmlinux";
+	struct test_ksyms *skel;
+	struct test_ksyms__data *data;
+	__u64 link_fops_addr, per_cpu_start_addr;
+	struct stat st;
+	__u64 btf_size;
+	int err;
+
+	err = kallsyms_find("bpf_link_fops", &link_fops_addr);
+	if (!ASSERT_NEQ(err, -EINVAL, "bpf_link_fops: kallsyms_fopen"))
+		return;
+	if (!ASSERT_NEQ(err, -ENOENT, "bpf_link_fops: ksym_find"))
+		return;
+
+	err = kallsyms_find("__per_cpu_start", &per_cpu_start_addr);
+	if (!ASSERT_NEQ(err, -EINVAL, "__per_cpu_start: kallsyms_fopen"))
+		return;
+	if (!ASSERT_NEQ(err, -ENOENT, "__per_cpu_start: ksym_find"))
+		return;
+
+	if (!ASSERT_OK(stat(btf_path, &st), "stat_btf"))
+		return;
+	btf_size = st.st_size;
+
+	skel = test_ksyms__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms__open_and_load"))
+		return;
+
+	err = test_ksyms__attach(skel);
+	if (!ASSERT_OK(err, "test_ksyms__attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	data = skel->data;
+	ASSERT_EQ(data->out__bpf_link_fops, link_fops_addr, "bpf_link_fops");
+	ASSERT_EQ(data->out__bpf_link_fops1, 0, "bpf_link_fops1");
+	ASSERT_EQ(data->out__btf_size, btf_size, "btf_size");
+	ASSERT_EQ(data->out__per_cpu_start, per_cpu_start_addr, "__per_cpu_start");
+
+cleanup:
+	test_ksyms__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
new file mode 100644
index 000000000000..1d7a2f1e0731
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_btf.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Google */
+
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+#include "test_ksyms_btf.skel.h"
+#include "test_ksyms_btf_null_check.skel.h"
+#include "test_ksyms_weak.skel.h"
+#include "test_ksyms_weak.lskel.h"
+#include "test_ksyms_btf_write_check.skel.h"
+
+static int duration;
+
+static void test_basic(void)
+{
+	__u64 runqueues_addr, bpf_prog_active_addr;
+	__u32 this_rq_cpu;
+	int this_bpf_prog_active;
+	struct test_ksyms_btf *skel = NULL;
+	struct test_ksyms_btf__data *data;
+	int err;
+
+	err = kallsyms_find("runqueues", &runqueues_addr);
+	if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno))
+		return;
+	if (CHECK(err == -ENOENT, "ksym_find", "symbol 'runqueues' not found\n"))
+		return;
+
+	err = kallsyms_find("bpf_prog_active", &bpf_prog_active_addr);
+	if (CHECK(err == -EINVAL, "kallsyms_fopen", "failed to open: %d\n", errno))
+		return;
+	if (CHECK(err == -ENOENT, "ksym_find", "symbol 'bpf_prog_active' not found\n"))
+		return;
+
+	skel = test_ksyms_btf__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open and load skeleton\n"))
+		goto cleanup;
+
+	err = test_ksyms_btf__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	data = skel->data;
+	CHECK(data->out__runqueues_addr != runqueues_addr, "runqueues_addr",
+	      "got %llu, exp %llu\n",
+	      (unsigned long long)data->out__runqueues_addr,
+	      (unsigned long long)runqueues_addr);
+	CHECK(data->out__bpf_prog_active_addr != bpf_prog_active_addr, "bpf_prog_active_addr",
+	      "got %llu, exp %llu\n",
+	      (unsigned long long)data->out__bpf_prog_active_addr,
+	      (unsigned long long)bpf_prog_active_addr);
+
+	CHECK(data->out__rq_cpu == -1, "rq_cpu",
+	      "got %u, exp != -1\n", data->out__rq_cpu);
+	CHECK(data->out__bpf_prog_active < 0, "bpf_prog_active",
+	      "got %d, exp >= 0\n", data->out__bpf_prog_active);
+	CHECK(data->out__cpu_0_rq_cpu != 0, "cpu_rq(0)->cpu",
+	      "got %u, exp 0\n", data->out__cpu_0_rq_cpu);
+
+	this_rq_cpu = data->out__this_rq_cpu;
+	CHECK(this_rq_cpu != data->out__rq_cpu, "this_rq_cpu",
+	      "got %u, exp %u\n", this_rq_cpu, data->out__rq_cpu);
+
+	this_bpf_prog_active = data->out__this_bpf_prog_active;
+	CHECK(this_bpf_prog_active != data->out__bpf_prog_active, "this_bpf_prog_active",
+	      "got %d, exp %d\n", this_bpf_prog_active,
+	      data->out__bpf_prog_active);
+
+cleanup:
+	test_ksyms_btf__destroy(skel);
+}
+
+static void test_null_check(void)
+{
+	struct test_ksyms_btf_null_check *skel;
+
+	skel = test_ksyms_btf_null_check__open_and_load();
+	CHECK(skel, "skel_open", "unexpected load of a prog missing null check\n");
+
+	test_ksyms_btf_null_check__destroy(skel);
+}
+
+static void test_weak_syms(void)
+{
+	struct test_ksyms_weak *skel;
+	struct test_ksyms_weak__data *data;
+	int err;
+
+	skel = test_ksyms_weak__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms_weak__open_and_load"))
+		return;
+
+	err = test_ksyms_weak__attach(skel);
+	if (!ASSERT_OK(err, "test_ksyms_weak__attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	data = skel->data;
+	ASSERT_EQ(data->out__existing_typed, 0, "existing typed ksym");
+	ASSERT_NEQ(data->out__existing_typeless, -1, "existing typeless ksym");
+	ASSERT_EQ(data->out__non_existent_typeless, 0, "nonexistent typeless ksym");
+	ASSERT_EQ(data->out__non_existent_typed, 0, "nonexistent typed ksym");
+
+cleanup:
+	test_ksyms_weak__destroy(skel);
+}
+
+static void test_weak_syms_lskel(void)
+{
+	struct test_ksyms_weak_lskel *skel;
+	struct test_ksyms_weak_lskel__data *data;
+	int err;
+
+	skel = test_ksyms_weak_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms_weak_lskel__open_and_load"))
+		return;
+
+	err = test_ksyms_weak_lskel__attach(skel);
+	if (!ASSERT_OK(err, "test_ksyms_weak_lskel__attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	data = skel->data;
+	ASSERT_EQ(data->out__existing_typed, 0, "existing typed ksym");
+	ASSERT_NEQ(data->out__existing_typeless, -1, "existing typeless ksym");
+	ASSERT_EQ(data->out__non_existent_typeless, 0, "nonexistent typeless ksym");
+	ASSERT_EQ(data->out__non_existent_typed, 0, "nonexistent typed ksym");
+
+cleanup:
+	test_ksyms_weak_lskel__destroy(skel);
+}
+
+static void test_write_check(bool test_handler1)
+{
+	struct test_ksyms_btf_write_check *skel;
+
+	skel = test_ksyms_btf_write_check__open();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms_btf_write_check__open"))
+		return;
+	bpf_program__set_autoload(test_handler1 ? skel->progs.handler2 : skel->progs.handler1, false);
+	ASSERT_ERR(test_ksyms_btf_write_check__load(skel),
+		   "unexpected load of a prog writing to ksym memory\n");
+
+	test_ksyms_btf_write_check__destroy(skel);
+}
+
+void test_ksyms_btf(void)
+{
+	int percpu_datasec;
+	struct btf *btf;
+
+	btf = libbpf_find_kernel_btf();
+	if (!ASSERT_OK_PTR(btf, "btf_exists"))
+		return;
+
+	percpu_datasec = btf__find_by_name_kind(btf, ".data..percpu",
+						BTF_KIND_DATASEC);
+	btf__free(btf);
+	if (percpu_datasec < 0) {
+		printf("%s:SKIP:no PERCPU DATASEC in kernel btf\n",
+		       __func__);
+		test__skip();
+		return;
+	}
+
+	if (test__start_subtest("basic"))
+		test_basic();
+
+	if (test__start_subtest("null_check"))
+		test_null_check();
+
+	if (test__start_subtest("weak_ksyms"))
+		test_weak_syms();
+
+	if (test__start_subtest("weak_ksyms_lskel"))
+		test_weak_syms_lskel();
+
+	if (test__start_subtest("write_check1"))
+		test_write_check(true);
+
+	if (test__start_subtest("write_check2"))
+		test_write_check(false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ksyms_module.c b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
new file mode 100644
index 000000000000..a1ebac70ec29
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ksyms_module.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_ksyms_module.lskel.h"
+#include "test_ksyms_module.skel.h"
+
+static void test_ksyms_module_lskel(void)
+{
+	struct test_ksyms_module_lskel *skel;
+	int err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	skel = test_ksyms_module_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms_module_lskel__open_and_load"))
+		return;
+	err = bpf_prog_test_run_opts(skel->progs.load.prog_fd, &topts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run"))
+		goto cleanup;
+	ASSERT_EQ(topts.retval, 0, "retval");
+	ASSERT_EQ(skel->bss->out_bpf_testmod_ksym, 42, "bpf_testmod_ksym");
+cleanup:
+	test_ksyms_module_lskel__destroy(skel);
+}
+
+static void test_ksyms_module_libbpf(void)
+{
+	struct test_ksyms_module *skel;
+	int err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	skel = test_ksyms_module__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_ksyms_module__open"))
+		return;
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.load), &topts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run"))
+		goto cleanup;
+	ASSERT_EQ(topts.retval, 0, "retval");
+	ASSERT_EQ(skel->bss->out_bpf_testmod_ksym, 42, "bpf_testmod_ksym");
+cleanup:
+	test_ksyms_module__destroy(skel);
+}
+
+void test_ksyms_module(void)
+{
+	if (test__start_subtest("lskel"))
+		test_ksyms_module_lskel();
+	if (test__start_subtest("libbpf"))
+		test_ksyms_module_libbpf();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/l4lb_all.c b/tools/testing/selftests/bpf/prog_tests/l4lb_all.c
new file mode 100644
index 000000000000..1eab286b14fe
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/l4lb_all.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void test_l4lb(const char *file)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	struct vip key = {.protocol = 6};
+	struct vip_meta {
+		__u32 flags;
+		__u32 vip_num;
+	} value = {.vip_num = VIP_NUM};
+	__u32 stats_key = VIP_NUM;
+	struct vip_stats {
+		__u64 bytes;
+		__u64 pkts;
+	} stats[nr_cpus];
+	struct real_definition {
+		union {
+			__be32 dst;
+			__be32 dstv6[4];
+		};
+		__u8 flags;
+	} real_def = {.dst = MAGIC_VAL};
+	__u32 ch_key = 11, real_num = 3;
+	int err, i, prog_fd, map_fd;
+	__u64 bytes = 0, pkts = 0;
+	struct bpf_object *obj;
+	char buf[128];
+	u32 *magic = (u32 *)buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = NUM_ITER,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	map_fd = bpf_find_map(__func__, obj, "vip_map");
+	if (map_fd < 0)
+		goto out;
+	bpf_map_update_elem(map_fd, &key, &value, 0);
+
+	map_fd = bpf_find_map(__func__, obj, "ch_rings");
+	if (map_fd < 0)
+		goto out;
+	bpf_map_update_elem(map_fd, &ch_key, &real_num, 0);
+
+	map_fd = bpf_find_map(__func__, obj, "reals");
+	if (map_fd < 0)
+		goto out;
+	bpf_map_update_elem(map_fd, &real_num, &real_def, 0);
+
+	topts.data_in = &pkt_v4;
+	topts.data_size_in = sizeof(pkt_v4);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv4 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out");
+	ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 magic");
+
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_size_out = sizeof(buf); /* reset out size */
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 7 /*TC_ACT_REDIRECT*/, "ipv6 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out");
+	ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 magic");
+
+	map_fd = bpf_find_map(__func__, obj, "stats");
+	if (map_fd < 0)
+		goto out;
+	bpf_map_lookup_elem(map_fd, &stats_key, stats);
+	for (i = 0; i < nr_cpus; i++) {
+		bytes += stats[i].bytes;
+		pkts += stats[i].pkts;
+	}
+	if (CHECK_FAIL(bytes != MAGIC_BYTES * NUM_ITER * 2 ||
+		       pkts != NUM_ITER * 2))
+		printf("test_l4lb:FAIL:stats %lld %lld\n", bytes, pkts);
+out:
+	bpf_object__close(obj);
+}
+
+void test_l4lb_all(void)
+{
+	if (test__start_subtest("l4lb_inline"))
+		test_l4lb("test_l4lb.bpf.o");
+	if (test__start_subtest("l4lb_noinline"))
+		test_l4lb("test_l4lb_noinline.bpf.o");
+	if (test__start_subtest("l4lb_noinline_dynptr"))
+		test_l4lb("test_l4lb_noinline_dynptr.bpf.o");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/legacy_printk.c b/tools/testing/selftests/bpf/prog_tests/legacy_printk.c
new file mode 100644
index 000000000000..ec6e45f2a644
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/legacy_printk.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "test_legacy_printk.skel.h"
+
+static int execute_one_variant(bool legacy)
+{
+	struct test_legacy_printk *skel;
+	int err, zero = 0, my_pid = getpid(), res, map_fd;
+
+	skel = test_legacy_printk__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return -errno;
+
+	bpf_program__set_autoload(skel->progs.handle_legacy, legacy);
+	bpf_program__set_autoload(skel->progs.handle_modern, !legacy);
+
+	err = test_legacy_printk__load(skel);
+	/* no ASSERT_OK, we expect one of two variants can fail here */
+	if (err)
+		goto err_out;
+
+	if (legacy) {
+		map_fd = bpf_map__fd(skel->maps.my_pid_map);
+		err = bpf_map_update_elem(map_fd, &zero, &my_pid, BPF_ANY);
+		if (!ASSERT_OK(err, "my_pid_map_update"))
+			goto err_out;
+		err = bpf_map_lookup_elem(map_fd, &zero, &res);
+	} else {
+		skel->bss->my_pid_var = my_pid;
+	}
+
+	err = test_legacy_printk__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto err_out;
+
+	usleep(1); /* trigger */
+
+	if (legacy) {
+		map_fd = bpf_map__fd(skel->maps.res_map);
+		err = bpf_map_lookup_elem(map_fd, &zero, &res);
+		if (!ASSERT_OK(err, "res_map_lookup"))
+			goto err_out;
+	} else {
+		res = skel->bss->res_var;
+	}
+
+	if (!ASSERT_GT(res, 0, "res")) {
+		err = -EINVAL;
+		goto err_out;
+	}
+
+err_out:
+	test_legacy_printk__destroy(skel);
+	return err;
+}
+
+void test_legacy_printk(void)
+{
+	/* legacy variant should work everywhere */
+	ASSERT_OK(execute_one_variant(true /* legacy */), "legacy_case");
+
+	/* execute modern variant, can fail the load on old kernels */
+	execute_one_variant(false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_get_fd_by_id_opts.c b/tools/testing/selftests/bpf/prog_tests/libbpf_get_fd_by_id_opts.c
new file mode 100644
index 000000000000..a3f238f51d05
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/libbpf_get_fd_by_id_opts.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include <test_progs.h>
+
+#include "test_libbpf_get_fd_by_id_opts.skel.h"
+
+void test_libbpf_get_fd_by_id_opts(void)
+{
+	struct test_libbpf_get_fd_by_id_opts *skel;
+	struct bpf_map_info info_m = {};
+	__u32 len = sizeof(info_m), value;
+	int ret, zero = 0, fd = -1;
+	LIBBPF_OPTS(bpf_get_fd_by_id_opts, fd_opts_rdonly,
+		.open_flags = BPF_F_RDONLY,
+	);
+
+	skel = test_libbpf_get_fd_by_id_opts__open_and_load();
+	if (!ASSERT_OK_PTR(skel,
+			   "test_libbpf_get_fd_by_id_opts__open_and_load"))
+		return;
+
+	ret = test_libbpf_get_fd_by_id_opts__attach(skel);
+	if (!ASSERT_OK(ret, "test_libbpf_get_fd_by_id_opts__attach"))
+		goto close_prog;
+
+	ret = bpf_map_get_info_by_fd(bpf_map__fd(skel->maps.data_input),
+				     &info_m, &len);
+	if (!ASSERT_OK(ret, "bpf_map_get_info_by_fd"))
+		goto close_prog;
+
+	fd = bpf_map_get_fd_by_id(info_m.id);
+	if (!ASSERT_LT(fd, 0, "bpf_map_get_fd_by_id"))
+		goto close_prog;
+
+	fd = bpf_map_get_fd_by_id_opts(info_m.id, NULL);
+	if (!ASSERT_LT(fd, 0, "bpf_map_get_fd_by_id_opts"))
+		goto close_prog;
+
+	fd = bpf_map_get_fd_by_id_opts(info_m.id, &fd_opts_rdonly);
+	if (!ASSERT_GE(fd, 0, "bpf_map_get_fd_by_id_opts"))
+		goto close_prog;
+
+	/* Map lookup should work with read-only fd. */
+	ret = bpf_map_lookup_elem(fd, &zero, &value);
+	if (!ASSERT_OK(ret, "bpf_map_lookup_elem"))
+		goto close_prog;
+
+	if (!ASSERT_EQ(value, 0, "map value mismatch"))
+		goto close_prog;
+
+	/* Map update should not work with read-only fd. */
+	ret = bpf_map_update_elem(fd, &zero, &len, BPF_ANY);
+	if (!ASSERT_LT(ret, 0, "bpf_map_update_elem"))
+		goto close_prog;
+
+	/* Map update should work with read-write fd. */
+	ret = bpf_map_update_elem(bpf_map__fd(skel->maps.data_input), &zero,
+				  &len, BPF_ANY);
+	if (!ASSERT_OK(ret, "bpf_map_update_elem"))
+		goto close_prog;
+
+	/* Prog get fd with opts set should not work (no kernel support). */
+	ret = bpf_prog_get_fd_by_id_opts(0, &fd_opts_rdonly);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_prog_get_fd_by_id_opts"))
+		goto close_prog;
+
+	/* Link get fd with opts set should not work (no kernel support). */
+	ret = bpf_link_get_fd_by_id_opts(0, &fd_opts_rdonly);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_link_get_fd_by_id_opts"))
+		goto close_prog;
+
+	/* BTF get fd with opts set should not work (no kernel support). */
+	ret = bpf_btf_get_fd_by_id_opts(0, &fd_opts_rdonly);
+	ASSERT_EQ(ret, -EINVAL, "bpf_btf_get_fd_by_id_opts");
+
+close_prog:
+	if (fd >= 0)
+		close(fd);
+
+	test_libbpf_get_fd_by_id_opts__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c
new file mode 100644
index 000000000000..4ed46ed58a7b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/libbpf_probes.c
@@ -0,0 +1,128 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+void test_libbpf_probe_prog_types(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_prog_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_prog_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_prog_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	if (!ASSERT_OK_PTR(t, "bpf_prog_type_enum"))
+		goto cleanup;
+
+	for (e = btf_enum(t), i = 0, n = btf_vlen(t); i < n; e++, i++) {
+		const char *prog_type_name = btf__str_by_offset(btf, e->name_off);
+		enum bpf_prog_type prog_type = (enum bpf_prog_type)e->val;
+		int res;
+
+		if (prog_type == BPF_PROG_TYPE_UNSPEC)
+			continue;
+		if (strcmp(prog_type_name, "__MAX_BPF_PROG_TYPE") == 0)
+			continue;
+
+		if (!test__start_subtest(prog_type_name))
+			continue;
+
+		res = libbpf_probe_bpf_prog_type(prog_type, NULL);
+		ASSERT_EQ(res, 1, prog_type_name);
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+void test_libbpf_probe_map_types(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_map_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_map_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_map_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	if (!ASSERT_OK_PTR(t, "bpf_map_type_enum"))
+		goto cleanup;
+
+	for (e = btf_enum(t), i = 0, n = btf_vlen(t); i < n; e++, i++) {
+		const char *map_type_name = btf__str_by_offset(btf, e->name_off);
+		enum bpf_map_type map_type = (enum bpf_map_type)e->val;
+		int res;
+
+		if (map_type == BPF_MAP_TYPE_UNSPEC)
+			continue;
+		if (strcmp(map_type_name, "__MAX_BPF_MAP_TYPE") == 0)
+			continue;
+
+		if (!test__start_subtest(map_type_name))
+			continue;
+
+		res = libbpf_probe_bpf_map_type(map_type, NULL);
+		ASSERT_EQ(res, 1, map_type_name);
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+void test_libbpf_probe_helpers(void)
+{
+#define CASE(prog, helper, supp) {			\
+	.prog_type_name = "BPF_PROG_TYPE_" # prog,	\
+	.helper_name = "bpf_" # helper,			\
+	.prog_type = BPF_PROG_TYPE_ ## prog,		\
+	.helper_id = BPF_FUNC_ ## helper,		\
+	.supported = supp,				\
+}
+	const struct case_def {
+		const char *prog_type_name;
+		const char *helper_name;
+		enum bpf_prog_type prog_type;
+		enum bpf_func_id helper_id;
+		bool supported;
+	} cases[] = {
+		CASE(KPROBE, unspec, false),
+		CASE(KPROBE, map_lookup_elem, true),
+		CASE(KPROBE, loop, true),
+
+		CASE(KPROBE, ktime_get_coarse_ns, false),
+		CASE(SOCKET_FILTER, ktime_get_coarse_ns, true),
+
+		CASE(KPROBE, sys_bpf, false),
+		CASE(SYSCALL, sys_bpf, true),
+	};
+	size_t case_cnt = ARRAY_SIZE(cases), i;
+	char buf[128];
+
+	for (i = 0; i < case_cnt; i++) {
+		const struct case_def *d = &cases[i];
+		int res;
+
+		snprintf(buf, sizeof(buf), "%s+%s", d->prog_type_name, d->helper_name);
+
+		if (!test__start_subtest(buf))
+			continue;
+
+		res = libbpf_probe_bpf_helper(d->prog_type, d->helper_id, NULL);
+		ASSERT_EQ(res, d->supported, buf);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_str.c b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c
new file mode 100644
index 000000000000..62ea855ec4d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <ctype.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+/*
+ * Utility function uppercasing an entire string.
+ */
+static void uppercase(char *s)
+{
+	for (; *s != '\0'; s++)
+		*s = toupper(*s);
+}
+
+/*
+ * Test case to check that all bpf_attach_type variants are covered by
+ * libbpf_bpf_attach_type_str.
+ */
+static void test_libbpf_bpf_attach_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_attach_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_attach_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_attach_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_attach_type attach_type = (enum bpf_attach_type)e->val;
+		const char *attach_type_name;
+		const char *attach_type_str;
+		char buf[256];
+
+		if (attach_type == __MAX_BPF_ATTACH_TYPE)
+			continue;
+
+		attach_type_name = btf__str_by_offset(btf, e->name_off);
+		attach_type_str = libbpf_bpf_attach_type_str(attach_type);
+		ASSERT_OK_PTR(attach_type_str, attach_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_%s", attach_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, attach_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_link_type variants are covered by
+ * libbpf_bpf_link_type_str.
+ */
+static void test_libbpf_bpf_link_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_link_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_link_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_link_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_link_type link_type = (enum bpf_link_type)e->val;
+		const char *link_type_name;
+		const char *link_type_str;
+		char buf[256];
+
+		if (link_type == __MAX_BPF_LINK_TYPE)
+			continue;
+
+		link_type_name = btf__str_by_offset(btf, e->name_off);
+		link_type_str = libbpf_bpf_link_type_str(link_type);
+		ASSERT_OK_PTR(link_type_str, link_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_LINK_TYPE_%s", link_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, link_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_map_type variants are covered by
+ * libbpf_bpf_map_type_str.
+ */
+static void test_libbpf_bpf_map_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_map_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_map_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_map_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_map_type map_type = (enum bpf_map_type)e->val;
+		const char *map_type_name;
+		const char *map_type_str;
+		char buf[256];
+
+		if (map_type == __MAX_BPF_MAP_TYPE)
+			continue;
+
+		map_type_name = btf__str_by_offset(btf, e->name_off);
+		map_type_str = libbpf_bpf_map_type_str(map_type);
+		ASSERT_OK_PTR(map_type_str, map_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_MAP_TYPE_%s", map_type_str);
+		uppercase(buf);
+
+		/* Special case for map_type_name BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED
+		 * where it and BPF_MAP_TYPE_CGROUP_STORAGE have the same enum value
+		 * (map_type). For this enum value, libbpf_bpf_map_type_str() picks
+		 * BPF_MAP_TYPE_CGROUP_STORAGE. The same for
+		 * BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED and
+		 * BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE.
+		 */
+		if (strcmp(map_type_name, "BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED") == 0)
+			continue;
+		if (strcmp(map_type_name, "BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED") == 0)
+			continue;
+
+		ASSERT_STREQ(buf, map_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_prog_type variants are covered by
+ * libbpf_bpf_prog_type_str.
+ */
+static void test_libbpf_bpf_prog_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_prog_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_prog_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_prog_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_prog_type prog_type = (enum bpf_prog_type)e->val;
+		const char *prog_type_name;
+		const char *prog_type_str;
+		char buf[256];
+
+		if (prog_type == __MAX_BPF_PROG_TYPE)
+			continue;
+
+		prog_type_name = btf__str_by_offset(btf, e->name_off);
+		prog_type_str = libbpf_bpf_prog_type_str(prog_type);
+		ASSERT_OK_PTR(prog_type_str, prog_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_PROG_TYPE_%s", prog_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, prog_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Run all libbpf str conversion tests.
+ */
+void test_libbpf_str(void)
+{
+	if (test__start_subtest("bpf_attach_type_str"))
+		test_libbpf_bpf_attach_type_str();
+
+	if (test__start_subtest("bpf_link_type_str"))
+		test_libbpf_bpf_link_type_str();
+
+	if (test__start_subtest("bpf_map_type_str"))
+		test_libbpf_bpf_map_type_str();
+
+	if (test__start_subtest("bpf_prog_type_str"))
+		test_libbpf_bpf_prog_type_str();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/link_pinning.c b/tools/testing/selftests/bpf/prog_tests/link_pinning.c
new file mode 100644
index 000000000000..6fc97c45f71e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/link_pinning.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <sys/stat.h>
+
+#include "test_link_pinning.skel.h"
+
+static int duration = 0;
+
+void test_link_pinning_subtest(struct bpf_program *prog,
+			       struct test_link_pinning__bss *bss)
+{
+	const char *link_pin_path = "/sys/fs/bpf/pinned_link_test";
+	struct stat statbuf = {};
+	struct bpf_link *link;
+	int err, i;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	bss->in = 1;
+	usleep(1);
+	CHECK(bss->out != 1, "res_check1", "exp %d, got %d\n", 1, bss->out);
+
+	/* pin link */
+	err = bpf_link__pin(link, link_pin_path);
+	if (CHECK(err, "link_pin", "err: %d\n", err))
+		goto cleanup;
+
+	CHECK(strcmp(link_pin_path, bpf_link__pin_path(link)), "pin_path1",
+	      "exp %s, got %s\n", link_pin_path, bpf_link__pin_path(link));
+
+	/* check that link was pinned */
+	err = stat(link_pin_path, &statbuf);
+	if (CHECK(err, "stat_link", "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	bss->in = 2;
+	usleep(1);
+	CHECK(bss->out != 2, "res_check2", "exp %d, got %d\n", 2, bss->out);
+
+	/* destroy link, pinned link should keep program attached */
+	bpf_link__destroy(link);
+	link = NULL;
+
+	bss->in = 3;
+	usleep(1);
+	CHECK(bss->out != 3, "res_check3", "exp %d, got %d\n", 3, bss->out);
+
+	/* re-open link from BPFFS */
+	link = bpf_link__open(link_pin_path);
+	if (!ASSERT_OK_PTR(link, "link_open"))
+		goto cleanup;
+
+	CHECK(strcmp(link_pin_path, bpf_link__pin_path(link)), "pin_path2",
+	      "exp %s, got %s\n", link_pin_path, bpf_link__pin_path(link));
+
+	/* unpin link from BPFFS, program still attached */
+	err = bpf_link__unpin(link);
+	if (CHECK(err, "link_unpin", "err: %d\n", err))
+		goto cleanup;
+
+	/* still active, as we have FD open now */
+	bss->in = 4;
+	usleep(1);
+	CHECK(bss->out != 4, "res_check4", "exp %d, got %d\n", 4, bss->out);
+
+	bpf_link__destroy(link);
+	link = NULL;
+
+	/* Validate it's finally detached.
+	 * Actual detachment might get delayed a bit, so there is no reliable
+	 * way to validate it immediately here, let's count up for long enough
+	 * and see if eventually output stops being updated
+	 */
+	for (i = 5; i < 10000; i++) {
+		bss->in = i;
+		usleep(1);
+		if (bss->out == i - 1)
+			break;
+	}
+	CHECK(i == 10000, "link_attached", "got to iteration #%d\n", i);
+
+cleanup:
+	bpf_link__destroy(link);
+}
+
+void test_link_pinning(void)
+{
+	struct test_link_pinning* skel;
+
+	skel = test_link_pinning__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	if (test__start_subtest("pin_raw_tp"))
+		test_link_pinning_subtest(skel->progs.raw_tp_prog, skel->bss);
+	if (test__start_subtest("pin_tp_btf"))
+		test_link_pinning_subtest(skel->progs.tp_btf_prog, skel->bss);
+
+	test_link_pinning__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_funcs.c b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c
new file mode 100644
index 000000000000..fa639b021f7e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/linked_funcs.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <sys/syscall.h>
+#include "linked_funcs.skel.h"
+
+void test_linked_funcs(void)
+{
+	int err;
+	struct linked_funcs *skel;
+
+	skel = linked_funcs__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	/* handler1 and handler2 are marked as SEC("?raw_tp/sys_enter") and
+	 * are set to not autoload by default
+	 */
+	bpf_program__set_autoload(skel->progs.handler1, true);
+	bpf_program__set_autoload(skel->progs.handler2, true);
+
+	skel->rodata->my_tid = sys_gettid();
+	skel->bss->syscall_id = SYS_getpgid;
+
+	err = linked_funcs__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = linked_funcs__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger */
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->output_val1, 2000 + 2000, "output_val1");
+	ASSERT_EQ(skel->bss->output_ctx1, SYS_getpgid, "output_ctx1");
+	ASSERT_EQ(skel->bss->output_weak1, 42, "output_weak1");
+
+	ASSERT_EQ(skel->bss->output_val2, 2 * 1000 + 2 * (2 * 1000), "output_val2");
+	ASSERT_EQ(skel->bss->output_ctx2, SYS_getpgid, "output_ctx2");
+	/* output_weak2 should never be updated */
+	ASSERT_EQ(skel->bss->output_weak2, 0, "output_weak2");
+
+cleanup:
+	linked_funcs__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_list.c b/tools/testing/selftests/bpf/prog_tests/linked_list.c
new file mode 100644
index 000000000000..14c5a7ef0e87
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/linked_list.c
@@ -0,0 +1,813 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <bpf/btf.h>
+#include <test_btf.h>
+#include <linux/btf.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "linked_list.skel.h"
+#include "linked_list_fail.skel.h"
+#include "linked_list_peek.skel.h"
+
+static char log_buf[1024 * 1024];
+
+static struct {
+	const char *prog_name;
+	const char *err_msg;
+} linked_list_fail_tests[] = {
+#define TEST(test, off) \
+	{ #test "_missing_lock_push_front", \
+	  "bpf_spin_lock at off=" #off " must be held for bpf_list_head" }, \
+	{ #test "_missing_lock_push_back", \
+	  "bpf_spin_lock at off=" #off " must be held for bpf_list_head" }, \
+	{ #test "_missing_lock_pop_front", \
+	  "bpf_spin_lock at off=" #off " must be held for bpf_list_head" }, \
+	{ #test "_missing_lock_pop_back", \
+	  "bpf_spin_lock at off=" #off " must be held for bpf_list_head" },
+	TEST(kptr, 40)
+	TEST(global, 16)
+	TEST(map, 0)
+	TEST(inner_map, 0)
+#undef TEST
+#define TEST(test, op) \
+	{ #test "_kptr_incorrect_lock_" #op, \
+	  "held lock and object are not in the same allocation\n" \
+	  "bpf_spin_lock at off=40 must be held for bpf_list_head" }, \
+	{ #test "_global_incorrect_lock_" #op, \
+	  "held lock and object are not in the same allocation\n" \
+	  "bpf_spin_lock at off=16 must be held for bpf_list_head" }, \
+	{ #test "_map_incorrect_lock_" #op, \
+	  "held lock and object are not in the same allocation\n" \
+	  "bpf_spin_lock at off=0 must be held for bpf_list_head" }, \
+	{ #test "_inner_map_incorrect_lock_" #op, \
+	  "held lock and object are not in the same allocation\n" \
+	  "bpf_spin_lock at off=0 must be held for bpf_list_head" },
+	TEST(kptr, push_front)
+	TEST(kptr, push_back)
+	TEST(kptr, pop_front)
+	TEST(kptr, pop_back)
+	TEST(global, push_front)
+	TEST(global, push_back)
+	TEST(global, pop_front)
+	TEST(global, pop_back)
+	TEST(map, push_front)
+	TEST(map, push_back)
+	TEST(map, pop_front)
+	TEST(map, pop_back)
+	TEST(inner_map, push_front)
+	TEST(inner_map, push_back)
+	TEST(inner_map, pop_front)
+	TEST(inner_map, pop_back)
+#undef TEST
+	{ "map_compat_kprobe", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "map_compat_kretprobe", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "map_compat_tp", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "map_compat_perf", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "map_compat_raw_tp", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "map_compat_raw_tp_w", "tracing progs cannot use bpf_{list_head,rb_root} yet" },
+	{ "obj_type_id_oor", "local type ID argument must be in range [0, U32_MAX]" },
+	{ "obj_new_no_composite", "bpf_obj_new/bpf_percpu_obj_new type ID argument must be of a struct" },
+	{ "obj_new_no_struct", "bpf_obj_new/bpf_percpu_obj_new type ID argument must be of a struct" },
+	{ "obj_drop_non_zero_off", "R1 must have zero offset when passed to release func" },
+	{ "new_null_ret", "R0 invalid mem access 'ptr_or_null_'" },
+	{ "obj_new_acq", "Unreleased reference id=" },
+	{ "use_after_drop", "invalid mem access 'scalar'" },
+	{ "ptr_walk_scalar", "type=rdonly_untrusted_mem expected=percpu_ptr_" },
+	{ "direct_read_lock", "direct access to bpf_spin_lock is disallowed" },
+	{ "direct_write_lock", "direct access to bpf_spin_lock is disallowed" },
+	{ "direct_read_head", "direct access to bpf_list_head is disallowed" },
+	{ "direct_write_head", "direct access to bpf_list_head is disallowed" },
+	{ "direct_read_node", "direct access to bpf_list_node is disallowed" },
+	{ "direct_write_node", "direct access to bpf_list_node is disallowed" },
+	{ "use_after_unlock_push_front", "invalid mem access 'scalar'" },
+	{ "use_after_unlock_push_back", "invalid mem access 'scalar'" },
+	{ "double_push_front", "arg#1 expected pointer to allocated object" },
+	{ "double_push_back", "arg#1 expected pointer to allocated object" },
+	{ "no_node_value_type", "bpf_list_node not found at offset=0" },
+	{ "incorrect_value_type",
+	  "operation on bpf_list_head expects arg#1 bpf_list_node at offset=48 in struct foo, "
+	  "but arg is at offset=0 in struct bar" },
+	{ "incorrect_node_var_off", "variable ptr_ access var_off=(0x0; 0xffffffff) disallowed" },
+	{ "incorrect_node_off1", "bpf_list_node not found at offset=49" },
+	{ "incorrect_node_off2", "arg#1 offset=0, but expected bpf_list_node at offset=48 in struct foo" },
+	{ "no_head_type", "bpf_list_head not found at offset=0" },
+	{ "incorrect_head_var_off1", "R1 doesn't have constant offset" },
+	{ "incorrect_head_var_off2", "variable ptr_ access var_off=(0x0; 0xffffffff) disallowed" },
+	{ "incorrect_head_off1", "bpf_list_head not found at offset=25" },
+	{ "incorrect_head_off2", "bpf_list_head not found at offset=1" },
+	{ "pop_front_off", "off 48 doesn't point to 'struct bpf_spin_lock' that is at 40" },
+	{ "pop_back_off", "off 48 doesn't point to 'struct bpf_spin_lock' that is at 40" },
+};
+
+static void test_linked_list_fail_prog(const char *prog_name, const char *err_msg)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf,
+						.kernel_log_size = sizeof(log_buf),
+						.kernel_log_level = 1);
+	struct linked_list_fail *skel;
+	struct bpf_program *prog;
+	int ret;
+
+	skel = linked_list_fail__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "linked_list_fail__open_opts"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto end;
+
+	bpf_program__set_autoload(prog, true);
+
+	ret = linked_list_fail__load(skel);
+	if (!ASSERT_ERR(ret, "linked_list_fail__load must fail"))
+		goto end;
+
+	if (!ASSERT_OK_PTR(strstr(log_buf, err_msg), "expected error message")) {
+		fprintf(stderr, "Expected: %s\n", err_msg);
+		fprintf(stderr, "Verifier: %s\n", log_buf);
+	}
+
+end:
+	linked_list_fail__destroy(skel);
+}
+
+static void clear_fields(struct bpf_map *map)
+{
+	char buf[24];
+	int key = 0;
+
+	memset(buf, 0xff, sizeof(buf));
+	ASSERT_OK(bpf_map__update_elem(map, &key, sizeof(key), buf, sizeof(buf), 0), "check_and_free_fields");
+}
+
+enum {
+	TEST_ALL,
+	PUSH_POP,
+	PUSH_POP_MULT,
+	LIST_IN_LIST,
+};
+
+static void test_linked_list_success(int mode, bool leave_in_map)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	struct linked_list *skel;
+	int ret;
+
+	skel = linked_list__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "linked_list__open_and_load"))
+		return;
+
+	if (mode == LIST_IN_LIST)
+		goto lil;
+	if (mode == PUSH_POP_MULT)
+		goto ppm;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_push_pop), &opts);
+	ASSERT_OK(ret, "map_list_push_pop");
+	ASSERT_OK(opts.retval, "map_list_push_pop retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.array_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.inner_map_list_push_pop), &opts);
+	ASSERT_OK(ret, "inner_map_list_push_pop");
+	ASSERT_OK(opts.retval, "inner_map_list_push_pop retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.inner_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop), &opts);
+	ASSERT_OK(ret, "global_list_push_pop");
+	ASSERT_OK(opts.retval, "global_list_push_pop retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.bss_A);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop_nested), &opts);
+	ASSERT_OK(ret, "global_list_push_pop_nested");
+	ASSERT_OK(opts.retval, "global_list_push_pop_nested retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.bss_A);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_array_push_pop), &opts);
+	ASSERT_OK(ret, "global_list_array_push_pop");
+	ASSERT_OK(opts.retval, "global_list_array_push_pop retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.bss_A);
+
+	if (mode == PUSH_POP)
+		goto end;
+
+ppm:
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_push_pop_multiple), &opts);
+	ASSERT_OK(ret, "map_list_push_pop_multiple");
+	ASSERT_OK(opts.retval, "map_list_push_pop_multiple retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.array_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.inner_map_list_push_pop_multiple), &opts);
+	ASSERT_OK(ret, "inner_map_list_push_pop_multiple");
+	ASSERT_OK(opts.retval, "inner_map_list_push_pop_multiple retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.inner_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_push_pop_multiple), &opts);
+	ASSERT_OK(ret, "global_list_push_pop_multiple");
+	ASSERT_OK(opts.retval, "global_list_push_pop_multiple retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.bss_A);
+
+	if (mode == PUSH_POP_MULT)
+		goto end;
+
+lil:
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.map_list_in_list), &opts);
+	ASSERT_OK(ret, "map_list_in_list");
+	ASSERT_OK(opts.retval, "map_list_in_list retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.array_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.inner_map_list_in_list), &opts);
+	ASSERT_OK(ret, "inner_map_list_in_list");
+	ASSERT_OK(opts.retval, "inner_map_list_in_list retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.inner_map);
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.global_list_in_list), &opts);
+	ASSERT_OK(ret, "global_list_in_list");
+	ASSERT_OK(opts.retval, "global_list_in_list retval");
+	if (!leave_in_map)
+		clear_fields(skel->maps.bss_A);
+end:
+	linked_list__destroy(skel);
+}
+
+#define SPIN_LOCK 2
+#define LIST_HEAD 3
+#define LIST_NODE 4
+
+static struct btf *init_btf(void)
+{
+	int id, lid, hid, nid;
+	struct btf *btf;
+
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "btf__new_empty"))
+		return NULL;
+	id = btf__add_int(btf, "int", 4, BTF_INT_SIGNED);
+	if (!ASSERT_EQ(id, 1, "btf__add_int"))
+		goto end;
+	lid = btf__add_struct(btf, "bpf_spin_lock", 4);
+	if (!ASSERT_EQ(lid, SPIN_LOCK, "btf__add_struct bpf_spin_lock"))
+		goto end;
+	hid = btf__add_struct(btf, "bpf_list_head", 16);
+	if (!ASSERT_EQ(hid, LIST_HEAD, "btf__add_struct bpf_list_head"))
+		goto end;
+	nid = btf__add_struct(btf, "bpf_list_node", 24);
+	if (!ASSERT_EQ(nid, LIST_NODE, "btf__add_struct bpf_list_node"))
+		goto end;
+	return btf;
+end:
+	btf__free(btf);
+	return NULL;
+}
+
+static void list_and_rb_node_same_struct(bool refcount_field)
+{
+	int bpf_rb_node_btf_id, bpf_refcount_btf_id = 0, foo_btf_id;
+	struct btf *btf;
+	int id, err;
+
+	btf = init_btf();
+	if (!ASSERT_OK_PTR(btf, "init_btf"))
+		return;
+
+	bpf_rb_node_btf_id = btf__add_struct(btf, "bpf_rb_node", 32);
+	if (!ASSERT_GT(bpf_rb_node_btf_id, 0, "btf__add_struct bpf_rb_node"))
+		return;
+
+	if (refcount_field) {
+		bpf_refcount_btf_id = btf__add_struct(btf, "bpf_refcount", 4);
+		if (!ASSERT_GT(bpf_refcount_btf_id, 0, "btf__add_struct bpf_refcount"))
+			return;
+	}
+
+	id = btf__add_struct(btf, "bar", refcount_field ? 60 : 56);
+	if (!ASSERT_GT(id, 0, "btf__add_struct bar"))
+		return;
+	err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+	if (!ASSERT_OK(err, "btf__add_field bar::a"))
+		return;
+	err = btf__add_field(btf, "c", bpf_rb_node_btf_id, 192, 0);
+	if (!ASSERT_OK(err, "btf__add_field bar::c"))
+		return;
+	if (refcount_field) {
+		err = btf__add_field(btf, "ref", bpf_refcount_btf_id, 448, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::ref"))
+			return;
+	}
+
+	foo_btf_id = btf__add_struct(btf, "foo", 20);
+	if (!ASSERT_GT(foo_btf_id, 0, "btf__add_struct foo"))
+		return;
+	err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+	if (!ASSERT_OK(err, "btf__add_field foo::a"))
+		return;
+	err = btf__add_field(btf, "b", SPIN_LOCK, 128, 0);
+	if (!ASSERT_OK(err, "btf__add_field foo::b"))
+		return;
+	id = btf__add_decl_tag(btf, "contains:bar:a", foo_btf_id, 0);
+	if (!ASSERT_GT(id, 0, "btf__add_decl_tag contains:bar:a"))
+		return;
+
+	err = btf__load_into_kernel(btf);
+	ASSERT_EQ(err, refcount_field ? 0 : -EINVAL, "check btf");
+	btf__free(btf);
+}
+
+static void test_btf(void)
+{
+	struct btf *btf = NULL;
+	int id, err;
+
+	while (test__start_subtest("btf: too many locks")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 24);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_struct foo::a"))
+			break;
+		err = btf__add_field(btf, "b", SPIN_LOCK, 32, 0);
+		if (!ASSERT_OK(err, "btf__add_struct foo::a"))
+			break;
+		err = btf__add_field(btf, "c", LIST_HEAD, 64, 0);
+		if (!ASSERT_OK(err, "btf__add_struct foo::a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -E2BIG, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: missing lock")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 16);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_struct foo::a"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:baz:a", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:baz:a"))
+			break;
+		id = btf__add_struct(btf, "baz", 16);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct baz"))
+			break;
+		err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field baz::a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -EINVAL, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: bad offset")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 36);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:foo:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:foo:b"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -EEXIST, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: missing contains:")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 24);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_HEAD, 64, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -EINVAL, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: missing struct")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 24);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_HEAD, 64, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:bar", 5, 1);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:bar"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -ENOENT, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: missing node")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 24);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_HEAD, 64, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:foo:c", 5, 1);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:foo:c"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		btf__free(btf);
+		ASSERT_EQ(err, -ENOENT, "check btf");
+		break;
+	}
+
+	while (test__start_subtest("btf: node incorrect type")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 20);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", SPIN_LOCK, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:a", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:a"))
+			break;
+		id = btf__add_struct(btf, "bar", 4);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", SPIN_LOCK, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -EINVAL, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: multiple bpf_list_node with name b")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 52);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 256, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::c"))
+			break;
+		err = btf__add_field(btf, "d", SPIN_LOCK, 384, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::d"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:foo:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:foo:b"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -EINVAL, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning | owned AA cycle")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 44);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:foo:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:foo:b"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -ELOOP, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning | owned ABA cycle")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 44);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:b"))
+			break;
+		id = btf__add_struct(btf, "bar", 44);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:foo:b", 7, 0);
+		if (!ASSERT_EQ(id, 8, "btf__add_decl_tag contains:foo:b"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -ELOOP, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning -> owned")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 28);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", SPIN_LOCK, 192, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:a", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:a"))
+			break;
+		id = btf__add_struct(btf, "bar", 24);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, 0, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning -> owning | owned -> owned")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 28);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", SPIN_LOCK, 192, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:b"))
+			break;
+		id = btf__add_struct(btf, "bar", 44);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:baz:a", 7, 0);
+		if (!ASSERT_EQ(id, 8, "btf__add_decl_tag contains:baz:a"))
+			break;
+		id = btf__add_struct(btf, "baz", 24);
+		if (!ASSERT_EQ(id, 9, "btf__add_struct baz"))
+			break;
+		err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field baz:a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, 0, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning | owned -> owning | owned -> owned")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 44);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:b"))
+			break;
+		id = btf__add_struct(btf, "bar", 44);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar:a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar:b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar:c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:baz:a", 7, 0);
+		if (!ASSERT_EQ(id, 8, "btf__add_decl_tag contains:baz:a"))
+			break;
+		id = btf__add_struct(btf, "baz", 24);
+		if (!ASSERT_EQ(id, 9, "btf__add_struct baz"))
+			break;
+		err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field baz:a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -ELOOP, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: owning -> owning | owned -> owning | owned -> owned")) {
+		btf = init_btf();
+		if (!ASSERT_OK_PTR(btf, "init_btf"))
+			break;
+		id = btf__add_struct(btf, "foo", 20);
+		if (!ASSERT_EQ(id, 5, "btf__add_struct foo"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::a"))
+			break;
+		err = btf__add_field(btf, "b", SPIN_LOCK, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field foo::b"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bar:b", 5, 0);
+		if (!ASSERT_EQ(id, 6, "btf__add_decl_tag contains:bar:b"))
+			break;
+		id = btf__add_struct(btf, "bar", 44);
+		if (!ASSERT_EQ(id, 7, "btf__add_struct bar"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:baz:b", 7, 0);
+		if (!ASSERT_EQ(id, 8, "btf__add_decl_tag"))
+			break;
+		id = btf__add_struct(btf, "baz", 44);
+		if (!ASSERT_EQ(id, 9, "btf__add_struct baz"))
+			break;
+		err = btf__add_field(btf, "a", LIST_HEAD, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::a"))
+			break;
+		err = btf__add_field(btf, "b", LIST_NODE, 128, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::b"))
+			break;
+		err = btf__add_field(btf, "c", SPIN_LOCK, 320, 0);
+		if (!ASSERT_OK(err, "btf__add_field bar::c"))
+			break;
+		id = btf__add_decl_tag(btf, "contains:bam:a", 9, 0);
+		if (!ASSERT_EQ(id, 10, "btf__add_decl_tag contains:bam:a"))
+			break;
+		id = btf__add_struct(btf, "bam", 24);
+		if (!ASSERT_EQ(id, 11, "btf__add_struct bam"))
+			break;
+		err = btf__add_field(btf, "a", LIST_NODE, 0, 0);
+		if (!ASSERT_OK(err, "btf__add_field bam::a"))
+			break;
+
+		err = btf__load_into_kernel(btf);
+		ASSERT_EQ(err, -ELOOP, "check btf");
+		btf__free(btf);
+		break;
+	}
+
+	while (test__start_subtest("btf: list_node and rb_node in same struct")) {
+		list_and_rb_node_same_struct(true);
+		break;
+	}
+
+	while (test__start_subtest("btf: list_node and rb_node in same struct, no bpf_refcount")) {
+		list_and_rb_node_same_struct(false);
+		break;
+	}
+}
+
+void test_linked_list(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(linked_list_fail_tests); i++) {
+		if (!test__start_subtest(linked_list_fail_tests[i].prog_name))
+			continue;
+		test_linked_list_fail_prog(linked_list_fail_tests[i].prog_name,
+					   linked_list_fail_tests[i].err_msg);
+	}
+	test_btf();
+	test_linked_list_success(PUSH_POP, false);
+	test_linked_list_success(PUSH_POP, true);
+	test_linked_list_success(PUSH_POP_MULT, false);
+	test_linked_list_success(PUSH_POP_MULT, true);
+	test_linked_list_success(LIST_IN_LIST, false);
+	test_linked_list_success(LIST_IN_LIST, true);
+	test_linked_list_success(TEST_ALL, false);
+}
+
+void test_linked_list_peek(void)
+{
+	RUN_TESTS(linked_list_peek);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_maps.c b/tools/testing/selftests/bpf/prog_tests/linked_maps.c
new file mode 100644
index 000000000000..85dcaaaf2775
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/linked_maps.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <sys/syscall.h>
+#include "linked_maps.skel.h"
+
+void test_linked_maps(void)
+{
+	int err;
+	struct linked_maps *skel;
+
+	skel = linked_maps__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	err = linked_maps__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger */
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->output_first1, 2000, "output_first1");
+	ASSERT_EQ(skel->bss->output_second1, 2, "output_second1");
+	ASSERT_EQ(skel->bss->output_weak1, 2, "output_weak1");
+
+cleanup:
+	linked_maps__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/linked_vars.c b/tools/testing/selftests/bpf/prog_tests/linked_vars.c
new file mode 100644
index 000000000000..267166abe4c1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/linked_vars.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <sys/syscall.h>
+#include "linked_vars.skel.h"
+
+void test_linked_vars(void)
+{
+	int err;
+	struct linked_vars *skel;
+
+	skel = linked_vars__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->input_bss1 = 1000;
+	skel->bss->input_bss2 = 2000;
+	skel->bss->input_bss_weak = 3000;
+
+	err = linked_vars__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = linked_vars__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger */
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->output_bss1, 1000 + 2000 + 3000, "output_bss1");
+	ASSERT_EQ(skel->bss->output_bss2, 1000 + 2000 + 3000, "output_bss2");
+	/* 10 comes from "winner" input_data_weak in first obj file */
+	ASSERT_EQ(skel->bss->output_data1, 1 + 2 + 10, "output_bss1");
+	ASSERT_EQ(skel->bss->output_data2, 1 + 2 + 10, "output_bss2");
+	/* 100 comes from "winner" input_rodata_weak in first obj file */
+	ASSERT_EQ(skel->bss->output_rodata1, 11 + 22 + 100, "output_weak1");
+	ASSERT_EQ(skel->bss->output_rodata2, 11 + 22 + 100, "output_weak2");
+
+cleanup:
+	linked_vars__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c b/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c
new file mode 100644
index 000000000000..72aa5376c30e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/livepatch_trampoline.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "testing_helpers.h"
+#include "livepatch_trampoline.skel.h"
+
+static int load_livepatch(void)
+{
+	char path[4096];
+
+	/* CI will set KBUILD_OUTPUT */
+	snprintf(path, sizeof(path), "%s/samples/livepatch/livepatch-sample.ko",
+		 getenv("KBUILD_OUTPUT") ? : "../../../..");
+
+	return load_module(path, env_verbosity > VERBOSE_NONE);
+}
+
+static void unload_livepatch(void)
+{
+	/* Disable the livepatch before unloading the module */
+	system("echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled");
+
+	unload_module("livepatch_sample", env_verbosity > VERBOSE_NONE);
+}
+
+static void read_proc_cmdline(void)
+{
+	char buf[4096];
+	int fd, ret;
+
+	fd = open("/proc/cmdline", O_RDONLY);
+	if (!ASSERT_OK_FD(fd, "open /proc/cmdline"))
+		return;
+
+	ret = read(fd, buf, sizeof(buf));
+	if (!ASSERT_GT(ret, 0, "read /proc/cmdline"))
+		goto out;
+
+	ASSERT_OK(strncmp(buf, "this has been live patched", 26), "strncmp");
+
+out:
+	close(fd);
+}
+
+static void __test_livepatch_trampoline(bool fexit_first)
+{
+	struct livepatch_trampoline *skel = NULL;
+	int err;
+
+	skel = livepatch_trampoline__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto out;
+
+	skel->bss->my_pid = getpid();
+
+	if (!fexit_first) {
+		/* fentry program is loaded first by default */
+		err = livepatch_trampoline__attach(skel);
+		if (!ASSERT_OK(err, "skel_attach"))
+			goto out;
+	} else {
+		/* Manually load fexit program first. */
+		skel->links.fexit_cmdline = bpf_program__attach(skel->progs.fexit_cmdline);
+		if (!ASSERT_OK_PTR(skel->links.fexit_cmdline, "attach_fexit"))
+			goto out;
+
+		skel->links.fentry_cmdline = bpf_program__attach(skel->progs.fentry_cmdline);
+		if (!ASSERT_OK_PTR(skel->links.fentry_cmdline, "attach_fentry"))
+			goto out;
+	}
+
+	read_proc_cmdline();
+
+	ASSERT_EQ(skel->bss->fentry_hit, 1, "fentry_hit");
+	ASSERT_EQ(skel->bss->fexit_hit, 1, "fexit_hit");
+out:
+	livepatch_trampoline__destroy(skel);
+}
+
+void test_livepatch_trampoline(void)
+{
+	int retry_cnt = 0;
+
+retry:
+	if (load_livepatch()) {
+		if (retry_cnt) {
+			ASSERT_OK(1, "load_livepatch");
+			goto out;
+		}
+		/*
+		 * Something else (previous run of the same test?) loaded
+		 * the KLP module. Unload the KLP module and retry.
+		 */
+		unload_livepatch();
+		retry_cnt++;
+		goto retry;
+	}
+
+	if (test__start_subtest("fentry_first"))
+		__test_livepatch_trampoline(false);
+
+	if (test__start_subtest("fexit_first"))
+		__test_livepatch_trampoline(true);
+out:
+	unload_livepatch();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/load_bytes_relative.c b/tools/testing/selftests/bpf/prog_tests/load_bytes_relative.c
new file mode 100644
index 000000000000..581c0eb0a0a1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/load_bytes_relative.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_load_bytes_relative(void)
+{
+	int server_fd, cgroup_fd, prog_fd, map_fd, client_fd;
+	int err;
+	struct bpf_object *obj;
+	struct bpf_program *prog;
+	struct bpf_map *test_result;
+	__u32 duration = 0;
+
+	__u32 map_key = 0;
+	__u32 map_value = 0;
+
+	cgroup_fd = test__join_cgroup("/load_bytes_relative");
+	if (CHECK_FAIL(cgroup_fd < 0))
+		return;
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (CHECK_FAIL(server_fd < 0))
+		goto close_cgroup_fd;
+
+	err = bpf_prog_test_load("./load_bytes_relative.bpf.o", BPF_PROG_TYPE_CGROUP_SKB,
+				 &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		goto close_server_fd;
+
+	test_result = bpf_object__find_map_by_name(obj, "test_result");
+	if (CHECK_FAIL(!test_result))
+		goto close_bpf_object;
+
+	map_fd = bpf_map__fd(test_result);
+	if (map_fd < 0)
+		goto close_bpf_object;
+
+	prog = bpf_object__find_program_by_name(obj, "load_bytes_relative");
+	if (CHECK_FAIL(!prog))
+		goto close_bpf_object;
+
+	err = bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_INET_EGRESS,
+			      BPF_F_ALLOW_MULTI);
+	if (CHECK_FAIL(err))
+		goto close_bpf_object;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (CHECK_FAIL(client_fd < 0))
+		goto close_bpf_object;
+	close(client_fd);
+
+	err = bpf_map_lookup_elem(map_fd, &map_key, &map_value);
+	if (CHECK_FAIL(err))
+		goto close_bpf_object;
+
+	CHECK(map_value != 1, "bpf", "bpf program returned failure");
+
+close_bpf_object:
+	bpf_object__close(obj);
+
+close_server_fd:
+	close(server_fd);
+
+close_cgroup_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/local_kptr_stash.c b/tools/testing/selftests/bpf/prog_tests/local_kptr_stash.c
new file mode 100644
index 000000000000..827e713f6cf1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/local_kptr_stash.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "local_kptr_stash.skel.h"
+#include "local_kptr_stash_fail.skel.h"
+static void test_local_kptr_stash_simple(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct local_kptr_stash *skel;
+	int ret;
+
+	skel = local_kptr_stash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_rb_nodes), &opts);
+	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
+	ASSERT_OK(opts.retval, "local_kptr_stash_add_nodes retval");
+
+	local_kptr_stash__destroy(skel);
+}
+
+static void test_local_kptr_stash_plain(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct local_kptr_stash *skel;
+	int ret;
+
+	skel = local_kptr_stash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_plain), &opts);
+	ASSERT_OK(ret, "local_kptr_stash_add_plain run");
+	ASSERT_OK(opts.retval, "local_kptr_stash_add_plain retval");
+
+	local_kptr_stash__destroy(skel);
+}
+
+static void test_local_kptr_stash_local_with_root(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct local_kptr_stash *skel;
+	int ret;
+
+	skel = local_kptr_stash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_local_with_root), &opts);
+	ASSERT_OK(ret, "local_kptr_stash_add_local_with_root run");
+	ASSERT_OK(opts.retval, "local_kptr_stash_add_local_with_root retval");
+
+	local_kptr_stash__destroy(skel);
+}
+
+static void test_local_kptr_stash_unstash(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct local_kptr_stash *skel;
+	int ret;
+
+	skel = local_kptr_stash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_rb_nodes), &opts);
+	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
+	ASSERT_OK(opts.retval, "local_kptr_stash_add_nodes retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.unstash_rb_node), &opts);
+	ASSERT_OK(ret, "local_kptr_stash_add_nodes run");
+	ASSERT_EQ(opts.retval, 42, "local_kptr_stash_add_nodes retval");
+
+	local_kptr_stash__destroy(skel);
+}
+
+static void test_refcount_acquire_without_unstash(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct local_kptr_stash *skel;
+	int ret;
+
+	skel = local_kptr_stash__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "local_kptr_stash__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.refcount_acquire_without_unstash),
+				     &opts);
+	ASSERT_OK(ret, "refcount_acquire_without_unstash run");
+	ASSERT_EQ(opts.retval, 2, "refcount_acquire_without_unstash retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.stash_refcounted_node), &opts);
+	ASSERT_OK(ret, "stash_refcounted_node run");
+	ASSERT_OK(opts.retval, "stash_refcounted_node retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.refcount_acquire_without_unstash),
+				     &opts);
+	ASSERT_OK(ret, "refcount_acquire_without_unstash (2) run");
+	ASSERT_EQ(opts.retval, 42, "refcount_acquire_without_unstash (2) retval");
+
+	local_kptr_stash__destroy(skel);
+}
+
+static void test_local_kptr_stash_fail(void)
+{
+	RUN_TESTS(local_kptr_stash_fail);
+}
+
+void test_local_kptr_stash(void)
+{
+	if (test__start_subtest("local_kptr_stash_simple"))
+		test_local_kptr_stash_simple();
+	if (test__start_subtest("local_kptr_stash_plain"))
+		test_local_kptr_stash_plain();
+	if (test__start_subtest("local_kptr_stash_local_with_root"))
+		test_local_kptr_stash_local_with_root();
+	if (test__start_subtest("local_kptr_stash_unstash"))
+		test_local_kptr_stash_unstash();
+	if (test__start_subtest("refcount_acquire_without_unstash"))
+		test_refcount_acquire_without_unstash();
+	if (test__start_subtest("local_kptr_stash_fail"))
+		test_local_kptr_stash_fail();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/log_buf.c b/tools/testing/selftests/bpf/prog_tests/log_buf.c
new file mode 100644
index 000000000000..d6f14a232002
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/log_buf.c
@@ -0,0 +1,278 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "test_log_buf.skel.h"
+#include "bpf_util.h"
+
+#if !defined(__clang__)
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+
+static size_t libbpf_log_pos;
+static char libbpf_log_buf[1024 * 1024];
+static bool libbpf_log_error;
+
+static int libbpf_print_cb(enum libbpf_print_level level, const char *fmt, va_list args)
+{
+	int emitted_cnt;
+	size_t left_cnt;
+
+	left_cnt = sizeof(libbpf_log_buf) - libbpf_log_pos;
+	emitted_cnt = vsnprintf(libbpf_log_buf + libbpf_log_pos, left_cnt, fmt, args);
+
+	if (emitted_cnt < 0 || emitted_cnt + 1 > left_cnt) {
+		libbpf_log_error = true;
+		return 0;
+	}
+
+	libbpf_log_pos += emitted_cnt;
+	return 0;
+}
+
+static void obj_load_log_buf(void)
+{
+	libbpf_print_fn_t old_print_cb = libbpf_set_print(libbpf_print_cb);
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	const size_t log_buf_sz = 1024 * 1024;
+	struct test_log_buf* skel;
+	char *obj_log_buf, *good_log_buf, *bad_log_buf;
+	int err;
+
+	obj_log_buf = malloc(3 * log_buf_sz);
+	if (!ASSERT_OK_PTR(obj_log_buf, "obj_log_buf"))
+		return;
+
+	good_log_buf = obj_log_buf + log_buf_sz;
+	bad_log_buf = obj_log_buf + 2 * log_buf_sz;
+	obj_log_buf[0] = good_log_buf[0] = bad_log_buf[0] = '\0';
+
+	opts.kernel_log_buf = obj_log_buf;
+	opts.kernel_log_size = log_buf_sz;
+	opts.kernel_log_level = 4; /* for BTF this will turn into 1 */
+
+	/* In the first round every prog has its own log_buf, so libbpf logs
+	 * don't have program failure logs
+	 */
+	skel = test_log_buf__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	/* set very verbose level for good_prog so we always get detailed logs */
+	bpf_program__set_log_buf(skel->progs.good_prog, good_log_buf, log_buf_sz);
+	bpf_program__set_log_level(skel->progs.good_prog, 2);
+
+	bpf_program__set_log_buf(skel->progs.bad_prog, bad_log_buf, log_buf_sz);
+	/* log_level 0 with custom log_buf means that verbose logs are not
+	 * requested if program load is successful, but libbpf should retry
+	 * with log_level 1 on error and put program's verbose load log into
+	 * custom log_buf
+	 */
+	bpf_program__set_log_level(skel->progs.bad_prog, 0);
+
+	err = test_log_buf__load(skel);
+	if (!ASSERT_ERR(err, "unexpected_load_success"))
+		goto cleanup;
+
+	ASSERT_FALSE(libbpf_log_error, "libbpf_log_error");
+
+	/* there should be no prog loading log because we specified per-prog log buf */
+	ASSERT_NULL(strstr(libbpf_log_buf, "-- BEGIN PROG LOAD LOG --"), "unexp_libbpf_log");
+	ASSERT_OK_PTR(strstr(libbpf_log_buf, "prog 'bad_prog': BPF program load failed"),
+		      "libbpf_log_not_empty");
+	ASSERT_OK_PTR(strstr(obj_log_buf, "DATASEC license"), "obj_log_not_empty");
+	ASSERT_OK_PTR(strstr(good_log_buf, "0: R1=ctx() R10=fp0"),
+		      "good_log_verbose");
+	ASSERT_OK_PTR(strstr(bad_log_buf, "invalid access to map value, value_size=16 off=16000 size=4"),
+		      "bad_log_not_empty");
+
+	if (env.verbosity > VERBOSE_NONE) {
+		printf("LIBBPF LOG:   \n=================\n%s=================\n", libbpf_log_buf);
+		printf("OBJ LOG:      \n=================\n%s=================\n", obj_log_buf);
+		printf("GOOD_PROG LOG:\n=================\n%s=================\n", good_log_buf);
+		printf("BAD_PROG  LOG:\n=================\n%s=================\n", bad_log_buf);
+	}
+
+	/* reset everything */
+	test_log_buf__destroy(skel);
+	obj_log_buf[0] = good_log_buf[0] = bad_log_buf[0] = '\0';
+	libbpf_log_buf[0] = '\0';
+	libbpf_log_pos = 0;
+	libbpf_log_error = false;
+
+	/* In the second round we let bad_prog's failure be logged through print callback */
+	opts.kernel_log_buf = NULL; /* let everything through into print callback */
+	opts.kernel_log_size = 0;
+	opts.kernel_log_level = 1;
+
+	skel = test_log_buf__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	/* set normal verbose level for good_prog to check log_level is taken into account */
+	bpf_program__set_log_buf(skel->progs.good_prog, good_log_buf, log_buf_sz);
+	bpf_program__set_log_level(skel->progs.good_prog, 1);
+
+	err = test_log_buf__load(skel);
+	if (!ASSERT_ERR(err, "unexpected_load_success"))
+		goto cleanup;
+
+	ASSERT_FALSE(libbpf_log_error, "libbpf_log_error");
+
+	/* this time prog loading error should be logged through print callback */
+	ASSERT_OK_PTR(strstr(libbpf_log_buf, "libbpf: prog 'bad_prog': -- BEGIN PROG LOAD LOG --"),
+		      "libbpf_log_correct");
+	ASSERT_STREQ(obj_log_buf, "", "obj_log__empty");
+	ASSERT_STREQ(good_log_buf, "processed 4 insns (limit 1000000) max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0\n",
+		     "good_log_ok");
+	ASSERT_STREQ(bad_log_buf, "", "bad_log_empty");
+
+	if (env.verbosity > VERBOSE_NONE) {
+		printf("LIBBPF LOG:   \n=================\n%s=================\n", libbpf_log_buf);
+		printf("OBJ LOG:      \n=================\n%s=================\n", obj_log_buf);
+		printf("GOOD_PROG LOG:\n=================\n%s=================\n", good_log_buf);
+		printf("BAD_PROG  LOG:\n=================\n%s=================\n", bad_log_buf);
+	}
+
+cleanup:
+	free(obj_log_buf);
+	test_log_buf__destroy(skel);
+	libbpf_set_print(old_print_cb);
+}
+
+static void bpf_prog_load_log_buf(void)
+{
+	const struct bpf_insn good_prog_insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	const size_t good_prog_insn_cnt = ARRAY_SIZE(good_prog_insns);
+	const struct bpf_insn bad_prog_insns[] = {
+		BPF_EXIT_INSN(),
+	};
+	size_t bad_prog_insn_cnt = ARRAY_SIZE(bad_prog_insns);
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	const size_t log_buf_sz = 1024 * 1024;
+	char *log_buf;
+	int fd = -1;
+
+	log_buf = malloc(log_buf_sz);
+	if (!ASSERT_OK_PTR(log_buf, "log_buf_alloc"))
+		return;
+	opts.log_buf = log_buf;
+	opts.log_size = log_buf_sz;
+
+	/* with log_level == 0 log_buf should stay empty for good prog */
+	log_buf[0] = '\0';
+	opts.log_level = 0;
+	fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, "good_prog", "GPL",
+			   good_prog_insns, good_prog_insn_cnt, &opts);
+	ASSERT_STREQ(log_buf, "", "good_log_0");
+	ASSERT_GE(fd, 0, "good_fd1");
+	if (fd >= 0)
+		close(fd);
+
+	/* log_level == 2 should always fill log_buf, even for good prog */
+	log_buf[0] = '\0';
+	opts.log_level = 2;
+	fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, "good_prog", "GPL",
+			   good_prog_insns, good_prog_insn_cnt, &opts);
+	ASSERT_OK_PTR(strstr(log_buf, "0: R1=ctx() R10=fp0"), "good_log_2");
+	ASSERT_GE(fd, 0, "good_fd2");
+	if (fd >= 0)
+		close(fd);
+
+	/* log_level == 0 should fill log_buf for bad prog */
+	log_buf[0] = '\0';
+	opts.log_level = 0;
+	fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, "bad_prog", "GPL",
+			   bad_prog_insns, bad_prog_insn_cnt, &opts);
+	ASSERT_OK_PTR(strstr(log_buf, "R0 !read_ok"), "bad_log_0");
+	ASSERT_LT(fd, 0, "bad_fd");
+	if (fd >= 0)
+		close(fd);
+
+	free(log_buf);
+}
+
+static void bpf_btf_load_log_buf(void)
+{
+	LIBBPF_OPTS(bpf_btf_load_opts, opts);
+	const size_t log_buf_sz = 1024 * 1024;
+	const void *raw_btf_data;
+	__u32 raw_btf_size;
+	struct btf *btf;
+	char *log_buf = NULL;
+	int fd = -1;
+
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "empty_btf"))
+		return;
+
+	ASSERT_GT(btf__add_int(btf, "int", 4, 0), 0, "int_type");
+
+	raw_btf_data = btf__raw_data(btf, &raw_btf_size);
+	if (!ASSERT_OK_PTR(raw_btf_data, "raw_btf_data_good"))
+		goto cleanup;
+
+	log_buf = malloc(log_buf_sz);
+	if (!ASSERT_OK_PTR(log_buf, "log_buf_alloc"))
+		goto cleanup;
+	opts.log_buf = log_buf;
+	opts.log_size = log_buf_sz;
+
+	/* with log_level == 0 log_buf should stay empty for good BTF */
+	log_buf[0] = '\0';
+	opts.log_level = 0;
+	fd = bpf_btf_load(raw_btf_data, raw_btf_size, &opts);
+	ASSERT_STREQ(log_buf, "", "good_log_0");
+	ASSERT_GE(fd, 0, "good_fd1");
+	if (fd >= 0)
+		close(fd);
+	fd = -1;
+
+	/* log_level == 2 should always fill log_buf, even for good BTF */
+	log_buf[0] = '\0';
+	opts.log_level = 2;
+	fd = bpf_btf_load(raw_btf_data, raw_btf_size, &opts);
+	printf("LOG_BUF: %s\n", log_buf);
+	ASSERT_OK_PTR(strstr(log_buf, "magic: 0xeb9f"), "good_log_2");
+	ASSERT_GE(fd, 0, "good_fd2");
+	if (fd >= 0)
+		close(fd);
+	fd = -1;
+
+	/* make BTF bad, add pointer pointing to non-existing type */
+	ASSERT_GT(btf__add_ptr(btf, 100), 0, "bad_ptr_type");
+
+	raw_btf_data = btf__raw_data(btf, &raw_btf_size);
+	if (!ASSERT_OK_PTR(raw_btf_data, "raw_btf_data_bad"))
+		goto cleanup;
+
+	/* log_level == 0 should fill log_buf for bad BTF */
+	log_buf[0] = '\0';
+	opts.log_level = 0;
+	fd = bpf_btf_load(raw_btf_data, raw_btf_size, &opts);
+	printf("LOG_BUF: %s\n", log_buf);
+	ASSERT_OK_PTR(strstr(log_buf, "[2] PTR (anon) type_id=100 Invalid type_id"), "bad_log_0");
+	ASSERT_LT(fd, 0, "bad_fd");
+	if (fd >= 0)
+		close(fd);
+	fd = -1;
+
+cleanup:
+	free(log_buf);
+	btf__free(btf);
+}
+
+void test_log_buf(void)
+{
+	if (test__start_subtest("obj_load_log_buf"))
+		obj_load_log_buf();
+	if (test__start_subtest("bpf_prog_load_log_buf"))
+		bpf_prog_load_log_buf();
+	if (test__start_subtest("bpf_btf_load_log_buf"))
+		bpf_btf_load_log_buf();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/log_fixup.c b/tools/testing/selftests/bpf/prog_tests/log_fixup.c
new file mode 100644
index 000000000000..90a98e23be61
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/log_fixup.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "test_log_fixup.skel.h"
+
+enum trunc_type {
+	TRUNC_NONE,
+	TRUNC_PARTIAL,
+	TRUNC_FULL,
+};
+
+static void bad_core_relo(size_t log_buf_size, enum trunc_type trunc_type)
+{
+	char log_buf[8 * 1024];
+	struct test_log_fixup* skel;
+	int err;
+
+	skel = test_log_fixup__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.bad_relo, true);
+	memset(log_buf, 0, sizeof(log_buf));
+	bpf_program__set_log_buf(skel->progs.bad_relo, log_buf, log_buf_size ?: sizeof(log_buf));
+	bpf_program__set_log_level(skel->progs.bad_relo, 1 | 8); /* BPF_LOG_FIXED to force truncation */
+
+	err = test_log_fixup__load(skel);
+	if (!ASSERT_ERR(err, "load_fail"))
+		goto cleanup;
+
+	ASSERT_HAS_SUBSTR(log_buf,
+			  "0: <invalid CO-RE relocation>\n"
+			  "failed to resolve CO-RE relocation <byte_sz> ",
+			  "log_buf_part1");
+
+	switch (trunc_type) {
+	case TRUNC_NONE:
+		ASSERT_HAS_SUBSTR(log_buf,
+				  "struct task_struct___bad.fake_field (0:1 @ offset 4)\n",
+				  "log_buf_part2");
+		ASSERT_HAS_SUBSTR(log_buf,
+				  "max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0\n",
+				  "log_buf_end");
+		break;
+	case TRUNC_PARTIAL:
+		/* we should get full libbpf message patch */
+		ASSERT_HAS_SUBSTR(log_buf,
+				  "struct task_struct___bad.fake_field (0:1 @ offset 4)\n",
+				  "log_buf_part2");
+		/* we shouldn't get full end of BPF verifier log */
+		ASSERT_NULL(strstr(log_buf, "max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0\n"),
+			    "log_buf_end");
+		break;
+	case TRUNC_FULL:
+		/* we shouldn't get second part of libbpf message patch */
+		ASSERT_NULL(strstr(log_buf, "struct task_struct___bad.fake_field (0:1 @ offset 4)\n"),
+			    "log_buf_part2");
+		/* we shouldn't get full end of BPF verifier log */
+		ASSERT_NULL(strstr(log_buf, "max_states_per_insn 0 total_states 0 peak_states 0 mark_read 0\n"),
+			    "log_buf_end");
+		break;
+	}
+
+	if (env.verbosity > VERBOSE_NONE)
+		printf("LOG:   \n=================\n%s=================\n", log_buf);
+cleanup:
+	test_log_fixup__destroy(skel);
+}
+
+static void bad_core_relo_subprog(void)
+{
+	char log_buf[8 * 1024];
+	struct test_log_fixup* skel;
+	int err;
+
+	skel = test_log_fixup__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.bad_relo_subprog, true);
+	bpf_program__set_log_buf(skel->progs.bad_relo_subprog, log_buf, sizeof(log_buf));
+
+	err = test_log_fixup__load(skel);
+	if (!ASSERT_ERR(err, "load_fail"))
+		goto cleanup;
+
+	ASSERT_HAS_SUBSTR(log_buf,
+			  ": <invalid CO-RE relocation>\n"
+			  "failed to resolve CO-RE relocation <byte_off> ",
+			  "log_buf");
+	ASSERT_HAS_SUBSTR(log_buf,
+			  "struct task_struct___bad.fake_field_subprog (0:2 @ offset 8)\n",
+			  "log_buf");
+
+	if (env.verbosity > VERBOSE_NONE)
+		printf("LOG:   \n=================\n%s=================\n", log_buf);
+
+cleanup:
+	test_log_fixup__destroy(skel);
+}
+
+static void missing_map(void)
+{
+	char log_buf[8 * 1024];
+	struct test_log_fixup* skel;
+	int err;
+
+	skel = test_log_fixup__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_map__set_autocreate(skel->maps.missing_map, false);
+
+	bpf_program__set_autoload(skel->progs.use_missing_map, true);
+	bpf_program__set_log_buf(skel->progs.use_missing_map, log_buf, sizeof(log_buf));
+
+	err = test_log_fixup__load(skel);
+	if (!ASSERT_ERR(err, "load_fail"))
+		goto cleanup;
+
+	ASSERT_TRUE(bpf_map__autocreate(skel->maps.existing_map), "existing_map_autocreate");
+	ASSERT_FALSE(bpf_map__autocreate(skel->maps.missing_map), "missing_map_autocreate");
+
+	ASSERT_HAS_SUBSTR(log_buf,
+			  ": <invalid BPF map reference>\n"
+			  "BPF map 'missing_map' is referenced but wasn't created\n",
+			  "log_buf");
+
+	if (env.verbosity > VERBOSE_NONE)
+		printf("LOG:   \n=================\n%s=================\n", log_buf);
+
+cleanup:
+	test_log_fixup__destroy(skel);
+}
+
+static void missing_kfunc(void)
+{
+	char log_buf[8 * 1024];
+	struct test_log_fixup* skel;
+	int err;
+
+	skel = test_log_fixup__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.use_missing_kfunc, true);
+	bpf_program__set_log_buf(skel->progs.use_missing_kfunc, log_buf, sizeof(log_buf));
+
+	err = test_log_fixup__load(skel);
+	if (!ASSERT_ERR(err, "load_fail"))
+		goto cleanup;
+
+	ASSERT_HAS_SUBSTR(log_buf,
+			  "0: <invalid kfunc call>\n"
+			  "kfunc 'bpf_nonexistent_kfunc' is referenced but wasn't resolved\n",
+			  "log_buf");
+
+	if (env.verbosity > VERBOSE_NONE)
+		printf("LOG:   \n=================\n%s=================\n", log_buf);
+
+cleanup:
+	test_log_fixup__destroy(skel);
+}
+
+void test_log_fixup(void)
+{
+	if (test__start_subtest("bad_core_relo_trunc_none"))
+		bad_core_relo(0, TRUNC_NONE /* full buf */);
+	if (test__start_subtest("bad_core_relo_trunc_partial"))
+		bad_core_relo(300, TRUNC_PARTIAL /* truncate original log a bit */);
+	if (test__start_subtest("bad_core_relo_trunc_full"))
+		bad_core_relo(240, TRUNC_FULL  /* truncate also libbpf's message patch */);
+	if (test__start_subtest("bad_core_relo_subprog"))
+		bad_core_relo_subprog();
+	if (test__start_subtest("missing_map"))
+		missing_map();
+	if (test__start_subtest("missing_kfunc"))
+		missing_kfunc();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c b/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c
new file mode 100644
index 000000000000..a767bb4a271c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lookup_and_delete.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <test_progs.h>
+#include "test_lookup_and_delete.skel.h"
+
+#define START_VALUE 1234
+#define NEW_VALUE 4321
+#define MAX_ENTRIES 2
+
+static int duration;
+static int nr_cpus;
+
+static int fill_values(int map_fd)
+{
+	__u64 key, value = START_VALUE;
+	int err;
+
+	for (key = 1; key < MAX_ENTRIES + 1; key++) {
+		err = bpf_map_update_elem(map_fd, &key, &value, BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int fill_values_percpu(int map_fd)
+{
+	__u64 key, value[nr_cpus];
+	int i, err;
+
+	for (i = 0; i < nr_cpus; i++)
+		value[i] = START_VALUE;
+
+	for (key = 1; key < MAX_ENTRIES + 1; key++) {
+		err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static struct test_lookup_and_delete *setup_prog(enum bpf_map_type map_type,
+						 int *map_fd)
+{
+	struct test_lookup_and_delete *skel;
+	int err;
+
+	skel = test_lookup_and_delete__open();
+	if (!ASSERT_OK_PTR(skel, "test_lookup_and_delete__open"))
+		return NULL;
+
+	err = bpf_map__set_type(skel->maps.hash_map, map_type);
+	if (!ASSERT_OK(err, "bpf_map__set_type"))
+		goto cleanup;
+
+	err = bpf_map__set_max_entries(skel->maps.hash_map, MAX_ENTRIES);
+	if (!ASSERT_OK(err, "bpf_map__set_max_entries"))
+		goto cleanup;
+
+	err = test_lookup_and_delete__load(skel);
+	if (!ASSERT_OK(err, "test_lookup_and_delete__load"))
+		goto cleanup;
+
+	*map_fd = bpf_map__fd(skel->maps.hash_map);
+	if (!ASSERT_GE(*map_fd, 0, "bpf_map__fd"))
+		goto cleanup;
+
+	return skel;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+	return NULL;
+}
+
+/* Triggers BPF program that updates map with given key and value */
+static int trigger_tp(struct test_lookup_and_delete *skel, __u64 key,
+		      __u64 value)
+{
+	int err;
+
+	skel->bss->set_pid = getpid();
+	skel->bss->set_key = key;
+	skel->bss->set_value = value;
+
+	err = test_lookup_and_delete__attach(skel);
+	if (!ASSERT_OK(err, "test_lookup_and_delete__attach"))
+		return -1;
+
+	syscall(__NR_getpgid);
+
+	test_lookup_and_delete__detach(skel);
+
+	return 0;
+}
+
+static void test_lookup_and_delete_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, value;
+	int map_fd, err;
+
+	/* Setup program and fill the map. */
+	skel = setup_prog(BPF_MAP_TYPE_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values(map_fd);
+	if (!ASSERT_OK(err, "fill_values"))
+		goto cleanup;
+
+	/* Lookup and delete element. */
+	key = 1;
+	err = bpf_map__lookup_and_delete_elem(skel->maps.hash_map,
+					      &key, sizeof(key), &value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	/* Fetched value should match the initially set value. */
+	if (CHECK(value != START_VALUE, "bpf_map_lookup_and_delete_elem",
+		  "unexpected value=%lld\n", value))
+		goto cleanup;
+
+	/* Check that the entry is non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_percpu_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, val, value[nr_cpus];
+	int map_fd, err, i;
+
+	/* Setup program and fill the map. */
+	skel = setup_prog(BPF_MAP_TYPE_PERCPU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values_percpu(map_fd);
+	if (!ASSERT_OK(err, "fill_values_percpu"))
+		goto cleanup;
+
+	/* Lookup and delete element. */
+	key = 1;
+	err = bpf_map__lookup_and_delete_elem(skel->maps.hash_map,
+					      &key, sizeof(key), value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	for (i = 0; i < nr_cpus; i++) {
+		val = value[i];
+
+		/* Fetched value should match the initially set value. */
+		if (CHECK(val != START_VALUE, "map value",
+			  "unexpected for cpu %d: %lld\n", i, val))
+			goto cleanup;
+	}
+
+	/* Check that the entry is non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_lru_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, value;
+	int map_fd, err;
+
+	/* Setup program and fill the LRU map. */
+	skel = setup_prog(BPF_MAP_TYPE_LRU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values(map_fd);
+	if (!ASSERT_OK(err, "fill_values"))
+		goto cleanup;
+
+	/* Insert new element at key=3, should reuse LRU element. */
+	key = 3;
+	err = trigger_tp(skel, key, NEW_VALUE);
+	if (!ASSERT_OK(err, "trigger_tp"))
+		goto cleanup;
+
+	/* Lookup and delete element 3. */
+	err = bpf_map__lookup_and_delete_elem(skel->maps.hash_map,
+					      &key, sizeof(key), &value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	/* Value should match the new value. */
+	if (CHECK(value != NEW_VALUE, "bpf_map_lookup_and_delete_elem",
+		  "unexpected value=%lld\n", value))
+		goto cleanup;
+
+	/* Check that entries 3 and 1 are non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	key = 1;
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+static void test_lookup_and_delete_lru_percpu_hash(void)
+{
+	struct test_lookup_and_delete *skel;
+	__u64 key, val, value[nr_cpus];
+	int map_fd, err, i, cpucnt = 0;
+
+	/* Setup program and fill the LRU map. */
+	skel = setup_prog(BPF_MAP_TYPE_LRU_PERCPU_HASH, &map_fd);
+	if (!ASSERT_OK_PTR(skel, "setup_prog"))
+		return;
+
+	err = fill_values_percpu(map_fd);
+	if (!ASSERT_OK(err, "fill_values_percpu"))
+		goto cleanup;
+
+	/* Insert new element at key=3, should reuse LRU element 1. */
+	key = 3;
+	err = trigger_tp(skel, key, NEW_VALUE);
+	if (!ASSERT_OK(err, "trigger_tp"))
+		goto cleanup;
+
+	/* Clean value. */
+	for (i = 0; i < nr_cpus; i++)
+		value[i] = 0;
+
+	/* Lookup and delete element 3. */
+	err = bpf_map__lookup_and_delete_elem(skel->maps.hash_map,
+					      &key, sizeof(key), value, sizeof(value), 0);
+	if (!ASSERT_OK(err, "bpf_map_lookup_and_delete_elem"))
+		goto cleanup;
+
+	/* Check if only one CPU has set the value. */
+	for (i = 0; i < nr_cpus; i++) {
+		val = value[i];
+		if (val) {
+			if (CHECK(val != NEW_VALUE, "map value",
+				  "unexpected for cpu %d: %lld\n", i, val))
+				goto cleanup;
+			cpucnt++;
+		}
+	}
+	if (CHECK(cpucnt != 1, "map value", "set for %d CPUs instead of 1!\n",
+		  cpucnt))
+		goto cleanup;
+
+	/* Check that entries 3 and 1 are non existent. */
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	key = 1;
+	err = bpf_map_lookup_elem(map_fd, &key, &value);
+	if (!ASSERT_ERR(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+cleanup:
+	test_lookup_and_delete__destroy(skel);
+}
+
+void test_lookup_and_delete(void)
+{
+	nr_cpus = bpf_num_possible_cpus();
+
+	if (test__start_subtest("lookup_and_delete"))
+		test_lookup_and_delete_hash();
+	if (test__start_subtest("lookup_and_delete_percpu"))
+		test_lookup_and_delete_percpu_hash();
+	if (test__start_subtest("lookup_and_delete_lru"))
+		test_lookup_and_delete_lru_hash();
+	if (test__start_subtest("lookup_and_delete_lru_percpu"))
+		test_lookup_and_delete_lru_percpu_hash();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lookup_key.c b/tools/testing/selftests/bpf/prog_tests/lookup_key.c
new file mode 100644
index 000000000000..68025e88f352
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lookup_key.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include <linux/keyctl.h>
+#include <test_progs.h>
+
+#include "test_lookup_key.skel.h"
+
+#define KEY_LOOKUP_CREATE	0x01
+#define KEY_LOOKUP_PARTIAL	0x02
+
+static bool kfunc_not_supported;
+
+static int libbpf_print_cb(enum libbpf_print_level level, const char *fmt,
+			   va_list args)
+{
+	char *func;
+
+	if (strcmp(fmt, "libbpf: extern (func ksym) '%s': not found in kernel or module BTFs\n"))
+		return 0;
+
+	func = va_arg(args, char *);
+
+	if (strcmp(func, "bpf_lookup_user_key") && strcmp(func, "bpf_key_put") &&
+	    strcmp(func, "bpf_lookup_system_key"))
+		return 0;
+
+	kfunc_not_supported = true;
+	return 0;
+}
+
+void test_lookup_key(void)
+{
+	libbpf_print_fn_t old_print_cb;
+	struct test_lookup_key *skel;
+	__u32 next_id;
+	int ret;
+
+	skel = test_lookup_key__open();
+	if (!ASSERT_OK_PTR(skel, "test_lookup_key__open"))
+		return;
+
+	old_print_cb = libbpf_set_print(libbpf_print_cb);
+	ret = test_lookup_key__load(skel);
+	libbpf_set_print(old_print_cb);
+
+	if (ret < 0 && kfunc_not_supported) {
+		printf("%s:SKIP:bpf_lookup_*_key(), bpf_key_put() kfuncs not supported\n",
+		       __func__);
+		test__skip();
+		goto close_prog;
+	}
+
+	if (!ASSERT_OK(ret, "test_lookup_key__load"))
+		goto close_prog;
+
+	ret = test_lookup_key__attach(skel);
+	if (!ASSERT_OK(ret, "test_lookup_key__attach"))
+		goto close_prog;
+
+	skel->bss->monitored_pid = getpid();
+	skel->bss->key_serial = KEY_SPEC_THREAD_KEYRING;
+
+	/* The thread-specific keyring does not exist, this test fails. */
+	skel->bss->flags = 0;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	if (!ASSERT_LT(ret, 0, "bpf_prog_get_next_id"))
+		goto close_prog;
+
+	/* Force creation of the thread-specific keyring, this test succeeds. */
+	skel->bss->flags = KEY_LOOKUP_CREATE;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	if (!ASSERT_OK(ret, "bpf_prog_get_next_id"))
+		goto close_prog;
+
+	/* Pass both lookup flags for parameter validation. */
+	skel->bss->flags = KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	if (!ASSERT_OK(ret, "bpf_prog_get_next_id"))
+		goto close_prog;
+
+	/* Pass invalid flags. */
+	skel->bss->flags = UINT64_MAX;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	if (!ASSERT_LT(ret, 0, "bpf_prog_get_next_id"))
+		goto close_prog;
+
+	skel->bss->key_serial = 0;
+	skel->bss->key_id = 1;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	if (!ASSERT_OK(ret, "bpf_prog_get_next_id"))
+		goto close_prog;
+
+	skel->bss->key_id = UINT32_MAX;
+
+	ret = bpf_prog_get_next_id(0, &next_id);
+	ASSERT_LT(ret, 0, "bpf_prog_get_next_id");
+
+close_prog:
+	skel->bss->monitored_pid = 0;
+	test_lookup_key__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lru_bug.c b/tools/testing/selftests/bpf/prog_tests/lru_bug.c
new file mode 100644
index 000000000000..3c7822390827
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lru_bug.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+#include "lru_bug.skel.h"
+
+void test_lru_bug(void)
+{
+	struct lru_bug *skel;
+	int ret;
+
+	skel = lru_bug__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "lru_bug__open_and_load"))
+		return;
+	ret = lru_bug__attach(skel);
+	if (!ASSERT_OK(ret, "lru_bug__attach"))
+		goto end;
+	usleep(1);
+	ASSERT_OK(skel->data->result, "prealloc_lru_pop doesn't call check_and_init_map_value");
+end:
+	lru_bug__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c b/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c
new file mode 100644
index 000000000000..6df25de8f080
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "lsm_cgroup.skel.h"
+#include "lsm_cgroup_nonvoid.skel.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+static struct btf *btf;
+
+static __u32 query_prog_cnt(int cgroup_fd, const char *attach_func)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, p);
+	int cnt = 0;
+	int i;
+
+	ASSERT_OK(bpf_prog_query_opts(cgroup_fd, BPF_LSM_CGROUP, &p), "prog_query");
+
+	if (!attach_func)
+		return p.prog_cnt;
+
+	/* When attach_func is provided, count the number of progs that
+	 * attach to the given symbol.
+	 */
+
+	if (!btf)
+		btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK(libbpf_get_error(btf), "btf_vmlinux"))
+		return -1;
+
+	p.prog_ids = malloc(sizeof(u32) * p.prog_cnt);
+	p.prog_attach_flags = malloc(sizeof(u32) * p.prog_cnt);
+	ASSERT_OK(bpf_prog_query_opts(cgroup_fd, BPF_LSM_CGROUP, &p), "prog_query");
+
+	for (i = 0; i < p.prog_cnt; i++) {
+		struct bpf_prog_info info = {};
+		__u32 info_len = sizeof(info);
+		int fd;
+
+		fd = bpf_prog_get_fd_by_id(p.prog_ids[i]);
+		ASSERT_GE(fd, 0, "prog_get_fd_by_id");
+		ASSERT_OK(bpf_prog_get_info_by_fd(fd, &info, &info_len),
+			  "prog_info_by_fd");
+		close(fd);
+
+		if (info.attach_btf_id ==
+		    btf__find_by_name_kind(btf, attach_func, BTF_KIND_FUNC))
+			cnt++;
+	}
+
+	free(p.prog_ids);
+	free(p.prog_attach_flags);
+
+	return cnt;
+}
+
+static void test_lsm_cgroup_functional(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_prog_attach_opts, attach_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int cgroup_fd = -1, cgroup_fd2 = -1, cgroup_fd3 = -1;
+	int listen_fd, client_fd, accepted_fd;
+	struct lsm_cgroup *skel = NULL;
+	int post_create_prog_fd2 = -1;
+	int post_create_prog_fd = -1;
+	int bind_link_fd2 = -1;
+	int bind_prog_fd2 = -1;
+	int alloc_prog_fd = -1;
+	int bind_prog_fd = -1;
+	int bind_link_fd = -1;
+	int clone_prog_fd = -1;
+	int err, fd, prio;
+	socklen_t socklen;
+
+	cgroup_fd3 = test__join_cgroup("/sock_policy_empty");
+	if (!ASSERT_GE(cgroup_fd3, 0, "create empty cgroup"))
+		goto close_cgroup;
+
+	cgroup_fd2 = test__join_cgroup("/sock_policy_reuse");
+	if (!ASSERT_GE(cgroup_fd2, 0, "create cgroup for reuse"))
+		goto close_cgroup;
+
+	cgroup_fd = test__join_cgroup("/sock_policy");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		goto close_cgroup;
+
+	skel = lsm_cgroup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto close_cgroup;
+
+	post_create_prog_fd = bpf_program__fd(skel->progs.socket_post_create);
+	post_create_prog_fd2 = bpf_program__fd(skel->progs.socket_post_create2);
+	bind_prog_fd = bpf_program__fd(skel->progs.socket_bind);
+	bind_prog_fd2 = bpf_program__fd(skel->progs.socket_bind2);
+	alloc_prog_fd = bpf_program__fd(skel->progs.socket_alloc);
+	clone_prog_fd = bpf_program__fd(skel->progs.socket_clone);
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_sk_alloc_security"), 0, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 0, "total prog count");
+	err = bpf_prog_attach(alloc_prog_fd, cgroup_fd, BPF_LSM_CGROUP, 0);
+	if (err == -ENOTSUPP) {
+		test__skip();
+		goto close_cgroup;
+	}
+	if (!ASSERT_OK(err, "attach alloc_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_sk_alloc_security"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 1, "total prog count");
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_inet_csk_clone"), 0, "prog count");
+	err = bpf_prog_attach(clone_prog_fd, cgroup_fd, BPF_LSM_CGROUP, 0);
+	if (!ASSERT_OK(err, "attach clone_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_inet_csk_clone"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 2, "total prog count");
+
+	/* Make sure replacing works. */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 0, "prog count");
+	err = bpf_prog_attach(post_create_prog_fd, cgroup_fd,
+			      BPF_LSM_CGROUP, 0);
+	if (!ASSERT_OK(err, "attach post_create_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 3, "total prog count");
+
+	attach_opts.replace_prog_fd = post_create_prog_fd;
+	err = bpf_prog_attach_opts(post_create_prog_fd2, cgroup_fd,
+				   BPF_LSM_CGROUP, &attach_opts);
+	if (!ASSERT_OK(err, "prog replace post_create_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 3, "total prog count");
+
+	/* Try the same attach/replace via link API. */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 0, "prog count");
+	bind_link_fd = bpf_link_create(bind_prog_fd, cgroup_fd,
+				       BPF_LSM_CGROUP, NULL);
+	if (!ASSERT_GE(bind_link_fd, 0, "link create bind_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+
+	update_opts.old_prog_fd = bind_prog_fd;
+	update_opts.flags = BPF_F_REPLACE;
+
+	err = bpf_link_update(bind_link_fd, bind_prog_fd2, &update_opts);
+	if (!ASSERT_OK(err, "link update bind_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+
+	/* Attach another instance of bind program to another cgroup.
+	 * This should trigger the reuse of the trampoline shim (two
+	 * programs attaching to the same btf_id).
+	 */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, "bpf_lsm_socket_bind"), 0, "prog count");
+	bind_link_fd2 = bpf_link_create(bind_prog_fd2, cgroup_fd2,
+					BPF_LSM_CGROUP, NULL);
+	if (!ASSERT_GE(bind_link_fd2, 0, "link create bind_prog_fd2"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, NULL), 1, "total prog count");
+
+	fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (!(skel->kconfig->CONFIG_SECURITY_APPARMOR
+	    || skel->kconfig->CONFIG_SECURITY_SELINUX
+	    || skel->kconfig->CONFIG_SECURITY_SMACK))
+		/* AF_UNIX is prohibited. */
+		ASSERT_LT(fd, 0, "socket(AF_UNIX)");
+	close(fd);
+
+	/* AF_INET6 gets default policy (sk_priority). */
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket(SOCK_STREAM)"))
+		goto detach_cgroup;
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 123, "sk_priority");
+
+	close(fd);
+
+	/* TX-only AF_PACKET is allowed. */
+
+	ASSERT_LT(socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL)), 0,
+		  "socket(AF_PACKET, ..., ETH_P_ALL)");
+
+	fd = socket(AF_PACKET, SOCK_RAW, 0);
+	ASSERT_GE(fd, 0, "socket(AF_PACKET, ..., 0)");
+
+	/* TX-only AF_PACKET can not be rebound. */
+
+	struct sockaddr_ll sa = {
+		.sll_family = AF_PACKET,
+		.sll_protocol = htons(ETH_P_ALL),
+	};
+	ASSERT_LT(bind(fd, (struct sockaddr *)&sa, sizeof(sa)), 0,
+		  "bind(ETH_P_ALL)");
+
+	close(fd);
+
+	/* Trigger passive open. */
+
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	ASSERT_GE(listen_fd, 0, "start_server");
+	client_fd = connect_to_fd(listen_fd, 0);
+	ASSERT_GE(client_fd, 0, "connect_to_fd");
+	accepted_fd = accept(listen_fd, NULL, NULL);
+	ASSERT_GE(accepted_fd, 0, "accept");
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(accepted_fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 234, "sk_priority");
+
+	/* These are replaced and never called. */
+	ASSERT_EQ(skel->bss->called_socket_post_create, 0, "called_create");
+	ASSERT_EQ(skel->bss->called_socket_bind, 0, "called_bind");
+
+	/* AF_INET6+SOCK_STREAM
+	 * AF_PACKET+SOCK_RAW
+	 * AF_UNIX+SOCK_RAW if already have non-bpf lsms installed
+	 * listen_fd
+	 * client_fd
+	 * accepted_fd
+	 */
+	if (skel->kconfig->CONFIG_SECURITY_APPARMOR
+	    || skel->kconfig->CONFIG_SECURITY_SELINUX
+	    || skel->kconfig->CONFIG_SECURITY_SMACK)
+		/* AF_UNIX+SOCK_RAW if already have non-bpf lsms installed */
+		ASSERT_EQ(skel->bss->called_socket_post_create2, 6, "called_create2");
+	else
+		ASSERT_EQ(skel->bss->called_socket_post_create2, 5, "called_create2");
+
+	/* start_server
+	 * bind(ETH_P_ALL)
+	 */
+	ASSERT_EQ(skel->bss->called_socket_bind2, 2, "called_bind2");
+	/* Single accept(). */
+	ASSERT_EQ(skel->bss->called_socket_clone, 1, "called_clone");
+
+	/* AF_UNIX+SOCK_STREAM (failed)
+	 * AF_INET6+SOCK_STREAM
+	 * AF_PACKET+SOCK_RAW (failed)
+	 * AF_PACKET+SOCK_RAW
+	 * listen_fd
+	 * client_fd
+	 * accepted_fd
+	 */
+	ASSERT_EQ(skel->bss->called_socket_alloc, 7, "called_alloc");
+
+	close(listen_fd);
+	close(client_fd);
+	close(accepted_fd);
+
+	/* Make sure other cgroup doesn't trigger the programs. */
+
+	if (!ASSERT_OK(join_cgroup("/sock_policy_empty"), "join root cgroup"))
+		goto detach_cgroup;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket(SOCK_STREAM)"))
+		goto detach_cgroup;
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 0, "sk_priority");
+
+	close(fd);
+
+detach_cgroup:
+	ASSERT_GE(bpf_prog_detach2(post_create_prog_fd2, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_create");
+	close(bind_link_fd);
+	/* Don't close bind_link_fd2, exercise cgroup release cleanup. */
+	ASSERT_GE(bpf_prog_detach2(alloc_prog_fd, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_alloc");
+	ASSERT_GE(bpf_prog_detach2(clone_prog_fd, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_clone");
+
+close_cgroup:
+	close(cgroup_fd);
+	close(cgroup_fd2);
+	close(cgroup_fd3);
+	lsm_cgroup__destroy(skel);
+}
+
+static void test_lsm_cgroup_nonvoid(void)
+{
+	struct lsm_cgroup_nonvoid *skel = NULL;
+
+	skel = lsm_cgroup_nonvoid__open_and_load();
+	ASSERT_NULL(skel, "open succeeds");
+	lsm_cgroup_nonvoid__destroy(skel);
+}
+
+void test_lsm_cgroup(void)
+{
+	if (test__start_subtest("functional"))
+		test_lsm_cgroup_functional();
+	if (test__start_subtest("nonvoid"))
+		test_lsm_cgroup_nonvoid();
+	btf__free(btf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h b/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h
new file mode 100644
index 000000000000..ccec0fcdabc1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lwt_helpers.h
@@ -0,0 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __LWT_HELPERS_H
+#define __LWT_HELPERS_H
+
+#include <time.h>
+#include <net/if.h>
+#include <linux/icmp.h>
+
+#include "test_progs.h"
+
+#define log_err(MSG, ...) \
+	fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
+		__FILE__, __LINE__, strerror(errno), ##__VA_ARGS__)
+
+#define RUN_TEST(name)                                                        \
+	({                                                                    \
+		if (test__start_subtest(#name))                               \
+			if (ASSERT_OK(netns_create(), "netns_create")) {      \
+				struct nstoken *token = open_netns(NETNS);    \
+				if (ASSERT_OK_PTR(token, "setns")) {          \
+					test_ ## name();                      \
+					close_netns(token);                   \
+				}                                             \
+				netns_delete();                               \
+			}                                                     \
+	})
+
+static inline int netns_create(void)
+{
+	return system("ip netns add " NETNS);
+}
+
+static inline int netns_delete(void)
+{
+	return system("ip netns del " NETNS ">/dev/null 2>&1");
+}
+
+#define ICMP_PAYLOAD_SIZE     100
+
+/* Match an ICMP packet with payload len ICMP_PAYLOAD_SIZE */
+static int __expect_icmp_ipv4(char *buf, ssize_t len)
+{
+	struct iphdr *ip = (struct iphdr *)buf;
+	struct icmphdr *icmp = (struct icmphdr *)(ip + 1);
+	ssize_t min_header_len = sizeof(*ip) + sizeof(*icmp);
+
+	if (len < min_header_len)
+		return -1;
+
+	if (ip->protocol != IPPROTO_ICMP)
+		return -1;
+
+	if (icmp->type != ICMP_ECHO)
+		return -1;
+
+	return len == ICMP_PAYLOAD_SIZE + min_header_len;
+}
+
+typedef int (*filter_t) (char *, ssize_t);
+
+/* wait_for_packet - wait for a packet that matches the filter
+ *
+ * @fd: tun fd/packet socket to read packet
+ * @filter: filter function, returning 1 if matches
+ * @timeout: timeout to wait for the packet
+ *
+ * Returns 1 if a matching packet is read, 0 if timeout expired, -1 on error.
+ */
+static int wait_for_packet(int fd, filter_t filter, struct timeval *timeout)
+{
+	char buf[4096];
+	int max_retry = 5; /* in case we read some spurious packets */
+	fd_set fds;
+
+	FD_ZERO(&fds);
+	while (max_retry--) {
+		/* Linux modifies timeout arg... So make a copy */
+		struct timeval copied_timeout = *timeout;
+		ssize_t ret = -1;
+
+		FD_SET(fd, &fds);
+
+		ret = select(1 + fd, &fds, NULL, NULL, &copied_timeout);
+		if (ret <= 0) {
+			if (errno == EINTR)
+				continue;
+			else if (errno == EAGAIN || ret == 0)
+				return 0;
+
+			log_err("select failed");
+			return -1;
+		}
+
+		ret = read(fd, buf, sizeof(buf));
+
+		if (ret <= 0) {
+			log_err("read(dev): %ld", ret);
+			return -1;
+		}
+
+		if (filter && filter(buf, ret) > 0)
+			return 1;
+	}
+
+	return 0;
+}
+
+#endif /* __LWT_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c b/tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c
new file mode 100644
index 000000000000..b6391af5f6f9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lwt_ip_encap.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <netinet/in.h>
+
+#include "network_helpers.h"
+#include "test_progs.h"
+
+#define BPF_FILE "test_lwt_ip_encap.bpf.o"
+
+#define NETNS_NAME_SIZE	32
+#define NETNS_BASE	"ns-lwt-ip-encap"
+
+#define IP4_ADDR_1 "172.16.1.100"
+#define IP4_ADDR_2 "172.16.2.100"
+#define IP4_ADDR_3 "172.16.3.100"
+#define IP4_ADDR_4 "172.16.4.100"
+#define IP4_ADDR_5 "172.16.5.100"
+#define IP4_ADDR_6 "172.16.6.100"
+#define IP4_ADDR_7 "172.16.7.100"
+#define IP4_ADDR_8 "172.16.8.100"
+#define IP4_ADDR_GRE "172.16.16.100"
+
+#define IP4_ADDR_SRC IP4_ADDR_1
+#define IP4_ADDR_DST IP4_ADDR_4
+
+#define IP6_ADDR_1 "fb01::1"
+#define IP6_ADDR_2 "fb02::1"
+#define IP6_ADDR_3 "fb03::1"
+#define IP6_ADDR_4 "fb04::1"
+#define IP6_ADDR_5 "fb05::1"
+#define IP6_ADDR_6 "fb06::1"
+#define IP6_ADDR_7 "fb07::1"
+#define IP6_ADDR_8 "fb08::1"
+#define IP6_ADDR_GRE "fb10::1"
+
+#define IP6_ADDR_SRC IP6_ADDR_1
+#define IP6_ADDR_DST IP6_ADDR_4
+
+/* Setup/topology:
+ *
+ *    NS1             NS2             NS3
+ *   veth1 <---> veth2   veth3 <---> veth4 (the top route)
+ *   veth5 <---> veth6   veth7 <---> veth8 (the bottom route)
+ *
+ *   Each vethN gets IP[4|6]_ADDR_N address.
+ *
+ *   IP*_ADDR_SRC = IP*_ADDR_1
+ *   IP*_ADDR_DST = IP*_ADDR_4
+ *
+ *   All tests test pings from IP*_ADDR__SRC to IP*_ADDR_DST.
+ *
+ *   By default, routes are configured to allow packets to go
+ *   IP*_ADDR_1 <=> IP*_ADDR_2 <=> IP*_ADDR_3 <=> IP*_ADDR_4 (the top route).
+ *
+ *   A GRE device is installed in NS3 with IP*_ADDR_GRE, and
+ *   NS1/NS2 are configured to route packets to IP*_ADDR_GRE via IP*_ADDR_8
+ *   (the bottom route).
+ *
+ * Tests:
+ *
+ *   1. Routes NS2->IP*_ADDR_DST are brought down, so the only way a ping
+ *      from IP*_ADDR_SRC to IP*_ADDR_DST can work is via IP*_ADDR_GRE.
+ *
+ *   2a. In an egress test, a bpf LWT_XMIT program is installed on veth1
+ *       that encaps the packets with an IP/GRE header to route to IP*_ADDR_GRE.
+ *
+ *       ping: SRC->[encap at veth1:egress]->GRE:decap->DST
+ *       ping replies go DST->SRC directly
+ *
+ *   2b. In an ingress test, a bpf LWT_IN program is installed on veth2
+ *       that encaps the packets with an IP/GRE header to route to IP*_ADDR_GRE.
+ *
+ *       ping: SRC->[encap at veth2:ingress]->GRE:decap->DST
+ *       ping replies go DST->SRC directly
+ */
+
+static int create_ns(char *name, size_t name_sz)
+{
+	if (!name)
+		goto fail;
+
+	if (!ASSERT_OK(append_tid(name, name_sz), "append TID"))
+		goto fail;
+
+	SYS(fail, "ip netns add %s", name);
+
+	/* rp_filter gets confused by what these tests are doing, so disable it */
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv4.conf.all.rp_filter=0", name);
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv4.conf.default.rp_filter=0", name);
+	/* Disable IPv6 DAD because it sometimes takes too long and fails tests */
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv6.conf.all.accept_dad=0", name);
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv6.conf.default.accept_dad=0", name);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int set_top_addr(const char *ns1, const char *ns2, const char *ns3)
+{
+	SYS(fail, "ip -n %s    a add %s/24  dev veth1", ns1, IP4_ADDR_1);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth2", ns2, IP4_ADDR_2);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth3", ns2, IP4_ADDR_3);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth4", ns3, IP4_ADDR_4);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth1", ns1, IP6_ADDR_1);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth2", ns2, IP6_ADDR_2);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth3", ns2, IP6_ADDR_3);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth4", ns3, IP6_ADDR_4);
+
+	SYS(fail, "ip -n %s link set dev veth1 up", ns1);
+	SYS(fail, "ip -n %s link set dev veth2 up", ns2);
+	SYS(fail, "ip -n %s link set dev veth3 up", ns2);
+	SYS(fail, "ip -n %s link set dev veth4 up", ns3);
+
+	return 0;
+fail:
+	return 1;
+}
+
+static int set_bottom_addr(const char *ns1, const char *ns2, const char *ns3)
+{
+	SYS(fail, "ip -n %s    a add %s/24  dev veth5", ns1, IP4_ADDR_5);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth6", ns2, IP4_ADDR_6);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth7", ns2, IP4_ADDR_7);
+	SYS(fail, "ip -n %s    a add %s/24  dev veth8", ns3, IP4_ADDR_8);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth5", ns1, IP6_ADDR_5);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth6", ns2, IP6_ADDR_6);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth7", ns2, IP6_ADDR_7);
+	SYS(fail, "ip -n %s -6 a add %s/128 dev veth8", ns3, IP6_ADDR_8);
+
+	SYS(fail, "ip -n %s link set dev veth5 up", ns1);
+	SYS(fail, "ip -n %s link set dev veth6 up", ns2);
+	SYS(fail, "ip -n %s link set dev veth7 up", ns2);
+	SYS(fail, "ip -n %s link set dev veth8 up", ns3);
+
+	return 0;
+fail:
+	return 1;
+}
+
+static int configure_vrf(const char *ns1, const char *ns2)
+{
+	if (!ns1 || !ns2)
+		goto fail;
+
+	SYS(fail, "ip -n %s link add red type vrf table 1001", ns1);
+	SYS(fail, "ip -n %s link set red up", ns1);
+	SYS(fail, "ip -n %s route add table 1001 unreachable default metric 8192", ns1);
+	SYS(fail, "ip -n %s -6 route add table 1001 unreachable default metric 8192", ns1);
+	SYS(fail, "ip -n %s link set veth1 vrf red", ns1);
+	SYS(fail, "ip -n %s link set veth5 vrf red", ns1);
+
+	SYS(fail, "ip -n %s link add red type vrf table 1001", ns2);
+	SYS(fail, "ip -n %s link set red up", ns2);
+	SYS(fail, "ip -n %s route add table 1001 unreachable default metric 8192", ns2);
+	SYS(fail, "ip -n %s -6 route add table 1001 unreachable default metric 8192", ns2);
+	SYS(fail, "ip -n %s link set veth2 vrf red", ns2);
+	SYS(fail, "ip -n %s link set veth3 vrf red", ns2);
+	SYS(fail, "ip -n %s link set veth6 vrf red", ns2);
+	SYS(fail, "ip -n %s link set veth7 vrf red", ns2);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int configure_ns1(const char *ns1, const char *vrf)
+{
+	struct nstoken *nstoken = NULL;
+
+	if (!ns1 || !vrf)
+		goto fail;
+
+	nstoken = open_netns(ns1);
+	if (!ASSERT_OK_PTR(nstoken, "open ns1"))
+		goto fail;
+
+	/* Top route */
+	SYS(fail, "ip    route add %s/32  dev veth1 %s", IP4_ADDR_2, vrf);
+	SYS(fail, "ip    route add default dev veth1 via %s %s", IP4_ADDR_2, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth1 %s", IP6_ADDR_2, vrf);
+	SYS(fail, "ip -6 route add default dev veth1 via %s %s", IP6_ADDR_2, vrf);
+	/* Bottom route */
+	SYS(fail, "ip    route add %s/32  dev veth5 %s", IP4_ADDR_6, vrf);
+	SYS(fail, "ip    route add %s/32  dev veth5 via  %s %s", IP4_ADDR_7, IP4_ADDR_6, vrf);
+	SYS(fail, "ip    route add %s/32  dev veth5 via  %s %s", IP4_ADDR_8, IP4_ADDR_6, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth5 %s", IP6_ADDR_6, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth5 via  %s %s", IP6_ADDR_7, IP6_ADDR_6, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth5 via  %s %s", IP6_ADDR_8, IP6_ADDR_6, vrf);
+
+	close_netns(nstoken);
+	return 0;
+fail:
+	close_netns(nstoken);
+	return -1;
+}
+
+static int configure_ns2(const char *ns2, const char *vrf)
+{
+	struct nstoken *nstoken = NULL;
+
+	if (!ns2 || !vrf)
+		goto fail;
+
+	nstoken = open_netns(ns2);
+	if (!ASSERT_OK_PTR(nstoken, "open ns2"))
+		goto fail;
+
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv4.ip_forward=1", ns2);
+	SYS(fail, "ip netns exec %s sysctl -wq net.ipv6.conf.all.forwarding=1", ns2);
+
+	/* Top route */
+	SYS(fail, "ip    route add %s/32  dev veth2 %s", IP4_ADDR_1, vrf);
+	SYS(fail, "ip    route add %s/32  dev veth3 %s", IP4_ADDR_4, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth2 %s", IP6_ADDR_1, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth3 %s", IP6_ADDR_4, vrf);
+	/* Bottom route */
+	SYS(fail, "ip    route add %s/32  dev veth6 %s", IP4_ADDR_5, vrf);
+	SYS(fail, "ip    route add %s/32  dev veth7 %s", IP4_ADDR_8, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth6 %s", IP6_ADDR_5, vrf);
+	SYS(fail, "ip -6 route add %s/128 dev veth7 %s", IP6_ADDR_8, vrf);
+
+	close_netns(nstoken);
+	return 0;
+fail:
+	close_netns(nstoken);
+	return -1;
+}
+
+static int configure_ns3(const char *ns3)
+{
+	struct nstoken *nstoken = NULL;
+
+	if (!ns3)
+		goto fail;
+
+	nstoken = open_netns(ns3);
+	if (!ASSERT_OK_PTR(nstoken, "open ns3"))
+		goto fail;
+
+	/* Top route */
+	SYS(fail, "ip    route add %s/32  dev veth4", IP4_ADDR_3);
+	SYS(fail, "ip    route add %s/32  dev veth4 via  %s", IP4_ADDR_1, IP4_ADDR_3);
+	SYS(fail, "ip    route add %s/32  dev veth4 via  %s", IP4_ADDR_2, IP4_ADDR_3);
+	SYS(fail, "ip -6 route add %s/128 dev veth4", IP6_ADDR_3);
+	SYS(fail, "ip -6 route add %s/128 dev veth4 via  %s", IP6_ADDR_1, IP6_ADDR_3);
+	SYS(fail, "ip -6 route add %s/128 dev veth4 via  %s", IP6_ADDR_2, IP6_ADDR_3);
+	/* Bottom route */
+	SYS(fail, "ip    route add %s/32  dev veth8", IP4_ADDR_7);
+	SYS(fail, "ip    route add %s/32  dev veth8 via  %s", IP4_ADDR_5, IP4_ADDR_7);
+	SYS(fail, "ip    route add %s/32  dev veth8 via  %s", IP4_ADDR_6, IP4_ADDR_7);
+	SYS(fail, "ip -6 route add %s/128 dev veth8", IP6_ADDR_7);
+	SYS(fail, "ip -6 route add %s/128 dev veth8 via  %s", IP6_ADDR_5, IP6_ADDR_7);
+	SYS(fail, "ip -6 route add %s/128 dev veth8 via  %s", IP6_ADDR_6, IP6_ADDR_7);
+
+	/* Configure IPv4 GRE device */
+	SYS(fail, "ip tunnel add gre_dev mode gre remote %s local %s ttl 255",
+	    IP4_ADDR_1, IP4_ADDR_GRE);
+	SYS(fail, "ip link set gre_dev up");
+	SYS(fail, "ip a add %s dev gre_dev", IP4_ADDR_GRE);
+
+	/* Configure IPv6 GRE device */
+	SYS(fail, "ip tunnel add gre6_dev mode ip6gre remote %s local %s ttl 255",
+	    IP6_ADDR_1, IP6_ADDR_GRE);
+	SYS(fail, "ip link set gre6_dev up");
+	SYS(fail, "ip a add %s dev gre6_dev", IP6_ADDR_GRE);
+
+	close_netns(nstoken);
+	return 0;
+fail:
+	close_netns(nstoken);
+	return -1;
+}
+
+static int setup_network(char *ns1, char *ns2, char *ns3, const char *vrf)
+{
+	if (!ns1 || !ns2 || !ns3 || !vrf)
+		goto fail;
+
+	SYS(fail, "ip -n %s link add veth1 type veth peer name veth2 netns %s", ns1, ns2);
+	SYS(fail, "ip -n %s link add veth3 type veth peer name veth4 netns %s", ns2, ns3);
+	SYS(fail, "ip -n %s link add veth5 type veth peer name veth6 netns %s", ns1, ns2);
+	SYS(fail, "ip -n %s link add veth7 type veth peer name veth8 netns %s", ns2, ns3);
+
+	if (vrf[0]) {
+		if (!ASSERT_OK(configure_vrf(ns1, ns2), "configure vrf"))
+			goto fail;
+	}
+	if (!ASSERT_OK(set_top_addr(ns1, ns2, ns3), "set top addresses"))
+		goto fail;
+
+	if (!ASSERT_OK(set_bottom_addr(ns1, ns2, ns3), "set bottom addresses"))
+		goto fail;
+
+	if (!ASSERT_OK(configure_ns1(ns1, vrf), "configure ns1 routes"))
+		goto fail;
+
+	if (!ASSERT_OK(configure_ns2(ns2, vrf), "configure ns2 routes"))
+		goto fail;
+
+	if (!ASSERT_OK(configure_ns3(ns3), "configure ns3 routes"))
+		goto fail;
+
+	/* Link bottom route to the GRE tunnels */
+	SYS(fail, "ip -n %s route add %s/32 dev veth5 via %s %s",
+	    ns1, IP4_ADDR_GRE, IP4_ADDR_6, vrf);
+	SYS(fail, "ip -n %s route add %s/32 dev veth7 via %s %s",
+	    ns2, IP4_ADDR_GRE, IP4_ADDR_8, vrf);
+	SYS(fail, "ip -n %s -6 route add %s/128 dev veth5 via %s %s",
+	    ns1, IP6_ADDR_GRE, IP6_ADDR_6, vrf);
+	SYS(fail, "ip -n %s -6 route add %s/128 dev veth7 via %s %s",
+	    ns2, IP6_ADDR_GRE, IP6_ADDR_8, vrf);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int remove_routes_to_gredev(const char *ns1, const char *ns2, const char *vrf)
+{
+	SYS(fail, "ip -n %s route del %s dev veth5 %s", ns1, IP4_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s route del %s dev veth7 %s", ns2, IP4_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s -6 route del %s/128 dev veth5 %s", ns1, IP6_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s -6 route del %s/128 dev veth7 %s", ns2, IP6_ADDR_GRE, vrf);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int add_unreachable_routes_to_gredev(const char *ns1, const char *ns2, const char *vrf)
+{
+	SYS(fail, "ip -n %s route add unreachable %s/32 %s", ns1, IP4_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s route add unreachable %s/32 %s", ns2, IP4_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s -6 route add unreachable %s/128 %s", ns1, IP6_ADDR_GRE, vrf);
+	SYS(fail, "ip -n %s -6 route add unreachable %s/128 %s", ns2, IP6_ADDR_GRE, vrf);
+
+	return 0;
+fail:
+	return -1;
+}
+
+#define GSO_SIZE 5000
+#define GSO_TCP_PORT 9000
+/* This tests the fix from commit ea0371f78799 ("net: fix GSO in bpf_lwt_push_ip_encap") */
+static int test_gso_fix(const char *ns1, const char *ns3, int family)
+{
+	const char *ip_addr = family == AF_INET ? IP4_ADDR_DST : IP6_ADDR_DST;
+	char gso_packet[GSO_SIZE] = {};
+	struct nstoken *nstoken = NULL;
+	int sfd, cfd, afd;
+	ssize_t bytes;
+	int ret = -1;
+
+	if (!ns1 || !ns3)
+		return ret;
+
+	nstoken = open_netns(ns3);
+	if (!ASSERT_OK_PTR(nstoken, "open ns3"))
+		return ret;
+
+	sfd = start_server_str(family, SOCK_STREAM, ip_addr, GSO_TCP_PORT, NULL);
+	if (!ASSERT_OK_FD(sfd, "start server"))
+		goto close_netns;
+
+	close_netns(nstoken);
+
+	nstoken = open_netns(ns1);
+	if (!ASSERT_OK_PTR(nstoken, "open ns1"))
+		goto close_server;
+
+	cfd = connect_to_addr_str(family, SOCK_STREAM, ip_addr, GSO_TCP_PORT, NULL);
+	if (!ASSERT_OK_FD(cfd, "connect to server"))
+		goto close_server;
+
+	close_netns(nstoken);
+	nstoken = NULL;
+
+	afd = accept(sfd, NULL, NULL);
+	if (!ASSERT_OK_FD(afd, "accept"))
+		goto close_client;
+
+	/* Send a packet larger than MTU */
+	bytes = send(cfd, gso_packet, GSO_SIZE, 0);
+	if (!ASSERT_EQ(bytes, GSO_SIZE, "send packet"))
+		goto close_accept;
+
+	/* Verify we received all expected bytes */
+	bytes = read(afd, gso_packet, GSO_SIZE);
+	if (!ASSERT_EQ(bytes, GSO_SIZE, "receive packet"))
+		goto close_accept;
+
+	ret = 0;
+
+close_accept:
+	close(afd);
+close_client:
+	close(cfd);
+close_server:
+	close(sfd);
+close_netns:
+	close_netns(nstoken);
+
+	return ret;
+}
+
+static int check_ping_ok(const char *ns1)
+{
+	SYS(fail, "ip netns exec %s ping -c 1 -W1 -I veth1 %s > /dev/null", ns1, IP4_ADDR_DST);
+	SYS(fail, "ip netns exec %s ping6 -c 1 -W1 -I veth1 %s > /dev/null", ns1, IP6_ADDR_DST);
+	return 0;
+fail:
+	return -1;
+}
+
+static int check_ping_fails(const char *ns1)
+{
+	int ret;
+
+	ret = SYS_NOFAIL("ip netns exec %s ping -c 1 -W1 -I veth1 %s", ns1, IP4_ADDR_DST);
+	if (!ret)
+		return -1;
+
+	ret = SYS_NOFAIL("ip netns exec %s ping6 -c 1 -W1 -I veth1 %s", ns1, IP6_ADDR_DST);
+	if (!ret)
+		return -1;
+
+	return 0;
+}
+
+#define EGRESS true
+#define INGRESS false
+#define IPV4_ENCAP true
+#define IPV6_ENCAP false
+static void lwt_ip_encap(bool ipv4_encap, bool egress, const char *vrf)
+{
+	char ns1[NETNS_NAME_SIZE] = NETNS_BASE "-1-";
+	char ns2[NETNS_NAME_SIZE] = NETNS_BASE "-2-";
+	char ns3[NETNS_NAME_SIZE] = NETNS_BASE "-3-";
+	char *sec = ipv4_encap ?  "encap_gre" : "encap_gre6";
+
+	if (!vrf)
+		return;
+
+	if (!ASSERT_OK(create_ns(ns1, NETNS_NAME_SIZE), "create ns1"))
+		goto out;
+	if (!ASSERT_OK(create_ns(ns2, NETNS_NAME_SIZE), "create ns2"))
+		goto out;
+	if (!ASSERT_OK(create_ns(ns3, NETNS_NAME_SIZE), "create ns3"))
+		goto out;
+
+	if (!ASSERT_OK(setup_network(ns1, ns2, ns3, vrf), "setup network"))
+		goto out;
+
+	/* By default, pings work */
+	if (!ASSERT_OK(check_ping_ok(ns1), "ping OK"))
+		goto out;
+
+	/* Remove NS2->DST routes, ping fails */
+	SYS(out, "ip -n %s    route del %s/32  dev veth3 %s", ns2, IP4_ADDR_DST, vrf);
+	SYS(out, "ip -n %s -6 route del %s/128 dev veth3 %s", ns2, IP6_ADDR_DST, vrf);
+	if (!ASSERT_OK(check_ping_fails(ns1), "ping expected fail"))
+		goto out;
+
+	/* Install replacement routes (LWT/eBPF), pings succeed */
+	if (egress) {
+		SYS(out, "ip -n %s route add %s encap bpf xmit obj %s sec %s dev veth1 %s",
+		    ns1, IP4_ADDR_DST, BPF_FILE, sec, vrf);
+		SYS(out, "ip -n %s -6 route add %s encap bpf xmit obj %s sec %s dev veth1 %s",
+		    ns1, IP6_ADDR_DST, BPF_FILE, sec, vrf);
+	} else {
+		SYS(out, "ip -n %s route add %s encap bpf in obj %s sec %s dev veth2 %s",
+		    ns2, IP4_ADDR_DST, BPF_FILE, sec, vrf);
+		SYS(out, "ip -n %s -6 route add %s encap bpf in obj %s sec %s dev veth2 %s",
+		    ns2, IP6_ADDR_DST, BPF_FILE, sec, vrf);
+	}
+
+	if (!ASSERT_OK(check_ping_ok(ns1), "ping OK"))
+		goto out;
+
+	/* Skip GSO tests with VRF: VRF routing needs properly assigned
+	 * source IP/device, which is easy to do with ping but hard with TCP.
+	 */
+	if (egress && !vrf[0]) {
+		if (!ASSERT_OK(test_gso_fix(ns1, ns3, AF_INET), "test GSO"))
+			goto out;
+	}
+
+	/* Negative test: remove routes to GRE devices: ping fails */
+	if (!ASSERT_OK(remove_routes_to_gredev(ns1, ns2, vrf), "remove routes to gredev"))
+		goto out;
+	if (!ASSERT_OK(check_ping_fails(ns1), "ping expected fail"))
+		goto out;
+
+	/* Another negative test */
+	if (!ASSERT_OK(add_unreachable_routes_to_gredev(ns1, ns2, vrf),
+		       "add unreachable routes"))
+		goto out;
+	ASSERT_OK(check_ping_fails(ns1), "ping expected fail");
+
+out:
+	SYS_NOFAIL("ip netns del %s", ns1);
+	SYS_NOFAIL("ip netns del %s", ns2);
+	SYS_NOFAIL("ip netns del %s", ns3);
+}
+
+void test_lwt_ip_encap_vrf_ipv6(void)
+{
+	if (test__start_subtest("egress"))
+		lwt_ip_encap(IPV6_ENCAP, EGRESS, "vrf red");
+
+	if (test__start_subtest("ingress"))
+		lwt_ip_encap(IPV6_ENCAP, INGRESS, "vrf red");
+}
+
+void test_lwt_ip_encap_vrf_ipv4(void)
+{
+	if (test__start_subtest("egress"))
+		lwt_ip_encap(IPV4_ENCAP, EGRESS, "vrf red");
+
+	if (test__start_subtest("ingress"))
+		lwt_ip_encap(IPV4_ENCAP, INGRESS, "vrf red");
+}
+
+void test_lwt_ip_encap_ipv6(void)
+{
+	if (test__start_subtest("egress"))
+		lwt_ip_encap(IPV6_ENCAP, EGRESS, "");
+
+	if (test__start_subtest("ingress"))
+		lwt_ip_encap(IPV6_ENCAP, INGRESS, "");
+}
+
+void test_lwt_ip_encap_ipv4(void)
+{
+	if (test__start_subtest("egress"))
+		lwt_ip_encap(IPV4_ENCAP, EGRESS, "");
+
+	if (test__start_subtest("ingress"))
+		lwt_ip_encap(IPV4_ENCAP, INGRESS, "");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c
new file mode 100644
index 000000000000..b6e8d822e8e9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lwt_redirect.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * Test suite of lwt_xmit BPF programs that redirect packets
+ *   The file tests focus not only if these programs work as expected normally,
+ *   but also if they can handle abnormal situations gracefully.
+ *
+ * WARNING
+ * -------
+ *  This test suite may crash the kernel, thus should be run in a VM.
+ *
+ * Setup:
+ * ---------
+ *  All tests are performed in a single netns. Two lwt encap routes are setup for
+ *  each subtest:
+ *
+ *    ip route add 10.0.0.0/24 encap bpf xmit <obj> sec "<ingress_sec>" dev link_err
+ *    ip route add 20.0.0.0/24 encap bpf xmit <obj> sec "<egress_sec>" dev link_err
+ *
+ *  Here <obj> is statically defined to test_lwt_redirect.bpf.o, and each section
+ *  of this object holds a program entry to test. The BPF object is built from
+ *  progs/test_lwt_redirect.c. We didn't use generated BPF skeleton since the
+ *  attachment for lwt programs are not supported by libbpf yet.
+ *
+ *  For testing, ping commands are run in the test netns:
+ *
+ *    ping 10.0.0.<ifindex> -c 1 -w 1 -s 100
+ *    ping 20.0.0.<ifindex> -c 1 -w 1 -s 100
+ *
+ * Scenarios:
+ * --------------------------------
+ *  1. Redirect to a running tap/tun device
+ *  2. Redirect to a down tap/tun device
+ *  3. Redirect to a vlan device with lower layer down
+ *
+ *  Case 1, ping packets should be received by packet socket on target device
+ *  when redirected to ingress, and by tun/tap fd when redirected to egress.
+ *
+ *  Case 2,3 are considered successful as long as they do not crash the kernel
+ *  as a regression.
+ *
+ *  Case 1,2 use tap device to test redirect to device that requires MAC
+ *  header, and tun device to test the case with no MAC header added.
+ */
+#include <sys/socket.h>
+#include <net/if.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_tun.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#define NETNS "ns_lwt_redirect"
+#include "lwt_helpers.h"
+#include "test_progs.h"
+#include "network_helpers.h"
+
+#define BPF_OBJECT            "test_lwt_redirect.bpf.o"
+#define INGRESS_SEC(need_mac) ((need_mac) ? "redir_ingress" : "redir_ingress_nomac")
+#define EGRESS_SEC(need_mac)  ((need_mac) ? "redir_egress" : "redir_egress_nomac")
+#define LOCAL_SRC             "10.0.0.1"
+#define CIDR_TO_INGRESS       "10.0.0.0/24"
+#define CIDR_TO_EGRESS        "20.0.0.0/24"
+
+/* ping to redirect toward given dev, with last byte of dest IP being the target
+ * device index.
+ *
+ * Note: ping command inside BPF-CI is busybox version, so it does not have certain
+ * function, such like -m option to set packet mark.
+ */
+static void ping_dev(const char *dev, bool is_ingress)
+{
+	int link_index = if_nametoindex(dev);
+	char ip[256];
+
+	if (!ASSERT_GE(link_index, 0, "if_nametoindex"))
+		return;
+
+	if (is_ingress)
+		snprintf(ip, sizeof(ip), "10.0.0.%d", link_index);
+	else
+		snprintf(ip, sizeof(ip), "20.0.0.%d", link_index);
+
+	/* We won't get a reply. Don't fail here */
+	SYS_NOFAIL("ping %s -c1 -W1 -s %d",
+		   ip, ICMP_PAYLOAD_SIZE);
+}
+
+static int new_packet_sock(const char *ifname)
+{
+	int err = 0;
+	int ignore_outgoing = 1;
+	int ifindex = -1;
+	int s = -1;
+
+	s = socket(AF_PACKET, SOCK_RAW, 0);
+	if (!ASSERT_GE(s, 0, "socket(AF_PACKET)"))
+		return -1;
+
+	ifindex = if_nametoindex(ifname);
+	if (!ASSERT_GE(ifindex, 0, "if_nametoindex")) {
+		close(s);
+		return -1;
+	}
+
+	struct sockaddr_ll addr = {
+		.sll_family = AF_PACKET,
+		.sll_protocol = htons(ETH_P_IP),
+		.sll_ifindex = ifindex,
+	};
+
+	err = bind(s, (struct sockaddr *)&addr, sizeof(addr));
+	if (!ASSERT_OK(err, "bind(AF_PACKET)")) {
+		close(s);
+		return -1;
+	}
+
+	/* Use packet socket to capture only the ingress, so we can distinguish
+	 * the case where a regression that actually redirects the packet to
+	 * the egress.
+	 */
+	err = setsockopt(s, SOL_PACKET, PACKET_IGNORE_OUTGOING,
+			 &ignore_outgoing, sizeof(ignore_outgoing));
+	if (!ASSERT_OK(err, "setsockopt(PACKET_IGNORE_OUTGOING)")) {
+		close(s);
+		return -1;
+	}
+
+	err = fcntl(s, F_SETFL, O_NONBLOCK);
+	if (!ASSERT_OK(err, "fcntl(O_NONBLOCK)")) {
+		close(s);
+		return -1;
+	}
+
+	return s;
+}
+
+static int expect_icmp(char *buf, ssize_t len)
+{
+	struct ethhdr *eth = (struct ethhdr *)buf;
+
+	if (len < (ssize_t)sizeof(*eth))
+		return -1;
+
+	if (eth->h_proto == htons(ETH_P_IP))
+		return __expect_icmp_ipv4((char *)(eth + 1), len - sizeof(*eth));
+
+	return -1;
+}
+
+static int expect_icmp_nomac(char *buf, ssize_t len)
+{
+	return __expect_icmp_ipv4(buf, len);
+}
+
+static void send_and_capture_test_packets(const char *test_name, int tap_fd,
+					  const char *target_dev, bool need_mac)
+{
+	int psock = -1;
+	struct timeval timeo = {
+		.tv_sec = 0,
+		.tv_usec = 250000,
+	};
+	int ret = -1;
+
+	filter_t filter = need_mac ? expect_icmp : expect_icmp_nomac;
+
+	ping_dev(target_dev, false);
+
+	ret = wait_for_packet(tap_fd, filter, &timeo);
+	if (!ASSERT_EQ(ret, 1, "wait_for_epacket")) {
+		log_err("%s egress test fails", test_name);
+		goto out;
+	}
+
+	psock = new_packet_sock(target_dev);
+	ping_dev(target_dev, true);
+
+	ret = wait_for_packet(psock, filter, &timeo);
+	if (!ASSERT_EQ(ret, 1, "wait_for_ipacket")) {
+		log_err("%s ingress test fails", test_name);
+		goto out;
+	}
+
+out:
+	if (psock >= 0)
+		close(psock);
+}
+
+static int setup_redirect_target(const char *target_dev, bool need_mac)
+{
+	int target_index = -1;
+	int tap_fd = -1;
+
+	tap_fd = open_tuntap(target_dev, need_mac);
+	if (!ASSERT_GE(tap_fd, 0, "open_tuntap"))
+		goto fail;
+
+	target_index = if_nametoindex(target_dev);
+	if (!ASSERT_GE(target_index, 0, "if_nametoindex"))
+		goto fail;
+
+	SYS(fail, "sysctl -w net.ipv6.conf.all.disable_ipv6=1");
+	SYS(fail, "ip link add link_err type dummy");
+	SYS(fail, "ip link set lo up");
+	SYS(fail, "ip addr add dev lo " LOCAL_SRC "/32");
+	SYS(fail, "ip link set link_err up");
+	SYS(fail, "ip link set %s up", target_dev);
+
+	SYS(fail, "ip route add %s dev link_err encap bpf xmit obj %s sec %s",
+	    CIDR_TO_INGRESS, BPF_OBJECT, INGRESS_SEC(need_mac));
+
+	SYS(fail, "ip route add %s dev link_err encap bpf xmit obj %s sec %s",
+	    CIDR_TO_EGRESS, BPF_OBJECT, EGRESS_SEC(need_mac));
+
+	return tap_fd;
+
+fail:
+	if (tap_fd >= 0)
+		close(tap_fd);
+	return -1;
+}
+
+static void test_lwt_redirect_normal(void)
+{
+	const char *target_dev = "tap0";
+	int tap_fd = -1;
+	bool need_mac = true;
+
+	tap_fd = setup_redirect_target(target_dev, need_mac);
+	if (!ASSERT_GE(tap_fd, 0, "setup_redirect_target"))
+		return;
+
+	send_and_capture_test_packets(__func__, tap_fd, target_dev, need_mac);
+	close(tap_fd);
+}
+
+static void test_lwt_redirect_normal_nomac(void)
+{
+	const char *target_dev = "tun0";
+	int tap_fd = -1;
+	bool need_mac = false;
+
+	tap_fd = setup_redirect_target(target_dev, need_mac);
+	if (!ASSERT_GE(tap_fd, 0, "setup_redirect_target"))
+		return;
+
+	send_and_capture_test_packets(__func__, tap_fd, target_dev, need_mac);
+	close(tap_fd);
+}
+
+/* This test aims to prevent regression of future. As long as the kernel does
+ * not panic, it is considered as success.
+ */
+static void __test_lwt_redirect_dev_down(bool need_mac)
+{
+	const char *target_dev = "tap0";
+	int tap_fd = -1;
+
+	tap_fd = setup_redirect_target(target_dev, need_mac);
+	if (!ASSERT_GE(tap_fd, 0, "setup_redirect_target"))
+		return;
+
+	SYS(out, "ip link set %s down", target_dev);
+	ping_dev(target_dev, true);
+	ping_dev(target_dev, false);
+
+out:
+	close(tap_fd);
+}
+
+static void test_lwt_redirect_dev_down(void)
+{
+	__test_lwt_redirect_dev_down(true);
+}
+
+static void test_lwt_redirect_dev_down_nomac(void)
+{
+	__test_lwt_redirect_dev_down(false);
+}
+
+/* This test aims to prevent regression of future. As long as the kernel does
+ * not panic, it is considered as success.
+ */
+static void test_lwt_redirect_dev_carrier_down(void)
+{
+	const char *lower_dev = "tap0";
+	const char *vlan_dev = "vlan100";
+	int tap_fd = -1;
+
+	tap_fd = setup_redirect_target(lower_dev, true);
+	if (!ASSERT_GE(tap_fd, 0, "setup_redirect_target"))
+		return;
+
+	SYS(out, "ip link add vlan100 link %s type vlan id 100", lower_dev);
+	SYS(out, "ip link set %s up", vlan_dev);
+	SYS(out, "ip link set %s down", lower_dev);
+	ping_dev(vlan_dev, true);
+	ping_dev(vlan_dev, false);
+
+out:
+	close(tap_fd);
+}
+
+static void *test_lwt_redirect_run(void *arg)
+{
+	netns_delete();
+	RUN_TEST(lwt_redirect_normal);
+	RUN_TEST(lwt_redirect_normal_nomac);
+	RUN_TEST(lwt_redirect_dev_down);
+	RUN_TEST(lwt_redirect_dev_down_nomac);
+	RUN_TEST(lwt_redirect_dev_carrier_down);
+	return NULL;
+}
+
+void test_lwt_redirect(void)
+{
+	pthread_t test_thread;
+	int err;
+
+	/* Run the tests in their own thread to isolate the namespace changes
+	 * so they do not affect the environment of other tests.
+	 * (specifically needed because of unshare(CLONE_NEWNS) in open_netns())
+	 */
+	err = pthread_create(&test_thread, NULL, &test_lwt_redirect_run, NULL);
+	if (ASSERT_OK(err, "pthread_create"))
+		ASSERT_OK(pthread_join(test_thread, NULL), "pthread_join");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_reroute.c b/tools/testing/selftests/bpf/prog_tests/lwt_reroute.c
new file mode 100644
index 000000000000..6c50c0f63f43
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lwt_reroute.c
@@ -0,0 +1,264 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * Test suite of lwt BPF programs that reroutes packets
+ *   The file tests focus not only if these programs work as expected normally,
+ *   but also if they can handle abnormal situations gracefully. This test
+ *   suite currently only covers lwt_xmit hook. lwt_in tests have not been
+ *   implemented.
+ *
+ * WARNING
+ * -------
+ *  This test suite can crash the kernel, thus should be run in a VM.
+ *
+ * Setup:
+ * ---------
+ *  all tests are performed in a single netns. A lwt encap route is setup for
+ *  each subtest:
+ *
+ *    ip route add 10.0.0.0/24 encap bpf xmit <obj> sec "<section_N>" dev link_err
+ *
+ *  Here <obj> is statically defined to test_lwt_reroute.bpf.o, and it contains
+ *  a single test program entry. This program sets packet mark by last byte of
+ *  the IPv4 daddr. For example, a packet going to 1.2.3.4 will receive a skb
+ *  mark 4. A packet will only be marked once, and IP x.x.x.0 will be skipped
+ *  to avoid route loop. We didn't use generated BPF skeleton since the
+ *  attachment for lwt programs are not supported by libbpf yet.
+ *
+ *  The test program will bring up a tun device, and sets up the following
+ *  routes:
+ *
+ *    ip rule add pref 100 from all fwmark <tun_index> lookup 100
+ *    ip route add table 100 default dev tun0
+ *
+ *  For normal testing, a ping command is running in the test netns:
+ *
+ *    ping 10.0.0.<tun_index> -c 1 -w 1 -s 100
+ *
+ *  For abnormal testing, fq is used as the qdisc of the tun device. Then a UDP
+ *  socket will try to overflow the fq queue and trigger qdisc drop error.
+ *
+ * Scenarios:
+ * --------------------------------
+ *  1. Reroute to a running tun device
+ *  2. Reroute to a device where qdisc drop
+ *
+ *  For case 1, ping packets should be received by the tun device.
+ *
+ *  For case 2, force UDP packets to overflow fq limit. As long as kernel
+ *  is not crashed, it is considered successful.
+ */
+#define NETNS "ns_lwt_reroute"
+#include <netinet/in.h>
+#include "lwt_helpers.h"
+#include "network_helpers.h"
+#include <linux/net_tstamp.h>
+
+#define BPF_OBJECT            "test_lwt_reroute.bpf.o"
+#define LOCAL_SRC             "10.0.0.1"
+#define TEST_CIDR             "10.0.0.0/24"
+#define XMIT_HOOK             "xmit"
+#define XMIT_SECTION          "lwt_xmit"
+#define NSEC_PER_SEC          1000000000ULL
+
+/* send a ping to be rerouted to the target device */
+static void ping_once(const char *ip)
+{
+	/* We won't get a reply. Don't fail here */
+	SYS_NOFAIL("ping %s -c1 -W1 -s %d",
+		   ip, ICMP_PAYLOAD_SIZE);
+}
+
+/* Send snd_target UDP packets to overflow the fq queue and trigger qdisc drop
+ * error. This is done via TX tstamp to force buffering delayed packets.
+ */
+static int overflow_fq(int snd_target, const char *target_ip)
+{
+	struct sockaddr_in addr = {
+		.sin_family = AF_INET,
+		.sin_port = htons(1234),
+	};
+
+	char data_buf[8]; /* only #pkts matter, so use a random small buffer */
+	char control_buf[CMSG_SPACE(sizeof(uint64_t))];
+	struct iovec iov = {
+		.iov_base = data_buf,
+		.iov_len = sizeof(data_buf),
+	};
+	int err = -1;
+	int s = -1;
+	struct sock_txtime txtime_on = {
+		.clockid = CLOCK_MONOTONIC,
+		.flags = 0,
+	};
+	struct msghdr msg = {
+		.msg_name = &addr,
+		.msg_namelen = sizeof(addr),
+		.msg_control = control_buf,
+		.msg_controllen = sizeof(control_buf),
+		.msg_iovlen = 1,
+		.msg_iov = &iov,
+	};
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+
+	memset(data_buf, 0, sizeof(data_buf));
+
+	s = socket(AF_INET, SOCK_DGRAM, 0);
+	if (!ASSERT_GE(s, 0, "socket"))
+		goto out;
+
+	err = setsockopt(s, SOL_SOCKET, SO_TXTIME, &txtime_on, sizeof(txtime_on));
+	if (!ASSERT_OK(err, "setsockopt(SO_TXTIME)"))
+		goto out;
+
+	err = inet_pton(AF_INET, target_ip, &addr.sin_addr);
+	if (!ASSERT_EQ(err, 1, "inet_pton"))
+		goto out;
+
+	while (snd_target > 0) {
+		struct timespec now;
+
+		memset(control_buf, 0, sizeof(control_buf));
+		cmsg->cmsg_type = SCM_TXTIME;
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(uint64_t));
+
+		err = clock_gettime(CLOCK_MONOTONIC, &now);
+		if (!ASSERT_OK(err, "clock_gettime(CLOCK_MONOTONIC)")) {
+			err = -1;
+			goto out;
+		}
+
+		*(uint64_t *)CMSG_DATA(cmsg) = (now.tv_nsec + 1) * NSEC_PER_SEC +
+					       now.tv_nsec;
+
+		/* we will intentionally send more than fq limit, so ignore
+		 * the error here.
+		 */
+		sendmsg(s, &msg, MSG_NOSIGNAL);
+		snd_target--;
+	}
+
+	/* no kernel crash so far is considered success */
+	err = 0;
+
+out:
+	if (s >= 0)
+		close(s);
+
+	return err;
+}
+
+static int setup(const char *tun_dev)
+{
+	int target_index = -1;
+	int tap_fd = -1;
+
+	tap_fd = open_tuntap(tun_dev, false);
+	if (!ASSERT_GE(tap_fd, 0, "open_tun"))
+		return -1;
+
+	target_index = if_nametoindex(tun_dev);
+	if (!ASSERT_GE(target_index, 0, "if_nametoindex"))
+		return -1;
+
+	SYS(fail, "ip link add link_err type dummy");
+	SYS(fail, "ip link set lo up");
+	SYS(fail, "ip addr add dev lo " LOCAL_SRC "/32");
+	SYS(fail, "ip link set link_err up");
+	SYS(fail, "ip link set %s up", tun_dev);
+
+	SYS(fail, "ip route add %s dev link_err encap bpf xmit obj %s sec lwt_xmit",
+	    TEST_CIDR, BPF_OBJECT);
+
+	SYS(fail, "ip rule add pref 100 from all fwmark %d lookup 100",
+	    target_index);
+	SYS(fail, "ip route add t 100 default dev %s", tun_dev);
+
+	return tap_fd;
+
+fail:
+	if (tap_fd >= 0)
+		close(tap_fd);
+	return -1;
+}
+
+static void test_lwt_reroute_normal_xmit(void)
+{
+	const char *tun_dev = "tun0";
+	int tun_fd = -1;
+	int ifindex = -1;
+	char ip[256];
+	struct timeval timeo = {
+		.tv_sec = 0,
+		.tv_usec = 250000,
+	};
+
+	tun_fd = setup(tun_dev);
+	if (!ASSERT_GE(tun_fd, 0, "setup_reroute"))
+		return;
+
+	ifindex = if_nametoindex(tun_dev);
+	if (!ASSERT_GE(ifindex, 0, "if_nametoindex"))
+		return;
+
+	snprintf(ip, 256, "10.0.0.%d", ifindex);
+
+	/* ping packets should be received by the tun device */
+	ping_once(ip);
+
+	if (!ASSERT_EQ(wait_for_packet(tun_fd, __expect_icmp_ipv4, &timeo), 1,
+		       "wait_for_packet"))
+		log_err("%s xmit", __func__);
+}
+
+/*
+ * Test the failure case when the skb is dropped at the qdisc. This is a
+ * regression prevention at the xmit hook only.
+ */
+static void test_lwt_reroute_qdisc_dropped(void)
+{
+	const char *tun_dev = "tun0";
+	int tun_fd = -1;
+	int ifindex = -1;
+	char ip[256];
+
+	tun_fd = setup(tun_dev);
+	if (!ASSERT_GE(tun_fd, 0, "setup_reroute"))
+		goto fail;
+
+	SYS(fail, "tc qdisc replace dev %s root fq limit 5 flow_limit 5", tun_dev);
+
+	ifindex = if_nametoindex(tun_dev);
+	if (!ASSERT_GE(ifindex, 0, "if_nametoindex"))
+		return;
+
+	snprintf(ip, 256, "10.0.0.%d", ifindex);
+	ASSERT_EQ(overflow_fq(10, ip), 0, "overflow_fq");
+
+fail:
+	if (tun_fd >= 0)
+		close(tun_fd);
+}
+
+static void *test_lwt_reroute_run(void *arg)
+{
+	netns_delete();
+	RUN_TEST(lwt_reroute_normal_xmit);
+	RUN_TEST(lwt_reroute_qdisc_dropped);
+	return NULL;
+}
+
+void test_lwt_reroute(void)
+{
+	pthread_t test_thread;
+	int err;
+
+	/* Run the tests in their own thread to isolate the namespace changes
+	 * so they do not affect the environment of other tests.
+	 * (specifically needed because of unshare(CLONE_NEWNS) in open_netns())
+	 */
+	err = pthread_create(&test_thread, NULL, &test_lwt_reroute_run, NULL);
+	if (ASSERT_OK(err, "pthread_create"))
+		ASSERT_OK(pthread_join(test_thread, NULL), "pthread_join");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c b/tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c
new file mode 100644
index 000000000000..3bc730b7c7fa
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lwt_seg6local.c
@@ -0,0 +1,176 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/* Connects 6 network namespaces through veths.
+ * Each NS may have different IPv6 global scope addresses :
+ *
+ *          NS1            NS2             NS3              NS4               NS5             NS6
+ *      lo  veth1 <-> veth2 veth3 <-> veth4 veth5 <-> veth6 lo veth7 <-> veth8 veth9 <-> veth10 lo
+ * fb00 ::1  ::12      ::21  ::34      ::43  ::56      ::65     ::78      ::87  ::910     ::109  ::6
+ * fd00                                                                                          ::4
+ * fc42                                                     ::1
+ *
+ * All IPv6 packets going to fb00::/16 through NS2 will be encapsulated in a
+ * IPv6 header with a Segment Routing Header, with segments :
+ *	fd00::1 -> fd00::2 -> fd00::3 -> fd00::4
+ *
+ * 3 fd00::/16 IPv6 addresses are binded to seg6local End.BPF actions :
+ * - fd00::1 : add a TLV, change the flags and apply a End.X action to fc42::1
+ * - fd00::2 : remove the TLV, change the flags, add a tag
+ * - fd00::3 : apply an End.T action to fd00::4, through routing table 117
+ *
+ * fd00::4 is a simple Segment Routing node decapsulating the inner IPv6 packet.
+ * Each End.BPF action will validate the operations applied on the SRH by the
+ * previous BPF program in the chain, otherwise the packet is dropped.
+ *
+ * An UDP datagram is sent from fb00::1 to fb00::6. The test succeeds if this
+ * datagram can be read on NS6 when binding to fb00::6.
+ */
+
+#include "network_helpers.h"
+#include "test_progs.h"
+
+#define NETNS_BASE "lwt-seg6local-"
+#define BPF_FILE "test_lwt_seg6local.bpf.o"
+
+static void cleanup(void)
+{
+	int ns;
+
+	for (ns = 1; ns < 7; ns++)
+		SYS_NOFAIL("ip netns del %s%d", NETNS_BASE, ns);
+}
+
+static int setup(void)
+{
+	int ns;
+
+	for (ns = 1; ns < 7; ns++)
+		SYS(fail, "ip netns add %s%d", NETNS_BASE, ns);
+
+	SYS(fail, "ip -n %s6 link set dev lo up", NETNS_BASE);
+
+	for (ns = 1; ns < 6; ns++) {
+		int local_id = ns * 2 - 1;
+		int peer_id = ns * 2;
+		int next_ns = ns + 1;
+
+		SYS(fail, "ip -n %s%d link add veth%d type veth peer name veth%d netns %s%d",
+		    NETNS_BASE, ns, local_id, peer_id, NETNS_BASE, next_ns);
+
+		SYS(fail, "ip -n %s%d link set dev veth%d up", NETNS_BASE, ns, local_id);
+		SYS(fail, "ip -n %s%d link set dev veth%d up", NETNS_BASE, next_ns, peer_id);
+
+		/* All link scope addresses to veths */
+		SYS(fail, "ip -n %s%d -6 addr add fb00::%d%d/16 dev veth%d scope link",
+		    NETNS_BASE, ns, local_id, peer_id, local_id);
+		SYS(fail, "ip -n %s%d -6 addr add fb00::%d%d/16 dev veth%d scope link",
+		    NETNS_BASE, next_ns, peer_id, local_id, peer_id);
+	}
+
+
+	SYS(fail, "ip -n %s5 -6 route add fb00::109 table 117 dev veth9 scope link", NETNS_BASE);
+
+	SYS(fail, "ip -n %s1 -6 addr add fb00::1/16 dev lo", NETNS_BASE);
+	SYS(fail, "ip -n %s1 -6 route add fb00::6 dev veth1 via fb00::21", NETNS_BASE);
+
+	SYS(fail, "ip -n %s2 -6 route add fb00::6 encap bpf in obj %s sec encap_srh dev veth2",
+	    NETNS_BASE, BPF_FILE);
+	SYS(fail, "ip -n %s2 -6 route add fd00::1 dev veth3 via fb00::43 scope link", NETNS_BASE);
+
+	SYS(fail, "ip -n %s3 -6 route add fc42::1 dev veth5 via fb00::65", NETNS_BASE);
+	SYS(fail,
+	    "ip -n %s3 -6 route add fd00::1 encap seg6local action End.BPF endpoint obj %s sec add_egr_x dev veth4",
+	    NETNS_BASE, BPF_FILE);
+
+	SYS(fail,
+	    "ip -n %s4 -6 route add fd00::2 encap seg6local action End.BPF endpoint obj %s sec pop_egr dev veth6",
+	    NETNS_BASE, BPF_FILE);
+	SYS(fail, "ip -n %s4 -6 addr add fc42::1 dev lo", NETNS_BASE);
+	SYS(fail, "ip -n %s4 -6 route add fd00::3 dev veth7 via fb00::87", NETNS_BASE);
+
+	SYS(fail, "ip -n %s5 -6 route add fd00::4 table 117 dev veth9 via fb00::109", NETNS_BASE);
+	SYS(fail,
+	    "ip -n %s5 -6 route add fd00::3 encap seg6local action End.BPF endpoint obj %s sec inspect_t dev veth8",
+	    NETNS_BASE, BPF_FILE);
+
+	SYS(fail, "ip -n %s6 -6 addr add fb00::6/16 dev lo", NETNS_BASE);
+	SYS(fail, "ip -n %s6 -6 addr add fd00::4/16 dev lo", NETNS_BASE);
+
+	for (ns = 1; ns < 6; ns++)
+		SYS(fail, "ip netns exec %s%d sysctl -wq net.ipv6.conf.all.forwarding=1",
+		    NETNS_BASE, ns);
+
+	SYS(fail, "ip netns exec %s6 sysctl -wq net.ipv6.conf.all.seg6_enabled=1", NETNS_BASE);
+	SYS(fail, "ip netns exec %s6 sysctl -wq net.ipv6.conf.lo.seg6_enabled=1", NETNS_BASE);
+	SYS(fail, "ip netns exec %s6 sysctl -wq net.ipv6.conf.veth10.seg6_enabled=1", NETNS_BASE);
+
+	return 0;
+fail:
+	return -1;
+}
+
+#define SERVER_PORT 7330
+#define CLIENT_PORT 2121
+void test_lwt_seg6local(void)
+{
+	struct sockaddr_in6 server_addr = {};
+	const char *ns1 = NETNS_BASE "1";
+	const char *ns6 = NETNS_BASE "6";
+	struct nstoken *nstoken = NULL;
+	const char *foobar = "foobar";
+	ssize_t bytes;
+	int sfd, cfd;
+	char buf[7];
+
+	if (!ASSERT_OK(setup(), "setup"))
+		goto out;
+
+	nstoken = open_netns(ns6);
+	if (!ASSERT_OK_PTR(nstoken, "open ns6"))
+		goto out;
+
+	sfd = start_server_str(AF_INET6, SOCK_DGRAM, "fb00::6", SERVER_PORT, NULL);
+	if (!ASSERT_OK_FD(sfd, "start server"))
+		goto close_netns;
+
+	close_netns(nstoken);
+
+	nstoken = open_netns(ns1);
+	if (!ASSERT_OK_PTR(nstoken, "open ns1"))
+		goto close_server;
+
+	cfd = start_server_str(AF_INET6, SOCK_DGRAM, "fb00::1", CLIENT_PORT, NULL);
+	if (!ASSERT_OK_FD(cfd, "start client"))
+		goto close_server;
+
+	close_netns(nstoken);
+	nstoken = NULL;
+
+	/* Send a packet larger than MTU */
+	server_addr.sin6_family = AF_INET6;
+	server_addr.sin6_port = htons(SERVER_PORT);
+	if (!ASSERT_EQ(inet_pton(AF_INET6, "fb00::6", &server_addr.sin6_addr), 1,
+		       "build target addr"))
+		goto close_client;
+
+	bytes = sendto(cfd, foobar, sizeof(foobar), 0,
+		       (struct sockaddr *)&server_addr, sizeof(server_addr));
+	if (!ASSERT_EQ(bytes, sizeof(foobar), "send packet"))
+		goto close_client;
+
+	/* Verify we received all expected bytes */
+	bytes = read(sfd, buf, sizeof(buf));
+	if (!ASSERT_EQ(bytes, sizeof(buf), "receive packet"))
+		goto close_client;
+	ASSERT_STREQ(buf, foobar, "check udp packet");
+
+close_client:
+	close(cfd);
+close_server:
+	close(sfd);
+close_netns:
+	close_netns(nstoken);
+
+out:
+	cleanup();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_btf.c b/tools/testing/selftests/bpf/prog_tests/map_btf.c
new file mode 100644
index 000000000000..2c4ef6037573
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_btf.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <test_progs.h>
+
+#include "normal_map_btf.skel.h"
+#include "map_in_map_btf.skel.h"
+
+static void do_test_normal_map_btf(void)
+{
+	struct normal_map_btf *skel;
+	int i, err, new_fd = -1;
+	int map_fd_arr[64];
+
+	skel = normal_map_btf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_load"))
+		return;
+
+	err = normal_map_btf__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto out;
+
+	skel->bss->pid = getpid();
+	usleep(1);
+	ASSERT_TRUE(skel->bss->done, "done");
+
+	/* Use percpu_array to slow bpf_map_free_deferred() down.
+	 * The memory allocation may fail, so doesn't check the returned fd.
+	 */
+	for (i = 0; i < ARRAY_SIZE(map_fd_arr); i++)
+		map_fd_arr[i] = bpf_map_create(BPF_MAP_TYPE_PERCPU_ARRAY, NULL, 4, 4, 256, NULL);
+
+	/* Close array fd later */
+	new_fd = dup(bpf_map__fd(skel->maps.array));
+out:
+	normal_map_btf__destroy(skel);
+	if (new_fd < 0)
+		return;
+	/* Use kern_sync_rcu() to wait for the start of the free of the bpf
+	 * program and use an assumed delay to wait for the release of the map
+	 * btf which is held by other maps (e.g, bss). After that, array map
+	 * holds the last reference of map btf.
+	 */
+	kern_sync_rcu();
+	usleep(4000);
+	/* Spawn multiple kworkers to delay the invocation of
+	 * bpf_map_free_deferred() for array map.
+	 */
+	for (i = 0; i < ARRAY_SIZE(map_fd_arr); i++) {
+		if (map_fd_arr[i] < 0)
+			continue;
+		close(map_fd_arr[i]);
+	}
+	close(new_fd);
+}
+
+static void do_test_map_in_map_btf(void)
+{
+	int err, zero = 0, new_fd = -1;
+	struct map_in_map_btf *skel;
+
+	skel = map_in_map_btf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_load"))
+		return;
+
+	err = map_in_map_btf__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto out;
+
+	skel->bss->pid = getpid();
+	usleep(1);
+	ASSERT_TRUE(skel->bss->done, "done");
+
+	/* Close inner_array fd later */
+	new_fd = dup(bpf_map__fd(skel->maps.inner_array));
+	/* Defer the free of inner_array */
+	err = bpf_map__delete_elem(skel->maps.outer_array, &zero, sizeof(zero), 0);
+	ASSERT_OK(err, "delete inner map");
+out:
+	map_in_map_btf__destroy(skel);
+	if (new_fd < 0)
+		return;
+	/* Use kern_sync_rcu() to wait for the start of the free of the bpf
+	 * program and use an assumed delay to wait for the free of the outer
+	 * map and the release of map btf. After that, inner map holds the last
+	 * reference of map btf.
+	 */
+	kern_sync_rcu();
+	usleep(10000);
+	close(new_fd);
+}
+
+void test_map_btf(void)
+{
+	if (test__start_subtest("array_btf"))
+		do_test_normal_map_btf();
+	if (test__start_subtest("inner_array_btf"))
+		do_test_map_in_map_btf();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_excl.c b/tools/testing/selftests/bpf/prog_tests/map_excl.c
new file mode 100644
index 000000000000..6bdc6d6de0da
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_excl.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Google LLC. */
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "map_excl.skel.h"
+
+static void test_map_excl_allowed(void)
+{
+	struct map_excl *skel = map_excl__open();
+	int err;
+
+	err = bpf_map__set_exclusive_program(skel->maps.excl_map, skel->progs.should_have_access);
+	if (!ASSERT_OK(err, "bpf_map__set_exclusive_program"))
+		goto out;
+
+	bpf_program__set_autoload(skel->progs.should_have_access, true);
+	bpf_program__set_autoload(skel->progs.should_not_have_access, false);
+
+	err = map_excl__load(skel);
+	ASSERT_OK(err, "map_excl__load");
+out:
+	map_excl__destroy(skel);
+}
+
+static void test_map_excl_denied(void)
+{
+	struct map_excl *skel = map_excl__open();
+	int err;
+
+	err = bpf_map__set_exclusive_program(skel->maps.excl_map, skel->progs.should_have_access);
+	if (!ASSERT_OK(err, "bpf_map__make_exclusive"))
+		goto out;
+
+	bpf_program__set_autoload(skel->progs.should_have_access, false);
+	bpf_program__set_autoload(skel->progs.should_not_have_access, true);
+
+	err = map_excl__load(skel);
+	ASSERT_EQ(err, -EACCES, "exclusive map access not denied\n");
+out:
+	map_excl__destroy(skel);
+
+}
+
+void test_map_excl(void)
+{
+	if (test__start_subtest("map_excl_allowed"))
+		test_map_excl_allowed();
+	if (test__start_subtest("map_excl_denied"))
+		test_map_excl_denied();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_in_map.c b/tools/testing/selftests/bpf/prog_tests/map_in_map.c
new file mode 100644
index 000000000000..286a9fb469e2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_in_map.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "access_map_in_map.skel.h"
+#include "update_map_in_htab.skel.h"
+
+struct thread_ctx {
+	pthread_barrier_t barrier;
+	int outer_map_fd;
+	int start, abort;
+	int loop, err;
+};
+
+static int wait_for_start_or_abort(struct thread_ctx *ctx)
+{
+	while (!ctx->start && !ctx->abort)
+		usleep(1);
+	return ctx->abort ? -1 : 0;
+}
+
+static void *update_map_fn(void *data)
+{
+	struct thread_ctx *ctx = data;
+	int loop = ctx->loop, err = 0;
+
+	if (wait_for_start_or_abort(ctx) < 0)
+		return NULL;
+	pthread_barrier_wait(&ctx->barrier);
+
+	while (loop-- > 0) {
+		int fd, zero = 0;
+
+		fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 4, 1, NULL);
+		if (fd < 0) {
+			err |= 1;
+			pthread_barrier_wait(&ctx->barrier);
+			continue;
+		}
+
+		/* Remove the old inner map */
+		if (bpf_map_update_elem(ctx->outer_map_fd, &zero, &fd, 0) < 0)
+			err |= 2;
+		close(fd);
+		pthread_barrier_wait(&ctx->barrier);
+	}
+
+	ctx->err = err;
+
+	return NULL;
+}
+
+static void *access_map_fn(void *data)
+{
+	struct thread_ctx *ctx = data;
+	int loop = ctx->loop;
+
+	if (wait_for_start_or_abort(ctx) < 0)
+		return NULL;
+	pthread_barrier_wait(&ctx->barrier);
+
+	while (loop-- > 0) {
+		/* Access the old inner map */
+		syscall(SYS_getpgid);
+		pthread_barrier_wait(&ctx->barrier);
+	}
+
+	return NULL;
+}
+
+static void test_map_in_map_access(const char *prog_name, const char *map_name)
+{
+	struct access_map_in_map *skel;
+	struct bpf_map *outer_map;
+	struct bpf_program *prog;
+	struct thread_ctx ctx;
+	pthread_t tid[2];
+	int err;
+
+	skel = access_map_in_map__open();
+	if (!ASSERT_OK_PTR(skel, "access_map_in_map open"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "find program"))
+		goto out;
+	bpf_program__set_autoload(prog, true);
+
+	outer_map = bpf_object__find_map_by_name(skel->obj, map_name);
+	if (!ASSERT_OK_PTR(outer_map, "find map"))
+		goto out;
+
+	err = access_map_in_map__load(skel);
+	if (!ASSERT_OK(err, "access_map_in_map load"))
+		goto out;
+
+	err = access_map_in_map__attach(skel);
+	if (!ASSERT_OK(err, "access_map_in_map attach"))
+		goto out;
+
+	skel->bss->tgid = getpid();
+
+	memset(&ctx, 0, sizeof(ctx));
+	pthread_barrier_init(&ctx.barrier, NULL, 2);
+	ctx.outer_map_fd = bpf_map__fd(outer_map);
+	ctx.loop = 4;
+
+	err = pthread_create(&tid[0], NULL, update_map_fn, &ctx);
+	if (!ASSERT_OK(err, "close_thread"))
+		goto out;
+
+	err = pthread_create(&tid[1], NULL, access_map_fn, &ctx);
+	if (!ASSERT_OK(err, "read_thread")) {
+		ctx.abort = 1;
+		pthread_join(tid[0], NULL);
+		goto out;
+	}
+
+	ctx.start = 1;
+	pthread_join(tid[0], NULL);
+	pthread_join(tid[1], NULL);
+
+	ASSERT_OK(ctx.err, "err");
+out:
+	access_map_in_map__destroy(skel);
+}
+
+static void add_del_fd_htab(int outer_fd)
+{
+	int inner_fd, err;
+	int key = 1;
+
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr1", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner1"))
+		return;
+	err = bpf_map_update_elem(outer_fd, &key, &inner_fd, BPF_NOEXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "add"))
+		return;
+
+	/* Delete */
+	err = bpf_map_delete_elem(outer_fd, &key);
+	ASSERT_OK(err, "del");
+}
+
+static void overwrite_fd_htab(int outer_fd)
+{
+	int inner_fd, err;
+	int key = 1;
+
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr1", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner1"))
+		return;
+	err = bpf_map_update_elem(outer_fd, &key, &inner_fd, BPF_NOEXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "add"))
+		return;
+
+	/* Overwrite */
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr2", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner2"))
+		goto out;
+	err = bpf_map_update_elem(outer_fd, &key, &inner_fd, BPF_EXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "overwrite"))
+		goto out;
+
+	err = bpf_map_delete_elem(outer_fd, &key);
+	ASSERT_OK(err, "del");
+	return;
+out:
+	bpf_map_delete_elem(outer_fd, &key);
+}
+
+static void lookup_delete_fd_htab(int outer_fd)
+{
+	int key = 1, value;
+	int inner_fd, err;
+
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr1", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner1"))
+		return;
+	err = bpf_map_update_elem(outer_fd, &key, &inner_fd, BPF_NOEXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "add"))
+		return;
+
+	/* lookup_and_delete is not supported for htab of maps */
+	err = bpf_map_lookup_and_delete_elem(outer_fd, &key, &value);
+	ASSERT_EQ(err, -ENOTSUPP, "lookup_del");
+
+	err = bpf_map_delete_elem(outer_fd, &key);
+	ASSERT_OK(err, "del");
+}
+
+static void batched_lookup_delete_fd_htab(int outer_fd)
+{
+	int keys[2] = {1, 2}, values[2];
+	unsigned int cnt, batch;
+	int inner_fd, err;
+
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr1", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner1"))
+		return;
+
+	err = bpf_map_update_elem(outer_fd, &keys[0], &inner_fd, BPF_NOEXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "add1"))
+		return;
+
+	inner_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "arr2", 4, 4, 1, NULL);
+	if (!ASSERT_OK_FD(inner_fd, "inner2"))
+		goto out;
+	err = bpf_map_update_elem(outer_fd, &keys[1], &inner_fd, BPF_NOEXIST);
+	close(inner_fd);
+	if (!ASSERT_OK(err, "add2"))
+		goto out;
+
+	/* batched lookup_and_delete */
+	cnt = ARRAY_SIZE(keys);
+	err = bpf_map_lookup_and_delete_batch(outer_fd, NULL, &batch, keys, values, &cnt, NULL);
+	ASSERT_TRUE((!err || err == -ENOENT), "delete_batch ret");
+	ASSERT_EQ(cnt, ARRAY_SIZE(keys), "delete_batch cnt");
+
+out:
+	bpf_map_delete_elem(outer_fd, &keys[0]);
+}
+
+static void test_update_map_in_htab(bool preallocate)
+{
+	struct update_map_in_htab *skel;
+	int err, fd;
+
+	skel = update_map_in_htab__open();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	err = update_map_in_htab__load(skel);
+	if (!ASSERT_OK(err, "load"))
+		goto out;
+
+	fd = preallocate ? bpf_map__fd(skel->maps.outer_htab_map) :
+			   bpf_map__fd(skel->maps.outer_alloc_htab_map);
+
+	add_del_fd_htab(fd);
+	overwrite_fd_htab(fd);
+	lookup_delete_fd_htab(fd);
+	batched_lookup_delete_fd_htab(fd);
+out:
+	update_map_in_htab__destroy(skel);
+}
+
+void test_map_in_map(void)
+{
+	if (test__start_subtest("acc_map_in_array"))
+		test_map_in_map_access("access_map_in_array", "outer_array_map");
+	if (test__start_subtest("sleepable_acc_map_in_array"))
+		test_map_in_map_access("sleepable_access_map_in_array", "outer_array_map");
+	if (test__start_subtest("acc_map_in_htab"))
+		test_map_in_map_access("access_map_in_htab", "outer_htab_map");
+	if (test__start_subtest("sleepable_acc_map_in_htab"))
+		test_map_in_map_access("sleepable_access_map_in_htab", "outer_htab_map");
+	if (test__start_subtest("update_map_in_htab"))
+		test_update_map_in_htab(true);
+	if (test__start_subtest("update_map_in_alloc_htab"))
+		test_update_map_in_htab(false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_init.c b/tools/testing/selftests/bpf/prog_tests/map_init.c
new file mode 100644
index 000000000000..14a31109dd0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_init.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Tessares SA <http://www.tessares.net> */
+
+#include <test_progs.h>
+#include "test_map_init.skel.h"
+
+#define TEST_VALUE 0x1234
+#define FILL_VALUE 0xdeadbeef
+
+static int nr_cpus;
+static int duration;
+
+typedef unsigned long long map_key_t;
+typedef unsigned long long map_value_t;
+typedef struct {
+	map_value_t v; /* padding */
+} __bpf_percpu_val_align pcpu_map_value_t;
+
+
+static int map_populate(int map_fd, int num)
+{
+	pcpu_map_value_t value[nr_cpus];
+	int i, err;
+	map_key_t key;
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(value, i) = FILL_VALUE;
+
+	for (key = 1; key <= num; key++) {
+		err = bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static struct test_map_init *setup(enum bpf_map_type map_type, int map_sz,
+			    int *map_fd, int populate)
+{
+	struct test_map_init *skel;
+	int err;
+
+	skel = test_map_init__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return NULL;
+
+	err = bpf_map__set_type(skel->maps.hashmap1, map_type);
+	if (!ASSERT_OK(err, "bpf_map__set_type"))
+		goto error;
+
+	err = bpf_map__set_max_entries(skel->maps.hashmap1, map_sz);
+	if (!ASSERT_OK(err, "bpf_map__set_max_entries"))
+		goto error;
+
+	err = test_map_init__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto error;
+
+	*map_fd = bpf_map__fd(skel->maps.hashmap1);
+	if (CHECK(*map_fd < 0, "bpf_map__fd", "failed\n"))
+		goto error;
+
+	err = map_populate(*map_fd, populate);
+	if (!ASSERT_OK(err, "map_populate"))
+		goto error_map;
+
+	return skel;
+
+error_map:
+	close(*map_fd);
+error:
+	test_map_init__destroy(skel);
+	return NULL;
+}
+
+/* executes bpf program that updates map with key, value */
+static int prog_run_insert_elem(struct test_map_init *skel, map_key_t key,
+				map_value_t value)
+{
+	struct test_map_init__bss *bss;
+
+	bss = skel->bss;
+
+	bss->inKey = key;
+	bss->inValue = value;
+	bss->inPid = getpid();
+
+	if (!ASSERT_OK(test_map_init__attach(skel), "skel_attach"))
+		return -1;
+
+	/* Let tracepoint trigger */
+	syscall(__NR_getpgid);
+
+	test_map_init__detach(skel);
+
+	return 0;
+}
+
+static int check_values_one_cpu(pcpu_map_value_t *value, map_value_t expected)
+{
+	int i, nzCnt = 0;
+	map_value_t val;
+
+	for (i = 0; i < nr_cpus; i++) {
+		val = bpf_percpu(value, i);
+		if (val) {
+			if (CHECK(val != expected, "map value",
+				  "unexpected for cpu %d: 0x%llx\n", i, val))
+				return -1;
+			nzCnt++;
+		}
+	}
+
+	if (CHECK(nzCnt != 1, "map value", "set for %d CPUs instead of 1!\n",
+		  nzCnt))
+		return -1;
+
+	return 0;
+}
+
+/* Add key=1 elem with values set for all CPUs
+ * Delete elem key=1
+ * Run bpf prog that inserts new key=1 elem with value=0x1234
+ *   (bpf prog can only set value for current CPU)
+ * Lookup Key=1 and check value is as expected for all CPUs:
+ *   value set by bpf prog for one CPU, 0 for all others
+ */
+static void test_pcpu_map_init(void)
+{
+	pcpu_map_value_t value[nr_cpus];
+	struct test_map_init *skel;
+	int map_fd, err;
+	map_key_t key;
+
+	/* max 1 elem in map so insertion is forced to reuse freed entry */
+	skel = setup(BPF_MAP_TYPE_PERCPU_HASH, 1, &map_fd, 1);
+	if (!ASSERT_OK_PTR(skel, "prog_setup"))
+		return;
+
+	/* delete element so the entry can be re-used*/
+	key = 1;
+	err = bpf_map_delete_elem(map_fd, &key);
+	if (!ASSERT_OK(err, "bpf_map_delete_elem"))
+		goto cleanup;
+
+	/* run bpf prog that inserts new elem, re-using the slot just freed */
+	err = prog_run_insert_elem(skel, key, TEST_VALUE);
+	if (!ASSERT_OK(err, "prog_run_insert_elem"))
+		goto cleanup;
+
+	/* check that key=1 was re-created by bpf prog */
+	err = bpf_map_lookup_elem(map_fd, &key, value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	/* and has expected values */
+	check_values_one_cpu(value, TEST_VALUE);
+
+cleanup:
+	test_map_init__destroy(skel);
+}
+
+/* Add key=1 and key=2 elems with values set for all CPUs
+ * Run bpf prog that inserts new key=3 elem
+ *   (only for current cpu; other cpus should have initial value = 0)
+ * Lookup Key=1 and check value is as expected for all CPUs
+ */
+static void test_pcpu_lru_map_init(void)
+{
+	pcpu_map_value_t value[nr_cpus];
+	struct test_map_init *skel;
+	int map_fd, err;
+	map_key_t key;
+
+	/* Set up LRU map with 2 elements, values filled for all CPUs.
+	 * With these 2 elements, the LRU map is full
+	 */
+	skel = setup(BPF_MAP_TYPE_LRU_PERCPU_HASH, 2, &map_fd, 2);
+	if (!ASSERT_OK_PTR(skel, "prog_setup"))
+		return;
+
+	/* run bpf prog that inserts new key=3 element, re-using LRU slot */
+	key = 3;
+	err = prog_run_insert_elem(skel, key, TEST_VALUE);
+	if (!ASSERT_OK(err, "prog_run_insert_elem"))
+		goto cleanup;
+
+	/* check that key=3 replaced one of earlier elements */
+	err = bpf_map_lookup_elem(map_fd, &key, value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		goto cleanup;
+
+	/* and has expected values */
+	check_values_one_cpu(value, TEST_VALUE);
+
+cleanup:
+	test_map_init__destroy(skel);
+}
+
+void test_map_init(void)
+{
+	nr_cpus = bpf_num_possible_cpus();
+	if (nr_cpus <= 1) {
+		printf("%s:SKIP: >1 cpu needed for this test\n", __func__);
+		test__skip();
+		return;
+	}
+
+	if (test__start_subtest("pcpu_map_init"))
+		test_pcpu_map_init();
+	if (test__start_subtest("pcpu_lru_map_init"))
+		test_pcpu_lru_map_init();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_kptr.c b/tools/testing/selftests/bpf/prog_tests/map_kptr.c
new file mode 100644
index 000000000000..8743df599567
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_kptr.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "map_kptr.skel.h"
+#include "map_kptr_fail.skel.h"
+#include "rcu_tasks_trace_gp.skel.h"
+
+static void test_map_kptr_success(bool test_run)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, lopts);
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	int key = 0, ret, cpu;
+	struct map_kptr *skel;
+	char buf[16], *pbuf;
+
+	skel = map_kptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "map_kptr__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref1), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref1 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref1 retval");
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref2), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref2 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref2 retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_ls_map_kptr_ref1), &lopts);
+	ASSERT_OK(ret, "test_ls_map_kptr_ref1 refcount");
+	ASSERT_OK(lopts.retval, "test_ls_map_kptr_ref1 retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_ls_map_kptr_ref2), &lopts);
+	ASSERT_OK(ret, "test_ls_map_kptr_ref2 refcount");
+	ASSERT_OK(lopts.retval, "test_ls_map_kptr_ref2 retval");
+
+	if (test_run)
+		goto exit;
+
+	cpu = libbpf_num_possible_cpus();
+	if (!ASSERT_GT(cpu, 0, "libbpf_num_possible_cpus"))
+		goto exit;
+
+	pbuf = calloc(cpu, sizeof(buf));
+	if (!ASSERT_OK_PTR(pbuf, "calloc(pbuf)"))
+		goto exit;
+
+	ret = bpf_map__update_elem(skel->maps.array_map,
+				   &key, sizeof(key), buf, sizeof(buf), 0);
+	ASSERT_OK(ret, "array_map update");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__update_elem(skel->maps.pcpu_array_map,
+				   &key, sizeof(key), pbuf, cpu * sizeof(buf), 0);
+	ASSERT_OK(ret, "pcpu_array_map update");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.hash_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "hash_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.pcpu_hash_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "pcpu_hash_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.hash_malloc_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "hash_malloc_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.pcpu_hash_malloc_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "pcpu_hash_malloc_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.lru_hash_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "lru_hash_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_map__delete_elem(skel->maps.lru_pcpu_hash_map, &key, sizeof(key), 0);
+	ASSERT_OK(ret, "lru_pcpu_hash_map delete");
+	skel->data->ref--;
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_map_kptr_ref3), &opts);
+	ASSERT_OK(ret, "test_map_kptr_ref3 refcount");
+	ASSERT_OK(opts.retval, "test_map_kptr_ref3 retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.test_ls_map_kptr_ref_del), &lopts);
+	ASSERT_OK(ret, "test_ls_map_kptr_ref_del delete");
+	skel->data->ref--;
+	ASSERT_OK(lopts.retval, "test_ls_map_kptr_ref_del retval");
+
+	free(pbuf);
+exit:
+	map_kptr__destroy(skel);
+}
+
+static int kern_sync_rcu_tasks_trace(struct rcu_tasks_trace_gp *rcu)
+{
+	long gp_seq = READ_ONCE(rcu->bss->gp_seq);
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+	if (!ASSERT_OK(bpf_prog_test_run_opts(bpf_program__fd(rcu->progs.do_call_rcu_tasks_trace),
+					      &opts), "do_call_rcu_tasks_trace"))
+		return -EFAULT;
+	if (!ASSERT_OK(opts.retval, "opts.retval == 0"))
+		return -EFAULT;
+	while (gp_seq == READ_ONCE(rcu->bss->gp_seq))
+		sched_yield();
+	return 0;
+}
+
+void serial_test_map_kptr(void)
+{
+	struct rcu_tasks_trace_gp *skel;
+
+	RUN_TESTS(map_kptr_fail);
+
+	skel = rcu_tasks_trace_gp__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rcu_tasks_trace_gp__open_and_load"))
+		return;
+	if (!ASSERT_OK(rcu_tasks_trace_gp__attach(skel), "rcu_tasks_trace_gp__attach"))
+		goto end;
+
+	if (test__start_subtest("success-map")) {
+		test_map_kptr_success(true);
+
+		ASSERT_OK(kern_sync_rcu_tasks_trace(skel), "sync rcu_tasks_trace");
+		ASSERT_OK(kern_sync_rcu(), "sync rcu");
+		/* Observe refcount dropping to 1 on bpf_map_free_deferred */
+		test_map_kptr_success(false);
+
+		ASSERT_OK(kern_sync_rcu_tasks_trace(skel), "sync rcu_tasks_trace");
+		ASSERT_OK(kern_sync_rcu(), "sync rcu");
+		/* Observe refcount dropping to 1 on synchronous delete elem */
+		test_map_kptr_success(true);
+	}
+
+end:
+	rcu_tasks_trace_gp__destroy(skel);
+	return;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_lock.c b/tools/testing/selftests/bpf/prog_tests/map_lock.c
new file mode 100644
index 000000000000..1d6726f01dd2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_lock.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void *spin_lock_thread(void *arg)
+{
+	int err, prog_fd = *(u32 *) arg;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 10000,
+	);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run_opts err");
+	ASSERT_OK(topts.retval, "test_run_opts retval");
+
+	pthread_exit(arg);
+}
+
+static void *parallel_map_access(void *arg)
+{
+	int err, map_fd = *(u32 *) arg;
+	int vars[17], i, j, rnd, key = 0;
+
+	for (i = 0; i < 10000; i++) {
+		err = bpf_map_lookup_elem_flags(map_fd, &key, vars, BPF_F_LOCK);
+		if (CHECK_FAIL(err)) {
+			printf("lookup failed\n");
+			goto out;
+		}
+		if (CHECK_FAIL(vars[0] != 0)) {
+			printf("lookup #%d var[0]=%d\n", i, vars[0]);
+			goto out;
+		}
+		rnd = vars[1];
+		for (j = 2; j < 17; j++) {
+			if (vars[j] == rnd)
+				continue;
+			printf("lookup #%d var[1]=%d var[%d]=%d\n",
+			       i, rnd, j, vars[j]);
+			CHECK_FAIL(vars[j] != rnd);
+			goto out;
+		}
+	}
+out:
+	pthread_exit(arg);
+}
+
+void test_map_lock(void)
+{
+	const char *file = "./test_map_lock.bpf.o";
+	int prog_fd, map_fd[2], vars[17] = {};
+	pthread_t thread_id[6];
+	struct bpf_object *obj = NULL;
+	int err = 0, key = 0, i;
+	void *ret;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_CGROUP_SKB, &obj, &prog_fd);
+	if (CHECK_FAIL(err)) {
+		printf("test_map_lock:bpf_prog_test_load errno %d\n", errno);
+		goto close_prog;
+	}
+	map_fd[0] = bpf_find_map(__func__, obj, "hash_map");
+	if (CHECK_FAIL(map_fd[0] < 0))
+		goto close_prog;
+	map_fd[1] = bpf_find_map(__func__, obj, "array_map");
+	if (CHECK_FAIL(map_fd[1] < 0))
+		goto close_prog;
+
+	bpf_map_update_elem(map_fd[0], &key, vars, BPF_F_LOCK);
+
+	for (i = 0; i < 4; i++)
+		if (CHECK_FAIL(pthread_create(&thread_id[i], NULL,
+					      &spin_lock_thread, &prog_fd)))
+			goto close_prog;
+	for (i = 4; i < 6; i++)
+		if (CHECK_FAIL(pthread_create(&thread_id[i], NULL,
+					      &parallel_map_access,
+					      &map_fd[i - 4])))
+			goto close_prog;
+	for (i = 0; i < 4; i++)
+		if (CHECK_FAIL(pthread_join(thread_id[i], &ret) ||
+			       ret != (void *)&prog_fd))
+			goto close_prog;
+	for (i = 4; i < 6; i++)
+		if (CHECK_FAIL(pthread_join(thread_id[i], &ret) ||
+			       ret != (void *)&map_fd[i - 4]))
+			goto close_prog;
+close_prog:
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_lookup_percpu_elem.c b/tools/testing/selftests/bpf/prog_tests/map_lookup_percpu_elem.c
new file mode 100644
index 000000000000..bfb1bf3fd427
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_lookup_percpu_elem.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include <test_progs.h>
+#include "test_map_lookup_percpu_elem.skel.h"
+
+void test_map_lookup_percpu_elem(void)
+{
+	struct test_map_lookup_percpu_elem *skel;
+	__u64 key = 0, sum;
+	int ret, i, nr_cpus = libbpf_num_possible_cpus();
+	__u64 *buf;
+
+	buf = malloc(nr_cpus*sizeof(__u64));
+	if (!ASSERT_OK_PTR(buf, "malloc"))
+		return;
+
+	for (i = 0; i < nr_cpus; i++)
+		buf[i] = i;
+	sum = (nr_cpus - 1) * nr_cpus / 2;
+
+	skel = test_map_lookup_percpu_elem__open();
+	if (!ASSERT_OK_PTR(skel, "test_map_lookup_percpu_elem__open"))
+		goto exit;
+
+	skel->rodata->my_pid = getpid();
+	skel->rodata->nr_cpus = nr_cpus;
+
+	ret = test_map_lookup_percpu_elem__load(skel);
+	if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__load"))
+		goto cleanup;
+
+	ret = test_map_lookup_percpu_elem__attach(skel);
+	if (!ASSERT_OK(ret, "test_map_lookup_percpu_elem__attach"))
+		goto cleanup;
+
+	ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_array_map), &key, buf, 0);
+	ASSERT_OK(ret, "percpu_array_map update");
+
+	ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_hash_map), &key, buf, 0);
+	ASSERT_OK(ret, "percpu_hash_map update");
+
+	ret = bpf_map_update_elem(bpf_map__fd(skel->maps.percpu_lru_hash_map), &key, buf, 0);
+	ASSERT_OK(ret, "percpu_lru_hash_map update");
+
+	syscall(__NR_getuid);
+
+	test_map_lookup_percpu_elem__detach(skel);
+
+	ASSERT_EQ(skel->bss->percpu_array_elem_sum, sum, "percpu_array lookup percpu elem");
+	ASSERT_EQ(skel->bss->percpu_hash_elem_sum, sum, "percpu_hash lookup percpu elem");
+	ASSERT_EQ(skel->bss->percpu_lru_hash_elem_sum, sum, "percpu_lru_hash lookup percpu elem");
+
+cleanup:
+	test_map_lookup_percpu_elem__destroy(skel);
+exit:
+	free(buf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_ops.c b/tools/testing/selftests/bpf/prog_tests/map_ops.c
new file mode 100644
index 000000000000..be5e42a413b4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_ops.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <errno.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "test_map_ops.skel.h"
+#include "test_progs.h"
+
+static void map_update(void)
+{
+	(void)syscall(__NR_getpid);
+}
+
+static void map_delete(void)
+{
+	(void)syscall(__NR_getppid);
+}
+
+static void map_push(void)
+{
+	(void)syscall(__NR_getuid);
+}
+
+static void map_pop(void)
+{
+	(void)syscall(__NR_geteuid);
+}
+
+static void map_peek(void)
+{
+	(void)syscall(__NR_getgid);
+}
+
+static void map_for_each_pass(void)
+{
+	(void)syscall(__NR_gettid);
+}
+
+static void map_for_each_fail(void)
+{
+	(void)syscall(__NR_getpgid);
+}
+
+static int setup(struct test_map_ops **skel)
+{
+	int err = 0;
+
+	if (!skel)
+		return -1;
+
+	*skel = test_map_ops__open();
+	if (!ASSERT_OK_PTR(*skel, "test_map_ops__open"))
+		return -1;
+
+	(*skel)->rodata->pid = getpid();
+
+	err = test_map_ops__load(*skel);
+	if (!ASSERT_OK(err, "test_map_ops__load"))
+		return err;
+
+	err = test_map_ops__attach(*skel);
+	if (!ASSERT_OK(err, "test_map_ops__attach"))
+		return err;
+
+	return err;
+}
+
+static void teardown(struct test_map_ops **skel)
+{
+	if (skel && *skel)
+		test_map_ops__destroy(*skel);
+}
+
+static void map_ops_update_delete_subtest(void)
+{
+	struct test_map_ops *skel;
+
+	if (setup(&skel))
+		goto teardown;
+
+	map_update();
+	ASSERT_OK(skel->bss->err, "map_update_initial");
+
+	map_update();
+	ASSERT_LT(skel->bss->err, 0, "map_update_existing");
+	ASSERT_EQ(skel->bss->err, -EEXIST, "map_update_existing");
+
+	map_delete();
+	ASSERT_OK(skel->bss->err, "map_delete_existing");
+
+	map_delete();
+	ASSERT_LT(skel->bss->err, 0, "map_delete_non_existing");
+	ASSERT_EQ(skel->bss->err, -ENOENT, "map_delete_non_existing");
+
+teardown:
+	teardown(&skel);
+}
+
+static void map_ops_push_peek_pop_subtest(void)
+{
+	struct test_map_ops *skel;
+
+	if (setup(&skel))
+		goto teardown;
+
+	map_push();
+	ASSERT_OK(skel->bss->err, "map_push_initial");
+
+	map_push();
+	ASSERT_LT(skel->bss->err, 0, "map_push_when_full");
+	ASSERT_EQ(skel->bss->err, -E2BIG, "map_push_when_full");
+
+	map_peek();
+	ASSERT_OK(skel->bss->err, "map_peek");
+
+	map_pop();
+	ASSERT_OK(skel->bss->err, "map_pop");
+
+	map_peek();
+	ASSERT_LT(skel->bss->err, 0, "map_peek_when_empty");
+	ASSERT_EQ(skel->bss->err, -ENOENT, "map_peek_when_empty");
+
+	map_pop();
+	ASSERT_LT(skel->bss->err, 0, "map_pop_when_empty");
+	ASSERT_EQ(skel->bss->err, -ENOENT, "map_pop_when_empty");
+
+teardown:
+	teardown(&skel);
+}
+
+static void map_ops_for_each_subtest(void)
+{
+	struct test_map_ops *skel;
+
+	if (setup(&skel))
+		goto teardown;
+
+	map_for_each_pass();
+	/* expect to iterate over 1 element */
+	ASSERT_EQ(skel->bss->err, 1, "map_for_each_no_flags");
+
+	map_for_each_fail();
+	ASSERT_LT(skel->bss->err, 0, "map_for_each_with_flags");
+	ASSERT_EQ(skel->bss->err, -EINVAL, "map_for_each_with_flags");
+
+teardown:
+	teardown(&skel);
+}
+
+void test_map_ops(void)
+{
+	if (test__start_subtest("map_ops_update_delete"))
+		map_ops_update_delete_subtest();
+
+	if (test__start_subtest("map_ops_push_peek_pop"))
+		map_ops_push_peek_pop_subtest();
+
+	if (test__start_subtest("map_ops_for_each"))
+		map_ops_for_each_subtest();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/map_ptr.c b/tools/testing/selftests/bpf/prog_tests/map_ptr.c
new file mode 100644
index 000000000000..43e502acf050
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/map_ptr.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "map_ptr_kern.lskel.h"
+
+void test_map_ptr(void)
+{
+	struct map_ptr_kern_lskel *skel;
+	char buf[128];
+	int err;
+	int page_size = getpagesize();
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	skel = map_ptr_kern_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->maps.m_ringbuf.max_entries = page_size;
+
+	err = map_ptr_kern_lskel__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	skel->bss->page_size = page_size;
+
+	err = bpf_prog_test_run_opts(skel->progs.cg_skb.prog_fd, &topts);
+
+	if (!ASSERT_OK(err, "test_run"))
+		goto cleanup;
+
+	if (!ASSERT_NEQ(topts.retval, 0, "test_run retval"))
+		goto cleanup;
+
+cleanup:
+	map_ptr_kern_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/mem_rdonly_untrusted.c b/tools/testing/selftests/bpf/prog_tests/mem_rdonly_untrusted.c
new file mode 100644
index 000000000000..40d4f687bd9c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/mem_rdonly_untrusted.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <test_progs.h>
+#include "mem_rdonly_untrusted.skel.h"
+
+void test_mem_rdonly_untrusted(void)
+{
+	RUN_TESTS(mem_rdonly_untrusted);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/metadata.c b/tools/testing/selftests/bpf/prog_tests/metadata.c
new file mode 100644
index 000000000000..8b67dfc10f5c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/metadata.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <cgroup_helpers.h>
+#include <network_helpers.h>
+
+#include "metadata_unused.skel.h"
+#include "metadata_used.skel.h"
+
+static int duration;
+
+static int prog_holds_map(int prog_fd, int map_fd)
+{
+	struct bpf_prog_info prog_info = {};
+	struct bpf_map_info map_info = {};
+	__u32 prog_info_len;
+	__u32 map_info_len;
+	__u32 *map_ids;
+	int nr_maps;
+	int ret;
+	int i;
+
+	map_info_len = sizeof(map_info);
+	ret = bpf_map_get_info_by_fd(map_fd, &map_info, &map_info_len);
+	if (ret)
+		return -errno;
+
+	prog_info_len = sizeof(prog_info);
+	ret = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
+	if (ret)
+		return -errno;
+
+	map_ids = calloc(prog_info.nr_map_ids, sizeof(__u32));
+	if (!map_ids)
+		return -ENOMEM;
+
+	nr_maps = prog_info.nr_map_ids;
+	memset(&prog_info, 0, sizeof(prog_info));
+	prog_info.nr_map_ids = nr_maps;
+	prog_info.map_ids = ptr_to_u64(map_ids);
+	prog_info_len = sizeof(prog_info);
+
+	ret = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &prog_info_len);
+	if (ret) {
+		ret = -errno;
+		goto free_map_ids;
+	}
+
+	ret = -ENOENT;
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		if (map_ids[i] == map_info.id) {
+			ret = 0;
+			break;
+		}
+	}
+
+free_map_ids:
+	free(map_ids);
+	return ret;
+}
+
+static void test_metadata_unused(void)
+{
+	struct metadata_unused *obj;
+	int err;
+
+	obj = metadata_unused__open_and_load();
+	if (CHECK(!obj, "skel-load", "errno %d", errno))
+		return;
+
+	err = prog_holds_map(bpf_program__fd(obj->progs.prog),
+			     bpf_map__fd(obj->maps.rodata));
+	if (CHECK(err, "prog-holds-rodata", "errno: %d", err))
+		return;
+
+	/* Assert that we can access the metadata in skel and the values are
+	 * what we expect.
+	 */
+	if (CHECK(strncmp(obj->rodata->bpf_metadata_a, "foo",
+			  sizeof(obj->rodata->bpf_metadata_a)),
+		  "bpf_metadata_a", "expected \"foo\", value differ"))
+		goto close_bpf_object;
+	if (CHECK(obj->rodata->bpf_metadata_b != 1, "bpf_metadata_b",
+		  "expected 1, got %d", obj->rodata->bpf_metadata_b))
+		goto close_bpf_object;
+
+	/* Assert that binding metadata map to prog again succeeds. */
+	err = bpf_prog_bind_map(bpf_program__fd(obj->progs.prog),
+				bpf_map__fd(obj->maps.rodata), NULL);
+	CHECK(err, "rebind_map", "errno %d, expected 0", errno);
+
+close_bpf_object:
+	metadata_unused__destroy(obj);
+}
+
+static void test_metadata_used(void)
+{
+	struct metadata_used *obj;
+	int err;
+
+	obj = metadata_used__open_and_load();
+	if (CHECK(!obj, "skel-load", "errno %d", errno))
+		return;
+
+	err = prog_holds_map(bpf_program__fd(obj->progs.prog),
+			     bpf_map__fd(obj->maps.rodata));
+	if (CHECK(err, "prog-holds-rodata", "errno: %d", err))
+		return;
+
+	/* Assert that we can access the metadata in skel and the values are
+	 * what we expect.
+	 */
+	if (CHECK(strncmp(obj->rodata->bpf_metadata_a, "bar",
+			  sizeof(obj->rodata->bpf_metadata_a)),
+		  "metadata_a", "expected \"bar\", value differ"))
+		goto close_bpf_object;
+	if (CHECK(obj->rodata->bpf_metadata_b != 2, "metadata_b",
+		  "expected 2, got %d", obj->rodata->bpf_metadata_b))
+		goto close_bpf_object;
+
+	/* Assert that binding metadata map to prog again succeeds. */
+	err = bpf_prog_bind_map(bpf_program__fd(obj->progs.prog),
+				bpf_map__fd(obj->maps.rodata), NULL);
+	CHECK(err, "rebind_map", "errno %d, expected 0", errno);
+
+close_bpf_object:
+	metadata_used__destroy(obj);
+}
+
+void test_metadata(void)
+{
+	if (test__start_subtest("unused"))
+		test_metadata_unused();
+
+	if (test__start_subtest("used"))
+		test_metadata_used();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
new file mode 100644
index 000000000000..653b0a20fab9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/migrate_reuseport.c
@@ -0,0 +1,559 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check if we can migrate child sockets.
+ *
+ *   1. call listen() for 4 server sockets.
+ *   2. call connect() for 25 client sockets.
+ *   3. call listen() for 1 server socket. (migration target)
+ *   4. update a map to migrate all child sockets
+ *        to the last server socket (migrate_map[cookie] = 4)
+ *   5. call shutdown() for first 4 server sockets
+ *        and migrate the requests in the accept queue
+ *        to the last server socket.
+ *   6. call listen() for the second server socket.
+ *   7. call shutdown() for the last server
+ *        and migrate the requests in the accept queue
+ *        to the second server socket.
+ *   8. call listen() for the last server.
+ *   9. call shutdown() for the second server
+ *        and migrate the requests in the accept queue
+ *        to the last server socket.
+ *  10. call accept() for the last server socket.
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "test_progs.h"
+#include "test_migrate_reuseport.skel.h"
+#include "network_helpers.h"
+
+#ifndef TCP_FASTOPEN_CONNECT
+#define TCP_FASTOPEN_CONNECT 30
+#endif
+
+#define IFINDEX_LO 1
+
+#define NR_SERVERS 5
+#define NR_CLIENTS (NR_SERVERS * 5)
+#define MIGRATED_TO (NR_SERVERS - 1)
+
+/* fastopenq->max_qlen and sk->sk_max_ack_backlog */
+#define QLEN (NR_CLIENTS * 5)
+
+#define MSG "Hello World\0"
+#define MSGLEN 12
+
+static struct migrate_reuseport_test_case {
+	const char *name;
+	__s64 servers[NR_SERVERS];
+	__s64 clients[NR_CLIENTS];
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+	int family;
+	int state;
+	bool drop_ack;
+	bool expire_synack_timer;
+	bool fastopen;
+	struct bpf_link *link;
+} test_cases[] = {
+	{
+		.name = "IPv4 TCP_ESTABLISHED  inet_csk_listen_stop",
+		.family = AF_INET,
+		.state = BPF_TCP_ESTABLISHED,
+		.drop_ack = false,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv4 TCP_SYN_RECV     inet_csk_listen_stop",
+		.family = AF_INET,
+		.state = BPF_TCP_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = true,
+	},
+	{
+		.name = "IPv4 TCP_NEW_SYN_RECV reqsk_timer_handler",
+		.family = AF_INET,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = true,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv4 TCP_NEW_SYN_RECV inet_csk_complete_hashdance",
+		.family = AF_INET,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_ESTABLISHED  inet_csk_listen_stop",
+		.family = AF_INET6,
+		.state = BPF_TCP_ESTABLISHED,
+		.drop_ack = false,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_SYN_RECV     inet_csk_listen_stop",
+		.family = AF_INET6,
+		.state = BPF_TCP_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = true,
+	},
+	{
+		.name = "IPv6 TCP_NEW_SYN_RECV reqsk_timer_handler",
+		.family = AF_INET6,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = true,
+		.fastopen = false,
+	},
+	{
+		.name = "IPv6 TCP_NEW_SYN_RECV inet_csk_complete_hashdance",
+		.family = AF_INET6,
+		.state = BPF_TCP_NEW_SYN_RECV,
+		.drop_ack = true,
+		.expire_synack_timer = false,
+		.fastopen = false,
+	}
+};
+
+static void init_fds(__s64 fds[], int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++)
+		fds[i] = -1;
+}
+
+static void close_fds(__s64 fds[], int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (fds[i] != -1) {
+			close(fds[i]);
+			fds[i] = -1;
+		}
+	}
+}
+
+static int setup_fastopen(char *buf, int size, int *saved_len, bool restore)
+{
+	int err = 0, fd, len;
+
+	fd = open("/proc/sys/net/ipv4/tcp_fastopen", O_RDWR);
+	if (!ASSERT_NEQ(fd, -1, "open"))
+		return -1;
+
+	if (restore) {
+		len = write(fd, buf, *saved_len);
+		if (!ASSERT_EQ(len, *saved_len, "write - restore"))
+			err = -1;
+	} else {
+		*saved_len = read(fd, buf, size);
+		if (!ASSERT_GE(*saved_len, 1, "read")) {
+			err = -1;
+			goto close;
+		}
+
+		err = lseek(fd, 0, SEEK_SET);
+		if (!ASSERT_OK(err, "lseek"))
+			goto close;
+
+		/* (TFO_CLIENT_ENABLE | TFO_SERVER_ENABLE |
+		 *  TFO_CLIENT_NO_COOKIE | TFO_SERVER_COOKIE_NOT_REQD)
+		 */
+		len = write(fd, "519", 3);
+		if (!ASSERT_EQ(len, 3, "write - setup"))
+			err = -1;
+	}
+
+close:
+	close(fd);
+
+	return err;
+}
+
+static int drop_ack(struct migrate_reuseport_test_case *test_case,
+		    struct test_migrate_reuseport *skel)
+{
+	if (test_case->family == AF_INET)
+		skel->bss->server_port = ((struct sockaddr_in *)
+					  &test_case->addr)->sin_port;
+	else
+		skel->bss->server_port = ((struct sockaddr_in6 *)
+					  &test_case->addr)->sin6_port;
+
+	test_case->link = bpf_program__attach_xdp(skel->progs.drop_ack,
+						  IFINDEX_LO);
+	if (!ASSERT_OK_PTR(test_case->link, "bpf_program__attach_xdp"))
+		return -1;
+
+	return 0;
+}
+
+static int pass_ack(struct migrate_reuseport_test_case *test_case)
+{
+	int err;
+
+	err = bpf_link__destroy(test_case->link);
+	if (!ASSERT_OK(err, "bpf_link__destroy"))
+		return -1;
+
+	test_case->link = NULL;
+
+	return 0;
+}
+
+static int start_servers(struct migrate_reuseport_test_case *test_case,
+			 struct test_migrate_reuseport *skel)
+{
+	int i, err, prog_fd, reuseport = 1, qlen = QLEN;
+
+	prog_fd = bpf_program__fd(skel->progs.migrate_reuseport);
+
+	make_sockaddr(test_case->family,
+		      test_case->family == AF_INET ? "127.0.0.1" : "::1", 0,
+		      &test_case->addr, &test_case->addrlen);
+
+	for (i = 0; i < NR_SERVERS; i++) {
+		test_case->servers[i] = socket(test_case->family, SOCK_STREAM,
+					       IPPROTO_TCP);
+		if (!ASSERT_NEQ(test_case->servers[i], -1, "socket"))
+			return -1;
+
+		err = setsockopt(test_case->servers[i], SOL_SOCKET,
+				 SO_REUSEPORT, &reuseport, sizeof(reuseport));
+		if (!ASSERT_OK(err, "setsockopt - SO_REUSEPORT"))
+			return -1;
+
+		err = bind(test_case->servers[i],
+			   (struct sockaddr *)&test_case->addr,
+			   test_case->addrlen);
+		if (!ASSERT_OK(err, "bind"))
+			return -1;
+
+		if (i == 0) {
+			err = setsockopt(test_case->servers[i], SOL_SOCKET,
+					 SO_ATTACH_REUSEPORT_EBPF,
+					 &prog_fd, sizeof(prog_fd));
+			if (!ASSERT_OK(err,
+				       "setsockopt - SO_ATTACH_REUSEPORT_EBPF"))
+				return -1;
+
+			err = getsockname(test_case->servers[i],
+					  (struct sockaddr *)&test_case->addr,
+					  &test_case->addrlen);
+			if (!ASSERT_OK(err, "getsockname"))
+				return -1;
+		}
+
+		if (test_case->fastopen) {
+			err = setsockopt(test_case->servers[i],
+					 SOL_TCP, TCP_FASTOPEN,
+					 &qlen, sizeof(qlen));
+			if (!ASSERT_OK(err, "setsockopt - TCP_FASTOPEN"))
+				return -1;
+		}
+
+		/* All requests will be tied to the first four listeners */
+		if (i != MIGRATED_TO) {
+			err = listen(test_case->servers[i], qlen);
+			if (!ASSERT_OK(err, "listen"))
+				return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int start_clients(struct migrate_reuseport_test_case *test_case)
+{
+	char buf[MSGLEN] = MSG;
+	int i, err;
+
+	for (i = 0; i < NR_CLIENTS; i++) {
+		test_case->clients[i] = socket(test_case->family, SOCK_STREAM,
+					       IPPROTO_TCP);
+		if (!ASSERT_NEQ(test_case->clients[i], -1, "socket"))
+			return -1;
+
+		/* The attached XDP program drops only the final ACK, so
+		 * clients will transition to TCP_ESTABLISHED immediately.
+		 */
+		err = settimeo(test_case->clients[i], 100);
+		if (!ASSERT_OK(err, "settimeo"))
+			return -1;
+
+		if (test_case->fastopen) {
+			int fastopen = 1;
+
+			err = setsockopt(test_case->clients[i], IPPROTO_TCP,
+					 TCP_FASTOPEN_CONNECT, &fastopen,
+					 sizeof(fastopen));
+			if (!ASSERT_OK(err,
+				       "setsockopt - TCP_FASTOPEN_CONNECT"))
+				return -1;
+		}
+
+		err = connect(test_case->clients[i],
+			      (struct sockaddr *)&test_case->addr,
+			      test_case->addrlen);
+		if (!ASSERT_OK(err, "connect"))
+			return -1;
+
+		err = write(test_case->clients[i], buf, MSGLEN);
+		if (!ASSERT_EQ(err, MSGLEN, "write"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int update_maps(struct migrate_reuseport_test_case *test_case,
+		       struct test_migrate_reuseport *skel)
+{
+	int i, err, migrated_to = MIGRATED_TO;
+	int reuseport_map_fd, migrate_map_fd;
+	__u64 value;
+
+	reuseport_map_fd = bpf_map__fd(skel->maps.reuseport_map);
+	migrate_map_fd = bpf_map__fd(skel->maps.migrate_map);
+
+	for (i = 0; i < NR_SERVERS; i++) {
+		value = (__u64)test_case->servers[i];
+		err = bpf_map_update_elem(reuseport_map_fd, &i, &value,
+					  BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem - reuseport_map"))
+			return -1;
+
+		err = bpf_map_lookup_elem(reuseport_map_fd, &i, &value);
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem - reuseport_map"))
+			return -1;
+
+		err = bpf_map_update_elem(migrate_map_fd, &value, &migrated_to,
+					  BPF_NOEXIST);
+		if (!ASSERT_OK(err, "bpf_map_update_elem - migrate_map"))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int migrate_dance(struct migrate_reuseport_test_case *test_case)
+{
+	int i, err;
+
+	/* Migrate TCP_ESTABLISHED and TCP_SYN_RECV requests
+	 * to the last listener based on eBPF.
+	 */
+	for (i = 0; i < MIGRATED_TO; i++) {
+		err = shutdown(test_case->servers[i], SHUT_RDWR);
+		if (!ASSERT_OK(err, "shutdown"))
+			return -1;
+	}
+
+	/* No dance for TCP_NEW_SYN_RECV to migrate based on eBPF */
+	if (test_case->state == BPF_TCP_NEW_SYN_RECV)
+		return 0;
+
+	/* Note that we use the second listener instead of the
+	 * first one here.
+	 *
+	 * The fist listener is bind()ed with port 0 and,
+	 * SOCK_BINDPORT_LOCK is not set to sk_userlocks, so
+	 * calling listen() again will bind() the first listener
+	 * on a new ephemeral port and detach it from the existing
+	 * reuseport group.  (See: __inet_bind(), tcp_set_state())
+	 *
+	 * OTOH, the second one is bind()ed with a specific port,
+	 * and SOCK_BINDPORT_LOCK is set. Thus, re-listen() will
+	 * resurrect the listener on the existing reuseport group.
+	 */
+	err = listen(test_case->servers[1], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		return -1;
+
+	/* Migrate from the last listener to the second one.
+	 *
+	 * All listeners were detached out of the reuseport_map,
+	 * so migration will be done by kernel random pick from here.
+	 */
+	err = shutdown(test_case->servers[MIGRATED_TO], SHUT_RDWR);
+	if (!ASSERT_OK(err, "shutdown"))
+		return -1;
+
+	/* Back to the existing reuseport group */
+	err = listen(test_case->servers[MIGRATED_TO], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		return -1;
+
+	/* Migrate back to the last one from the second one */
+	err = shutdown(test_case->servers[1], SHUT_RDWR);
+	if (!ASSERT_OK(err, "shutdown"))
+		return -1;
+
+	return 0;
+}
+
+static void count_requests(struct migrate_reuseport_test_case *test_case,
+			   struct test_migrate_reuseport *skel)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = sizeof(addr);
+	int err, cnt = 0, client;
+	char buf[MSGLEN];
+
+	err = settimeo(test_case->servers[MIGRATED_TO], 4000);
+	if (!ASSERT_OK(err, "settimeo"))
+		goto out;
+
+	for (; cnt < NR_CLIENTS; cnt++) {
+		client = accept(test_case->servers[MIGRATED_TO],
+				(struct sockaddr *)&addr, &len);
+		if (!ASSERT_NEQ(client, -1, "accept"))
+			goto out;
+
+		memset(buf, 0, MSGLEN);
+		read(client, &buf, MSGLEN);
+		close(client);
+
+		if (!ASSERT_STREQ(buf, MSG, "read"))
+			goto out;
+	}
+
+out:
+	ASSERT_EQ(cnt, NR_CLIENTS, "count in userspace");
+
+	switch (test_case->state) {
+	case BPF_TCP_ESTABLISHED:
+		cnt = skel->bss->migrated_at_close;
+		break;
+	case BPF_TCP_SYN_RECV:
+		cnt = skel->bss->migrated_at_close_fastopen;
+		break;
+	case BPF_TCP_NEW_SYN_RECV:
+		if (test_case->expire_synack_timer)
+			cnt = skel->bss->migrated_at_send_synack;
+		else
+			cnt = skel->bss->migrated_at_recv_ack;
+		break;
+	default:
+		cnt = 0;
+	}
+
+	ASSERT_EQ(cnt, NR_CLIENTS, "count in BPF prog");
+}
+
+static void run_test(struct migrate_reuseport_test_case *test_case,
+		     struct test_migrate_reuseport *skel)
+{
+	int err, saved_len;
+	char buf[16];
+
+	skel->bss->migrated_at_close = 0;
+	skel->bss->migrated_at_close_fastopen = 0;
+	skel->bss->migrated_at_send_synack = 0;
+	skel->bss->migrated_at_recv_ack = 0;
+
+	init_fds(test_case->servers, NR_SERVERS);
+	init_fds(test_case->clients, NR_CLIENTS);
+
+	if (test_case->fastopen) {
+		memset(buf, 0, sizeof(buf));
+
+		err = setup_fastopen(buf, sizeof(buf), &saved_len, false);
+		if (!ASSERT_OK(err, "setup_fastopen - setup"))
+			return;
+	}
+
+	err = start_servers(test_case, skel);
+	if (!ASSERT_OK(err, "start_servers"))
+		goto close_servers;
+
+	if (test_case->drop_ack) {
+		/* Drop the final ACK of the 3-way handshake and stick the
+		 * in-flight requests on TCP_SYN_RECV or TCP_NEW_SYN_RECV.
+		 */
+		err = drop_ack(test_case, skel);
+		if (!ASSERT_OK(err, "drop_ack"))
+			goto close_servers;
+	}
+
+	/* Tie requests to the first four listeners */
+	err = start_clients(test_case);
+	if (!ASSERT_OK(err, "start_clients"))
+		goto close_clients;
+
+	err = listen(test_case->servers[MIGRATED_TO], QLEN);
+	if (!ASSERT_OK(err, "listen"))
+		goto close_clients;
+
+	err = update_maps(test_case, skel);
+	if (!ASSERT_OK(err, "fill_maps"))
+		goto close_clients;
+
+	/* Migrate the requests in the accept queue only.
+	 * TCP_NEW_SYN_RECV requests are not migrated at this point.
+	 */
+	err = migrate_dance(test_case);
+	if (!ASSERT_OK(err, "migrate_dance"))
+		goto close_clients;
+
+	if (test_case->expire_synack_timer) {
+		/* Wait for SYN+ACK timers to expire so that
+		 * reqsk_timer_handler() migrates TCP_NEW_SYN_RECV requests.
+		 */
+		sleep(1);
+	}
+
+	if (test_case->link) {
+		/* Resume 3WHS and migrate TCP_NEW_SYN_RECV requests */
+		err = pass_ack(test_case);
+		if (!ASSERT_OK(err, "pass_ack"))
+			goto close_clients;
+	}
+
+	count_requests(test_case, skel);
+
+close_clients:
+	close_fds(test_case->clients, NR_CLIENTS);
+
+	if (test_case->link) {
+		err = pass_ack(test_case);
+		ASSERT_OK(err, "pass_ack - clean up");
+	}
+
+close_servers:
+	close_fds(test_case->servers, NR_SERVERS);
+
+	if (test_case->fastopen) {
+		err = setup_fastopen(buf, sizeof(buf), &saved_len, true);
+		ASSERT_OK(err, "setup_fastopen - restore");
+	}
+}
+
+void serial_test_migrate_reuseport(void)
+{
+	struct test_migrate_reuseport *skel;
+	int i;
+
+	skel = test_migrate_reuseport__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		test__start_subtest(test_cases[i].name);
+		run_test(&test_cases[i], skel);
+	}
+
+	test_migrate_reuseport__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/missed.c b/tools/testing/selftests/bpf/prog_tests/missed.c
new file mode 100644
index 000000000000..ed8857ae914a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/missed.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "missed_kprobe.skel.h"
+#include "missed_kprobe_recursion.skel.h"
+#include "missed_tp_recursion.skel.h"
+
+/*
+ * Putting kprobe on bpf_fentry_test1 that calls bpf_kfunc_common_test
+ * kfunc, which has also kprobe on. The latter won't get triggered due
+ * to kprobe recursion check and kprobe missed counter is incremented.
+ */
+static void test_missed_perf_kprobe(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_link_info info = {};
+	struct missed_kprobe *skel;
+	__u32 len = sizeof(info);
+	int err, prog_fd;
+
+	skel = missed_kprobe__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "missed_kprobe__open_and_load"))
+		goto cleanup;
+
+	err = missed_kprobe__attach(skel);
+	if (!ASSERT_OK(err, "missed_kprobe__attach"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	err = bpf_link_get_info_by_fd(bpf_link__fd(skel->links.test2), &info, &len);
+	if (!ASSERT_OK(err, "bpf_link_get_info_by_fd"))
+		goto cleanup;
+
+	ASSERT_EQ(info.type, BPF_LINK_TYPE_PERF_EVENT, "info.type");
+	ASSERT_EQ(info.perf_event.type, BPF_PERF_EVENT_KPROBE, "info.perf_event.type");
+	ASSERT_EQ(info.perf_event.kprobe.missed, 1, "info.perf_event.kprobe.missed");
+
+cleanup:
+	missed_kprobe__destroy(skel);
+}
+
+static __u64 get_missed_count(int fd)
+{
+	struct bpf_prog_info info = {};
+	__u32 len = sizeof(info);
+	int err;
+
+	err = bpf_prog_get_info_by_fd(fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		return (__u64) -1;
+	return info.recursion_misses;
+}
+
+/*
+ * Putting kprobe.multi on bpf_fentry_test1 that calls bpf_kfunc_common_test
+ * kfunc which has 3 perf event kprobes and 1 kprobe.multi attached.
+ *
+ * Because fprobe (kprobe.multi attach layear) does not have strict recursion
+ * check the kprobe's bpf_prog_active check is hit for test2-5.
+ */
+static void test_missed_kprobe_recursion(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct missed_kprobe_recursion *skel;
+	int err, prog_fd;
+
+	skel = missed_kprobe_recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "missed_kprobe_recursion__open_and_load"))
+		goto cleanup;
+
+	err = missed_kprobe_recursion__attach(skel);
+	if (!ASSERT_OK(err, "missed_kprobe_recursion__attach"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test1)), 0, "test1_recursion_misses");
+	ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test2)), 1, "test2_recursion_misses");
+	ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test3)), 1, "test3_recursion_misses");
+	ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test4)), 1, "test4_recursion_misses");
+	ASSERT_GE(get_missed_count(bpf_program__fd(skel->progs.test5)), 1, "test5_recursion_misses");
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test6)), 1, "test6_recursion_misses");
+
+cleanup:
+	missed_kprobe_recursion__destroy(skel);
+}
+
+/*
+ * Putting kprobe on bpf_fentry_test1 that calls bpf_printk and invokes
+ * bpf_trace_printk tracepoint. The bpf_trace_printk tracepoint has test[234]
+ * programs attached to it.
+ *
+ * Because kprobe execution goes through bpf_prog_active check, programs
+ * attached to the tracepoint will fail the recursion check and increment
+ * the recursion_misses stats.
+ */
+static void test_missed_tp_recursion(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct missed_tp_recursion *skel;
+	int err, prog_fd;
+
+	skel = missed_tp_recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "missed_tp_recursion__open_and_load"))
+		goto cleanup;
+
+	err = missed_tp_recursion__attach(skel);
+	if (!ASSERT_OK(err, "missed_tp_recursion__attach"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.trigger);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test1)), 0, "test1_recursion_misses");
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test2)), 1, "test2_recursion_misses");
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test3)), 1, "test3_recursion_misses");
+	ASSERT_EQ(get_missed_count(bpf_program__fd(skel->progs.test4)), 1, "test4_recursion_misses");
+
+cleanup:
+	missed_tp_recursion__destroy(skel);
+}
+
+void test_missed(void)
+{
+	if (test__start_subtest("perf_kprobe"))
+		test_missed_perf_kprobe();
+	if (test__start_subtest("kprobe_recursion"))
+		test_missed_kprobe_recursion();
+	if (test__start_subtest("tp_recursion"))
+		test_missed_tp_recursion();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/mmap.c b/tools/testing/selftests/bpf/prog_tests/mmap.c
new file mode 100644
index 000000000000..a271d5a0f7ab
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/mmap.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <sys/mman.h>
+#include "test_mmap.skel.h"
+
+struct map_data {
+	__u64 val[512 * 4];
+};
+
+static size_t roundup_page(size_t sz)
+{
+	long page_size = sysconf(_SC_PAGE_SIZE);
+	return (sz + page_size - 1) / page_size * page_size;
+}
+
+void test_mmap(void)
+{
+	const size_t bss_sz = roundup_page(sizeof(struct test_mmap__bss));
+	const size_t map_sz = roundup_page(sizeof(struct map_data));
+	const int zero = 0, one = 1, two = 2, far = 1500;
+	const long page_size = sysconf(_SC_PAGE_SIZE);
+	int err, duration = 0, i, data_map_fd, data_map_id, tmp_fd, rdmap_fd;
+	struct bpf_map *data_map, *bss_map;
+	void *bss_mmaped = NULL, *map_mmaped = NULL, *tmp0, *tmp1, *tmp2;
+	struct test_mmap__bss *bss_data;
+	struct bpf_map_info map_info;
+	__u32 map_info_sz = sizeof(map_info);
+	struct map_data *map_data;
+	struct test_mmap *skel;
+	__u64 val = 0;
+
+	skel = test_mmap__open();
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	err = bpf_map__set_max_entries(skel->maps.rdonly_map, page_size);
+	if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n"))
+		goto cleanup;
+
+	/* at least 4 pages of data */
+	err = bpf_map__set_max_entries(skel->maps.data_map,
+				       4 * (page_size / sizeof(u64)));
+	if (CHECK(err != 0, "bpf_map__set_max_entries", "bpf_map__set_max_entries failed\n"))
+		goto cleanup;
+
+	err = test_mmap__load(skel);
+	if (CHECK(err != 0, "skel_load", "skeleton load failed\n"))
+		goto cleanup;
+
+	bss_map = skel->maps.bss;
+	data_map = skel->maps.data_map;
+	data_map_fd = bpf_map__fd(data_map);
+
+	rdmap_fd = bpf_map__fd(skel->maps.rdonly_map);
+	tmp1 = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rdmap_fd, 0);
+	if (CHECK(tmp1 != MAP_FAILED, "rdonly_write_mmap", "unexpected success\n")) {
+		munmap(tmp1, page_size);
+		goto cleanup;
+	}
+	/* now double-check if it's mmap()'able at all */
+	tmp1 = mmap(NULL, page_size, PROT_READ, MAP_SHARED, rdmap_fd, 0);
+	if (CHECK(tmp1 == MAP_FAILED, "rdonly_read_mmap", "failed: %d\n", errno))
+		goto cleanup;
+
+	/* get map's ID */
+	memset(&map_info, 0, map_info_sz);
+	err = bpf_map_get_info_by_fd(data_map_fd, &map_info, &map_info_sz);
+	if (CHECK(err, "map_get_info", "failed %d\n", errno))
+		goto cleanup;
+	data_map_id = map_info.id;
+
+	/* mmap BSS map */
+	bss_mmaped = mmap(NULL, bss_sz, PROT_READ | PROT_WRITE, MAP_SHARED,
+			  bpf_map__fd(bss_map), 0);
+	if (CHECK(bss_mmaped == MAP_FAILED, "bss_mmap",
+		  ".bss mmap failed: %d\n", errno)) {
+		bss_mmaped = NULL;
+		goto cleanup;
+	}
+	/* map as R/W first */
+	map_mmaped = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED,
+			  data_map_fd, 0);
+	if (CHECK(map_mmaped == MAP_FAILED, "data_mmap",
+		  "data_map mmap failed: %d\n", errno)) {
+		map_mmaped = NULL;
+		goto cleanup;
+	}
+
+	bss_data = bss_mmaped;
+	map_data = map_mmaped;
+
+	CHECK_FAIL(bss_data->in_val);
+	CHECK_FAIL(bss_data->out_val);
+	CHECK_FAIL(skel->bss->in_val);
+	CHECK_FAIL(skel->bss->out_val);
+	CHECK_FAIL(map_data->val[0]);
+	CHECK_FAIL(map_data->val[1]);
+	CHECK_FAIL(map_data->val[2]);
+	CHECK_FAIL(map_data->val[far]);
+
+	err = test_mmap__attach(skel);
+	if (CHECK(err, "attach_raw_tp", "err %d\n", err))
+		goto cleanup;
+
+	bss_data->in_val = 123;
+	val = 111;
+	CHECK_FAIL(bpf_map_update_elem(data_map_fd, &zero, &val, 0));
+
+	usleep(1);
+
+	CHECK_FAIL(bss_data->in_val != 123);
+	CHECK_FAIL(bss_data->out_val != 123);
+	CHECK_FAIL(skel->bss->in_val != 123);
+	CHECK_FAIL(skel->bss->out_val != 123);
+	CHECK_FAIL(map_data->val[0] != 111);
+	CHECK_FAIL(map_data->val[1] != 222);
+	CHECK_FAIL(map_data->val[2] != 123);
+	CHECK_FAIL(map_data->val[far] != 3 * 123);
+
+	CHECK_FAIL(bpf_map_lookup_elem(data_map_fd, &zero, &val));
+	CHECK_FAIL(val != 111);
+	CHECK_FAIL(bpf_map_lookup_elem(data_map_fd, &one, &val));
+	CHECK_FAIL(val != 222);
+	CHECK_FAIL(bpf_map_lookup_elem(data_map_fd, &two, &val));
+	CHECK_FAIL(val != 123);
+	CHECK_FAIL(bpf_map_lookup_elem(data_map_fd, &far, &val));
+	CHECK_FAIL(val != 3 * 123);
+
+	/* data_map freeze should fail due to R/W mmap() */
+	err = bpf_map_freeze(data_map_fd);
+	if (CHECK(!err || errno != EBUSY, "no_freeze",
+		  "data_map freeze succeeded: err=%d, errno=%d\n", err, errno))
+		goto cleanup;
+
+	err = mprotect(map_mmaped, map_sz, PROT_READ);
+	if (CHECK(err, "mprotect_ro", "mprotect to r/o failed %d\n", errno))
+		goto cleanup;
+
+	/* unmap R/W mapping */
+	err = munmap(map_mmaped, map_sz);
+	map_mmaped = NULL;
+	if (CHECK(err, "data_map_munmap", "data_map munmap failed: %d\n", errno))
+		goto cleanup;
+
+	/* re-map as R/O now */
+	map_mmaped = mmap(NULL, map_sz, PROT_READ, MAP_SHARED, data_map_fd, 0);
+	if (CHECK(map_mmaped == MAP_FAILED, "data_mmap",
+		  "data_map R/O mmap failed: %d\n", errno)) {
+		map_mmaped = NULL;
+		goto cleanup;
+	}
+	err = mprotect(map_mmaped, map_sz, PROT_WRITE);
+	if (CHECK(!err, "mprotect_wr", "mprotect() succeeded unexpectedly!\n"))
+		goto cleanup;
+	err = mprotect(map_mmaped, map_sz, PROT_EXEC);
+	if (CHECK(!err, "mprotect_ex", "mprotect() succeeded unexpectedly!\n"))
+		goto cleanup;
+	map_data = map_mmaped;
+
+	/* map/unmap in a loop to test ref counting */
+	for (i = 0; i < 10; i++) {
+		int flags = i % 2 ? PROT_READ : PROT_WRITE;
+		void *p;
+
+		p = mmap(NULL, map_sz, flags, MAP_SHARED, data_map_fd, 0);
+		if (CHECK_FAIL(p == MAP_FAILED))
+			goto cleanup;
+		err = munmap(p, map_sz);
+		if (CHECK_FAIL(err))
+			goto cleanup;
+	}
+
+	/* data_map freeze should now succeed due to no R/W mapping */
+	err = bpf_map_freeze(data_map_fd);
+	if (CHECK(err, "freeze", "data_map freeze failed: err=%d, errno=%d\n",
+		  err, errno))
+		goto cleanup;
+
+	/* mapping as R/W now should fail */
+	tmp1 = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED,
+		    data_map_fd, 0);
+	if (CHECK(tmp1 != MAP_FAILED, "data_mmap", "mmap succeeded\n")) {
+		munmap(tmp1, map_sz);
+		goto cleanup;
+	}
+
+	bss_data->in_val = 321;
+	usleep(1);
+	CHECK_FAIL(bss_data->in_val != 321);
+	CHECK_FAIL(bss_data->out_val != 321);
+	CHECK_FAIL(skel->bss->in_val != 321);
+	CHECK_FAIL(skel->bss->out_val != 321);
+	CHECK_FAIL(map_data->val[0] != 111);
+	CHECK_FAIL(map_data->val[1] != 222);
+	CHECK_FAIL(map_data->val[2] != 321);
+	CHECK_FAIL(map_data->val[far] != 3 * 321);
+
+	/* check some more advanced mmap() manipulations */
+
+	tmp0 = mmap(NULL, 4 * page_size, PROT_READ, MAP_SHARED | MAP_ANONYMOUS,
+			  -1, 0);
+	if (CHECK(tmp0 == MAP_FAILED, "adv_mmap0", "errno %d\n", errno))
+		goto cleanup;
+
+	/* map all but last page: pages 1-3 mapped */
+	tmp1 = mmap(tmp0, 3 * page_size, PROT_READ, MAP_SHARED | MAP_FIXED,
+			  data_map_fd, 0);
+	if (CHECK(tmp0 != tmp1, "adv_mmap1", "tmp0: %p, tmp1: %p\n", tmp0, tmp1)) {
+		munmap(tmp0, 4 * page_size);
+		goto cleanup;
+	}
+
+	/* unmap second page: pages 1, 3 mapped */
+	err = munmap(tmp1 + page_size, page_size);
+	if (CHECK(err, "adv_mmap2", "errno %d\n", errno)) {
+		munmap(tmp1, 4 * page_size);
+		goto cleanup;
+	}
+
+	/* map page 2 back */
+	tmp2 = mmap(tmp1 + page_size, page_size, PROT_READ,
+		    MAP_SHARED | MAP_FIXED, data_map_fd, 0);
+	if (CHECK(tmp2 == MAP_FAILED, "adv_mmap3", "errno %d\n", errno)) {
+		munmap(tmp1, page_size);
+		munmap(tmp1 + 2*page_size, 2 * page_size);
+		goto cleanup;
+	}
+	CHECK(tmp1 + page_size != tmp2, "adv_mmap4",
+	      "tmp1: %p, tmp2: %p\n", tmp1, tmp2);
+
+	/* re-map all 4 pages */
+	tmp2 = mmap(tmp1, 4 * page_size, PROT_READ, MAP_SHARED | MAP_FIXED,
+		    data_map_fd, 0);
+	if (CHECK(tmp2 == MAP_FAILED, "adv_mmap5", "errno %d\n", errno)) {
+		munmap(tmp1, 4 * page_size); /* unmap page 1 */
+		goto cleanup;
+	}
+	CHECK(tmp1 != tmp2, "adv_mmap6", "tmp1: %p, tmp2: %p\n", tmp1, tmp2);
+
+	map_data = tmp2;
+	CHECK_FAIL(bss_data->in_val != 321);
+	CHECK_FAIL(bss_data->out_val != 321);
+	CHECK_FAIL(skel->bss->in_val != 321);
+	CHECK_FAIL(skel->bss->out_val != 321);
+	CHECK_FAIL(map_data->val[0] != 111);
+	CHECK_FAIL(map_data->val[1] != 222);
+	CHECK_FAIL(map_data->val[2] != 321);
+	CHECK_FAIL(map_data->val[far] != 3 * 321);
+
+	munmap(tmp2, 4 * page_size);
+
+	/* map all 4 pages, but with pg_off=1 page, should fail */
+	tmp1 = mmap(NULL, 4 * page_size, PROT_READ, MAP_SHARED | MAP_FIXED,
+		    data_map_fd, page_size /* initial page shift */);
+	if (CHECK(tmp1 != MAP_FAILED, "adv_mmap7", "unexpected success")) {
+		munmap(tmp1, 4 * page_size);
+		goto cleanup;
+	}
+
+	tmp1 = mmap(NULL, map_sz, PROT_READ, MAP_SHARED, data_map_fd, 0);
+	if (CHECK(tmp1 == MAP_FAILED, "last_mmap", "failed %d\n", errno))
+		goto cleanup;
+
+	test_mmap__destroy(skel);
+	skel = NULL;
+	CHECK_FAIL(munmap(bss_mmaped, bss_sz));
+	bss_mmaped = NULL;
+	CHECK_FAIL(munmap(map_mmaped, map_sz));
+	map_mmaped = NULL;
+
+	/* map should be still held by active mmap */
+	tmp_fd = bpf_map_get_fd_by_id(data_map_id);
+	if (CHECK(tmp_fd < 0, "get_map_by_id", "failed %d\n", errno)) {
+		munmap(tmp1, map_sz);
+		goto cleanup;
+	}
+	close(tmp_fd);
+
+	/* this should release data map finally */
+	munmap(tmp1, map_sz);
+
+	/* we need to wait for RCU grace period */
+	for (i = 0; i < 10000; i++) {
+		__u32 id = data_map_id - 1;
+		if (bpf_map_get_next_id(id, &id) || id > data_map_id)
+			break;
+		usleep(1);
+	}
+
+	/* should fail to get map FD by non-existing ID */
+	tmp_fd = bpf_map_get_fd_by_id(data_map_id);
+	if (CHECK(tmp_fd >= 0, "get_map_by_id_after",
+		  "unexpectedly succeeded %d\n", tmp_fd)) {
+		close(tmp_fd);
+		goto cleanup;
+	}
+
+cleanup:
+	if (bss_mmaped)
+		CHECK_FAIL(munmap(bss_mmaped, bss_sz));
+	if (map_mmaped)
+		CHECK_FAIL(munmap(map_mmaped, map_sz));
+	test_mmap__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/modify_return.c b/tools/testing/selftests/bpf/prog_tests/modify_return.c
new file mode 100644
index 000000000000..a70c99c2f8c8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/modify_return.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include "modify_return.skel.h"
+
+#define LOWER(x) ((x) & 0xffff)
+#define UPPER(x) ((x) >> 16)
+
+
+static void run_test(__u32 input_retval, __u16 want_side_effect, __s16 want_ret)
+{
+	struct modify_return *skel = NULL;
+	int err, prog_fd;
+	__u16 side_effect;
+	__s16 ret;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	skel = modify_return__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	err = modify_return__attach(skel);
+	if (!ASSERT_OK(err, "modify_return__attach failed"))
+		goto cleanup;
+
+	skel->bss->input_retval = input_retval;
+	prog_fd = bpf_program__fd(skel->progs.fmod_ret_test);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+
+	side_effect = UPPER(topts.retval);
+	ret = LOWER(topts.retval);
+
+	ASSERT_EQ(ret, want_ret, "test_run ret");
+	ASSERT_EQ(side_effect, want_side_effect, "modify_return side_effect");
+	ASSERT_EQ(skel->bss->fentry_result, 1, "modify_return fentry_result");
+	ASSERT_EQ(skel->bss->fexit_result, 1, "modify_return fexit_result");
+	ASSERT_EQ(skel->bss->fmod_ret_result, 1, "modify_return fmod_ret_result");
+
+	ASSERT_EQ(skel->bss->fentry_result2, 1, "modify_return fentry_result2");
+	ASSERT_EQ(skel->bss->fexit_result2, 1, "modify_return fexit_result2");
+	ASSERT_EQ(skel->bss->fmod_ret_result2, 1, "modify_return fmod_ret_result2");
+
+cleanup:
+	modify_return__destroy(skel);
+}
+
+/* TODO: conflict with get_func_ip_test */
+void serial_test_modify_return(void)
+{
+	run_test(0 /* input_retval */,
+		 2 /* want_side_effect */,
+		 33 /* want_ret */);
+	run_test(-EINVAL /* input_retval */,
+		 0 /* want_side_effect */,
+		 -EINVAL * 2 /* want_ret */);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/module_attach.c b/tools/testing/selftests/bpf/prog_tests/module_attach.c
new file mode 100644
index 000000000000..70fa7ae93173
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/module_attach.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <stdbool.h>
+#include "test_module_attach.skel.h"
+#include "testing_helpers.h"
+
+static int duration;
+
+static int trigger_module_test_writable(int *val)
+{
+	int fd, err;
+	char buf[65];
+	ssize_t rd;
+
+	fd = open(BPF_TESTMOD_TEST_FILE, O_RDONLY);
+	err = -errno;
+	if (!ASSERT_GE(fd, 0, "testmode_file_open"))
+		return err;
+
+	rd = read(fd, buf, sizeof(buf) - 1);
+	err = -errno;
+	if (!ASSERT_GT(rd, 0, "testmod_file_rd_val")) {
+		close(fd);
+		return err;
+	}
+
+	buf[rd] = '\0';
+	*val = strtol(buf, NULL, 0);
+	close(fd);
+
+	return 0;
+}
+
+void test_module_attach(void)
+{
+	const int READ_SZ = 456;
+	const int WRITE_SZ = 457;
+	struct test_module_attach* skel;
+	struct test_module_attach__bss *bss;
+	struct bpf_link *link;
+	int err;
+	int writable_val = 0;
+
+	skel = test_module_attach__open();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	err = bpf_program__set_attach_target(skel->progs.handle_fentry_manual,
+					     0, "bpf_testmod_test_read");
+	ASSERT_OK(err, "set_attach_target");
+
+	err = bpf_program__set_attach_target(skel->progs.handle_fentry_explicit_manual,
+					     0, "bpf_testmod:bpf_testmod_test_read");
+	ASSERT_OK(err, "set_attach_target_explicit");
+
+	err = test_module_attach__load(skel);
+	if (CHECK(err, "skel_load", "failed to load skeleton\n"))
+		return;
+
+	bss = skel->bss;
+
+	err = test_module_attach__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	ASSERT_OK(trigger_module_test_read(READ_SZ), "trigger_read");
+	ASSERT_OK(trigger_module_test_write(WRITE_SZ), "trigger_write");
+
+	ASSERT_EQ(bss->raw_tp_read_sz, READ_SZ, "raw_tp");
+	ASSERT_EQ(bss->raw_tp_bare_write_sz, WRITE_SZ, "raw_tp_bare");
+	ASSERT_EQ(bss->tp_btf_read_sz, READ_SZ, "tp_btf");
+	ASSERT_EQ(bss->fentry_read_sz, READ_SZ, "fentry");
+	ASSERT_EQ(bss->fentry_manual_read_sz, READ_SZ, "fentry_manual");
+	ASSERT_EQ(bss->fentry_explicit_read_sz, READ_SZ, "fentry_explicit");
+	ASSERT_EQ(bss->fentry_explicit_manual_read_sz, READ_SZ, "fentry_explicit_manual");
+	ASSERT_EQ(bss->fexit_read_sz, READ_SZ, "fexit");
+	ASSERT_EQ(bss->fexit_ret, -EIO, "fexit_tet");
+	ASSERT_EQ(bss->fmod_ret_read_sz, READ_SZ, "fmod_ret");
+
+	bss->raw_tp_writable_bare_early_ret = true;
+	bss->raw_tp_writable_bare_out_val = 0xf1f2f3f4;
+	ASSERT_OK(trigger_module_test_writable(&writable_val),
+		  "trigger_writable");
+	ASSERT_EQ(bss->raw_tp_writable_bare_in_val, 1024, "writable_test_in");
+	ASSERT_EQ(bss->raw_tp_writable_bare_out_val, writable_val,
+		  "writable_test_out");
+
+	test_module_attach__detach(skel);
+
+	/* attach fentry/fexit and make sure it gets module reference */
+	link = bpf_program__attach(skel->progs.handle_fentry);
+	if (!ASSERT_OK_PTR(link, "attach_fentry"))
+		goto cleanup;
+
+	ASSERT_ERR(unload_bpf_testmod(false), "unload_bpf_testmod");
+	bpf_link__destroy(link);
+
+	link = bpf_program__attach(skel->progs.handle_fexit);
+	if (!ASSERT_OK_PTR(link, "attach_fexit"))
+		goto cleanup;
+
+	ASSERT_ERR(unload_bpf_testmod(false), "unload_bpf_testmod");
+	bpf_link__destroy(link);
+
+	link = bpf_program__attach(skel->progs.kprobe_multi);
+	if (!ASSERT_OK_PTR(link, "attach_kprobe_multi"))
+		goto cleanup;
+
+	ASSERT_ERR(unload_bpf_testmod(false), "unload_bpf_testmod");
+	bpf_link__destroy(link);
+
+cleanup:
+	test_module_attach__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c
new file mode 100644
index 000000000000..bea05f78de5f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/module_fentry_shadow.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Red Hat */
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "bpf/libbpf_internal.h"
+#include "cgroup_helpers.h"
+#include "bpf_util.h"
+
+static const char *module_name = "bpf_testmod";
+static const char *symbol_name = "bpf_fentry_shadow_test";
+
+static int get_bpf_testmod_btf_fd(void)
+{
+	struct bpf_btf_info info;
+	char name[64];
+	__u32 id = 0, len;
+	int err, fd;
+
+	while (true) {
+		err = bpf_btf_get_next_id(id, &id);
+		if (err) {
+			log_err("failed to iterate BTF objects");
+			return err;
+		}
+
+		fd = bpf_btf_get_fd_by_id(id);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				continue; /* expected race: BTF was unloaded */
+			err = -errno;
+			log_err("failed to get FD for BTF object #%d", id);
+			return err;
+		}
+
+		len = sizeof(info);
+		memset(&info, 0, sizeof(info));
+		info.name = ptr_to_u64(name);
+		info.name_len = sizeof(name);
+
+		err = bpf_obj_get_info_by_fd(fd, &info, &len);
+		if (err) {
+			err = -errno;
+			log_err("failed to get info for BTF object #%d", id);
+			close(fd);
+			return err;
+		}
+
+		if (strcmp(name, module_name) == 0)
+			return fd;
+
+		close(fd);
+	}
+	return -ENOENT;
+}
+
+void test_module_fentry_shadow(void)
+{
+	struct btf *vmlinux_btf = NULL, *mod_btf = NULL;
+	int err, i;
+	int btf_fd[2] = {};
+	int prog_fd[2] = {};
+	int link_fd[2] = {};
+	__s32 btf_id[2] = {};
+
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	LIBBPF_OPTS(bpf_prog_load_opts, load_opts,
+		.expected_attach_type = BPF_TRACE_FENTRY,
+	);
+
+	const struct bpf_insn trace_program[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+
+	vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(vmlinux_btf, "load_vmlinux_btf"))
+		return;
+
+	btf_fd[1] = get_bpf_testmod_btf_fd();
+	if (!ASSERT_GE(btf_fd[1], 0, "get_bpf_testmod_btf_fd"))
+		goto out;
+
+	mod_btf = btf_get_from_fd(btf_fd[1], vmlinux_btf);
+	if (!ASSERT_OK_PTR(mod_btf, "btf_get_from_fd"))
+		goto out;
+
+	btf_id[0] = btf__find_by_name_kind(vmlinux_btf, symbol_name, BTF_KIND_FUNC);
+	if (!ASSERT_GT(btf_id[0], 0, "btf_find_by_name"))
+		goto out;
+
+	btf_id[1] = btf__find_by_name_kind(mod_btf, symbol_name, BTF_KIND_FUNC);
+	if (!ASSERT_GT(btf_id[1], 0, "btf_find_by_name"))
+		goto out;
+
+	for (i = 0; i < 2; i++) {
+		load_opts.attach_btf_id = btf_id[i];
+		load_opts.attach_btf_obj_fd = btf_fd[i];
+		prog_fd[i] = bpf_prog_load(BPF_PROG_TYPE_TRACING, NULL, "GPL",
+					   trace_program,
+					   ARRAY_SIZE(trace_program),
+					   &load_opts);
+		if (!ASSERT_GE(prog_fd[i], 0, "bpf_prog_load"))
+			goto out;
+
+		/* If the verifier incorrectly resolves addresses of the
+		 * shadowed functions and uses the same address for both the
+		 * vmlinux and the bpf_testmod functions, this will fail on
+		 * attempting to create two trampolines for the same address,
+		 * which is forbidden.
+		 */
+		link_fd[i] = bpf_link_create(prog_fd[i], 0, BPF_TRACE_FENTRY, NULL);
+		if (!ASSERT_GE(link_fd[i], 0, "bpf_link_create"))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(prog_fd[0], NULL);
+	ASSERT_OK(err, "running test");
+
+out:
+	btf__free(vmlinux_btf);
+	btf__free(mod_btf);
+	for (i = 0; i < 2; i++) {
+		if (btf_fd[i])
+			close(btf_fd[i]);
+		if (prog_fd[i] > 0)
+			close(prog_fd[i]);
+		if (link_fd[i] > 0)
+			close(link_fd[i]);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/mptcp.c b/tools/testing/selftests/bpf/prog_tests/mptcp.c
new file mode 100644
index 000000000000..8fade8bdc451
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/mptcp.c
@@ -0,0 +1,587 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Tessares SA. */
+/* Copyright (c) 2022, SUSE. */
+
+#include <linux/const.h>
+#include <netinet/in.h>
+#include <test_progs.h>
+#include <unistd.h>
+#include <errno.h>
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "mptcp_sock.skel.h"
+#include "mptcpify.skel.h"
+#include "mptcp_subflow.skel.h"
+#include "mptcp_sockmap.skel.h"
+
+#define NS_TEST "mptcp_ns"
+#define ADDR_1	"10.0.1.1"
+#define ADDR_2	"10.0.1.2"
+#define PORT_1	10001
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+
+#ifndef SOL_MPTCP
+#define SOL_MPTCP 284
+#endif
+#ifndef MPTCP_INFO
+#define MPTCP_INFO		1
+#endif
+#ifndef MPTCP_INFO_FLAG_FALLBACK
+#define MPTCP_INFO_FLAG_FALLBACK		_BITUL(0)
+#endif
+#ifndef MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED
+#define MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED	_BITUL(1)
+#endif
+
+#ifndef TCP_CA_NAME_MAX
+#define TCP_CA_NAME_MAX	16
+#endif
+
+struct __mptcp_info {
+	__u8	mptcpi_subflows;
+	__u8	mptcpi_add_addr_signal;
+	__u8	mptcpi_add_addr_accepted;
+	__u8	mptcpi_subflows_max;
+	__u8	mptcpi_add_addr_signal_max;
+	__u8	mptcpi_add_addr_accepted_max;
+	__u32	mptcpi_flags;
+	__u32	mptcpi_token;
+	__u64	mptcpi_write_seq;
+	__u64	mptcpi_snd_una;
+	__u64	mptcpi_rcv_nxt;
+	__u8	mptcpi_local_addr_used;
+	__u8	mptcpi_local_addr_max;
+	__u8	mptcpi_csum_enabled;
+	__u32	mptcpi_retransmits;
+	__u64	mptcpi_bytes_retrans;
+	__u64	mptcpi_bytes_sent;
+	__u64	mptcpi_bytes_received;
+	__u64	mptcpi_bytes_acked;
+};
+
+struct mptcp_storage {
+	__u32 invoked;
+	__u32 is_mptcp;
+	struct sock *sk;
+	__u32 token;
+	struct sock *first;
+	char ca_name[TCP_CA_NAME_MAX];
+};
+
+static int start_mptcp_server(int family, const char *addr_str, __u16 port,
+			      int timeout_ms)
+{
+	struct network_helper_opts opts = {
+		.timeout_ms	= timeout_ms,
+		.proto		= IPPROTO_MPTCP,
+	};
+
+	return start_server_str(family, SOCK_STREAM, addr_str, port, &opts);
+}
+
+static int verify_tsk(int map_fd, int client_fd)
+{
+	int err, cfd = client_fd;
+	struct mptcp_storage val;
+
+	err = bpf_map_lookup_elem(map_fd, &cfd, &val);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		return err;
+
+	if (!ASSERT_EQ(val.invoked, 1, "unexpected invoked count"))
+		err++;
+
+	if (!ASSERT_EQ(val.is_mptcp, 0, "unexpected is_mptcp"))
+		err++;
+
+	return err;
+}
+
+static void get_msk_ca_name(char ca_name[])
+{
+	size_t len;
+	int fd;
+
+	fd = open("/proc/sys/net/ipv4/tcp_congestion_control", O_RDONLY);
+	if (!ASSERT_GE(fd, 0, "failed to open tcp_congestion_control"))
+		return;
+
+	len = read(fd, ca_name, TCP_CA_NAME_MAX);
+	if (!ASSERT_GT(len, 0, "failed to read ca_name"))
+		goto err;
+
+	if (len > 0 && ca_name[len - 1] == '\n')
+		ca_name[len - 1] = '\0';
+
+err:
+	close(fd);
+}
+
+static int verify_msk(int map_fd, int client_fd, __u32 token)
+{
+	char ca_name[TCP_CA_NAME_MAX];
+	int err, cfd = client_fd;
+	struct mptcp_storage val;
+
+	if (!ASSERT_GT(token, 0, "invalid token"))
+		return -1;
+
+	get_msk_ca_name(ca_name);
+
+	err = bpf_map_lookup_elem(map_fd, &cfd, &val);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		return err;
+
+	if (!ASSERT_EQ(val.invoked, 1, "unexpected invoked count"))
+		err++;
+
+	if (!ASSERT_EQ(val.is_mptcp, 1, "unexpected is_mptcp"))
+		err++;
+
+	if (!ASSERT_EQ(val.token, token, "unexpected token"))
+		err++;
+
+	if (!ASSERT_EQ(val.first, val.sk, "unexpected first"))
+		err++;
+
+	if (!ASSERT_STRNEQ(val.ca_name, ca_name, TCP_CA_NAME_MAX, "unexpected ca_name"))
+		err++;
+
+	return err;
+}
+
+static int run_test(int cgroup_fd, int server_fd, bool is_mptcp)
+{
+	int client_fd, prog_fd, map_fd, err;
+	struct mptcp_sock *sock_skel;
+
+	sock_skel = mptcp_sock__open_and_load();
+	if (!ASSERT_OK_PTR(sock_skel, "skel_open_load"))
+		return libbpf_get_error(sock_skel);
+
+	err = mptcp_sock__attach(sock_skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	prog_fd = bpf_program__fd(sock_skel->progs._sockops);
+	map_fd = bpf_map__fd(sock_skel->maps.socket_storage_map);
+	err = bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_SOCK_OPS, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_GE(client_fd, 0, "connect to fd")) {
+		err = -EIO;
+		goto out;
+	}
+
+	err += is_mptcp ? verify_msk(map_fd, client_fd, sock_skel->bss->token) :
+			  verify_tsk(map_fd, client_fd);
+
+	close(client_fd);
+
+out:
+	mptcp_sock__destroy(sock_skel);
+	return err;
+}
+
+static void test_base(void)
+{
+	struct netns_obj *netns = NULL;
+	int server_fd, cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/mptcp");
+	if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup"))
+		return;
+
+	netns = netns_new(NS_TEST, true);
+	if (!ASSERT_OK_PTR(netns, "netns_new"))
+		goto fail;
+
+	/* without MPTCP */
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto with_mptcp;
+
+	ASSERT_OK(run_test(cgroup_fd, server_fd, false), "run_test tcp");
+
+	close(server_fd);
+
+with_mptcp:
+	/* with MPTCP */
+	server_fd = start_mptcp_server(AF_INET, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_mptcp_server"))
+		goto fail;
+
+	ASSERT_OK(run_test(cgroup_fd, server_fd, true), "run_test mptcp");
+
+	close(server_fd);
+
+fail:
+	netns_free(netns);
+	close(cgroup_fd);
+}
+
+static void send_byte(int fd)
+{
+	char b = 0x55;
+
+	ASSERT_EQ(write(fd, &b, sizeof(b)), 1, "send single byte");
+}
+
+static int verify_mptcpify(int server_fd, int client_fd)
+{
+	struct __mptcp_info info;
+	socklen_t optlen;
+	int protocol;
+	int err = 0;
+
+	optlen = sizeof(protocol);
+	if (!ASSERT_OK(getsockopt(server_fd, SOL_SOCKET, SO_PROTOCOL, &protocol, &optlen),
+		       "getsockopt(SOL_PROTOCOL)"))
+		return -1;
+
+	if (!ASSERT_EQ(protocol, IPPROTO_MPTCP, "protocol isn't MPTCP"))
+		err++;
+
+	optlen = sizeof(info);
+	if (!ASSERT_OK(getsockopt(client_fd, SOL_MPTCP, MPTCP_INFO, &info, &optlen),
+		       "getsockopt(MPTCP_INFO)"))
+		return -1;
+
+	if (!ASSERT_GE(info.mptcpi_flags, 0, "unexpected mptcpi_flags"))
+		err++;
+	if (!ASSERT_FALSE(info.mptcpi_flags & MPTCP_INFO_FLAG_FALLBACK,
+			  "MPTCP fallback"))
+		err++;
+	if (!ASSERT_TRUE(info.mptcpi_flags & MPTCP_INFO_FLAG_REMOTE_KEY_RECEIVED,
+			 "no remote key received"))
+		err++;
+
+	return err;
+}
+
+static int run_mptcpify(int cgroup_fd)
+{
+	int server_fd, client_fd, err = 0;
+	struct mptcpify *mptcpify_skel;
+
+	mptcpify_skel = mptcpify__open_and_load();
+	if (!ASSERT_OK_PTR(mptcpify_skel, "skel_open_load"))
+		return libbpf_get_error(mptcpify_skel);
+
+	mptcpify_skel->bss->pid = getpid();
+
+	err = mptcpify__attach(mptcpify_skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	/* without MPTCP */
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server")) {
+		err = -EIO;
+		goto out;
+	}
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_GE(client_fd, 0, "connect to fd")) {
+		err = -EIO;
+		goto close_server;
+	}
+
+	send_byte(client_fd);
+
+	err = verify_mptcpify(server_fd, client_fd);
+
+	close(client_fd);
+close_server:
+	close(server_fd);
+out:
+	mptcpify__destroy(mptcpify_skel);
+	return err;
+}
+
+static void test_mptcpify(void)
+{
+	struct netns_obj *netns = NULL;
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/mptcpify");
+	if (!ASSERT_GE(cgroup_fd, 0, "test__join_cgroup"))
+		return;
+
+	netns = netns_new(NS_TEST, true);
+	if (!ASSERT_OK_PTR(netns, "netns_new"))
+		goto fail;
+
+	ASSERT_OK(run_mptcpify(cgroup_fd), "run_mptcpify");
+
+fail:
+	netns_free(netns);
+	close(cgroup_fd);
+}
+
+static int endpoint_init(char *flags)
+{
+	SYS(fail, "ip -net %s link add veth1 type veth peer name veth2", NS_TEST);
+	SYS(fail, "ip -net %s addr add %s/24 dev veth1", NS_TEST, ADDR_1);
+	SYS(fail, "ip -net %s link set dev veth1 up", NS_TEST);
+	SYS(fail, "ip -net %s addr add %s/24 dev veth2", NS_TEST, ADDR_2);
+	SYS(fail, "ip -net %s link set dev veth2 up", NS_TEST);
+	if (SYS_NOFAIL("ip -net %s mptcp endpoint add %s %s", NS_TEST, ADDR_2, flags)) {
+		printf("'ip mptcp' not supported, skip this test.\n");
+		test__skip();
+		goto fail;
+	}
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void wait_for_new_subflows(int fd)
+{
+	socklen_t len;
+	u8 subflows;
+	int err, i;
+
+	len = sizeof(subflows);
+	/* Wait max 5 sec for new subflows to be created */
+	for (i = 0; i < 50; i++) {
+		err = getsockopt(fd, SOL_MPTCP, MPTCP_INFO, &subflows, &len);
+		if (!err && subflows > 0)
+			break;
+
+		usleep(100000); /* 0.1s */
+	}
+}
+
+static void run_subflow(void)
+{
+	int server_fd, client_fd, err;
+	char new[TCP_CA_NAME_MAX];
+	char cc[TCP_CA_NAME_MAX];
+	unsigned int mark;
+	socklen_t len;
+
+	server_fd = start_mptcp_server(AF_INET, ADDR_1, PORT_1, 0);
+	if (!ASSERT_OK_FD(server_fd, "start_mptcp_server"))
+		return;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_OK_FD(client_fd, "connect_to_fd"))
+		goto close_server;
+
+	send_byte(client_fd);
+	wait_for_new_subflows(client_fd);
+
+	len = sizeof(mark);
+	err = getsockopt(client_fd, SOL_SOCKET, SO_MARK, &mark, &len);
+	if (ASSERT_OK(err, "getsockopt(client_fd, SO_MARK)"))
+		ASSERT_EQ(mark, 0, "mark");
+
+	len = sizeof(new);
+	err = getsockopt(client_fd, SOL_TCP, TCP_CONGESTION, new, &len);
+	if (ASSERT_OK(err, "getsockopt(client_fd, TCP_CONGESTION)")) {
+		get_msk_ca_name(cc);
+		ASSERT_STREQ(new, cc, "cc");
+	}
+
+	close(client_fd);
+close_server:
+	close(server_fd);
+}
+
+static void test_subflow(void)
+{
+	struct mptcp_subflow *skel;
+	struct netns_obj *netns;
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/mptcp_subflow");
+	if (!ASSERT_OK_FD(cgroup_fd, "join_cgroup: mptcp_subflow"))
+		return;
+
+	skel = mptcp_subflow__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_load: mptcp_subflow"))
+		goto close_cgroup;
+
+	skel->bss->pid = getpid();
+
+	skel->links.mptcp_subflow =
+		bpf_program__attach_cgroup(skel->progs.mptcp_subflow, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.mptcp_subflow, "attach mptcp_subflow"))
+		goto skel_destroy;
+
+	skel->links._getsockopt_subflow =
+		bpf_program__attach_cgroup(skel->progs._getsockopt_subflow, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links._getsockopt_subflow, "attach _getsockopt_subflow"))
+		goto skel_destroy;
+
+	netns = netns_new(NS_TEST, true);
+	if (!ASSERT_OK_PTR(netns, "netns_new: mptcp_subflow"))
+		goto skel_destroy;
+
+	if (endpoint_init("subflow") < 0)
+		goto close_netns;
+
+	run_subflow();
+
+close_netns:
+	netns_free(netns);
+skel_destroy:
+	mptcp_subflow__destroy(skel);
+close_cgroup:
+	close(cgroup_fd);
+}
+
+/* Test sockmap on MPTCP server handling non-mp-capable clients. */
+static void test_sockmap_with_mptcp_fallback(struct mptcp_sockmap *skel)
+{
+	int listen_fd = -1, client_fd1 = -1, client_fd2 = -1;
+	int server_fd1 = -1, server_fd2 = -1, sent, recvd;
+	char snd[9] = "123456789";
+	char rcv[10];
+
+	/* start server with MPTCP enabled */
+	listen_fd = start_mptcp_server(AF_INET, NULL, 0, 0);
+	if (!ASSERT_OK_FD(listen_fd, "sockmap-fb:start_mptcp_server"))
+		return;
+
+	skel->bss->trace_port = ntohs(get_socket_local_port(listen_fd));
+	skel->bss->sk_index = 0;
+	/* create client without MPTCP enabled */
+	client_fd1 = connect_to_fd_opts(listen_fd, NULL);
+	if (!ASSERT_OK_FD(client_fd1, "sockmap-fb:connect_to_fd"))
+		goto end;
+
+	server_fd1 = accept(listen_fd, NULL, 0);
+	skel->bss->sk_index = 1;
+	client_fd2 = connect_to_fd_opts(listen_fd, NULL);
+	if (!ASSERT_OK_FD(client_fd2, "sockmap-fb:connect_to_fd"))
+		goto end;
+
+	server_fd2 = accept(listen_fd, NULL, 0);
+	/* test normal redirect behavior: data sent by client_fd1 can be
+	 * received by client_fd2
+	 */
+	skel->bss->redirect_idx = 1;
+	sent = send(client_fd1, snd, sizeof(snd), 0);
+	if (!ASSERT_EQ(sent, sizeof(snd), "sockmap-fb:send(client_fd1)"))
+		goto end;
+
+	/* try to recv more bytes to avoid truncation check */
+	recvd = recv(client_fd2, rcv, sizeof(rcv), 0);
+	if (!ASSERT_EQ(recvd, sizeof(snd), "sockmap-fb:recv(client_fd2)"))
+		goto end;
+
+end:
+	if (client_fd1 >= 0)
+		close(client_fd1);
+	if (client_fd2 >= 0)
+		close(client_fd2);
+	if (server_fd1 >= 0)
+		close(server_fd1);
+	if (server_fd2 >= 0)
+		close(server_fd2);
+	close(listen_fd);
+}
+
+/* Test sockmap rejection of MPTCP sockets - both server and client sides. */
+static void test_sockmap_reject_mptcp(struct mptcp_sockmap *skel)
+{
+	int listen_fd = -1, server_fd = -1, client_fd1 = -1;
+	int err, zero = 0;
+
+	/* start server with MPTCP enabled */
+	listen_fd = start_mptcp_server(AF_INET, NULL, 0, 0);
+	if (!ASSERT_OK_FD(listen_fd, "start_mptcp_server"))
+		return;
+
+	skel->bss->trace_port = ntohs(get_socket_local_port(listen_fd));
+	skel->bss->sk_index = 0;
+	/* create client with MPTCP enabled */
+	client_fd1 = connect_to_fd(listen_fd, 0);
+	if (!ASSERT_OK_FD(client_fd1, "connect_to_fd client_fd1"))
+		goto end;
+
+	/* bpf_sock_map_update() called from sockops should reject MPTCP sk */
+	if (!ASSERT_EQ(skel->bss->helper_ret, -EOPNOTSUPP, "should reject"))
+		goto end;
+
+	server_fd = accept(listen_fd, NULL, 0);
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.sock_map),
+				  &zero, &server_fd, BPF_NOEXIST);
+	if (!ASSERT_EQ(err, -EOPNOTSUPP, "server should be disallowed"))
+		goto end;
+
+	/* MPTCP client should also be disallowed */
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.sock_map),
+				  &zero, &client_fd1, BPF_NOEXIST);
+	if (!ASSERT_EQ(err, -EOPNOTSUPP, "client should be disallowed"))
+		goto end;
+end:
+	if (client_fd1 >= 0)
+		close(client_fd1);
+	if (server_fd >= 0)
+		close(server_fd);
+	close(listen_fd);
+}
+
+static void test_mptcp_sockmap(void)
+{
+	struct mptcp_sockmap *skel;
+	struct netns_obj *netns;
+	int cgroup_fd, err;
+
+	cgroup_fd = test__join_cgroup("/mptcp_sockmap");
+	if (!ASSERT_OK_FD(cgroup_fd, "join_cgroup: mptcp_sockmap"))
+		return;
+
+	skel = mptcp_sockmap__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_load: mptcp_sockmap"))
+		goto close_cgroup;
+
+	skel->links.mptcp_sockmap_inject =
+		bpf_program__attach_cgroup(skel->progs.mptcp_sockmap_inject, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.mptcp_sockmap_inject, "attach sockmap"))
+		goto skel_destroy;
+
+	err = bpf_prog_attach(bpf_program__fd(skel->progs.mptcp_sockmap_redirect),
+			      bpf_map__fd(skel->maps.sock_map),
+			      BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach stream verdict"))
+		goto skel_destroy;
+
+	netns = netns_new(NS_TEST, true);
+	if (!ASSERT_OK_PTR(netns, "netns_new: mptcp_sockmap"))
+		goto skel_destroy;
+
+	if (endpoint_init("subflow") < 0)
+		goto close_netns;
+
+	test_sockmap_with_mptcp_fallback(skel);
+	test_sockmap_reject_mptcp(skel);
+
+close_netns:
+	netns_free(netns);
+skel_destroy:
+	mptcp_sockmap__destroy(skel);
+close_cgroup:
+	close(cgroup_fd);
+}
+
+void test_mptcp(void)
+{
+	if (test__start_subtest("base"))
+		test_base();
+	if (test__start_subtest("mptcpify"))
+		test_mptcpify();
+	if (test__start_subtest("subflow"))
+		test_subflow();
+	if (test__start_subtest("sockmap"))
+		test_mptcp_sockmap();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/nested_trust.c b/tools/testing/selftests/bpf/prog_tests/nested_trust.c
new file mode 100644
index 000000000000..54a112ad5f9c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/nested_trust.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "nested_trust_failure.skel.h"
+#include "nested_trust_success.skel.h"
+#include "nested_acquire.skel.h"
+
+void test_nested_trust(void)
+{
+	RUN_TESTS(nested_trust_success);
+	RUN_TESTS(nested_trust_failure);
+
+	if (env.has_testmod)
+		RUN_TESTS(nested_acquire);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/net_timestamping.c b/tools/testing/selftests/bpf/prog_tests/net_timestamping.c
new file mode 100644
index 000000000000..dbfd87499b6b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/net_timestamping.c
@@ -0,0 +1,239 @@
+#include <linux/net_tstamp.h>
+#include <sys/time.h>
+#include <linux/errqueue.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "net_timestamping.skel.h"
+
+#define CG_NAME "/net-timestamping-test"
+#define NSEC_PER_SEC    1000000000LL
+
+static const char addr4_str[] = "127.0.0.1";
+static const char addr6_str[] = "::1";
+static struct net_timestamping *skel;
+static const int cfg_payload_len = 30;
+static struct timespec usr_ts;
+static u64 delay_tolerance_nsec = 10000000000; /* 10 seconds */
+int SK_TS_SCHED;
+int SK_TS_TXSW;
+int SK_TS_ACK;
+
+static int64_t timespec_to_ns64(struct timespec *ts)
+{
+	return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
+}
+
+static void validate_key(int tskey, int tstype)
+{
+	static int expected_tskey = -1;
+
+	if (tstype == SCM_TSTAMP_SCHED)
+		expected_tskey = cfg_payload_len - 1;
+
+	ASSERT_EQ(expected_tskey, tskey, "tskey mismatch");
+
+	expected_tskey = tskey;
+}
+
+static void validate_timestamp(struct timespec *cur, struct timespec *prev)
+{
+	int64_t cur_ns, prev_ns;
+
+	cur_ns = timespec_to_ns64(cur);
+	prev_ns = timespec_to_ns64(prev);
+
+	ASSERT_LT(cur_ns - prev_ns, delay_tolerance_nsec, "latency");
+}
+
+static void test_socket_timestamp(struct scm_timestamping *tss, int tstype,
+				  int tskey)
+{
+	static struct timespec prev_ts;
+
+	validate_key(tskey, tstype);
+
+	switch (tstype) {
+	case SCM_TSTAMP_SCHED:
+		validate_timestamp(&tss->ts[0], &usr_ts);
+		SK_TS_SCHED += 1;
+		break;
+	case SCM_TSTAMP_SND:
+		validate_timestamp(&tss->ts[0], &prev_ts);
+		SK_TS_TXSW += 1;
+		break;
+	case SCM_TSTAMP_ACK:
+		validate_timestamp(&tss->ts[0], &prev_ts);
+		SK_TS_ACK += 1;
+		break;
+	}
+
+	prev_ts = tss->ts[0];
+}
+
+static void test_recv_errmsg_cmsg(struct msghdr *msg)
+{
+	struct sock_extended_err *serr = NULL;
+	struct scm_timestamping *tss = NULL;
+	struct cmsghdr *cm;
+
+	for (cm = CMSG_FIRSTHDR(msg);
+	     cm && cm->cmsg_len;
+	     cm = CMSG_NXTHDR(msg, cm)) {
+		if (cm->cmsg_level == SOL_SOCKET &&
+		    cm->cmsg_type == SCM_TIMESTAMPING) {
+			tss = (void *)CMSG_DATA(cm);
+		} else if ((cm->cmsg_level == SOL_IP &&
+			    cm->cmsg_type == IP_RECVERR) ||
+			   (cm->cmsg_level == SOL_IPV6 &&
+			    cm->cmsg_type == IPV6_RECVERR) ||
+			   (cm->cmsg_level == SOL_PACKET &&
+			    cm->cmsg_type == PACKET_TX_TIMESTAMP)) {
+			serr = (void *)CMSG_DATA(cm);
+			ASSERT_EQ(serr->ee_origin, SO_EE_ORIGIN_TIMESTAMPING,
+				  "cmsg type");
+		}
+
+		if (serr && tss)
+			test_socket_timestamp(tss, serr->ee_info,
+					      serr->ee_data);
+	}
+}
+
+static bool socket_recv_errmsg(int fd)
+{
+	static char ctrl[1024 /* overprovision*/];
+	char data[cfg_payload_len];
+	static struct msghdr msg;
+	struct iovec entry;
+	int n = 0;
+
+	memset(&msg, 0, sizeof(msg));
+	memset(&entry, 0, sizeof(entry));
+	memset(ctrl, 0, sizeof(ctrl));
+
+	entry.iov_base = data;
+	entry.iov_len = cfg_payload_len;
+	msg.msg_iov = &entry;
+	msg.msg_iovlen = 1;
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = ctrl;
+	msg.msg_controllen = sizeof(ctrl);
+
+	n = recvmsg(fd, &msg, MSG_ERRQUEUE);
+	if (n == -1)
+		ASSERT_EQ(errno, EAGAIN, "recvmsg MSG_ERRQUEUE");
+
+	if (n >= 0)
+		test_recv_errmsg_cmsg(&msg);
+
+	return n == -1;
+}
+
+static void test_socket_timestamping(int fd)
+{
+	while (!socket_recv_errmsg(fd));
+
+	ASSERT_EQ(SK_TS_SCHED, 1, "SCM_TSTAMP_SCHED");
+	ASSERT_EQ(SK_TS_TXSW, 1, "SCM_TSTAMP_SND");
+	ASSERT_EQ(SK_TS_ACK, 1, "SCM_TSTAMP_ACK");
+
+	SK_TS_SCHED = 0;
+	SK_TS_TXSW = 0;
+	SK_TS_ACK = 0;
+}
+
+static void test_tcp(int family, bool enable_socket_timestamping)
+{
+	struct net_timestamping__bss *bss;
+	char buf[cfg_payload_len];
+	int sfd = -1, cfd = -1;
+	unsigned int sock_opt;
+	struct netns_obj *ns;
+	int cg_fd;
+	int ret;
+
+	cg_fd = test__join_cgroup(CG_NAME);
+	if (!ASSERT_OK_FD(cg_fd, "join cgroup"))
+		return;
+
+	ns = netns_new("net_timestamping_ns", true);
+	if (!ASSERT_OK_PTR(ns, "create ns"))
+		goto out;
+
+	skel = net_timestamping__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skel"))
+		goto out;
+
+	if (!ASSERT_OK(net_timestamping__attach(skel), "attach skel"))
+		goto out;
+
+	skel->links.skops_sockopt =
+		bpf_program__attach_cgroup(skel->progs.skops_sockopt, cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.skops_sockopt, "attach cgroup"))
+		goto out;
+
+	bss = skel->bss;
+	memset(bss, 0, sizeof(*bss));
+
+	skel->bss->monitored_pid = getpid();
+
+	sfd = start_server(family, SOCK_STREAM,
+			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
+	if (!ASSERT_OK_FD(sfd, "start_server"))
+		goto out;
+
+	cfd = connect_to_fd(sfd, 0);
+	if (!ASSERT_OK_FD(cfd, "connect_to_fd_server"))
+		goto out;
+
+	if (enable_socket_timestamping) {
+		sock_opt = SOF_TIMESTAMPING_SOFTWARE |
+			   SOF_TIMESTAMPING_OPT_ID |
+			   SOF_TIMESTAMPING_TX_SCHED |
+			   SOF_TIMESTAMPING_TX_SOFTWARE |
+			   SOF_TIMESTAMPING_TX_ACK;
+		ret = setsockopt(cfd, SOL_SOCKET, SO_TIMESTAMPING,
+				 (char *) &sock_opt, sizeof(sock_opt));
+		if (!ASSERT_OK(ret, "setsockopt SO_TIMESTAMPING"))
+			goto out;
+
+		ret = clock_gettime(CLOCK_REALTIME, &usr_ts);
+		if (!ASSERT_OK(ret, "get user time"))
+			goto out;
+	}
+
+	ret = write(cfd, buf, sizeof(buf));
+	if (!ASSERT_EQ(ret, sizeof(buf), "send to server"))
+		goto out;
+
+	if (enable_socket_timestamping)
+		test_socket_timestamping(cfd);
+
+	ASSERT_EQ(bss->nr_active, 1, "nr_active");
+	ASSERT_EQ(bss->nr_snd, 2, "nr_snd");
+	ASSERT_EQ(bss->nr_sched, 1, "nr_sched");
+	ASSERT_EQ(bss->nr_txsw, 1, "nr_txsw");
+	ASSERT_EQ(bss->nr_ack, 1, "nr_ack");
+
+out:
+	if (sfd >= 0)
+		close(sfd);
+	if (cfd >= 0)
+		close(cfd);
+	net_timestamping__destroy(skel);
+	netns_free(ns);
+	close(cg_fd);
+}
+
+void test_net_timestamping(void)
+{
+	if (test__start_subtest("INET4: bpf timestamping"))
+		test_tcp(AF_INET, false);
+	if (test__start_subtest("INET4: bpf and socket timestamping"))
+		test_tcp(AF_INET, true);
+	if (test__start_subtest("INET6: bpf timestamping"))
+		test_tcp(AF_INET6, false);
+	if (test__start_subtest("INET6: bpf and socket timestamping"))
+		test_tcp(AF_INET6, true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/netcnt.c b/tools/testing/selftests/bpf/prog_tests/netcnt.c
new file mode 100644
index 000000000000..c3333edd029f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/netcnt.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/sysinfo.h>
+#include <test_progs.h>
+#include "network_helpers.h"
+#include "netcnt_prog.skel.h"
+#include "netcnt_common.h"
+
+#define CG_NAME "/netcnt"
+
+void serial_test_netcnt(void)
+{
+	union percpu_net_cnt *percpu_netcnt = NULL;
+	struct bpf_cgroup_storage_key key;
+	int map_fd, percpu_map_fd;
+	struct netcnt_prog *skel;
+	unsigned long packets;
+	union net_cnt netcnt;
+	unsigned long bytes;
+	int cpu, nproc;
+	int cg_fd = -1;
+	char cmd[128];
+
+	skel = netcnt_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "netcnt_prog__open_and_load"))
+		return;
+
+	nproc = bpf_num_possible_cpus();
+	percpu_netcnt = malloc(sizeof(*percpu_netcnt) * nproc);
+	if (!ASSERT_OK_PTR(percpu_netcnt, "malloc(percpu_netcnt)"))
+		goto err;
+
+	cg_fd = test__join_cgroup(CG_NAME);
+	if (!ASSERT_GE(cg_fd, 0, "test__join_cgroup"))
+		goto err;
+
+	skel->links.bpf_nextcnt = bpf_program__attach_cgroup(skel->progs.bpf_nextcnt, cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.bpf_nextcnt,
+			   "attach_cgroup(bpf_nextcnt)"))
+		goto err;
+
+	snprintf(cmd, sizeof(cmd), "%s ::1 -A -c 10000 -q > /dev/null", ping_command(AF_INET6));
+	ASSERT_OK(system(cmd), cmd);
+
+	map_fd = bpf_map__fd(skel->maps.netcnt);
+	if (!ASSERT_OK(bpf_map_get_next_key(map_fd, NULL, &key), "bpf_map_get_next_key"))
+		goto err;
+
+	if (!ASSERT_OK(bpf_map_lookup_elem(map_fd, &key, &netcnt), "bpf_map_lookup_elem(netcnt)"))
+		goto err;
+
+	percpu_map_fd = bpf_map__fd(skel->maps.percpu_netcnt);
+	if (!ASSERT_OK(bpf_map_lookup_elem(percpu_map_fd, &key, &percpu_netcnt[0]),
+		       "bpf_map_lookup_elem(percpu_netcnt)"))
+		goto err;
+
+	/* Some packets can be still in per-cpu cache, but not more than
+	 * MAX_PERCPU_PACKETS.
+	 */
+	packets = netcnt.packets;
+	bytes = netcnt.bytes;
+	for (cpu = 0; cpu < nproc; cpu++) {
+		ASSERT_LE(percpu_netcnt[cpu].packets, MAX_PERCPU_PACKETS, "MAX_PERCPU_PACKETS");
+
+		packets += percpu_netcnt[cpu].packets;
+		bytes += percpu_netcnt[cpu].bytes;
+	}
+
+	/* No packets should be lost */
+	ASSERT_GE(packets, 10000, "packets");
+
+	/* Let's check that bytes counter matches the number of packets
+	 * multiplied by the size of ipv6 ICMP packet.
+	 */
+	ASSERT_GE(bytes, packets * 104, "bytes");
+
+err:
+	if (cg_fd != -1)
+		close(cg_fd);
+	free(percpu_netcnt);
+	netcnt_prog__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/netfilter_link_attach.c b/tools/testing/selftests/bpf/prog_tests/netfilter_link_attach.c
new file mode 100644
index 000000000000..2f52fa2641ba
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/netfilter_link_attach.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <netinet/in.h>
+#include <linux/netfilter.h>
+
+#include "test_progs.h"
+#include "test_netfilter_link_attach.skel.h"
+
+struct nf_link_test {
+	__u32 pf;
+	__u32 hooknum;
+	__s32 priority;
+	__u32 flags;
+
+	bool expect_success;
+	const char * const name;
+};
+
+static const struct nf_link_test nf_hook_link_tests[] = {
+	{ .name = "allzero", },
+	{ .pf = NFPROTO_NUMPROTO, .name = "invalid-pf", },
+	{ .pf = NFPROTO_IPV4, .hooknum = 42, .name = "invalid-hooknum", },
+	{ .pf = NFPROTO_IPV4, .priority = INT_MIN, .name = "invalid-priority-min", },
+	{ .pf = NFPROTO_IPV4, .priority = INT_MAX, .name = "invalid-priority-max", },
+	{ .pf = NFPROTO_IPV4, .flags = UINT_MAX, .name = "invalid-flags", },
+
+	{ .pf = NFPROTO_INET, .priority = 1, .name = "invalid-inet-not-supported", },
+
+	{
+		.pf = NFPROTO_IPV4,
+		.hooknum = NF_INET_POST_ROUTING,
+		.priority = -10000,
+		.flags = 0,
+		.expect_success = true,
+		.name = "attach ipv4",
+	},
+	{
+		.pf = NFPROTO_IPV6,
+		.hooknum = NF_INET_FORWARD,
+		.priority =  10001,
+		.flags = BPF_F_NETFILTER_IP_DEFRAG,
+		.expect_success = true,
+		.name = "attach ipv6",
+	},
+};
+
+static void verify_netfilter_link_info(struct bpf_link *link, const struct nf_link_test nf_expected)
+{
+	struct bpf_link_info info;
+	__u32 len = sizeof(info);
+	int err, fd;
+
+	memset(&info, 0, len);
+
+	fd = bpf_link__fd(link);
+	err = bpf_link_get_info_by_fd(fd, &info, &len);
+	ASSERT_OK(err, "get_link_info");
+
+	ASSERT_EQ(info.type, BPF_LINK_TYPE_NETFILTER, "info link type");
+	ASSERT_EQ(info.netfilter.pf, nf_expected.pf, "info nf protocol family");
+	ASSERT_EQ(info.netfilter.hooknum, nf_expected.hooknum, "info nf hooknum");
+	ASSERT_EQ(info.netfilter.priority, nf_expected.priority, "info nf priority");
+	ASSERT_EQ(info.netfilter.flags, nf_expected.flags, "info nf flags");
+}
+
+void test_netfilter_link_attach(void)
+{
+	struct test_netfilter_link_attach *skel;
+	struct bpf_program *prog;
+	LIBBPF_OPTS(bpf_netfilter_opts, opts);
+	int i;
+
+	skel = test_netfilter_link_attach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_netfilter_link_attach__open_and_load"))
+		goto out;
+
+	prog = skel->progs.nf_link_attach_test;
+	if (!ASSERT_OK_PTR(prog, "attach program"))
+		goto out;
+
+	for (i = 0; i < ARRAY_SIZE(nf_hook_link_tests); i++) {
+		struct bpf_link *link;
+
+		if (!test__start_subtest(nf_hook_link_tests[i].name))
+			continue;
+
+#define X(opts, m, i)	opts.m = nf_hook_link_tests[(i)].m
+		X(opts, pf, i);
+		X(opts, hooknum, i);
+		X(opts, priority, i);
+		X(opts, flags, i);
+#undef X
+		link = bpf_program__attach_netfilter(prog, &opts);
+		if (nf_hook_link_tests[i].expect_success) {
+			struct bpf_link *link2;
+
+			if (!ASSERT_OK_PTR(link, "program attach successful"))
+				continue;
+
+			verify_netfilter_link_info(link, nf_hook_link_tests[i]);
+
+			link2 = bpf_program__attach_netfilter(prog, &opts);
+			ASSERT_ERR_PTR(link2, "attach program with same pf/hook/priority");
+
+			if (!ASSERT_OK(bpf_link__destroy(link), "link destroy"))
+				break;
+
+			link2 = bpf_program__attach_netfilter(prog, &opts);
+			if (!ASSERT_OK_PTR(link2, "program reattach successful"))
+				continue;
+
+			verify_netfilter_link_info(link2, nf_hook_link_tests[i]);
+
+			if (!ASSERT_OK(bpf_link__destroy(link2), "link destroy"))
+				break;
+		} else {
+			ASSERT_ERR_PTR(link, "program load failure");
+		}
+	}
+
+out:
+	test_netfilter_link_attach__destroy(skel);
+}
+
diff --git a/tools/testing/selftests/bpf/prog_tests/netns_cookie.c b/tools/testing/selftests/bpf/prog_tests/netns_cookie.c
new file mode 100644
index 000000000000..e00cd34586dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/netns_cookie.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "netns_cookie_prog.skel.h"
+#include "network_helpers.h"
+
+#ifndef SO_NETNS_COOKIE
+#define SO_NETNS_COOKIE 71
+#endif
+
+#define loopback 1
+
+static int duration;
+
+void test_netns_cookie(void)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	int server_fd = -1, client_fd = -1, cgroup_fd = -1;
+	int err, val, ret, map, verdict, tc_fd;
+	struct netns_cookie_prog *skel;
+	uint64_t cookie_expected_value;
+	socklen_t vallen = sizeof(cookie_expected_value);
+	static const char send_msg[] = "message";
+
+	skel = netns_cookie_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	cgroup_fd = test__join_cgroup("/netns_cookie");
+	if (CHECK(cgroup_fd < 0, "join_cgroup", "cgroup creation failed\n"))
+		goto done;
+
+	skel->links.get_netns_cookie_sockops = bpf_program__attach_cgroup(
+		skel->progs.get_netns_cookie_sockops, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.get_netns_cookie_sockops, "prog_attach_sockops"))
+		goto done;
+
+	verdict = bpf_program__fd(skel->progs.get_netns_cookie_sk_msg);
+	map = bpf_map__fd(skel->maps.sock_map);
+	err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "prog_attach_sk_msg"))
+		goto done;
+
+	tc_fd = bpf_program__fd(skel->progs.get_netns_cookie_tcx);
+	err = bpf_prog_attach_opts(tc_fd, loopback, BPF_TCX_INGRESS, &opta);
+	if (!ASSERT_OK(err, "prog_attach_tcx"))
+		goto done;
+
+	skel->links.get_netns_cookie_cgroup_skb = bpf_program__attach_cgroup(
+		skel->progs.get_netns_cookie_cgroup_skb, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.get_netns_cookie_cgroup_skb, "prog_attach_cgroup_skb"))
+		goto cleanup_tc;
+
+	server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	if (CHECK(server_fd < 0, "start_server", "errno %d\n", errno))
+		goto cleanup_tc;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (CHECK(client_fd < 0, "connect_to_fd", "errno %d\n", errno))
+		goto cleanup_tc;
+
+	ret = send(client_fd, send_msg, sizeof(send_msg), 0);
+	if (CHECK(ret != sizeof(send_msg), "send(msg)", "ret:%d\n", ret))
+		goto cleanup_tc;
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sockops_netns_cookies),
+				  &client_fd, &val);
+	if (!ASSERT_OK(err, "map_lookup(sockops_netns_cookies)"))
+		goto cleanup_tc;
+
+	err = getsockopt(client_fd, SOL_SOCKET, SO_NETNS_COOKIE,
+			 &cookie_expected_value, &vallen);
+	if (!ASSERT_OK(err, "getsockopt"))
+		goto cleanup_tc;
+
+	ASSERT_EQ(val, cookie_expected_value, "cookie_value_sockops");
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sk_msg_netns_cookies),
+				  &client_fd, &val);
+	if (!ASSERT_OK(err, "map_lookup(sk_msg_netns_cookies)"))
+		goto cleanup_tc;
+
+	ASSERT_EQ(val, cookie_expected_value, "cookie_value_sk_msg");
+	ASSERT_EQ(skel->bss->tcx_init_netns_cookie, cookie_expected_value, "cookie_value_init_tcx");
+	ASSERT_EQ(skel->bss->tcx_netns_cookie, cookie_expected_value, "cookie_value_tcx");
+	ASSERT_EQ(skel->bss->cgroup_skb_init_netns_cookie, cookie_expected_value, "cookie_value_init_cgroup_skb");
+	ASSERT_EQ(skel->bss->cgroup_skb_netns_cookie, cookie_expected_value, "cookie_value_cgroup_skb");
+
+cleanup_tc:
+	err = bpf_prog_detach_opts(tc_fd, loopback, BPF_TCX_INGRESS, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+done:
+	if (server_fd != -1)
+		close(server_fd);
+	if (client_fd != -1)
+		close(client_fd);
+	if (cgroup_fd != -1)
+		close(cgroup_fd);
+	netns_cookie_prog__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c
new file mode 100644
index 000000000000..99c953f2be21
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ns_current_pid_tgid.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Carlos Neira cneirabustos@gmail.com */
+
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "test_ns_current_pid_tgid.skel.h"
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sched.h>
+#include <sys/wait.h>
+#include <sys/mount.h>
+#include <fcntl.h>
+#include "network_helpers.h"
+
+#define STACK_SIZE (1024 * 1024)
+static char child_stack[STACK_SIZE];
+
+static int get_pid_tgid(pid_t *pid, pid_t *tgid,
+			struct test_ns_current_pid_tgid__bss *bss)
+{
+	struct stat st;
+	int err;
+
+	*pid = sys_gettid();
+	*tgid = getpid();
+
+	err = stat("/proc/self/ns/pid", &st);
+	if (!ASSERT_OK(err, "stat /proc/self/ns/pid"))
+		return err;
+
+	bss->dev = st.st_dev;
+	bss->ino = st.st_ino;
+	bss->user_pid = 0;
+	bss->user_tgid = 0;
+	return 0;
+}
+
+static int test_current_pid_tgid_tp(void *args)
+{
+	struct test_ns_current_pid_tgid__bss  *bss;
+	struct test_ns_current_pid_tgid *skel;
+	int ret = -1, err;
+	pid_t tgid, pid;
+
+	skel = test_ns_current_pid_tgid__open();
+	if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open"))
+		return ret;
+
+	bpf_program__set_autoload(skel->progs.tp_handler, true);
+
+	err = test_ns_current_pid_tgid__load(skel);
+	if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load"))
+		goto cleanup;
+
+	bss = skel->bss;
+	if (get_pid_tgid(&pid, &tgid, bss))
+		goto cleanup;
+
+	err = test_ns_current_pid_tgid__attach(skel);
+	if (!ASSERT_OK(err, "test_ns_current_pid_tgid__attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+	if (!ASSERT_EQ(bss->user_pid, pid, "pid"))
+		goto cleanup;
+	if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid"))
+		goto cleanup;
+	ret = 0;
+
+cleanup:
+	test_ns_current_pid_tgid__destroy(skel);
+	return ret;
+}
+
+static int test_current_pid_tgid_cgrp(void *args)
+{
+	struct test_ns_current_pid_tgid__bss *bss;
+	struct test_ns_current_pid_tgid *skel;
+	int server_fd = -1, ret = -1, err;
+	int cgroup_fd = *(int *)args;
+	pid_t tgid, pid;
+
+	skel = test_ns_current_pid_tgid__open();
+	if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open"))
+		return ret;
+
+	bpf_program__set_autoload(skel->progs.cgroup_bind4, true);
+
+	err = test_ns_current_pid_tgid__load(skel);
+	if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load"))
+		goto cleanup;
+
+	bss = skel->bss;
+	if (get_pid_tgid(&pid, &tgid, bss))
+		goto cleanup;
+
+	skel->links.cgroup_bind4 = bpf_program__attach_cgroup(
+		skel->progs.cgroup_bind4, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.cgroup_bind4, "bpf_program__attach_cgroup"))
+		goto cleanup;
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(bss->user_pid, pid, "pid"))
+		goto cleanup;
+	if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid"))
+		goto cleanup;
+	ret = 0;
+
+cleanup:
+	if (server_fd >= 0)
+		close(server_fd);
+	test_ns_current_pid_tgid__destroy(skel);
+	return ret;
+}
+
+static int test_current_pid_tgid_sk_msg(void *args)
+{
+	int verdict, map, server_fd = -1, client_fd = -1;
+	struct test_ns_current_pid_tgid__bss *bss;
+	static const char send_msg[] = "message";
+	struct test_ns_current_pid_tgid *skel;
+	int ret = -1, err, key = 0;
+	pid_t tgid, pid;
+
+	skel = test_ns_current_pid_tgid__open();
+	if (!ASSERT_OK_PTR(skel, "test_ns_current_pid_tgid__open"))
+		return ret;
+
+	bpf_program__set_autoload(skel->progs.sk_msg, true);
+
+	err = test_ns_current_pid_tgid__load(skel);
+	if (!ASSERT_OK(err, "test_ns_current_pid_tgid__load"))
+		goto cleanup;
+
+	bss = skel->bss;
+	if (get_pid_tgid(&pid, &tgid, skel->bss))
+		goto cleanup;
+
+	verdict = bpf_program__fd(skel->progs.sk_msg);
+	map = bpf_map__fd(skel->maps.sock_map);
+	err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "prog_attach"))
+		goto cleanup;
+
+	server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto cleanup;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto cleanup;
+
+	err = bpf_map_update_elem(map, &key, &client_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "bpf_map_update_elem"))
+		goto cleanup;
+
+	err = send(client_fd, send_msg, sizeof(send_msg), 0);
+	if (!ASSERT_EQ(err, sizeof(send_msg), "send(msg)"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(bss->user_pid, pid, "pid"))
+		goto cleanup;
+	if (!ASSERT_EQ(bss->user_tgid, tgid, "tgid"))
+		goto cleanup;
+	ret = 0;
+
+cleanup:
+	if (server_fd >= 0)
+		close(server_fd);
+	if (client_fd >= 0)
+		close(client_fd);
+	test_ns_current_pid_tgid__destroy(skel);
+	return ret;
+}
+
+static void test_ns_current_pid_tgid_new_ns(int (*fn)(void *), void *arg)
+{
+	int wstatus;
+	pid_t cpid;
+
+	/* Create a process in a new namespace, this process
+	 * will be the init process of this new namespace hence will be pid 1.
+	 */
+	cpid = clone(fn, child_stack + STACK_SIZE,
+		     CLONE_NEWPID | SIGCHLD, arg);
+
+	if (!ASSERT_NEQ(cpid, -1, "clone"))
+		return;
+
+	if (!ASSERT_NEQ(waitpid(cpid, &wstatus, 0), -1, "waitpid"))
+		return;
+
+	if (!ASSERT_OK(WEXITSTATUS(wstatus), "newns_pidtgid"))
+		return;
+}
+
+/* TODO: use a different tracepoint */
+void serial_test_current_pid_tgid(void)
+{
+	if (test__start_subtest("root_ns_tp"))
+		test_current_pid_tgid_tp(NULL);
+	if (test__start_subtest("new_ns_tp"))
+		test_ns_current_pid_tgid_new_ns(test_current_pid_tgid_tp, NULL);
+}
+
+void test_ns_current_pid_tgid_cgrp(void)
+{
+	int cgroup_fd = test__join_cgroup("/sock_addr");
+
+	if (ASSERT_OK_FD(cgroup_fd, "join_cgroup")) {
+		test_ns_current_pid_tgid_new_ns(test_current_pid_tgid_cgrp, &cgroup_fd);
+		close(cgroup_fd);
+	}
+}
+
+void test_ns_current_pid_tgid_sk_msg(void)
+{
+	test_ns_current_pid_tgid_new_ns(test_current_pid_tgid_sk_msg, NULL);
+}
+
+
diff --git a/tools/testing/selftests/bpf/prog_tests/obj_name.c b/tools/testing/selftests/bpf/prog_tests/obj_name.c
new file mode 100644
index 000000000000..7093edca6e08
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/obj_name.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_obj_name(void)
+{
+	struct {
+		const char *name;
+		int success;
+		int expected_errno;
+	} tests[] = {
+		{ "", 1, 0 },
+		{ "_123456789ABCDE", 1, 0 },
+		{ "_123456789ABCDEF", 0, EINVAL },
+		{ "_123456789ABCD\n", 0, EINVAL },
+	};
+	struct bpf_insn prog[] = {
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	__u32 duration = 0;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		size_t name_len = strlen(tests[i].name) + 1;
+		union bpf_attr attr;
+		size_t ncopy;
+		int fd;
+
+		/* test different attr.prog_name during BPF_PROG_LOAD */
+		ncopy = name_len < sizeof(attr.prog_name) ?
+			name_len : sizeof(attr.prog_name);
+		bzero(&attr, sizeof(attr));
+		attr.prog_type = BPF_PROG_TYPE_SCHED_CLS;
+		attr.insn_cnt = 2;
+		attr.insns = ptr_to_u64(prog);
+		attr.license = ptr_to_u64("");
+		memcpy(attr.prog_name, tests[i].name, ncopy);
+
+		fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+		CHECK((tests[i].success && fd < 0) ||
+		      (!tests[i].success && fd >= 0) ||
+		      (!tests[i].success && errno != tests[i].expected_errno),
+		      "check-bpf-prog-name",
+		      "fd %d(%d) errno %d(%d)\n",
+		       fd, tests[i].success, errno, tests[i].expected_errno);
+
+		if (fd >= 0)
+			close(fd);
+
+		/* test different attr.map_name during BPF_MAP_CREATE */
+		ncopy = name_len < sizeof(attr.map_name) ?
+			name_len : sizeof(attr.map_name);
+		bzero(&attr, sizeof(attr));
+		attr.map_type = BPF_MAP_TYPE_ARRAY;
+		attr.key_size = 4;
+		attr.value_size = 4;
+		attr.max_entries = 1;
+		attr.map_flags = 0;
+		memcpy(attr.map_name, tests[i].name, ncopy);
+		fd = syscall(__NR_bpf, BPF_MAP_CREATE, &attr, sizeof(attr));
+		CHECK((tests[i].success && fd < 0) ||
+		      (!tests[i].success && fd >= 0) ||
+		      (!tests[i].success && errno != tests[i].expected_errno),
+		      "check-bpf-map-name",
+		      "fd %d(%d) errno %d(%d)\n",
+		      fd, tests[i].success, errno, tests[i].expected_errno);
+
+		if (fd >= 0)
+			close(fd);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/parse_tcp_hdr_opt.c b/tools/testing/selftests/bpf/prog_tests/parse_tcp_hdr_opt.c
new file mode 100644
index 000000000000..e9c07d561ded
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/parse_tcp_hdr_opt.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_parse_tcp_hdr_opt.skel.h"
+#include "test_parse_tcp_hdr_opt_dynptr.skel.h"
+#include "test_tcp_hdr_options.h"
+
+struct test_pkt {
+	struct ipv6_packet pk6_v6;
+	u8 options[16];
+} __packed;
+
+struct test_pkt pkt = {
+	.pk6_v6.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+	.pk6_v6.iph.nexthdr = IPPROTO_TCP,
+	.pk6_v6.iph.payload_len = __bpf_constant_htons(MAGIC_BYTES),
+	.pk6_v6.tcp.urg_ptr = 123,
+	.pk6_v6.tcp.doff = 9, /* 16 bytes of options */
+
+	.options = {
+		TCPOPT_MSS, 4, 0x05, 0xB4, TCPOPT_NOP, TCPOPT_NOP,
+		0, 6, 0xBB, 0xBB, 0xBB, 0xBB, TCPOPT_EOL
+	},
+};
+
+static void test_parse_opt(void)
+{
+	struct test_parse_tcp_hdr_opt *skel;
+	struct bpf_program *prog;
+	char buf[128];
+	int err;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt,
+		    .data_size_in = sizeof(pkt),
+		    .data_out = buf,
+		    .data_size_out = sizeof(buf),
+		    .repeat = 3,
+	);
+
+	skel = test_parse_tcp_hdr_opt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	pkt.options[6] = skel->rodata->tcp_hdr_opt_kind_tpr;
+	prog = skel->progs.xdp_ingress_v6;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(prog), &topts);
+	ASSERT_OK(err, "ipv6 test_run");
+	ASSERT_EQ(topts.retval, XDP_PASS, "ipv6 test_run retval");
+	ASSERT_EQ(skel->bss->server_id, 0xBBBBBBBB, "server id");
+
+	test_parse_tcp_hdr_opt__destroy(skel);
+}
+
+static void test_parse_opt_dynptr(void)
+{
+	struct test_parse_tcp_hdr_opt_dynptr *skel;
+	struct bpf_program *prog;
+	char buf[128];
+	int err;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt,
+		    .data_size_in = sizeof(pkt),
+		    .data_out = buf,
+		    .data_size_out = sizeof(buf),
+		    .repeat = 3,
+	);
+
+	skel = test_parse_tcp_hdr_opt_dynptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	pkt.options[6] = skel->rodata->tcp_hdr_opt_kind_tpr;
+	prog = skel->progs.xdp_ingress_v6;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(prog), &topts);
+	ASSERT_OK(err, "ipv6 test_run");
+	ASSERT_EQ(topts.retval, XDP_PASS, "ipv6 test_run retval");
+	ASSERT_EQ(skel->bss->server_id, 0xBBBBBBBB, "server id");
+
+	test_parse_tcp_hdr_opt_dynptr__destroy(skel);
+}
+
+void test_parse_tcp_hdr_opt(void)
+{
+	if (test__start_subtest("parse_tcp_hdr_opt"))
+		test_parse_opt();
+	if (test__start_subtest("parse_tcp_hdr_opt_dynptr"))
+		test_parse_opt_dynptr();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pe_preserve_elems.c b/tools/testing/selftests/bpf/prog_tests/pe_preserve_elems.c
new file mode 100644
index 000000000000..673d38395253
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pe_preserve_elems.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include <linux/bpf.h>
+#include "test_pe_preserve_elems.skel.h"
+
+static int duration;
+
+static void test_one_map(struct bpf_map *map, struct bpf_program *prog,
+			 bool has_share_pe)
+{
+	int err, key = 0, pfd = -1, mfd = bpf_map__fd(map);
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct perf_event_attr attr = {
+		.size = sizeof(struct perf_event_attr),
+		.type = PERF_TYPE_SOFTWARE,
+		.config = PERF_COUNT_SW_CPU_CLOCK,
+	};
+
+	pfd = syscall(__NR_perf_event_open, &attr, 0 /* pid */,
+		      -1 /* cpu 0 */, -1 /* group id */, 0 /* flags */);
+	if (CHECK(pfd < 0, "perf_event_open", "failed\n"))
+		return;
+
+	err = bpf_map_update_elem(mfd, &key, &pfd, BPF_ANY);
+	close(pfd);
+	if (CHECK(err < 0, "bpf_map_update_elem", "failed\n"))
+		return;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(prog), &opts);
+	if (CHECK(err < 0, "bpf_prog_test_run_opts", "failed\n"))
+		return;
+	if (CHECK(opts.retval != 0, "bpf_perf_event_read_value",
+		  "failed with %d\n", opts.retval))
+		return;
+
+	/* closing mfd, prog still holds a reference on map */
+	close(mfd);
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(prog), &opts);
+	if (CHECK(err < 0, "bpf_prog_test_run_opts", "failed\n"))
+		return;
+
+	if (has_share_pe) {
+		CHECK(opts.retval != 0, "bpf_perf_event_read_value",
+		      "failed with %d\n", opts.retval);
+	} else {
+		CHECK(opts.retval != -ENOENT, "bpf_perf_event_read_value",
+		      "should have failed with %d, but got %d\n", -ENOENT,
+		      opts.retval);
+	}
+}
+
+void test_pe_preserve_elems(void)
+{
+	struct test_pe_preserve_elems *skel;
+
+	skel = test_pe_preserve_elems__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	test_one_map(skel->maps.array_1, skel->progs.read_array_1, false);
+	test_one_map(skel->maps.array_2, skel->progs.read_array_2, true);
+
+	test_pe_preserve_elems__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c
new file mode 100644
index 000000000000..343da65864d6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/percpu_alloc.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "percpu_alloc_array.skel.h"
+#include "percpu_alloc_cgrp_local_storage.skel.h"
+#include "percpu_alloc_fail.skel.h"
+
+static void test_array(void)
+{
+	struct percpu_alloc_array *skel;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	skel = percpu_alloc_array__open();
+	if (!ASSERT_OK_PTR(skel, "percpu_alloc_array__open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.test_array_map_1, true);
+	bpf_program__set_autoload(skel->progs.test_array_map_2, true);
+	bpf_program__set_autoload(skel->progs.test_array_map_3, true);
+	bpf_program__set_autoload(skel->progs.test_array_map_4, true);
+
+	skel->bss->my_pid = getpid();
+	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
+
+	err = percpu_alloc_array__load(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_array__load"))
+		goto out;
+
+	err = percpu_alloc_array__attach(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_array__attach"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.test_array_map_1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run array_map 1-4");
+	ASSERT_EQ(topts.retval, 0, "test_run array_map 1-4");
+	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
+	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
+out:
+	percpu_alloc_array__destroy(skel);
+}
+
+static void test_array_sleepable(void)
+{
+	struct percpu_alloc_array *skel;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	skel = percpu_alloc_array__open();
+	if (!ASSERT_OK_PTR(skel, "percpu_alloc__open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.test_array_map_10, true);
+
+	skel->bss->my_pid = getpid();
+	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
+
+	err = percpu_alloc_array__load(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_array__load"))
+		goto out;
+
+	err = percpu_alloc_array__attach(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_array__attach"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.test_array_map_10);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run array_map_10");
+	ASSERT_EQ(topts.retval, 0, "test_run array_map_10");
+	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
+	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
+out:
+	percpu_alloc_array__destroy(skel);
+}
+
+static void test_cgrp_local_storage(void)
+{
+	struct percpu_alloc_cgrp_local_storage *skel;
+	int err, cgroup_fd, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	cgroup_fd = test__join_cgroup("/percpu_alloc");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /percpu_alloc"))
+		return;
+
+	skel = percpu_alloc_cgrp_local_storage__open();
+	if (!ASSERT_OK_PTR(skel, "percpu_alloc_cgrp_local_storage__open"))
+		goto close_fd;
+
+	skel->bss->my_pid = getpid();
+	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
+
+	err = percpu_alloc_cgrp_local_storage__load(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__load"))
+		goto destroy_skel;
+
+	err = percpu_alloc_cgrp_local_storage__attach(skel);
+	if (!ASSERT_OK(err, "percpu_alloc_cgrp_local_storage__attach"))
+		goto destroy_skel;
+
+	prog_fd = bpf_program__fd(skel->progs.test_cgrp_local_storage_1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run cgrp_local_storage 1-3");
+	ASSERT_EQ(topts.retval, 0, "test_run cgrp_local_storage 1-3");
+	ASSERT_EQ(skel->bss->cpu0_field_d, 2, "cpu0_field_d");
+	ASSERT_EQ(skel->bss->sum_field_c, 1, "sum_field_c");
+
+destroy_skel:
+	percpu_alloc_cgrp_local_storage__destroy(skel);
+close_fd:
+	close(cgroup_fd);
+}
+
+static void test_failure(void) {
+	RUN_TESTS(percpu_alloc_fail);
+}
+
+void test_percpu_alloc(void)
+{
+	if (test__start_subtest("array"))
+		test_array();
+	if (test__start_subtest("array_sleepable"))
+		test_array_sleepable();
+	if (test__start_subtest("cgrp_local_storage"))
+		test_cgrp_local_storage();
+	if (test__start_subtest("failure_tests"))
+		test_failure();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_branches.c b/tools/testing/selftests/bpf/prog_tests/perf_branches.c
new file mode 100644
index 000000000000..0a7ef770c487
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/perf_branches.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+#include "bpf/libbpf_internal.h"
+#include "test_perf_branches.skel.h"
+
+static void check_good_sample(struct test_perf_branches *skel)
+{
+	int written_global = skel->bss->written_global_out;
+	int required_size = skel->bss->required_size_out;
+	int written_stack = skel->bss->written_stack_out;
+	int pbe_size = sizeof(struct perf_branch_entry);
+	int duration = 0;
+
+	if (CHECK(!skel->bss->run_cnt, "invalid run_cnt",
+		  "checked sample validity before prog run"))
+		return;
+
+	if (CHECK(!skel->bss->valid, "output not valid",
+		 "no valid sample from prog"))
+		return;
+
+	/*
+	 * It's hard to validate the contents of the branch entries b/c it
+	 * would require some kind of disassembler and also encoding the
+	 * valid jump instructions for supported architectures. So just check
+	 * the easy stuff for now.
+	 */
+	CHECK(required_size <= 0, "read_branches_size", "err %d\n", required_size);
+	CHECK(written_stack < 0, "read_branches_stack", "err %d\n", written_stack);
+	CHECK(written_stack % pbe_size != 0, "read_branches_stack",
+	      "stack bytes written=%d not multiple of struct size=%d\n",
+	      written_stack, pbe_size);
+	CHECK(written_global < 0, "read_branches_global", "err %d\n", written_global);
+	CHECK(written_global % pbe_size != 0, "read_branches_global",
+	      "global bytes written=%d not multiple of struct size=%d\n",
+	      written_global, pbe_size);
+	CHECK(written_global < written_stack, "read_branches_size",
+	      "written_global=%d < written_stack=%d\n", written_global, written_stack);
+}
+
+static void check_bad_sample(struct test_perf_branches *skel)
+{
+	int written_global = skel->bss->written_global_out;
+	int required_size = skel->bss->required_size_out;
+	int written_stack = skel->bss->written_stack_out;
+	int duration = 0;
+
+	if (CHECK(!skel->bss->run_cnt, "invalid run_cnt",
+		  "checked sample validity before prog run"))
+		return;
+
+	if (CHECK(!skel->bss->valid, "output not valid",
+		 "no valid sample from prog"))
+		return;
+
+	CHECK((required_size != -EINVAL && required_size != -ENOENT),
+	      "read_branches_size", "err %d\n", required_size);
+	CHECK((written_stack != -EINVAL && written_stack != -ENOENT),
+	      "read_branches_stack", "written %d\n", written_stack);
+	CHECK((written_global != -EINVAL && written_global != -ENOENT),
+	      "read_branches_global", "written %d\n", written_global);
+}
+
+static void test_perf_branches_common(int perf_fd,
+				      void (*cb)(struct test_perf_branches *))
+{
+	struct test_perf_branches *skel;
+	int err, i, duration = 0;
+	bool detached = false;
+	struct bpf_link *link;
+	volatile int j = 0;
+	cpu_set_t cpu_set;
+
+	skel = test_perf_branches__open_and_load();
+	if (CHECK(!skel, "test_perf_branches_load",
+		  "perf_branches skeleton failed\n"))
+		return;
+
+	/* attach perf_event */
+	link = bpf_program__attach_perf_event(skel->progs.perf_branches, perf_fd);
+	if (!ASSERT_OK_PTR(link, "attach_perf_event"))
+		goto out_destroy_skel;
+
+	/* generate some branches on cpu 0 */
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	if (CHECK(err, "set_affinity", "cpu #0, err %d\n", err))
+		goto out_destroy;
+
+	/* Spin the loop for a while by using a high iteration count, and by
+	 * checking whether the specific run count marker has been explicitly
+	 * incremented at least once by the backing perf_event BPF program.
+	 */
+	for (i = 0; i < 100000000 && !*(volatile int *)&skel->bss->run_cnt; ++i)
+		++j;
+
+	test_perf_branches__detach(skel);
+	detached = true;
+
+	cb(skel);
+out_destroy:
+	bpf_link__destroy(link);
+out_destroy_skel:
+	if (!detached)
+		test_perf_branches__detach(skel);
+	test_perf_branches__destroy(skel);
+}
+
+static void test_perf_branches_hw(void)
+{
+	struct perf_event_attr attr = {0};
+	int duration = 0;
+	int pfd;
+
+	/* create perf event */
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_HARDWARE;
+	attr.config = PERF_COUNT_HW_CPU_CYCLES;
+	attr.freq = 1;
+	attr.sample_freq = 1000;
+	attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
+	attr.branch_sample_type = PERF_SAMPLE_BRANCH_USER | PERF_SAMPLE_BRANCH_ANY;
+	pfd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
+
+	/*
+	 * Some setups don't support LBR (virtual machines, !x86, AMD Milan Zen
+	 * 3 which only supports BRS), so skip test in this case.
+	 */
+	if (pfd < 0) {
+		if (errno == ENOENT || errno == EOPNOTSUPP || errno == EINVAL) {
+			printf("%s:SKIP:no PERF_SAMPLE_BRANCH_STACK\n",
+			       __func__);
+			test__skip();
+			return;
+		}
+		if (CHECK(pfd < 0, "perf_event_open", "err %d errno %d\n",
+			  pfd, errno))
+			return;
+	}
+
+	test_perf_branches_common(pfd, check_good_sample);
+
+	close(pfd);
+}
+
+/*
+ * Tests negative case -- run bpf_read_branch_records() on improperly configured
+ * perf event.
+ */
+static void test_perf_branches_no_hw(void)
+{
+	struct perf_event_attr attr = {0};
+	int duration = 0;
+	int pfd;
+
+	/* create perf event */
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.freq = 1;
+	attr.sample_freq = 1000;
+	pfd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
+	if (CHECK(pfd < 0, "perf_event_open", "err %d\n", pfd))
+		return;
+
+	test_perf_branches_common(pfd, check_bad_sample);
+
+	close(pfd);
+}
+
+void test_perf_branches(void)
+{
+	if (test__start_subtest("perf_branches_hw"))
+		test_perf_branches_hw();
+	if (test__start_subtest("perf_branches_no_hw"))
+		test_perf_branches_no_hw();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_buffer.c b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
new file mode 100644
index 000000000000..5fc2b3a0711e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/perf_buffer.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+#include "test_perf_buffer.skel.h"
+#include "bpf/libbpf_internal.h"
+
+static int duration;
+
+/* AddressSanitizer sometimes crashes due to data dereference below, due to
+ * this being mmap()'ed memory. Disable instrumentation with
+ * no_sanitize_address attribute
+ */
+__attribute__((no_sanitize_address))
+static void on_sample(void *ctx, int cpu, void *data, __u32 size)
+{
+	int cpu_data = *(int *)data, duration = 0;
+	cpu_set_t *cpu_seen = ctx;
+
+	if (cpu_data != cpu)
+		CHECK(cpu_data != cpu, "check_cpu_data",
+		      "cpu_data %d != cpu %d\n", cpu_data, cpu);
+
+	CPU_SET(cpu, cpu_seen);
+}
+
+int trigger_on_cpu(int cpu)
+{
+	cpu_set_t cpu_set;
+	int err;
+
+	CPU_ZERO(&cpu_set);
+	CPU_SET(cpu, &cpu_set);
+
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	if (err && CHECK(err, "set_affinity", "cpu #%d, err %d\n", cpu, err))
+		return err;
+
+	usleep(1);
+
+	return 0;
+}
+
+void serial_test_perf_buffer(void)
+{
+	int err, on_len, nr_on_cpus = 0, nr_cpus, i, j;
+	int zero = 0, my_pid = getpid();
+	struct test_perf_buffer *skel;
+	cpu_set_t cpu_seen;
+	struct perf_buffer *pb;
+	int last_fd = -1, fd;
+	bool *online;
+
+	nr_cpus = libbpf_num_possible_cpus();
+	if (CHECK(nr_cpus < 0, "nr_cpus", "err %d\n", nr_cpus))
+		return;
+
+	err = parse_cpu_mask_file("/sys/devices/system/cpu/online",
+				  &online, &on_len);
+	if (CHECK(err, "nr_on_cpus", "err %d\n", err))
+		return;
+
+	for (i = 0; i < on_len; i++)
+		if (online[i])
+			nr_on_cpus++;
+
+	/* load program */
+	skel = test_perf_buffer__open_and_load();
+	if (CHECK(!skel, "skel_load", "skeleton open/load failed\n"))
+		goto out_close;
+
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.my_pid_map), &zero, &my_pid, 0);
+	if (!ASSERT_OK(err, "my_pid_update"))
+		goto out_close;
+
+	/* attach probe */
+	err = test_perf_buffer__attach(skel);
+	if (CHECK(err, "attach_kprobe", "err %d\n", err))
+		goto out_close;
+
+	/* set up perf buffer */
+	pb = perf_buffer__new(bpf_map__fd(skel->maps.perf_buf_map), 1,
+			      on_sample, NULL, &cpu_seen, NULL);
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
+		goto out_close;
+
+	CHECK(perf_buffer__epoll_fd(pb) < 0, "epoll_fd",
+	      "bad fd: %d\n", perf_buffer__epoll_fd(pb));
+
+	/* trigger kprobe on every CPU */
+	CPU_ZERO(&cpu_seen);
+	for (i = 0; i < nr_cpus; i++) {
+		if (i >= on_len || !online[i]) {
+			printf("skipping offline CPU #%d\n", i);
+			continue;
+		}
+
+		if (trigger_on_cpu(i))
+			goto out_close;
+	}
+
+	/* read perf buffer */
+	err = perf_buffer__poll(pb, 100);
+	if (CHECK(err < 0, "perf_buffer__poll", "err %d\n", err))
+		goto out_free_pb;
+
+	if (CHECK(CPU_COUNT(&cpu_seen) != nr_on_cpus, "seen_cpu_cnt",
+		  "expect %d, seen %d\n", nr_on_cpus, CPU_COUNT(&cpu_seen)))
+		goto out_free_pb;
+
+	if (CHECK(perf_buffer__buffer_cnt(pb) != nr_on_cpus, "buf_cnt",
+		  "got %zu, expected %d\n", perf_buffer__buffer_cnt(pb), nr_on_cpus))
+		goto out_close;
+
+	for (i = 0, j = 0; i < nr_cpus; i++) {
+		if (i >= on_len || !online[i])
+			continue;
+
+		fd = perf_buffer__buffer_fd(pb, j);
+		CHECK(fd < 0 || last_fd == fd, "fd_check", "last fd %d == fd %d\n", last_fd, fd);
+		last_fd = fd;
+
+		err = perf_buffer__consume_buffer(pb, j);
+		if (CHECK(err, "drain_buf", "cpu %d, err %d\n", i, err))
+			goto out_close;
+
+		CPU_CLR(i, &cpu_seen);
+		if (trigger_on_cpu(i))
+			goto out_close;
+
+		err = perf_buffer__consume_buffer(pb, j);
+		if (CHECK(err, "consume_buf", "cpu %d, err %d\n", j, err))
+			goto out_close;
+
+		if (CHECK(!CPU_ISSET(i, &cpu_seen), "cpu_seen", "cpu %d not seen\n", i))
+			goto out_close;
+		j++;
+	}
+
+out_free_pb:
+	perf_buffer__free(pb);
+out_close:
+	test_perf_buffer__destroy(skel);
+	free(online);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c
new file mode 100644
index 000000000000..f4aad35afae1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/perf_event_stackmap.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <test_progs.h>
+#include "perf_event_stackmap.skel.h"
+
+#ifndef noinline
+#define noinline __attribute__((noinline))
+#endif
+
+noinline int func_1(void)
+{
+	static int val = 1;
+
+	val += 1;
+
+	usleep(100);
+	return val;
+}
+
+noinline int func_2(void)
+{
+	return func_1();
+}
+
+noinline int func_3(void)
+{
+	return func_2();
+}
+
+noinline int func_4(void)
+{
+	return func_3();
+}
+
+noinline int func_5(void)
+{
+	return func_4();
+}
+
+noinline int func_6(void)
+{
+	int i, val = 1;
+
+	for (i = 0; i < 100; i++)
+		val += func_5();
+
+	return val;
+}
+
+void test_perf_event_stackmap(void)
+{
+	struct perf_event_attr attr = {
+		/* .type = PERF_TYPE_SOFTWARE, */
+		.type = PERF_TYPE_HARDWARE,
+		.config = PERF_COUNT_HW_CPU_CYCLES,
+		.precise_ip = 2,
+		.sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_BRANCH_STACK |
+			PERF_SAMPLE_CALLCHAIN,
+		.branch_sample_type = PERF_SAMPLE_BRANCH_USER |
+			PERF_SAMPLE_BRANCH_NO_FLAGS |
+			PERF_SAMPLE_BRANCH_NO_CYCLES |
+			PERF_SAMPLE_BRANCH_CALL_STACK,
+		.freq = 1,
+		.sample_freq = read_perf_max_sample_freq(),
+		.size = sizeof(struct perf_event_attr),
+	};
+	struct perf_event_stackmap *skel;
+	__u32 duration = 0;
+	cpu_set_t cpu_set;
+	int pmu_fd, err;
+
+	skel = perf_event_stackmap__open();
+
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	err = perf_event_stackmap__load(skel);
+	if (CHECK(err, "skel_load", "skeleton load failed: %d\n", err))
+		goto cleanup;
+
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	if (CHECK(err, "set_affinity", "err %d, errno %d\n", err, errno))
+		goto cleanup;
+
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+	if (pmu_fd < 0) {
+		printf("%s:SKIP:cpu doesn't support the event\n", __func__);
+		test__skip();
+		goto cleanup;
+	}
+
+	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
+							   pmu_fd);
+	if (!ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event")) {
+		close(pmu_fd);
+		goto cleanup;
+	}
+
+	/* create kernel and user stack traces for testing */
+	func_6();
+
+	CHECK(skel->data->stackid_kernel != 2, "get_stackid_kernel", "failed\n");
+	CHECK(skel->data->stackid_user != 2, "get_stackid_user", "failed\n");
+	CHECK(skel->data->stack_kernel != 2, "get_stack_kernel", "failed\n");
+	CHECK(skel->data->stack_user != 2, "get_stack_user", "failed\n");
+
+cleanup:
+	perf_event_stackmap__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_link.c b/tools/testing/selftests/bpf/prog_tests/perf_link.c
new file mode 100644
index 000000000000..d940ff87fa08
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/perf_link.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sched.h>
+#include <test_progs.h>
+#include "testing_helpers.h"
+#include "test_perf_link.skel.h"
+
+#define BURN_TIMEOUT_MS 100
+#define BURN_TIMEOUT_NS BURN_TIMEOUT_MS * 1000000
+
+static void burn_cpu(void)
+{
+	volatile int j = 0;
+	cpu_set_t cpu_set;
+	int i, err;
+
+	/* generate some branches on cpu 0 */
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+	ASSERT_OK(err, "set_thread_affinity");
+
+	/* spin the loop for a while (random high number) */
+	for (i = 0; i < 1000000; ++i)
+		++j;
+}
+
+/* TODO: often fails in concurrent mode */
+void serial_test_perf_link(void)
+{
+	struct test_perf_link *skel = NULL;
+	struct perf_event_attr attr;
+	int pfd = -1, link_fd = -1, err;
+	int run_cnt_before, run_cnt_after;
+	struct bpf_link_info info;
+	__u32 info_len = sizeof(info);
+	__u64 timeout_time_ns;
+
+	/* create perf event */
+	memset(&attr, 0, sizeof(attr));
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.freq = 1;
+	attr.sample_freq = 1000;
+	pfd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
+	if (!ASSERT_GE(pfd, 0, "perf_fd"))
+		goto cleanup;
+
+	skel = test_perf_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	link_fd = bpf_link_create(bpf_program__fd(skel->progs.handler), pfd,
+				  BPF_PERF_EVENT, NULL);
+	if (!ASSERT_GE(link_fd, 0, "link_fd"))
+		goto cleanup;
+
+	memset(&info, 0, sizeof(info));
+	err = bpf_link_get_info_by_fd(link_fd, &info, &info_len);
+	if (!ASSERT_OK(err, "link_get_info"))
+		goto cleanup;
+
+	ASSERT_EQ(info.type, BPF_LINK_TYPE_PERF_EVENT, "link_type");
+	ASSERT_GT(info.id, 0, "link_id");
+	ASSERT_GT(info.prog_id, 0, "link_prog_id");
+
+	/* ensure we get at least one perf_event prog execution */
+	timeout_time_ns = get_time_ns() + BURN_TIMEOUT_NS;
+	while (true) {
+		burn_cpu();
+		if (skel->bss->run_cnt > 0)
+			break;
+	        if (!ASSERT_LT(get_time_ns(), timeout_time_ns, "run_cnt_timeout"))
+			break;
+	}
+
+	/* perf_event is still active, but we close link and BPF program
+	 * shouldn't be executed anymore
+	 */
+	close(link_fd);
+	link_fd = -1;
+
+	/* make sure there are no stragglers */
+	kern_sync_rcu();
+
+	run_cnt_before = skel->bss->run_cnt;
+	burn_cpu();
+	run_cnt_after = skel->bss->run_cnt;
+
+	ASSERT_EQ(run_cnt_before, run_cnt_after, "run_cnt_before_after");
+
+cleanup:
+	if (link_fd >= 0)
+		close(link_fd);
+	if (pfd >= 0)
+		close(pfd);
+	test_perf_link__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/perf_skip.c b/tools/testing/selftests/bpf/prog_tests/perf_skip.c
new file mode 100644
index 000000000000..37d8618800e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/perf_skip.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <test_progs.h>
+#include "test_perf_skip.skel.h"
+#include <linux/compiler.h>
+#include <linux/hw_breakpoint.h>
+#include <sys/mman.h>
+
+#ifndef TRAP_PERF
+#define TRAP_PERF 6
+#endif
+
+int sigio_count, sigtrap_count;
+
+static void handle_sigio(int sig __always_unused)
+{
+	++sigio_count;
+}
+
+static void handle_sigtrap(int signum __always_unused,
+			   siginfo_t *info,
+			   void *ucontext __always_unused)
+{
+	ASSERT_EQ(info->si_code, TRAP_PERF, "si_code");
+	++sigtrap_count;
+}
+
+static noinline int test_function(void)
+{
+	asm volatile ("");
+	return 0;
+}
+
+void serial_test_perf_skip(void)
+{
+	struct sigaction action = {};
+	struct sigaction previous_sigtrap;
+	sighandler_t previous_sigio = SIG_ERR;
+	struct test_perf_skip *skel = NULL;
+	struct perf_event_attr attr = {};
+	int perf_fd = -1;
+	int err;
+	struct f_owner_ex owner;
+	struct bpf_link *prog_link = NULL;
+
+	action.sa_flags = SA_SIGINFO | SA_NODEFER;
+	action.sa_sigaction = handle_sigtrap;
+	sigemptyset(&action.sa_mask);
+	if (!ASSERT_OK(sigaction(SIGTRAP, &action, &previous_sigtrap), "sigaction"))
+		return;
+
+	previous_sigio = signal(SIGIO, handle_sigio);
+	if (!ASSERT_NEQ(previous_sigio, SIG_ERR, "signal"))
+		goto cleanup;
+
+	skel = test_perf_skip__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	attr.type = PERF_TYPE_BREAKPOINT;
+	attr.size = sizeof(attr);
+	attr.bp_type = HW_BREAKPOINT_X;
+	attr.bp_addr = (uintptr_t)test_function;
+	attr.bp_len = sizeof(long);
+	attr.sample_period = 1;
+	attr.sample_type = PERF_SAMPLE_IP;
+	attr.pinned = 1;
+	attr.exclude_kernel = 1;
+	attr.exclude_hv = 1;
+	attr.precise_ip = 3;
+	attr.sigtrap = 1;
+	attr.remove_on_exec = 1;
+
+	perf_fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0);
+	if (perf_fd < 0 && (errno == ENOENT || errno == EOPNOTSUPP)) {
+		printf("SKIP:no PERF_TYPE_BREAKPOINT/HW_BREAKPOINT_X\n");
+		test__skip();
+		goto cleanup;
+	}
+	if (!ASSERT_OK(perf_fd < 0, "perf_event_open"))
+		goto cleanup;
+
+	/* Configure the perf event to signal on sample. */
+	err = fcntl(perf_fd, F_SETFL, O_ASYNC);
+	if (!ASSERT_OK(err, "fcntl(F_SETFL, O_ASYNC)"))
+		goto cleanup;
+
+	owner.type = F_OWNER_TID;
+	owner.pid = syscall(__NR_gettid);
+	err = fcntl(perf_fd, F_SETOWN_EX, &owner);
+	if (!ASSERT_OK(err, "fcntl(F_SETOWN_EX)"))
+		goto cleanup;
+
+	/* Allow at most one sample. A sample rejected by bpf should
+	 * not count against this.
+	 */
+	err = ioctl(perf_fd, PERF_EVENT_IOC_REFRESH, 1);
+	if (!ASSERT_OK(err, "ioctl(PERF_EVENT_IOC_REFRESH)"))
+		goto cleanup;
+
+	prog_link = bpf_program__attach_perf_event(skel->progs.handler, perf_fd);
+	if (!ASSERT_OK_PTR(prog_link, "bpf_program__attach_perf_event"))
+		goto cleanup;
+
+	/* Configure the bpf program to suppress the sample. */
+	skel->bss->ip = (uintptr_t)test_function;
+	test_function();
+
+	ASSERT_EQ(sigio_count, 0, "sigio_count");
+	ASSERT_EQ(sigtrap_count, 0, "sigtrap_count");
+
+	/* Configure the bpf program to allow the sample. */
+	skel->bss->ip = 0;
+	test_function();
+
+	ASSERT_EQ(sigio_count, 1, "sigio_count");
+	ASSERT_EQ(sigtrap_count, 1, "sigtrap_count");
+
+	/* Test that the sample above is the only one allowed (by perf, not
+	 * by bpf)
+	 */
+	test_function();
+
+	ASSERT_EQ(sigio_count, 1, "sigio_count");
+	ASSERT_EQ(sigtrap_count, 1, "sigtrap_count");
+
+cleanup:
+	bpf_link__destroy(prog_link);
+	if (perf_fd >= 0)
+		close(perf_fd);
+	test_perf_skip__destroy(skel);
+
+	if (previous_sigio != SIG_ERR)
+		signal(SIGIO, previous_sigio);
+	sigaction(SIGTRAP, &previous_sigtrap, NULL);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pinning.c b/tools/testing/selftests/bpf/prog_tests/pinning.c
new file mode 100644
index 000000000000..c799a3c5ad1f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pinning.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <test_progs.h>
+
+__u32 get_map_id(struct bpf_object *obj, const char *name)
+{
+	struct bpf_map_info map_info = {};
+	__u32 map_info_len, duration = 0;
+	struct bpf_map *map;
+	int err;
+
+	map_info_len = sizeof(map_info);
+
+	map = bpf_object__find_map_by_name(obj, name);
+	if (CHECK(!map, "find map", "NULL map"))
+		return 0;
+
+	err = bpf_map_get_info_by_fd(bpf_map__fd(map),
+				     &map_info, &map_info_len);
+	CHECK(err, "get map info", "err %d errno %d", err, errno);
+	return map_info.id;
+}
+
+void test_pinning(void)
+{
+	const char *file_invalid = "./test_pinning_invalid.bpf.o";
+	const char *custpinpath = "/sys/fs/bpf/custom/pinmap";
+	const char *nopinpath = "/sys/fs/bpf/nopinmap";
+	const char *nopinpath2 = "/sys/fs/bpf/nopinmap2";
+	const char *custpath = "/sys/fs/bpf/custom";
+	const char *pinpath = "/sys/fs/bpf/pinmap";
+	const char *file = "./test_pinning.bpf.o";
+	__u32 map_id, map_id2, duration = 0;
+	struct stat statbuf = {};
+	struct bpf_object *obj;
+	struct bpf_map *map;
+	int err, map_fd;
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts,
+		.pin_root_path = custpath,
+	);
+
+	/* check that opening fails with invalid pinning value in map def */
+	obj = bpf_object__open_file(file_invalid, NULL);
+	err = libbpf_get_error(obj);
+	if (CHECK(err != -EINVAL, "invalid open", "err %d errno %d\n", err, errno)) {
+		obj = NULL;
+		goto out;
+	}
+
+	/* open the valid object file  */
+	obj = bpf_object__open_file(file, NULL);
+	err = libbpf_get_error(obj);
+	if (CHECK(err, "default open", "err %d errno %d\n", err, errno)) {
+		obj = NULL;
+		goto out;
+	}
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "default load", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that pinmap was pinned */
+	err = stat(pinpath, &statbuf);
+	if (CHECK(err, "stat pinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that nopinmap was *not* pinned */
+	err = stat(nopinpath, &statbuf);
+	if (CHECK(!err || errno != ENOENT, "stat nopinpath",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that nopinmap2 was *not* pinned */
+	err = stat(nopinpath2, &statbuf);
+	if (CHECK(!err || errno != ENOENT, "stat nopinpath2",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	map_id = get_map_id(obj, "pinmap");
+	if (!map_id)
+		goto out;
+
+	bpf_object__close(obj);
+
+	obj = bpf_object__open_file(file, NULL);
+	if (CHECK_FAIL(libbpf_get_error(obj))) {
+		obj = NULL;
+		goto out;
+	}
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "default load", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that same map ID was reused for second load */
+	map_id2 = get_map_id(obj, "pinmap");
+	if (CHECK(map_id != map_id2, "check reuse",
+		  "err %d errno %d id %d id2 %d\n", err, errno, map_id, map_id2))
+		goto out;
+
+	/* should be no-op to re-pin same map */
+	map = bpf_object__find_map_by_name(obj, "pinmap");
+	if (CHECK(!map, "find map", "NULL map"))
+		goto out;
+
+	err = bpf_map__pin(map, NULL);
+	if (CHECK(err, "re-pin map", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* but error to pin at different location */
+	err = bpf_map__pin(map, "/sys/fs/bpf/other");
+	if (CHECK(!err, "pin map different", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* unpin maps with a pin_path set */
+	err = bpf_object__unpin_maps(obj, NULL);
+	if (CHECK(err, "unpin maps", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* and re-pin them... */
+	err = bpf_object__pin_maps(obj, NULL);
+	if (CHECK(err, "pin maps", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* get pinning path */
+	if (!ASSERT_STREQ(bpf_map__pin_path(map), pinpath, "get pin path"))
+		goto out;
+
+	/* set pinning path of other map and re-pin all */
+	map = bpf_object__find_map_by_name(obj, "nopinmap");
+	if (CHECK(!map, "find map", "NULL map"))
+		goto out;
+
+	err = bpf_map__set_pin_path(map, custpinpath);
+	if (CHECK(err, "set pin path", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* get pinning path after set */
+	if (!ASSERT_STREQ(bpf_map__pin_path(map), custpinpath,
+			  "get pin path after set"))
+		goto out;
+
+	/* should only pin the one unpinned map */
+	err = bpf_object__pin_maps(obj, NULL);
+	if (CHECK(err, "pin maps", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that nopinmap was pinned at the custom path */
+	err = stat(custpinpath, &statbuf);
+	if (CHECK(err, "stat custpinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* remove the custom pin path to re-test it with auto-pinning below */
+	err = unlink(custpinpath);
+	if (CHECK(err, "unlink custpinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	err = rmdir(custpath);
+	if (CHECK(err, "rmdir custpindir", "err %d errno %d\n", err, errno))
+		goto out;
+
+	bpf_object__close(obj);
+
+	/* open the valid object file again */
+	obj = bpf_object__open_file(file, NULL);
+	err = libbpf_get_error(obj);
+	if (CHECK(err, "default open", "err %d errno %d\n", err, errno)) {
+		obj = NULL;
+		goto out;
+	}
+
+	/* set pin paths so that nopinmap2 will attempt to reuse the map at
+	 * pinpath (which will fail), but not before pinmap has already been
+	 * reused
+	 */
+	bpf_object__for_each_map(map, obj) {
+		if (!strcmp(bpf_map__name(map), "nopinmap"))
+			err = bpf_map__set_pin_path(map, nopinpath2);
+		else if (!strcmp(bpf_map__name(map), "nopinmap2"))
+			err = bpf_map__set_pin_path(map, pinpath);
+		else
+			continue;
+
+		if (CHECK(err, "set pin path", "err %d errno %d\n", err, errno))
+			goto out;
+	}
+
+	/* should fail because of map parameter mismatch */
+	err = bpf_object__load(obj);
+	if (CHECK(err != -EINVAL, "param mismatch load", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* nopinmap2 should have been pinned and cleaned up again */
+	err = stat(nopinpath2, &statbuf);
+	if (CHECK(!err || errno != ENOENT, "stat nopinpath2",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* pinmap should still be there */
+	err = stat(pinpath, &statbuf);
+	if (CHECK(err, "stat pinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	bpf_object__close(obj);
+
+	/* test auto-pinning at custom path with open opt */
+	obj = bpf_object__open_file(file, &opts);
+	if (CHECK_FAIL(libbpf_get_error(obj))) {
+		obj = NULL;
+		goto out;
+	}
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "custom load", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* check that pinmap was pinned at the custom path */
+	err = stat(custpinpath, &statbuf);
+	if (CHECK(err, "stat custpinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	/* remove the custom pin path to re-test it with reuse fd below */
+	err = unlink(custpinpath);
+	if (CHECK(err, "unlink custpinpath", "err %d errno %d\n", err, errno))
+		goto out;
+
+	err = rmdir(custpath);
+	if (CHECK(err, "rmdir custpindir", "err %d errno %d\n", err, errno))
+		goto out;
+
+	bpf_object__close(obj);
+
+	/* test pinning at custom path with reuse fd */
+	obj = bpf_object__open_file(file, NULL);
+	err = libbpf_get_error(obj);
+	if (CHECK(err, "default open", "err %d errno %d\n", err, errno)) {
+		obj = NULL;
+		goto out;
+	}
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, sizeof(__u32),
+				sizeof(__u64), 1, NULL);
+	if (CHECK(map_fd < 0, "create pinmap manually", "fd %d\n", map_fd))
+		goto out;
+
+	map = bpf_object__find_map_by_name(obj, "pinmap");
+	if (CHECK(!map, "find map", "NULL map"))
+		goto close_map_fd;
+
+	err = bpf_map__reuse_fd(map, map_fd);
+	if (CHECK(err, "reuse pinmap fd", "err %d errno %d\n", err, errno))
+		goto close_map_fd;
+
+	err = bpf_map__set_pin_path(map, custpinpath);
+	if (CHECK(err, "set pin path", "err %d errno %d\n", err, errno))
+		goto close_map_fd;
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "custom load", "err %d errno %d\n", err, errno))
+		goto close_map_fd;
+
+	/* check that pinmap was pinned at the custom path */
+	err = stat(custpinpath, &statbuf);
+	if (CHECK(err, "stat custpinpath", "err %d errno %d\n", err, errno))
+		goto close_map_fd;
+
+close_map_fd:
+	close(map_fd);
+out:
+	unlink(pinpath);
+	unlink(nopinpath);
+	unlink(nopinpath2);
+	unlink(custpinpath);
+	rmdir(custpath);
+	if (obj)
+		bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pinning_devmap_reuse.c b/tools/testing/selftests/bpf/prog_tests/pinning_devmap_reuse.c
new file mode 100644
index 000000000000..9ae49b587f3e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pinning_devmap_reuse.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <test_progs.h>
+
+
+#include "test_pinning_devmap.skel.h"
+
+void test_pinning_devmap_reuse(void)
+{
+	const char *pinpath1 = "/sys/fs/bpf/pinmap1";
+	const char *pinpath2 = "/sys/fs/bpf/pinmap2";
+	struct test_pinning_devmap *skel1 = NULL, *skel2 = NULL;
+	int err;
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts);
+
+	/* load the object a first time */
+	skel1 = test_pinning_devmap__open_and_load();
+	if (!ASSERT_OK_PTR(skel1, "skel_load1"))
+		goto out;
+
+	/* load the object a second time, re-using the pinned map */
+	skel2 = test_pinning_devmap__open_and_load();
+	if (!ASSERT_OK_PTR(skel2, "skel_load2"))
+		goto out;
+
+	/* we can close the reference safely without
+	 * the map's refcount falling to 0
+	 */
+	test_pinning_devmap__destroy(skel1);
+	skel1 = NULL;
+
+	/* now, swap the pins */
+	err = renameat2(0, pinpath1, 0, pinpath2, RENAME_EXCHANGE);
+	if (!ASSERT_OK(err, "swap pins"))
+		goto out;
+
+	/* load the object again, this time the re-use should fail */
+	skel1 = test_pinning_devmap__open_and_load();
+	if (!ASSERT_ERR_PTR(skel1, "skel_load3"))
+		goto out;
+
+out:
+	unlink(pinpath1);
+	unlink(pinpath2);
+	test_pinning_devmap__destroy(skel1);
+	test_pinning_devmap__destroy(skel2);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pinning_htab.c b/tools/testing/selftests/bpf/prog_tests/pinning_htab.c
new file mode 100644
index 000000000000..16bd74be3dbe
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pinning_htab.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "test_pinning_htab.skel.h"
+
+static void unpin_map(const char *map_name, const char *pin_path)
+{
+	struct test_pinning_htab *skel;
+	struct bpf_map *map;
+	int err;
+
+	skel = test_pinning_htab__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open_and_load"))
+		return;
+
+	map = bpf_object__find_map_by_name(skel->obj, map_name);
+	if (!ASSERT_OK_PTR(map, "bpf_object__find_map_by_name"))
+		goto out;
+
+	err = bpf_map__pin(map, pin_path);
+	if (!ASSERT_OK(err, "bpf_map__pin"))
+		goto out;
+
+	err = bpf_map__unpin(map, pin_path);
+	ASSERT_OK(err, "bpf_map__unpin");
+out:
+	test_pinning_htab__destroy(skel);
+}
+
+void test_pinning_htab(void)
+{
+	if (test__start_subtest("timer_prealloc"))
+		unpin_map("timer_prealloc", "/sys/fs/bpf/timer_prealloc");
+	if (test__start_subtest("timer_no_prealloc"))
+		unpin_map("timer_no_prealloc", "/sys/fs/bpf/timer_no_prealloc");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pkt_access.c b/tools/testing/selftests/bpf/prog_tests/pkt_access.c
new file mode 100644
index 000000000000..682e4ff45b01
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pkt_access.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_pkt_access(void)
+{
+	const char *file = "./test_pkt_access.bpf.o";
+	struct bpf_object *obj;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 100000,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv4 test_run_opts err");
+	ASSERT_OK(topts.retval, "ipv4 test_run_opts retval");
+
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_size_out = 0; /* reset from last call */
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv6 test_run_opts err");
+	ASSERT_OK(topts.retval, "ipv6 test_run_opts retval");
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pkt_md_access.c b/tools/testing/selftests/bpf/prog_tests/pkt_md_access.c
new file mode 100644
index 000000000000..0d85e0642811
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pkt_md_access.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_pkt_md_access(void)
+{
+	const char *file = "./test_pkt_md_access.bpf.o";
+	struct bpf_object *obj;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 10,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run_opts err");
+	ASSERT_OK(topts.retval, "test_run_opts retval");
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/preempt_lock.c b/tools/testing/selftests/bpf/prog_tests/preempt_lock.c
new file mode 100644
index 000000000000..02917c672441
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/preempt_lock.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <preempt_lock.skel.h>
+
+void test_preempt_lock(void)
+{
+	RUN_TESTS(preempt_lock);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c b/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c
new file mode 100644
index 000000000000..3a2ec3923fca
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/preempted_bpf_ma_op.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <test_progs.h>
+
+#include "preempted_bpf_ma_op.skel.h"
+
+#define ALLOC_THREAD_NR 4
+#define ALLOC_LOOP_NR 512
+
+struct alloc_ctx {
+	/* output */
+	int run_err;
+	/* input */
+	int fd;
+	bool *nomem_err;
+};
+
+static void *run_alloc_prog(void *data)
+{
+	struct alloc_ctx *ctx = data;
+	cpu_set_t cpu_set;
+	int i;
+
+	CPU_ZERO(&cpu_set);
+	CPU_SET(0, &cpu_set);
+	pthread_setaffinity_np(pthread_self(), sizeof(cpu_set), &cpu_set);
+
+	for (i = 0; i < ALLOC_LOOP_NR && !*ctx->nomem_err; i++) {
+		LIBBPF_OPTS(bpf_test_run_opts, topts);
+		int err;
+
+		err = bpf_prog_test_run_opts(ctx->fd, &topts);
+		ctx->run_err |= err | topts.retval;
+	}
+
+	return NULL;
+}
+
+void test_preempted_bpf_ma_op(void)
+{
+	struct alloc_ctx ctx[ALLOC_THREAD_NR];
+	struct preempted_bpf_ma_op *skel;
+	pthread_t tid[ALLOC_THREAD_NR];
+	int i, err;
+
+	skel = preempted_bpf_ma_op__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	err = preempted_bpf_ma_op__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto out;
+
+	for (i = 0; i < ARRAY_SIZE(ctx); i++) {
+		struct bpf_program *prog;
+		char name[8];
+
+		snprintf(name, sizeof(name), "test%d", i);
+		prog = bpf_object__find_program_by_name(skel->obj, name);
+		if (!ASSERT_OK_PTR(prog, "no test prog"))
+			goto out;
+
+		ctx[i].run_err = 0;
+		ctx[i].fd = bpf_program__fd(prog);
+		ctx[i].nomem_err = &skel->bss->nomem_err;
+	}
+
+	memset(tid, 0, sizeof(tid));
+	for (i = 0; i < ARRAY_SIZE(tid); i++) {
+		err = pthread_create(&tid[i], NULL, run_alloc_prog, &ctx[i]);
+		if (!ASSERT_OK(err, "pthread_create"))
+			break;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(tid); i++) {
+		if (!tid[i])
+			break;
+		pthread_join(tid[i], NULL);
+		ASSERT_EQ(ctx[i].run_err, 0, "run prog err");
+	}
+
+	ASSERT_FALSE(skel->bss->nomem_err, "ENOMEM");
+out:
+	preempted_bpf_ma_op__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/prepare.c b/tools/testing/selftests/bpf/prog_tests/prepare.c
new file mode 100644
index 000000000000..fb5cdad97116
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/prepare.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "prepare.skel.h"
+
+static bool check_prepared(struct bpf_object *obj)
+{
+	bool is_prepared = true;
+	const struct bpf_map *map;
+
+	bpf_object__for_each_map(map, obj) {
+		if (bpf_map__fd(map) < 0)
+			is_prepared = false;
+	}
+
+	return is_prepared;
+}
+
+static void test_prepare_no_load(void)
+{
+	struct prepare *skel;
+	int err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+	);
+
+	skel = prepare__open();
+	if (!ASSERT_OK_PTR(skel, "prepare__open"))
+		return;
+
+	if (!ASSERT_FALSE(check_prepared(skel->obj), "not check_prepared"))
+		goto cleanup;
+
+	err = bpf_object__prepare(skel->obj);
+
+	if (!ASSERT_TRUE(check_prepared(skel->obj), "check_prepared"))
+		goto cleanup;
+
+	if (!ASSERT_OK(err, "bpf_object__prepare"))
+		goto cleanup;
+
+cleanup:
+	prepare__destroy(skel);
+}
+
+static void test_prepare_load(void)
+{
+	struct prepare *skel;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+	);
+
+	skel = prepare__open();
+	if (!ASSERT_OK_PTR(skel, "prepare__open"))
+		return;
+
+	if (!ASSERT_FALSE(check_prepared(skel->obj), "not check_prepared"))
+		goto cleanup;
+
+	err = bpf_object__prepare(skel->obj);
+	if (!ASSERT_OK(err, "bpf_object__prepare"))
+		goto cleanup;
+
+	err = prepare__load(skel);
+	if (!ASSERT_OK(err, "prepare__load"))
+		goto cleanup;
+
+	if (!ASSERT_TRUE(check_prepared(skel->obj), "check_prepared"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.program);
+	if (!ASSERT_GE(prog_fd, 0, "prog_fd"))
+		goto cleanup;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run_opts err"))
+		goto cleanup;
+
+	if (!ASSERT_OK(topts.retval, "test_run_opts retval"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->err, 0, "err");
+
+cleanup:
+	prepare__destroy(skel);
+}
+
+void test_prepare(void)
+{
+	if (test__start_subtest("prepare_load"))
+		test_prepare_load();
+	if (test__start_subtest("prepare_no_load"))
+		test_prepare_no_load();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/pro_epilogue.c b/tools/testing/selftests/bpf/prog_tests/pro_epilogue.c
new file mode 100644
index 000000000000..5d3c00a08a88
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/pro_epilogue.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "pro_epilogue.skel.h"
+#include "epilogue_tailcall.skel.h"
+#include "pro_epilogue_goto_start.skel.h"
+#include "epilogue_exit.skel.h"
+#include "pro_epilogue_with_kfunc.skel.h"
+
+struct st_ops_args {
+	__u64 a;
+};
+
+static void test_tailcall(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct epilogue_tailcall *skel;
+	struct st_ops_args args;
+	int err, prog_fd;
+
+	skel = epilogue_tailcall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "epilogue_tailcall__open_and_load"))
+		return;
+
+	topts.ctx_in = &args;
+	topts.ctx_size_in = sizeof(args);
+
+	skel->links.epilogue_tailcall =
+		bpf_map__attach_struct_ops(skel->maps.epilogue_tailcall);
+	if (!ASSERT_OK_PTR(skel->links.epilogue_tailcall, "attach_struct_ops"))
+		goto done;
+
+	/* Both test_epilogue_tailcall and test_epilogue_subprog are
+	 * patched with epilogue. When syscall_epilogue_tailcall()
+	 * is run, test_epilogue_tailcall() is triggered.
+	 * It executes a tail call and control is transferred to
+	 * test_epilogue_subprog(). Only test_epilogue_subprog()
+	 * does args->a += 1, thus final args.a value of 10001
+	 * guarantees that only the epilogue of the
+	 * test_epilogue_subprog is executed.
+	 */
+	memset(&args, 0, sizeof(args));
+	prog_fd = bpf_program__fd(skel->progs.syscall_epilogue_tailcall);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_EQ(args.a, 10001, "args.a");
+	ASSERT_EQ(topts.retval, 10001 * 2, "topts.retval");
+
+done:
+	epilogue_tailcall__destroy(skel);
+}
+
+void test_pro_epilogue(void)
+{
+	RUN_TESTS(pro_epilogue);
+	RUN_TESTS(pro_epilogue_goto_start);
+	RUN_TESTS(epilogue_exit);
+	RUN_TESTS(pro_epilogue_with_kfunc);
+	if (test__start_subtest("tailcall"))
+		test_tailcall();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c b/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c
new file mode 100644
index 000000000000..e419298132b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/probe_read_user_str.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_probe_read_user_str.skel.h"
+
+static const char str1[] = "mestring";
+static const char str2[] = "mestringalittlebigger";
+static const char str3[] = "mestringblubblubblubblubblub";
+
+static int test_one_str(struct test_probe_read_user_str *skel, const char *str,
+			size_t len)
+{
+	int err, duration = 0;
+	char buf[256];
+
+	/* Ensure bytes after string are ones */
+	memset(buf, 1, sizeof(buf));
+	memcpy(buf, str, len);
+
+	/* Give prog our userspace pointer */
+	skel->bss->user_ptr = buf;
+
+	/* Trigger tracepoint */
+	usleep(1);
+
+	/* Did helper fail? */
+	if (CHECK(skel->bss->ret < 0, "prog_ret", "prog returned: %ld\n",
+		  skel->bss->ret))
+		return 1;
+
+	/* Check that string was copied correctly */
+	err = memcmp(skel->bss->buf, str, len);
+	if (CHECK(err, "memcmp", "prog copied wrong string"))
+		return 1;
+
+	/* Now check that no extra trailing bytes were copied */
+	memset(buf, 0, sizeof(buf));
+	err = memcmp(skel->bss->buf + len, buf, sizeof(buf) - len);
+	if (CHECK(err, "memcmp", "trailing bytes were not stripped"))
+		return 1;
+
+	return 0;
+}
+
+void test_probe_read_user_str(void)
+{
+	struct test_probe_read_user_str *skel;
+	int err, duration = 0;
+
+	skel = test_probe_read_user_str__open_and_load();
+	if (CHECK(!skel, "test_probe_read_user_str__open_and_load",
+		  "skeleton open and load failed\n"))
+		return;
+
+	/* Give pid to bpf prog so it doesn't read from anyone else */
+	skel->bss->pid = getpid();
+
+	err = test_probe_read_user_str__attach(skel);
+	if (CHECK(err, "test_probe_read_user_str__attach",
+		  "skeleton attach failed: %d\n", err))
+		goto out;
+
+	if (test_one_str(skel, str1, sizeof(str1)))
+		goto out;
+	if (test_one_str(skel, str2, sizeof(str2)))
+		goto out;
+	if (test_one_str(skel, str3, sizeof(str3)))
+		goto out;
+
+out:
+	test_probe_read_user_str__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/probe_user.c b/tools/testing/selftests/bpf/prog_tests/probe_user.c
new file mode 100644
index 000000000000..8721671321de
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/probe_user.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+/* TODO: corrupts other tests uses connect() */
+void serial_test_probe_user(void)
+{
+	static const char *const prog_names[] = {
+		"handle_sys_connect",
+#if defined(__s390x__)
+		"handle_sys_socketcall",
+#endif
+	};
+	enum { prog_count = ARRAY_SIZE(prog_names) };
+	const char *obj_file = "./test_probe_user.bpf.o";
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts, );
+	int err, results_map_fd, sock_fd, duration = 0;
+	struct sockaddr curr, orig, tmp;
+	struct sockaddr_in *in = (struct sockaddr_in *)&curr;
+	struct bpf_link *kprobe_links[prog_count] = {};
+	struct bpf_program *kprobe_progs[prog_count];
+	struct bpf_object *obj;
+	static const int zero = 0;
+	size_t i;
+
+	obj = bpf_object__open_file(obj_file, &opts);
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
+		return;
+
+	for (i = 0; i < prog_count; i++) {
+		kprobe_progs[i] =
+			bpf_object__find_program_by_name(obj, prog_names[i]);
+		if (CHECK(!kprobe_progs[i], "find_probe",
+			  "prog '%s' not found\n", prog_names[i]))
+			goto cleanup;
+	}
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "obj_load", "err %d\n", err))
+		goto cleanup;
+
+	results_map_fd = bpf_find_map(__func__, obj, "test_pro.bss");
+	if (CHECK(results_map_fd < 0, "find_bss_map",
+		  "err %d\n", results_map_fd))
+		goto cleanup;
+
+	for (i = 0; i < prog_count; i++) {
+		kprobe_links[i] = bpf_program__attach(kprobe_progs[i]);
+		if (!ASSERT_OK_PTR(kprobe_links[i], "attach_kprobe"))
+			goto cleanup;
+	}
+
+	memset(&curr, 0, sizeof(curr));
+	in->sin_family = AF_INET;
+	in->sin_port = htons(5555);
+	in->sin_addr.s_addr = inet_addr("255.255.255.255");
+	memcpy(&orig, &curr, sizeof(curr));
+
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (CHECK(sock_fd < 0, "create_sock_fd", "err %d\n", sock_fd))
+		goto cleanup;
+
+	connect(sock_fd, &curr, sizeof(curr));
+	close(sock_fd);
+
+	err = bpf_map_lookup_elem(results_map_fd, &zero, &tmp);
+	if (CHECK(err, "get_kprobe_res",
+		  "failed to get kprobe res: %d\n", err))
+		goto cleanup;
+
+	in = (struct sockaddr_in *)&tmp;
+	if (CHECK(memcmp(&tmp, &orig, sizeof(orig)), "check_kprobe_res",
+		  "wrong kprobe res from probe read: %s:%u\n",
+		  inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
+		goto cleanup;
+
+	memset(&tmp, 0xab, sizeof(tmp));
+
+	in = (struct sockaddr_in *)&curr;
+	if (CHECK(memcmp(&curr, &tmp, sizeof(tmp)), "check_kprobe_res",
+		  "wrong kprobe res from probe write: %s:%u\n",
+		  inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
+		goto cleanup;
+cleanup:
+	for (i = 0; i < prog_count; i++)
+		bpf_link__destroy(kprobe_links[i]);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/prog_array_init.c b/tools/testing/selftests/bpf/prog_tests/prog_array_init.c
new file mode 100644
index 000000000000..fc4657619739
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/prog_array_init.c
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include <test_progs.h>
+#include "test_prog_array_init.skel.h"
+
+void test_prog_array_init(void)
+{
+	struct test_prog_array_init *skel;
+	int err;
+
+	skel = test_prog_array_init__open();
+	if (!ASSERT_OK_PTR(skel, "could not open BPF object"))
+		return;
+
+	skel->rodata->my_pid = getpid();
+
+	err = test_prog_array_init__load(skel);
+	if (!ASSERT_OK(err, "could not load BPF object"))
+		goto cleanup;
+
+	skel->links.entry = bpf_program__attach_raw_tracepoint(skel->progs.entry, "sys_enter");
+	if (!ASSERT_OK_PTR(skel->links.entry, "could not attach BPF program"))
+		goto cleanup;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->value, 42, "unexpected value");
+
+cleanup:
+	test_prog_array_init__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/prog_run_opts.c b/tools/testing/selftests/bpf/prog_tests/prog_run_opts.c
new file mode 100644
index 000000000000..01f1d1b6715a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/prog_run_opts.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "test_pkt_access.skel.h"
+
+static const __u32 duration;
+
+static void check_run_cnt(int prog_fd, __u64 run_cnt)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int err;
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (CHECK(err, "get_prog_info", "failed to get bpf_prog_info for fd %d\n", prog_fd))
+		return;
+
+	CHECK(run_cnt != info.run_cnt, "run_cnt",
+	      "incorrect number of repetitions, want %llu have %llu\n", run_cnt, info.run_cnt);
+}
+
+void test_prog_run_opts(void)
+{
+	struct test_pkt_access *skel;
+	int err, stats_fd = -1, prog_fd;
+	char buf[10] = {};
+	__u64 run_cnt = 0;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.repeat = 1,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = 5,
+	);
+
+	stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
+	if (!ASSERT_GE(stats_fd, 0, "enable_stats good fd"))
+		return;
+
+	skel = test_pkt_access__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.test_pkt_access);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_EQ(errno, ENOSPC, "test_run errno");
+	ASSERT_ERR(err, "test_run");
+	ASSERT_OK(topts.retval, "test_run retval");
+
+	ASSERT_EQ(topts.data_size_out, sizeof(pkt_v4), "test_run data_size_out");
+	ASSERT_EQ(buf[5], 0, "overflow, BPF_PROG_TEST_RUN ignored size hint");
+
+	run_cnt += topts.repeat;
+	check_run_cnt(prog_fd, run_cnt);
+
+	topts.data_out = NULL;
+	topts.data_size_out = 0;
+	topts.repeat = 2;
+	errno = 0;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(errno, "run_no_output errno");
+	ASSERT_OK(err, "run_no_output err");
+	ASSERT_OK(topts.retval, "run_no_output retval");
+
+	run_cnt += topts.repeat;
+	check_run_cnt(prog_fd, run_cnt);
+
+cleanup:
+	if (skel)
+		test_pkt_access__destroy(skel);
+	if (stats_fd >= 0)
+		close(stats_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c b/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c
new file mode 100644
index 000000000000..7607cfc2408c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/prog_tests_framework.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+#include "test_progs.h"
+#include "testing_helpers.h"
+
+static void clear_test_state(struct test_state *state)
+{
+	state->error_cnt = 0;
+	state->sub_succ_cnt = 0;
+	state->skip_cnt = 0;
+}
+
+void test_prog_tests_framework(void)
+{
+	struct test_state *state = env.test_state;
+
+	/* in all the ASSERT calls below we need to return on the first
+	 * error due to the fact that we are cleaning the test state after
+	 * each dummy subtest
+	 */
+
+	/* test we properly count skipped tests with subtests */
+	if (test__start_subtest("test_good_subtest"))
+		test__end_subtest();
+	if (!ASSERT_EQ(state->skip_cnt, 0, "skip_cnt_check"))
+		return;
+	if (!ASSERT_EQ(state->error_cnt, 0, "error_cnt_check"))
+		return;
+	if (!ASSERT_EQ(state->subtest_num, 1, "subtest_num_check"))
+		return;
+	clear_test_state(state);
+
+	if (test__start_subtest("test_skip_subtest")) {
+		test__skip();
+		test__end_subtest();
+	}
+	if (test__start_subtest("test_skip_subtest")) {
+		test__skip();
+		test__end_subtest();
+	}
+	if (!ASSERT_EQ(state->skip_cnt, 2, "skip_cnt_check"))
+		return;
+	if (!ASSERT_EQ(state->subtest_num, 3, "subtest_num_check"))
+		return;
+	clear_test_state(state);
+
+	if (test__start_subtest("test_fail_subtest")) {
+		test__fail();
+		test__end_subtest();
+	}
+	if (!ASSERT_EQ(state->error_cnt, 1, "error_cnt_check"))
+		return;
+	if (!ASSERT_EQ(state->subtest_num, 4, "subtest_num_check"))
+		return;
+	clear_test_state(state);
+}
+
+static void dummy_emit(const char *buf, bool force) {}
+
+void test_prog_tests_framework_expected_msgs(void)
+{
+	struct expected_msgs msgs;
+	int i, j, error_cnt;
+	const struct {
+		const char *name;
+		const char *log;
+		const char *expected;
+		struct expect_msg *pats;
+	} cases[] = {
+		{
+			.name = "simple-ok",
+			.log = "aaabbbccc",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "ccc" },
+				{}
+			}
+		},
+		{
+			.name = "simple-fail",
+			.log = "aaabbbddd",
+			.expected = "MATCHED    SUBSTR: 'aaa'\n"
+				    "EXPECTED   SUBSTR: 'ccc'\n",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "ccc" },
+				{}
+			}
+		},
+		{
+			.name = "negative-ok-mid",
+			.log = "aaabbbccc",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "foo", .negative = true },
+				{ .substr = "bar", .negative = true },
+				{ .substr = "ccc" },
+				{}
+			}
+		},
+		{
+			.name = "negative-ok-tail",
+			.log = "aaabbbccc",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "foo", .negative = true },
+				{}
+			}
+		},
+		{
+			.name = "negative-ok-head",
+			.log = "aaabbbccc",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "foo", .negative = true },
+				{ .substr = "ccc" },
+				{}
+			}
+		},
+		{
+			.name = "negative-fail-head",
+			.log = "aaabbbccc",
+			.expected = "UNEXPECTED SUBSTR: 'aaa'\n",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa", .negative = true },
+				{ .substr = "bbb" },
+				{}
+			}
+		},
+		{
+			.name = "negative-fail-tail",
+			.log = "aaabbbccc",
+			.expected = "UNEXPECTED SUBSTR: 'ccc'\n",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "bbb" },
+				{ .substr = "ccc", .negative = true },
+				{}
+			}
+		},
+		{
+			.name = "negative-fail-mid-1",
+			.log = "aaabbbccc",
+			.expected = "UNEXPECTED SUBSTR: 'bbb'\n",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "bbb", .negative = true },
+				{ .substr = "ccc" },
+				{}
+			}
+		},
+		{
+			.name = "negative-fail-mid-2",
+			.log = "aaabbb222ccc",
+			.expected = "UNEXPECTED SUBSTR: '222'\n",
+			.pats = (struct expect_msg[]) {
+				{ .substr = "aaa" },
+				{ .substr = "222", .negative = true },
+				{ .substr = "bbb", .negative = true },
+				{ .substr = "ccc" },
+				{}
+			}
+		}
+	};
+
+	for (i = 0; i < ARRAY_SIZE(cases); i++) {
+		if (test__start_subtest(cases[i].name)) {
+			error_cnt = env.subtest_state->error_cnt;
+			msgs.patterns = cases[i].pats;
+			msgs.cnt = 0;
+			for (j = 0; cases[i].pats[j].substr; j++)
+				msgs.cnt++;
+			validate_msgs(cases[i].log, &msgs, dummy_emit);
+			fflush(stderr);
+			env.subtest_state->error_cnt = error_cnt;
+			if (cases[i].expected)
+				ASSERT_HAS_SUBSTR(env.subtest_state->log_buf, cases[i].expected, "expected output");
+			else
+				ASSERT_STREQ(env.subtest_state->log_buf, "", "expected no output");
+			test__end_subtest();
+		}
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ptr_untrusted.c b/tools/testing/selftests/bpf/prog_tests/ptr_untrusted.c
new file mode 100644
index 000000000000..8d077d150c56
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ptr_untrusted.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include <string.h>
+#include <linux/bpf.h>
+#include <test_progs.h>
+#include "test_ptr_untrusted.skel.h"
+
+#define TP_NAME "sched_switch"
+
+void serial_test_ptr_untrusted(void)
+{
+	struct test_ptr_untrusted *skel;
+	int err;
+
+	skel = test_ptr_untrusted__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	/* First, attach lsm prog */
+	skel->links.lsm_run = bpf_program__attach_lsm(skel->progs.lsm_run);
+	if (!ASSERT_OK_PTR(skel->links.lsm_run, "lsm_attach"))
+		goto cleanup;
+
+	/* Second, attach raw_tp prog. The lsm prog will be triggered. */
+	skel->links.raw_tp_run = bpf_program__attach_raw_tracepoint(skel->progs.raw_tp_run,
+								    TP_NAME);
+	if (!ASSERT_OK_PTR(skel->links.raw_tp_run, "raw_tp_attach"))
+		goto cleanup;
+
+	err = strncmp(skel->bss->tp_name, TP_NAME, strlen(TP_NAME));
+	ASSERT_EQ(err, 0, "cmp_tp_name");
+
+cleanup:
+	test_ptr_untrusted__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c
new file mode 100644
index 000000000000..a043af9cd6d9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/queue_stack_map.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+enum {
+	QUEUE,
+	STACK,
+};
+
+static void test_queue_stack_map_by_type(int type)
+{
+	const int MAP_SIZE = 32;
+	__u32 vals[MAP_SIZE], val;
+	int i, err, prog_fd, map_in_fd, map_out_fd;
+	char file[32], buf[128];
+	struct bpf_object *obj;
+	struct iphdr iph = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	/* Fill test values to be used */
+	for (i = 0; i < MAP_SIZE; i++)
+		vals[i] = rand();
+
+	if (type == QUEUE)
+		strncpy(file, "./test_queue_map.bpf.o", sizeof(file));
+	else if (type == STACK)
+		strncpy(file, "./test_stack_map.bpf.o", sizeof(file));
+	else
+		return;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	map_in_fd = bpf_find_map(__func__, obj, "map_in");
+	if (map_in_fd < 0)
+		goto out;
+
+	map_out_fd = bpf_find_map(__func__, obj, "map_out");
+	if (map_out_fd < 0)
+		goto out;
+
+	/* Push 32 elements to the input map */
+	for (i = 0; i < MAP_SIZE; i++) {
+		err = bpf_map_update_elem(map_in_fd, NULL, &vals[i], 0);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	/* The eBPF program pushes iph.saddr in the output map,
+	 * pops the input map and saves this value in iph.daddr
+	 */
+	for (i = 0; i < MAP_SIZE; i++) {
+		if (type == QUEUE) {
+			val = vals[i];
+			pkt_v4.iph.saddr = vals[i] * 5;
+		} else if (type == STACK) {
+			val = vals[MAP_SIZE - 1 - i];
+			pkt_v4.iph.saddr = vals[MAP_SIZE - 1 - i] * 5;
+		}
+
+		topts.data_size_out = sizeof(buf);
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		if (err || topts.retval ||
+		    topts.data_size_out != sizeof(pkt_v4))
+			break;
+		memcpy(&iph, buf + sizeof(struct ethhdr), sizeof(iph));
+		if (iph.daddr != val)
+			break;
+	}
+
+	ASSERT_OK(err, "bpf_map_pop_elem");
+	ASSERT_OK(topts.retval, "bpf_map_pop_elem test retval");
+	ASSERT_EQ(topts.data_size_out, sizeof(pkt_v4),
+		  "bpf_map_pop_elem data_size_out");
+	ASSERT_EQ(iph.daddr, val, "bpf_map_pop_elem iph.daddr");
+
+	/* Queue is empty, program should return TC_ACT_SHOT */
+	topts.data_size_out = sizeof(buf);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "check-queue-stack-map-empty");
+	ASSERT_EQ(topts.retval, 2  /* TC_ACT_SHOT */,
+		  "check-queue-stack-map-empty test retval");
+	ASSERT_EQ(topts.data_size_out, sizeof(pkt_v4),
+		  "check-queue-stack-map-empty data_size_out");
+
+	/* Check that the program pushed elements correctly */
+	for (i = 0; i < MAP_SIZE; i++) {
+		err = bpf_map_lookup_and_delete_elem(map_out_fd, NULL, &val);
+		ASSERT_OK(err, "bpf_map_lookup_and_delete_elem");
+		ASSERT_EQ(val, vals[i] * 5, "bpf_map_push_elem val");
+	}
+out:
+	pkt_v4.iph.saddr = 0;
+	bpf_object__close(obj);
+}
+
+void test_queue_stack_map(void)
+{
+	test_queue_stack_map_by_type(QUEUE);
+	test_queue_stack_map_by_type(STACK);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_null.c b/tools/testing/selftests/bpf/prog_tests/raw_tp_null.c
new file mode 100644
index 000000000000..43676a9922dc
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_null.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "raw_tp_null.skel.h"
+#include "raw_tp_null_fail.skel.h"
+
+void test_raw_tp_null(void)
+{
+	struct raw_tp_null *skel;
+
+	RUN_TESTS(raw_tp_null_fail);
+
+	skel = raw_tp_null__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "raw_tp_null__open_and_load"))
+		return;
+
+	skel->bss->tid = sys_gettid();
+
+	if (!ASSERT_OK(raw_tp_null__attach(skel), "raw_tp_null__attach"))
+		goto end;
+
+	ASSERT_OK(trigger_module_test_read(2), "trigger testmod read");
+	ASSERT_EQ(skel->bss->i, 3, "invocations");
+
+end:
+	raw_tp_null__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c b/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c
new file mode 100644
index 000000000000..fe5b8fae2c36
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_test_run.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2019 Facebook */
+#include <test_progs.h>
+#include <linux/bpf.h>
+#include "bpf/libbpf_internal.h"
+#include "test_raw_tp_test_run.skel.h"
+
+void test_raw_tp_test_run(void)
+{
+	int comm_fd = -1, err, nr_online, i, prog_fd;
+	__u64 args[2] = {0x1234ULL, 0x5678ULL};
+	int expected_retval = 0x1234 + 0x5678;
+	struct test_raw_tp_test_run *skel;
+	char buf[] = "new_name";
+	bool *online = NULL;
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+		.flags = BPF_F_TEST_RUN_ON_CPU,
+	);
+
+	err = parse_cpu_mask_file("/sys/devices/system/cpu/online", &online,
+				  &nr_online);
+	if (!ASSERT_OK(err, "parse_cpu_mask_file"))
+		return;
+
+	skel = test_raw_tp_test_run__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	err = test_raw_tp_test_run__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	comm_fd = open("/proc/self/comm", O_WRONLY|O_TRUNC);
+	if (!ASSERT_GE(comm_fd, 0, "open /proc/self/comm"))
+		goto cleanup;
+
+	err = write(comm_fd, buf, sizeof(buf));
+	ASSERT_GE(err, 0, "task rename");
+
+	ASSERT_NEQ(skel->bss->count, 0, "check_count");
+	ASSERT_EQ(skel->data->on_cpu, 0xffffffff, "check_on_cpu");
+
+	prog_fd = bpf_program__fd(skel->progs.rename);
+	opts.ctx_in = args;
+	opts.ctx_size_in = sizeof(__u64);
+
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_NEQ(err, 0, "test_run should fail for too small ctx");
+
+	opts.ctx_size_in = sizeof(args);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(opts.retval, expected_retval, "check_retval");
+
+	for (i = 0; i < nr_online; i++) {
+		if (!online[i])
+			continue;
+
+		opts.cpu = i;
+		opts.retval = 0;
+		err = bpf_prog_test_run_opts(prog_fd, &opts);
+		ASSERT_OK(err, "test_run_opts");
+		ASSERT_EQ(skel->data->on_cpu, i, "check_on_cpu");
+		ASSERT_EQ(opts.retval, expected_retval, "check_retval");
+	}
+
+	/* invalid cpu ID should fail with ENXIO */
+	opts.cpu = 0xffffffff;
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_EQ(errno, ENXIO, "test_run_opts should fail with ENXIO");
+	ASSERT_ERR(err, "test_run_opts_fail");
+
+	/* non-zero cpu w/o BPF_F_TEST_RUN_ON_CPU should fail with EINVAL */
+	opts.cpu = 1;
+	opts.flags = 0;
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_EQ(errno, EINVAL, "test_run_opts should fail with EINVAL");
+	ASSERT_ERR(err, "test_run_opts_fail");
+
+cleanup:
+	close(comm_fd);
+	test_raw_tp_test_run__destroy(skel);
+	free(online);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c
new file mode 100644
index 000000000000..216b0dfac0fe
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_reject_nbd_invalid.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include <linux/nbd.h>
+#include "bpf_util.h"
+
+void test_raw_tp_writable_reject_nbd_invalid(void)
+{
+	__u32 duration = 0;
+	char error[4096];
+	int bpf_fd = -1, tp_fd = -1;
+
+	const struct bpf_insn program[] = {
+		/* r6 is our tp buffer */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
+		/* one byte beyond the end of the nbd_request struct */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6,
+			    sizeof(struct nbd_request)),
+		BPF_EXIT_INSN(),
+	};
+
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.log_level = 2,
+		.log_buf = error,
+		.log_size = sizeof(error),
+	);
+
+	bpf_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, NULL, "GPL v2",
+			       program, ARRAY_SIZE(program),
+			       &opts);
+	if (CHECK(bpf_fd < 0, "bpf_raw_tracepoint_writable load",
+		  "failed: %d errno %d\n", bpf_fd, errno))
+		return;
+
+	tp_fd = bpf_raw_tracepoint_open("nbd_send_request", bpf_fd);
+	if (CHECK(tp_fd >= 0, "bpf_raw_tracepoint_writable open",
+		  "erroneously succeeded\n"))
+		goto out_bpffd;
+
+	close(tp_fd);
+out_bpffd:
+	close(bpf_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c
new file mode 100644
index 000000000000..e3668058b7bb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/raw_tp_writable_test_run.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include <linux/nbd.h>
+#include "bpf_util.h"
+
+/* NOTE: conflict with other tests. */
+void serial_test_raw_tp_writable_test_run(void)
+{
+	__u32 duration = 0;
+	char error[4096];
+
+	const struct bpf_insn trace_program[] = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 42),
+		BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+
+	LIBBPF_OPTS(bpf_prog_load_opts, trace_opts,
+		.log_level = 2,
+		.log_buf = error,
+		.log_size = sizeof(error),
+	);
+
+	int bpf_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT_WRITABLE, NULL, "GPL v2",
+				   trace_program, ARRAY_SIZE(trace_program),
+				   &trace_opts);
+	if (CHECK(bpf_fd < 0, "bpf_raw_tracepoint_writable loaded",
+		  "failed: %d errno %d\n", bpf_fd, errno))
+		return;
+
+	const struct bpf_insn skb_program[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+
+	LIBBPF_OPTS(bpf_prog_load_opts, skb_opts,
+		.log_buf = error,
+		.log_size = sizeof(error),
+	);
+
+	int filter_fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, NULL, "GPL v2",
+				      skb_program, ARRAY_SIZE(skb_program),
+				      &skb_opts);
+	if (CHECK(filter_fd < 0, "test_program_loaded", "failed: %d errno %d\n",
+		  filter_fd, errno))
+		goto out_bpffd;
+
+	int tp_fd = bpf_raw_tracepoint_open("bpf_test_finish", bpf_fd);
+	if (CHECK(tp_fd < 0, "bpf_raw_tracepoint_writable opened",
+		  "failed: %d errno %d\n", tp_fd, errno))
+		goto out_filterfd;
+
+	char test_skb[128] = {
+		0,
+	};
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = test_skb,
+		.data_size_in = sizeof(test_skb),
+		.repeat = 1,
+	);
+	int err = bpf_prog_test_run_opts(filter_fd, &topts);
+	CHECK(err != 42, "test_run",
+	      "tracepoint did not modify return value\n");
+	CHECK(topts.retval != 0, "test_run_ret",
+	      "socket_filter did not return 0\n");
+
+	close(tp_fd);
+
+	err = bpf_prog_test_run_opts(filter_fd, &topts);
+	CHECK(err != 0, "test_run_notrace",
+	      "test_run failed with %d errno %d\n", err, errno);
+	CHECK(topts.retval != 0, "test_run_ret_notrace",
+	      "socket_filter did not return 0\n");
+
+out_filterfd:
+	close(filter_fd);
+out_bpffd:
+	close(bpf_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/rbtree.c b/tools/testing/selftests/bpf/prog_tests/rbtree.c
new file mode 100644
index 000000000000..d8f3d7a45fe9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/rbtree.c
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "rbtree.skel.h"
+#include "rbtree_fail.skel.h"
+#include "rbtree_btf_fail__wrong_node_type.skel.h"
+#include "rbtree_btf_fail__add_wrong_type.skel.h"
+#include "rbtree_search.skel.h"
+
+static void test_rbtree_add_nodes(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_add_nodes), &opts);
+	ASSERT_OK(ret, "rbtree_add_nodes run");
+	ASSERT_OK(opts.retval, "rbtree_add_nodes retval");
+	ASSERT_EQ(skel->data->less_callback_ran, 1, "rbtree_add_nodes less_callback_ran");
+
+	rbtree__destroy(skel);
+}
+
+static void test_rbtree_add_nodes_nested(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_add_nodes_nested), &opts);
+	ASSERT_OK(ret, "rbtree_add_nodes_nested run");
+	ASSERT_OK(opts.retval, "rbtree_add_nodes_nested retval");
+	ASSERT_EQ(skel->data->less_callback_ran, 1, "rbtree_add_nodes_nested less_callback_ran");
+
+	rbtree__destroy(skel);
+}
+
+static void test_rbtree_add_and_remove(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_add_and_remove), &opts);
+	ASSERT_OK(ret, "rbtree_add_and_remove");
+	ASSERT_OK(opts.retval, "rbtree_add_and_remove retval");
+	ASSERT_EQ(skel->data->removed_key, 5, "rbtree_add_and_remove first removed key");
+
+	rbtree__destroy(skel);
+}
+
+static void test_rbtree_add_and_remove_array(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_add_and_remove_array), &opts);
+	ASSERT_OK(ret, "rbtree_add_and_remove_array");
+	ASSERT_OK(opts.retval, "rbtree_add_and_remove_array retval");
+
+	rbtree__destroy(skel);
+}
+
+static void test_rbtree_first_and_remove(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_first_and_remove), &opts);
+	ASSERT_OK(ret, "rbtree_first_and_remove");
+	ASSERT_OK(opts.retval, "rbtree_first_and_remove retval");
+	ASSERT_EQ(skel->data->first_data[0], 2, "rbtree_first_and_remove first rbtree_first()");
+	ASSERT_EQ(skel->data->removed_key, 1, "rbtree_first_and_remove first removed key");
+	ASSERT_EQ(skel->data->first_data[1], 4, "rbtree_first_and_remove second rbtree_first()");
+
+	rbtree__destroy(skel);
+}
+
+static void test_rbtree_api_release_aliasing(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct rbtree *skel;
+	int ret;
+
+	skel = rbtree__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "rbtree__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_api_release_aliasing), &opts);
+	ASSERT_OK(ret, "rbtree_api_release_aliasing");
+	ASSERT_OK(opts.retval, "rbtree_api_release_aliasing retval");
+	ASSERT_EQ(skel->data->first_data[0], 42, "rbtree_api_release_aliasing first rbtree_remove()");
+	ASSERT_EQ(skel->data->first_data[1], -1, "rbtree_api_release_aliasing second rbtree_remove()");
+
+	rbtree__destroy(skel);
+}
+
+void test_rbtree_success(void)
+{
+	if (test__start_subtest("rbtree_add_nodes"))
+		test_rbtree_add_nodes();
+	if (test__start_subtest("rbtree_add_nodes_nested"))
+		test_rbtree_add_nodes_nested();
+	if (test__start_subtest("rbtree_add_and_remove"))
+		test_rbtree_add_and_remove();
+	if (test__start_subtest("rbtree_add_and_remove_array"))
+		test_rbtree_add_and_remove_array();
+	if (test__start_subtest("rbtree_first_and_remove"))
+		test_rbtree_first_and_remove();
+	if (test__start_subtest("rbtree_api_release_aliasing"))
+		test_rbtree_api_release_aliasing();
+}
+
+#define BTF_FAIL_TEST(suffix)									\
+void test_rbtree_btf_fail__##suffix(void)							\
+{												\
+	struct rbtree_btf_fail__##suffix *skel;							\
+												\
+	skel = rbtree_btf_fail__##suffix##__open_and_load();					\
+	if (!ASSERT_ERR_PTR(skel,								\
+			    "rbtree_btf_fail__" #suffix "__open_and_load unexpected success"))	\
+		rbtree_btf_fail__##suffix##__destroy(skel);					\
+}
+
+#define RUN_BTF_FAIL_TEST(suffix)				\
+	if (test__start_subtest("rbtree_btf_fail__" #suffix))	\
+		test_rbtree_btf_fail__##suffix();
+
+BTF_FAIL_TEST(wrong_node_type);
+BTF_FAIL_TEST(add_wrong_type);
+
+void test_rbtree_btf_fail(void)
+{
+	RUN_BTF_FAIL_TEST(wrong_node_type);
+	RUN_BTF_FAIL_TEST(add_wrong_type);
+}
+
+void test_rbtree_fail(void)
+{
+	RUN_TESTS(rbtree_fail);
+}
+
+void test_rbtree_search(void)
+{
+	RUN_TESTS(rbtree_search);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c b/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c
new file mode 100644
index 000000000000..246eb259c08a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/rcu_read_lock.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates.*/
+
+#define _GNU_SOURCE
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "rcu_read_lock.skel.h"
+#include "cgroup_helpers.h"
+
+static unsigned long long cgroup_id;
+
+static void test_success(void)
+{
+	struct rcu_read_lock *skel;
+	int err;
+
+	skel = rcu_read_lock__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->target_pid = sys_gettid();
+
+	bpf_program__set_autoload(skel->progs.get_cgroup_id, true);
+	bpf_program__set_autoload(skel->progs.task_succ, true);
+	bpf_program__set_autoload(skel->progs.two_regions, true);
+	bpf_program__set_autoload(skel->progs.non_sleepable_1, true);
+	bpf_program__set_autoload(skel->progs.non_sleepable_2, true);
+	bpf_program__set_autoload(skel->progs.nested_rcu_region, true);
+	bpf_program__set_autoload(skel->progs.task_trusted_non_rcuptr, true);
+	bpf_program__set_autoload(skel->progs.rcu_read_lock_subprog, true);
+	bpf_program__set_autoload(skel->progs.rcu_read_lock_global_subprog, true);
+	bpf_program__set_autoload(skel->progs.rcu_read_lock_subprog_lock, true);
+	bpf_program__set_autoload(skel->progs.rcu_read_lock_subprog_unlock, true);
+	err = rcu_read_lock__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	err = rcu_read_lock__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	syscall(SYS_getpgid);
+
+	ASSERT_EQ(skel->bss->task_storage_val, 2, "task_storage_val");
+	ASSERT_EQ(skel->bss->cgroup_id, cgroup_id, "cgroup_id");
+out:
+	rcu_read_lock__destroy(skel);
+}
+
+static void test_rcuptr_acquire(void)
+{
+	struct rcu_read_lock *skel;
+	int err;
+
+	skel = rcu_read_lock__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->target_pid = sys_gettid();
+
+	bpf_program__set_autoload(skel->progs.task_acquire, true);
+	err = rcu_read_lock__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	err = rcu_read_lock__attach(skel);
+	ASSERT_OK(err, "skel_attach");
+out:
+	rcu_read_lock__destroy(skel);
+}
+
+static const char * const inproper_region_tests[] = {
+	"miss_lock",
+	"no_lock",
+	"miss_unlock",
+	"non_sleepable_rcu_mismatch",
+	"inproper_sleepable_helper",
+	"inproper_sleepable_kfunc",
+	"nested_rcu_region_unbalanced_1",
+	"nested_rcu_region_unbalanced_2",
+	"rcu_read_lock_global_subprog_lock",
+	"rcu_read_lock_global_subprog_unlock",
+	"rcu_read_lock_sleepable_helper_global_subprog",
+	"rcu_read_lock_sleepable_kfunc_global_subprog",
+	"rcu_read_lock_sleepable_global_subprog_indirect",
+};
+
+static void test_inproper_region(void)
+{
+	struct rcu_read_lock *skel;
+	struct bpf_program *prog;
+	int i, err;
+
+	for (i = 0; i < ARRAY_SIZE(inproper_region_tests); i++) {
+		skel = rcu_read_lock__open();
+		if (!ASSERT_OK_PTR(skel, "skel_open"))
+			return;
+
+		prog = bpf_object__find_program_by_name(skel->obj, inproper_region_tests[i]);
+		if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+			goto out;
+		bpf_program__set_autoload(prog, true);
+		err = rcu_read_lock__load(skel);
+		ASSERT_ERR(err, "skel_load");
+out:
+		rcu_read_lock__destroy(skel);
+	}
+}
+
+static const char * const rcuptr_misuse_tests[] = {
+	"task_untrusted_rcuptr",
+	"cross_rcu_region",
+};
+
+static void test_rcuptr_misuse(void)
+{
+	struct rcu_read_lock *skel;
+	struct bpf_program *prog;
+	int i, err;
+
+	for (i = 0; i < ARRAY_SIZE(rcuptr_misuse_tests); i++) {
+		skel = rcu_read_lock__open();
+		if (!ASSERT_OK_PTR(skel, "skel_open"))
+			return;
+
+		prog = bpf_object__find_program_by_name(skel->obj, rcuptr_misuse_tests[i]);
+		if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+			goto out;
+		bpf_program__set_autoload(prog, true);
+		err = rcu_read_lock__load(skel);
+		ASSERT_ERR(err, "skel_load");
+out:
+		rcu_read_lock__destroy(skel);
+	}
+}
+
+void test_rcu_read_lock(void)
+{
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/rcu_read_lock");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /rcu_read_lock"))
+		goto out;
+
+	cgroup_id = get_cgroup_id("/rcu_read_lock");
+	if (test__start_subtest("success"))
+		test_success();
+	if (test__start_subtest("rcuptr_acquire"))
+		test_rcuptr_acquire();
+	if (test__start_subtest("negative_tests_inproper_region"))
+		test_inproper_region();
+	if (test__start_subtest("negative_tests_rcuptr_misuse"))
+		test_rcuptr_misuse();
+	close(cgroup_fd);
+out:;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c b/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c
new file mode 100644
index 000000000000..19e2f2526dbd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/rdonly_maps.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+struct bss {
+	unsigned did_run;
+	unsigned iters;
+	unsigned sum;
+};
+
+struct rdonly_map_subtest {
+	const char *subtest_name;
+	const char *prog_name;
+	unsigned exp_iters;
+	unsigned exp_sum;
+};
+
+void test_rdonly_maps(void)
+{
+	const char *file = "test_rdonly_maps.bpf.o";
+	struct rdonly_map_subtest subtests[] = {
+		{ "skip loop", "skip_loop", 0, 0 },
+		{ "part loop", "part_loop", 3, 2 + 3 + 4 },
+		{ "full loop", "full_loop", 4, 2 + 3 + 4 + 5 },
+	};
+	int i, err, zero = 0, duration = 0;
+	struct bpf_link *link = NULL;
+	struct bpf_program *prog;
+	struct bpf_map *bss_map;
+	struct bpf_object *obj;
+	struct bss bss;
+
+	obj = bpf_object__open_file(file, NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open"))
+		return;
+
+	err = bpf_object__load(obj);
+	if (CHECK(err, "obj_load", "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	bss_map = bpf_object__find_map_by_name(obj, ".bss");
+	if (CHECK(!bss_map, "find_bss_map", "failed\n"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(subtests); i++) {
+		const struct rdonly_map_subtest *t = &subtests[i];
+
+		if (!test__start_subtest(t->subtest_name))
+			continue;
+
+		prog = bpf_object__find_program_by_name(obj, t->prog_name);
+		if (CHECK(!prog, "find_prog", "prog '%s' not found\n",
+			  t->prog_name))
+			goto cleanup;
+
+		memset(&bss, 0, sizeof(bss));
+		err = bpf_map_update_elem(bpf_map__fd(bss_map), &zero, &bss, 0);
+		if (CHECK(err, "set_bss", "failed to set bss data: %d\n", err))
+			goto cleanup;
+
+		link = bpf_program__attach_raw_tracepoint(prog, "sys_enter");
+		if (!ASSERT_OK_PTR(link, "attach_prog"))
+			goto cleanup;
+
+		/* trigger probe */
+		usleep(1);
+
+		bpf_link__destroy(link);
+		link = NULL;
+
+		err = bpf_map_lookup_elem(bpf_map__fd(bss_map), &zero, &bss);
+		if (CHECK(err, "get_bss", "failed to get bss data: %d\n", err))
+			goto cleanup;
+		if (CHECK(bss.did_run == 0, "check_run",
+			  "prog '%s' didn't run?\n", t->prog_name))
+			goto cleanup;
+		if (CHECK(bss.iters != t->exp_iters, "check_iters",
+			  "prog '%s' iters: %d, expected: %d\n",
+			  t->prog_name, bss.iters, t->exp_iters))
+			goto cleanup;
+		if (CHECK(bss.sum != t->exp_sum, "check_sum",
+			  "prog '%s' sum: %d, expected: %d\n",
+			  t->prog_name, bss.sum, t->exp_sum))
+			goto cleanup;
+	}
+
+cleanup:
+	bpf_link__destroy(link);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/read_vsyscall.c b/tools/testing/selftests/bpf/prog_tests/read_vsyscall.c
new file mode 100644
index 000000000000..a8d1eaa67020
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/read_vsyscall.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2024. Huawei Technologies Co., Ltd */
+#include "test_progs.h"
+#include "read_vsyscall.skel.h"
+
+#if defined(__x86_64__)
+/* For VSYSCALL_ADDR */
+#include <asm/vsyscall.h>
+#else
+/* To prevent build failure on non-x86 arch */
+#define VSYSCALL_ADDR 0UL
+#endif
+
+struct read_ret_desc {
+	const char *name;
+	int ret;
+} all_read[] = {
+	{ .name = "probe_read_kernel", .ret = -ERANGE },
+	{ .name = "probe_read_kernel_str", .ret = -ERANGE },
+	{ .name = "probe_read", .ret = -ERANGE },
+	{ .name = "probe_read_str", .ret = -ERANGE },
+	{ .name = "probe_read_user", .ret = -EFAULT },
+	{ .name = "probe_read_user_str", .ret = -EFAULT },
+	{ .name = "copy_from_user", .ret = -EFAULT },
+	{ .name = "copy_from_user_task", .ret = -EFAULT },
+	{ .name = "copy_from_user_str", .ret = -EFAULT },
+	{ .name = "copy_from_user_task_str", .ret = -EFAULT },
+};
+
+void test_read_vsyscall(void)
+{
+	struct read_vsyscall *skel;
+	unsigned int i;
+	int err;
+
+#if !defined(__x86_64__)
+	test__skip();
+	return;
+#endif
+	skel = read_vsyscall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "read_vsyscall open_load"))
+		return;
+
+	skel->bss->target_pid = getpid();
+	err = read_vsyscall__attach(skel);
+	if (!ASSERT_EQ(err, 0, "read_vsyscall attach"))
+		goto out;
+
+	/* userspace may don't have vsyscall page due to LEGACY_VSYSCALL_NONE,
+	 * but it doesn't affect the returned error codes.
+	 */
+	skel->bss->user_ptr = (void *)VSYSCALL_ADDR;
+	usleep(1);
+
+	for (i = 0; i < ARRAY_SIZE(all_read); i++)
+		ASSERT_EQ(skel->bss->read_ret[i], all_read[i].ret, all_read[i].name);
+out:
+	read_vsyscall__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/recursion.c b/tools/testing/selftests/bpf/prog_tests/recursion.c
new file mode 100644
index 000000000000..23552d3e3365
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/recursion.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "recursion.skel.h"
+
+void test_recursion(void)
+{
+	struct bpf_prog_info prog_info = {};
+	__u32 prog_info_len = sizeof(prog_info);
+	struct recursion *skel;
+	int key = 0;
+	int err;
+
+	skel = recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = recursion__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	ASSERT_EQ(skel->bss->pass1, 0, "pass1 == 0");
+	bpf_map_delete_elem(bpf_map__fd(skel->maps.hash1), &key);
+	ASSERT_EQ(skel->bss->pass1, 1, "pass1 == 1");
+	bpf_map_delete_elem(bpf_map__fd(skel->maps.hash1), &key);
+	ASSERT_EQ(skel->bss->pass1, 2, "pass1 == 2");
+
+	ASSERT_EQ(skel->bss->pass2, 0, "pass2 == 0");
+	bpf_map_delete_elem(bpf_map__fd(skel->maps.hash2), &key);
+	ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1");
+	bpf_map_delete_elem(bpf_map__fd(skel->maps.hash2), &key);
+	ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2");
+
+	err = bpf_prog_get_info_by_fd(bpf_program__fd(skel->progs.on_delete),
+				      &prog_info, &prog_info_len);
+	if (!ASSERT_OK(err, "get_prog_info"))
+		goto out;
+	ASSERT_EQ(prog_info.recursion_misses, 2, "recursion_misses");
+out:
+	recursion__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/recursive_attach.c b/tools/testing/selftests/bpf/prog_tests/recursive_attach.c
new file mode 100644
index 000000000000..0ffa01d54ce2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/recursive_attach.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Red Hat, Inc. */
+#include <test_progs.h>
+#include "fentry_recursive.skel.h"
+#include "fentry_recursive_target.skel.h"
+#include <bpf/btf.h>
+#include "bpf/libbpf_internal.h"
+
+/* Test recursive attachment of tracing progs with more than one nesting level
+ * is not possible. Create a chain of attachment, verify that the last prog
+ * will fail. Depending on the arguments, following cases are tested:
+ *
+ * - Recursive loading of tracing progs, without attaching (attach = false,
+ *   detach = false). The chain looks like this:
+ *       load target
+ *       load fentry1 -> target
+ *       load fentry2 -> fentry1 (fail)
+ *
+ * - Recursive attach of tracing progs (attach = true, detach = false). The
+ *   chain looks like this:
+ *       load target
+ *       load fentry1 -> target
+ *       attach fentry1 -> target
+ *       load fentry2 -> fentry1 (fail)
+ *
+ * - Recursive attach and detach of tracing progs (attach = true, detach =
+ *   true). This validates that attach_tracing_prog flag will be set throughout
+ *   the whole lifecycle of an fentry prog, independently from whether it's
+ *   detached. The chain looks like this:
+ *       load target
+ *       load fentry1 -> target
+ *       attach fentry1 -> target
+ *       detach fentry1
+ *       load fentry2 -> fentry1 (fail)
+ */
+static void test_recursive_fentry_chain(bool attach, bool detach)
+{
+	struct fentry_recursive_target *target_skel = NULL;
+	struct fentry_recursive *tracing_chain[2] = {};
+	struct bpf_program *prog;
+	int prev_fd, err;
+
+	target_skel = fentry_recursive_target__open_and_load();
+	if (!ASSERT_OK_PTR(target_skel, "fentry_recursive_target__open_and_load"))
+		return;
+
+	/* Create an attachment chain with two fentry progs */
+	for (int i = 0; i < 2; i++) {
+		tracing_chain[i] = fentry_recursive__open();
+		if (!ASSERT_OK_PTR(tracing_chain[i], "fentry_recursive__open"))
+			goto close_prog;
+
+		/* The first prog in the chain is going to be attached to the target
+		 * fentry program, the second one to the previous in the chain.
+		 */
+		prog = tracing_chain[i]->progs.recursive_attach;
+		if (i == 0) {
+			prev_fd = bpf_program__fd(target_skel->progs.test1);
+			err = bpf_program__set_attach_target(prog, prev_fd, "test1");
+		} else {
+			prev_fd = bpf_program__fd(tracing_chain[i-1]->progs.recursive_attach);
+			err = bpf_program__set_attach_target(prog, prev_fd, "recursive_attach");
+		}
+
+		if (!ASSERT_OK(err, "bpf_program__set_attach_target"))
+			goto close_prog;
+
+		err = fentry_recursive__load(tracing_chain[i]);
+		/* The first attach should succeed, the second fail */
+		if (i == 0) {
+			if (!ASSERT_OK(err, "fentry_recursive__load"))
+				goto close_prog;
+
+			if (attach) {
+				err = fentry_recursive__attach(tracing_chain[i]);
+				if (!ASSERT_OK(err, "fentry_recursive__attach"))
+					goto close_prog;
+			}
+
+			if (detach) {
+				/* Flag attach_tracing_prog should still be set, preventing
+				 * attachment of the following prog.
+				 */
+				fentry_recursive__detach(tracing_chain[i]);
+			}
+		} else {
+			if (!ASSERT_ERR(err, "fentry_recursive__load"))
+				goto close_prog;
+		}
+	}
+
+close_prog:
+	fentry_recursive_target__destroy(target_skel);
+	for (int i = 0; i < 2; i++) {
+		fentry_recursive__destroy(tracing_chain[i]);
+	}
+}
+
+void test_recursive_fentry(void)
+{
+	if (test__start_subtest("attach"))
+		test_recursive_fentry_chain(true, false);
+	if (test__start_subtest("load"))
+		test_recursive_fentry_chain(false, false);
+	if (test__start_subtest("detach"))
+		test_recursive_fentry_chain(true, true);
+}
+
+/* Test that a tracing prog reattachment (when we land in
+ * "prog->aux->dst_trampoline and tgt_prog is NULL" branch in
+ * bpf_tracing_prog_attach) does not lead to a crash due to missing attach_btf
+ */
+void test_fentry_attach_btf_presence(void)
+{
+	struct fentry_recursive_target *target_skel = NULL;
+	struct fentry_recursive *tracing_skel = NULL;
+	struct bpf_program *prog;
+	int err, link_fd, tgt_prog_fd;
+
+	target_skel = fentry_recursive_target__open_and_load();
+	if (!ASSERT_OK_PTR(target_skel, "fentry_recursive_target__open_and_load"))
+		goto close_prog;
+
+	tracing_skel = fentry_recursive__open();
+	if (!ASSERT_OK_PTR(tracing_skel, "fentry_recursive__open"))
+		goto close_prog;
+
+	prog = tracing_skel->progs.recursive_attach;
+	tgt_prog_fd = bpf_program__fd(target_skel->progs.fentry_target);
+	err = bpf_program__set_attach_target(prog, tgt_prog_fd, "fentry_target");
+	if (!ASSERT_OK(err, "bpf_program__set_attach_target"))
+		goto close_prog;
+
+	err = fentry_recursive__load(tracing_skel);
+	if (!ASSERT_OK(err, "fentry_recursive__load"))
+		goto close_prog;
+
+	tgt_prog_fd = bpf_program__fd(tracing_skel->progs.recursive_attach);
+	link_fd = bpf_link_create(tgt_prog_fd, 0, BPF_TRACE_FENTRY, NULL);
+	if (!ASSERT_GE(link_fd, 0, "link_fd"))
+		goto close_prog;
+
+	fentry_recursive__detach(tracing_skel);
+
+	err = fentry_recursive__attach(tracing_skel);
+	ASSERT_ERR(err, "fentry_recursive__attach");
+
+close_prog:
+	fentry_recursive_target__destroy(target_skel);
+	fentry_recursive__destroy(tracing_skel);
+}
+
+static void *fentry_target_test_run(void *arg)
+{
+	for (;;) {
+		int prog_fd = __atomic_load_n((int *)arg, __ATOMIC_SEQ_CST);
+		LIBBPF_OPTS(bpf_test_run_opts, topts);
+		int err;
+
+		if (prog_fd == -1)
+			break;
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		if (!ASSERT_OK(err, "fentry_target test_run"))
+			break;
+	}
+
+	return NULL;
+}
+
+void test_fentry_attach_stress(void)
+{
+	struct fentry_recursive_target *target_skel = NULL;
+	struct fentry_recursive *tracing_skel = NULL;
+	struct bpf_program *prog;
+	int err, i, tgt_prog_fd;
+	pthread_t thread;
+
+	target_skel = fentry_recursive_target__open_and_load();
+	if (!ASSERT_OK_PTR(target_skel,
+			   "fentry_recursive_target__open_and_load"))
+		goto close_prog;
+	tgt_prog_fd = bpf_program__fd(target_skel->progs.fentry_target);
+	err = pthread_create(&thread, NULL,
+			     fentry_target_test_run, &tgt_prog_fd);
+	if (!ASSERT_OK(err, "bpf_program__set_attach_target"))
+		goto close_prog;
+
+	for (i = 0; i < 1000; i++) {
+		tracing_skel = fentry_recursive__open();
+		if (!ASSERT_OK_PTR(tracing_skel, "fentry_recursive__open"))
+			goto stop_thread;
+
+		prog = tracing_skel->progs.recursive_attach;
+		err = bpf_program__set_attach_target(prog, tgt_prog_fd,
+						     "fentry_target");
+		if (!ASSERT_OK(err, "bpf_program__set_attach_target"))
+			goto stop_thread;
+
+		err = fentry_recursive__load(tracing_skel);
+		if (!ASSERT_OK(err, "fentry_recursive__load"))
+			goto stop_thread;
+
+		err = fentry_recursive__attach(tracing_skel);
+		if (!ASSERT_OK(err, "fentry_recursive__attach"))
+			goto stop_thread;
+
+		fentry_recursive__destroy(tracing_skel);
+		tracing_skel = NULL;
+	}
+
+stop_thread:
+	__atomic_store_n(&tgt_prog_fd, -1, __ATOMIC_SEQ_CST);
+	err = pthread_join(thread, NULL);
+	ASSERT_OK(err, "pthread_join");
+close_prog:
+	fentry_recursive__destroy(tracing_skel);
+	fentry_recursive_target__destroy(target_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/refcounted_kptr.c b/tools/testing/selftests/bpf/prog_tests/refcounted_kptr.c
new file mode 100644
index 000000000000..d2c0542716a8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/refcounted_kptr.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "refcounted_kptr.skel.h"
+#include "refcounted_kptr_fail.skel.h"
+
+void test_refcounted_kptr(void)
+{
+	RUN_TESTS(refcounted_kptr);
+}
+
+void test_refcounted_kptr_fail(void)
+{
+	RUN_TESTS(refcounted_kptr_fail);
+}
+
+void test_refcounted_kptr_wrong_owner(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+	struct refcounted_kptr *skel;
+	int ret;
+
+	skel = refcounted_kptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "refcounted_kptr__open_and_load"))
+		return;
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_a1), &opts);
+	ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_a1");
+	ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_a1 retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_b), &opts);
+	ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_b");
+	ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_b retval");
+
+	ret = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.rbtree_wrong_owner_remove_fail_a2), &opts);
+	ASSERT_OK(ret, "rbtree_wrong_owner_remove_fail_a2");
+	ASSERT_OK(opts.retval, "rbtree_wrong_owner_remove_fail_a2 retval");
+	refcounted_kptr__destroy(skel);
+}
+
+void test_percpu_hash_refcounted_kptr_refcount_leak(void)
+{
+	struct refcounted_kptr *skel;
+	int cpu_nr, fd, err, key = 0;
+	struct bpf_map *map;
+	size_t values_sz;
+	u64 *values;
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .repeat = 1,
+	);
+
+	cpu_nr = libbpf_num_possible_cpus();
+	if (!ASSERT_GT(cpu_nr, 0, "libbpf_num_possible_cpus"))
+		return;
+
+	values = calloc(cpu_nr, sizeof(u64));
+	if (!ASSERT_OK_PTR(values, "calloc values"))
+		return;
+
+	skel = refcounted_kptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "refcounted_kptr__open_and_load")) {
+		free(values);
+		return;
+	}
+
+	values_sz = cpu_nr * sizeof(u64);
+	memset(values, 0, values_sz);
+
+	map = skel->maps.percpu_hash;
+	err = bpf_map__update_elem(map, &key, sizeof(key), values, values_sz, 0);
+	if (!ASSERT_OK(err, "bpf_map__update_elem"))
+		goto out;
+
+	fd = bpf_program__fd(skel->progs.percpu_hash_refcount_leak);
+	err = bpf_prog_test_run_opts(fd, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		goto out;
+	if (!ASSERT_EQ(opts.retval, 2, "opts.retval"))
+		goto out;
+
+	err = bpf_map__update_elem(map, &key, sizeof(key), values, values_sz, 0);
+	if (!ASSERT_OK(err, "bpf_map__update_elem"))
+		goto out;
+
+	fd = bpf_program__fd(skel->progs.check_percpu_hash_refcount);
+	err = bpf_prog_test_run_opts(fd, &opts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_EQ(opts.retval, 1, "opts.retval");
+
+out:
+	refcounted_kptr__destroy(skel);
+	free(values);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/reference_tracking.c b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
new file mode 100644
index 000000000000..d863205bbe95
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/reference_tracking.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_reference_tracking(void)
+{
+	const char *file = "test_sk_lookup_kern.bpf.o";
+	const char *obj_name = "ref_track";
+	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, open_opts,
+		.object_name = obj_name,
+		.relaxed_maps = true,
+	);
+	struct bpf_object *obj_iter, *obj = NULL;
+	struct bpf_program *prog;
+	__u32 duration = 0;
+	int err = 0;
+
+	obj_iter = bpf_object__open_file(file, &open_opts);
+	if (!ASSERT_OK_PTR(obj_iter, "obj_iter_open_file"))
+		return;
+
+	if (CHECK(strcmp(bpf_object__name(obj_iter), obj_name), "obj_name",
+		  "wrong obj name '%s', expected '%s'\n",
+		  bpf_object__name(obj_iter), obj_name))
+		goto cleanup;
+
+	bpf_object__for_each_program(prog, obj_iter) {
+		struct bpf_program *p;
+		const char *name;
+
+		name = bpf_program__name(prog);
+		if (!test__start_subtest(name))
+			continue;
+
+		obj = bpf_object__open_file(file, &open_opts);
+		if (!ASSERT_OK_PTR(obj, "obj_open_file"))
+			goto cleanup;
+
+		/* all programs are not loaded by default, so just set
+		 * autoload to true for the single prog under test
+		 */
+		p = bpf_object__find_program_by_name(obj, name);
+		bpf_program__set_autoload(p, true);
+
+		/* Expect verifier failure if test name has 'err' */
+		if (strncmp(name, "err_", sizeof("err_") - 1) == 0) {
+			libbpf_print_fn_t old_print_fn;
+
+			old_print_fn = libbpf_set_print(NULL);
+			err = !bpf_object__load(obj);
+			libbpf_set_print(old_print_fn);
+		} else {
+			err = bpf_object__load(obj);
+		}
+		ASSERT_OK(err, name);
+
+		bpf_object__close(obj);
+		obj = NULL;
+	}
+
+cleanup:
+	bpf_object__close(obj);
+	bpf_object__close(obj_iter);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/reg_bounds.c b/tools/testing/selftests/bpf/prog_tests/reg_bounds.c
new file mode 100644
index 000000000000..d93a0c7b1786
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/reg_bounds.c
@@ -0,0 +1,2161 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#define _GNU_SOURCE
+#include <limits.h>
+#include <test_progs.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+
+/* =================================
+ * SHORT AND CONSISTENT NUMBER TYPES
+ * =================================
+ */
+#define U64_MAX ((u64)UINT64_MAX)
+#define U32_MAX ((u32)UINT_MAX)
+#define U16_MAX ((u32)UINT_MAX)
+#define S64_MIN ((s64)INT64_MIN)
+#define S64_MAX ((s64)INT64_MAX)
+#define S32_MIN ((s32)INT_MIN)
+#define S32_MAX ((s32)INT_MAX)
+#define S16_MIN ((s16)0x80000000)
+#define S16_MAX ((s16)0x7fffffff)
+
+typedef unsigned long long ___u64;
+typedef unsigned int ___u32;
+typedef long long ___s64;
+typedef int ___s32;
+
+/* avoid conflicts with already defined types in kernel headers */
+#define u64 ___u64
+#define u32 ___u32
+#define s64 ___s64
+#define s32 ___s32
+
+/* ==================================
+ * STRING BUF ABSTRACTION AND HELPERS
+ * ==================================
+ */
+struct strbuf {
+	size_t buf_sz;
+	int pos;
+	char buf[0];
+};
+
+#define DEFINE_STRBUF(name, N)						\
+	struct { struct strbuf buf; char data[(N)]; } ___##name;	\
+	struct strbuf *name = (___##name.buf.buf_sz = (N), ___##name.buf.pos = 0, &___##name.buf)
+
+__printf(2, 3)
+static inline void snappendf(struct strbuf *s, const char *fmt, ...)
+{
+	va_list args;
+
+	va_start(args, fmt);
+	s->pos += vsnprintf(s->buf + s->pos,
+			    s->pos < s->buf_sz ? s->buf_sz - s->pos : 0,
+			    fmt, args);
+	va_end(args);
+}
+
+/* ==================================
+ * GENERIC NUMBER TYPE AND OPERATIONS
+ * ==================================
+ */
+enum num_t { U64, first_t = U64, U32, S64, S32, last_t = S32 };
+
+static __always_inline u64 min_t(enum num_t t, u64 x, u64 y)
+{
+	switch (t) {
+	case U64: return (u64)x < (u64)y ? (u64)x : (u64)y;
+	case U32: return (u32)x < (u32)y ? (u32)x : (u32)y;
+	case S64: return (s64)x < (s64)y ? (s64)x : (s64)y;
+	case S32: return (s32)x < (s32)y ? (s32)x : (s32)y;
+	default: printf("min_t!\n"); exit(1);
+	}
+}
+
+static __always_inline u64 max_t(enum num_t t, u64 x, u64 y)
+{
+	switch (t) {
+	case U64: return (u64)x > (u64)y ? (u64)x : (u64)y;
+	case U32: return (u32)x > (u32)y ? (u32)x : (u32)y;
+	case S64: return (s64)x > (s64)y ? (s64)x : (s64)y;
+	case S32: return (s32)x > (s32)y ? (u32)(s32)x : (u32)(s32)y;
+	default: printf("max_t!\n"); exit(1);
+	}
+}
+
+static __always_inline u64 cast_t(enum num_t t, u64 x)
+{
+	switch (t) {
+	case U64: return (u64)x;
+	case U32: return (u32)x;
+	case S64: return (s64)x;
+	case S32: return (u32)(s32)x;
+	default: printf("cast_t!\n"); exit(1);
+	}
+}
+
+static const char *t_str(enum num_t t)
+{
+	switch (t) {
+	case U64: return "u64";
+	case U32: return "u32";
+	case S64: return "s64";
+	case S32: return "s32";
+	default: printf("t_str!\n"); exit(1);
+	}
+}
+
+static enum num_t t_is_32(enum num_t t)
+{
+	switch (t) {
+	case U64: return false;
+	case U32: return true;
+	case S64: return false;
+	case S32: return true;
+	default: printf("t_is_32!\n"); exit(1);
+	}
+}
+
+static enum num_t t_signed(enum num_t t)
+{
+	switch (t) {
+	case U64: return S64;
+	case U32: return S32;
+	case S64: return S64;
+	case S32: return S32;
+	default: printf("t_signed!\n"); exit(1);
+	}
+}
+
+static enum num_t t_unsigned(enum num_t t)
+{
+	switch (t) {
+	case U64: return U64;
+	case U32: return U32;
+	case S64: return U64;
+	case S32: return U32;
+	default: printf("t_unsigned!\n"); exit(1);
+	}
+}
+
+#define UNUM_MAX_DECIMAL U16_MAX
+#define SNUM_MAX_DECIMAL S16_MAX
+#define SNUM_MIN_DECIMAL S16_MIN
+
+static bool num_is_small(enum num_t t, u64 x)
+{
+	switch (t) {
+	case U64: return (u64)x <= UNUM_MAX_DECIMAL;
+	case U32: return (u32)x <= UNUM_MAX_DECIMAL;
+	case S64: return (s64)x >= SNUM_MIN_DECIMAL && (s64)x <= SNUM_MAX_DECIMAL;
+	case S32: return (s32)x >= SNUM_MIN_DECIMAL && (s32)x <= SNUM_MAX_DECIMAL;
+	default: printf("num_is_small!\n"); exit(1);
+	}
+}
+
+static void snprintf_num(enum num_t t, struct strbuf *sb, u64 x)
+{
+	bool is_small = num_is_small(t, x);
+
+	if (is_small) {
+		switch (t) {
+		case U64: return snappendf(sb, "%llu", (u64)x);
+		case U32: return snappendf(sb, "%u", (u32)x);
+		case S64: return snappendf(sb, "%lld", (s64)x);
+		case S32: return snappendf(sb, "%d", (s32)x);
+		default: printf("snprintf_num!\n"); exit(1);
+		}
+	} else {
+		switch (t) {
+		case U64:
+			if (x == U64_MAX)
+				return snappendf(sb, "U64_MAX");
+			else if (x >= U64_MAX - 256)
+				return snappendf(sb, "U64_MAX-%llu", U64_MAX - x);
+			else
+				return snappendf(sb, "%#llx", (u64)x);
+		case U32:
+			if ((u32)x == U32_MAX)
+				return snappendf(sb, "U32_MAX");
+			else if ((u32)x >= U32_MAX - 256)
+				return snappendf(sb, "U32_MAX-%u", U32_MAX - (u32)x);
+			else
+				return snappendf(sb, "%#x", (u32)x);
+		case S64:
+			if ((s64)x == S64_MAX)
+				return snappendf(sb, "S64_MAX");
+			else if ((s64)x >= S64_MAX - 256)
+				return snappendf(sb, "S64_MAX-%lld", S64_MAX - (s64)x);
+			else if ((s64)x == S64_MIN)
+				return snappendf(sb, "S64_MIN");
+			else if ((s64)x <= S64_MIN + 256)
+				return snappendf(sb, "S64_MIN+%lld", (s64)x - S64_MIN);
+			else
+				return snappendf(sb, "%#llx", (s64)x);
+		case S32:
+			if ((s32)x == S32_MAX)
+				return snappendf(sb, "S32_MAX");
+			else if ((s32)x >= S32_MAX - 256)
+				return snappendf(sb, "S32_MAX-%d", S32_MAX - (s32)x);
+			else if ((s32)x == S32_MIN)
+				return snappendf(sb, "S32_MIN");
+			else if ((s32)x <= S32_MIN + 256)
+				return snappendf(sb, "S32_MIN+%d", (s32)x - S32_MIN);
+			else
+				return snappendf(sb, "%#x", (s32)x);
+		default: printf("snprintf_num!\n"); exit(1);
+		}
+	}
+}
+
+/* ===================================
+ * GENERIC RANGE STRUCT AND OPERATIONS
+ * ===================================
+ */
+struct range {
+	u64 a, b;
+};
+
+static void snprintf_range(enum num_t t, struct strbuf *sb, struct range x)
+{
+	if (x.a == x.b)
+		return snprintf_num(t, sb, x.a);
+
+	snappendf(sb, "[");
+	snprintf_num(t, sb, x.a);
+	snappendf(sb, "; ");
+	snprintf_num(t, sb, x.b);
+	snappendf(sb, "]");
+}
+
+static void print_range(enum num_t t, struct range x, const char *sfx)
+{
+	DEFINE_STRBUF(sb, 128);
+
+	snprintf_range(t, sb, x);
+	printf("%s%s", sb->buf, sfx);
+}
+
+static const struct range unkn[] = {
+	[U64] = { 0, U64_MAX },
+	[U32] = { 0, U32_MAX },
+	[S64] = { (u64)S64_MIN, (u64)S64_MAX },
+	[S32] = { (u64)(u32)S32_MIN, (u64)(u32)S32_MAX },
+};
+
+static struct range unkn_subreg(enum num_t t)
+{
+	switch (t) {
+	case U64: return unkn[U32];
+	case U32: return unkn[U32];
+	case S64: return unkn[U32];
+	case S32: return unkn[S32];
+	default: printf("unkn_subreg!\n"); exit(1);
+	}
+}
+
+static struct range range(enum num_t t, u64 a, u64 b)
+{
+	switch (t) {
+	case U64: return (struct range){ (u64)a, (u64)b };
+	case U32: return (struct range){ (u32)a, (u32)b };
+	case S64: return (struct range){ (s64)a, (s64)b };
+	case S32: return (struct range){ (u32)(s32)a, (u32)(s32)b };
+	default: printf("range!\n"); exit(1);
+	}
+}
+
+static __always_inline u32 sign64(u64 x) { return (x >> 63) & 1; }
+static __always_inline u32 sign32(u64 x) { return ((u32)x >> 31) & 1; }
+static __always_inline u32 upper32(u64 x) { return (u32)(x >> 32); }
+static __always_inline u64 swap_low32(u64 x, u32 y) { return (x & 0xffffffff00000000ULL) | y; }
+
+static bool range_eq(struct range x, struct range y)
+{
+	return x.a == y.a && x.b == y.b;
+}
+
+static struct range range_cast_to_s32(struct range x)
+{
+	u64 a = x.a, b = x.b;
+
+	/* if upper 32 bits are constant, lower 32 bits should form a proper
+	 * s32 range to be correct
+	 */
+	if (upper32(a) == upper32(b) && (s32)a <= (s32)b)
+		return range(S32, a, b);
+
+	/* Special case where upper bits form a small sequence of two
+	 * sequential numbers (in 32-bit unsigned space, so 0xffffffff to
+	 * 0x00000000 is also valid), while lower bits form a proper s32 range
+	 * going from negative numbers to positive numbers.
+	 *
+	 * E.g.: [0xfffffff0ffffff00; 0xfffffff100000010]. Iterating
+	 * over full 64-bit numbers range will form a proper [-16, 16]
+	 * ([0xffffff00; 0x00000010]) range in its lower 32 bits.
+	 */
+	if (upper32(a) + 1 == upper32(b) && (s32)a < 0 && (s32)b >= 0)
+		return range(S32, a, b);
+
+	/* otherwise we can't derive much meaningful information */
+	return unkn[S32];
+}
+
+static struct range range_cast_u64(enum num_t to_t, struct range x)
+{
+	u64 a = (u64)x.a, b = (u64)x.b;
+
+	switch (to_t) {
+	case U64:
+		return x;
+	case U32:
+		if (upper32(a) != upper32(b))
+			return unkn[U32];
+		return range(U32, a, b);
+	case S64:
+		if (sign64(a) != sign64(b))
+			return unkn[S64];
+		return range(S64, a, b);
+	case S32:
+		return range_cast_to_s32(x);
+	default: printf("range_cast_u64!\n"); exit(1);
+	}
+}
+
+static struct range range_cast_s64(enum num_t to_t, struct range x)
+{
+	s64 a = (s64)x.a, b = (s64)x.b;
+
+	switch (to_t) {
+	case U64:
+		/* equivalent to (s64)a <= (s64)b check */
+		if (sign64(a) != sign64(b))
+			return unkn[U64];
+		return range(U64, a, b);
+	case U32:
+		if (upper32(a) != upper32(b) || sign32(a) != sign32(b))
+			return unkn[U32];
+		return range(U32, a, b);
+	case S64:
+		return x;
+	case S32:
+		return range_cast_to_s32(x);
+	default: printf("range_cast_s64!\n"); exit(1);
+	}
+}
+
+static struct range range_cast_u32(enum num_t to_t, struct range x)
+{
+	u32 a = (u32)x.a, b = (u32)x.b;
+
+	switch (to_t) {
+	case U64:
+	case S64:
+		/* u32 is always a valid zero-extended u64/s64 */
+		return range(to_t, a, b);
+	case U32:
+		return x;
+	case S32:
+		return range_cast_to_s32(range(U32, a, b));
+	default: printf("range_cast_u32!\n"); exit(1);
+	}
+}
+
+static struct range range_cast_s32(enum num_t to_t, struct range x)
+{
+	s32 a = (s32)x.a, b = (s32)x.b;
+
+	switch (to_t) {
+	case U64:
+	case U32:
+	case S64:
+		if (sign32(a) != sign32(b))
+			return unkn[to_t];
+		return range(to_t, a, b);
+	case S32:
+		return x;
+	default: printf("range_cast_s32!\n"); exit(1);
+	}
+}
+
+/* Reinterpret range in *from_t* domain as a range in *to_t* domain preserving
+ * all possible information. Worst case, it will be unknown range within
+ * *to_t* domain, if nothing more specific can be guaranteed during the
+ * conversion
+ */
+static struct range range_cast(enum num_t from_t, enum num_t to_t, struct range from)
+{
+	switch (from_t) {
+	case U64: return range_cast_u64(to_t, from);
+	case U32: return range_cast_u32(to_t, from);
+	case S64: return range_cast_s64(to_t, from);
+	case S32: return range_cast_s32(to_t, from);
+	default: printf("range_cast!\n"); exit(1);
+	}
+}
+
+static bool is_valid_num(enum num_t t, u64 x)
+{
+	switch (t) {
+	case U64: return true;
+	case U32: return upper32(x) == 0;
+	case S64: return true;
+	case S32: return upper32(x) == 0;
+	default: printf("is_valid_num!\n"); exit(1);
+	}
+}
+
+static bool is_valid_range(enum num_t t, struct range x)
+{
+	if (!is_valid_num(t, x.a) || !is_valid_num(t, x.b))
+		return false;
+
+	switch (t) {
+	case U64: return (u64)x.a <= (u64)x.b;
+	case U32: return (u32)x.a <= (u32)x.b;
+	case S64: return (s64)x.a <= (s64)x.b;
+	case S32: return (s32)x.a <= (s32)x.b;
+	default: printf("is_valid_range!\n"); exit(1);
+	}
+}
+
+static struct range range_improve(enum num_t t, struct range old, struct range new)
+{
+	return range(t, max_t(t, old.a, new.a), min_t(t, old.b, new.b));
+}
+
+static struct range range_refine(enum num_t x_t, struct range x, enum num_t y_t, struct range y)
+{
+	struct range y_cast;
+
+	y_cast = range_cast(y_t, x_t, y);
+
+	/* If we know that
+	 *   - *x* is in the range of signed 32bit value, and
+	 *   - *y_cast* range is 32-bit signed non-negative
+	 * then *x* range can be improved with *y_cast* such that *x* range
+	 * is 32-bit signed non-negative. Otherwise, if the new range for *x*
+	 * allows upper 32-bit * 0xffffffff then the eventual new range for
+	 * *x* will be out of signed 32-bit range which violates the origin
+	 * *x* range.
+	 */
+	if (x_t == S64 && y_t == S32 && y_cast.a <= S32_MAX  && y_cast.b <= S32_MAX &&
+	    (s64)x.a >= S32_MIN && (s64)x.b <= S32_MAX)
+		return range_improve(x_t, x, y_cast);
+
+	/* the case when new range knowledge, *y*, is a 32-bit subregister
+	 * range, while previous range knowledge, *x*, is a full register
+	 * 64-bit range, needs special treatment to take into account upper 32
+	 * bits of full register range
+	 */
+	if (t_is_32(y_t) && !t_is_32(x_t)) {
+		struct range x_swap;
+
+		/* some combinations of upper 32 bits and sign bit can lead to
+		 * invalid ranges, in such cases it's easier to detect them
+		 * after cast/swap than try to enumerate all the conditions
+		 * under which transformation and knowledge transfer is valid
+		 */
+		x_swap = range(x_t, swap_low32(x.a, y_cast.a), swap_low32(x.b, y_cast.b));
+		if (!is_valid_range(x_t, x_swap))
+			return x;
+		return range_improve(x_t, x, x_swap);
+	}
+
+	if (!t_is_32(x_t) && !t_is_32(y_t) && x_t != y_t) {
+		if (x_t == S64 && x.a > x.b) {
+			if (x.b < y.a && x.a <= y.b)
+				return range(x_t, x.a, y.b);
+			if (x.a > y.b && x.b >= y.a)
+				return range(x_t, y.a, x.b);
+		} else if (x_t == U64 && y.a > y.b) {
+			if (y.b < x.a && y.a <= x.b)
+				return range(x_t, y.a, x.b);
+			if (y.a > x.b && y.b >= x.a)
+				return range(x_t, x.a, y.b);
+		}
+	}
+
+	/* otherwise, plain range cast and intersection works */
+	return range_improve(x_t, x, y_cast);
+}
+
+/* =======================
+ * GENERIC CONDITIONAL OPS
+ * =======================
+ */
+enum op { OP_LT, OP_LE, OP_GT, OP_GE, OP_EQ, OP_NE, first_op = OP_LT, last_op = OP_NE };
+
+static enum op complement_op(enum op op)
+{
+	switch (op) {
+	case OP_LT: return OP_GE;
+	case OP_LE: return OP_GT;
+	case OP_GT: return OP_LE;
+	case OP_GE: return OP_LT;
+	case OP_EQ: return OP_NE;
+	case OP_NE: return OP_EQ;
+	default: printf("complement_op!\n"); exit(1);
+	}
+}
+
+static const char *op_str(enum op op)
+{
+	switch (op) {
+	case OP_LT: return "<";
+	case OP_LE: return "<=";
+	case OP_GT: return ">";
+	case OP_GE: return ">=";
+	case OP_EQ: return "==";
+	case OP_NE: return "!=";
+	default: printf("op_str!\n"); exit(1);
+	}
+}
+
+/* Can register with range [x.a, x.b] *EVER* satisfy
+ * OP (<, <=, >, >=, ==, !=) relation to
+ * a register with range [y.a, y.b]
+ * _in *num_t* domain_
+ */
+static bool range_canbe_op(enum num_t t, struct range x, struct range y, enum op op)
+{
+#define range_canbe(T) do {									\
+	switch (op) {										\
+	case OP_LT: return (T)x.a < (T)y.b;							\
+	case OP_LE: return (T)x.a <= (T)y.b;							\
+	case OP_GT: return (T)x.b > (T)y.a;							\
+	case OP_GE: return (T)x.b >= (T)y.a;							\
+	case OP_EQ: return (T)max_t(t, x.a, y.a) <= (T)min_t(t, x.b, y.b);			\
+	case OP_NE: return !((T)x.a == (T)x.b && (T)y.a == (T)y.b && (T)x.a == (T)y.a);		\
+	default: printf("range_canbe op %d\n", op); exit(1);					\
+	}											\
+} while (0)
+
+	switch (t) {
+	case U64: { range_canbe(u64); }
+	case U32: { range_canbe(u32); }
+	case S64: { range_canbe(s64); }
+	case S32: { range_canbe(s32); }
+	default: printf("range_canbe!\n"); exit(1);
+	}
+#undef range_canbe
+}
+
+/* Does register with range [x.a, x.b] *ALWAYS* satisfy
+ * OP (<, <=, >, >=, ==, !=) relation to
+ * a register with range [y.a, y.b]
+ * _in *num_t* domain_
+ */
+static bool range_always_op(enum num_t t, struct range x, struct range y, enum op op)
+{
+	/* always op <=> ! canbe complement(op) */
+	return !range_canbe_op(t, x, y, complement_op(op));
+}
+
+/* Does register with range [x.a, x.b] *NEVER* satisfy
+ * OP (<, <=, >, >=, ==, !=) relation to
+ * a register with range [y.a, y.b]
+ * _in *num_t* domain_
+ */
+static bool range_never_op(enum num_t t, struct range x, struct range y, enum op op)
+{
+	return !range_canbe_op(t, x, y, op);
+}
+
+/* similar to verifier's is_branch_taken():
+ *    1 - always taken;
+ *    0 - never taken,
+ *   -1 - unsure.
+ */
+static int range_branch_taken_op(enum num_t t, struct range x, struct range y, enum op op)
+{
+	if (range_always_op(t, x, y, op))
+		return 1;
+	if (range_never_op(t, x, y, op))
+		return 0;
+	return -1;
+}
+
+/* What would be the new estimates for register x and y ranges assuming truthful
+ * OP comparison between them. I.e., (x OP y == true) => x <- newx, y <- newy.
+ *
+ * We assume "interesting" cases where ranges overlap. Cases where it's
+ * obvious that (x OP y) is either always true or false should be filtered with
+ * range_never and range_always checks.
+ */
+static void range_cond(enum num_t t, struct range x, struct range y,
+		       enum op op, struct range *newx, struct range *newy)
+{
+	if (!range_canbe_op(t, x, y, op)) {
+		/* nothing to adjust, can't happen, return original values */
+		*newx = x;
+		*newy = y;
+		return;
+	}
+	switch (op) {
+	case OP_LT:
+		*newx = range(t, x.a, min_t(t, x.b, y.b - 1));
+		*newy = range(t, max_t(t, x.a + 1, y.a), y.b);
+		break;
+	case OP_LE:
+		*newx = range(t, x.a, min_t(t, x.b, y.b));
+		*newy = range(t, max_t(t, x.a, y.a), y.b);
+		break;
+	case OP_GT:
+		*newx = range(t, max_t(t, x.a, y.a + 1), x.b);
+		*newy = range(t, y.a, min_t(t, x.b - 1, y.b));
+		break;
+	case OP_GE:
+		*newx = range(t, max_t(t, x.a, y.a), x.b);
+		*newy = range(t, y.a, min_t(t, x.b, y.b));
+		break;
+	case OP_EQ:
+		*newx = range(t, max_t(t, x.a, y.a), min_t(t, x.b, y.b));
+		*newy = range(t, max_t(t, x.a, y.a), min_t(t, x.b, y.b));
+		break;
+	case OP_NE:
+		/* below logic is supported by the verifier now */
+		if (x.a == x.b && x.a == y.a) {
+			/* X is a constant matching left side of Y */
+			*newx = range(t, x.a, x.b);
+			*newy = range(t, y.a + 1, y.b);
+		} else if (x.a == x.b && x.b == y.b) {
+			/* X is a constant matching right side of Y */
+			*newx = range(t, x.a, x.b);
+			*newy = range(t, y.a, y.b - 1);
+		} else if (y.a == y.b && x.a == y.a) {
+			/* Y is a constant matching left side of X */
+			*newx = range(t, x.a + 1, x.b);
+			*newy = range(t, y.a, y.b);
+		} else if (y.a == y.b && x.b == y.b) {
+			/* Y is a constant matching right side of X */
+			*newx = range(t, x.a, x.b - 1);
+			*newy = range(t, y.a, y.b);
+		} else {
+			/* generic case, can't derive more information */
+			*newx = range(t, x.a, x.b);
+			*newy = range(t, y.a, y.b);
+		}
+
+		break;
+	default:
+		break;
+	}
+}
+
+/* =======================
+ * REGISTER STATE HANDLING
+ * =======================
+ */
+struct reg_state {
+	struct range r[4]; /* indexed by enum num_t: U64, U32, S64, S32 */
+	bool valid;
+};
+
+static void print_reg_state(struct reg_state *r, const char *sfx)
+{
+	DEFINE_STRBUF(sb, 512);
+	enum num_t t;
+	int cnt = 0;
+
+	if (!r->valid) {
+		printf("<not found>%s", sfx);
+		return;
+	}
+
+	snappendf(sb, "scalar(");
+	for (t = first_t; t <= last_t; t++) {
+		snappendf(sb, "%s%s=", cnt++ ? "," : "", t_str(t));
+		snprintf_range(t, sb, r->r[t]);
+	}
+	snappendf(sb, ")");
+
+	printf("%s%s", sb->buf, sfx);
+}
+
+static void print_refinement(enum num_t s_t, struct range src,
+			     enum num_t d_t, struct range old, struct range new,
+			     const char *ctx)
+{
+	printf("REFINING (%s) (%s)SRC=", ctx, t_str(s_t));
+	print_range(s_t, src, "");
+	printf(" (%s)DST_OLD=", t_str(d_t));
+	print_range(d_t, old, "");
+	printf(" (%s)DST_NEW=", t_str(d_t));
+	print_range(d_t, new, "\n");
+}
+
+static void reg_state_refine(struct reg_state *r, enum num_t t, struct range x, const char *ctx)
+{
+	enum num_t d_t, s_t;
+	struct range old;
+	bool keep_going = false;
+
+again:
+	/* try to derive new knowledge from just learned range x of type t */
+	for (d_t = first_t; d_t <= last_t; d_t++) {
+		old = r->r[d_t];
+		r->r[d_t] = range_refine(d_t, r->r[d_t], t, x);
+		if (!range_eq(r->r[d_t], old)) {
+			keep_going = true;
+			if (env.verbosity >= VERBOSE_VERY)
+				print_refinement(t, x, d_t, old, r->r[d_t], ctx);
+		}
+	}
+
+	/* now see if we can derive anything new from updated reg_state's ranges */
+	for (s_t = first_t; s_t <= last_t; s_t++) {
+		for (d_t = first_t; d_t <= last_t; d_t++) {
+			old = r->r[d_t];
+			r->r[d_t] = range_refine(d_t, r->r[d_t], s_t, r->r[s_t]);
+			if (!range_eq(r->r[d_t], old)) {
+				keep_going = true;
+				if (env.verbosity >= VERBOSE_VERY)
+					print_refinement(s_t, r->r[s_t], d_t, old, r->r[d_t], ctx);
+			}
+		}
+	}
+
+	/* keep refining until we converge */
+	if (keep_going) {
+		keep_going = false;
+		goto again;
+	}
+}
+
+static void reg_state_set_const(struct reg_state *rs, enum num_t t, u64 val)
+{
+	enum num_t tt;
+
+	rs->valid = true;
+	for (tt = first_t; tt <= last_t; tt++)
+		rs->r[tt] = tt == t ? range(t, val, val) : unkn[tt];
+
+	reg_state_refine(rs, t, rs->r[t], "CONST");
+}
+
+static void reg_state_cond(enum num_t t, struct reg_state *x, struct reg_state *y, enum op op,
+			   struct reg_state *newx, struct reg_state *newy, const char *ctx)
+{
+	char buf[32];
+	enum num_t ts[2];
+	struct reg_state xx = *x, yy = *y;
+	int i, t_cnt;
+	struct range z1, z2;
+
+	if (op == OP_EQ || op == OP_NE) {
+		/* OP_EQ and OP_NE are sign-agnostic, so we need to process
+		 * both signed and unsigned domains at the same time
+		 */
+		ts[0] = t_unsigned(t);
+		ts[1] = t_signed(t);
+		t_cnt = 2;
+	} else {
+		ts[0] = t;
+		t_cnt = 1;
+	}
+
+	for (i = 0; i < t_cnt; i++) {
+		t = ts[i];
+		z1 = x->r[t];
+		z2 = y->r[t];
+
+		range_cond(t, z1, z2, op, &z1, &z2);
+
+		if (newx) {
+			snprintf(buf, sizeof(buf), "%s R1", ctx);
+			reg_state_refine(&xx, t, z1, buf);
+		}
+		if (newy) {
+			snprintf(buf, sizeof(buf), "%s R2", ctx);
+			reg_state_refine(&yy, t, z2, buf);
+		}
+	}
+
+	if (newx)
+		*newx = xx;
+	if (newy)
+		*newy = yy;
+}
+
+static int reg_state_branch_taken_op(enum num_t t, struct reg_state *x, struct reg_state *y,
+				     enum op op)
+{
+	if (op == OP_EQ || op == OP_NE) {
+		/* OP_EQ and OP_NE are sign-agnostic */
+		enum num_t tu = t_unsigned(t);
+		enum num_t ts = t_signed(t);
+		int br_u, br_s, br;
+
+		br_u = range_branch_taken_op(tu, x->r[tu], y->r[tu], op);
+		br_s = range_branch_taken_op(ts, x->r[ts], y->r[ts], op);
+
+		if (br_u >= 0 && br_s >= 0 && br_u != br_s)
+			ASSERT_FALSE(true, "branch taken inconsistency!\n");
+
+		/* if 64-bit ranges are indecisive, use 32-bit subranges to
+		 * eliminate always/never taken branches, if possible
+		 */
+		if (br_u == -1 && (t == U64 || t == S64)) {
+			br = range_branch_taken_op(U32, x->r[U32], y->r[U32], op);
+			/* we can only reject for OP_EQ, never take branch
+			 * based on lower 32 bits
+			 */
+			if (op == OP_EQ && br == 0)
+				return 0;
+			/* for OP_NEQ we can be conclusive only if lower 32 bits
+			 * differ and thus inequality branch is always taken
+			 */
+			if (op == OP_NE && br == 1)
+				return 1;
+
+			br = range_branch_taken_op(S32, x->r[S32], y->r[S32], op);
+			if (op == OP_EQ && br == 0)
+				return 0;
+			if (op == OP_NE && br == 1)
+				return 1;
+		}
+
+		return br_u >= 0 ? br_u : br_s;
+	}
+	return range_branch_taken_op(t, x->r[t], y->r[t], op);
+}
+
+/* =====================================
+ * BPF PROGS GENERATION AND VERIFICATION
+ * =====================================
+ */
+struct case_spec {
+	/* whether to init full register (r1) or sub-register (w1) */
+	bool init_subregs;
+	/* whether to establish initial value range on full register (r1) or
+	 * sub-register (w1)
+	 */
+	bool setup_subregs;
+	/* whether to establish initial value range using signed or unsigned
+	 * comparisons (i.e., initialize umin/umax or smin/smax directly)
+	 */
+	bool setup_signed;
+	/* whether to perform comparison on full registers or sub-registers */
+	bool compare_subregs;
+	/* whether to perform comparison using signed or unsigned operations */
+	bool compare_signed;
+};
+
+/* Generate test BPF program based on provided test ranges, operation, and
+ * specifications about register bitness and signedness.
+ */
+static int load_range_cmp_prog(struct range x, struct range y, enum op op,
+			       int branch_taken, struct case_spec spec,
+			       char *log_buf, size_t log_sz,
+			       int *false_pos, int *true_pos)
+{
+#define emit(insn) ({							\
+	struct bpf_insn __insns[] = { insn };				\
+	int __i;							\
+	for (__i = 0; __i < ARRAY_SIZE(__insns); __i++)			\
+		insns[cur_pos + __i] = __insns[__i];			\
+	cur_pos += __i;							\
+})
+#define JMP_TO(target) (target - cur_pos - 1)
+	int cur_pos = 0, exit_pos, fd, op_code;
+	struct bpf_insn insns[64];
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.log_level = 2,
+		.log_buf = log_buf,
+		.log_size = log_sz,
+		.prog_flags = testing_prog_flags(),
+	);
+
+	/* ; skip exit block below
+	 * goto +2;
+	 */
+	emit(BPF_JMP_A(2));
+	exit_pos = cur_pos;
+	/* ; exit block for all the preparatory conditionals
+	 * out:
+	 * r0 = 0;
+	 * exit;
+	 */
+	emit(BPF_MOV64_IMM(BPF_REG_0, 0));
+	emit(BPF_EXIT_INSN());
+	/*
+	 * ; assign r6/w6 and r7/w7 unpredictable u64/u32 value
+	 * call bpf_get_current_pid_tgid;
+	 * r6 = r0;               | w6 = w0;
+	 * call bpf_get_current_pid_tgid;
+	 * r7 = r0;               | w7 = w0;
+	 */
+	emit(BPF_EMIT_CALL(BPF_FUNC_get_current_pid_tgid));
+	if (spec.init_subregs)
+		emit(BPF_MOV32_REG(BPF_REG_6, BPF_REG_0));
+	else
+		emit(BPF_MOV64_REG(BPF_REG_6, BPF_REG_0));
+	emit(BPF_EMIT_CALL(BPF_FUNC_get_current_pid_tgid));
+	if (spec.init_subregs)
+		emit(BPF_MOV32_REG(BPF_REG_7, BPF_REG_0));
+	else
+		emit(BPF_MOV64_REG(BPF_REG_7, BPF_REG_0));
+	/* ; setup initial r6/w6 possible value range ([x.a, x.b])
+	 * r1 = %[x.a] ll;        | w1 = %[x.a];
+	 * r2 = %[x.b] ll;        | w2 = %[x.b];
+	 * if r6 < r1 goto out;   | if w6 < w1 goto out;
+	 * if r6 > r2 goto out;   | if w6 > w2 goto out;
+	 */
+	if (spec.setup_subregs) {
+		emit(BPF_MOV32_IMM(BPF_REG_1, (s32)x.a));
+		emit(BPF_MOV32_IMM(BPF_REG_2, (s32)x.b));
+		emit(BPF_JMP32_REG(spec.setup_signed ? BPF_JSLT : BPF_JLT,
+				   BPF_REG_6, BPF_REG_1, JMP_TO(exit_pos)));
+		emit(BPF_JMP32_REG(spec.setup_signed ? BPF_JSGT : BPF_JGT,
+				   BPF_REG_6, BPF_REG_2, JMP_TO(exit_pos)));
+	} else {
+		emit(BPF_LD_IMM64(BPF_REG_1, x.a));
+		emit(BPF_LD_IMM64(BPF_REG_2, x.b));
+		emit(BPF_JMP_REG(spec.setup_signed ? BPF_JSLT : BPF_JLT,
+				 BPF_REG_6, BPF_REG_1, JMP_TO(exit_pos)));
+		emit(BPF_JMP_REG(spec.setup_signed ? BPF_JSGT : BPF_JGT,
+				 BPF_REG_6, BPF_REG_2, JMP_TO(exit_pos)));
+	}
+	/* ; setup initial r7/w7 possible value range ([y.a, y.b])
+	 * r1 = %[y.a] ll;        | w1 = %[y.a];
+	 * r2 = %[y.b] ll;        | w2 = %[y.b];
+	 * if r7 < r1 goto out;   | if w7 < w1 goto out;
+	 * if r7 > r2 goto out;   | if w7 > w2 goto out;
+	 */
+	if (spec.setup_subregs) {
+		emit(BPF_MOV32_IMM(BPF_REG_1, (s32)y.a));
+		emit(BPF_MOV32_IMM(BPF_REG_2, (s32)y.b));
+		emit(BPF_JMP32_REG(spec.setup_signed ? BPF_JSLT : BPF_JLT,
+				   BPF_REG_7, BPF_REG_1, JMP_TO(exit_pos)));
+		emit(BPF_JMP32_REG(spec.setup_signed ? BPF_JSGT : BPF_JGT,
+				   BPF_REG_7, BPF_REG_2, JMP_TO(exit_pos)));
+	} else {
+		emit(BPF_LD_IMM64(BPF_REG_1, y.a));
+		emit(BPF_LD_IMM64(BPF_REG_2, y.b));
+		emit(BPF_JMP_REG(spec.setup_signed ? BPF_JSLT : BPF_JLT,
+				 BPF_REG_7, BPF_REG_1, JMP_TO(exit_pos)));
+		emit(BPF_JMP_REG(spec.setup_signed ? BPF_JSGT : BPF_JGT,
+				 BPF_REG_7, BPF_REG_2, JMP_TO(exit_pos)));
+	}
+	/* ; range test instruction
+	 * if r6 <op> r7 goto +3; | if w6 <op> w7 goto +3;
+	 */
+	switch (op) {
+	case OP_LT: op_code = spec.compare_signed ? BPF_JSLT : BPF_JLT; break;
+	case OP_LE: op_code = spec.compare_signed ? BPF_JSLE : BPF_JLE; break;
+	case OP_GT: op_code = spec.compare_signed ? BPF_JSGT : BPF_JGT; break;
+	case OP_GE: op_code = spec.compare_signed ? BPF_JSGE : BPF_JGE; break;
+	case OP_EQ: op_code = BPF_JEQ; break;
+	case OP_NE: op_code = BPF_JNE; break;
+	default:
+		printf("unrecognized op %d\n", op);
+		return -ENOTSUP;
+	}
+	/* ; BEFORE conditional, r0/w0 = {r6/w6,r7/w7} is to extract verifier state reliably
+	 * ; this is used for debugging, as verifier doesn't always print
+	 * ; registers states as of condition jump instruction (e.g., when
+	 * ; precision marking happens)
+	 * r0 = r6;               | w0 = w6;
+	 * r0 = r7;               | w0 = w7;
+	 */
+	if (spec.compare_subregs) {
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_7));
+	} else {
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_7));
+	}
+	if (spec.compare_subregs)
+		emit(BPF_JMP32_REG(op_code, BPF_REG_6, BPF_REG_7, 3));
+	else
+		emit(BPF_JMP_REG(op_code, BPF_REG_6, BPF_REG_7, 3));
+	/* ; FALSE branch, r0/w0 = {r6/w6,r7/w7} is to extract verifier state reliably
+	 * r0 = r6;               | w0 = w6;
+	 * r0 = r7;               | w0 = w7;
+	 * exit;
+	 */
+	*false_pos = cur_pos;
+	if (spec.compare_subregs) {
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_7));
+	} else {
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_7));
+	}
+	if (branch_taken == 1) /* false branch is never taken */
+		emit(BPF_EMIT_CALL(0xDEAD)); /* poison this branch */
+	else
+		emit(BPF_EXIT_INSN());
+	/* ; TRUE branch, r0/w0 = {r6/w6,r7/w7} is to extract verifier state reliably
+	 * r0 = r6;               | w0 = w6;
+	 * r0 = r7;               | w0 = w7;
+	 * exit;
+	 */
+	*true_pos = cur_pos;
+	if (spec.compare_subregs) {
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV32_REG(BPF_REG_0, BPF_REG_7));
+	} else {
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_6));
+		emit(BPF_MOV64_REG(BPF_REG_0, BPF_REG_7));
+	}
+	if (branch_taken == 0) /* true branch is never taken */
+		emit(BPF_EMIT_CALL(0xDEAD)); /* poison this branch */
+	emit(BPF_EXIT_INSN()); /* last instruction has to be exit */
+
+	fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT, "reg_bounds_test",
+			   "GPL", insns, cur_pos, &opts);
+	if (fd < 0)
+		return fd;
+
+	close(fd);
+	return 0;
+#undef emit
+#undef JMP_TO
+}
+
+#define str_has_pfx(str, pfx) (strncmp(str, pfx, strlen(pfx)) == 0)
+
+/* Parse register state from verifier log.
+ * `s` should point to the start of "Rx = ..." substring in the verifier log.
+ */
+static int parse_reg_state(const char *s, struct reg_state *reg)
+{
+	/* There are two generic forms for SCALAR register:
+	 * - known constant: R6_rwD=P%lld
+	 * - range: R6_rwD=scalar(id=1,...), where "..." is a comma-separated
+	 *   list of optional range specifiers:
+	 *     - umin=%llu, if missing, assumed 0;
+	 *     - umax=%llu, if missing, assumed U64_MAX;
+	 *     - smin=%lld, if missing, assumed S64_MIN;
+	 *     - smax=%lld, if missing, assumed S64_MAX;
+	 *     - umin32=%d, if missing, assumed 0;
+	 *     - umax32=%d, if missing, assumed U32_MAX;
+	 *     - smin32=%d, if missing, assumed S32_MIN;
+	 *     - smax32=%d, if missing, assumed S32_MAX;
+	 *     - var_off=(%#llx; %#llx), tnum part, we don't care about it.
+	 *
+	 * If some of the values are equal, they will be grouped (but min/max
+	 * are not mixed together, and similarly negative values are not
+	 * grouped with non-negative ones). E.g.:
+	 *
+	 *   R6_w=Pscalar(smin=smin32=0, smax=umax=umax32=1000)
+	 *
+	 * _rwD part is optional (and any of the letters can be missing).
+	 * P (precision mark) is optional as well.
+	 *
+	 * Anything inside scalar() is optional, including id, of course.
+	 */
+	struct {
+		const char *pfx;
+		u64 *dst, def;
+		bool is_32, is_set;
+	} *f, fields[8] = {
+		{"smin=", &reg->r[S64].a, S64_MIN},
+		{"smax=", &reg->r[S64].b, S64_MAX},
+		{"umin=", &reg->r[U64].a, 0},
+		{"umax=", &reg->r[U64].b, U64_MAX},
+		{"smin32=", &reg->r[S32].a, (u32)S32_MIN, true},
+		{"smax32=", &reg->r[S32].b, (u32)S32_MAX, true},
+		{"umin32=", &reg->r[U32].a, 0,            true},
+		{"umax32=", &reg->r[U32].b, U32_MAX,      true},
+	};
+	const char *p;
+	int i;
+
+	p = strchr(s, '=');
+	if (!p)
+		return -EINVAL;
+	p++;
+	if (*p == 'P')
+		p++;
+
+	if (!str_has_pfx(p, "scalar(")) {
+		long long sval;
+		enum num_t t;
+
+		if (p[0] == '0' && p[1] == 'x') {
+			if (sscanf(p, "%llx", &sval) != 1)
+				return -EINVAL;
+		} else {
+			if (sscanf(p, "%lld", &sval) != 1)
+				return -EINVAL;
+		}
+
+		reg->valid = true;
+		for (t = first_t; t <= last_t; t++) {
+			reg->r[t] = range(t, sval, sval);
+		}
+		return 0;
+	}
+
+	p += sizeof("scalar");
+	while (p) {
+		int midxs[ARRAY_SIZE(fields)], mcnt = 0;
+		u64 val;
+
+		for (i = 0; i < ARRAY_SIZE(fields); i++) {
+			f = &fields[i];
+			if (!str_has_pfx(p, f->pfx))
+				continue;
+			midxs[mcnt++] = i;
+			p += strlen(f->pfx);
+		}
+
+		if (mcnt) {
+			/* populate all matched fields */
+			if (p[0] == '0' && p[1] == 'x') {
+				if (sscanf(p, "%llx", &val) != 1)
+					return -EINVAL;
+			} else {
+				if (sscanf(p, "%lld", &val) != 1)
+					return -EINVAL;
+			}
+
+			for (i = 0; i < mcnt; i++) {
+				f = &fields[midxs[i]];
+				f->is_set = true;
+				*f->dst = f->is_32 ? (u64)(u32)val : val;
+			}
+		} else if (str_has_pfx(p, "var_off")) {
+			/* skip "var_off=(0x0; 0x3f)" part completely */
+			p = strchr(p, ')');
+			if (!p)
+				return -EINVAL;
+			p++;
+		}
+
+		p = strpbrk(p, ",)");
+		if (*p == ')')
+			break;
+		if (p)
+			p++;
+	}
+
+	reg->valid = true;
+
+	for (i = 0; i < ARRAY_SIZE(fields); i++) {
+		f = &fields[i];
+		if (!f->is_set)
+			*f->dst = f->def;
+	}
+
+	return 0;
+}
+
+
+/* Parse all register states (TRUE/FALSE branches and DST/SRC registers)
+ * out of the verifier log for a corresponding test case BPF program.
+ */
+static int parse_range_cmp_log(const char *log_buf, struct case_spec spec,
+			       int false_pos, int true_pos,
+			       struct reg_state *false1_reg, struct reg_state *false2_reg,
+			       struct reg_state *true1_reg, struct reg_state *true2_reg)
+{
+	struct {
+		int insn_idx;
+		int reg_idx;
+		const char *reg_upper;
+		struct reg_state *state;
+	} specs[] = {
+		{false_pos,     6, "R6=", false1_reg},
+		{false_pos + 1, 7, "R7=", false2_reg},
+		{true_pos,      6, "R6=", true1_reg},
+		{true_pos + 1,  7, "R7=", true2_reg},
+	};
+	char buf[32];
+	const char *p = log_buf, *q;
+	int i, err;
+
+	for (i = 0; i < 4; i++) {
+		sprintf(buf, "%d: (%s) %s = %s%d", specs[i].insn_idx,
+			spec.compare_subregs ? "bc" : "bf",
+			spec.compare_subregs ? "w0" : "r0",
+			spec.compare_subregs ? "w" : "r", specs[i].reg_idx);
+
+		q = strstr(p, buf);
+		if (!q) {
+			*specs[i].state = (struct reg_state){.valid = false};
+			continue;
+		}
+		p = strstr(q, specs[i].reg_upper);
+		if (!p)
+			return -EINVAL;
+		err = parse_reg_state(p, specs[i].state);
+		if (err)
+			return -EINVAL;
+	}
+	return 0;
+}
+
+/* Validate ranges match, and print details if they don't */
+static bool assert_range_eq(enum num_t t, struct range x, struct range y,
+			    const char *ctx1, const char *ctx2)
+{
+	DEFINE_STRBUF(sb, 512);
+
+	if (range_eq(x, y))
+		return true;
+
+	snappendf(sb, "MISMATCH %s.%s: ", ctx1, ctx2);
+	snprintf_range(t, sb, x);
+	snappendf(sb, " != ");
+	snprintf_range(t, sb, y);
+
+	printf("%s\n", sb->buf);
+
+	return false;
+}
+
+/* Validate that register states match, and print details if they don't */
+static bool assert_reg_state_eq(struct reg_state *r, struct reg_state *e, const char *ctx)
+{
+	bool ok = true;
+	enum num_t t;
+
+	if (r->valid != e->valid) {
+		printf("MISMATCH %s: actual %s != expected %s\n", ctx,
+		       r->valid ? "<valid>" : "<invalid>",
+		       e->valid ? "<valid>" : "<invalid>");
+		return false;
+	}
+
+	if (!r->valid)
+		return true;
+
+	for (t = first_t; t <= last_t; t++) {
+		if (!assert_range_eq(t, r->r[t], e->r[t], ctx, t_str(t)))
+			ok = false;
+	}
+
+	return ok;
+}
+
+/* Printf verifier log, filtering out irrelevant noise */
+static void print_verifier_log(const char *buf)
+{
+	const char *p;
+
+	while (buf[0]) {
+		p = strchrnul(buf, '\n');
+
+		/* filter out irrelevant precision backtracking logs */
+		if (str_has_pfx(buf, "mark_precise: "))
+			goto skip_line;
+
+		printf("%.*s\n", (int)(p - buf), buf);
+
+skip_line:
+		buf = *p == '\0' ? p : p + 1;
+	}
+}
+
+/* Simulate provided test case purely with our own range-based logic.
+ * This is done to set up expectations for verifier's branch_taken logic and
+ * verifier's register states in the verifier log.
+ */
+static void sim_case(enum num_t init_t, enum num_t cond_t,
+		     struct range x, struct range y, enum op op,
+		     struct reg_state *fr1, struct reg_state *fr2,
+		     struct reg_state *tr1, struct reg_state *tr2,
+		     int *branch_taken)
+{
+	const u64 A = x.a;
+	const u64 B = x.b;
+	const u64 C = y.a;
+	const u64 D = y.b;
+	struct reg_state rc;
+	enum op rev_op = complement_op(op);
+	enum num_t t;
+
+	fr1->valid = fr2->valid = true;
+	tr1->valid = tr2->valid = true;
+	for (t = first_t; t <= last_t; t++) {
+		/* if we are initializing using 32-bit subregisters,
+		 * full registers get upper 32 bits zeroed automatically
+		 */
+		struct range z = t_is_32(init_t) ? unkn_subreg(t) : unkn[t];
+
+		fr1->r[t] = fr2->r[t] = tr1->r[t] = tr2->r[t] = z;
+	}
+
+	/* step 1: r1 >= A, r2 >= C */
+	reg_state_set_const(&rc, init_t, A);
+	reg_state_cond(init_t, fr1, &rc, OP_GE, fr1, NULL, "r1>=A");
+	reg_state_set_const(&rc, init_t, C);
+	reg_state_cond(init_t, fr2, &rc, OP_GE, fr2, NULL, "r2>=C");
+	*tr1 = *fr1;
+	*tr2 = *fr2;
+	if (env.verbosity >= VERBOSE_VERY) {
+		printf("STEP1 (%s) R1: ", t_str(init_t)); print_reg_state(fr1, "\n");
+		printf("STEP1 (%s) R2: ", t_str(init_t)); print_reg_state(fr2, "\n");
+	}
+
+	/* step 2: r1 <= B, r2 <= D */
+	reg_state_set_const(&rc, init_t, B);
+	reg_state_cond(init_t, fr1, &rc, OP_LE, fr1, NULL, "r1<=B");
+	reg_state_set_const(&rc, init_t, D);
+	reg_state_cond(init_t, fr2, &rc, OP_LE, fr2, NULL, "r2<=D");
+	*tr1 = *fr1;
+	*tr2 = *fr2;
+	if (env.verbosity >= VERBOSE_VERY) {
+		printf("STEP2 (%s) R1: ", t_str(init_t)); print_reg_state(fr1, "\n");
+		printf("STEP2 (%s) R2: ", t_str(init_t)); print_reg_state(fr2, "\n");
+	}
+
+	/* step 3: r1 <op> r2 */
+	*branch_taken = reg_state_branch_taken_op(cond_t, fr1, fr2, op);
+	fr1->valid = fr2->valid = false;
+	tr1->valid = tr2->valid = false;
+	if (*branch_taken != 1) { /* FALSE is possible */
+		fr1->valid = fr2->valid = true;
+		reg_state_cond(cond_t, fr1, fr2, rev_op, fr1, fr2, "FALSE");
+	}
+	if (*branch_taken != 0) { /* TRUE is possible */
+		tr1->valid = tr2->valid = true;
+		reg_state_cond(cond_t, tr1, tr2, op, tr1, tr2, "TRUE");
+	}
+	if (env.verbosity >= VERBOSE_VERY) {
+		printf("STEP3 (%s) FALSE R1:", t_str(cond_t)); print_reg_state(fr1, "\n");
+		printf("STEP3 (%s) FALSE R2:", t_str(cond_t)); print_reg_state(fr2, "\n");
+		printf("STEP3 (%s) TRUE  R1:", t_str(cond_t)); print_reg_state(tr1, "\n");
+		printf("STEP3 (%s) TRUE  R2:", t_str(cond_t)); print_reg_state(tr2, "\n");
+	}
+}
+
+/* ===============================
+ * HIGH-LEVEL TEST CASE VALIDATION
+ * ===============================
+ */
+static u32 upper_seeds[] = {
+	0,
+	1,
+	U32_MAX,
+	U32_MAX - 1,
+	S32_MAX,
+	(u32)S32_MIN,
+};
+
+static u32 lower_seeds[] = {
+	0,
+	1,
+	2, (u32)-2,
+	255, (u32)-255,
+	UINT_MAX,
+	UINT_MAX - 1,
+	INT_MAX,
+	(u32)INT_MIN,
+};
+
+struct ctx {
+	int val_cnt, subval_cnt, range_cnt, subrange_cnt;
+	u64 uvals[ARRAY_SIZE(upper_seeds) * ARRAY_SIZE(lower_seeds)];
+	s64 svals[ARRAY_SIZE(upper_seeds) * ARRAY_SIZE(lower_seeds)];
+	u32 usubvals[ARRAY_SIZE(lower_seeds)];
+	s32 ssubvals[ARRAY_SIZE(lower_seeds)];
+	struct range *uranges, *sranges;
+	struct range *usubranges, *ssubranges;
+	int max_failure_cnt, cur_failure_cnt;
+	int total_case_cnt, case_cnt;
+	int rand_case_cnt;
+	unsigned rand_seed;
+	__u64 start_ns;
+	char progress_ctx[64];
+};
+
+static void cleanup_ctx(struct ctx *ctx)
+{
+	free(ctx->uranges);
+	free(ctx->sranges);
+	free(ctx->usubranges);
+	free(ctx->ssubranges);
+}
+
+struct subtest_case {
+	enum num_t init_t;
+	enum num_t cond_t;
+	struct range x;
+	struct range y;
+	enum op op;
+};
+
+static void subtest_case_str(struct strbuf *sb, struct subtest_case *t, bool use_op)
+{
+	snappendf(sb, "(%s)", t_str(t->init_t));
+	snprintf_range(t->init_t, sb, t->x);
+	snappendf(sb, " (%s)%s ", t_str(t->cond_t), use_op ? op_str(t->op) : "<op>");
+	snprintf_range(t->init_t, sb, t->y);
+}
+
+/* Generate and validate test case based on specific combination of setup
+ * register ranges (including their expected num_t domain), and conditional
+ * operation to perform (including num_t domain in which it has to be
+ * performed)
+ */
+static int verify_case_op(enum num_t init_t, enum num_t cond_t,
+			  struct range x, struct range y, enum op op)
+{
+	char log_buf[256 * 1024];
+	size_t log_sz = sizeof(log_buf);
+	int err, false_pos = 0, true_pos = 0, branch_taken;
+	struct reg_state fr1, fr2, tr1, tr2;
+	struct reg_state fe1, fe2, te1, te2;
+	bool failed = false;
+	struct case_spec spec = {
+		.init_subregs = (init_t == U32 || init_t == S32),
+		.setup_subregs = (init_t == U32 || init_t == S32),
+		.setup_signed = (init_t == S64 || init_t == S32),
+		.compare_subregs = (cond_t == U32 || cond_t == S32),
+		.compare_signed = (cond_t == S64 || cond_t == S32),
+	};
+
+	log_buf[0] = '\0';
+
+	sim_case(init_t, cond_t, x, y, op, &fe1, &fe2, &te1, &te2, &branch_taken);
+
+	err = load_range_cmp_prog(x, y, op, branch_taken, spec,
+				  log_buf, log_sz, &false_pos, &true_pos);
+	if (err) {
+		ASSERT_OK(err, "load_range_cmp_prog");
+		failed = true;
+	}
+
+	err = parse_range_cmp_log(log_buf, spec, false_pos, true_pos,
+				  &fr1, &fr2, &tr1, &tr2);
+	if (err) {
+		ASSERT_OK(err, "parse_range_cmp_log");
+		failed = true;
+	}
+
+	if (!assert_reg_state_eq(&fr1, &fe1, "false_reg1") ||
+	    !assert_reg_state_eq(&fr2, &fe2, "false_reg2") ||
+	    !assert_reg_state_eq(&tr1, &te1, "true_reg1") ||
+	    !assert_reg_state_eq(&tr2, &te2, "true_reg2")) {
+		failed = true;
+	}
+
+	if (failed || env.verbosity >= VERBOSE_NORMAL) {
+		if (failed || env.verbosity >= VERBOSE_VERY) {
+			printf("VERIFIER LOG:\n========================\n");
+			print_verifier_log(log_buf);
+			printf("=====================\n");
+		}
+		printf("ACTUAL   FALSE1: "); print_reg_state(&fr1, "\n");
+		printf("EXPECTED FALSE1: "); print_reg_state(&fe1, "\n");
+		printf("ACTUAL   FALSE2: "); print_reg_state(&fr2, "\n");
+		printf("EXPECTED FALSE2: "); print_reg_state(&fe2, "\n");
+		printf("ACTUAL   TRUE1:  "); print_reg_state(&tr1, "\n");
+		printf("EXPECTED TRUE1:  "); print_reg_state(&te1, "\n");
+		printf("ACTUAL   TRUE2:  "); print_reg_state(&tr2, "\n");
+		printf("EXPECTED TRUE2:  "); print_reg_state(&te2, "\n");
+
+		return failed ? -EINVAL : 0;
+	}
+
+	return 0;
+}
+
+/* Given setup ranges and number types, go over all supported operations,
+ * generating individual subtest for each allowed combination
+ */
+static int verify_case_opt(struct ctx *ctx, enum num_t init_t, enum num_t cond_t,
+			   struct range x, struct range y, bool is_subtest)
+{
+	DEFINE_STRBUF(sb, 256);
+	int err;
+	struct subtest_case sub = {
+		.init_t = init_t,
+		.cond_t = cond_t,
+		.x = x,
+		.y = y,
+	};
+
+	sb->pos = 0; /* reset position in strbuf */
+	subtest_case_str(sb, &sub, false /* ignore op */);
+	if (is_subtest && !test__start_subtest(sb->buf))
+		return 0;
+
+	for (sub.op = first_op; sub.op <= last_op; sub.op++) {
+		sb->pos = 0; /* reset position in strbuf */
+		subtest_case_str(sb, &sub, true /* print op */);
+
+		if (env.verbosity >= VERBOSE_NORMAL) /* this speeds up debugging */
+			printf("TEST CASE: %s\n", sb->buf);
+
+		err = verify_case_op(init_t, cond_t, x, y, sub.op);
+		if (err || env.verbosity >= VERBOSE_NORMAL)
+			ASSERT_OK(err, sb->buf);
+		if (err) {
+			ctx->cur_failure_cnt++;
+			if (ctx->cur_failure_cnt > ctx->max_failure_cnt)
+				return err;
+			return 0; /* keep testing other cases */
+		}
+		ctx->case_cnt++;
+		if ((ctx->case_cnt % 10000) == 0) {
+			double progress = (ctx->case_cnt + 0.0) / ctx->total_case_cnt;
+			u64 elapsed_ns = get_time_ns() - ctx->start_ns;
+			double remain_ns = elapsed_ns / progress * (1 - progress);
+
+			fprintf(env.stderr_saved, "PROGRESS (%s): %d/%d (%.2lf%%), "
+					    "elapsed %llu mins (%.2lf hrs), "
+					    "ETA %.0lf mins (%.2lf hrs)\n",
+				ctx->progress_ctx,
+				ctx->case_cnt, ctx->total_case_cnt, 100.0 * progress,
+				elapsed_ns / 1000000000 / 60,
+				elapsed_ns / 1000000000.0 / 3600,
+				remain_ns / 1000000000.0 / 60,
+				remain_ns / 1000000000.0 / 3600);
+		}
+	}
+
+	return 0;
+}
+
+static int verify_case(struct ctx *ctx, enum num_t init_t, enum num_t cond_t,
+		       struct range x, struct range y)
+{
+	return verify_case_opt(ctx, init_t, cond_t, x, y, true /* is_subtest */);
+}
+
+/* ================================
+ * GENERATED CASES FROM SEED VALUES
+ * ================================
+ */
+static int u64_cmp(const void *p1, const void *p2)
+{
+	u64 x1 = *(const u64 *)p1, x2 = *(const u64 *)p2;
+
+	return x1 != x2 ? (x1 < x2 ? -1 : 1) : 0;
+}
+
+static int u32_cmp(const void *p1, const void *p2)
+{
+	u32 x1 = *(const u32 *)p1, x2 = *(const u32 *)p2;
+
+	return x1 != x2 ? (x1 < x2 ? -1 : 1) : 0;
+}
+
+static int s64_cmp(const void *p1, const void *p2)
+{
+	s64 x1 = *(const s64 *)p1, x2 = *(const s64 *)p2;
+
+	return x1 != x2 ? (x1 < x2 ? -1 : 1) : 0;
+}
+
+static int s32_cmp(const void *p1, const void *p2)
+{
+	s32 x1 = *(const s32 *)p1, x2 = *(const s32 *)p2;
+
+	return x1 != x2 ? (x1 < x2 ? -1 : 1) : 0;
+}
+
+/* Generate valid unique constants from seeds, both signed and unsigned */
+static void gen_vals(struct ctx *ctx)
+{
+	int i, j, cnt = 0;
+
+	for (i = 0; i < ARRAY_SIZE(upper_seeds); i++) {
+		for (j = 0; j < ARRAY_SIZE(lower_seeds); j++) {
+			ctx->uvals[cnt++] = (((u64)upper_seeds[i]) << 32) | lower_seeds[j];
+		}
+	}
+
+	/* sort and compact uvals (i.e., it's `sort | uniq`) */
+	qsort(ctx->uvals, cnt, sizeof(*ctx->uvals), u64_cmp);
+	for (i = 1, j = 0; i < cnt; i++) {
+		if (ctx->uvals[j] == ctx->uvals[i])
+			continue;
+		j++;
+		ctx->uvals[j] = ctx->uvals[i];
+	}
+	ctx->val_cnt = j + 1;
+
+	/* we have exactly the same number of s64 values, they are just in
+	 * a different order than u64s, so just sort them differently
+	 */
+	for (i = 0; i < ctx->val_cnt; i++)
+		ctx->svals[i] = ctx->uvals[i];
+	qsort(ctx->svals, ctx->val_cnt, sizeof(*ctx->svals), s64_cmp);
+
+	if (env.verbosity >= VERBOSE_SUPER) {
+		DEFINE_STRBUF(sb1, 256);
+		DEFINE_STRBUF(sb2, 256);
+
+		for (i = 0; i < ctx->val_cnt; i++) {
+			sb1->pos = sb2->pos = 0;
+			snprintf_num(U64, sb1, ctx->uvals[i]);
+			snprintf_num(S64, sb2, ctx->svals[i]);
+			printf("SEED #%d: u64=%-20s s64=%-20s\n", i, sb1->buf, sb2->buf);
+		}
+	}
+
+	/* 32-bit values are generated separately */
+	cnt = 0;
+	for (i = 0; i < ARRAY_SIZE(lower_seeds); i++) {
+		ctx->usubvals[cnt++] = lower_seeds[i];
+	}
+
+	/* sort and compact usubvals (i.e., it's `sort | uniq`) */
+	qsort(ctx->usubvals, cnt, sizeof(*ctx->usubvals), u32_cmp);
+	for (i = 1, j = 0; i < cnt; i++) {
+		if (ctx->usubvals[j] == ctx->usubvals[i])
+			continue;
+		j++;
+		ctx->usubvals[j] = ctx->usubvals[i];
+	}
+	ctx->subval_cnt = j + 1;
+
+	for (i = 0; i < ctx->subval_cnt; i++)
+		ctx->ssubvals[i] = ctx->usubvals[i];
+	qsort(ctx->ssubvals, ctx->subval_cnt, sizeof(*ctx->ssubvals), s32_cmp);
+
+	if (env.verbosity >= VERBOSE_SUPER) {
+		DEFINE_STRBUF(sb1, 256);
+		DEFINE_STRBUF(sb2, 256);
+
+		for (i = 0; i < ctx->subval_cnt; i++) {
+			sb1->pos = sb2->pos = 0;
+			snprintf_num(U32, sb1, ctx->usubvals[i]);
+			snprintf_num(S32, sb2, ctx->ssubvals[i]);
+			printf("SUBSEED #%d: u32=%-10s s32=%-10s\n", i, sb1->buf, sb2->buf);
+		}
+	}
+}
+
+/* Generate valid ranges from upper/lower seeds */
+static int gen_ranges(struct ctx *ctx)
+{
+	int i, j, cnt = 0;
+
+	for (i = 0; i < ctx->val_cnt; i++) {
+		for (j = i; j < ctx->val_cnt; j++) {
+			if (env.verbosity >= VERBOSE_SUPER) {
+				DEFINE_STRBUF(sb1, 256);
+				DEFINE_STRBUF(sb2, 256);
+
+				sb1->pos = sb2->pos = 0;
+				snprintf_range(U64, sb1, range(U64, ctx->uvals[i], ctx->uvals[j]));
+				snprintf_range(S64, sb2, range(S64, ctx->svals[i], ctx->svals[j]));
+				printf("RANGE #%d: u64=%-40s s64=%-40s\n", cnt, sb1->buf, sb2->buf);
+			}
+			cnt++;
+		}
+	}
+	ctx->range_cnt = cnt;
+
+	ctx->uranges = calloc(ctx->range_cnt, sizeof(*ctx->uranges));
+	if (!ASSERT_OK_PTR(ctx->uranges, "uranges_calloc"))
+		return -EINVAL;
+	ctx->sranges = calloc(ctx->range_cnt, sizeof(*ctx->sranges));
+	if (!ASSERT_OK_PTR(ctx->sranges, "sranges_calloc"))
+		return -EINVAL;
+
+	cnt = 0;
+	for (i = 0; i < ctx->val_cnt; i++) {
+		for (j = i; j < ctx->val_cnt; j++) {
+			ctx->uranges[cnt] = range(U64, ctx->uvals[i], ctx->uvals[j]);
+			ctx->sranges[cnt] = range(S64, ctx->svals[i], ctx->svals[j]);
+			cnt++;
+		}
+	}
+
+	cnt = 0;
+	for (i = 0; i < ctx->subval_cnt; i++) {
+		for (j = i; j < ctx->subval_cnt; j++) {
+			if (env.verbosity >= VERBOSE_SUPER) {
+				DEFINE_STRBUF(sb1, 256);
+				DEFINE_STRBUF(sb2, 256);
+
+				sb1->pos = sb2->pos = 0;
+				snprintf_range(U32, sb1, range(U32, ctx->usubvals[i], ctx->usubvals[j]));
+				snprintf_range(S32, sb2, range(S32, ctx->ssubvals[i], ctx->ssubvals[j]));
+				printf("SUBRANGE #%d: u32=%-20s s32=%-20s\n", cnt, sb1->buf, sb2->buf);
+			}
+			cnt++;
+		}
+	}
+	ctx->subrange_cnt = cnt;
+
+	ctx->usubranges = calloc(ctx->subrange_cnt, sizeof(*ctx->usubranges));
+	if (!ASSERT_OK_PTR(ctx->usubranges, "usubranges_calloc"))
+		return -EINVAL;
+	ctx->ssubranges = calloc(ctx->subrange_cnt, sizeof(*ctx->ssubranges));
+	if (!ASSERT_OK_PTR(ctx->ssubranges, "ssubranges_calloc"))
+		return -EINVAL;
+
+	cnt = 0;
+	for (i = 0; i < ctx->subval_cnt; i++) {
+		for (j = i; j < ctx->subval_cnt; j++) {
+			ctx->usubranges[cnt] = range(U32, ctx->usubvals[i], ctx->usubvals[j]);
+			ctx->ssubranges[cnt] = range(S32, ctx->ssubvals[i], ctx->ssubvals[j]);
+			cnt++;
+		}
+	}
+
+	return 0;
+}
+
+static int parse_env_vars(struct ctx *ctx)
+{
+	const char *s;
+
+	if ((s = getenv("REG_BOUNDS_MAX_FAILURE_CNT"))) {
+		errno = 0;
+		ctx->max_failure_cnt = strtol(s, NULL, 10);
+		if (errno || ctx->max_failure_cnt < 0) {
+			ASSERT_OK(-errno, "REG_BOUNDS_MAX_FAILURE_CNT");
+			return -EINVAL;
+		}
+	}
+
+	if ((s = getenv("REG_BOUNDS_RAND_CASE_CNT"))) {
+		errno = 0;
+		ctx->rand_case_cnt = strtol(s, NULL, 10);
+		if (errno || ctx->rand_case_cnt < 0) {
+			ASSERT_OK(-errno, "REG_BOUNDS_RAND_CASE_CNT");
+			return -EINVAL;
+		}
+	}
+
+	if ((s = getenv("REG_BOUNDS_RAND_SEED"))) {
+		errno = 0;
+		ctx->rand_seed = strtoul(s, NULL, 10);
+		if (errno) {
+			ASSERT_OK(-errno, "REG_BOUNDS_RAND_SEED");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int prepare_gen_tests(struct ctx *ctx)
+{
+	const char *s;
+	int err;
+
+	if (!(s = getenv("SLOW_TESTS")) || strcmp(s, "1") != 0) {
+		test__skip();
+		return -ENOTSUP;
+	}
+
+	err = parse_env_vars(ctx);
+	if (err)
+		return err;
+
+	gen_vals(ctx);
+	err = gen_ranges(ctx);
+	if (err) {
+		ASSERT_OK(err, "gen_ranges");
+		return err;
+	}
+
+	return 0;
+}
+
+/* Go over generated constants and ranges and validate various supported
+ * combinations of them
+ */
+static void validate_gen_range_vs_const_64(enum num_t init_t, enum num_t cond_t)
+{
+	struct ctx ctx;
+	struct range rconst;
+	const struct range *ranges;
+	const u64 *vals;
+	int i, j;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	if (prepare_gen_tests(&ctx))
+		goto cleanup;
+
+	ranges = init_t == U64 ? ctx.uranges : ctx.sranges;
+	vals = init_t == U64 ? ctx.uvals : (const u64 *)ctx.svals;
+
+	ctx.total_case_cnt = (last_op - first_op + 1) * (2 * ctx.range_cnt * ctx.val_cnt);
+	ctx.start_ns = get_time_ns();
+	snprintf(ctx.progress_ctx, sizeof(ctx.progress_ctx),
+		 "RANGE x CONST, %s -> %s",
+		 t_str(init_t), t_str(cond_t));
+
+	for (i = 0; i < ctx.val_cnt; i++) {
+		for (j = 0; j < ctx.range_cnt; j++) {
+			rconst = range(init_t, vals[i], vals[i]);
+
+			/* (u64|s64)(<range> x <const>) */
+			if (verify_case(&ctx, init_t, cond_t, ranges[j], rconst))
+				goto cleanup;
+			/* (u64|s64)(<const> x <range>) */
+			if (verify_case(&ctx, init_t, cond_t, rconst, ranges[j]))
+				goto cleanup;
+		}
+	}
+
+cleanup:
+	cleanup_ctx(&ctx);
+}
+
+static void validate_gen_range_vs_const_32(enum num_t init_t, enum num_t cond_t)
+{
+	struct ctx ctx;
+	struct range rconst;
+	const struct range *ranges;
+	const u32 *vals;
+	int i, j;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	if (prepare_gen_tests(&ctx))
+		goto cleanup;
+
+	ranges = init_t == U32 ? ctx.usubranges : ctx.ssubranges;
+	vals = init_t == U32 ? ctx.usubvals : (const u32 *)ctx.ssubvals;
+
+	ctx.total_case_cnt = (last_op - first_op + 1) * (2 * ctx.subrange_cnt * ctx.subval_cnt);
+	ctx.start_ns = get_time_ns();
+	snprintf(ctx.progress_ctx, sizeof(ctx.progress_ctx),
+		 "RANGE x CONST, %s -> %s",
+		 t_str(init_t), t_str(cond_t));
+
+	for (i = 0; i < ctx.subval_cnt; i++) {
+		for (j = 0; j < ctx.subrange_cnt; j++) {
+			rconst = range(init_t, vals[i], vals[i]);
+
+			/* (u32|s32)(<range> x <const>) */
+			if (verify_case(&ctx, init_t, cond_t, ranges[j], rconst))
+				goto cleanup;
+			/* (u32|s32)(<const> x <range>) */
+			if (verify_case(&ctx, init_t, cond_t, rconst, ranges[j]))
+				goto cleanup;
+		}
+	}
+
+cleanup:
+	cleanup_ctx(&ctx);
+}
+
+static void validate_gen_range_vs_range(enum num_t init_t, enum num_t cond_t)
+{
+	struct ctx ctx;
+	const struct range *ranges;
+	int i, j, rcnt;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	if (prepare_gen_tests(&ctx))
+		goto cleanup;
+
+	switch (init_t)
+	{
+	case U64:
+		ranges = ctx.uranges;
+		rcnt = ctx.range_cnt;
+		break;
+	case U32:
+		ranges = ctx.usubranges;
+		rcnt = ctx.subrange_cnt;
+		break;
+	case S64:
+		ranges = ctx.sranges;
+		rcnt = ctx.range_cnt;
+		break;
+	case S32:
+		ranges = ctx.ssubranges;
+		rcnt = ctx.subrange_cnt;
+		break;
+	default:
+		printf("validate_gen_range_vs_range!\n");
+		exit(1);
+	}
+
+	ctx.total_case_cnt = (last_op - first_op + 1) * (2 * rcnt * (rcnt + 1) / 2);
+	ctx.start_ns = get_time_ns();
+	snprintf(ctx.progress_ctx, sizeof(ctx.progress_ctx),
+		 "RANGE x RANGE, %s -> %s",
+		 t_str(init_t), t_str(cond_t));
+
+	for (i = 0; i < rcnt; i++) {
+		for (j = i; j < rcnt; j++) {
+			/* (<range> x <range>) */
+			if (verify_case(&ctx, init_t, cond_t, ranges[i], ranges[j]))
+				goto cleanup;
+			if (verify_case(&ctx, init_t, cond_t, ranges[j], ranges[i]))
+				goto cleanup;
+		}
+	}
+
+cleanup:
+	cleanup_ctx(&ctx);
+}
+
+/* Go over thousands of test cases generated from initial seed values.
+ * Given this take a long time, guard this begind SLOW_TESTS=1 envvar. If
+ * envvar is not set, this test is skipped during test_progs testing.
+ *
+ * We split this up into smaller subsets based on initialization and
+ * conditional numeric domains to get an easy parallelization with test_progs'
+ * -j argument.
+ */
+
+/* RANGE x CONST, U64 initial range */
+void test_reg_bounds_gen_consts_u64_u64(void) { validate_gen_range_vs_const_64(U64, U64); }
+void test_reg_bounds_gen_consts_u64_s64(void) { validate_gen_range_vs_const_64(U64, S64); }
+void test_reg_bounds_gen_consts_u64_u32(void) { validate_gen_range_vs_const_64(U64, U32); }
+void test_reg_bounds_gen_consts_u64_s32(void) { validate_gen_range_vs_const_64(U64, S32); }
+/* RANGE x CONST, S64 initial range */
+void test_reg_bounds_gen_consts_s64_u64(void) { validate_gen_range_vs_const_64(S64, U64); }
+void test_reg_bounds_gen_consts_s64_s64(void) { validate_gen_range_vs_const_64(S64, S64); }
+void test_reg_bounds_gen_consts_s64_u32(void) { validate_gen_range_vs_const_64(S64, U32); }
+void test_reg_bounds_gen_consts_s64_s32(void) { validate_gen_range_vs_const_64(S64, S32); }
+/* RANGE x CONST, U32 initial range */
+void test_reg_bounds_gen_consts_u32_u64(void) { validate_gen_range_vs_const_32(U32, U64); }
+void test_reg_bounds_gen_consts_u32_s64(void) { validate_gen_range_vs_const_32(U32, S64); }
+void test_reg_bounds_gen_consts_u32_u32(void) { validate_gen_range_vs_const_32(U32, U32); }
+void test_reg_bounds_gen_consts_u32_s32(void) { validate_gen_range_vs_const_32(U32, S32); }
+/* RANGE x CONST, S32 initial range */
+void test_reg_bounds_gen_consts_s32_u64(void) { validate_gen_range_vs_const_32(S32, U64); }
+void test_reg_bounds_gen_consts_s32_s64(void) { validate_gen_range_vs_const_32(S32, S64); }
+void test_reg_bounds_gen_consts_s32_u32(void) { validate_gen_range_vs_const_32(S32, U32); }
+void test_reg_bounds_gen_consts_s32_s32(void) { validate_gen_range_vs_const_32(S32, S32); }
+
+/* RANGE x RANGE, U64 initial range */
+void test_reg_bounds_gen_ranges_u64_u64(void) { validate_gen_range_vs_range(U64, U64); }
+void test_reg_bounds_gen_ranges_u64_s64(void) { validate_gen_range_vs_range(U64, S64); }
+void test_reg_bounds_gen_ranges_u64_u32(void) { validate_gen_range_vs_range(U64, U32); }
+void test_reg_bounds_gen_ranges_u64_s32(void) { validate_gen_range_vs_range(U64, S32); }
+/* RANGE x RANGE, S64 initial range */
+void test_reg_bounds_gen_ranges_s64_u64(void) { validate_gen_range_vs_range(S64, U64); }
+void test_reg_bounds_gen_ranges_s64_s64(void) { validate_gen_range_vs_range(S64, S64); }
+void test_reg_bounds_gen_ranges_s64_u32(void) { validate_gen_range_vs_range(S64, U32); }
+void test_reg_bounds_gen_ranges_s64_s32(void) { validate_gen_range_vs_range(S64, S32); }
+/* RANGE x RANGE, U32 initial range */
+void test_reg_bounds_gen_ranges_u32_u64(void) { validate_gen_range_vs_range(U32, U64); }
+void test_reg_bounds_gen_ranges_u32_s64(void) { validate_gen_range_vs_range(U32, S64); }
+void test_reg_bounds_gen_ranges_u32_u32(void) { validate_gen_range_vs_range(U32, U32); }
+void test_reg_bounds_gen_ranges_u32_s32(void) { validate_gen_range_vs_range(U32, S32); }
+/* RANGE x RANGE, S32 initial range */
+void test_reg_bounds_gen_ranges_s32_u64(void) { validate_gen_range_vs_range(S32, U64); }
+void test_reg_bounds_gen_ranges_s32_s64(void) { validate_gen_range_vs_range(S32, S64); }
+void test_reg_bounds_gen_ranges_s32_u32(void) { validate_gen_range_vs_range(S32, U32); }
+void test_reg_bounds_gen_ranges_s32_s32(void) { validate_gen_range_vs_range(S32, S32); }
+
+#define DEFAULT_RAND_CASE_CNT 100
+
+#define RAND_21BIT_MASK ((1 << 22) - 1)
+
+static u64 rand_u64()
+{
+	/* RAND_MAX is guaranteed to be at least 1<<15, but in practice it
+	 * seems to be 1<<31, so we need to call it thrice to get full u64;
+	 * we'll use roughly equal split: 22 + 21 + 21 bits
+	 */
+	return ((u64)random() << 42) |
+	       (((u64)random() & RAND_21BIT_MASK) << 21) |
+	       (random() & RAND_21BIT_MASK);
+}
+
+static u64 rand_const(enum num_t t)
+{
+	return cast_t(t, rand_u64());
+}
+
+static struct range rand_range(enum num_t t)
+{
+	u64 x = rand_const(t), y = rand_const(t);
+
+	return range(t, min_t(t, x, y), max_t(t, x, y));
+}
+
+static void validate_rand_ranges(enum num_t init_t, enum num_t cond_t, bool const_range)
+{
+	struct ctx ctx;
+	struct range range1, range2;
+	int err, i;
+	u64 t;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	err = parse_env_vars(&ctx);
+	if (err) {
+		ASSERT_OK(err, "parse_env_vars");
+		return;
+	}
+
+	if (ctx.rand_case_cnt == 0)
+		ctx.rand_case_cnt = DEFAULT_RAND_CASE_CNT;
+	if (ctx.rand_seed == 0)
+		ctx.rand_seed = (unsigned)get_time_ns();
+
+	srandom(ctx.rand_seed);
+
+	ctx.total_case_cnt = (last_op - first_op + 1) * (2 * ctx.rand_case_cnt);
+	ctx.start_ns = get_time_ns();
+	snprintf(ctx.progress_ctx, sizeof(ctx.progress_ctx),
+		 "[RANDOM SEED %u] RANGE x %s, %s -> %s",
+		 ctx.rand_seed, const_range ? "CONST" : "RANGE",
+		 t_str(init_t), t_str(cond_t));
+
+	for (i = 0; i < ctx.rand_case_cnt; i++) {
+		range1 = rand_range(init_t);
+		if (const_range) {
+			t = rand_const(init_t);
+			range2 = range(init_t, t, t);
+		} else {
+			range2 = rand_range(init_t);
+		}
+
+		/* <range1> x <range2> */
+		if (verify_case_opt(&ctx, init_t, cond_t, range1, range2, false /* !is_subtest */))
+			goto cleanup;
+		/* <range2> x <range1> */
+		if (verify_case_opt(&ctx, init_t, cond_t, range2, range1, false /* !is_subtest */))
+			goto cleanup;
+	}
+
+cleanup:
+	/* make sure we report random seed for reproducing */
+	ASSERT_TRUE(true, ctx.progress_ctx);
+	cleanup_ctx(&ctx);
+}
+
+/* [RANDOM] RANGE x CONST, U64 initial range */
+void test_reg_bounds_rand_consts_u64_u64(void) { validate_rand_ranges(U64, U64, true /* const */); }
+void test_reg_bounds_rand_consts_u64_s64(void) { validate_rand_ranges(U64, S64, true /* const */); }
+void test_reg_bounds_rand_consts_u64_u32(void) { validate_rand_ranges(U64, U32, true /* const */); }
+void test_reg_bounds_rand_consts_u64_s32(void) { validate_rand_ranges(U64, S32, true /* const */); }
+/* [RANDOM] RANGE x CONST, S64 initial range */
+void test_reg_bounds_rand_consts_s64_u64(void) { validate_rand_ranges(S64, U64, true /* const */); }
+void test_reg_bounds_rand_consts_s64_s64(void) { validate_rand_ranges(S64, S64, true /* const */); }
+void test_reg_bounds_rand_consts_s64_u32(void) { validate_rand_ranges(S64, U32, true /* const */); }
+void test_reg_bounds_rand_consts_s64_s32(void) { validate_rand_ranges(S64, S32, true /* const */); }
+/* [RANDOM] RANGE x CONST, U32 initial range */
+void test_reg_bounds_rand_consts_u32_u64(void) { validate_rand_ranges(U32, U64, true /* const */); }
+void test_reg_bounds_rand_consts_u32_s64(void) { validate_rand_ranges(U32, S64, true /* const */); }
+void test_reg_bounds_rand_consts_u32_u32(void) { validate_rand_ranges(U32, U32, true /* const */); }
+void test_reg_bounds_rand_consts_u32_s32(void) { validate_rand_ranges(U32, S32, true /* const */); }
+/* [RANDOM] RANGE x CONST, S32 initial range */
+void test_reg_bounds_rand_consts_s32_u64(void) { validate_rand_ranges(S32, U64, true /* const */); }
+void test_reg_bounds_rand_consts_s32_s64(void) { validate_rand_ranges(S32, S64, true /* const */); }
+void test_reg_bounds_rand_consts_s32_u32(void) { validate_rand_ranges(S32, U32, true /* const */); }
+void test_reg_bounds_rand_consts_s32_s32(void) { validate_rand_ranges(S32, S32, true /* const */); }
+
+/* [RANDOM] RANGE x RANGE, U64 initial range */
+void test_reg_bounds_rand_ranges_u64_u64(void) { validate_rand_ranges(U64, U64, false /* range */); }
+void test_reg_bounds_rand_ranges_u64_s64(void) { validate_rand_ranges(U64, S64, false /* range */); }
+void test_reg_bounds_rand_ranges_u64_u32(void) { validate_rand_ranges(U64, U32, false /* range */); }
+void test_reg_bounds_rand_ranges_u64_s32(void) { validate_rand_ranges(U64, S32, false /* range */); }
+/* [RANDOM] RANGE x RANGE, S64 initial range */
+void test_reg_bounds_rand_ranges_s64_u64(void) { validate_rand_ranges(S64, U64, false /* range */); }
+void test_reg_bounds_rand_ranges_s64_s64(void) { validate_rand_ranges(S64, S64, false /* range */); }
+void test_reg_bounds_rand_ranges_s64_u32(void) { validate_rand_ranges(S64, U32, false /* range */); }
+void test_reg_bounds_rand_ranges_s64_s32(void) { validate_rand_ranges(S64, S32, false /* range */); }
+/* [RANDOM] RANGE x RANGE, U32 initial range */
+void test_reg_bounds_rand_ranges_u32_u64(void) { validate_rand_ranges(U32, U64, false /* range */); }
+void test_reg_bounds_rand_ranges_u32_s64(void) { validate_rand_ranges(U32, S64, false /* range */); }
+void test_reg_bounds_rand_ranges_u32_u32(void) { validate_rand_ranges(U32, U32, false /* range */); }
+void test_reg_bounds_rand_ranges_u32_s32(void) { validate_rand_ranges(U32, S32, false /* range */); }
+/* [RANDOM] RANGE x RANGE, S32 initial range */
+void test_reg_bounds_rand_ranges_s32_u64(void) { validate_rand_ranges(S32, U64, false /* range */); }
+void test_reg_bounds_rand_ranges_s32_s64(void) { validate_rand_ranges(S32, S64, false /* range */); }
+void test_reg_bounds_rand_ranges_s32_u32(void) { validate_rand_ranges(S32, U32, false /* range */); }
+void test_reg_bounds_rand_ranges_s32_s32(void) { validate_rand_ranges(S32, S32, false /* range */); }
+
+/* A set of hard-coded "interesting" cases to validate as part of normal
+ * test_progs test runs
+ */
+static struct subtest_case crafted_cases[] = {
+	{U64, U64, {0, 0xffffffff}, {0, 0}},
+	{U64, U64, {0, 0x80000000}, {0, 0}},
+	{U64, U64, {0x100000000ULL, 0x100000100ULL}, {0, 0}},
+	{U64, U64, {0x100000000ULL, 0x180000000ULL}, {0, 0}},
+	{U64, U64, {0x100000000ULL, 0x1ffffff00ULL}, {0, 0}},
+	{U64, U64, {0x100000000ULL, 0x1ffffff01ULL}, {0, 0}},
+	{U64, U64, {0x100000000ULL, 0x1fffffffeULL}, {0, 0}},
+	{U64, U64, {0x100000001ULL, 0x1000000ffULL}, {0, 0}},
+
+	/* single point overlap, interesting BPF_EQ and BPF_NE interactions */
+	{U64, U64, {0, 1}, {1, 0x80000000}},
+	{U64, S64, {0, 1}, {1, 0x80000000}},
+	{U64, U32, {0, 1}, {1, 0x80000000}},
+	{U64, S32, {0, 1}, {1, 0x80000000}},
+
+	{U64, S64, {0, 0xffffffff00000000ULL}, {0, 0}},
+	{U64, S64, {0x7fffffffffffffffULL, 0xffffffff00000000ULL}, {0, 0}},
+	{U64, S64, {0x7fffffff00000001ULL, 0xffffffff00000000ULL}, {0, 0}},
+	{U64, S64, {0, 0xffffffffULL}, {1, 1}},
+	{U64, S64, {0, 0xffffffffULL}, {0x7fffffff, 0x7fffffff}},
+
+	{U64, U32, {0, 0x100000000}, {0, 0}},
+	{U64, U32, {0xfffffffe, 0x100000000}, {0x80000000, 0x80000000}},
+
+	{U64, S32, {0, 0xffffffff00000000ULL}, {0, 0}},
+	/* these are tricky cases where lower 32 bits allow to tighten 64
+	 * bit boundaries based on tightened lower 32 bit boundaries
+	 */
+	{U64, S32, {0, 0x0ffffffffULL}, {0, 0}},
+	{U64, S32, {0, 0x100000000ULL}, {0, 0}},
+	{U64, S32, {0, 0x100000001ULL}, {0, 0}},
+	{U64, S32, {0, 0x180000000ULL}, {0, 0}},
+	{U64, S32, {0, 0x17fffffffULL}, {0, 0}},
+	{U64, S32, {0, 0x180000001ULL}, {0, 0}},
+
+	/* verifier knows about [-1, 0] range for s32 for this case already */
+	{S64, S64, {0xffffffffffffffffULL, 0}, {0xffffffff00000000ULL, 0xffffffff00000000ULL}},
+	/* but didn't know about these cases initially */
+	{U64, U64, {0xffffffff, 0x100000000ULL}, {0, 0}}, /* s32: [-1, 0] */
+	{U64, U64, {0xffffffff, 0x100000001ULL}, {0, 0}}, /* s32: [-1, 1] */
+
+	/* longer convergence case: learning from u64 -> s64 -> u64 -> u32,
+	 * arriving at u32: [1, U32_MAX] (instead of more pessimistic [0, U32_MAX])
+	 */
+	{S64, U64, {0xffffffff00000001ULL, 0}, {0xffffffff00000000ULL, 0xffffffff00000000ULL}},
+
+	{U32, U32, {1, U32_MAX}, {0, 0}},
+
+	{U32, S32, {0, U32_MAX}, {U32_MAX, U32_MAX}},
+
+	{S32, U64, {(u32)S32_MIN, (u32)S32_MIN}, {(u32)(s32)-255, 0}},
+	{S32, S64, {(u32)S32_MIN, (u32)(s32)-255}, {(u32)(s32)-2, 0}},
+	{S32, S64, {0, 1}, {(u32)S32_MIN, (u32)S32_MIN}},
+	{S32, U32, {(u32)S32_MIN, (u32)S32_MIN}, {(u32)S32_MIN, (u32)S32_MIN}},
+
+	/* edge overlap testings for BPF_NE */
+	{U64, U64, {0, U64_MAX}, {U64_MAX, U64_MAX}},
+	{U64, U64, {0, U64_MAX}, {0, 0}},
+	{S64, U64, {S64_MIN, 0}, {S64_MIN, S64_MIN}},
+	{S64, U64, {S64_MIN, 0}, {0, 0}},
+	{S64, U64, {S64_MIN, S64_MAX}, {S64_MAX, S64_MAX}},
+	{U32, U32, {0, U32_MAX}, {0, 0}},
+	{U32, U32, {0, U32_MAX}, {U32_MAX, U32_MAX}},
+	{S32, U32, {(u32)S32_MIN, 0}, {0, 0}},
+	{S32, U32, {(u32)S32_MIN, 0}, {(u32)S32_MIN, (u32)S32_MIN}},
+	{S32, U32, {(u32)S32_MIN, S32_MAX}, {S32_MAX, S32_MAX}},
+	{S64, U32, {0x0, 0x1f}, {0xffffffff80000000ULL, 0x000000007fffffffULL}},
+	{S64, U32, {0x0, 0x1f}, {0xffffffffffff8000ULL, 0x0000000000007fffULL}},
+	{S64, U32, {0x0, 0x1f}, {0xffffffffffffff80ULL, 0x000000000000007fULL}},
+};
+
+/* Go over crafted hard-coded cases. This is fast, so we do it as part of
+ * normal test_progs run.
+ */
+void test_reg_bounds_crafted(void)
+{
+	struct ctx ctx;
+	int i;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	for (i = 0; i < ARRAY_SIZE(crafted_cases); i++) {
+		struct subtest_case *c = &crafted_cases[i];
+
+		verify_case(&ctx, c->init_t, c->cond_t, c->x, c->y);
+		verify_case(&ctx, c->init_t, c->cond_t, c->y, c->x);
+	}
+
+	cleanup_ctx(&ctx);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c b/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c
new file mode 100644
index 000000000000..f0a8c828f8f1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/res_spin_lock.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024-2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <sys/sysinfo.h>
+
+#include "res_spin_lock.skel.h"
+#include "res_spin_lock_fail.skel.h"
+
+void test_res_spin_lock_failure(void)
+{
+	RUN_TESTS(res_spin_lock_fail);
+}
+
+static volatile int skip;
+
+static void *spin_lock_thread(void *arg)
+{
+	int err, prog_fd = *(u32 *) arg;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 10000,
+	);
+
+	while (!READ_ONCE(skip)) {
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		if (err || topts.retval) {
+			ASSERT_OK(err, "test_run");
+			ASSERT_OK(topts.retval, "test_run retval");
+			break;
+		}
+	}
+	pthread_exit(arg);
+}
+
+void test_res_spin_lock_success(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+	struct res_spin_lock *skel;
+	pthread_t thread_id[16];
+	int prog_fd, i, err;
+	void *ret;
+
+	if (get_nprocs() < 2) {
+		test__skip();
+		return;
+	}
+
+	skel = res_spin_lock__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "res_spin_lock__open_and_load"))
+		return;
+	/* AA deadlock */
+	prog_fd = bpf_program__fd(skel->progs.res_spin_lock_test);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "error");
+	ASSERT_OK(topts.retval, "retval");
+
+	prog_fd = bpf_program__fd(skel->progs.res_spin_lock_test_held_lock_max);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "error");
+	ASSERT_OK(topts.retval, "retval");
+
+	/* Multi-threaded ABBA deadlock. */
+
+	prog_fd = bpf_program__fd(skel->progs.res_spin_lock_test_AB);
+	for (i = 0; i < 16; i++) {
+		int err;
+
+		err = pthread_create(&thread_id[i], NULL, &spin_lock_thread, &prog_fd);
+		if (!ASSERT_OK(err, "pthread_create"))
+			goto end;
+	}
+
+	topts.retval = 0;
+	topts.repeat = 1000;
+	int fd = bpf_program__fd(skel->progs.res_spin_lock_test_BA);
+	while (!topts.retval && !err && !READ_ONCE(skel->bss->err)) {
+		err = bpf_prog_test_run_opts(fd, &topts);
+	}
+
+	WRITE_ONCE(skip, true);
+
+	for (i = 0; i < 16; i++) {
+		if (!ASSERT_OK(pthread_join(thread_id[i], &ret), "pthread_join"))
+			goto end;
+		if (!ASSERT_EQ(ret, &prog_fd, "ret == prog_fd"))
+			goto end;
+	}
+
+	ASSERT_EQ(READ_ONCE(skel->bss->err), -EDEADLK, "timeout err");
+	ASSERT_OK(err, "err");
+	ASSERT_EQ(topts.retval, -EDEADLK, "timeout");
+end:
+	res_spin_lock__destroy(skel);
+	return;
+}
+
+void serial_test_res_spin_lock_stress(void)
+{
+	if (libbpf_num_possible_cpus() < 3) {
+		test__skip();
+		return;
+	}
+
+	ASSERT_OK(load_module("bpf_test_rqspinlock.ko", false), "load module AA");
+	sleep(5);
+	unload_module("bpf_test_rqspinlock", false);
+	/*
+	 * Insert bpf_test_rqspinlock.ko manually with test_mode=[1|2] to test
+	 * other cases (ABBA, ABBCCA).
+	 */
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
new file mode 100644
index 000000000000..51544372f52e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/err.h>
+#include <string.h>
+#include <bpf/btf.h>
+#include <bpf/libbpf.h>
+#include <linux/btf.h>
+#include <linux/kernel.h>
+#define CONFIG_DEBUG_INFO_BTF
+#include <linux/btf_ids.h>
+#include "test_progs.h"
+
+static int duration;
+
+struct symbol {
+	const char	*name;
+	int		 type;
+	int		 id;
+};
+
+struct symbol test_symbols[] = {
+	{ "unused",  BTF_KIND_UNKN,     0 },
+	{ "S",       BTF_KIND_TYPEDEF, -1 },
+	{ "T",       BTF_KIND_TYPEDEF, -1 },
+	{ "U",       BTF_KIND_TYPEDEF, -1 },
+	{ "S",       BTF_KIND_STRUCT,  -1 },
+	{ "U",       BTF_KIND_UNION,   -1 },
+	{ "func",    BTF_KIND_FUNC,    -1 },
+};
+
+/* Align the .BTF_ids section to 4 bytes */
+asm (
+".pushsection " BTF_IDS_SECTION " ,\"a\"; \n"
+".balign 4, 0;                            \n"
+".popsection;                             \n");
+
+BTF_ID_LIST(test_list_local)
+BTF_ID_UNUSED
+BTF_ID(typedef, S)
+BTF_ID(typedef, T)
+BTF_ID(typedef, U)
+BTF_ID(struct,  S)
+BTF_ID(union,   U)
+BTF_ID(func,    func)
+
+extern __u32 test_list_global[];
+BTF_ID_LIST_GLOBAL(test_list_global, 1)
+BTF_ID_UNUSED
+BTF_ID(typedef, S)
+BTF_ID(typedef, T)
+BTF_ID(typedef, U)
+BTF_ID(struct,  S)
+BTF_ID(union,   U)
+BTF_ID(func,    func)
+
+BTF_SET_START(test_set)
+BTF_ID(typedef, S)
+BTF_ID(typedef, T)
+BTF_ID(typedef, U)
+BTF_ID(struct,  S)
+BTF_ID(union,   U)
+BTF_ID(func,    func)
+BTF_SET_END(test_set)
+
+static int
+__resolve_symbol(struct btf *btf, int type_id)
+{
+	const struct btf_type *type;
+	const char *str;
+	unsigned int i;
+
+	type = btf__type_by_id(btf, type_id);
+	if (!type) {
+		PRINT_FAIL("Failed to get type for ID %d\n", type_id);
+		return -1;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(test_symbols); i++) {
+		if (test_symbols[i].id >= 0)
+			continue;
+
+		if (BTF_INFO_KIND(type->info) != test_symbols[i].type)
+			continue;
+
+		str = btf__name_by_offset(btf, type->name_off);
+		if (!str) {
+			PRINT_FAIL("Failed to get name for BTF ID %d\n", type_id);
+			return -1;
+		}
+
+		if (!strcmp(str, test_symbols[i].name))
+			test_symbols[i].id = type_id;
+	}
+
+	return 0;
+}
+
+static int resolve_symbols(void)
+{
+	struct btf *btf;
+	int type_id;
+	__u32 nr;
+
+	btf = btf__parse_elf("btf_data.bpf.o", NULL);
+	if (CHECK(libbpf_get_error(btf), "resolve",
+		  "Failed to load BTF from btf_data.bpf.o\n"))
+		return -1;
+
+	nr = btf__type_cnt(btf);
+
+	for (type_id = 1; type_id < nr; type_id++) {
+		if (__resolve_symbol(btf, type_id))
+			break;
+	}
+
+	btf__free(btf);
+	return 0;
+}
+
+void test_resolve_btfids(void)
+{
+	__u32 *test_list, *test_lists[] = { test_list_local, test_list_global };
+	unsigned int i, j;
+	int ret = 0;
+
+	if (resolve_symbols())
+		return;
+
+	/* Check BTF_ID_LIST(test_list_local) and
+	 * BTF_ID_LIST_GLOBAL(test_list_global) IDs
+	 */
+	for (j = 0; j < ARRAY_SIZE(test_lists); j++) {
+		test_list = test_lists[j];
+		for (i = 0; i < ARRAY_SIZE(test_symbols); i++) {
+			ret = CHECK(test_list[i] != test_symbols[i].id,
+				    "id_check",
+				    "wrong ID for %s (%d != %d)\n",
+				    test_symbols[i].name,
+				    test_list[i], test_symbols[i].id);
+			if (ret)
+				return;
+		}
+	}
+
+	/* Check BTF_SET_START(test_set) IDs */
+	for (i = 0; i < test_set.cnt; i++) {
+		bool found = false;
+
+		for (j = 0; j < ARRAY_SIZE(test_symbols); j++) {
+			if (test_symbols[j].id != test_set.ids[i])
+				continue;
+			found = true;
+			break;
+		}
+
+		ret = CHECK(!found, "id_check",
+			    "ID %d not found in test_symbols\n",
+			    test_set.ids[i]);
+		if (ret)
+			break;
+
+		if (i > 0) {
+			if (!ASSERT_LE(test_set.ids[i - 1], test_set.ids[i], "sort_check"))
+				return;
+		}
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf.c b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
new file mode 100644
index 000000000000..64520684d2cb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf.c
@@ -0,0 +1,575 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <linux/compiler.h>
+#include <asm/barrier.h>
+#include <test_progs.h>
+#include <sys/mman.h>
+#include <sys/epoll.h>
+#include <time.h>
+#include <sched.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/sysinfo.h>
+#include <linux/perf_event.h>
+#include <linux/ring_buffer.h>
+
+#include "test_ringbuf.lskel.h"
+#include "test_ringbuf_n.lskel.h"
+#include "test_ringbuf_map_key.lskel.h"
+#include "test_ringbuf_write.lskel.h"
+#include "test_ringbuf_overwrite.lskel.h"
+
+#define EDONE 7777
+
+static int duration = 0;
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+static int sample_cnt;
+
+static void atomic_inc(int *cnt)
+{
+	__atomic_add_fetch(cnt, 1, __ATOMIC_SEQ_CST);
+}
+
+static int atomic_xchg(int *cnt, int val)
+{
+	return __atomic_exchange_n(cnt, val, __ATOMIC_SEQ_CST);
+}
+
+static int process_sample(void *ctx, void *data, size_t len)
+{
+	struct sample *s = data;
+
+	atomic_inc(&sample_cnt);
+
+	switch (s->seq) {
+	case 0:
+		CHECK(s->value != 333, "sample1_value", "exp %ld, got %ld\n",
+		      333L, s->value);
+		return 0;
+	case 1:
+		CHECK(s->value != 777, "sample2_value", "exp %ld, got %ld\n",
+		      777L, s->value);
+		return -EDONE;
+	default:
+		/* we don't care about the rest */
+		return 0;
+	}
+}
+
+static struct test_ringbuf_map_key_lskel *skel_map_key;
+static struct test_ringbuf_lskel *skel;
+static struct ring_buffer *ringbuf;
+
+static void trigger_samples()
+{
+	skel->bss->dropped = 0;
+	skel->bss->total = 0;
+	skel->bss->discarded = 0;
+
+	/* trigger exactly two samples */
+	skel->bss->value = 333;
+	syscall(__NR_getpgid);
+	skel->bss->value = 777;
+	syscall(__NR_getpgid);
+}
+
+static void *poll_thread(void *input)
+{
+	long timeout = (long)input;
+
+	return (void *)(long)ring_buffer__poll(ringbuf, timeout);
+}
+
+static void ringbuf_write_subtest(void)
+{
+	struct test_ringbuf_write_lskel *skel;
+	int page_size = getpagesize();
+	size_t *mmap_ptr;
+	int err, rb_fd;
+
+	skel = test_ringbuf_write_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->maps.ringbuf.max_entries = 0x40000;
+
+	err = test_ringbuf_write_lskel__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	rb_fd = skel->maps.ringbuf.map_fd;
+
+	mmap_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rb_fd, 0);
+	if (!ASSERT_OK_PTR(mmap_ptr, "rw_cons_pos"))
+		goto cleanup;
+	*mmap_ptr = 0x30000;
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_rw");
+
+	skel->bss->pid = getpid();
+
+	ringbuf = ring_buffer__new(rb_fd, process_sample, NULL, NULL);
+	if (!ASSERT_OK_PTR(ringbuf, "ringbuf_new"))
+		goto cleanup;
+
+	err = test_ringbuf_write_lskel__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup_ringbuf;
+
+	skel->bss->discarded = 0;
+	skel->bss->passed = 0;
+
+	/* trigger exactly two samples */
+	syscall(__NR_getpgid);
+	syscall(__NR_getpgid);
+
+	ASSERT_EQ(skel->bss->discarded, 2, "discarded");
+	ASSERT_EQ(skel->bss->passed, 0, "passed");
+
+	test_ringbuf_write_lskel__detach(skel);
+cleanup_ringbuf:
+	ring_buffer__free(ringbuf);
+cleanup:
+	test_ringbuf_write_lskel__destroy(skel);
+}
+
+static void ringbuf_subtest(void)
+{
+	const size_t rec_sz = BPF_RINGBUF_HDR_SZ + sizeof(struct sample);
+	pthread_t thread;
+	long bg_ret = -1;
+	int err, cnt, rb_fd;
+	int page_size = getpagesize();
+	void *mmap_ptr, *tmp_ptr;
+	struct ring *ring;
+	int map_fd;
+	unsigned long avail_data, ring_size, cons_pos, prod_pos;
+
+	skel = test_ringbuf_lskel__open();
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	skel->maps.ringbuf.max_entries = page_size;
+
+	err = test_ringbuf_lskel__load(skel);
+	if (CHECK(err != 0, "skel_load", "skeleton load failed\n"))
+		goto cleanup;
+
+	rb_fd = skel->maps.ringbuf.map_fd;
+	/* good read/write cons_pos */
+	mmap_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, rb_fd, 0);
+	ASSERT_OK_PTR(mmap_ptr, "rw_cons_pos");
+	tmp_ptr = mremap(mmap_ptr, page_size, 2 * page_size, MREMAP_MAYMOVE);
+	if (!ASSERT_ERR_PTR(tmp_ptr, "rw_extend"))
+		goto cleanup;
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_cons_pos_protect");
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_rw");
+
+	/* bad writeable prod_pos */
+	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, page_size);
+	err = -errno;
+	ASSERT_ERR_PTR(mmap_ptr, "wr_prod_pos");
+	ASSERT_EQ(err, -EPERM, "wr_prod_pos_err");
+
+	/* bad writeable data pages */
+	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, 2 * page_size);
+	err = -errno;
+	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_one");
+	ASSERT_EQ(err, -EPERM, "wr_data_page_one_err");
+	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, 3 * page_size);
+	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_two");
+	mmap_ptr = mmap(NULL, 2 * page_size, PROT_WRITE, MAP_SHARED, rb_fd, 2 * page_size);
+	ASSERT_ERR_PTR(mmap_ptr, "wr_data_page_all");
+
+	/* good read-only pages */
+	mmap_ptr = mmap(NULL, 4 * page_size, PROT_READ, MAP_SHARED, rb_fd, 0);
+	if (!ASSERT_OK_PTR(mmap_ptr, "ro_prod_pos"))
+		goto cleanup;
+
+	ASSERT_ERR(mprotect(mmap_ptr, 4 * page_size, PROT_WRITE), "write_protect");
+	ASSERT_ERR(mprotect(mmap_ptr, 4 * page_size, PROT_EXEC), "exec_protect");
+	ASSERT_ERR_PTR(mremap(mmap_ptr, 0, 4 * page_size, MREMAP_MAYMOVE), "ro_remap");
+	ASSERT_OK(munmap(mmap_ptr, 4 * page_size), "unmap_ro");
+
+	/* good read-only pages with initial offset */
+	mmap_ptr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, rb_fd, page_size);
+	if (!ASSERT_OK_PTR(mmap_ptr, "ro_prod_pos"))
+		goto cleanup;
+
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_WRITE), "write_protect");
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_protect");
+	ASSERT_ERR_PTR(mremap(mmap_ptr, 0, 3 * page_size, MREMAP_MAYMOVE), "ro_remap");
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_ro");
+
+	/* only trigger BPF program for current process */
+	skel->bss->pid = getpid();
+
+	ringbuf = ring_buffer__new(skel->maps.ringbuf.map_fd,
+				   process_sample, NULL, NULL);
+	if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n"))
+		goto cleanup;
+
+	err = test_ringbuf_lskel__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attachment failed: %d\n", err))
+		goto cleanup;
+
+	trigger_samples();
+
+	ring = ring_buffer__ring(ringbuf, 0);
+	if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0"))
+		goto cleanup;
+
+	map_fd = ring__map_fd(ring);
+	ASSERT_EQ(map_fd, skel->maps.ringbuf.map_fd, "ring_map_fd");
+
+	/* 2 submitted + 1 discarded records */
+	CHECK(skel->bss->avail_data != 3 * rec_sz,
+	      "err_avail_size", "exp %ld, got %ld\n",
+	      3L * rec_sz, skel->bss->avail_data);
+	CHECK(skel->bss->ring_size != page_size,
+	      "err_ring_size", "exp %ld, got %ld\n",
+	      (long)page_size, skel->bss->ring_size);
+	CHECK(skel->bss->cons_pos != 0,
+	      "err_cons_pos", "exp %ld, got %ld\n",
+	      0L, skel->bss->cons_pos);
+	CHECK(skel->bss->prod_pos != 3 * rec_sz,
+	      "err_prod_pos", "exp %ld, got %ld\n",
+	      3L * rec_sz, skel->bss->prod_pos);
+
+	/* verify getting this data directly via the ring object yields the same
+	 * results
+	 */
+	avail_data = ring__avail_data_size(ring);
+	ASSERT_EQ(avail_data, 3 * rec_sz, "ring_avail_size");
+	ring_size = ring__size(ring);
+	ASSERT_EQ(ring_size, page_size, "ring_ring_size");
+	cons_pos = ring__consumer_pos(ring);
+	ASSERT_EQ(cons_pos, 0, "ring_cons_pos");
+	prod_pos = ring__producer_pos(ring);
+	ASSERT_EQ(prod_pos, 3 * rec_sz, "ring_prod_pos");
+
+	/* poll for samples */
+	err = ring_buffer__poll(ringbuf, -1);
+
+	/* -EDONE is used as an indicator that we are done */
+	if (CHECK(err != -EDONE, "err_done", "done err: %d\n", err))
+		goto cleanup;
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 2, "cnt", "exp %d samples, got %d\n", 2, cnt);
+
+	/* we expect extra polling to return nothing */
+	err = ring_buffer__poll(ringbuf, 0);
+	if (CHECK(err != 0, "extra_samples", "poll result: %d\n", err))
+		goto cleanup;
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 0, "cnt", "exp %d samples, got %d\n", 0, cnt);
+
+	CHECK(skel->bss->dropped != 0, "err_dropped", "exp %ld, got %ld\n",
+	      0L, skel->bss->dropped);
+	CHECK(skel->bss->total != 2, "err_total", "exp %ld, got %ld\n",
+	      2L, skel->bss->total);
+	CHECK(skel->bss->discarded != 1, "err_discarded", "exp %ld, got %ld\n",
+	      1L, skel->bss->discarded);
+
+	/* now validate consumer position is updated and returned */
+	trigger_samples();
+	CHECK(skel->bss->cons_pos != 3 * rec_sz,
+	      "err_cons_pos", "exp %ld, got %ld\n",
+	      3L * rec_sz, skel->bss->cons_pos);
+	err = ring_buffer__poll(ringbuf, -1);
+	CHECK(err <= 0, "poll_err", "err %d\n", err);
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 2, "cnt", "exp %d samples, got %d\n", 2, cnt);
+
+	/* start poll in background w/ long timeout */
+	err = pthread_create(&thread, NULL, poll_thread, (void *)(long)10000);
+	if (CHECK(err, "bg_poll", "pthread_create failed: %d\n", err))
+		goto cleanup;
+
+	/* turn off notifications now */
+	skel->bss->flags = BPF_RB_NO_WAKEUP;
+
+	/* give background thread a bit of a time */
+	usleep(50000);
+	trigger_samples();
+	/* sleeping arbitrarily is bad, but no better way to know that
+	 * epoll_wait() **DID NOT** unblock in background thread
+	 */
+	usleep(50000);
+	/* background poll should still be blocked */
+	err = pthread_tryjoin_np(thread, (void **)&bg_ret);
+	if (CHECK(err != EBUSY, "try_join", "err %d\n", err))
+		goto cleanup;
+
+	/* BPF side did everything right */
+	CHECK(skel->bss->dropped != 0, "err_dropped", "exp %ld, got %ld\n",
+	      0L, skel->bss->dropped);
+	CHECK(skel->bss->total != 2, "err_total", "exp %ld, got %ld\n",
+	      2L, skel->bss->total);
+	CHECK(skel->bss->discarded != 1, "err_discarded", "exp %ld, got %ld\n",
+	      1L, skel->bss->discarded);
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 0, "cnt", "exp %d samples, got %d\n", 0, cnt);
+
+	/* clear flags to return to "adaptive" notification mode */
+	skel->bss->flags = 0;
+
+	/* produce new samples, no notification should be triggered, because
+	 * consumer is now behind
+	 */
+	trigger_samples();
+
+	/* background poll should still be blocked */
+	err = pthread_tryjoin_np(thread, (void **)&bg_ret);
+	if (CHECK(err != EBUSY, "try_join", "err %d\n", err))
+		goto cleanup;
+
+	/* still no samples, because consumer is behind */
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 0, "cnt", "exp %d samples, got %d\n", 0, cnt);
+
+	skel->bss->dropped = 0;
+	skel->bss->total = 0;
+	skel->bss->discarded = 0;
+
+	skel->bss->value = 333;
+	syscall(__NR_getpgid);
+	/* now force notifications */
+	skel->bss->flags = BPF_RB_FORCE_WAKEUP;
+	skel->bss->value = 777;
+	syscall(__NR_getpgid);
+
+	/* now we should get a pending notification */
+	usleep(50000);
+	err = pthread_tryjoin_np(thread, (void **)&bg_ret);
+	if (CHECK(err, "join_bg", "err %d\n", err))
+		goto cleanup;
+
+	if (CHECK(bg_ret <= 0, "bg_ret", "epoll_wait result: %ld", bg_ret))
+		goto cleanup;
+
+	/* due to timing variations, there could still be non-notified
+	 * samples, so consume them here to collect all the samples
+	 */
+	err = ring_buffer__consume(ringbuf);
+	CHECK(err < 0, "rb_consume", "failed: %d\b", err);
+
+	/* also consume using ring__consume to make sure it works the same */
+	err = ring__consume(ring);
+	ASSERT_GE(err, 0, "ring_consume");
+
+	/* 3 rounds, 2 samples each */
+	cnt = atomic_xchg(&sample_cnt, 0);
+	CHECK(cnt != 6, "cnt", "exp %d samples, got %d\n", 6, cnt);
+
+	/* BPF side did everything right */
+	CHECK(skel->bss->dropped != 0, "err_dropped", "exp %ld, got %ld\n",
+	      0L, skel->bss->dropped);
+	CHECK(skel->bss->total != 2, "err_total", "exp %ld, got %ld\n",
+	      2L, skel->bss->total);
+	CHECK(skel->bss->discarded != 1, "err_discarded", "exp %ld, got %ld\n",
+	      1L, skel->bss->discarded);
+
+	test_ringbuf_lskel__detach(skel);
+cleanup:
+	ring_buffer__free(ringbuf);
+	test_ringbuf_lskel__destroy(skel);
+}
+
+/*
+ * Test ring_buffer__consume_n() by producing N_TOT_SAMPLES samples in the ring
+ * buffer, via getpid(), and consuming them in chunks of N_SAMPLES.
+ */
+#define N_TOT_SAMPLES	32
+#define N_SAMPLES	4
+
+/* Sample value to verify the callback validity */
+#define SAMPLE_VALUE	42L
+
+static int process_n_sample(void *ctx, void *data, size_t len)
+{
+	struct sample *s = data;
+
+	ASSERT_EQ(s->value, SAMPLE_VALUE, "sample_value");
+
+	return 0;
+}
+
+static void ringbuf_n_subtest(void)
+{
+	struct test_ringbuf_n_lskel *skel_n;
+	int err, i;
+
+	skel_n = test_ringbuf_n_lskel__open();
+	if (!ASSERT_OK_PTR(skel_n, "test_ringbuf_n_lskel__open"))
+		return;
+
+	skel_n->maps.ringbuf.max_entries = getpagesize();
+	skel_n->bss->pid = getpid();
+
+	err = test_ringbuf_n_lskel__load(skel_n);
+	if (!ASSERT_OK(err, "test_ringbuf_n_lskel__load"))
+		goto cleanup;
+
+	ringbuf = ring_buffer__new(skel_n->maps.ringbuf.map_fd,
+				   process_n_sample, NULL, NULL);
+	if (!ASSERT_OK_PTR(ringbuf, "ring_buffer__new"))
+		goto cleanup;
+
+	err = test_ringbuf_n_lskel__attach(skel_n);
+	if (!ASSERT_OK(err, "test_ringbuf_n_lskel__attach"))
+		goto cleanup_ringbuf;
+
+	/* Produce N_TOT_SAMPLES samples in the ring buffer by calling getpid() */
+	skel_n->bss->value = SAMPLE_VALUE;
+	for (i = 0; i < N_TOT_SAMPLES; i++)
+		syscall(__NR_getpgid);
+
+	/* Consume all samples from the ring buffer in batches of N_SAMPLES */
+	for (i = 0; i < N_TOT_SAMPLES; i += err) {
+		err = ring_buffer__consume_n(ringbuf, N_SAMPLES);
+		if (!ASSERT_EQ(err, N_SAMPLES, "rb_consume"))
+			goto cleanup_ringbuf;
+	}
+
+cleanup_ringbuf:
+	ring_buffer__free(ringbuf);
+cleanup:
+	test_ringbuf_n_lskel__destroy(skel_n);
+}
+
+static int process_map_key_sample(void *ctx, void *data, size_t len)
+{
+	struct sample *s;
+	int err, val;
+
+	s = data;
+	switch (s->seq) {
+	case 1:
+		ASSERT_EQ(s->value, 42, "sample_value");
+		err = bpf_map_lookup_elem(skel_map_key->maps.hash_map.map_fd,
+					  s, &val);
+		ASSERT_OK(err, "hash_map bpf_map_lookup_elem");
+		ASSERT_EQ(val, 1, "hash_map val");
+		return -EDONE;
+	default:
+		return 0;
+	}
+}
+
+static void ringbuf_map_key_subtest(void)
+{
+	int err;
+
+	skel_map_key = test_ringbuf_map_key_lskel__open();
+	if (!ASSERT_OK_PTR(skel_map_key, "test_ringbuf_map_key_lskel__open"))
+		return;
+
+	skel_map_key->maps.ringbuf.max_entries = getpagesize();
+	skel_map_key->bss->pid = getpid();
+
+	err = test_ringbuf_map_key_lskel__load(skel_map_key);
+	if (!ASSERT_OK(err, "test_ringbuf_map_key_lskel__load"))
+		goto cleanup;
+
+	ringbuf = ring_buffer__new(skel_map_key->maps.ringbuf.map_fd,
+				   process_map_key_sample, NULL, NULL);
+	if (!ASSERT_OK_PTR(ringbuf, "ring_buffer__new"))
+		goto cleanup;
+
+	err = test_ringbuf_map_key_lskel__attach(skel_map_key);
+	if (!ASSERT_OK(err, "test_ringbuf_map_key_lskel__attach"))
+		goto cleanup_ringbuf;
+
+	syscall(__NR_getpgid);
+	ASSERT_EQ(skel_map_key->bss->seq, 1, "skel_map_key->bss->seq");
+	err = ring_buffer__poll(ringbuf, -1);
+	ASSERT_EQ(err, -EDONE, "ring_buffer__poll");
+
+cleanup_ringbuf:
+	ring_buffer__free(ringbuf);
+cleanup:
+	test_ringbuf_map_key_lskel__destroy(skel_map_key);
+}
+
+static void ringbuf_overwrite_mode_subtest(void)
+{
+	unsigned long size, len1, len2, len3, len4, len5;
+	unsigned long expect_avail_data, expect_prod_pos, expect_over_pos;
+	struct test_ringbuf_overwrite_lskel *skel;
+	int page_size = getpagesize();
+	int err;
+
+	skel = test_ringbuf_overwrite_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	size = page_size;
+	len1 = page_size / 2;
+	len2 = page_size / 4;
+	len3 = size - len1 - len2 - BPF_RINGBUF_HDR_SZ * 3;
+	len4 = len3 - 8;
+	len5 = len3; /* retry with len3 */
+
+	skel->maps.ringbuf.max_entries = size;
+	skel->rodata->LEN1 = len1;
+	skel->rodata->LEN2 = len2;
+	skel->rodata->LEN3 = len3;
+	skel->rodata->LEN4 = len4;
+	skel->rodata->LEN5 = len5;
+
+	skel->bss->pid = getpid();
+
+	err = test_ringbuf_overwrite_lskel__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = test_ringbuf_overwrite_lskel__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	syscall(__NR_getpgid);
+
+	ASSERT_EQ(skel->bss->reserve1_fail, 0, "reserve 1");
+	ASSERT_EQ(skel->bss->reserve2_fail, 0, "reserve 2");
+	ASSERT_EQ(skel->bss->reserve3_fail, 1, "reserve 3");
+	ASSERT_EQ(skel->bss->reserve4_fail, 0, "reserve 4");
+	ASSERT_EQ(skel->bss->reserve5_fail, 0, "reserve 5");
+
+	ASSERT_EQ(skel->bss->ring_size, size, "check_ring_size");
+
+	expect_avail_data = len2 + len4 + len5 + 3 * BPF_RINGBUF_HDR_SZ;
+	ASSERT_EQ(skel->bss->avail_data, expect_avail_data, "check_avail_size");
+
+	ASSERT_EQ(skel->bss->cons_pos, 0, "check_cons_pos");
+
+	expect_prod_pos = len1 + len2 + len4 + len5 + 4 * BPF_RINGBUF_HDR_SZ;
+	ASSERT_EQ(skel->bss->prod_pos, expect_prod_pos, "check_prod_pos");
+
+	expect_over_pos = len1 + BPF_RINGBUF_HDR_SZ;
+	ASSERT_EQ(skel->bss->over_pos, expect_over_pos, "check_over_pos");
+
+	test_ringbuf_overwrite_lskel__detach(skel);
+cleanup:
+	test_ringbuf_overwrite_lskel__destroy(skel);
+}
+
+void test_ringbuf(void)
+{
+	if (test__start_subtest("ringbuf"))
+		ringbuf_subtest();
+	if (test__start_subtest("ringbuf_n"))
+		ringbuf_n_subtest();
+	if (test__start_subtest("ringbuf_map_key"))
+		ringbuf_map_key_subtest();
+	if (test__start_subtest("ringbuf_write"))
+		ringbuf_write_subtest();
+	if (test__start_subtest("ringbuf_overwrite_mode"))
+		ringbuf_overwrite_mode_subtest();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
new file mode 100644
index 000000000000..58522195081b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <sys/epoll.h>
+#include "test_ringbuf_multi.skel.h"
+
+static int duration = 0;
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+static int process_sample(void *ctx, void *data, size_t len)
+{
+	int ring = (unsigned long)ctx;
+	struct sample *s = data;
+
+	switch (s->seq) {
+	case 0:
+		CHECK(ring != 1, "sample1_ring", "exp %d, got %d\n", 1, ring);
+		CHECK(s->value != 333, "sample1_value", "exp %ld, got %ld\n",
+		      333L, s->value);
+		break;
+	case 1:
+		CHECK(ring != 2, "sample2_ring", "exp %d, got %d\n", 2, ring);
+		CHECK(s->value != 777, "sample2_value", "exp %ld, got %ld\n",
+		      777L, s->value);
+		break;
+	default:
+		CHECK(true, "extra_sample", "unexpected sample seq %d, val %ld\n",
+		      s->seq, s->value);
+		return -1;
+	}
+
+	return 0;
+}
+
+void test_ringbuf_multi(void)
+{
+	struct test_ringbuf_multi *skel;
+	struct ring_buffer *ringbuf = NULL;
+	struct ring *ring_old;
+	struct ring *ring;
+	int err;
+	int page_size = getpagesize();
+	int proto_fd = -1;
+
+	skel = test_ringbuf_multi__open();
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	/* validate ringbuf size adjustment logic */
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_before");
+	ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size + 1), "rb1_resize");
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), 2 * page_size, "rb1_size_after");
+	ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size), "rb1_reset");
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_final");
+
+	proto_fd = bpf_map_create(BPF_MAP_TYPE_RINGBUF, NULL, 0, 0, page_size, NULL);
+	if (CHECK(proto_fd < 0, "bpf_map_create", "bpf_map_create failed\n"))
+		goto cleanup;
+
+	err = bpf_map__set_inner_map_fd(skel->maps.ringbuf_hash, proto_fd);
+	if (CHECK(err != 0, "bpf_map__set_inner_map_fd", "bpf_map__set_inner_map_fd failed\n"))
+		goto cleanup;
+
+	err = test_ringbuf_multi__load(skel);
+	if (CHECK(err != 0, "skel_load", "skeleton load failed\n"))
+		goto cleanup;
+
+	close(proto_fd);
+	proto_fd = -1;
+
+	/* make sure we can't resize ringbuf after object load */
+	if (!ASSERT_ERR(bpf_map__set_max_entries(skel->maps.ringbuf1, 3 * page_size), "rb1_resize_after_load"))
+		goto cleanup;
+
+	/* only trigger BPF program for current process */
+	skel->bss->pid = getpid();
+
+	ringbuf = ring_buffer__new(bpf_map__fd(skel->maps.ringbuf1),
+				   process_sample, (void *)(long)1, NULL);
+	if (CHECK(!ringbuf, "ringbuf_create", "failed to create ringbuf\n"))
+		goto cleanup;
+
+	/* verify ring_buffer__ring returns expected results */
+	ring = ring_buffer__ring(ringbuf, 0);
+	if (!ASSERT_OK_PTR(ring, "ring_buffer__ring_idx_0"))
+		goto cleanup;
+	ring_old = ring;
+	ring = ring_buffer__ring(ringbuf, 1);
+	ASSERT_ERR_PTR(ring, "ring_buffer__ring_idx_1");
+
+	err = ring_buffer__add(ringbuf, bpf_map__fd(skel->maps.ringbuf2),
+			      process_sample, (void *)(long)2);
+	if (CHECK(err, "ringbuf_add", "failed to add another ring\n"))
+		goto cleanup;
+
+	/* verify adding a new ring didn't invalidate our older pointer */
+	ring = ring_buffer__ring(ringbuf, 0);
+	if (!ASSERT_EQ(ring, ring_old, "ring_buffer__ring_again"))
+		goto cleanup;
+
+	err = test_ringbuf_multi__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attachment failed: %d\n", err))
+		goto cleanup;
+
+	/* trigger few samples, some will be skipped */
+	skel->bss->target_ring = 0;
+	skel->bss->value = 333;
+	syscall(__NR_getpgid);
+
+	/* skipped, no ringbuf in slot 1 */
+	skel->bss->target_ring = 1;
+	skel->bss->value = 555;
+	syscall(__NR_getpgid);
+
+	skel->bss->target_ring = 2;
+	skel->bss->value = 777;
+	syscall(__NR_getpgid);
+
+	/* poll for samples, should get 2 ringbufs back */
+	err = ring_buffer__poll(ringbuf, -1);
+	if (CHECK(err != 2, "poll_res", "expected 2 records, got %d\n", err))
+		goto cleanup;
+
+	/* expect extra polling to return nothing */
+	err = ring_buffer__poll(ringbuf, 0);
+	if (CHECK(err < 0, "extra_samples", "poll result: %d\n", err))
+		goto cleanup;
+
+	CHECK(skel->bss->dropped != 0, "err_dropped", "exp %ld, got %ld\n",
+	      0L, skel->bss->dropped);
+	CHECK(skel->bss->skipped != 1, "err_skipped", "exp %ld, got %ld\n",
+	      1L, skel->bss->skipped);
+	CHECK(skel->bss->total != 2, "err_total", "exp %ld, got %ld\n",
+	      2L, skel->bss->total);
+
+cleanup:
+	if (proto_fd >= 0)
+		close(proto_fd);
+	ring_buffer__free(ringbuf);
+	test_ringbuf_multi__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/section_names.c b/tools/testing/selftests/bpf/prog_tests/section_names.c
new file mode 100644
index 000000000000..c3d78846f31a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/section_names.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+#include <test_progs.h>
+
+static int duration = 0;
+
+struct sec_name_test {
+	const char sec_name[32];
+	struct {
+		int rc;
+		enum bpf_prog_type prog_type;
+		enum bpf_attach_type expected_attach_type;
+	} expected_load;
+	struct {
+		int rc;
+		enum bpf_attach_type attach_type;
+	} expected_attach;
+};
+
+static struct sec_name_test tests[] = {
+	{"InvAliD", {-ESRCH, 0, 0}, {-EINVAL, 0} },
+	{"cgroup", {-ESRCH, 0, 0}, {-EINVAL, 0} },
+	{"socket", {0, BPF_PROG_TYPE_SOCKET_FILTER, 0}, {-EINVAL, 0} },
+	{"kprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
+	{"uprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
+	{"kretprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
+	{"uretprobe/", {0, BPF_PROG_TYPE_KPROBE, 0}, {-EINVAL, 0} },
+	{"classifier", {0, BPF_PROG_TYPE_SCHED_CLS, 0}, {-EINVAL, 0} },
+	{"action", {0, BPF_PROG_TYPE_SCHED_ACT, 0}, {-EINVAL, 0} },
+	{"tracepoint/", {0, BPF_PROG_TYPE_TRACEPOINT, 0}, {-EINVAL, 0} },
+	{"tp/", {0, BPF_PROG_TYPE_TRACEPOINT, 0}, {-EINVAL, 0} },
+	{
+		"raw_tracepoint/",
+		{0, BPF_PROG_TYPE_RAW_TRACEPOINT, 0},
+		{-EINVAL, 0},
+	},
+	{"raw_tp/", {0, BPF_PROG_TYPE_RAW_TRACEPOINT, 0}, {-EINVAL, 0} },
+	{"xdp", {0, BPF_PROG_TYPE_XDP, BPF_XDP}, {0, BPF_XDP} },
+	{"perf_event", {0, BPF_PROG_TYPE_PERF_EVENT, 0}, {-EINVAL, 0} },
+	{"lwt_in", {0, BPF_PROG_TYPE_LWT_IN, 0}, {-EINVAL, 0} },
+	{"lwt_out", {0, BPF_PROG_TYPE_LWT_OUT, 0}, {-EINVAL, 0} },
+	{"lwt_xmit", {0, BPF_PROG_TYPE_LWT_XMIT, 0}, {-EINVAL, 0} },
+	{"lwt_seg6local", {0, BPF_PROG_TYPE_LWT_SEG6LOCAL, 0}, {-EINVAL, 0} },
+	{
+		"cgroup_skb/ingress",
+		{0, BPF_PROG_TYPE_CGROUP_SKB, BPF_CGROUP_INET_INGRESS},
+		{0, BPF_CGROUP_INET_INGRESS},
+	},
+	{
+		"cgroup_skb/egress",
+		{0, BPF_PROG_TYPE_CGROUP_SKB, BPF_CGROUP_INET_EGRESS},
+		{0, BPF_CGROUP_INET_EGRESS},
+	},
+	{"cgroup/skb", {0, BPF_PROG_TYPE_CGROUP_SKB, 0}, {-EINVAL, 0} },
+	{
+		"cgroup/sock",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET_SOCK_CREATE},
+		{0, BPF_CGROUP_INET_SOCK_CREATE},
+	},
+	{
+		"cgroup/post_bind4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET4_POST_BIND},
+		{0, BPF_CGROUP_INET4_POST_BIND},
+	},
+	{
+		"cgroup/post_bind6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET6_POST_BIND},
+		{0, BPF_CGROUP_INET6_POST_BIND},
+	},
+	{
+		"cgroup/dev",
+		{0, BPF_PROG_TYPE_CGROUP_DEVICE, BPF_CGROUP_DEVICE},
+		{0, BPF_CGROUP_DEVICE},
+	},
+	{
+		"sockops",
+		{0, BPF_PROG_TYPE_SOCK_OPS, BPF_CGROUP_SOCK_OPS},
+		{0, BPF_CGROUP_SOCK_OPS},
+	},
+	{
+		"sk_skb/stream_parser",
+		{0, BPF_PROG_TYPE_SK_SKB, BPF_SK_SKB_STREAM_PARSER},
+		{0, BPF_SK_SKB_STREAM_PARSER},
+	},
+	{
+		"sk_skb/stream_verdict",
+		{0, BPF_PROG_TYPE_SK_SKB, BPF_SK_SKB_STREAM_VERDICT},
+		{0, BPF_SK_SKB_STREAM_VERDICT},
+	},
+	{"sk_skb", {0, BPF_PROG_TYPE_SK_SKB, 0}, {-EINVAL, 0} },
+	{
+		"sk_msg",
+		{0, BPF_PROG_TYPE_SK_MSG, BPF_SK_MSG_VERDICT},
+		{0, BPF_SK_MSG_VERDICT},
+	},
+	{
+		"lirc_mode2",
+		{0, BPF_PROG_TYPE_LIRC_MODE2, BPF_LIRC_MODE2},
+		{0, BPF_LIRC_MODE2},
+	},
+	{
+		"flow_dissector",
+		{0, BPF_PROG_TYPE_FLOW_DISSECTOR, BPF_FLOW_DISSECTOR},
+		{0, BPF_FLOW_DISSECTOR},
+	},
+	{
+		"cgroup/bind4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_BIND},
+		{0, BPF_CGROUP_INET4_BIND},
+	},
+	{
+		"cgroup/bind6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_BIND},
+		{0, BPF_CGROUP_INET6_BIND},
+	},
+	{
+		"cgroup/connect4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_CONNECT},
+		{0, BPF_CGROUP_INET4_CONNECT},
+	},
+	{
+		"cgroup/connect6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_CONNECT},
+		{0, BPF_CGROUP_INET6_CONNECT},
+	},
+	{
+		"cgroup/connect_unix",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_CONNECT},
+		{0, BPF_CGROUP_UNIX_CONNECT},
+	},
+	{
+		"cgroup/sendmsg4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_SENDMSG},
+		{0, BPF_CGROUP_UDP4_SENDMSG},
+	},
+	{
+		"cgroup/sendmsg6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP6_SENDMSG},
+		{0, BPF_CGROUP_UDP6_SENDMSG},
+	},
+	{
+		"cgroup/sendmsg_unix",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_SENDMSG},
+		{0, BPF_CGROUP_UNIX_SENDMSG},
+	},
+	{
+		"cgroup/recvmsg4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP4_RECVMSG},
+		{0, BPF_CGROUP_UDP4_RECVMSG},
+	},
+	{
+		"cgroup/recvmsg6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UDP6_RECVMSG},
+		{0, BPF_CGROUP_UDP6_RECVMSG},
+	},
+	{
+		"cgroup/recvmsg_unix",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_RECVMSG},
+		{0, BPF_CGROUP_UNIX_RECVMSG},
+	},
+	{
+		"cgroup/sysctl",
+		{0, BPF_PROG_TYPE_CGROUP_SYSCTL, BPF_CGROUP_SYSCTL},
+		{0, BPF_CGROUP_SYSCTL},
+	},
+	{
+		"cgroup/getsockopt",
+		{0, BPF_PROG_TYPE_CGROUP_SOCKOPT, BPF_CGROUP_GETSOCKOPT},
+		{0, BPF_CGROUP_GETSOCKOPT},
+	},
+	{
+		"cgroup/setsockopt",
+		{0, BPF_PROG_TYPE_CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT},
+		{0, BPF_CGROUP_SETSOCKOPT},
+	},
+	{
+		"cgroup/getpeername4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETPEERNAME},
+		{0, BPF_CGROUP_INET4_GETPEERNAME},
+	},
+	{
+		"cgroup/getpeername6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETPEERNAME},
+		{0, BPF_CGROUP_INET6_GETPEERNAME},
+	},
+	{
+		"cgroup/getpeername_unix",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETPEERNAME},
+		{0, BPF_CGROUP_UNIX_GETPEERNAME},
+	},
+	{
+		"cgroup/getsockname4",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_GETSOCKNAME},
+		{0, BPF_CGROUP_INET4_GETSOCKNAME},
+	},
+	{
+		"cgroup/getsockname6",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET6_GETSOCKNAME},
+		{0, BPF_CGROUP_INET6_GETSOCKNAME},
+	},
+	{
+		"cgroup/getsockname_unix",
+		{0, BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_UNIX_GETSOCKNAME},
+		{0, BPF_CGROUP_UNIX_GETSOCKNAME},
+	},
+};
+
+static void test_prog_type_by_name(const struct sec_name_test *test)
+{
+	enum bpf_attach_type expected_attach_type;
+	enum bpf_prog_type prog_type;
+	int rc;
+
+	rc = libbpf_prog_type_by_name(test->sec_name, &prog_type,
+				      &expected_attach_type);
+
+	CHECK(rc != test->expected_load.rc, "check_code",
+	      "prog: unexpected rc=%d for %s\n", rc, test->sec_name);
+
+	if (rc)
+		return;
+
+	CHECK(prog_type != test->expected_load.prog_type, "check_prog_type",
+	      "prog: unexpected prog_type=%d for %s\n",
+	      prog_type, test->sec_name);
+
+	CHECK(expected_attach_type != test->expected_load.expected_attach_type,
+	      "check_attach_type", "prog: unexpected expected_attach_type=%d for %s\n",
+	      expected_attach_type, test->sec_name);
+}
+
+static void test_attach_type_by_name(const struct sec_name_test *test)
+{
+	enum bpf_attach_type attach_type;
+	int rc;
+
+	rc = libbpf_attach_type_by_name(test->sec_name, &attach_type);
+
+	CHECK(rc != test->expected_attach.rc, "check_ret",
+	      "attach: unexpected rc=%d for %s\n", rc, test->sec_name);
+
+	if (rc)
+		return;
+
+	CHECK(attach_type != test->expected_attach.attach_type,
+	      "check_attach_type", "attach: unexpected attach_type=%d for %s\n",
+	      attach_type, test->sec_name);
+}
+
+void test_section_names(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tests); ++i) {
+		struct sec_name_test *test = &tests[i];
+
+		test_prog_type_by_name(test);
+		test_attach_type_by_name(test);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
new file mode 100644
index 000000000000..3dbcc091f16c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
@@ -0,0 +1,860 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Facebook */
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <linux/bpf.h>
+#include <linux/err.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+#include <sys/types.h>
+#include <sys/epoll.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include "bpf_util.h"
+
+#include "test_progs.h"
+#include "test_select_reuseport_common.h"
+
+#define MAX_TEST_NAME 80
+#define MIN_TCPHDR_LEN 20
+#define UDPHDR_LEN 8
+
+#define TCP_SYNCOOKIE_SYSCTL "/proc/sys/net/ipv4/tcp_syncookies"
+#define TCP_FO_SYSCTL "/proc/sys/net/ipv4/tcp_fastopen"
+#define REUSEPORT_ARRAY_SIZE 32
+
+static int result_map, tmp_index_ovr_map, linum_map, data_check_map;
+static __u32 expected_results[NR_RESULTS];
+static int sk_fds[REUSEPORT_ARRAY_SIZE];
+static int reuseport_array = -1, outer_map = -1;
+static enum bpf_map_type inner_map_type;
+static int select_by_skb_data_prog;
+static struct bpf_object *obj;
+static __u32 index_zero;
+static int epfd;
+
+static struct sockaddr_storage srv_sa;
+
+#define RET_IF(condition, tag, format...) ({				\
+	if (CHECK_FAIL(condition)) {					\
+		printf(tag " " format);					\
+		return;							\
+	}								\
+})
+
+#define RET_ERR(condition, tag, format...) ({				\
+	if (CHECK_FAIL(condition)) {					\
+		printf(tag " " format);					\
+		return -1;						\
+	}								\
+})
+
+static int create_maps(enum bpf_map_type inner_type)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+
+	inner_map_type = inner_type;
+
+	/* Creating reuseport_array */
+	reuseport_array = bpf_map_create(inner_type, "reuseport_array",
+					 sizeof(__u32), sizeof(__u32), REUSEPORT_ARRAY_SIZE, NULL);
+	RET_ERR(reuseport_array < 0, "creating reuseport_array",
+		"reuseport_array:%d errno:%d\n", reuseport_array, errno);
+
+	/* Creating outer_map */
+	opts.inner_map_fd = reuseport_array;
+	outer_map = bpf_map_create(BPF_MAP_TYPE_ARRAY_OF_MAPS, "outer_map",
+				   sizeof(__u32), sizeof(__u32), 1, &opts);
+	RET_ERR(outer_map < 0, "creating outer_map",
+		"outer_map:%d errno:%d\n", outer_map, errno);
+
+	return 0;
+}
+
+static int prepare_bpf_obj(void)
+{
+	struct bpf_program *prog;
+	struct bpf_map *map;
+	int err;
+
+	obj = bpf_object__open("test_select_reuseport_kern.bpf.o");
+	err = libbpf_get_error(obj);
+	RET_ERR(err, "open test_select_reuseport_kern.bpf.o",
+		"obj:%p PTR_ERR(obj):%d\n", obj, err);
+
+	map = bpf_object__find_map_by_name(obj, "outer_map");
+	RET_ERR(!map, "find outer_map", "!map\n");
+	err = bpf_map__reuse_fd(map, outer_map);
+	RET_ERR(err, "reuse outer_map", "err:%d\n", err);
+
+	err = bpf_object__load(obj);
+	RET_ERR(err, "load bpf_object", "err:%d\n", err);
+
+	prog = bpf_object__next_program(obj, NULL);
+	RET_ERR(!prog, "get first bpf_program", "!prog\n");
+	select_by_skb_data_prog = bpf_program__fd(prog);
+	RET_ERR(select_by_skb_data_prog < 0, "get prog fd",
+		"select_by_skb_data_prog:%d\n", select_by_skb_data_prog);
+
+	map = bpf_object__find_map_by_name(obj, "result_map");
+	RET_ERR(!map, "find result_map", "!map\n");
+	result_map = bpf_map__fd(map);
+	RET_ERR(result_map < 0, "get result_map fd",
+		"result_map:%d\n", result_map);
+
+	map = bpf_object__find_map_by_name(obj, "tmp_index_ovr_map");
+	RET_ERR(!map, "find tmp_index_ovr_map\n", "!map");
+	tmp_index_ovr_map = bpf_map__fd(map);
+	RET_ERR(tmp_index_ovr_map < 0, "get tmp_index_ovr_map fd",
+		"tmp_index_ovr_map:%d\n", tmp_index_ovr_map);
+
+	map = bpf_object__find_map_by_name(obj, "linum_map");
+	RET_ERR(!map, "find linum_map", "!map\n");
+	linum_map = bpf_map__fd(map);
+	RET_ERR(linum_map < 0, "get linum_map fd",
+		"linum_map:%d\n", linum_map);
+
+	map = bpf_object__find_map_by_name(obj, "data_check_map");
+	RET_ERR(!map, "find data_check_map", "!map\n");
+	data_check_map = bpf_map__fd(map);
+	RET_ERR(data_check_map < 0, "get data_check_map fd",
+		"data_check_map:%d\n", data_check_map);
+
+	return 0;
+}
+
+static void ss_init_loopback(struct sockaddr_storage *sa, sa_family_t family)
+{
+	memset(sa, 0, sizeof(*sa));
+	sa->ss_family = family;
+	if (sa->ss_family == AF_INET6)
+		((struct sockaddr_in6 *)sa)->sin6_addr = in6addr_loopback;
+	else
+		((struct sockaddr_in *)sa)->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+}
+
+static void ss_init_inany(struct sockaddr_storage *sa, sa_family_t family)
+{
+	memset(sa, 0, sizeof(*sa));
+	sa->ss_family = family;
+	if (sa->ss_family == AF_INET6)
+		((struct sockaddr_in6 *)sa)->sin6_addr = in6addr_any;
+	else
+		((struct sockaddr_in *)sa)->sin_addr.s_addr = INADDR_ANY;
+}
+
+static int read_int_sysctl(const char *sysctl)
+{
+	char buf[16];
+	int fd, ret;
+
+	fd = open(sysctl, 0);
+	RET_ERR(fd == -1, "open(sysctl)",
+		"sysctl:%s fd:%d errno:%d\n", sysctl, fd, errno);
+
+	ret = read(fd, buf, sizeof(buf));
+	RET_ERR(ret <= 0, "read(sysctl)",
+		"sysctl:%s ret:%d errno:%d\n", sysctl, ret, errno);
+
+	close(fd);
+	return atoi(buf);
+}
+
+static int write_int_sysctl(const char *sysctl, int v)
+{
+	int fd, ret, size;
+	char buf[16];
+
+	fd = open(sysctl, O_RDWR);
+	RET_ERR(fd == -1, "open(sysctl)",
+		"sysctl:%s fd:%d errno:%d\n", sysctl, fd, errno);
+
+	size = snprintf(buf, sizeof(buf), "%d", v);
+	ret = write(fd, buf, size);
+	RET_ERR(ret != size, "write(sysctl)",
+		"sysctl:%s ret:%d size:%d errno:%d\n",
+		sysctl, ret, size, errno);
+
+	close(fd);
+	return 0;
+}
+
+static int enable_fastopen(void)
+{
+	int fo;
+
+	fo = read_int_sysctl(TCP_FO_SYSCTL);
+	if (fo < 0)
+		return -1;
+
+	return write_int_sysctl(TCP_FO_SYSCTL, fo | 7);
+}
+
+static int enable_syncookie(void)
+{
+	return write_int_sysctl(TCP_SYNCOOKIE_SYSCTL, 2);
+}
+
+static int disable_syncookie(void)
+{
+	return write_int_sysctl(TCP_SYNCOOKIE_SYSCTL, 0);
+}
+
+static long get_linum(void)
+{
+	__u32 linum;
+	int err;
+
+	err = bpf_map_lookup_elem(linum_map, &index_zero, &linum);
+	RET_ERR(err < 0, "lookup_elem(linum_map)", "err:%d errno:%d\n",
+		err, errno);
+
+	return linum;
+}
+
+static void check_data(int type, sa_family_t family, const struct cmd *cmd,
+		       int cli_fd)
+{
+	struct data_check expected = {}, result;
+	struct sockaddr_storage cli_sa;
+	socklen_t addrlen;
+	int err;
+
+	addrlen = sizeof(cli_sa);
+	err = getsockname(cli_fd, (struct sockaddr *)&cli_sa,
+			  &addrlen);
+	RET_IF(err < 0, "getsockname(cli_fd)", "err:%d errno:%d\n",
+	       err, errno);
+
+	err = bpf_map_lookup_elem(data_check_map, &index_zero, &result);
+	RET_IF(err < 0, "lookup_elem(data_check_map)", "err:%d errno:%d\n",
+	       err, errno);
+
+	if (type == SOCK_STREAM) {
+		expected.len = MIN_TCPHDR_LEN;
+		expected.ip_protocol = IPPROTO_TCP;
+	} else {
+		expected.len = UDPHDR_LEN;
+		expected.ip_protocol = IPPROTO_UDP;
+	}
+
+	if (family == AF_INET6) {
+		struct sockaddr_in6 *srv_v6 = (struct sockaddr_in6 *)&srv_sa;
+		struct sockaddr_in6 *cli_v6 = (struct sockaddr_in6 *)&cli_sa;
+
+		expected.eth_protocol = htons(ETH_P_IPV6);
+		expected.bind_inany = !srv_v6->sin6_addr.s6_addr32[3] &&
+			!srv_v6->sin6_addr.s6_addr32[2] &&
+			!srv_v6->sin6_addr.s6_addr32[1] &&
+			!srv_v6->sin6_addr.s6_addr32[0];
+
+		memcpy(&expected.skb_addrs[0], cli_v6->sin6_addr.s6_addr32,
+		       sizeof(cli_v6->sin6_addr));
+		memcpy(&expected.skb_addrs[4], &in6addr_loopback,
+		       sizeof(in6addr_loopback));
+		expected.skb_ports[0] = cli_v6->sin6_port;
+		expected.skb_ports[1] = srv_v6->sin6_port;
+	} else {
+		struct sockaddr_in *srv_v4 = (struct sockaddr_in *)&srv_sa;
+		struct sockaddr_in *cli_v4 = (struct sockaddr_in *)&cli_sa;
+
+		expected.eth_protocol = htons(ETH_P_IP);
+		expected.bind_inany = !srv_v4->sin_addr.s_addr;
+
+		expected.skb_addrs[0] = cli_v4->sin_addr.s_addr;
+		expected.skb_addrs[1] = htonl(INADDR_LOOPBACK);
+		expected.skb_ports[0] = cli_v4->sin_port;
+		expected.skb_ports[1] = srv_v4->sin_port;
+	}
+
+	if (memcmp(&result, &expected, offsetof(struct data_check,
+						equal_check_end))) {
+		printf("unexpected data_check\n");
+		printf("  result: (0x%x, %u, %u)\n",
+		       result.eth_protocol, result.ip_protocol,
+		       result.bind_inany);
+		printf("expected: (0x%x, %u, %u)\n",
+		       expected.eth_protocol, expected.ip_protocol,
+		       expected.bind_inany);
+		RET_IF(1, "data_check result != expected",
+		       "bpf_prog_linum:%ld\n", get_linum());
+	}
+
+	RET_IF(!result.hash, "data_check result.hash empty",
+	       "result.hash:%u", result.hash);
+
+	expected.len += cmd ? sizeof(*cmd) : 0;
+	if (type == SOCK_STREAM)
+		RET_IF(expected.len > result.len, "expected.len > result.len",
+		       "expected.len:%u result.len:%u bpf_prog_linum:%ld\n",
+		       expected.len, result.len, get_linum());
+	else
+		RET_IF(expected.len != result.len, "expected.len != result.len",
+		       "expected.len:%u result.len:%u bpf_prog_linum:%ld\n",
+		       expected.len, result.len, get_linum());
+}
+
+static const char *result_to_str(enum result res)
+{
+	switch (res) {
+	case DROP_ERR_INNER_MAP:
+		return "DROP_ERR_INNER_MAP";
+	case DROP_ERR_SKB_DATA:
+		return "DROP_ERR_SKB_DATA";
+	case DROP_ERR_SK_SELECT_REUSEPORT:
+		return "DROP_ERR_SK_SELECT_REUSEPORT";
+	case DROP_MISC:
+		return "DROP_MISC";
+	case PASS:
+		return "PASS";
+	case PASS_ERR_SK_SELECT_REUSEPORT:
+		return "PASS_ERR_SK_SELECT_REUSEPORT";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static void check_results(void)
+{
+	__u32 results[NR_RESULTS];
+	__u32 i, broken = 0;
+	int err;
+
+	for (i = 0; i < NR_RESULTS; i++) {
+		err = bpf_map_lookup_elem(result_map, &i, &results[i]);
+		RET_IF(err < 0, "lookup_elem(result_map)",
+		       "i:%u err:%d errno:%d\n", i, err, errno);
+	}
+
+	for (i = 0; i < NR_RESULTS; i++) {
+		if (results[i] != expected_results[i]) {
+			broken = i;
+			break;
+		}
+	}
+
+	if (i == NR_RESULTS)
+		return;
+
+	printf("unexpected result\n");
+	printf(" result: [");
+	printf("%u", results[0]);
+	for (i = 1; i < NR_RESULTS; i++)
+		printf(", %u", results[i]);
+	printf("]\n");
+
+	printf("expected: [");
+	printf("%u", expected_results[0]);
+	for (i = 1; i < NR_RESULTS; i++)
+		printf(", %u", expected_results[i]);
+	printf("]\n");
+
+	printf("mismatch on %s (bpf_prog_linum:%ld)\n", result_to_str(broken),
+	       get_linum());
+
+	CHECK_FAIL(true);
+}
+
+static int send_data(int type, sa_family_t family, void *data, size_t len,
+		     enum result expected)
+{
+	struct sockaddr_storage cli_sa;
+	int fd, err;
+
+	fd = socket(family, type, 0);
+	RET_ERR(fd == -1, "socket()", "fd:%d errno:%d\n", fd, errno);
+
+	ss_init_loopback(&cli_sa, family);
+	err = bind(fd, (struct sockaddr *)&cli_sa, sizeof(cli_sa));
+	RET_ERR(fd == -1, "bind(cli_sa)", "err:%d errno:%d\n", err, errno);
+	err = sendto(fd, data, len, MSG_FASTOPEN, (struct sockaddr *)&srv_sa,
+		     sizeof(srv_sa));
+	RET_ERR(err != len && expected >= PASS,
+		"sendto()", "family:%u err:%d errno:%d expected:%d\n",
+		family, err, errno, expected);
+
+	return fd;
+}
+
+static void do_test(int type, sa_family_t family, struct cmd *cmd,
+		    enum result expected)
+{
+	int nev, srv_fd, cli_fd;
+	struct epoll_event ev;
+	struct cmd rcv_cmd;
+	ssize_t nread;
+
+	cli_fd = send_data(type, family, cmd, cmd ? sizeof(*cmd) : 0,
+			   expected);
+	if (cli_fd < 0)
+		return;
+	nev = epoll_wait(epfd, &ev, 1, expected >= PASS ? 5 : 0);
+	RET_IF((nev <= 0 && expected >= PASS) ||
+	       (nev > 0 && expected < PASS),
+	       "nev <> expected",
+	       "nev:%d expected:%d type:%d family:%d data:(%d, %d)\n",
+	       nev, expected, type, family,
+	       cmd ? cmd->reuseport_index : -1,
+	       cmd ? cmd->pass_on_failure : -1);
+	check_results();
+	check_data(type, family, cmd, cli_fd);
+
+	if (expected < PASS)
+		return;
+
+	RET_IF(expected != PASS_ERR_SK_SELECT_REUSEPORT &&
+	       cmd->reuseport_index != ev.data.u32,
+	       "check cmd->reuseport_index",
+	       "cmd:(%u, %u) ev.data.u32:%u\n",
+	       cmd->pass_on_failure, cmd->reuseport_index, ev.data.u32);
+
+	srv_fd = sk_fds[ev.data.u32];
+	if (type == SOCK_STREAM) {
+		int new_fd = accept(srv_fd, NULL, 0);
+
+		RET_IF(new_fd == -1, "accept(srv_fd)",
+		       "ev.data.u32:%u new_fd:%d errno:%d\n",
+		       ev.data.u32, new_fd, errno);
+
+		nread = recv(new_fd, &rcv_cmd, sizeof(rcv_cmd), MSG_DONTWAIT);
+		RET_IF(nread != sizeof(rcv_cmd),
+		       "recv(new_fd)",
+		       "ev.data.u32:%u nread:%zd sizeof(rcv_cmd):%zu errno:%d\n",
+		       ev.data.u32, nread, sizeof(rcv_cmd), errno);
+
+		close(new_fd);
+	} else {
+		nread = recv(srv_fd, &rcv_cmd, sizeof(rcv_cmd), MSG_DONTWAIT);
+		RET_IF(nread != sizeof(rcv_cmd),
+		       "recv(sk_fds)",
+		       "ev.data.u32:%u nread:%zd sizeof(rcv_cmd):%zu errno:%d\n",
+		       ev.data.u32, nread, sizeof(rcv_cmd), errno);
+	}
+
+	close(cli_fd);
+}
+
+static void test_err_inner_map(int type, sa_family_t family)
+{
+	struct cmd cmd = {
+		.reuseport_index = 0,
+		.pass_on_failure = 0,
+	};
+
+	expected_results[DROP_ERR_INNER_MAP]++;
+	do_test(type, family, &cmd, DROP_ERR_INNER_MAP);
+}
+
+static void test_err_skb_data(int type, sa_family_t family)
+{
+	expected_results[DROP_ERR_SKB_DATA]++;
+	do_test(type, family, NULL, DROP_ERR_SKB_DATA);
+}
+
+static void test_err_sk_select_port(int type, sa_family_t family)
+{
+	struct cmd cmd = {
+		.reuseport_index = REUSEPORT_ARRAY_SIZE,
+		.pass_on_failure = 0,
+	};
+
+	expected_results[DROP_ERR_SK_SELECT_REUSEPORT]++;
+	do_test(type, family, &cmd, DROP_ERR_SK_SELECT_REUSEPORT);
+}
+
+static void test_pass(int type, sa_family_t family)
+{
+	struct cmd cmd;
+	int i;
+
+	cmd.pass_on_failure = 0;
+	for (i = 0; i < REUSEPORT_ARRAY_SIZE; i++) {
+		expected_results[PASS]++;
+		cmd.reuseport_index = i;
+		do_test(type, family, &cmd, PASS);
+	}
+}
+
+static void test_syncookie(int type, sa_family_t family)
+{
+	int err, tmp_index = 1;
+	struct cmd cmd = {
+		.reuseport_index = 0,
+		.pass_on_failure = 0,
+	};
+
+	/*
+	 * +1 for TCP-SYN and
+	 * +1 for the TCP-ACK (ack the syncookie)
+	 */
+	expected_results[PASS] += 2;
+	enable_syncookie();
+	/*
+	 * Simulate TCP-SYN and TCP-ACK are handled by two different sk:
+	 * TCP-SYN: select sk_fds[tmp_index = 1] tmp_index is from the
+	 *          tmp_index_ovr_map
+	 * TCP-ACK: select sk_fds[reuseport_index = 0] reuseport_index
+	 *          is from the cmd.reuseport_index
+	 */
+	err = bpf_map_update_elem(tmp_index_ovr_map, &index_zero,
+				  &tmp_index, BPF_ANY);
+	RET_IF(err < 0, "update_elem(tmp_index_ovr_map, 0, 1)",
+	       "err:%d errno:%d\n", err, errno);
+	do_test(type, family, &cmd, PASS);
+	err = bpf_map_lookup_elem(tmp_index_ovr_map, &index_zero,
+				  &tmp_index);
+	RET_IF(err < 0 || tmp_index >= 0,
+	       "lookup_elem(tmp_index_ovr_map)",
+	       "err:%d errno:%d tmp_index:%d\n",
+	       err, errno, tmp_index);
+	disable_syncookie();
+}
+
+static void test_pass_on_err(int type, sa_family_t family)
+{
+	struct cmd cmd = {
+		.reuseport_index = REUSEPORT_ARRAY_SIZE,
+		.pass_on_failure = 1,
+	};
+
+	expected_results[PASS_ERR_SK_SELECT_REUSEPORT] += 1;
+	do_test(type, family, &cmd, PASS_ERR_SK_SELECT_REUSEPORT);
+}
+
+static void test_detach_bpf(int type, sa_family_t family)
+{
+#ifdef SO_DETACH_REUSEPORT_BPF
+	__u32 nr_run_before = 0, nr_run_after = 0, tmp, i;
+	struct epoll_event ev;
+	int cli_fd, err, nev;
+	struct cmd cmd = {};
+	int optvalue = 0;
+
+	err = setsockopt(sk_fds[0], SOL_SOCKET, SO_DETACH_REUSEPORT_BPF,
+			 &optvalue, sizeof(optvalue));
+	RET_IF(err == -1, "setsockopt(SO_DETACH_REUSEPORT_BPF)",
+	       "err:%d errno:%d\n", err, errno);
+
+	err = setsockopt(sk_fds[1], SOL_SOCKET, SO_DETACH_REUSEPORT_BPF,
+			 &optvalue, sizeof(optvalue));
+	RET_IF(err == 0 || errno != ENOENT,
+	       "setsockopt(SO_DETACH_REUSEPORT_BPF)",
+	       "err:%d errno:%d\n", err, errno);
+
+	for (i = 0; i < NR_RESULTS; i++) {
+		err = bpf_map_lookup_elem(result_map, &i, &tmp);
+		RET_IF(err < 0, "lookup_elem(result_map)",
+		       "i:%u err:%d errno:%d\n", i, err, errno);
+		nr_run_before += tmp;
+	}
+
+	cli_fd = send_data(type, family, &cmd, sizeof(cmd), PASS);
+	if (cli_fd < 0)
+		return;
+	nev = epoll_wait(epfd, &ev, 1, 5);
+	RET_IF(nev <= 0, "nev <= 0",
+	       "nev:%d expected:1 type:%d family:%d data:(0, 0)\n",
+	       nev,  type, family);
+
+	for (i = 0; i < NR_RESULTS; i++) {
+		err = bpf_map_lookup_elem(result_map, &i, &tmp);
+		RET_IF(err < 0, "lookup_elem(result_map)",
+		       "i:%u err:%d errno:%d\n", i, err, errno);
+		nr_run_after += tmp;
+	}
+
+	RET_IF(nr_run_before != nr_run_after,
+	       "nr_run_before != nr_run_after",
+	       "nr_run_before:%u nr_run_after:%u\n",
+	       nr_run_before, nr_run_after);
+
+	close(cli_fd);
+#else
+	test__skip();
+#endif
+}
+
+static void prepare_sk_fds(int type, sa_family_t family, bool inany)
+{
+	const int first = REUSEPORT_ARRAY_SIZE - 1;
+	int i, err, optval = 1;
+	struct epoll_event ev;
+	socklen_t addrlen;
+
+	if (inany)
+		ss_init_inany(&srv_sa, family);
+	else
+		ss_init_loopback(&srv_sa, family);
+	addrlen = sizeof(srv_sa);
+
+	/*
+	 * The sk_fds[] is filled from the back such that the order
+	 * is exactly opposite to the (struct sock_reuseport *)reuse->socks[].
+	 */
+	for (i = first; i >= 0; i--) {
+		sk_fds[i] = socket(family, type, 0);
+		RET_IF(sk_fds[i] == -1, "socket()", "sk_fds[%d]:%d errno:%d\n",
+		       i, sk_fds[i], errno);
+		err = setsockopt(sk_fds[i], SOL_SOCKET, SO_REUSEPORT,
+				 &optval, sizeof(optval));
+		RET_IF(err == -1, "setsockopt(SO_REUSEPORT)",
+		       "sk_fds[%d] err:%d errno:%d\n",
+		       i, err, errno);
+
+		if (i == first) {
+			err = setsockopt(sk_fds[i], SOL_SOCKET,
+					 SO_ATTACH_REUSEPORT_EBPF,
+					 &select_by_skb_data_prog,
+					 sizeof(select_by_skb_data_prog));
+			RET_IF(err < 0, "setsockopt(SO_ATTACH_REUEPORT_EBPF)",
+			       "err:%d errno:%d\n", err, errno);
+		}
+
+		err = bind(sk_fds[i], (struct sockaddr *)&srv_sa, addrlen);
+		RET_IF(err < 0, "bind()", "sk_fds[%d] err:%d errno:%d\n",
+		       i, err, errno);
+
+		if (type == SOCK_STREAM) {
+			err = listen(sk_fds[i], 10);
+			RET_IF(err < 0, "listen()",
+			       "sk_fds[%d] err:%d errno:%d\n",
+			       i, err, errno);
+		}
+
+		err = bpf_map_update_elem(reuseport_array, &i, &sk_fds[i],
+					  BPF_NOEXIST);
+		RET_IF(err < 0, "update_elem(reuseport_array)",
+		       "sk_fds[%d] err:%d errno:%d\n", i, err, errno);
+
+		if (i == first) {
+			socklen_t addrlen = sizeof(srv_sa);
+
+			err = getsockname(sk_fds[i], (struct sockaddr *)&srv_sa,
+					  &addrlen);
+			RET_IF(err == -1, "getsockname()",
+			       "sk_fds[%d] err:%d errno:%d\n", i, err, errno);
+		}
+	}
+
+	epfd = epoll_create(1);
+	RET_IF(epfd == -1, "epoll_create(1)",
+	       "epfd:%d errno:%d\n", epfd, errno);
+
+	ev.events = EPOLLIN;
+	for (i = 0; i < REUSEPORT_ARRAY_SIZE; i++) {
+		ev.data.u32 = i;
+		err = epoll_ctl(epfd, EPOLL_CTL_ADD, sk_fds[i], &ev);
+		RET_IF(err, "epoll_ctl(EPOLL_CTL_ADD)", "sk_fds[%d]\n", i);
+	}
+}
+
+static void setup_per_test(int type, sa_family_t family, bool inany,
+			   bool no_inner_map)
+{
+	int ovr = -1, err;
+
+	prepare_sk_fds(type, family, inany);
+	err = bpf_map_update_elem(tmp_index_ovr_map, &index_zero, &ovr,
+				  BPF_ANY);
+	RET_IF(err < 0, "update_elem(tmp_index_ovr_map, 0, -1)",
+	       "err:%d errno:%d\n", err, errno);
+
+	/* Install reuseport_array to outer_map? */
+	if (no_inner_map)
+		return;
+
+	err = bpf_map_update_elem(outer_map, &index_zero, &reuseport_array,
+				  BPF_ANY);
+	RET_IF(err < 0, "update_elem(outer_map, 0, reuseport_array)",
+	       "err:%d errno:%d\n", err, errno);
+}
+
+static void cleanup_per_test(bool no_inner_map)
+{
+	int i, err, zero = 0;
+
+	memset(expected_results, 0, sizeof(expected_results));
+
+	for (i = 0; i < NR_RESULTS; i++) {
+		err = bpf_map_update_elem(result_map, &i, &zero, BPF_ANY);
+		RET_IF(err, "reset elem in result_map",
+		       "i:%u err:%d errno:%d\n", i, err, errno);
+	}
+
+	err = bpf_map_update_elem(linum_map, &zero, &zero, BPF_ANY);
+	RET_IF(err, "reset line number in linum_map", "err:%d errno:%d\n",
+	       err, errno);
+
+	for (i = 0; i < REUSEPORT_ARRAY_SIZE; i++)
+		close(sk_fds[i]);
+	close(epfd);
+
+	/* Delete reuseport_array from outer_map? */
+	if (no_inner_map)
+		return;
+
+	err = bpf_map_delete_elem(outer_map, &index_zero);
+	RET_IF(err < 0, "delete_elem(outer_map)",
+	       "err:%d errno:%d\n", err, errno);
+}
+
+static void cleanup(void)
+{
+	if (outer_map >= 0) {
+		close(outer_map);
+		outer_map = -1;
+	}
+
+	if (reuseport_array >= 0) {
+		close(reuseport_array);
+		reuseport_array = -1;
+	}
+
+	if (obj) {
+		bpf_object__close(obj);
+		obj = NULL;
+	}
+
+	memset(expected_results, 0, sizeof(expected_results));
+}
+
+static const char *maptype_str(enum bpf_map_type type)
+{
+	switch (type) {
+	case BPF_MAP_TYPE_REUSEPORT_SOCKARRAY:
+		return "reuseport_sockarray";
+	case BPF_MAP_TYPE_SOCKMAP:
+		return "sockmap";
+	case BPF_MAP_TYPE_SOCKHASH:
+		return "sockhash";
+	default:
+		return "unknown";
+	}
+}
+
+static const char *family_str(sa_family_t family)
+{
+	switch (family) {
+	case AF_INET:
+		return "IPv4";
+	case AF_INET6:
+		return "IPv6";
+	default:
+		return "unknown";
+	}
+}
+
+static const char *sotype_str(int sotype)
+{
+	switch (sotype) {
+	case SOCK_STREAM:
+		return "TCP";
+	case SOCK_DGRAM:
+		return "UDP";
+	default:
+		return "unknown";
+	}
+}
+
+#define TEST_INIT(fn_, ...) { .fn = fn_, .name = #fn_, __VA_ARGS__ }
+
+static void test_config(int sotype, sa_family_t family, bool inany)
+{
+	const struct test {
+		void (*fn)(int sotype, sa_family_t family);
+		const char *name;
+		bool no_inner_map;
+		int need_sotype;
+	} tests[] = {
+		TEST_INIT(test_err_inner_map,
+			  .no_inner_map = true),
+		TEST_INIT(test_err_skb_data),
+		TEST_INIT(test_err_sk_select_port),
+		TEST_INIT(test_pass),
+		TEST_INIT(test_syncookie,
+			  .need_sotype = SOCK_STREAM),
+		TEST_INIT(test_pass_on_err),
+		TEST_INIT(test_detach_bpf),
+	};
+	struct netns_obj *netns;
+	char s[MAX_TEST_NAME];
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		if (t->need_sotype && t->need_sotype != sotype)
+			continue; /* test not compatible with socket type */
+
+		snprintf(s, sizeof(s), "%s %s/%s %s %s",
+			 maptype_str(inner_map_type),
+			 family_str(family), sotype_str(sotype),
+			 inany ? "INANY" : "LOOPBACK", t->name);
+
+		if (!test__start_subtest(s))
+			continue;
+
+		netns = netns_new("select_reuseport", true);
+		if (!ASSERT_OK_PTR(netns, "netns_new"))
+			continue;
+
+		if (CHECK_FAIL(enable_fastopen()))
+			goto out;
+		if (CHECK_FAIL(disable_syncookie()))
+			goto out;
+
+		setup_per_test(sotype, family, inany, t->no_inner_map);
+		t->fn(sotype, family);
+		cleanup_per_test(t->no_inner_map);
+
+out:
+		netns_free(netns);
+	}
+}
+
+#define BIND_INANY true
+
+static void test_all(void)
+{
+	const struct config {
+		int sotype;
+		sa_family_t family;
+		bool inany;
+	} configs[] = {
+		{ SOCK_STREAM, AF_INET },
+		{ SOCK_STREAM, AF_INET, BIND_INANY },
+		{ SOCK_STREAM, AF_INET6 },
+		{ SOCK_STREAM, AF_INET6, BIND_INANY },
+		{ SOCK_DGRAM, AF_INET },
+		{ SOCK_DGRAM, AF_INET6 },
+	};
+	const struct config *c;
+
+	for (c = configs; c < configs + ARRAY_SIZE(configs); c++)
+		test_config(c->sotype, c->family, c->inany);
+}
+
+void test_map_type(enum bpf_map_type mt)
+{
+	if (create_maps(mt))
+		goto out;
+	if (prepare_bpf_obj())
+		goto out;
+
+	test_all();
+out:
+	cleanup();
+}
+
+void serial_test_select_reuseport(void)
+{
+	test_map_type(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	test_map_type(BPF_MAP_TYPE_SOCKMAP);
+	test_map_type(BPF_MAP_TYPE_SOCKHASH);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
new file mode 100644
index 000000000000..7ac4d5a488aa
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include "test_send_signal_kern.skel.h"
+#include "io_helpers.h"
+
+static int sigusr1_received;
+
+static void sigusr1_handler(int signum)
+{
+	sigusr1_received = 8;
+}
+
+static void sigusr1_siginfo_handler(int s, siginfo_t *i, void *v)
+{
+	sigusr1_received = (int)(long long)i->si_value.sival_ptr;
+}
+
+static void test_send_signal_common(struct perf_event_attr *attr,
+				    bool signal_thread, bool remote)
+{
+	struct test_send_signal_kern *skel;
+	struct sigaction sa;
+	int pipe_c2p[2], pipe_p2c[2];
+	int err = -1, pmu_fd = -1;
+	volatile int j = 0;
+	int retry_count;
+	char buf[256];
+	pid_t pid;
+	int old_prio;
+
+	if (!ASSERT_OK(pipe(pipe_c2p), "pipe_c2p"))
+		return;
+
+	if (!ASSERT_OK(pipe(pipe_p2c), "pipe_p2c")) {
+		close(pipe_c2p[0]);
+		close(pipe_c2p[1]);
+		return;
+	}
+
+	pid = fork();
+	if (!ASSERT_GE(pid, 0, "fork")) {
+		close(pipe_c2p[0]);
+		close(pipe_c2p[1]);
+		close(pipe_p2c[0]);
+		close(pipe_p2c[1]);
+		return;
+	}
+
+	if (pid == 0) {
+		/* install signal handler and notify parent */
+		if (remote) {
+			sa.sa_sigaction = sigusr1_siginfo_handler;
+			sa.sa_flags = SA_RESTART | SA_SIGINFO;
+			ASSERT_NEQ(sigaction(SIGUSR1, &sa, NULL), -1, "sigaction");
+		} else {
+			ASSERT_NEQ(signal(SIGUSR1, sigusr1_handler), SIG_ERR, "signal");
+		}
+
+		close(pipe_c2p[0]); /* close read */
+		close(pipe_p2c[1]); /* close write */
+
+		/* boost with a high priority so we got a higher chance
+		 * that if an interrupt happens, the underlying task
+		 * is this process.
+		 */
+		if (!remote) {
+			errno = 0;
+			old_prio = getpriority(PRIO_PROCESS, 0);
+			ASSERT_OK(errno, "getpriority");
+			ASSERT_OK(setpriority(PRIO_PROCESS, 0, -20), "setpriority");
+		}
+
+		/* notify parent signal handler is installed */
+		ASSERT_EQ(write(pipe_c2p[1], buf, 1), 1, "pipe_write");
+
+		/* make sure parent enabled bpf program to send_signal */
+		ASSERT_EQ(read(pipe_p2c[0], buf, 1), 1, "pipe_read");
+
+		/* wait a little for signal handler */
+		for (int i = 0; i < 1000000000 && !sigusr1_received; i++) {
+			j /= i + j + 1;
+			if (remote)
+				sleep(1);
+			else
+				if (!attr)
+					/* trigger the nanosleep tracepoint program. */
+					usleep(1);
+		}
+
+		buf[0] = sigusr1_received;
+
+		ASSERT_EQ(sigusr1_received, 8, "sigusr1_received");
+		ASSERT_EQ(write(pipe_c2p[1], buf, 1), 1, "pipe_write");
+
+		/* wait for parent notification and exit */
+		ASSERT_EQ(read(pipe_p2c[0], buf, 1), 1, "pipe_read");
+
+		/* restore the old priority */
+		if (!remote)
+			ASSERT_OK(setpriority(PRIO_PROCESS, 0, old_prio), "setpriority");
+
+		close(pipe_c2p[1]);
+		close(pipe_p2c[0]);
+		exit(0);
+	}
+
+	close(pipe_c2p[1]); /* close write */
+	close(pipe_p2c[0]); /* close read */
+
+	skel = test_send_signal_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto skel_open_load_failure;
+
+	/* boost with a high priority so we got a higher chance
+	 * that if an interrupt happens, the underlying task
+	 * is this process.
+	 */
+	if (remote) {
+		errno = 0;
+		old_prio = getpriority(PRIO_PROCESS, 0);
+		ASSERT_OK(errno, "getpriority");
+		ASSERT_OK(setpriority(PRIO_PROCESS, 0, -20), "setpriority");
+	}
+
+	if (!attr) {
+		err = test_send_signal_kern__attach(skel);
+		if (!ASSERT_OK(err, "skel_attach")) {
+			err = -1;
+			goto destroy_skel;
+		}
+	} else {
+		if (!remote)
+			pmu_fd = syscall(__NR_perf_event_open, attr, pid, -1 /* cpu */,
+					 -1 /* group id */, 0 /* flags */);
+		else
+			pmu_fd = syscall(__NR_perf_event_open, attr, getpid(), -1 /* cpu */,
+					 -1 /* group id */, 0 /* flags */);
+		if (!ASSERT_GE(pmu_fd, 0, "perf_event_open")) {
+			err = -1;
+			goto destroy_skel;
+		}
+
+		skel->links.send_signal_perf =
+			bpf_program__attach_perf_event(skel->progs.send_signal_perf, pmu_fd);
+		if (!ASSERT_OK_PTR(skel->links.send_signal_perf, "attach_perf_event"))
+			goto disable_pmu;
+	}
+
+	/* wait until child signal handler installed */
+	ASSERT_EQ(read(pipe_c2p[0], buf, 1), 1, "pipe_read");
+
+	/* trigger the bpf send_signal */
+	skel->bss->signal_thread = signal_thread;
+	skel->bss->sig = SIGUSR1;
+	if (!remote) {
+		skel->bss->target_pid = 0;
+		skel->bss->pid = pid;
+	} else {
+		skel->bss->target_pid = pid;
+		skel->bss->pid = getpid();
+	}
+
+	/* notify child that bpf program can send_signal now */
+	ASSERT_EQ(write(pipe_p2c[1], buf, 1), 1, "pipe_write");
+
+	for (retry_count = 0;;) {
+		/* For the remote test, the BPF program is triggered from this
+		 * process but the other process/thread is signaled.
+		 */
+		if (remote) {
+			if (!attr) {
+				for (int i = 0; i < 10; i++)
+					usleep(1);
+			} else {
+				for (int i = 0; i < 100000000; i++)
+					j /= i + 1;
+			}
+		}
+		/* wait for result */
+		err = read_with_timeout(pipe_c2p[0], buf, 1, 100);
+		if (err == -EAGAIN && retry_count++ < 10000)
+			continue;
+		break;
+	}
+	if (!ASSERT_GE(err, 0, "reading pipe"))
+		goto disable_pmu;
+	if (!ASSERT_GT(err, 0, "reading pipe error: size 0")) {
+		err = -1;
+		goto disable_pmu;
+	}
+
+	ASSERT_EQ(buf[0], 8, "incorrect result");
+
+	/* notify child safe to exit */
+	ASSERT_EQ(write(pipe_p2c[1], buf, 1), 1, "pipe_write");
+
+disable_pmu:
+	close(pmu_fd);
+destroy_skel:
+	test_send_signal_kern__destroy(skel);
+	/* restore the old priority */
+	if (remote)
+		ASSERT_OK(setpriority(PRIO_PROCESS, 0, old_prio), "setpriority");
+skel_open_load_failure:
+	close(pipe_c2p[0]);
+	close(pipe_p2c[1]);
+	/*
+	 * Child is either about to exit cleanly or stuck in case of errors.
+	 * Nudge it to exit.
+	 */
+	kill(pid, SIGKILL);
+	wait(NULL);
+}
+
+static void test_send_signal_tracepoint(bool signal_thread, bool remote)
+{
+	test_send_signal_common(NULL, signal_thread, remote);
+}
+
+static void test_send_signal_perf(bool signal_thread, bool remote)
+{
+	struct perf_event_attr attr = {
+		.freq = 1,
+		.sample_freq = 1000,
+		.type = PERF_TYPE_SOFTWARE,
+		.config = PERF_COUNT_SW_CPU_CLOCK,
+	};
+
+	test_send_signal_common(&attr, signal_thread, remote);
+}
+
+static void test_send_signal_nmi(bool signal_thread, bool remote)
+{
+	struct perf_event_attr attr = {
+		.freq = 1,
+		.sample_freq = 1000,
+		.type = PERF_TYPE_HARDWARE,
+		.config = PERF_COUNT_HW_CPU_CYCLES,
+	};
+	int pmu_fd;
+
+	/* Some setups (e.g. virtual machines) might run with hardware
+	 * perf events disabled. If this is the case, skip this test.
+	 */
+	pmu_fd = syscall(__NR_perf_event_open, &attr, 0 /* pid */,
+			 -1 /* cpu */, -1 /* group_fd */, 0 /* flags */);
+	if (pmu_fd == -1) {
+		if (errno == ENOENT || errno == EOPNOTSUPP) {
+			printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n",
+			       __func__);
+			test__skip();
+			return;
+		}
+		/* Let the test fail with a more informative message */
+	} else {
+		close(pmu_fd);
+	}
+
+	test_send_signal_common(&attr, signal_thread, remote);
+}
+
+void test_send_signal(void)
+{
+	if (test__start_subtest("send_signal_tracepoint"))
+		test_send_signal_tracepoint(false, false);
+	if (test__start_subtest("send_signal_perf"))
+		test_send_signal_perf(false, false);
+	if (test__start_subtest("send_signal_nmi"))
+		test_send_signal_nmi(false, false);
+	if (test__start_subtest("send_signal_tracepoint_thread"))
+		test_send_signal_tracepoint(true, false);
+	if (test__start_subtest("send_signal_perf_thread"))
+		test_send_signal_perf(true, false);
+	if (test__start_subtest("send_signal_nmi_thread"))
+		test_send_signal_nmi(true, false);
+
+	/* Signal remote thread and thread group */
+	if (test__start_subtest("send_signal_tracepoint_remote"))
+		test_send_signal_tracepoint(false, true);
+	if (test__start_subtest("send_signal_perf_remote"))
+		test_send_signal_perf(false, true);
+	if (test__start_subtest("send_signal_nmi_remote"))
+		test_send_signal_nmi(false, true);
+	if (test__start_subtest("send_signal_tracepoint_thread_remote"))
+		test_send_signal_tracepoint(true, true);
+	if (test__start_subtest("send_signal_perf_thread_remote"))
+		test_send_signal_perf(true, true);
+	if (test__start_subtest("send_signal_nmi_thread_remote"))
+		test_send_signal_nmi(true, true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal_sched_switch.c b/tools/testing/selftests/bpf/prog_tests/send_signal_sched_switch.c
new file mode 100644
index 000000000000..15dacfcfaa6d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal_sched_switch.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "test_send_signal_kern.skel.h"
+
+static void sigusr1_handler(int signum)
+{
+}
+
+#define THREAD_COUNT 100
+
+static void *worker(void *p)
+{
+	int i;
+
+	for ( i = 0; i < 1000; i++)
+		usleep(1);
+
+	return NULL;
+}
+
+/* NOTE: cause events loss */
+void serial_test_send_signal_sched_switch(void)
+{
+	struct test_send_signal_kern *skel;
+	pthread_t threads[THREAD_COUNT];
+	u32 duration = 0;
+	int i, err;
+
+	signal(SIGUSR1, sigusr1_handler);
+
+	skel = test_send_signal_kern__open_and_load();
+	if (CHECK(!skel, "skel_open_and_load", "skeleton open_and_load failed\n"))
+		return;
+
+	skel->bss->pid = getpid();
+	skel->bss->sig = SIGUSR1;
+
+	err = test_send_signal_kern__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed\n"))
+		goto destroy_skel;
+
+	for (i = 0; i < THREAD_COUNT; i++) {
+		err = pthread_create(threads + i, NULL, worker, NULL);
+		if (CHECK(err, "pthread_create", "Error creating thread, %s\n",
+			  strerror(errno)))
+			goto destroy_skel;
+	}
+
+	for (i = 0; i < THREAD_COUNT; i++)
+		pthread_join(threads[i], NULL);
+
+destroy_skel:
+	test_send_signal_kern__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/setget_sockopt.c b/tools/testing/selftests/bpf/prog_tests/setget_sockopt.c
new file mode 100644
index 000000000000..e4dac529d424
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/setget_sockopt.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <linux/socket.h>
+#include <linux/tls.h>
+#include <net/if.h>
+
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+#include "setget_sockopt.skel.h"
+
+#define CG_NAME "/setget-sockopt-test"
+
+static const char addr4_str[] = "127.0.0.1";
+static const char addr6_str[] = "::1";
+static struct setget_sockopt *skel;
+static int cg_fd;
+
+static int create_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "set lo up"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link add dev binddevtest1 type veth peer name binddevtest2"),
+		       "add veth"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link set dev binddevtest1 up"),
+		       "bring veth up"))
+		return -1;
+
+	return 0;
+}
+
+static void test_tcp(int family)
+{
+	struct setget_sockopt__bss *bss = skel->bss;
+	int sfd, cfd;
+
+	memset(bss, 0, sizeof(*bss));
+
+	sfd = start_server(family, SOCK_STREAM,
+			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
+	if (!ASSERT_GE(sfd, 0, "start_server"))
+		return;
+
+	cfd = connect_to_fd(sfd, 0);
+	if (!ASSERT_GE(cfd, 0, "connect_to_fd_server")) {
+		close(sfd);
+		return;
+	}
+	close(sfd);
+	close(cfd);
+
+	ASSERT_EQ(bss->nr_listen, 1, "nr_listen");
+	ASSERT_EQ(bss->nr_connect, 1, "nr_connect");
+	ASSERT_EQ(bss->nr_active, 1, "nr_active");
+	ASSERT_EQ(bss->nr_passive, 1, "nr_passive");
+	ASSERT_EQ(bss->nr_socket_post_create, 2, "nr_socket_post_create");
+	ASSERT_EQ(bss->nr_binddev, 2, "nr_bind");
+}
+
+static void test_udp(int family)
+{
+	struct setget_sockopt__bss *bss = skel->bss;
+	int sfd;
+
+	memset(bss, 0, sizeof(*bss));
+
+	sfd = start_server(family, SOCK_DGRAM,
+			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
+	if (!ASSERT_GE(sfd, 0, "start_server"))
+		return;
+	close(sfd);
+
+	ASSERT_GE(bss->nr_socket_post_create, 1, "nr_socket_post_create");
+	ASSERT_EQ(bss->nr_binddev, 1, "nr_bind");
+}
+
+static void test_ktls(int family)
+{
+	struct tls12_crypto_info_aes_gcm_128 aes128;
+	struct setget_sockopt__bss *bss = skel->bss;
+	int cfd = -1, sfd = -1, fd = -1, ret;
+	char buf;
+
+	memset(bss, 0, sizeof(*bss));
+
+	sfd = start_server(family, SOCK_STREAM,
+			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
+	if (!ASSERT_GE(sfd, 0, "start_server"))
+		return;
+	fd = connect_to_fd(sfd, 0);
+	if (!ASSERT_GE(fd, 0, "connect_to_fd"))
+		goto err_out;
+
+	cfd = accept(sfd, NULL, 0);
+	if (!ASSERT_GE(cfd, 0, "accept"))
+		goto err_out;
+
+	close(sfd);
+	sfd = -1;
+
+	/* Setup KTLS */
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (!ASSERT_OK(ret, "setsockopt"))
+		goto err_out;
+	ret = setsockopt(cfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (!ASSERT_OK(ret, "setsockopt"))
+		goto err_out;
+
+	memset(&aes128, 0, sizeof(aes128));
+	aes128.info.version = TLS_1_2_VERSION;
+	aes128.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+
+	ret = setsockopt(fd, SOL_TLS, TLS_TX, &aes128, sizeof(aes128));
+	if (!ASSERT_OK(ret, "setsockopt"))
+		goto err_out;
+
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX, &aes128, sizeof(aes128));
+	if (!ASSERT_OK(ret, "setsockopt"))
+		goto err_out;
+
+	/* KTLS is enabled */
+
+	close(fd);
+	/* At this point, the cfd socket is at the CLOSE_WAIT state
+	 * and still run TLS protocol.  The test for
+	 * BPF_TCP_CLOSE_WAIT should be run at this point.
+	 */
+	ret = read(cfd, &buf, sizeof(buf));
+	ASSERT_EQ(ret, 0, "read");
+	close(cfd);
+
+	ASSERT_EQ(bss->nr_listen, 1, "nr_listen");
+	ASSERT_EQ(bss->nr_connect, 1, "nr_connect");
+	ASSERT_EQ(bss->nr_active, 1, "nr_active");
+	ASSERT_EQ(bss->nr_passive, 1, "nr_passive");
+	ASSERT_EQ(bss->nr_socket_post_create, 2, "nr_socket_post_create");
+	ASSERT_EQ(bss->nr_binddev, 2, "nr_bind");
+	ASSERT_EQ(bss->nr_fin_wait1, 1, "nr_fin_wait1");
+	return;
+
+err_out:
+	close(fd);
+	close(cfd);
+	close(sfd);
+}
+
+static void test_nonstandard_opt(int family)
+{
+	struct setget_sockopt__bss *bss = skel->bss;
+	struct bpf_link *getsockopt_link = NULL;
+	int sfd = -1, fd = -1, cfd = -1, flags;
+	socklen_t flagslen = sizeof(flags);
+
+	memset(bss, 0, sizeof(*bss));
+
+	sfd = start_server(family, SOCK_STREAM,
+			   family == AF_INET6 ? addr6_str : addr4_str, 0, 0);
+	if (!ASSERT_GE(sfd, 0, "start_server"))
+		return;
+
+	fd = connect_to_fd(sfd, 0);
+	if (!ASSERT_GE(fd, 0, "connect_to_fd_server"))
+		goto err_out;
+
+	/* cgroup/getsockopt prog will intercept getsockopt() below and
+	 * retrieve the tcp socket bpf_sock_ops_cb_flags value for the
+	 * accept()ed socket; this was set earlier in the passive established
+	 * callback for the accept()ed socket via bpf_setsockopt().
+	 */
+	getsockopt_link = bpf_program__attach_cgroup(skel->progs._getsockopt, cg_fd);
+	if (!ASSERT_OK_PTR(getsockopt_link, "getsockopt prog"))
+		goto err_out;
+
+	cfd = accept(sfd, NULL, 0);
+	if (!ASSERT_GE(cfd, 0, "accept"))
+		goto err_out;
+
+	if (!ASSERT_OK(getsockopt(cfd, SOL_TCP, TCP_BPF_SOCK_OPS_CB_FLAGS, &flags, &flagslen),
+		       "getsockopt_flags"))
+		goto err_out;
+	ASSERT_EQ(flags & BPF_SOCK_OPS_STATE_CB_FLAG, BPF_SOCK_OPS_STATE_CB_FLAG,
+		  "cb_flags_set");
+err_out:
+	close(sfd);
+	if (fd != -1)
+		close(fd);
+	if (cfd != -1)
+		close(cfd);
+	bpf_link__destroy(getsockopt_link);
+}
+
+void test_setget_sockopt(void)
+{
+	cg_fd = test__join_cgroup(CG_NAME);
+	if (!ASSERT_OK_FD(cg_fd, "join cgroup"))
+		return;
+
+	if (create_netns())
+		goto done;
+
+	skel = setget_sockopt__open();
+	if (!ASSERT_OK_PTR(skel, "open skel"))
+		goto done;
+
+	strcpy(skel->rodata->veth, "binddevtest1");
+	skel->rodata->veth_ifindex = if_nametoindex("binddevtest1");
+	if (!ASSERT_GT(skel->rodata->veth_ifindex, 0, "if_nametoindex"))
+		goto done;
+
+	if (!ASSERT_OK(setget_sockopt__load(skel), "load skel"))
+		goto done;
+
+	skel->links.skops_sockopt =
+		bpf_program__attach_cgroup(skel->progs.skops_sockopt, cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.skops_sockopt, "attach cgroup"))
+		goto done;
+
+	skel->links.socket_post_create =
+		bpf_program__attach_cgroup(skel->progs.socket_post_create, cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.socket_post_create, "attach_cgroup"))
+		goto done;
+
+	test_tcp(AF_INET6);
+	test_tcp(AF_INET);
+	test_udp(AF_INET6);
+	test_udp(AF_INET);
+	test_ktls(AF_INET6);
+	test_ktls(AF_INET);
+	test_nonstandard_opt(AF_INET);
+	test_nonstandard_opt(AF_INET6);
+
+done:
+	setget_sockopt__destroy(skel);
+	close(cg_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sha256.c b/tools/testing/selftests/bpf/prog_tests/sha256.c
new file mode 100644
index 000000000000..604a0b1423d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sha256.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright 2025 Google LLC */
+
+#include <test_progs.h>
+#include "bpf/libbpf_internal.h"
+
+#define MAX_LEN 4096
+
+/* Test libbpf_sha256() for all lengths from 0 to MAX_LEN inclusively. */
+void test_sha256(void)
+{
+	/*
+	 * The correctness of this value was verified by running this test with
+	 * libbpf_sha256() replaced by OpenSSL's SHA256().
+	 */
+	static const __u8 expected_digest_of_digests[SHA256_DIGEST_LENGTH] = {
+		0x62, 0x30, 0x0e, 0x1d, 0xea, 0x7f, 0xc4, 0x74,
+		0xfd, 0x8e, 0x64, 0x0b, 0xd8, 0x5f, 0xea, 0x04,
+		0xf3, 0xef, 0x77, 0x42, 0xc2, 0x01, 0xb8, 0x90,
+		0x6e, 0x19, 0x91, 0x1b, 0xca, 0xb3, 0x28, 0x42,
+	};
+	__u64 seed = 0;
+	__u8 *data = NULL, *digests = NULL;
+	__u8 digest_of_digests[SHA256_DIGEST_LENGTH];
+	size_t i;
+
+	data = malloc(MAX_LEN);
+	if (!ASSERT_OK_PTR(data, "malloc"))
+		goto out;
+	digests = malloc((MAX_LEN + 1) * SHA256_DIGEST_LENGTH);
+	if (!ASSERT_OK_PTR(digests, "malloc"))
+		goto out;
+
+	/* Generate MAX_LEN bytes of "random" data deterministically. */
+	for (i = 0; i < MAX_LEN; i++) {
+		seed = (seed * 25214903917 + 11) & ((1ULL << 48) - 1);
+		data[i] = (__u8)(seed >> 16);
+	}
+
+	/* Calculate a digest for each length 0 through MAX_LEN inclusively. */
+	for (i = 0; i <= MAX_LEN; i++)
+		libbpf_sha256(data, i, &digests[i * SHA256_DIGEST_LENGTH]);
+
+	/* Calculate and verify the digest of all the digests. */
+	libbpf_sha256(digests, (MAX_LEN + 1) * SHA256_DIGEST_LENGTH,
+		      digest_of_digests);
+	ASSERT_MEMEQ(digest_of_digests, expected_digest_of_digests,
+		     SHA256_DIGEST_LENGTH, "digest_of_digests");
+out:
+	free(data);
+	free(digests);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/signal_pending.c b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
new file mode 100644
index 000000000000..70b49da5ca0a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/signal_pending.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void sigalrm_handler(int s) {}
+static struct sigaction sigalrm_action = {
+	.sa_handler = sigalrm_handler,
+};
+
+static void test_signal_pending_by_type(enum bpf_prog_type prog_type)
+{
+	struct bpf_insn prog[4096];
+	struct itimerval timeo = {
+		.it_value.tv_usec = 100000, /* 100ms */
+	};
+	int prog_fd;
+	int err;
+	int i;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 0xffffffff,
+	);
+
+	for (i = 0; i < ARRAY_SIZE(prog); i++)
+		prog[i] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
+	prog[ARRAY_SIZE(prog) - 1] = BPF_EXIT_INSN();
+
+	prog_fd = bpf_test_load_program(prog_type, prog, ARRAY_SIZE(prog),
+				   "GPL", 0, NULL, 0);
+	ASSERT_GE(prog_fd, 0, "test-run load");
+
+	err = sigaction(SIGALRM, &sigalrm_action, NULL);
+	ASSERT_OK(err, "test-run-signal-sigaction");
+
+	err = setitimer(ITIMER_REAL, &timeo, NULL);
+	ASSERT_OK(err, "test-run-signal-timer");
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_LE(topts.duration, 500000000 /* 500ms */,
+		  "test-run-signal-duration");
+
+	signal(SIGALRM, SIG_DFL);
+}
+
+void test_signal_pending(void)
+{
+	test_signal_pending_by_type(BPF_PROG_TYPE_SOCKET_FILTER);
+	test_signal_pending_by_type(BPF_PROG_TYPE_FLOW_DISSECTOR);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_assign.c b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
new file mode 100644
index 000000000000..10a0ab954b8a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sk_assign.c
@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+// Copyright (c) 2019 Cloudflare
+// Copyright (c) 2020 Isovalent, Inc.
+/*
+ * Test that the socket assign program is able to redirect traffic towards a
+ * socket, regardless of whether the port or address destination of the traffic
+ * matches the port.
+ */
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+
+#define BIND_PORT 1234
+#define CONNECT_PORT 4321
+#define TEST_DADDR (0xC0A80203)
+#define NS_SELF "/proc/self/ns/net"
+#define SERVER_MAP_PATH "/sys/fs/bpf/tc/globals/server_map"
+
+static int stop, duration;
+
+static bool
+configure_stack(void)
+{
+	char tc_version[128];
+	char tc_cmd[BUFSIZ];
+	char *prog;
+	FILE *tc;
+
+	/* Check whether tc is built with libbpf. */
+	tc = popen("tc -V", "r");
+	if (CHECK_FAIL(!tc))
+		return false;
+	if (CHECK_FAIL(!fgets(tc_version, sizeof(tc_version), tc))) {
+		pclose(tc);
+		return false;
+	}
+	if (strstr(tc_version, ", libbpf "))
+		prog = "test_sk_assign_libbpf.bpf.o";
+	else
+		prog = "test_sk_assign.bpf.o";
+	if (CHECK_FAIL(pclose(tc)))
+		return false;
+
+	/* Move to a new networking namespace */
+	if (CHECK_FAIL(unshare(CLONE_NEWNET)))
+		return false;
+
+	/* Configure necessary links, routes */
+	if (CHECK_FAIL(system("ip link set dev lo up")))
+		return false;
+	if (CHECK_FAIL(system("ip route add local default dev lo")))
+		return false;
+	if (CHECK_FAIL(system("ip -6 route add local default dev lo")))
+		return false;
+
+	/* Load qdisc, BPF program */
+	if (CHECK_FAIL(system("tc qdisc add dev lo clsact")))
+		return false;
+	sprintf(tc_cmd, "%s %s %s %s %s", "tc filter add dev lo ingress bpf",
+		       "direct-action object-file", prog,
+		       "section tc",
+		       (env.verbosity < VERBOSE_VERY) ? " 2>/dev/null" : "verbose");
+	if (CHECK(system(tc_cmd), "BPF load failed;",
+		  "run with -vv for more info\n"))
+		return false;
+
+	return true;
+}
+
+static in_port_t
+get_port(int fd)
+{
+	struct sockaddr_storage ss;
+	socklen_t slen = sizeof(ss);
+	in_port_t port = 0;
+
+	if (CHECK_FAIL(getsockname(fd, (struct sockaddr *)&ss, &slen)))
+		return port;
+
+	switch (ss.ss_family) {
+	case AF_INET:
+		port = ((struct sockaddr_in *)&ss)->sin_port;
+		break;
+	case AF_INET6:
+		port = ((struct sockaddr_in6 *)&ss)->sin6_port;
+		break;
+	default:
+		CHECK(1, "Invalid address family", "%d\n", ss.ss_family);
+	}
+	return port;
+}
+
+static ssize_t
+rcv_msg(int srv_client, int type)
+{
+	char buf[BUFSIZ];
+
+	if (type == SOCK_STREAM)
+		return read(srv_client, &buf, sizeof(buf));
+	else
+		return recvfrom(srv_client, &buf, sizeof(buf), 0, NULL, NULL);
+}
+
+static int
+run_test(int server_fd, const struct sockaddr *addr, socklen_t len, int type)
+{
+	int client = -1, srv_client = -1;
+	char buf[] = "testing";
+	in_port_t port;
+	int ret = 1;
+
+	client = connect_to_addr(type, (struct sockaddr_storage *)addr, len, NULL);
+	if (client == -1) {
+		perror("Cannot connect to server");
+		goto out;
+	}
+
+	if (type == SOCK_STREAM) {
+		srv_client = accept(server_fd, NULL, NULL);
+		if (CHECK_FAIL(srv_client == -1)) {
+			perror("Can't accept connection");
+			goto out;
+		}
+	} else {
+		srv_client = server_fd;
+	}
+	if (CHECK_FAIL(write(client, buf, sizeof(buf)) != sizeof(buf))) {
+		perror("Can't write on client");
+		goto out;
+	}
+	if (CHECK_FAIL(rcv_msg(srv_client, type) != sizeof(buf))) {
+		perror("Can't read on server");
+		goto out;
+	}
+
+	port = get_port(srv_client);
+	if (CHECK_FAIL(!port))
+		goto out;
+	/* SOCK_STREAM is connected via accept(), so the server's local address
+	 * will be the CONNECT_PORT rather than the BIND port that corresponds
+	 * to the listen socket. SOCK_DGRAM on the other hand is connectionless
+	 * so we can't really do the same check there; the server doesn't ever
+	 * create a socket with CONNECT_PORT.
+	 */
+	if (type == SOCK_STREAM &&
+	    CHECK(port != htons(CONNECT_PORT), "Expected", "port %u but got %u",
+		  CONNECT_PORT, ntohs(port)))
+		goto out;
+	else if (type == SOCK_DGRAM &&
+		 CHECK(port != htons(BIND_PORT), "Expected",
+		       "port %u but got %u", BIND_PORT, ntohs(port)))
+		goto out;
+
+	ret = 0;
+out:
+	close(client);
+	if (srv_client != server_fd)
+		close(srv_client);
+	if (ret)
+		WRITE_ONCE(stop, 1);
+	return ret;
+}
+
+static void
+prepare_addr(struct sockaddr *addr, int family, __u16 port, bool rewrite_addr)
+{
+	struct sockaddr_in *addr4;
+	struct sockaddr_in6 *addr6;
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)addr;
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = family;
+		addr4->sin_port = htons(port);
+		if (rewrite_addr)
+			addr4->sin_addr.s_addr = htonl(TEST_DADDR);
+		else
+			addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)addr;
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = family;
+		addr6->sin6_port = htons(port);
+		addr6->sin6_addr = in6addr_loopback;
+		if (rewrite_addr)
+			addr6->sin6_addr.s6_addr32[3] = htonl(TEST_DADDR);
+		break;
+	default:
+		fprintf(stderr, "Invalid family %d", family);
+	}
+}
+
+struct test_sk_cfg {
+	const char *name;
+	int family;
+	struct sockaddr *addr;
+	socklen_t len;
+	int type;
+	bool rewrite_addr;
+};
+
+#define TEST(NAME, FAMILY, TYPE, REWRITE)				\
+{									\
+	.name = NAME,							\
+	.family = FAMILY,						\
+	.addr = (FAMILY == AF_INET) ? (struct sockaddr *)&addr4		\
+				    : (struct sockaddr *)&addr6,	\
+	.len = (FAMILY == AF_INET) ? sizeof(addr4) : sizeof(addr6),	\
+	.type = TYPE,							\
+	.rewrite_addr = REWRITE,					\
+}
+
+void test_sk_assign(void)
+{
+	struct sockaddr_in addr4;
+	struct sockaddr_in6 addr6;
+	struct test_sk_cfg tests[] = {
+		TEST("ipv4 tcp port redir", AF_INET, SOCK_STREAM, false),
+		TEST("ipv4 tcp addr redir", AF_INET, SOCK_STREAM, true),
+		TEST("ipv6 tcp port redir", AF_INET6, SOCK_STREAM, false),
+		TEST("ipv6 tcp addr redir", AF_INET6, SOCK_STREAM, true),
+		TEST("ipv4 udp port redir", AF_INET, SOCK_DGRAM, false),
+		TEST("ipv4 udp addr redir", AF_INET, SOCK_DGRAM, true),
+		TEST("ipv6 udp port redir", AF_INET6, SOCK_DGRAM, false),
+		TEST("ipv6 udp addr redir", AF_INET6, SOCK_DGRAM, true),
+	};
+	__s64 server = -1;
+	int server_map;
+	int self_net;
+	int i;
+
+	self_net = open(NS_SELF, O_RDONLY);
+	if (CHECK_FAIL(self_net < 0)) {
+		perror("Unable to open "NS_SELF);
+		return;
+	}
+
+	if (!configure_stack()) {
+		perror("configure_stack");
+		goto cleanup;
+	}
+
+	server_map = bpf_obj_get(SERVER_MAP_PATH);
+	if (CHECK_FAIL(server_map < 0)) {
+		perror("Unable to open " SERVER_MAP_PATH);
+		goto cleanup;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(tests) && !READ_ONCE(stop); i++) {
+		struct test_sk_cfg *test = &tests[i];
+		const struct sockaddr *addr;
+		const int zero = 0;
+		int err;
+
+		if (!test__start_subtest(test->name))
+			continue;
+		prepare_addr(test->addr, test->family, BIND_PORT, false);
+		addr = (const struct sockaddr *)test->addr;
+		server = start_server_addr(test->type,
+					   (const struct sockaddr_storage *)addr,
+					   test->len, NULL);
+		if (server == -1)
+			goto close;
+
+		err = bpf_map_update_elem(server_map, &zero, &server, BPF_ANY);
+		if (CHECK_FAIL(err)) {
+			perror("Unable to update server_map");
+			goto close;
+		}
+
+		/* connect to unbound ports */
+		prepare_addr(test->addr, test->family, CONNECT_PORT,
+			     test->rewrite_addr);
+		if (run_test(server, addr, test->len, test->type))
+			goto close;
+
+		close(server);
+		server = -1;
+	}
+
+close:
+	close(server);
+	close(server_map);
+cleanup:
+	if (CHECK_FAIL(unlink(SERVER_MAP_PATH)))
+		perror("Unable to unlink " SERVER_MAP_PATH);
+	if (CHECK_FAIL(setns(self_net, CLONE_NEWNET)))
+		perror("Failed to setns("NS_SELF")");
+	close(self_net);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c b/tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c
new file mode 100644
index 000000000000..e4940583924b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sk_bypass_prot_mem.c
@@ -0,0 +1,292 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2025 Google LLC */
+
+#include <test_progs.h>
+#include "sk_bypass_prot_mem.skel.h"
+#include "network_helpers.h"
+
+#define NR_PAGES	32
+#define NR_SOCKETS	2
+#define BUF_TOTAL	(NR_PAGES * 4096 / NR_SOCKETS)
+#define BUF_SINGLE	1024
+#define NR_SEND		(BUF_TOTAL / BUF_SINGLE)
+
+struct test_case {
+	char name[8];
+	int family;
+	int type;
+	int (*create_sockets)(struct test_case *test_case, int sk[], int len);
+	long (*get_memory_allocated)(struct test_case *test_case, struct sk_bypass_prot_mem *skel);
+};
+
+static int tcp_create_sockets(struct test_case *test_case, int sk[], int len)
+{
+	int server, i, err = 0;
+
+	server = start_server(test_case->family, test_case->type, NULL, 0, 0);
+	if (!ASSERT_GE(server, 0, "start_server_str"))
+		return server;
+
+	/* Keep for-loop so we can change NR_SOCKETS easily. */
+	for (i = 0; i < len; i += 2) {
+		sk[i] = connect_to_fd(server, 0);
+		if (sk[i] < 0) {
+			ASSERT_GE(sk[i], 0, "connect_to_fd");
+			err = sk[i];
+			break;
+		}
+
+		sk[i + 1] = accept(server, NULL, NULL);
+		if (sk[i + 1] < 0) {
+			ASSERT_GE(sk[i + 1], 0, "accept");
+			err = sk[i + 1];
+			break;
+		}
+	}
+
+	close(server);
+
+	return err;
+}
+
+static int udp_create_sockets(struct test_case *test_case, int sk[], int len)
+{
+	int i, j, err, rcvbuf = BUF_TOTAL;
+
+	/* Keep for-loop so we can change NR_SOCKETS easily. */
+	for (i = 0; i < len; i += 2) {
+		sk[i] = start_server(test_case->family, test_case->type, NULL, 0, 0);
+		if (sk[i] < 0) {
+			ASSERT_GE(sk[i], 0, "start_server");
+			return sk[i];
+		}
+
+		sk[i + 1] = connect_to_fd(sk[i], 0);
+		if (sk[i + 1] < 0) {
+			ASSERT_GE(sk[i + 1], 0, "connect_to_fd");
+			return sk[i + 1];
+		}
+
+		err = connect_fd_to_fd(sk[i], sk[i + 1], 0);
+		if (err) {
+			ASSERT_EQ(err, 0, "connect_fd_to_fd");
+			return err;
+		}
+
+		for (j = 0; j < 2; j++) {
+			err = setsockopt(sk[i + j], SOL_SOCKET, SO_RCVBUF, &rcvbuf, sizeof(int));
+			if (err) {
+				ASSERT_EQ(err, 0, "setsockopt(SO_RCVBUF)");
+				return err;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static long get_memory_allocated(struct test_case *test_case,
+				 bool *activated, long *memory_allocated)
+{
+	int sk;
+
+	*activated = true;
+
+	/* AF_INET and AF_INET6 share the same memory_allocated.
+	 * tcp_init_sock() is called by AF_INET and AF_INET6,
+	 * but udp_lib_init_sock() is inline.
+	 */
+	sk = socket(AF_INET, test_case->type, 0);
+	if (!ASSERT_GE(sk, 0, "get_memory_allocated"))
+		return -1;
+
+	close(sk);
+
+	return *memory_allocated;
+}
+
+static long tcp_get_memory_allocated(struct test_case *test_case, struct sk_bypass_prot_mem *skel)
+{
+	return get_memory_allocated(test_case,
+				    &skel->bss->tcp_activated,
+				    &skel->bss->tcp_memory_allocated);
+}
+
+static long udp_get_memory_allocated(struct test_case *test_case, struct sk_bypass_prot_mem *skel)
+{
+	return get_memory_allocated(test_case,
+				    &skel->bss->udp_activated,
+				    &skel->bss->udp_memory_allocated);
+}
+
+static int check_bypass(struct test_case *test_case,
+			struct sk_bypass_prot_mem *skel, bool bypass)
+{
+	char buf[BUF_SINGLE] = {};
+	long memory_allocated[2];
+	int sk[NR_SOCKETS];
+	int err, i, j;
+
+	for (i = 0; i < ARRAY_SIZE(sk); i++)
+		sk[i] = -1;
+
+	err = test_case->create_sockets(test_case, sk, ARRAY_SIZE(sk));
+	if (err)
+		goto close;
+
+	memory_allocated[0] = test_case->get_memory_allocated(test_case, skel);
+
+	/* allocate pages >= NR_PAGES */
+	for (i = 0; i < ARRAY_SIZE(sk); i++) {
+		for (j = 0; j < NR_SEND; j++) {
+			int bytes = send(sk[i], buf, sizeof(buf), 0);
+
+			/* Avoid too noisy logs when something failed. */
+			if (bytes != sizeof(buf)) {
+				ASSERT_EQ(bytes, sizeof(buf), "send");
+				if (bytes < 0) {
+					err = bytes;
+					goto drain;
+				}
+			}
+		}
+	}
+
+	memory_allocated[1] = test_case->get_memory_allocated(test_case, skel);
+
+	if (bypass)
+		ASSERT_LE(memory_allocated[1], memory_allocated[0] + 10, "bypass");
+	else
+		ASSERT_GT(memory_allocated[1], memory_allocated[0] + NR_PAGES, "no bypass");
+
+drain:
+	if (test_case->type == SOCK_DGRAM) {
+		/* UDP starts purging sk->sk_receive_queue after one RCU
+		 * grace period, then udp_memory_allocated goes down,
+		 * so drain the queue before close().
+		 */
+		for (i = 0; i < ARRAY_SIZE(sk); i++) {
+			for (j = 0; j < NR_SEND; j++) {
+				int bytes = recv(sk[i], buf, 1, MSG_DONTWAIT | MSG_TRUNC);
+
+				if (bytes == sizeof(buf))
+					continue;
+				if (bytes != -1 || errno != EAGAIN)
+					PRINT_FAIL("bytes: %d, errno: %s\n", bytes, strerror(errno));
+				break;
+			}
+		}
+	}
+
+close:
+	for (i = 0; i < ARRAY_SIZE(sk); i++) {
+		if (sk[i] < 0)
+			break;
+
+		close(sk[i]);
+	}
+
+	return err;
+}
+
+static void run_test(struct test_case *test_case)
+{
+	struct sk_bypass_prot_mem *skel;
+	struct nstoken *nstoken;
+	int cgroup, err;
+
+	skel = sk_bypass_prot_mem__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	skel->bss->nr_cpus = libbpf_num_possible_cpus();
+
+	err = sk_bypass_prot_mem__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto destroy_skel;
+
+	cgroup = test__join_cgroup("/sk_bypass_prot_mem");
+	if (!ASSERT_GE(cgroup, 0, "join_cgroup"))
+		goto destroy_skel;
+
+	err = make_netns("sk_bypass_prot_mem");
+	if (!ASSERT_EQ(err, 0, "make_netns"))
+		goto close_cgroup;
+
+	nstoken = open_netns("sk_bypass_prot_mem");
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto remove_netns;
+
+	err = check_bypass(test_case, skel, false);
+	if (!ASSERT_EQ(err, 0, "test_bypass(false)"))
+		goto close_netns;
+
+	err = write_sysctl("/proc/sys/net/core/bypass_prot_mem", "1");
+	if (!ASSERT_EQ(err, 0, "write_sysctl(1)"))
+		goto close_netns;
+
+	err = check_bypass(test_case, skel, true);
+	if (!ASSERT_EQ(err, 0, "test_bypass(true by sysctl)"))
+		goto close_netns;
+
+	err = write_sysctl("/proc/sys/net/core/bypass_prot_mem", "0");
+	if (!ASSERT_EQ(err, 0, "write_sysctl(0)"))
+		goto close_netns;
+
+	skel->links.sock_create = bpf_program__attach_cgroup(skel->progs.sock_create, cgroup);
+	if (!ASSERT_OK_PTR(skel->links.sock_create, "attach_cgroup(sock_create)"))
+		goto close_netns;
+
+	err = check_bypass(test_case, skel, true);
+	ASSERT_EQ(err, 0, "test_bypass(true by bpf)");
+
+close_netns:
+	close_netns(nstoken);
+remove_netns:
+	remove_netns("sk_bypass_prot_mem");
+close_cgroup:
+	close(cgroup);
+destroy_skel:
+	sk_bypass_prot_mem__destroy(skel);
+}
+
+static struct test_case test_cases[] = {
+	{
+		.name = "TCP  ",
+		.family = AF_INET,
+		.type = SOCK_STREAM,
+		.create_sockets = tcp_create_sockets,
+		.get_memory_allocated = tcp_get_memory_allocated,
+	},
+	{
+		.name = "UDP  ",
+		.family = AF_INET,
+		.type = SOCK_DGRAM,
+		.create_sockets = udp_create_sockets,
+		.get_memory_allocated = udp_get_memory_allocated,
+	},
+	{
+		.name = "TCPv6",
+		.family = AF_INET6,
+		.type = SOCK_STREAM,
+		.create_sockets = tcp_create_sockets,
+		.get_memory_allocated = tcp_get_memory_allocated,
+	},
+	{
+		.name = "UDPv6",
+		.family = AF_INET6,
+		.type = SOCK_DGRAM,
+		.create_sockets = udp_create_sockets,
+		.get_memory_allocated = udp_get_memory_allocated,
+	},
+};
+
+void serial_test_sk_bypass_prot_mem(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		if (test__start_subtest(test_cases[i].name))
+			run_test(&test_cases[i]);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_lookup.c b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
new file mode 100644
index 000000000000..023c31bde229
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sk_lookup.c
@@ -0,0 +1,1360 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2020 Cloudflare
+/*
+ * Test BPF attach point for INET socket lookup (BPF_SK_LOOKUP).
+ *
+ * Tests exercise:
+ *  - attaching/detaching/querying programs to BPF_SK_LOOKUP hook,
+ *  - redirecting socket lookup to a socket selected by BPF program,
+ *  - failing a socket lookup on BPF program's request,
+ *  - error scenarios for selecting a socket from BPF program,
+ *  - accessing BPF program context,
+ *  - attaching and running multiple BPF programs.
+ *
+ * Tests run in a dedicated network namespace.
+ */
+
+#define _GNU_SOURCE
+#include <arpa/inet.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include <bpf/libbpf.h>
+#include <bpf/bpf.h>
+
+#include "test_progs.h"
+#include "bpf_util.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "testing_helpers.h"
+#include "test_sk_lookup.skel.h"
+
+/* External (address, port) pairs the client sends packets to. */
+#define EXT_IP4		"127.0.0.1"
+#define EXT_IP6		"fd00::1"
+#define EXT_PORT	7007
+
+/* Internal (address, port) pairs the server listens/receives at. */
+#define INT_IP4		"127.0.0.2"
+#define INT_IP4_V6	"::ffff:127.0.0.2"
+#define INT_IP6		"fd00::2"
+#define INT_PORT	8008
+
+enum server {
+	SERVER_A = 0,
+	SERVER_B = 1,
+	MAX_SERVERS,
+};
+
+enum {
+	PROG1 = 0,
+	PROG2,
+};
+
+struct inet_addr {
+	const char *ip;
+	unsigned short port;
+};
+
+struct test {
+	const char *desc;
+	struct bpf_program *lookup_prog;
+	struct bpf_program *reuseport_prog;
+	struct bpf_map *sock_map;
+	int sotype;
+	struct inet_addr connect_to;
+	struct inet_addr listen_at;
+	enum server accept_on;
+	bool reuseport_has_conns; /* Add a connected socket to reuseport group */
+};
+
+struct cb_opts {
+	int family;
+	int sotype;
+	bool reuseport;
+};
+
+static __u32 duration;		/* for CHECK macro */
+
+static bool is_ipv6(const char *ip)
+{
+	return !!strchr(ip, ':');
+}
+
+static int attach_reuseport(int sock_fd, struct bpf_program *reuseport_prog)
+{
+	int err, prog_fd;
+
+	prog_fd = bpf_program__fd(reuseport_prog);
+	if (prog_fd < 0) {
+		errno = -prog_fd;
+		return -1;
+	}
+
+	err = setsockopt(sock_fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF,
+			 &prog_fd, sizeof(prog_fd));
+	if (err)
+		return -1;
+
+	return 0;
+}
+
+static int setsockopts(int fd, void *opts)
+{
+	struct cb_opts *co = (struct cb_opts *)opts;
+	const int one = 1;
+	int err = 0;
+
+	/* Enabled for UDPv6 sockets for IPv4-mapped IPv6 to work. */
+	if (co->sotype == SOCK_DGRAM) {
+		err = setsockopt(fd, SOL_IP, IP_RECVORIGDSTADDR, &one,
+				 sizeof(one));
+		if (CHECK(err, "setsockopt(IP_RECVORIGDSTADDR)", "failed\n")) {
+			log_err("failed to enable IP_RECVORIGDSTADDR");
+			goto fail;
+		}
+	}
+
+	if (co->sotype == SOCK_DGRAM && co->family == AF_INET6) {
+		err = setsockopt(fd, SOL_IPV6, IPV6_RECVORIGDSTADDR, &one,
+				 sizeof(one));
+		if (CHECK(err, "setsockopt(IPV6_RECVORIGDSTADDR)", "failed\n")) {
+			log_err("failed to enable IPV6_RECVORIGDSTADDR");
+			goto fail;
+		}
+	}
+
+	if (co->sotype == SOCK_STREAM) {
+		err = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one,
+				 sizeof(one));
+		if (CHECK(err, "setsockopt(SO_REUSEADDR)", "failed\n")) {
+			log_err("failed to enable SO_REUSEADDR");
+			goto fail;
+		}
+	}
+
+	if (co->reuseport) {
+		err = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &one,
+				 sizeof(one));
+		if (CHECK(err, "setsockopt(SO_REUSEPORT)", "failed\n")) {
+			log_err("failed to enable SO_REUSEPORT");
+			goto fail;
+		}
+	}
+
+fail:
+	return err;
+}
+
+static int make_server(int sotype, const char *ip, int port,
+		       struct bpf_program *reuseport_prog)
+{
+	struct cb_opts cb_opts = {
+		.family = is_ipv6(ip) ? AF_INET6 : AF_INET,
+		.sotype = sotype,
+		.reuseport = reuseport_prog,
+	};
+	struct network_helper_opts opts = {
+		.backlog	= SOMAXCONN,
+		.post_socket_cb = setsockopts,
+		.cb_opts	= &cb_opts,
+	};
+	int err, fd;
+
+	fd = start_server_str(cb_opts.family, sotype, ip, port, &opts);
+	if (!ASSERT_OK_FD(fd, "start_server_str"))
+		return -1;
+
+	/* Late attach reuseport prog so we can have one init path */
+	if (reuseport_prog) {
+		err = attach_reuseport(fd, reuseport_prog);
+		if (CHECK(err, "attach_reuseport", "failed\n")) {
+			log_err("failed to attach reuseport prog");
+			goto fail;
+		}
+	}
+
+	return fd;
+fail:
+	close(fd);
+	return -1;
+}
+
+static __u64 socket_cookie(int fd)
+{
+	__u64 cookie;
+	socklen_t cookie_len = sizeof(cookie);
+
+	if (CHECK(getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie, &cookie_len) < 0,
+		  "getsockopt(SO_COOKIE)", "%s\n", strerror(errno)))
+		return 0;
+	return cookie;
+}
+
+static int fill_sk_lookup_ctx(struct bpf_sk_lookup *ctx, const char *local_ip, __u16 local_port,
+			      const char *remote_ip, __u16 remote_port)
+{
+	void *local, *remote;
+	int err;
+
+	memset(ctx, 0, sizeof(*ctx));
+	ctx->local_port = local_port;
+	ctx->remote_port = htons(remote_port);
+
+	if (is_ipv6(local_ip)) {
+		ctx->family = AF_INET6;
+		local = &ctx->local_ip6[0];
+		remote = &ctx->remote_ip6[0];
+	} else {
+		ctx->family = AF_INET;
+		local = &ctx->local_ip4;
+		remote = &ctx->remote_ip4;
+	}
+
+	err = inet_pton(ctx->family, local_ip, local);
+	if (CHECK(err != 1, "inet_pton", "local_ip failed\n"))
+		return 1;
+
+	err = inet_pton(ctx->family, remote_ip, remote);
+	if (CHECK(err != 1, "inet_pton", "remote_ip failed\n"))
+		return 1;
+
+	return 0;
+}
+
+static int send_byte(int fd)
+{
+	ssize_t n;
+
+	errno = 0;
+	n = send(fd, "a", 1, 0);
+	if (CHECK(n <= 0, "send_byte", "send")) {
+		log_err("failed/partial send");
+		return -1;
+	}
+	return 0;
+}
+
+static int recv_byte(int fd)
+{
+	char buf[1];
+	ssize_t n;
+
+	n = recv(fd, buf, sizeof(buf), 0);
+	if (CHECK(n <= 0, "recv_byte", "recv")) {
+		log_err("failed/partial recv");
+		return -1;
+	}
+	return 0;
+}
+
+static int tcp_recv_send(int server_fd)
+{
+	char buf[1];
+	int ret, fd;
+	ssize_t n;
+
+	fd = accept(server_fd, NULL, NULL);
+	if (CHECK(fd < 0, "accept", "failed\n")) {
+		log_err("failed to accept");
+		return -1;
+	}
+
+	n = recv(fd, buf, sizeof(buf), 0);
+	if (CHECK(n <= 0, "recv", "failed\n")) {
+		log_err("failed/partial recv");
+		ret = -1;
+		goto close;
+	}
+
+	n = send(fd, buf, n, 0);
+	if (CHECK(n <= 0, "send", "failed\n")) {
+		log_err("failed/partial send");
+		ret = -1;
+		goto close;
+	}
+
+	ret = 0;
+close:
+	close(fd);
+	return ret;
+}
+
+static void v4_to_v6(struct sockaddr_storage *ss)
+{
+	struct sockaddr_in6 *v6 = (struct sockaddr_in6 *)ss;
+	struct sockaddr_in v4 = *(struct sockaddr_in *)ss;
+
+	v6->sin6_family = AF_INET6;
+	v6->sin6_port = v4.sin_port;
+	v6->sin6_addr.s6_addr[10] = 0xff;
+	v6->sin6_addr.s6_addr[11] = 0xff;
+	memcpy(&v6->sin6_addr.s6_addr[12], &v4.sin_addr.s_addr, 4);
+	memset(&v6->sin6_addr.s6_addr[0], 0, 10);
+}
+
+static int udp_recv_send(int server_fd)
+{
+	char cmsg_buf[CMSG_SPACE(sizeof(struct sockaddr_storage))];
+	struct sockaddr_storage _src_addr = { 0 };
+	struct sockaddr_storage *src_addr = &_src_addr;
+	struct sockaddr_storage *dst_addr = NULL;
+	struct msghdr msg = { 0 };
+	struct iovec iov = { 0 };
+	struct cmsghdr *cm;
+	char buf[1];
+	int ret, fd;
+	ssize_t n;
+
+	iov.iov_base = buf;
+	iov.iov_len = sizeof(buf);
+
+	msg.msg_name = src_addr;
+	msg.msg_namelen = sizeof(*src_addr);
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	errno = 0;
+	n = recvmsg(server_fd, &msg, 0);
+	if (CHECK(n <= 0, "recvmsg", "failed\n")) {
+		log_err("failed to receive");
+		return -1;
+	}
+	if (CHECK(msg.msg_flags & MSG_CTRUNC, "recvmsg", "truncated cmsg\n"))
+		return -1;
+
+	for (cm = CMSG_FIRSTHDR(&msg); cm; cm = CMSG_NXTHDR(&msg, cm)) {
+		if ((cm->cmsg_level == SOL_IP &&
+		     cm->cmsg_type == IP_ORIGDSTADDR) ||
+		    (cm->cmsg_level == SOL_IPV6 &&
+		     cm->cmsg_type == IPV6_ORIGDSTADDR)) {
+			dst_addr = (struct sockaddr_storage *)CMSG_DATA(cm);
+			break;
+		}
+		log_err("warning: ignored cmsg at level %d type %d",
+			cm->cmsg_level, cm->cmsg_type);
+	}
+	if (CHECK(!dst_addr, "recvmsg", "missing ORIGDSTADDR\n"))
+		return -1;
+
+	/* Server socket bound to IPv4-mapped IPv6 address */
+	if (src_addr->ss_family == AF_INET6 &&
+	    dst_addr->ss_family == AF_INET) {
+		v4_to_v6(dst_addr);
+	}
+
+	/* Reply from original destination address. */
+	fd = start_server_addr(SOCK_DGRAM, dst_addr, sizeof(*dst_addr), NULL);
+	if (!ASSERT_OK_FD(fd, "start_server_addr")) {
+		log_err("failed to create tx socket");
+		return -1;
+	}
+
+	msg.msg_control = NULL;
+	msg.msg_controllen = 0;
+	n = sendmsg(fd, &msg, 0);
+	if (CHECK(n <= 0, "sendmsg", "failed\n")) {
+		log_err("failed to send echo reply");
+		ret = -1;
+		goto out;
+	}
+
+	ret = 0;
+out:
+	close(fd);
+	return ret;
+}
+
+static int tcp_echo_test(int client_fd, int server_fd)
+{
+	int err;
+
+	err = send_byte(client_fd);
+	if (err)
+		return -1;
+	err = tcp_recv_send(server_fd);
+	if (err)
+		return -1;
+	err = recv_byte(client_fd);
+	if (err)
+		return -1;
+
+	return 0;
+}
+
+static int udp_echo_test(int client_fd, int server_fd)
+{
+	int err;
+
+	err = send_byte(client_fd);
+	if (err)
+		return -1;
+	err = udp_recv_send(server_fd);
+	if (err)
+		return -1;
+	err = recv_byte(client_fd);
+	if (err)
+		return -1;
+
+	return 0;
+}
+
+static struct bpf_link *attach_lookup_prog(struct bpf_program *prog)
+{
+	struct bpf_link *link;
+	int net_fd;
+
+	net_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (CHECK(net_fd < 0, "open", "failed\n")) {
+		log_err("failed to open /proc/self/ns/net");
+		return NULL;
+	}
+
+	link = bpf_program__attach_netns(prog, net_fd);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_netns")) {
+		errno = -PTR_ERR(link);
+		log_err("failed to attach program '%s' to netns",
+			bpf_program__name(prog));
+		link = NULL;
+	}
+
+	close(net_fd);
+	return link;
+}
+
+static int update_lookup_map(struct bpf_map *map, int index, int sock_fd)
+{
+	int err, map_fd;
+	uint64_t value;
+
+	map_fd = bpf_map__fd(map);
+	if (CHECK(map_fd < 0, "bpf_map__fd", "failed\n")) {
+		errno = -map_fd;
+		log_err("failed to get map FD");
+		return -1;
+	}
+
+	value = (uint64_t)sock_fd;
+	err = bpf_map_update_elem(map_fd, &index, &value, BPF_NOEXIST);
+	if (CHECK(err, "bpf_map_update_elem", "failed\n")) {
+		log_err("failed to update redir_map @ %d", index);
+		return -1;
+	}
+
+	return 0;
+}
+
+static void query_lookup_prog(struct test_sk_lookup *skel)
+{
+	struct bpf_link *link[3] = {};
+	struct bpf_link_info info;
+	__u32 attach_flags = 0;
+	__u32 prog_ids[3] = {};
+	__u32 prog_cnt = 3;
+	__u32 prog_id;
+	int net_fd;
+	int err;
+
+	net_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (CHECK(net_fd < 0, "open", "failed\n")) {
+		log_err("failed to open /proc/self/ns/net");
+		return;
+	}
+
+	link[0] = attach_lookup_prog(skel->progs.lookup_pass);
+	if (!link[0])
+		goto close;
+	link[1] = attach_lookup_prog(skel->progs.lookup_pass);
+	if (!link[1])
+		goto detach;
+	link[2] = attach_lookup_prog(skel->progs.lookup_drop);
+	if (!link[2])
+		goto detach;
+
+	err = bpf_prog_query(net_fd, BPF_SK_LOOKUP, 0 /* query flags */,
+			     &attach_flags, prog_ids, &prog_cnt);
+	if (CHECK(err, "bpf_prog_query", "failed\n")) {
+		log_err("failed to query lookup prog");
+		goto detach;
+	}
+
+	errno = 0;
+	if (CHECK(attach_flags != 0, "bpf_prog_query",
+		  "wrong attach_flags on query: %u", attach_flags))
+		goto detach;
+	if (CHECK(prog_cnt != 3, "bpf_prog_query",
+		  "wrong program count on query: %u", prog_cnt))
+		goto detach;
+	prog_id = link_info_prog_id(link[0], &info);
+	CHECK(prog_ids[0] != prog_id, "bpf_prog_query",
+	      "invalid program #0 id on query: %u != %u\n",
+	      prog_ids[0], prog_id);
+	CHECK(info.netns.netns_ino == 0, "netns_ino",
+	      "unexpected netns_ino: %u\n", info.netns.netns_ino);
+	prog_id = link_info_prog_id(link[1], &info);
+	CHECK(prog_ids[1] != prog_id, "bpf_prog_query",
+	      "invalid program #1 id on query: %u != %u\n",
+	      prog_ids[1], prog_id);
+	CHECK(info.netns.netns_ino == 0, "netns_ino",
+	      "unexpected netns_ino: %u\n", info.netns.netns_ino);
+	prog_id = link_info_prog_id(link[2], &info);
+	CHECK(prog_ids[2] != prog_id, "bpf_prog_query",
+	      "invalid program #2 id on query: %u != %u\n",
+	      prog_ids[2], prog_id);
+	CHECK(info.netns.netns_ino == 0, "netns_ino",
+	      "unexpected netns_ino: %u\n", info.netns.netns_ino);
+
+	err = bpf_link__detach(link[0]);
+	if (CHECK(err, "link_detach", "failed %d\n", err))
+		goto detach;
+
+	/* prog id is still there, but netns_ino is zeroed out */
+	prog_id = link_info_prog_id(link[0], &info);
+	CHECK(prog_ids[0] != prog_id, "bpf_prog_query",
+	      "invalid program #0 id on query: %u != %u\n",
+	      prog_ids[0], prog_id);
+	CHECK(info.netns.netns_ino != 0, "netns_ino",
+	      "unexpected netns_ino: %u\n", info.netns.netns_ino);
+
+detach:
+	if (link[2])
+		bpf_link__destroy(link[2]);
+	if (link[1])
+		bpf_link__destroy(link[1]);
+	if (link[0])
+		bpf_link__destroy(link[0]);
+close:
+	close(net_fd);
+}
+
+static void run_lookup_prog(const struct test *t)
+{
+	int server_fds[] = { [0 ... MAX_SERVERS - 1] = -1 };
+	int client_fd, reuse_conn_fd = -1;
+	struct bpf_link *lookup_link;
+	int i, err;
+
+	lookup_link = attach_lookup_prog(t->lookup_prog);
+	if (!lookup_link)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
+		server_fds[i] = make_server(t->sotype, t->listen_at.ip,
+					    t->listen_at.port,
+					    t->reuseport_prog);
+		if (server_fds[i] < 0)
+			goto close;
+
+		err = update_lookup_map(t->sock_map, i, server_fds[i]);
+		if (err)
+			goto close;
+
+		/* want just one server for non-reuseport test */
+		if (!t->reuseport_prog)
+			break;
+	}
+
+	/* Regular UDP socket lookup with reuseport behaves
+	 * differently when reuseport group contains connected
+	 * sockets. Check that adding a connected UDP socket to the
+	 * reuseport group does not affect how reuseport works with
+	 * BPF socket lookup.
+	 */
+	if (t->reuseport_has_conns) {
+		/* Add an extra socket to reuseport group */
+		reuse_conn_fd = make_server(t->sotype, t->listen_at.ip,
+					    t->listen_at.port,
+					    t->reuseport_prog);
+		if (reuse_conn_fd < 0)
+			goto close;
+
+		 /* Connect the extra socket to itself */
+		err = connect_fd_to_fd(reuse_conn_fd, reuse_conn_fd, 0);
+		if (!ASSERT_OK(err, "connect_fd_to_fd"))
+			goto close;
+	}
+
+	client_fd = connect_to_addr_str(is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET,
+					t->sotype, t->connect_to.ip, t->connect_to.port, NULL);
+	if (!ASSERT_OK_FD(client_fd, "connect_to_addr_str"))
+		goto close;
+
+	if (t->sotype == SOCK_STREAM)
+		tcp_echo_test(client_fd, server_fds[t->accept_on]);
+	else
+		udp_echo_test(client_fd, server_fds[t->accept_on]);
+
+	close(client_fd);
+close:
+	if (reuse_conn_fd != -1)
+		close(reuse_conn_fd);
+	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
+		if (server_fds[i] != -1)
+			close(server_fds[i]);
+	}
+	bpf_link__destroy(lookup_link);
+}
+
+static void test_redirect_lookup(struct test_sk_lookup *skel)
+{
+	const struct test tests[] = {
+		{
+			.desc		= "TCP IPv4 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "TCP IPv4 redir addr",
+			.lookup_prog	= skel->progs.redir_ip4,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "TCP IPv4 redir with reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+			.accept_on	= SERVER_B,
+		},
+		{
+			.desc		= "TCP IPv4 redir skip reuseport",
+			.lookup_prog	= skel->progs.select_sock_a_no_reuseport,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+			.accept_on	= SERVER_A,
+		},
+		{
+			.desc		= "TCP IPv6 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, INT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 redir addr",
+			.lookup_prog	= skel->progs.redir_ip6,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, EXT_PORT },
+		},
+		{
+			.desc		= "TCP IPv4->IPv6 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4_V6, INT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 redir with reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+			.accept_on	= SERVER_B,
+		},
+		{
+			.desc		= "TCP IPv6 redir skip reuseport",
+			.lookup_prog	= skel->progs.select_sock_a_no_reuseport,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+			.accept_on	= SERVER_A,
+		},
+		{
+			.desc		= "UDP IPv4 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4 redir addr",
+			.lookup_prog	= skel->progs.redir_ip4,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4 redir with reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+			.accept_on	= SERVER_B,
+		},
+		{
+			.desc		= "UDP IPv4 redir and reuseport with conns",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+			.accept_on	= SERVER_B,
+			.reuseport_has_conns = true,
+		},
+		{
+			.desc		= "UDP IPv4 redir skip reuseport",
+			.lookup_prog	= skel->progs.select_sock_a_no_reuseport,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+			.accept_on	= SERVER_A,
+		},
+		{
+			.desc		= "UDP IPv6 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, INT_PORT },
+		},
+		{
+			.desc		= "UDP IPv6 redir addr",
+			.lookup_prog	= skel->progs.redir_ip6,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4->IPv6 redir port",
+			.lookup_prog	= skel->progs.redir_port,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.listen_at	= { INT_IP4_V6, INT_PORT },
+			.connect_to	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv6 redir and reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+			.accept_on	= SERVER_B,
+		},
+		{
+			.desc		= "UDP IPv6 redir and reuseport with conns",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+			.accept_on	= SERVER_B,
+			.reuseport_has_conns = true,
+		},
+		{
+			.desc		= "UDP IPv6 redir skip reuseport",
+			.lookup_prog	= skel->progs.select_sock_a_no_reuseport,
+			.reuseport_prog	= skel->progs.select_sock_b,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+			.accept_on	= SERVER_A,
+		},
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		if (test__start_subtest(t->desc))
+			run_lookup_prog(t);
+	}
+}
+
+static void drop_on_lookup(const struct test *t)
+{
+	int family = is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET;
+	struct sockaddr_storage dst = {};
+	int client_fd, server_fd, err;
+	struct bpf_link *lookup_link;
+	socklen_t len;
+	ssize_t n;
+
+	lookup_link = attach_lookup_prog(t->lookup_prog);
+	if (!lookup_link)
+		return;
+
+	server_fd = make_server(t->sotype, t->listen_at.ip, t->listen_at.port,
+				t->reuseport_prog);
+	if (server_fd < 0)
+		goto detach;
+
+	client_fd = client_socket(family, t->sotype, NULL);
+	if (!ASSERT_OK_FD(client_fd, "client_socket"))
+		goto close_srv;
+
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, &len);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto close_all;
+	err = connect(client_fd, (void *)&dst, len);
+	if (t->sotype == SOCK_DGRAM) {
+		err = send_byte(client_fd);
+		if (err)
+			goto close_all;
+
+		/* Read out asynchronous error */
+		n = recv(client_fd, NULL, 0, 0);
+		err = n == -1;
+	}
+	if (CHECK(!err || errno != ECONNREFUSED, "connect",
+		  "unexpected success or error\n"))
+		log_err("expected ECONNREFUSED on connect");
+
+close_all:
+	close(client_fd);
+close_srv:
+	close(server_fd);
+detach:
+	bpf_link__destroy(lookup_link);
+}
+
+static void test_drop_on_lookup(struct test_sk_lookup *skel)
+{
+	const struct test tests[] = {
+		{
+			.desc		= "TCP IPv4 drop on lookup",
+			.lookup_prog	= skel->progs.lookup_drop,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 drop on lookup",
+			.lookup_prog	= skel->progs.lookup_drop,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4 drop on lookup",
+			.lookup_prog	= skel->progs.lookup_drop,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv6 drop on lookup",
+			.lookup_prog	= skel->progs.lookup_drop,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, INT_PORT },
+		},
+		/* The program will drop on success, meaning that the ifindex
+		 * was 1.
+		 */
+		{
+			.desc		= "TCP IPv4 drop on valid ifindex",
+			.lookup_prog	= skel->progs.check_ifindex,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 drop on valid ifindex",
+			.lookup_prog	= skel->progs.check_ifindex,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4 drop on valid ifindex",
+			.lookup_prog	= skel->progs.check_ifindex,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "UDP IPv6 drop on valid ifindex",
+			.lookup_prog	= skel->progs.check_ifindex,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { EXT_IP6, EXT_PORT },
+		},
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		if (test__start_subtest(t->desc))
+			drop_on_lookup(t);
+	}
+}
+
+static void drop_on_reuseport(const struct test *t)
+{
+	int family = is_ipv6(t->connect_to.ip) ? AF_INET6 : AF_INET;
+	struct sockaddr_storage dst = { 0 };
+	int client, server1, server2, err;
+	struct bpf_link *lookup_link;
+	socklen_t len;
+	ssize_t n;
+
+	lookup_link = attach_lookup_prog(t->lookup_prog);
+	if (!lookup_link)
+		return;
+
+	server1 = make_server(t->sotype, t->listen_at.ip, t->listen_at.port,
+			      t->reuseport_prog);
+	if (server1 < 0)
+		goto detach;
+
+	err = update_lookup_map(t->sock_map, SERVER_A, server1);
+	if (err)
+		goto close_srv1;
+
+	/* second server on destination address we should never reach */
+	server2 = make_server(t->sotype, t->connect_to.ip, t->connect_to.port,
+			      NULL /* reuseport prog */);
+	if (server2 < 0)
+		goto close_srv1;
+
+	client = client_socket(family, t->sotype, NULL);
+	if (!ASSERT_OK_FD(client, "client_socket"))
+		goto close_srv2;
+
+	err = make_sockaddr(family, t->connect_to.ip, t->connect_to.port, &dst, &len);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto close_all;
+	err = connect(client, (void *)&dst, len);
+	if (t->sotype == SOCK_DGRAM) {
+		err = send_byte(client);
+		if (err)
+			goto close_all;
+
+		/* Read out asynchronous error */
+		n = recv(client, NULL, 0, 0);
+		err = n == -1;
+	}
+	if (CHECK(!err || errno != ECONNREFUSED, "connect",
+		  "unexpected success or error\n"))
+		log_err("expected ECONNREFUSED on connect");
+
+close_all:
+	close(client);
+close_srv2:
+	close(server2);
+close_srv1:
+	close(server1);
+detach:
+	bpf_link__destroy(lookup_link);
+}
+
+static void test_drop_on_reuseport(struct test_sk_lookup *skel)
+{
+	const struct test tests[] = {
+		{
+			.desc		= "TCP IPv4 drop on reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.reuseport_drop,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 drop on reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.reuseport_drop,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+		},
+		{
+			.desc		= "UDP IPv4 drop on reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.reuseport_drop,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_DGRAM,
+			.connect_to	= { EXT_IP4, EXT_PORT },
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "TCP IPv6 drop on reuseport",
+			.lookup_prog	= skel->progs.select_sock_a,
+			.reuseport_prog	= skel->progs.reuseport_drop,
+			.sock_map	= skel->maps.redir_map,
+			.sotype		= SOCK_STREAM,
+			.connect_to	= { EXT_IP6, EXT_PORT },
+			.listen_at	= { INT_IP6, INT_PORT },
+		},
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		if (test__start_subtest(t->desc))
+			drop_on_reuseport(t);
+	}
+}
+
+static void run_sk_assign(struct test_sk_lookup *skel,
+			  struct bpf_program *lookup_prog,
+			  const char *remote_ip, const char *local_ip)
+{
+	int server_fds[] = { [0 ... MAX_SERVERS - 1] = -1 };
+	struct bpf_sk_lookup ctx;
+	__u64 server_cookie;
+	int i, err;
+
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.ctx_in = &ctx,
+		.ctx_size_in = sizeof(ctx),
+		.ctx_out = &ctx,
+		.ctx_size_out = sizeof(ctx),
+	);
+
+	if (fill_sk_lookup_ctx(&ctx, local_ip, EXT_PORT, remote_ip, INT_PORT))
+		return;
+
+	ctx.protocol = IPPROTO_TCP;
+
+	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
+		server_fds[i] = make_server(SOCK_STREAM, local_ip, 0, NULL);
+		if (server_fds[i] < 0)
+			goto close_servers;
+
+		err = update_lookup_map(skel->maps.redir_map, i,
+					server_fds[i]);
+		if (err)
+			goto close_servers;
+	}
+
+	server_cookie = socket_cookie(server_fds[SERVER_B]);
+	if (!server_cookie)
+		return;
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(lookup_prog), &opts);
+	if (CHECK(err, "test_run", "failed with error %d\n", errno))
+		goto close_servers;
+
+	if (CHECK(ctx.cookie == 0, "ctx.cookie", "no socket selected\n"))
+		goto close_servers;
+
+	CHECK(ctx.cookie != server_cookie, "ctx.cookie",
+	      "selected sk %llu instead of %llu\n", ctx.cookie, server_cookie);
+
+close_servers:
+	for (i = 0; i < ARRAY_SIZE(server_fds); i++) {
+		if (server_fds[i] != -1)
+			close(server_fds[i]);
+	}
+}
+
+static void run_sk_assign_v4(struct test_sk_lookup *skel,
+			     struct bpf_program *lookup_prog)
+{
+	run_sk_assign(skel, lookup_prog, INT_IP4, EXT_IP4);
+}
+
+static void run_sk_assign_v6(struct test_sk_lookup *skel,
+			     struct bpf_program *lookup_prog)
+{
+	run_sk_assign(skel, lookup_prog, INT_IP6, EXT_IP6);
+}
+
+static void run_sk_assign_connected(struct test_sk_lookup *skel,
+				    int sotype)
+{
+	int err, client_fd, connected_fd, server_fd;
+	struct bpf_link *lookup_link;
+
+	server_fd = make_server(sotype, EXT_IP4, EXT_PORT, NULL);
+	if (server_fd < 0)
+		return;
+
+	connected_fd = connect_to_addr_str(AF_INET, sotype, EXT_IP4, EXT_PORT, NULL);
+	if (!ASSERT_OK_FD(connected_fd, "connect_to_addr_str"))
+		goto out_close_server;
+
+	/* Put a connected socket in redirect map */
+	err = update_lookup_map(skel->maps.redir_map, SERVER_A, connected_fd);
+	if (err)
+		goto out_close_connected;
+
+	lookup_link = attach_lookup_prog(skel->progs.sk_assign_esocknosupport);
+	if (!lookup_link)
+		goto out_close_connected;
+
+	/* Try to redirect TCP SYN / UDP packet to a connected socket */
+	client_fd = connect_to_addr_str(AF_INET, sotype, EXT_IP4, EXT_PORT, NULL);
+	if (!ASSERT_OK_FD(client_fd, "connect_to_addr_str"))
+		goto out_unlink_prog;
+	if (sotype == SOCK_DGRAM) {
+		send_byte(client_fd);
+		recv_byte(server_fd);
+	}
+
+	close(client_fd);
+out_unlink_prog:
+	bpf_link__destroy(lookup_link);
+out_close_connected:
+	close(connected_fd);
+out_close_server:
+	close(server_fd);
+}
+
+static void test_sk_assign_helper(struct test_sk_lookup *skel)
+{
+	if (test__start_subtest("sk_assign returns EEXIST"))
+		run_sk_assign_v4(skel, skel->progs.sk_assign_eexist);
+	if (test__start_subtest("sk_assign honors F_REPLACE"))
+		run_sk_assign_v4(skel, skel->progs.sk_assign_replace_flag);
+	if (test__start_subtest("sk_assign accepts NULL socket"))
+		run_sk_assign_v4(skel, skel->progs.sk_assign_null);
+	if (test__start_subtest("access ctx->sk"))
+		run_sk_assign_v4(skel, skel->progs.access_ctx_sk);
+	if (test__start_subtest("narrow access to ctx v4"))
+		run_sk_assign_v4(skel, skel->progs.ctx_narrow_access);
+	if (test__start_subtest("narrow access to ctx v6"))
+		run_sk_assign_v6(skel, skel->progs.ctx_narrow_access);
+	if (test__start_subtest("sk_assign rejects TCP established"))
+		run_sk_assign_connected(skel, SOCK_STREAM);
+	if (test__start_subtest("sk_assign rejects UDP connected"))
+		run_sk_assign_connected(skel, SOCK_DGRAM);
+}
+
+struct test_multi_prog {
+	const char *desc;
+	struct bpf_program *prog1;
+	struct bpf_program *prog2;
+	struct bpf_map *redir_map;
+	struct bpf_map *run_map;
+	int expect_errno;
+	struct inet_addr listen_at;
+};
+
+static void run_multi_prog_lookup(const struct test_multi_prog *t)
+{
+	struct sockaddr_storage dst = {};
+	int map_fd, server_fd, client_fd;
+	struct bpf_link *link1, *link2;
+	int prog_idx, done, err;
+	socklen_t len;
+
+	map_fd = bpf_map__fd(t->run_map);
+
+	done = 0;
+	prog_idx = PROG1;
+	err = bpf_map_update_elem(map_fd, &prog_idx, &done, BPF_ANY);
+	if (CHECK(err, "bpf_map_update_elem", "failed\n"))
+		return;
+	prog_idx = PROG2;
+	err = bpf_map_update_elem(map_fd, &prog_idx, &done, BPF_ANY);
+	if (CHECK(err, "bpf_map_update_elem", "failed\n"))
+		return;
+
+	link1 = attach_lookup_prog(t->prog1);
+	if (!link1)
+		return;
+	link2 = attach_lookup_prog(t->prog2);
+	if (!link2)
+		goto out_unlink1;
+
+	server_fd = make_server(SOCK_STREAM, t->listen_at.ip,
+				t->listen_at.port, NULL);
+	if (server_fd < 0)
+		goto out_unlink2;
+
+	err = update_lookup_map(t->redir_map, SERVER_A, server_fd);
+	if (err)
+		goto out_close_server;
+
+	client_fd = client_socket(AF_INET, SOCK_STREAM, NULL);
+	if (!ASSERT_OK_FD(client_fd, "client_socket"))
+		goto out_close_server;
+
+	err = make_sockaddr(AF_INET, EXT_IP4, EXT_PORT, &dst, &len);
+	if (!ASSERT_OK(err, "make_sockaddr"))
+		goto out_close_client;
+	err = connect(client_fd, (void *)&dst, len);
+	if (CHECK(err && !t->expect_errno, "connect",
+		  "unexpected error %d\n", errno))
+		goto out_close_client;
+	if (CHECK(err && t->expect_errno && errno != t->expect_errno,
+		  "connect", "unexpected error %d\n", errno))
+		goto out_close_client;
+
+	done = 0;
+	prog_idx = PROG1;
+	err = bpf_map_lookup_elem(map_fd, &prog_idx, &done);
+	CHECK(err, "bpf_map_lookup_elem", "failed\n");
+	CHECK(!done, "bpf_map_lookup_elem", "PROG1 !done\n");
+
+	done = 0;
+	prog_idx = PROG2;
+	err = bpf_map_lookup_elem(map_fd, &prog_idx, &done);
+	CHECK(err, "bpf_map_lookup_elem", "failed\n");
+	CHECK(!done, "bpf_map_lookup_elem", "PROG2 !done\n");
+
+out_close_client:
+	close(client_fd);
+out_close_server:
+	close(server_fd);
+out_unlink2:
+	bpf_link__destroy(link2);
+out_unlink1:
+	bpf_link__destroy(link1);
+}
+
+static void test_multi_prog_lookup(struct test_sk_lookup *skel)
+{
+	struct test_multi_prog tests[] = {
+		{
+			.desc		= "multi prog - pass, pass",
+			.prog1		= skel->progs.multi_prog_pass1,
+			.prog2		= skel->progs.multi_prog_pass2,
+			.listen_at	= { EXT_IP4, EXT_PORT },
+		},
+		{
+			.desc		= "multi prog - drop, drop",
+			.prog1		= skel->progs.multi_prog_drop1,
+			.prog2		= skel->progs.multi_prog_drop2,
+			.listen_at	= { EXT_IP4, EXT_PORT },
+			.expect_errno	= ECONNREFUSED,
+		},
+		{
+			.desc		= "multi prog - pass, drop",
+			.prog1		= skel->progs.multi_prog_pass1,
+			.prog2		= skel->progs.multi_prog_drop2,
+			.listen_at	= { EXT_IP4, EXT_PORT },
+			.expect_errno	= ECONNREFUSED,
+		},
+		{
+			.desc		= "multi prog - drop, pass",
+			.prog1		= skel->progs.multi_prog_drop1,
+			.prog2		= skel->progs.multi_prog_pass2,
+			.listen_at	= { EXT_IP4, EXT_PORT },
+			.expect_errno	= ECONNREFUSED,
+		},
+		{
+			.desc		= "multi prog - pass, redir",
+			.prog1		= skel->progs.multi_prog_pass1,
+			.prog2		= skel->progs.multi_prog_redir2,
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "multi prog - redir, pass",
+			.prog1		= skel->progs.multi_prog_redir1,
+			.prog2		= skel->progs.multi_prog_pass2,
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "multi prog - drop, redir",
+			.prog1		= skel->progs.multi_prog_drop1,
+			.prog2		= skel->progs.multi_prog_redir2,
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "multi prog - redir, drop",
+			.prog1		= skel->progs.multi_prog_redir1,
+			.prog2		= skel->progs.multi_prog_drop2,
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+		{
+			.desc		= "multi prog - redir, redir",
+			.prog1		= skel->progs.multi_prog_redir1,
+			.prog2		= skel->progs.multi_prog_redir2,
+			.listen_at	= { INT_IP4, INT_PORT },
+		},
+	};
+	struct test_multi_prog *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		t->redir_map = skel->maps.redir_map;
+		t->run_map = skel->maps.run_map;
+		if (test__start_subtest(t->desc))
+			run_multi_prog_lookup(t);
+	}
+}
+
+static void run_tests(struct test_sk_lookup *skel)
+{
+	if (test__start_subtest("query lookup prog"))
+		query_lookup_prog(skel);
+	test_redirect_lookup(skel);
+	test_drop_on_lookup(skel);
+	test_drop_on_reuseport(skel);
+	test_sk_assign_helper(skel);
+	test_multi_prog_lookup(skel);
+}
+
+static int switch_netns(void)
+{
+	static const char * const setup_script[] = {
+		"ip -6 addr add dev lo " EXT_IP6 "/128",
+		"ip -6 addr add dev lo " INT_IP6 "/128",
+		"ip link set dev lo up",
+		NULL,
+	};
+	const char * const *cmd;
+	int err;
+
+	err = unshare(CLONE_NEWNET);
+	if (CHECK(err, "unshare", "failed\n")) {
+		log_err("unshare(CLONE_NEWNET)");
+		return -1;
+	}
+
+	for (cmd = setup_script; *cmd; cmd++) {
+		err = system(*cmd);
+		if (CHECK(err, "system", "failed\n")) {
+			log_err("system(%s)", *cmd);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+void test_sk_lookup(void)
+{
+	struct test_sk_lookup *skel;
+	int err;
+
+	err = switch_netns();
+	if (err)
+		return;
+
+	skel = test_sk_lookup__open_and_load();
+	if (CHECK(!skel, "skel open_and_load", "failed\n"))
+		return;
+
+	run_tests(skel);
+
+	test_sk_lookup__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_storage_omem_uncharge.c b/tools/testing/selftests/bpf/prog_tests/sk_storage_omem_uncharge.c
new file mode 100644
index 000000000000..f35852d245e3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sk_storage_omem_uncharge.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Facebook */
+#include <test_progs.h>
+#include <bpf/libbpf.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include "sk_storage_omem_uncharge.skel.h"
+
+void test_sk_storage_omem_uncharge(void)
+{
+	struct sk_storage_omem_uncharge *skel;
+	int sk_fd = -1, map_fd, err, value;
+	socklen_t optlen;
+
+	skel = sk_storage_omem_uncharge__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open_and_load"))
+		return;
+	map_fd = bpf_map__fd(skel->maps.sk_storage);
+
+	/* A standalone socket not binding to addr:port,
+	 * so nentns is not needed.
+	 */
+	sk_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sk_fd, 0, "socket"))
+		goto done;
+
+	optlen = sizeof(skel->bss->cookie);
+	err = getsockopt(sk_fd, SOL_SOCKET, SO_COOKIE, &skel->bss->cookie, &optlen);
+	if (!ASSERT_OK(err, "getsockopt(SO_COOKIE)"))
+		goto done;
+
+	value = 0;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(value=0)"))
+		goto done;
+
+	value = 0xdeadbeef;
+	err = bpf_map_update_elem(map_fd, &sk_fd, &value, 0);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(value=0xdeadbeef)"))
+		goto done;
+
+	err = sk_storage_omem_uncharge__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto done;
+
+	close(sk_fd);
+	sk_fd = -1;
+
+	ASSERT_EQ(skel->bss->cookie_found, 2, "cookie_found");
+	ASSERT_EQ(skel->bss->omem, 0, "omem");
+
+done:
+	sk_storage_omem_uncharge__destroy(skel);
+	if (sk_fd != -1)
+		close(sk_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sk_storage_tracing.c b/tools/testing/selftests/bpf/prog_tests/sk_storage_tracing.c
new file mode 100644
index 000000000000..547ae53cde74
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sk_storage_tracing.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <sys/types.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "test_sk_storage_trace_itself.skel.h"
+#include "test_sk_storage_tracing.skel.h"
+
+#define LO_ADDR6 "::1"
+#define TEST_COMM "test_progs"
+
+struct sk_stg {
+	__u32 pid;
+	__u32 last_notclose_state;
+	char comm[16];
+};
+
+static struct test_sk_storage_tracing *skel;
+static __u32 duration;
+static pid_t my_pid;
+
+static int check_sk_stg(int sk_fd, __u32 expected_state)
+{
+	struct sk_stg sk_stg;
+	int err;
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.sk_stg_map), &sk_fd,
+				  &sk_stg);
+	if (!ASSERT_OK(err, "map_lookup(sk_stg_map)"))
+		return -1;
+
+	if (!ASSERT_EQ(sk_stg.last_notclose_state, expected_state,
+		       "last_notclose_state"))
+		return -1;
+
+	if (!ASSERT_EQ(sk_stg.pid, my_pid, "pid"))
+		return -1;
+
+	if (!ASSERT_STREQ(sk_stg.comm, skel->bss->task_comm, "task_comm"))
+		return -1;
+
+	return 0;
+}
+
+static void do_test(void)
+{
+	int listen_fd = -1, passive_fd = -1, active_fd = -1, value = 1, err;
+	char abyte;
+
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, LO_ADDR6, 0, 0);
+	if (CHECK(listen_fd == -1, "start_server",
+		  "listen_fd:%d errno:%d\n", listen_fd, errno))
+		return;
+
+	active_fd = connect_to_fd(listen_fd, 0);
+	if (CHECK(active_fd == -1, "connect_to_fd", "active_fd:%d errno:%d\n",
+		  active_fd, errno))
+		goto out;
+
+	err = bpf_map_update_elem(bpf_map__fd(skel->maps.del_sk_stg_map),
+				  &active_fd, &value, 0);
+	if (!ASSERT_OK(err, "map_update(del_sk_stg_map)"))
+		goto out;
+
+	passive_fd = accept(listen_fd, NULL, 0);
+	if (CHECK(passive_fd == -1, "accept", "passive_fd:%d errno:%d\n",
+		  passive_fd, errno))
+		goto out;
+
+	shutdown(active_fd, SHUT_WR);
+	err = read(passive_fd, &abyte, 1);
+	if (!ASSERT_OK(err, "read(passive_fd)"))
+		goto out;
+
+	shutdown(passive_fd, SHUT_WR);
+	err = read(active_fd, &abyte, 1);
+	if (!ASSERT_OK(err, "read(active_fd)"))
+		goto out;
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.del_sk_stg_map),
+				  &active_fd, &value);
+	if (!ASSERT_ERR(err, "map_lookup(del_sk_stg_map)"))
+		goto out;
+
+	err = check_sk_stg(listen_fd, BPF_TCP_LISTEN);
+	if (!ASSERT_OK(err, "listen_fd sk_stg"))
+		goto out;
+
+	err = check_sk_stg(active_fd, BPF_TCP_FIN_WAIT2);
+	if (!ASSERT_OK(err, "active_fd sk_stg"))
+		goto out;
+
+	err = check_sk_stg(passive_fd, BPF_TCP_LAST_ACK);
+	ASSERT_OK(err, "passive_fd sk_stg");
+
+out:
+	if (active_fd != -1)
+		close(active_fd);
+	if (passive_fd != -1)
+		close(passive_fd);
+	if (listen_fd != -1)
+		close(listen_fd);
+}
+
+void serial_test_sk_storage_tracing(void)
+{
+	struct test_sk_storage_trace_itself *skel_itself;
+	int err;
+
+	my_pid = getpid();
+
+	skel_itself = test_sk_storage_trace_itself__open_and_load();
+
+	if (!ASSERT_NULL(skel_itself, "test_sk_storage_trace_itself")) {
+		test_sk_storage_trace_itself__destroy(skel_itself);
+		return;
+	}
+
+	skel = test_sk_storage_tracing__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_sk_storage_tracing"))
+		return;
+
+	err = test_sk_storage_tracing__attach(skel);
+	if (!ASSERT_OK(err, "test_sk_storage_tracing__attach")) {
+		test_sk_storage_tracing__destroy(skel);
+		return;
+	}
+
+	do_test();
+
+	test_sk_storage_tracing__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/skb_ctx.c b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
new file mode 100644
index 000000000000..33f950e2dae3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/skb_ctx.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_skb_ctx(void)
+{
+	struct __sk_buff skb = {
+		.cb[0] = 1,
+		.cb[1] = 2,
+		.cb[2] = 3,
+		.cb[3] = 4,
+		.cb[4] = 5,
+		.priority = 6,
+		.ingress_ifindex = 11,
+		.ifindex = 1,
+		.tstamp = 7,
+		.wire_len = 100,
+		.gso_segs = 8,
+		.mark = 9,
+		.gso_size = 10,
+		.hwtstamp = 11,
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, tattr,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.ctx_in = &skb,
+		.ctx_size_in = sizeof(skb),
+		.ctx_out = &skb,
+		.ctx_size_out = sizeof(skb),
+	);
+	struct bpf_object *obj;
+	int err, prog_fd, i;
+
+	err = bpf_prog_test_load("./test_skb_ctx.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (!ASSERT_OK(err, "load"))
+		return;
+
+	/* ctx_in != NULL, ctx_size_in == 0 */
+
+	tattr.ctx_size_in = 0;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "ctx_size_in");
+	tattr.ctx_size_in = sizeof(skb);
+
+	/* ctx_out != NULL, ctx_size_out == 0 */
+
+	tattr.ctx_size_out = 0;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "ctx_size_out");
+	tattr.ctx_size_out = sizeof(skb);
+
+	/* non-zero [len, tc_index] fields should be rejected*/
+
+	skb.len = 1;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "len");
+	skb.len = 0;
+
+	skb.tc_index = 1;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "tc_index");
+	skb.tc_index = 0;
+
+	/* non-zero [hash, sk] fields should be rejected */
+
+	skb.hash = 1;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "hash");
+	skb.hash = 0;
+
+	skb.sk = (struct bpf_sock *)1;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_NEQ(err, 0, "sk");
+	skb.sk = 0;
+
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_OK(err, "test_run");
+	ASSERT_OK(tattr.retval, "test_run retval");
+	ASSERT_EQ(tattr.ctx_size_out, sizeof(skb), "ctx_size_out");
+
+	for (i = 0; i < 5; i++)
+		ASSERT_EQ(skb.cb[i], i + 2, "ctx_out_cb");
+	ASSERT_EQ(skb.priority, 7, "ctx_out_priority");
+	ASSERT_EQ(skb.ifindex, 1, "ctx_out_ifindex");
+	ASSERT_EQ(skb.ingress_ifindex, 11, "ctx_out_ingress_ifindex");
+	ASSERT_EQ(skb.tstamp, 8, "ctx_out_tstamp");
+	ASSERT_EQ(skb.mark, 10, "ctx_out_mark");
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/skb_helpers.c b/tools/testing/selftests/bpf/prog_tests/skb_helpers.c
new file mode 100644
index 000000000000..f7ee25f290f7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/skb_helpers.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_skb_helpers(void)
+{
+	struct __sk_buff skb = {
+		.wire_len = 100,
+		.gso_segs = 8,
+		.gso_size = 10,
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.ctx_in = &skb,
+		.ctx_size_in = sizeof(skb),
+		.ctx_out = &skb,
+		.ctx_size_out = sizeof(skb),
+	);
+	struct bpf_object *obj;
+	int err, prog_fd;
+
+	err = bpf_prog_test_load("./test_skb_helpers.bpf.o",
+				 BPF_PROG_TYPE_SCHED_CLS, &obj, &prog_fd);
+	if (!ASSERT_OK(err, "load"))
+		return;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/skb_load_bytes.c b/tools/testing/selftests/bpf/prog_tests/skb_load_bytes.c
new file mode 100644
index 000000000000..d7f83c0a40a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/skb_load_bytes.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "skb_load_bytes.skel.h"
+
+void test_skb_load_bytes(void)
+{
+	struct skb_load_bytes *skel;
+	int err, prog_fd, test_result;
+	struct __sk_buff skb = { 0 };
+
+	LIBBPF_OPTS(bpf_test_run_opts, tattr,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.ctx_in = &skb,
+		.ctx_size_in = sizeof(skb),
+	);
+
+	skel = skb_load_bytes__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	prog_fd = bpf_program__fd(skel->progs.skb_process);
+	if (!ASSERT_GE(prog_fd, 0, "prog_fd"))
+		goto out;
+
+	skel->bss->load_offset = (uint32_t)(-1);
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		goto out;
+	test_result = skel->bss->test_result;
+	if (!ASSERT_EQ(test_result, -EFAULT, "offset -1"))
+		goto out;
+
+	skel->bss->load_offset = (uint32_t)10;
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		goto out;
+	test_result = skel->bss->test_result;
+	if (!ASSERT_EQ(test_result, 0, "offset 10"))
+		goto out;
+
+out:
+	skb_load_bytes__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/skc_to_unix_sock.c b/tools/testing/selftests/bpf/prog_tests/skc_to_unix_sock.c
new file mode 100644
index 000000000000..3eefdfed1db9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/skc_to_unix_sock.c
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include <test_progs.h>
+#include <sys/un.h>
+#include "test_skc_to_unix_sock.skel.h"
+
+static const char *sock_path = "@skc_to_unix_sock";
+
+void test_skc_to_unix_sock(void)
+{
+	struct test_skc_to_unix_sock *skel;
+	struct sockaddr_un sockaddr;
+	int err, sockfd = 0;
+
+	skel = test_skc_to_unix_sock__open();
+	if (!ASSERT_OK_PTR(skel, "could not open BPF object"))
+		return;
+
+	skel->rodata->my_pid = getpid();
+
+	err = test_skc_to_unix_sock__load(skel);
+	if (!ASSERT_OK(err, "could not load BPF object"))
+		goto cleanup;
+
+	err = test_skc_to_unix_sock__attach(skel);
+	if (!ASSERT_OK(err, "could not attach BPF object"))
+		goto cleanup;
+
+	/* trigger unix_listen */
+	sockfd = socket(AF_UNIX, SOCK_STREAM, 0);
+	if (!ASSERT_GT(sockfd, 0, "socket failed"))
+		goto cleanup;
+
+	memset(&sockaddr, 0, sizeof(sockaddr));
+	sockaddr.sun_family = AF_UNIX;
+	strncpy(sockaddr.sun_path, sock_path, strlen(sock_path));
+	sockaddr.sun_path[0] = '\0';
+
+	err = bind(sockfd, (struct sockaddr *)&sockaddr, sizeof(sockaddr));
+	if (!ASSERT_OK(err, "bind failed"))
+		goto cleanup;
+
+	err = listen(sockfd, 1);
+	if (!ASSERT_OK(err, "listen failed"))
+		goto cleanup;
+
+	ASSERT_EQ(strcmp(skel->bss->path, sock_path), 0, "bpf_skc_to_unix_sock failed");
+
+cleanup:
+	if (sockfd)
+		close(sockfd);
+	test_skc_to_unix_sock__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/skeleton.c b/tools/testing/selftests/bpf/prog_tests/skeleton.c
new file mode 100644
index 000000000000..bc6817aee9aa
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/skeleton.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <test_progs.h>
+#include <sys/mman.h>
+
+struct s {
+	int a;
+	long long b;
+} __attribute__((packed));
+
+#include "test_skeleton.skel.h"
+
+void test_skeleton(void)
+{
+	int duration = 0, err;
+	struct test_skeleton* skel;
+	struct test_skeleton__bss *bss;
+	struct test_skeleton__data *data;
+	struct test_skeleton__data_dyn *data_dyn;
+	struct test_skeleton__rodata *rodata;
+	struct test_skeleton__rodata_dyn *rodata_dyn;
+	struct test_skeleton__kconfig *kcfg;
+	const void *elf_bytes;
+	size_t elf_bytes_sz = 0;
+	void *m;
+	int i, fd;
+
+	skel = test_skeleton__open();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	if (CHECK(skel->kconfig, "skel_kconfig", "kconfig is mmaped()!\n"))
+		goto cleanup;
+
+	bss = skel->bss;
+	data = skel->data;
+	data_dyn = skel->data_dyn;
+	rodata = skel->rodata;
+	rodata_dyn = skel->rodata_dyn;
+
+	ASSERT_STREQ(bpf_map__name(skel->maps.rodata_dyn), ".rodata.dyn", "rodata_dyn_name");
+	ASSERT_STREQ(bpf_map__name(skel->maps.data_dyn), ".data.dyn", "data_dyn_name");
+
+	/* validate values are pre-initialized correctly */
+	CHECK(data->in1 != -1, "in1", "got %d != exp %d\n", data->in1, -1);
+	CHECK(data->out1 != -1, "out1", "got %d != exp %d\n", data->out1, -1);
+	CHECK(data->in2 != -1, "in2", "got %lld != exp %lld\n", data->in2, -1LL);
+	CHECK(data->out2 != -1, "out2", "got %lld != exp %lld\n", data->out2, -1LL);
+
+	CHECK(bss->in3 != 0, "in3", "got %d != exp %d\n", bss->in3, 0);
+	CHECK(bss->out3 != 0, "out3", "got %d != exp %d\n", bss->out3, 0);
+	CHECK(bss->in4 != 0, "in4", "got %lld != exp %lld\n", bss->in4, 0LL);
+	CHECK(bss->out4 != 0, "out4", "got %lld != exp %lld\n", bss->out4, 0LL);
+
+	CHECK(rodata->in.in6 != 0, "in6", "got %d != exp %d\n", rodata->in.in6, 0);
+	CHECK(bss->out6 != 0, "out6", "got %d != exp %d\n", bss->out6, 0);
+
+	ASSERT_EQ(rodata_dyn->in_dynarr_sz, 0, "in_dynarr_sz");
+	for (i = 0; i < 4; i++)
+		ASSERT_EQ(rodata_dyn->in_dynarr[i], -(i + 1), "in_dynarr");
+	for (i = 0; i < 4; i++)
+		ASSERT_EQ(data_dyn->out_dynarr[i], i + 1, "out_dynarr");
+
+	/* validate we can pre-setup global variables, even in .bss */
+	data->in1 = 10;
+	data->in2 = 11;
+	bss->in3 = 12;
+	bss->in4 = 13;
+	rodata->in.in6 = 14;
+
+	rodata_dyn->in_dynarr_sz = 4;
+	for (i = 0; i < 4; i++)
+		rodata_dyn->in_dynarr[i] = i + 10;
+
+	err = test_skeleton__load(skel);
+	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
+		goto cleanup;
+
+	/* validate pre-setup values are still there */
+	CHECK(data->in1 != 10, "in1", "got %d != exp %d\n", data->in1, 10);
+	CHECK(data->in2 != 11, "in2", "got %lld != exp %lld\n", data->in2, 11LL);
+	CHECK(bss->in3 != 12, "in3", "got %d != exp %d\n", bss->in3, 12);
+	CHECK(bss->in4 != 13, "in4", "got %lld != exp %lld\n", bss->in4, 13LL);
+	CHECK(rodata->in.in6 != 14, "in6", "got %d != exp %d\n", rodata->in.in6, 14);
+
+	ASSERT_EQ(rodata_dyn->in_dynarr_sz, 4, "in_dynarr_sz");
+	for (i = 0; i < 4; i++)
+		ASSERT_EQ(rodata_dyn->in_dynarr[i], i + 10, "in_dynarr");
+
+	/* now set new values and attach to get them into outX variables */
+	data->in1 = 1;
+	data->in2 = 2;
+	bss->in3 = 3;
+	bss->in4 = 4;
+	bss->in5.a = 5;
+	bss->in5.b = 6;
+	kcfg = skel->kconfig;
+
+	skel->data_read_mostly->read_mostly_var = 123;
+
+	err = test_skeleton__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	CHECK(data->out1 != 1, "res1", "got %d != exp %d\n", data->out1, 1);
+	CHECK(data->out2 != 2, "res2", "got %lld != exp %d\n", data->out2, 2);
+	CHECK(bss->out3 != 3, "res3", "got %d != exp %d\n", (int)bss->out3, 3);
+	CHECK(bss->out4 != 4, "res4", "got %lld != exp %d\n", bss->out4, 4);
+	CHECK(bss->out5.a != 5, "res5", "got %d != exp %d\n", bss->out5.a, 5);
+	CHECK(bss->out5.b != 6, "res6", "got %lld != exp %d\n", bss->out5.b, 6);
+	CHECK(bss->out6 != 14, "res7", "got %d != exp %d\n", bss->out6, 14);
+
+	CHECK(bss->bpf_syscall != kcfg->CONFIG_BPF_SYSCALL, "ext1",
+	      "got %d != exp %d\n", bss->bpf_syscall, kcfg->CONFIG_BPF_SYSCALL);
+	CHECK(bss->kern_ver != kcfg->LINUX_KERNEL_VERSION, "ext2",
+	      "got %d != exp %d\n", bss->kern_ver, kcfg->LINUX_KERNEL_VERSION);
+
+	for (i = 0; i < 4; i++)
+		ASSERT_EQ(data_dyn->out_dynarr[i], i + 10, "out_dynarr");
+
+	ASSERT_EQ(skel->bss->out_mostly_var, 123, "out_mostly_var");
+
+	ASSERT_EQ(bss->huge_arr[ARRAY_SIZE(bss->huge_arr) - 1], 123, "huge_arr");
+
+	fd = bpf_map__fd(skel->maps.data_non_mmapable);
+	m = mmap(NULL, getpagesize(), PROT_READ, MAP_SHARED, fd, 0);
+	if (!ASSERT_EQ(m, MAP_FAILED, "unexpected_mmap_success"))
+		munmap(m, getpagesize());
+
+	ASSERT_EQ(bpf_map__map_flags(skel->maps.data_non_mmapable), 0, "non_mmap_flags");
+
+	elf_bytes = test_skeleton__elf_bytes(&elf_bytes_sz);
+	ASSERT_OK_PTR(elf_bytes, "elf_bytes");
+	ASSERT_GE(elf_bytes_sz, 0, "elf_bytes_sz");
+
+cleanup:
+	test_skeleton__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/testing/selftests/bpf/prog_tests/snprintf.c
new file mode 100644
index 000000000000..594441acb707
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Google LLC. */
+
+#include <test_progs.h>
+#include "test_snprintf.skel.h"
+#include "test_snprintf_single.skel.h"
+
+#define EXP_NUM_OUT  "-8 9 96 -424242 1337 DABBAD00"
+#define EXP_NUM_RET  sizeof(EXP_NUM_OUT)
+
+#define EXP_IP_OUT   "127.000.000.001 0000:0000:0000:0000:0000:0000:0000:0001"
+#define EXP_IP_RET   sizeof(EXP_IP_OUT)
+
+/* The third specifier, %pB, depends on compiler inlining so don't check it */
+#define EXP_SYM_OUT  "schedule schedule+0x0/"
+#define MIN_SYM_RET  sizeof(EXP_SYM_OUT)
+
+/* The third specifier, %p, is a hashed pointer which changes on every reboot */
+#define EXP_ADDR_OUT "0000000000000000 ffff00000add4e55 "
+#define EXP_ADDR_RET sizeof(EXP_ADDR_OUT "unknownhashedptr")
+
+#define EXP_STR_OUT  "str1         a  b c      d e longstr"
+#define EXP_STR_RET  sizeof(EXP_STR_OUT)
+
+#define EXP_OVER_OUT "%over"
+#define EXP_OVER_RET 10
+
+#define EXP_PAD_OUT "    4 000"
+#define EXP_PAD_RET 900007
+
+#define EXP_NO_ARG_OUT "simple case"
+#define EXP_NO_ARG_RET 12
+
+#define EXP_NO_BUF_RET 29
+
+static void test_snprintf_positive(void)
+{
+	char exp_addr_out[] = EXP_ADDR_OUT;
+	char exp_sym_out[]  = EXP_SYM_OUT;
+	struct test_snprintf *skel;
+
+	skel = test_snprintf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	if (!ASSERT_OK(test_snprintf__attach(skel), "skel_attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	ASSERT_STREQ(skel->bss->num_out, EXP_NUM_OUT, "num_out");
+	ASSERT_EQ(skel->bss->num_ret, EXP_NUM_RET, "num_ret");
+
+	ASSERT_STREQ(skel->bss->ip_out, EXP_IP_OUT, "ip_out");
+	ASSERT_EQ(skel->bss->ip_ret, EXP_IP_RET, "ip_ret");
+
+	ASSERT_OK(memcmp(skel->bss->sym_out, exp_sym_out,
+			 sizeof(exp_sym_out) - 1), "sym_out");
+	ASSERT_LT(MIN_SYM_RET, skel->bss->sym_ret, "sym_ret");
+
+	ASSERT_OK(memcmp(skel->bss->addr_out, exp_addr_out,
+			 sizeof(exp_addr_out) - 1), "addr_out");
+	ASSERT_EQ(skel->bss->addr_ret, EXP_ADDR_RET, "addr_ret");
+
+	ASSERT_STREQ(skel->bss->str_out, EXP_STR_OUT, "str_out");
+	ASSERT_EQ(skel->bss->str_ret, EXP_STR_RET, "str_ret");
+
+	ASSERT_STREQ(skel->bss->over_out, EXP_OVER_OUT, "over_out");
+	ASSERT_EQ(skel->bss->over_ret, EXP_OVER_RET, "over_ret");
+
+	ASSERT_STREQ(skel->bss->pad_out, EXP_PAD_OUT, "pad_out");
+	ASSERT_EQ(skel->bss->pad_ret, EXP_PAD_RET, "pad_ret");
+
+	ASSERT_STREQ(skel->bss->noarg_out, EXP_NO_ARG_OUT, "no_arg_out");
+	ASSERT_EQ(skel->bss->noarg_ret, EXP_NO_ARG_RET, "no_arg_ret");
+
+	ASSERT_EQ(skel->bss->nobuf_ret, EXP_NO_BUF_RET, "no_buf_ret");
+
+cleanup:
+	test_snprintf__destroy(skel);
+}
+
+/* Loads an eBPF object calling bpf_snprintf with up to 10 characters of fmt */
+static int load_single_snprintf(char *fmt)
+{
+	struct test_snprintf_single *skel;
+	int ret;
+
+	skel = test_snprintf_single__open();
+	if (!skel)
+		return -EINVAL;
+
+	memcpy(skel->rodata->fmt, fmt, MIN(strlen(fmt) + 1, 10));
+
+	ret = test_snprintf_single__load(skel);
+	test_snprintf_single__destroy(skel);
+
+	return ret;
+}
+
+static void test_snprintf_negative(void)
+{
+	ASSERT_OK(load_single_snprintf("valid %d"), "valid usage");
+
+	ASSERT_ERR(load_single_snprintf("0123456789"), "no terminating zero");
+	ASSERT_ERR(load_single_snprintf("%d %d"), "too many specifiers");
+	ASSERT_ERR(load_single_snprintf("%pi5"), "invalid specifier 1");
+	ASSERT_ERR(load_single_snprintf("%a"), "invalid specifier 2");
+	ASSERT_ERR(load_single_snprintf("%"), "invalid specifier 3");
+	ASSERT_ERR(load_single_snprintf("%12345678"), "invalid specifier 4");
+	ASSERT_ERR(load_single_snprintf("%--------"), "invalid specifier 5");
+	ASSERT_ERR(load_single_snprintf("%lc"), "invalid specifier 6");
+	ASSERT_ERR(load_single_snprintf("%llc"), "invalid specifier 7");
+	ASSERT_ERR(load_single_snprintf("\x80"), "non ascii character");
+	ASSERT_ERR(load_single_snprintf("\x1"), "non printable character");
+	ASSERT_ERR(load_single_snprintf("%p%"), "invalid specifier 8");
+	ASSERT_ERR(load_single_snprintf("%s%"), "invalid specifier 9");
+}
+
+void test_snprintf(void)
+{
+	if (test__start_subtest("snprintf_positive"))
+		test_snprintf_positive();
+	if (test__start_subtest("snprintf_negative"))
+		test_snprintf_negative();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf_btf.c b/tools/testing/selftests/bpf/prog_tests/snprintf_btf.c
new file mode 100644
index 000000000000..dd41b826be30
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/snprintf_btf.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <linux/btf.h>
+#include "netif_receive_skb.skel.h"
+
+/* Demonstrate that bpf_snprintf_btf succeeds and that various data types
+ * are formatted correctly.
+ */
+void serial_test_snprintf_btf(void)
+{
+	struct netif_receive_skb *skel;
+	struct netif_receive_skb__bss *bss;
+	int err, duration = 0;
+
+	skel = netif_receive_skb__open();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	err = netif_receive_skb__load(skel);
+	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
+		goto cleanup;
+
+	bss = skel->bss;
+
+	err = netif_receive_skb__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	/* generate receive event */
+	err = system("ping -c 1 127.0.0.1 > /dev/null");
+	if (CHECK(err, "system", "ping failed: %d\n", err))
+		goto cleanup;
+
+	if (bss->skip) {
+		printf("%s:SKIP:no __builtin_btf_type_id\n", __func__);
+		test__skip();
+		goto cleanup;
+	}
+
+	/*
+	 * Make sure netif_receive_skb program was triggered
+	 * and it set expected return values from bpf_trace_printk()s
+	 * and all tests ran.
+	 */
+	if (!ASSERT_GT(bss->ret, 0, "bpf_snprintf_ret"))
+		goto cleanup;
+
+	if (CHECK(bss->ran_subtests == 0, "check if subtests ran",
+		  "no subtests ran, did BPF program run?"))
+		goto cleanup;
+
+	if (CHECK(bss->num_subtests != bss->ran_subtests,
+		  "check all subtests ran",
+		  "only ran %d of %d tests\n", bss->num_subtests,
+		  bss->ran_subtests))
+		goto cleanup;
+
+cleanup:
+	netif_receive_skb__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_addr.c b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
new file mode 100644
index 000000000000..b2efabbed220
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_addr.c
@@ -0,0 +1,2660 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <sys/un.h>
+
+#include "test_progs.h"
+
+#include "sock_addr_kern.skel.h"
+#include "bind4_prog.skel.h"
+#include "bind6_prog.skel.h"
+#include "connect_unix_prog.skel.h"
+#include "connect4_prog.skel.h"
+#include "connect6_prog.skel.h"
+#include "sendmsg4_prog.skel.h"
+#include "sendmsg6_prog.skel.h"
+#include "recvmsg4_prog.skel.h"
+#include "recvmsg6_prog.skel.h"
+#include "sendmsg_unix_prog.skel.h"
+#include "recvmsg_unix_prog.skel.h"
+#include "getsockname4_prog.skel.h"
+#include "getsockname6_prog.skel.h"
+#include "getsockname_unix_prog.skel.h"
+#include "getpeername4_prog.skel.h"
+#include "getpeername6_prog.skel.h"
+#include "getpeername_unix_prog.skel.h"
+#include "network_helpers.h"
+
+#define TEST_NS                 "sock_addr"
+#define TEST_IF_PREFIX          "test_sock_addr"
+#define TEST_IPV4               "127.0.0.4"
+#define TEST_IPV6               "::6"
+
+#define SERV4_IP                "192.168.1.254"
+#define SERV4_REWRITE_IP        "127.0.0.1"
+#define SRC4_IP                 "172.16.0.1"
+#define SRC4_REWRITE_IP         TEST_IPV4
+#define SERV4_PORT              4040
+#define SERV4_REWRITE_PORT      4444
+
+#define SERV6_IP                "face:b00c:1234:5678::abcd"
+#define SERV6_REWRITE_IP        "::1"
+#define SERV6_V4MAPPED_IP       "::ffff:192.168.0.4"
+#define SRC6_IP                 "::1"
+#define SRC6_REWRITE_IP         TEST_IPV6
+#define WILDCARD6_IP            "::"
+#define SERV6_PORT              6060
+#define SERV6_REWRITE_PORT      6666
+
+#define SERVUN_ADDRESS         "bpf_cgroup_unix_test"
+#define SERVUN_REWRITE_ADDRESS "bpf_cgroup_unix_test_rewrite"
+#define SRCUN_ADDRESS          "bpf_cgroup_unix_test_src"
+
+#define save_errno_do(op) ({ int __save = errno; op; errno = __save; })
+
+enum sock_addr_test_type {
+	SOCK_ADDR_TEST_BIND,
+	SOCK_ADDR_TEST_CONNECT,
+	SOCK_ADDR_TEST_SENDMSG,
+	SOCK_ADDR_TEST_RECVMSG,
+	SOCK_ADDR_TEST_GETSOCKNAME,
+	SOCK_ADDR_TEST_GETPEERNAME,
+};
+
+typedef void *(*load_fn)(int cgroup_fd,
+			 enum bpf_attach_type attach_type,
+			 bool expect_reject);
+typedef void (*destroy_fn)(void *skel);
+
+static int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len,
+		    const struct sockaddr_storage *addr2, socklen_t addr2_len,
+		    bool cmp_port);
+
+struct init_sock_args {
+	int af;
+	int type;
+};
+
+struct addr_args {
+	char addr[sizeof(struct sockaddr_storage)];
+	int addrlen;
+};
+
+struct sendmsg_args {
+	struct addr_args addr;
+	char msg[10];
+	int msglen;
+};
+
+static struct sock_addr_kern *skel;
+
+static int run_bpf_prog(const char *prog_name, void *ctx, int ctx_size)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_program *prog;
+	int prog_fd, err;
+
+	topts.ctx_in = ctx;
+	topts.ctx_size_in = ctx_size;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto err;
+
+	prog_fd = bpf_program__fd(prog);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, prog_name))
+		goto err;
+
+	err = topts.retval;
+	errno = -topts.retval;
+	goto out;
+err:
+	err = -1;
+out:
+	return err;
+}
+
+static int kernel_init_sock(int af, int type, int protocol)
+{
+	struct init_sock_args args = {
+		.af = af,
+		.type = type,
+	};
+
+	return run_bpf_prog("init_sock", &args, sizeof(args));
+}
+
+static int kernel_close_sock(int fd)
+{
+	return run_bpf_prog("close_sock", NULL, 0);
+}
+
+static int sock_addr_op(const char *name, struct sockaddr *addr,
+			socklen_t *addrlen, bool expect_change)
+{
+	struct addr_args args;
+	int err;
+
+	if (addrlen)
+		args.addrlen = *addrlen;
+
+	if (addr)
+		memcpy(&args.addr, addr, *addrlen);
+
+	err = run_bpf_prog(name, &args, sizeof(args));
+
+	if (!expect_change && addr)
+		if (!ASSERT_EQ(cmp_addr((struct sockaddr_storage *)addr,
+					*addrlen,
+					(struct sockaddr_storage *)&args.addr,
+					args.addrlen, 1),
+			       0, "address_param_modified"))
+			return -1;
+
+	if (addrlen)
+		*addrlen = args.addrlen;
+
+	if (addr)
+		memcpy(addr, &args.addr, *addrlen);
+
+	return err;
+}
+
+static int send_msg_op(const char *name, struct sockaddr *addr,
+		       socklen_t addrlen, const char *msg, int msglen)
+{
+	struct sendmsg_args args;
+	int err;
+
+	memset(&args, 0, sizeof(args));
+	memcpy(&args.addr.addr, addr, addrlen);
+	args.addr.addrlen = addrlen;
+	memcpy(args.msg, msg, msglen);
+	args.msglen = msglen;
+
+	err = run_bpf_prog(name, &args, sizeof(args));
+
+	if (!ASSERT_EQ(cmp_addr((struct sockaddr_storage *)addr,
+				addrlen,
+				(struct sockaddr_storage *)&args.addr.addr,
+				args.addr.addrlen, 1),
+		       0, "address_param_modified"))
+		return -1;
+
+	return err;
+}
+
+static int kernel_connect(struct sockaddr *addr, socklen_t addrlen)
+{
+	return sock_addr_op("kernel_connect", addr, &addrlen, false);
+}
+
+static int kernel_bind(int fd, struct sockaddr *addr, socklen_t addrlen)
+{
+	return sock_addr_op("kernel_bind", addr, &addrlen, false);
+}
+
+static int kernel_listen(void)
+{
+	return sock_addr_op("kernel_listen", NULL, NULL, false);
+}
+
+static int kernel_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
+			  char *msg, int msglen)
+{
+	return send_msg_op("kernel_sendmsg", addr, addrlen, msg, msglen);
+}
+
+static int sock_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
+			char *msg, int msglen)
+{
+	return send_msg_op("sock_sendmsg", addr, addrlen, msg, msglen);
+}
+
+static int kernel_getsockname(int fd, struct sockaddr *addr, socklen_t *addrlen)
+{
+	return sock_addr_op("kernel_getsockname", addr, addrlen, true);
+}
+
+static int kernel_getpeername(int fd, struct sockaddr *addr, socklen_t *addrlen)
+{
+	return sock_addr_op("kernel_getpeername", addr, addrlen, true);
+}
+
+int kernel_connect_to_addr(int type, const struct sockaddr_storage *addr, socklen_t addrlen,
+			   const struct network_helper_opts *opts)
+{
+	int err;
+
+	if (!ASSERT_OK(kernel_init_sock(addr->ss_family, type, 0),
+		       "kernel_init_sock"))
+		goto err;
+
+	if (kernel_connect((struct sockaddr *)addr, addrlen) < 0)
+		goto err;
+
+	/* Test code expects a "file descriptor" on success. */
+	err = 1;
+	goto out;
+err:
+	err = -1;
+	save_errno_do(ASSERT_OK(kernel_close_sock(0), "kernel_close_sock"));
+out:
+	return err;
+}
+
+int kernel_start_server(int family, int type, const char *addr_str, __u16 port,
+			int timeout_ms)
+{
+	struct sockaddr_storage addr;
+	socklen_t addrlen;
+	int err;
+
+	if (!ASSERT_OK(kernel_init_sock(family, type, 0), "kernel_init_sock"))
+		goto err;
+
+	if (make_sockaddr(family, addr_str, port, &addr, &addrlen))
+		goto err;
+
+	if (kernel_bind(0, (struct sockaddr *)&addr, addrlen) < 0)
+		goto err;
+
+	if (type == SOCK_STREAM) {
+		if (!ASSERT_OK(kernel_listen(), "kernel_listen"))
+			goto err;
+	}
+
+	/* Test code expects a "file descriptor" on success. */
+	err = 1;
+	goto out;
+err:
+	err = -1;
+	save_errno_do(ASSERT_OK(kernel_close_sock(0), "kernel_close_sock"));
+out:
+	return err;
+}
+
+struct sock_ops {
+	int (*connect_to_addr)(int type, const struct sockaddr_storage *addr,
+			       socklen_t addrlen,
+			       const struct network_helper_opts *opts);
+	int (*start_server)(int family, int type, const char *addr_str,
+			    __u16 port, int timeout_ms);
+	int (*socket)(int famil, int type, int protocol);
+	int (*bind)(int fd, struct sockaddr *addr, socklen_t addrlen);
+	int (*getsockname)(int fd, struct sockaddr *addr, socklen_t *addrlen);
+	int (*getpeername)(int fd, struct sockaddr *addr, socklen_t *addrlen);
+	int (*sendmsg)(int fd, struct sockaddr *addr, socklen_t addrlen,
+		       char *msg, int msglen);
+	int (*close)(int fd);
+};
+
+static int user_sendmsg(int fd, struct sockaddr *addr, socklen_t addrlen,
+			char *msg, int msglen)
+{
+	struct msghdr hdr;
+	struct iovec iov;
+
+	memset(&iov, 0, sizeof(iov));
+	iov.iov_base = msg;
+	iov.iov_len = msglen;
+
+	memset(&hdr, 0, sizeof(hdr));
+	hdr.msg_name = (void *)addr;
+	hdr.msg_namelen = addrlen;
+	hdr.msg_iov = &iov;
+	hdr.msg_iovlen = 1;
+
+	return sendmsg(fd, &hdr, 0);
+}
+
+static int user_bind(int fd, struct sockaddr *addr, socklen_t addrlen)
+{
+	return bind(fd, (const struct sockaddr *)addr, addrlen);
+}
+
+struct sock_ops user_ops = {
+	.connect_to_addr = connect_to_addr,
+	.start_server = start_server,
+	.socket = socket,
+	.bind = user_bind,
+	.getsockname = getsockname,
+	.getpeername = getpeername,
+	.sendmsg = user_sendmsg,
+	.close = close,
+};
+
+struct sock_ops kern_ops_sock_sendmsg = {
+	.connect_to_addr = kernel_connect_to_addr,
+	.start_server = kernel_start_server,
+	.socket = kernel_init_sock,
+	.bind = kernel_bind,
+	.getsockname = kernel_getsockname,
+	.getpeername = kernel_getpeername,
+	.sendmsg = sock_sendmsg,
+	.close = kernel_close_sock,
+};
+
+struct sock_ops kern_ops_kernel_sendmsg = {
+	.connect_to_addr = kernel_connect_to_addr,
+	.start_server = kernel_start_server,
+	.socket = kernel_init_sock,
+	.bind = kernel_bind,
+	.getsockname = kernel_getsockname,
+	.getpeername = kernel_getpeername,
+	.sendmsg = kernel_sendmsg,
+	.close = kernel_close_sock,
+};
+
+struct sock_addr_test {
+	enum sock_addr_test_type type;
+	const char *name;
+	/* BPF prog properties */
+	load_fn loadfn;
+	destroy_fn destroyfn;
+	enum bpf_attach_type attach_type;
+	/* Socket operations */
+	struct sock_ops *ops;
+	/* Socket properties */
+	int socket_family;
+	int socket_type;
+	/* IP:port pairs for BPF prog to override */
+	const char *requested_addr;
+	unsigned short requested_port;
+	const char *expected_addr;
+	unsigned short expected_port;
+	const char *expected_src_addr;
+	/* Expected test result */
+	enum {
+		LOAD_REJECT,
+		ATTACH_REJECT,
+		SYSCALL_EPERM,
+		SYSCALL_ENOTSUPP,
+		SUCCESS,
+	} expected_result;
+};
+
+#define BPF_SKEL_FUNCS_RAW(skel_name, prog_name) \
+static void *prog_name##_load_raw(int cgroup_fd, \
+				  enum bpf_attach_type attach_type, \
+				  bool expect_reject) \
+{ \
+	struct skel_name *skel = skel_name##__open(); \
+	int prog_fd = -1; \
+	if (!ASSERT_OK_PTR(skel, "skel_open")) \
+		goto cleanup; \
+	if (!ASSERT_OK(skel_name##__load(skel), "load")) \
+		goto cleanup; \
+	prog_fd = bpf_program__fd(skel->progs.prog_name); \
+	if (!ASSERT_GT(prog_fd, 0, "prog_fd")) \
+		goto cleanup; \
+	if (bpf_prog_attach(prog_fd, cgroup_fd, attach_type, \
+			      BPF_F_ALLOW_OVERRIDE), "bpf_prog_attach") { \
+		ASSERT_TRUE(expect_reject, "unexpected rejection"); \
+		goto cleanup; \
+	} \
+	if (!ASSERT_FALSE(expect_reject, "expected rejection")) \
+		goto cleanup; \
+cleanup: \
+	if (prog_fd > 0) \
+		bpf_prog_detach(cgroup_fd, attach_type); \
+	skel_name##__destroy(skel); \
+	return NULL; \
+} \
+static void prog_name##_destroy_raw(void *progfd) \
+{ \
+	/* No-op. *_load_raw does all cleanup. */ \
+} \
+
+#define BPF_SKEL_FUNCS(skel_name, prog_name) \
+static void *prog_name##_load(int cgroup_fd, \
+			      enum bpf_attach_type attach_type, \
+			      bool expect_reject) \
+{ \
+	struct skel_name *skel = skel_name##__open(); \
+	if (!ASSERT_OK_PTR(skel, "skel_open")) \
+		goto cleanup; \
+	if (!ASSERT_OK(bpf_program__set_expected_attach_type(skel->progs.prog_name, \
+							     attach_type), \
+		       "set_expected_attach_type")) \
+		goto cleanup; \
+	if (skel_name##__load(skel)) { \
+		ASSERT_TRUE(expect_reject, "unexpected rejection"); \
+		goto cleanup; \
+	} \
+	if (!ASSERT_FALSE(expect_reject, "expected rejection")) \
+		goto cleanup; \
+	skel->links.prog_name = bpf_program__attach_cgroup( \
+		skel->progs.prog_name, cgroup_fd); \
+	if (!ASSERT_OK_PTR(skel->links.prog_name, "prog_attach")) \
+		goto cleanup; \
+	return skel; \
+cleanup: \
+	skel_name##__destroy(skel); \
+	return NULL; \
+} \
+static void prog_name##_destroy(void *skel) \
+{ \
+	skel_name##__destroy(skel); \
+}
+
+BPF_SKEL_FUNCS(bind4_prog, bind_v4_prog);
+BPF_SKEL_FUNCS_RAW(bind4_prog, bind_v4_prog);
+BPF_SKEL_FUNCS(bind4_prog, bind_v4_deny_prog);
+BPF_SKEL_FUNCS(bind6_prog, bind_v6_prog);
+BPF_SKEL_FUNCS_RAW(bind6_prog, bind_v6_prog);
+BPF_SKEL_FUNCS(bind6_prog, bind_v6_deny_prog);
+BPF_SKEL_FUNCS(connect4_prog, connect_v4_prog);
+BPF_SKEL_FUNCS_RAW(connect4_prog, connect_v4_prog);
+BPF_SKEL_FUNCS(connect4_prog, connect_v4_deny_prog);
+BPF_SKEL_FUNCS(connect6_prog, connect_v6_prog);
+BPF_SKEL_FUNCS_RAW(connect6_prog, connect_v6_prog);
+BPF_SKEL_FUNCS(connect6_prog, connect_v6_deny_prog);
+BPF_SKEL_FUNCS(connect_unix_prog, connect_unix_prog);
+BPF_SKEL_FUNCS_RAW(connect_unix_prog, connect_unix_prog);
+BPF_SKEL_FUNCS(connect_unix_prog, connect_unix_deny_prog);
+BPF_SKEL_FUNCS(sendmsg4_prog, sendmsg_v4_prog);
+BPF_SKEL_FUNCS_RAW(sendmsg4_prog, sendmsg_v4_prog);
+BPF_SKEL_FUNCS(sendmsg4_prog, sendmsg_v4_deny_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_prog);
+BPF_SKEL_FUNCS_RAW(sendmsg6_prog, sendmsg_v6_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_deny_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_preserve_dst_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_v4mapped_prog);
+BPF_SKEL_FUNCS(sendmsg6_prog, sendmsg_v6_wildcard_prog);
+BPF_SKEL_FUNCS(sendmsg_unix_prog, sendmsg_unix_prog);
+BPF_SKEL_FUNCS_RAW(sendmsg_unix_prog, sendmsg_unix_prog);
+BPF_SKEL_FUNCS(sendmsg_unix_prog, sendmsg_unix_deny_prog);
+BPF_SKEL_FUNCS(recvmsg4_prog, recvmsg4_prog);
+BPF_SKEL_FUNCS_RAW(recvmsg4_prog, recvmsg4_prog);
+BPF_SKEL_FUNCS(recvmsg6_prog, recvmsg6_prog);
+BPF_SKEL_FUNCS_RAW(recvmsg6_prog, recvmsg6_prog);
+BPF_SKEL_FUNCS(recvmsg_unix_prog, recvmsg_unix_prog);
+BPF_SKEL_FUNCS_RAW(recvmsg_unix_prog, recvmsg_unix_prog);
+BPF_SKEL_FUNCS(getsockname_unix_prog, getsockname_unix_prog);
+BPF_SKEL_FUNCS_RAW(getsockname_unix_prog, getsockname_unix_prog);
+BPF_SKEL_FUNCS(getsockname4_prog, getsockname_v4_prog);
+BPF_SKEL_FUNCS_RAW(getsockname4_prog, getsockname_v4_prog);
+BPF_SKEL_FUNCS(getsockname6_prog, getsockname_v6_prog);
+BPF_SKEL_FUNCS_RAW(getsockname6_prog, getsockname_v6_prog);
+BPF_SKEL_FUNCS(getpeername_unix_prog, getpeername_unix_prog);
+BPF_SKEL_FUNCS_RAW(getpeername_unix_prog, getpeername_unix_prog);
+BPF_SKEL_FUNCS(getpeername4_prog, getpeername_v4_prog);
+BPF_SKEL_FUNCS_RAW(getpeername4_prog, getpeername_v4_prog);
+BPF_SKEL_FUNCS(getpeername6_prog, getpeername_v6_prog);
+BPF_SKEL_FUNCS_RAW(getpeername6_prog, getpeername_v6_prog);
+
+static struct sock_addr_test tests[] = {
+	/* bind - system calls */
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: bind (stream)",
+		bind_v4_prog_load,
+		bind_v4_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: bind deny (stream)",
+		bind_v4_deny_prog_load,
+		bind_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: bind (dgram)",
+		bind_v4_prog_load,
+		bind_v4_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: bind deny (dgram)",
+		bind_v4_deny_prog_load,
+		bind_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: load prog with wrong expected attach type",
+		bind_v4_prog_load,
+		bind_v4_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: attach prog with wrong attach type",
+		bind_v4_prog_load_raw,
+		bind_v4_prog_destroy_raw,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: bind (stream)",
+		bind_v6_prog_load,
+		bind_v6_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: bind deny (stream)",
+		bind_v6_deny_prog_load,
+		bind_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: bind (dgram)",
+		bind_v6_prog_load,
+		bind_v6_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: bind deny (dgram)",
+		bind_v6_deny_prog_load,
+		bind_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: load prog with wrong expected attach type",
+		bind_v6_prog_load,
+		bind_v6_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: attach prog with wrong attach type",
+		bind_v6_prog_load_raw,
+		bind_v6_prog_destroy_raw,
+		BPF_CGROUP_INET4_BIND,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+
+	/* bind - kernel calls */
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: kernel_bind (stream)",
+		bind_v4_prog_load,
+		bind_v4_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: kernel_bind deny (stream)",
+		bind_v4_deny_prog_load,
+		bind_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: kernel_bind (dgram)",
+		bind_v4_prog_load,
+		bind_v4_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind4: kernel_bind deny (dgram)",
+		bind_v4_deny_prog_load,
+		bind_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: kernel_bind (stream)",
+		bind_v6_prog_load,
+		bind_v6_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: kernel_bind deny (stream)",
+		bind_v6_deny_prog_load,
+		bind_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: kernel_bind (dgram)",
+		bind_v6_prog_load,
+		bind_v6_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_BIND,
+		"bind6: kernel_bind deny (dgram)",
+		bind_v6_deny_prog_load,
+		bind_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_BIND,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		NULL,
+		SYSCALL_EPERM,
+	},
+
+	/* connect - system calls */
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: connect (stream)",
+		connect_v4_prog_load,
+		connect_v4_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: connect deny (stream)",
+		connect_v4_deny_prog_load,
+		connect_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: connect (dgram)",
+		connect_v4_prog_load,
+		connect_v4_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: connect deny (dgram)",
+		connect_v4_deny_prog_load,
+		connect_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: load prog with wrong expected attach type",
+		connect_v4_prog_load,
+		connect_v4_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: attach prog with wrong attach type",
+		connect_v4_prog_load_raw,
+		connect_v4_prog_destroy_raw,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: connect (stream)",
+		connect_v6_prog_load,
+		connect_v6_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: connect deny (stream)",
+		connect_v6_deny_prog_load,
+		connect_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: connect (dgram)",
+		connect_v6_prog_load,
+		connect_v6_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: connect deny (dgram)",
+		connect_v6_deny_prog_load,
+		connect_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: load prog with wrong expected attach type",
+		connect_v6_prog_load,
+		connect_v6_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: attach prog with wrong attach type",
+		connect_v6_prog_load_raw,
+		connect_v6_prog_destroy_raw,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect_unix: connect (stream)",
+		connect_unix_prog_load,
+		connect_unix_prog_destroy,
+		BPF_CGROUP_UNIX_CONNECT,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect_unix: connect deny (stream)",
+		connect_unix_deny_prog_load,
+		connect_unix_deny_prog_destroy,
+		BPF_CGROUP_UNIX_CONNECT,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect_unix: attach prog with wrong attach type",
+		connect_unix_prog_load_raw,
+		connect_unix_prog_destroy_raw,
+		BPF_CGROUP_INET4_CONNECT,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+
+	/* connect - kernel calls */
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: kernel_connect (stream)",
+		connect_v4_prog_load,
+		connect_v4_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: kernel_connect deny (stream)",
+		connect_v4_deny_prog_load,
+		connect_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: kernel_connect (dgram)",
+		connect_v4_prog_load,
+		connect_v4_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect4: kernel_connect deny (dgram)",
+		connect_v4_deny_prog_load,
+		connect_v4_deny_prog_destroy,
+		BPF_CGROUP_INET4_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: kernel_connect (stream)",
+		connect_v6_prog_load,
+		connect_v6_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: kernel_connect deny (stream)",
+		connect_v6_deny_prog_load,
+		connect_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: kernel_connect (dgram)",
+		connect_v6_prog_load,
+		connect_v6_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect6: kernel_connect deny (dgram)",
+		connect_v6_deny_prog_load,
+		connect_v6_deny_prog_destroy,
+		BPF_CGROUP_INET6_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect_unix: kernel_connect (dgram)",
+		connect_unix_prog_load,
+		connect_unix_prog_destroy,
+		BPF_CGROUP_UNIX_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_CONNECT,
+		"connect_unix: kernel_connect deny (dgram)",
+		connect_unix_deny_prog_load,
+		connect_unix_deny_prog_destroy,
+		BPF_CGROUP_UNIX_CONNECT,
+		&kern_ops_sock_sendmsg,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SYSCALL_EPERM,
+	},
+
+	/* sendmsg - system calls */
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: sendmsg (dgram)",
+		sendmsg_v4_prog_load,
+		sendmsg_v4_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: sendmsg deny (dgram)",
+		sendmsg_v4_deny_prog_load,
+		sendmsg_v4_deny_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: load prog with wrong expected attach type",
+		sendmsg_v4_prog_load,
+		sendmsg_v4_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: attach prog with wrong attach type",
+		sendmsg_v4_prog_load_raw,
+		sendmsg_v4_prog_destroy_raw,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg (dgram)",
+		sendmsg_v6_prog_load,
+		sendmsg_v6_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg [::] (BSD'ism) (dgram)",
+		sendmsg_v6_preserve_dst_prog_load,
+		sendmsg_v6_preserve_dst_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		WILDCARD6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_PORT,
+		SRC6_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg deny (dgram)",
+		sendmsg_v6_deny_prog_load,
+		sendmsg_v6_deny_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg IPv4-mapped IPv6 (dgram)",
+		sendmsg_v6_v4mapped_prog_load,
+		sendmsg_v6_v4mapped_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_ENOTSUPP,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sendmsg dst IP = [::] (BSD'ism) (dgram)",
+		sendmsg_v6_wildcard_prog_load,
+		sendmsg_v6_wildcard_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: load prog with wrong expected attach type",
+		sendmsg_v6_prog_load,
+		sendmsg_v6_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		LOAD_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: attach prog with wrong attach type",
+		sendmsg_v6_prog_load_raw,
+		sendmsg_v6_prog_destroy_raw,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		NULL,
+		0,
+		NULL,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: sendmsg (dgram)",
+		sendmsg_unix_prog_load,
+		sendmsg_unix_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&user_ops,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: sendmsg deny (dgram)",
+		sendmsg_unix_deny_prog_load,
+		sendmsg_unix_deny_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&user_ops,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: attach prog with wrong attach type",
+		sendmsg_unix_prog_load_raw,
+		sendmsg_unix_prog_destroy_raw,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&user_ops,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+
+	/* sendmsg - kernel calls (sock_sendmsg) */
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: sock_sendmsg (dgram)",
+		sendmsg_v4_prog_load,
+		sendmsg_v4_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: sock_sendmsg deny (dgram)",
+		sendmsg_v4_deny_prog_load,
+		sendmsg_v4_deny_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sock_sendmsg (dgram)",
+		sendmsg_v6_prog_load,
+		sendmsg_v6_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sock_sendmsg [::] (BSD'ism) (dgram)",
+		sendmsg_v6_preserve_dst_prog_load,
+		sendmsg_v6_preserve_dst_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		WILDCARD6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_PORT,
+		SRC6_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: sock_sendmsg deny (dgram)",
+		sendmsg_v6_deny_prog_load,
+		sendmsg_v6_deny_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: sock_sendmsg (dgram)",
+		sendmsg_unix_prog_load,
+		sendmsg_unix_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: sock_sendmsg deny (dgram)",
+		sendmsg_unix_deny_prog_load,
+		sendmsg_unix_deny_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&kern_ops_sock_sendmsg,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SYSCALL_EPERM,
+	},
+
+	/* sendmsg - kernel calls (kernel_sendmsg) */
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: kernel_sendmsg (dgram)",
+		sendmsg_v4_prog_load,
+		sendmsg_v4_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg4: kernel_sendmsg deny (dgram)",
+		sendmsg_v4_deny_prog_load,
+		sendmsg_v4_deny_prog_destroy,
+		BPF_CGROUP_UDP4_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_IP,
+		SERV4_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SRC4_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: kernel_sendmsg (dgram)",
+		sendmsg_v6_prog_load,
+		sendmsg_v6_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: kernel_sendmsg [::] (BSD'ism) (dgram)",
+		sendmsg_v6_preserve_dst_prog_load,
+		sendmsg_v6_preserve_dst_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		WILDCARD6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_PORT,
+		SRC6_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg6: kernel_sendmsg deny (dgram)",
+		sendmsg_v6_deny_prog_load,
+		sendmsg_v6_deny_prog_destroy,
+		BPF_CGROUP_UDP6_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_IP,
+		SERV6_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SRC6_REWRITE_IP,
+		SYSCALL_EPERM,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: sock_sendmsg (dgram)",
+		sendmsg_unix_prog_load,
+		sendmsg_unix_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_SENDMSG,
+		"sendmsg_unix: kernel_sendmsg deny (dgram)",
+		sendmsg_unix_deny_prog_load,
+		sendmsg_unix_deny_prog_destroy,
+		BPF_CGROUP_UNIX_SENDMSG,
+		&kern_ops_kernel_sendmsg,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SYSCALL_EPERM,
+	},
+
+	/* recvmsg - system calls */
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg4: recvfrom (dgram)",
+		recvmsg4_prog_load,
+		recvmsg4_prog_destroy,
+		BPF_CGROUP_UDP4_RECVMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg4: attach prog with wrong attach type",
+		recvmsg4_prog_load_raw,
+		recvmsg4_prog_destroy_raw,
+		BPF_CGROUP_UDP6_RECVMSG,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg6: recvfrom (dgram)",
+		recvmsg6_prog_load,
+		recvmsg6_prog_destroy,
+		BPF_CGROUP_UDP6_RECVMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg6: attach prog with wrong attach type",
+		recvmsg6_prog_load_raw,
+		recvmsg6_prog_destroy_raw,
+		BPF_CGROUP_UDP4_RECVMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg_unix: recvfrom (dgram)",
+		recvmsg_unix_prog_load,
+		recvmsg_unix_prog_destroy,
+		BPF_CGROUP_UNIX_RECVMSG,
+		&user_ops,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_ADDRESS,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg_unix: recvfrom (stream)",
+		recvmsg_unix_prog_load,
+		recvmsg_unix_prog_destroy,
+		BPF_CGROUP_UNIX_RECVMSG,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_ADDRESS,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_RECVMSG,
+		"recvmsg_unix: attach prog with wrong attach type",
+		recvmsg_unix_prog_load_raw,
+		recvmsg_unix_prog_destroy_raw,
+		BPF_CGROUP_UDP4_RECVMSG,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		SERVUN_ADDRESS,
+		ATTACH_REJECT,
+	},
+
+	/* getsockname - system calls */
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname4: getsockname (stream)",
+		getsockname_v4_prog_load,
+		getsockname_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname4: getsockname (dgram)",
+		getsockname_v4_prog_load,
+		getsockname_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname4: attach prog with wrong attach type",
+		getsockname_v4_prog_load_raw,
+		getsockname_v4_prog_destroy_raw,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname6: getsockname (stream)",
+		getsockname_v6_prog_load,
+		getsockname_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname6: getsockname (dgram)",
+		getsockname_v6_prog_load,
+		getsockname_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname6: attach prog with wrong attach type",
+		getsockname_v6_prog_load_raw,
+		getsockname_v6_prog_destroy_raw,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname_unix: getsockname",
+		getsockname_unix_prog_load,
+		getsockname_unix_prog_destroy,
+		BPF_CGROUP_UNIX_GETSOCKNAME,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname_unix: attach prog with wrong attach type",
+		getsockname_unix_prog_load_raw,
+		getsockname_unix_prog_destroy_raw,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+
+	/* getsockname - kernel calls */
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname4: kernel_getsockname (stream)",
+		getsockname_v4_prog_load,
+		getsockname_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname4: kernel_getsockname (dgram)",
+		getsockname_v4_prog_load,
+		getsockname_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname6: kernel_getsockname (stream)",
+		getsockname_v6_prog_load,
+		getsockname_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname6: kernel_getsockname (dgram)",
+		getsockname_v6_prog_load,
+		getsockname_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETSOCKNAME,
+		"getsockname_unix: kernel_getsockname",
+		getsockname_unix_prog_load,
+		getsockname_unix_prog_destroy,
+		BPF_CGROUP_UNIX_GETSOCKNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+
+	/* getpeername - system calls */
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername4: getpeername (stream)",
+		getpeername_v4_prog_load,
+		getpeername_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETPEERNAME,
+		&user_ops,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername4: getpeername (dgram)",
+		getpeername_v4_prog_load,
+		getpeername_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETPEERNAME,
+		&user_ops,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername4: attach prog with wrong attach type",
+		getpeername_v4_prog_load_raw,
+		getpeername_v4_prog_destroy_raw,
+		BPF_CGROUP_INET6_GETSOCKNAME,
+		&user_ops,
+		AF_UNIX,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername6: getpeername (stream)",
+		getpeername_v6_prog_load,
+		getpeername_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETPEERNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername6: getpeername (dgram)",
+		getpeername_v6_prog_load,
+		getpeername_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETPEERNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername6: attach prog with wrong attach type",
+		getpeername_v6_prog_load_raw,
+		getpeername_v6_prog_destroy_raw,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		ATTACH_REJECT,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername_unix: getpeername",
+		getpeername_unix_prog_load,
+		getpeername_unix_prog_destroy,
+		BPF_CGROUP_UNIX_GETPEERNAME,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername_unix: attach prog with wrong attach type",
+		getpeername_unix_prog_load_raw,
+		getpeername_unix_prog_destroy_raw,
+		BPF_CGROUP_INET4_GETSOCKNAME,
+		&user_ops,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		ATTACH_REJECT,
+	},
+
+	/* getpeername - kernel calls */
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername4: kernel_getpeername (stream)",
+		getpeername_v4_prog_load,
+		getpeername_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETPEERNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_STREAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername4: kernel_getpeername (dgram)",
+		getpeername_v4_prog_load,
+		getpeername_v4_prog_destroy,
+		BPF_CGROUP_INET4_GETPEERNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET,
+		SOCK_DGRAM,
+		SERV4_REWRITE_IP,
+		SERV4_REWRITE_PORT,
+		SERV4_IP,
+		SERV4_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername6: kernel_getpeername (stream)",
+		getpeername_v6_prog_load,
+		getpeername_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETPEERNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_STREAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername6: kernel_getpeername (dgram)",
+		getpeername_v6_prog_load,
+		getpeername_v6_prog_destroy,
+		BPF_CGROUP_INET6_GETPEERNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_INET6,
+		SOCK_DGRAM,
+		SERV6_REWRITE_IP,
+		SERV6_REWRITE_PORT,
+		SERV6_IP,
+		SERV6_PORT,
+		NULL,
+		SUCCESS,
+	},
+	{
+		SOCK_ADDR_TEST_GETPEERNAME,
+		"getpeername_unix: kernel_getpeername",
+		getpeername_unix_prog_load,
+		getpeername_unix_prog_destroy,
+		BPF_CGROUP_UNIX_GETPEERNAME,
+		&kern_ops_kernel_sendmsg,
+		AF_UNIX,
+		SOCK_STREAM,
+		SERVUN_ADDRESS,
+		0,
+		SERVUN_REWRITE_ADDRESS,
+		0,
+		NULL,
+		SUCCESS,
+	},
+};
+
+typedef int (*info_fn)(int, struct sockaddr *, socklen_t *);
+
+static int cmp_addr(const struct sockaddr_storage *addr1, socklen_t addr1_len,
+		    const struct sockaddr_storage *addr2, socklen_t addr2_len,
+		    bool cmp_port)
+{
+	const struct sockaddr_in *four1, *four2;
+	const struct sockaddr_in6 *six1, *six2;
+	const struct sockaddr_un *un1, *un2;
+
+	if (addr1->ss_family != addr2->ss_family)
+		return -1;
+
+	if (addr1_len != addr2_len)
+		return -1;
+
+	if (addr1->ss_family == AF_INET) {
+		four1 = (const struct sockaddr_in *)addr1;
+		four2 = (const struct sockaddr_in *)addr2;
+		return !((four1->sin_port == four2->sin_port || !cmp_port) &&
+			 four1->sin_addr.s_addr == four2->sin_addr.s_addr);
+	} else if (addr1->ss_family == AF_INET6) {
+		six1 = (const struct sockaddr_in6 *)addr1;
+		six2 = (const struct sockaddr_in6 *)addr2;
+		return !((six1->sin6_port == six2->sin6_port || !cmp_port) &&
+			 !memcmp(&six1->sin6_addr, &six2->sin6_addr,
+				 sizeof(struct in6_addr)));
+	} else if (addr1->ss_family == AF_UNIX) {
+		un1 = (const struct sockaddr_un *)addr1;
+		un2 = (const struct sockaddr_un *)addr2;
+		return memcmp(un1, un2, addr1_len);
+	}
+
+	return -1;
+}
+
+static int cmp_sock_addr(info_fn fn, int sock1,
+			 const struct sockaddr_storage *addr2,
+			 socklen_t addr2_len, bool cmp_port)
+{
+	struct sockaddr_storage addr1;
+	socklen_t len1 = sizeof(addr1);
+
+	memset(&addr1, 0, len1);
+	if (fn(sock1, (struct sockaddr *)&addr1, (socklen_t *)&len1) != 0)
+		return -1;
+
+	return cmp_addr(&addr1, len1, addr2, addr2_len, cmp_port);
+}
+
+static int load_sock_addr_kern(void)
+{
+	int err;
+
+	skel = sock_addr_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto err;
+
+	err = 0;
+	goto out;
+err:
+	err = -1;
+out:
+	return err;
+}
+
+static void unload_sock_addr_kern(void)
+{
+	sock_addr_kern__destroy(skel);
+}
+
+static int test_bind(struct sock_addr_test *test)
+{
+	struct sockaddr_storage expected_addr;
+	socklen_t expected_addr_len = sizeof(struct sockaddr_storage);
+	int serv = -1, client = -1, err;
+
+	serv = test->ops->start_server(test->socket_family, test->socket_type,
+				       test->requested_addr,
+				       test->requested_port, 0);
+	if (serv < 0) {
+		err = errno;
+		goto err;
+	}
+
+	err = make_sockaddr(test->socket_family,
+			    test->expected_addr, test->expected_port,
+			    &expected_addr, &expected_addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr,
+			    expected_addr_len, true);
+	if (!ASSERT_EQ(err, 0, "cmp_local_addr"))
+		goto cleanup;
+
+	/* Try to connect to server just in case */
+	client = connect_to_addr(test->socket_type, &expected_addr, expected_addr_len, NULL);
+	if (!ASSERT_GE(client, 0, "connect_to_addr"))
+		goto cleanup;
+
+cleanup:
+	err = 0;
+err:
+	if (client != -1)
+		close(client);
+	if (serv != -1)
+		test->ops->close(serv);
+
+	return err;
+}
+
+static int test_connect(struct sock_addr_test *test)
+{
+	struct sockaddr_storage addr, expected_addr, expected_src_addr;
+	socklen_t addr_len = sizeof(struct sockaddr_storage),
+		  expected_addr_len = sizeof(struct sockaddr_storage),
+		  expected_src_addr_len = sizeof(struct sockaddr_storage);
+	int serv = -1, client = -1, err;
+
+	serv = start_server(test->socket_family, test->socket_type,
+			    test->expected_addr, test->expected_port, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port,
+			    &addr, &addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	client = test->ops->connect_to_addr(test->socket_type, &addr, addr_len,
+					    NULL);
+	if (client < 0) {
+		err = errno;
+		goto err;
+	}
+
+	err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port,
+			    &expected_addr, &expected_addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	if (test->expected_src_addr) {
+		err = make_sockaddr(test->socket_family, test->expected_src_addr, 0,
+				    &expected_src_addr, &expected_src_addr_len);
+		if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+			goto cleanup;
+	}
+
+	err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr,
+			    expected_addr_len, true);
+	if (!ASSERT_EQ(err, 0, "cmp_peer_addr"))
+		goto cleanup;
+
+	if (test->expected_src_addr) {
+		err = cmp_sock_addr(test->ops->getsockname, client,
+				    &expected_src_addr, expected_src_addr_len,
+				    false);
+		if (!ASSERT_EQ(err, 0, "cmp_local_addr"))
+			goto cleanup;
+	}
+cleanup:
+	err = 0;
+err:
+	if (client != -1)
+		test->ops->close(client);
+	if (serv != -1)
+		close(serv);
+
+	return err;
+}
+
+static int test_xmsg(struct sock_addr_test *test)
+{
+	struct sockaddr_storage addr, src_addr;
+	socklen_t addr_len = sizeof(struct sockaddr_storage),
+		  src_addr_len = sizeof(struct sockaddr_storage);
+	char data = 'a';
+	int serv = -1, client = -1, err;
+
+	/* Unlike the other tests, here we test that we can rewrite the src addr
+	 * with a recvmsg() hook.
+	 */
+
+	serv = start_server(test->socket_family, test->socket_type,
+			    test->expected_addr, test->expected_port, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	client = test->ops->socket(test->socket_family, test->socket_type, 0);
+	if (!ASSERT_GE(client, 0, "socket"))
+		goto cleanup;
+
+	/* AF_UNIX sockets have to be bound to something to trigger the recvmsg bpf program. */
+	if (test->socket_family == AF_UNIX) {
+		err = make_sockaddr(AF_UNIX, SRCUN_ADDRESS, 0, &src_addr, &src_addr_len);
+		if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+			goto cleanup;
+
+		err = test->ops->bind(client, (struct sockaddr *)&src_addr,
+				      src_addr_len);
+		if (!ASSERT_OK(err, "bind"))
+			goto cleanup;
+	}
+
+	err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port,
+			    &addr, &addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	if (test->socket_type == SOCK_DGRAM) {
+		err = test->ops->sendmsg(client, (struct sockaddr *)&addr,
+					 addr_len, &data, sizeof(data));
+		if (err < 0) {
+			err = errno;
+			goto err;
+		}
+
+		if (!ASSERT_EQ(err, sizeof(data), "sendmsg"))
+			goto cleanup;
+	} else {
+		/* Testing with connection-oriented sockets is only valid for
+		 * recvmsg() tests.
+		 */
+		if (!ASSERT_EQ(test->type, SOCK_ADDR_TEST_RECVMSG, "recvmsg"))
+			goto cleanup;
+
+		err = connect(client, (const struct sockaddr *)&addr, addr_len);
+		if (!ASSERT_OK(err, "connect"))
+			goto cleanup;
+
+		err = send(client, &data, sizeof(data), 0);
+		if (!ASSERT_EQ(err, sizeof(data), "send"))
+			goto cleanup;
+
+		err = listen(serv, 0);
+		if (!ASSERT_OK(err, "listen"))
+			goto cleanup;
+
+		err = accept(serv, NULL, NULL);
+		if (!ASSERT_GE(err, 0, "accept"))
+			goto cleanup;
+
+		close(serv);
+		serv = err;
+	}
+
+	addr_len = src_addr_len = sizeof(struct sockaddr_storage);
+
+	err = recvfrom(serv, &data, sizeof(data), 0, (struct sockaddr *) &src_addr, &src_addr_len);
+	if (!ASSERT_EQ(err, sizeof(data), "recvfrom"))
+		goto cleanup;
+
+	ASSERT_EQ(data, 'a', "data mismatch");
+
+	if (test->expected_src_addr) {
+		err = make_sockaddr(test->socket_family, test->expected_src_addr, 0,
+				    &addr, &addr_len);
+		if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+			goto cleanup;
+
+		err = cmp_addr(&src_addr, src_addr_len, &addr, addr_len, false);
+		if (!ASSERT_EQ(err, 0, "cmp_addr"))
+			goto cleanup;
+	}
+
+cleanup:
+	err = 0;
+err:
+	if (client != -1)
+		test->ops->close(client);
+	if (serv != -1)
+		close(serv);
+
+	return err;
+}
+
+static int test_getsockname(struct sock_addr_test *test)
+{
+	struct sockaddr_storage expected_addr;
+	socklen_t expected_addr_len = sizeof(struct sockaddr_storage);
+	int serv = -1, err;
+
+	serv = test->ops->start_server(test->socket_family, test->socket_type,
+			    test->requested_addr, test->requested_port, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	err = make_sockaddr(test->socket_family,
+			    test->expected_addr, test->expected_port,
+			    &expected_addr, &expected_addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	err = cmp_sock_addr(test->ops->getsockname, serv, &expected_addr, expected_addr_len, true);
+	if (!ASSERT_EQ(err, 0, "cmp_local_addr"))
+		goto cleanup;
+
+cleanup:
+	if (serv != -1)
+		test->ops->close(serv);
+
+	return 0;
+}
+
+static int test_getpeername(struct sock_addr_test *test)
+{
+	struct sockaddr_storage addr, expected_addr;
+	socklen_t addr_len = sizeof(struct sockaddr_storage),
+		  expected_addr_len = sizeof(struct sockaddr_storage);
+	int serv = -1, client = -1, err;
+
+	serv = start_server(test->socket_family, test->socket_type,
+			    test->requested_addr, test->requested_port, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	err = make_sockaddr(test->socket_family, test->requested_addr, test->requested_port,
+			    &addr, &addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	client = test->ops->connect_to_addr(test->socket_type, &addr, addr_len,
+					    NULL);
+	if (!ASSERT_GE(client, 0, "connect_to_addr"))
+		goto cleanup;
+
+	err = make_sockaddr(test->socket_family, test->expected_addr, test->expected_port,
+			    &expected_addr, &expected_addr_len);
+	if (!ASSERT_EQ(err, 0, "make_sockaddr"))
+		goto cleanup;
+
+	err = cmp_sock_addr(test->ops->getpeername, client, &expected_addr,
+			    expected_addr_len, true);
+	if (!ASSERT_EQ(err, 0, "cmp_peer_addr"))
+		goto cleanup;
+
+cleanup:
+	if (client != -1)
+		test->ops->close(client);
+	if (serv != -1)
+		close(serv);
+
+	return 0;
+}
+
+static int setup_test_env(struct nstoken **tok)
+{
+	int err;
+
+	SYS_NOFAIL("ip netns delete %s", TEST_NS);
+	SYS(fail, "ip netns add %s", TEST_NS);
+	*tok = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(*tok, "netns token"))
+		goto fail;
+
+	SYS(fail, "ip link add dev %s1 type veth peer name %s2", TEST_IF_PREFIX,
+	    TEST_IF_PREFIX);
+	SYS(fail, "ip link set lo up");
+	SYS(fail, "ip link set %s1 up", TEST_IF_PREFIX);
+	SYS(fail, "ip link set %s2 up", TEST_IF_PREFIX);
+	SYS(fail, "ip -4 addr add %s/8 dev %s1", TEST_IPV4, TEST_IF_PREFIX);
+	SYS(fail, "ip -6 addr add %s/128 nodad dev %s1", TEST_IPV6, TEST_IF_PREFIX);
+
+	err = 0;
+	goto out;
+fail:
+	err = -1;
+	close_netns(*tok);
+	*tok = NULL;
+	SYS_NOFAIL("ip netns delete %s", TEST_NS);
+out:
+	return err;
+}
+
+static void cleanup_test_env(struct nstoken *tok)
+{
+	close_netns(tok);
+	SYS_NOFAIL("ip netns delete %s", TEST_NS);
+}
+
+void test_sock_addr(void)
+{
+	struct nstoken *tok = NULL;
+	int cgroup_fd = -1;
+	void *skel;
+
+	cgroup_fd = test__join_cgroup("/sock_addr");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		goto cleanup;
+
+	if (!ASSERT_OK(setup_test_env(&tok), "setup_test_env"))
+		goto cleanup;
+
+	if (!ASSERT_OK(load_sock_addr_kern(), "load_sock_addr_kern"))
+		goto cleanup;
+
+	for (size_t i = 0; i < ARRAY_SIZE(tests); ++i) {
+		struct sock_addr_test *test = &tests[i];
+		int err;
+
+		if (!test__start_subtest(test->name))
+			continue;
+
+		skel = test->loadfn(cgroup_fd, test->attach_type,
+				    test->expected_result == LOAD_REJECT ||
+					test->expected_result == ATTACH_REJECT);
+		if (!skel)
+			continue;
+
+		switch (test->type) {
+		/* Not exercised yet but we leave this code here for when the
+		 * INET and INET6 sockaddr tests are migrated to this file in
+		 * the future.
+		 */
+		case SOCK_ADDR_TEST_BIND:
+			err = test_bind(test);
+			break;
+		case SOCK_ADDR_TEST_CONNECT:
+			err = test_connect(test);
+			break;
+		case SOCK_ADDR_TEST_SENDMSG:
+		case SOCK_ADDR_TEST_RECVMSG:
+			err = test_xmsg(test);
+			break;
+		case SOCK_ADDR_TEST_GETSOCKNAME:
+			err = test_getsockname(test);
+			break;
+		case SOCK_ADDR_TEST_GETPEERNAME:
+			err = test_getpeername(test);
+			break;
+		default:
+			ASSERT_TRUE(false, "Unknown sock addr test type");
+			err = -EINVAL;
+			break;
+		}
+
+		if (test->expected_result == SYSCALL_EPERM)
+			ASSERT_EQ(err, EPERM, "socket operation returns EPERM");
+		else if (test->expected_result == SYSCALL_ENOTSUPP)
+			ASSERT_EQ(err, ENOTSUPP, "socket operation returns ENOTSUPP");
+		else if (test->expected_result == SUCCESS)
+			ASSERT_OK(err, "socket operation succeeds");
+
+		test->destroyfn(skel);
+	}
+
+cleanup:
+	unload_sock_addr_kern();
+	cleanup_test_env(tok);
+	if (cgroup_fd >= 0)
+		close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_create.c b/tools/testing/selftests/bpf/prog_tests/sock_create.c
new file mode 100644
index 000000000000..187ffc5e60c4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_create.c
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+static char bpf_log_buf[4096];
+static bool verbose;
+
+enum sock_create_test_error {
+	OK = 0,
+	DENY_CREATE,
+};
+
+static struct sock_create_test {
+	const char			*descr;
+	const struct bpf_insn		insns[64];
+	enum bpf_attach_type		attach_type;
+	enum bpf_attach_type		expected_attach_type;
+
+	int				domain;
+	int				type;
+	int				protocol;
+
+	int				optname;
+	int				optval;
+	enum sock_create_test_error	error;
+} tests[] = {
+	{
+		.descr = "AF_INET set priority",
+		.insns = {
+			/* r3 = 123 (priority) */
+			BPF_MOV64_IMM(BPF_REG_3, 123),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, priority)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_PRIORITY,
+		.optval = 123,
+	},
+	{
+		.descr = "AF_INET6 set priority",
+		.insns = {
+			/* r3 = 123 (priority) */
+			BPF_MOV64_IMM(BPF_REG_3, 123),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, priority)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET6,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_PRIORITY,
+		.optval = 123,
+	},
+	{
+		.descr = "AF_INET set mark",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* get uid of process */
+			BPF_EMIT_CALL(BPF_FUNC_get_current_uid_gid),
+			BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffffffff),
+
+			/* if uid is 0, use given mark(666), else use uid as the mark */
+			BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+			BPF_MOV64_IMM(BPF_REG_3, 666),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, mark)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_MARK,
+		.optval = 666,
+	},
+	{
+		.descr = "AF_INET6 set mark",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* get uid of process */
+			BPF_EMIT_CALL(BPF_FUNC_get_current_uid_gid),
+			BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffffffff),
+
+			/* if uid is 0, use given mark(666), else use uid as the mark */
+			BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+			BPF_MOV64_IMM(BPF_REG_3, 666),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, mark)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET6,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_MARK,
+		.optval = 666,
+	},
+	{
+		.descr = "AF_INET bound to iface",
+		.insns = {
+			/* r3 = 1 (lo interface) */
+			BPF_MOV64_IMM(BPF_REG_3, 1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, bound_dev_if)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_BINDTOIFINDEX,
+		.optval = 1,
+	},
+	{
+		.descr = "AF_INET6 bound to iface",
+		.insns = {
+			/* r3 = 1 (lo interface) */
+			BPF_MOV64_IMM(BPF_REG_3, 1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3,
+				    offsetof(struct bpf_sock, bound_dev_if)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET6,
+		.type = SOCK_DGRAM,
+
+		.optname = SO_BINDTOIFINDEX,
+		.optval = 1,
+	},
+	{
+		.descr = "block AF_INET, SOCK_DGRAM, IPPROTO_ICMP socket",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),	/* r0 = verdict */
+
+			/* sock->family == AF_INET */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, family)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, AF_INET, 5),
+
+			/* sock->type == SOCK_DGRAM */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, type)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, SOCK_DGRAM, 3),
+
+			/* sock->protocol == IPPROTO_ICMP */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, protocol)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, IPPROTO_ICMP, 1),
+
+			/* return 0 (block) */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+		.protocol = IPPROTO_ICMP,
+
+		.error = DENY_CREATE,
+	},
+	{
+		.descr = "block AF_INET6, SOCK_DGRAM, IPPROTO_ICMPV6 socket",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),	/* r0 = verdict */
+
+			/* sock->family == AF_INET6 */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, family)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, AF_INET6, 5),
+
+			/* sock->type == SOCK_DGRAM */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, type)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, SOCK_DGRAM, 3),
+
+			/* sock->protocol == IPPROTO_ICMPV6 */
+			BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct bpf_sock, protocol)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_2, IPPROTO_ICMPV6, 1),
+
+			/* return 0 (block) */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+		.protocol = IPPROTO_ICMPV6,
+
+		.error = DENY_CREATE,
+	},
+	{
+		.descr = "load w/o expected_attach_type (compat mode)",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = 0,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	},
+};
+
+static int load_prog(const struct bpf_insn *insns,
+		     enum bpf_attach_type expected_attach_type)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		    .expected_attach_type = expected_attach_type,
+		    .log_level = 2,
+		    .log_buf = bpf_log_buf,
+		    .log_size = sizeof(bpf_log_buf),
+	);
+	int fd, insns_cnt = 0;
+
+	for (;
+	     insns[insns_cnt].code != (BPF_JMP | BPF_EXIT);
+	     insns_cnt++) {
+	}
+	insns_cnt++;
+
+	fd = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK, NULL, "GPL", insns,
+			   insns_cnt, &opts);
+	if (verbose && fd < 0)
+		fprintf(stderr, "%s\n", bpf_log_buf);
+
+	return fd;
+}
+
+static int run_test(int cgroup_fd, struct sock_create_test *test)
+{
+	int sock_fd, err, prog_fd, optval, ret = -1;
+	socklen_t optlen = sizeof(optval);
+
+	prog_fd = load_prog(test->insns, test->expected_attach_type);
+	if (prog_fd < 0) {
+		log_err("Failed to load BPF program");
+		return -1;
+	}
+
+	err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0);
+	if (err < 0) {
+		log_err("Failed to attach BPF program");
+		goto close_prog_fd;
+	}
+
+	sock_fd = socket(test->domain, test->type, test->protocol);
+	if (sock_fd < 0) {
+		if (test->error == DENY_CREATE)
+			ret = 0;
+		else
+			log_err("Failed to create socket");
+
+		goto detach_prog;
+	}
+
+	if (test->optname) {
+		err = getsockopt(sock_fd, SOL_SOCKET, test->optname, &optval, &optlen);
+		if (err) {
+			log_err("Failed to call getsockopt");
+			goto cleanup;
+		}
+
+		if (optval != test->optval) {
+			errno = 0;
+			log_err("getsockopt returned unexpected optval");
+			goto cleanup;
+		}
+	}
+
+	ret = test->error != OK;
+
+cleanup:
+	close(sock_fd);
+detach_prog:
+	bpf_prog_detach2(prog_fd, cgroup_fd, test->attach_type);
+close_prog_fd:
+	close(prog_fd);
+	return ret;
+}
+
+void test_sock_create(void)
+{
+	int cgroup_fd, i;
+
+	cgroup_fd = test__join_cgroup("/sock_create");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (!test__start_subtest(tests[i].descr))
+			continue;
+
+		ASSERT_OK(run_test(cgroup_fd, &tests[i]), tests[i].descr);
+	}
+
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_destroy.c b/tools/testing/selftests/bpf/prog_tests/sock_destroy.c
new file mode 100644
index 000000000000..9c11938fe597
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_destroy.c
@@ -0,0 +1,221 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <bpf/bpf_endian.h>
+
+#include "sock_destroy_prog.skel.h"
+#include "sock_destroy_prog_fail.skel.h"
+#include "network_helpers.h"
+
+#define TEST_NS "sock_destroy_netns"
+
+static void start_iter_sockets(struct bpf_program *prog)
+{
+	struct bpf_link *link;
+	char buf[50] = {};
+	int iter_fd, len;
+
+	link = bpf_program__attach_iter(prog, NULL);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		return;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	ASSERT_GE(len, 0, "read");
+
+	close(iter_fd);
+
+free_link:
+	bpf_link__destroy(link);
+}
+
+static void test_tcp_client(struct sock_destroy_prog *skel)
+{
+	int serv = -1, clien = -1, accept_serv = -1, n;
+
+	serv = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	clien = connect_to_fd(serv, 0);
+	if (!ASSERT_GE(clien, 0, "connect_to_fd"))
+		goto cleanup;
+
+	accept_serv = accept(serv, NULL, NULL);
+	if (!ASSERT_GE(accept_serv, 0, "serv accept"))
+		goto cleanup;
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_EQ(n, 1, "client send"))
+		goto cleanup;
+
+	/* Run iterator program that destroys connected client sockets. */
+	start_iter_sockets(skel->progs.iter_tcp6_client);
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_LT(n, 0, "client_send on destroyed socket"))
+		goto cleanup;
+	ASSERT_EQ(errno, ECONNABORTED, "error code on destroyed socket");
+
+cleanup:
+	if (clien != -1)
+		close(clien);
+	if (accept_serv != -1)
+		close(accept_serv);
+	if (serv != -1)
+		close(serv);
+}
+
+static void test_tcp_server(struct sock_destroy_prog *skel)
+{
+	int serv = -1, clien = -1, accept_serv = -1, n, serv_port;
+
+	serv = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+	serv_port = get_socket_local_port(serv);
+	if (!ASSERT_GE(serv_port, 0, "get_sock_local_port"))
+		goto cleanup;
+	skel->bss->serv_port = (__be16) serv_port;
+
+	clien = connect_to_fd(serv, 0);
+	if (!ASSERT_GE(clien, 0, "connect_to_fd"))
+		goto cleanup;
+
+	accept_serv = accept(serv, NULL, NULL);
+	if (!ASSERT_GE(accept_serv, 0, "serv accept"))
+		goto cleanup;
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_EQ(n, 1, "client send"))
+		goto cleanup;
+
+	/* Run iterator program that destroys server sockets. */
+	start_iter_sockets(skel->progs.iter_tcp6_server);
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_LT(n, 0, "client_send on destroyed socket"))
+		goto cleanup;
+	ASSERT_EQ(errno, ECONNRESET, "error code on destroyed socket");
+
+cleanup:
+	if (clien != -1)
+		close(clien);
+	if (accept_serv != -1)
+		close(accept_serv);
+	if (serv != -1)
+		close(serv);
+}
+
+static void test_udp_client(struct sock_destroy_prog *skel)
+{
+	int serv = -1, clien = -1, n = 0;
+
+	serv = start_server(AF_INET6, SOCK_DGRAM, NULL, 0, 0);
+	if (!ASSERT_GE(serv, 0, "start_server"))
+		goto cleanup;
+
+	clien = connect_to_fd(serv, 0);
+	if (!ASSERT_GE(clien, 0, "connect_to_fd"))
+		goto cleanup;
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_EQ(n, 1, "client send"))
+		goto cleanup;
+
+	/* Run iterator program that destroys sockets. */
+	start_iter_sockets(skel->progs.iter_udp6_client);
+
+	n = send(clien, "t", 1, 0);
+	if (!ASSERT_LT(n, 0, "client_send on destroyed socket"))
+		goto cleanup;
+	/* UDP sockets have an overriding error code after they are disconnected,
+	 * so we don't check for ECONNABORTED error code.
+	 */
+
+cleanup:
+	if (clien != -1)
+		close(clien);
+	if (serv != -1)
+		close(serv);
+}
+
+static void test_udp_server(struct sock_destroy_prog *skel)
+{
+	int *listen_fds = NULL, n, i, serv_port;
+	unsigned int num_listens = 5;
+	char buf[1];
+
+	/* Start reuseport servers. */
+	listen_fds = start_reuseport_server(AF_INET6, SOCK_DGRAM,
+					    "::1", 0, 0, num_listens);
+	if (!ASSERT_OK_PTR(listen_fds, "start_reuseport_server"))
+		goto cleanup;
+	serv_port = get_socket_local_port(listen_fds[0]);
+	if (!ASSERT_GE(serv_port, 0, "get_sock_local_port"))
+		goto cleanup;
+	skel->bss->serv_port = (__be16) serv_port;
+
+	/* Run iterator program that destroys server sockets. */
+	start_iter_sockets(skel->progs.iter_udp6_server);
+
+	for (i = 0; i < num_listens; ++i) {
+		n = read(listen_fds[i], buf, sizeof(buf));
+		if (!ASSERT_EQ(n, -1, "read") ||
+		    !ASSERT_EQ(errno, ECONNABORTED, "error code on destroyed socket"))
+			break;
+	}
+	ASSERT_EQ(i, num_listens, "server socket");
+
+cleanup:
+	free_fds(listen_fds, num_listens);
+}
+
+void test_sock_destroy(void)
+{
+	struct sock_destroy_prog *skel;
+	struct nstoken *nstoken = NULL;
+	int cgroup_fd;
+
+	skel = sock_destroy_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	cgroup_fd = test__join_cgroup("/sock_destroy");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		goto cleanup;
+
+	skel->links.sock_connect = bpf_program__attach_cgroup(
+		skel->progs.sock_connect, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.sock_connect, "prog_attach"))
+		goto cleanup;
+
+	SYS(cleanup, "ip netns add %s", TEST_NS);
+	SYS(cleanup, "ip -net %s link set dev lo up", TEST_NS);
+
+	nstoken = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto cleanup;
+
+	if (test__start_subtest("tcp_client"))
+		test_tcp_client(skel);
+	if (test__start_subtest("tcp_server"))
+		test_tcp_server(skel);
+	if (test__start_subtest("udp_client"))
+		test_udp_client(skel);
+	if (test__start_subtest("udp_server"))
+		test_udp_server(skel);
+
+	RUN_TESTS(sock_destroy_prog_fail);
+
+cleanup:
+	if (nstoken)
+		close_netns(nstoken);
+	SYS_NOFAIL("ip netns del " TEST_NS);
+	if (cgroup_fd >= 0)
+		close(cgroup_fd);
+	sock_destroy_prog__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_fields.c b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
new file mode 100644
index 000000000000..7d23166c77af
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
@@ -0,0 +1,402 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#define _GNU_SOURCE
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <sched.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <linux/compiler.h>
+
+#include "network_helpers.h"
+#include "cgroup_helpers.h"
+#include "test_progs.h"
+#include "test_sock_fields.skel.h"
+
+enum bpf_linum_array_idx {
+	EGRESS_LINUM_IDX,
+	INGRESS_LINUM_IDX,
+	READ_SK_DST_PORT_LINUM_IDX,
+	__NR_BPF_LINUM_ARRAY_IDX,
+};
+
+struct bpf_spinlock_cnt {
+	struct bpf_spin_lock lock;
+	__u32 cnt;
+};
+
+#define PARENT_CGROUP	"/test-bpf-sock-fields"
+#define CHILD_CGROUP	"/test-bpf-sock-fields/child"
+#define DATA "Hello BPF!"
+#define DATA_LEN sizeof(DATA)
+
+static struct sockaddr_in6 srv_sa6, cli_sa6;
+static int sk_pkt_out_cnt10_fd;
+static struct test_sock_fields *skel;
+static int sk_pkt_out_cnt_fd;
+static __u64 parent_cg_id;
+static __u64 child_cg_id;
+static int linum_map_fd;
+static __u32 duration;
+
+static bool create_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return false;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "bring up lo"))
+		return false;
+
+	return true;
+}
+
+static void print_sk(const struct bpf_sock *sk, const char *prefix)
+{
+	char src_ip4[24], dst_ip4[24];
+	char src_ip6[64], dst_ip6[64];
+
+	inet_ntop(AF_INET, &sk->src_ip4, src_ip4, sizeof(src_ip4));
+	inet_ntop(AF_INET6, &sk->src_ip6, src_ip6, sizeof(src_ip6));
+	inet_ntop(AF_INET, &sk->dst_ip4, dst_ip4, sizeof(dst_ip4));
+	inet_ntop(AF_INET6, &sk->dst_ip6, dst_ip6, sizeof(dst_ip6));
+
+	printf("%s: state:%u bound_dev_if:%u family:%u type:%u protocol:%u mark:%u priority:%u "
+	       "src_ip4:%x(%s) src_ip6:%x:%x:%x:%x(%s) src_port:%u "
+	       "dst_ip4:%x(%s) dst_ip6:%x:%x:%x:%x(%s) dst_port:%u\n",
+	       prefix,
+	       sk->state, sk->bound_dev_if, sk->family, sk->type, sk->protocol,
+	       sk->mark, sk->priority,
+	       sk->src_ip4, src_ip4,
+	       sk->src_ip6[0], sk->src_ip6[1], sk->src_ip6[2], sk->src_ip6[3],
+	       src_ip6, sk->src_port,
+	       sk->dst_ip4, dst_ip4,
+	       sk->dst_ip6[0], sk->dst_ip6[1], sk->dst_ip6[2], sk->dst_ip6[3],
+	       dst_ip6, ntohs(sk->dst_port));
+}
+
+static void print_tp(const struct bpf_tcp_sock *tp, const char *prefix)
+{
+	printf("%s: snd_cwnd:%u srtt_us:%u rtt_min:%u snd_ssthresh:%u rcv_nxt:%u "
+	       "snd_nxt:%u snd:una:%u mss_cache:%u ecn_flags:%u "
+	       "rate_delivered:%u rate_interval_us:%u packets_out:%u "
+	       "retrans_out:%u total_retrans:%u segs_in:%u data_segs_in:%u "
+	       "segs_out:%u data_segs_out:%u lost_out:%u sacked_out:%u "
+	       "bytes_received:%llu bytes_acked:%llu\n",
+	       prefix,
+	       tp->snd_cwnd, tp->srtt_us, tp->rtt_min, tp->snd_ssthresh,
+	       tp->rcv_nxt, tp->snd_nxt, tp->snd_una, tp->mss_cache,
+	       tp->ecn_flags, tp->rate_delivered, tp->rate_interval_us,
+	       tp->packets_out, tp->retrans_out, tp->total_retrans,
+	       tp->segs_in, tp->data_segs_in, tp->segs_out,
+	       tp->data_segs_out, tp->lost_out, tp->sacked_out,
+	       tp->bytes_received, tp->bytes_acked);
+}
+
+static void check_result(void)
+{
+	struct bpf_tcp_sock srv_tp, cli_tp, listen_tp;
+	struct bpf_sock srv_sk, cli_sk, listen_sk;
+	__u32 idx, ingress_linum, egress_linum, linum;
+	int err;
+
+	idx = EGRESS_LINUM_IDX;
+	err = bpf_map_lookup_elem(linum_map_fd, &idx, &egress_linum);
+	CHECK(err < 0, "bpf_map_lookup_elem(linum_map_fd)",
+	      "err:%d errno:%d\n", err, errno);
+
+	idx = INGRESS_LINUM_IDX;
+	err = bpf_map_lookup_elem(linum_map_fd, &idx, &ingress_linum);
+	CHECK(err < 0, "bpf_map_lookup_elem(linum_map_fd)",
+	      "err:%d errno:%d\n", err, errno);
+
+	idx = READ_SK_DST_PORT_LINUM_IDX;
+	err = bpf_map_lookup_elem(linum_map_fd, &idx, &linum);
+	ASSERT_OK(err, "bpf_map_lookup_elem(linum_map_fd, READ_SK_DST_PORT_IDX)");
+	ASSERT_EQ(linum, 0, "failure in read_sk_dst_port on line");
+
+	memcpy(&srv_sk, &skel->bss->srv_sk, sizeof(srv_sk));
+	memcpy(&srv_tp, &skel->bss->srv_tp, sizeof(srv_tp));
+	memcpy(&cli_sk, &skel->bss->cli_sk, sizeof(cli_sk));
+	memcpy(&cli_tp, &skel->bss->cli_tp, sizeof(cli_tp));
+	memcpy(&listen_sk, &skel->bss->listen_sk, sizeof(listen_sk));
+	memcpy(&listen_tp, &skel->bss->listen_tp, sizeof(listen_tp));
+
+	print_sk(&listen_sk, "listen_sk");
+	print_sk(&srv_sk, "srv_sk");
+	print_sk(&cli_sk, "cli_sk");
+	print_tp(&listen_tp, "listen_tp");
+	print_tp(&srv_tp, "srv_tp");
+	print_tp(&cli_tp, "cli_tp");
+
+	CHECK(listen_sk.state != 10 ||
+	      listen_sk.family != AF_INET6 ||
+	      listen_sk.protocol != IPPROTO_TCP ||
+	      memcmp(listen_sk.src_ip6, &in6addr_loopback,
+		     sizeof(listen_sk.src_ip6)) ||
+	      listen_sk.dst_ip6[0] || listen_sk.dst_ip6[1] ||
+	      listen_sk.dst_ip6[2] || listen_sk.dst_ip6[3] ||
+	      listen_sk.src_port != ntohs(srv_sa6.sin6_port) ||
+	      listen_sk.dst_port,
+	      "listen_sk",
+	      "Unexpected. Check listen_sk output. ingress_linum:%u\n",
+	      ingress_linum);
+
+	CHECK(srv_sk.state == 10 ||
+	      !srv_sk.state ||
+	      srv_sk.family != AF_INET6 ||
+	      srv_sk.protocol != IPPROTO_TCP ||
+	      memcmp(srv_sk.src_ip6, &in6addr_loopback,
+		     sizeof(srv_sk.src_ip6)) ||
+	      memcmp(srv_sk.dst_ip6, &in6addr_loopback,
+		     sizeof(srv_sk.dst_ip6)) ||
+	      srv_sk.src_port != ntohs(srv_sa6.sin6_port) ||
+	      srv_sk.dst_port != cli_sa6.sin6_port,
+	      "srv_sk", "Unexpected. Check srv_sk output. egress_linum:%u\n",
+	      egress_linum);
+
+	CHECK(!skel->bss->lsndtime, "srv_tp", "Unexpected lsndtime:0\n");
+
+	CHECK(cli_sk.state == 10 ||
+	      !cli_sk.state ||
+	      cli_sk.family != AF_INET6 ||
+	      cli_sk.protocol != IPPROTO_TCP ||
+	      memcmp(cli_sk.src_ip6, &in6addr_loopback,
+		     sizeof(cli_sk.src_ip6)) ||
+	      memcmp(cli_sk.dst_ip6, &in6addr_loopback,
+		     sizeof(cli_sk.dst_ip6)) ||
+	      cli_sk.src_port != ntohs(cli_sa6.sin6_port) ||
+	      cli_sk.dst_port != srv_sa6.sin6_port,
+	      "cli_sk", "Unexpected. Check cli_sk output. egress_linum:%u\n",
+	      egress_linum);
+
+	CHECK(listen_tp.data_segs_out ||
+	      listen_tp.data_segs_in ||
+	      listen_tp.total_retrans ||
+	      listen_tp.bytes_acked,
+	      "listen_tp",
+	      "Unexpected. Check listen_tp output. ingress_linum:%u\n",
+	      ingress_linum);
+
+	CHECK(srv_tp.data_segs_out != 2 ||
+	      srv_tp.data_segs_in ||
+	      srv_tp.snd_cwnd != 10 ||
+	      srv_tp.total_retrans ||
+	      srv_tp.bytes_acked < 2 * DATA_LEN,
+	      "srv_tp", "Unexpected. Check srv_tp output. egress_linum:%u\n",
+	      egress_linum);
+
+	CHECK(cli_tp.data_segs_out ||
+	      cli_tp.data_segs_in != 2 ||
+	      cli_tp.snd_cwnd != 10 ||
+	      cli_tp.total_retrans ||
+	      cli_tp.bytes_received < 2 * DATA_LEN,
+	      "cli_tp", "Unexpected. Check cli_tp output. egress_linum:%u\n",
+	      egress_linum);
+
+	CHECK(skel->bss->parent_cg_id != parent_cg_id,
+	      "parent_cg_id", "%zu != %zu\n",
+	      (size_t)skel->bss->parent_cg_id, (size_t)parent_cg_id);
+
+	CHECK(skel->bss->child_cg_id != child_cg_id,
+	      "child_cg_id", "%zu != %zu\n",
+	       (size_t)skel->bss->child_cg_id, (size_t)child_cg_id);
+}
+
+static void check_sk_pkt_out_cnt(int accept_fd, int cli_fd)
+{
+	struct bpf_spinlock_cnt pkt_out_cnt = {}, pkt_out_cnt10 = {};
+	int err;
+
+	pkt_out_cnt.cnt = ~0;
+	pkt_out_cnt10.cnt = ~0;
+	err = bpf_map_lookup_elem(sk_pkt_out_cnt_fd, &accept_fd, &pkt_out_cnt);
+	if (!err)
+		err = bpf_map_lookup_elem(sk_pkt_out_cnt10_fd, &accept_fd,
+					  &pkt_out_cnt10);
+
+	/* The bpf prog only counts for fullsock and
+	 * passive connection did not become fullsock until 3WHS
+	 * had been finished, so the bpf prog only counted two data
+	 * packet out.
+	 */
+	CHECK(err || pkt_out_cnt.cnt < 0xeB9F + 2 ||
+	      pkt_out_cnt10.cnt < 0xeB9F + 20,
+	      "bpf_map_lookup_elem(sk_pkt_out_cnt, &accept_fd)",
+	      "err:%d errno:%d pkt_out_cnt:%u pkt_out_cnt10:%u\n",
+	      err, errno, pkt_out_cnt.cnt, pkt_out_cnt10.cnt);
+
+	pkt_out_cnt.cnt = ~0;
+	pkt_out_cnt10.cnt = ~0;
+	err = bpf_map_lookup_elem(sk_pkt_out_cnt_fd, &cli_fd, &pkt_out_cnt);
+	if (!err)
+		err = bpf_map_lookup_elem(sk_pkt_out_cnt10_fd, &cli_fd,
+					  &pkt_out_cnt10);
+	/* Active connection is fullsock from the beginning.
+	 * 1 SYN and 1 ACK during 3WHS
+	 * 2 Acks on data packet.
+	 *
+	 * The bpf_prog initialized it to 0xeB9F.
+	 */
+	CHECK(err || pkt_out_cnt.cnt < 0xeB9F + 4 ||
+	      pkt_out_cnt10.cnt < 0xeB9F + 40,
+	      "bpf_map_lookup_elem(sk_pkt_out_cnt, &cli_fd)",
+	      "err:%d errno:%d pkt_out_cnt:%u pkt_out_cnt10:%u\n",
+	      err, errno, pkt_out_cnt.cnt, pkt_out_cnt10.cnt);
+}
+
+static int init_sk_storage(int sk_fd, __u32 pkt_out_cnt)
+{
+	struct bpf_spinlock_cnt scnt = {};
+	int err;
+
+	scnt.cnt = pkt_out_cnt;
+	err = bpf_map_update_elem(sk_pkt_out_cnt_fd, &sk_fd, &scnt,
+				  BPF_NOEXIST);
+	if (CHECK(err, "bpf_map_update_elem(sk_pkt_out_cnt_fd)",
+		  "err:%d errno:%d\n", err, errno))
+		return err;
+
+	err = bpf_map_update_elem(sk_pkt_out_cnt10_fd, &sk_fd, &scnt,
+				  BPF_NOEXIST);
+	if (CHECK(err, "bpf_map_update_elem(sk_pkt_out_cnt10_fd)",
+		  "err:%d errno:%d\n", err, errno))
+		return err;
+
+	return 0;
+}
+
+static void test(void)
+{
+	int listen_fd = -1, cli_fd = -1, accept_fd = -1, err, i;
+	socklen_t addrlen = sizeof(struct sockaddr_in6);
+	char buf[DATA_LEN];
+
+	/* Prepare listen_fd */
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0xcafe, 0);
+	/* start_server() has logged the error details */
+	if (CHECK_FAIL(listen_fd == -1))
+		goto done;
+
+	err = getsockname(listen_fd, (struct sockaddr *)&srv_sa6, &addrlen);
+	if (CHECK(err, "getsockname(listen_fd)", "err:%d errno:%d\n", err,
+		  errno))
+		goto done;
+	memcpy(&skel->bss->srv_sa6, &srv_sa6, sizeof(srv_sa6));
+
+	cli_fd = connect_to_fd(listen_fd, 0);
+	if (CHECK_FAIL(cli_fd == -1))
+		goto done;
+
+	err = getsockname(cli_fd, (struct sockaddr *)&cli_sa6, &addrlen);
+	if (CHECK(err, "getsockname(cli_fd)", "err:%d errno:%d\n",
+		  err, errno))
+		goto done;
+
+	accept_fd = accept(listen_fd, NULL, NULL);
+	if (CHECK(accept_fd == -1, "accept(listen_fd)",
+		  "accept_fd:%d errno:%d\n",
+		  accept_fd, errno))
+		goto done;
+
+	if (init_sk_storage(accept_fd, 0xeB9F))
+		goto done;
+
+	for (i = 0; i < 2; i++) {
+		/* Send some data from accept_fd to cli_fd.
+		 * MSG_EOR to stop kernel from coalescing two pkts.
+		 */
+		err = send(accept_fd, DATA, DATA_LEN, MSG_EOR);
+		if (CHECK(err != DATA_LEN, "send(accept_fd)",
+			  "err:%d errno:%d\n", err, errno))
+			goto done;
+
+		err = recv(cli_fd, buf, DATA_LEN, 0);
+		if (CHECK(err != DATA_LEN, "recv(cli_fd)", "err:%d errno:%d\n",
+			  err, errno))
+			goto done;
+	}
+
+	shutdown(cli_fd, SHUT_WR);
+	err = recv(accept_fd, buf, 1, 0);
+	if (CHECK(err, "recv(accept_fd) for fin", "err:%d errno:%d\n",
+		  err, errno))
+		goto done;
+	shutdown(accept_fd, SHUT_WR);
+	err = recv(cli_fd, buf, 1, 0);
+	if (CHECK(err, "recv(cli_fd) for fin", "err:%d errno:%d\n",
+		  err, errno))
+		goto done;
+	check_sk_pkt_out_cnt(accept_fd, cli_fd);
+	check_result();
+
+done:
+	if (accept_fd != -1)
+		close(accept_fd);
+	if (cli_fd != -1)
+		close(cli_fd);
+	if (listen_fd != -1)
+		close(listen_fd);
+}
+
+void serial_test_sock_fields(void)
+{
+	int parent_cg_fd = -1, child_cg_fd = -1;
+	struct bpf_link *link;
+
+	/* Use a dedicated netns to have a fixed listen port */
+	if (!create_netns())
+		return;
+
+	/* Create a cgroup, get fd, and join it */
+	parent_cg_fd = test__join_cgroup(PARENT_CGROUP);
+	if (CHECK_FAIL(parent_cg_fd < 0))
+		return;
+	parent_cg_id = get_cgroup_id(PARENT_CGROUP);
+	if (CHECK_FAIL(!parent_cg_id))
+		goto done;
+
+	child_cg_fd = test__join_cgroup(CHILD_CGROUP);
+	if (CHECK_FAIL(child_cg_fd < 0))
+		goto done;
+	child_cg_id = get_cgroup_id(CHILD_CGROUP);
+	if (CHECK_FAIL(!child_cg_id))
+		goto done;
+
+	skel = test_sock_fields__open_and_load();
+	if (CHECK(!skel, "test_sock_fields__open_and_load", "failed\n"))
+		goto done;
+
+	link = bpf_program__attach_cgroup(skel->progs.egress_read_sock_fields, child_cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(egress_read_sock_fields)"))
+		goto done;
+	skel->links.egress_read_sock_fields = link;
+
+	link = bpf_program__attach_cgroup(skel->progs.ingress_read_sock_fields, child_cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(ingress_read_sock_fields)"))
+		goto done;
+	skel->links.ingress_read_sock_fields = link;
+
+	link = bpf_program__attach_cgroup(skel->progs.read_sk_dst_port, child_cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(read_sk_dst_port"))
+		goto done;
+	skel->links.read_sk_dst_port = link;
+
+	linum_map_fd = bpf_map__fd(skel->maps.linum_map);
+	sk_pkt_out_cnt_fd = bpf_map__fd(skel->maps.sk_pkt_out_cnt);
+	sk_pkt_out_cnt10_fd = bpf_map__fd(skel->maps.sk_pkt_out_cnt10);
+
+	test();
+
+done:
+	test_sock_fields__destroy(skel);
+	if (child_cg_fd >= 0)
+		close(child_cg_fd);
+	if (parent_cg_fd >= 0)
+		close(parent_cg_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_iter_batch.c b/tools/testing/selftests/bpf/prog_tests/sock_iter_batch.c
new file mode 100644
index 000000000000..27781df8f2fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_iter_batch.c
@@ -0,0 +1,994 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2024 Meta
+
+#include <poll.h>
+#include <test_progs.h>
+#include "network_helpers.h"
+#include "sock_iter_batch.skel.h"
+
+#define TEST_NS "sock_iter_batch_netns"
+#define TEST_CHILD_NS "sock_iter_batch_child_netns"
+
+static const int init_batch_size = 16;
+static const int nr_soreuse = 4;
+
+struct iter_out {
+	int idx;
+	__u64 cookie;
+} __packed;
+
+struct sock_count {
+	__u64 cookie;
+	int count;
+};
+
+static int insert(__u64 cookie, struct sock_count counts[], int counts_len)
+{
+	int insert = -1;
+	int i = 0;
+
+	for (; i < counts_len; i++) {
+		if (!counts[i].cookie) {
+			insert = i;
+		} else if (counts[i].cookie == cookie) {
+			insert = i;
+			break;
+		}
+	}
+	if (insert < 0)
+		return insert;
+
+	counts[insert].cookie = cookie;
+	counts[insert].count++;
+
+	return counts[insert].count;
+}
+
+static int read_n(int iter_fd, int n, struct sock_count counts[],
+		  int counts_len)
+{
+	struct iter_out out;
+	int nread = 1;
+	int i = 0;
+
+	for (; nread > 0 && (n < 0 || i < n); i++) {
+		nread = read(iter_fd, &out, sizeof(out));
+		if (!nread || !ASSERT_EQ(nread, sizeof(out), "nread"))
+			break;
+		ASSERT_GE(insert(out.cookie, counts, counts_len), 0, "insert");
+	}
+
+	ASSERT_TRUE(n < 0 || i == n, "n < 0 || i == n");
+
+	return i;
+}
+
+static __u64 socket_cookie(int fd)
+{
+	__u64 cookie;
+	socklen_t cookie_len = sizeof(cookie);
+
+	if (!ASSERT_OK(getsockopt(fd, SOL_SOCKET, SO_COOKIE, &cookie,
+				  &cookie_len), "getsockopt(SO_COOKIE)"))
+		return 0;
+	return cookie;
+}
+
+static bool was_seen(int fd, struct sock_count counts[], int counts_len)
+{
+	__u64 cookie = socket_cookie(fd);
+	int i = 0;
+
+	for (; cookie && i < counts_len; i++)
+		if (cookie == counts[i].cookie)
+			return true;
+
+	return false;
+}
+
+static int get_seen_socket(int *fds, struct sock_count counts[], int n)
+{
+	int i = 0;
+
+	for (; i < n; i++)
+		if (was_seen(fds[i], counts, n))
+			return i;
+	return -1;
+}
+
+static int get_nth_socket(int *fds, int fds_len, struct bpf_link *link, int n)
+{
+	int i, nread, iter_fd;
+	int nth_sock_idx = -1;
+	struct iter_out out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_OK_FD(iter_fd, "bpf_iter_create"))
+		return -1;
+
+	for (; n >= 0; n--) {
+		nread = read(iter_fd, &out, sizeof(out));
+		if (!nread || !ASSERT_GE(nread, 1, "nread"))
+			goto done;
+	}
+
+	for (i = 0; i < fds_len && nth_sock_idx < 0; i++)
+		if (fds[i] >= 0 && socket_cookie(fds[i]) == out.cookie)
+			nth_sock_idx = i;
+done:
+	close(iter_fd);
+	return nth_sock_idx;
+}
+
+static void destroy(int fd)
+{
+	struct sock_iter_batch *skel = NULL;
+	__u64 cookie = socket_cookie(fd);
+	struct bpf_link *link = NULL;
+	int iter_fd = -1;
+	int nread;
+	__u64 out;
+
+	skel = sock_iter_batch__open();
+	if (!ASSERT_OK_PTR(skel, "sock_iter_batch__open"))
+		goto done;
+
+	skel->rodata->destroy_cookie = cookie;
+
+	if (!ASSERT_OK(sock_iter_batch__load(skel), "sock_iter_batch__load"))
+		goto done;
+
+	link = bpf_program__attach_iter(skel->progs.iter_tcp_destroy, NULL);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_iter"))
+		goto done;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_OK_FD(iter_fd, "bpf_iter_create"))
+		goto done;
+
+	/* Delete matching socket. */
+	nread = read(iter_fd, &out, sizeof(out));
+	ASSERT_GE(nread, 0, "nread");
+	if (nread)
+		ASSERT_EQ(out, cookie, "cookie matches");
+done:
+	if (iter_fd >= 0)
+		close(iter_fd);
+	bpf_link__destroy(link);
+	sock_iter_batch__destroy(skel);
+	close(fd);
+}
+
+static int get_seen_count(int fd, struct sock_count counts[], int n)
+{
+	__u64 cookie = socket_cookie(fd);
+	int count = 0;
+	int i = 0;
+
+	for (; cookie && !count && i < n; i++)
+		if (cookie == counts[i].cookie)
+			count = counts[i].count;
+
+	return count;
+}
+
+static void check_n_were_seen_once(int *fds, int fds_len, int n,
+				   struct sock_count counts[], int counts_len)
+{
+	int seen_once = 0;
+	int seen_cnt;
+	int i = 0;
+
+	for (; i < fds_len; i++) {
+		/* Skip any sockets that were closed or that weren't seen
+		 * exactly once.
+		 */
+		if (fds[i] < 0)
+			continue;
+		seen_cnt = get_seen_count(fds[i], counts, counts_len);
+		if (seen_cnt && ASSERT_EQ(seen_cnt, 1, "seen_cnt"))
+			seen_once++;
+	}
+
+	ASSERT_EQ(seen_once, n, "seen_once");
+}
+
+static int accept_from_one(struct pollfd *server_poll_fds,
+			   int server_poll_fds_len)
+{
+	static const int poll_timeout_ms = 5000; /* 5s */
+	int ret;
+	int i;
+
+	ret = poll(server_poll_fds, server_poll_fds_len, poll_timeout_ms);
+	if (!ASSERT_EQ(ret, 1, "poll"))
+		return -1;
+
+	for (i = 0; i < server_poll_fds_len; i++)
+		if (server_poll_fds[i].revents & POLLIN)
+			return accept(server_poll_fds[i].fd, NULL, NULL);
+
+	return -1;
+}
+
+static int *connect_to_server(int family, int sock_type, const char *addr,
+			      __u16 port, int nr_connects, int *server_fds,
+			      int server_fds_len)
+{
+	struct pollfd *server_poll_fds = NULL;
+	int *established_socks = NULL;
+	int i;
+
+	server_poll_fds = calloc(server_fds_len, sizeof(*server_poll_fds));
+	if (!ASSERT_OK_PTR(server_poll_fds, "server_poll_fds"))
+		return NULL;
+
+	for (i = 0; i < server_fds_len; i++) {
+		server_poll_fds[i].fd = server_fds[i];
+		server_poll_fds[i].events = POLLIN;
+	}
+
+	i = 0;
+
+	established_socks = malloc(sizeof(*established_socks) * nr_connects*2);
+	if (!ASSERT_OK_PTR(established_socks, "established_socks"))
+		goto error;
+
+	while (nr_connects--) {
+		established_socks[i] = connect_to_addr_str(family, sock_type,
+							   addr, port, NULL);
+		if (!ASSERT_OK_FD(established_socks[i], "connect_to_addr_str"))
+			goto error;
+		i++;
+		established_socks[i] = accept_from_one(server_poll_fds,
+						       server_fds_len);
+		if (!ASSERT_OK_FD(established_socks[i], "accept_from_one"))
+			goto error;
+		i++;
+	}
+
+	free(server_poll_fds);
+	return established_socks;
+error:
+	free_fds(established_socks, i);
+	free(server_poll_fds);
+	return NULL;
+}
+
+static void remove_seen(int family, int sock_type, const char *addr, __u16 port,
+			int *socks, int socks_len, int *established_socks,
+			int established_socks_len, struct sock_count *counts,
+			int counts_len, struct bpf_link *link, int iter_fd)
+{
+	int close_idx;
+
+	/* Iterate through the first socks_len - 1 sockets. */
+	read_n(iter_fd, socks_len - 1, counts, counts_len);
+
+	/* Make sure we saw socks_len - 1 sockets exactly once. */
+	check_n_were_seen_once(socks, socks_len, socks_len - 1, counts,
+			       counts_len);
+
+	/* Close a socket we've already seen to remove it from the bucket. */
+	close_idx = get_seen_socket(socks, counts, counts_len);
+	if (!ASSERT_GE(close_idx, 0, "close_idx"))
+		return;
+	close(socks[close_idx]);
+	socks[close_idx] = -1;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure the last socket wasn't skipped and that there were no
+	 * repeats.
+	 */
+	check_n_were_seen_once(socks, socks_len, socks_len - 1, counts,
+			       counts_len);
+}
+
+static void remove_seen_established(int family, int sock_type, const char *addr,
+				    __u16 port, int *listen_socks,
+				    int listen_socks_len, int *established_socks,
+				    int established_socks_len,
+				    struct sock_count *counts, int counts_len,
+				    struct bpf_link *link, int iter_fd)
+{
+	int close_idx;
+
+	/* Iterate through all listening sockets. */
+	read_n(iter_fd, listen_socks_len, counts, counts_len);
+
+	/* Make sure we saw all listening sockets exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+
+	/* Leave one established socket. */
+	read_n(iter_fd, established_socks_len - 1, counts, counts_len);
+
+	/* Close a socket we've already seen to remove it from the bucket. */
+	close_idx = get_nth_socket(established_socks, established_socks_len,
+				   link, listen_socks_len + 1);
+	if (!ASSERT_GE(close_idx, 0, "close_idx"))
+		return;
+	destroy(established_socks[close_idx]);
+	established_socks[close_idx] = -1;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure the last socket wasn't skipped and that there were no
+	 * repeats.
+	 */
+	check_n_were_seen_once(established_socks, established_socks_len,
+			       established_socks_len - 1, counts, counts_len);
+}
+
+static void remove_unseen(int family, int sock_type, const char *addr,
+			  __u16 port, int *socks, int socks_len,
+			  int *established_socks, int established_socks_len,
+			  struct sock_count *counts, int counts_len,
+			  struct bpf_link *link, int iter_fd)
+{
+	int close_idx;
+
+	/* Iterate through the first socket. */
+	read_n(iter_fd, 1, counts, counts_len);
+
+	/* Make sure we saw a socket from fds. */
+	check_n_were_seen_once(socks, socks_len, 1, counts, counts_len);
+
+	/* Close what would be the next socket in the bucket to exercise the
+	 * condition where we need to skip past the first cookie we remembered.
+	 */
+	close_idx = get_nth_socket(socks, socks_len, link, 1);
+	if (!ASSERT_GE(close_idx, 0, "close_idx"))
+		return;
+	close(socks[close_idx]);
+	socks[close_idx] = -1;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure the remaining sockets were seen exactly once and that we
+	 * didn't repeat the socket that was already seen.
+	 */
+	check_n_were_seen_once(socks, socks_len, socks_len - 1, counts,
+			       counts_len);
+}
+
+static void remove_unseen_established(int family, int sock_type,
+				      const char *addr, __u16 port,
+				      int *listen_socks, int listen_socks_len,
+				      int *established_socks,
+				      int established_socks_len,
+				      struct sock_count *counts, int counts_len,
+				      struct bpf_link *link, int iter_fd)
+{
+	int close_idx;
+
+	/* Iterate through all listening sockets. */
+	read_n(iter_fd, listen_socks_len, counts, counts_len);
+
+	/* Make sure we saw all listening sockets exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+
+	/* Iterate through the first established socket. */
+	read_n(iter_fd, 1, counts, counts_len);
+
+	/* Make sure we saw one established socks. */
+	check_n_were_seen_once(established_socks, established_socks_len, 1,
+			       counts, counts_len);
+
+	/* Close what would be the next socket in the bucket to exercise the
+	 * condition where we need to skip past the first cookie we remembered.
+	 */
+	close_idx = get_nth_socket(established_socks, established_socks_len,
+				   link, listen_socks_len + 1);
+	if (!ASSERT_GE(close_idx, 0, "close_idx"))
+		return;
+
+	destroy(established_socks[close_idx]);
+	established_socks[close_idx] = -1;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure the remaining sockets were seen exactly once and that we
+	 * didn't repeat the socket that was already seen.
+	 */
+	check_n_were_seen_once(established_socks, established_socks_len,
+			       established_socks_len - 1, counts, counts_len);
+}
+
+static void remove_all(int family, int sock_type, const char *addr,
+		       __u16 port, int *socks, int socks_len,
+		       int *established_socks, int established_socks_len,
+		       struct sock_count *counts, int counts_len,
+		       struct bpf_link *link, int iter_fd)
+{
+	int close_idx, i;
+
+	/* Iterate through the first socket. */
+	read_n(iter_fd, 1, counts, counts_len);
+
+	/* Make sure we saw a socket from fds. */
+	check_n_were_seen_once(socks, socks_len, 1, counts, counts_len);
+
+	/* Close all remaining sockets to exhaust the list of saved cookies and
+	 * exit without putting any sockets into the batch on the next read.
+	 */
+	for (i = 0; i < socks_len - 1; i++) {
+		close_idx = get_nth_socket(socks, socks_len, link, 1);
+		if (!ASSERT_GE(close_idx, 0, "close_idx"))
+			return;
+		close(socks[close_idx]);
+		socks[close_idx] = -1;
+	}
+
+	/* Make sure there are no more sockets returned */
+	ASSERT_EQ(read_n(iter_fd, -1, counts, counts_len), 0, "read_n");
+}
+
+static void remove_all_established(int family, int sock_type, const char *addr,
+				   __u16 port, int *listen_socks,
+				   int listen_socks_len, int *established_socks,
+				   int established_socks_len,
+				   struct sock_count *counts, int counts_len,
+				   struct bpf_link *link, int iter_fd)
+{
+	int *close_idx = NULL;
+	int i;
+
+	/* Iterate through all listening sockets. */
+	read_n(iter_fd, listen_socks_len, counts, counts_len);
+
+	/* Make sure we saw all listening sockets exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+
+	/* Iterate through the first established socket. */
+	read_n(iter_fd, 1, counts, counts_len);
+
+	/* Make sure we saw one established socks. */
+	check_n_were_seen_once(established_socks, established_socks_len, 1,
+			       counts, counts_len);
+
+	/* Close all remaining sockets to exhaust the list of saved cookies and
+	 * exit without putting any sockets into the batch on the next read.
+	 */
+	close_idx = malloc(sizeof(int) * (established_socks_len - 1));
+	if (!ASSERT_OK_PTR(close_idx, "close_idx malloc"))
+		return;
+	for (i = 0; i < established_socks_len - 1; i++) {
+		close_idx[i] = get_nth_socket(established_socks,
+					      established_socks_len, link,
+					      listen_socks_len + i);
+		if (!ASSERT_GE(close_idx[i], 0, "close_idx"))
+			return;
+	}
+
+	for (i = 0; i < established_socks_len - 1; i++) {
+		destroy(established_socks[close_idx[i]]);
+		established_socks[close_idx[i]] = -1;
+	}
+
+	/* Make sure there are no more sockets returned */
+	ASSERT_EQ(read_n(iter_fd, -1, counts, counts_len), 0, "read_n");
+	free(close_idx);
+}
+
+static void add_some(int family, int sock_type, const char *addr, __u16 port,
+		     int *socks, int socks_len, int *established_socks,
+		     int established_socks_len, struct sock_count *counts,
+		     int counts_len, struct bpf_link *link, int iter_fd)
+{
+	int *new_socks = NULL;
+
+	/* Iterate through the first socks_len - 1 sockets. */
+	read_n(iter_fd, socks_len - 1, counts, counts_len);
+
+	/* Make sure we saw socks_len - 1 sockets exactly once. */
+	check_n_were_seen_once(socks, socks_len, socks_len - 1, counts,
+			       counts_len);
+
+	/* Double the number of sockets in the bucket. */
+	new_socks = start_reuseport_server(family, sock_type, addr, port, 0,
+					   socks_len);
+	if (!ASSERT_OK_PTR(new_socks, "start_reuseport_server"))
+		goto done;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure each of the original sockets was seen exactly once. */
+	check_n_were_seen_once(socks, socks_len, socks_len, counts,
+			       counts_len);
+done:
+	free_fds(new_socks, socks_len);
+}
+
+static void add_some_established(int family, int sock_type, const char *addr,
+				 __u16 port, int *listen_socks,
+				 int listen_socks_len, int *established_socks,
+				 int established_socks_len,
+				 struct sock_count *counts,
+				 int counts_len, struct bpf_link *link,
+				 int iter_fd)
+{
+	int *new_socks = NULL;
+
+	/* Iterate through all listening sockets. */
+	read_n(iter_fd, listen_socks_len, counts, counts_len);
+
+	/* Make sure we saw all listening sockets exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+
+	/* Iterate through the first established_socks_len - 1 sockets. */
+	read_n(iter_fd, established_socks_len - 1, counts, counts_len);
+
+	/* Make sure we saw established_socks_len - 1 sockets exactly once. */
+	check_n_were_seen_once(established_socks, established_socks_len,
+			       established_socks_len - 1, counts, counts_len);
+
+	/* Double the number of established sockets in the bucket. */
+	new_socks = connect_to_server(family, sock_type, addr, port,
+				      established_socks_len / 2, listen_socks,
+				      listen_socks_len);
+	if (!ASSERT_OK_PTR(new_socks, "connect_to_server"))
+		goto done;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure each of the original sockets was seen exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+	check_n_were_seen_once(established_socks, established_socks_len,
+			       established_socks_len, counts, counts_len);
+done:
+	free_fds(new_socks, established_socks_len);
+}
+
+static void force_realloc(int family, int sock_type, const char *addr,
+			  __u16 port, int *socks, int socks_len,
+			  int *established_socks, int established_socks_len,
+			  struct sock_count *counts, int counts_len,
+			  struct bpf_link *link, int iter_fd)
+{
+	int *new_socks = NULL;
+
+	/* Iterate through the first socket just to initialize the batch. */
+	read_n(iter_fd, 1, counts, counts_len);
+
+	/* Double the number of sockets in the bucket to force a realloc on the
+	 * next read.
+	 */
+	new_socks = start_reuseport_server(family, sock_type, addr, port, 0,
+					   socks_len);
+	if (!ASSERT_OK_PTR(new_socks, "start_reuseport_server"))
+		goto done;
+
+	/* Iterate through the rest of the sockets. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure each socket from the first set was seen exactly once. */
+	check_n_were_seen_once(socks, socks_len, socks_len, counts,
+			       counts_len);
+done:
+	free_fds(new_socks, socks_len);
+}
+
+static void force_realloc_established(int family, int sock_type,
+				      const char *addr, __u16 port,
+				      int *listen_socks, int listen_socks_len,
+				      int *established_socks,
+				      int established_socks_len,
+				      struct sock_count *counts, int counts_len,
+				      struct bpf_link *link, int iter_fd)
+{
+	/* Iterate through all sockets to trigger a realloc. */
+	read_n(iter_fd, -1, counts, counts_len);
+
+	/* Make sure each socket was seen exactly once. */
+	check_n_were_seen_once(listen_socks, listen_socks_len, listen_socks_len,
+			       counts, counts_len);
+	check_n_were_seen_once(established_socks, established_socks_len,
+			       established_socks_len, counts, counts_len);
+}
+
+struct test_case {
+	void (*test)(int family, int sock_type, const char *addr, __u16 port,
+		     int *socks, int socks_len, int *established_socks,
+		     int established_socks_len, struct sock_count *counts,
+		     int counts_len, struct bpf_link *link, int iter_fd);
+	const char *description;
+	int ehash_buckets;
+	int connections;
+	int init_socks;
+	int max_socks;
+	int sock_type;
+	int family;
+};
+
+static struct test_case resume_tests[] = {
+	{
+		.description = "udp: resume after removing a seen socket",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_DGRAM,
+		.family = AF_INET6,
+		.test = remove_seen,
+	},
+	{
+		.description = "udp: resume after removing one unseen socket",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_DGRAM,
+		.family = AF_INET6,
+		.test = remove_unseen,
+	},
+	{
+		.description = "udp: resume after removing all unseen sockets",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_DGRAM,
+		.family = AF_INET6,
+		.test = remove_all,
+	},
+	{
+		.description = "udp: resume after adding a few sockets",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_DGRAM,
+		/* Use AF_INET so that new sockets are added to the head of the
+		 * bucket's list.
+		 */
+		.family = AF_INET,
+		.test = add_some,
+	},
+	{
+		.description = "udp: force a realloc to occur",
+		.init_socks = init_batch_size,
+		.max_socks = init_batch_size * 2,
+		.sock_type = SOCK_DGRAM,
+		/* Use AF_INET6 so that new sockets are added to the tail of the
+		 * bucket's list, needing to be added to the next batch to force
+		 * a realloc.
+		 */
+		.family = AF_INET6,
+		.test = force_realloc,
+	},
+	{
+		.description = "tcp: resume after removing a seen socket (listening)",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_seen,
+	},
+	{
+		.description = "tcp: resume after removing one unseen socket (listening)",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_unseen,
+	},
+	{
+		.description = "tcp: resume after removing all unseen sockets (listening)",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_all,
+	},
+	{
+		.description = "tcp: resume after adding a few sockets (listening)",
+		.init_socks = nr_soreuse,
+		.max_socks = nr_soreuse,
+		.sock_type = SOCK_STREAM,
+		/* Use AF_INET so that new sockets are added to the head of the
+		 * bucket's list.
+		 */
+		.family = AF_INET,
+		.test = add_some,
+	},
+	{
+		.description = "tcp: force a realloc to occur (listening)",
+		.init_socks = init_batch_size,
+		.max_socks = init_batch_size * 2,
+		.sock_type = SOCK_STREAM,
+		/* Use AF_INET6 so that new sockets are added to the tail of the
+		 * bucket's list, needing to be added to the next batch to force
+		 * a realloc.
+		 */
+		.family = AF_INET6,
+		.test = force_realloc,
+	},
+	{
+		.description = "tcp: resume after removing a seen socket (established)",
+		/* Force all established sockets into one bucket */
+		.ehash_buckets = 1,
+		.connections = nr_soreuse,
+		.init_socks = nr_soreuse,
+		/* Room for connect()ed and accept()ed sockets */
+		.max_socks = nr_soreuse * 3,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_seen_established,
+	},
+	{
+		.description = "tcp: resume after removing one unseen socket (established)",
+		/* Force all established sockets into one bucket */
+		.ehash_buckets = 1,
+		.connections = nr_soreuse,
+		.init_socks = nr_soreuse,
+		/* Room for connect()ed and accept()ed sockets */
+		.max_socks = nr_soreuse * 3,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_unseen_established,
+	},
+	{
+		.description = "tcp: resume after removing all unseen sockets (established)",
+		/* Force all established sockets into one bucket */
+		.ehash_buckets = 1,
+		.connections = nr_soreuse,
+		.init_socks = nr_soreuse,
+		/* Room for connect()ed and accept()ed sockets */
+		.max_socks = nr_soreuse * 3,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = remove_all_established,
+	},
+	{
+		.description = "tcp: resume after adding a few sockets (established)",
+		/* Force all established sockets into one bucket */
+		.ehash_buckets = 1,
+		.connections = nr_soreuse,
+		.init_socks = nr_soreuse,
+		/* Room for connect()ed and accept()ed sockets */
+		.max_socks = nr_soreuse * 3,
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = add_some_established,
+	},
+	{
+		.description = "tcp: force a realloc to occur (established)",
+		/* Force all established sockets into one bucket */
+		.ehash_buckets = 1,
+		/* Bucket size will need to double when going from listening to
+		 * established sockets.
+		 */
+		.connections = init_batch_size,
+		.init_socks = nr_soreuse,
+		/* Room for connect()ed and accept()ed sockets */
+		.max_socks = nr_soreuse + (init_batch_size * 2),
+		.sock_type = SOCK_STREAM,
+		.family = AF_INET6,
+		.test = force_realloc_established,
+	},
+};
+
+static void do_resume_test(struct test_case *tc)
+{
+	struct sock_iter_batch *skel = NULL;
+	struct sock_count *counts = NULL;
+	static const __u16 port = 10001;
+	struct nstoken *nstoken = NULL;
+	struct bpf_link *link = NULL;
+	int *established_fds = NULL;
+	int err, iter_fd = -1;
+	const char *addr;
+	int *fds = NULL;
+
+	if (tc->ehash_buckets) {
+		SYS_NOFAIL("ip netns del " TEST_CHILD_NS);
+		SYS(done, "sysctl -wq net.ipv4.tcp_child_ehash_entries=%d",
+		    tc->ehash_buckets);
+		SYS(done, "ip netns add %s", TEST_CHILD_NS);
+		SYS(done, "ip -net %s link set dev lo up", TEST_CHILD_NS);
+		nstoken = open_netns(TEST_CHILD_NS);
+		if (!ASSERT_OK_PTR(nstoken, "open_child_netns"))
+			goto done;
+	}
+
+	counts = calloc(tc->max_socks, sizeof(*counts));
+	if (!ASSERT_OK_PTR(counts, "counts"))
+		goto done;
+	skel = sock_iter_batch__open();
+	if (!ASSERT_OK_PTR(skel, "sock_iter_batch__open"))
+		goto done;
+
+	/* Prepare a bucket of sockets in the kernel hashtable */
+	addr = tc->family == AF_INET6 ? "::1" : "127.0.0.1";
+	fds = start_reuseport_server(tc->family, tc->sock_type, addr, port, 0,
+				     tc->init_socks);
+	if (!ASSERT_OK_PTR(fds, "start_reuseport_server"))
+		goto done;
+	if (tc->connections) {
+		established_fds = connect_to_server(tc->family, tc->sock_type,
+						    addr, port,
+						    tc->connections, fds,
+						    tc->init_socks);
+		if (!ASSERT_OK_PTR(established_fds, "connect_to_server"))
+			goto done;
+	}
+	skel->rodata->ports[0] = 0;
+	skel->rodata->ports[1] = 0;
+	skel->rodata->sf = tc->family;
+	skel->rodata->ss = 0;
+
+	err = sock_iter_batch__load(skel);
+	if (!ASSERT_OK(err, "sock_iter_batch__load"))
+		goto done;
+
+	link = bpf_program__attach_iter(tc->sock_type == SOCK_STREAM ?
+					skel->progs.iter_tcp_soreuse :
+					skel->progs.iter_udp_soreuse,
+					NULL);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_iter"))
+		goto done;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_OK_FD(iter_fd, "bpf_iter_create"))
+		goto done;
+
+	tc->test(tc->family, tc->sock_type, addr, port, fds, tc->init_socks,
+		 established_fds, tc->connections*2, counts, tc->max_socks,
+		 link, iter_fd);
+done:
+	close_netns(nstoken);
+	SYS_NOFAIL("ip netns del " TEST_CHILD_NS);
+	SYS_NOFAIL("sysctl -w net.ipv4.tcp_child_ehash_entries=0");
+	free(counts);
+	free_fds(fds, tc->init_socks);
+	free_fds(established_fds, tc->connections*2);
+	if (iter_fd >= 0)
+		close(iter_fd);
+	bpf_link__destroy(link);
+	sock_iter_batch__destroy(skel);
+}
+
+static void do_resume_tests(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(resume_tests); i++) {
+		if (test__start_subtest(resume_tests[i].description)) {
+			do_resume_test(&resume_tests[i]);
+		}
+	}
+}
+
+static void do_test(int sock_type, bool onebyone)
+{
+	int err, i, nread, to_read, total_read, iter_fd = -1;
+	struct iter_out outputs[nr_soreuse];
+	struct bpf_link *link = NULL;
+	struct sock_iter_batch *skel;
+	int first_idx, second_idx;
+	int *fds[2] = {};
+
+	skel = sock_iter_batch__open();
+	if (!ASSERT_OK_PTR(skel, "sock_iter_batch__open"))
+		return;
+
+	/* Prepare 2 buckets of sockets in the kernel hashtable */
+	for (i = 0; i < ARRAY_SIZE(fds); i++) {
+		int local_port;
+
+		fds[i] = start_reuseport_server(AF_INET6, sock_type, "::1", 0, 0,
+						nr_soreuse);
+		if (!ASSERT_OK_PTR(fds[i], "start_reuseport_server"))
+			goto done;
+		local_port = get_socket_local_port(*fds[i]);
+		if (!ASSERT_GE(local_port, 0, "get_socket_local_port"))
+			goto done;
+		skel->rodata->ports[i] = ntohs(local_port);
+	}
+	skel->rodata->sf = AF_INET6;
+	if (sock_type == SOCK_STREAM)
+		skel->rodata->ss = TCP_LISTEN;
+
+	err = sock_iter_batch__load(skel);
+	if (!ASSERT_OK(err, "sock_iter_batch__load"))
+		goto done;
+
+	link = bpf_program__attach_iter(sock_type == SOCK_STREAM ?
+					skel->progs.iter_tcp_soreuse :
+					skel->progs.iter_udp_soreuse,
+					NULL);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_iter"))
+		goto done;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "bpf_iter_create"))
+		goto done;
+
+	/* Test reading a bucket (either from fds[0] or fds[1]).
+	 * Only read "nr_soreuse - 1" number of sockets
+	 * from a bucket and leave one socket out from
+	 * that bucket on purpose.
+	 */
+	to_read = (nr_soreuse - 1) * sizeof(*outputs);
+	total_read = 0;
+	first_idx = -1;
+	do {
+		nread = read(iter_fd, outputs, onebyone ? sizeof(*outputs) : to_read);
+		if (nread <= 0 || nread % sizeof(*outputs))
+			break;
+		total_read += nread;
+
+		if (first_idx == -1)
+			first_idx = outputs[0].idx;
+		for (i = 0; i < nread / sizeof(*outputs); i++)
+			ASSERT_EQ(outputs[i].idx, first_idx, "first_idx");
+	} while (total_read < to_read);
+	ASSERT_EQ(nread, onebyone ? sizeof(*outputs) : to_read, "nread");
+	ASSERT_EQ(total_read, to_read, "total_read");
+
+	free_fds(fds[first_idx], nr_soreuse);
+	fds[first_idx] = NULL;
+
+	/* Read the "whole" second bucket */
+	to_read = nr_soreuse * sizeof(*outputs);
+	total_read = 0;
+	second_idx = !first_idx;
+	do {
+		nread = read(iter_fd, outputs, onebyone ? sizeof(*outputs) : to_read);
+		if (nread <= 0 || nread % sizeof(*outputs))
+			break;
+		total_read += nread;
+
+		for (i = 0; i < nread / sizeof(*outputs); i++)
+			ASSERT_EQ(outputs[i].idx, second_idx, "second_idx");
+	} while (total_read <= to_read);
+	ASSERT_EQ(nread, 0, "nread");
+	/* Both so_reuseport ports should be in different buckets, so
+	 * total_read must equal to the expected to_read.
+	 *
+	 * For a very unlikely case, both ports collide at the same bucket,
+	 * the bucket offset (i.e. 3) will be skipped and it cannot
+	 * expect the to_read number of bytes.
+	 */
+	if (skel->bss->bucket[0] != skel->bss->bucket[1])
+		ASSERT_EQ(total_read, to_read, "total_read");
+
+done:
+	for (i = 0; i < ARRAY_SIZE(fds); i++)
+		free_fds(fds[i], nr_soreuse);
+	if (iter_fd < 0)
+		close(iter_fd);
+	bpf_link__destroy(link);
+	sock_iter_batch__destroy(skel);
+}
+
+void test_sock_iter_batch(void)
+{
+	struct nstoken *nstoken = NULL;
+
+	SYS_NOFAIL("ip netns del " TEST_NS);
+	SYS(done, "ip netns add %s", TEST_NS);
+	SYS(done, "ip -net %s link set dev lo up", TEST_NS);
+
+	nstoken = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto done;
+
+	if (test__start_subtest("tcp")) {
+		do_test(SOCK_STREAM, true);
+		do_test(SOCK_STREAM, false);
+	}
+	if (test__start_subtest("udp")) {
+		do_test(SOCK_DGRAM, true);
+		do_test(SOCK_DGRAM, false);
+	}
+	do_resume_tests();
+	close_netns(nstoken);
+
+done:
+	SYS_NOFAIL("ip netns del " TEST_NS);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c b/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c
new file mode 100644
index 000000000000..788135c9c673
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sock_post_bind.c
@@ -0,0 +1,426 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#define TEST_NS "sock_post_bind"
+
+static char bpf_log_buf[4096];
+
+static struct sock_post_bind_test {
+	const char			*descr;
+	/* BPF prog properties */
+	const struct bpf_insn		insns[64];
+	enum bpf_attach_type		attach_type;
+	enum bpf_attach_type		expected_attach_type;
+	/* Socket properties */
+	int				domain;
+	int				type;
+	/* Endpoint to bind() to */
+	const char *ip;
+	unsigned short port;
+	unsigned short port_retry;
+
+	/* Expected test result */
+	enum {
+		ATTACH_REJECT,
+		BIND_REJECT,
+		SUCCESS,
+		RETRY_SUCCESS,
+		RETRY_REJECT
+	} result;
+} tests[] = {
+	{
+		.descr = "attach type mismatch bind4 vs bind6",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.result = ATTACH_REJECT,
+	},
+	{
+		.descr = "attach type mismatch bind6 vs bind4",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.result = ATTACH_REJECT,
+	},
+	{
+		.descr = "attach type mismatch default vs bind4",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = 0,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.result = ATTACH_REJECT,
+	},
+	{
+		.descr = "attach type mismatch bind6 vs sock_create",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET_SOCK_CREATE,
+		.result = ATTACH_REJECT,
+	},
+	{
+		.descr = "bind4 reject all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.ip = "0.0.0.0",
+		.result = BIND_REJECT,
+	},
+	{
+		.descr = "bind6 reject all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.ip = "::",
+		.result = BIND_REJECT,
+	},
+	{
+		.descr = "bind6 deny specific IP & port",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* if (ip == expected && port == expected) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_ip6[3])),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+				    __bpf_constant_ntohl(0x00000001), 4),
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_port)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.ip = "::1",
+		.port = 8193,
+		.result = BIND_REJECT,
+	},
+	{
+		.descr = "bind4 allow specific IP & port",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* if (ip == expected && port == expected) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_ip4)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+				    __bpf_constant_ntohl(0x7F000001), 4),
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_port)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.ip = "127.0.0.1",
+		.port = 4098,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "bind4 deny specific IP & port of TCP, and retry",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* if (ip == expected && port == expected) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_ip4)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+				    __bpf_constant_ntohl(0x7F000001), 4),
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_port)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.ip = "127.0.0.1",
+		.port = 4098,
+		.port_retry = 5000,
+		.result = RETRY_SUCCESS,
+	},
+	{
+		.descr = "bind4 deny specific IP & port of UDP, and retry",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* if (ip == expected && port == expected) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_ip4)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+				    __bpf_constant_ntohl(0x7F000001), 4),
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_port)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x1002, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+		.ip = "127.0.0.1",
+		.port = 4098,
+		.port_retry = 5000,
+		.result = RETRY_SUCCESS,
+	},
+	{
+		.descr = "bind6 deny specific IP & port, and retry",
+		.insns = {
+			BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+
+			/* if (ip == expected && port == expected) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_ip6[3])),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7,
+				    __bpf_constant_ntohl(0x00000001), 4),
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_6,
+				    offsetof(struct bpf_sock, src_port)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x2001, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.ip = "::1",
+		.port = 8193,
+		.port_retry = 9000,
+		.result = RETRY_SUCCESS,
+	},
+	{
+		.descr = "bind4 allow all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.attach_type = BPF_CGROUP_INET4_POST_BIND,
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.ip = "0.0.0.0",
+		.result = SUCCESS,
+	},
+	{
+		.descr = "bind6 allow all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.expected_attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.attach_type = BPF_CGROUP_INET6_POST_BIND,
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.ip = "::",
+		.result = SUCCESS,
+	},
+};
+
+static int load_prog(const struct bpf_insn *insns,
+		     enum bpf_attach_type expected_attach_type)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		    .expected_attach_type = expected_attach_type,
+		    .log_level = 2,
+		    .log_buf = bpf_log_buf,
+		    .log_size = sizeof(bpf_log_buf),
+	);
+	int fd, insns_cnt = 0;
+
+	for (;
+	     insns[insns_cnt].code != (BPF_JMP | BPF_EXIT);
+	     insns_cnt++) {
+	}
+	insns_cnt++;
+
+	fd = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SOCK, NULL, "GPL", insns,
+			   insns_cnt, &opts);
+	if (fd < 0)
+		fprintf(stderr, "%s\n", bpf_log_buf);
+
+	return fd;
+}
+
+static int bind_sock(int domain, int type, const char *ip,
+		     unsigned short port, unsigned short port_retry)
+{
+	struct sockaddr_storage addr;
+	struct sockaddr_in6 *addr6;
+	struct sockaddr_in *addr4;
+	int sockfd = -1;
+	socklen_t len;
+	int res = SUCCESS;
+
+	sockfd = socket(domain, type, 0);
+	if (sockfd < 0)
+		goto err;
+
+	memset(&addr, 0, sizeof(addr));
+
+	if (domain == AF_INET) {
+		len = sizeof(struct sockaddr_in);
+		addr4 = (struct sockaddr_in *)&addr;
+		addr4->sin_family = domain;
+		addr4->sin_port = htons(port);
+		if (inet_pton(domain, ip, (void *)&addr4->sin_addr) != 1)
+			goto err;
+	} else if (domain == AF_INET6) {
+		len = sizeof(struct sockaddr_in6);
+		addr6 = (struct sockaddr_in6 *)&addr;
+		addr6->sin6_family = domain;
+		addr6->sin6_port = htons(port);
+		if (inet_pton(domain, ip, (void *)&addr6->sin6_addr) != 1)
+			goto err;
+	} else {
+		goto err;
+	}
+
+	if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
+		/* sys_bind() may fail for different reasons, errno has to be
+		 * checked to confirm that BPF program rejected it.
+		 */
+		if (errno != EPERM)
+			goto err;
+		if (port_retry)
+			goto retry;
+		res = BIND_REJECT;
+		goto out;
+	}
+
+	goto out;
+retry:
+	if (domain == AF_INET)
+		addr4->sin_port = htons(port_retry);
+	else
+		addr6->sin6_port = htons(port_retry);
+	if (bind(sockfd, (const struct sockaddr *)&addr, len) == -1) {
+		if (errno != EPERM)
+			goto err;
+		res = RETRY_REJECT;
+	} else {
+		res = RETRY_SUCCESS;
+	}
+	goto out;
+err:
+	res = -1;
+out:
+	close(sockfd);
+	return res;
+}
+
+static int run_test(int cgroup_fd, struct sock_post_bind_test *test)
+{
+	int err, prog_fd, res, ret = 0;
+
+	prog_fd = load_prog(test->insns, test->expected_attach_type);
+	if (prog_fd < 0)
+		goto err;
+
+	err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0);
+	if (err < 0) {
+		if (test->result == ATTACH_REJECT)
+			goto out;
+		else
+			goto err;
+	}
+
+	res = bind_sock(test->domain, test->type, test->ip, test->port,
+			test->port_retry);
+	if (res > 0 && test->result == res)
+		goto out;
+err:
+	ret = -1;
+out:
+	/* Detaching w/o checking return code: best effort attempt. */
+	if (prog_fd != -1)
+		bpf_prog_detach(cgroup_fd, test->attach_type);
+	close(prog_fd);
+	return ret;
+}
+
+void test_sock_post_bind(void)
+{
+	struct netns_obj *ns;
+	int cgroup_fd;
+	int i;
+
+	cgroup_fd = test__join_cgroup("/post_bind");
+	if (!ASSERT_OK_FD(cgroup_fd, "join_cgroup"))
+		return;
+
+	ns = netns_new(TEST_NS, true);
+	if (!ASSERT_OK_PTR(ns, "netns_new"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (!test__start_subtest(tests[i].descr))
+			continue;
+
+		ASSERT_OK(run_test(cgroup_fd, &tests[i]), tests[i].descr);
+	}
+
+cleanup:
+	netns_free(ns);
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/socket_cookie.c b/tools/testing/selftests/bpf/prog_tests/socket_cookie.c
new file mode 100644
index 000000000000..232db28dde18
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/socket_cookie.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Google LLC.
+// Copyright (c) 2018 Facebook
+
+#include <test_progs.h>
+#include "socket_cookie_prog.skel.h"
+#include "network_helpers.h"
+
+static int duration;
+
+struct socket_cookie {
+	__u64 cookie_key;
+	__u32 cookie_value;
+};
+
+void test_socket_cookie(void)
+{
+	int server_fd = 0, client_fd = 0, cgroup_fd = 0, err = 0;
+	socklen_t addr_len = sizeof(struct sockaddr_in6);
+	struct socket_cookie_prog *skel;
+	__u32 cookie_expected_value;
+	struct sockaddr_in6 addr;
+	struct socket_cookie val;
+
+	skel = socket_cookie_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	cgroup_fd = test__join_cgroup("/socket_cookie");
+	if (CHECK(cgroup_fd < 0, "join_cgroup", "cgroup creation failed\n"))
+		goto out;
+
+	skel->links.set_cookie = bpf_program__attach_cgroup(
+		skel->progs.set_cookie, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.set_cookie, "prog_attach"))
+		goto close_cgroup_fd;
+
+	skel->links.update_cookie_sockops = bpf_program__attach_cgroup(
+		skel->progs.update_cookie_sockops, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.update_cookie_sockops, "prog_attach"))
+		goto close_cgroup_fd;
+
+	skel->links.update_cookie_tracing = bpf_program__attach(
+		skel->progs.update_cookie_tracing);
+	if (!ASSERT_OK_PTR(skel->links.update_cookie_tracing, "prog_attach"))
+		goto close_cgroup_fd;
+
+	server_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	if (CHECK(server_fd < 0, "start_server", "errno %d\n", errno))
+		goto close_cgroup_fd;
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (CHECK(client_fd < 0, "connect_to_fd", "errno %d\n", errno))
+		goto close_server_fd;
+
+	err = bpf_map_lookup_elem(bpf_map__fd(skel->maps.socket_cookies),
+				  &client_fd, &val);
+	if (!ASSERT_OK(err, "map_lookup(socket_cookies)"))
+		goto close_client_fd;
+
+	err = getsockname(client_fd, (struct sockaddr *)&addr, &addr_len);
+	if (!ASSERT_OK(err, "getsockname"))
+		goto close_client_fd;
+
+	cookie_expected_value = (ntohs(addr.sin6_port) << 8) | 0xFF;
+	ASSERT_EQ(val.cookie_value, cookie_expected_value, "cookie_value");
+
+close_client_fd:
+	close(client_fd);
+close_server_fd:
+	close(server_fd);
+close_cgroup_fd:
+	close(cgroup_fd);
+out:
+	socket_cookie_prog__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/socket_helpers.h b/tools/testing/selftests/bpf/prog_tests/socket_helpers.h
new file mode 100644
index 000000000000..0d59503a0c73
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/socket_helpers.h
@@ -0,0 +1,473 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __SOCKET_HELPERS__
+#define __SOCKET_HELPERS__
+
+#include <sys/un.h>
+#include <linux/vm_sockets.h>
+
+/* include/linux/net.h */
+#define SOCK_TYPE_MASK 0xf
+
+#define IO_TIMEOUT_SEC 30
+#define MAX_STRERR_LEN 256
+
+/* workaround for older vm_sockets.h */
+#ifndef VMADDR_CID_LOCAL
+#define VMADDR_CID_LOCAL 1
+#endif
+
+/* include/linux/compiler_types.h */
+#if __STDC_VERSION__ < 202311L && !defined(auto)
+# define auto __auto_type
+#endif
+
+/* include/linux/cleanup.h */
+#define __get_and_null(p, nullvalue)                                           \
+	({                                                                     \
+		auto __ptr = &(p);					       \
+		auto __val = *__ptr;                                           \
+		*__ptr = nullvalue;                                            \
+		__val;                                                         \
+	})
+
+#define take_fd(fd) __get_and_null(fd, -EBADF)
+
+/* Wrappers that fail the test on error and report it. */
+
+#define _FAIL(errnum, fmt...)                                                  \
+	({                                                                     \
+		error_at_line(0, (errnum), __func__, __LINE__, fmt);           \
+		CHECK_FAIL(true);                                              \
+	})
+#define FAIL(fmt...) _FAIL(0, fmt)
+#define FAIL_ERRNO(fmt...) _FAIL(errno, fmt)
+#define FAIL_LIBBPF(err, msg)                                                  \
+	({                                                                     \
+		char __buf[MAX_STRERR_LEN];                                    \
+		libbpf_strerror((err), __buf, sizeof(__buf));                  \
+		FAIL("%s: %s", (msg), __buf);                                  \
+	})
+
+
+#define xaccept_nonblock(fd, addr, len)                                        \
+	({                                                                     \
+		int __ret =                                                    \
+			accept_timeout((fd), (addr), (len), IO_TIMEOUT_SEC);   \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("accept");                                  \
+		__ret;                                                         \
+	})
+
+#define xbind(fd, addr, len)                                                   \
+	({                                                                     \
+		int __ret = bind((fd), (addr), (len));                         \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("bind");                                    \
+		__ret;                                                         \
+	})
+
+#define xclose(fd)                                                             \
+	({                                                                     \
+		int __ret = close((fd));                                       \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("close");                                   \
+		__ret;                                                         \
+	})
+
+#define xconnect(fd, addr, len)                                                \
+	({                                                                     \
+		int __ret = connect((fd), (addr), (len));                      \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("connect");                                 \
+		__ret;                                                         \
+	})
+
+#define xgetsockname(fd, addr, len)                                            \
+	({                                                                     \
+		int __ret = getsockname((fd), (addr), (len));                  \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("getsockname");                             \
+		__ret;                                                         \
+	})
+
+#define xgetsockopt(fd, level, name, val, len)                                 \
+	({                                                                     \
+		int __ret = getsockopt((fd), (level), (name), (val), (len));   \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("getsockopt(" #name ")");                   \
+		__ret;                                                         \
+	})
+
+#define xlisten(fd, backlog)                                                   \
+	({                                                                     \
+		int __ret = listen((fd), (backlog));                           \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("listen");                                  \
+		__ret;                                                         \
+	})
+
+#define xsetsockopt(fd, level, name, val, len)                                 \
+	({                                                                     \
+		int __ret = setsockopt((fd), (level), (name), (val), (len));   \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("setsockopt(" #name ")");                   \
+		__ret;                                                         \
+	})
+
+#define xsend(fd, buf, len, flags)                                             \
+	({                                                                     \
+		ssize_t __ret = send((fd), (buf), (len), (flags));             \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("send");                                    \
+		__ret;                                                         \
+	})
+
+#define xrecv_nonblock(fd, buf, len, flags)                                    \
+	({                                                                     \
+		ssize_t __ret = recv_timeout((fd), (buf), (len), (flags),      \
+					     IO_TIMEOUT_SEC);                  \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("recv");                                    \
+		__ret;                                                         \
+	})
+
+#define xsocket(family, sotype, flags)                                         \
+	({                                                                     \
+		int __ret = socket(family, sotype, flags);                     \
+		if (__ret == -1)                                               \
+			FAIL_ERRNO("socket");                                  \
+		__ret;                                                         \
+	})
+
+static inline void close_fd(int *fd)
+{
+	if (*fd >= 0)
+		xclose(*fd);
+}
+
+#define __close_fd __attribute__((cleanup(close_fd)))
+
+static inline struct sockaddr *sockaddr(struct sockaddr_storage *ss)
+{
+	return (struct sockaddr *)ss;
+}
+
+static inline void init_addr_loopback4(struct sockaddr_storage *ss,
+				       socklen_t *len)
+{
+	struct sockaddr_in *addr4 = memset(ss, 0, sizeof(*ss));
+
+	addr4->sin_family = AF_INET;
+	addr4->sin_port = 0;
+	addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	*len = sizeof(*addr4);
+}
+
+static inline void init_addr_loopback6(struct sockaddr_storage *ss,
+				       socklen_t *len)
+{
+	struct sockaddr_in6 *addr6 = memset(ss, 0, sizeof(*ss));
+
+	addr6->sin6_family = AF_INET6;
+	addr6->sin6_port = 0;
+	addr6->sin6_addr = in6addr_loopback;
+	*len = sizeof(*addr6);
+}
+
+static inline void init_addr_loopback_unix(struct sockaddr_storage *ss,
+					   socklen_t *len)
+{
+	struct sockaddr_un *addr = memset(ss, 0, sizeof(*ss));
+
+	addr->sun_family = AF_UNIX;
+	*len = sizeof(sa_family_t);
+}
+
+static inline void init_addr_loopback_vsock(struct sockaddr_storage *ss,
+					    socklen_t *len)
+{
+	struct sockaddr_vm *addr = memset(ss, 0, sizeof(*ss));
+
+	addr->svm_family = AF_VSOCK;
+	addr->svm_port = VMADDR_PORT_ANY;
+	addr->svm_cid = VMADDR_CID_LOCAL;
+	*len = sizeof(*addr);
+}
+
+static inline void init_addr_loopback(int family, struct sockaddr_storage *ss,
+				      socklen_t *len)
+{
+	switch (family) {
+	case AF_INET:
+		init_addr_loopback4(ss, len);
+		return;
+	case AF_INET6:
+		init_addr_loopback6(ss, len);
+		return;
+	case AF_UNIX:
+		init_addr_loopback_unix(ss, len);
+		return;
+	case AF_VSOCK:
+		init_addr_loopback_vsock(ss, len);
+		return;
+	default:
+		FAIL("unsupported address family %d", family);
+	}
+}
+
+static inline int enable_reuseport(int s, int progfd)
+{
+	int err, one = 1;
+
+	err = xsetsockopt(s, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one));
+	if (err)
+		return -1;
+	err = xsetsockopt(s, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &progfd,
+			  sizeof(progfd));
+	if (err)
+		return -1;
+
+	return 0;
+}
+
+static inline int socket_loopback_reuseport(int family, int sotype, int progfd)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = 0;
+	int err, s;
+
+	init_addr_loopback(family, &addr, &len);
+
+	s = xsocket(family, sotype, 0);
+	if (s == -1)
+		return -1;
+
+	if (progfd >= 0)
+		enable_reuseport(s, progfd);
+
+	err = xbind(s, sockaddr(&addr), len);
+	if (err)
+		goto close;
+
+	if (sotype & SOCK_DGRAM)
+		return s;
+
+	err = xlisten(s, SOMAXCONN);
+	if (err)
+		goto close;
+
+	return s;
+close:
+	xclose(s);
+	return -1;
+}
+
+static inline int socket_loopback(int family, int sotype)
+{
+	return socket_loopback_reuseport(family, sotype, -1);
+}
+
+static inline int poll_connect(int fd, unsigned int timeout_sec)
+{
+	struct timeval timeout = { .tv_sec = timeout_sec };
+	fd_set wfds;
+	int r, eval;
+	socklen_t esize = sizeof(eval);
+
+	FD_ZERO(&wfds);
+	FD_SET(fd, &wfds);
+
+	r = select(fd + 1, NULL, &wfds, NULL, &timeout);
+	if (r == 0)
+		errno = ETIME;
+	if (r != 1)
+		return -1;
+
+	if (getsockopt(fd, SOL_SOCKET, SO_ERROR, &eval, &esize) < 0)
+		return -1;
+	if (eval != 0) {
+		errno = eval;
+		return -1;
+	}
+
+	return 0;
+}
+
+static inline int poll_read(int fd, unsigned int timeout_sec)
+{
+	struct timeval timeout = { .tv_sec = timeout_sec };
+	fd_set rfds;
+	int r;
+
+	FD_ZERO(&rfds);
+	FD_SET(fd, &rfds);
+
+	r = select(fd + 1, &rfds, NULL, NULL, &timeout);
+	if (r == 0)
+		errno = ETIME;
+
+	return r == 1 ? 0 : -1;
+}
+
+static inline int accept_timeout(int fd, struct sockaddr *addr, socklen_t *len,
+				 unsigned int timeout_sec)
+{
+	if (poll_read(fd, timeout_sec))
+		return -1;
+
+	return accept(fd, addr, len);
+}
+
+static inline int recv_timeout(int fd, void *buf, size_t len, int flags,
+			       unsigned int timeout_sec)
+{
+	if (poll_read(fd, timeout_sec))
+		return -1;
+
+	return recv(fd, buf, len, flags);
+}
+
+
+static inline int create_pair(int family, int sotype, int *p0, int *p1)
+{
+	__close_fd int s, c = -1, p = -1;
+	struct sockaddr_storage addr;
+	socklen_t len;
+	int err;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return s;
+
+	c = xsocket(family, sotype, 0);
+	if (c < 0)
+		return c;
+
+	init_addr_loopback(family, &addr, &len);
+	err = xbind(c, sockaddr(&addr), len);
+	if (err)
+		return err;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		return err;
+
+	err = connect(c, sockaddr(&addr), len);
+	if (err) {
+		if (errno != EINPROGRESS) {
+			FAIL_ERRNO("connect");
+			return err;
+		}
+
+		err = poll_connect(c, IO_TIMEOUT_SEC);
+		if (err) {
+			FAIL_ERRNO("poll_connect");
+			return err;
+		}
+	}
+
+	switch (sotype & SOCK_TYPE_MASK) {
+	case SOCK_DGRAM:
+		err = xgetsockname(c, sockaddr(&addr), &len);
+		if (err)
+			return err;
+
+		err = xconnect(s, sockaddr(&addr), len);
+		if (err)
+			return err;
+
+		*p0 = take_fd(s);
+		break;
+	case SOCK_STREAM:
+	case SOCK_SEQPACKET:
+		p = xaccept_nonblock(s, NULL, NULL);
+		if (p < 0)
+			return p;
+
+		*p0 = take_fd(p);
+		break;
+	default:
+		FAIL("Unsupported socket type %#x", sotype);
+		return -EOPNOTSUPP;
+	}
+
+	*p1 = take_fd(c);
+	return 0;
+}
+
+static inline int create_socket_pairs(int family, int sotype, int *c0, int *c1,
+				      int *p0, int *p1)
+{
+	int err;
+
+	err = create_pair(family, sotype, c0, p0);
+	if (err)
+		return err;
+
+	err = create_pair(family, sotype, c1, p1);
+	if (err) {
+		close(*c0);
+		close(*p0);
+	}
+
+	return err;
+}
+
+static inline const char *socket_kind_to_str(int sock_fd)
+{
+	socklen_t opt_len;
+	int domain, type;
+
+	opt_len = sizeof(domain);
+	if (getsockopt(sock_fd, SOL_SOCKET, SO_DOMAIN, &domain, &opt_len))
+		FAIL_ERRNO("getsockopt(SO_DOMAIN)");
+
+	opt_len = sizeof(type);
+	if (getsockopt(sock_fd, SOL_SOCKET, SO_TYPE, &type, &opt_len))
+		FAIL_ERRNO("getsockopt(SO_TYPE)");
+
+	switch (domain) {
+	case AF_INET:
+		switch (type) {
+		case SOCK_STREAM:
+			return "tcp4";
+		case SOCK_DGRAM:
+			return "udp4";
+		}
+		break;
+	case AF_INET6:
+		switch (type) {
+		case SOCK_STREAM:
+			return "tcp6";
+		case SOCK_DGRAM:
+			return "udp6";
+		}
+		break;
+	case AF_UNIX:
+		switch (type) {
+		case SOCK_STREAM:
+			return "u_str";
+		case SOCK_DGRAM:
+			return "u_dgr";
+		case SOCK_SEQPACKET:
+			return "u_seq";
+		}
+		break;
+	case AF_VSOCK:
+		switch (type) {
+		case SOCK_STREAM:
+			return "v_str";
+		case SOCK_DGRAM:
+			return "v_dgr";
+		case SOCK_SEQPACKET:
+			return "v_seq";
+		}
+		break;
+	}
+
+	return "???";
+}
+
+#endif // __SOCKET_HELPERS__
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
new file mode 100644
index 000000000000..1e3e4392dcca
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
@@ -0,0 +1,1111 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+#include <error.h>
+#include <netinet/tcp.h>
+#include <sys/epoll.h>
+
+#include "test_progs.h"
+#include "test_skmsg_load_helpers.skel.h"
+#include "test_sockmap_update.skel.h"
+#include "test_sockmap_invalid_update.skel.h"
+#include "test_sockmap_skb_verdict_attach.skel.h"
+#include "test_sockmap_progs_query.skel.h"
+#include "test_sockmap_pass_prog.skel.h"
+#include "test_sockmap_drop_prog.skel.h"
+#include "test_sockmap_change_tail.skel.h"
+#include "bpf_iter_sockmap.skel.h"
+
+#include "sockmap_helpers.h"
+
+#define TCP_REPAIR		19	/* TCP sock is under repair right now */
+
+#define TCP_REPAIR_ON		1
+#define TCP_REPAIR_OFF_NO_WP	-1	/* Turn off without window probes */
+
+static int connected_socket_v4(void)
+{
+	struct sockaddr_in addr = {
+		.sin_family = AF_INET,
+		.sin_port = htons(80),
+		.sin_addr = { inet_addr("127.0.0.1") },
+	};
+	socklen_t len = sizeof(addr);
+	int s, repair, err;
+
+	s = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(s, 0, "socket"))
+		goto error;
+
+	repair = TCP_REPAIR_ON;
+	err = setsockopt(s, SOL_TCP, TCP_REPAIR, &repair, sizeof(repair));
+	if (!ASSERT_OK(err, "setsockopt(TCP_REPAIR)"))
+		goto error;
+
+	err = connect(s, (struct sockaddr *)&addr, len);
+	if (!ASSERT_OK(err, "connect"))
+		goto error;
+
+	repair = TCP_REPAIR_OFF_NO_WP;
+	err = setsockopt(s, SOL_TCP, TCP_REPAIR, &repair, sizeof(repair));
+	if (!ASSERT_OK(err, "setsockopt(TCP_REPAIR)"))
+		goto error;
+
+	return s;
+error:
+	perror(__func__);
+	close(s);
+	return -1;
+}
+
+static void compare_cookies(struct bpf_map *src, struct bpf_map *dst)
+{
+	__u32 i, max_entries = bpf_map__max_entries(src);
+	int err, src_fd, dst_fd;
+
+	src_fd = bpf_map__fd(src);
+	dst_fd = bpf_map__fd(dst);
+
+	for (i = 0; i < max_entries; i++) {
+		__u64 src_cookie, dst_cookie;
+
+		err = bpf_map_lookup_elem(src_fd, &i, &src_cookie);
+		if (err && errno == ENOENT) {
+			err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie);
+			ASSERT_ERR(err, "map_lookup_elem(dst)");
+			ASSERT_EQ(errno, ENOENT, "map_lookup_elem(dst)");
+			continue;
+		}
+		if (!ASSERT_OK(err, "lookup_elem(src)"))
+			continue;
+
+		err = bpf_map_lookup_elem(dst_fd, &i, &dst_cookie);
+		if (!ASSERT_OK(err, "lookup_elem(dst)"))
+			continue;
+
+		ASSERT_EQ(dst_cookie, src_cookie, "cookie mismatch");
+	}
+}
+
+/* Create a map, populate it with one socket, and free the map. */
+static void test_sockmap_create_update_free(enum bpf_map_type map_type)
+{
+	const int zero = 0;
+	int s, map, err;
+
+	s = connected_socket_v4();
+	if (!ASSERT_GE(s, 0, "connected_socket_v4"))
+		return;
+
+	map = bpf_map_create(map_type, NULL, sizeof(int), sizeof(int), 1, NULL);
+	if (!ASSERT_GE(map, 0, "bpf_map_create"))
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &s, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update"))
+		goto out;
+
+out:
+	close(map);
+	close(s);
+}
+
+static void test_sockmap_vsock_delete_on_close(void)
+{
+	int map, c, p, err, zero = 0;
+
+	map = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL, sizeof(int),
+			     sizeof(int), 1, NULL);
+	if (!ASSERT_OK_FD(map, "bpf_map_create"))
+		return;
+
+	err = create_pair(AF_VSOCK, SOCK_STREAM, &c, &p);
+	if (!ASSERT_OK(err, "create_pair"))
+		goto close_map;
+
+	if (xbpf_map_update_elem(map, &zero, &c, BPF_NOEXIST))
+		goto close_socks;
+
+	xclose(c);
+	xclose(p);
+
+	err = create_pair(AF_VSOCK, SOCK_STREAM, &c, &p);
+	if (!ASSERT_OK(err, "create_pair"))
+		goto close_map;
+
+	err = bpf_map_update_elem(map, &zero, &c, BPF_NOEXIST);
+	ASSERT_OK(err, "after close(), bpf_map_update");
+
+close_socks:
+	xclose(c);
+	xclose(p);
+close_map:
+	xclose(map);
+}
+
+static void test_skmsg_helpers(enum bpf_map_type map_type)
+{
+	struct test_skmsg_load_helpers *skel;
+	int err, map, verdict;
+
+	skel = test_skmsg_load_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_skmsg_load_helpers__open_and_load"))
+		return;
+
+	verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
+	map = bpf_map__fd(skel->maps.sock_map);
+
+	err = bpf_prog_attach(verdict, map, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	err = bpf_prog_detach2(verdict, map, BPF_SK_MSG_VERDICT);
+	if (!ASSERT_OK(err, "bpf_prog_detach2"))
+		goto out;
+out:
+	test_skmsg_load_helpers__destroy(skel);
+}
+
+static void test_skmsg_helpers_with_link(enum bpf_map_type map_type)
+{
+	struct bpf_program *prog, *prog_clone, *prog_clone2;
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, opts);
+	struct test_skmsg_load_helpers *skel;
+	struct bpf_link *link, *link2;
+	int err, map;
+
+	skel = test_skmsg_load_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_skmsg_load_helpers__open_and_load"))
+		return;
+
+	prog = skel->progs.prog_msg_verdict;
+	prog_clone = skel->progs.prog_msg_verdict_clone;
+	prog_clone2 = skel->progs.prog_msg_verdict_clone2;
+	map = bpf_map__fd(skel->maps.sock_map);
+
+	link = bpf_program__attach_sockmap(prog, map);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
+		goto out;
+
+	/* Fail since bpf_link for the same prog has been created. */
+	err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_ERR(err, "bpf_prog_attach"))
+		goto out;
+
+	/* Fail since bpf_link for the same prog type has been created. */
+	link2 = bpf_program__attach_sockmap(prog_clone, map);
+	if (!ASSERT_ERR_PTR(link2, "bpf_program__attach_sockmap")) {
+		bpf_link__detach(link2);
+		goto out;
+	}
+
+	err = bpf_link__update_program(link, prog_clone);
+	if (!ASSERT_OK(err, "bpf_link__update_program"))
+		goto out;
+
+	/* Fail since a prog with different type attempts to do update. */
+	err = bpf_link__update_program(link, skel->progs.prog_skb_verdict);
+	if (!ASSERT_ERR(err, "bpf_link__update_program"))
+		goto out;
+
+	/* Fail since the old prog does not match the one in the kernel. */
+	opts.old_prog_fd = bpf_program__fd(prog_clone2);
+	opts.flags = BPF_F_REPLACE;
+	err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts);
+	if (!ASSERT_ERR(err, "bpf_link_update"))
+		goto out;
+
+	opts.old_prog_fd = bpf_program__fd(prog_clone);
+	opts.flags = BPF_F_REPLACE;
+	err = bpf_link_update(bpf_link__fd(link), bpf_program__fd(prog), &opts);
+	if (!ASSERT_OK(err, "bpf_link_update"))
+		goto out;
+out:
+	bpf_link__detach(link);
+	test_skmsg_load_helpers__destroy(skel);
+}
+
+static void test_sockmap_update(enum bpf_map_type map_type)
+{
+	int err, prog, src;
+	struct test_sockmap_update *skel;
+	struct bpf_map *dst_map;
+	const __u32 zero = 0;
+	char dummy[14] = {0};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = dummy,
+		.data_size_in = sizeof(dummy),
+		.repeat = 1,
+	);
+	__s64 sk;
+
+	sk = connected_socket_v4();
+	if (!ASSERT_NEQ(sk, -1, "connected_socket_v4"))
+		return;
+
+	skel = test_sockmap_update__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto close_sk;
+
+	prog = bpf_program__fd(skel->progs.copy_sock_map);
+	src = bpf_map__fd(skel->maps.src);
+	if (map_type == BPF_MAP_TYPE_SOCKMAP)
+		dst_map = skel->maps.dst_sock_map;
+	else
+		dst_map = skel->maps.dst_sock_hash;
+
+	err = bpf_map_update_elem(src, &zero, &sk, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "update_elem(src)"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(prog, &topts);
+	if (!ASSERT_OK(err, "test_run"))
+		goto out;
+	if (!ASSERT_NEQ(topts.retval, 0, "test_run retval"))
+		goto out;
+
+	compare_cookies(skel->maps.src, dst_map);
+
+out:
+	test_sockmap_update__destroy(skel);
+close_sk:
+	close(sk);
+}
+
+static void test_sockmap_invalid_update(void)
+{
+	struct test_sockmap_invalid_update *skel;
+
+	skel = test_sockmap_invalid_update__open_and_load();
+	if (!ASSERT_NULL(skel, "open_and_load"))
+		test_sockmap_invalid_update__destroy(skel);
+}
+
+static void test_sockmap_copy(enum bpf_map_type map_type)
+{
+	DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
+	int err, len, src_fd, iter_fd;
+	union bpf_iter_link_info linfo = {};
+	__u32 i, num_sockets, num_elems;
+	struct bpf_iter_sockmap *skel;
+	__s64 *sock_fd = NULL;
+	struct bpf_link *link;
+	struct bpf_map *src;
+	char buf[64];
+
+	skel = bpf_iter_sockmap__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_sockmap__open_and_load"))
+		return;
+
+	if (map_type == BPF_MAP_TYPE_SOCKMAP) {
+		src = skel->maps.sockmap;
+		num_elems = bpf_map__max_entries(src);
+		num_sockets = num_elems - 1;
+	} else {
+		src = skel->maps.sockhash;
+		num_elems = bpf_map__max_entries(src) - 1;
+		num_sockets = num_elems;
+	}
+
+	sock_fd = calloc(num_sockets, sizeof(*sock_fd));
+	if (!ASSERT_OK_PTR(sock_fd, "calloc(sock_fd)"))
+		goto out;
+
+	for (i = 0; i < num_sockets; i++)
+		sock_fd[i] = -1;
+
+	src_fd = bpf_map__fd(src);
+
+	for (i = 0; i < num_sockets; i++) {
+		sock_fd[i] = connected_socket_v4();
+		if (!ASSERT_NEQ(sock_fd[i], -1, "connected_socket_v4"))
+			goto out;
+
+		err = bpf_map_update_elem(src_fd, &i, &sock_fd[i], BPF_NOEXIST);
+		if (!ASSERT_OK(err, "map_update"))
+			goto out;
+	}
+
+	linfo.map.map_fd = src_fd;
+	opts.link_info = &linfo;
+	opts.link_info_len = sizeof(linfo);
+	link = bpf_program__attach_iter(skel->progs.copy, &opts);
+	if (!ASSERT_OK_PTR(link, "attach_iter"))
+		goto out;
+
+	iter_fd = bpf_iter_create(bpf_link__fd(link));
+	if (!ASSERT_GE(iter_fd, 0, "create_iter"))
+		goto free_link;
+
+	/* do some tests */
+	while ((len = read(iter_fd, buf, sizeof(buf))) > 0)
+		;
+	if (!ASSERT_GE(len, 0, "read"))
+		goto close_iter;
+
+	/* test results */
+	if (!ASSERT_EQ(skel->bss->elems, num_elems, "elems"))
+		goto close_iter;
+
+	if (!ASSERT_EQ(skel->bss->socks, num_sockets, "socks"))
+		goto close_iter;
+
+	compare_cookies(src, skel->maps.dst);
+
+close_iter:
+	close(iter_fd);
+free_link:
+	bpf_link__destroy(link);
+out:
+	for (i = 0; sock_fd && i < num_sockets; i++)
+		if (sock_fd[i] >= 0)
+			close(sock_fd[i]);
+	if (sock_fd)
+		free(sock_fd);
+	bpf_iter_sockmap__destroy(skel);
+}
+
+static void test_sockmap_skb_verdict_attach(enum bpf_attach_type first,
+					    enum bpf_attach_type second)
+{
+	struct test_sockmap_skb_verdict_attach *skel;
+	int err, map, verdict;
+
+	skel = test_sockmap_skb_verdict_attach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+	map = bpf_map__fd(skel->maps.sock_map);
+
+	err = bpf_prog_attach(verdict, map, first, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	err = bpf_prog_attach(verdict, map, second, 0);
+	ASSERT_EQ(err, -EBUSY, "prog_attach_fail");
+
+	err = bpf_prog_detach2(verdict, map, first);
+	if (!ASSERT_OK(err, "bpf_prog_detach2"))
+		goto out;
+out:
+	test_sockmap_skb_verdict_attach__destroy(skel);
+}
+
+static void test_sockmap_skb_verdict_attach_with_link(void)
+{
+	struct test_sockmap_skb_verdict_attach *skel;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	int err, map;
+
+	skel = test_sockmap_skb_verdict_attach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+	prog = skel->progs.prog_skb_verdict;
+	map = bpf_map__fd(skel->maps.sock_map);
+	link = bpf_program__attach_sockmap(prog, map);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
+		goto out;
+
+	bpf_link__detach(link);
+
+	err = bpf_prog_attach(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	/* Fail since attaching with the same prog/map has been done. */
+	link = bpf_program__attach_sockmap(prog, map);
+	if (!ASSERT_ERR_PTR(link, "bpf_program__attach_sockmap"))
+		bpf_link__detach(link);
+
+	err = bpf_prog_detach2(bpf_program__fd(prog), map, BPF_SK_SKB_STREAM_VERDICT);
+	if (!ASSERT_OK(err, "bpf_prog_detach2"))
+		goto out;
+out:
+	test_sockmap_skb_verdict_attach__destroy(skel);
+}
+
+static __u32 query_prog_id(int prog_fd)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int err;
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd") ||
+	    !ASSERT_EQ(info_len, sizeof(info), "bpf_prog_get_info_by_fd"))
+		return 0;
+
+	return info.id;
+}
+
+static void test_sockmap_progs_query(enum bpf_attach_type attach_type)
+{
+	struct test_sockmap_progs_query *skel;
+	int err, map_fd, verdict_fd;
+	__u32 attach_flags = 0;
+	__u32 prog_ids[3] = {};
+	__u32 prog_cnt = 3;
+
+	skel = test_sockmap_progs_query__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_sockmap_progs_query__open_and_load"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.sock_map);
+
+	if (attach_type == BPF_SK_MSG_VERDICT)
+		verdict_fd = bpf_program__fd(skel->progs.prog_skmsg_verdict);
+	else
+		verdict_fd = bpf_program__fd(skel->progs.prog_skb_verdict);
+
+	err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */,
+			     &attach_flags, prog_ids, &prog_cnt);
+	ASSERT_OK(err, "bpf_prog_query failed");
+	ASSERT_EQ(attach_flags,  0, "wrong attach_flags on query");
+	ASSERT_EQ(prog_cnt, 0, "wrong program count on query");
+
+	err = bpf_prog_attach(verdict_fd, map_fd, attach_type, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach failed"))
+		goto out;
+
+	prog_cnt = 1;
+	err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */,
+			     &attach_flags, prog_ids, &prog_cnt);
+	ASSERT_OK(err, "bpf_prog_query failed");
+	ASSERT_EQ(attach_flags, 0, "wrong attach_flags on query");
+	ASSERT_EQ(prog_cnt, 1, "wrong program count on query");
+	ASSERT_EQ(prog_ids[0], query_prog_id(verdict_fd),
+		  "wrong prog_ids on query");
+
+	bpf_prog_detach2(verdict_fd, map_fd, attach_type);
+out:
+	test_sockmap_progs_query__destroy(skel);
+}
+
+#define MAX_EVENTS 10
+static void test_sockmap_skb_verdict_shutdown(void)
+{
+	int n, err, map, verdict, c1 = -1, p1 = -1;
+	struct epoll_event ev, events[MAX_EVENTS];
+	struct test_sockmap_pass_prog *skel;
+	int zero = 0;
+	int epollfd;
+	char b;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+
+	err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
+	if (err < 0)
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
+	if (err < 0)
+		goto out_close;
+
+	shutdown(p1, SHUT_WR);
+
+	ev.events = EPOLLIN;
+	ev.data.fd = c1;
+
+	epollfd = epoll_create1(0);
+	if (!ASSERT_GT(epollfd, -1, "epoll_create(0)"))
+		goto out_close;
+	err = epoll_ctl(epollfd, EPOLL_CTL_ADD, c1, &ev);
+	if (!ASSERT_OK(err, "epoll_ctl(EPOLL_CTL_ADD)"))
+		goto out_close;
+	err = epoll_wait(epollfd, events, MAX_EVENTS, -1);
+	if (!ASSERT_EQ(err, 1, "epoll_wait(fd)"))
+		goto out_close;
+
+	n = recv(c1, &b, 1, MSG_DONTWAIT);
+	ASSERT_EQ(n, 0, "recv(fin)");
+out_close:
+	close(c1);
+	close(p1);
+out:
+	test_sockmap_pass_prog__destroy(skel);
+}
+
+
+static void test_sockmap_skb_verdict_fionread(bool pass_prog)
+{
+	int err, map, verdict, c0 = -1, c1 = -1, p0 = -1, p1 = -1;
+	int expected, zero = 0, sent, recvd, avail;
+	struct test_sockmap_pass_prog *pass = NULL;
+	struct test_sockmap_drop_prog *drop = NULL;
+	char buf[256] = "0123456789";
+
+	if (pass_prog) {
+		pass = test_sockmap_pass_prog__open_and_load();
+		if (!ASSERT_OK_PTR(pass, "open_and_load"))
+			return;
+		verdict = bpf_program__fd(pass->progs.prog_skb_verdict);
+		map = bpf_map__fd(pass->maps.sock_map_rx);
+		expected = sizeof(buf);
+	} else {
+		drop = test_sockmap_drop_prog__open_and_load();
+		if (!ASSERT_OK_PTR(drop, "open_and_load"))
+			return;
+		verdict = bpf_program__fd(drop->progs.prog_skb_verdict);
+		map = bpf_map__fd(drop->maps.sock_map_rx);
+		/* On drop data is consumed immediately and copied_seq inc'd */
+		expected = 0;
+	}
+
+
+	err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	err = create_socket_pairs(AF_INET, SOCK_STREAM, &c0, &c1, &p0, &p1);
+	if (!ASSERT_OK(err, "create_socket_pairs()"))
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
+		goto out_close;
+
+	sent = xsend(p1, &buf, sizeof(buf), 0);
+	ASSERT_EQ(sent, sizeof(buf), "xsend(p0)");
+	err = ioctl(c1, FIONREAD, &avail);
+	ASSERT_OK(err, "ioctl(FIONREAD) error");
+	ASSERT_EQ(avail, expected, "ioctl(FIONREAD)");
+	/* On DROP test there will be no data to read */
+	if (pass_prog) {
+		recvd = recv_timeout(c1, &buf, sizeof(buf), MSG_DONTWAIT, IO_TIMEOUT_SEC);
+		ASSERT_EQ(recvd, sizeof(buf), "recv_timeout(c0)");
+	}
+
+out_close:
+	close(c0);
+	close(p0);
+	close(c1);
+	close(p1);
+out:
+	if (pass_prog)
+		test_sockmap_pass_prog__destroy(pass);
+	else
+		test_sockmap_drop_prog__destroy(drop);
+}
+
+static void test_sockmap_skb_verdict_change_tail(void)
+{
+	struct test_sockmap_change_tail *skel;
+	int err, map, verdict;
+	int c1, p1, sent, recvd;
+	int zero = 0;
+	char buf[2];
+
+	skel = test_sockmap_change_tail__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+	verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+
+	err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+	err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
+	if (!ASSERT_OK(err, "create_pair()"))
+		goto out;
+	err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
+		goto out_close;
+	sent = xsend(p1, "Tr", 2, 0);
+	ASSERT_EQ(sent, 2, "xsend(p1)");
+	recvd = recv(c1, buf, 2, 0);
+	ASSERT_EQ(recvd, 1, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
+
+	sent = xsend(p1, "G", 1, 0);
+	ASSERT_EQ(sent, 1, "xsend(p1)");
+	recvd = recv(c1, buf, 2, 0);
+	ASSERT_EQ(recvd, 2, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
+
+	sent = xsend(p1, "E", 1, 0);
+	ASSERT_EQ(sent, 1, "xsend(p1)");
+	recvd = recv(c1, buf, 1, 0);
+	ASSERT_EQ(recvd, 1, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, -EINVAL, "change_tail_ret");
+
+out_close:
+	close(c1);
+	close(p1);
+out:
+	test_sockmap_change_tail__destroy(skel);
+}
+
+static void test_sockmap_skb_verdict_peek_helper(int map)
+{
+	int err, c1, p1, zero = 0, sent, recvd, avail;
+	char snd[256] = "0123456789";
+	char rcv[256] = "0";
+
+	err = create_pair(AF_INET, SOCK_STREAM, &c1, &p1);
+	if (!ASSERT_OK(err, "create_pair()"))
+		return;
+
+	err = bpf_map_update_elem(map, &zero, &c1, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c1)"))
+		goto out_close;
+
+	sent = xsend(p1, snd, sizeof(snd), 0);
+	ASSERT_EQ(sent, sizeof(snd), "xsend(p1)");
+	recvd = recv(c1, rcv, sizeof(rcv), MSG_PEEK);
+	ASSERT_EQ(recvd, sizeof(rcv), "recv(c1)");
+	err = ioctl(c1, FIONREAD, &avail);
+	ASSERT_OK(err, "ioctl(FIONREAD) error");
+	ASSERT_EQ(avail, sizeof(snd), "after peek ioctl(FIONREAD)");
+	recvd = recv(c1, rcv, sizeof(rcv), 0);
+	ASSERT_EQ(recvd, sizeof(rcv), "recv(p0)");
+	err = ioctl(c1, FIONREAD, &avail);
+	ASSERT_OK(err, "ioctl(FIONREAD) error");
+	ASSERT_EQ(avail, 0, "after read ioctl(FIONREAD)");
+
+out_close:
+	close(c1);
+	close(p1);
+}
+
+static void test_sockmap_skb_verdict_peek(void)
+{
+	struct test_sockmap_pass_prog *pass;
+	int err, map, verdict;
+
+	pass = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(pass, "open_and_load"))
+		return;
+	verdict = bpf_program__fd(pass->progs.prog_skb_verdict);
+	map = bpf_map__fd(pass->maps.sock_map_rx);
+
+	err = bpf_prog_attach(verdict, map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach"))
+		goto out;
+
+	test_sockmap_skb_verdict_peek_helper(map);
+
+out:
+	test_sockmap_pass_prog__destroy(pass);
+}
+
+static void test_sockmap_skb_verdict_peek_with_link(void)
+{
+	struct test_sockmap_pass_prog *pass;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	int err, map;
+
+	pass = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(pass, "open_and_load"))
+		return;
+	prog = pass->progs.prog_skb_verdict;
+	map = bpf_map__fd(pass->maps.sock_map_rx);
+	link = bpf_program__attach_sockmap(prog, map);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
+		goto out;
+
+	err = bpf_link__update_program(link, pass->progs.prog_skb_verdict_clone);
+	if (!ASSERT_OK(err, "bpf_link__update_program"))
+		goto out;
+
+	/* Fail since a prog with different attach type attempts to do update. */
+	err = bpf_link__update_program(link, pass->progs.prog_skb_parser);
+	if (!ASSERT_ERR(err, "bpf_link__update_program"))
+		goto out;
+
+	test_sockmap_skb_verdict_peek_helper(map);
+	ASSERT_EQ(pass->bss->clone_called, 1, "clone_called");
+out:
+	bpf_link__detach(link);
+	test_sockmap_pass_prog__destroy(pass);
+}
+
+static void test_sockmap_unconnected_unix(void)
+{
+	int err, map, stream = 0, dgram = 0, zero = 0;
+	struct test_sockmap_pass_prog *skel;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+
+	stream = xsocket(AF_UNIX, SOCK_STREAM, 0);
+	if (stream < 0)
+		return;
+
+	dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
+	if (dgram < 0) {
+		close(stream);
+		return;
+	}
+
+	err = bpf_map_update_elem(map, &zero, &stream, BPF_ANY);
+	ASSERT_ERR(err, "bpf_map_update_elem(stream)");
+
+	err = bpf_map_update_elem(map, &zero, &dgram, BPF_ANY);
+	ASSERT_OK(err, "bpf_map_update_elem(dgram)");
+
+	close(stream);
+	close(dgram);
+}
+
+static void test_sockmap_many_socket(void)
+{
+	struct test_sockmap_pass_prog *skel;
+	int stream[2], dgram, udp, tcp;
+	int i, err, map, entry = 0;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+
+	dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
+	if (dgram < 0) {
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	tcp = connected_socket_v4();
+	if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
+		close(dgram);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
+	if (udp < 0) {
+		close(dgram);
+		close(tcp);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
+	ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
+	if (err)
+		goto out;
+
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map, &entry, &stream[0], BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(stream)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map, &entry, &dgram, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(dgram)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map, &entry, &udp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(udp)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map, &entry, &tcp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(tcp)");
+	}
+	for (entry--; entry >= 0; entry--) {
+		err = bpf_map_delete_elem(map, &entry);
+		ASSERT_OK(err, "bpf_map_delete_elem(entry)");
+	}
+
+	close(stream[0]);
+	close(stream[1]);
+out:
+	close(dgram);
+	close(tcp);
+	close(udp);
+	test_sockmap_pass_prog__destroy(skel);
+}
+
+static void test_sockmap_many_maps(void)
+{
+	struct test_sockmap_pass_prog *skel;
+	int stream[2], dgram, udp, tcp;
+	int i, err, map[2], entry = 0;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	map[0] = bpf_map__fd(skel->maps.sock_map_rx);
+	map[1] = bpf_map__fd(skel->maps.sock_map_tx);
+
+	dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
+	if (dgram < 0) {
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	tcp = connected_socket_v4();
+	if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
+		close(dgram);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
+	if (udp < 0) {
+		close(dgram);
+		close(tcp);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
+	ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
+	if (err)
+		goto out;
+
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map[i], &entry, &stream[0], BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(stream)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map[i], &entry, &dgram, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(dgram)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map[i], &entry, &udp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(udp)");
+	}
+	for (i = 0; i < 2; i++, entry++) {
+		err = bpf_map_update_elem(map[i], &entry, &tcp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(tcp)");
+	}
+	for (entry--; entry >= 0; entry--) {
+		err = bpf_map_delete_elem(map[1], &entry);
+		entry--;
+		ASSERT_OK(err, "bpf_map_delete_elem(entry)");
+		err = bpf_map_delete_elem(map[0], &entry);
+		ASSERT_OK(err, "bpf_map_delete_elem(entry)");
+	}
+
+	close(stream[0]);
+	close(stream[1]);
+out:
+	close(dgram);
+	close(tcp);
+	close(udp);
+	test_sockmap_pass_prog__destroy(skel);
+}
+
+static void test_sockmap_same_sock(void)
+{
+	struct test_sockmap_pass_prog *skel;
+	int stream[2], dgram, udp, tcp;
+	int i, err, map, zero = 0;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+
+	dgram = xsocket(AF_UNIX, SOCK_DGRAM, 0);
+	if (dgram < 0) {
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	tcp = connected_socket_v4();
+	if (!ASSERT_GE(tcp, 0, "connected_socket_v4")) {
+		close(dgram);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	udp = xsocket(AF_INET, SOCK_DGRAM | SOCK_NONBLOCK, 0);
+	if (udp < 0) {
+		close(dgram);
+		close(tcp);
+		test_sockmap_pass_prog__destroy(skel);
+		return;
+	}
+
+	err = socketpair(AF_UNIX, SOCK_STREAM, 0, stream);
+	ASSERT_OK(err, "socketpair(af_unix, sock_stream)");
+	if (err) {
+		close(tcp);
+		goto out;
+	}
+
+	for (i = 0; i < 2; i++) {
+		err = bpf_map_update_elem(map, &zero, &stream[0], BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(stream)");
+	}
+	for (i = 0; i < 2; i++) {
+		err = bpf_map_update_elem(map, &zero, &dgram, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(dgram)");
+	}
+	for (i = 0; i < 2; i++) {
+		err = bpf_map_update_elem(map, &zero, &udp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(udp)");
+	}
+	for (i = 0; i < 2; i++) {
+		err = bpf_map_update_elem(map, &zero, &tcp, BPF_ANY);
+		ASSERT_OK(err, "bpf_map_update_elem(tcp)");
+	}
+
+	close(tcp);
+	err = bpf_map_delete_elem(map, &zero);
+	ASSERT_ERR(err, "bpf_map_delete_elem(entry)");
+
+	close(stream[0]);
+	close(stream[1]);
+out:
+	close(dgram);
+	close(udp);
+	test_sockmap_pass_prog__destroy(skel);
+}
+
+static void test_sockmap_skb_verdict_vsock_poll(void)
+{
+	struct test_sockmap_pass_prog *skel;
+	int err, map, conn, peer;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	char buf = 'x';
+	int zero = 0;
+
+	skel = test_sockmap_pass_prog__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	if (create_pair(AF_VSOCK, SOCK_STREAM, &conn, &peer))
+		goto destroy;
+
+	prog = skel->progs.prog_skb_verdict;
+	map = bpf_map__fd(skel->maps.sock_map_rx);
+	link = bpf_program__attach_sockmap(prog, map);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
+		goto close;
+
+	err = bpf_map_update_elem(map, &zero, &conn, BPF_ANY);
+	if (!ASSERT_OK(err, "bpf_map_update_elem"))
+		goto detach;
+
+	if (xsend(peer, &buf, 1, 0) != 1)
+		goto detach;
+
+	err = poll_read(conn, IO_TIMEOUT_SEC);
+	if (!ASSERT_OK(err, "poll"))
+		goto detach;
+
+	if (xrecv_nonblock(conn, &buf, 1, 0) != 1)
+		FAIL("xrecv_nonblock");
+detach:
+	bpf_link__detach(link);
+close:
+	xclose(conn);
+	xclose(peer);
+destroy:
+	test_sockmap_pass_prog__destroy(skel);
+}
+
+static void test_sockmap_vsock_unconnected(void)
+{
+	struct sockaddr_storage addr;
+	int map, s, zero = 0;
+	socklen_t alen;
+
+	map = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL, sizeof(int),
+			     sizeof(int), 1, NULL);
+	if (!ASSERT_OK_FD(map, "bpf_map_create"))
+		return;
+
+	s = xsocket(AF_VSOCK, SOCK_STREAM, 0);
+	if (s < 0)
+		goto close_map;
+
+	/* Fail connect(), but trigger transport assignment. */
+	init_addr_loopback(AF_VSOCK, &addr, &alen);
+	if (!ASSERT_ERR(connect(s, sockaddr(&addr), alen), "connect"))
+		goto close_sock;
+
+	ASSERT_ERR(bpf_map_update_elem(map, &zero, &s, BPF_ANY), "map_update");
+
+close_sock:
+	xclose(s);
+close_map:
+	xclose(map);
+}
+
+void test_sockmap_basic(void)
+{
+	if (test__start_subtest("sockmap create_update_free"))
+		test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKMAP);
+	if (test__start_subtest("sockhash create_update_free"))
+		test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap vsock delete on close"))
+		test_sockmap_vsock_delete_on_close();
+	if (test__start_subtest("sockmap sk_msg load helpers"))
+		test_skmsg_helpers(BPF_MAP_TYPE_SOCKMAP);
+	if (test__start_subtest("sockhash sk_msg load helpers"))
+		test_skmsg_helpers(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap update"))
+		test_sockmap_update(BPF_MAP_TYPE_SOCKMAP);
+	if (test__start_subtest("sockhash update"))
+		test_sockmap_update(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap update in unsafe context"))
+		test_sockmap_invalid_update();
+	if (test__start_subtest("sockmap copy"))
+		test_sockmap_copy(BPF_MAP_TYPE_SOCKMAP);
+	if (test__start_subtest("sockhash copy"))
+		test_sockmap_copy(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap skb_verdict attach")) {
+		test_sockmap_skb_verdict_attach(BPF_SK_SKB_VERDICT,
+						BPF_SK_SKB_STREAM_VERDICT);
+		test_sockmap_skb_verdict_attach(BPF_SK_SKB_STREAM_VERDICT,
+						BPF_SK_SKB_VERDICT);
+	}
+	if (test__start_subtest("sockmap skb_verdict attach_with_link"))
+		test_sockmap_skb_verdict_attach_with_link();
+	if (test__start_subtest("sockmap msg_verdict progs query"))
+		test_sockmap_progs_query(BPF_SK_MSG_VERDICT);
+	if (test__start_subtest("sockmap stream_parser progs query"))
+		test_sockmap_progs_query(BPF_SK_SKB_STREAM_PARSER);
+	if (test__start_subtest("sockmap stream_verdict progs query"))
+		test_sockmap_progs_query(BPF_SK_SKB_STREAM_VERDICT);
+	if (test__start_subtest("sockmap skb_verdict progs query"))
+		test_sockmap_progs_query(BPF_SK_SKB_VERDICT);
+	if (test__start_subtest("sockmap skb_verdict shutdown"))
+		test_sockmap_skb_verdict_shutdown();
+	if (test__start_subtest("sockmap skb_verdict fionread"))
+		test_sockmap_skb_verdict_fionread(true);
+	if (test__start_subtest("sockmap skb_verdict fionread on drop"))
+		test_sockmap_skb_verdict_fionread(false);
+	if (test__start_subtest("sockmap skb_verdict change tail"))
+		test_sockmap_skb_verdict_change_tail();
+	if (test__start_subtest("sockmap skb_verdict msg_f_peek"))
+		test_sockmap_skb_verdict_peek();
+	if (test__start_subtest("sockmap skb_verdict msg_f_peek with link"))
+		test_sockmap_skb_verdict_peek_with_link();
+	if (test__start_subtest("sockmap unconnected af_unix"))
+		test_sockmap_unconnected_unix();
+	if (test__start_subtest("sockmap one socket to many map entries"))
+		test_sockmap_many_socket();
+	if (test__start_subtest("sockmap one socket to many maps"))
+		test_sockmap_many_maps();
+	if (test__start_subtest("sockmap same socket replace"))
+		test_sockmap_same_sock();
+	if (test__start_subtest("sockmap sk_msg attach sockmap helpers with link"))
+		test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKMAP);
+	if (test__start_subtest("sockhash sk_msg attach sockhash helpers with link"))
+		test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap skb_verdict vsock poll"))
+		test_sockmap_skb_verdict_vsock_poll();
+	if (test__start_subtest("sockmap vsock unconnected"))
+		test_sockmap_vsock_unconnected();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h b/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h
new file mode 100644
index 000000000000..d815efac52fd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_helpers.h
@@ -0,0 +1,83 @@
+#ifndef __SOCKMAP_HELPERS__
+#define __SOCKMAP_HELPERS__
+
+#include "socket_helpers.h"
+
+#define MAX_TEST_NAME 80
+
+#define u32(v) ((u32){(v)})
+#define u64(v) ((u64){(v)})
+
+#define __always_unused	__attribute__((__unused__))
+
+#define xbpf_map_delete_elem(fd, key)                                          \
+	({                                                                     \
+		int __ret = bpf_map_delete_elem((fd), (key));                  \
+		if (__ret < 0)                                                 \
+			FAIL_ERRNO("map_delete");                              \
+		__ret;                                                         \
+	})
+
+#define xbpf_map_lookup_elem(fd, key, val)                                     \
+	({                                                                     \
+		int __ret = bpf_map_lookup_elem((fd), (key), (val));           \
+		if (__ret < 0)                                                 \
+			FAIL_ERRNO("map_lookup");                              \
+		__ret;                                                         \
+	})
+
+#define xbpf_map_update_elem(fd, key, val, flags)                              \
+	({                                                                     \
+		int __ret = bpf_map_update_elem((fd), (key), (val), (flags));  \
+		if (__ret < 0)                                                 \
+			FAIL_ERRNO("map_update");                              \
+		__ret;                                                         \
+	})
+
+#define xbpf_prog_attach(prog, target, type, flags)                            \
+	({                                                                     \
+		int __ret =                                                    \
+			bpf_prog_attach((prog), (target), (type), (flags));    \
+		if (__ret < 0)                                                 \
+			FAIL_ERRNO("prog_attach(" #type ")");                  \
+		__ret;                                                         \
+	})
+
+#define xbpf_prog_detach2(prog, target, type)                                  \
+	({                                                                     \
+		int __ret = bpf_prog_detach2((prog), (target), (type));        \
+		if (__ret < 0)                                                 \
+			FAIL_ERRNO("prog_detach2(" #type ")");                 \
+		__ret;                                                         \
+	})
+
+#define xpthread_create(thread, attr, func, arg)                               \
+	({                                                                     \
+		int __ret = pthread_create((thread), (attr), (func), (arg));   \
+		errno = __ret;                                                 \
+		if (__ret)                                                     \
+			FAIL_ERRNO("pthread_create");                          \
+		__ret;                                                         \
+	})
+
+#define xpthread_join(thread, retval)                                          \
+	({                                                                     \
+		int __ret = pthread_join((thread), (retval));                  \
+		errno = __ret;                                                 \
+		if (__ret)                                                     \
+			FAIL_ERRNO("pthread_join");                            \
+		__ret;                                                         \
+	})
+
+static inline int add_to_sockmap(int mapfd, int fd1, int fd2)
+{
+	int err;
+
+	err = xbpf_map_update_elem(mapfd, &u32(0), &u64(fd1), BPF_NOEXIST);
+	if (err)
+		return err;
+
+	return xbpf_map_update_elem(mapfd, &u32(1), &u64(fd2), BPF_NOEXIST);
+}
+
+#endif // __SOCKMAP_HELPERS__
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
new file mode 100644
index 000000000000..b87e7f39e15a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_ktls.c
@@ -0,0 +1,442 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+/*
+ * Tests for sockmap/sockhash holding kTLS sockets.
+ */
+#include <error.h>
+#include <netinet/tcp.h>
+#include <linux/tls.h>
+#include "test_progs.h"
+#include "sockmap_helpers.h"
+#include "test_skmsg_load_helpers.skel.h"
+#include "test_sockmap_ktls.skel.h"
+
+#define MAX_TEST_NAME 80
+#define TCP_ULP 31
+
+static int init_ktls_pairs(int c, int p)
+{
+	int err;
+	struct tls12_crypto_info_aes_gcm_128 crypto_rx;
+	struct tls12_crypto_info_aes_gcm_128 crypto_tx;
+
+	err = setsockopt(c, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
+	if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
+		goto out;
+
+	err = setsockopt(p, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
+	if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
+		goto out;
+
+	memset(&crypto_rx, 0, sizeof(crypto_rx));
+	memset(&crypto_tx, 0, sizeof(crypto_tx));
+	crypto_rx.info.version = TLS_1_2_VERSION;
+	crypto_tx.info.version = TLS_1_2_VERSION;
+	crypto_rx.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+	crypto_tx.info.cipher_type = TLS_CIPHER_AES_GCM_128;
+
+	err = setsockopt(c, SOL_TLS, TLS_TX, &crypto_tx, sizeof(crypto_tx));
+	if (!ASSERT_OK(err, "setsockopt(TLS_TX)"))
+		goto out;
+
+	err = setsockopt(p, SOL_TLS, TLS_RX, &crypto_rx, sizeof(crypto_rx));
+	if (!ASSERT_OK(err, "setsockopt(TLS_RX)"))
+		goto out;
+	return 0;
+out:
+	return -1;
+}
+
+static int create_ktls_pairs(int family, int sotype, int *c, int *p)
+{
+	int err;
+
+	err = create_pair(family, sotype, c, p);
+	if (!ASSERT_OK(err, "create_pair()"))
+		return -1;
+
+	err = init_ktls_pairs(*c, *p);
+	if (!ASSERT_OK(err, "init_ktls_pairs(c, p)"))
+		return -1;
+	return 0;
+}
+
+static void test_sockmap_ktls_update_fails_when_sock_has_ulp(int family, int map)
+{
+	struct sockaddr_storage addr = {};
+	socklen_t len = sizeof(addr);
+	struct sockaddr_in6 *v6;
+	struct sockaddr_in *v4;
+	int err, s, zero = 0;
+
+	switch (family) {
+	case AF_INET:
+		v4 = (struct sockaddr_in *)&addr;
+		v4->sin_family = AF_INET;
+		break;
+	case AF_INET6:
+		v6 = (struct sockaddr_in6 *)&addr;
+		v6->sin6_family = AF_INET6;
+		break;
+	default:
+		PRINT_FAIL("unsupported socket family %d", family);
+		return;
+	}
+
+	s = socket(family, SOCK_STREAM, 0);
+	if (!ASSERT_GE(s, 0, "socket"))
+		return;
+
+	err = bind(s, (struct sockaddr *)&addr, len);
+	if (!ASSERT_OK(err, "bind"))
+		goto close;
+
+	err = getsockname(s, (struct sockaddr *)&addr, &len);
+	if (!ASSERT_OK(err, "getsockname"))
+		goto close;
+
+	err = connect(s, (struct sockaddr *)&addr, len);
+	if (!ASSERT_OK(err, "connect"))
+		goto close;
+
+	/* save sk->sk_prot and set it to tls_prots */
+	err = setsockopt(s, IPPROTO_TCP, TCP_ULP, "tls", strlen("tls"));
+	if (!ASSERT_OK(err, "setsockopt(TCP_ULP)"))
+		goto close;
+
+	/* sockmap update should not affect saved sk_prot */
+	err = bpf_map_update_elem(map, &zero, &s, BPF_ANY);
+	if (!ASSERT_ERR(err, "sockmap update elem"))
+		goto close;
+
+	/* call sk->sk_prot->setsockopt to dispatch to saved sk_prot */
+	err = setsockopt(s, IPPROTO_TCP, TCP_NODELAY, &zero, sizeof(zero));
+	ASSERT_OK(err, "setsockopt(TCP_NODELAY)");
+
+close:
+	close(s);
+}
+
+static const char *fmt_test_name(const char *subtest_name, int family,
+				 enum bpf_map_type map_type)
+{
+	const char *map_type_str = BPF_MAP_TYPE_SOCKMAP ? "SOCKMAP" : "SOCKHASH";
+	const char *family_str = AF_INET ? "IPv4" : "IPv6";
+	static char test_name[MAX_TEST_NAME];
+
+	snprintf(test_name, MAX_TEST_NAME,
+		 "sockmap_ktls %s %s %s",
+		 subtest_name, family_str, map_type_str);
+
+	return test_name;
+}
+
+static void test_sockmap_ktls_offload(int family, int sotype)
+{
+	int err;
+	int c = 0, p = 0, sent, recvd;
+	char msg[12] = "hello world\0";
+	char rcv[13];
+
+	err = create_ktls_pairs(family, sotype, &c, &p);
+	if (!ASSERT_OK(err, "create_ktls_pairs()"))
+		goto out;
+
+	sent = send(c, msg, sizeof(msg), 0);
+	if (!ASSERT_OK(err, "send(msg)"))
+		goto out;
+
+	recvd = recv(p, rcv, sizeof(rcv), 0);
+	if (!ASSERT_OK(err, "recv(msg)") ||
+	    !ASSERT_EQ(recvd, sent, "length mismatch"))
+		goto out;
+
+	ASSERT_OK(memcmp(msg, rcv, sizeof(msg)), "data mismatch");
+
+out:
+	if (c)
+		close(c);
+	if (p)
+		close(p);
+}
+
+static void test_sockmap_ktls_tx_cork(int family, int sotype, bool push)
+{
+	int err, off;
+	int i, j;
+	int start_push = 0, push_len = 0;
+	int c = 0, p = 0, one = 1, sent, recvd;
+	int prog_fd, map_fd;
+	char msg[12] = "hello world\0";
+	char rcv[20] = {0};
+	struct test_sockmap_ktls *skel;
+
+	skel = test_sockmap_ktls__open_and_load();
+	if (!ASSERT_TRUE(skel, "open ktls skel"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (!ASSERT_OK(err, "create_pair()"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.prog_sk_policy);
+	map_fd = bpf_map__fd(skel->maps.sock_map);
+
+	err = bpf_prog_attach(prog_fd, map_fd, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach sk msg"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &one, &c, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c)"))
+		goto out;
+
+	err = init_ktls_pairs(c, p);
+	if (!ASSERT_OK(err, "init_ktls_pairs(c, p)"))
+		goto out;
+
+	skel->bss->cork_byte = sizeof(msg);
+	if (push) {
+		start_push = 1;
+		push_len = 2;
+	}
+	skel->bss->push_start = start_push;
+	skel->bss->push_end = push_len;
+
+	off = sizeof(msg) / 2;
+	sent = send(c, msg, off, 0);
+	if (!ASSERT_EQ(sent, off, "send(msg)"))
+		goto out;
+
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, 1);
+	if (!ASSERT_EQ(-1, recvd, "expected no data"))
+		goto out;
+
+	/* send remaining msg */
+	sent = send(c, msg + off, sizeof(msg) - off, 0);
+	if (!ASSERT_EQ(sent, sizeof(msg) - off, "send remaining data"))
+		goto out;
+
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, 1);
+	if (!ASSERT_OK(err, "recv(msg)") ||
+	    !ASSERT_EQ(recvd, sizeof(msg) + push_len, "check length mismatch"))
+		goto out;
+
+	for (i = 0, j = 0; i < recvd;) {
+		/* skip checking the data that has been pushed in */
+		if (i >= start_push && i <= start_push + push_len - 1) {
+			i++;
+			continue;
+		}
+		if (!ASSERT_EQ(rcv[i], msg[j], "data mismatch"))
+			goto out;
+		i++;
+		j++;
+	}
+out:
+	if (c)
+		close(c);
+	if (p)
+		close(p);
+	test_sockmap_ktls__destroy(skel);
+}
+
+static void test_sockmap_ktls_tx_no_buf(int family, int sotype, bool push)
+{
+	int c = -1, p = -1, one = 1, two = 2;
+	struct test_sockmap_ktls *skel;
+	unsigned char *data = NULL;
+	struct msghdr msg = {0};
+	struct iovec iov[2];
+	int prog_fd, map_fd;
+	int txrx_buf = 1024;
+	int iov_length = 8192;
+	int err;
+
+	skel = test_sockmap_ktls__open_and_load();
+	if (!ASSERT_TRUE(skel, "open ktls skel"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (!ASSERT_OK(err, "create_pair()"))
+		goto out;
+
+	err = setsockopt(c, SOL_SOCKET, SO_RCVBUFFORCE, &txrx_buf, sizeof(int));
+	err |= setsockopt(p, SOL_SOCKET, SO_SNDBUFFORCE, &txrx_buf, sizeof(int));
+	if (!ASSERT_OK(err, "set buf limit"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.prog_sk_policy_redir);
+	map_fd = bpf_map__fd(skel->maps.sock_map);
+
+	err = bpf_prog_attach(prog_fd, map_fd, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach sk msg"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &one, &c, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c)"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &two, &p, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p)"))
+		goto out;
+
+	skel->bss->apply_bytes = 1024;
+
+	err = init_ktls_pairs(c, p);
+	if (!ASSERT_OK(err, "init_ktls_pairs(c, p)"))
+		goto out;
+
+	data = calloc(iov_length, sizeof(char));
+	if (!data)
+		goto out;
+
+	iov[0].iov_base = data;
+	iov[0].iov_len = iov_length;
+	iov[1].iov_base = data;
+	iov[1].iov_len = iov_length;
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 2;
+
+	for (;;) {
+		err = sendmsg(c, &msg, MSG_DONTWAIT);
+		if (err <= 0)
+			break;
+	}
+
+out:
+	if (data)
+		free(data);
+	if (c != -1)
+		close(c);
+	if (p != -1)
+		close(p);
+
+	test_sockmap_ktls__destroy(skel);
+}
+
+static void test_sockmap_ktls_tx_pop(int family, int sotype)
+{
+	char msg[37] = "0123456789abcdefghijklmnopqrstuvwxyz\0";
+	int c = 0, p = 0, one = 1, sent, recvd;
+	struct test_sockmap_ktls *skel;
+	int prog_fd, map_fd;
+	char rcv[50] = {0};
+	int err;
+	int i, m, r;
+
+	skel = test_sockmap_ktls__open_and_load();
+	if (!ASSERT_TRUE(skel, "open ktls skel"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (!ASSERT_OK(err, "create_pair()"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.prog_sk_policy);
+	map_fd = bpf_map__fd(skel->maps.sock_map);
+
+	err = bpf_prog_attach(prog_fd, map_fd, BPF_SK_MSG_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach sk msg"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &one, &c, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(c)"))
+		goto out;
+
+	err = init_ktls_pairs(c, p);
+	if (!ASSERT_OK(err, "init_ktls_pairs(c, p)"))
+		goto out;
+
+	struct {
+		int	pop_start;
+		int	pop_len;
+	} pop_policy[] = {
+		/* trim the start */
+		{0, 2},
+		{0, 10},
+		{1, 2},
+		{1, 10},
+		/* trim the end */
+		{35, 2},
+		/* New entries should be added before this line */
+		{-1, -1},
+	};
+
+	i = 0;
+	while (pop_policy[i].pop_start >= 0) {
+		skel->bss->pop_start = pop_policy[i].pop_start;
+		skel->bss->pop_end =  pop_policy[i].pop_len;
+
+		sent = send(c, msg, sizeof(msg), 0);
+		if (!ASSERT_EQ(sent, sizeof(msg), "send(msg)"))
+			goto out;
+
+		recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, 1);
+		if (!ASSERT_EQ(recvd, sizeof(msg) - pop_policy[i].pop_len, "pop len mismatch"))
+			goto out;
+
+		/* verify the data
+		 * msg: 0123456789a bcdefghij klmnopqrstuvwxyz
+		 *                  |       |
+		 *                  popped data
+		 */
+		for (m = 0, r = 0; m < sizeof(msg);) {
+			/* skip checking the data that has been popped */
+			if (m >= pop_policy[i].pop_start &&
+			    m <= pop_policy[i].pop_start + pop_policy[i].pop_len - 1) {
+				m++;
+				continue;
+			}
+
+			if (!ASSERT_EQ(msg[m], rcv[r], "data mismatch"))
+				goto out;
+			m++;
+			r++;
+		}
+		i++;
+	}
+out:
+	if (c)
+		close(c);
+	if (p)
+		close(p);
+	test_sockmap_ktls__destroy(skel);
+}
+
+static void run_tests(int family, enum bpf_map_type map_type)
+{
+	int map;
+
+	map = bpf_map_create(map_type, NULL, sizeof(int), sizeof(int), 1, NULL);
+	if (!ASSERT_GE(map, 0, "bpf_map_create"))
+		return;
+
+	if (test__start_subtest(fmt_test_name("update_fails_when_sock_has_ulp", family, map_type)))
+		test_sockmap_ktls_update_fails_when_sock_has_ulp(family, map);
+
+	close(map);
+}
+
+static void run_ktls_test(int family, int sotype)
+{
+	if (test__start_subtest("tls simple offload"))
+		test_sockmap_ktls_offload(family, sotype);
+	if (test__start_subtest("tls tx cork"))
+		test_sockmap_ktls_tx_cork(family, sotype, false);
+	if (test__start_subtest("tls tx cork with push"))
+		test_sockmap_ktls_tx_cork(family, sotype, true);
+	if (test__start_subtest("tls tx egress with no buf"))
+		test_sockmap_ktls_tx_no_buf(family, sotype, true);
+	if (test__start_subtest("tls tx with pop"))
+		test_sockmap_ktls_tx_pop(family, sotype);
+}
+
+void test_sockmap_ktls(void)
+{
+	run_tests(AF_INET, BPF_MAP_TYPE_SOCKMAP);
+	run_tests(AF_INET, BPF_MAP_TYPE_SOCKHASH);
+	run_tests(AF_INET6, BPF_MAP_TYPE_SOCKMAP);
+	run_tests(AF_INET6, BPF_MAP_TYPE_SOCKHASH);
+	run_ktls_test(AF_INET, SOCK_STREAM);
+	run_ktls_test(AF_INET6, SOCK_STREAM);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
new file mode 100644
index 000000000000..f1bdccc7e4e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
@@ -0,0 +1,1440 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+/*
+ * Test suite for SOCKMAP/SOCKHASH holding listening sockets.
+ * Covers:
+ *  1. BPF map operations - bpf_map_{update,lookup delete}_elem
+ *  2. BPF redirect helpers - bpf_{sk,msg}_redirect_map
+ *  3. BPF reuseport helper - bpf_sk_select_reuseport
+ */
+
+#include <linux/compiler.h>
+#include <errno.h>
+#include <error.h>
+#include <limits.h>
+#include <netinet/in.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/select.h>
+#include <unistd.h>
+#include <linux/vm_sockets.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "test_progs.h"
+#include "test_sockmap_listen.skel.h"
+
+#include "sockmap_helpers.h"
+
+#define NO_FLAGS 0
+
+static void test_insert_invalid(struct test_sockmap_listen *skel __always_unused,
+				int family, int sotype, int mapfd)
+{
+	u32 key = 0;
+	u64 value;
+	int err;
+
+	value = -1;
+	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	if (!err || errno != EINVAL)
+		FAIL_ERRNO("map_update: expected EINVAL");
+
+	value = INT_MAX;
+	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	if (!err || errno != EBADF)
+		FAIL_ERRNO("map_update: expected EBADF");
+}
+
+static void test_insert_opened(struct test_sockmap_listen *skel __always_unused,
+			       int family, int sotype, int mapfd)
+{
+	u32 key = 0;
+	u64 value;
+	int err, s;
+
+	s = xsocket(family, sotype, 0);
+	if (s == -1)
+		return;
+
+	errno = 0;
+	value = s;
+	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	if (sotype == SOCK_STREAM) {
+		if (!err || errno != EOPNOTSUPP)
+			FAIL_ERRNO("map_update: expected EOPNOTSUPP");
+	} else if (err)
+		FAIL_ERRNO("map_update: expected success");
+	xclose(s);
+}
+
+static void test_insert_bound(struct test_sockmap_listen *skel __always_unused,
+			      int family, int sotype, int mapfd)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = 0;
+	u32 key = 0;
+	u64 value;
+	int err, s;
+
+	init_addr_loopback(family, &addr, &len);
+
+	s = xsocket(family, sotype, 0);
+	if (s == -1)
+		return;
+
+	err = xbind(s, sockaddr(&addr), len);
+	if (err)
+		goto close;
+
+	errno = 0;
+	value = s;
+	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	if (!err || errno != EOPNOTSUPP)
+		FAIL_ERRNO("map_update: expected EOPNOTSUPP");
+close:
+	xclose(s);
+}
+
+static void test_insert(struct test_sockmap_listen *skel __always_unused,
+			int family, int sotype, int mapfd)
+{
+	u64 value;
+	u32 key;
+	int s;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	xclose(s);
+}
+
+static void test_delete_after_insert(struct test_sockmap_listen *skel __always_unused,
+				     int family, int sotype, int mapfd)
+{
+	u64 value;
+	u32 key;
+	int s;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	xbpf_map_delete_elem(mapfd, &key);
+	xclose(s);
+}
+
+static void test_delete_after_close(struct test_sockmap_listen *skel __always_unused,
+				    int family, int sotype, int mapfd)
+{
+	int err, s;
+	u64 value;
+	u32 key;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+
+	xclose(s);
+
+	errno = 0;
+	err = bpf_map_delete_elem(mapfd, &key);
+	if (!err || (errno != EINVAL && errno != ENOENT))
+		/* SOCKMAP and SOCKHASH return different error codes */
+		FAIL_ERRNO("map_delete: expected EINVAL/EINVAL");
+}
+
+static void test_lookup_after_insert(struct test_sockmap_listen *skel __always_unused,
+				     int family, int sotype, int mapfd)
+{
+	u64 cookie, value;
+	socklen_t len;
+	u32 key;
+	int s;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+
+	len = sizeof(cookie);
+	xgetsockopt(s, SOL_SOCKET, SO_COOKIE, &cookie, &len);
+
+	xbpf_map_lookup_elem(mapfd, &key, &value);
+
+	if (value != cookie) {
+		FAIL("map_lookup: have %#llx, want %#llx",
+		     (unsigned long long)value, (unsigned long long)cookie);
+	}
+
+	xclose(s);
+}
+
+static void test_lookup_after_delete(struct test_sockmap_listen *skel __always_unused,
+				     int family, int sotype, int mapfd)
+{
+	int err, s;
+	u64 value;
+	u32 key;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	xbpf_map_delete_elem(mapfd, &key);
+
+	errno = 0;
+	err = bpf_map_lookup_elem(mapfd, &key, &value);
+	if (!err || errno != ENOENT)
+		FAIL_ERRNO("map_lookup: expected ENOENT");
+
+	xclose(s);
+}
+
+static void test_lookup_32_bit_value(struct test_sockmap_listen *skel __always_unused,
+				     int family, int sotype, int mapfd)
+{
+	u32 key, value32;
+	int err, s;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	mapfd = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL, sizeof(key),
+			       sizeof(value32), 1, NULL);
+	if (mapfd < 0) {
+		FAIL_ERRNO("map_create");
+		goto close;
+	}
+
+	key = 0;
+	value32 = s;
+	xbpf_map_update_elem(mapfd, &key, &value32, BPF_NOEXIST);
+
+	errno = 0;
+	err = bpf_map_lookup_elem(mapfd, &key, &value32);
+	if (!err || errno != ENOSPC)
+		FAIL_ERRNO("map_lookup: expected ENOSPC");
+
+	xclose(mapfd);
+close:
+	xclose(s);
+}
+
+static void test_update_existing(struct test_sockmap_listen *skel __always_unused,
+				 int family, int sotype, int mapfd)
+{
+	int s1, s2;
+	u64 value;
+	u32 key;
+
+	s1 = socket_loopback(family, sotype);
+	if (s1 < 0)
+		return;
+
+	s2 = socket_loopback(family, sotype);
+	if (s2 < 0)
+		goto close_s1;
+
+	key = 0;
+	value = s1;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+
+	value = s2;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_EXIST);
+	xclose(s2);
+close_s1:
+	xclose(s1);
+}
+
+/* Exercise the code path where we destroy child sockets that never
+ * got accept()'ed, aka orphans, when parent socket gets closed.
+ */
+static void do_destroy_orphan_child(int family, int sotype, int mapfd)
+{
+	struct sockaddr_storage addr;
+	socklen_t len;
+	int err, s, c;
+	u64 value;
+	u32 key;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+
+	c = xsocket(family, sotype, 0);
+	if (c == -1)
+		goto close_srv;
+
+	xconnect(c, sockaddr(&addr), len);
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+static void test_destroy_orphan_child(struct test_sockmap_listen *skel,
+				      int family, int sotype, int mapfd)
+{
+	int msg_verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
+	int skb_verdict = bpf_program__fd(skel->progs.prog_skb_verdict);
+	const struct test {
+		int progfd;
+		enum bpf_attach_type atype;
+	} tests[] = {
+		{ -1, -1 },
+		{ msg_verdict, BPF_SK_MSG_VERDICT },
+		{ skb_verdict, BPF_SK_SKB_VERDICT },
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		if (t->progfd != -1 &&
+		    xbpf_prog_attach(t->progfd, mapfd, t->atype, 0) != 0)
+			return;
+
+		do_destroy_orphan_child(family, sotype, mapfd);
+
+		if (t->progfd != -1)
+			xbpf_prog_detach2(t->progfd, mapfd, t->atype);
+	}
+}
+
+/* Perform a passive open after removing listening socket from SOCKMAP
+ * to ensure that callbacks get restored properly.
+ */
+static void test_clone_after_delete(struct test_sockmap_listen *skel __always_unused,
+				    int family, int sotype, int mapfd)
+{
+	struct sockaddr_storage addr;
+	socklen_t len;
+	int err, s, c;
+	u64 value;
+	u32 key;
+
+	s = socket_loopback(family, sotype);
+	if (s < 0)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	key = 0;
+	value = s;
+	xbpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
+	xbpf_map_delete_elem(mapfd, &key);
+
+	c = xsocket(family, sotype, 0);
+	if (c < 0)
+		goto close_srv;
+
+	xconnect(c, sockaddr(&addr), len);
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+/* Check that child socket that got created while parent was in a
+ * SOCKMAP, but got accept()'ed only after the parent has been removed
+ * from SOCKMAP, gets cloned without parent psock state or callbacks.
+ */
+static void test_accept_after_delete(struct test_sockmap_listen *skel __always_unused,
+				     int family, int sotype, int mapfd)
+{
+	struct sockaddr_storage addr;
+	const u32 zero = 0;
+	int err, s, c, p;
+	socklen_t len;
+	u64 value;
+
+	s = socket_loopback(family, sotype | SOCK_NONBLOCK);
+	if (s == -1)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	value = s;
+	err = xbpf_map_update_elem(mapfd, &zero, &value, BPF_NOEXIST);
+	if (err)
+		goto close_srv;
+
+	c = xsocket(family, sotype, 0);
+	if (c == -1)
+		goto close_srv;
+
+	/* Create child while parent is in sockmap */
+	err = xconnect(c, sockaddr(&addr), len);
+	if (err)
+		goto close_cli;
+
+	/* Remove parent from sockmap */
+	err = xbpf_map_delete_elem(mapfd, &zero);
+	if (err)
+		goto close_cli;
+
+	p = xaccept_nonblock(s, NULL, NULL);
+	if (p == -1)
+		goto close_cli;
+
+	/* Check that child sk_user_data is not set */
+	value = p;
+	xbpf_map_update_elem(mapfd, &zero, &value, BPF_NOEXIST);
+
+	xclose(p);
+close_cli:
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+/* Check that child socket that got created and accepted while parent
+ * was in a SOCKMAP is cloned without parent psock state or callbacks.
+ */
+static void test_accept_before_delete(struct test_sockmap_listen *skel __always_unused,
+				      int family, int sotype, int mapfd)
+{
+	struct sockaddr_storage addr;
+	const u32 zero = 0, one = 1;
+	int err, s, c, p;
+	socklen_t len;
+	u64 value;
+
+	s = socket_loopback(family, sotype | SOCK_NONBLOCK);
+	if (s == -1)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	value = s;
+	err = xbpf_map_update_elem(mapfd, &zero, &value, BPF_NOEXIST);
+	if (err)
+		goto close_srv;
+
+	c = xsocket(family, sotype, 0);
+	if (c == -1)
+		goto close_srv;
+
+	/* Create & accept child while parent is in sockmap */
+	err = xconnect(c, sockaddr(&addr), len);
+	if (err)
+		goto close_cli;
+
+	p = xaccept_nonblock(s, NULL, NULL);
+	if (p == -1)
+		goto close_cli;
+
+	/* Check that child sk_user_data is not set */
+	value = p;
+	xbpf_map_update_elem(mapfd, &one, &value, BPF_NOEXIST);
+
+	xclose(p);
+close_cli:
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+struct connect_accept_ctx {
+	int sockfd;
+	unsigned int done;
+	unsigned int nr_iter;
+};
+
+static bool is_thread_done(struct connect_accept_ctx *ctx)
+{
+	return READ_ONCE(ctx->done);
+}
+
+static void *connect_accept_thread(void *arg)
+{
+	struct connect_accept_ctx *ctx = arg;
+	struct sockaddr_storage addr;
+	int family, socktype;
+	socklen_t len;
+	int err, i, s;
+
+	s = ctx->sockfd;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto done;
+
+	len = sizeof(family);
+	err = xgetsockopt(s, SOL_SOCKET, SO_DOMAIN, &family, &len);
+	if (err)
+		goto done;
+
+	len = sizeof(socktype);
+	err = xgetsockopt(s, SOL_SOCKET, SO_TYPE, &socktype, &len);
+	if (err)
+		goto done;
+
+	for (i = 0; i < ctx->nr_iter; i++) {
+		int c, p;
+
+		c = xsocket(family, socktype, 0);
+		if (c < 0)
+			break;
+
+		err = xconnect(c, (struct sockaddr *)&addr, sizeof(addr));
+		if (err) {
+			xclose(c);
+			break;
+		}
+
+		p = xaccept_nonblock(s, NULL, NULL);
+		if (p < 0) {
+			xclose(c);
+			break;
+		}
+
+		xclose(p);
+		xclose(c);
+	}
+done:
+	WRITE_ONCE(ctx->done, 1);
+	return NULL;
+}
+
+static void test_syn_recv_insert_delete(struct test_sockmap_listen *skel __always_unused,
+					int family, int sotype, int mapfd)
+{
+	struct connect_accept_ctx ctx = { 0 };
+	struct sockaddr_storage addr;
+	socklen_t len;
+	u32 zero = 0;
+	pthread_t t;
+	int err, s;
+	u64 value;
+
+	s = socket_loopback(family, sotype | SOCK_NONBLOCK);
+	if (s < 0)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close;
+
+	ctx.sockfd = s;
+	ctx.nr_iter = 1000;
+
+	err = xpthread_create(&t, NULL, connect_accept_thread, &ctx);
+	if (err)
+		goto close;
+
+	value = s;
+	while (!is_thread_done(&ctx)) {
+		err = xbpf_map_update_elem(mapfd, &zero, &value, BPF_NOEXIST);
+		if (err)
+			break;
+
+		err = xbpf_map_delete_elem(mapfd, &zero);
+		if (err)
+			break;
+	}
+
+	xpthread_join(t, NULL);
+close:
+	xclose(s);
+}
+
+static void *listen_thread(void *arg)
+{
+	struct sockaddr unspec = { AF_UNSPEC };
+	struct connect_accept_ctx *ctx = arg;
+	int err, i, s;
+
+	s = ctx->sockfd;
+
+	for (i = 0; i < ctx->nr_iter; i++) {
+		err = xlisten(s, 1);
+		if (err)
+			break;
+		err = xconnect(s, &unspec, sizeof(unspec));
+		if (err)
+			break;
+	}
+
+	WRITE_ONCE(ctx->done, 1);
+	return NULL;
+}
+
+static void test_race_insert_listen(struct test_sockmap_listen *skel __always_unused,
+				    int family, int socktype, int mapfd)
+{
+	struct connect_accept_ctx ctx = { 0 };
+	const u32 zero = 0;
+	const int one = 1;
+	pthread_t t;
+	int err, s;
+	u64 value;
+
+	s = xsocket(family, socktype, 0);
+	if (s < 0)
+		return;
+
+	err = xsetsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
+	if (err)
+		goto close;
+
+	ctx.sockfd = s;
+	ctx.nr_iter = 10000;
+
+	err = pthread_create(&t, NULL, listen_thread, &ctx);
+	if (err)
+		goto close;
+
+	value = s;
+	while (!is_thread_done(&ctx)) {
+		err = bpf_map_update_elem(mapfd, &zero, &value, BPF_NOEXIST);
+		/* Expecting EOPNOTSUPP before listen() */
+		if (err && errno != EOPNOTSUPP) {
+			FAIL_ERRNO("map_update");
+			break;
+		}
+
+		err = bpf_map_delete_elem(mapfd, &zero);
+		/* Expecting no entry after unhash on connect(AF_UNSPEC) */
+		if (err && errno != EINVAL && errno != ENOENT) {
+			FAIL_ERRNO("map_delete");
+			break;
+		}
+	}
+
+	xpthread_join(t, NULL);
+close:
+	xclose(s);
+}
+
+static void zero_verdict_count(int mapfd)
+{
+	unsigned int zero = 0;
+	int key;
+
+	key = SK_DROP;
+	xbpf_map_update_elem(mapfd, &key, &zero, BPF_ANY);
+	key = SK_PASS;
+	xbpf_map_update_elem(mapfd, &key, &zero, BPF_ANY);
+}
+
+enum redir_mode {
+	REDIR_INGRESS,
+	REDIR_EGRESS,
+};
+
+static const char *redir_mode_str(enum redir_mode mode)
+{
+	switch (mode) {
+	case REDIR_INGRESS:
+		return "ingress";
+	case REDIR_EGRESS:
+		return "egress";
+	default:
+		return "unknown";
+	}
+}
+
+static void redir_to_connected(int family, int sotype, int sock_mapfd,
+			       int verd_mapfd, enum redir_mode mode)
+{
+	const char *log_prefix = redir_mode_str(mode);
+	int c0, c1, p0, p1;
+	unsigned int pass;
+	int err, n;
+	u32 key;
+	char b;
+
+	zero_verdict_count(verd_mapfd);
+
+	err = create_socket_pairs(family, sotype | SOCK_NONBLOCK, &c0, &c1,
+				  &p0, &p1);
+	if (err)
+		return;
+
+	err = add_to_sockmap(sock_mapfd, p0, p1);
+	if (err)
+		goto close;
+
+	n = write(mode == REDIR_INGRESS ? c1 : p1, "a", 1);
+	if (n < 0)
+		FAIL_ERRNO("%s: write", log_prefix);
+	if (n == 0)
+		FAIL("%s: incomplete write", log_prefix);
+	if (n < 1)
+		goto close;
+
+	key = SK_PASS;
+	err = xbpf_map_lookup_elem(verd_mapfd, &key, &pass);
+	if (err)
+		goto close;
+	if (pass != 1)
+		FAIL("%s: want pass count 1, have %d", log_prefix, pass);
+	n = recv_timeout(c0, &b, 1, 0, IO_TIMEOUT_SEC);
+	if (n < 0)
+		FAIL_ERRNO("%s: recv_timeout", log_prefix);
+	if (n == 0)
+		FAIL("%s: incomplete recv", log_prefix);
+
+close:
+	xclose(p1);
+	xclose(c1);
+	xclose(p0);
+	xclose(c0);
+}
+
+static void test_skb_redir_to_connected(struct test_sockmap_listen *skel,
+					struct bpf_map *inner_map, int family,
+					int sotype)
+{
+	int verdict = bpf_program__fd(skel->progs.prog_stream_verdict);
+	int parser = bpf_program__fd(skel->progs.prog_stream_parser);
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int err;
+
+	err = xbpf_prog_attach(parser, sock_map, BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err)
+		return;
+	err = xbpf_prog_attach(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err)
+		goto detach;
+
+	redir_to_connected(family, sotype, sock_map, verdict_map,
+			   REDIR_INGRESS);
+
+	xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT);
+detach:
+	xbpf_prog_detach2(parser, sock_map, BPF_SK_SKB_STREAM_PARSER);
+}
+
+static void test_msg_redir_to_connected(struct test_sockmap_listen *skel,
+					struct bpf_map *inner_map, int family,
+					int sotype)
+{
+	int verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int err;
+
+	err = xbpf_prog_attach(verdict, sock_map, BPF_SK_MSG_VERDICT, 0);
+	if (err)
+		return;
+
+	redir_to_connected(family, sotype, sock_map, verdict_map, REDIR_EGRESS);
+
+	xbpf_prog_detach2(verdict, sock_map, BPF_SK_MSG_VERDICT);
+}
+
+static void test_msg_redir_to_connected_with_link(struct test_sockmap_listen *skel,
+						  struct bpf_map *inner_map, int family,
+						  int sotype)
+{
+	int prog_msg_verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int link_fd;
+
+	link_fd = bpf_link_create(prog_msg_verdict, sock_map, BPF_SK_MSG_VERDICT, NULL);
+	if (!ASSERT_GE(link_fd, 0, "bpf_link_create"))
+		return;
+
+	redir_to_connected(family, sotype, sock_map, verdict_map, REDIR_EGRESS);
+
+	close(link_fd);
+}
+
+static void redir_to_listening(int family, int sotype, int sock_mapfd,
+			       int verd_mapfd, enum redir_mode mode)
+{
+	const char *log_prefix = redir_mode_str(mode);
+	struct sockaddr_storage addr;
+	int s, c, p, err, n;
+	unsigned int drop;
+	socklen_t len;
+	u32 key;
+
+	zero_verdict_count(verd_mapfd);
+
+	s = socket_loopback(family, sotype | SOCK_NONBLOCK);
+	if (s < 0)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	c = xsocket(family, sotype, 0);
+	if (c < 0)
+		goto close_srv;
+	err = xconnect(c, sockaddr(&addr), len);
+	if (err)
+		goto close_cli;
+
+	p = xaccept_nonblock(s, NULL, NULL);
+	if (p < 0)
+		goto close_cli;
+
+	err = add_to_sockmap(sock_mapfd, s, p);
+	if (err)
+		goto close_peer;
+
+	n = write(mode == REDIR_INGRESS ? c : p, "a", 1);
+	if (n < 0 && errno != EACCES)
+		FAIL_ERRNO("%s: write", log_prefix);
+	if (n == 0)
+		FAIL("%s: incomplete write", log_prefix);
+	if (n < 1)
+		goto close_peer;
+
+	key = SK_DROP;
+	err = xbpf_map_lookup_elem(verd_mapfd, &key, &drop);
+	if (err)
+		goto close_peer;
+	if (drop != 1)
+		FAIL("%s: want drop count 1, have %d", log_prefix, drop);
+
+close_peer:
+	xclose(p);
+close_cli:
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+static void test_skb_redir_to_listening(struct test_sockmap_listen *skel,
+					struct bpf_map *inner_map, int family,
+					int sotype)
+{
+	int verdict = bpf_program__fd(skel->progs.prog_stream_verdict);
+	int parser = bpf_program__fd(skel->progs.prog_stream_parser);
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int err;
+
+	err = xbpf_prog_attach(parser, sock_map, BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err)
+		return;
+	err = xbpf_prog_attach(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err)
+		goto detach;
+
+	redir_to_listening(family, sotype, sock_map, verdict_map,
+			   REDIR_INGRESS);
+
+	xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT);
+detach:
+	xbpf_prog_detach2(parser, sock_map, BPF_SK_SKB_STREAM_PARSER);
+}
+
+static void test_msg_redir_to_listening(struct test_sockmap_listen *skel,
+					struct bpf_map *inner_map, int family,
+					int sotype)
+{
+	int verdict = bpf_program__fd(skel->progs.prog_msg_verdict);
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int err;
+
+	err = xbpf_prog_attach(verdict, sock_map, BPF_SK_MSG_VERDICT, 0);
+	if (err)
+		return;
+
+	redir_to_listening(family, sotype, sock_map, verdict_map, REDIR_EGRESS);
+
+	xbpf_prog_detach2(verdict, sock_map, BPF_SK_MSG_VERDICT);
+}
+
+static void test_msg_redir_to_listening_with_link(struct test_sockmap_listen *skel,
+						  struct bpf_map *inner_map, int family,
+						  int sotype)
+{
+	struct bpf_program *verdict = skel->progs.prog_msg_verdict;
+	int verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	int sock_map = bpf_map__fd(inner_map);
+	struct bpf_link *link;
+
+	link = bpf_program__attach_sockmap(verdict, sock_map);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap"))
+		return;
+
+	redir_to_listening(family, sotype, sock_map, verdict_map, REDIR_EGRESS);
+
+	bpf_link__detach(link);
+}
+
+static void redir_partial(int family, int sotype, int sock_map, int parser_map)
+{
+	int c0 = -1, c1 = -1, p0 = -1, p1 = -1;
+	int err, n, key, value;
+	char buf[] = "abc";
+
+	key = 0;
+	value = sizeof(buf) - 1;
+	err = xbpf_map_update_elem(parser_map, &key, &value, 0);
+	if (err)
+		return;
+
+	err = create_socket_pairs(family, sotype | SOCK_NONBLOCK, &c0, &c1,
+				  &p0, &p1);
+	if (err)
+		goto clean_parser_map;
+
+	err = add_to_sockmap(sock_map, p0, p1);
+	if (err)
+		goto close;
+
+	n = xsend(c1, buf, sizeof(buf), 0);
+	if (n == -1)
+		goto close;
+	if (n < sizeof(buf))
+		FAIL("incomplete write");
+
+	n = xrecv_nonblock(c0, buf, sizeof(buf), 0);
+	if (n != sizeof(buf) - 1)
+		FAIL("expect %zu, received %d", sizeof(buf) - 1, n);
+
+close:
+	xclose(c0);
+	xclose(p0);
+	xclose(c1);
+	xclose(p1);
+
+clean_parser_map:
+	key = 0;
+	value = 0;
+	xbpf_map_update_elem(parser_map, &key, &value, 0);
+}
+
+static void test_skb_redir_partial(struct test_sockmap_listen *skel,
+				   struct bpf_map *inner_map, int family,
+				   int sotype)
+{
+	int verdict = bpf_program__fd(skel->progs.prog_stream_verdict);
+	int parser = bpf_program__fd(skel->progs.prog_stream_parser);
+	int parser_map = bpf_map__fd(skel->maps.parser_map);
+	int sock_map = bpf_map__fd(inner_map);
+	int err;
+
+	err = xbpf_prog_attach(parser, sock_map, BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err)
+		return;
+
+	err = xbpf_prog_attach(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err)
+		goto detach;
+
+	redir_partial(family, sotype, sock_map, parser_map);
+
+	xbpf_prog_detach2(verdict, sock_map, BPF_SK_SKB_STREAM_VERDICT);
+detach:
+	xbpf_prog_detach2(parser, sock_map, BPF_SK_SKB_STREAM_PARSER);
+}
+
+static void test_reuseport_select_listening(int family, int sotype,
+					    int sock_map, int verd_map,
+					    int reuseport_prog)
+{
+	struct sockaddr_storage addr;
+	unsigned int pass;
+	int s, c, err;
+	socklen_t len;
+	u64 value;
+	u32 key;
+
+	zero_verdict_count(verd_map);
+
+	s = socket_loopback_reuseport(family, sotype | SOCK_NONBLOCK,
+				      reuseport_prog);
+	if (s < 0)
+		return;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	key = 0;
+	value = s;
+	err = xbpf_map_update_elem(sock_map, &key, &value, BPF_NOEXIST);
+	if (err)
+		goto close_srv;
+
+	c = xsocket(family, sotype, 0);
+	if (c < 0)
+		goto close_srv;
+	err = xconnect(c, sockaddr(&addr), len);
+	if (err)
+		goto close_cli;
+
+	if (sotype == SOCK_STREAM) {
+		int p;
+
+		p = xaccept_nonblock(s, NULL, NULL);
+		if (p < 0)
+			goto close_cli;
+		xclose(p);
+	} else {
+		char b = 'a';
+		ssize_t n;
+
+		n = xsend(c, &b, sizeof(b), 0);
+		if (n == -1)
+			goto close_cli;
+
+		n = xrecv_nonblock(s, &b, sizeof(b), 0);
+		if (n == -1)
+			goto close_cli;
+	}
+
+	key = SK_PASS;
+	err = xbpf_map_lookup_elem(verd_map, &key, &pass);
+	if (err)
+		goto close_cli;
+	if (pass != 1)
+		FAIL("want pass count 1, have %d", pass);
+
+close_cli:
+	xclose(c);
+close_srv:
+	xclose(s);
+}
+
+static void test_reuseport_select_connected(int family, int sotype,
+					    int sock_map, int verd_map,
+					    int reuseport_prog)
+{
+	struct sockaddr_storage addr;
+	int s, c0, c1, p0, err;
+	unsigned int drop;
+	socklen_t len;
+	u64 value;
+	u32 key;
+
+	zero_verdict_count(verd_map);
+
+	s = socket_loopback_reuseport(family, sotype, reuseport_prog);
+	if (s < 0)
+		return;
+
+	/* Populate sock_map[0] to avoid ENOENT on first connection */
+	key = 0;
+	value = s;
+	err = xbpf_map_update_elem(sock_map, &key, &value, BPF_NOEXIST);
+	if (err)
+		goto close_srv;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	c0 = xsocket(family, sotype, 0);
+	if (c0 < 0)
+		goto close_srv;
+
+	err = xconnect(c0, sockaddr(&addr), len);
+	if (err)
+		goto close_cli0;
+
+	if (sotype == SOCK_STREAM) {
+		p0 = xaccept_nonblock(s, NULL, NULL);
+		if (p0 < 0)
+			goto close_cli0;
+	} else {
+		p0 = xsocket(family, sotype, 0);
+		if (p0 < 0)
+			goto close_cli0;
+
+		len = sizeof(addr);
+		err = xgetsockname(c0, sockaddr(&addr), &len);
+		if (err)
+			goto close_cli0;
+
+		err = xconnect(p0, sockaddr(&addr), len);
+		if (err)
+			goto close_cli0;
+	}
+
+	/* Update sock_map[0] to redirect to a connected socket */
+	key = 0;
+	value = p0;
+	err = xbpf_map_update_elem(sock_map, &key, &value, BPF_EXIST);
+	if (err)
+		goto close_peer0;
+
+	c1 = xsocket(family, sotype, 0);
+	if (c1 < 0)
+		goto close_peer0;
+
+	len = sizeof(addr);
+	err = xgetsockname(s, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv;
+
+	errno = 0;
+	err = connect(c1, sockaddr(&addr), len);
+	if (sotype == SOCK_DGRAM) {
+		char b = 'a';
+		ssize_t n;
+
+		n = xsend(c1, &b, sizeof(b), 0);
+		if (n == -1)
+			goto close_cli1;
+
+		n = recv_timeout(c1, &b, sizeof(b), 0, IO_TIMEOUT_SEC);
+		err = n == -1;
+	}
+	if (!err || errno != ECONNREFUSED)
+		FAIL_ERRNO("connect: expected ECONNREFUSED");
+
+	key = SK_DROP;
+	err = xbpf_map_lookup_elem(verd_map, &key, &drop);
+	if (err)
+		goto close_cli1;
+	if (drop != 1)
+		FAIL("want drop count 1, have %d", drop);
+
+close_cli1:
+	xclose(c1);
+close_peer0:
+	xclose(p0);
+close_cli0:
+	xclose(c0);
+close_srv:
+	xclose(s);
+}
+
+/* Check that redirecting across reuseport groups is not allowed. */
+static void test_reuseport_mixed_groups(int family, int sotype, int sock_map,
+					int verd_map, int reuseport_prog)
+{
+	struct sockaddr_storage addr;
+	int s1, s2, c, err;
+	unsigned int drop;
+	socklen_t len;
+	u32 key;
+
+	zero_verdict_count(verd_map);
+
+	/* Create two listeners, each in its own reuseport group */
+	s1 = socket_loopback_reuseport(family, sotype, reuseport_prog);
+	if (s1 < 0)
+		return;
+
+	s2 = socket_loopback_reuseport(family, sotype, reuseport_prog);
+	if (s2 < 0)
+		goto close_srv1;
+
+	err = add_to_sockmap(sock_map, s1, s2);
+	if (err)
+		goto close_srv2;
+
+	/* Connect to s2, reuseport BPF selects s1 via sock_map[0] */
+	len = sizeof(addr);
+	err = xgetsockname(s2, sockaddr(&addr), &len);
+	if (err)
+		goto close_srv2;
+
+	c = xsocket(family, sotype, 0);
+	if (c < 0)
+		goto close_srv2;
+
+	err = connect(c, sockaddr(&addr), len);
+	if (sotype == SOCK_DGRAM) {
+		char b = 'a';
+		ssize_t n;
+
+		n = xsend(c, &b, sizeof(b), 0);
+		if (n == -1)
+			goto close_cli;
+
+		n = recv_timeout(c, &b, sizeof(b), 0, IO_TIMEOUT_SEC);
+		err = n == -1;
+	}
+	if (!err || errno != ECONNREFUSED) {
+		FAIL_ERRNO("connect: expected ECONNREFUSED");
+		goto close_cli;
+	}
+
+	/* Expect drop, can't redirect outside of reuseport group */
+	key = SK_DROP;
+	err = xbpf_map_lookup_elem(verd_map, &key, &drop);
+	if (err)
+		goto close_cli;
+	if (drop != 1)
+		FAIL("want drop count 1, have %d", drop);
+
+close_cli:
+	xclose(c);
+close_srv2:
+	xclose(s2);
+close_srv1:
+	xclose(s1);
+}
+
+#define TEST(fn, ...)                                                          \
+	{                                                                      \
+		fn, #fn, __VA_ARGS__                                           \
+	}
+
+static void test_ops_cleanup(const struct bpf_map *map)
+{
+	int err, mapfd;
+	u32 key;
+
+	mapfd = bpf_map__fd(map);
+
+	for (key = 0; key < bpf_map__max_entries(map); key++) {
+		err = bpf_map_delete_elem(mapfd, &key);
+		if (err && errno != EINVAL && errno != ENOENT)
+			FAIL_ERRNO("map_delete: expected EINVAL/ENOENT");
+	}
+}
+
+static const char *family_str(sa_family_t family)
+{
+	switch (family) {
+	case AF_INET:
+		return "IPv4";
+	case AF_INET6:
+		return "IPv6";
+	case AF_UNIX:
+		return "Unix";
+	case AF_VSOCK:
+		return "VSOCK";
+	default:
+		return "unknown";
+	}
+}
+
+static const char *map_type_str(const struct bpf_map *map)
+{
+	int type;
+
+	if (!map)
+		return "invalid";
+	type = bpf_map__type(map);
+
+	switch (type) {
+	case BPF_MAP_TYPE_SOCKMAP:
+		return "sockmap";
+	case BPF_MAP_TYPE_SOCKHASH:
+		return "sockhash";
+	default:
+		return "unknown";
+	}
+}
+
+static const char *sotype_str(int sotype)
+{
+	switch (sotype) {
+	case SOCK_DGRAM:
+		return "UDP";
+	case SOCK_STREAM:
+		return "TCP";
+	default:
+		return "unknown";
+	}
+}
+
+static void test_ops(struct test_sockmap_listen *skel, struct bpf_map *map,
+		     int family, int sotype)
+{
+	const struct op_test {
+		void (*fn)(struct test_sockmap_listen *skel,
+			   int family, int sotype, int mapfd);
+		const char *name;
+		int sotype;
+	} tests[] = {
+		/* insert */
+		TEST(test_insert_invalid),
+		TEST(test_insert_opened),
+		TEST(test_insert_bound, SOCK_STREAM),
+		TEST(test_insert),
+		/* delete */
+		TEST(test_delete_after_insert),
+		TEST(test_delete_after_close),
+		/* lookup */
+		TEST(test_lookup_after_insert),
+		TEST(test_lookup_after_delete),
+		TEST(test_lookup_32_bit_value),
+		/* update */
+		TEST(test_update_existing),
+		/* races with insert/delete */
+		TEST(test_destroy_orphan_child, SOCK_STREAM),
+		TEST(test_syn_recv_insert_delete, SOCK_STREAM),
+		TEST(test_race_insert_listen, SOCK_STREAM),
+		/* child clone */
+		TEST(test_clone_after_delete, SOCK_STREAM),
+		TEST(test_accept_after_delete, SOCK_STREAM),
+		TEST(test_accept_before_delete, SOCK_STREAM),
+	};
+	const char *family_name, *map_name, *sotype_name;
+	const struct op_test *t;
+	char s[MAX_TEST_NAME];
+	int map_fd;
+
+	family_name = family_str(family);
+	map_name = map_type_str(map);
+	sotype_name = sotype_str(sotype);
+	map_fd = bpf_map__fd(map);
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		snprintf(s, sizeof(s), "%s %s %s %s", map_name, family_name,
+			 sotype_name, t->name);
+
+		if (t->sotype != 0 && t->sotype != sotype)
+			continue;
+
+		if (!test__start_subtest(s))
+			continue;
+
+		t->fn(skel, family, sotype, map_fd);
+		test_ops_cleanup(map);
+	}
+}
+
+static void test_redir(struct test_sockmap_listen *skel, struct bpf_map *map,
+		       int family, int sotype)
+{
+	const struct redir_test {
+		void (*fn)(struct test_sockmap_listen *skel,
+			   struct bpf_map *map, int family, int sotype);
+		const char *name;
+	} tests[] = {
+		TEST(test_skb_redir_to_connected),
+		TEST(test_skb_redir_to_listening),
+		TEST(test_skb_redir_partial),
+		TEST(test_msg_redir_to_connected),
+		TEST(test_msg_redir_to_connected_with_link),
+		TEST(test_msg_redir_to_listening),
+		TEST(test_msg_redir_to_listening_with_link),
+	};
+	const char *family_name, *map_name;
+	const struct redir_test *t;
+	char s[MAX_TEST_NAME];
+
+	family_name = family_str(family);
+	map_name = map_type_str(map);
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		snprintf(s, sizeof(s), "%s %s %s", map_name, family_name,
+			 t->name);
+
+		if (!test__start_subtest(s))
+			continue;
+
+		t->fn(skel, map, family, sotype);
+	}
+}
+
+static void test_reuseport(struct test_sockmap_listen *skel,
+			   struct bpf_map *map, int family, int sotype)
+{
+	const struct reuseport_test {
+		void (*fn)(int family, int sotype, int socket_map,
+			   int verdict_map, int reuseport_prog);
+		const char *name;
+		int sotype;
+	} tests[] = {
+		TEST(test_reuseport_select_listening),
+		TEST(test_reuseport_select_connected),
+		TEST(test_reuseport_mixed_groups),
+	};
+	int socket_map, verdict_map, reuseport_prog;
+	const char *family_name, *map_name, *sotype_name;
+	const struct reuseport_test *t;
+	char s[MAX_TEST_NAME];
+
+	family_name = family_str(family);
+	map_name = map_type_str(map);
+	sotype_name = sotype_str(sotype);
+
+	socket_map = bpf_map__fd(map);
+	verdict_map = bpf_map__fd(skel->maps.verdict_map);
+	reuseport_prog = bpf_program__fd(skel->progs.prog_reuseport);
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		snprintf(s, sizeof(s), "%s %s %s %s", map_name, family_name,
+			 sotype_name, t->name);
+
+		if (t->sotype != 0 && t->sotype != sotype)
+			continue;
+
+		if (!test__start_subtest(s))
+			continue;
+
+		t->fn(family, sotype, socket_map, verdict_map, reuseport_prog);
+	}
+}
+
+static void run_tests(struct test_sockmap_listen *skel, struct bpf_map *map,
+		      int family)
+{
+	test_ops(skel, map, family, SOCK_STREAM);
+	test_ops(skel, map, family, SOCK_DGRAM);
+	test_redir(skel, map, family, SOCK_STREAM);
+	test_reuseport(skel, map, family, SOCK_STREAM);
+	test_reuseport(skel, map, family, SOCK_DGRAM);
+}
+
+void serial_test_sockmap_listen(void)
+{
+	struct test_sockmap_listen *skel;
+
+	skel = test_sockmap_listen__open_and_load();
+	if (!skel) {
+		FAIL("skeleton open/load failed");
+		return;
+	}
+
+	skel->bss->test_sockmap = true;
+	run_tests(skel, skel->maps.sock_map, AF_INET);
+	run_tests(skel, skel->maps.sock_map, AF_INET6);
+
+	skel->bss->test_sockmap = false;
+	run_tests(skel, skel->maps.sock_hash, AF_INET);
+	run_tests(skel, skel->maps.sock_hash, AF_INET6);
+
+	test_sockmap_listen__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_redir.c b/tools/testing/selftests/bpf/prog_tests/sockmap_redir.c
new file mode 100644
index 000000000000..9c461d93113d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_redir.c
@@ -0,0 +1,465 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for sockmap/sockhash redirection.
+ *
+ * BPF_MAP_TYPE_SOCKMAP
+ * BPF_MAP_TYPE_SOCKHASH
+ *	x
+ * sk_msg-to-egress
+ * sk_msg-to-ingress
+ * sk_skb-to-egress
+ * sk_skb-to-ingress
+ *	x
+ * AF_INET, SOCK_STREAM
+ * AF_INET6, SOCK_STREAM
+ * AF_INET, SOCK_DGRAM
+ * AF_INET6, SOCK_DGRAM
+ * AF_UNIX, SOCK_STREAM
+ * AF_UNIX, SOCK_DGRAM
+ * AF_VSOCK, SOCK_STREAM
+ * AF_VSOCK, SOCK_SEQPACKET
+ */
+
+#include <errno.h>
+#include <error.h>
+#include <sched.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <linux/string.h>
+#include <linux/vm_sockets.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "linux/const.h"
+#include "test_progs.h"
+#include "sockmap_helpers.h"
+#include "test_sockmap_redir.skel.h"
+
+/* The meaning of SUPPORTED is "will redirect packet as expected".
+ */
+#define SUPPORTED		_BITUL(0)
+
+/* Note on sk_skb-to-ingress ->af_vsock:
+ *
+ * Peer socket may receive the packet some time after the return from sendmsg().
+ * In a typical usage scenario, recvmsg() will block until the redirected packet
+ * appears in the destination queue, or timeout if the packet was dropped. By
+ * that point, the verdict map has already been updated to reflect what has
+ * happened.
+ *
+ * But sk_skb-to-ingress/af_vsock is an unsupported combination, so no recvmsg()
+ * takes place. Which means we may race the execution of the verdict logic and
+ * read map_verd before it has been updated, i.e. we might observe
+ * map_verd[SK_DROP]=0 instead of map_verd[SK_DROP]=1.
+ *
+ * This confuses the selftest logic: if there was no packet dropped, where's the
+ * packet? So here's a heuristic: on map_verd[SK_DROP]=map_verd[SK_PASS]=0
+ * (which implies the verdict program has not been ran) just re-read the verdict
+ * map again.
+ */
+#define UNSUPPORTED_RACY_VERD	_BITUL(1)
+
+enum prog_type {
+	SK_MSG_EGRESS,
+	SK_MSG_INGRESS,
+	SK_SKB_EGRESS,
+	SK_SKB_INGRESS,
+};
+
+enum {
+	SEND_INNER = 0,
+	SEND_OUTER,
+};
+
+enum {
+	RECV_INNER = 0,
+	RECV_OUTER,
+};
+
+struct maps {
+	int in;
+	int out;
+	int verd;
+};
+
+struct combo_spec {
+	enum prog_type prog_type;
+	const char *in, *out;
+};
+
+struct redir_spec {
+	const char *name;
+	int idx_send;
+	int idx_recv;
+	enum prog_type prog_type;
+};
+
+struct socket_spec {
+	int family;
+	int sotype;
+	int send_flags;
+	int in[2];
+	int out[2];
+};
+
+static int socket_spec_pairs(struct socket_spec *s)
+{
+	return create_socket_pairs(s->family, s->sotype,
+				   &s->in[0], &s->out[0],
+				   &s->in[1], &s->out[1]);
+}
+
+static void socket_spec_close(struct socket_spec *s)
+{
+	xclose(s->in[0]);
+	xclose(s->in[1]);
+	xclose(s->out[0]);
+	xclose(s->out[1]);
+}
+
+static void get_redir_params(struct redir_spec *redir,
+			     struct test_sockmap_redir *skel, int *prog_fd,
+			     enum bpf_attach_type *attach_type,
+			     int *redirect_flags)
+{
+	enum prog_type type = redir->prog_type;
+	struct bpf_program *prog;
+	bool sk_msg;
+
+	sk_msg = type == SK_MSG_INGRESS || type == SK_MSG_EGRESS;
+	prog = sk_msg ? skel->progs.prog_msg_verdict : skel->progs.prog_skb_verdict;
+
+	*prog_fd = bpf_program__fd(prog);
+	*attach_type = sk_msg ? BPF_SK_MSG_VERDICT : BPF_SK_SKB_VERDICT;
+
+	if (type == SK_MSG_INGRESS || type == SK_SKB_INGRESS)
+		*redirect_flags = BPF_F_INGRESS;
+	else
+		*redirect_flags = 0;
+}
+
+static void try_recv(const char *prefix, int fd, int flags, bool expect_success)
+{
+	ssize_t n;
+	char buf;
+
+	errno = 0;
+	n = recv(fd, &buf, 1, flags);
+	if (n < 0 && expect_success)
+		FAIL_ERRNO("%s: unexpected failure: retval=%zd", prefix, n);
+	if (!n && !expect_success)
+		FAIL("%s: expected failure: retval=%zd", prefix, n);
+}
+
+static void handle_unsupported(int sd_send, int sd_peer, int sd_in, int sd_out,
+			       int sd_recv, int map_verd, int status)
+{
+	unsigned int drop, pass;
+	char recv_buf;
+	ssize_t n;
+
+get_verdict:
+	if (xbpf_map_lookup_elem(map_verd, &u32(SK_DROP), &drop) ||
+	    xbpf_map_lookup_elem(map_verd, &u32(SK_PASS), &pass))
+		return;
+
+	if (pass == 0 && drop == 0 && (status & UNSUPPORTED_RACY_VERD)) {
+		sched_yield();
+		goto get_verdict;
+	}
+
+	if (pass != 0) {
+		FAIL("unsupported: wanted verdict pass 0, have %u", pass);
+		return;
+	}
+
+	/* If nothing was dropped, packet should have reached the peer */
+	if (drop == 0) {
+		errno = 0;
+		n = recv_timeout(sd_peer, &recv_buf, 1, 0, IO_TIMEOUT_SEC);
+		if (n != 1)
+			FAIL_ERRNO("unsupported: packet missing, retval=%zd", n);
+	}
+
+	/* Ensure queues are empty */
+	try_recv("bpf.recv(sd_send)", sd_send, MSG_DONTWAIT, false);
+	if (sd_in != sd_send)
+		try_recv("bpf.recv(sd_in)", sd_in, MSG_DONTWAIT, false);
+
+	try_recv("bpf.recv(sd_out)", sd_out, MSG_DONTWAIT, false);
+	if (sd_recv != sd_out)
+		try_recv("bpf.recv(sd_recv)", sd_recv, MSG_DONTWAIT, false);
+}
+
+static void test_send_redir_recv(int sd_send, int send_flags, int sd_peer,
+				 int sd_in, int sd_out, int sd_recv,
+				 struct maps *maps, int status)
+{
+	unsigned int drop, pass;
+	char *send_buf = "ab";
+	char recv_buf = '\0';
+	ssize_t n, len = 1;
+
+	/* Zero out the verdict map */
+	if (xbpf_map_update_elem(maps->verd, &u32(SK_DROP), &u32(0), BPF_ANY) ||
+	    xbpf_map_update_elem(maps->verd, &u32(SK_PASS), &u32(0), BPF_ANY))
+		return;
+
+	if (xbpf_map_update_elem(maps->in, &u32(0), &u64(sd_in), BPF_NOEXIST))
+		return;
+
+	if (xbpf_map_update_elem(maps->out, &u32(0), &u64(sd_out), BPF_NOEXIST))
+		goto del_in;
+
+	/* Last byte is OOB data when send_flags has MSG_OOB bit set */
+	if (send_flags & MSG_OOB)
+		len++;
+	n = send(sd_send, send_buf, len, send_flags);
+	if (n >= 0 && n < len)
+		FAIL("incomplete send");
+	if (n < 0) {
+		/* sk_msg redirect combo not supported? */
+		if (status & SUPPORTED || errno != EACCES)
+			FAIL_ERRNO("send");
+		goto out;
+	}
+
+	if (!(status & SUPPORTED)) {
+		handle_unsupported(sd_send, sd_peer, sd_in, sd_out, sd_recv,
+				   maps->verd, status);
+		goto out;
+	}
+
+	errno = 0;
+	n = recv_timeout(sd_recv, &recv_buf, 1, 0, IO_TIMEOUT_SEC);
+	if (n != 1) {
+		FAIL_ERRNO("recv_timeout()");
+		goto out;
+	}
+
+	/* Check verdict _after_ recv(); af_vsock may need time to catch up */
+	if (xbpf_map_lookup_elem(maps->verd, &u32(SK_DROP), &drop) ||
+	    xbpf_map_lookup_elem(maps->verd, &u32(SK_PASS), &pass))
+		goto out;
+
+	if (drop != 0 || pass != 1)
+		FAIL("unexpected verdict drop/pass: wanted 0/1, have %u/%u",
+		     drop, pass);
+
+	if (recv_buf != send_buf[0])
+		FAIL("recv(): payload check, %02x != %02x", recv_buf, send_buf[0]);
+
+	if (send_flags & MSG_OOB) {
+		/* Fail reading OOB while in sockmap */
+		try_recv("bpf.recv(sd_out, MSG_OOB)", sd_out,
+			 MSG_OOB | MSG_DONTWAIT, false);
+
+		/* Remove sd_out from sockmap */
+		xbpf_map_delete_elem(maps->out, &u32(0));
+
+		/* Check that OOB was dropped on redirect */
+		try_recv("recv(sd_out, MSG_OOB)", sd_out,
+			 MSG_OOB | MSG_DONTWAIT, false);
+
+		goto del_in;
+	}
+out:
+	xbpf_map_delete_elem(maps->out, &u32(0));
+del_in:
+	xbpf_map_delete_elem(maps->in, &u32(0));
+}
+
+static int is_redir_supported(enum prog_type type, const char *in,
+			      const char *out)
+{
+	/* Matching based on strings returned by socket_kind_to_str():
+	 * tcp4, udp4, tcp6, udp6, u_str, u_dgr, v_str, v_seq
+	 * Plus a wildcard: any
+	 * Not in use: u_seq, v_dgr
+	 */
+	struct combo_spec *c, combos[] = {
+		/* Send to local: TCP -> any, but vsock */
+		{ SK_MSG_INGRESS,	"tcp",	"tcp"	},
+		{ SK_MSG_INGRESS,	"tcp",	"udp"	},
+		{ SK_MSG_INGRESS,	"tcp",	"u_str"	},
+		{ SK_MSG_INGRESS,	"tcp",	"u_dgr"	},
+
+		/* Send to egress: TCP -> TCP */
+		{ SK_MSG_EGRESS,	"tcp",	"tcp"	},
+
+		/* Ingress to egress: any -> any */
+		{ SK_SKB_EGRESS,	"any",	"any"	},
+
+		/* Ingress to local: any -> any, but vsock */
+		{ SK_SKB_INGRESS,	"any",	"tcp"	},
+		{ SK_SKB_INGRESS,	"any",	"udp"	},
+		{ SK_SKB_INGRESS,	"any",	"u_str"	},
+		{ SK_SKB_INGRESS,	"any",	"u_dgr"	},
+	};
+
+	for (c = combos; c < combos + ARRAY_SIZE(combos); c++) {
+		if (c->prog_type == type &&
+		    (!strcmp(c->in, "any") || strstarts(in, c->in)) &&
+		    (!strcmp(c->out, "any") || strstarts(out, c->out)))
+			return SUPPORTED;
+	}
+
+	return 0;
+}
+
+static int get_support_status(enum prog_type type, const char *in,
+			      const char *out)
+{
+	int status = is_redir_supported(type, in, out);
+
+	if (type == SK_SKB_INGRESS && strstarts(out, "v_"))
+		status |= UNSUPPORTED_RACY_VERD;
+
+	return status;
+}
+
+static void test_socket(enum bpf_map_type type, struct redir_spec *redir,
+			struct maps *maps, struct socket_spec *s_in,
+			struct socket_spec *s_out)
+{
+	int fd_in, fd_out, fd_send, fd_peer, fd_recv, flags, status;
+	const char *in_str, *out_str;
+	char s[MAX_TEST_NAME];
+
+	fd_in = s_in->in[0];
+	fd_out = s_out->out[0];
+	fd_send = s_in->in[redir->idx_send];
+	fd_peer = s_in->in[redir->idx_send ^ 1];
+	fd_recv = s_out->out[redir->idx_recv];
+	flags = s_in->send_flags;
+
+	in_str = socket_kind_to_str(fd_in);
+	out_str = socket_kind_to_str(fd_out);
+	status = get_support_status(redir->prog_type, in_str, out_str);
+
+	snprintf(s, sizeof(s),
+		 "%-4s %-17s %-5s %s %-5s%6s",
+		 /* hash sk_skb-to-ingress u_str → v_str (OOB) */
+		 type == BPF_MAP_TYPE_SOCKMAP ? "map" : "hash",
+		 redir->name,
+		 in_str,
+		 status & SUPPORTED ? "→" : " ",
+		 out_str,
+		 (flags & MSG_OOB) ? "(OOB)" : "");
+
+	if (!test__start_subtest(s))
+		return;
+
+	test_send_redir_recv(fd_send, flags, fd_peer, fd_in, fd_out, fd_recv,
+			     maps, status);
+}
+
+static void test_redir(enum bpf_map_type type, struct redir_spec *redir,
+		       struct maps *maps)
+{
+	struct socket_spec *s, sockets[] = {
+		{ AF_INET, SOCK_STREAM },
+		// { AF_INET, SOCK_STREAM, MSG_OOB }, /* Known to be broken */
+		{ AF_INET6, SOCK_STREAM },
+		{ AF_INET, SOCK_DGRAM },
+		{ AF_INET6, SOCK_DGRAM },
+		{ AF_UNIX, SOCK_STREAM },
+		{ AF_UNIX, SOCK_STREAM, MSG_OOB },
+		{ AF_UNIX, SOCK_DGRAM },
+		// { AF_UNIX, SOCK_SEQPACKET},	/* Unsupported BPF_MAP_UPDATE_ELEM */
+		{ AF_VSOCK, SOCK_STREAM },
+		// { AF_VSOCK, SOCK_DGRAM },	/* Unsupported socket() */
+		{ AF_VSOCK, SOCK_SEQPACKET },
+	};
+
+	for (s = sockets; s < sockets + ARRAY_SIZE(sockets); s++)
+		if (socket_spec_pairs(s))
+			goto out;
+
+	/* Intra-proto */
+	for (s = sockets; s < sockets + ARRAY_SIZE(sockets); s++)
+		test_socket(type, redir, maps, s, s);
+
+	/* Cross-proto */
+	for (int i = 0; i < ARRAY_SIZE(sockets); i++) {
+		for (int j = 0; j < ARRAY_SIZE(sockets); j++) {
+			struct socket_spec *out = &sockets[j];
+			struct socket_spec *in = &sockets[i];
+
+			/* Skip intra-proto and between variants */
+			if (out->send_flags ||
+			    (in->family == out->family &&
+			     in->sotype == out->sotype))
+				continue;
+
+			test_socket(type, redir, maps, in, out);
+		}
+	}
+out:
+	while (--s >= sockets)
+		socket_spec_close(s);
+}
+
+static void test_map(enum bpf_map_type type)
+{
+	struct redir_spec *r, redirs[] = {
+		{ "sk_msg-to-ingress", SEND_INNER, RECV_INNER, SK_MSG_INGRESS },
+		{ "sk_msg-to-egress", SEND_INNER, RECV_OUTER, SK_MSG_EGRESS },
+		{ "sk_skb-to-egress", SEND_OUTER, RECV_OUTER, SK_SKB_EGRESS },
+		{ "sk_skb-to-ingress", SEND_OUTER, RECV_INNER, SK_SKB_INGRESS },
+	};
+
+	for (r = redirs; r < redirs + ARRAY_SIZE(redirs); r++) {
+		enum bpf_attach_type attach_type;
+		struct test_sockmap_redir *skel;
+		struct maps maps;
+		int prog_fd;
+
+		skel = test_sockmap_redir__open_and_load();
+		if (!skel) {
+			FAIL("open_and_load");
+			return;
+		}
+
+		switch (type) {
+		case BPF_MAP_TYPE_SOCKMAP:
+			maps.in = bpf_map__fd(skel->maps.nop_map);
+			maps.out = bpf_map__fd(skel->maps.sock_map);
+			break;
+		case BPF_MAP_TYPE_SOCKHASH:
+			maps.in = bpf_map__fd(skel->maps.nop_hash);
+			maps.out = bpf_map__fd(skel->maps.sock_hash);
+			break;
+		default:
+			FAIL("Unsupported bpf_map_type");
+			return;
+		}
+
+		skel->bss->redirect_type = type;
+		maps.verd = bpf_map__fd(skel->maps.verdict_map);
+		get_redir_params(r, skel, &prog_fd, &attach_type,
+				 &skel->bss->redirect_flags);
+
+		if (xbpf_prog_attach(prog_fd, maps.in, attach_type, 0))
+			return;
+
+		test_redir(type, r, &maps);
+
+		if (xbpf_prog_detach2(prog_fd, maps.in, attach_type))
+			return;
+
+		test_sockmap_redir__destroy(skel);
+	}
+}
+
+void serial_test_sockmap_redir(void)
+{
+	test_map(BPF_MAP_TYPE_SOCKMAP);
+	test_map(BPF_MAP_TYPE_SOCKHASH);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_strp.c b/tools/testing/selftests/bpf/prog_tests/sockmap_strp.c
new file mode 100644
index 000000000000..621b3b71888e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_strp.c
@@ -0,0 +1,454 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <error.h>
+#include <netinet/tcp.h>
+#include <test_progs.h>
+#include "sockmap_helpers.h"
+#include "test_skmsg_load_helpers.skel.h"
+#include "test_sockmap_strp.skel.h"
+
+#define STRP_PKT_HEAD_LEN 4
+#define STRP_PKT_BODY_LEN 6
+#define STRP_PKT_FULL_LEN (STRP_PKT_HEAD_LEN + STRP_PKT_BODY_LEN)
+
+static const char packet[STRP_PKT_FULL_LEN] = "head+body\0";
+static const int test_packet_num = 100;
+
+/* Current implementation of tcp_bpf_recvmsg_parser() invokes data_ready
+ * with sk held if an skb exists in sk_receive_queue. Then for the
+ * data_ready implementation of strparser, it will delay the read
+ * operation if sk is held and EAGAIN is returned.
+ */
+static int sockmap_strp_consume_pre_data(int p)
+{
+	int recvd;
+	bool retried = false;
+	char rcv[10];
+
+retry:
+	errno = 0;
+	recvd = recv_timeout(p, rcv, sizeof(rcv), 0, 1);
+	if (recvd < 0 && errno == EAGAIN && retried == false) {
+		/* On the first call, EAGAIN will certainly be returned.
+		 * A 1-second wait is enough for the workqueue to finish.
+		 */
+		sleep(1);
+		retried = true;
+		goto retry;
+	}
+
+	if (!ASSERT_EQ(recvd, STRP_PKT_FULL_LEN, "recv error or truncated data") ||
+	    !ASSERT_OK(memcmp(packet, rcv, STRP_PKT_FULL_LEN),
+				"data mismatch"))
+		return -1;
+	return 0;
+}
+
+static struct test_sockmap_strp *sockmap_strp_init(int *out_map, bool pass,
+						   bool need_parser)
+{
+	struct test_sockmap_strp *strp = NULL;
+	int verdict, parser;
+	int err;
+
+	strp = test_sockmap_strp__open_and_load();
+	*out_map = bpf_map__fd(strp->maps.sock_map);
+
+	if (need_parser)
+		parser = bpf_program__fd(strp->progs.prog_skb_parser_partial);
+	else
+		parser = bpf_program__fd(strp->progs.prog_skb_parser);
+
+	if (pass)
+		verdict = bpf_program__fd(strp->progs.prog_skb_verdict_pass);
+	else
+		verdict = bpf_program__fd(strp->progs.prog_skb_verdict);
+
+	err = bpf_prog_attach(parser, *out_map, BPF_SK_SKB_STREAM_PARSER, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach stream parser"))
+		goto err;
+
+	err = bpf_prog_attach(verdict, *out_map, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!ASSERT_OK(err, "bpf_prog_attach stream verdict"))
+		goto err;
+
+	return strp;
+err:
+	test_sockmap_strp__destroy(strp);
+	return NULL;
+}
+
+/* Dispatch packets to different socket by packet size:
+ *
+ *                      ------  ------
+ *                     | pkt4 || pkt1 |... > remote socket
+ *  ------ ------     / ------  ------
+ * | pkt8 | pkt7 |...
+ *  ------ ------     \ ------  ------
+ *                     | pkt3 || pkt2 |... > local socket
+ *                      ------  ------
+ */
+static void test_sockmap_strp_dispatch_pkt(int family, int sotype)
+{
+	int i, j, zero = 0, one = 1, recvd;
+	int err, map;
+	int c0 = -1, p0 = -1, c1 = -1, p1 = -1;
+	struct test_sockmap_strp *strp = NULL;
+	int test_cnt = 6;
+	char rcv[10];
+	struct {
+		char	data[7];
+		int	data_len;
+		int	send_cnt;
+		int	*receiver;
+	} send_dir[2] = {
+		/* data expected to deliver to local */
+		{"llllll", 6, 0, &p0},
+		/* data expected to deliver to remote */
+		{"rrrrr",  5, 0, &c1}
+	};
+
+	strp = sockmap_strp_init(&map, false, false);
+	if (!ASSERT_TRUE(strp, "sockmap_strp_init"))
+		return;
+
+	err = create_socket_pairs(family, sotype, &c0, &c1, &p0, &p1);
+	if (!ASSERT_OK(err, "create_socket_pairs()"))
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &p0, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p0)"))
+		goto out_close;
+
+	err = bpf_map_update_elem(map, &one, &p1, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p1)"))
+		goto out_close;
+
+	err = setsockopt(c1, IPPROTO_TCP, TCP_NODELAY, &zero, sizeof(zero));
+	if (!ASSERT_OK(err, "setsockopt(TCP_NODELAY)"))
+		goto out_close;
+
+	/* deliver data with data size greater than 5 to local */
+	strp->data->verdict_max_size = 5;
+
+	for (i = 0; i < test_cnt; i++) {
+		int d = i % 2;
+
+		xsend(c0, send_dir[d].data, send_dir[d].data_len, 0);
+		send_dir[d].send_cnt++;
+	}
+
+	for (i = 0; i < 2; i++) {
+		for (j = 0; j < send_dir[i].send_cnt; j++) {
+			int expected = send_dir[i].data_len;
+
+			recvd = recv_timeout(*send_dir[i].receiver, rcv,
+					     expected, MSG_DONTWAIT,
+					     IO_TIMEOUT_SEC);
+			if (!ASSERT_EQ(recvd, expected, "recv_timeout()"))
+				goto out_close;
+			if (!ASSERT_OK(memcmp(send_dir[i].data, rcv, recvd),
+				       "data mismatch"))
+				goto out_close;
+		}
+	}
+out_close:
+	close(c0);
+	close(c1);
+	close(p0);
+	close(p1);
+out:
+	test_sockmap_strp__destroy(strp);
+}
+
+/* We have multiple packets in one skb
+ * ------------ ------------ ------------
+ * |  packet1  |   packet2  |  ...
+ * ------------ ------------ ------------
+ */
+static void test_sockmap_strp_multiple_pkt(int family, int sotype)
+{
+	int i, zero = 0;
+	int sent, recvd, total;
+	int err, map;
+	int c = -1, p = -1;
+	struct test_sockmap_strp *strp = NULL;
+	char *snd = NULL, *rcv = NULL;
+
+	strp = sockmap_strp_init(&map, true, true);
+	if (!ASSERT_TRUE(strp, "sockmap_strp_init"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (err)
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(zero, p)"))
+		goto out_close;
+
+	/* construct multiple packets in one buffer */
+	total = test_packet_num * STRP_PKT_FULL_LEN;
+	snd = malloc(total);
+	rcv = malloc(total + 1);
+	if (!ASSERT_TRUE(snd, "malloc(snd)") ||
+	    !ASSERT_TRUE(rcv, "malloc(rcv)"))
+		goto out_close;
+
+	for (i = 0; i < test_packet_num; i++) {
+		memcpy(snd + i * STRP_PKT_FULL_LEN,
+		       packet, STRP_PKT_FULL_LEN);
+	}
+
+	sent = xsend(c, snd, total, 0);
+	if (!ASSERT_EQ(sent, total, "xsend(c)"))
+		goto out_close;
+
+	/* try to recv one more byte to avoid truncation check */
+	recvd = recv_timeout(p, rcv, total + 1, MSG_DONTWAIT, IO_TIMEOUT_SEC);
+	if (!ASSERT_EQ(recvd, total, "recv(rcv)"))
+		goto out_close;
+
+	/* we sent TCP segment with multiple encapsulation
+	 * then check whether packets are handled correctly
+	 */
+	if (!ASSERT_OK(memcmp(snd, rcv, total), "data mismatch"))
+		goto out_close;
+
+out_close:
+	close(c);
+	close(p);
+	if (snd)
+		free(snd);
+	if (rcv)
+		free(rcv);
+out:
+	test_sockmap_strp__destroy(strp);
+}
+
+/* Test strparser with partial read */
+static void test_sockmap_strp_partial_read(int family, int sotype)
+{
+	int zero = 0, recvd, off;
+	int err, map;
+	int c = -1, p = -1;
+	struct test_sockmap_strp *strp = NULL;
+	char rcv[STRP_PKT_FULL_LEN + 1] = "0";
+
+	strp = sockmap_strp_init(&map, true, true);
+	if (!ASSERT_TRUE(strp, "sockmap_strp_init"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (err)
+		goto out;
+
+	/* sk_data_ready of 'p' will be replaced by strparser handler */
+	err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(zero, p)"))
+		goto out_close;
+
+	/* 1.1 send partial head, 1 byte header left */
+	off = STRP_PKT_HEAD_LEN - 1;
+	xsend(c, packet, off, 0);
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, 1);
+	if (!ASSERT_EQ(-1, recvd, "partial head sent, expected no data"))
+		goto out_close;
+
+	/* 1.2 send remaining head and body */
+	xsend(c, packet + off, STRP_PKT_FULL_LEN - off, 0);
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, IO_TIMEOUT_SEC);
+	if (!ASSERT_EQ(recvd, STRP_PKT_FULL_LEN, "expected full data"))
+		goto out_close;
+
+	/* 2.1 send partial head, 1 byte header left */
+	off = STRP_PKT_HEAD_LEN - 1;
+	xsend(c, packet, off, 0);
+
+	/* 2.2 send remaining head and partial body, 1 byte body left */
+	xsend(c, packet + off, STRP_PKT_FULL_LEN - off - 1, 0);
+	off = STRP_PKT_FULL_LEN - 1;
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, 1);
+	if (!ASSERT_EQ(-1, recvd, "partial body sent, expected no data"))
+		goto out_close;
+
+	/* 2.3 send remaining body */
+	xsend(c, packet + off, STRP_PKT_FULL_LEN - off, 0);
+	recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT, IO_TIMEOUT_SEC);
+	if (!ASSERT_EQ(recvd, STRP_PKT_FULL_LEN, "expected full data"))
+		goto out_close;
+
+out_close:
+	close(c);
+	close(p);
+
+out:
+	test_sockmap_strp__destroy(strp);
+}
+
+/* Test simple socket read/write with strparser + FIONREAD */
+static void test_sockmap_strp_pass(int family, int sotype, bool fionread)
+{
+	int zero = 0, pkt_size = STRP_PKT_FULL_LEN, sent, recvd, avail;
+	int err, map;
+	int c = -1, p = -1;
+	int test_cnt = 10, i;
+	struct test_sockmap_strp *strp = NULL;
+	char rcv[STRP_PKT_FULL_LEN + 1] = "0";
+
+	strp = sockmap_strp_init(&map, true, true);
+	if (!ASSERT_TRUE(strp, "sockmap_strp_init"))
+		return;
+
+	err = create_pair(family, sotype, &c, &p);
+	if (err)
+		goto out;
+
+	/* inject some data before bpf process, it should be read
+	 * correctly because we check sk_receive_queue in
+	 * tcp_bpf_recvmsg_parser().
+	 */
+	sent = xsend(c, packet, pkt_size, 0);
+	if (!ASSERT_EQ(sent, pkt_size, "xsend(pre-data)"))
+		goto out_close;
+
+	/* sk_data_ready of 'p' will be replaced by strparser handler */
+	err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p)"))
+		goto out_close;
+
+	/* consume previous data we injected */
+	if (sockmap_strp_consume_pre_data(p))
+		goto out_close;
+
+	/* Previously, we encountered issues such as deadlocks and
+	 * sequence errors that resulted in the inability to read
+	 * continuously. Therefore, we perform multiple iterations
+	 * of testing here.
+	 */
+	for (i = 0; i < test_cnt; i++) {
+		sent = xsend(c, packet, pkt_size, 0);
+		if (!ASSERT_EQ(sent, pkt_size, "xsend(c)"))
+			goto out_close;
+
+		recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT,
+				     IO_TIMEOUT_SEC);
+		if (!ASSERT_EQ(recvd, pkt_size, "recv_timeout(p)") ||
+		    !ASSERT_OK(memcmp(packet, rcv, pkt_size),
+				  "memcmp, data mismatch"))
+			goto out_close;
+	}
+
+	if (fionread) {
+		sent = xsend(c, packet, pkt_size, 0);
+		if (!ASSERT_EQ(sent, pkt_size, "second xsend(c)"))
+			goto out_close;
+
+		err = ioctl(p, FIONREAD, &avail);
+		if (!ASSERT_OK(err, "ioctl(FIONREAD) error") ||
+		    !ASSERT_EQ(avail, pkt_size, "ioctl(FIONREAD)"))
+			goto out_close;
+
+		recvd = recv_timeout(p, rcv, sizeof(rcv), MSG_DONTWAIT,
+				     IO_TIMEOUT_SEC);
+		if (!ASSERT_EQ(recvd, pkt_size, "second recv_timeout(p)") ||
+		    !ASSERT_OK(memcmp(packet, rcv, pkt_size),
+			      "second memcmp, data mismatch"))
+			goto out_close;
+	}
+
+out_close:
+	close(c);
+	close(p);
+
+out:
+	test_sockmap_strp__destroy(strp);
+}
+
+/* Test strparser with verdict mode */
+static void test_sockmap_strp_verdict(int family, int sotype)
+{
+	int zero = 0, one = 1, sent, recvd, off;
+	int err, map;
+	int c0 = -1, p0 = -1, c1 = -1, p1 = -1;
+	struct test_sockmap_strp *strp = NULL;
+	char rcv[STRP_PKT_FULL_LEN + 1] = "0";
+
+	strp = sockmap_strp_init(&map, false, true);
+	if (!ASSERT_TRUE(strp, "sockmap_strp_init"))
+		return;
+
+	/* We simulate a reverse proxy server.
+	 * When p0 receives data from c0, we forward it to c1.
+	 * From c1's perspective, it will consider this data
+	 * as being sent by p1.
+	 */
+	err = create_socket_pairs(family, sotype, &c0, &c1, &p0, &p1);
+	if (!ASSERT_OK(err, "create_socket_pairs()"))
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &p0, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p0)"))
+		goto out_close;
+
+	err = bpf_map_update_elem(map, &one, &p1, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem(p1)"))
+		goto out_close;
+
+	sent = xsend(c0, packet, STRP_PKT_FULL_LEN, 0);
+	if (!ASSERT_EQ(sent, STRP_PKT_FULL_LEN, "xsend(c0)"))
+		goto out_close;
+
+	recvd = recv_timeout(c1, rcv, sizeof(rcv), MSG_DONTWAIT,
+			     IO_TIMEOUT_SEC);
+	if (!ASSERT_EQ(recvd, STRP_PKT_FULL_LEN, "recv_timeout(c1)") ||
+	    !ASSERT_OK(memcmp(packet, rcv, STRP_PKT_FULL_LEN),
+			  "received data does not match the sent data"))
+		goto out_close;
+
+	/* send again to ensure the stream is functioning correctly. */
+	sent = xsend(c0, packet, STRP_PKT_FULL_LEN, 0);
+	if (!ASSERT_EQ(sent, STRP_PKT_FULL_LEN, "second xsend(c0)"))
+		goto out_close;
+
+	/* partial read */
+	off = STRP_PKT_FULL_LEN / 2;
+	recvd = recv_timeout(c1, rcv, off, MSG_DONTWAIT,
+			     IO_TIMEOUT_SEC);
+	recvd += recv_timeout(c1, rcv + off, sizeof(rcv) - off, MSG_DONTWAIT,
+			      IO_TIMEOUT_SEC);
+
+	if (!ASSERT_EQ(recvd, STRP_PKT_FULL_LEN, "partial recv_timeout(c1)") ||
+	    !ASSERT_OK(memcmp(packet, rcv, STRP_PKT_FULL_LEN),
+			  "partial received data does not match the sent data"))
+		goto out_close;
+
+out_close:
+	close(c0);
+	close(c1);
+	close(p0);
+	close(p1);
+out:
+	test_sockmap_strp__destroy(strp);
+}
+
+void test_sockmap_strp(void)
+{
+	if (test__start_subtest("sockmap strp tcp pass"))
+		test_sockmap_strp_pass(AF_INET, SOCK_STREAM, false);
+	if (test__start_subtest("sockmap strp tcp v6 pass"))
+		test_sockmap_strp_pass(AF_INET6, SOCK_STREAM, false);
+	if (test__start_subtest("sockmap strp tcp pass fionread"))
+		test_sockmap_strp_pass(AF_INET, SOCK_STREAM, true);
+	if (test__start_subtest("sockmap strp tcp v6 pass fionread"))
+		test_sockmap_strp_pass(AF_INET6, SOCK_STREAM, true);
+	if (test__start_subtest("sockmap strp tcp verdict"))
+		test_sockmap_strp_verdict(AF_INET, SOCK_STREAM);
+	if (test__start_subtest("sockmap strp tcp v6 verdict"))
+		test_sockmap_strp_verdict(AF_INET6, SOCK_STREAM);
+	if (test__start_subtest("sockmap strp tcp partial read"))
+		test_sockmap_strp_partial_read(AF_INET, SOCK_STREAM);
+	if (test__start_subtest("sockmap strp tcp multiple packets"))
+		test_sockmap_strp_multiple_pkt(AF_INET, SOCK_STREAM);
+	if (test__start_subtest("sockmap strp tcp dispatch"))
+		test_sockmap_strp_dispatch_pkt(AF_INET, SOCK_STREAM);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt.c b/tools/testing/selftests/bpf/prog_tests/sockopt.c
new file mode 100644
index 000000000000..eaac83a7f388
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt.c
@@ -0,0 +1,1220 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <io_uring/mini_liburing.h>
+#include "cgroup_helpers.h"
+
+static char bpf_log_buf[4096];
+static bool verbose;
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+enum sockopt_test_error {
+	OK = 0,
+	DENY_LOAD,
+	DENY_ATTACH,
+	EOPNOTSUPP_GETSOCKOPT,
+	EPERM_GETSOCKOPT,
+	EFAULT_GETSOCKOPT,
+	EPERM_SETSOCKOPT,
+	EFAULT_SETSOCKOPT,
+};
+
+static struct sockopt_test {
+	const char			*descr;
+	const struct bpf_insn		insns[64];
+	enum bpf_prog_type		prog_type;
+	enum bpf_attach_type		attach_type;
+	enum bpf_attach_type		expected_attach_type;
+
+	int				set_optname;
+	int				set_level;
+	const char			set_optval[64];
+	socklen_t			set_optlen;
+
+	int				get_optname;
+	int				get_level;
+	const char			get_optval[64];
+	socklen_t			get_optlen;
+	socklen_t			get_optlen_ret;
+
+	enum sockopt_test_error		error;
+	bool				io_uring_support;
+} tests[] = {
+
+	/* ==================== getsockopt ====================  */
+
+	{
+		.descr = "getsockopt: no expected_attach_type",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = 0,
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: wrong expected_attach_type",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+		.error = DENY_ATTACH,
+	},
+	{
+		.descr = "getsockopt: bypass bpf hook",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 1 << 3 },
+		.set_optlen = 1,
+
+		.get_optval = { 1 << 3 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "getsockopt: return EPERM from bpf hook",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.get_optname = IP_TOS,
+
+		.get_optlen = 1,
+		.error = EPERM_GETSOCKOPT,
+	},
+	{
+		.descr = "getsockopt: no optval bounds check, deny loading",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+
+			/* ctx->optval[0] = 0x80 */
+			BPF_MOV64_IMM(BPF_REG_0, 0x80),
+			BPF_STX_MEM(BPF_W, BPF_REG_6, BPF_REG_0, 0),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: read ctx->level",
+		.insns = {
+			/* r6 = ctx->level */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, level)),
+
+			/* if (ctx->level == 123) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 123, 4),
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = 123,
+
+		.get_optlen = 1,
+	},
+	{
+		.descr = "getsockopt: deny writing to ctx->level",
+		.insns = {
+			/* ctx->level = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, level)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: read ctx->optname",
+		.insns = {
+			/* r6 = ctx->optname */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optname)),
+
+			/* if (ctx->optname == 123) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 123, 4),
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_optname = 123,
+
+		.get_optlen = 1,
+	},
+	{
+		.descr = "getsockopt: read ctx->retval",
+		.insns = {
+			/* r6 = ctx->retval */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.get_optname = IP_TOS,
+		.get_optlen = 1,
+	},
+	{
+		.descr = "getsockopt: deny writing to ctx->optname",
+		.insns = {
+			/* ctx->optname = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optname)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: read ctx->optlen",
+		.insns = {
+			/* r6 = ctx->optlen */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optlen)),
+
+			/* if (ctx->optlen == 64) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 64, 4),
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_SOCKET,
+		.get_optlen = 64,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "getsockopt: deny bigger ctx->optlen",
+		.insns = {
+			/* ctx->optlen = 65 */
+			BPF_MOV64_IMM(BPF_REG_0, 65),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_optlen = 64,
+
+		.error = EFAULT_GETSOCKOPT,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "getsockopt: ignore >PAGE_SIZE optlen",
+		.insns = {
+			/* write 0xFF to the first optval byte */
+
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r2 = ctx->optval */
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
+			/* r6 = ctx->optval + 1 */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
+
+			/* r7 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+			/* ctx->optval[0] = 0xF0 */
+			BPF_ST_MEM(BPF_B, BPF_REG_2, 0, 0xFF),
+			/* } */
+
+			/* retval changes are ignored */
+			/* ctx->retval = 5 */
+			BPF_MOV64_IMM(BPF_REG_0, 5),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = 1234,
+		.get_optname = 5678,
+		.get_optval = {}, /* the changes are ignored */
+		.get_optlen = PAGE_SIZE + 1,
+		.error = EOPNOTSUPP_GETSOCKOPT,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "getsockopt: support smaller ctx->optlen",
+		.insns = {
+			/* ctx->optlen = 32 */
+			BPF_MOV64_IMM(BPF_REG_0, 32),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_SOCKET,
+		.get_optlen = 64,
+		.get_optlen_ret = 32,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "getsockopt: deny writing to ctx->optval",
+		.insns = {
+			/* ctx->optval = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optval)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: deny writing to ctx->optval_end",
+		.insns = {
+			/* ctx->optval_end = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optval_end)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "getsockopt: rewrite value",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r2 = ctx->optval */
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
+			/* r6 = ctx->optval + 1 */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
+
+			/* r7 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+			/* ctx->optval[0] = 0xF0 */
+			BPF_ST_MEM(BPF_B, BPF_REG_2, 0, 0xF0),
+			/* } */
+
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1*/
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.get_optname = IP_TOS,
+
+		.get_optval = { 0xF0 },
+		.get_optlen = 1,
+	},
+
+	/* ==================== setsockopt ====================  */
+
+	{
+		.descr = "setsockopt: no expected_attach_type",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = 0,
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: wrong expected_attach_type",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_GETSOCKOPT,
+		.error = DENY_ATTACH,
+	},
+	{
+		.descr = "setsockopt: bypass bpf hook",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 1 << 3 },
+		.set_optlen = 1,
+
+		.get_optval = { 1 << 3 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "setsockopt: return EPERM from bpf hook",
+		.insns = {
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_level = SOL_IP,
+		.set_optname = IP_TOS,
+
+		.set_optlen = 1,
+		.error = EPERM_SETSOCKOPT,
+	},
+	{
+		.descr = "setsockopt: no optval bounds check, deny loading",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+
+			/* r0 = ctx->optval[0] */
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6, 0),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: read ctx->level",
+		.insns = {
+			/* r6 = ctx->level */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, level)),
+
+			/* if (ctx->level == 123) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 123, 4),
+			/* ctx->optlen = -1 */
+			BPF_MOV64_IMM(BPF_REG_0, -1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_level = 123,
+
+		.set_optlen = 1,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: allow changing ctx->level",
+		.insns = {
+			/* ctx->level = SOL_IP */
+			BPF_MOV64_IMM(BPF_REG_0, SOL_IP),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, level)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = 234, /* should be rewritten to SOL_IP */
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 1 << 3 },
+		.set_optlen = 1,
+		.get_optval = { 1 << 3 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "setsockopt: read ctx->optname",
+		.insns = {
+			/* r6 = ctx->optname */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optname)),
+
+			/* if (ctx->optname == 123) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 123, 4),
+			/* ctx->optlen = -1 */
+			BPF_MOV64_IMM(BPF_REG_0, -1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_optname = 123,
+
+		.set_optlen = 1,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: allow changing ctx->optname",
+		.insns = {
+			/* ctx->optname = IP_TOS */
+			BPF_MOV64_IMM(BPF_REG_0, IP_TOS),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optname)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = 456, /* should be rewritten to IP_TOS */
+
+		.set_optval = { 1 << 3 },
+		.set_optlen = 1,
+		.get_optval = { 1 << 3 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "setsockopt: read ctx->optlen",
+		.insns = {
+			/* r6 = ctx->optlen */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optlen)),
+
+			/* if (ctx->optlen == 64) { */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 64, 4),
+			/* ctx->optlen = -1 */
+			BPF_MOV64_IMM(BPF_REG_0, -1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } else { */
+			/* return 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_optlen = 64,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: ctx->optlen == -1 is ok",
+		.insns = {
+			/* ctx->optlen = -1 */
+			BPF_MOV64_IMM(BPF_REG_0, -1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_optlen = 64,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: deny ctx->optlen < 0 (except -1)",
+		.insns = {
+			/* ctx->optlen = -2 */
+			BPF_MOV64_IMM(BPF_REG_0, -2),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_optlen = 4,
+
+		.error = EFAULT_SETSOCKOPT,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: deny ctx->optlen > input optlen",
+		.insns = {
+			/* ctx->optlen = 65 */
+			BPF_MOV64_IMM(BPF_REG_0, 65),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_optlen = 64,
+
+		.error = EFAULT_SETSOCKOPT,
+		.io_uring_support = true,
+	},
+	{
+		.descr = "setsockopt: ignore >PAGE_SIZE optlen",
+		.insns = {
+			/* write 0xFF to the first optval byte */
+
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r2 = ctx->optval */
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
+			/* r6 = ctx->optval + 1 */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
+
+			/* r7 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+			/* ctx->optval[0] = 0xF0 */
+			BPF_ST_MEM(BPF_B, BPF_REG_2, 0, 0xF0),
+			/* } */
+
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.set_level = SOL_IP,
+		.set_optname = IP_TOS,
+		.set_optval = {},
+		.set_optlen = PAGE_SIZE + 1,
+
+		.get_level = SOL_IP,
+		.get_optname = IP_TOS,
+		.get_optval = {}, /* the changes are ignored */
+		.get_optlen = 4,
+	},
+	{
+		.descr = "setsockopt: allow changing ctx->optlen within bounds",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r2 = ctx->optval */
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_6),
+			/* r6 = ctx->optval + 1 */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1),
+
+			/* r7 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+			/* ctx->optval[0] = 1 << 3 */
+			BPF_ST_MEM(BPF_B, BPF_REG_2, 0, 1 << 3),
+			/* } */
+
+			/* ctx->optlen = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optlen)),
+
+			/* return 1*/
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 1, 1, 1, 1 },
+		.set_optlen = 4,
+		.get_optval = { 1 << 3 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "setsockopt: deny write ctx->retval",
+		.insns = {
+			/* ctx->retval = 0 */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: deny read ctx->retval",
+		.insns = {
+			/* r6 = ctx->retval */
+			BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, retval)),
+
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: deny writing to ctx->optval",
+		.insns = {
+			/* ctx->optval = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optval)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: deny writing to ctx->optval_end",
+		.insns = {
+			/* ctx->optval_end = 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sockopt, optval_end)),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.error = DENY_LOAD,
+	},
+	{
+		.descr = "setsockopt: allow IP_TOS <= 128",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r7 = ctx->optval + 1 */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 1),
+
+			/* r8 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_8, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 4),
+
+			/* r9 = ctx->optval[0] */
+			BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_6, 0),
+
+			/* if (ctx->optval[0] < 128) */
+			BPF_JMP_IMM(BPF_JGT, BPF_REG_9, 128, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } */
+
+			/* } else { */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 0x80 },
+		.set_optlen = 1,
+		.get_optval = { 0x80 },
+		.get_optlen = 1,
+	},
+	{
+		.descr = "setsockopt: deny IP_TOS > 128",
+		.insns = {
+			/* r6 = ctx->optval */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval)),
+			/* r7 = ctx->optval + 1 */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 1),
+
+			/* r8 = ctx->optval_end */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_8, BPF_REG_1,
+				    offsetof(struct bpf_sockopt, optval_end)),
+
+			/* if (ctx->optval + 1 <= ctx->optval_end) { */
+			BPF_JMP_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 4),
+
+			/* r9 = ctx->optval[0] */
+			BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_6, 0),
+
+			/* if (ctx->optval[0] < 128) */
+			BPF_JMP_IMM(BPF_JGT, BPF_REG_9, 128, 2),
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+			/* } */
+
+			/* } else { */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			/* } */
+
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+
+		.get_level = SOL_IP,
+		.set_level = SOL_IP,
+
+		.get_optname = IP_TOS,
+		.set_optname = IP_TOS,
+
+		.set_optval = { 0x81 },
+		.set_optlen = 1,
+		.get_optval = { 0x00 },
+		.get_optlen = 1,
+
+		.error = EPERM_SETSOCKOPT,
+	},
+
+	/* ==================== prog_type ====================  */
+
+	{
+		.descr = "can attach only BPF_CGROUP_SETSOCKOP",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+		.attach_type = BPF_CGROUP_SETSOCKOPT,
+		.expected_attach_type = 0,
+		.error = DENY_ATTACH,
+	},
+
+	{
+		.descr = "can attach only BPF_CGROUP_GETSOCKOP",
+		.insns = {
+			/* return 1 */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+
+		},
+		.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+		.attach_type = BPF_CGROUP_GETSOCKOPT,
+		.expected_attach_type = 0,
+		.error = DENY_ATTACH,
+	},
+};
+
+static int load_prog(const struct bpf_insn *insns,
+		     enum bpf_prog_type prog_type,
+		     enum bpf_attach_type expected_attach_type)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.expected_attach_type = expected_attach_type,
+		.log_level = 2,
+		.log_buf = bpf_log_buf,
+		.log_size = sizeof(bpf_log_buf),
+	);
+	int fd, insns_cnt = 0;
+
+	for (;
+	     insns[insns_cnt].code != (BPF_JMP | BPF_EXIT);
+	     insns_cnt++) {
+	}
+	insns_cnt++;
+
+	fd = bpf_prog_load(prog_type, NULL, "GPL", insns, insns_cnt, &opts);
+	if (verbose && fd < 0)
+		fprintf(stderr, "%s\n", bpf_log_buf);
+
+	return fd;
+}
+
+/* Core function that handles io_uring ring initialization,
+ * sending SQE with sockopt command and waiting for the CQE.
+ */
+static int uring_sockopt(int op, int fd, int level, int optname,
+			 const void *optval, socklen_t optlen)
+{
+	struct io_uring_cqe *cqe;
+	struct io_uring_sqe *sqe;
+	struct io_uring ring;
+	int err;
+
+	err = io_uring_queue_init(1, &ring, 0);
+	if (!ASSERT_OK(err, "io_uring initialization"))
+		return err;
+
+	sqe = io_uring_get_sqe(&ring);
+	if (!ASSERT_NEQ(sqe, NULL, "Get an SQE")) {
+		err = -1;
+		goto fail;
+	}
+
+	io_uring_prep_cmd(sqe, op, fd, level, optname, optval, optlen);
+
+	err = io_uring_submit(&ring);
+	if (!ASSERT_EQ(err, 1, "Submit SQE"))
+		goto fail;
+
+	err = io_uring_wait_cqe(&ring, &cqe);
+	if (!ASSERT_OK(err, "Wait for CQE"))
+		goto fail;
+
+	err = cqe->res;
+
+fail:
+	io_uring_queue_exit(&ring);
+
+	return err;
+}
+
+static int uring_setsockopt(int fd, int level, int optname, const void *optval,
+			    socklen_t optlen)
+{
+	return uring_sockopt(SOCKET_URING_OP_SETSOCKOPT, fd, level, optname,
+			     optval, optlen);
+}
+
+static int uring_getsockopt(int fd, int level, int optname, void *optval,
+			    socklen_t *optlen)
+{
+	int ret = uring_sockopt(SOCKET_URING_OP_GETSOCKOPT, fd, level, optname,
+				optval, *optlen);
+	if (ret < 0)
+		return ret;
+
+	/* Populate optlen back to be compatible with systemcall interface,
+	 * and simplify the test.
+	 */
+	*optlen = ret;
+
+	return 0;
+}
+
+/* Execute the setsocktopt operation */
+static int call_setsockopt(bool use_io_uring, int fd, int level, int optname,
+			   const void *optval, socklen_t optlen)
+{
+	if (use_io_uring)
+		return uring_setsockopt(fd, level, optname, optval, optlen);
+
+	return setsockopt(fd, level, optname, optval, optlen);
+}
+
+/* Execute the getsocktopt operation */
+static int call_getsockopt(bool use_io_uring, int fd, int level, int optname,
+			   void *optval, socklen_t *optlen)
+{
+	if (use_io_uring)
+		return uring_getsockopt(fd, level, optname, optval, optlen);
+
+	return getsockopt(fd, level, optname, optval, optlen);
+}
+
+static int run_test(int cgroup_fd, struct sockopt_test *test, bool use_io_uring,
+		    bool use_link)
+{
+	int prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT;
+	int sock_fd, err, prog_fd, link_fd = -1;
+	void *optval = NULL;
+	int ret = 0;
+
+	if (test->prog_type)
+		prog_type = test->prog_type;
+
+	prog_fd = load_prog(test->insns, prog_type, test->expected_attach_type);
+	if (prog_fd < 0) {
+		if (test->error == DENY_LOAD)
+			return 0;
+
+		log_err("Failed to load BPF program");
+		return -1;
+	}
+
+	if (use_link) {
+		err = bpf_link_create(prog_fd, cgroup_fd, test->attach_type, NULL);
+		link_fd = err;
+	} else {
+		err = bpf_prog_attach(prog_fd, cgroup_fd, test->attach_type, 0);
+	}
+	if (err < 0) {
+		if (test->error == DENY_ATTACH)
+			goto close_prog_fd;
+
+		log_err("Failed to attach BPF program");
+		ret = -1;
+		goto close_prog_fd;
+	}
+
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock_fd < 0) {
+		log_err("Failed to create AF_INET socket");
+		ret = -1;
+		goto detach_prog;
+	}
+
+	if (test->set_optlen) {
+		if (test->set_optlen >= PAGE_SIZE) {
+			int num_pages = test->set_optlen / PAGE_SIZE;
+			int remainder = test->set_optlen % PAGE_SIZE;
+
+			test->set_optlen = num_pages * sysconf(_SC_PAGESIZE) + remainder;
+		}
+
+		err = call_setsockopt(use_io_uring, sock_fd, test->set_level,
+				      test->set_optname, test->set_optval,
+				      test->set_optlen);
+		if (err) {
+			if (errno == EPERM && test->error == EPERM_SETSOCKOPT)
+				goto close_sock_fd;
+			if (errno == EFAULT && test->error == EFAULT_SETSOCKOPT)
+				goto free_optval;
+
+			log_err("Failed to call setsockopt");
+			ret = -1;
+			goto close_sock_fd;
+		}
+	}
+
+	if (test->get_optlen) {
+		if (test->get_optlen >= PAGE_SIZE) {
+			int num_pages = test->get_optlen / PAGE_SIZE;
+			int remainder = test->get_optlen % PAGE_SIZE;
+
+			test->get_optlen = num_pages * sysconf(_SC_PAGESIZE) + remainder;
+		}
+
+		optval = malloc(test->get_optlen);
+		memset(optval, 0, test->get_optlen);
+		socklen_t optlen = test->get_optlen;
+		socklen_t expected_get_optlen = test->get_optlen_ret ?:
+			test->get_optlen;
+
+		err = call_getsockopt(use_io_uring, sock_fd, test->get_level,
+				      test->get_optname, optval, &optlen);
+		if (err) {
+			if (errno == EOPNOTSUPP && test->error == EOPNOTSUPP_GETSOCKOPT)
+				goto free_optval;
+			if (errno == EPERM && test->error == EPERM_GETSOCKOPT)
+				goto free_optval;
+			if (errno == EFAULT && test->error == EFAULT_GETSOCKOPT)
+				goto free_optval;
+
+			log_err("Failed to call getsockopt");
+			ret = -1;
+			goto free_optval;
+		}
+
+		if (optlen != expected_get_optlen) {
+			errno = 0;
+			log_err("getsockopt returned unexpected optlen");
+			ret = -1;
+			goto free_optval;
+		}
+
+		if (memcmp(optval, test->get_optval, optlen) != 0) {
+			errno = 0;
+			log_err("getsockopt returned unexpected optval");
+			ret = -1;
+			goto free_optval;
+		}
+	}
+
+	ret = test->error != OK;
+
+free_optval:
+	free(optval);
+close_sock_fd:
+	close(sock_fd);
+detach_prog:
+	if (use_link) {
+		if (link_fd >= 0)
+			close(link_fd);
+	} else {
+		bpf_prog_detach2(prog_fd, cgroup_fd, test->attach_type);
+	}
+close_prog_fd:
+	close(prog_fd);
+	return ret;
+}
+
+void test_sockopt(void)
+{
+	int cgroup_fd, i;
+
+	cgroup_fd = test__join_cgroup("/sockopt");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (!test__start_subtest(tests[i].descr))
+			continue;
+
+		ASSERT_OK(run_test(cgroup_fd, &tests[i], false, false),
+			  tests[i].descr);
+		ASSERT_OK(run_test(cgroup_fd, &tests[i], false, true),
+			  tests[i].descr);
+		if (tests[i].io_uring_support)
+			ASSERT_OK(run_test(cgroup_fd, &tests[i], true, false),
+				  tests[i].descr);
+	}
+
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c
new file mode 100644
index 000000000000..7cd8be2780ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt_inherit.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+#include "sockopt_inherit.skel.h"
+
+#define SOL_CUSTOM			0xdeadbeef
+#define CUSTOM_INHERIT1			0
+#define CUSTOM_INHERIT2			1
+#define CUSTOM_LISTENER			2
+
+static int verify_sockopt(int fd, int optname, const char *msg, char expected)
+{
+	socklen_t optlen = 1;
+	char buf = 0;
+	int err;
+
+	err = getsockopt(fd, SOL_CUSTOM, optname, &buf, &optlen);
+	if (err) {
+		log_err("%s: failed to call getsockopt", msg);
+		return 1;
+	}
+
+	printf("%s %d: got=0x%x ? expected=0x%x\n", msg, optname, buf, expected);
+
+	if (buf != expected) {
+		log_err("%s: unexpected getsockopt value %d != %d", msg,
+			buf, expected);
+		return 1;
+	}
+
+	return 0;
+}
+
+static pthread_mutex_t server_started_mtx = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t server_started = PTHREAD_COND_INITIALIZER;
+
+static void *server_thread(void *arg)
+{
+	struct sockaddr_storage addr;
+	socklen_t len = sizeof(addr);
+	int fd = *(int *)arg;
+	int client_fd;
+	int err = 0;
+
+	err = listen(fd, 1);
+
+	pthread_mutex_lock(&server_started_mtx);
+	pthread_cond_signal(&server_started);
+	pthread_mutex_unlock(&server_started_mtx);
+
+	if (!ASSERT_GE(err, 0, "listed on socket"))
+		return NULL;
+
+	err += verify_sockopt(fd, CUSTOM_INHERIT1, "listen", 1);
+	err += verify_sockopt(fd, CUSTOM_INHERIT2, "listen", 1);
+	err += verify_sockopt(fd, CUSTOM_LISTENER, "listen", 1);
+
+	client_fd = accept(fd, (struct sockaddr *)&addr, &len);
+	if (!ASSERT_GE(client_fd, 0, "accept client"))
+		return NULL;
+
+	err += verify_sockopt(client_fd, CUSTOM_INHERIT1, "accept", 1);
+	err += verify_sockopt(client_fd, CUSTOM_INHERIT2, "accept", 1);
+	err += verify_sockopt(client_fd, CUSTOM_LISTENER, "accept", 0);
+
+	close(client_fd);
+
+	return (void *)(long)err;
+}
+
+static int custom_cb(int fd, void *opts)
+{
+	char buf;
+	int err;
+	int i;
+
+	for (i = CUSTOM_INHERIT1; i <= CUSTOM_LISTENER; i++) {
+		buf = 0x01;
+		err = setsockopt(fd, SOL_CUSTOM, i, &buf, 1);
+		if (err) {
+			log_err("Failed to call setsockopt(%d)", i);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static void run_test(int cgroup_fd)
+{
+	struct bpf_link *link_getsockopt = NULL;
+	struct bpf_link *link_setsockopt = NULL;
+	struct network_helper_opts opts = {
+		.post_socket_cb = custom_cb,
+	};
+	int server_fd = -1, client_fd;
+	struct sockaddr_in addr = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = htonl(INADDR_LOOPBACK),
+	};
+	struct sockopt_inherit *obj;
+	void *server_err;
+	pthread_t tid;
+	int err;
+
+	obj = sockopt_inherit__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		return;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	link_getsockopt = bpf_program__attach_cgroup(obj->progs._getsockopt,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_getsockopt, "cg-attach-getsockopt"))
+		goto close_bpf_object;
+
+	link_setsockopt = bpf_program__attach_cgroup(obj->progs._setsockopt,
+						     cgroup_fd);
+	if (!ASSERT_OK_PTR(link_setsockopt, "cg-attach-setsockopt"))
+		goto close_bpf_object;
+
+	server_fd = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr,
+				      sizeof(addr), &opts);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto close_bpf_object;
+
+	pthread_mutex_lock(&server_started_mtx);
+	if (!ASSERT_OK(pthread_create(&tid, NULL, server_thread,
+				      (void *)&server_fd), "pthread_create")) {
+		pthread_mutex_unlock(&server_started_mtx);
+		goto close_server_fd;
+	}
+	pthread_cond_wait(&server_started, &server_started_mtx);
+	pthread_mutex_unlock(&server_started_mtx);
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_server"))
+		goto close_server_fd;
+
+	ASSERT_OK(verify_sockopt(client_fd, CUSTOM_INHERIT1, "connect", 0), "verify_sockopt1");
+	ASSERT_OK(verify_sockopt(client_fd, CUSTOM_INHERIT2, "connect", 0), "verify_sockopt2");
+	ASSERT_OK(verify_sockopt(client_fd, CUSTOM_LISTENER, "connect", 0), "verify_sockopt ener");
+
+	pthread_join(tid, &server_err);
+
+	err = (int)(long)server_err;
+	ASSERT_OK(err, "pthread_join retval");
+
+	close(client_fd);
+
+close_server_fd:
+	close(server_fd);
+close_bpf_object:
+	bpf_link__destroy(link_getsockopt);
+	bpf_link__destroy(link_setsockopt);
+
+	sockopt_inherit__destroy(obj);
+}
+
+void test_sockopt_inherit(void)
+{
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/sockopt_inherit");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		return;
+
+	run_test(cgroup_fd);
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_multi.c b/tools/testing/selftests/bpf/prog_tests/sockopt_multi.c
new file mode 100644
index 000000000000..759bbb6f8c5f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt_multi.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#include "sockopt_multi.skel.h"
+
+static int run_getsockopt_test(struct sockopt_multi *obj, int cg_parent,
+			       int cg_child, int sock_fd)
+{
+	struct bpf_link *link_parent = NULL;
+	struct bpf_link *link_child = NULL;
+	socklen_t optlen;
+	__u8 buf;
+	int err;
+
+	/* Set IP_TOS to the expected value (0x80). */
+
+	buf = 0x80;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0x80) {
+		log_err("Unexpected getsockopt 0x%x != 0x80 without BPF", buf);
+		err = -1;
+		goto detach;
+	}
+
+	/* Attach child program and make sure it returns new value:
+	 * - kernel:      -> 0x80
+	 * - child:  0x80 -> 0x90
+	 */
+
+	link_child = bpf_program__attach_cgroup(obj->progs._getsockopt_child,
+						cg_child);
+	if (!ASSERT_OK_PTR(link_child, "cg-attach-getsockopt_child"))
+		goto detach;
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0x90) {
+		log_err("Unexpected getsockopt 0x%x != 0x90", buf);
+		err = -1;
+		goto detach;
+	}
+
+	/* Attach parent program and make sure it returns new value:
+	 * - kernel:      -> 0x80
+	 * - child:  0x80 -> 0x90
+	 * - parent: 0x90 -> 0xA0
+	 */
+
+	link_parent = bpf_program__attach_cgroup(obj->progs._getsockopt_parent,
+						 cg_parent);
+	if (!ASSERT_OK_PTR(link_parent, "cg-attach-getsockopt_parent"))
+		goto detach;
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0xA0) {
+		log_err("Unexpected getsockopt 0x%x != 0xA0", buf);
+		err = -1;
+		goto detach;
+	}
+
+	/* Setting unexpected initial sockopt should return EPERM:
+	 * - kernel: -> 0x40
+	 * - child:  unexpected 0x40, EPERM
+	 * - parent: unexpected 0x40, EPERM
+	 */
+
+	buf = 0x40;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (!err) {
+		log_err("Unexpected success from getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	/* Detach child program and make sure we still get EPERM:
+	 * - kernel: -> 0x40
+	 * - parent: unexpected 0x40, EPERM
+	 */
+
+	bpf_link__destroy(link_child);
+	link_child = NULL;
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (!err) {
+		log_err("Unexpected success from getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	/* Set initial value to the one the parent program expects:
+	 * - kernel:      -> 0x90
+	 * - parent: 0x90 -> 0xA0
+	 */
+
+	buf = 0x90;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0xA0) {
+		log_err("Unexpected getsockopt 0x%x != 0xA0", buf);
+		err = -1;
+		goto detach;
+	}
+
+detach:
+	bpf_link__destroy(link_child);
+	bpf_link__destroy(link_parent);
+
+	return err;
+}
+
+static int run_setsockopt_test(struct sockopt_multi *obj, int cg_parent,
+			       int cg_child, int sock_fd)
+{
+	struct bpf_link *link_parent = NULL;
+	struct bpf_link *link_child = NULL;
+	socklen_t optlen;
+	__u8 buf;
+	int err;
+
+	/* Set IP_TOS to the expected value (0x80). */
+
+	buf = 0x80;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0x80) {
+		log_err("Unexpected getsockopt 0x%x != 0x80 without BPF", buf);
+		err = -1;
+		goto detach;
+	}
+
+	/* Attach child program and make sure it adds 0x10. */
+
+	link_child = bpf_program__attach_cgroup(obj->progs._setsockopt,
+						cg_child);
+	if (!ASSERT_OK_PTR(link_child, "cg-attach-setsockopt_child"))
+		goto detach;
+
+	buf = 0x80;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0x80 + 0x10) {
+		log_err("Unexpected getsockopt 0x%x != 0x80 + 0x10", buf);
+		err = -1;
+		goto detach;
+	}
+
+	/* Attach parent program and make sure it adds another 0x10. */
+
+	link_parent = bpf_program__attach_cgroup(obj->progs._setsockopt,
+						 cg_parent);
+	if (!ASSERT_OK_PTR(link_parent, "cg-attach-setsockopt_parent"))
+		goto detach;
+
+	buf = 0x80;
+	err = setsockopt(sock_fd, SOL_IP, IP_TOS, &buf, 1);
+	if (err < 0) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	buf = 0x00;
+	optlen = 1;
+	err = getsockopt(sock_fd, SOL_IP, IP_TOS, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto detach;
+	}
+
+	if (buf != 0x80 + 2 * 0x10) {
+		log_err("Unexpected getsockopt 0x%x != 0x80 + 2 * 0x10", buf);
+		err = -1;
+		goto detach;
+	}
+
+detach:
+	bpf_link__destroy(link_child);
+	bpf_link__destroy(link_parent);
+
+	return err;
+}
+
+void test_sockopt_multi(void)
+{
+	int cg_parent = -1, cg_child = -1;
+	struct sockopt_multi *obj = NULL;
+	int sock_fd = -1;
+
+	cg_parent = test__join_cgroup("/parent");
+	if (!ASSERT_GE(cg_parent, 0, "join_cgroup /parent"))
+		goto out;
+
+	cg_child = test__join_cgroup("/parent/child");
+	if (!ASSERT_GE(cg_child, 0, "join_cgroup /parent/child"))
+		goto out;
+
+	obj = sockopt_multi__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "skel-load"))
+		goto out;
+
+	obj->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "socket"))
+		goto out;
+
+	ASSERT_OK(run_getsockopt_test(obj, cg_parent, cg_child, sock_fd), "getsockopt_test");
+	ASSERT_OK(run_setsockopt_test(obj, cg_parent, cg_child, sock_fd), "setsockopt_test");
+
+out:
+	close(sock_fd);
+	sockopt_multi__destroy(obj);
+	close(cg_child);
+	close(cg_parent);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_qos_to_cc.c b/tools/testing/selftests/bpf/prog_tests/sockopt_qos_to_cc.c
new file mode 100644
index 000000000000..6b2d300e9fd4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt_qos_to_cc.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include <netinet/tcp.h>
+#include "sockopt_qos_to_cc.skel.h"
+
+static void run_setsockopt_test(int cg_fd, int sock_fd)
+{
+	socklen_t optlen;
+	char cc[16]; /* TCP_CA_NAME_MAX */
+	int buf;
+	int err = -1;
+
+	buf = 0x2D;
+	err = setsockopt(sock_fd, SOL_IPV6, IPV6_TCLASS, &buf, sizeof(buf));
+	if (!ASSERT_OK(err, "setsockopt(sock_fd, IPV6_TCLASS)"))
+		return;
+
+	/* Verify the setsockopt cc change */
+	optlen = sizeof(cc);
+	err = getsockopt(sock_fd, SOL_TCP, TCP_CONGESTION, cc, &optlen);
+	if (!ASSERT_OK(err, "getsockopt(sock_fd, TCP_CONGESTION)"))
+		return;
+
+	if (!ASSERT_STREQ(cc, "reno", "getsockopt(sock_fd, TCP_CONGESTION)"))
+		return;
+}
+
+void test_sockopt_qos_to_cc(void)
+{
+	struct sockopt_qos_to_cc *skel;
+	char cc_cubic[16] = "cubic"; /* TCP_CA_NAME_MAX */
+	int cg_fd = -1;
+	int sock_fd = -1;
+	int err;
+
+	cg_fd = test__join_cgroup("/sockopt_qos_to_cc");
+	if (!ASSERT_GE(cg_fd, 0, "cg-join(sockopt_qos_to_cc)"))
+		return;
+
+	skel = sockopt_qos_to_cc__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto done;
+
+	skel->bss->page_size = sysconf(_SC_PAGESIZE);
+
+	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(sock_fd, 0, "v6 socket open"))
+		goto done;
+
+	err = setsockopt(sock_fd, SOL_TCP, TCP_CONGESTION, &cc_cubic,
+			 sizeof(cc_cubic));
+	if (!ASSERT_OK(err, "setsockopt(sock_fd, TCP_CONGESTION)"))
+		goto done;
+
+	skel->links.sockopt_qos_to_cc =
+		bpf_program__attach_cgroup(skel->progs.sockopt_qos_to_cc,
+					   cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.sockopt_qos_to_cc,
+			   "prog_attach(sockopt_qos_to_cc)"))
+		goto done;
+
+	run_setsockopt_test(cg_fd, sock_fd);
+
+done:
+	if (sock_fd != -1)
+		close(sock_fd);
+	if (cg_fd != -1)
+		close(cg_fd);
+	/* destroy can take null and error pointer */
+	sockopt_qos_to_cc__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c
new file mode 100644
index 000000000000..ba6b3ec1156a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+
+#include <netinet/tcp.h>
+#include <linux/netlink.h>
+#include "sockopt_sk.skel.h"
+
+#ifndef SOL_TCP
+#define SOL_TCP IPPROTO_TCP
+#endif
+
+#define SOL_CUSTOM			0xdeadbeef
+
+static int getsetsockopt(void)
+{
+	int fd, err;
+	union {
+		char u8[4];
+		__u32 u32;
+		char cc[16]; /* TCP_CA_NAME_MAX */
+		struct tcp_zerocopy_receive zc;
+	} buf = {};
+	socklen_t optlen;
+	char *big_buf = NULL;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (fd < 0) {
+		log_err("Failed to create socket");
+		return -1;
+	}
+
+	/* IP_TOS - BPF bypass */
+
+	optlen = getpagesize() * 2;
+	big_buf = calloc(1, optlen);
+	if (!big_buf) {
+		log_err("Couldn't allocate two pages");
+		goto err;
+	}
+
+	*(int *)big_buf = 0x08;
+	err = setsockopt(fd, SOL_IP, IP_TOS, big_buf, optlen);
+	if (err) {
+		log_err("Failed to call setsockopt(IP_TOS)");
+		goto err;
+	}
+
+	memset(big_buf, 0, optlen);
+	optlen = 1;
+	err = getsockopt(fd, SOL_IP, IP_TOS, big_buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(IP_TOS)");
+		goto err;
+	}
+
+	if (*big_buf != 0x08) {
+		log_err("Unexpected getsockopt(IP_TOS) optval 0x%x != 0x08",
+			(int)*big_buf);
+		goto err;
+	}
+
+	/* IP_TTL - EPERM */
+
+	buf.u8[0] = 1;
+	err = setsockopt(fd, SOL_IP, IP_TTL, &buf, 1);
+	if (!err || errno != EPERM) {
+		log_err("Unexpected success from setsockopt(IP_TTL)");
+		goto err;
+	}
+
+	/* SOL_CUSTOM - handled by BPF */
+
+	buf.u8[0] = 0x01;
+	err = setsockopt(fd, SOL_CUSTOM, 0, &buf, 1);
+	if (err) {
+		log_err("Failed to call setsockopt");
+		goto err;
+	}
+
+	buf.u32 = 0x00;
+	optlen = 4;
+	err = getsockopt(fd, SOL_CUSTOM, 0, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt");
+		goto err;
+	}
+
+	if (optlen != 1) {
+		log_err("Unexpected optlen %d != 1", optlen);
+		goto err;
+	}
+	if (buf.u8[0] != 0x01) {
+		log_err("Unexpected buf[0] 0x%02x != 0x01", buf.u8[0]);
+		goto err;
+	}
+
+	/* IP_FREEBIND - BPF can't access optval past PAGE_SIZE */
+
+	optlen = getpagesize() * 2;
+	memset(big_buf, 0, optlen);
+
+	err = setsockopt(fd, SOL_IP, IP_FREEBIND, big_buf, optlen);
+	if (err != 0) {
+		log_err("Failed to call setsockopt, ret=%d", err);
+		goto err;
+	}
+
+	err = getsockopt(fd, SOL_IP, IP_FREEBIND, big_buf, &optlen);
+	if (err != 0) {
+		log_err("Failed to call getsockopt, ret=%d", err);
+		goto err;
+	}
+
+	if (optlen != 1 || *(__u8 *)big_buf != 0x55) {
+		log_err("Unexpected IP_FREEBIND getsockopt, optlen=%d, optval=0x%x",
+			optlen, *(__u8 *)big_buf);
+	}
+
+	/* SO_SNDBUF is overwritten */
+
+	buf.u32 = 0x01010101;
+	err = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &buf, 4);
+	if (err) {
+		log_err("Failed to call setsockopt(SO_SNDBUF)");
+		goto err;
+	}
+
+	buf.u32 = 0x00;
+	optlen = 4;
+	err = getsockopt(fd, SOL_SOCKET, SO_SNDBUF, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(SO_SNDBUF)");
+		goto err;
+	}
+
+	if (buf.u32 != 0x55AA*2) {
+		log_err("Unexpected getsockopt(SO_SNDBUF) 0x%x != 0x55AA*2",
+			buf.u32);
+		goto err;
+	}
+
+	/* TCP_CONGESTION can extend the string */
+
+	strcpy(buf.cc, "nv");
+	err = setsockopt(fd, SOL_TCP, TCP_CONGESTION, &buf, strlen("nv"));
+	if (err) {
+		log_err("Failed to call setsockopt(TCP_CONGESTION)");
+		goto err;
+	}
+
+
+	optlen = sizeof(buf.cc);
+	err = getsockopt(fd, SOL_TCP, TCP_CONGESTION, &buf, &optlen);
+	if (err) {
+		log_err("Failed to call getsockopt(TCP_CONGESTION)");
+		goto err;
+	}
+
+	if (strcmp(buf.cc, "cubic") != 0) {
+		log_err("Unexpected getsockopt(TCP_CONGESTION) %s != %s",
+			buf.cc, "cubic");
+		goto err;
+	}
+
+	/* TCP_ZEROCOPY_RECEIVE triggers */
+	memset(&buf, 0, sizeof(buf));
+	optlen = sizeof(buf.zc);
+	err = getsockopt(fd, SOL_TCP, TCP_ZEROCOPY_RECEIVE, &buf, &optlen);
+	if (err) {
+		log_err("Unexpected getsockopt(TCP_ZEROCOPY_RECEIVE) err=%d errno=%d",
+			err, errno);
+		goto err;
+	}
+
+	memset(&buf, 0, sizeof(buf));
+	buf.zc.address = 12345; /* Not page aligned. Rejected by tcp_zerocopy_receive() */
+	optlen = sizeof(buf.zc);
+	errno = 0;
+	err = getsockopt(fd, SOL_TCP, TCP_ZEROCOPY_RECEIVE, &buf, &optlen);
+	if (errno != EINVAL) {
+		log_err("Unexpected getsockopt(TCP_ZEROCOPY_RECEIVE) err=%d errno=%d",
+			err, errno);
+		goto err;
+	}
+
+	/* optval=NULL case is handled correctly */
+
+	close(fd);
+	fd = socket(AF_NETLINK, SOCK_RAW, 0);
+	if (fd < 0) {
+		log_err("Failed to create AF_NETLINK socket");
+		return -1;
+	}
+
+	buf.u32 = 1;
+	optlen = sizeof(__u32);
+	err = setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &buf, optlen);
+	if (err) {
+		log_err("Unexpected getsockopt(NETLINK_ADD_MEMBERSHIP) err=%d errno=%d",
+			err, errno);
+		goto err;
+	}
+
+	optlen = 0;
+	err = getsockopt(fd, SOL_NETLINK, NETLINK_LIST_MEMBERSHIPS, NULL, &optlen);
+	if (err) {
+		log_err("Unexpected getsockopt(NETLINK_LIST_MEMBERSHIPS) err=%d errno=%d",
+			err, errno);
+		goto err;
+	}
+	ASSERT_EQ(optlen, 8, "Unexpected NETLINK_LIST_MEMBERSHIPS value");
+
+	free(big_buf);
+	close(fd);
+	return 0;
+err:
+	free(big_buf);
+	close(fd);
+	return -1;
+}
+
+static void run_test(int cgroup_fd)
+{
+	struct sockopt_sk *skel;
+
+	skel = sockopt_sk__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	skel->bss->page_size = getpagesize();
+
+	skel->links._setsockopt =
+		bpf_program__attach_cgroup(skel->progs._setsockopt, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links._setsockopt, "setsockopt_link"))
+		goto cleanup;
+
+	skel->links._getsockopt =
+		bpf_program__attach_cgroup(skel->progs._getsockopt, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links._getsockopt, "getsockopt_link"))
+		goto cleanup;
+
+	ASSERT_OK(getsetsockopt(), "getsetsockopt");
+
+cleanup:
+	sockopt_sk__destroy(skel);
+}
+
+void test_sockopt_sk(void)
+{
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/sockopt_sk");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /sockopt_sk"))
+		return;
+
+	run_test(cgroup_fd);
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/spin_lock.c b/tools/testing/selftests/bpf/prog_tests/spin_lock.c
new file mode 100644
index 000000000000..254fbfeab06a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/spin_lock.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <regex.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "test_spin_lock.skel.h"
+#include "test_spin_lock_fail.skel.h"
+
+static char log_buf[1024 * 1024];
+
+static struct {
+	const char *prog_name;
+	const char *err_msg;
+} spin_lock_fail_tests[] = {
+	{ "lock_id_kptr_preserve",
+	  "5: (bf) r1 = r0                       ; R0=ptr_foo(id=2,ref_obj_id=2) "
+	  "R1=ptr_foo(id=2,ref_obj_id=2) refs=2\n6: (85) call bpf_this_cpu_ptr#154\n"
+	  "R1 type=ptr_ expected=percpu_ptr_" },
+	{ "lock_id_global_zero",
+	  "; R1=map_value(map=.data.A,ks=4,vs=4)\n2: (85) call bpf_this_cpu_ptr#154\n"
+	  "R1 type=map_value expected=percpu_ptr_" },
+	{ "lock_id_mapval_preserve",
+	  "[0-9]\\+: (bf) r1 = r0                       ;"
+	  " R0=map_value(id=1,map=array_map,ks=4,vs=8)"
+	  " R1=map_value(id=1,map=array_map,ks=4,vs=8)\n"
+	  "[0-9]\\+: (85) call bpf_this_cpu_ptr#154\n"
+	  "R1 type=map_value expected=percpu_ptr_" },
+	{ "lock_id_innermapval_preserve",
+	  "[0-9]\\+: (bf) r1 = r0                      ;"
+	  " R0=map_value(id=2,ks=4,vs=8)"
+	  " R1=map_value(id=2,ks=4,vs=8)\n"
+	  "[0-9]\\+: (85) call bpf_this_cpu_ptr#154\n"
+	  "R1 type=map_value expected=percpu_ptr_" },
+	{ "lock_id_mismatch_kptr_kptr", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_kptr_global", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_kptr_mapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_kptr_innermapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_global_global", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_global_kptr", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_global_mapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_global_innermapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_mapval_mapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_mapval_kptr", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_mapval_global", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_mapval_innermapval", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_innermapval_innermapval1", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_innermapval_innermapval2", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_innermapval_kptr", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_innermapval_global", "bpf_spin_unlock of different lock" },
+	{ "lock_id_mismatch_innermapval_mapval", "bpf_spin_unlock of different lock" },
+	{ "lock_global_subprog_call1", "global function calls are not allowed while holding a lock" },
+	{ "lock_global_subprog_call2", "global function calls are not allowed while holding a lock" },
+	{ "lock_global_sleepable_helper_subprog", "global function calls are not allowed while holding a lock" },
+	{ "lock_global_sleepable_kfunc_subprog", "global function calls are not allowed while holding a lock" },
+	{ "lock_global_sleepable_subprog_indirect", "global function calls are not allowed while holding a lock" },
+};
+
+static int match_regex(const char *pattern, const char *string)
+{
+	int err, rc;
+	regex_t re;
+
+	err = regcomp(&re, pattern, REG_NOSUB);
+	if (err) {
+		char errbuf[512];
+
+		regerror(err, &re, errbuf, sizeof(errbuf));
+		PRINT_FAIL("Can't compile regex: %s\n", errbuf);
+		return -1;
+	}
+	rc = regexec(&re, string, 0, NULL, 0);
+	regfree(&re);
+	return rc == 0 ? 1 : 0;
+}
+
+static void test_spin_lock_fail_prog(const char *prog_name, const char *err_msg)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf,
+						.kernel_log_size = sizeof(log_buf),
+						.kernel_log_level = 1);
+	struct test_spin_lock_fail *skel;
+	struct bpf_program *prog;
+	int ret;
+
+	skel = test_spin_lock_fail__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "test_spin_lock_fail__open_opts"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto end;
+
+	bpf_program__set_autoload(prog, true);
+
+	ret = test_spin_lock_fail__load(skel);
+	if (!ASSERT_ERR(ret, "test_spin_lock_fail__load must fail"))
+		goto end;
+
+	/* Skip check if JIT does not support kfuncs */
+	if (strstr(log_buf, "JIT does not support calling kernel function")) {
+		test__skip();
+		goto end;
+	}
+
+	ret = match_regex(err_msg, log_buf);
+	if (!ASSERT_GE(ret, 0, "match_regex"))
+		goto end;
+
+	if (!ASSERT_TRUE(ret, "no match for expected error message")) {
+		fprintf(stderr, "Expected: %s\n", err_msg);
+		fprintf(stderr, "Verifier: %s\n", log_buf);
+	}
+
+end:
+	test_spin_lock_fail__destroy(skel);
+}
+
+static void *spin_lock_thread(void *arg)
+{
+	int err, prog_fd = *(u32 *) arg;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 10000,
+	);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_OK(topts.retval, "test_run retval");
+	pthread_exit(arg);
+}
+
+void test_spin_lock_success(void)
+{
+	struct test_spin_lock *skel;
+	pthread_t thread_id[4];
+	int prog_fd, i;
+	void *ret;
+
+	skel = test_spin_lock__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_spin_lock__open_and_load"))
+		return;
+	prog_fd = bpf_program__fd(skel->progs.bpf_spin_lock_test);
+	for (i = 0; i < 4; i++) {
+		int err;
+
+		err = pthread_create(&thread_id[i], NULL, &spin_lock_thread, &prog_fd);
+		if (!ASSERT_OK(err, "pthread_create"))
+			goto end;
+	}
+
+	for (i = 0; i < 4; i++) {
+		if (!ASSERT_OK(pthread_join(thread_id[i], &ret), "pthread_join"))
+			goto end;
+		if (!ASSERT_EQ(ret, &prog_fd, "ret == prog_fd"))
+			goto end;
+	}
+end:
+	test_spin_lock__destroy(skel);
+}
+
+void test_spin_lock(void)
+{
+	int i;
+
+	test_spin_lock_success();
+
+	for (i = 0; i < ARRAY_SIZE(spin_lock_fail_tests); i++) {
+		if (!test__start_subtest(spin_lock_fail_tests[i].prog_name))
+			continue;
+		test_spin_lock_fail_prog(spin_lock_fail_tests[i].prog_name,
+					 spin_lock_fail_tests[i].err_msg);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stack_var_off.c b/tools/testing/selftests/bpf/prog_tests/stack_var_off.c
new file mode 100644
index 000000000000..2ce9deefa59c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stack_var_off.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_stack_var_off.skel.h"
+
+/* Test read and writes to the stack performed with offsets that are not
+ * statically known.
+ */
+void test_stack_var_off(void)
+{
+	int duration = 0;
+	struct test_stack_var_off *skel;
+
+	skel = test_stack_var_off__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+
+	/* Give pid to bpf prog so it doesn't trigger for anyone else. */
+	skel->bss->test_pid = getpid();
+	/* Initialize the probe's input. */
+	skel->bss->input[0] = 2;
+	skel->bss->input[1] = 42;  /* This will be returned in probe_res. */
+
+	if (!ASSERT_OK(test_stack_var_off__attach(skel), "skel_attach"))
+		goto cleanup;
+
+	/* Trigger probe. */
+	usleep(1);
+
+	if (CHECK(skel->bss->probe_res != 42, "check_probe_res",
+		  "wrong probe res: %d\n", skel->bss->probe_res))
+		goto cleanup;
+
+cleanup:
+	test_stack_var_off__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
new file mode 100644
index 000000000000..271b5cc9fc01
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_stacktrace_build_id.skel.h"
+
+void test_stacktrace_build_id(void)
+{
+
+	int control_map_fd, stackid_hmap_fd, stackmap_fd, stack_amap_fd;
+	struct test_stacktrace_build_id *skel;
+	int err, stack_trace_len, build_id_size;
+	__u32 key, prev_key, val, duration = 0;
+	char buf[BPF_BUILD_ID_SIZE];
+	struct bpf_stack_build_id id_offs[PERF_MAX_STACK_DEPTH];
+	int build_id_matches = 0;
+	int i, retry = 1;
+
+retry:
+	skel = test_stacktrace_build_id__open_and_load();
+	if (CHECK(!skel, "skel_open_and_load", "skeleton open/load failed\n"))
+		return;
+
+	err = test_stacktrace_build_id__attach(skel);
+	if (CHECK(err, "attach_tp", "err %d\n", err))
+		goto cleanup;
+
+	/* find map fds */
+	control_map_fd = bpf_map__fd(skel->maps.control_map);
+	stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
+	stackmap_fd = bpf_map__fd(skel->maps.stackmap);
+	stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
+
+	if (CHECK_FAIL(system("dd if=/dev/urandom of=/dev/zero count=4 2> /dev/null")))
+		goto cleanup;
+	if (CHECK_FAIL(system("./urandom_read")))
+		goto cleanup;
+	/* disable stack trace collection */
+	key = 0;
+	val = 1;
+	bpf_map_update_elem(control_map_fd, &key, &val, 0);
+
+	/* for every element in stackid_hmap, we can find a corresponding one
+	 * in stackmap, and vice versa.
+	 */
+	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
+	if (CHECK(err, "compare_map_keys stackid_hmap vs. stackmap",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
+	if (CHECK(err, "compare_map_keys stackmap vs. stackid_hmap",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	build_id_size = read_build_id("urandom_read", buf, sizeof(buf));
+	err = build_id_size < 0 ? build_id_size : 0;
+
+	if (CHECK(err, "read_build_id",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	err = bpf_map__get_next_key(skel->maps.stackmap, NULL, &key, sizeof(key));
+	if (CHECK(err, "get_next_key from stackmap",
+		  "err %d, errno %d\n", err, errno))
+		goto cleanup;
+
+	do {
+		err = bpf_map_lookup_elem(stackmap_fd, &key, id_offs);
+		if (CHECK(err, "lookup_elem from stackmap",
+			  "err %d, errno %d\n", err, errno))
+			goto cleanup;
+		for (i = 0; i < PERF_MAX_STACK_DEPTH; ++i)
+			if (id_offs[i].status == BPF_STACK_BUILD_ID_VALID &&
+			    id_offs[i].offset != 0) {
+				if (memcmp(buf, id_offs[i].build_id, build_id_size) == 0)
+					build_id_matches = 1;
+			}
+		prev_key = key;
+	} while (bpf_map__get_next_key(skel->maps.stackmap, &prev_key, &key, sizeof(key)) == 0);
+
+	/* stack_map_get_build_id_offset() is racy and sometimes can return
+	 * BPF_STACK_BUILD_ID_IP instead of BPF_STACK_BUILD_ID_VALID;
+	 * try it one more time.
+	 */
+	if (build_id_matches < 1 && retry--) {
+		test_stacktrace_build_id__destroy(skel);
+		printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
+		       __func__);
+		goto retry;
+	}
+
+	if (CHECK(build_id_matches < 1, "build id match",
+		  "Didn't find expected build ID from the map\n"))
+		goto cleanup;
+
+	stack_trace_len = PERF_MAX_STACK_DEPTH *
+			  sizeof(struct bpf_stack_build_id);
+	err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
+	CHECK(err, "compare_stack_ips stackmap vs. stack_amap",
+	      "err %d errno %d\n", err, errno);
+
+cleanup:
+	test_stacktrace_build_id__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
new file mode 100644
index 000000000000..b277dddd5af7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_build_id_nmi.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_stacktrace_build_id.skel.h"
+
+void test_stacktrace_build_id_nmi(void)
+{
+	int control_map_fd, stackid_hmap_fd, stackmap_fd;
+	struct test_stacktrace_build_id *skel;
+	int err, pmu_fd;
+	struct perf_event_attr attr = {
+		.freq = 1,
+		.type = PERF_TYPE_HARDWARE,
+		.config = PERF_COUNT_HW_CPU_CYCLES,
+	};
+	__u32 key, prev_key, val, duration = 0;
+	char buf[BPF_BUILD_ID_SIZE];
+	struct bpf_stack_build_id id_offs[PERF_MAX_STACK_DEPTH];
+	int build_id_matches = 0, build_id_size;
+	int i, retry = 1;
+
+	attr.sample_freq = read_perf_max_sample_freq();
+
+retry:
+	skel = test_stacktrace_build_id__open();
+	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		return;
+
+	/* override program type */
+	bpf_program__set_type(skel->progs.oncpu, BPF_PROG_TYPE_PERF_EVENT);
+
+	err = test_stacktrace_build_id__load(skel);
+	if (CHECK(err, "skel_load", "skeleton load failed: %d\n", err))
+		goto cleanup;
+
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+	if (pmu_fd < 0 && (errno == ENOENT || errno == EOPNOTSUPP)) {
+		printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__);
+		test__skip();
+		goto cleanup;
+	}
+	if (CHECK(pmu_fd < 0, "perf_event_open", "err %d errno %d\n",
+		  pmu_fd, errno))
+		goto cleanup;
+
+	skel->links.oncpu = bpf_program__attach_perf_event(skel->progs.oncpu,
+							   pmu_fd);
+	if (!ASSERT_OK_PTR(skel->links.oncpu, "attach_perf_event")) {
+		close(pmu_fd);
+		goto cleanup;
+	}
+
+	/* find map fds */
+	control_map_fd = bpf_map__fd(skel->maps.control_map);
+	stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
+	stackmap_fd = bpf_map__fd(skel->maps.stackmap);
+
+	if (CHECK_FAIL(system("dd if=/dev/urandom of=/dev/zero count=4 2> /dev/null")))
+		goto cleanup;
+	if (CHECK_FAIL(system("taskset 0x1 ./urandom_read 100000")))
+		goto cleanup;
+	/* disable stack trace collection */
+	key = 0;
+	val = 1;
+	bpf_map_update_elem(control_map_fd, &key, &val, 0);
+
+	/* for every element in stackid_hmap, we can find a corresponding one
+	 * in stackmap, and vice versa.
+	 */
+	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
+	if (CHECK(err, "compare_map_keys stackid_hmap vs. stackmap",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
+	if (CHECK(err, "compare_map_keys stackmap vs. stackid_hmap",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	build_id_size = read_build_id("urandom_read", buf, sizeof(buf));
+	err = build_id_size < 0 ? build_id_size : 0;
+
+	if (CHECK(err, "get build_id with readelf",
+		  "err %d errno %d\n", err, errno))
+		goto cleanup;
+
+	err = bpf_map__get_next_key(skel->maps.stackmap, NULL, &key, sizeof(key));
+	if (CHECK(err, "get_next_key from stackmap",
+		  "err %d, errno %d\n", err, errno))
+		goto cleanup;
+
+	do {
+		err = bpf_map__lookup_elem(skel->maps.stackmap, &key, sizeof(key),
+					   id_offs, sizeof(id_offs), 0);
+		if (CHECK(err, "lookup_elem from stackmap",
+			  "err %d, errno %d\n", err, errno))
+			goto cleanup;
+		for (i = 0; i < PERF_MAX_STACK_DEPTH; ++i)
+			if (id_offs[i].status == BPF_STACK_BUILD_ID_VALID &&
+			    id_offs[i].offset != 0) {
+				if (memcmp(buf, id_offs[i].build_id, build_id_size) == 0)
+					build_id_matches = 1;
+			}
+		prev_key = key;
+	} while (bpf_map__get_next_key(skel->maps.stackmap, &prev_key, &key, sizeof(key)) == 0);
+
+	/* stack_map_get_build_id_offset() is racy and sometimes can return
+	 * BPF_STACK_BUILD_ID_IP instead of BPF_STACK_BUILD_ID_VALID;
+	 * try it one more time.
+	 */
+	if (build_id_matches < 1 && retry--) {
+		test_stacktrace_build_id__destroy(skel);
+		printf("%s:WARN:Didn't find expected build ID from the map, retrying\n",
+		       __func__);
+		goto retry;
+	}
+
+	if (CHECK(build_id_matches < 1, "build id match",
+		  "Didn't find expected build ID from the map\n"))
+		goto cleanup;
+
+	/*
+	 * We intentionally skip compare_stack_ips(). This is because we
+	 * only support one in_nmi() ips-to-build_id translation per cpu
+	 * at any time, thus stack_amap here will always fallback to
+	 * BPF_STACK_BUILD_ID_IP;
+	 */
+
+cleanup:
+	test_stacktrace_build_id__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c
new file mode 100644
index 000000000000..c9efdd2a5b18
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "stacktrace_ips.skel.h"
+
+#ifdef __x86_64__
+static int check_stacktrace_ips(int fd, __u32 key, int cnt, ...)
+{
+	__u64 ips[PERF_MAX_STACK_DEPTH];
+	struct ksyms *ksyms = NULL;
+	int i, err = 0;
+	va_list args;
+
+	/* sorted by addr */
+	ksyms = load_kallsyms_local();
+	if (!ASSERT_OK_PTR(ksyms, "load_kallsyms_local"))
+		return -1;
+
+	/* unlikely, but... */
+	if (!ASSERT_LT(cnt, PERF_MAX_STACK_DEPTH, "check_max"))
+		return -1;
+
+	err = bpf_map_lookup_elem(fd, &key, ips);
+	if (err)
+		goto out;
+
+	/*
+	 * Compare all symbols provided via arguments with stacktrace ips,
+	 * and their related symbol addresses.t
+	 */
+	va_start(args, cnt);
+
+	for (i = 0; i < cnt; i++) {
+		unsigned long val;
+		struct ksym *ksym;
+
+		val = va_arg(args, unsigned long);
+		ksym = ksym_search_local(ksyms, ips[i]);
+		if (!ASSERT_OK_PTR(ksym, "ksym_search_local"))
+			break;
+		ASSERT_EQ(ksym->addr, val, "stack_cmp");
+	}
+
+	va_end(args);
+
+out:
+	free_kallsyms_local(ksyms);
+	return err;
+}
+
+static void test_stacktrace_ips_kprobe_multi(bool retprobe)
+{
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts,
+		.retprobe = retprobe
+	);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct stacktrace_ips *skel;
+
+	skel = stacktrace_ips__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "stacktrace_ips__open_and_load"))
+		return;
+
+	if (!skel->kconfig->CONFIG_UNWINDER_ORC) {
+		test__skip();
+		goto cleanup;
+	}
+
+	skel->links.kprobe_multi_test = bpf_program__attach_kprobe_multi_opts(
+							skel->progs.kprobe_multi_test,
+							"bpf_testmod_stacktrace_test", &opts);
+	if (!ASSERT_OK_PTR(skel->links.kprobe_multi_test, "bpf_program__attach_kprobe_multi_opts"))
+		goto cleanup;
+
+	trigger_module_test_read(1);
+
+	load_kallsyms();
+
+	check_stacktrace_ips(bpf_map__fd(skel->maps.stackmap), skel->bss->stack_key, 4,
+			     ksym_get_addr("bpf_testmod_stacktrace_test_3"),
+			     ksym_get_addr("bpf_testmod_stacktrace_test_2"),
+			     ksym_get_addr("bpf_testmod_stacktrace_test_1"),
+			     ksym_get_addr("bpf_testmod_test_read"));
+
+cleanup:
+	stacktrace_ips__destroy(skel);
+}
+
+static void test_stacktrace_ips_raw_tp(void)
+{
+	__u32 info_len = sizeof(struct bpf_prog_info);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct bpf_prog_info info = {};
+	struct stacktrace_ips *skel;
+	__u64 bpf_prog_ksym = 0;
+	int err;
+
+	skel = stacktrace_ips__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "stacktrace_ips__open_and_load"))
+		return;
+
+	if (!skel->kconfig->CONFIG_UNWINDER_ORC) {
+		test__skip();
+		goto cleanup;
+	}
+
+	skel->links.rawtp_test = bpf_program__attach_raw_tracepoint(
+							skel->progs.rawtp_test,
+							"bpf_testmod_test_read");
+	if (!ASSERT_OK_PTR(skel->links.rawtp_test, "bpf_program__attach_raw_tracepoint"))
+		goto cleanup;
+
+	/* get bpf program address */
+	info.jited_ksyms = ptr_to_u64(&bpf_prog_ksym);
+	info.nr_jited_ksyms = 1;
+	err = bpf_prog_get_info_by_fd(bpf_program__fd(skel->progs.rawtp_test),
+				      &info, &info_len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto cleanup;
+
+	trigger_module_test_read(1);
+
+	load_kallsyms();
+
+	check_stacktrace_ips(bpf_map__fd(skel->maps.stackmap), skel->bss->stack_key, 2,
+			     bpf_prog_ksym,
+			     ksym_get_addr("bpf_trace_run2"));
+
+cleanup:
+	stacktrace_ips__destroy(skel);
+}
+
+static void __test_stacktrace_ips(void)
+{
+	if (test__start_subtest("kprobe_multi"))
+		test_stacktrace_ips_kprobe_multi(false);
+	if (test__start_subtest("kretprobe_multi"))
+		test_stacktrace_ips_kprobe_multi(true);
+	if (test__start_subtest("raw_tp"))
+		test_stacktrace_ips_raw_tp();
+}
+#else
+static void __test_stacktrace_ips(void)
+{
+	test__skip();
+}
+#endif
+
+void test_stacktrace_ips(void)
+{
+	__test_stacktrace_ips();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
new file mode 100644
index 000000000000..c23b97414813
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "stacktrace_map.skel.h"
+
+void test_stacktrace_map(void)
+{
+	struct stacktrace_map *skel;
+	int control_map_fd, stackid_hmap_fd, stackmap_fd, stack_amap_fd;
+	int err, stack_trace_len;
+	__u32 key, val, stack_id, duration = 0;
+	__u64 stack[PERF_MAX_STACK_DEPTH];
+
+	skel = stacktrace_map__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	control_map_fd = bpf_map__fd(skel->maps.control_map);
+	stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
+	stackmap_fd = bpf_map__fd(skel->maps.stackmap);
+	stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
+
+	err = stacktrace_map__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+	/* give some time for bpf program run */
+	sleep(1);
+
+	/* disable stack trace collection */
+	key = 0;
+	val = 1;
+	bpf_map_update_elem(control_map_fd, &key, &val, 0);
+
+	/* for every element in stackid_hmap, we can find a corresponding one
+	 * in stackmap, and vice versa.
+	 */
+	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
+	if (CHECK(err, "compare_map_keys stackid_hmap vs. stackmap",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
+	if (CHECK(err, "compare_map_keys stackmap vs. stackid_hmap",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	stack_trace_len = PERF_MAX_STACK_DEPTH * sizeof(__u64);
+	err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
+	if (CHECK(err, "compare_stack_ips stackmap vs. stack_amap",
+		  "err %d errno %d\n", err, errno))
+		goto out;
+
+	stack_id = skel->bss->stack_id;
+	err = bpf_map_lookup_and_delete_elem(stackmap_fd, &stack_id,  stack);
+	if (!ASSERT_OK(err, "lookup and delete target stack_id"))
+		goto out;
+
+	err = bpf_map_lookup_elem(stackmap_fd, &stack_id, stack);
+	if (!ASSERT_EQ(err, -ENOENT, "lookup deleted stack_id"))
+		goto out;
+out:
+	stacktrace_map__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c
new file mode 100644
index 000000000000..e985d51d3d47
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_raw_tp.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_stacktrace_map_raw_tp(void)
+{
+	const char *prog_name = "oncpu";
+	int control_map_fd, stackid_hmap_fd, stackmap_fd;
+	const char *file = "./stacktrace_map.bpf.o";
+	__u32 key, val, duration = 0;
+	int err, prog_fd;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	struct bpf_link *link = NULL;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+	if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, prog_name);
+	if (CHECK(!prog, "find_prog", "prog '%s' not found\n", prog_name))
+		goto close_prog;
+
+	link = bpf_program__attach_raw_tracepoint(prog, "sched_switch");
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
+		goto close_prog;
+
+	/* find map fds */
+	control_map_fd = bpf_find_map(__func__, obj, "control_map");
+	if (CHECK_FAIL(control_map_fd < 0))
+		goto close_prog;
+
+	stackid_hmap_fd = bpf_find_map(__func__, obj, "stackid_hmap");
+	if (CHECK_FAIL(stackid_hmap_fd < 0))
+		goto close_prog;
+
+	stackmap_fd = bpf_find_map(__func__, obj, "stackmap");
+	if (CHECK_FAIL(stackmap_fd < 0))
+		goto close_prog;
+
+	/* give some time for bpf program run */
+	sleep(1);
+
+	/* disable stack trace collection */
+	key = 0;
+	val = 1;
+	bpf_map_update_elem(control_map_fd, &key, &val, 0);
+
+	/* for every element in stackid_hmap, we can find a corresponding one
+	 * in stackmap, and vice versa.
+	 */
+	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
+	if (CHECK(err, "compare_map_keys stackid_hmap vs. stackmap",
+		  "err %d errno %d\n", err, errno))
+		goto close_prog;
+
+	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
+	if (CHECK(err, "compare_map_keys stackmap vs. stackid_hmap",
+		  "err %d errno %d\n", err, errno))
+		goto close_prog;
+
+close_prog:
+	bpf_link__destroy(link);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stacktrace_map_skip.c b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_skip.c
new file mode 100644
index 000000000000..dc2ccf6a14d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stacktrace_map_skip.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "stacktrace_map_skip.skel.h"
+
+#define TEST_STACK_DEPTH  2
+
+void test_stacktrace_map_skip(void)
+{
+	struct stacktrace_map_skip *skel;
+	int stackid_hmap_fd, stackmap_fd, stack_amap_fd;
+	int err, stack_trace_len;
+
+	skel = stacktrace_map_skip__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	/* find map fds */
+	stackid_hmap_fd = bpf_map__fd(skel->maps.stackid_hmap);
+	if (!ASSERT_GE(stackid_hmap_fd, 0, "stackid_hmap fd"))
+		goto out;
+
+	stackmap_fd = bpf_map__fd(skel->maps.stackmap);
+	if (!ASSERT_GE(stackmap_fd, 0, "stackmap fd"))
+		goto out;
+
+	stack_amap_fd = bpf_map__fd(skel->maps.stack_amap);
+	if (!ASSERT_GE(stack_amap_fd, 0, "stack_amap fd"))
+		goto out;
+
+	skel->bss->pid = getpid();
+
+	err = stacktrace_map_skip__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	/* give some time for bpf program run */
+	sleep(1);
+
+	/* disable stack trace collection */
+	skel->bss->control = 1;
+
+	/* for every element in stackid_hmap, we can find a corresponding one
+	 * in stackmap, and vice versa.
+	 */
+	err = compare_map_keys(stackid_hmap_fd, stackmap_fd);
+	if (!ASSERT_OK(err, "compare_map_keys stackid_hmap vs. stackmap"))
+		goto out;
+
+	err = compare_map_keys(stackmap_fd, stackid_hmap_fd);
+	if (!ASSERT_OK(err, "compare_map_keys stackmap vs. stackid_hmap"))
+		goto out;
+
+	stack_trace_len = TEST_STACK_DEPTH * sizeof(__u64);
+	err = compare_stack_ips(stackmap_fd, stack_amap_fd, stack_trace_len);
+	if (!ASSERT_OK(err, "compare_stack_ips stackmap vs. stack_amap"))
+		goto out;
+
+	if (!ASSERT_EQ(skel->bss->failed, 0, "skip_failed"))
+		goto out;
+
+out:
+	stacktrace_map_skip__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/static_linked.c b/tools/testing/selftests/bpf/prog_tests/static_linked.c
new file mode 100644
index 000000000000..5c4e3014e063
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/static_linked.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <test_progs.h>
+#include "test_static_linked.skel.h"
+
+void test_static_linked(void)
+{
+	int err;
+	struct test_static_linked* skel;
+
+	skel = test_static_linked__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->rodata->rovar1 = 1;
+	skel->rodata->rovar2 = 4;
+
+	err = test_static_linked__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = test_static_linked__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger */
+	usleep(1);
+
+	ASSERT_EQ(skel->data->var1, 1 * 2 + 2 + 3, "var1");
+	ASSERT_EQ(skel->data->var2, 4 * 3 + 5 + 6, "var2");
+
+cleanup:
+	test_static_linked__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/stream.c b/tools/testing/selftests/bpf/prog_tests/stream.c
new file mode 100644
index 000000000000..c3cce5c292bd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/stream.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <sys/mman.h>
+
+#include "stream.skel.h"
+#include "stream_fail.skel.h"
+
+void test_stream_failure(void)
+{
+	RUN_TESTS(stream_fail);
+}
+
+void test_stream_success(void)
+{
+	RUN_TESTS(stream);
+	return;
+}
+
+void test_stream_syscall(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	LIBBPF_OPTS(bpf_prog_stream_read_opts, ropts);
+	struct stream *skel;
+	int ret, prog_fd;
+	char buf[64];
+
+	skel = stream__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "stream__open_and_load"))
+		return;
+
+	prog_fd = bpf_program__fd(skel->progs.stream_syscall);
+	ret = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_OK(ret, "ret");
+	ASSERT_OK(opts.retval, "retval");
+
+	ASSERT_LT(bpf_prog_stream_read(0, BPF_STREAM_STDOUT, buf, sizeof(buf), &ropts), 0, "error");
+	ret = -errno;
+	ASSERT_EQ(ret, -EINVAL, "bad prog_fd");
+
+	ASSERT_LT(bpf_prog_stream_read(prog_fd, 0, buf, sizeof(buf), &ropts), 0, "error");
+	ret = -errno;
+	ASSERT_EQ(ret, -ENOENT, "bad stream id");
+
+	ASSERT_LT(bpf_prog_stream_read(prog_fd, BPF_STREAM_STDOUT, NULL, sizeof(buf), NULL), 0, "error");
+	ret = -errno;
+	ASSERT_EQ(ret, -EFAULT, "bad stream buf");
+
+	ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDOUT, buf, 2, NULL);
+	ASSERT_EQ(ret, 2, "bytes");
+	ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDOUT, buf, 2, NULL);
+	ASSERT_EQ(ret, 1, "bytes");
+	ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDOUT, buf, 1, &ropts);
+	ASSERT_EQ(ret, 0, "no bytes stdout");
+	ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDERR, buf, 1, &ropts);
+	ASSERT_EQ(ret, 0, "no bytes stderr");
+
+	stream__destroy(skel);
+}
+
+static void test_address(struct bpf_program *prog, unsigned long *fault_addr_p)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	LIBBPF_OPTS(bpf_prog_stream_read_opts, ropts);
+	int ret, prog_fd;
+	char fault_addr[64];
+	char buf[1024];
+
+	prog_fd = bpf_program__fd(prog);
+
+	ret = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_OK(ret, "ret");
+	ASSERT_OK(opts.retval, "retval");
+
+	sprintf(fault_addr, "0x%lx", *fault_addr_p);
+
+	ret = bpf_prog_stream_read(prog_fd, BPF_STREAM_STDERR, buf, sizeof(buf), &ropts);
+	ASSERT_GT(ret, 0, "stream read");
+	ASSERT_LE(ret, 1023, "len for buf");
+	buf[ret] = '\0';
+
+	if (!ASSERT_HAS_SUBSTR(buf, fault_addr, "fault_addr")) {
+		fprintf(stderr, "Output from stream:\n%s\n", buf);
+		fprintf(stderr, "Fault Addr: %s\n", fault_addr);
+	}
+}
+
+void test_stream_arena_fault_address(void)
+{
+	struct stream *skel;
+
+#if !defined(__x86_64__) && !defined(__aarch64__)
+	printf("%s:SKIP: arena fault reporting not supported\n", __func__);
+	test__skip();
+	return;
+#endif
+
+	skel = stream__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "stream__open_and_load"))
+		return;
+
+	if (test__start_subtest("read_fault"))
+		test_address(skel->progs.stream_arena_read_fault, &skel->bss->fault_addr);
+	if (test__start_subtest("write_fault"))
+		test_address(skel->progs.stream_arena_write_fault, &skel->bss->fault_addr);
+
+	stream__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/string_kfuncs.c b/tools/testing/selftests/bpf/prog_tests/string_kfuncs.c
new file mode 100644
index 000000000000..0f3bf594e7a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/string_kfuncs.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Red Hat, Inc.*/
+#include <test_progs.h>
+#include "string_kfuncs_success.skel.h"
+#include "string_kfuncs_failure1.skel.h"
+#include "string_kfuncs_failure2.skel.h"
+#include <sys/mman.h>
+
+static const char * const test_cases[] = {
+	"strcmp",
+	"strcasecmp",
+	"strchr",
+	"strchrnul",
+	"strnchr",
+	"strrchr",
+	"strlen",
+	"strnlen",
+	"strspn_str",
+	"strspn_accept",
+	"strcspn_str",
+	"strcspn_reject",
+	"strstr",
+	"strcasestr",
+	"strnstr",
+	"strncasestr",
+};
+
+void run_too_long_tests(void)
+{
+	struct string_kfuncs_failure2 *skel;
+	struct bpf_program *prog;
+	char test_name[256];
+	int err, i;
+
+	skel = string_kfuncs_failure2__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "string_kfuncs_failure2__open_and_load"))
+		return;
+
+	memset(skel->bss->long_str, 'a', sizeof(skel->bss->long_str));
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		sprintf(test_name, "test_%s_too_long", test_cases[i]);
+		if (!test__start_subtest(test_name))
+			continue;
+
+		prog = bpf_object__find_program_by_name(skel->obj, test_name);
+		if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+			goto cleanup;
+
+		LIBBPF_OPTS(bpf_test_run_opts, topts);
+		err = bpf_prog_test_run_opts(bpf_program__fd(prog), &topts);
+		if (!ASSERT_OK(err, "bpf_prog_test_run"))
+			goto cleanup;
+
+		ASSERT_EQ(topts.retval, -E2BIG, "reading too long string fails with -E2BIG");
+	}
+
+cleanup:
+	string_kfuncs_failure2__destroy(skel);
+}
+
+void test_string_kfuncs(void)
+{
+	RUN_TESTS(string_kfuncs_success);
+	RUN_TESTS(string_kfuncs_failure1);
+
+	run_too_long_tests();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/struct_ops_autocreate.c b/tools/testing/selftests/bpf/prog_tests/struct_ops_autocreate.c
new file mode 100644
index 000000000000..a5cc593c1e1d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/struct_ops_autocreate.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "struct_ops_autocreate.skel.h"
+#include "struct_ops_autocreate2.skel.h"
+
+static void cant_load_full_object(void)
+{
+	struct struct_ops_autocreate *skel;
+	char *log = NULL;
+	int err;
+
+	skel = struct_ops_autocreate__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_autocreate__open"))
+		return;
+
+	if (start_libbpf_log_capture())
+		goto cleanup;
+	/* The testmod_2 map BTF type (struct bpf_testmod_ops___v2) doesn't
+	 * match the BTF of the actual struct bpf_testmod_ops defined in the
+	 * kernel, so we should fail to load it if we don't disable autocreate
+	 * for that map.
+	 */
+	err = struct_ops_autocreate__load(skel);
+	log = stop_libbpf_log_capture();
+	if (!ASSERT_ERR(err, "struct_ops_autocreate__load"))
+		goto cleanup;
+
+	ASSERT_HAS_SUBSTR(log, "libbpf: struct_ops init_kern", "init_kern message");
+	ASSERT_EQ(err, -ENOTSUP, "errno should be ENOTSUP");
+
+cleanup:
+	free(log);
+	struct_ops_autocreate__destroy(skel);
+}
+
+static int check_test_1_link(struct struct_ops_autocreate *skel, struct bpf_map *map)
+{
+	struct bpf_link *link;
+	int err;
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_1);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops"))
+		return -1;
+
+	/* test_1() would be called from bpf_dummy_reg2() in bpf_testmod.c */
+	err = ASSERT_EQ(skel->bss->test_1_result, 42, "test_1_result");
+	bpf_link__destroy(link);
+	return err;
+}
+
+static void can_load_partial_object(void)
+{
+	struct struct_ops_autocreate *skel;
+	int err;
+
+	skel = struct_ops_autocreate__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_autocreate__open_opts"))
+		return;
+
+	err = bpf_map__set_autocreate(skel->maps.testmod_2, false);
+	if (!ASSERT_OK(err, "bpf_map__set_autocreate"))
+		goto cleanup;
+
+	ASSERT_TRUE(bpf_program__autoload(skel->progs.test_1), "test_1 default autoload");
+	ASSERT_TRUE(bpf_program__autoload(skel->progs.test_2), "test_2 default autoload");
+
+	err = struct_ops_autocreate__load(skel);
+	if (ASSERT_OK(err, "struct_ops_autocreate__load"))
+		goto cleanup;
+
+	ASSERT_TRUE(bpf_program__autoload(skel->progs.test_1), "test_1 actual autoload");
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.test_2), "test_2 actual autoload");
+
+	check_test_1_link(skel, skel->maps.testmod_1);
+
+cleanup:
+	struct_ops_autocreate__destroy(skel);
+}
+
+static void optional_maps(void)
+{
+	struct struct_ops_autocreate *skel;
+	int err;
+
+	skel = struct_ops_autocreate__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_autocreate__open"))
+		return;
+
+	ASSERT_TRUE(bpf_map__autocreate(skel->maps.testmod_1), "testmod_1 autocreate");
+	ASSERT_TRUE(bpf_map__autocreate(skel->maps.testmod_2), "testmod_2 autocreate");
+	ASSERT_FALSE(bpf_map__autocreate(skel->maps.optional_map), "optional_map autocreate");
+	ASSERT_FALSE(bpf_map__autocreate(skel->maps.optional_map2), "optional_map2 autocreate");
+
+	err  = bpf_map__set_autocreate(skel->maps.testmod_1, false);
+	err |= bpf_map__set_autocreate(skel->maps.testmod_2, false);
+	err |= bpf_map__set_autocreate(skel->maps.optional_map2, true);
+	if (!ASSERT_OK(err, "bpf_map__set_autocreate"))
+		goto cleanup;
+
+	err = struct_ops_autocreate__load(skel);
+	if (ASSERT_OK(err, "struct_ops_autocreate__load"))
+		goto cleanup;
+
+	check_test_1_link(skel, skel->maps.optional_map2);
+
+cleanup:
+	struct_ops_autocreate__destroy(skel);
+}
+
+/* Swap test_mod1->test_1 program from 'bar' to 'foo' using shadow vars.
+ * test_mod1 load should enable autoload for 'foo'.
+ */
+static void autoload_and_shadow_vars(void)
+{
+	struct struct_ops_autocreate2 *skel = NULL;
+	struct bpf_link *link = NULL;
+	int err;
+
+	skel = struct_ops_autocreate2__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_autocreate__open_opts"))
+		return;
+
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.foo), "foo default autoload");
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.bar), "bar default autoload");
+
+	/* loading map testmod_1 would switch foo's autoload to true */
+	skel->struct_ops.testmod_1->test_1 = skel->progs.foo;
+
+	err = struct_ops_autocreate2__load(skel);
+	if (ASSERT_OK(err, "struct_ops_autocreate__load"))
+		goto cleanup;
+
+	ASSERT_TRUE(bpf_program__autoload(skel->progs.foo), "foo actual autoload");
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.bar), "bar actual autoload");
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_1);
+	if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops"))
+		goto cleanup;
+
+	/* test_1() would be called from bpf_dummy_reg2() in bpf_testmod.c */
+	err = ASSERT_EQ(skel->bss->test_1_result, 42, "test_1_result");
+
+cleanup:
+	bpf_link__destroy(link);
+	struct_ops_autocreate2__destroy(skel);
+}
+
+void test_struct_ops_autocreate(void)
+{
+	if (test__start_subtest("cant_load_full_object"))
+		cant_load_full_object();
+	if (test__start_subtest("can_load_partial_object"))
+		can_load_partial_object();
+	if (test__start_subtest("autoload_and_shadow_vars"))
+		autoload_and_shadow_vars();
+	if (test__start_subtest("optional_maps"))
+		optional_maps();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/struct_ops_private_stack.c b/tools/testing/selftests/bpf/prog_tests/struct_ops_private_stack.c
new file mode 100644
index 000000000000..4006879ca3fe
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/struct_ops_private_stack.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "struct_ops_private_stack.skel.h"
+#include "struct_ops_private_stack_fail.skel.h"
+#include "struct_ops_private_stack_recur.skel.h"
+
+static void test_private_stack(void)
+{
+	struct struct_ops_private_stack *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = struct_ops_private_stack__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_private_stack__open"))
+		return;
+
+	if (skel->data->skip) {
+		test__skip();
+		goto cleanup;
+	}
+
+	err = struct_ops_private_stack__load(skel);
+	if (!ASSERT_OK(err, "struct_ops_private_stack__load"))
+		goto cleanup;
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_1);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
+		goto cleanup;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->val_i, 3, "val_i");
+	ASSERT_EQ(skel->bss->val_j, 8, "val_j");
+
+	bpf_link__destroy(link);
+
+cleanup:
+	struct_ops_private_stack__destroy(skel);
+}
+
+static void test_private_stack_fail(void)
+{
+	struct struct_ops_private_stack_fail *skel;
+	int err;
+
+	skel = struct_ops_private_stack_fail__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_private_stack_fail__open"))
+		return;
+
+	if (skel->data->skip) {
+		test__skip();
+		goto cleanup;
+	}
+
+	err = struct_ops_private_stack_fail__load(skel);
+	if (!ASSERT_ERR(err, "struct_ops_private_stack_fail__load"))
+		goto cleanup;
+	return;
+
+cleanup:
+	struct_ops_private_stack_fail__destroy(skel);
+}
+
+static void test_private_stack_recur(void)
+{
+	struct struct_ops_private_stack_recur *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = struct_ops_private_stack_recur__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_private_stack_recur__open"))
+		return;
+
+	if (skel->data->skip) {
+		test__skip();
+		goto cleanup;
+	}
+
+	err = struct_ops_private_stack_recur__load(skel);
+	if (!ASSERT_OK(err, "struct_ops_private_stack_recur__load"))
+		goto cleanup;
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_1);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
+		goto cleanup;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->val_j, 3, "val_j");
+
+	bpf_link__destroy(link);
+
+cleanup:
+	struct_ops_private_stack_recur__destroy(skel);
+}
+
+void test_struct_ops_private_stack(void)
+{
+	if (test__start_subtest("private_stack"))
+		test_private_stack();
+	if (test__start_subtest("private_stack_fail"))
+		test_private_stack_fail();
+	if (test__start_subtest("private_stack_recur"))
+		test_private_stack_recur();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/subprogs.c b/tools/testing/selftests/bpf/prog_tests/subprogs.c
new file mode 100644
index 000000000000..903f35a9e62e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/subprogs.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include "test_subprogs.skel.h"
+#include "test_subprogs_unused.skel.h"
+
+struct toggler_ctx {
+	int fd;
+	bool stop;
+};
+
+static void *toggle_jit_harden(void *arg)
+{
+	struct toggler_ctx *ctx = arg;
+	char two = '2';
+	char zero = '0';
+
+	while (!ctx->stop) {
+		lseek(ctx->fd, SEEK_SET, 0);
+		write(ctx->fd, &two, sizeof(two));
+		lseek(ctx->fd, SEEK_SET, 0);
+		write(ctx->fd, &zero, sizeof(zero));
+	}
+
+	return NULL;
+}
+
+static void test_subprogs_with_jit_harden_toggling(void)
+{
+	struct toggler_ctx ctx;
+	pthread_t toggler;
+	int err;
+	unsigned int i, loop = 10;
+
+	ctx.fd = open("/proc/sys/net/core/bpf_jit_harden", O_RDWR);
+	if (!ASSERT_GE(ctx.fd, 0, "open bpf_jit_harden"))
+		return;
+
+	ctx.stop = false;
+	err = pthread_create(&toggler, NULL, toggle_jit_harden, &ctx);
+	if (!ASSERT_OK(err, "new toggler"))
+		goto out;
+
+	/* Make toggler thread to run */
+	usleep(1);
+
+	for (i = 0; i < loop; i++) {
+		struct test_subprogs *skel = test_subprogs__open_and_load();
+
+		if (!ASSERT_OK_PTR(skel, "skel open"))
+			break;
+		test_subprogs__destroy(skel);
+	}
+
+	ctx.stop = true;
+	pthread_join(toggler, NULL);
+out:
+	close(ctx.fd);
+}
+
+static void test_subprogs_alone(void)
+{
+	struct test_subprogs *skel;
+	struct test_subprogs_unused *skel2;
+	int err;
+
+	skel = test_subprogs__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	err = test_subprogs__attach(skel);
+	if (!ASSERT_OK(err, "skel attach"))
+		goto cleanup;
+
+	usleep(1);
+
+	ASSERT_EQ(skel->bss->res1, 12, "res1");
+	ASSERT_EQ(skel->bss->res2, 17, "res2");
+	ASSERT_EQ(skel->bss->res3, 19, "res3");
+	ASSERT_EQ(skel->bss->res4, 36, "res4");
+
+	skel2 = test_subprogs_unused__open_and_load();
+	ASSERT_OK_PTR(skel2, "unused_progs_skel");
+	test_subprogs_unused__destroy(skel2);
+
+cleanup:
+	test_subprogs__destroy(skel);
+}
+
+void test_subprogs(void)
+{
+	if (test__start_subtest("subprogs_alone"))
+		test_subprogs_alone();
+	if (test__start_subtest("subprogs_and_jit_harden"))
+		test_subprogs_with_jit_harden_toggling();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/subprogs_extable.c b/tools/testing/selftests/bpf/prog_tests/subprogs_extable.c
new file mode 100644
index 000000000000..3afd9f775f68
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/subprogs_extable.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "test_subprogs_extable.skel.h"
+
+void test_subprogs_extable(void)
+{
+	const int read_sz = 456;
+	struct test_subprogs_extable *skel;
+	int err;
+
+	skel = test_subprogs_extable__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = test_subprogs_extable__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	ASSERT_OK(trigger_module_test_read(read_sz), "trigger_read");
+
+	ASSERT_NEQ(skel->bss->triggered, 0, "verify at least one program ran");
+
+	test_subprogs_extable__detach(skel);
+
+cleanup:
+	test_subprogs_extable__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/subskeleton.c b/tools/testing/selftests/bpf/prog_tests/subskeleton.c
new file mode 100644
index 000000000000..fdf13ed0152a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/subskeleton.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "test_subskeleton.skel.h"
+#include "test_subskeleton_lib.subskel.h"
+
+static void subskeleton_lib_setup(struct bpf_object *obj)
+{
+	struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);
+
+	if (!ASSERT_OK_PTR(lib, "open subskeleton"))
+		return;
+
+	*lib->rodata.var1 = 1;
+	*lib->data.var2 = 2;
+	lib->bss.var3->var3_1 = 3;
+	lib->bss.var3->var3_2 = 4;
+
+	test_subskeleton_lib__destroy(lib);
+}
+
+static int subskeleton_lib_subresult(struct bpf_object *obj)
+{
+	struct test_subskeleton_lib *lib = test_subskeleton_lib__open(obj);
+	int result;
+
+	if (!ASSERT_OK_PTR(lib, "open subskeleton"))
+		return -EINVAL;
+
+	result = *lib->bss.libout1;
+	ASSERT_EQ(result, 1 + 2 + 3 + 4 + 5 + 6, "lib subresult");
+
+	ASSERT_OK_PTR(lib->progs.lib_perf_handler, "lib_perf_handler");
+	ASSERT_STREQ(bpf_program__name(lib->progs.lib_perf_handler),
+		     "lib_perf_handler", "program name");
+
+	ASSERT_OK_PTR(lib->maps.map1, "map1");
+	ASSERT_STREQ(bpf_map__name(lib->maps.map1), "map1", "map name");
+
+	ASSERT_EQ(*lib->data.var5, 5, "__weak var5");
+	ASSERT_EQ(*lib->data.var6, 6, "extern var6");
+	ASSERT_TRUE(*lib->kconfig.CONFIG_BPF_SYSCALL, "CONFIG_BPF_SYSCALL");
+
+	test_subskeleton_lib__destroy(lib);
+	return result;
+}
+
+/* initialize and load through skeleton, then instantiate subskeleton out of it */
+static void subtest_skel_subskeleton(void)
+{
+	int err, result;
+	struct test_subskeleton *skel;
+
+	skel = test_subskeleton__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->rodata->rovar1 = 10;
+	skel->rodata->var1 = 1;
+	subskeleton_lib_setup(skel->obj);
+
+	err = test_subskeleton__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	err = test_subskeleton__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	result = subskeleton_lib_subresult(skel->obj) * 10;
+	ASSERT_EQ(skel->bss->out1, result, "unexpected calculation");
+
+cleanup:
+	test_subskeleton__destroy(skel);
+}
+
+/* initialize and load through generic bpf_object API, then instantiate subskeleton out of it */
+static void subtest_obj_subskeleton(void)
+{
+	int err, result;
+	const void *elf_bytes;
+	size_t elf_bytes_sz = 0, rodata_sz = 0, bss_sz = 0;
+	struct bpf_object *obj;
+	const struct bpf_map *map;
+	const struct bpf_program *prog;
+	struct bpf_link *link = NULL;
+	struct test_subskeleton__rodata *rodata;
+	struct test_subskeleton__bss *bss;
+
+	elf_bytes = test_subskeleton__elf_bytes(&elf_bytes_sz);
+	if (!ASSERT_OK_PTR(elf_bytes, "elf_bytes"))
+		return;
+
+	obj = bpf_object__open_mem(elf_bytes, elf_bytes_sz, NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open_mem"))
+		return;
+
+	map = bpf_object__find_map_by_name(obj, ".rodata");
+	if (!ASSERT_OK_PTR(map, "rodata_map_by_name"))
+		goto cleanup;
+
+	rodata = bpf_map__initial_value(map, &rodata_sz);
+	if (!ASSERT_OK_PTR(rodata, "rodata_get"))
+		goto cleanup;
+
+	rodata->rovar1 = 10;
+	rodata->var1 = 1;
+	subskeleton_lib_setup(obj);
+
+	err = bpf_object__load(obj);
+	if (!ASSERT_OK(err, "obj_load"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(obj, "handler1");
+	if (!ASSERT_OK_PTR(prog, "prog_by_name"))
+		goto cleanup;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "prog_attach"))
+		goto cleanup;
+
+	/* trigger tracepoint */
+	usleep(1);
+
+	map = bpf_object__find_map_by_name(obj, ".bss");
+	if (!ASSERT_OK_PTR(map, "bss_map_by_name"))
+		goto cleanup;
+
+	bss = bpf_map__initial_value(map, &bss_sz);
+	if (!ASSERT_OK_PTR(rodata, "rodata_get"))
+		goto cleanup;
+
+	result = subskeleton_lib_subresult(obj) * 10;
+	ASSERT_EQ(bss->out1, result, "out1");
+
+cleanup:
+	bpf_link__destroy(link);
+	bpf_object__close(obj);
+}
+
+
+void test_subskeleton(void)
+{
+	if (test__start_subtest("skel_subskel"))
+		subtest_skel_subskeleton();
+	if (test__start_subtest("obj_subskel"))
+		subtest_obj_subskeleton();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/summarization.c b/tools/testing/selftests/bpf/prog_tests/summarization.c
new file mode 100644
index 000000000000..5dd6c120a838
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/summarization.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bpf/libbpf.h"
+#include "summarization_freplace.skel.h"
+#include "summarization.skel.h"
+#include <test_progs.h>
+
+static void print_verifier_log(const char *log)
+{
+	if (env.verbosity >= VERBOSE_VERY)
+		fprintf(stdout, "VERIFIER LOG:\n=============\n%s=============\n", log);
+}
+
+static void test_aux(const char *main_prog_name,
+		     const char *to_be_replaced,
+		     const char *replacement,
+		     bool expect_load,
+		     const char *err_msg)
+{
+	struct summarization_freplace *freplace = NULL;
+	struct bpf_program *freplace_prog = NULL;
+	struct bpf_program *main_prog = NULL;
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	struct summarization *main = NULL;
+	char log[16*1024];
+	int err;
+
+	opts.kernel_log_buf = log;
+	opts.kernel_log_size = sizeof(log);
+	if (env.verbosity >= VERBOSE_SUPER)
+		opts.kernel_log_level = 1 | 2 | 4;
+	main = summarization__open_opts(&opts);
+	if (!ASSERT_OK_PTR(main, "summarization__open"))
+		goto out;
+	main_prog = bpf_object__find_program_by_name(main->obj, main_prog_name);
+	if (!ASSERT_OK_PTR(main_prog, "main_prog"))
+		goto out;
+	bpf_program__set_autoload(main_prog, true);
+	err = summarization__load(main);
+	print_verifier_log(log);
+	if (!ASSERT_OK(err, "summarization__load"))
+		goto out;
+	freplace = summarization_freplace__open_opts(&opts);
+	if (!ASSERT_OK_PTR(freplace, "summarization_freplace__open"))
+		goto out;
+	freplace_prog = bpf_object__find_program_by_name(freplace->obj, replacement);
+	if (!ASSERT_OK_PTR(freplace_prog, "freplace_prog"))
+		goto out;
+	bpf_program__set_autoload(freplace_prog, true);
+	bpf_program__set_autoattach(freplace_prog, true);
+	bpf_program__set_attach_target(freplace_prog,
+				       bpf_program__fd(main_prog),
+				       to_be_replaced);
+	err = summarization_freplace__load(freplace);
+	print_verifier_log(log);
+
+	/* The might_sleep extension doesn't work yet as sleepable calls are not
+	 * allowed, but preserve the check in case it's supported later and then
+	 * this particular combination can be enabled.
+	 */
+	if (!strcmp("might_sleep", replacement) && err) {
+		ASSERT_HAS_SUBSTR(log, "helper call might sleep in a non-sleepable prog", "error log");
+		ASSERT_EQ(err, -EINVAL, "err");
+		test__skip();
+		goto out;
+	}
+
+	if (expect_load) {
+		ASSERT_OK(err, "summarization_freplace__load");
+	} else {
+		ASSERT_ERR(err, "summarization_freplace__load");
+		ASSERT_HAS_SUBSTR(log, err_msg, "error log");
+	}
+
+out:
+	summarization_freplace__destroy(freplace);
+	summarization__destroy(main);
+}
+
+/* There are two global subprograms in both summarization.skel.h:
+ * - one changes packet data;
+ * - another does not.
+ * It is ok to freplace subprograms that change packet data with those
+ * that either do or do not. It is only ok to freplace subprograms
+ * that do not change packet data with those that do not as well.
+ * The below tests check outcomes for each combination of such freplace.
+ * Also test a case when main subprogram itself is replaced and is a single
+ * subprogram in a program.
+ *
+ * This holds for might_sleep programs. It is ok to replace might_sleep with
+ * might_sleep and with does_not_sleep, but does_not_sleep cannot be replaced
+ * with might_sleep.
+ */
+void test_summarization_freplace(void)
+{
+	struct {
+		const char *main;
+		const char *to_be_replaced;
+		bool has_side_effect;
+	} mains[2][4] = {
+		{
+			{ "main_changes_with_subprogs",		"changes_pkt_data",	    true },
+			{ "main_changes_with_subprogs",		"does_not_change_pkt_data", false },
+			{ "main_changes",			"main_changes",             true },
+			{ "main_does_not_change",		"main_does_not_change",     false },
+		},
+		{
+			{ "main_might_sleep_with_subprogs",	"might_sleep",		    true },
+			{ "main_might_sleep_with_subprogs",	"does_not_sleep",	    false },
+			{ "main_might_sleep",			"main_might_sleep",	    true },
+			{ "main_does_not_sleep",		"main_does_not_sleep",	    false },
+		},
+	};
+	const char *pkt_err = "Extension program changes packet data";
+	const char *slp_err = "Extension program may sleep";
+	struct {
+		const char *func;
+		bool has_side_effect;
+		const char *err_msg;
+	} replacements[2][2] = {
+		{
+			{ "changes_pkt_data",	      true,	pkt_err },
+			{ "does_not_change_pkt_data", false,	pkt_err },
+		},
+		{
+			{ "might_sleep",	      true,	slp_err },
+			{ "does_not_sleep",	      false,	slp_err },
+		},
+	};
+	char buf[64];
+
+	for (int t = 0; t < 2; t++) {
+		for (int i = 0; i < ARRAY_SIZE(mains); ++i) {
+			for (int j = 0; j < ARRAY_SIZE(replacements); ++j) {
+				snprintf(buf, sizeof(buf), "%s_with_%s",
+					 mains[t][i].to_be_replaced, replacements[t][j].func);
+				if (!test__start_subtest(buf))
+					continue;
+				test_aux(mains[t][i].main, mains[t][i].to_be_replaced, replacements[t][j].func,
+					 mains[t][i].has_side_effect || !replacements[t][j].has_side_effect,
+					 replacements[t][j].err_msg);
+			}
+		}
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/syscall.c b/tools/testing/selftests/bpf/prog_tests/syscall.c
new file mode 100644
index 000000000000..0be8301c0ffd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/syscall.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "syscall.skel.h"
+
+struct args {
+	__u64 log_buf;
+	__u32 log_size;
+	int max_entries;
+	int map_fd;
+	int prog_fd;
+	int btf_fd;
+};
+
+static void test_syscall_load_prog(void)
+{
+	static char verifier_log[8192];
+	struct args ctx = {
+		.max_entries = 1024,
+		.log_buf = (uintptr_t) verifier_log,
+		.log_size = sizeof(verifier_log),
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, tattr,
+		.ctx_in = &ctx,
+		.ctx_size_in = sizeof(ctx),
+	);
+	struct syscall *skel = NULL;
+	__u64 key = 12, value = 0;
+	int err, prog_fd;
+
+	skel = syscall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.load_prog);
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+	ASSERT_EQ(err, 0, "err");
+	ASSERT_EQ(tattr.retval, 1, "retval");
+	ASSERT_GT(ctx.map_fd, 0, "ctx.map_fd");
+	ASSERT_GT(ctx.prog_fd, 0, "ctx.prog_fd");
+	ASSERT_OK(memcmp(verifier_log, "processed", sizeof("processed") - 1),
+		  "verifier_log");
+
+	err = bpf_map_lookup_elem(ctx.map_fd, &key, &value);
+	ASSERT_EQ(err, 0, "map_lookup");
+	ASSERT_EQ(value, 34, "map lookup value");
+cleanup:
+	syscall__destroy(skel);
+	if (ctx.prog_fd > 0)
+		close(ctx.prog_fd);
+	if (ctx.map_fd > 0)
+		close(ctx.map_fd);
+	if (ctx.btf_fd > 0)
+		close(ctx.btf_fd);
+}
+
+static void test_syscall_update_outer_map(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct syscall *skel;
+	int err, prog_fd;
+
+	skel = syscall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.update_outer_map);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_EQ(err, 0, "err");
+	ASSERT_EQ(opts.retval, 1, "retval");
+cleanup:
+	syscall__destroy(skel);
+}
+
+void test_syscall(void)
+{
+	if (test__start_subtest("load_prog"))
+		test_syscall_load_prog();
+	if (test__start_subtest("update_outer_map"))
+		test_syscall_update_outer_map();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tailcalls.c b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
new file mode 100644
index 000000000000..0ab36503c3b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tailcalls.c
@@ -0,0 +1,1710 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <unistd.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "tailcall_poke.skel.h"
+#include "tailcall_bpf2bpf_hierarchy2.skel.h"
+#include "tailcall_bpf2bpf_hierarchy3.skel.h"
+#include "tailcall_freplace.skel.h"
+#include "tc_bpf2bpf.skel.h"
+#include "tailcall_fail.skel.h"
+
+/* test_tailcall_1 checks basic functionality by patching multiple locations
+ * in a single program for a single tail call slot with nop->jmp, jmp->nop
+ * and jmp->jmp rewrites. Also checks for nop->nop.
+ */
+static void test_tailcall_1(void)
+{
+	int err, map_fd, prog_fd, main_fd, i, j;
+	struct bpf_map *prog_array;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char prog_name[32];
+	char buff[128] = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall1.bpf.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
+				 &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, i, "tailcall retval");
+
+		err = bpf_map_delete_elem(map_fd, &i);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 3, "tailcall retval");
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_OK(topts.retval, "tailcall retval");
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		j = bpf_map__max_entries(prog_array) - 1 - i;
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", j);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		j = bpf_map__max_entries(prog_array) - 1 - i;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, j, "tailcall retval");
+
+		err = bpf_map_delete_elem(map_fd, &i);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 3, "tailcall retval");
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_map_delete_elem(map_fd, &i);
+		if (CHECK_FAIL(err >= 0 || errno != ENOENT))
+			goto out;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, 3, "tailcall retval");
+	}
+
+out:
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_2 checks that patching multiple programs for a single
+ * tail call slot works. It also jumps through several programs and tests
+ * the tail call limit counter.
+ */
+static void test_tailcall_2(void)
+{
+	int err, map_fd, prog_fd, main_fd, i;
+	struct bpf_map *prog_array;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char prog_name[32];
+	char buff[128] = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall2.bpf.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
+				 &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 2, "tailcall retval");
+
+	i = 2;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 3, "tailcall retval");
+out:
+	bpf_object__close(obj);
+}
+
+static void test_tailcall_count(const char *which, bool test_fentry,
+				bool test_fexit)
+{
+	struct bpf_object *obj = NULL, *fentry_obj = NULL, *fexit_obj = NULL;
+	struct bpf_link *fentry_link = NULL, *fexit_link = NULL;
+	int err, map_fd, prog_fd, main_fd, data_fd, i, val;
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_program *prog;
+	char buff[128] = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(which, BPF_PROG_TYPE_SCHED_CLS, &obj,
+			    &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	prog = bpf_object__find_program_by_name(obj, "classifier_0");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(prog_fd < 0))
+		goto out;
+
+	i = 0;
+	err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	if (test_fentry) {
+		fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_fentry.bpf.o",
+						   NULL);
+		if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file"))
+			goto out;
+
+		prog = bpf_object__find_program_by_name(fentry_obj, "fentry");
+		if (!ASSERT_OK_PTR(prog, "find fentry prog"))
+			goto out;
+
+		err = bpf_program__set_attach_target(prog, prog_fd,
+						     "subprog_tail");
+		if (!ASSERT_OK(err, "set_attach_target subprog_tail"))
+			goto out;
+
+		err = bpf_object__load(fentry_obj);
+		if (!ASSERT_OK(err, "load fentry_obj"))
+			goto out;
+
+		fentry_link = bpf_program__attach_trace(prog);
+		if (!ASSERT_OK_PTR(fentry_link, "attach_trace"))
+			goto out;
+	}
+
+	if (test_fexit) {
+		fexit_obj = bpf_object__open_file("tailcall_bpf2bpf_fexit.bpf.o",
+						  NULL);
+		if (!ASSERT_OK_PTR(fexit_obj, "open fexit_obj file"))
+			goto out;
+
+		prog = bpf_object__find_program_by_name(fexit_obj, "fexit");
+		if (!ASSERT_OK_PTR(prog, "find fexit prog"))
+			goto out;
+
+		err = bpf_program__set_attach_target(prog, prog_fd,
+						     "subprog_tail");
+		if (!ASSERT_OK(err, "set_attach_target subprog_tail"))
+			goto out;
+
+		err = bpf_object__load(fexit_obj);
+		if (!ASSERT_OK(err, "load fexit_obj"))
+			goto out;
+
+		fexit_link = bpf_program__attach_trace(prog);
+		if (!ASSERT_OK_PTR(fexit_link, "attach_trace"))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	data_map = bpf_object__find_map_by_name(obj, "tailcall.bss");
+	if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map)))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (CHECK_FAIL(data_fd < 0))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val, 33, "tailcall count");
+
+	if (test_fentry) {
+		data_map = bpf_object__find_map_by_name(fentry_obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find tailcall_bpf2bpf_fentry.bss map"))
+			goto out;
+
+		data_fd = bpf_map__fd(data_map);
+		if (!ASSERT_FALSE(data_fd < 0,
+				  "find tailcall_bpf2bpf_fentry.bss map fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_lookup_elem(data_fd, &i, &val);
+		ASSERT_OK(err, "fentry count");
+		ASSERT_EQ(val, 33, "fentry count");
+	}
+
+	if (test_fexit) {
+		data_map = bpf_object__find_map_by_name(fexit_obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find tailcall_bpf2bpf_fexit.bss map"))
+			goto out;
+
+		data_fd = bpf_map__fd(data_map);
+		if (!ASSERT_FALSE(data_fd < 0,
+				  "find tailcall_bpf2bpf_fexit.bss map fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_lookup_elem(data_fd, &i, &val);
+		ASSERT_OK(err, "fexit count");
+		ASSERT_EQ(val, 33, "fexit count");
+	}
+
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_OK(topts.retval, "tailcall retval");
+out:
+	bpf_link__destroy(fentry_link);
+	bpf_link__destroy(fexit_link);
+	bpf_object__close(fentry_obj);
+	bpf_object__close(fexit_obj);
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_3 checks that the count value of the tail call limit
+ * enforcement matches with expectations. JIT uses direct jump.
+ */
+static void test_tailcall_3(void)
+{
+	test_tailcall_count("tailcall3.bpf.o", false, false);
+}
+
+/* test_tailcall_6 checks that the count value of the tail call limit
+ * enforcement matches with expectations. JIT uses indirect jump.
+ */
+static void test_tailcall_6(void)
+{
+	test_tailcall_count("tailcall6.bpf.o", false, false);
+}
+
+/* test_tailcall_4 checks that the kernel properly selects indirect jump
+ * for the case where the key is not known. Latter is passed via global
+ * data to select different targets we can compare return value of.
+ */
+static void test_tailcall_4(void)
+{
+	int err, map_fd, prog_fd, main_fd, data_fd, i;
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	static const int zero = 0;
+	char buff[128] = {};
+	char prog_name[32];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall4.bpf.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
+				 &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	data_map = bpf_object__find_map_by_name(obj, "tailcall.bss");
+	if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map)))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (CHECK_FAIL(data_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_map_update_elem(data_fd, &zero, &i, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, i, "tailcall retval");
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_map_update_elem(data_fd, &zero, &i, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_map_delete_elem(map_fd, &i);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, 3, "tailcall retval");
+	}
+out:
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_5 probes similarly to test_tailcall_4 that the kernel generates
+ * an indirect jump when the keys are const but different from different branches.
+ */
+static void test_tailcall_5(void)
+{
+	int err, map_fd, prog_fd, main_fd, data_fd, i, key[] = { 1111, 1234, 5678 };
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	static const int zero = 0;
+	char buff[128] = {};
+	char prog_name[32];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall5.bpf.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
+				 &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	data_map = bpf_object__find_map_by_name(obj, "tailcall.bss");
+	if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map)))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (CHECK_FAIL(data_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_map_update_elem(data_fd, &zero, &key[i], BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, i, "tailcall retval");
+	}
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		err = bpf_map_update_elem(data_fd, &zero, &key[i], BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_map_delete_elem(map_fd, &i);
+		if (CHECK_FAIL(err))
+			goto out;
+
+		err = bpf_prog_test_run_opts(main_fd, &topts);
+		ASSERT_OK(err, "tailcall");
+		ASSERT_EQ(topts.retval, 3, "tailcall retval");
+	}
+out:
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_bpf2bpf_1 purpose is to make sure that tailcalls are working
+ * correctly in correlation with BPF subprograms
+ */
+static void test_tailcall_bpf2bpf_1(void)
+{
+	int err, map_fd, prog_fd, main_fd, i;
+	struct bpf_map *prog_array;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char prog_name[32];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall_bpf2bpf1.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	/* nop -> jmp */
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	/* jmp -> nop, call subprog that will do tailcall */
+	i = 1;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_OK(topts.retval, "tailcall retval");
+
+	/* make sure that subprog can access ctx and entry prog that
+	 * called this subprog can properly return
+	 */
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, sizeof(pkt_v4) * 2, "tailcall retval");
+out:
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_bpf2bpf_2 checks that the count value of the tail call limit
+ * enforcement matches with expectations when tailcall is preceded with
+ * bpf2bpf call.
+ */
+static void test_tailcall_bpf2bpf_2(void)
+{
+	int err, map_fd, prog_fd, main_fd, data_fd, i, val;
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char buff[128] = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall_bpf2bpf2.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	prog = bpf_object__find_program_by_name(obj, "classifier_0");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(prog_fd < 0))
+		goto out;
+
+	i = 0;
+	err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	data_map = bpf_object__find_map_by_name(obj, "tailcall.bss");
+	if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map)))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (CHECK_FAIL(data_fd < 0))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val, 33, "tailcall count");
+
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_OK(topts.retval, "tailcall retval");
+out:
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_bpf2bpf_3 checks that non-trivial amount of stack (up to
+ * 256 bytes) can be used within bpf subprograms that have the tailcalls
+ * in them
+ */
+static void test_tailcall_bpf2bpf_3(void)
+{
+	int err, map_fd, prog_fd, main_fd, i;
+	struct bpf_map *prog_array;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char prog_name[32];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall_bpf2bpf3.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, sizeof(pkt_v4) * 3, "tailcall retval");
+
+	i = 1;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, sizeof(pkt_v4), "tailcall retval");
+
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, sizeof(pkt_v4) * 2, "tailcall retval");
+out:
+	bpf_object__close(obj);
+}
+
+#include "tailcall_bpf2bpf4.skel.h"
+
+/* test_tailcall_bpf2bpf_4 checks that tailcall counter is correctly preserved
+ * across tailcalls combined with bpf2bpf calls. for making sure that tailcall
+ * counter behaves correctly, bpf program will go through following flow:
+ *
+ * entry -> entry_subprog -> tailcall0 -> bpf_func0 -> subprog0 ->
+ * -> tailcall1 -> bpf_func1 -> subprog1 -> tailcall2 -> bpf_func2 ->
+ * subprog2 [here bump global counter] --------^
+ *
+ * We go through first two tailcalls and start counting from the subprog2 where
+ * the loop begins. At the end of the test make sure that the global counter is
+ * equal to 31, because tailcall counter includes the first two tailcalls
+ * whereas global counter is incremented only on loop presented on flow above.
+ *
+ * The noise parameter is used to insert bpf_map_update calls into the logic
+ * to force verifier to patch instructions. This allows us to ensure jump
+ * logic remains correct with instruction movement.
+ */
+static void test_tailcall_bpf2bpf_4(bool noise)
+{
+	int err, map_fd, prog_fd, main_fd, data_fd, i;
+	struct tailcall_bpf2bpf4__bss val;
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	char prog_name[32];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall_bpf2bpf4.bpf.o", BPF_PROG_TYPE_SCHED_CLS,
+				 &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (CHECK_FAIL(!prog))
+		goto out;
+
+	main_fd = bpf_program__fd(prog);
+	if (CHECK_FAIL(main_fd < 0))
+		goto out;
+
+	prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+	if (CHECK_FAIL(!prog_array))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (CHECK_FAIL(map_fd < 0))
+		goto out;
+
+	for (i = 0; i < bpf_map__max_entries(prog_array); i++) {
+		snprintf(prog_name, sizeof(prog_name), "classifier_%d", i);
+
+		prog = bpf_object__find_program_by_name(obj, prog_name);
+		if (CHECK_FAIL(!prog))
+			goto out;
+
+		prog_fd = bpf_program__fd(prog);
+		if (CHECK_FAIL(prog_fd < 0))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (CHECK_FAIL(err))
+			goto out;
+	}
+
+	data_map = bpf_object__find_map_by_name(obj, "tailcall.bss");
+	if (CHECK_FAIL(!data_map || !bpf_map__is_internal(data_map)))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (CHECK_FAIL(data_fd < 0))
+		goto out;
+
+	i = 0;
+	val.noise = noise;
+	val.count = 0;
+	err = bpf_map_update_elem(data_fd, &i, &val, BPF_ANY);
+	if (CHECK_FAIL(err))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, sizeof(pkt_v4) * 3, "tailcall retval");
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val.count, 31, "tailcall count");
+
+out:
+	bpf_object__close(obj);
+}
+
+#include "tailcall_bpf2bpf6.skel.h"
+
+/* Tail call counting works even when there is data on stack which is
+ * not aligned to 8 bytes.
+ */
+static void test_tailcall_bpf2bpf_6(void)
+{
+	struct tailcall_bpf2bpf6 *obj;
+	int err, map_fd, prog_fd, main_fd, data_fd, i, val;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	obj = tailcall_bpf2bpf6__open_and_load();
+	if (!ASSERT_OK_PTR(obj, "open and load"))
+		return;
+
+	main_fd = bpf_program__fd(obj->progs.entry);
+	if (!ASSERT_GE(main_fd, 0, "entry prog fd"))
+		goto out;
+
+	map_fd = bpf_map__fd(obj->maps.jmp_table);
+	if (!ASSERT_GE(map_fd, 0, "jmp_table map fd"))
+		goto out;
+
+	prog_fd = bpf_program__fd(obj->progs.classifier_0);
+	if (!ASSERT_GE(prog_fd, 0, "classifier_0 prog fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "jmp_table map update"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(main_fd, &topts);
+	ASSERT_OK(err, "entry prog test run");
+	ASSERT_EQ(topts.retval, 0, "tailcall retval");
+
+	data_fd = bpf_map__fd(obj->maps.bss);
+	if (!ASSERT_GE(data_fd, 0, "bss map fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "bss map lookup");
+	ASSERT_EQ(val, 1, "done flag is set");
+
+out:
+	tailcall_bpf2bpf6__destroy(obj);
+}
+
+/* test_tailcall_bpf2bpf_fentry checks that the count value of the tail call
+ * limit enforcement matches with expectations when tailcall is preceded with
+ * bpf2bpf call, and the bpf2bpf call is traced by fentry.
+ */
+static void test_tailcall_bpf2bpf_fentry(void)
+{
+	test_tailcall_count("tailcall_bpf2bpf2.bpf.o", true, false);
+}
+
+/* test_tailcall_bpf2bpf_fexit checks that the count value of the tail call
+ * limit enforcement matches with expectations when tailcall is preceded with
+ * bpf2bpf call, and the bpf2bpf call is traced by fexit.
+ */
+static void test_tailcall_bpf2bpf_fexit(void)
+{
+	test_tailcall_count("tailcall_bpf2bpf2.bpf.o", false, true);
+}
+
+/* test_tailcall_bpf2bpf_fentry_fexit checks that the count value of the tail
+ * call limit enforcement matches with expectations when tailcall is preceded
+ * with bpf2bpf call, and the bpf2bpf call is traced by both fentry and fexit.
+ */
+static void test_tailcall_bpf2bpf_fentry_fexit(void)
+{
+	test_tailcall_count("tailcall_bpf2bpf2.bpf.o", true, true);
+}
+
+/* test_tailcall_bpf2bpf_fentry_entry checks that the count value of the tail
+ * call limit enforcement matches with expectations when tailcall is preceded
+ * with bpf2bpf call, and the bpf2bpf caller is traced by fentry.
+ */
+static void test_tailcall_bpf2bpf_fentry_entry(void)
+{
+	struct bpf_object *tgt_obj = NULL, *fentry_obj = NULL;
+	int err, map_fd, prog_fd, data_fd, i, val;
+	struct bpf_map *prog_array, *data_map;
+	struct bpf_link *fentry_link = NULL;
+	struct bpf_program *prog;
+	char buff[128] = {};
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load("tailcall_bpf2bpf2.bpf.o",
+				 BPF_PROG_TYPE_SCHED_CLS,
+				 &tgt_obj, &prog_fd);
+	if (!ASSERT_OK(err, "load tgt_obj"))
+		return;
+
+	prog_array = bpf_object__find_map_by_name(tgt_obj, "jmp_table");
+	if (!ASSERT_OK_PTR(prog_array, "find jmp_table map"))
+		goto out;
+
+	map_fd = bpf_map__fd(prog_array);
+	if (!ASSERT_FALSE(map_fd < 0, "find jmp_table map fd"))
+		goto out;
+
+	prog = bpf_object__find_program_by_name(tgt_obj, "classifier_0");
+	if (!ASSERT_OK_PTR(prog, "find classifier_0 prog"))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+	if (!ASSERT_FALSE(prog_fd < 0, "find classifier_0 prog fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "update jmp_table"))
+		goto out;
+
+	fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_fentry.bpf.o",
+					   NULL);
+	if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file"))
+		goto out;
+
+	prog = bpf_object__find_program_by_name(fentry_obj, "fentry");
+	if (!ASSERT_OK_PTR(prog, "find fentry prog"))
+		goto out;
+
+	err = bpf_program__set_attach_target(prog, prog_fd, "classifier_0");
+	if (!ASSERT_OK(err, "set_attach_target classifier_0"))
+		goto out;
+
+	err = bpf_object__load(fentry_obj);
+	if (!ASSERT_OK(err, "load fentry_obj"))
+		goto out;
+
+	fentry_link = bpf_program__attach_trace(prog);
+	if (!ASSERT_OK_PTR(fentry_link, "attach_trace"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	data_map = bpf_object__find_map_by_name(tgt_obj, "tailcall.bss");
+	if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+			  "find tailcall.bss map"))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (!ASSERT_FALSE(data_fd < 0, "find tailcall.bss map fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val, 34, "tailcall count");
+
+	data_map = bpf_object__find_map_by_name(fentry_obj, ".bss");
+	if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+			  "find tailcall_bpf2bpf_fentry.bss map"))
+		goto out;
+
+	data_fd = bpf_map__fd(data_map);
+	if (!ASSERT_FALSE(data_fd < 0,
+			  "find tailcall_bpf2bpf_fentry.bss map fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(data_fd, &i, &val);
+	ASSERT_OK(err, "fentry count");
+	ASSERT_EQ(val, 1, "fentry count");
+
+out:
+	bpf_link__destroy(fentry_link);
+	bpf_object__close(fentry_obj);
+	bpf_object__close(tgt_obj);
+}
+
+#define JMP_TABLE "/sys/fs/bpf/jmp_table"
+
+static int poke_thread_exit;
+
+static void *poke_update(void *arg)
+{
+	__u32 zero = 0, prog1_fd, prog2_fd, map_fd;
+	struct tailcall_poke *call = arg;
+
+	map_fd = bpf_map__fd(call->maps.jmp_table);
+	prog1_fd = bpf_program__fd(call->progs.call1);
+	prog2_fd = bpf_program__fd(call->progs.call2);
+
+	while (!poke_thread_exit) {
+		bpf_map_update_elem(map_fd, &zero, &prog1_fd, BPF_ANY);
+		bpf_map_update_elem(map_fd, &zero, &prog2_fd, BPF_ANY);
+	}
+
+	return NULL;
+}
+
+/*
+ * We are trying to hit prog array update during another program load
+ * that shares the same prog array map.
+ *
+ * For that we share the jmp_table map between two skeleton instances
+ * by pinning the jmp_table to same path. Then first skeleton instance
+ * periodically updates jmp_table in 'poke update' thread while we load
+ * the second skeleton instance in the main thread.
+ */
+static void test_tailcall_poke(void)
+{
+	struct tailcall_poke *call, *test;
+	int err, cnt = 10;
+	pthread_t thread;
+
+	unlink(JMP_TABLE);
+
+	call = tailcall_poke__open_and_load();
+	if (!ASSERT_OK_PTR(call, "tailcall_poke__open"))
+		return;
+
+	err = bpf_map__pin(call->maps.jmp_table, JMP_TABLE);
+	if (!ASSERT_OK(err, "bpf_map__pin"))
+		goto out;
+
+	err = pthread_create(&thread, NULL, poke_update, call);
+	if (!ASSERT_OK(err, "new toggler"))
+		goto out;
+
+	while (cnt--) {
+		test = tailcall_poke__open();
+		if (!ASSERT_OK_PTR(test, "tailcall_poke__open"))
+			break;
+
+		err = bpf_map__set_pin_path(test->maps.jmp_table, JMP_TABLE);
+		if (!ASSERT_OK(err, "bpf_map__pin")) {
+			tailcall_poke__destroy(test);
+			break;
+		}
+
+		bpf_program__set_autoload(test->progs.test, true);
+		bpf_program__set_autoload(test->progs.call1, false);
+		bpf_program__set_autoload(test->progs.call2, false);
+
+		err = tailcall_poke__load(test);
+		tailcall_poke__destroy(test);
+		if (!ASSERT_OK(err, "tailcall_poke__load"))
+			break;
+	}
+
+	poke_thread_exit = 1;
+	ASSERT_OK(pthread_join(thread, NULL), "pthread_join");
+
+out:
+	bpf_map__unpin(call->maps.jmp_table, JMP_TABLE);
+	tailcall_poke__destroy(call);
+}
+
+static void test_tailcall_hierarchy_count(const char *which, bool test_fentry,
+					  bool test_fexit,
+					  bool test_fentry_entry)
+{
+	int err, map_fd, prog_fd, main_data_fd, fentry_data_fd = 0, fexit_data_fd = 0, i, val;
+	struct bpf_object *obj = NULL, *fentry_obj = NULL, *fexit_obj = NULL;
+	struct bpf_link *fentry_link = NULL, *fexit_link = NULL;
+	struct bpf_program *prog, *fentry_prog;
+	struct bpf_map *prog_array, *data_map;
+	int fentry_prog_fd;
+	char buff[128] = {};
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = buff,
+		.data_size_in = sizeof(buff),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(which, BPF_PROG_TYPE_SCHED_CLS, &obj,
+				 &prog_fd);
+	if (!ASSERT_OK(err, "load obj"))
+		return;
+
+	prog = bpf_object__find_program_by_name(obj, "entry");
+	if (!ASSERT_OK_PTR(prog, "find entry prog"))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+	if (!ASSERT_GE(prog_fd, 0, "prog_fd"))
+		goto out;
+
+	if (test_fentry_entry) {
+		fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_hierarchy_fentry.bpf.o",
+						   NULL);
+		if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file"))
+			goto out;
+
+		fentry_prog = bpf_object__find_program_by_name(fentry_obj,
+							       "fentry");
+		if (!ASSERT_OK_PTR(prog, "find fentry prog"))
+			goto out;
+
+		err = bpf_program__set_attach_target(fentry_prog, prog_fd,
+						     "entry");
+		if (!ASSERT_OK(err, "set_attach_target entry"))
+			goto out;
+
+		err = bpf_object__load(fentry_obj);
+		if (!ASSERT_OK(err, "load fentry_obj"))
+			goto out;
+
+		fentry_link = bpf_program__attach_trace(fentry_prog);
+		if (!ASSERT_OK_PTR(fentry_link, "attach_trace"))
+			goto out;
+
+		fentry_prog_fd = bpf_program__fd(fentry_prog);
+		if (!ASSERT_GE(fentry_prog_fd, 0, "fentry_prog_fd"))
+			goto out;
+
+		prog_array = bpf_object__find_map_by_name(fentry_obj, "jmp_table");
+		if (!ASSERT_OK_PTR(prog_array, "find jmp_table"))
+			goto out;
+
+		map_fd = bpf_map__fd(prog_array);
+		if (!ASSERT_GE(map_fd, 0, "map_fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_update_elem(map_fd, &i, &fentry_prog_fd, BPF_ANY);
+		if (!ASSERT_OK(err, "update jmp_table"))
+			goto out;
+
+		data_map = bpf_object__find_map_by_name(fentry_obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find data_map"))
+			goto out;
+
+	} else {
+		prog_array = bpf_object__find_map_by_name(obj, "jmp_table");
+		if (!ASSERT_OK_PTR(prog_array, "find jmp_table"))
+			goto out;
+
+		map_fd = bpf_map__fd(prog_array);
+		if (!ASSERT_GE(map_fd, 0, "map_fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_update_elem(map_fd, &i, &prog_fd, BPF_ANY);
+		if (!ASSERT_OK(err, "update jmp_table"))
+			goto out;
+
+		data_map = bpf_object__find_map_by_name(obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find data_map"))
+			goto out;
+	}
+
+	if (test_fentry) {
+		fentry_obj = bpf_object__open_file("tailcall_bpf2bpf_fentry.bpf.o",
+						   NULL);
+		if (!ASSERT_OK_PTR(fentry_obj, "open fentry_obj file"))
+			goto out;
+
+		prog = bpf_object__find_program_by_name(fentry_obj, "fentry");
+		if (!ASSERT_OK_PTR(prog, "find fentry prog"))
+			goto out;
+
+		err = bpf_program__set_attach_target(prog, prog_fd,
+						     "subprog_tail");
+		if (!ASSERT_OK(err, "set_attach_target subprog_tail"))
+			goto out;
+
+		err = bpf_object__load(fentry_obj);
+		if (!ASSERT_OK(err, "load fentry_obj"))
+			goto out;
+
+		fentry_link = bpf_program__attach_trace(prog);
+		if (!ASSERT_OK_PTR(fentry_link, "attach_trace"))
+			goto out;
+	}
+
+	if (test_fexit) {
+		fexit_obj = bpf_object__open_file("tailcall_bpf2bpf_fexit.bpf.o",
+						  NULL);
+		if (!ASSERT_OK_PTR(fexit_obj, "open fexit_obj file"))
+			goto out;
+
+		prog = bpf_object__find_program_by_name(fexit_obj, "fexit");
+		if (!ASSERT_OK_PTR(prog, "find fexit prog"))
+			goto out;
+
+		err = bpf_program__set_attach_target(prog, prog_fd,
+						     "subprog_tail");
+		if (!ASSERT_OK(err, "set_attach_target subprog_tail"))
+			goto out;
+
+		err = bpf_object__load(fexit_obj);
+		if (!ASSERT_OK(err, "load fexit_obj"))
+			goto out;
+
+		fexit_link = bpf_program__attach_trace(prog);
+		if (!ASSERT_OK_PTR(fexit_link, "attach_trace"))
+			goto out;
+	}
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	main_data_fd = bpf_map__fd(data_map);
+	if (!ASSERT_GE(main_data_fd, 0, "main_data_fd"))
+		goto out;
+
+	i = 0;
+	err = bpf_map_lookup_elem(main_data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val, 34, "tailcall count");
+
+	if (test_fentry) {
+		data_map = bpf_object__find_map_by_name(fentry_obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find tailcall_bpf2bpf_fentry.bss map"))
+			goto out;
+
+		fentry_data_fd = bpf_map__fd(data_map);
+		if (!ASSERT_GE(fentry_data_fd, 0,
+				  "find tailcall_bpf2bpf_fentry.bss map fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_lookup_elem(fentry_data_fd, &i, &val);
+		ASSERT_OK(err, "fentry count");
+		ASSERT_EQ(val, 68, "fentry count");
+	}
+
+	if (test_fexit) {
+		data_map = bpf_object__find_map_by_name(fexit_obj, ".bss");
+		if (!ASSERT_FALSE(!data_map || !bpf_map__is_internal(data_map),
+				  "find tailcall_bpf2bpf_fexit.bss map"))
+			goto out;
+
+		fexit_data_fd = bpf_map__fd(data_map);
+		if (!ASSERT_GE(fexit_data_fd, 0,
+				  "find tailcall_bpf2bpf_fexit.bss map fd"))
+			goto out;
+
+		i = 0;
+		err = bpf_map_lookup_elem(fexit_data_fd, &i, &val);
+		ASSERT_OK(err, "fexit count");
+		ASSERT_EQ(val, 68, "fexit count");
+	}
+
+	i = 0;
+	err = bpf_map_delete_elem(map_fd, &i);
+	if (!ASSERT_OK(err, "delete_elem from jmp_table"))
+		goto out;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "tailcall");
+	ASSERT_EQ(topts.retval, 1, "tailcall retval");
+
+	i = 0;
+	err = bpf_map_lookup_elem(main_data_fd, &i, &val);
+	ASSERT_OK(err, "tailcall count");
+	ASSERT_EQ(val, 35, "tailcall count");
+
+	if (test_fentry) {
+		i = 0;
+		err = bpf_map_lookup_elem(fentry_data_fd, &i, &val);
+		ASSERT_OK(err, "fentry count");
+		ASSERT_EQ(val, 70, "fentry count");
+	}
+
+	if (test_fexit) {
+		i = 0;
+		err = bpf_map_lookup_elem(fexit_data_fd, &i, &val);
+		ASSERT_OK(err, "fexit count");
+		ASSERT_EQ(val, 70, "fexit count");
+	}
+
+out:
+	bpf_link__destroy(fentry_link);
+	bpf_link__destroy(fexit_link);
+	bpf_object__close(fentry_obj);
+	bpf_object__close(fexit_obj);
+	bpf_object__close(obj);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_1 checks that the count value of the tail
+ * call limit enforcement matches with expectations when tailcalls are preceded
+ * with two bpf2bpf calls.
+ *
+ *         subprog --tailcall-> entry
+ * entry <
+ *         subprog --tailcall-> entry
+ */
+static void test_tailcall_bpf2bpf_hierarchy_1(void)
+{
+	test_tailcall_hierarchy_count("tailcall_bpf2bpf_hierarchy1.bpf.o",
+				      false, false, false);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_fentry checks that the count value of the
+ * tail call limit enforcement matches with expectations when tailcalls are
+ * preceded with two bpf2bpf calls, and the two subprogs are traced by fentry.
+ */
+static void test_tailcall_bpf2bpf_hierarchy_fentry(void)
+{
+	test_tailcall_hierarchy_count("tailcall_bpf2bpf_hierarchy1.bpf.o",
+				      true, false, false);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_fexit checks that the count value of the tail
+ * call limit enforcement matches with expectations when tailcalls are preceded
+ * with two bpf2bpf calls, and the two subprogs are traced by fexit.
+ */
+static void test_tailcall_bpf2bpf_hierarchy_fexit(void)
+{
+	test_tailcall_hierarchy_count("tailcall_bpf2bpf_hierarchy1.bpf.o",
+				      false, true, false);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_fentry_fexit checks that the count value of
+ * the tail call limit enforcement matches with expectations when tailcalls are
+ * preceded with two bpf2bpf calls, and the two subprogs are traced by both
+ * fentry and fexit.
+ */
+static void test_tailcall_bpf2bpf_hierarchy_fentry_fexit(void)
+{
+	test_tailcall_hierarchy_count("tailcall_bpf2bpf_hierarchy1.bpf.o",
+				      true, true, false);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_fentry_entry checks that the count value of
+ * the tail call limit enforcement matches with expectations when tailcalls are
+ * preceded with two bpf2bpf calls in fentry.
+ */
+static void test_tailcall_bpf2bpf_hierarchy_fentry_entry(void)
+{
+	test_tailcall_hierarchy_count("tc_dummy.bpf.o", false, false, true);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_2 checks that the count value of the tail
+ * call limit enforcement matches with expectations:
+ *
+ *         subprog_tail0 --tailcall-> classifier_0 -> subprog_tail0
+ * entry <
+ *         subprog_tail1 --tailcall-> classifier_1 -> subprog_tail1
+ */
+static void test_tailcall_bpf2bpf_hierarchy_2(void)
+{
+	RUN_TESTS(tailcall_bpf2bpf_hierarchy2);
+}
+
+/* test_tailcall_bpf2bpf_hierarchy_3 checks that the count value of the tail
+ * call limit enforcement matches with expectations:
+ *
+ *                                   subprog with jmp_table0 to classifier_0
+ * entry --tailcall-> classifier_0 <
+ *                                   subprog with jmp_table1 to classifier_0
+ */
+static void test_tailcall_bpf2bpf_hierarchy_3(void)
+{
+	RUN_TESTS(tailcall_bpf2bpf_hierarchy3);
+}
+
+/* test_tailcall_freplace checks that the freplace prog fails to update the
+ * prog_array map, no matter whether the freplace prog attaches to its target.
+ */
+static void test_tailcall_freplace(void)
+{
+	struct tailcall_freplace *freplace_skel = NULL;
+	struct bpf_link *freplace_link = NULL;
+	struct bpf_program *freplace_prog;
+	struct tc_bpf2bpf *tc_skel = NULL;
+	int prog_fd, tc_prog_fd, map_fd;
+	char buff[128] = {};
+	int err, key;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = buff,
+		    .data_size_in = sizeof(buff),
+		    .repeat = 1,
+	);
+
+	freplace_skel = tailcall_freplace__open();
+	if (!ASSERT_OK_PTR(freplace_skel, "tailcall_freplace__open"))
+		return;
+
+	tc_skel = tc_bpf2bpf__open_and_load();
+	if (!ASSERT_OK_PTR(tc_skel, "tc_bpf2bpf__open_and_load"))
+		goto out;
+
+	tc_prog_fd = bpf_program__fd(tc_skel->progs.entry_tc);
+	freplace_prog = freplace_skel->progs.entry_freplace;
+	err = bpf_program__set_attach_target(freplace_prog, tc_prog_fd,
+					     "subprog_tc");
+	if (!ASSERT_OK(err, "set_attach_target"))
+		goto out;
+
+	err = tailcall_freplace__load(freplace_skel);
+	if (!ASSERT_OK(err, "tailcall_freplace__load"))
+		goto out;
+
+	map_fd = bpf_map__fd(freplace_skel->maps.jmp_table);
+	prog_fd = bpf_program__fd(freplace_prog);
+	key = 0;
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	ASSERT_ERR(err, "update jmp_table failure");
+
+	freplace_link = bpf_program__attach_freplace(freplace_prog, tc_prog_fd,
+						     "subprog_tc");
+	if (!ASSERT_OK_PTR(freplace_link, "attach_freplace"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	ASSERT_ERR(err, "update jmp_table failure");
+
+out:
+	bpf_link__destroy(freplace_link);
+	tailcall_freplace__destroy(freplace_skel);
+	tc_bpf2bpf__destroy(tc_skel);
+}
+
+/* test_tailcall_bpf2bpf_freplace checks the failure that fails to attach a tail
+ * callee prog with freplace prog or fails to update an extended prog to
+ * prog_array map.
+ */
+static void test_tailcall_bpf2bpf_freplace(void)
+{
+	struct tailcall_freplace *freplace_skel = NULL;
+	struct bpf_link *freplace_link = NULL;
+	struct tc_bpf2bpf *tc_skel = NULL;
+	char buff[128] = {};
+	int prog_fd, map_fd;
+	int err, key;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = buff,
+		    .data_size_in = sizeof(buff),
+		    .repeat = 1,
+	);
+
+	tc_skel = tc_bpf2bpf__open_and_load();
+	if (!ASSERT_OK_PTR(tc_skel, "tc_bpf2bpf__open_and_load"))
+		goto out;
+
+	prog_fd = bpf_program__fd(tc_skel->progs.entry_tc);
+	freplace_skel = tailcall_freplace__open();
+	if (!ASSERT_OK_PTR(freplace_skel, "tailcall_freplace__open"))
+		goto out;
+
+	err = bpf_program__set_attach_target(freplace_skel->progs.entry_freplace,
+					     prog_fd, "subprog_tc");
+	if (!ASSERT_OK(err, "set_attach_target"))
+		goto out;
+
+	err = tailcall_freplace__load(freplace_skel);
+	if (!ASSERT_OK(err, "tailcall_freplace__load"))
+		goto out;
+
+	/* OK to attach then detach freplace prog. */
+
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,
+						     prog_fd, "subprog_tc");
+	if (!ASSERT_OK_PTR(freplace_link, "attach_freplace"))
+		goto out;
+
+	err = bpf_link__destroy(freplace_link);
+	freplace_link = NULL;
+	if (!ASSERT_OK(err, "destroy link"))
+		goto out;
+
+	/* OK to update prog_array map then delete element from the map. */
+
+	key = 0;
+	map_fd = bpf_map__fd(freplace_skel->maps.jmp_table);
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "update jmp_table"))
+		goto out;
+
+	err = bpf_map_delete_elem(map_fd, &key);
+	if (!ASSERT_OK(err, "delete_elem from jmp_table"))
+		goto out;
+
+	/* Fail to attach a tail callee prog with freplace prog. */
+
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	if (!ASSERT_OK(err, "update jmp_table"))
+		goto out;
+
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,
+						     prog_fd, "subprog_tc");
+	if (!ASSERT_ERR_PTR(freplace_link, "attach_freplace failure"))
+		goto out;
+
+	err = bpf_map_delete_elem(map_fd, &key);
+	if (!ASSERT_OK(err, "delete_elem from jmp_table"))
+		goto out;
+
+	/* Fail to update an extended prog to prog_array map. */
+
+	freplace_link = bpf_program__attach_freplace(freplace_skel->progs.entry_freplace,
+						     prog_fd, "subprog_tc");
+	if (!ASSERT_OK_PTR(freplace_link, "attach_freplace"))
+		goto out;
+
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	if (!ASSERT_ERR(err, "update jmp_table failure"))
+		goto out;
+
+out:
+	bpf_link__destroy(freplace_link);
+	tailcall_freplace__destroy(freplace_skel);
+	tc_bpf2bpf__destroy(tc_skel);
+}
+
+static void test_tailcall_failure()
+{
+	RUN_TESTS(tailcall_fail);
+}
+
+void test_tailcalls(void)
+{
+	if (test__start_subtest("tailcall_1"))
+		test_tailcall_1();
+	if (test__start_subtest("tailcall_2"))
+		test_tailcall_2();
+	if (test__start_subtest("tailcall_3"))
+		test_tailcall_3();
+	if (test__start_subtest("tailcall_4"))
+		test_tailcall_4();
+	if (test__start_subtest("tailcall_5"))
+		test_tailcall_5();
+	if (test__start_subtest("tailcall_6"))
+		test_tailcall_6();
+	if (test__start_subtest("tailcall_bpf2bpf_1"))
+		test_tailcall_bpf2bpf_1();
+	if (test__start_subtest("tailcall_bpf2bpf_2"))
+		test_tailcall_bpf2bpf_2();
+	if (test__start_subtest("tailcall_bpf2bpf_3"))
+		test_tailcall_bpf2bpf_3();
+	if (test__start_subtest("tailcall_bpf2bpf_4"))
+		test_tailcall_bpf2bpf_4(false);
+	if (test__start_subtest("tailcall_bpf2bpf_5"))
+		test_tailcall_bpf2bpf_4(true);
+	if (test__start_subtest("tailcall_bpf2bpf_6"))
+		test_tailcall_bpf2bpf_6();
+	if (test__start_subtest("tailcall_bpf2bpf_fentry"))
+		test_tailcall_bpf2bpf_fentry();
+	if (test__start_subtest("tailcall_bpf2bpf_fexit"))
+		test_tailcall_bpf2bpf_fexit();
+	if (test__start_subtest("tailcall_bpf2bpf_fentry_fexit"))
+		test_tailcall_bpf2bpf_fentry_fexit();
+	if (test__start_subtest("tailcall_bpf2bpf_fentry_entry"))
+		test_tailcall_bpf2bpf_fentry_entry();
+	if (test__start_subtest("tailcall_poke"))
+		test_tailcall_poke();
+	if (test__start_subtest("tailcall_bpf2bpf_hierarchy_1"))
+		test_tailcall_bpf2bpf_hierarchy_1();
+	if (test__start_subtest("tailcall_bpf2bpf_hierarchy_fentry"))
+		test_tailcall_bpf2bpf_hierarchy_fentry();
+	if (test__start_subtest("tailcall_bpf2bpf_hierarchy_fexit"))
+		test_tailcall_bpf2bpf_hierarchy_fexit();
+	if (test__start_subtest("tailcall_bpf2bpf_hierarchy_fentry_fexit"))
+		test_tailcall_bpf2bpf_hierarchy_fentry_fexit();
+	if (test__start_subtest("tailcall_bpf2bpf_hierarchy_fentry_entry"))
+		test_tailcall_bpf2bpf_hierarchy_fentry_entry();
+	test_tailcall_bpf2bpf_hierarchy_2();
+	test_tailcall_bpf2bpf_hierarchy_3();
+	if (test__start_subtest("tailcall_freplace"))
+		test_tailcall_freplace();
+	if (test__start_subtest("tailcall_bpf2bpf_freplace"))
+		test_tailcall_bpf2bpf_freplace();
+	if (test__start_subtest("tailcall_failure"))
+		test_tailcall_failure();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_fd_query_rawtp.c b/tools/testing/selftests/bpf/prog_tests/task_fd_query_rawtp.c
new file mode 100644
index 000000000000..3d34bab01e48
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_fd_query_rawtp.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_task_fd_query_rawtp(void)
+{
+	const char *file = "./test_get_stack_rawtp.bpf.o";
+	__u64 probe_offset, probe_addr;
+	__u32 len, prog_id, fd_type;
+	struct bpf_object *obj;
+	int efd, err, prog_fd;
+	__u32 duration = 0;
+	char buf[256];
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_RAW_TRACEPOINT, &obj, &prog_fd);
+	if (CHECK(err, "prog_load raw tp", "err %d errno %d\n", err, errno))
+		return;
+
+	efd = bpf_raw_tracepoint_open("sys_enter", prog_fd);
+	if (CHECK(efd < 0, "raw_tp_open", "err %d errno %d\n", efd, errno))
+		goto close_prog;
+
+	/* query (getpid(), efd) */
+	len = sizeof(buf);
+	err = bpf_task_fd_query(getpid(), efd, 0, buf, &len, &prog_id,
+				&fd_type, &probe_offset, &probe_addr);
+	if (CHECK(err < 0, "bpf_task_fd_query", "err %d errno %d\n", err,
+		  errno))
+		goto close_prog;
+
+	err = fd_type == BPF_FD_TYPE_RAW_TRACEPOINT &&
+	      strcmp(buf, "sys_enter") == 0;
+	if (CHECK(!err, "check_results", "fd_type %d tp_name %s\n",
+		  fd_type, buf))
+		goto close_prog;
+
+	/* test zero len */
+	len = 0;
+	err = bpf_task_fd_query(getpid(), efd, 0, buf, &len, &prog_id,
+				&fd_type, &probe_offset, &probe_addr);
+	if (CHECK(err < 0, "bpf_task_fd_query (len = 0)", "err %d errno %d\n",
+		  err, errno))
+		goto close_prog;
+	err = fd_type == BPF_FD_TYPE_RAW_TRACEPOINT &&
+	      len == strlen("sys_enter");
+	if (CHECK(!err, "check_results", "fd_type %d len %u\n", fd_type, len))
+		goto close_prog;
+
+	/* test empty buffer */
+	len = sizeof(buf);
+	err = bpf_task_fd_query(getpid(), efd, 0, 0, &len, &prog_id,
+				&fd_type, &probe_offset, &probe_addr);
+	if (CHECK(err < 0, "bpf_task_fd_query (buf = 0)", "err %d errno %d\n",
+		  err, errno))
+		goto close_prog;
+	err = fd_type == BPF_FD_TYPE_RAW_TRACEPOINT &&
+	      len == strlen("sys_enter");
+	if (CHECK(!err, "check_results", "fd_type %d len %u\n", fd_type, len))
+		goto close_prog;
+
+	/* test smaller buffer */
+	len = 3;
+	err = bpf_task_fd_query(getpid(), efd, 0, buf, &len, &prog_id,
+				&fd_type, &probe_offset, &probe_addr);
+	if (CHECK(err >= 0 || errno != ENOSPC, "bpf_task_fd_query (len = 3)",
+		  "err %d errno %d\n", err, errno))
+		goto close_prog;
+	err = fd_type == BPF_FD_TYPE_RAW_TRACEPOINT &&
+	      len == strlen("sys_enter") &&
+	      strcmp(buf, "sy") == 0;
+	if (CHECK(!err, "check_results", "fd_type %d len %u\n", fd_type, len))
+		goto close_prog;
+
+close_prog:
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c
new file mode 100644
index 000000000000..c91eda624657
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_fd_query_tp.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+static void test_task_fd_query_tp_core(const char *probe_name,
+				       const char *tp_name)
+{
+	const char *file = "./test_tracepoint.bpf.o";
+	int err, bytes, efd, prog_fd, pmu_fd;
+	struct perf_event_attr attr = {};
+	__u64 probe_offset, probe_addr;
+	__u32 len, prog_id, fd_type;
+	struct bpf_object *obj = NULL;
+	__u32 duration = 0;
+	char buf[256];
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_TRACEPOINT, &obj, &prog_fd);
+	if (CHECK(err, "bpf_prog_test_load", "err %d errno %d\n", err, errno))
+		goto close_prog;
+
+	if (access("/sys/kernel/tracing/trace", F_OK) == 0) {
+		snprintf(buf, sizeof(buf),
+			 "/sys/kernel/tracing/events/%s/id", probe_name);
+	} else {
+		snprintf(buf, sizeof(buf),
+			 "/sys/kernel/debug/tracing/events/%s/id", probe_name);
+	}
+	efd = open(buf, O_RDONLY, 0);
+	if (CHECK(efd < 0, "open", "err %d errno %d\n", efd, errno))
+		goto close_prog;
+	bytes = read(efd, buf, sizeof(buf));
+	close(efd);
+	if (CHECK(bytes <= 0 || bytes >= sizeof(buf), "read",
+		  "bytes %d errno %d\n", bytes, errno))
+		goto close_prog;
+
+	attr.config = strtol(buf, NULL, 0);
+	attr.type = PERF_TYPE_TRACEPOINT;
+	attr.sample_type = PERF_SAMPLE_RAW;
+	attr.sample_period = 1;
+	attr.wakeup_events = 1;
+	pmu_fd = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+			 0 /* cpu 0 */, -1 /* group id */,
+			 0 /* flags */);
+	if (CHECK(err, "perf_event_open", "err %d errno %d\n", err, errno))
+		goto close_pmu;
+
+	err = ioctl(pmu_fd, PERF_EVENT_IOC_ENABLE, 0);
+	if (CHECK(err, "perf_event_ioc_enable", "err %d errno %d\n", err,
+		  errno))
+		goto close_pmu;
+
+	err = ioctl(pmu_fd, PERF_EVENT_IOC_SET_BPF, prog_fd);
+	if (CHECK(err, "perf_event_ioc_set_bpf", "err %d errno %d\n", err,
+		  errno))
+		goto close_pmu;
+
+	/* query (getpid(), pmu_fd) */
+	len = sizeof(buf);
+	err = bpf_task_fd_query(getpid(), pmu_fd, 0, buf, &len, &prog_id,
+				&fd_type, &probe_offset, &probe_addr);
+	if (CHECK(err < 0, "bpf_task_fd_query", "err %d errno %d\n", err,
+		  errno))
+		goto close_pmu;
+
+	err = (fd_type == BPF_FD_TYPE_TRACEPOINT) && !strcmp(buf, tp_name);
+	if (CHECK(!err, "check_results", "fd_type %d tp_name %s\n",
+		  fd_type, buf))
+		goto close_pmu;
+
+close_pmu:
+	close(pmu_fd);
+close_prog:
+	bpf_object__close(obj);
+}
+
+void test_task_fd_query_tp(void)
+{
+	test_task_fd_query_tp_core("sched/sched_switch",
+				   "sched_switch");
+	test_task_fd_query_tp_core("syscalls/sys_enter_read",
+				   "sys_enter_read");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_kfunc.c b/tools/testing/selftests/bpf/prog_tests/task_kfunc.c
new file mode 100644
index 000000000000..83b90335967a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_kfunc.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#define _GNU_SOURCE
+#include <sys/wait.h>
+#include <test_progs.h>
+#include <unistd.h>
+
+#include "task_kfunc_failure.skel.h"
+#include "task_kfunc_success.skel.h"
+
+static struct task_kfunc_success *open_load_task_kfunc_skel(void)
+{
+	struct task_kfunc_success *skel;
+	int err;
+
+	skel = task_kfunc_success__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return NULL;
+
+	skel->bss->pid = getpid();
+
+	err = task_kfunc_success__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	return skel;
+
+cleanup:
+	task_kfunc_success__destroy(skel);
+	return NULL;
+}
+
+static void run_success_test(const char *prog_name)
+{
+	struct task_kfunc_success *skel;
+	int status;
+	pid_t child_pid;
+	struct bpf_program *prog;
+	struct bpf_link *link = NULL;
+
+	skel = open_load_task_kfunc_skel();
+	if (!ASSERT_OK_PTR(skel, "open_load_skel"))
+		return;
+
+	if (!ASSERT_OK(skel->bss->err, "pre_spawn_err"))
+		goto cleanup;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto cleanup;
+
+	link = bpf_program__attach(prog);
+	if (!ASSERT_OK_PTR(link, "attached_link"))
+		goto cleanup;
+
+	child_pid = fork();
+	if (!ASSERT_GT(child_pid, -1, "child_pid"))
+		goto cleanup;
+	if (child_pid == 0)
+		_exit(0);
+	waitpid(child_pid, &status, 0);
+
+	ASSERT_OK(skel->bss->err, "post_wait_err");
+
+cleanup:
+	bpf_link__destroy(link);
+	task_kfunc_success__destroy(skel);
+}
+
+static int run_vpid_test(void *prog_name)
+{
+	struct task_kfunc_success *skel;
+	struct bpf_program *prog;
+	int prog_fd, err = 0;
+
+	if (getpid() != 1)
+		return 1;
+
+	skel = open_load_task_kfunc_skel();
+	if (!skel)
+		return 2;
+
+	if (skel->bss->err) {
+		err = 3;
+		goto cleanup;
+	}
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!prog) {
+		err = 4;
+		goto cleanup;
+	}
+
+	prog_fd = bpf_program__fd(prog);
+	if (prog_fd < 0) {
+		err = 5;
+		goto cleanup;
+	}
+
+	if (bpf_prog_test_run_opts(prog_fd, NULL)) {
+		err = 6;
+		goto cleanup;
+	}
+
+	if (skel->bss->err)
+		err = 7 + skel->bss->err;
+cleanup:
+	task_kfunc_success__destroy(skel);
+	return err;
+}
+
+static void run_vpid_success_test(const char *prog_name)
+{
+	const int stack_size = 1024 * 1024;
+	int child_pid, wstatus;
+	char *stack;
+
+	stack = (char *)malloc(stack_size);
+	if (!ASSERT_OK_PTR(stack, "clone_stack"))
+		return;
+
+	child_pid = clone(run_vpid_test, stack + stack_size,
+			  CLONE_NEWPID | SIGCHLD, (void *)prog_name);
+	if (!ASSERT_GT(child_pid, -1, "child_pid"))
+		goto cleanup;
+
+	if (!ASSERT_GT(waitpid(child_pid, &wstatus, 0), -1, "waitpid"))
+		goto cleanup;
+
+	if (WEXITSTATUS(wstatus) > 7)
+		ASSERT_OK(WEXITSTATUS(wstatus) - 7, "vpid_test_failure");
+	else
+		ASSERT_OK(WEXITSTATUS(wstatus), "run_vpid_test_err");
+cleanup:
+	free(stack);
+}
+
+static const char * const success_tests[] = {
+	"test_task_acquire_release_argument",
+	"test_task_acquire_release_current",
+	"test_task_acquire_leave_in_map",
+	"test_task_xchg_release",
+	"test_task_map_acquire_release",
+	"test_task_current_acquire_release",
+	"test_task_from_pid_arg",
+	"test_task_from_pid_current",
+	"test_task_from_pid_invalid",
+	"task_kfunc_acquire_trusted_walked",
+	"test_task_kfunc_flavor_relo",
+	"test_task_kfunc_flavor_relo_not_found",
+};
+
+static const char * const vpid_success_tests[] = {
+	"test_task_from_vpid_current",
+	"test_task_from_vpid_invalid",
+};
+
+void test_task_kfunc(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(success_tests); i++) {
+		if (!test__start_subtest(success_tests[i]))
+			continue;
+
+		run_success_test(success_tests[i]);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(vpid_success_tests); i++) {
+		if (!test__start_subtest(vpid_success_tests[i]))
+			continue;
+
+		run_vpid_success_test(vpid_success_tests[i]);
+	}
+
+	RUN_TESTS(task_kfunc_failure);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_local_data.h b/tools/testing/selftests/bpf/prog_tests/task_local_data.h
new file mode 100644
index 000000000000..2de38776a2d4
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_local_data.h
@@ -0,0 +1,386 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TASK_LOCAL_DATA_H
+#define __TASK_LOCAL_DATA_H
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdatomic.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+
+#ifdef TLD_FREE_DATA_ON_THREAD_EXIT
+#include <pthread.h>
+#endif
+
+#include <bpf/bpf.h>
+
+/*
+ * OPTIONS
+ *
+ *   Define the option before including the header
+ *
+ *   TLD_FREE_DATA_ON_THREAD_EXIT - Frees memory on thread exit automatically
+ *
+ *   Thread-specific memory for storing TLD is allocated lazily on the first call to
+ *   tld_get_data(). The thread that calls it must also call tld_free() on thread exit
+ *   to prevent memory leak. Pthread will be included if the option is defined. A pthread
+ *   key will be registered with a destructor that calls tld_free().
+ *
+ *
+ *   TLD_DYN_DATA_SIZE - The maximum size of memory allocated for TLDs created dynamically
+ *   (default: 64 bytes)
+ *
+ *   A TLD can be defined statically using TLD_DEFINE_KEY() or created on the fly using
+ *   tld_create_key(). As the total size of TLDs created with tld_create_key() cannot be
+ *   possibly known statically, a memory area of size TLD_DYN_DATA_SIZE will be allocated
+ *   for these TLDs. This additional memory is allocated for every thread that calls
+ *   tld_get_data() even if no tld_create_key are actually called, so be mindful of
+ *   potential memory wastage. Use TLD_DEFINE_KEY() whenever possible as just enough memory
+ *   will be allocated for TLDs created with it.
+ *
+ *
+ *   TLD_NAME_LEN - The maximum length of the name of a TLD (default: 62)
+ *
+ *   Setting TLD_NAME_LEN will affect the maximum number of TLDs a process can store,
+ *   TLD_MAX_DATA_CNT.
+ *
+ *
+ *   TLD_DATA_USE_ALIGNED_ALLOC - Always use aligned_alloc() instead of malloc()
+ *
+ *   When allocating the memory for storing TLDs, we need to make sure there is a memory
+ *   region of the X bytes within a page. This is due to the limit posed by UPTR: memory
+ *   pinned to the kernel cannot exceed a page nor can it cross the page boundary. The
+ *   library normally calls malloc(2*X) given X bytes of total TLDs, and only uses
+ *   aligned_alloc(PAGE_SIZE, X) when X >= PAGE_SIZE / 2. This is to reduce memory wastage
+ *   as not all memory allocator can use the exact amount of memory requested to fulfill
+ *   aligned_alloc(). For example, some may round the size up to the alignment. Enable the
+ *   option to always use aligned_alloc() if the implementation has low memory overhead.
+ */
+
+#define TLD_PAGE_SIZE getpagesize()
+#define TLD_PAGE_MASK (~(TLD_PAGE_SIZE - 1))
+
+#define TLD_ROUND_MASK(x, y) ((__typeof__(x))((y) - 1))
+#define TLD_ROUND_UP(x, y) ((((x) - 1) | TLD_ROUND_MASK(x, y)) + 1)
+
+#define TLD_READ_ONCE(x) (*(volatile typeof(x) *)&(x))
+
+#ifndef TLD_DYN_DATA_SIZE
+#define TLD_DYN_DATA_SIZE 64
+#endif
+
+#define TLD_MAX_DATA_CNT (TLD_PAGE_SIZE / sizeof(struct tld_metadata) - 1)
+
+#ifndef TLD_NAME_LEN
+#define TLD_NAME_LEN 62
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+	__s16 off;
+} tld_key_t;
+
+struct tld_metadata {
+	char name[TLD_NAME_LEN];
+	_Atomic __u16 size;
+};
+
+struct tld_meta_u {
+	_Atomic __u8 cnt;
+	__u16 size;
+	struct tld_metadata metadata[];
+};
+
+struct tld_data_u {
+	__u64 start; /* offset of tld_data_u->data in a page */
+	char data[];
+};
+
+struct tld_map_value {
+	void *data;
+	struct tld_meta_u *meta;
+};
+
+struct tld_meta_u * _Atomic tld_meta_p __attribute__((weak));
+__thread struct tld_data_u *tld_data_p __attribute__((weak));
+__thread void *tld_data_alloc_p __attribute__((weak));
+
+#ifdef TLD_FREE_DATA_ON_THREAD_EXIT
+pthread_key_t tld_pthread_key __attribute__((weak));
+
+static void tld_free(void);
+
+static void __tld_thread_exit_handler(void *unused)
+{
+	tld_free();
+}
+#endif
+
+static int __tld_init_meta_p(void)
+{
+	struct tld_meta_u *meta, *uninit = NULL;
+	int err = 0;
+
+	meta = (struct tld_meta_u *)aligned_alloc(TLD_PAGE_SIZE, TLD_PAGE_SIZE);
+	if (!meta) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	memset(meta, 0, TLD_PAGE_SIZE);
+	meta->size = TLD_DYN_DATA_SIZE;
+
+	if (!atomic_compare_exchange_strong(&tld_meta_p, &uninit, meta)) {
+		free(meta);
+		goto out;
+	}
+
+#ifdef TLD_FREE_DATA_ON_THREAD_EXIT
+	pthread_key_create(&tld_pthread_key, __tld_thread_exit_handler);
+#endif
+out:
+	return err;
+}
+
+static int __tld_init_data_p(int map_fd)
+{
+	bool use_aligned_alloc = false;
+	struct tld_map_value map_val;
+	struct tld_data_u *data;
+	void *data_alloc = NULL;
+	int err, tid_fd = -1;
+
+	tid_fd = syscall(SYS_pidfd_open, sys_gettid(), O_EXCL);
+	if (tid_fd < 0) {
+		err = -errno;
+		goto out;
+	}
+
+#ifdef TLD_DATA_USE_ALIGNED_ALLOC
+	use_aligned_alloc = true;
+#endif
+
+	/*
+	 * tld_meta_p->size = TLD_DYN_DATA_SIZE +
+	 *          total size of TLDs defined via TLD_DEFINE_KEY()
+	 */
+	data_alloc = (use_aligned_alloc || tld_meta_p->size * 2 >= TLD_PAGE_SIZE) ?
+		aligned_alloc(TLD_PAGE_SIZE, tld_meta_p->size) :
+		malloc(tld_meta_p->size * 2);
+	if (!data_alloc) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	/*
+	 * Always pass a page-aligned address to UPTR since the size of tld_map_value::data
+	 * is a page in BTF. If data_alloc spans across two pages, use the page that contains large
+	 * enough memory.
+	 */
+	if (TLD_PAGE_SIZE - (~TLD_PAGE_MASK & (intptr_t)data_alloc) >= tld_meta_p->size) {
+		map_val.data = (void *)(TLD_PAGE_MASK & (intptr_t)data_alloc);
+		data = data_alloc;
+		data->start = (~TLD_PAGE_MASK & (intptr_t)data_alloc) +
+			      offsetof(struct tld_data_u, data);
+	} else {
+		map_val.data = (void *)(TLD_ROUND_UP((intptr_t)data_alloc, TLD_PAGE_SIZE));
+		data = (void *)(TLD_ROUND_UP((intptr_t)data_alloc, TLD_PAGE_SIZE));
+		data->start = offsetof(struct tld_data_u, data);
+	}
+	map_val.meta = TLD_READ_ONCE(tld_meta_p);
+
+	err = bpf_map_update_elem(map_fd, &tid_fd, &map_val, 0);
+	if (err) {
+		free(data_alloc);
+		goto out;
+	}
+
+	tld_data_p = data;
+	tld_data_alloc_p = data_alloc;
+#ifdef TLD_FREE_DATA_ON_THREAD_EXIT
+	pthread_setspecific(tld_pthread_key, (void *)1);
+#endif
+out:
+	if (tid_fd >= 0)
+		close(tid_fd);
+	return err;
+}
+
+static tld_key_t __tld_create_key(const char *name, size_t size, bool dyn_data)
+{
+	int err, i, sz, off = 0;
+	__u8 cnt;
+
+	if (!TLD_READ_ONCE(tld_meta_p)) {
+		err = __tld_init_meta_p();
+		if (err)
+			return (tld_key_t){err};
+	}
+
+	for (i = 0; i < TLD_MAX_DATA_CNT; i++) {
+retry:
+		cnt = atomic_load(&tld_meta_p->cnt);
+		if (i < cnt) {
+			/* A metadata is not ready until size is updated with a non-zero value */
+			while (!(sz = atomic_load(&tld_meta_p->metadata[i].size)))
+				sched_yield();
+
+			if (!strncmp(tld_meta_p->metadata[i].name, name, TLD_NAME_LEN))
+				return (tld_key_t){-EEXIST};
+
+			off += TLD_ROUND_UP(sz, 8);
+			continue;
+		}
+
+		/*
+		 * TLD_DEFINE_KEY() is given memory upto a page while at most
+		 * TLD_DYN_DATA_SIZE is allocated for tld_create_key()
+		 */
+		if (dyn_data) {
+			if (off + TLD_ROUND_UP(size, 8) > tld_meta_p->size)
+				return (tld_key_t){-E2BIG};
+		} else {
+			if (off + TLD_ROUND_UP(size, 8) > TLD_PAGE_SIZE - sizeof(struct tld_data_u))
+				return (tld_key_t){-E2BIG};
+			tld_meta_p->size += TLD_ROUND_UP(size, 8);
+		}
+
+		/*
+		 * Only one tld_create_key() can increase the current cnt by one and
+		 * takes the latest available slot. Other threads will check again if a new
+		 * TLD can still be added, and then compete for the new slot after the
+		 * succeeding thread update the size.
+		 */
+		if (!atomic_compare_exchange_strong(&tld_meta_p->cnt, &cnt, cnt + 1))
+			goto retry;
+
+		strncpy(tld_meta_p->metadata[i].name, name, TLD_NAME_LEN);
+		atomic_store(&tld_meta_p->metadata[i].size, size);
+		return (tld_key_t){(__s16)off};
+	}
+
+	return (tld_key_t){-ENOSPC};
+}
+
+/**
+ * TLD_DEFINE_KEY() - Define a TLD and a global variable key associated with the TLD.
+ *
+ * @name: The name of the TLD
+ * @size: The size of the TLD
+ * @key: The variable name of the key. Cannot exceed TLD_NAME_LEN
+ *
+ * The macro can only be used in file scope.
+ *
+ * A global variable key of opaque type, tld_key_t, will be declared and initialized before
+ * main() starts. Use tld_key_is_err() or tld_key_err_or_zero() later to check if the key
+ * creation succeeded. Pass the key to tld_get_data() to get a pointer to the TLD.
+ * bpf programs can also fetch the same key by name.
+ *
+ * The total size of TLDs created using TLD_DEFINE_KEY() cannot exceed a page. Just
+ * enough memory will be allocated for each thread on the first call to tld_get_data().
+ */
+#define TLD_DEFINE_KEY(key, name, size)			\
+tld_key_t key;						\
+							\
+__attribute__((constructor))				\
+void __tld_define_key_##key(void)			\
+{							\
+	key = __tld_create_key(name, size, false);	\
+}
+
+/**
+ * tld_create_key() - Create a TLD and return a key associated with the TLD.
+ *
+ * @name: The name the TLD
+ * @size: The size of the TLD
+ *
+ * Return an opaque object key. Use tld_key_is_err() or tld_key_err_or_zero() to check
+ * if the key creation succeeded. Pass the key to tld_get_data() to get a pointer to
+ * locate the TLD. bpf programs can also fetch the same key by name.
+ *
+ * Use tld_create_key() only when a TLD needs to be created dynamically (e.g., @name is
+ * not known statically or a TLD needs to be created conditionally)
+ *
+ * An additional TLD_DYN_DATA_SIZE bytes are allocated per-thread to accommodate TLDs
+ * created dynamically with tld_create_key(). Since only a user page is pinned to the
+ * kernel, when TLDs created with TLD_DEFINE_KEY() uses more than TLD_PAGE_SIZE -
+ * TLD_DYN_DATA_SIZE, the buffer size will be limited to the rest of the page.
+ */
+__attribute__((unused))
+static tld_key_t tld_create_key(const char *name, size_t size)
+{
+	return __tld_create_key(name, size, true);
+}
+
+__attribute__((unused))
+static inline bool tld_key_is_err(tld_key_t key)
+{
+	return key.off < 0;
+}
+
+__attribute__((unused))
+static inline int tld_key_err_or_zero(tld_key_t key)
+{
+	return tld_key_is_err(key) ? key.off : 0;
+}
+
+/**
+ * tld_get_data() - Get a pointer to the TLD associated with the given key of the
+ * calling thread.
+ *
+ * @map_fd: A file descriptor of tld_data_map, the underlying BPF task local storage map
+ * of task local data.
+ * @key: A key object created by TLD_DEFINE_KEY() or tld_create_key().
+ *
+ * Return a pointer to the TLD if the key is valid; NULL if not enough memory for TLD
+ * for this thread, or the key is invalid. The returned pointer is guaranteed to be 8-byte
+ * aligned.
+ *
+ * Threads that call tld_get_data() must call tld_free() on exit to prevent
+ * memory leak if TLD_FREE_DATA_ON_THREAD_EXIT is not defined.
+ */
+__attribute__((unused))
+static void *tld_get_data(int map_fd, tld_key_t key)
+{
+	if (!TLD_READ_ONCE(tld_meta_p))
+		return NULL;
+
+	/* tld_data_p is allocated on the first invocation of tld_get_data() */
+	if (!tld_data_p && __tld_init_data_p(map_fd))
+		return NULL;
+
+	return tld_data_p->data + key.off;
+}
+
+/**
+ * tld_free() - Free task local data memory of the calling thread
+ *
+ * For the calling thread, all pointers to TLDs acquired before will become invalid.
+ *
+ * Users must call tld_free() on thread exit to prevent memory leak. Alternatively,
+ * define TLD_FREE_DATA_ON_THREAD_EXIT and a thread exit handler will be registered
+ * to free the memory automatically.
+ */
+__attribute__((unused))
+static void tld_free(void)
+{
+	if (tld_data_alloc_p) {
+		free(tld_data_alloc_p);
+		tld_data_alloc_p = NULL;
+		tld_data_p = NULL;
+	}
+}
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __TASK_LOCAL_DATA_H */
diff --git a/tools/testing/selftests/bpf/prog_tests/task_local_storage.c b/tools/testing/selftests/bpf/prog_tests/task_local_storage.c
new file mode 100644
index 000000000000..42e822ea352f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_local_storage.c
@@ -0,0 +1,518 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#define _GNU_SOURCE         /* See feature_test_macros(7) */
+#include <unistd.h>
+#include <sched.h>
+#include <pthread.h>
+#include <sys/syscall.h>   /* For SYS_xxx definitions */
+#include <sys/types.h>
+#include <sys/eventfd.h>
+#include <sys/mman.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "task_local_storage_helpers.h"
+#include "task_local_storage.skel.h"
+#include "task_local_storage_exit_creds.skel.h"
+#include "task_ls_recursion.skel.h"
+#include "task_storage_nodeadlock.skel.h"
+#include "uptr_test_common.h"
+#include "task_ls_uptr.skel.h"
+#include "uptr_update_failure.skel.h"
+#include "uptr_failure.skel.h"
+#include "uptr_map_failure.skel.h"
+
+static void test_sys_enter_exit(void)
+{
+	struct task_local_storage *skel;
+	int err;
+
+	skel = task_local_storage__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	skel->bss->target_pid = sys_gettid();
+
+	err = task_local_storage__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	sys_gettid();
+	sys_gettid();
+
+	/* 3x syscalls: 1x attach and 2x gettid */
+	ASSERT_EQ(skel->bss->enter_cnt, 3, "enter_cnt");
+	ASSERT_EQ(skel->bss->exit_cnt, 3, "exit_cnt");
+	ASSERT_EQ(skel->bss->mismatch_cnt, 0, "mismatch_cnt");
+out:
+	task_local_storage__destroy(skel);
+}
+
+static void test_exit_creds(void)
+{
+	struct task_local_storage_exit_creds *skel;
+	int err, run_count, sync_rcu_calls = 0;
+	const int MAX_SYNC_RCU_CALLS = 1000;
+
+	skel = task_local_storage_exit_creds__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	err = task_local_storage_exit_creds__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	/* trigger at least one exit_creds() */
+	if (CHECK_FAIL(system("ls > /dev/null")))
+		goto out;
+
+	/* kern_sync_rcu is not enough on its own as the read section we want
+	 * to wait for may start after we enter synchronize_rcu, so our call
+	 * won't wait for the section to finish. Loop on the run counter
+	 * as well to ensure the program has run.
+	 */
+	do {
+		kern_sync_rcu();
+		run_count = __atomic_load_n(&skel->bss->run_count, __ATOMIC_SEQ_CST);
+	} while (run_count == 0 && ++sync_rcu_calls < MAX_SYNC_RCU_CALLS);
+
+	ASSERT_NEQ(sync_rcu_calls, MAX_SYNC_RCU_CALLS,
+		   "sync_rcu count too high");
+	ASSERT_NEQ(run_count, 0, "run_count");
+	ASSERT_EQ(skel->bss->valid_ptr_count, 0, "valid_ptr_count");
+	ASSERT_NEQ(skel->bss->null_ptr_count, 0, "null_ptr_count");
+out:
+	task_local_storage_exit_creds__destroy(skel);
+}
+
+static void test_recursion(void)
+{
+	int err, map_fd, prog_fd, task_fd;
+	struct task_ls_recursion *skel;
+	struct bpf_prog_info info;
+	__u32 info_len = sizeof(info);
+	long value;
+
+	task_fd = sys_pidfd_open(getpid(), 0);
+	if (!ASSERT_NEQ(task_fd, -1, "sys_pidfd_open"))
+		return;
+
+	skel = task_ls_recursion__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto out;
+
+	err = task_ls_recursion__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	/* trigger sys_enter, make sure it does not cause deadlock */
+	skel->bss->test_pid = getpid();
+	sys_gettid();
+	skel->bss->test_pid = 0;
+	task_ls_recursion__detach(skel);
+
+	/* Refer to the comment in BPF_PROG(on_update) for
+	 * the explanation on the value 201 and 100.
+	 */
+	map_fd = bpf_map__fd(skel->maps.map_a);
+	err = bpf_map_lookup_elem(map_fd, &task_fd, &value);
+	ASSERT_OK(err, "lookup map_a");
+	ASSERT_EQ(value, 201, "map_a value");
+	ASSERT_EQ(skel->bss->nr_del_errs, 1, "bpf_task_storage_delete busy");
+
+	map_fd = bpf_map__fd(skel->maps.map_b);
+	err = bpf_map_lookup_elem(map_fd, &task_fd, &value);
+	ASSERT_OK(err, "lookup map_b");
+	ASSERT_EQ(value, 100, "map_b value");
+
+	prog_fd = bpf_program__fd(skel->progs.on_update);
+	memset(&info, 0, sizeof(info));
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	ASSERT_OK(err, "get prog info");
+	ASSERT_EQ(info.recursion_misses, 0, "on_update prog recursion");
+
+	prog_fd = bpf_program__fd(skel->progs.on_enter);
+	memset(&info, 0, sizeof(info));
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	ASSERT_OK(err, "get prog info");
+	ASSERT_EQ(info.recursion_misses, 0, "on_enter prog recursion");
+
+out:
+	close(task_fd);
+	task_ls_recursion__destroy(skel);
+}
+
+static bool stop;
+
+static void waitall(const pthread_t *tids, int nr)
+{
+	int i;
+
+	stop = true;
+	for (i = 0; i < nr; i++)
+		pthread_join(tids[i], NULL);
+}
+
+static void *sock_create_loop(void *arg)
+{
+	struct task_storage_nodeadlock *skel = arg;
+	int fd;
+
+	while (!stop) {
+		fd = socket(AF_INET, SOCK_STREAM, 0);
+		close(fd);
+		if (skel->bss->nr_get_errs || skel->bss->nr_del_errs)
+			stop = true;
+	}
+
+	return NULL;
+}
+
+static void test_nodeadlock(void)
+{
+	struct task_storage_nodeadlock *skel;
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	const int nr_threads = 32;
+	pthread_t tids[nr_threads];
+	int i, prog_fd, err;
+	cpu_set_t old, new;
+
+	/* Pin all threads to one cpu to increase the chance of preemption
+	 * in a sleepable bpf prog.
+	 */
+	CPU_ZERO(&new);
+	CPU_SET(0, &new);
+	err = sched_getaffinity(getpid(), sizeof(old), &old);
+	if (!ASSERT_OK(err, "getaffinity"))
+		return;
+	err = sched_setaffinity(getpid(), sizeof(new), &new);
+	if (!ASSERT_OK(err, "setaffinity"))
+		return;
+
+	skel = task_storage_nodeadlock__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto done;
+
+	/* Unnecessary recursion and deadlock detection are reproducible
+	 * in the preemptible kernel.
+	 */
+	if (!skel->kconfig->CONFIG_PREEMPTION) {
+		test__skip();
+		goto done;
+	}
+
+	err = task_storage_nodeadlock__attach(skel);
+	ASSERT_OK(err, "attach prog");
+
+	for (i = 0; i < nr_threads; i++) {
+		err = pthread_create(&tids[i], NULL, sock_create_loop, skel);
+		if (err) {
+			/* Only assert once here to avoid excessive
+			 * PASS printing during test failure.
+			 */
+			ASSERT_OK(err, "pthread_create");
+			waitall(tids, i);
+			goto done;
+		}
+	}
+
+	/* With 32 threads, 1s is enough to reproduce the issue */
+	sleep(1);
+	waitall(tids, nr_threads);
+
+	info_len = sizeof(info);
+	prog_fd = bpf_program__fd(skel->progs.socket_post_create);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	ASSERT_OK(err, "get prog info");
+	ASSERT_EQ(info.recursion_misses, 0, "prog recursion");
+
+	ASSERT_EQ(skel->bss->nr_get_errs, 0, "bpf_task_storage_get busy");
+	ASSERT_EQ(skel->bss->nr_del_errs, 0, "bpf_task_storage_delete busy");
+
+done:
+	task_storage_nodeadlock__destroy(skel);
+	sched_setaffinity(getpid(), sizeof(old), &old);
+}
+
+static struct user_data udata __attribute__((aligned(16))) = {
+	.a = 1,
+	.b = 2,
+};
+
+static struct user_data udata2 __attribute__((aligned(16))) = {
+	.a = 3,
+	.b = 4,
+};
+
+static void check_udata2(int expected)
+{
+	udata2.result = udata2.nested_result = 0;
+	usleep(1);
+	ASSERT_EQ(udata2.result, expected, "udata2.result");
+	ASSERT_EQ(udata2.nested_result, expected, "udata2.nested_result");
+}
+
+static void test_uptr_basic(void)
+{
+	int map_fd, parent_task_fd, ev_fd;
+	struct value_type value = {};
+	struct task_ls_uptr *skel;
+	pid_t child_pid, my_tid;
+	__u64 ev_dummy_data = 1;
+	int err;
+
+	my_tid = sys_gettid();
+	parent_task_fd = sys_pidfd_open(my_tid, 0);
+	if (!ASSERT_OK_FD(parent_task_fd, "parent_task_fd"))
+		return;
+
+	ev_fd = eventfd(0, 0);
+	if (!ASSERT_OK_FD(ev_fd, "ev_fd")) {
+		close(parent_task_fd);
+		return;
+	}
+
+	skel = task_ls_uptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto out;
+
+	map_fd = bpf_map__fd(skel->maps.datamap);
+	value.udata = &udata;
+	value.nested.udata = &udata;
+	err = bpf_map_update_elem(map_fd, &parent_task_fd, &value, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "update_elem(udata)"))
+		goto out;
+
+	err = task_ls_uptr__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto out;
+
+	child_pid = fork();
+	if (!ASSERT_NEQ(child_pid, -1, "fork"))
+		goto out;
+
+	/* Call syscall in the child process, but access the map value of
+	 * the parent process in the BPF program to check if the user kptr
+	 * is translated/mapped correctly.
+	 */
+	if (child_pid == 0) {
+		/* child */
+
+		/* Overwrite the user_data in the child process to check if
+		 * the BPF program accesses the user_data of the parent.
+		 */
+		udata.a = 0;
+		udata.b = 0;
+
+		/* Wait for the parent to set child_pid */
+		read(ev_fd, &ev_dummy_data, sizeof(ev_dummy_data));
+		exit(0);
+	}
+
+	skel->bss->parent_pid = my_tid;
+	skel->bss->target_pid = child_pid;
+
+	write(ev_fd, &ev_dummy_data, sizeof(ev_dummy_data));
+
+	err = waitpid(child_pid, NULL, 0);
+	ASSERT_EQ(err, child_pid, "waitpid");
+	ASSERT_EQ(udata.result, MAGIC_VALUE + udata.a + udata.b, "udata.result");
+	ASSERT_EQ(udata.nested_result, MAGIC_VALUE + udata.a + udata.b, "udata.nested_result");
+
+	skel->bss->target_pid = my_tid;
+
+	/* update_elem: uptr changes from udata1 to udata2 */
+	value.udata = &udata2;
+	value.nested.udata = &udata2;
+	err = bpf_map_update_elem(map_fd, &parent_task_fd, &value, BPF_EXIST);
+	if (!ASSERT_OK(err, "update_elem(udata2)"))
+		goto out;
+	check_udata2(MAGIC_VALUE + udata2.a + udata2.b);
+
+	/* update_elem: uptr changes from udata2 uptr to NULL */
+	memset(&value, 0, sizeof(value));
+	err = bpf_map_update_elem(map_fd, &parent_task_fd, &value, BPF_EXIST);
+	if (!ASSERT_OK(err, "update_elem(udata2)"))
+		goto out;
+	check_udata2(0);
+
+	/* update_elem: uptr changes from NULL to udata2 */
+	value.udata = &udata2;
+	value.nested.udata = &udata2;
+	err = bpf_map_update_elem(map_fd, &parent_task_fd, &value, BPF_EXIST);
+	if (!ASSERT_OK(err, "update_elem(udata2)"))
+		goto out;
+	check_udata2(MAGIC_VALUE + udata2.a + udata2.b);
+
+	/* Check if user programs can access the value of user kptrs
+	 * through bpf_map_lookup_elem(). Make sure the kernel value is not
+	 * leaked.
+	 */
+	err = bpf_map_lookup_elem(map_fd, &parent_task_fd, &value);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		goto out;
+	ASSERT_EQ(value.udata, NULL, "value.udata");
+	ASSERT_EQ(value.nested.udata, NULL, "value.nested.udata");
+
+	/* delete_elem */
+	err = bpf_map_delete_elem(map_fd, &parent_task_fd);
+	ASSERT_OK(err, "delete_elem(udata2)");
+	check_udata2(0);
+
+	/* update_elem: add uptr back to test map_free */
+	value.udata = &udata2;
+	value.nested.udata = &udata2;
+	err = bpf_map_update_elem(map_fd, &parent_task_fd, &value, BPF_NOEXIST);
+	ASSERT_OK(err, "update_elem(udata2)");
+
+out:
+	task_ls_uptr__destroy(skel);
+	close(ev_fd);
+	close(parent_task_fd);
+}
+
+static void test_uptr_across_pages(void)
+{
+	int page_size = getpagesize();
+	struct value_type value = {};
+	struct task_ls_uptr *skel;
+	int err, task_fd, map_fd;
+	void *mem;
+
+	task_fd = sys_pidfd_open(getpid(), 0);
+	if (!ASSERT_OK_FD(task_fd, "task_fd"))
+		return;
+
+	mem = mmap(NULL, page_size * 2, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (!ASSERT_OK_PTR(mem, "mmap(page_size * 2)")) {
+		close(task_fd);
+		return;
+	}
+
+	skel = task_ls_uptr__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto out;
+
+	map_fd = bpf_map__fd(skel->maps.datamap);
+	value.udata = mem + page_size - offsetof(struct user_data, b);
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, 0);
+	if (!ASSERT_ERR(err, "update_elem(udata)"))
+		goto out;
+	ASSERT_EQ(errno, EOPNOTSUPP, "errno");
+
+	value.udata = mem + page_size - sizeof(struct user_data);
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, 0);
+	ASSERT_OK(err, "update_elem(udata)");
+
+out:
+	task_ls_uptr__destroy(skel);
+	close(task_fd);
+	munmap(mem, page_size * 2);
+}
+
+static void test_uptr_update_failure(void)
+{
+	struct value_lock_type value = {};
+	struct uptr_update_failure *skel;
+	int err, task_fd, map_fd;
+
+	task_fd = sys_pidfd_open(getpid(), 0);
+	if (!ASSERT_OK_FD(task_fd, "task_fd"))
+		return;
+
+	skel = uptr_update_failure__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		goto out;
+
+	map_fd = bpf_map__fd(skel->maps.datamap);
+
+	value.udata = &udata;
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, BPF_F_LOCK);
+	if (!ASSERT_ERR(err, "update_elem(udata, BPF_F_LOCK)"))
+		goto out;
+	ASSERT_EQ(errno, EOPNOTSUPP, "errno");
+
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, BPF_EXIST);
+	if (!ASSERT_ERR(err, "update_elem(udata, BPF_EXIST)"))
+		goto out;
+	ASSERT_EQ(errno, ENOENT, "errno");
+
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "update_elem(udata, BPF_NOEXIST)"))
+		goto out;
+
+	value.udata = &udata2;
+	err = bpf_map_update_elem(map_fd, &task_fd, &value, BPF_NOEXIST);
+	if (!ASSERT_ERR(err, "update_elem(udata2, BPF_NOEXIST)"))
+		goto out;
+	ASSERT_EQ(errno, EEXIST, "errno");
+
+out:
+	uptr_update_failure__destroy(skel);
+	close(task_fd);
+}
+
+static void test_uptr_map_failure(const char *map_name, int expected_errno)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, create_attr);
+	struct uptr_map_failure *skel;
+	struct bpf_map *map;
+	struct btf *btf;
+	int map_fd, err;
+
+	skel = uptr_map_failure__open();
+	if (!ASSERT_OK_PTR(skel, "uptr_map_failure__open"))
+		return;
+
+	map = bpf_object__find_map_by_name(skel->obj, map_name);
+	btf = bpf_object__btf(skel->obj);
+	err = btf__load_into_kernel(btf);
+	if (!ASSERT_OK(err, "btf__load_into_kernel"))
+		goto done;
+
+	create_attr.map_flags = bpf_map__map_flags(map);
+	create_attr.btf_fd = btf__fd(btf);
+	create_attr.btf_key_type_id = bpf_map__btf_key_type_id(map);
+	create_attr.btf_value_type_id = bpf_map__btf_value_type_id(map);
+	map_fd = bpf_map_create(bpf_map__type(map), map_name,
+				bpf_map__key_size(map), bpf_map__value_size(map),
+				0, &create_attr);
+	if (ASSERT_ERR_FD(map_fd, "map_create"))
+		ASSERT_EQ(errno, expected_errno, "errno");
+	else
+		close(map_fd);
+
+done:
+	uptr_map_failure__destroy(skel);
+}
+
+void test_task_local_storage(void)
+{
+	if (test__start_subtest("sys_enter_exit"))
+		test_sys_enter_exit();
+	if (test__start_subtest("exit_creds"))
+		test_exit_creds();
+	if (test__start_subtest("recursion"))
+		test_recursion();
+	if (test__start_subtest("nodeadlock"))
+		test_nodeadlock();
+	if (test__start_subtest("uptr_basic"))
+		test_uptr_basic();
+	if (test__start_subtest("uptr_across_pages"))
+		test_uptr_across_pages();
+	if (test__start_subtest("uptr_update_failure"))
+		test_uptr_update_failure();
+	if (test__start_subtest("uptr_map_failure_e2big")) {
+		if (getpagesize() == PAGE_SIZE)
+			test_uptr_map_failure("large_uptr_map", E2BIG);
+		else
+			test__skip();
+	}
+	if (test__start_subtest("uptr_map_failure_size0"))
+		test_uptr_map_failure("empty_uptr_map", EINVAL);
+	if (test__start_subtest("uptr_map_failure_kstruct"))
+		test_uptr_map_failure("kstruct_uptr_map", EINVAL);
+	RUN_TESTS(uptr_failure);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_pt_regs.c b/tools/testing/selftests/bpf/prog_tests/task_pt_regs.c
new file mode 100644
index 000000000000..f000734a3d1f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_pt_regs.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "test_task_pt_regs.skel.h"
+
+/* uprobe attach point */
+static noinline void trigger_func(void)
+{
+	asm volatile ("");
+}
+
+void test_task_pt_regs(void)
+{
+	struct test_task_pt_regs *skel;
+	struct bpf_link *uprobe_link;
+	ssize_t uprobe_offset;
+	bool match;
+
+	uprobe_offset = get_uprobe_offset(&trigger_func);
+	if (!ASSERT_GE(uprobe_offset, 0, "uprobe_offset"))
+		return;
+
+	skel = test_task_pt_regs__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+	if (!ASSERT_OK_PTR(skel->bss, "check_bss"))
+		goto cleanup;
+
+	uprobe_link = bpf_program__attach_uprobe(skel->progs.handle_uprobe,
+						 false /* retprobe */,
+						 0 /* self pid */,
+						 "/proc/self/exe",
+						 uprobe_offset);
+	if (!ASSERT_OK_PTR(uprobe_link, "attach_uprobe"))
+		goto cleanup;
+	skel->links.handle_uprobe = uprobe_link;
+
+	/* trigger & validate uprobe */
+	trigger_func();
+
+	if (!ASSERT_EQ(skel->bss->uprobe_res, 1, "check_uprobe_res"))
+		goto cleanup;
+
+	match = !memcmp(&skel->bss->current_regs, &skel->bss->ctx_regs,
+			sizeof(skel->bss->current_regs));
+	ASSERT_TRUE(match, "check_regs_match");
+
+cleanup:
+	test_task_pt_regs__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c b/tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c
new file mode 100644
index 000000000000..626d76fe43a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_under_cgroup.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Bytedance */
+
+#include <sys/syscall.h>
+#include <test_progs.h>
+#include <cgroup_helpers.h>
+#include "test_task_under_cgroup.skel.h"
+
+#define FOO	"/foo"
+
+void test_task_under_cgroup(void)
+{
+	struct test_task_under_cgroup *skel;
+	int ret, foo;
+	pid_t pid;
+
+	foo = test__join_cgroup(FOO);
+	if (!ASSERT_OK(foo < 0, "cgroup_join_foo"))
+		return;
+
+	skel = test_task_under_cgroup__open();
+	if (!ASSERT_OK_PTR(skel, "test_task_under_cgroup__open"))
+		goto cleanup;
+
+	skel->rodata->local_pid = getpid();
+	skel->bss->remote_pid = getpid();
+	skel->rodata->cgid = get_cgroup_id(FOO);
+
+	ret = test_task_under_cgroup__load(skel);
+	if (!ASSERT_OK(ret, "test_task_under_cgroup__load"))
+		goto cleanup;
+
+	/* First, attach the LSM program, and then it will be triggered when the
+	 * TP_BTF program is attached.
+	 */
+	skel->links.lsm_run = bpf_program__attach_lsm(skel->progs.lsm_run);
+	if (!ASSERT_OK_PTR(skel->links.lsm_run, "attach_lsm"))
+		goto cleanup;
+
+	skel->links.tp_btf_run = bpf_program__attach_trace(skel->progs.tp_btf_run);
+	if (!ASSERT_OK_PTR(skel->links.tp_btf_run, "attach_tp_btf"))
+		goto cleanup;
+
+	pid = fork();
+	if (pid == 0)
+		exit(0);
+
+	ret = (pid == -1);
+	if (ASSERT_OK(ret, "fork process"))
+		wait(NULL);
+
+	test_task_under_cgroup__detach(skel);
+
+	ASSERT_NEQ(skel->bss->remote_pid, skel->rodata->local_pid,
+		   "test task_under_cgroup");
+
+cleanup:
+	test_task_under_cgroup__destroy(skel);
+	close(foo);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/task_work_stress.c b/tools/testing/selftests/bpf/prog_tests/task_work_stress.c
new file mode 100644
index 000000000000..450d17d91a56
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/task_work_stress.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <string.h>
+#include <stdio.h>
+#include "task_work_stress.skel.h"
+#include <linux/bpf.h>
+#include <linux/perf_event.h>
+#include <sys/syscall.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stdatomic.h>
+
+struct test_data {
+	int prog_fd;
+	atomic_int exit;
+};
+
+void *runner(void *test_data)
+{
+	struct test_data *td = test_data;
+	int err = 0;
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+	while (!err && !atomic_load(&td->exit))
+		err = bpf_prog_test_run_opts(td->prog_fd, &opts);
+
+	return NULL;
+}
+
+static int get_env_int(const char *str, int def)
+{
+	const char *s = getenv(str);
+	char *end;
+	int retval;
+
+	if (!s || !*s)
+		return def;
+	errno = 0;
+	retval = strtol(s, &end, 10);
+	if (errno || *end || retval < 0)
+		return def;
+	return retval;
+}
+
+static void task_work_run(bool enable_delete)
+{
+	struct task_work_stress *skel;
+	struct bpf_program *scheduler, *deleter;
+	int nthreads = 16;
+	int test_time_s = get_env_int("BPF_TASK_WORK_TEST_TIME", 1);
+	pthread_t tid[nthreads], tid_del;
+	bool started[nthreads], started_del = false;
+	struct test_data td_sched = { .exit = 0 }, td_del = { .exit = 1 };
+	int i, err;
+
+	skel = task_work_stress__open();
+	if (!ASSERT_OK_PTR(skel, "task_work__open"))
+		return;
+
+	scheduler = bpf_object__find_program_by_name(skel->obj, "schedule_task_work");
+	bpf_program__set_autoload(scheduler, true);
+
+	deleter = bpf_object__find_program_by_name(skel->obj, "delete_task_work");
+	bpf_program__set_autoload(deleter, true);
+
+	err = task_work_stress__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	for (i = 0; i < nthreads; ++i)
+		started[i] = false;
+
+	td_sched.prog_fd = bpf_program__fd(scheduler);
+	for (i = 0; i < nthreads; ++i) {
+		if (pthread_create(&tid[i], NULL, runner, &td_sched) != 0) {
+			fprintf(stderr, "could not start thread");
+			goto cancel;
+		}
+		started[i] = true;
+	}
+
+	if (enable_delete)
+		atomic_store(&td_del.exit, 0);
+
+	td_del.prog_fd = bpf_program__fd(deleter);
+	if (pthread_create(&tid_del, NULL, runner, &td_del) != 0) {
+		fprintf(stderr, "could not start thread");
+		goto cancel;
+	}
+	started_del = true;
+
+	/* Run stress test for some time */
+	sleep(test_time_s);
+
+cancel:
+	atomic_store(&td_sched.exit, 1);
+	atomic_store(&td_del.exit, 1);
+	for (i = 0; i < nthreads; ++i) {
+		if (started[i])
+			pthread_join(tid[i], NULL);
+	}
+
+	if (started_del)
+		pthread_join(tid_del, NULL);
+
+	ASSERT_GT(skel->bss->callback_scheduled, 0, "work scheduled");
+	/* Some scheduling attempts should have failed due to contention */
+	ASSERT_GT(skel->bss->schedule_error, 0, "schedule error");
+
+	if (enable_delete) {
+		/* If delete thread is enabled, it has cancelled some callbacks */
+		ASSERT_GT(skel->bss->delete_success, 0, "delete success");
+		ASSERT_LT(skel->bss->callback_success, skel->bss->callback_scheduled, "callbacks");
+	} else {
+		/* Without delete thread number of scheduled callbacks is the same as fired */
+		ASSERT_EQ(skel->bss->callback_success, skel->bss->callback_scheduled, "callbacks");
+	}
+
+cleanup:
+	task_work_stress__destroy(skel);
+}
+
+void test_task_work_stress(void)
+{
+	if (test__start_subtest("no_delete"))
+		task_work_run(false);
+	if (test__start_subtest("with_delete"))
+		task_work_run(true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_bpf.c b/tools/testing/selftests/bpf/prog_tests/tc_bpf.c
new file mode 100644
index 000000000000..48b55539331e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_bpf.c
@@ -0,0 +1,429 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include <linux/pkt_cls.h>
+
+#include "cap_helpers.h"
+#include "test_tc_bpf.skel.h"
+
+#define LO_IFINDEX 1
+
+#define TEST_DECLARE_OPTS(__fd)                                                                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_h, .handle = 1);                                     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_p, .priority = 1);                                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_f, .prog_fd = __fd);                                 \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hp, .handle = 1, .priority = 1);                     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hf, .handle = 1, .prog_fd = __fd);                   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_pf, .priority = 1, .prog_fd = __fd);                 \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpf, .handle = 1, .priority = 1, .prog_fd = __fd);   \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpi, .handle = 1, .priority = 1, .prog_id = 42);     \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpr, .handle = 1, .priority = 1,                     \
+			    .flags = BPF_TC_F_REPLACE);                                            \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_hpfi, .handle = 1, .priority = 1, .prog_fd = __fd,   \
+			    .prog_id = 42);                                                        \
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts_prio_max, .handle = 1, .priority = UINT16_MAX + 1);
+
+static int test_tc_bpf_basic(const struct bpf_tc_hook *hook, int fd)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1, .prog_fd = fd);
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	int ret;
+
+	ret = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(ret, "bpf_prog_get_info_by_fd"))
+		return ret;
+
+	ret = bpf_tc_attach(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		return ret;
+
+	if (!ASSERT_EQ(opts.handle, 1, "handle set") ||
+	    !ASSERT_EQ(opts.priority, 1, "priority set") ||
+	    !ASSERT_EQ(opts.prog_id, info.id, "prog_id set"))
+		goto end;
+
+	opts.prog_id = 0;
+	opts.flags = BPF_TC_F_REPLACE;
+	ret = bpf_tc_attach(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach replace mode"))
+		goto end;
+
+	opts.flags = opts.prog_fd = opts.prog_id = 0;
+	ret = bpf_tc_query(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_query"))
+		goto end;
+
+	if (!ASSERT_EQ(opts.handle, 1, "handle set") ||
+	    !ASSERT_EQ(opts.priority, 1, "priority set") ||
+	    !ASSERT_EQ(opts.prog_id, info.id, "prog_id set"))
+		goto end;
+
+end:
+	opts.flags = opts.prog_fd = opts.prog_id = 0;
+	ret = bpf_tc_detach(hook, &opts);
+	ASSERT_OK(ret, "bpf_tc_detach");
+	return ret;
+}
+
+static int test_tc_bpf_api(struct bpf_tc_hook *hook, int fd)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, attach_opts, .handle = 1, .priority = 1, .prog_fd = fd);
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, inv_hook, .attach_point = BPF_TC_INGRESS);
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1);
+	int ret;
+
+	ret = bpf_tc_hook_create(NULL);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook = NULL"))
+		return -EINVAL;
+
+	/* hook ifindex = 0 */
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook ifindex == 0"))
+		return -EINVAL;
+	attach_opts.prog_id = 0;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook ifindex == 0"))
+		return -EINVAL;
+
+	/* hook ifindex < 0 */
+	inv_hook.ifindex = -1;
+
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook ifindex < 0"))
+		return -EINVAL;
+	attach_opts.prog_id = 0;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook ifindex < 0"))
+		return -EINVAL;
+
+	inv_hook.ifindex = LO_IFINDEX;
+
+	/* hook.attach_point invalid */
+	inv_hook.attach_point = 0xabcd;
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook.attach_point"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook.attach_point"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_INGRESS;
+
+	/* hook.attach_point valid, but parent invalid */
+	inv_hook.parent = TC_H_MAKE(1UL << 16, 10);
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_create invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_hook_destroy invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook parent"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_CUSTOM;
+	inv_hook.parent = 0;
+	/* These return EOPNOTSUPP instead of EINVAL as parent is checked after
+	 * attach_point of the hook.
+	 */
+	ret = bpf_tc_hook_create(&inv_hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_create invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_hook_destroy(&inv_hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_destroy invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_attach(&inv_hook, &attach_opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_detach(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook parent"))
+		return -EINVAL;
+
+	ret = bpf_tc_query(&inv_hook, &opts);
+	if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook parent"))
+		return -EINVAL;
+
+	inv_hook.attach_point = BPF_TC_INGRESS;
+
+	/* detach */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_detach(NULL, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid opts = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpr);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid flags set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpf);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid prog_fd set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_p);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid handle unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_h);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid priority unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_detach(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_detach invalid priority > UINT16_MAX"))
+			return -EINVAL;
+	}
+
+	/* query */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_query(NULL, &opts);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid opts = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpr);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid flags set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpf);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid prog_fd set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_p);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid handle unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_h);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid priority unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_query(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query invalid priority > UINT16_MAX"))
+			return -EINVAL;
+
+		/* when chain is not present, kernel returns -EINVAL */
+		ret = bpf_tc_query(hook, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_query valid handle, priority set"))
+			return -EINVAL;
+	}
+
+	/* attach */
+	{
+		TEST_DECLARE_OPTS(fd);
+
+		ret = bpf_tc_attach(NULL, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid hook = NULL"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid opts = NULL"))
+			return -EINVAL;
+
+		opts_hp.flags = 42;
+		ret = bpf_tc_attach(hook, &opts_hp);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid flags"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, NULL);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid prog_fd unset"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_hpi);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid prog_id set"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_pf);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid handle unset"))
+			return -EINVAL;
+		opts_pf.prog_fd = opts_pf.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_pf), "bpf_tc_detach");
+
+		ret = bpf_tc_attach(hook, &opts_hf);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid priority unset"))
+			return -EINVAL;
+		opts_hf.prog_fd = opts_hf.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_hf), "bpf_tc_detach");
+
+		ret = bpf_tc_attach(hook, &opts_prio_max);
+		if (!ASSERT_EQ(ret, -EINVAL, "bpf_tc_attach invalid priority > UINT16_MAX"))
+			return -EINVAL;
+
+		ret = bpf_tc_attach(hook, &opts_f);
+		if (!ASSERT_OK(ret, "bpf_tc_attach valid both handle and priority unset"))
+			return -EINVAL;
+		opts_f.prog_fd = opts_f.prog_id = 0;
+		ASSERT_OK(bpf_tc_detach(hook, &opts_f), "bpf_tc_detach");
+	}
+
+	return 0;
+}
+
+void tc_bpf_root(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, hook, .ifindex = LO_IFINDEX,
+			    .attach_point = BPF_TC_INGRESS);
+	struct test_tc_bpf *skel = NULL;
+	bool hook_created = false;
+	int cls_fd, ret;
+
+	skel = test_tc_bpf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tc_bpf__open_and_load"))
+		return;
+
+	cls_fd = bpf_program__fd(skel->progs.cls);
+
+	ret = bpf_tc_hook_create(&hook);
+	if (ret == 0)
+		hook_created = true;
+
+	ret = ret == -EEXIST ? 0 : ret;
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create(BPF_TC_INGRESS)"))
+		goto end;
+
+	hook.attach_point = BPF_TC_CUSTOM;
+	hook.parent = TC_H_MAKE(TC_H_CLSACT, TC_H_MIN_INGRESS);
+	ret = bpf_tc_hook_create(&hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_create invalid hook.attach_point"))
+		goto end;
+
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal ingress"))
+		goto end;
+
+	ret = bpf_tc_hook_destroy(&hook);
+	if (!ASSERT_EQ(ret, -EOPNOTSUPP, "bpf_tc_hook_destroy invalid hook.attach_point"))
+		goto end;
+
+	hook.attach_point = BPF_TC_INGRESS;
+	hook.parent = 0;
+	bpf_tc_hook_destroy(&hook);
+
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal ingress"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+	hook.attach_point = BPF_TC_EGRESS;
+	ret = test_tc_bpf_basic(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_internal egress"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+	ret = test_tc_bpf_api(&hook, cls_fd);
+	if (!ASSERT_OK(ret, "test_tc_bpf_api"))
+		goto end;
+
+	bpf_tc_hook_destroy(&hook);
+
+end:
+	if (hook_created) {
+		hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&hook);
+	}
+	test_tc_bpf__destroy(skel);
+}
+
+void tc_bpf_non_root(void)
+{
+	struct test_tc_bpf *skel = NULL;
+	__u64 caps = 0;
+	int ret;
+
+	/* In case CAP_BPF and CAP_PERFMON is not set */
+	ret = cap_enable_effective(1ULL << CAP_BPF | 1ULL << CAP_NET_ADMIN, &caps);
+	if (!ASSERT_OK(ret, "set_cap_bpf_cap_net_admin"))
+		return;
+	ret = cap_disable_effective(1ULL << CAP_SYS_ADMIN | 1ULL << CAP_PERFMON, NULL);
+	if (!ASSERT_OK(ret, "disable_cap_sys_admin"))
+		goto restore_cap;
+
+	skel = test_tc_bpf__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tc_bpf__open_and_load"))
+		goto restore_cap;
+
+	test_tc_bpf__destroy(skel);
+
+restore_cap:
+	if (caps)
+		cap_enable_effective(caps, NULL);
+}
+
+void test_tc_bpf(void)
+{
+	if (test__start_subtest("tc_bpf_root"))
+		tc_bpf_root();
+	if (test__start_subtest("tc_bpf_non_root"))
+		tc_bpf_non_root();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_change_tail.c b/tools/testing/selftests/bpf/prog_tests/tc_change_tail.c
new file mode 100644
index 000000000000..74752233e779
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_change_tail.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <error.h>
+#include <test_progs.h>
+#include <linux/pkt_cls.h>
+
+#include "test_tc_change_tail.skel.h"
+#include "socket_helpers.h"
+
+#define LO_IFINDEX 1
+
+void test_tc_change_tail(void)
+{
+	LIBBPF_OPTS(bpf_tcx_opts, tcx_opts);
+	struct test_tc_change_tail *skel = NULL;
+	struct bpf_link *link;
+	int c1, p1;
+	char buf[2];
+	int ret;
+
+	skel = test_tc_change_tail__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tc_change_tail__open_and_load"))
+		return;
+
+	link = bpf_program__attach_tcx(skel->progs.change_tail, LO_IFINDEX,
+				     &tcx_opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_tcx"))
+		goto destroy;
+
+	skel->links.change_tail = link;
+	ret = create_pair(AF_INET, SOCK_DGRAM, &c1, &p1);
+	if (!ASSERT_OK(ret, "create_pair"))
+		goto destroy;
+
+	ret = xsend(p1, "Tr", 2, 0);
+	ASSERT_EQ(ret, 2, "xsend(p1)");
+	ret = recv(c1, buf, 2, 0);
+	ASSERT_EQ(ret, 2, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
+
+	ret = xsend(p1, "G", 1, 0);
+	ASSERT_EQ(ret, 1, "xsend(p1)");
+	ret = recv(c1, buf, 2, 0);
+	ASSERT_EQ(ret, 1, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, 0, "change_tail_ret");
+
+	ret = xsend(p1, "E", 1, 0);
+	ASSERT_EQ(ret, 1, "xsend(p1)");
+	ret = recv(c1, buf, 1, 0);
+	ASSERT_EQ(ret, 1, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, -EINVAL, "change_tail_ret");
+
+	ret = xsend(p1, "Z", 1, 0);
+	ASSERT_EQ(ret, 1, "xsend(p1)");
+	ret = recv(c1, buf, 1, 0);
+	ASSERT_EQ(ret, 1, "recv(c1)");
+	ASSERT_EQ(skel->data->change_tail_ret, -EINVAL, "change_tail_ret");
+
+	close(c1);
+	close(p1);
+destroy:
+	test_tc_change_tail__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_helpers.h b/tools/testing/selftests/bpf/prog_tests/tc_helpers.h
new file mode 100644
index 000000000000..d52a62af77bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_helpers.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2023 Isovalent */
+#ifndef TC_HELPERS
+#define TC_HELPERS
+#include <test_progs.h>
+
+#ifndef loopback
+# define loopback 1
+#endif
+
+static inline __u32 ifindex_from_link_fd(int fd)
+{
+	struct bpf_link_info link_info = {};
+	__u32 link_info_len = sizeof(link_info);
+	int err;
+
+	err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len);
+	if (!ASSERT_OK(err, "id_from_link_fd"))
+		return 0;
+
+	return link_info.tcx.ifindex;
+}
+
+static inline void __assert_mprog_count(int target, int expected, int ifindex)
+{
+	__u32 count = 0, attach_flags = 0;
+	int err;
+
+	err = bpf_prog_query(ifindex, target, 0, &attach_flags,
+			     NULL, &count);
+	ASSERT_EQ(count, expected, "count");
+	ASSERT_EQ(err, 0, "prog_query");
+}
+
+static inline void assert_mprog_count(int target, int expected)
+{
+	__assert_mprog_count(target, expected, loopback);
+}
+
+static inline void assert_mprog_count_ifindex(int ifindex, int target, int expected)
+{
+	__assert_mprog_count(target, expected, ifindex);
+}
+
+static inline void tc_skel_reset_all_seen(struct test_tc_link *skel)
+{
+	memset(skel->bss, 0, sizeof(*skel->bss));
+}
+
+#endif /* TC_HELPERS */
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_links.c b/tools/testing/selftests/bpf/prog_tests/tc_links.c
new file mode 100644
index 000000000000..2186a24e7d8a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_links.c
@@ -0,0 +1,1962 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <uapi/linux/if_link.h>
+#include <uapi/linux/pkt_sched.h>
+#include <net/if.h>
+#include <test_progs.h>
+
+#define loopback 1
+#define ping_cmd "ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+#include "test_tc_link.skel.h"
+
+#include "netlink_helpers.h"
+#include "tc_helpers.h"
+
+void test_ns_tc_links_basic(void)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[2], link_ids[2];
+	__u32 pid1, pid2, lid1, lid2;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count(BPF_TCX_INGRESS, 0);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(BPF_TCX_INGRESS, 1);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, BPF_TCX_INGRESS, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+	ASSERT_NEQ(lid1, lid2, "link_ids_1_2");
+
+	assert_mprog_count(BPF_TCX_INGRESS, 1);
+	assert_mprog_count(BPF_TCX_EGRESS, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, BPF_TCX_EGRESS, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count(BPF_TCX_INGRESS, 0);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+}
+
+static void test_tc_links_before_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[5], link_ids[5];
+	__u32 pid1, pid2, pid3, pid4;
+	__u32 lid1, lid2, lid3, lid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3));
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_LINK,
+		.relative_id = lid1,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4));
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid4, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid4, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], pid3, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], lid3, "link_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], pid2, "prog_ids[3]");
+	ASSERT_EQ(optq.link_ids[3], lid2, "link_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids[4], 0, "link_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_before(void)
+{
+	test_tc_links_before_target(BPF_TCX_INGRESS);
+	test_tc_links_before_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_after_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[5], link_ids[5];
+	__u32 pid1, pid2, pid3, pid4;
+	__u32 lid1, lid2, lid3, lid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3));
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER | BPF_F_LINK,
+		.relative_fd = bpf_link__fd(skel->links.tc2),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4));
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid3, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid3, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], pid2, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], lid2, "link_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], pid4, "prog_ids[3]");
+	ASSERT_EQ(optq.link_ids[3], lid4, "link_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids[4], 0, "link_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_after(void)
+{
+	test_tc_links_after_target(BPF_TCX_INGRESS);
+	test_tc_links_after_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_revision_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[3], link_ids[3];
+	__u32 pid1, pid2, lid1, lid2;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count(target, 0);
+
+	optl.expected_revision = 1;
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	optl.expected_revision = 1;
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 1);
+
+	optl.expected_revision = 2;
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_revision(void)
+{
+	test_tc_links_revision_target(BPF_TCX_INGRESS);
+	test_tc_links_revision_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_chain_classic(int target, bool chain_tc_old)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback);
+	bool hook_created = false, tc_attached = false;
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, pid3;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	if (chain_tc_old) {
+		tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+				       BPF_TC_INGRESS : BPF_TC_EGRESS;
+		err = bpf_tc_hook_create(&tc_hook);
+		if (err == 0)
+			hook_created = true;
+		err = err == -EEXIST ? 0 : err;
+		if (!ASSERT_OK(err, "bpf_tc_hook_create"))
+			goto cleanup;
+
+		tc_opts.prog_fd = bpf_program__fd(skel->progs.tc3);
+		err = bpf_tc_attach(&tc_hook, &tc_opts);
+		if (!ASSERT_OK(err, "bpf_tc_attach"))
+			goto cleanup;
+		tc_attached = true;
+	}
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	assert_mprog_count(target, 2);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+
+	err = bpf_link__detach(skel->links.tc2);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+cleanup:
+	if (tc_attached) {
+		tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+		err = bpf_tc_detach(&tc_hook, &tc_opts);
+		ASSERT_OK(err, "bpf_tc_detach");
+	}
+	if (hook_created) {
+		tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&tc_hook);
+	}
+	assert_mprog_count(target, 1);
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_chain_classic(void)
+{
+	test_tc_chain_classic(BPF_TCX_INGRESS, false);
+	test_tc_chain_classic(BPF_TCX_EGRESS, false);
+	test_tc_chain_classic(BPF_TCX_INGRESS, true);
+	test_tc_chain_classic(BPF_TCX_EGRESS, true);
+}
+
+static void test_tc_links_replace_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, pid3, lid1, lid2;
+	__u32 prog_ids[4], link_ids[4];
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	optl.expected_revision = 1;
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+		.relative_id = pid1,
+		.expected_revision = 2,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_REPLACE,
+		.relative_fd = bpf_program__fd(skel->progs.tc2),
+		.expected_revision = 3,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_REPLACE | BPF_F_LINK,
+		.relative_fd = bpf_link__fd(skel->links.tc2),
+		.expected_revision = 3,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_REPLACE | BPF_F_LINK | BPF_F_AFTER,
+		.relative_id = lid2,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 2);
+
+	err = bpf_link__update_program(skel->links.tc2, skel->progs.tc3);
+	if (!ASSERT_OK(err, "link_update"))
+		goto cleanup;
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 4, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid3, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+
+	err = bpf_link__detach(skel->links.tc2);
+	if (!ASSERT_OK(err, "link_detach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+
+	err = bpf_link__update_program(skel->links.tc1, skel->progs.tc1);
+	if (!ASSERT_OK(err, "link_update_self"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_replace(void)
+{
+	test_tc_links_replace_target(BPF_TCX_INGRESS);
+	test_tc_links_replace_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_invalid_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, lid1;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count(target, 0);
+
+	optl.flags = BPF_F_BEFORE | BPF_F_AFTER;
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_ID,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER | BPF_F_ID,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_ID,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_LINK,
+		.relative_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_LINK,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.relative_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_AFTER,
+		.relative_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_ID,
+		.relative_id = pid2,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_ID,
+		.relative_id = 42,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_LINK,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, 0, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER | BPF_F_LINK,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optl);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER | BPF_F_LINK,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID,
+		.relative_id = ~0,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID,
+		.relative_id = lid1,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_ID,
+		.relative_id = pid1,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE | BPF_F_LINK | BPF_F_ID,
+		.relative_id = lid1,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	assert_mprog_count(target, 2);
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_invalid(void)
+{
+	test_tc_links_invalid_target(BPF_TCX_INGRESS);
+	test_tc_links_invalid_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_prepend_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[5], link_ids[5];
+	__u32 pid1, pid2, pid3, pid4;
+	__u32 lid1, lid2, lid3, lid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3));
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4));
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid4, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid4, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid3, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid3, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], pid2, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], lid2, "link_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], pid1, "prog_ids[3]");
+	ASSERT_EQ(optq.link_ids[3], lid1, "link_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids[4], 0, "link_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_prepend(void)
+{
+	test_tc_links_prepend_target(BPF_TCX_INGRESS);
+	test_tc_links_prepend_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_append_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 prog_ids[5], link_ids[5];
+	__u32 pid1, pid2, pid3, pid4;
+	__u32 lid1, lid2, lid3, lid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	lid3 = id_from_link_fd(bpf_link__fd(skel->links.tc3));
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_AFTER,
+	);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4));
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], pid3, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], lid3, "link_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], pid4, "prog_ids[3]");
+	ASSERT_EQ(optq.link_ids[3], lid4, "link_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids[4], 0, "link_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_append(void)
+{
+	test_tc_links_append_target(BPF_TCX_INGRESS);
+	test_tc_links_append_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_dev_cleanup_target(int target)
+{
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 pid1, pid2, pid3, pid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	ASSERT_OK(system("ip link add dev tcx_opts1 type veth peer name tcx_opts2"), "add veth");
+	ifindex = if_nametoindex("tcx_opts1");
+	ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 3);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 4);
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc1)), 0, "tc1_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc2)), 0, "tc2_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc3)), 0, "tc3_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc4)), 0, "tc4_ifindex");
+
+	test_tc_link__destroy(skel);
+	return;
+cleanup:
+	test_tc_link__destroy(skel);
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+}
+
+void test_ns_tc_links_dev_cleanup(void)
+{
+	test_tc_links_dev_cleanup_target(BPF_TCX_INGRESS);
+	test_tc_links_dev_cleanup_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_chain_mixed(int target)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	__u32 pid1, pid2, pid3;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc5, target),
+		  0, "tc5_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc6, target),
+		  0, "tc6_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc5));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc6));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+			       BPF_TC_INGRESS : BPF_TC_EGRESS;
+	err = bpf_tc_hook_create(&tc_hook);
+	err = err == -EEXIST ? 0 : err;
+	if (!ASSERT_OK(err, "bpf_tc_hook_create"))
+		goto cleanup;
+
+	tc_opts.prog_fd = bpf_program__fd(skel->progs.tc5);
+	err = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(err, "bpf_tc_attach"))
+		goto cleanup;
+
+	link = bpf_program__attach_tcx(skel->progs.tc6, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc6 = link;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, false, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, true, "seen_tc6");
+
+	err = bpf_link__update_program(skel->links.tc6, skel->progs.tc4);
+	if (!ASSERT_OK(err, "link_update"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6");
+
+	err = bpf_link__detach(skel->links.tc6);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 0);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6");
+
+cleanup:
+	tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+	err = bpf_tc_detach(&tc_hook, &tc_opts);
+	ASSERT_OK(err, "bpf_tc_detach");
+
+	tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+	bpf_tc_hook_destroy(&tc_hook);
+
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_links_chain_mixed(void)
+{
+	test_tc_chain_mixed(BPF_TCX_INGRESS);
+	test_tc_chain_mixed(BPF_TCX_EGRESS);
+}
+
+static void test_tc_links_ingress(int target, bool chain_tc_old,
+				  bool tcx_teardown_first)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts,
+		.handle		= 1,
+		.priority	= 1,
+	);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook,
+		.ifindex	= loopback,
+		.attach_point	= BPF_TC_CUSTOM,
+		.parent		= TC_H_INGRESS,
+	);
+	bool hook_created = false, tc_attached = false;
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, pid3;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	if (chain_tc_old) {
+		ASSERT_OK(system("tc qdisc add dev lo ingress"), "add_ingress");
+		hook_created = true;
+
+		tc_opts.prog_fd = bpf_program__fd(skel->progs.tc3);
+		err = bpf_tc_attach(&tc_hook, &tc_opts);
+		if (!ASSERT_OK(err, "bpf_tc_attach"))
+			goto cleanup;
+		tc_attached = true;
+	}
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	assert_mprog_count(target, 2);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+
+	err = bpf_link__detach(skel->links.tc2);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+cleanup:
+	if (tc_attached) {
+		tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+		err = bpf_tc_detach(&tc_hook, &tc_opts);
+		ASSERT_OK(err, "bpf_tc_detach");
+	}
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+	assert_mprog_count(target, 1);
+	if (hook_created && tcx_teardown_first)
+		ASSERT_OK(system("tc qdisc del dev lo ingress"), "del_ingress");
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+	test_tc_link__destroy(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+	if (hook_created && !tcx_teardown_first)
+		ASSERT_OK(system("tc qdisc del dev lo ingress"), "del_ingress");
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_links_ingress(void)
+{
+	test_tc_links_ingress(BPF_TCX_INGRESS, true, true);
+	test_tc_links_ingress(BPF_TCX_INGRESS, true, false);
+	test_tc_links_ingress(BPF_TCX_INGRESS, false, false);
+}
+
+struct qdisc_req {
+	struct nlmsghdr  n;
+	struct tcmsg     t;
+	char             buf[1024];
+};
+
+static int qdisc_replace(int ifindex, const char *kind, bool block)
+{
+	struct rtnl_handle rth = { .fd = -1 };
+	struct qdisc_req req;
+	int err;
+
+	err = rtnl_open(&rth, 0);
+	if (!ASSERT_OK(err, "open_rtnetlink"))
+		return err;
+
+	memset(&req, 0, sizeof(req));
+	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct tcmsg));
+	req.n.nlmsg_flags = NLM_F_CREATE | NLM_F_REPLACE | NLM_F_REQUEST;
+	req.n.nlmsg_type = RTM_NEWQDISC;
+	req.t.tcm_family = AF_UNSPEC;
+	req.t.tcm_ifindex = ifindex;
+	req.t.tcm_parent = 0xfffffff1;
+
+	addattr_l(&req.n, sizeof(req), TCA_KIND, kind, strlen(kind) + 1);
+	if (block)
+		addattr32(&req.n, sizeof(req), TCA_INGRESS_BLOCK, 1);
+
+	err = rtnl_talk(&rth, &req.n, NULL);
+	ASSERT_OK(err, "talk_rtnetlink");
+	rtnl_close(&rth);
+	return err;
+}
+
+void test_ns_tc_links_dev_chain0(void)
+{
+	int err, ifindex;
+
+	ASSERT_OK(system("ip link add dev foo type veth peer name bar"), "add veth");
+	ifindex = if_nametoindex("foo");
+	ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
+	err = qdisc_replace(ifindex, "ingress", true);
+	if (!ASSERT_OK(err, "attaching ingress"))
+		goto cleanup;
+	ASSERT_OK(system("tc filter add block 1 matchall action skbmod swap mac"), "add block");
+	err = qdisc_replace(ifindex, "clsact", false);
+	if (!ASSERT_OK(err, "attaching clsact"))
+		goto cleanup;
+	/* Heuristic: kern_sync_rcu() alone does not work; a wait-time of ~5s
+	 * triggered the issue without the fix reliably 100% of the time.
+	 */
+	sleep(5);
+	ASSERT_OK(system("tc filter add dev foo ingress matchall action skbmod swap mac"), "add filter");
+cleanup:
+	ASSERT_OK(system("ip link del dev foo"), "del veth");
+	ASSERT_EQ(if_nametoindex("foo"), 0, "foo removed");
+	ASSERT_EQ(if_nametoindex("bar"), 0, "bar removed");
+}
+
+static void test_tc_links_dev_mixed(int target)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, pid3, pid4;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	ASSERT_OK(system("ip link add dev tcx_opts1 type veth peer name tcx_opts2"), "add veth");
+	ifindex = if_nametoindex("tcx_opts1");
+	ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+
+	link = bpf_program__attach_tcx(skel->progs.tc3, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc3 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 3);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc4 = link;
+
+	assert_mprog_count_ifindex(ifindex, target, 4);
+
+	tc_hook.ifindex = ifindex;
+	tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+			       BPF_TC_INGRESS : BPF_TC_EGRESS;
+
+	err = bpf_tc_hook_create(&tc_hook);
+	err = err == -EEXIST ? 0 : err;
+	if (!ASSERT_OK(err, "bpf_tc_hook_create"))
+		goto cleanup;
+
+	tc_opts.prog_fd = bpf_program__fd(skel->progs.tc5);
+	err = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(err, "bpf_tc_attach"))
+		goto cleanup;
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc1)), 0, "tc1_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc2)), 0, "tc2_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc3)), 0, "tc3_ifindex");
+	ASSERT_EQ(ifindex_from_link_fd(bpf_link__fd(skel->links.tc4)), 0, "tc4_ifindex");
+
+	test_tc_link__destroy(skel);
+	return;
+cleanup:
+	test_tc_link__destroy(skel);
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+}
+
+void test_ns_tc_links_dev_mixed(void)
+{
+	test_tc_links_dev_mixed(BPF_TCX_INGRESS);
+	test_tc_links_dev_mixed(BPF_TCX_EGRESS);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_netkit.c b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
new file mode 100644
index 000000000000..2461d183dee5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_netkit.c
@@ -0,0 +1,870 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <uapi/linux/if_link.h>
+#include <net/if.h>
+#include <test_progs.h>
+
+#define netkit_peer "nk0"
+#define netkit_name "nk1"
+
+#define ping_addr_neigh		0x0a000002 /* 10.0.0.2 */
+#define ping_addr_noneigh	0x0a000003 /* 10.0.0.3 */
+
+#include "test_tc_link.skel.h"
+#include "netlink_helpers.h"
+#include "tc_helpers.h"
+
+#define NETKIT_HEADROOM	32
+#define NETKIT_TAILROOM	8
+
+#define MARK		42
+#define PRIO		0xeb9f
+#define ICMP_ECHO	8
+
+#define FLAG_ADJUST_ROOM (1 << 0)
+#define FLAG_SAME_NETNS  (1 << 1)
+
+struct icmphdr {
+	__u8		type;
+	__u8		code;
+	__sum16		checksum;
+	struct {
+		__be16	id;
+		__be16	sequence;
+	} echo;
+};
+
+struct iplink_req {
+	struct nlmsghdr  n;
+	struct ifinfomsg i;
+	char             buf[1024];
+};
+
+static int create_netkit(int mode, int policy, int peer_policy, int *ifindex,
+			 int scrub, int peer_scrub, __u32 flags)
+{
+	struct rtnl_handle rth = { .fd = -1 };
+	struct iplink_req req = {};
+	struct rtattr *linkinfo, *data;
+	const char *type = "netkit";
+	int err;
+
+	err = rtnl_open(&rth, 0);
+	if (!ASSERT_OK(err, "open_rtnetlink"))
+		return err;
+
+	memset(&req, 0, sizeof(req));
+	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+	req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
+	req.n.nlmsg_type = RTM_NEWLINK;
+	req.i.ifi_family = AF_UNSPEC;
+
+	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, netkit_name,
+		  strlen(netkit_name));
+	linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
+	addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, strlen(type));
+	data = addattr_nest(&req.n, sizeof(req), IFLA_INFO_DATA);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_POLICY, policy);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_PEER_POLICY, peer_policy);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_SCRUB, scrub);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_PEER_SCRUB, peer_scrub);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_MODE, mode);
+	if (flags & FLAG_ADJUST_ROOM) {
+		addattr16(&req.n, sizeof(req), IFLA_NETKIT_HEADROOM, NETKIT_HEADROOM);
+		addattr16(&req.n, sizeof(req), IFLA_NETKIT_TAILROOM, NETKIT_TAILROOM);
+	}
+	addattr_nest_end(&req.n, data);
+	addattr_nest_end(&req.n, linkinfo);
+
+	err = rtnl_talk(&rth, &req.n, NULL);
+	ASSERT_OK(err, "talk_rtnetlink");
+	rtnl_close(&rth);
+	*ifindex = if_nametoindex(netkit_name);
+
+	ASSERT_GT(*ifindex, 0, "retrieve_ifindex");
+	ASSERT_OK(system("ip netns add foo"), "create netns");
+	ASSERT_OK(system("ip link set dev " netkit_name " up"),
+			 "up primary");
+	ASSERT_OK(system("ip addr add dev " netkit_name " 10.0.0.1/24"),
+			 "addr primary");
+
+	if (mode == NETKIT_L3) {
+		ASSERT_EQ(system("ip link set dev " netkit_name
+				 " addr ee:ff:bb:cc:aa:dd 2> /dev/null"), 512,
+				 "set hwaddress");
+	} else {
+		ASSERT_OK(system("ip link set dev " netkit_name
+				 " addr ee:ff:bb:cc:aa:dd"),
+				 "set hwaddress");
+	}
+	if (flags & FLAG_SAME_NETNS) {
+		ASSERT_OK(system("ip link set dev " netkit_peer " up"),
+				 "up peer");
+		ASSERT_OK(system("ip addr add dev " netkit_peer " 10.0.0.2/24"),
+				 "addr peer");
+	} else {
+		ASSERT_OK(system("ip link set " netkit_peer " netns foo"),
+				 "move peer");
+		ASSERT_OK(system("ip netns exec foo ip link set dev "
+				 netkit_peer " up"), "up peer");
+		ASSERT_OK(system("ip netns exec foo ip addr add dev "
+				 netkit_peer " 10.0.0.2/24"), "addr peer");
+	}
+	return err;
+}
+
+static void move_netkit(void)
+{
+	ASSERT_OK(system("ip link set " netkit_peer " netns foo"),
+			 "move peer");
+	ASSERT_OK(system("ip netns exec foo ip link set dev "
+			 netkit_peer " up"), "up peer");
+	ASSERT_OK(system("ip netns exec foo ip addr add dev "
+			 netkit_peer " 10.0.0.2/24"), "addr peer");
+}
+
+static void destroy_netkit(void)
+{
+	ASSERT_OK(system("ip link del dev " netkit_name), "del primary");
+	ASSERT_OK(system("ip netns del foo"), "delete netns");
+	ASSERT_EQ(if_nametoindex(netkit_name), 0, netkit_name "_ifindex");
+}
+
+static int __send_icmp(__u32 dest)
+{
+	int sock, ret, mark = MARK, prio = PRIO;
+	struct sockaddr_in addr;
+	struct icmphdr icmp;
+
+	ret = write_sysctl("/proc/sys/net/ipv4/ping_group_range", "0 0");
+	if (!ASSERT_OK(ret, "write_sysctl(net.ipv4.ping_group_range)"))
+		return ret;
+
+	sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_ICMP);
+	if (!ASSERT_GE(sock, 0, "icmp_socket"))
+		return -errno;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE,
+			 netkit_name, strlen(netkit_name) + 1);
+	if (!ASSERT_OK(ret, "setsockopt(SO_BINDTODEVICE)"))
+		goto out;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_MARK, &mark, sizeof(mark));
+	if (!ASSERT_OK(ret, "setsockopt(SO_MARK)"))
+		goto out;
+
+	ret = setsockopt(sock, SOL_SOCKET, SO_PRIORITY,
+			 &prio, sizeof(prio));
+	if (!ASSERT_OK(ret, "setsockopt(SO_PRIORITY)"))
+		goto out;
+
+	memset(&addr, 0, sizeof(addr));
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(dest);
+
+	memset(&icmp, 0, sizeof(icmp));
+	icmp.type = ICMP_ECHO;
+	icmp.echo.id = 1234;
+	icmp.echo.sequence = 1;
+
+	ret = sendto(sock, &icmp, sizeof(icmp), 0,
+		     (struct sockaddr *)&addr, sizeof(addr));
+	if (!ASSERT_GE(ret, 0, "icmp_sendto"))
+		ret = -errno;
+	else
+		ret = 0;
+out:
+	close(sock);
+	return ret;
+}
+
+static int send_icmp(void)
+{
+	return __send_icmp(ping_addr_neigh);
+}
+
+void serial_test_tc_netkit_basic(void)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	__u32 prog_ids[2], link_ids[2];
+	__u32 pid1, pid2, lid1, lid2;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	err = create_netkit(NETKIT_L2, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, 0);
+	if (err)
+		return;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1,
+		  BPF_NETKIT_PRIMARY), 0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2,
+		  BPF_NETKIT_PEER), 0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_netkit(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, BPF_NETKIT_PRIMARY, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_netkit(skel->progs.tc2, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+	ASSERT_NEQ(lid1, lid2, "link_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, BPF_NETKIT_PEER, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+	destroy_netkit();
+}
+
+static void serial_test_tc_netkit_multi_links_target(int mode, int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	__u32 prog_ids[3], link_ids[3];
+	__u32 pid1, pid2, lid1, lid2;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, 0);
+	if (err)
+		return;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1,
+		  target), 0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2,
+		  target), 0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, false, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_netkit(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, true, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	LIBBPF_OPTS_RESET(optl,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	link = bpf_program__attach_netkit(skel->progs.tc2, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+	ASSERT_NEQ(lid1, lid2, "link_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid2, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], lid1, "link_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(optq.link_ids[2], 0, "link_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, true, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_multi_links(void)
+{
+	serial_test_tc_netkit_multi_links_target(NETKIT_L2, BPF_NETKIT_PRIMARY);
+	serial_test_tc_netkit_multi_links_target(NETKIT_L3, BPF_NETKIT_PRIMARY);
+	serial_test_tc_netkit_multi_links_target(NETKIT_L2, BPF_NETKIT_PEER);
+	serial_test_tc_netkit_multi_links_target(NETKIT_L3, BPF_NETKIT_PEER);
+}
+
+static void serial_test_tc_netkit_multi_opts_target(int mode, int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 pid1, pid2, fd1, fd2;
+	__u32 prog_ids[3];
+	struct test_tc_link *skel;
+	int err, ifindex;
+
+	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, 0);
+	if (err)
+		return;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+
+	pid1 = id_from_prog_fd(fd1);
+	pid2 = id_from_prog_fd(fd2);
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, false, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	err = bpf_prog_attach_opts(fd1, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_fd1;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, true, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd2, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_fd1;
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_fd2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, true, "seen_eth");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+
+cleanup_fd2:
+	err = bpf_prog_detach_opts(fd2, ifindex, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count_ifindex(ifindex, target, 1);
+cleanup_fd1:
+	err = bpf_prog_detach_opts(fd1, ifindex, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count_ifindex(ifindex, target, 0);
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_multi_opts(void)
+{
+	serial_test_tc_netkit_multi_opts_target(NETKIT_L2, BPF_NETKIT_PRIMARY);
+	serial_test_tc_netkit_multi_opts_target(NETKIT_L3, BPF_NETKIT_PRIMARY);
+	serial_test_tc_netkit_multi_opts_target(NETKIT_L2, BPF_NETKIT_PEER);
+	serial_test_tc_netkit_multi_opts_target(NETKIT_L3, BPF_NETKIT_PEER);
+}
+
+void serial_test_tc_netkit_device(void)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	__u32 prog_ids[2], link_ids[2];
+	__u32 pid1, pid2, lid1;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex, ifindex2;
+
+	err = create_netkit(NETKIT_L3, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, FLAG_SAME_NETNS);
+	if (err)
+		return;
+
+	ifindex2 = if_nametoindex(netkit_peer);
+	ASSERT_NEQ(ifindex, ifindex2, "ifindex_1_2");
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1,
+		  BPF_NETKIT_PRIMARY), 0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2,
+		  BPF_NETKIT_PEER), 0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3,
+		  BPF_NETKIT_PRIMARY), 0, "tc3_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	link = bpf_program__attach_netkit(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, BPF_NETKIT_PRIMARY, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex2, BPF_NETKIT_PRIMARY, &optq);
+	ASSERT_EQ(err, -EACCES, "prog_query_should_fail");
+
+	err = bpf_prog_query_opts(ifindex2, BPF_NETKIT_PEER, &optq);
+	ASSERT_EQ(err, -EACCES, "prog_query_should_fail");
+
+	link = bpf_program__attach_netkit(skel->progs.tc2, ifindex2, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	link = bpf_program__attach_netkit(skel->progs.tc3, ifindex2, &optl);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+	destroy_netkit();
+}
+
+static void serial_test_tc_netkit_neigh_links_target(int mode, int target)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	__u32 prog_ids[2], link_ids[2];
+	__u32 pid1, lid1;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, 0);
+	if (err)
+		return;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1,
+		  BPF_NETKIT_PRIMARY), 0, "tc1_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, false, "seen_eth");
+
+	link = bpf_program__attach_netkit(skel->progs.tc1, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	lid1 = id_from_link_fd(bpf_link__fd(skel->links.tc1));
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	optq.prog_ids = prog_ids;
+	optq.link_ids = link_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(link_ids, 0, sizeof(link_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(ifindex, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid1, "prog_ids[0]");
+	ASSERT_EQ(optq.link_ids[0], lid1, "link_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(optq.link_ids[1], 0, "link_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(__send_icmp(ping_addr_noneigh), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true /* L2: ARP */, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_eth, mode == NETKIT_L3, "seen_eth");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_neigh_links(void)
+{
+	serial_test_tc_netkit_neigh_links_target(NETKIT_L2, BPF_NETKIT_PRIMARY);
+	serial_test_tc_netkit_neigh_links_target(NETKIT_L3, BPF_NETKIT_PRIMARY);
+}
+
+static void serial_test_tc_netkit_pkt_type_mode(int mode)
+{
+	LIBBPF_OPTS(bpf_netkit_opts, optl_nk);
+	LIBBPF_OPTS(bpf_tcx_opts, optl_tcx);
+	int err, ifindex, ifindex2;
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+
+	err = create_netkit(mode, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, NETKIT_SCRUB_DEFAULT,
+			    NETKIT_SCRUB_DEFAULT, FLAG_SAME_NETNS);
+	if (err)
+		return;
+
+	ifindex2 = if_nametoindex(netkit_peer);
+	ASSERT_NEQ(ifindex, ifindex2, "ifindex_1_2");
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1,
+		  BPF_NETKIT_PRIMARY), 0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc7,
+		  BPF_TCX_INGRESS), 0, "tc7_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	assert_mprog_count_ifindex(ifindex,  BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex2, BPF_TCX_INGRESS, 0);
+
+	link = bpf_program__attach_netkit(skel->progs.tc1, ifindex, &optl_nk);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc1 = link;
+
+	assert_mprog_count_ifindex(ifindex,  BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex2, BPF_TCX_INGRESS, 0);
+
+	link = bpf_program__attach_tcx(skel->progs.tc7, ifindex2, &optl_tcx);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc7 = link;
+
+	assert_mprog_count_ifindex(ifindex,  BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex2, BPF_TCX_INGRESS, 1);
+
+	move_netkit();
+
+	tc_skel_reset_all_seen(skel);
+	skel->bss->set_type = true;
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc7, true, "seen_tc7");
+
+	ASSERT_EQ(skel->bss->seen_host,  true, "seen_host");
+	ASSERT_EQ(skel->bss->seen_mcast, true, "seen_mcast");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex,  BPF_NETKIT_PRIMARY, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_pkt_type(void)
+{
+	serial_test_tc_netkit_pkt_type_mode(NETKIT_L2);
+	serial_test_tc_netkit_pkt_type_mode(NETKIT_L3);
+}
+
+static void serial_test_tc_netkit_scrub_type(int scrub, bool room)
+{
+	LIBBPF_OPTS(bpf_netkit_opts, optl);
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, ifindex;
+
+	err = create_netkit(NETKIT_L2, NETKIT_PASS, NETKIT_PASS,
+			    &ifindex, scrub, scrub,
+			    room ? FLAG_ADJUST_ROOM : 0);
+	if (err)
+		return;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc8,
+		  BPF_NETKIT_PRIMARY), 0, "tc8_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc8, false, "seen_tc8");
+
+	link = bpf_program__attach_netkit(skel->progs.tc8, ifindex, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+
+	skel->links.tc8 = link;
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 1);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_EQ(send_icmp(), 0, "icmp_pkt");
+
+	ASSERT_EQ(skel->bss->seen_tc8, true, "seen_tc8");
+	ASSERT_EQ(skel->bss->mark, scrub == NETKIT_SCRUB_NONE ? MARK : 0, "mark");
+	ASSERT_EQ(skel->bss->prio, scrub == NETKIT_SCRUB_NONE ? PRIO : 0, "prio");
+	ASSERT_EQ(skel->bss->headroom, room ? NETKIT_HEADROOM : 0, "headroom");
+	ASSERT_EQ(skel->bss->tailroom, room ? NETKIT_TAILROOM : 0, "tailroom");
+cleanup:
+	test_tc_link__destroy(skel);
+
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PRIMARY, 0);
+	assert_mprog_count_ifindex(ifindex, BPF_NETKIT_PEER, 0);
+	destroy_netkit();
+}
+
+void serial_test_tc_netkit_scrub(void)
+{
+	serial_test_tc_netkit_scrub_type(NETKIT_SCRUB_DEFAULT, false);
+	serial_test_tc_netkit_scrub_type(NETKIT_SCRUB_NONE, true);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_opts.c b/tools/testing/selftests/bpf/prog_tests/tc_opts.c
new file mode 100644
index 000000000000..dd7a138d8c3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_opts.c
@@ -0,0 +1,2814 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <uapi/linux/if_link.h>
+#include <net/if.h>
+#include <test_progs.h>
+
+#define loopback 1
+#define ping_cmd "ping -q -c1 -w1 127.0.0.1 > /dev/null"
+
+#include "test_tc_link.skel.h"
+#include "tc_helpers.h"
+
+void test_ns_tc_opts_basic(void)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, id1, id2;
+	struct test_tc_link *skel;
+	__u32 prog_ids[2];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+
+	assert_mprog_count(BPF_TCX_INGRESS, 0);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+	ASSERT_EQ(skel->bss->seen_tc1, false, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	err = bpf_prog_attach_opts(fd1, loopback, BPF_TCX_INGRESS, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(BPF_TCX_INGRESS, 1);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, BPF_TCX_INGRESS, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_in;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+
+	err = bpf_prog_attach_opts(fd2, loopback, BPF_TCX_EGRESS, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_in;
+
+	assert_mprog_count(BPF_TCX_INGRESS, 1);
+	assert_mprog_count(BPF_TCX_EGRESS, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, BPF_TCX_EGRESS, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_eg;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+
+cleanup_eg:
+	err = bpf_prog_detach_opts(fd2, loopback, BPF_TCX_EGRESS, &optd);
+	ASSERT_OK(err, "prog_detach_eg");
+
+	assert_mprog_count(BPF_TCX_INGRESS, 1);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+cleanup_in:
+	err = bpf_prog_detach_opts(fd1, loopback, BPF_TCX_INGRESS, &optd);
+	ASSERT_OK(err, "prog_detach_in");
+
+	assert_mprog_count(BPF_TCX_INGRESS, 0);
+	assert_mprog_count(BPF_TCX_EGRESS, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+static void test_tc_opts_before_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd2,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target3;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 4, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_id = id1,
+	);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target3;
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id2, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+
+cleanup_target4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup_target3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup_target2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup_target:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_before(void)
+{
+	test_tc_opts_before_target(BPF_TCX_INGRESS);
+	test_tc_opts_before_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_after_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target3;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 4, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target3;
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+
+cleanup_target4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target3;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 6, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+cleanup_target3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 7, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+cleanup_target2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 8, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+cleanup_target:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_after(void)
+{
+	test_tc_opts_after_target(BPF_TCX_INGRESS);
+	test_tc_opts_after_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_revision_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, id1, id2;
+	struct test_tc_link *skel;
+	__u32 prog_ids[3];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, -ESTALE, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 2,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+
+	LIBBPF_OPTS_RESET(optd,
+		.expected_revision = 2,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_EQ(err, -ESTALE, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup_target2:
+	LIBBPF_OPTS_RESET(optd,
+		.expected_revision = 3,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup_target:
+	LIBBPF_OPTS_RESET(optd);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_revision(void)
+{
+	test_tc_opts_revision_target(BPF_TCX_INGRESS);
+	test_tc_opts_revision_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_chain_classic(int target, bool chain_tc_old)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback);
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	bool hook_created = false, tc_attached = false;
+	__u32 fd1, fd2, fd3, id1, id2, id3;
+	struct test_tc_link *skel;
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	if (chain_tc_old) {
+		tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+				       BPF_TC_INGRESS : BPF_TC_EGRESS;
+		err = bpf_tc_hook_create(&tc_hook);
+		if (err == 0)
+			hook_created = true;
+		err = err == -EEXIST ? 0 : err;
+		if (!ASSERT_OK(err, "bpf_tc_hook_create"))
+			goto cleanup;
+
+		tc_opts.prog_fd = fd3;
+		err = bpf_tc_attach(&tc_hook, &tc_opts);
+		if (!ASSERT_OK(err, "bpf_tc_attach"))
+			goto cleanup;
+		tc_attached = true;
+	}
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_detach;
+
+	assert_mprog_count(target, 2);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup_detach;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, chain_tc_old, "seen_tc3");
+
+cleanup_detach:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 0);
+cleanup:
+	if (tc_attached) {
+		tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+		err = bpf_tc_detach(&tc_hook, &tc_opts);
+		ASSERT_OK(err, "bpf_tc_detach");
+	}
+	if (hook_created) {
+		tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&tc_hook);
+	}
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_opts_chain_classic(void)
+{
+	test_tc_chain_classic(BPF_TCX_INGRESS, false);
+	test_tc_chain_classic(BPF_TCX_EGRESS, false);
+	test_tc_chain_classic(BPF_TCX_INGRESS, true);
+	test_tc_chain_classic(BPF_TCX_EGRESS, true);
+}
+
+static void test_tc_opts_replace_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, id1, id2, id3, detach_fd;
+	__u32 prog_ids[4], prog_flags[4];
+	struct test_tc_link *skel;
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_id = id1,
+		.expected_revision = 2,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	detach_fd = fd2;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_attach_flags = prog_flags;
+	optq.prog_ids = prog_ids;
+
+	memset(prog_flags, 0, sizeof(prog_flags));
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	ASSERT_EQ(optq.prog_attach_flags[0], 0, "prog_flags[0]");
+	ASSERT_EQ(optq.prog_attach_flags[1], 0, "prog_flags[1]");
+	ASSERT_EQ(optq.prog_attach_flags[2], 0, "prog_flags[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = fd2,
+		.expected_revision = 3,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	detach_fd = fd3;
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 4, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id3, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, false, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE | BPF_F_BEFORE,
+		.replace_prog_fd = fd3,
+		.relative_fd = fd1,
+		.expected_revision = 4,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	detach_fd = fd2;
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = fd2,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE | BPF_F_AFTER,
+		.replace_prog_fd = fd2,
+		.relative_fd = fd1,
+		.expected_revision = 5,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	ASSERT_EQ(err, -ERANGE, "prog_attach");
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE | BPF_F_AFTER | BPF_F_REPLACE,
+		.replace_prog_fd = fd2,
+		.relative_fd = fd1,
+		.expected_revision = 5,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	ASSERT_EQ(err, -ERANGE, "prog_attach");
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_id = id1,
+		.expected_revision = 5,
+	);
+
+cleanup_target2:
+	err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup_target:
+	LIBBPF_OPTS_RESET(optd);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_replace(void)
+{
+	test_tc_opts_replace_target(BPF_TCX_INGRESS);
+	test_tc_opts_replace_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_invalid_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	__u32 fd1, fd2, id1, id2;
+	struct test_tc_link *skel;
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE | BPF_F_AFTER,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ERANGE, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE | BPF_F_ID,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER | BPF_F_ID,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.relative_fd = fd2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE | BPF_F_AFTER,
+		.relative_fd = fd2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_ID,
+		.relative_id = id2,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -ENOENT, "prog_attach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EINVAL, "prog_attach_x1");
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = fd1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_invalid(void)
+{
+	test_tc_opts_invalid_target(BPF_TCX_INGRESS);
+	test_tc_opts_invalid_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_prepend_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id1, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target3;
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id2, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id1, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+
+cleanup_target4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup_target3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup_target2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup_target:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_prepend(void)
+{
+	test_tc_opts_prepend_target(BPF_TCX_INGRESS);
+	test_tc_opts_prepend_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_append_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target;
+
+	assert_mprog_count(target, 2);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target2;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 3, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, false, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target2;
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_target3;
+
+	assert_mprog_count(target, 4);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup_target4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc1, true, "seen_tc1");
+	ASSERT_EQ(skel->bss->seen_tc2, true, "seen_tc2");
+	ASSERT_EQ(skel->bss->seen_tc3, true, "seen_tc3");
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+
+cleanup_target4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup_target3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup_target2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup_target:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_append(void)
+{
+	test_tc_opts_append_target(BPF_TCX_INGRESS);
+	test_tc_opts_append_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_dev_cleanup_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	int err, ifindex;
+
+	ASSERT_OK(system("ip link add dev tcx_opts1 type veth peer name tcx_opts2"), "add veth");
+	ifindex = if_nametoindex("tcx_opts1");
+	ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+
+	err = bpf_prog_attach_opts(fd1, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+
+	err = bpf_prog_attach_opts(fd2, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+
+	err = bpf_prog_attach_opts(fd3, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count_ifindex(ifindex, target, 3);
+
+	err = bpf_prog_attach_opts(fd4, ifindex, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count_ifindex(ifindex, target, 4);
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+	return;
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count_ifindex(ifindex, target, 2);
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count_ifindex(ifindex, target, 1);
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+cleanup:
+	test_tc_link__destroy(skel);
+
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+}
+
+void test_ns_tc_opts_dev_cleanup(void)
+{
+	test_tc_opts_dev_cleanup_target(BPF_TCX_INGRESS);
+	test_tc_opts_dev_cleanup_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_mixed_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	__u32 pid1, pid2, pid3, pid4, lid2, lid4;
+	__u32 prog_flags[4], link_flags[4];
+	__u32 prog_ids[4], link_ids[4];
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	int err, detach_fd;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc3, target),
+		  0, "tc3_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc4, target),
+		  0, "tc4_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	pid3 = id_from_prog_fd(bpf_program__fd(skel->progs.tc3));
+	pid4 = id_from_prog_fd(bpf_program__fd(skel->progs.tc4));
+
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+	ASSERT_NEQ(pid3, pid4, "prog_ids_3_4");
+	ASSERT_NEQ(pid2, pid3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1),
+				   loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	detach_fd = bpf_program__fd(skel->progs.tc1);
+
+	assert_mprog_count(target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup1;
+	skel->links.tc2 = link;
+
+	lid2 = id_from_link_fd(bpf_link__fd(skel->links.tc2));
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc2),
+				   loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1),
+				   loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = bpf_program__fd(skel->progs.tc2),
+	);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc3),
+				   loopback, target, &opta);
+	ASSERT_EQ(err, -EBUSY, "prog_attach");
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = bpf_program__fd(skel->progs.tc1),
+	);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc3),
+				   loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	detach_fd = bpf_program__fd(skel->progs.tc3);
+
+	assert_mprog_count(target, 2);
+
+	link = bpf_program__attach_tcx(skel->progs.tc4, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup1;
+	skel->links.tc4 = link;
+
+	lid4 = id_from_link_fd(bpf_link__fd(skel->links.tc4));
+
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = bpf_program__fd(skel->progs.tc4),
+	);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc2),
+				   loopback, target, &opta);
+	ASSERT_EQ(err, -EEXIST, "prog_attach");
+
+	optq.prog_ids = prog_ids;
+	optq.prog_attach_flags = prog_flags;
+	optq.link_ids = link_ids;
+	optq.link_attach_flags = link_flags;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	memset(prog_flags, 0, sizeof(prog_flags));
+	memset(link_ids, 0, sizeof(link_ids));
+	memset(link_flags, 0, sizeof(link_flags));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup1;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], pid3, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_attach_flags[0], 0, "prog_flags[0]");
+	ASSERT_EQ(optq.link_ids[0], 0, "link_ids[0]");
+	ASSERT_EQ(optq.link_attach_flags[0], 0, "link_flags[0]");
+	ASSERT_EQ(optq.prog_ids[1], pid2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_attach_flags[1], 0, "prog_flags[1]");
+	ASSERT_EQ(optq.link_ids[1], lid2, "link_ids[1]");
+	ASSERT_EQ(optq.link_attach_flags[1], 0, "link_flags[1]");
+	ASSERT_EQ(optq.prog_ids[2], pid4, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_attach_flags[2], 0, "prog_flags[2]");
+	ASSERT_EQ(optq.link_ids[2], lid4, "link_ids[2]");
+	ASSERT_EQ(optq.link_attach_flags[2], 0, "link_flags[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_attach_flags[3], 0, "prog_flags[3]");
+	ASSERT_EQ(optq.link_ids[3], 0, "link_ids[3]");
+	ASSERT_EQ(optq.link_attach_flags[3], 0, "link_flags[3]");
+
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+cleanup1:
+	err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_opts_mixed(void)
+{
+	test_tc_opts_mixed_target(BPF_TCX_INGRESS);
+	test_tc_opts_mixed_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_demixed_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_tcx_opts, optl);
+	struct test_tc_link *skel;
+	struct bpf_link *link;
+	__u32 pid1, pid2;
+	int err;
+
+	skel = test_tc_link__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		goto cleanup;
+
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc1, target),
+		  0, "tc1_attach_type");
+	ASSERT_EQ(bpf_program__set_expected_attach_type(skel->progs.tc2, target),
+		  0, "tc2_attach_type");
+
+	err = test_tc_link__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pid1 = id_from_prog_fd(bpf_program__fd(skel->progs.tc1));
+	pid2 = id_from_prog_fd(bpf_program__fd(skel->progs.tc2));
+	ASSERT_NEQ(pid1, pid2, "prog_ids_1_2");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(bpf_program__fd(skel->progs.tc1),
+				   loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	link = bpf_program__attach_tcx(skel->progs.tc2, loopback, &optl);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup1;
+	skel->links.tc2 = link;
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_EQ(err, -EBUSY, "prog_detach");
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 1);
+	goto cleanup;
+
+cleanup1:
+	err = bpf_prog_detach_opts(bpf_program__fd(skel->progs.tc1),
+				   loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup:
+	test_tc_link__destroy(skel);
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_opts_demixed(void)
+{
+	test_tc_opts_demixed_target(BPF_TCX_INGRESS);
+	test_tc_opts_demixed_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_detach_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(target, 2);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(target, 3);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(target, 4);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 3);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 6, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 7, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	LIBBPF_OPTS_RESET(optd);
+
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+	goto cleanup;
+
+cleanup4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_detach(void)
+{
+	test_tc_opts_detach_target(BPF_TCX_INGRESS);
+	test_tc_opts_detach_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_detach_before_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(target, 2);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(target, 3);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(target, 4);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd2,
+	);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 3);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 6, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id2, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd2,
+	);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd4,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_EQ(err, -ERANGE, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd3,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 7, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id3, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id4, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+		.relative_fd = fd4,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 8, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id4, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_BEFORE,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 0);
+	goto cleanup;
+
+cleanup4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_detach_before(void)
+{
+	test_tc_opts_detach_before_target(BPF_TCX_INGRESS);
+	test_tc_opts_detach_before_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_detach_after_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	__u32 prog_ids[5];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id3, id4, "prog_ids_3_4");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(target, 2);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(target, 3);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(target, 4);
+
+	optq.prog_ids = prog_ids;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 3);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 3, "count");
+	ASSERT_EQ(optq.revision, 6, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id3, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id4, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], 0, "prog_ids[3]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd4,
+	);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_EQ(err, -ERANGE, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd3,
+	);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_EQ(err, -ERANGE, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_EQ(err, -ERANGE, "prog_detach");
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 2);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 2, "count");
+	ASSERT_EQ(optq.revision, 7, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id4, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], 0, "prog_ids[2]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+		.relative_fd = fd1,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 1);
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 8, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+	LIBBPF_OPTS_RESET(optd,
+		.flags = BPF_F_AFTER,
+	);
+
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+
+	assert_mprog_count(target, 0);
+	goto cleanup;
+
+cleanup4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_detach_after(void)
+{
+	test_tc_opts_detach_after_target(BPF_TCX_INGRESS);
+	test_tc_opts_detach_after_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_delete_empty(int target, bool chain_tc_old)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	int err;
+
+	assert_mprog_count(target, 0);
+	if (chain_tc_old) {
+		tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+				       BPF_TC_INGRESS : BPF_TC_EGRESS;
+		err = bpf_tc_hook_create(&tc_hook);
+		ASSERT_OK(err, "bpf_tc_hook_create");
+		assert_mprog_count(target, 0);
+	}
+	err = bpf_prog_detach_opts(0, loopback, target, &optd);
+	ASSERT_EQ(err, -ENOENT, "prog_detach");
+	if (chain_tc_old) {
+		tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+		bpf_tc_hook_destroy(&tc_hook);
+	}
+	assert_mprog_count(target, 0);
+}
+
+void test_ns_tc_opts_delete_empty(void)
+{
+	test_tc_opts_delete_empty(BPF_TCX_INGRESS, false);
+	test_tc_opts_delete_empty(BPF_TCX_EGRESS, false);
+	test_tc_opts_delete_empty(BPF_TCX_INGRESS, true);
+	test_tc_opts_delete_empty(BPF_TCX_EGRESS, true);
+}
+
+static void test_tc_chain_mixed(int target)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .ifindex = loopback);
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	__u32 fd1, fd2, fd3, id1, id2, id3;
+	struct test_tc_link *skel;
+	int err, detach_fd;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc4);
+	fd2 = bpf_program__fd(skel->progs.tc5);
+	fd3 = bpf_program__fd(skel->progs.tc6);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+
+	ASSERT_NEQ(id1, id2, "prog_ids_1_2");
+	ASSERT_NEQ(id2, id3, "prog_ids_2_3");
+
+	assert_mprog_count(target, 0);
+
+	tc_hook.attach_point = target == BPF_TCX_INGRESS ?
+			       BPF_TC_INGRESS : BPF_TC_EGRESS;
+	err = bpf_tc_hook_create(&tc_hook);
+	err = err == -EEXIST ? 0 : err;
+	if (!ASSERT_OK(err, "bpf_tc_hook_create"))
+		goto cleanup;
+
+	tc_opts.prog_fd = fd2;
+	err = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(err, "bpf_tc_attach"))
+		goto cleanup_hook;
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_filter;
+
+	detach_fd = fd3;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, false, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, true, "seen_tc6");
+
+	LIBBPF_OPTS_RESET(opta,
+		.flags = BPF_F_REPLACE,
+		.replace_prog_fd = fd3,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup_opts;
+
+	detach_fd = fd1;
+
+	assert_mprog_count(target, 1);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, true, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6");
+
+cleanup_opts:
+	err = bpf_prog_detach_opts(detach_fd, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+	tc_skel_reset_all_seen(skel);
+	ASSERT_OK(system(ping_cmd), ping_cmd);
+
+	ASSERT_EQ(skel->bss->seen_tc4, false, "seen_tc4");
+	ASSERT_EQ(skel->bss->seen_tc5, true, "seen_tc5");
+	ASSERT_EQ(skel->bss->seen_tc6, false, "seen_tc6");
+
+cleanup_filter:
+	tc_opts.flags = tc_opts.prog_fd = tc_opts.prog_id = 0;
+	err = bpf_tc_detach(&tc_hook, &tc_opts);
+	ASSERT_OK(err, "bpf_tc_detach");
+
+cleanup_hook:
+	tc_hook.attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+	bpf_tc_hook_destroy(&tc_hook);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_chain_mixed(void)
+{
+	test_tc_chain_mixed(BPF_TCX_INGRESS);
+	test_tc_chain_mixed(BPF_TCX_EGRESS);
+}
+
+static int generate_dummy_prog(void)
+{
+	const struct bpf_insn prog_insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	const size_t prog_insn_cnt = ARRAY_SIZE(prog_insns);
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	const size_t log_buf_sz = 256;
+	char log_buf[log_buf_sz];
+	int fd = -1;
+
+	opts.log_buf = log_buf;
+	opts.log_size = log_buf_sz;
+
+	log_buf[0] = '\0';
+	opts.log_level = 0;
+	fd = bpf_prog_load(BPF_PROG_TYPE_SCHED_CLS, "tcx_prog", "GPL",
+			   prog_insns, prog_insn_cnt, &opts);
+	ASSERT_STREQ(log_buf, "", "log_0");
+	ASSERT_GE(fd, 0, "prog_fd");
+	return fd;
+}
+
+static void test_tc_opts_max_target(int target, int flags, bool relative)
+{
+	int err, ifindex, i, prog_fd, last_fd = -1;
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	const int max_progs = 63;
+
+	ASSERT_OK(system("ip link add dev tcx_opts1 type veth peer name tcx_opts2"), "add veth");
+	ifindex = if_nametoindex("tcx_opts1");
+	ASSERT_NEQ(ifindex, 0, "non_zero_ifindex");
+
+	assert_mprog_count_ifindex(ifindex, target, 0);
+
+	for (i = 0; i < max_progs; i++) {
+		prog_fd = generate_dummy_prog();
+		if (!ASSERT_GE(prog_fd, 0, "dummy_prog"))
+			goto cleanup;
+		err = bpf_prog_attach_opts(prog_fd, ifindex, target, &opta);
+		if (!ASSERT_EQ(err, 0, "prog_attach"))
+			goto cleanup;
+		assert_mprog_count_ifindex(ifindex, target, i + 1);
+		if (i == max_progs - 1 && relative)
+			last_fd = prog_fd;
+		else
+			close(prog_fd);
+	}
+
+	prog_fd = generate_dummy_prog();
+	if (!ASSERT_GE(prog_fd, 0, "dummy_prog"))
+		goto cleanup;
+	opta.flags = flags;
+	if (last_fd > 0)
+		opta.relative_fd = last_fd;
+	err = bpf_prog_attach_opts(prog_fd, ifindex, target, &opta);
+	ASSERT_EQ(err, -ERANGE, "prog_64_attach");
+	assert_mprog_count_ifindex(ifindex, target, max_progs);
+	close(prog_fd);
+cleanup:
+	if (last_fd > 0)
+		close(last_fd);
+	ASSERT_OK(system("ip link del dev tcx_opts1"), "del veth");
+	ASSERT_EQ(if_nametoindex("tcx_opts1"), 0, "dev1_removed");
+	ASSERT_EQ(if_nametoindex("tcx_opts2"), 0, "dev2_removed");
+}
+
+void test_ns_tc_opts_max(void)
+{
+	test_tc_opts_max_target(BPF_TCX_INGRESS, 0, false);
+	test_tc_opts_max_target(BPF_TCX_EGRESS, 0, false);
+
+	test_tc_opts_max_target(BPF_TCX_INGRESS, BPF_F_BEFORE, false);
+	test_tc_opts_max_target(BPF_TCX_EGRESS, BPF_F_BEFORE, true);
+
+	test_tc_opts_max_target(BPF_TCX_INGRESS, BPF_F_AFTER, true);
+	test_tc_opts_max_target(BPF_TCX_EGRESS, BPF_F_AFTER, false);
+}
+
+static void test_tc_opts_query_target(int target)
+{
+	const size_t attr_size = offsetofend(union bpf_attr, query);
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	__u32 fd1, fd2, fd3, fd4, id1, id2, id3, id4;
+	struct test_tc_link *skel;
+	union bpf_attr attr;
+	__u32 prog_ids[10];
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	fd2 = bpf_program__fd(skel->progs.tc2);
+	fd3 = bpf_program__fd(skel->progs.tc3);
+	fd4 = bpf_program__fd(skel->progs.tc4);
+
+	id1 = id_from_prog_fd(fd1);
+	id2 = id_from_prog_fd(fd2);
+	id3 = id_from_prog_fd(fd3);
+	id4 = id_from_prog_fd(fd4);
+
+	assert_mprog_count(target, 0);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 1,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	assert_mprog_count(target, 1);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 2,
+	);
+
+	err = bpf_prog_attach_opts(fd2, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup1;
+
+	assert_mprog_count(target, 2);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 3,
+	);
+
+	err = bpf_prog_attach_opts(fd3, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup2;
+
+	assert_mprog_count(target, 3);
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = 4,
+	);
+
+	err = bpf_prog_attach_opts(fd4, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup3;
+
+	assert_mprog_count(target, 4);
+
+	/* Test 1: Double query via libbpf API */
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids, NULL, "prog_ids");
+	ASSERT_EQ(optq.link_ids, NULL, "link_ids");
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.prog_ids = prog_ids;
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(optq.count, 4, "count");
+	ASSERT_EQ(optq.revision, 5, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(optq.prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(optq.prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(optq.prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(optq.link_ids, NULL, "link_ids");
+
+	/* Test 2: Double query via bpf_attr & bpf(2) directly */
+	memset(&attr, 0, attr_size);
+	attr.query.target_ifindex = loopback;
+	attr.query.attach_type = target;
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(attr.query.prog_ids, 0, "prog_ids");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	attr.query.prog_ids = ptr_to_u64(prog_ids);
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids");
+	ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	/* Test 3: Query with smaller prog_ids array */
+	memset(&attr, 0, attr_size);
+	attr.query.target_ifindex = loopback;
+	attr.query.attach_type = target;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	attr.query.prog_ids = ptr_to_u64(prog_ids);
+	attr.query.count = 2;
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	ASSERT_EQ(err, -1, "prog_query_should_fail");
+	ASSERT_EQ(errno, ENOSPC, "prog_query_should_fail");
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids");
+	ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]");
+	ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	/* Test 4: Query with larger prog_ids array */
+	memset(&attr, 0, attr_size);
+	attr.query.target_ifindex = loopback;
+	attr.query.attach_type = target;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	attr.query.prog_ids = ptr_to_u64(prog_ids);
+	attr.query.count = 10;
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids");
+	ASSERT_EQ(prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(prog_ids[1], id2, "prog_ids[1]");
+	ASSERT_EQ(prog_ids[2], id3, "prog_ids[2]");
+	ASSERT_EQ(prog_ids[3], id4, "prog_ids[3]");
+	ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	/* Test 5: Query with NULL prog_ids array but with count > 0 */
+	memset(&attr, 0, attr_size);
+	attr.query.target_ifindex = loopback;
+	attr.query.attach_type = target;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	attr.query.count = sizeof(prog_ids);
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(prog_ids[0], 0, "prog_ids[0]");
+	ASSERT_EQ(prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]");
+	ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(attr.query.prog_ids, 0, "prog_ids");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	/* Test 6: Query with non-NULL prog_ids array but with count == 0 */
+	memset(&attr, 0, attr_size);
+	attr.query.target_ifindex = loopback;
+	attr.query.attach_type = target;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	attr.query.prog_ids = ptr_to_u64(prog_ids);
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup4;
+
+	ASSERT_EQ(attr.query.count, 4, "count");
+	ASSERT_EQ(attr.query.revision, 5, "revision");
+	ASSERT_EQ(attr.query.query_flags, 0, "query_flags");
+	ASSERT_EQ(attr.query.attach_flags, 0, "attach_flags");
+	ASSERT_EQ(attr.query.target_ifindex, loopback, "target_ifindex");
+	ASSERT_EQ(attr.query.attach_type, target, "attach_type");
+	ASSERT_EQ(prog_ids[0], 0, "prog_ids[0]");
+	ASSERT_EQ(prog_ids[1], 0, "prog_ids[1]");
+	ASSERT_EQ(prog_ids[2], 0, "prog_ids[2]");
+	ASSERT_EQ(prog_ids[3], 0, "prog_ids[3]");
+	ASSERT_EQ(prog_ids[4], 0, "prog_ids[4]");
+	ASSERT_EQ(attr.query.prog_ids, ptr_to_u64(prog_ids), "prog_ids");
+	ASSERT_EQ(attr.query.prog_attach_flags, 0, "prog_attach_flags");
+	ASSERT_EQ(attr.query.link_ids, 0, "link_ids");
+	ASSERT_EQ(attr.query.link_attach_flags, 0, "link_attach_flags");
+
+	/* Test 7: Query with invalid flags */
+	attr.query.attach_flags = 0;
+	attr.query.query_flags = 1;
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	ASSERT_EQ(err, -1, "prog_query_should_fail");
+	ASSERT_EQ(errno, EINVAL, "prog_query_should_fail");
+
+	attr.query.attach_flags = 1;
+	attr.query.query_flags = 0;
+
+	err = syscall(__NR_bpf, BPF_PROG_QUERY, &attr, attr_size);
+	ASSERT_EQ(err, -1, "prog_query_should_fail");
+	ASSERT_EQ(errno, EINVAL, "prog_query_should_fail");
+
+cleanup4:
+	err = bpf_prog_detach_opts(fd4, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 3);
+
+cleanup3:
+	err = bpf_prog_detach_opts(fd3, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 2);
+
+cleanup2:
+	err = bpf_prog_detach_opts(fd2, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 1);
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_query(void)
+{
+	test_tc_opts_query_target(BPF_TCX_INGRESS);
+	test_tc_opts_query_target(BPF_TCX_EGRESS);
+}
+
+static void test_tc_opts_query_attach_target(int target)
+{
+	LIBBPF_OPTS(bpf_prog_attach_opts, opta);
+	LIBBPF_OPTS(bpf_prog_detach_opts, optd);
+	LIBBPF_OPTS(bpf_prog_query_opts, optq);
+	struct test_tc_link *skel;
+	__u32 prog_ids[2];
+	__u32 fd1, id1;
+	int err;
+
+	skel = test_tc_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto cleanup;
+
+	fd1 = bpf_program__fd(skel->progs.tc1);
+	id1 = id_from_prog_fd(fd1);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup;
+
+	ASSERT_EQ(optq.count, 0, "count");
+	ASSERT_EQ(optq.revision, 1, "revision");
+
+	LIBBPF_OPTS_RESET(opta,
+		.expected_revision = optq.revision,
+	);
+
+	err = bpf_prog_attach_opts(fd1, loopback, target, &opta);
+	if (!ASSERT_EQ(err, 0, "prog_attach"))
+		goto cleanup;
+
+	memset(prog_ids, 0, sizeof(prog_ids));
+	optq.prog_ids = prog_ids;
+	optq.count = ARRAY_SIZE(prog_ids);
+
+	err = bpf_prog_query_opts(loopback, target, &optq);
+	if (!ASSERT_OK(err, "prog_query"))
+		goto cleanup1;
+
+	ASSERT_EQ(optq.count, 1, "count");
+	ASSERT_EQ(optq.revision, 2, "revision");
+	ASSERT_EQ(optq.prog_ids[0], id1, "prog_ids[0]");
+	ASSERT_EQ(optq.prog_ids[1], 0, "prog_ids[1]");
+
+cleanup1:
+	err = bpf_prog_detach_opts(fd1, loopback, target, &optd);
+	ASSERT_OK(err, "prog_detach");
+	assert_mprog_count(target, 0);
+cleanup:
+	test_tc_link__destroy(skel);
+}
+
+void test_ns_tc_opts_query_attach(void)
+{
+	test_tc_opts_query_attach_target(BPF_TCX_INGRESS);
+	test_tc_opts_query_attach_target(BPF_TCX_EGRESS);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
new file mode 100644
index 000000000000..76d72a59365e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
@@ -0,0 +1,1303 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * This test sets up 3 netns (src <-> fwd <-> dst). There is no direct veth link
+ * between src and dst. The netns fwd has veth links to each src and dst. The
+ * client is in src and server in dst. The test installs a TC BPF program to each
+ * host facing veth in fwd which calls into i) bpf_redirect_neigh() to perform the
+ * neigh addr population and redirect or ii) bpf_redirect_peer() for namespace
+ * switch from ingress side; it also installs a checker prog on the egress side
+ * to drop unexpected traffic.
+ */
+
+#include <arpa/inet.h>
+#include <linux/if_tun.h>
+#include <linux/limits.h>
+#include <linux/sysctl.h>
+#include <linux/time_types.h>
+#include <linux/net_tstamp.h>
+#include <net/if.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "netlink_helpers.h"
+#include "test_tc_neigh_fib.skel.h"
+#include "test_tc_neigh.skel.h"
+#include "test_tc_peer.skel.h"
+#include "test_tc_dtime.skel.h"
+
+#ifndef TCP_TX_DELAY
+#define TCP_TX_DELAY 37
+#endif
+
+#define NS_SRC "ns_src"
+#define NS_FWD "ns_fwd"
+#define NS_DST "ns_dst"
+
+#define IP4_SRC "172.16.1.100"
+#define IP4_DST "172.16.2.100"
+#define IP4_TUN_SRC "172.17.1.100"
+#define IP4_TUN_FWD "172.17.1.200"
+#define IP4_PORT 9004
+
+#define IP6_SRC "0::1:dead:beef:cafe"
+#define IP6_DST "0::2:dead:beef:cafe"
+#define IP6_TUN_SRC "1::1:dead:beef:cafe"
+#define IP6_TUN_FWD "1::2:dead:beef:cafe"
+#define IP6_PORT 9006
+
+#define IP4_SLL "169.254.0.1"
+#define IP4_DLL "169.254.0.2"
+#define IP4_NET "169.254.0.0"
+
+#define MAC_DST_FWD "00:11:22:33:44:55"
+#define MAC_DST "00:22:33:44:55:66"
+#define MAC_SRC_FWD "00:33:44:55:66:77"
+#define MAC_SRC "00:44:55:66:77:88"
+
+#define IFADDR_STR_LEN 18
+#define PING_ARGS "-i 0.2 -c 3 -w 10 -q"
+
+#define TIMEOUT_MILLIS 10000
+#define NSEC_PER_SEC 1000000000ULL
+
+#define log_err(MSG, ...) \
+	fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", \
+		__FILE__, __LINE__, strerror(errno), ##__VA_ARGS__)
+
+static const char * const namespaces[] = {NS_SRC, NS_FWD, NS_DST, NULL};
+static struct netns_obj *netns_objs[3];
+
+static int write_file(const char *path, const char *newval)
+{
+	FILE *f;
+
+	f = fopen(path, "r+");
+	if (!f)
+		return -1;
+	if (fwrite(newval, strlen(newval), 1, f) != 1) {
+		log_err("writing to %s failed", path);
+		fclose(f);
+		return -1;
+	}
+	fclose(f);
+	return 0;
+}
+
+static int netns_setup_namespaces(const char *verb)
+{
+	struct netns_obj **ns_obj = netns_objs;
+	const char * const *ns = namespaces;
+
+	while (*ns) {
+		if (strcmp(verb, "add") == 0) {
+			*ns_obj = netns_new(*ns, false);
+			if (!ASSERT_OK_PTR(*ns_obj, "netns_new"))
+				return -1;
+		} else {
+			if (!ASSERT_OK_PTR(*ns_obj, "netns_obj is NULL"))
+				return -1;
+			netns_free(*ns_obj);
+			*ns_obj = NULL;
+		}
+		ns++;
+		ns_obj++;
+	}
+	return 0;
+}
+
+static void netns_setup_namespaces_nofail(const char *verb)
+{
+	struct netns_obj **ns_obj = netns_objs;
+	const char * const *ns = namespaces;
+
+	while (*ns) {
+		if (strcmp(verb, "add") == 0) {
+			*ns_obj = netns_new(*ns, false);
+		} else {
+			if (*ns_obj)
+				netns_free(*ns_obj);
+			*ns_obj = NULL;
+		}
+		ns++;
+		ns_obj++;
+	}
+}
+
+enum dev_mode {
+	MODE_VETH,
+	MODE_NETKIT,
+};
+
+struct netns_setup_result {
+	enum dev_mode dev_mode;
+	int ifindex_src;
+	int ifindex_src_fwd;
+	int ifindex_dst;
+	int ifindex_dst_fwd;
+};
+
+static int get_ifaddr(const char *name, char *ifaddr)
+{
+	char path[PATH_MAX];
+	FILE *f;
+	int ret;
+
+	snprintf(path, PATH_MAX, "/sys/class/net/%s/address", name);
+	f = fopen(path, "r");
+	if (!ASSERT_OK_PTR(f, path))
+		return -1;
+
+	ret = fread(ifaddr, 1, IFADDR_STR_LEN, f);
+	if (!ASSERT_EQ(ret, IFADDR_STR_LEN, "fread ifaddr")) {
+		fclose(f);
+		return -1;
+	}
+	fclose(f);
+	return 0;
+}
+
+static int create_netkit(int mode, char *prim, char *peer)
+{
+	struct rtattr *linkinfo, *data, *peer_info;
+	struct rtnl_handle rth = { .fd = -1 };
+	const char *type = "netkit";
+	struct {
+		struct nlmsghdr n;
+		struct ifinfomsg i;
+		char buf[1024];
+	} req = {};
+	int err;
+
+	err = rtnl_open(&rth, 0);
+	if (!ASSERT_OK(err, "open_rtnetlink"))
+		return err;
+
+	memset(&req, 0, sizeof(req));
+	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+	req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
+	req.n.nlmsg_type = RTM_NEWLINK;
+	req.i.ifi_family = AF_UNSPEC;
+
+	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, prim, strlen(prim));
+	linkinfo = addattr_nest(&req.n, sizeof(req), IFLA_LINKINFO);
+	addattr_l(&req.n, sizeof(req), IFLA_INFO_KIND, type, strlen(type));
+	data = addattr_nest(&req.n, sizeof(req), IFLA_INFO_DATA);
+	addattr32(&req.n, sizeof(req), IFLA_NETKIT_MODE, mode);
+	peer_info = addattr_nest(&req.n, sizeof(req), IFLA_NETKIT_PEER_INFO);
+	req.n.nlmsg_len += sizeof(struct ifinfomsg);
+	addattr_l(&req.n, sizeof(req), IFLA_IFNAME, peer, strlen(peer));
+	addattr_nest_end(&req.n, peer_info);
+	addattr_nest_end(&req.n, data);
+	addattr_nest_end(&req.n, linkinfo);
+
+	err = rtnl_talk(&rth, &req.n, NULL);
+	ASSERT_OK(err, "talk_rtnetlink");
+	rtnl_close(&rth);
+	return err;
+}
+
+static int netns_setup_links_and_routes(struct netns_setup_result *result)
+{
+	struct nstoken *nstoken = NULL;
+	char src_fwd_addr[IFADDR_STR_LEN+1] = {};
+	char src_addr[IFADDR_STR_LEN + 1] = {};
+	int err;
+
+	if (result->dev_mode == MODE_VETH) {
+		SYS(fail, "ip link add src address " MAC_SRC " type veth "
+			  "peer name src_fwd address " MAC_SRC_FWD);
+		SYS(fail, "ip link add dst address " MAC_DST " type veth "
+			  "peer name dst_fwd address " MAC_DST_FWD);
+	} else if (result->dev_mode == MODE_NETKIT) {
+		err = create_netkit(NETKIT_L3, "src", "src_fwd");
+		if (!ASSERT_OK(err, "create_ifindex_src"))
+			goto fail;
+		err = create_netkit(NETKIT_L3, "dst", "dst_fwd");
+		if (!ASSERT_OK(err, "create_ifindex_dst"))
+			goto fail;
+	}
+
+	if (get_ifaddr("src_fwd", src_fwd_addr))
+		goto fail;
+
+	if (get_ifaddr("src", src_addr))
+		goto fail;
+
+	result->ifindex_src = if_nametoindex("src");
+	if (!ASSERT_GT(result->ifindex_src, 0, "ifindex_src"))
+		goto fail;
+
+	result->ifindex_src_fwd = if_nametoindex("src_fwd");
+	if (!ASSERT_GT(result->ifindex_src_fwd, 0, "ifindex_src_fwd"))
+		goto fail;
+
+	result->ifindex_dst = if_nametoindex("dst");
+	if (!ASSERT_GT(result->ifindex_dst, 0, "ifindex_dst"))
+		goto fail;
+
+	result->ifindex_dst_fwd = if_nametoindex("dst_fwd");
+	if (!ASSERT_GT(result->ifindex_dst_fwd, 0, "ifindex_dst_fwd"))
+		goto fail;
+
+	SYS(fail, "ip link set src netns " NS_SRC);
+	SYS(fail, "ip link set src_fwd netns " NS_FWD);
+	SYS(fail, "ip link set dst_fwd netns " NS_FWD);
+	SYS(fail, "ip link set dst netns " NS_DST);
+
+	/** setup in 'src' namespace */
+	nstoken = open_netns(NS_SRC);
+	if (!ASSERT_OK_PTR(nstoken, "setns src"))
+		goto fail;
+
+	SYS(fail, "ip addr add " IP4_SRC "/32 dev src");
+	SYS(fail, "ip addr add " IP6_SRC "/128 dev src nodad");
+	SYS(fail, "ip link set dev src up");
+
+	SYS(fail, "ip route add " IP4_DST "/32 dev src scope global");
+	SYS(fail, "ip route add " IP4_NET "/16 dev src scope global");
+	SYS(fail, "ip route add " IP6_DST "/128 dev src scope global");
+
+	if (result->dev_mode == MODE_VETH) {
+		SYS(fail, "ip neigh add " IP4_DST " dev src lladdr %s",
+		    src_fwd_addr);
+		SYS(fail, "ip neigh add " IP6_DST " dev src lladdr %s",
+		    src_fwd_addr);
+	}
+
+	close_netns(nstoken);
+
+	/** setup in 'fwd' namespace */
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		goto fail;
+
+	/* The fwd netns automatically gets a v6 LL address / routes, but also
+	 * needs v4 one in order to start ARP probing. IP4_NET route is added
+	 * to the endpoints so that the ARP processing will reply.
+	 */
+	SYS(fail, "ip addr add " IP4_SLL "/32 dev src_fwd");
+	SYS(fail, "ip addr add " IP4_DLL "/32 dev dst_fwd");
+	SYS(fail, "ip link set dev src_fwd up");
+	SYS(fail, "ip link set dev dst_fwd up");
+
+	SYS(fail, "ip route add " IP4_SRC "/32 dev src_fwd scope global");
+	SYS(fail, "ip route add " IP6_SRC "/128 dev src_fwd scope global");
+	SYS(fail, "ip route add " IP4_DST "/32 dev dst_fwd scope global");
+	SYS(fail, "ip route add " IP6_DST "/128 dev dst_fwd scope global");
+
+	if (result->dev_mode == MODE_VETH) {
+		SYS(fail, "ip neigh add " IP4_SRC " dev src_fwd lladdr %s", src_addr);
+		SYS(fail, "ip neigh add " IP6_SRC " dev src_fwd lladdr %s", src_addr);
+		SYS(fail, "ip neigh add " IP4_DST " dev dst_fwd lladdr %s", MAC_DST);
+		SYS(fail, "ip neigh add " IP6_DST " dev dst_fwd lladdr %s", MAC_DST);
+	}
+
+	close_netns(nstoken);
+
+	/** setup in 'dst' namespace */
+	nstoken = open_netns(NS_DST);
+	if (!ASSERT_OK_PTR(nstoken, "setns dst"))
+		goto fail;
+
+	SYS(fail, "ip addr add " IP4_DST "/32 dev dst");
+	SYS(fail, "ip addr add " IP6_DST "/128 dev dst nodad");
+	SYS(fail, "ip link set dev dst up");
+	SYS(fail, "ip link set dev lo up");
+
+	SYS(fail, "ip route add " IP4_SRC "/32 dev dst scope global");
+	SYS(fail, "ip route add " IP4_NET "/16 dev dst scope global");
+	SYS(fail, "ip route add " IP6_SRC "/128 dev dst scope global");
+
+	if (result->dev_mode == MODE_VETH) {
+		SYS(fail, "ip neigh add " IP4_SRC " dev dst lladdr " MAC_DST_FWD);
+		SYS(fail, "ip neigh add " IP6_SRC " dev dst lladdr " MAC_DST_FWD);
+	}
+
+	close_netns(nstoken);
+
+	return 0;
+fail:
+	if (nstoken)
+		close_netns(nstoken);
+	return -1;
+}
+
+static int qdisc_clsact_create(struct bpf_tc_hook *qdisc_hook, int ifindex)
+{
+	char err_str[128], ifname[16];
+	int err;
+
+	qdisc_hook->ifindex = ifindex;
+	qdisc_hook->attach_point = BPF_TC_INGRESS | BPF_TC_EGRESS;
+	err = bpf_tc_hook_create(qdisc_hook);
+	snprintf(err_str, sizeof(err_str),
+		 "qdisc add dev %s clsact",
+		 if_indextoname(qdisc_hook->ifindex, ifname) ? : "<unknown_iface>");
+	err_str[sizeof(err_str) - 1] = 0;
+	ASSERT_OK(err, err_str);
+
+	return err;
+}
+
+static int xgress_filter_add(struct bpf_tc_hook *qdisc_hook,
+			     enum bpf_tc_attach_point xgress,
+			     const struct bpf_program *prog, int priority)
+{
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach);
+	char err_str[128], ifname[16];
+	int err;
+
+	qdisc_hook->attach_point = xgress;
+	tc_attach.prog_fd = bpf_program__fd(prog);
+	tc_attach.priority = priority;
+	err = bpf_tc_attach(qdisc_hook, &tc_attach);
+	snprintf(err_str, sizeof(err_str),
+		 "filter add dev %s %s prio %d bpf da %s",
+		 if_indextoname(qdisc_hook->ifindex, ifname) ? : "<unknown_iface>",
+		 xgress == BPF_TC_INGRESS ? "ingress" : "egress",
+		 priority, bpf_program__name(prog));
+	err_str[sizeof(err_str) - 1] = 0;
+	ASSERT_OK(err, err_str);
+
+	return err;
+}
+
+#define QDISC_CLSACT_CREATE(qdisc_hook, ifindex) ({		\
+	if ((err = qdisc_clsact_create(qdisc_hook, ifindex)))	\
+		goto fail;					\
+})
+
+#define XGRESS_FILTER_ADD(qdisc_hook, xgress, prog, priority) ({		\
+	if ((err = xgress_filter_add(qdisc_hook, xgress, prog, priority)))	\
+		goto fail;							\
+})
+
+static int netns_load_bpf(const struct bpf_program *src_prog,
+			  const struct bpf_program *dst_prog,
+			  const struct bpf_program *chk_prog,
+			  const struct netns_setup_result *setup_result)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_src_fwd);
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd);
+	int err;
+
+	/* tc qdisc add dev src_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_src_fwd, setup_result->ifindex_src_fwd);
+	/* tc filter add dev src_fwd ingress bpf da src_prog */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS, src_prog, 0);
+	/* tc filter add dev src_fwd egress bpf da chk_prog */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS, chk_prog, 0);
+
+	/* tc qdisc add dev dst_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd);
+	/* tc filter add dev dst_fwd ingress bpf da dst_prog */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, dst_prog, 0);
+	/* tc filter add dev dst_fwd egress bpf da chk_prog */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, chk_prog, 0);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void test_tcp(int family, const char *addr, __u16 port)
+{
+	int listen_fd = -1, accept_fd = -1, client_fd = -1;
+	char buf[] = "testing testing";
+	int n;
+	struct nstoken *nstoken;
+
+	nstoken = open_netns(NS_DST);
+	if (!ASSERT_OK_PTR(nstoken, "setns dst"))
+		return;
+
+	listen_fd = start_server(family, SOCK_STREAM, addr, port, 0);
+	if (!ASSERT_GE(listen_fd, 0, "listen"))
+		goto done;
+
+	close_netns(nstoken);
+	nstoken = open_netns(NS_SRC);
+	if (!ASSERT_OK_PTR(nstoken, "setns src"))
+		goto done;
+
+	client_fd = connect_to_fd(listen_fd, TIMEOUT_MILLIS);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto done;
+
+	accept_fd = accept(listen_fd, NULL, NULL);
+	if (!ASSERT_GE(accept_fd, 0, "accept"))
+		goto done;
+
+	if (!ASSERT_OK(settimeo(accept_fd, TIMEOUT_MILLIS), "settimeo"))
+		goto done;
+
+	n = write(client_fd, buf, sizeof(buf));
+	if (!ASSERT_EQ(n, sizeof(buf), "send to server"))
+		goto done;
+
+	n = read(accept_fd, buf, sizeof(buf));
+	ASSERT_EQ(n, sizeof(buf), "recv from server");
+
+done:
+	if (nstoken)
+		close_netns(nstoken);
+	if (listen_fd >= 0)
+		close(listen_fd);
+	if (accept_fd >= 0)
+		close(accept_fd);
+	if (client_fd >= 0)
+		close(client_fd);
+}
+
+static int test_ping(int family, const char *addr)
+{
+	SYS(fail, "ip netns exec " NS_SRC " %s " PING_ARGS " %s > /dev/null", ping_command(family), addr);
+	return 0;
+fail:
+	return -1;
+}
+
+static void test_connectivity(void)
+{
+	test_tcp(AF_INET, IP4_DST, IP4_PORT);
+	test_ping(AF_INET, IP4_DST);
+	test_tcp(AF_INET6, IP6_DST, IP6_PORT);
+	test_ping(AF_INET6, IP6_DST);
+}
+
+static int set_forwarding(bool enable)
+{
+	int err;
+
+	err = write_file("/proc/sys/net/ipv4/ip_forward", enable ? "1" : "0");
+	if (!ASSERT_OK(err, "set ipv4.ip_forward=0"))
+		return err;
+
+	err = write_file("/proc/sys/net/ipv6/conf/all/forwarding", enable ? "1" : "0");
+	if (!ASSERT_OK(err, "set ipv6.forwarding=0"))
+		return err;
+
+	return 0;
+}
+
+static int __rcv_tstamp(int fd, const char *expected, size_t s, __u64 *tstamp)
+{
+	struct timespec pkt_ts = {};
+	char ctl[CMSG_SPACE(sizeof(pkt_ts))];
+	struct timespec now_ts;
+	struct msghdr msg = {};
+	__u64 now_ns, pkt_ns;
+	struct cmsghdr *cmsg;
+	struct iovec iov;
+	char data[32];
+	int ret;
+
+	iov.iov_base = data;
+	iov.iov_len = sizeof(data);
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = &ctl;
+	msg.msg_controllen = sizeof(ctl);
+
+	ret = recvmsg(fd, &msg, 0);
+	if (!ASSERT_EQ(ret, s, "recvmsg"))
+		return -1;
+	ASSERT_STRNEQ(data, expected, s, "expected rcv data");
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	if (cmsg && cmsg->cmsg_level == SOL_SOCKET &&
+	    cmsg->cmsg_type == SO_TIMESTAMPNS)
+		memcpy(&pkt_ts, CMSG_DATA(cmsg), sizeof(pkt_ts));
+
+	pkt_ns = pkt_ts.tv_sec * NSEC_PER_SEC + pkt_ts.tv_nsec;
+	if (tstamp) {
+		/* caller will check the tstamp itself */
+		*tstamp = pkt_ns;
+		return 0;
+	}
+
+	ASSERT_NEQ(pkt_ns, 0, "pkt rcv tstamp");
+
+	ret = clock_gettime(CLOCK_REALTIME, &now_ts);
+	ASSERT_OK(ret, "clock_gettime");
+	now_ns = now_ts.tv_sec * NSEC_PER_SEC + now_ts.tv_nsec;
+
+	if (ASSERT_GE(now_ns, pkt_ns, "check rcv tstamp"))
+		ASSERT_LT(now_ns - pkt_ns, 5 * NSEC_PER_SEC,
+			  "check rcv tstamp");
+	return 0;
+}
+
+static void rcv_tstamp(int fd, const char *expected, size_t s)
+{
+	__rcv_tstamp(fd, expected, s, NULL);
+}
+
+static int wait_netstamp_needed_key(void)
+{
+	int opt = 1, srv_fd = -1, cli_fd = -1, nretries = 0, err, n;
+	char buf[] = "testing testing";
+	struct nstoken *nstoken;
+	__u64 tstamp = 0;
+
+	nstoken = open_netns(NS_DST);
+	if (!ASSERT_OK_PTR(nstoken, "setns dst"))
+		return -1;
+
+	srv_fd = start_server(AF_INET6, SOCK_DGRAM, "::1", 0, 0);
+	if (!ASSERT_GE(srv_fd, 0, "start_server"))
+		goto done;
+
+	err = setsockopt(srv_fd, SOL_SOCKET, SO_TIMESTAMPNS,
+			 &opt, sizeof(opt));
+	if (!ASSERT_OK(err, "setsockopt(SO_TIMESTAMPNS)"))
+		goto done;
+
+	cli_fd = connect_to_fd(srv_fd, TIMEOUT_MILLIS);
+	if (!ASSERT_GE(cli_fd, 0, "connect_to_fd"))
+		goto done;
+
+again:
+	n = write(cli_fd, buf, sizeof(buf));
+	if (!ASSERT_EQ(n, sizeof(buf), "send to server"))
+		goto done;
+	err = __rcv_tstamp(srv_fd, buf, sizeof(buf), &tstamp);
+	if (!ASSERT_OK(err, "__rcv_tstamp"))
+		goto done;
+	if (!tstamp && nretries++ < 5) {
+		sleep(1);
+		printf("netstamp_needed_key retry#%d\n", nretries);
+		goto again;
+	}
+
+done:
+	if (!tstamp && srv_fd != -1) {
+		close(srv_fd);
+		srv_fd = -1;
+	}
+	if (cli_fd != -1)
+		close(cli_fd);
+	close_netns(nstoken);
+	return srv_fd;
+}
+
+static void snd_tstamp(int fd, char *b, size_t s)
+{
+	struct sock_txtime opt = { .clockid = CLOCK_TAI };
+	char ctl[CMSG_SPACE(sizeof(__u64))];
+	struct timespec now_ts;
+	struct msghdr msg = {};
+	struct cmsghdr *cmsg;
+	struct iovec iov;
+	__u64 now_ns;
+	int ret;
+
+	ret = clock_gettime(CLOCK_TAI, &now_ts);
+	ASSERT_OK(ret, "clock_get_time(CLOCK_TAI)");
+	now_ns = now_ts.tv_sec * NSEC_PER_SEC + now_ts.tv_nsec;
+
+	iov.iov_base = b;
+	iov.iov_len = s;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = &ctl;
+	msg.msg_controllen = sizeof(ctl);
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_type = SCM_TXTIME;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(now_ns));
+	*(__u64 *)CMSG_DATA(cmsg) = now_ns;
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_TXTIME, &opt, sizeof(opt));
+	ASSERT_OK(ret, "setsockopt(SO_TXTIME)");
+
+	ret = sendmsg(fd, &msg, 0);
+	ASSERT_EQ(ret, s, "sendmsg");
+}
+
+static void test_inet_dtime(int family, int type, const char *addr, __u16 port)
+{
+	int opt = 1, accept_fd = -1, client_fd = -1, listen_fd, err;
+	char buf[] = "testing testing";
+	struct nstoken *nstoken;
+
+	nstoken = open_netns(NS_DST);
+	if (!ASSERT_OK_PTR(nstoken, "setns dst"))
+		return;
+	listen_fd = start_server(family, type, addr, port, 0);
+	close_netns(nstoken);
+
+	if (!ASSERT_GE(listen_fd, 0, "listen"))
+		return;
+
+	/* Ensure the kernel puts the (rcv) timestamp for all skb */
+	err = setsockopt(listen_fd, SOL_SOCKET, SO_TIMESTAMPNS,
+			 &opt, sizeof(opt));
+	if (!ASSERT_OK(err, "setsockopt(SO_TIMESTAMPNS)"))
+		goto done;
+
+	if (type == SOCK_STREAM) {
+		/* Ensure the kernel set EDT when sending out rst/ack
+		 * from the kernel's ctl_sk.
+		 */
+		err = setsockopt(listen_fd, SOL_TCP, TCP_TX_DELAY, &opt,
+				 sizeof(opt));
+		if (!ASSERT_OK(err, "setsockopt(TCP_TX_DELAY)"))
+			goto done;
+	}
+
+	nstoken = open_netns(NS_SRC);
+	if (!ASSERT_OK_PTR(nstoken, "setns src"))
+		goto done;
+	client_fd = connect_to_fd(listen_fd, TIMEOUT_MILLIS);
+	close_netns(nstoken);
+
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto done;
+
+	if (type == SOCK_STREAM) {
+		int n;
+
+		accept_fd = accept(listen_fd, NULL, NULL);
+		if (!ASSERT_GE(accept_fd, 0, "accept"))
+			goto done;
+
+		n = write(client_fd, buf, sizeof(buf));
+		if (!ASSERT_EQ(n, sizeof(buf), "send to server"))
+			goto done;
+		rcv_tstamp(accept_fd, buf, sizeof(buf));
+	} else {
+		snd_tstamp(client_fd, buf, sizeof(buf));
+		rcv_tstamp(listen_fd, buf, sizeof(buf));
+	}
+
+done:
+	close(listen_fd);
+	if (accept_fd != -1)
+		close(accept_fd);
+	if (client_fd != -1)
+		close(client_fd);
+}
+
+static int netns_load_dtime_bpf(struct test_tc_dtime *skel,
+				const struct netns_setup_result *setup_result)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_src_fwd);
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd);
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_src);
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_dst);
+	struct nstoken *nstoken;
+	int err;
+
+	/* setup ns_src tc progs */
+	nstoken = open_netns(NS_SRC);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS_SRC))
+		return -1;
+	/* tc qdisc add dev src clsact */
+	QDISC_CLSACT_CREATE(&qdisc_src, setup_result->ifindex_src);
+	/* tc filter add dev src ingress bpf da ingress_host */
+	XGRESS_FILTER_ADD(&qdisc_src, BPF_TC_INGRESS, skel->progs.ingress_host, 0);
+	/* tc filter add dev src egress bpf da egress_host */
+	XGRESS_FILTER_ADD(&qdisc_src, BPF_TC_EGRESS, skel->progs.egress_host, 0);
+	close_netns(nstoken);
+
+	/* setup ns_dst tc progs */
+	nstoken = open_netns(NS_DST);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS_DST))
+		return -1;
+	/* tc qdisc add dev dst clsact */
+	QDISC_CLSACT_CREATE(&qdisc_dst, setup_result->ifindex_dst);
+	/* tc filter add dev dst ingress bpf da ingress_host */
+	XGRESS_FILTER_ADD(&qdisc_dst, BPF_TC_INGRESS, skel->progs.ingress_host, 0);
+	/* tc filter add dev dst egress bpf da egress_host */
+	XGRESS_FILTER_ADD(&qdisc_dst, BPF_TC_EGRESS, skel->progs.egress_host, 0);
+	close_netns(nstoken);
+
+	/* setup ns_fwd tc progs */
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS_FWD))
+		return -1;
+	/* tc qdisc add dev dst_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd);
+	/* tc filter add dev dst_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS,
+			  skel->progs.ingress_fwdns_prio100, 100);
+	/* tc filter add dev dst_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS,
+			  skel->progs.ingress_fwdns_prio101, 101);
+	/* tc filter add dev dst_fwd egress prio 100 bpf da egress_fwdns_prio100 */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS,
+			  skel->progs.egress_fwdns_prio100, 100);
+	/* tc filter add dev dst_fwd egress prio 101 bpf da egress_fwdns_prio101 */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS,
+			  skel->progs.egress_fwdns_prio101, 101);
+
+	/* tc qdisc add dev src_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_src_fwd, setup_result->ifindex_src_fwd);
+	/* tc filter add dev src_fwd ingress prio 100 bpf da ingress_fwdns_prio100 */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS,
+			  skel->progs.ingress_fwdns_prio100, 100);
+	/* tc filter add dev src_fwd ingress prio 101 bpf da ingress_fwdns_prio101 */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_INGRESS,
+			  skel->progs.ingress_fwdns_prio101, 101);
+	/* tc filter add dev src_fwd egress prio 100 bpf da egress_fwdns_prio100 */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS,
+			  skel->progs.egress_fwdns_prio100, 100);
+	/* tc filter add dev src_fwd egress prio 101 bpf da egress_fwdns_prio101 */
+	XGRESS_FILTER_ADD(&qdisc_src_fwd, BPF_TC_EGRESS,
+			  skel->progs.egress_fwdns_prio101, 101);
+	close_netns(nstoken);
+	return 0;
+
+fail:
+	close_netns(nstoken);
+	return err;
+}
+
+enum {
+	INGRESS_FWDNS_P100,
+	INGRESS_FWDNS_P101,
+	EGRESS_FWDNS_P100,
+	EGRESS_FWDNS_P101,
+	INGRESS_ENDHOST,
+	EGRESS_ENDHOST,
+	SET_DTIME,
+	__MAX_CNT,
+};
+
+const char *cnt_names[] = {
+	"ingress_fwdns_p100",
+	"ingress_fwdns_p101",
+	"egress_fwdns_p100",
+	"egress_fwdns_p101",
+	"ingress_endhost",
+	"egress_endhost",
+	"set_dtime",
+};
+
+enum {
+	TCP_IP6_CLEAR_DTIME,
+	TCP_IP4,
+	TCP_IP6,
+	UDP_IP4,
+	UDP_IP6,
+	TCP_IP4_RT_FWD,
+	TCP_IP6_RT_FWD,
+	UDP_IP4_RT_FWD,
+	UDP_IP6_RT_FWD,
+	UKN_TEST,
+	__NR_TESTS,
+};
+
+const char *test_names[] = {
+	"tcp ip6 clear dtime",
+	"tcp ip4",
+	"tcp ip6",
+	"udp ip4",
+	"udp ip6",
+	"tcp ip4 rt fwd",
+	"tcp ip6 rt fwd",
+	"udp ip4 rt fwd",
+	"udp ip6 rt fwd",
+};
+
+static const char *dtime_cnt_str(int test, int cnt)
+{
+	static char name[64];
+
+	snprintf(name, sizeof(name), "%s %s", test_names[test], cnt_names[cnt]);
+
+	return name;
+}
+
+static const char *dtime_err_str(int test, int cnt)
+{
+	static char name[64];
+
+	snprintf(name, sizeof(name), "%s %s errs", test_names[test],
+		 cnt_names[cnt]);
+
+	return name;
+}
+
+static void test_tcp_clear_dtime(struct test_tc_dtime *skel)
+{
+	int i, t = TCP_IP6_CLEAR_DTIME;
+	__u32 *dtimes = skel->bss->dtimes[t];
+	__u32 *errs = skel->bss->errs[t];
+
+	skel->bss->test = t;
+	test_inet_dtime(AF_INET6, SOCK_STREAM, IP6_DST, 50000 + t);
+
+	ASSERT_EQ(dtimes[INGRESS_FWDNS_P100], 0,
+		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
+	ASSERT_EQ(dtimes[INGRESS_FWDNS_P101], 0,
+		  dtime_cnt_str(t, INGRESS_FWDNS_P101));
+	ASSERT_GT(dtimes[EGRESS_FWDNS_P100], 0,
+		  dtime_cnt_str(t, EGRESS_FWDNS_P100));
+	ASSERT_EQ(dtimes[EGRESS_FWDNS_P101], 0,
+		  dtime_cnt_str(t, EGRESS_FWDNS_P101));
+	ASSERT_GT(dtimes[EGRESS_ENDHOST], 0,
+		  dtime_cnt_str(t, EGRESS_ENDHOST));
+	ASSERT_GT(dtimes[INGRESS_ENDHOST], 0,
+		  dtime_cnt_str(t, INGRESS_ENDHOST));
+
+	for (i = INGRESS_FWDNS_P100; i < __MAX_CNT; i++)
+		ASSERT_EQ(errs[i], 0, dtime_err_str(t, i));
+}
+
+static void test_tcp_dtime(struct test_tc_dtime *skel, int family, bool bpf_fwd)
+{
+	__u32 *dtimes, *errs;
+	const char *addr;
+	int i, t;
+
+	if (family == AF_INET) {
+		t = bpf_fwd ? TCP_IP4 : TCP_IP4_RT_FWD;
+		addr = IP4_DST;
+	} else {
+		t = bpf_fwd ? TCP_IP6 : TCP_IP6_RT_FWD;
+		addr = IP6_DST;
+	}
+
+	dtimes = skel->bss->dtimes[t];
+	errs = skel->bss->errs[t];
+
+	skel->bss->test = t;
+	test_inet_dtime(family, SOCK_STREAM, addr, 50000 + t);
+
+	/* fwdns_prio100 prog does not read delivery_time_type, so
+	 * kernel puts the (rcv) timestamp in __sk_buff->tstamp
+	 */
+	ASSERT_EQ(dtimes[INGRESS_FWDNS_P100], 0,
+		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
+	for (i = INGRESS_FWDNS_P101; i < SET_DTIME; i++)
+		ASSERT_GT(dtimes[i], 0, dtime_cnt_str(t, i));
+
+	for (i = INGRESS_FWDNS_P100; i < __MAX_CNT; i++)
+		ASSERT_EQ(errs[i], 0, dtime_err_str(t, i));
+}
+
+static void test_udp_dtime(struct test_tc_dtime *skel, int family, bool bpf_fwd)
+{
+	__u32 *dtimes, *errs;
+	const char *addr;
+	int i, t;
+
+	if (family == AF_INET) {
+		t = bpf_fwd ? UDP_IP4 : UDP_IP4_RT_FWD;
+		addr = IP4_DST;
+	} else {
+		t = bpf_fwd ? UDP_IP6 : UDP_IP6_RT_FWD;
+		addr = IP6_DST;
+	}
+
+	dtimes = skel->bss->dtimes[t];
+	errs = skel->bss->errs[t];
+
+	skel->bss->test = t;
+	test_inet_dtime(family, SOCK_DGRAM, addr, 50000 + t);
+
+	ASSERT_EQ(dtimes[INGRESS_FWDNS_P100], 0,
+		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
+	for (i = EGRESS_FWDNS_P100; i < SET_DTIME; i++)
+		ASSERT_GT(dtimes[i], 0, dtime_cnt_str(t, i));
+
+	for (i = INGRESS_FWDNS_P100; i < __MAX_CNT; i++)
+		ASSERT_EQ(errs[i], 0, dtime_err_str(t, i));
+}
+
+static void test_tc_redirect_dtime(struct netns_setup_result *setup_result)
+{
+	struct test_tc_dtime *skel;
+	struct nstoken *nstoken;
+	int hold_tstamp_fd, err;
+
+	/* Hold a sk with the SOCK_TIMESTAMP set to ensure there
+	 * is no delay in the kernel net_enable_timestamp().
+	 * This ensures the following tests must have
+	 * non zero rcv tstamp in the recvmsg().
+	 */
+	hold_tstamp_fd = wait_netstamp_needed_key();
+	if (!ASSERT_GE(hold_tstamp_fd, 0, "wait_netstamp_needed_key"))
+		return;
+
+	skel = test_tc_dtime__open();
+	if (!ASSERT_OK_PTR(skel, "test_tc_dtime__open"))
+		goto done;
+
+	skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd;
+	skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;
+
+	err = test_tc_dtime__load(skel);
+	if (!ASSERT_OK(err, "test_tc_dtime__load"))
+		goto done;
+
+	if (netns_load_dtime_bpf(skel, setup_result))
+		goto done;
+
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		goto done;
+	err = set_forwarding(false);
+	close_netns(nstoken);
+	if (!ASSERT_OK(err, "disable forwarding"))
+		goto done;
+
+	test_tcp_clear_dtime(skel);
+
+	test_tcp_dtime(skel, AF_INET, true);
+	test_tcp_dtime(skel, AF_INET6, true);
+	test_udp_dtime(skel, AF_INET, true);
+	test_udp_dtime(skel, AF_INET6, true);
+
+	/* Test the kernel ip[6]_forward path instead
+	 * of bpf_redirect_neigh().
+	 */
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		goto done;
+	err = set_forwarding(true);
+	close_netns(nstoken);
+	if (!ASSERT_OK(err, "enable forwarding"))
+		goto done;
+
+	test_tcp_dtime(skel, AF_INET, false);
+	test_tcp_dtime(skel, AF_INET6, false);
+	test_udp_dtime(skel, AF_INET, false);
+	test_udp_dtime(skel, AF_INET6, false);
+
+done:
+	test_tc_dtime__destroy(skel);
+	close(hold_tstamp_fd);
+}
+
+static void test_tc_redirect_neigh_fib(struct netns_setup_result *setup_result)
+{
+	struct nstoken *nstoken = NULL;
+	struct test_tc_neigh_fib *skel = NULL;
+
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		return;
+
+	skel = test_tc_neigh_fib__open();
+	if (!ASSERT_OK_PTR(skel, "test_tc_neigh_fib__open"))
+		goto done;
+
+	if (!ASSERT_OK(test_tc_neigh_fib__load(skel), "test_tc_neigh_fib__load"))
+		goto done;
+
+	if (netns_load_bpf(skel->progs.tc_src, skel->progs.tc_dst,
+			   skel->progs.tc_chk, setup_result))
+		goto done;
+
+	/* bpf_fib_lookup() checks if forwarding is enabled */
+	if (!ASSERT_OK(set_forwarding(true), "enable forwarding"))
+		goto done;
+
+	test_connectivity();
+
+done:
+	if (skel)
+		test_tc_neigh_fib__destroy(skel);
+	close_netns(nstoken);
+}
+
+static void test_tc_redirect_neigh(struct netns_setup_result *setup_result)
+{
+	struct nstoken *nstoken = NULL;
+	struct test_tc_neigh *skel = NULL;
+	int err;
+
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		return;
+
+	skel = test_tc_neigh__open();
+	if (!ASSERT_OK_PTR(skel, "test_tc_neigh__open"))
+		goto done;
+
+	skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd;
+	skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;
+
+	err = test_tc_neigh__load(skel);
+	if (!ASSERT_OK(err, "test_tc_neigh__load"))
+		goto done;
+
+	if (netns_load_bpf(skel->progs.tc_src, skel->progs.tc_dst,
+			   skel->progs.tc_chk, setup_result))
+		goto done;
+
+	if (!ASSERT_OK(set_forwarding(false), "disable forwarding"))
+		goto done;
+
+	test_connectivity();
+
+done:
+	if (skel)
+		test_tc_neigh__destroy(skel);
+	close_netns(nstoken);
+}
+
+static void test_tc_redirect_peer(struct netns_setup_result *setup_result)
+{
+	struct nstoken *nstoken;
+	struct test_tc_peer *skel;
+	int err;
+
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns fwd"))
+		return;
+
+	skel = test_tc_peer__open();
+	if (!ASSERT_OK_PTR(skel, "test_tc_peer__open"))
+		goto done;
+
+	skel->rodata->IFINDEX_SRC = setup_result->ifindex_src_fwd;
+	skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;
+
+	err = test_tc_peer__load(skel);
+	if (!ASSERT_OK(err, "test_tc_peer__load"))
+		goto done;
+
+	if (netns_load_bpf(skel->progs.tc_src, skel->progs.tc_dst,
+			   skel->progs.tc_chk, setup_result))
+		goto done;
+
+	if (!ASSERT_OK(set_forwarding(false), "disable forwarding"))
+		goto done;
+
+	test_connectivity();
+
+done:
+	if (skel)
+		test_tc_peer__destroy(skel);
+	close_netns(nstoken);
+}
+
+static int tun_open(char *name)
+{
+	struct ifreq ifr;
+	int fd, err;
+
+	fd = open("/dev/net/tun", O_RDWR);
+	if (!ASSERT_GE(fd, 0, "open /dev/net/tun"))
+		return -1;
+
+	memset(&ifr, 0, sizeof(ifr));
+
+	ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
+	if (*name)
+		strncpy(ifr.ifr_name, name, IFNAMSIZ);
+
+	err = ioctl(fd, TUNSETIFF, &ifr);
+	if (!ASSERT_OK(err, "ioctl TUNSETIFF"))
+		goto fail;
+
+	SYS(fail, "ip link set dev %s up", name);
+
+	return fd;
+fail:
+	close(fd);
+	return -1;
+}
+
+enum {
+	SRC_TO_TARGET = 0,
+	TARGET_TO_SRC = 1,
+};
+
+static int tun_relay_loop(int src_fd, int target_fd)
+{
+	fd_set rfds, wfds;
+
+	FD_ZERO(&rfds);
+	FD_ZERO(&wfds);
+
+	for (;;) {
+		char buf[1500];
+		int direction, nread, nwrite;
+
+		FD_SET(src_fd, &rfds);
+		FD_SET(target_fd, &rfds);
+
+		if (select(1 + MAX(src_fd, target_fd), &rfds, NULL, NULL, NULL) < 0) {
+			log_err("select failed");
+			return 1;
+		}
+
+		direction = FD_ISSET(src_fd, &rfds) ? SRC_TO_TARGET : TARGET_TO_SRC;
+
+		nread = read(direction == SRC_TO_TARGET ? src_fd : target_fd, buf, sizeof(buf));
+		if (nread < 0) {
+			log_err("read failed");
+			return 1;
+		}
+
+		nwrite = write(direction == SRC_TO_TARGET ? target_fd : src_fd, buf, nread);
+		if (nwrite != nread) {
+			log_err("write failed");
+			return 1;
+		}
+	}
+}
+
+static void test_tc_redirect_peer_l3(struct netns_setup_result *setup_result)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_tun_fwd);
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_dst_fwd);
+	struct test_tc_peer *skel = NULL;
+	struct nstoken *nstoken = NULL;
+	int err;
+	int tunnel_pid = -1;
+	int src_fd, target_fd = -1;
+	int ifindex;
+
+	/* Start a L3 TUN/TAP tunnel between the src and dst namespaces.
+	 * This test is using TUN/TAP instead of e.g. IPIP or GRE tunnel as those
+	 * expose the L2 headers encapsulating the IP packet to BPF and hence
+	 * don't have skb in suitable state for this test. Alternative to TUN/TAP
+	 * would be e.g. Wireguard which would appear as a pure L3 device to BPF,
+	 * but that requires much more complicated setup.
+	 */
+	nstoken = open_netns(NS_SRC);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS_SRC))
+		return;
+
+	src_fd = tun_open("tun_src");
+	if (!ASSERT_GE(src_fd, 0, "tun_open tun_src"))
+		goto fail;
+
+	close_netns(nstoken);
+
+	nstoken = open_netns(NS_FWD);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS_FWD))
+		goto fail;
+
+	target_fd = tun_open("tun_fwd");
+	if (!ASSERT_GE(target_fd, 0, "tun_open tun_fwd"))
+		goto fail;
+
+	tunnel_pid = fork();
+	if (!ASSERT_GE(tunnel_pid, 0, "fork tun_relay_loop"))
+		goto fail;
+
+	if (tunnel_pid == 0)
+		exit(tun_relay_loop(src_fd, target_fd));
+
+	skel = test_tc_peer__open();
+	if (!ASSERT_OK_PTR(skel, "test_tc_peer__open"))
+		goto fail;
+
+	ifindex = if_nametoindex("tun_fwd");
+	if (!ASSERT_GT(ifindex, 0, "if_indextoname tun_fwd"))
+		goto fail;
+
+	skel->rodata->IFINDEX_SRC = ifindex;
+	skel->rodata->IFINDEX_DST = setup_result->ifindex_dst_fwd;
+
+	err = test_tc_peer__load(skel);
+	if (!ASSERT_OK(err, "test_tc_peer__load"))
+		goto fail;
+
+	/* Load "tc_src_l3" to the tun_fwd interface to redirect packets
+	 * towards dst, and "tc_dst" to redirect packets
+	 * and "tc_chk" on dst_fwd to drop non-redirected packets.
+	 */
+	/* tc qdisc add dev tun_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_tun_fwd, ifindex);
+	/* tc filter add dev tun_fwd ingress bpf da tc_src_l3 */
+	XGRESS_FILTER_ADD(&qdisc_tun_fwd, BPF_TC_INGRESS, skel->progs.tc_src_l3, 0);
+
+	/* tc qdisc add dev dst_fwd clsact */
+	QDISC_CLSACT_CREATE(&qdisc_dst_fwd, setup_result->ifindex_dst_fwd);
+	/* tc filter add dev dst_fwd ingress bpf da tc_dst_l3 */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_INGRESS, skel->progs.tc_dst_l3, 0);
+	/* tc filter add dev dst_fwd egress bpf da tc_chk */
+	XGRESS_FILTER_ADD(&qdisc_dst_fwd, BPF_TC_EGRESS, skel->progs.tc_chk, 0);
+
+	/* Setup route and neigh tables */
+	SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP4_TUN_SRC "/24");
+	SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP4_TUN_FWD "/24");
+
+	SYS(fail, "ip -netns " NS_SRC " addr add dev tun_src " IP6_TUN_SRC "/64 nodad");
+	SYS(fail, "ip -netns " NS_FWD " addr add dev tun_fwd " IP6_TUN_FWD "/64 nodad");
+
+	SYS(fail, "ip -netns " NS_SRC " route del " IP4_DST "/32 dev src scope global");
+	SYS(fail, "ip -netns " NS_SRC " route add " IP4_DST "/32 via " IP4_TUN_FWD
+	    " dev tun_src scope global");
+	SYS(fail, "ip -netns " NS_DST " route add " IP4_TUN_SRC "/32 dev dst scope global");
+	SYS(fail, "ip -netns " NS_SRC " route del " IP6_DST "/128 dev src scope global");
+	SYS(fail, "ip -netns " NS_SRC " route add " IP6_DST "/128 via " IP6_TUN_FWD
+	    " dev tun_src scope global");
+	SYS(fail, "ip -netns " NS_DST " route add " IP6_TUN_SRC "/128 dev dst scope global");
+
+	SYS(fail, "ip -netns " NS_DST " neigh add " IP4_TUN_SRC " dev dst lladdr " MAC_DST_FWD);
+	SYS(fail, "ip -netns " NS_DST " neigh add " IP6_TUN_SRC " dev dst lladdr " MAC_DST_FWD);
+
+	if (!ASSERT_OK(set_forwarding(false), "disable forwarding"))
+		goto fail;
+
+	test_connectivity();
+
+fail:
+	if (tunnel_pid > 0) {
+		kill(tunnel_pid, SIGTERM);
+		waitpid(tunnel_pid, NULL, 0);
+	}
+	if (src_fd >= 0)
+		close(src_fd);
+	if (target_fd >= 0)
+		close(target_fd);
+	if (skel)
+		test_tc_peer__destroy(skel);
+	if (nstoken)
+		close_netns(nstoken);
+}
+
+#define RUN_TEST(name, mode)                                                                \
+	({                                                                                  \
+		struct netns_setup_result setup_result = { .dev_mode = mode, };             \
+		if (test__start_subtest(#name))                                             \
+			if (ASSERT_OK(netns_setup_namespaces("add"), "setup namespaces")) { \
+				if (ASSERT_OK(netns_setup_links_and_routes(&setup_result),  \
+					      "setup links and routes"))                    \
+					test_ ## name(&setup_result);                       \
+				netns_setup_namespaces("delete");                           \
+			}                                                                   \
+	})
+
+static void *test_tc_redirect_run_tests(void *arg)
+{
+	netns_setup_namespaces_nofail("delete");
+
+	RUN_TEST(tc_redirect_peer, MODE_VETH);
+	RUN_TEST(tc_redirect_peer, MODE_NETKIT);
+	RUN_TEST(tc_redirect_peer_l3, MODE_VETH);
+	RUN_TEST(tc_redirect_peer_l3, MODE_NETKIT);
+	RUN_TEST(tc_redirect_neigh, MODE_VETH);
+	RUN_TEST(tc_redirect_neigh_fib, MODE_VETH);
+	RUN_TEST(tc_redirect_dtime, MODE_VETH);
+	return NULL;
+}
+
+void test_tc_redirect(void)
+{
+	pthread_t test_thread;
+	int err;
+
+	/* Run the tests in their own thread to isolate the namespace changes
+	 * so they do not affect the environment of other tests.
+	 * (specifically needed because of unshare(CLONE_NEWNS) in open_netns())
+	 */
+	err = pthread_create(&test_thread, NULL, &test_tc_redirect_run_tests, NULL);
+	if (ASSERT_OK(err, "pthread_create"))
+		ASSERT_OK(pthread_join(test_thread, NULL), "pthread_join");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c b/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c
new file mode 100644
index 000000000000..eaf441dc7e79
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_custom_syncookie.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdlib.h>
+#include <net/if.h>
+
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "test_tcp_custom_syncookie.skel.h"
+
+static struct test_tcp_custom_syncookie_case {
+	int family, type;
+	char addr[16];
+	char name[10];
+} test_cases[] = {
+	{
+		.name = "IPv4 TCP",
+		.family = AF_INET,
+		.type = SOCK_STREAM,
+		.addr = "127.0.0.1",
+	},
+	{
+		.name = "IPv6 TCP",
+		.family = AF_INET6,
+		.type = SOCK_STREAM,
+		.addr = "::1",
+	},
+};
+
+static int setup_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "ip"))
+		goto err;
+
+	if (!ASSERT_OK(write_sysctl("/proc/sys/net/ipv4/tcp_ecn", "1"),
+		       "write_sysctl"))
+		goto err;
+
+	return 0;
+err:
+	return -1;
+}
+
+static int setup_tc(struct test_tcp_custom_syncookie *skel)
+{
+	LIBBPF_OPTS(bpf_tc_hook, qdisc_lo, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_attach,
+		    .prog_fd = bpf_program__fd(skel->progs.tcp_custom_syncookie));
+
+	qdisc_lo.ifindex = if_nametoindex("lo");
+	if (!ASSERT_OK(bpf_tc_hook_create(&qdisc_lo), "qdisc add dev lo clsact"))
+		goto err;
+
+	if (!ASSERT_OK(bpf_tc_attach(&qdisc_lo, &tc_attach),
+		       "filter add dev lo ingress"))
+		goto err;
+
+	return 0;
+err:
+	return -1;
+}
+
+#define msg "Hello World"
+#define msglen 11
+
+static void transfer_message(int sender, int receiver)
+{
+	char buf[msglen];
+	int ret;
+
+	ret = send(sender, msg, msglen, 0);
+	if (!ASSERT_EQ(ret, msglen, "send"))
+		return;
+
+	memset(buf, 0, sizeof(buf));
+
+	ret = recv(receiver, buf, msglen, 0);
+	if (!ASSERT_EQ(ret, msglen, "recv"))
+		return;
+
+	ret = strncmp(buf, msg, msglen);
+	if (!ASSERT_EQ(ret, 0, "strncmp"))
+		return;
+}
+
+static void create_connection(struct test_tcp_custom_syncookie_case *test_case)
+{
+	int server, client, child;
+
+	server = start_server(test_case->family, test_case->type, test_case->addr, 0, 0);
+	if (!ASSERT_NEQ(server, -1, "start_server"))
+		return;
+
+	client = connect_to_fd(server, 0);
+	if (!ASSERT_NEQ(client, -1, "connect_to_fd"))
+		goto close_server;
+
+	child = accept(server, NULL, 0);
+	if (!ASSERT_NEQ(child, -1, "accept"))
+		goto close_client;
+
+	transfer_message(client, child);
+	transfer_message(child, client);
+
+	close(child);
+close_client:
+	close(client);
+close_server:
+	close(server);
+}
+
+void test_tcp_custom_syncookie(void)
+{
+	struct test_tcp_custom_syncookie *skel;
+	int i;
+
+	if (setup_netns())
+		return;
+
+	skel = test_tcp_custom_syncookie__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	if (setup_tc(skel))
+		goto destroy_skel;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		if (!test__start_subtest(test_cases[i].name))
+			continue;
+
+		skel->bss->handled_syn = false;
+		skel->bss->handled_ack = false;
+
+		create_connection(&test_cases[i]);
+
+		ASSERT_EQ(skel->bss->handled_syn, true, "SYN is not handled at tc.");
+		ASSERT_EQ(skel->bss->handled_ack, true, "ACK is not handled at tc");
+	}
+
+destroy_skel:
+	system("tc qdisc del dev lo clsact");
+
+	test_tcp_custom_syncookie__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_estats.c b/tools/testing/selftests/bpf/prog_tests/tcp_estats.c
new file mode 100644
index 000000000000..e070bca2b764
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_estats.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_tcp_estats(void)
+{
+	const char *file = "./test_tcp_estats.bpf.o";
+	int err, prog_fd;
+	struct bpf_object *obj;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_TRACEPOINT, &obj, &prog_fd);
+	if (!ASSERT_OK(err, ""))
+		return;
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c b/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c
new file mode 100644
index 000000000000..56685fc03c7e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_hdr_options.c
@@ -0,0 +1,563 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <linux/compiler.h>
+
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "test_tcp_hdr_options.h"
+#include "test_tcp_hdr_options.skel.h"
+#include "test_misc_tcp_hdr_options.skel.h"
+
+#define LO_ADDR6 "::1"
+#define CG_NAME "/tcpbpf-hdr-opt-test"
+
+static struct bpf_test_option exp_passive_estab_in;
+static struct bpf_test_option exp_active_estab_in;
+static struct bpf_test_option exp_passive_fin_in;
+static struct bpf_test_option exp_active_fin_in;
+static struct hdr_stg exp_passive_hdr_stg;
+static struct hdr_stg exp_active_hdr_stg = { .active = true, };
+
+static struct test_misc_tcp_hdr_options *misc_skel;
+static struct test_tcp_hdr_options *skel;
+static int lport_linum_map_fd;
+static int hdr_stg_map_fd;
+static __u32 duration;
+static int cg_fd;
+
+struct sk_fds {
+	int srv_fd;
+	int passive_fd;
+	int active_fd;
+	int passive_lport;
+	int active_lport;
+};
+
+static int create_netns(void)
+{
+	if (!ASSERT_OK(unshare(CLONE_NEWNET), "create netns"))
+		return -1;
+
+	if (!ASSERT_OK(system("ip link set dev lo up"), "run ip cmd"))
+		return -1;
+
+	return 0;
+}
+
+static void print_hdr_stg(const struct hdr_stg *hdr_stg, const char *prefix)
+{
+	fprintf(stderr, "%s{active:%u, resend_syn:%u, syncookie:%u, fastopen:%u}\n",
+		prefix ? : "", hdr_stg->active, hdr_stg->resend_syn,
+		hdr_stg->syncookie, hdr_stg->fastopen);
+}
+
+static void print_option(const struct bpf_test_option *opt, const char *prefix)
+{
+	fprintf(stderr, "%s{flags:0x%x, max_delack_ms:%u, rand:0x%x}\n",
+		prefix ? : "", opt->flags, opt->max_delack_ms, opt->rand);
+}
+
+static void sk_fds_close(struct sk_fds *sk_fds)
+{
+	close(sk_fds->srv_fd);
+	close(sk_fds->passive_fd);
+	close(sk_fds->active_fd);
+}
+
+static int sk_fds_shutdown(struct sk_fds *sk_fds)
+{
+	int ret, abyte;
+
+	shutdown(sk_fds->active_fd, SHUT_WR);
+	ret = read(sk_fds->passive_fd, &abyte, sizeof(abyte));
+	if (!ASSERT_EQ(ret, 0, "read-after-shutdown(passive_fd):"))
+		return -1;
+
+	shutdown(sk_fds->passive_fd, SHUT_WR);
+	ret = read(sk_fds->active_fd, &abyte, sizeof(abyte));
+	if (!ASSERT_EQ(ret, 0, "read-after-shutdown(active_fd):"))
+		return -1;
+
+	return 0;
+}
+
+static int sk_fds_connect(struct sk_fds *sk_fds, bool fast_open)
+{
+	const char fast[] = "FAST!!!";
+	struct sockaddr_in6 addr6;
+	socklen_t len;
+
+	sk_fds->srv_fd = start_server(AF_INET6, SOCK_STREAM, LO_ADDR6, 0, 0);
+	if (!ASSERT_NEQ(sk_fds->srv_fd, -1, "start_server"))
+		goto error;
+
+	if (fast_open)
+		sk_fds->active_fd = fastopen_connect(sk_fds->srv_fd, fast,
+						     sizeof(fast), 0);
+	else
+		sk_fds->active_fd = connect_to_fd(sk_fds->srv_fd, 0);
+
+	if (!ASSERT_NEQ(sk_fds->active_fd, -1, "")) {
+		close(sk_fds->srv_fd);
+		goto error;
+	}
+
+	len = sizeof(addr6);
+	if (!ASSERT_OK(getsockname(sk_fds->srv_fd, (struct sockaddr *)&addr6,
+				   &len), "getsockname(srv_fd)"))
+		goto error_close;
+	sk_fds->passive_lport = ntohs(addr6.sin6_port);
+
+	len = sizeof(addr6);
+	if (!ASSERT_OK(getsockname(sk_fds->active_fd, (struct sockaddr *)&addr6,
+				   &len), "getsockname(active_fd)"))
+		goto error_close;
+	sk_fds->active_lport = ntohs(addr6.sin6_port);
+
+	sk_fds->passive_fd = accept(sk_fds->srv_fd, NULL, 0);
+	if (!ASSERT_NEQ(sk_fds->passive_fd, -1, "accept(srv_fd)"))
+		goto error_close;
+
+	if (fast_open) {
+		char bytes_in[sizeof(fast)];
+		int ret;
+
+		ret = read(sk_fds->passive_fd, bytes_in, sizeof(bytes_in));
+		if (!ASSERT_EQ(ret, sizeof(fast), "read fastopen syn data")) {
+			close(sk_fds->passive_fd);
+			goto error_close;
+		}
+	}
+
+	return 0;
+
+error_close:
+	close(sk_fds->active_fd);
+	close(sk_fds->srv_fd);
+
+error:
+	memset(sk_fds, -1, sizeof(*sk_fds));
+	return -1;
+}
+
+static int check_hdr_opt(const struct bpf_test_option *exp,
+			 const struct bpf_test_option *act,
+			 const char *hdr_desc)
+{
+	if (!ASSERT_EQ(memcmp(exp, act, sizeof(*exp)), 0, hdr_desc)) {
+		print_option(exp, "expected: ");
+		print_option(act, "  actual: ");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int check_hdr_stg(const struct hdr_stg *exp, int fd,
+			 const char *stg_desc)
+{
+	struct hdr_stg act;
+
+	if (!ASSERT_OK(bpf_map_lookup_elem(hdr_stg_map_fd, &fd, &act),
+		  "map_lookup(hdr_stg_map_fd)"))
+		return -1;
+
+	if (!ASSERT_EQ(memcmp(exp, &act, sizeof(*exp)), 0, stg_desc)) {
+		print_hdr_stg(exp, "expected: ");
+		print_hdr_stg(&act, "  actual: ");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int check_error_linum(const struct sk_fds *sk_fds)
+{
+	unsigned int nr_errors = 0;
+	struct linum_err linum_err;
+	int lport;
+
+	lport = sk_fds->passive_lport;
+	if (!bpf_map_lookup_elem(lport_linum_map_fd, &lport, &linum_err)) {
+		fprintf(stderr,
+			"bpf prog error out at lport:passive(%d), linum:%u err:%d\n",
+			lport, linum_err.linum, linum_err.err);
+		nr_errors++;
+	}
+
+	lport = sk_fds->active_lport;
+	if (!bpf_map_lookup_elem(lport_linum_map_fd, &lport, &linum_err)) {
+		fprintf(stderr,
+			"bpf prog error out at lport:active(%d), linum:%u err:%d\n",
+			lport, linum_err.linum, linum_err.err);
+		nr_errors++;
+	}
+
+	return nr_errors;
+}
+
+static void check_hdr_and_close_fds(struct sk_fds *sk_fds)
+{
+	const __u32 expected_inherit_cb_flags =
+		BPF_SOCK_OPS_PARSE_UNKNOWN_HDR_OPT_CB_FLAG |
+		BPF_SOCK_OPS_WRITE_HDR_OPT_CB_FLAG |
+		BPF_SOCK_OPS_STATE_CB_FLAG;
+
+	if (sk_fds_shutdown(sk_fds))
+		goto check_linum;
+
+	if (!ASSERT_EQ(expected_inherit_cb_flags, skel->bss->inherit_cb_flags,
+		       "inherit_cb_flags"))
+		goto check_linum;
+
+	if (check_hdr_stg(&exp_passive_hdr_stg, sk_fds->passive_fd,
+			  "passive_hdr_stg"))
+		goto check_linum;
+
+	if (check_hdr_stg(&exp_active_hdr_stg, sk_fds->active_fd,
+			  "active_hdr_stg"))
+		goto check_linum;
+
+	if (check_hdr_opt(&exp_passive_estab_in, &skel->bss->passive_estab_in,
+			  "passive_estab_in"))
+		goto check_linum;
+
+	if (check_hdr_opt(&exp_active_estab_in, &skel->bss->active_estab_in,
+			  "active_estab_in"))
+		goto check_linum;
+
+	if (check_hdr_opt(&exp_passive_fin_in, &skel->bss->passive_fin_in,
+			  "passive_fin_in"))
+		goto check_linum;
+
+	check_hdr_opt(&exp_active_fin_in, &skel->bss->active_fin_in,
+		      "active_fin_in");
+
+check_linum:
+	ASSERT_FALSE(check_error_linum(sk_fds), "check_error_linum");
+	sk_fds_close(sk_fds);
+}
+
+static void prepare_out(void)
+{
+	skel->bss->active_syn_out = exp_passive_estab_in;
+	skel->bss->passive_synack_out = exp_active_estab_in;
+
+	skel->bss->active_fin_out = exp_passive_fin_in;
+	skel->bss->passive_fin_out = exp_active_fin_in;
+}
+
+static void reset_test(void)
+{
+	size_t optsize = sizeof(struct bpf_test_option);
+	int lport, err;
+
+	memset(&skel->bss->passive_synack_out, 0, optsize);
+	memset(&skel->bss->passive_fin_out, 0, optsize);
+
+	memset(&skel->bss->passive_estab_in, 0, optsize);
+	memset(&skel->bss->passive_fin_in, 0, optsize);
+
+	memset(&skel->bss->active_syn_out, 0, optsize);
+	memset(&skel->bss->active_fin_out, 0, optsize);
+
+	memset(&skel->bss->active_estab_in, 0, optsize);
+	memset(&skel->bss->active_fin_in, 0, optsize);
+
+	skel->bss->inherit_cb_flags = 0;
+
+	skel->data->test_kind = TCPOPT_EXP;
+	skel->data->test_magic = 0xeB9F;
+
+	memset(&exp_passive_estab_in, 0, optsize);
+	memset(&exp_active_estab_in, 0, optsize);
+	memset(&exp_passive_fin_in, 0, optsize);
+	memset(&exp_active_fin_in, 0, optsize);
+
+	memset(&exp_passive_hdr_stg, 0, sizeof(exp_passive_hdr_stg));
+	memset(&exp_active_hdr_stg, 0, sizeof(exp_active_hdr_stg));
+	exp_active_hdr_stg.active = true;
+
+	err = bpf_map_get_next_key(lport_linum_map_fd, NULL, &lport);
+	while (!err) {
+		bpf_map_delete_elem(lport_linum_map_fd, &lport);
+		err = bpf_map_get_next_key(lport_linum_map_fd, &lport, &lport);
+	}
+}
+
+static void fastopen_estab(void)
+{
+	struct bpf_link *link;
+	struct sk_fds sk_fds;
+
+	hdr_stg_map_fd = bpf_map__fd(skel->maps.hdr_stg_map);
+	lport_linum_map_fd = bpf_map__fd(skel->maps.lport_linum_map);
+
+	exp_passive_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS;
+	exp_passive_estab_in.rand = 0xfa;
+	exp_passive_estab_in.max_delack_ms = 11;
+
+	exp_active_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS;
+	exp_active_estab_in.rand = 0xce;
+	exp_active_estab_in.max_delack_ms = 22;
+
+	exp_passive_hdr_stg.fastopen = true;
+
+	prepare_out();
+
+	/* Allow fastopen without fastopen cookie */
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_fastopen", "1543"))
+		return;
+
+	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
+		return;
+
+	if (sk_fds_connect(&sk_fds, true)) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	check_hdr_and_close_fds(&sk_fds);
+	bpf_link__destroy(link);
+}
+
+static void syncookie_estab(void)
+{
+	struct bpf_link *link;
+	struct sk_fds sk_fds;
+
+	hdr_stg_map_fd = bpf_map__fd(skel->maps.hdr_stg_map);
+	lport_linum_map_fd = bpf_map__fd(skel->maps.lport_linum_map);
+
+	exp_passive_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS;
+	exp_passive_estab_in.rand = 0xfa;
+	exp_passive_estab_in.max_delack_ms = 11;
+
+	exp_active_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS |
+					OPTION_F_RESEND;
+	exp_active_estab_in.rand = 0xce;
+	exp_active_estab_in.max_delack_ms = 22;
+
+	exp_passive_hdr_stg.syncookie = true;
+	exp_active_hdr_stg.resend_syn = true;
+
+	prepare_out();
+
+	/* Clear the RESEND to ensure the bpf prog can learn
+	 * want_cookie and set the RESEND by itself.
+	 */
+	skel->bss->passive_synack_out.flags &= ~OPTION_F_RESEND;
+
+	/* Enforce syncookie mode */
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_syncookies", "2"))
+		return;
+
+	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
+		return;
+
+	if (sk_fds_connect(&sk_fds, false)) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	check_hdr_and_close_fds(&sk_fds);
+	bpf_link__destroy(link);
+}
+
+static void fin(void)
+{
+	struct bpf_link *link;
+	struct sk_fds sk_fds;
+
+	hdr_stg_map_fd = bpf_map__fd(skel->maps.hdr_stg_map);
+	lport_linum_map_fd = bpf_map__fd(skel->maps.lport_linum_map);
+
+	exp_passive_fin_in.flags = OPTION_F_RAND;
+	exp_passive_fin_in.rand = 0xfa;
+
+	exp_active_fin_in.flags = OPTION_F_RAND;
+	exp_active_fin_in.rand = 0xce;
+
+	prepare_out();
+
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_syncookies", "1"))
+		return;
+
+	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
+		return;
+
+	if (sk_fds_connect(&sk_fds, false)) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	check_hdr_and_close_fds(&sk_fds);
+	bpf_link__destroy(link);
+}
+
+static void __simple_estab(bool exprm)
+{
+	struct bpf_link *link;
+	struct sk_fds sk_fds;
+
+	hdr_stg_map_fd = bpf_map__fd(skel->maps.hdr_stg_map);
+	lport_linum_map_fd = bpf_map__fd(skel->maps.lport_linum_map);
+
+	exp_passive_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS;
+	exp_passive_estab_in.rand = 0xfa;
+	exp_passive_estab_in.max_delack_ms = 11;
+
+	exp_active_estab_in.flags = OPTION_F_RAND | OPTION_F_MAX_DELACK_MS;
+	exp_active_estab_in.rand = 0xce;
+	exp_active_estab_in.max_delack_ms = 22;
+
+	prepare_out();
+
+	if (!exprm) {
+		skel->data->test_kind = 0xB9;
+		skel->data->test_magic = 0;
+	}
+
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_syncookies", "1"))
+		return;
+
+	link = bpf_program__attach_cgroup(skel->progs.estab, cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(estab)"))
+		return;
+
+	if (sk_fds_connect(&sk_fds, false)) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	check_hdr_and_close_fds(&sk_fds);
+	bpf_link__destroy(link);
+}
+
+static void no_exprm_estab(void)
+{
+	__simple_estab(false);
+}
+
+static void simple_estab(void)
+{
+	__simple_estab(true);
+}
+
+static void misc(void)
+{
+	const char send_msg[] = "MISC!!!";
+	char recv_msg[sizeof(send_msg)];
+	const unsigned int nr_data = 2;
+	struct bpf_link *link;
+	struct sk_fds sk_fds;
+	int i, ret;
+
+	lport_linum_map_fd = bpf_map__fd(misc_skel->maps.lport_linum_map);
+
+	if (write_sysctl("/proc/sys/net/ipv4/tcp_syncookies", "1"))
+		return;
+
+	link = bpf_program__attach_cgroup(misc_skel->progs.misc_estab, cg_fd);
+	if (!ASSERT_OK_PTR(link, "attach_cgroup(misc_estab)"))
+		return;
+
+	if (sk_fds_connect(&sk_fds, false)) {
+		bpf_link__destroy(link);
+		return;
+	}
+
+	for (i = 0; i < nr_data; i++) {
+		/* MSG_EOR to ensure skb will not be combined */
+		ret = send(sk_fds.active_fd, send_msg, sizeof(send_msg),
+			   MSG_EOR);
+		if (!ASSERT_EQ(ret, sizeof(send_msg), "send(msg)"))
+			goto check_linum;
+
+		ret = read(sk_fds.passive_fd, recv_msg, sizeof(recv_msg));
+		if (!ASSERT_EQ(ret, sizeof(send_msg), "read(msg)"))
+			goto check_linum;
+	}
+
+	if (sk_fds_shutdown(&sk_fds))
+		goto check_linum;
+
+	ASSERT_EQ(misc_skel->bss->nr_syn, 1, "unexpected nr_syn");
+
+	ASSERT_EQ(misc_skel->bss->nr_data, nr_data, "unexpected nr_data");
+
+	/* The last ACK may have been delayed, so it is either 1 or 2. */
+	CHECK(misc_skel->bss->nr_pure_ack != 1 &&
+	      misc_skel->bss->nr_pure_ack != 2,
+	      "unexpected nr_pure_ack",
+	      "expected (1 or 2) != actual (%u)\n",
+		misc_skel->bss->nr_pure_ack);
+
+	ASSERT_EQ(misc_skel->bss->nr_fin, 1, "unexpected nr_fin");
+
+	ASSERT_EQ(misc_skel->bss->nr_hwtstamp, 0, "nr_hwtstamp");
+
+check_linum:
+	ASSERT_FALSE(check_error_linum(&sk_fds), "check_error_linum");
+	sk_fds_close(&sk_fds);
+	bpf_link__destroy(link);
+}
+
+struct test {
+	const char *desc;
+	void (*run)(void);
+};
+
+#define DEF_TEST(name) { #name, name }
+static struct test tests[] = {
+	DEF_TEST(simple_estab),
+	DEF_TEST(no_exprm_estab),
+	DEF_TEST(syncookie_estab),
+	DEF_TEST(fastopen_estab),
+	DEF_TEST(fin),
+	DEF_TEST(misc),
+};
+
+void test_tcp_hdr_options(void)
+{
+	int i;
+
+	skel = test_tcp_hdr_options__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skel"))
+		return;
+
+	misc_skel = test_misc_tcp_hdr_options__open_and_load();
+	if (!ASSERT_OK_PTR(misc_skel, "open and load misc test skel"))
+		goto skel_destroy;
+
+	cg_fd = test__join_cgroup(CG_NAME);
+	if (!ASSERT_GE(cg_fd, 0, "join_cgroup"))
+		goto skel_destroy;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (!test__start_subtest(tests[i].desc))
+			continue;
+
+		if (create_netns())
+			break;
+
+		tests[i].run();
+
+		reset_test();
+	}
+
+	close(cg_fd);
+skel_destroy:
+	test_misc_tcp_hdr_options__destroy(misc_skel);
+	test_tcp_hdr_options__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c
new file mode 100644
index 000000000000..c38784c1c066
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tcp_rtt.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+#include "tcp_rtt.skel.h"
+
+struct tcp_rtt_storage {
+	__u32 invoked;
+	__u32 dsack_dups;
+	__u32 delivered;
+	__u32 delivered_ce;
+	__u32 icsk_retransmits;
+
+	__u32 mrtt_us;	/* args[0] */
+	__u32 srtt;	/* args[1] */
+};
+
+static void send_byte(int fd)
+{
+	char b = 0x55;
+
+	ASSERT_EQ(write(fd, &b, sizeof(b)), 1, "send single byte");
+}
+
+static int wait_for_ack(int fd, int retries)
+{
+	struct tcp_info info;
+	socklen_t optlen;
+	int i, err;
+
+	for (i = 0; i < retries; i++) {
+		optlen = sizeof(info);
+		err = getsockopt(fd, SOL_TCP, TCP_INFO, &info, &optlen);
+		if (err < 0) {
+			log_err("Failed to lookup TCP stats");
+			return err;
+		}
+
+		if (info.tcpi_unacked == 0)
+			return 0;
+
+		usleep(10);
+	}
+
+	log_err("Did not receive ACK");
+	return -1;
+}
+
+static int verify_sk(int map_fd, int client_fd, const char *msg, __u32 invoked,
+		     __u32 dsack_dups, __u32 delivered, __u32 delivered_ce,
+		     __u32 icsk_retransmits)
+{
+	int err = 0;
+	struct tcp_rtt_storage val;
+
+	if (!ASSERT_GE(bpf_map_lookup_elem(map_fd, &client_fd, &val), 0, "read socket storage"))
+		return -1;
+
+	if (val.invoked != invoked) {
+		log_err("%s: unexpected bpf_tcp_sock.invoked %d != %d",
+			msg, val.invoked, invoked);
+		err++;
+	}
+
+	if (val.dsack_dups != dsack_dups) {
+		log_err("%s: unexpected bpf_tcp_sock.dsack_dups %d != %d",
+			msg, val.dsack_dups, dsack_dups);
+		err++;
+	}
+
+	if (val.delivered != delivered) {
+		log_err("%s: unexpected bpf_tcp_sock.delivered %d != %d",
+			msg, val.delivered, delivered);
+		err++;
+	}
+
+	if (val.delivered_ce != delivered_ce) {
+		log_err("%s: unexpected bpf_tcp_sock.delivered_ce %d != %d",
+			msg, val.delivered_ce, delivered_ce);
+		err++;
+	}
+
+	if (val.icsk_retransmits != icsk_retransmits) {
+		log_err("%s: unexpected bpf_tcp_sock.icsk_retransmits %d != %d",
+			msg, val.icsk_retransmits, icsk_retransmits);
+		err++;
+	}
+
+	/* Precise values of mrtt and srtt are unavailable, just make sure they are nonzero */
+	if (val.mrtt_us == 0) {
+		log_err("%s: unexpected bpf_tcp_sock.args[0] (mrtt_us) %u == 0", msg, val.mrtt_us);
+		err++;
+	}
+
+	if (val.srtt == 0) {
+		log_err("%s: unexpected bpf_tcp_sock.args[1] (srtt) %u == 0", msg, val.srtt);
+		err++;
+	}
+
+	return err;
+}
+
+
+static int run_test(int cgroup_fd, int server_fd)
+{
+	struct tcp_rtt *skel;
+	int client_fd;
+	int prog_fd;
+	int map_fd;
+	int err;
+
+	skel = tcp_rtt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_load"))
+		return -1;
+
+	map_fd = bpf_map__fd(skel->maps.socket_storage_map);
+	prog_fd = bpf_program__fd(skel->progs._sockops);
+
+	err = bpf_prog_attach(prog_fd, cgroup_fd, BPF_CGROUP_SOCK_OPS, 0);
+	if (err) {
+		log_err("Failed to attach BPF program");
+		goto close_bpf_object;
+	}
+
+	client_fd = connect_to_fd(server_fd, 0);
+	if (client_fd < 0) {
+		err = -1;
+		goto close_bpf_object;
+	}
+
+	err += verify_sk(map_fd, client_fd, "syn-ack",
+			 /*invoked=*/1,
+			 /*dsack_dups=*/0,
+			 /*delivered=*/1,
+			 /*delivered_ce=*/0,
+			 /*icsk_retransmits=*/0);
+
+	send_byte(client_fd);
+	if (wait_for_ack(client_fd, 100) < 0) {
+		err = -1;
+		goto close_client_fd;
+	}
+
+
+	err += verify_sk(map_fd, client_fd, "first payload byte",
+			 /*invoked=*/2,
+			 /*dsack_dups=*/0,
+			 /*delivered=*/2,
+			 /*delivered_ce=*/0,
+			 /*icsk_retransmits=*/0);
+
+close_client_fd:
+	close(client_fd);
+
+close_bpf_object:
+	tcp_rtt__destroy(skel);
+	return err;
+}
+
+void test_tcp_rtt(void)
+{
+	int server_fd, cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/tcp_rtt");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /tcp_rtt"))
+		return;
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto close_cgroup_fd;
+
+	ASSERT_OK(run_test(cgroup_fd, server_fd), "run_test");
+
+	close(server_fd);
+
+close_cgroup_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tcpbpf_user.c b/tools/testing/selftests/bpf/prog_tests/tcpbpf_user.c
new file mode 100644
index 000000000000..7e8fe1bad03f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tcpbpf_user.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "test_tcpbpf.h"
+#include "test_tcpbpf_kern.skel.h"
+
+#define LO_ADDR6 "::1"
+#define CG_NAME "/tcpbpf-user-test"
+
+static void verify_result(struct tcpbpf_globals *result)
+{
+	__u32 expected_events = ((1 << BPF_SOCK_OPS_TIMEOUT_INIT) |
+				 (1 << BPF_SOCK_OPS_RWND_INIT) |
+				 (1 << BPF_SOCK_OPS_TCP_CONNECT_CB) |
+				 (1 << BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB) |
+				 (1 << BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB) |
+				 (1 << BPF_SOCK_OPS_NEEDS_ECN) |
+				 (1 << BPF_SOCK_OPS_STATE_CB) |
+				 (1 << BPF_SOCK_OPS_TCP_LISTEN_CB));
+
+	/* check global map */
+	ASSERT_EQ(expected_events, result->event_map, "event_map");
+
+	ASSERT_EQ(result->bytes_received, 501, "bytes_received");
+	ASSERT_EQ(result->bytes_acked, 1002, "bytes_acked");
+	ASSERT_EQ(result->data_segs_in, 1, "data_segs_in");
+	ASSERT_EQ(result->data_segs_out, 1, "data_segs_out");
+	ASSERT_EQ(result->bad_cb_test_rv, 0x80, "bad_cb_test_rv");
+	ASSERT_EQ(result->good_cb_test_rv, 0, "good_cb_test_rv");
+	ASSERT_EQ(result->num_listen, 1, "num_listen");
+
+	/* 3 comes from one listening socket + both ends of the connection */
+	ASSERT_EQ(result->num_close_events, 3, "num_close_events");
+
+	/* check setsockopt for SAVE_SYN */
+	ASSERT_EQ(result->tcp_save_syn, 0, "tcp_save_syn");
+
+	/* check getsockopt for SAVED_SYN */
+	ASSERT_EQ(result->tcp_saved_syn, 1, "tcp_saved_syn");
+
+	/* check getsockopt for window_clamp */
+	ASSERT_EQ(result->window_clamp_client, 9216, "window_clamp_client");
+	ASSERT_EQ(result->window_clamp_server, 9216, "window_clamp_server");
+}
+
+static void run_test(struct tcpbpf_globals *result)
+{
+	int listen_fd = -1, cli_fd = -1, accept_fd = -1;
+	char buf[1000];
+	int err = -1;
+	int i, rv;
+
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, LO_ADDR6, 0, 0);
+	if (!ASSERT_NEQ(listen_fd, -1, "start_server"))
+		goto done;
+
+	cli_fd = connect_to_fd(listen_fd, 0);
+	if (!ASSERT_NEQ(cli_fd, -1, "connect_to_fd(listen_fd)"))
+		goto done;
+
+	accept_fd = accept(listen_fd, NULL, NULL);
+	if (!ASSERT_NEQ(accept_fd, -1, "accept(listen_fd)"))
+		goto done;
+
+	/* Send 1000B of '+'s from cli_fd -> accept_fd */
+	for (i = 0; i < 1000; i++)
+		buf[i] = '+';
+
+	rv = send(cli_fd, buf, 1000, 0);
+	if (!ASSERT_EQ(rv, 1000, "send(cli_fd)"))
+		goto done;
+
+	rv = recv(accept_fd, buf, 1000, 0);
+	if (!ASSERT_EQ(rv, 1000, "recv(accept_fd)"))
+		goto done;
+
+	/* Send 500B of '.'s from accept_fd ->cli_fd */
+	for (i = 0; i < 500; i++)
+		buf[i] = '.';
+
+	rv = send(accept_fd, buf, 500, 0);
+	if (!ASSERT_EQ(rv, 500, "send(accept_fd)"))
+		goto done;
+
+	rv = recv(cli_fd, buf, 500, 0);
+	if (!ASSERT_EQ(rv, 500, "recv(cli_fd)"))
+		goto done;
+
+	/*
+	 * shutdown accept first to guarantee correct ordering for
+	 * bytes_received and bytes_acked when we go to verify the results.
+	 */
+	shutdown(accept_fd, SHUT_WR);
+	err = recv(cli_fd, buf, 1, 0);
+	if (!ASSERT_OK(err, "recv(cli_fd) for fin"))
+		goto done;
+
+	shutdown(cli_fd, SHUT_WR);
+	err = recv(accept_fd, buf, 1, 0);
+	ASSERT_OK(err, "recv(accept_fd) for fin");
+done:
+	if (accept_fd != -1)
+		close(accept_fd);
+	if (cli_fd != -1)
+		close(cli_fd);
+	if (listen_fd != -1)
+		close(listen_fd);
+
+	if (!err)
+		verify_result(result);
+}
+
+void test_tcpbpf_user(void)
+{
+	struct test_tcpbpf_kern *skel;
+	int cg_fd = -1;
+
+	skel = test_tcpbpf_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skel"))
+		return;
+
+	cg_fd = test__join_cgroup(CG_NAME);
+	if (!ASSERT_GE(cg_fd, 0, "test__join_cgroup(" CG_NAME ")"))
+		goto err;
+
+	skel->links.bpf_testcb = bpf_program__attach_cgroup(skel->progs.bpf_testcb, cg_fd);
+	if (!ASSERT_OK_PTR(skel->links.bpf_testcb, "attach_cgroup(bpf_testcb)"))
+		goto err;
+
+	run_test(&skel->bss->global);
+
+err:
+	if (cg_fd != -1)
+		close(cg_fd);
+	test_tcpbpf_kern__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_bpf_ma.c b/tools/testing/selftests/bpf/prog_tests/test_bpf_ma.c
new file mode 100644
index 000000000000..ccae0b31ac6c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_bpf_ma.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <bpf/btf.h>
+#include <test_progs.h>
+
+#include "test_bpf_ma.skel.h"
+
+static void do_bpf_ma_test(const char *name)
+{
+	struct test_bpf_ma *skel;
+	struct bpf_program *prog;
+	struct btf *btf;
+	int i, err, id;
+	char tname[32];
+
+	skel = test_bpf_ma__open();
+	if (!ASSERT_OK_PTR(skel, "open"))
+		return;
+
+	btf = bpf_object__btf(skel->obj);
+	if (!ASSERT_OK_PTR(btf, "btf"))
+		goto out;
+
+	for (i = 0; i < ARRAY_SIZE(skel->rodata->data_sizes); i++) {
+		snprintf(tname, sizeof(tname), "bin_data_%u", skel->rodata->data_sizes[i]);
+		id = btf__find_by_name_kind(btf, tname, BTF_KIND_STRUCT);
+		if (!ASSERT_GT(id, 0, tname))
+			goto out;
+		skel->rodata->data_btf_ids[i] = id;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(skel->rodata->percpu_data_sizes); i++) {
+		snprintf(tname, sizeof(tname), "percpu_bin_data_%u", skel->rodata->percpu_data_sizes[i]);
+		id = btf__find_by_name_kind(btf, tname, BTF_KIND_STRUCT);
+		if (!ASSERT_GT(id, 0, tname))
+			goto out;
+		skel->rodata->percpu_data_btf_ids[i] = id;
+	}
+
+	prog = bpf_object__find_program_by_name(skel->obj, name);
+	if (!ASSERT_OK_PTR(prog, "invalid prog name"))
+		goto out;
+	bpf_program__set_autoload(prog, true);
+
+	err = test_bpf_ma__load(skel);
+	if (!ASSERT_OK(err, "load"))
+		goto out;
+
+	err = test_bpf_ma__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto out;
+
+	skel->bss->pid = getpid();
+	usleep(1);
+	ASSERT_OK(skel->bss->err, "test error");
+out:
+	test_bpf_ma__destroy(skel);
+}
+
+void test_test_bpf_ma(void)
+{
+	if (test__start_subtest("batch_alloc_free"))
+		do_bpf_ma_test("test_batch_alloc_free");
+	if (test__start_subtest("free_through_map_free"))
+		do_bpf_ma_test("test_free_through_map_free");
+	if (test__start_subtest("batch_percpu_alloc_free"))
+		do_bpf_ma_test("test_batch_percpu_alloc_free");
+	if (test__start_subtest("percpu_free_through_map_free"))
+		do_bpf_ma_test("test_percpu_free_through_map_free");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c b/tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c
new file mode 100644
index 000000000000..de22734abc4d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_bpf_smc.c
@@ -0,0 +1,390 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <linux/genetlink.h>
+#include "network_helpers.h"
+#include "bpf_smc.skel.h"
+
+#ifndef IPPROTO_SMC
+#define IPPROTO_SMC 256
+#endif
+
+#define CLIENT_IP			"127.0.0.1"
+#define SERVER_IP			"127.0.1.0"
+#define SERVER_IP_VIA_RISK_PATH	"127.0.2.0"
+
+#define SERVICE_1	80
+#define SERVICE_2	443
+#define SERVICE_3	8443
+
+#define TEST_NS	"bpf_smc_netns"
+
+static struct netns_obj *test_netns;
+
+struct smc_policy_ip_key {
+	__u32  sip;
+	__u32  dip;
+};
+
+struct smc_policy_ip_value {
+	__u8	mode;
+};
+
+#if defined(__s390x__)
+/* s390x has default seid  */
+static bool setup_ueid(void) { return true; }
+static void cleanup_ueid(void) {}
+#else
+enum {
+	SMC_NETLINK_ADD_UEID = 10,
+	SMC_NETLINK_REMOVE_UEID
+};
+
+enum {
+	SMC_NLA_EID_TABLE_UNSPEC,
+	SMC_NLA_EID_TABLE_ENTRY,    /* string */
+};
+
+struct msgtemplate {
+	struct nlmsghdr n;
+	struct genlmsghdr g;
+	char buf[1024];
+};
+
+#define GENLMSG_DATA(glh)	((void *)(NLMSG_DATA(glh) + GENL_HDRLEN))
+#define GENLMSG_PAYLOAD(glh)	(NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN)
+#define NLA_DATA(na)		((void *)((char *)(na) + NLA_HDRLEN))
+#define NLA_PAYLOAD(len)	((len) - NLA_HDRLEN)
+
+#define SMC_GENL_FAMILY_NAME	"SMC_GEN_NETLINK"
+#define SMC_BPFTEST_UEID	"SMC-BPFTEST-UEID"
+
+static uint16_t smc_nl_family_id = -1;
+
+static int send_cmd(int fd, __u16 nlmsg_type, __u32 nlmsg_pid,
+		    __u16 nlmsg_flags, __u8 genl_cmd, __u16 nla_type,
+		    void *nla_data, int nla_len)
+{
+	struct nlattr *na;
+	struct sockaddr_nl nladdr;
+	int r, buflen;
+	char *buf;
+
+	struct msgtemplate msg = {0};
+
+	msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
+	msg.n.nlmsg_type = nlmsg_type;
+	msg.n.nlmsg_flags = nlmsg_flags;
+	msg.n.nlmsg_seq = 0;
+	msg.n.nlmsg_pid = nlmsg_pid;
+	msg.g.cmd = genl_cmd;
+	msg.g.version = 1;
+	na = (struct nlattr *)GENLMSG_DATA(&msg);
+	na->nla_type = nla_type;
+	na->nla_len = nla_len + 1 + NLA_HDRLEN;
+	memcpy(NLA_DATA(na), nla_data, nla_len);
+	msg.n.nlmsg_len += NLMSG_ALIGN(na->nla_len);
+
+	buf = (char *)&msg;
+	buflen = msg.n.nlmsg_len;
+	memset(&nladdr, 0, sizeof(nladdr));
+	nladdr.nl_family = AF_NETLINK;
+
+	while ((r = sendto(fd, buf, buflen, 0, (struct sockaddr *)&nladdr,
+			   sizeof(nladdr))) < buflen) {
+		if (r > 0) {
+			buf += r;
+			buflen -= r;
+		} else if (errno != EAGAIN) {
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static bool get_smc_nl_family_id(void)
+{
+	struct sockaddr_nl nl_src;
+	struct msgtemplate msg;
+	struct nlattr *nl;
+	int fd, ret;
+	pid_t pid;
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	if (!ASSERT_OK_FD(fd, "nl_family socket"))
+		return false;
+
+	pid = getpid();
+
+	memset(&nl_src, 0, sizeof(nl_src));
+	nl_src.nl_family = AF_NETLINK;
+	nl_src.nl_pid = pid;
+
+	ret = bind(fd, (struct sockaddr *)&nl_src, sizeof(nl_src));
+	if (!ASSERT_OK(ret, "nl_family bind"))
+		goto fail;
+
+	ret = send_cmd(fd, GENL_ID_CTRL, pid,
+		       NLM_F_REQUEST, CTRL_CMD_GETFAMILY,
+		       CTRL_ATTR_FAMILY_NAME, (void *)SMC_GENL_FAMILY_NAME,
+		       strlen(SMC_GENL_FAMILY_NAME));
+	if (!ASSERT_OK(ret, "nl_family query"))
+		goto fail;
+
+	ret = recv(fd, &msg, sizeof(msg), 0);
+	if (!ASSERT_FALSE(msg.n.nlmsg_type == NLMSG_ERROR || ret < 0 ||
+			  !NLMSG_OK(&msg.n, ret), "nl_family response"))
+		goto fail;
+
+	nl = (struct nlattr *)GENLMSG_DATA(&msg);
+	nl = (struct nlattr *)((char *)nl + NLA_ALIGN(nl->nla_len));
+	if (!ASSERT_EQ(nl->nla_type, CTRL_ATTR_FAMILY_ID, "nl_family nla type"))
+		goto fail;
+
+	smc_nl_family_id = *(uint16_t *)NLA_DATA(nl);
+	close(fd);
+	return true;
+fail:
+	close(fd);
+	return false;
+}
+
+static bool smc_ueid(int op)
+{
+	struct sockaddr_nl nl_src;
+	struct msgtemplate msg;
+	struct nlmsgerr *err;
+	char test_ueid[32];
+	int fd, ret;
+	pid_t pid;
+
+	/* UEID required */
+	memset(test_ueid, '\x20', sizeof(test_ueid));
+	memcpy(test_ueid, SMC_BPFTEST_UEID, strlen(SMC_BPFTEST_UEID));
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	if (!ASSERT_OK_FD(fd, "ueid socket"))
+		return false;
+
+	pid = getpid();
+	memset(&nl_src, 0, sizeof(nl_src));
+	nl_src.nl_family = AF_NETLINK;
+	nl_src.nl_pid = pid;
+
+	ret = bind(fd, (struct sockaddr *)&nl_src, sizeof(nl_src));
+	if (!ASSERT_OK(ret, "ueid bind"))
+		goto fail;
+
+	ret = send_cmd(fd, smc_nl_family_id, pid,
+		       NLM_F_REQUEST | NLM_F_ACK, op, SMC_NLA_EID_TABLE_ENTRY,
+		       (void *)test_ueid, sizeof(test_ueid));
+	if (!ASSERT_OK(ret, "ueid cmd"))
+		goto fail;
+
+	ret = recv(fd, &msg, sizeof(msg), 0);
+	if (!ASSERT_FALSE(ret < 0 ||
+			  !NLMSG_OK(&msg.n, ret), "ueid response"))
+		goto fail;
+
+	if (msg.n.nlmsg_type == NLMSG_ERROR) {
+		err = NLMSG_DATA(&msg);
+		switch (op) {
+		case SMC_NETLINK_REMOVE_UEID:
+			if (!ASSERT_FALSE((err->error && err->error != -ENOENT),
+					  "ueid remove"))
+				goto fail;
+			break;
+		case SMC_NETLINK_ADD_UEID:
+			if (!ASSERT_OK(err->error, "ueid add"))
+				goto fail;
+			break;
+		default:
+			break;
+		}
+	}
+	close(fd);
+	return true;
+fail:
+	close(fd);
+	return false;
+}
+
+static bool setup_ueid(void)
+{
+	/* get smc nl id */
+	if (!get_smc_nl_family_id())
+		return false;
+	/* clear old ueid for bpftest */
+	smc_ueid(SMC_NETLINK_REMOVE_UEID);
+	/* smc-loopback required ueid */
+	return smc_ueid(SMC_NETLINK_ADD_UEID);
+}
+
+static void cleanup_ueid(void)
+{
+	smc_ueid(SMC_NETLINK_REMOVE_UEID);
+}
+#endif /* __s390x__ */
+
+static bool setup_netns(void)
+{
+	test_netns = netns_new(TEST_NS, true);
+	if (!ASSERT_OK_PTR(test_netns, "open net namespace"))
+		goto fail_netns;
+
+	SYS(fail_ip, "ip addr add 127.0.1.0/8 dev lo");
+	SYS(fail_ip, "ip addr add 127.0.2.0/8 dev lo");
+
+	return true;
+fail_ip:
+	netns_free(test_netns);
+fail_netns:
+	return false;
+}
+
+static void cleanup_netns(void)
+{
+	netns_free(test_netns);
+}
+
+static bool setup_smc(void)
+{
+	if (!setup_ueid())
+		return false;
+
+	if (!setup_netns())
+		goto fail_netns;
+
+	return true;
+fail_netns:
+	cleanup_ueid();
+	return false;
+}
+
+static int set_client_addr_cb(int fd, void *opts)
+{
+	const char *src = (const char *)opts;
+	struct sockaddr_in localaddr;
+
+	localaddr.sin_family = AF_INET;
+	localaddr.sin_port = htons(0);
+	localaddr.sin_addr.s_addr = inet_addr(src);
+	return !ASSERT_OK(bind(fd, &localaddr, sizeof(localaddr)), "client bind");
+}
+
+static void run_link(const char *src, const char *dst, int port)
+{
+	struct network_helper_opts opts = {0};
+	int server, client;
+
+	server = start_server_str(AF_INET, SOCK_STREAM, dst, port, NULL);
+	if (!ASSERT_OK_FD(server, "start service_1"))
+		return;
+
+	opts.proto = IPPROTO_TCP;
+	opts.post_socket_cb = set_client_addr_cb;
+	opts.cb_opts = (void *)src;
+
+	client = connect_to_fd_opts(server, &opts);
+	if (!ASSERT_OK_FD(client, "start connect"))
+		goto fail_client;
+
+	close(client);
+fail_client:
+	close(server);
+}
+
+static void block_link(int map_fd, const char *src, const char *dst)
+{
+	struct smc_policy_ip_value val = { .mode = /* block */ 0 };
+	struct smc_policy_ip_key key = {
+		.sip = inet_addr(src),
+		.dip = inet_addr(dst),
+	};
+
+	bpf_map_update_elem(map_fd, &key, &val, BPF_ANY);
+}
+
+/*
+ * This test describes a real-life service topology as follows:
+ *
+ *                             +-------------> service_1
+ *            link 1           |                     |
+ *   +--------------------> server                   |  link 2
+ *   |                         |                     V
+ *   |                         +-------------> service_2
+ *   |        link 3
+ *  client -------------------> server_via_unsafe_path -> service_3
+ *
+ * Among them,
+ * 1. link-1 is very suitable for using SMC.
+ * 2. link-2 is not suitable for using SMC, because the mode of this link is
+ *    kind of short-link services.
+ * 3. link-3 is also not suitable for using SMC, because the RDMA link is
+ *    unavailable and needs to go through a long timeout before it can fallback
+ *    to TCP.
+ * To achieve this goal, we use a customized SMC ip strategy via smc_hs_ctrl.
+ */
+static void test_topo(void)
+{
+	struct bpf_smc *skel;
+	int rc, map_fd;
+
+	skel = bpf_smc__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_smc__open_and_load"))
+		return;
+
+	rc = bpf_smc__attach(skel);
+	if (!ASSERT_OK(rc, "bpf_smc__attach"))
+		goto fail;
+
+	map_fd = bpf_map__fd(skel->maps.smc_policy_ip);
+	if (!ASSERT_OK_FD(map_fd, "bpf_map__fd"))
+		goto fail;
+
+	/* Mock the process of transparent replacement, since we will modify
+	 * protocol to ipproto_smc accropding to it via
+	 * fmod_ret/update_socket_protocol.
+	 */
+	write_sysctl("/proc/sys/net/smc/hs_ctrl", "linkcheck");
+
+	/* Configure ip strat */
+	block_link(map_fd, CLIENT_IP, SERVER_IP_VIA_RISK_PATH);
+	block_link(map_fd, SERVER_IP, SERVER_IP);
+
+	/* should go with smc */
+	run_link(CLIENT_IP, SERVER_IP, SERVICE_1);
+	/* should go with smc fallback */
+	run_link(SERVER_IP, SERVER_IP, SERVICE_2);
+
+	ASSERT_EQ(skel->bss->smc_cnt, 2, "smc count");
+	ASSERT_EQ(skel->bss->fallback_cnt, 1, "fallback count");
+
+	/* should go with smc */
+	run_link(CLIENT_IP, SERVER_IP, SERVICE_2);
+
+	ASSERT_EQ(skel->bss->smc_cnt, 3, "smc count");
+	ASSERT_EQ(skel->bss->fallback_cnt, 1, "fallback count");
+
+	/* should go with smc fallback */
+	run_link(CLIENT_IP, SERVER_IP_VIA_RISK_PATH, SERVICE_3);
+
+	ASSERT_EQ(skel->bss->smc_cnt, 4, "smc count");
+	ASSERT_EQ(skel->bss->fallback_cnt, 2, "fallback count");
+
+fail:
+	bpf_smc__destroy(skel);
+}
+
+void test_bpf_smc(void)
+{
+	if (!setup_smc()) {
+		printf("setup for smc test failed, test SKIP:\n");
+		test__skip();
+		return;
+	}
+
+	if (test__start_subtest("topo"))
+		test_topo();
+
+	cleanup_ueid();
+	cleanup_netns();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_bpf_syscall_macro.c b/tools/testing/selftests/bpf/prog_tests/test_bpf_syscall_macro.c
new file mode 100644
index 000000000000..1750c29b94f8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_bpf_syscall_macro.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2022 Sony Group Corporation */
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <sys/prctl.h>
+#include <test_progs.h>
+#include "bpf_syscall_macro.skel.h"
+
+void test_bpf_syscall_macro(void)
+{
+	struct bpf_syscall_macro *skel = NULL;
+	int err;
+	int exp_arg1 = 1001;
+	unsigned long exp_arg2 = 12;
+	unsigned long exp_arg3 = 13;
+	unsigned long exp_arg4 = 14;
+	unsigned long exp_arg5 = 15;
+	loff_t off_in, off_out;
+	ssize_t r;
+
+	/* check whether it can open program */
+	skel = bpf_syscall_macro__open();
+	if (!ASSERT_OK_PTR(skel, "bpf_syscall_macro__open"))
+		return;
+
+	skel->rodata->filter_pid = getpid();
+
+	/* check whether it can load program */
+	err = bpf_syscall_macro__load(skel);
+	if (!ASSERT_OK(err, "bpf_syscall_macro__load"))
+		goto cleanup;
+
+	/* check whether it can attach kprobe */
+	err = bpf_syscall_macro__attach(skel);
+	if (!ASSERT_OK(err, "bpf_syscall_macro__attach"))
+		goto cleanup;
+
+	/* check whether args of syscall are copied correctly */
+	prctl(exp_arg1, exp_arg2, exp_arg3, exp_arg4, exp_arg5);
+
+	ASSERT_EQ(skel->bss->arg1, exp_arg1, "syscall_arg1");
+	ASSERT_EQ(skel->bss->arg2, exp_arg2, "syscall_arg2");
+	ASSERT_EQ(skel->bss->arg3, exp_arg3, "syscall_arg3");
+	/* it cannot copy arg4 when uses PT_REGS_PARM4 on x86_64 */
+#ifdef __x86_64__
+	ASSERT_NEQ(skel->bss->arg4_cx, exp_arg4, "syscall_arg4_from_cx");
+#else
+	ASSERT_EQ(skel->bss->arg4_cx, exp_arg4, "syscall_arg4_from_cx");
+#endif
+	ASSERT_EQ(skel->bss->arg4, exp_arg4, "syscall_arg4");
+	ASSERT_EQ(skel->bss->arg5, exp_arg5, "syscall_arg5");
+
+	/* check whether args of syscall are copied correctly for CORE variants */
+	ASSERT_EQ(skel->bss->arg1_core, exp_arg1, "syscall_arg1_core_variant");
+	ASSERT_EQ(skel->bss->arg2_core, exp_arg2, "syscall_arg2_core_variant");
+	ASSERT_EQ(skel->bss->arg3_core, exp_arg3, "syscall_arg3_core_variant");
+	/* it cannot copy arg4 when uses PT_REGS_PARM4_CORE on x86_64 */
+#ifdef __x86_64__
+	ASSERT_NEQ(skel->bss->arg4_core_cx, exp_arg4, "syscall_arg4_from_cx_core_variant");
+#else
+	ASSERT_EQ(skel->bss->arg4_core_cx, exp_arg4, "syscall_arg4_from_cx_core_variant");
+#endif
+	ASSERT_EQ(skel->bss->arg4_core, exp_arg4, "syscall_arg4_core_variant");
+	ASSERT_EQ(skel->bss->arg5_core, exp_arg5, "syscall_arg5_core_variant");
+
+	ASSERT_EQ(skel->bss->option_syscall, exp_arg1, "BPF_KPROBE_SYSCALL_option");
+	ASSERT_EQ(skel->bss->arg2_syscall, exp_arg2, "BPF_KPROBE_SYSCALL_arg2");
+	ASSERT_EQ(skel->bss->arg3_syscall, exp_arg3, "BPF_KPROBE_SYSCALL_arg3");
+	ASSERT_EQ(skel->bss->arg4_syscall, exp_arg4, "BPF_KPROBE_SYSCALL_arg4");
+	ASSERT_EQ(skel->bss->arg5_syscall, exp_arg5, "BPF_KPROBE_SYSCALL_arg5");
+
+	r = splice(-42, &off_in, 42, &off_out, 0x12340000, SPLICE_F_NONBLOCK);
+	err = -errno;
+	ASSERT_EQ(r, -1, "splice_res");
+	ASSERT_EQ(err, -EBADF, "splice_err");
+
+	ASSERT_EQ(skel->bss->splice_fd_in, -42, "splice_arg1");
+	ASSERT_EQ(skel->bss->splice_off_in, (__u64)&off_in, "splice_arg2");
+	ASSERT_EQ(skel->bss->splice_fd_out, 42, "splice_arg3");
+	ASSERT_EQ(skel->bss->splice_off_out, (__u64)&off_out, "splice_arg4");
+	ASSERT_EQ(skel->bss->splice_len, 0x12340000, "splice_arg5");
+	ASSERT_EQ(skel->bss->splice_flags, SPLICE_F_NONBLOCK, "splice_arg6");
+
+cleanup:
+	bpf_syscall_macro__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_bpffs.c b/tools/testing/selftests/bpf/prog_tests/test_bpffs.c
new file mode 100644
index 000000000000..ea933fd151c3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_bpffs.c
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <sched.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <test_progs.h>
+
+/* TDIR must be in a location we can create a directory in. */
+#define TDIR "/tmp/test_bpffs_testdir"
+
+static int read_iter(char *file)
+{
+	/* 1024 should be enough to get contiguous 4 "iter" letters at some point */
+	char buf[1024];
+	int fd, len;
+
+	fd = open(file, 0);
+	if (fd < 0)
+		return -1;
+	while ((len = read(fd, buf, sizeof(buf))) > 0) {
+		buf[sizeof(buf) - 1] = '\0';
+		if (strstr(buf, "iter")) {
+			close(fd);
+			return 0;
+		}
+	}
+	close(fd);
+	return -1;
+}
+
+static int fn(void)
+{
+	struct stat a, b, c;
+	int err, map;
+
+	err = unshare(CLONE_NEWNS);
+	if (!ASSERT_OK(err, "unshare"))
+		goto out;
+
+	err = mount("", "/", "", MS_REC | MS_PRIVATE, NULL);
+	if (!ASSERT_OK(err, "mount /"))
+		goto out;
+
+	err =  mkdir(TDIR, 0777);
+	/* If the directory already exists we can carry on. It may be left over
+	 * from a previous run.
+	 */
+	if ((err && errno != EEXIST) && !ASSERT_OK(err, "mkdir " TDIR))
+		goto out;
+
+	err = mount("none", TDIR, "tmpfs", 0, NULL);
+	if (!ASSERT_OK(err, "mount tmpfs"))
+		goto out;
+
+	err = mkdir(TDIR "/fs1", 0777);
+	if (!ASSERT_OK(err, "mkdir " TDIR "/fs1"))
+		goto out;
+	err = mkdir(TDIR "/fs2", 0777);
+	if (!ASSERT_OK(err, "mkdir " TDIR "/fs2"))
+		goto out;
+
+	err = mount("bpf", TDIR "/fs1", "bpf", 0, NULL);
+	if (!ASSERT_OK(err, "mount bpffs " TDIR "/fs1"))
+		goto out;
+	err = mount("bpf", TDIR "/fs2", "bpf", 0, NULL);
+	if (!ASSERT_OK(err, "mount bpffs " TDIR "/fs2"))
+		goto out;
+
+	err = read_iter(TDIR "/fs1/maps.debug");
+	if (!ASSERT_OK(err, "reading " TDIR "/fs1/maps.debug"))
+		goto out;
+	err = read_iter(TDIR "/fs2/progs.debug");
+	if (!ASSERT_OK(err, "reading " TDIR "/fs2/progs.debug"))
+		goto out;
+
+	err = mkdir(TDIR "/fs1/a", 0777);
+	if (!ASSERT_OK(err, "creating " TDIR "/fs1/a"))
+		goto out;
+	err = mkdir(TDIR "/fs1/a/1", 0777);
+	if (!ASSERT_OK(err, "creating " TDIR "/fs1/a/1"))
+		goto out;
+	err = mkdir(TDIR "/fs1/b", 0777);
+	if (!ASSERT_OK(err, "creating " TDIR "/fs1/b"))
+		goto out;
+
+	map = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, 4, 4, 1, NULL);
+	if (!ASSERT_GT(map, 0, "create_map(ARRAY)"))
+		goto out;
+	err = bpf_obj_pin(map, TDIR "/fs1/c");
+	if (!ASSERT_OK(err, "pin map"))
+		goto out;
+	close(map);
+
+	/* Check that RENAME_EXCHANGE works for directories. */
+	err = stat(TDIR "/fs1/a", &a);
+	if (!ASSERT_OK(err, "stat(" TDIR "/fs1/a)"))
+		goto out;
+	err = renameat2(0, TDIR "/fs1/a", 0, TDIR "/fs1/b", RENAME_EXCHANGE);
+	if (!ASSERT_OK(err, "renameat2(/fs1/a, /fs1/b, RENAME_EXCHANGE)"))
+		goto out;
+	err = stat(TDIR "/fs1/b", &b);
+	if (!ASSERT_OK(err, "stat(" TDIR "/fs1/b)"))
+		goto out;
+	if (!ASSERT_EQ(a.st_ino, b.st_ino, "b should have a's inode"))
+		goto out;
+	err = access(TDIR "/fs1/b/1", F_OK);
+	if (!ASSERT_OK(err, "access(" TDIR "/fs1/b/1)"))
+		goto out;
+
+	/* Check that RENAME_EXCHANGE works for mixed file types. */
+	err = stat(TDIR "/fs1/c", &c);
+	if (!ASSERT_OK(err, "stat(" TDIR "/fs1/map)"))
+		goto out;
+	err = renameat2(0, TDIR "/fs1/c", 0, TDIR "/fs1/b", RENAME_EXCHANGE);
+	if (!ASSERT_OK(err, "renameat2(/fs1/c, /fs1/b, RENAME_EXCHANGE)"))
+		goto out;
+	err = stat(TDIR "/fs1/b", &b);
+	if (!ASSERT_OK(err, "stat(" TDIR "/fs1/b)"))
+		goto out;
+	if (!ASSERT_EQ(c.st_ino, b.st_ino, "b should have c's inode"))
+		goto out;
+	err = access(TDIR "/fs1/c/1", F_OK);
+	if (!ASSERT_OK(err, "access(" TDIR "/fs1/c/1)"))
+		goto out;
+
+	/* Check that RENAME_NOREPLACE works. */
+	err = renameat2(0, TDIR "/fs1/b", 0, TDIR "/fs1/a", RENAME_NOREPLACE);
+	if (!ASSERT_ERR(err, "renameat2(RENAME_NOREPLACE)")) {
+		err = -EINVAL;
+		goto out;
+	}
+	err = access(TDIR "/fs1/b", F_OK);
+	if (!ASSERT_OK(err, "access(" TDIR "/fs1/b)"))
+		goto out;
+
+out:
+	umount(TDIR "/fs1");
+	umount(TDIR "/fs2");
+	rmdir(TDIR "/fs1");
+	rmdir(TDIR "/fs2");
+	umount(TDIR);
+	rmdir(TDIR);
+	exit(err);
+}
+
+void test_test_bpffs(void)
+{
+	int err, duration = 0, status = 0;
+	pid_t pid;
+
+	pid = fork();
+	if (CHECK(pid == -1, "clone", "clone failed %d", errno))
+		return;
+	if (pid == 0)
+		fn();
+	err = waitpid(pid, &status, 0);
+	if (CHECK(err == -1 && errno != ECHILD, "waitpid", "failed %d", errno))
+		return;
+	if (CHECK(WEXITSTATUS(status), "bpffs test ", "failed %d", WEXITSTATUS(status)))
+		return;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_bprm_opts.c b/tools/testing/selftests/bpf/prog_tests/test_bprm_opts.c
new file mode 100644
index 000000000000..9c0200c132d9
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_bprm_opts.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <linux/limits.h>
+
+#include "bprm_opts.skel.h"
+#include "network_helpers.h"
+#include "task_local_storage_helpers.h"
+
+static const char * const bash_envp[] = { "TMPDIR=shouldnotbeset", NULL };
+
+static int update_storage(int map_fd, int secureexec)
+{
+	int task_fd, ret = 0;
+
+	task_fd = sys_pidfd_open(getpid(), 0);
+	if (task_fd < 0)
+		return errno;
+
+	ret = bpf_map_update_elem(map_fd, &task_fd, &secureexec, BPF_NOEXIST);
+	if (ret)
+		ret = errno;
+
+	close(task_fd);
+	return ret;
+}
+
+static int run_set_secureexec(int map_fd, int secureexec)
+{
+	int child_pid, child_status, ret, null_fd;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		null_fd = open("/dev/null", O_WRONLY);
+		if (null_fd == -1)
+			exit(errno);
+		dup2(null_fd, STDOUT_FILENO);
+		dup2(null_fd, STDERR_FILENO);
+		close(null_fd);
+
+		/* Ensure that all executions from hereon are
+		 * secure by setting a local storage which is read by
+		 * the bprm_creds_for_exec hook and sets bprm->secureexec.
+		 */
+		ret = update_storage(map_fd, secureexec);
+		if (ret)
+			exit(ret);
+
+		/* If the binary is executed with securexec=1, the dynamic
+		 * loader ignores and unsets certain variables like LD_PRELOAD,
+		 * TMPDIR etc. TMPDIR is used here to simplify the example, as
+		 * LD_PRELOAD requires a real .so file.
+		 *
+		 * If the value of TMPDIR is set, the bash command returns 10
+		 * and if the value is unset, it returns 20.
+		 */
+		execle("/bin/bash", "bash", "-c",
+		       "[[ -z \"${TMPDIR}\" ]] || exit 10 && exit 20", NULL,
+		       bash_envp);
+		exit(errno);
+	} else if (child_pid > 0) {
+		waitpid(child_pid, &child_status, 0);
+		ret = WEXITSTATUS(child_status);
+
+		/* If a secureexec occurred, the exit status should be 20 */
+		if (secureexec && ret == 20)
+			return 0;
+
+		/* If normal execution happened, the exit code should be 10 */
+		if (!secureexec && ret == 10)
+			return 0;
+	}
+
+	return -EINVAL;
+}
+
+void test_test_bprm_opts(void)
+{
+	int err, duration = 0;
+	struct bprm_opts *skel = NULL;
+
+	skel = bprm_opts__open_and_load();
+	if (CHECK(!skel, "skel_load", "skeleton failed\n"))
+		goto close_prog;
+
+	err = bprm_opts__attach(skel);
+	if (CHECK(err, "attach", "attach failed: %d\n", err))
+		goto close_prog;
+
+	/* Run the test with the secureexec bit unset */
+	err = run_set_secureexec(bpf_map__fd(skel->maps.secure_exec_task_map),
+				 0 /* secureexec */);
+	if (CHECK(err, "run_set_secureexec:0", "err = %d\n", err))
+		goto close_prog;
+
+	/* Run the test with the secureexec bit set */
+	err = run_set_secureexec(bpf_map__fd(skel->maps.secure_exec_task_map),
+				 1 /* secureexec */);
+	if (CHECK(err, "run_set_secureexec:1", "err = %d\n", err))
+		goto close_prog;
+
+close_prog:
+	bprm_opts__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_btf_ext.c b/tools/testing/selftests/bpf/prog_tests/test_btf_ext.c
new file mode 100644
index 000000000000..7d1b478c99a0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_btf_ext.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms Inc. */
+#include <test_progs.h>
+#include "test_btf_ext.skel.h"
+#include "btf_helpers.h"
+
+static void subtest_line_func_info(void)
+{
+	struct test_btf_ext *skel;
+	struct bpf_prog_info info;
+	struct bpf_line_info line_info[128], *libbpf_line_info;
+	struct bpf_func_info func_info[128], *libbpf_func_info;
+	__u32 info_len = sizeof(info), libbbpf_line_info_cnt, libbbpf_func_info_cnt;
+	int err, fd;
+
+	skel = test_btf_ext__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	fd = bpf_program__fd(skel->progs.global_func);
+
+	memset(&info, 0, sizeof(info));
+	info.line_info = ptr_to_u64(&line_info);
+	info.nr_line_info = sizeof(line_info);
+	info.line_info_rec_size = sizeof(*line_info);
+	err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(err, "prog_line_info"))
+		goto out;
+
+	libbpf_line_info = bpf_program__line_info(skel->progs.global_func);
+	libbbpf_line_info_cnt = bpf_program__line_info_cnt(skel->progs.global_func);
+
+	memset(&info, 0, sizeof(info));
+	info.func_info = ptr_to_u64(&func_info);
+	info.nr_func_info = sizeof(func_info);
+	info.func_info_rec_size = sizeof(*func_info);
+	err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(err, "prog_func_info"))
+		goto out;
+
+	libbpf_func_info = bpf_program__func_info(skel->progs.global_func);
+	libbbpf_func_info_cnt = bpf_program__func_info_cnt(skel->progs.global_func);
+
+	if (!ASSERT_OK_PTR(libbpf_line_info, "bpf_program__line_info"))
+		goto out;
+	if (!ASSERT_EQ(libbbpf_line_info_cnt, info.nr_line_info, "line_info_cnt"))
+		goto out;
+	if (!ASSERT_OK_PTR(libbpf_func_info, "bpf_program__func_info"))
+		goto out;
+	if (!ASSERT_EQ(libbbpf_func_info_cnt, info.nr_func_info, "func_info_cnt"))
+		goto out;
+	ASSERT_MEMEQ(libbpf_line_info, line_info, libbbpf_line_info_cnt * sizeof(*line_info),
+		     "line_info");
+	ASSERT_MEMEQ(libbpf_func_info, func_info, libbbpf_func_info_cnt * sizeof(*func_info),
+		     "func_info");
+out:
+	test_btf_ext__destroy(skel);
+}
+
+void test_btf_ext(void)
+{
+	if (test__start_subtest("line_func_info"))
+		subtest_line_func_info();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c b/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c
new file mode 100644
index 000000000000..107b20d43e83
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_csum_diff.c
@@ -0,0 +1,408 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates */
+#include <test_progs.h>
+#include "csum_diff_test.skel.h"
+
+#define BUFF_SZ 512
+
+struct testcase {
+	unsigned long long to_buff[BUFF_SZ / 8];
+	unsigned int to_buff_len;
+	unsigned long long from_buff[BUFF_SZ / 8];
+	unsigned int from_buff_len;
+	unsigned short seed;
+	unsigned short result;
+};
+
+#define NUM_PUSH_TESTS 4
+
+struct testcase push_tests[NUM_PUSH_TESTS] = {
+	{
+		.to_buff = {
+			0xdeadbeefdeadbeef,
+		},
+		.to_buff_len = 8,
+		.from_buff = {},
+		.from_buff_len = 0,
+		.seed = 0,
+		.result = 0x3b3b
+	},
+	{
+		.to_buff = {
+			0xdeadbeefdeadbeef,
+			0xbeefdeadbeefdead,
+		},
+		.to_buff_len = 16,
+		.from_buff = {},
+		.from_buff_len = 0,
+		.seed = 0x1234,
+		.result = 0x88aa
+	},
+	{
+		.to_buff = {
+			0xdeadbeefdeadbeef,
+			0xbeefdeadbeefdead,
+		},
+		.to_buff_len = 15,
+		.from_buff = {},
+		.from_buff_len = 0,
+		.seed = 0x1234,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+		.result = 0xcaa9
+#else
+		.result = 0x87fd
+#endif
+	},
+	{
+		.to_buff = {
+			0x327b23c66b8b4567,
+			0x66334873643c9869,
+			0x19495cff74b0dc51,
+			0x625558ec2ae8944a,
+			0x46e87ccd238e1f29,
+			0x507ed7ab3d1b58ba,
+			0x41b71efb2eb141f2,
+			0x7545e14679e2a9e3,
+			0x5bd062c2515f007c,
+			0x4db127f812200854,
+			0x1f16e9e80216231b,
+			0x66ef438d1190cde7,
+			0x3352255a140e0f76,
+			0x0ded7263109cf92e,
+			0x1befd79f7fdcc233,
+			0x6b68079a41a7c4c9,
+			0x25e45d324e6afb66,
+			0x431bd7b7519b500d,
+			0x7c83e4583f2dba31,
+			0x62bbd95a257130a3,
+			0x628c895d436c6125,
+			0x721da317333ab105,
+			0x2d1d5ae92443a858,
+			0x75a2a8d46763845e,
+			0x79838cb208edbdab,
+			0x0b03e0c64353d0cd,
+			0x54e49eb4189a769b,
+			0x2ca8861171f32454,
+			0x02901d820836c40e,
+			0x081386413a95f874,
+			0x7c3dbd3d1e7ff521,
+			0x6ceaf087737b8ddc,
+			0x4516dde922221a70,
+			0x614fd4a13006c83e,
+			0x5577f8e1419ac241,
+			0x05072367440badfc,
+			0x77465f013804823e,
+			0x5c482a977724c67e,
+			0x5e884adc2463b9ea,
+			0x2d51779651ead36b,
+			0x153ea438580bd78f,
+			0x70a64e2a3855585c,
+			0x2a487cb06a2342ec,
+			0x725a06fb1d4ed43b,
+			0x57e4ccaf2cd89a32,
+			0x4b588f547a6d8d3c,
+			0x6de91b18542289ec,
+			0x7644a45c38437fdb,
+			0x684a481a32fff902,
+			0x749abb43579478fe,
+			0x1ba026fa3dc240fb,
+			0x75c6c33a79a1deaa,
+			0x70c6a52912e685fb,
+			0x374a3fe6520eedd1,
+			0x23f9c13c4f4ef005,
+			0x275ac794649bb77c,
+			0x1cf10fd839386575,
+			0x235ba861180115be,
+			0x354fe9f947398c89,
+			0x741226bb15b5af5c,
+			0x10233c990d34b6a8,
+			0x615740953f6ab60f,
+			0x77ae35eb7e0c57b1,
+			0x310c50b3579be4f1,
+		},
+		.to_buff_len = 512,
+		.from_buff = {},
+		.from_buff_len = 0,
+		.seed = 0xffff,
+		.result = 0xca45
+	},
+};
+
+#define NUM_PULL_TESTS 4
+
+struct testcase pull_tests[NUM_PULL_TESTS] = {
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef,
+		},
+		.from_buff_len = 8,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0,
+		.result = 0xc4c4
+	},
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef,
+			0xbeefdeadbeefdead,
+		},
+		.from_buff_len = 16,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0x1234,
+		.result = 0x9bbd
+	},
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef,
+			0xbeefdeadbeefdead,
+		},
+		.from_buff_len = 15,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0x1234,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+		.result = 0x59be
+#else
+		.result = 0x9c6a
+#endif
+	},
+	{
+		.from_buff = {
+			0x327b23c66b8b4567,
+			0x66334873643c9869,
+			0x19495cff74b0dc51,
+			0x625558ec2ae8944a,
+			0x46e87ccd238e1f29,
+			0x507ed7ab3d1b58ba,
+			0x41b71efb2eb141f2,
+			0x7545e14679e2a9e3,
+			0x5bd062c2515f007c,
+			0x4db127f812200854,
+			0x1f16e9e80216231b,
+			0x66ef438d1190cde7,
+			0x3352255a140e0f76,
+			0x0ded7263109cf92e,
+			0x1befd79f7fdcc233,
+			0x6b68079a41a7c4c9,
+			0x25e45d324e6afb66,
+			0x431bd7b7519b500d,
+			0x7c83e4583f2dba31,
+			0x62bbd95a257130a3,
+			0x628c895d436c6125,
+			0x721da317333ab105,
+			0x2d1d5ae92443a858,
+			0x75a2a8d46763845e,
+			0x79838cb208edbdab,
+			0x0b03e0c64353d0cd,
+			0x54e49eb4189a769b,
+			0x2ca8861171f32454,
+			0x02901d820836c40e,
+			0x081386413a95f874,
+			0x7c3dbd3d1e7ff521,
+			0x6ceaf087737b8ddc,
+			0x4516dde922221a70,
+			0x614fd4a13006c83e,
+			0x5577f8e1419ac241,
+			0x05072367440badfc,
+			0x77465f013804823e,
+			0x5c482a977724c67e,
+			0x5e884adc2463b9ea,
+			0x2d51779651ead36b,
+			0x153ea438580bd78f,
+			0x70a64e2a3855585c,
+			0x2a487cb06a2342ec,
+			0x725a06fb1d4ed43b,
+			0x57e4ccaf2cd89a32,
+			0x4b588f547a6d8d3c,
+			0x6de91b18542289ec,
+			0x7644a45c38437fdb,
+			0x684a481a32fff902,
+			0x749abb43579478fe,
+			0x1ba026fa3dc240fb,
+			0x75c6c33a79a1deaa,
+			0x70c6a52912e685fb,
+			0x374a3fe6520eedd1,
+			0x23f9c13c4f4ef005,
+			0x275ac794649bb77c,
+			0x1cf10fd839386575,
+			0x235ba861180115be,
+			0x354fe9f947398c89,
+			0x741226bb15b5af5c,
+			0x10233c990d34b6a8,
+			0x615740953f6ab60f,
+			0x77ae35eb7e0c57b1,
+			0x310c50b3579be4f1,
+		},
+		.from_buff_len = 512,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0xffff,
+		.result = 0x35ba
+	},
+};
+
+#define NUM_DIFF_TESTS 4
+
+struct testcase diff_tests[NUM_DIFF_TESTS] = {
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef,
+		},
+		.from_buff_len = 8,
+		.to_buff = {
+			0xabababababababab,
+		},
+		.to_buff_len = 8,
+		.seed = 0,
+		.result = 0x7373
+	},
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef,
+		},
+		.from_buff_len = 7,
+		.to_buff = {
+			0xabababababababab,
+		},
+		.to_buff_len = 7,
+		.seed = 0,
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+		.result = 0xa673
+#else
+		.result = 0x73b7
+#endif
+	},
+	{
+		.from_buff = {
+			0,
+		},
+		.from_buff_len = 8,
+		.to_buff = {
+			0xabababababababab,
+		},
+		.to_buff_len = 8,
+		.seed = 0,
+		.result = 0xaeae
+	},
+	{
+		.from_buff = {
+			0xdeadbeefdeadbeef
+		},
+		.from_buff_len = 8,
+		.to_buff = {
+			0,
+		},
+		.to_buff_len = 8,
+		.seed = 0xffff,
+		.result = 0xc4c4
+	},
+};
+
+#define NUM_EDGE_TESTS 4
+
+struct testcase edge_tests[NUM_EDGE_TESTS] = {
+	{
+		.from_buff = {},
+		.from_buff_len = 0,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0,
+		.result = 0
+	},
+	{
+		.from_buff = {
+			0x1234
+		},
+		.from_buff_len = 0,
+		.to_buff = {
+			0x1234
+		},
+		.to_buff_len = 0,
+		.seed = 0,
+		.result = 0
+	},
+	{
+		.from_buff = {},
+		.from_buff_len = 0,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0x1234,
+		.result = 0x1234
+	},
+	{
+		.from_buff = {},
+		.from_buff_len = 512,
+		.to_buff = {},
+		.to_buff_len = 0,
+		.seed = 0xffff,
+		.result = 0xffff
+	},
+};
+
+static unsigned short trigger_csum_diff(const struct csum_diff_test *skel)
+{
+	u8 tmp_out[64 << 2] = {};
+	u8 tmp_in[64] = {};
+	int err;
+	int pfd;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = tmp_in,
+		.data_size_in = sizeof(tmp_in),
+		.data_out = tmp_out,
+		.data_size_out = sizeof(tmp_out),
+		.repeat = 1,
+	);
+	pfd = bpf_program__fd(skel->progs.compute_checksum);
+	err = bpf_prog_test_run_opts(pfd, &topts);
+	if (err)
+		return -1;
+
+	return skel->bss->result;
+}
+
+static void test_csum_diff(struct testcase *tests, int num_tests)
+{
+	struct csum_diff_test *skel;
+	unsigned short got;
+	int err;
+
+	for (int i = 0; i < num_tests; i++) {
+		skel = csum_diff_test__open();
+		if (!ASSERT_OK_PTR(skel, "csum_diff_test open"))
+			return;
+
+		skel->rodata->to_buff_len = tests[i].to_buff_len;
+		skel->rodata->from_buff_len = tests[i].from_buff_len;
+
+		err = csum_diff_test__load(skel);
+		if (!ASSERT_EQ(err, 0, "csum_diff_test load"))
+			goto out;
+
+		memcpy(skel->bss->to_buff, tests[i].to_buff, tests[i].to_buff_len);
+		memcpy(skel->bss->from_buff, tests[i].from_buff, tests[i].from_buff_len);
+		skel->bss->seed = tests[i].seed;
+
+		got = trigger_csum_diff(skel);
+		ASSERT_EQ(got, tests[i].result, "csum_diff result");
+
+		csum_diff_test__destroy(skel);
+	}
+
+	return;
+out:
+	csum_diff_test__destroy(skel);
+}
+
+void test_test_csum_diff(void)
+{
+	if (test__start_subtest("csum_diff_push"))
+		test_csum_diff(push_tests, NUM_PUSH_TESTS);
+	if (test__start_subtest("csum_diff_pull"))
+		test_csum_diff(pull_tests, NUM_PULL_TESTS);
+	if (test__start_subtest("csum_diff_diff"))
+		test_csum_diff(diff_tests, NUM_DIFF_TESTS);
+	if (test__start_subtest("csum_diff_edge"))
+		test_csum_diff(edge_tests, NUM_EDGE_TESTS);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c b/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c
new file mode 100644
index 000000000000..e905cbaf6b3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_global_funcs.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include "test_global_func1.skel.h"
+#include "test_global_func2.skel.h"
+#include "test_global_func3.skel.h"
+#include "test_global_func4.skel.h"
+#include "test_global_func5.skel.h"
+#include "test_global_func6.skel.h"
+#include "test_global_func7.skel.h"
+#include "test_global_func8.skel.h"
+#include "test_global_func9.skel.h"
+#include "test_global_func10.skel.h"
+#include "test_global_func11.skel.h"
+#include "test_global_func12.skel.h"
+#include "test_global_func13.skel.h"
+#include "test_global_func14.skel.h"
+#include "test_global_func15.skel.h"
+#include "test_global_func16.skel.h"
+#include "test_global_func17.skel.h"
+#include "test_global_func_ctx_args.skel.h"
+
+#include "bpf/libbpf_internal.h"
+#include "btf_helpers.h"
+
+static void check_ctx_arg_type(const struct btf *btf, const struct btf_param *p)
+{
+	const struct btf_type *t;
+	const char *s;
+
+	t = btf__type_by_id(btf, p->type);
+	if (!ASSERT_EQ(btf_kind(t), BTF_KIND_PTR, "ptr_t"))
+		return;
+
+	s = btf_type_raw_dump(btf, t->type);
+	if (!ASSERT_HAS_SUBSTR(s, "STRUCT 'bpf_perf_event_data' size=0 vlen=0",
+			       "ctx_struct_t"))
+		return;
+}
+
+static void subtest_ctx_arg_rewrite(void)
+{
+	struct test_global_func_ctx_args *skel = NULL;
+	struct bpf_prog_info info;
+	char func_info_buf[1024] __attribute__((aligned(8)));
+	struct bpf_func_info_min *rec;
+	struct btf *btf = NULL;
+	__u32 info_len = sizeof(info);
+	int err, fd, i;
+	struct btf *kern_btf = NULL;
+
+	kern_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(kern_btf, "kern_btf_load"))
+		return;
+
+	/* simple detection of kernel native arg:ctx tag support */
+	if (btf__find_by_name_kind(kern_btf, "bpf_subprog_arg_info", BTF_KIND_STRUCT) > 0) {
+		test__skip();
+		btf__free(kern_btf);
+		return;
+	}
+	btf__free(kern_btf);
+
+	skel = test_global_func_ctx_args__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.arg_tag_ctx_perf, true);
+
+	err = test_global_func_ctx_args__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	memset(&info, 0, sizeof(info));
+	info.func_info = ptr_to_u64(&func_info_buf);
+	info.nr_func_info = 3;
+	info.func_info_rec_size = sizeof(struct bpf_func_info_min);
+
+	fd = bpf_program__fd(skel->progs.arg_tag_ctx_perf);
+	err = bpf_prog_get_info_by_fd(fd, &info, &info_len);
+	if (!ASSERT_OK(err, "prog_info"))
+		goto out;
+
+	if (!ASSERT_EQ(info.nr_func_info, 3, "nr_func_info"))
+		goto out;
+
+	btf = btf__load_from_kernel_by_id(info.btf_id);
+	if (!ASSERT_OK_PTR(btf, "obj_kern_btf"))
+		goto out;
+
+	rec = (struct bpf_func_info_min *)func_info_buf;
+	for (i = 0; i < info.nr_func_info; i++, rec = (void *)rec + info.func_info_rec_size) {
+		const struct btf_type *fn_t, *proto_t;
+		const char *name;
+
+		if (rec->insn_off == 0)
+			continue; /* main prog, skip */
+
+		fn_t = btf__type_by_id(btf, rec->type_id);
+		if (!ASSERT_OK_PTR(fn_t, "fn_type"))
+			goto out;
+		if (!ASSERT_EQ(btf_kind(fn_t), BTF_KIND_FUNC, "fn_type_kind"))
+			goto out;
+		proto_t = btf__type_by_id(btf, fn_t->type);
+		if (!ASSERT_OK_PTR(proto_t, "proto_type"))
+			goto out;
+
+		name = btf__name_by_offset(btf, fn_t->name_off);
+		if (strcmp(name, "subprog_ctx_tag") == 0) {
+			/* int subprog_ctx_tag(void *ctx __arg_ctx) */
+			if (!ASSERT_EQ(btf_vlen(proto_t), 1, "arg_cnt"))
+				goto out;
+
+			/* arg 0 is PTR -> STRUCT bpf_perf_event_data */
+			check_ctx_arg_type(btf, &btf_params(proto_t)[0]);
+		} else if (strcmp(name, "subprog_multi_ctx_tags") == 0) {
+			/* int subprog_multi_ctx_tags(void *ctx1 __arg_ctx,
+			 *			      struct my_struct *mem,
+			 *			      void *ctx2 __arg_ctx)
+			 */
+			if (!ASSERT_EQ(btf_vlen(proto_t), 3, "arg_cnt"))
+				goto out;
+
+			/* arg 0 is PTR -> STRUCT bpf_perf_event_data */
+			check_ctx_arg_type(btf, &btf_params(proto_t)[0]);
+			/* arg 2 is PTR -> STRUCT bpf_perf_event_data */
+			check_ctx_arg_type(btf, &btf_params(proto_t)[2]);
+		} else {
+			ASSERT_FAIL("unexpected subprog %s", name);
+			goto out;
+		}
+	}
+
+out:
+	btf__free(btf);
+	test_global_func_ctx_args__destroy(skel);
+}
+
+void test_test_global_funcs(void)
+{
+	RUN_TESTS(test_global_func1);
+	RUN_TESTS(test_global_func2);
+	RUN_TESTS(test_global_func3);
+	RUN_TESTS(test_global_func4);
+	RUN_TESTS(test_global_func5);
+	RUN_TESTS(test_global_func6);
+	RUN_TESTS(test_global_func7);
+	RUN_TESTS(test_global_func8);
+	RUN_TESTS(test_global_func9);
+	RUN_TESTS(test_global_func10);
+	RUN_TESTS(test_global_func11);
+	RUN_TESTS(test_global_func12);
+	RUN_TESTS(test_global_func13);
+	RUN_TESTS(test_global_func14);
+	RUN_TESTS(test_global_func15);
+	RUN_TESTS(test_global_func16);
+	RUN_TESTS(test_global_func17);
+	RUN_TESTS(test_global_func_ctx_args);
+
+	if (test__start_subtest("ctx_arg_rewrite"))
+		subtest_ctx_arg_rewrite();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_ima.c b/tools/testing/selftests/bpf/prog_tests/test_ima.c
new file mode 100644
index 000000000000..810b14981c2e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_ima.c
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2020 Google LLC.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <test_progs.h>
+#include <linux/ring_buffer.h>
+
+#include "ima.skel.h"
+
+#define MAX_SAMPLES 4
+
+static int _run_measured_process(const char *measured_dir, u32 *monitored_pid,
+				 const char *cmd)
+{
+	int child_pid, child_status;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		*monitored_pid = getpid();
+		execlp("./ima_setup.sh", "./ima_setup.sh", cmd, measured_dir,
+		       NULL);
+		exit(errno);
+
+	} else if (child_pid > 0) {
+		waitpid(child_pid, &child_status, 0);
+		return WEXITSTATUS(child_status);
+	}
+
+	return -EINVAL;
+}
+
+static int run_measured_process(const char *measured_dir, u32 *monitored_pid)
+{
+	return _run_measured_process(measured_dir, monitored_pid, "run");
+}
+
+static u64 ima_hash_from_bpf[MAX_SAMPLES];
+static int ima_hash_from_bpf_idx;
+
+static int process_sample(void *ctx, void *data, size_t len)
+{
+	if (ima_hash_from_bpf_idx >= MAX_SAMPLES)
+		return -ENOSPC;
+
+	ima_hash_from_bpf[ima_hash_from_bpf_idx++] = *((u64 *)data);
+	return 0;
+}
+
+static void test_init(struct ima__bss *bss)
+{
+	ima_hash_from_bpf_idx = 0;
+
+	bss->use_ima_file_hash = false;
+	bss->enable_bprm_creds_for_exec = false;
+	bss->enable_kernel_read_file = false;
+	bss->test_deny = false;
+}
+
+void test_test_ima(void)
+{
+	char measured_dir_template[] = "/tmp/ima_measuredXXXXXX";
+	struct ring_buffer *ringbuf = NULL;
+	const char *measured_dir;
+	u64 bin_true_sample;
+	char cmd[256];
+
+	int err, duration = 0, fresh_digest_idx = 0;
+	struct ima *skel = NULL;
+
+	skel = ima__open_and_load();
+	if (CHECK(!skel, "skel_load", "skeleton failed\n"))
+		goto close_prog;
+
+	ringbuf = ring_buffer__new(bpf_map__fd(skel->maps.ringbuf),
+				   process_sample, NULL, NULL);
+	if (!ASSERT_OK_PTR(ringbuf, "ringbuf"))
+		goto close_prog;
+
+	err = ima__attach(skel);
+	if (CHECK(err, "attach", "attach failed: %d\n", err))
+		goto close_prog;
+
+	measured_dir = mkdtemp(measured_dir_template);
+	if (CHECK(measured_dir == NULL, "mkdtemp", "err %d\n", errno))
+		goto close_prog;
+
+	snprintf(cmd, sizeof(cmd), "./ima_setup.sh setup %s", measured_dir);
+	err = system(cmd);
+	if (CHECK(err, "failed to run command", "%s, errno = %d\n", cmd, errno))
+		goto close_clean;
+
+	/*
+	 * Test #1
+	 * - Goal: obtain a sample with the bpf_ima_inode_hash() helper
+	 * - Expected result:  1 sample (/bin/true)
+	 */
+	test_init(skel->bss);
+	err = run_measured_process(measured_dir, &skel->bss->monitored_pid);
+	if (CHECK(err, "run_measured_process #1", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_EQ(err, 1, "num_samples_or_err");
+	ASSERT_NEQ(ima_hash_from_bpf[0], 0, "ima_hash");
+
+	/*
+	 * Test #2
+	 * - Goal: obtain samples with the bpf_ima_file_hash() helper
+	 * - Expected result: 2 samples (./ima_setup.sh, /bin/true)
+	 */
+	test_init(skel->bss);
+	skel->bss->use_ima_file_hash = true;
+	err = run_measured_process(measured_dir, &skel->bss->monitored_pid);
+	if (CHECK(err, "run_measured_process #2", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_EQ(err, 2, "num_samples_or_err");
+	ASSERT_NEQ(ima_hash_from_bpf[0], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[1], 0, "ima_hash");
+	bin_true_sample = ima_hash_from_bpf[1];
+
+	/*
+	 * Test #3
+	 * - Goal: confirm that bpf_ima_inode_hash() returns a non-fresh digest
+	 * - Expected result:
+	 *   1 sample (/bin/true: fresh) if commit 62622dab0a28 applied
+	 *   2 samples (/bin/true: non-fresh, fresh) if commit 62622dab0a28 is
+	 *     not applied
+	 *
+	 * If commit 62622dab0a28 ("ima: return IMA digest value only when
+	 * IMA_COLLECTED flag is set") is applied, bpf_ima_inode_hash() refuses
+	 * to give a non-fresh digest, hence the correct result is 1 instead of
+	 * 2.
+	 */
+	test_init(skel->bss);
+
+	err = _run_measured_process(measured_dir, &skel->bss->monitored_pid,
+				    "modify-bin");
+	if (CHECK(err, "modify-bin #3", "err = %d\n", err))
+		goto close_clean;
+
+	skel->bss->enable_bprm_creds_for_exec = true;
+	err = run_measured_process(measured_dir, &skel->bss->monitored_pid);
+	if (CHECK(err, "run_measured_process #3", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_GE(err, 1, "num_samples_or_err");
+	if (err == 2) {
+		ASSERT_NEQ(ima_hash_from_bpf[0], 0, "ima_hash");
+		ASSERT_EQ(ima_hash_from_bpf[0], bin_true_sample,
+			  "sample_equal_or_err");
+		fresh_digest_idx = 1;
+	}
+
+	ASSERT_NEQ(ima_hash_from_bpf[fresh_digest_idx], 0, "ima_hash");
+	/* IMA refreshed the digest. */
+	ASSERT_NEQ(ima_hash_from_bpf[fresh_digest_idx], bin_true_sample,
+		   "sample_equal_or_err");
+
+	/*
+	 * Test #4
+	 * - Goal: verify that bpf_ima_file_hash() returns a fresh digest
+	 * - Expected result: 4 samples (./ima_setup.sh: fresh, fresh;
+	 *                               /bin/true: fresh, fresh)
+	 */
+	test_init(skel->bss);
+	skel->bss->use_ima_file_hash = true;
+	skel->bss->enable_bprm_creds_for_exec = true;
+	err = run_measured_process(measured_dir, &skel->bss->monitored_pid);
+	if (CHECK(err, "run_measured_process #4", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_EQ(err, 4, "num_samples_or_err");
+	ASSERT_NEQ(ima_hash_from_bpf[0], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[1], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[2], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[3], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[2], bin_true_sample,
+		   "sample_different_or_err");
+	ASSERT_EQ(ima_hash_from_bpf[3], ima_hash_from_bpf[2],
+		  "sample_equal_or_err");
+
+	skel->bss->use_ima_file_hash = false;
+	skel->bss->enable_bprm_creds_for_exec = false;
+	err = _run_measured_process(measured_dir, &skel->bss->monitored_pid,
+				    "restore-bin");
+	if (CHECK(err, "restore-bin #3", "err = %d\n", err))
+		goto close_clean;
+
+	/*
+	 * Test #5
+	 * - Goal: obtain a sample from the kernel_read_file hook
+	 * - Expected result: 2 samples (./ima_setup.sh, policy_test)
+	 */
+	test_init(skel->bss);
+	skel->bss->use_ima_file_hash = true;
+	skel->bss->enable_kernel_read_file = true;
+	err = _run_measured_process(measured_dir, &skel->bss->monitored_pid,
+				    "load-policy");
+	if (CHECK(err, "run_measured_process #5", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_EQ(err, 2, "num_samples_or_err");
+	ASSERT_NEQ(ima_hash_from_bpf[0], 0, "ima_hash");
+	ASSERT_NEQ(ima_hash_from_bpf[1], 0, "ima_hash");
+
+	/*
+	 * Test #6
+	 * - Goal: ensure that the kernel_read_file hook denies an operation
+	 * - Expected result: 0 samples
+	 */
+	test_init(skel->bss);
+	skel->bss->enable_kernel_read_file = true;
+	skel->bss->test_deny = true;
+	err = _run_measured_process(measured_dir, &skel->bss->monitored_pid,
+				    "load-policy");
+	if (CHECK(!err, "run_measured_process #6", "err = %d\n", err))
+		goto close_clean;
+
+	err = ring_buffer__consume(ringbuf);
+	ASSERT_EQ(err, 0, "num_samples_or_err");
+
+close_clean:
+	snprintf(cmd, sizeof(cmd), "./ima_setup.sh cleanup %s", measured_dir);
+	err = system(cmd);
+	CHECK(err, "failed to run command", "%s, errno = %d\n", cmd, errno);
+close_prog:
+	ring_buffer__free(ringbuf);
+	ima__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_ldsx_insn.c b/tools/testing/selftests/bpf/prog_tests/test_ldsx_insn.c
new file mode 100644
index 000000000000..375677c19146
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_ldsx_insn.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates.*/
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_ldsx_insn.skel.h"
+
+static void test_map_val_and_probed_memory(void)
+{
+	struct test_ldsx_insn *skel;
+	int err;
+
+	skel = test_ldsx_insn__open();
+	if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
+		return;
+
+	if (skel->rodata->skip) {
+		test__skip();
+		goto out;
+	}
+
+	bpf_program__set_autoload(skel->progs.rdonly_map_prog, true);
+	bpf_program__set_autoload(skel->progs.map_val_prog, true);
+	bpf_program__set_autoload(skel->progs.test_ptr_struct_arg, true);
+
+	err = test_ldsx_insn__load(skel);
+	if (!ASSERT_OK(err, "test_ldsx_insn__load"))
+		goto out;
+
+	err = test_ldsx_insn__attach(skel);
+	if (!ASSERT_OK(err, "test_ldsx_insn__attach"))
+		goto out;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->done1, 1, "done1");
+	ASSERT_EQ(skel->bss->ret1, 1, "ret1");
+	ASSERT_EQ(skel->bss->done2, 1, "done2");
+	ASSERT_EQ(skel->bss->ret2, 1, "ret2");
+	ASSERT_EQ(skel->bss->int_member, -1, "int_member");
+
+out:
+	test_ldsx_insn__destroy(skel);
+}
+
+static void test_ctx_member_sign_ext(void)
+{
+	struct test_ldsx_insn *skel;
+	int err, fd, cgroup_fd;
+	char buf[16] = {0};
+	socklen_t optlen;
+
+	cgroup_fd = test__join_cgroup("/ldsx_test");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup /ldsx_test"))
+		return;
+
+	skel = test_ldsx_insn__open();
+	if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
+		goto close_cgroup_fd;
+
+	if (skel->rodata->skip) {
+		test__skip();
+		goto destroy_skel;
+	}
+
+	bpf_program__set_autoload(skel->progs._getsockopt, true);
+
+	err = test_ldsx_insn__load(skel);
+	if (!ASSERT_OK(err, "test_ldsx_insn__load"))
+		goto destroy_skel;
+
+	skel->links._getsockopt =
+		bpf_program__attach_cgroup(skel->progs._getsockopt, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links._getsockopt, "getsockopt_link"))
+		goto destroy_skel;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket"))
+		goto destroy_skel;
+
+	optlen = sizeof(buf);
+	(void)getsockopt(fd, SOL_IP, IP_TTL, buf, &optlen);
+
+	ASSERT_EQ(skel->bss->set_optlen, -1, "optlen");
+	ASSERT_EQ(skel->bss->set_retval, -1, "retval");
+
+	close(fd);
+destroy_skel:
+	test_ldsx_insn__destroy(skel);
+close_cgroup_fd:
+	close(cgroup_fd);
+}
+
+static void test_ctx_member_narrow_sign_ext(void)
+{
+	struct test_ldsx_insn *skel;
+	struct __sk_buff skb = {};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		    .data_in = &pkt_v4,
+		    .data_size_in = sizeof(pkt_v4),
+		    .ctx_in = &skb,
+		    .ctx_size_in = sizeof(skb),
+	);
+	int err, prog_fd;
+
+	skel = test_ldsx_insn__open();
+	if (!ASSERT_OK_PTR(skel, "test_ldsx_insn__open"))
+		return;
+
+	if (skel->rodata->skip) {
+		test__skip();
+		goto out;
+	}
+
+	bpf_program__set_autoload(skel->progs._tc, true);
+
+	err = test_ldsx_insn__load(skel);
+	if (!ASSERT_OK(err, "test_ldsx_insn__load"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs._tc);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+
+	ASSERT_EQ(skel->bss->set_mark, -2, "set_mark");
+
+out:
+	test_ldsx_insn__destroy(skel);
+}
+
+void test_ldsx_insn(void)
+{
+	if (test__start_subtest("map_val and probed_memory"))
+		test_map_val_and_probed_memory();
+	if (test__start_subtest("ctx_member_sign_ext"))
+		test_ctx_member_sign_ext();
+	if (test__start_subtest("ctx_member_narrow_sign_ext"))
+		test_ctx_member_narrow_sign_ext();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_local_storage.c b/tools/testing/selftests/bpf/prog_tests/test_local_storage.c
new file mode 100644
index 000000000000..bcf2e1905ed7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_local_storage.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2020 Google LLC.
+ */
+
+#include <asm-generic/errno-base.h>
+#include <sys/stat.h>
+#include <test_progs.h>
+#include <linux/limits.h>
+
+#include "local_storage.skel.h"
+#include "network_helpers.h"
+#include "task_local_storage_helpers.h"
+
+#define TEST_STORAGE_VALUE 0xbeefdead
+
+struct storage {
+	void *inode;
+	unsigned int value;
+};
+
+/* Fork and exec the provided rm binary and return the exit code of the
+ * forked process and its pid.
+ */
+static int run_self_unlink(struct local_storage *skel, const char *rm_path)
+{
+	int child_pid, child_status, ret;
+	int null_fd;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		null_fd = open("/dev/null", O_WRONLY);
+		dup2(null_fd, STDOUT_FILENO);
+		dup2(null_fd, STDERR_FILENO);
+		close(null_fd);
+
+		skel->bss->monitored_pid = getpid();
+		/* Use the copied /usr/bin/rm to delete itself
+		 * /tmp/copy_of_rm /tmp/copy_of_rm.
+		 */
+		ret = execlp(rm_path, rm_path, rm_path, NULL);
+		if (ret)
+			exit(errno);
+	} else if (child_pid > 0) {
+		waitpid(child_pid, &child_status, 0);
+		ASSERT_EQ(skel->data->task_storage_result, 0, "task_storage_result");
+		return WEXITSTATUS(child_status);
+	}
+
+	return -EINVAL;
+}
+
+static bool check_syscall_operations(int map_fd, int obj_fd)
+{
+	struct storage val = { .value = TEST_STORAGE_VALUE },
+		       lookup_val = { .value = 0 };
+	int err;
+
+	/* Looking up an existing element should fail initially */
+	err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0);
+	if (!ASSERT_EQ(err, -ENOENT, "bpf_map_lookup_elem"))
+		return false;
+
+	/* Create a new element */
+	err = bpf_map_update_elem(map_fd, &obj_fd, &val, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "bpf_map_update_elem"))
+		return false;
+
+	/* Lookup the newly created element */
+	err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0);
+	if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+		return false;
+
+	/* Check the value of the newly created element */
+	if (!ASSERT_EQ(lookup_val.value, val.value, "bpf_map_lookup_elem"))
+		return false;
+
+	err = bpf_map_delete_elem(map_fd, &obj_fd);
+	if (!ASSERT_OK(err, "bpf_map_delete_elem()"))
+		return false;
+
+	/* The lookup should fail, now that the element has been deleted */
+	err = bpf_map_lookup_elem_flags(map_fd, &obj_fd, &lookup_val, 0);
+	if (!ASSERT_EQ(err, -ENOENT, "bpf_map_lookup_elem"))
+		return false;
+
+	return true;
+}
+
+void test_test_local_storage(void)
+{
+	char tmp_dir_path[] = "/tmp/local_storageXXXXXX";
+	int err, serv_sk = -1, task_fd = -1, rm_fd = -1;
+	struct local_storage *skel = NULL;
+	char tmp_exec_path[64];
+	char cmd[256];
+
+	skel = local_storage__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_load"))
+		goto close_prog;
+
+	err = local_storage__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto close_prog;
+
+	task_fd = sys_pidfd_open(getpid(), 0);
+	if (!ASSERT_GE(task_fd, 0, "pidfd_open"))
+		goto close_prog;
+
+	if (!check_syscall_operations(bpf_map__fd(skel->maps.task_storage_map),
+				      task_fd))
+		goto close_prog;
+
+	if (!ASSERT_OK_PTR(mkdtemp(tmp_dir_path), "mkdtemp"))
+		goto close_prog;
+
+	snprintf(tmp_exec_path, sizeof(tmp_exec_path), "%s/copy_of_rm",
+		 tmp_dir_path);
+	snprintf(cmd, sizeof(cmd), "cp /bin/rm %s", tmp_exec_path);
+	if (!ASSERT_OK(system(cmd), "system(cp)"))
+		goto close_prog_rmdir;
+
+	rm_fd = open(tmp_exec_path, O_RDONLY);
+	if (!ASSERT_GE(rm_fd, 0, "open(tmp_exec_path)"))
+		goto close_prog_rmdir;
+
+	if (!check_syscall_operations(bpf_map__fd(skel->maps.inode_storage_map),
+				      rm_fd))
+		goto close_prog_rmdir;
+
+	/* Sets skel->bss->monitored_pid to the pid of the forked child
+	 * forks a child process that executes tmp_exec_path and tries to
+	 * unlink its executable. This operation should be denied by the loaded
+	 * LSM program.
+	 */
+	err = run_self_unlink(skel, tmp_exec_path);
+	if (!ASSERT_EQ(err, EPERM, "run_self_unlink"))
+		goto close_prog_rmdir;
+
+	/* Set the process being monitored to be the current process */
+	skel->bss->monitored_pid = getpid();
+
+	/* Move copy_of_rm to a new location so that it triggers the
+	 * inode_rename LSM hook with a new_dentry that has a NULL inode ptr.
+	 */
+	snprintf(cmd, sizeof(cmd), "mv %s/copy_of_rm %s/check_null_ptr",
+		 tmp_dir_path, tmp_dir_path);
+	if (!ASSERT_OK(system(cmd), "system(mv)"))
+		goto close_prog_rmdir;
+
+	ASSERT_EQ(skel->data->inode_storage_result, 0, "inode_storage_result");
+
+	serv_sk = start_server(AF_INET6, SOCK_STREAM, NULL, 0, 0);
+	if (!ASSERT_GE(serv_sk, 0, "start_server"))
+		goto close_prog_rmdir;
+
+	ASSERT_EQ(skel->data->sk_storage_result, 0, "sk_storage_result");
+
+	if (!check_syscall_operations(bpf_map__fd(skel->maps.sk_storage_map),
+				      serv_sk))
+		goto close_prog_rmdir;
+
+close_prog_rmdir:
+	snprintf(cmd, sizeof(cmd), "rm -rf %s", tmp_dir_path);
+	system(cmd);
+close_prog:
+	close(serv_sk);
+	close(rm_fd);
+	close(task_fd);
+	local_storage__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_lsm.c b/tools/testing/selftests/bpf/prog_tests/test_lsm.c
new file mode 100644
index 000000000000..bdc4fc06bc5a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_lsm.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2020 Google LLC.
+ */
+
+#include <test_progs.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <stdlib.h>
+
+#include "lsm.skel.h"
+#include "lsm_tailcall.skel.h"
+
+char *CMD_ARGS[] = {"true", NULL};
+
+#define GET_PAGE_ADDR(ADDR, PAGE_SIZE)					\
+	(char *)(((unsigned long) (ADDR + PAGE_SIZE)) & ~(PAGE_SIZE-1))
+
+int stack_mprotect(void)
+{
+	void *buf;
+	long sz;
+	int ret;
+
+	sz = sysconf(_SC_PAGESIZE);
+	if (sz < 0)
+		return sz;
+
+	buf = alloca(sz * 3);
+	ret = mprotect(GET_PAGE_ADDR(buf, sz), sz,
+		       PROT_READ | PROT_WRITE | PROT_EXEC);
+	return ret;
+}
+
+int exec_cmd(int *monitored_pid)
+{
+	int child_pid, child_status;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		*monitored_pid = getpid();
+		execvp(CMD_ARGS[0], CMD_ARGS);
+		return -EINVAL;
+	} else if (child_pid > 0) {
+		waitpid(child_pid, &child_status, 0);
+		return child_status;
+	}
+
+	return -EINVAL;
+}
+
+static int test_lsm(struct lsm *skel)
+{
+	struct bpf_link *link;
+	int buf = 1234;
+	int err;
+
+	err = lsm__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		return err;
+
+	/* Check that already linked program can't be attached again. */
+	link = bpf_program__attach(skel->progs.test_int_hook);
+	if (!ASSERT_ERR_PTR(link, "attach_link"))
+		return -1;
+
+	err = exec_cmd(&skel->bss->monitored_pid);
+	if (!ASSERT_OK(err, "exec_cmd"))
+		return err;
+
+	ASSERT_EQ(skel->bss->bprm_count, 1, "bprm_count");
+
+	skel->bss->monitored_pid = getpid();
+
+	err = stack_mprotect();
+	if (!ASSERT_EQ(err, -1, "stack_mprotect") ||
+	    !ASSERT_EQ(errno, EPERM, "stack_mprotect"))
+		return err;
+
+	ASSERT_EQ(skel->bss->mprotect_count, 1, "mprotect_count");
+
+	syscall(__NR_setdomainname, &buf, -2L);
+	syscall(__NR_setdomainname, 0, -3L);
+	syscall(__NR_setdomainname, ~0L, -4L);
+
+	ASSERT_EQ(skel->bss->copy_test, 3, "copy_test");
+
+	lsm__detach(skel);
+
+	skel->bss->copy_test = 0;
+	skel->bss->bprm_count = 0;
+	skel->bss->mprotect_count = 0;
+	return 0;
+}
+
+static void test_lsm_basic(void)
+{
+	struct lsm *skel = NULL;
+	int err;
+
+	skel = lsm__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "lsm_skel_load"))
+		goto close_prog;
+
+	err = test_lsm(skel);
+	if (!ASSERT_OK(err, "test_lsm_first_attach"))
+		goto close_prog;
+
+	err = test_lsm(skel);
+	ASSERT_OK(err, "test_lsm_second_attach");
+
+close_prog:
+	lsm__destroy(skel);
+}
+
+static void test_lsm_tailcall(void)
+{
+	struct lsm_tailcall *skel = NULL;
+	int map_fd, prog_fd;
+	int err, key;
+
+	skel = lsm_tailcall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "lsm_tailcall__skel_load"))
+		goto close_prog;
+
+	map_fd = bpf_map__fd(skel->maps.jmp_table);
+	if (CHECK_FAIL(map_fd < 0))
+		goto close_prog;
+
+	prog_fd = bpf_program__fd(skel->progs.lsm_file_permission_prog);
+	if (CHECK_FAIL(prog_fd < 0))
+		goto close_prog;
+
+	key = 0;
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	if (CHECK_FAIL(!err))
+		goto close_prog;
+
+	prog_fd = bpf_program__fd(skel->progs.lsm_kernfs_init_security_prog);
+	if (CHECK_FAIL(prog_fd < 0))
+		goto close_prog;
+
+	err = bpf_map_update_elem(map_fd, &key, &prog_fd, BPF_ANY);
+	if (CHECK_FAIL(err))
+		goto close_prog;
+
+close_prog:
+	lsm_tailcall__destroy(skel);
+}
+
+void test_test_lsm(void)
+{
+	if (test__start_subtest("lsm_basic"))
+		test_lsm_basic();
+	if (test__start_subtest("lsm_tailcall"))
+		test_lsm_tailcall();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_mmap_inner_array.c b/tools/testing/selftests/bpf/prog_tests/test_mmap_inner_array.c
new file mode 100644
index 000000000000..ce745776ed18
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_mmap_inner_array.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <sys/mman.h>
+#include "mmap_inner_array.skel.h"
+
+void test_mmap_inner_array(void)
+{
+	const long page_size = sysconf(_SC_PAGE_SIZE);
+	struct mmap_inner_array *skel;
+	int inner_array_fd, err;
+	void *tmp;
+	__u64 *val;
+
+	skel = mmap_inner_array__open_and_load();
+
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	inner_array_fd = bpf_map__fd(skel->maps.inner_array);
+	tmp = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, inner_array_fd, 0);
+	if (!ASSERT_OK_PTR(tmp, "inner array mmap"))
+		goto out;
+	val = (void *)tmp;
+
+	err = mmap_inner_array__attach(skel);
+	if (!ASSERT_OK(err, "attach"))
+		goto out_unmap;
+
+	skel->bss->pid = getpid();
+	usleep(1);
+
+	/* pid is set, pid_match == true and outer_map_match == false */
+	ASSERT_TRUE(skel->bss->pid_match, "pid match 1");
+	ASSERT_FALSE(skel->bss->outer_map_match, "outer map match 1");
+	ASSERT_FALSE(skel->bss->done, "done 1");
+	ASSERT_EQ(*val, 0, "value match 1");
+
+	err = bpf_map__update_elem(skel->maps.outer_map,
+				   &skel->bss->pid, sizeof(skel->bss->pid),
+				   &inner_array_fd, sizeof(inner_array_fd),
+				   BPF_ANY);
+	if (!ASSERT_OK(err, "update elem"))
+		goto out_unmap;
+	usleep(1);
+
+	/* outer map key is set, outer_map_match == true */
+	ASSERT_TRUE(skel->bss->pid_match, "pid match 2");
+	ASSERT_TRUE(skel->bss->outer_map_match, "outer map match 2");
+	ASSERT_TRUE(skel->bss->done, "done 2");
+	ASSERT_EQ(*val, skel->data->match_value, "value match 2");
+
+out_unmap:
+	munmap(tmp, page_size);
+out:
+	mmap_inner_array__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_overhead.c b/tools/testing/selftests/bpf/prog_tests/test_overhead.c
new file mode 100644
index 000000000000..f27013e38d03
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_overhead.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2019 Facebook */
+#define _GNU_SOURCE
+#include <sched.h>
+#include <sys/prctl.h>
+#include <test_progs.h>
+
+#define MAX_CNT 100000
+
+static __u64 time_get_ns(void)
+{
+	struct timespec ts;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	return ts.tv_sec * 1000000000ull + ts.tv_nsec;
+}
+
+static int test_task_rename(const char *prog)
+{
+	int i, fd, duration = 0, err;
+	char buf[] = "test_overhead";
+	__u64 start_time;
+
+	fd = open("/proc/self/comm", O_WRONLY|O_TRUNC);
+	if (CHECK(fd < 0, "open /proc", "err %d", errno))
+		return -1;
+	start_time = time_get_ns();
+	for (i = 0; i < MAX_CNT; i++) {
+		err = write(fd, buf, sizeof(buf));
+		if (err < 0) {
+			CHECK(err < 0, "task rename", "err %d", errno);
+			close(fd);
+			return -1;
+		}
+	}
+	printf("task_rename %s\t%lluK events per sec\n", prog,
+	       MAX_CNT * 1000000ll / (time_get_ns() - start_time));
+	close(fd);
+	return 0;
+}
+
+static void test_run(const char *prog)
+{
+	test_task_rename(prog);
+}
+
+static void setaffinity(void)
+{
+	cpu_set_t cpuset;
+	int cpu = 0;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+	sched_setaffinity(0, sizeof(cpuset), &cpuset);
+}
+
+void test_test_overhead(void)
+{
+	const char *kprobe_name = "prog1";
+	const char *kretprobe_name = "prog2";
+	const char *raw_tp_name = "prog3";
+	const char *fentry_name = "prog4";
+	const char *fexit_name = "prog5";
+	const char *kprobe_func = "__set_task_comm";
+	struct bpf_program *kprobe_prog, *kretprobe_prog, *raw_tp_prog;
+	struct bpf_program *fentry_prog, *fexit_prog;
+	struct bpf_object *obj;
+	struct bpf_link *link;
+	int err, duration = 0;
+	char comm[16] = {};
+
+	if (CHECK_FAIL(prctl(PR_GET_NAME, comm, 0L, 0L, 0L)))
+		return;
+
+	obj = bpf_object__open_file("./test_overhead.bpf.o", NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
+		return;
+
+	kprobe_prog = bpf_object__find_program_by_name(obj, kprobe_name);
+	if (CHECK(!kprobe_prog, "find_probe",
+		  "prog '%s' not found\n", kprobe_name))
+		goto cleanup;
+	kretprobe_prog = bpf_object__find_program_by_name(obj, kretprobe_name);
+	if (CHECK(!kretprobe_prog, "find_probe",
+		  "prog '%s' not found\n", kretprobe_name))
+		goto cleanup;
+	raw_tp_prog = bpf_object__find_program_by_name(obj, raw_tp_name);
+	if (CHECK(!raw_tp_prog, "find_probe",
+		  "prog '%s' not found\n", raw_tp_name))
+		goto cleanup;
+	fentry_prog = bpf_object__find_program_by_name(obj, fentry_name);
+	if (CHECK(!fentry_prog, "find_probe",
+		  "prog '%s' not found\n", fentry_name))
+		goto cleanup;
+	fexit_prog = bpf_object__find_program_by_name(obj, fexit_name);
+	if (CHECK(!fexit_prog, "find_probe",
+		  "prog '%s' not found\n", fexit_name))
+		goto cleanup;
+	err = bpf_object__load(obj);
+	if (CHECK(err, "obj_load", "err %d\n", err))
+		goto cleanup;
+
+	setaffinity();
+
+	/* base line run */
+	test_run("base");
+
+	/* attach kprobe */
+	link = bpf_program__attach_kprobe(kprobe_prog, false /* retprobe */,
+					  kprobe_func);
+	if (!ASSERT_OK_PTR(link, "attach_kprobe"))
+		goto cleanup;
+	test_run("kprobe");
+	bpf_link__destroy(link);
+
+	/* attach kretprobe */
+	link = bpf_program__attach_kprobe(kretprobe_prog, true /* retprobe */,
+					  kprobe_func);
+	if (!ASSERT_OK_PTR(link, "attach_kretprobe"))
+		goto cleanup;
+	test_run("kretprobe");
+	bpf_link__destroy(link);
+
+	/* attach raw_tp */
+	link = bpf_program__attach_raw_tracepoint(raw_tp_prog, "task_rename");
+	if (!ASSERT_OK_PTR(link, "attach_raw_tp"))
+		goto cleanup;
+	test_run("raw_tp");
+	bpf_link__destroy(link);
+
+	/* attach fentry */
+	link = bpf_program__attach_trace(fentry_prog);
+	if (!ASSERT_OK_PTR(link, "attach_fentry"))
+		goto cleanup;
+	test_run("fentry");
+	bpf_link__destroy(link);
+
+	/* attach fexit */
+	link = bpf_program__attach_trace(fexit_prog);
+	if (!ASSERT_OK_PTR(link, "attach_fexit"))
+		goto cleanup;
+	test_run("fexit");
+	bpf_link__destroy(link);
+
+cleanup:
+	prctl(PR_SET_NAME, comm, 0L, 0L, 0L);
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_profiler.c b/tools/testing/selftests/bpf/prog_tests/test_profiler.c
new file mode 100644
index 000000000000..de24e8f0e738
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_profiler.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include "progs/profiler.h"
+#include "profiler1.skel.h"
+#include "profiler2.skel.h"
+#include "profiler3.skel.h"
+
+static int sanity_run(struct bpf_program *prog)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, test_attr);
+	__u64 args[] = {1, 2, 3};
+	int err, prog_fd;
+
+	prog_fd = bpf_program__fd(prog);
+	test_attr.ctx_in = args;
+	test_attr.ctx_size_in = sizeof(args);
+	err = bpf_prog_test_run_opts(prog_fd, &test_attr);
+	if (!ASSERT_OK(err, "test_run"))
+		return -1;
+
+	if (!ASSERT_OK(test_attr.retval, "test_run retval"))
+		return -1;
+
+	return 0;
+}
+
+void test_test_profiler(void)
+{
+	struct profiler1 *profiler1_skel = NULL;
+	struct profiler2 *profiler2_skel = NULL;
+	struct profiler3 *profiler3_skel = NULL;
+	__u32 duration = 0;
+	int err;
+
+	profiler1_skel = profiler1__open_and_load();
+	if (CHECK(!profiler1_skel, "profiler1_skel_load", "profiler1 skeleton failed\n"))
+		goto cleanup;
+
+	err = profiler1__attach(profiler1_skel);
+	if (CHECK(err, "profiler1_attach", "profiler1 attach failed: %d\n", err))
+		goto cleanup;
+
+	if (sanity_run(profiler1_skel->progs.raw_tracepoint__sched_process_exec))
+		goto cleanup;
+
+	profiler2_skel = profiler2__open_and_load();
+	if (CHECK(!profiler2_skel, "profiler2_skel_load", "profiler2 skeleton failed\n"))
+		goto cleanup;
+
+	err = profiler2__attach(profiler2_skel);
+	if (CHECK(err, "profiler2_attach", "profiler2 attach failed: %d\n", err))
+		goto cleanup;
+
+	if (sanity_run(profiler2_skel->progs.raw_tracepoint__sched_process_exec))
+		goto cleanup;
+
+	profiler3_skel = profiler3__open_and_load();
+	if (CHECK(!profiler3_skel, "profiler3_skel_load", "profiler3 skeleton failed\n"))
+		goto cleanup;
+
+	err = profiler3__attach(profiler3_skel);
+	if (CHECK(err, "profiler3_attach", "profiler3 attach failed: %d\n", err))
+		goto cleanup;
+
+	if (sanity_run(profiler3_skel->progs.raw_tracepoint__sched_process_exec))
+		goto cleanup;
+cleanup:
+	profiler1__destroy(profiler1_skel);
+	profiler2__destroy(profiler2_skel);
+	profiler3__destroy(profiler3_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c b/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c
new file mode 100644
index 000000000000..09ca13bdf6ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_skb_pkt_end.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "skb_pkt_end.skel.h"
+
+static int sanity_run(struct bpf_program *prog)
+{
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+		.flags = BPF_F_TEST_SKB_CHECKSUM_COMPLETE,
+	);
+
+	prog_fd = bpf_program__fd(prog);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	if (!ASSERT_OK(err, "test_run"))
+		return -1;
+	if (!ASSERT_EQ(topts.retval, 123, "test_run retval"))
+		return -1;
+	return 0;
+}
+
+void test_test_skb_pkt_end(void)
+{
+	struct skb_pkt_end *skb_pkt_end_skel = NULL;
+	__u32 duration = 0;
+	int err;
+
+	skb_pkt_end_skel = skb_pkt_end__open_and_load();
+	if (CHECK(!skb_pkt_end_skel, "skb_pkt_end_skel_load", "skb_pkt_end skeleton failed\n"))
+		goto cleanup;
+
+	err = skb_pkt_end__attach(skb_pkt_end_skel);
+	if (CHECK(err, "skb_pkt_end_attach", "skb_pkt_end attach failed: %d\n", err))
+		goto cleanup;
+
+	if (sanity_run(skb_pkt_end_skel->progs.main_prog))
+		goto cleanup;
+
+cleanup:
+	skb_pkt_end__destroy(skb_pkt_end_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_strncmp.c b/tools/testing/selftests/bpf/prog_tests/test_strncmp.c
new file mode 100644
index 000000000000..baceb0de9d49
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_strncmp.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include <test_progs.h>
+#include "strncmp_test.skel.h"
+
+static int trigger_strncmp(const struct strncmp_test *skel)
+{
+	int cmp;
+
+	usleep(1);
+
+	cmp = skel->bss->cmp_ret;
+	if (cmp > 0)
+		return 1;
+	if (cmp < 0)
+		return -1;
+	return 0;
+}
+
+/*
+ * Compare str and target after making str[i] != target[i].
+ * When exp is -1, make str[i] < target[i] and delta = -1.
+ */
+static void strncmp_full_str_cmp(struct strncmp_test *skel, const char *name,
+				 int exp)
+{
+	size_t nr = sizeof(skel->bss->str);
+	char *str = skel->bss->str;
+	int delta = exp;
+	int got;
+	size_t i;
+
+	memcpy(str, skel->rodata->target, nr);
+	for (i = 0; i < nr - 1; i++) {
+		str[i] += delta;
+
+		got = trigger_strncmp(skel);
+		ASSERT_EQ(got, exp, name);
+
+		str[i] -= delta;
+	}
+}
+
+static void test_strncmp_ret(void)
+{
+	struct strncmp_test *skel;
+	int err, got;
+
+	skel = strncmp_test__open();
+	if (!ASSERT_OK_PTR(skel, "strncmp_test open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.do_strncmp, true);
+
+	err = strncmp_test__load(skel);
+	if (!ASSERT_EQ(err, 0, "strncmp_test load"))
+		goto out;
+
+	err = strncmp_test__attach(skel);
+	if (!ASSERT_EQ(err, 0, "strncmp_test attach"))
+		goto out;
+
+	skel->bss->target_pid = getpid();
+
+	/* Empty str */
+	skel->bss->str[0] = '\0';
+	got = trigger_strncmp(skel);
+	ASSERT_EQ(got, -1, "strncmp: empty str");
+
+	/* Same string */
+	memcpy(skel->bss->str, skel->rodata->target, sizeof(skel->bss->str));
+	got = trigger_strncmp(skel);
+	ASSERT_EQ(got, 0, "strncmp: same str");
+
+	/* Not-null-terminated string  */
+	memcpy(skel->bss->str, skel->rodata->target, sizeof(skel->bss->str));
+	skel->bss->str[sizeof(skel->bss->str) - 1] = 'A';
+	got = trigger_strncmp(skel);
+	ASSERT_EQ(got, 1, "strncmp: not-null-term str");
+
+	strncmp_full_str_cmp(skel, "strncmp: less than", -1);
+	strncmp_full_str_cmp(skel, "strncmp: greater than", 1);
+out:
+	strncmp_test__destroy(skel);
+}
+
+static void test_strncmp_bad_not_const_str_size(void)
+{
+	struct strncmp_test *skel;
+	int err;
+
+	skel = strncmp_test__open();
+	if (!ASSERT_OK_PTR(skel, "strncmp_test open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.strncmp_bad_not_const_str_size, true);
+
+	err = strncmp_test__load(skel);
+	ASSERT_ERR(err, "strncmp_test load bad_not_const_str_size");
+
+	strncmp_test__destroy(skel);
+}
+
+static void test_strncmp_bad_writable_target(void)
+{
+	struct strncmp_test *skel;
+	int err;
+
+	skel = strncmp_test__open();
+	if (!ASSERT_OK_PTR(skel, "strncmp_test open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.strncmp_bad_writable_target, true);
+
+	err = strncmp_test__load(skel);
+	ASSERT_ERR(err, "strncmp_test load bad_writable_target");
+
+	strncmp_test__destroy(skel);
+}
+
+static void test_strncmp_bad_not_null_term_target(void)
+{
+	struct strncmp_test *skel;
+	int err;
+
+	skel = strncmp_test__open();
+	if (!ASSERT_OK_PTR(skel, "strncmp_test open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.strncmp_bad_not_null_term_target, true);
+
+	err = strncmp_test__load(skel);
+	ASSERT_ERR(err, "strncmp_test load bad_not_null_term_target");
+
+	strncmp_test__destroy(skel);
+}
+
+void test_test_strncmp(void)
+{
+	if (test__start_subtest("strncmp_ret"))
+		test_strncmp_ret();
+	if (test__start_subtest("strncmp_bad_not_const_str_size"))
+		test_strncmp_bad_not_const_str_size();
+	if (test__start_subtest("strncmp_bad_writable_target"))
+		test_strncmp_bad_writable_target();
+	if (test__start_subtest("strncmp_bad_not_null_term_target"))
+		test_strncmp_bad_not_null_term_target();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_id_ops_mapping.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_id_ops_mapping.c
new file mode 100644
index 000000000000..fd8762ba4b67
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_id_ops_mapping.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "struct_ops_id_ops_mapping1.skel.h"
+#include "struct_ops_id_ops_mapping2.skel.h"
+
+static void test_st_ops_id_ops_mapping(void)
+{
+	struct struct_ops_id_ops_mapping1 *skel1 = NULL;
+	struct struct_ops_id_ops_mapping2 *skel2 = NULL;
+	struct bpf_map_info info = {};
+	__u32 len = sizeof(info);
+	int err, pid, prog1_fd, prog2_fd;
+
+	skel1 = struct_ops_id_ops_mapping1__open_and_load();
+	if (!ASSERT_OK_PTR(skel1, "struct_ops_id_ops_mapping1__open"))
+		goto out;
+
+	skel2 = struct_ops_id_ops_mapping2__open_and_load();
+	if (!ASSERT_OK_PTR(skel2, "struct_ops_id_ops_mapping2__open"))
+		goto out;
+
+	err = bpf_map_get_info_by_fd(bpf_map__fd(skel1->maps.st_ops_map),
+				     &info, &len);
+	if (!ASSERT_OK(err, "bpf_map_get_info_by_fd"))
+		goto out;
+
+	skel1->bss->st_ops_id = info.id;
+
+	err = bpf_map_get_info_by_fd(bpf_map__fd(skel2->maps.st_ops_map),
+				     &info, &len);
+	if (!ASSERT_OK(err, "bpf_map_get_info_by_fd"))
+		goto out;
+
+	skel2->bss->st_ops_id = info.id;
+
+	err = struct_ops_id_ops_mapping1__attach(skel1);
+	if (!ASSERT_OK(err, "struct_ops_id_ops_mapping1__attach"))
+		goto out;
+
+	err = struct_ops_id_ops_mapping2__attach(skel2);
+	if (!ASSERT_OK(err, "struct_ops_id_ops_mapping2__attach"))
+		goto out;
+
+	/* run tracing prog that calls .test_1 and checks return */
+	pid = getpid();
+	skel1->bss->test_pid = pid;
+	skel2->bss->test_pid = pid;
+	sys_gettid();
+	skel1->bss->test_pid = 0;
+	skel2->bss->test_pid = 0;
+
+	/* run syscall_prog that calls .test_1 and checks return */
+	prog1_fd = bpf_program__fd(skel1->progs.syscall_prog);
+	err = bpf_prog_test_run_opts(prog1_fd, NULL);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+
+	prog2_fd = bpf_program__fd(skel2->progs.syscall_prog);
+	err = bpf_prog_test_run_opts(prog2_fd, NULL);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+
+	ASSERT_EQ(skel1->bss->test_err, 0, "skel1->bss->test_err");
+	ASSERT_EQ(skel2->bss->test_err, 0, "skel2->bss->test_err");
+
+out:
+	struct_ops_id_ops_mapping1__destroy(skel1);
+	struct_ops_id_ops_mapping2__destroy(skel2);
+}
+
+void test_struct_ops_id_ops_mapping(void)
+{
+	if (test__start_subtest("st_ops_id_ops_mapping"))
+		test_st_ops_id_ops_mapping();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_kptr_return.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_kptr_return.c
new file mode 100644
index 000000000000..467cc72a3588
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_kptr_return.c
@@ -0,0 +1,16 @@
+#include <test_progs.h>
+
+#include "struct_ops_kptr_return.skel.h"
+#include "struct_ops_kptr_return_fail__wrong_type.skel.h"
+#include "struct_ops_kptr_return_fail__invalid_scalar.skel.h"
+#include "struct_ops_kptr_return_fail__nonzero_offset.skel.h"
+#include "struct_ops_kptr_return_fail__local_kptr.skel.h"
+
+void test_struct_ops_kptr_return(void)
+{
+	RUN_TESTS(struct_ops_kptr_return);
+	RUN_TESTS(struct_ops_kptr_return_fail__wrong_type);
+	RUN_TESTS(struct_ops_kptr_return_fail__invalid_scalar);
+	RUN_TESTS(struct_ops_kptr_return_fail__nonzero_offset);
+	RUN_TESTS(struct_ops_kptr_return_fail__local_kptr);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_maybe_null.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_maybe_null.c
new file mode 100644
index 000000000000..01dc2613c8a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_maybe_null.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+
+#include "struct_ops_maybe_null.skel.h"
+#include "struct_ops_maybe_null_fail.skel.h"
+
+/* Test that the verifier accepts a program that access a nullable pointer
+ * with a proper check.
+ */
+static void maybe_null(void)
+{
+	struct struct_ops_maybe_null *skel;
+
+	skel = struct_ops_maybe_null__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open_and_load"))
+		return;
+
+	struct_ops_maybe_null__destroy(skel);
+}
+
+/* Test that the verifier rejects a program that access a nullable pointer
+ * without a check beforehand.
+ */
+static void maybe_null_fail(void)
+{
+	struct struct_ops_maybe_null_fail *skel;
+
+	skel = struct_ops_maybe_null_fail__open_and_load();
+	if (ASSERT_ERR_PTR(skel, "struct_ops_module_fail__open_and_load"))
+		return;
+
+	struct_ops_maybe_null_fail__destroy(skel);
+}
+
+void test_struct_ops_maybe_null(void)
+{
+	/* The verifier verifies the programs at load time, so testing both
+	 * programs in the same compile-unit is complicated. We run them in
+	 * separate objects to simplify the testing.
+	 */
+	if (test__start_subtest("maybe_null"))
+		maybe_null();
+	if (test__start_subtest("maybe_null_fail"))
+		maybe_null_fail();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c
new file mode 100644
index 000000000000..75a0dea511b3
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_module.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <time.h>
+
+#include <sys/epoll.h>
+
+#include "struct_ops_module.skel.h"
+#include "struct_ops_nulled_out_cb.skel.h"
+#include "struct_ops_forgotten_cb.skel.h"
+#include "struct_ops_detach.skel.h"
+#include "unsupported_ops.skel.h"
+
+static void check_map_info(struct bpf_map_info *info)
+{
+	struct bpf_btf_info btf_info;
+	char btf_name[256];
+	u32 btf_info_len = sizeof(btf_info);
+	int err, fd;
+
+	fd = bpf_btf_get_fd_by_id(info->btf_vmlinux_id);
+	if (!ASSERT_GE(fd, 0, "get_value_type_btf_obj_fd"))
+		return;
+
+	memset(&btf_info, 0, sizeof(btf_info));
+	btf_info.name = ptr_to_u64(btf_name);
+	btf_info.name_len = sizeof(btf_name);
+	err = bpf_btf_get_info_by_fd(fd, &btf_info, &btf_info_len);
+	if (!ASSERT_OK(err, "get_value_type_btf_obj_info"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(strcmp(btf_name, "bpf_testmod"), 0, "get_value_type_btf_obj_name"))
+		goto cleanup;
+
+cleanup:
+	close(fd);
+}
+
+static int attach_ops_and_check(struct struct_ops_module *skel,
+				struct bpf_map *map,
+				int expected_test_2_result)
+{
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(map);
+	ASSERT_OK_PTR(link, "attach_test_mod_1");
+	if (!link)
+		return -1;
+
+	/* test_{1,2}() would be called from bpf_dummy_reg() in bpf_testmod.c */
+	ASSERT_EQ(skel->bss->test_1_result, 0xdeadbeef, "test_1_result");
+	ASSERT_EQ(skel->bss->test_2_result, expected_test_2_result, "test_2_result");
+
+	bpf_link__destroy(link);
+	return 0;
+}
+
+static void test_struct_ops_load(void)
+{
+	struct struct_ops_module *skel;
+	struct bpf_map_info info = {};
+	int err;
+	u32 len;
+
+	skel = struct_ops_module__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open"))
+		return;
+
+	skel->struct_ops.testmod_1->data = 13;
+	skel->struct_ops.testmod_1->test_2 = skel->progs.test_3;
+	/* Since test_2() is not being used, it should be disabled from
+	 * auto-loading, or it will fail to load.
+	 */
+	bpf_program__set_autoload(skel->progs.test_2, false);
+	bpf_map__set_autocreate(skel->maps.testmod_zeroed, false);
+
+	err = struct_ops_module__load(skel);
+	if (!ASSERT_OK(err, "struct_ops_module_load"))
+		goto cleanup;
+
+	len = sizeof(info);
+	err = bpf_map_get_info_by_fd(bpf_map__fd(skel->maps.testmod_1), &info,
+				     &len);
+	if (!ASSERT_OK(err, "bpf_map_get_info_by_fd"))
+		goto cleanup;
+
+	check_map_info(&info);
+	/* test_3() will be called from bpf_dummy_reg() in bpf_testmod.c
+	 *
+	 * In bpf_testmod.c it will pass 4 and 13 (the value of data) to
+	 * .test_2.  So, the value of test_2_result should be 20 (4 + 13 +
+	 * 3).
+	 */
+	if (!attach_ops_and_check(skel, skel->maps.testmod_1, 20))
+		goto cleanup;
+	if (!attach_ops_and_check(skel, skel->maps.testmod_2, 12))
+		goto cleanup;
+
+cleanup:
+	struct_ops_module__destroy(skel);
+}
+
+static void test_struct_ops_not_zeroed(void)
+{
+	struct struct_ops_module *skel;
+	int err;
+
+	/* zeroed is 0, and zeroed_op is null */
+	skel = struct_ops_module__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open"))
+		return;
+
+	skel->struct_ops.testmod_zeroed->zeroed = 0;
+	/* zeroed_op prog should be not loaded automatically now */
+	skel->struct_ops.testmod_zeroed->zeroed_op = NULL;
+
+	err = struct_ops_module__load(skel);
+	ASSERT_OK(err, "struct_ops_module_load");
+
+	struct_ops_module__destroy(skel);
+
+	/* zeroed is not 0 */
+	skel = struct_ops_module__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open_not_zeroed"))
+		return;
+
+	/* libbpf should reject the testmod_zeroed since struct
+	 * bpf_testmod_ops in the kernel has no "zeroed" field and the
+	 * value of "zeroed" is non-zero.
+	 */
+	skel->struct_ops.testmod_zeroed->zeroed = 0xdeadbeef;
+	skel->struct_ops.testmod_zeroed->zeroed_op = NULL;
+	err = struct_ops_module__load(skel);
+	ASSERT_ERR(err, "struct_ops_module_load_not_zeroed");
+
+	struct_ops_module__destroy(skel);
+
+	/* zeroed_op is not null */
+	skel = struct_ops_module__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open_not_zeroed_op"))
+		return;
+
+	/* libbpf should reject the testmod_zeroed since the value of its
+	 * "zeroed_op" is not null.
+	 */
+	skel->struct_ops.testmod_zeroed->zeroed_op = skel->progs.test_3;
+	err = struct_ops_module__load(skel);
+	ASSERT_ERR(err, "struct_ops_module_load_not_zeroed_op");
+
+	struct_ops_module__destroy(skel);
+}
+
+/* The signature of an implementation might not match the signature of the
+ * function pointer prototype defined in the BPF program. This mismatch
+ * should be allowed as long as the behavior of the operator program
+ * adheres to the signature in the kernel. Libbpf should not enforce the
+ * signature; rather, let the kernel verifier handle the enforcement.
+ */
+static void test_struct_ops_incompatible(void)
+{
+	struct struct_ops_module *skel;
+	struct bpf_link *link;
+	int err;
+
+	skel = struct_ops_module__open();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_module_open"))
+		return;
+
+	bpf_map__set_autocreate(skel->maps.testmod_zeroed, false);
+
+	err = struct_ops_module__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_incompatible);
+	if (ASSERT_OK_PTR(link, "attach_struct_ops"))
+		bpf_link__destroy(link);
+
+cleanup:
+	struct_ops_module__destroy(skel);
+}
+
+/* validate that it's ok to "turn off" callback that kernel supports */
+static void test_struct_ops_nulled_out_cb(void)
+{
+	struct struct_ops_nulled_out_cb *skel;
+	int err;
+
+	skel = struct_ops_nulled_out_cb__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	/* kernel knows about test_1, but we still null it out */
+	skel->struct_ops.ops->test_1 = NULL;
+
+	err = struct_ops_nulled_out_cb__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	ASSERT_FALSE(bpf_program__autoload(skel->progs.test_1_turn_off), "prog_autoload");
+	ASSERT_LT(bpf_program__fd(skel->progs.test_1_turn_off), 0, "prog_fd");
+
+cleanup:
+	struct_ops_nulled_out_cb__destroy(skel);
+}
+
+/* validate that libbpf generates reasonable error message if struct_ops is
+ * not referenced in any struct_ops map
+ */
+static void test_struct_ops_forgotten_cb(void)
+{
+	struct struct_ops_forgotten_cb *skel;
+	char *log;
+	int err;
+
+	skel = struct_ops_forgotten_cb__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	start_libbpf_log_capture();
+
+	err = struct_ops_forgotten_cb__load(skel);
+	if (!ASSERT_ERR(err, "skel_load"))
+		goto cleanup;
+
+	log = stop_libbpf_log_capture();
+	ASSERT_HAS_SUBSTR(log,
+			  "prog 'test_1_forgotten': SEC(\"struct_ops\") program isn't referenced anywhere, did you forget to use it?",
+			  "libbpf_log");
+	free(log);
+
+	struct_ops_forgotten_cb__destroy(skel);
+
+	/* now let's programmatically use it, we should be fine now */
+	skel = struct_ops_forgotten_cb__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->struct_ops.ops->test_1 = skel->progs.test_1_forgotten; /* not anymore */
+
+	err = struct_ops_forgotten_cb__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+cleanup:
+	struct_ops_forgotten_cb__destroy(skel);
+}
+
+/* Detach a link from a user space program */
+static void test_detach_link(void)
+{
+	struct epoll_event ev, events[2];
+	struct struct_ops_detach *skel;
+	struct bpf_link *link = NULL;
+	int fd, epollfd = -1, nfds;
+	int err;
+
+	skel = struct_ops_detach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_detach__open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.testmod_do_detach);
+	if (!ASSERT_OK_PTR(link, "attach_struct_ops"))
+		goto cleanup;
+
+	fd = bpf_link__fd(link);
+	if (!ASSERT_GE(fd, 0, "link_fd"))
+		goto cleanup;
+
+	epollfd = epoll_create1(0);
+	if (!ASSERT_GE(epollfd, 0, "epoll_create1"))
+		goto cleanup;
+
+	ev.events = EPOLLHUP;
+	ev.data.fd = fd;
+	err = epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &ev);
+	if (!ASSERT_OK(err, "epoll_ctl"))
+		goto cleanup;
+
+	err = bpf_link__detach(link);
+	if (!ASSERT_OK(err, "detach_link"))
+		goto cleanup;
+
+	/* Wait for EPOLLHUP */
+	nfds = epoll_wait(epollfd, events, 2, 500);
+	if (!ASSERT_EQ(nfds, 1, "epoll_wait"))
+		goto cleanup;
+
+	if (!ASSERT_EQ(events[0].data.fd, fd, "epoll_wait_fd"))
+		goto cleanup;
+	if (!ASSERT_TRUE(events[0].events & EPOLLHUP, "events[0].events"))
+		goto cleanup;
+
+cleanup:
+	if (epollfd >= 0)
+		close(epollfd);
+	bpf_link__destroy(link);
+	struct_ops_detach__destroy(skel);
+}
+
+void serial_test_struct_ops_module(void)
+{
+	if (test__start_subtest("struct_ops_load"))
+		test_struct_ops_load();
+	if (test__start_subtest("struct_ops_not_zeroed"))
+		test_struct_ops_not_zeroed();
+	if (test__start_subtest("struct_ops_incompatible"))
+		test_struct_ops_incompatible();
+	if (test__start_subtest("struct_ops_null_out_cb"))
+		test_struct_ops_nulled_out_cb();
+	if (test__start_subtest("struct_ops_forgotten_cb"))
+		test_struct_ops_forgotten_cb();
+	if (test__start_subtest("test_detach_link"))
+		test_detach_link();
+	RUN_TESTS(unsupported_ops);
+}
+
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_multi_pages.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_multi_pages.c
new file mode 100644
index 000000000000..645d32b5160c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_multi_pages.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+
+#include "struct_ops_multi_pages.skel.h"
+
+static void do_struct_ops_multi_pages(void)
+{
+	struct struct_ops_multi_pages *skel;
+	struct bpf_link *link;
+
+	/* The size of all trampolines of skel->maps.multi_pages should be
+	 * over 1 page (at least for x86).
+	 */
+	skel = struct_ops_multi_pages__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "struct_ops_multi_pages_open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.multi_pages);
+	ASSERT_OK_PTR(link, "attach_multi_pages");
+
+	bpf_link__destroy(link);
+	struct_ops_multi_pages__destroy(skel);
+}
+
+void test_struct_ops_multi_pages(void)
+{
+	if (test__start_subtest("multi_pages"))
+		do_struct_ops_multi_pages();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_no_cfi.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_no_cfi.c
new file mode 100644
index 000000000000..106ea447965a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_no_cfi.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <testing_helpers.h>
+
+static void load_bpf_test_no_cfi(void)
+{
+	int fd;
+	int err;
+
+	fd = open("bpf_test_no_cfi.ko", O_RDONLY);
+	if (!ASSERT_GE(fd, 0, "open"))
+		return;
+
+	/* The module will try to register a struct_ops type without
+	 * cfi_stubs and with cfi_stubs.
+	 *
+	 * The one without cfi_stub should fail. The module will be loaded
+	 * successfully only if the result of the registration is as
+	 * expected, or it fails.
+	 */
+	err = finit_module(fd, "", 0);
+	close(fd);
+	if (!ASSERT_OK(err, "finit_module"))
+		return;
+
+	err = delete_module("bpf_test_no_cfi", 0);
+	ASSERT_OK(err, "delete_module");
+}
+
+void test_struct_ops_no_cfi(void)
+{
+	if (test__start_subtest("load_bpf_test_no_cfi"))
+		load_bpf_test_no_cfi();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_struct_ops_refcounted.c b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_refcounted.c
new file mode 100644
index 000000000000..da60c715fc59
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_struct_ops_refcounted.c
@@ -0,0 +1,14 @@
+#include <test_progs.h>
+
+#include "struct_ops_refcounted.skel.h"
+#include "struct_ops_refcounted_fail__ref_leak.skel.h"
+#include "struct_ops_refcounted_fail__global_subprog.skel.h"
+#include "struct_ops_refcounted_fail__tail_call.skel.h"
+
+void test_struct_ops_refcounted(void)
+{
+	RUN_TESTS(struct_ops_refcounted);
+	RUN_TESTS(struct_ops_refcounted_fail__ref_leak);
+	RUN_TESTS(struct_ops_refcounted_fail__global_subprog);
+	RUN_TESTS(struct_ops_refcounted_fail__tail_call);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_sysctl.c b/tools/testing/selftests/bpf/prog_tests/test_sysctl.c
new file mode 100644
index 000000000000..273dd41ca09e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_sysctl.c
@@ -0,0 +1,1612 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include "test_progs.h"
+#include "cgroup_helpers.h"
+
+#define CG_PATH			"/foo"
+#define MAX_INSNS		512
+#define FIXUP_SYSCTL_VALUE	0
+
+char bpf_log_buf[BPF_LOG_BUF_SIZE];
+
+struct sysctl_test {
+	const char *descr;
+	size_t fixup_value_insn;
+	struct bpf_insn	insns[MAX_INSNS];
+	const char *prog_file;
+	enum bpf_attach_type attach_type;
+	const char *sysctl;
+	int open_flags;
+	int seek;
+	const char *newval;
+	const char *oldval;
+	enum {
+		LOAD_REJECT,
+		ATTACH_REJECT,
+		OP_EPERM,
+		SUCCESS,
+	} result;
+};
+
+static struct sysctl_test tests[] = {
+	{
+		.descr = "sysctl wrong attach_type",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = 0,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = ATTACH_REJECT,
+	},
+	{
+		.descr = "sysctl:read allow all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl:read deny all",
+		.insns = {
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "ctx:write sysctl:read read ok",
+		.insns = {
+			/* If (write) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, write)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 1, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "ctx:write sysctl:write read ok",
+		.insns = {
+			/* If (write) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, write)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 1, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/domainname",
+		.open_flags = O_WRONLY,
+		.newval = "(none)", /* same as default, should fail anyway */
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "ctx:write sysctl:write read ok narrow",
+		.insns = {
+			/* u64 w = (u16)write & 1; */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+			BPF_LDX_MEM(BPF_H, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, write)),
+#else
+			BPF_LDX_MEM(BPF_H, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, write) + 2),
+#endif
+			BPF_ALU64_IMM(BPF_AND, BPF_REG_7, 1),
+			/* return 1 - w; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/domainname",
+		.open_flags = O_WRONLY,
+		.newval = "(none)", /* same as default, should fail anyway */
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "ctx:write sysctl:read write reject",
+		.insns = {
+			/* write = X */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sysctl, write)),
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = LOAD_REJECT,
+	},
+	{
+		.descr = "ctx:file_pos sysctl:read read ok",
+		.insns = {
+			/* If (file_pos == X) */
+			BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, file_pos)),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 3, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.seek = 3,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "ctx:file_pos sysctl:read read ok narrow",
+		.insns = {
+			/* If (file_pos == X) */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+			BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, file_pos)),
+#else
+			BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_1,
+				    offsetof(struct bpf_sysctl, file_pos) + 3),
+#endif
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 4, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.seek = 4,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "ctx:file_pos sysctl:read write ok",
+		.insns = {
+			/* file_pos = X */
+			BPF_MOV64_IMM(BPF_REG_0, 2),
+			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+				    offsetof(struct bpf_sysctl, file_pos)),
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.oldval = "nux\n",
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_name sysctl_value:base ok",
+		.insns = {
+			/* sysctl_get_name arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_name arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* sysctl_get_name arg4 (flags) */
+			BPF_MOV64_IMM(BPF_REG_4, BPF_F_SYSCTL_BASE_NAME),
+
+			/* sysctl_get_name(ctx, buf, buf_len, flags) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_name),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, sizeof("tcp_mem") - 1, 6),
+			/*     buf == "tcp_mem\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x7463705f6d656d00ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_name sysctl_value:base E2BIG truncated",
+		.insns = {
+			/* sysctl_get_name arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_name arg3 (buf_len) too small */
+			BPF_MOV64_IMM(BPF_REG_3, 7),
+
+			/* sysctl_get_name arg4 (flags) */
+			BPF_MOV64_IMM(BPF_REG_4, BPF_F_SYSCTL_BASE_NAME),
+
+			/* sysctl_get_name(ctx, buf, buf_len, flags) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_name),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -E2BIG, 6),
+
+			/*     buf[0:7] == "tcp_me\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x7463705f6d650000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_name sysctl:full ok",
+		.insns = {
+			/* sysctl_get_name arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -24),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 16),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_name arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 17),
+
+			/* sysctl_get_name arg4 (flags) */
+			BPF_MOV64_IMM(BPF_REG_4, 0),
+
+			/* sysctl_get_name(ctx, buf, buf_len, flags) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_name),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 16, 14),
+
+			/*     buf[0:8] == "net/ipv4" && */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x6e65742f69707634ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 10),
+
+			/*     buf[8:16] == "/tcp_mem" && */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x2f7463705f6d656dULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 8),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 6),
+
+			/*     buf[16:24] == "\0") */
+			BPF_LD_IMM64(BPF_REG_8, 0x0ULL),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 16),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_name sysctl:full E2BIG truncated",
+		.insns = {
+			/* sysctl_get_name arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -16),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 8),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_name arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 16),
+
+			/* sysctl_get_name arg4 (flags) */
+			BPF_MOV64_IMM(BPF_REG_4, 0),
+
+			/* sysctl_get_name(ctx, buf, buf_len, flags) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_name),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -E2BIG, 10),
+
+			/*     buf[0:8] == "net/ipv4" && */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x6e65742f69707634ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 6),
+
+			/*     buf[8:16] == "/tcp_me\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x2f7463705f6d6500ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 8),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_name sysctl:full E2BIG truncated small",
+		.insns = {
+			/* sysctl_get_name arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_name arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 7),
+
+			/* sysctl_get_name arg4 (flags) */
+			BPF_MOV64_IMM(BPF_REG_4, 0),
+
+			/* sysctl_get_name(ctx, buf, buf_len, flags) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_name),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -E2BIG, 6),
+
+			/*     buf[0:8] == "net/ip\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x6e65742f69700000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_current_value sysctl:read ok, gt",
+		.insns = {
+			/* sysctl_get_current_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_current_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* sysctl_get_current_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_current_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 6, 6),
+
+			/*     buf[0:6] == "Linux\n\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x4c696e75780a0000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_current_value sysctl:read ok, eq",
+		.insns = {
+			/* sysctl_get_current_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_B, BPF_REG_7, BPF_REG_0, 7),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_current_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 7),
+
+			/* sysctl_get_current_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_current_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 6, 6),
+
+			/*     buf[0:6] == "Linux\n\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x4c696e75780a0000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_current_value sysctl:read E2BIG truncated",
+		.insns = {
+			/* sysctl_get_current_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_H, BPF_REG_7, BPF_REG_0, 6),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_current_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 6),
+
+			/* sysctl_get_current_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_current_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -E2BIG, 6),
+
+			/*     buf[0:6] == "Linux\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x4c696e7578000000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "kernel/ostype",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_current_value sysctl:read EINVAL",
+		.insns = {
+			/* sysctl_get_current_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_current_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* sysctl_get_current_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_current_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 4),
+
+			/*     buf[0:8] is NUL-filled) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 0, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv6/conf/lo/stable_secret", /* -EIO */
+		.open_flags = O_RDONLY,
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "sysctl_get_current_value sysctl:write ok",
+		.fixup_value_insn = 6,
+		.insns = {
+			/* sysctl_get_current_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_current_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* sysctl_get_current_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_current_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 4, 6),
+
+			/*     buf[0:4] == expected) */
+			BPF_LD_IMM64(BPF_REG_8, FIXUP_SYSCTL_VALUE),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_WRONLY,
+		.newval = "600", /* same as default, should fail anyway */
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "sysctl_get_new_value sysctl:read EINVAL",
+		.insns = {
+			/* sysctl_get_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* sysctl_get_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_new_value),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_get_new_value sysctl:write ok",
+		.insns = {
+			/* sysctl_get_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 4),
+
+			/* sysctl_get_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_new_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 3, 4),
+
+			/*     buf[0:4] == "606\0") */
+			BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9,
+				    bpf_ntohl(0x36303600), 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_WRONLY,
+		.newval = "606",
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "sysctl_get_new_value sysctl:write ok long",
+		.insns = {
+			/* sysctl_get_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -24),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 24),
+
+			/* sysctl_get_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_new_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 23, 14),
+
+			/*     buf[0:8] == "3000000 " && */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x3330303030303020ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 10),
+
+			/*     buf[8:16] == "4000000 " && */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x3430303030303020ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 8),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 6),
+
+			/*     buf[16:24] == "6000000\0") */
+			BPF_LD_IMM64(BPF_REG_8,
+				     bpf_be64_to_cpu(0x3630303030303000ULL)),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 16),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_WRONLY,
+		.newval = "3000000 4000000 6000000",
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "sysctl_get_new_value sysctl:write E2BIG",
+		.insns = {
+			/* sysctl_get_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_STX_MEM(BPF_B, BPF_REG_7, BPF_REG_0, 3),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_get_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 3),
+
+			/* sysctl_get_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_get_new_value),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -E2BIG, 4),
+
+			/*     buf[0:3] == "60\0") */
+			BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9,
+				    bpf_ntohl(0x36300000), 2),
+
+			/* return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_JMP_A(1),
+
+			/* else return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_WRONLY,
+		.newval = "606",
+		.result = OP_EPERM,
+	},
+	{
+		.descr = "sysctl_set_new_value sysctl:read EINVAL",
+		.insns = {
+			/* sysctl_set_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x36303000)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_set_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 3),
+
+			/* sysctl_set_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_set_new_value),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		.descr = "sysctl_set_new_value sysctl:write ok",
+		.fixup_value_insn = 2,
+		.insns = {
+			/* sysctl_set_new_value arg2 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_LD_IMM64(BPF_REG_0, FIXUP_SYSCTL_VALUE),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_2, BPF_REG_7),
+
+			/* sysctl_set_new_value arg3 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_3, 3),
+
+			/* sysctl_set_new_value(ctx, buf, buf_len) */
+			BPF_EMIT_CALL(BPF_FUNC_sysctl_set_new_value),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_WRONLY,
+		.newval = "606",
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul one number string",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x36303000)),
+			BPF_STX_MEM(BPF_W, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 3, 4),
+			/*     res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 600, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul multi number string",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			/* "600 602\0" */
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3630302036303200ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 8),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 3, 18),
+			/*     res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 600, 16),
+
+			/*     arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/*     arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 8),
+			BPF_ALU64_REG(BPF_SUB, BPF_REG_2, BPF_REG_0),
+
+			/*     arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/*     arg4 (res) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -16),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/*     if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 4, 4),
+			/*         res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 602, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul buf_len = 0, reject",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x36303000)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 0),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = LOAD_REJECT,
+	},
+	{
+		"bpf_strtoul supported base, ok",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x30373700)),
+			BPF_STX_MEM(BPF_W, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 8),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 3, 4),
+			/*     res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 63, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul unsupported base, EINVAL",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x36303000)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 3),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul buf with spaces only, EINVAL",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x0d0c0a09)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtoul negative number, EINVAL",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			/* " -6\0" */
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x0a2d3600)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtoul),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -EINVAL, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtol negative number, ok",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			/* " -6\0" */
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x0a2d3600)),
+			BPF_STX_MEM(BPF_W, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 10),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtol),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 3, 4),
+			/*     res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, -6, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtol hex number, ok",
+		.insns = {
+			/* arg1 (buf) */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			/* "0xfe" */
+			BPF_MOV64_IMM(BPF_REG_0,
+				      bpf_ntohl(0x30786665)),
+			BPF_STX_MEM(BPF_W, BPF_REG_7, BPF_REG_0, 0),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 4),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtol),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 4, 4),
+			/*     res == expected) */
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_9, 254, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtol max long",
+		.insns = {
+			/* arg1 (buf) 9223372036854775807 */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -24),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3932323333373230ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3336383534373735ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 8),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3830370000000000ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 16),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 19),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtol),
+
+			/* if (ret == expected && */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 19, 6),
+			/*     res == expected) */
+			BPF_LD_IMM64(BPF_REG_8, 0x7fffffffffffffffULL),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_7, 0),
+			BPF_JMP_REG(BPF_JNE, BPF_REG_8, BPF_REG_9, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"bpf_strtol overflow, ERANGE",
+		.insns = {
+			/* arg1 (buf) 9223372036854775808 */
+			BPF_MOV64_REG(BPF_REG_7, BPF_REG_10),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -24),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3932323333373230ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3336383534373735ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 8),
+			BPF_LD_IMM64(BPF_REG_0,
+				     bpf_be64_to_cpu(0x3830380000000000ULL)),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 16),
+
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+
+			/* arg2 (buf_len) */
+			BPF_MOV64_IMM(BPF_REG_2, 19),
+
+			/* arg3 (flags) */
+			BPF_MOV64_IMM(BPF_REG_3, 0),
+
+			/* arg4 (res) */
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -8),
+			BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+			BPF_MOV64_REG(BPF_REG_4, BPF_REG_7),
+
+			BPF_EMIT_CALL(BPF_FUNC_strtol),
+
+			/* if (ret == expected) */
+			BPF_JMP_IMM(BPF_JNE, BPF_REG_0, -ERANGE, 2),
+
+			/* return ALLOW; */
+			BPF_MOV64_IMM(BPF_REG_0, 1),
+			BPF_JMP_A(1),
+
+			/* else return DENY; */
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+	{
+		"C prog: deny all writes",
+		.prog_file = "./test_sysctl_prog.bpf.o",
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_WRONLY,
+		.newval = "123 456 789",
+		.result = OP_EPERM,
+	},
+	{
+		"C prog: deny access by name",
+		.prog_file = "./test_sysctl_prog.bpf.o",
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/route/mtu_expires",
+		.open_flags = O_RDONLY,
+		.result = OP_EPERM,
+	},
+	{
+		"C prog: read tcp_mem",
+		.prog_file = "./test_sysctl_prog.bpf.o",
+		.attach_type = BPF_CGROUP_SYSCTL,
+		.sysctl = "net/ipv4/tcp_mem",
+		.open_flags = O_RDONLY,
+		.result = SUCCESS,
+	},
+};
+
+static size_t probe_prog_length(const struct bpf_insn *fp)
+{
+	size_t len;
+
+	for (len = MAX_INSNS - 1; len > 0; --len)
+		if (fp[len].code != 0 || fp[len].imm != 0)
+			break;
+	return len + 1;
+}
+
+static int fixup_sysctl_value(const char *buf, size_t buf_len,
+			      struct bpf_insn *prog, size_t insn_num)
+{
+	union {
+		uint8_t raw[sizeof(uint64_t)];
+		uint64_t num;
+	} value = {};
+
+	if (buf_len > sizeof(value)) {
+		log_err("Value is too big (%zd) to use in fixup", buf_len);
+		return -1;
+	}
+	if (prog[insn_num].code != (BPF_LD | BPF_DW | BPF_IMM)) {
+		log_err("Can fixup only BPF_LD_IMM64 insns");
+		return -1;
+	}
+
+	memcpy(value.raw, buf, buf_len);
+	prog[insn_num].imm = (uint32_t)value.num;
+	prog[insn_num + 1].imm = (uint32_t)(value.num >> 32);
+
+	return 0;
+}
+
+static int load_sysctl_prog_insns(struct sysctl_test *test,
+				  const char *sysctl_path)
+{
+	struct bpf_insn *prog = test->insns;
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	int ret, insn_cnt;
+
+	insn_cnt = probe_prog_length(prog);
+
+	if (test->fixup_value_insn) {
+		char buf[128];
+		ssize_t len;
+		int fd;
+
+		fd = open(sysctl_path, O_RDONLY | O_CLOEXEC);
+		if (fd < 0) {
+			log_err("open(%s) failed", sysctl_path);
+			return -1;
+		}
+		len = read(fd, buf, sizeof(buf));
+		if (len == -1) {
+			log_err("read(%s) failed", sysctl_path);
+			close(fd);
+			return -1;
+		}
+		close(fd);
+		if (fixup_sysctl_value(buf, len, prog, test->fixup_value_insn))
+			return -1;
+	}
+
+	opts.log_buf = bpf_log_buf;
+	opts.log_size = BPF_LOG_BUF_SIZE;
+
+	ret = bpf_prog_load(BPF_PROG_TYPE_CGROUP_SYSCTL, NULL, "GPL", prog, insn_cnt, &opts);
+	if (ret < 0 && test->result != LOAD_REJECT) {
+		log_err(">>> Loading program error.\n"
+			">>> Verifier output:\n%s\n-------\n", bpf_log_buf);
+	}
+
+	return ret;
+}
+
+static int load_sysctl_prog_file(struct sysctl_test *test)
+{
+	struct bpf_object *obj;
+	int prog_fd;
+
+	if (bpf_prog_test_load(test->prog_file, BPF_PROG_TYPE_CGROUP_SYSCTL, &obj, &prog_fd)) {
+		if (test->result != LOAD_REJECT)
+			log_err(">>> Loading program (%s) error.\n",
+				test->prog_file);
+		return -1;
+	}
+
+	return prog_fd;
+}
+
+static int load_sysctl_prog(struct sysctl_test *test, const char *sysctl_path)
+{
+		return test->prog_file
+			? load_sysctl_prog_file(test)
+			: load_sysctl_prog_insns(test, sysctl_path);
+}
+
+static int access_sysctl(const char *sysctl_path,
+			 const struct sysctl_test *test)
+{
+	int err = 0;
+	int fd;
+
+	fd = open(sysctl_path, test->open_flags | O_CLOEXEC);
+	if (fd < 0)
+		return fd;
+
+	if (test->seek && lseek(fd, test->seek, SEEK_SET) == -1) {
+		log_err("lseek(%d) failed", test->seek);
+		goto err;
+	}
+
+	if (test->open_flags == O_RDONLY) {
+		char buf[128];
+
+		if (read(fd, buf, sizeof(buf)) == -1)
+			goto err;
+		if (test->oldval &&
+		    strncmp(buf, test->oldval, strlen(test->oldval))) {
+			log_err("Read value %s != %s", buf, test->oldval);
+			goto err;
+		}
+	} else if (test->open_flags == O_WRONLY) {
+		if (!test->newval) {
+			log_err("New value for sysctl is not set");
+			goto err;
+		}
+		if (write(fd, test->newval, strlen(test->newval)) == -1)
+			goto err;
+	} else {
+		log_err("Unexpected sysctl access: neither read nor write");
+		goto err;
+	}
+
+	goto out;
+err:
+	err = -1;
+out:
+	close(fd);
+	return err;
+}
+
+static int run_test_case(int cgfd, struct sysctl_test *test)
+{
+	enum bpf_attach_type atype = test->attach_type;
+	char sysctl_path[128];
+	int progfd = -1;
+	int err = 0;
+
+	printf("Test case: %s .. ", test->descr);
+
+	snprintf(sysctl_path, sizeof(sysctl_path), "/proc/sys/%s",
+		 test->sysctl);
+
+	progfd = load_sysctl_prog(test, sysctl_path);
+	if (progfd < 0) {
+		if (test->result == LOAD_REJECT)
+			goto out;
+		else
+			goto err;
+	}
+
+	if (bpf_prog_attach(progfd, cgfd, atype, BPF_F_ALLOW_OVERRIDE) < 0) {
+		if (test->result == ATTACH_REJECT)
+			goto out;
+		else
+			goto err;
+	}
+
+	errno = 0;
+	if (access_sysctl(sysctl_path, test) == -1) {
+		if (test->result == OP_EPERM && errno == EPERM)
+			goto out;
+		else
+			goto err;
+	}
+
+	if (test->result != SUCCESS) {
+		log_err("Unexpected success");
+		goto err;
+	}
+
+	goto out;
+err:
+	err = -1;
+out:
+	/* Detaching w/o checking return code: best effort attempt. */
+	if (progfd != -1)
+		bpf_prog_detach(cgfd, atype);
+	close(progfd);
+	printf("[%s]\n", err ? "FAIL" : "PASS");
+	return err;
+}
+
+static int run_tests(int cgfd)
+{
+	int passes = 0;
+	int fails = 0;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tests); ++i) {
+		if (run_test_case(cgfd, &tests[i]))
+			++fails;
+		else
+			++passes;
+	}
+	printf("Summary: %d PASSED, %d FAILED\n", passes, fails);
+	return fails ? -1 : 0;
+}
+
+void test_sysctl(void)
+{
+	int cgfd;
+
+	cgfd = cgroup_setup_and_join(CG_PATH);
+	if (!ASSERT_OK_FD(cgfd < 0, "create_cgroup"))
+		goto out;
+
+	if (!ASSERT_OK(run_tests(cgfd), "run_tests"))
+		goto out;
+
+out:
+	close(cgfd);
+	cleanup_cgroup_environment();
+	return;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_task_local_data.c b/tools/testing/selftests/bpf/prog_tests/test_task_local_data.c
new file mode 100644
index 000000000000..9fd6306b455c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_task_local_data.c
@@ -0,0 +1,297 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <pthread.h>
+#include <bpf/btf.h>
+#include <test_progs.h>
+
+#define TLD_FREE_DATA_ON_THREAD_EXIT
+#define TLD_DYN_DATA_SIZE 4096
+#include "task_local_data.h"
+
+struct test_tld_struct {
+	__u64 a;
+	__u64 b;
+	__u64 c;
+	__u64 d;
+};
+
+#include "test_task_local_data.skel.h"
+
+TLD_DEFINE_KEY(value0_key, "value0", sizeof(int));
+
+/*
+ * Reset task local data between subtests by clearing metadata other
+ * than the statically defined value0. This is safe as subtests run
+ * sequentially. Users of task local data library should not touch
+ * library internal.
+ */
+static void reset_tld(void)
+{
+	if (TLD_READ_ONCE(tld_meta_p)) {
+		/* Remove TLDs created by tld_create_key() */
+		tld_meta_p->cnt = 1;
+		tld_meta_p->size = TLD_DYN_DATA_SIZE;
+		memset(&tld_meta_p->metadata[1], 0,
+		       (TLD_MAX_DATA_CNT - 1) * sizeof(struct tld_metadata));
+	}
+}
+
+/* Serialize access to bpf program's global variables */
+static pthread_mutex_t global_mutex;
+
+static tld_key_t *tld_keys;
+
+#define TEST_BASIC_THREAD_NUM 32
+
+void *test_task_local_data_basic_thread(void *arg)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	struct test_task_local_data *skel = (struct test_task_local_data *)arg;
+	int fd, err, tid, *value0, *value1;
+	struct test_tld_struct *value2;
+
+	fd = bpf_map__fd(skel->maps.tld_data_map);
+
+	value0 = tld_get_data(fd, value0_key);
+	if (!ASSERT_OK_PTR(value0, "tld_get_data"))
+		goto out;
+
+	value1 = tld_get_data(fd, tld_keys[1]);
+	if (!ASSERT_OK_PTR(value1, "tld_get_data"))
+		goto out;
+
+	value2 = tld_get_data(fd, tld_keys[2]);
+	if (!ASSERT_OK_PTR(value2, "tld_get_data"))
+		goto out;
+
+	tid = sys_gettid();
+
+	*value0 = tid + 0;
+	*value1 = tid + 1;
+	value2->a = tid + 2;
+	value2->b = tid + 3;
+	value2->c = tid + 4;
+	value2->d = tid + 5;
+
+	pthread_mutex_lock(&global_mutex);
+	/* Run task_main that read task local data and save to global variables */
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.task_main), &opts);
+	ASSERT_OK(err, "run task_main");
+	ASSERT_OK(opts.retval, "task_main retval");
+
+	ASSERT_EQ(skel->bss->test_value0, tid + 0, "tld_get_data value0");
+	ASSERT_EQ(skel->bss->test_value1, tid + 1, "tld_get_data value1");
+	ASSERT_EQ(skel->bss->test_value2.a, tid + 2, "tld_get_data value2.a");
+	ASSERT_EQ(skel->bss->test_value2.b, tid + 3, "tld_get_data value2.b");
+	ASSERT_EQ(skel->bss->test_value2.c, tid + 4, "tld_get_data value2.c");
+	ASSERT_EQ(skel->bss->test_value2.d, tid + 5, "tld_get_data value2.d");
+	pthread_mutex_unlock(&global_mutex);
+
+	/* Make sure valueX are indeed local to threads */
+	ASSERT_EQ(*value0, tid + 0, "value0");
+	ASSERT_EQ(*value1, tid + 1, "value1");
+	ASSERT_EQ(value2->a, tid + 2, "value2.a");
+	ASSERT_EQ(value2->b, tid + 3, "value2.b");
+	ASSERT_EQ(value2->c, tid + 4, "value2.c");
+	ASSERT_EQ(value2->d, tid + 5, "value2.d");
+
+	*value0 = tid + 5;
+	*value1 = tid + 4;
+	value2->a = tid + 3;
+	value2->b = tid + 2;
+	value2->c = tid + 1;
+	value2->d = tid + 0;
+
+	/* Run task_main again */
+	pthread_mutex_lock(&global_mutex);
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.task_main), &opts);
+	ASSERT_OK(err, "run task_main");
+	ASSERT_OK(opts.retval, "task_main retval");
+
+	ASSERT_EQ(skel->bss->test_value0, tid + 5, "tld_get_data value0");
+	ASSERT_EQ(skel->bss->test_value1, tid + 4, "tld_get_data value1");
+	ASSERT_EQ(skel->bss->test_value2.a, tid + 3, "tld_get_data value2.a");
+	ASSERT_EQ(skel->bss->test_value2.b, tid + 2, "tld_get_data value2.b");
+	ASSERT_EQ(skel->bss->test_value2.c, tid + 1, "tld_get_data value2.c");
+	ASSERT_EQ(skel->bss->test_value2.d, tid + 0, "tld_get_data value2.d");
+	pthread_mutex_unlock(&global_mutex);
+
+out:
+	pthread_exit(NULL);
+}
+
+static void test_task_local_data_basic(void)
+{
+	struct test_task_local_data *skel;
+	pthread_t thread[TEST_BASIC_THREAD_NUM];
+	char dummy_key_name[TLD_NAME_LEN];
+	tld_key_t key;
+	int i, err;
+
+	reset_tld();
+
+	ASSERT_OK(pthread_mutex_init(&global_mutex, NULL), "pthread_mutex_init");
+
+	skel = test_task_local_data__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	tld_keys = calloc(TLD_MAX_DATA_CNT, sizeof(tld_key_t));
+	if (!ASSERT_OK_PTR(tld_keys, "calloc tld_keys"))
+		goto out;
+
+	ASSERT_FALSE(tld_key_is_err(value0_key), "TLD_DEFINE_KEY");
+	tld_keys[1] = tld_create_key("value1", sizeof(int));
+	ASSERT_FALSE(tld_key_is_err(tld_keys[1]), "tld_create_key");
+	tld_keys[2] = tld_create_key("value2", sizeof(struct test_tld_struct));
+	ASSERT_FALSE(tld_key_is_err(tld_keys[2]), "tld_create_key");
+
+	/*
+	 * Shouldn't be able to store data exceed a page. Create a TLD just big
+	 * enough to exceed a page. TLDs already created are int value0, int
+	 * value1, and struct test_tld_struct value2.
+	 */
+	key = tld_create_key("value_not_exist",
+			     TLD_PAGE_SIZE - 2 * sizeof(int) - sizeof(struct test_tld_struct) + 1);
+	ASSERT_EQ(tld_key_err_or_zero(key), -E2BIG, "tld_create_key");
+
+	key = tld_create_key("value2", sizeof(struct test_tld_struct));
+	ASSERT_EQ(tld_key_err_or_zero(key), -EEXIST, "tld_create_key");
+
+	/* Shouldn't be able to create the (TLD_MAX_DATA_CNT+1)-th TLD */
+	for (i = 3; i < TLD_MAX_DATA_CNT; i++) {
+		snprintf(dummy_key_name, TLD_NAME_LEN, "dummy_value%d", i);
+		tld_keys[i] = tld_create_key(dummy_key_name, sizeof(int));
+		ASSERT_FALSE(tld_key_is_err(tld_keys[i]), "tld_create_key");
+	}
+	key = tld_create_key("value_not_exist", sizeof(struct test_tld_struct));
+	ASSERT_EQ(tld_key_err_or_zero(key), -ENOSPC, "tld_create_key");
+
+	/* Access TLDs from multiple threads and check if they are thread-specific */
+	for (i = 0; i < TEST_BASIC_THREAD_NUM; i++) {
+		err = pthread_create(&thread[i], NULL, test_task_local_data_basic_thread, skel);
+		if (!ASSERT_OK(err, "pthread_create"))
+			goto out;
+	}
+
+out:
+	for (i = 0; i < TEST_BASIC_THREAD_NUM; i++)
+		pthread_join(thread[i], NULL);
+
+	if (tld_keys) {
+		free(tld_keys);
+		tld_keys = NULL;
+	}
+	tld_free();
+	test_task_local_data__destroy(skel);
+}
+
+#define TEST_RACE_THREAD_NUM (TLD_MAX_DATA_CNT - 3)
+
+void *test_task_local_data_race_thread(void *arg)
+{
+	int err = 0, id = (intptr_t)arg;
+	char key_name[32];
+	tld_key_t key;
+
+	key = tld_create_key("value_not_exist", TLD_PAGE_SIZE + 1);
+	if (tld_key_err_or_zero(key) != -E2BIG) {
+		err = 1;
+		goto out;
+	}
+
+	/* Only one thread will succeed in creating value1 */
+	key = tld_create_key("value1", sizeof(int));
+	if (!tld_key_is_err(key))
+		tld_keys[1] = key;
+
+	/* Only one thread will succeed in creating value2 */
+	key = tld_create_key("value2", sizeof(struct test_tld_struct));
+	if (!tld_key_is_err(key))
+		tld_keys[2] = key;
+
+	snprintf(key_name, 32, "thread_%d", id);
+	tld_keys[id] = tld_create_key(key_name, sizeof(int));
+	if (tld_key_is_err(tld_keys[id]))
+		err = 2;
+out:
+	return (void *)(intptr_t)err;
+}
+
+static void test_task_local_data_race(void)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+	pthread_t thread[TEST_RACE_THREAD_NUM];
+	struct test_task_local_data *skel;
+	int fd, i, j, err, *data;
+	void *ret = NULL;
+
+	skel = test_task_local_data__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	tld_keys = calloc(TLD_MAX_DATA_CNT, sizeof(tld_key_t));
+	if (!ASSERT_OK_PTR(tld_keys, "calloc tld_keys"))
+		goto out;
+
+	fd = bpf_map__fd(skel->maps.tld_data_map);
+
+	ASSERT_FALSE(tld_key_is_err(value0_key), "TLD_DEFINE_KEY");
+	tld_keys[0] = value0_key;
+
+	for (j = 0; j < 100; j++) {
+		reset_tld();
+
+		for (i = 0; i < TEST_RACE_THREAD_NUM; i++) {
+			/*
+			 * Try to make tld_create_key() race with each other. Call
+			 * tld_create_key(), both valid and invalid, from different threads.
+			 */
+			err = pthread_create(&thread[i], NULL, test_task_local_data_race_thread,
+					     (void *)(intptr_t)(i + 3));
+			if (CHECK_FAIL(err))
+				break;
+		}
+
+		/* Wait for all tld_create_key() to return */
+		for (i = 0; i < TEST_RACE_THREAD_NUM; i++) {
+			pthread_join(thread[i], &ret);
+			if (CHECK_FAIL(ret))
+				break;
+		}
+
+		/* Write a unique number to each TLD */
+		for (i = 0; i < TLD_MAX_DATA_CNT; i++) {
+			data = tld_get_data(fd, tld_keys[i]);
+			if (CHECK_FAIL(!data))
+				break;
+			*data = i;
+		}
+
+		/* Read TLDs and check the value to see if any address collides with another */
+		for (i = 0; i < TLD_MAX_DATA_CNT; i++) {
+			data = tld_get_data(fd, tld_keys[i]);
+			if (CHECK_FAIL(*data != i))
+				break;
+		}
+
+		/* Run task_main to make sure no invalid TLDs are added */
+		err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.task_main), &opts);
+		ASSERT_OK(err, "run task_main");
+		ASSERT_OK(opts.retval, "task_main retval");
+	}
+out:
+	if (tld_keys) {
+		free(tld_keys);
+		tld_keys = NULL;
+	}
+	tld_free();
+	test_task_local_data__destroy(skel);
+}
+
+void test_task_local_data(void)
+{
+	if (test__start_subtest("task_local_data_basic"))
+		test_task_local_data_basic();
+	if (test__start_subtest("task_local_data_race"))
+		test_task_local_data_race();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_task_work.c b/tools/testing/selftests/bpf/prog_tests/test_task_work.c
new file mode 100644
index 000000000000..774b31a5f6ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_task_work.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <string.h>
+#include <stdio.h>
+#include "task_work.skel.h"
+#include "task_work_fail.skel.h"
+#include <linux/bpf.h>
+#include <linux/perf_event.h>
+#include <sys/syscall.h>
+#include <time.h>
+
+static int perf_event_open(__u32 type, __u64 config, int pid)
+{
+	struct perf_event_attr attr = {
+		.type = type,
+		.config = config,
+		.size = sizeof(struct perf_event_attr),
+		.sample_period = 100000,
+	};
+
+	return syscall(__NR_perf_event_open, &attr, pid, -1, -1, 0);
+}
+
+struct elem {
+	char data[128];
+	struct bpf_task_work tw;
+};
+
+static int verify_map(struct bpf_map *map, const char *expected_data)
+{
+	int err;
+	struct elem value;
+	int processed_values = 0;
+	int k, sz;
+
+	sz = bpf_map__max_entries(map);
+	for (k = 0; k < sz; ++k) {
+		err = bpf_map__lookup_elem(map, &k, sizeof(int), &value, sizeof(struct elem), 0);
+		if (err)
+			continue;
+		if (!ASSERT_EQ(strcmp(expected_data, value.data), 0, "map data")) {
+			fprintf(stderr, "expected '%s', found '%s' in %s map", expected_data,
+				value.data, bpf_map__name(map));
+			return 2;
+		}
+		processed_values++;
+	}
+
+	return processed_values == 0;
+}
+
+static void task_work_run(const char *prog_name, const char *map_name)
+{
+	struct task_work *skel;
+	struct bpf_program *prog;
+	struct bpf_map *map;
+	struct bpf_link *link = NULL;
+	int err, pe_fd = -1, pid, status, pipefd[2];
+	char user_string[] = "hello world";
+
+	if (!ASSERT_NEQ(pipe(pipefd), -1, "pipe"))
+		return;
+
+	pid = fork();
+	if (pid == 0) {
+		__u64 num = 1;
+		int i;
+		char buf;
+
+		close(pipefd[1]);
+		read(pipefd[0], &buf, sizeof(buf));
+		close(pipefd[0]);
+
+		for (i = 0; i < 10000; ++i)
+			num *= time(0) % 7;
+		(void)num;
+		exit(0);
+	}
+	if (!ASSERT_GT(pid, 0, "fork() failed")) {
+		close(pipefd[0]);
+		close(pipefd[1]);
+		return;
+	}
+
+	skel = task_work__open();
+	if (!ASSERT_OK_PTR(skel, "task_work__open"))
+		return;
+
+	bpf_object__for_each_program(prog, skel->obj) {
+		bpf_program__set_autoload(prog, false);
+	}
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "prog_name"))
+		goto cleanup;
+	bpf_program__set_autoload(prog, true);
+	skel->bss->user_ptr = (char *)user_string;
+
+	err = task_work__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	pe_fd = perf_event_open(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, pid);
+	if (pe_fd == -1 && (errno == ENOENT || errno == EOPNOTSUPP)) {
+		printf("%s:SKIP:no PERF_COUNT_HW_CPU_CYCLES\n", __func__);
+		test__skip();
+		goto cleanup;
+	}
+	if (!ASSERT_NEQ(pe_fd, -1, "pe_fd")) {
+		fprintf(stderr, "perf_event_open errno: %d, pid: %d\n", errno, pid);
+		goto cleanup;
+	}
+
+	link = bpf_program__attach_perf_event(prog, pe_fd);
+	if (!ASSERT_OK_PTR(link, "attach_perf_event"))
+		goto cleanup;
+
+	/* perf event fd ownership is passed to bpf_link */
+	pe_fd = -1;
+	close(pipefd[0]);
+	write(pipefd[1], user_string, 1);
+	close(pipefd[1]);
+	/* Wait to collect some samples */
+	waitpid(pid, &status, 0);
+	pid = 0;
+	map = bpf_object__find_map_by_name(skel->obj, map_name);
+	if (!ASSERT_OK_PTR(map, "find map_name"))
+		goto cleanup;
+	if (!ASSERT_OK(verify_map(map, user_string), "verify map"))
+		goto cleanup;
+cleanup:
+	if (pe_fd >= 0)
+		close(pe_fd);
+	bpf_link__destroy(link);
+	task_work__destroy(skel);
+	if (pid > 0) {
+		close(pipefd[0]);
+		write(pipefd[1], user_string, 1);
+		close(pipefd[1]);
+		waitpid(pid, &status, 0);
+	}
+}
+
+void test_task_work(void)
+{
+	if (test__start_subtest("test_task_work_hash_map"))
+		task_work_run("oncpu_hash_map", "hmap");
+
+	if (test__start_subtest("test_task_work_array_map"))
+		task_work_run("oncpu_array_map", "arrmap");
+
+	if (test__start_subtest("test_task_work_lru_map"))
+		task_work_run("oncpu_lru_map", "lrumap");
+
+	RUN_TESTS(task_work_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tc_edt.c b/tools/testing/selftests/bpf/prog_tests/test_tc_edt.c
new file mode 100644
index 000000000000..462512fb191f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_tc_edt.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * BPF-based flow shaping
+ *
+ * The test brings up two veth in two isolated namespaces, attach some flow
+ * shaping program onto it, and ensures that a manual speedtest maximum
+ * value matches the rate set in the BPF shapers.
+ */
+
+#include <asm-generic/socket.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <math.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <bpf/libbpf.h>
+#include <pthread.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "test_tc_edt.skel.h"
+
+#define SERVER_NS "tc-edt-server-ns"
+#define CLIENT_NS "tc-edt-client-ns"
+#define IP4_ADDR_VETH1 "192.168.1.1"
+#define IP4_ADDR_VETH2 "192.168.1.2"
+#define IP4_ADDR_VETH2_HEX 0xC0A80102
+
+#define TIMEOUT_MS		2000
+#define TEST_PORT		9000
+#define TARGET_RATE_MBPS	5.0
+#define TX_BYTES_COUNT		(1 * 1000 * 1000)
+#define RATE_ERROR_PERCENT	2.0
+
+struct connection {
+	int server_listen_fd;
+	int server_conn_fd;
+	int client_conn_fd;
+};
+
+static int setup(struct test_tc_edt *skel)
+{
+	struct nstoken *nstoken_client, *nstoken_server;
+	int ret;
+
+	if (!ASSERT_OK(make_netns(CLIENT_NS), "create client ns"))
+		goto fail;
+	if (!ASSERT_OK(make_netns(SERVER_NS), "create server ns"))
+		goto fail_delete_client_ns;
+
+	nstoken_client = open_netns(CLIENT_NS);
+	if (!ASSERT_OK_PTR(nstoken_client, "open client ns"))
+		goto fail_delete_server_ns;
+	SYS(fail_close_client_ns, "ip link add veth1 type veth peer name %s",
+	    "veth2 netns " SERVER_NS);
+	SYS(fail_close_client_ns, "ip -4 addr add " IP4_ADDR_VETH1 "/24 dev veth1");
+	SYS(fail_close_client_ns, "ip link set veth1 up");
+
+	nstoken_server = open_netns(SERVER_NS);
+	if (!ASSERT_OK_PTR(nstoken_server, "enter server ns"))
+		goto fail_close_client_ns;
+	SYS(fail_close_server_ns, "ip -4 addr add " IP4_ADDR_VETH2 "/24 dev veth2");
+	SYS(fail_close_server_ns, "ip link set veth2 up");
+	SYS(fail_close_server_ns, "tc qdisc add dev veth2 root fq");
+	ret = tc_prog_attach("veth2", -1, bpf_program__fd(skel->progs.tc_prog));
+	if (!ASSERT_OK(ret, "attach bpf prog"))
+		goto fail_close_server_ns;
+	skel->bss->target_rate = TARGET_RATE_MBPS * 1000 * 1000;
+	close_netns(nstoken_server);
+	close_netns(nstoken_client);
+
+	return 0;
+
+fail_close_server_ns:
+	close_netns(nstoken_server);
+fail_close_client_ns:
+	close_netns(nstoken_client);
+fail_delete_server_ns:
+	remove_netns(SERVER_NS);
+fail_delete_client_ns:
+	remove_netns(CLIENT_NS);
+fail:
+	return -1;
+}
+
+static void cleanup(void)
+{
+	remove_netns(CLIENT_NS);
+	remove_netns(SERVER_NS);
+}
+
+static void run_test(void)
+{
+	int server_fd, client_fd, err;
+	double rate_mbps, rate_error;
+	struct nstoken *nstoken;
+	__u64 ts_start, ts_end;
+
+	nstoken = open_netns(SERVER_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open server ns"))
+		return;
+	server_fd = start_server(AF_INET, SOCK_STREAM, IP4_ADDR_VETH2,
+			TEST_PORT, TIMEOUT_MS);
+	if (!ASSERT_OK_FD(server_fd, "start server"))
+		return;
+
+	close_netns(nstoken);
+	nstoken = open_netns(CLIENT_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open client ns"))
+		return;
+	client_fd = connect_to_fd(server_fd, 0);
+	if (!ASSERT_OK_FD(client_fd, "connect client"))
+		return;
+
+	ts_start = get_time_ns();
+	err = send_recv_data(server_fd, client_fd, TX_BYTES_COUNT);
+	ts_end = get_time_ns();
+	close_netns(nstoken);
+	ASSERT_OK(err, "send_recv_data");
+
+	rate_mbps = TX_BYTES_COUNT / ((ts_end - ts_start) / 1000.0);
+	rate_error =
+		fabs((rate_mbps - TARGET_RATE_MBPS) * 100.0 / TARGET_RATE_MBPS);
+
+	ASSERT_LE(rate_error, RATE_ERROR_PERCENT,
+		  "rate error is lower than threshold");
+}
+
+void test_tc_edt(void)
+{
+	struct test_tc_edt *skel;
+
+	skel = test_tc_edt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open and load"))
+		return;
+
+	if (!ASSERT_OK(setup(skel), "global setup"))
+		return;
+
+	run_test();
+
+	cleanup();
+	test_tc_edt__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c
new file mode 100644
index 000000000000..0fe0a8f62486
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_tc_tunnel.c
@@ -0,0 +1,714 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * End-to-end eBPF tunnel test suite
+ *   The file tests BPF network tunnels implementation. For each tunnel
+ *   type, the test validates that:
+ *   - basic communication can first be established between the two veths
+ *   - when adding a BPF-based encapsulation on client egress, it now fails
+ *   to communicate with the server
+ *   - when adding a kernel-based decapsulation on server ingress, client
+ *   can now connect
+ *   - when replacing the kernel-based decapsulation with a BPF-based one,
+ *   the client can still connect
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+#include <bpf/libbpf.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "test_tc_tunnel.skel.h"
+
+#define SERVER_NS	"tc-tunnel-server-ns"
+#define CLIENT_NS	"tc-tunnel-client-ns"
+#define MAC_ADDR_VETH1	"00:11:22:33:44:55"
+#define IP4_ADDR_VETH1	"192.168.1.1"
+#define IP6_ADDR_VETH1	"fd::1"
+#define MAC_ADDR_VETH2	"66:77:88:99:AA:BB"
+#define IP4_ADDR_VETH2	"192.168.1.2"
+#define IP6_ADDR_VETH2	"fd::2"
+
+#define TEST_NAME_MAX_LEN	64
+#define PROG_NAME_MAX_LEN	64
+#define TUNNEL_ARGS_MAX_LEN	128
+#define BUFFER_LEN		2000
+#define DEFAULT_TEST_DATA_SIZE	100
+#define GSO_TEST_DATA_SIZE	BUFFER_LEN
+
+#define TIMEOUT_MS			1000
+#define TEST_PORT			8000
+#define UDP_PORT			5555
+#define MPLS_UDP_PORT			6635
+#define FOU_MPLS_PROTO			137
+#define VXLAN_ID			1
+#define VXLAN_PORT			8472
+#define MPLS_TABLE_ENTRIES_COUNT	65536
+
+static char tx_buffer[BUFFER_LEN], rx_buffer[BUFFER_LEN];
+
+struct subtest_cfg {
+	char *ebpf_tun_type;
+	char *iproute_tun_type;
+	char *mac_tun_type;
+	int ipproto;
+	void (*extra_decap_mod_args_cb)(struct subtest_cfg *cfg, char *dst);
+	bool tunnel_need_veth_mac;
+	bool configure_fou_rx_port;
+	char *tmode;
+	bool expect_kern_decap_failure;
+	bool configure_mpls;
+	bool test_gso;
+	char *tunnel_client_addr;
+	char *tunnel_server_addr;
+	char name[TEST_NAME_MAX_LEN];
+	char *server_addr;
+	int client_egress_prog_fd;
+	int server_ingress_prog_fd;
+	char extra_decap_mod_args[TUNNEL_ARGS_MAX_LEN];
+	int server_fd;
+};
+
+struct connection {
+	int client_fd;
+	int server_fd;
+};
+
+static int build_subtest_name(struct subtest_cfg *cfg, char *dst, size_t size)
+{
+	int ret;
+
+	ret = snprintf(dst, size, "%s_%s", cfg->ebpf_tun_type,
+		       cfg->mac_tun_type);
+
+	return ret < 0 ? ret : 0;
+}
+
+static int set_subtest_progs(struct subtest_cfg *cfg, struct test_tc_tunnel *skel)
+{
+	char prog_name[PROG_NAME_MAX_LEN];
+	struct bpf_program *prog;
+	int ret;
+
+	ret = snprintf(prog_name, PROG_NAME_MAX_LEN, "__encap_");
+	if (ret < 0)
+		return ret;
+	ret = build_subtest_name(cfg, prog_name + ret, PROG_NAME_MAX_LEN - ret);
+	if (ret < 0)
+		return ret;
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!prog)
+		return -1;
+
+	cfg->client_egress_prog_fd = bpf_program__fd(prog);
+	cfg->server_ingress_prog_fd = bpf_program__fd(skel->progs.decap_f);
+	return 0;
+}
+
+static void set_subtest_addresses(struct subtest_cfg *cfg)
+{
+	if (cfg->ipproto == 6)
+		cfg->server_addr = IP6_ADDR_VETH2;
+	else
+		cfg->server_addr = IP4_ADDR_VETH2;
+
+	/* Some specific tunnel types need specific addressing, it then
+	 * has been already set in the configuration table. Otherwise,
+	 * deduce the relevant addressing from the ipproto
+	 */
+	if (cfg->tunnel_client_addr && cfg->tunnel_server_addr)
+		return;
+
+	if (cfg->ipproto == 6) {
+		cfg->tunnel_client_addr = IP6_ADDR_VETH1;
+		cfg->tunnel_server_addr = IP6_ADDR_VETH2;
+	} else {
+		cfg->tunnel_client_addr = IP4_ADDR_VETH1;
+		cfg->tunnel_server_addr = IP4_ADDR_VETH2;
+	}
+}
+
+static int run_server(struct subtest_cfg *cfg)
+{
+	int family = cfg->ipproto == 6 ? AF_INET6 : AF_INET;
+	struct nstoken *nstoken;
+	struct network_helper_opts opts = {
+		.timeout_ms = TIMEOUT_MS
+	};
+
+	nstoken = open_netns(SERVER_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open server ns"))
+		return -1;
+
+	cfg->server_fd = start_server_str(family, SOCK_STREAM, cfg->server_addr,
+					  TEST_PORT, &opts);
+	close_netns(nstoken);
+	if (!ASSERT_OK_FD(cfg->server_fd, "start server"))
+		return -1;
+
+	return 0;
+}
+
+static int check_server_rx_data(struct subtest_cfg *cfg,
+				struct connection *conn, int len)
+{
+	int err;
+
+	memset(rx_buffer, 0, BUFFER_LEN);
+	err = recv(conn->server_fd, rx_buffer, len, 0);
+	if (!ASSERT_EQ(err, len, "check rx data len"))
+		return 1;
+	if (!ASSERT_MEMEQ(tx_buffer, rx_buffer, len, "check received data"))
+		return 1;
+	return 0;
+}
+
+static struct connection *connect_client_to_server(struct subtest_cfg *cfg)
+{
+	struct network_helper_opts opts = {.timeout_ms = 500};
+	int family = cfg->ipproto == 6 ? AF_INET6 : AF_INET;
+	struct connection *conn = NULL;
+	int client_fd, server_fd;
+
+	conn = malloc(sizeof(struct connection));
+	if (!conn)
+		return conn;
+
+	client_fd = connect_to_addr_str(family, SOCK_STREAM, cfg->server_addr,
+					TEST_PORT, &opts);
+
+	if (client_fd < 0) {
+		free(conn);
+		return NULL;
+	}
+
+	server_fd = accept(cfg->server_fd, NULL, NULL);
+	if (server_fd < 0) {
+		close(client_fd);
+		free(conn);
+		return NULL;
+	}
+
+	conn->server_fd = server_fd;
+	conn->client_fd = client_fd;
+
+	return conn;
+}
+
+static void disconnect_client_from_server(struct subtest_cfg *cfg,
+					  struct connection *conn)
+{
+	close(conn->server_fd);
+	close(conn->client_fd);
+	free(conn);
+}
+
+static int send_and_test_data(struct subtest_cfg *cfg, bool must_succeed)
+{
+	struct connection *conn;
+	int err, res = -1;
+
+	conn = connect_client_to_server(cfg);
+	if (!must_succeed && !ASSERT_ERR_PTR(conn, "connection that must fail"))
+		goto end;
+	else if (!must_succeed)
+		return 0;
+
+	if (!ASSERT_OK_PTR(conn, "connection that must succeed"))
+		return -1;
+
+	err = send(conn->client_fd, tx_buffer, DEFAULT_TEST_DATA_SIZE, 0);
+	if (!ASSERT_EQ(err, DEFAULT_TEST_DATA_SIZE, "send data from client"))
+		goto end;
+	if (check_server_rx_data(cfg, conn, DEFAULT_TEST_DATA_SIZE))
+		goto end;
+
+	if (!cfg->test_gso) {
+		res = 0;
+		goto end;
+	}
+
+	err = send(conn->client_fd, tx_buffer, GSO_TEST_DATA_SIZE, 0);
+	if (!ASSERT_EQ(err, GSO_TEST_DATA_SIZE, "send (large) data from client"))
+		goto end;
+	if (check_server_rx_data(cfg, conn, DEFAULT_TEST_DATA_SIZE))
+		goto end;
+
+	res = 0;
+end:
+	disconnect_client_from_server(cfg, conn);
+	return res;
+}
+
+static void vxlan_decap_mod_args_cb(struct subtest_cfg *cfg, char *dst)
+{
+	snprintf(dst, TUNNEL_ARGS_MAX_LEN, "id %d dstport %d udp6zerocsumrx",
+		 VXLAN_ID, VXLAN_PORT);
+}
+
+static void udp_decap_mod_args_cb(struct subtest_cfg *cfg, char *dst)
+{
+	bool is_mpls = !strcmp(cfg->mac_tun_type, "mpls");
+
+	snprintf(dst, TUNNEL_ARGS_MAX_LEN,
+		 "encap fou encap-sport auto encap-dport %d",
+		 is_mpls ? MPLS_UDP_PORT : UDP_PORT);
+}
+
+static int configure_fou_rx_port(struct subtest_cfg *cfg, bool add)
+{
+	bool is_mpls = strcmp(cfg->mac_tun_type, "mpls") == 0;
+	int fou_proto;
+
+	if (is_mpls)
+		fou_proto = FOU_MPLS_PROTO;
+	else
+		fou_proto = cfg->ipproto == 6 ? 41 : 4;
+
+	SYS(fail, "ip fou %s port %d ipproto %d%s", add ? "add" : "del",
+	    is_mpls ? MPLS_UDP_PORT : UDP_PORT, fou_proto,
+	    cfg->ipproto == 6 ? " -6" : "");
+
+	return 0;
+fail:
+	return 1;
+}
+
+static int add_fou_rx_port(struct subtest_cfg *cfg)
+{
+	return configure_fou_rx_port(cfg, true);
+}
+
+static int del_fou_rx_port(struct subtest_cfg *cfg)
+{
+	return configure_fou_rx_port(cfg, false);
+}
+
+static int update_tunnel_intf_addr(struct subtest_cfg *cfg)
+{
+	SYS(fail, "ip link set dev testtun0 address " MAC_ADDR_VETH2);
+	return 0;
+fail:
+	return -1;
+}
+
+static int configure_kernel_for_mpls(struct subtest_cfg *cfg)
+{
+	SYS(fail, "sysctl -qw net.mpls.platform_labels=%d",
+	    MPLS_TABLE_ENTRIES_COUNT);
+	SYS(fail, "ip -f mpls route add 1000 dev lo");
+	SYS(fail, "ip link set lo up");
+	SYS(fail, "sysctl -qw net.mpls.conf.testtun0.input=1");
+	SYS(fail, "sysctl -qw net.ipv4.conf.lo.rp_filter=0");
+	return 0;
+fail:
+	return -1;
+}
+
+static int configure_encapsulation(struct subtest_cfg *cfg)
+{
+	int ret;
+
+	ret = tc_prog_attach("veth1", -1, cfg->client_egress_prog_fd);
+
+	return ret;
+}
+
+static int configure_kernel_decapsulation(struct subtest_cfg *cfg)
+{
+	struct nstoken *nstoken = open_netns(SERVER_NS);
+	int ret = -1;
+
+	if (!ASSERT_OK_PTR(nstoken, "open server ns"))
+		return ret;
+
+	if (cfg->configure_fou_rx_port &&
+	    !ASSERT_OK(add_fou_rx_port(cfg), "configure FOU RX port"))
+		goto fail;
+	SYS(fail, "ip link add name testtun0 type %s %s remote %s local %s %s",
+	    cfg->iproute_tun_type, cfg->tmode ? cfg->tmode : "",
+	    cfg->tunnel_client_addr, cfg->tunnel_server_addr,
+	    cfg->extra_decap_mod_args);
+	if (cfg->tunnel_need_veth_mac &&
+	    !ASSERT_OK(update_tunnel_intf_addr(cfg), "update testtun0 mac"))
+		goto fail;
+	if (cfg->configure_mpls &&
+	    (!ASSERT_OK(configure_kernel_for_mpls(cfg),
+			"configure MPLS decap")))
+		goto fail;
+	SYS(fail, "sysctl -qw net.ipv4.conf.all.rp_filter=0");
+	SYS(fail, "sysctl -qw net.ipv4.conf.testtun0.rp_filter=0");
+	SYS(fail, "ip link set dev testtun0 up");
+
+	ret = 0;
+fail:
+	close_netns(nstoken);
+	return ret;
+}
+
+static void remove_kernel_decapsulation(struct subtest_cfg *cfg)
+{
+	SYS_NOFAIL("ip link del testtun0");
+	if (cfg->configure_mpls)
+		SYS_NOFAIL("ip -f mpls route del 1000 dev lo");
+	if (cfg->configure_fou_rx_port)
+		del_fou_rx_port(cfg);
+}
+
+static int configure_ebpf_decapsulation(struct subtest_cfg *cfg)
+{
+	struct nstoken *nstoken = open_netns(SERVER_NS);
+	int ret = -1;
+
+	if (!ASSERT_OK_PTR(nstoken, "open server ns"))
+		return ret;
+
+	if (!cfg->expect_kern_decap_failure)
+		SYS(fail, "ip link del testtun0");
+
+	if (!ASSERT_OK(tc_prog_attach("veth2", cfg->server_ingress_prog_fd, -1),
+		       "attach_program"))
+		goto fail;
+
+	ret = 0;
+fail:
+	close_netns(nstoken);
+	return ret;
+}
+
+static void run_test(struct subtest_cfg *cfg)
+{
+	struct nstoken *nstoken;
+
+	if (!ASSERT_OK(run_server(cfg), "run server"))
+		return;
+
+	nstoken = open_netns(CLIENT_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open client ns"))
+		goto fail;
+
+	/* Basic communication must work */
+	if (!ASSERT_OK(send_and_test_data(cfg, true), "connect without any encap"))
+		goto fail;
+
+	/* Attach encapsulation program to client */
+	if (!ASSERT_OK(configure_encapsulation(cfg), "configure encapsulation"))
+		goto fail;
+
+	/* If supported, insert kernel decap module, connection must succeed */
+	if (!cfg->expect_kern_decap_failure) {
+		if (!ASSERT_OK(configure_kernel_decapsulation(cfg),
+					"configure kernel decapsulation"))
+			goto fail;
+		if (!ASSERT_OK(send_and_test_data(cfg, true),
+			       "connect with encap prog and kern decap"))
+			goto fail;
+	}
+
+	/* Replace kernel decapsulation with BPF decapsulation, test must pass */
+	if (!ASSERT_OK(configure_ebpf_decapsulation(cfg), "configure ebpf decapsulation"))
+		goto fail;
+	ASSERT_OK(send_and_test_data(cfg, true), "connect with encap and decap progs");
+
+fail:
+	close_netns(nstoken);
+	close(cfg->server_fd);
+}
+
+static int setup(void)
+{
+	struct nstoken *nstoken_client, *nstoken_server;
+	int fd, err;
+
+	fd = open("/dev/urandom", O_RDONLY);
+	if (!ASSERT_OK_FD(fd, "open urandom"))
+		goto fail;
+	err = read(fd, tx_buffer, BUFFER_LEN);
+	close(fd);
+
+	if (!ASSERT_EQ(err, BUFFER_LEN, "read random bytes"))
+		goto fail;
+
+	/* Configure the testing network */
+	if (!ASSERT_OK(make_netns(CLIENT_NS), "create client ns") ||
+	    !ASSERT_OK(make_netns(SERVER_NS), "create server ns"))
+		goto fail;
+
+	nstoken_client = open_netns(CLIENT_NS);
+	if (!ASSERT_OK_PTR(nstoken_client, "open client ns"))
+		goto fail_delete_ns;
+	SYS(fail_close_ns_client, "ip link add %s type veth peer name %s",
+	    "veth1 mtu 1500 netns " CLIENT_NS " address " MAC_ADDR_VETH1,
+	    "veth2 mtu 1500 netns " SERVER_NS " address " MAC_ADDR_VETH2);
+	SYS(fail_close_ns_client, "ethtool -K veth1 tso off");
+	SYS(fail_close_ns_client, "ip link set veth1 up");
+	nstoken_server = open_netns(SERVER_NS);
+	if (!ASSERT_OK_PTR(nstoken_server, "open server ns"))
+		goto fail_close_ns_client;
+	SYS(fail_close_ns_server, "ip link set veth2 up");
+
+	close_netns(nstoken_server);
+	close_netns(nstoken_client);
+	return 0;
+
+fail_close_ns_server:
+	close_netns(nstoken_server);
+fail_close_ns_client:
+	close_netns(nstoken_client);
+fail_delete_ns:
+	SYS_NOFAIL("ip netns del " CLIENT_NS);
+	SYS_NOFAIL("ip netns del " SERVER_NS);
+fail:
+	return -1;
+}
+
+static int subtest_setup(struct test_tc_tunnel *skel, struct subtest_cfg *cfg)
+{
+	struct nstoken *nstoken_client, *nstoken_server;
+	int ret = -1;
+
+	set_subtest_addresses(cfg);
+	if (!ASSERT_OK(set_subtest_progs(cfg, skel),
+		       "find subtest progs"))
+		goto fail;
+	if (cfg->extra_decap_mod_args_cb)
+		cfg->extra_decap_mod_args_cb(cfg, cfg->extra_decap_mod_args);
+
+	nstoken_client = open_netns(CLIENT_NS);
+	if (!ASSERT_OK_PTR(nstoken_client, "open client ns"))
+		goto fail;
+	SYS(fail_close_client_ns,
+	    "ip -4 addr add " IP4_ADDR_VETH1 "/24 dev veth1");
+	SYS(fail_close_client_ns, "ip -4 route flush table main");
+	SYS(fail_close_client_ns,
+	    "ip -4 route add " IP4_ADDR_VETH2 " mtu 1450 dev veth1");
+	SYS(fail_close_client_ns,
+	    "ip -6 addr add " IP6_ADDR_VETH1 "/64 dev veth1 nodad");
+	SYS(fail_close_client_ns, "ip -6 route flush table main");
+	SYS(fail_close_client_ns,
+	    "ip -6 route add " IP6_ADDR_VETH2 " mtu 1430 dev veth1");
+	nstoken_server = open_netns(SERVER_NS);
+	if (!ASSERT_OK_PTR(nstoken_server, "open server ns"))
+		goto fail_close_client_ns;
+	SYS(fail_close_server_ns,
+	    "ip -4 addr add " IP4_ADDR_VETH2 "/24 dev veth2");
+	SYS(fail_close_server_ns,
+	    "ip -6 addr add " IP6_ADDR_VETH2 "/64 dev veth2 nodad");
+
+	ret = 0;
+
+fail_close_server_ns:
+	close_netns(nstoken_server);
+fail_close_client_ns:
+	close_netns(nstoken_client);
+fail:
+	return ret;
+}
+
+
+static void subtest_cleanup(struct subtest_cfg *cfg)
+{
+	struct nstoken *nstoken;
+
+	nstoken = open_netns(CLIENT_NS);
+	if (ASSERT_OK_PTR(nstoken, "open clien ns")) {
+		SYS_NOFAIL("tc qdisc delete dev veth1 parent ffff:fff1");
+		SYS_NOFAIL("ip a flush veth1");
+		close_netns(nstoken);
+	}
+	nstoken = open_netns(SERVER_NS);
+	if (ASSERT_OK_PTR(nstoken, "open clien ns")) {
+		SYS_NOFAIL("tc qdisc delete dev veth2 parent ffff:fff1");
+		SYS_NOFAIL("ip a flush veth2");
+		if (!cfg->expect_kern_decap_failure)
+			remove_kernel_decapsulation(cfg);
+		close_netns(nstoken);
+	}
+}
+
+static void cleanup(void)
+{
+	remove_netns(CLIENT_NS);
+	remove_netns(SERVER_NS);
+}
+
+static struct subtest_cfg subtests_cfg[] = {
+	{
+		.ebpf_tun_type = "ipip",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "ipip",
+		.ipproto = 4,
+	},
+	{
+		.ebpf_tun_type = "ipip6",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "ip6tnl",
+		.ipproto = 4,
+		.tunnel_client_addr = IP6_ADDR_VETH1,
+		.tunnel_server_addr = IP6_ADDR_VETH2,
+	},
+	{
+		.ebpf_tun_type = "ip6tnl",
+		.iproute_tun_type = "ip6tnl",
+		.mac_tun_type = "none",
+		.ipproto = 6,
+	},
+	{
+		.mac_tun_type = "none",
+		.ebpf_tun_type = "sit",
+		.iproute_tun_type = "sit",
+		.ipproto = 6,
+		.tunnel_client_addr = IP4_ADDR_VETH1,
+		.tunnel_server_addr = IP4_ADDR_VETH2,
+	},
+	{
+		.ebpf_tun_type = "vxlan",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "vxlan",
+		.ipproto = 4,
+		.extra_decap_mod_args_cb = vxlan_decap_mod_args_cb,
+		.tunnel_need_veth_mac = true
+	},
+	{
+		.ebpf_tun_type = "ip6vxlan",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "vxlan",
+		.ipproto = 6,
+		.extra_decap_mod_args_cb = vxlan_decap_mod_args_cb,
+		.tunnel_need_veth_mac = true
+	},
+	{
+		.ebpf_tun_type = "gre",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "gre",
+		.ipproto = 4,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "gre",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "gretap",
+		.ipproto = 4,
+		.tunnel_need_veth_mac = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "gre",
+		.mac_tun_type = "mpls",
+		.iproute_tun_type = "gre",
+		.ipproto = 4,
+		.configure_mpls = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "ip6gre",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "ip6gre",
+		.ipproto = 6,
+		.test_gso = true,
+	},
+	{
+		.ebpf_tun_type = "ip6gre",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "ip6gretap",
+		.ipproto = 6,
+		.tunnel_need_veth_mac = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "ip6gre",
+		.mac_tun_type = "mpls",
+		.iproute_tun_type = "ip6gre",
+		.ipproto = 6,
+		.configure_mpls = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "udp",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "ipip",
+		.ipproto = 4,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "udp",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "ipip",
+		.ipproto = 4,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.expect_kern_decap_failure = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "udp",
+		.mac_tun_type = "mpls",
+		.iproute_tun_type = "ipip",
+		.ipproto = 4,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.tmode = "mode any ttl 255",
+		.configure_mpls = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "ip6udp",
+		.mac_tun_type = "none",
+		.iproute_tun_type = "ip6tnl",
+		.ipproto = 6,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "ip6udp",
+		.mac_tun_type = "eth",
+		.iproute_tun_type = "ip6tnl",
+		.ipproto = 6,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.expect_kern_decap_failure = true,
+		.test_gso = true
+	},
+	{
+		.ebpf_tun_type = "ip6udp",
+		.mac_tun_type = "mpls",
+		.iproute_tun_type = "ip6tnl",
+		.ipproto = 6,
+		.extra_decap_mod_args_cb = udp_decap_mod_args_cb,
+		.configure_fou_rx_port = true,
+		.tmode = "mode any ttl 255",
+		.expect_kern_decap_failure = true,
+		.test_gso = true
+	},
+};
+
+void test_tc_tunnel(void)
+{
+	struct test_tc_tunnel *skel;
+	struct subtest_cfg *cfg;
+	int i, ret;
+
+	skel = test_tc_tunnel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel open and load"))
+		return;
+
+	if (!ASSERT_OK(setup(), "global setup"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(subtests_cfg); i++) {
+		cfg = &subtests_cfg[i];
+		ret = build_subtest_name(cfg, cfg->name, TEST_NAME_MAX_LEN);
+		if (ret < 0 || !test__start_subtest(cfg->name))
+			continue;
+		if (subtest_setup(skel, cfg) == 0)
+			run_test(cfg);
+		subtest_cleanup(cfg);
+	}
+	cleanup();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
new file mode 100644
index 000000000000..eb9309931272
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
@@ -0,0 +1,1074 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * End-to-end eBPF tunnel test suite
+ *   The file tests BPF network tunnel implementation.
+ *
+ * Topology:
+ * ---------
+ *     root namespace   |     at_ns0 namespace
+ *                       |
+ *       -----------     |     -----------
+ *       | tnl dev |     |     | tnl dev |  (overlay network)
+ *       -----------     |     -----------
+ *       metadata-mode   |     metadata-mode
+ *        with bpf       |       with bpf
+ *                       |
+ *       ----------      |     ----------
+ *       |  veth1  | --------- |  veth0  |  (underlay network)
+ *       ----------    peer    ----------
+ *
+ *
+ *  Device Configuration
+ *  --------------------
+ *  root namespace with metadata-mode tunnel + BPF
+ *  Device names and addresses:
+ *	veth1 IP 1: 172.16.1.200, IPv6: 00::22 (underlay)
+ *		IP 2: 172.16.1.20, IPv6: 00::bb (underlay)
+ *	tunnel dev <type>11, ex: gre11, IPv4: 10.1.1.200, IPv6: 1::22 (overlay)
+ *
+ *  Namespace at_ns0 with native tunnel
+ *  Device names and addresses:
+ *	veth0 IPv4: 172.16.1.100, IPv6: 00::11 (underlay)
+ *	tunnel dev <type>00, ex: gre00, IPv4: 10.1.1.100, IPv6: 1::11 (overlay)
+ *
+ *
+ * End-to-end ping packet flow
+ *  ---------------------------
+ *  Most of the tests start by namespace creation, device configuration,
+ *  then ping the underlay and overlay network.  When doing 'ping 10.1.1.100'
+ *  from root namespace, the following operations happen:
+ *  1) Route lookup shows 10.1.1.100/24 belongs to tnl dev, fwd to tnl dev.
+ *  2) Tnl device's egress BPF program is triggered and set the tunnel metadata,
+ *     with local_ip=172.16.1.200, remote_ip=172.16.1.100. BPF program choose
+ *     the primary or secondary ip of veth1 as the local ip of tunnel. The
+ *     choice is made based on the value of bpf map local_ip_map.
+ *  3) Outer tunnel header is prepended and route the packet to veth1's egress.
+ *  4) veth0's ingress queue receive the tunneled packet at namespace at_ns0.
+ *  5) Tunnel protocol handler, ex: vxlan_rcv, decap the packet.
+ *  6) Forward the packet to the overlay tnl dev.
+ */
+
+#include <arpa/inet.h>
+#include <linux/if_link.h>
+#include <linux/if_tun.h>
+#include <linux/limits.h>
+#include <linux/sysctl.h>
+#include <linux/time_types.h>
+#include <linux/net_tstamp.h>
+#include <net/if.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "test_tunnel_kern.skel.h"
+
+#define IP4_ADDR_VETH0 "172.16.1.100"
+#define IP4_ADDR1_VETH1 "172.16.1.200"
+#define IP4_ADDR2_VETH1 "172.16.1.20"
+#define IP4_ADDR_TUNL_DEV0 "10.1.1.100"
+#define IP4_ADDR_TUNL_DEV1 "10.1.1.200"
+#define IP6_ADDR_TUNL_DEV0 "fc80::100"
+#define IP6_ADDR_TUNL_DEV1 "fc80::200"
+
+#define IP6_ADDR_VETH0 "::11"
+#define IP6_ADDR1_VETH1 "::22"
+#define IP6_ADDR2_VETH1 "::bb"
+
+#define IP4_ADDR1_HEX_VETH1 0xac1001c8
+#define IP4_ADDR2_HEX_VETH1 0xac100114
+#define IP6_ADDR1_HEX_VETH1 0x22
+#define IP6_ADDR2_HEX_VETH1 0xbb
+
+#define MAC_TUNL_DEV0 "52:54:00:d9:01:00"
+#define MAC_TUNL_DEV1 "52:54:00:d9:02:00"
+#define MAC_VETH1 "52:54:00:d9:03:00"
+
+#define VXLAN_TUNL_DEV0 "vxlan00"
+#define VXLAN_TUNL_DEV1 "vxlan11"
+#define IP6VXLAN_TUNL_DEV0 "ip6vxlan00"
+#define IP6VXLAN_TUNL_DEV1 "ip6vxlan11"
+
+#define IPIP_TUNL_DEV0 "ipip00"
+#define IPIP_TUNL_DEV1 "ipip11"
+
+#define XFRM_AUTH "0x1111111111111111111111111111111111111111"
+#define XFRM_ENC "0x22222222222222222222222222222222"
+#define XFRM_SPI_IN_TO_OUT 0x1
+#define XFRM_SPI_OUT_TO_IN 0x2
+
+#define GRE_TUNL_DEV0 "gre00"
+#define GRE_TUNL_DEV1 "gre11"
+
+#define IP6GRE_TUNL_DEV0 "ip6gre00"
+#define IP6GRE_TUNL_DEV1 "ip6gre11"
+
+#define ERSPAN_TUNL_DEV0 "erspan00"
+#define ERSPAN_TUNL_DEV1 "erspan11"
+
+#define IP6ERSPAN_TUNL_DEV0 "ip6erspan00"
+#define IP6ERSPAN_TUNL_DEV1 "ip6erspan11"
+
+#define GENEVE_TUNL_DEV0 "geneve00"
+#define GENEVE_TUNL_DEV1 "geneve11"
+
+#define IP6GENEVE_TUNL_DEV0 "ip6geneve00"
+#define IP6GENEVE_TUNL_DEV1 "ip6geneve11"
+
+#define IP6TNL_TUNL_DEV0 "ip6tnl00"
+#define IP6TNL_TUNL_DEV1 "ip6tnl11"
+
+#define PING_ARGS "-i 0.01 -c 3 -w 10 -q"
+
+static int config_device(void)
+{
+	SYS(fail, "ip netns add at_ns0");
+	SYS(fail, "ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");
+	SYS(fail, "ip link set veth0 netns at_ns0");
+	SYS(fail, "ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");
+	SYS(fail, "ip link set dev veth1 up mtu 1500");
+	SYS(fail, "ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");
+	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void cleanup(void)
+{
+	SYS_NOFAIL("test -f /var/run/netns/at_ns0 && ip netns delete at_ns0");
+	SYS_NOFAIL("ip link del veth1");
+	SYS_NOFAIL("ip link del %s", VXLAN_TUNL_DEV1);
+	SYS_NOFAIL("ip link del %s", IP6VXLAN_TUNL_DEV1);
+}
+
+static int add_vxlan_tunnel(void)
+{
+	/* at_ns0 namespace */
+	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external gbp dstport 4789",
+	    VXLAN_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",
+	    VXLAN_TUNL_DEV0, MAC_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",
+	    VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",
+	    IP4_ADDR_TUNL_DEV1, MAC_TUNL_DEV1, VXLAN_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",
+	    IP4_ADDR2_VETH1, MAC_VETH1);
+
+	/* root namespace */
+	SYS(fail, "ip link add dev %s type vxlan external gbp dstport 4789",
+	    VXLAN_TUNL_DEV1);
+	SYS(fail, "ip link set dev %s address %s up", VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);
+	SYS(fail, "ip addr add dev %s %s/24", VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip neigh add %s lladdr %s dev %s",
+	    IP4_ADDR_TUNL_DEV0, MAC_TUNL_DEV0, VXLAN_TUNL_DEV1);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void delete_vxlan_tunnel(void)
+{
+	SYS_NOFAIL("ip netns exec at_ns0 ip link delete dev %s",
+		   VXLAN_TUNL_DEV0);
+	SYS_NOFAIL("ip link delete dev %s", VXLAN_TUNL_DEV1);
+}
+
+static int add_ip6vxlan_tunnel(void)
+{
+	SYS(fail, "ip netns exec at_ns0 ip -6 addr add %s/96 dev veth0",
+	    IP6_ADDR_VETH0);
+	SYS(fail, "ip netns exec at_ns0 ip link set dev veth0 up");
+	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR1_VETH1);
+	SYS(fail, "ip -6 addr add %s/96 dev veth1", IP6_ADDR2_VETH1);
+	SYS(fail, "ip link set dev veth1 up");
+
+	/* at_ns0 namespace */
+	SYS(fail, "ip netns exec at_ns0 ip link add dev %s type vxlan external dstport 4789",
+	    IP6VXLAN_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip addr add dev %s %s/24",
+	    IP6VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip link set dev %s address %s up",
+	    IP6VXLAN_TUNL_DEV0, MAC_TUNL_DEV0);
+
+	/* root namespace */
+	SYS(fail, "ip link add dev %s type vxlan external dstport 4789",
+	    IP6VXLAN_TUNL_DEV1);
+	SYS(fail, "ip addr add dev %s %s/24", IP6VXLAN_TUNL_DEV1, IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip link set dev %s address %s up",
+	    IP6VXLAN_TUNL_DEV1, MAC_TUNL_DEV1);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void delete_ip6vxlan_tunnel(void)
+{
+	SYS_NOFAIL("ip netns exec at_ns0 ip -6 addr delete %s/96 dev veth0",
+		   IP6_ADDR_VETH0);
+	SYS_NOFAIL("ip -6 addr delete %s/96 dev veth1", IP6_ADDR1_VETH1);
+	SYS_NOFAIL("ip -6 addr delete %s/96 dev veth1", IP6_ADDR2_VETH1);
+	SYS_NOFAIL("ip netns exec at_ns0 ip link delete dev %s",
+		   IP6VXLAN_TUNL_DEV0);
+	SYS_NOFAIL("ip link delete dev %s", IP6VXLAN_TUNL_DEV1);
+}
+
+enum ipip_encap {
+	NONE	= 0,
+	FOU	= 1,
+	GUE	= 2,
+};
+
+static int set_ipip_encap(const char *ipproto, const char *type)
+{
+	SYS(fail, "ip -n at_ns0 fou add port 5555 %s", ipproto);
+	SYS(fail, "ip -n at_ns0 link set dev %s type ipip encap %s",
+	    IPIP_TUNL_DEV0, type);
+	SYS(fail, "ip -n at_ns0 link set dev %s type ipip encap-dport 5555",
+	    IPIP_TUNL_DEV0);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int set_ipv4_addr(const char *dev0, const char *dev1)
+{
+	SYS(fail, "ip -n at_ns0 link set dev %s up", dev0);
+	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24", dev0, IP4_ADDR_TUNL_DEV0);
+	SYS(fail, "ip link set dev %s up", dev1);
+	SYS(fail, "ip addr add dev %s %s/24", dev1, IP4_ADDR_TUNL_DEV1);
+
+	return 0;
+fail:
+	return 1;
+}
+
+static int add_ipip_tunnel(enum ipip_encap encap)
+{
+	int err;
+	const char *ipproto, *type;
+
+	switch (encap) {
+	case FOU:
+		ipproto = "ipproto 4";
+		type = "fou";
+		break;
+	case GUE:
+		ipproto = "gue";
+		type = ipproto;
+		break;
+	default:
+		ipproto = NULL;
+		type = ipproto;
+	}
+
+	/* at_ns0 namespace */
+	SYS(fail, "ip -n at_ns0 link add dev %s type ipip local %s remote %s",
+	    IPIP_TUNL_DEV0, IP4_ADDR_VETH0, IP4_ADDR1_VETH1);
+
+	if (type && ipproto) {
+		err = set_ipip_encap(ipproto, type);
+		if (!ASSERT_OK(err, "set_ipip_encap"))
+			goto fail;
+	}
+
+	SYS(fail, "ip -n at_ns0 link set dev %s up", IPIP_TUNL_DEV0);
+	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24",
+	    IPIP_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
+
+	/* root namespace */
+	if (type && ipproto)
+		SYS(fail, "ip fou add port 5555 %s", ipproto);
+	SYS(fail, "ip link add dev %s type ipip external", IPIP_TUNL_DEV1);
+	SYS(fail, "ip link set dev %s up", IPIP_TUNL_DEV1);
+	SYS(fail, "ip addr add dev %s %s/24", IPIP_TUNL_DEV1,
+	    IP4_ADDR_TUNL_DEV1);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void delete_ipip_tunnel(void)
+{
+	SYS_NOFAIL("ip -n at_ns0 link delete dev %s", IPIP_TUNL_DEV0);
+	SYS_NOFAIL("ip -n at_ns0 fou del port 5555");
+	SYS_NOFAIL("ip link delete dev %s", IPIP_TUNL_DEV1);
+	SYS_NOFAIL("ip fou del port 5555");
+}
+
+static int add_xfrm_tunnel(void)
+{
+	/* at_ns0 namespace
+	 * at_ns0 -> root
+	 */
+	SYS(fail,
+	    "ip netns exec at_ns0 "
+		"ip xfrm state add src %s dst %s proto esp "
+			"spi %d reqid 1 mode tunnel replay-window 42 "
+			"auth-trunc 'hmac(sha1)' %s 96 enc 'cbc(aes)' %s",
+	    IP4_ADDR_VETH0, IP4_ADDR1_VETH1, XFRM_SPI_IN_TO_OUT, XFRM_AUTH, XFRM_ENC);
+	SYS(fail,
+	    "ip netns exec at_ns0 "
+		"ip xfrm policy add src %s/32 dst %s/32 dir out "
+			"tmpl src %s dst %s proto esp reqid 1 "
+			"mode tunnel",
+	    IP4_ADDR_TUNL_DEV0, IP4_ADDR_TUNL_DEV1, IP4_ADDR_VETH0, IP4_ADDR1_VETH1);
+
+	/* root -> at_ns0 */
+	SYS(fail,
+	    "ip netns exec at_ns0 "
+		"ip xfrm state add src %s dst %s proto esp "
+			"spi %d reqid 2 mode tunnel "
+			"auth-trunc 'hmac(sha1)' %s 96 enc 'cbc(aes)' %s",
+	    IP4_ADDR1_VETH1, IP4_ADDR_VETH0, XFRM_SPI_OUT_TO_IN, XFRM_AUTH, XFRM_ENC);
+	SYS(fail,
+	    "ip netns exec at_ns0 "
+		"ip xfrm policy add src %s/32 dst %s/32 dir in "
+			"tmpl src %s dst %s proto esp reqid 2 "
+			"mode tunnel",
+	    IP4_ADDR_TUNL_DEV1, IP4_ADDR_TUNL_DEV0, IP4_ADDR1_VETH1, IP4_ADDR_VETH0);
+
+	/* address & route */
+	SYS(fail, "ip netns exec at_ns0 ip addr add dev veth0 %s/32",
+	    IP4_ADDR_TUNL_DEV0);
+	SYS(fail, "ip netns exec at_ns0 ip route add %s dev veth0 via %s src %s",
+	    IP4_ADDR_TUNL_DEV1, IP4_ADDR1_VETH1, IP4_ADDR_TUNL_DEV0);
+
+	/* root namespace
+	 * at_ns0 -> root
+	 */
+	SYS(fail,
+	    "ip xfrm state add src %s dst %s proto esp "
+		    "spi %d reqid 1 mode tunnel replay-window 42 "
+		    "auth-trunc 'hmac(sha1)' %s 96  enc 'cbc(aes)' %s",
+	    IP4_ADDR_VETH0, IP4_ADDR1_VETH1, XFRM_SPI_IN_TO_OUT, XFRM_AUTH, XFRM_ENC);
+	SYS(fail,
+	    "ip xfrm policy add src %s/32 dst %s/32 dir in "
+		    "tmpl src %s dst %s proto esp reqid 1 "
+		    "mode tunnel",
+	    IP4_ADDR_TUNL_DEV0, IP4_ADDR_TUNL_DEV1, IP4_ADDR_VETH0, IP4_ADDR1_VETH1);
+
+	/* root -> at_ns0 */
+	SYS(fail,
+	    "ip xfrm state add src %s dst %s proto esp "
+		    "spi %d reqid 2 mode tunnel "
+		    "auth-trunc 'hmac(sha1)' %s 96  enc 'cbc(aes)' %s",
+	    IP4_ADDR1_VETH1, IP4_ADDR_VETH0, XFRM_SPI_OUT_TO_IN, XFRM_AUTH, XFRM_ENC);
+	SYS(fail,
+	    "ip xfrm policy add src %s/32 dst %s/32 dir out "
+		    "tmpl src %s dst %s proto esp reqid 2 "
+		    "mode tunnel",
+	    IP4_ADDR_TUNL_DEV1, IP4_ADDR_TUNL_DEV0, IP4_ADDR1_VETH1, IP4_ADDR_VETH0);
+
+	/* address & route */
+	SYS(fail, "ip addr add dev veth1 %s/32", IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip route add %s dev veth1 via %s src %s",
+	    IP4_ADDR_TUNL_DEV0, IP4_ADDR_VETH0, IP4_ADDR_TUNL_DEV1);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void delete_xfrm_tunnel(void)
+{
+	SYS_NOFAIL("ip xfrm policy delete dir out src %s/32 dst %s/32",
+		   IP4_ADDR_TUNL_DEV1, IP4_ADDR_TUNL_DEV0);
+	SYS_NOFAIL("ip xfrm policy delete dir in src %s/32 dst %s/32",
+		   IP4_ADDR_TUNL_DEV0, IP4_ADDR_TUNL_DEV1);
+	SYS_NOFAIL("ip xfrm state delete src %s dst %s proto esp spi %d",
+		   IP4_ADDR_VETH0, IP4_ADDR1_VETH1, XFRM_SPI_IN_TO_OUT);
+	SYS_NOFAIL("ip xfrm state delete src %s dst %s proto esp spi %d",
+		   IP4_ADDR1_VETH1, IP4_ADDR_VETH0, XFRM_SPI_OUT_TO_IN);
+}
+
+static int add_ipv4_tunnel(const char *dev0, const char *dev1,
+			   const char *type, const char *opt)
+{
+	if (!type || !opt || !dev0 || !dev1)
+		return -1;
+
+	SYS(fail, "ip -n at_ns0 link add dev %s type %s %s local %s remote %s",
+	    dev0, type, opt, IP4_ADDR_VETH0, IP4_ADDR1_VETH1);
+
+	SYS(fail, "ip link add dev %s type %s external", dev1, type);
+
+	return set_ipv4_addr(dev0, dev1);
+fail:
+	return -1;
+}
+
+static void delete_tunnel(const char *dev0, const char *dev1)
+{
+	if (!dev0 || !dev1)
+		return;
+
+	SYS_NOFAIL("ip netns exec at_ns0 ip link delete dev %s", dev0);
+	SYS_NOFAIL("ip link delete dev %s", dev1);
+}
+
+static int set_ipv6_addr(const char *dev0, const char *dev1)
+{
+	/* disable IPv6 DAD because it might take too long and fail tests */
+	SYS(fail, "ip -n at_ns0 addr add %s/96 dev veth0 nodad", IP6_ADDR_VETH0);
+	SYS(fail, "ip -n at_ns0 link set dev veth0 up");
+	SYS(fail, "ip addr add %s/96 dev veth1 nodad", IP6_ADDR1_VETH1);
+	SYS(fail, "ip link set dev veth1 up");
+
+	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24", dev0, IP4_ADDR_TUNL_DEV0);
+	SYS(fail, "ip -n at_ns0 addr add dev %s %s/96 nodad", dev0, IP6_ADDR_TUNL_DEV0);
+	SYS(fail, "ip -n at_ns0 link set dev %s up", dev0);
+
+	SYS(fail, "ip addr add dev %s %s/24", dev1, IP4_ADDR_TUNL_DEV1);
+	SYS(fail, "ip addr add dev %s %s/96 nodad", dev1, IP6_ADDR_TUNL_DEV1);
+	SYS(fail, "ip link set dev %s up", dev1);
+	return 0;
+fail:
+	return 1;
+}
+
+static int add_ipv6_tunnel(const char *dev0, const char *dev1,
+			   const char *type, const char *opt)
+{
+	if (!type || !opt || !dev0 || !dev1)
+		return -1;
+
+	SYS(fail, "ip -n at_ns0 link add dev %s type %s %s local %s remote %s",
+	    dev0, type, opt, IP6_ADDR_VETH0, IP6_ADDR1_VETH1);
+
+	SYS(fail, "ip link add dev %s type %s external", dev1, type);
+
+	return set_ipv6_addr(dev0, dev1);
+fail:
+	return -1;
+}
+
+static int add_geneve_tunnel(const char *dev0, const char *dev1,
+			     const char *type, const char *opt)
+{
+	if (!type || !opt || !dev0 || !dev1)
+		return -1;
+
+	SYS(fail, "ip -n at_ns0 link add dev %s type %s id 2 %s remote %s",
+	    dev0, type, opt, IP4_ADDR1_VETH1);
+
+	SYS(fail, "ip link add dev %s type %s %s external", dev1, type, opt);
+
+	return set_ipv4_addr(dev0, dev1);
+fail:
+	return -1;
+}
+
+static int add_ip6geneve_tunnel(const char *dev0, const char *dev1,
+			     const char *type, const char *opt)
+{
+	if (!type || !opt || !dev0 || !dev1)
+		return -1;
+
+	SYS(fail, "ip -n at_ns0 link add dev %s type %s id 22 %s remote %s",
+	    dev0, type, opt, IP6_ADDR1_VETH1);
+
+	SYS(fail, "ip link add dev %s type %s %s external", dev1, type, opt);
+
+	return set_ipv6_addr(dev0, dev1);
+fail:
+	return -1;
+}
+
+static int test_ping(int family, const char *addr)
+{
+	SYS(fail, "%s %s %s > /dev/null", ping_command(family), PING_ARGS, addr);
+	return 0;
+fail:
+	return -1;
+}
+
+static void ping_dev0(void)
+{
+	/* ping from root namespace test */
+	test_ping(AF_INET, IP4_ADDR_TUNL_DEV0);
+}
+
+static void ping_dev1(void)
+{
+	struct nstoken *nstoken;
+
+	/* ping from at_ns0 namespace test */
+	nstoken = open_netns("at_ns0");
+	if (!ASSERT_OK_PTR(nstoken, "setns"))
+		return;
+
+	test_ping(AF_INET, IP4_ADDR_TUNL_DEV1);
+	close_netns(nstoken);
+}
+
+static void ping6_veth0(void)
+{
+	test_ping(AF_INET6, IP6_ADDR_VETH0);
+}
+
+static void ping6_dev0(void)
+{
+	test_ping(AF_INET6, IP6_ADDR_TUNL_DEV0);
+}
+
+static void ping6_dev1(void)
+{
+	struct nstoken *nstoken;
+
+	/* ping from at_ns0 namespace test */
+	nstoken = open_netns("at_ns0");
+	if (!ASSERT_OK_PTR(nstoken, "setns"))
+		return;
+
+	test_ping(AF_INET, IP6_ADDR_TUNL_DEV1);
+	close_netns(nstoken);
+}
+
+static void test_vxlan_tunnel(void)
+{
+	struct test_tunnel_kern *skel = NULL;
+	struct nstoken *nstoken;
+	int local_ip_map_fd = -1;
+	int set_src_prog_fd, get_src_prog_fd;
+	int set_dst_prog_fd;
+	int key = 0;
+	uint local_ip;
+	int err;
+
+	/* add vxlan tunnel */
+	err = add_vxlan_tunnel();
+	if (!ASSERT_OK(err, "add vxlan tunnel"))
+		goto done;
+
+	/* load and attach bpf prog to tunnel dev tc hook point */
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		goto done;
+	get_src_prog_fd = bpf_program__fd(skel->progs.vxlan_get_tunnel_src);
+	set_src_prog_fd = bpf_program__fd(skel->progs.vxlan_set_tunnel_src);
+	if (tc_prog_attach(VXLAN_TUNL_DEV1, get_src_prog_fd, set_src_prog_fd))
+		goto done;
+
+	/* load and attach bpf prog to veth dev tc hook point */
+	set_dst_prog_fd = bpf_program__fd(skel->progs.veth_set_outer_dst);
+	if (tc_prog_attach("veth1", set_dst_prog_fd, -1))
+		goto done;
+
+	/* load and attach prog set_md to tunnel dev tc hook point at_ns0 */
+	nstoken = open_netns("at_ns0");
+	if (!ASSERT_OK_PTR(nstoken, "setns src"))
+		goto done;
+	set_dst_prog_fd = bpf_program__fd(skel->progs.vxlan_set_tunnel_dst);
+	if (tc_prog_attach(VXLAN_TUNL_DEV0, -1, set_dst_prog_fd))
+		goto done;
+	close_netns(nstoken);
+
+	/* use veth1 ip 2 as tunnel source ip */
+	local_ip_map_fd = bpf_map__fd(skel->maps.local_ip_map);
+	if (!ASSERT_GE(local_ip_map_fd, 0, "bpf_map__fd"))
+		goto done;
+	local_ip = IP4_ADDR2_HEX_VETH1;
+	err = bpf_map_update_elem(local_ip_map_fd, &key, &local_ip, BPF_ANY);
+	if (!ASSERT_OK(err, "update bpf local_ip_map"))
+		goto done;
+
+	/* ping test */
+	ping_dev0();
+
+done:
+	/* delete vxlan tunnel */
+	delete_vxlan_tunnel();
+	if (local_ip_map_fd >= 0)
+		close(local_ip_map_fd);
+	if (skel)
+		test_tunnel_kern__destroy(skel);
+}
+
+static void test_ip6vxlan_tunnel(void)
+{
+	struct test_tunnel_kern *skel = NULL;
+	struct nstoken *nstoken;
+	int local_ip_map_fd = -1;
+	int set_src_prog_fd, get_src_prog_fd;
+	int set_dst_prog_fd;
+	int key = 0;
+	uint local_ip;
+	int err;
+
+	/* add vxlan tunnel */
+	err = add_ip6vxlan_tunnel();
+	if (!ASSERT_OK(err, "add_ip6vxlan_tunnel"))
+		goto done;
+
+	/* load and attach bpf prog to tunnel dev tc hook point */
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		goto done;
+	get_src_prog_fd = bpf_program__fd(skel->progs.ip6vxlan_get_tunnel_src);
+	set_src_prog_fd = bpf_program__fd(skel->progs.ip6vxlan_set_tunnel_src);
+	if (tc_prog_attach(IP6VXLAN_TUNL_DEV1, get_src_prog_fd, set_src_prog_fd))
+		goto done;
+
+	/* load and attach prog set_md to tunnel dev tc hook point at_ns0 */
+	nstoken = open_netns("at_ns0");
+	if (!ASSERT_OK_PTR(nstoken, "setns src"))
+		goto done;
+	set_dst_prog_fd = bpf_program__fd(skel->progs.ip6vxlan_set_tunnel_dst);
+	if (tc_prog_attach(IP6VXLAN_TUNL_DEV0, -1, set_dst_prog_fd))
+		goto done;
+	close_netns(nstoken);
+
+	/* use veth1 ip 2 as tunnel source ip */
+	local_ip_map_fd = bpf_map__fd(skel->maps.local_ip_map);
+	if (!ASSERT_GE(local_ip_map_fd, 0, "get local_ip_map fd"))
+		goto done;
+	local_ip = IP6_ADDR2_HEX_VETH1;
+	err = bpf_map_update_elem(local_ip_map_fd, &key, &local_ip, BPF_ANY);
+	if (!ASSERT_OK(err, "update bpf local_ip_map"))
+		goto done;
+
+	/* ping test */
+	ping_dev0();
+
+done:
+	/* delete ipv6 vxlan tunnel */
+	delete_ip6vxlan_tunnel();
+	if (local_ip_map_fd >= 0)
+		close(local_ip_map_fd);
+	if (skel)
+		test_tunnel_kern__destroy(skel);
+}
+
+static void test_ipip_tunnel(enum ipip_encap encap)
+{
+	struct test_tunnel_kern *skel = NULL;
+	int set_src_prog_fd, get_src_prog_fd;
+	int err;
+
+	/* add ipip tunnel */
+	err = add_ipip_tunnel(encap);
+	if (!ASSERT_OK(err, "add_ipip_tunnel"))
+		goto done;
+
+	/* load and attach bpf prog to tunnel dev tc hook point */
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		goto done;
+
+	switch (encap) {
+	case FOU:
+		get_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_encap_get_tunnel);
+		set_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_fou_set_tunnel);
+		break;
+	case GUE:
+		get_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_encap_get_tunnel);
+		set_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_gue_set_tunnel);
+		break;
+	default:
+		get_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_get_tunnel);
+		set_src_prog_fd = bpf_program__fd(
+			skel->progs.ipip_set_tunnel);
+	}
+
+	if (tc_prog_attach(IPIP_TUNL_DEV1, get_src_prog_fd, set_src_prog_fd))
+		goto done;
+
+	ping_dev0();
+	ping_dev1();
+
+done:
+	/* delete ipip tunnel */
+	delete_ipip_tunnel();
+	if (skel)
+		test_tunnel_kern__destroy(skel);
+}
+
+static void test_xfrm_tunnel(void)
+{
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+	struct test_tunnel_kern *skel = NULL;
+	int xdp_prog_fd;
+	int tc_prog_fd;
+	int ifindex;
+	int err;
+
+	err = add_xfrm_tunnel();
+	if (!ASSERT_OK(err, "add_xfrm_tunnel"))
+		return;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		goto done;
+
+
+	/* attach tc prog to tunnel dev */
+	tc_prog_fd = bpf_program__fd(skel->progs.xfrm_get_state);
+	if (tc_prog_attach("veth1", tc_prog_fd, -1))
+		goto done;
+
+	/* attach xdp prog to tunnel dev */
+	ifindex = if_nametoindex("veth1");
+	if (!ASSERT_NEQ(ifindex, 0, "veth1 ifindex"))
+		goto done;
+	xdp_prog_fd = bpf_program__fd(skel->progs.xfrm_get_state_xdp);
+	if (!ASSERT_GE(xdp_prog_fd, 0, "bpf_program__fd"))
+		goto done;
+	err = bpf_xdp_attach(ifindex, xdp_prog_fd, XDP_FLAGS_REPLACE, &opts);
+	if (!ASSERT_OK(err, "bpf_xdp_attach"))
+		goto done;
+
+	ping_dev1();
+
+	if (!ASSERT_EQ(skel->bss->xfrm_reqid, 1, "req_id"))
+		goto done;
+	if (!ASSERT_EQ(skel->bss->xfrm_spi, XFRM_SPI_IN_TO_OUT, "spi"))
+		goto done;
+	if (!ASSERT_EQ(skel->bss->xfrm_remote_ip, 0xac100164, "remote_ip"))
+		goto done;
+	if (!ASSERT_EQ(skel->bss->xfrm_replay_window, 42, "replay_window"))
+		goto done;
+
+done:
+	delete_xfrm_tunnel();
+	if (skel)
+		test_tunnel_kern__destroy(skel);
+}
+
+enum gre_test {
+	GRE,
+	GRE_NOKEY,
+	GRETAP,
+	GRETAP_NOKEY,
+};
+
+static void test_gre_tunnel(enum gre_test test)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	switch (test) {
+	case GRE:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gre", "seq");
+		set_fd = bpf_program__fd(skel->progs.gre_set_tunnel_no_key);
+		get_fd = bpf_program__fd(skel->progs.gre_get_tunnel);
+		break;
+	case GRE_NOKEY:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gre", "seq key 2");
+		set_fd = bpf_program__fd(skel->progs.gre_set_tunnel);
+		get_fd = bpf_program__fd(skel->progs.gre_get_tunnel);
+		break;
+	case GRETAP:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gretap", "seq");
+		set_fd = bpf_program__fd(skel->progs.gre_set_tunnel_no_key);
+		get_fd = bpf_program__fd(skel->progs.gre_get_tunnel);
+		break;
+	case GRETAP_NOKEY:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gretap", "seq key 2");
+		set_fd = bpf_program__fd(skel->progs.gre_set_tunnel);
+		get_fd = bpf_program__fd(skel->progs.gre_get_tunnel);
+		break;
+	}
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	if (tc_prog_attach(GRE_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping_dev0();
+	ping_dev1();
+
+done:
+	delete_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+enum ip6gre_test {
+	IP6GRE,
+	IP6GRETAP
+};
+
+static void test_ip6gre_tunnel(enum ip6gre_test test)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	switch (test) {
+	case IP6GRE:
+		err = add_ipv6_tunnel(IP6GRE_TUNL_DEV0, IP6GRE_TUNL_DEV1,
+				      "ip6gre", "flowlabel 0xbcdef key 2");
+		break;
+	case IP6GRETAP:
+		err = add_ipv6_tunnel(IP6GRE_TUNL_DEV0, IP6GRE_TUNL_DEV1,
+				      "ip6gretap", "flowlabel 0xbcdef key 2");
+		break;
+	}
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	set_fd = bpf_program__fd(skel->progs.ip6gretap_set_tunnel);
+	get_fd = bpf_program__fd(skel->progs.ip6gretap_get_tunnel);
+	if (tc_prog_attach(IP6GRE_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping6_veth0();
+	ping6_dev1();
+	ping_dev0();
+	ping_dev1();
+done:
+	delete_tunnel(IP6GRE_TUNL_DEV0, IP6GRE_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+enum erspan_test {
+	V1,
+	V2
+};
+
+static void test_erspan_tunnel(enum erspan_test test)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	switch (test) {
+	case V1:
+		err = add_ipv4_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1,
+				      "erspan", "seq key 2 erspan_ver 1 erspan 123");
+		break;
+	case V2:
+		err = add_ipv4_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1,
+				      "erspan",
+				      "seq key 2 erspan_ver 2 erspan_dir egress erspan_hwid 3");
+		break;
+	}
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	set_fd = bpf_program__fd(skel->progs.erspan_set_tunnel);
+	get_fd = bpf_program__fd(skel->progs.erspan_get_tunnel);
+	if (tc_prog_attach(ERSPAN_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping_dev0();
+	ping_dev1();
+done:
+	delete_tunnel(ERSPAN_TUNL_DEV0, ERSPAN_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+static void test_ip6erspan_tunnel(enum erspan_test test)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	switch (test) {
+	case V1:
+		err = add_ipv6_tunnel(IP6ERSPAN_TUNL_DEV0, IP6ERSPAN_TUNL_DEV1,
+				      "ip6erspan", "seq key 2 erspan_ver 1 erspan 123");
+		break;
+	case V2:
+		err = add_ipv6_tunnel(IP6ERSPAN_TUNL_DEV0, IP6ERSPAN_TUNL_DEV1,
+				      "ip6erspan",
+				      "seq key 2 erspan_ver 2 erspan_dir egress erspan_hwid 7");
+		break;
+	}
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	set_fd = bpf_program__fd(skel->progs.ip4ip6erspan_set_tunnel);
+	get_fd = bpf_program__fd(skel->progs.ip4ip6erspan_get_tunnel);
+	if (tc_prog_attach(IP6ERSPAN_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping6_veth0();
+	ping_dev1();
+done:
+	delete_tunnel(IP6ERSPAN_TUNL_DEV0, IP6ERSPAN_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+static void test_geneve_tunnel(void)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	err = add_geneve_tunnel(GENEVE_TUNL_DEV0, GENEVE_TUNL_DEV1,
+				"geneve", "dstport 6081");
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	set_fd = bpf_program__fd(skel->progs.geneve_set_tunnel);
+	get_fd = bpf_program__fd(skel->progs.geneve_get_tunnel);
+	if (tc_prog_attach(GENEVE_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping_dev0();
+	ping_dev1();
+done:
+	delete_tunnel(GENEVE_TUNL_DEV0, GENEVE_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+static void test_ip6geneve_tunnel(void)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	err = add_ip6geneve_tunnel(IP6GENEVE_TUNL_DEV0, IP6GENEVE_TUNL_DEV1,
+				   "geneve", "");
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	set_fd = bpf_program__fd(skel->progs.ip6geneve_set_tunnel);
+	get_fd = bpf_program__fd(skel->progs.ip6geneve_get_tunnel);
+	if (tc_prog_attach(IP6GENEVE_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping_dev0();
+	ping_dev1();
+done:
+	delete_tunnel(IP6GENEVE_TUNL_DEV0, IP6GENEVE_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+enum ip6tnl_test {
+	IPIP6,
+	IP6IP6
+};
+
+static void test_ip6tnl_tunnel(enum ip6tnl_test test)
+{
+	struct test_tunnel_kern *skel;
+	int set_fd, get_fd;
+	int err;
+
+	skel = test_tunnel_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_tunnel_kern__open_and_load"))
+		return;
+
+	err = add_ipv6_tunnel(IP6TNL_TUNL_DEV0, IP6TNL_TUNL_DEV1, "ip6tnl", "");
+	if (!ASSERT_OK(err, "add tunnel"))
+		goto done;
+
+	switch (test) {
+	case IPIP6:
+		set_fd = bpf_program__fd(skel->progs.ipip6_set_tunnel);
+		get_fd = bpf_program__fd(skel->progs.ipip6_get_tunnel);
+		break;
+	case IP6IP6:
+		set_fd = bpf_program__fd(skel->progs.ip6ip6_set_tunnel);
+		get_fd = bpf_program__fd(skel->progs.ip6ip6_get_tunnel);
+		break;
+	}
+	if (tc_prog_attach(IP6TNL_TUNL_DEV1, get_fd, set_fd))
+		goto done;
+
+	ping6_veth0();
+	switch (test) {
+	case IPIP6:
+		ping_dev0();
+		ping_dev1();
+		break;
+	case IP6IP6:
+		ping6_dev0();
+		ping6_dev1();
+		break;
+	}
+
+done:
+	delete_tunnel(IP6TNL_TUNL_DEV0, IP6TNL_TUNL_DEV1);
+	test_tunnel_kern__destroy(skel);
+}
+
+#define RUN_TEST(name, ...)						\
+	({								\
+		if (test__start_subtest(#name)) {			\
+			config_device();				\
+			test_ ## name(__VA_ARGS__);			\
+			cleanup();					\
+		}							\
+	})
+
+static void *test_tunnel_run_tests(void *arg)
+{
+	RUN_TEST(vxlan_tunnel);
+	RUN_TEST(ip6vxlan_tunnel);
+	RUN_TEST(ipip_tunnel, NONE);
+	RUN_TEST(ipip_tunnel, FOU);
+	RUN_TEST(ipip_tunnel, GUE);
+	RUN_TEST(xfrm_tunnel);
+	RUN_TEST(gre_tunnel, GRE);
+	RUN_TEST(gre_tunnel, GRE_NOKEY);
+	RUN_TEST(gre_tunnel, GRETAP);
+	RUN_TEST(gre_tunnel, GRETAP_NOKEY);
+	RUN_TEST(ip6gre_tunnel, IP6GRE);
+	RUN_TEST(ip6gre_tunnel, IP6GRETAP);
+	RUN_TEST(erspan_tunnel, V1);
+	RUN_TEST(erspan_tunnel, V2);
+	RUN_TEST(ip6erspan_tunnel, V1);
+	RUN_TEST(ip6erspan_tunnel, V2);
+	RUN_TEST(geneve_tunnel);
+	RUN_TEST(ip6geneve_tunnel);
+	RUN_TEST(ip6tnl_tunnel, IPIP6);
+	RUN_TEST(ip6tnl_tunnel, IP6IP6);
+
+	return NULL;
+}
+
+void test_tunnel(void)
+{
+	pthread_t test_thread;
+	int err;
+
+	/* Run the tests in their own thread to isolate the namespace changes
+	 * so they do not affect the environment of other tests.
+	 * (specifically needed because of unshare(CLONE_NEWNS) in open_netns())
+	 */
+	err = pthread_create(&test_thread, NULL, &test_tunnel_run_tests, NULL);
+	if (ASSERT_OK(err, "pthread_create"))
+		ASSERT_OK(pthread_join(test_thread, NULL), "pthread_join");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_veristat.c b/tools/testing/selftests/bpf/prog_tests/test_veristat.c
new file mode 100644
index 000000000000..b38c16b4247f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_veristat.c
@@ -0,0 +1,261 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <string.h>
+#include <stdio.h>
+
+#define __CHECK_STR(str, name)					    \
+	do {							    \
+		if (!ASSERT_HAS_SUBSTR(fix->output, (str), (name))) \
+			goto out;				    \
+	} while (0)
+
+struct fixture {
+	char tmpfile[80];
+	int fd;
+	char *output;
+	size_t sz;
+	char veristat[80];
+};
+
+static struct fixture *init_fixture(void)
+{
+	struct fixture *fix = malloc(sizeof(struct fixture));
+
+	/* for no_alu32 and cpuv4 veristat is in parent folder */
+	if (access("./veristat", F_OK) == 0)
+		strcpy(fix->veristat, "./veristat");
+	else if (access("../veristat", F_OK) == 0)
+		strcpy(fix->veristat, "../veristat");
+	else
+		PRINT_FAIL("Can't find veristat binary");
+
+	snprintf(fix->tmpfile, sizeof(fix->tmpfile), "/tmp/test_veristat.XXXXXX");
+	fix->fd = mkstemp(fix->tmpfile);
+	fix->sz = 1000000;
+	fix->output = malloc(fix->sz);
+	return fix;
+}
+
+static void teardown_fixture(struct fixture *fix)
+{
+	free(fix->output);
+	close(fix->fd);
+	remove(fix->tmpfile);
+	free(fix);
+}
+
+static void test_set_global_vars_succeeds(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS(out,
+	    "%s set_global_vars.bpf.o"\
+	    " -G \"var_s64 = 0xf000000000000001\" "\
+	    " -G \"var_u64 = 0xfedcba9876543210\" "\
+	    " -G \"var_s32 = -0x80000000\" "\
+	    " -G \"var_u32 = 0x76543210\" "\
+	    " -G \"var_s16 = -32768\" "\
+	    " -G \"var_u16 = 60652\" "\
+	    " -G \"var_s8 = -128\" "\
+	    " -G \"var_u8 = 255\" "\
+	    " -G \"var_ea = EA2\" "\
+	    " -G \"var_eb  =  EB2\" "\
+	    " -G \"var_ec=EC2\" "\
+	    " -G \"var_b = 1\" "\
+	    " -G \"struct1[2].struct2[1][2].u.var_u8[2]=170\" "\
+	    " -G \"union1.struct3.var_u8_l = 0xaa\" "\
+	    " -G \"union1.struct3.var_u8_h = 0xaa\" "\
+	    " -G \"arr[3]= 171\" "	\
+	    " -G \"arr[EA2] =172\" "	\
+	    " -G \"enum_arr[EC2]=EA3\" " \
+	    " -G \"three_d[31][7][EA2]=173\"" \
+	    " -G \"struct1[2].struct2[1][2].u.mat[5][3]=174\" " \
+	    " -G \"struct11 [ 7 ] [ 5 ] .struct2[0][1].u.mat[3][0] = 175\" " \
+	    " -vl2 > %s", fix->veristat, fix->tmpfile);
+
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("=0xf000000000000001 ", "var_s64 = 0xf000000000000001");
+	__CHECK_STR("=0xfedcba9876543210 ", "var_u64 = 0xfedcba9876543210");
+	__CHECK_STR("=0x80000000 ", "var_s32 = -0x80000000");
+	__CHECK_STR("=0x76543210 ", "var_u32 = 0x76543210");
+	__CHECK_STR("=0x8000 ", "var_s16 = -32768");
+	__CHECK_STR("=0xecec ", "var_u16 = 60652");
+	__CHECK_STR("=128 ", "var_s8 = -128");
+	__CHECK_STR("=255 ", "var_u8 = 255");
+	__CHECK_STR("=11 ", "var_ea = EA2");
+	__CHECK_STR("=12 ", "var_eb = EB2");
+	__CHECK_STR("=13 ", "var_ec = EC2");
+	__CHECK_STR("=1 ", "var_b = 1");
+	__CHECK_STR("=170 ", "struct1[2].struct2[1][2].u.var_u8[2]=170");
+	__CHECK_STR("=0xaaaa ", "union1.var_u16 = 0xaaaa");
+	__CHECK_STR("=171 ", "arr[3]= 171");
+	__CHECK_STR("=172 ", "arr[EA2] =172");
+	__CHECK_STR("=10 ", "enum_arr[EC2]=EA3");
+	__CHECK_STR("=173 ", "matrix[31][7][11]=173");
+	__CHECK_STR("=174 ", "struct1[2].struct2[1][2].u.mat[5][3]=174");
+	__CHECK_STR("=175 ", "struct11[7][5].struct2[0][1].u.mat[3][0]=175");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_set_global_vars_from_file_succeeds(void)
+{
+	struct fixture *fix = init_fixture();
+	char input_file[80];
+	const char *vars = "var_s16 = -32768\nvar_u16 = 60652";
+	int fd;
+
+	snprintf(input_file, sizeof(input_file), "/tmp/veristat_input.XXXXXX");
+	fd = mkstemp(input_file);
+	if (!ASSERT_GE(fd, 0, "valid fd"))
+		goto out;
+
+	write(fd, vars, strlen(vars));
+	syncfs(fd);
+	SYS(out, "%s set_global_vars.bpf.o -G \"@%s\" -vl2 > %s",
+	    fix->veristat, input_file, fix->tmpfile);
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("=0x8000 ", "var_s16 = -32768");
+	__CHECK_STR("=0xecec ", "var_u16 = 60652");
+
+out:
+	close(fd);
+	remove(input_file);
+	teardown_fixture(fix);
+}
+
+static void test_set_global_vars_out_of_range(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"var_s32 = 2147483648\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("is out of range [-2147483648; 2147483647]", "out of range");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_unsupported_ptr_array_type(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"ptr_arr[0] = 0\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("Can't set ptr_arr[0]. Only ints and enums are supported", "ptr_arr");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_array_out_of_bounds(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"arr[99] = 0\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("Array index 99 is out of bounds", "arr[99]");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_array_index_not_found(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"arr[EG2] = 0\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	read(fix->fd, fix->output, fix->sz);
+	__CHECK_STR("Can't resolve enum value EG2", "arr[EG2]");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_array_index_for_non_array(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"var_b[0] = 1\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	pread(fix->fd, fix->output, fix->sz, 0);
+	__CHECK_STR("Array index is not expected for var_b", "var_b[0] = 1");
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"union1.struct3[0].var_u8_l=1\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	pread(fix->fd, fix->output, fix->sz, 0);
+	__CHECK_STR("Array index is not expected for struct3", "union1.struct3[0].var_u8_l=1");
+
+out:
+	teardown_fixture(fix);
+}
+
+static void test_no_array_index_for_array(void)
+{
+	struct fixture *fix = init_fixture();
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"arr = 1\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	pread(fix->fd, fix->output, fix->sz, 0);
+	__CHECK_STR("Can't set arr. Only ints and enums are supported", "arr = 1");
+
+	SYS_FAIL(out,
+		 "%s set_global_vars.bpf.o -G \"struct1[0].struct2.u.var_u8[2]=1\" -vl2 2> %s",
+		 fix->veristat, fix->tmpfile);
+
+	pread(fix->fd, fix->output, fix->sz, 0);
+	__CHECK_STR("Can't resolve field u for non-composite type", "struct1[0].struct2.u.var_u8[2]=1");
+
+out:
+	teardown_fixture(fix);
+}
+
+void test_veristat(void)
+{
+	if (test__start_subtest("set_global_vars_succeeds"))
+		test_set_global_vars_succeeds();
+
+	if (test__start_subtest("set_global_vars_out_of_range"))
+		test_set_global_vars_out_of_range();
+
+	if (test__start_subtest("set_global_vars_from_file_succeeds"))
+		test_set_global_vars_from_file_succeeds();
+
+	if (test__start_subtest("test_unsupported_ptr_array_type"))
+		test_unsupported_ptr_array_type();
+
+	if (test__start_subtest("test_array_out_of_bounds"))
+		test_array_out_of_bounds();
+
+	if (test__start_subtest("test_array_index_not_found"))
+		test_array_index_not_found();
+
+	if (test__start_subtest("test_array_index_for_non_array"))
+		test_array_index_for_non_array();
+
+	if (test__start_subtest("test_no_array_index_for_array"))
+		test_no_array_index_for_array();
+
+}
+
+#undef __CHECK_STR
diff --git a/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c b/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c
new file mode 100644
index 000000000000..3e98a1665936
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_xdp_veth.c
@@ -0,0 +1,599 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Create 3 namespaces with 3 veth peers, and forward packets in-between using
+ * native XDP
+ *
+ * Network topology:
+ *  ----------        ----------       ----------
+ *  |  NS1   |        |  NS2   |       |  NS3   |
+ *  | veth11 |        | veth22 |       | veth33 |
+ *  ----|-----        -----|----       -----|----
+ *      |                  |                |
+ *  ----|------------------|----------------|----
+ *  | veth1              veth2            veth3 |
+ *  |                                           |
+ *  |                     NSO                   |
+ *  ---------------------------------------------
+ *
+ * Test cases:
+ *  - [test_xdp_veth_redirect] : ping veth33 from veth11
+ *
+ *    veth11             veth22              veth33
+ *  (XDP_PASS)          (XDP_TX)           (XDP_PASS)
+ *       |                  |                  |
+ *       |                  |                  |
+ *     veth1             veth2              veth3
+ * (XDP_REDIRECT)     (XDP_REDIRECT)     (XDP_REDIRECT)
+ *      ^ |                ^ |                ^ |
+ *      | |                | |                | |
+ *      | ------------------ ------------------ |
+ *      -----------------------------------------
+ *
+ * - [test_xdp_veth_broadcast_redirect]: broadcast from veth11
+ *     - IPv4 ping : BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS
+ *          -> echo request received by all except veth11
+ *     - IPv4 ping : BPF_F_BROADCAST
+ *          -> echo request received by all veth
+ * - [test_xdp_veth_egress]:
+ *     - all src mac should be the magic mac
+ *
+ *    veth11             veth22              veth33
+ *  (XDP_PASS)         (XDP_PASS)          (XDP_PASS)
+ *       |                  |                  |
+ *       |                  |                  |
+ *     veth1		  veth2              veth3
+ * (XDP_REDIRECT)     (XDP_REDIRECT)     (XDP_REDIRECT)
+ *      |                   ^                  ^
+ *      |                   |                  |
+ *      ----------------------------------------
+ *
+ */
+
+#define _GNU_SOURCE
+#include <net/if.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "xdp_dummy.skel.h"
+#include "xdp_redirect_map.skel.h"
+#include "xdp_redirect_multi_kern.skel.h"
+#include "xdp_tx.skel.h"
+#include <uapi/linux/if_link.h>
+
+#define VETH_PAIRS_COUNT	3
+#define VETH_NAME_MAX_LEN	32
+#define IP_MAX_LEN		16
+#define IP_SRC				"10.1.1.11"
+#define IP_DST				"10.1.1.33"
+#define IP_NEIGH			"10.1.1.253"
+#define PROG_NAME_MAX_LEN	128
+#define NS_NAME_MAX_LEN		32
+
+struct veth_configuration {
+	char local_veth[VETH_NAME_MAX_LEN]; /* Interface in main namespace */
+	char remote_veth[VETH_NAME_MAX_LEN]; /* Peer interface in dedicated namespace*/
+	char namespace[NS_NAME_MAX_LEN]; /* Namespace for the remote veth */
+	int next_veth; /* Local interface to redirect traffic to */
+	char remote_addr[IP_MAX_LEN]; /* IP address of the remote veth */
+};
+
+struct net_configuration {
+	char ns0_name[NS_NAME_MAX_LEN];
+	struct veth_configuration veth_cfg[VETH_PAIRS_COUNT];
+};
+
+static const struct net_configuration default_config = {
+	.ns0_name = "ns0-",
+	{
+		{
+			.local_veth = "veth1-",
+			.remote_veth = "veth11",
+			.next_veth = 1,
+			.remote_addr = IP_SRC,
+			.namespace = "ns-veth11-"
+		},
+		{
+			.local_veth = "veth2-",
+			.remote_veth = "veth22",
+			.next_veth = 2,
+			.remote_addr = "",
+			.namespace = "ns-veth22-"
+		},
+		{
+			.local_veth = "veth3-",
+			.remote_veth = "veth33",
+			.next_veth = 0,
+			.remote_addr = IP_DST,
+			.namespace = "ns-veth33-"
+		}
+	}
+};
+
+struct prog_configuration {
+	char local_name[PROG_NAME_MAX_LEN]; /* BPF prog to attach to local_veth */
+	char remote_name[PROG_NAME_MAX_LEN]; /* BPF prog to attach to remote_veth */
+	u32 local_flags; /* XDP flags to use on local_veth */
+	u32 remote_flags; /* XDP flags to use on remote_veth */
+};
+
+static int attach_programs_to_veth_pair(struct bpf_object **objs, size_t nb_obj,
+					struct net_configuration *net_config,
+					struct prog_configuration *prog, int index)
+{
+	struct bpf_program *local_prog, *remote_prog;
+	struct nstoken *nstoken;
+	int interface, ret, i;
+
+	for (i = 0; i < nb_obj; i++) {
+		local_prog = bpf_object__find_program_by_name(objs[i], prog[index].local_name);
+		if (local_prog)
+			break;
+	}
+	if (!ASSERT_OK_PTR(local_prog, "find local program"))
+		return -1;
+
+	for (i = 0; i < nb_obj; i++) {
+		remote_prog = bpf_object__find_program_by_name(objs[i], prog[index].remote_name);
+		if (remote_prog)
+			break;
+	}
+	if (!ASSERT_OK_PTR(remote_prog, "find remote program"))
+		return -1;
+
+	interface = if_nametoindex(net_config->veth_cfg[index].local_veth);
+	if (!ASSERT_NEQ(interface, 0, "non zero interface index"))
+		return -1;
+
+	ret = bpf_xdp_attach(interface, bpf_program__fd(local_prog),
+			     prog[index].local_flags, NULL);
+	if (!ASSERT_OK(ret, "attach xdp program to local veth"))
+		return -1;
+
+	nstoken = open_netns(net_config->veth_cfg[index].namespace);
+	if (!ASSERT_OK_PTR(nstoken, "switch to remote veth namespace"))
+		return -1;
+
+	interface = if_nametoindex(net_config->veth_cfg[index].remote_veth);
+	if (!ASSERT_NEQ(interface, 0, "non zero interface index")) {
+		close_netns(nstoken);
+		return -1;
+	}
+
+	ret = bpf_xdp_attach(interface, bpf_program__fd(remote_prog),
+			     prog[index].remote_flags, NULL);
+	if (!ASSERT_OK(ret, "attach xdp program to remote veth")) {
+		close_netns(nstoken);
+		return -1;
+	}
+
+	close_netns(nstoken);
+	return 0;
+}
+
+static int create_network(struct net_configuration *net_config)
+{
+	struct nstoken *nstoken = NULL;
+	int i, err;
+
+	memcpy(net_config, &default_config, sizeof(struct net_configuration));
+
+	/* Create unique namespaces */
+	err = append_tid(net_config->ns0_name, NS_NAME_MAX_LEN);
+	if (!ASSERT_OK(err, "append TID to ns0 name"))
+		goto fail;
+	SYS(fail, "ip netns add %s", net_config->ns0_name);
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		err = append_tid(net_config->veth_cfg[i].namespace, NS_NAME_MAX_LEN);
+		if (!ASSERT_OK(err, "append TID to ns name"))
+			goto fail;
+		SYS(fail, "ip netns add %s", net_config->veth_cfg[i].namespace);
+	}
+
+	/* Create interfaces */
+	nstoken = open_netns(net_config->ns0_name);
+	if (!nstoken)
+		goto fail;
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		SYS(fail, "ip link add %s type veth peer name %s netns %s",
+		    net_config->veth_cfg[i].local_veth, net_config->veth_cfg[i].remote_veth,
+		    net_config->veth_cfg[i].namespace);
+		SYS(fail, "ip link set dev %s up", net_config->veth_cfg[i].local_veth);
+		if (net_config->veth_cfg[i].remote_addr[0])
+			SYS(fail, "ip -n %s addr add %s/24 dev %s",
+			    net_config->veth_cfg[i].namespace,
+			    net_config->veth_cfg[i].remote_addr,
+			    net_config->veth_cfg[i].remote_veth);
+		SYS(fail, "ip -n %s link set dev %s up", net_config->veth_cfg[i].namespace,
+		    net_config->veth_cfg[i].remote_veth);
+	}
+
+	close_netns(nstoken);
+	return 0;
+
+fail:
+	close_netns(nstoken);
+	return -1;
+}
+
+static void cleanup_network(struct net_configuration *net_config)
+{
+	int i;
+
+	SYS_NOFAIL("ip netns del %s", net_config->ns0_name);
+	for (i = 0; i < VETH_PAIRS_COUNT; i++)
+		SYS_NOFAIL("ip netns del %s", net_config->veth_cfg[i].namespace);
+}
+
+#define VETH_REDIRECT_SKEL_NB	3
+static void xdp_veth_redirect(u32 flags)
+{
+	struct prog_configuration ping_config[VETH_PAIRS_COUNT] = {
+		{
+			.local_name = "xdp_redirect_map_0",
+			.remote_name = "xdp_dummy_prog",
+			.local_flags = flags,
+			.remote_flags = flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_1",
+			.remote_name = "xdp_tx",
+			.local_flags = flags,
+			.remote_flags = flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_2",
+			.remote_name = "xdp_dummy_prog",
+			.local_flags = flags,
+			.remote_flags = flags,
+		}
+	};
+	struct bpf_object *bpf_objs[VETH_REDIRECT_SKEL_NB];
+	struct xdp_redirect_map *xdp_redirect_map;
+	struct net_configuration net_config;
+	struct nstoken *nstoken = NULL;
+	struct xdp_dummy *xdp_dummy;
+	struct xdp_tx *xdp_tx;
+	int map_fd;
+	int i;
+
+	xdp_dummy = xdp_dummy__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_dummy, "xdp_dummy__open_and_load"))
+		return;
+
+	xdp_tx = xdp_tx__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_tx, "xdp_tx__open_and_load"))
+		goto destroy_xdp_dummy;
+
+	xdp_redirect_map = xdp_redirect_map__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_redirect_map, "xdp_redirect_map__open_and_load"))
+		goto destroy_xdp_tx;
+
+	if (!ASSERT_OK(create_network(&net_config), "create network"))
+		goto destroy_xdp_redirect_map;
+
+	/* Then configure the redirect map and attach programs to interfaces */
+	map_fd = bpf_map__fd(xdp_redirect_map->maps.tx_port);
+	if (!ASSERT_OK_FD(map_fd, "open redirect map"))
+		goto destroy_xdp_redirect_map;
+
+	bpf_objs[0] = xdp_dummy->obj;
+	bpf_objs[1] = xdp_tx->obj;
+	bpf_objs[2] = xdp_redirect_map->obj;
+
+	nstoken = open_netns(net_config.ns0_name);
+	if (!ASSERT_OK_PTR(nstoken, "open NS0"))
+		goto destroy_xdp_redirect_map;
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		int next_veth = net_config.veth_cfg[i].next_veth;
+		int interface_id;
+		int err;
+
+		interface_id = if_nametoindex(net_config.veth_cfg[next_veth].local_veth);
+		if (!ASSERT_NEQ(interface_id, 0, "non zero interface index"))
+			goto destroy_xdp_redirect_map;
+		err = bpf_map_update_elem(map_fd, &i, &interface_id, BPF_ANY);
+		if (!ASSERT_OK(err, "configure interface redirection through map"))
+			goto destroy_xdp_redirect_map;
+		if (attach_programs_to_veth_pair(bpf_objs, VETH_REDIRECT_SKEL_NB,
+						 &net_config, ping_config, i))
+			goto destroy_xdp_redirect_map;
+	}
+
+	/* Test: if all interfaces are properly configured, we must be able to ping
+	 * veth33 from veth11
+	 */
+	ASSERT_OK(SYS_NOFAIL("ip netns exec %s ping -c 1 -W 1 %s > /dev/null",
+			     net_config.veth_cfg[0].namespace, IP_DST), "ping");
+
+destroy_xdp_redirect_map:
+	close_netns(nstoken);
+	xdp_redirect_map__destroy(xdp_redirect_map);
+destroy_xdp_tx:
+	xdp_tx__destroy(xdp_tx);
+destroy_xdp_dummy:
+	xdp_dummy__destroy(xdp_dummy);
+
+	cleanup_network(&net_config);
+}
+
+#define BROADCAST_REDIRECT_SKEL_NB	2
+static void xdp_veth_broadcast_redirect(u32 attach_flags, u64 redirect_flags)
+{
+	struct prog_configuration prog_cfg[VETH_PAIRS_COUNT] = {
+		{
+			.local_name = "xdp_redirect_map_multi_prog",
+			.remote_name = "xdp_count_0",
+			.local_flags = attach_flags,
+			.remote_flags = attach_flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_multi_prog",
+			.remote_name = "xdp_count_1",
+			.local_flags = attach_flags,
+			.remote_flags = attach_flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_multi_prog",
+			.remote_name = "xdp_count_2",
+			.local_flags = attach_flags,
+			.remote_flags = attach_flags,
+		}
+	};
+	struct bpf_object *bpf_objs[BROADCAST_REDIRECT_SKEL_NB];
+	struct xdp_redirect_multi_kern *xdp_redirect_multi_kern;
+	struct xdp_redirect_map *xdp_redirect_map;
+	struct bpf_devmap_val devmap_val = {};
+	struct net_configuration net_config;
+	struct nstoken *nstoken = NULL;
+	u16 protocol = ETH_P_IP;
+	int group_map;
+	int flags_map;
+	int cnt_map;
+	u64 cnt = 0;
+	int i, err;
+
+	xdp_redirect_multi_kern = xdp_redirect_multi_kern__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_redirect_multi_kern, "xdp_redirect_multi_kern__open_and_load"))
+		return;
+
+	xdp_redirect_map = xdp_redirect_map__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_redirect_map, "xdp_redirect_map__open_and_load"))
+		goto destroy_xdp_redirect_multi_kern;
+
+	if (!ASSERT_OK(create_network(&net_config), "create network"))
+		goto destroy_xdp_redirect_map;
+
+	group_map = bpf_map__fd(xdp_redirect_multi_kern->maps.map_all);
+	if (!ASSERT_OK_FD(group_map, "open map_all"))
+		goto destroy_xdp_redirect_map;
+
+	flags_map = bpf_map__fd(xdp_redirect_multi_kern->maps.redirect_flags);
+	if (!ASSERT_OK_FD(group_map, "open map_all"))
+		goto destroy_xdp_redirect_map;
+
+	err = bpf_map_update_elem(flags_map, &protocol, &redirect_flags, BPF_NOEXIST);
+	if (!ASSERT_OK(err, "init IP count"))
+		goto destroy_xdp_redirect_map;
+
+	cnt_map = bpf_map__fd(xdp_redirect_map->maps.rxcnt);
+	if (!ASSERT_OK_FD(cnt_map, "open rxcnt map"))
+		goto destroy_xdp_redirect_map;
+
+	bpf_objs[0] = xdp_redirect_multi_kern->obj;
+	bpf_objs[1] = xdp_redirect_map->obj;
+
+	nstoken = open_netns(net_config.ns0_name);
+	if (!ASSERT_OK_PTR(nstoken, "open NS0"))
+		goto destroy_xdp_redirect_map;
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		int ifindex = if_nametoindex(net_config.veth_cfg[i].local_veth);
+
+		if (attach_programs_to_veth_pair(bpf_objs, BROADCAST_REDIRECT_SKEL_NB,
+						 &net_config, prog_cfg, i))
+			goto destroy_xdp_redirect_map;
+
+		SYS(destroy_xdp_redirect_map,
+		    "ip -n %s neigh add %s lladdr 00:00:00:00:00:01 dev %s",
+		    net_config.veth_cfg[i].namespace, IP_NEIGH, net_config.veth_cfg[i].remote_veth);
+
+		devmap_val.ifindex = ifindex;
+		err = bpf_map_update_elem(group_map, &ifindex, &devmap_val, 0);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto destroy_xdp_redirect_map;
+
+	}
+
+	SYS_NOFAIL("ip netns exec %s ping %s -i 0.1 -c 4 -W1 > /dev/null ",
+		    net_config.veth_cfg[0].namespace, IP_NEIGH);
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		err =  bpf_map_lookup_elem(cnt_map, &i, &cnt);
+		if (!ASSERT_OK(err, "get IP cnt"))
+			goto destroy_xdp_redirect_map;
+
+		if (redirect_flags & BPF_F_EXCLUDE_INGRESS)
+			/* veth11 shouldn't receive the ICMP requests;
+			 * others should
+			 */
+			ASSERT_EQ(cnt, i ? 4 : 0, "compare IP cnt");
+		else
+			/* All remote veth should receive the ICMP requests */
+			ASSERT_EQ(cnt, 4, "compare IP cnt");
+	}
+
+destroy_xdp_redirect_map:
+	close_netns(nstoken);
+	xdp_redirect_map__destroy(xdp_redirect_map);
+destroy_xdp_redirect_multi_kern:
+	xdp_redirect_multi_kern__destroy(xdp_redirect_multi_kern);
+
+	cleanup_network(&net_config);
+}
+
+#define VETH_EGRESS_SKEL_NB	3
+static void xdp_veth_egress(u32 flags)
+{
+	struct prog_configuration prog_cfg[VETH_PAIRS_COUNT] = {
+		{
+			.local_name = "xdp_redirect_map_all_prog",
+			.remote_name = "xdp_dummy_prog",
+			.local_flags = flags,
+			.remote_flags = flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_all_prog",
+			.remote_name = "store_mac_1",
+			.local_flags = flags,
+			.remote_flags = flags,
+		},
+		{
+			.local_name = "xdp_redirect_map_all_prog",
+			.remote_name = "store_mac_2",
+			.local_flags = flags,
+			.remote_flags = flags,
+		}
+	};
+	const char magic_mac[6] = { 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF};
+	struct xdp_redirect_multi_kern *xdp_redirect_multi_kern;
+	struct bpf_object *bpf_objs[VETH_EGRESS_SKEL_NB];
+	struct xdp_redirect_map *xdp_redirect_map;
+	struct bpf_devmap_val devmap_val = {};
+	struct net_configuration net_config;
+	int mac_map, egress_map, res_map;
+	struct nstoken *nstoken = NULL;
+	struct xdp_dummy *xdp_dummy;
+	int err;
+	int i;
+
+	xdp_dummy = xdp_dummy__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_dummy, "xdp_dummy__open_and_load"))
+		return;
+
+	xdp_redirect_multi_kern = xdp_redirect_multi_kern__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_redirect_multi_kern, "xdp_redirect_multi_kern__open_and_load"))
+		goto destroy_xdp_dummy;
+
+	xdp_redirect_map = xdp_redirect_map__open_and_load();
+	if (!ASSERT_OK_PTR(xdp_redirect_map, "xdp_redirect_map__open_and_load"))
+		goto destroy_xdp_redirect_multi_kern;
+
+	if (!ASSERT_OK(create_network(&net_config), "create network"))
+		goto destroy_xdp_redirect_map;
+
+	mac_map = bpf_map__fd(xdp_redirect_multi_kern->maps.mac_map);
+	if (!ASSERT_OK_FD(mac_map, "open mac_map"))
+		goto destroy_xdp_redirect_map;
+
+	egress_map = bpf_map__fd(xdp_redirect_multi_kern->maps.map_egress);
+	if (!ASSERT_OK_FD(egress_map, "open map_egress"))
+		goto destroy_xdp_redirect_map;
+
+	devmap_val.bpf_prog.fd = bpf_program__fd(xdp_redirect_multi_kern->progs.xdp_devmap_prog);
+
+	bpf_objs[0] = xdp_dummy->obj;
+	bpf_objs[1] = xdp_redirect_multi_kern->obj;
+	bpf_objs[2] = xdp_redirect_map->obj;
+
+	nstoken = open_netns(net_config.ns0_name);
+	if (!ASSERT_OK_PTR(nstoken, "open NS0"))
+		goto destroy_xdp_redirect_map;
+
+	for (i = 0; i < VETH_PAIRS_COUNT; i++) {
+		int ifindex = if_nametoindex(net_config.veth_cfg[i].local_veth);
+
+		SYS(destroy_xdp_redirect_map,
+		    "ip -n %s neigh add %s lladdr 00:00:00:00:00:01 dev %s",
+		    net_config.veth_cfg[i].namespace, IP_NEIGH, net_config.veth_cfg[i].remote_veth);
+
+		if (attach_programs_to_veth_pair(bpf_objs, VETH_REDIRECT_SKEL_NB,
+						 &net_config, prog_cfg, i))
+			goto destroy_xdp_redirect_map;
+
+		err = bpf_map_update_elem(mac_map, &ifindex, magic_mac, 0);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto destroy_xdp_redirect_map;
+
+		devmap_val.ifindex = ifindex;
+		err = bpf_map_update_elem(egress_map, &ifindex, &devmap_val, 0);
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto destroy_xdp_redirect_map;
+	}
+
+	SYS_NOFAIL("ip netns exec %s ping %s -i 0.1 -c 4 -W1 > /dev/null ",
+		    net_config.veth_cfg[0].namespace, IP_NEIGH);
+
+	res_map = bpf_map__fd(xdp_redirect_map->maps.rx_mac);
+	if (!ASSERT_OK_FD(res_map, "open rx_map"))
+		goto destroy_xdp_redirect_map;
+
+	for (i = 0; i < 2; i++) {
+		u32 key = i;
+		u64 res;
+
+		err = bpf_map_lookup_elem(res_map, &key, &res);
+		if (!ASSERT_OK(err, "get MAC res"))
+			goto destroy_xdp_redirect_map;
+
+		ASSERT_STRNEQ((const char *)&res, magic_mac, ETH_ALEN, "compare mac");
+	}
+
+destroy_xdp_redirect_map:
+	close_netns(nstoken);
+	xdp_redirect_map__destroy(xdp_redirect_map);
+destroy_xdp_redirect_multi_kern:
+	xdp_redirect_multi_kern__destroy(xdp_redirect_multi_kern);
+destroy_xdp_dummy:
+	xdp_dummy__destroy(xdp_dummy);
+
+	cleanup_network(&net_config);
+}
+
+void test_xdp_veth_redirect(void)
+{
+	if (test__start_subtest("0"))
+		xdp_veth_redirect(0);
+
+	if (test__start_subtest("DRV_MODE"))
+		xdp_veth_redirect(XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("SKB_MODE"))
+		xdp_veth_redirect(XDP_FLAGS_SKB_MODE);
+}
+
+void test_xdp_veth_broadcast_redirect(void)
+{
+	if (test__start_subtest("0/BROADCAST"))
+		xdp_veth_broadcast_redirect(0, BPF_F_BROADCAST);
+
+	if (test__start_subtest("0/(BROADCAST | EXCLUDE_INGRESS)"))
+		xdp_veth_broadcast_redirect(0, BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+
+	if (test__start_subtest("DRV_MODE/BROADCAST"))
+		xdp_veth_broadcast_redirect(XDP_FLAGS_DRV_MODE, BPF_F_BROADCAST);
+
+	if (test__start_subtest("DRV_MODE/(BROADCAST | EXCLUDE_INGRESS)"))
+		xdp_veth_broadcast_redirect(XDP_FLAGS_DRV_MODE,
+					    BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+
+	if (test__start_subtest("SKB_MODE/BROADCAST"))
+		xdp_veth_broadcast_redirect(XDP_FLAGS_SKB_MODE, BPF_F_BROADCAST);
+
+	if (test__start_subtest("SKB_MODE/(BROADCAST | EXCLUDE_INGRESS)"))
+		xdp_veth_broadcast_redirect(XDP_FLAGS_SKB_MODE,
+					    BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+}
+
+void test_xdp_veth_egress(void)
+{
+	if (test__start_subtest("0/egress"))
+		xdp_veth_egress(0);
+
+	if (test__start_subtest("DRV_MODE/egress"))
+		xdp_veth_egress(XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("SKB_MODE/egress"))
+		xdp_veth_egress(XDP_FLAGS_SKB_MODE);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_xsk.c b/tools/testing/selftests/bpf/prog_tests/test_xsk.c
new file mode 100644
index 000000000000..5af28f359cfd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_xsk.c
@@ -0,0 +1,2596 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <bpf/bpf.h>
+#include <errno.h>
+#include <linux/bitmap.h>
+#include <linux/if_link.h>
+#include <linux/mman.h>
+#include <linux/netdev.h>
+#include <poll.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "network_helpers.h"
+#include "test_xsk.h"
+#include "xsk_xdp_common.h"
+#include "xsk_xdp_progs.skel.h"
+
+#define DEFAULT_BATCH_SIZE		64
+#define MIN_PKT_SIZE			64
+#define MAX_ETH_JUMBO_SIZE		9000
+#define MAX_INTERFACES			2
+#define MAX_TEARDOWN_ITER		10
+#define MAX_TX_BUDGET_DEFAULT		32
+#define PKT_DUMP_NB_TO_PRINT		16
+/* Just to align the data in the packet */
+#define PKT_HDR_SIZE			(sizeof(struct ethhdr) + 2)
+#define POLL_TMOUT			1000
+#define THREAD_TMOUT			3
+#define UMEM_HEADROOM_TEST_SIZE		128
+#define XSK_DESC__INVALID_OPTION	(0xffff)
+#define XSK_UMEM__INVALID_FRAME_SIZE	(MAX_ETH_JUMBO_SIZE + 1)
+#define XSK_UMEM__LARGE_FRAME_SIZE	(3 * 1024)
+#define XSK_UMEM__MAX_FRAME_SIZE	(4 * 1024)
+
+static const u8 g_mac[ETH_ALEN] = {0x55, 0x44, 0x33, 0x22, 0x11, 0x00};
+
+bool opt_verbose;
+pthread_barrier_t barr;
+pthread_mutex_t pacing_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+int pkts_in_flight;
+
+/* The payload is a word consisting of a packet sequence number in the upper
+ * 16-bits and a intra packet data sequence number in the lower 16 bits. So the 3rd packet's
+ * 5th word of data will contain the number (2<<16) | 4 as they are numbered from 0.
+ */
+static void write_payload(void *dest, u32 pkt_nb, u32 start, u32 size)
+{
+	u32 *ptr = (u32 *)dest, i;
+
+	start /= sizeof(*ptr);
+	size /= sizeof(*ptr);
+	for (i = 0; i < size; i++)
+		ptr[i] = htonl(pkt_nb << 16 | (i + start));
+}
+
+static void gen_eth_hdr(struct xsk_socket_info *xsk, struct ethhdr *eth_hdr)
+{
+	memcpy(eth_hdr->h_dest, xsk->dst_mac, ETH_ALEN);
+	memcpy(eth_hdr->h_source, xsk->src_mac, ETH_ALEN);
+	eth_hdr->h_proto = htons(ETH_P_LOOPBACK);
+}
+
+static bool is_umem_valid(struct ifobject *ifobj)
+{
+	return !!ifobj->umem->umem;
+}
+
+static u32 mode_to_xdp_flags(enum test_mode mode)
+{
+	return (mode == TEST_MODE_SKB) ? XDP_FLAGS_SKB_MODE : XDP_FLAGS_DRV_MODE;
+}
+
+static u64 umem_size(struct xsk_umem_info *umem)
+{
+	return umem->num_frames * umem->frame_size;
+}
+
+int xsk_configure_umem(struct ifobject *ifobj, struct xsk_umem_info *umem, void *buffer,
+			      u64 size)
+{
+	struct xsk_umem_config cfg = {
+		.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
+		.frame_size = umem->frame_size,
+		.frame_headroom = umem->frame_headroom,
+		.flags = XSK_UMEM__DEFAULT_FLAGS
+	};
+	int ret;
+
+	if (umem->fill_size)
+		cfg.fill_size = umem->fill_size;
+
+	if (umem->comp_size)
+		cfg.comp_size = umem->comp_size;
+
+	if (umem->unaligned_mode)
+		cfg.flags |= XDP_UMEM_UNALIGNED_CHUNK_FLAG;
+
+	ret = xsk_umem__create(&umem->umem, buffer, size,
+			       &umem->fq, &umem->cq, &cfg);
+	if (ret)
+		return ret;
+
+	umem->buffer = buffer;
+	if (ifobj->shared_umem && ifobj->rx_on) {
+		umem->base_addr = umem_size(umem);
+		umem->next_buffer = umem_size(umem);
+	}
+
+	return 0;
+}
+
+static u64 umem_alloc_buffer(struct xsk_umem_info *umem)
+{
+	u64 addr;
+
+	addr = umem->next_buffer;
+	umem->next_buffer += umem->frame_size;
+	if (umem->next_buffer >= umem->base_addr + umem_size(umem))
+		umem->next_buffer = umem->base_addr;
+
+	return addr;
+}
+
+static void umem_reset_alloc(struct xsk_umem_info *umem)
+{
+	umem->next_buffer = 0;
+}
+
+static int enable_busy_poll(struct xsk_socket_info *xsk)
+{
+	int sock_opt;
+
+	sock_opt = 1;
+	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_PREFER_BUSY_POLL,
+		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
+		return -errno;
+
+	sock_opt = 20;
+	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL,
+		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
+		return -errno;
+
+	sock_opt = xsk->batch_size;
+	if (setsockopt(xsk_socket__fd(xsk->xsk), SOL_SOCKET, SO_BUSY_POLL_BUDGET,
+		       (void *)&sock_opt, sizeof(sock_opt)) < 0)
+		return -errno;
+
+	return 0;
+}
+
+int xsk_configure_socket(struct xsk_socket_info *xsk, struct xsk_umem_info *umem,
+				  struct ifobject *ifobject, bool shared)
+{
+	struct xsk_socket_config cfg = {};
+	struct xsk_ring_cons *rxr;
+	struct xsk_ring_prod *txr;
+
+	xsk->umem = umem;
+	cfg.rx_size = xsk->rxqsize;
+	cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+	cfg.bind_flags = ifobject->bind_flags;
+	if (shared)
+		cfg.bind_flags |= XDP_SHARED_UMEM;
+	if (ifobject->mtu > MAX_ETH_PKT_SIZE)
+		cfg.bind_flags |= XDP_USE_SG;
+	if (umem->comp_size)
+		cfg.tx_size = umem->comp_size;
+	if (umem->fill_size)
+		cfg.rx_size = umem->fill_size;
+
+	txr = ifobject->tx_on ? &xsk->tx : NULL;
+	rxr = ifobject->rx_on ? &xsk->rx : NULL;
+	return xsk_socket__create(&xsk->xsk, ifobject->ifindex, 0, umem->umem, rxr, txr, &cfg);
+}
+
+#define MAX_SKB_FRAGS_PATH "/proc/sys/net/core/max_skb_frags"
+static unsigned int get_max_skb_frags(void)
+{
+	unsigned int max_skb_frags = 0;
+	FILE *file;
+
+	file = fopen(MAX_SKB_FRAGS_PATH, "r");
+	if (!file) {
+		ksft_print_msg("Error opening %s\n", MAX_SKB_FRAGS_PATH);
+		return 0;
+	}
+
+	if (fscanf(file, "%u", &max_skb_frags) != 1)
+		ksft_print_msg("Error reading %s\n", MAX_SKB_FRAGS_PATH);
+
+	fclose(file);
+	return max_skb_frags;
+}
+
+static int set_ring_size(struct ifobject *ifobj)
+{
+	int ret;
+	u32 ctr = 0;
+
+	while (ctr++ < SOCK_RECONF_CTR) {
+		ret = set_hw_ring_size(ifobj->ifname, &ifobj->ring);
+		if (!ret)
+			break;
+
+		/* Retry if it fails */
+		if (ctr >= SOCK_RECONF_CTR || errno != EBUSY)
+			return -errno;
+
+		usleep(USLEEP_MAX);
+	}
+
+	return ret;
+}
+
+int hw_ring_size_reset(struct ifobject *ifobj)
+{
+	ifobj->ring.tx_pending = ifobj->set_ring.default_tx;
+	ifobj->ring.rx_pending = ifobj->set_ring.default_rx;
+	return set_ring_size(ifobj);
+}
+
+static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
+			     struct ifobject *ifobj_rx)
+{
+	u32 i, j;
+
+	for (i = 0; i < MAX_INTERFACES; i++) {
+		struct ifobject *ifobj = i ? ifobj_rx : ifobj_tx;
+
+		ifobj->xsk = &ifobj->xsk_arr[0];
+		ifobj->use_poll = false;
+		ifobj->use_fill_ring = true;
+		ifobj->release_rx = true;
+		ifobj->validation_func = NULL;
+		ifobj->use_metadata = false;
+
+		if (i == 0) {
+			ifobj->rx_on = false;
+			ifobj->tx_on = true;
+		} else {
+			ifobj->rx_on = true;
+			ifobj->tx_on = false;
+		}
+
+		memset(ifobj->umem, 0, sizeof(*ifobj->umem));
+		ifobj->umem->num_frames = DEFAULT_UMEM_BUFFERS;
+		ifobj->umem->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
+
+		for (j = 0; j < MAX_SOCKETS; j++) {
+			memset(&ifobj->xsk_arr[j], 0, sizeof(ifobj->xsk_arr[j]));
+			ifobj->xsk_arr[j].rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+			ifobj->xsk_arr[j].batch_size = DEFAULT_BATCH_SIZE;
+			if (i == 0)
+				ifobj->xsk_arr[j].pkt_stream = test->tx_pkt_stream_default;
+			else
+				ifobj->xsk_arr[j].pkt_stream = test->rx_pkt_stream_default;
+
+			memcpy(ifobj->xsk_arr[j].src_mac, g_mac, ETH_ALEN);
+			memcpy(ifobj->xsk_arr[j].dst_mac, g_mac, ETH_ALEN);
+			ifobj->xsk_arr[j].src_mac[5] += ((j * 2) + 0);
+			ifobj->xsk_arr[j].dst_mac[5] += ((j * 2) + 1);
+		}
+	}
+
+	if (ifobj_tx->hw_ring_size_supp)
+		hw_ring_size_reset(ifobj_tx);
+
+	test->ifobj_tx = ifobj_tx;
+	test->ifobj_rx = ifobj_rx;
+	test->current_step = 0;
+	test->total_steps = 1;
+	test->nb_sockets = 1;
+	test->fail = false;
+	test->set_ring = false;
+	test->adjust_tail = false;
+	test->adjust_tail_support = false;
+	test->mtu = MAX_ETH_PKT_SIZE;
+	test->xdp_prog_rx = ifobj_rx->xdp_progs->progs.xsk_def_prog;
+	test->xskmap_rx = ifobj_rx->xdp_progs->maps.xsk;
+	test->xdp_prog_tx = ifobj_tx->xdp_progs->progs.xsk_def_prog;
+	test->xskmap_tx = ifobj_tx->xdp_progs->maps.xsk;
+}
+
+void test_init(struct test_spec *test, struct ifobject *ifobj_tx,
+			   struct ifobject *ifobj_rx, enum test_mode mode,
+			   const struct test_spec *test_to_run)
+{
+	struct pkt_stream *tx_pkt_stream;
+	struct pkt_stream *rx_pkt_stream;
+	u32 i;
+
+	tx_pkt_stream = test->tx_pkt_stream_default;
+	rx_pkt_stream = test->rx_pkt_stream_default;
+	memset(test, 0, sizeof(*test));
+	test->tx_pkt_stream_default = tx_pkt_stream;
+	test->rx_pkt_stream_default = rx_pkt_stream;
+
+	for (i = 0; i < MAX_INTERFACES; i++) {
+		struct ifobject *ifobj = i ? ifobj_rx : ifobj_tx;
+
+		ifobj->bind_flags = XDP_USE_NEED_WAKEUP;
+		if (mode == TEST_MODE_ZC)
+			ifobj->bind_flags |= XDP_ZEROCOPY;
+		else
+			ifobj->bind_flags |= XDP_COPY;
+	}
+
+	memcpy(test->name, test_to_run->name, MAX_TEST_NAME_SIZE);
+	test->test_func = test_to_run->test_func;
+	test->mode = mode;
+	__test_spec_init(test, ifobj_tx, ifobj_rx);
+}
+
+static void test_spec_reset(struct test_spec *test)
+{
+	__test_spec_init(test, test->ifobj_tx, test->ifobj_rx);
+}
+
+static void test_spec_set_xdp_prog(struct test_spec *test, struct bpf_program *xdp_prog_rx,
+				   struct bpf_program *xdp_prog_tx, struct bpf_map *xskmap_rx,
+				   struct bpf_map *xskmap_tx)
+{
+	test->xdp_prog_rx = xdp_prog_rx;
+	test->xdp_prog_tx = xdp_prog_tx;
+	test->xskmap_rx = xskmap_rx;
+	test->xskmap_tx = xskmap_tx;
+}
+
+static int test_spec_set_mtu(struct test_spec *test, int mtu)
+{
+	int err;
+
+	if (test->ifobj_rx->mtu != mtu) {
+		err = xsk_set_mtu(test->ifobj_rx->ifindex, mtu);
+		if (err)
+			return err;
+		test->ifobj_rx->mtu = mtu;
+	}
+	if (test->ifobj_tx->mtu != mtu) {
+		err = xsk_set_mtu(test->ifobj_tx->ifindex, mtu);
+		if (err)
+			return err;
+		test->ifobj_tx->mtu = mtu;
+	}
+
+	return 0;
+}
+
+void pkt_stream_reset(struct pkt_stream *pkt_stream)
+{
+	if (pkt_stream) {
+		pkt_stream->current_pkt_nb = 0;
+		pkt_stream->nb_rx_pkts = 0;
+	}
+}
+
+static struct pkt *pkt_stream_get_next_tx_pkt(struct pkt_stream *pkt_stream)
+{
+	if (pkt_stream->current_pkt_nb >= pkt_stream->nb_pkts)
+		return NULL;
+
+	return &pkt_stream->pkts[pkt_stream->current_pkt_nb++];
+}
+
+static struct pkt *pkt_stream_get_next_rx_pkt(struct pkt_stream *pkt_stream, u32 *pkts_sent)
+{
+	while (pkt_stream->current_pkt_nb < pkt_stream->nb_pkts) {
+		(*pkts_sent)++;
+		if (pkt_stream->pkts[pkt_stream->current_pkt_nb].valid)
+			return &pkt_stream->pkts[pkt_stream->current_pkt_nb++];
+		pkt_stream->current_pkt_nb++;
+	}
+	return NULL;
+}
+
+void pkt_stream_delete(struct pkt_stream *pkt_stream)
+{
+	free(pkt_stream->pkts);
+	free(pkt_stream);
+}
+
+void pkt_stream_restore_default(struct test_spec *test)
+{
+	struct pkt_stream *tx_pkt_stream = test->ifobj_tx->xsk->pkt_stream;
+	struct pkt_stream *rx_pkt_stream = test->ifobj_rx->xsk->pkt_stream;
+
+	if (tx_pkt_stream != test->tx_pkt_stream_default) {
+		pkt_stream_delete(test->ifobj_tx->xsk->pkt_stream);
+		test->ifobj_tx->xsk->pkt_stream = test->tx_pkt_stream_default;
+	}
+
+	if (rx_pkt_stream != test->rx_pkt_stream_default) {
+		pkt_stream_delete(test->ifobj_rx->xsk->pkt_stream);
+		test->ifobj_rx->xsk->pkt_stream = test->rx_pkt_stream_default;
+	}
+}
+
+static struct pkt_stream *__pkt_stream_alloc(u32 nb_pkts)
+{
+	struct pkt_stream *pkt_stream;
+
+	pkt_stream = calloc(1, sizeof(*pkt_stream));
+	if (!pkt_stream)
+		return NULL;
+
+	pkt_stream->pkts = calloc(nb_pkts, sizeof(*pkt_stream->pkts));
+	if (!pkt_stream->pkts) {
+		free(pkt_stream);
+		return NULL;
+	}
+
+	pkt_stream->nb_pkts = nb_pkts;
+	return pkt_stream;
+}
+
+static u32 pkt_nb_frags(u32 frame_size, struct pkt_stream *pkt_stream, struct pkt *pkt)
+{
+	u32 nb_frags = 1, next_frag;
+
+	if (!pkt)
+		return 1;
+
+	if (!pkt_stream->verbatim) {
+		if (!pkt->valid || !pkt->len)
+			return 1;
+		return ceil_u32(pkt->len, frame_size);
+	}
+
+	/* Search for the end of the packet in verbatim mode */
+	if (!pkt_continues(pkt->options))
+		return nb_frags;
+
+	next_frag = pkt_stream->current_pkt_nb;
+	pkt++;
+	while (next_frag++ < pkt_stream->nb_pkts) {
+		nb_frags++;
+		if (!pkt_continues(pkt->options) || !pkt->valid)
+			break;
+		pkt++;
+	}
+	return nb_frags;
+}
+
+static bool set_pkt_valid(int offset, u32 len)
+{
+	return len <= MAX_ETH_JUMBO_SIZE;
+}
+
+static void pkt_set(struct pkt_stream *pkt_stream, struct pkt *pkt, int offset, u32 len)
+{
+	pkt->offset = offset;
+	pkt->len = len;
+	pkt->valid = set_pkt_valid(offset, len);
+}
+
+static void pkt_stream_pkt_set(struct pkt_stream *pkt_stream, struct pkt *pkt, int offset, u32 len)
+{
+	bool prev_pkt_valid = pkt->valid;
+
+	pkt_set(pkt_stream, pkt, offset, len);
+	pkt_stream->nb_valid_entries += pkt->valid - prev_pkt_valid;
+}
+
+static u32 pkt_get_buffer_len(struct xsk_umem_info *umem, u32 len)
+{
+	return ceil_u32(len, umem->frame_size) * umem->frame_size;
+}
+
+static struct pkt_stream *__pkt_stream_generate(u32 nb_pkts, u32 pkt_len, u32 nb_start, u32 nb_off)
+{
+	struct pkt_stream *pkt_stream;
+	u32 i;
+
+	pkt_stream = __pkt_stream_alloc(nb_pkts);
+	if (!pkt_stream)
+		return NULL;
+
+	pkt_stream->nb_pkts = nb_pkts;
+	pkt_stream->max_pkt_len = pkt_len;
+	for (i = 0; i < nb_pkts; i++) {
+		struct pkt *pkt = &pkt_stream->pkts[i];
+
+		pkt_stream_pkt_set(pkt_stream, pkt, 0, pkt_len);
+		pkt->pkt_nb = nb_start + i * nb_off;
+	}
+
+	return pkt_stream;
+}
+
+struct pkt_stream *pkt_stream_generate(u32 nb_pkts, u32 pkt_len)
+{
+	return __pkt_stream_generate(nb_pkts, pkt_len, 0, 1);
+}
+
+static struct pkt_stream *pkt_stream_clone(struct pkt_stream *pkt_stream)
+{
+	return pkt_stream_generate(pkt_stream->nb_pkts, pkt_stream->pkts[0].len);
+}
+
+static int pkt_stream_replace_ifobject(struct ifobject *ifobj, u32 nb_pkts, u32 pkt_len)
+{
+	ifobj->xsk->pkt_stream = pkt_stream_generate(nb_pkts, pkt_len);
+
+	if (!ifobj->xsk->pkt_stream)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int pkt_stream_replace(struct test_spec *test, u32 nb_pkts, u32 pkt_len)
+{
+	int ret;
+
+	ret = pkt_stream_replace_ifobject(test->ifobj_tx, nb_pkts, pkt_len);
+	if (ret)
+		return ret;
+
+	return pkt_stream_replace_ifobject(test->ifobj_rx, nb_pkts, pkt_len);
+}
+
+static int __pkt_stream_replace_half(struct ifobject *ifobj, u32 pkt_len,
+				      int offset)
+{
+	struct pkt_stream *pkt_stream;
+	u32 i;
+
+	pkt_stream = pkt_stream_clone(ifobj->xsk->pkt_stream);
+	if (!pkt_stream)
+		return -ENOMEM;
+
+	for (i = 1; i < ifobj->xsk->pkt_stream->nb_pkts; i += 2)
+		pkt_stream_pkt_set(pkt_stream, &pkt_stream->pkts[i], offset, pkt_len);
+
+	ifobj->xsk->pkt_stream = pkt_stream;
+
+	return 0;
+}
+
+static int pkt_stream_replace_half(struct test_spec *test, u32 pkt_len, int offset)
+{
+	int ret = __pkt_stream_replace_half(test->ifobj_tx, pkt_len, offset);
+
+	if (ret)
+		return ret;
+
+	return __pkt_stream_replace_half(test->ifobj_rx, pkt_len, offset);
+}
+
+static int pkt_stream_receive_half(struct test_spec *test)
+{
+	struct pkt_stream *pkt_stream = test->ifobj_tx->xsk->pkt_stream;
+	u32 i;
+
+	if (test->ifobj_rx->xsk->pkt_stream != test->rx_pkt_stream_default)
+		/* Packet stream has already been replaced so we have to release this one.
+		 * The newly created one will be freed by the restore_default() at the
+		 * end of the test
+		 */
+		pkt_stream_delete(test->ifobj_rx->xsk->pkt_stream);
+
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(pkt_stream->nb_pkts,
+							      pkt_stream->pkts[0].len);
+	if (!test->ifobj_rx->xsk->pkt_stream)
+		return -ENOMEM;
+
+	pkt_stream = test->ifobj_rx->xsk->pkt_stream;
+	for (i = 1; i < pkt_stream->nb_pkts; i += 2)
+		pkt_stream->pkts[i].valid = false;
+
+	pkt_stream->nb_valid_entries /= 2;
+
+	return 0;
+}
+
+static int pkt_stream_even_odd_sequence(struct test_spec *test)
+{
+	struct pkt_stream *pkt_stream;
+	u32 i;
+
+	for (i = 0; i < test->nb_sockets; i++) {
+		pkt_stream = test->ifobj_tx->xsk_arr[i].pkt_stream;
+		pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
+						   pkt_stream->pkts[0].len, i, 2);
+		if (!pkt_stream)
+			return -ENOMEM;
+		test->ifobj_tx->xsk_arr[i].pkt_stream = pkt_stream;
+
+		pkt_stream = test->ifobj_rx->xsk_arr[i].pkt_stream;
+		pkt_stream = __pkt_stream_generate(pkt_stream->nb_pkts / 2,
+						   pkt_stream->pkts[0].len, i, 2);
+		if (!pkt_stream)
+			return -ENOMEM;
+		test->ifobj_rx->xsk_arr[i].pkt_stream = pkt_stream;
+	}
+
+	return 0;
+}
+
+static void release_even_odd_sequence(struct test_spec *test)
+{
+	struct pkt_stream *later_free_tx = test->ifobj_tx->xsk->pkt_stream;
+	struct pkt_stream *later_free_rx = test->ifobj_rx->xsk->pkt_stream;
+	int i;
+
+	for (i = 0; i < test->nb_sockets; i++) {
+		/* later_free_{rx/tx} will be freed by restore_default() */
+		if (test->ifobj_tx->xsk_arr[i].pkt_stream != later_free_tx)
+			pkt_stream_delete(test->ifobj_tx->xsk_arr[i].pkt_stream);
+		if (test->ifobj_rx->xsk_arr[i].pkt_stream != later_free_rx)
+			pkt_stream_delete(test->ifobj_rx->xsk_arr[i].pkt_stream);
+	}
+
+}
+
+static u64 pkt_get_addr(struct pkt *pkt, struct xsk_umem_info *umem)
+{
+	if (!pkt->valid)
+		return pkt->offset;
+	return pkt->offset + umem_alloc_buffer(umem);
+}
+
+static void pkt_stream_cancel(struct pkt_stream *pkt_stream)
+{
+	pkt_stream->current_pkt_nb--;
+}
+
+static void pkt_generate(struct xsk_socket_info *xsk, struct xsk_umem_info *umem, u64 addr, u32 len,
+			 u32 pkt_nb, u32 bytes_written)
+{
+	void *data = xsk_umem__get_data(umem->buffer, addr);
+
+	if (len < MIN_PKT_SIZE)
+		return;
+
+	if (!bytes_written) {
+		gen_eth_hdr(xsk, data);
+
+		len -= PKT_HDR_SIZE;
+		data += PKT_HDR_SIZE;
+	} else {
+		bytes_written -= PKT_HDR_SIZE;
+	}
+
+	write_payload(data, pkt_nb, bytes_written, len);
+}
+
+static struct pkt_stream *__pkt_stream_generate_custom(struct ifobject *ifobj, struct pkt *frames,
+						       u32 nb_frames, bool verbatim)
+{
+	u32 i, len = 0, pkt_nb = 0, payload = 0;
+	struct pkt_stream *pkt_stream;
+
+	pkt_stream = __pkt_stream_alloc(nb_frames);
+	if (!pkt_stream)
+		return NULL;
+
+	for (i = 0; i < nb_frames; i++) {
+		struct pkt *pkt = &pkt_stream->pkts[pkt_nb];
+		struct pkt *frame = &frames[i];
+
+		pkt->offset = frame->offset;
+		if (verbatim) {
+			*pkt = *frame;
+			pkt->pkt_nb = payload;
+			if (!frame->valid || !pkt_continues(frame->options))
+				payload++;
+		} else {
+			if (frame->valid)
+				len += frame->len;
+			if (frame->valid && pkt_continues(frame->options))
+				continue;
+
+			pkt->pkt_nb = pkt_nb;
+			pkt->len = len;
+			pkt->valid = frame->valid;
+			pkt->options = 0;
+
+			len = 0;
+		}
+
+		print_verbose("offset: %d len: %u valid: %u options: %u pkt_nb: %u\n",
+			      pkt->offset, pkt->len, pkt->valid, pkt->options, pkt->pkt_nb);
+
+		if (pkt->valid && pkt->len > pkt_stream->max_pkt_len)
+			pkt_stream->max_pkt_len = pkt->len;
+
+		if (pkt->valid)
+			pkt_stream->nb_valid_entries++;
+
+		pkt_nb++;
+	}
+
+	pkt_stream->nb_pkts = pkt_nb;
+	pkt_stream->verbatim = verbatim;
+	return pkt_stream;
+}
+
+static int pkt_stream_generate_custom(struct test_spec *test, struct pkt *pkts, u32 nb_pkts)
+{
+	struct pkt_stream *pkt_stream;
+
+	pkt_stream = __pkt_stream_generate_custom(test->ifobj_tx, pkts, nb_pkts, true);
+	if (!pkt_stream)
+		return -ENOMEM;
+	test->ifobj_tx->xsk->pkt_stream = pkt_stream;
+
+	pkt_stream = __pkt_stream_generate_custom(test->ifobj_rx, pkts, nb_pkts, false);
+	if (!pkt_stream)
+		return -ENOMEM;
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream;
+
+	return 0;
+}
+
+static void pkt_print_data(u32 *data, u32 cnt)
+{
+	u32 i;
+
+	for (i = 0; i < cnt; i++) {
+		u32 seqnum, pkt_nb;
+
+		seqnum = ntohl(*data) & 0xffff;
+		pkt_nb = ntohl(*data) >> 16;
+		ksft_print_msg("%u:%u ", pkt_nb, seqnum);
+		data++;
+	}
+}
+
+static void pkt_dump(void *pkt, u32 len, bool eth_header)
+{
+	struct ethhdr *ethhdr = pkt;
+	u32 i, *data;
+
+	if (eth_header) {
+		/*extract L2 frame */
+		ksft_print_msg("DEBUG>> L2: dst mac: ");
+		for (i = 0; i < ETH_ALEN; i++)
+			ksft_print_msg("%02X", ethhdr->h_dest[i]);
+
+		ksft_print_msg("\nDEBUG>> L2: src mac: ");
+		for (i = 0; i < ETH_ALEN; i++)
+			ksft_print_msg("%02X", ethhdr->h_source[i]);
+
+		data = pkt + PKT_HDR_SIZE;
+	} else {
+		data = pkt;
+	}
+
+	/*extract L5 frame */
+	ksft_print_msg("\nDEBUG>> L5: seqnum: ");
+	pkt_print_data(data, PKT_DUMP_NB_TO_PRINT);
+	ksft_print_msg("....");
+	if (len > PKT_DUMP_NB_TO_PRINT * sizeof(u32)) {
+		ksft_print_msg("\n.... ");
+		pkt_print_data(data + len / sizeof(u32) - PKT_DUMP_NB_TO_PRINT,
+			       PKT_DUMP_NB_TO_PRINT);
+	}
+	ksft_print_msg("\n---------------------------------------\n");
+}
+
+static bool is_offset_correct(struct xsk_umem_info *umem, struct pkt *pkt, u64 addr)
+{
+	u32 headroom = umem->unaligned_mode ? 0 : umem->frame_headroom;
+	u32 offset = addr % umem->frame_size, expected_offset;
+	int pkt_offset = pkt->valid ? pkt->offset : 0;
+
+	if (!umem->unaligned_mode)
+		pkt_offset = 0;
+
+	expected_offset = (pkt_offset + headroom + XDP_PACKET_HEADROOM) % umem->frame_size;
+
+	if (offset == expected_offset)
+		return true;
+
+	ksft_print_msg("[%s] expected [%u], got [%u]\n", __func__, expected_offset, offset);
+	return false;
+}
+
+static bool is_metadata_correct(struct pkt *pkt, void *buffer, u64 addr)
+{
+	void *data = xsk_umem__get_data(buffer, addr);
+	struct xdp_info *meta = data - sizeof(struct xdp_info);
+
+	if (meta->count != pkt->pkt_nb) {
+		ksft_print_msg("[%s] expected meta_count [%d], got meta_count [%llu]\n",
+			       __func__, pkt->pkt_nb,
+			       (unsigned long long)meta->count);
+		return false;
+	}
+
+	return true;
+}
+
+static int is_adjust_tail_supported(struct xsk_xdp_progs *skel_rx, bool *supported)
+{
+	struct bpf_map *data_map;
+	int adjust_value = 0;
+	int key = 0;
+	int ret;
+
+	data_map = bpf_object__find_map_by_name(skel_rx->obj, "xsk_xdp_.bss");
+	if (!data_map || !bpf_map__is_internal(data_map)) {
+		ksft_print_msg("Error: could not find bss section of XDP program\n");
+		return -EINVAL;
+	}
+
+	ret = bpf_map_lookup_elem(bpf_map__fd(data_map), &key, &adjust_value);
+	if (ret) {
+		ksft_print_msg("Error: bpf_map_lookup_elem failed with error %d\n", ret);
+		return ret;
+	}
+
+	/* Set the 'adjust_value' variable to -EOPNOTSUPP in the XDP program if the adjust_tail
+	 * helper is not supported. Skip the adjust_tail test case in this scenario.
+	 */
+	*supported = adjust_value != -EOPNOTSUPP;
+
+	return 0;
+}
+
+static bool is_frag_valid(struct xsk_umem_info *umem, u64 addr, u32 len, u32 expected_pkt_nb,
+			  u32 bytes_processed)
+{
+	u32 seqnum, pkt_nb, *pkt_data, words_to_end, expected_seqnum;
+	void *data = xsk_umem__get_data(umem->buffer, addr);
+
+	addr -= umem->base_addr;
+
+	if (addr >= umem->num_frames * umem->frame_size ||
+	    addr + len > umem->num_frames * umem->frame_size) {
+		ksft_print_msg("Frag invalid addr: %llx len: %u\n",
+			       (unsigned long long)addr, len);
+		return false;
+	}
+	if (!umem->unaligned_mode && addr % umem->frame_size + len > umem->frame_size) {
+		ksft_print_msg("Frag crosses frame boundary addr: %llx len: %u\n",
+			       (unsigned long long)addr, len);
+		return false;
+	}
+
+	pkt_data = data;
+	if (!bytes_processed) {
+		pkt_data += PKT_HDR_SIZE / sizeof(*pkt_data);
+		len -= PKT_HDR_SIZE;
+	} else {
+		bytes_processed -= PKT_HDR_SIZE;
+	}
+
+	expected_seqnum = bytes_processed / sizeof(*pkt_data);
+	seqnum = ntohl(*pkt_data) & 0xffff;
+	pkt_nb = ntohl(*pkt_data) >> 16;
+
+	if (expected_pkt_nb != pkt_nb) {
+		ksft_print_msg("[%s] expected pkt_nb [%u], got pkt_nb [%u]\n",
+			       __func__, expected_pkt_nb, pkt_nb);
+		goto error;
+	}
+	if (expected_seqnum != seqnum) {
+		ksft_print_msg("[%s] expected seqnum at start [%u], got seqnum [%u]\n",
+			       __func__, expected_seqnum, seqnum);
+		goto error;
+	}
+
+	words_to_end = len / sizeof(*pkt_data) - 1;
+	pkt_data += words_to_end;
+	seqnum = ntohl(*pkt_data) & 0xffff;
+	expected_seqnum += words_to_end;
+	if (expected_seqnum != seqnum) {
+		ksft_print_msg("[%s] expected seqnum at end [%u], got seqnum [%u]\n",
+			       __func__, expected_seqnum, seqnum);
+		goto error;
+	}
+
+	return true;
+
+error:
+	pkt_dump(data, len, !bytes_processed);
+	return false;
+}
+
+static bool is_pkt_valid(struct pkt *pkt, void *buffer, u64 addr, u32 len)
+{
+	if (pkt->len != len) {
+		ksft_print_msg("[%s] expected packet length [%d], got length [%d]\n",
+			       __func__, pkt->len, len);
+		pkt_dump(xsk_umem__get_data(buffer, addr), len, true);
+		return false;
+	}
+
+	return true;
+}
+
+static u32 load_value(u32 *counter)
+{
+	return __atomic_load_n(counter, __ATOMIC_ACQUIRE);
+}
+
+static bool kick_tx_with_check(struct xsk_socket_info *xsk, int *ret)
+{
+	u32 max_budget = MAX_TX_BUDGET_DEFAULT;
+	u32 cons, ready_to_send;
+	int delta;
+
+	cons = load_value(xsk->tx.consumer);
+	ready_to_send = load_value(xsk->tx.producer) - cons;
+	*ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
+
+	delta = load_value(xsk->tx.consumer) - cons;
+	/* By default, xsk should consume exact @max_budget descs at one
+	 * send in this case where hitting the max budget limit in while
+	 * loop is triggered in __xsk_generic_xmit(). Please make sure that
+	 * the number of descs to be sent is larger than @max_budget, or
+	 * else the tx.consumer will be updated in xskq_cons_peek_desc()
+	 * in time which hides the issue we try to verify.
+	 */
+	if (ready_to_send > max_budget && delta != max_budget)
+		return false;
+
+	return true;
+}
+
+int kick_tx(struct xsk_socket_info *xsk)
+{
+	int ret;
+
+	if (xsk->check_consumer) {
+		if (!kick_tx_with_check(xsk, &ret))
+			return TEST_FAILURE;
+	} else {
+		ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
+	}
+	if (ret >= 0)
+		return TEST_PASS;
+	if (errno == ENOBUFS || errno == EAGAIN || errno == EBUSY || errno == ENETDOWN) {
+		usleep(100);
+		return TEST_PASS;
+	}
+	return TEST_FAILURE;
+}
+
+int kick_rx(struct xsk_socket_info *xsk)
+{
+	int ret;
+
+	ret = recvfrom(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, NULL);
+	if (ret < 0)
+		return TEST_FAILURE;
+
+	return TEST_PASS;
+}
+
+static int complete_pkts(struct xsk_socket_info *xsk, int batch_size)
+{
+	unsigned int rcvd;
+	u32 idx;
+	int ret;
+
+	if (xsk_ring_prod__needs_wakeup(&xsk->tx)) {
+		ret = kick_tx(xsk);
+		if (ret)
+			return TEST_FAILURE;
+	}
+
+	rcvd = xsk_ring_cons__peek(&xsk->umem->cq, batch_size, &idx);
+	if (rcvd) {
+		if (rcvd > xsk->outstanding_tx) {
+			u64 addr = *xsk_ring_cons__comp_addr(&xsk->umem->cq, idx + rcvd - 1);
+
+			ksft_print_msg("[%s] Too many packets completed\n", __func__);
+			ksft_print_msg("Last completion address: %llx\n",
+				       (unsigned long long)addr);
+			return TEST_FAILURE;
+		}
+
+		xsk_ring_cons__release(&xsk->umem->cq, rcvd);
+		xsk->outstanding_tx -= rcvd;
+	}
+
+	return TEST_PASS;
+}
+
+static int __receive_pkts(struct test_spec *test, struct xsk_socket_info *xsk)
+{
+	u32 frags_processed = 0, nb_frags = 0, pkt_len = 0;
+	u32 idx_rx = 0, idx_fq = 0, rcvd, pkts_sent = 0;
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
+	struct ifobject *ifobj = test->ifobj_rx;
+	struct xsk_umem_info *umem = xsk->umem;
+	struct pollfd fds = { };
+	struct pkt *pkt;
+	u64 first_addr = 0;
+	int ret;
+
+	fds.fd = xsk_socket__fd(xsk->xsk);
+	fds.events = POLLIN;
+
+	ret = kick_rx(xsk);
+	if (ret)
+		return TEST_FAILURE;
+
+	if (ifobj->use_poll) {
+		ret = poll(&fds, 1, POLL_TMOUT);
+		if (ret < 0)
+			return TEST_FAILURE;
+
+		if (!ret) {
+			if (!is_umem_valid(test->ifobj_tx))
+				return TEST_PASS;
+
+			ksft_print_msg("ERROR: [%s] Poll timed out\n", __func__);
+			return TEST_CONTINUE;
+		}
+
+		if (!(fds.revents & POLLIN))
+			return TEST_CONTINUE;
+	}
+
+	rcvd = xsk_ring_cons__peek(&xsk->rx, xsk->batch_size, &idx_rx);
+	if (!rcvd)
+		return TEST_CONTINUE;
+
+	if (ifobj->use_fill_ring) {
+		ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
+		while (ret != rcvd) {
+			if (xsk_ring_prod__needs_wakeup(&umem->fq)) {
+				ret = poll(&fds, 1, POLL_TMOUT);
+				if (ret < 0)
+					return TEST_FAILURE;
+			}
+			ret = xsk_ring_prod__reserve(&umem->fq, rcvd, &idx_fq);
+		}
+	}
+
+	while (frags_processed < rcvd) {
+		const struct xdp_desc *desc = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++);
+		u64 addr = desc->addr, orig;
+
+		orig = xsk_umem__extract_addr(addr);
+		addr = xsk_umem__add_offset_to_addr(addr);
+
+		if (!nb_frags) {
+			pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &pkts_sent);
+			if (!pkt) {
+				ksft_print_msg("[%s] received too many packets addr: %lx len %u\n",
+					       __func__, addr, desc->len);
+				return TEST_FAILURE;
+			}
+		}
+
+		print_verbose("Rx: addr: %lx len: %u options: %u pkt_nb: %u valid: %u\n",
+			      addr, desc->len, desc->options, pkt->pkt_nb, pkt->valid);
+
+		if (!is_frag_valid(umem, addr, desc->len, pkt->pkt_nb, pkt_len) ||
+		    !is_offset_correct(umem, pkt, addr) || (ifobj->use_metadata &&
+		    !is_metadata_correct(pkt, umem->buffer, addr)))
+			return TEST_FAILURE;
+
+		if (!nb_frags++)
+			first_addr = addr;
+		frags_processed++;
+		pkt_len += desc->len;
+		if (ifobj->use_fill_ring)
+			*xsk_ring_prod__fill_addr(&umem->fq, idx_fq++) = orig;
+
+		if (pkt_continues(desc->options))
+			continue;
+
+		/* The complete packet has been received */
+		if (!is_pkt_valid(pkt, umem->buffer, first_addr, pkt_len) ||
+		    !is_offset_correct(umem, pkt, addr))
+			return TEST_FAILURE;
+
+		pkt_stream->nb_rx_pkts++;
+		nb_frags = 0;
+		pkt_len = 0;
+	}
+
+	if (nb_frags) {
+		/* In the middle of a packet. Start over from beginning of packet. */
+		idx_rx -= nb_frags;
+		xsk_ring_cons__cancel(&xsk->rx, nb_frags);
+		if (ifobj->use_fill_ring) {
+			idx_fq -= nb_frags;
+			xsk_ring_prod__cancel(&umem->fq, nb_frags);
+		}
+		frags_processed -= nb_frags;
+	}
+
+	if (ifobj->use_fill_ring)
+		xsk_ring_prod__submit(&umem->fq, frags_processed);
+	if (ifobj->release_rx)
+		xsk_ring_cons__release(&xsk->rx, frags_processed);
+
+	pthread_mutex_lock(&pacing_mutex);
+	pkts_in_flight -= pkts_sent;
+	pthread_mutex_unlock(&pacing_mutex);
+	pkts_sent = 0;
+
+	return TEST_CONTINUE;
+}
+
+bool all_packets_received(struct test_spec *test, struct xsk_socket_info *xsk, u32 sock_num,
+			  unsigned long *bitmap)
+{
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
+
+	if (!pkt_stream) {
+		__set_bit(sock_num, bitmap);
+		return false;
+	}
+
+	if (pkt_stream->nb_rx_pkts == pkt_stream->nb_valid_entries) {
+		__set_bit(sock_num, bitmap);
+		if (bitmap_full(bitmap, test->nb_sockets))
+			return true;
+	}
+
+	return false;
+}
+
+static int receive_pkts(struct test_spec *test)
+{
+	struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0};
+	DECLARE_BITMAP(bitmap, test->nb_sockets);
+	struct xsk_socket_info *xsk;
+	u32 sock_num = 0;
+	int res, ret;
+
+	bitmap_zero(bitmap, test->nb_sockets);
+
+	ret = gettimeofday(&tv_now, NULL);
+	if (ret)
+		return TEST_FAILURE;
+
+	timeradd(&tv_now, &tv_timeout, &tv_end);
+
+	while (1) {
+		xsk = &test->ifobj_rx->xsk_arr[sock_num];
+
+		if ((all_packets_received(test, xsk, sock_num, bitmap)))
+			break;
+
+		res = __receive_pkts(test, xsk);
+		if (!(res == TEST_PASS || res == TEST_CONTINUE))
+			return res;
+
+		ret = gettimeofday(&tv_now, NULL);
+		if (ret)
+			return TEST_FAILURE;
+
+		if (timercmp(&tv_now, &tv_end, >)) {
+			ksft_print_msg("ERROR: [%s] Receive loop timed out\n", __func__);
+			return TEST_FAILURE;
+		}
+		sock_num = (sock_num + 1) % test->nb_sockets;
+	}
+
+	return TEST_PASS;
+}
+
+static int __send_pkts(struct ifobject *ifobject, struct xsk_socket_info *xsk, bool timeout)
+{
+	u32 i, idx = 0, valid_pkts = 0, valid_frags = 0, buffer_len;
+	struct pkt_stream *pkt_stream = xsk->pkt_stream;
+	struct xsk_umem_info *umem = ifobject->umem;
+	bool use_poll = ifobject->use_poll;
+	struct pollfd fds = { };
+	int ret;
+
+	buffer_len = pkt_get_buffer_len(umem, pkt_stream->max_pkt_len);
+	/* pkts_in_flight might be negative if many invalid packets are sent */
+	if (pkts_in_flight >= (int)((umem_size(umem) - xsk->batch_size * buffer_len) /
+	    buffer_len)) {
+		ret = kick_tx(xsk);
+		if (ret)
+			return TEST_FAILURE;
+		return TEST_CONTINUE;
+	}
+
+	fds.fd = xsk_socket__fd(xsk->xsk);
+	fds.events = POLLOUT;
+
+	while (xsk_ring_prod__reserve(&xsk->tx, xsk->batch_size, &idx) < xsk->batch_size) {
+		if (use_poll) {
+			ret = poll(&fds, 1, POLL_TMOUT);
+			if (timeout) {
+				if (ret < 0) {
+					ksft_print_msg("ERROR: [%s] Poll error %d\n",
+						       __func__, errno);
+					return TEST_FAILURE;
+				}
+				if (ret == 0)
+					return TEST_PASS;
+				break;
+			}
+			if (ret <= 0) {
+				ksft_print_msg("ERROR: [%s] Poll error %d\n",
+					       __func__, errno);
+				return TEST_FAILURE;
+			}
+		}
+
+		complete_pkts(xsk, xsk->batch_size);
+	}
+
+	for (i = 0; i < xsk->batch_size; i++) {
+		struct pkt *pkt = pkt_stream_get_next_tx_pkt(pkt_stream);
+		u32 nb_frags_left, nb_frags, bytes_written = 0;
+
+		if (!pkt)
+			break;
+
+		nb_frags = pkt_nb_frags(umem->frame_size, pkt_stream, pkt);
+		if (nb_frags > xsk->batch_size - i) {
+			pkt_stream_cancel(pkt_stream);
+			xsk_ring_prod__cancel(&xsk->tx, xsk->batch_size - i);
+			break;
+		}
+		nb_frags_left = nb_frags;
+
+		while (nb_frags_left--) {
+			struct xdp_desc *tx_desc = xsk_ring_prod__tx_desc(&xsk->tx, idx + i);
+
+			tx_desc->addr = pkt_get_addr(pkt, ifobject->umem);
+			if (pkt_stream->verbatim) {
+				tx_desc->len = pkt->len;
+				tx_desc->options = pkt->options;
+			} else if (nb_frags_left) {
+				tx_desc->len = umem->frame_size;
+				tx_desc->options = XDP_PKT_CONTD;
+			} else {
+				tx_desc->len = pkt->len - bytes_written;
+				tx_desc->options = 0;
+			}
+			if (pkt->valid)
+				pkt_generate(xsk, umem, tx_desc->addr, tx_desc->len, pkt->pkt_nb,
+					     bytes_written);
+			bytes_written += tx_desc->len;
+
+			print_verbose("Tx addr: %llx len: %u options: %u pkt_nb: %u\n",
+				      tx_desc->addr, tx_desc->len, tx_desc->options, pkt->pkt_nb);
+
+			if (nb_frags_left) {
+				i++;
+				if (pkt_stream->verbatim)
+					pkt = pkt_stream_get_next_tx_pkt(pkt_stream);
+			}
+		}
+
+		if (pkt && pkt->valid) {
+			valid_pkts++;
+			valid_frags += nb_frags;
+		}
+	}
+
+	pthread_mutex_lock(&pacing_mutex);
+	pkts_in_flight += valid_pkts;
+	pthread_mutex_unlock(&pacing_mutex);
+
+	xsk_ring_prod__submit(&xsk->tx, i);
+	xsk->outstanding_tx += valid_frags;
+
+	if (use_poll) {
+		ret = poll(&fds, 1, POLL_TMOUT);
+		if (ret <= 0) {
+			if (ret == 0 && timeout)
+				return TEST_PASS;
+
+			ksft_print_msg("ERROR: [%s] Poll error %d\n", __func__, ret);
+			return TEST_FAILURE;
+		}
+	}
+
+	if (!timeout) {
+		if (complete_pkts(xsk, i))
+			return TEST_FAILURE;
+
+		usleep(10);
+		return TEST_PASS;
+	}
+
+	return TEST_CONTINUE;
+}
+
+static int wait_for_tx_completion(struct xsk_socket_info *xsk)
+{
+	struct timeval tv_end, tv_now, tv_timeout = {THREAD_TMOUT, 0};
+	int ret;
+
+	ret = gettimeofday(&tv_now, NULL);
+	if (ret)
+		return TEST_FAILURE;
+	timeradd(&tv_now, &tv_timeout, &tv_end);
+
+	while (xsk->outstanding_tx) {
+		ret = gettimeofday(&tv_now, NULL);
+		if (ret)
+			return TEST_FAILURE;
+		if (timercmp(&tv_now, &tv_end, >)) {
+			ksft_print_msg("ERROR: [%s] Transmission loop timed out\n", __func__);
+			return TEST_FAILURE;
+		}
+
+		complete_pkts(xsk, xsk->batch_size);
+	}
+
+	return TEST_PASS;
+}
+
+bool all_packets_sent(struct test_spec *test, unsigned long *bitmap)
+{
+	return bitmap_full(bitmap, test->nb_sockets);
+}
+
+static int send_pkts(struct test_spec *test, struct ifobject *ifobject)
+{
+	bool timeout = !is_umem_valid(test->ifobj_rx);
+	DECLARE_BITMAP(bitmap, test->nb_sockets);
+	u32 i, ret;
+
+	bitmap_zero(bitmap, test->nb_sockets);
+
+	while (!(all_packets_sent(test, bitmap))) {
+		for (i = 0; i < test->nb_sockets; i++) {
+			struct pkt_stream *pkt_stream;
+
+			pkt_stream = ifobject->xsk_arr[i].pkt_stream;
+			if (!pkt_stream || pkt_stream->current_pkt_nb >= pkt_stream->nb_pkts) {
+				__set_bit(i, bitmap);
+				continue;
+			}
+			ret = __send_pkts(ifobject, &ifobject->xsk_arr[i], timeout);
+			if (ret == TEST_CONTINUE && !test->fail)
+				continue;
+
+			if ((ret || test->fail) && !timeout)
+				return TEST_FAILURE;
+
+			if (ret == TEST_PASS && timeout)
+				return ret;
+
+			ret = wait_for_tx_completion(&ifobject->xsk_arr[i]);
+			if (ret)
+				return TEST_FAILURE;
+		}
+	}
+
+	return TEST_PASS;
+}
+
+static int get_xsk_stats(struct xsk_socket *xsk, struct xdp_statistics *stats)
+{
+	int fd = xsk_socket__fd(xsk), err;
+	socklen_t optlen, expected_len;
+
+	optlen = sizeof(*stats);
+	err = getsockopt(fd, SOL_XDP, XDP_STATISTICS, stats, &optlen);
+	if (err) {
+		ksft_print_msg("[%s] getsockopt(XDP_STATISTICS) error %u %s\n",
+			       __func__, -err, strerror(-err));
+		return TEST_FAILURE;
+	}
+
+	expected_len = sizeof(struct xdp_statistics);
+	if (optlen != expected_len) {
+		ksft_print_msg("[%s] getsockopt optlen error. Expected: %u got: %u\n",
+			       __func__, expected_len, optlen);
+		return TEST_FAILURE;
+	}
+
+	return TEST_PASS;
+}
+
+static int validate_rx_dropped(struct ifobject *ifobject)
+{
+	struct xsk_socket *xsk = ifobject->xsk->xsk;
+	struct xdp_statistics stats;
+	int err;
+
+	err = kick_rx(ifobject->xsk);
+	if (err)
+		return TEST_FAILURE;
+
+	err = get_xsk_stats(xsk, &stats);
+	if (err)
+		return TEST_FAILURE;
+
+	/* The receiver calls getsockopt after receiving the last (valid)
+	 * packet which is not the final packet sent in this test (valid and
+	 * invalid packets are sent in alternating fashion with the final
+	 * packet being invalid). Since the last packet may or may not have
+	 * been dropped already, both outcomes must be allowed.
+	 */
+	if (stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 ||
+	    stats.rx_dropped == ifobject->xsk->pkt_stream->nb_pkts / 2 - 1)
+		return TEST_PASS;
+
+	return TEST_FAILURE;
+}
+
+static int validate_rx_full(struct ifobject *ifobject)
+{
+	struct xsk_socket *xsk = ifobject->xsk->xsk;
+	struct xdp_statistics stats;
+	int err;
+
+	usleep(1000);
+	err = kick_rx(ifobject->xsk);
+	if (err)
+		return TEST_FAILURE;
+
+	err = get_xsk_stats(xsk, &stats);
+	if (err)
+		return TEST_FAILURE;
+
+	if (stats.rx_ring_full)
+		return TEST_PASS;
+
+	return TEST_FAILURE;
+}
+
+static int validate_fill_empty(struct ifobject *ifobject)
+{
+	struct xsk_socket *xsk = ifobject->xsk->xsk;
+	struct xdp_statistics stats;
+	int err;
+
+	usleep(1000);
+	err = kick_rx(ifobject->xsk);
+	if (err)
+		return TEST_FAILURE;
+
+	err = get_xsk_stats(xsk, &stats);
+	if (err)
+		return TEST_FAILURE;
+
+	if (stats.rx_fill_ring_empty_descs)
+		return TEST_PASS;
+
+	return TEST_FAILURE;
+}
+
+static int validate_tx_invalid_descs(struct ifobject *ifobject)
+{
+	struct xsk_socket *xsk = ifobject->xsk->xsk;
+	int fd = xsk_socket__fd(xsk);
+	struct xdp_statistics stats;
+	socklen_t optlen;
+	int err;
+
+	optlen = sizeof(stats);
+	err = getsockopt(fd, SOL_XDP, XDP_STATISTICS, &stats, &optlen);
+	if (err) {
+		ksft_print_msg("[%s] getsockopt(XDP_STATISTICS) error %u %s\n",
+			       __func__, -err, strerror(-err));
+		return TEST_FAILURE;
+	}
+
+	if (stats.tx_invalid_descs != ifobject->xsk->pkt_stream->nb_pkts / 2) {
+		ksft_print_msg("[%s] tx_invalid_descs incorrect. Got [%llu] expected [%u]\n",
+			       __func__,
+			       (unsigned long long)stats.tx_invalid_descs,
+			       ifobject->xsk->pkt_stream->nb_pkts);
+		return TEST_FAILURE;
+	}
+
+	return TEST_PASS;
+}
+
+static int xsk_configure(struct test_spec *test, struct ifobject *ifobject,
+			  struct xsk_umem_info *umem, bool tx)
+{
+	int i, ret;
+
+	for (i = 0; i < test->nb_sockets; i++) {
+		bool shared = (ifobject->shared_umem && tx) ? true : !!i;
+		u32 ctr = 0;
+
+		while (ctr++ < SOCK_RECONF_CTR) {
+			ret = xsk_configure_socket(&ifobject->xsk_arr[i], umem,
+						     ifobject, shared);
+			if (!ret)
+				break;
+
+			/* Retry if it fails as xsk_socket__create() is asynchronous */
+			if (ctr >= SOCK_RECONF_CTR)
+				return ret;
+			usleep(USLEEP_MAX);
+		}
+		if (ifobject->busy_poll) {
+			ret = enable_busy_poll(&ifobject->xsk_arr[i]);
+			if (ret)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int thread_common_ops_tx(struct test_spec *test, struct ifobject *ifobject)
+{
+	int ret = xsk_configure(test, ifobject, test->ifobj_rx->umem, true);
+
+	if (ret)
+		return ret;
+	ifobject->xsk = &ifobject->xsk_arr[0];
+	ifobject->xskmap = test->ifobj_rx->xskmap;
+	memcpy(ifobject->umem, test->ifobj_rx->umem, sizeof(struct xsk_umem_info));
+	ifobject->umem->base_addr = 0;
+
+	return 0;
+}
+
+static int xsk_populate_fill_ring(struct xsk_umem_info *umem, struct pkt_stream *pkt_stream,
+				   bool fill_up)
+{
+	u32 rx_frame_size = umem->frame_size - XDP_PACKET_HEADROOM;
+	u32 idx = 0, filled = 0, buffers_to_fill, nb_pkts;
+	int ret;
+
+	if (umem->num_frames < XSK_RING_PROD__DEFAULT_NUM_DESCS)
+		buffers_to_fill = umem->num_frames;
+	else
+		buffers_to_fill = umem->fill_size;
+
+	ret = xsk_ring_prod__reserve(&umem->fq, buffers_to_fill, &idx);
+	if (ret != buffers_to_fill)
+		return -ENOSPC;
+
+	while (filled < buffers_to_fill) {
+		struct pkt *pkt = pkt_stream_get_next_rx_pkt(pkt_stream, &nb_pkts);
+		u64 addr;
+		u32 i;
+
+		for (i = 0; i < pkt_nb_frags(rx_frame_size, pkt_stream, pkt); i++) {
+			if (!pkt) {
+				if (!fill_up)
+					break;
+				addr = filled * umem->frame_size + umem->base_addr;
+			} else if (pkt->offset >= 0) {
+				addr = pkt->offset % umem->frame_size + umem_alloc_buffer(umem);
+			} else {
+				addr = pkt->offset + umem_alloc_buffer(umem);
+			}
+
+			*xsk_ring_prod__fill_addr(&umem->fq, idx++) = addr;
+			if (++filled >= buffers_to_fill)
+				break;
+		}
+	}
+	xsk_ring_prod__submit(&umem->fq, filled);
+	xsk_ring_prod__cancel(&umem->fq, buffers_to_fill - filled);
+
+	pkt_stream_reset(pkt_stream);
+	umem_reset_alloc(umem);
+
+	return 0;
+}
+
+static int thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
+{
+	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
+	int mmap_flags;
+	u64 umem_sz;
+	void *bufs;
+	int ret;
+	u32 i;
+
+	umem_sz = ifobject->umem->num_frames * ifobject->umem->frame_size;
+	mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+
+	if (ifobject->umem->unaligned_mode)
+		mmap_flags |= MAP_HUGETLB | MAP_HUGE_2MB;
+
+	if (ifobject->shared_umem)
+		umem_sz *= 2;
+
+	bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
+	if (bufs == MAP_FAILED)
+		return -errno;
+
+	ret = xsk_configure_umem(ifobject, ifobject->umem, bufs, umem_sz);
+	if (ret)
+		return ret;
+
+	ret = xsk_configure(test, ifobject, ifobject->umem, false);
+	if (ret)
+		return ret;
+
+	ifobject->xsk = &ifobject->xsk_arr[0];
+
+	if (!ifobject->rx_on)
+		return 0;
+
+	ret = xsk_populate_fill_ring(ifobject->umem, ifobject->xsk->pkt_stream,
+				     ifobject->use_fill_ring);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < test->nb_sockets; i++) {
+		ifobject->xsk = &ifobject->xsk_arr[i];
+		ret = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, i);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+void *worker_testapp_validate_tx(void *arg)
+{
+	struct test_spec *test = (struct test_spec *)arg;
+	struct ifobject *ifobject = test->ifobj_tx;
+	int err;
+
+	if (test->current_step == 1) {
+		if (!ifobject->shared_umem) {
+			if (thread_common_ops(test, ifobject)) {
+				test->fail = true;
+				pthread_exit(NULL);
+			}
+		} else {
+			if (thread_common_ops_tx(test, ifobject)) {
+				test->fail = true;
+				pthread_exit(NULL);
+			}
+		}
+	}
+
+	err = send_pkts(test, ifobject);
+
+	if (!err && ifobject->validation_func)
+		err = ifobject->validation_func(ifobject);
+	if (err)
+		test->fail = true;
+
+	pthread_exit(NULL);
+}
+
+void *worker_testapp_validate_rx(void *arg)
+{
+	struct test_spec *test = (struct test_spec *)arg;
+	struct ifobject *ifobject = test->ifobj_rx;
+	int err;
+
+	if (test->current_step == 1) {
+		err = thread_common_ops(test, ifobject);
+	} else {
+		xsk_clear_xskmap(ifobject->xskmap);
+		err = xsk_update_xskmap(ifobject->xskmap, ifobject->xsk->xsk, 0);
+		if (err)
+			ksft_print_msg("Error: Failed to update xskmap, error %s\n",
+				       strerror(-err));
+	}
+
+	pthread_barrier_wait(&barr);
+
+	/* We leave only now in case of error to avoid getting stuck in the barrier */
+	if (err) {
+		test->fail = true;
+		pthread_exit(NULL);
+	}
+
+	err = receive_pkts(test);
+
+	if (!err && ifobject->validation_func)
+		err = ifobject->validation_func(ifobject);
+
+	if (err) {
+		if (!test->adjust_tail) {
+			test->fail = true;
+		} else {
+			bool supported;
+
+			if (is_adjust_tail_supported(ifobject->xdp_progs, &supported))
+				test->fail = true;
+			else if (!supported)
+				test->adjust_tail_support = false;
+			else
+				test->fail = true;
+		}
+	}
+
+	pthread_exit(NULL);
+}
+
+static void testapp_clean_xsk_umem(struct ifobject *ifobj)
+{
+	u64 umem_sz = ifobj->umem->num_frames * ifobj->umem->frame_size;
+
+	if (ifobj->shared_umem)
+		umem_sz *= 2;
+
+	umem_sz = ceil_u64(umem_sz, HUGEPAGE_SIZE) * HUGEPAGE_SIZE;
+	xsk_umem__delete(ifobj->umem->umem);
+	munmap(ifobj->umem->buffer, umem_sz);
+}
+
+static void handler(int signum)
+{
+	pthread_exit(NULL);
+}
+
+static bool xdp_prog_changed_rx(struct test_spec *test)
+{
+	struct ifobject *ifobj = test->ifobj_rx;
+
+	return ifobj->xdp_prog != test->xdp_prog_rx || ifobj->mode != test->mode;
+}
+
+static bool xdp_prog_changed_tx(struct test_spec *test)
+{
+	struct ifobject *ifobj = test->ifobj_tx;
+
+	return ifobj->xdp_prog != test->xdp_prog_tx || ifobj->mode != test->mode;
+}
+
+static int xsk_reattach_xdp(struct ifobject *ifobj, struct bpf_program *xdp_prog,
+			     struct bpf_map *xskmap, enum test_mode mode)
+{
+	int err;
+
+	xsk_detach_xdp_program(ifobj->ifindex, mode_to_xdp_flags(ifobj->mode));
+	err = xsk_attach_xdp_program(xdp_prog, ifobj->ifindex, mode_to_xdp_flags(mode));
+	if (err) {
+		ksft_print_msg("Error attaching XDP program\n");
+		return err;
+	}
+
+	if (ifobj->mode != mode && (mode == TEST_MODE_DRV || mode == TEST_MODE_ZC))
+		if (!xsk_is_in_mode(ifobj->ifindex, XDP_FLAGS_DRV_MODE)) {
+			ksft_print_msg("ERROR: XDP prog not in DRV mode\n");
+			return -EINVAL;
+		}
+
+	ifobj->xdp_prog = xdp_prog;
+	ifobj->xskmap = xskmap;
+	ifobj->mode = mode;
+
+	return 0;
+}
+
+static int xsk_attach_xdp_progs(struct test_spec *test, struct ifobject *ifobj_rx,
+				 struct ifobject *ifobj_tx)
+{
+	int err = 0;
+
+	if (xdp_prog_changed_rx(test)) {
+		err = xsk_reattach_xdp(ifobj_rx, test->xdp_prog_rx, test->xskmap_rx, test->mode);
+		if (err)
+			return err;
+	}
+
+	if (!ifobj_tx || ifobj_tx->shared_umem)
+		return 0;
+
+	if (xdp_prog_changed_tx(test))
+		err = xsk_reattach_xdp(ifobj_tx, test->xdp_prog_tx, test->xskmap_tx, test->mode);
+
+	return err;
+}
+
+static void clean_sockets(struct test_spec *test, struct ifobject *ifobj)
+{
+	u32 i;
+
+	if (!ifobj || !test)
+		return;
+
+	for (i = 0; i < test->nb_sockets; i++)
+		xsk_socket__delete(ifobj->xsk_arr[i].xsk);
+}
+
+static void clean_umem(struct test_spec *test, struct ifobject *ifobj1, struct ifobject *ifobj2)
+{
+	if (!ifobj1)
+		return;
+
+	testapp_clean_xsk_umem(ifobj1);
+	if (ifobj2 && !ifobj2->shared_umem)
+		testapp_clean_xsk_umem(ifobj2);
+}
+
+static int __testapp_validate_traffic(struct test_spec *test, struct ifobject *ifobj1,
+				      struct ifobject *ifobj2)
+{
+	pthread_t t0, t1;
+	int err;
+
+	if (test->mtu > MAX_ETH_PKT_SIZE) {
+		if (test->mode == TEST_MODE_ZC && (!ifobj1->multi_buff_zc_supp ||
+						   (ifobj2 && !ifobj2->multi_buff_zc_supp))) {
+			ksft_print_msg("Multi buffer for zero-copy not supported.\n");
+			return TEST_SKIP;
+		}
+		if (test->mode != TEST_MODE_ZC && (!ifobj1->multi_buff_supp ||
+						   (ifobj2 && !ifobj2->multi_buff_supp))) {
+			ksft_print_msg("Multi buffer not supported.\n");
+			return TEST_SKIP;
+		}
+	}
+	err = test_spec_set_mtu(test, test->mtu);
+	if (err) {
+		ksft_print_msg("Error, could not set mtu.\n");
+		return TEST_FAILURE;
+	}
+
+	if (ifobj2) {
+		if (pthread_barrier_init(&barr, NULL, 2))
+			return TEST_FAILURE;
+		pkt_stream_reset(ifobj2->xsk->pkt_stream);
+	}
+
+	test->current_step++;
+	pkt_stream_reset(ifobj1->xsk->pkt_stream);
+	pkts_in_flight = 0;
+
+	signal(SIGUSR1, handler);
+	/*Spawn RX thread */
+	pthread_create(&t0, NULL, ifobj1->func_ptr, test);
+
+	if (ifobj2) {
+		pthread_barrier_wait(&barr);
+		if (pthread_barrier_destroy(&barr)) {
+			pthread_kill(t0, SIGUSR1);
+			clean_sockets(test, ifobj1);
+			clean_umem(test, ifobj1, NULL);
+			return TEST_FAILURE;
+		}
+
+		/*Spawn TX thread */
+		pthread_create(&t1, NULL, ifobj2->func_ptr, test);
+
+		pthread_join(t1, NULL);
+	}
+
+	if (!ifobj2)
+		pthread_kill(t0, SIGUSR1);
+	else
+		pthread_join(t0, NULL);
+
+	if (test->total_steps == test->current_step || test->fail) {
+		clean_sockets(test, ifobj1);
+		clean_sockets(test, ifobj2);
+		clean_umem(test, ifobj1, ifobj2);
+	}
+
+	if (test->fail)
+		return TEST_FAILURE;
+
+	return TEST_PASS;
+}
+
+static int testapp_validate_traffic(struct test_spec *test)
+{
+	struct ifobject *ifobj_rx = test->ifobj_rx;
+	struct ifobject *ifobj_tx = test->ifobj_tx;
+
+	if ((ifobj_rx->umem->unaligned_mode && !ifobj_rx->unaligned_supp) ||
+	    (ifobj_tx->umem->unaligned_mode && !ifobj_tx->unaligned_supp)) {
+		ksft_print_msg("No huge pages present.\n");
+		return TEST_SKIP;
+	}
+
+	if (test->set_ring) {
+		if (ifobj_tx->hw_ring_size_supp) {
+			if (set_ring_size(ifobj_tx)) {
+				ksft_print_msg("Failed to change HW ring size.\n");
+				return TEST_FAILURE;
+			}
+		} else {
+			ksft_print_msg("Changing HW ring size not supported.\n");
+			return TEST_SKIP;
+		}
+	}
+
+	if (xsk_attach_xdp_progs(test, ifobj_rx, ifobj_tx))
+		return TEST_FAILURE;
+	return __testapp_validate_traffic(test, ifobj_rx, ifobj_tx);
+}
+
+static int testapp_validate_traffic_single_thread(struct test_spec *test, struct ifobject *ifobj)
+{
+	return __testapp_validate_traffic(test, ifobj, NULL);
+}
+
+int testapp_teardown(struct test_spec *test)
+{
+	int i;
+
+	for (i = 0; i < MAX_TEARDOWN_ITER; i++) {
+		if (testapp_validate_traffic(test))
+			return TEST_FAILURE;
+		test_spec_reset(test);
+	}
+
+	return TEST_PASS;
+}
+
+static void swap_directions(struct ifobject **ifobj1, struct ifobject **ifobj2)
+{
+	thread_func_t tmp_func_ptr = (*ifobj1)->func_ptr;
+	struct ifobject *tmp_ifobj = (*ifobj1);
+
+	(*ifobj1)->func_ptr = (*ifobj2)->func_ptr;
+	(*ifobj2)->func_ptr = tmp_func_ptr;
+
+	*ifobj1 = *ifobj2;
+	*ifobj2 = tmp_ifobj;
+}
+
+int testapp_bidirectional(struct test_spec *test)
+{
+	int res;
+
+	test->ifobj_tx->rx_on = true;
+	test->ifobj_rx->tx_on = true;
+	test->total_steps = 2;
+	if (testapp_validate_traffic(test))
+		return TEST_FAILURE;
+
+	print_verbose("Switching Tx/Rx direction\n");
+	swap_directions(&test->ifobj_rx, &test->ifobj_tx);
+	res = __testapp_validate_traffic(test, test->ifobj_rx, test->ifobj_tx);
+
+	swap_directions(&test->ifobj_rx, &test->ifobj_tx);
+	return res;
+}
+
+static int swap_xsk_resources(struct test_spec *test)
+{
+	int ret;
+
+	test->ifobj_tx->xsk_arr[0].pkt_stream = NULL;
+	test->ifobj_rx->xsk_arr[0].pkt_stream = NULL;
+	test->ifobj_tx->xsk_arr[1].pkt_stream = test->tx_pkt_stream_default;
+	test->ifobj_rx->xsk_arr[1].pkt_stream = test->rx_pkt_stream_default;
+	test->ifobj_tx->xsk = &test->ifobj_tx->xsk_arr[1];
+	test->ifobj_rx->xsk = &test->ifobj_rx->xsk_arr[1];
+
+	ret = xsk_update_xskmap(test->ifobj_rx->xskmap, test->ifobj_rx->xsk->xsk, 0);
+	if (ret)
+		return TEST_FAILURE;
+
+	return TEST_PASS;
+}
+
+int testapp_xdp_prog_cleanup(struct test_spec *test)
+{
+	test->total_steps = 2;
+	test->nb_sockets = 2;
+	if (testapp_validate_traffic(test))
+		return TEST_FAILURE;
+
+	if (swap_xsk_resources(test)) {
+		clean_sockets(test, test->ifobj_rx);
+		clean_sockets(test, test->ifobj_tx);
+		clean_umem(test, test->ifobj_rx, test->ifobj_tx);
+		return TEST_FAILURE;
+	}
+
+	return testapp_validate_traffic(test);
+}
+
+int testapp_headroom(struct test_spec *test)
+{
+	test->ifobj_rx->umem->frame_headroom = UMEM_HEADROOM_TEST_SIZE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_stats_rx_dropped(struct test_spec *test)
+{
+	if (test->mode == TEST_MODE_ZC) {
+		ksft_print_msg("Can not run RX_DROPPED test for ZC mode\n");
+		return TEST_SKIP;
+	}
+
+	if (pkt_stream_replace_half(test, MIN_PKT_SIZE * 4, 0))
+		return TEST_FAILURE;
+	test->ifobj_rx->umem->frame_headroom = test->ifobj_rx->umem->frame_size -
+		XDP_PACKET_HEADROOM - MIN_PKT_SIZE * 3;
+	if (pkt_stream_receive_half(test))
+		return TEST_FAILURE;
+	test->ifobj_rx->validation_func = validate_rx_dropped;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_stats_tx_invalid_descs(struct test_spec *test)
+{
+	if (pkt_stream_replace_half(test, XSK_UMEM__INVALID_FRAME_SIZE, 0))
+		return TEST_FAILURE;
+	test->ifobj_tx->validation_func = validate_tx_invalid_descs;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_stats_rx_full(struct test_spec *test)
+{
+	if (pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE))
+		return TEST_FAILURE;
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+
+	test->ifobj_rx->xsk->rxqsize = DEFAULT_UMEM_BUFFERS;
+	test->ifobj_rx->release_rx = false;
+	test->ifobj_rx->validation_func = validate_rx_full;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_stats_fill_empty(struct test_spec *test)
+{
+	if (pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE))
+		return TEST_FAILURE;
+	test->ifobj_rx->xsk->pkt_stream = pkt_stream_generate(DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
+
+	test->ifobj_rx->use_fill_ring = false;
+	test->ifobj_rx->validation_func = validate_fill_empty;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_send_receive_unaligned(struct test_spec *test)
+{
+	test->ifobj_tx->umem->unaligned_mode = true;
+	test->ifobj_rx->umem->unaligned_mode = true;
+	/* Let half of the packets straddle a 4K buffer boundary */
+	if (pkt_stream_replace_half(test, MIN_PKT_SIZE, -MIN_PKT_SIZE / 2))
+		return TEST_FAILURE;
+
+	return testapp_validate_traffic(test);
+}
+
+int testapp_send_receive_unaligned_mb(struct test_spec *test)
+{
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	test->ifobj_tx->umem->unaligned_mode = true;
+	test->ifobj_rx->umem->unaligned_mode = true;
+	if (pkt_stream_replace(test, DEFAULT_PKT_CNT, MAX_ETH_JUMBO_SIZE))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_single_pkt(struct test_spec *test)
+{
+	struct pkt pkts[] = {{0, MIN_PKT_SIZE, 0, true}};
+
+	if (pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts)))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_send_receive_mb(struct test_spec *test)
+{
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	if (pkt_stream_replace(test, DEFAULT_PKT_CNT, MAX_ETH_JUMBO_SIZE))
+		return TEST_FAILURE;
+
+	return testapp_validate_traffic(test);
+}
+
+int testapp_invalid_desc_mb(struct test_spec *test)
+{
+	struct xsk_umem_info *umem = test->ifobj_tx->umem;
+	u64 umem_size = umem->num_frames * umem->frame_size;
+	struct pkt pkts[] = {
+		/* Valid packet for synch to start with */
+		{0, MIN_PKT_SIZE, 0, true, 0},
+		/* Zero frame len is not legal */
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{0, 0, 0, false, 0},
+		/* Invalid address in the second frame */
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{umem_size, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		/* Invalid len in the middle */
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{0, XSK_UMEM__INVALID_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		/* Invalid options in the middle */
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XSK_DESC__INVALID_OPTION},
+		/* Transmit 2 frags, receive 3 */
+		{0, XSK_UMEM__MAX_FRAME_SIZE, 0, true, XDP_PKT_CONTD},
+		{0, XSK_UMEM__MAX_FRAME_SIZE, 0, true, 0},
+		/* Middle frame crosses chunk boundary with small length */
+		{0, XSK_UMEM__LARGE_FRAME_SIZE, 0, false, XDP_PKT_CONTD},
+		{-MIN_PKT_SIZE / 2, MIN_PKT_SIZE, 0, false, 0},
+		/* Valid packet for synch so that something is received */
+		{0, MIN_PKT_SIZE, 0, true, 0}};
+
+	if (umem->unaligned_mode) {
+		/* Crossing a chunk boundary allowed */
+		pkts[12].valid = true;
+		pkts[13].valid = true;
+	}
+
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	if (pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts)))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_invalid_desc(struct test_spec *test)
+{
+	struct xsk_umem_info *umem = test->ifobj_tx->umem;
+	u64 umem_size = umem->num_frames * umem->frame_size;
+	struct pkt pkts[] = {
+		/* Zero packet address allowed */
+		{0, MIN_PKT_SIZE, 0, true},
+		/* Allowed packet */
+		{0, MIN_PKT_SIZE, 0, true},
+		/* Straddling the start of umem */
+		{-2, MIN_PKT_SIZE, 0, false},
+		/* Packet too large */
+		{0, XSK_UMEM__INVALID_FRAME_SIZE, 0, false},
+		/* Up to end of umem allowed */
+		{umem_size - MIN_PKT_SIZE - 2 * umem->frame_size, MIN_PKT_SIZE, 0, true},
+		/* After umem ends */
+		{umem_size, MIN_PKT_SIZE, 0, false},
+		/* Straddle the end of umem */
+		{umem_size - MIN_PKT_SIZE / 2, MIN_PKT_SIZE, 0, false},
+		/* Straddle a 4K boundary */
+		{0x1000 - MIN_PKT_SIZE / 2, MIN_PKT_SIZE, 0, false},
+		/* Straddle a 2K boundary */
+		{0x800 - MIN_PKT_SIZE / 2, MIN_PKT_SIZE, 0, true},
+		/* Valid packet for synch so that something is received */
+		{0, MIN_PKT_SIZE, 0, true}};
+
+	if (umem->unaligned_mode) {
+		/* Crossing a page boundary allowed */
+		pkts[7].valid = true;
+	}
+	if (umem->frame_size == XSK_UMEM__DEFAULT_FRAME_SIZE / 2) {
+		/* Crossing a 2K frame size boundary not allowed */
+		pkts[8].valid = false;
+	}
+
+	if (test->ifobj_tx->shared_umem) {
+		pkts[4].offset += umem_size;
+		pkts[5].offset += umem_size;
+		pkts[6].offset += umem_size;
+	}
+
+	if (pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts)))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_xdp_drop(struct test_spec *test)
+{
+	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
+	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
+
+	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_drop, skel_tx->progs.xsk_xdp_drop,
+			       skel_rx->maps.xsk, skel_tx->maps.xsk);
+
+	if (pkt_stream_receive_half(test))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_xdp_metadata_copy(struct test_spec *test)
+{
+	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
+	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
+
+	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_populate_metadata,
+			       skel_tx->progs.xsk_xdp_populate_metadata,
+			       skel_rx->maps.xsk, skel_tx->maps.xsk);
+	test->ifobj_rx->use_metadata = true;
+
+	skel_rx->bss->count = 0;
+
+	return testapp_validate_traffic(test);
+}
+
+int testapp_xdp_shared_umem(struct test_spec *test)
+{
+	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
+	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
+	int ret;
+
+	test->total_steps = 1;
+	test->nb_sockets = 2;
+
+	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_shared_umem,
+			       skel_tx->progs.xsk_xdp_shared_umem,
+			       skel_rx->maps.xsk, skel_tx->maps.xsk);
+
+	if (pkt_stream_even_odd_sequence(test))
+		return TEST_FAILURE;
+
+	ret = testapp_validate_traffic(test);
+
+	release_even_odd_sequence(test);
+
+	return ret;
+}
+
+int testapp_poll_txq_tmout(struct test_spec *test)
+{
+	test->ifobj_tx->use_poll = true;
+	/* create invalid frame by set umem frame_size and pkt length equal to 2048 */
+	test->ifobj_tx->umem->frame_size = 2048;
+	if (pkt_stream_replace(test, 2 * DEFAULT_PKT_CNT, 2048))
+		return TEST_FAILURE;
+	return testapp_validate_traffic_single_thread(test, test->ifobj_tx);
+}
+
+int testapp_poll_rxq_tmout(struct test_spec *test)
+{
+	test->ifobj_rx->use_poll = true;
+	return testapp_validate_traffic_single_thread(test, test->ifobj_rx);
+}
+
+int testapp_too_many_frags(struct test_spec *test)
+{
+	struct pkt *pkts;
+	u32 max_frags, i;
+	int ret = TEST_FAILURE;
+
+	if (test->mode == TEST_MODE_ZC) {
+		max_frags = test->ifobj_tx->xdp_zc_max_segs;
+	} else {
+		max_frags = get_max_skb_frags();
+		if (!max_frags) {
+			ksft_print_msg("Can't get MAX_SKB_FRAGS from system, using default (17)\n");
+			max_frags = 17;
+		}
+		max_frags += 1;
+	}
+
+	pkts = calloc(2 * max_frags + 2, sizeof(struct pkt));
+	if (!pkts)
+		return TEST_FAILURE;
+
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+
+	/* Valid packet for synch */
+	pkts[0].len = MIN_PKT_SIZE;
+	pkts[0].valid = true;
+
+	/* One valid packet with the max amount of frags */
+	for (i = 1; i < max_frags + 1; i++) {
+		pkts[i].len = MIN_PKT_SIZE;
+		pkts[i].options = XDP_PKT_CONTD;
+		pkts[i].valid = true;
+	}
+	pkts[max_frags].options = 0;
+
+	/* An invalid packet with the max amount of frags but signals packet
+	 * continues on the last frag
+	 */
+	for (i = max_frags + 1; i < 2 * max_frags + 1; i++) {
+		pkts[i].len = MIN_PKT_SIZE;
+		pkts[i].options = XDP_PKT_CONTD;
+		pkts[i].valid = false;
+	}
+
+	/* Valid packet for synch */
+	pkts[2 * max_frags + 1].len = MIN_PKT_SIZE;
+	pkts[2 * max_frags + 1].valid = true;
+
+	if (pkt_stream_generate_custom(test, pkts, 2 * max_frags + 2)) {
+		free(pkts);
+		return TEST_FAILURE;
+	}
+
+	ret = testapp_validate_traffic(test);
+	free(pkts);
+	return ret;
+}
+
+static int xsk_load_xdp_programs(struct ifobject *ifobj)
+{
+	ifobj->xdp_progs = xsk_xdp_progs__open_and_load();
+	if (libbpf_get_error(ifobj->xdp_progs))
+		return libbpf_get_error(ifobj->xdp_progs);
+
+	return 0;
+}
+
+/* Simple test */
+static bool hugepages_present(void)
+{
+	size_t mmap_sz = 2 * DEFAULT_UMEM_BUFFERS * XSK_UMEM__DEFAULT_FRAME_SIZE;
+	void *bufs;
+
+	bufs = mmap(NULL, mmap_sz, PROT_READ | PROT_WRITE,
+		    MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, MAP_HUGE_2MB);
+	if (bufs == MAP_FAILED)
+		return false;
+
+	mmap_sz = ceil_u64(mmap_sz, HUGEPAGE_SIZE) * HUGEPAGE_SIZE;
+	munmap(bufs, mmap_sz);
+	return true;
+}
+
+int init_iface(struct ifobject *ifobj, thread_func_t func_ptr)
+{
+	LIBBPF_OPTS(bpf_xdp_query_opts, query_opts);
+	int err;
+
+	ifobj->func_ptr = func_ptr;
+
+	err = xsk_load_xdp_programs(ifobj);
+	if (err) {
+		ksft_print_msg("Error loading XDP program\n");
+		return err;
+	}
+
+	if (hugepages_present())
+		ifobj->unaligned_supp = true;
+
+	err = bpf_xdp_query(ifobj->ifindex, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (err) {
+		ksft_print_msg("Error querying XDP capabilities\n");
+		return err;
+	}
+	if (query_opts.feature_flags & NETDEV_XDP_ACT_RX_SG)
+		ifobj->multi_buff_supp = true;
+	if (query_opts.feature_flags & NETDEV_XDP_ACT_XSK_ZEROCOPY) {
+		if (query_opts.xdp_zc_max_segs > 1) {
+			ifobj->multi_buff_zc_supp = true;
+			ifobj->xdp_zc_max_segs = query_opts.xdp_zc_max_segs;
+		} else {
+			ifobj->xdp_zc_max_segs = 0;
+		}
+	}
+
+	return 0;
+}
+
+int testapp_send_receive(struct test_spec *test)
+{
+	return testapp_validate_traffic(test);
+}
+
+int testapp_send_receive_2k_frame(struct test_spec *test)
+{
+	test->ifobj_tx->umem->frame_size = 2048;
+	test->ifobj_rx->umem->frame_size = 2048;
+	if (pkt_stream_replace(test, DEFAULT_PKT_CNT, MIN_PKT_SIZE))
+		return TEST_FAILURE;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_poll_rx(struct test_spec *test)
+{
+	test->ifobj_rx->use_poll = true;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_poll_tx(struct test_spec *test)
+{
+	test->ifobj_tx->use_poll = true;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_aligned_inv_desc(struct test_spec *test)
+{
+	return testapp_invalid_desc(test);
+}
+
+int testapp_aligned_inv_desc_2k_frame(struct test_spec *test)
+{
+	test->ifobj_tx->umem->frame_size = 2048;
+	test->ifobj_rx->umem->frame_size = 2048;
+	return testapp_invalid_desc(test);
+}
+
+int testapp_unaligned_inv_desc(struct test_spec *test)
+{
+	test->ifobj_tx->umem->unaligned_mode = true;
+	test->ifobj_rx->umem->unaligned_mode = true;
+	return testapp_invalid_desc(test);
+}
+
+int testapp_unaligned_inv_desc_4001_frame(struct test_spec *test)
+{
+	u64 page_size, umem_size;
+
+	/* Odd frame size so the UMEM doesn't end near a page boundary. */
+	test->ifobj_tx->umem->frame_size = 4001;
+	test->ifobj_rx->umem->frame_size = 4001;
+	test->ifobj_tx->umem->unaligned_mode = true;
+	test->ifobj_rx->umem->unaligned_mode = true;
+	/* This test exists to test descriptors that staddle the end of
+	 * the UMEM but not a page.
+	 */
+	page_size = sysconf(_SC_PAGESIZE);
+	umem_size = test->ifobj_tx->umem->num_frames * test->ifobj_tx->umem->frame_size;
+	assert(umem_size % page_size > MIN_PKT_SIZE);
+	assert(umem_size % page_size < page_size - MIN_PKT_SIZE);
+
+	return testapp_invalid_desc(test);
+}
+
+int testapp_aligned_inv_desc_mb(struct test_spec *test)
+{
+	return testapp_invalid_desc_mb(test);
+}
+
+int testapp_unaligned_inv_desc_mb(struct test_spec *test)
+{
+	test->ifobj_tx->umem->unaligned_mode = true;
+	test->ifobj_rx->umem->unaligned_mode = true;
+	return testapp_invalid_desc_mb(test);
+}
+
+int testapp_xdp_metadata(struct test_spec *test)
+{
+	return testapp_xdp_metadata_copy(test);
+}
+
+int testapp_xdp_metadata_mb(struct test_spec *test)
+{
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	return testapp_xdp_metadata_copy(test);
+}
+
+int testapp_hw_sw_min_ring_size(struct test_spec *test)
+{
+	int ret;
+
+	test->set_ring = true;
+	test->total_steps = 2;
+	test->ifobj_tx->ring.tx_pending = DEFAULT_BATCH_SIZE;
+	test->ifobj_tx->ring.rx_pending = DEFAULT_BATCH_SIZE * 2;
+	test->ifobj_tx->xsk->batch_size = 1;
+	test->ifobj_rx->xsk->batch_size = 1;
+	ret = testapp_validate_traffic(test);
+	if (ret)
+		return ret;
+
+	/* Set batch size to hw_ring_size - 1 */
+	test->ifobj_tx->xsk->batch_size = DEFAULT_BATCH_SIZE - 1;
+	test->ifobj_rx->xsk->batch_size = DEFAULT_BATCH_SIZE - 1;
+	return testapp_validate_traffic(test);
+}
+
+int testapp_hw_sw_max_ring_size(struct test_spec *test)
+{
+	u32 max_descs = XSK_RING_PROD__DEFAULT_NUM_DESCS * 4;
+	int ret;
+
+	test->set_ring = true;
+	test->total_steps = 2;
+	test->ifobj_tx->ring.tx_pending = test->ifobj_tx->ring.tx_max_pending;
+	test->ifobj_tx->ring.rx_pending  = test->ifobj_tx->ring.rx_max_pending;
+	test->ifobj_rx->umem->num_frames = max_descs;
+	test->ifobj_rx->umem->fill_size = max_descs;
+	test->ifobj_rx->umem->comp_size = max_descs;
+	test->ifobj_tx->xsk->batch_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+	test->ifobj_rx->xsk->batch_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+
+	ret = testapp_validate_traffic(test);
+	if (ret)
+		return ret;
+
+	/* Set batch_size to 8152 for testing, as the ice HW ignores the 3 lowest bits when
+	 * updating the Rx HW tail register.
+	 */
+	test->ifobj_tx->xsk->batch_size = test->ifobj_tx->ring.tx_max_pending - 8;
+	test->ifobj_rx->xsk->batch_size = test->ifobj_tx->ring.tx_max_pending - 8;
+	if (pkt_stream_replace(test, max_descs, MIN_PKT_SIZE)) {
+		clean_sockets(test, test->ifobj_tx);
+		clean_sockets(test, test->ifobj_rx);
+		clean_umem(test, test->ifobj_rx, test->ifobj_tx);
+		return TEST_FAILURE;
+	}
+
+	return testapp_validate_traffic(test);
+}
+
+static int testapp_xdp_adjust_tail(struct test_spec *test, int adjust_value)
+{
+	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
+	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
+
+	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_adjust_tail,
+			       skel_tx->progs.xsk_xdp_adjust_tail,
+			       skel_rx->maps.xsk, skel_tx->maps.xsk);
+
+	skel_rx->bss->adjust_value = adjust_value;
+
+	return testapp_validate_traffic(test);
+}
+
+static int testapp_adjust_tail(struct test_spec *test, u32 value, u32 pkt_len)
+{
+	int ret;
+
+	test->adjust_tail_support = true;
+	test->adjust_tail = true;
+	test->total_steps = 1;
+
+	ret = pkt_stream_replace_ifobject(test->ifobj_tx, DEFAULT_BATCH_SIZE, pkt_len);
+	if (ret)
+		return TEST_FAILURE;
+
+	ret = pkt_stream_replace_ifobject(test->ifobj_rx, DEFAULT_BATCH_SIZE, pkt_len + value);
+	if (ret)
+		return TEST_FAILURE;
+
+	ret = testapp_xdp_adjust_tail(test, value);
+	if (ret)
+		return ret;
+
+	if (!test->adjust_tail_support) {
+		ksft_print_msg("%s %sResize pkt with bpf_xdp_adjust_tail() not supported\n",
+				      mode_string(test), busy_poll_string(test));
+		return TEST_SKIP;
+	}
+
+	return 0;
+}
+
+int testapp_adjust_tail_shrink(struct test_spec *test)
+{
+	/* Shrink by 4 bytes for testing purpose */
+	return testapp_adjust_tail(test, -4, MIN_PKT_SIZE * 2);
+}
+
+int testapp_adjust_tail_shrink_mb(struct test_spec *test)
+{
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	/* Shrink by the frag size */
+	return testapp_adjust_tail(test, -XSK_UMEM__MAX_FRAME_SIZE, XSK_UMEM__LARGE_FRAME_SIZE * 2);
+}
+
+int testapp_adjust_tail_grow(struct test_spec *test)
+{
+	/* Grow by 4 bytes for testing purpose */
+	return testapp_adjust_tail(test, 4, MIN_PKT_SIZE * 2);
+}
+
+int testapp_adjust_tail_grow_mb(struct test_spec *test)
+{
+	test->mtu = MAX_ETH_JUMBO_SIZE;
+	/* Grow by (frag_size - last_frag_Size) - 1 to stay inside the last fragment */
+	return testapp_adjust_tail(test, (XSK_UMEM__MAX_FRAME_SIZE / 2) - 1,
+				   XSK_UMEM__LARGE_FRAME_SIZE * 2);
+}
+
+int testapp_tx_queue_consumer(struct test_spec *test)
+{
+	int nr_packets;
+
+	if (test->mode == TEST_MODE_ZC) {
+		ksft_print_msg("Can not run TX_QUEUE_CONSUMER test for ZC mode\n");
+		return TEST_SKIP;
+	}
+
+	nr_packets = MAX_TX_BUDGET_DEFAULT + 1;
+	if (pkt_stream_replace(test, nr_packets, MIN_PKT_SIZE))
+		return TEST_FAILURE;
+	test->ifobj_tx->xsk->batch_size = nr_packets;
+	test->ifobj_tx->xsk->check_consumer = true;
+
+	return testapp_validate_traffic(test);
+}
+
+struct ifobject *ifobject_create(void)
+{
+	struct ifobject *ifobj;
+
+	ifobj = calloc(1, sizeof(struct ifobject));
+	if (!ifobj)
+		return NULL;
+
+	ifobj->xsk_arr = calloc(MAX_SOCKETS, sizeof(*ifobj->xsk_arr));
+	if (!ifobj->xsk_arr)
+		goto out_xsk_arr;
+
+	ifobj->umem = calloc(1, sizeof(*ifobj->umem));
+	if (!ifobj->umem)
+		goto out_umem;
+
+	return ifobj;
+
+out_umem:
+	free(ifobj->xsk_arr);
+out_xsk_arr:
+	free(ifobj);
+	return NULL;
+}
+
+void ifobject_delete(struct ifobject *ifobj)
+{
+	free(ifobj->umem);
+	free(ifobj->xsk_arr);
+	free(ifobj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/test_xsk.h b/tools/testing/selftests/bpf/prog_tests/test_xsk.h
new file mode 100644
index 000000000000..8fc78a057de0
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/test_xsk.h
@@ -0,0 +1,298 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef TEST_XSK_H_
+#define TEST_XSK_H_
+
+#include <linux/ethtool.h>
+#include <linux/if_xdp.h>
+
+#include "../kselftest.h"
+#include "xsk.h"
+
+#ifndef SO_PREFER_BUSY_POLL
+#define SO_PREFER_BUSY_POLL 69
+#endif
+
+#ifndef SO_BUSY_POLL_BUDGET
+#define SO_BUSY_POLL_BUDGET 70
+#endif
+
+#define TEST_PASS 0
+#define TEST_FAILURE -1
+#define TEST_CONTINUE 1
+#define TEST_SKIP 2
+
+#define DEFAULT_PKT_CNT			(4 * 1024)
+#define DEFAULT_UMEM_BUFFERS		(DEFAULT_PKT_CNT / 4)
+#define HUGEPAGE_SIZE			(2 * 1024 * 1024)
+#define MIN_PKT_SIZE			64
+#define MAX_ETH_PKT_SIZE		1518
+#define MAX_INTERFACE_NAME_CHARS	16
+#define MAX_TEST_NAME_SIZE		48
+#define SOCK_RECONF_CTR			10
+#define USLEEP_MAX			10000
+
+extern bool opt_verbose;
+#define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0)
+
+
+static inline u32 ceil_u32(u32 a, u32 b)
+{
+	return (a + b - 1) / b;
+}
+
+static inline u64 ceil_u64(u64 a, u64 b)
+{
+	return (a + b - 1) / b;
+}
+
+/* Simple test */
+enum test_mode {
+	TEST_MODE_SKB,
+	TEST_MODE_DRV,
+	TEST_MODE_ZC,
+	TEST_MODE_ALL
+};
+
+struct ifobject;
+struct test_spec;
+typedef int (*validation_func_t)(struct ifobject *ifobj);
+typedef void *(*thread_func_t)(void *arg);
+typedef int (*test_func_t)(struct test_spec *test);
+
+struct xsk_socket_info {
+	struct xsk_ring_cons rx;
+	struct xsk_ring_prod tx;
+	struct xsk_umem_info *umem;
+	struct xsk_socket *xsk;
+	struct pkt_stream *pkt_stream;
+	u32 outstanding_tx;
+	u32 rxqsize;
+	u32 batch_size;
+	u8 dst_mac[ETH_ALEN];
+	u8 src_mac[ETH_ALEN];
+	bool check_consumer;
+};
+
+int kick_rx(struct xsk_socket_info *xsk);
+int kick_tx(struct xsk_socket_info *xsk);
+
+struct xsk_umem_info {
+	struct xsk_ring_prod fq;
+	struct xsk_ring_cons cq;
+	struct xsk_umem *umem;
+	u64 next_buffer;
+	u32 num_frames;
+	u32 frame_headroom;
+	void *buffer;
+	u32 frame_size;
+	u32 base_addr;
+	u32 fill_size;
+	u32 comp_size;
+	bool unaligned_mode;
+};
+
+struct set_hw_ring {
+	u32 default_tx;
+	u32 default_rx;
+};
+
+int hw_ring_size_reset(struct ifobject *ifobj);
+
+struct ifobject {
+	char ifname[MAX_INTERFACE_NAME_CHARS];
+	struct xsk_socket_info *xsk;
+	struct xsk_socket_info *xsk_arr;
+	struct xsk_umem_info *umem;
+	thread_func_t func_ptr;
+	validation_func_t validation_func;
+	struct xsk_xdp_progs *xdp_progs;
+	struct bpf_map *xskmap;
+	struct bpf_program *xdp_prog;
+	struct ethtool_ringparam ring;
+	struct set_hw_ring set_ring;
+	enum test_mode mode;
+	int ifindex;
+	int mtu;
+	u32 bind_flags;
+	u32 xdp_zc_max_segs;
+	bool tx_on;
+	bool rx_on;
+	bool use_poll;
+	bool busy_poll;
+	bool use_fill_ring;
+	bool release_rx;
+	bool shared_umem;
+	bool use_metadata;
+	bool unaligned_supp;
+	bool multi_buff_supp;
+	bool multi_buff_zc_supp;
+	bool hw_ring_size_supp;
+};
+struct ifobject *ifobject_create(void);
+void ifobject_delete(struct ifobject *ifobj);
+int init_iface(struct ifobject *ifobj, thread_func_t func_ptr);
+
+int xsk_configure_umem(struct ifobject *ifobj, struct xsk_umem_info *umem, void *buffer, u64 size);
+int xsk_configure_socket(struct xsk_socket_info *xsk, struct xsk_umem_info *umem,
+			 struct ifobject *ifobject, bool shared);
+
+
+struct pkt {
+	int offset;
+	u32 len;
+	u32 pkt_nb;
+	bool valid;
+	u16 options;
+};
+
+struct pkt_stream {
+	u32 nb_pkts;
+	u32 current_pkt_nb;
+	struct pkt *pkts;
+	u32 max_pkt_len;
+	u32 nb_rx_pkts;
+	u32 nb_valid_entries;
+	bool verbatim;
+};
+
+static inline bool pkt_continues(u32 options)
+{
+	return options & XDP_PKT_CONTD;
+}
+
+struct pkt_stream *pkt_stream_generate(u32 nb_pkts, u32 pkt_len);
+void pkt_stream_delete(struct pkt_stream *pkt_stream);
+void pkt_stream_reset(struct pkt_stream *pkt_stream);
+void pkt_stream_restore_default(struct test_spec *test);
+
+struct test_spec {
+	struct ifobject *ifobj_tx;
+	struct ifobject *ifobj_rx;
+	struct pkt_stream *tx_pkt_stream_default;
+	struct pkt_stream *rx_pkt_stream_default;
+	struct bpf_program *xdp_prog_rx;
+	struct bpf_program *xdp_prog_tx;
+	struct bpf_map *xskmap_rx;
+	struct bpf_map *xskmap_tx;
+	test_func_t test_func;
+	int mtu;
+	u16 total_steps;
+	u16 current_step;
+	u16 nb_sockets;
+	bool fail;
+	bool set_ring;
+	bool adjust_tail;
+	bool adjust_tail_support;
+	enum test_mode mode;
+	char name[MAX_TEST_NAME_SIZE];
+};
+
+#define busy_poll_string(test) (test)->ifobj_tx->busy_poll ? "BUSY-POLL " : ""
+static inline char *mode_string(struct test_spec *test)
+{
+	switch (test->mode) {
+	case TEST_MODE_SKB:
+		return "SKB";
+	case TEST_MODE_DRV:
+		return "DRV";
+	case TEST_MODE_ZC:
+		return "ZC";
+	default:
+		return "BOGUS";
+	}
+}
+
+void test_init(struct test_spec *test, struct ifobject *ifobj_tx,
+	       struct ifobject *ifobj_rx, enum test_mode mode,
+	       const struct test_spec *test_to_run);
+
+int testapp_adjust_tail_grow(struct test_spec *test);
+int testapp_adjust_tail_grow_mb(struct test_spec *test);
+int testapp_adjust_tail_shrink(struct test_spec *test);
+int testapp_adjust_tail_shrink_mb(struct test_spec *test);
+int testapp_aligned_inv_desc(struct test_spec *test);
+int testapp_aligned_inv_desc_2k_frame(struct test_spec *test);
+int testapp_aligned_inv_desc_mb(struct test_spec *test);
+int testapp_bidirectional(struct test_spec *test);
+int testapp_headroom(struct test_spec *test);
+int testapp_hw_sw_max_ring_size(struct test_spec *test);
+int testapp_hw_sw_min_ring_size(struct test_spec *test);
+int testapp_poll_rx(struct test_spec *test);
+int testapp_poll_rxq_tmout(struct test_spec *test);
+int testapp_poll_tx(struct test_spec *test);
+int testapp_poll_txq_tmout(struct test_spec *test);
+int testapp_send_receive(struct test_spec *test);
+int testapp_send_receive_2k_frame(struct test_spec *test);
+int testapp_send_receive_mb(struct test_spec *test);
+int testapp_send_receive_unaligned(struct test_spec *test);
+int testapp_send_receive_unaligned_mb(struct test_spec *test);
+int testapp_single_pkt(struct test_spec *test);
+int testapp_stats_fill_empty(struct test_spec *test);
+int testapp_stats_rx_dropped(struct test_spec *test);
+int testapp_stats_tx_invalid_descs(struct test_spec *test);
+int testapp_stats_rx_full(struct test_spec *test);
+int testapp_teardown(struct test_spec *test);
+int testapp_too_many_frags(struct test_spec *test);
+int testapp_tx_queue_consumer(struct test_spec *test);
+int testapp_unaligned_inv_desc(struct test_spec *test);
+int testapp_unaligned_inv_desc_4001_frame(struct test_spec *test);
+int testapp_unaligned_inv_desc_mb(struct test_spec *test);
+int testapp_xdp_drop(struct test_spec *test);
+int testapp_xdp_metadata(struct test_spec *test);
+int testapp_xdp_metadata_mb(struct test_spec *test);
+int testapp_xdp_prog_cleanup(struct test_spec *test);
+int testapp_xdp_shared_umem(struct test_spec *test);
+
+void *worker_testapp_validate_rx(void *arg);
+void *worker_testapp_validate_tx(void *arg);
+
+static const struct test_spec tests[] = {
+	{.name = "SEND_RECEIVE", .test_func = testapp_send_receive},
+	{.name = "SEND_RECEIVE_2K_FRAME", .test_func = testapp_send_receive_2k_frame},
+	{.name = "SEND_RECEIVE_SINGLE_PKT", .test_func = testapp_single_pkt},
+	{.name = "POLL_RX", .test_func = testapp_poll_rx},
+	{.name = "POLL_TX", .test_func = testapp_poll_tx},
+	{.name = "POLL_RXQ_FULL", .test_func = testapp_poll_rxq_tmout},
+	{.name = "POLL_TXQ_FULL", .test_func = testapp_poll_txq_tmout},
+	{.name = "ALIGNED_INV_DESC", .test_func = testapp_aligned_inv_desc},
+	{.name = "ALIGNED_INV_DESC_2K_FRAME_SIZE", .test_func = testapp_aligned_inv_desc_2k_frame},
+	{.name = "UMEM_HEADROOM", .test_func = testapp_headroom},
+	{.name = "BIDIRECTIONAL", .test_func = testapp_bidirectional},
+	{.name = "STAT_RX_DROPPED", .test_func = testapp_stats_rx_dropped},
+	{.name = "STAT_TX_INVALID", .test_func = testapp_stats_tx_invalid_descs},
+	{.name = "STAT_RX_FULL", .test_func = testapp_stats_rx_full},
+	{.name = "STAT_FILL_EMPTY", .test_func = testapp_stats_fill_empty},
+	{.name = "XDP_PROG_CLEANUP", .test_func = testapp_xdp_prog_cleanup},
+	{.name = "XDP_DROP_HALF", .test_func = testapp_xdp_drop},
+	{.name = "XDP_SHARED_UMEM", .test_func = testapp_xdp_shared_umem},
+	{.name = "XDP_METADATA_COPY", .test_func = testapp_xdp_metadata},
+	{.name = "XDP_METADATA_COPY_MULTI_BUFF", .test_func = testapp_xdp_metadata_mb},
+	{.name = "ALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_aligned_inv_desc_mb},
+	{.name = "TOO_MANY_FRAGS", .test_func = testapp_too_many_frags},
+	{.name = "XDP_ADJUST_TAIL_SHRINK", .test_func = testapp_adjust_tail_shrink},
+	{.name = "TX_QUEUE_CONSUMER", .test_func = testapp_tx_queue_consumer},
+	};
+
+static const struct test_spec ci_skip_tests[] = {
+	/* Flaky tests */
+	{.name = "XDP_ADJUST_TAIL_SHRINK_MULTI_BUFF", .test_func = testapp_adjust_tail_shrink_mb},
+	{.name = "XDP_ADJUST_TAIL_GROW", .test_func = testapp_adjust_tail_grow},
+	{.name = "XDP_ADJUST_TAIL_GROW_MULTI_BUFF", .test_func = testapp_adjust_tail_grow_mb},
+	{.name = "SEND_RECEIVE_9K_PACKETS", .test_func = testapp_send_receive_mb},
+	/* Tests with huge page dependency */
+	{.name = "SEND_RECEIVE_UNALIGNED", .test_func = testapp_send_receive_unaligned},
+	{.name = "UNALIGNED_INV_DESC", .test_func = testapp_unaligned_inv_desc},
+	{.name = "UNALIGNED_INV_DESC_4001_FRAME_SIZE",
+	 .test_func = testapp_unaligned_inv_desc_4001_frame},
+	{.name = "SEND_RECEIVE_UNALIGNED_9K_PACKETS",
+	 .test_func = testapp_send_receive_unaligned_mb},
+	{.name = "UNALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_unaligned_inv_desc_mb},
+	/* Test with HW ring size dependency */
+	{.name = "HW_SW_MIN_RING_SIZE", .test_func = testapp_hw_sw_min_ring_size},
+	{.name = "HW_SW_MAX_RING_SIZE", .test_func = testapp_hw_sw_max_ring_size},
+	/* Too long test */
+	{.name = "TEARDOWN", .test_func = testapp_teardown},
+};
+
+
+#endif				/* TEST_XSK_H_ */
diff --git a/tools/testing/selftests/bpf/prog_tests/time_tai.c b/tools/testing/selftests/bpf/prog_tests/time_tai.c
new file mode 100644
index 000000000000..f45af1b0ef2c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/time_tai.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022 Linutronix GmbH */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "test_time_tai.skel.h"
+
+#include <time.h>
+#include <stdint.h>
+
+#define TAI_THRESHOLD	1000000000ULL /* 1s */
+#define NSEC_PER_SEC	1000000000ULL
+
+static __u64 ts_to_ns(const struct timespec *ts)
+{
+	return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
+}
+
+void test_time_tai(void)
+{
+	struct __sk_buff skb = {
+		.cb[0] = 0,
+		.cb[1] = 0,
+		.tstamp = 0,
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.ctx_in = &skb,
+		.ctx_size_in = sizeof(skb),
+		.ctx_out = &skb,
+		.ctx_size_out = sizeof(skb),
+	);
+	struct test_time_tai *skel;
+	struct timespec now_tai;
+	__u64 ts1, ts2, now;
+	int ret, prog_fd;
+
+	/* Open and load */
+	skel = test_time_tai__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "tai_open"))
+		return;
+
+	/* Run test program */
+	prog_fd = bpf_program__fd(skel->progs.time_tai);
+	ret = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(ret, "test_run");
+
+	/* Retrieve generated TAI timestamps */
+	ts1 = skb.tstamp;
+	ts2 = skb.cb[0] | ((__u64)skb.cb[1] << 32);
+
+	/* TAI != 0 */
+	ASSERT_NEQ(ts1, 0, "tai_ts1");
+	ASSERT_NEQ(ts2, 0, "tai_ts2");
+
+	/* TAI is moving forward only */
+	ASSERT_GE(ts2, ts1, "tai_forward");
+
+	/* Check for future */
+	ret = clock_gettime(CLOCK_TAI, &now_tai);
+	ASSERT_EQ(ret, 0, "tai_gettime");
+	now = ts_to_ns(&now_tai);
+
+	ASSERT_TRUE(now > ts1, "tai_future_ts1");
+	ASSERT_TRUE(now > ts2, "tai_future_ts2");
+
+	/* Check for reasonable range */
+	ASSERT_TRUE(now - ts1 < TAI_THRESHOLD, "tai_range_ts1");
+	ASSERT_TRUE(now - ts2 < TAI_THRESHOLD, "tai_range_ts2");
+
+	test_time_tai__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/timer.c b/tools/testing/selftests/bpf/prog_tests/timer.c
new file mode 100644
index 000000000000..34f9ccce2602
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/timer.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "timer.skel.h"
+#include "timer_failure.skel.h"
+#include "timer_interrupt.skel.h"
+
+#define NUM_THR 8
+
+static void *spin_lock_thread(void *arg)
+{
+	int i, err, prog_fd = *(int *)arg;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	for (i = 0; i < 10000; i++) {
+		err = bpf_prog_test_run_opts(prog_fd, &topts);
+		if (!ASSERT_OK(err, "test_run_opts err") ||
+		    !ASSERT_OK(topts.retval, "test_run_opts retval"))
+			break;
+	}
+
+	pthread_exit(arg);
+}
+
+static int timer(struct timer *timer_skel)
+{
+	int i, err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	pthread_t thread_id[NUM_THR];
+	void *ret;
+
+	err = timer__attach(timer_skel);
+	if (!ASSERT_OK(err, "timer_attach"))
+		return err;
+
+	ASSERT_EQ(timer_skel->data->callback_check, 52, "callback_check1");
+	ASSERT_EQ(timer_skel->data->callback2_check, 52, "callback2_check1");
+	ASSERT_EQ(timer_skel->bss->pinned_callback_check, 0, "pinned_callback_check1");
+
+	prog_fd = bpf_program__fd(timer_skel->progs.test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+	timer__detach(timer_skel);
+
+	usleep(50); /* 10 usecs should be enough, but give it extra */
+	/* check that timer_cb1() was executed 10+10 times */
+	ASSERT_EQ(timer_skel->data->callback_check, 42, "callback_check2");
+	ASSERT_EQ(timer_skel->data->callback2_check, 42, "callback2_check2");
+
+	/* check that timer_cb2() was executed twice */
+	ASSERT_EQ(timer_skel->bss->bss_data, 10, "bss_data");
+
+	/* check that timer_cb3() was executed twice */
+	ASSERT_EQ(timer_skel->bss->abs_data, 12, "abs_data");
+
+	/* check that timer_cb_pinned() was executed twice */
+	ASSERT_EQ(timer_skel->bss->pinned_callback_check, 2, "pinned_callback_check");
+
+	/* check that there were no errors in timer execution */
+	ASSERT_EQ(timer_skel->bss->err, 0, "err");
+
+	/* check that code paths completed */
+	ASSERT_EQ(timer_skel->bss->ok, 1 | 2 | 4, "ok");
+
+	prog_fd = bpf_program__fd(timer_skel->progs.race);
+	for (i = 0; i < NUM_THR; i++) {
+		err = pthread_create(&thread_id[i], NULL,
+				     &spin_lock_thread, &prog_fd);
+		if (!ASSERT_OK(err, "pthread_create"))
+			break;
+	}
+
+	while (i) {
+		err = pthread_join(thread_id[--i], &ret);
+		if (ASSERT_OK(err, "pthread_join"))
+			ASSERT_EQ(ret, (void *)&prog_fd, "pthread_join");
+	}
+
+	return 0;
+}
+
+/* TODO: use pid filtering */
+void serial_test_timer(void)
+{
+	struct timer *timer_skel = NULL;
+	int err;
+
+	timer_skel = timer__open_and_load();
+	if (!timer_skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
+		return;
+
+	err = timer(timer_skel);
+	ASSERT_OK(err, "timer");
+	timer__destroy(timer_skel);
+
+	RUN_TESTS(timer_failure);
+}
+
+void test_timer_interrupt(void)
+{
+	struct timer_interrupt *skel = NULL;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+	skel = timer_interrupt__open_and_load();
+	if (!skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(skel, "timer_interrupt__open_and_load"))
+		return;
+
+	err = timer_interrupt__attach(skel);
+	if (!ASSERT_OK(err, "timer_interrupt__attach"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.test_timer_interrupt);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		goto out;
+
+	usleep(50);
+
+	ASSERT_EQ(skel->bss->in_interrupt, 0, "in_interrupt");
+	if (skel->bss->preempt_count)
+		ASSERT_NEQ(skel->bss->in_interrupt_cb, 0, "in_interrupt_cb");
+
+out:
+	timer_interrupt__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/timer_crash.c b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
new file mode 100644
index 000000000000..b841597c8a3a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/timer_crash.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "timer_crash.skel.h"
+
+enum {
+	MODE_ARRAY,
+	MODE_HASH,
+};
+
+static void test_timer_crash_mode(int mode)
+{
+	struct timer_crash *skel;
+
+	skel = timer_crash__open_and_load();
+	if (!skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(skel, "timer_crash__open_and_load"))
+		return;
+	skel->bss->pid = getpid();
+	skel->bss->crash_map = mode;
+	if (!ASSERT_OK(timer_crash__attach(skel), "timer_crash__attach"))
+		goto end;
+	usleep(1);
+end:
+	timer_crash__destroy(skel);
+}
+
+void test_timer_crash(void)
+{
+	if (test__start_subtest("array"))
+		test_timer_crash_mode(MODE_ARRAY);
+	if (test__start_subtest("hash"))
+		test_timer_crash_mode(MODE_HASH);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/timer_lockup.c b/tools/testing/selftests/bpf/prog_tests/timer_lockup.c
new file mode 100644
index 000000000000..eb303fa1e09a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/timer_lockup.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <test_progs.h>
+#include <pthread.h>
+#include <network_helpers.h>
+#include <sys/sysinfo.h>
+
+#include "timer_lockup.skel.h"
+
+static long cpu;
+static int *timer1_err;
+static int *timer2_err;
+static bool skip;
+
+volatile int k = 0;
+
+static void *timer_lockup_thread(void *arg)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in	= &pkt_v4,
+		.data_size_in	= sizeof(pkt_v4),
+		.repeat		= 1000,
+	);
+	int i, prog_fd = *(int *)arg;
+	cpu_set_t cpuset;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(__sync_fetch_and_add(&cpu, 1), &cpuset);
+	ASSERT_OK(pthread_setaffinity_np(pthread_self(), sizeof(cpuset),
+				         &cpuset),
+		  "cpu affinity");
+
+	for (i = 0; !READ_ONCE(*timer1_err) && !READ_ONCE(*timer2_err); i++) {
+		bpf_prog_test_run_opts(prog_fd, &opts);
+		/* Skip the test if we can't reproduce the race in a reasonable
+		 * amount of time.
+		 */
+		if (i > 50) {
+			WRITE_ONCE(skip, true);
+			break;
+		}
+	}
+
+	return NULL;
+}
+
+void test_timer_lockup(void)
+{
+	int timer1_prog, timer2_prog;
+	struct timer_lockup *skel;
+	pthread_t thrds[2];
+	void *ret;
+
+	if (get_nprocs() < 2) {
+		test__skip();
+		return;
+	}
+
+	skel = timer_lockup__open_and_load();
+	if (!skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(skel, "timer_lockup__open_and_load"))
+		return;
+
+	timer1_prog = bpf_program__fd(skel->progs.timer1_prog);
+	timer2_prog = bpf_program__fd(skel->progs.timer2_prog);
+
+	timer1_err = &skel->bss->timer1_err;
+	timer2_err = &skel->bss->timer2_err;
+
+	if (!ASSERT_OK(pthread_create(&thrds[0], NULL, timer_lockup_thread,
+				      &timer1_prog),
+		       "pthread_create thread1"))
+		goto out;
+	if (!ASSERT_OK(pthread_create(&thrds[1], NULL, timer_lockup_thread,
+				      &timer2_prog),
+		       "pthread_create thread2")) {
+		pthread_exit(&thrds[0]);
+		goto out;
+	}
+
+	pthread_join(thrds[1], &ret);
+	pthread_join(thrds[0], &ret);
+
+	if (skip) {
+		test__skip();
+		goto out;
+	}
+
+	if (*timer1_err != -EDEADLK && *timer1_err != 0)
+		ASSERT_FAIL("timer1_err bad value");
+	if (*timer2_err != -EDEADLK && *timer2_err != 0)
+		ASSERT_FAIL("timer2_err bad value");
+out:
+	timer_lockup__destroy(skel);
+	return;
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/timer_mim.c b/tools/testing/selftests/bpf/prog_tests/timer_mim.c
new file mode 100644
index 000000000000..c930c7d7105b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/timer_mim.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <test_progs.h>
+#include "timer_mim.skel.h"
+#include "timer_mim_reject.skel.h"
+
+static int timer_mim(struct timer_mim *timer_skel)
+{
+	__u64 cnt1, cnt2;
+	int err, prog_fd, key1 = 1;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	err = timer_mim__attach(timer_skel);
+	if (!ASSERT_OK(err, "timer_attach"))
+		return err;
+
+	prog_fd = bpf_program__fd(timer_skel->progs.test1);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+	timer_mim__detach(timer_skel);
+
+	/* check that timer_cb[12] are incrementing 'cnt' */
+	cnt1 = READ_ONCE(timer_skel->bss->cnt);
+	for (int i = 0; i < 100; i++) {
+		cnt2 = READ_ONCE(timer_skel->bss->cnt);
+		if (cnt2 != cnt1)
+			break;
+		usleep(200); /* 100 times more than interval */
+	}
+	ASSERT_GT(cnt2, cnt1, "cnt");
+
+	ASSERT_EQ(timer_skel->bss->err, 0, "err");
+	/* check that code paths completed */
+	ASSERT_EQ(timer_skel->bss->ok, 1 | 2, "ok");
+
+	close(bpf_map__fd(timer_skel->maps.inner_htab));
+	err = bpf_map__delete_elem(timer_skel->maps.outer_arr, &key1, sizeof(key1), 0);
+	ASSERT_EQ(err, 0, "delete inner map");
+
+	/* check that timer_cb[12] are no longer running */
+	cnt1 = READ_ONCE(timer_skel->bss->cnt);
+	for (int i = 0; i < 100; i++) {
+		usleep(200); /* 100 times more than interval */
+		cnt2 = READ_ONCE(timer_skel->bss->cnt);
+		if (cnt2 == cnt1)
+			break;
+	}
+	ASSERT_EQ(cnt2, cnt1, "cnt");
+
+	return 0;
+}
+
+void serial_test_timer_mim(void)
+{
+	struct timer_mim_reject *timer_reject_skel = NULL;
+	libbpf_print_fn_t old_print_fn = NULL;
+	struct timer_mim *timer_skel = NULL;
+	int err;
+
+	old_print_fn = libbpf_set_print(NULL);
+	timer_reject_skel = timer_mim_reject__open_and_load();
+	libbpf_set_print(old_print_fn);
+	if (!ASSERT_ERR_PTR(timer_reject_skel, "timer_reject_skel_load"))
+		goto cleanup;
+
+	timer_skel = timer_mim__open_and_load();
+	if (!timer_skel && errno == EOPNOTSUPP) {
+		test__skip();
+		return;
+	}
+	if (!ASSERT_OK_PTR(timer_skel, "timer_skel_load"))
+		goto cleanup;
+
+	err = timer_mim(timer_skel);
+	ASSERT_OK(err, "timer_mim");
+cleanup:
+	timer_mim__destroy(timer_skel);
+	timer_mim_reject__destroy(timer_reject_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/token.c b/tools/testing/selftests/bpf/prog_tests/token.c
new file mode 100644
index 000000000000..b81dde283052
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/token.c
@@ -0,0 +1,1197 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <bpf/btf.h>
+#include "cap_helpers.h"
+#include <fcntl.h>
+#include <sched.h>
+#include <signal.h>
+#include <unistd.h>
+#include <linux/filter.h>
+#include <linux/unistd.h>
+#include <linux/mount.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/un.h>
+#include "priv_map.skel.h"
+#include "priv_prog.skel.h"
+#include "dummy_st_ops_success.skel.h"
+#include "token_lsm.skel.h"
+#include "priv_freplace_prog.skel.h"
+
+static inline int sys_mount(const char *dev_name, const char *dir_name,
+			    const char *type, unsigned long flags,
+			    const void *data)
+{
+	return syscall(__NR_mount, dev_name, dir_name, type, flags, data);
+}
+
+static inline int sys_fsopen(const char *fsname, unsigned flags)
+{
+	return syscall(__NR_fsopen, fsname, flags);
+}
+
+static inline int sys_fspick(int dfd, const char *path, unsigned flags)
+{
+	return syscall(__NR_fspick, dfd, path, flags);
+}
+
+static inline int sys_fsconfig(int fs_fd, unsigned cmd, const char *key, const void *val, int aux)
+{
+	return syscall(__NR_fsconfig, fs_fd, cmd, key, val, aux);
+}
+
+static inline int sys_fsmount(int fs_fd, unsigned flags, unsigned ms_flags)
+{
+	return syscall(__NR_fsmount, fs_fd, flags, ms_flags);
+}
+
+static inline int sys_move_mount(int from_dfd, const char *from_path,
+				 int to_dfd, const char *to_path,
+				 unsigned flags)
+{
+	return syscall(__NR_move_mount, from_dfd, from_path, to_dfd, to_path, flags);
+}
+
+static int drop_priv_caps(__u64 *old_caps)
+{
+	return cap_disable_effective((1ULL << CAP_BPF) |
+				     (1ULL << CAP_PERFMON) |
+				     (1ULL << CAP_NET_ADMIN) |
+				     (1ULL << CAP_SYS_ADMIN), old_caps);
+}
+
+static int restore_priv_caps(__u64 old_caps)
+{
+	return cap_enable_effective(old_caps, NULL);
+}
+
+static int set_delegate_mask(int fs_fd, const char *key, __u64 mask, const char *mask_str)
+{
+	char buf[32];
+	int err;
+
+	if (!mask_str) {
+		if (mask == ~0ULL) {
+			mask_str = "any";
+		} else {
+			snprintf(buf, sizeof(buf), "0x%llx", (unsigned long long)mask);
+			mask_str = buf;
+		}
+	}
+
+	err = sys_fsconfig(fs_fd, FSCONFIG_SET_STRING, key,
+			   mask_str, 0);
+	if (err < 0)
+		err = -errno;
+	return err;
+}
+
+#define zclose(fd) do { if (fd >= 0) close(fd); fd = -1; } while (0)
+
+struct bpffs_opts {
+	__u64 cmds;
+	__u64 maps;
+	__u64 progs;
+	__u64 attachs;
+	const char *cmds_str;
+	const char *maps_str;
+	const char *progs_str;
+	const char *attachs_str;
+};
+
+static int create_bpffs_fd(void)
+{
+	int fs_fd;
+
+	/* create VFS context */
+	fs_fd = sys_fsopen("bpf", 0);
+	ASSERT_GE(fs_fd, 0, "fs_fd");
+
+	return fs_fd;
+}
+
+static int materialize_bpffs_fd(int fs_fd, struct bpffs_opts *opts)
+{
+	int err;
+
+	/* set up token delegation mount options */
+	err = set_delegate_mask(fs_fd, "delegate_cmds", opts->cmds, opts->cmds_str);
+	if (!ASSERT_OK(err, "fs_cfg_cmds"))
+		return err;
+	err = set_delegate_mask(fs_fd, "delegate_maps", opts->maps, opts->maps_str);
+	if (!ASSERT_OK(err, "fs_cfg_maps"))
+		return err;
+	err = set_delegate_mask(fs_fd, "delegate_progs", opts->progs, opts->progs_str);
+	if (!ASSERT_OK(err, "fs_cfg_progs"))
+		return err;
+	err = set_delegate_mask(fs_fd, "delegate_attachs", opts->attachs, opts->attachs_str);
+	if (!ASSERT_OK(err, "fs_cfg_attachs"))
+		return err;
+
+	/* instantiate FS object */
+	err = sys_fsconfig(fs_fd, FSCONFIG_CMD_CREATE, NULL, NULL, 0);
+	if (err < 0)
+		return -errno;
+
+	return 0;
+}
+
+/* send FD over Unix domain (AF_UNIX) socket */
+static int sendfd(int sockfd, int fd)
+{
+	struct msghdr msg = {};
+	struct cmsghdr *cmsg;
+	int fds[1] = { fd }, err;
+	char iobuf[1];
+	struct iovec io = {
+		.iov_base = iobuf,
+		.iov_len = sizeof(iobuf),
+	};
+	union {
+		char buf[CMSG_SPACE(sizeof(fds))];
+		struct cmsghdr align;
+	} u;
+
+	msg.msg_iov = &io;
+	msg.msg_iovlen = 1;
+	msg.msg_control = u.buf;
+	msg.msg_controllen = sizeof(u.buf);
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_type = SCM_RIGHTS;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(fds));
+	memcpy(CMSG_DATA(cmsg), fds, sizeof(fds));
+
+	err = sendmsg(sockfd, &msg, 0);
+	if (err < 0)
+		err = -errno;
+	if (!ASSERT_EQ(err, 1, "sendmsg"))
+		return -EINVAL;
+
+	return 0;
+}
+
+/* receive FD over Unix domain (AF_UNIX) socket */
+static int recvfd(int sockfd, int *fd)
+{
+	struct msghdr msg = {};
+	struct cmsghdr *cmsg;
+	int fds[1], err;
+	char iobuf[1];
+	struct iovec io = {
+		.iov_base = iobuf,
+		.iov_len = sizeof(iobuf),
+	};
+	union {
+		char buf[CMSG_SPACE(sizeof(fds))];
+		struct cmsghdr align;
+	} u;
+
+	msg.msg_iov = &io;
+	msg.msg_iovlen = 1;
+	msg.msg_control = u.buf;
+	msg.msg_controllen = sizeof(u.buf);
+
+	err = recvmsg(sockfd, &msg, 0);
+	if (err < 0)
+		err = -errno;
+	if (!ASSERT_EQ(err, 1, "recvmsg"))
+		return -EINVAL;
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	if (!ASSERT_OK_PTR(cmsg, "cmsg_null") ||
+	    !ASSERT_EQ(cmsg->cmsg_len, CMSG_LEN(sizeof(fds)), "cmsg_len") ||
+	    !ASSERT_EQ(cmsg->cmsg_level, SOL_SOCKET, "cmsg_level") ||
+	    !ASSERT_EQ(cmsg->cmsg_type, SCM_RIGHTS, "cmsg_type"))
+		return -EINVAL;
+
+	memcpy(fds, CMSG_DATA(cmsg), sizeof(fds));
+	*fd = fds[0];
+
+	return 0;
+}
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static int write_file(const char *path, const void *buf, size_t count)
+{
+	int fd;
+	ssize_t ret;
+
+	fd = open(path, O_WRONLY | O_CLOEXEC | O_NOCTTY | O_NOFOLLOW);
+	if (fd < 0)
+		return -1;
+
+	ret = write_nointr(fd, buf, count);
+	close(fd);
+	if (ret < 0 || (size_t)ret != count)
+		return -1;
+
+	return 0;
+}
+
+static int create_and_enter_userns(void)
+{
+	uid_t uid;
+	gid_t gid;
+	char map[100];
+
+	uid = getuid();
+	gid = getgid();
+
+	if (unshare(CLONE_NEWUSER))
+		return -1;
+
+	if (write_file("/proc/self/setgroups", "deny", sizeof("deny") - 1) &&
+	    errno != ENOENT)
+		return -1;
+
+	snprintf(map, sizeof(map), "0 %d 1", uid);
+	if (write_file("/proc/self/uid_map", map, strlen(map)))
+		return -1;
+
+
+	snprintf(map, sizeof(map), "0 %d 1", gid);
+	if (write_file("/proc/self/gid_map", map, strlen(map)))
+		return -1;
+
+	if (setgid(0))
+		return -1;
+
+	if (setuid(0))
+		return -1;
+
+	return 0;
+}
+
+typedef int (*child_callback_fn)(int bpffs_fd, struct token_lsm *lsm_skel);
+
+static void child(int sock_fd, struct bpffs_opts *opts, child_callback_fn callback)
+{
+	int mnt_fd = -1, fs_fd = -1, err = 0, bpffs_fd = -1, token_fd = -1;
+	struct token_lsm *lsm_skel = NULL;
+	char one;
+
+	/* load and attach LSM "policy" before we go into unpriv userns */
+	lsm_skel = token_lsm__open_and_load();
+	if (!ASSERT_OK_PTR(lsm_skel, "lsm_skel_load")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	lsm_skel->bss->my_pid = getpid();
+	err = token_lsm__attach(lsm_skel);
+	if (!ASSERT_OK(err, "lsm_skel_attach"))
+		goto cleanup;
+
+	/* setup userns with root mappings */
+	err = create_and_enter_userns();
+	if (!ASSERT_OK(err, "create_and_enter_userns"))
+		goto cleanup;
+
+	/* setup mountns to allow creating BPF FS (fsopen("bpf")) from unpriv process */
+	err = unshare(CLONE_NEWNS);
+	if (!ASSERT_OK(err, "create_mountns"))
+		goto cleanup;
+
+	err = sys_mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+	if (!ASSERT_OK(err, "remount_root"))
+		goto cleanup;
+
+	fs_fd = create_bpffs_fd();
+	if (!ASSERT_GE(fs_fd, 0, "create_bpffs_fd")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* ensure unprivileged child cannot set delegation options */
+	err = set_delegate_mask(fs_fd, "delegate_cmds", 0x1, NULL);
+	ASSERT_EQ(err, -EPERM, "delegate_cmd_eperm");
+	err = set_delegate_mask(fs_fd, "delegate_maps", 0x1, NULL);
+	ASSERT_EQ(err, -EPERM, "delegate_maps_eperm");
+	err = set_delegate_mask(fs_fd, "delegate_progs", 0x1, NULL);
+	ASSERT_EQ(err, -EPERM, "delegate_progs_eperm");
+	err = set_delegate_mask(fs_fd, "delegate_attachs", 0x1, NULL);
+	ASSERT_EQ(err, -EPERM, "delegate_attachs_eperm");
+
+	/* pass BPF FS context object to parent */
+	err = sendfd(sock_fd, fs_fd);
+	if (!ASSERT_OK(err, "send_fs_fd"))
+		goto cleanup;
+
+	/* wait that the parent reads the fd, does the fsconfig() calls
+	 * and send us a signal that it is done
+	 */
+	err = read(sock_fd, &one, sizeof(one));
+	if (!ASSERT_GE(err, 0, "read_one"))
+		goto cleanup;
+
+	/* avoid mucking around with mount namespaces and mounting at
+	 * well-known path, just create O_PATH fd for detached mount
+	 */
+	mnt_fd = sys_fsmount(fs_fd, 0, 0);
+	if (!ASSERT_OK_FD(mnt_fd, "mnt_fd"))
+		goto cleanup;
+
+	/* try to fspick() BPF FS and try to add some delegation options */
+	fs_fd = sys_fspick(mnt_fd, "", FSPICK_EMPTY_PATH);
+	if (!ASSERT_GE(fs_fd, 0, "bpffs_fspick")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* ensure unprivileged child cannot reconfigure to set delegation options */
+	err = set_delegate_mask(fs_fd, "delegate_cmds", 0, "any");
+	if (!ASSERT_EQ(err, -EPERM, "delegate_cmd_eperm_reconfig")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	err = set_delegate_mask(fs_fd, "delegate_maps", 0, "any");
+	if (!ASSERT_EQ(err, -EPERM, "delegate_maps_eperm_reconfig")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	err = set_delegate_mask(fs_fd, "delegate_progs", 0, "any");
+	if (!ASSERT_EQ(err, -EPERM, "delegate_progs_eperm_reconfig")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	err = set_delegate_mask(fs_fd, "delegate_attachs", 0, "any");
+	if (!ASSERT_EQ(err, -EPERM, "delegate_attachs_eperm_reconfig")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	zclose(fs_fd);
+
+	bpffs_fd = openat(mnt_fd, ".", 0, O_RDWR);
+	if (!ASSERT_GE(bpffs_fd, 0, "bpffs_open")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* create BPF token FD and pass it to parent for some extra checks */
+	token_fd = bpf_token_create(bpffs_fd, NULL);
+	if (!ASSERT_GT(token_fd, 0, "child_token_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	err = sendfd(sock_fd, token_fd);
+	if (!ASSERT_OK(err, "send_token_fd"))
+		goto cleanup;
+	zclose(token_fd);
+
+	/* do custom test logic with customly set up BPF FS instance */
+	err = callback(bpffs_fd, lsm_skel);
+	if (!ASSERT_OK(err, "test_callback"))
+		goto cleanup;
+
+	err = 0;
+cleanup:
+	zclose(sock_fd);
+	zclose(mnt_fd);
+	zclose(fs_fd);
+	zclose(bpffs_fd);
+	zclose(token_fd);
+
+	lsm_skel->bss->my_pid = 0;
+	token_lsm__destroy(lsm_skel);
+
+	exit(-err);
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static void parent(int child_pid, struct bpffs_opts *bpffs_opts, int sock_fd)
+{
+	int fs_fd = -1, token_fd = -1, err;
+	char one = 1;
+
+	err = recvfd(sock_fd, &fs_fd);
+	if (!ASSERT_OK(err, "recv_bpffs_fd"))
+		goto cleanup;
+
+	err = materialize_bpffs_fd(fs_fd, bpffs_opts);
+	if (!ASSERT_GE(err, 0, "materialize_bpffs_fd")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* notify the child that we did the fsconfig() calls and it can proceed. */
+	err = write(sock_fd, &one, sizeof(one));
+	if (!ASSERT_EQ(err, sizeof(one), "send_one"))
+		goto cleanup;
+	zclose(fs_fd);
+
+	/* receive BPF token FD back from child for some extra tests */
+	err = recvfd(sock_fd, &token_fd);
+	if (!ASSERT_OK(err, "recv_token_fd"))
+		goto cleanup;
+
+	err = wait_for_pid(child_pid);
+	ASSERT_OK(err, "waitpid_child");
+
+cleanup:
+	zclose(sock_fd);
+	zclose(fs_fd);
+	zclose(token_fd);
+
+	if (child_pid > 0)
+		(void)kill(child_pid, SIGKILL);
+}
+
+static void subtest_userns(struct bpffs_opts *bpffs_opts,
+			   child_callback_fn child_cb)
+{
+	int sock_fds[2] = { -1, -1 };
+	int child_pid = 0, err;
+
+	err = socketpair(AF_UNIX, SOCK_STREAM, 0, sock_fds);
+	if (!ASSERT_OK(err, "socketpair"))
+		goto cleanup;
+
+	child_pid = fork();
+	if (!ASSERT_GE(child_pid, 0, "fork"))
+		goto cleanup;
+
+	if (child_pid == 0) {
+		zclose(sock_fds[0]);
+		return child(sock_fds[1], bpffs_opts, child_cb);
+
+	} else {
+		zclose(sock_fds[1]);
+		return parent(child_pid, bpffs_opts, sock_fds[0]);
+	}
+
+cleanup:
+	zclose(sock_fds[0]);
+	zclose(sock_fds[1]);
+	if (child_pid > 0)
+		(void)kill(child_pid, SIGKILL);
+}
+
+static int userns_map_create(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, map_opts);
+	int err, token_fd = -1, map_fd = -1;
+	__u64 old_caps = 0;
+
+	/* create BPF token from BPF FS mount */
+	token_fd = bpf_token_create(mnt_fd, NULL);
+	if (!ASSERT_GT(token_fd, 0, "token_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* while inside non-init userns, we need both a BPF token *and*
+	 * CAP_BPF inside current userns to create privileged map; let's test
+	 * that neither BPF token alone nor namespaced CAP_BPF is sufficient
+	 */
+	err = drop_priv_caps(&old_caps);
+	if (!ASSERT_OK(err, "drop_caps"))
+		goto cleanup;
+
+	/* no token, no CAP_BPF -> fail */
+	map_opts.map_flags = 0;
+	map_opts.token_fd = 0;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_STACK, "wo_token_wo_bpf", 0, 8, 1, &map_opts);
+	if (!ASSERT_LT(map_fd, 0, "stack_map_wo_token_wo_cap_bpf_should_fail")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* token without CAP_BPF -> fail */
+	map_opts.map_flags = BPF_F_TOKEN_FD;
+	map_opts.token_fd = token_fd;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_STACK, "w_token_wo_bpf", 0, 8, 1, &map_opts);
+	if (!ASSERT_LT(map_fd, 0, "stack_map_w_token_wo_cap_bpf_should_fail")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* get back effective local CAP_BPF (and CAP_SYS_ADMIN) */
+	err = restore_priv_caps(old_caps);
+	if (!ASSERT_OK(err, "restore_caps"))
+		goto cleanup;
+
+	/* CAP_BPF without token -> fail */
+	map_opts.map_flags = 0;
+	map_opts.token_fd = 0;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_STACK, "wo_token_w_bpf", 0, 8, 1, &map_opts);
+	if (!ASSERT_LT(map_fd, 0, "stack_map_wo_token_w_cap_bpf_should_fail")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* finally, namespaced CAP_BPF + token -> success */
+	map_opts.map_flags = BPF_F_TOKEN_FD;
+	map_opts.token_fd = token_fd;
+	map_fd = bpf_map_create(BPF_MAP_TYPE_STACK, "w_token_w_bpf", 0, 8, 1, &map_opts);
+	if (!ASSERT_GT(map_fd, 0, "stack_map_w_token_w_cap_bpf")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+cleanup:
+	zclose(token_fd);
+	zclose(map_fd);
+	return err;
+}
+
+static int userns_btf_load(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_btf_load_opts, btf_opts);
+	int err, token_fd = -1, btf_fd = -1;
+	const void *raw_btf_data;
+	struct btf *btf = NULL;
+	__u32 raw_btf_size;
+	__u64 old_caps = 0;
+
+	/* create BPF token from BPF FS mount */
+	token_fd = bpf_token_create(mnt_fd, NULL);
+	if (!ASSERT_GT(token_fd, 0, "token_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* while inside non-init userns, we need both a BPF token *and*
+	 * CAP_BPF inside current userns to create privileged map; let's test
+	 * that neither BPF token alone nor namespaced CAP_BPF is sufficient
+	 */
+	err = drop_priv_caps(&old_caps);
+	if (!ASSERT_OK(err, "drop_caps"))
+		goto cleanup;
+
+	/* setup a trivial BTF data to load to the kernel */
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "empty_btf"))
+		goto cleanup;
+
+	ASSERT_GT(btf__add_int(btf, "int", 4, 0), 0, "int_type");
+
+	raw_btf_data = btf__raw_data(btf, &raw_btf_size);
+	if (!ASSERT_OK_PTR(raw_btf_data, "raw_btf_data"))
+		goto cleanup;
+
+	/* no token + no CAP_BPF -> failure */
+	btf_opts.btf_flags = 0;
+	btf_opts.token_fd = 0;
+	btf_fd = bpf_btf_load(raw_btf_data, raw_btf_size, &btf_opts);
+	if (!ASSERT_LT(btf_fd, 0, "no_token_no_cap_should_fail"))
+		goto cleanup;
+
+	/* token + no CAP_BPF -> failure */
+	btf_opts.btf_flags = BPF_F_TOKEN_FD;
+	btf_opts.token_fd = token_fd;
+	btf_fd = bpf_btf_load(raw_btf_data, raw_btf_size, &btf_opts);
+	if (!ASSERT_LT(btf_fd, 0, "token_no_cap_should_fail"))
+		goto cleanup;
+
+	/* get back effective local CAP_BPF (and CAP_SYS_ADMIN) */
+	err = restore_priv_caps(old_caps);
+	if (!ASSERT_OK(err, "restore_caps"))
+		goto cleanup;
+
+	/* token + CAP_BPF -> success */
+	btf_opts.btf_flags = BPF_F_TOKEN_FD;
+	btf_opts.token_fd = token_fd;
+	btf_fd = bpf_btf_load(raw_btf_data, raw_btf_size, &btf_opts);
+	if (!ASSERT_GT(btf_fd, 0, "token_and_cap_success"))
+		goto cleanup;
+
+	err = 0;
+cleanup:
+	btf__free(btf);
+	zclose(btf_fd);
+	zclose(token_fd);
+	return err;
+}
+
+static int userns_prog_load(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, prog_opts);
+	int err, token_fd = -1, prog_fd = -1;
+	struct bpf_insn insns[] = {
+		/* bpf_jiffies64() requires CAP_BPF */
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+		/* bpf_get_current_task() requires CAP_PERFMON */
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_current_task),
+		/* r0 = 0; exit; */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	size_t insn_cnt = ARRAY_SIZE(insns);
+	__u64 old_caps = 0;
+
+	/* create BPF token from BPF FS mount */
+	token_fd = bpf_token_create(mnt_fd, NULL);
+	if (!ASSERT_GT(token_fd, 0, "token_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* validate we can successfully load BPF program with token; this
+	 * being XDP program (CAP_NET_ADMIN) using bpf_jiffies64() (CAP_BPF)
+	 * and bpf_get_current_task() (CAP_PERFMON) helpers validates we have
+	 * BPF token wired properly in a bunch of places in the kernel
+	 */
+	prog_opts.prog_flags = BPF_F_TOKEN_FD;
+	prog_opts.token_fd = token_fd;
+	prog_opts.expected_attach_type = BPF_XDP;
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, "token_prog", "GPL",
+				insns, insn_cnt, &prog_opts);
+	if (!ASSERT_GT(prog_fd, 0, "prog_fd")) {
+		err = -EPERM;
+		goto cleanup;
+	}
+
+	/* no token + caps -> failure */
+	prog_opts.prog_flags = 0;
+	prog_opts.token_fd = 0;
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, "token_prog", "GPL",
+				insns, insn_cnt, &prog_opts);
+	if (!ASSERT_EQ(prog_fd, -EPERM, "prog_fd_eperm")) {
+		err = -EPERM;
+		goto cleanup;
+	}
+
+	err = drop_priv_caps(&old_caps);
+	if (!ASSERT_OK(err, "drop_caps"))
+		goto cleanup;
+
+	/* no caps + token -> failure */
+	prog_opts.prog_flags = BPF_F_TOKEN_FD;
+	prog_opts.token_fd = token_fd;
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, "token_prog", "GPL",
+				insns, insn_cnt, &prog_opts);
+	if (!ASSERT_EQ(prog_fd, -EPERM, "prog_fd_eperm")) {
+		err = -EPERM;
+		goto cleanup;
+	}
+
+	/* no caps + no token -> definitely a failure */
+	prog_opts.prog_flags = 0;
+	prog_opts.token_fd = 0;
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, "token_prog", "GPL",
+				insns, insn_cnt, &prog_opts);
+	if (!ASSERT_EQ(prog_fd, -EPERM, "prog_fd_eperm")) {
+		err = -EPERM;
+		goto cleanup;
+	}
+
+	err = 0;
+cleanup:
+	zclose(prog_fd);
+	zclose(token_fd);
+	return err;
+}
+
+static int userns_obj_priv_map(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	char buf[256];
+	struct priv_map *skel;
+	int err;
+
+	skel = priv_map__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_tokenless_load")) {
+		priv_map__destroy(skel);
+		return -EINVAL;
+	}
+
+	/* use bpf_token_path to provide BPF FS path */
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%d", mnt_fd);
+	opts.bpf_token_path = buf;
+	skel = priv_map__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_token_path_open"))
+		return -EINVAL;
+
+	err = priv_map__load(skel);
+	priv_map__destroy(skel);
+	if (!ASSERT_OK(err, "obj_token_path_load"))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int userns_obj_priv_prog(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	char buf[256];
+	struct priv_prog *skel;
+	int err;
+
+	skel = priv_prog__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_tokenless_load")) {
+		priv_prog__destroy(skel);
+		return -EINVAL;
+	}
+
+	/* use bpf_token_path to provide BPF FS path */
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%d", mnt_fd);
+	opts.bpf_token_path = buf;
+	skel = priv_prog__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_token_path_open"))
+		return -EINVAL;
+	err = priv_prog__load(skel);
+	priv_prog__destroy(skel);
+	if (!ASSERT_OK(err, "obj_token_path_load"))
+		return -EINVAL;
+
+	/* provide BPF token, but reject bpf_token_capable() with LSM */
+	lsm_skel->bss->reject_capable = true;
+	lsm_skel->bss->reject_cmd = false;
+	skel = priv_prog__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_token_lsm_reject_cap_open"))
+		return -EINVAL;
+	err = priv_prog__load(skel);
+	priv_prog__destroy(skel);
+	if (!ASSERT_ERR(err, "obj_token_lsm_reject_cap_load"))
+		return -EINVAL;
+
+	/* provide BPF token, but reject bpf_token_cmd() with LSM */
+	lsm_skel->bss->reject_capable = false;
+	lsm_skel->bss->reject_cmd = true;
+	skel = priv_prog__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_token_lsm_reject_cmd_open"))
+		return -EINVAL;
+	err = priv_prog__load(skel);
+	priv_prog__destroy(skel);
+	if (!ASSERT_ERR(err, "obj_token_lsm_reject_cmd_load"))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int userns_obj_priv_freplace_setup(int mnt_fd, struct priv_freplace_prog **fr_skel,
+					  struct priv_prog **skel, int *tgt_fd)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	int err;
+	char buf[256];
+
+	/* use bpf_token_path to provide BPF FS path */
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%d", mnt_fd);
+	opts.bpf_token_path = buf;
+	*skel = priv_prog__open_opts(&opts);
+	if (!ASSERT_OK_PTR(*skel, "priv_prog__open_opts"))
+		return -EINVAL;
+	err = priv_prog__load(*skel);
+	if (!ASSERT_OK(err, "priv_prog__load"))
+		return -EINVAL;
+
+	*fr_skel = priv_freplace_prog__open_opts(&opts);
+	if (!ASSERT_OK_PTR(*skel, "priv_freplace_prog__open_opts"))
+		return -EINVAL;
+
+	*tgt_fd = bpf_program__fd((*skel)->progs.xdp_prog1);
+	return 0;
+}
+
+/* Verify that freplace works from user namespace, because bpf token is loaded
+ * in bpf_object__prepare
+ */
+static int userns_obj_priv_freplace_prog(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	struct priv_freplace_prog *fr_skel = NULL;
+	struct priv_prog *skel = NULL;
+	int err, tgt_fd;
+
+	err = userns_obj_priv_freplace_setup(mnt_fd, &fr_skel, &skel, &tgt_fd);
+	if (!ASSERT_OK(err, "setup"))
+		goto out;
+
+	err = bpf_object__prepare(fr_skel->obj);
+	if (!ASSERT_OK(err, "freplace__prepare"))
+		goto out;
+
+	err = bpf_program__set_attach_target(fr_skel->progs.new_xdp_prog2, tgt_fd, "xdp_prog1");
+	if (!ASSERT_OK(err, "set_attach_target"))
+		goto out;
+
+	err = priv_freplace_prog__load(fr_skel);
+	ASSERT_OK(err, "priv_freplace_prog__load");
+
+out:
+	priv_freplace_prog__destroy(fr_skel);
+	priv_prog__destroy(skel);
+	return err;
+}
+
+/* Verify that replace fails to set attach target from user namespace without bpf token */
+static int userns_obj_priv_freplace_prog_fail(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	struct priv_freplace_prog *fr_skel = NULL;
+	struct priv_prog *skel = NULL;
+	int err, tgt_fd;
+
+	err = userns_obj_priv_freplace_setup(mnt_fd, &fr_skel, &skel, &tgt_fd);
+	if (!ASSERT_OK(err, "setup"))
+		goto out;
+
+	err = bpf_program__set_attach_target(fr_skel->progs.new_xdp_prog2, tgt_fd, "xdp_prog1");
+	if (ASSERT_ERR(err, "attach fails"))
+		err = 0;
+	else
+		err = -EINVAL;
+
+out:
+	priv_freplace_prog__destroy(fr_skel);
+	priv_prog__destroy(skel);
+	return err;
+}
+
+/* this test is called with BPF FS that doesn't delegate BPF_BTF_LOAD command,
+ * which should cause struct_ops application to fail, as BTF won't be uploaded
+ * into the kernel, even if STRUCT_OPS programs themselves are allowed
+ */
+static int validate_struct_ops_load(int mnt_fd, bool expect_success)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	char buf[256];
+	struct dummy_st_ops_success *skel;
+	int err;
+
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%d", mnt_fd);
+	opts.bpf_token_path = buf;
+	skel = dummy_st_ops_success__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_token_path_open"))
+		return -EINVAL;
+
+	err = dummy_st_ops_success__load(skel);
+	dummy_st_ops_success__destroy(skel);
+	if (expect_success) {
+		if (!ASSERT_OK(err, "obj_token_path_load"))
+			return -EINVAL;
+	} else /* expect failure */ {
+		if (!ASSERT_ERR(err, "obj_token_path_load"))
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int userns_obj_priv_btf_fail(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	return validate_struct_ops_load(mnt_fd, false /* should fail */);
+}
+
+static int userns_obj_priv_btf_success(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	return validate_struct_ops_load(mnt_fd, true /* should succeed */);
+}
+
+static const char *token_bpffs_custom_dir()
+{
+	return getenv("BPF_SELFTESTS_BPF_TOKEN_DIR") ?: "/tmp/bpf-token-fs";
+}
+
+#define TOKEN_ENVVAR "LIBBPF_BPF_TOKEN_PATH"
+
+static int userns_obj_priv_implicit_token(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	struct dummy_st_ops_success *skel;
+	int err;
+
+	/* before we mount BPF FS with token delegation, struct_ops skeleton
+	 * should fail to load
+	 */
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_tokenless_load")) {
+		dummy_st_ops_success__destroy(skel);
+		return -EINVAL;
+	}
+
+	/* mount custom BPF FS over /sys/fs/bpf so that libbpf can create BPF
+	 * token automatically and implicitly
+	 */
+	err = sys_move_mount(mnt_fd, "", AT_FDCWD, "/sys/fs/bpf", MOVE_MOUNT_F_EMPTY_PATH);
+	if (!ASSERT_OK(err, "move_mount_bpffs"))
+		return -EINVAL;
+
+	/* disable implicit BPF token creation by setting
+	 * LIBBPF_BPF_TOKEN_PATH envvar to empty value, load should fail
+	 */
+	err = setenv(TOKEN_ENVVAR, "", 1 /*overwrite*/);
+	if (!ASSERT_OK(err, "setenv_token_path"))
+		return -EINVAL;
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_token_envvar_disabled_load")) {
+		unsetenv(TOKEN_ENVVAR);
+		dummy_st_ops_success__destroy(skel);
+		return -EINVAL;
+	}
+	unsetenv(TOKEN_ENVVAR);
+
+	/* now the same struct_ops skeleton should succeed thanks to libbpf
+	 * creating BPF token from /sys/fs/bpf mount point
+	 */
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "obj_implicit_token_load"))
+		return -EINVAL;
+
+	dummy_st_ops_success__destroy(skel);
+
+	/* now disable implicit token through empty bpf_token_path, should fail */
+	opts.bpf_token_path = "";
+	skel = dummy_st_ops_success__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_empty_token_path_open"))
+		return -EINVAL;
+
+	err = dummy_st_ops_success__load(skel);
+	dummy_st_ops_success__destroy(skel);
+	if (!ASSERT_ERR(err, "obj_empty_token_path_load"))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int userns_obj_priv_implicit_token_envvar(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	const char *custom_dir = token_bpffs_custom_dir();
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	struct dummy_st_ops_success *skel;
+	int err;
+
+	/* before we mount BPF FS with token delegation, struct_ops skeleton
+	 * should fail to load
+	 */
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_tokenless_load")) {
+		dummy_st_ops_success__destroy(skel);
+		return -EINVAL;
+	}
+
+	/* mount custom BPF FS over custom location, so libbpf can't create
+	 * BPF token implicitly, unless pointed to it through
+	 * LIBBPF_BPF_TOKEN_PATH envvar
+	 */
+	rmdir(custom_dir);
+	if (!ASSERT_OK(mkdir(custom_dir, 0777), "mkdir_bpffs_custom"))
+		goto err_out;
+	err = sys_move_mount(mnt_fd, "", AT_FDCWD, custom_dir, MOVE_MOUNT_F_EMPTY_PATH);
+	if (!ASSERT_OK(err, "move_mount_bpffs"))
+		goto err_out;
+
+	/* even though we have BPF FS with delegation, it's not at default
+	 * /sys/fs/bpf location, so we still fail to load until envvar is set up
+	 */
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_ERR_PTR(skel, "obj_tokenless_load2")) {
+		dummy_st_ops_success__destroy(skel);
+		goto err_out;
+	}
+
+	err = setenv(TOKEN_ENVVAR, custom_dir, 1 /*overwrite*/);
+	if (!ASSERT_OK(err, "setenv_token_path"))
+		goto err_out;
+
+	/* now the same struct_ops skeleton should succeed thanks to libbpf
+	 * creating BPF token from custom mount point
+	 */
+	skel = dummy_st_ops_success__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "obj_implicit_token_load"))
+		goto err_out;
+
+	dummy_st_ops_success__destroy(skel);
+
+	/* now disable implicit token through empty bpf_token_path, envvar
+	 * will be ignored, should fail
+	 */
+	opts.bpf_token_path = "";
+	skel = dummy_st_ops_success__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "obj_empty_token_path_open"))
+		goto err_out;
+
+	err = dummy_st_ops_success__load(skel);
+	dummy_st_ops_success__destroy(skel);
+	if (!ASSERT_ERR(err, "obj_empty_token_path_load"))
+		goto err_out;
+
+	rmdir(custom_dir);
+	unsetenv(TOKEN_ENVVAR);
+	return 0;
+err_out:
+	rmdir(custom_dir);
+	unsetenv(TOKEN_ENVVAR);
+	return -EINVAL;
+}
+
+#define bit(n) (1ULL << (n))
+
+static int userns_bpf_token_info(int mnt_fd, struct token_lsm *lsm_skel)
+{
+	int err, token_fd = -1;
+	struct bpf_token_info info;
+	u32 len = sizeof(struct bpf_token_info);
+
+	/* create BPF token from BPF FS mount */
+	token_fd = bpf_token_create(mnt_fd, NULL);
+	if (!ASSERT_GT(token_fd, 0, "token_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	memset(&info, 0, len);
+	err = bpf_obj_get_info_by_fd(token_fd, &info, &len);
+	if (!ASSERT_ERR(err, "bpf_obj_get_token_info"))
+		goto cleanup;
+	if (!ASSERT_EQ(info.allowed_cmds, bit(BPF_MAP_CREATE), "token_info_cmds_map_create")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+	if (!ASSERT_EQ(info.allowed_progs, bit(BPF_PROG_TYPE_XDP), "token_info_progs_xdp")) {
+		err = -EINVAL;
+		goto cleanup;
+	}
+
+	/* The BPF_PROG_TYPE_EXT is not set in token */
+	if (ASSERT_EQ(info.allowed_progs, bit(BPF_PROG_TYPE_EXT), "token_info_progs_ext"))
+		err = -EINVAL;
+
+cleanup:
+	zclose(token_fd);
+	return err;
+}
+
+void test_token(void)
+{
+	if (test__start_subtest("map_token")) {
+		struct bpffs_opts opts = {
+			.cmds_str = "map_create",
+			.maps_str = "stack",
+		};
+
+		subtest_userns(&opts, userns_map_create);
+	}
+	if (test__start_subtest("btf_token")) {
+		struct bpffs_opts opts = {
+			.cmds = 1ULL << BPF_BTF_LOAD,
+		};
+
+		subtest_userns(&opts, userns_btf_load);
+	}
+	if (test__start_subtest("prog_token")) {
+		struct bpffs_opts opts = {
+			.cmds_str = "PROG_LOAD",
+			.progs_str = "XDP",
+			.attachs_str = "xdp",
+		};
+
+		subtest_userns(&opts, userns_prog_load);
+	}
+	if (test__start_subtest("obj_priv_map")) {
+		struct bpffs_opts opts = {
+			.cmds = bit(BPF_MAP_CREATE),
+			.maps = bit(BPF_MAP_TYPE_QUEUE),
+		};
+
+		subtest_userns(&opts, userns_obj_priv_map);
+	}
+	if (test__start_subtest("obj_priv_prog")) {
+		struct bpffs_opts opts = {
+			.cmds = bit(BPF_PROG_LOAD),
+			.progs = bit(BPF_PROG_TYPE_XDP),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_obj_priv_prog);
+	}
+	if (test__start_subtest("obj_priv_freplace_prog")) {
+		struct bpffs_opts opts = {
+			.cmds = bit(BPF_BTF_LOAD) | bit(BPF_PROG_LOAD) | bit(BPF_BTF_GET_FD_BY_ID),
+			.progs = bit(BPF_PROG_TYPE_EXT) | bit(BPF_PROG_TYPE_XDP),
+			.attachs = ~0ULL,
+		};
+		subtest_userns(&opts, userns_obj_priv_freplace_prog);
+	}
+	if (test__start_subtest("obj_priv_freplace_prog_fail")) {
+		struct bpffs_opts opts = {
+			.cmds = bit(BPF_BTF_LOAD) | bit(BPF_PROG_LOAD) | bit(BPF_BTF_GET_FD_BY_ID),
+			.progs = bit(BPF_PROG_TYPE_EXT) | bit(BPF_PROG_TYPE_XDP),
+			.attachs = ~0ULL,
+		};
+		subtest_userns(&opts, userns_obj_priv_freplace_prog_fail);
+	}
+	if (test__start_subtest("obj_priv_btf_fail")) {
+		struct bpffs_opts opts = {
+			/* disallow BTF loading */
+			.cmds = bit(BPF_MAP_CREATE) | bit(BPF_PROG_LOAD),
+			.maps = bit(BPF_MAP_TYPE_STRUCT_OPS),
+			.progs = bit(BPF_PROG_TYPE_STRUCT_OPS),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_obj_priv_btf_fail);
+	}
+	if (test__start_subtest("obj_priv_btf_success")) {
+		struct bpffs_opts opts = {
+			/* allow BTF loading */
+			.cmds = bit(BPF_BTF_LOAD) | bit(BPF_MAP_CREATE) | bit(BPF_PROG_LOAD),
+			.maps = bit(BPF_MAP_TYPE_STRUCT_OPS),
+			.progs = bit(BPF_PROG_TYPE_STRUCT_OPS),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_obj_priv_btf_success);
+	}
+	if (test__start_subtest("obj_priv_implicit_token")) {
+		struct bpffs_opts opts = {
+			/* allow BTF loading */
+			.cmds = bit(BPF_BTF_LOAD) | bit(BPF_MAP_CREATE) | bit(BPF_PROG_LOAD),
+			.maps = bit(BPF_MAP_TYPE_STRUCT_OPS),
+			.progs = bit(BPF_PROG_TYPE_STRUCT_OPS),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_obj_priv_implicit_token);
+	}
+	if (test__start_subtest("obj_priv_implicit_token_envvar")) {
+		struct bpffs_opts opts = {
+			/* allow BTF loading */
+			.cmds = bit(BPF_BTF_LOAD) | bit(BPF_MAP_CREATE) | bit(BPF_PROG_LOAD),
+			.maps = bit(BPF_MAP_TYPE_STRUCT_OPS),
+			.progs = bit(BPF_PROG_TYPE_STRUCT_OPS),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_obj_priv_implicit_token_envvar);
+	}
+	if (test__start_subtest("bpf_token_info")) {
+		struct bpffs_opts opts = {
+			.cmds = bit(BPF_MAP_CREATE),
+			.progs = bit(BPF_PROG_TYPE_XDP),
+			.attachs = ~0ULL,
+		};
+
+		subtest_userns(&opts, userns_bpf_token_info);
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c
new file mode 100644
index 000000000000..655d69f0ff0b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tp_attach_query.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void serial_test_tp_attach_query(void)
+{
+	const int num_progs = 3;
+	int i, j, bytes, efd, err, prog_fd[num_progs], pmu_fd[num_progs];
+	__u32 duration = 0, info_len, saved_prog_ids[num_progs];
+	const char *file = "./test_tracepoint.bpf.o";
+	struct perf_event_query_bpf *query;
+	struct perf_event_attr attr = {};
+	struct bpf_object *obj[num_progs];
+	struct bpf_prog_info prog_info;
+	char buf[256];
+
+	for (i = 0; i < num_progs; i++)
+		obj[i] = NULL;
+
+	if (access("/sys/kernel/tracing/trace", F_OK) == 0) {
+		snprintf(buf, sizeof(buf),
+			 "/sys/kernel/tracing/events/sched/sched_switch/id");
+	} else {
+		snprintf(buf, sizeof(buf),
+			 "/sys/kernel/debug/tracing/events/sched/sched_switch/id");
+	}
+	efd = open(buf, O_RDONLY, 0);
+	if (CHECK(efd < 0, "open", "err %d errno %d\n", efd, errno))
+		return;
+	bytes = read(efd, buf, sizeof(buf));
+	close(efd);
+	if (CHECK(bytes <= 0 || bytes >= sizeof(buf),
+		  "read", "bytes %d errno %d\n", bytes, errno))
+		return;
+
+	attr.config = strtol(buf, NULL, 0);
+	attr.type = PERF_TYPE_TRACEPOINT;
+	attr.sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_CALLCHAIN;
+	attr.sample_period = 1;
+	attr.wakeup_events = 1;
+
+	query = malloc(sizeof(*query) + sizeof(__u32) * num_progs);
+	for (i = 0; i < num_progs; i++) {
+		err = bpf_prog_test_load(file, BPF_PROG_TYPE_TRACEPOINT, &obj[i],
+				    &prog_fd[i]);
+		if (CHECK(err, "prog_load", "err %d errno %d\n", err, errno))
+			goto cleanup1;
+
+		bzero(&prog_info, sizeof(prog_info));
+		prog_info.jited_prog_len = 0;
+		prog_info.xlated_prog_len = 0;
+		prog_info.nr_map_ids = 0;
+		info_len = sizeof(prog_info);
+		err = bpf_prog_get_info_by_fd(prog_fd[i], &prog_info,
+					      &info_len);
+		if (CHECK(err, "bpf_prog_get_info_by_fd", "err %d errno %d\n",
+			  err, errno))
+			goto cleanup1;
+		saved_prog_ids[i] = prog_info.id;
+
+		pmu_fd[i] = syscall(__NR_perf_event_open, &attr, -1 /* pid */,
+				    0 /* cpu 0 */, -1 /* group id */,
+				    0 /* flags */);
+		if (CHECK(pmu_fd[i] < 0, "perf_event_open", "err %d errno %d\n",
+			  pmu_fd[i], errno))
+			goto cleanup2;
+		err = ioctl(pmu_fd[i], PERF_EVENT_IOC_ENABLE, 0);
+		if (CHECK(err, "perf_event_ioc_enable", "err %d errno %d\n",
+			  err, errno))
+			goto cleanup3;
+
+		if (i == 0) {
+			/* check NULL prog array query */
+			query->ids_len = num_progs;
+			err = ioctl(pmu_fd[i], PERF_EVENT_IOC_QUERY_BPF, query);
+			if (CHECK(err || query->prog_cnt != 0,
+				  "perf_event_ioc_query_bpf",
+				  "err %d errno %d query->prog_cnt %u\n",
+				  err, errno, query->prog_cnt))
+				goto cleanup3;
+		}
+
+		err = ioctl(pmu_fd[i], PERF_EVENT_IOC_SET_BPF, prog_fd[i]);
+		if (CHECK(err, "perf_event_ioc_set_bpf", "err %d errno %d\n",
+			  err, errno))
+			goto cleanup3;
+
+		if (i == 1) {
+			/* try to get # of programs only */
+			query->ids_len = 0;
+			err = ioctl(pmu_fd[i], PERF_EVENT_IOC_QUERY_BPF, query);
+			if (CHECK(err || query->prog_cnt != 2,
+				  "perf_event_ioc_query_bpf",
+				  "err %d errno %d query->prog_cnt %u\n",
+				  err, errno, query->prog_cnt))
+				goto cleanup3;
+
+			/* try a few negative tests */
+			/* invalid query pointer */
+			err = ioctl(pmu_fd[i], PERF_EVENT_IOC_QUERY_BPF,
+				    (struct perf_event_query_bpf *)0x1);
+			if (CHECK(!err || errno != EFAULT,
+				  "perf_event_ioc_query_bpf",
+				  "err %d errno %d\n", err, errno))
+				goto cleanup3;
+
+			/* no enough space */
+			query->ids_len = 1;
+			err = ioctl(pmu_fd[i], PERF_EVENT_IOC_QUERY_BPF, query);
+			if (CHECK(!err || errno != ENOSPC || query->prog_cnt != 2,
+				  "perf_event_ioc_query_bpf",
+				  "err %d errno %d query->prog_cnt %u\n",
+				  err, errno, query->prog_cnt))
+				goto cleanup3;
+		}
+
+		query->ids_len = num_progs;
+		err = ioctl(pmu_fd[i], PERF_EVENT_IOC_QUERY_BPF, query);
+		if (CHECK(err || query->prog_cnt != (i + 1),
+			  "perf_event_ioc_query_bpf",
+			  "err %d errno %d query->prog_cnt %u\n",
+			  err, errno, query->prog_cnt))
+			goto cleanup3;
+		for (j = 0; j < i + 1; j++)
+			if (CHECK(saved_prog_ids[j] != query->ids[j],
+				  "perf_event_ioc_query_bpf",
+				  "#%d saved_prog_id %x query prog_id %x\n",
+				  j, saved_prog_ids[j], query->ids[j]))
+				goto cleanup3;
+	}
+
+	i = num_progs - 1;
+	for (; i >= 0; i--) {
+ cleanup3:
+		ioctl(pmu_fd[i], PERF_EVENT_IOC_DISABLE);
+ cleanup2:
+		close(pmu_fd[i]);
+ cleanup1:
+		bpf_object__close(obj[i]);
+	}
+	free(query);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tp_btf_nullable.c b/tools/testing/selftests/bpf/prog_tests/tp_btf_nullable.c
new file mode 100644
index 000000000000..accc42e01f8a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tp_btf_nullable.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "test_tp_btf_nullable.skel.h"
+
+void test_tp_btf_nullable(void)
+{
+	if (!env.has_testmod) {
+		test__skip();
+		return;
+	}
+
+	RUN_TESTS(test_tp_btf_nullable);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/trace_ext.c b/tools/testing/selftests/bpf/prog_tests/trace_ext.c
new file mode 100644
index 000000000000..aabdff7bea3e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/trace_ext.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <sys/stat.h>
+#include <linux/sched.h>
+#include <sys/syscall.h>
+
+#include "test_pkt_md_access.skel.h"
+#include "test_trace_ext.skel.h"
+#include "test_trace_ext_tracing.skel.h"
+
+static __u32 duration;
+
+void test_trace_ext(void)
+{
+	struct test_pkt_md_access *skel_pkt = NULL;
+	struct test_trace_ext_tracing *skel_trace = NULL;
+	struct test_trace_ext_tracing__bss *bss_trace;
+	struct test_trace_ext *skel_ext = NULL;
+	struct test_trace_ext__bss *bss_ext;
+	int err, pkt_fd, ext_fd;
+	struct bpf_program *prog;
+	char buf[100];
+	__u64 len;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	/* open/load/attach test_pkt_md_access */
+	skel_pkt = test_pkt_md_access__open_and_load();
+	if (CHECK(!skel_pkt, "setup", "classifier/test_pkt_md_access open failed\n"))
+		goto cleanup;
+
+	err = test_pkt_md_access__attach(skel_pkt);
+	if (CHECK(err, "setup", "classifier/test_pkt_md_access attach failed: %d\n", err))
+		goto cleanup;
+
+	prog = skel_pkt->progs.test_pkt_md_access;
+	pkt_fd = bpf_program__fd(prog);
+
+	/* open extension */
+	skel_ext = test_trace_ext__open();
+	if (CHECK(!skel_ext, "setup", "freplace/test_pkt_md_access open failed\n"))
+		goto cleanup;
+
+	/* set extension's attach target - test_pkt_md_access  */
+	prog = skel_ext->progs.test_pkt_md_access_new;
+	bpf_program__set_attach_target(prog, pkt_fd, "test_pkt_md_access");
+
+	/* load/attach extension */
+	err = test_trace_ext__load(skel_ext);
+	if (CHECK(err, "setup", "freplace/test_pkt_md_access load failed\n")) {
+		libbpf_strerror(err, buf, sizeof(buf));
+		fprintf(stderr, "%s\n", buf);
+		goto cleanup;
+	}
+
+	err = test_trace_ext__attach(skel_ext);
+	if (CHECK(err, "setup", "freplace/test_pkt_md_access attach failed: %d\n", err))
+		goto cleanup;
+
+	prog = skel_ext->progs.test_pkt_md_access_new;
+	ext_fd = bpf_program__fd(prog);
+
+	/* open tracing  */
+	skel_trace = test_trace_ext_tracing__open();
+	if (CHECK(!skel_trace, "setup", "tracing/test_pkt_md_access_new open failed\n"))
+		goto cleanup;
+
+	/* set tracing's attach target - fentry */
+	prog = skel_trace->progs.fentry;
+	bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
+
+	/* set tracing's attach target - fexit */
+	prog = skel_trace->progs.fexit;
+	bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
+
+	/* load/attach tracing */
+	err = test_trace_ext_tracing__load(skel_trace);
+	if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new load")) {
+		libbpf_strerror(err, buf, sizeof(buf));
+		fprintf(stderr, "%s\n", buf);
+		goto cleanup;
+	}
+
+	err = test_trace_ext_tracing__attach(skel_trace);
+	if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new attach"))
+		goto cleanup;
+
+	/* trigger the test */
+	err = bpf_prog_test_run_opts(pkt_fd, &topts);
+	ASSERT_OK(err, "test_run_opts err");
+	ASSERT_OK(topts.retval, "test_run_opts retval");
+
+	bss_ext = skel_ext->bss;
+	bss_trace = skel_trace->bss;
+
+	len = bss_ext->ext_called;
+
+	ASSERT_NEQ(bss_ext->ext_called, 0,
+		  "failed to trigger freplace/test_pkt_md_access");
+	ASSERT_EQ(bss_trace->fentry_called, len,
+		  "failed to trigger fentry/test_pkt_md_access_new");
+	ASSERT_EQ(bss_trace->fexit_called, len,
+		   "failed to trigger fexit/test_pkt_md_access_new");
+
+cleanup:
+	test_trace_ext_tracing__destroy(skel_trace);
+	test_trace_ext__destroy(skel_ext);
+	test_pkt_md_access__destroy(skel_pkt);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/trace_printk.c b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
new file mode 100644
index 000000000000..e56e88596d64
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/trace_printk.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+
+#include "trace_printk.lskel.h"
+
+#define SEARCHMSG	"testing,testing"
+
+static void trace_pipe_cb(const char *str, void *data)
+{
+	if (strstr(str, SEARCHMSG) != NULL)
+		(*(int *)data)++;
+}
+
+void serial_test_trace_printk(void)
+{
+	struct trace_printk_lskel__bss *bss;
+	struct trace_printk_lskel *skel;
+	int err = 0, found = 0;
+
+	skel = trace_printk_lskel__open();
+	if (!ASSERT_OK_PTR(skel, "trace_printk__open"))
+		return;
+
+	ASSERT_EQ(skel->rodata->fmt[0], 'T', "skel->rodata->fmt[0]");
+	skel->rodata->fmt[0] = 't';
+
+	err = trace_printk_lskel__load(skel);
+	if (!ASSERT_OK(err, "trace_printk__load"))
+		goto cleanup;
+
+	bss = skel->bss;
+
+	err = trace_printk_lskel__attach(skel);
+	if (!ASSERT_OK(err, "trace_printk__attach"))
+		goto cleanup;
+
+	/* wait for tracepoint to trigger */
+	usleep(1);
+	trace_printk_lskel__detach(skel);
+
+	if (!ASSERT_GT(bss->trace_printk_ran, 0, "bss->trace_printk_ran"))
+		goto cleanup;
+
+	if (!ASSERT_GT(bss->trace_printk_ret, 0, "bss->trace_printk_ret"))
+		goto cleanup;
+
+	/* verify our search string is in the trace buffer */
+	ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000),
+		 "read_trace_pipe_iter");
+
+	if (!ASSERT_EQ(found, bss->trace_printk_ran, "found"))
+		goto cleanup;
+
+cleanup:
+	trace_printk_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c b/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c
new file mode 100644
index 000000000000..2af6a6f2096a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/trace_vprintk.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+
+#include "trace_vprintk.lskel.h"
+
+#define SEARCHMSG	"1,2,3,4,5,6,7,8,9,10"
+
+static void trace_pipe_cb(const char *str, void *data)
+{
+	if (strstr(str, SEARCHMSG) != NULL)
+		(*(int *)data)++;
+}
+
+void serial_test_trace_vprintk(void)
+{
+	struct trace_vprintk_lskel__bss *bss;
+	struct trace_vprintk_lskel *skel;
+	int err = 0, found = 0;
+
+	skel = trace_vprintk_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "trace_vprintk__open_and_load"))
+		goto cleanup;
+
+	bss = skel->bss;
+
+	err = trace_vprintk_lskel__attach(skel);
+	if (!ASSERT_OK(err, "trace_vprintk__attach"))
+		goto cleanup;
+
+	/* wait for tracepoint to trigger */
+	usleep(1);
+	trace_vprintk_lskel__detach(skel);
+
+	if (!ASSERT_GT(bss->trace_vprintk_ran, 0, "bss->trace_vprintk_ran"))
+		goto cleanup;
+
+	if (!ASSERT_GT(bss->trace_vprintk_ret, 0, "bss->trace_vprintk_ret"))
+		goto cleanup;
+
+	/* verify our search string is in the trace buffer */
+	ASSERT_OK(read_trace_pipe_iter(trace_pipe_cb, &found, 1000),
+		 "read_trace_pipe_iter");
+
+	if (!ASSERT_EQ(found, bss->trace_vprintk_ran, "found"))
+		goto cleanup;
+
+	if (!ASSERT_LT(bss->null_data_vprintk_ret, 0, "bss->null_data_vprintk_ret"))
+		goto cleanup;
+
+cleanup:
+	trace_vprintk_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tracing_failure.c b/tools/testing/selftests/bpf/prog_tests/tracing_failure.c
new file mode 100644
index 000000000000..10e231965589
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tracing_failure.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include "tracing_failure.skel.h"
+
+static void test_bpf_spin_lock(bool is_spin_lock)
+{
+	struct tracing_failure *skel;
+	int err;
+
+	skel = tracing_failure__open();
+	if (!ASSERT_OK_PTR(skel, "tracing_failure__open"))
+		return;
+
+	if (is_spin_lock)
+		bpf_program__set_autoload(skel->progs.test_spin_lock, true);
+	else
+		bpf_program__set_autoload(skel->progs.test_spin_unlock, true);
+
+	err = tracing_failure__load(skel);
+	if (!ASSERT_OK(err, "tracing_failure__load"))
+		goto out;
+
+	err = tracing_failure__attach(skel);
+	ASSERT_ERR(err, "tracing_failure__attach");
+
+out:
+	tracing_failure__destroy(skel);
+}
+
+static void test_tracing_fail_prog(const char *prog_name, const char *exp_msg)
+{
+	struct tracing_failure *skel;
+	struct bpf_program *prog;
+	char log_buf[256];
+	int err;
+
+	skel = tracing_failure__open();
+	if (!ASSERT_OK_PTR(skel, "tracing_failure__open"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto out;
+
+	bpf_program__set_autoload(prog, true);
+	bpf_program__set_log_buf(prog, log_buf, sizeof(log_buf));
+
+	err = tracing_failure__load(skel);
+	if (!ASSERT_ERR(err, "tracing_failure__load"))
+		goto out;
+
+	ASSERT_HAS_SUBSTR(log_buf, exp_msg, "log_buf");
+out:
+	tracing_failure__destroy(skel);
+}
+
+static void test_tracing_deny(void)
+{
+	int btf_id;
+
+	/* __rcu_read_lock depends on CONFIG_PREEMPT_RCU */
+	btf_id = libbpf_find_vmlinux_btf_id("__rcu_read_lock", BPF_TRACE_FENTRY);
+	if (btf_id <= 0) {
+		test__skip();
+		return;
+	}
+
+	test_tracing_fail_prog("tracing_deny",
+			       "Attaching tracing programs to function '__rcu_read_lock' is rejected.");
+}
+
+static void test_fexit_noreturns(void)
+{
+	test_tracing_fail_prog("fexit_noreturns",
+			       "Attaching fexit/fmod_ret to __noreturn function 'do_exit' is rejected.");
+}
+
+void test_tracing_failure(void)
+{
+	if (test__start_subtest("bpf_spin_lock"))
+		test_bpf_spin_lock(true);
+	if (test__start_subtest("bpf_spin_unlock"))
+		test_bpf_spin_lock(false);
+	if (test__start_subtest("tracing_deny"))
+		test_tracing_deny();
+	if (test__start_subtest("fexit_noreturns"))
+		test_fexit_noreturns();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/tracing_struct.c b/tools/testing/selftests/bpf/prog_tests/tracing_struct.c
new file mode 100644
index 000000000000..6f8c0bfb0415
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/tracing_struct.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "tracing_struct.skel.h"
+#include "tracing_struct_many_args.skel.h"
+
+static void test_struct_args(void)
+{
+	struct tracing_struct *skel;
+	int err;
+
+	skel = tracing_struct__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "tracing_struct__open_and_load"))
+		return;
+
+	err = tracing_struct__attach(skel);
+	if (!ASSERT_OK(err, "tracing_struct__attach"))
+		goto destroy_skel;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->t1_a_a, 2, "t1:a.a");
+	ASSERT_EQ(skel->bss->t1_a_b, 3, "t1:a.b");
+	ASSERT_EQ(skel->bss->t1_b, 1, "t1:b");
+	ASSERT_EQ(skel->bss->t1_c, 4, "t1:c");
+
+	ASSERT_EQ(skel->bss->t1_nregs, 4, "t1 nregs");
+	ASSERT_EQ(skel->bss->t1_reg0, 2, "t1 reg0");
+	ASSERT_EQ(skel->bss->t1_reg1, 3, "t1 reg1");
+	ASSERT_EQ(skel->bss->t1_reg2, 1, "t1 reg2");
+	ASSERT_EQ(skel->bss->t1_reg3, 4, "t1 reg3");
+	ASSERT_EQ(skel->bss->t1_ret, 10, "t1 ret");
+
+	ASSERT_EQ(skel->bss->t2_a, 1, "t2:a");
+	ASSERT_EQ(skel->bss->t2_b_a, 2, "t2:b.a");
+	ASSERT_EQ(skel->bss->t2_b_b, 3, "t2:b.b");
+	ASSERT_EQ(skel->bss->t2_c, 4, "t2:c");
+	ASSERT_EQ(skel->bss->t2_ret, 10, "t2 ret");
+
+	ASSERT_EQ(skel->bss->t3_a, 1, "t3:a");
+	ASSERT_EQ(skel->bss->t3_b, 4, "t3:b");
+	ASSERT_EQ(skel->bss->t3_c_a, 2, "t3:c.a");
+	ASSERT_EQ(skel->bss->t3_c_b, 3, "t3:c.b");
+	ASSERT_EQ(skel->bss->t3_ret, 10, "t3 ret");
+
+	ASSERT_EQ(skel->bss->t4_a_a, 10, "t4:a.a");
+	ASSERT_EQ(skel->bss->t4_b, 1, "t4:b");
+	ASSERT_EQ(skel->bss->t4_c, 2, "t4:c");
+	ASSERT_EQ(skel->bss->t4_d, 3, "t4:d");
+	ASSERT_EQ(skel->bss->t4_e_a, 2, "t4:e.a");
+	ASSERT_EQ(skel->bss->t4_e_b, 3, "t4:e.b");
+	ASSERT_EQ(skel->bss->t4_ret, 21, "t4 ret");
+
+	ASSERT_EQ(skel->bss->t5_ret, 1, "t5 ret");
+
+	ASSERT_EQ(skel->bss->t6, 1, "t6 ret");
+
+destroy_skel:
+	tracing_struct__destroy(skel);
+}
+
+static void test_struct_many_args(void)
+{
+	struct tracing_struct_many_args *skel;
+	int err;
+
+	skel = tracing_struct_many_args__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "tracing_struct_many_args__open_and_load"))
+		return;
+
+	err = tracing_struct_many_args__attach(skel);
+	if (!ASSERT_OK(err, "tracing_struct_many_args__attach"))
+		goto destroy_skel;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->t7_a, 16, "t7:a");
+	ASSERT_EQ(skel->bss->t7_b, 17, "t7:b");
+	ASSERT_EQ(skel->bss->t7_c, 18, "t7:c");
+	ASSERT_EQ(skel->bss->t7_d, 19, "t7:d");
+	ASSERT_EQ(skel->bss->t7_e, 20, "t7:e");
+	ASSERT_EQ(skel->bss->t7_f_a, 21, "t7:f.a");
+	ASSERT_EQ(skel->bss->t7_f_b, 22, "t7:f.b");
+	ASSERT_EQ(skel->bss->t7_ret, 133, "t7 ret");
+
+	ASSERT_EQ(skel->bss->t8_a, 16, "t8:a");
+	ASSERT_EQ(skel->bss->t8_b, 17, "t8:b");
+	ASSERT_EQ(skel->bss->t8_c, 18, "t8:c");
+	ASSERT_EQ(skel->bss->t8_d, 19, "t8:d");
+	ASSERT_EQ(skel->bss->t8_e, 20, "t8:e");
+	ASSERT_EQ(skel->bss->t8_f_a, 21, "t8:f.a");
+	ASSERT_EQ(skel->bss->t8_f_b, 22, "t8:f.b");
+	ASSERT_EQ(skel->bss->t8_g, 23, "t8:g");
+	ASSERT_EQ(skel->bss->t8_ret, 156, "t8 ret");
+
+	ASSERT_EQ(skel->bss->t9_a, 16, "t9:a");
+	ASSERT_EQ(skel->bss->t9_b, 17, "t9:b");
+	ASSERT_EQ(skel->bss->t9_c, 18, "t9:c");
+	ASSERT_EQ(skel->bss->t9_d, 19, "t9:d");
+	ASSERT_EQ(skel->bss->t9_e, 20, "t9:e");
+	ASSERT_EQ(skel->bss->t9_f, 21, "t9:f");
+	ASSERT_EQ(skel->bss->t9_g, 22, "t9:f");
+	ASSERT_EQ(skel->bss->t9_h_a, 23, "t9:h.a");
+	ASSERT_EQ(skel->bss->t9_h_b, 24, "t9:h.b");
+	ASSERT_EQ(skel->bss->t9_h_c, 25, "t9:h.c");
+	ASSERT_EQ(skel->bss->t9_h_d, 26, "t9:h.d");
+	ASSERT_EQ(skel->bss->t9_i, 27, "t9:i");
+	ASSERT_EQ(skel->bss->t9_ret, 258, "t9 ret");
+
+destroy_skel:
+	tracing_struct_many_args__destroy(skel);
+}
+
+static void test_union_args(void)
+{
+	struct tracing_struct *skel;
+	int err;
+
+	skel = tracing_struct__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "tracing_struct__open_and_load"))
+		return;
+
+	err = tracing_struct__attach(skel);
+	if (!ASSERT_OK(err, "tracing_struct__attach"))
+		goto out;
+
+	ASSERT_OK(trigger_module_test_read(256), "trigger_read");
+
+	ASSERT_EQ(skel->bss->ut1_a_a, 1, "ut1:a.arg.a");
+	ASSERT_EQ(skel->bss->ut1_b, 4, "ut1:b");
+	ASSERT_EQ(skel->bss->ut1_c, 5, "ut1:c");
+
+	ASSERT_EQ(skel->bss->ut2_a, 6, "ut2:a");
+	ASSERT_EQ(skel->bss->ut2_b_a, 2, "ut2:b.arg.a");
+	ASSERT_EQ(skel->bss->ut2_b_b, 3, "ut2:b.arg.b");
+
+out:
+	tracing_struct__destroy(skel);
+}
+
+void test_tracing_struct(void)
+{
+	if (test__start_subtest("struct_args"))
+		test_struct_args();
+	if (test__start_subtest("struct_many_args"))
+		test_struct_many_args();
+	if (test__start_subtest("union_args"))
+		test_union_args();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/trampoline_count.c b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c
new file mode 100644
index 000000000000..6cd7349d4a2b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/trampoline_count.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#define _GNU_SOURCE
+#include <test_progs.h>
+
+struct inst {
+	struct bpf_object *obj;
+	struct bpf_link   *link;
+};
+
+static struct bpf_program *load_prog(char *file, char *name, struct inst *inst)
+{
+	struct bpf_object *obj;
+	struct bpf_program *prog;
+	int err;
+
+	obj = bpf_object__open_file(file, NULL);
+	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
+		return NULL;
+
+	inst->obj = obj;
+
+	err = bpf_object__load(obj);
+	if (!ASSERT_OK(err, "obj_load"))
+		return NULL;
+
+	prog = bpf_object__find_program_by_name(obj, name);
+	if (!ASSERT_OK_PTR(prog, "obj_find_prog"))
+		return NULL;
+
+	return prog;
+}
+
+/* TODO: use different target function to run in concurrent mode */
+void serial_test_trampoline_count(void)
+{
+	char *file = "test_trampoline_count.bpf.o";
+	char *const progs[] = { "fentry_test", "fmod_ret_test", "fexit_test" };
+	int bpf_max_tramp_links, err, i, prog_fd;
+	struct bpf_program *prog;
+	struct bpf_link *link;
+	struct inst *inst;
+	LIBBPF_OPTS(bpf_test_run_opts, opts);
+
+	bpf_max_tramp_links = get_bpf_max_tramp_links();
+	if (!ASSERT_GE(bpf_max_tramp_links, 1, "bpf_max_tramp_links"))
+		return;
+	inst = calloc(bpf_max_tramp_links + 1, sizeof(*inst));
+	if (!ASSERT_OK_PTR(inst, "inst"))
+		return;
+
+	/* attach 'allowed' trampoline programs */
+	for (i = 0; i < bpf_max_tramp_links; i++) {
+		prog = load_prog(file, progs[i % ARRAY_SIZE(progs)], &inst[i]);
+		if (!prog)
+			goto cleanup;
+
+		link = bpf_program__attach(prog);
+		if (!ASSERT_OK_PTR(link, "attach_prog"))
+			goto cleanup;
+
+		inst[i].link = link;
+	}
+
+	/* and try 1 extra.. */
+	prog = load_prog(file, "fmod_ret_test", &inst[i]);
+	if (!prog)
+		goto cleanup;
+
+	/* ..that needs to fail */
+	link = bpf_program__attach(prog);
+	if (!ASSERT_ERR_PTR(link, "attach_prog")) {
+		inst[i].link = link;
+		goto cleanup;
+	}
+
+	/* with E2BIG error */
+	if (!ASSERT_EQ(libbpf_get_error(link), -E2BIG, "E2BIG"))
+		goto cleanup;
+	if (!ASSERT_EQ(link, NULL, "ptr_is_null"))
+		goto cleanup;
+
+	/* and finally execute the probe */
+	prog_fd = bpf_program__fd(prog);
+	if (!ASSERT_GE(prog_fd, 0, "bpf_program__fd"))
+		goto cleanup;
+
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	if (!ASSERT_OK(err, "bpf_prog_test_run_opts"))
+		goto cleanup;
+
+	ASSERT_EQ(opts.retval & 0xffff, 33, "bpf_modify_return_test.result");
+	ASSERT_EQ(opts.retval >> 16, 2, "bpf_modify_return_test.side_effect");
+
+cleanup:
+	for (; i >= 0; i--) {
+		bpf_link__destroy(inst[i].link);
+		bpf_object__close(inst[i].obj);
+	}
+	free(inst);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/type_cast.c b/tools/testing/selftests/bpf/prog_tests/type_cast.c
new file mode 100644
index 000000000000..9317d5fa2635
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/type_cast.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "type_cast.skel.h"
+
+static void test_xdp(void)
+{
+	struct type_cast *skel;
+	int err, prog_fd;
+	char buf[128];
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	skel = type_cast__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.md_xdp, true);
+	err = type_cast__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.md_xdp);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, XDP_PASS, "xdp test_run retval");
+
+	ASSERT_EQ(skel->bss->ifindex, 1, "xdp_md ifindex");
+	ASSERT_EQ(skel->bss->ifindex, skel->bss->ingress_ifindex, "xdp_md ingress_ifindex");
+	ASSERT_STREQ(skel->bss->name, "lo", "xdp_md name");
+	ASSERT_NEQ(skel->bss->inum, 0, "xdp_md inum");
+
+out:
+	type_cast__destroy(skel);
+}
+
+static void test_tc(void)
+{
+	struct type_cast *skel;
+	int err, prog_fd;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.repeat = 1,
+	);
+
+	skel = type_cast__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_program__set_autoload(skel->progs.md_skb, true);
+	err = type_cast__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto out;
+
+	prog_fd = bpf_program__fd(skel->progs.md_skb);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "tc test_run retval");
+
+	ASSERT_EQ(skel->bss->meta_len, 0, "skb meta_len");
+	ASSERT_EQ(skel->bss->frag0_len, 0, "skb frag0_len");
+	ASSERT_NEQ(skel->bss->kskb_len, 0, "skb len");
+	ASSERT_NEQ(skel->bss->kskb2_len, 0, "skb2 len");
+	ASSERT_EQ(skel->bss->kskb_len, skel->bss->kskb2_len, "skb len compare");
+
+out:
+	type_cast__destroy(skel);
+}
+
+static const char * const negative_tests[] = {
+	"untrusted_ptr",
+	"kctx_u64",
+};
+
+static void test_negative(void)
+{
+	struct bpf_program *prog;
+	struct type_cast *skel;
+	int i, err;
+
+	for (i = 0; i < ARRAY_SIZE(negative_tests); i++) {
+		skel = type_cast__open();
+		if (!ASSERT_OK_PTR(skel, "skel_open"))
+			return;
+
+		prog = bpf_object__find_program_by_name(skel->obj, negative_tests[i]);
+		if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+			goto out;
+		bpf_program__set_autoload(prog, true);
+		err = type_cast__load(skel);
+		ASSERT_ERR(err, "skel_load");
+out:
+		type_cast__destroy(skel);
+	}
+}
+
+void test_type_cast(void)
+{
+	if (test__start_subtest("xdp"))
+		test_xdp();
+	if (test__start_subtest("tc"))
+		test_tc();
+	if (test__start_subtest("negative"))
+		test_negative();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/udp_limit.c b/tools/testing/selftests/bpf/prog_tests/udp_limit.c
new file mode 100644
index 000000000000..2643d896ddae
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/udp_limit.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "udp_limit.skel.h"
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+void test_udp_limit(void)
+{
+	struct udp_limit *skel;
+	int fd1 = -1, fd2 = -1;
+	int cgroup_fd;
+
+	cgroup_fd = test__join_cgroup("/udp_limit");
+	if (!ASSERT_GE(cgroup_fd, 0, "cg-join"))
+		return;
+
+	skel = udp_limit__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel-load"))
+		goto close_cgroup_fd;
+
+	skel->links.sock = bpf_program__attach_cgroup(skel->progs.sock, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.sock, "cg_attach_sock"))
+		goto close_skeleton;
+	skel->links.sock_release = bpf_program__attach_cgroup(skel->progs.sock_release, cgroup_fd);
+	if (!ASSERT_OK_PTR(skel->links.sock_release, "cg_attach_sock_release"))
+		goto close_skeleton;
+
+	/* BPF program enforces a single UDP socket per cgroup,
+	 * verify that.
+	 */
+	fd1 = socket(AF_INET, SOCK_DGRAM, 0);
+	if (!ASSERT_GE(fd1, 0, "socket(fd1)"))
+		goto close_skeleton;
+
+	fd2 = socket(AF_INET, SOCK_DGRAM, 0);
+	if (!ASSERT_LT(fd2, 0, "socket(fd2)"))
+		goto close_skeleton;
+
+	/* We can reopen again after close. */
+	close(fd1);
+	fd1 = -1;
+
+	fd1 = socket(AF_INET, SOCK_DGRAM, 0);
+	if (!ASSERT_GE(fd1, 0, "socket(fd1-again)"))
+		goto close_skeleton;
+
+	/* Make sure the program was invoked the expected
+	 * number of times:
+	 * - open fd1           - BPF_CGROUP_INET_SOCK_CREATE
+	 * - attempt to openfd2 - BPF_CGROUP_INET_SOCK_CREATE
+	 * - close fd1          - BPF_CGROUP_INET_SOCK_RELEASE
+	 * - open fd1 again     - BPF_CGROUP_INET_SOCK_CREATE
+	 */
+	if (!ASSERT_EQ(skel->bss->invocations, 4, "bss-invocations"))
+		goto close_skeleton;
+
+	/* We should still have a single socket in use */
+	if (!ASSERT_EQ(skel->bss->in_use, 1, "bss-in_use"))
+		goto close_skeleton;
+
+close_skeleton:
+	if (fd1 >= 0)
+		close(fd1);
+	if (fd2 >= 0)
+		close(fd2);
+	udp_limit__destroy(skel);
+close_cgroup_fd:
+	close(cgroup_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uninit_stack.c b/tools/testing/selftests/bpf/prog_tests/uninit_stack.c
new file mode 100644
index 000000000000..e64c71948491
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uninit_stack.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include "uninit_stack.skel.h"
+
+void test_uninit_stack(void)
+{
+	RUN_TESTS(uninit_stack);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c b/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c
new file mode 100644
index 000000000000..472f4f9fa95f
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/unpriv_bpf_disabled.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "test_unpriv_bpf_disabled.skel.h"
+
+#include "cap_helpers.h"
+#include "bpf_util.h"
+
+/* Using CAP_LAST_CAP is risky here, since it can get pulled in from
+ * an old /usr/include/linux/capability.h and be < CAP_BPF; as a result
+ * CAP_BPF would not be included in ALL_CAPS.  Instead use CAP_BPF as
+ * we know its value is correct since it is explicitly defined in
+ * cap_helpers.h.
+ */
+#define ALL_CAPS	((2ULL << CAP_BPF) - 1)
+
+#define PINPATH		"/sys/fs/bpf/unpriv_bpf_disabled_"
+#define NUM_MAPS	7
+
+static __u32 got_perfbuf_val;
+static __u32 got_ringbuf_val;
+
+static int process_ringbuf(void *ctx, void *data, size_t len)
+{
+	if (ASSERT_EQ(len, sizeof(__u32), "ringbuf_size_valid"))
+		got_ringbuf_val = *(__u32 *)data;
+	return 0;
+}
+
+static void process_perfbuf(void *ctx, int cpu, void *data, __u32 len)
+{
+	if (ASSERT_EQ(len, sizeof(__u32), "perfbuf_size_valid"))
+		got_perfbuf_val = *(__u32 *)data;
+}
+
+static int sysctl_set(const char *sysctl_path, char *old_val, const char *new_val)
+{
+	int ret = 0;
+	FILE *fp;
+
+	fp = fopen(sysctl_path, "r+");
+	if (!fp)
+		return -errno;
+	if (old_val && fscanf(fp, "%s", old_val) <= 0) {
+		ret = -ENOENT;
+	} else if (!old_val || strcmp(old_val, new_val) != 0) {
+		fseek(fp, 0, SEEK_SET);
+		if (fprintf(fp, "%s", new_val) < 0)
+			ret = -errno;
+	}
+	fclose(fp);
+
+	return ret;
+}
+
+static void test_unpriv_bpf_disabled_positive(struct test_unpriv_bpf_disabled *skel,
+					      __u32 prog_id, int prog_fd, int perf_fd,
+					      char **map_paths, int *map_fds)
+{
+	struct perf_buffer *perfbuf = NULL;
+	struct ring_buffer *ringbuf = NULL;
+	int i, nr_cpus, link_fd = -1;
+
+	nr_cpus = bpf_num_possible_cpus();
+
+	skel->bss->perfbuf_val = 1;
+	skel->bss->ringbuf_val = 2;
+
+	/* Positive tests for unprivileged BPF disabled. Verify we can
+	 * - retrieve and interact with pinned maps;
+	 * - set up and interact with perf buffer;
+	 * - set up and interact with ring buffer;
+	 * - create a link
+	 */
+	perfbuf = perf_buffer__new(bpf_map__fd(skel->maps.perfbuf), 8, process_perfbuf, NULL, NULL,
+				   NULL);
+	if (!ASSERT_OK_PTR(perfbuf, "perf_buffer__new"))
+		goto cleanup;
+
+	ringbuf = ring_buffer__new(bpf_map__fd(skel->maps.ringbuf), process_ringbuf, NULL, NULL);
+	if (!ASSERT_OK_PTR(ringbuf, "ring_buffer__new"))
+		goto cleanup;
+
+	/* trigger & validate perf event, ringbuf output */
+	usleep(1);
+
+	ASSERT_GT(perf_buffer__poll(perfbuf, 100), -1, "perf_buffer__poll");
+	ASSERT_EQ(got_perfbuf_val, skel->bss->perfbuf_val, "check_perfbuf_val");
+	ASSERT_EQ(ring_buffer__consume(ringbuf), 1, "ring_buffer__consume");
+	ASSERT_EQ(got_ringbuf_val, skel->bss->ringbuf_val, "check_ringbuf_val");
+
+	for (i = 0; i < NUM_MAPS; i++) {
+		map_fds[i] = bpf_obj_get(map_paths[i]);
+		if (!ASSERT_GT(map_fds[i], -1, "obj_get"))
+			goto cleanup;
+	}
+
+	for (i = 0; i < NUM_MAPS; i++) {
+		bool prog_array = strstr(map_paths[i], "prog_array") != NULL;
+		bool array = strstr(map_paths[i], "array") != NULL;
+		bool buf = strstr(map_paths[i], "buf") != NULL;
+		__u32 key = 0, vals[nr_cpus], lookup_vals[nr_cpus];
+		__u32 expected_val = 1;
+		int j;
+
+		/* skip ringbuf, perfbuf */
+		if (buf)
+			continue;
+
+		for (j = 0; j < nr_cpus; j++)
+			vals[j] = expected_val;
+
+		if (prog_array) {
+			/* need valid prog array value */
+			vals[0] = prog_fd;
+			/* prog array lookup returns prog id, not fd */
+			expected_val = prog_id;
+		}
+		ASSERT_OK(bpf_map_update_elem(map_fds[i], &key, vals, 0), "map_update_elem");
+		ASSERT_OK(bpf_map_lookup_elem(map_fds[i], &key, &lookup_vals), "map_lookup_elem");
+		ASSERT_EQ(lookup_vals[0], expected_val, "map_lookup_elem_values");
+		if (!array)
+			ASSERT_OK(bpf_map_delete_elem(map_fds[i], &key), "map_delete_elem");
+	}
+
+	link_fd = bpf_link_create(bpf_program__fd(skel->progs.handle_perf_event), perf_fd,
+				  BPF_PERF_EVENT, NULL);
+	ASSERT_GT(link_fd, 0, "link_create");
+
+cleanup:
+	if (link_fd)
+		close(link_fd);
+	if (perfbuf)
+		perf_buffer__free(perfbuf);
+	if (ringbuf)
+		ring_buffer__free(ringbuf);
+}
+
+static void test_unpriv_bpf_disabled_negative(struct test_unpriv_bpf_disabled *skel,
+					      __u32 prog_id, int prog_fd, int perf_fd,
+					      char **map_paths, int *map_fds)
+{
+	const struct bpf_insn prog_insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	const size_t prog_insn_cnt = ARRAY_SIZE(prog_insns);
+	LIBBPF_OPTS(bpf_prog_load_opts, load_opts);
+	struct bpf_map_info map_info = {};
+	__u32 map_info_len = sizeof(map_info);
+	struct bpf_link_info link_info = {};
+	__u32 link_info_len = sizeof(link_info);
+	struct btf *btf = NULL;
+	__u32 attach_flags = 0;
+	__u32 prog_ids[3] = {};
+	__u32 prog_cnt = 3;
+	__u32 next;
+	int i;
+
+	/* Negative tests for unprivileged BPF disabled.  Verify we cannot
+	 * - load BPF programs;
+	 * - create BPF maps;
+	 * - get a prog/map/link fd by id;
+	 * - get next prog/map/link id
+	 * - query prog
+	 * - BTF load
+	 */
+	ASSERT_EQ(bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, "simple_prog", "GPL",
+				prog_insns, prog_insn_cnt, &load_opts),
+		  -EPERM, "prog_load_fails");
+
+	/* some map types require particular correct parameters which could be
+	 * sanity-checked before enforcing -EPERM, so only validate that
+	 * the simple ARRAY and HASH maps are failing with -EPERM
+	 */
+	for (i = BPF_MAP_TYPE_HASH; i <= BPF_MAP_TYPE_ARRAY; i++)
+		ASSERT_EQ(bpf_map_create(i, NULL, sizeof(int), sizeof(int), 1, NULL),
+			  -EPERM, "map_create_fails");
+
+	ASSERT_EQ(bpf_prog_get_fd_by_id(prog_id), -EPERM, "prog_get_fd_by_id_fails");
+	ASSERT_EQ(bpf_prog_get_next_id(prog_id, &next), -EPERM, "prog_get_next_id_fails");
+	ASSERT_EQ(bpf_prog_get_next_id(0, &next), -EPERM, "prog_get_next_id_fails");
+
+	if (ASSERT_OK(bpf_map_get_info_by_fd(map_fds[0], &map_info, &map_info_len),
+		      "obj_get_info_by_fd")) {
+		ASSERT_EQ(bpf_map_get_fd_by_id(map_info.id), -EPERM, "map_get_fd_by_id_fails");
+		ASSERT_EQ(bpf_map_get_next_id(map_info.id, &next), -EPERM,
+			  "map_get_next_id_fails");
+	}
+	ASSERT_EQ(bpf_map_get_next_id(0, &next), -EPERM, "map_get_next_id_fails");
+
+	if (ASSERT_OK(bpf_link_get_info_by_fd(bpf_link__fd(skel->links.sys_nanosleep_enter),
+					      &link_info, &link_info_len),
+		      "obj_get_info_by_fd")) {
+		ASSERT_EQ(bpf_link_get_fd_by_id(link_info.id), -EPERM, "link_get_fd_by_id_fails");
+		ASSERT_EQ(bpf_link_get_next_id(link_info.id, &next), -EPERM,
+			  "link_get_next_id_fails");
+	}
+	ASSERT_EQ(bpf_link_get_next_id(0, &next), -EPERM, "link_get_next_id_fails");
+
+	ASSERT_EQ(bpf_prog_query(prog_fd, BPF_TRACE_FENTRY, 0, &attach_flags, prog_ids,
+				 &prog_cnt), -EPERM, "prog_query_fails");
+
+	btf = btf__new_empty();
+	if (ASSERT_OK_PTR(btf, "empty_btf") &&
+	    ASSERT_GT(btf__add_int(btf, "int", 4, 0), 0, "unpriv_int_type")) {
+		const void *raw_btf_data;
+		__u32 raw_btf_size;
+
+		raw_btf_data = btf__raw_data(btf, &raw_btf_size);
+		if (ASSERT_OK_PTR(raw_btf_data, "raw_btf_data_good"))
+			ASSERT_EQ(bpf_btf_load(raw_btf_data, raw_btf_size, NULL), -EPERM,
+				  "bpf_btf_load_fails");
+	}
+	btf__free(btf);
+}
+
+void test_unpriv_bpf_disabled(void)
+{
+	char *map_paths[NUM_MAPS] = {	PINPATH	"array",
+					PINPATH "percpu_array",
+					PINPATH "hash",
+					PINPATH "percpu_hash",
+					PINPATH "perfbuf",
+					PINPATH "ringbuf",
+					PINPATH "prog_array" };
+	int map_fds[NUM_MAPS];
+	struct test_unpriv_bpf_disabled *skel;
+	char unprivileged_bpf_disabled_orig[32] = {};
+	char perf_event_paranoid_orig[32] = {};
+	struct bpf_prog_info prog_info = {};
+	__u32 prog_info_len = sizeof(prog_info);
+	struct perf_event_attr attr = {};
+	int prog_fd, perf_fd = -1, i, ret;
+	__u64 save_caps = 0;
+	__u32 prog_id;
+
+	skel = test_unpriv_bpf_disabled__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->test_pid = getpid();
+
+	map_fds[0] = bpf_map__fd(skel->maps.array);
+	map_fds[1] = bpf_map__fd(skel->maps.percpu_array);
+	map_fds[2] = bpf_map__fd(skel->maps.hash);
+	map_fds[3] = bpf_map__fd(skel->maps.percpu_hash);
+	map_fds[4] = bpf_map__fd(skel->maps.perfbuf);
+	map_fds[5] = bpf_map__fd(skel->maps.ringbuf);
+	map_fds[6] = bpf_map__fd(skel->maps.prog_array);
+
+	for (i = 0; i < NUM_MAPS; i++)
+		ASSERT_OK(bpf_obj_pin(map_fds[i], map_paths[i]), "pin map_fd");
+
+	/* allow user without caps to use perf events */
+	if (!ASSERT_OK(sysctl_set("/proc/sys/kernel/perf_event_paranoid", perf_event_paranoid_orig,
+				  "-1"),
+		       "set_perf_event_paranoid"))
+		goto cleanup;
+	/* ensure unprivileged bpf disabled is set */
+	ret = sysctl_set("/proc/sys/kernel/unprivileged_bpf_disabled",
+			 unprivileged_bpf_disabled_orig, "2");
+	if (ret == -EPERM) {
+		/* if unprivileged_bpf_disabled=1, we get -EPERM back; that's okay. */
+		if (!ASSERT_OK(strcmp(unprivileged_bpf_disabled_orig, "1"),
+			       "unprivileged_bpf_disabled_on"))
+			goto cleanup;
+	} else {
+		if (!ASSERT_OK(ret, "set unprivileged_bpf_disabled"))
+			goto cleanup;
+	}
+
+	prog_fd = bpf_program__fd(skel->progs.sys_nanosleep_enter);
+	ASSERT_OK(bpf_prog_get_info_by_fd(prog_fd, &prog_info, &prog_info_len),
+		  "obj_get_info_by_fd");
+	prog_id = prog_info.id;
+	ASSERT_GT(prog_id, 0, "valid_prog_id");
+
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.freq = 1;
+	attr.sample_freq = 1000;
+	perf_fd = syscall(__NR_perf_event_open, &attr, -1, 0, -1, PERF_FLAG_FD_CLOEXEC);
+	if (!ASSERT_GE(perf_fd, 0, "perf_fd"))
+		goto cleanup;
+
+	if (!ASSERT_OK(test_unpriv_bpf_disabled__attach(skel), "skel_attach"))
+		goto cleanup;
+
+	if (!ASSERT_OK(cap_disable_effective(ALL_CAPS, &save_caps), "disable caps"))
+		goto cleanup;
+
+	if (test__start_subtest("unpriv_bpf_disabled_positive"))
+		test_unpriv_bpf_disabled_positive(skel, prog_id, prog_fd, perf_fd, map_paths,
+						  map_fds);
+
+	if (test__start_subtest("unpriv_bpf_disabled_negative"))
+		test_unpriv_bpf_disabled_negative(skel, prog_id, prog_fd, perf_fd, map_paths,
+						  map_fds);
+
+cleanup:
+	close(perf_fd);
+	if (save_caps)
+		cap_enable_effective(save_caps, NULL);
+	if (strlen(perf_event_paranoid_orig) > 0)
+		sysctl_set("/proc/sys/kernel/perf_event_paranoid", NULL, perf_event_paranoid_orig);
+	if (strlen(unprivileged_bpf_disabled_orig) > 0)
+		sysctl_set("/proc/sys/kernel/unprivileged_bpf_disabled", NULL,
+			   unprivileged_bpf_disabled_orig);
+	for (i = 0; i < NUM_MAPS; i++)
+		unlink(map_paths[i]);
+	test_unpriv_bpf_disabled__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe.c b/tools/testing/selftests/bpf/prog_tests/uprobe.c
new file mode 100644
index 000000000000..86404476c1da
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uprobe.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Hengqi Chen */
+
+#include <test_progs.h>
+#include <asm/ptrace.h>
+#include "test_uprobe.skel.h"
+
+static FILE *urand_spawn(int *pid)
+{
+	FILE *f;
+
+	/* urandom_read's stdout is wired into f */
+	f = popen("./urandom_read 1 report-pid", "r");
+	if (!f)
+		return NULL;
+
+	if (fscanf(f, "%d", pid) != 1) {
+		pclose(f);
+		errno = EINVAL;
+		return NULL;
+	}
+
+	return f;
+}
+
+static int urand_trigger(FILE **urand_pipe)
+{
+	int exit_code;
+
+	/* pclose() waits for child process to exit and returns their exit code */
+	exit_code = pclose(*urand_pipe);
+	*urand_pipe = NULL;
+
+	return exit_code;
+}
+
+static void test_uprobe_attach(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct test_uprobe *skel;
+	FILE *urand_pipe = NULL;
+	int urand_pid = 0, err;
+
+	skel = test_uprobe__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	urand_pipe = urand_spawn(&urand_pid);
+	if (!ASSERT_OK_PTR(urand_pipe, "urand_spawn"))
+		goto cleanup;
+
+	skel->bss->my_pid = urand_pid;
+
+	/* Manual attach uprobe to urandlib_api
+	 * There are two `urandlib_api` symbols in .dynsym section:
+	 *   - urandlib_api@LIBURANDOM_READ_1.0.0
+	 *   - urandlib_api@@LIBURANDOM_READ_2.0.0
+	 * Both are global bind and would cause a conflict if user
+	 * specify the symbol name without a version suffix
+	 */
+	uprobe_opts.func_name = "urandlib_api";
+	skel->links.test4 = bpf_program__attach_uprobe_opts(skel->progs.test4,
+							    urand_pid,
+							    "./liburandom_read.so",
+							    0 /* offset */,
+							    &uprobe_opts);
+	if (!ASSERT_ERR_PTR(skel->links.test4, "urandlib_api_attach_conflict"))
+		goto cleanup;
+
+	uprobe_opts.func_name = "urandlib_api@LIBURANDOM_READ_1.0.0";
+	skel->links.test4 = bpf_program__attach_uprobe_opts(skel->progs.test4,
+							    urand_pid,
+							    "./liburandom_read.so",
+							    0 /* offset */,
+							    &uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.test4, "urandlib_api_attach_ok"))
+		goto cleanup;
+
+	/* Auto attach 3 u[ret]probes to urandlib_api_sameoffset */
+	err = test_uprobe__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger urandom_read */
+	ASSERT_OK(urand_trigger(&urand_pipe), "urand_exit_code");
+
+	ASSERT_EQ(skel->bss->test1_result, 1, "urandlib_api_sameoffset");
+	ASSERT_EQ(skel->bss->test2_result, 1, "urandlib_api_sameoffset@v1");
+	ASSERT_EQ(skel->bss->test3_result, 3, "urandlib_api_sameoffset@@v2");
+	ASSERT_EQ(skel->bss->test4_result, 1, "urandlib_api");
+
+cleanup:
+	if (urand_pipe)
+		pclose(urand_pipe);
+	test_uprobe__destroy(skel);
+}
+
+#ifdef __x86_64__
+__naked __maybe_unused unsigned long uprobe_regs_change_trigger(void)
+{
+	asm volatile (
+		"ret\n"
+	);
+}
+
+static __naked void uprobe_regs_change(struct pt_regs *before, struct pt_regs *after)
+{
+	asm volatile (
+		"movq %r11,  48(%rdi)\n"
+		"movq %r10,  56(%rdi)\n"
+		"movq  %r9,  64(%rdi)\n"
+		"movq  %r8,  72(%rdi)\n"
+		"movq %rax,  80(%rdi)\n"
+		"movq %rcx,  88(%rdi)\n"
+		"movq %rdx,  96(%rdi)\n"
+		"movq %rsi, 104(%rdi)\n"
+		"movq %rdi, 112(%rdi)\n"
+
+		/* save 2nd argument */
+		"pushq %rsi\n"
+		"call uprobe_regs_change_trigger\n"
+
+		/* save  return value and load 2nd argument pointer to rax */
+		"pushq %rax\n"
+		"movq 8(%rsp), %rax\n"
+
+		"movq %r11,  48(%rax)\n"
+		"movq %r10,  56(%rax)\n"
+		"movq  %r9,  64(%rax)\n"
+		"movq  %r8,  72(%rax)\n"
+		"movq %rcx,  88(%rax)\n"
+		"movq %rdx,  96(%rax)\n"
+		"movq %rsi, 104(%rax)\n"
+		"movq %rdi, 112(%rax)\n"
+
+		/* restore return value and 2nd argument */
+		"pop %rax\n"
+		"pop %rsi\n"
+
+		"movq %rax,  80(%rsi)\n"
+		"ret\n"
+	);
+}
+
+static void regs_common(void)
+{
+	struct pt_regs before = {}, after = {}, expected = {
+		.rax = 0xc0ffe,
+		.rcx = 0xbad,
+		.rdx = 0xdead,
+		.r8  = 0x8,
+		.r9  = 0x9,
+		.r10 = 0x10,
+		.r11 = 0x11,
+		.rdi = 0x12,
+		.rsi = 0x13,
+	};
+	LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct test_uprobe *skel;
+
+	skel = test_uprobe__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->my_pid = getpid();
+	skel->bss->regs = expected;
+
+	uprobe_opts.func_name = "uprobe_regs_change_trigger";
+	skel->links.test_regs_change = bpf_program__attach_uprobe_opts(skel->progs.test_regs_change,
+							    -1,
+							    "/proc/self/exe",
+							    0 /* offset */,
+							    &uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.test_regs_change, "bpf_program__attach_uprobe_opts"))
+		goto cleanup;
+
+	uprobe_regs_change(&before, &after);
+
+	ASSERT_EQ(after.rax, expected.rax, "ax");
+	ASSERT_EQ(after.rcx, expected.rcx, "cx");
+	ASSERT_EQ(after.rdx, expected.rdx, "dx");
+	ASSERT_EQ(after.r8,  expected.r8,  "r8");
+	ASSERT_EQ(after.r9,  expected.r9,  "r9");
+	ASSERT_EQ(after.r10, expected.r10, "r10");
+	ASSERT_EQ(after.r11, expected.r11, "r11");
+	ASSERT_EQ(after.rdi, expected.rdi, "rdi");
+	ASSERT_EQ(after.rsi, expected.rsi, "rsi");
+
+cleanup:
+	test_uprobe__destroy(skel);
+}
+
+static noinline unsigned long uprobe_regs_change_ip_1(void)
+{
+	return 0xc0ffee;
+}
+
+static noinline unsigned long uprobe_regs_change_ip_2(void)
+{
+	return 0xdeadbeef;
+}
+
+static void regs_ip(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct test_uprobe *skel;
+	unsigned long ret;
+
+	skel = test_uprobe__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	skel->bss->my_pid = getpid();
+	skel->bss->ip = (unsigned long) uprobe_regs_change_ip_2;
+
+	uprobe_opts.func_name = "uprobe_regs_change_ip_1";
+	skel->links.test_regs_change_ip = bpf_program__attach_uprobe_opts(
+						skel->progs.test_regs_change_ip,
+						-1,
+						"/proc/self/exe",
+						0 /* offset */,
+						&uprobe_opts);
+	if (!ASSERT_OK_PTR(skel->links.test_regs_change_ip, "bpf_program__attach_uprobe_opts"))
+		goto cleanup;
+
+	ret = uprobe_regs_change_ip_1();
+	ASSERT_EQ(ret, 0xdeadbeef, "ret");
+
+cleanup:
+	test_uprobe__destroy(skel);
+}
+
+static void test_uprobe_regs_change(void)
+{
+	if (test__start_subtest("regs_change_common"))
+		regs_common();
+	if (test__start_subtest("regs_change_ip"))
+		regs_ip();
+}
+#else
+static void test_uprobe_regs_change(void) { }
+#endif
+
+void test_uprobe(void)
+{
+	if (test__start_subtest("attach"))
+		test_uprobe_attach();
+	test_uprobe_regs_change();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_autoattach.c b/tools/testing/selftests/bpf/prog_tests/uprobe_autoattach.c
new file mode 100644
index 000000000000..d5b3377aa33c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uprobe_autoattach.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+
+#include <test_progs.h>
+#include "test_uprobe_autoattach.skel.h"
+
+/* uprobe attach point */
+static noinline int autoattach_trigger_func(int arg1, int arg2, int arg3,
+					    int arg4, int arg5, int arg6,
+					    int arg7, int arg8)
+{
+	asm volatile ("");
+	return arg1 + arg2 + arg3 + arg4 + arg5 + arg6 + arg7 + arg8 + 1;
+}
+
+void test_uprobe_autoattach(void)
+{
+	const char *devnull_str = "/dev/null";
+	struct test_uprobe_autoattach *skel;
+	int trigger_ret;
+	FILE *devnull;
+
+	skel = test_uprobe_autoattach__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	if (!ASSERT_OK(test_uprobe_autoattach__attach(skel), "skel_attach"))
+		goto cleanup;
+
+	skel->bss->test_pid = getpid();
+
+	/* trigger & validate uprobe & uretprobe */
+	trigger_ret = autoattach_trigger_func(1, 2, 3, 4, 5, 6, 7, 8);
+
+	skel->bss->test_pid = getpid();
+
+	/* trigger & validate shared library u[ret]probes attached by name */
+	devnull = fopen(devnull_str, "r");
+
+	ASSERT_EQ(skel->bss->uprobe_byname_parm1, 1, "check_uprobe_byname_parm1");
+	ASSERT_EQ(skel->bss->uprobe_byname_ran, 1, "check_uprobe_byname_ran");
+	ASSERT_EQ(skel->bss->uretprobe_byname_rc, trigger_ret, "check_uretprobe_byname_rc");
+	ASSERT_EQ(skel->bss->uretprobe_byname_ret, trigger_ret, "check_uretprobe_byname_ret");
+	ASSERT_EQ(skel->bss->uretprobe_byname_ran, 2, "check_uretprobe_byname_ran");
+	ASSERT_EQ(skel->bss->uprobe_byname2_parm1, (__u64)(long)devnull_str,
+		  "check_uprobe_byname2_parm1");
+	ASSERT_EQ(skel->bss->uprobe_byname2_ran, 3, "check_uprobe_byname2_ran");
+	ASSERT_EQ(skel->bss->uretprobe_byname2_rc, (__u64)(long)devnull,
+		  "check_uretprobe_byname2_rc");
+	ASSERT_EQ(skel->bss->uretprobe_byname2_ran, 4, "check_uretprobe_byname2_ran");
+
+	ASSERT_EQ(skel->bss->a[0], 1, "arg1");
+	ASSERT_EQ(skel->bss->a[1], 2, "arg2");
+	ASSERT_EQ(skel->bss->a[2], 3, "arg3");
+#if FUNC_REG_ARG_CNT > 3
+	ASSERT_EQ(skel->bss->a[3], 4, "arg4");
+#endif
+#if FUNC_REG_ARG_CNT > 4
+	ASSERT_EQ(skel->bss->a[4], 5, "arg5");
+#endif
+#if FUNC_REG_ARG_CNT > 5
+	ASSERT_EQ(skel->bss->a[5], 6, "arg6");
+#endif
+#if FUNC_REG_ARG_CNT > 6
+	ASSERT_EQ(skel->bss->a[6], 7, "arg7");
+#endif
+#if FUNC_REG_ARG_CNT > 7
+	ASSERT_EQ(skel->bss->a[7], 8, "arg8");
+#endif
+
+	fclose(devnull);
+cleanup:
+	test_uprobe_autoattach__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
new file mode 100644
index 000000000000..2ee17ef1dae2
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uprobe_multi_test.c
@@ -0,0 +1,1376 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <unistd.h>
+#include <pthread.h>
+#include <test_progs.h>
+#include "uprobe_multi.skel.h"
+#include "uprobe_multi_bench.skel.h"
+#include "uprobe_multi_usdt.skel.h"
+#include "uprobe_multi_consumers.skel.h"
+#include "uprobe_multi_pid_filter.skel.h"
+#include "uprobe_multi_session.skel.h"
+#include "uprobe_multi_session_single.skel.h"
+#include "uprobe_multi_session_cookie.skel.h"
+#include "uprobe_multi_session_recursive.skel.h"
+#include "uprobe_multi_verifier.skel.h"
+#include "bpf/libbpf_internal.h"
+#include "testing_helpers.h"
+#include "../sdt.h"
+
+static char test_data[] = "test_data";
+
+noinline void uprobe_multi_func_1(void)
+{
+	asm volatile ("");
+}
+
+noinline void uprobe_multi_func_2(void)
+{
+	asm volatile ("");
+}
+
+noinline void uprobe_multi_func_3(void)
+{
+	asm volatile ("");
+}
+
+noinline void usdt_trigger(void)
+{
+	STAP_PROBE(test, pid_filter_usdt);
+}
+
+noinline void uprobe_session_recursive(int i)
+{
+	if (i)
+		uprobe_session_recursive(i - 1);
+}
+
+struct child {
+	int go[2];
+	int c2p[2]; /* child -> parent channel */
+	int pid;
+	int tid;
+	pthread_t thread;
+	char stack[65536];
+};
+
+static void release_child(struct child *child)
+{
+	int child_status;
+
+	if (!child)
+		return;
+	close(child->go[1]);
+	close(child->go[0]);
+	if (child->thread)
+		pthread_join(child->thread, NULL);
+	close(child->c2p[0]);
+	close(child->c2p[1]);
+	if (child->pid > 0)
+		waitpid(child->pid, &child_status, 0);
+}
+
+static void kick_child(struct child *child)
+{
+	char c = 1;
+
+	if (child) {
+		write(child->go[1], &c, 1);
+		release_child(child);
+	}
+	fflush(NULL);
+}
+
+static int child_func(void *arg)
+{
+	struct child *child = arg;
+	int err, c;
+
+	close(child->go[1]);
+
+	/* wait for parent's kick */
+	err = read(child->go[0], &c, 1);
+	if (err != 1)
+		exit(err);
+
+	uprobe_multi_func_1();
+	uprobe_multi_func_2();
+	uprobe_multi_func_3();
+	usdt_trigger();
+
+	exit(errno);
+}
+
+static int spawn_child_flag(struct child *child, bool clone_vm)
+{
+	/* pipe to notify child to execute the trigger functions */
+	if (pipe(child->go))
+		return -1;
+
+	if (clone_vm) {
+		child->pid = child->tid = clone(child_func, child->stack + sizeof(child->stack)/2,
+						CLONE_VM|SIGCHLD, child);
+	} else {
+		child->pid = child->tid = fork();
+	}
+	if (child->pid < 0) {
+		release_child(child);
+		errno = EINVAL;
+		return -1;
+	}
+
+	/* fork-ed child */
+	if (!clone_vm && child->pid == 0)
+		child_func(child);
+
+	return 0;
+}
+
+static int spawn_child(struct child *child)
+{
+	return spawn_child_flag(child, false);
+}
+
+static void *child_thread(void *ctx)
+{
+	struct child *child = ctx;
+	int c = 0, err;
+
+	child->tid = sys_gettid();
+
+	/* let parent know we are ready */
+	err = write(child->c2p[1], &c, 1);
+	if (err != 1)
+		pthread_exit(&err);
+
+	/* wait for parent's kick */
+	err = read(child->go[0], &c, 1);
+	if (err != 1)
+		pthread_exit(&err);
+
+	uprobe_multi_func_1();
+	uprobe_multi_func_2();
+	uprobe_multi_func_3();
+	usdt_trigger();
+
+	err = 0;
+	pthread_exit(&err);
+}
+
+static int spawn_thread(struct child *child)
+{
+	int c, err;
+
+	/* pipe to notify child to execute the trigger functions */
+	if (pipe(child->go))
+		return -1;
+	/* pipe to notify parent that child thread is ready */
+	if (pipe(child->c2p)) {
+		close(child->go[0]);
+		close(child->go[1]);
+		return -1;
+	}
+
+	child->pid = getpid();
+
+	err = pthread_create(&child->thread, NULL, child_thread, child);
+	if (err) {
+		err = -errno;
+		close(child->go[0]);
+		close(child->go[1]);
+		close(child->c2p[0]);
+		close(child->c2p[1]);
+		errno = -err;
+		return -1;
+	}
+
+	err = read(child->c2p[0], &c, 1);
+	if (!ASSERT_EQ(err, 1, "child_thread_ready"))
+		return -1;
+
+	return 0;
+}
+
+static void uprobe_multi_test_run(struct uprobe_multi *skel, struct child *child)
+{
+	skel->bss->uprobe_multi_func_1_addr = (__u64) uprobe_multi_func_1;
+	skel->bss->uprobe_multi_func_2_addr = (__u64) uprobe_multi_func_2;
+	skel->bss->uprobe_multi_func_3_addr = (__u64) uprobe_multi_func_3;
+
+	skel->bss->user_ptr = test_data;
+
+	/*
+	 * Disable pid check in bpf program if we are pid filter test,
+	 * because the probe should be executed only by child->pid
+	 * passed at the probe attach.
+	 */
+	skel->bss->pid = child ? 0 : getpid();
+	skel->bss->expect_pid = child ? child->pid : 0;
+
+	/* trigger all probes, if we are testing child *process*, just to make
+	 * sure that PID filtering doesn't let through activations from wrong
+	 * PIDs; when we test child *thread*, we don't want to do this to
+	 * avoid double counting number of triggering events
+	 */
+	if (!child || !child->thread) {
+		uprobe_multi_func_1();
+		uprobe_multi_func_2();
+		uprobe_multi_func_3();
+		usdt_trigger();
+	}
+
+	if (child)
+		kick_child(child);
+
+	/*
+	 * There are 2 entry and 2 exit probe called for each uprobe_multi_func_[123]
+	 * function and each sleepable probe (6) increments uprobe_multi_sleep_result.
+	 */
+	ASSERT_EQ(skel->bss->uprobe_multi_func_1_result, 2, "uprobe_multi_func_1_result");
+	ASSERT_EQ(skel->bss->uprobe_multi_func_2_result, 2, "uprobe_multi_func_2_result");
+	ASSERT_EQ(skel->bss->uprobe_multi_func_3_result, 2, "uprobe_multi_func_3_result");
+
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_1_result, 2, "uretprobe_multi_func_1_result");
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_2_result, 2, "uretprobe_multi_func_2_result");
+	ASSERT_EQ(skel->bss->uretprobe_multi_func_3_result, 2, "uretprobe_multi_func_3_result");
+
+	ASSERT_EQ(skel->bss->uprobe_multi_sleep_result, 6, "uprobe_multi_sleep_result");
+
+	ASSERT_FALSE(skel->bss->bad_pid_seen, "bad_pid_seen");
+
+	if (child) {
+		ASSERT_EQ(skel->bss->child_pid, child->pid, "uprobe_multi_child_pid");
+		ASSERT_EQ(skel->bss->child_tid, child->tid, "uprobe_multi_child_tid");
+	}
+}
+
+static void test_skel_api(void)
+{
+	struct uprobe_multi *skel = NULL;
+	int err;
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+		goto cleanup;
+
+	err = uprobe_multi__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi__attach"))
+		goto cleanup;
+
+	uprobe_multi_test_run(skel, NULL);
+
+cleanup:
+	uprobe_multi__destroy(skel);
+}
+
+static void
+__test_attach_api(const char *binary, const char *pattern, struct bpf_uprobe_multi_opts *opts,
+		  struct child *child)
+{
+	pid_t pid = child ? child->pid : -1;
+	struct uprobe_multi *skel = NULL;
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+		goto cleanup;
+
+	opts->retprobe = false;
+	skel->links.uprobe = bpf_program__attach_uprobe_multi(skel->progs.uprobe, pid,
+							      binary, pattern, opts);
+	if (!ASSERT_OK_PTR(skel->links.uprobe, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	opts->retprobe = true;
+	skel->links.uretprobe = bpf_program__attach_uprobe_multi(skel->progs.uretprobe, pid,
+								 binary, pattern, opts);
+	if (!ASSERT_OK_PTR(skel->links.uretprobe, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	opts->retprobe = false;
+	skel->links.uprobe_sleep = bpf_program__attach_uprobe_multi(skel->progs.uprobe_sleep, pid,
+								    binary, pattern, opts);
+	if (!ASSERT_OK_PTR(skel->links.uprobe_sleep, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	opts->retprobe = true;
+	skel->links.uretprobe_sleep = bpf_program__attach_uprobe_multi(skel->progs.uretprobe_sleep,
+								       pid, binary, pattern, opts);
+	if (!ASSERT_OK_PTR(skel->links.uretprobe_sleep, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	opts->retprobe = false;
+	skel->links.uprobe_extra = bpf_program__attach_uprobe_multi(skel->progs.uprobe_extra, -1,
+								    binary, pattern, opts);
+	if (!ASSERT_OK_PTR(skel->links.uprobe_extra, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	/* Attach (uprobe-backed) USDTs */
+	skel->links.usdt_pid = bpf_program__attach_usdt(skel->progs.usdt_pid, pid, binary,
+							"test", "pid_filter_usdt", NULL);
+	if (!ASSERT_OK_PTR(skel->links.usdt_pid, "attach_usdt_pid"))
+		goto cleanup;
+
+	skel->links.usdt_extra = bpf_program__attach_usdt(skel->progs.usdt_extra, -1, binary,
+							  "test", "pid_filter_usdt", NULL);
+	if (!ASSERT_OK_PTR(skel->links.usdt_extra, "attach_usdt_extra"))
+		goto cleanup;
+
+	uprobe_multi_test_run(skel, child);
+
+	ASSERT_FALSE(skel->bss->bad_pid_seen_usdt, "bad_pid_seen_usdt");
+	if (child) {
+		ASSERT_EQ(skel->bss->child_pid_usdt, child->pid, "usdt_multi_child_pid");
+		ASSERT_EQ(skel->bss->child_tid_usdt, child->tid, "usdt_multi_child_tid");
+	}
+cleanup:
+	uprobe_multi__destroy(skel);
+}
+
+static void
+test_attach_api(const char *binary, const char *pattern, struct bpf_uprobe_multi_opts *opts)
+{
+	static struct child child;
+
+	/* no pid filter */
+	__test_attach_api(binary, pattern, opts, NULL);
+
+	/* pid filter */
+	if (!ASSERT_OK(spawn_child(&child), "spawn_child"))
+		return;
+
+	__test_attach_api(binary, pattern, opts, &child);
+
+	/* pid filter (thread) */
+	if (!ASSERT_OK(spawn_thread(&child), "spawn_thread"))
+		return;
+
+	__test_attach_api(binary, pattern, opts, &child);
+}
+
+static void test_attach_api_pattern(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+
+	test_attach_api("/proc/self/exe", "uprobe_multi_func_*", &opts);
+	test_attach_api("/proc/self/exe", "uprobe_multi_func_?", &opts);
+}
+
+static void test_attach_api_syms(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+	const char *syms[3] = {
+		"uprobe_multi_func_1",
+		"uprobe_multi_func_2",
+		"uprobe_multi_func_3",
+	};
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+	test_attach_api("/proc/self/exe", NULL, &opts);
+}
+
+static void test_attach_api_fails(void)
+{
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	const char *path = "/proc/self/exe";
+	struct uprobe_multi *skel = NULL;
+	int prog_fd, link_fd = -1;
+	unsigned long offset = 0;
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+		goto cleanup;
+
+	prog_fd = bpf_program__fd(skel->progs.uprobe_extra);
+
+	/* abnormal cnt */
+	opts.uprobe_multi.path = path;
+	opts.uprobe_multi.offsets = &offset;
+	opts.uprobe_multi.cnt = INT_MAX;
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -E2BIG, "big cnt"))
+		goto cleanup;
+
+	/* cnt is 0 */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EINVAL, "cnt_is_zero"))
+		goto cleanup;
+
+	/* negative offset */
+	offset = -1;
+	opts.uprobe_multi.path = path;
+	opts.uprobe_multi.offsets = (unsigned long *) &offset;
+	opts.uprobe_multi.cnt = 1;
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EINVAL, "offset_is_negative"))
+		goto cleanup;
+
+	/* offsets is NULL */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EINVAL, "offsets_is_null"))
+		goto cleanup;
+
+	/* wrong offsets pointer */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.offsets = (unsigned long *) 1,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EFAULT, "offsets_is_wrong"))
+		goto cleanup;
+
+	/* path is NULL */
+	offset = 1;
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EINVAL, "path_is_null"))
+		goto cleanup;
+
+	/* wrong path pointer  */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = (const char *) 1,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EFAULT, "path_is_wrong"))
+		goto cleanup;
+
+	/* wrong path type */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = "/",
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EBADF, "path_is_wrong_type"))
+		goto cleanup;
+
+	/* wrong cookies pointer */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cookies = (__u64 *) 1ULL,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EFAULT, "cookies_is_wrong"))
+		goto cleanup;
+
+	/* wrong ref_ctr_offsets pointer */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cookies = (__u64 *) &offset,
+		.uprobe_multi.ref_ctr_offsets = (unsigned long *) 1,
+		.uprobe_multi.cnt = 1,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EFAULT, "ref_ctr_offsets_is_wrong"))
+		goto cleanup;
+
+	/* wrong flags */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.flags = 1 << 31,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	if (!ASSERT_EQ(link_fd, -EINVAL, "wrong_flags"))
+		goto cleanup;
+
+	/* wrong pid */
+	LIBBPF_OPTS_RESET(opts,
+		.uprobe_multi.path = path,
+		.uprobe_multi.offsets = (unsigned long *) &offset,
+		.uprobe_multi.cnt = 1,
+		.uprobe_multi.pid = -2,
+	);
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		goto cleanup;
+	ASSERT_EQ(link_fd, -EINVAL, "pid_is_wrong");
+
+cleanup:
+	if (link_fd >= 0)
+		close(link_fd);
+	uprobe_multi__destroy(skel);
+}
+
+#ifdef __x86_64__
+noinline void uprobe_multi_error_func(void)
+{
+	/*
+	 * If --fcf-protection=branch is enabled the gcc generates endbr as
+	 * first instruction, so marking the exact address of int3 with the
+	 * symbol to be used in the attach_uprobe_fail_trap test below.
+	 */
+	asm volatile (
+		".globl uprobe_multi_error_func_int3;	\n"
+		"uprobe_multi_error_func_int3:		\n"
+		"int3					\n"
+	);
+}
+
+/*
+ * Attaching uprobe on uprobe_multi_error_func results in error
+ * because it already starts with int3 instruction.
+ */
+static void attach_uprobe_fail_trap(struct uprobe_multi *skel)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+	const char *syms[4] = {
+		"uprobe_multi_func_1",
+		"uprobe_multi_func_2",
+		"uprobe_multi_func_3",
+		"uprobe_multi_error_func_int3",
+	};
+
+	opts.syms = syms;
+	opts.cnt = ARRAY_SIZE(syms);
+
+	skel->links.uprobe = bpf_program__attach_uprobe_multi(skel->progs.uprobe, -1,
+							      "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_ERR_PTR(skel->links.uprobe, "bpf_program__attach_uprobe_multi")) {
+		bpf_link__destroy(skel->links.uprobe);
+		skel->links.uprobe = NULL;
+	}
+}
+#else
+static void attach_uprobe_fail_trap(struct uprobe_multi *skel) { }
+#endif
+
+short sema_1 __used, sema_2 __used;
+
+static void attach_uprobe_fail_refctr(struct uprobe_multi *skel)
+{
+	unsigned long *tmp_offsets = NULL, *tmp_ref_ctr_offsets = NULL;
+	unsigned long offsets[3], ref_ctr_offsets[3];
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	const char *path = "/proc/self/exe";
+	const char *syms[3] = {
+		"uprobe_multi_func_1",
+		"uprobe_multi_func_2",
+	};
+	const char *sema[3] = {
+		"sema_1",
+		"sema_2",
+	};
+	int prog_fd, link_fd, err;
+
+	prog_fd = bpf_program__fd(skel->progs.uprobe_extra);
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 2, (const char **) &syms,
+				       &tmp_offsets, STT_FUNC);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_func"))
+		return;
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 2, (const char **) &sema,
+				       &tmp_ref_ctr_offsets, STT_OBJECT);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_sema"))
+		goto cleanup;
+
+	/*
+	 * We attach to 3 uprobes on 2 functions, so 2 uprobes share single function,
+	 * but with different ref_ctr_offset which is not allowed and results in fail.
+	 */
+	offsets[0] = tmp_offsets[0]; /* uprobe_multi_func_1 */
+	offsets[1] = tmp_offsets[1]; /* uprobe_multi_func_2 */
+	offsets[2] = tmp_offsets[1]; /* uprobe_multi_func_2 */
+
+	ref_ctr_offsets[0] = tmp_ref_ctr_offsets[0]; /* sema_1 */
+	ref_ctr_offsets[1] = tmp_ref_ctr_offsets[1]; /* sema_2 */
+	ref_ctr_offsets[2] = tmp_ref_ctr_offsets[0]; /* sema_1, error */
+
+	opts.uprobe_multi.path = path;
+	opts.uprobe_multi.offsets = (const unsigned long *) &offsets;
+	opts.uprobe_multi.ref_ctr_offsets = (const unsigned long *) &ref_ctr_offsets;
+	opts.uprobe_multi.cnt = 3;
+
+	link_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_ERR(link_fd, "link_fd"))
+		close(link_fd);
+
+cleanup:
+	free(tmp_ref_ctr_offsets);
+	free(tmp_offsets);
+}
+
+static void test_attach_uprobe_fails(void)
+{
+	struct uprobe_multi *skel = NULL;
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+		return;
+
+	/* attach fails due to adding uprobe on trap instruction, x86_64 only */
+	attach_uprobe_fail_trap(skel);
+
+	/* attach fail due to wrong ref_ctr_offs on one of the uprobes */
+	attach_uprobe_fail_refctr(skel);
+
+	uprobe_multi__destroy(skel);
+}
+
+static void __test_link_api(struct child *child)
+{
+	int prog_fd, link1_fd = -1, link2_fd = -1, link3_fd = -1, link4_fd = -1;
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+	const char *path = "/proc/self/exe";
+	struct uprobe_multi *skel = NULL;
+	unsigned long *offsets = NULL;
+	const char *syms[3] = {
+		"uprobe_multi_func_1",
+		"uprobe_multi_func_2",
+		"uprobe_multi_func_3",
+	};
+	int link_extra_fd = -1;
+	int err;
+
+	err = elf_resolve_syms_offsets(path, 3, syms, (unsigned long **) &offsets, STT_FUNC);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets"))
+		return;
+
+	opts.uprobe_multi.path = path;
+	opts.uprobe_multi.offsets = offsets;
+	opts.uprobe_multi.cnt = ARRAY_SIZE(syms);
+	opts.uprobe_multi.pid = child ? child->pid : 0;
+
+	skel = uprobe_multi__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open_and_load"))
+		goto cleanup;
+
+	opts.kprobe_multi.flags = 0;
+	prog_fd = bpf_program__fd(skel->progs.uprobe);
+	link1_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link1_fd, 0, "link1_fd"))
+		goto cleanup;
+
+	opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
+	prog_fd = bpf_program__fd(skel->progs.uretprobe);
+	link2_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link2_fd, 0, "link2_fd"))
+		goto cleanup;
+
+	opts.kprobe_multi.flags = 0;
+	prog_fd = bpf_program__fd(skel->progs.uprobe_sleep);
+	link3_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link3_fd, 0, "link3_fd"))
+		goto cleanup;
+
+	opts.kprobe_multi.flags = BPF_F_UPROBE_MULTI_RETURN;
+	prog_fd = bpf_program__fd(skel->progs.uretprobe_sleep);
+	link4_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link4_fd, 0, "link4_fd"))
+		goto cleanup;
+
+	opts.kprobe_multi.flags = 0;
+	opts.uprobe_multi.pid = 0;
+	prog_fd = bpf_program__fd(skel->progs.uprobe_extra);
+	link_extra_fd = bpf_link_create(prog_fd, 0, BPF_TRACE_UPROBE_MULTI, &opts);
+	if (!ASSERT_GE(link_extra_fd, 0, "link_extra_fd"))
+		goto cleanup;
+
+	uprobe_multi_test_run(skel, child);
+
+cleanup:
+	if (link1_fd >= 0)
+		close(link1_fd);
+	if (link2_fd >= 0)
+		close(link2_fd);
+	if (link3_fd >= 0)
+		close(link3_fd);
+	if (link4_fd >= 0)
+		close(link4_fd);
+	if (link_extra_fd >= 0)
+		close(link_extra_fd);
+
+	uprobe_multi__destroy(skel);
+	free(offsets);
+}
+
+static void test_link_api(void)
+{
+	static struct child child;
+
+	/* no pid filter */
+	__test_link_api(NULL);
+
+	/* pid filter */
+	if (!ASSERT_OK(spawn_child(&child), "spawn_child"))
+		return;
+
+	__test_link_api(&child);
+
+	/* pid filter (thread) */
+	if (!ASSERT_OK(spawn_thread(&child), "spawn_thread"))
+		return;
+
+	__test_link_api(&child);
+}
+
+static struct bpf_program *
+get_program(struct uprobe_multi_consumers *skel, int prog)
+{
+	switch (prog) {
+	case 0:
+		return skel->progs.uprobe_0;
+	case 1:
+		return skel->progs.uprobe_1;
+	case 2:
+		return skel->progs.uprobe_2;
+	case 3:
+		return skel->progs.uprobe_3;
+	default:
+		ASSERT_FAIL("get_program");
+		return NULL;
+	}
+}
+
+static struct bpf_link **
+get_link(struct uprobe_multi_consumers *skel, int link)
+{
+	switch (link) {
+	case 0:
+		return &skel->links.uprobe_0;
+	case 1:
+		return &skel->links.uprobe_1;
+	case 2:
+		return &skel->links.uprobe_2;
+	case 3:
+		return &skel->links.uprobe_3;
+	default:
+		ASSERT_FAIL("get_link");
+		return NULL;
+	}
+}
+
+static int uprobe_attach(struct uprobe_multi_consumers *skel, int idx, unsigned long offset)
+{
+	struct bpf_program *prog = get_program(skel, idx);
+	struct bpf_link **link = get_link(skel, idx);
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+
+	if (!prog || !link)
+		return -1;
+
+	opts.offsets = &offset;
+	opts.cnt = 1;
+
+	/*
+	 * bit/prog: 0 uprobe entry
+	 * bit/prog: 1 uprobe return
+	 * bit/prog: 2 uprobe session without return
+	 * bit/prog: 3 uprobe session with return
+	 */
+	opts.retprobe = idx == 1;
+	opts.session  = idx == 2 || idx == 3;
+
+	*link = bpf_program__attach_uprobe_multi(prog, 0, "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(*link, "bpf_program__attach_uprobe_multi"))
+		return -1;
+	return 0;
+}
+
+static void uprobe_detach(struct uprobe_multi_consumers *skel, int idx)
+{
+	struct bpf_link **link = get_link(skel, idx);
+
+	bpf_link__destroy(*link);
+	*link = NULL;
+}
+
+static bool test_bit(int bit, unsigned long val)
+{
+	return val & (1 << bit);
+}
+
+noinline int
+uprobe_consumer_test(struct uprobe_multi_consumers *skel,
+		     unsigned long before, unsigned long after,
+		     unsigned long offset)
+{
+	int idx;
+
+	/* detach uprobe for each unset programs in 'before' state ... */
+	for (idx = 0; idx < 4; idx++) {
+		if (test_bit(idx, before) && !test_bit(idx, after))
+			uprobe_detach(skel, idx);
+	}
+
+	/* ... and attach all new programs in 'after' state */
+	for (idx = 0; idx < 4; idx++) {
+		if (!test_bit(idx, before) && test_bit(idx, after)) {
+			if (!ASSERT_OK(uprobe_attach(skel, idx, offset), "uprobe_attach_after"))
+				return -1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * We generate 16 consumer_testX functions that will have uprobe installed on
+ * and will be called in separate threads. All function pointer are stored in
+ * "consumers" section and each thread will pick one function based on index.
+ */
+
+extern const void *__start_consumers;
+
+#define __CONSUMER_TEST(func) 							\
+noinline int func(struct uprobe_multi_consumers *skel, unsigned long before,	\
+		  unsigned long after, unsigned long offset)			\
+{										\
+	return uprobe_consumer_test(skel, before, after, offset);		\
+}										\
+void *__ ## func __used __attribute__((section("consumers"))) = (void *) func;
+
+#define CONSUMER_TEST(func) __CONSUMER_TEST(func)
+
+#define C1  CONSUMER_TEST(__PASTE(consumer_test, __COUNTER__))
+#define C4  C1 C1 C1 C1
+#define C16 C4 C4 C4 C4
+
+C16
+
+typedef int (*test_t)(struct uprobe_multi_consumers *, unsigned long,
+		      unsigned long, unsigned long);
+
+static int consumer_test(struct uprobe_multi_consumers *skel,
+			 unsigned long before, unsigned long after,
+			 test_t test, unsigned long offset)
+{
+	int err, idx, ret = -1;
+
+	printf("consumer_test before %lu after %lu\n", before, after);
+
+	/* 'before' is each, we attach uprobe for every set idx */
+	for (idx = 0; idx < 4; idx++) {
+		if (test_bit(idx, before)) {
+			if (!ASSERT_OK(uprobe_attach(skel, idx, offset), "uprobe_attach_before"))
+				goto cleanup;
+		}
+	}
+
+	err = test(skel, before, after, offset);
+	if (!ASSERT_EQ(err, 0, "uprobe_consumer_test"))
+		goto cleanup;
+
+	for (idx = 0; idx < 4; idx++) {
+		bool uret_stays, uret_survives;
+		const char *fmt = "BUG";
+		__u64 val = 0;
+
+		switch (idx) {
+		case 0:
+			/*
+			 * uprobe entry
+			 *   +1 if define in 'before'
+			 */
+			if (test_bit(idx, before))
+				val++;
+			fmt = "prog 0: uprobe";
+			break;
+		case 1:
+			/*
+			 * To trigger uretprobe consumer, the uretprobe under test either stayed from
+			 * before to after (uret_stays + test_bit) or uretprobe instance survived and
+			 * we have uretprobe active in after (uret_survives + test_bit)
+			 */
+			uret_stays = before & after & 0b0110;
+			uret_survives = ((before & 0b0110) && (after & 0b0110) && (before & 0b1001));
+
+			if ((uret_stays || uret_survives) && test_bit(idx, after))
+				val++;
+			fmt = "prog 1: uretprobe";
+			break;
+		case 2:
+			/*
+			 * session with return
+			 *  +1 if defined in 'before'
+			 *  +1 if defined in 'after'
+			 */
+			if (test_bit(idx, before)) {
+				val++;
+				if (test_bit(idx, after))
+					val++;
+			}
+			fmt = "prog 2: session with return";
+			break;
+		case 3:
+			/*
+			 * session without return
+			 *   +1 if defined in 'before'
+			 */
+			if (test_bit(idx, before))
+				val++;
+			fmt = "prog 3: session with NO return";
+			break;
+		}
+
+		if (!ASSERT_EQ(skel->bss->uprobe_result[idx], val, fmt))
+			goto cleanup;
+		skel->bss->uprobe_result[idx] = 0;
+	}
+
+	ret = 0;
+
+cleanup:
+	for (idx = 0; idx < 4; idx++)
+		uprobe_detach(skel, idx);
+	return ret;
+}
+
+#define CONSUMER_MAX 16
+
+/*
+ * Each thread runs 1/16 of the load by running test for single
+ * 'before' number (based on thread index) and full scale of
+ * 'after' numbers.
+ */
+static void *consumer_thread(void *arg)
+{
+	unsigned long idx = (unsigned long) arg;
+	struct uprobe_multi_consumers *skel;
+	unsigned long offset;
+	const void *func;
+	int after;
+
+	skel = uprobe_multi_consumers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_consumers__open_and_load"))
+		return NULL;
+
+	func = *((&__start_consumers) + idx);
+
+	offset = get_uprobe_offset(func);
+	if (!ASSERT_GE(offset, 0, "uprobe_offset"))
+		goto out;
+
+	for (after = 0; after < CONSUMER_MAX; after++)
+		if (consumer_test(skel, idx, after, func, offset))
+			goto out;
+
+out:
+	uprobe_multi_consumers__destroy(skel);
+	return NULL;
+}
+
+
+static void test_consumers(void)
+{
+	pthread_t pt[CONSUMER_MAX];
+	unsigned long idx;
+	int err;
+
+	/*
+	 * The idea of this test is to try all possible combinations of
+	 * uprobes consumers attached on single function.
+	 *
+	 *  - 1 uprobe entry consumer
+	 *  - 1 uprobe exit consumer
+	 *  - 1 uprobe session with return
+	 *  - 1 uprobe session without return
+	 *
+	 * The test uses 4 uprobes attached on single function, but that
+	 * translates into single uprobe with 4 consumers in kernel.
+	 *
+	 * The before/after values present the state of attached consumers
+	 * before and after the probed function:
+	 *
+	 *  bit/prog 0 : uprobe entry
+	 *  bit/prog 1 : uprobe return
+	 *
+	 * For example for:
+	 *
+	 *   before = 0b01
+	 *   after  = 0b10
+	 *
+	 * it means that before we call 'uprobe_consumer_test' we attach
+	 * uprobes defined in 'before' value:
+	 *
+	 *   - bit/prog 1: uprobe entry
+	 *
+	 * uprobe_consumer_test is called and inside it we attach and detach
+	 * uprobes based on 'after' value:
+	 *
+	 *   - bit/prog 0: is detached
+	 *   - bit/prog 1: is attached
+	 *
+	 * uprobe_consumer_test returns and we check counters values increased
+	 * by bpf programs on each uprobe to match the expected count based on
+	 * before/after bits.
+	 */
+
+	for (idx = 0; idx < CONSUMER_MAX; idx++) {
+		err = pthread_create(&pt[idx], NULL, consumer_thread, (void *) idx);
+		if (!ASSERT_OK(err, "pthread_create"))
+			break;
+	}
+
+	while (idx)
+		pthread_join(pt[--idx], NULL);
+}
+
+static struct bpf_program *uprobe_multi_program(struct uprobe_multi_pid_filter *skel, int idx)
+{
+	switch (idx) {
+	case 0: return skel->progs.uprobe_multi_0;
+	case 1: return skel->progs.uprobe_multi_1;
+	case 2: return skel->progs.uprobe_multi_2;
+	}
+	return NULL;
+}
+
+#define TASKS 3
+
+static void run_pid_filter(struct uprobe_multi_pid_filter *skel, bool clone_vm, bool retprobe)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts, .retprobe = retprobe);
+	struct bpf_link *link[TASKS] = {};
+	struct child child[TASKS] = {};
+	int i;
+
+	memset(skel->bss->test, 0, sizeof(skel->bss->test));
+
+	for (i = 0; i < TASKS; i++) {
+		if (!ASSERT_OK(spawn_child_flag(&child[i], clone_vm), "spawn_child"))
+			goto cleanup;
+		skel->bss->pids[i] = child[i].pid;
+	}
+
+	for (i = 0; i < TASKS; i++) {
+		link[i] = bpf_program__attach_uprobe_multi(uprobe_multi_program(skel, i),
+							   child[i].pid, "/proc/self/exe",
+							   "uprobe_multi_func_1", &opts);
+		if (!ASSERT_OK_PTR(link[i], "bpf_program__attach_uprobe_multi"))
+			goto cleanup;
+	}
+
+	for (i = 0; i < TASKS; i++)
+		kick_child(&child[i]);
+
+	for (i = 0; i < TASKS; i++) {
+		ASSERT_EQ(skel->bss->test[i][0], 1, "pid");
+		ASSERT_EQ(skel->bss->test[i][1], 0, "unknown");
+	}
+
+cleanup:
+	for (i = 0; i < TASKS; i++)
+		bpf_link__destroy(link[i]);
+	for (i = 0; i < TASKS; i++)
+		release_child(&child[i]);
+}
+
+static void test_pid_filter_process(bool clone_vm)
+{
+	struct uprobe_multi_pid_filter *skel;
+
+	skel = uprobe_multi_pid_filter__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_pid_filter__open_and_load"))
+		return;
+
+	run_pid_filter(skel, clone_vm, false);
+	run_pid_filter(skel, clone_vm, true);
+
+	uprobe_multi_pid_filter__destroy(skel);
+}
+
+static void test_session_skel_api(void)
+{
+	struct uprobe_multi_session *skel = NULL;
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	struct bpf_link *link = NULL;
+	int err;
+
+	skel = uprobe_multi_session__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_session__open_and_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+	skel->bss->user_ptr = test_data;
+
+	err = uprobe_multi_session__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi_session__attach"))
+		goto cleanup;
+
+	/* trigger all probes */
+	skel->bss->uprobe_multi_func_1_addr = (__u64) uprobe_multi_func_1;
+	skel->bss->uprobe_multi_func_2_addr = (__u64) uprobe_multi_func_2;
+	skel->bss->uprobe_multi_func_3_addr = (__u64) uprobe_multi_func_3;
+
+	uprobe_multi_func_1();
+	uprobe_multi_func_2();
+	uprobe_multi_func_3();
+
+	/*
+	 * We expect 2 for uprobe_multi_func_2 because it runs both entry/return probe,
+	 * uprobe_multi_func_[13] run just the entry probe. All expected numbers are
+	 * doubled, because we run extra test for sleepable session.
+	 */
+	ASSERT_EQ(skel->bss->uprobe_session_result[0], 2, "uprobe_multi_func_1_result");
+	ASSERT_EQ(skel->bss->uprobe_session_result[1], 4, "uprobe_multi_func_2_result");
+	ASSERT_EQ(skel->bss->uprobe_session_result[2], 2, "uprobe_multi_func_3_result");
+
+	/* We expect increase in 3 entry and 1 return session calls -> 4 */
+	ASSERT_EQ(skel->bss->uprobe_multi_sleep_result, 4, "uprobe_multi_sleep_result");
+
+cleanup:
+	bpf_link__destroy(link);
+	uprobe_multi_session__destroy(skel);
+}
+
+static void test_session_single_skel_api(void)
+{
+	struct uprobe_multi_session_single *skel = NULL;
+	LIBBPF_OPTS(bpf_kprobe_multi_opts, opts);
+	int err;
+
+	skel = uprobe_multi_session_single__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_session_single__open_and_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+
+	err = uprobe_multi_session_single__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi_session_single__attach"))
+		goto cleanup;
+
+	uprobe_multi_func_1();
+
+	/*
+	 * We expect consumer 0 and 2 to trigger just entry handler (value 1)
+	 * and consumer 1 to hit both (value 2).
+	 */
+	ASSERT_EQ(skel->bss->uprobe_session_result[0], 1, "uprobe_session_result_0");
+	ASSERT_EQ(skel->bss->uprobe_session_result[1], 2, "uprobe_session_result_1");
+	ASSERT_EQ(skel->bss->uprobe_session_result[2], 1, "uprobe_session_result_2");
+
+cleanup:
+	uprobe_multi_session_single__destroy(skel);
+}
+
+static void test_session_cookie_skel_api(void)
+{
+	struct uprobe_multi_session_cookie *skel = NULL;
+	int err;
+
+	skel = uprobe_multi_session_cookie__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_session_cookie__open_and_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+
+	err = uprobe_multi_session_cookie__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi_session_cookie__attach"))
+		goto cleanup;
+
+	/* trigger all probes */
+	uprobe_multi_func_1();
+	uprobe_multi_func_2();
+	uprobe_multi_func_3();
+
+	ASSERT_EQ(skel->bss->test_uprobe_1_result, 1, "test_uprobe_1_result");
+	ASSERT_EQ(skel->bss->test_uprobe_2_result, 2, "test_uprobe_2_result");
+	ASSERT_EQ(skel->bss->test_uprobe_3_result, 3, "test_uprobe_3_result");
+
+cleanup:
+	uprobe_multi_session_cookie__destroy(skel);
+}
+
+static void test_session_recursive_skel_api(void)
+{
+	struct uprobe_multi_session_recursive *skel = NULL;
+	int i, err;
+
+	skel = uprobe_multi_session_recursive__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_session_recursive__open_and_load"))
+		goto cleanup;
+
+	skel->bss->pid = getpid();
+
+	err = uprobe_multi_session_recursive__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi_session_recursive__attach"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(skel->bss->test_uprobe_cookie_entry); i++)
+		skel->bss->test_uprobe_cookie_entry[i] = i + 1;
+
+	uprobe_session_recursive(5);
+
+	/*
+	 *                                         entry uprobe:
+	 * uprobe_session_recursive(5) {             *cookie = 1, return 0
+	 *   uprobe_session_recursive(4) {           *cookie = 2, return 1
+	 *     uprobe_session_recursive(3) {         *cookie = 3, return 0
+	 *       uprobe_session_recursive(2) {       *cookie = 4, return 1
+	 *         uprobe_session_recursive(1) {     *cookie = 5, return 0
+	 *           uprobe_session_recursive(0) {   *cookie = 6, return 1
+	 *                                          return uprobe:
+	 *           } i = 0                          not executed
+	 *         } i = 1                            test_uprobe_cookie_return[0] = 5
+	 *       } i = 2                              not executed
+	 *     } i = 3                                test_uprobe_cookie_return[1] = 3
+	 *   } i = 4                                  not executed
+	 * } i = 5                                    test_uprobe_cookie_return[2] = 1
+	 */
+
+	ASSERT_EQ(skel->bss->idx_entry, 6, "idx_entry");
+	ASSERT_EQ(skel->bss->idx_return, 3, "idx_return");
+
+	ASSERT_EQ(skel->bss->test_uprobe_cookie_return[0], 5, "test_uprobe_cookie_return[0]");
+	ASSERT_EQ(skel->bss->test_uprobe_cookie_return[1], 3, "test_uprobe_cookie_return[1]");
+	ASSERT_EQ(skel->bss->test_uprobe_cookie_return[2], 1, "test_uprobe_cookie_return[2]");
+
+cleanup:
+	uprobe_multi_session_recursive__destroy(skel);
+}
+
+static void test_bench_attach_uprobe(void)
+{
+	long attach_start_ns = 0, attach_end_ns = 0;
+	struct uprobe_multi_bench *skel = NULL;
+	long detach_start_ns, detach_end_ns;
+	double attach_delta, detach_delta;
+	int err;
+
+	skel = uprobe_multi_bench__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi_bench__open_and_load"))
+		goto cleanup;
+
+	attach_start_ns = get_time_ns();
+
+	err = uprobe_multi_bench__attach(skel);
+	if (!ASSERT_OK(err, "uprobe_multi_bench__attach"))
+		goto cleanup;
+
+	attach_end_ns = get_time_ns();
+
+	system("./uprobe_multi bench");
+
+	ASSERT_EQ(skel->bss->count, 50000, "uprobes_count");
+
+cleanup:
+	detach_start_ns = get_time_ns();
+	uprobe_multi_bench__destroy(skel);
+	detach_end_ns = get_time_ns();
+
+	attach_delta = (attach_end_ns - attach_start_ns) / 1000000000.0;
+	detach_delta = (detach_end_ns - detach_start_ns) / 1000000000.0;
+
+	printf("%s: attached in %7.3lfs\n", __func__, attach_delta);
+	printf("%s: detached in %7.3lfs\n", __func__, detach_delta);
+}
+
+static void test_bench_attach_usdt(void)
+{
+	long attach_start_ns = 0, attach_end_ns = 0;
+	struct uprobe_multi_usdt *skel = NULL;
+	long detach_start_ns, detach_end_ns;
+	double attach_delta, detach_delta;
+
+	skel = uprobe_multi_usdt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_multi__open"))
+		goto cleanup;
+
+	attach_start_ns = get_time_ns();
+
+	skel->links.usdt0 = bpf_program__attach_usdt(skel->progs.usdt0, -1, "./uprobe_multi",
+						     "test", "usdt", NULL);
+	if (!ASSERT_OK_PTR(skel->links.usdt0, "bpf_program__attach_usdt"))
+		goto cleanup;
+
+	attach_end_ns = get_time_ns();
+
+	system("./uprobe_multi usdt");
+
+	ASSERT_EQ(skel->bss->count, 50000, "usdt_count");
+
+cleanup:
+	detach_start_ns = get_time_ns();
+	uprobe_multi_usdt__destroy(skel);
+	detach_end_ns = get_time_ns();
+
+	attach_delta = (attach_end_ns - attach_start_ns) / 1000000000.0;
+	detach_delta = (detach_end_ns - detach_start_ns) / 1000000000.0;
+
+	printf("%s: attached in %7.3lfs\n", __func__, attach_delta);
+	printf("%s: detached in %7.3lfs\n", __func__, detach_delta);
+}
+
+void test_uprobe_multi_test(void)
+{
+	if (test__start_subtest("skel_api"))
+		test_skel_api();
+	if (test__start_subtest("attach_api_pattern"))
+		test_attach_api_pattern();
+	if (test__start_subtest("attach_api_syms"))
+		test_attach_api_syms();
+	if (test__start_subtest("link_api"))
+		test_link_api();
+	if (test__start_subtest("bench_uprobe"))
+		test_bench_attach_uprobe();
+	if (test__start_subtest("bench_usdt"))
+		test_bench_attach_usdt();
+	if (test__start_subtest("attach_api_fails"))
+		test_attach_api_fails();
+	if (test__start_subtest("attach_uprobe_fails"))
+		test_attach_uprobe_fails();
+	if (test__start_subtest("consumers"))
+		test_consumers();
+	if (test__start_subtest("filter_fork"))
+		test_pid_filter_process(false);
+	if (test__start_subtest("filter_clone_vm"))
+		test_pid_filter_process(true);
+	if (test__start_subtest("session"))
+		test_session_skel_api();
+	if (test__start_subtest("session_single"))
+		test_session_single_skel_api();
+	if (test__start_subtest("session_cookie"))
+		test_session_cookie_skel_api();
+	if (test__start_subtest("session_cookie_recursive"))
+		test_session_recursive_skel_api();
+	RUN_TESTS(uprobe_multi_verifier);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c b/tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c
new file mode 100644
index 000000000000..955a37751b52
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uprobe_syscall.c
@@ -0,0 +1,803 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+
+#ifdef __x86_64__
+
+#include <unistd.h>
+#include <asm/ptrace.h>
+#include <linux/compiler.h>
+#include <linux/stringify.h>
+#include <linux/kernel.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <sys/prctl.h>
+#include <asm/prctl.h>
+#include "uprobe_syscall.skel.h"
+#include "uprobe_syscall_executed.skel.h"
+#include "bpf/libbpf_internal.h"
+
+#define USDT_NOP .byte 0x0f, 0x1f, 0x44, 0x00, 0x00
+#include "usdt.h"
+
+#pragma GCC diagnostic ignored "-Wattributes"
+
+__attribute__((aligned(16)))
+__nocf_check __weak __naked unsigned long uprobe_regs_trigger(void)
+{
+	asm volatile (
+		".byte 0x0f, 0x1f, 0x44, 0x00, 0x00\n" /* nop5 */
+		"movq $0xdeadbeef, %rax\n"
+		"ret\n"
+	);
+}
+
+__naked void uprobe_regs(struct pt_regs *before, struct pt_regs *after)
+{
+	asm volatile (
+		"movq %r15,   0(%rdi)\n"
+		"movq %r14,   8(%rdi)\n"
+		"movq %r13,  16(%rdi)\n"
+		"movq %r12,  24(%rdi)\n"
+		"movq %rbp,  32(%rdi)\n"
+		"movq %rbx,  40(%rdi)\n"
+		"movq %r11,  48(%rdi)\n"
+		"movq %r10,  56(%rdi)\n"
+		"movq  %r9,  64(%rdi)\n"
+		"movq  %r8,  72(%rdi)\n"
+		"movq %rax,  80(%rdi)\n"
+		"movq %rcx,  88(%rdi)\n"
+		"movq %rdx,  96(%rdi)\n"
+		"movq %rsi, 104(%rdi)\n"
+		"movq %rdi, 112(%rdi)\n"
+		"movq   $0, 120(%rdi)\n" /* orig_rax */
+		"movq   $0, 128(%rdi)\n" /* rip      */
+		"movq   $0, 136(%rdi)\n" /* cs       */
+		"pushq %rax\n"
+		"pushf\n"
+		"pop %rax\n"
+		"movq %rax, 144(%rdi)\n" /* eflags   */
+		"pop %rax\n"
+		"movq %rsp, 152(%rdi)\n" /* rsp      */
+		"movq   $0, 160(%rdi)\n" /* ss       */
+
+		/* save 2nd argument */
+		"pushq %rsi\n"
+		"call uprobe_regs_trigger\n"
+
+		/* save  return value and load 2nd argument pointer to rax */
+		"pushq %rax\n"
+		"movq 8(%rsp), %rax\n"
+
+		"movq %r15,   0(%rax)\n"
+		"movq %r14,   8(%rax)\n"
+		"movq %r13,  16(%rax)\n"
+		"movq %r12,  24(%rax)\n"
+		"movq %rbp,  32(%rax)\n"
+		"movq %rbx,  40(%rax)\n"
+		"movq %r11,  48(%rax)\n"
+		"movq %r10,  56(%rax)\n"
+		"movq  %r9,  64(%rax)\n"
+		"movq  %r8,  72(%rax)\n"
+		"movq %rcx,  88(%rax)\n"
+		"movq %rdx,  96(%rax)\n"
+		"movq %rsi, 104(%rax)\n"
+		"movq %rdi, 112(%rax)\n"
+		"movq   $0, 120(%rax)\n" /* orig_rax */
+		"movq   $0, 128(%rax)\n" /* rip      */
+		"movq   $0, 136(%rax)\n" /* cs       */
+
+		/* restore return value and 2nd argument */
+		"pop %rax\n"
+		"pop %rsi\n"
+
+		"movq %rax,  80(%rsi)\n"
+
+		"pushf\n"
+		"pop %rax\n"
+
+		"movq %rax, 144(%rsi)\n" /* eflags   */
+		"movq %rsp, 152(%rsi)\n" /* rsp      */
+		"movq   $0, 160(%rsi)\n" /* ss       */
+		"ret\n"
+);
+}
+
+static void test_uprobe_regs_equal(bool retprobe)
+{
+	LIBBPF_OPTS(bpf_uprobe_opts, opts,
+		.retprobe = retprobe,
+	);
+	struct uprobe_syscall *skel = NULL;
+	struct pt_regs before = {}, after = {};
+	unsigned long *pb = (unsigned long *) &before;
+	unsigned long *pa = (unsigned long *) &after;
+	unsigned long *pp;
+	unsigned long offset;
+	unsigned int i, cnt;
+
+	offset = get_uprobe_offset(&uprobe_regs_trigger);
+	if (!ASSERT_GE(offset, 0, "get_uprobe_offset"))
+		return;
+
+	skel = uprobe_syscall__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall__open_and_load"))
+		goto cleanup;
+
+	skel->links.probe = bpf_program__attach_uprobe_opts(skel->progs.probe,
+				0, "/proc/self/exe", offset, &opts);
+	if (!ASSERT_OK_PTR(skel->links.probe, "bpf_program__attach_uprobe_opts"))
+		goto cleanup;
+
+	/* make sure uprobe gets optimized */
+	if (!retprobe)
+		uprobe_regs_trigger();
+
+	uprobe_regs(&before, &after);
+
+	pp = (unsigned long *) &skel->bss->regs;
+	cnt = sizeof(before)/sizeof(*pb);
+
+	for (i = 0; i < cnt; i++) {
+		unsigned int offset = i * sizeof(unsigned long);
+
+		/*
+		 * Check register before and after uprobe_regs_trigger call
+		 * that triggers the uretprobe.
+		 */
+		switch (offset) {
+		case offsetof(struct pt_regs, rax):
+			ASSERT_EQ(pa[i], 0xdeadbeef, "return value");
+			break;
+		default:
+			if (!ASSERT_EQ(pb[i], pa[i], "register before-after value check"))
+				fprintf(stdout, "failed register offset %u\n", offset);
+		}
+
+		/*
+		 * Check register seen from bpf program and register after
+		 * uprobe_regs_trigger call (with rax exception, check below).
+		 */
+		switch (offset) {
+		/*
+		 * These values will be different (not set in uretprobe_regs),
+		 * we don't care.
+		 */
+		case offsetof(struct pt_regs, orig_rax):
+		case offsetof(struct pt_regs, rip):
+		case offsetof(struct pt_regs, cs):
+		case offsetof(struct pt_regs, rsp):
+		case offsetof(struct pt_regs, ss):
+			break;
+		/*
+		 * uprobe does not see return value in rax, it needs to see the
+		 * original (before) rax value
+		 */
+		case offsetof(struct pt_regs, rax):
+			if (!retprobe) {
+				ASSERT_EQ(pp[i], pb[i], "uprobe rax prog-before value check");
+				break;
+			}
+		default:
+			if (!ASSERT_EQ(pp[i], pa[i], "register prog-after value check"))
+				fprintf(stdout, "failed register offset %u\n", offset);
+		}
+	}
+
+cleanup:
+	uprobe_syscall__destroy(skel);
+}
+
+#define BPF_TESTMOD_UPROBE_TEST_FILE "/sys/kernel/bpf_testmod_uprobe"
+
+static int write_bpf_testmod_uprobe(unsigned long offset)
+{
+	size_t n, ret;
+	char buf[30];
+	int fd;
+
+	n = sprintf(buf, "%lu", offset);
+
+	fd = open(BPF_TESTMOD_UPROBE_TEST_FILE, O_WRONLY);
+	if (fd < 0)
+		return -errno;
+
+	ret = write(fd, buf, n);
+	close(fd);
+	return ret != n ? (int) ret : 0;
+}
+
+static void test_regs_change(void)
+{
+	struct pt_regs before = {}, after = {};
+	unsigned long *pb = (unsigned long *) &before;
+	unsigned long *pa = (unsigned long *) &after;
+	unsigned long cnt = sizeof(before)/sizeof(*pb);
+	unsigned int i, err, offset;
+
+	offset = get_uprobe_offset(uprobe_regs_trigger);
+
+	err = write_bpf_testmod_uprobe(offset);
+	if (!ASSERT_OK(err, "register_uprobe"))
+		return;
+
+	/* make sure uprobe gets optimized */
+	uprobe_regs_trigger();
+
+	uprobe_regs(&before, &after);
+
+	err = write_bpf_testmod_uprobe(0);
+	if (!ASSERT_OK(err, "unregister_uprobe"))
+		return;
+
+	for (i = 0; i < cnt; i++) {
+		unsigned int offset = i * sizeof(unsigned long);
+
+		switch (offset) {
+		case offsetof(struct pt_regs, rax):
+			ASSERT_EQ(pa[i], 0x12345678deadbeef, "rax");
+			break;
+		case offsetof(struct pt_regs, rcx):
+			ASSERT_EQ(pa[i], 0x87654321feebdaed, "rcx");
+			break;
+		case offsetof(struct pt_regs, r11):
+			ASSERT_EQ(pa[i], (__u64) -1, "r11");
+			break;
+		default:
+			if (!ASSERT_EQ(pa[i], pb[i], "register before-after value check"))
+				fprintf(stdout, "failed register offset %u\n", offset);
+		}
+	}
+}
+
+#ifndef __NR_uretprobe
+#define __NR_uretprobe 335
+#endif
+
+__naked unsigned long uretprobe_syscall_call_1(void)
+{
+	/*
+	 * Pretend we are uretprobe trampoline to trigger the return
+	 * probe invocation in order to verify we get SIGILL.
+	 */
+	asm volatile (
+		"pushq %rax\n"
+		"pushq %rcx\n"
+		"pushq %r11\n"
+		"movq $" __stringify(__NR_uretprobe) ", %rax\n"
+		"syscall\n"
+		"popq %r11\n"
+		"popq %rcx\n"
+		"retq\n"
+	);
+}
+
+__naked unsigned long uretprobe_syscall_call(void)
+{
+	asm volatile (
+		"call uretprobe_syscall_call_1\n"
+		"retq\n"
+	);
+}
+
+static void test_uretprobe_syscall_call(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts,
+		.retprobe = true,
+	);
+	struct uprobe_syscall_executed *skel;
+	int pid, status, err, go[2], c = 0;
+	struct bpf_link *link;
+
+	if (!ASSERT_OK(pipe(go), "pipe"))
+		return;
+
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		goto cleanup;
+
+	pid = fork();
+	if (!ASSERT_GE(pid, 0, "fork"))
+		goto cleanup;
+
+	/* child */
+	if (pid == 0) {
+		close(go[1]);
+
+		/* wait for parent's kick */
+		err = read(go[0], &c, 1);
+		if (err != 1)
+			exit(-1);
+
+		uretprobe_syscall_call();
+		_exit(0);
+	}
+
+	skel->bss->pid = pid;
+
+	link = bpf_program__attach_uprobe_multi(skel->progs.test_uretprobe_multi,
+						pid, "/proc/self/exe",
+						"uretprobe_syscall_call", &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+	skel->links.test_uretprobe_multi = link;
+
+	/* kick the child */
+	write(go[1], &c, 1);
+	err = waitpid(pid, &status, 0);
+	ASSERT_EQ(err, pid, "waitpid");
+
+	/* verify the child got killed with SIGILL */
+	ASSERT_EQ(WIFSIGNALED(status), 1, "WIFSIGNALED");
+	ASSERT_EQ(WTERMSIG(status), SIGILL, "WTERMSIG");
+
+	/* verify the uretprobe program wasn't called */
+	ASSERT_EQ(skel->bss->executed, 0, "executed");
+
+cleanup:
+	uprobe_syscall_executed__destroy(skel);
+	close(go[1]);
+	close(go[0]);
+}
+
+#define TRAMP "[uprobes-trampoline]"
+
+__attribute__((aligned(16)))
+__nocf_check __weak __naked void uprobe_test(void)
+{
+	asm volatile ("					\n"
+		".byte 0x0f, 0x1f, 0x44, 0x00, 0x00	\n"
+		"ret					\n"
+	);
+}
+
+__attribute__((aligned(16)))
+__nocf_check __weak void usdt_test(void)
+{
+	USDT(optimized_uprobe, usdt);
+}
+
+static int find_uprobes_trampoline(void *tramp_addr)
+{
+	void *start, *end;
+	char line[128];
+	int ret = -1;
+	FILE *maps;
+
+	maps = fopen("/proc/self/maps", "r");
+	if (!maps) {
+		fprintf(stderr, "cannot open maps\n");
+		return -1;
+	}
+
+	while (fgets(line, sizeof(line), maps)) {
+		int m = -1;
+
+		/* We care only about private r-x mappings. */
+		if (sscanf(line, "%p-%p r-xp %*x %*x:%*x %*u %n", &start, &end, &m) != 2)
+			continue;
+		if (m < 0)
+			continue;
+		if (!strncmp(&line[m], TRAMP, sizeof(TRAMP)-1) && (start == tramp_addr)) {
+			ret = 0;
+			break;
+		}
+	}
+
+	fclose(maps);
+	return ret;
+}
+
+static unsigned char nop5[5] = { 0x0f, 0x1f, 0x44, 0x00, 0x00 };
+
+static void *find_nop5(void *fn)
+{
+	int i;
+
+	for (i = 0; i < 10; i++) {
+		if (!memcmp(nop5, fn + i, 5))
+			return fn + i;
+	}
+	return NULL;
+}
+
+typedef void (__attribute__((nocf_check)) *trigger_t)(void);
+
+static void *check_attach(struct uprobe_syscall_executed *skel, trigger_t trigger,
+			  void *addr, int executed)
+{
+	struct __arch_relative_insn {
+		__u8 op;
+		__s32 raddr;
+	} __packed *call;
+	void *tramp = NULL;
+
+	/* Uprobe gets optimized after first trigger, so let's press twice. */
+	trigger();
+	trigger();
+
+	/* Make sure bpf program got executed.. */
+	ASSERT_EQ(skel->bss->executed, executed, "executed");
+
+	/* .. and check the trampoline is as expected. */
+	call = (struct __arch_relative_insn *) addr;
+	tramp = (void *) (call + 1) + call->raddr;
+	ASSERT_EQ(call->op, 0xe8, "call");
+	ASSERT_OK(find_uprobes_trampoline(tramp), "uprobes_trampoline");
+
+	return tramp;
+}
+
+static void check_detach(void *addr, void *tramp)
+{
+	/* [uprobes_trampoline] stays after detach */
+	ASSERT_OK(find_uprobes_trampoline(tramp), "uprobes_trampoline");
+	ASSERT_OK(memcmp(addr, nop5, 5), "nop5");
+}
+
+static void check(struct uprobe_syscall_executed *skel, struct bpf_link *link,
+		  trigger_t trigger, void *addr, int executed)
+{
+	void *tramp;
+
+	tramp = check_attach(skel, trigger, addr, executed);
+	bpf_link__destroy(link);
+	check_detach(addr, tramp);
+}
+
+static void test_uprobe_legacy(void)
+{
+	struct uprobe_syscall_executed *skel = NULL;
+	LIBBPF_OPTS(bpf_uprobe_opts, opts,
+		.retprobe = true,
+	);
+	struct bpf_link *link;
+	unsigned long offset;
+
+	offset = get_uprobe_offset(&uprobe_test);
+	if (!ASSERT_GE(offset, 0, "get_uprobe_offset"))
+		goto cleanup;
+
+	/* uprobe */
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	link = bpf_program__attach_uprobe_opts(skel->progs.test_uprobe,
+				0, "/proc/self/exe", offset, NULL);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_opts"))
+		goto cleanup;
+
+	check(skel, link, uprobe_test, uprobe_test, 2);
+
+	/* uretprobe */
+	skel->bss->executed = 0;
+
+	link = bpf_program__attach_uprobe_opts(skel->progs.test_uretprobe,
+				0, "/proc/self/exe", offset, &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_opts"))
+		goto cleanup;
+
+	check(skel, link, uprobe_test, uprobe_test, 2);
+
+cleanup:
+	uprobe_syscall_executed__destroy(skel);
+}
+
+static void test_uprobe_multi(void)
+{
+	struct uprobe_syscall_executed *skel = NULL;
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts);
+	struct bpf_link *link;
+	unsigned long offset;
+
+	offset = get_uprobe_offset(&uprobe_test);
+	if (!ASSERT_GE(offset, 0, "get_uprobe_offset"))
+		goto cleanup;
+
+	opts.offsets = &offset;
+	opts.cnt = 1;
+
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	/* uprobe.multi */
+	link = bpf_program__attach_uprobe_multi(skel->progs.test_uprobe_multi,
+				0, "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	check(skel, link, uprobe_test, uprobe_test, 2);
+
+	/* uretprobe.multi */
+	skel->bss->executed = 0;
+	opts.retprobe = true;
+	link = bpf_program__attach_uprobe_multi(skel->progs.test_uretprobe_multi,
+				0, "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	check(skel, link, uprobe_test, uprobe_test, 2);
+
+cleanup:
+	uprobe_syscall_executed__destroy(skel);
+}
+
+static void test_uprobe_session(void)
+{
+	struct uprobe_syscall_executed *skel = NULL;
+	LIBBPF_OPTS(bpf_uprobe_multi_opts, opts,
+		.session = true,
+	);
+	struct bpf_link *link;
+	unsigned long offset;
+
+	offset = get_uprobe_offset(&uprobe_test);
+	if (!ASSERT_GE(offset, 0, "get_uprobe_offset"))
+		goto cleanup;
+
+	opts.offsets = &offset;
+	opts.cnt = 1;
+
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	link = bpf_program__attach_uprobe_multi(skel->progs.test_uprobe_session,
+				0, "/proc/self/exe", NULL, &opts);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_uprobe_multi"))
+		goto cleanup;
+
+	check(skel, link, uprobe_test, uprobe_test, 4);
+
+cleanup:
+	uprobe_syscall_executed__destroy(skel);
+}
+
+static void test_uprobe_usdt(void)
+{
+	struct uprobe_syscall_executed *skel;
+	struct bpf_link *link;
+	void *addr;
+
+	errno = 0;
+	addr = find_nop5(usdt_test);
+	if (!ASSERT_OK_PTR(addr, "find_nop5"))
+		return;
+
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		return;
+
+	skel->bss->pid = getpid();
+
+	link = bpf_program__attach_usdt(skel->progs.test_usdt,
+				-1 /* all PIDs */, "/proc/self/exe",
+				"optimized_uprobe", "usdt", NULL);
+	if (!ASSERT_OK_PTR(link, "bpf_program__attach_usdt"))
+		goto cleanup;
+
+	check(skel, link, usdt_test, addr, 2);
+
+cleanup:
+	uprobe_syscall_executed__destroy(skel);
+}
+
+/*
+ * Borrowed from tools/testing/selftests/x86/test_shadow_stack.c.
+ *
+ * For use in inline enablement of shadow stack.
+ *
+ * The program can't return from the point where shadow stack gets enabled
+ * because there will be no address on the shadow stack. So it can't use
+ * syscall() for enablement, since it is a function.
+ *
+ * Based on code from nolibc.h. Keep a copy here because this can't pull
+ * in all of nolibc.h.
+ */
+#define ARCH_PRCTL(arg1, arg2)					\
+({								\
+	long _ret;						\
+	register long _num  asm("eax") = __NR_arch_prctl;	\
+	register long _arg1 asm("rdi") = (long)(arg1);		\
+	register long _arg2 asm("rsi") = (long)(arg2);		\
+								\
+	asm volatile (						\
+		"syscall\n"					\
+		: "=a"(_ret)					\
+		: "r"(_arg1), "r"(_arg2),			\
+		  "0"(_num)					\
+		: "rcx", "r11", "memory", "cc"			\
+	);							\
+	_ret;							\
+})
+
+#ifndef ARCH_SHSTK_ENABLE
+#define ARCH_SHSTK_ENABLE	0x5001
+#define ARCH_SHSTK_DISABLE	0x5002
+#define ARCH_SHSTK_SHSTK	(1ULL <<  0)
+#endif
+
+static void test_uretprobe_shadow_stack(void)
+{
+	if (ARCH_PRCTL(ARCH_SHSTK_ENABLE, ARCH_SHSTK_SHSTK)) {
+		test__skip();
+		return;
+	}
+
+	/* Run all the tests with shadow stack in place. */
+
+	test_uprobe_regs_equal(false);
+	test_uprobe_regs_equal(true);
+	test_uretprobe_syscall_call();
+
+	test_uprobe_legacy();
+	test_uprobe_multi();
+	test_uprobe_session();
+	test_uprobe_usdt();
+
+	test_regs_change();
+
+	ARCH_PRCTL(ARCH_SHSTK_DISABLE, ARCH_SHSTK_SHSTK);
+}
+
+static volatile bool race_stop;
+
+static USDT_DEFINE_SEMA(race);
+
+static void *worker_trigger(void *arg)
+{
+	unsigned long rounds = 0;
+
+	while (!race_stop) {
+		uprobe_test();
+		rounds++;
+	}
+
+	printf("tid %ld trigger rounds: %lu\n", sys_gettid(), rounds);
+	return NULL;
+}
+
+static void *worker_attach(void *arg)
+{
+	LIBBPF_OPTS(bpf_uprobe_opts, opts);
+	struct uprobe_syscall_executed *skel;
+	unsigned long rounds = 0, offset;
+	const char *sema[2] = {
+		__stringify(USDT_SEMA(race)),
+		NULL,
+	};
+	unsigned long *ref;
+	int err;
+
+	offset = get_uprobe_offset(&uprobe_test);
+	if (!ASSERT_GE(offset, 0, "get_uprobe_offset"))
+		return NULL;
+
+	err = elf_resolve_syms_offsets("/proc/self/exe", 1, (const char **) &sema, &ref, STT_OBJECT);
+	if (!ASSERT_OK(err, "elf_resolve_syms_offsets_sema"))
+		return NULL;
+
+	opts.ref_ctr_offset = *ref;
+
+	skel = uprobe_syscall_executed__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "uprobe_syscall_executed__open_and_load"))
+		return NULL;
+
+	skel->bss->pid = getpid();
+
+	while (!race_stop) {
+		skel->links.test_uprobe = bpf_program__attach_uprobe_opts(skel->progs.test_uprobe,
+					0, "/proc/self/exe", offset, &opts);
+		if (!ASSERT_OK_PTR(skel->links.test_uprobe, "bpf_program__attach_uprobe_opts"))
+			break;
+
+		bpf_link__destroy(skel->links.test_uprobe);
+		skel->links.test_uprobe = NULL;
+		rounds++;
+	}
+
+	printf("tid %ld attach rounds: %lu hits: %d\n", sys_gettid(), rounds, skel->bss->executed);
+	uprobe_syscall_executed__destroy(skel);
+	free(ref);
+	return NULL;
+}
+
+static useconds_t race_msec(void)
+{
+	char *env;
+
+	env = getenv("BPF_SELFTESTS_UPROBE_SYSCALL_RACE_MSEC");
+	if (env)
+		return atoi(env);
+
+	/* default duration is 500ms */
+	return 500;
+}
+
+static void test_uprobe_race(void)
+{
+	int err, i, nr_threads;
+	pthread_t *threads;
+
+	nr_threads = libbpf_num_possible_cpus();
+	if (!ASSERT_GT(nr_threads, 0, "libbpf_num_possible_cpus"))
+		return;
+	nr_threads = max(2, nr_threads);
+
+	threads = alloca(sizeof(*threads) * nr_threads);
+	if (!ASSERT_OK_PTR(threads, "malloc"))
+		return;
+
+	for (i = 0; i < nr_threads; i++) {
+		err = pthread_create(&threads[i], NULL, i % 2 ? worker_trigger : worker_attach,
+				     NULL);
+		if (!ASSERT_OK(err, "pthread_create"))
+			goto cleanup;
+	}
+
+	usleep(race_msec() * 1000);
+
+cleanup:
+	race_stop = true;
+	for (nr_threads = i, i = 0; i < nr_threads; i++)
+		pthread_join(threads[i], NULL);
+
+	ASSERT_FALSE(USDT_SEMA_IS_ACTIVE(race), "race_semaphore");
+}
+
+#ifndef __NR_uprobe
+#define __NR_uprobe 336
+#endif
+
+static void test_uprobe_error(void)
+{
+	long err = syscall(__NR_uprobe);
+
+	ASSERT_EQ(err, -1, "error");
+	ASSERT_EQ(errno, ENXIO, "errno");
+}
+
+static void __test_uprobe_syscall(void)
+{
+	if (test__start_subtest("uretprobe_regs_equal"))
+		test_uprobe_regs_equal(true);
+	if (test__start_subtest("uretprobe_syscall_call"))
+		test_uretprobe_syscall_call();
+	if (test__start_subtest("uretprobe_shadow_stack"))
+		test_uretprobe_shadow_stack();
+	if (test__start_subtest("uprobe_legacy"))
+		test_uprobe_legacy();
+	if (test__start_subtest("uprobe_multi"))
+		test_uprobe_multi();
+	if (test__start_subtest("uprobe_session"))
+		test_uprobe_session();
+	if (test__start_subtest("uprobe_usdt"))
+		test_uprobe_usdt();
+	if (test__start_subtest("uprobe_race"))
+		test_uprobe_race();
+	if (test__start_subtest("uprobe_error"))
+		test_uprobe_error();
+	if (test__start_subtest("uprobe_regs_equal"))
+		test_uprobe_regs_equal(false);
+	if (test__start_subtest("regs_change"))
+		test_regs_change();
+}
+#else
+static void __test_uprobe_syscall(void)
+{
+	test__skip();
+}
+#endif
+
+void test_uprobe_syscall(void)
+{
+	__test_uprobe_syscall();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/uretprobe_stack.c b/tools/testing/selftests/bpf/prog_tests/uretprobe_stack.c
new file mode 100644
index 000000000000..6deb8d560ddd
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/uretprobe_stack.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include "uretprobe_stack.skel.h"
+#include "../sdt.h"
+
+/* We set up target_1() -> target_2() -> target_3() -> target_4() -> USDT()
+ * call chain, each being traced by our BPF program. On entry or return from
+ * each target_*() we are capturing user stack trace and recording it in
+ * global variable, so that user space part of the test can validate it.
+ *
+ * Note, we put each target function into a custom section to get those
+ * __start_XXX/__stop_XXX symbols, generated by linker for us, which allow us
+ * to know address range of those functions
+ */
+__attribute__((section("uprobe__target_4")))
+__weak int target_4(void)
+{
+	STAP_PROBE1(uretprobe_stack, target, 42);
+	return 42;
+}
+
+extern const void *__start_uprobe__target_4;
+extern const void *__stop_uprobe__target_4;
+
+__attribute__((section("uprobe__target_3")))
+__weak int target_3(void)
+{
+	return target_4();
+}
+
+extern const void *__start_uprobe__target_3;
+extern const void *__stop_uprobe__target_3;
+
+__attribute__((section("uprobe__target_2")))
+__weak int target_2(void)
+{
+	return target_3();
+}
+
+extern const void *__start_uprobe__target_2;
+extern const void *__stop_uprobe__target_2;
+
+__attribute__((section("uprobe__target_1")))
+__weak int target_1(int depth)
+{
+	if (depth < 1)
+		return 1 + target_1(depth + 1);
+	else
+		return target_2();
+}
+
+extern const void *__start_uprobe__target_1;
+extern const void *__stop_uprobe__target_1;
+
+extern const void *__start_uretprobe_stack_sec;
+extern const void *__stop_uretprobe_stack_sec;
+
+struct range {
+	long start;
+	long stop;
+};
+
+static struct range targets[] = {
+	{}, /* we want target_1 to map to target[1], so need 1-based indexing */
+	{ (long)&__start_uprobe__target_1, (long)&__stop_uprobe__target_1 },
+	{ (long)&__start_uprobe__target_2, (long)&__stop_uprobe__target_2 },
+	{ (long)&__start_uprobe__target_3, (long)&__stop_uprobe__target_3 },
+	{ (long)&__start_uprobe__target_4, (long)&__stop_uprobe__target_4 },
+};
+
+static struct range caller = {
+	(long)&__start_uretprobe_stack_sec,
+	(long)&__stop_uretprobe_stack_sec,
+};
+
+static void validate_stack(__u64 *ips, int stack_len, int cnt, ...)
+{
+	int i, j;
+	va_list args;
+
+	if (!ASSERT_GT(stack_len, 0, "stack_len"))
+		return;
+
+	stack_len /= 8;
+
+	/* check if we have enough entries to satisfy test expectations */
+	if (!ASSERT_GE(stack_len, cnt, "stack_len2"))
+		return;
+
+	if (env.verbosity >= VERBOSE_NORMAL) {
+		printf("caller: %#lx - %#lx\n", caller.start, caller.stop);
+		for (i = 1; i < ARRAY_SIZE(targets); i++)
+			printf("target_%d: %#lx - %#lx\n", i, targets[i].start, targets[i].stop);
+		for (i = 0; i < stack_len; i++) {
+			for (j = 1; j < ARRAY_SIZE(targets); j++) {
+				if (ips[i] >= targets[j].start && ips[i] < targets[j].stop)
+					break;
+			}
+			if (j < ARRAY_SIZE(targets)) { /* found target match */
+				printf("ENTRY #%d: %#lx (in target_%d)\n", i, (long)ips[i], j);
+			} else if (ips[i] >= caller.start && ips[i] < caller.stop) {
+				printf("ENTRY #%d: %#lx (in caller)\n", i, (long)ips[i]);
+			} else {
+				printf("ENTRY #%d: %#lx\n", i, (long)ips[i]);
+			}
+		}
+	}
+
+	va_start(args, cnt);
+
+	for (i = cnt - 1; i >= 0; i--) {
+		/* most recent entry is the deepest target function */
+		const struct range *t = va_arg(args, const struct range *);
+
+		ASSERT_GE(ips[i], t->start, "addr_start");
+		ASSERT_LT(ips[i], t->stop, "addr_stop");
+	}
+
+	va_end(args);
+}
+
+/* __weak prevents inlining */
+__attribute__((section("uretprobe_stack_sec")))
+__weak void test_uretprobe_stack(void)
+{
+	LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
+	struct uretprobe_stack *skel;
+	int err;
+
+	skel = uretprobe_stack__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	err = uretprobe_stack__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* trigger */
+	ASSERT_EQ(target_1(0), 42 + 1, "trigger_return");
+
+	/*
+	 * Stacks captured on ENTRY uprobes
+	 */
+
+	/* (uprobe 1) target_1 in stack trace*/
+	validate_stack(skel->bss->entry_stack1, skel->bss->entry1_len,
+		       2, &caller, &targets[1]);
+	/* (uprobe 1, recursed) */
+	validate_stack(skel->bss->entry_stack1_recur, skel->bss->entry1_recur_len,
+		       3, &caller, &targets[1], &targets[1]);
+	/* (uprobe 2) caller -> target_1 -> target_1 -> target_2 */
+	validate_stack(skel->bss->entry_stack2, skel->bss->entry2_len,
+		       4, &caller, &targets[1], &targets[1], &targets[2]);
+	/* (uprobe 3) */
+	validate_stack(skel->bss->entry_stack3, skel->bss->entry3_len,
+		       5, &caller, &targets[1], &targets[1], &targets[2], &targets[3]);
+	/* (uprobe 4) caller -> target_1 -> target_1 -> target_2 -> target_3 -> target_4 */
+	validate_stack(skel->bss->entry_stack4, skel->bss->entry4_len,
+		       6, &caller, &targets[1], &targets[1], &targets[2], &targets[3], &targets[4]);
+
+	/* (USDT): full caller -> target_1 -> target_1 -> target_2 (uretprobed)
+	 *              -> target_3 -> target_4 (uretprobes) chain
+	 */
+	validate_stack(skel->bss->usdt_stack, skel->bss->usdt_len,
+		       6, &caller, &targets[1], &targets[1], &targets[2], &targets[3], &targets[4]);
+
+	/*
+	 * Now stacks captured on the way out in EXIT uprobes
+	 */
+
+	/* (uretprobe 4) everything up to target_4, but excluding it */
+	validate_stack(skel->bss->exit_stack4, skel->bss->exit4_len,
+		       5, &caller, &targets[1], &targets[1], &targets[2], &targets[3]);
+	/* we didn't install uretprobes on target_2 and target_3 */
+	/* (uretprobe 1, recur) first target_1 call only */
+	validate_stack(skel->bss->exit_stack1_recur, skel->bss->exit1_recur_len,
+		       2, &caller, &targets[1]);
+	/* (uretprobe 1) just a caller in the stack trace */
+	validate_stack(skel->bss->exit_stack1, skel->bss->exit1_len,
+		       1, &caller);
+
+cleanup:
+	uretprobe_stack__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/usdt.c b/tools/testing/selftests/bpf/prog_tests/usdt.c
new file mode 100644
index 000000000000..f4be5269fa90
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/usdt.c
@@ -0,0 +1,526 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <test_progs.h>
+
+#define _SDT_HAS_SEMAPHORES 1
+#include "../sdt.h"
+
+#include "test_usdt.skel.h"
+#include "test_urandom_usdt.skel.h"
+
+int lets_test_this(int);
+
+static volatile int idx = 2;
+static volatile __u64 bla = 0xFEDCBA9876543210ULL;
+static volatile short nums[] = {-1, -2, -3, -4};
+
+static volatile struct {
+	int x;
+	signed char y;
+} t1 = { 1, -127 };
+
+#define SEC(name) __attribute__((section(name), used))
+
+unsigned short test_usdt0_semaphore SEC(".probes");
+unsigned short test_usdt3_semaphore SEC(".probes");
+unsigned short test_usdt12_semaphore SEC(".probes");
+
+static void __always_inline trigger_func(int x) {
+	long y = 42;
+
+	if (test_usdt0_semaphore)
+		STAP_PROBE(test, usdt0);
+	if (test_usdt3_semaphore)
+		STAP_PROBE3(test, usdt3, x, y, &bla);
+	if (test_usdt12_semaphore) {
+		STAP_PROBE12(test, usdt12,
+			     x, x + 1, y, x + y, 5,
+			     y / 7, bla, &bla, -9, nums[x],
+			     nums[idx], t1.y);
+	}
+}
+
+#if defined(__x86_64__) || defined(__i386__)
+/*
+ * SIB (Scale-Index-Base) addressing format: "size@(base_reg, index_reg, scale)"
+ * - 'size' is the size in bytes of the array element, and its sign indicates
+ *   whether the type is signed (negative) or unsigned (positive).
+ * - 'base_reg' is the register holding the base address, normally rdx or edx
+ * - 'index_reg' is the register holding the index, normally rax or eax
+ * - 'scale' is the scaling factor (typically 1, 2, 4, or 8), which matches the
+ *    size of the element type.
+ *
+ * For example, for an array of 'short' (signed 2-byte elements), the SIB spec would be:
+ * - size: -2 (negative because 'short' is signed)
+ * - scale: 2 (since sizeof(short) == 2)
+ *
+ * The resulting SIB format: "-2@(%%rdx,%%rax,2)" for x86_64, "-2@(%%edx,%%eax,2)" for i386
+ */
+static volatile short array[] = {-1, -2, -3, -4};
+
+#if defined(__x86_64__)
+#define USDT_SIB_ARG_SPEC -2@(%%rdx,%%rax,2)
+#else
+#define USDT_SIB_ARG_SPEC -2@(%%edx,%%eax,2)
+#endif
+
+unsigned short test_usdt_sib_semaphore SEC(".probes");
+
+static void trigger_sib_spec(void)
+{
+	/*
+	 * Force SIB addressing with inline assembly.
+	 *
+	 * You must compile with -std=gnu99 or -std=c99 to use the
+	 * STAP_PROBE_ASM macro.
+	 *
+	 * The STAP_PROBE_ASM macro generates a quoted string that gets
+	 * inserted between the surrounding assembly instructions. In this
+	 * case, USDT_SIB_ARG_SPEC is embedded directly into the instruction
+	 * stream, creating a probe point between the asm statement boundaries.
+	 * It works fine with gcc/clang.
+	 *
+	 * Register constraints:
+	 * - "d"(array): Binds the 'array' variable to %rdx or %edx register
+	 * - "a"(0): Binds the constant 0 to %rax or %eax register
+	 * These ensure that when USDT_SIB_ARG_SPEC references %%rdx(%edx) and
+	 * %%rax(%eax), they contain the expected values for SIB addressing.
+	 *
+	 * The "memory" clobber prevents the compiler from reordering memory
+	 * accesses around the probe point, ensuring that the probe behavior
+	 * is predictable and consistent.
+	 */
+	asm volatile(
+		STAP_PROBE_ASM(test, usdt_sib, USDT_SIB_ARG_SPEC)
+		:
+		: "d"(array), "a"(0)
+		: "memory"
+	);
+}
+#endif
+
+static void subtest_basic_usdt(bool optimized)
+{
+	LIBBPF_OPTS(bpf_usdt_opts, opts);
+	struct test_usdt *skel;
+	struct test_usdt__bss *bss;
+	int err, i, called;
+	const __u64 expected_cookie = 0xcafedeadbeeffeed;
+
+#define TRIGGER(x) ({			\
+	trigger_func(x);		\
+	if (optimized)			\
+		trigger_func(x);	\
+	optimized ? 2 : 1;		\
+	})
+
+	skel = test_usdt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bss = skel->bss;
+	bss->my_pid = getpid();
+
+	err = test_usdt__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* usdt0 won't be auto-attached */
+	opts.usdt_cookie = expected_cookie;
+	skel->links.usdt0 = bpf_program__attach_usdt(skel->progs.usdt0,
+						     0 /*self*/, "/proc/self/exe",
+						     "test", "usdt0", &opts);
+	if (!ASSERT_OK_PTR(skel->links.usdt0, "usdt0_link"))
+		goto cleanup;
+
+#if defined(__x86_64__) || defined(__i386__)
+	opts.usdt_cookie = expected_cookie;
+	skel->links.usdt_sib = bpf_program__attach_usdt(skel->progs.usdt_sib,
+							 0 /*self*/, "/proc/self/exe",
+							 "test", "usdt_sib", &opts);
+	if (!ASSERT_OK_PTR(skel->links.usdt_sib, "usdt_sib_link"))
+		goto cleanup;
+#endif
+
+	called = TRIGGER(1);
+
+	ASSERT_EQ(bss->usdt0_called, called, "usdt0_called");
+	ASSERT_EQ(bss->usdt3_called, called, "usdt3_called");
+	ASSERT_EQ(bss->usdt12_called, called, "usdt12_called");
+
+	ASSERT_EQ(bss->usdt0_cookie, expected_cookie, "usdt0_cookie");
+	ASSERT_EQ(bss->usdt0_arg_cnt, 0, "usdt0_arg_cnt");
+	ASSERT_EQ(bss->usdt0_arg_ret, -ENOENT, "usdt0_arg_ret");
+	ASSERT_EQ(bss->usdt0_arg_size, -ENOENT, "usdt0_arg_size");
+
+	/* auto-attached usdt3 gets default zero cookie value */
+	ASSERT_EQ(bss->usdt3_cookie, 0, "usdt3_cookie");
+	ASSERT_EQ(bss->usdt3_arg_cnt, 3, "usdt3_arg_cnt");
+
+	ASSERT_EQ(bss->usdt3_arg_rets[0], 0, "usdt3_arg1_ret");
+	ASSERT_EQ(bss->usdt3_arg_rets[1], 0, "usdt3_arg2_ret");
+	ASSERT_EQ(bss->usdt3_arg_rets[2], 0, "usdt3_arg3_ret");
+	ASSERT_EQ(bss->usdt3_args[0], 1, "usdt3_arg1");
+	ASSERT_EQ(bss->usdt3_args[1], 42, "usdt3_arg2");
+	ASSERT_EQ(bss->usdt3_args[2], (uintptr_t)&bla, "usdt3_arg3");
+	ASSERT_EQ(bss->usdt3_arg_sizes[0], 4, "usdt3_arg1_size");
+	ASSERT_EQ(bss->usdt3_arg_sizes[1], 8, "usdt3_arg2_size");
+	ASSERT_EQ(bss->usdt3_arg_sizes[2], 8, "usdt3_arg3_size");
+
+	/* auto-attached usdt12 gets default zero cookie value */
+	ASSERT_EQ(bss->usdt12_cookie, 0, "usdt12_cookie");
+	ASSERT_EQ(bss->usdt12_arg_cnt, 12, "usdt12_arg_cnt");
+
+	ASSERT_EQ(bss->usdt12_args[0], 1, "usdt12_arg1");
+	ASSERT_EQ(bss->usdt12_args[1], 1 + 1, "usdt12_arg2");
+	ASSERT_EQ(bss->usdt12_args[2], 42, "usdt12_arg3");
+	ASSERT_EQ(bss->usdt12_args[3], 42 + 1, "usdt12_arg4");
+	ASSERT_EQ(bss->usdt12_args[4], 5, "usdt12_arg5");
+	ASSERT_EQ(bss->usdt12_args[5], 42 / 7, "usdt12_arg6");
+	ASSERT_EQ(bss->usdt12_args[6], bla, "usdt12_arg7");
+	ASSERT_EQ(bss->usdt12_args[7], (uintptr_t)&bla, "usdt12_arg8");
+	ASSERT_EQ(bss->usdt12_args[8], -9, "usdt12_arg9");
+	ASSERT_EQ(bss->usdt12_args[9], nums[1], "usdt12_arg10");
+	ASSERT_EQ(bss->usdt12_args[10], nums[idx], "usdt12_arg11");
+	ASSERT_EQ(bss->usdt12_args[11], t1.y, "usdt12_arg12");
+
+	int usdt12_expected_arg_sizes[12] = { 4, 4, 8, 8, 4, 8, 8, 8, 4, 2, 2, 1 };
+
+	for (i = 0; i < 12; i++)
+		ASSERT_EQ(bss->usdt12_arg_sizes[i], usdt12_expected_arg_sizes[i], "usdt12_arg_size");
+
+	/* trigger_func() is marked __always_inline, so USDT invocations will be
+	 * inlined in two different places, meaning that each USDT will have
+	 * at least 2 different places to be attached to. This verifies that
+	 * bpf_program__attach_usdt() handles this properly and attaches to
+	 * all possible places of USDT invocation.
+	 */
+	called += TRIGGER(2);
+
+	ASSERT_EQ(bss->usdt0_called, called, "usdt0_called");
+	ASSERT_EQ(bss->usdt3_called, called, "usdt3_called");
+	ASSERT_EQ(bss->usdt12_called, called, "usdt12_called");
+
+	/* only check values that depend on trigger_func()'s input value */
+	ASSERT_EQ(bss->usdt3_args[0], 2, "usdt3_arg1");
+
+	ASSERT_EQ(bss->usdt12_args[0], 2, "usdt12_arg1");
+	ASSERT_EQ(bss->usdt12_args[1], 2 + 1, "usdt12_arg2");
+	ASSERT_EQ(bss->usdt12_args[3], 42 + 2, "usdt12_arg4");
+	ASSERT_EQ(bss->usdt12_args[9], nums[2], "usdt12_arg10");
+
+	/* detach and re-attach usdt3 */
+	bpf_link__destroy(skel->links.usdt3);
+
+	opts.usdt_cookie = 0xBADC00C51E;
+	skel->links.usdt3 = bpf_program__attach_usdt(skel->progs.usdt3, -1 /* any pid */,
+						     "/proc/self/exe", "test", "usdt3", &opts);
+	if (!ASSERT_OK_PTR(skel->links.usdt3, "usdt3_reattach"))
+		goto cleanup;
+
+	called += TRIGGER(3);
+
+	ASSERT_EQ(bss->usdt3_called, called, "usdt3_called");
+	/* this time usdt3 has custom cookie */
+	ASSERT_EQ(bss->usdt3_cookie, 0xBADC00C51E, "usdt3_cookie");
+	ASSERT_EQ(bss->usdt3_arg_cnt, 3, "usdt3_arg_cnt");
+
+	ASSERT_EQ(bss->usdt3_arg_rets[0], 0, "usdt3_arg1_ret");
+	ASSERT_EQ(bss->usdt3_arg_rets[1], 0, "usdt3_arg2_ret");
+	ASSERT_EQ(bss->usdt3_arg_rets[2], 0, "usdt3_arg3_ret");
+	ASSERT_EQ(bss->usdt3_args[0], 3, "usdt3_arg1");
+	ASSERT_EQ(bss->usdt3_args[1], 42, "usdt3_arg2");
+	ASSERT_EQ(bss->usdt3_args[2], (uintptr_t)&bla, "usdt3_arg3");
+
+#if defined(__x86_64__) || defined(__i386__)
+	trigger_sib_spec();
+	ASSERT_EQ(bss->usdt_sib_called, 1, "usdt_sib_called");
+	ASSERT_EQ(bss->usdt_sib_cookie, expected_cookie, "usdt_sib_cookie");
+	ASSERT_EQ(bss->usdt_sib_arg_cnt, 1, "usdt_sib_arg_cnt");
+	ASSERT_EQ(bss->usdt_sib_arg, nums[0], "usdt_sib_arg");
+	ASSERT_EQ(bss->usdt_sib_arg_ret, 0, "usdt_sib_arg_ret");
+	ASSERT_EQ(bss->usdt_sib_arg_size, sizeof(nums[0]), "usdt_sib_arg_size");
+#endif
+
+cleanup:
+	test_usdt__destroy(skel);
+#undef TRIGGER
+}
+
+unsigned short test_usdt_100_semaphore SEC(".probes");
+unsigned short test_usdt_300_semaphore SEC(".probes");
+unsigned short test_usdt_400_semaphore SEC(".probes");
+
+#define R10(F, X)  F(X+0); F(X+1);F(X+2); F(X+3); F(X+4); \
+		   F(X+5); F(X+6); F(X+7); F(X+8); F(X+9);
+#define R100(F, X) R10(F,X+ 0);R10(F,X+10);R10(F,X+20);R10(F,X+30);R10(F,X+40); \
+		   R10(F,X+50);R10(F,X+60);R10(F,X+70);R10(F,X+80);R10(F,X+90);
+
+/* carefully control that we get exactly 100 inlines by preventing inlining */
+static void __always_inline f100(int x)
+{
+	STAP_PROBE1(test, usdt_100, x);
+}
+
+__weak void trigger_100_usdts(void)
+{
+	R100(f100, 0);
+}
+
+/* we shouldn't be able to attach to test:usdt2_300 USDT as we don't have as
+ * many slots for specs. It's important that each STAP_PROBE2() invocation
+ * (after untolling) gets different arg spec due to compiler inlining i as
+ * a constant
+ */
+static void __always_inline f300(int x)
+{
+	STAP_PROBE1(test, usdt_300, x);
+}
+
+__weak void trigger_300_usdts(void)
+{
+	R100(f300, 0);
+	R100(f300, 100);
+	R100(f300, 200);
+}
+
+static void __always_inline f400(int x __attribute__((unused)))
+{
+	STAP_PROBE1(test, usdt_400, 400);
+}
+
+/* this time we have 400 different USDT call sites, but they have uniform
+ * argument location, so libbpf's spec string deduplication logic should keep
+ * spec count use very small and so we should be able to attach to all 400
+ * call sites
+ */
+__weak void trigger_400_usdts(void)
+{
+	R100(f400, 0);
+	R100(f400, 100);
+	R100(f400, 200);
+	R100(f400, 300);
+}
+
+static void subtest_multispec_usdt(void)
+{
+	LIBBPF_OPTS(bpf_usdt_opts, opts);
+	struct test_usdt *skel;
+	struct test_usdt__bss *bss;
+	int err, i;
+
+	skel = test_usdt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bss = skel->bss;
+	bss->my_pid = getpid();
+
+	err = test_usdt__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	/* usdt_100 is auto-attached and there are 100 inlined call sites,
+	 * let's validate that all of them are properly attached to and
+	 * handled from BPF side
+	 */
+	trigger_100_usdts();
+
+	ASSERT_EQ(bss->usdt_100_called, 100, "usdt_100_called");
+	ASSERT_EQ(bss->usdt_100_sum, 99 * 100 / 2, "usdt_100_sum");
+
+	/* Stress test free spec ID tracking. By default libbpf allows up to
+	 * 256 specs to be used, so if we don't return free spec IDs back
+	 * after few detachments and re-attachments we should run out of
+	 * available spec IDs.
+	 */
+	for (i = 0; i < 2; i++) {
+		bpf_link__destroy(skel->links.usdt_100);
+
+		skel->links.usdt_100 = bpf_program__attach_usdt(skel->progs.usdt_100, -1,
+							        "/proc/self/exe",
+								"test", "usdt_100", NULL);
+		if (!ASSERT_OK_PTR(skel->links.usdt_100, "usdt_100_reattach"))
+			goto cleanup;
+
+		bss->usdt_100_sum = 0;
+		trigger_100_usdts();
+
+		ASSERT_EQ(bss->usdt_100_called, (i + 1) * 100 + 100, "usdt_100_called");
+		ASSERT_EQ(bss->usdt_100_sum, 99 * 100 / 2, "usdt_100_sum");
+	}
+
+	/* Now let's step it up and try to attach USDT that requires more than
+	 * 256 attach points with different specs for each.
+	 * Note that we need trigger_300_usdts() only to actually have 300
+	 * USDT call sites, we are not going to actually trace them.
+	 */
+	trigger_300_usdts();
+
+	bpf_link__destroy(skel->links.usdt_100);
+
+	bss->usdt_100_called = 0;
+	bss->usdt_100_sum = 0;
+
+	/* If built with arm64/clang, there will be much less number of specs
+	 * for usdt_300 call sites.
+	 */
+#if !defined(__aarch64__) || !defined(__clang__)
+	/* we'll reuse usdt_100 BPF program for usdt_300 test */
+	skel->links.usdt_100 = bpf_program__attach_usdt(skel->progs.usdt_100, -1, "/proc/self/exe",
+							"test", "usdt_300", NULL);
+	err = -errno;
+	if (!ASSERT_ERR_PTR(skel->links.usdt_100, "usdt_300_bad_attach"))
+		goto cleanup;
+	ASSERT_EQ(err, -E2BIG, "usdt_300_attach_err");
+
+	/* let's check that there are no "dangling" BPF programs attached due
+	 * to partial success of the above test:usdt_300 attachment
+	 */
+	f300(777); /* this is 301st instance of usdt_300 */
+
+	ASSERT_EQ(bss->usdt_100_called, 0, "usdt_301_called");
+	ASSERT_EQ(bss->usdt_100_sum, 0, "usdt_301_sum");
+#endif
+
+	/* This time we have USDT with 400 inlined invocations, but arg specs
+	 * should be the same across all sites, so libbpf will only need to
+	 * use one spec and thus we'll be able to attach 400 uprobes
+	 * successfully.
+	 *
+	 * Again, we are reusing usdt_100 BPF program.
+	 */
+	skel->links.usdt_100 = bpf_program__attach_usdt(skel->progs.usdt_100, -1,
+							"/proc/self/exe",
+							"test", "usdt_400", NULL);
+	if (!ASSERT_OK_PTR(skel->links.usdt_100, "usdt_400_attach"))
+		goto cleanup;
+
+	trigger_400_usdts();
+
+	ASSERT_EQ(bss->usdt_100_called, 400, "usdt_400_called");
+	ASSERT_EQ(bss->usdt_100_sum, 400 * 400, "usdt_400_sum");
+
+cleanup:
+	test_usdt__destroy(skel);
+}
+
+static FILE *urand_spawn(int *pid)
+{
+	FILE *f;
+
+	/* urandom_read's stdout is wired into f */
+	f = popen("./urandom_read 1 report-pid", "r");
+	if (!f)
+		return NULL;
+
+	if (fscanf(f, "%d", pid) != 1) {
+		pclose(f);
+		errno = EINVAL;
+		return NULL;
+	}
+
+	return f;
+}
+
+static int urand_trigger(FILE **urand_pipe)
+{
+	int exit_code;
+
+	/* pclose() waits for child process to exit and returns their exit code */
+	exit_code = pclose(*urand_pipe);
+	*urand_pipe = NULL;
+
+	return exit_code;
+}
+
+static void subtest_urandom_usdt(bool auto_attach)
+{
+	struct test_urandom_usdt *skel;
+	struct test_urandom_usdt__bss *bss;
+	struct bpf_link *l;
+	FILE *urand_pipe = NULL;
+	int err, urand_pid = 0;
+
+	skel = test_urandom_usdt__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	urand_pipe = urand_spawn(&urand_pid);
+	if (!ASSERT_OK_PTR(urand_pipe, "urand_spawn"))
+		goto cleanup;
+
+	bss = skel->bss;
+	bss->urand_pid = urand_pid;
+
+	if (auto_attach) {
+		err = test_urandom_usdt__attach(skel);
+		if (!ASSERT_OK(err, "skel_auto_attach"))
+			goto cleanup;
+	} else {
+		l = bpf_program__attach_usdt(skel->progs.urand_read_without_sema,
+					     urand_pid, "./urandom_read",
+					     "urand", "read_without_sema", NULL);
+		if (!ASSERT_OK_PTR(l, "urand_without_sema_attach"))
+			goto cleanup;
+		skel->links.urand_read_without_sema = l;
+
+		l = bpf_program__attach_usdt(skel->progs.urand_read_with_sema,
+					     urand_pid, "./urandom_read",
+					     "urand", "read_with_sema", NULL);
+		if (!ASSERT_OK_PTR(l, "urand_with_sema_attach"))
+			goto cleanup;
+		skel->links.urand_read_with_sema = l;
+
+		l = bpf_program__attach_usdt(skel->progs.urandlib_read_without_sema,
+					     urand_pid, "./liburandom_read.so",
+					     "urandlib", "read_without_sema", NULL);
+		if (!ASSERT_OK_PTR(l, "urandlib_without_sema_attach"))
+			goto cleanup;
+		skel->links.urandlib_read_without_sema = l;
+
+		l = bpf_program__attach_usdt(skel->progs.urandlib_read_with_sema,
+					     urand_pid, "./liburandom_read.so",
+					     "urandlib", "read_with_sema", NULL);
+		if (!ASSERT_OK_PTR(l, "urandlib_with_sema_attach"))
+			goto cleanup;
+		skel->links.urandlib_read_with_sema = l;
+
+	}
+
+	/* trigger urandom_read USDTs */
+	ASSERT_OK(urand_trigger(&urand_pipe), "urand_exit_code");
+
+	ASSERT_EQ(bss->urand_read_without_sema_call_cnt, 1, "urand_wo_sema_cnt");
+	ASSERT_EQ(bss->urand_read_without_sema_buf_sz_sum, 256, "urand_wo_sema_sum");
+
+	ASSERT_EQ(bss->urand_read_with_sema_call_cnt, 1, "urand_w_sema_cnt");
+	ASSERT_EQ(bss->urand_read_with_sema_buf_sz_sum, 256, "urand_w_sema_sum");
+
+	ASSERT_EQ(bss->urandlib_read_without_sema_call_cnt, 1, "urandlib_wo_sema_cnt");
+	ASSERT_EQ(bss->urandlib_read_without_sema_buf_sz_sum, 256, "urandlib_wo_sema_sum");
+
+	ASSERT_EQ(bss->urandlib_read_with_sema_call_cnt, 1, "urandlib_w_sema_cnt");
+	ASSERT_EQ(bss->urandlib_read_with_sema_buf_sz_sum, 256, "urandlib_w_sema_sum");
+
+cleanup:
+	if (urand_pipe)
+		pclose(urand_pipe);
+	test_urandom_usdt__destroy(skel);
+}
+
+void test_usdt(void)
+{
+	if (test__start_subtest("basic"))
+		subtest_basic_usdt(false);
+#ifdef __x86_64__
+	if (test__start_subtest("basic_optimized"))
+		subtest_basic_usdt(true);
+#endif
+	if (test__start_subtest("multispec"))
+		subtest_multispec_usdt();
+	if (test__start_subtest("urand_auto_attach"))
+		subtest_urandom_usdt(true /* auto_attach */);
+	if (test__start_subtest("urand_pid_attach"))
+		subtest_urandom_usdt(false /* auto_attach */);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c b/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c
new file mode 100644
index 000000000000..9fd3ae987321
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/user_ringbuf.c
@@ -0,0 +1,701 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#define _GNU_SOURCE
+#include <linux/compiler.h>
+#include <linux/ring_buffer.h>
+#include <linux/build_bug.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/sysinfo.h>
+#include <test_progs.h>
+#include <uapi/linux/bpf.h>
+#include <unistd.h>
+
+#include "user_ringbuf_fail.skel.h"
+#include "user_ringbuf_success.skel.h"
+
+#include "../progs/test_user_ringbuf.h"
+
+static const long c_sample_size = sizeof(struct sample) + BPF_RINGBUF_HDR_SZ;
+static long c_ringbuf_size, c_max_entries;
+
+static void drain_current_samples(void)
+{
+	syscall(__NR_getpgid);
+}
+
+static int write_samples(struct user_ring_buffer *ringbuf, uint32_t num_samples)
+{
+	int i, err = 0;
+
+	/* Write some number of samples to the ring buffer. */
+	for (i = 0; i < num_samples; i++) {
+		struct sample *entry;
+		int read;
+
+		entry = user_ring_buffer__reserve(ringbuf, sizeof(*entry));
+		if (!entry) {
+			err = -errno;
+			goto done;
+		}
+
+		entry->pid = getpid();
+		entry->seq = i;
+		entry->value = i * i;
+
+		read = snprintf(entry->comm, sizeof(entry->comm), "%u", i);
+		if (read <= 0) {
+			/* Assert on the error path to avoid spamming logs with
+			 * mostly success messages.
+			 */
+			ASSERT_GT(read, 0, "snprintf_comm");
+			err = read;
+			user_ring_buffer__discard(ringbuf, entry);
+			goto done;
+		}
+
+		user_ring_buffer__submit(ringbuf, entry);
+	}
+
+done:
+	drain_current_samples();
+
+	return err;
+}
+
+static struct user_ringbuf_success *open_load_ringbuf_skel(void)
+{
+	struct user_ringbuf_success *skel;
+	int err;
+
+	skel = user_ringbuf_success__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return NULL;
+
+	err = bpf_map__set_max_entries(skel->maps.user_ringbuf, c_ringbuf_size);
+	if (!ASSERT_OK(err, "set_max_entries"))
+		goto cleanup;
+
+	err = bpf_map__set_max_entries(skel->maps.kernel_ringbuf, c_ringbuf_size);
+	if (!ASSERT_OK(err, "set_max_entries"))
+		goto cleanup;
+
+	err = user_ringbuf_success__load(skel);
+	if (!ASSERT_OK(err, "skel_load"))
+		goto cleanup;
+
+	return skel;
+
+cleanup:
+	user_ringbuf_success__destroy(skel);
+	return NULL;
+}
+
+static void test_user_ringbuf_mappings(void)
+{
+	int err, rb_fd;
+	int page_size = getpagesize();
+	void *mmap_ptr;
+	struct user_ringbuf_success *skel;
+
+	skel = open_load_ringbuf_skel();
+	if (!skel)
+		return;
+
+	rb_fd = bpf_map__fd(skel->maps.user_ringbuf);
+	/* cons_pos can be mapped R/O, can't add +X with mprotect. */
+	mmap_ptr = mmap(NULL, page_size, PROT_READ, MAP_SHARED, rb_fd, 0);
+	ASSERT_OK_PTR(mmap_ptr, "ro_cons_pos");
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_WRITE), "write_cons_pos_protect");
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_cons_pos_protect");
+	ASSERT_ERR_PTR(mremap(mmap_ptr, 0, 4 * page_size, MREMAP_MAYMOVE), "wr_prod_pos");
+	err = -errno;
+	ASSERT_ERR(err, "wr_prod_pos_err");
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_ro_cons");
+
+	/* prod_pos can be mapped RW, can't add +X with mprotect. */
+	mmap_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED,
+			rb_fd, page_size);
+	ASSERT_OK_PTR(mmap_ptr, "rw_prod_pos");
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_prod_pos_protect");
+	err = -errno;
+	ASSERT_ERR(err, "wr_prod_pos_err");
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_rw_prod");
+
+	/* data pages can be mapped RW, can't add +X with mprotect. */
+	mmap_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd,
+			2 * page_size);
+	ASSERT_OK_PTR(mmap_ptr, "rw_data");
+	ASSERT_ERR(mprotect(mmap_ptr, page_size, PROT_EXEC), "exec_data_protect");
+	err = -errno;
+	ASSERT_ERR(err, "exec_data_err");
+	ASSERT_OK(munmap(mmap_ptr, page_size), "unmap_rw_data");
+
+	user_ringbuf_success__destroy(skel);
+}
+
+static int load_skel_create_ringbufs(struct user_ringbuf_success **skel_out,
+				     struct ring_buffer **kern_ringbuf_out,
+				     ring_buffer_sample_fn callback,
+				     struct user_ring_buffer **user_ringbuf_out)
+{
+	struct user_ringbuf_success *skel;
+	struct ring_buffer *kern_ringbuf = NULL;
+	struct user_ring_buffer *user_ringbuf = NULL;
+	int err = -ENOMEM, rb_fd;
+
+	skel = open_load_ringbuf_skel();
+	if (!skel)
+		return err;
+
+	/* only trigger BPF program for current process */
+	skel->bss->pid = getpid();
+
+	if (kern_ringbuf_out) {
+		rb_fd = bpf_map__fd(skel->maps.kernel_ringbuf);
+		kern_ringbuf = ring_buffer__new(rb_fd, callback, skel, NULL);
+		if (!ASSERT_OK_PTR(kern_ringbuf, "kern_ringbuf_create"))
+			goto cleanup;
+
+		*kern_ringbuf_out = kern_ringbuf;
+	}
+
+	if (user_ringbuf_out) {
+		rb_fd = bpf_map__fd(skel->maps.user_ringbuf);
+		user_ringbuf = user_ring_buffer__new(rb_fd, NULL);
+		if (!ASSERT_OK_PTR(user_ringbuf, "user_ringbuf_create"))
+			goto cleanup;
+
+		*user_ringbuf_out = user_ringbuf;
+		ASSERT_EQ(skel->bss->read, 0, "no_reads_after_load");
+	}
+
+	err = user_ringbuf_success__attach(skel);
+	if (!ASSERT_OK(err, "skel_attach"))
+		goto cleanup;
+
+	*skel_out = skel;
+	return 0;
+
+cleanup:
+	if (kern_ringbuf_out)
+		*kern_ringbuf_out = NULL;
+	if (user_ringbuf_out)
+		*user_ringbuf_out = NULL;
+	ring_buffer__free(kern_ringbuf);
+	user_ring_buffer__free(user_ringbuf);
+	user_ringbuf_success__destroy(skel);
+	return err;
+}
+
+static int load_skel_create_user_ringbuf(struct user_ringbuf_success **skel_out,
+					 struct user_ring_buffer **ringbuf_out)
+{
+	return load_skel_create_ringbufs(skel_out, NULL, NULL, ringbuf_out);
+}
+
+static void manually_write_test_invalid_sample(struct user_ringbuf_success *skel,
+					       __u32 size, __u64 producer_pos, int err)
+{
+	void *data_ptr;
+	__u64 *producer_pos_ptr;
+	int rb_fd, page_size = getpagesize();
+
+	rb_fd = bpf_map__fd(skel->maps.user_ringbuf);
+
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_before_bad_sample");
+
+	/* Map the producer_pos as RW. */
+	producer_pos_ptr = mmap(NULL, page_size, PROT_READ | PROT_WRITE,
+				MAP_SHARED, rb_fd, page_size);
+	ASSERT_OK_PTR(producer_pos_ptr, "producer_pos_ptr");
+
+	/* Map the data pages as RW. */
+	data_ptr = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, rb_fd, 2 * page_size);
+	ASSERT_OK_PTR(data_ptr, "rw_data");
+
+	memset(data_ptr, 0, BPF_RINGBUF_HDR_SZ);
+	*(__u32 *)data_ptr = size;
+
+	/* Synchronizes with smp_load_acquire() in __bpf_user_ringbuf_peek() in the kernel. */
+	smp_store_release(producer_pos_ptr, producer_pos + BPF_RINGBUF_HDR_SZ);
+
+	drain_current_samples();
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_after_bad_sample");
+	ASSERT_EQ(skel->bss->err, err, "err_after_bad_sample");
+
+	ASSERT_OK(munmap(producer_pos_ptr, page_size), "unmap_producer_pos");
+	ASSERT_OK(munmap(data_ptr, page_size), "unmap_data_ptr");
+}
+
+static void test_user_ringbuf_post_misaligned(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+	__u32 size = (1 << 5) + 7;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "misaligned_skel"))
+		return;
+
+	manually_write_test_invalid_sample(skel, size, size, -EINVAL);
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_post_producer_wrong_offset(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+	__u32 size = (1 << 5);
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "wrong_offset_skel"))
+		return;
+
+	manually_write_test_invalid_sample(skel, size, size - 8, -EINVAL);
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_post_larger_than_ringbuf_sz(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+	__u32 size = c_ringbuf_size;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "huge_sample_skel"))
+		return;
+
+	manually_write_test_invalid_sample(skel, size, size, -E2BIG);
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_basic(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "ringbuf_basic_skel"))
+		return;
+
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_read_before");
+
+	err = write_samples(ringbuf, 2);
+	if (!ASSERT_OK(err, "write_samples"))
+		goto cleanup;
+
+	ASSERT_EQ(skel->bss->read, 2, "num_samples_read_after");
+
+cleanup:
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_sample_full_ring_buffer(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+	void *sample;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "ringbuf_full_sample_skel"))
+		return;
+
+	sample = user_ring_buffer__reserve(ringbuf, c_ringbuf_size - BPF_RINGBUF_HDR_SZ);
+	if (!ASSERT_OK_PTR(sample, "full_sample"))
+		goto cleanup;
+
+	user_ring_buffer__submit(ringbuf, sample);
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_read_before");
+	drain_current_samples();
+	ASSERT_EQ(skel->bss->read, 1, "num_samples_read_after");
+
+cleanup:
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_post_alignment_autoadjust(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	struct sample *sample;
+	int err;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (!ASSERT_OK(err, "ringbuf_align_autoadjust_skel"))
+		return;
+
+	/* libbpf should automatically round any sample up to an 8-byte alignment. */
+	sample = user_ring_buffer__reserve(ringbuf, sizeof(*sample) + 1);
+	ASSERT_OK_PTR(sample, "reserve_autoaligned");
+	user_ring_buffer__submit(ringbuf, sample);
+
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_read_before");
+	drain_current_samples();
+	ASSERT_EQ(skel->bss->read, 1, "num_samples_read_after");
+
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_overfill(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (err)
+		return;
+
+	err = write_samples(ringbuf, c_max_entries * 5);
+	ASSERT_ERR(err, "write_samples");
+	ASSERT_EQ(skel->bss->read, c_max_entries, "max_entries");
+
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_discards_properly_ignored(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err, num_discarded = 0;
+	__u64 *token;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (err)
+		return;
+
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_read_before");
+
+	while (1) {
+		/* Write samples until the buffer is full. */
+		token = user_ring_buffer__reserve(ringbuf, sizeof(*token));
+		if (!token)
+			break;
+
+		user_ring_buffer__discard(ringbuf, token);
+		num_discarded++;
+	}
+
+	if (!ASSERT_GE(num_discarded, 0, "num_discarded"))
+		goto cleanup;
+
+	/* Should not read any samples, as they are all discarded. */
+	ASSERT_EQ(skel->bss->read, 0, "num_pre_kick");
+	drain_current_samples();
+	ASSERT_EQ(skel->bss->read, 0, "num_post_kick");
+
+	/* Now that the ring buffer has been drained, we should be able to
+	 * reserve another token.
+	 */
+	token = user_ring_buffer__reserve(ringbuf, sizeof(*token));
+
+	if (!ASSERT_OK_PTR(token, "new_token"))
+		goto cleanup;
+
+	user_ring_buffer__discard(ringbuf, token);
+cleanup:
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void test_user_ringbuf_loop(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	uint32_t total_samples = 8192;
+	uint32_t remaining_samples = total_samples;
+	int err;
+
+	if (!ASSERT_LT(c_max_entries, total_samples, "compare_c_max_entries"))
+		return;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (err)
+		return;
+
+	do  {
+		uint32_t curr_samples;
+
+		curr_samples = remaining_samples > c_max_entries
+			? c_max_entries : remaining_samples;
+		err = write_samples(ringbuf, curr_samples);
+		if (err != 0) {
+			/* Assert inside of if statement to avoid flooding logs
+			 * on the success path.
+			 */
+			ASSERT_OK(err, "write_samples");
+			goto cleanup;
+		}
+
+		remaining_samples -= curr_samples;
+		ASSERT_EQ(skel->bss->read, total_samples - remaining_samples,
+			  "current_batched_entries");
+	} while (remaining_samples > 0);
+	ASSERT_EQ(skel->bss->read, total_samples, "total_batched_entries");
+
+cleanup:
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static int send_test_message(struct user_ring_buffer *ringbuf,
+			     enum test_msg_op op, s64 operand_64,
+			     s32 operand_32)
+{
+	struct test_msg *msg;
+
+	msg = user_ring_buffer__reserve(ringbuf, sizeof(*msg));
+	if (!msg) {
+		/* Assert on the error path to avoid spamming logs with mostly
+		 * success messages.
+		 */
+		ASSERT_OK_PTR(msg, "reserve_msg");
+		return -ENOMEM;
+	}
+
+	msg->msg_op = op;
+
+	switch (op) {
+	case TEST_MSG_OP_INC64:
+	case TEST_MSG_OP_MUL64:
+		msg->operand_64 = operand_64;
+		break;
+	case TEST_MSG_OP_INC32:
+	case TEST_MSG_OP_MUL32:
+		msg->operand_32 = operand_32;
+		break;
+	default:
+		PRINT_FAIL("Invalid operand %d\n", op);
+		user_ring_buffer__discard(ringbuf, msg);
+		return -EINVAL;
+	}
+
+	user_ring_buffer__submit(ringbuf, msg);
+
+	return 0;
+}
+
+static void kick_kernel_read_messages(void)
+{
+	syscall(__NR_prctl);
+}
+
+static int handle_kernel_msg(void *ctx, void *data, size_t len)
+{
+	struct user_ringbuf_success *skel = ctx;
+	struct test_msg *msg = data;
+
+	switch (msg->msg_op) {
+	case TEST_MSG_OP_INC64:
+		skel->bss->user_mutated += msg->operand_64;
+		return 0;
+	case TEST_MSG_OP_INC32:
+		skel->bss->user_mutated += msg->operand_32;
+		return 0;
+	case TEST_MSG_OP_MUL64:
+		skel->bss->user_mutated *= msg->operand_64;
+		return 0;
+	case TEST_MSG_OP_MUL32:
+		skel->bss->user_mutated *= msg->operand_32;
+		return 0;
+	default:
+		fprintf(stderr, "Invalid operand %d\n", msg->msg_op);
+		return -EINVAL;
+	}
+}
+
+static void drain_kernel_messages_buffer(struct ring_buffer *kern_ringbuf,
+					 struct user_ringbuf_success *skel)
+{
+	int cnt;
+
+	cnt = ring_buffer__consume(kern_ringbuf);
+	ASSERT_EQ(cnt, 8, "consume_kern_ringbuf");
+	ASSERT_OK(skel->bss->err, "consume_kern_ringbuf_err");
+}
+
+static void test_user_ringbuf_msg_protocol(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *user_ringbuf;
+	struct ring_buffer *kern_ringbuf;
+	int err, i;
+	__u64 expected_kern = 0;
+
+	err = load_skel_create_ringbufs(&skel, &kern_ringbuf, handle_kernel_msg, &user_ringbuf);
+	if (!ASSERT_OK(err, "create_ringbufs"))
+		return;
+
+	for (i = 0; i < 64; i++) {
+		enum test_msg_op op = i % TEST_MSG_OP_NUM_OPS;
+		__u64 operand_64 = TEST_OP_64;
+		__u32 operand_32 = TEST_OP_32;
+
+		err = send_test_message(user_ringbuf, op, operand_64, operand_32);
+		if (err) {
+			/* Only assert on a failure to avoid spamming success logs. */
+			ASSERT_OK(err, "send_test_message");
+			goto cleanup;
+		}
+
+		switch (op) {
+		case TEST_MSG_OP_INC64:
+			expected_kern += operand_64;
+			break;
+		case TEST_MSG_OP_INC32:
+			expected_kern += operand_32;
+			break;
+		case TEST_MSG_OP_MUL64:
+			expected_kern *= operand_64;
+			break;
+		case TEST_MSG_OP_MUL32:
+			expected_kern *= operand_32;
+			break;
+		default:
+			PRINT_FAIL("Unexpected op %d\n", op);
+			goto cleanup;
+		}
+
+		if (i % 8 == 0) {
+			kick_kernel_read_messages();
+			ASSERT_EQ(skel->bss->kern_mutated, expected_kern, "expected_kern");
+			ASSERT_EQ(skel->bss->err, 0, "bpf_prog_err");
+			drain_kernel_messages_buffer(kern_ringbuf, skel);
+		}
+	}
+
+cleanup:
+	ring_buffer__free(kern_ringbuf);
+	user_ring_buffer__free(user_ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+static void *kick_kernel_cb(void *arg)
+{
+	/* Kick the kernel, causing it to drain the ring buffer and then wake
+	 * up the test thread waiting on epoll.
+	 */
+	syscall(__NR_prlimit64);
+
+	return NULL;
+}
+
+static int spawn_kick_thread_for_poll(void)
+{
+	pthread_t thread;
+
+	return pthread_create(&thread, NULL, kick_kernel_cb, NULL);
+}
+
+static void test_user_ringbuf_blocking_reserve(void)
+{
+	struct user_ringbuf_success *skel;
+	struct user_ring_buffer *ringbuf;
+	int err, num_written = 0;
+	__u64 *token;
+
+	err = load_skel_create_user_ringbuf(&skel, &ringbuf);
+	if (err)
+		return;
+
+	ASSERT_EQ(skel->bss->read, 0, "num_samples_read_before");
+
+	while (1) {
+		/* Write samples until the buffer is full. */
+		token = user_ring_buffer__reserve(ringbuf, sizeof(*token));
+		if (!token)
+			break;
+
+		*token = 0xdeadbeef;
+
+		user_ring_buffer__submit(ringbuf, token);
+		num_written++;
+	}
+
+	if (!ASSERT_GE(num_written, 0, "num_written"))
+		goto cleanup;
+
+	/* Should not have read any samples until the kernel is kicked. */
+	ASSERT_EQ(skel->bss->read, 0, "num_pre_kick");
+
+	/* We correctly time out after 1 second, without a sample. */
+	token = user_ring_buffer__reserve_blocking(ringbuf, sizeof(*token), 1000);
+	if (!ASSERT_EQ(token, NULL, "pre_kick_timeout_token"))
+		goto cleanup;
+
+	err = spawn_kick_thread_for_poll();
+	if (!ASSERT_EQ(err, 0, "deferred_kick_thread\n"))
+		goto cleanup;
+
+	/* After spawning another thread that asynchronously kicks the kernel to
+	 * drain the messages, we're able to block and successfully get a
+	 * sample once we receive an event notification.
+	 */
+	token = user_ring_buffer__reserve_blocking(ringbuf, sizeof(*token), 10000);
+
+	if (!ASSERT_OK_PTR(token, "block_token"))
+		goto cleanup;
+
+	ASSERT_GT(skel->bss->read, 0, "num_post_kill");
+	ASSERT_LE(skel->bss->read, num_written, "num_post_kill");
+	ASSERT_EQ(skel->bss->err, 0, "err_post_poll");
+	user_ring_buffer__discard(ringbuf, token);
+
+cleanup:
+	user_ring_buffer__free(ringbuf);
+	user_ringbuf_success__destroy(skel);
+}
+
+#define SUCCESS_TEST(_func) { _func, #_func }
+
+static struct {
+	void (*test_callback)(void);
+	const char *test_name;
+} success_tests[] = {
+	SUCCESS_TEST(test_user_ringbuf_mappings),
+	SUCCESS_TEST(test_user_ringbuf_post_misaligned),
+	SUCCESS_TEST(test_user_ringbuf_post_producer_wrong_offset),
+	SUCCESS_TEST(test_user_ringbuf_post_larger_than_ringbuf_sz),
+	SUCCESS_TEST(test_user_ringbuf_basic),
+	SUCCESS_TEST(test_user_ringbuf_sample_full_ring_buffer),
+	SUCCESS_TEST(test_user_ringbuf_post_alignment_autoadjust),
+	SUCCESS_TEST(test_user_ringbuf_overfill),
+	SUCCESS_TEST(test_user_ringbuf_discards_properly_ignored),
+	SUCCESS_TEST(test_user_ringbuf_loop),
+	SUCCESS_TEST(test_user_ringbuf_msg_protocol),
+	SUCCESS_TEST(test_user_ringbuf_blocking_reserve),
+};
+
+void test_user_ringbuf(void)
+{
+	int i;
+
+	c_ringbuf_size = getpagesize(); /* 1 page */
+	c_max_entries = c_ringbuf_size / c_sample_size;
+
+	for (i = 0; i < ARRAY_SIZE(success_tests); i++) {
+		if (!test__start_subtest(success_tests[i].test_name))
+			continue;
+
+		success_tests[i].test_callback();
+	}
+
+	RUN_TESTS(user_ringbuf_fail);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/varlen.c b/tools/testing/selftests/bpf/prog_tests/varlen.c
new file mode 100644
index 000000000000..4d7056f8f177
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/varlen.c
@@ -0,0 +1,75 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <time.h>
+#include "test_varlen.skel.h"
+
+#define CHECK_VAL(got, exp) \
+	CHECK((got) != (exp), "check", "got %ld != exp %ld\n", \
+	      (long)(got), (long)(exp))
+
+void test_varlen(void)
+{
+	int duration = 0, err;
+	struct test_varlen* skel;
+	struct test_varlen__bss *bss;
+	struct test_varlen__data *data;
+	const char str1[] = "Hello, ";
+	const char str2[] = "World!";
+	const char exp_str[] = "Hello, \0World!\0";
+	const int size1 = sizeof(str1);
+	const int size2 = sizeof(str2);
+
+	skel = test_varlen__open_and_load();
+	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
+		return;
+	bss = skel->bss;
+	data = skel->data;
+
+	err = test_varlen__attach(skel);
+	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
+		goto cleanup;
+
+	bss->test_pid = getpid();
+
+	/* trigger everything */
+	memcpy(bss->buf_in1, str1, size1);
+	memcpy(bss->buf_in2, str2, size2);
+	bss->capture = true;
+	usleep(1);
+	bss->capture = false;
+
+	CHECK_VAL(bss->payload1_len1, size1);
+	CHECK_VAL(bss->payload1_len2, size2);
+	CHECK_VAL(bss->total1, size1 + size2);
+	CHECK(memcmp(bss->payload1, exp_str, size1 + size2), "content_check",
+	      "doesn't match!\n");
+
+	CHECK_VAL(data->payload2_len1, size1);
+	CHECK_VAL(data->payload2_len2, size2);
+	CHECK_VAL(data->total2, size1 + size2);
+	CHECK(memcmp(data->payload2, exp_str, size1 + size2), "content_check",
+	      "doesn't match!\n");
+
+	CHECK_VAL(data->payload3_len1, size1);
+	CHECK_VAL(data->payload3_len2, size2);
+	CHECK_VAL(data->total3, size1 + size2);
+	CHECK(memcmp(data->payload3, exp_str, size1 + size2), "content_check",
+	      "doesn't match!\n");
+
+	CHECK_VAL(data->payload4_len1, size1);
+	CHECK_VAL(data->payload4_len2, size2);
+	CHECK_VAL(data->total4, size1 + size2);
+	CHECK(memcmp(data->payload4, exp_str, size1 + size2), "content_check",
+	      "doesn't match!\n");
+
+	CHECK_VAL(bss->ret_bad_read, -EFAULT);
+	CHECK_VAL(data->payload_bad[0], 0x42);
+	CHECK_VAL(data->payload_bad[1], 0x42);
+	CHECK_VAL(data->payload_bad[2], 0);
+	CHECK_VAL(data->payload_bad[3], 0x42);
+	CHECK_VAL(data->payload_bad[4], 0x42);
+cleanup:
+	test_varlen__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/verif_stats.c b/tools/testing/selftests/bpf/prog_tests/verif_stats.c
new file mode 100644
index 000000000000..af4b95f57ac1
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verif_stats.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <test_progs.h>
+
+#include "trace_vprintk.lskel.h"
+
+void test_verif_stats(void)
+{
+	__u32 len = sizeof(struct bpf_prog_info);
+	struct trace_vprintk_lskel *skel;
+	struct bpf_prog_info info = {};
+	int err;
+
+	skel = trace_vprintk_lskel__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "trace_vprintk__open_and_load"))
+		goto cleanup;
+
+	err = bpf_prog_get_info_by_fd(skel->progs.sys_enter.prog_fd,
+				      &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto cleanup;
+
+	if (!ASSERT_GT(info.verified_insns, 0, "verified_insns"))
+		goto cleanup;
+
+cleanup:
+	trace_vprintk_lskel__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier.c b/tools/testing/selftests/bpf/prog_tests/verifier.c
new file mode 100644
index 000000000000..4b4b081b46cc
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verifier.c
@@ -0,0 +1,298 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <test_progs.h>
+
+#include "cap_helpers.h"
+#include "verifier_and.skel.h"
+#include "verifier_arena.skel.h"
+#include "verifier_arena_large.skel.h"
+#include "verifier_array_access.skel.h"
+#include "verifier_async_cb_context.skel.h"
+#include "verifier_basic_stack.skel.h"
+#include "verifier_bitfield_write.skel.h"
+#include "verifier_bounds.skel.h"
+#include "verifier_bounds_deduction.skel.h"
+#include "verifier_bounds_deduction_non_const.skel.h"
+#include "verifier_bounds_mix_sign_unsign.skel.h"
+#include "verifier_bpf_get_stack.skel.h"
+#include "verifier_bpf_trap.skel.h"
+#include "verifier_bswap.skel.h"
+#include "verifier_btf_ctx_access.skel.h"
+#include "verifier_btf_unreliable_prog.skel.h"
+#include "verifier_cfg.skel.h"
+#include "verifier_cgroup_inv_retcode.skel.h"
+#include "verifier_cgroup_skb.skel.h"
+#include "verifier_cgroup_storage.skel.h"
+#include "verifier_const.skel.h"
+#include "verifier_const_or.skel.h"
+#include "verifier_ctx.skel.h"
+#include "verifier_ctx_sk_msg.skel.h"
+#include "verifier_d_path.skel.h"
+#include "verifier_direct_packet_access.skel.h"
+#include "verifier_direct_stack_access_wraparound.skel.h"
+#include "verifier_div0.skel.h"
+#include "verifier_div_overflow.skel.h"
+#include "verifier_global_subprogs.skel.h"
+#include "verifier_global_ptr_args.skel.h"
+#include "verifier_gotol.skel.h"
+#include "verifier_gotox.skel.h"
+#include "verifier_helper_access_var_len.skel.h"
+#include "verifier_helper_packet_access.skel.h"
+#include "verifier_helper_restricted.skel.h"
+#include "verifier_helper_value_access.skel.h"
+#include "verifier_int_ptr.skel.h"
+#include "verifier_iterating_callbacks.skel.h"
+#include "verifier_jeq_infer_not_null.skel.h"
+#include "verifier_jit_convergence.skel.h"
+#include "verifier_ld_ind.skel.h"
+#include "verifier_ldsx.skel.h"
+#include "verifier_leak_ptr.skel.h"
+#include "verifier_linked_scalars.skel.h"
+#include "verifier_live_stack.skel.h"
+#include "verifier_load_acquire.skel.h"
+#include "verifier_loops1.skel.h"
+#include "verifier_lwt.skel.h"
+#include "verifier_map_in_map.skel.h"
+#include "verifier_map_ptr.skel.h"
+#include "verifier_map_ptr_mixing.skel.h"
+#include "verifier_map_ret_val.skel.h"
+#include "verifier_masking.skel.h"
+#include "verifier_may_goto_1.skel.h"
+#include "verifier_may_goto_2.skel.h"
+#include "verifier_meta_access.skel.h"
+#include "verifier_movsx.skel.h"
+#include "verifier_mtu.skel.h"
+#include "verifier_mul.skel.h"
+#include "verifier_netfilter_ctx.skel.h"
+#include "verifier_netfilter_retcode.skel.h"
+#include "verifier_bpf_fastcall.skel.h"
+#include "verifier_or_jmp32_k.skel.h"
+#include "verifier_precision.skel.h"
+#include "verifier_prevent_map_lookup.skel.h"
+#include "verifier_private_stack.skel.h"
+#include "verifier_raw_stack.skel.h"
+#include "verifier_raw_tp_writable.skel.h"
+#include "verifier_reg_equal.skel.h"
+#include "verifier_ref_tracking.skel.h"
+#include "verifier_regalloc.skel.h"
+#include "verifier_ringbuf.skel.h"
+#include "verifier_runtime_jit.skel.h"
+#include "verifier_scalar_ids.skel.h"
+#include "verifier_sdiv.skel.h"
+#include "verifier_search_pruning.skel.h"
+#include "verifier_sock.skel.h"
+#include "verifier_sock_addr.skel.h"
+#include "verifier_sockmap_mutate.skel.h"
+#include "verifier_spill_fill.skel.h"
+#include "verifier_spin_lock.skel.h"
+#include "verifier_stack_ptr.skel.h"
+#include "verifier_store_release.skel.h"
+#include "verifier_subprog_precision.skel.h"
+#include "verifier_subreg.skel.h"
+#include "verifier_tailcall.skel.h"
+#include "verifier_tailcall_jit.skel.h"
+#include "verifier_typedef.skel.h"
+#include "verifier_uninit.skel.h"
+#include "verifier_unpriv.skel.h"
+#include "verifier_unpriv_perf.skel.h"
+#include "verifier_value_adj_spill.skel.h"
+#include "verifier_value.skel.h"
+#include "verifier_value_illegal_alu.skel.h"
+#include "verifier_value_or_null.skel.h"
+#include "verifier_value_ptr_arith.skel.h"
+#include "verifier_var_off.skel.h"
+#include "verifier_vfs_accept.skel.h"
+#include "verifier_vfs_reject.skel.h"
+#include "verifier_xadd.skel.h"
+#include "verifier_xdp.skel.h"
+#include "verifier_xdp_direct_packet_access.skel.h"
+#include "verifier_bits_iter.skel.h"
+#include "verifier_lsm.skel.h"
+#include "irq.skel.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+__maybe_unused
+static void run_tests_aux(const char *skel_name,
+			  skel_elf_bytes_fn elf_bytes_factory,
+			  pre_execution_cb pre_execution_cb)
+{
+	struct test_loader tester = {};
+	__u64 old_caps;
+	int err;
+
+	/* test_verifier tests are executed w/o CAP_SYS_ADMIN, do the same here */
+	err = cap_disable_effective(1ULL << CAP_SYS_ADMIN, &old_caps);
+	if (err) {
+		PRINT_FAIL("failed to drop CAP_SYS_ADMIN: %i, %s\n", err, strerror(-err));
+		return;
+	}
+
+	test_loader__set_pre_execution_cb(&tester, pre_execution_cb);
+	test_loader__run_subtests(&tester, skel_name, elf_bytes_factory);
+	test_loader_fini(&tester);
+
+	err = cap_enable_effective(old_caps, NULL);
+	if (err)
+		PRINT_FAIL("failed to restore CAP_SYS_ADMIN: %i, %s\n", err, strerror(-err));
+}
+
+#define RUN(skel) run_tests_aux(#skel, skel##__elf_bytes, NULL)
+
+void test_verifier_and(void)                  { RUN(verifier_and); }
+void test_verifier_arena(void)                { RUN(verifier_arena); }
+void test_verifier_arena_large(void)          { RUN(verifier_arena_large); }
+void test_verifier_basic_stack(void)          { RUN(verifier_basic_stack); }
+void test_verifier_bitfield_write(void)       { RUN(verifier_bitfield_write); }
+void test_verifier_bounds(void)               { RUN(verifier_bounds); }
+void test_verifier_bounds_deduction(void)     { RUN(verifier_bounds_deduction); }
+void test_verifier_bounds_deduction_non_const(void)     { RUN(verifier_bounds_deduction_non_const); }
+void test_verifier_bounds_mix_sign_unsign(void) { RUN(verifier_bounds_mix_sign_unsign); }
+void test_verifier_bpf_get_stack(void)        { RUN(verifier_bpf_get_stack); }
+void test_verifier_bpf_trap(void)             { RUN(verifier_bpf_trap); }
+void test_verifier_bswap(void)                { RUN(verifier_bswap); }
+void test_verifier_btf_ctx_access(void)       { RUN(verifier_btf_ctx_access); }
+void test_verifier_btf_unreliable_prog(void)  { RUN(verifier_btf_unreliable_prog); }
+void test_verifier_cfg(void)                  { RUN(verifier_cfg); }
+void test_verifier_cgroup_inv_retcode(void)   { RUN(verifier_cgroup_inv_retcode); }
+void test_verifier_cgroup_skb(void)           { RUN(verifier_cgroup_skb); }
+void test_verifier_cgroup_storage(void)       { RUN(verifier_cgroup_storage); }
+void test_verifier_const(void)                { RUN(verifier_const); }
+void test_verifier_const_or(void)             { RUN(verifier_const_or); }
+void test_verifier_ctx(void)                  { RUN(verifier_ctx); }
+void test_verifier_ctx_sk_msg(void)           { RUN(verifier_ctx_sk_msg); }
+void test_verifier_d_path(void)               { RUN(verifier_d_path); }
+void test_verifier_direct_packet_access(void) { RUN(verifier_direct_packet_access); }
+void test_verifier_direct_stack_access_wraparound(void) { RUN(verifier_direct_stack_access_wraparound); }
+void test_verifier_div0(void)                 { RUN(verifier_div0); }
+void test_verifier_div_overflow(void)         { RUN(verifier_div_overflow); }
+void test_verifier_global_subprogs(void)      { RUN(verifier_global_subprogs); }
+void test_verifier_global_ptr_args(void)      { RUN(verifier_global_ptr_args); }
+void test_verifier_gotol(void)                { RUN(verifier_gotol); }
+void test_verifier_gotox(void)                { RUN(verifier_gotox); }
+void test_verifier_helper_access_var_len(void) { RUN(verifier_helper_access_var_len); }
+void test_verifier_helper_packet_access(void) { RUN(verifier_helper_packet_access); }
+void test_verifier_helper_restricted(void)    { RUN(verifier_helper_restricted); }
+void test_verifier_helper_value_access(void)  { RUN(verifier_helper_value_access); }
+void test_verifier_int_ptr(void)              { RUN(verifier_int_ptr); }
+void test_verifier_iterating_callbacks(void)  { RUN(verifier_iterating_callbacks); }
+void test_verifier_jeq_infer_not_null(void)   { RUN(verifier_jeq_infer_not_null); }
+void test_verifier_jit_convergence(void)      { RUN(verifier_jit_convergence); }
+void test_verifier_load_acquire(void)         { RUN(verifier_load_acquire); }
+void test_verifier_ld_ind(void)               { RUN(verifier_ld_ind); }
+void test_verifier_ldsx(void)                  { RUN(verifier_ldsx); }
+void test_verifier_leak_ptr(void)             { RUN(verifier_leak_ptr); }
+void test_verifier_linked_scalars(void)       { RUN(verifier_linked_scalars); }
+void test_verifier_live_stack(void)           { RUN(verifier_live_stack); }
+void test_verifier_loops1(void)               { RUN(verifier_loops1); }
+void test_verifier_lwt(void)                  { RUN(verifier_lwt); }
+void test_verifier_map_in_map(void)           { RUN(verifier_map_in_map); }
+void test_verifier_map_ptr(void)              { RUN(verifier_map_ptr); }
+void test_verifier_map_ptr_mixing(void)       { RUN(verifier_map_ptr_mixing); }
+void test_verifier_map_ret_val(void)          { RUN(verifier_map_ret_val); }
+void test_verifier_masking(void)              { RUN(verifier_masking); }
+void test_verifier_may_goto_1(void)           { RUN(verifier_may_goto_1); }
+void test_verifier_may_goto_2(void)           { RUN(verifier_may_goto_2); }
+void test_verifier_meta_access(void)          { RUN(verifier_meta_access); }
+void test_verifier_movsx(void)                 { RUN(verifier_movsx); }
+void test_verifier_mul(void)                  { RUN(verifier_mul); }
+void test_verifier_netfilter_ctx(void)        { RUN(verifier_netfilter_ctx); }
+void test_verifier_netfilter_retcode(void)    { RUN(verifier_netfilter_retcode); }
+void test_verifier_bpf_fastcall(void)         { RUN(verifier_bpf_fastcall); }
+void test_verifier_or_jmp32_k(void)           { RUN(verifier_or_jmp32_k); }
+void test_verifier_precision(void)            { RUN(verifier_precision); }
+void test_verifier_prevent_map_lookup(void)   { RUN(verifier_prevent_map_lookup); }
+void test_verifier_private_stack(void)        { RUN(verifier_private_stack); }
+void test_verifier_raw_stack(void)            { RUN(verifier_raw_stack); }
+void test_verifier_raw_tp_writable(void)      { RUN(verifier_raw_tp_writable); }
+void test_verifier_reg_equal(void)            { RUN(verifier_reg_equal); }
+void test_verifier_ref_tracking(void)         { RUN(verifier_ref_tracking); }
+void test_verifier_regalloc(void)             { RUN(verifier_regalloc); }
+void test_verifier_ringbuf(void)              { RUN(verifier_ringbuf); }
+void test_verifier_runtime_jit(void)          { RUN(verifier_runtime_jit); }
+void test_verifier_scalar_ids(void)           { RUN(verifier_scalar_ids); }
+void test_verifier_sdiv(void)                 { RUN(verifier_sdiv); }
+void test_verifier_search_pruning(void)       { RUN(verifier_search_pruning); }
+void test_verifier_sock(void)                 { RUN(verifier_sock); }
+void test_verifier_sock_addr(void)            { RUN(verifier_sock_addr); }
+void test_verifier_sockmap_mutate(void)       { RUN(verifier_sockmap_mutate); }
+void test_verifier_spill_fill(void)           { RUN(verifier_spill_fill); }
+void test_verifier_spin_lock(void)            { RUN(verifier_spin_lock); }
+void test_verifier_stack_ptr(void)            { RUN(verifier_stack_ptr); }
+void test_verifier_store_release(void)        { RUN(verifier_store_release); }
+void test_verifier_subprog_precision(void)    { RUN(verifier_subprog_precision); }
+void test_verifier_subreg(void)               { RUN(verifier_subreg); }
+void test_verifier_tailcall(void)             { RUN(verifier_tailcall); }
+void test_verifier_tailcall_jit(void)         { RUN(verifier_tailcall_jit); }
+void test_verifier_typedef(void)              { RUN(verifier_typedef); }
+void test_verifier_uninit(void)               { RUN(verifier_uninit); }
+void test_verifier_unpriv(void)               { RUN(verifier_unpriv); }
+void test_verifier_unpriv_perf(void)          { RUN(verifier_unpriv_perf); }
+void test_verifier_value_adj_spill(void)      { RUN(verifier_value_adj_spill); }
+void test_verifier_value(void)                { RUN(verifier_value); }
+void test_verifier_value_illegal_alu(void)    { RUN(verifier_value_illegal_alu); }
+void test_verifier_value_or_null(void)        { RUN(verifier_value_or_null); }
+void test_verifier_var_off(void)              { RUN(verifier_var_off); }
+void test_verifier_vfs_accept(void)	      { RUN(verifier_vfs_accept); }
+void test_verifier_vfs_reject(void)	      { RUN(verifier_vfs_reject); }
+void test_verifier_xadd(void)                 { RUN(verifier_xadd); }
+void test_verifier_xdp(void)                  { RUN(verifier_xdp); }
+void test_verifier_xdp_direct_packet_access(void) { RUN(verifier_xdp_direct_packet_access); }
+void test_verifier_bits_iter(void) { RUN(verifier_bits_iter); }
+void test_verifier_lsm(void)                  { RUN(verifier_lsm); }
+void test_irq(void)			      { RUN(irq); }
+void test_verifier_mtu(void)		      { RUN(verifier_mtu); }
+
+static int init_test_val_map(struct bpf_object *obj, char *map_name)
+{
+	struct test_val value = {
+		.index = (6 + 1) * sizeof(int),
+		.foo[6] = 0xabcdef12,
+	};
+	struct bpf_map *map;
+	int err, key = 0;
+
+	map = bpf_object__find_map_by_name(obj, map_name);
+	if (!map) {
+		PRINT_FAIL("Can't find map '%s'\n", map_name);
+		return -EINVAL;
+	}
+
+	err = bpf_map_update_elem(bpf_map__fd(map), &key, &value, 0);
+	if (err) {
+		PRINT_FAIL("Error while updating map '%s': %d\n", map_name, err);
+		return err;
+	}
+
+	return 0;
+}
+
+static int init_array_access_maps(struct bpf_object *obj)
+{
+	return init_test_val_map(obj, "map_array_ro");
+}
+
+void test_verifier_array_access(void)
+{
+	run_tests_aux("verifier_array_access",
+		      verifier_array_access__elf_bytes,
+		      init_array_access_maps);
+}
+void test_verifier_async_cb_context(void)    { RUN(verifier_async_cb_context); }
+
+static int init_value_ptr_arith_maps(struct bpf_object *obj)
+{
+	return init_test_val_map(obj, "map_array_48b");
+}
+
+void test_verifier_value_ptr_arith(void)
+{
+	run_tests_aux("verifier_value_ptr_arith",
+		      verifier_value_ptr_arith__elf_bytes,
+		      init_value_ptr_arith_maps);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c b/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c
new file mode 100644
index 000000000000..3918ecc2ee91
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verifier_kfunc_prog_types.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+
+#include "verifier_kfunc_prog_types.skel.h"
+
+void test_verifier_kfunc_prog_types(void)
+{
+	RUN_TESTS(verifier_kfunc_prog_types);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/verifier_log.c b/tools/testing/selftests/bpf/prog_tests/verifier_log.c
new file mode 100644
index 000000000000..8337c6bc5b95
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verifier_log.c
@@ -0,0 +1,450 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "test_log_buf.skel.h"
+
+
+static bool check_prog_load(int prog_fd, bool expect_err, const char *tag)
+{
+	if (expect_err) {
+		if (!ASSERT_LT(prog_fd, 0, tag)) {
+			close(prog_fd);
+			return false;
+		}
+	} else /* !expect_err */ {
+		if (!ASSERT_GT(prog_fd, 0, tag))
+			return false;
+	}
+	if (prog_fd >= 0)
+		close(prog_fd);
+	return true;
+}
+
+static struct {
+	/* strategically placed before others to avoid accidental modification by kernel */
+	char filler[1024];
+	char buf[1024];
+	/* strategically placed after buf[] to catch more accidental corruptions */
+	char reference[1024];
+} logs;
+static const struct bpf_insn *insns;
+static size_t insn_cnt;
+
+static int load_prog(struct bpf_prog_load_opts *opts, bool expect_load_error)
+{
+	int prog_fd;
+
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT, "log_prog",
+				"GPL", insns, insn_cnt, opts);
+	check_prog_load(prog_fd, expect_load_error, "prog_load");
+
+	return prog_fd;
+}
+
+static void verif_log_subtest(const char *name, bool expect_load_error, int log_level)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	char *exp_log, prog_name[16], op_name[32];
+	struct test_log_buf *skel;
+	struct bpf_program *prog;
+	size_t fixed_log_sz;
+	__u32 log_true_sz_fixed, log_true_sz_rolling;
+	int i, mode, err, prog_fd, res;
+
+	skel = test_log_buf__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	bpf_object__for_each_program(prog, skel->obj) {
+		if (strcmp(bpf_program__name(prog), name) == 0)
+			bpf_program__set_autoload(prog, true);
+		else
+			bpf_program__set_autoload(prog, false);
+	}
+
+	err = test_log_buf__load(skel);
+	if (!expect_load_error && !ASSERT_OK(err, "unexpected_load_failure"))
+		goto cleanup;
+	if (expect_load_error && !ASSERT_ERR(err, "unexpected_load_success"))
+		goto cleanup;
+
+	insns = bpf_program__insns(skel->progs.good_prog);
+	insn_cnt = bpf_program__insn_cnt(skel->progs.good_prog);
+
+	opts.log_buf = logs.reference;
+	opts.log_size = sizeof(logs.reference);
+	opts.log_level = log_level | 8 /* BPF_LOG_FIXED */;
+	load_prog(&opts, expect_load_error);
+
+	fixed_log_sz = strlen(logs.reference) + 1;
+	if (!ASSERT_GT(fixed_log_sz, 50, "fixed_log_sz"))
+		goto cleanup;
+	memset(logs.reference + fixed_log_sz, 0, sizeof(logs.reference) - fixed_log_sz);
+
+	/* validate BPF_LOG_FIXED works as verifier log used to work, that is:
+	 * we get -ENOSPC and beginning of the full verifier log. This only
+	 * works for log_level 2 and log_level 1 + failed program. For log
+	 * level 2 we don't reset log at all. For log_level 1 + failed program
+	 * we don't get to verification stats output. With log level 1
+	 * for successful program  final result will be just verifier stats.
+	 * But if provided too short log buf, kernel will NULL-out log->ubuf
+	 * and will stop emitting further log. This means we'll never see
+	 * predictable verifier stats.
+	 * Long story short, we do the following -ENOSPC test only for
+	 * predictable combinations.
+	 */
+	if (log_level >= 2 || expect_load_error) {
+		opts.log_buf = logs.buf;
+		opts.log_level = log_level | 8; /* fixed-length log */
+		opts.log_size = 25;
+
+		prog_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT, "log_fixed25",
+					"GPL", insns, insn_cnt, &opts);
+		if (!ASSERT_EQ(prog_fd, -ENOSPC, "unexpected_log_fixed_prog_load_result")) {
+			if (prog_fd >= 0)
+				close(prog_fd);
+			goto cleanup;
+		}
+		if (!ASSERT_EQ(strlen(logs.buf), 24, "log_fixed_25"))
+			goto cleanup;
+		if (!ASSERT_STRNEQ(logs.buf, logs.reference, 24, "log_fixed_contents_25"))
+			goto cleanup;
+	}
+
+	/* validate rolling verifier log logic: try all variations of log buf
+	 * length to force various truncation scenarios
+	 */
+	opts.log_buf = logs.buf;
+
+	/* rotating mode, then fixed mode */
+	for (mode = 1; mode >= 0; mode--) {
+		/* prefill logs.buf with 'A's to detect any write beyond allowed length */
+		memset(logs.filler, 'A', sizeof(logs.filler));
+		logs.filler[sizeof(logs.filler) - 1] = '\0';
+		memset(logs.buf, 'A', sizeof(logs.buf));
+		logs.buf[sizeof(logs.buf) - 1] = '\0';
+
+		for (i = 1; i < fixed_log_sz; i++) {
+			opts.log_size = i;
+			opts.log_level = log_level | (mode ? 0 : 8 /* BPF_LOG_FIXED */);
+
+			snprintf(prog_name, sizeof(prog_name),
+				 "log_%s_%d", mode ? "roll" : "fixed", i);
+			prog_fd = bpf_prog_load(BPF_PROG_TYPE_RAW_TRACEPOINT, prog_name,
+						"GPL", insns, insn_cnt, &opts);
+
+			snprintf(op_name, sizeof(op_name),
+				 "log_%s_prog_load_%d", mode ? "roll" : "fixed", i);
+			if (!ASSERT_EQ(prog_fd, -ENOSPC, op_name)) {
+				if (prog_fd >= 0)
+					close(prog_fd);
+				goto cleanup;
+			}
+
+			snprintf(op_name, sizeof(op_name),
+				 "log_%s_strlen_%d", mode ? "roll" : "fixed", i);
+			ASSERT_EQ(strlen(logs.buf), i - 1, op_name);
+
+			if (mode)
+				exp_log = logs.reference + fixed_log_sz - i;
+			else
+				exp_log = logs.reference;
+
+			snprintf(op_name, sizeof(op_name),
+				 "log_%s_contents_%d", mode ? "roll" : "fixed", i);
+			if (!ASSERT_STRNEQ(logs.buf, exp_log, i - 1, op_name)) {
+				printf("CMP:%d\nS1:'%s'\nS2:'%s'\n",
+					strncmp(logs.buf, exp_log, i - 1),
+					logs.buf, exp_log);
+				goto cleanup;
+			}
+
+			/* check that unused portions of logs.buf is not overwritten */
+			snprintf(op_name, sizeof(op_name),
+				 "log_%s_unused_%d", mode ? "roll" : "fixed", i);
+			if (!ASSERT_STREQ(logs.buf + i, logs.filler + i, op_name)) {
+				printf("CMP:%d\nS1:'%s'\nS2:'%s'\n",
+					strcmp(logs.buf + i, logs.filler + i),
+					logs.buf + i, logs.filler + i);
+				goto cleanup;
+			}
+		}
+	}
+
+	/* (FIXED) get actual log size */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level | 8; /* BPF_LOG_FIXED */
+	opts.log_size = sizeof(logs.buf);
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_fixed");
+
+	log_true_sz_fixed = opts.log_true_size;
+	ASSERT_GT(log_true_sz_fixed, 0, "log_true_sz_fixed");
+
+	/* (FIXED, NULL) get actual log size */
+	opts.log_buf = NULL;
+	opts.log_level = log_level | 8; /* BPF_LOG_FIXED */
+	opts.log_size = 0;
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_fixed_null");
+	ASSERT_EQ(opts.log_true_size, log_true_sz_fixed, "log_sz_fixed_null_eq");
+
+	/* (ROLLING) get actual log size */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level;
+	opts.log_size = sizeof(logs.buf);
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_rolling");
+
+	log_true_sz_rolling = opts.log_true_size;
+	ASSERT_EQ(log_true_sz_rolling, log_true_sz_fixed, "log_true_sz_eq");
+
+	/* (ROLLING, NULL) get actual log size */
+	opts.log_buf = NULL;
+	opts.log_level = log_level;
+	opts.log_size = 0;
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_rolling_null");
+	ASSERT_EQ(opts.log_true_size, log_true_sz_rolling, "log_true_sz_null_eq");
+
+	/* (FIXED) expect -ENOSPC for one byte short log */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level | 8; /* BPF_LOG_FIXED */
+	opts.log_size = log_true_sz_fixed - 1;
+	opts.log_true_size = 0;
+	res = load_prog(&opts, true /* should fail */);
+	ASSERT_EQ(res, -ENOSPC, "prog_load_res_too_short_fixed");
+
+	/* (FIXED) expect *not* -ENOSPC with exact log_true_size buffer */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level | 8; /* BPF_LOG_FIXED */
+	opts.log_size = log_true_sz_fixed;
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_just_right_fixed");
+
+	/* (ROLLING) expect -ENOSPC for one byte short log */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level;
+	opts.log_size = log_true_sz_rolling - 1;
+	res = load_prog(&opts, true /* should fail */);
+	ASSERT_EQ(res, -ENOSPC, "prog_load_res_too_short_rolling");
+
+	/* (ROLLING) expect *not* -ENOSPC with exact log_true_size buffer */
+	opts.log_buf = logs.buf;
+	opts.log_level = log_level;
+	opts.log_size = log_true_sz_rolling;
+	opts.log_true_size = 0;
+	res = load_prog(&opts, expect_load_error);
+	ASSERT_NEQ(res, -ENOSPC, "prog_load_res_just_right_rolling");
+
+cleanup:
+	test_log_buf__destroy(skel);
+}
+
+static const void *btf_data;
+static u32 btf_data_sz;
+
+static int load_btf(struct bpf_btf_load_opts *opts, bool expect_err)
+{
+	int fd;
+
+	fd = bpf_btf_load(btf_data, btf_data_sz, opts);
+	if (fd >= 0)
+		close(fd);
+	if (expect_err)
+		ASSERT_LT(fd, 0, "btf_load_failure");
+	else /* !expect_err */
+		ASSERT_GT(fd, 0, "btf_load_success");
+	return fd;
+}
+
+static void verif_btf_log_subtest(bool bad_btf)
+{
+	LIBBPF_OPTS(bpf_btf_load_opts, opts);
+	struct btf *btf;
+	struct btf_type *t;
+	char *exp_log, op_name[32];
+	size_t fixed_log_sz;
+	__u32 log_true_sz_fixed, log_true_sz_rolling;
+	int i, res;
+
+	/* prepare simple BTF contents */
+	btf = btf__new_empty();
+	if (!ASSERT_OK_PTR(btf, "btf_new_empty"))
+		return;
+	res = btf__add_int(btf, "whatever", 4, 0);
+	if (!ASSERT_GT(res, 0, "btf_add_int_id"))
+		goto cleanup;
+	if (bad_btf) {
+		/* btf__add_int() doesn't allow bad value of size, so we'll just
+		 * force-cast btf_type pointer and manually override size to invalid
+		 * 3 if we need to simulate failure
+		 */
+		t = (void *)btf__type_by_id(btf, res);
+		if (!ASSERT_OK_PTR(t, "int_btf_type"))
+			goto cleanup;
+		t->size = 3;
+	}
+
+	btf_data = btf__raw_data(btf, &btf_data_sz);
+	if (!ASSERT_OK_PTR(btf_data, "btf_data"))
+		goto cleanup;
+
+	load_btf(&opts, bad_btf);
+
+	opts.log_buf = logs.reference;
+	opts.log_size = sizeof(logs.reference);
+	opts.log_level = 1 | 8 /* BPF_LOG_FIXED */;
+	load_btf(&opts, bad_btf);
+
+	fixed_log_sz = strlen(logs.reference) + 1;
+	if (!ASSERT_GT(fixed_log_sz, 50, "fixed_log_sz"))
+		goto cleanup;
+	memset(logs.reference + fixed_log_sz, 0, sizeof(logs.reference) - fixed_log_sz);
+
+	/* validate BPF_LOG_FIXED truncation works as verifier log used to work */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1 | 8; /* fixed-length log */
+	opts.log_size = 25;
+	res = load_btf(&opts, true);
+	ASSERT_EQ(res, -ENOSPC, "half_log_fd");
+	ASSERT_EQ(strlen(logs.buf), 24, "log_fixed_25");
+	ASSERT_STRNEQ(logs.buf, logs.reference, 24, op_name);
+
+	/* validate rolling verifier log logic: try all variations of log buf
+	 * length to force various truncation scenarios
+	 */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1; /* rolling log */
+
+	/* prefill logs.buf with 'A's to detect any write beyond allowed length */
+	memset(logs.filler, 'A', sizeof(logs.filler));
+	logs.filler[sizeof(logs.filler) - 1] = '\0';
+	memset(logs.buf, 'A', sizeof(logs.buf));
+	logs.buf[sizeof(logs.buf) - 1] = '\0';
+
+	for (i = 1; i < fixed_log_sz; i++) {
+		opts.log_size = i;
+
+		snprintf(op_name, sizeof(op_name), "log_roll_btf_load_%d", i);
+		res = load_btf(&opts, true);
+		if (!ASSERT_EQ(res, -ENOSPC, op_name))
+			goto cleanup;
+
+		exp_log = logs.reference + fixed_log_sz - i;
+		snprintf(op_name, sizeof(op_name), "log_roll_contents_%d", i);
+		if (!ASSERT_STREQ(logs.buf, exp_log, op_name)) {
+			printf("CMP:%d\nS1:'%s'\nS2:'%s'\n",
+				strcmp(logs.buf, exp_log),
+				logs.buf, exp_log);
+			goto cleanup;
+		}
+
+		/* check that unused portions of logs.buf are not overwritten */
+		snprintf(op_name, sizeof(op_name), "log_roll_unused_tail_%d", i);
+		if (!ASSERT_STREQ(logs.buf + i, logs.filler + i, op_name)) {
+			printf("CMP:%d\nS1:'%s'\nS2:'%s'\n",
+				strcmp(logs.buf + i, logs.filler + i),
+				logs.buf + i, logs.filler + i);
+			goto cleanup;
+		}
+	}
+
+	/* (FIXED) get actual log size */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1 | 8; /* BPF_LOG_FIXED */
+	opts.log_size = sizeof(logs.buf);
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_fixed");
+
+	log_true_sz_fixed = opts.log_true_size;
+	ASSERT_GT(log_true_sz_fixed, 0, "log_true_sz_fixed");
+
+	/* (FIXED, NULL) get actual log size */
+	opts.log_buf = NULL;
+	opts.log_level = 1 | 8; /* BPF_LOG_FIXED */
+	opts.log_size = 0;
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_fixed_null");
+	ASSERT_EQ(opts.log_true_size, log_true_sz_fixed, "log_sz_fixed_null_eq");
+
+	/* (ROLLING) get actual log size */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1;
+	opts.log_size = sizeof(logs.buf);
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_rolling");
+
+	log_true_sz_rolling = opts.log_true_size;
+	ASSERT_EQ(log_true_sz_rolling, log_true_sz_fixed, "log_true_sz_eq");
+
+	/* (ROLLING, NULL) get actual log size */
+	opts.log_buf = NULL;
+	opts.log_level = 1;
+	opts.log_size = 0;
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_rolling_null");
+	ASSERT_EQ(opts.log_true_size, log_true_sz_rolling, "log_true_sz_null_eq");
+
+	/* (FIXED) expect -ENOSPC for one byte short log */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1 | 8; /* BPF_LOG_FIXED */
+	opts.log_size = log_true_sz_fixed - 1;
+	opts.log_true_size = 0;
+	res = load_btf(&opts, true);
+	ASSERT_EQ(res, -ENOSPC, "btf_load_res_too_short_fixed");
+
+	/* (FIXED) expect *not* -ENOSPC with exact log_true_size buffer */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1 | 8; /* BPF_LOG_FIXED */
+	opts.log_size = log_true_sz_fixed;
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_just_right_fixed");
+
+	/* (ROLLING) expect -ENOSPC for one byte short log */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1;
+	opts.log_size = log_true_sz_rolling - 1;
+	res = load_btf(&opts, true);
+	ASSERT_EQ(res, -ENOSPC, "btf_load_res_too_short_rolling");
+
+	/* (ROLLING) expect *not* -ENOSPC with exact log_true_size buffer */
+	opts.log_buf = logs.buf;
+	opts.log_level = 1;
+	opts.log_size = log_true_sz_rolling;
+	opts.log_true_size = 0;
+	res = load_btf(&opts, bad_btf);
+	ASSERT_NEQ(res, -ENOSPC, "btf_load_res_just_right_rolling");
+
+cleanup:
+	btf__free(btf);
+}
+
+void test_verifier_log(void)
+{
+	if (test__start_subtest("good_prog-level1"))
+		verif_log_subtest("good_prog", false, 1);
+	if (test__start_subtest("good_prog-level2"))
+		verif_log_subtest("good_prog", false, 2);
+	if (test__start_subtest("bad_prog-level1"))
+		verif_log_subtest("bad_prog", true, 1);
+	if (test__start_subtest("bad_prog-level2"))
+		verif_log_subtest("bad_prog", true, 2);
+	if (test__start_subtest("bad_btf"))
+		verif_btf_log_subtest(true /* bad btf */);
+	if (test__start_subtest("good_btf"))
+		verif_btf_log_subtest(false /* !bad btf */);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/verify_pkcs7_sig.c b/tools/testing/selftests/bpf/prog_tests/verify_pkcs7_sig.c
new file mode 100644
index 000000000000..4d69d9d55e17
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/verify_pkcs7_sig.c
@@ -0,0 +1,565 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <endian.h>
+#include <limits.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <linux/keyctl.h>
+#include <sys/xattr.h>
+#include <linux/fsverity.h>
+#include <test_progs.h>
+
+#include "test_verify_pkcs7_sig.skel.h"
+#include "test_sig_in_xattr.skel.h"
+
+#define MAX_DATA_SIZE (1024 * 1024)
+#define MAX_SIG_SIZE 1024
+
+#define VERIFY_USE_SECONDARY_KEYRING (1UL)
+#define VERIFY_USE_PLATFORM_KEYRING  (2UL)
+
+#ifndef SHA256_DIGEST_SIZE
+#define SHA256_DIGEST_SIZE      32
+#endif
+
+/* In stripped ARM and x86-64 modules, ~ is surprisingly rare. */
+#define MODULE_SIG_STRING "~Module signature appended~\n"
+
+/*
+ * Module signature information block.
+ *
+ * The constituents of the signature section are, in order:
+ *
+ *	- Signer's name
+ *	- Key identifier
+ *	- Signature data
+ *	- Information block
+ */
+struct module_signature {
+	__u8	algo;		/* Public-key crypto algorithm [0] */
+	__u8	hash;		/* Digest algorithm [0] */
+	__u8	id_type;	/* Key identifier type [PKEY_ID_PKCS7] */
+	__u8	signer_len;	/* Length of signer's name [0] */
+	__u8	key_id_len;	/* Length of key identifier [0] */
+	__u8	__pad[3];
+	__be32	sig_len;	/* Length of signature data */
+};
+
+struct data {
+	__u8 data[MAX_DATA_SIZE];
+	__u32 data_len;
+	__u8 sig[MAX_SIG_SIZE];
+	__u32 sig_len;
+};
+
+static bool kfunc_not_supported;
+
+static int libbpf_print_cb(enum libbpf_print_level level, const char *fmt,
+			   va_list args)
+{
+	if (level == LIBBPF_WARN)
+		vprintf(fmt, args);
+
+	if (strcmp(fmt, "libbpf: extern (func ksym) '%s': not found in kernel or module BTFs\n"))
+		return 0;
+
+	if (strcmp(va_arg(args, char *), "bpf_verify_pkcs7_signature"))
+		return 0;
+
+	kfunc_not_supported = true;
+	return 0;
+}
+
+static int _run_setup_process(const char *setup_dir, const char *cmd)
+{
+	int child_pid, child_status;
+
+	child_pid = fork();
+	if (child_pid == 0) {
+		execlp("./verify_sig_setup.sh", "./verify_sig_setup.sh", cmd,
+		       setup_dir, NULL);
+		exit(errno);
+
+	} else if (child_pid > 0) {
+		waitpid(child_pid, &child_status, 0);
+		return WEXITSTATUS(child_status);
+	}
+
+	return -EINVAL;
+}
+
+static int populate_data_item_str(const char *tmp_dir, struct data *data_item)
+{
+	struct stat st;
+	char data_template[] = "/tmp/dataXXXXXX";
+	char path[PATH_MAX];
+	int ret, fd, child_status, child_pid;
+
+	data_item->data_len = 4;
+	memcpy(data_item->data, "test", data_item->data_len);
+
+	fd = mkstemp(data_template);
+	if (fd == -1)
+		return -errno;
+
+	ret = write(fd, data_item->data, data_item->data_len);
+
+	close(fd);
+
+	if (ret != data_item->data_len) {
+		ret = -EIO;
+		goto out;
+	}
+
+	child_pid = fork();
+
+	if (child_pid == -1) {
+		ret = -errno;
+		goto out;
+	}
+
+	if (child_pid == 0) {
+		snprintf(path, sizeof(path), "%s/signing_key.pem", tmp_dir);
+
+		return execlp("./sign-file", "./sign-file", "-d", "sha256",
+			      path, path, data_template, NULL);
+	}
+
+	waitpid(child_pid, &child_status, 0);
+
+	ret = WEXITSTATUS(child_status);
+	if (ret)
+		goto out;
+
+	snprintf(path, sizeof(path), "%s.p7s", data_template);
+
+	ret = stat(path, &st);
+	if (ret == -1) {
+		ret = -errno;
+		goto out;
+	}
+
+	if (st.st_size > sizeof(data_item->sig)) {
+		ret = -EINVAL;
+		goto out_sig;
+	}
+
+	data_item->sig_len = st.st_size;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1) {
+		ret = -errno;
+		goto out_sig;
+	}
+
+	ret = read(fd, data_item->sig, data_item->sig_len);
+
+	close(fd);
+
+	if (ret != data_item->sig_len) {
+		ret = -EIO;
+		goto out_sig;
+	}
+
+	ret = 0;
+out_sig:
+	unlink(path);
+out:
+	unlink(data_template);
+	return ret;
+}
+
+static int populate_data_item_mod(struct data *data_item)
+{
+	char mod_path[PATH_MAX], *mod_path_ptr;
+	struct stat st;
+	void *mod;
+	FILE *fp;
+	struct module_signature ms;
+	int ret, fd, modlen, marker_len, sig_len;
+
+	data_item->data_len = 0;
+
+	if (stat("/lib/modules", &st) == -1)
+		return 0;
+
+	/* Requires CONFIG_TCP_CONG_BIC=m. */
+	fp = popen("find /lib/modules/$(uname -r) -name tcp_bic.ko", "r");
+	if (!fp)
+		return 0;
+
+	mod_path_ptr = fgets(mod_path, sizeof(mod_path), fp);
+	pclose(fp);
+
+	if (!mod_path_ptr)
+		return 0;
+
+	mod_path_ptr = strchr(mod_path, '\n');
+	if (!mod_path_ptr)
+		return 0;
+
+	*mod_path_ptr = '\0';
+
+	if (stat(mod_path, &st) == -1)
+		return 0;
+
+	modlen = st.st_size;
+	marker_len = sizeof(MODULE_SIG_STRING) - 1;
+
+	fd = open(mod_path, O_RDONLY);
+	if (fd == -1)
+		return -errno;
+
+	mod = mmap(NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+
+	close(fd);
+
+	if (mod == MAP_FAILED)
+		return -errno;
+
+	if (strncmp(mod + modlen - marker_len, MODULE_SIG_STRING, marker_len)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	modlen -= marker_len;
+
+	memcpy(&ms, mod + (modlen - sizeof(ms)), sizeof(ms));
+
+	sig_len = __be32_to_cpu(ms.sig_len);
+	modlen -= sig_len + sizeof(ms);
+
+	if (modlen > sizeof(data_item->data)) {
+		ret = -E2BIG;
+		goto out;
+	}
+
+	memcpy(data_item->data, mod, modlen);
+	data_item->data_len = modlen;
+
+	if (sig_len > sizeof(data_item->sig)) {
+		ret = -E2BIG;
+		goto out;
+	}
+
+	memcpy(data_item->sig, mod + modlen, sig_len);
+	data_item->sig_len = sig_len;
+	ret = 0;
+out:
+	munmap(mod, st.st_size);
+	return ret;
+}
+
+static void test_verify_pkcs7_sig_from_map(void)
+{
+	libbpf_print_fn_t old_print_cb;
+	char tmp_dir_template[] = "/tmp/verify_sigXXXXXX";
+	char *tmp_dir;
+	struct test_verify_pkcs7_sig *skel = NULL;
+	struct bpf_map *map;
+	struct data data = {};
+	int ret, zero = 0;
+
+	/* Trigger creation of session keyring. */
+	syscall(__NR_request_key, "keyring", "_uid.0", NULL,
+		KEY_SPEC_SESSION_KEYRING);
+
+	tmp_dir = mkdtemp(tmp_dir_template);
+	if (!ASSERT_OK_PTR(tmp_dir, "mkdtemp"))
+		return;
+
+	ret = _run_setup_process(tmp_dir, "setup");
+	if (!ASSERT_OK(ret, "_run_setup_process"))
+		goto close_prog;
+
+	skel = test_verify_pkcs7_sig__open();
+	if (!ASSERT_OK_PTR(skel, "test_verify_pkcs7_sig__open"))
+		goto close_prog;
+
+	old_print_cb = libbpf_set_print(libbpf_print_cb);
+	ret = test_verify_pkcs7_sig__load(skel);
+	libbpf_set_print(old_print_cb);
+
+	if (ret < 0 && kfunc_not_supported) {
+		printf(
+		  "%s:SKIP:bpf_verify_pkcs7_signature() kfunc not supported\n",
+		  __func__);
+		test__skip();
+		goto close_prog;
+	}
+
+	if (!ASSERT_OK(ret, "test_verify_pkcs7_sig__load"))
+		goto close_prog;
+
+	ret = test_verify_pkcs7_sig__attach(skel);
+	if (!ASSERT_OK(ret, "test_verify_pkcs7_sig__attach"))
+		goto close_prog;
+
+	map = bpf_object__find_map_by_name(skel->obj, "data_input");
+	if (!ASSERT_OK_PTR(map, "data_input not found"))
+		goto close_prog;
+
+	skel->bss->monitored_pid = getpid();
+
+	/* Test without data and signature. */
+	skel->bss->user_keyring_serial = KEY_SPEC_SESSION_KEYRING;
+
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_LT(ret, 0, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	/* Test successful signature verification with session keyring. */
+	ret = populate_data_item_str(tmp_dir, &data);
+	if (!ASSERT_OK(ret, "populate_data_item_str"))
+		goto close_prog;
+
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_OK(ret, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	/* Test successful signature verification with testing keyring. */
+	skel->bss->user_keyring_serial = syscall(__NR_request_key, "keyring",
+						 "ebpf_testing_keyring", NULL,
+						 KEY_SPEC_SESSION_KEYRING);
+
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_OK(ret, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	/*
+	 * Ensure key_task_permission() is called and rejects the keyring
+	 * (no Search permission).
+	 */
+	syscall(__NR_keyctl, KEYCTL_SETPERM, skel->bss->user_keyring_serial,
+		0x37373737);
+
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_LT(ret, 0, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	syscall(__NR_keyctl, KEYCTL_SETPERM, skel->bss->user_keyring_serial,
+		0x3f3f3f3f);
+
+	/*
+	 * Ensure key_validate() is called and rejects the keyring (key expired)
+	 */
+	syscall(__NR_keyctl, KEYCTL_SET_TIMEOUT,
+		skel->bss->user_keyring_serial, 1);
+	sleep(1);
+
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_LT(ret, 0, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	skel->bss->user_keyring_serial = KEY_SPEC_SESSION_KEYRING;
+
+	/* Test with corrupted data (signature verification should fail). */
+	data.data[0] = 'a';
+	ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data, BPF_ANY);
+	if (!ASSERT_LT(ret, 0, "bpf_map_update_elem data_input"))
+		goto close_prog;
+
+	ret = populate_data_item_mod(&data);
+	if (!ASSERT_OK(ret, "populate_data_item_mod"))
+		goto close_prog;
+
+	/* Test signature verification with system keyrings. */
+	if (data.data_len) {
+		skel->bss->user_keyring_serial = 0;
+		skel->bss->system_keyring_id = 0;
+
+		ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data,
+					  BPF_ANY);
+		if (!ASSERT_OK(ret, "bpf_map_update_elem data_input"))
+			goto close_prog;
+
+		skel->bss->system_keyring_id = VERIFY_USE_SECONDARY_KEYRING;
+
+		ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data,
+					  BPF_ANY);
+		if (!ASSERT_OK(ret, "bpf_map_update_elem data_input"))
+			goto close_prog;
+
+		skel->bss->system_keyring_id = VERIFY_USE_PLATFORM_KEYRING;
+
+		ret = bpf_map_update_elem(bpf_map__fd(map), &zero, &data,
+					  BPF_ANY);
+		ASSERT_LT(ret, 0, "bpf_map_update_elem data_input");
+	}
+
+close_prog:
+	_run_setup_process(tmp_dir, "cleanup");
+
+	if (!skel)
+		return;
+
+	skel->bss->monitored_pid = 0;
+	test_verify_pkcs7_sig__destroy(skel);
+}
+
+static int get_signature_size(const char *sig_path)
+{
+	struct stat st;
+
+	if (stat(sig_path, &st) == -1)
+		return -1;
+
+	return st.st_size;
+}
+
+static int add_signature_to_xattr(const char *data_path, const char *sig_path)
+{
+	char sig[MAX_SIG_SIZE] = {0};
+	int fd, size, ret;
+
+	if (sig_path) {
+		fd = open(sig_path, O_RDONLY);
+		if (fd < 0)
+			return -1;
+
+		size = read(fd, sig, MAX_SIG_SIZE);
+		close(fd);
+		if (size <= 0)
+			return -1;
+	} else {
+		/* no sig_path, just write 32 bytes of zeros */
+		size = 32;
+	}
+	ret = setxattr(data_path, "user.sig", sig, size, 0);
+	if (!ASSERT_OK(ret, "setxattr"))
+		return -1;
+
+	return 0;
+}
+
+static int test_open_file(struct test_sig_in_xattr *skel, char *data_path,
+			  pid_t pid, bool should_success, char *name)
+{
+	int ret;
+
+	skel->bss->monitored_pid = pid;
+	ret = open(data_path, O_RDONLY);
+	close(ret);
+	skel->bss->monitored_pid = 0;
+
+	if (should_success) {
+		if (!ASSERT_GE(ret, 0, name))
+			return -1;
+	} else {
+		if (!ASSERT_LT(ret, 0, name))
+			return -1;
+	}
+	return 0;
+}
+
+static void test_pkcs7_sig_fsverity(void)
+{
+	char data_path[PATH_MAX];
+	char sig_path[PATH_MAX];
+	char tmp_dir_template[] = "/tmp/verify_sigXXXXXX";
+	char *tmp_dir;
+	struct test_sig_in_xattr *skel = NULL;
+	pid_t pid;
+	int ret;
+
+	tmp_dir = mkdtemp(tmp_dir_template);
+	if (!ASSERT_OK_PTR(tmp_dir, "mkdtemp"))
+		return;
+
+	snprintf(data_path, PATH_MAX, "%s/data-file", tmp_dir);
+	snprintf(sig_path, PATH_MAX, "%s/sig-file", tmp_dir);
+
+	ret = _run_setup_process(tmp_dir, "setup");
+	if (!ASSERT_OK(ret, "_run_setup_process"))
+		goto out;
+
+	ret = _run_setup_process(tmp_dir, "fsverity-create-sign");
+
+	if (ret) {
+		printf("%s: SKIP: fsverity [sign|enable] doesn't work.\n"
+		       "To run this test, try enable CONFIG_FS_VERITY and enable FSVerity for the filesystem.\n",
+		       __func__);
+		test__skip();
+		goto out;
+	}
+
+	skel = test_sig_in_xattr__open();
+	if (!ASSERT_OK_PTR(skel, "test_sig_in_xattr__open"))
+		goto out;
+	ret = get_signature_size(sig_path);
+	if (!ASSERT_GT(ret, 0, "get_signature_size"))
+		goto out;
+	skel->bss->sig_size = ret;
+	skel->bss->user_keyring_serial = syscall(__NR_request_key, "keyring",
+						 "ebpf_testing_keyring", NULL,
+						 KEY_SPEC_SESSION_KEYRING);
+	memcpy(skel->bss->digest, "FSVerity", 8);
+
+	ret = test_sig_in_xattr__load(skel);
+	if (!ASSERT_OK(ret, "test_sig_in_xattr__load"))
+		goto out;
+
+	ret = test_sig_in_xattr__attach(skel);
+	if (!ASSERT_OK(ret, "test_sig_in_xattr__attach"))
+		goto out;
+
+	pid = getpid();
+
+	/* Case 1: fsverity is not enabled, open should succeed */
+	if (test_open_file(skel, data_path, pid, true, "open_1"))
+		goto out;
+
+	/* Case 2: fsverity is enabled, xattr is missing, open should
+	 * fail
+	 */
+	ret = _run_setup_process(tmp_dir, "fsverity-enable");
+	if (!ASSERT_OK(ret, "fsverity-enable"))
+		goto out;
+	if (test_open_file(skel, data_path, pid, false, "open_2"))
+		goto out;
+
+	/* Case 3: fsverity is enabled, xattr has valid signature, open
+	 * should succeed
+	 */
+	ret = add_signature_to_xattr(data_path, sig_path);
+	if (!ASSERT_OK(ret, "add_signature_to_xattr_1"))
+		goto out;
+
+	if (test_open_file(skel, data_path, pid, true, "open_3"))
+		goto out;
+
+	/* Case 4: fsverity is enabled, xattr has invalid signature, open
+	 * should fail
+	 */
+	ret = add_signature_to_xattr(data_path, NULL);
+	if (!ASSERT_OK(ret, "add_signature_to_xattr_2"))
+		goto out;
+	test_open_file(skel, data_path, pid, false, "open_4");
+
+out:
+	_run_setup_process(tmp_dir, "cleanup");
+	if (!skel)
+		return;
+
+	skel->bss->monitored_pid = 0;
+	test_sig_in_xattr__destroy(skel);
+}
+
+void test_verify_pkcs7_sig(void)
+{
+	if (test__start_subtest("pkcs7_sig_from_map"))
+		test_verify_pkcs7_sig_from_map();
+	if (test__start_subtest("pkcs7_sig_fsverity"))
+		test_pkcs7_sig_fsverity();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/vmlinux.c b/tools/testing/selftests/bpf/prog_tests/vmlinux.c
new file mode 100644
index 000000000000..6fb2217d940b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/vmlinux.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <test_progs.h>
+#include <time.h>
+#include "test_vmlinux.skel.h"
+
+#define MY_TV_NSEC 1337
+
+static void nsleep()
+{
+	struct timespec ts = { .tv_nsec = MY_TV_NSEC };
+
+	(void)syscall(__NR_nanosleep, &ts, NULL);
+}
+
+void test_vmlinux(void)
+{
+	int err;
+	struct test_vmlinux* skel;
+	struct test_vmlinux__bss *bss;
+
+	skel = test_vmlinux__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_vmlinux__open_and_load"))
+		return;
+	bss = skel->bss;
+
+	err = test_vmlinux__attach(skel);
+	if (!ASSERT_OK(err, "test_vmlinux__attach"))
+		goto cleanup;
+
+	/* trigger everything */
+	nsleep();
+
+	ASSERT_TRUE(bss->tp_called, "tp");
+	ASSERT_TRUE(bss->raw_tp_called, "raw_tp");
+	ASSERT_TRUE(bss->tp_btf_called, "tp_btf");
+	ASSERT_TRUE(bss->kprobe_called, "kprobe");
+	ASSERT_TRUE(bss->fentry_called, "fentry");
+
+cleanup:
+	test_vmlinux__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c b/tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c
new file mode 100644
index 000000000000..2a5e207edad6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/vrf_socket_lookup.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * Topology:
+ * ---------
+ *     NS0 namespace         |   NS1 namespace
+ *			     |
+ *     +--------------+      |   +--------------+
+ *     |    veth01    |----------|    veth10    |
+ *     | 172.16.1.100 |      |   | 172.16.1.200 |
+ *     |     bpf      |      |   +--------------+
+ *     +--------------+      |
+ *      server(UDP/TCP)      |
+ *  +-------------------+    |
+ *  |        vrf1       |    |
+ *  |  +--------------+ |    |   +--------------+
+ *  |  |    veth02    |----------|    veth20    |
+ *  |  | 172.16.2.100 | |    |   | 172.16.2.200 |
+ *  |  |     bpf      | |    |   +--------------+
+ *  |  +--------------+ |    |
+ *  |   server(UDP/TCP) |    |
+ *  +-------------------+    |
+ *
+ * Test flow
+ * -----------
+ *  The tests verifies that socket lookup via TC is VRF aware:
+ *  1) Creates two veth pairs between NS0 and NS1:
+ *     a) veth01 <-> veth10 outside the VRF
+ *     b) veth02 <-> veth20 in the VRF
+ *  2) Attaches to veth01 and veth02 a program that calls:
+ *     a) bpf_skc_lookup_tcp() with TCP and tcp_skc is true
+ *     b) bpf_sk_lookup_tcp() with TCP and tcp_skc is false
+ *     c) bpf_sk_lookup_udp() with UDP
+ *     The program stores the lookup result in bss->lookup_status.
+ *  3) Creates a socket TCP/UDP server in/outside the VRF.
+ *  4) The test expects lookup_status to be:
+ *     a) 0 from device in VRF to server outside VRF
+ *     b) 0 from device outside VRF to server in VRF
+ *     c) 1 from device in VRF to server in VRF
+ *     d) 1 from device outside VRF to server outside VRF
+ */
+
+#include <net/if.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "vrf_socket_lookup.skel.h"
+
+#define NS0 "vrf_socket_lookup_0"
+#define NS1 "vrf_socket_lookup_1"
+
+#define IP4_ADDR_VETH01 "172.16.1.100"
+#define IP4_ADDR_VETH10 "172.16.1.200"
+#define IP4_ADDR_VETH02 "172.16.2.100"
+#define IP4_ADDR_VETH20 "172.16.2.200"
+
+#define NON_VRF_PORT 5000
+#define IN_VRF_PORT 5001
+
+#define TIMEOUT_MS 3000
+
+static int make_socket(int sotype, const char *ip, int port,
+		       struct sockaddr_storage *addr)
+{
+	int err, fd;
+
+	err = make_sockaddr(AF_INET, ip, port, addr, NULL);
+	if (!ASSERT_OK(err, "make_address"))
+		return -1;
+
+	fd = socket(AF_INET, sotype, 0);
+	if (!ASSERT_GE(fd, 0, "socket"))
+		return -1;
+
+	if (!ASSERT_OK(settimeo(fd, TIMEOUT_MS), "settimeo"))
+		goto fail;
+
+	return fd;
+fail:
+	close(fd);
+	return -1;
+}
+
+static int make_server(int sotype, const char *ip, int port, const char *ifname)
+{
+	int err, fd = -1;
+
+	fd = start_server(AF_INET, sotype, ip, port, TIMEOUT_MS);
+	if (!ASSERT_GE(fd, 0, "start_server"))
+		return -1;
+
+	if (ifname) {
+		err = setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
+				 ifname, strlen(ifname) + 1);
+		if (!ASSERT_OK(err, "setsockopt(SO_BINDTODEVICE)"))
+			goto fail;
+	}
+
+	return fd;
+fail:
+	close(fd);
+	return -1;
+}
+
+static int attach_progs(char *ifname, int tc_prog_fd, int xdp_prog_fd)
+{
+	LIBBPF_OPTS(bpf_tc_hook, hook, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1,
+		    .prog_fd = tc_prog_fd);
+	int ret, ifindex;
+
+	ifindex = if_nametoindex(ifname);
+	if (!ASSERT_NEQ(ifindex, 0, "if_nametoindex"))
+		return -1;
+	hook.ifindex = ifindex;
+
+	ret = bpf_tc_hook_create(&hook);
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		return ret;
+
+	ret = bpf_tc_attach(&hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+		bpf_tc_hook_destroy(&hook);
+		return ret;
+	}
+	ret = bpf_xdp_attach(ifindex, xdp_prog_fd, 0, NULL);
+	if (!ASSERT_OK(ret, "bpf_xdp_attach")) {
+		bpf_tc_hook_destroy(&hook);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void cleanup(void)
+{
+	SYS_NOFAIL("test -f /var/run/netns/" NS0 " && ip netns delete "
+		   NS0);
+	SYS_NOFAIL("test -f /var/run/netns/" NS1 " && ip netns delete "
+		   NS1);
+}
+
+static int setup(struct vrf_socket_lookup *skel)
+{
+	int tc_prog_fd, xdp_prog_fd, ret = 0;
+	struct nstoken *nstoken = NULL;
+
+	SYS(fail, "ip netns add " NS0);
+	SYS(fail, "ip netns add " NS1);
+
+	/* NS0 <-> NS1 [veth01 <-> veth10] */
+	SYS(fail, "ip link add veth01 netns " NS0 " type veth peer name veth10"
+	    " netns " NS1);
+	SYS(fail, "ip -net " NS0 " addr add " IP4_ADDR_VETH01 "/24 dev veth01");
+	SYS(fail, "ip -net " NS0 " link set dev veth01 up");
+	SYS(fail, "ip -net " NS1 " addr add " IP4_ADDR_VETH10 "/24 dev veth10");
+	SYS(fail, "ip -net " NS1 " link set dev veth10 up");
+
+	/* NS0 <-> NS1 [veth02 <-> veth20] */
+	SYS(fail, "ip link add veth02 netns " NS0 " type veth peer name veth20"
+	    " netns " NS1);
+	SYS(fail, "ip -net " NS0 " addr add " IP4_ADDR_VETH02 "/24 dev veth02");
+	SYS(fail, "ip -net " NS0 " link set dev veth02 up");
+	SYS(fail, "ip -net " NS1 " addr add " IP4_ADDR_VETH20 "/24 dev veth20");
+	SYS(fail, "ip -net " NS1 " link set dev veth20 up");
+
+	/* veth02 -> vrf1  */
+	SYS(fail, "ip -net " NS0 " link add vrf1 type vrf table 11");
+	SYS(fail, "ip -net " NS0 " route add vrf vrf1 unreachable default"
+	    " metric 4278198272");
+	SYS(fail, "ip -net " NS0 " link set vrf1 alias vrf");
+	SYS(fail, "ip -net " NS0 " link set vrf1 up");
+	SYS(fail, "ip -net " NS0 " link set veth02 master vrf1");
+
+	/* Attach TC and XDP progs to veth devices in NS0 */
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS0))
+		goto fail;
+	tc_prog_fd = bpf_program__fd(skel->progs.tc_socket_lookup);
+	if (!ASSERT_GE(tc_prog_fd, 0, "bpf_program__tc_fd"))
+		goto fail;
+	xdp_prog_fd = bpf_program__fd(skel->progs.xdp_socket_lookup);
+	if (!ASSERT_GE(xdp_prog_fd, 0, "bpf_program__xdp_fd"))
+		goto fail;
+
+	if (attach_progs("veth01", tc_prog_fd, xdp_prog_fd))
+		goto fail;
+
+	if (attach_progs("veth02", tc_prog_fd, xdp_prog_fd))
+		goto fail;
+
+	goto close;
+fail:
+	ret = -1;
+close:
+	if (nstoken)
+		close_netns(nstoken);
+	return ret;
+}
+
+static int test_lookup(struct vrf_socket_lookup *skel, int sotype,
+		       const char *ip, int port, bool test_xdp, bool tcp_skc,
+		       int lookup_status_exp)
+{
+	static const char msg[] = "Hello Server";
+	struct sockaddr_storage addr = {};
+	int fd, ret = 0;
+
+	fd = make_socket(sotype, ip, port, &addr);
+	if (fd < 0)
+		return -1;
+
+	skel->bss->test_xdp = test_xdp;
+	skel->bss->tcp_skc = tcp_skc;
+	skel->bss->lookup_status = -1;
+
+	if (sotype == SOCK_STREAM)
+		connect(fd, (void *)&addr, sizeof(struct sockaddr_in));
+	else
+		sendto(fd, msg, sizeof(msg), 0, (void *)&addr,
+		       sizeof(struct sockaddr_in));
+
+	if (!ASSERT_EQ(skel->bss->lookup_status, lookup_status_exp,
+		       "lookup_status"))
+		goto fail;
+
+	goto close;
+
+fail:
+	ret = -1;
+close:
+	close(fd);
+	return ret;
+}
+
+static void _test_vrf_socket_lookup(struct vrf_socket_lookup *skel, int sotype,
+				    bool test_xdp, bool tcp_skc)
+{
+	int in_vrf_server = -1, non_vrf_server = -1;
+	struct nstoken *nstoken = NULL;
+
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS0))
+		goto done;
+
+	/* Open sockets in and outside VRF */
+	non_vrf_server = make_server(sotype, "0.0.0.0", NON_VRF_PORT, NULL);
+	if (!ASSERT_GE(non_vrf_server, 0, "make_server__outside_vrf_fd"))
+		goto done;
+
+	in_vrf_server = make_server(sotype, "0.0.0.0", IN_VRF_PORT, "veth02");
+	if (!ASSERT_GE(in_vrf_server, 0, "make_server__in_vrf_fd"))
+		goto done;
+
+	/* Perform test from NS1 */
+	close_netns(nstoken);
+	nstoken = open_netns(NS1);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS1))
+		goto done;
+
+	if (!ASSERT_OK(test_lookup(skel, sotype, IP4_ADDR_VETH02, NON_VRF_PORT,
+				   test_xdp, tcp_skc, 0), "in_to_out"))
+		goto done;
+	if (!ASSERT_OK(test_lookup(skel, sotype, IP4_ADDR_VETH02, IN_VRF_PORT,
+				   test_xdp, tcp_skc, 1), "in_to_in"))
+		goto done;
+	if (!ASSERT_OK(test_lookup(skel, sotype, IP4_ADDR_VETH01, NON_VRF_PORT,
+				   test_xdp, tcp_skc, 1), "out_to_out"))
+		goto done;
+	if (!ASSERT_OK(test_lookup(skel, sotype, IP4_ADDR_VETH01, IN_VRF_PORT,
+				   test_xdp, tcp_skc, 0), "out_to_in"))
+		goto done;
+
+done:
+	if (non_vrf_server >= 0)
+		close(non_vrf_server);
+	if (in_vrf_server >= 0)
+		close(in_vrf_server);
+	if (nstoken)
+		close_netns(nstoken);
+}
+
+void test_vrf_socket_lookup(void)
+{
+	struct vrf_socket_lookup *skel;
+
+	cleanup();
+
+	skel = vrf_socket_lookup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "vrf_socket_lookup__open_and_load"))
+		return;
+
+	if (!ASSERT_OK(setup(skel), "setup"))
+		goto done;
+
+	if (test__start_subtest("tc_socket_lookup_tcp"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, false, false);
+	if (test__start_subtest("tc_socket_lookup_tcp_skc"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, false, false);
+	if (test__start_subtest("tc_socket_lookup_udp"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, false, false);
+	if (test__start_subtest("xdp_socket_lookup_tcp"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, true, false);
+	if (test__start_subtest("xdp_socket_lookup_tcp_skc"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, true, false);
+	if (test__start_subtest("xdp_socket_lookup_udp"))
+		_test_vrf_socket_lookup(skel, SOCK_STREAM, true, false);
+
+done:
+	vrf_socket_lookup__destroy(skel);
+	cleanup();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/wq.c b/tools/testing/selftests/bpf/prog_tests/wq.c
new file mode 100644
index 000000000000..15c67d23128b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/wq.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Benjamin Tissoires */
+#include <test_progs.h>
+#include "wq.skel.h"
+#include "wq_failures.skel.h"
+
+void serial_test_wq(void)
+{
+	struct wq *wq_skel = NULL;
+	int err, prog_fd;
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	RUN_TESTS(wq);
+
+	/* re-run the success test to check if the timer was actually executed */
+
+	wq_skel = wq__open_and_load();
+	if (!ASSERT_OK_PTR(wq_skel, "wq_skel_load"))
+		return;
+
+	err = wq__attach(wq_skel);
+	if (!ASSERT_OK(err, "wq_attach"))
+		return;
+
+	prog_fd = bpf_program__fd(wq_skel->progs.test_syscall_array_sleepable);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, 0, "test_run");
+
+	usleep(50); /* 10 usecs should be enough, but give it extra */
+
+	ASSERT_EQ(wq_skel->bss->ok_sleepable, (1 << 1), "ok_sleepable");
+	wq__destroy(wq_skel);
+}
+
+void serial_test_failures_wq(void)
+{
+	RUN_TESTS(wq_failures);
+}
+
+static void test_failure_map_no_btf(void)
+{
+	struct wq *skel = NULL;
+	char log[8192];
+	const struct bpf_insn *insns;
+	size_t insn_cnt;
+	int ret, err, map_fd;
+	LIBBPF_OPTS(bpf_prog_load_opts, opts, .log_size = sizeof(log), .log_buf = log,
+		    .log_level = 2);
+
+	skel = wq__open();
+	if (!ASSERT_OK_PTR(skel, "skel_open"))
+		return;
+
+	err = bpf_object__prepare(skel->obj);
+	if (!ASSERT_OK(err, "skel__prepare"))
+		goto out;
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "map_no_btf", sizeof(__u32), sizeof(__u64), 100,
+				NULL);
+	if (!ASSERT_GT(map_fd, -1, "map create"))
+		goto out;
+
+	err = bpf_map__reuse_fd(skel->maps.array, map_fd);
+	if (!ASSERT_OK(err, "map reuse fd")) {
+		close(map_fd);
+		goto out;
+	}
+
+	insns = bpf_program__insns(skel->progs.test_map_no_btf);
+	if (!ASSERT_OK_PTR(insns, "insns ptr"))
+		goto out;
+
+	insn_cnt = bpf_program__insn_cnt(skel->progs.test_map_no_btf);
+	if (!ASSERT_GT(insn_cnt, 0u, "insn cnt"))
+		goto out;
+
+	ret = bpf_prog_load(BPF_PROG_TYPE_TRACEPOINT, NULL, "GPL", insns, insn_cnt, &opts);
+	if (!ASSERT_LT(ret, 0, "prog load failed")) {
+		if (ret > 0)
+			close(ret);
+		goto out;
+	}
+
+	ASSERT_HAS_SUBSTR(log, "map 'map_no_btf' has to have BTF in order to use bpf_wq",
+			  "log complains no map BTF");
+out:
+	wq__destroy(skel);
+}
+
+void test_wq_custom(void)
+{
+	if (test__start_subtest("test_failure_map_no_btf"))
+		test_failure_map_no_btf();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp.c b/tools/testing/selftests/bpf/prog_tests/xdp.c
new file mode 100644
index 000000000000..947863a1d536
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+void test_xdp(void)
+{
+	struct vip key4 = {.protocol = 6, .family = AF_INET};
+	struct vip key6 = {.protocol = 6, .family = AF_INET6};
+	struct iptnl_info value4 = {.family = AF_INET};
+	struct iptnl_info value6 = {.family = AF_INET6};
+	const char *file = "./test_xdp.bpf.o";
+	struct bpf_object *obj;
+	char buf[128];
+	struct ipv6hdr iph6;
+	struct iphdr iph;
+	int err, prog_fd, map_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	map_fd = bpf_find_map(__func__, obj, "vip2tnl");
+	if (map_fd < 0)
+		goto out;
+	bpf_map_update_elem(map_fd, &key4, &value4, 0);
+	bpf_map_update_elem(map_fd, &key6, &value6, 0);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	memcpy(&iph, buf + sizeof(struct ethhdr), sizeof(iph));
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, XDP_TX, "ipv4 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 74, "ipv4 test_run data_size_out");
+	ASSERT_EQ(iph.protocol, IPPROTO_IPIP, "ipv4 test_run iph.protocol");
+
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_size_out = sizeof(buf);
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	memcpy(&iph6, buf + sizeof(struct ethhdr), sizeof(iph6));
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, XDP_TX, "ipv6 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 114, "ipv6 test_run data_size_out");
+	ASSERT_EQ(iph6.nexthdr, IPPROTO_IPV6, "ipv6 test_run iph6.nexthdr");
+out:
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c
new file mode 100644
index 000000000000..fce203640f8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_frags.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void test_xdp_update_frags(void)
+{
+	const char *file = "./test_xdp_update_frags.bpf.o";
+	int err, prog_fd, max_skb_frags, buf_size, num;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	__u32 *offset;
+	__u8 *buf;
+	FILE *f;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	obj = bpf_object__open(file);
+	if (libbpf_get_error(obj))
+		return;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (bpf_object__load(obj))
+		return;
+
+	prog_fd = bpf_program__fd(prog);
+
+	buf = malloc(128);
+	if (!ASSERT_OK_PTR(buf, "alloc buf 128b"))
+		goto out;
+
+	memset(buf, 0, 128);
+	offset = (__u32 *)buf;
+	*offset = 16;
+	buf[*offset] = 0xaa;		/* marker at offset 16 (head) */
+	buf[*offset + 15] = 0xaa;	/* marker at offset 31 (head) */
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = 128;
+	topts.data_size_out = 128;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	/* test_xdp_update_frags: buf[16,31]: 0xaa -> 0xbb */
+	ASSERT_OK(err, "xdp_update_frag");
+	ASSERT_EQ(topts.retval, XDP_PASS, "xdp_update_frag retval");
+	ASSERT_EQ(buf[16], 0xbb, "xdp_update_frag buf[16]");
+	ASSERT_EQ(buf[31], 0xbb, "xdp_update_frag buf[31]");
+
+	free(buf);
+
+	buf = malloc(9000);
+	if (!ASSERT_OK_PTR(buf, "alloc buf 9Kb"))
+		goto out;
+
+	memset(buf, 0, 9000);
+	offset = (__u32 *)buf;
+	*offset = 5000;
+	buf[*offset] = 0xaa;		/* marker at offset 5000 (frag0) */
+	buf[*offset + 15] = 0xaa;	/* marker at offset 5015 (frag0) */
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = 9000;
+	topts.data_size_out = 9000;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	/* test_xdp_update_frags: buf[5000,5015]: 0xaa -> 0xbb */
+	ASSERT_OK(err, "xdp_update_frag");
+	ASSERT_EQ(topts.retval, XDP_PASS, "xdp_update_frag retval");
+	ASSERT_EQ(buf[5000], 0xbb, "xdp_update_frag buf[5000]");
+	ASSERT_EQ(buf[5015], 0xbb, "xdp_update_frag buf[5015]");
+
+	memset(buf, 0, 9000);
+	offset = (__u32 *)buf;
+	*offset = 3510;
+	buf[*offset] = 0xaa;		/* marker at offset 3510 (head) */
+	buf[*offset + 15] = 0xaa;	/* marker at offset 3525 (frag0) */
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	/* test_xdp_update_frags: buf[3510,3525]: 0xaa -> 0xbb */
+	ASSERT_OK(err, "xdp_update_frag");
+	ASSERT_EQ(topts.retval, XDP_PASS, "xdp_update_frag retval");
+	ASSERT_EQ(buf[3510], 0xbb, "xdp_update_frag buf[3510]");
+	ASSERT_EQ(buf[3525], 0xbb, "xdp_update_frag buf[3525]");
+
+	memset(buf, 0, 9000);
+	offset = (__u32 *)buf;
+	*offset = 7606;
+	buf[*offset] = 0xaa;		/* marker at offset 7606 (frag0) */
+	buf[*offset + 15] = 0xaa;	/* marker at offset 7621 (frag1) */
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	/* test_xdp_update_frags: buf[7606,7621]: 0xaa -> 0xbb */
+	ASSERT_OK(err, "xdp_update_frag");
+	ASSERT_EQ(topts.retval, XDP_PASS, "xdp_update_frag retval");
+	ASSERT_EQ(buf[7606], 0xbb, "xdp_update_frag buf[7606]");
+	ASSERT_EQ(buf[7621], 0xbb, "xdp_update_frag buf[7621]");
+
+	free(buf);
+
+	/* test_xdp_update_frags: unsupported buffer size */
+	f = fopen("/proc/sys/net/core/max_skb_frags", "r");
+	if (!ASSERT_OK_PTR(f, "max_skb_frag file pointer"))
+		goto out;
+
+	num = fscanf(f, "%d", &max_skb_frags);
+	fclose(f);
+
+	if (!ASSERT_EQ(num, 1, "max_skb_frags read failed"))
+		goto out;
+
+	/* xdp_buff linear area size is always set to 4096 in the
+	 * bpf_prog_test_run_xdp routine.
+	 */
+	buf_size = 4096 + (max_skb_frags + 1) * sysconf(_SC_PAGE_SIZE);
+	buf = malloc(buf_size);
+	if (!ASSERT_OK_PTR(buf, "alloc buf"))
+		goto out;
+
+	memset(buf, 0, buf_size);
+	offset = (__u32 *)buf;
+	*offset = 16;
+	buf[*offset] = 0xaa;
+	buf[*offset + 15] = 0xaa;
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = buf_size;
+	topts.data_size_out = buf_size;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_EQ(err, -ENOMEM,
+		  "unsupported buf size, possible non-default /proc/sys/net/core/max_skb_flags?");
+	free(buf);
+out:
+	bpf_object__close(obj);
+}
+
+void test_xdp_adjust_frags(void)
+{
+	if (test__start_subtest("xdp_adjust_frags"))
+		test_xdp_update_frags();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
new file mode 100644
index 000000000000..43264347e7d7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_adjust_tail.c
@@ -0,0 +1,376 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+
+static void test_xdp_adjust_tail_shrink(void)
+{
+	const char *file = "./test_xdp_adjust_tail_shrink.bpf.o";
+	__u32 expect_sz;
+	struct bpf_object *obj;
+	int err, prog_fd;
+	char buf[128];
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (!ASSERT_OK(err, "test_xdp_adjust_tail_shrink"))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv4");
+	ASSERT_EQ(topts.retval, XDP_DROP, "ipv4 retval");
+
+	expect_sz = sizeof(pkt_v6) - 20;  /* Test shrink with 20 bytes */
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_size_out = sizeof(buf);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv6");
+	ASSERT_EQ(topts.retval, XDP_TX, "ipv6 retval");
+	ASSERT_EQ(topts.data_size_out, expect_sz, "ipv6 size");
+
+	bpf_object__close(obj);
+}
+
+static void test_xdp_adjust_tail_grow(bool is_64k_pagesize)
+{
+	const char *file = "./test_xdp_adjust_tail_grow.bpf.o";
+	struct bpf_object *obj;
+	char buf[8192]; /* avoid segfault: large buf to hold grow results */
+	__u32 expect_sz;
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = 1,
+	);
+
+	/* topts.data_size_in as a special signal to bpf prog */
+	if (is_64k_pagesize)
+		topts.data_size_in = sizeof(pkt_v4) - 1;
+	else
+		topts.data_size_in = sizeof(pkt_v4);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (!ASSERT_OK(err, "test_xdp_adjust_tail_grow"))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv4");
+	ASSERT_EQ(topts.retval, XDP_DROP, "ipv4 retval");
+
+	expect_sz = sizeof(pkt_v6) + 40; /* Test grow with 40 bytes */
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_size_out = sizeof(buf);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "ipv6");
+	ASSERT_EQ(topts.retval, XDP_TX, "ipv6 retval");
+	ASSERT_EQ(topts.data_size_out, expect_sz, "ipv6 size");
+
+	bpf_object__close(obj);
+}
+
+static void test_xdp_adjust_tail_grow2(void)
+{
+	const char *file = "./test_xdp_adjust_tail_grow.bpf.o";
+	char buf[4096]; /* avoid segfault: large buf to hold grow results */
+	struct bpf_object *obj;
+	int err, cnt, i;
+	int max_grow, prog_fd;
+	/* SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) */
+#if defined(__s390x__)
+	int tailroom = 512;
+#elif defined(__powerpc__)
+	int tailroom = 384;
+#else
+	int tailroom = 320;
+#endif
+
+	LIBBPF_OPTS(bpf_test_run_opts, tattr,
+		.repeat		= 1,
+		.data_in	= &buf,
+		.data_out	= &buf,
+		.data_size_in	= 0, /* Per test */
+		.data_size_out	= 0, /* Per test */
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (!ASSERT_OK(err, "test_xdp_adjust_tail_grow"))
+		return;
+
+	/* Test case-64 */
+	memset(buf, 1, sizeof(buf));
+	tattr.data_size_in  =  64; /* Determine test case via pkt size */
+	tattr.data_size_out = 128; /* Limit copy_size */
+	/* Kernel side alloc packet memory area that is zero init */
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+
+	ASSERT_EQ(errno, ENOSPC, "case-64 errno"); /* Due limit copy_size in bpf_test_finish */
+	ASSERT_EQ(tattr.retval, XDP_TX, "case-64 retval");
+	ASSERT_EQ(tattr.data_size_out, 192, "case-64 data_size_out"); /* Expected grow size */
+
+	/* Extra checks for data contents */
+	ASSERT_EQ(buf[0], 1, "case-64-data buf[0]"); /*  0-63  memset to 1 */
+	ASSERT_EQ(buf[63], 1, "case-64-data buf[63]");
+	ASSERT_EQ(buf[64], 0, "case-64-data buf[64]"); /* 64-127 memset to 0 */
+	ASSERT_EQ(buf[127], 0, "case-64-data buf[127]");
+	ASSERT_EQ(buf[128], 1, "case-64-data buf[128]"); /* 128-191 memset to 1 */
+	ASSERT_EQ(buf[191], 1, "case-64-data buf[191]");
+
+	/* Test case-128 */
+	memset(buf, 2, sizeof(buf));
+	tattr.data_size_in  = 128; /* Determine test case via pkt size */
+	tattr.data_size_out = sizeof(buf);   /* Copy everything */
+	err = bpf_prog_test_run_opts(prog_fd, &tattr);
+
+	max_grow = 4096 - XDP_PACKET_HEADROOM -	tailroom; /* 3520 */
+	ASSERT_OK(err, "case-128");
+	ASSERT_EQ(tattr.retval, XDP_TX, "case-128 retval");
+	ASSERT_EQ(tattr.data_size_out, max_grow, "case-128 data_size_out"); /* Expect max grow */
+
+	/* Extra checks for data content: Count grow size, will contain zeros */
+	for (i = 0, cnt = 0; i < sizeof(buf); i++) {
+		if (buf[i] == 0)
+			cnt++;
+	}
+	ASSERT_EQ(cnt, max_grow - tattr.data_size_in, "case-128-data cnt"); /* Grow increase */
+	ASSERT_EQ(tattr.data_size_out, max_grow, "case-128-data data_size_out"); /* Total grow */
+
+	bpf_object__close(obj);
+}
+
+static void test_xdp_adjust_frags_tail_shrink(void)
+{
+	const char *file = "./test_xdp_adjust_tail_shrink.bpf.o";
+	__u32 exp_size;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int err, prog_fd;
+	__u8 *buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	/* For the individual test cases, the first byte in the packet
+	 * indicates which test will be run.
+	 */
+	obj = bpf_object__open(file);
+	if (libbpf_get_error(obj))
+		return;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (bpf_object__load(obj))
+		return;
+
+	prog_fd = bpf_program__fd(prog);
+
+	buf = malloc(9000);
+	if (!ASSERT_OK_PTR(buf, "alloc buf 9Kb"))
+		goto out;
+
+	memset(buf, 0, 9000);
+
+	/* Test case removing 10 bytes from last frag, NOT freeing it */
+	exp_size = 8990; /* 9000 - 10 */
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = 9000;
+	topts.data_size_out = 9000;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "9Kb-10b");
+	ASSERT_EQ(topts.retval, XDP_TX, "9Kb-10b retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "9Kb-10b size");
+
+	/* Test case removing one of two pages, assuming 4K pages */
+	buf[0] = 1;
+	exp_size = 4900; /* 9000 - 4100 */
+
+	topts.data_size_out = 9000; /* reset from previous invocation */
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "9Kb-4Kb");
+	ASSERT_EQ(topts.retval, XDP_TX, "9Kb-4Kb retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "9Kb-4Kb size");
+
+	/* Test case removing two pages resulting in a linear xdp_buff */
+	buf[0] = 2;
+	exp_size = 800; /* 9000 - 8200 */
+	topts.data_size_out = 9000; /* reset from previous invocation */
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "9Kb-9Kb");
+	ASSERT_EQ(topts.retval, XDP_TX, "9Kb-9Kb retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "9Kb-9Kb size");
+
+	free(buf);
+out:
+	bpf_object__close(obj);
+}
+
+static void test_xdp_adjust_frags_tail_grow_4k(void)
+{
+	const char *file = "./test_xdp_adjust_tail_grow.bpf.o";
+	__u32 exp_size;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int err, i, prog_fd;
+	__u8 *buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	obj = bpf_object__open(file);
+	if (libbpf_get_error(obj))
+		return;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (bpf_object__load(obj))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+
+	buf = malloc(16384);
+	if (!ASSERT_OK_PTR(buf, "alloc buf 16Kb"))
+		goto out;
+
+	/* Test case add 10 bytes to last frag */
+	memset(buf, 1, 16384);
+	exp_size = 9000 + 10;
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = 9000;
+	topts.data_size_out = 16384;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "9Kb+10b");
+	ASSERT_EQ(topts.retval, XDP_TX, "9Kb+10b retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "9Kb+10b size");
+
+	for (i = 0; i < 9000; i++) {
+		if (buf[i] != 1)
+			ASSERT_EQ(buf[i], 1, "9Kb+10b-old");
+	}
+
+	for (i = 9000; i < 9010; i++) {
+		if (buf[i] != 0)
+			ASSERT_EQ(buf[i], 0, "9Kb+10b-new");
+	}
+
+	for (i = 9010; i < 16384; i++) {
+		if (buf[i] != 1)
+			ASSERT_EQ(buf[i], 1, "9Kb+10b-untouched");
+	}
+
+	/* Test a too large grow */
+	memset(buf, 1, 16384);
+	exp_size = 9001;
+
+	topts.data_in = topts.data_out = buf;
+	topts.data_size_in = 9001;
+	topts.data_size_out = 16384;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "9Kb+10b");
+	ASSERT_EQ(topts.retval, XDP_DROP, "9Kb+10b retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "9Kb+10b size");
+
+	free(buf);
+out:
+	bpf_object__close(obj);
+}
+
+static void test_xdp_adjust_frags_tail_grow_64k(void)
+{
+	const char *file = "./test_xdp_adjust_tail_grow.bpf.o";
+	__u32 exp_size;
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int err, i, prog_fd;
+	__u8 *buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	obj = bpf_object__open(file);
+	if (libbpf_get_error(obj))
+		return;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (bpf_object__load(obj))
+		goto out;
+
+	prog_fd = bpf_program__fd(prog);
+
+	buf = malloc(262144);
+	if (!ASSERT_OK_PTR(buf, "alloc buf 256Kb"))
+		goto out;
+
+	/* Test case add 10 bytes to last frag */
+	memset(buf, 1, 262144);
+	exp_size = 90000 + 10;
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = 90000;
+	topts.data_size_out = 262144;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "90Kb+10b");
+	ASSERT_EQ(topts.retval, XDP_TX, "90Kb+10b retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "90Kb+10b size");
+
+	for (i = 0; i < 90000; i++) {
+		if (buf[i] != 1)
+			ASSERT_EQ(buf[i], 1, "90Kb+10b-old");
+	}
+
+	for (i = 90000; i < 90010; i++) {
+		if (buf[i] != 0)
+			ASSERT_EQ(buf[i], 0, "90Kb+10b-new");
+	}
+
+	for (i = 90010; i < 262144; i++) {
+		if (buf[i] != 1)
+			ASSERT_EQ(buf[i], 1, "90Kb+10b-untouched");
+	}
+
+	/* Test a too large grow */
+	memset(buf, 1, 262144);
+	exp_size = 90001;
+
+	topts.data_in = topts.data_out = buf;
+	topts.data_size_in = 90001;
+	topts.data_size_out = 262144;
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+
+	ASSERT_OK(err, "90Kb+10b");
+	ASSERT_EQ(topts.retval, XDP_DROP, "90Kb+10b retval");
+	ASSERT_EQ(topts.data_size_out, exp_size, "90Kb+10b size");
+
+	free(buf);
+out:
+	bpf_object__close(obj);
+}
+
+void test_xdp_adjust_tail(void)
+{
+	int page_size = getpagesize();
+
+	if (test__start_subtest("xdp_adjust_tail_shrink"))
+		test_xdp_adjust_tail_shrink();
+	if (test__start_subtest("xdp_adjust_tail_grow"))
+		test_xdp_adjust_tail_grow(page_size == 65536);
+	if (test__start_subtest("xdp_adjust_tail_grow2"))
+		test_xdp_adjust_tail_grow2();
+	if (test__start_subtest("xdp_adjust_frags_tail_shrink"))
+		test_xdp_adjust_frags_tail_shrink();
+	if (test__start_subtest("xdp_adjust_frags_tail_grow")) {
+		if (page_size == 65536)
+			test_xdp_adjust_frags_tail_grow_64k();
+		else
+			test_xdp_adjust_frags_tail_grow_4k();
+	}
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_attach.c b/tools/testing/selftests/bpf/prog_tests/xdp_attach.c
new file mode 100644
index 000000000000..e6bcb6051402
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_attach.c
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include "test_xdp_attach_fail.skel.h"
+
+#define IFINDEX_LO 1
+#define XDP_FLAGS_REPLACE		(1U << 4)
+
+static void test_xdp_attach(const char *file)
+{
+	__u32 duration = 0, id1, id2, id0 = 0, len;
+	struct bpf_object *obj1, *obj2, *obj3;
+	struct bpf_prog_info info = {};
+	int err, fd1, fd2, fd3;
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+
+	len = sizeof(info);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj1, &fd1);
+	if (CHECK_FAIL(err))
+		return;
+	err = bpf_prog_get_info_by_fd(fd1, &info, &len);
+	if (CHECK_FAIL(err))
+		goto out_1;
+	id1 = info.id;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj2, &fd2);
+	if (CHECK_FAIL(err))
+		goto out_1;
+
+	memset(&info, 0, sizeof(info));
+	err = bpf_prog_get_info_by_fd(fd2, &info, &len);
+	if (CHECK_FAIL(err))
+		goto out_2;
+	id2 = info.id;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj3, &fd3);
+	if (CHECK_FAIL(err))
+		goto out_2;
+
+	err = bpf_xdp_attach(IFINDEX_LO, fd1, XDP_FLAGS_REPLACE, &opts);
+	if (CHECK(err, "load_ok", "initial load failed"))
+		goto out_close;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (CHECK(err || id0 != id1, "id1_check",
+		  "loaded prog id %u != id1 %u, err %d", id0, id1, err))
+		goto out_close;
+
+	err = bpf_xdp_attach(IFINDEX_LO, fd2, XDP_FLAGS_REPLACE, &opts);
+	if (CHECK(!err, "load_fail", "load with expected id didn't fail"))
+		goto out;
+
+	opts.old_prog_fd = fd1;
+	err = bpf_xdp_attach(IFINDEX_LO, fd2, 0, &opts);
+	if (CHECK(err, "replace_ok", "replace valid old_fd failed"))
+		goto out;
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (CHECK(err || id0 != id2, "id2_check",
+		  "loaded prog id %u != id2 %u, err %d", id0, id2, err))
+		goto out_close;
+
+	err = bpf_xdp_attach(IFINDEX_LO, fd3, 0, &opts);
+	if (CHECK(!err, "replace_fail", "replace invalid old_fd didn't fail"))
+		goto out;
+
+	err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
+	if (CHECK(!err, "remove_fail", "remove invalid old_fd didn't fail"))
+		goto out;
+
+	opts.old_prog_fd = fd2;
+	err = bpf_xdp_detach(IFINDEX_LO, 0, &opts);
+	if (CHECK(err, "remove_ok", "remove valid old_fd failed"))
+		goto out;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (CHECK(err || id0 != 0, "unload_check",
+		  "loaded prog id %u != 0, err %d", id0, err))
+		goto out_close;
+out:
+	bpf_xdp_detach(IFINDEX_LO, 0, NULL);
+out_close:
+	bpf_object__close(obj3);
+out_2:
+	bpf_object__close(obj2);
+out_1:
+	bpf_object__close(obj1);
+}
+
+#define ERRMSG_LEN 64
+
+struct xdp_errmsg {
+	char msg[ERRMSG_LEN];
+};
+
+static void on_xdp_errmsg(void *ctx, int cpu, void *data, __u32 size)
+{
+	struct xdp_errmsg *ctx_errmg = ctx, *tp_errmsg = data;
+
+	memcpy(&ctx_errmg->msg, &tp_errmsg->msg, ERRMSG_LEN);
+}
+
+static const char tgt_errmsg[] = "Invalid XDP flags for BPF link attachment";
+
+static void test_xdp_attach_fail(const char *file)
+{
+	struct test_xdp_attach_fail *skel = NULL;
+	struct xdp_errmsg errmsg = {};
+	struct perf_buffer *pb = NULL;
+	struct bpf_object *obj = NULL;
+	int err, fd_xdp;
+
+	LIBBPF_OPTS(bpf_link_create_opts, opts);
+
+	skel = test_xdp_attach_fail__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_attach_fail__open_and_load"))
+		goto out_close;
+
+	err = test_xdp_attach_fail__attach(skel);
+	if (!ASSERT_EQ(err, 0, "test_xdp_attach_fail__attach"))
+		goto out_close;
+
+	/* set up perf buffer */
+	pb = perf_buffer__new(bpf_map__fd(skel->maps.xdp_errmsg_pb), 1,
+			      on_xdp_errmsg, NULL, &errmsg, NULL);
+	if (!ASSERT_OK_PTR(pb, "perf_buffer__new"))
+		goto out_close;
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &fd_xdp);
+	if (!ASSERT_EQ(err, 0, "bpf_prog_test_load"))
+		goto out_close;
+
+	opts.flags = 0xFF; // invalid flags to fail to attach XDP prog
+	err = bpf_link_create(fd_xdp, IFINDEX_LO, BPF_XDP, &opts);
+	if (!ASSERT_EQ(err, -EINVAL, "bpf_link_create"))
+		goto out_close;
+
+	/* read perf buffer */
+	err = perf_buffer__poll(pb, 100);
+	if (!ASSERT_GT(err, -1, "perf_buffer__poll"))
+		goto out_close;
+
+	ASSERT_STRNEQ((const char *) errmsg.msg, tgt_errmsg,
+		      42 /* strlen(tgt_errmsg) */, "check error message");
+
+out_close:
+	perf_buffer__free(pb);
+	bpf_object__close(obj);
+	test_xdp_attach_fail__destroy(skel);
+}
+
+void serial_test_xdp_attach(void)
+{
+	if (test__start_subtest("xdp_attach"))
+		test_xdp_attach("./test_xdp.bpf.o");
+	if (test__start_subtest("xdp_attach_dynptr"))
+		test_xdp_attach("./test_xdp_dynptr.bpf.o");
+	if (test__start_subtest("xdp_attach_failed"))
+		test_xdp_attach_fail("./xdp_dummy.bpf.o");
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c b/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c
new file mode 100644
index 000000000000..fb952703653e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_bonding.c
@@ -0,0 +1,691 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/**
+ * Test XDP bonding support
+ *
+ * Sets up two bonded veth pairs between two fresh namespaces
+ * and verifies that XDP_TX program loaded on a bond device
+ * are correctly loaded onto the slave devices and XDP_TX'd
+ * packets are balanced using bonding.
+ */
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <net/if.h>
+#include <linux/if_link.h>
+#include "test_progs.h"
+#include "network_helpers.h"
+#include <linux/if_bonding.h>
+#include <linux/limits.h>
+#include <netinet/udp.h>
+#include <uapi/linux/netdev.h>
+
+#include "xdp_dummy.skel.h"
+#include "xdp_redirect_multi_kern.skel.h"
+#include "xdp_tx.skel.h"
+
+#define BOND1_MAC {0x00, 0x11, 0x22, 0x33, 0x44, 0x55}
+#define BOND1_MAC_STR "00:11:22:33:44:55"
+#define BOND2_MAC {0x00, 0x22, 0x33, 0x44, 0x55, 0x66}
+#define BOND2_MAC_STR "00:22:33:44:55:66"
+#define NPACKETS 100
+
+static int root_netns_fd = -1;
+
+static void restore_root_netns(void)
+{
+	ASSERT_OK(setns(root_netns_fd, CLONE_NEWNET), "restore_root_netns");
+}
+
+static int setns_by_name(char *name)
+{
+	int nsfd, err;
+	char nspath[PATH_MAX];
+
+	snprintf(nspath, sizeof(nspath), "%s/%s", "/var/run/netns", name);
+	nsfd = open(nspath, O_RDONLY | O_CLOEXEC);
+	if (nsfd < 0)
+		return -1;
+
+	err = setns(nsfd, CLONE_NEWNET);
+	close(nsfd);
+	return err;
+}
+
+static int get_rx_packets(const char *iface)
+{
+	FILE *f;
+	char line[512];
+	int iface_len = strlen(iface);
+
+	f = fopen("/proc/net/dev", "r");
+	if (!f)
+		return -1;
+
+	while (fgets(line, sizeof(line), f)) {
+		char *p = line;
+
+		while (*p == ' ')
+			p++; /* skip whitespace */
+		if (!strncmp(p, iface, iface_len)) {
+			p += iface_len;
+			if (*p++ != ':')
+				continue;
+			while (*p == ' ')
+				p++; /* skip whitespace */
+			while (*p && *p != ' ')
+				p++; /* skip rx bytes */
+			while (*p == ' ')
+				p++; /* skip whitespace */
+			fclose(f);
+			return atoi(p);
+		}
+	}
+	fclose(f);
+	return -1;
+}
+
+#define MAX_BPF_LINKS 8
+
+struct skeletons {
+	struct xdp_dummy *xdp_dummy;
+	struct xdp_tx *xdp_tx;
+	struct xdp_redirect_multi_kern *xdp_redirect_multi_kern;
+
+	int nlinks;
+	struct bpf_link *links[MAX_BPF_LINKS];
+};
+
+static int xdp_attach(struct skeletons *skeletons, struct bpf_program *prog, char *iface)
+{
+	struct bpf_link *link;
+	int ifindex;
+
+	ifindex = if_nametoindex(iface);
+	if (!ASSERT_GT(ifindex, 0, "get ifindex"))
+		return -1;
+
+	if (!ASSERT_LE(skeletons->nlinks+1, MAX_BPF_LINKS, "too many XDP programs attached"))
+		return -1;
+
+	link = bpf_program__attach_xdp(prog, ifindex);
+	if (!ASSERT_OK_PTR(link, "attach xdp program"))
+		return -1;
+
+	skeletons->links[skeletons->nlinks++] = link;
+	return 0;
+}
+
+enum {
+	BOND_ONE_NO_ATTACH = 0,
+	BOND_BOTH_AND_ATTACH,
+};
+
+static const char * const mode_names[] = {
+	[BOND_MODE_ROUNDROBIN]   = "balance-rr",
+	[BOND_MODE_ACTIVEBACKUP] = "active-backup",
+	[BOND_MODE_XOR]          = "balance-xor",
+	[BOND_MODE_BROADCAST]    = "broadcast",
+	[BOND_MODE_8023AD]       = "802.3ad",
+	[BOND_MODE_TLB]          = "balance-tlb",
+	[BOND_MODE_ALB]          = "balance-alb",
+};
+
+static const char * const xmit_policy_names[] = {
+	[BOND_XMIT_POLICY_LAYER2]       = "layer2",
+	[BOND_XMIT_POLICY_LAYER34]      = "layer3+4",
+	[BOND_XMIT_POLICY_LAYER23]      = "layer2+3",
+	[BOND_XMIT_POLICY_ENCAP23]      = "encap2+3",
+	[BOND_XMIT_POLICY_ENCAP34]      = "encap3+4",
+};
+
+static int bonding_setup(struct skeletons *skeletons, int mode, int xmit_policy,
+			 int bond_both_attach)
+{
+	SYS(fail, "ip netns add ns_dst");
+	SYS(fail, "ip link add veth1_1 type veth peer name veth2_1 netns ns_dst");
+	SYS(fail, "ip link add veth1_2 type veth peer name veth2_2 netns ns_dst");
+
+	SYS(fail, "ip link add bond1 type bond mode %s xmit_hash_policy %s",
+	    mode_names[mode], xmit_policy_names[xmit_policy]);
+	SYS(fail, "ip link set bond1 up address " BOND1_MAC_STR " addrgenmode none");
+	SYS(fail, "ip -netns ns_dst link add bond2 type bond mode %s xmit_hash_policy %s",
+	    mode_names[mode], xmit_policy_names[xmit_policy]);
+	SYS(fail, "ip -netns ns_dst link set bond2 up address " BOND2_MAC_STR " addrgenmode none");
+
+	SYS(fail, "ip link set veth1_1 master bond1");
+	if (bond_both_attach == BOND_BOTH_AND_ATTACH) {
+		SYS(fail, "ip link set veth1_2 master bond1");
+	} else {
+		SYS(fail, "ip link set veth1_2 up addrgenmode none");
+
+		if (xdp_attach(skeletons, skeletons->xdp_dummy->progs.xdp_dummy_prog, "veth1_2"))
+			return -1;
+	}
+
+	SYS(fail, "ip -netns ns_dst link set veth2_1 master bond2");
+
+	if (bond_both_attach == BOND_BOTH_AND_ATTACH)
+		SYS(fail, "ip -netns ns_dst link set veth2_2 master bond2");
+	else
+		SYS(fail, "ip -netns ns_dst link set veth2_2 up addrgenmode none");
+
+	/* Load a dummy program on sending side as with veth peer needs to have a
+	 * XDP program loaded as well.
+	 */
+	if (xdp_attach(skeletons, skeletons->xdp_dummy->progs.xdp_dummy_prog, "bond1"))
+		return -1;
+
+	if (bond_both_attach == BOND_BOTH_AND_ATTACH) {
+		if (!ASSERT_OK(setns_by_name("ns_dst"), "set netns to ns_dst"))
+			return -1;
+
+		if (xdp_attach(skeletons, skeletons->xdp_tx->progs.xdp_tx, "bond2"))
+			return -1;
+
+		restore_root_netns();
+	}
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void bonding_cleanup(struct skeletons *skeletons)
+{
+	restore_root_netns();
+	while (skeletons->nlinks) {
+		skeletons->nlinks--;
+		bpf_link__destroy(skeletons->links[skeletons->nlinks]);
+	}
+	ASSERT_OK(system("ip link delete bond1"), "delete bond1");
+	ASSERT_OK(system("ip link delete veth1_1"), "delete veth1_1");
+	ASSERT_OK(system("ip link delete veth1_2"), "delete veth1_2");
+	ASSERT_OK(system("ip netns delete ns_dst"), "delete ns_dst");
+}
+
+static int send_udp_packets(int vary_dst_ip)
+{
+	struct ethhdr eh = {
+		.h_source = BOND1_MAC,
+		.h_dest = BOND2_MAC,
+		.h_proto = htons(ETH_P_IP),
+	};
+	struct iphdr iph = {};
+	struct udphdr uh = {};
+	uint8_t buf[128];
+	int i, s = -1;
+	int ifindex;
+
+	s = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW);
+	if (!ASSERT_GE(s, 0, "socket"))
+		goto err;
+
+	ifindex = if_nametoindex("bond1");
+	if (!ASSERT_GT(ifindex, 0, "get bond1 ifindex"))
+		goto err;
+
+	iph.ihl = 5;
+	iph.version = 4;
+	iph.tos = 16;
+	iph.id = 1;
+	iph.ttl = 64;
+	iph.protocol = IPPROTO_UDP;
+	iph.saddr = 1;
+	iph.daddr = 2;
+	iph.tot_len = htons(sizeof(buf) - ETH_HLEN);
+	iph.check = 0;
+
+	for (i = 1; i <= NPACKETS; i++) {
+		int n;
+		struct sockaddr_ll saddr_ll = {
+			.sll_ifindex = ifindex,
+			.sll_halen = ETH_ALEN,
+			.sll_addr = BOND2_MAC,
+		};
+
+		/* vary the UDP destination port for even distribution with roundrobin/xor modes */
+		uh.dest++;
+
+		if (vary_dst_ip)
+			iph.daddr++;
+
+		/* construct a packet */
+		memcpy(buf, &eh, sizeof(eh));
+		memcpy(buf + sizeof(eh), &iph, sizeof(iph));
+		memcpy(buf + sizeof(eh) + sizeof(iph), &uh, sizeof(uh));
+
+		n = sendto(s, buf, sizeof(buf), 0, (struct sockaddr *)&saddr_ll, sizeof(saddr_ll));
+		if (!ASSERT_EQ(n, sizeof(buf), "sendto"))
+			goto err;
+	}
+
+	return 0;
+
+err:
+	if (s >= 0)
+		close(s);
+	return -1;
+}
+
+static void test_xdp_bonding_with_mode(struct skeletons *skeletons, int mode, int xmit_policy)
+{
+	int bond1_rx;
+
+	if (bonding_setup(skeletons, mode, xmit_policy, BOND_BOTH_AND_ATTACH))
+		goto out;
+
+	if (send_udp_packets(xmit_policy != BOND_XMIT_POLICY_LAYER34))
+		goto out;
+
+	bond1_rx = get_rx_packets("bond1");
+	ASSERT_EQ(bond1_rx, NPACKETS, "expected more received packets");
+
+	switch (mode) {
+	case BOND_MODE_ROUNDROBIN:
+	case BOND_MODE_XOR: {
+		int veth1_rx = get_rx_packets("veth1_1");
+		int veth2_rx = get_rx_packets("veth1_2");
+		int diff = abs(veth1_rx - veth2_rx);
+
+		ASSERT_GE(veth1_rx + veth2_rx, NPACKETS, "expected more packets");
+
+		switch (xmit_policy) {
+		case BOND_XMIT_POLICY_LAYER2:
+			ASSERT_GE(diff, NPACKETS,
+				  "expected packets on only one of the interfaces");
+			break;
+		case BOND_XMIT_POLICY_LAYER23:
+		case BOND_XMIT_POLICY_LAYER34:
+			ASSERT_LT(diff, NPACKETS/2,
+				  "expected even distribution of packets");
+			break;
+		default:
+			PRINT_FAIL("Unimplemented xmit_policy=%d\n", xmit_policy);
+			break;
+		}
+		break;
+	}
+	case BOND_MODE_ACTIVEBACKUP: {
+		int veth1_rx = get_rx_packets("veth1_1");
+		int veth2_rx = get_rx_packets("veth1_2");
+		int diff = abs(veth1_rx - veth2_rx);
+
+		ASSERT_GE(diff, NPACKETS,
+			  "expected packets on only one of the interfaces");
+		break;
+	}
+	default:
+		PRINT_FAIL("Unimplemented xmit_policy=%d\n", xmit_policy);
+		break;
+	}
+
+out:
+	bonding_cleanup(skeletons);
+}
+
+/* Test the broadcast redirection using xdp_redirect_map_multi_prog and adding
+ * all the interfaces to it and checking that broadcasting won't send the packet
+ * to neither the ingress bond device (bond2) or its slave (veth2_1).
+ */
+static void test_xdp_bonding_redirect_multi(struct skeletons *skeletons)
+{
+	static const char * const ifaces[] = {"bond2", "veth2_1", "veth2_2"};
+	int veth1_1_rx, veth1_2_rx;
+	int err;
+
+	if (bonding_setup(skeletons, BOND_MODE_ROUNDROBIN, BOND_XMIT_POLICY_LAYER23,
+			  BOND_ONE_NO_ATTACH))
+		goto out;
+
+
+	if (!ASSERT_OK(setns_by_name("ns_dst"), "could not set netns to ns_dst"))
+		goto out;
+
+	/* populate the devmap with the relevant interfaces */
+	for (int i = 0; i < ARRAY_SIZE(ifaces); i++) {
+		int ifindex = if_nametoindex(ifaces[i]);
+		int map_fd = bpf_map__fd(skeletons->xdp_redirect_multi_kern->maps.map_all);
+
+		if (!ASSERT_GT(ifindex, 0, "could not get interface index"))
+			goto out;
+
+		err = bpf_map_update_elem(map_fd, &ifindex, &ifindex, 0);
+		if (!ASSERT_OK(err, "add interface to map_all"))
+			goto out;
+	}
+
+	if (xdp_attach(skeletons,
+		       skeletons->xdp_redirect_multi_kern->progs.xdp_redirect_map_multi_prog,
+		       "bond2"))
+		goto out;
+
+	restore_root_netns();
+
+	if (send_udp_packets(BOND_MODE_ROUNDROBIN))
+		goto out;
+
+	veth1_1_rx = get_rx_packets("veth1_1");
+	veth1_2_rx = get_rx_packets("veth1_2");
+
+	ASSERT_EQ(veth1_1_rx, 0, "expected no packets on veth1_1");
+	ASSERT_GE(veth1_2_rx, NPACKETS, "expected packets on veth1_2");
+
+out:
+	restore_root_netns();
+	bonding_cleanup(skeletons);
+}
+
+/* Test that XDP programs cannot be attached to both the bond master and slaves simultaneously */
+static void test_xdp_bonding_attach(struct skeletons *skeletons)
+{
+	struct bpf_link *link = NULL;
+	struct bpf_link *link2 = NULL;
+	int veth, bond, err;
+
+	if (!ASSERT_OK(system("ip link add veth type veth"), "add veth"))
+		goto out;
+	if (!ASSERT_OK(system("ip link add bond type bond"), "add bond"))
+		goto out;
+
+	veth = if_nametoindex("veth");
+	if (!ASSERT_GE(veth, 0, "if_nametoindex veth"))
+		goto out;
+	bond = if_nametoindex("bond");
+	if (!ASSERT_GE(bond, 0, "if_nametoindex bond"))
+		goto out;
+
+	/* enslaving with a XDP program loaded is allowed */
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, veth);
+	if (!ASSERT_OK_PTR(link, "attach program to veth"))
+		goto out;
+
+	err = system("ip link set veth master bond");
+	if (!ASSERT_OK(err, "set veth master"))
+		goto out;
+
+	bpf_link__destroy(link);
+	link = NULL;
+
+	/* attaching to slave when master has no program is allowed */
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, veth);
+	if (!ASSERT_OK_PTR(link, "attach program to slave when enslaved"))
+		goto out;
+
+	/* attaching to master not allowed when slave has program loaded */
+	link2 = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, bond);
+	if (!ASSERT_ERR_PTR(link2, "attach program to master when slave has program"))
+		goto out;
+
+	bpf_link__destroy(link);
+	link = NULL;
+
+	/* attaching XDP program to master allowed when slave has no program */
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, bond);
+	if (!ASSERT_OK_PTR(link, "attach program to master"))
+		goto out;
+
+	/* attaching to slave not allowed when master has program loaded */
+	link2 = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, veth);
+	if (!ASSERT_ERR_PTR(link2, "attach program to slave when master has program"))
+		goto out;
+
+	bpf_link__destroy(link);
+	link = NULL;
+
+	/* test program unwinding with a non-XDP slave */
+	if (!ASSERT_OK(system("ip link add vxlan type vxlan id 1 remote 1.2.3.4 dstport 0 dev lo"),
+		       "add vxlan"))
+		goto out;
+
+	err = system("ip link set vxlan master bond");
+	if (!ASSERT_OK(err, "set vxlan master"))
+		goto out;
+
+	/* attaching not allowed when one slave does not support XDP */
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, bond);
+	if (!ASSERT_ERR_PTR(link, "attach program to master when slave does not support XDP"))
+		goto out;
+
+out:
+	bpf_link__destroy(link);
+	bpf_link__destroy(link2);
+
+	system("ip link del veth");
+	system("ip link del bond");
+	system("ip link del vxlan");
+}
+
+/* Test with nested bonding devices to catch issue with negative jump label count */
+static void test_xdp_bonding_nested(struct skeletons *skeletons)
+{
+	struct bpf_link *link = NULL;
+	int bond, err;
+
+	if (!ASSERT_OK(system("ip link add bond type bond"), "add bond"))
+		goto out;
+
+	bond = if_nametoindex("bond");
+	if (!ASSERT_GE(bond, 0, "if_nametoindex bond"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link add bond_nest1 type bond"), "add bond_nest1"))
+		goto out;
+
+	err = system("ip link set bond_nest1 master bond");
+	if (!ASSERT_OK(err, "set bond_nest1 master"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link add bond_nest2 type bond"), "add bond_nest1"))
+		goto out;
+
+	err = system("ip link set bond_nest2 master bond_nest1");
+	if (!ASSERT_OK(err, "set bond_nest2 master"))
+		goto out;
+
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog, bond);
+	ASSERT_OK_PTR(link, "attach program to master");
+
+out:
+	bpf_link__destroy(link);
+	system("ip link del bond");
+	system("ip link del bond_nest1");
+	system("ip link del bond_nest2");
+}
+
+static void test_xdp_bonding_features(struct skeletons *skeletons)
+{
+	LIBBPF_OPTS(bpf_xdp_query_opts, query_opts);
+	int bond_idx, veth1_idx, err;
+	struct bpf_link *link = NULL;
+
+	if (!ASSERT_OK(system("ip link add bond type bond"), "add bond"))
+		goto out;
+
+	bond_idx = if_nametoindex("bond");
+	if (!ASSERT_GE(bond_idx, 0, "if_nametoindex bond"))
+		goto out;
+
+	/* query default xdp-feature for bond device */
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags, 0,
+		       "bond query_opts.feature_flags"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link add veth0 type veth peer name veth1"),
+		       "add veth{0,1} pair"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link add veth2 type veth peer name veth3"),
+		       "add veth{2,3} pair"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link set veth0 master bond"),
+		       "add veth0 to master bond"))
+		goto out;
+
+	/* xdp-feature for bond device should be obtained from the single slave
+	 * device (veth0)
+	 */
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG,
+		       "bond query_opts.feature_flags"))
+		goto out;
+
+	veth1_idx = if_nametoindex("veth1");
+	if (!ASSERT_GE(veth1_idx, 0, "if_nametoindex veth1"))
+		goto out;
+
+	link = bpf_program__attach_xdp(skeletons->xdp_dummy->progs.xdp_dummy_prog,
+				       veth1_idx);
+	if (!ASSERT_OK_PTR(link, "attach program to veth1"))
+		goto out;
+
+	/* xdp-feature for veth0 are changed */
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG | NETDEV_XDP_ACT_NDO_XMIT |
+		       NETDEV_XDP_ACT_NDO_XMIT_SG,
+		       "bond query_opts.feature_flags"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link set veth2 master bond"),
+		       "add veth2 to master bond"))
+		goto out;
+
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	/* xdp-feature for bond device should be set to the most restrict
+	 * value obtained from attached slave devices (veth0 and veth2)
+	 */
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG,
+		       "bond query_opts.feature_flags"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link set veth2 nomaster"),
+		       "del veth2 to master bond"))
+		goto out;
+
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG | NETDEV_XDP_ACT_NDO_XMIT |
+		       NETDEV_XDP_ACT_NDO_XMIT_SG,
+		       "bond query_opts.feature_flags"))
+		goto out;
+
+	if (!ASSERT_OK(system("ip link set veth0 nomaster"),
+		       "del veth0 to master bond"))
+		goto out;
+
+	err = bpf_xdp_query(bond_idx, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "bond bpf_xdp_query"))
+		goto out;
+
+	ASSERT_EQ(query_opts.feature_flags, 0,
+		  "bond query_opts.feature_flags");
+out:
+	bpf_link__destroy(link);
+	system("ip link del veth0");
+	system("ip link del veth2");
+	system("ip link del bond");
+}
+
+static int libbpf_debug_print(enum libbpf_print_level level,
+			      const char *format, va_list args)
+{
+	if (level != LIBBPF_WARN)
+		vprintf(format, args);
+	return 0;
+}
+
+struct bond_test_case {
+	char *name;
+	int mode;
+	int xmit_policy;
+};
+
+static struct bond_test_case bond_test_cases[] = {
+	{ "xdp_bonding_roundrobin", BOND_MODE_ROUNDROBIN, BOND_XMIT_POLICY_LAYER23, },
+	{ "xdp_bonding_activebackup", BOND_MODE_ACTIVEBACKUP, BOND_XMIT_POLICY_LAYER23 },
+
+	{ "xdp_bonding_xor_layer2", BOND_MODE_XOR, BOND_XMIT_POLICY_LAYER2, },
+	{ "xdp_bonding_xor_layer23", BOND_MODE_XOR, BOND_XMIT_POLICY_LAYER23, },
+	{ "xdp_bonding_xor_layer34", BOND_MODE_XOR, BOND_XMIT_POLICY_LAYER34, },
+};
+
+void serial_test_xdp_bonding(void)
+{
+	libbpf_print_fn_t old_print_fn;
+	struct skeletons skeletons = {};
+	int i;
+
+	old_print_fn = libbpf_set_print(libbpf_debug_print);
+
+	root_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (!ASSERT_GE(root_netns_fd, 0, "open /proc/self/ns/net"))
+		goto out;
+
+	skeletons.xdp_dummy = xdp_dummy__open_and_load();
+	if (!ASSERT_OK_PTR(skeletons.xdp_dummy, "xdp_dummy__open_and_load"))
+		goto out;
+
+	skeletons.xdp_tx = xdp_tx__open_and_load();
+	if (!ASSERT_OK_PTR(skeletons.xdp_tx, "xdp_tx__open_and_load"))
+		goto out;
+
+	skeletons.xdp_redirect_multi_kern = xdp_redirect_multi_kern__open_and_load();
+	if (!ASSERT_OK_PTR(skeletons.xdp_redirect_multi_kern,
+			   "xdp_redirect_multi_kern__open_and_load"))
+		goto out;
+
+	if (test__start_subtest("xdp_bonding_attach"))
+		test_xdp_bonding_attach(&skeletons);
+
+	if (test__start_subtest("xdp_bonding_nested"))
+		test_xdp_bonding_nested(&skeletons);
+
+	if (test__start_subtest("xdp_bonding_features"))
+		test_xdp_bonding_features(&skeletons);
+
+	for (i = 0; i < ARRAY_SIZE(bond_test_cases); i++) {
+		struct bond_test_case *test_case = &bond_test_cases[i];
+
+		if (test__start_subtest(test_case->name))
+			test_xdp_bonding_with_mode(
+				&skeletons,
+				test_case->mode,
+				test_case->xmit_policy);
+	}
+
+	if (test__start_subtest("xdp_bonding_redirect_multi"))
+		test_xdp_bonding_redirect_multi(&skeletons);
+
+out:
+	xdp_dummy__destroy(skeletons.xdp_dummy);
+	xdp_tx__destroy(skeletons.xdp_tx);
+	xdp_redirect_multi_kern__destroy(skeletons.xdp_redirect_multi_kern);
+
+	libbpf_set_print(old_print_fn);
+	if (root_netns_fd >= 0)
+		close(root_netns_fd);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c
new file mode 100644
index 000000000000..76967d8ace9c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_bpf2bpf.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <net/if.h>
+#include "test_xdp.skel.h"
+#include "test_xdp_bpf2bpf.skel.h"
+
+struct meta {
+	int ifindex;
+	int pkt_len;
+};
+
+struct test_ctx_s {
+	bool passed;
+	int pkt_size;
+};
+
+struct test_ctx_s test_ctx;
+
+static void on_sample(void *ctx, int cpu, void *data, __u32 size)
+{
+	struct meta *meta = (struct meta *)data;
+	struct ipv4_packet *trace_pkt_v4 = data + sizeof(*meta);
+	unsigned char *raw_pkt = data + sizeof(*meta);
+	struct test_ctx_s *tst_ctx = ctx;
+
+	ASSERT_GE(size, sizeof(pkt_v4) + sizeof(*meta), "check_size");
+	ASSERT_EQ(meta->ifindex, if_nametoindex("lo"), "check_meta_ifindex");
+	ASSERT_EQ(meta->pkt_len, tst_ctx->pkt_size, "check_meta_pkt_len");
+	ASSERT_EQ(memcmp(trace_pkt_v4, &pkt_v4, sizeof(pkt_v4)), 0,
+		  "check_packet_content");
+
+	if (meta->pkt_len > sizeof(pkt_v4)) {
+		for (int i = 0; i < meta->pkt_len - sizeof(pkt_v4); i++)
+			ASSERT_EQ(raw_pkt[i + sizeof(pkt_v4)], (unsigned char)i,
+				  "check_packet_content");
+	}
+
+	tst_ctx->passed = true;
+}
+
+#define BUF_SZ	9000
+
+static void run_xdp_bpf2bpf_pkt_size(int pkt_fd, struct perf_buffer *pb,
+				     struct test_xdp_bpf2bpf *ftrace_skel,
+				     int pkt_size)
+{
+	__u8 *buf, *buf_in;
+	int err;
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	if (!ASSERT_LE(pkt_size, BUF_SZ, "pkt_size") ||
+	    !ASSERT_GE(pkt_size, sizeof(pkt_v4), "pkt_size"))
+		return;
+
+	buf_in = malloc(BUF_SZ);
+	if (!ASSERT_OK_PTR(buf_in, "buf_in malloc()"))
+		return;
+
+	buf = malloc(BUF_SZ);
+	if (!ASSERT_OK_PTR(buf, "buf malloc()")) {
+		free(buf_in);
+		return;
+	}
+
+	test_ctx.passed = false;
+	test_ctx.pkt_size = pkt_size;
+
+	memcpy(buf_in, &pkt_v4, sizeof(pkt_v4));
+	if (pkt_size > sizeof(pkt_v4)) {
+		for (int i = 0; i < (pkt_size - sizeof(pkt_v4)); i++)
+			buf_in[i + sizeof(pkt_v4)] = i;
+	}
+
+	/* Run test program */
+	topts.data_in = buf_in;
+	topts.data_size_in = pkt_size;
+	topts.data_out = buf;
+	topts.data_size_out = BUF_SZ;
+
+	err = bpf_prog_test_run_opts(pkt_fd, &topts);
+
+	ASSERT_OK(err, "ipv4");
+	ASSERT_EQ(topts.retval, XDP_PASS, "ipv4 retval");
+	ASSERT_EQ(topts.data_size_out, pkt_size, "ipv4 size");
+
+	/* Make sure bpf_xdp_output() was triggered and it sent the expected
+	 * data to the perf ring buffer.
+	 */
+	err = perf_buffer__poll(pb, 100);
+
+	ASSERT_GE(err, 0, "perf_buffer__poll");
+	ASSERT_TRUE(test_ctx.passed, "test passed");
+	/* Verify test results */
+	ASSERT_EQ(ftrace_skel->bss->test_result_fentry, if_nametoindex("lo"),
+		  "fentry result");
+	ASSERT_EQ(ftrace_skel->bss->test_result_fexit, XDP_PASS, "fexit result");
+
+	free(buf);
+	free(buf_in);
+}
+
+void test_xdp_bpf2bpf(void)
+{
+	int err, pkt_fd, map_fd;
+	int pkt_sizes[] = {sizeof(pkt_v4), 1024, 4100, 8200};
+	struct iptnl_info value4 = {.family = AF_INET6};
+	struct test_xdp *pkt_skel = NULL;
+	struct test_xdp_bpf2bpf *ftrace_skel = NULL;
+	struct vip key4 = {.protocol = 6, .family = AF_INET};
+	struct bpf_program *prog;
+	struct perf_buffer *pb = NULL;
+
+	/* Load XDP program to introspect */
+	pkt_skel = test_xdp__open_and_load();
+	if (!ASSERT_OK_PTR(pkt_skel, "test_xdp__open_and_load"))
+		return;
+
+	pkt_fd = bpf_program__fd(pkt_skel->progs._xdp_tx_iptunnel);
+
+	map_fd = bpf_map__fd(pkt_skel->maps.vip2tnl);
+	bpf_map_update_elem(map_fd, &key4, &value4, 0);
+
+	/* Load trace program */
+	ftrace_skel = test_xdp_bpf2bpf__open();
+	if (!ASSERT_OK_PTR(ftrace_skel, "test_xdp_bpf2bpf__open"))
+		goto out;
+
+	/* Demonstrate the bpf_program__set_attach_target() API rather than
+	 * the load with options, i.e. opts.attach_prog_fd.
+	 */
+	prog = ftrace_skel->progs.trace_on_entry;
+	bpf_program__set_expected_attach_type(prog, BPF_TRACE_FENTRY);
+	bpf_program__set_attach_target(prog, pkt_fd, "_xdp_tx_iptunnel");
+
+	prog = ftrace_skel->progs.trace_on_exit;
+	bpf_program__set_expected_attach_type(prog, BPF_TRACE_FEXIT);
+	bpf_program__set_attach_target(prog, pkt_fd, "_xdp_tx_iptunnel");
+
+	err = test_xdp_bpf2bpf__load(ftrace_skel);
+	if (!ASSERT_OK(err, "test_xdp_bpf2bpf__load"))
+		goto out;
+
+	err = test_xdp_bpf2bpf__attach(ftrace_skel);
+	if (!ASSERT_OK(err, "test_xdp_bpf2bpf__attach"))
+		goto out;
+
+	/* Set up perf buffer */
+	pb = perf_buffer__new(bpf_map__fd(ftrace_skel->maps.perf_buf_map), 8,
+			      on_sample, NULL, &test_ctx, NULL);
+	if (!ASSERT_OK_PTR(pb, "perf_buf__new"))
+		goto out;
+
+	for (int i = 0; i < ARRAY_SIZE(pkt_sizes); i++)
+		run_xdp_bpf2bpf_pkt_size(pkt_fd, pb, ftrace_skel,
+					 pkt_sizes[i]);
+out:
+	perf_buffer__free(pb);
+	test_xdp__destroy(pkt_skel);
+	test_xdp_bpf2bpf__destroy(ftrace_skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
new file mode 100644
index 000000000000..ee94c281888a
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_context_test_run.c
@@ -0,0 +1,512 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_xdp_context_test_run.skel.h"
+#include "test_xdp_meta.skel.h"
+
+#define RX_NAME "veth0"
+#define TX_NAME "veth1"
+#define TX_NETNS "xdp_context_tx"
+#define RX_NETNS "xdp_context_rx"
+#define TAP_NAME "tap0"
+#define DUMMY_NAME "dum0"
+#define TAP_NETNS "xdp_context_tuntap"
+
+#define TEST_PAYLOAD_LEN 32
+static const __u8 test_payload[TEST_PAYLOAD_LEN] = {
+	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+	0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+	0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+	0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+};
+
+void test_xdp_context_error(int prog_fd, struct bpf_test_run_opts opts,
+			    __u32 data_meta, __u32 data, __u32 data_end,
+			    __u32 ingress_ifindex, __u32 rx_queue_index,
+			    __u32 egress_ifindex)
+{
+	struct xdp_md ctx = {
+		.data = data,
+		.data_end = data_end,
+		.data_meta = data_meta,
+		.ingress_ifindex = ingress_ifindex,
+		.rx_queue_index = rx_queue_index,
+		.egress_ifindex = egress_ifindex,
+	};
+	int err;
+
+	opts.ctx_in = &ctx;
+	opts.ctx_size_in = sizeof(ctx);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_EQ(errno, EINVAL, "errno-EINVAL");
+	ASSERT_ERR(err, "bpf_prog_test_run");
+}
+
+void test_xdp_context_test_run(void)
+{
+	struct test_xdp_context_test_run *skel = NULL;
+	char data[sizeof(pkt_v4) + sizeof(__u32)];
+	char bad_ctx[sizeof(struct xdp_md) + 1];
+	struct xdp_md ctx_in, ctx_out;
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .data_size_in = sizeof(data),
+			    .ctx_out = &ctx_out,
+			    .ctx_size_out = sizeof(ctx_out),
+			    .repeat = 1,
+		);
+	int err, prog_fd;
+
+	skel = test_xdp_context_test_run__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		return;
+	prog_fd = bpf_program__fd(skel->progs.xdp_context);
+
+	/* Data past the end of the kernel's struct xdp_md must be 0 */
+	bad_ctx[sizeof(bad_ctx) - 1] = 1;
+	opts.ctx_in = bad_ctx;
+	opts.ctx_size_in = sizeof(bad_ctx);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_EQ(errno, E2BIG, "extradata-errno");
+	ASSERT_ERR(err, "bpf_prog_test_run(extradata)");
+
+	*(__u32 *)data = XDP_PASS;
+	*(struct ipv4_packet *)(data + sizeof(__u32)) = pkt_v4;
+	opts.ctx_in = &ctx_in;
+	opts.ctx_size_in = sizeof(ctx_in);
+	memset(&ctx_in, 0, sizeof(ctx_in));
+	ctx_in.data_meta = 0;
+	ctx_in.data = sizeof(__u32);
+	ctx_in.data_end = ctx_in.data + sizeof(pkt_v4);
+	err = bpf_prog_test_run_opts(prog_fd, &opts);
+	ASSERT_OK(err, "bpf_prog_test_run(valid)");
+	ASSERT_EQ(opts.retval, XDP_PASS, "valid-retval");
+	ASSERT_EQ(opts.data_size_out, sizeof(pkt_v4), "valid-datasize");
+	ASSERT_EQ(opts.ctx_size_out, opts.ctx_size_in, "valid-ctxsize");
+	ASSERT_EQ(ctx_out.data_meta, 0, "valid-datameta");
+	ASSERT_EQ(ctx_out.data, 0, "valid-data");
+	ASSERT_EQ(ctx_out.data_end, sizeof(pkt_v4), "valid-dataend");
+
+	/* Meta data's size must be a multiple of 4 */
+	test_xdp_context_error(prog_fd, opts, 0, 1, sizeof(data), 0, 0, 0);
+
+	/* data_meta must reference the start of data */
+	test_xdp_context_error(prog_fd, opts, 4, sizeof(__u32), sizeof(data),
+			       0, 0, 0);
+
+	/* Meta data must be 255 bytes or smaller */
+	test_xdp_context_error(prog_fd, opts, 0, 256, sizeof(data), 0, 0, 0);
+
+	/* Total size of data must be data_end - data_meta or larger */
+	test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32),
+			       sizeof(data) + 1, 0, 0, 0);
+
+	/* RX queue cannot be specified without specifying an ingress */
+	test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32), sizeof(data),
+			       0, 1, 0);
+
+	/* Interface 1 is always the loopback interface which always has only
+	 * one RX queue (index 0). This makes index 1 an invalid rx queue index
+	 * for interface 1.
+	 */
+	test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32), sizeof(data),
+			       1, 1, 0);
+
+	/* The egress cannot be specified */
+	test_xdp_context_error(prog_fd, opts, 0, sizeof(__u32), sizeof(data),
+			       0, 0, 1);
+
+	test_xdp_context_test_run__destroy(skel);
+}
+
+static int send_test_packet(int ifindex)
+{
+	int n, sock = -1;
+	__u8 packet[sizeof(struct ethhdr) + TEST_PAYLOAD_LEN];
+
+	/* We use the Ethernet header only to identify the test packet */
+	struct ethhdr eth = {
+		.h_source = { 0x12, 0x34, 0xDE, 0xAD, 0xBE, 0xEF },
+	};
+
+	memcpy(packet, &eth, sizeof(eth));
+	memcpy(packet + sizeof(eth), test_payload, TEST_PAYLOAD_LEN);
+
+	sock = socket(AF_PACKET, SOCK_RAW, IPPROTO_RAW);
+	if (!ASSERT_GE(sock, 0, "socket"))
+		goto err;
+
+	struct sockaddr_ll saddr = {
+		.sll_family = PF_PACKET,
+		.sll_ifindex = ifindex,
+		.sll_halen = ETH_ALEN
+	};
+	n = sendto(sock, packet, sizeof(packet), 0, (struct sockaddr *)&saddr,
+		   sizeof(saddr));
+	if (!ASSERT_EQ(n, sizeof(packet), "sendto"))
+		goto err;
+
+	close(sock);
+	return 0;
+
+err:
+	if (sock >= 0)
+		close(sock);
+	return -1;
+}
+
+static int write_test_packet(int tap_fd)
+{
+	__u8 packet[sizeof(struct ethhdr) + TEST_PAYLOAD_LEN];
+	int n;
+
+	/* The Ethernet header is mostly not relevant. We use it to identify the
+	 * test packet and some BPF helpers we exercise expect to operate on
+	 * Ethernet frames carrying IP packets. Pretend that's the case.
+	 */
+	struct ethhdr eth = {
+		.h_source = { 0x12, 0x34, 0xDE, 0xAD, 0xBE, 0xEF },
+		.h_proto = htons(ETH_P_IP),
+	};
+
+	memcpy(packet, &eth, sizeof(eth));
+	memcpy(packet + sizeof(struct ethhdr), test_payload, TEST_PAYLOAD_LEN);
+
+	n = write(tap_fd, packet, sizeof(packet));
+	if (!ASSERT_EQ(n, sizeof(packet), "write packet"))
+		return -1;
+
+	return 0;
+}
+
+static void dump_err_stream(const struct bpf_program *prog)
+{
+	char buf[512];
+	int ret;
+
+	ret = 0;
+	do {
+		ret = bpf_prog_stream_read(bpf_program__fd(prog),
+					   BPF_STREAM_STDERR, buf, sizeof(buf),
+					   NULL);
+		if (ret > 0)
+			fwrite(buf, sizeof(buf[0]), ret, stderr);
+	} while (ret > 0);
+}
+
+void test_xdp_context_veth(void)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	struct netns_obj *rx_ns = NULL, *tx_ns = NULL;
+	struct bpf_program *tc_prog, *xdp_prog;
+	struct test_xdp_meta *skel = NULL;
+	struct nstoken *nstoken = NULL;
+	int rx_ifindex, tx_ifindex;
+	int ret;
+
+	tx_ns = netns_new(TX_NETNS, false);
+	if (!ASSERT_OK_PTR(tx_ns, "create tx_ns"))
+		return;
+
+	rx_ns = netns_new(RX_NETNS, false);
+	if (!ASSERT_OK_PTR(rx_ns, "create rx_ns"))
+		goto close;
+
+	SYS(close, "ip link add " RX_NAME " netns " RX_NETNS
+	    " type veth peer name " TX_NAME " netns " TX_NETNS);
+
+	nstoken = open_netns(RX_NETNS);
+	if (!ASSERT_OK_PTR(nstoken, "setns rx_ns"))
+		goto close;
+
+	SYS(close, "ip link set dev " RX_NAME " up");
+
+	skel = test_xdp_meta__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skeleton"))
+		goto close;
+
+	rx_ifindex = if_nametoindex(RX_NAME);
+	if (!ASSERT_GE(rx_ifindex, 0, "if_nametoindex rx"))
+		goto close;
+
+	tc_hook.ifindex = rx_ifindex;
+	ret = bpf_tc_hook_create(&tc_hook);
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		goto close;
+
+	tc_prog = bpf_object__find_program_by_name(skel->obj, "ing_cls");
+	if (!ASSERT_OK_PTR(tc_prog, "open ing_cls prog"))
+		goto close;
+
+	tc_opts.prog_fd = bpf_program__fd(tc_prog);
+	ret = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		goto close;
+
+	xdp_prog = bpf_object__find_program_by_name(skel->obj, "ing_xdp");
+	if (!ASSERT_OK_PTR(xdp_prog, "open ing_xdp prog"))
+		goto close;
+
+	ret = bpf_xdp_attach(rx_ifindex,
+			     bpf_program__fd(xdp_prog),
+			     0, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto close;
+
+	close_netns(nstoken);
+
+	nstoken = open_netns(TX_NETNS);
+	if (!ASSERT_OK_PTR(nstoken, "setns tx_ns"))
+		goto close;
+
+	SYS(close, "ip link set dev " TX_NAME " up");
+
+	tx_ifindex = if_nametoindex(TX_NAME);
+	if (!ASSERT_GE(tx_ifindex, 0, "if_nametoindex tx"))
+		goto close;
+
+	skel->bss->test_pass = false;
+
+	ret = send_test_packet(tx_ifindex);
+	if (!ASSERT_OK(ret, "send_test_packet"))
+		goto close;
+
+	if (!ASSERT_TRUE(skel->bss->test_pass, "test_pass"))
+		dump_err_stream(tc_prog);
+
+close:
+	close_netns(nstoken);
+	test_xdp_meta__destroy(skel);
+	netns_free(rx_ns);
+	netns_free(tx_ns);
+}
+
+static void test_tuntap(struct bpf_program *xdp_prog,
+			struct bpf_program *tc_prio_1_prog,
+			struct bpf_program *tc_prio_2_prog,
+			bool *test_pass)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	struct netns_obj *ns = NULL;
+	int tap_fd = -1;
+	int tap_ifindex;
+	int ret;
+
+	*test_pass = false;
+
+	ns = netns_new(TAP_NETNS, true);
+	if (!ASSERT_OK_PTR(ns, "create and open ns"))
+		return;
+
+	tap_fd = open_tuntap(TAP_NAME, true);
+	if (!ASSERT_GE(tap_fd, 0, "open_tuntap"))
+		goto close;
+
+	SYS(close, "ip link set dev " TAP_NAME " up");
+
+	tap_ifindex = if_nametoindex(TAP_NAME);
+	if (!ASSERT_GE(tap_ifindex, 0, "if_nametoindex"))
+		goto close;
+
+	tc_hook.ifindex = tap_ifindex;
+	ret = bpf_tc_hook_create(&tc_hook);
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		goto close;
+
+	tc_opts.prog_fd = bpf_program__fd(tc_prio_1_prog);
+	ret = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		goto close;
+
+	if (tc_prio_2_prog) {
+		LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 2,
+			    .prog_fd = bpf_program__fd(tc_prio_2_prog));
+
+		ret = bpf_tc_attach(&tc_hook, &tc_opts);
+		if (!ASSERT_OK(ret, "bpf_tc_attach"))
+			goto close;
+	}
+
+	ret = bpf_xdp_attach(tap_ifindex, bpf_program__fd(xdp_prog),
+			     0, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto close;
+
+	ret = write_test_packet(tap_fd);
+	if (!ASSERT_OK(ret, "write_test_packet"))
+		goto close;
+
+	if (!ASSERT_TRUE(*test_pass, "test_pass"))
+		dump_err_stream(tc_prio_2_prog ? : tc_prio_1_prog);
+
+close:
+	if (tap_fd >= 0)
+		close(tap_fd);
+	netns_free(ns);
+}
+
+/* Write a packet to a tap dev and copy it to ingress of a dummy dev */
+static void test_tuntap_mirred(struct bpf_program *xdp_prog,
+			       struct bpf_program *tc_prog,
+			       bool *test_pass)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_INGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	struct netns_obj *ns = NULL;
+	int dummy_ifindex;
+	int tap_fd = -1;
+	int tap_ifindex;
+	int ret;
+
+	*test_pass = false;
+
+	ns = netns_new(TAP_NETNS, true);
+	if (!ASSERT_OK_PTR(ns, "netns_new"))
+		return;
+
+	/* Setup dummy interface */
+	SYS(close, "ip link add name " DUMMY_NAME " type dummy");
+	SYS(close, "ip link set dev " DUMMY_NAME " up");
+
+	dummy_ifindex = if_nametoindex(DUMMY_NAME);
+	if (!ASSERT_GE(dummy_ifindex, 0, "if_nametoindex"))
+		goto close;
+
+	tc_hook.ifindex = dummy_ifindex;
+	ret = bpf_tc_hook_create(&tc_hook);
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		goto close;
+
+	tc_opts.prog_fd = bpf_program__fd(tc_prog);
+	ret = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		goto close;
+
+	/* Setup TAP interface */
+	tap_fd = open_tuntap(TAP_NAME, true);
+	if (!ASSERT_GE(tap_fd, 0, "open_tuntap"))
+		goto close;
+
+	SYS(close, "ip link set dev " TAP_NAME " up");
+
+	tap_ifindex = if_nametoindex(TAP_NAME);
+	if (!ASSERT_GE(tap_ifindex, 0, "if_nametoindex"))
+		goto close;
+
+	ret = bpf_xdp_attach(tap_ifindex, bpf_program__fd(xdp_prog), 0, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto close;
+
+	/* Copy all packets received from TAP to dummy ingress */
+	SYS(close, "tc qdisc add dev " TAP_NAME " clsact");
+	SYS(close, "tc filter add dev " TAP_NAME " ingress "
+		   "protocol all matchall "
+		   "action mirred ingress mirror dev " DUMMY_NAME);
+
+	/* Receive a packet on TAP */
+	ret = write_test_packet(tap_fd);
+	if (!ASSERT_OK(ret, "write_test_packet"))
+		goto close;
+
+	if (!ASSERT_TRUE(*test_pass, "test_pass"))
+		dump_err_stream(tc_prog);
+
+close:
+	if (tap_fd >= 0)
+		close(tap_fd);
+	netns_free(ns);
+}
+
+void test_xdp_context_tuntap(void)
+{
+	struct test_xdp_meta *skel = NULL;
+
+	skel = test_xdp_meta__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skeleton"))
+		return;
+
+	if (test__start_subtest("data_meta"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.ing_cls,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_read"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.ing_cls_dynptr_read,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_slice"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.ing_cls_dynptr_slice,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_write"))
+		test_tuntap(skel->progs.ing_xdp_zalloc_meta,
+			    skel->progs.ing_cls_dynptr_write,
+			    skel->progs.ing_cls_dynptr_read,
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_slice_rdwr"))
+		test_tuntap(skel->progs.ing_xdp_zalloc_meta,
+			    skel->progs.ing_cls_dynptr_slice_rdwr,
+			    skel->progs.ing_cls_dynptr_slice,
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_offset"))
+		test_tuntap(skel->progs.ing_xdp_zalloc_meta,
+			    skel->progs.ing_cls_dynptr_offset_wr,
+			    skel->progs.ing_cls_dynptr_offset_rd,
+			    &skel->bss->test_pass);
+	if (test__start_subtest("dynptr_offset_oob"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.ing_cls_dynptr_offset_oob,
+			    skel->progs.ing_cls,
+			    &skel->bss->test_pass);
+	if (test__start_subtest("clone_data_meta_survives_data_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_data_meta_survives_data_write,
+				   &skel->bss->test_pass);
+	if (test__start_subtest("clone_data_meta_survives_meta_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_data_meta_survives_meta_write,
+				   &skel->bss->test_pass);
+	if (test__start_subtest("clone_meta_dynptr_survives_data_slice_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_meta_dynptr_survives_data_slice_write,
+				   &skel->bss->test_pass);
+	if (test__start_subtest("clone_meta_dynptr_survives_meta_slice_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_meta_dynptr_survives_meta_slice_write,
+				   &skel->bss->test_pass);
+	if (test__start_subtest("clone_meta_dynptr_rw_before_data_dynptr_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_meta_dynptr_rw_before_data_dynptr_write,
+				   &skel->bss->test_pass);
+	if (test__start_subtest("clone_meta_dynptr_rw_before_meta_dynptr_write"))
+		test_tuntap_mirred(skel->progs.ing_xdp,
+				   skel->progs.clone_meta_dynptr_rw_before_meta_dynptr_write,
+				   &skel->bss->test_pass);
+	/* Tests for BPF helpers which touch headroom */
+	if (test__start_subtest("helper_skb_vlan_push_pop"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.helper_skb_vlan_push_pop,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("helper_skb_adjust_room"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.helper_skb_adjust_room,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("helper_skb_change_head_tail"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.helper_skb_change_head_tail,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+	if (test__start_subtest("helper_skb_change_proto"))
+		test_tuntap(skel->progs.ing_xdp,
+			    skel->progs.helper_skb_change_proto,
+			    NULL, /* tc prio 2 */
+			    &skel->bss->test_pass);
+
+	test_xdp_meta__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c b/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c
new file mode 100644
index 000000000000..df27535995af
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_cpumap_attach.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <uapi/linux/bpf.h>
+#include <linux/if_link.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#include "test_xdp_with_cpumap_frags_helpers.skel.h"
+#include "test_xdp_with_cpumap_helpers.skel.h"
+
+#define IFINDEX_LO	1
+#define TEST_NS "cpu_attach_ns"
+
+static void test_xdp_with_cpumap_helpers(void)
+{
+	struct test_xdp_with_cpumap_helpers *skel = NULL;
+	struct bpf_prog_info info = {};
+	__u32 len = sizeof(info);
+	struct bpf_cpumap_val val = {
+		.qsize = 192,
+	};
+	int err, prog_fd, prog_redir_fd, map_fd;
+	struct nstoken *nstoken = NULL;
+	__u32 idx = 0;
+
+	SYS(out_close, "ip netns add %s", TEST_NS);
+	nstoken = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto out_close;
+	SYS(out_close, "ip link set dev lo up");
+
+	skel = test_xdp_with_cpumap_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_with_cpumap_helpers__open_and_load"))
+		return;
+
+	prog_redir_fd = bpf_program__fd(skel->progs.xdp_redir_prog);
+	err = bpf_xdp_attach(IFINDEX_LO, prog_redir_fd, XDP_FLAGS_SKB_MODE, NULL);
+	if (!ASSERT_OK(err, "Generic attach of program with 8-byte CPUMAP"))
+		goto out_close;
+
+	prog_fd = bpf_program__fd(skel->progs.xdp_dummy_cm);
+	map_fd = bpf_map__fd(skel->maps.cpu_map);
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto out_close;
+
+	val.bpf_prog.fd = prog_fd;
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_OK(err, "Add program to cpumap entry");
+
+	err = bpf_map_lookup_elem(map_fd, &idx, &val);
+	ASSERT_OK(err, "Read cpumap entry");
+	ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to cpumap entry prog_id");
+
+	/* send a packet to trigger any potential bugs in there */
+	char data[ETH_HLEN] = {};
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .data_size_in = sizeof(data),
+			    .flags = BPF_F_TEST_XDP_LIVE_FRAMES,
+			    .repeat = 1,
+		);
+	err = bpf_prog_test_run_opts(prog_redir_fd, &opts);
+	ASSERT_OK(err, "XDP test run");
+
+	/* wait for the packets to be flushed, then check that redirect has been
+	 * performed
+	 */
+	kern_sync_rcu();
+	ASSERT_NEQ(skel->bss->redirect_count, 0, "redirected packets");
+
+	err = bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
+	ASSERT_OK(err, "XDP program detach");
+
+	/* can not attach BPF_XDP_CPUMAP program to a device */
+	err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
+	if (!ASSERT_NEQ(err, 0, "Attach of BPF_XDP_CPUMAP program"))
+		bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
+
+	val.qsize = 192;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_prog);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add non-BPF_XDP_CPUMAP program to cpumap entry");
+
+	/* Try to attach BPF_XDP program with frags to cpumap when we have
+	 * already loaded a BPF_XDP program on the map
+	 */
+	idx = 1;
+	val.qsize = 192;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_cm_frags);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add BPF_XDP program with frags to cpumap entry");
+
+out_close:
+	close_netns(nstoken);
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+	test_xdp_with_cpumap_helpers__destroy(skel);
+}
+
+static void test_xdp_with_cpumap_frags_helpers(void)
+{
+	struct test_xdp_with_cpumap_frags_helpers *skel;
+	struct bpf_prog_info info = {};
+	__u32 len = sizeof(info);
+	struct bpf_cpumap_val val = {
+		.qsize = 192,
+	};
+	int err, frags_prog_fd, map_fd;
+	__u32 idx = 0;
+
+	skel = test_xdp_with_cpumap_frags_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_with_cpumap_helpers__open_and_load"))
+		return;
+
+	frags_prog_fd = bpf_program__fd(skel->progs.xdp_dummy_cm_frags);
+	map_fd = bpf_map__fd(skel->maps.cpu_map);
+	err = bpf_prog_get_info_by_fd(frags_prog_fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto out_close;
+
+	val.bpf_prog.fd = frags_prog_fd;
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_OK(err, "Add program to cpumap entry");
+
+	err = bpf_map_lookup_elem(map_fd, &idx, &val);
+	ASSERT_OK(err, "Read cpumap entry");
+	ASSERT_EQ(info.id, val.bpf_prog.id,
+		  "Match program id to cpumap entry prog_id");
+
+	/* Try to attach BPF_XDP program to cpumap when we have
+	 * already loaded a BPF_XDP program with frags on the map
+	 */
+	idx = 1;
+	val.qsize = 192;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_cm);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add BPF_XDP program to cpumap entry");
+
+out_close:
+	test_xdp_with_cpumap_frags_helpers__destroy(skel);
+}
+
+void test_xdp_cpumap_attach(void)
+{
+	if (test__start_subtest("CPUMAP with programs in entries"))
+		test_xdp_with_cpumap_helpers();
+
+	if (test__start_subtest("CPUMAP with frags programs in entries"))
+		test_xdp_with_cpumap_frags_helpers();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_dev_bound_only.c b/tools/testing/selftests/bpf/prog_tests/xdp_dev_bound_only.c
new file mode 100644
index 000000000000..7dd18c6d06c6
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_dev_bound_only.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <net/if.h>
+#include <test_progs.h>
+#include <network_helpers.h>
+
+#define LOCAL_NETNS "xdp_dev_bound_only_netns"
+
+static int load_dummy_prog(char *name, __u32 ifindex, __u32 flags)
+{
+	struct bpf_insn insns[] = { BPF_MOV64_IMM(BPF_REG_0, 0), BPF_EXIT_INSN() };
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+
+	opts.prog_flags = flags;
+	opts.prog_ifindex = ifindex;
+	return bpf_prog_load(BPF_PROG_TYPE_XDP, name, "GPL", insns, ARRAY_SIZE(insns), &opts);
+}
+
+/* A test case for bpf_offload_netdev->offload handling bug:
+ * - create a veth device (does not support offload);
+ * - create a device bound XDP program with BPF_F_XDP_DEV_BOUND_ONLY flag
+ *   (such programs are not offloaded);
+ * - create a device bound XDP program without flags (such programs are offloaded).
+ * This might lead to 'BUG: kernel NULL pointer dereference'.
+ */
+void test_xdp_dev_bound_only_offdev(void)
+{
+	struct nstoken *tok = NULL;
+	__u32 ifindex;
+	int fd1 = -1;
+	int fd2 = -1;
+
+	SYS(out, "ip netns add " LOCAL_NETNS);
+	tok = open_netns(LOCAL_NETNS);
+	if (!ASSERT_OK_PTR(tok, "open_netns"))
+		goto out;
+	SYS(out, "ip link add eth42 type veth");
+	ifindex = if_nametoindex("eth42");
+	if (!ASSERT_NEQ(ifindex, 0, "if_nametoindex")) {
+		perror("if_nametoindex");
+		goto out;
+	}
+	fd1 = load_dummy_prog("dummy1", ifindex, BPF_F_XDP_DEV_BOUND_ONLY);
+	if (!ASSERT_GE(fd1, 0, "load_dummy_prog #1")) {
+		perror("load_dummy_prog #1");
+		goto out;
+	}
+	/* Program with ifindex is considered offloaded, however veth
+	 * does not support offload => error should be reported.
+	 */
+	fd2 = load_dummy_prog("dummy2", ifindex, 0);
+	ASSERT_EQ(fd2, -EINVAL, "load_dummy_prog #2 (offloaded)");
+
+out:
+	close(fd1);
+	close(fd2);
+	close_netns(tok);
+	/* eth42 was added inside netns, removing the netns will
+	 * also remove eth42 veth pair.
+	 */
+	SYS_NOFAIL("ip netns del " LOCAL_NETNS);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c b/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
new file mode 100644
index 000000000000..a8ab05216c38
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <arpa/inet.h>
+#include <uapi/linux/bpf.h>
+#include <linux/if_link.h>
+#include <network_helpers.h>
+#include <net/if.h>
+#include <test_progs.h>
+
+#include "test_xdp_devmap_helpers.skel.h"
+#include "test_xdp_devmap_tailcall.skel.h"
+#include "test_xdp_with_devmap_frags_helpers.skel.h"
+#include "test_xdp_with_devmap_helpers.skel.h"
+
+#define IFINDEX_LO 1
+#define TEST_NS "devmap_attach_ns"
+
+static void test_xdp_with_devmap_helpers(void)
+{
+	struct test_xdp_with_devmap_helpers *skel = NULL;
+	struct bpf_prog_info info = {};
+	struct bpf_devmap_val val = {
+		.ifindex = IFINDEX_LO,
+	};
+	__u32 len = sizeof(info);
+	int err, dm_fd, dm_fd_redir, map_fd;
+	struct nstoken *nstoken = NULL;
+	char data[ETH_HLEN] = {};
+	__u32 idx = 0;
+
+	SYS(out_close, "ip netns add %s", TEST_NS);
+	nstoken = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto out_close;
+	SYS(out_close, "ip link set dev lo up");
+
+	skel = test_xdp_with_devmap_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
+		goto out_close;
+
+	dm_fd_redir = bpf_program__fd(skel->progs.xdp_redir_prog);
+	err = bpf_xdp_attach(IFINDEX_LO, dm_fd_redir, XDP_FLAGS_SKB_MODE, NULL);
+	if (!ASSERT_OK(err, "Generic attach of program with 8-byte devmap"))
+		goto out_close;
+
+	dm_fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
+	map_fd = bpf_map__fd(skel->maps.dm_ports);
+	err = bpf_prog_get_info_by_fd(dm_fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto out_close;
+
+	val.bpf_prog.fd = dm_fd;
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_OK(err, "Add program to devmap entry");
+
+	err = bpf_map_lookup_elem(map_fd, &idx, &val);
+	ASSERT_OK(err, "Read devmap entry");
+	ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to devmap entry prog_id");
+
+	/* send a packet to trigger any potential bugs in there */
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .data_size_in = sizeof(data),
+			    .flags = BPF_F_TEST_XDP_LIVE_FRAMES,
+			    .repeat = 1,
+		);
+	err = bpf_prog_test_run_opts(dm_fd_redir, &opts);
+	ASSERT_OK(err, "XDP test run");
+
+	/* wait for the packets to be flushed */
+	kern_sync_rcu();
+
+	err = bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
+	ASSERT_OK(err, "XDP program detach");
+
+	/* can not attach BPF_XDP_DEVMAP program to a device */
+	err = bpf_xdp_attach(IFINDEX_LO, dm_fd, XDP_FLAGS_SKB_MODE, NULL);
+	if (!ASSERT_NEQ(err, 0, "Attach of BPF_XDP_DEVMAP program"))
+		bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_SKB_MODE, NULL);
+
+	val.ifindex = 1;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_prog);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add non-BPF_XDP_DEVMAP program to devmap entry");
+
+	/* Try to attach BPF_XDP program with frags to devmap when we have
+	 * already loaded a BPF_XDP program on the map
+	 */
+	idx = 1;
+	val.ifindex = 1;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add BPF_XDP program with frags to devmap entry");
+
+out_close:
+	close_netns(nstoken);
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+	test_xdp_with_devmap_helpers__destroy(skel);
+}
+
+static void test_neg_xdp_devmap_helpers(void)
+{
+	struct test_xdp_devmap_helpers *skel;
+
+	skel = test_xdp_devmap_helpers__open_and_load();
+	if (!ASSERT_EQ(skel, NULL,
+		    "Load of XDP program accessing egress ifindex without attach type")) {
+		test_xdp_devmap_helpers__destroy(skel);
+	}
+}
+
+static void test_xdp_devmap_tailcall(enum bpf_attach_type prog_dev,
+				     enum bpf_attach_type prog_tail,
+				     bool expect_reject)
+{
+	struct test_xdp_devmap_tailcall *skel;
+	int err;
+
+	skel = test_xdp_devmap_tailcall__open();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_devmap_tailcall__open"))
+		return;
+
+	bpf_program__set_expected_attach_type(skel->progs.xdp_devmap, prog_dev);
+	bpf_program__set_expected_attach_type(skel->progs.xdp_entry, prog_tail);
+
+	err = test_xdp_devmap_tailcall__load(skel);
+	if (expect_reject)
+		ASSERT_ERR(err, "test_xdp_devmap_tailcall__load");
+	else
+		ASSERT_OK(err, "test_xdp_devmap_tailcall__load");
+
+	test_xdp_devmap_tailcall__destroy(skel);
+}
+
+static void test_xdp_with_devmap_frags_helpers(void)
+{
+	struct test_xdp_with_devmap_frags_helpers *skel;
+	struct bpf_prog_info info = {};
+	struct bpf_devmap_val val = {
+		.ifindex = IFINDEX_LO,
+	};
+	__u32 len = sizeof(info);
+	int err, dm_fd_frags, map_fd;
+	__u32 idx = 0;
+
+	skel = test_xdp_with_devmap_frags_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
+		return;
+
+	dm_fd_frags = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
+	map_fd = bpf_map__fd(skel->maps.dm_ports);
+	err = bpf_prog_get_info_by_fd(dm_fd_frags, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto out_close;
+
+	val.bpf_prog.fd = dm_fd_frags;
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_OK(err, "Add frags program to devmap entry");
+
+	err = bpf_map_lookup_elem(map_fd, &idx, &val);
+	ASSERT_OK(err, "Read devmap entry");
+	ASSERT_EQ(info.id, val.bpf_prog.id,
+		  "Match program id to devmap entry prog_id");
+
+	/* Try to attach BPF_XDP program to devmap when we have
+	 * already loaded a BPF_XDP program with frags on the map
+	 */
+	idx = 1;
+	val.ifindex = 1;
+	val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_NEQ(err, 0, "Add BPF_XDP program to devmap entry");
+
+out_close:
+	test_xdp_with_devmap_frags_helpers__destroy(skel);
+}
+
+static void test_xdp_with_devmap_helpers_veth(void)
+{
+	struct test_xdp_with_devmap_helpers *skel = NULL;
+	struct bpf_prog_info info = {};
+	struct bpf_devmap_val val = {};
+	struct nstoken *nstoken = NULL;
+	__u32 len = sizeof(info);
+	int err, dm_fd, dm_fd_redir, map_fd, ifindex_dst;
+	char data[ETH_HLEN] = {};
+	__u32 idx = 0;
+
+	SYS(out_close, "ip netns add %s", TEST_NS);
+	nstoken = open_netns(TEST_NS);
+	if (!ASSERT_OK_PTR(nstoken, "open_netns"))
+		goto out_close;
+
+	SYS(out_close, "ip link add veth_src type veth peer name veth_dst");
+	SYS(out_close, "ip link set dev veth_src up");
+	SYS(out_close, "ip link set dev veth_dst up");
+
+	val.ifindex = if_nametoindex("veth_src");
+	ifindex_dst = if_nametoindex("veth_dst");
+	if (!ASSERT_NEQ(val.ifindex, 0, "val.ifindex") ||
+	    !ASSERT_NEQ(ifindex_dst, 0, "ifindex_dst"))
+		goto out_close;
+
+	skel = test_xdp_with_devmap_helpers__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
+		goto out_close;
+
+	dm_fd_redir = bpf_program__fd(skel->progs.xdp_redir_prog);
+	err = bpf_xdp_attach(val.ifindex, dm_fd_redir, XDP_FLAGS_DRV_MODE, NULL);
+	if (!ASSERT_OK(err, "Attach of program with 8-byte devmap"))
+		goto out_close;
+
+	dm_fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
+	map_fd = bpf_map__fd(skel->maps.dm_ports);
+	err = bpf_prog_get_info_by_fd(dm_fd, &info, &len);
+	if (!ASSERT_OK(err, "bpf_prog_get_info_by_fd"))
+		goto out_close;
+
+	val.bpf_prog.fd = dm_fd;
+	err = bpf_map_update_elem(map_fd, &idx, &val, 0);
+	ASSERT_OK(err, "Add program to devmap entry");
+
+	err = bpf_map_lookup_elem(map_fd, &idx, &val);
+	ASSERT_OK(err, "Read devmap entry");
+	ASSERT_EQ(info.id, val.bpf_prog.id, "Match program id to devmap entry prog_id");
+
+	/* attach dummy to other side to enable reception */
+	dm_fd = bpf_program__fd(skel->progs.xdp_dummy_prog);
+	err = bpf_xdp_attach(ifindex_dst, dm_fd, XDP_FLAGS_DRV_MODE, NULL);
+	if (!ASSERT_OK(err, "Attach of dummy XDP"))
+		goto out_close;
+
+	/* send a packet to trigger any potential bugs in there */
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .data_size_in = sizeof(data),
+			    .flags = BPF_F_TEST_XDP_LIVE_FRAMES,
+			    .repeat = 1,
+		);
+	err = bpf_prog_test_run_opts(dm_fd_redir, &opts);
+	ASSERT_OK(err, "XDP test run");
+
+	/* wait for the packets to be flushed */
+	kern_sync_rcu();
+
+	err = bpf_xdp_detach(val.ifindex, XDP_FLAGS_DRV_MODE, NULL);
+	ASSERT_OK(err, "XDP program detach");
+
+	err = bpf_xdp_detach(ifindex_dst, XDP_FLAGS_DRV_MODE, NULL);
+	ASSERT_OK(err, "XDP program detach");
+
+out_close:
+	close_netns(nstoken);
+	SYS_NOFAIL("ip netns del %s", TEST_NS);
+	test_xdp_with_devmap_helpers__destroy(skel);
+}
+
+void serial_test_xdp_devmap_attach(void)
+{
+	if (test__start_subtest("DEVMAP with programs in entries"))
+		test_xdp_with_devmap_helpers();
+
+	if (test__start_subtest("DEVMAP with frags programs in entries"))
+		test_xdp_with_devmap_frags_helpers();
+
+	if (test__start_subtest("Verifier check of DEVMAP programs")) {
+		test_neg_xdp_devmap_helpers();
+		test_xdp_devmap_tailcall(BPF_XDP_DEVMAP, BPF_XDP_DEVMAP, false);
+		test_xdp_devmap_tailcall(0, 0, true);
+		test_xdp_devmap_tailcall(BPF_XDP_DEVMAP, 0, true);
+		test_xdp_devmap_tailcall(0, BPF_XDP_DEVMAP, true);
+	}
+
+	if (test__start_subtest("DEVMAP with programs in entries on veth"))
+		test_xdp_with_devmap_helpers_veth();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
new file mode 100644
index 000000000000..dd34b0cc4b4e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c
@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <net/if.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_link.h>
+#include <linux/ipv6.h>
+#include <linux/in6.h>
+#include <netinet/udp.h>
+#include <bpf/bpf_endian.h>
+#include <uapi/linux/netdev.h>
+#include "test_xdp_do_redirect.skel.h"
+#include "xdp_dummy.skel.h"
+
+struct udp_packet {
+	struct ethhdr eth;
+	struct ipv6hdr iph;
+	struct udphdr udp;
+	__u8 payload[64 - sizeof(struct udphdr)
+		     - sizeof(struct ethhdr) - sizeof(struct ipv6hdr)];
+} __packed;
+
+static struct udp_packet pkt_udp = {
+	.eth.h_proto = __bpf_constant_htons(ETH_P_IPV6),
+	.eth.h_dest = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55},
+	.eth.h_source = {0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb},
+	.iph.version = 6,
+	.iph.nexthdr = IPPROTO_UDP,
+	.iph.payload_len = bpf_htons(sizeof(struct udp_packet)
+				     - offsetof(struct udp_packet, udp)),
+	.iph.hop_limit = 2,
+	.iph.saddr.s6_addr16 = {bpf_htons(0xfc00), 0, 0, 0, 0, 0, 0, bpf_htons(1)},
+	.iph.daddr.s6_addr16 = {bpf_htons(0xfc00), 0, 0, 0, 0, 0, 0, bpf_htons(2)},
+	.udp.source = bpf_htons(1),
+	.udp.dest = bpf_htons(1),
+	.udp.len = bpf_htons(sizeof(struct udp_packet)
+			     - offsetof(struct udp_packet, udp)),
+	.payload = {0x42}, /* receiver XDP program matches on this */
+};
+
+static int attach_tc_prog(struct bpf_tc_hook *hook, int fd)
+{
+	DECLARE_LIBBPF_OPTS(bpf_tc_opts, opts, .handle = 1, .priority = 1, .prog_fd = fd);
+	int ret;
+
+	ret = bpf_tc_hook_create(hook);
+	if (!ASSERT_OK(ret, "create tc hook"))
+		return ret;
+
+	ret = bpf_tc_attach(hook, &opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+		bpf_tc_hook_destroy(hook);
+		return ret;
+	}
+
+	return 0;
+}
+
+/* The maximum permissible size is: PAGE_SIZE - sizeof(struct xdp_page_head) -
+ * SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) - XDP_PACKET_HEADROOM =
+ * 3408 bytes for 64-byte cacheline and 3216 for 256-byte one.
+ */
+#if defined(__s390x__)
+#define MAX_PKT_SIZE 3216
+#else
+#define MAX_PKT_SIZE 3408
+#endif
+
+#define PAGE_SIZE_4K  4096
+#define PAGE_SIZE_64K 65536
+
+static void test_max_pkt_size(int fd)
+{
+	char data[PAGE_SIZE_64K + 1] = {};
+	int err;
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .flags = BPF_F_TEST_XDP_LIVE_FRAMES,
+			    .repeat = 1,
+		);
+
+	if (getpagesize() == PAGE_SIZE_64K)
+		opts.data_size_in = MAX_PKT_SIZE + PAGE_SIZE_64K - PAGE_SIZE_4K;
+	else
+		opts.data_size_in = MAX_PKT_SIZE;
+
+	err = bpf_prog_test_run_opts(fd, &opts);
+	ASSERT_OK(err, "prog_run_max_size");
+
+	opts.data_size_in += 1;
+	err = bpf_prog_test_run_opts(fd, &opts);
+	ASSERT_EQ(err, -EINVAL, "prog_run_too_big");
+}
+
+#define NUM_PKTS 10000
+void test_xdp_do_redirect(void)
+{
+	int err, xdp_prog_fd, tc_prog_fd, ifindex_src, ifindex_dst;
+	char data[sizeof(pkt_udp) + sizeof(__u64)];
+	struct test_xdp_do_redirect *skel = NULL;
+	struct nstoken *nstoken = NULL;
+	struct bpf_link *link;
+	LIBBPF_OPTS(bpf_xdp_query_opts, query_opts);
+	struct xdp_md ctx_in = { .data = sizeof(__u64),
+				 .data_end = sizeof(data) };
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts,
+			    .data_in = &data,
+			    .data_size_in = sizeof(data),
+			    .ctx_in = &ctx_in,
+			    .ctx_size_in = sizeof(ctx_in),
+			    .flags = BPF_F_TEST_XDP_LIVE_FRAMES,
+			    .repeat = NUM_PKTS,
+			    .batch_size = 64,
+		);
+	DECLARE_LIBBPF_OPTS(bpf_tc_hook, tc_hook,
+			    .attach_point = BPF_TC_INGRESS);
+
+	memcpy(&data[sizeof(__u64)], &pkt_udp, sizeof(pkt_udp));
+	((__u32 *)data)[0] = 0x42; /* metadata test value */
+	((__u32 *)data)[1] = 0;
+
+	skel = test_xdp_do_redirect__open();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		return;
+
+	/* The XDP program we run with bpf_prog_run() will cycle through all
+	 * three xmit (PASS/TX/REDIRECT) return codes starting from above, and
+	 * ending up with PASS, so we should end up with two packets on the dst
+	 * iface and NUM_PKTS-2 in the TC hook. We match the packets on the UDP
+	 * payload.
+	 */
+	SYS(out, "ip netns add testns");
+	nstoken = open_netns("testns");
+	if (!ASSERT_OK_PTR(nstoken, "setns"))
+		goto out;
+
+	SYS(out, "ip link add veth_src type veth peer name veth_dst");
+	SYS(out, "ip link set dev veth_src address 00:11:22:33:44:55");
+	SYS(out, "ip link set dev veth_dst address 66:77:88:99:aa:bb");
+	SYS(out, "ip link set dev veth_src up");
+	SYS(out, "ip link set dev veth_dst up");
+	SYS(out, "ip addr add dev veth_src fc00::1/64");
+	SYS(out, "ip addr add dev veth_dst fc00::2/64");
+	SYS(out, "ip neigh add fc00::2 dev veth_src lladdr 66:77:88:99:aa:bb");
+
+	/* We enable forwarding in the test namespace because that will cause
+	 * the packets that go through the kernel stack (with XDP_PASS) to be
+	 * forwarded back out the same interface (because of the packet dst
+	 * combined with the interface addresses). When this happens, the
+	 * regular forwarding path will end up going through the same
+	 * veth_xdp_xmit() call as the XDP_REDIRECT code, which can cause a
+	 * deadlock if it happens on the same CPU. There's a local_bh_disable()
+	 * in the test_run code to prevent this, but an earlier version of the
+	 * code didn't have this, so we keep the test behaviour to make sure the
+	 * bug doesn't resurface.
+	 */
+	SYS(out, "sysctl -qw net.ipv6.conf.all.forwarding=1");
+
+	ifindex_src = if_nametoindex("veth_src");
+	ifindex_dst = if_nametoindex("veth_dst");
+	if (!ASSERT_NEQ(ifindex_src, 0, "ifindex_src") ||
+	    !ASSERT_NEQ(ifindex_dst, 0, "ifindex_dst"))
+		goto out;
+
+	/* Check xdp features supported by veth driver */
+	err = bpf_xdp_query(ifindex_src, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "veth_src bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG,
+		       "veth_src query_opts.feature_flags"))
+		goto out;
+
+	err = bpf_xdp_query(ifindex_dst, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "veth_dst bpf_xdp_query"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_RX_SG,
+		       "veth_dst query_opts.feature_flags"))
+		goto out;
+
+	/* Enable GRO */
+	SYS(out, "ethtool -K veth_src gro on");
+	SYS(out, "ethtool -K veth_dst gro on");
+
+	err = bpf_xdp_query(ifindex_src, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "veth_src bpf_xdp_query gro on"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG |
+		       NETDEV_XDP_ACT_NDO_XMIT_SG,
+		       "veth_src query_opts.feature_flags gro on"))
+		goto out;
+
+	err = bpf_xdp_query(ifindex_dst, XDP_FLAGS_DRV_MODE, &query_opts);
+	if (!ASSERT_OK(err, "veth_dst bpf_xdp_query gro on"))
+		goto out;
+
+	if (!ASSERT_EQ(query_opts.feature_flags,
+		       NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT |
+		       NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG |
+		       NETDEV_XDP_ACT_NDO_XMIT_SG,
+		       "veth_dst query_opts.feature_flags gro on"))
+		goto out;
+
+	memcpy(skel->rodata->expect_dst, &pkt_udp.eth.h_dest, ETH_ALEN);
+	skel->rodata->ifindex_out = ifindex_src; /* redirect back to the same iface */
+	skel->rodata->ifindex_in = ifindex_src;
+	ctx_in.ingress_ifindex = ifindex_src;
+	tc_hook.ifindex = ifindex_src;
+
+	if (!ASSERT_OK(test_xdp_do_redirect__load(skel), "load"))
+		goto out;
+
+	link = bpf_program__attach_xdp(skel->progs.xdp_count_pkts, ifindex_dst);
+	if (!ASSERT_OK_PTR(link, "prog_attach"))
+		goto out;
+	skel->links.xdp_count_pkts = link;
+
+	tc_prog_fd = bpf_program__fd(skel->progs.tc_count_pkts);
+	if (attach_tc_prog(&tc_hook, tc_prog_fd))
+		goto out;
+
+	xdp_prog_fd = bpf_program__fd(skel->progs.xdp_redirect);
+	err = bpf_prog_test_run_opts(xdp_prog_fd, &opts);
+	if (!ASSERT_OK(err, "prog_run"))
+		goto out_tc;
+
+	/* wait for the packets to be flushed */
+	kern_sync_rcu();
+
+	/* There will be one packet sent through XDP_REDIRECT and one through
+	 * XDP_TX; these will show up on the XDP counting program, while the
+	 * rest will be counted at the TC ingress hook (and the counting program
+	 * resets the packet payload so they don't get counted twice even though
+	 * they are re-xmited out the veth device
+	 */
+	ASSERT_EQ(skel->bss->pkts_seen_xdp, 2, "pkt_count_xdp");
+	ASSERT_EQ(skel->bss->pkts_seen_zero, 2, "pkt_count_zero");
+	ASSERT_EQ(skel->bss->pkts_seen_tc, NUM_PKTS - 2, "pkt_count_tc");
+
+	test_max_pkt_size(bpf_program__fd(skel->progs.xdp_count_pkts));
+
+out_tc:
+	bpf_tc_hook_destroy(&tc_hook);
+out:
+	if (nstoken)
+		close_netns(nstoken);
+	SYS_NOFAIL("ip netns del testns");
+	test_xdp_do_redirect__destroy(skel);
+}
+
+#define NS_NB		3
+#define NS0		"NS0"
+#define NS1		"NS1"
+#define NS2		"NS2"
+#define IPV4_NETWORK	"10.1.1"
+#define VETH1_INDEX	111
+#define VETH2_INDEX	222
+
+struct test_data {
+	struct netns_obj *ns[NS_NB];
+	u32 xdp_flags;
+};
+
+static void cleanup(struct test_data *data)
+{
+	int i;
+
+	for (i = 0; i < NS_NB; i++)
+		netns_free(data->ns[i]);
+}
+
+/**
+ * ping_setup -
+ * Create two veth peers and forward packets in-between using XDP
+ *
+ *    ------------           ------------
+ *    |    NS1   |           |    NS2   |
+ *    |   veth0  |           |   veth0  |
+ *    | 10.1.1.1 |           | 10.1.1.2 |
+ *    -----|------           ------|-----
+ *         |                       |
+ *         |                       |
+ *    -----|-----------------------|-------
+ *    |  veth1                   veth2    |
+ *    | (id:111)                (id:222)  |
+ *    |    |                        |     |
+ *    |    ----- xdp forwarding -----     |
+ *    |                                   |
+ *    |               NS0                 |
+ *    -------------------------------------
+ */
+static int ping_setup(struct test_data *data)
+{
+	int i;
+
+	data->ns[0] = netns_new(NS0, false);
+	if (!ASSERT_OK_PTR(data->ns[0], "create ns"))
+		return -1;
+
+	for (i = 1; i < NS_NB; i++) {
+		char ns_name[4] = {};
+
+		snprintf(ns_name, 4, "NS%d", i);
+		data->ns[i] = netns_new(ns_name, false);
+		if (!ASSERT_OK_PTR(data->ns[i], "create ns"))
+			goto fail;
+
+		SYS(fail,
+		    "ip -n %s link add veth%d index %d%d%d type veth peer name veth0 netns %s",
+		    NS0, i, i, i, i, ns_name);
+		SYS(fail, "ip -n %s link set veth%d up", NS0, i);
+
+		SYS(fail, "ip -n %s addr add %s.%d/24 dev veth0", ns_name, IPV4_NETWORK, i);
+		SYS(fail, "ip -n %s link set veth0 up", ns_name);
+	}
+
+	return 0;
+
+fail:
+	cleanup(data);
+	return -1;
+}
+
+static void ping_test(struct test_data *data)
+{
+	struct test_xdp_do_redirect *skel = NULL;
+	struct xdp_dummy *skel_dummy = NULL;
+	struct nstoken *nstoken = NULL;
+	int i, ret;
+
+	skel_dummy = xdp_dummy__open_and_load();
+	if (!ASSERT_OK_PTR(skel_dummy, "open and load xdp_dummy skeleton"))
+		goto close;
+
+	for (i = 1; i < NS_NB; i++) {
+		char ns_name[4] = {};
+
+		snprintf(ns_name, 4, "NS%d", i);
+		nstoken = open_netns(ns_name);
+		if (!ASSERT_OK_PTR(nstoken, "open ns"))
+			goto close;
+
+		ret = bpf_xdp_attach(if_nametoindex("veth0"),
+				     bpf_program__fd(skel_dummy->progs.xdp_dummy_prog),
+				     data->xdp_flags, NULL);
+		if (!ASSERT_GE(ret, 0, "bpf_xdp_attach dummy_prog"))
+			goto close;
+
+		close_netns(nstoken);
+		nstoken = NULL;
+	}
+
+	skel = test_xdp_do_redirect__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open and load skeleton"))
+		goto close;
+
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "open NS0"))
+		goto close;
+
+	ret = bpf_xdp_attach(VETH2_INDEX,
+			     bpf_program__fd(skel->progs.xdp_redirect_to_111),
+			     data->xdp_flags, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto close;
+
+	ret = bpf_xdp_attach(VETH1_INDEX,
+			     bpf_program__fd(skel->progs.xdp_redirect_to_222),
+			     data->xdp_flags, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto close;
+
+	close_netns(nstoken);
+	nstoken = NULL;
+
+	nstoken = open_netns(NS1);
+	if (!ASSERT_OK_PTR(nstoken, "open NS1"))
+		goto close;
+
+	SYS(close, "ping -c 1 %s.2 > /dev/null", IPV4_NETWORK);
+
+close:
+	close_netns(nstoken);
+	xdp_dummy__destroy(skel_dummy);
+	test_xdp_do_redirect__destroy(skel);
+}
+
+
+static void xdp_redirect_ping(u32 xdp_flags)
+{
+	struct test_data data = {};
+
+	if (ping_setup(&data) < 0)
+		return;
+
+	data.xdp_flags = xdp_flags;
+	ping_test(&data);
+	cleanup(&data);
+}
+
+void test_xdp_index_redirect(void)
+{
+	if (test__start_subtest("noflag"))
+		xdp_redirect_ping(0);
+
+	if (test__start_subtest("drvflag"))
+		xdp_redirect_ping(XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("skbflag"))
+		xdp_redirect_ping(XDP_FLAGS_SKB_MODE);
+}
+
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c b/tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c
new file mode 100644
index 000000000000..3f9146d83d79
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_flowtable.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <bpf/btf.h>
+#include <linux/if_link.h>
+#include <netinet/udp.h>
+#include <net/if.h>
+#include <unistd.h>
+
+#include "xdp_flowtable.skel.h"
+
+#define TX_NETNS_NAME	"ns0"
+#define RX_NETNS_NAME	"ns1"
+
+#define TX_NAME		"v0"
+#define FORWARD_NAME	"v1"
+#define RX_NAME		"d0"
+
+#define TX_MAC		"00:00:00:00:00:01"
+#define FORWARD_MAC	"00:00:00:00:00:02"
+#define RX_MAC		"00:00:00:00:00:03"
+#define DST_MAC		"00:00:00:00:00:04"
+
+#define TX_ADDR		"10.0.0.1"
+#define FORWARD_ADDR	"10.0.0.2"
+#define RX_ADDR		"20.0.0.1"
+#define DST_ADDR	"20.0.0.2"
+
+#define PREFIX_LEN	"8"
+#define N_PACKETS	10
+#define UDP_PORT	12345
+#define UDP_PORT_STR	"12345"
+
+static int send_udp_traffic(void)
+{
+	struct sockaddr_storage addr;
+	int i, sock;
+
+	if (make_sockaddr(AF_INET, DST_ADDR, UDP_PORT, &addr, NULL))
+		return -EINVAL;
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock < 0)
+		return sock;
+
+	for (i = 0; i < N_PACKETS; i++) {
+		unsigned char buf[] = { 0xaa, 0xbb, 0xcc };
+		int n;
+
+		n = sendto(sock, buf, sizeof(buf), MSG_NOSIGNAL | MSG_CONFIRM,
+			   (struct sockaddr *)&addr, sizeof(addr));
+		if (n != sizeof(buf)) {
+			close(sock);
+			return -EINVAL;
+		}
+
+		usleep(50000); /* 50ms */
+	}
+	close(sock);
+
+	return 0;
+}
+
+void test_xdp_flowtable(void)
+{
+	struct xdp_flowtable *skel = NULL;
+	struct nstoken *tok = NULL;
+	int iifindex, stats_fd;
+	__u32 value, key = 0;
+	struct bpf_link *link;
+
+	if (SYS_NOFAIL("nft -v")) {
+		fprintf(stdout, "Missing required nft tool\n");
+		test__skip();
+		return;
+	}
+
+	SYS(out, "ip netns add " TX_NETNS_NAME);
+	SYS(out, "ip netns add " RX_NETNS_NAME);
+
+	tok = open_netns(RX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+
+	SYS(out, "sysctl -qw net.ipv4.conf.all.forwarding=1");
+
+	SYS(out, "ip link add " TX_NAME " type veth peer " FORWARD_NAME);
+	SYS(out, "ip link set " TX_NAME " netns " TX_NETNS_NAME);
+	SYS(out, "ip link set dev " FORWARD_NAME " address " FORWARD_MAC);
+	SYS(out,
+	    "ip addr add " FORWARD_ADDR "/" PREFIX_LEN " dev " FORWARD_NAME);
+	SYS(out, "ip link set dev " FORWARD_NAME " up");
+
+	SYS(out, "ip link add " RX_NAME " type dummy");
+	SYS(out, "ip link set dev " RX_NAME " address " RX_MAC);
+	SYS(out, "ip addr add " RX_ADDR "/" PREFIX_LEN " dev " RX_NAME);
+	SYS(out, "ip link set dev " RX_NAME " up");
+
+	/* configure the flowtable */
+	SYS(out, "nft add table ip filter");
+	SYS(out,
+	    "nft add flowtable ip filter f { hook ingress priority 0\\; "
+	    "devices = { " FORWARD_NAME ", " RX_NAME " }\\; }");
+	SYS(out,
+	    "nft add chain ip filter forward "
+	    "{ type filter hook forward priority 0\\; }");
+	SYS(out,
+	    "nft add rule ip filter forward ip protocol udp th dport "
+	    UDP_PORT_STR " flow add @f");
+
+	/* Avoid ARP calls */
+	SYS(out,
+	    "ip -4 neigh add " DST_ADDR " lladdr " DST_MAC " dev " RX_NAME);
+
+	close_netns(tok);
+	tok = open_netns(TX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+
+	SYS(out, "ip addr add " TX_ADDR "/" PREFIX_LEN " dev " TX_NAME);
+	SYS(out, "ip link set dev " TX_NAME " address " TX_MAC);
+	SYS(out, "ip link set dev " TX_NAME " up");
+	SYS(out, "ip route add default via " FORWARD_ADDR);
+
+	close_netns(tok);
+	tok = open_netns(RX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+
+	iifindex = if_nametoindex(FORWARD_NAME);
+	if (!ASSERT_NEQ(iifindex, 0, "iifindex"))
+		goto out;
+
+	skel = xdp_flowtable__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel"))
+		goto out;
+
+	link = bpf_program__attach_xdp(skel->progs.xdp_flowtable_do_lookup,
+				       iifindex);
+	if (!ASSERT_OK_PTR(link, "prog_attach"))
+		goto out;
+
+	close_netns(tok);
+	tok = open_netns(TX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+
+	if (!ASSERT_OK(send_udp_traffic(), "send udp"))
+		goto out;
+
+	close_netns(tok);
+	tok = open_netns(RX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+
+	stats_fd = bpf_map__fd(skel->maps.stats);
+	if (!ASSERT_OK(bpf_map_lookup_elem(stats_fd, &key, &value),
+		       "bpf_map_update_elem stats"))
+		goto out;
+
+	ASSERT_GE(value, N_PACKETS - 2, "bpf_xdp_flow_lookup failed");
+out:
+	xdp_flowtable__destroy(skel);
+	if (tok)
+		close_netns(tok);
+	SYS_NOFAIL("ip netns del " TX_NETNS_NAME);
+	SYS_NOFAIL("ip netns del " RX_NETNS_NAME);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_info.c b/tools/testing/selftests/bpf/prog_tests/xdp_info.c
new file mode 100644
index 000000000000..1dbddcab87a8
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_info.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/if_link.h>
+#include <test_progs.h>
+
+#define IFINDEX_LO 1
+
+void serial_test_xdp_info(void)
+{
+	__u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id;
+	const char *file = "./xdp_dummy.bpf.o";
+	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
+	struct bpf_prog_info info = {};
+	struct bpf_object *obj;
+	int err, prog_fd;
+
+	/* Get prog_id for XDP_ATTACHED_NONE mode */
+
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
+	if (CHECK(err, "get_xdp_none", "errno=%d\n", errno))
+		return;
+	if (CHECK(prog_id, "prog_id_none", "unexpected prog_id=%u\n", prog_id))
+		return;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
+	if (CHECK(err, "get_xdp_none_skb", "errno=%d\n", errno))
+		return;
+	if (CHECK(prog_id, "prog_id_none_skb", "unexpected prog_id=%u\n",
+		  prog_id))
+		return;
+
+	/* Setup prog */
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &len);
+	if (CHECK(err, "get_prog_info", "errno=%d\n", errno))
+		goto out_close;
+
+	err = bpf_xdp_attach(IFINDEX_LO, prog_fd, XDP_FLAGS_SKB_MODE, NULL);
+	if (CHECK(err, "set_xdp_skb", "errno=%d\n", errno))
+		goto out_close;
+
+	/* Get prog_id for single prog mode */
+
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &prog_id);
+	if (CHECK(err, "get_xdp", "errno=%d\n", errno))
+		goto out;
+	if (CHECK(prog_id != info.id, "prog_id", "prog_id not available\n"))
+		goto out;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_SKB_MODE, &prog_id);
+	if (CHECK(err, "get_xdp_skb", "errno=%d\n", errno))
+		goto out;
+	if (CHECK(prog_id != info.id, "prog_id_skb", "prog_id not available\n"))
+		goto out;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &prog_id);
+	if (CHECK(err, "get_xdp_drv", "errno=%d\n", errno))
+		goto out;
+	if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id))
+		goto out;
+
+	/* Check xdp features supported by lo device */
+	opts.feature_flags = ~0;
+	err = bpf_xdp_query(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &opts);
+	if (!ASSERT_OK(err, "bpf_xdp_query"))
+		goto out;
+
+	ASSERT_EQ(opts.feature_flags, 0, "opts.feature_flags");
+out:
+	bpf_xdp_detach(IFINDEX_LO, 0, NULL);
+out_close:
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_link.c b/tools/testing/selftests/bpf/prog_tests/xdp_link.c
new file mode 100644
index 000000000000..e7e9f3c22edf
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_link.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <uapi/linux/if_link.h>
+#include <test_progs.h>
+#include "test_xdp_link.skel.h"
+
+#define IFINDEX_LO 1
+
+void serial_test_xdp_link(void)
+{
+	struct test_xdp_link *skel1 = NULL, *skel2 = NULL;
+	__u32 id1, id2, id0 = 0, prog_fd1, prog_fd2;
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+	struct bpf_link_info link_info;
+	struct bpf_prog_info prog_info;
+	struct bpf_link *link;
+	int err;
+	__u32 link_info_len = sizeof(link_info);
+	__u32 prog_info_len = sizeof(prog_info);
+
+	skel1 = test_xdp_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel1, "skel_load"))
+		goto cleanup;
+	prog_fd1 = bpf_program__fd(skel1->progs.xdp_handler);
+
+	skel2 = test_xdp_link__open_and_load();
+	if (!ASSERT_OK_PTR(skel2, "skel_load"))
+		goto cleanup;
+	prog_fd2 = bpf_program__fd(skel2->progs.xdp_handler);
+
+	memset(&prog_info, 0, sizeof(prog_info));
+	err = bpf_prog_get_info_by_fd(prog_fd1, &prog_info, &prog_info_len);
+	if (!ASSERT_OK(err, "fd_info1"))
+		goto cleanup;
+	id1 = prog_info.id;
+
+	memset(&prog_info, 0, sizeof(prog_info));
+	err = bpf_prog_get_info_by_fd(prog_fd2, &prog_info, &prog_info_len);
+	if (!ASSERT_OK(err, "fd_info2"))
+		goto cleanup;
+	id2 = prog_info.id;
+
+	/* set initial prog attachment */
+	err = bpf_xdp_attach(IFINDEX_LO, prog_fd1, XDP_FLAGS_REPLACE, &opts);
+	if (!ASSERT_OK(err, "fd_attach"))
+		goto cleanup;
+
+	/* validate prog ID */
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (!ASSERT_OK(err, "id1_check_err") || !ASSERT_EQ(id0, id1, "id1_check_val"))
+		goto cleanup;
+
+	/* BPF link is not allowed to replace prog attachment */
+	link = bpf_program__attach_xdp(skel1->progs.xdp_handler, IFINDEX_LO);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		/* best-effort detach prog */
+		opts.old_prog_fd = prog_fd1;
+		bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_REPLACE, &opts);
+		goto cleanup;
+	}
+
+	/* detach BPF program */
+	opts.old_prog_fd = prog_fd1;
+	err = bpf_xdp_detach(IFINDEX_LO, XDP_FLAGS_REPLACE, &opts);
+	if (!ASSERT_OK(err, "prog_detach"))
+		goto cleanup;
+
+	/* now BPF link should attach successfully */
+	link = bpf_program__attach_xdp(skel1->progs.xdp_handler, IFINDEX_LO);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+	skel1->links.xdp_handler = link;
+
+	/* validate prog ID */
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (!ASSERT_OK(err, "id1_check_err") || !ASSERT_EQ(id0, id1, "id1_check_val"))
+		goto cleanup;
+
+	/* BPF prog attach is not allowed to replace BPF link */
+	opts.old_prog_fd = prog_fd1;
+	err = bpf_xdp_attach(IFINDEX_LO, prog_fd2, XDP_FLAGS_REPLACE, &opts);
+	if (!ASSERT_ERR(err, "prog_attach_fail"))
+		goto cleanup;
+
+	/* Can't force-update when BPF link is active */
+	err = bpf_xdp_attach(IFINDEX_LO, prog_fd2, 0, NULL);
+	if (!ASSERT_ERR(err, "prog_update_fail"))
+		goto cleanup;
+
+	/* Can't force-detach when BPF link is active */
+	err = bpf_xdp_detach(IFINDEX_LO, 0, NULL);
+	if (!ASSERT_ERR(err, "prog_detach_fail"))
+		goto cleanup;
+
+	/* BPF link is not allowed to replace another BPF link */
+	link = bpf_program__attach_xdp(skel2->progs.xdp_handler, IFINDEX_LO);
+	if (!ASSERT_ERR_PTR(link, "link_attach_should_fail")) {
+		bpf_link__destroy(link);
+		goto cleanup;
+	}
+
+	bpf_link__destroy(skel1->links.xdp_handler);
+	skel1->links.xdp_handler = NULL;
+
+	/* new link attach should succeed */
+	link = bpf_program__attach_xdp(skel2->progs.xdp_handler, IFINDEX_LO);
+	if (!ASSERT_OK_PTR(link, "link_attach"))
+		goto cleanup;
+	skel2->links.xdp_handler = link;
+
+	err = bpf_xdp_query_id(IFINDEX_LO, 0, &id0);
+	if (!ASSERT_OK(err, "id2_check_err") || !ASSERT_EQ(id0, id2, "id2_check_val"))
+		goto cleanup;
+
+	/* updating program under active BPF link works as expected */
+	err = bpf_link__update_program(link, skel1->progs.xdp_handler);
+	if (!ASSERT_OK(err, "link_upd"))
+		goto cleanup;
+
+	memset(&link_info, 0, sizeof(link_info));
+	err = bpf_link_get_info_by_fd(bpf_link__fd(link),
+				      &link_info, &link_info_len);
+	if (!ASSERT_OK(err, "link_info"))
+		goto cleanup;
+
+	ASSERT_EQ(link_info.type, BPF_LINK_TYPE_XDP, "link_type");
+	ASSERT_EQ(link_info.prog_id, id1, "link_prog_id");
+	ASSERT_EQ(link_info.xdp.ifindex, IFINDEX_LO, "link_ifindex");
+
+	/* updating program under active BPF link with different type fails */
+	err = bpf_link__update_program(link, skel1->progs.tc_handler);
+	if (!ASSERT_ERR(err, "link_upd_invalid"))
+		goto cleanup;
+
+	err = bpf_link__detach(link);
+	if (!ASSERT_OK(err, "link_detach"))
+		goto cleanup;
+
+	memset(&link_info, 0, sizeof(link_info));
+	err = bpf_link_get_info_by_fd(bpf_link__fd(link),
+				      &link_info, &link_info_len);
+
+	ASSERT_OK(err, "link_info");
+	ASSERT_EQ(link_info.prog_id, id1, "link_prog_id");
+	/* ifindex should be zeroed out */
+	ASSERT_EQ(link_info.xdp.ifindex, 0, "link_ifindex");
+
+cleanup:
+	test_xdp_link__destroy(skel1);
+	test_xdp_link__destroy(skel2);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
new file mode 100644
index 000000000000..19f92affc2da
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c
@@ -0,0 +1,545 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "xdp_metadata.skel.h"
+#include "xdp_metadata2.skel.h"
+#include "xdp_metadata.h"
+#include "xsk.h"
+
+#include <bpf/btf.h>
+#include <linux/errqueue.h>
+#include <linux/if_link.h>
+#include <linux/net_tstamp.h>
+#include <netinet/udp.h>
+#include <sys/mman.h>
+#include <net/if.h>
+#include <poll.h>
+
+#define TX_NAME "veTX"
+#define RX_NAME "veRX"
+
+#define UDP_PAYLOAD_BYTES 4
+
+#define UDP_SOURCE_PORT 1234
+#define AF_XDP_CONSUMER_PORT 8080
+
+#define UMEM_NUM 16
+#define UMEM_FRAME_SIZE XSK_UMEM__DEFAULT_FRAME_SIZE
+#define UMEM_SIZE (UMEM_FRAME_SIZE * UMEM_NUM)
+#define XDP_FLAGS XDP_FLAGS_DRV_MODE
+#define QUEUE_ID 0
+
+#define TX_ADDR "10.0.0.1"
+#define RX_ADDR "10.0.0.2"
+#define PREFIX_LEN "8"
+#define FAMILY AF_INET
+#define TX_NETNS_NAME "xdp_metadata_tx"
+#define RX_NETNS_NAME "xdp_metadata_rx"
+#define TX_MAC "00:00:00:00:00:01"
+#define RX_MAC "00:00:00:00:00:02"
+
+#define VLAN_ID 59
+#define VLAN_PROTO "802.1Q"
+#define VLAN_PID htons(ETH_P_8021Q)
+#define TX_NAME_VLAN TX_NAME "." TO_STR(VLAN_ID)
+
+#define XDP_RSS_TYPE_L4 BIT(3)
+#define VLAN_VID_MASK 0xfff
+
+struct xsk {
+	void *umem_area;
+	struct xsk_umem *umem;
+	struct xsk_ring_prod fill;
+	struct xsk_ring_cons comp;
+	struct xsk_ring_prod tx;
+	struct xsk_ring_cons rx;
+	struct xsk_socket *socket;
+};
+
+static int open_xsk(int ifindex, struct xsk *xsk)
+{
+	int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+	const struct xsk_socket_config socket_config = {
+		.rx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.bind_flags = XDP_COPY,
+	};
+	const struct xsk_umem_config umem_config = {
+		.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
+		.frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
+		.flags = XDP_UMEM_UNALIGNED_CHUNK_FLAG | XDP_UMEM_TX_SW_CSUM |
+			 XDP_UMEM_TX_METADATA_LEN,
+		.tx_metadata_len = sizeof(struct xsk_tx_metadata),
+	};
+	__u32 idx;
+	u64 addr;
+	int ret;
+	int i;
+
+	xsk->umem_area = mmap(NULL, UMEM_SIZE, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
+	if (!ASSERT_NEQ(xsk->umem_area, MAP_FAILED, "mmap"))
+		return -1;
+
+	ret = xsk_umem__create(&xsk->umem,
+			       xsk->umem_area, UMEM_SIZE,
+			       &xsk->fill,
+			       &xsk->comp,
+			       &umem_config);
+	if (!ASSERT_OK(ret, "xsk_umem__create"))
+		return ret;
+
+	ret = xsk_socket__create(&xsk->socket, ifindex, QUEUE_ID,
+				 xsk->umem,
+				 &xsk->rx,
+				 &xsk->tx,
+				 &socket_config);
+	if (!ASSERT_OK(ret, "xsk_socket__create"))
+		return ret;
+
+	/* First half of umem is for TX. This way address matches 1-to-1
+	 * to the completion queue index.
+	 */
+
+	for (i = 0; i < UMEM_NUM / 2; i++) {
+		addr = i * UMEM_FRAME_SIZE;
+		printf("%p: tx_desc[%d] -> %lx\n", xsk, i, addr);
+	}
+
+	/* Second half of umem is for RX. */
+
+	ret = xsk_ring_prod__reserve(&xsk->fill, UMEM_NUM / 2, &idx);
+	if (!ASSERT_EQ(UMEM_NUM / 2, ret, "xsk_ring_prod__reserve"))
+		return ret;
+	if (!ASSERT_EQ(idx, 0, "fill idx != 0"))
+		return -1;
+
+	for (i = 0; i < UMEM_NUM / 2; i++) {
+		addr = (UMEM_NUM / 2 + i) * UMEM_FRAME_SIZE;
+		printf("%p: rx_desc[%d] -> %lx\n", xsk, i, addr);
+		*xsk_ring_prod__fill_addr(&xsk->fill, i) = addr;
+	}
+	xsk_ring_prod__submit(&xsk->fill, ret);
+
+	return 0;
+}
+
+static void close_xsk(struct xsk *xsk)
+{
+	if (xsk->umem)
+		xsk_umem__delete(xsk->umem);
+	if (xsk->socket)
+		xsk_socket__delete(xsk->socket);
+	munmap(xsk->umem_area, UMEM_SIZE);
+}
+
+static int generate_packet(struct xsk *xsk, __u16 dst_port)
+{
+	struct xsk_tx_metadata *meta;
+	struct xdp_desc *tx_desc;
+	struct udphdr *udph;
+	struct ethhdr *eth;
+	struct iphdr *iph;
+	void *data;
+	__u32 idx;
+	int ret;
+
+	ret = xsk_ring_prod__reserve(&xsk->tx, 1, &idx);
+	if (!ASSERT_EQ(ret, 1, "xsk_ring_prod__reserve"))
+		return -1;
+
+	tx_desc = xsk_ring_prod__tx_desc(&xsk->tx, idx);
+	tx_desc->addr = idx % (UMEM_NUM / 2) * UMEM_FRAME_SIZE + sizeof(struct xsk_tx_metadata);
+	printf("%p: tx_desc[%u]->addr=%llx\n", xsk, idx, tx_desc->addr);
+	data = xsk_umem__get_data(xsk->umem_area, tx_desc->addr);
+
+	meta = data - sizeof(struct xsk_tx_metadata);
+	memset(meta, 0, sizeof(*meta));
+	meta->flags = XDP_TXMD_FLAGS_TIMESTAMP;
+
+	eth = data;
+	iph = (void *)(eth + 1);
+	udph = (void *)(iph + 1);
+
+	memcpy(eth->h_dest, "\x00\x00\x00\x00\x00\x02", ETH_ALEN);
+	memcpy(eth->h_source, "\x00\x00\x00\x00\x00\x01", ETH_ALEN);
+	eth->h_proto = htons(ETH_P_IP);
+
+	iph->version = 0x4;
+	iph->ihl = 0x5;
+	iph->tos = 0x9;
+	iph->tot_len = htons(sizeof(*iph) + sizeof(*udph) + UDP_PAYLOAD_BYTES);
+	iph->id = 0;
+	iph->frag_off = 0;
+	iph->ttl = 0;
+	iph->protocol = IPPROTO_UDP;
+	ASSERT_EQ(inet_pton(FAMILY, TX_ADDR, &iph->saddr), 1, "inet_pton(TX_ADDR)");
+	ASSERT_EQ(inet_pton(FAMILY, RX_ADDR, &iph->daddr), 1, "inet_pton(RX_ADDR)");
+	iph->check = build_ip_csum(iph);
+
+	udph->source = htons(UDP_SOURCE_PORT);
+	udph->dest = htons(dst_port);
+	udph->len = htons(sizeof(*udph) + UDP_PAYLOAD_BYTES);
+	udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
+					 ntohs(udph->len), IPPROTO_UDP, 0);
+
+	memset(udph + 1, 0xAA, UDP_PAYLOAD_BYTES);
+
+	meta->flags |= XDP_TXMD_FLAGS_CHECKSUM;
+	meta->request.csum_start = sizeof(*eth) + sizeof(*iph);
+	meta->request.csum_offset = offsetof(struct udphdr, check);
+
+	tx_desc->len = sizeof(*eth) + sizeof(*iph) + sizeof(*udph) + UDP_PAYLOAD_BYTES;
+	tx_desc->options |= XDP_TX_METADATA;
+	xsk_ring_prod__submit(&xsk->tx, 1);
+
+	ret = sendto(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, 0);
+	if (!ASSERT_GE(ret, 0, "sendto"))
+		return ret;
+
+	return 0;
+}
+
+static int generate_packet_inet(void)
+{
+	char udp_payload[UDP_PAYLOAD_BYTES];
+	struct sockaddr_in rx_addr;
+	int sock_fd, err = 0;
+
+	/* Build a packet */
+	memset(udp_payload, 0xAA, UDP_PAYLOAD_BYTES);
+	rx_addr.sin_addr.s_addr = inet_addr(RX_ADDR);
+	rx_addr.sin_family = AF_INET;
+	rx_addr.sin_port = htons(AF_XDP_CONSUMER_PORT);
+
+	sock_fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	if (!ASSERT_GE(sock_fd, 0, "socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP)"))
+		return sock_fd;
+
+	err = sendto(sock_fd, udp_payload, UDP_PAYLOAD_BYTES, MSG_DONTWAIT,
+		     (void *)&rx_addr, sizeof(rx_addr));
+	ASSERT_GE(err, 0, "sendto");
+
+	close(sock_fd);
+	return err;
+}
+
+static void complete_tx(struct xsk *xsk)
+{
+	struct xsk_tx_metadata *meta;
+	__u64 addr;
+	void *data;
+	__u32 idx;
+
+	if (ASSERT_EQ(xsk_ring_cons__peek(&xsk->comp, 1, &idx), 1, "xsk_ring_cons__peek")) {
+		addr = *xsk_ring_cons__comp_addr(&xsk->comp, idx);
+
+		printf("%p: complete tx idx=%u addr=%llx\n", xsk, idx, addr);
+
+		data = xsk_umem__get_data(xsk->umem_area, addr);
+		meta = data - sizeof(struct xsk_tx_metadata);
+
+		ASSERT_NEQ(meta->completion.tx_timestamp, 0, "tx_timestamp");
+
+		xsk_ring_cons__release(&xsk->comp, 1);
+	}
+}
+
+static void refill_rx(struct xsk *xsk, __u64 addr)
+{
+	__u32 idx;
+
+	if (ASSERT_EQ(xsk_ring_prod__reserve(&xsk->fill, 1, &idx), 1, "xsk_ring_prod__reserve")) {
+		printf("%p: complete idx=%u addr=%llx\n", xsk, idx, addr);
+		*xsk_ring_prod__fill_addr(&xsk->fill, idx) = addr;
+		xsk_ring_prod__submit(&xsk->fill, 1);
+	}
+}
+
+static int verify_xsk_metadata(struct xsk *xsk, bool sent_from_af_xdp)
+{
+	const struct xdp_desc *rx_desc;
+	struct pollfd fds = {};
+	struct xdp_meta *meta;
+	struct udphdr *udph;
+	struct ethhdr *eth;
+	struct iphdr *iph;
+	__u64 comp_addr;
+	void *data;
+	__u64 addr;
+	__u32 idx = 0;
+	int ret;
+
+	ret = recvfrom(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, NULL);
+	if (!ASSERT_EQ(ret, 0, "recvfrom"))
+		return -1;
+
+	fds.fd = xsk_socket__fd(xsk->socket);
+	fds.events = POLLIN;
+
+	ret = poll(&fds, 1, 1000);
+	if (!ASSERT_GT(ret, 0, "poll"))
+		return -1;
+
+	ret = xsk_ring_cons__peek(&xsk->rx, 1, &idx);
+	if (!ASSERT_EQ(ret, 1, "xsk_ring_cons__peek"))
+		return -2;
+
+	rx_desc = xsk_ring_cons__rx_desc(&xsk->rx, idx);
+	comp_addr = xsk_umem__extract_addr(rx_desc->addr);
+	addr = xsk_umem__add_offset_to_addr(rx_desc->addr);
+	printf("%p: rx_desc[%u]->addr=%llx addr=%llx comp_addr=%llx\n",
+	       xsk, idx, rx_desc->addr, addr, comp_addr);
+	data = xsk_umem__get_data(xsk->umem_area, addr);
+
+	/* Make sure we got the packet offset correctly. */
+
+	eth = data;
+	ASSERT_EQ(eth->h_proto, htons(ETH_P_IP), "eth->h_proto");
+	iph = (void *)(eth + 1);
+	ASSERT_EQ((int)iph->version, 4, "iph->version");
+	udph = (void *)(iph + 1);
+
+	/* custom metadata */
+
+	meta = data - sizeof(struct xdp_meta);
+
+	if (!ASSERT_NEQ(meta->rx_timestamp, 0, "rx_timestamp"))
+		return -1;
+
+	if (!ASSERT_NEQ(meta->rx_hash, 0, "rx_hash"))
+		return -1;
+
+	if (!sent_from_af_xdp) {
+		if (!ASSERT_NEQ(meta->rx_hash_type & XDP_RSS_TYPE_L4, 0, "rx_hash_type"))
+			return -1;
+
+		if (!ASSERT_EQ(meta->rx_vlan_tci & VLAN_VID_MASK, VLAN_ID, "rx_vlan_tci"))
+			return -1;
+
+		if (!ASSERT_EQ(meta->rx_vlan_proto, VLAN_PID, "rx_vlan_proto"))
+			return -1;
+		goto done;
+	}
+
+	ASSERT_EQ(meta->rx_hash_type, 0, "rx_hash_type");
+
+	/* checksum offload */
+	ASSERT_EQ(udph->check, htons(0x721c), "csum");
+
+done:
+	xsk_ring_cons__release(&xsk->rx, 1);
+	refill_rx(xsk, comp_addr);
+
+	return 0;
+}
+
+static void switch_ns_to_rx(struct nstoken **tok)
+{
+	close_netns(*tok);
+	*tok = open_netns(RX_NETNS_NAME);
+}
+
+static void switch_ns_to_tx(struct nstoken **tok)
+{
+	close_netns(*tok);
+	*tok = open_netns(TX_NETNS_NAME);
+}
+
+void test_xdp_metadata(void)
+{
+	struct xdp_metadata2 *bpf_obj2 = NULL;
+	struct xdp_metadata *bpf_obj = NULL;
+	struct bpf_program *new_prog, *prog;
+	struct bpf_devmap_val devmap_e = {};
+	struct bpf_map *prog_arr, *devmap;
+	struct nstoken *tok = NULL;
+	__u32 queue_id = QUEUE_ID;
+	struct xsk tx_xsk = {};
+	struct xsk rx_xsk = {};
+	__u32 val, key = 0;
+	int retries = 10;
+	int rx_ifindex;
+	int tx_ifindex;
+	int sock_fd;
+	int ret;
+
+	/* Setup new networking namespaces, with a veth pair. */
+	SYS(out, "ip netns add " TX_NETNS_NAME);
+	SYS(out, "ip netns add " RX_NETNS_NAME);
+
+	tok = open_netns(TX_NETNS_NAME);
+	if (!ASSERT_OK_PTR(tok, "setns"))
+		goto out;
+	SYS(out, "ip link add numtxqueues 1 numrxqueues 1 " TX_NAME
+	    " type veth peer " RX_NAME " numtxqueues 1 numrxqueues 1");
+	SYS(out, "ip link set " RX_NAME " netns " RX_NETNS_NAME);
+
+	SYS(out, "ip link set dev " TX_NAME " address " TX_MAC);
+	SYS(out, "ip link set dev " TX_NAME " up");
+
+	SYS(out, "ip link add link " TX_NAME " " TX_NAME_VLAN
+		 " type vlan proto " VLAN_PROTO " id " TO_STR(VLAN_ID));
+	SYS(out, "ip link set dev " TX_NAME_VLAN " up");
+	SYS(out, "ip addr add " TX_ADDR "/" PREFIX_LEN " dev " TX_NAME_VLAN);
+
+	/* Avoid ARP calls */
+	SYS(out, "ip -4 neigh add " RX_ADDR " lladdr " RX_MAC " dev " TX_NAME_VLAN);
+
+	switch_ns_to_rx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns rx"))
+		goto out;
+
+	SYS(out, "ip link set dev " RX_NAME " address " RX_MAC);
+	SYS(out, "ip link set dev " RX_NAME " up");
+	SYS(out, "ip addr add " RX_ADDR "/" PREFIX_LEN " dev " RX_NAME);
+
+	rx_ifindex = if_nametoindex(RX_NAME);
+
+	/* Setup separate AF_XDP for RX interface. */
+
+	ret = open_xsk(rx_ifindex, &rx_xsk);
+	if (!ASSERT_OK(ret, "open_xsk(RX_NAME)"))
+		goto out;
+
+	bpf_obj = xdp_metadata__open();
+	if (!ASSERT_OK_PTR(bpf_obj, "open skeleton"))
+		goto out;
+
+	prog = bpf_object__find_program_by_name(bpf_obj->obj, "rx");
+	bpf_program__set_ifindex(prog, rx_ifindex);
+	bpf_program__set_flags(prog, BPF_F_XDP_DEV_BOUND_ONLY);
+
+	/* Make sure we can load a dev-bound program that performs
+	 * XDP_REDIRECT into a devmap.
+	 */
+	new_prog = bpf_object__find_program_by_name(bpf_obj->obj, "redirect");
+	bpf_program__set_ifindex(new_prog, rx_ifindex);
+	bpf_program__set_flags(new_prog, BPF_F_XDP_DEV_BOUND_ONLY);
+
+	if (!ASSERT_OK(xdp_metadata__load(bpf_obj), "load skeleton"))
+		goto out;
+
+	/* Make sure we can't add dev-bound programs to prog maps. */
+	prog_arr = bpf_object__find_map_by_name(bpf_obj->obj, "prog_arr");
+	if (!ASSERT_OK_PTR(prog_arr, "no prog_arr map"))
+		goto out;
+
+	val = bpf_program__fd(prog);
+	if (!ASSERT_ERR(bpf_map__update_elem(prog_arr, &key, sizeof(key),
+					     &val, sizeof(val), BPF_ANY),
+			"update prog_arr"))
+		goto out;
+
+	/* Make sure we can't add dev-bound programs to devmaps. */
+	devmap = bpf_object__find_map_by_name(bpf_obj->obj, "dev_map");
+	if (!ASSERT_OK_PTR(devmap, "no dev_map found"))
+		goto out;
+
+	devmap_e.bpf_prog.fd = val;
+	if (!ASSERT_ERR(bpf_map__update_elem(devmap, &key, sizeof(key),
+					     &devmap_e, sizeof(devmap_e),
+					     BPF_ANY),
+			"update dev_map"))
+		goto out;
+
+	/* Attach BPF program to RX interface. */
+
+	ret = bpf_xdp_attach(rx_ifindex,
+			     bpf_program__fd(bpf_obj->progs.rx),
+			     XDP_FLAGS, NULL);
+	if (!ASSERT_GE(ret, 0, "bpf_xdp_attach"))
+		goto out;
+
+	sock_fd = xsk_socket__fd(rx_xsk.socket);
+	ret = bpf_map_update_elem(bpf_map__fd(bpf_obj->maps.xsk), &queue_id, &sock_fd, 0);
+	if (!ASSERT_GE(ret, 0, "bpf_map_update_elem"))
+		goto out;
+
+	switch_ns_to_tx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns tx"))
+		goto out;
+
+	/* Setup separate AF_XDP for TX interface nad send packet to the RX socket. */
+	tx_ifindex = if_nametoindex(TX_NAME);
+	ret = open_xsk(tx_ifindex, &tx_xsk);
+	if (!ASSERT_OK(ret, "open_xsk(TX_NAME)"))
+		goto out;
+
+	if (!ASSERT_GE(generate_packet(&tx_xsk, AF_XDP_CONSUMER_PORT), 0,
+		       "generate AF_XDP_CONSUMER_PORT"))
+		goto out;
+
+	switch_ns_to_rx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns rx"))
+		goto out;
+
+	/* Verify packet sent from AF_XDP has proper metadata. */
+	if (!ASSERT_GE(verify_xsk_metadata(&rx_xsk, true), 0,
+		       "verify_xsk_metadata"))
+		goto out;
+
+	switch_ns_to_tx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns tx"))
+		goto out;
+	complete_tx(&tx_xsk);
+
+	/* Now check metadata of packet, generated with network stack */
+	if (!ASSERT_GE(generate_packet_inet(), 0, "generate UDP packet"))
+		goto out;
+
+	switch_ns_to_rx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns rx"))
+		goto out;
+
+	if (!ASSERT_GE(verify_xsk_metadata(&rx_xsk, false), 0,
+		       "verify_xsk_metadata"))
+		goto out;
+
+	/* Make sure freplace correctly picks up original bound device
+	 * and doesn't crash.
+	 */
+
+	bpf_obj2 = xdp_metadata2__open();
+	if (!ASSERT_OK_PTR(bpf_obj2, "open skeleton"))
+		goto out;
+
+	new_prog = bpf_object__find_program_by_name(bpf_obj2->obj, "freplace_rx");
+	bpf_program__set_attach_target(new_prog, bpf_program__fd(prog), "rx");
+
+	if (!ASSERT_OK(xdp_metadata2__load(bpf_obj2), "load freplace skeleton"))
+		goto out;
+
+	if (!ASSERT_OK(xdp_metadata2__attach(bpf_obj2), "attach freplace"))
+		goto out;
+
+	switch_ns_to_tx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns tx"))
+		goto out;
+
+	/* Send packet to trigger . */
+	if (!ASSERT_GE(generate_packet(&tx_xsk, AF_XDP_CONSUMER_PORT), 0,
+		       "generate freplace packet"))
+		goto out;
+
+	switch_ns_to_rx(&tok);
+	if (!ASSERT_OK_PTR(tok, "setns rx"))
+		goto out;
+
+	while (!retries--) {
+		if (bpf_obj2->bss->called)
+			break;
+		usleep(10);
+	}
+	ASSERT_GT(bpf_obj2->bss->called, 0, "not called");
+
+out:
+	close_xsk(&rx_xsk);
+	close_xsk(&tx_xsk);
+	xdp_metadata2__destroy(bpf_obj2);
+	xdp_metadata__destroy(bpf_obj);
+	if (tok)
+		close_netns(tok);
+	SYS_NOFAIL("ip netns del " RX_NETNS_NAME);
+	SYS_NOFAIL("ip netns del " TX_NETNS_NAME);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c b/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
new file mode 100644
index 000000000000..92ef0aa50866
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_noinline.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_xdp_noinline.skel.h"
+
+void test_xdp_noinline(void)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	struct test_xdp_noinline *skel;
+	struct vip key = {.protocol = 6};
+	struct vip_meta {
+		__u32 flags;
+		__u32 vip_num;
+	} value = {.vip_num = VIP_NUM};
+	__u32 stats_key = VIP_NUM;
+	struct vip_stats {
+		__u64 bytes;
+		__u64 pkts;
+	} stats[nr_cpus];
+	struct real_definition {
+		union {
+			__be32 dst;
+			__be32 dstv6[4];
+		};
+		__u8 flags;
+	} real_def = {.dst = MAGIC_VAL};
+	__u32 ch_key = 11, real_num = 3;
+	int err, i;
+	__u64 bytes = 0, pkts = 0;
+	char buf[128];
+	u32 *magic = (u32 *)buf;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = &pkt_v4,
+		.data_size_in = sizeof(pkt_v4),
+		.data_out = buf,
+		.data_size_out = sizeof(buf),
+		.repeat = NUM_ITER,
+	);
+
+	skel = test_xdp_noinline__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
+		return;
+
+	bpf_map_update_elem(bpf_map__fd(skel->maps.vip_map), &key, &value, 0);
+	bpf_map_update_elem(bpf_map__fd(skel->maps.ch_rings), &ch_key, &real_num, 0);
+	bpf_map_update_elem(bpf_map__fd(skel->maps.reals), &real_num, &real_def, 0);
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v4), &topts);
+	ASSERT_OK(err, "ipv4 test_run");
+	ASSERT_EQ(topts.retval, 1, "ipv4 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 54, "ipv4 test_run data_size_out");
+	ASSERT_EQ(*magic, MAGIC_VAL, "ipv4 test_run magic");
+
+	topts.data_in = &pkt_v6;
+	topts.data_size_in = sizeof(pkt_v6);
+	topts.data_out = buf;
+	topts.data_size_out = sizeof(buf);
+
+	err = bpf_prog_test_run_opts(bpf_program__fd(skel->progs.balancer_ingress_v6), &topts);
+	ASSERT_OK(err, "ipv6 test_run");
+	ASSERT_EQ(topts.retval, 1, "ipv6 test_run retval");
+	ASSERT_EQ(topts.data_size_out, 74, "ipv6 test_run data_size_out");
+	ASSERT_EQ(*magic, MAGIC_VAL, "ipv6 test_run magic");
+
+	bpf_map_lookup_elem(bpf_map__fd(skel->maps.stats), &stats_key, stats);
+	for (i = 0; i < nr_cpus; i++) {
+		bytes += stats[i].bytes;
+		pkts += stats[i].pkts;
+	}
+	ASSERT_EQ(bytes, MAGIC_BYTES * NUM_ITER * 2, "stats bytes");
+	ASSERT_EQ(pkts, NUM_ITER * 2, "stats pkts");
+	test_xdp_noinline__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_perf.c b/tools/testing/selftests/bpf/prog_tests/xdp_perf.c
new file mode 100644
index 000000000000..ec5369f247cb
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_perf.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_progs.h>
+
+void test_xdp_perf(void)
+{
+	const char *file = "./xdp_dummy.bpf.o";
+	struct bpf_object *obj;
+	char in[128], out[128];
+	int err, prog_fd;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = in,
+		.data_size_in = sizeof(in),
+		.data_out = out,
+		.data_size_out = sizeof(out),
+		.repeat = 1000000,
+	);
+
+	err = bpf_prog_test_load(file, BPF_PROG_TYPE_XDP, &obj, &prog_fd);
+	if (CHECK_FAIL(err))
+		return;
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "test_run");
+	ASSERT_EQ(topts.retval, XDP_PASS, "test_run retval");
+	ASSERT_EQ(topts.data_size_out, 128, "test_run data_size_out");
+
+	bpf_object__close(obj);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c b/tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c
new file mode 100644
index 000000000000..efa350d04ec5
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_pull_data.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "test_xdp_pull_data.skel.h"
+
+#define PULL_MAX	(1 << 31)
+#define PULL_PLUS_ONE	(1 << 30)
+
+#define XDP_PACKET_HEADROOM 256
+
+/* Find headroom and tailroom occupied by struct xdp_frame and struct
+ * skb_shared_info so that we can calculate the maximum pull lengths for
+ * test cases. They might not be the real size of the structures due to
+ * cache alignment.
+ */
+static int find_xdp_sizes(struct test_xdp_pull_data *skel, int frame_sz)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct xdp_md ctx = {};
+	int prog_fd, err;
+	__u8 *buf;
+
+	buf = calloc(frame_sz, sizeof(__u8));
+	if (!ASSERT_OK_PTR(buf, "calloc buf"))
+		return -ENOMEM;
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = frame_sz;
+	topts.data_size_out = frame_sz;
+	/* Pass a data_end larger than the linear space available to make sure
+	 * bpf_prog_test_run_xdp() will fill the linear data area so that
+	 * xdp_find_sizes can infer the size of struct skb_shared_info
+	 */
+	ctx.data_end = frame_sz;
+	topts.ctx_in = &ctx;
+	topts.ctx_out = &ctx;
+	topts.ctx_size_in = sizeof(ctx);
+	topts.ctx_size_out = sizeof(ctx);
+
+	prog_fd = bpf_program__fd(skel->progs.xdp_find_sizes);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+
+	free(buf);
+
+	return err;
+}
+
+/* xdp_pull_data_prog will directly read a marker 0xbb stored at buf[1024]
+ * so caller expecting XDP_PASS should always pass pull_len no less than 1024
+ */
+static void run_test(struct test_xdp_pull_data *skel, int retval,
+		     int frame_sz, int buff_len, int meta_len, int data_len,
+		     int pull_len)
+{
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+	struct xdp_md ctx = {};
+	int prog_fd, err;
+	__u8 *buf;
+
+	buf = calloc(buff_len, sizeof(__u8));
+	if (!ASSERT_OK_PTR(buf, "calloc buf"))
+		return;
+
+	buf[meta_len + 1023] = 0xaa;
+	buf[meta_len + 1024] = 0xbb;
+	buf[meta_len + 1025] = 0xcc;
+
+	topts.data_in = buf;
+	topts.data_out = buf;
+	topts.data_size_in = buff_len;
+	topts.data_size_out = buff_len;
+	ctx.data = meta_len;
+	ctx.data_end = meta_len + data_len;
+	topts.ctx_in = &ctx;
+	topts.ctx_out = &ctx;
+	topts.ctx_size_in = sizeof(ctx);
+	topts.ctx_size_out = sizeof(ctx);
+
+	skel->bss->data_len = data_len;
+	if (pull_len & PULL_MAX) {
+		int headroom = XDP_PACKET_HEADROOM - meta_len - skel->bss->xdpf_sz;
+		int tailroom = frame_sz - XDP_PACKET_HEADROOM -
+			       data_len - skel->bss->sinfo_sz;
+
+		pull_len = pull_len & PULL_PLUS_ONE ? 1 : 0;
+		pull_len += headroom + tailroom + data_len;
+	}
+	skel->bss->pull_len = pull_len;
+
+	prog_fd = bpf_program__fd(skel->progs.xdp_pull_data_prog);
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
+	ASSERT_EQ(topts.retval, retval, "xdp_pull_data_prog retval");
+
+	if (retval == XDP_DROP)
+		goto out;
+
+	ASSERT_EQ(ctx.data_end, meta_len + pull_len, "linear data size");
+	ASSERT_EQ(topts.data_size_out, buff_len, "linear + non-linear data size");
+	/* Make sure data around xdp->data_end was not messed up by
+	 * bpf_xdp_pull_data()
+	 */
+	ASSERT_EQ(buf[meta_len + 1023], 0xaa, "data[1023]");
+	ASSERT_EQ(buf[meta_len + 1024], 0xbb, "data[1024]");
+	ASSERT_EQ(buf[meta_len + 1025], 0xcc, "data[1025]");
+out:
+	free(buf);
+}
+
+static void test_xdp_pull_data_basic(void)
+{
+	u32 pg_sz, max_meta_len, max_data_len;
+	struct test_xdp_pull_data *skel;
+
+	skel = test_xdp_pull_data__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "test_xdp_pull_data__open_and_load"))
+		return;
+
+	pg_sz = sysconf(_SC_PAGE_SIZE);
+
+	if (find_xdp_sizes(skel, pg_sz))
+		goto out;
+
+	max_meta_len = XDP_PACKET_HEADROOM - skel->bss->xdpf_sz;
+	max_data_len = pg_sz - XDP_PACKET_HEADROOM - skel->bss->sinfo_sz;
+
+	/* linear xdp pkt, pull 0 byte */
+	run_test(skel, XDP_PASS, pg_sz, 2048, 0, 2048, 2048);
+
+	/* multi-buf pkt, pull results in linear xdp pkt */
+	run_test(skel, XDP_PASS, pg_sz, 2048, 0, 1024, 2048);
+
+	/* multi-buf pkt, pull 1 byte to linear data area */
+	run_test(skel, XDP_PASS, pg_sz, 9000, 0, 1024, 1025);
+
+	/* multi-buf pkt, pull 0 byte to linear data area */
+	run_test(skel, XDP_PASS, pg_sz, 9000, 0, 1025, 1025);
+
+	/* multi-buf pkt, empty linear data area, pull requires memmove */
+	run_test(skel, XDP_PASS, pg_sz, 9000, 0, 0, PULL_MAX);
+
+	/* multi-buf pkt, no headroom */
+	run_test(skel, XDP_PASS, pg_sz, 9000, max_meta_len, 1024, PULL_MAX);
+
+	/* multi-buf pkt, no tailroom, pull requires memmove */
+	run_test(skel, XDP_PASS, pg_sz, 9000, 0, max_data_len, PULL_MAX);
+
+	/* Test cases with invalid pull length */
+
+	/* linear xdp pkt, pull more than total data len */
+	run_test(skel, XDP_DROP, pg_sz, 2048, 0, 2048, 2049);
+
+	/* multi-buf pkt with no space left in linear data area */
+	run_test(skel, XDP_DROP, pg_sz, 9000, max_meta_len, max_data_len,
+		 PULL_MAX | PULL_PLUS_ONE);
+
+	/* multi-buf pkt, empty linear data area */
+	run_test(skel, XDP_DROP, pg_sz, 9000, 0, 0, PULL_MAX | PULL_PLUS_ONE);
+
+	/* multi-buf pkt, no headroom */
+	run_test(skel, XDP_DROP, pg_sz, 9000, max_meta_len, 1024,
+		 PULL_MAX | PULL_PLUS_ONE);
+
+	/* multi-buf pkt, no tailroom */
+	run_test(skel, XDP_DROP, pg_sz, 9000, 0, max_data_len,
+		 PULL_MAX | PULL_PLUS_ONE);
+
+out:
+	test_xdp_pull_data__destroy(skel);
+}
+
+void test_xdp_pull_data(void)
+{
+	if (test__start_subtest("xdp_pull_data"))
+		test_xdp_pull_data_basic();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
new file mode 100644
index 000000000000..8b50a992d233
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <ctype.h>
+
+#define CMD_OUT_BUF_SIZE 1023
+
+#define SYS_OUT(cmd, ...) ({ \
+	char buf[1024]; \
+	snprintf(buf, sizeof(buf), (cmd), ##__VA_ARGS__); \
+	FILE *f = popen(buf, "r"); \
+	if (!ASSERT_OK_PTR(f, buf)) \
+		goto out; \
+	f; \
+})
+
+/* out must be at least `size * 4 + 1` bytes long */
+static void escape_str(char *out, const char *in, size_t size)
+{
+	static const char *hex = "0123456789ABCDEF";
+	size_t i;
+
+	for (i = 0; i < size; i++) {
+		if (isprint(in[i]) && in[i] != '\\' && in[i] != '\'') {
+			*out++ = in[i];
+		} else {
+			*out++ = '\\';
+			*out++ = 'x';
+			*out++ = hex[(in[i] >> 4) & 0xf];
+			*out++ = hex[in[i] & 0xf];
+		}
+	}
+	*out++ = '\0';
+}
+
+static bool expect_str(char *buf, size_t size, const char *str, const char *name)
+{
+	static char escbuf_expected[CMD_OUT_BUF_SIZE * 4];
+	static char escbuf_actual[CMD_OUT_BUF_SIZE * 4];
+	static int duration = 0;
+	bool ok;
+
+	ok = size == strlen(str) && !memcmp(buf, str, size);
+
+	if (!ok) {
+		escape_str(escbuf_expected, str, strlen(str));
+		escape_str(escbuf_actual, buf, size);
+	}
+	CHECK(!ok, name, "unexpected %s: actual '%s' != expected '%s'\n",
+	      name, escbuf_actual, escbuf_expected);
+
+	return ok;
+}
+
+static void test_synproxy(bool xdp)
+{
+	int server_fd = -1, client_fd = -1, accept_fd = -1;
+	char *prog_id = NULL, *prog_id_end;
+	struct nstoken *ns = NULL;
+	FILE *ctrl_file = NULL;
+	char buf[CMD_OUT_BUF_SIZE];
+	size_t size;
+
+	SYS(out, "ip netns add synproxy");
+
+	SYS(out, "ip link add tmp0 type veth peer name tmp1");
+	SYS(out, "ip link set tmp1 netns synproxy");
+	SYS(out, "ip link set tmp0 up");
+	SYS(out, "ip addr replace 198.18.0.1/24 dev tmp0");
+
+	/* When checksum offload is enabled, the XDP program sees wrong
+	 * checksums and drops packets.
+	 */
+	SYS(out, "ethtool -K tmp0 tx off");
+	if (xdp)
+		/* Workaround required for veth. */
+		SYS(out, "ip link set tmp0 xdp object xdp_dummy.bpf.o section xdp 2> /dev/null");
+
+	ns = open_netns("synproxy");
+	if (!ASSERT_OK_PTR(ns, "setns"))
+		goto out;
+
+	SYS(out, "ip link set lo up");
+	SYS(out, "ip link set tmp1 up");
+	SYS(out, "ip addr replace 198.18.0.2/24 dev tmp1");
+	SYS(out, "sysctl -w net.ipv4.tcp_syncookies=2");
+	SYS(out, "sysctl -w net.ipv4.tcp_timestamps=1");
+	SYS(out, "sysctl -w net.netfilter.nf_conntrack_tcp_loose=0");
+	SYS(out, "iptables-legacy -t raw -I PREROUTING \
+	    -i tmp1 -p tcp -m tcp --syn --dport 8080 -j CT --notrack");
+	SYS(out, "iptables-legacy -t filter -A INPUT \
+	    -i tmp1 -p tcp -m tcp --dport 8080 -m state --state INVALID,UNTRACKED \
+	    -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460");
+	SYS(out, "iptables-legacy -t filter -A INPUT \
+	    -i tmp1 -m state --state INVALID -j DROP");
+
+	ctrl_file = SYS_OUT("./xdp_synproxy --iface tmp1 --ports 8080 \
+			    --single --mss4 1460 --mss6 1440 \
+			    --wscale 7 --ttl 64%s", xdp ? "" : " --tc");
+	size = fread(buf, 1, sizeof(buf), ctrl_file);
+	pclose(ctrl_file);
+	if (!expect_str(buf, size, "Total SYNACKs generated: 0\n",
+			"initial SYNACKs"))
+		goto out;
+
+	if (!xdp) {
+		ctrl_file = SYS_OUT("tc filter show dev tmp1 ingress");
+		size = fread(buf, 1, sizeof(buf), ctrl_file);
+		pclose(ctrl_file);
+		prog_id = memmem(buf, size, " id ", 4);
+		if (!ASSERT_OK_PTR(prog_id, "find prog id"))
+			goto out;
+		prog_id += 4;
+		if (!ASSERT_LT(prog_id, buf + size, "find prog id begin"))
+			goto out;
+		prog_id_end = prog_id;
+		while (prog_id_end < buf + size && *prog_id_end >= '0' &&
+		       *prog_id_end <= '9')
+			prog_id_end++;
+		if (!ASSERT_LT(prog_id_end, buf + size, "find prog id end"))
+			goto out;
+		*prog_id_end = '\0';
+	}
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, "198.18.0.2", 8080, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto out;
+
+	close_netns(ns);
+	ns = NULL;
+
+	client_fd = connect_to_fd(server_fd, 10000);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto out;
+
+	accept_fd = accept(server_fd, NULL, NULL);
+	if (!ASSERT_GE(accept_fd, 0, "accept"))
+		goto out;
+
+	ns = open_netns("synproxy");
+	if (!ASSERT_OK_PTR(ns, "setns"))
+		goto out;
+
+	if (xdp)
+		ctrl_file = SYS_OUT("./xdp_synproxy --iface tmp1 --single");
+	else
+		ctrl_file = SYS_OUT("./xdp_synproxy --prog %s --single",
+				    prog_id);
+	size = fread(buf, 1, sizeof(buf), ctrl_file);
+	pclose(ctrl_file);
+	if (!expect_str(buf, size, "Total SYNACKs generated: 1\n",
+			"SYNACKs after connection"))
+		goto out;
+
+out:
+	if (accept_fd >= 0)
+		close(accept_fd);
+	if (client_fd >= 0)
+		close(client_fd);
+	if (server_fd >= 0)
+		close(server_fd);
+	if (ns)
+		close_netns(ns);
+
+	SYS_NOFAIL("ip link del tmp0");
+	SYS_NOFAIL("ip netns del synproxy");
+}
+
+void test_xdp_synproxy(void)
+{
+	if (test__start_subtest("xdp"))
+		test_synproxy(true);
+	if (test__start_subtest("tc"))
+		test_synproxy(false);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_vlan.c b/tools/testing/selftests/bpf/prog_tests/xdp_vlan.c
new file mode 100644
index 000000000000..18dd25344de7
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_vlan.c
@@ -0,0 +1,175 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Network topology:
+ *  -----------        -----------
+ *  |  NS1    |        |   NS2   |
+ *  | veth0  -|--------|- veth0  |
+ *  -----------        -----------
+ *
+ */
+
+#define _GNU_SOURCE
+#include <net/if.h>
+#include <uapi/linux/if_link.h>
+
+#include "network_helpers.h"
+#include "test_progs.h"
+#include "test_xdp_vlan.skel.h"
+
+
+#define VETH_NAME	"veth0"
+#define NS_MAX_SIZE	32
+#define NS1_NAME	"ns-xdp-vlan-1-"
+#define NS2_NAME	"ns-xdp-vlan-2-"
+#define NS1_IP_ADDR	"100.64.10.1"
+#define NS2_IP_ADDR	"100.64.10.2"
+#define VLAN_ID		4011
+
+static int setup_network(char *ns1, char *ns2)
+{
+	if (!ASSERT_OK(append_tid(ns1, NS_MAX_SIZE), "create ns1 name"))
+		goto fail;
+	if (!ASSERT_OK(append_tid(ns2, NS_MAX_SIZE), "create ns2 name"))
+		goto fail;
+
+	SYS(fail, "ip netns add %s", ns1);
+	SYS(fail, "ip netns add %s", ns2);
+	SYS(fail, "ip -n %s link add %s type veth peer name %s netns %s",
+	    ns1, VETH_NAME, VETH_NAME, ns2);
+
+	/* NOTICE: XDP require VLAN header inside packet payload
+	 *  - Thus, disable VLAN offloading driver features
+	 */
+	SYS(fail, "ip netns exec %s ethtool -K %s rxvlan off txvlan off", ns1, VETH_NAME);
+	SYS(fail, "ip netns exec %s ethtool -K %s rxvlan off txvlan off", ns2, VETH_NAME);
+
+	/* NS1 configuration */
+	SYS(fail, "ip -n %s addr add %s/24 dev %s", ns1, NS1_IP_ADDR, VETH_NAME);
+	SYS(fail, "ip -n %s link set %s up", ns1, VETH_NAME);
+
+	/* NS2 configuration */
+	SYS(fail, "ip -n %s link add link %s name %s.%d type vlan id %d",
+	    ns2, VETH_NAME, VETH_NAME, VLAN_ID, VLAN_ID);
+	SYS(fail, "ip -n %s addr add %s/24 dev %s.%d", ns2, NS2_IP_ADDR, VETH_NAME, VLAN_ID);
+	SYS(fail, "ip -n %s link set %s up", ns2, VETH_NAME);
+	SYS(fail, "ip -n %s link set %s.%d up", ns2, VETH_NAME, VLAN_ID);
+
+	/* At this point ping should fail because VLAN tags are only used by NS2 */
+	return !SYS_NOFAIL("ip netns exec %s ping -W 1 -c1 %s", ns2, NS1_IP_ADDR);
+
+fail:
+	return -1;
+}
+
+static void cleanup_network(const char *ns1, const char *ns2)
+{
+	SYS_NOFAIL("ip netns del %s", ns1);
+	SYS_NOFAIL("ip netns del %s", ns2);
+}
+
+static void xdp_vlan(struct bpf_program *xdp, struct bpf_program *tc, u32 flags)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_EGRESS);
+	LIBBPF_OPTS(bpf_tc_opts, tc_opts, .handle = 1, .priority = 1);
+	char ns1[NS_MAX_SIZE] = NS1_NAME;
+	char ns2[NS_MAX_SIZE] = NS2_NAME;
+	struct nstoken *nstoken = NULL;
+	int interface;
+	int ret;
+
+	if (!ASSERT_OK(setup_network(ns1, ns2), "setup network"))
+		goto cleanup;
+
+	nstoken = open_netns(ns1);
+	if (!ASSERT_OK_PTR(nstoken, "open NS1"))
+		goto cleanup;
+
+	interface = if_nametoindex(VETH_NAME);
+	if (!ASSERT_NEQ(interface, 0, "get interface index"))
+		goto cleanup;
+
+	ret = bpf_xdp_attach(interface, bpf_program__fd(xdp), flags, NULL);
+	if (!ASSERT_OK(ret, "attach xdp_vlan_change"))
+		goto cleanup;
+
+	tc_hook.ifindex = interface;
+	ret = bpf_tc_hook_create(&tc_hook);
+	if (!ASSERT_OK(ret, "bpf_tc_hook_create"))
+		goto detach_xdp;
+
+	/* Now we'll use BPF programs to pop/push the VLAN tags */
+	tc_opts.prog_fd = bpf_program__fd(tc);
+	ret = bpf_tc_attach(&tc_hook, &tc_opts);
+	if (!ASSERT_OK(ret, "bpf_tc_attach"))
+		goto detach_xdp;
+
+	close_netns(nstoken);
+	nstoken = NULL;
+
+	/* Now the namespaces can reach each-other, test with pings */
+	SYS(detach_tc, "ip netns exec %s ping -i 0.2 -W 2 -c 2 %s > /dev/null", ns1, NS2_IP_ADDR);
+	SYS(detach_tc, "ip netns exec %s ping -i 0.2 -W 2 -c 2 %s > /dev/null", ns2, NS1_IP_ADDR);
+
+
+detach_tc:
+	bpf_tc_detach(&tc_hook, &tc_opts);
+detach_xdp:
+	bpf_xdp_detach(interface, flags, NULL);
+cleanup:
+	close_netns(nstoken);
+	cleanup_network(ns1, ns2);
+}
+
+/* First test: Remove VLAN by setting VLAN ID 0, using "xdp_vlan_change"
+ * egress use TC to add back VLAN tag 4011
+ */
+void test_xdp_vlan_change(void)
+{
+	struct test_xdp_vlan *skel;
+
+	skel = test_xdp_vlan__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "xdp_vlan__open_and_load"))
+		return;
+
+	if (test__start_subtest("0"))
+		xdp_vlan(skel->progs.xdp_vlan_change, skel->progs.tc_vlan_push, 0);
+
+	if (test__start_subtest("DRV_MODE"))
+		xdp_vlan(skel->progs.xdp_vlan_change, skel->progs.tc_vlan_push,
+			 XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("SKB_MODE"))
+		xdp_vlan(skel->progs.xdp_vlan_change, skel->progs.tc_vlan_push,
+			 XDP_FLAGS_SKB_MODE);
+
+	test_xdp_vlan__destroy(skel);
+}
+
+/* Second test: XDP prog fully remove vlan header
+ *
+ * Catch kernel bug for generic-XDP, that doesn't allow us to
+ * remove a VLAN header, because skb->protocol still contain VLAN
+ * ETH_P_8021Q indication, and this cause overwriting of our changes.
+ */
+void test_xdp_vlan_remove(void)
+{
+	struct test_xdp_vlan *skel;
+
+	skel = test_xdp_vlan__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "xdp_vlan__open_and_load"))
+		return;
+
+	if (test__start_subtest("0"))
+		xdp_vlan(skel->progs.xdp_vlan_remove_outer2, skel->progs.tc_vlan_push, 0);
+
+	if (test__start_subtest("DRV_MODE"))
+		xdp_vlan(skel->progs.xdp_vlan_remove_outer2, skel->progs.tc_vlan_push,
+			 XDP_FLAGS_DRV_MODE);
+
+	if (test__start_subtest("SKB_MODE"))
+		xdp_vlan(skel->progs.xdp_vlan_remove_outer2, skel->progs.tc_vlan_push,
+			 XDP_FLAGS_SKB_MODE);
+
+	test_xdp_vlan__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xdpwall.c b/tools/testing/selftests/bpf/prog_tests/xdpwall.c
new file mode 100644
index 000000000000..4599154c8e9b
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdpwall.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "test_progs.h"
+#include "xdpwall.skel.h"
+
+void test_xdpwall(void)
+{
+	struct xdpwall *skel;
+
+	skel = xdpwall__open_and_load();
+	ASSERT_OK_PTR(skel, "Does LLVM have https://github.com/llvm/llvm-project/commit/ea72b0319d7b0f0c2fcf41d121afa5d031b319d5?");
+
+	xdpwall__destroy(skel);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xfrm_info.c b/tools/testing/selftests/bpf/prog_tests/xfrm_info.c
new file mode 100644
index 000000000000..d37f5394e199
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xfrm_info.c
@@ -0,0 +1,347 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+
+/*
+ * Topology:
+ * ---------
+ *   NS0 namespace         |   NS1 namespace        | NS2 namespace
+ *                         |                        |
+ *   +---------------+     |   +---------------+    |
+ *   |    ipsec0     |---------|    ipsec0     |    |
+ *   | 192.168.1.100 |     |   | 192.168.1.200 |    |
+ *   | if_id: bpf    |     |   +---------------+    |
+ *   +---------------+     |                        |
+ *           |             |                        |   +---------------+
+ *           |             |                        |   |    ipsec0     |
+ *           \------------------------------------------| 192.168.1.200 |
+ *                         |                        |   +---------------+
+ *                         |                        |
+ *                         |                        | (overlay network)
+ *      ------------------------------------------------------
+ *                         |                        | (underlay network)
+ *   +--------------+      |   +--------------+     |
+ *   |    veth01    |----------|    veth10    |     |
+ *   | 172.16.1.100 |      |   | 172.16.1.200 |     |
+ *   ---------------+      |   +--------------+     |
+ *                         |                        |
+ *   +--------------+      |                        |   +--------------+
+ *   |    veth02    |-----------------------------------|    veth20    |
+ *   | 172.16.2.100 |      |                        |   | 172.16.2.200 |
+ *   +--------------+      |                        |   +--------------+
+ *
+ *
+ * Test Packet flow
+ * -----------
+ *  The tests perform 'ping 192.168.1.200' from the NS0 namespace:
+ *  1) request is routed to NS0 ipsec0
+ *  2) NS0 ipsec0 tc egress BPF program is triggered and sets the if_id based
+ *     on the requested value. This makes the ipsec0 device in external mode
+ *     select the destination tunnel
+ *  3) ping reaches the other namespace (NS1 or NS2 based on which if_id was
+ *     used) and response is sent
+ *  4) response is received on NS0 ipsec0, tc ingress program is triggered and
+ *     records the response if_id
+ *  5) requested if_id is compared with received if_id
+ */
+
+#include <net/if.h>
+#include <linux/rtnetlink.h>
+#include <linux/if_link.h>
+
+#include "test_progs.h"
+#include "network_helpers.h"
+#include "xfrm_info.skel.h"
+
+#define NS0 "xfrm_test_ns0"
+#define NS1 "xfrm_test_ns1"
+#define NS2 "xfrm_test_ns2"
+
+#define IF_ID_0_TO_1 1
+#define IF_ID_0_TO_2 2
+#define IF_ID_1 3
+#define IF_ID_2 4
+
+#define IP4_ADDR_VETH01 "172.16.1.100"
+#define IP4_ADDR_VETH10 "172.16.1.200"
+#define IP4_ADDR_VETH02 "172.16.2.100"
+#define IP4_ADDR_VETH20 "172.16.2.200"
+
+#define ESP_DUMMY_PARAMS \
+    "proto esp aead 'rfc4106(gcm(aes))' " \
+    "0xe4d8f4b4da1df18a3510b3781496daa82488b713 128 mode tunnel "
+
+static int attach_tc_prog(struct bpf_tc_hook *hook, int igr_fd, int egr_fd)
+{
+	LIBBPF_OPTS(bpf_tc_opts, opts1, .handle = 1, .priority = 1,
+		    .prog_fd = igr_fd);
+	LIBBPF_OPTS(bpf_tc_opts, opts2, .handle = 1, .priority = 1,
+		    .prog_fd = egr_fd);
+	int ret;
+
+	ret = bpf_tc_hook_create(hook);
+	if (!ASSERT_OK(ret, "create tc hook"))
+		return ret;
+
+	if (igr_fd >= 0) {
+		hook->attach_point = BPF_TC_INGRESS;
+		ret = bpf_tc_attach(hook, &opts1);
+		if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+			bpf_tc_hook_destroy(hook);
+			return ret;
+		}
+	}
+
+	if (egr_fd >= 0) {
+		hook->attach_point = BPF_TC_EGRESS;
+		ret = bpf_tc_attach(hook, &opts2);
+		if (!ASSERT_OK(ret, "bpf_tc_attach")) {
+			bpf_tc_hook_destroy(hook);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static void cleanup(void)
+{
+	SYS_NOFAIL("test -f /var/run/netns/" NS0 " && ip netns delete " NS0);
+	SYS_NOFAIL("test -f /var/run/netns/" NS1 " && ip netns delete " NS1);
+	SYS_NOFAIL("test -f /var/run/netns/" NS2 " && ip netns delete " NS2);
+}
+
+static int config_underlay(void)
+{
+	SYS(fail, "ip netns add " NS0);
+	SYS(fail, "ip netns add " NS1);
+	SYS(fail, "ip netns add " NS2);
+
+	/* NS0 <-> NS1 [veth01 <-> veth10] */
+	SYS(fail, "ip link add veth01 netns " NS0 " type veth peer name veth10 netns " NS1);
+	SYS(fail, "ip -net " NS0 " addr add " IP4_ADDR_VETH01 "/24 dev veth01");
+	SYS(fail, "ip -net " NS0 " link set dev veth01 up");
+	SYS(fail, "ip -net " NS1 " addr add " IP4_ADDR_VETH10 "/24 dev veth10");
+	SYS(fail, "ip -net " NS1 " link set dev veth10 up");
+
+	/* NS0 <-> NS2 [veth02 <-> veth20] */
+	SYS(fail, "ip link add veth02 netns " NS0 " type veth peer name veth20 netns " NS2);
+	SYS(fail, "ip -net " NS0 " addr add " IP4_ADDR_VETH02 "/24 dev veth02");
+	SYS(fail, "ip -net " NS0 " link set dev veth02 up");
+	SYS(fail, "ip -net " NS2 " addr add " IP4_ADDR_VETH20 "/24 dev veth20");
+	SYS(fail, "ip -net " NS2 " link set dev veth20 up");
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int setup_xfrm_tunnel_ns(const char *ns, const char *ipv4_local,
+				const char *ipv4_remote, int if_id)
+{
+	/* State: local -> remote */
+	SYS(fail, "ip -net %s xfrm state add src %s dst %s spi 1 "
+	    ESP_DUMMY_PARAMS "if_id %d", ns, ipv4_local, ipv4_remote, if_id);
+
+	/* State: local <- remote */
+	SYS(fail, "ip -net %s xfrm state add src %s dst %s spi 1 "
+	    ESP_DUMMY_PARAMS "if_id %d", ns, ipv4_remote, ipv4_local, if_id);
+
+	/* Policy: local -> remote */
+	SYS(fail, "ip -net %s xfrm policy add dir out src 0.0.0.0/0 dst 0.0.0.0/0 "
+	    "if_id %d tmpl src %s dst %s proto esp mode tunnel if_id %d", ns,
+	    if_id, ipv4_local, ipv4_remote, if_id);
+
+	/* Policy: local <- remote */
+	SYS(fail, "ip -net %s xfrm policy add dir in src 0.0.0.0/0 dst 0.0.0.0/0 "
+	    "if_id %d tmpl src %s dst %s proto esp mode tunnel if_id %d", ns,
+	    if_id, ipv4_remote, ipv4_local, if_id);
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int setup_xfrm_tunnel(const char *ns_a, const char *ns_b,
+			     const char *ipv4_a, const char *ipv4_b,
+			     int if_id_a, int if_id_b)
+{
+	return setup_xfrm_tunnel_ns(ns_a, ipv4_a, ipv4_b, if_id_a) ||
+		setup_xfrm_tunnel_ns(ns_b, ipv4_b, ipv4_a, if_id_b);
+}
+
+static struct rtattr *rtattr_add(struct nlmsghdr *nh, unsigned short type,
+				 unsigned short len)
+{
+	struct rtattr *rta =
+		(struct rtattr *)((uint8_t *)nh + RTA_ALIGN(nh->nlmsg_len));
+	rta->rta_type = type;
+	rta->rta_len = RTA_LENGTH(len);
+	nh->nlmsg_len = RTA_ALIGN(nh->nlmsg_len) + RTA_ALIGN(rta->rta_len);
+	return rta;
+}
+
+static struct rtattr *rtattr_add_str(struct nlmsghdr *nh, unsigned short type,
+				     const char *s)
+{
+	struct rtattr *rta = rtattr_add(nh, type, strlen(s));
+
+	memcpy(RTA_DATA(rta), s, strlen(s));
+	return rta;
+}
+
+static struct rtattr *rtattr_begin(struct nlmsghdr *nh, unsigned short type)
+{
+	return rtattr_add(nh, type, 0);
+}
+
+static void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)
+{
+	uint8_t *end = (uint8_t *)nh + nh->nlmsg_len;
+
+	attr->rta_len = end - (uint8_t *)attr;
+}
+
+static int setup_xfrmi_external_dev(const char *ns)
+{
+	struct {
+		struct nlmsghdr nh;
+		struct ifinfomsg info;
+		unsigned char data[128];
+	} req;
+	struct rtattr *link_info, *info_data;
+	struct nstoken *nstoken;
+	int ret = -1, sock = -1;
+	struct nlmsghdr *nh;
+
+	memset(&req, 0, sizeof(req));
+	nh = &req.nh;
+	nh->nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+	nh->nlmsg_type = RTM_NEWLINK;
+	nh->nlmsg_flags |= NLM_F_CREATE | NLM_F_REQUEST;
+
+	rtattr_add_str(nh, IFLA_IFNAME, "ipsec0");
+	link_info = rtattr_begin(nh, IFLA_LINKINFO);
+	rtattr_add_str(nh, IFLA_INFO_KIND, "xfrm");
+	info_data = rtattr_begin(nh, IFLA_INFO_DATA);
+	rtattr_add(nh, IFLA_XFRM_COLLECT_METADATA, 0);
+	rtattr_end(nh, info_data);
+	rtattr_end(nh, link_info);
+
+	nstoken = open_netns(ns);
+	if (!ASSERT_OK_PTR(nstoken, "setns"))
+		goto done;
+
+	sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, NETLINK_ROUTE);
+	if (!ASSERT_GE(sock, 0, "netlink socket"))
+		goto done;
+	ret = send(sock, nh, nh->nlmsg_len, 0);
+	if (!ASSERT_EQ(ret, nh->nlmsg_len, "netlink send length"))
+		goto done;
+
+	ret = 0;
+done:
+	if (sock != -1)
+		close(sock);
+	if (nstoken)
+		close_netns(nstoken);
+	return ret;
+}
+
+static int config_overlay(void)
+{
+	if (setup_xfrm_tunnel(NS0, NS1, IP4_ADDR_VETH01, IP4_ADDR_VETH10,
+			      IF_ID_0_TO_1, IF_ID_1))
+		goto fail;
+	if (setup_xfrm_tunnel(NS0, NS2, IP4_ADDR_VETH02, IP4_ADDR_VETH20,
+			      IF_ID_0_TO_2, IF_ID_2))
+		goto fail;
+
+	/* Older iproute2 doesn't support this option */
+	if (!ASSERT_OK(setup_xfrmi_external_dev(NS0), "xfrmi"))
+		goto fail;
+
+	SYS(fail, "ip -net " NS0 " addr add 192.168.1.100/24 dev ipsec0");
+	SYS(fail, "ip -net " NS0 " link set dev ipsec0 up");
+
+	SYS(fail, "ip -net " NS1 " link add ipsec0 type xfrm if_id %d", IF_ID_1);
+	SYS(fail, "ip -net " NS1 " addr add 192.168.1.200/24 dev ipsec0");
+	SYS(fail, "ip -net " NS1 " link set dev ipsec0 up");
+
+	SYS(fail, "ip -net " NS2 " link add ipsec0 type xfrm if_id %d", IF_ID_2);
+	SYS(fail, "ip -net " NS2 " addr add 192.168.1.200/24 dev ipsec0");
+	SYS(fail, "ip -net " NS2 " link set dev ipsec0 up");
+
+	return 0;
+fail:
+	return -1;
+}
+
+static int test_xfrm_ping(struct xfrm_info *skel, u32 if_id)
+{
+	skel->bss->req_if_id = if_id;
+
+	SYS(fail, "ping -i 0.01 -c 3 -w 10 -q 192.168.1.200 > /dev/null");
+
+	if (!ASSERT_EQ(skel->bss->resp_if_id, if_id, "if_id"))
+		goto fail;
+
+	return 0;
+fail:
+	return -1;
+}
+
+static void _test_xfrm_info(void)
+{
+	LIBBPF_OPTS(bpf_tc_hook, tc_hook, .attach_point = BPF_TC_INGRESS);
+	int get_xfrm_info_prog_fd, set_xfrm_info_prog_fd;
+	struct nstoken *nstoken = NULL;
+	struct xfrm_info *skel;
+	int ifindex;
+
+	/* load and attach bpf progs to ipsec dev tc hook point */
+	skel = xfrm_info__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "xfrm_info__open_and_load"))
+		goto done;
+	nstoken = open_netns(NS0);
+	if (!ASSERT_OK_PTR(nstoken, "setns " NS0))
+		goto done;
+	ifindex = if_nametoindex("ipsec0");
+	if (!ASSERT_NEQ(ifindex, 0, "ipsec0 ifindex"))
+		goto done;
+	tc_hook.ifindex = ifindex;
+	set_xfrm_info_prog_fd = bpf_program__fd(skel->progs.set_xfrm_info);
+	get_xfrm_info_prog_fd = bpf_program__fd(skel->progs.get_xfrm_info);
+	if (!ASSERT_GE(set_xfrm_info_prog_fd, 0, "bpf_program__fd"))
+		goto done;
+	if (!ASSERT_GE(get_xfrm_info_prog_fd, 0, "bpf_program__fd"))
+		goto done;
+	if (attach_tc_prog(&tc_hook, get_xfrm_info_prog_fd,
+			   set_xfrm_info_prog_fd))
+		goto done;
+
+	/* perform test */
+	if (!ASSERT_EQ(test_xfrm_ping(skel, IF_ID_0_TO_1), 0, "ping " NS1))
+		goto done;
+	if (!ASSERT_EQ(test_xfrm_ping(skel, IF_ID_0_TO_2), 0, "ping " NS2))
+		goto done;
+
+done:
+	if (nstoken)
+		close_netns(nstoken);
+	xfrm_info__destroy(skel);
+}
+
+void test_xfrm_info(void)
+{
+	cleanup();
+
+	if (!ASSERT_OK(config_underlay(), "config_underlay"))
+		goto done;
+	if (!ASSERT_OK(config_overlay(), "config_overlay"))
+		goto done;
+
+	if (test__start_subtest("xfrm_info"))
+		_test_xfrm_info();
+
+done:
+	cleanup();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/xsk.c b/tools/testing/selftests/bpf/prog_tests/xsk.c
new file mode 100644
index 000000000000..dd4c35c0e428
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xsk.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <net/if.h>
+#include <stdarg.h>
+
+#include "network_helpers.h"
+#include "test_progs.h"
+#include "test_xsk.h"
+#include "xsk_xdp_progs.skel.h"
+
+#define VETH_RX "veth0"
+#define VETH_TX "veth1"
+#define MTU	1500
+
+int setup_veth(bool busy_poll)
+{
+	SYS(fail,
+	"ip link add %s numtxqueues 4 numrxqueues 4 type veth peer name %s numtxqueues 4 numrxqueues 4",
+	VETH_RX, VETH_TX);
+	SYS(fail, "sysctl -wq net.ipv6.conf.%s.disable_ipv6=1", VETH_RX);
+	SYS(fail, "sysctl -wq net.ipv6.conf.%s.disable_ipv6=1", VETH_TX);
+
+	if (busy_poll) {
+		SYS(fail, "echo 2 > /sys/class/net/%s/napi_defer_hard_irqs", VETH_RX);
+		SYS(fail, "echo 200000 > /sys/class/net/%s/gro_flush_timeout", VETH_RX);
+		SYS(fail, "echo 2 > /sys/class/net/%s/napi_defer_hard_irqs", VETH_TX);
+		SYS(fail, "echo 200000 > /sys/class/net/%s/gro_flush_timeout", VETH_TX);
+	}
+
+	SYS(fail, "ip link set %s mtu %d", VETH_RX, MTU);
+	SYS(fail, "ip link set %s mtu %d", VETH_TX, MTU);
+	SYS(fail, "ip link set %s up", VETH_RX);
+	SYS(fail, "ip link set %s up", VETH_TX);
+
+	return 0;
+
+fail:
+	return -1;
+}
+
+void delete_veth(void)
+{
+	SYS_NOFAIL("ip link del %s", VETH_RX);
+	SYS_NOFAIL("ip link del %s", VETH_TX);
+}
+
+int configure_ifobj(struct ifobject *tx, struct ifobject *rx)
+{
+	rx->ifindex = if_nametoindex(VETH_RX);
+	if (!ASSERT_OK_FD(rx->ifindex, "get RX ifindex"))
+		return -1;
+
+	tx->ifindex = if_nametoindex(VETH_TX);
+	if (!ASSERT_OK_FD(tx->ifindex, "get TX ifindex"))
+		return -1;
+
+	tx->shared_umem = false;
+	rx->shared_umem = false;
+
+
+	return 0;
+}
+
+static void test_xsk(const struct test_spec *test_to_run, enum test_mode mode)
+{
+	struct ifobject *ifobj_tx, *ifobj_rx;
+	struct test_spec test;
+	int ret;
+
+	ifobj_tx = ifobject_create();
+	if (!ASSERT_OK_PTR(ifobj_tx, "create ifobj_tx"))
+		return;
+
+	ifobj_rx = ifobject_create();
+	if (!ASSERT_OK_PTR(ifobj_rx, "create ifobj_rx"))
+		goto delete_tx;
+
+	if (!ASSERT_OK(configure_ifobj(ifobj_tx, ifobj_rx), "conigure ifobj"))
+		goto delete_rx;
+
+	ret = get_hw_ring_size(ifobj_tx->ifname, &ifobj_tx->ring);
+	if (!ret) {
+		ifobj_tx->hw_ring_size_supp = true;
+		ifobj_tx->set_ring.default_tx = ifobj_tx->ring.tx_pending;
+		ifobj_tx->set_ring.default_rx = ifobj_tx->ring.rx_pending;
+	}
+
+	if (!ASSERT_OK(init_iface(ifobj_rx, worker_testapp_validate_rx), "init RX"))
+		goto delete_rx;
+	if (!ASSERT_OK(init_iface(ifobj_tx, worker_testapp_validate_tx), "init TX"))
+		goto delete_rx;
+
+	test_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
+
+	test.tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	if (!ASSERT_OK_PTR(test.tx_pkt_stream_default, "TX pkt generation"))
+		goto delete_rx;
+	test.rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	if (!ASSERT_OK_PTR(test.rx_pkt_stream_default, "RX pkt generation"))
+		goto delete_rx;
+
+
+	test_init(&test, ifobj_tx, ifobj_rx, mode, test_to_run);
+	ret = test.test_func(&test);
+	if (ret != TEST_SKIP)
+		ASSERT_OK(ret, "Run test");
+	pkt_stream_restore_default(&test);
+
+	if (ifobj_tx->hw_ring_size_supp)
+		hw_ring_size_reset(ifobj_tx);
+
+	pkt_stream_delete(test.tx_pkt_stream_default);
+	pkt_stream_delete(test.rx_pkt_stream_default);
+	xsk_xdp_progs__destroy(ifobj_tx->xdp_progs);
+	xsk_xdp_progs__destroy(ifobj_rx->xdp_progs);
+
+delete_rx:
+	ifobject_delete(ifobj_rx);
+delete_tx:
+	ifobject_delete(ifobj_tx);
+}
+
+void test_ns_xsk_skb(void)
+{
+	int i;
+
+	if (!ASSERT_OK(setup_veth(false), "setup veth"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (test__start_subtest(tests[i].name))
+			test_xsk(&tests[i], TEST_MODE_SKB);
+	}
+
+	delete_veth();
+}
+
+void test_ns_xsk_drv(void)
+{
+	int i;
+
+	if (!ASSERT_OK(setup_veth(false), "setup veth"))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (test__start_subtest(tests[i].name))
+			test_xsk(&tests[i], TEST_MODE_DRV);
+	}
+
+	delete_veth();
+}
+
diff --git a/tools/testing/selftests/bpf/progs/access_map_in_map.c b/tools/testing/selftests/bpf/progs/access_map_in_map.c
new file mode 100644
index 000000000000..1126871c2ebd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/access_map_in_map.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <time.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+struct inner_map_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+} inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+	__array(values, struct inner_map_type);
+} outer_array_map SEC(".maps") = {
+	.values = {
+		[0] = &inner_map,
+	},
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+	__array(values, struct inner_map_type);
+} outer_htab_map SEC(".maps") = {
+	.values = {
+		[0] = &inner_map,
+	},
+};
+
+char _license[] SEC("license") = "GPL";
+
+int tgid = 0;
+
+static int acc_map_in_map(void *outer_map)
+{
+	int i, key, value = 0xdeadbeef;
+	void *inner_map;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != tgid)
+		return 0;
+
+	/* Find nonexistent inner map */
+	key = 1;
+	inner_map = bpf_map_lookup_elem(outer_map, &key);
+	if (inner_map)
+		return 0;
+
+	/* Find the old inner map */
+	key = 0;
+	inner_map = bpf_map_lookup_elem(outer_map, &key);
+	if (!inner_map)
+		return 0;
+
+	/* Wait for the old inner map to be replaced */
+	for (i = 0; i < 2048; i++)
+		bpf_map_update_elem(inner_map, &key, &value, 0);
+
+	return 0;
+}
+
+SEC("?kprobe/" SYS_PREFIX "sys_getpgid")
+int access_map_in_array(void *ctx)
+{
+	return acc_map_in_map(&outer_array_map);
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int sleepable_access_map_in_array(void *ctx)
+{
+	return acc_map_in_map(&outer_array_map);
+}
+
+SEC("?kprobe/" SYS_PREFIX "sys_getpgid")
+int access_map_in_htab(void *ctx)
+{
+	return acc_map_in_map(&outer_htab_map);
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int sleepable_access_map_in_htab(void *ctx)
+{
+	return acc_map_in_map(&outer_htab_map);
+}
diff --git a/tools/testing/selftests/bpf/progs/arena_atomics.c b/tools/testing/selftests/bpf/progs/arena_atomics.c
new file mode 100644
index 000000000000..d1841aac94a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_atomics.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include <stdatomic.h>
+#include "bpf_arena_common.h"
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 10); /* number of pages */
+#ifdef __TARGET_ARCH_arm64
+	__ulong(map_extra, 0x1ull << 32); /* start of mmap() region */
+#else
+	__ulong(map_extra, 0x1ull << 44); /* start of mmap() region */
+#endif
+} arena SEC(".maps");
+
+#if defined(ENABLE_ATOMICS_TESTS) && defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+bool skip_all_tests __attribute((__section__(".data"))) = false;
+#else
+bool skip_all_tests = true;
+#endif
+
+#if defined(ENABLE_ATOMICS_TESTS) &&		  \
+	defined(__BPF_FEATURE_ADDR_SPACE_CAST) && \
+	(defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	 (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64))
+bool skip_lacq_srel_tests __attribute((__section__(".data"))) = false;
+#else
+bool skip_lacq_srel_tests = true;
+#endif
+
+__u32 pid = 0;
+
+__u64 __arena_global add64_value = 1;
+__u64 __arena_global add64_result = 0;
+__u32 __arena_global add32_value = 1;
+__u32 __arena_global add32_result = 0;
+__u64 __arena_global add_stack_value_copy = 0;
+__u64 __arena_global add_stack_result = 0;
+__u64 __arena_global add_noreturn_value = 1;
+
+SEC("raw_tp/sys_enter")
+int add(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 add_stack_value = 1;
+
+	add64_result = __sync_fetch_and_add(&add64_value, 2);
+	add32_result = __sync_fetch_and_add(&add32_value, 2);
+	add_stack_result = __sync_fetch_and_add(&add_stack_value, 2);
+	add_stack_value_copy = add_stack_value;
+	__sync_fetch_and_add(&add_noreturn_value, 2);
+#endif
+
+	return 0;
+}
+
+__s64 __arena_global sub64_value = 1;
+__s64 __arena_global sub64_result = 0;
+__s32 __arena_global sub32_value = 1;
+__s32 __arena_global sub32_result = 0;
+__s64 __arena_global sub_stack_value_copy = 0;
+__s64 __arena_global sub_stack_result = 0;
+__s64 __arena_global sub_noreturn_value = 1;
+
+SEC("raw_tp/sys_enter")
+int sub(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 sub_stack_value = 1;
+
+	sub64_result = __sync_fetch_and_sub(&sub64_value, 2);
+	sub32_result = __sync_fetch_and_sub(&sub32_value, 2);
+	sub_stack_result = __sync_fetch_and_sub(&sub_stack_value, 2);
+	sub_stack_value_copy = sub_stack_value;
+	__sync_fetch_and_sub(&sub_noreturn_value, 2);
+#endif
+
+	return 0;
+}
+
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+_Atomic __u64 __arena_global and64_value = (0x110ull << 32);
+_Atomic __u32 __arena_global and32_value = 0x110;
+#else
+__u64 __arena_global and64_value = (0x110ull << 32);
+__u32 __arena_global and32_value = 0x110;
+#endif
+
+SEC("raw_tp/sys_enter")
+int and(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+	__c11_atomic_fetch_and(&and64_value, 0x011ull << 32, memory_order_relaxed);
+	__c11_atomic_fetch_and(&and32_value, 0x011, memory_order_relaxed);
+#else
+	__sync_fetch_and_and(&and64_value, 0x011ull << 32);
+	__sync_fetch_and_and(&and32_value, 0x011);
+#endif
+#endif
+
+	return 0;
+}
+
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+_Atomic __u32 __arena_global or32_value = 0x110;
+_Atomic __u64 __arena_global or64_value = (0x110ull << 32);
+#else
+__u32 __arena_global or32_value = 0x110;
+__u64 __arena_global or64_value = (0x110ull << 32);
+#endif
+
+SEC("raw_tp/sys_enter")
+int or(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+	__c11_atomic_fetch_or(&or64_value, 0x011ull << 32, memory_order_relaxed);
+	__c11_atomic_fetch_or(&or32_value, 0x011, memory_order_relaxed);
+#else
+	__sync_fetch_and_or(&or64_value, 0x011ull << 32);
+	__sync_fetch_and_or(&or32_value, 0x011);
+#endif
+#endif
+
+	return 0;
+}
+
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+_Atomic __u64 __arena_global xor64_value = (0x110ull << 32);
+_Atomic __u32 __arena_global xor32_value = 0x110;
+#else
+__u64 __arena_global xor64_value = (0x110ull << 32);
+__u32 __arena_global xor32_value = 0x110;
+#endif
+
+SEC("raw_tp/sys_enter")
+int xor(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+#ifdef __BPF_FEATURE_ATOMIC_MEM_ORDERING
+	__c11_atomic_fetch_xor(&xor64_value, 0x011ull << 32, memory_order_relaxed);
+	__c11_atomic_fetch_xor(&xor32_value, 0x011, memory_order_relaxed);
+#else
+	__sync_fetch_and_xor(&xor64_value, 0x011ull << 32);
+	__sync_fetch_and_xor(&xor32_value, 0x011);
+#endif
+#endif
+
+	return 0;
+}
+
+__u32 __arena_global cmpxchg32_value = 1;
+__u32 __arena_global cmpxchg32_result_fail = 0;
+__u32 __arena_global cmpxchg32_result_succeed = 0;
+__u64 __arena_global cmpxchg64_value = 1;
+__u64 __arena_global cmpxchg64_result_fail = 0;
+__u64 __arena_global cmpxchg64_result_succeed = 0;
+
+SEC("raw_tp/sys_enter")
+int cmpxchg(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	cmpxchg64_result_fail = __sync_val_compare_and_swap(&cmpxchg64_value, 0, 3);
+	cmpxchg64_result_succeed = __sync_val_compare_and_swap(&cmpxchg64_value, 1, 2);
+
+	cmpxchg32_result_fail = __sync_val_compare_and_swap(&cmpxchg32_value, 0, 3);
+	cmpxchg32_result_succeed = __sync_val_compare_and_swap(&cmpxchg32_value, 1, 2);
+#endif
+
+	return 0;
+}
+
+__u64 __arena_global xchg64_value = 1;
+__u64 __arena_global xchg64_result = 0;
+__u32 __arena_global xchg32_value = 1;
+__u32 __arena_global xchg32_result = 0;
+
+SEC("raw_tp/sys_enter")
+int xchg(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 val64 = 2;
+	__u32 val32 = 2;
+
+	xchg64_result = __sync_lock_test_and_set(&xchg64_value, val64);
+	xchg32_result = __sync_lock_test_and_set(&xchg32_value, val32);
+#endif
+
+	return 0;
+}
+
+__u64 __arena_global uaf_sink;
+volatile __u64 __arena_global uaf_recovery_fails;
+
+SEC("syscall")
+int uaf(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#if defined(ENABLE_ATOMICS_TESTS) && !defined(__TARGET_ARCH_arm64) && \
+    !defined(__TARGET_ARCH_x86)
+	__u32 __arena *page32;
+	__u64 __arena *page64;
+	void __arena *page;
+
+	page = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	bpf_arena_free_pages(&arena, page, 1);
+	uaf_recovery_fails = 24;
+
+	page32 = (__u32 __arena *)page;
+	uaf_sink += __sync_fetch_and_add(page32, 1);
+	uaf_recovery_fails -= 1;
+	__sync_add_and_fetch(page32, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_sub(page32, 1);
+	uaf_recovery_fails -= 1;
+	__sync_sub_and_fetch(page32, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_and(page32, 1);
+	uaf_recovery_fails -= 1;
+	__sync_and_and_fetch(page32, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_or(page32, 1);
+	uaf_recovery_fails -= 1;
+	__sync_or_and_fetch(page32, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_xor(page32, 1);
+	uaf_recovery_fails -= 1;
+	__sync_xor_and_fetch(page32, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_val_compare_and_swap(page32, 0, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_lock_test_and_set(page32, 1);
+	uaf_recovery_fails -= 1;
+
+	page64 = (__u64 __arena *)page;
+	uaf_sink += __sync_fetch_and_add(page64, 1);
+	uaf_recovery_fails -= 1;
+	__sync_add_and_fetch(page64, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_sub(page64, 1);
+	uaf_recovery_fails -= 1;
+	__sync_sub_and_fetch(page64, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_and(page64, 1);
+	uaf_recovery_fails -= 1;
+	__sync_and_and_fetch(page64, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_or(page64, 1);
+	uaf_recovery_fails -= 1;
+	__sync_or_and_fetch(page64, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_fetch_and_xor(page64, 1);
+	uaf_recovery_fails -= 1;
+	__sync_xor_and_fetch(page64, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_val_compare_and_swap(page64, 0, 1);
+	uaf_recovery_fails -= 1;
+	uaf_sink += __sync_lock_test_and_set(page64, 1);
+	uaf_recovery_fails -= 1;
+#endif
+
+	return 0;
+}
+
+#if __clang_major__ >= 18
+__u8 __arena_global load_acquire8_value = 0x12;
+__u16 __arena_global load_acquire16_value = 0x1234;
+__u32 __arena_global load_acquire32_value = 0x12345678;
+__u64 __arena_global load_acquire64_value = 0x1234567890abcdef;
+
+__u8 __arena_global load_acquire8_result = 0;
+__u16 __arena_global load_acquire16_result = 0;
+__u32 __arena_global load_acquire32_result = 0;
+__u64 __arena_global load_acquire64_result = 0;
+#else
+/* clang-17 crashes if the .addr_space.1 ELF section has holes. Work around
+ * this issue by defining the below variables as 64-bit.
+ */
+__u64 __arena_global load_acquire8_value;
+__u64 __arena_global load_acquire16_value;
+__u64 __arena_global load_acquire32_value;
+__u64 __arena_global load_acquire64_value;
+
+__u64 __arena_global load_acquire8_result;
+__u64 __arena_global load_acquire16_result;
+__u64 __arena_global load_acquire32_result;
+__u64 __arena_global load_acquire64_result;
+#endif
+
+SEC("raw_tp/sys_enter")
+int load_acquire(const void *ctx)
+{
+#if defined(ENABLE_ATOMICS_TESTS) &&		  \
+	defined(__BPF_FEATURE_ADDR_SPACE_CAST) && \
+	(defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	 (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64))
+
+#define LOAD_ACQUIRE_ARENA(SIZEOP, SIZE, SRC, DST)	\
+	{ asm volatile (				\
+	"r1 = %[" #SRC "] ll;"				\
+	"r1 = addr_space_cast(r1, 0x0, 0x1);"		\
+	".8byte %[load_acquire_insn];"			\
+	"r3 = %[" #DST "] ll;"				\
+	"r3 = addr_space_cast(r3, 0x0, 0x1);"		\
+	"*(" #SIZE " *)(r3 + 0) = r2;"			\
+	:						\
+	: __imm_addr(SRC),				\
+	  __imm_insn(load_acquire_insn,			\
+		     BPF_ATOMIC_OP(BPF_##SIZEOP, BPF_LOAD_ACQ,	\
+				   BPF_REG_2, BPF_REG_1, 0)),	\
+	  __imm_addr(DST)				\
+	: __clobber_all); }				\
+
+	LOAD_ACQUIRE_ARENA(B, u8, load_acquire8_value, load_acquire8_result)
+	LOAD_ACQUIRE_ARENA(H, u16, load_acquire16_value,
+			   load_acquire16_result)
+	LOAD_ACQUIRE_ARENA(W, u32, load_acquire32_value,
+			   load_acquire32_result)
+	LOAD_ACQUIRE_ARENA(DW, u64, load_acquire64_value,
+			   load_acquire64_result)
+#undef LOAD_ACQUIRE_ARENA
+
+#endif
+	return 0;
+}
+
+#if __clang_major__ >= 18
+__u8 __arena_global store_release8_result = 0;
+__u16 __arena_global store_release16_result = 0;
+__u32 __arena_global store_release32_result = 0;
+__u64 __arena_global store_release64_result = 0;
+#else
+/* clang-17 crashes if the .addr_space.1 ELF section has holes. Work around
+ * this issue by defining the below variables as 64-bit.
+ */
+__u64 __arena_global store_release8_result;
+__u64 __arena_global store_release16_result;
+__u64 __arena_global store_release32_result;
+__u64 __arena_global store_release64_result;
+#endif
+
+SEC("raw_tp/sys_enter")
+int store_release(const void *ctx)
+{
+#if defined(ENABLE_ATOMICS_TESTS) &&		  \
+	defined(__BPF_FEATURE_ADDR_SPACE_CAST) && \
+	(defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	 (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64))
+
+#define STORE_RELEASE_ARENA(SIZEOP, DST, VAL)	\
+	{ asm volatile (			\
+	"r1 = " VAL ";"				\
+	"r2 = %[" #DST "] ll;"			\
+	"r2 = addr_space_cast(r2, 0x0, 0x1);"	\
+	".8byte %[store_release_insn];"		\
+	:					\
+	: __imm_addr(DST),			\
+	  __imm_insn(store_release_insn,	\
+		     BPF_ATOMIC_OP(BPF_##SIZEOP, BPF_STORE_REL,	\
+				   BPF_REG_2, BPF_REG_1, 0))	\
+	: __clobber_all); }			\
+
+	STORE_RELEASE_ARENA(B, store_release8_result, "0x12")
+	STORE_RELEASE_ARENA(H, store_release16_result, "0x1234")
+	STORE_RELEASE_ARENA(W, store_release32_result, "0x12345678")
+	STORE_RELEASE_ARENA(DW, store_release64_result,
+			    "0x1234567890abcdef ll")
+#undef STORE_RELEASE_ARENA
+
+#endif
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/arena_htab.c b/tools/testing/selftests/bpf/progs/arena_htab.c
new file mode 100644
index 000000000000..81eaa94afeb0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_htab.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 100); /* number of pages */
+} arena SEC(".maps");
+
+#include "bpf_arena_htab.h"
+
+void __arena *htab_for_user;
+bool skip = false;
+
+int zero = 0;
+char __arena arr1[100000];
+char arr2[1000];
+
+SEC("syscall")
+int arena_htab_llvm(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST) || defined(BPF_ARENA_FORCE_ASM)
+	struct htab __arena *htab;
+	char __arena *arr = arr1;
+	__u64 i;
+
+	htab = bpf_alloc(sizeof(*htab));
+	cast_kern(htab);
+	htab_init(htab);
+
+	cast_kern(arr);
+
+	/* first run. No old elems in the table */
+	for (i = zero; i < 100000 && can_loop; i++) {
+		htab_update_elem(htab, i, i);
+		arr[i] = i;
+	}
+
+	/* should replace some elems with new ones */
+	for (i = zero; i < 1000 && can_loop; i++) {
+		htab_update_elem(htab, i, i);
+		/* Access mem to make the verifier use bounded loop logic */
+		arr2[i] = i;
+	}
+	cast_user(htab);
+	htab_for_user = htab;
+#else
+	skip = true;
+#endif
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/arena_htab_asm.c b/tools/testing/selftests/bpf/progs/arena_htab_asm.c
new file mode 100644
index 000000000000..6cd70ea12f0d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_htab_asm.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#define BPF_ARENA_FORCE_ASM
+#define arena_htab_llvm arena_htab_asm
+#include "arena_htab.c"
diff --git a/tools/testing/selftests/bpf/progs/arena_list.c b/tools/testing/selftests/bpf/progs/arena_list.c
new file mode 100644
index 000000000000..3a2ddcacbea6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_list.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 100); /* number of pages */
+#ifdef __TARGET_ARCH_arm64
+	__ulong(map_extra, 0x1ull << 32); /* start of mmap() region */
+#else
+	__ulong(map_extra, 0x1ull << 44); /* start of mmap() region */
+#endif
+} arena SEC(".maps");
+
+#include "bpf_arena_alloc.h"
+#include "bpf_arena_list.h"
+
+struct elem {
+	struct arena_list_node node;
+	__u64 value;
+};
+
+struct arena_list_head __arena *list_head;
+int list_sum;
+int cnt;
+bool skip = false;
+
+#ifdef __BPF_FEATURE_ADDR_SPACE_CAST
+long __arena arena_sum;
+int __arena test_val = 1;
+struct arena_list_head __arena global_head;
+#else
+long arena_sum SEC(".addr_space.1");
+int test_val SEC(".addr_space.1");
+#endif
+
+int zero;
+
+SEC("syscall")
+int arena_list_add(void *ctx)
+{
+#ifdef __BPF_FEATURE_ADDR_SPACE_CAST
+	__u64 i;
+
+	list_head = &global_head;
+
+	for (i = zero; i < cnt && can_loop; i++) {
+		struct elem __arena *n = bpf_alloc(sizeof(*n));
+
+		test_val++;
+		n->value = i;
+		arena_sum += i;
+		list_add_head(&n->node, list_head);
+	}
+#else
+	skip = true;
+#endif
+	return 0;
+}
+
+SEC("syscall")
+int arena_list_del(void *ctx)
+{
+#ifdef __BPF_FEATURE_ADDR_SPACE_CAST
+	struct elem __arena *n;
+	int sum = 0;
+
+	arena_sum = 0;
+	list_for_each_entry(n, list_head, node) {
+		sum += n->value;
+		arena_sum += n->value;
+		list_del(&n->node);
+		bpf_free(n);
+	}
+	list_sum = sum;
+#else
+	skip = true;
+#endif
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/arena_spin_lock.c b/tools/testing/selftests/bpf/progs/arena_spin_lock.c
new file mode 100644
index 000000000000..086b57a426cf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_spin_lock.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_arena_spin_lock.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 100); /* number of pages */
+#ifdef __TARGET_ARCH_arm64
+	__ulong(map_extra, 0x1ull << 32); /* start of mmap() region */
+#else
+	__ulong(map_extra, 0x1ull << 44); /* start of mmap() region */
+#endif
+} arena SEC(".maps");
+
+int cs_count;
+
+#if defined(ENABLE_ATOMICS_TESTS) && defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+arena_spinlock_t __arena lock;
+int test_skip = 1;
+#else
+int test_skip = 2;
+#endif
+
+int counter;
+int limit;
+
+SEC("tc")
+int prog(void *ctx)
+{
+	int ret = -2;
+
+#if defined(ENABLE_ATOMICS_TESTS) && defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	unsigned long flags;
+
+	if ((ret = arena_spin_lock_irqsave(&lock, flags))) {
+		if (ret == -EOPNOTSUPP)
+			test_skip = 3;
+		return ret;
+	}
+	if (counter != limit)
+		counter++;
+	bpf_repeat(cs_count);
+	ret = 0;
+	arena_spin_unlock_irqrestore(&lock, flags);
+#endif
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/arena_strsearch.c b/tools/testing/selftests/bpf/progs/arena_strsearch.c
new file mode 100644
index 000000000000..ef6b76658f7f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/arena_strsearch.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include "bpf_experimental.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 100); /* number of pages */
+} arena SEC(".maps");
+
+#include "bpf_arena_strsearch.h"
+
+struct glob_test {
+	char const __arena *pat, *str;
+	bool expected;
+};
+
+static bool test(char const __arena *pat, char const __arena *str, bool expected)
+{
+	bool match = glob_match(pat, str);
+	bool success = match == expected;
+
+	/* bpf_printk("glob_match %s %s res %d ok %d", pat, str, match, success); */
+	return success;
+}
+
+/*
+ * The tests are all jammed together in one array to make it simpler
+ * to place that array in the .init.rodata section.  The obvious
+ * "array of structures containing char *" has no way to force the
+ * pointed-to strings to be in a particular section.
+ *
+ * Anyway, a test consists of:
+ * 1. Expected glob_match result: '1' or '0'.
+ * 2. Pattern to match: null-terminated string
+ * 3. String to match against: null-terminated string
+ *
+ * The list of tests is terminated with a final '\0' instead of
+ * a glob_match result character.
+ */
+static const char __arena glob_tests[] =
+	/* Some basic tests */
+	"1" "a\0" "a\0"
+	"0" "a\0" "b\0"
+	"0" "a\0" "aa\0"
+	"0" "a\0" "\0"
+	"1" "\0" "\0"
+	"0" "\0" "a\0"
+	/* Simple character class tests */
+	"1" "[a]\0" "a\0"
+	"0" "[a]\0" "b\0"
+	"0" "[!a]\0" "a\0"
+	"1" "[!a]\0" "b\0"
+	"1" "[ab]\0" "a\0"
+	"1" "[ab]\0" "b\0"
+	"0" "[ab]\0" "c\0"
+	"1" "[!ab]\0" "c\0"
+	"1" "[a-c]\0" "b\0"
+	"0" "[a-c]\0" "d\0"
+	/* Corner cases in character class parsing */
+	"1" "[a-c-e-g]\0" "-\0"
+	"0" "[a-c-e-g]\0" "d\0"
+	"1" "[a-c-e-g]\0" "f\0"
+	"1" "[]a-ceg-ik[]\0" "a\0"
+	"1" "[]a-ceg-ik[]\0" "]\0"
+	"1" "[]a-ceg-ik[]\0" "[\0"
+	"1" "[]a-ceg-ik[]\0" "h\0"
+	"0" "[]a-ceg-ik[]\0" "f\0"
+	"0" "[!]a-ceg-ik[]\0" "h\0"
+	"0" "[!]a-ceg-ik[]\0" "]\0"
+	"1" "[!]a-ceg-ik[]\0" "f\0"
+	/* Simple wild cards */
+	"1" "?\0" "a\0"
+	"0" "?\0" "aa\0"
+	"0" "??\0" "a\0"
+	"1" "?x?\0" "axb\0"
+	"0" "?x?\0" "abx\0"
+	"0" "?x?\0" "xab\0"
+	/* Asterisk wild cards (backtracking) */
+	"0" "*??\0" "a\0"
+	"1" "*??\0" "ab\0"
+	"1" "*??\0" "abc\0"
+	"1" "*??\0" "abcd\0"
+	"0" "??*\0" "a\0"
+	"1" "??*\0" "ab\0"
+	"1" "??*\0" "abc\0"
+	"1" "??*\0" "abcd\0"
+	"0" "?*?\0" "a\0"
+	"1" "?*?\0" "ab\0"
+	"1" "?*?\0" "abc\0"
+	"1" "?*?\0" "abcd\0"
+	"1" "*b\0" "b\0"
+	"1" "*b\0" "ab\0"
+	"0" "*b\0" "ba\0"
+	"1" "*b\0" "bb\0"
+	"1" "*b\0" "abb\0"
+	"1" "*b\0" "bab\0"
+	"1" "*bc\0" "abbc\0"
+	"1" "*bc\0" "bc\0"
+	"1" "*bc\0" "bbc\0"
+	"1" "*bc\0" "bcbc\0"
+	/* Multiple asterisks (complex backtracking) */
+	"1" "*ac*\0" "abacadaeafag\0"
+	"1" "*ac*ae*ag*\0" "abacadaeafag\0"
+	"1" "*a*b*[bc]*[ef]*g*\0" "abacadaeafag\0"
+	"0" "*a*b*[ef]*[cd]*g*\0" "abacadaeafag\0"
+	"1" "*abcd*\0" "abcabcabcabcdefg\0"
+	"1" "*ab*cd*\0" "abcabcabcabcdefg\0"
+	"1" "*abcd*abcdef*\0" "abcabcdabcdeabcdefg\0"
+	"0" "*abcd*\0" "abcabcabcabcefg\0"
+	"0" "*ab*cd*\0" "abcabcabcabcefg\0";
+
+bool skip = false;
+
+SEC("syscall")
+int arena_strsearch(void *ctx)
+{
+	unsigned successes = 0;
+	unsigned n = 0;
+	char const __arena *p = glob_tests;
+
+	/*
+	 * Tests are jammed together in a string.  The first byte is '1'
+	 * or '0' to indicate the expected outcome, or '\0' to indicate the
+	 * end of the tests.  Then come two null-terminated strings: the
+	 * pattern and the string to match it against.
+	 */
+	while (*p) {
+		bool expected = *p++ & 1;
+		char const __arena *pat = p;
+
+		cond_break;
+		p += bpf_arena_strlen(p) + 1;
+		successes += test(pat, p, expected);
+		p += bpf_arena_strlen(p) + 1;
+		n++;
+	}
+
+	n -= successes;
+	/* bpf_printk("glob: %u self-tests passed, %u failed\n", successes, n); */
+
+	return n ? -1 : 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/async_stack_depth.c b/tools/testing/selftests/bpf/progs/async_stack_depth.c
new file mode 100644
index 000000000000..36734683acbd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/async_stack_depth.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+struct hmap_elem {
+	struct bpf_timer timer;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 64);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap SEC(".maps");
+
+__attribute__((noinline))
+static int timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+	volatile char buf[256] = {};
+	return buf[69];
+}
+
+__attribute__((noinline))
+static int bad_timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+	volatile char buf[300] = {};
+	return buf[255] + timer_cb(NULL, NULL, NULL);
+}
+
+SEC("tc")
+__failure __msg("combined stack size of 2 calls is")
+int pseudo_call_check(struct __sk_buff *ctx)
+{
+	struct hmap_elem *elem;
+	volatile char buf[256] = {};
+
+	elem = bpf_map_lookup_elem(&hmap, &(int){0});
+	if (!elem)
+		return 0;
+
+	timer_cb(NULL, NULL, NULL);
+	return bpf_timer_set_callback(&elem->timer, timer_cb) + buf[0];
+}
+
+SEC("tc")
+__failure __msg("combined stack size of 2 calls is")
+int async_call_root_check(struct __sk_buff *ctx)
+{
+	struct hmap_elem *elem;
+	volatile char buf[256] = {};
+
+	elem = bpf_map_lookup_elem(&hmap, &(int){0});
+	if (!elem)
+		return 0;
+
+	return bpf_timer_set_callback(&elem->timer, bad_timer_cb) + buf[0];
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/atomic_bounds.c b/tools/testing/selftests/bpf/progs/atomic_bounds.c
new file mode 100644
index 000000000000..e5fff7fc7f8f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/atomic_bounds.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+
+#ifdef ENABLE_ATOMICS_TESTS
+bool skip_tests __attribute((__section__(".data"))) = false;
+#else
+bool skip_tests = true;
+#endif
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(sub, int x)
+{
+#ifdef ENABLE_ATOMICS_TESTS
+	int a = 0;
+	int b = __sync_fetch_and_add(&a, 1);
+	/* b is certainly 0 here. Can the verifier tell? */
+	while (b)
+		continue;
+#endif
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/atomics.c b/tools/testing/selftests/bpf/progs/atomics.c
new file mode 100644
index 000000000000..f89c7f0cc53b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/atomics.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+
+#ifdef ENABLE_ATOMICS_TESTS
+bool skip_tests __attribute((__section__(".data"))) = false;
+#else
+bool skip_tests = true;
+#endif
+
+__u32 pid = 0;
+
+__u64 add64_value = 1;
+__u64 add64_result = 0;
+__u32 add32_value = 1;
+__u32 add32_result = 0;
+__u64 add_stack_value_copy = 0;
+__u64 add_stack_result = 0;
+__u64 add_noreturn_value = 1;
+
+SEC("raw_tp/sys_enter")
+int add(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 add_stack_value = 1;
+
+	add64_result = __sync_fetch_and_add(&add64_value, 2);
+	add32_result = __sync_fetch_and_add(&add32_value, 2);
+	add_stack_result = __sync_fetch_and_add(&add_stack_value, 2);
+	add_stack_value_copy = add_stack_value;
+	__sync_fetch_and_add(&add_noreturn_value, 2);
+#endif
+
+	return 0;
+}
+
+__s64 sub64_value = 1;
+__s64 sub64_result = 0;
+__s32 sub32_value = 1;
+__s32 sub32_result = 0;
+__s64 sub_stack_value_copy = 0;
+__s64 sub_stack_result = 0;
+__s64 sub_noreturn_value = 1;
+
+SEC("raw_tp/sys_enter")
+int sub(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 sub_stack_value = 1;
+
+	sub64_result = __sync_fetch_and_sub(&sub64_value, 2);
+	sub32_result = __sync_fetch_and_sub(&sub32_value, 2);
+	sub_stack_result = __sync_fetch_and_sub(&sub_stack_value, 2);
+	sub_stack_value_copy = sub_stack_value;
+	__sync_fetch_and_sub(&sub_noreturn_value, 2);
+#endif
+
+	return 0;
+}
+
+__u64 and64_value = (0x110ull << 32);
+__u64 and64_result = 0;
+__u32 and32_value = 0x110;
+__u32 and32_result = 0;
+__u64 and_noreturn_value = (0x110ull << 32);
+
+SEC("raw_tp/sys_enter")
+int and(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+
+	and64_result = __sync_fetch_and_and(&and64_value, 0x011ull << 32);
+	and32_result = __sync_fetch_and_and(&and32_value, 0x011);
+	__sync_fetch_and_and(&and_noreturn_value, 0x011ull << 32);
+#endif
+
+	return 0;
+}
+
+__u64 or64_value = (0x110ull << 32);
+__u64 or64_result = 0;
+__u32 or32_value = 0x110;
+__u32 or32_result = 0;
+__u64 or_noreturn_value = (0x110ull << 32);
+
+SEC("raw_tp/sys_enter")
+int or(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	or64_result = __sync_fetch_and_or(&or64_value, 0x011ull << 32);
+	or32_result = __sync_fetch_and_or(&or32_value, 0x011);
+	__sync_fetch_and_or(&or_noreturn_value, 0x011ull << 32);
+#endif
+
+	return 0;
+}
+
+__u64 xor64_value = (0x110ull << 32);
+__u64 xor64_result = 0;
+__u32 xor32_value = 0x110;
+__u32 xor32_result = 0;
+__u64 xor_noreturn_value = (0x110ull << 32);
+
+SEC("raw_tp/sys_enter")
+int xor(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	xor64_result = __sync_fetch_and_xor(&xor64_value, 0x011ull << 32);
+	xor32_result = __sync_fetch_and_xor(&xor32_value, 0x011);
+	__sync_fetch_and_xor(&xor_noreturn_value, 0x011ull << 32);
+#endif
+
+	return 0;
+}
+
+__u64 cmpxchg64_value = 1;
+__u64 cmpxchg64_result_fail = 0;
+__u64 cmpxchg64_result_succeed = 0;
+__u32 cmpxchg32_value = 1;
+__u32 cmpxchg32_result_fail = 0;
+__u32 cmpxchg32_result_succeed = 0;
+
+SEC("raw_tp/sys_enter")
+int cmpxchg(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	cmpxchg64_result_fail = __sync_val_compare_and_swap(&cmpxchg64_value, 0, 3);
+	cmpxchg64_result_succeed = __sync_val_compare_and_swap(&cmpxchg64_value, 1, 2);
+
+	cmpxchg32_result_fail = __sync_val_compare_and_swap(&cmpxchg32_value, 0, 3);
+	cmpxchg32_result_succeed = __sync_val_compare_and_swap(&cmpxchg32_value, 1, 2);
+#endif
+
+	return 0;
+}
+
+__u64 xchg64_value = 1;
+__u64 xchg64_result = 0;
+__u32 xchg32_value = 1;
+__u32 xchg32_result = 0;
+
+SEC("raw_tp/sys_enter")
+int xchg(const void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+#ifdef ENABLE_ATOMICS_TESTS
+	__u64 val64 = 2;
+	__u32 val32 = 2;
+
+	xchg64_result = __sync_lock_test_and_set(&xchg64_value, val64);
+	xchg32_result = __sync_lock_test_and_set(&xchg32_value, val32);
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bad_struct_ops.c b/tools/testing/selftests/bpf/progs/bad_struct_ops.c
new file mode 100644
index 000000000000..b3f77b4561c8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bad_struct_ops.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1) { return 0; }
+
+SEC("struct_ops/test_2")
+int BPF_PROG(test_2) { return 0; }
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_1 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops2 testmod_2 = {
+	.test_1 = (void *)test_1
+};
diff --git a/tools/testing/selftests/bpf/progs/bad_struct_ops2.c b/tools/testing/selftests/bpf/progs/bad_struct_ops2.c
new file mode 100644
index 000000000000..64a95f6be86d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bad_struct_ops2.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* This is an unused struct_ops program, it lacks corresponding
+ * struct_ops map, which provides attachment information.
+ * W/o additional configuration attempt to load such
+ * BPF object file would fail.
+ */
+SEC("struct_ops/foo")
+void foo(void) {}
diff --git a/tools/testing/selftests/bpf/progs/bench_local_storage_create.c b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c
new file mode 100644
index 000000000000..c8ec0d0368e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bench_local_storage_create.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+long create_errs = 0;
+long create_cnts = 0;
+long kmalloc_cnts = 0;
+__u32 bench_pid = 0;
+
+struct storage {
+	__u8 data[64];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct storage);
+} sk_storage_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct storage);
+} task_storage_map SEC(".maps");
+
+SEC("raw_tp/kmalloc")
+int BPF_PROG(kmalloc, unsigned long call_site, const void *ptr,
+	     size_t bytes_req, size_t bytes_alloc, gfp_t gfp_flags,
+	     int node)
+{
+	__sync_fetch_and_add(&kmalloc_cnts, 1);
+
+	return 0;
+}
+
+SEC("tp_btf/sched_process_fork")
+int BPF_PROG(sched_process_fork, struct task_struct *parent, struct task_struct *child)
+{
+	struct storage *stg;
+
+	if (parent->tgid != bench_pid)
+		return 0;
+
+	stg = bpf_task_storage_get(&task_storage_map, child, NULL,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (stg)
+		__sync_fetch_and_add(&create_cnts, 1);
+	else
+		__sync_fetch_and_add(&create_errs, 1);
+
+	return 0;
+}
+
+SEC("lsm.s/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family, int type,
+	     int protocol, int kern)
+{
+	struct sock *sk = sock->sk;
+	struct storage *stg;
+	__u32 pid;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != bench_pid || !sk)
+		return 0;
+
+	stg = bpf_sk_storage_get(&sk_storage_map, sk, NULL,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+
+	if (stg)
+		__sync_fetch_and_add(&create_cnts, 1);
+	else
+		__sync_fetch_and_add(&create_errs, 1);
+
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bench_sockmap_prog.c b/tools/testing/selftests/bpf/progs/bench_sockmap_prog.c
new file mode 100644
index 000000000000..079bf3794b3a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bench_sockmap_prog.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+long process_byte = 0;
+int  verdict_dir = 0;
+int  dropped = 0;
+int  pkt_size = 0;
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_rx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_tx SEC(".maps");
+
+SEC("sk_skb/stream_parser")
+int prog_skb_parser(struct __sk_buff *skb)
+{
+	return pkt_size;
+}
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	int one = 1;
+	int ret =  bpf_sk_redirect_map(skb, &sock_map_rx, one, verdict_dir);
+
+	if (ret == SK_DROP)
+		dropped++;
+	__sync_fetch_and_add(&process_byte, skb->len);
+	return ret;
+}
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_pass(struct __sk_buff *skb)
+{
+	__sync_fetch_and_add(&process_byte, skb->len);
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int prog_skmsg_verdict(struct sk_msg_md *msg)
+{
+	int one = 1;
+
+	__sync_fetch_and_add(&process_byte, msg->size);
+	return bpf_msg_redirect_map(msg, &sock_map_tx, one, verdict_dir);
+}
+
+SEC("sk_msg")
+int prog_skmsg_pass(struct sk_msg_md *msg)
+{
+	__sync_fetch_and_add(&process_byte, msg->size);
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bind4_prog.c b/tools/testing/selftests/bpf/progs/bind4_prog.c
new file mode 100644
index 000000000000..b7ddf8ec4ee8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bind4_prog.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/if.h>
+#include <errno.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bind_prog.h"
+
+#define SERV4_IP		0xc0a801feU /* 192.168.1.254 */
+#define SERV4_PORT		4040
+#define SERV4_REWRITE_IP	0x7f000001U /* 127.0.0.1 */
+#define SERV4_REWRITE_PORT	4444
+
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
+static __inline int bind_to_device(struct bpf_sock_addr *ctx)
+{
+	char veth1[IFNAMSIZ] = "test_sock_addr1";
+	char veth2[IFNAMSIZ] = "test_sock_addr2";
+	char missing[IFNAMSIZ] = "nonexistent_dev";
+	char del_bind[IFNAMSIZ] = "";
+	int veth1_idx, veth2_idx;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &veth1, sizeof(veth1)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth1_idx, sizeof(veth1_idx)) || !veth1_idx)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &veth2, sizeof(veth2)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth2_idx, sizeof(veth2_idx)) || !veth2_idx ||
+	    veth1_idx == veth2_idx)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &missing, sizeof(missing)) != -ENODEV)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth1_idx, sizeof(veth1_idx)))
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &del_bind, sizeof(del_bind)))
+		return 1;
+
+	return 0;
+}
+
+static __inline int bind_reuseport(struct bpf_sock_addr *ctx)
+{
+	int val = 1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)) || !val)
+		return 1;
+	val = 0;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)) || val)
+		return 1;
+
+	return 0;
+}
+
+static __inline int misc_opts(struct bpf_sock_addr *ctx, int opt)
+{
+	int old, tmp, new = 0xeb9f;
+
+	/* Socket in test case has guarantee that old never equals to new. */
+	if (bpf_getsockopt(ctx, SOL_SOCKET, opt, &old, sizeof(old)) ||
+	    old == new)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, opt, &new, sizeof(new)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, opt, &tmp, sizeof(tmp)) ||
+	    tmp != new)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, opt, &old, sizeof(old)))
+		return 1;
+
+	return 0;
+}
+
+SEC("cgroup/bind4")
+int bind_v4_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock *sk;
+	__u32 user_ip4;
+	__u16 user_port;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 0;
+
+	if (sk->family != AF_INET)
+		return 0;
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 0;
+
+	if (ctx->user_ip4 != bpf_htonl(SERV4_IP) ||
+	    ctx->user_port != bpf_htons(SERV4_PORT))
+		return 0;
+
+	// u8 narrow loads:
+	user_ip4 = 0;
+	user_ip4 |= load_byte(ctx->user_ip4, 0, sizeof(user_ip4));
+	user_ip4 |= load_byte(ctx->user_ip4, 1, sizeof(user_ip4));
+	user_ip4 |= load_byte(ctx->user_ip4, 2, sizeof(user_ip4));
+	user_ip4 |= load_byte(ctx->user_ip4, 3, sizeof(user_ip4));
+	if (ctx->user_ip4 != user_ip4)
+		return 0;
+
+	user_port = 0;
+	user_port |= load_byte(ctx->user_port, 0, sizeof(user_port));
+	user_port |= load_byte(ctx->user_port, 1, sizeof(user_port));
+	if (ctx->user_port != user_port)
+		return 0;
+
+	// u16 narrow loads:
+	user_ip4 = 0;
+	user_ip4 |= load_word(ctx->user_ip4, 0, sizeof(user_ip4));
+	user_ip4 |= load_word(ctx->user_ip4, 1, sizeof(user_ip4));
+	if (ctx->user_ip4 != user_ip4)
+		return 0;
+
+	/* Bind to device and unbind it. */
+	if (bind_to_device(ctx))
+		return 0;
+
+	/* Test for misc socket options. */
+	if (misc_opts(ctx, SO_MARK) || misc_opts(ctx, SO_PRIORITY))
+		return 0;
+
+	/* Set reuseport and unset */
+	if (bind_reuseport(ctx))
+		return 0;
+
+	ctx->user_ip4 = bpf_htonl(SERV4_REWRITE_IP);
+	ctx->user_port = bpf_htons(SERV4_REWRITE_PORT);
+
+	return 1;
+}
+
+SEC("cgroup/bind4")
+int bind_v4_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bind6_prog.c b/tools/testing/selftests/bpf/progs/bind6_prog.c
new file mode 100644
index 000000000000..501c3fc11d35
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bind6_prog.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/if.h>
+#include <errno.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bind_prog.h"
+
+#define SERV6_IP_0		0xfaceb00c /* face:b00c:1234:5678::abcd */
+#define SERV6_IP_1		0x12345678
+#define SERV6_IP_2		0x00000000
+#define SERV6_IP_3		0x0000abcd
+#define SERV6_PORT		6060
+#define SERV6_REWRITE_IP_0	0x00000000
+#define SERV6_REWRITE_IP_1	0x00000000
+#define SERV6_REWRITE_IP_2	0x00000000
+#define SERV6_REWRITE_IP_3	0x00000001
+#define SERV6_REWRITE_PORT	6666
+
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
+static __inline int bind_to_device(struct bpf_sock_addr *ctx)
+{
+	char veth1[IFNAMSIZ] = "test_sock_addr1";
+	char veth2[IFNAMSIZ] = "test_sock_addr2";
+	char missing[IFNAMSIZ] = "nonexistent_dev";
+	char del_bind[IFNAMSIZ] = "";
+	int veth1_idx, veth2_idx;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &veth1, sizeof(veth1)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth1_idx, sizeof(veth1_idx)) || !veth1_idx)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &veth2, sizeof(veth2)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth2_idx, sizeof(veth2_idx)) || !veth2_idx ||
+	    veth1_idx == veth2_idx)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &missing, sizeof(missing)) != -ENODEV)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &veth1_idx, sizeof(veth1_idx)))
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   &del_bind, sizeof(del_bind)))
+		return 1;
+
+	return 0;
+}
+
+static __inline int bind_reuseport(struct bpf_sock_addr *ctx)
+{
+	int val = 1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)) || !val)
+		return 1;
+	val = 0;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_REUSEPORT,
+			   &val, sizeof(val)) || val)
+		return 1;
+
+	return 0;
+}
+
+static __inline int misc_opts(struct bpf_sock_addr *ctx, int opt)
+{
+	int old, tmp, new = 0xeb9f;
+
+	/* Socket in test case has guarantee that old never equals to new. */
+	if (bpf_getsockopt(ctx, SOL_SOCKET, opt, &old, sizeof(old)) ||
+	    old == new)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, opt, &new, sizeof(new)))
+		return 1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, opt, &tmp, sizeof(tmp)) ||
+	    tmp != new)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, opt, &old, sizeof(old)))
+		return 1;
+
+	return 0;
+}
+
+SEC("cgroup/bind6")
+int bind_v6_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock *sk;
+	__u32 user_ip6;
+	__u16 user_port;
+	int i;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 0;
+
+	if (sk->family != AF_INET6)
+		return 0;
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 0;
+
+	if (ctx->user_ip6[0] != bpf_htonl(SERV6_IP_0) ||
+	    ctx->user_ip6[1] != bpf_htonl(SERV6_IP_1) ||
+	    ctx->user_ip6[2] != bpf_htonl(SERV6_IP_2) ||
+	    ctx->user_ip6[3] != bpf_htonl(SERV6_IP_3) ||
+	    ctx->user_port != bpf_htons(SERV6_PORT))
+		return 0;
+
+	// u8 narrow loads:
+	for (i = 0; i < 4; i++) {
+		user_ip6 = 0;
+		user_ip6 |= load_byte(ctx->user_ip6[i], 0, sizeof(user_ip6));
+		user_ip6 |= load_byte(ctx->user_ip6[i], 1, sizeof(user_ip6));
+		user_ip6 |= load_byte(ctx->user_ip6[i], 2, sizeof(user_ip6));
+		user_ip6 |= load_byte(ctx->user_ip6[i], 3, sizeof(user_ip6));
+		if (ctx->user_ip6[i] != user_ip6)
+			return 0;
+	}
+
+	user_port = 0;
+	user_port |= load_byte(ctx->user_port, 0, sizeof(user_port));
+	user_port |= load_byte(ctx->user_port, 1, sizeof(user_port));
+	if (ctx->user_port != user_port)
+		return 0;
+
+	// u16 narrow loads:
+	for (i = 0; i < 4; i++) {
+		user_ip6 = 0;
+		user_ip6 |= load_word(ctx->user_ip6[i], 0, sizeof(user_ip6));
+		user_ip6 |= load_word(ctx->user_ip6[i], 1, sizeof(user_ip6));
+		if (ctx->user_ip6[i] != user_ip6)
+			return 0;
+	}
+
+	/* Bind to device and unbind it. */
+	if (bind_to_device(ctx))
+		return 0;
+
+	/* Test for misc socket options. */
+	if (misc_opts(ctx, SO_MARK) || misc_opts(ctx, SO_PRIORITY))
+		return 0;
+
+	/* Set reuseport and unset */
+	if (bind_reuseport(ctx))
+		return 0;
+
+	ctx->user_ip6[0] = bpf_htonl(SERV6_REWRITE_IP_0);
+	ctx->user_ip6[1] = bpf_htonl(SERV6_REWRITE_IP_1);
+	ctx->user_ip6[2] = bpf_htonl(SERV6_REWRITE_IP_2);
+	ctx->user_ip6[3] = bpf_htonl(SERV6_REWRITE_IP_3);
+	ctx->user_port = bpf_htons(SERV6_REWRITE_PORT);
+
+	return 1;
+}
+
+SEC("cgroup/bind6")
+int bind_v6_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bind_perm.c b/tools/testing/selftests/bpf/progs/bind_perm.c
new file mode 100644
index 000000000000..7bd2a027025d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bind_perm.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+static __always_inline int bind_prog(struct bpf_sock_addr *ctx, int family)
+{
+	struct bpf_sock *sk;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 0;
+
+	if (sk->family != family)
+		return 0;
+
+	if (ctx->type != SOCK_STREAM)
+		return 0;
+
+	/* Return 1 OR'ed with the first bit set to indicate
+	 * that CAP_NET_BIND_SERVICE should be bypassed.
+	 */
+	if (ctx->user_port == bpf_htons(111))
+		return (1 | 2);
+
+	return 1;
+}
+
+SEC("cgroup/bind4")
+int bind_v4_prog(struct bpf_sock_addr *ctx)
+{
+	return bind_prog(ctx, AF_INET);
+}
+
+SEC("cgroup/bind6")
+int bind_v6_prog(struct bpf_sock_addr *ctx)
+{
+	return bind_prog(ctx, AF_INET6);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bind_prog.h b/tools/testing/selftests/bpf/progs/bind_prog.h
new file mode 100644
index 000000000000..e830caa940c3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bind_prog.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BIND_PROG_H__
+#define __BIND_PROG_H__
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define load_byte(src, b, s) \
+	(((volatile __u8 *)&(src))[b] << 8 * b)
+#define load_word(src, w, s) \
+	(((volatile __u16 *)&(src))[w] << 16 * w)
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define load_byte(src, b, s) \
+	(((volatile __u8 *)&(src))[(b) + (sizeof(src) - (s))] << 8 * ((s) - (b) - 1))
+#define load_word(src, w, s) \
+	(((volatile __u16 *)&(src))[w] << 16 * (((s) / 2) - (w) - 1))
+#else
+# error "Fix your compiler's __BYTE_ORDER__?!"
+#endif
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bloom_filter_bench.c b/tools/testing/selftests/bpf/progs/bloom_filter_bench.c
new file mode 100644
index 000000000000..7efcbdbe772d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bloom_filter_bench.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct bpf_map;
+
+__u8 rand_vals[2500000];
+const __u32 nr_rand_bytes = 2500000;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, sizeof(__u32));
+	/* max entries and value_size will be set programmatically.
+	 * They are configurable from the userspace bench program.
+	 */
+} array_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_BLOOM_FILTER);
+	/* max entries,  value_size, and # of hash functions will be set
+	 * programmatically. They are configurable from the userspace
+	 * bench program.
+	 */
+	__uint(map_extra, 3);
+} bloom_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	/* max entries, key_size, and value_size, will be set
+	 * programmatically. They are configurable from the userspace
+	 * bench program.
+	 */
+} hashmap SEC(".maps");
+
+struct callback_ctx {
+	struct bpf_map *map;
+	bool update;
+};
+
+/* Tracks the number of hits, drops, and false hits */
+struct {
+	__u32 stats[3];
+} __attribute__((__aligned__(256))) percpu_stats[256];
+
+const __u32 hit_key  = 0;
+const __u32 drop_key  = 1;
+const __u32 false_hit_key = 2;
+
+__u8 value_size;
+
+const volatile bool hashmap_use_bloom;
+const volatile bool count_false_hits;
+
+int error = 0;
+
+static __always_inline void log_result(__u32 key)
+{
+	__u32 cpu = bpf_get_smp_processor_id();
+
+	percpu_stats[cpu & 255].stats[key]++;
+}
+
+static __u64
+bloom_callback(struct bpf_map *map, __u32 *key, void *val,
+	       struct callback_ctx *data)
+{
+	int err;
+
+	if (data->update)
+		err = bpf_map_push_elem(data->map, val, 0);
+	else
+		err = bpf_map_peek_elem(data->map, val);
+
+	if (err) {
+		error |= 1;
+		return 1; /* stop the iteration */
+	}
+
+	log_result(hit_key);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int bloom_lookup(void *ctx)
+{
+	struct callback_ctx data;
+
+	data.map = (struct bpf_map *)&bloom_map;
+	data.update = false;
+
+	bpf_for_each_map_elem(&array_map, bloom_callback, &data, 0);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int bloom_update(void *ctx)
+{
+	struct callback_ctx data;
+
+	data.map = (struct bpf_map *)&bloom_map;
+	data.update = true;
+
+	bpf_for_each_map_elem(&array_map, bloom_callback, &data, 0);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int bloom_hashmap_lookup(void *ctx)
+{
+	__u64 *result;
+	int i, err;
+
+	__u32 index = bpf_get_prandom_u32();
+	__u32 bitmask = (1ULL << 21) - 1;
+
+	for (i = 0; i < 1024; i++, index += value_size) {
+		index = index & bitmask;
+
+		if (hashmap_use_bloom) {
+			err = bpf_map_peek_elem(&bloom_map,
+						rand_vals + index);
+			if (err) {
+				if (err != -ENOENT) {
+					error |= 2;
+					return 0;
+				}
+				log_result(hit_key);
+				continue;
+			}
+		}
+
+		result = bpf_map_lookup_elem(&hashmap,
+					     rand_vals + index);
+		if (result) {
+			log_result(hit_key);
+		} else {
+			if (hashmap_use_bloom && count_false_hits)
+				log_result(false_hit_key);
+			log_result(drop_key);
+		}
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bloom_filter_map.c b/tools/testing/selftests/bpf/progs/bloom_filter_map.c
new file mode 100644
index 000000000000..f245fcfe0c61
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bloom_filter_map.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct bpf_map;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1000);
+} map_random_data SEC(".maps");
+
+struct map_bloom_type {
+	__uint(type, BPF_MAP_TYPE_BLOOM_FILTER);
+	__type(value, __u32);
+	__uint(max_entries, 10000);
+	__uint(map_extra, 5);
+} map_bloom SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+	__array(values, struct map_bloom_type);
+} outer_map SEC(".maps");
+
+struct callback_ctx {
+	struct bpf_map *map;
+};
+
+int error = 0;
+
+static __u64
+check_elem(struct bpf_map *map, __u32 *key, __u32 *val,
+	   struct callback_ctx *data)
+{
+	int err;
+
+	err = bpf_map_peek_elem(data->map, val);
+	if (err) {
+		error |= 1;
+		return 1; /* stop the iteration */
+	}
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int inner_map(void *ctx)
+{
+	struct bpf_map *inner_map;
+	struct callback_ctx data;
+	int key = 0;
+
+	inner_map = bpf_map_lookup_elem(&outer_map, &key);
+	if (!inner_map) {
+		error |= 2;
+		return 0;
+	}
+
+	data.map = inner_map;
+	bpf_for_each_map_elem(&map_random_data, check_elem, &data, 0);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int check_bloom(void *ctx)
+{
+	struct callback_ctx data;
+
+	data.map = (struct bpf_map *)&map_bloom;
+	bpf_for_each_map_elem(&map_random_data, check_elem, &data, 0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_arena_spin_lock.h b/tools/testing/selftests/bpf/progs/bpf_arena_spin_lock.h
new file mode 100644
index 000000000000..f90531cf3ee5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_arena_spin_lock.h
@@ -0,0 +1,542 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#ifndef BPF_ARENA_SPIN_LOCK_H
+#define BPF_ARENA_SPIN_LOCK_H
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_atomic.h"
+
+#define arch_mcs_spin_lock_contended_label(l, label) smp_cond_load_acquire_label(l, VAL, label)
+#define arch_mcs_spin_unlock_contended(l) smp_store_release((l), 1)
+
+#if defined(ENABLE_ATOMICS_TESTS) && defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+
+#define EBUSY 16
+#define EOPNOTSUPP 95
+#define ETIMEDOUT 110
+
+#ifndef __arena
+#define __arena __attribute__((address_space(1)))
+#endif
+
+extern unsigned long CONFIG_NR_CPUS __kconfig;
+
+/*
+ * Typically, we'd just rely on the definition in vmlinux.h for qspinlock, but
+ * PowerPC overrides the definition to define lock->val as u32 instead of
+ * atomic_t, leading to compilation errors.  Import a local definition below so
+ * that we don't depend on the vmlinux.h version.
+ */
+
+struct __qspinlock {
+	union {
+		atomic_t val;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+		struct {
+			u8 locked;
+			u8 pending;
+		};
+		struct {
+			u16 locked_pending;
+			u16 tail;
+		};
+#else
+		struct {
+			u16 tail;
+			u16 locked_pending;
+		};
+		struct {
+			u8 reserved[2];
+			u8 pending;
+			u8 locked;
+		};
+#endif
+	};
+};
+
+#define arena_spinlock_t struct __qspinlock
+/* FIXME: Using typedef causes CO-RE relocation error */
+/* typedef struct qspinlock arena_spinlock_t; */
+
+struct arena_mcs_spinlock {
+	struct arena_mcs_spinlock __arena *next;
+	int locked;
+	int count;
+};
+
+struct arena_qnode {
+	struct arena_mcs_spinlock mcs;
+};
+
+#define _Q_MAX_NODES		4
+#define _Q_PENDING_LOOPS	1
+
+/*
+ * Bitfields in the atomic value:
+ *
+ *  0- 7: locked byte
+ *     8: pending
+ *  9-15: not used
+ * 16-17: tail index
+ * 18-31: tail cpu (+1)
+ */
+#define _Q_MAX_CPUS		1024
+
+#define	_Q_SET_MASK(type)	(((1U << _Q_ ## type ## _BITS) - 1)\
+				      << _Q_ ## type ## _OFFSET)
+#define _Q_LOCKED_OFFSET	0
+#define _Q_LOCKED_BITS		8
+#define _Q_LOCKED_MASK		_Q_SET_MASK(LOCKED)
+
+#define _Q_PENDING_OFFSET	(_Q_LOCKED_OFFSET + _Q_LOCKED_BITS)
+#define _Q_PENDING_BITS		8
+#define _Q_PENDING_MASK		_Q_SET_MASK(PENDING)
+
+#define _Q_TAIL_IDX_OFFSET	(_Q_PENDING_OFFSET + _Q_PENDING_BITS)
+#define _Q_TAIL_IDX_BITS	2
+#define _Q_TAIL_IDX_MASK	_Q_SET_MASK(TAIL_IDX)
+
+#define _Q_TAIL_CPU_OFFSET	(_Q_TAIL_IDX_OFFSET + _Q_TAIL_IDX_BITS)
+#define _Q_TAIL_CPU_BITS	(32 - _Q_TAIL_CPU_OFFSET)
+#define _Q_TAIL_CPU_MASK	_Q_SET_MASK(TAIL_CPU)
+
+#define _Q_TAIL_OFFSET		_Q_TAIL_IDX_OFFSET
+#define _Q_TAIL_MASK		(_Q_TAIL_IDX_MASK | _Q_TAIL_CPU_MASK)
+
+#define _Q_LOCKED_VAL		(1U << _Q_LOCKED_OFFSET)
+#define _Q_PENDING_VAL		(1U << _Q_PENDING_OFFSET)
+
+struct arena_qnode __arena qnodes[_Q_MAX_CPUS][_Q_MAX_NODES];
+
+static inline u32 encode_tail(int cpu, int idx)
+{
+	u32 tail;
+
+	tail  = (cpu + 1) << _Q_TAIL_CPU_OFFSET;
+	tail |= idx << _Q_TAIL_IDX_OFFSET; /* assume < 4 */
+
+	return tail;
+}
+
+static inline struct arena_mcs_spinlock __arena *decode_tail(u32 tail)
+{
+	u32 cpu = (tail >> _Q_TAIL_CPU_OFFSET) - 1;
+	u32 idx = (tail &  _Q_TAIL_IDX_MASK) >> _Q_TAIL_IDX_OFFSET;
+
+	return &qnodes[cpu][idx].mcs;
+}
+
+static inline
+struct arena_mcs_spinlock __arena *grab_mcs_node(struct arena_mcs_spinlock __arena *base, int idx)
+{
+	return &((struct arena_qnode __arena *)base + idx)->mcs;
+}
+
+#define _Q_LOCKED_PENDING_MASK (_Q_LOCKED_MASK | _Q_PENDING_MASK)
+
+/**
+ * xchg_tail - Put in the new queue tail code word & retrieve previous one
+ * @lock : Pointer to queued spinlock structure
+ * @tail : The new queue tail code word
+ * Return: The previous queue tail code word
+ *
+ * xchg(lock, tail)
+ *
+ * p,*,* -> n,*,* ; prev = xchg(lock, node)
+ */
+static __always_inline u32 xchg_tail(arena_spinlock_t __arena *lock, u32 tail)
+{
+	u32 old, new;
+
+	old = atomic_read(&lock->val);
+	do {
+		new = (old & _Q_LOCKED_PENDING_MASK) | tail;
+		/*
+		 * We can use relaxed semantics since the caller ensures that
+		 * the MCS node is properly initialized before updating the
+		 * tail.
+		 */
+		/* These loops are not expected to stall, but we still need to
+		 * prove to the verifier they will terminate eventually.
+		 */
+		cond_break_label(out);
+	} while (!atomic_try_cmpxchg_relaxed(&lock->val, &old, new));
+
+	return old;
+out:
+	bpf_printk("RUNTIME ERROR: %s unexpected cond_break exit!!!", __func__);
+	return old;
+}
+
+/**
+ * clear_pending - clear the pending bit.
+ * @lock: Pointer to queued spinlock structure
+ *
+ * *,1,* -> *,0,*
+ */
+static __always_inline void clear_pending(arena_spinlock_t __arena *lock)
+{
+	WRITE_ONCE(lock->pending, 0);
+}
+
+/**
+ * clear_pending_set_locked - take ownership and clear the pending bit.
+ * @lock: Pointer to queued spinlock structure
+ *
+ * *,1,0 -> *,0,1
+ *
+ * Lock stealing is not allowed if this function is used.
+ */
+static __always_inline void clear_pending_set_locked(arena_spinlock_t __arena *lock)
+{
+	WRITE_ONCE(lock->locked_pending, _Q_LOCKED_VAL);
+}
+
+/**
+ * set_locked - Set the lock bit and own the lock
+ * @lock: Pointer to queued spinlock structure
+ *
+ * *,*,0 -> *,0,1
+ */
+static __always_inline void set_locked(arena_spinlock_t __arena *lock)
+{
+	WRITE_ONCE(lock->locked, _Q_LOCKED_VAL);
+}
+
+static __always_inline
+u32 arena_fetch_set_pending_acquire(arena_spinlock_t __arena *lock)
+{
+	u32 old, new;
+
+	old = atomic_read(&lock->val);
+	do {
+		new = old | _Q_PENDING_VAL;
+		/*
+		 * These loops are not expected to stall, but we still need to
+		 * prove to the verifier they will terminate eventually.
+		 */
+		cond_break_label(out);
+	} while (!atomic_try_cmpxchg_acquire(&lock->val, &old, new));
+
+	return old;
+out:
+	bpf_printk("RUNTIME ERROR: %s unexpected cond_break exit!!!", __func__);
+	return old;
+}
+
+/**
+ * arena_spin_trylock - try to acquire the queued spinlock
+ * @lock : Pointer to queued spinlock structure
+ * Return: 1 if lock acquired, 0 if failed
+ */
+static __always_inline int arena_spin_trylock(arena_spinlock_t __arena *lock)
+{
+	int val = atomic_read(&lock->val);
+
+	if (unlikely(val))
+		return 0;
+
+	return likely(atomic_try_cmpxchg_acquire(&lock->val, &val, _Q_LOCKED_VAL));
+}
+
+__noinline
+int arena_spin_lock_slowpath(arena_spinlock_t __arena __arg_arena *lock, u32 val)
+{
+	struct arena_mcs_spinlock __arena *prev, *next, *node0, *node;
+	int ret = -ETIMEDOUT;
+	u32 old, tail;
+	int idx;
+
+	/*
+	 * Wait for in-progress pending->locked hand-overs with a bounded
+	 * number of spins so that we guarantee forward progress.
+	 *
+	 * 0,1,0 -> 0,0,1
+	 */
+	if (val == _Q_PENDING_VAL) {
+		int cnt = _Q_PENDING_LOOPS;
+		val = atomic_cond_read_relaxed_label(&lock->val,
+						     (VAL != _Q_PENDING_VAL) || !cnt--,
+						     release_err);
+	}
+
+	/*
+	 * If we observe any contention; queue.
+	 */
+	if (val & ~_Q_LOCKED_MASK)
+		goto queue;
+
+	/*
+	 * trylock || pending
+	 *
+	 * 0,0,* -> 0,1,* -> 0,0,1 pending, trylock
+	 */
+	val = arena_fetch_set_pending_acquire(lock);
+
+	/*
+	 * If we observe contention, there is a concurrent locker.
+	 *
+	 * Undo and queue; our setting of PENDING might have made the
+	 * n,0,0 -> 0,0,0 transition fail and it will now be waiting
+	 * on @next to become !NULL.
+	 */
+	if (unlikely(val & ~_Q_LOCKED_MASK)) {
+
+		/* Undo PENDING if we set it. */
+		if (!(val & _Q_PENDING_MASK))
+			clear_pending(lock);
+
+		goto queue;
+	}
+
+	/*
+	 * We're pending, wait for the owner to go away.
+	 *
+	 * 0,1,1 -> *,1,0
+	 *
+	 * this wait loop must be a load-acquire such that we match the
+	 * store-release that clears the locked bit and create lock
+	 * sequentiality; this is because not all
+	 * clear_pending_set_locked() implementations imply full
+	 * barriers.
+	 */
+	if (val & _Q_LOCKED_MASK)
+		(void)smp_cond_load_acquire_label(&lock->locked, !VAL, release_err);
+
+	/*
+	 * take ownership and clear the pending bit.
+	 *
+	 * 0,1,0 -> 0,0,1
+	 */
+	clear_pending_set_locked(lock);
+	return 0;
+
+	/*
+	 * End of pending bit optimistic spinning and beginning of MCS
+	 * queuing.
+	 */
+queue:
+	node0 = &(qnodes[bpf_get_smp_processor_id()])[0].mcs;
+	idx = node0->count++;
+	tail = encode_tail(bpf_get_smp_processor_id(), idx);
+
+	/*
+	 * 4 nodes are allocated based on the assumption that there will not be
+	 * nested NMIs taking spinlocks. That may not be true in some
+	 * architectures even though the chance of needing more than 4 nodes
+	 * will still be extremely unlikely. When that happens, we simply return
+	 * an error. Original qspinlock has a trylock fallback in this case.
+	 */
+	if (unlikely(idx >= _Q_MAX_NODES)) {
+		ret = -EBUSY;
+		goto release_node_err;
+	}
+
+	node = grab_mcs_node(node0, idx);
+
+	/*
+	 * Ensure that we increment the head node->count before initialising
+	 * the actual node. If the compiler is kind enough to reorder these
+	 * stores, then an IRQ could overwrite our assignments.
+	 */
+	barrier();
+
+	node->locked = 0;
+	node->next = NULL;
+
+	/*
+	 * We touched a (possibly) cold cacheline in the per-cpu queue node;
+	 * attempt the trylock once more in the hope someone let go while we
+	 * weren't watching.
+	 */
+	if (arena_spin_trylock(lock))
+		goto release;
+
+	/*
+	 * Ensure that the initialisation of @node is complete before we
+	 * publish the updated tail via xchg_tail() and potentially link
+	 * @node into the waitqueue via WRITE_ONCE(prev->next, node) below.
+	 */
+	smp_wmb();
+
+	/*
+	 * Publish the updated tail.
+	 * We have already touched the queueing cacheline; don't bother with
+	 * pending stuff.
+	 *
+	 * p,*,* -> n,*,*
+	 */
+	old = xchg_tail(lock, tail);
+	next = NULL;
+
+	/*
+	 * if there was a previous node; link it and wait until reaching the
+	 * head of the waitqueue.
+	 */
+	if (old & _Q_TAIL_MASK) {
+		prev = decode_tail(old);
+
+		/* Link @node into the waitqueue. */
+		WRITE_ONCE(prev->next, node);
+
+		(void)arch_mcs_spin_lock_contended_label(&node->locked, release_node_err);
+
+		/*
+		 * While waiting for the MCS lock, the next pointer may have
+		 * been set by another lock waiter. We cannot prefetch here
+		 * due to lack of equivalent instruction in BPF ISA.
+		 */
+		next = READ_ONCE(node->next);
+	}
+
+	/*
+	 * we're at the head of the waitqueue, wait for the owner & pending to
+	 * go away.
+	 *
+	 * *,x,y -> *,0,0
+	 *
+	 * this wait loop must use a load-acquire such that we match the
+	 * store-release that clears the locked bit and create lock
+	 * sequentiality; this is because the set_locked() function below
+	 * does not imply a full barrier.
+	 */
+	val = atomic_cond_read_acquire_label(&lock->val, !(VAL & _Q_LOCKED_PENDING_MASK),
+					     release_node_err);
+
+	/*
+	 * claim the lock:
+	 *
+	 * n,0,0 -> 0,0,1 : lock, uncontended
+	 * *,*,0 -> *,*,1 : lock, contended
+	 *
+	 * If the queue head is the only one in the queue (lock value == tail)
+	 * and nobody is pending, clear the tail code and grab the lock.
+	 * Otherwise, we only need to grab the lock.
+	 */
+
+	/*
+	 * In the PV case we might already have _Q_LOCKED_VAL set, because
+	 * of lock stealing; therefore we must also allow:
+	 *
+	 * n,0,1 -> 0,0,1
+	 *
+	 * Note: at this point: (val & _Q_PENDING_MASK) == 0, because of the
+	 *       above wait condition, therefore any concurrent setting of
+	 *       PENDING will make the uncontended transition fail.
+	 */
+	if ((val & _Q_TAIL_MASK) == tail) {
+		if (atomic_try_cmpxchg_relaxed(&lock->val, &val, _Q_LOCKED_VAL))
+			goto release; /* No contention */
+	}
+
+	/*
+	 * Either somebody is queued behind us or _Q_PENDING_VAL got set
+	 * which will then detect the remaining tail and queue behind us
+	 * ensuring we'll see a @next.
+	 */
+	set_locked(lock);
+
+	/*
+	 * contended path; wait for next if not observed yet, release.
+	 */
+	if (!next)
+		next = smp_cond_load_relaxed_label(&node->next, (VAL), release_node_err);
+
+	arch_mcs_spin_unlock_contended(&next->locked);
+
+release:;
+	/*
+	 * release the node
+	 *
+	 * Doing a normal dec vs this_cpu_dec is fine. An upper context always
+	 * decrements count it incremented before returning, thus we're fine.
+	 * For contexts interrupting us, they either observe our dec or not.
+	 * Just ensure the compiler doesn't reorder this statement, as a
+	 * this_cpu_dec implicitly implied that.
+	 */
+	barrier();
+	node0->count--;
+	return 0;
+release_node_err:
+	barrier();
+	node0->count--;
+	goto release_err;
+release_err:
+	return ret;
+}
+
+/**
+ * arena_spin_lock - acquire a queued spinlock
+ * @lock: Pointer to queued spinlock structure
+ *
+ * On error, returned value will be negative.
+ * On success, zero is returned.
+ *
+ * The return value _must_ be tested against zero for success,
+ * instead of checking it against negative, for passing the
+ * BPF verifier.
+ *
+ * The user should do:
+ *	if (arena_spin_lock(...) != 0) // failure
+ *		or
+ *	if (arena_spin_lock(...) == 0) // success
+ *		or
+ *	if (arena_spin_lock(...)) // failure
+ *		or
+ *	if (!arena_spin_lock(...)) // success
+ * instead of:
+ *	if (arena_spin_lock(...) < 0) // failure
+ *
+ * The return value can still be inspected later.
+ */
+static __always_inline int arena_spin_lock(arena_spinlock_t __arena *lock)
+{
+	int val = 0;
+
+	if (CONFIG_NR_CPUS > 1024)
+		return -EOPNOTSUPP;
+
+	bpf_preempt_disable();
+	if (likely(atomic_try_cmpxchg_acquire(&lock->val, &val, _Q_LOCKED_VAL)))
+		return 0;
+
+	val = arena_spin_lock_slowpath(lock, val);
+	/* FIXME: bpf_assert_range(-MAX_ERRNO, 0) once we have it working for all cases. */
+	if (val)
+		bpf_preempt_enable();
+	return val;
+}
+
+/**
+ * arena_spin_unlock - release a queued spinlock
+ * @lock : Pointer to queued spinlock structure
+ */
+static __always_inline void arena_spin_unlock(arena_spinlock_t __arena *lock)
+{
+	/*
+	 * unlock() needs release semantics:
+	 */
+	smp_store_release(&lock->locked, 0);
+	bpf_preempt_enable();
+}
+
+#define arena_spin_lock_irqsave(lock, flags)             \
+	({                                               \
+		int __ret;                               \
+		bpf_local_irq_save(&(flags));            \
+		__ret = arena_spin_lock((lock));         \
+		if (__ret)                               \
+			bpf_local_irq_restore(&(flags)); \
+		(__ret);                                 \
+	})
+
+#define arena_spin_unlock_irqrestore(lock, flags) \
+	({                                        \
+		arena_spin_unlock((lock));        \
+		bpf_local_irq_restore(&(flags));  \
+	})
+
+#endif
+
+#endif /* BPF_ARENA_SPIN_LOCK_H */
diff --git a/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c
new file mode 100644
index 000000000000..9af19dfe4e80
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_cc_cubic.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/* Highlights:
+ * 1. The major difference between this bpf program and tcp_cubic.c
+ *    is that this bpf program relies on `cong_control` rather than
+ *    `cong_avoid` in the struct tcp_congestion_ops.
+ * 2. Logic such as tcp_cwnd_reduction, tcp_cong_avoid, and
+ *    tcp_update_pacing_rate is bypassed when `cong_control` is
+ *    defined, so moving these logic to `cong_control`.
+ * 3. WARNING: This bpf program is NOT the same as tcp_cubic.c.
+ *    The main purpose is to show use cases of the arguments in
+ *    `cong_control`. For simplicity's sake, it reuses tcp cubic's
+ *    kernel functions.
+ */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define USEC_PER_SEC 1000000UL
+#define TCP_PACING_SS_RATIO (200)
+#define TCP_PACING_CA_RATIO (120)
+#define TCP_REORDERING (12)
+
+extern void cubictcp_init(struct sock *sk) __ksym;
+extern void cubictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym;
+extern __u32 cubictcp_recalc_ssthresh(struct sock *sk) __ksym;
+extern void cubictcp_state(struct sock *sk, __u8 new_state) __ksym;
+extern __u32 tcp_reno_undo_cwnd(struct sock *sk) __ksym;
+extern void cubictcp_acked(struct sock *sk, const struct ack_sample *sample) __ksym;
+extern void cubictcp_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym;
+
+static __u64 div64_u64(__u64 dividend, __u64 divisor)
+{
+	return dividend / divisor;
+}
+
+static void tcp_update_pacing_rate(struct sock *sk)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	__u64 rate;
+
+	/* set sk_pacing_rate to 200 % of current rate (mss * cwnd / srtt) */
+	rate = (__u64)tp->mss_cache * ((USEC_PER_SEC / 100) << 3);
+
+	/* current rate is (cwnd * mss) / srtt
+	 * In Slow Start [1], set sk_pacing_rate to 200 % the current rate.
+	 * In Congestion Avoidance phase, set it to 120 % the current rate.
+	 *
+	 * [1] : Normal Slow Start condition is (tp->snd_cwnd < tp->snd_ssthresh)
+	 *	 If snd_cwnd >= (tp->snd_ssthresh / 2), we are approaching
+	 *	 end of slow start and should slow down.
+	 */
+	if (tp->snd_cwnd < tp->snd_ssthresh / 2)
+		rate *= TCP_PACING_SS_RATIO;
+	else
+		rate *= TCP_PACING_CA_RATIO;
+
+	rate *= max(tp->snd_cwnd, tp->packets_out);
+
+	if (tp->srtt_us)
+		rate = div64_u64(rate, (__u64)tp->srtt_us);
+
+	sk->sk_pacing_rate = min(rate, sk->sk_max_pacing_rate);
+}
+
+static void tcp_cwnd_reduction(struct sock *sk, int newly_acked_sacked,
+			       int newly_lost, int flag)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	int sndcnt = 0;
+	__u32 pkts_in_flight = tp->packets_out - (tp->sacked_out + tp->lost_out) + tp->retrans_out;
+	int delta = tp->snd_ssthresh - pkts_in_flight;
+
+	if (newly_acked_sacked <= 0 || !tp->prior_cwnd)
+		return;
+
+	__u32 prr_delivered = tp->prr_delivered + newly_acked_sacked;
+
+	if (delta < 0) {
+		__u64 dividend =
+			(__u64)tp->snd_ssthresh * prr_delivered + tp->prior_cwnd - 1;
+		sndcnt = (__u32)div64_u64(dividend, (__u64)tp->prior_cwnd) - tp->prr_out;
+	} else {
+		sndcnt = max(prr_delivered - tp->prr_out, newly_acked_sacked);
+		if (flag & FLAG_SND_UNA_ADVANCED && !newly_lost)
+			sndcnt++;
+		sndcnt = min(delta, sndcnt);
+	}
+	/* Force a fast retransmit upon entering fast recovery */
+	sndcnt = max(sndcnt, (tp->prr_out ? 0 : 1));
+	tp->snd_cwnd = pkts_in_flight + sndcnt;
+}
+
+/* Decide whether to run the increase function of congestion control. */
+static bool tcp_may_raise_cwnd(const struct sock *sk, const int flag)
+{
+	if (tcp_sk(sk)->reordering > TCP_REORDERING)
+		return flag & FLAG_FORWARD_PROGRESS;
+
+	return flag & FLAG_DATA_ACKED;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_init, struct sock *sk)
+{
+	cubictcp_init(sk);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event)
+{
+	cubictcp_cwnd_event(sk, event);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_cong_control, struct sock *sk, __u32 ack, int flag,
+	      const struct rate_sample *rs)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	if (((1<<TCP_CA_CWR) | (1<<TCP_CA_Recovery)) &
+			(1 << inet_csk(sk)->icsk_ca_state)) {
+		/* Reduce cwnd if state mandates */
+		tcp_cwnd_reduction(sk, rs->acked_sacked, rs->losses, flag);
+
+		if (!before(tp->snd_una, tp->high_seq)) {
+			/* Reset cwnd to ssthresh in CWR or Recovery (unless it's undone) */
+			if (tp->snd_ssthresh < TCP_INFINITE_SSTHRESH &&
+					inet_csk(sk)->icsk_ca_state == TCP_CA_CWR) {
+				tp->snd_cwnd = tp->snd_ssthresh;
+				tp->snd_cwnd_stamp = tcp_jiffies32;
+			}
+		}
+	} else if (tcp_may_raise_cwnd(sk, flag)) {
+		/* Advance cwnd if state allows */
+		cubictcp_cong_avoid(sk, ack, rs->acked_sacked);
+		tp->snd_cwnd_stamp = tcp_jiffies32;
+	}
+
+	tcp_update_pacing_rate(sk);
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_cubic_recalc_ssthresh, struct sock *sk)
+{
+	return cubictcp_recalc_ssthresh(sk);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_state, struct sock *sk, __u8 new_state)
+{
+	cubictcp_state(sk, new_state);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_acked, struct sock *sk, const struct ack_sample *sample)
+{
+	cubictcp_acked(sk, sample);
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_cubic_undo_cwnd, struct sock *sk)
+{
+	return tcp_reno_undo_cwnd(sk);
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops cc_cubic = {
+	.init		= (void *)bpf_cubic_init,
+	.ssthresh	= (void *)bpf_cubic_recalc_ssthresh,
+	.cong_control	= (void *)bpf_cubic_cong_control,
+	.set_state	= (void *)bpf_cubic_state,
+	.undo_cwnd	= (void *)bpf_cubic_undo_cwnd,
+	.cwnd_event	= (void *)bpf_cubic_cwnd_event,
+	.pkts_acked     = (void *)bpf_cubic_acked,
+	.name		= "bpf_cc_cubic",
+};
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_compiler.h b/tools/testing/selftests/bpf/progs/bpf_compiler.h
new file mode 100644
index 000000000000..a7c343dc82e6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_compiler.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BPF_COMPILER_H__
+#define __BPF_COMPILER_H__
+
+#define DO_PRAGMA_(X) _Pragma(#X)
+
+#if __clang__
+#define __pragma_loop_unroll DO_PRAGMA_(clang loop unroll(enable))
+#else
+/* In GCC -funroll-loops, which is enabled with -O2, should have the
+   same impact than the loop-unroll-enable pragma above.  */
+#define __pragma_loop_unroll
+#endif
+
+#if __clang__
+#define __pragma_loop_unroll_count(N) DO_PRAGMA_(clang loop unroll_count(N))
+#else
+#define __pragma_loop_unroll_count(N) DO_PRAGMA_(GCC unroll N)
+#endif
+
+#if __clang__
+#define __pragma_loop_unroll_full DO_PRAGMA_(clang loop unroll(full))
+#else
+#define __pragma_loop_unroll_full DO_PRAGMA_(GCC unroll 65534)
+#endif
+
+#if __clang__
+#define __pragma_loop_no_unroll DO_PRAGMA_(clang loop unroll(disable))
+#else
+#define __pragma_loop_no_unroll DO_PRAGMA_(GCC unroll 1)
+#endif
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bpf_cubic.c b/tools/testing/selftests/bpf/progs/bpf_cubic.c
new file mode 100644
index 000000000000..46fb2b37d3a7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_cubic.c
@@ -0,0 +1,543 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/* WARNING: This implementation is not necessarily the same
+ * as the tcp_cubic.c.  The purpose is mainly for testing
+ * the kernel BPF logic.
+ *
+ * Highlights:
+ * 1. CONFIG_HZ .kconfig map is used.
+ * 2. In bictcp_update(), calculation is changed to use usec
+ *    resolution (i.e. USEC_PER_JIFFY) instead of using jiffies.
+ *    Thus, usecs_to_jiffies() is not used in the bpf_cubic.c.
+ * 3. In bitctcp_update() [under tcp_friendliness], the original
+ *    "while (ca->ack_cnt > delta)" loop is changed to the equivalent
+ *    "ca->ack_cnt / delta" operation.
+ */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
+
+extern __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) __ksym;
+extern void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) __ksym;
+
+#define BICTCP_BETA_SCALE    1024	/* Scale factor beta calculation
+					 * max_cwnd = snd_cwnd * beta
+					 */
+#define	BICTCP_HZ		10	/* BIC HZ 2^10 = 1024 */
+
+/* Two methods of hybrid slow start */
+#define HYSTART_ACK_TRAIN	0x1
+#define HYSTART_DELAY		0x2
+
+/* Number of delay samples for detecting the increase of delay */
+#define HYSTART_MIN_SAMPLES	8
+#define HYSTART_DELAY_MIN	(4000U)	/* 4ms */
+#define HYSTART_DELAY_MAX	(16000U)	/* 16 ms */
+#define HYSTART_DELAY_THRESH(x)	clamp(x, HYSTART_DELAY_MIN, HYSTART_DELAY_MAX)
+
+static int fast_convergence = 1;
+static const int beta = 717;	/* = 717/1024 (BICTCP_BETA_SCALE) */
+static int initial_ssthresh;
+static const int bic_scale = 41;
+static int tcp_friendliness = 1;
+
+static int hystart = 1;
+static int hystart_detect = HYSTART_ACK_TRAIN | HYSTART_DELAY;
+static int hystart_low_window = 16;
+static int hystart_ack_delta_us = 2000;
+
+static const __u32 cube_rtt_scale = (bic_scale * 10);	/* 1024*c/rtt */
+static const __u32 beta_scale = 8*(BICTCP_BETA_SCALE+beta) / 3
+				/ (BICTCP_BETA_SCALE - beta);
+/* calculate the "K" for (wmax-cwnd) = c/rtt * K^3
+ *  so K = cubic_root( (wmax-cwnd)*rtt/c )
+ * the unit of K is bictcp_HZ=2^10, not HZ
+ *
+ *  c = bic_scale >> 10
+ *  rtt = 100ms
+ *
+ * the following code has been designed and tested for
+ * cwnd < 1 million packets
+ * RTT < 100 seconds
+ * HZ < 1,000,00  (corresponding to 10 nano-second)
+ */
+
+/* 1/c * 2^2*bictcp_HZ * srtt, 2^40 */
+static const __u64 cube_factor = (__u64)(1ull << (10+3*BICTCP_HZ))
+				/ (bic_scale * 10);
+
+/* BIC TCP Parameters */
+struct bpf_bictcp {
+	__u32	cnt;		/* increase cwnd by 1 after ACKs */
+	__u32	last_max_cwnd;	/* last maximum snd_cwnd */
+	__u32	last_cwnd;	/* the last snd_cwnd */
+	__u32	last_time;	/* time when updated last_cwnd */
+	__u32	bic_origin_point;/* origin point of bic function */
+	__u32	bic_K;		/* time to origin point
+				   from the beginning of the current epoch */
+	__u32	delay_min;	/* min delay (usec) */
+	__u32	epoch_start;	/* beginning of an epoch */
+	__u32	ack_cnt;	/* number of acks */
+	__u32	tcp_cwnd;	/* estimated tcp cwnd */
+	__u16	unused;
+	__u8	sample_cnt;	/* number of samples to decide curr_rtt */
+	__u8	found;		/* the exit point is found? */
+	__u32	round_start;	/* beginning of each round */
+	__u32	end_seq;	/* end_seq of the round */
+	__u32	last_ack;	/* last time when the ACK spacing is close */
+	__u32	curr_rtt;	/* the minimum rtt of current round */
+};
+
+static void bictcp_reset(struct bpf_bictcp *ca)
+{
+	ca->cnt = 0;
+	ca->last_max_cwnd = 0;
+	ca->last_cwnd = 0;
+	ca->last_time = 0;
+	ca->bic_origin_point = 0;
+	ca->bic_K = 0;
+	ca->delay_min = 0;
+	ca->epoch_start = 0;
+	ca->ack_cnt = 0;
+	ca->tcp_cwnd = 0;
+	ca->found = 0;
+}
+
+extern unsigned long CONFIG_HZ __kconfig;
+#define HZ CONFIG_HZ
+#define USEC_PER_MSEC	1000UL
+#define USEC_PER_SEC	1000000UL
+#define USEC_PER_JIFFY	(USEC_PER_SEC / HZ)
+
+static __u64 div64_u64(__u64 dividend, __u64 divisor)
+{
+	return dividend / divisor;
+}
+
+#define div64_ul div64_u64
+
+#define BITS_PER_U64 (sizeof(__u64) * 8)
+static int fls64(__u64 x)
+{
+	int num = BITS_PER_U64 - 1;
+
+	if (x == 0)
+		return 0;
+
+	if (!(x & (~0ull << (BITS_PER_U64-32)))) {
+		num -= 32;
+		x <<= 32;
+	}
+	if (!(x & (~0ull << (BITS_PER_U64-16)))) {
+		num -= 16;
+		x <<= 16;
+	}
+	if (!(x & (~0ull << (BITS_PER_U64-8)))) {
+		num -= 8;
+		x <<= 8;
+	}
+	if (!(x & (~0ull << (BITS_PER_U64-4)))) {
+		num -= 4;
+		x <<= 4;
+	}
+	if (!(x & (~0ull << (BITS_PER_U64-2)))) {
+		num -= 2;
+		x <<= 2;
+	}
+	if (!(x & (~0ull << (BITS_PER_U64-1))))
+		num -= 1;
+
+	return num + 1;
+}
+
+static __u32 bictcp_clock_us(const struct sock *sk)
+{
+	return tcp_sk(sk)->tcp_mstamp;
+}
+
+static void bictcp_hystart_reset(struct sock *sk)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+
+	ca->round_start = ca->last_ack = bictcp_clock_us(sk);
+	ca->end_seq = tp->snd_nxt;
+	ca->curr_rtt = ~0U;
+	ca->sample_cnt = 0;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_init, struct sock *sk)
+{
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+
+	bictcp_reset(ca);
+
+	if (hystart)
+		bictcp_hystart_reset(sk);
+
+	if (!hystart && initial_ssthresh)
+		tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_cwnd_event, struct sock *sk, enum tcp_ca_event event)
+{
+	if (event == CA_EVENT_TX_START) {
+		struct bpf_bictcp *ca = inet_csk_ca(sk);
+		__u32 now = tcp_jiffies32;
+		__s32 delta;
+
+		delta = now - tcp_sk(sk)->lsndtime;
+
+		/* We were application limited (idle) for a while.
+		 * Shift epoch_start to keep cwnd growth to cubic curve.
+		 */
+		if (ca->epoch_start && delta > 0) {
+			ca->epoch_start += delta;
+			if (after(ca->epoch_start, now))
+				ca->epoch_start = now;
+		}
+		return;
+	}
+}
+
+/*
+ * cbrt(x) MSB values for x MSB values in [0..63].
+ * Precomputed then refined by hand - Willy Tarreau
+ *
+ * For x in [0..63],
+ *   v = cbrt(x << 18) - 1
+ *   cbrt(x) = (v[x] + 10) >> 6
+ */
+static const __u8 v[] = {
+	/* 0x00 */    0,   54,   54,   54,  118,  118,  118,  118,
+	/* 0x08 */  123,  129,  134,  138,  143,  147,  151,  156,
+	/* 0x10 */  157,  161,  164,  168,  170,  173,  176,  179,
+	/* 0x18 */  181,  185,  187,  190,  192,  194,  197,  199,
+	/* 0x20 */  200,  202,  204,  206,  209,  211,  213,  215,
+	/* 0x28 */  217,  219,  221,  222,  224,  225,  227,  229,
+	/* 0x30 */  231,  232,  234,  236,  237,  239,  240,  242,
+	/* 0x38 */  244,  245,  246,  248,  250,  251,  252,  254,
+};
+
+/* calculate the cubic root of x using a table lookup followed by one
+ * Newton-Raphson iteration.
+ * Avg err ~= 0.195%
+ */
+static __u32 cubic_root(__u64 a)
+{
+	__u32 x, b, shift;
+
+	if (a < 64) {
+		/* a in [0..63] */
+		return ((__u32)v[(__u32)a] + 35) >> 6;
+	}
+
+	b = fls64(a);
+	b = ((b * 84) >> 8) - 1;
+	shift = (a >> (b * 3));
+
+	/* it is needed for verifier's bound check on v */
+	if (shift >= 64)
+		return 0;
+
+	x = ((__u32)(((__u32)v[shift] + 10) << b)) >> 6;
+
+	/*
+	 * Newton-Raphson iteration
+	 *                         2
+	 * x    = ( 2 * x  +  a / x  ) / 3
+	 *  k+1          k         k
+	 */
+	x = (2 * x + (__u32)div64_u64(a, (__u64)x * (__u64)(x - 1)));
+	x = ((x * 341) >> 10);
+	return x;
+}
+
+/*
+ * Compute congestion window to use.
+ */
+static void bictcp_update(struct bpf_bictcp *ca, __u32 cwnd, __u32 acked)
+{
+	__u32 delta, bic_target, max_cnt;
+	__u64 offs, t;
+
+	ca->ack_cnt += acked;	/* count the number of ACKed packets */
+
+	if (ca->last_cwnd == cwnd &&
+	    (__s32)(tcp_jiffies32 - ca->last_time) <= HZ / 32)
+		return;
+
+	/* The CUBIC function can update ca->cnt at most once per jiffy.
+	 * On all cwnd reduction events, ca->epoch_start is set to 0,
+	 * which will force a recalculation of ca->cnt.
+	 */
+	if (ca->epoch_start && tcp_jiffies32 == ca->last_time)
+		goto tcp_friendliness;
+
+	ca->last_cwnd = cwnd;
+	ca->last_time = tcp_jiffies32;
+
+	if (ca->epoch_start == 0) {
+		ca->epoch_start = tcp_jiffies32;	/* record beginning */
+		ca->ack_cnt = acked;			/* start counting */
+		ca->tcp_cwnd = cwnd;			/* syn with cubic */
+
+		if (ca->last_max_cwnd <= cwnd) {
+			ca->bic_K = 0;
+			ca->bic_origin_point = cwnd;
+		} else {
+			/* Compute new K based on
+			 * (wmax-cwnd) * (srtt>>3 / HZ) / c * 2^(3*bictcp_HZ)
+			 */
+			ca->bic_K = cubic_root(cube_factor
+					       * (ca->last_max_cwnd - cwnd));
+			ca->bic_origin_point = ca->last_max_cwnd;
+		}
+	}
+
+	/* cubic function - calc*/
+	/* calculate c * time^3 / rtt,
+	 *  while considering overflow in calculation of time^3
+	 * (so time^3 is done by using 64 bit)
+	 * and without the support of division of 64bit numbers
+	 * (so all divisions are done by using 32 bit)
+	 *  also NOTE the unit of those variables
+	 *	  time  = (t - K) / 2^bictcp_HZ
+	 *	  c = bic_scale >> 10
+	 * rtt  = (srtt >> 3) / HZ
+	 * !!! The following code does not have overflow problems,
+	 * if the cwnd < 1 million packets !!!
+	 */
+
+	t = (__s32)(tcp_jiffies32 - ca->epoch_start) * USEC_PER_JIFFY;
+	t += ca->delay_min;
+	/* change the unit from usec to bictcp_HZ */
+	t <<= BICTCP_HZ;
+	t /= USEC_PER_SEC;
+
+	if (t < ca->bic_K)		/* t - K */
+		offs = ca->bic_K - t;
+	else
+		offs = t - ca->bic_K;
+
+	/* c/rtt * (t-K)^3 */
+	delta = (cube_rtt_scale * offs * offs * offs) >> (10+3*BICTCP_HZ);
+	if (t < ca->bic_K)                            /* below origin*/
+		bic_target = ca->bic_origin_point - delta;
+	else                                          /* above origin*/
+		bic_target = ca->bic_origin_point + delta;
+
+	/* cubic function - calc bictcp_cnt*/
+	if (bic_target > cwnd) {
+		ca->cnt = cwnd / (bic_target - cwnd);
+	} else {
+		ca->cnt = 100 * cwnd;              /* very small increment*/
+	}
+
+	/*
+	 * The initial growth of cubic function may be too conservative
+	 * when the available bandwidth is still unknown.
+	 */
+	if (ca->last_max_cwnd == 0 && ca->cnt > 20)
+		ca->cnt = 20;	/* increase cwnd 5% per RTT */
+
+tcp_friendliness:
+	/* TCP Friendly */
+	if (tcp_friendliness) {
+		__u32 scale = beta_scale;
+		__u32 n;
+
+		/* update tcp cwnd */
+		delta = (cwnd * scale) >> 3;
+		if (ca->ack_cnt > delta && delta) {
+			n = ca->ack_cnt / delta;
+			ca->ack_cnt -= n * delta;
+			ca->tcp_cwnd += n;
+		}
+
+		if (ca->tcp_cwnd > cwnd) {	/* if bic is slower than tcp */
+			delta = ca->tcp_cwnd - cwnd;
+			max_cnt = cwnd / delta;
+			if (ca->cnt > max_cnt)
+				ca->cnt = max_cnt;
+		}
+	}
+
+	/* The maximum rate of cwnd increase CUBIC allows is 1 packet per
+	 * 2 packets ACKed, meaning cwnd grows at 1.5x per RTT.
+	 */
+	ca->cnt = max(ca->cnt, 2U);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_cong_avoid, struct sock *sk, __u32 ack, __u32 acked)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+
+	if (!tcp_is_cwnd_limited(sk))
+		return;
+
+	if (tcp_in_slow_start(tp)) {
+		if (hystart && after(ack, ca->end_seq))
+			bictcp_hystart_reset(sk);
+		acked = tcp_slow_start(tp, acked);
+		if (!acked)
+			return;
+	}
+	bictcp_update(ca, tp->snd_cwnd, acked);
+	tcp_cong_avoid_ai(tp, ca->cnt, acked);
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_cubic_recalc_ssthresh, struct sock *sk)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+
+	ca->epoch_start = 0;	/* end of epoch */
+
+	/* Wmax and fast convergence */
+	if (tp->snd_cwnd < ca->last_max_cwnd && fast_convergence)
+		ca->last_max_cwnd = (tp->snd_cwnd * (BICTCP_BETA_SCALE + beta))
+			/ (2 * BICTCP_BETA_SCALE);
+	else
+		ca->last_max_cwnd = tp->snd_cwnd;
+
+	return max((tp->snd_cwnd * beta) / BICTCP_BETA_SCALE, 2U);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_state, struct sock *sk, __u8 new_state)
+{
+	if (new_state == TCP_CA_Loss) {
+		bictcp_reset(inet_csk_ca(sk));
+		bictcp_hystart_reset(sk);
+	}
+}
+
+#define GSO_MAX_SIZE		65536
+
+/* Account for TSO/GRO delays.
+ * Otherwise short RTT flows could get too small ssthresh, since during
+ * slow start we begin with small TSO packets and ca->delay_min would
+ * not account for long aggregation delay when TSO packets get bigger.
+ * Ideally even with a very small RTT we would like to have at least one
+ * TSO packet being sent and received by GRO, and another one in qdisc layer.
+ * We apply another 100% factor because @rate is doubled at this point.
+ * We cap the cushion to 1ms.
+ */
+static __u32 hystart_ack_delay(struct sock *sk)
+{
+	unsigned long rate;
+
+	rate = sk->sk_pacing_rate;
+	if (!rate)
+		return 0;
+	return min((__u64)USEC_PER_MSEC,
+		   div64_ul((__u64)GSO_MAX_SIZE * 4 * USEC_PER_SEC, rate));
+}
+
+static void hystart_update(struct sock *sk, __u32 delay)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+	__u32 threshold;
+
+	if (hystart_detect & HYSTART_ACK_TRAIN) {
+		__u32 now = bictcp_clock_us(sk);
+
+		/* first detection parameter - ack-train detection */
+		if ((__s32)(now - ca->last_ack) <= hystart_ack_delta_us) {
+			ca->last_ack = now;
+
+			threshold = ca->delay_min + hystart_ack_delay(sk);
+
+			/* Hystart ack train triggers if we get ack past
+			 * ca->delay_min/2.
+			 * Pacing might have delayed packets up to RTT/2
+			 * during slow start.
+			 */
+			if (sk->sk_pacing_status == SK_PACING_NONE)
+				threshold >>= 1;
+
+			if ((__s32)(now - ca->round_start) > threshold) {
+				ca->found = 1;
+				tp->snd_ssthresh = tp->snd_cwnd;
+			}
+		}
+	}
+
+	if (hystart_detect & HYSTART_DELAY) {
+		/* obtain the minimum delay of more than sampling packets */
+		if (ca->curr_rtt > delay)
+			ca->curr_rtt = delay;
+		if (ca->sample_cnt < HYSTART_MIN_SAMPLES) {
+			ca->sample_cnt++;
+		} else {
+			if (ca->curr_rtt > ca->delay_min +
+			    HYSTART_DELAY_THRESH(ca->delay_min >> 3)) {
+				ca->found = 1;
+				tp->snd_ssthresh = tp->snd_cwnd;
+			}
+		}
+	}
+}
+
+int bpf_cubic_acked_called = 0;
+
+SEC("struct_ops")
+void BPF_PROG(bpf_cubic_acked, struct sock *sk, const struct ack_sample *sample)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_bictcp *ca = inet_csk_ca(sk);
+	__u32 delay;
+
+	bpf_cubic_acked_called = 1;
+	/* Some calls are for duplicates without timestamps */
+	if (sample->rtt_us < 0)
+		return;
+
+	/* Discard delay samples right after fast recovery */
+	if (ca->epoch_start && (__s32)(tcp_jiffies32 - ca->epoch_start) < HZ)
+		return;
+
+	delay = sample->rtt_us;
+	if (delay == 0)
+		delay = 1;
+
+	/* first time call or link delay decreases */
+	if (ca->delay_min == 0 || ca->delay_min > delay)
+		ca->delay_min = delay;
+
+	/* hystart triggers when cwnd is larger than some threshold */
+	if (!ca->found && tcp_in_slow_start(tp) && hystart &&
+	    tp->snd_cwnd >= hystart_low_window)
+		hystart_update(sk, delay);
+}
+
+extern __u32 tcp_reno_undo_cwnd(struct sock *sk) __ksym;
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_cubic_undo_cwnd, struct sock *sk)
+{
+	return tcp_reno_undo_cwnd(sk);
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops cubic = {
+	.init		= (void *)bpf_cubic_init,
+	.ssthresh	= (void *)bpf_cubic_recalc_ssthresh,
+	.cong_avoid	= (void *)bpf_cubic_cong_avoid,
+	.set_state	= (void *)bpf_cubic_state,
+	.undo_cwnd	= (void *)bpf_cubic_undo_cwnd,
+	.cwnd_event	= (void *)bpf_cubic_cwnd_event,
+	.pkts_acked     = (void *)bpf_cubic_acked,
+	.name		= "bpf_cubic",
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp.c b/tools/testing/selftests/bpf/progs/bpf_dctcp.c
new file mode 100644
index 000000000000..1cc83140849f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_dctcp.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+/* WARNING: This implementation is not necessarily the same
+ * as the tcp_dctcp.c.  The purpose is mainly for testing
+ * the kernel BPF logic.
+ */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#ifndef EBUSY
+#define EBUSY 16
+#endif
+#define min_not_zero(x, y) ({			\
+	typeof(x) __x = (x);			\
+	typeof(y) __y = (y);			\
+	__x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
+
+char _license[] SEC("license") = "GPL";
+
+volatile const char fallback_cc[TCP_CA_NAME_MAX];
+const char bpf_dctcp[] = "bpf_dctcp";
+const char tcp_cdg[] = "cdg";
+char cc_res[TCP_CA_NAME_MAX];
+int tcp_cdg_res = 0;
+int stg_result = 0;
+int ebusy_cnt = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_stg_map SEC(".maps");
+
+#define DCTCP_MAX_ALPHA	1024U
+
+struct bpf_dctcp {
+	__u32 old_delivered;
+	__u32 old_delivered_ce;
+	__u32 prior_rcv_nxt;
+	__u32 dctcp_alpha;
+	__u32 next_seq;
+	__u32 ce_state;
+	__u32 loss_cwnd;
+};
+
+static unsigned int dctcp_shift_g = 4; /* g = 1/2^4 */
+static unsigned int dctcp_alpha_on_init = DCTCP_MAX_ALPHA;
+
+static void dctcp_reset(const struct tcp_sock *tp, struct bpf_dctcp *ca)
+{
+	ca->next_seq = tp->snd_nxt;
+
+	ca->old_delivered = tp->delivered;
+	ca->old_delivered_ce = tp->delivered_ce;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_dctcp_init, struct sock *sk)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
+	int *stg;
+
+	if (!(tp->ecn_flags & TCP_ECN_OK) && fallback_cc[0]) {
+		/* Switch to fallback */
+		if (bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION,
+				   (void *)fallback_cc, sizeof(fallback_cc)) == -EBUSY)
+			ebusy_cnt++;
+
+		/* Switch back to myself and the recurred bpf_dctcp_init()
+		 * will get -EBUSY for all bpf_setsockopt(TCP_CONGESTION),
+		 * except the last "cdg" one.
+		 */
+		if (bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION,
+				   (void *)bpf_dctcp, sizeof(bpf_dctcp)) == -EBUSY)
+			ebusy_cnt++;
+
+		/* Switch back to fallback */
+		if (bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION,
+				   (void *)fallback_cc, sizeof(fallback_cc)) == -EBUSY)
+			ebusy_cnt++;
+
+		/* Expecting -ENOTSUPP for tcp_cdg_res */
+		tcp_cdg_res = bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION,
+					     (void *)tcp_cdg, sizeof(tcp_cdg));
+		bpf_getsockopt(sk, SOL_TCP, TCP_CONGESTION,
+			       (void *)cc_res, sizeof(cc_res));
+		return;
+	}
+
+	ca->prior_rcv_nxt = tp->rcv_nxt;
+	ca->dctcp_alpha = min(dctcp_alpha_on_init, DCTCP_MAX_ALPHA);
+	ca->loss_cwnd = 0;
+	ca->ce_state = 0;
+
+	stg = bpf_sk_storage_get(&sk_stg_map, (void *)tp, NULL, 0);
+	if (stg) {
+		stg_result = *stg;
+		bpf_sk_storage_delete(&sk_stg_map, (void *)tp);
+	}
+	dctcp_reset(tp, ca);
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_dctcp_ssthresh, struct sock *sk)
+{
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	ca->loss_cwnd = tp->snd_cwnd;
+	return max(tp->snd_cwnd - ((tp->snd_cwnd * ca->dctcp_alpha) >> 11U), 2U);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_dctcp_update_alpha, struct sock *sk, __u32 flags)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
+
+	/* Expired RTT */
+	if (!before(tp->snd_una, ca->next_seq)) {
+		__u32 delivered_ce = tp->delivered_ce - ca->old_delivered_ce;
+		__u32 alpha = ca->dctcp_alpha;
+
+		/* alpha = (1 - g) * alpha + g * F */
+
+		alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g);
+		if (delivered_ce) {
+			__u32 delivered = tp->delivered - ca->old_delivered;
+
+			/* If dctcp_shift_g == 1, a 32bit value would overflow
+			 * after 8 M packets.
+			 */
+			delivered_ce <<= (10 - dctcp_shift_g);
+			delivered_ce /= max(1U, delivered);
+
+			alpha = min(alpha + delivered_ce, DCTCP_MAX_ALPHA);
+		}
+		ca->dctcp_alpha = alpha;
+		dctcp_reset(tp, ca);
+	}
+}
+
+static void dctcp_react_to_loss(struct sock *sk)
+{
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	ca->loss_cwnd = tp->snd_cwnd;
+	tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_dctcp_state, struct sock *sk, __u8 new_state)
+{
+	if (new_state == TCP_CA_Recovery &&
+	    new_state != BPF_CORE_READ_BITFIELD(inet_csk(sk), icsk_ca_state))
+		dctcp_react_to_loss(sk);
+	/* We handle RTO in bpf_dctcp_cwnd_event to ensure that we perform only
+	 * one loss-adjustment per RTT.
+	 */
+}
+
+static void dctcp_ece_ack_cwr(struct sock *sk, __u32 ce_state)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+
+	if (ce_state == 1)
+		tp->ecn_flags |= TCP_ECN_DEMAND_CWR;
+	else
+		tp->ecn_flags &= ~TCP_ECN_DEMAND_CWR;
+}
+
+/* Minimal DCTP CE state machine:
+ *
+ * S:	0 <- last pkt was non-CE
+ *	1 <- last pkt was CE
+ */
+static void dctcp_ece_ack_update(struct sock *sk, enum tcp_ca_event evt,
+				 __u32 *prior_rcv_nxt, __u32 *ce_state)
+{
+	__u32 new_ce_state = (evt == CA_EVENT_ECN_IS_CE) ? 1 : 0;
+
+	if (*ce_state != new_ce_state) {
+		/* CE state has changed, force an immediate ACK to
+		 * reflect the new CE state. If an ACK was delayed,
+		 * send that first to reflect the prior CE state.
+		 */
+		if (inet_csk(sk)->icsk_ack.pending & ICSK_ACK_TIMER) {
+			dctcp_ece_ack_cwr(sk, *ce_state);
+			bpf_tcp_send_ack(sk, *prior_rcv_nxt);
+		}
+		inet_csk(sk)->icsk_ack.pending |= ICSK_ACK_NOW;
+	}
+	*prior_rcv_nxt = tcp_sk(sk)->rcv_nxt;
+	*ce_state = new_ce_state;
+	dctcp_ece_ack_cwr(sk, new_ce_state);
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_dctcp_cwnd_event, struct sock *sk, enum tcp_ca_event ev)
+{
+	struct bpf_dctcp *ca = inet_csk_ca(sk);
+
+	switch (ev) {
+	case CA_EVENT_ECN_IS_CE:
+	case CA_EVENT_ECN_NO_CE:
+		dctcp_ece_ack_update(sk, ev, &ca->prior_rcv_nxt, &ca->ce_state);
+		break;
+	case CA_EVENT_LOSS:
+		dctcp_react_to_loss(sk);
+		break;
+	default:
+		/* Don't care for the rest. */
+		break;
+	}
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(bpf_dctcp_cwnd_undo, struct sock *sk)
+{
+	const struct bpf_dctcp *ca = inet_csk_ca(sk);
+
+	return max(tcp_sk(sk)->snd_cwnd, ca->loss_cwnd);
+}
+
+extern void tcp_reno_cong_avoid(struct sock *sk, __u32 ack, __u32 acked) __ksym;
+
+SEC("struct_ops")
+void BPF_PROG(bpf_dctcp_cong_avoid, struct sock *sk, __u32 ack, __u32 acked)
+{
+	tcp_reno_cong_avoid(sk, ack, acked);
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops dctcp_nouse = {
+	.init		= (void *)bpf_dctcp_init,
+	.set_state	= (void *)bpf_dctcp_state,
+	.flags		= TCP_CONG_NEEDS_ECN,
+	.name		= "bpf_dctcp_nouse",
+};
+
+SEC(".struct_ops")
+struct tcp_congestion_ops dctcp = {
+	.init		= (void *)bpf_dctcp_init,
+	.in_ack_event   = (void *)bpf_dctcp_update_alpha,
+	.cwnd_event	= (void *)bpf_dctcp_cwnd_event,
+	.ssthresh	= (void *)bpf_dctcp_ssthresh,
+	.cong_avoid	= (void *)bpf_dctcp_cong_avoid,
+	.undo_cwnd	= (void *)bpf_dctcp_cwnd_undo,
+	.set_state	= (void *)bpf_dctcp_state,
+	.flags		= TCP_CONG_NEEDS_ECN,
+	.name		= "bpf_dctcp",
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c b/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c
new file mode 100644
index 000000000000..c91763f248b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_dctcp_release.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+const char cubic[] = "cubic";
+
+SEC("struct_ops")
+void BPF_PROG(dctcp_nouse_release, struct sock *sk)
+{
+	bpf_setsockopt(sk, SOL_TCP, TCP_CONGESTION,
+		       (void *)cubic, sizeof(cubic));
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops dctcp_rel = {
+	.release	= (void *)dctcp_nouse_release,
+	.name		= "bpf_dctcp_rel",
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_flow.c b/tools/testing/selftests/bpf/progs/bpf_flow.c
new file mode 100644
index 000000000000..b04e092fac94
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_flow.c
@@ -0,0 +1,437 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <limits.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/pkt_cls.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/icmp.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/if_packet.h>
+#include <sys/socket.h>
+#include <linux/if_tunnel.h>
+#include <linux/mpls.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define PROG(F) PROG_(F, _##F)
+#define PROG_(NUM, NAME) SEC("flow_dissector") int flow_dissector_##NUM
+
+#define FLOW_CONTINUE_SADDR 0x7f00007f /* 127.0.0.127 */
+
+/* These are the identifiers of the BPF programs that will be used in tail
+ * calls. Name is limited to 16 characters, with the terminating character and
+ * bpf_func_ above, we have only 6 to work with, anything after will be cropped.
+ */
+#define IP		0
+#define IPV6		1
+#define IPV6OP		2 /* Destination/Hop-by-Hop Options IPv6 Ext. Header */
+#define IPV6FR		3 /* Fragmentation IPv6 Extension Header */
+#define MPLS		4
+#define VLAN		5
+#define MAX_PROG	6
+
+#define IP_MF		0x2000
+#define IP_OFFSET	0x1FFF
+#define IP6_MF		0x0001
+#define IP6_OFFSET	0xFFF8
+
+struct vlan_hdr {
+	__be16 h_vlan_TCI;
+	__be16 h_vlan_encapsulated_proto;
+};
+
+struct gre_hdr {
+	__be16 flags;
+	__be16 proto;
+};
+
+struct frag_hdr {
+	__u8 nexthdr;
+	__u8 reserved;
+	__be16 frag_off;
+	__be32 identification;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, MAX_PROG);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1024);
+	__type(key, __u32);
+	__type(value, struct bpf_flow_keys);
+} last_dissection SEC(".maps");
+
+static __always_inline int export_flow_keys(struct bpf_flow_keys *keys,
+					    int ret)
+{
+	__u32 key = (__u32)(keys->sport) << 16 | keys->dport;
+	struct bpf_flow_keys val;
+
+	memcpy(&val, keys, sizeof(val));
+	bpf_map_update_elem(&last_dissection, &key, &val, BPF_ANY);
+	return ret;
+}
+
+#define IPV6_FLOWLABEL_MASK		__bpf_constant_htonl(0x000FFFFF)
+static inline __be32 ip6_flowlabel(const struct ipv6hdr *hdr)
+{
+	return *(__be32 *)hdr & IPV6_FLOWLABEL_MASK;
+}
+
+static __always_inline void *bpf_flow_dissect_get_header(struct __sk_buff *skb,
+							 __u16 hdr_size,
+							 void *buffer)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	__u16 thoff = skb->flow_keys->thoff;
+	__u8 *hdr;
+
+	/* Verifies this variable offset does not overflow */
+	if (thoff > (USHRT_MAX - hdr_size))
+		return NULL;
+
+	hdr = data + thoff;
+	if (hdr + hdr_size <= data_end)
+		return hdr;
+
+	if (bpf_skb_load_bytes(skb, thoff, buffer, hdr_size))
+		return NULL;
+
+	return buffer;
+}
+
+/* Dispatches on ETHERTYPE */
+static __always_inline int parse_eth_proto(struct __sk_buff *skb, __be16 proto)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+
+	switch (proto) {
+	case bpf_htons(ETH_P_IP):
+		bpf_tail_call_static(skb, &jmp_table, IP);
+		break;
+	case bpf_htons(ETH_P_IPV6):
+		bpf_tail_call_static(skb, &jmp_table, IPV6);
+		break;
+	case bpf_htons(ETH_P_MPLS_MC):
+	case bpf_htons(ETH_P_MPLS_UC):
+		bpf_tail_call_static(skb, &jmp_table, MPLS);
+		break;
+	case bpf_htons(ETH_P_8021Q):
+	case bpf_htons(ETH_P_8021AD):
+		bpf_tail_call_static(skb, &jmp_table, VLAN);
+		break;
+	default:
+		/* Protocol not supported */
+		return export_flow_keys(keys, BPF_DROP);
+	}
+
+	return export_flow_keys(keys, BPF_DROP);
+}
+
+SEC("flow_dissector")
+int _dissect(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+
+	if (keys->n_proto == bpf_htons(ETH_P_IP)) {
+		/* IP traffic from FLOW_CONTINUE_SADDR falls-back to
+		 * standard dissector
+		 */
+		struct iphdr *iph, _iph;
+
+		iph = bpf_flow_dissect_get_header(skb, sizeof(*iph), &_iph);
+		if (iph && iph->ihl == 5 &&
+		    iph->saddr == bpf_htonl(FLOW_CONTINUE_SADDR)) {
+			return BPF_FLOW_DISSECTOR_CONTINUE;
+		}
+	}
+
+	return parse_eth_proto(skb, keys->n_proto);
+}
+
+/* Parses on IPPROTO_* */
+static __always_inline int parse_ip_proto(struct __sk_buff *skb, __u8 proto)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	void *data_end = (void *)(long)skb->data_end;
+	struct icmphdr *icmp, _icmp;
+	struct gre_hdr *gre, _gre;
+	struct ethhdr *eth, _eth;
+	struct tcphdr *tcp, _tcp;
+	struct udphdr *udp, _udp;
+
+	switch (proto) {
+	case IPPROTO_ICMP:
+		icmp = bpf_flow_dissect_get_header(skb, sizeof(*icmp), &_icmp);
+		if (!icmp)
+			return export_flow_keys(keys, BPF_DROP);
+		return export_flow_keys(keys, BPF_OK);
+	case IPPROTO_IPIP:
+		keys->is_encap = true;
+		if (keys->flags & BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP)
+			return export_flow_keys(keys, BPF_OK);
+
+		return parse_eth_proto(skb, bpf_htons(ETH_P_IP));
+	case IPPROTO_IPV6:
+		keys->is_encap = true;
+		if (keys->flags & BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP)
+			return export_flow_keys(keys, BPF_OK);
+
+		return parse_eth_proto(skb, bpf_htons(ETH_P_IPV6));
+	case IPPROTO_GRE:
+		gre = bpf_flow_dissect_get_header(skb, sizeof(*gre), &_gre);
+		if (!gre)
+			return export_flow_keys(keys, BPF_DROP);
+
+		if (bpf_htons(gre->flags & GRE_VERSION))
+			/* Only inspect standard GRE packets with version 0 */
+			return export_flow_keys(keys, BPF_OK);
+
+		keys->thoff += sizeof(*gre); /* Step over GRE Flags and Proto */
+		if (GRE_IS_CSUM(gre->flags))
+			keys->thoff += 4; /* Step over chksum and Padding */
+		if (GRE_IS_KEY(gre->flags))
+			keys->thoff += 4; /* Step over key */
+		if (GRE_IS_SEQ(gre->flags))
+			keys->thoff += 4; /* Step over sequence number */
+
+		keys->is_encap = true;
+		if (keys->flags & BPF_FLOW_DISSECTOR_F_STOP_AT_ENCAP)
+			return export_flow_keys(keys, BPF_OK);
+
+		if (gre->proto == bpf_htons(ETH_P_TEB)) {
+			eth = bpf_flow_dissect_get_header(skb, sizeof(*eth),
+							  &_eth);
+			if (!eth)
+				return export_flow_keys(keys, BPF_DROP);
+
+			keys->thoff += sizeof(*eth);
+
+			return parse_eth_proto(skb, eth->h_proto);
+		} else {
+			return parse_eth_proto(skb, gre->proto);
+		}
+	case IPPROTO_TCP:
+		tcp = bpf_flow_dissect_get_header(skb, sizeof(*tcp), &_tcp);
+		if (!tcp)
+			return export_flow_keys(keys, BPF_DROP);
+
+		if (tcp->doff < 5)
+			return export_flow_keys(keys, BPF_DROP);
+
+		if ((__u8 *)tcp + (tcp->doff << 2) > data_end)
+			return export_flow_keys(keys, BPF_DROP);
+
+		keys->sport = tcp->source;
+		keys->dport = tcp->dest;
+		return export_flow_keys(keys, BPF_OK);
+	case IPPROTO_UDP:
+	case IPPROTO_UDPLITE:
+		udp = bpf_flow_dissect_get_header(skb, sizeof(*udp), &_udp);
+		if (!udp)
+			return export_flow_keys(keys, BPF_DROP);
+
+		keys->sport = udp->source;
+		keys->dport = udp->dest;
+		return export_flow_keys(keys, BPF_OK);
+	default:
+		return export_flow_keys(keys, BPF_DROP);
+	}
+
+	return export_flow_keys(keys, BPF_DROP);
+}
+
+static __always_inline int parse_ipv6_proto(struct __sk_buff *skb, __u8 nexthdr)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+
+	switch (nexthdr) {
+	case IPPROTO_HOPOPTS:
+	case IPPROTO_DSTOPTS:
+		bpf_tail_call_static(skb, &jmp_table, IPV6OP);
+		break;
+	case IPPROTO_FRAGMENT:
+		bpf_tail_call_static(skb, &jmp_table, IPV6FR);
+		break;
+	default:
+		return parse_ip_proto(skb, nexthdr);
+	}
+
+	return export_flow_keys(keys, BPF_DROP);
+}
+
+PROG(IP)(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph, _iph;
+	bool done = false;
+
+	iph = bpf_flow_dissect_get_header(skb, sizeof(*iph), &_iph);
+	if (!iph)
+		return export_flow_keys(keys, BPF_DROP);
+
+	/* IP header cannot be smaller than 20 bytes */
+	if (iph->ihl < 5)
+		return export_flow_keys(keys, BPF_DROP);
+
+	keys->addr_proto = ETH_P_IP;
+	keys->ipv4_src = iph->saddr;
+	keys->ipv4_dst = iph->daddr;
+	keys->ip_proto = iph->protocol;
+
+	keys->thoff += iph->ihl << 2;
+	if (data + keys->thoff > data_end)
+		return export_flow_keys(keys, BPF_DROP);
+
+	if (iph->frag_off & bpf_htons(IP_MF | IP_OFFSET)) {
+		keys->is_frag = true;
+		if (iph->frag_off & bpf_htons(IP_OFFSET)) {
+			/* From second fragment on, packets do not have headers
+			 * we can parse.
+			 */
+			done = true;
+		} else {
+			keys->is_first_frag = true;
+			/* No need to parse fragmented packet unless
+			 * explicitly asked for.
+			 */
+			if (!(keys->flags &
+			      BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG))
+				done = true;
+		}
+	}
+
+	if (done)
+		return export_flow_keys(keys, BPF_OK);
+
+	return parse_ip_proto(skb, iph->protocol);
+}
+
+PROG(IPV6)(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	struct ipv6hdr *ip6h, _ip6h;
+
+	ip6h = bpf_flow_dissect_get_header(skb, sizeof(*ip6h), &_ip6h);
+	if (!ip6h)
+		return export_flow_keys(keys, BPF_DROP);
+
+	keys->addr_proto = ETH_P_IPV6;
+	memcpy(&keys->ipv6_src, &ip6h->saddr, 2*sizeof(ip6h->saddr));
+
+	keys->thoff += sizeof(struct ipv6hdr);
+	keys->ip_proto = ip6h->nexthdr;
+	keys->flow_label = ip6_flowlabel(ip6h);
+
+	if (keys->flow_label && keys->flags & BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL)
+		return export_flow_keys(keys, BPF_OK);
+
+	return parse_ipv6_proto(skb, ip6h->nexthdr);
+}
+
+PROG(IPV6OP)(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	struct ipv6_opt_hdr *ip6h, _ip6h;
+
+	ip6h = bpf_flow_dissect_get_header(skb, sizeof(*ip6h), &_ip6h);
+	if (!ip6h)
+		return export_flow_keys(keys, BPF_DROP);
+
+	/* hlen is in 8-octets and does not include the first 8 bytes
+	 * of the header
+	 */
+	keys->thoff += (1 + ip6h->hdrlen) << 3;
+	keys->ip_proto = ip6h->nexthdr;
+
+	return parse_ipv6_proto(skb, ip6h->nexthdr);
+}
+
+PROG(IPV6FR)(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	struct frag_hdr *fragh, _fragh;
+
+	fragh = bpf_flow_dissect_get_header(skb, sizeof(*fragh), &_fragh);
+	if (!fragh)
+		return export_flow_keys(keys, BPF_DROP);
+
+	keys->thoff += sizeof(*fragh);
+	keys->is_frag = true;
+	keys->ip_proto = fragh->nexthdr;
+
+	if (!(fragh->frag_off & bpf_htons(IP6_OFFSET))) {
+		keys->is_first_frag = true;
+
+		/* No need to parse fragmented packet unless
+		 * explicitly asked for.
+		 */
+		if (!(keys->flags & BPF_FLOW_DISSECTOR_F_PARSE_1ST_FRAG))
+			return export_flow_keys(keys, BPF_OK);
+	} else {
+		return export_flow_keys(keys, BPF_OK);
+	}
+
+	return parse_ipv6_proto(skb, fragh->nexthdr);
+}
+
+PROG(MPLS)(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	struct mpls_label *mpls, _mpls;
+
+	mpls = bpf_flow_dissect_get_header(skb, sizeof(*mpls), &_mpls);
+	if (!mpls)
+		return export_flow_keys(keys, BPF_DROP);
+
+	return export_flow_keys(keys, BPF_OK);
+}
+
+PROG(VLAN)(struct __sk_buff *skb)
+{
+	struct bpf_flow_keys *keys = skb->flow_keys;
+	struct vlan_hdr *vlan, _vlan;
+
+	/* Account for double-tagging */
+	if (keys->n_proto == bpf_htons(ETH_P_8021AD)) {
+		vlan = bpf_flow_dissect_get_header(skb, sizeof(*vlan), &_vlan);
+		if (!vlan)
+			return export_flow_keys(keys, BPF_DROP);
+
+		if (vlan->h_vlan_encapsulated_proto != bpf_htons(ETH_P_8021Q))
+			return export_flow_keys(keys, BPF_DROP);
+
+		keys->nhoff += sizeof(*vlan);
+		keys->thoff += sizeof(*vlan);
+	}
+
+	vlan = bpf_flow_dissect_get_header(skb, sizeof(*vlan), &_vlan);
+	if (!vlan)
+		return export_flow_keys(keys, BPF_DROP);
+
+	keys->nhoff += sizeof(*vlan);
+	keys->thoff += sizeof(*vlan);
+	/* Only allow 8021AD + 8021Q double tagging and no triple tagging.*/
+	if (vlan->h_vlan_encapsulated_proto == bpf_htons(ETH_P_8021AD) ||
+	    vlan->h_vlan_encapsulated_proto == bpf_htons(ETH_P_8021Q))
+		return export_flow_keys(keys, BPF_DROP);
+
+	keys->n_proto = vlan->h_vlan_encapsulated_proto;
+	return parse_eth_proto(skb, vlan->h_vlan_encapsulated_proto);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_gotox.c b/tools/testing/selftests/bpf/progs/bpf_gotox.c
new file mode 100644
index 000000000000..216c71b94c64
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_gotox.c
@@ -0,0 +1,448 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+__u64 in_user;
+__u64 ret_user;
+
+int pid;
+
+/*
+ * Skip all the tests if compiler doesn't support indirect jumps.
+ *
+ * If tests are skipped, then all functions below are compiled as
+ * dummy, such that the skeleton looks the same, and the userspace
+ * program can avoid any checks rather than if data->skip is set.
+ */
+#ifdef __BPF_FEATURE_GOTOX
+__u64 skip SEC(".data") = 0;
+#else
+__u64 skip = 1;
+#endif
+
+struct simple_ctx {
+	__u64 x;
+};
+
+#ifdef __BPF_FEATURE_GOTOX
+__u64 some_var;
+
+/*
+ * This function adds code which will be replaced by a different
+ * number of instructions by the verifier. This adds additional
+ * stress on testing the insn_array maps corresponding to indirect jumps.
+ */
+static __always_inline void adjust_insns(__u64 x)
+{
+	some_var ^= x + bpf_jiffies64();
+}
+
+SEC("syscall")
+int one_switch(struct simple_ctx *ctx)
+{
+	switch (ctx->x) {
+	case 0:
+		adjust_insns(ctx->x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(ctx->x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(ctx->x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(ctx->x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(ctx->x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(ctx->x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int one_switch_non_zero_sec_off(struct simple_ctx *ctx)
+{
+	switch (ctx->x) {
+	case 0:
+		adjust_insns(ctx->x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(ctx->x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(ctx->x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(ctx->x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(ctx->x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(ctx->x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int simple_test_other_sec(struct pt_regs *ctx)
+{
+	__u64 x = in_user;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	switch (x) {
+	case 0:
+		adjust_insns(x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int two_switches(struct simple_ctx *ctx)
+{
+	switch (ctx->x) {
+	case 0:
+		adjust_insns(ctx->x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(ctx->x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(ctx->x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(ctx->x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(ctx->x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(ctx->x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	switch (ctx->x + !!ret_user) {
+	case 1:
+		adjust_insns(ctx->x + 7);
+		ret_user = 103;
+		break;
+	case 2:
+		adjust_insns(ctx->x + 9);
+		ret_user = 104;
+		break;
+	case 3:
+		adjust_insns(ctx->x + 11);
+		ret_user = 107;
+		break;
+	case 4:
+		adjust_insns(ctx->x + 11);
+		ret_user = 205;
+		break;
+	case 5:
+		adjust_insns(ctx->x + 11);
+		ret_user = 115;
+		break;
+	default:
+		adjust_insns(ctx->x + 177);
+		ret_user = 1019;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int big_jump_table(struct simple_ctx *ctx __attribute__((unused)))
+{
+	const void *const jt[256] = {
+		[0 ... 255] = &&default_label,
+		[0] = &&l0,
+		[11] = &&l11,
+		[27] = &&l27,
+		[31] = &&l31,
+	};
+
+	goto *jt[ctx->x & 0xff];
+
+l0:
+	adjust_insns(ctx->x + 1);
+	ret_user = 2;
+	return 0;
+
+l11:
+	adjust_insns(ctx->x + 7);
+	ret_user = 3;
+	return 0;
+
+l27:
+	adjust_insns(ctx->x + 9);
+	ret_user = 4;
+	return 0;
+
+l31:
+	adjust_insns(ctx->x + 11);
+	ret_user = 5;
+	return 0;
+
+default_label:
+	adjust_insns(ctx->x + 177);
+	ret_user = 19;
+	return 0;
+}
+
+SEC("syscall")
+int one_jump_two_maps(struct simple_ctx *ctx __attribute__((unused)))
+{
+	__label__ l1, l2, l3, l4;
+	void *jt1[2] = { &&l1, &&l2 };
+	void *jt2[2] = { &&l3, &&l4 };
+	unsigned int a = ctx->x % 2;
+	unsigned int b = (ctx->x / 2) % 2;
+	volatile int ret = 0;
+
+	if (!(a < 2 && b < 2))
+		return 19;
+
+	if (ctx->x % 2)
+		goto *jt1[a];
+	else
+		goto *jt2[b];
+
+	l1: ret += 1;
+	l2: ret += 3;
+	l3: ret += 5;
+	l4: ret += 7;
+
+	ret_user = ret;
+	return ret;
+}
+
+SEC("syscall")
+int one_map_two_jumps(struct simple_ctx *ctx __attribute__((unused)))
+{
+	__label__ l1, l2, l3;
+	void *jt[3] = { &&l1, &&l2, &&l3 };
+	unsigned int a = (ctx->x >> 2) & 1;
+	unsigned int b = (ctx->x >> 3) & 1;
+	volatile int ret = 0;
+
+	if (ctx->x % 2)
+		goto *jt[a];
+
+	if (ctx->x % 3)
+		goto *jt[a + b];
+
+	l1: ret += 3;
+	l2: ret += 5;
+	l3: ret += 7;
+
+	ret_user = ret;
+	return ret;
+}
+
+/* Just to introduce some non-zero offsets in .text */
+static __noinline int f0(volatile struct simple_ctx *ctx __arg_ctx)
+{
+	if (ctx)
+		return 1;
+	else
+		return 13;
+}
+
+SEC("syscall") int f1(struct simple_ctx *ctx)
+{
+	ret_user = 0;
+	return f0(ctx);
+}
+
+static __noinline int __static_global(__u64 x)
+{
+	switch (x) {
+	case 0:
+		adjust_insns(x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int use_static_global1(struct simple_ctx *ctx)
+{
+	ret_user = 0;
+	return __static_global(ctx->x);
+}
+
+SEC("syscall")
+int use_static_global2(struct simple_ctx *ctx)
+{
+	ret_user = 0;
+	adjust_insns(ctx->x + 1);
+	return __static_global(ctx->x);
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int use_static_global_other_sec(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	return __static_global(in_user);
+}
+
+__noinline int __nonstatic_global(__u64 x)
+{
+	switch (x) {
+	case 0:
+		adjust_insns(x + 1);
+		ret_user = 2;
+		break;
+	case 1:
+		adjust_insns(x + 7);
+		ret_user = 3;
+		break;
+	case 2:
+		adjust_insns(x + 9);
+		ret_user = 4;
+		break;
+	case 3:
+		adjust_insns(x + 11);
+		ret_user = 5;
+		break;
+	case 4:
+		adjust_insns(x + 17);
+		ret_user = 7;
+		break;
+	default:
+		adjust_insns(x + 177);
+		ret_user = 19;
+		break;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int use_nonstatic_global1(struct simple_ctx *ctx)
+{
+	ret_user = 0;
+	return __nonstatic_global(ctx->x);
+}
+
+SEC("syscall")
+int use_nonstatic_global2(struct simple_ctx *ctx)
+{
+	ret_user = 0;
+	adjust_insns(ctx->x + 1);
+	return __nonstatic_global(ctx->x);
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int use_nonstatic_global_other_sec(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	return __nonstatic_global(in_user);
+}
+
+#else /* __BPF_FEATURE_GOTOX */
+
+#define SKIP_TEST(TEST_NAME)				\
+	SEC("syscall") int TEST_NAME(void *ctx)		\
+	{						\
+		return 0;				\
+	}
+
+SKIP_TEST(one_switch);
+SKIP_TEST(one_switch_non_zero_sec_off);
+SKIP_TEST(simple_test_other_sec);
+SKIP_TEST(two_switches);
+SKIP_TEST(big_jump_table);
+SKIP_TEST(one_jump_two_maps);
+SKIP_TEST(one_map_two_jumps);
+SKIP_TEST(use_static_global1);
+SKIP_TEST(use_static_global2);
+SKIP_TEST(use_static_global_other_sec);
+SKIP_TEST(use_nonstatic_global1);
+SKIP_TEST(use_nonstatic_global2);
+SKIP_TEST(use_nonstatic_global_other_sec);
+
+#endif /* __BPF_FEATURE_GOTOX */
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c b/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c
new file mode 100644
index 000000000000..56957557e3e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define MAX_ENTRIES 1000
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u32);
+	__type(value, u64);
+	__uint(max_entries, MAX_ENTRIES);
+} hash_map_bench SEC(".maps");
+
+u64 __attribute__((__aligned__(256))) percpu_time[256];
+u64 nr_loops;
+
+static int loop_update_callback(__u32 index, u32 *key)
+{
+	u64 init_val = 1;
+
+	bpf_map_update_elem(&hash_map_bench, key, &init_val, BPF_ANY);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int benchmark(void *ctx)
+{
+	u32 cpu = bpf_get_smp_processor_id();
+	u32 key = cpu + MAX_ENTRIES;
+	u64 start_time = bpf_ktime_get_ns();
+
+	bpf_loop(nr_loops, loop_update_callback, &key, 0);
+	percpu_time[cpu & 255] = bpf_ktime_get_ns() - start_time;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_hashmap_lookup.c b/tools/testing/selftests/bpf/progs/bpf_hashmap_lookup.c
new file mode 100644
index 000000000000..1eb74ddca414
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_hashmap_lookup.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+} hash_map_bench SEC(".maps");
+
+/* The number of slots to store times */
+#define NR_SLOTS 32
+#define NR_CPUS 256
+#define CPU_MASK (NR_CPUS-1)
+
+/* Configured by userspace */
+u64 nr_entries;
+u64 nr_loops;
+u32 __attribute__((__aligned__(8))) key[NR_CPUS];
+
+/* Filled by us */
+u64 __attribute__((__aligned__(256))) percpu_times_index[NR_CPUS];
+u64 __attribute__((__aligned__(256))) percpu_times[NR_CPUS][NR_SLOTS];
+
+static inline void patch_key(u32 i)
+{
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	key[0] = i + 1;
+#else
+	key[0] = __builtin_bswap32(i + 1);
+#endif
+	/* the rest of key is random and is configured by userspace */
+}
+
+static int lookup_callback(__u32 index, u32 *unused)
+{
+	patch_key(index);
+	return bpf_map_lookup_elem(&hash_map_bench, key) ? 0 : 1;
+}
+
+static int loop_lookup_callback(__u32 index, u32 *unused)
+{
+	return bpf_loop(nr_entries, lookup_callback, NULL, 0) ? 0 : 1;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int benchmark(void *ctx)
+{
+	u32 cpu = bpf_get_smp_processor_id();
+	u32 times_index;
+	u64 start_time;
+
+	times_index = percpu_times_index[cpu & CPU_MASK] % NR_SLOTS;
+	start_time = bpf_ktime_get_ns();
+	bpf_loop(nr_loops, loop_lookup_callback, NULL, 0);
+	percpu_times[cpu & CPU_MASK][times_index] = bpf_ktime_get_ns() - start_time;
+	percpu_times_index[cpu & CPU_MASK] += 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_array_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_array_map.c
new file mode 100644
index 000000000000..19710cc0f250
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_array_map.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u64);
+} arraymap1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 10);
+	__type(key, __u64);
+	__type(value, __u32);
+} hashmap1 SEC(".maps");
+
+__u32 key_sum = 0;
+__u64 val_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_array_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	__u32 *hmap_val, *key = ctx->key;
+	__u64 *val = ctx->value;
+
+	if (key == (void *)0 || val == (void *)0)
+		return 0;
+
+	bpf_seq_write(ctx->meta->seq, key, sizeof(__u32));
+	bpf_seq_write(ctx->meta->seq, val, sizeof(__u64));
+	key_sum += *key;
+	val_sum += *val;
+
+	/* workaround - It's necessary to do this convoluted (val, key)
+	 * write into hashmap1, instead of simply doing
+	 *   bpf_map_update_elem(&hashmap1, val, key, BPF_ANY);
+	 * because key has MEM_RDONLY flag and bpf_map_update elem expects
+	 * types without this flag
+	 */
+	bpf_map_update_elem(&hashmap1, val, val, BPF_ANY);
+	hmap_val = bpf_map_lookup_elem(&hashmap1, val);
+	if (hmap_val)
+		*hmap_val = *key;
+
+	*val = *key;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c
new file mode 100644
index 000000000000..f47da665f7e0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_hash_map.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct key_t {
+	int a;
+	int b;
+	int c;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, struct key_t);
+	__type(value, __u64);
+} hashmap1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, __u64);
+	__type(value, __u64);
+} hashmap2 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, struct key_t);
+	__type(value, __u32);
+} hashmap3 SEC(".maps");
+
+/* will set before prog run */
+bool in_test_mode = 0;
+
+/* will collect results during prog run */
+__u32 key_sum_a = 0, key_sum_b = 0, key_sum_c = 0;
+__u64 val_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_hash_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	__u32 seq_num = ctx->meta->seq_num;
+	struct bpf_map *map = ctx->map;
+	struct key_t *key = ctx->key;
+	struct key_t tmp_key;
+	__u64 *val = ctx->value;
+	__u64 tmp_val = 0;
+	int ret;
+
+	if (in_test_mode) {
+		/* test mode is used by selftests to
+		 * test functionality of bpf_hash_map iter.
+		 *
+		 * the above hashmap1 will have correct size
+		 * and will be accepted, hashmap2 and hashmap3
+		 * should be rejected due to smaller key/value
+		 * size.
+		 */
+		if (key == (void *)0 || val == (void *)0)
+			return 0;
+
+		/* update the value and then delete the <key, value> pair.
+		 * it should not impact the existing 'val' which is still
+		 * accessible under rcu.
+		 */
+		__builtin_memcpy(&tmp_key, key, sizeof(struct key_t));
+		ret = bpf_map_update_elem(&hashmap1, &tmp_key, &tmp_val, 0);
+		if (ret)
+			return 0;
+		ret = bpf_map_delete_elem(&hashmap1, &tmp_key);
+		if (ret)
+			return 0;
+
+		key_sum_a += key->a;
+		key_sum_b += key->b;
+		key_sum_c += key->c;
+		val_sum += *val;
+		return 0;
+	}
+
+	/* non-test mode, the map is prepared with the
+	 * below bpftool command sequence:
+	 *   bpftool map create /sys/fs/bpf/m1 type hash \
+	 *   	key 12 value 8 entries 3 name map1
+	 *   bpftool map update id 77 key 0 0 0 1 0 0 0 0 0 0 0 1 \
+	 *   	value 0 0 0 1 0 0 0 1
+	 *   bpftool map update id 77 key 0 0 0 1 0 0 0 0 0 0 0 2 \
+	 *   	value 0 0 0 1 0 0 0 2
+	 * The bpftool iter command line:
+	 *   bpftool iter pin ./bpf_iter_bpf_hash_map.o /sys/fs/bpf/p1 \
+	 *   	map id 77
+	 * The below output will be:
+	 *   map dump starts
+	 *   77: (1000000 0 2000000) (200000001000000)
+	 *   77: (1000000 0 1000000) (100000001000000)
+	 *   map dump ends
+	 */
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "map dump starts\n");
+
+	if (key == (void *)0 || val == (void *)0) {
+		BPF_SEQ_PRINTF(seq, "map dump ends\n");
+		return 0;
+	}
+
+	BPF_SEQ_PRINTF(seq, "%d: (%x %d %x) (%llx)\n", map->id,
+		       key->a, key->b, key->c, *val);
+
+	return 0;
+}
+
+SEC("iter.s/bpf_map_elem")
+int sleepable_dummy_dump(struct bpf_iter__bpf_map_elem *ctx)
+{
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(ctx->meta->seq, "map dump starts\n");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_link.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_link.c
new file mode 100644
index 000000000000..7b69e1887705
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_link.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Red Hat, Inc. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("iter/bpf_link")
+int dump_bpf_link(struct bpf_iter__bpf_link *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct bpf_link *link = ctx->link;
+	int link_id;
+
+	if (!link)
+		return 0;
+
+	link_id = link->id;
+	bpf_seq_write(seq, &link_id, sizeof(link_id));
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c
new file mode 100644
index 000000000000..c868ffb8080f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_map.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("iter/bpf_map")
+int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	__u64 seq_num = ctx->meta->seq_num;
+	struct bpf_map *map = ctx->map;
+
+	if (map == (void *)0) {
+		BPF_SEQ_PRINTF(seq, "      %%%%%% END %%%%%%\n");
+		return 0;
+	}
+
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "      id   refcnt  usercnt  locked_vm\n");
+
+	BPF_SEQ_PRINTF(seq, "%8u %8ld %8ld %10lu\n", map->id, map->refcnt.counter,
+		       map->usercnt.counter,
+		       0LLU);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_array_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_array_map.c
new file mode 100644
index 000000000000..9fdea8cd4c6f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_array_map.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u32);
+} arraymap1 SEC(".maps");
+
+/* will set before prog run */
+volatile const __u32 num_cpus = 0;
+
+__u32 key_sum = 0, val_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_percpu_array_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	__u32 *key = ctx->key;
+	void *pptr = ctx->value;
+	__u32 step;
+	int i;
+
+	if (key == (void *)0 || pptr == (void *)0)
+		return 0;
+
+	key_sum += *key;
+
+	step = 8;
+	for (i = 0; i < num_cpus; i++) {
+		val_sum += *(__u32 *)pptr;
+		pptr += step;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_hash_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_hash_map.c
new file mode 100644
index 000000000000..aa529f76c7fc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_percpu_hash_map.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct key_t {
+	int a;
+	int b;
+	int c;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 3);
+	__type(key, struct key_t);
+	__type(value, __u32);
+} hashmap1 SEC(".maps");
+
+/* will set before prog run */
+volatile const __s32 num_cpus = 0;
+
+/* will collect results during prog run */
+__u32 key_sum_a = 0, key_sum_b = 0, key_sum_c = 0;
+__u32 val_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_percpu_hash_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	struct key_t *key = ctx->key;
+	void *pptr = ctx->value;
+	__u32 step;
+	int i;
+
+	if (key == (void *)0 || pptr == (void *)0)
+		return 0;
+
+	key_sum_a += key->a;
+	key_sum_b += key->b;
+	key_sum_c += key->c;
+
+	step = 8;
+	for (i = 0; i < num_cpus; i++) {
+		val_sum += *(__u32 *)pptr;
+		pptr += step;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_helpers.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_helpers.c
new file mode 100644
index 000000000000..e88dab196e0f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_helpers.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Google LLC. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_stg_map SEC(".maps");
+
+SEC("iter/bpf_sk_storage_map")
+int delete_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx)
+{
+	if (ctx->sk)
+		bpf_sk_storage_delete(&sk_stg_map, ctx->sk);
+
+	return 0;
+}
+
+SEC("iter/task_file")
+int fill_socket_owner(struct bpf_iter__task_file *ctx)
+{
+	struct task_struct *task = ctx->task;
+	struct file *file = ctx->file;
+	struct socket *sock;
+	int *sock_tgid;
+
+	if (!task || !file)
+		return 0;
+
+	sock = bpf_sock_from_file(file);
+	if (!sock)
+		return 0;
+
+	sock_tgid = bpf_sk_storage_get(&sk_stg_map, sock->sk, 0, 0);
+	if (!sock_tgid)
+		return 0;
+
+	*sock_tgid = task->tgid;
+
+	return 0;
+}
+
+SEC("iter/tcp")
+int negate_socket_local_storage(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = ctx->sk_common;
+	int *sock_tgid;
+
+	if (!sk_common)
+		return 0;
+
+	sock_tgid = bpf_sk_storage_get(&sk_stg_map, sk_common, 0, 0);
+	if (!sock_tgid)
+		return 0;
+
+	*sock_tgid = -*sock_tgid;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c
new file mode 100644
index 000000000000..eb9642923e1c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_bpf_sk_storage_map.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_stg_map SEC(".maps");
+
+__u32 val_sum = 0;
+__u32 ipv6_sk_count = 0;
+__u32 to_add_val = 0;
+
+SEC("iter/bpf_sk_storage_map")
+int rw_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx)
+{
+	struct sock *sk = ctx->sk;
+	__u32 *val = ctx->value;
+
+	if (sk == NULL || val == NULL)
+		return 0;
+
+	if (sk->sk_family == AF_INET6)
+		ipv6_sk_count++;
+
+	val_sum += *val;
+
+	*val += to_add_val;
+
+	return 0;
+}
+
+SEC("iter/bpf_sk_storage_map")
+int oob_write_bpf_sk_storage_map(struct bpf_iter__bpf_sk_storage_map *ctx)
+{
+	struct sock *sk = ctx->sk;
+	__u32 *val = ctx->value;
+
+	if (sk == NULL || val == NULL)
+		return 0;
+
+	*(val + 1) = 0xdeadbeef;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
new file mode 100644
index 000000000000..73a5cf3ba3d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_ipv6_route.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+extern bool CONFIG_IPV6_SUBTREES __kconfig __weak;
+
+SEC("iter/ipv6_route")
+int dump_ipv6_route(struct bpf_iter__ipv6_route *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct fib6_info *rt = ctx->rt;
+	const struct net_device *dev;
+	struct fib6_nh *fib6_nh;
+	unsigned int flags;
+	struct nexthop *nh;
+
+	if (rt == (void *)0)
+		return 0;
+
+	fib6_nh = &rt->fib6_nh[0];
+	flags = rt->fib6_flags;
+
+	/* FIXME: nexthop_is_multipath is not handled here. */
+	nh = rt->nh;
+	if (rt->nh)
+		fib6_nh = &nh->nh_info->fib6_nh;
+
+	BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_dst.addr, rt->fib6_dst.plen);
+
+	if (CONFIG_IPV6_SUBTREES)
+		BPF_SEQ_PRINTF(seq, "%pi6 %02x ", &rt->fib6_src.addr,
+			       rt->fib6_src.plen);
+	else
+		BPF_SEQ_PRINTF(seq, "00000000000000000000000000000000 00 ");
+
+	if (fib6_nh->fib_nh_gw_family) {
+		flags |= RTF_GATEWAY;
+		BPF_SEQ_PRINTF(seq, "%pi6 ", &fib6_nh->fib_nh_gw6);
+	} else {
+		BPF_SEQ_PRINTF(seq, "00000000000000000000000000000000 ");
+	}
+
+	dev = fib6_nh->fib_nh_dev;
+	if (dev)
+		BPF_SEQ_PRINTF(seq, "%08x %08x %08x %08x %8s\n", rt->fib6_metric,
+			       rt->fib6_ref.refs.counter, 0, flags, dev->name);
+	else
+		BPF_SEQ_PRINTF(seq, "%08x %08x %08x %08x\n", rt->fib6_metric,
+			       rt->fib6_ref.refs.counter, 0, flags);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c b/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c
new file mode 100644
index 000000000000..3e725b1fce37
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+unsigned long last_sym_value = 0;
+
+static inline char to_lower(char c)
+{
+	if (c >= 'A' && c <= 'Z')
+		c += ('a' - 'A');
+	return c;
+}
+
+static inline char to_upper(char c)
+{
+	if (c >= 'a' && c <= 'z')
+		c -= ('a' - 'A');
+	return c;
+}
+
+/* Dump symbols with max size; the latter is calculated by caching symbol N value
+ * and when iterating on symbol N+1, we can print max size of symbol N via
+ * address of N+1 - address of N.
+ */
+SEC("iter/ksym")
+int dump_ksym(struct bpf_iter__ksym *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct kallsym_iter *iter = ctx->ksym;
+	__u32 seq_num = ctx->meta->seq_num;
+	unsigned long value;
+	char type;
+
+	if (!iter)
+		return 0;
+
+	if (seq_num == 0) {
+		BPF_SEQ_PRINTF(seq, "ADDR TYPE NAME MODULE_NAME KIND MAX_SIZE\n");
+		return 0;
+	}
+	if (last_sym_value)
+		BPF_SEQ_PRINTF(seq, "0x%x\n", iter->value - last_sym_value);
+	else
+		BPF_SEQ_PRINTF(seq, "\n");
+
+	value = iter->show_value ? iter->value : 0;
+
+	last_sym_value = value;
+
+	type = iter->type;
+
+	if (iter->module_name[0]) {
+		type = iter->exported ? to_upper(type) : to_lower(type);
+		BPF_SEQ_PRINTF(seq, "0x%llx %c %s [ %s ] ",
+			       value, type, iter->name, iter->module_name);
+	} else {
+		BPF_SEQ_PRINTF(seq, "0x%llx %c %s ", value, type, iter->name);
+	}
+	if (!iter->pos_mod_end || iter->pos_mod_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "MOD ");
+	else if (!iter->pos_ftrace_mod_end || iter->pos_ftrace_mod_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "FTRACE_MOD ");
+	else if (!iter->pos_bpf_end || iter->pos_bpf_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "BPF ");
+	else
+		BPF_SEQ_PRINTF(seq, "KPROBE ");
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_map_elem.c b/tools/testing/selftests/bpf/progs/bpf_iter_map_elem.c
new file mode 100644
index 000000000000..2f20485e0de3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_map_elem.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 value_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_map_values(struct bpf_iter__bpf_map_elem *ctx)
+{
+	__u32 value = 0;
+
+	if (ctx->value == (void *)0)
+		return 0;
+
+	bpf_probe_read_kernel(&value, sizeof(value), ctx->value);
+	value_sum += value;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
new file mode 100644
index 000000000000..00b2ceae81fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_netlink.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+static __attribute__((noinline)) struct inode *SOCK_INODE(struct socket *socket)
+{
+	return &container_of(socket, struct socket_alloc, socket)->vfs_inode;
+}
+
+SEC("iter/netlink")
+int dump_netlink(struct bpf_iter__netlink *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct netlink_sock *nlk = ctx->sk;
+	unsigned long group, ino;
+	struct inode *inode;
+	struct socket *sk;
+	struct sock *s;
+
+	if (nlk == (void *)0)
+		return 0;
+
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "sk               Eth Pid        Groups   "
+				    "Rmem     Wmem     Dump  Locks    Drops    "
+				    "Inode\n");
+
+	s = &nlk->sk;
+	BPF_SEQ_PRINTF(seq, "%pK %-3d ", s, s->sk_protocol);
+
+	if (!nlk->groups)  {
+		group = 0;
+	} else {
+		/* FIXME: temporary use bpf_probe_read_kernel here, needs
+		 * verifier support to do direct access.
+		 */
+		bpf_probe_read_kernel(&group, sizeof(group), &nlk->groups[0]);
+	}
+	BPF_SEQ_PRINTF(seq, "%-10u %08x %-8d %-8d %-5d %-8d ",
+		       nlk->portid, (u32)group,
+		       s->sk_rmem_alloc.counter,
+		       s->sk_wmem_alloc.refs.counter - 1,
+		       nlk->cb_running, s->sk_refcnt.refs.counter);
+
+	sk = s->sk_socket;
+	if (!sk) {
+		ino = 0;
+	} else {
+		/* FIXME: container_of inside SOCK_INODE has a forced
+		 * type conversion, and direct access cannot be used
+		 * with current verifier.
+		 */
+		inode = SOCK_INODE(sk);
+		bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	}
+	BPF_SEQ_PRINTF(seq, "%-8u %-8lu\n", s->sk_drops.counter, ino);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt.c b/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt.c
new file mode 100644
index 000000000000..a8aa5a71d846
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define bpf_tcp_sk(skc)	({				\
+	struct sock_common *_skc = skc;			\
+	sk = NULL;					\
+	tp = NULL;					\
+	if (_skc) {					\
+		tp = bpf_skc_to_tcp_sock(_skc);		\
+		sk = (struct sock *)tp;			\
+	}						\
+	tp;						\
+})
+
+unsigned short reuse_listen_hport = 0;
+unsigned short listen_hport = 0;
+const char cubic_cc[] = "bpf_cubic";
+char dctcp_cc[TCP_CA_NAME_MAX] = "bpf_dctcp";
+bool random_retry = false;
+
+
+SEC("iter/tcp")
+int change_tcp_cc(struct bpf_iter__tcp *ctx)
+{
+	char cur_cc[TCP_CA_NAME_MAX];
+	struct tcp_sock *tp;
+	struct sock *sk;
+
+	if (!bpf_tcp_sk(ctx->sk_common))
+		return 0;
+
+	if (sk->sk_family != AF_INET6 ||
+	    (sk->sk_state != TCP_LISTEN &&
+	     sk->sk_state != TCP_ESTABLISHED) ||
+	    (sk->sk_num != reuse_listen_hport &&
+	     sk->sk_num != listen_hport &&
+	     bpf_ntohs(sk->sk_dport) != listen_hport))
+		return 0;
+
+	if (bpf_getsockopt(tp, SOL_TCP, TCP_CONGESTION,
+			   cur_cc, sizeof(cur_cc)))
+		return 0;
+
+	if (bpf_strncmp(cur_cc, TCP_CA_NAME_MAX, cubic_cc))
+		return 0;
+
+	if (random_retry && bpf_get_prandom_u32() % 4 == 1)
+		return 1;
+
+	bpf_setsockopt(tp, SOL_TCP, TCP_CONGESTION, dctcp_cc, sizeof(dctcp_cc));
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt_unix.c b/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt_unix.c
new file mode 100644
index 000000000000..d92631ec6161
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_setsockopt_unix.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <limits.h>
+
+#define AUTOBIND_LEN 6
+char sun_path[AUTOBIND_LEN];
+
+#define NR_CASES 5
+int sndbuf_setsockopt[NR_CASES] = {-1, 0, 8192, INT_MAX / 2, INT_MAX};
+int sndbuf_getsockopt[NR_CASES] = {-1, -1, -1, -1, -1};
+int sndbuf_getsockopt_expected[NR_CASES];
+
+static inline int cmpname(struct unix_sock *unix_sk)
+{
+	int i;
+
+	for (i = 0; i < AUTOBIND_LEN; i++) {
+		if (unix_sk->addr->name->sun_path[i] != sun_path[i])
+			return -1;
+	}
+
+	return 0;
+}
+
+SEC("iter/unix")
+int change_sndbuf(struct bpf_iter__unix *ctx)
+{
+	struct unix_sock *unix_sk = ctx->unix_sk;
+	int i, err;
+
+	if (!unix_sk || !unix_sk->addr)
+		return 0;
+
+	if (unix_sk->addr->name->sun_path[0])
+		return 0;
+
+	if (cmpname(unix_sk))
+		return 0;
+
+	for (i = 0; i < NR_CASES; i++) {
+		err = bpf_setsockopt(unix_sk, SOL_SOCKET, SO_SNDBUF,
+				     &sndbuf_setsockopt[i],
+				     sizeof(sndbuf_setsockopt[i]));
+		if (err)
+			break;
+
+		err = bpf_getsockopt(unix_sk, SOL_SOCKET, SO_SNDBUF,
+				     &sndbuf_getsockopt[i],
+				     sizeof(sndbuf_getsockopt[i]));
+		if (err)
+			break;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c
new file mode 100644
index 000000000000..317fe49760cc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_sockmap.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Cloudflare */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <errno.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 64);
+	__type(key, __u32);
+	__type(value, __u64);
+} sockmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 64);
+	__type(key, __u32);
+	__type(value, __u64);
+} sockhash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 64);
+	__type(key, __u32);
+	__type(value, __u64);
+} dst SEC(".maps");
+
+__u32 elems = 0;
+__u32 socks = 0;
+
+SEC("iter/sockmap")
+int copy(struct bpf_iter__sockmap *ctx)
+{
+	struct sock *sk = ctx->sk;
+	__u32 tmp, *key = ctx->key;
+	int ret;
+
+	if (!key)
+		return 0;
+
+	elems++;
+
+	/* We need a temporary buffer on the stack, since the verifier doesn't
+	 * let us use the pointer from the context as an argument to the helper.
+	 */
+	tmp = *key;
+
+	if (sk) {
+		socks++;
+		return bpf_map_update_elem(&dst, &tmp, sk, 0) != 0;
+	}
+
+	ret = bpf_map_delete_elem(&dst, &tmp);
+	return ret && ret != -ENOENT;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c
new file mode 100644
index 000000000000..ef2f7c8d9373
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_btf.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Oracle and/or its affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+#include <errno.h>
+
+char _license[] SEC("license") = "GPL";
+
+long tasks = 0;
+long seq_err = 0;
+bool skip = false;
+
+SEC("iter/task")
+int dump_task_struct(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	static struct btf_ptr ptr = { };
+	long ret;
+
+#if __has_builtin(__builtin_btf_type_id)
+	ptr.type_id = bpf_core_type_id_kernel(struct task_struct);
+	ptr.ptr = task;
+
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "Raw BTF task\n");
+
+	ret = bpf_seq_printf_btf(seq, &ptr, sizeof(ptr), 0);
+	switch (ret) {
+	case 0:
+		tasks++;
+		break;
+	case -ERANGE:
+		/* NULL task or task->fs, don't count it as an error. */
+		break;
+	case -E2BIG:
+		return 1;
+	default:
+		seq_err = ret;
+		break;
+	}
+#else
+	skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
new file mode 100644
index 000000000000..959a8d899eaf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_file.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+int count = 0;
+int tgid = 0;
+int last_tgid = 0;
+int unique_tgid_count = 0;
+
+SEC("iter/task_file")
+int dump_task_file(struct bpf_iter__task_file *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	struct file *file = ctx->file;
+	__u32 fd = ctx->fd;
+
+	if (task == (void *)0 || file == (void *)0)
+		return 0;
+
+	if (ctx->meta->seq_num == 0) {
+		count = 0;
+		BPF_SEQ_PRINTF(seq, "    tgid      gid       fd      file\n");
+	}
+
+	if (tgid == task->tgid && task->tgid != task->pid)
+		count++;
+
+	if (last_tgid != task->tgid) {
+		last_tgid = task->tgid;
+		unique_tgid_count++;
+	}
+
+	BPF_SEQ_PRINTF(seq, "%8d %8d %8d %lx\n", task->tgid, task->pid, fd,
+		       (long)file->f_op);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c
new file mode 100644
index 000000000000..f5a309455490
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_stack.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define MAX_STACK_TRACE_DEPTH   64
+unsigned long entries[MAX_STACK_TRACE_DEPTH] = {};
+#define SIZE_OF_ULONG (sizeof(unsigned long))
+
+SEC("iter/task")
+int dump_task_stack(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	long i, retlen;
+
+	if (task == (void *)0)
+		return 0;
+
+	retlen = bpf_get_task_stack(task, entries,
+				    MAX_STACK_TRACE_DEPTH * SIZE_OF_ULONG, 0);
+	if (retlen < 0)
+		return 0;
+
+	BPF_SEQ_PRINTF(seq, "pid: %8u num_entries: %8u\n", task->pid,
+		       retlen / SIZE_OF_ULONG);
+	for (i = 0; i < MAX_STACK_TRACE_DEPTH; i++) {
+		if (retlen > i * SIZE_OF_ULONG)
+			BPF_SEQ_PRINTF(seq, "[<0>] %pB\n", (void *)entries[i]);
+	}
+	BPF_SEQ_PRINTF(seq, "\n");
+
+	return 0;
+}
+
+int num_user_stacks = 0;
+
+SEC("iter/task")
+int get_task_user_stacks(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	uint64_t buf_sz = 0;
+	int64_t res;
+
+	if (task == (void *)0)
+		return 0;
+
+	res = bpf_get_task_stack(task, entries,
+			MAX_STACK_TRACE_DEPTH * SIZE_OF_ULONG, BPF_F_USER_STACK);
+	if (res <= 0)
+		return 0;
+
+	/* Only one task, the current one, should succeed */
+	++num_user_stacks;
+
+	buf_sz += res;
+
+	/* If the verifier doesn't refine bpf_get_task_stack res, and instead
+	 * assumes res is entirely unknown, this program will fail to load as
+	 * the verifier will believe that max buf_sz value allows reading
+	 * past the end of entries in bpf_seq_write call
+	 */
+	bpf_seq_write(seq, &entries, buf_sz);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c
new file mode 100644
index 000000000000..d64ba7ddaed5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_task_vmas.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Copied from mm.h */
+#define VM_READ		0x00000001
+#define VM_WRITE	0x00000002
+#define VM_EXEC		0x00000004
+#define VM_MAYSHARE	0x00000080
+
+/* Copied from kdev_t.h */
+#define MINORBITS	20
+#define MINORMASK	((1U << MINORBITS) - 1)
+#define MAJOR(dev)	((unsigned int) ((dev) >> MINORBITS))
+#define MINOR(dev)	((unsigned int) ((dev) & MINORMASK))
+
+#define D_PATH_BUF_SIZE 1024
+char d_path_buf[D_PATH_BUF_SIZE] = {};
+__u32 pid = 0;
+__u32 one_task = 0;
+__u32 one_task_error = 0;
+
+SEC("iter/task_vma") int proc_maps(struct bpf_iter__task_vma *ctx)
+{
+	struct vm_area_struct *vma = ctx->vma;
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	struct file *file;
+	char perm_str[] = "----";
+
+	if (task == (void *)0 || vma == (void *)0)
+		return 0;
+
+	file = vma->vm_file;
+	if (task->tgid != (pid_t)pid) {
+		if (one_task)
+			one_task_error = 1;
+		return 0;
+	}
+	perm_str[0] = (vma->vm_flags & VM_READ) ? 'r' : '-';
+	perm_str[1] = (vma->vm_flags & VM_WRITE) ? 'w' : '-';
+	perm_str[2] = (vma->vm_flags & VM_EXEC) ? 'x' : '-';
+	perm_str[3] = (vma->vm_flags & VM_MAYSHARE) ? 's' : 'p';
+	BPF_SEQ_PRINTF(seq, "%08llx-%08llx %s ", vma->vm_start, vma->vm_end, perm_str);
+
+	if (file) {
+		__u32 dev = file->f_inode->i_sb->s_dev;
+
+		bpf_d_path(&file->f_path, d_path_buf, D_PATH_BUF_SIZE);
+
+		BPF_SEQ_PRINTF(seq, "%08llx ", vma->vm_pgoff << 12);
+		BPF_SEQ_PRINTF(seq, "%02x:%02x %u", MAJOR(dev), MINOR(dev),
+			       file->f_inode->i_ino);
+		BPF_SEQ_PRINTF(seq, "\t%s\n", d_path_buf);
+	} else {
+		BPF_SEQ_PRINTF(seq, "%08llx 00:00 0\n", 0ULL);
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tasks.c b/tools/testing/selftests/bpf/progs/bpf_iter_tasks.c
new file mode 100644
index 000000000000..966ee5a7b066
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_tasks.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+uint32_t tid = 0;
+int num_unknown_tid = 0;
+int num_known_tid = 0;
+void *user_ptr = 0;
+void *user_ptr_long = 0;
+uint32_t pid = 0;
+
+static char big_str1[5000];
+static char big_str2[5005];
+static char big_str3[4996];
+
+SEC("iter/task")
+int dump_task(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	static char info[] = "    === END ===";
+
+	if (task == (void *)0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	if (task->pid != (pid_t)tid)
+		num_unknown_tid++;
+	else
+		num_known_tid++;
+
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "    tgid      gid\n");
+
+	BPF_SEQ_PRINTF(seq, "%8d %8d\n", task->tgid, task->pid);
+	return 0;
+}
+
+int num_expected_failure_copy_from_user_task = 0;
+int num_expected_failure_copy_from_user_task_str = 0;
+int num_success_copy_from_user_task = 0;
+int num_success_copy_from_user_task_str = 0;
+
+SEC("iter.s/task")
+int dump_task_sleepable(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	static const char info[] = "    === END ===";
+	struct pt_regs *regs;
+	char task_str1[10] = "aaaaaaaaaa";
+	char task_str2[10], task_str3[10];
+	char task_str4[20] = "aaaaaaaaaaaaaaaaaaaa";
+	void *ptr;
+	uint32_t user_data = 0;
+	int ret;
+
+	if (task == (void *)0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Read an invalid pointer and ensure we get an error */
+	ptr = NULL;
+	ret = bpf_copy_from_user_task(&user_data, sizeof(uint32_t), ptr, task, 0);
+	if (ret) {
+		++num_expected_failure_copy_from_user_task;
+	} else {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Try to read the contents of the task's instruction pointer from the
+	 * remote task's address space.
+	 */
+	regs = (struct pt_regs *)bpf_task_pt_regs(task);
+	if (regs == (void *)0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+	ptr = (void *)PT_REGS_IP(regs);
+
+	ret = bpf_copy_from_user_task(&user_data, sizeof(uint32_t), ptr, task, 0);
+	if (ret) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	++num_success_copy_from_user_task;
+
+	/* Read an invalid pointer and ensure we get an error */
+	ptr = NULL;
+	ret = bpf_copy_from_user_task_str((char *)task_str1, sizeof(task_str1), ptr, task, 0);
+	if (ret >= 0 || task_str1[9] != 'a' || task_str1[0] != '\0') {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Read an invalid pointer and ensure we get error with pad zeros flag */
+	ptr = NULL;
+	ret = bpf_copy_from_user_task_str((char *)task_str1, sizeof(task_str1),
+					  ptr, task, BPF_F_PAD_ZEROS);
+	if (ret >= 0 || task_str1[9] != '\0' || task_str1[0] != '\0') {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	++num_expected_failure_copy_from_user_task_str;
+
+	/* Same length as the string */
+	ret = bpf_copy_from_user_task_str((char *)task_str2, 10, user_ptr, task, 0);
+	/* only need to do the task pid check once */
+	if (bpf_strncmp(task_str2, 10, "test_data\0") != 0 || ret != 10 || task->tgid != pid) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Shorter length than the string */
+	ret = bpf_copy_from_user_task_str((char *)task_str3, 2, user_ptr, task, 0);
+	if (bpf_strncmp(task_str3, 2, "t\0") != 0 || ret != 2) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Longer length than the string */
+	ret = bpf_copy_from_user_task_str((char *)task_str4, 20, user_ptr, task, 0);
+	if (bpf_strncmp(task_str4, 10, "test_data\0") != 0 || ret != 10
+	    || task_str4[sizeof(task_str4) - 1] != 'a') {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Longer length than the string with pad zeros flag */
+	ret = bpf_copy_from_user_task_str((char *)task_str4, 20, user_ptr, task, BPF_F_PAD_ZEROS);
+	if (bpf_strncmp(task_str4, 10, "test_data\0") != 0 || ret != 10
+	    || task_str4[sizeof(task_str4) - 1] != '\0') {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Longer length than the string past a page boundary */
+	ret = bpf_copy_from_user_task_str(big_str1, 5000, user_ptr, task, 0);
+	if (bpf_strncmp(big_str1, 10, "test_data\0") != 0 || ret != 10) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* String that crosses a page boundary */
+	ret = bpf_copy_from_user_task_str(big_str1, 5000, user_ptr_long, task, BPF_F_PAD_ZEROS);
+	if (bpf_strncmp(big_str1, 4, "baba") != 0 || ret != 5000
+	    || bpf_strncmp(big_str1 + 4996, 4, "bab\0") != 0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	for (int i = 0; i < 4999; ++i) {
+		if (i % 2 == 0) {
+			if (big_str1[i] != 'b') {
+				BPF_SEQ_PRINTF(seq, "%s\n", info);
+				return 0;
+			}
+		} else {
+			if (big_str1[i] != 'a') {
+				BPF_SEQ_PRINTF(seq, "%s\n", info);
+				return 0;
+			}
+		}
+	}
+
+	/* Longer length than the string that crosses a page boundary */
+	ret = bpf_copy_from_user_task_str(big_str2, 5005, user_ptr_long, task, BPF_F_PAD_ZEROS);
+	if (bpf_strncmp(big_str2, 4, "baba") != 0 || ret != 5000
+	    || bpf_strncmp(big_str2 + 4996, 5, "bab\0\0") != 0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	/* Shorter length than the string that crosses a page boundary */
+	ret = bpf_copy_from_user_task_str(big_str3, 4996, user_ptr_long, task, 0);
+	if (bpf_strncmp(big_str3, 4, "baba") != 0 || ret != 4996
+	    || bpf_strncmp(big_str3 + 4992, 4, "bab\0") != 0) {
+		BPF_SEQ_PRINTF(seq, "%s\n", info);
+		return 0;
+	}
+
+	++num_success_copy_from_user_task_str;
+
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "    tgid      gid     data\n");
+
+	BPF_SEQ_PRINTF(seq, "%8d %8d %8d\n", task->tgid, task->pid, user_data);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c
new file mode 100644
index 000000000000..b1e509b231cd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp4.c
@@ -0,0 +1,233 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+static int hlist_unhashed_lockless(const struct hlist_node *h)
+{
+        return !(h->pprev);
+}
+
+static int timer_pending(const struct timer_list * timer)
+{
+	return !hlist_unhashed_lockless(&timer->entry);
+}
+
+extern unsigned CONFIG_HZ __kconfig;
+
+#define USER_HZ		100
+#define NSEC_PER_SEC	1000000000ULL
+static clock_t jiffies_to_clock_t(unsigned long x)
+{
+	/* The implementation here tailored to a particular
+	 * setting of USER_HZ.
+	 */
+	u64 tick_nsec = (NSEC_PER_SEC + CONFIG_HZ/2) / CONFIG_HZ;
+	u64 user_hz_nsec = NSEC_PER_SEC / USER_HZ;
+
+	if ((tick_nsec % user_hz_nsec) == 0) {
+		if (CONFIG_HZ < USER_HZ)
+			return x * (USER_HZ / CONFIG_HZ);
+		else
+			return x / (CONFIG_HZ / USER_HZ);
+	}
+	return x * tick_nsec/user_hz_nsec;
+}
+
+static clock_t jiffies_delta_to_clock_t(long delta)
+{
+	if (delta <= 0)
+		return 0;
+
+	return jiffies_to_clock_t(delta);
+}
+
+static long sock_i_ino(const struct sock *sk)
+{
+	const struct socket *sk_socket = sk->sk_socket;
+	const struct inode *inode;
+	unsigned long ino;
+
+	if (!sk_socket)
+		return 0;
+
+	inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
+	bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	return ino;
+}
+
+static bool
+inet_csk_in_pingpong_mode(const struct inet_connection_sock *icsk)
+{
+	return icsk->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;
+}
+
+static bool tcp_in_initial_slowstart(const struct tcp_sock *tcp)
+{
+	return tcp->snd_ssthresh >= TCP_INFINITE_SSTHRESH;
+}
+
+static int dump_tcp_sock(struct seq_file *seq, struct tcp_sock *tp,
+			 uid_t uid, __u32 seq_num)
+{
+	const struct inet_connection_sock *icsk;
+	const struct fastopen_queue *fastopenq;
+	const struct inet_sock *inet;
+	unsigned long timer_expires;
+	const struct sock *sp;
+	__u16 destp, srcp;
+	__be32 dest, src;
+	int timer_active;
+	int rx_queue;
+	int state;
+
+	icsk = &tp->inet_conn;
+	inet = &icsk->icsk_inet;
+	sp = &inet->sk;
+	fastopenq = &icsk->icsk_accept_queue.fastopenq;
+
+	dest = inet->inet_daddr;
+	src = inet->inet_rcv_saddr;
+	destp = bpf_ntohs(inet->inet_dport);
+	srcp = bpf_ntohs(inet->inet_sport);
+
+	if (icsk->icsk_pending == ICSK_TIME_RETRANS ||
+	    icsk->icsk_pending == ICSK_TIME_REO_TIMEOUT ||
+	    icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {
+		timer_active = 1;
+		timer_expires = sp->tcp_retransmit_timer.expires;
+	} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
+		timer_active = 4;
+		timer_expires = sp->tcp_retransmit_timer.expires;
+	} else if (timer_pending(&icsk->icsk_keepalive_timer)) {
+		timer_active = 2;
+		timer_expires = icsk->icsk_keepalive_timer.expires;
+	} else {
+		timer_active = 0;
+		timer_expires = bpf_jiffies64();
+	}
+
+	state = sp->sk_state;
+	if (state == TCP_LISTEN) {
+		rx_queue = sp->sk_ack_backlog;
+	} else {
+		rx_queue = tp->rcv_nxt - tp->copied_seq;
+		if (rx_queue < 0)
+			rx_queue = 0;
+	}
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X:%04X %08X:%04X ",
+		       seq_num, src, srcp, dest, destp);
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d ",
+		       state,
+		       tp->write_seq - tp->snd_una, rx_queue,
+		       timer_active,
+		       jiffies_delta_to_clock_t(timer_expires - bpf_jiffies64()),
+		       icsk->icsk_retransmits, uid,
+		       icsk->icsk_probes_out,
+		       sock_i_ino(sp),
+		       sp->sk_refcnt.refs.counter);
+	BPF_SEQ_PRINTF(seq, "%pK %lu %lu %u %u %d\n",
+		       tp,
+		       jiffies_to_clock_t(icsk->icsk_rto),
+		       jiffies_to_clock_t(icsk->icsk_ack.ato),
+		       (icsk->icsk_ack.quick << 1) | inet_csk_in_pingpong_mode(icsk),
+		       tp->snd_cwnd,
+		       state == TCP_LISTEN ? fastopenq->max_qlen
+				: (tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh)
+		      );
+
+	return 0;
+}
+
+static int dump_tw_sock(struct seq_file *seq, struct tcp_timewait_sock *ttw,
+			uid_t uid, __u32 seq_num)
+{
+	struct inet_timewait_sock *tw = &ttw->tw_sk;
+	__u16 destp, srcp;
+	__be32 dest, src;
+	long delta;
+
+	delta = tw->tw_timer.expires - bpf_jiffies64();
+	dest = tw->tw_daddr;
+	src  = tw->tw_rcv_saddr;
+	destp = bpf_ntohs(tw->tw_dport);
+	srcp  = bpf_ntohs(tw->tw_sport);
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X:%04X %08X:%04X ",
+		       seq_num, src, srcp, dest, destp);
+
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n",
+		       tw->tw_substate, 0, 0,
+		       3, jiffies_delta_to_clock_t(delta), 0, 0, 0, 0,
+		       tw->tw_refcnt.refs.counter, tw);
+
+	return 0;
+}
+
+static int dump_req_sock(struct seq_file *seq, struct tcp_request_sock *treq,
+			 uid_t uid, __u32 seq_num)
+{
+	struct inet_request_sock *irsk = &treq->req;
+	struct request_sock *req = &irsk->req;
+	long ttd;
+
+	ttd = req->rsk_timer.expires - bpf_jiffies64();
+
+	if (ttd < 0)
+		ttd = 0;
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X:%04X %08X:%04X ",
+		       seq_num, irsk->ir_loc_addr,
+		       irsk->ir_num, irsk->ir_rmt_addr,
+		       bpf_ntohs(irsk->ir_rmt_port));
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n",
+		       TCP_SYN_RECV, 0, 0, 1, jiffies_to_clock_t(ttd),
+		       req->num_timeout, uid, 0, 0, 0, req);
+
+	return 0;
+}
+
+SEC("iter/tcp")
+int dump_tcp4(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = ctx->sk_common;
+	struct seq_file *seq = ctx->meta->seq;
+	struct tcp_timewait_sock *tw;
+	struct tcp_request_sock *req;
+	struct tcp_sock *tp;
+	uid_t uid = ctx->uid;
+	__u32 seq_num;
+
+	if (sk_common == (void *)0)
+		return 0;
+
+	seq_num = ctx->meta->seq_num;
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "  sl  "
+				    "local_address "
+				    "rem_address   "
+				    "st tx_queue rx_queue tr tm->when retrnsmt"
+				    "   uid  timeout inode\n");
+
+	if (sk_common->skc_family != AF_INET)
+		return 0;
+
+	tp = bpf_skc_to_tcp_sock(sk_common);
+	if (tp)
+		return dump_tcp_sock(seq, tp, uid, seq_num);
+
+	tw = bpf_skc_to_tcp_timewait_sock(sk_common);
+	if (tw)
+		return dump_tw_sock(seq, tw, uid, seq_num);
+
+	req = bpf_skc_to_tcp_request_sock(sk_common);
+	if (req)
+		return dump_req_sock(seq, req, uid, seq_num);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c b/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c
new file mode 100644
index 000000000000..dbc7166aee91
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_tcp6.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+static int hlist_unhashed_lockless(const struct hlist_node *h)
+{
+        return !(h->pprev);
+}
+
+static int timer_pending(const struct timer_list * timer)
+{
+	return !hlist_unhashed_lockless(&timer->entry);
+}
+
+extern unsigned CONFIG_HZ __kconfig;
+
+#define USER_HZ		100
+#define NSEC_PER_SEC	1000000000ULL
+static clock_t jiffies_to_clock_t(unsigned long x)
+{
+	/* The implementation here tailored to a particular
+	 * setting of USER_HZ.
+	 */
+	u64 tick_nsec = (NSEC_PER_SEC + CONFIG_HZ/2) / CONFIG_HZ;
+	u64 user_hz_nsec = NSEC_PER_SEC / USER_HZ;
+
+	if ((tick_nsec % user_hz_nsec) == 0) {
+		if (CONFIG_HZ < USER_HZ)
+			return x * (USER_HZ / CONFIG_HZ);
+		else
+			return x / (CONFIG_HZ / USER_HZ);
+	}
+	return x * tick_nsec/user_hz_nsec;
+}
+
+static clock_t jiffies_delta_to_clock_t(long delta)
+{
+	if (delta <= 0)
+		return 0;
+
+	return jiffies_to_clock_t(delta);
+}
+
+static long sock_i_ino(const struct sock *sk)
+{
+	const struct socket *sk_socket = sk->sk_socket;
+	const struct inode *inode;
+	unsigned long ino;
+
+	if (!sk_socket)
+		return 0;
+
+	inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
+	bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	return ino;
+}
+
+static bool
+inet_csk_in_pingpong_mode(const struct inet_connection_sock *icsk)
+{
+	return icsk->icsk_ack.pingpong >= TCP_PINGPONG_THRESH;
+}
+
+static bool tcp_in_initial_slowstart(const struct tcp_sock *tcp)
+{
+	return tcp->snd_ssthresh >= TCP_INFINITE_SSTHRESH;
+}
+
+static int dump_tcp6_sock(struct seq_file *seq, struct tcp6_sock *tp,
+			 uid_t uid, __u32 seq_num)
+{
+	const struct inet_connection_sock *icsk;
+	const struct fastopen_queue *fastopenq;
+	const struct in6_addr *dest, *src;
+	const struct inet_sock *inet;
+	unsigned long timer_expires;
+	const struct sock *sp;
+	__u16 destp, srcp;
+	int timer_active;
+	int rx_queue;
+	int state;
+
+	icsk = &tp->tcp.inet_conn;
+	inet = &icsk->icsk_inet;
+	sp = &inet->sk;
+	fastopenq = &icsk->icsk_accept_queue.fastopenq;
+
+	dest = &sp->sk_v6_daddr;
+	src = &sp->sk_v6_rcv_saddr;
+	destp = bpf_ntohs(inet->inet_dport);
+	srcp = bpf_ntohs(inet->inet_sport);
+
+	if (icsk->icsk_pending == ICSK_TIME_RETRANS ||
+	    icsk->icsk_pending == ICSK_TIME_REO_TIMEOUT ||
+	    icsk->icsk_pending == ICSK_TIME_LOSS_PROBE) {
+		timer_active = 1;
+		timer_expires = sp->tcp_retransmit_timer.expires;
+	} else if (icsk->icsk_pending == ICSK_TIME_PROBE0) {
+		timer_active = 4;
+		timer_expires = sp->tcp_retransmit_timer.expires;
+	} else if (timer_pending(&icsk->icsk_keepalive_timer)) {
+		timer_active = 2;
+		timer_expires = icsk->icsk_keepalive_timer.expires;
+	} else {
+		timer_active = 0;
+		timer_expires = bpf_jiffies64();
+	}
+
+	state = sp->sk_state;
+	if (state == TCP_LISTEN) {
+		rx_queue = sp->sk_ack_backlog;
+	} else {
+		rx_queue = tp->tcp.rcv_nxt - tp->tcp.copied_seq;
+		if (rx_queue < 0)
+			rx_queue = 0;
+	}
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X ",
+		       seq_num,
+		       src->s6_addr32[0], src->s6_addr32[1],
+		       src->s6_addr32[2], src->s6_addr32[3], srcp,
+		       dest->s6_addr32[0], dest->s6_addr32[1],
+		       dest->s6_addr32[2], dest->s6_addr32[3], destp);
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d ",
+		       state,
+		       tp->tcp.write_seq - tp->tcp.snd_una, rx_queue,
+		       timer_active,
+		       jiffies_delta_to_clock_t(timer_expires - bpf_jiffies64()),
+		       icsk->icsk_retransmits, uid,
+		       icsk->icsk_probes_out,
+		       sock_i_ino(sp),
+		       sp->sk_refcnt.refs.counter);
+	BPF_SEQ_PRINTF(seq, "%pK %lu %lu %u %u %d\n",
+		       tp,
+		       jiffies_to_clock_t(icsk->icsk_rto),
+		       jiffies_to_clock_t(icsk->icsk_ack.ato),
+		       (icsk->icsk_ack.quick << 1) | inet_csk_in_pingpong_mode(icsk),
+		       tp->tcp.snd_cwnd,
+		       state == TCP_LISTEN ? fastopenq->max_qlen
+				: (tcp_in_initial_slowstart(&tp->tcp) ? -1
+								      : tp->tcp.snd_ssthresh)
+		      );
+
+	return 0;
+}
+
+static int dump_tw_sock(struct seq_file *seq, struct tcp_timewait_sock *ttw,
+			uid_t uid, __u32 seq_num)
+{
+	struct inet_timewait_sock *tw = &ttw->tw_sk;
+	const struct in6_addr *dest, *src;
+	__u16 destp, srcp;
+	long delta;
+
+	delta = tw->tw_timer.expires - bpf_jiffies64();
+	dest = &tw->tw_v6_daddr;
+	src  = &tw->tw_v6_rcv_saddr;
+	destp = bpf_ntohs(tw->tw_dport);
+	srcp  = bpf_ntohs(tw->tw_sport);
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X ",
+		       seq_num,
+		       src->s6_addr32[0], src->s6_addr32[1],
+		       src->s6_addr32[2], src->s6_addr32[3], srcp,
+		       dest->s6_addr32[0], dest->s6_addr32[1],
+		       dest->s6_addr32[2], dest->s6_addr32[3], destp);
+
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n",
+		       tw->tw_substate, 0, 0,
+		       3, jiffies_delta_to_clock_t(delta), 0, 0, 0, 0,
+		       tw->tw_refcnt.refs.counter, tw);
+
+	return 0;
+}
+
+static int dump_req_sock(struct seq_file *seq, struct tcp_request_sock *treq,
+			 uid_t uid, __u32 seq_num)
+{
+	struct inet_request_sock *irsk = &treq->req;
+	struct request_sock *req = &irsk->req;
+	struct in6_addr *src, *dest;
+	long ttd;
+
+	ttd = req->rsk_timer.expires - bpf_jiffies64();
+	src = &irsk->ir_v6_loc_addr;
+	dest = &irsk->ir_v6_rmt_addr;
+
+	if (ttd < 0)
+		ttd = 0;
+
+	BPF_SEQ_PRINTF(seq, "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X ",
+		       seq_num,
+		       src->s6_addr32[0], src->s6_addr32[1],
+		       src->s6_addr32[2], src->s6_addr32[3],
+		       irsk->ir_num,
+		       dest->s6_addr32[0], dest->s6_addr32[1],
+		       dest->s6_addr32[2], dest->s6_addr32[3],
+		       bpf_ntohs(irsk->ir_rmt_port));
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n",
+		       TCP_SYN_RECV, 0, 0, 1, jiffies_to_clock_t(ttd),
+		       req->num_timeout, uid, 0, 0, 0, req);
+
+	return 0;
+}
+
+SEC("iter/tcp")
+int dump_tcp6(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = ctx->sk_common;
+	struct seq_file *seq = ctx->meta->seq;
+	struct tcp_timewait_sock *tw;
+	struct tcp_request_sock *req;
+	struct tcp6_sock *tp;
+	uid_t uid = ctx->uid;
+	__u32 seq_num;
+
+	if (sk_common == (void *)0)
+		return 0;
+
+	seq_num = ctx->meta->seq_num;
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "  sl  "
+				    "local_address                         "
+				    "remote_address                        "
+				    "st tx_queue rx_queue tr tm->when retrnsmt"
+				    "   uid  timeout inode\n");
+
+	if (sk_common->skc_family != AF_INET6)
+		return 0;
+
+	tp = bpf_skc_to_tcp6_sock(sk_common);
+	if (tp)
+		return dump_tcp6_sock(seq, tp, uid, seq_num);
+
+	tw = bpf_skc_to_tcp_timewait_sock(sk_common);
+	if (tw)
+		return dump_tw_sock(seq, tw, uid, seq_num);
+
+	req = bpf_skc_to_tcp_request_sock(sk_common);
+	if (req)
+		return dump_req_sock(seq, req, uid, seq_num);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern1.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern1.c
new file mode 100644
index 000000000000..c71a7c283108
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern1.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define START_CHAR 'a'
+#include "bpf_iter_test_kern_common.h"
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern2.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern2.c
new file mode 100644
index 000000000000..8bdc8dc07444
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern2.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define START_CHAR 'A'
+#include "bpf_iter_test_kern_common.h"
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern3.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern3.c
new file mode 100644
index 000000000000..6b17e7e86a48
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern3.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("iter/task")
+int dump_task(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+	int tgid;
+
+	tgid = task->tgid;
+	bpf_seq_write(seq, &tgid, sizeof(tgid));
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c
new file mode 100644
index 000000000000..56177508798f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern4.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 map1_id = 0, map2_id = 0;
+__u32 map1_accessed = 0, map2_accessed = 0;
+__u64 map1_seqnum = 0, map2_seqnum1 = 0, map2_seqnum2 = 0;
+
+volatile const __u32 print_len;
+volatile const __u32 ret1;
+
+SEC("iter/bpf_map")
+int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct bpf_map *map = ctx->map;
+	__u64 seq_num;
+	int i, ret = 0;
+
+	if (map == (void *)0)
+		return 0;
+
+	/* only dump map1_id and map2_id */
+	if (map->id != map1_id && map->id != map2_id)
+		return 0;
+
+	seq_num = ctx->meta->seq_num;
+	if (map->id == map1_id) {
+		map1_seqnum = seq_num;
+		map1_accessed++;
+	}
+
+	if (map->id == map2_id) {
+		if (map2_accessed == 0) {
+			map2_seqnum1 = seq_num;
+			if (ret1)
+				ret = 1;
+		} else {
+			map2_seqnum2 = seq_num;
+		}
+		map2_accessed++;
+	}
+
+	/* fill seq_file buffer */
+	for (i = 0; i < (int)print_len; i++)
+		bpf_seq_write(seq, &seq_num, sizeof(seq_num));
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern5.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern5.c
new file mode 100644
index 000000000000..9d8b7310d2c2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern5.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct key_t {
+	int a;
+	int b;
+	int c;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, struct key_t);
+	__type(value, __u64);
+} hashmap1 SEC(".maps");
+
+__u32 key_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_hash_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	void *key = ctx->key;
+
+	if (key == (void *)0)
+		return 0;
+
+	/* out of bound access w.r.t. hashmap1 */
+	key_sum += *(__u32 *)(key + sizeof(struct key_t));
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern6.c b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern6.c
new file mode 100644
index 000000000000..b150bd468824
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern6.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 value_sum = 0;
+
+SEC("iter/bpf_map_elem")
+int dump_bpf_hash_map(struct bpf_iter__bpf_map_elem *ctx)
+{
+	void *value = ctx->value;
+
+	if (value == (void *)0)
+		return 0;
+
+	/* negative offset, verifier failure. */
+	value_sum += *(__u32 *)(value - 4);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_test_kern_common.h b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern_common.h
new file mode 100644
index 000000000000..6a4c50497c5e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_test_kern_common.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+int count = 0;
+
+SEC("iter/task")
+int dump_task(struct bpf_iter__task *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	char c;
+
+	if (count < 4) {
+		c = START_CHAR + count;
+		bpf_seq_write(seq, &c, sizeof(c));
+		count++;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c b/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
new file mode 100644
index 000000000000..23b2aa2604de
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp4.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+static long sock_i_ino(const struct sock *sk)
+{
+	const struct socket *sk_socket = sk->sk_socket;
+	const struct inode *inode;
+	unsigned long ino;
+
+	if (!sk_socket)
+		return 0;
+
+	inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
+	bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	return ino;
+}
+
+SEC("iter/udp")
+int dump_udp4(struct bpf_iter__udp *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct udp_sock *udp_sk = ctx->udp_sk;
+	struct inet_sock *inet;
+	__u16 srcp, destp;
+	__be32 dest, src;
+	__u32 seq_num;
+	int rqueue;
+
+	if (udp_sk == (void *)0)
+		return 0;
+
+	seq_num = ctx->meta->seq_num;
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq,
+			       "  sl  local_address rem_address   st tx_queue "
+			       "rx_queue tr tm->when retrnsmt   uid  timeout "
+			       "inode ref pointer drops\n");
+
+	/* filter out udp6 sockets */
+	inet = &udp_sk->inet;
+	if (inet->sk.sk_family == AF_INET6)
+		return 0;
+
+	inet = &udp_sk->inet;
+	dest = inet->inet_daddr;
+	src = inet->inet_rcv_saddr;
+	srcp = bpf_ntohs(inet->inet_sport);
+	destp = bpf_ntohs(inet->inet_dport);
+	rqueue = inet->sk.sk_rmem_alloc.counter - udp_sk->forward_deficit;
+
+	BPF_SEQ_PRINTF(seq, "%5d: %08X:%04X %08X:%04X ",
+		       ctx->bucket, src, srcp, dest, destp);
+
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u\n",
+		       inet->sk.sk_state,
+		       inet->sk.sk_wmem_alloc.refs.counter - 1,
+		       rqueue,
+		       0, 0L, 0, ctx->uid, 0,
+		       sock_i_ino(&inet->sk),
+		       inet->sk.sk_refcnt.refs.counter, udp_sk,
+		       udp_sk->drop_counters.drops0.counter +
+		       udp_sk->drop_counters.drops1.counter);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c b/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
new file mode 100644
index 000000000000..c48b05aa2a4b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_udp6.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define IPV6_SEQ_DGRAM_HEADER				\
+	"  sl  "					\
+	"local_address                         "	\
+	"remote_address                        "	\
+	"st tx_queue rx_queue tr tm->when retrnsmt"	\
+	"   uid  timeout inode ref pointer drops\n"
+
+static long sock_i_ino(const struct sock *sk)
+{
+	const struct socket *sk_socket = sk->sk_socket;
+	const struct inode *inode;
+	unsigned long ino;
+
+	if (!sk_socket)
+		return 0;
+
+	inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
+	bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	return ino;
+}
+
+SEC("iter/udp")
+int dump_udp6(struct bpf_iter__udp *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct udp_sock *udp_sk = ctx->udp_sk;
+	const struct in6_addr *dest, *src;
+	struct udp6_sock *udp6_sk;
+	struct inet_sock *inet;
+	__u16 srcp, destp;
+	__u32 seq_num;
+	int rqueue;
+
+	if (udp_sk == (void *)0)
+		return 0;
+
+	seq_num = ctx->meta->seq_num;
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, IPV6_SEQ_DGRAM_HEADER);
+
+	udp6_sk = bpf_skc_to_udp6_sock(udp_sk);
+	if (udp6_sk == (void *)0)
+		return 0;
+
+	inet = &udp_sk->inet;
+	srcp = bpf_ntohs(inet->inet_sport);
+	destp = bpf_ntohs(inet->inet_dport);
+	rqueue = inet->sk.sk_rmem_alloc.counter - udp_sk->forward_deficit;
+	dest  = &inet->sk.sk_v6_daddr;
+	src   = &inet->sk.sk_v6_rcv_saddr;
+
+	BPF_SEQ_PRINTF(seq, "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X ",
+		       ctx->bucket,
+		       src->s6_addr32[0], src->s6_addr32[1],
+		       src->s6_addr32[2], src->s6_addr32[3], srcp,
+		       dest->s6_addr32[0], dest->s6_addr32[1],
+		       dest->s6_addr32[2], dest->s6_addr32[3], destp);
+
+	BPF_SEQ_PRINTF(seq, "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %u\n",
+		       inet->sk.sk_state,
+		       inet->sk.sk_wmem_alloc.refs.counter - 1,
+		       rqueue,
+		       0, 0L, 0, ctx->uid, 0,
+		       sock_i_ino(&inet->sk),
+		       inet->sk.sk_refcnt.refs.counter, udp_sk,
+		       udp_sk->drop_counters.drops0.counter +
+		       udp_sk->drop_counters.drops1.counter);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_unix.c b/tools/testing/selftests/bpf/progs/bpf_iter_unix.c
new file mode 100644
index 000000000000..fea275df9e22
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_unix.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+#include <vmlinux.h>
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+static long sock_i_ino(const struct sock *sk)
+{
+	const struct socket *sk_socket = sk->sk_socket;
+	const struct inode *inode;
+	unsigned long ino;
+
+	if (!sk_socket)
+		return 0;
+
+	inode = &container_of(sk_socket, struct socket_alloc, socket)->vfs_inode;
+	bpf_probe_read_kernel(&ino, sizeof(ino), &inode->i_ino);
+	return ino;
+}
+
+SEC("iter/unix")
+int dump_unix(struct bpf_iter__unix *ctx)
+{
+	struct unix_sock *unix_sk = ctx->unix_sk;
+	struct sock *sk = (struct sock *)unix_sk;
+	struct seq_file *seq;
+	__u32 seq_num;
+
+	if (!unix_sk)
+		return 0;
+
+	seq = ctx->meta->seq;
+	seq_num = ctx->meta->seq_num;
+	if (seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "Num               RefCount Protocol Flags    Type St    Inode Path\n");
+
+	BPF_SEQ_PRINTF(seq, "%pK: %08X %08X %08X %04X %02X %8lu",
+		       unix_sk,
+		       sk->sk_refcnt.refs.counter,
+		       0,
+		       sk->sk_state == TCP_LISTEN ? __SO_ACCEPTCON : 0,
+		       sk->sk_type,
+		       sk->sk_socket ?
+		       (sk->sk_state == TCP_ESTABLISHED ? SS_CONNECTED : SS_UNCONNECTED) :
+		       (sk->sk_state == TCP_ESTABLISHED ? SS_CONNECTING : SS_DISCONNECTING),
+		       sock_i_ino(sk));
+
+	if (unix_sk->addr) {
+		if (unix_sk->addr->name->sun_path[0]) {
+			BPF_SEQ_PRINTF(seq, " %s", unix_sk->addr->name->sun_path);
+		} else {
+			/* The name of the abstract UNIX domain socket starts
+			 * with '\0' and can contain '\0'.  The null bytes
+			 * should be escaped as done in unix_seq_show().
+			 */
+			__u64 i, len;
+
+			len = unix_sk->addr->len - sizeof(short);
+
+			BPF_SEQ_PRINTF(seq, " @");
+
+			for (i = 1; i < len; i++) {
+				/* unix_validate_addr() tests this upper bound. */
+				if (i >= sizeof(struct sockaddr_un))
+					break;
+
+				BPF_SEQ_PRINTF(seq, "%c",
+					       unix_sk->addr->name->sun_path[i] ?:
+					       '@');
+			}
+		}
+	}
+
+	BPF_SEQ_PRINTF(seq, "\n");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_vma_offset.c b/tools/testing/selftests/bpf/progs/bpf_iter_vma_offset.c
new file mode 100644
index 000000000000..174298e122d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_vma_offset.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 unique_tgid_cnt = 0;
+uintptr_t address = 0;
+uintptr_t offset = 0;
+__u32 last_tgid = 0;
+__u32 pid = 0;
+__u32 page_shift = 0;
+
+SEC("iter/task_vma")
+int get_vma_offset(struct bpf_iter__task_vma *ctx)
+{
+	struct vm_area_struct *vma = ctx->vma;
+	struct seq_file *seq = ctx->meta->seq;
+	struct task_struct *task = ctx->task;
+
+	if (task == NULL || vma == NULL)
+		return 0;
+
+	if (last_tgid != task->tgid)
+		unique_tgid_cnt++;
+	last_tgid = task->tgid;
+
+	if (task->tgid != pid)
+		return 0;
+
+	if (vma->vm_start <= address && vma->vm_end > address) {
+		offset = address - vma->vm_start + (vma->vm_pgoff << page_shift);
+		BPF_SEQ_PRINTF(seq, "OK\n");
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_loop.c b/tools/testing/selftests/bpf/progs/bpf_loop.c
new file mode 100644
index 000000000000..1d194455b109
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_loop.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct callback_ctx {
+	int output;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 32);
+	__type(key, int);
+	__type(value, int);
+} map1 SEC(".maps");
+
+/* These should be set by the user program */
+u32 nested_callback_nr_loops;
+u32 stop_index = -1;
+u32 nr_loops;
+int pid;
+int callback_selector;
+
+/* Making these global variables so that the userspace program
+ * can verify the output through the skeleton
+ */
+int nr_loops_returned;
+int g_output;
+int err;
+
+static int callback(__u32 index, void *data)
+{
+	struct callback_ctx *ctx = data;
+
+	if (index >= stop_index)
+		return 1;
+
+	ctx->output += index;
+
+	return 0;
+}
+
+static int empty_callback(__u32 index, void *data)
+{
+	return 0;
+}
+
+static int nested_callback2(__u32 index, void *data)
+{
+	nr_loops_returned += bpf_loop(nested_callback_nr_loops, callback, data, 0);
+
+	return 0;
+}
+
+static int nested_callback1(__u32 index, void *data)
+{
+	bpf_loop(nested_callback_nr_loops, nested_callback2, data, 0);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int test_prog(void *ctx)
+{
+	struct callback_ctx data = {};
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	nr_loops_returned = bpf_loop(nr_loops, callback, &data, 0);
+
+	if (nr_loops_returned < 0)
+		err = nr_loops_returned;
+	else
+		g_output = data.output;
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int prog_null_ctx(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	nr_loops_returned = bpf_loop(nr_loops, empty_callback, NULL, 0);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int prog_invalid_flags(void *ctx)
+{
+	struct callback_ctx data = {};
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	err = bpf_loop(nr_loops, callback, &data, 1);
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int prog_nested_calls(void *ctx)
+{
+	struct callback_ctx data = {};
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	nr_loops_returned = 0;
+	bpf_loop(nr_loops, nested_callback1, &data, 0);
+
+	g_output = data.output;
+
+	return 0;
+}
+
+static int callback_set_f0(int i, void *ctx)
+{
+	g_output = 0xF0;
+	return 0;
+}
+
+static int callback_set_0f(int i, void *ctx)
+{
+	g_output = 0x0F;
+	return 0;
+}
+
+/*
+ * non-constant callback is a corner case for bpf_loop inline logic
+ */
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int prog_non_constant_callback(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	int (*callback)(int i, void *ctx);
+
+	g_output = 0;
+
+	if (callback_selector == 0x0F)
+		callback = callback_set_0f;
+	else
+		callback = callback_set_f0;
+
+	bpf_loop(1, callback, NULL, 0);
+
+	return 0;
+}
+
+static int stack_check_inner_callback(void *ctx)
+{
+	return 0;
+}
+
+static int map1_lookup_elem(int key)
+{
+	int *val = bpf_map_lookup_elem(&map1, &key);
+
+	return val ? *val : -1;
+}
+
+static void map1_update_elem(int key, int val)
+{
+	bpf_map_update_elem(&map1, &key, &val, BPF_ANY);
+}
+
+static int stack_check_outer_callback(void *ctx)
+{
+	int a = map1_lookup_elem(1);
+	int b = map1_lookup_elem(2);
+	int c = map1_lookup_elem(3);
+	int d = map1_lookup_elem(4);
+	int e = map1_lookup_elem(5);
+	int f = map1_lookup_elem(6);
+
+	bpf_loop(1, stack_check_inner_callback, NULL, 0);
+
+	map1_update_elem(1, a + 1);
+	map1_update_elem(2, b + 1);
+	map1_update_elem(3, c + 1);
+	map1_update_elem(4, d + 1);
+	map1_update_elem(5, e + 1);
+	map1_update_elem(6, f + 1);
+
+	return 0;
+}
+
+/* Some of the local variables in stack_check and
+ * stack_check_outer_callback would be allocated on stack by
+ * compiler. This test should verify that stack content for these
+ * variables is preserved between calls to bpf_loop (might be an issue
+ * if loop inlining allocates stack slots incorrectly).
+ */
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int stack_check(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	int a = map1_lookup_elem(7);
+	int b = map1_lookup_elem(8);
+	int c = map1_lookup_elem(9);
+	int d = map1_lookup_elem(10);
+	int e = map1_lookup_elem(11);
+	int f = map1_lookup_elem(12);
+
+	bpf_loop(1, stack_check_outer_callback, NULL, 0);
+
+	map1_update_elem(7,  a + 1);
+	map1_update_elem(8, b + 1);
+	map1_update_elem(9, c + 1);
+	map1_update_elem(10, d + 1);
+	map1_update_elem(11, e + 1);
+	map1_update_elem(12, f + 1);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_loop_bench.c b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c
new file mode 100644
index 000000000000..d461746fd3c1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_loop_bench.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+u32 nr_loops;
+long hits;
+
+static int empty_callback(__u32 index, void *data)
+{
+	return 0;
+}
+
+static int outer_loop(__u32 index, void *data)
+{
+	bpf_loop(nr_loops, empty_callback, NULL, 0);
+	__sync_add_and_fetch(&hits, nr_loops);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int benchmark(void *ctx)
+{
+	bpf_loop(1000, outer_loop, NULL, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_misc.h b/tools/testing/selftests/bpf/progs/bpf_misc.h
new file mode 100644
index 000000000000..c9bfbe1bafc1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_misc.h
@@ -0,0 +1,273 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BPF_MISC_H__
+#define __BPF_MISC_H__
+
+#define XSTR(s) STR(s)
+#define STR(s) #s
+
+/* Expand a macro and then stringize the expansion */
+#define QUOTE(str) #str
+#define EXPAND_QUOTE(str) QUOTE(str)
+
+/* This set of attributes controls behavior of the
+ * test_loader.c:test_loader__run_subtests().
+ *
+ * The test_loader sequentially loads each program in a skeleton.
+ * Programs could be loaded in privileged and unprivileged modes.
+ * - __success, __failure, __msg, __regex imply privileged mode;
+ * - __success_unpriv, __failure_unpriv, __msg_unpriv, __regex_unpriv
+ *   imply unprivileged mode.
+ * If combination of privileged and unprivileged attributes is present
+ * both modes are used. If none are present privileged mode is implied.
+ *
+ * See test_loader.c:drop_capabilities() for exact set of capabilities
+ * that differ between privileged and unprivileged modes.
+ *
+ * For test filtering purposes the name of the program loaded in
+ * unprivileged mode is derived from the usual program name by adding
+ * `@unpriv' suffix.
+ *
+ * __msg             Message expected to be found in the verifier log.
+ *                   Multiple __msg attributes could be specified.
+ *                   To match a regular expression use "{{" "}}" brackets,
+ *                   e.g. "foo{{[0-9]+}}"  matches strings like "foo007".
+ *                   Extended POSIX regular expression syntax is allowed
+ *                   inside the brackets.
+ * __not_msg         Message not expected to be found in verifier log.
+ *                   If __msg_not is situated between __msg tags
+ *                   framework matches __msg tags first, and then
+ *                   checks that __msg_not is not present in a portion of
+ *                   a log between bracketing __msg tags.
+ *                   Same regex syntax as for __msg is supported.
+ * __msg_unpriv      Same as __msg but for unprivileged mode.
+ * __not_msg_unpriv  Same as __not_msg but for unprivileged mode.
+ *
+ * __stderr          Message expected to be found in bpf stderr stream. The
+ *                   same regex rules apply like __msg.
+ * __stderr_unpriv   Same as __stderr but for unpriveleged mode.
+ * __stdout          Same as __stderr but for stdout stream.
+ * __stdout_unpriv   Same as __stdout but for unpriveleged mode.
+ *
+ * __xlated          Expect a line in a disassembly log after verifier applies rewrites.
+ *                   Multiple __xlated attributes could be specified.
+ *                   Regular expressions could be specified same way as in __msg.
+ * __xlated_unpriv   Same as __xlated but for unprivileged mode.
+ *
+ * __jited           Match a line in a disassembly of the jited BPF program.
+ *                   Has to be used after __arch_* macro.
+ *                   For example:
+ *
+ *                       __arch_x86_64
+ *                       __jited("   endbr64")
+ *                       __jited("   nopl    (%rax,%rax)")
+ *                       __jited("   xorq    %rax, %rax")
+ *                       ...
+ *                       __naked void some_test(void)
+ *                       {
+ *                           asm volatile (... ::: __clobber_all);
+ *                       }
+ *
+ *                   Regular expressions could be included in patterns same way
+ *                   as in __msg.
+ *
+ *                   By default assume that each pattern has to be matched on the
+ *                   next consecutive line of disassembly, e.g.:
+ *
+ *                       __jited("   endbr64")             # matched on line N
+ *                       __jited("   nopl    (%rax,%rax)") # matched on line N+1
+ *
+ *                   If match occurs on a wrong line an error is reported.
+ *                   To override this behaviour use literal "...", e.g.:
+ *
+ *                       __jited("   endbr64")             # matched on line N
+ *                       __jited("...")                    # not matched
+ *                       __jited("   nopl    (%rax,%rax)") # matched on any line >= N
+ *
+ * __jited_unpriv    Same as __jited but for unprivileged mode.
+ *
+ *
+ * __success         Expect program load success in privileged mode.
+ * __success_unpriv  Expect program load success in unprivileged mode.
+ *
+ * __failure         Expect program load failure in privileged mode.
+ * __failure_unpriv  Expect program load failure in unprivileged mode.
+ *
+ * __retval          Execute the program using BPF_PROG_TEST_RUN command,
+ *                   expect return value to match passed parameter:
+ *                   - a decimal number
+ *                   - a hexadecimal number, when starts from 0x
+ *                   - a macro which expands to one of the above
+ *                   - literal _INT_MIN (expands to INT_MIN)
+ *                   In addition, two special macros are defined below:
+ *                   - POINTER_VALUE
+ *                   - TEST_DATA_LEN
+ * __retval_unpriv   Same, but load program in unprivileged mode.
+ *
+ * __description     Text to be used instead of a program name for display
+ *                   and filtering purposes.
+ *
+ * __log_level       Log level to use for the program, numeric value expected.
+ *
+ * __flag            Adds one flag use for the program, the following values are valid:
+ *                   - BPF_F_STRICT_ALIGNMENT;
+ *                   - BPF_F_TEST_RND_HI32;
+ *                   - BPF_F_TEST_STATE_FREQ;
+ *                   - BPF_F_SLEEPABLE;
+ *                   - BPF_F_XDP_HAS_FRAGS;
+ *                   - A numeric value.
+ *                   Multiple __flag attributes could be specified, the final flags
+ *                   value is derived by applying binary "or" to all specified values.
+ *
+ * __auxiliary         Annotated program is not a separate test, but used as auxiliary
+ *                     for some other test cases and should always be loaded.
+ * __auxiliary_unpriv  Same, but load program in unprivileged mode.
+ *
+ * __arch_*          Specify on which architecture the test case should be tested.
+ *                   Several __arch_* annotations could be specified at once.
+ *                   When test case is not run on current arch it is marked as skipped.
+ * __caps_unpriv     Specify the capabilities that should be set when running the test.
+ *
+ * __linear_size     Specify the size of the linear area of non-linear skbs, or
+ *                   0 for linear skbs.
+ */
+#define __msg(msg)		__attribute__((btf_decl_tag("comment:test_expect_msg=" XSTR(__COUNTER__) "=" msg)))
+#define __not_msg(msg)		__attribute__((btf_decl_tag("comment:test_expect_not_msg=" XSTR(__COUNTER__) "=" msg)))
+#define __xlated(msg)		__attribute__((btf_decl_tag("comment:test_expect_xlated=" XSTR(__COUNTER__) "=" msg)))
+#define __jited(msg)		__attribute__((btf_decl_tag("comment:test_jited=" XSTR(__COUNTER__) "=" msg)))
+#define __failure		__attribute__((btf_decl_tag("comment:test_expect_failure")))
+#define __success		__attribute__((btf_decl_tag("comment:test_expect_success")))
+#define __description(desc)	__attribute__((btf_decl_tag("comment:test_description=" desc)))
+#define __msg_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_expect_msg_unpriv=" XSTR(__COUNTER__) "=" msg)))
+#define __not_msg_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_expect_not_msg_unpriv=" XSTR(__COUNTER__) "=" msg)))
+#define __xlated_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_expect_xlated_unpriv=" XSTR(__COUNTER__) "=" msg)))
+#define __jited_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_jited=" XSTR(__COUNTER__) "=" msg)))
+#define __failure_unpriv	__attribute__((btf_decl_tag("comment:test_expect_failure_unpriv")))
+#define __success_unpriv	__attribute__((btf_decl_tag("comment:test_expect_success_unpriv")))
+#define __log_level(lvl)	__attribute__((btf_decl_tag("comment:test_log_level="#lvl)))
+#define __flag(flag)		__attribute__((btf_decl_tag("comment:test_prog_flags="#flag)))
+#define __retval(val)		__attribute__((btf_decl_tag("comment:test_retval="XSTR(val))))
+#define __retval_unpriv(val)	__attribute__((btf_decl_tag("comment:test_retval_unpriv="XSTR(val))))
+#define __auxiliary		__attribute__((btf_decl_tag("comment:test_auxiliary")))
+#define __auxiliary_unpriv	__attribute__((btf_decl_tag("comment:test_auxiliary_unpriv")))
+#define __btf_path(path)	__attribute__((btf_decl_tag("comment:test_btf_path=" path)))
+#define __arch(arch)		__attribute__((btf_decl_tag("comment:test_arch=" arch)))
+#define __arch_x86_64		__arch("X86_64")
+#define __arch_arm64		__arch("ARM64")
+#define __arch_riscv64		__arch("RISCV64")
+#define __arch_s390x		__arch("s390x")
+#define __caps_unpriv(caps)	__attribute__((btf_decl_tag("comment:test_caps_unpriv=" EXPAND_QUOTE(caps))))
+#define __load_if_JITed()	__attribute__((btf_decl_tag("comment:load_mode=jited")))
+#define __load_if_no_JITed()	__attribute__((btf_decl_tag("comment:load_mode=no_jited")))
+#define __stderr(msg)		__attribute__((btf_decl_tag("comment:test_expect_stderr=" XSTR(__COUNTER__) "=" msg)))
+#define __stderr_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_expect_stderr_unpriv=" XSTR(__COUNTER__) "=" msg)))
+#define __stdout(msg)		__attribute__((btf_decl_tag("comment:test_expect_stdout=" XSTR(__COUNTER__) "=" msg)))
+#define __stdout_unpriv(msg)	__attribute__((btf_decl_tag("comment:test_expect_stdout_unpriv=" XSTR(__COUNTER__) "=" msg)))
+#define __linear_size(sz)	__attribute__((btf_decl_tag("comment:test_linear_size=" XSTR(sz))))
+
+/* Define common capabilities tested using __caps_unpriv */
+#define CAP_NET_ADMIN		12
+#define CAP_SYS_ADMIN		21
+#define CAP_PERFMON		38
+#define CAP_BPF			39
+
+/* Convenience macro for use with 'asm volatile' blocks */
+#define __naked __attribute__((naked))
+#define __clobber_all "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "memory"
+#define __clobber_common "r0", "r1", "r2", "r3", "r4", "r5", "memory"
+#define __imm(name) [name]"i"(name)
+#define __imm_const(name, expr) [name]"i"(expr)
+#define __imm_addr(name) [name]"i"(&name)
+#define __imm_ptr(name) [name]"r"(&name)
+#define __imm_insn(name, expr) [name]"i"(*(long *)&(expr))
+
+#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
+#define offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER) + sizeof_field(TYPE, MEMBER))
+
+/* Magic constants used with __retval() */
+#define POINTER_VALUE	0xbadcafe
+#define TEST_DATA_LEN	64
+
+#ifndef __used
+#define __used __attribute__((used))
+#endif
+
+#if defined(__TARGET_ARCH_x86)
+#define SYSCALL_WRAPPER 1
+#define SYS_PREFIX "__x64_"
+#elif defined(__TARGET_ARCH_s390)
+#define SYSCALL_WRAPPER 1
+#define SYS_PREFIX "__s390x_"
+#elif defined(__TARGET_ARCH_arm64)
+#define SYSCALL_WRAPPER 1
+#define SYS_PREFIX "__arm64_"
+#elif defined(__TARGET_ARCH_riscv)
+#define SYSCALL_WRAPPER 1
+#define SYS_PREFIX "__riscv_"
+#elif defined(__TARGET_ARCH_powerpc)
+#define SYSCALL_WRAPPER 1
+#define SYS_PREFIX ""
+#else
+#define SYSCALL_WRAPPER 0
+#define SYS_PREFIX "__se_"
+#endif
+
+/* How many arguments are passed to function in register */
+#if defined(__TARGET_ARCH_x86) || defined(__x86_64__)
+#define FUNC_REG_ARG_CNT 6
+#elif defined(__i386__)
+#define FUNC_REG_ARG_CNT 3
+#elif defined(__TARGET_ARCH_s390) || defined(__s390x__)
+#define FUNC_REG_ARG_CNT 5
+#elif defined(__TARGET_ARCH_arm) || defined(__arm__)
+#define FUNC_REG_ARG_CNT 4
+#elif defined(__TARGET_ARCH_arm64) || defined(__aarch64__)
+#define FUNC_REG_ARG_CNT 8
+#elif defined(__TARGET_ARCH_mips) || defined(__mips__)
+#define FUNC_REG_ARG_CNT 8
+#elif defined(__TARGET_ARCH_powerpc) || defined(__powerpc__) || defined(__powerpc64__)
+#define FUNC_REG_ARG_CNT 8
+#elif defined(__TARGET_ARCH_sparc) || defined(__sparc__)
+#define FUNC_REG_ARG_CNT 6
+#elif defined(__TARGET_ARCH_riscv) || defined(__riscv__)
+#define FUNC_REG_ARG_CNT 8
+#else
+/* default to 5 for others */
+#define FUNC_REG_ARG_CNT 5
+#endif
+
+/* make it look to compiler like value is read and written */
+#define __sink(expr) asm volatile("" : "+g"(expr))
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) ||	\
+     (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) ||		\
+     defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) ||	\
+     defined(__TARGET_ARCH_loongarch)) &&				\
+	__clang_major__ >= 18
+#define CAN_USE_GOTOL
+#endif
+
+#if __clang_major__ >= 18
+#define CAN_USE_BPF_ST
+#endif
+
+#if __clang_major__ >= 18 && defined(ENABLE_ATOMICS_TESTS) &&		\
+	(defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) ||	\
+	 (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64)) || \
+	  (defined(__TARGET_ARCH_powerpc))
+#define CAN_USE_LOAD_ACQ_STORE_REL
+#endif
+
+#if defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86)
+#define SPEC_V1
+#endif
+
+#if defined(__TARGET_ARCH_x86)
+#define SPEC_V4
+#endif
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bpf_mod_race.c b/tools/testing/selftests/bpf/progs/bpf_mod_race.c
new file mode 100644
index 000000000000..82a5c6c6ba83
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_mod_race.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+const volatile struct {
+	/* thread to activate trace programs for */
+	pid_t tgid;
+	/* return error from __init function */
+	int inject_error;
+	/* uffd monitored range start address */
+	void *fault_addr;
+} bpf_mod_race_config = { -1 };
+
+int bpf_blocking = 0;
+int res_try_get_module = -1;
+
+static __always_inline bool check_thread_id(void)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+
+	return task->tgid == bpf_mod_race_config.tgid;
+}
+
+/* The trace of execution is something like this:
+ *
+ * finit_module()
+ *   load_module()
+ *     prepare_coming_module()
+ *       notifier_call(MODULE_STATE_COMING)
+ *         btf_parse_module()
+ *         btf_alloc_id()		// Visible to userspace at this point
+ *         list_add(btf_mod->list, &btf_modules)
+ *     do_init_module()
+ *       freeinit = kmalloc()
+ *       ret = mod->init()
+ *         bpf_prog_widen_race()
+ *           bpf_copy_from_user()
+ *             ...<sleep>...
+ *       if (ret < 0)
+ *         ...
+ *         free_module()
+ * return ret
+ *
+ * At this point, module loading thread is blocked, we now load the program:
+ *
+ * bpf_check
+ *   add_kfunc_call/check_pseudo_btf_id
+ *     btf_try_get_module
+ *       try_get_module_live == false
+ *     return -ENXIO
+ *
+ * Without the fix (try_get_module_live in btf_try_get_module):
+ *
+ * bpf_check
+ *   add_kfunc_call/check_pseudo_btf_id
+ *     btf_try_get_module
+ *       try_get_module == true
+ *     <store module reference in btf_kfunc_tab or used_btf array>
+ *   ...
+ * return fd
+ *
+ * Now, if we inject an error in the blocked program, our module will be freed
+ * (going straight from MODULE_STATE_COMING to MODULE_STATE_GOING).
+ * Later, when bpf program is freed, it will try to module_put already freed
+ * module. This is why try_get_module_live returns false if mod->state is not
+ * MODULE_STATE_LIVE.
+ */
+
+SEC("fmod_ret.s/bpf_fentry_test1")
+int BPF_PROG(widen_race, int a, int ret)
+{
+	char dst;
+
+	if (!check_thread_id())
+		return 0;
+	/* Indicate that we will attempt to block */
+	bpf_blocking = 1;
+	bpf_copy_from_user(&dst, 1, bpf_mod_race_config.fault_addr);
+	return bpf_mod_race_config.inject_error;
+}
+
+SEC("fexit/do_init_module")
+int BPF_PROG(fexit_init_module, struct module *mod, int ret)
+{
+	if (!check_thread_id())
+		return 0;
+	/* Indicate that we finished blocking */
+	bpf_blocking = 2;
+	return 0;
+}
+
+SEC("fexit/btf_try_get_module")
+int BPF_PROG(fexit_module_get, const struct btf *btf, struct module *mod)
+{
+	res_try_get_module = !!mod;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h b/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h
new file mode 100644
index 000000000000..3754f581b328
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_qdisc_common.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _BPF_QDISC_COMMON_H
+#define _BPF_QDISC_COMMON_H
+
+#define NET_XMIT_SUCCESS        0x00
+#define NET_XMIT_DROP           0x01    /* skb dropped                  */
+#define NET_XMIT_CN             0x02    /* congestion notification      */
+
+#define TC_PRIO_CONTROL  7
+#define TC_PRIO_MAX      15
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+
+struct bpf_sk_buff_ptr;
+
+static struct qdisc_skb_cb *qdisc_skb_cb(const struct sk_buff *skb)
+{
+	return (struct qdisc_skb_cb *)skb->cb;
+}
+
+static inline unsigned int qdisc_pkt_len(const struct sk_buff *skb)
+{
+	return qdisc_skb_cb(skb)->pkt_len;
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bpf_qdisc_fail__incompl_ops.c b/tools/testing/selftests/bpf/progs/bpf_qdisc_fail__incompl_ops.c
new file mode 100644
index 000000000000..f188062ed730
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_qdisc_fail__incompl_ops.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include "bpf_experimental.h"
+#include "bpf_qdisc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops")
+int BPF_PROG(bpf_qdisc_test_enqueue, struct sk_buff *skb, struct Qdisc *sch,
+	     struct bpf_sk_buff_ptr *to_free)
+{
+	bpf_qdisc_skb_drop(skb, to_free);
+	return NET_XMIT_DROP;
+}
+
+SEC("struct_ops")
+struct sk_buff *BPF_PROG(bpf_qdisc_test_dequeue, struct Qdisc *sch)
+{
+	return NULL;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_qdisc_test_reset, struct Qdisc *sch)
+{
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_qdisc_test_destroy, struct Qdisc *sch)
+{
+}
+
+SEC(".struct_ops")
+struct Qdisc_ops test = {
+	.enqueue   = (void *)bpf_qdisc_test_enqueue,
+	.dequeue   = (void *)bpf_qdisc_test_dequeue,
+	.reset     = (void *)bpf_qdisc_test_reset,
+	.destroy   = (void *)bpf_qdisc_test_destroy,
+	.id        = "bpf_qdisc_test",
+};
+
diff --git a/tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c b/tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c
new file mode 100644
index 000000000000..1de2be3e370b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_qdisc_fifo.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include "bpf_experimental.h"
+#include "bpf_qdisc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct skb_node {
+	struct sk_buff __kptr * skb;
+	struct bpf_list_node node;
+};
+
+private(A) struct bpf_spin_lock q_fifo_lock;
+private(A) struct bpf_list_head q_fifo __contains(skb_node, node);
+
+bool init_called;
+
+SEC("struct_ops/bpf_fifo_enqueue")
+int BPF_PROG(bpf_fifo_enqueue, struct sk_buff *skb, struct Qdisc *sch,
+	     struct bpf_sk_buff_ptr *to_free)
+{
+	struct skb_node *skbn;
+	u32 pkt_len;
+
+	if (sch->q.qlen == sch->limit)
+		goto drop;
+
+	skbn = bpf_obj_new(typeof(*skbn));
+	if (!skbn)
+		goto drop;
+
+	pkt_len = qdisc_pkt_len(skb);
+
+	sch->q.qlen++;
+	skb = bpf_kptr_xchg(&skbn->skb, skb);
+	if (skb)
+		bpf_qdisc_skb_drop(skb, to_free);
+
+	bpf_spin_lock(&q_fifo_lock);
+	bpf_list_push_back(&q_fifo, &skbn->node);
+	bpf_spin_unlock(&q_fifo_lock);
+
+	sch->qstats.backlog += pkt_len;
+	return NET_XMIT_SUCCESS;
+drop:
+	bpf_qdisc_skb_drop(skb, to_free);
+	return NET_XMIT_DROP;
+}
+
+SEC("struct_ops/bpf_fifo_dequeue")
+struct sk_buff *BPF_PROG(bpf_fifo_dequeue, struct Qdisc *sch)
+{
+	struct bpf_list_node *node;
+	struct sk_buff *skb = NULL;
+	struct skb_node *skbn;
+
+	bpf_spin_lock(&q_fifo_lock);
+	node = bpf_list_pop_front(&q_fifo);
+	bpf_spin_unlock(&q_fifo_lock);
+	if (!node)
+		return NULL;
+
+	skbn = container_of(node, struct skb_node, node);
+	skb = bpf_kptr_xchg(&skbn->skb, skb);
+	bpf_obj_drop(skbn);
+	if (!skb)
+		return NULL;
+
+	sch->qstats.backlog -= qdisc_pkt_len(skb);
+	bpf_qdisc_bstats_update(sch, skb);
+	sch->q.qlen--;
+
+	return skb;
+}
+
+SEC("struct_ops/bpf_fifo_init")
+int BPF_PROG(bpf_fifo_init, struct Qdisc *sch, struct nlattr *opt,
+	     struct netlink_ext_ack *extack)
+{
+	sch->limit = 1000;
+	init_called = true;
+	return 0;
+}
+
+SEC("struct_ops/bpf_fifo_reset")
+void BPF_PROG(bpf_fifo_reset, struct Qdisc *sch)
+{
+	struct bpf_list_node *node;
+	struct skb_node *skbn;
+	int i;
+
+	bpf_for(i, 0, sch->q.qlen) {
+		struct sk_buff *skb = NULL;
+
+		bpf_spin_lock(&q_fifo_lock);
+		node = bpf_list_pop_front(&q_fifo);
+		bpf_spin_unlock(&q_fifo_lock);
+
+		if (!node)
+			break;
+
+		skbn = container_of(node, struct skb_node, node);
+		skb = bpf_kptr_xchg(&skbn->skb, skb);
+		if (skb)
+			bpf_kfree_skb(skb);
+		bpf_obj_drop(skbn);
+	}
+	sch->q.qlen = 0;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_fifo_destroy, struct Qdisc *sch)
+{
+}
+
+SEC(".struct_ops")
+struct Qdisc_ops fifo = {
+	.enqueue   = (void *)bpf_fifo_enqueue,
+	.dequeue   = (void *)bpf_fifo_dequeue,
+	.init      = (void *)bpf_fifo_init,
+	.reset     = (void *)bpf_fifo_reset,
+	.destroy   = (void *)bpf_fifo_destroy,
+	.id        = "bpf_fifo",
+};
+
diff --git a/tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c b/tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c
new file mode 100644
index 000000000000..1a3233a275c7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_qdisc_fq.c
@@ -0,0 +1,756 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* bpf_fq is intended for testing the bpf qdisc infrastructure and not a direct
+ * copy of sch_fq. bpf_fq implements the scheduling algorithm of sch_fq before
+ * 29f834aa326e ("net_sched: sch_fq: add 3 bands and WRR scheduling") was
+ * introduced. It gives each flow a fair chance to transmit packets in a
+ * round-robin fashion. Note that for flow pacing, bpf_fq currently only
+ * respects skb->tstamp but not skb->sk->sk_pacing_rate. In addition, if there
+ * are multiple bpf_fq instances, they will have a shared view of flows and
+ * configuration since some key data structure such as fq_prio_flows,
+ * fq_nonprio_flows, and fq_bpf_data are global.
+ *
+ * To use bpf_fq alone without running selftests, use the following commands.
+ *
+ * 1. Register bpf_fq to the kernel
+ *     bpftool struct_ops register bpf_qdisc_fq.bpf.o /sys/fs/bpf
+ * 2. Add bpf_fq to an interface
+ *     tc qdisc add dev <interface name> root handle <handle> bpf_fq
+ * 3. Delete bpf_fq attached to the interface
+ *     tc qdisc delete dev <interface name> root
+ * 4. Unregister bpf_fq
+ *     bpftool struct_ops unregister name fq
+ *
+ * The qdisc name, bpf_fq, used in tc commands is defined by Qdisc_ops.id.
+ * The struct_ops_map_name, fq, used in the bpftool command is the name of the
+ * Qdisc_ops.
+ *
+ * SEC(".struct_ops")
+ * struct Qdisc_ops fq = {
+ *         ...
+ *         .id        = "bpf_fq",
+ * };
+ */
+
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+#include "bpf_qdisc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define NSEC_PER_USEC 1000L
+#define NSEC_PER_SEC 1000000000L
+
+#define NUM_QUEUE (1 << 20)
+
+struct fq_bpf_data {
+	u32 quantum;
+	u32 initial_quantum;
+	u32 flow_refill_delay;
+	u32 flow_plimit;
+	u64 horizon;
+	u32 orphan_mask;
+	u32 timer_slack;
+	u64 time_next_delayed_flow;
+	u64 unthrottle_latency_ns;
+	u8 horizon_drop;
+	u32 new_flow_cnt;
+	u32 old_flow_cnt;
+	u64 ktime_cache;
+};
+
+enum {
+	CLS_RET_PRIO	= 0,
+	CLS_RET_NONPRIO = 1,
+	CLS_RET_ERR	= 2,
+};
+
+struct skb_node {
+	u64 tstamp;
+	struct sk_buff __kptr * skb;
+	struct bpf_rb_node node;
+};
+
+struct fq_flow_node {
+	int credit;
+	u32 qlen;
+	u64 age;
+	u64 time_next_packet;
+	struct bpf_list_node list_node;
+	struct bpf_rb_node rb_node;
+	struct bpf_rb_root queue __contains(skb_node, node);
+	struct bpf_spin_lock lock;
+	struct bpf_refcount refcount;
+};
+
+struct dequeue_nonprio_ctx {
+	bool stop_iter;
+	u64 expire;
+	u64 now;
+};
+
+struct remove_flows_ctx {
+	bool gc_only;
+	u32 reset_cnt;
+	u32 reset_max;
+};
+
+struct unset_throttled_flows_ctx {
+	bool unset_all;
+	u64 now;
+};
+
+struct fq_stashed_flow {
+	struct fq_flow_node __kptr * flow;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u64);
+	__type(value, struct fq_stashed_flow);
+	__uint(max_entries, NUM_QUEUE);
+} fq_nonprio_flows SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u64);
+	__type(value, struct fq_stashed_flow);
+	__uint(max_entries, 1);
+} fq_prio_flows SEC(".maps");
+
+private(A) struct bpf_spin_lock fq_delayed_lock;
+private(A) struct bpf_rb_root fq_delayed __contains(fq_flow_node, rb_node);
+
+private(B) struct bpf_spin_lock fq_new_flows_lock;
+private(B) struct bpf_list_head fq_new_flows __contains(fq_flow_node, list_node);
+
+private(C) struct bpf_spin_lock fq_old_flows_lock;
+private(C) struct bpf_list_head fq_old_flows __contains(fq_flow_node, list_node);
+
+private(D) struct fq_bpf_data q;
+
+/* Wrapper for bpf_kptr_xchg that expects NULL dst */
+static void bpf_kptr_xchg_back(void *map_val, void *ptr)
+{
+	void *ret;
+
+	ret = bpf_kptr_xchg(map_val, ptr);
+	if (ret)
+		bpf_obj_drop(ret);
+}
+
+static bool skbn_tstamp_less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct skb_node *skbn_a;
+	struct skb_node *skbn_b;
+
+	skbn_a = container_of(a, struct skb_node, node);
+	skbn_b = container_of(b, struct skb_node, node);
+
+	return skbn_a->tstamp < skbn_b->tstamp;
+}
+
+static bool fn_time_next_packet_less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct fq_flow_node *flow_a;
+	struct fq_flow_node *flow_b;
+
+	flow_a = container_of(a, struct fq_flow_node, rb_node);
+	flow_b = container_of(b, struct fq_flow_node, rb_node);
+
+	return flow_a->time_next_packet < flow_b->time_next_packet;
+}
+
+static void
+fq_flows_add_head(struct bpf_list_head *head, struct bpf_spin_lock *lock,
+		  struct fq_flow_node *flow, u32 *flow_cnt)
+{
+	bpf_spin_lock(lock);
+	bpf_list_push_front(head, &flow->list_node);
+	bpf_spin_unlock(lock);
+	*flow_cnt += 1;
+}
+
+static void
+fq_flows_add_tail(struct bpf_list_head *head, struct bpf_spin_lock *lock,
+		  struct fq_flow_node *flow, u32 *flow_cnt)
+{
+	bpf_spin_lock(lock);
+	bpf_list_push_back(head, &flow->list_node);
+	bpf_spin_unlock(lock);
+	*flow_cnt += 1;
+}
+
+static void
+fq_flows_remove_front(struct bpf_list_head *head, struct bpf_spin_lock *lock,
+		      struct bpf_list_node **node, u32 *flow_cnt)
+{
+	bpf_spin_lock(lock);
+	*node = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	*flow_cnt -= 1;
+}
+
+static bool
+fq_flows_is_empty(struct bpf_list_head *head, struct bpf_spin_lock *lock)
+{
+	struct bpf_list_node *node;
+
+	bpf_spin_lock(lock);
+	node = bpf_list_pop_front(head);
+	if (node) {
+		bpf_list_push_front(head, node);
+		bpf_spin_unlock(lock);
+		return false;
+	}
+	bpf_spin_unlock(lock);
+
+	return true;
+}
+
+/* flow->age is used to denote the state of the flow (not-detached, detached, throttled)
+ * as well as the timestamp when the flow is detached.
+ *
+ * 0: not-detached
+ * 1 - (~0ULL-1): detached
+ * ~0ULL: throttled
+ */
+static void fq_flow_set_detached(struct fq_flow_node *flow)
+{
+	flow->age = bpf_jiffies64();
+}
+
+static bool fq_flow_is_detached(struct fq_flow_node *flow)
+{
+	return flow->age != 0 && flow->age != ~0ULL;
+}
+
+static bool sk_listener(struct sock *sk)
+{
+	return (1 << sk->__sk_common.skc_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV);
+}
+
+static void fq_gc(void);
+
+static int fq_new_flow(void *flow_map, struct fq_stashed_flow **sflow, u64 hash)
+{
+	struct fq_stashed_flow tmp = {};
+	struct fq_flow_node *flow;
+	int ret;
+
+	flow = bpf_obj_new(typeof(*flow));
+	if (!flow)
+		return -ENOMEM;
+
+	flow->credit = q.initial_quantum,
+	flow->qlen = 0,
+	flow->age = 1,
+	flow->time_next_packet = 0,
+
+	ret = bpf_map_update_elem(flow_map, &hash, &tmp, 0);
+	if (ret == -ENOMEM || ret == -E2BIG) {
+		fq_gc();
+		bpf_map_update_elem(&fq_nonprio_flows, &hash, &tmp, 0);
+	}
+
+	*sflow = bpf_map_lookup_elem(flow_map, &hash);
+	if (!*sflow) {
+		bpf_obj_drop(flow);
+		return -ENOMEM;
+	}
+
+	bpf_kptr_xchg_back(&(*sflow)->flow, flow);
+	return 0;
+}
+
+static int
+fq_classify(struct sk_buff *skb, struct fq_stashed_flow **sflow)
+{
+	struct sock *sk = skb->sk;
+	int ret = CLS_RET_NONPRIO;
+	u64 hash = 0;
+
+	if ((skb->priority & TC_PRIO_MAX) == TC_PRIO_CONTROL) {
+		*sflow = bpf_map_lookup_elem(&fq_prio_flows, &hash);
+		ret = CLS_RET_PRIO;
+	} else {
+		if (!sk || sk_listener(sk)) {
+			hash = bpf_skb_get_hash(skb) & q.orphan_mask;
+			/* Avoid collision with an existing flow hash, which
+			 * only uses the lower 32 bits of hash, by setting the
+			 * upper half of hash to 1.
+			 */
+			hash |= (1ULL << 32);
+		} else if (sk->__sk_common.skc_state == TCP_CLOSE) {
+			hash = bpf_skb_get_hash(skb) & q.orphan_mask;
+			hash |= (1ULL << 32);
+		} else {
+			hash = sk->__sk_common.skc_hash;
+		}
+		*sflow = bpf_map_lookup_elem(&fq_nonprio_flows, &hash);
+	}
+
+	if (!*sflow)
+		ret = fq_new_flow(&fq_nonprio_flows, sflow, hash) < 0 ?
+		      CLS_RET_ERR : CLS_RET_NONPRIO;
+
+	return ret;
+}
+
+static bool fq_packet_beyond_horizon(struct sk_buff *skb)
+{
+	return (s64)skb->tstamp > (s64)(q.ktime_cache + q.horizon);
+}
+
+SEC("struct_ops/bpf_fq_enqueue")
+int BPF_PROG(bpf_fq_enqueue, struct sk_buff *skb, struct Qdisc *sch,
+	     struct bpf_sk_buff_ptr *to_free)
+{
+	struct fq_flow_node *flow = NULL, *flow_copy;
+	struct fq_stashed_flow *sflow;
+	u64 time_to_send, jiffies;
+	struct skb_node *skbn;
+	int ret;
+
+	if (sch->q.qlen >= sch->limit)
+		goto drop;
+
+	if (!skb->tstamp) {
+		time_to_send = q.ktime_cache = bpf_ktime_get_ns();
+	} else {
+		if (fq_packet_beyond_horizon(skb)) {
+			q.ktime_cache = bpf_ktime_get_ns();
+			if (fq_packet_beyond_horizon(skb)) {
+				if (q.horizon_drop)
+					goto drop;
+
+				skb->tstamp = q.ktime_cache + q.horizon;
+			}
+		}
+		time_to_send = skb->tstamp;
+	}
+
+	ret = fq_classify(skb, &sflow);
+	if (ret == CLS_RET_ERR)
+		goto drop;
+
+	flow = bpf_kptr_xchg(&sflow->flow, flow);
+	if (!flow)
+		goto drop;
+
+	if (ret == CLS_RET_NONPRIO) {
+		if (flow->qlen >= q.flow_plimit) {
+			bpf_kptr_xchg_back(&sflow->flow, flow);
+			goto drop;
+		}
+
+		if (fq_flow_is_detached(flow)) {
+			flow_copy = bpf_refcount_acquire(flow);
+
+			jiffies = bpf_jiffies64();
+			if ((s64)(jiffies - (flow_copy->age + q.flow_refill_delay)) > 0) {
+				if (flow_copy->credit < q.quantum)
+					flow_copy->credit = q.quantum;
+			}
+			flow_copy->age = 0;
+			fq_flows_add_tail(&fq_new_flows, &fq_new_flows_lock, flow_copy,
+					  &q.new_flow_cnt);
+		}
+	}
+
+	skbn = bpf_obj_new(typeof(*skbn));
+	if (!skbn) {
+		bpf_kptr_xchg_back(&sflow->flow, flow);
+		goto drop;
+	}
+
+	skbn->tstamp = skb->tstamp = time_to_send;
+
+	sch->qstats.backlog += qdisc_pkt_len(skb);
+
+	skb = bpf_kptr_xchg(&skbn->skb, skb);
+	if (skb)
+		bpf_qdisc_skb_drop(skb, to_free);
+
+	bpf_spin_lock(&flow->lock);
+	bpf_rbtree_add(&flow->queue, &skbn->node, skbn_tstamp_less);
+	bpf_spin_unlock(&flow->lock);
+
+	flow->qlen++;
+	bpf_kptr_xchg_back(&sflow->flow, flow);
+
+	sch->q.qlen++;
+	return NET_XMIT_SUCCESS;
+
+drop:
+	bpf_qdisc_skb_drop(skb, to_free);
+	sch->qstats.drops++;
+	return NET_XMIT_DROP;
+}
+
+static int fq_unset_throttled_flows(u32 index, struct unset_throttled_flows_ctx *ctx)
+{
+	struct bpf_rb_node *node = NULL;
+	struct fq_flow_node *flow;
+
+	bpf_spin_lock(&fq_delayed_lock);
+
+	node = bpf_rbtree_first(&fq_delayed);
+	if (!node) {
+		bpf_spin_unlock(&fq_delayed_lock);
+		return 1;
+	}
+
+	flow = container_of(node, struct fq_flow_node, rb_node);
+	if (!ctx->unset_all && flow->time_next_packet > ctx->now) {
+		q.time_next_delayed_flow = flow->time_next_packet;
+		bpf_spin_unlock(&fq_delayed_lock);
+		return 1;
+	}
+
+	node = bpf_rbtree_remove(&fq_delayed, &flow->rb_node);
+
+	bpf_spin_unlock(&fq_delayed_lock);
+
+	if (!node)
+		return 1;
+
+	flow = container_of(node, struct fq_flow_node, rb_node);
+	flow->age = 0;
+	fq_flows_add_tail(&fq_old_flows, &fq_old_flows_lock, flow, &q.old_flow_cnt);
+
+	return 0;
+}
+
+static void fq_flow_set_throttled(struct fq_flow_node *flow)
+{
+	flow->age = ~0ULL;
+
+	if (q.time_next_delayed_flow > flow->time_next_packet)
+		q.time_next_delayed_flow = flow->time_next_packet;
+
+	bpf_spin_lock(&fq_delayed_lock);
+	bpf_rbtree_add(&fq_delayed, &flow->rb_node, fn_time_next_packet_less);
+	bpf_spin_unlock(&fq_delayed_lock);
+}
+
+static void fq_check_throttled(u64 now)
+{
+	struct unset_throttled_flows_ctx ctx = {
+		.unset_all = false,
+		.now = now,
+	};
+	unsigned long sample;
+
+	if (q.time_next_delayed_flow > now)
+		return;
+
+	sample = (unsigned long)(now - q.time_next_delayed_flow);
+	q.unthrottle_latency_ns -= q.unthrottle_latency_ns >> 3;
+	q.unthrottle_latency_ns += sample >> 3;
+
+	q.time_next_delayed_flow = ~0ULL;
+	bpf_loop(NUM_QUEUE, fq_unset_throttled_flows, &ctx, 0);
+}
+
+static struct sk_buff*
+fq_dequeue_nonprio_flows(u32 index, struct dequeue_nonprio_ctx *ctx)
+{
+	u64 time_next_packet, time_to_send;
+	struct bpf_rb_node *rb_node;
+	struct sk_buff *skb = NULL;
+	struct bpf_list_head *head;
+	struct bpf_list_node *node;
+	struct bpf_spin_lock *lock;
+	struct fq_flow_node *flow;
+	struct skb_node *skbn;
+	bool is_empty;
+	u32 *cnt;
+
+	if (q.new_flow_cnt) {
+		head = &fq_new_flows;
+		lock = &fq_new_flows_lock;
+		cnt = &q.new_flow_cnt;
+	} else if (q.old_flow_cnt) {
+		head = &fq_old_flows;
+		lock = &fq_old_flows_lock;
+		cnt = &q.old_flow_cnt;
+	} else {
+		if (q.time_next_delayed_flow != ~0ULL)
+			ctx->expire = q.time_next_delayed_flow;
+		goto break_loop;
+	}
+
+	fq_flows_remove_front(head, lock, &node, cnt);
+	if (!node)
+		goto break_loop;
+
+	flow = container_of(node, struct fq_flow_node, list_node);
+	if (flow->credit <= 0) {
+		flow->credit += q.quantum;
+		fq_flows_add_tail(&fq_old_flows, &fq_old_flows_lock, flow, &q.old_flow_cnt);
+		return NULL;
+	}
+
+	bpf_spin_lock(&flow->lock);
+	rb_node = bpf_rbtree_first(&flow->queue);
+	if (!rb_node) {
+		bpf_spin_unlock(&flow->lock);
+		is_empty = fq_flows_is_empty(&fq_old_flows, &fq_old_flows_lock);
+		if (head == &fq_new_flows && !is_empty) {
+			fq_flows_add_tail(&fq_old_flows, &fq_old_flows_lock, flow, &q.old_flow_cnt);
+		} else {
+			fq_flow_set_detached(flow);
+			bpf_obj_drop(flow);
+		}
+		return NULL;
+	}
+
+	skbn = container_of(rb_node, struct skb_node, node);
+	time_to_send = skbn->tstamp;
+
+	time_next_packet = (time_to_send > flow->time_next_packet) ?
+		time_to_send : flow->time_next_packet;
+	if (ctx->now < time_next_packet) {
+		bpf_spin_unlock(&flow->lock);
+		flow->time_next_packet = time_next_packet;
+		fq_flow_set_throttled(flow);
+		return NULL;
+	}
+
+	rb_node = bpf_rbtree_remove(&flow->queue, rb_node);
+	bpf_spin_unlock(&flow->lock);
+
+	if (!rb_node)
+		goto add_flow_and_break;
+
+	skbn = container_of(rb_node, struct skb_node, node);
+	skb = bpf_kptr_xchg(&skbn->skb, skb);
+	bpf_obj_drop(skbn);
+
+	if (!skb)
+		goto add_flow_and_break;
+
+	flow->credit -= qdisc_skb_cb(skb)->pkt_len;
+	flow->qlen--;
+
+add_flow_and_break:
+	fq_flows_add_head(head, lock, flow, cnt);
+
+break_loop:
+	ctx->stop_iter = true;
+	return skb;
+}
+
+static struct sk_buff *fq_dequeue_prio(void)
+{
+	struct fq_flow_node *flow = NULL;
+	struct fq_stashed_flow *sflow;
+	struct bpf_rb_node *rb_node;
+	struct sk_buff *skb = NULL;
+	struct skb_node *skbn;
+	u64 hash = 0;
+
+	sflow = bpf_map_lookup_elem(&fq_prio_flows, &hash);
+	if (!sflow)
+		return NULL;
+
+	flow = bpf_kptr_xchg(&sflow->flow, flow);
+	if (!flow)
+		return NULL;
+
+	bpf_spin_lock(&flow->lock);
+	rb_node = bpf_rbtree_first(&flow->queue);
+	if (!rb_node) {
+		bpf_spin_unlock(&flow->lock);
+		goto out;
+	}
+
+	skbn = container_of(rb_node, struct skb_node, node);
+	rb_node = bpf_rbtree_remove(&flow->queue, &skbn->node);
+	bpf_spin_unlock(&flow->lock);
+
+	if (!rb_node)
+		goto out;
+
+	skbn = container_of(rb_node, struct skb_node, node);
+	skb = bpf_kptr_xchg(&skbn->skb, skb);
+	bpf_obj_drop(skbn);
+
+out:
+	bpf_kptr_xchg_back(&sflow->flow, flow);
+
+	return skb;
+}
+
+SEC("struct_ops/bpf_fq_dequeue")
+struct sk_buff *BPF_PROG(bpf_fq_dequeue, struct Qdisc *sch)
+{
+	struct dequeue_nonprio_ctx cb_ctx = {};
+	struct sk_buff *skb = NULL;
+	int i;
+
+	if (!sch->q.qlen)
+		goto out;
+
+	skb = fq_dequeue_prio();
+	if (skb)
+		goto dequeue;
+
+	q.ktime_cache = cb_ctx.now = bpf_ktime_get_ns();
+	fq_check_throttled(q.ktime_cache);
+	bpf_for(i, 0, sch->limit) {
+		skb = fq_dequeue_nonprio_flows(i, &cb_ctx);
+		if (cb_ctx.stop_iter)
+			break;
+	};
+
+	if (skb) {
+dequeue:
+		sch->q.qlen--;
+		sch->qstats.backlog -= qdisc_pkt_len(skb);
+		bpf_qdisc_bstats_update(sch, skb);
+		return skb;
+	}
+
+	if (cb_ctx.expire)
+		bpf_qdisc_watchdog_schedule(sch, cb_ctx.expire, q.timer_slack);
+out:
+	return NULL;
+}
+
+static int fq_remove_flows_in_list(u32 index, void *ctx)
+{
+	struct bpf_list_node *node;
+	struct fq_flow_node *flow;
+
+	bpf_spin_lock(&fq_new_flows_lock);
+	node = bpf_list_pop_front(&fq_new_flows);
+	bpf_spin_unlock(&fq_new_flows_lock);
+	if (!node) {
+		bpf_spin_lock(&fq_old_flows_lock);
+		node = bpf_list_pop_front(&fq_old_flows);
+		bpf_spin_unlock(&fq_old_flows_lock);
+		if (!node)
+			return 1;
+	}
+
+	flow = container_of(node, struct fq_flow_node, list_node);
+	bpf_obj_drop(flow);
+
+	return 0;
+}
+
+extern unsigned CONFIG_HZ __kconfig;
+
+/* limit number of collected flows per round */
+#define FQ_GC_MAX 8
+#define FQ_GC_AGE (3*CONFIG_HZ)
+
+static bool fq_gc_candidate(struct fq_flow_node *flow)
+{
+	u64 jiffies = bpf_jiffies64();
+
+	return fq_flow_is_detached(flow) &&
+	       ((s64)(jiffies - (flow->age + FQ_GC_AGE)) > 0);
+}
+
+static int
+fq_remove_flows(struct bpf_map *flow_map, u64 *hash,
+		struct fq_stashed_flow *sflow, struct remove_flows_ctx *ctx)
+{
+	if (sflow->flow &&
+	    (!ctx->gc_only || fq_gc_candidate(sflow->flow))) {
+		bpf_map_delete_elem(flow_map, hash);
+		ctx->reset_cnt++;
+	}
+
+	return ctx->reset_cnt < ctx->reset_max ? 0 : 1;
+}
+
+static void fq_gc(void)
+{
+	struct remove_flows_ctx cb_ctx = {
+		.gc_only = true,
+		.reset_cnt = 0,
+		.reset_max = FQ_GC_MAX,
+	};
+
+	bpf_for_each_map_elem(&fq_nonprio_flows, fq_remove_flows, &cb_ctx, 0);
+}
+
+SEC("struct_ops/bpf_fq_reset")
+void BPF_PROG(bpf_fq_reset, struct Qdisc *sch)
+{
+	struct unset_throttled_flows_ctx utf_ctx = {
+		.unset_all = true,
+	};
+	struct remove_flows_ctx rf_ctx = {
+		.gc_only = false,
+		.reset_cnt = 0,
+		.reset_max = NUM_QUEUE,
+	};
+	struct fq_stashed_flow *sflow;
+	u64 hash = 0;
+
+	sch->q.qlen = 0;
+	sch->qstats.backlog = 0;
+
+	bpf_for_each_map_elem(&fq_nonprio_flows, fq_remove_flows, &rf_ctx, 0);
+
+	rf_ctx.reset_cnt = 0;
+	bpf_for_each_map_elem(&fq_prio_flows, fq_remove_flows, &rf_ctx, 0);
+	fq_new_flow(&fq_prio_flows, &sflow, hash);
+
+	bpf_loop(NUM_QUEUE, fq_remove_flows_in_list, NULL, 0);
+	q.new_flow_cnt = 0;
+	q.old_flow_cnt = 0;
+
+	bpf_loop(NUM_QUEUE, fq_unset_throttled_flows, &utf_ctx, 0);
+}
+
+SEC("struct_ops/bpf_fq_init")
+int BPF_PROG(bpf_fq_init, struct Qdisc *sch, struct nlattr *opt,
+	     struct netlink_ext_ack *extack)
+{
+	struct net_device *dev = sch->dev_queue->dev;
+	u32 psched_mtu = dev->mtu + dev->hard_header_len;
+	struct fq_stashed_flow *sflow;
+	u64 hash = 0;
+
+	if (fq_new_flow(&fq_prio_flows, &sflow, hash) < 0)
+		return -ENOMEM;
+
+	sch->limit = 10000;
+	q.initial_quantum = 10 * psched_mtu;
+	q.quantum = 2 * psched_mtu;
+	q.flow_refill_delay = 40;
+	q.flow_plimit = 100;
+	q.horizon = 10ULL * NSEC_PER_SEC;
+	q.horizon_drop = 1;
+	q.orphan_mask = 1024 - 1;
+	q.timer_slack = 10 * NSEC_PER_USEC;
+	q.time_next_delayed_flow = ~0ULL;
+	q.unthrottle_latency_ns = 0ULL;
+	q.new_flow_cnt = 0;
+	q.old_flow_cnt = 0;
+
+	return 0;
+}
+
+SEC("struct_ops")
+void BPF_PROG(bpf_fq_destroy, struct Qdisc *sch)
+{
+}
+
+SEC(".struct_ops")
+struct Qdisc_ops fq = {
+	.enqueue   = (void *)bpf_fq_enqueue,
+	.dequeue   = (void *)bpf_fq_dequeue,
+	.reset     = (void *)bpf_fq_reset,
+	.init      = (void *)bpf_fq_init,
+	.destroy   = (void *)bpf_fq_destroy,
+	.id        = "bpf_fq",
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_smc.c b/tools/testing/selftests/bpf/progs/bpf_smc.c
new file mode 100644
index 000000000000..70d8b08f5914
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_smc.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_tracing_net.h"
+
+char _license[] SEC("license") = "GPL";
+
+enum {
+	BPF_SMC_LISTEN	= 10,
+};
+
+struct smc_sock___local {
+	struct sock sk;
+	struct smc_sock *listen_smc;
+	bool use_fallback;
+} __attribute__((preserve_access_index));
+
+int smc_cnt = 0;
+int fallback_cnt = 0;
+
+SEC("fentry/smc_release")
+int BPF_PROG(bpf_smc_release, struct socket *sock)
+{
+	/* only count from one side (client) */
+	if (sock->sk->__sk_common.skc_state == BPF_SMC_LISTEN)
+		return 0;
+	smc_cnt++;
+	return 0;
+}
+
+SEC("fentry/smc_switch_to_fallback")
+int BPF_PROG(bpf_smc_switch_to_fallback, struct smc_sock___local *smc)
+{
+	/* only count from one side (client) */
+	if (smc && !smc->listen_smc)
+		fallback_cnt++;
+	return 0;
+}
+
+/* go with default value if no strat was found */
+bool default_ip_strat_value = true;
+
+struct smc_policy_ip_key {
+	__u32	sip;
+	__u32	dip;
+};
+
+struct smc_policy_ip_value {
+	__u8	mode;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(key_size, sizeof(struct smc_policy_ip_key));
+	__uint(value_size, sizeof(struct smc_policy_ip_value));
+	__uint(max_entries, 128);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} smc_policy_ip SEC(".maps");
+
+static bool smc_check(__u32 src, __u32 dst)
+{
+	struct smc_policy_ip_value *value;
+	struct smc_policy_ip_key key = {
+		.sip = src,
+		.dip = dst,
+	};
+
+	value = bpf_map_lookup_elem(&smc_policy_ip, &key);
+	return value ? value->mode : default_ip_strat_value;
+}
+
+SEC("fmod_ret/update_socket_protocol")
+int BPF_PROG(smc_run, int family, int type, int protocol)
+{
+	struct task_struct *task;
+
+	if (family != AF_INET && family != AF_INET6)
+		return protocol;
+
+	if ((type & 0xf) != SOCK_STREAM)
+		return protocol;
+
+	if (protocol != 0 && protocol != IPPROTO_TCP)
+		return protocol;
+
+	task = bpf_get_current_task_btf();
+	/* Prevent from affecting other tests */
+	if (!task || !task->nsproxy->net_ns->smc.hs_ctrl)
+		return protocol;
+
+	return IPPROTO_SMC;
+}
+
+SEC("struct_ops")
+int BPF_PROG(bpf_smc_set_tcp_option_cond, const struct tcp_sock *tp,
+	     struct inet_request_sock *ireq)
+{
+	return smc_check(ireq->req.__req_common.skc_daddr,
+			 ireq->req.__req_common.skc_rcv_saddr);
+}
+
+SEC("struct_ops")
+int BPF_PROG(bpf_smc_set_tcp_option, struct tcp_sock *tp)
+{
+	return smc_check(tp->inet_conn.icsk_inet.sk.__sk_common.skc_rcv_saddr,
+			 tp->inet_conn.icsk_inet.sk.__sk_common.skc_daddr);
+}
+
+SEC(".struct_ops")
+struct smc_hs_ctrl  linkcheck = {
+	.name		= "linkcheck",
+	.syn_option	= (void *)bpf_smc_set_tcp_option,
+	.synack_option	= (void *)bpf_smc_set_tcp_option_cond,
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
new file mode 100644
index 000000000000..9e7d9674ce2a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2022 Sony Group Corporation */
+#include <vmlinux.h>
+
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+int arg1 = 0;
+unsigned long arg2 = 0;
+unsigned long arg3 = 0;
+unsigned long arg4_cx = 0;
+unsigned long arg4 = 0;
+unsigned long arg5 = 0;
+
+int arg1_core = 0;
+unsigned long arg2_core = 0;
+unsigned long arg3_core = 0;
+unsigned long arg4_core_cx = 0;
+unsigned long arg4_core = 0;
+unsigned long arg5_core = 0;
+
+int option_syscall = 0;
+unsigned long arg2_syscall = 0;
+unsigned long arg3_syscall = 0;
+unsigned long arg4_syscall = 0;
+unsigned long arg5_syscall = 0;
+
+const volatile pid_t filter_pid = 0;
+
+SEC("kprobe/" SYS_PREFIX "sys_prctl")
+int BPF_KPROBE(handle_sys_prctl)
+{
+	struct pt_regs *real_regs;
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+	unsigned long tmp = 0;
+
+	if (pid != filter_pid)
+		return 0;
+
+	real_regs = PT_REGS_SYSCALL_REGS(ctx);
+
+	/* test for PT_REGS_PARM */
+
+	bpf_probe_read_kernel(&tmp, sizeof(tmp), &PT_REGS_PARM1_SYSCALL(real_regs));
+	arg1 = tmp;
+	bpf_probe_read_kernel(&arg2, sizeof(arg2), &PT_REGS_PARM2_SYSCALL(real_regs));
+	bpf_probe_read_kernel(&arg3, sizeof(arg3), &PT_REGS_PARM3_SYSCALL(real_regs));
+	bpf_probe_read_kernel(&arg4_cx, sizeof(arg4_cx), &PT_REGS_PARM4(real_regs));
+	bpf_probe_read_kernel(&arg4, sizeof(arg4), &PT_REGS_PARM4_SYSCALL(real_regs));
+	bpf_probe_read_kernel(&arg5, sizeof(arg5), &PT_REGS_PARM5_SYSCALL(real_regs));
+
+	/* test for the CORE variant of PT_REGS_PARM */
+	arg1_core = PT_REGS_PARM1_CORE_SYSCALL(real_regs);
+	arg2_core = PT_REGS_PARM2_CORE_SYSCALL(real_regs);
+	arg3_core = PT_REGS_PARM3_CORE_SYSCALL(real_regs);
+	arg4_core_cx = PT_REGS_PARM4_CORE(real_regs);
+	arg4_core = PT_REGS_PARM4_CORE_SYSCALL(real_regs);
+	arg5_core = PT_REGS_PARM5_CORE_SYSCALL(real_regs);
+
+	return 0;
+}
+
+SEC("ksyscall/prctl")
+int BPF_KSYSCALL(prctl_enter, int option, unsigned long arg2,
+		 unsigned long arg3, unsigned long arg4, unsigned long arg5)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != filter_pid)
+		return 0;
+
+	option_syscall = option;
+	arg2_syscall = arg2;
+	arg3_syscall = arg3;
+	arg4_syscall = arg4;
+	arg5_syscall = arg5;
+	return 0;
+}
+
+__u64 splice_fd_in;
+__u64 splice_off_in;
+__u64 splice_fd_out;
+__u64 splice_off_out;
+__u64 splice_len;
+__u64 splice_flags;
+
+SEC("ksyscall/splice")
+int BPF_KSYSCALL(splice_enter, int fd_in, loff_t *off_in, int fd_out,
+		 loff_t *off_out, size_t len, unsigned int flags)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != filter_pid)
+		return 0;
+
+	splice_fd_in = fd_in;
+	splice_off_in = (__u64)off_in;
+	splice_fd_out = fd_out;
+	splice_off_out = (__u64)off_out;
+	splice_len = len;
+	splice_flags = flags;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c b/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c
new file mode 100644
index 000000000000..8a7a4c1b54e8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "X";
+
+SEC("struct_ops")
+void BPF_PROG(nogpltcp_init, struct sock *sk)
+{
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops bpf_nogpltcp = {
+	.init           = (void *)nogpltcp_init,
+	.name           = "bpf_nogpltcp",
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_test_utils.h b/tools/testing/selftests/bpf/progs/bpf_test_utils.h
new file mode 100644
index 000000000000..f4e67b492dd2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_test_utils.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BPF_TEST_UTILS_H__
+#define __BPF_TEST_UTILS_H__
+
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+/* Clobber as many native registers and stack slots as possible. */
+static __always_inline void clobber_regs_stack(void)
+{
+	char tmp_str[] = "123456789";
+	unsigned long tmp;
+
+	bpf_strtoul(tmp_str, sizeof(tmp_str), 0, &tmp);
+	__sink(tmp);
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
new file mode 100644
index 000000000000..d8dacef37c16
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
@@ -0,0 +1,194 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#ifndef __BPF_TRACING_NET_H__
+#define __BPF_TRACING_NET_H__
+
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+
+#define AF_INET			2
+#define AF_INET6		10
+
+#define SOL_SOCKET		1
+#define SO_REUSEADDR		2
+#define SO_SNDBUF		7
+#define SO_RCVBUF		8
+#define SO_KEEPALIVE		9
+#define SO_PRIORITY		12
+#define SO_REUSEPORT		15
+#if defined(__TARGET_ARCH_powerpc)
+#define SO_RCVLOWAT		16
+#else
+#define SO_RCVLOWAT		18
+#endif
+#define SO_BINDTODEVICE		25
+#define SO_MARK			36
+#define SO_MAX_PACING_RATE	47
+#define SO_BINDTOIFINDEX	62
+#define SO_TXREHASH		74
+#define __SO_ACCEPTCON		(1 << 16)
+
+#define IP_TOS			1
+
+#define SOL_IPV6		41
+#define IPV6_TCLASS		67
+#define IPV6_AUTOFLOWLABEL	70
+
+#define TC_ACT_UNSPEC		(-1)
+#define TC_ACT_OK		0
+#define TC_ACT_SHOT		2
+
+#define SOL_TCP			6
+#define TCP_NODELAY		1
+#define TCP_MAXSEG		2
+#define TCP_KEEPIDLE		4
+#define TCP_KEEPINTVL		5
+#define TCP_KEEPCNT		6
+#define TCP_SYNCNT		7
+#define TCP_WINDOW_CLAMP	10
+#define TCP_CONGESTION		13
+#define TCP_THIN_LINEAR_TIMEOUTS	16
+#define TCP_USER_TIMEOUT	18
+#define TCP_NOTSENT_LOWAT	25
+#define TCP_SAVE_SYN		27
+#define TCP_SAVED_SYN		28
+#define TCP_CA_NAME_MAX		16
+#define TCP_NAGLE_OFF		1
+#define TCP_RTO_MAX_MS		44
+
+#define TCP_ECN_OK              1
+#define TCP_ECN_QUEUE_CWR       2
+#define TCP_ECN_DEMAND_CWR      4
+#define TCP_ECN_SEEN            8
+
+#define TCP_CONG_NEEDS_ECN     0x2
+
+#define ICSK_TIME_RETRANS	1
+#define ICSK_TIME_PROBE0	3
+#define ICSK_TIME_LOSS_PROBE	5
+#define ICSK_TIME_REO_TIMEOUT	6
+
+#define ETH_ALEN		6
+#define ETH_HLEN		14
+#define ETH_P_IP		0x0800
+#define ETH_P_IPV6		0x86DD
+
+#define NEXTHDR_TCP		6
+
+#define TCPOPT_NOP		1
+#define TCPOPT_EOL		0
+#define TCPOPT_MSS		2
+#define TCPOPT_WINDOW		3
+#define TCPOPT_TIMESTAMP	8
+#define TCPOPT_SACK_PERM	4
+
+#define TCPOLEN_MSS		4
+#define TCPOLEN_WINDOW		3
+#define TCPOLEN_TIMESTAMP	10
+#define TCPOLEN_SACK_PERM	2
+
+#define CHECKSUM_NONE		0
+#define CHECKSUM_PARTIAL	3
+
+#define IFNAMSIZ		16
+
+#define RTF_GATEWAY		0x0002
+
+#define TCP_INFINITE_SSTHRESH	0x7fffffff
+#define TCP_PINGPONG_THRESH	3
+
+#define FLAG_DATA_ACKED 0x04 /* This ACK acknowledged new data.		*/
+#define FLAG_SYN_ACKED 0x10 /* This ACK acknowledged SYN.		*/
+#define FLAG_DATA_SACKED 0x20 /* New SACK.				*/
+#define FLAG_SND_UNA_ADVANCED \
+	0x400 /* Snd_una was changed (!= FLAG_DATA_ACKED) */
+#define FLAG_ACKED (FLAG_DATA_ACKED | FLAG_SYN_ACKED)
+#define FLAG_FORWARD_PROGRESS (FLAG_ACKED | FLAG_DATA_SACKED)
+
+#define fib_nh_dev		nh_common.nhc_dev
+#define fib_nh_gw_family	nh_common.nhc_gw_family
+#define fib_nh_gw6		nh_common.nhc_gw.ipv6
+
+#define inet_daddr		sk.__sk_common.skc_daddr
+#define inet_rcv_saddr		sk.__sk_common.skc_rcv_saddr
+#define inet_dport		sk.__sk_common.skc_dport
+
+#define udp_portaddr_hash	inet.sk.__sk_common.skc_u16hashes[1]
+
+#define ir_loc_addr		req.__req_common.skc_rcv_saddr
+#define ir_num			req.__req_common.skc_num
+#define ir_rmt_addr		req.__req_common.skc_daddr
+#define ir_rmt_port		req.__req_common.skc_dport
+#define ir_v6_rmt_addr		req.__req_common.skc_v6_daddr
+#define ir_v6_loc_addr		req.__req_common.skc_v6_rcv_saddr
+
+#define sk_num			__sk_common.skc_num
+#define sk_dport		__sk_common.skc_dport
+#define sk_family		__sk_common.skc_family
+#define sk_rmem_alloc		sk_backlog.rmem_alloc
+#define sk_refcnt		__sk_common.skc_refcnt
+#define sk_state		__sk_common.skc_state
+#define sk_net			__sk_common.skc_net
+#define sk_rcv_saddr		__sk_common.skc_rcv_saddr
+#define sk_v6_daddr		__sk_common.skc_v6_daddr
+#define sk_v6_rcv_saddr		__sk_common.skc_v6_rcv_saddr
+#define sk_flags		__sk_common.skc_flags
+#define sk_reuse		__sk_common.skc_reuse
+#define sk_cookie		__sk_common.skc_cookie
+
+#define s6_addr32		in6_u.u6_addr32
+
+#define tw_daddr		__tw_common.skc_daddr
+#define tw_rcv_saddr		__tw_common.skc_rcv_saddr
+#define tw_dport		__tw_common.skc_dport
+#define tw_refcnt		__tw_common.skc_refcnt
+#define tw_v6_daddr		__tw_common.skc_v6_daddr
+#define tw_v6_rcv_saddr		__tw_common.skc_v6_rcv_saddr
+
+#define tcp_jiffies32 ((__u32)bpf_jiffies64())
+
+#ifndef min
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#endif
+#ifndef max
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+static inline bool before(__u32 seq1, __u32 seq2)
+{
+	return (__s32)(seq1 - seq2) < 0;
+}
+
+#define after(seq2, seq1) before(seq1, seq2)
+
+static inline struct inet_connection_sock *inet_csk(const struct sock *sk)
+{
+	return (struct inet_connection_sock *)sk;
+}
+
+static inline void *inet_csk_ca(const struct sock *sk)
+{
+	return (void *)inet_csk(sk)->icsk_ca_priv;
+}
+
+static inline struct tcp_sock *tcp_sk(const struct sock *sk)
+{
+	return (struct tcp_sock *)sk;
+}
+
+static inline bool tcp_in_slow_start(const struct tcp_sock *tp)
+{
+	return tp->snd_cwnd < tp->snd_ssthresh;
+}
+
+static inline bool tcp_is_cwnd_limited(const struct sock *sk)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+
+	/* If in slow start, ensure cwnd grows to twice what was ACKed. */
+	if (tcp_in_slow_start(tp))
+		return tp->snd_cwnd < 2 * tp->max_packets_out;
+
+	return !!BPF_CORE_READ_BITFIELD(tp, is_cwnd_limited);
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/bprm_opts.c b/tools/testing/selftests/bpf/progs/bprm_opts.c
new file mode 100644
index 000000000000..418d9c6d4952
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bprm_opts.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <linux/bpf.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} secure_exec_task_map SEC(".maps");
+
+SEC("lsm/bprm_creds_for_exec")
+int BPF_PROG(secure_exec, struct linux_binprm *bprm)
+{
+	int *secureexec;
+
+	secureexec = bpf_task_storage_get(&secure_exec_task_map,
+				   bpf_get_current_task_btf(), 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+
+	if (secureexec && *secureexec)
+		bpf_bprm_opts_set(bprm, BPF_F_BPRM_SECUREEXEC);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays.c
new file mode 100644
index 000000000000..018ed7fbba3a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_dim.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_dim.c
new file mode 100644
index 000000000000..13d662c57014
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_dim.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___diff_arr_dim x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_val_sz.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_val_sz.c
new file mode 100644
index 000000000000..a351f418c85d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___diff_arr_val_sz.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___diff_arr_val_sz x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___equiv_zero_sz_arr.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___equiv_zero_sz_arr.c
new file mode 100644
index 000000000000..65eac371b061
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___equiv_zero_sz_arr.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___equiv_zero_sz_arr x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_signed_arr_elem_sz.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_signed_arr_elem_sz.c
new file mode 100644
index 000000000000..21a560427b10
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_signed_arr_elem_sz.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_bad_signed_arr_elem_sz x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_zero_sz_arr.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_zero_sz_arr.c
new file mode 100644
index 000000000000..ecda2b545ac2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_bad_zero_sz_arr.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_bad_zero_sz_arr x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_non_array.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_non_array.c
new file mode 100644
index 000000000000..a8735009becc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_non_array.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_non_array x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_shallow.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_shallow.c
new file mode 100644
index 000000000000..2a67c28b1e75
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_shallow.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_too_shallow x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_small.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_small.c
new file mode 100644
index 000000000000..1142c08c925f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_too_small.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_too_small x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_wrong_val_type.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_wrong_val_type.c
new file mode 100644
index 000000000000..f5a7c832d0f2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___err_wrong_val_type.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___err_wrong_val_type x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___fixed_arr.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___fixed_arr.c
new file mode 100644
index 000000000000..fe1d01232c22
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_arrays___fixed_arr.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_arrays___fixed_arr x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields.c
new file mode 100644
index 000000000000..cff6f1836cc5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_bitfields x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bit_sz_change.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bit_sz_change.c
new file mode 100644
index 000000000000..a1cd157d5451
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bit_sz_change.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_bitfields___bit_sz_change x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bitfield_vs_int.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bitfield_vs_int.c
new file mode 100644
index 000000000000..3f2c7b07c456
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___bitfield_vs_int.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_bitfields___bitfield_vs_int x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___err_too_big_bitfield.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___err_too_big_bitfield.c
new file mode 100644
index 000000000000..f9746d6be399
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___err_too_big_bitfield.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_bitfields___err_too_big_bitfield x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___just_big_enough.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___just_big_enough.c
new file mode 100644
index 000000000000..e7c75a6953dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_bitfields___just_big_enough.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_bitfields___just_big_enough x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
new file mode 100644
index 000000000000..888e79db6a77
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
new file mode 100644
index 000000000000..194749130d87
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
new file mode 100644
index 000000000000..3d732d4193e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___err_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
new file mode 100644
index 000000000000..17cf5d6a848d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___val3_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval.c
new file mode 100644
index 000000000000..48e62f3f074f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enumval x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___diff.c
new file mode 100644
index 000000000000..53e5e5a76888
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enumval___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___err_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___err_missing.c
new file mode 100644
index 000000000000..d024fb2ac06e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___err_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enumval___err_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___val3_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___val3_missing.c
new file mode 100644
index 000000000000..9de6595d250c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enumval___val3_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enumval___val3_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_existence.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence.c
new file mode 100644
index 000000000000..0b62315ad46c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_existence x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___minimal.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___minimal.c
new file mode 100644
index 000000000000..aec2dec20e90
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___minimal.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_existence___minimal x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___wrong_field_defs.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___wrong_field_defs.c
new file mode 100644
index 000000000000..d14b496190c3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_existence___wrong_field_defs.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_existence___wrong_field_defs x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors.c
new file mode 100644
index 000000000000..b74455b91227
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_flavors x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors__err_wrong_name.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors__err_wrong_name.c
new file mode 100644
index 000000000000..7b6035f86ee6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_flavors__err_wrong_name.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_flavors__err_wrong_name x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_ints.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints.c
new file mode 100644
index 000000000000..7d0f041042c5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_ints x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___bool.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___bool.c
new file mode 100644
index 000000000000..f9359450186e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___bool.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_ints___bool x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___reverse_sign.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___reverse_sign.c
new file mode 100644
index 000000000000..aafb1c5819d7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_ints___reverse_sign.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_ints___reverse_sign x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_misc.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_misc.c
new file mode 100644
index 000000000000..ed9ad8b5b4f8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_misc.c
@@ -0,0 +1,5 @@
+#include "core_reloc_types.h"
+
+void f1(struct core_reloc_misc___a x) {}
+void f2(struct core_reloc_misc___b x) {}
+void f3(struct core_reloc_misc_extensible x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_mods.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods.c
new file mode 100644
index 000000000000..124197a2e813
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_mods x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___mod_swap.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___mod_swap.c
new file mode 100644
index 000000000000..f8a6592ca75f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___mod_swap.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_mods___mod_swap x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___typedefs.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___typedefs.c
new file mode 100644
index 000000000000..5c0d73687247
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_mods___typedefs.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_mods___typedefs x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting.c
new file mode 100644
index 000000000000..4480fcc0f183
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___anon_embed.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___anon_embed.c
new file mode 100644
index 000000000000..13e108f76ece
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___anon_embed.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___anon_embed x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___dup_compat_types.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___dup_compat_types.c
new file mode 100644
index 000000000000..76b54fda5fbb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___dup_compat_types.c
@@ -0,0 +1,5 @@
+#include "core_reloc_types.h"
+
+void f1(struct core_reloc_nesting___dup_compat_types x) {}
+void f2(struct core_reloc_nesting___dup_compat_types__2 x) {}
+void f3(struct core_reloc_nesting___dup_compat_types__3 x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_container.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_container.c
new file mode 100644
index 000000000000..975fb95db810
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_container.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_array_container x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_field.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_field.c
new file mode 100644
index 000000000000..ad66c67e7980
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_array_field.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_array_field x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_dup_incompat_types.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_dup_incompat_types.c
new file mode 100644
index 000000000000..35c5f8da6812
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_dup_incompat_types.c
@@ -0,0 +1,4 @@
+#include "core_reloc_types.h"
+
+void f1(struct core_reloc_nesting___err_dup_incompat_types__1 x) {}
+void f2(struct core_reloc_nesting___err_dup_incompat_types__2 x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_container.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_container.c
new file mode 100644
index 000000000000..142e332041db
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_container.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_missing_container x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_field.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_field.c
new file mode 100644
index 000000000000..efcae167fab9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_missing_field.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_missing_field x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_nonstruct_container.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_nonstruct_container.c
new file mode 100644
index 000000000000..97aaaedd8ada
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_nonstruct_container.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_nonstruct_container x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_partial_match_dups.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_partial_match_dups.c
new file mode 100644
index 000000000000..ffde35086e90
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_partial_match_dups.c
@@ -0,0 +1,4 @@
+#include "core_reloc_types.h"
+
+void f1(struct core_reloc_nesting___err_partial_match_dups__a x) {}
+void f2(struct core_reloc_nesting___err_partial_match_dups__b x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_too_deep.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_too_deep.c
new file mode 100644
index 000000000000..39a2fadd8e95
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___err_too_deep.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___err_too_deep x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___extra_nesting.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___extra_nesting.c
new file mode 100644
index 000000000000..a09d9dfb20df
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___extra_nesting.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___extra_nesting x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___struct_union_mixup.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___struct_union_mixup.c
new file mode 100644
index 000000000000..3d8a1a74012f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_nesting___struct_union_mixup.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_nesting___struct_union_mixup x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives.c
new file mode 100644
index 000000000000..96b90e39242a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_enum_def.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_enum_def.c
new file mode 100644
index 000000000000..6e87233a3ed0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_enum_def.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___diff_enum_def x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_func_proto.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_func_proto.c
new file mode 100644
index 000000000000..d9f48e80b9d9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_func_proto.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___diff_func_proto x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_ptr_type.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_ptr_type.c
new file mode 100644
index 000000000000..c718f75f8f3b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___diff_ptr_type.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___diff_ptr_type x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_enum.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_enum.c
new file mode 100644
index 000000000000..b8a120830891
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_enum.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___err_non_enum x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_int.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_int.c
new file mode 100644
index 000000000000..ad8b3c9aa76f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_int.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___err_non_int x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_ptr.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_ptr.c
new file mode 100644
index 000000000000..e20bc1d42d0a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_primitives___err_non_ptr.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_primitives___err_non_ptr x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr.c
new file mode 100644
index 000000000000..8da52432ba17
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_ptr_as_arr x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr___diff_sz.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr___diff_sz.c
new file mode 100644
index 000000000000..003acfc9a3e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_ptr_as_arr___diff_sz.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_ptr_as_arr___diff_sz x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_size.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_size.c
new file mode 100644
index 000000000000..3c80903da5a4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_size.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_size x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_offs.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_offs.c
new file mode 100644
index 000000000000..3824345d82ab
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_offs.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_size___diff_offs x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_sz.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_sz.c
new file mode 100644
index 000000000000..6dbd14436b52
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___diff_sz.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_size___diff_sz x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_size___err_ambiguous.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___err_ambiguous.c
new file mode 100644
index 000000000000..f3e9904df9c2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_size___err_ambiguous.c
@@ -0,0 +1,4 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_size___err_ambiguous1 x,
+       struct core_reloc_size___err_ambiguous2 y) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based.c
new file mode 100644
index 000000000000..fc3f69e58c71
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___all_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___all_missing.c
new file mode 100644
index 000000000000..51511648b4ec
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___all_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___all_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c
new file mode 100644
index 000000000000..57ae2c258928
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff_sz.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff_sz.c
new file mode 100644
index 000000000000..67db3dceb279
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff_sz.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___diff_sz x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___fn_wrong_args.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___fn_wrong_args.c
new file mode 100644
index 000000000000..b357fc65431d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___fn_wrong_args.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___fn_wrong_args x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___incompat.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___incompat.c
new file mode 100644
index 000000000000..8ddf20d33d9e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___incompat.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___incompat x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id.c
new file mode 100644
index 000000000000..abbe5bddcefd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_id x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id___missing_targets.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id___missing_targets.c
new file mode 100644
index 000000000000..24e7caf4f013
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_id___missing_targets.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_id___missing_targets x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf_data.c b/tools/testing/selftests/bpf/progs/btf_data.c
new file mode 100644
index 000000000000..baa525275bde
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_data.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+struct S {
+	int	a;
+	int	b;
+	int	c;
+};
+
+union U {
+	int	a;
+	int	b;
+	int	c;
+};
+
+struct S1 {
+	int	a;
+	int	b;
+	int	c;
+};
+
+union U1 {
+	int	a;
+	int	b;
+	int	c;
+};
+
+typedef int T;
+typedef int S;
+typedef int U;
+typedef int T1;
+typedef int S1;
+typedef int U1;
+
+struct root_struct {
+	S		m_1;
+	T		m_2;
+	U		m_3;
+	S1		m_4;
+	T1		m_5;
+	U1		m_6;
+	struct S	m_7;
+	struct S1	m_8;
+	union  U	m_9;
+	union  U1	m_10;
+};
+
+int func(struct root_struct *root)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c
new file mode 100644
index 000000000000..e01690618e1e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_bitfields.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper tests for bitfield.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+#include <stdbool.h>
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct bitfields_only_mixed_types {
+ *	int a: 3;
+ *	long b: 2;
+ *	_Bool c: 1;
+ *	enum {
+ *		A = 0,
+ *		B = 1,
+ *	} d: 1;
+ *	short e: 5;
+ *	int: 20;
+ *	unsigned int f: 30;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct bitfields_only_mixed_types {
+	int a: 3;
+	long b: 2;
+	bool c: 1; /* it's really a _Bool type */
+	enum {
+		A, /* A = 0, dumper is very explicit */
+		B, /* B = 1, same */
+	} d: 1;
+	short e: 5;
+	/* 20-bit padding here */
+	unsigned f: 30; /* this gets aligned on 4-byte boundary */
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct bitfield_mixed_with_others {
+ *	char: 4;
+ *	int a: 4;
+ *	short b;
+ *	long c;
+ *	long d: 8;
+ *	int e;
+ *	int f;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+struct bitfield_mixed_with_others {
+	char: 4; /* char is enough as a backing field */
+	int a: 4;
+	/* 8-bit implicit padding */
+	short b; /* combined with previous bitfield */
+	/* 4 more bytes of implicit padding */
+	long c;
+	long d: 8;
+	/* 24 bits implicit padding */
+	int e; /* combined with previous bitfield */
+	int f;
+	/* 4 bytes of padding */
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct bitfield_flushed {
+ *	int a: 4;
+ *	long: 60;
+ *	long b: 16;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+struct bitfield_flushed {
+	int a: 4;
+	long: 0; /* flush until next natural alignment boundary */
+	long b: 16;
+};
+
+int f(struct {
+	struct bitfields_only_mixed_types _1;
+	struct bitfield_mixed_with_others _2;
+	struct bitfield_flushed _3;
+} *_)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_multidim.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_multidim.c
new file mode 100644
index 000000000000..a657651eba52
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_multidim.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper test for multi-dimensional array output.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+typedef int arr_t[2];
+
+typedef int multiarr_t[3][4][5];
+
+typedef int *ptr_arr_t[6];
+
+typedef int *ptr_multiarr_t[7][8][9][10];
+
+typedef int * (*fn_ptr_arr_t[11])(void);
+
+typedef int * (*fn_ptr_multiarr_t[12][13])(void);
+
+struct root_struct {
+	arr_t _1;
+	multiarr_t _2;
+	ptr_arr_t _3;
+	ptr_multiarr_t _4;
+	fn_ptr_arr_t _5;
+	fn_ptr_multiarr_t _6;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct root_struct *s)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c
new file mode 100644
index 000000000000..92a4ad428710
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_namespacing.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper test validating no name versioning happens between
+ * independent C namespaces (struct/union/enum vs typedef/enum values).
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct S {
+	int S;
+	int U;
+};
+
+typedef struct S S;
+
+union U {
+	int S;
+	int U;
+};
+
+typedef union U U;
+
+enum E {
+	V = 0,
+};
+
+typedef enum E E;
+
+struct A {};
+
+union B {};
+
+enum C {
+	A = 1,
+	B = 2,
+	C = 3,
+};
+
+struct X {};
+
+union Y {};
+
+enum Z;
+
+typedef int X;
+
+typedef int Y;
+
+typedef int Z;
+
+/*------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct {
+	struct S _1;
+	S _2;
+	union U _3;
+	U _4;
+	enum E _5;
+	E _6;
+	struct A a;
+	union B b;
+	enum C c;
+	struct X x;
+	union Y y;
+	enum Z *z;
+	X xx;
+	Y yy;
+	Z zz;
+} *_)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_ordering.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_ordering.c
new file mode 100644
index 000000000000..7c95702ee4cb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_ordering.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper test for topological sorting of dependent structs.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct s1 {};
+
+struct s3;
+
+struct s4;
+
+struct s2 {
+	struct s2 *s2;
+	struct s3 *s3;
+	struct s4 *s4;
+};
+
+struct s3 {
+	struct s1 s1;
+	struct s2 s2;
+};
+
+struct s4 {
+	struct s1 s1;
+	struct s3 s3;
+};
+
+struct list_head {
+	struct list_head *next;
+	struct list_head *prev;
+};
+
+struct hlist_node {
+	struct hlist_node *next;
+	struct hlist_node **pprev;
+};
+
+struct hlist_head {
+	struct hlist_node *first;
+};
+
+struct callback_head {
+	struct callback_head *next;
+	void (*func)(struct callback_head *);
+};
+
+struct root_struct {
+	struct s4 s4;
+	struct list_head l;
+	struct hlist_node n;
+	struct hlist_head h;
+	struct callback_head cb;
+};
+
+/*------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct root_struct *root)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c
new file mode 100644
index 000000000000..7998f27df7dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_packing.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper tests for struct packing determination.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct packed_trailing_space {
+	int a;
+	short b;
+} __attribute__((packed));
+
+struct non_packed_trailing_space {
+	int a;
+	short b;
+};
+
+struct packed_fields {
+	short a;
+	int b;
+} __attribute__((packed));
+
+struct non_packed_fields {
+	short a;
+	int b;
+};
+
+struct nested_packed {
+	char: 4;
+	int a: 4;
+	long b;
+	struct {
+		char c;
+		int d;
+	} __attribute__((packed)) e;
+} __attribute__((packed));
+
+union union_is_never_packed {
+	int a: 4;
+	char b;
+	char c: 1;
+};
+
+union union_does_not_need_packing {
+	struct {
+		long a;
+		int b;
+	} __attribute__((packed));
+	int c;
+};
+
+union jump_code_union {
+	char code[5];
+	struct {
+		char jump;
+		int offset;
+	} __attribute__((packed));
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct nested_packed_but_aligned_struct {
+ *	int x1;
+ *	int x2;
+ *};
+ *
+ *struct outer_implicitly_packed_struct {
+ *	char y1;
+ *	struct nested_packed_but_aligned_struct y2;
+ *} __attribute__((packed));
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct nested_packed_but_aligned_struct {
+	int x1;
+	int x2;
+} __attribute__((packed));
+
+struct outer_implicitly_packed_struct {
+	char y1;
+	struct nested_packed_but_aligned_struct y2;
+};
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct usb_ss_ep_comp_descriptor {
+ *	char: 8;
+ *	char bDescriptorType;
+ *	char bMaxBurst;
+ *	short wBytesPerInterval;
+ *};
+ *
+ *struct usb_host_endpoint {
+ *	long: 64;
+ *	char: 8;
+ *	struct usb_ss_ep_comp_descriptor ss_ep_comp;
+ *	long: 0;
+ *} __attribute__((packed));
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct usb_ss_ep_comp_descriptor {
+	char: 8;
+	char bDescriptorType;
+	char bMaxBurst;
+	int: 0;
+	short wBytesPerInterval;
+} __attribute__((packed));
+
+struct usb_host_endpoint {
+	long: 64;
+	char: 8;
+	struct usb_ss_ep_comp_descriptor ss_ep_comp;
+	long: 0;
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct nested_packed_struct {
+	int a;
+	char b;
+} __attribute__((packed));
+
+struct outer_nonpacked_struct {
+	short a;
+	struct nested_packed_struct b;
+};
+
+struct outer_packed_struct {
+	short a;
+	struct nested_packed_struct b;
+} __attribute__((packed));
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct {
+	struct packed_trailing_space _1;
+	struct non_packed_trailing_space _2;
+	struct packed_fields _3;
+	struct non_packed_fields _4;
+	struct nested_packed _5;
+	union union_is_never_packed _6;
+	union union_does_not_need_packing _7;
+	union jump_code_union _8;
+	struct outer_implicitly_packed_struct _9;
+	struct usb_host_endpoint _10;
+	struct outer_nonpacked_struct _11;
+	struct outer_packed_struct _12;
+} *_)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
new file mode 100644
index 000000000000..79276fbe454a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_padding.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper tests for implicit and explicit padding between fields and
+ * at the end of a struct.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct padded_implicitly {
+	int a;
+	long b;
+	char c;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct padded_explicitly {
+ *	int a;
+ *	long: 0;
+ *	int b;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct padded_explicitly {
+	int a;
+	int: 1; /* algo will emit aligning `long: 0;` here */
+	int b;
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct padded_a_lot {
+	int a;
+	long: 64;
+	long: 64;
+	int b;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct padded_cache_line {
+ *	int a;
+ *	long: 64;
+ *	long: 64;
+ *	long: 64;
+ *	int b;
+ *	long: 64;
+ *	long: 64;
+ *	long: 64;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct padded_cache_line {
+	int a;
+	int b __attribute__((aligned(32)));
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct zone_padding {
+ *	char x[0];
+ *};
+ *
+ *struct zone {
+ *	int a;
+ *	short b;
+ *	long: 0;
+ *	struct zone_padding __pad__;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+struct zone_padding {
+	char x[0];
+} __attribute__((__aligned__(8)));
+
+struct zone {
+	int a;
+	short b;
+	struct zone_padding __pad__;
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct padding_wo_named_members {
+	long: 64;
+	long: 64;
+};
+
+struct padding_weird_1 {
+	int a;
+	long: 64;
+	short: 16;
+	short b;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *struct padding_weird_2 {
+ *	long: 56;
+ *	char a;
+ *	long: 56;
+ *	char b;
+ *	char: 8;
+ *};
+ *
+ */
+/* ------ END-EXPECTED-OUTPUT ------ */
+struct padding_weird_2 {
+	int: 32;	/* these paddings will be collapsed into `long: 56;` */
+	short: 16;
+	char: 8;
+	char a;
+	int: 32;	/* these paddings will be collapsed into `long: 56;` */
+	short: 16;
+	char: 8;
+	char b;
+	char: 8;
+};
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+struct exact_1byte {
+	char x;
+};
+
+struct padded_1byte {
+	char: 8;
+};
+
+struct exact_2bytes {
+	short x;
+};
+
+struct padded_2bytes {
+	short: 16;
+};
+
+struct exact_4bytes {
+	int x;
+};
+
+struct padded_4bytes {
+	int: 32;
+};
+
+struct exact_8bytes {
+	long x;
+};
+
+struct padded_8bytes {
+	long: 64;
+};
+
+struct ff_periodic_effect {
+	int: 32;
+	short magnitude;
+	long: 0;
+	short phase;
+	long: 0;
+	int: 32;
+	int custom_len;
+	short *custom_data;
+};
+
+struct ib_wc {
+	long: 64;
+	long: 64;
+	int: 32;
+	int byte_len;
+	void *qp;
+	union {} ex;
+	long: 64;
+	int slid;
+	int wc_flags;
+	long: 64;
+	char smac[6];
+	long: 0;
+	char network_hdr_type;
+};
+
+struct acpi_object_method {
+	long: 64;
+	char: 8;
+	char type;
+	short reference_count;
+	char flags;
+	short: 0;
+	char: 8;
+	char sync_level;
+	long: 64;
+	void *node;
+	void *aml_start;
+	union {} dispatch;
+	long: 64;
+	int aml_length;
+};
+
+struct nested_unpacked {
+	int x;
+};
+
+struct nested_packed {
+	struct nested_unpacked a;
+	char c;
+} __attribute__((packed));
+
+struct outer_mixed_but_unpacked {
+	struct nested_packed b1;
+	short a1;
+	struct nested_packed b2;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct {
+	struct padded_implicitly _1;
+	struct padded_explicitly _2;
+	struct padded_a_lot _3;
+	struct padded_cache_line _4;
+	struct zone _5;
+	struct padding_wo_named_members _6;
+	struct padding_weird_1 _7;
+	struct padding_weird_2 _8;
+	struct exact_1byte _100;
+	struct padded_1byte _101;
+	struct exact_2bytes _102;
+	struct padded_2bytes _103;
+	struct exact_4bytes _104;
+	struct padded_4bytes _105;
+	struct exact_8bytes _106;
+	struct padded_8bytes _107;
+	struct ff_periodic_effect _200;
+	struct ib_wc _201;
+	struct acpi_object_method _202;
+	struct outer_mixed_but_unpacked _203;
+} *_)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c b/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c
new file mode 100644
index 000000000000..29d01fff32bd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_dump_test_case_syntax.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * BTF-to-C dumper test for majority of C syntax quirks.
+ *
+ * Copyright (c) 2019 Facebook
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+enum e1 {
+	A = 0,
+	B = 1,
+};
+
+enum e2 {
+	C = 100,
+	D = 4294967295,
+	E = 0,
+};
+
+typedef enum e2 e2_t;
+
+typedef enum {
+	F = 0,
+	G = 1,
+	H = 2,
+} e3_t;
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *enum e_byte {
+ *	EBYTE_1 = 0,
+ *	EBYTE_2 = 1,
+ *} __attribute__((mode(byte)));
+ *
+ */
+/* ----- END-EXPECTED-OUTPUT ----- */
+enum e_byte {
+	EBYTE_1,
+	EBYTE_2,
+} __attribute__((mode(byte)));
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+/*
+ *enum e_word {
+ *	EWORD_1 = 0LL,
+ *	EWORD_2 = 1LL,
+ *} __attribute__((mode(word)));
+ *
+ */
+/* ----- END-EXPECTED-OUTPUT ----- */
+enum e_word {
+	EWORD_1,
+	EWORD_2,
+} __attribute__((mode(word))); /* force to use 8-byte backing for this enum */
+
+/* ----- START-EXPECTED-OUTPUT ----- */
+enum e_big {
+	EBIG_1 = 1000000000000ULL,
+};
+
+typedef int int_t;
+
+typedef volatile const int * volatile const crazy_ptr_t;
+
+typedef int *****we_need_to_go_deeper_ptr_t;
+
+typedef volatile const we_need_to_go_deeper_ptr_t * restrict * volatile * const * restrict volatile * restrict const * volatile const * restrict volatile const how_about_this_ptr_t;
+
+typedef int *ptr_arr_t[10];
+
+typedef void (*fn_ptr1_t)(int);
+
+typedef void (*printf_fn_t)(const char *, ...);
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+/*
+ * While previous function pointers are pretty trivial (C-syntax-level
+ * trivial), the following are deciphered here for future generations:
+ *
+ * - `fn_ptr2_t`: function, taking anonymous struct as a first arg and pointer
+ *   to a function, that takes int and returns int, as a second arg; returning
+ *   a pointer to a const pointer to a char. Equivalent to:
+ *	typedef struct { int a; } s_t;
+ *	typedef int (*fn_t)(int);
+ *	typedef char * const * (*fn_ptr2_t)(s_t, fn_t);
+ *
+ * - `fn_complex_t`: pointer to a function returning struct and accepting
+ *   union and struct. All structs and enum are anonymous and defined inline.
+ *
+ * - `signal_t: pointer to a function accepting a pointer to a function as an
+ *   argument and returning pointer to a function as a result. Sane equivalent:
+ *	typedef void (*signal_handler_t)(int);
+ *	typedef signal_handler_t (*signal_ptr_t)(int, signal_handler_t);
+ *
+ * - fn_ptr_arr1_t: array of pointers to a function accepting pointer to
+ *   a pointer to an int and returning pointer to a char. Easy.
+ *
+ * - fn_ptr_arr2_t: array of const pointers to a function taking no arguments
+ *   and returning a const pointer to a function, that takes pointer to a
+ *   `int -> char *` function and returns pointer to a char. Equivalent:
+ *   typedef char * (*fn_input_t)(int);
+ *   typedef char * (*fn_output_outer_t)(fn_input_t);
+ *   typedef const fn_output_outer_t (* fn_output_inner_t)(void);
+ *   typedef const fn_output_inner_t fn_ptr_arr2_t[5];
+ */
+/* ----- START-EXPECTED-OUTPUT ----- */
+typedef char * const * (*fn_ptr2_t)(struct {
+	int a;
+}, int (*)(int));
+
+typedef struct {
+	int a;
+	void (*b)(int, struct {
+		int c;
+	}, union {
+		char d;
+		int e[5];
+	});
+} (*fn_complex_t)(union {
+	void *f;
+	char g[16];
+}, struct {
+	int h;
+});
+
+typedef void (* (*signal_t)(int, void (*)(int)))(int);
+
+typedef char * (*fn_ptr_arr1_t[10])(int **);
+
+typedef char * (* (* const fn_ptr_arr2_t[5])(void))(char * (*)(int));
+
+struct struct_w_typedefs {
+	int_t a;
+	crazy_ptr_t b;
+	we_need_to_go_deeper_ptr_t c;
+	how_about_this_ptr_t d;
+	ptr_arr_t e;
+	fn_ptr1_t f;
+	printf_fn_t g;
+	fn_ptr2_t h;
+	fn_complex_t i;
+	signal_t j;
+	fn_ptr_arr1_t k;
+	fn_ptr_arr2_t l;
+};
+
+typedef struct {
+	int x;
+	int y;
+	int z;
+} anon_struct_t;
+
+struct struct_fwd;
+
+typedef struct struct_fwd struct_fwd_t;
+
+typedef struct struct_fwd *struct_fwd_ptr_t;
+
+union union_fwd;
+
+typedef union union_fwd union_fwd_t;
+
+typedef union union_fwd *union_fwd_ptr_t;
+
+struct struct_empty {};
+
+struct struct_simple {
+	int a;
+	char b;
+	const int_t *p;
+	struct struct_empty s;
+	enum e2 e;
+	enum {
+		ANON_VAL1 = 1,
+		ANON_VAL2 = 2,
+	} f;
+	int arr1[13];
+	enum e2 arr2[5];
+};
+
+union union_empty {};
+
+union union_simple {
+	void *ptr;
+	int num;
+	int_t num2;
+	union union_empty u;
+};
+
+struct struct_in_struct {
+	struct struct_simple simple;
+	union union_simple also_simple;
+	struct {
+		int a;
+	} not_so_hard_as_well;
+	union {
+		int b;
+		int c;
+	} anon_union_is_good;
+	struct {
+		int d;
+		int e;
+	};
+	union {
+		int f;
+		int g;
+	};
+};
+
+struct struct_in_array {};
+
+struct struct_in_array_typed {};
+
+typedef struct struct_in_array_typed struct_in_array_t[2];
+
+struct struct_with_embedded_stuff {
+	int a;
+	struct {
+		int b;
+		struct {
+			struct struct_with_embedded_stuff *c;
+			const char *d;
+		} e;
+		union {
+			volatile long f;
+			void * restrict g;
+		};
+	};
+	union {
+		const int_t *h;
+		void (*i)(char, int, void *);
+	} j;
+	enum {
+		K = 100,
+		L = 200,
+	} m;
+	char n[16];
+	struct {
+		char o;
+		int p;
+		void (*q)(int);
+	} r[5];
+	struct struct_in_struct s[10];
+	int t[11];
+	struct struct_in_array (*u)[2];
+	struct_in_array_t *v;
+};
+
+struct float_struct {
+	float f;
+	const double *d;
+	volatile long double *ld;
+};
+
+struct root_struct {
+	enum e1 _1;
+	enum e2 _2;
+	e2_t _2_1;
+	e3_t _2_2;
+	enum e_byte _100;
+	enum e_word _101;
+	enum e_big _102;
+	struct struct_w_typedefs _3;
+	anon_struct_t _7;
+	struct struct_fwd *_8;
+	struct_fwd_t *_9;
+	struct_fwd_ptr_t _10;
+	union union_fwd *_11;
+	union_fwd_t *_12;
+	union_fwd_ptr_t _13;
+	struct struct_with_embedded_stuff _14;
+	struct float_struct _15;
+};
+
+/* ------ END-EXPECTED-OUTPUT ------ */
+
+int f(struct root_struct *s)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_ptr.h b/tools/testing/selftests/bpf/progs/btf_ptr.h
new file mode 100644
index 000000000000..c3c9797c67db
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_ptr.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020, Oracle and/or its affiliates. */
+/* "undefine" structs in vmlinux.h, because we "override" them below */
+#define btf_ptr btf_ptr___not_used
+#define BTF_F_COMPACT BTF_F_COMPACT___not_used
+#define BTF_F_NONAME BTF_F_NONAME___not_used
+#define BTF_F_PTR_RAW BTF_F_PTR_RAW___not_used
+#define BTF_F_ZERO BTF_F_ZERO___not_used
+#include "vmlinux.h"
+#undef btf_ptr
+#undef BTF_F_COMPACT
+#undef BTF_F_NONAME
+#undef BTF_F_PTR_RAW
+#undef BTF_F_ZERO
+
+struct btf_ptr {
+	void *ptr;
+	__u32 type_id;
+	__u32 flags;
+};
+
+enum {
+	BTF_F_COMPACT	=	(1ULL << 0),
+	BTF_F_NONAME	=	(1ULL << 1),
+	BTF_F_PTR_RAW	=	(1ULL << 2),
+	BTF_F_ZERO	=	(1ULL << 3),
+};
diff --git a/tools/testing/selftests/bpf/progs/btf_type_tag.c b/tools/testing/selftests/bpf/progs/btf_type_tag.c
new file mode 100644
index 000000000000..1d488da7e920
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_type_tag.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#if __has_attribute(btf_type_tag)
+#define __tag1 __attribute__((btf_type_tag("tag1")))
+#define __tag2 __attribute__((btf_type_tag("tag2")))
+volatile const bool skip_tests = false;
+#else
+#define __tag1
+#define __tag2
+volatile const bool skip_tests = true;
+#endif
+
+struct btf_type_tag_test {
+	int __tag1 * __tag1 __tag2 *p;
+} g;
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(sub, int x)
+{
+  return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c b/tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c
new file mode 100644
index 000000000000..d93f68024cc6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_type_tag_percpu.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct bpf_testmod_btf_type_tag_1 {
+	int a;
+};
+
+struct bpf_testmod_btf_type_tag_2 {
+	struct bpf_testmod_btf_type_tag_1 *p;
+};
+
+__u64 g;
+
+SEC("fentry/bpf_testmod_test_btf_type_tag_percpu_1")
+int BPF_PROG(test_percpu1, struct bpf_testmod_btf_type_tag_1 *arg)
+{
+	g = arg->a;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_btf_type_tag_percpu_2")
+int BPF_PROG(test_percpu2, struct bpf_testmod_btf_type_tag_2 *arg)
+{
+	g = arg->p->a;
+	return 0;
+}
+
+/* trace_cgroup_mkdir(struct cgroup *cgrp, const char *path)
+ *
+ * struct css_rstat_cpu {
+ *   ...
+ *   struct cgroup_subsys_state *updated_children;
+ *   ...
+ * };
+ *
+ * struct cgroup_subsys_state {
+ *   ...
+ *   struct css_rstat_cpu __percpu *rstat_cpu;
+ *   ...
+ * };
+ *
+ * struct cgroup {
+ *   struct cgroup_subsys_state self;
+ *   ...
+ * };
+ */
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_percpu_load, struct cgroup *cgrp, const char *path)
+{
+	g = (__u64)cgrp->self.rstat_cpu->updated_children;
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_percpu_helper, struct cgroup *cgrp, const char *path)
+{
+	struct css_rstat_cpu *rstat;
+	__u32 cpu;
+
+	cpu = bpf_get_smp_processor_id();
+	rstat = (struct css_rstat_cpu *)bpf_per_cpu_ptr(
+			cgrp->self.rstat_cpu, cpu);
+	if (rstat) {
+		/* READ_ONCE */
+		*(volatile long *)rstat;
+	}
+
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/btf_type_tag_user.c b/tools/testing/selftests/bpf/progs/btf_type_tag_user.c
new file mode 100644
index 000000000000..5523f77c5a44
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf_type_tag_user.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct bpf_testmod_btf_type_tag_1 {
+	int a;
+};
+
+struct bpf_testmod_btf_type_tag_2 {
+	struct bpf_testmod_btf_type_tag_1 *p;
+};
+
+int g;
+
+SEC("fentry/bpf_testmod_test_btf_type_tag_user_1")
+int BPF_PROG(test_user1, struct bpf_testmod_btf_type_tag_1 *arg)
+{
+	g = arg->a;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_btf_type_tag_user_2")
+int BPF_PROG(test_user2, struct bpf_testmod_btf_type_tag_2 *arg)
+{
+	g = arg->p->a;
+	return 0;
+}
+
+/* int __sys_getsockname(int fd, struct sockaddr __user *usockaddr,
+ *                       int __user *usockaddr_len);
+ */
+SEC("fentry/__sys_getsockname")
+int BPF_PROG(test_sys_getsockname, int fd, struct sockaddr *usockaddr,
+	     int *usockaddr_len)
+{
+	g = usockaddr->sa_family;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cb_refs.c b/tools/testing/selftests/bpf/progs/cb_refs.c
new file mode 100644
index 000000000000..5d6fc7f01ebb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cb_refs.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+struct map_value {
+	struct prog_test_ref_kfunc __kptr *ptr;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 16);
+} array_map SEC(".maps");
+
+static __noinline int cb1(void *map, void *key, void *value, void *ctx)
+{
+	void *p = *(void **)ctx;
+	bpf_kfunc_call_test_release(p);
+	/* Without the fix this would cause underflow */
+	return 0;
+}
+
+SEC("?tc")
+int underflow_prog(void *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	unsigned long sl = 0;
+
+	p = bpf_kfunc_call_test_acquire(&sl);
+	if (!p)
+		return 0;
+	bpf_for_each_map_elem(&array_map, cb1, &p, 0);
+	bpf_kfunc_call_test_release(p);
+	return 0;
+}
+
+static __always_inline int cb2(void *map, void *key, void *value, void *ctx)
+{
+	unsigned long sl = 0;
+
+	*(void **)ctx = bpf_kfunc_call_test_acquire(&sl);
+	/* Without the fix this would leak memory */
+	return 0;
+}
+
+SEC("?tc")
+int leak_prog(void *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 0;
+
+	p = NULL;
+	bpf_for_each_map_elem(&array_map, cb2, &p, 0);
+	p = bpf_kptr_xchg(&v->ptr, p);
+	if (p)
+		bpf_kfunc_call_test_release(p);
+	return 0;
+}
+
+static __always_inline int cb(void *map, void *key, void *value, void *ctx)
+{
+	return 0;
+}
+
+static __always_inline int cb3(void *map, void *key, void *value, void *ctx)
+{
+	unsigned long sl = 0;
+	void *p;
+
+	bpf_kfunc_call_test_acquire(&sl);
+	bpf_for_each_map_elem(&array_map, cb, &p, 0);
+	/* It should only complain here, not in cb. This is why we need
+	 * callback_ref to be set to frameno.
+	 */
+	return 0;
+}
+
+SEC("?tc")
+int nested_cb(void *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	unsigned long sl = 0;
+	int sp = 0;
+
+	p = bpf_kfunc_call_test_acquire(&sl);
+	if (!p)
+		return 0;
+	bpf_for_each_map_elem(&array_map, cb3, &sp, 0);
+	bpf_kfunc_call_test_release(p);
+	return 0;
+}
+
+SEC("?tc")
+int non_cb_transfer_ref(void *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	unsigned long sl = 0;
+
+	p = bpf_kfunc_call_test_acquire(&sl);
+	if (!p)
+		return 0;
+	cb1(NULL, NULL, NULL, &p);
+	bpf_kfunc_call_test_acquire(&sl);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/cg_storage_multi.h b/tools/testing/selftests/bpf/progs/cg_storage_multi.h
new file mode 100644
index 000000000000..41d59f0ee606
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cg_storage_multi.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __PROGS_CG_STORAGE_MULTI_H
+#define __PROGS_CG_STORAGE_MULTI_H
+
+struct cgroup_value {
+	__u32 egress_pkts;
+	__u32 ingress_pkts;
+};
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/cg_storage_multi_egress_only.c b/tools/testing/selftests/bpf/progs/cg_storage_multi_egress_only.c
new file mode 100644
index 000000000000..44ad46b33539
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cg_storage_multi_egress_only.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+
+#include "progs/cg_storage_multi.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, struct cgroup_value);
+} cgroup_storage SEC(".maps");
+
+__u32 invocations = 0;
+
+SEC("cgroup_skb/egress")
+int egress(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cg_storage_multi_isolated.c b/tools/testing/selftests/bpf/progs/cg_storage_multi_isolated.c
new file mode 100644
index 000000000000..3f81ff92184c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cg_storage_multi_isolated.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+
+#include "progs/cg_storage_multi.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, struct cgroup_value);
+} cgroup_storage SEC(".maps");
+
+__u32 invocations = 0;
+
+SEC("cgroup_skb/egress")
+int egress1(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
+
+SEC("cgroup_skb/egress")
+int egress2(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
+
+SEC("cgroup_skb/ingress")
+int ingress(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->ingress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cg_storage_multi_shared.c b/tools/testing/selftests/bpf/progs/cg_storage_multi_shared.c
new file mode 100644
index 000000000000..d662db27fe4a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cg_storage_multi_shared.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <linux/ip.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+
+#include "progs/cg_storage_multi.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, __u64);
+	__type(value, struct cgroup_value);
+} cgroup_storage SEC(".maps");
+
+__u32 invocations = 0;
+
+SEC("cgroup_skb/egress")
+int egress1(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
+
+SEC("cgroup_skb/egress")
+int egress2(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->egress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
+
+SEC("cgroup_skb/ingress")
+int ingress(struct __sk_buff *skb)
+{
+	struct cgroup_value *ptr_cg_storage =
+		bpf_get_local_storage(&cgroup_storage, 0);
+
+	__sync_fetch_and_add(&ptr_cg_storage->ingress_pkts, 1);
+	__sync_fetch_and_add(&invocations, 1);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_ancestor.c b/tools/testing/selftests/bpf/progs/cgroup_ancestor.c
new file mode 100644
index 000000000000..8c2deb4fc493
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_ancestor.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_tracing_net.h"
+#define NUM_CGROUP_LEVELS	4
+
+__u64 cgroup_ids[NUM_CGROUP_LEVELS];
+__u16 dport;
+
+static __always_inline void log_nth_level(struct __sk_buff *skb, __u32 level)
+{
+	/* [1] &level passed to external function that may change it, it's
+	 *     incompatible with loop unroll.
+	 */
+	cgroup_ids[level] = bpf_skb_ancestor_cgroup_id(skb, level);
+}
+
+SEC("tc")
+int log_cgroup_id(struct __sk_buff *skb)
+{
+	struct sock *sk = (void *)skb->sk;
+
+	if (!sk)
+		return TC_ACT_OK;
+
+	sk = bpf_core_cast(sk, struct sock);
+	if (sk->sk_protocol == IPPROTO_UDP && sk->sk_dport == dport) {
+		log_nth_level(skb, 0);
+		log_nth_level(skb, 1);
+		log_nth_level(skb, 2);
+		log_nth_level(skb, 3);
+	}
+
+	return TC_ACT_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/cgroup_getset_retval_getsockopt.c b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_getsockopt.c
new file mode 100644
index 000000000000..932b8ecd4ae3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_getsockopt.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2021 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__u32 invocations = 0;
+__u32 assertion_error = 0;
+__u32 retval_value = 0;
+__u32 ctx_retval_value = 0;
+__u32 page_size = 0;
+
+SEC("cgroup/getsockopt")
+int get_retval(struct bpf_sockopt *ctx)
+{
+	retval_value = bpf_get_retval();
+	ctx_retval_value = ctx->retval;
+	__sync_fetch_and_add(&invocations, 1);
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int set_eisconn(struct bpf_sockopt *ctx)
+{
+	__sync_fetch_and_add(&invocations, 1);
+
+	if (bpf_set_retval(-EISCONN))
+		assertion_error = 1;
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int clear_retval(struct bpf_sockopt *ctx)
+{
+	__sync_fetch_and_add(&invocations, 1);
+
+	ctx->retval = 0;
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_getset_retval_hooks.c b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_hooks.c
new file mode 100644
index 000000000000..13dfb4bbfd28
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_hooks.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define BPF_RETVAL_HOOK(name, section, ctx, expected_err) \
+	__attribute__((__section__("?" section))) \
+	int name(struct ctx *_ctx) \
+	{ \
+		bpf_set_retval(bpf_get_retval()); \
+		return 1; \
+	}
+
+#include "cgroup_getset_retval_hooks.h"
+
+#undef BPF_RETVAL_HOOK
diff --git a/tools/testing/selftests/bpf/progs/cgroup_getset_retval_setsockopt.c b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_setsockopt.c
new file mode 100644
index 000000000000..45a0e9f492a9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_getset_retval_setsockopt.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2021 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__u32 invocations = 0;
+__u32 assertion_error = 0;
+__u32 retval_value = 0;
+__s32 page_size = 0;
+
+SEC("cgroup/setsockopt")
+int get_retval(struct bpf_sockopt *ctx)
+{
+	retval_value = bpf_get_retval();
+	__sync_fetch_and_add(&invocations, 1);
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 1;
+}
+
+SEC("cgroup/setsockopt")
+int set_eunatch(struct bpf_sockopt *ctx)
+{
+	__sync_fetch_and_add(&invocations, 1);
+
+	if (bpf_set_retval(-EUNATCH))
+		assertion_error = 1;
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 0;
+}
+
+SEC("cgroup/setsockopt")
+int set_eisconn(struct bpf_sockopt *ctx)
+{
+	__sync_fetch_and_add(&invocations, 1);
+
+	if (bpf_set_retval(-EISCONN))
+		assertion_error = 1;
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 0;
+}
+
+SEC("cgroup/setsockopt")
+int legacy_eperm(struct bpf_sockopt *ctx)
+{
+	__sync_fetch_and_add(&invocations, 1);
+
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_hierarchical_stats.c b/tools/testing/selftests/bpf/progs/cgroup_hierarchical_stats.c
new file mode 100644
index 000000000000..ff189a736ad8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_hierarchical_stats.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022 Google LLC.
+ */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct percpu_attach_counter {
+	/* Previous percpu state, to figure out if we have new updates */
+	__u64 prev;
+	/* Current percpu state */
+	__u64 state;
+};
+
+struct attach_counter {
+	/* State propagated through children, pending aggregation */
+	__u64 pending;
+	/* Total state, including all cpus and all children */
+	__u64 state;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 1024);
+	__type(key, __u64);
+	__type(value, struct percpu_attach_counter);
+} percpu_attach_counters SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1024);
+	__type(key, __u64);
+	__type(value, struct attach_counter);
+} attach_counters SEC(".maps");
+
+extern void css_rstat_updated(
+		struct cgroup_subsys_state *css, int cpu) __ksym;
+extern void css_rstat_flush(struct cgroup_subsys_state *css) __ksym;
+
+static uint64_t cgroup_id(struct cgroup *cgrp)
+{
+	return cgrp->kn->id;
+}
+
+static int create_percpu_attach_counter(__u64 cg_id, __u64 state)
+{
+	struct percpu_attach_counter pcpu_init = {.state = state, .prev = 0};
+
+	return bpf_map_update_elem(&percpu_attach_counters, &cg_id,
+				   &pcpu_init, BPF_NOEXIST);
+}
+
+static int create_attach_counter(__u64 cg_id, __u64 state, __u64 pending)
+{
+	struct attach_counter init = {.state = state, .pending = pending};
+
+	return bpf_map_update_elem(&attach_counters, &cg_id,
+				   &init, BPF_NOEXIST);
+}
+
+SEC("fentry/cgroup_attach_task")
+int BPF_PROG(counter, struct cgroup *dst_cgrp, struct task_struct *leader,
+	     bool threadgroup)
+{
+	__u64 cg_id = cgroup_id(dst_cgrp);
+	struct percpu_attach_counter *pcpu_counter = bpf_map_lookup_elem(
+			&percpu_attach_counters,
+			&cg_id);
+
+	if (pcpu_counter)
+		pcpu_counter->state += 1;
+	else if (create_percpu_attach_counter(cg_id, 1))
+		return 0;
+
+	css_rstat_updated(&dst_cgrp->self, bpf_get_smp_processor_id());
+	return 0;
+}
+
+SEC("fentry/bpf_rstat_flush")
+int BPF_PROG(flusher, struct cgroup *cgrp, struct cgroup *parent, int cpu)
+{
+	struct percpu_attach_counter *pcpu_counter;
+	struct attach_counter *total_counter, *parent_counter;
+	__u64 cg_id = cgroup_id(cgrp);
+	__u64 parent_cg_id = parent ? cgroup_id(parent) : 0;
+	__u64 state;
+	__u64 delta = 0;
+
+	/* Add CPU changes on this level since the last flush */
+	pcpu_counter = bpf_map_lookup_percpu_elem(&percpu_attach_counters,
+						  &cg_id, cpu);
+	if (pcpu_counter) {
+		state = pcpu_counter->state;
+		delta += state - pcpu_counter->prev;
+		pcpu_counter->prev = state;
+	}
+
+	total_counter = bpf_map_lookup_elem(&attach_counters, &cg_id);
+	if (!total_counter) {
+		if (create_attach_counter(cg_id, delta, 0))
+			return 0;
+		goto update_parent;
+	}
+
+	/* Collect pending stats from subtree */
+	if (total_counter->pending) {
+		delta += total_counter->pending;
+		total_counter->pending = 0;
+	}
+
+	/* Propagate changes to this cgroup's total */
+	total_counter->state += delta;
+
+update_parent:
+	/* Skip if there are no changes to propagate, or no parent */
+	if (!delta || !parent_cg_id)
+		return 0;
+
+	/* Propagate changes to cgroup's parent */
+	parent_counter = bpf_map_lookup_elem(&attach_counters,
+					     &parent_cg_id);
+	if (parent_counter)
+		parent_counter->pending += delta;
+	else
+		create_attach_counter(parent_cg_id, 0, delta);
+	return 0;
+}
+
+SEC("iter.s/cgroup")
+int BPF_PROG(dumper, struct bpf_iter_meta *meta, struct cgroup *cgrp)
+{
+	struct seq_file *seq = meta->seq;
+	struct attach_counter *total_counter;
+	__u64 cg_id = cgrp ? cgroup_id(cgrp) : 0;
+
+	/* Do nothing for the terminal call */
+	if (!cg_id)
+		return 1;
+
+	/* Flush the stats to make sure we get the most updated numbers */
+	css_rstat_flush(&cgrp->self);
+
+	total_counter = bpf_map_lookup_elem(&attach_counters, &cg_id);
+	if (!total_counter) {
+		BPF_SEQ_PRINTF(seq, "cg_id: %llu, attach_counter: 0\n",
+			       cg_id);
+	} else {
+		BPF_SEQ_PRINTF(seq, "cg_id: %llu, attach_counter: %llu\n",
+			       cg_id, total_counter->state);
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_iter.c b/tools/testing/selftests/bpf/progs/cgroup_iter.c
new file mode 100644
index 000000000000..f30841997a8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_iter.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+int terminate_early = 0;
+u64 terminal_cgroup = 0;
+
+static inline u64 cgroup_id(struct cgroup *cgrp)
+{
+	return cgrp->kn->id;
+}
+
+SEC("iter/cgroup")
+int cgroup_id_printer(struct bpf_iter__cgroup *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct cgroup *cgrp = ctx->cgroup;
+
+	/* epilogue */
+	if (cgrp == NULL) {
+		BPF_SEQ_PRINTF(seq, "epilogue\n");
+		return 0;
+	}
+
+	/* prologue */
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "prologue\n");
+
+	BPF_SEQ_PRINTF(seq, "%8llu\n", cgroup_id(cgrp));
+
+	if (terminal_cgroup == cgroup_id(cgrp))
+		return 1;
+
+	return terminate_early ? 1 : 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_mprog.c b/tools/testing/selftests/bpf/progs/cgroup_mprog.c
new file mode 100644
index 000000000000..6a0ea02c4de2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_mprog.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("cgroup/getsockopt")
+int getsockopt_1(struct bpf_sockopt *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int getsockopt_2(struct bpf_sockopt *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int getsockopt_3(struct bpf_sockopt *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int getsockopt_4(struct bpf_sockopt *ctx)
+{
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_preorder.c b/tools/testing/selftests/bpf/progs/cgroup_preorder.c
new file mode 100644
index 000000000000..4ef6202baa0a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_preorder.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+unsigned int idx;
+__u8 result[4];
+
+SEC("cgroup/getsockopt")
+int child(struct bpf_sockopt *ctx)
+{
+	if (idx < 4)
+		result[idx++] = 1;
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int child_2(struct bpf_sockopt *ctx)
+{
+	if (idx < 4)
+		result[idx++] = 2;
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int parent(struct bpf_sockopt *ctx)
+{
+	if (idx < 4)
+		result[idx++] = 3;
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int parent_2(struct bpf_sockopt *ctx)
+{
+	if (idx < 4)
+		result[idx++] = 4;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_read_xattr.c b/tools/testing/selftests/bpf/progs/cgroup_read_xattr.c
new file mode 100644
index 000000000000..88e13e17ec9e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_read_xattr.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+char value[16];
+
+static __always_inline void read_xattr(struct cgroup *cgroup)
+{
+	struct bpf_dynptr value_ptr;
+
+	bpf_dynptr_from_mem(value, sizeof(value), 0, &value_ptr);
+	bpf_cgroup_read_xattr(cgroup, "user.bpf_test",
+			      &value_ptr);
+}
+
+SEC("lsm.s/socket_connect")
+__success
+int BPF_PROG(trusted_cgroup_ptr_sleepable)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	read_xattr(cgrp);
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("lsm/socket_connect")
+__success
+int BPF_PROG(trusted_cgroup_ptr_non_sleepable)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	read_xattr(cgrp);
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("lsm/socket_connect")
+__success
+int BPF_PROG(use_css_iter_non_sleepable)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup_subsys_state *css;
+	struct cgroup *cgrp;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	bpf_for_each(css, css, &cgrp->self, BPF_CGROUP_ITER_ANCESTORS_UP)
+		read_xattr(css->cgroup);
+
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("lsm.s/socket_connect")
+__failure __msg("kernel func bpf_iter_css_new requires RCU critical section protection")
+int BPF_PROG(use_css_iter_sleepable_missing_rcu_lock)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup_subsys_state *css;
+	struct cgroup *cgrp;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	bpf_for_each(css, css, &cgrp->self, BPF_CGROUP_ITER_ANCESTORS_UP)
+		read_xattr(css->cgroup);
+
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("lsm.s/socket_connect")
+__success
+int BPF_PROG(use_css_iter_sleepable_with_rcu_lock)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup_subsys_state *css;
+	struct cgroup *cgrp;
+
+	bpf_rcu_read_lock();
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		goto out;
+
+	bpf_for_each(css, css, &cgrp->self, BPF_CGROUP_ITER_ANCESTORS_UP)
+		read_xattr(css->cgroup);
+
+	bpf_cgroup_release(cgrp);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("lsm/socket_connect")
+__success
+int BPF_PROG(use_bpf_cgroup_ancestor)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp, *ancestor;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	ancestor = bpf_cgroup_ancestor(cgrp, 1);
+	if (!ancestor)
+		goto out;
+
+	read_xattr(cgrp);
+	bpf_cgroup_release(ancestor);
+out:
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("cgroup/sendmsg4")
+__success
+int BPF_PROG(cgroup_skb)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp, *ancestor;
+
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp)
+		return 0;
+
+	ancestor = bpf_cgroup_ancestor(cgrp, 1);
+	if (!ancestor)
+		goto out;
+
+	read_xattr(cgrp);
+	bpf_cgroup_release(ancestor);
+out:
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_skb_direct_packet_access.c b/tools/testing/selftests/bpf/progs/cgroup_skb_direct_packet_access.c
new file mode 100644
index 000000000000..e32b07d802bb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_skb_direct_packet_access.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+__u32 data_end;
+
+SEC("cgroup_skb/ingress")
+int direct_packet_access(struct __sk_buff *skb)
+{
+	data_end = skb->data_end;
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/cgroup_skb_sk_lookup_kern.c b/tools/testing/selftests/bpf/progs/cgroup_skb_sk_lookup_kern.c
new file mode 100644
index 000000000000..ac86a8a61605
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_skb_sk_lookup_kern.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u16 g_serv_port = 0;
+
+static inline void set_ip(__u32 *dst, const struct in6_addr *src)
+{
+	dst[0] = src->in6_u.u6_addr32[0];
+	dst[1] = src->in6_u.u6_addr32[1];
+	dst[2] = src->in6_u.u6_addr32[2];
+	dst[3] = src->in6_u.u6_addr32[3];
+}
+
+static inline void set_tuple(struct bpf_sock_tuple *tuple,
+			     const struct ipv6hdr *ip6h,
+			     const struct tcphdr *tcph)
+{
+	set_ip(tuple->ipv6.saddr, &ip6h->daddr);
+	set_ip(tuple->ipv6.daddr, &ip6h->saddr);
+	tuple->ipv6.sport = tcph->dest;
+	tuple->ipv6.dport = tcph->source;
+}
+
+static inline int is_allowed_peer_cg(struct __sk_buff *skb,
+				     const struct ipv6hdr *ip6h,
+				     const struct tcphdr *tcph)
+{
+	__u64 cgid, acgid, peer_cgid, peer_acgid;
+	struct bpf_sock_tuple tuple;
+	size_t tuple_len = sizeof(tuple.ipv6);
+	struct bpf_sock *peer_sk;
+
+	set_tuple(&tuple, ip6h, tcph);
+
+	peer_sk = bpf_sk_lookup_tcp(skb, &tuple, tuple_len,
+				    BPF_F_CURRENT_NETNS, 0);
+	if (!peer_sk)
+		return 0;
+
+	cgid = bpf_skb_cgroup_id(skb);
+	peer_cgid = bpf_sk_cgroup_id(peer_sk);
+
+	acgid = bpf_skb_ancestor_cgroup_id(skb, 2);
+	peer_acgid = bpf_sk_ancestor_cgroup_id(peer_sk, 2);
+
+	bpf_sk_release(peer_sk);
+
+	return cgid && cgid == peer_cgid && acgid && acgid == peer_acgid;
+}
+
+SEC("cgroup_skb/ingress")
+int ingress_lookup(struct __sk_buff *skb)
+{
+	struct ipv6hdr ip6h;
+	struct tcphdr tcph;
+
+	if (skb->protocol != bpf_htons(ETH_P_IPV6))
+		return 1;
+
+	/* For SYN packets coming to listening socket skb->remote_port will be
+	 * zero, so IPv6/TCP headers are loaded to identify remote peer
+	 * instead.
+	 */
+	if (bpf_skb_load_bytes(skb, 0, &ip6h, sizeof(ip6h)))
+		return 1;
+
+	if (ip6h.nexthdr != IPPROTO_TCP)
+		return 1;
+
+	if (bpf_skb_load_bytes(skb, sizeof(ip6h), &tcph, sizeof(tcph)))
+		return 1;
+
+	if (!g_serv_port)
+		return 0;
+
+	if (tcph.dest != g_serv_port)
+		return 1;
+
+	return is_allowed_peer_cg(skb, &ip6h, &tcph);
+}
diff --git a/tools/testing/selftests/bpf/progs/cgroup_storage.c b/tools/testing/selftests/bpf/progs/cgroup_storage.c
new file mode 100644
index 000000000000..db1e4d2d3281
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_storage.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, __u64);
+} cgroup_storage SEC(".maps");
+
+SEC("cgroup_skb/egress")
+int bpf_prog(struct __sk_buff *skb)
+{
+	__u64 *counter;
+
+	counter = bpf_get_local_storage(&cgroup_storage, 0);
+	__sync_fetch_and_add(counter, 1);
+
+	/* Drop one out of every two packets */
+	return (*counter & 1);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/cgroup_tcp_skb.c b/tools/testing/selftests/bpf/progs/cgroup_tcp_skb.c
new file mode 100644
index 000000000000..1e2e73f3b749
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgroup_tcp_skb.c
@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+#include <linux/bpf.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include "cgroup_tcp_skb.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u16 g_sock_port = 0;
+__u32 g_sock_state = 0;
+int g_unexpected = 0;
+__u32 g_packet_count = 0;
+
+int needed_tcp_pkt(struct __sk_buff *skb, struct tcphdr *tcph)
+{
+	struct ipv6hdr ip6h;
+
+	if (skb->protocol != bpf_htons(ETH_P_IPV6))
+		return 0;
+	if (bpf_skb_load_bytes(skb, 0, &ip6h, sizeof(ip6h)))
+		return 0;
+
+	if (ip6h.nexthdr != IPPROTO_TCP)
+		return 0;
+
+	if (bpf_skb_load_bytes(skb, sizeof(ip6h), tcph, sizeof(*tcph)))
+		return 0;
+
+	if (tcph->source != bpf_htons(g_sock_port) &&
+	    tcph->dest != bpf_htons(g_sock_port))
+		return 0;
+
+	return 1;
+}
+
+/* Run accept() on a socket in the cgroup to receive a new connection. */
+static int egress_accept(struct tcphdr *tcph)
+{
+	if (g_sock_state ==  SYN_RECV_SENDING_SYN_ACK) {
+		if (tcph->fin || !tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = SYN_RECV;
+		return 1;
+	}
+
+	return 0;
+}
+
+static int ingress_accept(struct tcphdr *tcph)
+{
+	switch (g_sock_state) {
+	case INIT:
+		if (!tcph->syn || tcph->fin || tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = SYN_RECV_SENDING_SYN_ACK;
+		break;
+	case SYN_RECV:
+		if (tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = ESTABLISHED;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+/* Run connect() on a socket in the cgroup to start a new connection. */
+static int egress_connect(struct tcphdr *tcph)
+{
+	if (g_sock_state == INIT) {
+		if (!tcph->syn || tcph->fin || tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = SYN_SENT;
+		return 1;
+	}
+
+	return 0;
+}
+
+static int ingress_connect(struct tcphdr *tcph)
+{
+	if (g_sock_state == SYN_SENT) {
+		if (tcph->fin || !tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = ESTABLISHED;
+		return 1;
+	}
+
+	return 0;
+}
+
+/* The connection is closed by the peer outside the cgroup. */
+static int egress_close_remote(struct tcphdr *tcph)
+{
+	switch (g_sock_state) {
+	case ESTABLISHED:
+		break;
+	case CLOSE_WAIT_SENDING_ACK:
+		if (tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = CLOSE_WAIT;
+		break;
+	case CLOSE_WAIT:
+		if (!tcph->fin)
+			g_unexpected++;
+		else
+			g_sock_state = LAST_ACK;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+static int ingress_close_remote(struct tcphdr *tcph)
+{
+	switch (g_sock_state) {
+	case ESTABLISHED:
+		if (tcph->fin)
+			g_sock_state = CLOSE_WAIT_SENDING_ACK;
+		break;
+	case LAST_ACK:
+		if (tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = CLOSED;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+/* The connection is closed by the endpoint inside the cgroup. */
+static int egress_close_local(struct tcphdr *tcph)
+{
+	switch (g_sock_state) {
+	case ESTABLISHED:
+		if (tcph->fin)
+			g_sock_state = FIN_WAIT1;
+		break;
+	case TIME_WAIT_SENDING_ACK:
+		if (tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = TIME_WAIT;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+static int ingress_close_local(struct tcphdr *tcph)
+{
+	switch (g_sock_state) {
+	case ESTABLISHED:
+		break;
+	case FIN_WAIT1:
+		if (tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = FIN_WAIT2;
+		break;
+	case FIN_WAIT2:
+		if (!tcph->fin || tcph->syn || !tcph->ack)
+			g_unexpected++;
+		else
+			g_sock_state = TIME_WAIT_SENDING_ACK;
+		break;
+	default:
+		return 0;
+	}
+
+	return 1;
+}
+
+/* Check the types of outgoing packets of a server socket to make sure they
+ * are consistent with the state of the server socket.
+ *
+ * The connection is closed by the client side.
+ */
+SEC("cgroup_skb/egress")
+int server_egress(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Egress of the server socket. */
+	if (egress_accept(&tcph) || egress_close_remote(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of incoming packets of a server socket to make sure they
+ * are consistent with the state of the server socket.
+ *
+ * The connection is closed by the client side.
+ */
+SEC("cgroup_skb/ingress")
+int server_ingress(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Ingress of the server socket. */
+	if (ingress_accept(&tcph) || ingress_close_remote(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of outgoing packets of a server socket to make sure they
+ * are consistent with the state of the server socket.
+ *
+ * The connection is closed by the server side.
+ */
+SEC("cgroup_skb/egress")
+int server_egress_srv(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Egress of the server socket. */
+	if (egress_accept(&tcph) || egress_close_local(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of incoming packets of a server socket to make sure they
+ * are consistent with the state of the server socket.
+ *
+ * The connection is closed by the server side.
+ */
+SEC("cgroup_skb/ingress")
+int server_ingress_srv(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Ingress of the server socket. */
+	if (ingress_accept(&tcph) || ingress_close_local(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of outgoing packets of a client socket to make sure they
+ * are consistent with the state of the client socket.
+ *
+ * The connection is closed by the server side.
+ */
+SEC("cgroup_skb/egress")
+int client_egress_srv(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Egress of the server socket. */
+	if (egress_connect(&tcph) || egress_close_remote(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of incoming packets of a client socket to make sure they
+ * are consistent with the state of the client socket.
+ *
+ * The connection is closed by the server side.
+ */
+SEC("cgroup_skb/ingress")
+int client_ingress_srv(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Ingress of the server socket. */
+	if (ingress_connect(&tcph) || ingress_close_remote(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of outgoing packets of a client socket to make sure they
+ * are consistent with the state of the client socket.
+ *
+ * The connection is closed by the client side.
+ */
+SEC("cgroup_skb/egress")
+int client_egress(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Egress of the server socket. */
+	if (egress_connect(&tcph) || egress_close_local(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
+
+/* Check the types of incoming packets of a client socket to make sure they
+ * are consistent with the state of the client socket.
+ *
+ * The connection is closed by the client side.
+ */
+SEC("cgroup_skb/ingress")
+int client_ingress(struct __sk_buff *skb)
+{
+	struct tcphdr tcph;
+
+	if (!needed_tcp_pkt(skb, &tcph))
+		return 1;
+
+	g_packet_count++;
+
+	/* Ingress of the server socket. */
+	if (ingress_connect(&tcph) || ingress_close_local(&tcph))
+		return 1;
+
+	g_unexpected++;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h b/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h
new file mode 100644
index 000000000000..73ba32e9a693
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_kfunc_common.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _CGRP_KFUNC_COMMON_H
+#define _CGRP_KFUNC_COMMON_H
+
+#include <errno.h>
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct __cgrps_kfunc_map_value {
+	struct cgroup __kptr * cgrp;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct __cgrps_kfunc_map_value);
+	__uint(max_entries, 1);
+} __cgrps_kfunc_map SEC(".maps");
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+void bpf_cgroup_release(struct cgroup *p) __ksym;
+struct cgroup *bpf_cgroup_ancestor(struct cgroup *cgrp, int level) __ksym;
+struct cgroup *bpf_cgroup_from_id(u64 cgid) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+static inline struct __cgrps_kfunc_map_value *cgrps_kfunc_map_value_lookup(struct cgroup *cgrp)
+{
+	s32 id;
+	long status;
+
+	status = bpf_probe_read_kernel(&id, sizeof(id), &cgrp->self.id);
+	if (status)
+		return NULL;
+
+	return bpf_map_lookup_elem(&__cgrps_kfunc_map, &id);
+}
+
+static inline int cgrps_kfunc_map_insert(struct cgroup *cgrp)
+{
+	struct __cgrps_kfunc_map_value local, *v;
+	long status;
+	struct cgroup *acquired, *old;
+	s32 id;
+
+	status = bpf_probe_read_kernel(&id, sizeof(id), &cgrp->self.id);
+	if (status)
+		return status;
+
+	local.cgrp = NULL;
+	status = bpf_map_update_elem(&__cgrps_kfunc_map, &id, &local, BPF_NOEXIST);
+	if (status)
+		return status;
+
+	v = bpf_map_lookup_elem(&__cgrps_kfunc_map, &id);
+	if (!v) {
+		bpf_map_delete_elem(&__cgrps_kfunc_map, &id);
+		return -ENOENT;
+	}
+
+	acquired = bpf_cgroup_acquire(cgrp);
+	if (!acquired) {
+		bpf_map_delete_elem(&__cgrps_kfunc_map, &id);
+		return -ENOENT;
+	}
+
+	old = bpf_kptr_xchg(&v->cgrp, acquired);
+	if (old) {
+		bpf_cgroup_release(old);
+		return -EEXIST;
+	}
+
+	return 0;
+}
+
+#endif /* _CGRP_KFUNC_COMMON_H */
diff --git a/tools/testing/selftests/bpf/progs/cgrp_kfunc_failure.c b/tools/testing/selftests/bpf/progs/cgrp_kfunc_failure.c
new file mode 100644
index 000000000000..9fe9c4a4e8f6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_kfunc_failure.c
@@ -0,0 +1,247 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "cgrp_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(cgroup_mkdir,
+ *         TP_PROTO(struct cgroup *cgrp, const char *path),
+ *         TP_ARGS(cgrp, path)
+ */
+
+static struct __cgrps_kfunc_map_value *insert_lookup_cgrp(struct cgroup *cgrp)
+{
+	int status;
+
+	status = cgrps_kfunc_map_insert(cgrp);
+	if (status)
+		return NULL;
+
+	return cgrps_kfunc_map_value_lookup(cgrp);
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(cgrp_kfunc_acquire_untrusted, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+	struct __cgrps_kfunc_map_value *v;
+
+	v = insert_lookup_cgrp(cgrp);
+	if (!v)
+		return 0;
+
+	/* Can't invoke bpf_cgroup_acquire() on an untrusted pointer. */
+	acquired = bpf_cgroup_acquire(v->cgrp);
+	if (acquired)
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(cgrp_kfunc_acquire_no_null_check, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+
+	acquired = bpf_cgroup_acquire(cgrp);
+	/*
+	 * Can't invoke bpf_cgroup_release() without checking the return value
+	 * of bpf_cgroup_acquire().
+	 */
+	bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("arg#0 pointer type STRUCT cgroup must point")
+int BPF_PROG(cgrp_kfunc_acquire_fp, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired, *stack_cgrp = (struct cgroup *)&path;
+
+	/* Can't invoke bpf_cgroup_acquire() on a random frame pointer. */
+	acquired = bpf_cgroup_acquire((struct cgroup *)&stack_cgrp);
+	if (acquired)
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("kretprobe/cgroup_destroy_locked")
+__failure __msg("calling kernel function bpf_cgroup_acquire is not allowed")
+int BPF_PROG(cgrp_kfunc_acquire_unsafe_kretprobe, struct cgroup *cgrp)
+{
+	struct cgroup *acquired;
+
+	/* Can't acquire an untrusted struct cgroup * pointer. */
+	acquired = bpf_cgroup_acquire(cgrp);
+	if (acquired)
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("cgrp_kfunc_acquire_trusted_walked")
+int BPF_PROG(cgrp_kfunc_acquire_trusted_walked, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+
+	/* Can't invoke bpf_cgroup_acquire() on a pointer obtained from walking a trusted cgroup. */
+	acquired = bpf_cgroup_acquire(cgrp->old_dom_cgrp);
+	if (acquired)
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(cgrp_kfunc_acquire_null, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+
+	/* Can't invoke bpf_cgroup_acquire() on a NULL pointer. */
+	acquired = bpf_cgroup_acquire(NULL);
+	if (acquired)
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Unreleased reference")
+int BPF_PROG(cgrp_kfunc_acquire_unreleased, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+
+	acquired = bpf_cgroup_acquire(cgrp);
+
+	/* Acquired cgroup is never released. */
+	__sink(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Unreleased reference")
+int BPF_PROG(cgrp_kfunc_xchg_unreleased, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *kptr;
+	struct __cgrps_kfunc_map_value *v;
+
+	v = insert_lookup_cgrp(cgrp);
+	if (!v)
+		return 0;
+
+	kptr = bpf_kptr_xchg(&v->cgrp, NULL);
+	if (!kptr)
+		return 0;
+
+	/* Kptr retrieved from map is never released. */
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("must be referenced or trusted")
+int BPF_PROG(cgrp_kfunc_rcu_get_release, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *kptr;
+	struct __cgrps_kfunc_map_value *v;
+
+	v = insert_lookup_cgrp(cgrp);
+	if (!v)
+		return 0;
+
+	bpf_rcu_read_lock();
+	kptr = v->cgrp;
+	if (kptr)
+		/* Can't release a cgroup kptr stored in a map. */
+		bpf_cgroup_release(kptr);
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(cgrp_kfunc_release_untrusted, struct cgroup *cgrp, const char *path)
+{
+	struct __cgrps_kfunc_map_value *v;
+
+	v = insert_lookup_cgrp(cgrp);
+	if (!v)
+		return 0;
+
+	/* Can't invoke bpf_cgroup_release() on an untrusted pointer. */
+	bpf_cgroup_release(v->cgrp);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("arg#0 pointer type STRUCT cgroup must point")
+int BPF_PROG(cgrp_kfunc_release_fp, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired = (struct cgroup *)&path;
+
+	/* Cannot release random frame pointer. */
+	bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(cgrp_kfunc_release_null, struct cgroup *cgrp, const char *path)
+{
+	struct __cgrps_kfunc_map_value local, *v;
+	long status;
+	struct cgroup *acquired, *old;
+	s32 id;
+
+	status = bpf_probe_read_kernel(&id, sizeof(id), &cgrp->self.id);
+	if (status)
+		return 0;
+
+	local.cgrp = NULL;
+	status = bpf_map_update_elem(&__cgrps_kfunc_map, &id, &local, BPF_NOEXIST);
+	if (status)
+		return status;
+
+	v = bpf_map_lookup_elem(&__cgrps_kfunc_map, &id);
+	if (!v)
+		return -ENOENT;
+
+	acquired = bpf_cgroup_acquire(cgrp);
+	if (!acquired)
+		return -ENOENT;
+
+	old = bpf_kptr_xchg(&v->cgrp, acquired);
+
+	/* old cannot be passed to bpf_cgroup_release() without a NULL check. */
+	bpf_cgroup_release(old);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+__failure __msg("release kernel function bpf_cgroup_release expects")
+int BPF_PROG(cgrp_kfunc_release_unacquired, struct cgroup *cgrp, const char *path)
+{
+	/* Cannot release trusted cgroup pointer which was not acquired. */
+	bpf_cgroup_release(cgrp);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_kfunc_success.c b/tools/testing/selftests/bpf/progs/cgrp_kfunc_success.c
new file mode 100644
index 000000000000..02d8f160ca0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_kfunc_success.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "cgrp_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+int err, pid, invocations;
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(cgroup_mkdir,
+ *         TP_PROTO(struct cgroup *cgrp, const char *path),
+ *         TP_ARGS(cgrp, path)
+ */
+
+static bool is_test_kfunc_task(void)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+	bool same = pid == cur_pid;
+
+	if (same)
+		__sync_fetch_and_add(&invocations, 1);
+
+	return same;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_acquire_release_argument, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *acquired;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	acquired = bpf_cgroup_acquire(cgrp);
+	if (!acquired)
+		err = 1;
+	else
+		bpf_cgroup_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_acquire_leave_in_map, struct cgroup *cgrp, const char *path)
+{
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = cgrps_kfunc_map_insert(cgrp);
+	if (status)
+		err = 1;
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_xchg_release, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *kptr, *cg;
+	struct __cgrps_kfunc_map_value *v;
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = cgrps_kfunc_map_insert(cgrp);
+	if (status) {
+		err = 1;
+		return 0;
+	}
+
+	v = cgrps_kfunc_map_value_lookup(cgrp);
+	if (!v) {
+		err = 2;
+		return 0;
+	}
+
+	kptr = v->cgrp;
+	if (!kptr) {
+		err = 4;
+		return 0;
+	}
+
+	cg = bpf_cgroup_ancestor(kptr, 1);
+	if (cg)	/* verifier only check */
+		bpf_cgroup_release(cg);
+
+	kptr = bpf_kptr_xchg(&v->cgrp, NULL);
+	if (!kptr) {
+		err = 3;
+		return 0;
+	}
+
+	bpf_cgroup_release(kptr);
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_get_release, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *kptr;
+	struct __cgrps_kfunc_map_value *v;
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = cgrps_kfunc_map_insert(cgrp);
+	if (status) {
+		err = 1;
+		return 0;
+	}
+
+	v = cgrps_kfunc_map_value_lookup(cgrp);
+	if (!v) {
+		err = 2;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	kptr = v->cgrp;
+	if (!kptr)
+		err = 3;
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_get_ancestors, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *self, *ancestor1, *invalid;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	self = bpf_cgroup_ancestor(cgrp, cgrp->level);
+	if (!self) {
+		err = 1;
+		return 0;
+	}
+
+	if (self->self.id != cgrp->self.id) {
+		bpf_cgroup_release(self);
+		err = 2;
+		return 0;
+	}
+	bpf_cgroup_release(self);
+
+	ancestor1 = bpf_cgroup_ancestor(cgrp, cgrp->level - 1);
+	if (!ancestor1) {
+		err = 3;
+		return 0;
+	}
+	bpf_cgroup_release(ancestor1);
+
+	invalid = bpf_cgroup_ancestor(cgrp, 10000);
+	if (invalid) {
+		bpf_cgroup_release(invalid);
+		err = 4;
+		return 0;
+	}
+
+	invalid = bpf_cgroup_ancestor(cgrp, -1);
+	if (invalid) {
+		bpf_cgroup_release(invalid);
+		err = 5;
+		return 0;
+	}
+
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_from_id, struct cgroup *cgrp, const char *path)
+{
+	struct cgroup *parent, *res;
+	u64 parent_cgid;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	/* @cgrp's ID is not visible yet, let's test with the parent */
+	parent = bpf_cgroup_ancestor(cgrp, cgrp->level - 1);
+	if (!parent) {
+		err = 1;
+		return 0;
+	}
+
+	parent_cgid = parent->kn->id;
+	bpf_cgroup_release(parent);
+
+	res = bpf_cgroup_from_id(parent_cgid);
+	if (!res) {
+		err = 2;
+		return 0;
+	}
+
+	bpf_cgroup_release(res);
+
+	if (res != parent) {
+		err = 3;
+		return 0;
+	}
+
+	res = bpf_cgroup_from_id((u64)-1);
+	if (res) {
+		bpf_cgroup_release(res);
+		err = 4;
+		return 0;
+	}
+
+	return 0;
+}
+
+SEC("syscall")
+int test_cgrp_from_id_ns(void *ctx)
+{
+	struct cgroup *cg;
+
+	cg = bpf_cgroup_from_id(1);
+	if (!cg)
+		return 42;
+	bpf_cgroup_release(cg);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c b/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c
new file mode 100644
index 000000000000..8aeba1b75c83
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_ls_attach_cgroup.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_tracing_net.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct socket_cookie {
+	__u64 cookie_key;
+	__u64 cookie_value;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct socket_cookie);
+} socket_cookies SEC(".maps");
+
+SEC("cgroup/connect6")
+int set_cookie(struct bpf_sock_addr *ctx)
+{
+	struct socket_cookie *p;
+	struct tcp_sock *tcp_sk;
+	struct bpf_sock *sk;
+
+	if (ctx->family != AF_INET6 || ctx->user_family != AF_INET6)
+		return 1;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	tcp_sk = bpf_skc_to_tcp_sock(sk);
+	if (!tcp_sk)
+		return 1;
+
+	p = bpf_cgrp_storage_get(&socket_cookies,
+		tcp_sk->inet_conn.icsk_inet.sk.sk_cgrp_data.cgroup, 0,
+		BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!p)
+		return 1;
+
+	p->cookie_value = 0xF;
+	p->cookie_key = bpf_get_socket_cookie(ctx);
+	return 1;
+}
+
+SEC("sockops")
+int update_cookie_sockops(struct bpf_sock_ops *ctx)
+{
+	struct socket_cookie *p;
+	struct tcp_sock *tcp_sk;
+	struct bpf_sock *sk;
+
+	if (ctx->family != AF_INET6 || ctx->op != BPF_SOCK_OPS_TCP_CONNECT_CB)
+		return 1;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	tcp_sk = bpf_skc_to_tcp_sock(sk);
+	if (!tcp_sk)
+		return 1;
+
+	p = bpf_cgrp_storage_get(&socket_cookies,
+		tcp_sk->inet_conn.icsk_inet.sk.sk_cgrp_data.cgroup, 0, 0);
+	if (!p)
+		return 1;
+
+	if (p->cookie_key != bpf_get_socket_cookie(ctx))
+		return 1;
+
+	p->cookie_value |= (ctx->local_port << 8);
+	return 1;
+}
+
+SEC("fexit/inet_stream_connect")
+int BPF_PROG(update_cookie_tracing, struct socket *sock,
+	     struct sockaddr *uaddr, int addr_len, int flags)
+{
+	struct socket_cookie *p;
+
+	if (uaddr->sa_family != AF_INET6)
+		return 0;
+
+	p = bpf_cgrp_storage_get(&socket_cookies, sock->sk->sk_cgrp_data.cgroup, 0, 0);
+	if (!p)
+		return 0;
+
+	if (p->cookie_key != bpf_get_socket_cookie(sock->sk))
+		return 0;
+
+	p->cookie_value |= 0xF0;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c b/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c
new file mode 100644
index 000000000000..d41f90e2ab64
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_ls_negative.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(on_enter, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	(void)bpf_cgrp_storage_get(&map_a, (struct cgroup *)task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c b/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c
new file mode 100644
index 000000000000..3500e4b69ebe
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_ls_recursion.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_b SEC(".maps");
+
+int target_hid = 0;
+bool is_cgroup1 = 0;
+
+struct cgroup *bpf_task_get_cgroup1(struct task_struct *task, int hierarchy_id) __ksym;
+void bpf_cgroup_release(struct cgroup *cgrp) __ksym;
+
+static void __on_update(struct cgroup *cgrp)
+{
+	long *ptr;
+
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		*ptr += 1;
+
+	ptr = bpf_cgrp_storage_get(&map_b, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		*ptr += 1;
+}
+
+SEC("fentry/bpf_local_storage_update")
+int BPF_PROG(on_update)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct cgroup *cgrp;
+
+	if (is_cgroup1) {
+		cgrp = bpf_task_get_cgroup1(task, target_hid);
+		if (!cgrp)
+			return 0;
+
+		__on_update(cgrp);
+		bpf_cgroup_release(cgrp);
+		return 0;
+	}
+
+	__on_update(task->cgroups->dfl_cgrp);
+	return 0;
+}
+
+static void __on_enter(struct pt_regs *regs, long id, struct cgroup *cgrp)
+{
+	long *ptr;
+
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		*ptr = 200;
+
+	ptr = bpf_cgrp_storage_get(&map_b, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		*ptr = 100;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(on_enter, struct pt_regs *regs, long id)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct cgroup *cgrp;
+
+	if (is_cgroup1) {
+		cgrp = bpf_task_get_cgroup1(task, target_hid);
+		if (!cgrp)
+			return 0;
+
+		__on_enter(regs, id, cgrp);
+		bpf_cgroup_release(cgrp);
+		return 0;
+	}
+
+	__on_enter(regs, id, task->cgroups->dfl_cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c b/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c
new file mode 100644
index 000000000000..a2de95f85648
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_ls_sleepable.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+__s32 target_pid;
+__u64 cgroup_id;
+int target_hid;
+bool is_cgroup1;
+
+struct cgroup *bpf_task_get_cgroup1(struct task_struct *task, int hierarchy_id) __ksym;
+void bpf_cgroup_release(struct cgroup *cgrp) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+SEC("?iter.s/cgroup")
+int cgroup_iter(struct bpf_iter__cgroup *ctx)
+{
+	struct cgroup *cgrp = ctx->cgroup;
+	long *ptr;
+
+	if (cgrp == NULL)
+		return 0;
+
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		cgroup_id = cgrp->kn->id;
+	return 0;
+}
+
+static void __no_rcu_lock(struct cgroup *cgrp)
+{
+	long *ptr;
+
+	/* Note that trace rcu is held in sleepable prog, so we can use
+	 * bpf_cgrp_storage_get() in sleepable prog.
+	 */
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		cgroup_id = cgrp->kn->id;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int cgrp1_no_rcu_lock(void *ctx)
+{
+	struct task_struct *task;
+	struct cgroup *cgrp;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	/* bpf_task_get_cgroup1 can work in sleepable prog */
+	cgrp = bpf_task_get_cgroup1(task, target_hid);
+	if (!cgrp)
+		return 0;
+
+	__no_rcu_lock(cgrp);
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int no_rcu_lock(void *ctx)
+{
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	/* task->cgroups is untrusted in sleepable prog outside of RCU CS */
+	__no_rcu_lock(task->cgroups->dfl_cgrp);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int yes_rcu_lock(void *ctx)
+{
+	struct task_struct *task;
+	struct cgroup *cgrp;
+	long *ptr;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	if (is_cgroup1) {
+		bpf_rcu_read_lock();
+		cgrp = bpf_task_get_cgroup1(task, target_hid);
+		if (!cgrp) {
+			bpf_rcu_read_unlock();
+			return 0;
+		}
+
+		ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+		if (ptr)
+			cgroup_id = cgrp->kn->id;
+		bpf_cgroup_release(cgrp);
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	cgrp = task->cgroups->dfl_cgrp;
+	/* cgrp is trusted under RCU CS */
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		cgroup_id = cgrp->kn->id;
+	bpf_rcu_read_unlock();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c b/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c
new file mode 100644
index 000000000000..1c348f000f38
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cgrp_ls_tp_btf.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_b SEC(".maps");
+
+#define MAGIC_VALUE 0xabcd1234
+
+pid_t target_pid = 0;
+int mismatch_cnt = 0;
+int enter_cnt = 0;
+int exit_cnt = 0;
+int target_hid = 0;
+bool is_cgroup1 = 0;
+
+struct cgroup *bpf_task_get_cgroup1(struct task_struct *task, int hierarchy_id) __ksym;
+void bpf_cgroup_release(struct cgroup *cgrp) __ksym;
+
+static void __on_enter(struct pt_regs *regs, long id, struct cgroup *cgrp)
+{
+	long *ptr;
+	int err;
+
+	/* populate value 0 */
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		return;
+
+	/* delete value 0 */
+	err = bpf_cgrp_storage_delete(&map_a, cgrp);
+	if (err)
+		return;
+
+	/* value is not available */
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0, 0);
+	if (ptr)
+		return;
+
+	/* re-populate the value */
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		return;
+	__sync_fetch_and_add(&enter_cnt, 1);
+	*ptr = MAGIC_VALUE + enter_cnt;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(on_enter, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+	struct cgroup *cgrp;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	if (is_cgroup1) {
+		cgrp = bpf_task_get_cgroup1(task, target_hid);
+		if (!cgrp)
+			return 0;
+
+		__on_enter(regs, id, cgrp);
+		bpf_cgroup_release(cgrp);
+		return 0;
+	}
+
+	__on_enter(regs, id, task->cgroups->dfl_cgrp);
+	return 0;
+}
+
+static void __on_exit(struct pt_regs *regs, long id, struct cgroup *cgrp)
+{
+	long *ptr;
+
+	ptr = bpf_cgrp_storage_get(&map_a, cgrp, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		return;
+
+	__sync_fetch_and_add(&exit_cnt, 1);
+	if (*ptr != MAGIC_VALUE + exit_cnt)
+		__sync_fetch_and_add(&mismatch_cnt, 1);
+}
+
+SEC("tp_btf/sys_exit")
+int BPF_PROG(on_exit, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+	struct cgroup *cgrp;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	if (is_cgroup1) {
+		cgrp = bpf_task_get_cgroup1(task, target_hid);
+		if (!cgrp)
+			return 0;
+
+		__on_exit(regs, id, cgrp);
+		bpf_cgroup_release(cgrp);
+		return 0;
+	}
+
+	__on_exit(regs, id, task->cgroups->dfl_cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/compute_live_registers.c b/tools/testing/selftests/bpf/progs/compute_live_registers.c
new file mode 100644
index 000000000000..6884ab99a421
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/compute_live_registers.c
@@ -0,0 +1,440 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_arena_common.h"
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} test_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 1);
+} arena SEC(".maps");
+
+SEC("socket")
+__log_level(2)
+__msg(" 0: .......... (b7) r0 = 42")
+__msg(" 1: 0......... (bf) r1 = r0")
+__msg(" 2: .1........ (bf) r2 = r1")
+__msg(" 3: ..2....... (bf) r3 = r2")
+__msg(" 4: ...3...... (bf) r4 = r3")
+__msg(" 5: ....4..... (bf) r5 = r4")
+__msg(" 6: .....5.... (bf) r6 = r5")
+__msg(" 7: ......6... (bf) r7 = r6")
+__msg(" 8: .......7.. (bf) r8 = r7")
+__msg(" 9: ........8. (bf) r9 = r8")
+__msg("10: .........9 (bf) r0 = r9")
+__msg("11: 0......... (95) exit")
+__naked void assign_chain(void)
+{
+	asm volatile (
+		"r0 = 42;"
+		"r1 = r0;"
+		"r2 = r1;"
+		"r3 = r2;"
+		"r4 = r3;"
+		"r5 = r4;"
+		"r6 = r5;"
+		"r7 = r6;"
+		"r8 = r7;"
+		"r9 = r8;"
+		"r0 = r9;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("0: .......... (b7) r1 = 7")
+__msg("1: .1........ (07) r1 += 7")
+__msg("2: .......... (b7) r2 = 7")
+__msg("3: ..2....... (b7) r3 = 42")
+__msg("4: ..23...... (0f) r2 += r3")
+__msg("5: .......... (b7) r0 = 0")
+__msg("6: 0......... (95) exit")
+__naked void arithmetics(void)
+{
+	asm volatile (
+		"r1 = 7;"
+		"r1 += 7;"
+		"r2 = 7;"
+		"r3 = 42;"
+		"r2 += r3;"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+#ifdef CAN_USE_BPF_ST
+SEC("socket")
+__log_level(2)
+__msg("  1: .1........ (07) r1 += -8")
+__msg("  2: .1........ (7a) *(u64 *)(r1 +0) = 7")
+__msg("  3: .1........ (b7) r2 = 42")
+__msg("  4: .12....... (7b) *(u64 *)(r1 +0) = r2")
+__msg("  5: .12....... (7b) *(u64 *)(r1 +0) = r2")
+__msg("  6: .......... (b7) r0 = 0")
+__naked void store(void)
+{
+	asm volatile (
+		"r1 = r10;"
+		"r1 += -8;"
+		"*(u64 *)(r1 +0) = 7;"
+		"r2 = 42;"
+		"*(u64 *)(r1 +0) = r2;"
+		"*(u64 *)(r1 +0) = r2;"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+#endif
+
+SEC("socket")
+__log_level(2)
+__msg("1: ....4..... (07) r4 += -8")
+__msg("2: ....4..... (79) r5 = *(u64 *)(r4 +0)")
+__msg("3: ....45.... (07) r4 += -8")
+__naked void load(void)
+{
+	asm volatile (
+		"r4 = r10;"
+		"r4 += -8;"
+		"r5 = *(u64 *)(r4 +0);"
+		"r4 += -8;"
+		"r0 = r5;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("0: .1........ (61) r2 = *(u32 *)(r1 +0)")
+__msg("1: ..2....... (d4) r2 = le64 r2")
+__msg("2: ..2....... (bf) r0 = r2")
+__naked void endian(void)
+{
+	asm volatile (
+		"r2 = *(u32 *)(r1 +0);"
+		"r2 = le64 r2;"
+		"r0 = r2;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg(" 8: 0......... (b7) r1 = 1")
+__msg(" 9: 01........ (db) r1 = atomic64_fetch_add((u64 *)(r0 +0), r1)")
+__msg("10: 01........ (c3) lock *(u32 *)(r0 +0) += r1")
+__msg("11: 01........ (db) r1 = atomic64_xchg((u64 *)(r0 +0), r1)")
+__msg("12: 01........ (bf) r2 = r0")
+__msg("13: .12....... (bf) r0 = r1")
+__msg("14: 012....... (db) r0 = atomic64_cmpxchg((u64 *)(r2 +0), r0, r1)")
+__naked void atomic(void)
+{
+	asm volatile (
+		"r2 = r10;"
+		"r2 += -8;"
+		"r1 = 0;"
+		"*(u64 *)(r2 +0) = r1;"
+		"r1 = %[test_map] ll;"
+		"call %[bpf_map_lookup_elem];"
+		"if r0 == 0 goto 1f;"
+		"r1 = 1;"
+		"r1 = atomic_fetch_add((u64 *)(r0 +0), r1);"
+		".8byte %[add_nofetch];" /* same as "lock *(u32 *)(r0 +0) += r1;" */
+		"r1 = xchg_64(r0 + 0, r1);"
+		"r2 = r0;"
+		"r0 = r1;"
+		"r0 = cmpxchg_64(r2 + 0, r0, r1);"
+		"1: exit;"
+		:
+		: __imm(bpf_map_lookup_elem),
+		  __imm_addr(test_map),
+		  __imm_insn(add_nofetch, BPF_ATOMIC_OP(BPF_W, BPF_ADD, BPF_REG_0, BPF_REG_1, 0))
+		: __clobber_all);
+}
+
+#ifdef CAN_USE_LOAD_ACQ_STORE_REL
+
+SEC("socket")
+__log_level(2)
+__msg("2: .12....... (db) store_release((u64 *)(r2 -8), r1)")
+__msg("3: .......... (bf) r3 = r10")
+__msg("4: ...3...... (db) r4 = load_acquire((u64 *)(r3 -8))")
+__naked void atomic_load_acq_store_rel(void)
+{
+	asm volatile (
+		"r1 = 42;"
+		"r2 = r10;"
+		".8byte %[store_release_insn];" /* store_release((u64 *)(r2 - 8), r1); */
+		"r3 = r10;"
+		".8byte %[load_acquire_insn];" /* r4 = load_acquire((u64 *)(r3 + 0)); */
+		"r0 = r4;"
+		"exit;"
+		:
+		: __imm_insn(store_release_insn,
+			     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_2, BPF_REG_1, -8)),
+		  __imm_insn(load_acquire_insn,
+			     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_4, BPF_REG_3, -8))
+		: __clobber_all);
+}
+
+#endif /* CAN_USE_LOAD_ACQ_STORE_REL */
+
+SEC("socket")
+__log_level(2)
+__msg("4: .12....7.. (85) call bpf_trace_printk#6")
+__msg("5: 0......7.. (0f) r0 += r7")
+__naked void regular_call(void)
+{
+	asm volatile (
+		"r7 = 1;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 1;"
+		"call %[bpf_trace_printk];"
+		"r0 += r7;"
+		"exit;"
+		:
+		: __imm(bpf_trace_printk)
+		: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("2: 012....... (25) if r1 > 0x7 goto pc+1")
+__msg("3: ..2....... (bf) r0 = r2")
+__naked void if1(void)
+{
+	asm volatile (
+		"r0 = 1;"
+		"r2 = 2;"
+		"if r1 > 0x7 goto +1;"
+		"r0 = r2;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("3: 0123...... (2d) if r1 > r3 goto pc+1")
+__msg("4: ..2....... (bf) r0 = r2")
+__naked void if2(void)
+{
+	asm volatile (
+		"r0 = 1;"
+		"r2 = 2;"
+		"r3 = 7;"
+		"if r1 > r3 goto +1;"
+		"r0 = r2;"
+		"exit;"
+		::: __clobber_all);
+}
+
+/* Verifier misses that r2 is alive if jset is not handled properly */
+SEC("socket")
+__log_level(2)
+__msg("2: 012....... (45) if r1 & 0x7 goto pc+1")
+__naked void if3_jset_bug(void)
+{
+	asm volatile (
+		"r0 = 1;"
+		"r2 = 2;"
+		"if r1 & 0x7 goto +1;"
+		"exit;"
+		"r0 = r2;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("0: .......... (b7) r1 = 0")
+__msg("1: .1........ (b7) r2 = 7")
+__msg("2: .12....... (25) if r1 > 0x7 goto pc+4")
+__msg("3: .12....... (07) r1 += 1")
+__msg("4: .12....... (27) r2 *= 2")
+__msg("5: .12....... (05) goto pc+0")
+__msg("6: .12....... (05) goto pc-5")
+__msg("7: .......... (b7) r0 = 0")
+__msg("8: 0......... (95) exit")
+__naked void loop(void)
+{
+	asm volatile (
+		"r1 = 0;"
+		"r2 = 7;"
+		"if r1 > 0x7 goto +4;"
+		"r1 += 1;"
+		"r2 *= 2;"
+		"goto +0;"
+		"goto -5;"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_trace_printk)
+		: __clobber_all);
+}
+
+#ifdef CAN_USE_GOTOL
+SEC("socket")
+__log_level(2)
+__msg("2: .123...... (25) if r1 > 0x7 goto pc+2")
+__msg("3: ..2....... (bf) r0 = r2")
+__msg("4: 0......... (06) gotol pc+1")
+__msg("5: ...3...... (bf) r0 = r3")
+__msg("6: 0......... (95) exit")
+__naked void gotol(void)
+{
+	asm volatile (
+		"r2 = 42;"
+		"r3 = 24;"
+		"if r1 > 0x7 goto +2;"
+		"r0 = r2;"
+		"gotol +1;"
+		"r0 = r3;"
+		"exit;"
+		:
+		: __imm(bpf_trace_printk)
+		: __clobber_all);
+}
+#endif
+
+SEC("socket")
+__log_level(2)
+__msg("0: .......... (b7) r1 = 1")
+__msg("1: .1........ (e5) may_goto pc+1")
+__msg("2: .......... (05) goto pc-3")
+__msg("3: .1........ (bf) r0 = r1")
+__msg("4: 0......... (95) exit")
+__naked void may_goto(void)
+{
+	asm volatile (
+	"1: r1 = 1;"
+	".8byte %[may_goto];"
+	"goto 1b;"
+	"r0 = r1;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id),
+	  __imm_insn(may_goto, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, +1 /* offset */, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("1: 0......... (18) r2 = 0x7")
+__msg("3: 0.2....... (0f) r0 += r2")
+__naked void ldimm64(void)
+{
+	asm volatile (
+		"r0 = 0;"
+		"r2 = 0x7 ll;"
+		"r0 += r2;"
+		"exit;"
+		:
+		:: __clobber_all);
+}
+
+/* No rules specific for LD_ABS/LD_IND, default behaviour kicks in */
+SEC("socket")
+__log_level(2)
+__msg("2: 0123456789 (30) r0 = *(u8 *)skb[42]")
+__msg("3: 012.456789 (0f) r7 += r0")
+__msg("4: 012.456789 (b7) r3 = 42")
+__msg("5: 0123456789 (50) r0 = *(u8 *)skb[r3 + 0]")
+__msg("6: 0......7.. (0f) r7 += r0")
+__naked void ldabs(void)
+{
+	asm volatile (
+		"r6 = r1;"
+		"r7 = 0;"
+		"r0 = *(u8 *)skb[42];"
+		"r7 += r0;"
+		"r3 = 42;"
+		".8byte %[ld_ind];" /* same as "r0 = *(u8 *)skb[r3];" */
+		"r7 += r0;"
+		"r0 = r7;"
+		"exit;"
+		:
+		: __imm_insn(ld_ind, BPF_LD_IND(BPF_B, BPF_REG_3, 0))
+		: __clobber_all);
+}
+
+
+#ifdef __BPF_FEATURE_ADDR_SPACE_CAST
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__log_level(2)
+__msg(" 6: .12345.... (85) call bpf_arena_alloc_pages")
+__msg(" 7: 0......... (bf) r1 = addr_space_cast(r0, 0, 1)")
+__msg(" 8: .1........ (b7) r2 = 42")
+__naked void addr_space_cast(void)
+{
+	asm volatile (
+		"r1 = %[arena] ll;"
+		"r2 = 0;"
+		"r3 = 1;"
+		"r4 = 0;"
+		"r5 = 0;"
+		"call %[bpf_arena_alloc_pages];"
+		"r1 = addr_space_cast(r0, 0, 1);"
+		"r2 = 42;"
+		"*(u64 *)(r1 +0) = r2;"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_arena_alloc_pages),
+		  __imm_addr(arena)
+		: __clobber_all);
+}
+#endif
+
+static __used __naked int aux1(void)
+{
+	asm volatile (
+		"r0 = r1;"
+		"r0 += r2;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("0: ....45.... (b7) r1 = 1")
+__msg("1: .1..45.... (b7) r2 = 2")
+__msg("2: .12.45.... (b7) r3 = 3")
+/* Conservative liveness for subprog parameters. */
+__msg("3: .12345.... (85) call pc+2")
+__msg("4: .......... (b7) r0 = 0")
+__msg("5: 0......... (95) exit")
+__msg("6: .12....... (bf) r0 = r1")
+__msg("7: 0.2....... (0f) r0 += r2")
+/* Conservative liveness for subprog return value. */
+__msg("8: 0......... (95) exit")
+__naked void subprog1(void)
+{
+	asm volatile (
+		"r1 = 1;"
+		"r2 = 2;"
+		"r3 = 3;"
+		"call aux1;"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+/* to retain debug info for BTF generation */
+void kfunc_root(void)
+{
+	bpf_arena_alloc_pages(0, 0, 0, 0, 0);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/connect4_dropper.c b/tools/testing/selftests/bpf/progs/connect4_dropper.c
new file mode 100644
index 000000000000..a3819a5d09c8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect4_dropper.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define VERDICT_REJECT	0
+#define VERDICT_PROCEED	1
+
+int port;
+
+SEC("cgroup/connect4")
+int connect_v4_dropper(struct bpf_sock_addr *ctx)
+{
+	if (ctx->type != SOCK_STREAM)
+		return VERDICT_PROCEED;
+	if (ctx->user_port == bpf_htons(port))
+		return VERDICT_REJECT;
+	return VERDICT_PROCEED;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c
new file mode 100644
index 000000000000..9d158cfad981
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect4_prog.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/tcp.h>
+#include <linux/if.h>
+#include <errno.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define SRC_REWRITE_IP4		0x7f000004U
+#define DST_REWRITE_IP4		0x7f000001U
+#define DST_REWRITE_PORT4	4444
+
+#ifndef TCP_CA_NAME_MAX
+#define TCP_CA_NAME_MAX 16
+#endif
+
+#ifndef TCP_NOTSENT_LOWAT
+#define TCP_NOTSENT_LOWAT 25
+#endif
+
+#ifndef IFNAMSIZ
+#define IFNAMSIZ 16
+#endif
+
+#ifndef SOL_TCP
+#define SOL_TCP 6
+#endif
+
+const char reno[] = "reno";
+const char cubic[] = "cubic";
+
+__attribute__ ((noinline)) __weak
+int do_bind(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in sa = {};
+
+	sa.sin_family = AF_INET;
+	sa.sin_port = bpf_htons(0);
+	sa.sin_addr.s_addr = bpf_htonl(SRC_REWRITE_IP4);
+
+	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
+		return 0;
+
+	return 1;
+}
+
+static __inline int verify_cc(struct bpf_sock_addr *ctx,
+			      const char expected[])
+{
+	char buf[TCP_CA_NAME_MAX];
+
+	if (bpf_getsockopt(ctx, SOL_TCP, TCP_CONGESTION, &buf, sizeof(buf)))
+		return 1;
+
+	if (bpf_strncmp(buf, TCP_CA_NAME_MAX, expected))
+		return 1;
+
+	return 0;
+}
+
+static __inline int set_cc(struct bpf_sock_addr *ctx)
+{
+	if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, (void *)reno, sizeof(reno)))
+		return 1;
+	if (verify_cc(ctx, reno))
+		return 1;
+
+	if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, (void *)cubic, sizeof(cubic)))
+		return 1;
+	if (verify_cc(ctx, cubic))
+		return 1;
+
+	return 0;
+}
+
+static __inline int bind_to_device(struct bpf_sock_addr *ctx)
+{
+	char veth1[IFNAMSIZ] = "test_sock_addr1";
+	char veth2[IFNAMSIZ] = "test_sock_addr2";
+	char missing[IFNAMSIZ] = "nonexistent_dev";
+	char del_bind[IFNAMSIZ] = "";
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+				&veth1, sizeof(veth1)))
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+				&veth2, sizeof(veth2)))
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+				&missing, sizeof(missing)) != -ENODEV)
+		return 1;
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+				&del_bind, sizeof(del_bind)))
+		return 1;
+
+	return 0;
+}
+
+static __inline int set_keepalive(struct bpf_sock_addr *ctx)
+{
+	int zero = 0, one = 1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_KEEPALIVE, &one, sizeof(one)))
+		return 1;
+	if (ctx->type == SOCK_STREAM) {
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_KEEPIDLE, &one, sizeof(one)))
+			return 1;
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_KEEPINTVL, &one, sizeof(one)))
+			return 1;
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_KEEPCNT, &one, sizeof(one)))
+			return 1;
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_SYNCNT, &one, sizeof(one)))
+			return 1;
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_USER_TIMEOUT, &one, sizeof(one)))
+			return 1;
+	}
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_KEEPALIVE, &zero, sizeof(zero)))
+		return 1;
+
+	return 0;
+}
+
+static __inline int set_notsent_lowat(struct bpf_sock_addr *ctx)
+{
+	int lowat = 65535;
+
+	if (ctx->type == SOCK_STREAM) {
+		if (bpf_setsockopt(ctx, SOL_TCP, TCP_NOTSENT_LOWAT, &lowat, sizeof(lowat)))
+			return 1;
+	}
+
+	return 0;
+}
+
+SEC("cgroup/connect4")
+int connect_v4_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	/* Verify that new destination is available. */
+	memset(&tuple.ipv4.saddr, 0, sizeof(tuple.ipv4.saddr));
+	memset(&tuple.ipv4.sport, 0, sizeof(tuple.ipv4.sport));
+
+	tuple.ipv4.daddr = bpf_htonl(DST_REWRITE_IP4);
+	tuple.ipv4.dport = bpf_htons(DST_REWRITE_PORT4);
+
+	/* Bind to device and unbind it. */
+	if (bind_to_device(ctx))
+		return 0;
+
+	if (set_keepalive(ctx))
+		return 0;
+
+	if (set_notsent_lowat(ctx))
+		return 0;
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 0;
+	else if (ctx->type == SOCK_STREAM)
+		sk = bpf_sk_lookup_tcp(ctx, &tuple, sizeof(tuple.ipv4),
+				       BPF_F_CURRENT_NETNS, 0);
+	else
+		sk = bpf_sk_lookup_udp(ctx, &tuple, sizeof(tuple.ipv4),
+				       BPF_F_CURRENT_NETNS, 0);
+
+	if (!sk)
+		return 0;
+
+	if (sk->src_ip4 != tuple.ipv4.daddr ||
+	    sk->src_port != DST_REWRITE_PORT4) {
+		bpf_sk_release(sk);
+		return 0;
+	}
+
+	bpf_sk_release(sk);
+
+	/* Rewrite congestion control. */
+	if (ctx->type == SOCK_STREAM && set_cc(ctx))
+		return 0;
+
+	/* Rewrite destination. */
+	ctx->user_ip4 = bpf_htonl(DST_REWRITE_IP4);
+	ctx->user_port = bpf_htons(DST_REWRITE_PORT4);
+
+	return do_bind(ctx) ? 1 : 0;
+}
+
+SEC("cgroup/connect4")
+int connect_v4_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/connect6_prog.c b/tools/testing/selftests/bpf/progs/connect6_prog.c
new file mode 100644
index 000000000000..e98573b00ddb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect6_prog.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define SRC_REWRITE_IP6_0	0
+#define SRC_REWRITE_IP6_1	0
+#define SRC_REWRITE_IP6_2	0
+#define SRC_REWRITE_IP6_3	6
+
+#define DST_REWRITE_IP6_0	0
+#define DST_REWRITE_IP6_1	0
+#define DST_REWRITE_IP6_2	0
+#define DST_REWRITE_IP6_3	1
+
+#define DST_REWRITE_PORT6	6666
+
+SEC("cgroup/connect6")
+int connect_v6_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct sockaddr_in6 sa;
+	struct bpf_sock *sk;
+
+	/* Verify that new destination is available. */
+	memset(&tuple.ipv6.saddr, 0, sizeof(tuple.ipv6.saddr));
+	memset(&tuple.ipv6.sport, 0, sizeof(tuple.ipv6.sport));
+
+	tuple.ipv6.daddr[0] = bpf_htonl(DST_REWRITE_IP6_0);
+	tuple.ipv6.daddr[1] = bpf_htonl(DST_REWRITE_IP6_1);
+	tuple.ipv6.daddr[2] = bpf_htonl(DST_REWRITE_IP6_2);
+	tuple.ipv6.daddr[3] = bpf_htonl(DST_REWRITE_IP6_3);
+
+	tuple.ipv6.dport = bpf_htons(DST_REWRITE_PORT6);
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 0;
+	else if (ctx->type == SOCK_STREAM)
+		sk = bpf_sk_lookup_tcp(ctx, &tuple, sizeof(tuple.ipv6),
+				       BPF_F_CURRENT_NETNS, 0);
+	else
+		sk = bpf_sk_lookup_udp(ctx, &tuple, sizeof(tuple.ipv6),
+				       BPF_F_CURRENT_NETNS, 0);
+
+	if (!sk)
+		return 0;
+
+	if (sk->src_ip6[0] != tuple.ipv6.daddr[0] ||
+	    sk->src_ip6[1] != tuple.ipv6.daddr[1] ||
+	    sk->src_ip6[2] != tuple.ipv6.daddr[2] ||
+	    sk->src_ip6[3] != tuple.ipv6.daddr[3] ||
+	    sk->src_port != DST_REWRITE_PORT6) {
+		bpf_sk_release(sk);
+		return 0;
+	}
+
+	bpf_sk_release(sk);
+
+	/* Rewrite destination. */
+	ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_0);
+	ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_1);
+	ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_2);
+	ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_3);
+
+	ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
+
+	/* Rewrite source. */
+	memset(&sa, 0, sizeof(sa));
+
+	sa.sin6_family = AF_INET6;
+	sa.sin6_port = bpf_htons(0);
+
+	sa.sin6_addr.s6_addr32[0] = bpf_htonl(SRC_REWRITE_IP6_0);
+	sa.sin6_addr.s6_addr32[1] = bpf_htonl(SRC_REWRITE_IP6_1);
+	sa.sin6_addr.s6_addr32[2] = bpf_htonl(SRC_REWRITE_IP6_2);
+	sa.sin6_addr.s6_addr32[3] = bpf_htonl(SRC_REWRITE_IP6_3);
+
+	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
+		return 0;
+
+	return 1;
+}
+
+SEC("cgroup/connect6")
+int connect_v6_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/connect_force_port4.c b/tools/testing/selftests/bpf/progs/connect_force_port4.c
new file mode 100644
index 000000000000..27a632dd382e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect_force_port4.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <stdbool.h>
+
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct svc_addr {
+	__be32 addr;
+	__be16 port;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct svc_addr);
+} service_mapping SEC(".maps");
+
+SEC("cgroup/connect4")
+int connect4(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in sa = {};
+	struct svc_addr *orig;
+
+	/* Force local address to 127.0.0.1:22222. */
+	sa.sin_family = AF_INET;
+	sa.sin_port = bpf_htons(22222);
+	sa.sin_addr.s_addr = bpf_htonl(0x7f000001);
+
+	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
+		return 0;
+
+	/* Rewire service 1.2.3.4:60000 to backend 127.0.0.1:60123. */
+	if (ctx->user_port == bpf_htons(60000)) {
+		orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0,
+					  BPF_SK_STORAGE_GET_F_CREATE);
+		if (!orig)
+			return 0;
+
+		orig->addr = ctx->user_ip4;
+		orig->port = ctx->user_port;
+
+		ctx->user_ip4 = bpf_htonl(0x7f000001);
+		ctx->user_port = bpf_htons(60123);
+	}
+	return 1;
+}
+
+SEC("cgroup/getsockname4")
+int getsockname4(struct bpf_sock_addr *ctx)
+{
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	/* Expose local server as 1.2.3.4:60000 to client. */
+	if (ctx->user_port == bpf_htons(60123)) {
+		ctx->user_ip4 = bpf_htonl(0x01020304);
+		ctx->user_port = bpf_htons(60000);
+	}
+	return 1;
+}
+
+SEC("cgroup/getpeername4")
+int getpeername4(struct bpf_sock_addr *ctx)
+{
+	struct svc_addr *orig;
+
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	/* Expose service 1.2.3.4:60000 as peer instead of backend. */
+	if (ctx->user_port == bpf_htons(60123)) {
+		orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0, 0);
+		if (orig) {
+			ctx->user_ip4 = orig->addr;
+			ctx->user_port = orig->port;
+		}
+	}
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/connect_force_port6.c b/tools/testing/selftests/bpf/progs/connect_force_port6.c
new file mode 100644
index 000000000000..19cad93e612f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect_force_port6.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct svc_addr {
+	__be32 addr[4];
+	__be16 port;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct svc_addr);
+} service_mapping SEC(".maps");
+
+SEC("cgroup/connect6")
+int connect6(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in6 sa = {};
+	struct svc_addr *orig;
+
+	/* Force local address to [::1]:22223. */
+	sa.sin6_family = AF_INET6;
+	sa.sin6_port = bpf_htons(22223);
+	sa.sin6_addr.s6_addr32[3] = bpf_htonl(1);
+
+	if (bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)) != 0)
+		return 0;
+
+	/* Rewire service [fc00::1]:60000 to backend [::1]:60124. */
+	if (ctx->user_port == bpf_htons(60000)) {
+		orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0,
+					  BPF_SK_STORAGE_GET_F_CREATE);
+		if (!orig)
+			return 0;
+
+		orig->addr[0] = ctx->user_ip6[0];
+		orig->addr[1] = ctx->user_ip6[1];
+		orig->addr[2] = ctx->user_ip6[2];
+		orig->addr[3] = ctx->user_ip6[3];
+		orig->port = ctx->user_port;
+
+		ctx->user_ip6[0] = 0;
+		ctx->user_ip6[1] = 0;
+		ctx->user_ip6[2] = 0;
+		ctx->user_ip6[3] = bpf_htonl(1);
+		ctx->user_port = bpf_htons(60124);
+	}
+	return 1;
+}
+
+SEC("cgroup/getsockname6")
+int getsockname6(struct bpf_sock_addr *ctx)
+{
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	/* Expose local server as [fc00::1]:60000 to client. */
+	if (ctx->user_port == bpf_htons(60124)) {
+		ctx->user_ip6[0] = bpf_htonl(0xfc000000);
+		ctx->user_ip6[1] = 0;
+		ctx->user_ip6[2] = 0;
+		ctx->user_ip6[3] = bpf_htonl(1);
+		ctx->user_port = bpf_htons(60000);
+	}
+	return 1;
+}
+
+SEC("cgroup/getpeername6")
+int getpeername6(struct bpf_sock_addr *ctx)
+{
+	struct svc_addr *orig;
+
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	/* Expose service [fc00::1]:60000 as peer instead of backend. */
+	if (ctx->user_port == bpf_htons(60124)) {
+		orig = bpf_sk_storage_get(&service_mapping, ctx->sk, 0, 0);
+		if (orig) {
+			ctx->user_ip6[0] = orig->addr[0];
+			ctx->user_ip6[1] = orig->addr[1];
+			ctx->user_ip6[2] = orig->addr[2];
+			ctx->user_ip6[3] = orig->addr[3];
+			ctx->user_port = orig->port;
+		}
+	}
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/connect_ping.c b/tools/testing/selftests/bpf/progs/connect_ping.c
new file mode 100644
index 000000000000..60178192b672
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect_ping.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2022 Google LLC.
+ */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+
+/* 2001:db8::1 */
+#define BINDADDR_V6 { { { 0x20,0x01,0x0d,0xb8,0,0,0,0,0,0,0,0,0,0,0,1 } } }
+
+__u32 do_bind = 0;
+__u32 has_error = 0;
+__u32 invocations_v4 = 0;
+__u32 invocations_v6 = 0;
+
+SEC("cgroup/connect4")
+int connect_v4_prog(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in sa = {
+		.sin_family = AF_INET,
+		.sin_addr.s_addr = bpf_htonl(0x01010101),
+	};
+
+	__sync_fetch_and_add(&invocations_v4, 1);
+
+	if (do_bind && bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)))
+		has_error = 1;
+
+	return 1;
+}
+
+SEC("cgroup/connect6")
+int connect_v6_prog(struct bpf_sock_addr *ctx)
+{
+	struct sockaddr_in6 sa = {
+		.sin6_family = AF_INET6,
+		.sin6_addr = BINDADDR_V6,
+	};
+
+	__sync_fetch_and_add(&invocations_v6, 1);
+
+	if (do_bind && bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa)))
+		has_error = 1;
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/connect_unix_prog.c b/tools/testing/selftests/bpf/progs/connect_unix_prog.c
new file mode 100644
index 000000000000..ba60adadb335
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/connect_unix_prog.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite";
+
+SEC("cgroup/connect_unix")
+int connect_unix_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx);
+	struct sockaddr_un *sa_kern_unaddr;
+	__u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) +
+			  sizeof(SERVUN_REWRITE_ADDRESS) - 1;
+	int ret;
+
+	/* Rewrite destination. */
+	ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS,
+					 sizeof(SERVUN_REWRITE_ADDRESS) - 1);
+	if (ret)
+		return 0;
+
+	if (sa_kern->uaddrlen != unaddrlen)
+		return 0;
+
+	sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
+	if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
+			sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
+		return 0;
+
+	return 1;
+}
+
+SEC("cgroup/connect_unix")
+int connect_unix_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/core_kern.c b/tools/testing/selftests/bpf/progs/core_kern.c
new file mode 100644
index 000000000000..004f2acef2eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/core_kern.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+#define ATTR __always_inline
+#include "test_jhash.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, u32);
+	__type(value, u32);
+	__uint(max_entries, 256);
+} array1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, u32);
+	__type(value, u32);
+	__uint(max_entries, 256);
+} array2 SEC(".maps");
+
+static __noinline int randmap(int v, const struct net_device *dev)
+{
+	struct bpf_map *map = (struct bpf_map *)&array1;
+	int key = bpf_get_prandom_u32() & 0xff;
+	int *val;
+
+	if (bpf_get_prandom_u32() & 1)
+		map = (struct bpf_map *)&array2;
+
+	val = bpf_map_lookup_elem(map, &key);
+	if (val)
+		*val = bpf_get_prandom_u32() + v + dev->mtu;
+
+	return 0;
+}
+
+SEC("tp_btf/xdp_devmap_xmit")
+int BPF_PROG(tp_xdp_devmap_xmit_multi, const struct net_device
+	     *from_dev, const struct net_device *to_dev, int sent, int drops,
+	     int err)
+{
+	return randmap(from_dev->ifindex, from_dev);
+}
+
+SEC("fentry/eth_type_trans")
+int BPF_PROG(fentry_eth_type_trans, struct sk_buff *skb,
+	     struct net_device *dev, unsigned short protocol)
+{
+	return randmap(dev->ifindex + skb->len, dev);
+}
+
+SEC("fexit/eth_type_trans")
+int BPF_PROG(fexit_eth_type_trans, struct sk_buff *skb,
+	     struct net_device *dev, unsigned short protocol)
+{
+	return randmap(dev->ifindex + skb->len, dev);
+}
+
+volatile const int never;
+
+struct __sk_bUfF /* it will not exist in vmlinux */ {
+	int len;
+} __attribute__((preserve_access_index));
+
+struct bpf_testmod_test_read_ctx /* it exists in bpf_testmod */ {
+	size_t len;
+} __attribute__((preserve_access_index));
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	void *ptr;
+	int nh_off, i = 0;
+
+	nh_off = 14;
+
+	/* pragma unroll doesn't work on large loops */
+#define C do { \
+	ptr = data + i; \
+	if (ptr + nh_off > data_end) \
+		break; \
+	ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
+	if (never) { \
+		/* below is a dead code with unresolvable CO-RE relo */ \
+		i += ((struct __sk_bUfF *)ctx)->len; \
+		/* this CO-RE relo may or may not resolve
+		 * depending on whether bpf_testmod is loaded.
+		 */ \
+		i += ((struct bpf_testmod_test_read_ctx *)ctx)->len; \
+	} \
+	} while (0);
+#define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
+	C30;C30;C30; /* 90 calls */
+	return 0;
+}
+
+typedef int (*func_proto_typedef___match)(long);
+typedef int (*func_proto_typedef___doesnt_match)(char *);
+typedef int (*func_proto_typedef_nested1)(func_proto_typedef___match);
+
+int proto_out[3];
+
+SEC("raw_tracepoint/sys_enter")
+int core_relo_proto(void *ctx)
+{
+	proto_out[0] = bpf_core_type_exists(func_proto_typedef___match);
+	proto_out[1] = bpf_core_type_exists(func_proto_typedef___doesnt_match);
+	proto_out[2] = bpf_core_type_exists(func_proto_typedef_nested1);
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/core_kern_overflow.c b/tools/testing/selftests/bpf/progs/core_kern_overflow.c
new file mode 100644
index 000000000000..f0d5652256ba
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/core_kern_overflow.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+typedef int (*func_proto_typedef)(long);
+typedef int (*func_proto_typedef_nested1)(func_proto_typedef);
+typedef int (*func_proto_typedef_nested2)(func_proto_typedef_nested1);
+
+int proto_out;
+
+SEC("raw_tracepoint/sys_enter")
+int core_relo_proto(void *ctx)
+{
+	proto_out = bpf_core_type_exists(func_proto_typedef_nested2);
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/core_reloc_types.h b/tools/testing/selftests/bpf/progs/core_reloc_types.h
new file mode 100644
index 000000000000..5760ae015e09
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/core_reloc_types.h
@@ -0,0 +1,1363 @@
+#include <stdint.h>
+#include <stdbool.h>
+
+void preserce_ptr_sz_fn(long x) {}
+
+#define __bpf_aligned __attribute__((aligned(8)))
+
+/*
+ * KERNEL
+ */
+
+struct core_reloc_kernel_output {
+	int valid[10];
+	char comm[sizeof("test_progs")];
+	int comm_len;
+	bool local_task_struct_matches;
+};
+
+/*
+ * MODULE
+ */
+
+struct core_reloc_module_output {
+	long long len;
+	long long off;
+	int read_ctx_sz;
+	bool read_ctx_exists;
+	bool buf_exists;
+	bool len_exists;
+	bool off_exists;
+	/* we have test_progs[-flavor], so cut flavor part */
+	char comm[sizeof("test_progs")];
+	int comm_len;
+};
+
+/*
+ * FLAVORS
+ */
+struct core_reloc_flavors {
+	int a;
+	int b;
+	int c;
+};
+
+/* this is not a flavor, as it doesn't have triple underscore */
+struct core_reloc_flavors__err_wrong_name {
+	int a;
+	int b;
+	int c;
+};
+
+/*
+ * NESTING
+ */
+/* original set up, used to record relocations in BPF program */
+struct core_reloc_nesting_substruct {
+	int a;
+};
+
+union core_reloc_nesting_subunion {
+	int b;
+};
+
+struct core_reloc_nesting {
+	union {
+		struct core_reloc_nesting_substruct a;
+	} a;
+	struct {
+		union core_reloc_nesting_subunion b;
+	} b;
+};
+
+/* inlined anonymous struct/union instead of named structs in original */
+struct core_reloc_nesting___anon_embed {
+	int __just_for_padding;
+	union {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		union {
+			int b;
+		} b;
+	} b;
+};
+
+/* different mix of nested structs/unions than in original */
+struct core_reloc_nesting___struct_union_mixup {
+	int __a;
+	struct {
+		int __a;
+		union {
+			char __a;
+			int a;
+		} a;
+	} a;
+	int __b;
+	union {
+		int __b;
+		union {
+			char __b;
+			int b;
+		} b;
+	} b;
+};
+
+/* extra anon structs/unions, but still valid a.a.a and b.b.b accessors */
+struct core_reloc_nesting___extra_nesting {
+	int __padding;
+	struct {
+		struct {
+			struct {
+				struct {
+					union {
+						int a;
+					} a;
+				};
+			};
+		} a;
+		int __some_more;
+		struct {
+			union {
+				union {
+					union {
+						struct {
+							int b;
+						};
+					} b;
+				};
+			} b;
+		};
+	};
+};
+
+/* three flavors of same struct with different structure but same layout for
+ * a.a.a and b.b.b, thus successfully resolved and relocatable */
+struct core_reloc_nesting___dup_compat_types {
+	char __just_for_padding;
+	/* 3 more bytes of padding */
+	struct {
+		struct {
+			int a; /* offset 4 */
+		} a;
+	} a;
+	long long __more_padding;
+	struct {
+		struct {
+			int b; /* offset 16 */
+		} b;
+	} b;
+};
+
+struct core_reloc_nesting___dup_compat_types__2 {
+	int __aligned_padding;
+	struct {
+		int __trickier_noop[0];
+		struct {
+			char __some_more_noops[0];
+			int a; /* offset 4 */
+		} a;
+	} a;
+	int __more_padding;
+	struct {
+		struct {
+			struct {
+				int __critical_padding;
+				int b; /* offset 16 */
+			} b;
+			int __does_not_matter;
+		};
+	} b;
+	int __more_irrelevant_stuff;
+};
+
+struct core_reloc_nesting___dup_compat_types__3 {
+	char __correct_padding[4];
+	struct {
+		struct {
+			int a; /* offset 4 */
+		} a;
+	} a;
+	/* 8 byte padding due to next struct's alignment */
+	struct {
+		struct {
+			int b;
+		} b;
+	} b __attribute__((aligned(16)));
+};
+
+/* b.b.b field is missing */
+struct core_reloc_nesting___err_missing_field {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		struct {
+			int x;
+		} b;
+	} b;
+};
+
+/* b.b.b field is an array of integers instead of plain int */
+struct core_reloc_nesting___err_array_field {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		struct {
+			int b[1];
+		} b;
+	} b;
+};
+
+/* middle b container is missing */
+struct core_reloc_nesting___err_missing_container {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		int x;
+	} b;
+};
+
+/* middle b container is referenced through pointer instead of being embedded */
+struct core_reloc_nesting___err_nonstruct_container {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		struct {
+			int b;
+		} *b;
+	} b;
+};
+
+/* middle b container is an array of structs instead of plain struct */
+struct core_reloc_nesting___err_array_container {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	struct {
+		struct {
+			int b;
+		} b[1];
+	} b;
+};
+
+/* two flavors of same struct with incompatible layout for b.b.b */
+struct core_reloc_nesting___err_dup_incompat_types__1 {
+	struct {
+		struct {
+			int a; /* offset 0 */
+		} a;
+	} a;
+	struct {
+		struct {
+			int b; /* offset 4 */
+		} b;
+	} b;
+};
+
+struct core_reloc_nesting___err_dup_incompat_types__2 {
+	struct {
+		struct {
+			int a; /* offset 0 */
+		} a;
+	} a;
+	int __extra_padding;
+	struct {
+		struct {
+			int b; /* offset 8 (!) */
+		} b;
+	} b;
+};
+
+/* two flavors of same struct having one of a.a.a and b.b.b, but not both */
+struct core_reloc_nesting___err_partial_match_dups__a {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+};
+
+struct core_reloc_nesting___err_partial_match_dups__b {
+	struct {
+		struct {
+			int b;
+		} b;
+	} b;
+};
+
+struct core_reloc_nesting___err_too_deep {
+	struct {
+		struct {
+			int a;
+		} a;
+	} a;
+	/* 65 levels of nestedness for b.b.b */
+	struct {
+		struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+			struct { struct { struct { struct { struct {
+				/* this one is one too much */
+				struct {
+					int b;
+				};
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+			}; }; }; }; };
+		} b;
+	} b;
+};
+
+/*
+ * ARRAYS
+ */
+struct core_reloc_arrays_output {
+	int a2;
+	int a3;
+	char b123;
+	int c1c;
+	int d00d;
+	int f10c;
+};
+
+struct core_reloc_arrays_substruct {
+	int c;
+	int d;
+};
+
+struct core_reloc_arrays {
+	int a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+/* bigger array dimensions */
+struct core_reloc_arrays___diff_arr_dim {
+	int a[7];
+	char b[3][4][5];
+	struct core_reloc_arrays_substruct c[4];
+	struct core_reloc_arrays_substruct d[2][3];
+	struct core_reloc_arrays_substruct f[1][3];
+};
+
+/* different size of array's value (struct) */
+struct core_reloc_arrays___diff_arr_val_sz {
+	int a[5];
+	char b[2][3][4];
+	struct {
+		int __padding1;
+		int c;
+		int __padding2;
+	} c[3];
+	struct {
+		int __padding1;
+		int d;
+		int __padding2;
+	} d[1][2];
+	struct {
+		int __padding1;
+		int c;
+		int __padding2;
+	} f[][2];
+};
+
+struct core_reloc_arrays___equiv_zero_sz_arr {
+	int a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	/* equivalent to flexible array */
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+struct core_reloc_arrays___fixed_arr {
+	int a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	/* not a flexible array anymore, but within access bounds */
+	struct core_reloc_arrays_substruct f[1][2];
+};
+
+struct core_reloc_arrays___err_too_small {
+	int a[2]; /* this one is too small */
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+struct core_reloc_arrays___err_too_shallow {
+	int a[5];
+	char b[2][3]; /* this one lacks one dimension */
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+struct core_reloc_arrays___err_non_array {
+	int a; /* not an array */
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+struct core_reloc_arrays___err_wrong_val_type {
+	int a[5];
+	char b[2][3][4];
+	int c[3]; /* value is not a struct */
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+struct core_reloc_arrays___err_bad_zero_sz_arr {
+	/* zero-sized array, but not at the end */
+	struct core_reloc_arrays_substruct f[0][2];
+	int a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+};
+
+struct core_reloc_arrays___err_bad_signed_arr_elem_sz {
+	/* int -> short (signed!): not supported case */
+	short a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+/*
+ * PRIMITIVES
+ */
+enum core_reloc_primitives_enum {
+	A = 0,
+	B = 1,
+};
+
+struct core_reloc_primitives {
+	char a;
+	int b;
+	enum core_reloc_primitives_enum c;
+	void *d __bpf_aligned;
+	int (*f)(const char *) __bpf_aligned;
+};
+
+struct core_reloc_primitives___diff_enum_def {
+	char a;
+	int b;
+	void *d __bpf_aligned;
+	int (*f)(const char *) __bpf_aligned;
+	enum {
+		X = 100,
+		Y = 200,
+	} c __bpf_aligned; /* inline enum def with differing set of values */
+};
+
+struct core_reloc_primitives___diff_func_proto {
+	void (*f)(int) __bpf_aligned; /* incompatible function prototype */
+	void *d __bpf_aligned;
+	enum core_reloc_primitives_enum c __bpf_aligned;
+	int b;
+	char a;
+};
+
+struct core_reloc_primitives___diff_ptr_type {
+	const char * const d __bpf_aligned; /* different pointee type + modifiers */
+	char a __bpf_aligned;
+	int b;
+	enum core_reloc_primitives_enum c;
+	int (*f)(const char *) __bpf_aligned;
+};
+
+struct core_reloc_primitives___err_non_enum {
+	char a[1];
+	int b;
+	int c; /* int instead of enum */
+	void *d __bpf_aligned;
+	int (*f)(const char *) __bpf_aligned;
+};
+
+struct core_reloc_primitives___err_non_int {
+	char a[1];
+	int *b __bpf_aligned; /* ptr instead of int */
+	enum core_reloc_primitives_enum c __bpf_aligned;
+	void *d __bpf_aligned;
+	int (*f)(const char *) __bpf_aligned;
+};
+
+struct core_reloc_primitives___err_non_ptr {
+	char a[1];
+	int b;
+	enum core_reloc_primitives_enum c;
+	int d; /* int instead of ptr */
+	int (*f)(const char *) __bpf_aligned;
+};
+
+/*
+ * MODS
+ */
+struct core_reloc_mods_output {
+	int a, b, c, d, e, f, g, h;
+};
+
+typedef const int int_t;
+typedef const char *char_ptr_t __bpf_aligned;
+typedef const int arr_t[7];
+
+struct core_reloc_mods_substruct {
+	int x;
+	int y;
+};
+
+typedef struct {
+	int x;
+	int y;
+} core_reloc_mods_substruct_t;
+
+struct core_reloc_mods {
+	int a;
+	int_t b;
+	char *c __bpf_aligned;
+	char_ptr_t d;
+	int e[3] __bpf_aligned;
+	arr_t f;
+	struct core_reloc_mods_substruct g;
+	core_reloc_mods_substruct_t h;
+};
+
+/* a/b, c/d, e/f, and g/h pairs are swapped */
+struct core_reloc_mods___mod_swap {
+	int b;
+	int_t a;
+	char *d __bpf_aligned;
+	char_ptr_t c;
+	int f[3] __bpf_aligned;
+	arr_t e;
+	struct {
+		int y;
+		int x;
+	} h;
+	core_reloc_mods_substruct_t g;
+};
+
+typedef int int1_t;
+typedef int1_t int2_t;
+typedef int2_t int3_t;
+
+typedef int arr1_t[5];
+typedef arr1_t arr2_t;
+typedef arr2_t arr3_t;
+typedef arr3_t arr4_t;
+
+typedef const char * const volatile fancy_char_ptr_t __bpf_aligned;
+
+typedef core_reloc_mods_substruct_t core_reloc_mods_substruct_tt;
+
+/* we need more typedefs */
+struct core_reloc_mods___typedefs {
+	core_reloc_mods_substruct_tt g;
+	core_reloc_mods_substruct_tt h;
+	arr4_t f;
+	arr4_t e;
+	fancy_char_ptr_t d;
+	fancy_char_ptr_t c;
+	int3_t b __bpf_aligned;
+	int3_t a;
+};
+
+/*
+ * PTR_AS_ARR
+ */
+struct core_reloc_ptr_as_arr {
+	int a;
+};
+
+struct core_reloc_ptr_as_arr___diff_sz {
+	int :32; /* padding */
+	char __some_more_padding;
+	int a;
+};
+
+/*
+ * INTS
+ */
+struct core_reloc_ints {
+	uint8_t		u8_field;
+	int8_t		s8_field;
+	uint16_t	u16_field;
+	int16_t		s16_field;
+	uint32_t	u32_field;
+	int32_t		s32_field;
+	uint64_t	u64_field;
+	int64_t		s64_field;
+};
+
+/* signed/unsigned types swap */
+struct core_reloc_ints___reverse_sign {
+	int8_t		u8_field;
+	uint8_t		s8_field;
+	int16_t		u16_field;
+	uint16_t	s16_field;
+	int32_t		u32_field;
+	uint32_t	s32_field;
+	int64_t		u64_field;
+	uint64_t	s64_field;
+};
+
+struct core_reloc_ints___bool {
+	bool		u8_field; /* bool instead of uint8 */
+	int8_t		s8_field;
+	uint16_t	u16_field;
+	int16_t		s16_field;
+	uint32_t	u32_field;
+	int32_t		s32_field;
+	uint64_t	u64_field;
+	int64_t		s64_field;
+};
+
+/*
+ * MISC
+ */
+struct core_reloc_misc_output {
+	int a, b, c;
+};
+
+struct core_reloc_misc___a {
+	int a1;
+	int a2;
+};
+
+struct core_reloc_misc___b {
+	int b1;
+	int b2;
+};
+
+/* this one extends core_reloc_misc_extensible struct from BPF prog */
+struct core_reloc_misc_extensible {
+	int a;
+	int b;
+	int c;
+	int d;
+};
+
+/*
+ * FIELD EXISTENCE
+ */
+struct core_reloc_existence_output {
+	int a_exists;
+	int a_value;
+	int b_exists;
+	int b_value;
+	int c_exists;
+	int c_value;
+	int arr_exists;
+	int arr_value;
+	int s_exists;
+	int s_value;
+};
+
+struct core_reloc_existence {
+	int a;
+	struct {
+		int b;
+	};
+	int c;
+	int arr[1];
+	struct {
+		int x;
+	} s;
+};
+
+struct core_reloc_existence___minimal {
+	int a;
+};
+
+struct core_reloc_existence___wrong_field_defs {
+	void *a;
+	int b[1];
+	struct{ int x; } c;
+	int arr;
+	int s;
+};
+
+/*
+ * BITFIELDS
+ */
+/* bitfield read results, all as plain integers */
+struct core_reloc_bitfields_output {
+	int64_t		ub1;
+	int64_t		ub2;
+	int64_t		ub7;
+	int64_t		sb4;
+	int64_t		sb20;
+	int64_t		u32;
+	int64_t		s32;
+};
+
+struct core_reloc_bitfields {
+	/* unsigned bitfields */
+	uint8_t		ub1: 1;
+	uint8_t		ub2: 2;
+	uint32_t	ub7: 7;
+	/* signed bitfields */
+	int8_t		sb4: 4;
+	int32_t		sb20: 20;
+	/* non-bitfields */
+	uint32_t	u32;
+	int32_t		s32;
+};
+
+/* different bit sizes (both up and down) */
+struct core_reloc_bitfields___bit_sz_change {
+	/* unsigned bitfields */
+	uint16_t	ub1: 3;		/*  1 ->  3 */
+	uint32_t	ub2: 20;	/*  2 -> 20 */
+	uint8_t		ub7: 1;		/*  7 ->  1 */
+	/* signed bitfields */
+	int8_t		sb4: 1;		/*  4 ->  1 */
+	int32_t		sb20: 30;	/* 20 -> 30 */
+	/* non-bitfields */
+	uint16_t	u32;			/* 32 -> 16 */
+	int64_t		s32 __bpf_aligned;	/* 32 -> 64 */
+};
+
+/* turn bitfield into non-bitfield and vice versa */
+struct core_reloc_bitfields___bitfield_vs_int {
+	uint64_t	ub1;		/*  3 -> 64 non-bitfield */
+	uint8_t		ub2;		/* 20 ->  8 non-bitfield */
+	int64_t		ub7 __bpf_aligned;	/*  7 -> 64 non-bitfield signed */
+	int64_t		sb4 __bpf_aligned;	/*  4 -> 64 non-bitfield signed */
+	uint64_t	sb20 __bpf_aligned;	/* 20 -> 16 non-bitfield unsigned */
+	int32_t		u32: 20;		/* 32 non-bitfield -> 20 bitfield */
+	uint64_t	s32: 60 __bpf_aligned;	/* 32 non-bitfield -> 60 bitfield */
+};
+
+struct core_reloc_bitfields___just_big_enough {
+	uint64_t	ub1: 4;
+	uint64_t	ub2: 60; /* packed tightly */
+	uint32_t	ub7;
+	uint32_t	sb4;
+	uint32_t	sb20;
+	uint32_t	u32;
+	uint32_t	s32;
+} __attribute__((packed)) ;
+
+struct core_reloc_bitfields___err_too_big_bitfield {
+	uint64_t	ub1: 4;
+	uint64_t	ub2: 61; /* packed tightly */
+	uint32_t	ub7;
+	uint32_t	sb4;
+	uint32_t	sb20;
+	uint32_t	u32;
+	uint32_t	s32;
+} __attribute__((packed)) ;
+
+/*
+ * SIZE
+ */
+struct core_reloc_size_output {
+	int int_sz;
+	int int_off;
+	int struct_sz;
+	int struct_off;
+	int union_sz;
+	int union_off;
+	int arr_sz;
+	int arr_off;
+	int arr_elem_sz;
+	int arr_elem_off;
+	int ptr_sz;
+	int ptr_off;
+	int enum_sz;
+	int enum_off;
+	int float_sz;
+	int float_off;
+};
+
+struct core_reloc_size {
+	int int_field;
+	struct { int x; } struct_field;
+	union { int x; } union_field;
+	int arr_field[4];
+	void *ptr_field;
+	enum { VALUE = 123 } enum_field;
+	float float_field;
+};
+
+struct core_reloc_size___diff_sz {
+	uint64_t int_field;
+	struct { int x; int y; int z; } struct_field;
+	union { int x; char bla[123]; } union_field;
+	char arr_field[10];
+	void *ptr_field;
+	enum { OTHER_VALUE = 0xFFFFFFFFFFFFFFFF } enum_field;
+	double float_field;
+};
+
+struct core_reloc_size___diff_offs {
+	float float_field;
+	enum { YET_OTHER_VALUE = 123 } enum_field;
+	void *ptr_field;
+	int arr_field[4];
+	union { int x; } union_field;
+	struct { int x; } struct_field;
+	int int_field;
+};
+
+/* Error case of two candidates with the fields (int_field) at the same
+ * offset, but with differing final relocation values: size 4 vs size 1
+ */
+struct core_reloc_size___err_ambiguous1 {
+	/* int at offset 0 */
+	int int_field;
+
+	struct { int x; } struct_field;
+	union { int x; } union_field;
+	int arr_field[4];
+	void *ptr_field;
+	enum { VALUE___1 = 123 } enum_field;
+	float float_field;
+};
+
+struct core_reloc_size___err_ambiguous2 {
+	/* char at offset 0 */
+	char int_field;
+
+	struct { int x; } struct_field;
+	union { int x; } union_field;
+	int arr_field[4];
+	void *ptr_field;
+	enum { VALUE___2 = 123 } enum_field;
+	float float_field;
+};
+
+/*
+ * TYPE EXISTENCE, MATCH & SIZE
+ */
+struct core_reloc_type_based_output {
+	bool struct_exists;
+	bool complex_struct_exists;
+	bool union_exists;
+	bool enum_exists;
+	bool typedef_named_struct_exists;
+	bool typedef_anon_struct_exists;
+	bool typedef_struct_ptr_exists;
+	bool typedef_int_exists;
+	bool typedef_enum_exists;
+	bool typedef_void_ptr_exists;
+	bool typedef_restrict_ptr_exists;
+	bool typedef_func_proto_exists;
+	bool typedef_arr_exists;
+
+	bool struct_matches;
+	bool complex_struct_matches;
+	bool union_matches;
+	bool enum_matches;
+	bool typedef_named_struct_matches;
+	bool typedef_anon_struct_matches;
+	bool typedef_struct_ptr_matches;
+	bool typedef_int_matches;
+	bool typedef_enum_matches;
+	bool typedef_void_ptr_matches;
+	bool typedef_restrict_ptr_matches;
+	bool typedef_func_proto_matches;
+	bool typedef_arr_matches;
+
+	int struct_sz;
+	int union_sz;
+	int enum_sz;
+	int typedef_named_struct_sz;
+	int typedef_anon_struct_sz;
+	int typedef_struct_ptr_sz;
+	int typedef_int_sz;
+	int typedef_enum_sz;
+	int typedef_void_ptr_sz;
+	int typedef_func_proto_sz;
+	int typedef_arr_sz;
+};
+
+struct a_struct {
+	int x;
+};
+
+struct a_complex_struct {
+	union {
+		struct a_struct * restrict a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
+union a_union {
+	int y;
+	int z;
+};
+
+typedef struct a_struct named_struct_typedef;
+
+typedef struct { int x, y, z; } anon_struct_typedef;
+
+typedef struct {
+	int a, b, c;
+} *struct_ptr_typedef;
+
+enum an_enum {
+	AN_ENUM_VAL1 = 1,
+	AN_ENUM_VAL2 = 2,
+	AN_ENUM_VAL3 = 3,
+};
+
+typedef int int_typedef;
+
+typedef enum { TYPEDEF_ENUM_VAL1, TYPEDEF_ENUM_VAL2 } enum_typedef;
+
+typedef void *void_ptr_typedef;
+typedef int *restrict restrict_ptr_typedef;
+
+typedef int (*func_proto_typedef)(long);
+
+typedef char arr_typedef[20];
+
+struct core_reloc_type_based {
+	struct a_struct f1;
+	struct a_complex_struct f2;
+	union a_union f3;
+	enum an_enum f4;
+	named_struct_typedef f5;
+	anon_struct_typedef f6;
+	struct_ptr_typedef f7;
+	int_typedef f8;
+	enum_typedef f9;
+	void_ptr_typedef f10;
+	restrict_ptr_typedef f11;
+	func_proto_typedef f12;
+	arr_typedef f13;
+};
+
+/* no types in target */
+struct core_reloc_type_based___all_missing {
+};
+
+/* different member orders, enum variant values, signedness, etc */
+struct a_struct___diff {
+	int x;
+	int a;
+};
+
+struct a_struct___forward;
+
+struct a_complex_struct___diff {
+	union {
+		struct a_struct___forward *a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
+union a_union___diff {
+	int z;
+	int y;
+};
+
+typedef struct a_struct___diff named_struct_typedef___diff;
+
+typedef struct { int z, x, y; } anon_struct_typedef___diff;
+
+typedef struct {
+	int c;
+	int b;
+	int a;
+} *struct_ptr_typedef___diff;
+
+enum an_enum___diff {
+	AN_ENUM_VAL2___diff = 0,
+	AN_ENUM_VAL1___diff = 42,
+	AN_ENUM_VAL3___diff = 1,
+};
+
+typedef unsigned int int_typedef___diff;
+
+typedef enum { TYPEDEF_ENUM_VAL2___diff, TYPEDEF_ENUM_VAL1___diff = 50 } enum_typedef___diff;
+
+typedef const void *void_ptr_typedef___diff;
+
+typedef int_typedef___diff (*func_proto_typedef___diff)(long);
+
+typedef char arr_typedef___diff[3];
+
+struct core_reloc_type_based___diff {
+	struct a_struct___diff f1;
+	struct a_complex_struct___diff f2;
+	union a_union___diff f3;
+	enum an_enum___diff f4;
+	named_struct_typedef___diff f5;
+	anon_struct_typedef___diff f6;
+	struct_ptr_typedef___diff f7;
+	int_typedef___diff f8;
+	enum_typedef___diff f9;
+	void_ptr_typedef___diff f10;
+	func_proto_typedef___diff f11;
+	arr_typedef___diff f12;
+};
+
+/* different type sizes, extra modifiers, anon vs named enums, etc */
+struct a_struct___diff_sz {
+	long x;
+	int y;
+	char z;
+};
+
+union a_union___diff_sz {
+	char yy;
+	char zz;
+};
+
+typedef struct a_struct___diff_sz named_struct_typedef___diff_sz;
+
+typedef struct { long xx, yy, zzz; } anon_struct_typedef___diff_sz;
+
+typedef struct {
+	char aa[1], bb[2], cc[3];
+} *struct_ptr_typedef___diff_sz;
+
+enum an_enum___diff_sz {
+	AN_ENUM_VAL1___diff_sz = 0x123412341234,
+	AN_ENUM_VAL2___diff_sz = 2,
+};
+
+typedef unsigned long int_typedef___diff_sz;
+
+typedef enum an_enum___diff_sz enum_typedef___diff_sz;
+
+typedef const void * const void_ptr_typedef___diff_sz;
+
+typedef int_typedef___diff_sz (*func_proto_typedef___diff_sz)(char);
+
+typedef int arr_typedef___diff_sz[2];
+
+struct core_reloc_type_based___diff_sz {
+	struct a_struct___diff_sz f1;
+	union a_union___diff_sz f2;
+	enum an_enum___diff_sz f3;
+	named_struct_typedef___diff_sz f4;
+	anon_struct_typedef___diff_sz f5;
+	struct_ptr_typedef___diff_sz f6;
+	int_typedef___diff_sz f7;
+	enum_typedef___diff_sz f8;
+	void_ptr_typedef___diff_sz f9;
+	func_proto_typedef___diff_sz f10;
+	arr_typedef___diff_sz f11;
+};
+
+/* incompatibilities between target and local types */
+union a_struct___incompat { /* union instead of struct */
+	int x;
+};
+
+struct a_union___incompat { /* struct instead of union */
+	int y;
+	int z;
+};
+
+/* typedef to union, not to struct */
+typedef union a_struct___incompat named_struct_typedef___incompat;
+
+/* typedef to void pointer, instead of struct */
+typedef void *anon_struct_typedef___incompat;
+
+/* extra pointer indirection */
+typedef struct {
+	int a, b, c;
+} **struct_ptr_typedef___incompat;
+
+/* typedef of a struct with int, instead of int */
+typedef struct { int x; } int_typedef___incompat;
+
+/* typedef to func_proto, instead of enum */
+typedef int (*enum_typedef___incompat)(void);
+
+/* pointer to char instead of void */
+typedef char *void_ptr_typedef___incompat;
+
+/* void return type instead of int */
+typedef void (*func_proto_typedef___incompat)(long);
+
+/* multi-dimensional array instead of a single-dimensional */
+typedef int arr_typedef___incompat[20][2];
+
+struct core_reloc_type_based___incompat {
+	union a_struct___incompat f1;
+	struct a_union___incompat f2;
+	/* the only valid one is enum, to check that something still succeeds */
+	enum an_enum f3;
+	named_struct_typedef___incompat f4;
+	anon_struct_typedef___incompat f5;
+	struct_ptr_typedef___incompat f6;
+	int_typedef___incompat f7;
+	enum_typedef___incompat f8;
+	void_ptr_typedef___incompat f9;
+	func_proto_typedef___incompat f10;
+	arr_typedef___incompat f11;
+};
+
+/* func_proto with incompatible signature */
+typedef void (*func_proto_typedef___fn_wrong_ret1)(long);
+typedef int * (*func_proto_typedef___fn_wrong_ret2)(long);
+typedef struct { int x; } int_struct_typedef;
+typedef int_struct_typedef (*func_proto_typedef___fn_wrong_ret3)(long);
+typedef int (*func_proto_typedef___fn_wrong_arg)(void *);
+typedef int (*func_proto_typedef___fn_wrong_arg_cnt1)(long, long);
+typedef int (*func_proto_typedef___fn_wrong_arg_cnt2)(void);
+
+struct core_reloc_type_based___fn_wrong_args {
+	/* one valid type to make sure relos still work */
+	struct a_struct f1;
+	func_proto_typedef___fn_wrong_ret1 f2;
+	func_proto_typedef___fn_wrong_ret2 f3;
+	func_proto_typedef___fn_wrong_ret3 f4;
+	func_proto_typedef___fn_wrong_arg f5;
+	func_proto_typedef___fn_wrong_arg_cnt1 f6;
+	func_proto_typedef___fn_wrong_arg_cnt2 f7;
+};
+
+/*
+ * TYPE ID MAPPING (LOCAL AND TARGET)
+ */
+struct core_reloc_type_id_output {
+	int local_anon_struct;
+	int local_anon_union;
+	int local_anon_enum;
+	int local_anon_func_proto_ptr;
+	int local_anon_void_ptr;
+	int local_anon_arr;
+
+	int local_struct;
+	int local_union;
+	int local_enum;
+	int local_int;
+	int local_struct_typedef;
+	int local_func_proto_typedef;
+	int local_arr_typedef;
+
+	int targ_struct;
+	int targ_union;
+	int targ_enum;
+	int targ_int;
+	int targ_struct_typedef;
+	int targ_func_proto_typedef;
+	int targ_arr_typedef;
+};
+
+struct core_reloc_type_id {
+	struct a_struct f1;
+	union a_union f2;
+	enum an_enum f3;
+	named_struct_typedef f4;
+	func_proto_typedef f5;
+	arr_typedef f6;
+};
+
+struct core_reloc_type_id___missing_targets {
+	/* nothing */
+};
+
+/*
+ * ENUMERATOR VALUE EXISTENCE AND VALUE RELOCATION
+ */
+struct core_reloc_enumval_output {
+	bool named_val1_exists;
+	bool named_val2_exists;
+	bool named_val3_exists;
+	bool anon_val1_exists;
+	bool anon_val2_exists;
+	bool anon_val3_exists;
+
+	int named_val1;
+	int named_val2;
+	int anon_val1;
+	int anon_val2;
+};
+
+struct core_reloc_enum64val_output {
+	bool unsigned_val1_exists;
+	bool unsigned_val2_exists;
+	bool unsigned_val3_exists;
+	bool signed_val1_exists;
+	bool signed_val2_exists;
+	bool signed_val3_exists;
+
+	long unsigned_val1;
+	long unsigned_val2;
+	long signed_val1;
+	long signed_val2;
+};
+
+enum named_enum {
+	NAMED_ENUM_VAL1 = 1,
+	NAMED_ENUM_VAL2 = 2,
+	NAMED_ENUM_VAL3 = 3,
+};
+
+typedef enum {
+	ANON_ENUM_VAL1 = 0x10,
+	ANON_ENUM_VAL2 = 0x20,
+	ANON_ENUM_VAL3 = 0x30,
+} anon_enum;
+
+struct core_reloc_enumval {
+	enum named_enum f1;
+	anon_enum f2;
+};
+
+enum named_unsigned_enum64 {
+	UNSIGNED_ENUM64_VAL1 = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL2 = 0x2,
+	UNSIGNED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64 {
+	SIGNED_ENUM64_VAL1 = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL2 = -2,
+	SIGNED_ENUM64_VAL3 = 0x3ffffffffLL,
+};
+
+struct core_reloc_enum64val {
+	enum named_unsigned_enum64 f1;
+	enum named_signed_enum64 f2;
+};
+
+/* differing enumerator values */
+enum named_enum___diff {
+	NAMED_ENUM_VAL1___diff = 101,
+	NAMED_ENUM_VAL2___diff = 202,
+	NAMED_ENUM_VAL3___diff = 303,
+};
+
+typedef enum {
+	ANON_ENUM_VAL1___diff = 0x11,
+	ANON_ENUM_VAL2___diff = 0x22,
+	ANON_ENUM_VAL3___diff = 0x33,
+} anon_enum___diff;
+
+struct core_reloc_enumval___diff {
+	enum named_enum___diff f1;
+	anon_enum___diff f2;
+};
+
+enum named_unsigned_enum64___diff {
+	UNSIGNED_ENUM64_VAL1___diff = 0x101ffffffffULL,
+	UNSIGNED_ENUM64_VAL2___diff = 0x202ffffffffULL,
+	UNSIGNED_ENUM64_VAL3___diff = 0x303ffffffffULL,
+};
+
+enum named_signed_enum64___diff {
+	SIGNED_ENUM64_VAL1___diff = -101,
+	SIGNED_ENUM64_VAL2___diff = -202,
+	SIGNED_ENUM64_VAL3___diff = -303,
+};
+
+struct core_reloc_enum64val___diff {
+	enum named_unsigned_enum64___diff f1;
+	enum named_signed_enum64___diff f2;
+};
+
+/* missing (optional) third enum value */
+enum named_enum___val3_missing {
+	NAMED_ENUM_VAL1___val3_missing = 111,
+	NAMED_ENUM_VAL2___val3_missing = 222,
+};
+
+typedef enum {
+	ANON_ENUM_VAL1___val3_missing = 0x111,
+	ANON_ENUM_VAL2___val3_missing = 0x222,
+} anon_enum___val3_missing;
+
+struct core_reloc_enumval___val3_missing {
+	enum named_enum___val3_missing f1;
+	anon_enum___val3_missing f2;
+};
+
+enum named_unsigned_enum64___val3_missing {
+	UNSIGNED_ENUM64_VAL1___val3_missing = 0x111ffffffffULL,
+	UNSIGNED_ENUM64_VAL2___val3_missing = 0x222,
+};
+
+enum named_signed_enum64___val3_missing {
+	SIGNED_ENUM64_VAL1___val3_missing = 0x111ffffffffLL,
+	SIGNED_ENUM64_VAL2___val3_missing = -222,
+};
+
+struct core_reloc_enum64val___val3_missing {
+	enum named_unsigned_enum64___val3_missing f1;
+	enum named_signed_enum64___val3_missing f2;
+};
+
+/* missing (mandatory) second enum value, should fail */
+enum named_enum___err_missing {
+	NAMED_ENUM_VAL1___err_missing = 1,
+	NAMED_ENUM_VAL3___err_missing = 3,
+};
+
+typedef enum {
+	ANON_ENUM_VAL1___err_missing = 0x111,
+	ANON_ENUM_VAL3___err_missing = 0x222,
+} anon_enum___err_missing;
+
+struct core_reloc_enumval___err_missing {
+	enum named_enum___err_missing f1;
+	anon_enum___err_missing f2;
+};
+
+enum named_unsigned_enum64___err_missing {
+	UNSIGNED_ENUM64_VAL1___err_missing = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL3___err_missing = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64___err_missing {
+	SIGNED_ENUM64_VAL1___err_missing = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL3___err_missing = -3,
+};
+
+struct core_reloc_enum64val___err_missing {
+	enum named_unsigned_enum64___err_missing f1;
+	enum named_signed_enum64___err_missing f2;
+};
diff --git a/tools/testing/selftests/bpf/progs/cpumask_common.h b/tools/testing/selftests/bpf/progs/cpumask_common.h
new file mode 100644
index 000000000000..86085b79f5ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cpumask_common.h
@@ -0,0 +1,129 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _CPUMASK_COMMON_H
+#define _CPUMASK_COMMON_H
+
+#include "errno.h"
+#include <stdbool.h>
+
+/* Should use BTF_FIELDS_MAX, but it is not always available in vmlinux.h,
+ * so use the hard-coded number as a workaround.
+ */
+#define CPUMASK_KPTR_FIELDS_MAX 11
+
+int err;
+
+#define private(name) SEC(".bss." #name) __attribute__((aligned(8)))
+private(MASK) static struct bpf_cpumask __kptr * global_mask;
+
+struct __cpumask_map_value {
+	struct bpf_cpumask __kptr * cpumask;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct __cpumask_map_value);
+	__uint(max_entries, 1);
+} __cpumask_map SEC(".maps");
+
+struct bpf_cpumask *bpf_cpumask_create(void) __ksym __weak;
+void bpf_cpumask_release(struct bpf_cpumask *cpumask) __ksym __weak;
+struct bpf_cpumask *bpf_cpumask_acquire(struct bpf_cpumask *cpumask) __ksym __weak;
+u32 bpf_cpumask_first(const struct cpumask *cpumask) __ksym __weak;
+u32 bpf_cpumask_first_zero(const struct cpumask *cpumask) __ksym __weak;
+u32 bpf_cpumask_first_and(const struct cpumask *src1,
+			  const struct cpumask *src2) __ksym __weak;
+void bpf_cpumask_set_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak;
+void bpf_cpumask_clear_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak;
+bool bpf_cpumask_test_cpu(u32 cpu, const struct cpumask *cpumask) __ksym __weak;
+bool bpf_cpumask_test_and_set_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak;
+bool bpf_cpumask_test_and_clear_cpu(u32 cpu, struct bpf_cpumask *cpumask) __ksym __weak;
+void bpf_cpumask_setall(struct bpf_cpumask *cpumask) __ksym __weak;
+void bpf_cpumask_clear(struct bpf_cpumask *cpumask) __ksym __weak;
+bool bpf_cpumask_and(struct bpf_cpumask *cpumask,
+		     const struct cpumask *src1,
+		     const struct cpumask *src2) __ksym __weak;
+void bpf_cpumask_or(struct bpf_cpumask *cpumask,
+		    const struct cpumask *src1,
+		    const struct cpumask *src2) __ksym __weak;
+void bpf_cpumask_xor(struct bpf_cpumask *cpumask,
+		     const struct cpumask *src1,
+		     const struct cpumask *src2) __ksym __weak;
+bool bpf_cpumask_equal(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak;
+bool bpf_cpumask_intersects(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak;
+bool bpf_cpumask_subset(const struct cpumask *src1, const struct cpumask *src2) __ksym __weak;
+bool bpf_cpumask_empty(const struct cpumask *cpumask) __ksym __weak;
+bool bpf_cpumask_full(const struct cpumask *cpumask) __ksym __weak;
+void bpf_cpumask_copy(struct bpf_cpumask *dst, const struct cpumask *src) __ksym __weak;
+u32 bpf_cpumask_any_distribute(const struct cpumask *src) __ksym __weak;
+u32 bpf_cpumask_any_and_distribute(const struct cpumask *src1,
+				   const struct cpumask *src2) __ksym __weak;
+u32 bpf_cpumask_weight(const struct cpumask *cpumask) __ksym __weak;
+int bpf_cpumask_populate(struct cpumask *cpumask, void *src, size_t src__sz) __ksym __weak;
+
+void bpf_rcu_read_lock(void) __ksym __weak;
+void bpf_rcu_read_unlock(void) __ksym __weak;
+
+static inline const struct cpumask *cast(struct bpf_cpumask *cpumask)
+{
+	return (const struct cpumask *)cpumask;
+}
+
+static inline struct bpf_cpumask *create_cpumask(void)
+{
+	struct bpf_cpumask *cpumask;
+
+	cpumask = bpf_cpumask_create();
+	if (!cpumask) {
+		err = 1;
+		return NULL;
+	}
+
+	if (!bpf_cpumask_empty(cast(cpumask))) {
+		err = 2;
+		bpf_cpumask_release(cpumask);
+		return NULL;
+	}
+
+	return cpumask;
+}
+
+static inline struct __cpumask_map_value *cpumask_map_value_lookup(void)
+{
+	u32 key = 0;
+
+	return bpf_map_lookup_elem(&__cpumask_map, &key);
+}
+
+static inline int cpumask_map_insert(struct bpf_cpumask *mask)
+{
+	struct __cpumask_map_value local, *v;
+	long status;
+	struct bpf_cpumask *old;
+	u32 key = 0;
+
+	local.cpumask = NULL;
+	status = bpf_map_update_elem(&__cpumask_map, &key, &local, 0);
+	if (status) {
+		bpf_cpumask_release(mask);
+		return status;
+	}
+
+	v = bpf_map_lookup_elem(&__cpumask_map, &key);
+	if (!v) {
+		bpf_cpumask_release(mask);
+		return -ENOENT;
+	}
+
+	old = bpf_kptr_xchg(&v->cpumask, mask);
+	if (old) {
+		bpf_cpumask_release(old);
+		return -EEXIST;
+	}
+
+	return 0;
+}
+
+#endif /* _CPUMASK_COMMON_H */
diff --git a/tools/testing/selftests/bpf/progs/cpumask_failure.c b/tools/testing/selftests/bpf/progs/cpumask_failure.c
new file mode 100644
index 000000000000..8a2fd596c8a3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cpumask_failure.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#include "cpumask_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct kptr_nested_array_2 {
+	struct bpf_cpumask __kptr * mask;
+};
+
+struct kptr_nested_array_1 {
+	/* Make btf_parse_fields() in map_create() return -E2BIG */
+	struct kptr_nested_array_2 d_2[CPUMASK_KPTR_FIELDS_MAX + 1];
+};
+
+struct kptr_nested_array {
+	struct kptr_nested_array_1 d_1;
+};
+
+private(MASK_NESTED) static struct kptr_nested_array global_mask_nested_arr;
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(task_newtask,
+ *         TP_PROTO(struct task_struct *p, u64 clone_flags)
+ */
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Unreleased reference")
+int BPF_PROG(test_alloc_no_release, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	cpumask = create_cpumask();
+	__sink(cpumask);
+
+	/* cpumask is never released. */
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("NULL pointer passed to trusted arg0")
+int BPF_PROG(test_alloc_double_release, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	cpumask = create_cpumask();
+
+	/* cpumask is released twice. */
+	bpf_cpumask_release(cpumask);
+	bpf_cpumask_release(cpumask);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("must be referenced")
+int BPF_PROG(test_acquire_wrong_cpumask, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	/* Can't acquire a non-struct bpf_cpumask. */
+	cpumask = bpf_cpumask_acquire((struct bpf_cpumask *)task->cpus_ptr);
+	__sink(cpumask);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("bpf_cpumask_set_cpu args#1 expected pointer to STRUCT bpf_cpumask")
+int BPF_PROG(test_mutate_cpumask, struct task_struct *task, u64 clone_flags)
+{
+	/* Can't set the CPU of a non-struct bpf_cpumask. */
+	bpf_cpumask_set_cpu(0, (struct bpf_cpumask *)task->cpus_ptr);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Unreleased reference")
+int BPF_PROG(test_insert_remove_no_release, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+	struct __cpumask_map_value *v;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	if (cpumask_map_insert(cpumask))
+		return 0;
+
+	v = cpumask_map_value_lookup();
+	if (!v)
+		return 0;
+
+	cpumask = bpf_kptr_xchg(&v->cpumask, NULL);
+
+	/* cpumask is never released. */
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("NULL pointer passed to trusted arg0")
+int BPF_PROG(test_cpumask_null, struct task_struct *task, u64 clone_flags)
+{
+  /* NULL passed to KF_TRUSTED_ARGS kfunc. */
+	bpf_cpumask_empty(NULL);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("R2 must be a rcu pointer")
+int BPF_PROG(test_global_mask_out_of_rcu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local, *prev;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask, local);
+	if (prev) {
+		bpf_cpumask_release(prev);
+		err = 3;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	local = global_mask;
+	if (!local) {
+		err = 4;
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+
+	bpf_rcu_read_unlock();
+
+	/* RCU region is exited before calling KF_RCU kfunc. */
+
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)local);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("NULL pointer passed to trusted arg1")
+int BPF_PROG(test_global_mask_no_null_check, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local, *prev;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask, local);
+	if (prev) {
+		bpf_cpumask_release(prev);
+		err = 3;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	local = global_mask;
+
+	/* No NULL check is performed on global cpumask kptr. */
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)local);
+
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to helper arg2")
+int BPF_PROG(test_global_mask_rcu_no_null_check, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *prev, *curr;
+
+	curr = bpf_cpumask_create();
+	if (!curr)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask, curr);
+	if (prev)
+		bpf_cpumask_release(prev);
+
+	bpf_rcu_read_lock();
+	curr = global_mask;
+	/* PTR_TO_BTF_ID | PTR_MAYBE_NULL | MEM_RCU passed to bpf_kptr_xchg() */
+	prev = bpf_kptr_xchg(&global_mask, curr);
+	bpf_rcu_read_unlock();
+	if (prev)
+		bpf_cpumask_release(prev);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("has no valid kptr")
+int BPF_PROG(test_invalid_nested_array, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local, *prev;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask_nested_arr.d_1.d_2[CPUMASK_KPTR_FIELDS_MAX].mask, local);
+	if (prev) {
+		bpf_cpumask_release(prev);
+		err = 3;
+		return 0;
+	}
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("type=scalar expected=fp")
+int BPF_PROG(test_populate_invalid_destination, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *invalid = (struct bpf_cpumask *)0x123456;
+	u64 bits;
+	int ret;
+
+	ret = bpf_cpumask_populate((struct cpumask *)invalid, &bits, sizeof(bits));
+	if (!ret)
+		err = 2;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("leads to invalid memory access")
+int BPF_PROG(test_populate_invalid_source, struct task_struct *task, u64 clone_flags)
+{
+	void *garbage = (void *)0x123456;
+	struct bpf_cpumask *local;
+	int ret;
+
+	local = create_cpumask();
+	if (!local) {
+		err = 1;
+		return 0;
+	}
+
+	ret = bpf_cpumask_populate((struct cpumask *)local, garbage, 8);
+	if (!ret)
+		err = 2;
+
+	bpf_cpumask_release(local);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/cpumask_success.c b/tools/testing/selftests/bpf/progs/cpumask_success.c
new file mode 100644
index 000000000000..0e04c31b91c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/cpumask_success.c
@@ -0,0 +1,890 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "cpumask_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+int pid, nr_cpus;
+
+struct kptr_nested {
+	struct bpf_cpumask __kptr * mask;
+};
+
+struct kptr_nested_pair {
+	struct bpf_cpumask __kptr * mask_1;
+	struct bpf_cpumask __kptr * mask_2;
+};
+
+struct kptr_nested_mid {
+	int dummy;
+	struct kptr_nested m;
+};
+
+struct kptr_nested_deep {
+	struct kptr_nested_mid ptrs[2];
+	struct kptr_nested_pair ptr_pairs[3];
+};
+
+struct kptr_nested_deep_array_1_2 {
+	int dummy;
+	struct bpf_cpumask __kptr * mask[CPUMASK_KPTR_FIELDS_MAX];
+};
+
+struct kptr_nested_deep_array_1_1 {
+	int dummy;
+	struct kptr_nested_deep_array_1_2 d_2;
+};
+
+struct kptr_nested_deep_array_1 {
+	long dummy;
+	struct kptr_nested_deep_array_1_1 d_1;
+};
+
+struct kptr_nested_deep_array_2_2 {
+	long dummy[2];
+	struct bpf_cpumask __kptr * mask;
+};
+
+struct kptr_nested_deep_array_2_1 {
+	int dummy;
+	struct kptr_nested_deep_array_2_2 d_2[CPUMASK_KPTR_FIELDS_MAX];
+};
+
+struct kptr_nested_deep_array_2 {
+	long dummy;
+	struct kptr_nested_deep_array_2_1 d_1;
+};
+
+struct kptr_nested_deep_array_3_2 {
+	long dummy[2];
+	struct bpf_cpumask __kptr * mask;
+};
+
+struct kptr_nested_deep_array_3_1 {
+	int dummy;
+	struct kptr_nested_deep_array_3_2 d_2;
+};
+
+struct kptr_nested_deep_array_3 {
+	long dummy;
+	struct kptr_nested_deep_array_3_1 d_1[CPUMASK_KPTR_FIELDS_MAX];
+};
+
+private(MASK) static struct bpf_cpumask __kptr * global_mask_array[2];
+private(MASK) static struct bpf_cpumask __kptr * global_mask_array_l2[2][1];
+private(MASK) static struct bpf_cpumask __kptr * global_mask_array_one[1];
+private(MASK) static struct kptr_nested global_mask_nested[2];
+private(MASK_DEEP) static struct kptr_nested_deep global_mask_nested_deep;
+private(MASK_1) static struct kptr_nested_deep_array_1 global_mask_nested_deep_array_1;
+private(MASK_2) static struct kptr_nested_deep_array_2 global_mask_nested_deep_array_2;
+private(MASK_3) static struct kptr_nested_deep_array_3 global_mask_nested_deep_array_3;
+
+static bool is_test_task(void)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	return pid == cur_pid;
+}
+
+static bool create_cpumask_set(struct bpf_cpumask **out1,
+			       struct bpf_cpumask **out2,
+			       struct bpf_cpumask **out3,
+			       struct bpf_cpumask **out4)
+{
+	struct bpf_cpumask *mask1, *mask2, *mask3, *mask4;
+
+	mask1 = create_cpumask();
+	if (!mask1)
+		return false;
+
+	mask2 = create_cpumask();
+	if (!mask2) {
+		bpf_cpumask_release(mask1);
+		err = 3;
+		return false;
+	}
+
+	mask3 = create_cpumask();
+	if (!mask3) {
+		bpf_cpumask_release(mask1);
+		bpf_cpumask_release(mask2);
+		err = 4;
+		return false;
+	}
+
+	mask4 = create_cpumask();
+	if (!mask4) {
+		bpf_cpumask_release(mask1);
+		bpf_cpumask_release(mask2);
+		bpf_cpumask_release(mask3);
+		err = 5;
+		return false;
+	}
+
+	*out1 = mask1;
+	*out2 = mask2;
+	*out3 = mask3;
+	*out4 = mask4;
+
+	return true;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_alloc_free_cpumask, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	if (!is_test_task())
+		return 0;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	bpf_cpumask_release(cpumask);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_set_clear_cpu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	if (!is_test_task())
+		return 0;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	bpf_cpumask_set_cpu(0, cpumask);
+	if (!bpf_cpumask_test_cpu(0, cast(cpumask))) {
+		err = 3;
+		goto release_exit;
+	}
+
+	bpf_cpumask_clear_cpu(0, cpumask);
+	if (bpf_cpumask_test_cpu(0, cast(cpumask))) {
+		err = 4;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(cpumask);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_setall_clear_cpu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	if (!is_test_task())
+		return 0;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	bpf_cpumask_setall(cpumask);
+	if (!bpf_cpumask_full(cast(cpumask))) {
+		err = 3;
+		goto release_exit;
+	}
+
+	bpf_cpumask_clear(cpumask);
+	if (!bpf_cpumask_empty(cast(cpumask))) {
+		err = 4;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(cpumask);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_first_firstzero_cpu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	if (!is_test_task())
+		return 0;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	if (bpf_cpumask_first(cast(cpumask)) < nr_cpus) {
+		err = 3;
+		goto release_exit;
+	}
+
+	if (bpf_cpumask_first_zero(cast(cpumask)) != 0) {
+		bpf_printk("first zero: %d", bpf_cpumask_first_zero(cast(cpumask)));
+		err = 4;
+		goto release_exit;
+	}
+
+	bpf_cpumask_set_cpu(0, cpumask);
+	if (bpf_cpumask_first(cast(cpumask)) != 0) {
+		err = 5;
+		goto release_exit;
+	}
+
+	if (bpf_cpumask_first_zero(cast(cpumask)) != 1) {
+		err = 6;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(cpumask);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_firstand_nocpu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask1, *mask2;
+	u32 first;
+
+	if (!is_test_task())
+		return 0;
+
+	mask1 = create_cpumask();
+	if (!mask1)
+		return 0;
+
+	mask2 = create_cpumask();
+	if (!mask2)
+		goto release_exit;
+
+	bpf_cpumask_set_cpu(0, mask1);
+	bpf_cpumask_set_cpu(1, mask2);
+
+	first = bpf_cpumask_first_and(cast(mask1), cast(mask2));
+	if (first <= 1)
+		err = 3;
+
+release_exit:
+	if (mask1)
+		bpf_cpumask_release(mask1);
+	if (mask2)
+		bpf_cpumask_release(mask2);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_test_and_set_clear, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	if (!is_test_task())
+		return 0;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	if (bpf_cpumask_test_and_set_cpu(0, cpumask)) {
+		err = 3;
+		goto release_exit;
+	}
+
+	if (!bpf_cpumask_test_and_set_cpu(0, cpumask)) {
+		err = 4;
+		goto release_exit;
+	}
+
+	if (!bpf_cpumask_test_and_clear_cpu(0, cpumask)) {
+		err = 5;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(cpumask);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_and_or_xor, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask1, *mask2, *dst1, *dst2;
+
+	if (!is_test_task())
+		return 0;
+
+	if (!create_cpumask_set(&mask1, &mask2, &dst1, &dst2))
+		return 0;
+
+	bpf_cpumask_set_cpu(0, mask1);
+	bpf_cpumask_set_cpu(1, mask2);
+
+	if (bpf_cpumask_and(dst1, cast(mask1), cast(mask2))) {
+		err = 6;
+		goto release_exit;
+	}
+	if (!bpf_cpumask_empty(cast(dst1))) {
+		err = 7;
+		goto release_exit;
+	}
+
+	bpf_cpumask_or(dst1, cast(mask1), cast(mask2));
+	if (!bpf_cpumask_test_cpu(0, cast(dst1))) {
+		err = 8;
+		goto release_exit;
+	}
+	if (!bpf_cpumask_test_cpu(1, cast(dst1))) {
+		err = 9;
+		goto release_exit;
+	}
+
+	bpf_cpumask_xor(dst2, cast(mask1), cast(mask2));
+	if (!bpf_cpumask_equal(cast(dst1), cast(dst2))) {
+		err = 10;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(mask1);
+	bpf_cpumask_release(mask2);
+	bpf_cpumask_release(dst1);
+	bpf_cpumask_release(dst2);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_intersects_subset, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask1, *mask2, *dst1, *dst2;
+
+	if (!is_test_task())
+		return 0;
+
+	if (!create_cpumask_set(&mask1, &mask2, &dst1, &dst2))
+		return 0;
+
+	bpf_cpumask_set_cpu(0, mask1);
+	bpf_cpumask_set_cpu(1, mask2);
+	if (bpf_cpumask_intersects(cast(mask1), cast(mask2))) {
+		err = 6;
+		goto release_exit;
+	}
+
+	bpf_cpumask_or(dst1, cast(mask1), cast(mask2));
+	if (!bpf_cpumask_subset(cast(mask1), cast(dst1))) {
+		err = 7;
+		goto release_exit;
+	}
+
+	if (!bpf_cpumask_subset(cast(mask2), cast(dst1))) {
+		err = 8;
+		goto release_exit;
+	}
+
+	if (bpf_cpumask_subset(cast(dst1), cast(mask1))) {
+		err = 9;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(mask1);
+	bpf_cpumask_release(mask2);
+	bpf_cpumask_release(dst1);
+	bpf_cpumask_release(dst2);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_copy_any_anyand, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask1, *mask2, *dst1, *dst2;
+	int cpu;
+
+	if (!is_test_task())
+		return 0;
+
+	if (!create_cpumask_set(&mask1, &mask2, &dst1, &dst2))
+		return 0;
+
+	bpf_cpumask_set_cpu(0, mask1);
+	bpf_cpumask_set_cpu(1, mask2);
+	bpf_cpumask_or(dst1, cast(mask1), cast(mask2));
+
+	cpu = bpf_cpumask_any_distribute(cast(mask1));
+	if (cpu != 0) {
+		err = 6;
+		goto release_exit;
+	}
+
+	cpu = bpf_cpumask_any_distribute(cast(dst2));
+	if (cpu < nr_cpus) {
+		err = 7;
+		goto release_exit;
+	}
+
+	bpf_cpumask_copy(dst2, cast(dst1));
+	if (!bpf_cpumask_equal(cast(dst1), cast(dst2))) {
+		err = 8;
+		goto release_exit;
+	}
+
+	cpu = bpf_cpumask_any_distribute(cast(dst2));
+	if (cpu > 1) {
+		err = 9;
+		goto release_exit;
+	}
+
+	cpu = bpf_cpumask_any_and_distribute(cast(mask1), cast(mask2));
+	if (cpu < nr_cpus) {
+		err = 10;
+		goto release_exit;
+	}
+
+release_exit:
+	bpf_cpumask_release(mask1);
+	bpf_cpumask_release(mask2);
+	bpf_cpumask_release(dst1);
+	bpf_cpumask_release(dst2);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_insert_leave, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	if (cpumask_map_insert(cpumask))
+		err = 3;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_insert_remove_release, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *cpumask;
+	struct __cpumask_map_value *v;
+
+	cpumask = create_cpumask();
+	if (!cpumask)
+		return 0;
+
+	if (cpumask_map_insert(cpumask)) {
+		err = 3;
+		return 0;
+	}
+
+	v = cpumask_map_value_lookup();
+	if (!v) {
+		err = 4;
+		return 0;
+	}
+
+	cpumask = bpf_kptr_xchg(&v->cpumask, NULL);
+	if (cpumask)
+		bpf_cpumask_release(cpumask);
+	else
+		err = 5;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_rcu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local, *prev;
+
+	if (!is_test_task())
+		return 0;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask, local);
+	if (prev) {
+		bpf_cpumask_release(prev);
+		err = 3;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	local = global_mask;
+	if (!local) {
+		err = 4;
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)local);
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_array_one_rcu, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local, *prev;
+
+	if (!is_test_task())
+		return 0;
+
+	/* Kptr arrays with one element are special cased, being treated
+	 * just like a single pointer.
+	 */
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	prev = bpf_kptr_xchg(&global_mask_array_one[0], local);
+	if (prev) {
+		bpf_cpumask_release(prev);
+		err = 3;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	local = global_mask_array_one[0];
+	if (!local) {
+		err = 4;
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+static int _global_mask_array_rcu(struct bpf_cpumask **mask0,
+				  struct bpf_cpumask **mask1)
+{
+	struct bpf_cpumask *local;
+
+	if (!is_test_task())
+		return 0;
+
+	/* Check if two kptrs in the array work and independently */
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	bpf_rcu_read_lock();
+
+	local = bpf_kptr_xchg(mask0, local);
+	if (local) {
+		err = 1;
+		goto err_exit;
+	}
+
+	/* [<mask 0>, *] */
+	if (!*mask0) {
+		err = 2;
+		goto err_exit;
+	}
+
+	if (!mask1)
+		goto err_exit;
+
+	/* [*, NULL] */
+	if (*mask1) {
+		err = 3;
+		goto err_exit;
+	}
+
+	local = create_cpumask();
+	if (!local) {
+		err = 9;
+		goto err_exit;
+	}
+
+	local = bpf_kptr_xchg(mask1, local);
+	if (local) {
+		err = 10;
+		goto err_exit;
+	}
+
+	/* [<mask 0>, <mask 1>] */
+	if (!*mask0 || !*mask1 || *mask0 == *mask1) {
+		err = 11;
+		goto err_exit;
+	}
+
+err_exit:
+	if (local)
+		bpf_cpumask_release(local);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_array_rcu, struct task_struct *task, u64 clone_flags)
+{
+	return _global_mask_array_rcu(&global_mask_array[0], &global_mask_array[1]);
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_array_l2_rcu, struct task_struct *task, u64 clone_flags)
+{
+	return _global_mask_array_rcu(&global_mask_array_l2[0][0], &global_mask_array_l2[1][0]);
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_nested_rcu, struct task_struct *task, u64 clone_flags)
+{
+	return _global_mask_array_rcu(&global_mask_nested[0].mask, &global_mask_nested[1].mask);
+}
+
+/* Ensure that the field->offset has been correctly advanced from one
+ * nested struct or array sub-tree to another. In the case of
+ * kptr_nested_deep, it comprises two sub-trees: ktpr_1 and kptr_2.  By
+ * calling bpf_kptr_xchg() on every single kptr in both nested sub-trees,
+ * the verifier should reject the program if the field->offset of any kptr
+ * is incorrect.
+ *
+ * For instance, if we have 10 kptrs in a nested struct and a program that
+ * accesses each kptr individually with bpf_kptr_xchg(), the compiler
+ * should emit instructions to access 10 different offsets if it works
+ * correctly. If the field->offset values of any pair of them are
+ * incorrectly the same, the number of unique offsets in btf_record for
+ * this nested struct should be less than 10. The verifier should fail to
+ * discover some of the offsets emitted by the compiler.
+ *
+ * Even if the field->offset values of kptrs are not duplicated, the
+ * verifier should fail to find a btf_field for the instruction accessing a
+ * kptr if the corresponding field->offset is pointing to a random
+ * incorrect offset.
+ */
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_nested_deep_rcu, struct task_struct *task, u64 clone_flags)
+{
+	int r, i;
+
+	r = _global_mask_array_rcu(&global_mask_nested_deep.ptrs[0].m.mask,
+				   &global_mask_nested_deep.ptrs[1].m.mask);
+	if (r)
+		return r;
+
+	for (i = 0; i < 3; i++) {
+		r = _global_mask_array_rcu(&global_mask_nested_deep.ptr_pairs[i].mask_1,
+					   &global_mask_nested_deep.ptr_pairs[i].mask_2);
+		if (r)
+			return r;
+	}
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_global_mask_nested_deep_array_rcu, struct task_struct *task, u64 clone_flags)
+{
+	int i;
+
+	for (i = 0; i < CPUMASK_KPTR_FIELDS_MAX; i++)
+		_global_mask_array_rcu(&global_mask_nested_deep_array_1.d_1.d_2.mask[i], NULL);
+
+	for (i = 0; i < CPUMASK_KPTR_FIELDS_MAX; i++)
+		_global_mask_array_rcu(&global_mask_nested_deep_array_2.d_1.d_2[i].mask, NULL);
+
+	for (i = 0; i < CPUMASK_KPTR_FIELDS_MAX; i++)
+		_global_mask_array_rcu(&global_mask_nested_deep_array_3.d_1[i].d_2.mask, NULL);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_cpumask_weight, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local;
+
+	if (!is_test_task())
+		return 0;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	if (bpf_cpumask_weight(cast(local)) != 0) {
+		err = 3;
+		goto out;
+	}
+
+	bpf_cpumask_set_cpu(0, local);
+	if (bpf_cpumask_weight(cast(local)) != 1) {
+		err = 4;
+		goto out;
+	}
+
+	/*
+	 * Make sure that adding additional CPUs changes the weight. Test to
+	 * see whether the CPU was set to account for running on UP machines.
+	 */
+	bpf_cpumask_set_cpu(1, local);
+	if (bpf_cpumask_test_cpu(1, cast(local)) && bpf_cpumask_weight(cast(local)) != 2) {
+		err = 5;
+		goto out;
+	}
+
+	bpf_cpumask_clear(local);
+	if (bpf_cpumask_weight(cast(local)) != 0) {
+		err = 6;
+		goto out;
+	}
+out:
+	bpf_cpumask_release(local);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_refcount_null_tracking, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask1, *mask2;
+
+	mask1 = bpf_cpumask_create();
+	mask2 = bpf_cpumask_create();
+
+	if (!mask1 || !mask2)
+		goto free_masks_return;
+
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)mask1);
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)mask2);
+
+free_masks_return:
+	if (mask1)
+		bpf_cpumask_release(mask1);
+	if (mask2)
+		bpf_cpumask_release(mask2);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_populate_reject_small_mask, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *local;
+	u8 toofewbits;
+	int ret;
+
+	if (!is_test_task())
+		return 0;
+
+	local = create_cpumask();
+	if (!local)
+		return 0;
+
+	/* The kfunc should prevent this operation */
+	ret = bpf_cpumask_populate((struct cpumask *)local, &toofewbits, sizeof(toofewbits));
+	if (ret != -EACCES)
+		err = 2;
+
+	bpf_cpumask_release(local);
+
+	return 0;
+}
+
+/* Mask is guaranteed to be large enough for bpf_cpumask_t. */
+#define CPUMASK_TEST_MASKLEN (sizeof(cpumask_t))
+
+/* Add an extra word for the test_populate_reject_unaligned test. */
+u64 bits[CPUMASK_TEST_MASKLEN / 8 + 1];
+extern bool CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS __kconfig __weak;
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_populate_reject_unaligned, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask;
+	char *src;
+	int ret;
+
+	if (!is_test_task())
+		return 0;
+
+	/* Skip if unaligned accesses are fine for this arch.  */
+	if (CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+		return 0;
+
+	mask = bpf_cpumask_create();
+	if (!mask) {
+		err = 1;
+		return 0;
+	}
+
+	/* Misalign the source array by a byte. */
+	src = &((char *)bits)[1];
+
+	ret = bpf_cpumask_populate((struct cpumask *)mask, src, CPUMASK_TEST_MASKLEN);
+	if (ret != -EINVAL)
+		err = 2;
+
+	bpf_cpumask_release(mask);
+
+	return 0;
+}
+
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_populate, struct task_struct *task, u64 clone_flags)
+{
+	struct bpf_cpumask *mask;
+	bool bit;
+	int ret;
+	int i;
+
+	if (!is_test_task())
+		return 0;
+
+	/* Set only odd bits. */
+	__builtin_memset(bits, 0xaa, CPUMASK_TEST_MASKLEN);
+
+	mask = bpf_cpumask_create();
+	if (!mask) {
+		err = 1;
+		return 0;
+	}
+
+	/* Pass the entire bits array, the kfunc will only copy the valid bits. */
+	ret = bpf_cpumask_populate((struct cpumask *)mask, bits, CPUMASK_TEST_MASKLEN);
+	if (ret) {
+		err = 2;
+		goto out;
+	}
+
+	/*
+	 * Test is there to appease the verifier. We cannot directly
+	 * access NR_CPUS, the upper bound for nr_cpus, so we infer
+	 * it from the size of cpumask_t.
+	 */
+	if (nr_cpus < 0 || nr_cpus >= CPUMASK_TEST_MASKLEN * 8) {
+		err = 3;
+		goto out;
+	}
+
+	bpf_for(i, 0, nr_cpus) {
+		/* Odd-numbered bits should be set, even ones unset. */
+		bit = bpf_cpumask_test_cpu(i, (const struct cpumask *)mask);
+		if (bit == (i % 2 != 0))
+			continue;
+
+		err = 4;
+		break;
+	}
+
+out:
+	bpf_cpumask_release(mask);
+
+	return 0;
+}
+
+#undef CPUMASK_TEST_MASKLEN
diff --git a/tools/testing/selftests/bpf/progs/crypto_basic.c b/tools/testing/selftests/bpf/progs/crypto_basic.c
new file mode 100644
index 000000000000..8cf7168b42d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/crypto_basic.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+#include "crypto_common.h"
+
+int status;
+SEC("syscall")
+int crypto_release(void *ctx)
+{
+	struct bpf_crypto_params params = {
+		.type = "skcipher",
+		.algo = "ecb(aes)",
+		.key_len = 16,
+	};
+
+	struct bpf_crypto_ctx *cctx;
+	int err = 0;
+
+	status = 0;
+
+	cctx = bpf_crypto_ctx_create(&params, sizeof(params), &err);
+
+	if (!cctx) {
+		status = err;
+		return 0;
+	}
+
+	bpf_crypto_ctx_release(cctx);
+
+	return 0;
+}
+
+SEC("syscall")
+__failure __msg("Unreleased reference")
+int crypto_acquire(void *ctx)
+{
+	struct bpf_crypto_params params = {
+		.type = "skcipher",
+		.algo = "ecb(aes)",
+		.key_len = 16,
+	};
+	struct bpf_crypto_ctx *cctx;
+	int err = 0;
+
+	status = 0;
+
+	cctx = bpf_crypto_ctx_create(&params, sizeof(params), &err);
+
+	if (!cctx) {
+		status = err;
+		return 0;
+	}
+
+	cctx = bpf_crypto_ctx_acquire(cctx);
+	if (!cctx)
+		return -EINVAL;
+
+	bpf_crypto_ctx_release(cctx);
+
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/crypto_bench.c b/tools/testing/selftests/bpf/progs/crypto_bench.c
new file mode 100644
index 000000000000..4ac956b26240
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/crypto_bench.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+#include "crypto_common.h"
+
+const volatile unsigned int len = 16;
+char cipher[128] = {};
+u32 key_len, authsize;
+char dst[256] = {};
+u8 key[256] = {};
+long hits = 0;
+int status;
+
+SEC("syscall")
+int crypto_setup(void *args)
+{
+	struct bpf_crypto_ctx *cctx;
+	struct bpf_crypto_params params = {
+		.type = "skcipher",
+		.key_len = key_len,
+		.authsize = authsize,
+	};
+	int err = 0;
+
+	status = 0;
+
+	if (!cipher[0] || !key_len || key_len > 256) {
+		status = -EINVAL;
+		return 0;
+	}
+
+	__builtin_memcpy(&params.algo, cipher, sizeof(cipher));
+	__builtin_memcpy(&params.key, key, sizeof(key));
+	cctx = bpf_crypto_ctx_create(&params, sizeof(params), &err);
+
+	if (!cctx) {
+		status = err;
+		return 0;
+	}
+
+	err = crypto_ctx_insert(cctx);
+	if (err && err != -EEXIST)
+		status = err;
+
+	return 0;
+}
+
+SEC("tc")
+int crypto_encrypt(struct __sk_buff *skb)
+{
+	struct __crypto_ctx_value *v;
+	struct bpf_crypto_ctx *ctx;
+	struct bpf_dynptr psrc, pdst;
+
+	v = crypto_ctx_value_lookup();
+	if (!v) {
+		status = -ENOENT;
+		return 0;
+	}
+
+	ctx = v->ctx;
+	if (!ctx) {
+		status = -ENOENT;
+		return 0;
+	}
+
+	bpf_dynptr_from_skb(skb, 0, &psrc);
+	bpf_dynptr_from_mem(dst, len, 0, &pdst);
+
+	status = bpf_crypto_encrypt(ctx, &psrc, &pdst, NULL);
+	__sync_add_and_fetch(&hits, 1);
+
+	return 0;
+}
+
+SEC("tc")
+int crypto_decrypt(struct __sk_buff *skb)
+{
+	struct bpf_dynptr psrc, pdst;
+	struct __crypto_ctx_value *v;
+	struct bpf_crypto_ctx *ctx;
+
+	v = crypto_ctx_value_lookup();
+	if (!v)
+		return -ENOENT;
+
+	ctx = v->ctx;
+	if (!ctx)
+		return -ENOENT;
+
+	bpf_dynptr_from_skb(skb, 0, &psrc);
+	bpf_dynptr_from_mem(dst, len, 0, &pdst);
+
+	status = bpf_crypto_decrypt(ctx, &psrc, &pdst, NULL);
+	__sync_add_and_fetch(&hits, 1);
+
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/crypto_common.h b/tools/testing/selftests/bpf/progs/crypto_common.h
new file mode 100644
index 000000000000..57dd7a68a8c3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/crypto_common.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _CRYPTO_COMMON_H
+#define _CRYPTO_COMMON_H
+
+#include "errno.h"
+#include <stdbool.h>
+
+struct bpf_crypto_ctx *bpf_crypto_ctx_create(const struct bpf_crypto_params *params,
+					     u32 params__sz, int *err) __ksym;
+struct bpf_crypto_ctx *bpf_crypto_ctx_acquire(struct bpf_crypto_ctx *ctx) __ksym;
+void bpf_crypto_ctx_release(struct bpf_crypto_ctx *ctx) __ksym;
+int bpf_crypto_encrypt(struct bpf_crypto_ctx *ctx, const struct bpf_dynptr *src,
+		       const struct bpf_dynptr *dst, const struct bpf_dynptr *iv) __ksym;
+int bpf_crypto_decrypt(struct bpf_crypto_ctx *ctx, const struct bpf_dynptr *src,
+		       const struct bpf_dynptr *dst, const struct bpf_dynptr *iv) __ksym;
+
+struct __crypto_ctx_value {
+	struct bpf_crypto_ctx __kptr * ctx;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct __crypto_ctx_value);
+	__uint(max_entries, 1);
+} __crypto_ctx_map SEC(".maps");
+
+static inline struct __crypto_ctx_value *crypto_ctx_value_lookup(void)
+{
+	u32 key = 0;
+
+	return bpf_map_lookup_elem(&__crypto_ctx_map, &key);
+}
+
+static inline int crypto_ctx_insert(struct bpf_crypto_ctx *ctx)
+{
+	struct __crypto_ctx_value local, *v;
+	struct bpf_crypto_ctx *old;
+	u32 key = 0;
+	int err;
+
+	local.ctx = NULL;
+	err = bpf_map_update_elem(&__crypto_ctx_map, &key, &local, 0);
+	if (err) {
+		bpf_crypto_ctx_release(ctx);
+		return err;
+	}
+
+	v = bpf_map_lookup_elem(&__crypto_ctx_map, &key);
+	if (!v) {
+		bpf_crypto_ctx_release(ctx);
+		return -ENOENT;
+	}
+
+	old = bpf_kptr_xchg(&v->ctx, ctx);
+	if (old) {
+		bpf_crypto_ctx_release(old);
+		return -EEXIST;
+	}
+
+	return 0;
+}
+
+#endif /* _CRYPTO_COMMON_H */
diff --git a/tools/testing/selftests/bpf/progs/crypto_sanity.c b/tools/testing/selftests/bpf/progs/crypto_sanity.c
new file mode 100644
index 000000000000..dfd8a258f14a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/crypto_sanity.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+#include "crypto_common.h"
+
+unsigned char key[256] = {};
+u16 udp_test_port = 7777;
+u32 authsize, key_len;
+char algo[128] = {};
+char dst[16] = {}, dst_bad[8] = {};
+int status;
+
+static int skb_dynptr_validate(struct __sk_buff *skb, struct bpf_dynptr *psrc)
+{
+	struct ipv6hdr ip6h;
+	struct udphdr udph;
+	u32 offset;
+
+	if (skb->protocol != __bpf_constant_htons(ETH_P_IPV6))
+		return -1;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &ip6h, sizeof(ip6h)))
+		return -1;
+
+	if (ip6h.nexthdr != IPPROTO_UDP)
+		return -1;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN + sizeof(ip6h), &udph, sizeof(udph)))
+		return -1;
+
+	if (udph.dest != __bpf_htons(udp_test_port))
+		return -1;
+
+	offset = ETH_HLEN + sizeof(ip6h) + sizeof(udph);
+	if (skb->len < offset + 16)
+		return -1;
+
+	/* let's make sure that 16 bytes of payload are in the linear part of skb */
+	bpf_skb_pull_data(skb, offset + 16);
+	bpf_dynptr_from_skb(skb, 0, psrc);
+	bpf_dynptr_adjust(psrc, offset, offset + 16);
+
+	return 0;
+}
+
+SEC("syscall")
+int skb_crypto_setup(void *ctx)
+{
+	struct bpf_crypto_params params = {
+		.type = "skcipher",
+		.key_len = key_len,
+		.authsize = authsize,
+	};
+	struct bpf_crypto_ctx *cctx;
+	int err;
+
+	status = 0;
+	if (key_len > 256) {
+		status = -EINVAL;
+		return 0;
+	}
+
+	__builtin_memcpy(&params.algo, algo, sizeof(algo));
+	__builtin_memcpy(&params.key, key, sizeof(key));
+
+	cctx = bpf_crypto_ctx_create(&params, sizeof(params), &err);
+	if (!cctx) {
+		status = err;
+		return 0;
+	}
+
+	err = crypto_ctx_insert(cctx);
+	if (err && err != -EEXIST)
+		status = err;
+	return 0;
+}
+
+SEC("tc")
+int decrypt_sanity(struct __sk_buff *skb)
+{
+	struct __crypto_ctx_value *v;
+	struct bpf_crypto_ctx *ctx;
+	struct bpf_dynptr psrc, pdst;
+	int err;
+
+	status = 0;
+	err = skb_dynptr_validate(skb, &psrc);
+	if (err < 0) {
+		status = err;
+		return TC_ACT_SHOT;
+	}
+
+	v = crypto_ctx_value_lookup();
+	if (!v) {
+		status = -ENOENT;
+		return TC_ACT_SHOT;
+	}
+
+	ctx = v->ctx;
+	if (!ctx) {
+		status = -ENOENT;
+		return TC_ACT_SHOT;
+	}
+
+	/* Check also bad case where the dst buffer is smaller than the
+	 * skb's linear section.
+	 */
+	bpf_dynptr_from_mem(dst_bad, sizeof(dst_bad), 0, &pdst);
+	status = bpf_crypto_decrypt(ctx, &psrc, &pdst, NULL);
+	if (!status)
+		status = -EIO;
+	if (status != -EINVAL)
+		goto err;
+
+	/* dst is a global variable to make testing part easier to check.
+	 * In real production code, a percpu map should be used to store
+	 * the result.
+	 */
+	bpf_dynptr_from_mem(dst, sizeof(dst), 0, &pdst);
+	status = bpf_crypto_decrypt(ctx, &psrc, &pdst, NULL);
+err:
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int encrypt_sanity(struct __sk_buff *skb)
+{
+	struct __crypto_ctx_value *v;
+	struct bpf_crypto_ctx *ctx;
+	struct bpf_dynptr psrc, pdst;
+	int err;
+
+	status = 0;
+	err = skb_dynptr_validate(skb, &psrc);
+	if (err < 0) {
+		status = err;
+		return TC_ACT_SHOT;
+	}
+
+	v = crypto_ctx_value_lookup();
+	if (!v) {
+		status = -ENOENT;
+		return TC_ACT_SHOT;
+	}
+
+	ctx = v->ctx;
+	if (!ctx) {
+		status = -ENOENT;
+		return TC_ACT_SHOT;
+	}
+
+	/* Check also bad case where the dst buffer is smaller than the
+	 * skb's linear section.
+	 */
+	bpf_dynptr_from_mem(dst_bad, sizeof(dst_bad), 0, &pdst);
+	status = bpf_crypto_encrypt(ctx, &psrc, &pdst, NULL);
+	if (!status)
+		status = -EIO;
+	if (status != -EINVAL)
+		goto err;
+
+	/* dst is a global variable to make testing part easier to check.
+	 * In real production code, a percpu map should be used to store
+	 * the result.
+	 */
+	bpf_dynptr_from_mem(dst, sizeof(dst), 0, &pdst);
+	status = bpf_crypto_encrypt(ctx, &psrc, &pdst, NULL);
+err:
+	return TC_ACT_SHOT;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/csum_diff_test.c b/tools/testing/selftests/bpf/progs/csum_diff_test.c
new file mode 100644
index 000000000000..9438f1773a58
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/csum_diff_test.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates */
+#include <linux/types.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define BUFF_SZ 512
+
+/* Will be updated by benchmark before program loading */
+char to_buff[BUFF_SZ];
+const volatile unsigned int to_buff_len = 0;
+char from_buff[BUFF_SZ];
+const volatile unsigned int from_buff_len = 0;
+unsigned short seed = 0;
+
+short result;
+
+char _license[] SEC("license") = "GPL";
+
+SEC("tc")
+int compute_checksum(void *ctx)
+{
+	int to_len_half = to_buff_len / 2;
+	int from_len_half = from_buff_len / 2;
+	short result2;
+
+	/* Calculate checksum in one go */
+	result2 = bpf_csum_diff((void *)from_buff, from_buff_len,
+				(void *)to_buff, to_buff_len, seed);
+
+	/* Calculate checksum by concatenating bpf_csum_diff()*/
+	result = bpf_csum_diff((void *)from_buff, from_buff_len - from_len_half,
+			       (void *)to_buff, to_buff_len - to_len_half, seed);
+
+	result = bpf_csum_diff((void *)from_buff + (from_buff_len - from_len_half), from_len_half,
+			       (void *)to_buff + (to_buff_len - to_len_half), to_len_half, result);
+
+	result = (result == result2) ? result : 0;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/decap_sanity.c b/tools/testing/selftests/bpf/progs/decap_sanity.c
new file mode 100644
index 000000000000..bd3c657c58a7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/decap_sanity.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define UDP_TEST_PORT 7777
+
+void *bpf_cast_to_kern_ctx(void *) __ksym;
+bool init_csum_partial = false;
+bool final_csum_none = false;
+bool broken_csum_start = false;
+
+static unsigned int skb_headlen(const struct sk_buff *skb)
+{
+	return skb->len - skb->data_len;
+}
+
+static unsigned int skb_headroom(const struct sk_buff *skb)
+{
+	return skb->data - skb->head;
+}
+
+static int skb_checksum_start_offset(const struct sk_buff *skb)
+{
+	return skb->csum_start - skb_headroom(skb);
+}
+
+SEC("tc")
+int decap_sanity(struct __sk_buff *skb)
+{
+	struct sk_buff *kskb;
+	struct ipv6hdr ip6h;
+	struct udphdr udph;
+	int err;
+
+	if (skb->protocol != __bpf_constant_htons(ETH_P_IPV6))
+		return TC_ACT_SHOT;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &ip6h, sizeof(ip6h)))
+		return TC_ACT_SHOT;
+
+	if (ip6h.nexthdr != IPPROTO_UDP)
+		return TC_ACT_SHOT;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN + sizeof(ip6h), &udph, sizeof(udph)))
+		return TC_ACT_SHOT;
+
+	if (udph.dest != __bpf_constant_htons(UDP_TEST_PORT))
+		return TC_ACT_SHOT;
+
+	kskb = bpf_cast_to_kern_ctx(skb);
+	init_csum_partial = (kskb->ip_summed == CHECKSUM_PARTIAL);
+	err = bpf_skb_adjust_room(skb, -(s32)(ETH_HLEN + sizeof(ip6h) + sizeof(udph)),
+				  1, BPF_F_ADJ_ROOM_FIXED_GSO);
+	if (err)
+		return TC_ACT_SHOT;
+	final_csum_none = (kskb->ip_summed == CHECKSUM_NONE);
+	if (kskb->ip_summed == CHECKSUM_PARTIAL &&
+	    (unsigned int)skb_checksum_start_offset(kskb) >= skb_headlen(kskb))
+		broken_csum_start = true;
+
+	return TC_ACT_SHOT;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/dev_cgroup.c b/tools/testing/selftests/bpf/progs/dev_cgroup.c
new file mode 100644
index 000000000000..c1dfbd2b56fc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dev_cgroup.c
@@ -0,0 +1,59 @@
+/* Copyright (c) 2017 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+
+#include <linux/bpf.h>
+#include <linux/version.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("cgroup/dev")
+int bpf_prog1(struct bpf_cgroup_dev_ctx *ctx)
+{
+	short type = ctx->access_type & 0xFFFF;
+#ifdef DEBUG
+	short access = ctx->access_type >> 16;
+	char fmt[] = "  %d:%d    \n";
+
+	switch (type) {
+	case BPF_DEVCG_DEV_BLOCK:
+		fmt[0] = 'b';
+		break;
+	case BPF_DEVCG_DEV_CHAR:
+		fmt[0] = 'c';
+		break;
+	default:
+		fmt[0] = '?';
+		break;
+	}
+
+	if (access & BPF_DEVCG_ACC_READ)
+		fmt[8] = 'r';
+
+	if (access & BPF_DEVCG_ACC_WRITE)
+		fmt[9] = 'w';
+
+	if (access & BPF_DEVCG_ACC_MKNOD)
+		fmt[10] = 'm';
+
+	bpf_trace_printk(fmt, sizeof(fmt), ctx->major, ctx->minor);
+#endif
+
+	/* Allow access to /dev/null and /dev/urandom.
+	 * Forbid everything else.
+	 */
+	if (ctx->major != 1 || type != BPF_DEVCG_DEV_CHAR)
+		return 0;
+
+	switch (ctx->minor) {
+	case 3: /* 1:3 /dev/null */
+	case 9: /* 1:9 /dev/urandom */
+		return 1;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/dmabuf_iter.c b/tools/testing/selftests/bpf/progs/dmabuf_iter.c
new file mode 100644
index 000000000000..13cdb11fdeb2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dmabuf_iter.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Google LLC */
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+
+/* From uapi/linux/dma-buf.h */
+#define DMA_BUF_NAME_LEN 32
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(key_size, DMA_BUF_NAME_LEN);
+	__type(value, bool);
+	__uint(max_entries, 5);
+} testbuf_hash SEC(".maps");
+
+/*
+ * Fields output by this iterator are delimited by newlines. Convert any
+ * newlines in user-provided printed strings to spaces.
+ */
+static void sanitize_string(char *src, size_t size)
+{
+	for (char *c = src; (size_t)(c - src) < size && *c; ++c)
+		if (*c == '\n')
+			*c = ' ';
+}
+
+SEC("iter/dmabuf")
+int dmabuf_collector(struct bpf_iter__dmabuf *ctx)
+{
+	const struct dma_buf *dmabuf = ctx->dmabuf;
+	struct seq_file *seq = ctx->meta->seq;
+	unsigned long inode = 0;
+	size_t size;
+	const char *pname, *exporter;
+	char name[DMA_BUF_NAME_LEN] = {'\0'};
+
+	if (!dmabuf)
+		return 0;
+
+	if (BPF_CORE_READ_INTO(&inode, dmabuf, file, f_inode, i_ino) ||
+	    bpf_core_read(&size, sizeof(size), &dmabuf->size) ||
+	    bpf_core_read(&pname, sizeof(pname), &dmabuf->name) ||
+	    bpf_core_read(&exporter, sizeof(exporter), &dmabuf->exp_name))
+		return 1;
+
+	/* Buffers are not required to be named */
+	if (pname) {
+		if (bpf_probe_read_kernel(name, sizeof(name), pname))
+			return 1;
+
+		/* Name strings can be provided by userspace */
+		sanitize_string(name, sizeof(name));
+	}
+
+	BPF_SEQ_PRINTF(seq, "%lu\n%llu\n%s\n%s\n", inode, size, name, exporter);
+	return 0;
+}
+
+SEC("syscall")
+int iter_dmabuf_for_each(const void *ctx)
+{
+	struct dma_buf *d;
+
+	bpf_for_each(dmabuf, d) {
+		char name[DMA_BUF_NAME_LEN];
+		const char *pname;
+		bool *found;
+		long len;
+		int i;
+
+		if (bpf_core_read(&pname, sizeof(pname), &d->name))
+			return 1;
+
+		/* Buffers are not required to be named */
+		if (!pname)
+			continue;
+
+		len = bpf_probe_read_kernel_str(name, sizeof(name), pname);
+		if (len < 0)
+			return 1;
+
+		/*
+		 * The entire name buffer is used as a map key.
+		 * Zeroize any uninitialized trailing bytes after the NUL.
+		 */
+		bpf_for(i, len, DMA_BUF_NAME_LEN)
+			name[i] = 0;
+
+		found = bpf_map_lookup_elem(&testbuf_hash, name);
+		if (found) {
+			bool t = true;
+
+			bpf_map_update_elem(&testbuf_hash, name, &t, BPF_EXIST);
+		}
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c b/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c
new file mode 100644
index 000000000000..0bf969a0b5ed
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dummy_st_ops_fail.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops.s/test_2")
+__failure __msg("attach to unsupported member test_2 of struct bpf_dummy_ops")
+int BPF_PROG(test_unsupported_field_sleepable,
+	     struct bpf_dummy_ops_state *state, int a1, unsigned short a2,
+	     char a3, unsigned long a4)
+{
+	/* Tries to mark an unsleepable field in struct bpf_dummy_ops as sleepable. */
+	return 0;
+}
+
+SEC(".struct_ops")
+struct bpf_dummy_ops dummy_1 = {
+	.test_1 = NULL,
+	.test_2 = (void *)test_unsupported_field_sleepable,
+	.test_sleepable = (void *)NULL,
+};
diff --git a/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c
new file mode 100644
index 000000000000..ec0c595d47af
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dummy_st_ops_success.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1, struct bpf_dummy_ops_state *state)
+{
+	int ret;
+
+	/* Check that 'state' nullable status is detected correctly.
+	 * If 'state' argument would be assumed non-null by verifier
+	 * the code below would be deleted as dead (which it shouldn't).
+	 * Hide it from the compiler behind 'asm' block to avoid
+	 * unnecessary optimizations.
+	 */
+	asm volatile (
+		"if %[state] != 0 goto +2;"
+		"r0 = 0xf2f3f4f5;"
+		"exit;"
+	::[state]"p"(state));
+
+	ret = state->val;
+	state->val = 0x5a;
+	return ret;
+}
+
+__u64 test_2_args[5];
+
+SEC("struct_ops/test_2")
+int BPF_PROG(test_2, struct bpf_dummy_ops_state *state, int a1, unsigned short a2,
+	     char a3, unsigned long a4)
+{
+	test_2_args[0] = state->val;
+	test_2_args[1] = a1;
+	test_2_args[2] = a2;
+	test_2_args[3] = a3;
+	test_2_args[4] = a4;
+	return 0;
+}
+
+SEC("struct_ops.s/test_sleepable")
+int BPF_PROG(test_sleepable, struct bpf_dummy_ops_state *state)
+{
+	return 0;
+}
+
+SEC(".struct_ops")
+struct bpf_dummy_ops dummy_1 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2,
+	.test_sleepable = (void *)test_sleepable,
+};
diff --git a/tools/testing/selftests/bpf/progs/dynptr_fail.c b/tools/testing/selftests/bpf/progs/dynptr_fail.c
new file mode 100644
index 000000000000..dda6a8dada82
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dynptr_fail.c
@@ -0,0 +1,1995 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include <errno.h>
+#include <string.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <linux/if_ether.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct test_info {
+	int x;
+	struct bpf_dynptr ptr;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct bpf_dynptr);
+} array_map1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct test_info);
+} array_map2 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} array_map3 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} array_map4 SEC(".maps");
+
+struct sample {
+	int pid;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} ringbuf SEC(".maps");
+
+int err, val;
+
+static int get_map_val_dynptr(struct bpf_dynptr *ptr)
+{
+	__u32 key = 0, *map_val;
+
+	bpf_map_update_elem(&array_map3, &key, &val, 0);
+
+	map_val = bpf_map_lookup_elem(&array_map3, &key);
+	if (!map_val)
+		return -ENOENT;
+
+	bpf_dynptr_from_mem(map_val, sizeof(*map_val), 0, ptr);
+
+	return 0;
+}
+
+/* Every bpf_ringbuf_reserve_dynptr call must have a corresponding
+ * bpf_ringbuf_submit/discard_dynptr call
+ */
+SEC("?raw_tp")
+__failure __msg("Unreleased reference id=2")
+int ringbuf_missing_release1(void *ctx)
+{
+	struct bpf_dynptr ptr = {};
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	/* missing a call to bpf_ringbuf_discard/submit_dynptr */
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("Unreleased reference id=4")
+int ringbuf_missing_release2(void *ctx)
+{
+	struct bpf_dynptr ptr1, ptr2;
+	struct sample *sample;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(*sample), 0, &ptr1);
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(*sample), 0, &ptr2);
+
+	sample = bpf_dynptr_data(&ptr1, 0, sizeof(*sample));
+	if (!sample) {
+		bpf_ringbuf_discard_dynptr(&ptr1, 0);
+		bpf_ringbuf_discard_dynptr(&ptr2, 0);
+		return 0;
+	}
+
+	bpf_ringbuf_submit_dynptr(&ptr1, 0);
+
+	/* missing a call to bpf_ringbuf_discard/submit_dynptr on ptr2 */
+
+	return 0;
+}
+
+static int missing_release_callback_fn(__u32 index, void *data)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	/* missing a call to bpf_ringbuf_discard/submit_dynptr */
+
+	return 0;
+}
+
+/* Any dynptr initialized within a callback must have bpf_dynptr_put called */
+SEC("?raw_tp")
+__failure __msg("Unreleased reference id")
+int ringbuf_missing_release_callback(void *ctx)
+{
+	bpf_loop(10, missing_release_callback_fn, NULL, 0);
+	return 0;
+}
+
+/* Can't call bpf_ringbuf_submit/discard_dynptr on a non-initialized dynptr */
+SEC("?raw_tp")
+__failure __msg("arg 1 is an unacquired reference")
+int ringbuf_release_uninit_dynptr(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* A dynptr can't be used after it has been invalidated */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #2")
+int use_after_invalid(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	char read_data[64];
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(read_data), 0, &ptr);
+
+	bpf_dynptr_read(read_data, sizeof(read_data), &ptr, 0, 0);
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), &ptr, 0, 0);
+
+	return 0;
+}
+
+/* Can't call non-dynptr ringbuf APIs on a dynptr ringbuf sample */
+SEC("?raw_tp")
+__failure __msg("type=mem expected=ringbuf_mem")
+int ringbuf_invalid_api(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct sample *sample;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(*sample), 0, &ptr);
+	sample = bpf_dynptr_data(&ptr, 0, sizeof(*sample));
+	if (!sample)
+		goto done;
+
+	sample->pid = 123;
+
+	/* invalid API use. need to use dynptr API to submit/discard */
+	bpf_ringbuf_submit(sample, 0);
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* Can't add a dynptr to a map */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int add_dynptr_to_map1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	int key = 0;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	/* this should fail */
+	bpf_map_update_elem(&array_map1, &key, &ptr, 0);
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* Can't add a struct with an embedded dynptr to a map */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int add_dynptr_to_map2(void *ctx)
+{
+	struct test_info x;
+	int key = 0;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &x.ptr);
+
+	/* this should fail */
+	bpf_map_update_elem(&array_map2, &key, &x, 0);
+
+	bpf_ringbuf_submit_dynptr(&x.ptr, 0);
+
+	return 0;
+}
+
+/* A data slice can't be accessed out of bounds */
+SEC("?raw_tp")
+__failure __msg("value is outside of the allowed memory range")
+int data_slice_out_of_bounds_ringbuf(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	void *data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 8, 0, &ptr);
+
+	data  = bpf_dynptr_data(&ptr, 0, 8);
+	if (!data)
+		goto done;
+
+	/* can't index out of bounds of the data slice */
+	val = *((char *)data + 8);
+
+done:
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* A data slice can't be accessed out of bounds */
+SEC("?tc")
+__failure __msg("value is outside of the allowed memory range")
+int data_slice_out_of_bounds_skb(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	/* this should fail */
+	*(__u8*)(hdr + 1) = 1;
+
+	return SK_PASS;
+}
+
+/* A metadata slice can't be accessed out of bounds */
+SEC("?tc")
+__failure __msg("value is outside of the allowed memory range")
+int data_slice_out_of_bounds_skb_meta(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice_rdwr(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	/* this should fail */
+	*(md + 1) = 42;
+
+	return SK_PASS;
+}
+
+SEC("?raw_tp")
+__failure __msg("value is outside of the allowed memory range")
+int data_slice_out_of_bounds_map_value(void *ctx)
+{
+	__u32 map_val;
+	struct bpf_dynptr ptr;
+	void *data;
+
+	get_map_val_dynptr(&ptr);
+
+	data  = bpf_dynptr_data(&ptr, 0, sizeof(map_val));
+	if (!data)
+		return 0;
+
+	/* can't index out of bounds of the data slice */
+	val = *((char *)data + (sizeof(map_val) + 1));
+
+	return 0;
+}
+
+/* A data slice can't be used after it has been released */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int data_slice_use_after_release1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct sample *sample;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(*sample), 0, &ptr);
+	sample = bpf_dynptr_data(&ptr, 0, sizeof(*sample));
+	if (!sample)
+		goto done;
+
+	sample->pid = 123;
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	/* this should fail */
+	val = sample->pid;
+
+	return 0;
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* A data slice can't be used after it has been released.
+ *
+ * This tests the case where the data slice tracks a dynptr (ptr2)
+ * that is at a non-zero offset from the frame pointer (ptr1 is at fp,
+ * ptr2 is at fp - 16).
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int data_slice_use_after_release2(void *ctx)
+{
+	struct bpf_dynptr ptr1, ptr2;
+	struct sample *sample;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr1);
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(*sample), 0, &ptr2);
+
+	sample = bpf_dynptr_data(&ptr2, 0, sizeof(*sample));
+	if (!sample)
+		goto done;
+
+	sample->pid = 23;
+
+	bpf_ringbuf_submit_dynptr(&ptr2, 0);
+
+	/* this should fail */
+	sample->pid = 23;
+
+	bpf_ringbuf_submit_dynptr(&ptr1, 0);
+
+	return 0;
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr2, 0);
+	bpf_ringbuf_discard_dynptr(&ptr1, 0);
+	return 0;
+}
+
+/* A data slice must be first checked for NULL */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'mem_or_null'")
+int data_slice_missing_null_check1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	void *data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 8, 0, &ptr);
+
+	data  = bpf_dynptr_data(&ptr, 0, 8);
+
+	/* missing if (!data) check */
+
+	/* this should fail */
+	*(__u8 *)data = 3;
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* A data slice can't be dereferenced if it wasn't checked for null */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'mem_or_null'")
+int data_slice_missing_null_check2(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	__u64 *data1, *data2;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 16, 0, &ptr);
+
+	data1 = bpf_dynptr_data(&ptr, 0, 8);
+	data2 = bpf_dynptr_data(&ptr, 0, 8);
+	if (data1)
+		/* this should fail */
+		*data2 = 3;
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* Can't pass in a dynptr as an arg to a helper function that doesn't take in a
+ * dynptr argument
+ */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int invalid_helper1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	get_map_val_dynptr(&ptr);
+
+	/* this should fail */
+	bpf_strncmp((const char *)&ptr, sizeof(ptr), "hello!");
+
+	return 0;
+}
+
+/* A dynptr can't be passed into a helper function at a non-zero offset */
+SEC("?raw_tp")
+__failure __msg("cannot pass in dynptr at an offset=-8")
+int invalid_helper2(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	char read_data[64];
+
+	get_map_val_dynptr(&ptr);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), (void *)&ptr + 8, 0, 0);
+	return 0;
+}
+
+/* A bpf_dynptr is invalidated if it's been written into */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int invalid_write1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	void *data;
+	__u8 x = 0;
+
+	get_map_val_dynptr(&ptr);
+
+	memcpy(&ptr, &x, sizeof(x));
+
+	/* this should fail */
+	data = bpf_dynptr_data(&ptr, 0, 1);
+	__sink(data);
+
+	return 0;
+}
+
+/*
+ * A bpf_dynptr can't be used as a dynptr if it has been written into at a fixed
+ * offset
+ */
+SEC("?raw_tp")
+__failure __msg("cannot overwrite referenced dynptr")
+int invalid_write2(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	char read_data[64];
+	__u8 x = 0;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr);
+
+	memcpy((void *)&ptr + 8, &x, sizeof(x));
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), &ptr, 0, 0);
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/*
+ * A bpf_dynptr can't be used as a dynptr if it has been written into at a
+ * non-const offset
+ */
+SEC("?raw_tp")
+__failure __msg("cannot overwrite referenced dynptr")
+int invalid_write3(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	char stack_buf[16];
+	unsigned long len;
+	__u8 x = 0;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 8, 0, &ptr);
+
+	memcpy(stack_buf, &val, sizeof(val));
+	len = stack_buf[0] & 0xf;
+
+	memcpy((void *)&ptr + len, &x, sizeof(x));
+
+	/* this should fail */
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+static int invalid_write4_callback(__u32 index, void *data)
+{
+	*(__u32 *)data = 123;
+
+	return 0;
+}
+
+/* If the dynptr is written into in a callback function, it should
+ * be invalidated as a dynptr
+ */
+SEC("?raw_tp")
+__failure __msg("cannot overwrite referenced dynptr")
+int invalid_write4(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr);
+
+	bpf_loop(10, invalid_write4_callback, &ptr, 0);
+
+	/* this should fail */
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* A globally-defined bpf_dynptr can't be used (it must reside as a stack frame) */
+struct bpf_dynptr global_dynptr;
+
+SEC("?raw_tp")
+__failure __msg("type=map_value expected=fp")
+int global(void *ctx)
+{
+	/* this should fail */
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 16, 0, &global_dynptr);
+
+	bpf_ringbuf_discard_dynptr(&global_dynptr, 0);
+
+	return 0;
+}
+
+/* A direct read should fail */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int invalid_read1(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr);
+
+	/* this should fail */
+	val = *(int *)&ptr;
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* A direct read at an offset should fail */
+SEC("?raw_tp")
+__failure __msg("cannot pass in dynptr at an offset")
+int invalid_read2(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	char read_data[64];
+
+	get_map_val_dynptr(&ptr);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), (void *)&ptr + 1, 0, 0);
+
+	return 0;
+}
+
+/* A direct read at an offset into the lower stack slot should fail */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int invalid_read3(void *ctx)
+{
+	struct bpf_dynptr ptr1, ptr2;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 16, 0, &ptr1);
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 16, 0, &ptr2);
+
+	/* this should fail */
+	memcpy(&val, (void *)&ptr1 + 8, sizeof(val));
+
+	bpf_ringbuf_discard_dynptr(&ptr1, 0);
+	bpf_ringbuf_discard_dynptr(&ptr2, 0);
+
+	return 0;
+}
+
+static int invalid_read4_callback(__u32 index, void *data)
+{
+	/* this should fail */
+	val = *(__u32 *)data;
+
+	return 0;
+}
+
+/* A direct read within a callback function should fail */
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int invalid_read4(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr);
+
+	bpf_loop(10, invalid_read4_callback, &ptr, 0);
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* Initializing a dynptr on an offset should fail */
+SEC("?raw_tp")
+__failure __msg("cannot pass in dynptr at an offset=0")
+int invalid_offset(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr + 1);
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+/* Can't release a dynptr twice */
+SEC("?raw_tp")
+__failure __msg("arg 1 is an unacquired reference")
+int release_twice(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 16, 0, &ptr);
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+
+	/* this second release should fail */
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+
+	return 0;
+}
+
+static int release_twice_callback_fn(__u32 index, void *data)
+{
+	/* this should fail */
+	bpf_ringbuf_discard_dynptr(data, 0);
+
+	return 0;
+}
+
+/* Test that releasing a dynptr twice, where one of the releases happens
+ * within a callback function, fails
+ */
+SEC("?raw_tp")
+__failure __msg("arg 1 is an unacquired reference")
+int release_twice_callback(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 32, 0, &ptr);
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+
+	bpf_loop(10, release_twice_callback_fn, &ptr, 0);
+
+	return 0;
+}
+
+/* Reject unsupported local mem types for dynptr_from_mem API */
+SEC("?raw_tp")
+__failure __msg("Unsupported reg type fp for bpf_dynptr_from_mem data")
+int dynptr_from_mem_invalid_api(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	int x = 0;
+
+	/* this should fail */
+	bpf_dynptr_from_mem(&x, sizeof(x), 0, &ptr);
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot overwrite referenced dynptr") __log_level(2)
+int dynptr_pruning_overwrite(struct __sk_buff *ctx)
+{
+	asm volatile (
+		"r9 = 0xeB9F;				\
+		 r6 = %[ringbuf] ll;			\
+		 r1 = r6;				\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -16;				\
+		 call %[bpf_ringbuf_reserve_dynptr];	\
+		 if r0 == 0 goto pjmp1;			\
+		 goto pjmp2;				\
+	pjmp1:						\
+		 *(u64 *)(r10 - 16) = r9;		\
+	pjmp2:						\
+		 r1 = r10;				\
+		 r1 += -16;				\
+		 r2 = 0;				\
+		 call %[bpf_ringbuf_discard_dynptr];	"
+		:
+		: __imm(bpf_ringbuf_reserve_dynptr),
+		  __imm(bpf_ringbuf_discard_dynptr),
+		  __imm_addr(ringbuf)
+		: __clobber_all
+	);
+	return 0;
+}
+
+SEC("?tc")
+__success __msg("12: safe") __log_level(2)
+int dynptr_pruning_stacksafe(struct __sk_buff *ctx)
+{
+	asm volatile (
+		"r9 = 0xeB9F;				\
+		 r6 = %[ringbuf] ll;			\
+		 r1 = r6;				\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -16;				\
+		 call %[bpf_ringbuf_reserve_dynptr];	\
+		 if r0 == 0 goto stjmp1;		\
+		 goto stjmp2;				\
+	stjmp1:						\
+		 r9 = r9;				\
+	stjmp2:						\
+		 r1 = r10;				\
+		 r1 += -16;				\
+		 r2 = 0;				\
+		 call %[bpf_ringbuf_discard_dynptr];	"
+		:
+		: __imm(bpf_ringbuf_reserve_dynptr),
+		  __imm(bpf_ringbuf_discard_dynptr),
+		  __imm_addr(ringbuf)
+		: __clobber_all
+	);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot overwrite referenced dynptr") __log_level(2)
+int dynptr_pruning_type_confusion(struct __sk_buff *ctx)
+{
+	asm volatile (
+		"r6 = %[array_map4] ll;			\
+		 r7 = %[ringbuf] ll;			\
+		 r1 = r6;				\
+		 r2 = r10;				\
+		 r2 += -8;				\
+		 r9 = 0;				\
+		 *(u64 *)(r2 + 0) = r9;			\
+		 r3 = r10;				\
+		 r3 += -24;				\
+		 r9 = 0xeB9FeB9F;			\
+		 *(u64 *)(r10 - 16) = r9;		\
+		 *(u64 *)(r10 - 24) = r9;		\
+		 r9 = 0;				\
+		 r4 = 0;				\
+		 r8 = r2;				\
+		 call %[bpf_map_update_elem];		\
+		 r1 = r6;				\
+		 r2 = r8;				\
+		 call %[bpf_map_lookup_elem];		\
+		 if r0 != 0 goto tjmp1;			\
+		 exit;					\
+	tjmp1:						\
+		 r8 = r0;				\
+		 r1 = r7;				\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -16;				\
+		 r0 = *(u64 *)(r0 + 0);			\
+		 call %[bpf_ringbuf_reserve_dynptr];	\
+		 if r0 == 0 goto tjmp2;			\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 r8 = r8;				\
+		 goto tjmp3;				\
+	tjmp2:						\
+		 *(u64 *)(r10 - 8) = r9;		\
+		 *(u64 *)(r10 - 16) = r9;		\
+		 r1 = r8;				\
+		 r1 += 8;				\
+		 r2 = 0;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -16;				\
+		 call %[bpf_dynptr_from_mem];		\
+	tjmp3:						\
+		 r1 = r10;				\
+		 r1 += -16;				\
+		 r2 = 0;				\
+		 call %[bpf_ringbuf_discard_dynptr];	"
+		:
+		: __imm(bpf_map_update_elem),
+		  __imm(bpf_map_lookup_elem),
+		  __imm(bpf_ringbuf_reserve_dynptr),
+		  __imm(bpf_dynptr_from_mem),
+		  __imm(bpf_ringbuf_discard_dynptr),
+		  __imm_addr(array_map4),
+		  __imm_addr(ringbuf)
+		: __clobber_all
+	);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("dynptr has to be at a constant offset") __log_level(2)
+int dynptr_var_off_overwrite(struct __sk_buff *ctx)
+{
+	asm volatile (
+		"r9 = 16;				\
+		 *(u32 *)(r10 - 4) = r9;		\
+		 r8 = *(u32 *)(r10 - 4);		\
+		 if r8 >= 0 goto vjmp1;			\
+		 r0 = 1;				\
+		 exit;					\
+	vjmp1:						\
+		 if r8 <= 16 goto vjmp2;		\
+		 r0 = 1;				\
+		 exit;					\
+	vjmp2:						\
+		 r8 &= 16;				\
+		 r1 = %[ringbuf] ll;			\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -32;				\
+		 r4 += r8;				\
+		 call %[bpf_ringbuf_reserve_dynptr];	\
+		 r9 = 0xeB9F;				\
+		 *(u64 *)(r10 - 16) = r9;		\
+		 r1 = r10;				\
+		 r1 += -32;				\
+		 r1 += r8;				\
+		 r2 = 0;				\
+		 call %[bpf_ringbuf_discard_dynptr];	"
+		:
+		: __imm(bpf_ringbuf_reserve_dynptr),
+		  __imm(bpf_ringbuf_discard_dynptr),
+		  __imm_addr(ringbuf)
+		: __clobber_all
+	);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot overwrite referenced dynptr") __log_level(2)
+int dynptr_partial_slot_invalidate(struct __sk_buff *ctx)
+{
+	asm volatile (
+		"r6 = %[ringbuf] ll;			\
+		 r7 = %[array_map4] ll;			\
+		 r1 = r7;				\
+		 r2 = r10;				\
+		 r2 += -8;				\
+		 r9 = 0;				\
+		 *(u64 *)(r2 + 0) = r9;			\
+		 r3 = r2;				\
+		 r4 = 0;				\
+		 r8 = r2;				\
+		 call %[bpf_map_update_elem];		\
+		 r1 = r7;				\
+		 r2 = r8;				\
+		 call %[bpf_map_lookup_elem];		\
+		 if r0 != 0 goto sjmp1;			\
+		 exit;					\
+	sjmp1:						\
+		 r7 = r0;				\
+		 r1 = r6;				\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -24;				\
+		 call %[bpf_ringbuf_reserve_dynptr];	\
+		 *(u64 *)(r10 - 16) = r9;		\
+		 r1 = r7;				\
+		 r2 = 8;				\
+		 r3 = 0;				\
+		 r4 = r10;				\
+		 r4 += -16;				\
+		 call %[bpf_dynptr_from_mem];		\
+		 r1 = r10;				\
+		 r1 += -512;				\
+		 r2 = 488;				\
+		 r3 = r10;				\
+		 r3 += -24;				\
+		 r4 = 0;				\
+		 r5 = 0;				\
+		 call %[bpf_dynptr_read];		\
+		 r8 = 1;				\
+		 if r0 != 0 goto sjmp2;			\
+		 r8 = 0;				\
+	sjmp2:						\
+		 r1 = r10;				\
+		 r1 += -24;				\
+		 r2 = 0;				\
+		 call %[bpf_ringbuf_discard_dynptr];	"
+		:
+		: __imm(bpf_map_update_elem),
+		  __imm(bpf_map_lookup_elem),
+		  __imm(bpf_ringbuf_reserve_dynptr),
+		  __imm(bpf_ringbuf_discard_dynptr),
+		  __imm(bpf_dynptr_from_mem),
+		  __imm(bpf_dynptr_read),
+		  __imm_addr(ringbuf),
+		  __imm_addr(array_map4)
+		: __clobber_all
+	);
+	return 0;
+}
+
+/* Test that it is allowed to overwrite unreferenced dynptr. */
+SEC("?raw_tp")
+__success
+int dynptr_overwrite_unref(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+
+	return 0;
+}
+
+/* Test that slices are invalidated on reinitializing a dynptr. */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int dynptr_invalidate_slice_reinit(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	__u8 *p;
+
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+	p = bpf_dynptr_data(&ptr, 0, 1);
+	if (!p)
+		return 0;
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+	/* this should fail */
+	return *p;
+}
+
+/* Invalidation of dynptr slices on destruction of dynptr should not miss
+ * mem_or_null pointers.
+ */
+SEC("?raw_tp")
+__failure __msg("R{{[0-9]+}} type=scalar expected=percpu_ptr_")
+int dynptr_invalidate_slice_or_null(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	__u8 *p;
+
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+
+	p = bpf_dynptr_data(&ptr, 0, 1);
+	*(__u8 *)&ptr = 0;
+	/* this should fail */
+	bpf_this_cpu_ptr(p);
+	return 0;
+}
+
+/* Destruction of dynptr should also any slices obtained from it */
+SEC("?raw_tp")
+__failure __msg("R{{[0-9]+}} invalid mem access 'scalar'")
+int dynptr_invalidate_slice_failure(void *ctx)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr ptr2;
+	__u8 *p1, *p2;
+
+	if (get_map_val_dynptr(&ptr1))
+		return 0;
+	if (get_map_val_dynptr(&ptr2))
+		return 0;
+
+	p1 = bpf_dynptr_data(&ptr1, 0, 1);
+	if (!p1)
+		return 0;
+	p2 = bpf_dynptr_data(&ptr2, 0, 1);
+	if (!p2)
+		return 0;
+
+	*(__u8 *)&ptr1 = 0;
+	/* this should fail */
+	return *p1;
+}
+
+/* Invalidation of slices should be scoped and should not prevent dereferencing
+ * slices of another dynptr after destroying unrelated dynptr
+ */
+SEC("?raw_tp")
+__success
+int dynptr_invalidate_slice_success(void *ctx)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr ptr2;
+	__u8 *p1, *p2;
+
+	if (get_map_val_dynptr(&ptr1))
+		return 1;
+	if (get_map_val_dynptr(&ptr2))
+		return 1;
+
+	p1 = bpf_dynptr_data(&ptr1, 0, 1);
+	if (!p1)
+		return 1;
+	p2 = bpf_dynptr_data(&ptr2, 0, 1);
+	if (!p2)
+		return 1;
+
+	*(__u8 *)&ptr1 = 0;
+	return *p2;
+}
+
+/* Overwriting referenced dynptr should be rejected */
+SEC("?raw_tp")
+__failure __msg("cannot overwrite referenced dynptr")
+int dynptr_overwrite_ref(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr);
+	/* this should fail */
+	if (get_map_val_dynptr(&ptr))
+		bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+/* Reject writes to dynptr slot from bpf_dynptr_read */
+SEC("?raw_tp")
+__failure __msg("potential write to dynptr at off=-16")
+int dynptr_read_into_slot(void *ctx)
+{
+	union {
+		struct {
+			char _pad[48];
+			struct bpf_dynptr ptr;
+		};
+		char buf[64];
+	} data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &data.ptr);
+	/* this should fail */
+	bpf_dynptr_read(data.buf, sizeof(data.buf), &data.ptr, 0, 0);
+
+	return 0;
+}
+
+/* bpf_dynptr_slice()s are read-only and cannot be written to */
+SEC("?tc")
+__failure __msg("R{{[0-9]+}} cannot write into rdonly_mem")
+int skb_invalid_slice_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	hdr = bpf_dynptr_slice(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	/* this should fail */
+	hdr->h_proto = 1;
+
+	return SK_PASS;
+}
+
+/* bpf_dynptr_slice()s are read-only and cannot be written to */
+SEC("?tc")
+__failure __msg("R{{[0-9]+}} cannot write into rdonly_mem")
+int skb_meta_invalid_slice_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	/* this should fail */
+	*md = 42;
+
+	return SK_PASS;
+}
+
+/* The read-only data slice is invalidated whenever a helper changes packet data */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int skb_invalid_data_slice1(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	hdr = bpf_dynptr_slice(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	val = hdr->h_proto;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	val = hdr->h_proto;
+
+	return SK_PASS;
+}
+
+/* The read-write data slice is invalidated whenever a helper changes packet data */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int skb_invalid_data_slice2(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	hdr->h_proto = 123;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	hdr->h_proto = 1;
+
+	return SK_PASS;
+}
+
+/* The read-only data slice is invalidated whenever bpf_dynptr_write() is called */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int skb_invalid_data_slice3(struct __sk_buff *skb)
+{
+	char write_data[64] = "hello there, world!!";
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	hdr = bpf_dynptr_slice(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	val = hdr->h_proto;
+
+	bpf_dynptr_write(&ptr, 0, write_data, sizeof(write_data), 0);
+
+	/* this should fail */
+	val = hdr->h_proto;
+
+	return SK_PASS;
+}
+
+/* The read-write data slice is invalidated whenever bpf_dynptr_write() is called */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int skb_invalid_data_slice4(struct __sk_buff *skb)
+{
+	char write_data[64] = "hello there, world!!";
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+	hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	hdr->h_proto = 123;
+
+	bpf_dynptr_write(&ptr, 0, write_data, sizeof(write_data), 0);
+
+	/* this should fail */
+	hdr->h_proto = 1;
+
+	return SK_PASS;
+}
+
+/* Read-only skb data slice is invalidated on write to skb metadata */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int ro_skb_slice_invalid_after_metadata_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *d;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	d = bpf_dynptr_slice(&data, 0, NULL, sizeof(*d));
+	if (!d)
+		return SK_DROP;
+
+	bpf_dynptr_write(&meta, 0, "x", 1, 0);
+
+	/* this should fail */
+	val = *d;
+
+	return SK_PASS;
+}
+
+/* Read-write skb data slice is invalidated on write to skb metadata */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int rw_skb_slice_invalid_after_metadata_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *d;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	d = bpf_dynptr_slice_rdwr(&data, 0, NULL, sizeof(*d));
+	if (!d)
+		return SK_DROP;
+
+	bpf_dynptr_write(&meta, 0, "x", 1, 0);
+
+	/* this should fail */
+	*d = 42;
+
+	return SK_PASS;
+}
+
+/* Read-only skb metadata slice is invalidated on write to skb data */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int ro_skb_meta_slice_invalid_after_payload_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	bpf_dynptr_write(&data, 0, "x", 1, 0);
+
+	/* this should fail */
+	val = *md;
+
+	return SK_PASS;
+}
+
+/* Read-write skb metadata slice is invalidated on write to skb data slice */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int rw_skb_meta_slice_invalid_after_payload_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice_rdwr(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	bpf_dynptr_write(&data, 0, "x", 1, 0);
+
+	/* this should fail */
+	*md = 42;
+
+	return SK_PASS;
+}
+
+/* Read-only skb metadata slice is invalidated whenever a helper changes packet data */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int ro_skb_meta_slice_invalid_after_payload_helper(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	val = *md;
+
+	return SK_PASS;
+}
+
+/* Read-write skb metadata slice is invalidated whenever a helper changes packet data */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int rw_skb_meta_slice_invalid_after_payload_helper(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice_rdwr(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	*md = 42;
+
+	return SK_PASS;
+}
+
+/* Read-only skb metadata slice is invalidated on write to skb metadata */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int ro_skb_meta_slice_invalid_after_metadata_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	bpf_dynptr_write(&meta, 0, "x", 1, 0);
+
+	/* this should fail */
+	val = *md;
+
+	return SK_PASS;
+}
+
+/* Read-write skb metadata slice is invalidated on write to skb metadata */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int rw_skb_meta_slice_invalid_after_metadata_write(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+
+	md = bpf_dynptr_slice_rdwr(&meta, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	bpf_dynptr_write(&meta, 0, "x", 1, 0);
+
+	/* this should fail */
+	*md = 42;
+
+	return SK_PASS;
+}
+
+/* The read-only data slice is invalidated whenever a helper changes packet data */
+SEC("?xdp")
+__failure __msg("invalid mem access 'scalar'")
+int xdp_invalid_data_slice1(struct xdp_md *xdp)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr);
+	hdr = bpf_dynptr_slice(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	val = hdr->h_proto;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(*hdr)))
+		return XDP_DROP;
+
+	/* this should fail */
+	val = hdr->h_proto;
+
+	return XDP_PASS;
+}
+
+/* The read-write data slice is invalidated whenever a helper changes packet data */
+SEC("?xdp")
+__failure __msg("invalid mem access 'scalar'")
+int xdp_invalid_data_slice2(struct xdp_md *xdp)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr);
+	hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	if (!hdr)
+		return SK_DROP;
+
+	hdr->h_proto = 9;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(*hdr)))
+		return XDP_DROP;
+
+	/* this should fail */
+	hdr->h_proto = 1;
+
+	return XDP_PASS;
+}
+
+/* Only supported prog type can create skb-type dynptrs */
+SEC("?raw_tp")
+__failure __msg("calling kernel function bpf_dynptr_from_skb is not allowed")
+int skb_invalid_ctx(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_dynptr_from_skb(ctx, 0, &ptr);
+
+	return 0;
+}
+
+/* Only supported prog type can create skb_meta-type dynptrs */
+SEC("?raw_tp")
+__failure __msg("calling kernel function bpf_dynptr_from_skb_meta is not allowed")
+int skb_meta_invalid_ctx(void *ctx)
+{
+	struct bpf_dynptr meta;
+
+	/* this should fail */
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+
+	return 0;
+}
+
+SEC("fentry/skb_tx_error")
+__failure __msg("must be referenced or trusted")
+int BPF_PROG(skb_invalid_ctx_fentry, void *skb)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	return 0;
+}
+
+SEC("fexit/skb_tx_error")
+__failure __msg("must be referenced or trusted")
+int BPF_PROG(skb_invalid_ctx_fexit, void *skb)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	return 0;
+}
+
+/* Reject writes to dynptr slot for uninit arg */
+SEC("?raw_tp")
+__failure __msg("potential write to dynptr at off=-16")
+int uninit_write_into_slot(void *ctx)
+{
+	struct {
+		char buf[64];
+		struct bpf_dynptr ptr;
+	} data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 80, 0, &data.ptr);
+	/* this should fail */
+	bpf_get_current_comm(data.buf, 80);
+
+	return 0;
+}
+
+/* Only supported prog type can create xdp-type dynptrs */
+SEC("?raw_tp")
+__failure __msg("calling kernel function bpf_dynptr_from_xdp is not allowed")
+int xdp_invalid_ctx(void *ctx)
+{
+	struct bpf_dynptr ptr;
+
+	/* this should fail */
+	bpf_dynptr_from_xdp(ctx, 0, &ptr);
+
+	return 0;
+}
+
+__u32 hdr_size = sizeof(struct ethhdr);
+/* Can't pass in variable-sized len to bpf_dynptr_slice */
+SEC("?tc")
+__failure __msg("unbounded memory access")
+int dynptr_slice_var_len1(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	char buffer[sizeof(*hdr)] = {};
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	/* this should fail */
+	hdr = bpf_dynptr_slice(&ptr, 0, buffer, hdr_size);
+	if (!hdr)
+		return SK_DROP;
+
+	return SK_PASS;
+}
+
+/* Can't pass in variable-sized len to bpf_dynptr_slice */
+SEC("?tc")
+__failure __msg("must be a known constant")
+int dynptr_slice_var_len2(struct __sk_buff *skb)
+{
+	char buffer[sizeof(struct ethhdr)] = {};
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	if (hdr_size <= sizeof(buffer)) {
+		/* this should fail */
+		hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, hdr_size);
+		if (!hdr)
+			return SK_DROP;
+		hdr->h_proto = 12;
+	}
+
+	return SK_PASS;
+}
+
+static int callback(__u32 index, void *data)
+{
+        *(__u32 *)data = 123;
+
+        return 0;
+}
+
+/* If the dynptr is written into in a callback function, its data
+ * slices should be invalidated as well.
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int invalid_data_slices(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	__u32 *slice;
+
+	if (get_map_val_dynptr(&ptr))
+		return 0;
+
+	slice = bpf_dynptr_data(&ptr, 0, sizeof(__u32));
+	if (!slice)
+		return 0;
+
+	bpf_loop(10, callback, &ptr, 0);
+
+	/* this should fail */
+	*slice = 1;
+
+	return 0;
+}
+
+/* Program types that don't allow writes to packet data should fail if
+ * bpf_dynptr_slice_rdwr is called
+ */
+SEC("cgroup_skb/ingress")
+__failure __msg("the prog does not allow writes to packet data")
+int invalid_slice_rdwr_rdonly(struct __sk_buff *skb)
+{
+	char buffer[sizeof(struct ethhdr)] = {};
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	/* this should fail since cgroup_skb doesn't allow
+	 * changing packet data
+	 */
+	hdr = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	__sink(hdr);
+
+	return 0;
+}
+
+/* bpf_dynptr_adjust can only be called on initialized dynptrs */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int dynptr_adjust_invalid(void *ctx)
+{
+	struct bpf_dynptr ptr = {};
+
+	/* this should fail */
+	bpf_dynptr_adjust(&ptr, 1, 2);
+
+	return 0;
+}
+
+/* bpf_dynptr_is_null can only be called on initialized dynptrs */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int dynptr_is_null_invalid(void *ctx)
+{
+	struct bpf_dynptr ptr = {};
+
+	/* this should fail */
+	bpf_dynptr_is_null(&ptr);
+
+	return 0;
+}
+
+/* bpf_dynptr_is_rdonly can only be called on initialized dynptrs */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int dynptr_is_rdonly_invalid(void *ctx)
+{
+	struct bpf_dynptr ptr = {};
+
+	/* this should fail */
+	bpf_dynptr_is_rdonly(&ptr);
+
+	return 0;
+}
+
+/* bpf_dynptr_size can only be called on initialized dynptrs */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int dynptr_size_invalid(void *ctx)
+{
+	struct bpf_dynptr ptr = {};
+
+	/* this should fail */
+	bpf_dynptr_size(&ptr);
+
+	return 0;
+}
+
+/* Only initialized dynptrs can be cloned */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #0")
+int clone_invalid1(void *ctx)
+{
+	struct bpf_dynptr ptr1 = {};
+	struct bpf_dynptr ptr2;
+
+	/* this should fail */
+	bpf_dynptr_clone(&ptr1, &ptr2);
+
+	return 0;
+}
+
+/* Can't overwrite an existing dynptr when cloning */
+SEC("?xdp")
+__failure __msg("cannot overwrite referenced dynptr")
+int clone_invalid2(struct xdp_md *xdp)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr clone;
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr1);
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &clone);
+
+	/* this should fail */
+	bpf_dynptr_clone(&ptr1, &clone);
+
+	bpf_ringbuf_submit_dynptr(&clone, 0);
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate its clones */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #2")
+int clone_invalidate1(void *ctx)
+{
+	struct bpf_dynptr clone;
+	struct bpf_dynptr ptr;
+	char read_data[64];
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone);
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), &clone, 0, 0);
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate its parent */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #2")
+int clone_invalidate2(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct bpf_dynptr clone;
+	char read_data[64];
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone);
+
+	bpf_ringbuf_submit_dynptr(&clone, 0);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), &ptr, 0, 0);
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate its siblings */
+SEC("?raw_tp")
+__failure __msg("Expected an initialized dynptr as arg #2")
+int clone_invalidate3(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct bpf_dynptr clone1;
+	struct bpf_dynptr clone2;
+	char read_data[64];
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone1);
+
+	bpf_dynptr_clone(&ptr, &clone2);
+
+	bpf_ringbuf_submit_dynptr(&clone2, 0);
+
+	/* this should fail */
+	bpf_dynptr_read(read_data, sizeof(read_data), &clone1, 0, 0);
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate any data slices
+ * of its clones
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int clone_invalidate4(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct bpf_dynptr clone;
+	int *data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone);
+	data = bpf_dynptr_data(&clone, 0, sizeof(val));
+	if (!data)
+		return 0;
+
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+
+	/* this should fail */
+	*data = 123;
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate any data slices
+ * of its parent
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int clone_invalidate5(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct bpf_dynptr clone;
+	int *data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+	data = bpf_dynptr_data(&ptr, 0, sizeof(val));
+	if (!data)
+		return 0;
+
+	bpf_dynptr_clone(&ptr, &clone);
+
+	bpf_ringbuf_submit_dynptr(&clone, 0);
+
+	/* this should fail */
+	*data = 123;
+
+	return 0;
+}
+
+/* Invalidating a dynptr should invalidate any data slices
+ * of its sibling
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int clone_invalidate6(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct bpf_dynptr clone1;
+	struct bpf_dynptr clone2;
+	int *data;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone1);
+
+	bpf_dynptr_clone(&ptr, &clone2);
+
+	data = bpf_dynptr_data(&clone1, 0, sizeof(val));
+	if (!data)
+		return 0;
+
+	bpf_ringbuf_submit_dynptr(&clone2, 0);
+
+	/* this should fail */
+	*data = 123;
+
+	return 0;
+}
+
+/* A skb clone's data slices should be invalid anytime packet data changes */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int clone_skb_packet_data(struct __sk_buff *skb)
+{
+	char buffer[sizeof(__u32)] = {};
+	struct bpf_dynptr clone;
+	struct bpf_dynptr ptr;
+	__u32 *data;
+
+	bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone);
+	data = bpf_dynptr_slice_rdwr(&clone, 0, buffer, sizeof(buffer));
+	if (!data)
+		return XDP_DROP;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	*data = 123;
+
+	return 0;
+}
+
+/* A skb clone's metadata slice becomes invalid anytime packet data changes */
+SEC("?tc")
+__failure __msg("invalid mem access 'scalar'")
+int clone_skb_packet_meta(struct __sk_buff *skb)
+{
+	struct bpf_dynptr clone, meta;
+	__u8 *md;
+
+	bpf_dynptr_from_skb_meta(skb, 0, &meta);
+	bpf_dynptr_clone(&meta, &clone);
+	md = bpf_dynptr_slice_rdwr(&clone, 0, NULL, sizeof(*md));
+	if (!md)
+		return SK_DROP;
+
+	if (bpf_skb_pull_data(skb, skb->len))
+		return SK_DROP;
+
+	/* this should fail */
+	*md = 42;
+
+	return 0;
+}
+
+/* A xdp clone's data slices should be invalid anytime packet data changes */
+SEC("?xdp")
+__failure __msg("invalid mem access 'scalar'")
+int clone_xdp_packet_data(struct xdp_md *xdp)
+{
+	char buffer[sizeof(__u32)] = {};
+	struct bpf_dynptr clone;
+	struct bpf_dynptr ptr;
+	struct ethhdr *hdr;
+	__u32 *data;
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr);
+
+	bpf_dynptr_clone(&ptr, &clone);
+	data = bpf_dynptr_slice_rdwr(&clone, 0, buffer, sizeof(buffer));
+	if (!data)
+		return XDP_DROP;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(*hdr)))
+		return XDP_DROP;
+
+	/* this should fail */
+	*data = 123;
+
+	return 0;
+}
+
+/* Buffers that are provided must be sufficiently long */
+SEC("?cgroup_skb/egress")
+__failure __msg("memory, len pair leads to invalid memory access")
+int test_dynptr_skb_small_buff(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	char buffer[8] = {};
+	__u64 *data;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* This may return NULL. SKB may require a buffer */
+	data = bpf_dynptr_slice(&ptr, 0, buffer, 9);
+
+	return !!data;
+}
+
+__noinline long global_call_bpf_dynptr(const struct bpf_dynptr *dynptr)
+{
+	long ret = 0;
+	/* Avoid leaving this global function empty to avoid having the compiler
+	 * optimize away the call to this global function.
+	 */
+	__sink(ret);
+	return ret;
+}
+
+SEC("?raw_tp")
+__failure __msg("arg#0 expected pointer to stack or const struct bpf_dynptr")
+int test_dynptr_reg_type(void *ctx)
+{
+	struct task_struct *current = NULL;
+	/* R1 should be holding a PTR_TO_BTF_ID, so this shouldn't be a
+	 * reg->type that can be passed to a function accepting a
+	 * ARG_PTR_TO_DYNPTR | MEM_RDONLY. process_dynptr_func() should catch
+	 * this.
+	 */
+	global_call_bpf_dynptr((const struct bpf_dynptr *)current);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/dynptr_success.c b/tools/testing/selftests/bpf/progs/dynptr_success.c
new file mode 100644
index 000000000000..e0d672d93adf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/dynptr_success.c
@@ -0,0 +1,1137 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "errno.h"
+
+#define PAGE_SIZE_64K 65536
+
+char _license[] SEC("license") = "GPL";
+
+int pid, err, val;
+
+struct ringbuf_sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} array_map SEC(".maps");
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_read_write(void *ctx)
+{
+	char write_data[64] = "hello there, world!!";
+	char read_data[64] = {};
+	struct bpf_dynptr ptr;
+	int i;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(write_data), 0, &ptr);
+
+	/* Write data into the dynptr */
+	err = bpf_dynptr_write(&ptr, 0, write_data, sizeof(write_data), 0);
+
+	/* Read the data that was written into the dynptr */
+	err = err ?: bpf_dynptr_read(read_data, sizeof(read_data), &ptr, 0, 0);
+
+	/* Ensure the data we read matches the data we wrote */
+	for (i = 0; i < sizeof(read_data); i++) {
+		if (read_data[i] != write_data[i]) {
+			err = 1;
+			break;
+		}
+	}
+
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_data(void *ctx)
+{
+	__u32 key = 0, val = 235, *map_val;
+	struct bpf_dynptr ptr;
+	__u32 map_val_size;
+	void *data;
+
+	map_val_size = sizeof(*map_val);
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	bpf_map_update_elem(&array_map, &key, &val, 0);
+
+	map_val = bpf_map_lookup_elem(&array_map, &key);
+	if (!map_val) {
+		err = 1;
+		return 0;
+	}
+
+	bpf_dynptr_from_mem(map_val, map_val_size, 0, &ptr);
+
+	/* Try getting a data slice that is out of range */
+	data = bpf_dynptr_data(&ptr, map_val_size + 1, 1);
+	if (data) {
+		err = 2;
+		return 0;
+	}
+
+	/* Try getting more bytes than available */
+	data = bpf_dynptr_data(&ptr, 0, map_val_size + 1);
+	if (data) {
+		err = 3;
+		return 0;
+	}
+
+	data = bpf_dynptr_data(&ptr, 0, sizeof(__u32));
+	if (!data) {
+		err = 4;
+		return 0;
+	}
+
+	*(__u32 *)data = 999;
+
+	err = bpf_probe_read_kernel(&val, sizeof(val), data);
+	if (err)
+		return 0;
+
+	if (val != *(int *)data)
+		err = 5;
+
+	return 0;
+}
+
+static int ringbuf_callback(__u32 index, void *data)
+{
+	struct ringbuf_sample *sample;
+
+	struct bpf_dynptr *ptr = (struct bpf_dynptr *)data;
+
+	sample = bpf_dynptr_data(ptr, 0, sizeof(*sample));
+	if (!sample)
+		err = 2;
+	else
+		sample->pid += index;
+
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_ringbuf(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	struct ringbuf_sample *sample;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	val = 100;
+
+	/* check that you can reserve a dynamic size reservation */
+	err = bpf_ringbuf_reserve_dynptr(&ringbuf, val, 0, &ptr);
+
+	sample = err ? NULL : bpf_dynptr_data(&ptr, 0, sizeof(*sample));
+	if (!sample) {
+		err = 1;
+		goto done;
+	}
+
+	sample->pid = 10;
+
+	/* Can pass dynptr to callback functions */
+	bpf_loop(10, ringbuf_callback, &ptr, 0);
+
+	if (sample->pid != 55)
+		err = 2;
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+SEC("?cgroup_skb/egress")
+int test_skb_readonly(struct __sk_buff *skb)
+{
+	__u8 write_data[2] = {1, 2};
+	struct bpf_dynptr ptr;
+	int ret;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* since cgroup skbs are read only, writes should fail */
+	ret = bpf_dynptr_write(&ptr, 0, write_data, sizeof(write_data), 0);
+	if (ret != -EINVAL) {
+		err = 2;
+		return 1;
+	}
+
+	return 1;
+}
+
+SEC("?cgroup_skb/egress")
+int test_dynptr_skb_data(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	__u64 *data;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* This should return NULL. Must use bpf_dynptr_slice API */
+	data = bpf_dynptr_data(&ptr, 0, 1);
+	if (data) {
+		err = 2;
+		return 1;
+	}
+
+	return 1;
+}
+
+SEC("?tc")
+int test_dynptr_skb_meta_data(struct __sk_buff *skb)
+{
+	struct bpf_dynptr meta;
+	__u8 *md;
+	int ret;
+
+	err = 1;
+	ret = bpf_dynptr_from_skb_meta(skb, 0, &meta);
+	if (ret)
+		return 1;
+
+	/* This should return NULL. Must use bpf_dynptr_slice API */
+	err = 2;
+	md = bpf_dynptr_data(&meta, 0, sizeof(*md));
+	if (md)
+		return 1;
+
+	err = 0;
+	return 1;
+}
+
+/* Check that skb metadata dynptr ops don't accept any flags. */
+SEC("?tc")
+int test_dynptr_skb_meta_flags(struct __sk_buff *skb)
+{
+	const __u64 INVALID_FLAGS = ~0ULL;
+	struct bpf_dynptr meta;
+	__u8 buf;
+	int ret;
+
+	err = 1;
+	ret = bpf_dynptr_from_skb_meta(skb, INVALID_FLAGS, &meta);
+	if (ret != -EINVAL)
+		return 1;
+
+	err = 2;
+	ret = bpf_dynptr_from_skb_meta(skb, 0, &meta);
+	if (ret)
+		return 1;
+
+	err = 3;
+	ret = bpf_dynptr_read(&buf, 0, &meta, 0, INVALID_FLAGS);
+	if (ret != -EINVAL)
+		return 1;
+
+	err = 4;
+	ret = bpf_dynptr_write(&meta, 0, &buf, 0, INVALID_FLAGS);
+	if (ret != -EINVAL)
+		return 1;
+
+	err = 0;
+	return 1;
+}
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int test_adjust(void *ctx)
+{
+	struct bpf_dynptr ptr;
+	__u32 bytes = 64;
+	__u32 off = 10;
+	__u32 trim = 15;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	err = bpf_ringbuf_reserve_dynptr(&ringbuf, bytes, 0, &ptr);
+	if (err) {
+		err = 1;
+		goto done;
+	}
+
+	if (bpf_dynptr_size(&ptr) != bytes) {
+		err = 2;
+		goto done;
+	}
+
+	/* Advance the dynptr by off */
+	err = bpf_dynptr_adjust(&ptr, off, bpf_dynptr_size(&ptr));
+	if (err) {
+		err = 3;
+		goto done;
+	}
+
+	if (bpf_dynptr_size(&ptr) != bytes - off) {
+		err = 4;
+		goto done;
+	}
+
+	/* Trim the dynptr */
+	err = bpf_dynptr_adjust(&ptr, off, 15);
+	if (err) {
+		err = 5;
+		goto done;
+	}
+
+	/* Check that the size was adjusted correctly */
+	if (bpf_dynptr_size(&ptr) != trim - off) {
+		err = 6;
+		goto done;
+	}
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int test_adjust_err(void *ctx)
+{
+	char write_data[45] = "hello there, world!!";
+	struct bpf_dynptr ptr;
+	__u32 size = 64;
+	__u32 off = 20;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	if (bpf_ringbuf_reserve_dynptr(&ringbuf, size, 0, &ptr)) {
+		err = 1;
+		goto done;
+	}
+
+	/* Check that start can't be greater than end */
+	if (bpf_dynptr_adjust(&ptr, 5, 1) != -EINVAL) {
+		err = 2;
+		goto done;
+	}
+
+	/* Check that start can't be greater than size */
+	if (bpf_dynptr_adjust(&ptr, size + 1, size + 1) != -ERANGE) {
+		err = 3;
+		goto done;
+	}
+
+	/* Check that end can't be greater than size */
+	if (bpf_dynptr_adjust(&ptr, 0, size + 1) != -ERANGE) {
+		err = 4;
+		goto done;
+	}
+
+	if (bpf_dynptr_adjust(&ptr, off, size)) {
+		err = 5;
+		goto done;
+	}
+
+	/* Check that you can't write more bytes than available into the dynptr
+	 * after you've adjusted it
+	 */
+	if (bpf_dynptr_write(&ptr, 0, &write_data, sizeof(write_data), 0) != -E2BIG) {
+		err = 6;
+		goto done;
+	}
+
+	/* Check that even after adjusting, submitting/discarding
+	 * a ringbuf dynptr works
+	 */
+	bpf_ringbuf_submit_dynptr(&ptr, 0);
+	return 0;
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int test_zero_size_dynptr(void *ctx)
+{
+	char write_data = 'x', read_data;
+	struct bpf_dynptr ptr;
+	__u32 size = 64;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	if (bpf_ringbuf_reserve_dynptr(&ringbuf, size, 0, &ptr)) {
+		err = 1;
+		goto done;
+	}
+
+	/* After this, the dynptr has a size of 0 */
+	if (bpf_dynptr_adjust(&ptr, size, size)) {
+		err = 2;
+		goto done;
+	}
+
+	/* Test that reading + writing non-zero bytes is not ok */
+	if (bpf_dynptr_read(&read_data, sizeof(read_data), &ptr, 0, 0) != -E2BIG) {
+		err = 3;
+		goto done;
+	}
+
+	if (bpf_dynptr_write(&ptr, 0, &write_data, sizeof(write_data), 0) != -E2BIG) {
+		err = 4;
+		goto done;
+	}
+
+	/* Test that reading + writing 0 bytes from a 0-size dynptr is ok */
+	if (bpf_dynptr_read(&read_data, 0, &ptr, 0, 0)) {
+		err = 5;
+		goto done;
+	}
+
+	if (bpf_dynptr_write(&ptr, 0, &write_data, 0, 0)) {
+		err = 6;
+		goto done;
+	}
+
+	err = 0;
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr, 0);
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_is_null(void *ctx)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr ptr2;
+	__u64 size = 4;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	/* Pass in invalid flags, get back an invalid dynptr */
+	if (bpf_ringbuf_reserve_dynptr(&ringbuf, size, 123, &ptr1) != -EINVAL) {
+		err = 1;
+		goto exit_early;
+	}
+
+	/* Test that the invalid dynptr is null */
+	if (!bpf_dynptr_is_null(&ptr1)) {
+		err = 2;
+		goto exit_early;
+	}
+
+	/* Get a valid dynptr */
+	if (bpf_ringbuf_reserve_dynptr(&ringbuf, size, 0, &ptr2)) {
+		err = 3;
+		goto exit;
+	}
+
+	/* Test that the valid dynptr is not null */
+	if (bpf_dynptr_is_null(&ptr2)) {
+		err = 4;
+		goto exit;
+	}
+
+exit:
+	bpf_ringbuf_discard_dynptr(&ptr2, 0);
+exit_early:
+	bpf_ringbuf_discard_dynptr(&ptr1, 0);
+	return 0;
+}
+
+SEC("cgroup_skb/egress")
+int test_dynptr_is_rdonly(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr ptr2;
+	struct bpf_dynptr ptr3;
+
+	/* Pass in invalid flags, get back an invalid dynptr */
+	if (bpf_dynptr_from_skb(skb, 123, &ptr1) != -EINVAL) {
+		err = 1;
+		return 0;
+	}
+
+	/* Test that an invalid dynptr is_rdonly returns false */
+	if (bpf_dynptr_is_rdonly(&ptr1)) {
+		err = 2;
+		return 0;
+	}
+
+	/* Get a read-only dynptr */
+	if (bpf_dynptr_from_skb(skb, 0, &ptr2)) {
+		err = 3;
+		return 0;
+	}
+
+	/* Test that the dynptr is read-only */
+	if (!bpf_dynptr_is_rdonly(&ptr2)) {
+		err = 4;
+		return 0;
+	}
+
+	/* Get a read-writeable dynptr */
+	if (bpf_ringbuf_reserve_dynptr(&ringbuf, 64, 0, &ptr3)) {
+		err = 5;
+		goto done;
+	}
+
+	/* Test that the dynptr is read-only */
+	if (bpf_dynptr_is_rdonly(&ptr3)) {
+		err = 6;
+		goto done;
+	}
+
+done:
+	bpf_ringbuf_discard_dynptr(&ptr3, 0);
+	return 0;
+}
+
+SEC("cgroup_skb/egress")
+int test_dynptr_clone(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr1;
+	struct bpf_dynptr ptr2;
+	__u32 off = 2, size;
+
+	/* Get a dynptr */
+	if (bpf_dynptr_from_skb(skb, 0, &ptr1)) {
+		err = 1;
+		return 0;
+	}
+
+	if (bpf_dynptr_adjust(&ptr1, off, bpf_dynptr_size(&ptr1))) {
+		err = 2;
+		return 0;
+	}
+
+	/* Clone the dynptr */
+	if (bpf_dynptr_clone(&ptr1, &ptr2)) {
+		err = 3;
+		return 0;
+	}
+
+	size = bpf_dynptr_size(&ptr1);
+
+	/* Check that the clone has the same size and rd-only */
+	if (bpf_dynptr_size(&ptr2) != size) {
+		err = 4;
+		return 0;
+	}
+
+	if (bpf_dynptr_is_rdonly(&ptr2) != bpf_dynptr_is_rdonly(&ptr1)) {
+		err = 5;
+		return 0;
+	}
+
+	/* Advance and trim the original dynptr */
+	bpf_dynptr_adjust(&ptr1, 5, 5);
+
+	/* Check that only original dynptr was affected, and the clone wasn't */
+	if (bpf_dynptr_size(&ptr2) != size) {
+		err = 6;
+		return 0;
+	}
+
+	return 0;
+}
+
+SEC("?cgroup_skb/egress")
+int test_dynptr_skb_no_buff(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	__u64 *data;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* This may return NULL. SKB may require a buffer */
+	data = bpf_dynptr_slice(&ptr, 0, NULL, 1);
+
+	return !!data;
+}
+
+SEC("?cgroup_skb/egress")
+int test_dynptr_skb_strcmp(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	char *data;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* This may return NULL. SKB may require a buffer */
+	data = bpf_dynptr_slice(&ptr, 0, NULL, 10);
+	if (data) {
+		bpf_strncmp(data, 10, "foo");
+		return 1;
+	}
+
+	return 1;
+}
+
+SEC("tp_btf/kfree_skb")
+int BPF_PROG(test_dynptr_skb_tp_btf, void *skb, void *location)
+{
+	__u8 write_data[2] = {1, 2};
+	struct bpf_dynptr ptr;
+	int ret;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr)) {
+		err = 1;
+		return 1;
+	}
+
+	/* since tp_btf skbs are read only, writes should fail */
+	ret = bpf_dynptr_write(&ptr, 0, write_data, sizeof(write_data), 0);
+	if (ret != -EINVAL) {
+		err = 2;
+		return 1;
+	}
+
+	return 1;
+}
+
+static inline int bpf_memcmp(const char *a, const char *b, u32 size)
+{
+	int i;
+
+	bpf_for(i, 0, size) {
+		if (a[i] != b[i])
+			return a[i] < b[i] ? -1 : 1;
+	}
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_copy(void *ctx)
+{
+	char data[] = "hello there, world!!";
+	char buf[32] = {'\0'};
+	__u32 sz = sizeof(data);
+	struct bpf_dynptr src, dst;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sz, 0, &src);
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sz, 0, &dst);
+
+	/* Test basic case of copying contiguous memory backed dynptrs */
+	err = bpf_dynptr_write(&src, 0, data, sz, 0);
+	err = err ?: bpf_dynptr_copy(&dst, 0, &src, 0, sz);
+	err = err ?: bpf_dynptr_read(buf, sz, &dst, 0, 0);
+	err = err ?: bpf_memcmp(data, buf, sz);
+
+	/* Test that offsets are handled correctly */
+	err = err ?: bpf_dynptr_copy(&dst, 3, &src, 5, sz - 5);
+	err = err ?: bpf_dynptr_read(buf, sz - 5, &dst, 3, 0);
+	err = err ?: bpf_memcmp(data + 5, buf, sz - 5);
+
+	bpf_ringbuf_discard_dynptr(&src, 0);
+	bpf_ringbuf_discard_dynptr(&dst, 0);
+	return 0;
+}
+
+SEC("xdp")
+int test_dynptr_copy_xdp(struct xdp_md *xdp)
+{
+	struct bpf_dynptr ptr_buf, ptr_xdp;
+	char data[] = "qwertyuiopasdfghjkl";
+	char buf[32] = {'\0'};
+	__u32 len = sizeof(data), xdp_data_size;
+	int i, chunks = 200;
+
+	/* ptr_xdp is backed by non-contiguous memory */
+	bpf_dynptr_from_xdp(xdp, 0, &ptr_xdp);
+	xdp_data_size = bpf_dynptr_size(&ptr_xdp);
+	bpf_ringbuf_reserve_dynptr(&ringbuf, len * chunks, 0, &ptr_buf);
+
+	/* Destination dynptr is backed by non-contiguous memory */
+	bpf_for(i, 0, chunks) {
+		err = bpf_dynptr_write(&ptr_buf, i * len, data, len, 0);
+		if (err)
+			goto out;
+	}
+
+	err = bpf_dynptr_copy(&ptr_xdp, 0, &ptr_buf, 0, len * chunks);
+	if (err)
+		goto out;
+
+	bpf_for(i, 0, chunks) {
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = bpf_dynptr_read(&buf, len, &ptr_xdp, i * len, 0);
+		if (err)
+			goto out;
+		if (bpf_memcmp(data, buf, len) != 0)
+			goto out;
+	}
+
+	/* Source dynptr is backed by non-contiguous memory */
+	__builtin_memset(buf, 0, sizeof(buf));
+	bpf_for(i, 0, chunks) {
+		err = bpf_dynptr_write(&ptr_buf, i * len, buf, len, 0);
+		if (err)
+			goto out;
+	}
+
+	err = bpf_dynptr_copy(&ptr_buf, 0, &ptr_xdp, 0, len * chunks);
+	if (err)
+		goto out;
+
+	bpf_for(i, 0, chunks) {
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = bpf_dynptr_read(&buf, len, &ptr_buf, i * len, 0);
+		if (err)
+			goto out;
+		if (bpf_memcmp(data, buf, len) != 0)
+			goto out;
+	}
+
+	/* Both source and destination dynptrs are backed by non-contiguous memory */
+	err = bpf_dynptr_copy(&ptr_xdp, 2, &ptr_xdp, len, len * (chunks - 1));
+	if (err)
+		goto out;
+
+	bpf_for(i, 0, chunks - 1) {
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = bpf_dynptr_read(&buf, len, &ptr_xdp, 2 + i * len, 0);
+		if (err)
+			goto out;
+		if (bpf_memcmp(data, buf, len) != 0)
+			goto out;
+	}
+
+	if (bpf_dynptr_copy(&ptr_xdp, xdp_data_size - 3000, &ptr_xdp, 0, len * chunks) != -E2BIG)
+		err = 1;
+
+out:
+	bpf_ringbuf_discard_dynptr(&ptr_buf, 0);
+	return XDP_DROP;
+}
+
+char memset_zero_data[] = "data to be zeroed";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_zero(void *ctx)
+{
+	__u32 data_sz = sizeof(memset_zero_data);
+	char zeroes[32] = {'\0'};
+	struct bpf_dynptr ptr;
+
+	err = bpf_dynptr_from_mem(memset_zero_data, data_sz, 0, &ptr);
+	err = err ?: bpf_dynptr_memset(&ptr, 0, data_sz, 0);
+	err = err ?: bpf_memcmp(zeroes, memset_zero_data, data_sz);
+
+	return 0;
+}
+
+#define DYNPTR_MEMSET_VAL 42
+
+char memset_notzero_data[] = "data to be overwritten";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_notzero(void *ctx)
+{
+	u32 data_sz = sizeof(memset_notzero_data);
+	struct bpf_dynptr ptr;
+	char expected[32];
+
+	__builtin_memset(expected, DYNPTR_MEMSET_VAL, data_sz);
+
+	err = bpf_dynptr_from_mem(memset_notzero_data, data_sz, 0, &ptr);
+	err = err ?: bpf_dynptr_memset(&ptr, 0, data_sz, DYNPTR_MEMSET_VAL);
+	err = err ?: bpf_memcmp(expected, memset_notzero_data, data_sz);
+
+	return 0;
+}
+
+char memset_zero_offset_data[] = "data to be zeroed partially";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_zero_offset(void *ctx)
+{
+	char expected[] = "data to \0\0\0\0eroed partially";
+	__u32 data_sz = sizeof(memset_zero_offset_data);
+	struct bpf_dynptr ptr;
+
+	err = bpf_dynptr_from_mem(memset_zero_offset_data, data_sz, 0, &ptr);
+	err = err ?: bpf_dynptr_memset(&ptr, 8, 4, 0);
+	err = err ?: bpf_memcmp(expected, memset_zero_offset_data, data_sz);
+
+	return 0;
+}
+
+char memset_zero_adjusted_data[] = "data to be zeroed partially";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_zero_adjusted(void *ctx)
+{
+	char expected[] = "data\0\0\0\0be zeroed partially";
+	__u32 data_sz = sizeof(memset_zero_adjusted_data);
+	struct bpf_dynptr ptr;
+
+	err = bpf_dynptr_from_mem(memset_zero_adjusted_data, data_sz, 0, &ptr);
+	err = err ?: bpf_dynptr_adjust(&ptr, 4, 8);
+	err = err ?: bpf_dynptr_memset(&ptr, 0, bpf_dynptr_size(&ptr), 0);
+	err = err ?: bpf_memcmp(expected, memset_zero_adjusted_data, data_sz);
+
+	return 0;
+}
+
+char memset_overflow_data[] = "memset overflow data";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_overflow(void *ctx)
+{
+	__u32 data_sz = sizeof(memset_overflow_data);
+	struct bpf_dynptr ptr;
+	int ret;
+
+	err = bpf_dynptr_from_mem(memset_overflow_data, data_sz, 0, &ptr);
+	ret = bpf_dynptr_memset(&ptr, 0, data_sz + 1, 0);
+	if (ret != -E2BIG)
+		err = 1;
+
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int test_dynptr_memset_overflow_offset(void *ctx)
+{
+	__u32 data_sz = sizeof(memset_overflow_data);
+	struct bpf_dynptr ptr;
+	int ret;
+
+	err = bpf_dynptr_from_mem(memset_overflow_data, data_sz, 0, &ptr);
+	ret = bpf_dynptr_memset(&ptr, 1, data_sz, 0);
+	if (ret != -E2BIG)
+		err = 1;
+
+	return 0;
+}
+
+SEC("?cgroup_skb/egress")
+int test_dynptr_memset_readonly(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	int ret;
+
+	err = bpf_dynptr_from_skb(skb, 0, &ptr);
+
+	/* cgroup skbs are read only, memset should fail */
+	ret = bpf_dynptr_memset(&ptr, 0, bpf_dynptr_size(&ptr), 0);
+	if (ret != -EINVAL)
+		err = 1;
+
+	return 0;
+}
+
+#define min_t(type, x, y) ({		\
+	type __x = (x);			\
+	type __y = (y);			\
+	__x < __y ? __x : __y; })
+
+SEC("xdp")
+int test_dynptr_memset_xdp_chunks(struct xdp_md *xdp)
+{
+	u32 data_sz, chunk_sz, offset = 0;
+	const int max_chunks = 200;
+	struct bpf_dynptr ptr_xdp;
+	char expected_buf[32];
+	char buf[32];
+	int i;
+
+	__builtin_memset(expected_buf, DYNPTR_MEMSET_VAL, sizeof(expected_buf));
+
+	/* ptr_xdp is backed by non-contiguous memory */
+	bpf_dynptr_from_xdp(xdp, 0, &ptr_xdp);
+	data_sz = bpf_dynptr_size(&ptr_xdp);
+
+	err = bpf_dynptr_memset(&ptr_xdp, 0, data_sz, DYNPTR_MEMSET_VAL);
+	if (err) {
+		/* bpf_dynptr_memset() eventually called bpf_xdp_pointer()
+		 * where if data_sz is greater than 0xffff, -EFAULT will be
+		 * returned. For 64K page size, data_sz is greater than
+		 * 64K, so error is expected and let us zero out error and
+		 * return success.
+		 */
+		if (data_sz >= PAGE_SIZE_64K)
+			err = 0;
+		goto out;
+	}
+
+	bpf_for(i, 0, max_chunks) {
+		offset = i * sizeof(buf);
+		if (offset >= data_sz)
+			goto out;
+		chunk_sz = min_t(u32, sizeof(buf), data_sz - offset);
+		err = bpf_dynptr_read(&buf, chunk_sz, &ptr_xdp, offset, 0);
+		if (err)
+			goto out;
+		err = bpf_memcmp(buf, expected_buf, sizeof(buf));
+		if (err)
+			goto out;
+	}
+out:
+	return XDP_DROP;
+}
+
+void *user_ptr;
+/* Contains the copy of the data pointed by user_ptr.
+ * Size 384 to make it not fit into a single kernel chunk when copying
+ * but less than the maximum bpf stack size (512).
+ */
+char expected_str[384];
+__u32 test_len[7] = {0/* placeholder */, 0, 1, 2, 255, 256, 257};
+
+typedef int (*bpf_read_dynptr_fn_t)(struct bpf_dynptr *dptr, u64 off,
+				    u64 size, const void *unsafe_ptr);
+
+/* Returns the offset just before the end of the maximum sized xdp fragment.
+ * Any write larger than 32 bytes will be split between 2 fragments.
+ */
+__u32 xdp_near_frag_end_offset(void)
+{
+	const __u32 headroom = 256;
+	const __u32 max_frag_size =  __PAGE_SIZE - headroom - sizeof(struct skb_shared_info);
+
+	/* 32 bytes before the approximate end of the fragment */
+	return max_frag_size - 32;
+}
+
+/* Use __always_inline on test_dynptr_probe[_str][_xdp]() and callbacks
+ * of type bpf_read_dynptr_fn_t to prevent compiler from generating
+ * indirect calls that make program fail to load with "unknown opcode" error.
+ */
+static __always_inline void test_dynptr_probe(void *ptr, bpf_read_dynptr_fn_t bpf_read_dynptr_fn)
+{
+	char buf[sizeof(expected_str)];
+	struct bpf_dynptr ptr_buf;
+	int i;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	err = bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(buf), 0, &ptr_buf);
+
+	bpf_for(i, 0, ARRAY_SIZE(test_len)) {
+		__u32 len = test_len[i];
+
+		err = err ?: bpf_read_dynptr_fn(&ptr_buf, 0, test_len[i], ptr);
+		if (len > sizeof(buf))
+			break;
+		err = err ?: bpf_dynptr_read(&buf, len, &ptr_buf, 0, 0);
+
+		if (err || bpf_memcmp(expected_str, buf, len))
+			err = 1;
+
+		/* Reset buffer and dynptr */
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = err ?: bpf_dynptr_write(&ptr_buf, 0, buf, len, 0);
+	}
+	bpf_ringbuf_discard_dynptr(&ptr_buf, 0);
+}
+
+static __always_inline void test_dynptr_probe_str(void *ptr,
+						  bpf_read_dynptr_fn_t bpf_read_dynptr_fn)
+{
+	char buf[sizeof(expected_str)];
+	struct bpf_dynptr ptr_buf;
+	__u32 cnt, i;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	bpf_ringbuf_reserve_dynptr(&ringbuf, sizeof(buf), 0, &ptr_buf);
+
+	bpf_for(i, 0, ARRAY_SIZE(test_len)) {
+		__u32 len = test_len[i];
+
+		cnt = bpf_read_dynptr_fn(&ptr_buf, 0, len, ptr);
+		if (cnt != len)
+			err = 1;
+
+		if (len > sizeof(buf))
+			continue;
+		err = err ?: bpf_dynptr_read(&buf, len, &ptr_buf, 0, 0);
+		if (!len)
+			continue;
+		if (err || bpf_memcmp(expected_str, buf, len - 1) || buf[len - 1] != '\0')
+			err = 1;
+	}
+	bpf_ringbuf_discard_dynptr(&ptr_buf, 0);
+}
+
+static __always_inline void test_dynptr_probe_xdp(struct xdp_md *xdp, void *ptr,
+						  bpf_read_dynptr_fn_t bpf_read_dynptr_fn)
+{
+	struct bpf_dynptr ptr_xdp;
+	char buf[sizeof(expected_str)];
+	__u32 off, i;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	off = xdp_near_frag_end_offset();
+	err = bpf_dynptr_from_xdp(xdp, 0, &ptr_xdp);
+
+	bpf_for(i, 0, ARRAY_SIZE(test_len)) {
+		__u32 len = test_len[i];
+
+		err = err ?: bpf_read_dynptr_fn(&ptr_xdp, off, len, ptr);
+		if (len > sizeof(buf))
+			continue;
+		err = err ?: bpf_dynptr_read(&buf, len, &ptr_xdp, off, 0);
+		if (err || bpf_memcmp(expected_str, buf, len))
+			err = 1;
+		/* Reset buffer and dynptr */
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = err ?: bpf_dynptr_write(&ptr_xdp, off, buf, len, 0);
+	}
+}
+
+static __always_inline void test_dynptr_probe_str_xdp(struct xdp_md *xdp, void *ptr,
+						      bpf_read_dynptr_fn_t bpf_read_dynptr_fn)
+{
+	struct bpf_dynptr ptr_xdp;
+	char buf[sizeof(expected_str)];
+	__u32 cnt, off, i;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	off = xdp_near_frag_end_offset();
+	err = bpf_dynptr_from_xdp(xdp, 0, &ptr_xdp);
+	if (err)
+		return;
+
+	bpf_for(i, 0, ARRAY_SIZE(test_len)) {
+		__u32 len = test_len[i];
+
+		cnt = bpf_read_dynptr_fn(&ptr_xdp, off, len, ptr);
+		if (cnt != len)
+			err = 1;
+
+		if (len > sizeof(buf))
+			continue;
+		err = err ?: bpf_dynptr_read(&buf, len, &ptr_xdp, off, 0);
+
+		if (!len)
+			continue;
+		if (err || bpf_memcmp(expected_str, buf, len - 1) || buf[len - 1] != '\0')
+			err = 1;
+
+		__builtin_memset(buf, 0, sizeof(buf));
+		err = err ?: bpf_dynptr_write(&ptr_xdp, off, buf, len, 0);
+	}
+}
+
+SEC("xdp")
+int test_probe_read_user_dynptr(struct xdp_md *xdp)
+{
+	test_dynptr_probe(user_ptr, bpf_probe_read_user_dynptr);
+	if (!err)
+		test_dynptr_probe_xdp(xdp, user_ptr, bpf_probe_read_user_dynptr);
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int test_probe_read_kernel_dynptr(struct xdp_md *xdp)
+{
+	test_dynptr_probe(expected_str, bpf_probe_read_kernel_dynptr);
+	if (!err)
+		test_dynptr_probe_xdp(xdp, expected_str, bpf_probe_read_kernel_dynptr);
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int test_probe_read_user_str_dynptr(struct xdp_md *xdp)
+{
+	test_dynptr_probe_str(user_ptr, bpf_probe_read_user_str_dynptr);
+	if (!err)
+		test_dynptr_probe_str_xdp(xdp, user_ptr, bpf_probe_read_user_str_dynptr);
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int test_probe_read_kernel_str_dynptr(struct xdp_md *xdp)
+{
+	test_dynptr_probe_str(expected_str, bpf_probe_read_kernel_str_dynptr);
+	if (!err)
+		test_dynptr_probe_str_xdp(xdp, expected_str, bpf_probe_read_kernel_str_dynptr);
+	return XDP_PASS;
+}
+
+SEC("fentry.s/" SYS_PREFIX "sys_nanosleep")
+int test_copy_from_user_dynptr(void *ctx)
+{
+	test_dynptr_probe(user_ptr, bpf_copy_from_user_dynptr);
+	return 0;
+}
+
+SEC("fentry.s/" SYS_PREFIX "sys_nanosleep")
+int test_copy_from_user_str_dynptr(void *ctx)
+{
+	test_dynptr_probe_str(user_ptr, bpf_copy_from_user_str_dynptr);
+	return 0;
+}
+
+static int bpf_copy_data_from_user_task(struct bpf_dynptr *dptr, u64 off,
+					u64 size, const void *unsafe_ptr)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+
+	return bpf_copy_from_user_task_dynptr(dptr, off, size, unsafe_ptr, task);
+}
+
+static int bpf_copy_data_from_user_task_str(struct bpf_dynptr *dptr, u64 off,
+					    u64 size, const void *unsafe_ptr)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+
+	return bpf_copy_from_user_task_str_dynptr(dptr, off, size, unsafe_ptr, task);
+}
+
+SEC("fentry.s/" SYS_PREFIX "sys_nanosleep")
+int test_copy_from_user_task_dynptr(void *ctx)
+{
+	test_dynptr_probe(user_ptr, bpf_copy_data_from_user_task);
+	return 0;
+}
+
+SEC("fentry.s/" SYS_PREFIX "sys_nanosleep")
+int test_copy_from_user_task_str_dynptr(void *ctx)
+{
+	test_dynptr_probe_str(user_ptr, bpf_copy_data_from_user_task_str);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/empty_skb.c b/tools/testing/selftests/bpf/progs/empty_skb.c
new file mode 100644
index 000000000000..4b0cd6753251
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/empty_skb.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+int ifindex;
+int ret;
+
+SEC("lwt_xmit")
+int redirect_ingress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS);
+	return 0;
+}
+
+SEC("lwt_xmit")
+int redirect_egress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, 0);
+	return 0;
+}
+
+SEC("tc")
+int tc_redirect_ingress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, BPF_F_INGRESS);
+	return 0;
+}
+
+SEC("tc")
+int tc_redirect_egress(struct __sk_buff *skb)
+{
+	ret = bpf_clone_redirect(skb, ifindex, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/epilogue_exit.c b/tools/testing/selftests/bpf/progs/epilogue_exit.c
new file mode 100644
index 000000000000..35fec7c75bef
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/epilogue_exit.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__success
+/* save __u64 *ctx to stack */
+__xlated("0: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("1: r1 = *(u64 *)(r1 +0)")
+__xlated("2: r2 = *(u64 *)(r1 +0)")
+__xlated("3: r3 = 0")
+__xlated("4: r4 = 1")
+__xlated("5: if r2 == 0x0 goto pc+10")
+__xlated("6: r0 = 0")
+__xlated("7: *(u64 *)(r1 +0) = r3")
+/* epilogue */
+__xlated("8: r1 = *(u64 *)(r10 -8)")
+__xlated("9: r1 = *(u64 *)(r1 +0)")
+__xlated("10: r6 = *(u64 *)(r1 +0)")
+__xlated("11: r6 += 10000")
+__xlated("12: *(u64 *)(r1 +0) = r6")
+__xlated("13: r0 = r6")
+__xlated("14: r0 *= 2")
+__xlated("15: exit")
+/* 2nd part of the main prog after the first exit */
+__xlated("16: *(u64 *)(r1 +0) = r4")
+__xlated("17: r0 = 1")
+/* Clear the r1 to ensure it does not have
+ * off-by-1 error and ensure it jumps back to the
+ * beginning of epilogue which initializes
+ * the r1 with the ctx ptr.
+ */
+__xlated("18: r1 = 0")
+__xlated("19: gotol pc-12")
+SEC("struct_ops/test_epilogue_exit")
+__naked int test_epilogue_exit(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r1 +0);"
+	"r2 = *(u64 *)(r1 +0);"
+	"r3 = 0;"
+	"r4 = 1;"
+	"if r2 == 0 goto +3;"
+	"r0 = 0;"
+	"*(u64 *)(r1 + 0) = r3;"
+	"exit;"
+	"*(u64 *)(r1 + 0) = r4;"
+	"r0 = 1;"
+	"r1 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops epilogue_exit = {
+	.test_epilogue = (void *)test_epilogue_exit,
+};
+
+SEC("syscall")
+__retval(20000)
+int syscall_epilogue_exit0(void *ctx)
+{
+	struct st_ops_args args = { .a = 1 };
+
+	return bpf_kfunc_st_ops_test_epilogue(&args);
+}
+
+SEC("syscall")
+__retval(20002)
+int syscall_epilogue_exit1(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_epilogue(&args);
+}
diff --git a/tools/testing/selftests/bpf/progs/epilogue_tailcall.c b/tools/testing/selftests/bpf/progs/epilogue_tailcall.c
new file mode 100644
index 000000000000..153514691ba4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/epilogue_tailcall.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+static __noinline __used int subprog(struct st_ops_args *args)
+{
+	args->a += 1;
+	return args->a;
+}
+
+SEC("struct_ops/test_epilogue_subprog")
+int BPF_PROG(test_epilogue_subprog, struct st_ops_args *args)
+{
+	subprog(args);
+	return args->a;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+	__array(values, void (void));
+} epilogue_map SEC(".maps") = {
+	.values = {
+		[0] = (void *)&test_epilogue_subprog,
+	}
+};
+
+SEC("struct_ops/test_epilogue_tailcall")
+int test_epilogue_tailcall(unsigned long long *ctx)
+{
+	bpf_tail_call(ctx, &epilogue_map, 0);
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops epilogue_tailcall = {
+	.test_epilogue = (void *)test_epilogue_tailcall,
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops epilogue_subprog = {
+	.test_epilogue = (void *)test_epilogue_subprog,
+};
+
+SEC("syscall")
+int syscall_epilogue_tailcall(struct st_ops_args *args)
+{
+	return bpf_kfunc_st_ops_test_epilogue(args);
+}
diff --git a/tools/testing/selftests/bpf/progs/err.h b/tools/testing/selftests/bpf/progs/err.h
new file mode 100644
index 000000000000..38529779a236
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/err.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ERR_H__
+#define __ERR_H__
+
+#define MAX_ERRNO 4095
+#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
+
+#define __STR(x) #x
+
+#define set_if_not_errno_or_zero(x, y)			\
+({							\
+	asm volatile ("if %0 s< -4095 goto +1\n"	\
+		      "if %0 s<= 0 goto +1\n"		\
+		      "%0 = " __STR(y) "\n"		\
+		      : "+r"(x));			\
+})
+
+static inline int IS_ERR_OR_NULL(const void *ptr)
+{
+	return !ptr || IS_ERR_VALUE((unsigned long)ptr);
+}
+
+static inline long PTR_ERR(const void *ptr)
+{
+	return (long) ptr;
+}
+
+#endif /* __ERR_H__ */
diff --git a/tools/testing/selftests/bpf/progs/exceptions.c b/tools/testing/selftests/bpf/progs/exceptions.c
new file mode 100644
index 000000000000..f09cd14d8e04
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/exceptions.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+#ifndef ETH_P_IP
+#define ETH_P_IP 0x0800
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 4);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+static __noinline int static_func(u64 i)
+{
+	bpf_throw(32);
+	return i;
+}
+
+__noinline int global2static_simple(u64 i)
+{
+	static_func(i + 2);
+	return i - 1;
+}
+
+__noinline int global2static(u64 i)
+{
+	if (i == ETH_P_IP)
+		bpf_throw(16);
+	return static_func(i);
+}
+
+static __noinline int static2global(u64 i)
+{
+	return global2static(i) + i;
+}
+
+SEC("tc")
+int exception_throw_always_1(struct __sk_buff *ctx)
+{
+	bpf_throw(64);
+	return 0;
+}
+
+/* In this case, the global func will never be seen executing after call to
+ * static subprog, hence verifier will DCE the remaining instructions. Ensure we
+ * are resilient to that.
+ */
+SEC("tc")
+int exception_throw_always_2(struct __sk_buff *ctx)
+{
+	return global2static_simple(ctx->protocol);
+}
+
+SEC("tc")
+int exception_throw_unwind_1(struct __sk_buff *ctx)
+{
+	return static2global(bpf_ntohs(ctx->protocol));
+}
+
+SEC("tc")
+int exception_throw_unwind_2(struct __sk_buff *ctx)
+{
+	return static2global(bpf_ntohs(ctx->protocol) - 1);
+}
+
+SEC("tc")
+int exception_throw_default(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 1;
+}
+
+SEC("tc")
+int exception_throw_default_value(struct __sk_buff *ctx)
+{
+	bpf_throw(5);
+	return 1;
+}
+
+SEC("tc")
+int exception_tail_call_target(struct __sk_buff *ctx)
+{
+	bpf_throw(16);
+	return 0;
+}
+
+static __noinline
+int exception_tail_call_subprog(struct __sk_buff *ctx)
+{
+	volatile int ret = 10;
+
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return ret;
+}
+
+SEC("tc")
+int exception_tail_call(struct __sk_buff *ctx) {
+	volatile int ret = 0;
+
+	ret = exception_tail_call_subprog(ctx);
+	return ret + 8;
+}
+
+__noinline int exception_ext_global(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	return ret;
+}
+
+static __noinline int exception_ext_static(struct __sk_buff *ctx)
+{
+	return exception_ext_global(ctx);
+}
+
+SEC("tc")
+int exception_ext(struct __sk_buff *ctx)
+{
+	return exception_ext_static(ctx);
+}
+
+__noinline int exception_cb_mod_global(u64 cookie)
+{
+	volatile int ret = 0;
+
+	return ret;
+}
+
+/* Example of how the exception callback supplied during verification can still
+ * introduce extensions by calling to dummy global functions, and alter runtime
+ * behavior.
+ *
+ * Right now we don't allow freplace attachment to exception callback itself,
+ * but if the need arises this restriction is technically feasible to relax in
+ * the future.
+ */
+__noinline int exception_cb_mod(u64 cookie)
+{
+	return exception_cb_mod_global(cookie) + cookie + 10;
+}
+
+SEC("tc")
+__exception_cb(exception_cb_mod)
+int exception_ext_mod_cb_runtime(struct __sk_buff *ctx)
+{
+	bpf_throw(25);
+	return 0;
+}
+
+__noinline static int subprog(struct __sk_buff *ctx)
+{
+	return bpf_ktime_get_ns();
+}
+
+__noinline static int throwing_subprog(struct __sk_buff *ctx)
+{
+	if (ctx->tstamp)
+		bpf_throw(0);
+	return bpf_ktime_get_ns();
+}
+
+__noinline int global_subprog(struct __sk_buff *ctx)
+{
+	return bpf_ktime_get_ns();
+}
+
+__noinline int throwing_global_subprog(struct __sk_buff *ctx)
+{
+	if (ctx->tstamp)
+		bpf_throw(0);
+	return bpf_ktime_get_ns();
+}
+
+SEC("tc")
+int exception_throw_subprog(struct __sk_buff *ctx)
+{
+	switch (ctx->protocol) {
+	case 1:
+		return subprog(ctx);
+	case 2:
+		return global_subprog(ctx);
+	case 3:
+		return throwing_subprog(ctx);
+	case 4:
+		return throwing_global_subprog(ctx);
+	default:
+		break;
+	}
+	bpf_throw(1);
+	return 0;
+}
+
+__noinline int assert_nz_gfunc(u64 c)
+{
+	volatile u64 cookie = c;
+
+	bpf_assert(cookie != 0);
+	return 0;
+}
+
+__noinline int assert_zero_gfunc(u64 c)
+{
+	volatile u64 cookie = c;
+
+	bpf_assert(bpf_cmp_unlikely(cookie, ==, 0));
+	return 0;
+}
+
+__noinline int assert_neg_gfunc(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert(bpf_cmp_unlikely(cookie, <, 0));
+	return 0;
+}
+
+__noinline int assert_pos_gfunc(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert(bpf_cmp_unlikely(cookie, >, 0));
+	return 0;
+}
+
+__noinline int assert_negeq_gfunc(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert(bpf_cmp_unlikely(cookie, <=, -1));
+	return 0;
+}
+
+__noinline int assert_poseq_gfunc(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert(bpf_cmp_unlikely(cookie, >=, 1));
+	return 0;
+}
+
+__noinline int assert_nz_gfunc_with(u64 c)
+{
+	volatile u64 cookie = c;
+
+	bpf_assert_with(cookie != 0, cookie + 100);
+	return 0;
+}
+
+__noinline int assert_zero_gfunc_with(u64 c)
+{
+	volatile u64 cookie = c;
+
+	bpf_assert_with(bpf_cmp_unlikely(cookie, ==, 0), cookie + 100);
+	return 0;
+}
+
+__noinline int assert_neg_gfunc_with(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert_with(bpf_cmp_unlikely(cookie, <, 0), cookie + 100);
+	return 0;
+}
+
+__noinline int assert_pos_gfunc_with(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert_with(bpf_cmp_unlikely(cookie, >, 0), cookie + 100);
+	return 0;
+}
+
+__noinline int assert_negeq_gfunc_with(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert_with(bpf_cmp_unlikely(cookie, <=, -1), cookie + 100);
+	return 0;
+}
+
+__noinline int assert_poseq_gfunc_with(s64 c)
+{
+	volatile s64 cookie = c;
+
+	bpf_assert_with(bpf_cmp_unlikely(cookie, >=, 1), cookie + 100);
+	return 0;
+}
+
+#define check_assert(name, cookie, tag)				\
+SEC("tc")							\
+int exception##tag##name(struct __sk_buff *ctx)			\
+{								\
+	return name(cookie) + 1;				\
+}
+
+check_assert(assert_nz_gfunc, 5, _);
+check_assert(assert_zero_gfunc, 0, _);
+check_assert(assert_neg_gfunc, -100, _);
+check_assert(assert_pos_gfunc, 100, _);
+check_assert(assert_negeq_gfunc, -1, _);
+check_assert(assert_poseq_gfunc, 1, _);
+
+check_assert(assert_nz_gfunc_with, 5, _);
+check_assert(assert_zero_gfunc_with, 0, _);
+check_assert(assert_neg_gfunc_with, -100, _);
+check_assert(assert_pos_gfunc_with, 100, _);
+check_assert(assert_negeq_gfunc_with, -1, _);
+check_assert(assert_poseq_gfunc_with, 1, _);
+
+check_assert(assert_nz_gfunc, 0, _bad_);
+check_assert(assert_zero_gfunc, 5, _bad_);
+check_assert(assert_neg_gfunc, 100, _bad_);
+check_assert(assert_pos_gfunc, -100, _bad_);
+check_assert(assert_negeq_gfunc, 1, _bad_);
+check_assert(assert_poseq_gfunc, -1, _bad_);
+
+check_assert(assert_nz_gfunc_with, 0, _bad_);
+check_assert(assert_zero_gfunc_with, 5, _bad_);
+check_assert(assert_neg_gfunc_with, 100, _bad_);
+check_assert(assert_pos_gfunc_with, -100, _bad_);
+check_assert(assert_negeq_gfunc_with, 1, _bad_);
+check_assert(assert_poseq_gfunc_with, -1, _bad_);
+
+SEC("tc")
+int exception_assert_range(struct __sk_buff *ctx)
+{
+	u64 time = bpf_ktime_get_ns();
+
+	bpf_assert_range(time, 0, ~0ULL);
+	return 1;
+}
+
+SEC("tc")
+int exception_assert_range_with(struct __sk_buff *ctx)
+{
+	u64 time = bpf_ktime_get_ns();
+
+	bpf_assert_range_with(time, 0, ~0ULL, 10);
+	return 1;
+}
+
+SEC("tc")
+int exception_bad_assert_range(struct __sk_buff *ctx)
+{
+	u64 time = bpf_ktime_get_ns();
+
+	bpf_assert_range(time, -100, 100);
+	return 1;
+}
+
+SEC("tc")
+int exception_bad_assert_range_with(struct __sk_buff *ctx)
+{
+	u64 time = bpf_ktime_get_ns();
+
+	bpf_assert_range_with(time, -1000, 1000, 10);
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/exceptions_assert.c b/tools/testing/selftests/bpf/progs/exceptions_assert.c
new file mode 100644
index 000000000000..a01c2736890f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/exceptions_assert.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <limits.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+#define check_assert(type, op, name, value)				\
+	SEC("?tc")							\
+	__log_level(2) __failure					\
+	int check_assert_##name(void *ctx)				\
+	{								\
+		type num = bpf_ktime_get_ns();				\
+		bpf_assert(bpf_cmp_unlikely(num, op, value));		\
+		return *(u64 *)num;					\
+	}
+
+__msg(": R0=0xffffffff80000000")
+check_assert(s64, ==, eq_int_min, INT_MIN);
+__msg(": R0=0x7fffffff")
+check_assert(s64, ==, eq_int_max, INT_MAX);
+__msg(": R0=0")
+check_assert(s64, ==, eq_zero, 0);
+__msg(": R0=0x8000000000000000 R1=0x8000000000000000")
+check_assert(s64, ==, eq_llong_min, LLONG_MIN);
+__msg(": R0=0x7fffffffffffffff R1=0x7fffffffffffffff")
+check_assert(s64, ==, eq_llong_max, LLONG_MAX);
+
+__msg(": R0=scalar(id=1,smax=0x7ffffffe)")
+check_assert(s64, <, lt_pos, INT_MAX);
+__msg(": R0=scalar(id=1,smax=-1,umin=0x8000000000000000,var_off=(0x8000000000000000; 0x7fffffffffffffff))")
+check_assert(s64, <, lt_zero, 0);
+__msg(": R0=scalar(id=1,smax=0xffffffff7fffffff")
+check_assert(s64, <, lt_neg, INT_MIN);
+
+__msg(": R0=scalar(id=1,smax=0x7fffffff)")
+check_assert(s64, <=, le_pos, INT_MAX);
+__msg(": R0=scalar(id=1,smax=0)")
+check_assert(s64, <=, le_zero, 0);
+__msg(": R0=scalar(id=1,smax=0xffffffff80000000")
+check_assert(s64, <=, le_neg, INT_MIN);
+
+__msg(": R0=scalar(id=1,smin=umin=0x80000000,umax=0x7fffffffffffffff,var_off=(0x0; 0x7fffffffffffffff))")
+check_assert(s64, >, gt_pos, INT_MAX);
+__msg(": R0=scalar(id=1,smin=umin=1,umax=0x7fffffffffffffff,var_off=(0x0; 0x7fffffffffffffff))")
+check_assert(s64, >, gt_zero, 0);
+__msg(": R0=scalar(id=1,smin=0xffffffff80000001")
+check_assert(s64, >, gt_neg, INT_MIN);
+
+__msg(": R0=scalar(id=1,smin=umin=0x7fffffff,umax=0x7fffffffffffffff,var_off=(0x0; 0x7fffffffffffffff))")
+check_assert(s64, >=, ge_pos, INT_MAX);
+__msg(": R0=scalar(id=1,smin=0,umax=0x7fffffffffffffff,var_off=(0x0; 0x7fffffffffffffff))")
+check_assert(s64, >=, ge_zero, 0);
+__msg(": R0=scalar(id=1,smin=0xffffffff80000000")
+check_assert(s64, >=, ge_neg, INT_MIN);
+
+SEC("?tc")
+__log_level(2) __failure
+__msg(": R0=0 R1=ctx() R2=scalar(smin=0xffffffff80000002,smax=smax32=0x7ffffffd,smin32=0x80000002) R10=fp0")
+int check_assert_range_s64(struct __sk_buff *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	s64 num;
+
+	_Static_assert(_Generic((sk->rx_queue_mapping), s32: 1, default: 0), "type match");
+	if (!sk)
+		return 0;
+	num = sk->rx_queue_mapping;
+	bpf_assert_range(num, INT_MIN + 2, INT_MAX - 2);
+	return *((u8 *)ctx + num);
+}
+
+SEC("?tc")
+__log_level(2) __failure
+__msg(": R1=ctx() R2=scalar(smin=umin=smin32=umin32=4096,smax=umax=smax32=umax32=8192,var_off=(0x0; 0x3fff))")
+int check_assert_range_u64(struct __sk_buff *ctx)
+{
+	u64 num = ctx->len;
+
+	bpf_assert_range(num, 4096, 8192);
+	return *((u8 *)ctx + num);
+}
+
+SEC("?tc")
+__log_level(2) __failure
+__msg(": R0=0 R1=ctx() R2=4096 R10=fp0")
+int check_assert_single_range_s64(struct __sk_buff *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	s64 num;
+
+	_Static_assert(_Generic((sk->rx_queue_mapping), s32: 1, default: 0), "type match");
+	if (!sk)
+		return 0;
+	num = sk->rx_queue_mapping;
+
+	bpf_assert_range(num, 4096, 4096);
+	return *((u8 *)ctx + num);
+}
+
+SEC("?tc")
+__log_level(2) __failure
+__msg(": R1=ctx() R2=4096 R10=fp0")
+int check_assert_single_range_u64(struct __sk_buff *ctx)
+{
+	u64 num = ctx->len;
+
+	bpf_assert_range(num, 4096, 4096);
+	return *((u8 *)ctx + num);
+}
+
+SEC("?tc")
+__log_level(2) __failure
+__msg(": R1=pkt(off=64,r=64) R2=pkt_end() R6=pkt(r=64) R10=fp0")
+int check_assert_generic(struct __sk_buff *ctx)
+{
+	u8 *data_end = (void *)(long)ctx->data_end;
+	u8 *data = (void *)(long)ctx->data;
+
+	bpf_assert(data + 64 <= data_end);
+	return data[128];
+}
+
+SEC("?fentry/bpf_check")
+__failure __msg("At program exit the register R1 has smin=64 smax=64")
+int check_assert_with_return(void *ctx)
+{
+	bpf_assert_with(!ctx, 64);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/exceptions_ext.c b/tools/testing/selftests/bpf/progs/exceptions_ext.c
new file mode 100644
index 000000000000..743c05185d9b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/exceptions_ext.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+
+SEC("?fentry")
+int pfentry(void *ctx)
+{
+	return 0;
+}
+
+SEC("?fentry")
+int throwing_fentry(void *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline int exception_cb(u64 cookie)
+{
+	return cookie + 64;
+}
+
+SEC("?freplace")
+int extension(struct __sk_buff *ctx)
+{
+	return 0;
+}
+
+SEC("?freplace")
+__exception_cb(exception_cb)
+int throwing_exception_cb_extension(u64 cookie)
+{
+	bpf_throw(32);
+	return 0;
+}
+
+SEC("?freplace")
+__exception_cb(exception_cb)
+int throwing_extension(struct __sk_buff *ctx)
+{
+	bpf_throw(64);
+	return 0;
+}
+
+SEC("?fexit")
+int pfexit(void *ctx)
+{
+	return 0;
+}
+
+SEC("?fexit")
+int throwing_fexit(void *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?fmod_ret")
+int pfmod_ret(void *ctx)
+{
+	return 0;
+}
+
+SEC("?fmod_ret")
+int throwing_fmod_ret(void *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/exceptions_fail.c b/tools/testing/selftests/bpf/progs/exceptions_fail.c
new file mode 100644
index 000000000000..8a0fdff89927
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/exceptions_fail.c
@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+extern void bpf_rcu_read_lock(void) __ksym;
+
+#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
+
+struct foo {
+	struct bpf_rb_node node;
+};
+
+struct hmap_elem {
+	struct bpf_timer timer;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 64);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap SEC(".maps");
+
+private(A) struct bpf_spin_lock lock;
+private(A) struct bpf_rb_root rbtree __contains(foo, node);
+
+__noinline void *exception_cb_bad_ret_type(u64 cookie)
+{
+	return NULL;
+}
+
+__noinline int exception_cb_bad_arg_0(void)
+{
+	return 0;
+}
+
+__noinline int exception_cb_bad_arg_2(int a, int b)
+{
+	return 0;
+}
+
+__noinline int exception_cb_ok_arg_small(int a)
+{
+	return 0;
+}
+
+SEC("?tc")
+__exception_cb(exception_cb_bad_ret_type)
+__failure __msg("Global function exception_cb_bad_ret_type() doesn't return scalar.")
+int reject_exception_cb_type_1(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__exception_cb(exception_cb_bad_arg_0)
+__failure __msg("exception cb only supports single integer argument")
+int reject_exception_cb_type_2(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__exception_cb(exception_cb_bad_arg_2)
+__failure __msg("exception cb only supports single integer argument")
+int reject_exception_cb_type_3(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__exception_cb(exception_cb_ok_arg_small)
+__success
+int reject_exception_cb_type_4(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline
+static int timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot be called from callback subprog")
+int reject_async_callback_throw(struct __sk_buff *ctx)
+{
+	struct hmap_elem *elem;
+
+	elem = bpf_map_lookup_elem(&hmap, &(int){0});
+	if (!elem)
+		return 0;
+	return bpf_timer_set_callback(&elem->timer, timer_cb);
+}
+
+__noinline static int subprog_lock(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_spin_lock(&lock);
+	if (ctx->len)
+		bpf_throw(0);
+	return ret;
+}
+
+SEC("?tc")
+__failure __msg("function calls are not allowed while holding a lock")
+int reject_with_lock(void *ctx)
+{
+	bpf_spin_lock(&lock);
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("function calls are not allowed while holding a lock")
+int reject_subprog_with_lock(void *ctx)
+{
+	return subprog_lock(ctx);
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_rcu_read_lock-ed region")
+int reject_with_rcu_read_lock(void *ctx)
+{
+	bpf_rcu_read_lock();
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline static int throwing_subprog(struct __sk_buff *ctx)
+{
+	if (ctx->len)
+		bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_rcu_read_lock-ed region")
+int reject_subprog_with_rcu_read_lock(void *ctx)
+{
+	bpf_rcu_read_lock();
+	return throwing_subprog(ctx);
+}
+
+static bool rbless(struct bpf_rb_node *n1, const struct bpf_rb_node *n2)
+{
+	bpf_throw(0);
+	return true;
+}
+
+SEC("?tc")
+__failure __msg("function calls are not allowed while holding a lock")
+int reject_with_rbtree_add_throw(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&lock);
+	bpf_rbtree_add(&rbtree, &f->node, rbless);
+	bpf_spin_unlock(&lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference")
+int reject_with_reference(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline static int subprog_ref(struct __sk_buff *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline static int subprog_cb_ref(u32 i, void *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference")
+int reject_with_cb_reference(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_loop(5, subprog_cb_ref, NULL, 0);
+	bpf_obj_drop(f);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot be called from callback")
+int reject_with_cb(void *ctx)
+{
+	bpf_loop(5, subprog_cb_ref, NULL, 0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference")
+int reject_with_subprog_reference(void *ctx)
+{
+	return subprog_ref(ctx) + 1;
+}
+
+__noinline int throwing_exception_cb(u64 c)
+{
+	bpf_throw(0);
+	return c;
+}
+
+__noinline int exception_cb1(u64 c)
+{
+	return c;
+}
+
+__noinline int exception_cb2(u64 c)
+{
+	return c;
+}
+
+static __noinline int static_func(struct __sk_buff *ctx)
+{
+	return exception_cb1(ctx->tstamp);
+}
+
+__noinline int global_func(struct __sk_buff *ctx)
+{
+	return exception_cb1(ctx->tstamp);
+}
+
+SEC("?tc")
+__exception_cb(throwing_exception_cb)
+__failure __msg("cannot be called from callback subprog")
+int reject_throwing_exception_cb(struct __sk_buff *ctx)
+{
+	return 0;
+}
+
+SEC("?tc")
+__exception_cb(exception_cb1)
+__failure __msg("cannot call exception cb directly")
+int reject_exception_cb_call_global_func(struct __sk_buff *ctx)
+{
+	return global_func(ctx);
+}
+
+SEC("?tc")
+__exception_cb(exception_cb1)
+__failure __msg("cannot call exception cb directly")
+int reject_exception_cb_call_static_func(struct __sk_buff *ctx)
+{
+	return static_func(ctx);
+}
+
+SEC("?tc")
+__exception_cb(exception_cb1)
+__exception_cb(exception_cb2)
+__failure __msg("multiple exception callback tags for main subprog")
+int reject_multiple_exception_cb(struct __sk_buff *ctx)
+{
+	bpf_throw(0);
+	return 16;
+}
+
+__noinline int exception_cb_bad_ret(u64 c)
+{
+	return c;
+}
+
+SEC("?fentry/bpf_check")
+__exception_cb(exception_cb_bad_ret)
+__failure __msg("At program exit the register R0 has unknown scalar value should")
+int reject_set_exception_cb_bad_ret1(void *ctx)
+{
+	return 0;
+}
+
+SEC("?fentry/bpf_check")
+__failure __msg("At program exit the register R1 has smin=64 smax=64 should")
+int reject_set_exception_cb_bad_ret2(void *ctx)
+{
+	bpf_throw(64);
+	return 0;
+}
+
+__noinline static int loop_cb1(u32 index, int *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+__noinline static int loop_cb2(u32 index, int *ctx)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot be called from callback")
+int reject_exception_throw_cb(struct __sk_buff *ctx)
+{
+	bpf_loop(5, loop_cb1, NULL, 0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot be called from callback")
+int reject_exception_throw_cb_diff(struct __sk_buff *ctx)
+{
+	if (ctx->protocol)
+		bpf_loop(5, loop_cb1, NULL, 0);
+	else
+		bpf_loop(5, loop_cb2, NULL, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/exhandler_kern.c b/tools/testing/selftests/bpf/progs/exhandler_kern.c
new file mode 100644
index 000000000000..20d009e2d266
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/exhandler_kern.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021, Oracle and/or its affiliates. */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+unsigned int exception_triggered;
+int test_pid;
+
+/* TRACE_EVENT(task_newtask,
+ *         TP_PROTO(struct task_struct *p, u64 clone_flags)
+ */
+SEC("tp_btf/task_newtask")
+int BPF_PROG(trace_task_newtask, struct task_struct *task, u64 clone_flags)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+	struct callback_head *work;
+	void *func;
+
+	if (test_pid != pid)
+		return 0;
+
+	/* To verify we hit an exception we dereference task->task_works->func.
+	 * If task work has been added,
+	 * - task->task_works is non-NULL; and
+	 * - task->task_works->func is non-NULL also (the callback function
+	 *   must be specified for the task work.
+	 *
+	 * However, for a newly-created task, task->task_works is NULLed,
+	 * so we know the exception handler triggered if task_works is
+	 * NULL and func is NULL.
+	 */
+	work = task->task_works;
+	func = work->func;
+	/* Currently verifier will fail for `btf_ptr |= btf_ptr` * instruction.
+	 * To workaround the issue, use barrier_var() and rewrite as below to
+	 * prevent compiler from generating verifier-unfriendly code.
+	 */
+	barrier_var(work);
+	if (work)
+		return 0;
+	barrier_var(func);
+	if (func)
+		return 0;
+	exception_triggered++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fd_htab_lookup.c b/tools/testing/selftests/bpf/progs/fd_htab_lookup.c
new file mode 100644
index 000000000000..a4a9e1db626f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fd_htab_lookup.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct inner_map_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+} inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 64);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct inner_map_type);
+} outer_map SEC(".maps") = {
+	.values = {
+		[0] = &inner_map,
+	},
+};
diff --git a/tools/testing/selftests/bpf/progs/fentry_many_args.c b/tools/testing/selftests/bpf/progs/fentry_many_args.c
new file mode 100644
index 000000000000..b61bb92fee2c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fentry_many_args.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Tencent */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_result = 0;
+SEC("fentry/bpf_testmod_fentry_test7")
+int BPF_PROG(test1, __u64 a, void *b, short c, int d, void *e, char f,
+	     int g)
+{
+	test1_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21 && g == 22;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fentry/bpf_testmod_fentry_test11")
+int BPF_PROG(test2, __u64 a, void *b, short c, int d, void *e, char f,
+	     int g, unsigned int h, long i, __u64 j, unsigned long k)
+{
+	test2_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21 && g == 22 && h == 23 &&
+		i == 24 && j == 25 && k == 26;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("fentry/bpf_testmod_fentry_test11")
+int BPF_PROG(test3, __u64 a, __u64 b, __u64 c, __u64 d, __u64 e, __u64 f,
+	     __u64 g, __u64 h, __u64 i, __u64 j, __u64 k)
+{
+	test3_result = a == 16 && b == 17 && c == 18 && d == 19 &&
+		e == 20 && f == 21 && g == 22 && h == 23 &&
+		i == 24 && j == 25 && k == 26;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fentry_recursive.c b/tools/testing/selftests/bpf/progs/fentry_recursive.c
new file mode 100644
index 000000000000..2c9fb5ac42b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fentry_recursive.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Red Hat, Inc. */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Dummy fentry bpf prog for testing fentry attachment chains */
+SEC("fentry/XXX")
+int BPF_PROG(recursive_attach, int a)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fentry_recursive_target.c b/tools/testing/selftests/bpf/progs/fentry_recursive_target.c
new file mode 100644
index 000000000000..267c876d0aba
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fentry_recursive_target.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Red Hat, Inc. */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Dummy fentry bpf prog for testing fentry attachment chains. It's going to be
+ * a start of the chain.
+ */
+SEC("fentry/bpf_testmod_fentry_test1")
+int BPF_PROG(test1, int a)
+{
+	return 0;
+}
+
+/* Dummy bpf prog for testing attach_btf presence when attaching an fentry
+ * program.
+ */
+SEC("raw_tp/sys_enter")
+int BPF_PROG(fentry_target, struct pt_regs *regs, long id)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fentry_test.c b/tools/testing/selftests/bpf/progs/fentry_test.c
new file mode 100644
index 000000000000..52a550d281d9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fentry_test.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_result = 0;
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test1, int a)
+{
+	test1_result = a == 1;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fentry/bpf_fentry_test2")
+int BPF_PROG(test2, int a, __u64 b)
+{
+	test2_result = a == 2 && b == 3;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("fentry/bpf_fentry_test3")
+int BPF_PROG(test3, char a, int b, __u64 c)
+{
+	test3_result = a == 4 && b == 5 && c == 6;
+	return 0;
+}
+
+__u64 test4_result = 0;
+SEC("fentry/bpf_fentry_test4")
+int BPF_PROG(test4, void *a, char b, int c, __u64 d)
+{
+	test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10;
+	return 0;
+}
+
+__u64 test5_result = 0;
+SEC("fentry/bpf_fentry_test5")
+int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e)
+{
+	test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&
+		e == 15;
+	return 0;
+}
+
+__u64 test6_result = 0;
+SEC("fentry/bpf_fentry_test6")
+int BPF_PROG(test6, __u64 a, void *b, short c, int d, void * e, __u64 f)
+{
+	test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21;
+	return 0;
+}
+
+struct bpf_fentry_test_t {
+	struct bpf_fentry_test_t *a;
+};
+
+__u64 test7_result = 0;
+SEC("fentry/bpf_fentry_test7")
+int BPF_PROG(test7, struct bpf_fentry_test_t *arg)
+{
+	if (!arg)
+		test7_result = 1;
+	return 0;
+}
+
+__u64 test8_result = 0;
+SEC("fentry/bpf_fentry_test8")
+int BPF_PROG(test8, struct bpf_fentry_test_t *arg)
+{
+	if (arg->a == 0)
+		test8_result = 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c
new file mode 100644
index 000000000000..983b7c233382
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <linux/stddef.h>
+#include <linux/if_ether.h>
+#include <linux/ipv6.h>
+#include <linux/bpf.h>
+#include <linux/tcp.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+
+struct sk_buff {
+	unsigned int len;
+};
+
+__u64 test_result = 0;
+SEC("fexit/test_pkt_access")
+int BPF_PROG(test_main, struct sk_buff *skb, int ret)
+{
+	int len;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+	}));
+	if (len != 74 || ret != 0)
+		return 0;
+	test_result = 1;
+	return 0;
+}
+
+__u64 test_result_subprog1 = 0;
+SEC("fexit/test_pkt_access_subprog1")
+int BPF_PROG(test_subprog1, struct sk_buff *skb, int ret)
+{
+	int len;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+	}));
+	if (len != 74 || ret != 148)
+		return 0;
+	test_result_subprog1 = 1;
+	return 0;
+}
+
+/* Though test_pkt_access_subprog2() is defined in C as:
+ * static __attribute__ ((noinline))
+ * int test_pkt_access_subprog2(int val, volatile struct __sk_buff *skb)
+ * {
+ *     return skb->len * val;
+ * }
+ * llvm optimizations remove 'int val' argument and generate BPF assembly:
+ *   r0 = *(u32 *)(r1 + 0)
+ *   w0 <<= 1
+ *   exit
+ * In such case the verifier falls back to conservative and
+ * tracing program can access arguments and return value as u64
+ * instead of accurate types.
+ */
+struct args_subprog2 {
+	__u64 args[5];
+	__u64 ret;
+};
+__u64 test_result_subprog2 = 0;
+SEC("fexit/test_pkt_access_subprog2")
+int test_subprog2(struct args_subprog2 *ctx)
+{
+	struct sk_buff *skb = (void *)ctx->args[0];
+	__u64 ret;
+	int len;
+
+	bpf_probe_read_kernel(&len, sizeof(len),
+			      __builtin_preserve_access_index(&skb->len));
+
+	ret = ctx->ret;
+	/* bpf_prog_test_load() loads "test_pkt_access.bpf.o" with
+	 * BPF_F_TEST_RND_HI32 which randomizes upper 32 bits after BPF_ALU32
+	 * insns. Hence after 'w0 <<= 1' upper bits of $rax are random. That is
+	 * expected and correct. Trim them.
+	 */
+	ret = (__u32) ret;
+	if (len != 74 || ret != 148)
+		return 0;
+	test_result_subprog2 = 1;
+	return 0;
+}
+
+__u64 test_result_subprog3 = 0;
+SEC("fexit/test_pkt_access_subprog3")
+int BPF_PROG(test_subprog3, int val, struct sk_buff *skb, int ret)
+{
+	int len;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+	}));
+	if (len != 74 || ret != 74 * val || val != 3)
+		return 0;
+	test_result_subprog3 = 1;
+	return 0;
+}
+
+__u64 test_get_skb_len = 0;
+SEC("freplace/get_skb_len")
+int new_get_skb_len(struct __sk_buff *skb)
+{
+	int len = skb->len;
+
+	if (len != 74)
+		return 0;
+	test_get_skb_len = 1;
+	return 74; /* original get_skb_len() returns skb->len */
+}
+
+__u64 test_get_skb_ifindex = 0;
+SEC("freplace/get_skb_ifindex")
+int new_get_skb_ifindex(int val, struct __sk_buff *skb, int var)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ipv6hdr ip6, *ip6p;
+	int ifindex = skb->ifindex;
+
+	/* check that BPF extension can read packet via direct packet access */
+	if (data + 14 + sizeof(ip6) > data_end)
+		return 0;
+	ip6p = data + 14;
+
+	if (ip6p->nexthdr != 6 || ip6p->payload_len != __bpf_constant_htons(123))
+		return 0;
+
+	/* check that legacy packet access helper works too */
+	if (bpf_skb_load_bytes(skb, 14, &ip6, sizeof(ip6)) < 0)
+		return 0;
+	ip6p = &ip6;
+	if (ip6p->nexthdr != 6 || ip6p->payload_len != __bpf_constant_htons(123))
+		return 0;
+
+	if (ifindex != 1 || val != 3 || var != 1)
+		return 0;
+	test_get_skb_ifindex = 1;
+	return 3; /* original get_skb_ifindex() returns val * ifindex * var */
+}
+
+volatile __u64 test_get_constant = 0;
+SEC("freplace/get_constant")
+int new_get_constant(long val)
+{
+	if (val != 123)
+		return 0;
+	test_get_constant = 1;
+	return test_get_constant; /* original get_constant() returns val - 122 */
+}
+
+__u64 test_pkt_write_access_subprog = 0;
+SEC("freplace/test_pkt_write_access_subprog")
+int new_test_pkt_write_access_subprog(struct __sk_buff *skb, __u32 off)
+{
+
+	void *data = (void *)(long)skb->data;
+	void *data_end = (void *)(long)skb->data_end;
+	struct tcphdr *tcp;
+
+	if (off > sizeof(struct ethhdr) + sizeof(struct ipv6hdr))
+		return -1;
+
+	tcp = data + off;
+	if (tcp + 1 > data_end)
+		return -1;
+
+	/* make modifications to the packet data */
+	tcp->check++;
+	tcp->syn = 0;
+
+	test_pkt_write_access_subprog = 1;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c
new file mode 100644
index 000000000000..85c0b516d6ee
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_bpf2bpf_simple.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct sk_buff {
+	unsigned int len;
+};
+
+__u64 test_result = 0;
+
+SEC("fexit/test_pkt_md_access")
+int BPF_PROG(test_main2, struct sk_buff *skb, int ret)
+{
+	int len;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+	}));
+	if (len != 74 || ret != 0)
+		return 0;
+
+	test_result = 1;
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/fexit_many_args.c b/tools/testing/selftests/bpf/progs/fexit_many_args.c
new file mode 100644
index 000000000000..53b335c2dafb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_many_args.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Tencent */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_result = 0;
+SEC("fexit/bpf_testmod_fentry_test7")
+int BPF_PROG(test1, __u64 a, void *b, short c, int d, void *e, char f,
+	     int g, int ret)
+{
+	test1_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21 && g == 22 && ret == 133;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fexit/bpf_testmod_fentry_test11")
+int BPF_PROG(test2, __u64 a, void *b, short c, int d, void *e, char f,
+	     int g, unsigned int h, long i, __u64 j, unsigned long k,
+	     int ret)
+{
+	test2_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21 && g == 22 && h == 23 &&
+		i == 24 && j == 25 && k == 26 && ret == 231;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("fexit/bpf_testmod_fentry_test11")
+int BPF_PROG(test3, __u64 a, __u64 b, __u64 c, __u64 d, __u64 e, __u64 f,
+	     __u64 g, __u64 h, __u64 i, __u64 j, __u64 k, __u64 ret)
+{
+	test3_result = a == 16 && b == 17 && c == 18 && d == 19 &&
+		e == 20 && f == 21 && g == 22 && h == 23 &&
+		i == 24 && j == 25 && k == 26 && ret == 231;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fexit_sleep.c b/tools/testing/selftests/bpf/progs/fexit_sleep.c
new file mode 100644
index 000000000000..106dc75efcc4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_sleep.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char LICENSE[] SEC("license") = "GPL";
+
+int pid = 0;
+int fentry_cnt = 0;
+int fexit_cnt = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int nanosleep_fentry(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	fentry_cnt++;
+	return 0;
+}
+
+SEC("fexit/" SYS_PREFIX "sys_nanosleep")
+int nanosleep_fexit(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	fexit_cnt++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fexit_test.c b/tools/testing/selftests/bpf/progs/fexit_test.c
new file mode 100644
index 000000000000..8f1ccb7302e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fexit_test.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_result = 0;
+SEC("fexit/bpf_fentry_test1")
+int BPF_PROG(test1, int a, int ret)
+{
+	test1_result = a == 1 && ret == 2;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fexit/bpf_fentry_test2")
+int BPF_PROG(test2, int a, __u64 b, int ret)
+{
+	test2_result = a == 2 && b == 3 && ret == 5;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("fexit/bpf_fentry_test3")
+int BPF_PROG(test3, char a, int b, __u64 c, int ret)
+{
+	test3_result = a == 4 && b == 5 && c == 6 && ret == 15;
+	return 0;
+}
+
+__u64 test4_result = 0;
+SEC("fexit/bpf_fentry_test4")
+int BPF_PROG(test4, void *a, char b, int c, __u64 d, int ret)
+{
+	test4_result = a == (void *)7 && b == 8 && c == 9 && d == 10 &&
+		ret == 34;
+	return 0;
+}
+
+__u64 test5_result = 0;
+SEC("fexit/bpf_fentry_test5")
+int BPF_PROG(test5, __u64 a, void *b, short c, int d, __u64 e, int ret)
+{
+	test5_result = a == 11 && b == (void *)12 && c == 13 && d == 14 &&
+		e == 15 && ret == 65;
+	return 0;
+}
+
+__u64 test6_result = 0;
+SEC("fexit/bpf_fentry_test6")
+int BPF_PROG(test6, __u64 a, void *b, short c, int d, void *e, __u64 f, int ret)
+{
+	test6_result = a == 16 && b == (void *)17 && c == 18 && d == 19 &&
+		e == (void *)20 && f == 21 && ret == 111;
+	return 0;
+}
+
+struct bpf_fentry_test_t {
+	struct bpf_fentry_test *a;
+};
+
+__u64 test7_result = 0;
+SEC("fexit/bpf_fentry_test7")
+int BPF_PROG(test7, struct bpf_fentry_test_t *arg)
+{
+	if (!arg)
+		test7_result = 1;
+	return 0;
+}
+
+__u64 test8_result = 0;
+SEC("fexit/bpf_fentry_test8")
+int BPF_PROG(test8, struct bpf_fentry_test_t *arg)
+{
+	if (!arg->a)
+		test8_result = 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fib_lookup.c b/tools/testing/selftests/bpf/progs/fib_lookup.c
new file mode 100644
index 000000000000..7b5dd2214ff4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fib_lookup.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/types.h>
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+#include <bpf/bpf_helpers.h>
+
+struct bpf_fib_lookup fib_params = {};
+int fib_lookup_ret = 0;
+int lookup_flags = 0;
+
+SEC("tc")
+int fib_lookup(struct __sk_buff *skb)
+{
+	fib_lookup_ret = bpf_fib_lookup(skb, &fib_params, sizeof(fib_params),
+					lookup_flags);
+
+	return TC_ACT_SHOT;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/file_reader.c b/tools/testing/selftests/bpf/progs/file_reader.c
new file mode 100644
index 000000000000..4d756b623557
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/file_reader.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "errno.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} arrmap SEC(".maps");
+
+struct elem {
+	struct file *file;
+	struct bpf_task_work tw;
+};
+
+char user_buf[256000];
+char tmp_buf[256000];
+
+int pid = 0;
+int err, run_success = 0;
+
+static int validate_file_read(struct file *file);
+static int task_work_callback(struct bpf_map *map, void *key, void *value);
+
+SEC("lsm/file_open")
+int on_open_expect_fault(void *c)
+{
+	struct bpf_dynptr dynptr;
+	struct file *file;
+	int local_err = 1;
+	__u32 user_buf_sz = sizeof(user_buf);
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	file = bpf_get_task_exe_file(bpf_get_current_task_btf());
+	if (!file)
+		return 0;
+
+	if (bpf_dynptr_from_file(file, 0, &dynptr))
+		goto out;
+
+	local_err = bpf_dynptr_read(tmp_buf, user_buf_sz, &dynptr, user_buf_sz, 0);
+	if (local_err == -EFAULT) { /* Expect page fault */
+		local_err = 0;
+		run_success = 1;
+	}
+out:
+	bpf_dynptr_file_discard(&dynptr);
+	if (local_err)
+		err = local_err;
+	bpf_put_file(file);
+	return 0;
+}
+
+SEC("lsm/file_open")
+int on_open_validate_file_read(void *c)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct elem *work;
+	int key = 0;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	work = bpf_map_lookup_elem(&arrmap, &key);
+	if (!work) {
+		err = 1;
+		return 0;
+	}
+	bpf_task_work_schedule_signal_impl(task, &work->tw, &arrmap, task_work_callback, NULL);
+	return 0;
+}
+
+/* Called in a sleepable context, read 256K bytes, cross check with user space read data */
+static int task_work_callback(struct bpf_map *map, void *key, void *value)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct file *file = bpf_get_task_exe_file(task);
+
+	if (!file)
+		return 0;
+
+	err = validate_file_read(file);
+	if (!err)
+		run_success = 1;
+	bpf_put_file(file);
+	return 0;
+}
+
+static int verify_dynptr_read(struct bpf_dynptr *ptr, u32 off, char *user_buf, u32 len)
+{
+	int i;
+
+	if (bpf_dynptr_read(tmp_buf, len, ptr, off, 0))
+		return 1;
+
+	/* Verify file contents read from BPF is the same as the one read from userspace */
+	bpf_for(i, 0, len)
+	{
+		if (tmp_buf[i] != user_buf[i])
+			return 1;
+	}
+	return 0;
+}
+
+static int validate_file_read(struct file *file)
+{
+	struct bpf_dynptr dynptr;
+	int loc_err = 1, off;
+	__u32 user_buf_sz = sizeof(user_buf);
+
+	if (bpf_dynptr_from_file(file, 0, &dynptr))
+		goto cleanup;
+
+	loc_err = verify_dynptr_read(&dynptr, 0, user_buf, user_buf_sz);
+	off = 1;
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, user_buf_sz - off);
+	off = user_buf_sz - 1;
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, user_buf_sz - off);
+	/* Read file with random offset and length */
+	off = 4097;
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, off, user_buf + off, 100);
+
+	/* Adjust dynptr, verify read */
+	loc_err = loc_err ?: bpf_dynptr_adjust(&dynptr, off, off + 1);
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, 0, user_buf + off, 1);
+	/* Can't read more than 1 byte */
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, 0, user_buf + off, 2) == 0;
+	/* Can't read with far offset */
+	loc_err = loc_err ?: verify_dynptr_read(&dynptr, 1, user_buf + off, 1) == 0;
+
+cleanup:
+	bpf_dynptr_file_discard(&dynptr);
+	return loc_err;
+}
diff --git a/tools/testing/selftests/bpf/progs/file_reader_fail.c b/tools/testing/selftests/bpf/progs/file_reader_fail.c
new file mode 100644
index 000000000000..32fe28ed2439
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/file_reader_fail.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int err;
+void *user_ptr;
+
+SEC("lsm/file_open")
+__failure
+__msg("Unreleased reference id=")
+int on_nanosleep_unreleased_ref(void *ctx)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct file *file = bpf_get_task_exe_file(task);
+	struct bpf_dynptr dynptr;
+
+	if (!file)
+		return 0;
+
+	err = bpf_dynptr_from_file(file, 0, &dynptr);
+	return err ? 1 : 0;
+}
+
+SEC("xdp")
+__failure
+__msg("Expected a dynptr of type file as arg #0")
+int xdp_wrong_dynptr_type(struct xdp_md *xdp)
+{
+	struct bpf_dynptr dynptr;
+
+	bpf_dynptr_from_xdp(xdp, 0, &dynptr);
+	bpf_dynptr_file_discard(&dynptr);
+	return 0;
+}
+
+SEC("xdp")
+__failure
+__msg("Expected an initialized dynptr as arg #0")
+int xdp_no_dynptr_type(struct xdp_md *xdp)
+{
+	struct bpf_dynptr dynptr;
+
+	bpf_dynptr_file_discard(&dynptr);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/find_vma.c b/tools/testing/selftests/bpf/progs/find_vma.c
new file mode 100644
index 000000000000..02b82774469c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/find_vma.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct callback_ctx {
+	int dummy;
+};
+
+#define VM_EXEC		0x00000004
+#define DNAME_INLINE_LEN 32
+
+pid_t target_pid = 0;
+char d_iname[DNAME_INLINE_LEN] = {0};
+__u32 found_vm_exec = 0;
+__u64 addr = 0;
+int find_zero_ret = -1;
+int find_addr_ret = -1;
+
+static long check_vma(struct task_struct *task, struct vm_area_struct *vma,
+		      struct callback_ctx *data)
+{
+	if (vma->vm_file)
+		bpf_probe_read_kernel_str(d_iname, DNAME_INLINE_LEN - 1,
+					  vma->vm_file->f_path.dentry->d_shortname.string);
+
+	/* check for VM_EXEC */
+	if (vma->vm_flags & VM_EXEC)
+		found_vm_exec = 1;
+
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handle_getpid(void)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct callback_ctx data = {};
+
+	if (task->pid != target_pid)
+		return 0;
+
+	find_addr_ret = bpf_find_vma(task, addr, check_vma, &data, 0);
+
+	/* this should return -ENOENT */
+	find_zero_ret = bpf_find_vma(task, 0, check_vma, &data, 0);
+	return 0;
+}
+
+SEC("perf_event")
+int handle_pe(void)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct callback_ctx data = {};
+
+	if (task->pid != target_pid)
+		return 0;
+
+	find_addr_ret = bpf_find_vma(task, addr, check_vma, &data, 0);
+
+	/* In NMI, this should return -EBUSY, as the previous call is using
+	 * the irq_work.
+	 */
+	find_zero_ret = bpf_find_vma(task, 0, check_vma, &data, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/find_vma_fail1.c b/tools/testing/selftests/bpf/progs/find_vma_fail1.c
new file mode 100644
index 000000000000..7ba9a428f228
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/find_vma_fail1.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#define vm_flags vm_start
+
+char _license[] SEC("license") = "GPL";
+
+struct callback_ctx {
+	int dummy;
+};
+
+static long write_vma(struct task_struct *task, struct vm_area_struct *vma,
+		      struct callback_ctx *data)
+{
+	/* writing to vma, which is illegal */
+	vma->vm_start = 0xffffffffff600000;
+
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handle_getpid(void)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct callback_ctx data = {};
+
+	bpf_find_vma(task, 0, write_vma, &data, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/find_vma_fail2.c b/tools/testing/selftests/bpf/progs/find_vma_fail2.c
new file mode 100644
index 000000000000..9bcf3203e26b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/find_vma_fail2.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct callback_ctx {
+	int dummy;
+};
+
+static long write_task(struct task_struct *task, struct vm_area_struct *vma,
+		       struct callback_ctx *data)
+{
+	/* writing to task, which is illegal */
+	task->mm = NULL;
+
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handle_getpid(void)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct callback_ctx data = {};
+
+	bpf_find_vma(task, 0, write_task, &data, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/fmod_ret_freplace.c b/tools/testing/selftests/bpf/progs/fmod_ret_freplace.c
new file mode 100644
index 000000000000..c8943ccee6c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/fmod_ret_freplace.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+volatile __u64 test_fmod_ret = 0;
+SEC("fmod_ret/security_new_get_constant")
+int BPF_PROG(fmod_ret_test, long val, int ret)
+{
+	test_fmod_ret = 1;
+	return 120;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/for_each_array_map_elem.c b/tools/testing/selftests/bpf/progs/for_each_array_map_elem.c
new file mode 100644
index 000000000000..52f6995ff29c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/for_each_array_map_elem.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u64);
+} arraymap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} percpu_map SEC(".maps");
+
+struct callback_ctx {
+	int output;
+};
+
+const volatile int bypass_unused = 1;
+
+static __u64
+unused_subprog(struct bpf_map *map, __u32 *key, __u64 *val,
+	       struct callback_ctx *data)
+{
+	data->output = 0;
+	return 1;
+}
+
+static __u64
+check_array_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+		 struct callback_ctx *data)
+{
+	data->output += *val;
+	if (*key == 1)
+		return 1; /* stop the iteration */
+	return 0;
+}
+
+__u32 cpu = 0;
+__u64 percpu_val = 0;
+
+static __u64
+check_percpu_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+		  struct callback_ctx *data)
+{
+	cpu = bpf_get_smp_processor_id();
+	percpu_val = *val;
+	return 0;
+}
+
+u32 arraymap_output = 0;
+
+SEC("tc")
+int test_pkt_access(struct __sk_buff *skb)
+{
+	struct callback_ctx data;
+
+	data.output = 0;
+	bpf_for_each_map_elem(&arraymap, check_array_elem, &data, 0);
+	if (!bypass_unused)
+		bpf_for_each_map_elem(&arraymap, unused_subprog, &data, 0);
+	arraymap_output = data.output;
+
+	bpf_for_each_map_elem(&percpu_map, check_percpu_elem, (void *)0, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/for_each_hash_map_elem.c b/tools/testing/selftests/bpf/progs/for_each_hash_map_elem.c
new file mode 100644
index 000000000000..276994d5c0c7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/for_each_hash_map_elem.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u64);
+} hashmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} percpu_map SEC(".maps");
+
+struct callback_ctx {
+	struct __sk_buff *ctx;
+	int input;
+	int output;
+};
+
+static __u64
+check_hash_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+		struct callback_ctx *data)
+{
+	struct __sk_buff *skb = data->ctx;
+	__u32 k;
+	__u64 v;
+
+	if (skb) {
+		k = *key;
+		v = *val;
+		if (skb->len == 10000 && k == 10 && v == 10)
+			data->output = 3; /* impossible path */
+		else
+			data->output = 4;
+	} else {
+		data->output = data->input;
+		bpf_map_delete_elem(map, key);
+	}
+
+	return 0;
+}
+
+__u32 cpu = 0;
+__u32 percpu_called = 0;
+__u32 percpu_key = 0;
+__u64 percpu_val = 0;
+int percpu_output = 0;
+
+static __u64
+check_percpu_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+		  struct callback_ctx *unused)
+{
+	struct callback_ctx data;
+
+	percpu_called++;
+	cpu = bpf_get_smp_processor_id();
+	percpu_key = *key;
+	percpu_val = *val;
+
+	data.ctx = 0;
+	data.input = 100;
+	data.output = 0;
+	bpf_for_each_map_elem(&hashmap, check_hash_elem, &data, 0);
+	percpu_output = data.output;
+
+	return 0;
+}
+
+int hashmap_output = 0;
+int hashmap_elems = 0;
+int percpu_map_elems = 0;
+
+SEC("tc")
+int test_pkt_access(struct __sk_buff *skb)
+{
+	struct callback_ctx data;
+
+	data.ctx = skb;
+	data.input = 10;
+	data.output = 0;
+	hashmap_elems = bpf_for_each_map_elem(&hashmap, check_hash_elem, &data, 0);
+	hashmap_output = data.output;
+
+	percpu_map_elems = bpf_for_each_map_elem(&percpu_map, check_percpu_elem,
+						 (void *)0, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/for_each_hash_modify.c b/tools/testing/selftests/bpf/progs/for_each_hash_modify.c
new file mode 100644
index 000000000000..82307166f789
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/for_each_hash_modify.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Intel Corporation */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 128);
+	__type(key, __u64);
+	__type(value, __u64);
+} hashmap SEC(".maps");
+
+static int cb(struct bpf_map *map, __u64 *key, __u64 *val, void *arg)
+{
+	bpf_map_delete_elem(map, key);
+	bpf_map_update_elem(map, key, val, 0);
+	return 0;
+}
+
+SEC("tc")
+int test_pkt_access(struct __sk_buff *skb)
+{
+	(void)skb;
+
+	bpf_for_each_map_elem(&hashmap, cb, NULL, 0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/for_each_map_elem_write_key.c b/tools/testing/selftests/bpf/progs/for_each_map_elem_write_key.c
new file mode 100644
index 000000000000..8e545865ea33
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/for_each_map_elem_write_key.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} array_map SEC(".maps");
+
+static __u64
+check_array_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+		 void *data)
+{
+	bpf_get_current_comm(key, sizeof(*key));
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int test_map_key_write(const void *ctx)
+{
+	bpf_for_each_map_elem(&array_map, check_array_elem, NULL, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/for_each_multi_maps.c b/tools/testing/selftests/bpf/progs/for_each_multi_maps.c
new file mode 100644
index 000000000000..ff0bed7d4459
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/for_each_multi_maps.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u64);
+} arraymap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 5);
+	__type(key, __u32);
+	__type(value, __u64);
+} hashmap SEC(".maps");
+
+struct callback_ctx {
+	int output;
+};
+
+u32 data_output = 0;
+int use_array = 0;
+
+static __u64
+check_map_elem(struct bpf_map *map, __u32 *key, __u64 *val,
+	       struct callback_ctx *data)
+{
+	data->output += *val;
+	return 0;
+}
+
+SEC("tc")
+int test_pkt_access(struct __sk_buff *skb)
+{
+	struct callback_ctx data;
+
+	data.output = 0;
+	if (use_array)
+		bpf_for_each_map_elem(&arraymap, check_map_elem, &data, 0);
+	else
+		bpf_for_each_map_elem(&hashmap, check_map_elem, &data, 0);
+	data_output = data.output;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/free_timer.c b/tools/testing/selftests/bpf/progs/free_timer.c
new file mode 100644
index 000000000000..4501ae8fc414
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/free_timer.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <time.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#define MAX_ENTRIES 8
+
+struct map_value {
+	struct bpf_timer timer;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, MAX_ENTRIES);
+} map SEC(".maps");
+
+static int timer_cb(void *map, void *key, struct map_value *value)
+{
+	volatile int sum = 0;
+	int i;
+
+	bpf_for(i, 0, 1024 * 1024) sum += i;
+
+	return 0;
+}
+
+static int start_cb(int key)
+{
+	struct map_value *value;
+
+	value = bpf_map_lookup_elem(&map, (void *)&key);
+	if (!value)
+		return 0;
+
+	bpf_timer_init(&value->timer, &map, CLOCK_MONOTONIC);
+	bpf_timer_set_callback(&value->timer, timer_cb);
+	/* Hope 100us will be enough to wake-up and run the overwrite thread */
+	bpf_timer_start(&value->timer, 100000, BPF_F_TIMER_CPU_PIN);
+
+	return 0;
+}
+
+static int overwrite_cb(int key)
+{
+	struct map_value zero = {};
+
+	/* Free the timer which may run on other CPU */
+	bpf_map_update_elem(&map, (void *)&key, &zero, BPF_ANY);
+
+	return 0;
+}
+
+SEC("syscall")
+int BPF_PROG(start_timer)
+{
+	bpf_loop(MAX_ENTRIES, start_cb, NULL, 0);
+	return 0;
+}
+
+SEC("syscall")
+int BPF_PROG(overwrite_timer)
+{
+	bpf_loop(MAX_ENTRIES, overwrite_cb, NULL, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_attach_probe.c b/tools/testing/selftests/bpf/progs/freplace_attach_probe.c
new file mode 100644
index 000000000000..370a0e1922e0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_attach_probe.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/ptrace.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define VAR_NUM 2
+
+struct hmap_elem {
+	struct bpf_spin_lock lock;
+	int var[VAR_NUM];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct hmap_elem);
+} hash_map SEC(".maps");
+
+SEC("freplace/handle_kprobe")
+int new_handle_kprobe(struct pt_regs *ctx)
+{
+	struct hmap_elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&hash_map, &key);
+	if (!val)
+		return 1;
+	/* spin_lock in hash map */
+	bpf_spin_lock(&val->lock);
+	val->var[0] = 99;
+	bpf_spin_unlock(&val->lock);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_cls_redirect.c b/tools/testing/selftests/bpf/progs/freplace_cls_redirect.c
new file mode 100644
index 000000000000..7e94412d47a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_cls_redirect.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 2);
+} sock_map SEC(".maps");
+
+SEC("freplace/cls_redirect")
+int freplace_cls_redirect_test(struct __sk_buff *skb)
+{
+	int ret = 0;
+	const int zero = 0;
+	struct bpf_sock *sk;
+
+	sk = bpf_map_lookup_elem(&sock_map, &zero);
+	if (!sk)
+		return TC_ACT_SHOT;
+
+	ret = bpf_map_update_elem(&sock_map, &zero, sk, 0);
+	bpf_sk_release(sk);
+
+	return ret == 0 ? TC_ACT_OK : TC_ACT_SHOT;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_connect4.c b/tools/testing/selftests/bpf/progs/freplace_connect4.c
new file mode 100644
index 000000000000..a0ae84230699
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_connect4.c
@@ -0,0 +1,18 @@
+#include <linux/stddef.h>
+#include <linux/ipv6.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("freplace/do_bind")
+int new_do_bind(struct bpf_sock_addr *ctx)
+{
+  struct sockaddr_in sa = {};
+
+  bpf_bind(ctx, (struct sockaddr *)&sa, sizeof(sa));
+  return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_connect_v4_prog.c b/tools/testing/selftests/bpf/progs/freplace_connect_v4_prog.c
new file mode 100644
index 000000000000..d09bbd8ae8a8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_connect_v4_prog.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/stddef.h>
+#include <linux/ipv6.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("freplace/connect_v4_prog")
+int new_connect_v4_prog(struct bpf_sock_addr *ctx)
+{
+	// return value that's in invalid range
+	return 255;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_dead_global_func.c b/tools/testing/selftests/bpf/progs/freplace_dead_global_func.c
new file mode 100644
index 000000000000..e6a75f86cac6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_dead_global_func.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("freplace")
+int freplace_prog(void)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_get_constant.c b/tools/testing/selftests/bpf/progs/freplace_get_constant.c
new file mode 100644
index 000000000000..705e4b64dfc2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_get_constant.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+volatile __u64 test_get_constant = 0;
+SEC("freplace/get_constant")
+int security_new_get_constant(long val)
+{
+	if (val != 123)
+		return 0;
+	test_get_constant = 1;
+	return test_get_constant; /* original get_constant() returns val - 122 */
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_global_func.c b/tools/testing/selftests/bpf/progs/freplace_global_func.c
new file mode 100644
index 000000000000..96cb61a6ce87
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_global_func.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__noinline
+int test_ctx_global_func(struct __sk_buff *skb)
+{
+	volatile int retval = 1;
+	return retval;
+}
+
+SEC("freplace/test_pkt_access")
+int new_test_pkt_access(struct __sk_buff *skb)
+{
+	return test_ctx_global_func(skb);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_progmap.c b/tools/testing/selftests/bpf/progs/freplace_progmap.c
new file mode 100644
index 000000000000..81b56b9aa7d6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_progmap.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CPUMAP);
+	__type(key, __u32);
+	__type(value, struct bpf_cpumap_val);
+	__uint(max_entries, 1);
+} cpu_map SEC(".maps");
+
+SEC("xdp/cpumap")
+int xdp_drop_prog(struct xdp_md *ctx)
+{
+	return XDP_DROP;
+}
+
+SEC("freplace")
+int xdp_cpumap_prog(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&cpu_map, 0, XDP_PASS);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/freplace_unreliable_prog.c b/tools/testing/selftests/bpf/progs/freplace_unreliable_prog.c
new file mode 100644
index 000000000000..624078abf3de
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/freplace_unreliable_prog.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+SEC("freplace/btf_unreliable_kprobe")
+/* context type is what BPF verifier expects for kprobe context, but target
+ * program has `stuct whatever *ctx` argument, so freplace operation will be
+ * rejected with the following message:
+ *
+ * arg0 replace_btf_unreliable_kprobe(struct pt_regs *) doesn't match btf_unreliable_kprobe(struct whatever *)
+ */
+int replace_btf_unreliable_kprobe(bpf_user_pt_regs_t *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/get_branch_snapshot.c b/tools/testing/selftests/bpf/progs/get_branch_snapshot.c
new file mode 100644
index 000000000000..511ac634eef0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/get_branch_snapshot.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_hits = 0;
+__u64 address_low = 0;
+__u64 address_high = 0;
+int wasted_entries = 0;
+long total_entries = 0;
+
+#define ENTRY_CNT 32
+struct perf_branch_entry entries[ENTRY_CNT] = {};
+
+static inline bool gbs_in_range(__u64 val)
+{
+	return (val >= address_low) && (val < address_high);
+}
+
+SEC("fexit/bpf_testmod_loop_test")
+int BPF_PROG(test1, int n, int ret)
+{
+	long i;
+
+	total_entries = bpf_get_branch_snapshot(entries, sizeof(entries), 0);
+	total_entries /= sizeof(struct perf_branch_entry);
+
+	for (i = 0; i < ENTRY_CNT; i++) {
+		if (i >= total_entries)
+			break;
+		if (gbs_in_range(entries[i].from) && gbs_in_range(entries[i].to))
+			test1_hits++;
+		else if (!test1_hits)
+			wasted_entries++;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c b/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c
new file mode 100644
index 000000000000..30fd504856c7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/get_cgroup_id_kern.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__u64 cg_id;
+__u64 expected_pid;
+
+SEC("tracepoint/syscalls/sys_enter_nanosleep")
+int trace(void *ctx)
+{
+	__u32 pid = bpf_get_current_pid_tgid();
+
+	if (expected_pid == pid)
+		cg_id = bpf_get_current_cgroup_id();
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/get_func_args_test.c b/tools/testing/selftests/bpf/progs/get_func_args_test.c
new file mode 100644
index 000000000000..e0f34a55e697
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/get_func_args_test.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <errno.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 test1_result = 0;
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test1)
+{
+	__u64 cnt = bpf_get_func_arg_cnt(ctx);
+	__u64 a = 0, z = 0, ret = 0;
+	__s64 err;
+
+	test1_result = cnt == 1;
+
+	/* valid arguments */
+	err = bpf_get_func_arg(ctx, 0, &a);
+
+	/* We need to cast access to traced function argument values with
+	 * proper type cast, because trampoline uses type specific instruction
+	 * to save it, like for 'int a' with 32-bit mov like:
+	 *
+	 *   mov %edi,-0x8(%rbp)
+	 *
+	 * so the upper 4 bytes are not zeroed.
+	 */
+	test1_result &= err == 0 && ((int) a == 1);
+
+	/* not valid argument */
+	err = bpf_get_func_arg(ctx, 1, &z);
+	test1_result &= err == -EINVAL;
+
+	/* return value fails in fentry */
+	err = bpf_get_func_ret(ctx, &ret);
+	test1_result &= err == -EOPNOTSUPP;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fexit/bpf_fentry_test2")
+int BPF_PROG(test2)
+{
+	__u64 cnt = bpf_get_func_arg_cnt(ctx);
+	__u64 a = 0, b = 0, z = 0, ret = 0;
+	__s64 err;
+
+	test2_result = cnt == 2;
+
+	/* valid arguments */
+	err = bpf_get_func_arg(ctx, 0, &a);
+	test2_result &= err == 0 && (int) a == 2;
+
+	err = bpf_get_func_arg(ctx, 1, &b);
+	test2_result &= err == 0 && b == 3;
+
+	/* not valid argument */
+	err = bpf_get_func_arg(ctx, 2, &z);
+	test2_result &= err == -EINVAL;
+
+	/* return value */
+	err = bpf_get_func_ret(ctx, &ret);
+	test2_result &= err == 0 && ret == 5;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("fmod_ret/bpf_modify_return_test")
+int BPF_PROG(fmod_ret_test, int _a, int *_b, int _ret)
+{
+	__u64 cnt = bpf_get_func_arg_cnt(ctx);
+	__u64 a = 0, b = 0, z = 0, ret = 0;
+	__s64 err;
+
+	test3_result = cnt == 2;
+
+	/* valid arguments */
+	err = bpf_get_func_arg(ctx, 0, &a);
+	test3_result &= err == 0 && ((int) a == 1);
+
+	err = bpf_get_func_arg(ctx, 1, &b);
+	test3_result &= err == 0 && ((int *) b == _b);
+
+	/* not valid argument */
+	err = bpf_get_func_arg(ctx, 2, &z);
+	test3_result &= err == -EINVAL;
+
+	/* return value */
+	err = bpf_get_func_ret(ctx, &ret);
+	test3_result &= err == 0 && ret == 0;
+
+	/* change return value, it's checked in fexit_test program */
+	return 1234;
+}
+
+__u64 test4_result = 0;
+SEC("fexit/bpf_modify_return_test")
+int BPF_PROG(fexit_test, int _a, int *_b, int _ret)
+{
+	__u64 cnt = bpf_get_func_arg_cnt(ctx);
+	__u64 a = 0, b = 0, z = 0, ret = 0;
+	__s64 err;
+
+	test4_result = cnt == 2;
+
+	/* valid arguments */
+	err = bpf_get_func_arg(ctx, 0, &a);
+	test4_result &= err == 0 && ((int) a == 1);
+
+	err = bpf_get_func_arg(ctx, 1, &b);
+	test4_result &= err == 0 && ((int *) b == _b);
+
+	/* not valid argument */
+	err = bpf_get_func_arg(ctx, 2, &z);
+	test4_result &= err == -EINVAL;
+
+	/* return value */
+	err = bpf_get_func_ret(ctx, &ret);
+	test4_result &= err == 0 && ret == 1234;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_test.c
new file mode 100644
index 000000000000..2011cacdeb18
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/get_func_ip_test.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+extern int bpf_fentry_test1(int a) __ksym;
+extern int bpf_modify_return_test(int a, int *b) __ksym;
+
+extern const void bpf_fentry_test2 __ksym;
+extern const void bpf_fentry_test3 __ksym;
+extern const void bpf_fentry_test4 __ksym;
+
+extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;
+
+/* This function is here to have CONFIG_X86_KERNEL_IBT
+ * used and added to object BTF.
+ */
+int unused(void)
+{
+	return CONFIG_X86_KERNEL_IBT ? 0 : 1;
+}
+
+__u64 test1_result = 0;
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test1, int a)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test1_result = (const void *) addr == &bpf_fentry_test1;
+	return 0;
+}
+
+__u64 test2_result = 0;
+SEC("fexit/bpf_fentry_test2")
+int BPF_PROG(test2, int a)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test2_result = (const void *) addr == &bpf_fentry_test2;
+	return 0;
+}
+
+__u64 test3_result = 0;
+SEC("kprobe/bpf_fentry_test3")
+int test3(struct pt_regs *ctx)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test3_result = (const void *) addr == &bpf_fentry_test3;
+	return 0;
+}
+
+__u64 test4_result = 0;
+SEC("kretprobe/bpf_fentry_test4")
+int BPF_KRETPROBE(test4)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test4_result = (const void *) addr == &bpf_fentry_test4;
+	return 0;
+}
+
+__u64 test5_result = 0;
+SEC("fmod_ret/bpf_modify_return_test")
+int BPF_PROG(test5, int a, int *b, int ret)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test5_result = (const void *) addr == &bpf_modify_return_test;
+	return ret;
+}
+
+__u64 test6_result = 0;
+SEC("?kprobe")
+int test6(struct pt_regs *ctx)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test6_result = (const void *) addr == 0;
+	return 0;
+}
+
+unsigned long uprobe_trigger;
+
+__u64 test7_result = 0;
+SEC("uprobe//proc/self/exe:uprobe_trigger")
+int BPF_UPROBE(test7)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test7_result = (const void *) addr == (const void *) uprobe_trigger;
+	return 0;
+}
+
+__u64 test8_result = 0;
+SEC("uretprobe//proc/self/exe:uprobe_trigger")
+int BPF_URETPROBE(test8, int ret)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test8_result = (const void *) addr == (const void *) uprobe_trigger;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/get_func_ip_uprobe_test.c b/tools/testing/selftests/bpf/progs/get_func_ip_uprobe_test.c
new file mode 100644
index 000000000000..052f8a4345a8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/get_func_ip_uprobe_test.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+unsigned long uprobe_trigger_body;
+
+__u64 test1_result = 0;
+SEC("uprobe//proc/self/exe:uprobe_trigger_body+1")
+int BPF_UPROBE(test1)
+{
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	test1_result = (const void *) addr == (const void *) uprobe_trigger_body + 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/getpeername4_prog.c b/tools/testing/selftests/bpf/progs/getpeername4_prog.c
new file mode 100644
index 000000000000..4c97208cd25d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getpeername4_prog.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+#define REWRITE_ADDRESS_IP4   0xc0a801fe // 192.168.1.254
+#define REWRITE_ADDRESS_PORT4 4040
+
+SEC("cgroup/getpeername4")
+int getpeername_v4_prog(struct bpf_sock_addr *ctx)
+{
+	ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4);
+	ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/getpeername6_prog.c b/tools/testing/selftests/bpf/progs/getpeername6_prog.c
new file mode 100644
index 000000000000..070e4d7f636c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getpeername6_prog.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+#define REWRITE_ADDRESS_IP6_0 0xfaceb00c
+#define REWRITE_ADDRESS_IP6_1 0x12345678
+#define REWRITE_ADDRESS_IP6_2 0x00000000
+#define REWRITE_ADDRESS_IP6_3 0x0000abcd
+
+#define REWRITE_ADDRESS_PORT6 6060
+
+SEC("cgroup/getpeername6")
+int getpeername_v6_prog(struct bpf_sock_addr *ctx)
+{
+	ctx->user_ip6[0] = bpf_htonl(REWRITE_ADDRESS_IP6_0);
+	ctx->user_ip6[1] = bpf_htonl(REWRITE_ADDRESS_IP6_1);
+	ctx->user_ip6[2] = bpf_htonl(REWRITE_ADDRESS_IP6_2);
+	ctx->user_ip6[3] = bpf_htonl(REWRITE_ADDRESS_IP6_3);
+	ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT6);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c b/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c
new file mode 100644
index 000000000000..5a76754f846b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getpeername_unix_prog.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite";
+
+SEC("cgroup/getpeername_unix")
+int getpeername_unix_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx);
+	struct sockaddr_un *sa_kern_unaddr;
+	__u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) +
+			  sizeof(SERVUN_REWRITE_ADDRESS) - 1;
+	int ret;
+
+	ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS,
+					 sizeof(SERVUN_REWRITE_ADDRESS) - 1);
+	if (ret)
+		return 1;
+
+	if (sa_kern->uaddrlen != unaddrlen)
+		return 1;
+
+	sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
+	if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
+			sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
+		return 1;
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/getsockname4_prog.c b/tools/testing/selftests/bpf/progs/getsockname4_prog.c
new file mode 100644
index 000000000000..e298487c6347
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getsockname4_prog.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+#define REWRITE_ADDRESS_IP4   0xc0a801fe // 192.168.1.254
+#define REWRITE_ADDRESS_PORT4 4040
+
+SEC("cgroup/getsockname4")
+int getsockname_v4_prog(struct bpf_sock_addr *ctx)
+{
+	ctx->user_ip4 = bpf_htonl(REWRITE_ADDRESS_IP4);
+	ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT4);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/getsockname6_prog.c b/tools/testing/selftests/bpf/progs/getsockname6_prog.c
new file mode 100644
index 000000000000..811d10cd5525
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getsockname6_prog.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+#define REWRITE_ADDRESS_IP6_0 0xfaceb00c
+#define REWRITE_ADDRESS_IP6_1 0x12345678
+#define REWRITE_ADDRESS_IP6_2 0x00000000
+#define REWRITE_ADDRESS_IP6_3 0x0000abcd
+
+#define REWRITE_ADDRESS_PORT6 6060
+
+SEC("cgroup/getsockname6")
+int getsockname_v6_prog(struct bpf_sock_addr *ctx)
+{
+	ctx->user_ip6[0] = bpf_htonl(REWRITE_ADDRESS_IP6_0);
+	ctx->user_ip6[1] = bpf_htonl(REWRITE_ADDRESS_IP6_1);
+	ctx->user_ip6[2] = bpf_htonl(REWRITE_ADDRESS_IP6_2);
+	ctx->user_ip6[3] = bpf_htonl(REWRITE_ADDRESS_IP6_3);
+	ctx->user_port = bpf_htons(REWRITE_ADDRESS_PORT6);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c b/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c
new file mode 100644
index 000000000000..7867113c696f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/getsockname_unix_prog.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite";
+
+SEC("cgroup/getsockname_unix")
+int getsockname_unix_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx);
+	struct sockaddr_un *sa_kern_unaddr;
+	__u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) +
+			  sizeof(SERVUN_REWRITE_ADDRESS) - 1;
+	int ret;
+
+	ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS,
+					 sizeof(SERVUN_REWRITE_ADDRESS) - 1);
+	if (ret)
+		return 1;
+
+	if (sa_kern->uaddrlen != unaddrlen)
+		return 1;
+
+	sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
+	if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
+			sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
+		return 1;
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/htab_mem_bench.c b/tools/testing/selftests/bpf/progs/htab_mem_bench.c
new file mode 100644
index 000000000000..b1b721b14d67
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/htab_mem_bench.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <stdbool.h>
+#include <errno.h>
+#include <linux/types.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define OP_BATCH 64
+
+struct update_ctx {
+	unsigned int from;
+	unsigned int step;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(key_size, 4);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} htab SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+unsigned char zeroed_value[4096];
+unsigned int nr_thread = 0;
+long op_cnt = 0;
+
+static int write_htab(unsigned int i, struct update_ctx *ctx, unsigned int flags)
+{
+	bpf_map_update_elem(&htab, &ctx->from, zeroed_value, flags);
+	ctx->from += ctx->step;
+
+	return 0;
+}
+
+static int overwrite_htab(unsigned int i, struct update_ctx *ctx)
+{
+	return write_htab(i, ctx, 0);
+}
+
+static int newwrite_htab(unsigned int i, struct update_ctx *ctx)
+{
+	return write_htab(i, ctx, BPF_NOEXIST);
+}
+
+static int del_htab(unsigned int i, struct update_ctx *ctx)
+{
+	bpf_map_delete_elem(&htab, &ctx->from);
+	ctx->from += ctx->step;
+
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_getpgid")
+int overwrite(void *ctx)
+{
+	struct update_ctx update;
+
+	update.from = bpf_get_smp_processor_id();
+	update.step = nr_thread;
+	bpf_loop(OP_BATCH, overwrite_htab, &update, 0);
+	__sync_fetch_and_add(&op_cnt, 1);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_getpgid")
+int batch_add_batch_del(void *ctx)
+{
+	struct update_ctx update;
+
+	update.from = bpf_get_smp_processor_id();
+	update.step = nr_thread;
+	bpf_loop(OP_BATCH, overwrite_htab, &update, 0);
+
+	update.from = bpf_get_smp_processor_id();
+	bpf_loop(OP_BATCH, del_htab, &update, 0);
+
+	__sync_fetch_and_add(&op_cnt, 2);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_getpgid")
+int add_only(void *ctx)
+{
+	struct update_ctx update;
+
+	update.from = bpf_get_smp_processor_id() / 2;
+	update.step = nr_thread / 2;
+	bpf_loop(OP_BATCH, newwrite_htab, &update, 0);
+	__sync_fetch_and_add(&op_cnt, 1);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_getppid")
+int del_only(void *ctx)
+{
+	struct update_ctx update;
+
+	update.from = bpf_get_smp_processor_id() / 2;
+	update.step = nr_thread / 2;
+	bpf_loop(OP_BATCH, del_htab, &update, 0);
+	__sync_fetch_and_add(&op_cnt, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/htab_reuse.c b/tools/testing/selftests/bpf/progs/htab_reuse.c
new file mode 100644
index 000000000000..7f7368cb3095
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/htab_reuse.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct htab_val {
+	struct bpf_spin_lock lock;
+	unsigned int data;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 64);
+	__type(key, unsigned int);
+	__type(value, struct htab_val);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} htab SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/htab_update.c b/tools/testing/selftests/bpf/progs/htab_update.c
new file mode 100644
index 000000000000..195d3b2fba00
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/htab_update.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Map value type: has BTF-managed field (bpf_timer) */
+struct val {
+	struct bpf_timer t;
+	__u64 payload;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct val);
+} htab SEC(".maps");
+
+int pid = 0;
+int update_err = 0;
+
+SEC("?fentry/bpf_obj_free_fields")
+int bpf_obj_free_fields(void *ctx)
+{
+	__u32 key = 0;
+	struct val value = { .payload = 1 };
+
+	if ((bpf_get_current_pid_tgid() >> 32) != pid)
+		return 0;
+
+	update_err = bpf_map_update_elem(&htab, &key, &value, BPF_ANY);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/ima.c b/tools/testing/selftests/bpf/progs/ima.c
new file mode 100644
index 000000000000..e16a2c208481
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/ima.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+u32 monitored_pid = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 1 << 12);
+} ringbuf SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+bool use_ima_file_hash;
+bool enable_bprm_creds_for_exec;
+bool enable_kernel_read_file;
+bool test_deny;
+
+static void ima_test_common(struct file *file)
+{
+	u64 ima_hash = 0;
+	u64 *sample;
+	int ret;
+	u32 pid;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid == monitored_pid) {
+		if (!use_ima_file_hash)
+			ret = bpf_ima_inode_hash(file->f_inode, &ima_hash,
+						 sizeof(ima_hash));
+		else
+			ret = bpf_ima_file_hash(file, &ima_hash,
+						sizeof(ima_hash));
+		if (ret < 0 || ima_hash == 0)
+			return;
+
+		sample = bpf_ringbuf_reserve(&ringbuf, sizeof(u64), 0);
+		if (!sample)
+			return;
+
+		*sample = ima_hash;
+		bpf_ringbuf_submit(sample, 0);
+	}
+
+	return;
+}
+
+static int ima_test_deny(void)
+{
+	u32 pid;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid == monitored_pid && test_deny)
+		return -EPERM;
+
+	return 0;
+}
+
+SEC("lsm.s/bprm_committed_creds")
+void BPF_PROG(bprm_committed_creds, struct linux_binprm *bprm)
+{
+	ima_test_common(bprm->file);
+}
+
+SEC("lsm.s/bprm_creds_for_exec")
+int BPF_PROG(bprm_creds_for_exec, struct linux_binprm *bprm)
+{
+	if (!enable_bprm_creds_for_exec)
+		return 0;
+
+	ima_test_common(bprm->file);
+	return 0;
+}
+
+SEC("lsm.s/kernel_read_file")
+int BPF_PROG(kernel_read_file, struct file *file, enum kernel_read_file_id id,
+	     bool contents)
+{
+	int ret;
+
+	if (!enable_kernel_read_file)
+		return 0;
+
+	if (!contents)
+		return 0;
+
+	if (id != READING_POLICY)
+		return 0;
+
+	ret = ima_test_deny();
+	if (ret < 0)
+		return ret;
+
+	ima_test_common(file);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/inner_array_lookup.c b/tools/testing/selftests/bpf/progs/inner_array_lookup.c
new file mode 100644
index 000000000000..c2c8f2fa451d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/inner_array_lookup.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 5);
+	__type(key, int);
+	__type(value, int);
+} inner_map1 SEC(".maps");
+
+struct outer_map {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 3);
+	__type(key, int);
+	__array(values, struct inner_map);
+} outer_map1 SEC(".maps") = {
+	.values = {
+		[2] = &inner_map1,
+	},
+};
+
+SEC("raw_tp/sys_enter")
+int handle__sys_enter(void *ctx)
+{
+	int outer_key = 2, inner_key = 3;
+	int *val;
+	void *map;
+
+	map = bpf_map_lookup_elem(&outer_map1, &outer_key);
+	if (!map)
+		return 1;
+
+	val = bpf_map_lookup_elem(map, &inner_key);
+	if (!val)
+		return 1;
+
+	if (*val == 1)
+		*val = 2;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/ip_check_defrag.c b/tools/testing/selftests/bpf/progs/ip_check_defrag.c
new file mode 100644
index 000000000000..0e87ad1ebcfa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/ip_check_defrag.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_tracing_net.h"
+
+#define NF_DROP			0
+#define NF_ACCEPT		1
+#define ETH_P_IP		0x0800
+#define ETH_P_IPV6		0x86DD
+#define IP_MF			0x2000
+#define IP_OFFSET		0x1FFF
+#define NEXTHDR_FRAGMENT	44
+
+volatile int shootdowns = 0;
+
+static bool is_frag_v4(struct iphdr *iph)
+{
+	int offset;
+	int flags;
+
+	offset = bpf_ntohs(iph->frag_off);
+	flags = offset & ~IP_OFFSET;
+	offset &= IP_OFFSET;
+	offset <<= 3;
+
+	return (flags & IP_MF) || offset;
+}
+
+static bool is_frag_v6(struct ipv6hdr *ip6h)
+{
+	/* Simplifying assumption that there are no extension headers
+	 * between fixed header and fragmentation header. This assumption
+	 * is only valid in this test case. It saves us the hassle of
+	 * searching all potential extension headers.
+	 */
+	return ip6h->nexthdr == NEXTHDR_FRAGMENT;
+}
+
+static int handle_v4(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	u8 iph_buf[20] = {};
+	struct iphdr *iph;
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr))
+		return NF_DROP;
+
+	iph = bpf_dynptr_slice(&ptr, 0, iph_buf, sizeof(iph_buf));
+	if (!iph)
+		return NF_DROP;
+
+	/* Shootdown any frags */
+	if (is_frag_v4(iph)) {
+		shootdowns++;
+		return NF_DROP;
+	}
+
+	return NF_ACCEPT;
+}
+
+static int handle_v6(struct __sk_buff *skb)
+{
+	struct bpf_dynptr ptr;
+	struct ipv6hdr *ip6h;
+	u8 ip6h_buf[40] = {};
+
+	if (bpf_dynptr_from_skb(skb, 0, &ptr))
+		return NF_DROP;
+
+	ip6h = bpf_dynptr_slice(&ptr, 0, ip6h_buf, sizeof(ip6h_buf));
+	if (!ip6h)
+		return NF_DROP;
+
+	/* Shootdown any frags */
+	if (is_frag_v6(ip6h)) {
+		shootdowns++;
+		return NF_DROP;
+	}
+
+	return NF_ACCEPT;
+}
+
+SEC("netfilter")
+int defrag(struct bpf_nf_ctx *ctx)
+{
+	struct __sk_buff *skb = (struct __sk_buff *)ctx->skb;
+
+	switch (bpf_ntohs(ctx->skb->protocol)) {
+	case ETH_P_IP:
+		return handle_v4(skb);
+	case ETH_P_IPV6:
+		return handle_v6(skb);
+	default:
+		return NF_ACCEPT;
+	}
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/irq.c b/tools/testing/selftests/bpf/progs/irq.c
new file mode 100644
index 000000000000..74d912b22de9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/irq.c
@@ -0,0 +1,566 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+unsigned long global_flags;
+
+extern void bpf_local_irq_save(unsigned long *) __weak __ksym;
+extern void bpf_local_irq_restore(unsigned long *) __weak __ksym;
+extern int bpf_copy_from_user_str(void *dst, u32 dst__sz, const void *unsafe_ptr__ign, u64 flags) __weak __ksym;
+
+struct bpf_res_spin_lock lockA __hidden SEC(".data.A");
+struct bpf_res_spin_lock lockB __hidden SEC(".data.B");
+
+SEC("?tc")
+__failure __msg("arg#0 doesn't point to an irq flag on stack")
+int irq_save_bad_arg(struct __sk_buff *ctx)
+{
+	bpf_local_irq_save(&global_flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("arg#0 doesn't point to an irq flag on stack")
+int irq_restore_bad_arg(struct __sk_buff *ctx)
+{
+	bpf_local_irq_restore(&global_flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_2(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags2);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_3(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags2);
+	bpf_local_irq_save(&flags3);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_3_minus_2(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags2);
+	bpf_local_irq_save(&flags3);
+	bpf_local_irq_restore(&flags3);
+	bpf_local_irq_restore(&flags2);
+	return 0;
+}
+
+static __noinline void local_irq_save(unsigned long *flags)
+{
+	bpf_local_irq_save(flags);
+}
+
+static __noinline void local_irq_restore(unsigned long *flags)
+{
+	bpf_local_irq_restore(flags);
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_1_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags;
+
+	local_irq_save(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_2_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+
+	local_irq_save(&flags1);
+	local_irq_save(&flags2);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_3_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save(&flags1);
+	local_irq_save(&flags2);
+	local_irq_save(&flags3);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_local_irq_save-ed region")
+int irq_restore_missing_3_minus_2_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save(&flags1);
+	local_irq_save(&flags2);
+	local_irq_save(&flags3);
+	local_irq_restore(&flags3);
+	local_irq_restore(&flags2);
+	return 0;
+}
+
+SEC("?tc")
+__success
+int irq_balance(struct __sk_buff *ctx)
+{
+	unsigned long flags;
+
+	local_irq_save(&flags);
+	local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__success
+int irq_balance_n(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save(&flags1);
+	local_irq_save(&flags2);
+	local_irq_save(&flags3);
+	local_irq_restore(&flags3);
+	local_irq_restore(&flags2);
+	local_irq_restore(&flags1);
+	return 0;
+}
+
+static __noinline void local_irq_balance(void)
+{
+	unsigned long flags;
+
+	local_irq_save(&flags);
+	local_irq_restore(&flags);
+}
+
+static __noinline void local_irq_balance_n(void)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save(&flags1);
+	local_irq_save(&flags2);
+	local_irq_save(&flags3);
+	local_irq_restore(&flags3);
+	local_irq_restore(&flags2);
+	local_irq_restore(&flags1);
+}
+
+SEC("?tc")
+__success
+int irq_balance_subprog(struct __sk_buff *ctx)
+{
+	local_irq_balance();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("sleepable helper bpf_copy_from_user#")
+int irq_sleepable_helper(void *ctx)
+{
+	unsigned long flags;
+	u32 data;
+
+	local_irq_save(&flags);
+	bpf_copy_from_user(&data, sizeof(data), NULL);
+	local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_copy_from_user_str is sleepable within IRQ-disabled region")
+int irq_sleepable_kfunc(void *ctx)
+{
+	unsigned long flags;
+	u32 data;
+
+	local_irq_save(&flags);
+	bpf_copy_from_user_str(&data, sizeof(data), NULL, 0);
+	local_irq_restore(&flags);
+	return 0;
+}
+
+int __noinline global_local_irq_balance(void)
+{
+	local_irq_balance_n();
+	return 0;
+}
+
+SEC("?tc")
+__success
+int irq_global_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	global_local_irq_balance();
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_restore_ooo(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags2);
+	bpf_local_irq_restore(&flags1);
+	bpf_local_irq_restore(&flags2);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_restore_ooo_3(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags2);
+	bpf_local_irq_restore(&flags2);
+	bpf_local_irq_save(&flags3);
+	bpf_local_irq_restore(&flags1);
+	bpf_local_irq_restore(&flags3);
+	return 0;
+}
+
+static __noinline void local_irq_save_3(unsigned long *flags1, unsigned long *flags2,
+					unsigned long *flags3)
+{
+	local_irq_save(flags1);
+	local_irq_save(flags2);
+	local_irq_save(flags3);
+}
+
+SEC("?tc")
+__success
+int irq_restore_3_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save_3(&flags1, &flags2, &flags3);
+	bpf_local_irq_restore(&flags3);
+	bpf_local_irq_restore(&flags2);
+	bpf_local_irq_restore(&flags1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_restore_4_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+	unsigned long flags4;
+
+	local_irq_save_3(&flags1, &flags2, &flags3);
+	bpf_local_irq_restore(&flags3);
+	bpf_local_irq_save(&flags4);
+	bpf_local_irq_restore(&flags4);
+	bpf_local_irq_restore(&flags1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_restore_ooo_3_subprog(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags2;
+	unsigned long flags3;
+
+	local_irq_save_3(&flags1, &flags2, &flags3);
+	bpf_local_irq_restore(&flags3);
+	bpf_local_irq_restore(&flags2);
+	bpf_local_irq_save(&flags3);
+	bpf_local_irq_restore(&flags1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("expected an initialized")
+int irq_restore_invalid(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+	unsigned long flags = 0xfaceb00c;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("expected uninitialized")
+int irq_save_invalid(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+
+	bpf_local_irq_save(&flags1);
+	bpf_local_irq_save(&flags1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("expected an initialized")
+int irq_restore_iter(struct __sk_buff *ctx)
+{
+	struct bpf_iter_num it;
+
+	bpf_iter_num_new(&it, 0, 42);
+	bpf_local_irq_restore((unsigned long *)&it);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference id=1")
+int irq_save_iter(struct __sk_buff *ctx)
+{
+	struct bpf_iter_num it;
+
+	/* Ensure same sized slot has st->ref_obj_id set, so we reject based on
+	 * slot_type != STACK_IRQ_FLAG...
+	 */
+	_Static_assert(sizeof(it) == sizeof(unsigned long), "broken iterator size");
+
+	bpf_iter_num_new(&it, 0, 42);
+	bpf_local_irq_save((unsigned long *)&it);
+	bpf_local_irq_restore((unsigned long *)&it);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("expected an initialized")
+int irq_flag_overwrite(struct __sk_buff *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	flags = 0xdeadbeef;
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("expected an initialized")
+int irq_flag_overwrite_partial(struct __sk_buff *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	*(((char *)&flags) + 1) = 0xff;
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_ooo_refs_array(struct __sk_buff *ctx)
+{
+	unsigned long flags[4];
+	struct { int i; } *p;
+
+	/* refs=1 */
+	bpf_local_irq_save(&flags[0]);
+
+	/* refs=1,2 */
+	p = bpf_obj_new(typeof(*p));
+	if (!p) {
+		bpf_local_irq_restore(&flags[0]);
+		return 0;
+	}
+
+	/* refs=1,2,3 */
+	bpf_local_irq_save(&flags[1]);
+
+	/* refs=1,2,3,4 */
+	bpf_local_irq_save(&flags[2]);
+
+	/* Now when we remove ref=2, the verifier must not break the ordering in
+	 * the refs array between 1,3,4. With an older implementation, the
+	 * verifier would swap the last element with the removed element, but to
+	 * maintain the stack property we need to use memmove.
+	 */
+	bpf_obj_drop(p);
+
+	/* Save and restore to reset active_irq_id to 3, as the ordering is now
+	 * refs=1,4,3. When restoring the linear scan will find prev_id in order
+	 * as 3 instead of 4.
+	 */
+	bpf_local_irq_save(&flags[3]);
+	bpf_local_irq_restore(&flags[3]);
+
+	/* With the incorrect implementation, we can release flags[1], flags[2],
+	 * and flags[0], i.e. in the wrong order.
+	 */
+	bpf_local_irq_restore(&flags[1]);
+	bpf_local_irq_restore(&flags[2]);
+	bpf_local_irq_restore(&flags[0]);
+	return 0;
+}
+
+int __noinline
+global_subprog(int i)
+{
+	if (i)
+		bpf_printk("%p", &i);
+	return i;
+}
+
+int __noinline
+global_sleepable_helper_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+int __noinline
+global_sleepable_kfunc_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user_str(&i, sizeof(i), NULL, 0);
+	global_subprog(i);
+	return i;
+}
+
+int __noinline
+global_subprog_calling_sleepable_global(int i)
+{
+	if (!i)
+		global_sleepable_kfunc_subprog(i);
+	return i;
+}
+
+SEC("?syscall")
+__success
+int irq_non_sleepable_global_subprog(void *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	global_subprog(0);
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("global functions that may sleep are not allowed in non-sleepable context")
+int irq_sleepable_helper_global_subprog(void *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	global_sleepable_helper_subprog(0);
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("global functions that may sleep are not allowed in non-sleepable context")
+int irq_sleepable_global_subprog_indirect(void *ctx)
+{
+	unsigned long flags;
+
+	bpf_local_irq_save(&flags);
+	global_subprog_calling_sleepable_global(0);
+	bpf_local_irq_restore(&flags);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("cannot restore irq state out of order")
+int irq_ooo_lock_cond_inv(struct __sk_buff *ctx)
+{
+	unsigned long flags1, flags2;
+
+	if (bpf_res_spin_lock_irqsave(&lockA, &flags1))
+		return 0;
+	if (bpf_res_spin_lock_irqsave(&lockB, &flags2)) {
+		bpf_res_spin_unlock_irqrestore(&lockA, &flags1);
+		return 0;
+	}
+
+	bpf_res_spin_unlock_irqrestore(&lockB, &flags1);
+	bpf_res_spin_unlock_irqrestore(&lockA, &flags2);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("function calls are not allowed")
+int irq_wrong_kfunc_class_1(struct __sk_buff *ctx)
+{
+	unsigned long flags1;
+
+	if (bpf_res_spin_lock_irqsave(&lockA, &flags1))
+		return 0;
+	/* For now, bpf_local_irq_restore is not allowed in critical section,
+	 * but this test ensures error will be caught with kfunc_class when it's
+	 * opened up. Tested by temporarily permitting this kfunc in critical
+	 * section.
+	 */
+	bpf_local_irq_restore(&flags1);
+	bpf_res_spin_unlock_irqrestore(&lockA, &flags1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("function calls are not allowed")
+int irq_wrong_kfunc_class_2(struct __sk_buff *ctx)
+{
+	unsigned long flags1, flags2;
+
+	bpf_local_irq_save(&flags1);
+	if (bpf_res_spin_lock_irqsave(&lockA, &flags2))
+		return 0;
+	bpf_local_irq_restore(&flags2);
+	bpf_res_spin_unlock_irqrestore(&lockA, &flags1);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/iters.c b/tools/testing/selftests/bpf/progs/iters.c
new file mode 100644
index 000000000000..7dd92a303bf6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters.c
@@ -0,0 +1,1929 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_compiler.h"
+
+static volatile int zero = 0;
+
+int my_pid;
+int arr[256];
+int small_arr[16] SEC(".data.small_arr");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 10);
+	__type(key, int);
+	__type(value, int);
+} amap SEC(".maps");
+
+#ifdef REAL_TEST
+#define MY_PID_GUARD() if (my_pid != (bpf_get_current_pid_tgid() >> 32)) return 0
+#else
+#define MY_PID_GUARD() ({ })
+#endif
+
+SEC("?raw_tp")
+__failure __msg("math between map_value pointer and register with unbounded min value is not allowed")
+int iter_err_unsafe_c_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, i = zero; /* obscure initial value of i */
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 1000);
+	while ((v = bpf_iter_num_next(&it))) {
+		i++;
+	}
+	bpf_iter_num_destroy(&it);
+
+	small_arr[i] = 123; /* invalid */
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("unbounded memory access")
+int iter_err_unsafe_asm_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+
+	MY_PID_GUARD();
+
+	asm volatile (
+		"r6 = %[zero];" /* iteration counter */
+		"r1 = %[it];" /* iterator state */
+		"r2 = 0;"
+		"r3 = 1000;"
+		"r4 = 1;"
+		"call %[bpf_iter_num_new];"
+	"loop:"
+		"r1 = %[it];"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto out;"
+		"r6 += 1;"
+		"goto loop;"
+	"out:"
+		"r1 = %[it];"
+		"call %[bpf_iter_num_destroy];"
+		"r1 = %[small_arr];"
+		"r2 = r6;"
+		"r2 <<= 2;"
+		"r1 += r2;"
+		"*(u32 *)(r1 + 0) = r6;" /* invalid */
+		:
+		: [it]"r"(&it),
+		  [small_arr]"r"(small_arr),
+		  [zero]"r"(zero),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_common, "r6"
+	);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_while_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 3);
+	while ((v = bpf_iter_num_next(&it))) {
+		bpf_printk("ITER_BASIC: E1 VAL: v=%d", *v);
+	}
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_while_loop_auto_cleanup(const void *ctx)
+{
+	__attribute__((cleanup(bpf_iter_num_destroy))) struct bpf_iter_num it;
+	int *v;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 3);
+	while ((v = bpf_iter_num_next(&it))) {
+		bpf_printk("ITER_BASIC: E1 VAL: v=%d", *v);
+	}
+	/* (!) no explicit bpf_iter_num_destroy() */
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_for_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 5, 10);
+	for (v = bpf_iter_num_next(&it); v; v = bpf_iter_num_next(&it)) {
+		bpf_printk("ITER_BASIC: E2 VAL: v=%d", *v);
+	}
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_bpf_for_each_macro(const void *ctx)
+{
+	int *v;
+
+	MY_PID_GUARD();
+
+	bpf_for_each(num, v, 5, 10) {
+		bpf_printk("ITER_BASIC: E2 VAL: v=%d", *v);
+	}
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_bpf_for_macro(const void *ctx)
+{
+	int i;
+
+	MY_PID_GUARD();
+
+	bpf_for(i, 5, 10) {
+		bpf_printk("ITER_BASIC: E2 VAL: v=%d", i);
+	}
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_pragma_unroll_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, i;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 2);
+	__pragma_loop_no_unroll
+	for (i = 0; i < 3; i++) {
+		v = bpf_iter_num_next(&it);
+		bpf_printk("ITER_BASIC: E3 VAL: i=%d v=%d", i, v ? *v : -1);
+	}
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_manual_unroll_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 100, 200);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d\n", v ? *v : -1);
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_multiple_sequential_loops(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, i;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 3);
+	while ((v = bpf_iter_num_next(&it))) {
+		bpf_printk("ITER_BASIC: E1 VAL: v=%d", *v);
+	}
+	bpf_iter_num_destroy(&it);
+
+	bpf_iter_num_new(&it, 5, 10);
+	for (v = bpf_iter_num_next(&it); v; v = bpf_iter_num_next(&it)) {
+		bpf_printk("ITER_BASIC: E2 VAL: v=%d", *v);
+	}
+	bpf_iter_num_destroy(&it);
+
+	bpf_iter_num_new(&it, 0, 2);
+	__pragma_loop_no_unroll
+	for (i = 0; i < 3; i++) {
+		v = bpf_iter_num_next(&it);
+		bpf_printk("ITER_BASIC: E3 VAL: i=%d v=%d", i, v ? *v : -1);
+	}
+	bpf_iter_num_destroy(&it);
+
+	bpf_iter_num_new(&it, 100, 200);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d", v ? *v : -1);
+	v = bpf_iter_num_next(&it);
+	bpf_printk("ITER_BASIC: E4 VAL: v=%d\n", v ? *v : -1);
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_limit_cond_break_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, i = 0, sum = 0;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 10);
+	while ((v = bpf_iter_num_next(&it))) {
+		bpf_printk("ITER_SIMPLE: i=%d v=%d", i, *v);
+		sum += *v;
+
+		i++;
+		if (i > 3)
+			break;
+	}
+	bpf_iter_num_destroy(&it);
+
+	bpf_printk("ITER_SIMPLE: sum=%d\n", sum);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_obfuscate_counter(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, sum = 0;
+	/* Make i's initial value unknowable for verifier to prevent it from
+	 * pruning if/else branch inside the loop body and marking i as precise.
+	 */
+	int i = zero;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 10);
+	while ((v = bpf_iter_num_next(&it))) {
+		int x;
+
+		i += 1;
+
+		/* If we initialized i as `int i = 0;` above, verifier would
+		 * track that i becomes 1 on first iteration after increment
+		 * above, and here verifier would eagerly prune else branch
+		 * and mark i as precise, ruining open-coded iterator logic
+		 * completely, as each next iteration would have a different
+		 * *precise* value of i, and thus there would be no
+		 * convergence of state. This would result in reaching maximum
+		 * instruction limit, no matter what the limit is.
+		 */
+		if (i == 1)
+			x = 123;
+		else
+			x = i * 3 + 1;
+
+		bpf_printk("ITER_OBFUSCATE_COUNTER: i=%d v=%d x=%d", i, *v, x);
+
+		sum += x;
+	}
+	bpf_iter_num_destroy(&it);
+
+	bpf_printk("ITER_OBFUSCATE_COUNTER: sum=%d\n", sum);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_search_loop(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, *elem = NULL;
+	bool found = false;
+
+	MY_PID_GUARD();
+
+	bpf_iter_num_new(&it, 0, 10);
+
+	while ((v = bpf_iter_num_next(&it))) {
+		bpf_printk("ITER_SEARCH_LOOP: v=%d", *v);
+
+		if (*v == 2) {
+			found = true;
+			elem = v;
+			barrier_var(elem);
+		}
+	}
+
+	/* should fail to verify if bpf_iter_num_destroy() is here */
+
+	if (found)
+		/* here found element will be wrong, we should have copied
+		 * value to a variable, but here we want to make sure we can
+		 * access memory after the loop anyways
+		 */
+		bpf_printk("ITER_SEARCH_LOOP: FOUND IT = %d!\n", *elem);
+	else
+		bpf_printk("ITER_SEARCH_LOOP: NOT FOUND IT!\n");
+
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_array_fill(const void *ctx)
+{
+	int sum, i;
+
+	MY_PID_GUARD();
+
+	bpf_for(i, 0, ARRAY_SIZE(arr)) {
+		arr[i] = i * 2;
+	}
+
+	sum = 0;
+	bpf_for(i, 0, ARRAY_SIZE(arr)) {
+		sum += arr[i];
+	}
+
+	bpf_printk("ITER_ARRAY_FILL: sum=%d (should be %d)\n", sum, 255 * 256);
+
+	return 0;
+}
+
+static int arr2d[4][5];
+static int arr2d_row_sums[4];
+static int arr2d_col_sums[5];
+
+SEC("raw_tp")
+__success
+int iter_nested_iters(const void *ctx)
+{
+	int sum, row, col;
+
+	MY_PID_GUARD();
+
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		bpf_for( col, 0, ARRAY_SIZE(arr2d[0])) {
+			arr2d[row][col] = row * col;
+		}
+	}
+
+	/* zero-initialize sums */
+	sum = 0;
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		arr2d_row_sums[row] = 0;
+	}
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		arr2d_col_sums[col] = 0;
+	}
+
+	/* calculate sums */
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+			sum += arr2d[row][col];
+			arr2d_row_sums[row] += arr2d[row][col];
+			arr2d_col_sums[col] += arr2d[row][col];
+		}
+	}
+
+	bpf_printk("ITER_NESTED_ITERS: total sum=%d", sum);
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		bpf_printk("ITER_NESTED_ITERS: row #%d sum=%d", row, arr2d_row_sums[row]);
+	}
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		bpf_printk("ITER_NESTED_ITERS: col #%d sum=%d%s",
+			   col, arr2d_col_sums[col],
+			   col == ARRAY_SIZE(arr2d[0]) - 1 ? "\n" : "");
+	}
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_nested_deeply_iters(const void *ctx)
+{
+	int sum = 0;
+
+	MY_PID_GUARD();
+
+	bpf_repeat(10) {
+		bpf_repeat(10) {
+			bpf_repeat(10) {
+				bpf_repeat(10) {
+					bpf_repeat(10) {
+						sum += 1;
+					}
+				}
+			}
+		}
+		/* validate that we can break from inside bpf_repeat() */
+		break;
+	}
+
+	return sum;
+}
+
+static __noinline void fill_inner_dimension(int row)
+{
+	int col;
+
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		arr2d[row][col] = row * col;
+	}
+}
+
+static __noinline int sum_inner_dimension(int row)
+{
+	int sum = 0, col;
+
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		sum += arr2d[row][col];
+		arr2d_row_sums[row] += arr2d[row][col];
+		arr2d_col_sums[col] += arr2d[row][col];
+	}
+
+	return sum;
+}
+
+SEC("raw_tp")
+__success
+int iter_subprog_iters(const void *ctx)
+{
+	int sum, row, col;
+
+	MY_PID_GUARD();
+
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		fill_inner_dimension(row);
+	}
+
+	/* zero-initialize sums */
+	sum = 0;
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		arr2d_row_sums[row] = 0;
+	}
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		arr2d_col_sums[col] = 0;
+	}
+
+	/* calculate sums */
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		sum += sum_inner_dimension(row);
+	}
+
+	bpf_printk("ITER_SUBPROG_ITERS: total sum=%d", sum);
+	bpf_for(row, 0, ARRAY_SIZE(arr2d)) {
+		bpf_printk("ITER_SUBPROG_ITERS: row #%d sum=%d",
+			   row, arr2d_row_sums[row]);
+	}
+	bpf_for(col, 0, ARRAY_SIZE(arr2d[0])) {
+		bpf_printk("ITER_SUBPROG_ITERS: col #%d sum=%d%s",
+			   col, arr2d_col_sums[col],
+			   col == ARRAY_SIZE(arr2d[0]) - 1 ? "\n" : "");
+	}
+
+	return 0;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1000);
+} hash_map SEC(".maps");
+
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int iter_err_too_permissive1(const void *ctx)
+{
+	int *map_val = NULL;
+	int key = 0;
+
+	MY_PID_GUARD();
+
+	map_val = bpf_map_lookup_elem(&hash_map, &key);
+	if (!map_val)
+		return 0;
+
+	bpf_repeat(1000000) {
+		map_val = NULL;
+	}
+
+	*map_val = 123;
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'map_value_or_null'")
+int iter_err_too_permissive2(const void *ctx)
+{
+	int *map_val = NULL;
+	int key = 0;
+
+	MY_PID_GUARD();
+
+	map_val = bpf_map_lookup_elem(&hash_map, &key);
+	if (!map_val)
+		return 0;
+
+	bpf_repeat(1000000) {
+		map_val = bpf_map_lookup_elem(&hash_map, &key);
+	}
+
+	*map_val = 123;
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'map_value_or_null'")
+int iter_err_too_permissive3(const void *ctx)
+{
+	int *map_val = NULL;
+	int key = 0;
+	bool found = false;
+
+	MY_PID_GUARD();
+
+	bpf_repeat(1000000) {
+		map_val = bpf_map_lookup_elem(&hash_map, &key);
+		found = true;
+	}
+
+	if (found)
+		*map_val = 123;
+
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int iter_tricky_but_fine(const void *ctx)
+{
+	int *map_val = NULL;
+	int key = 0;
+	bool found = false;
+
+	MY_PID_GUARD();
+
+	bpf_repeat(1000000) {
+		map_val = bpf_map_lookup_elem(&hash_map, &key);
+		if (map_val) {
+			found = true;
+			break;
+		}
+	}
+
+	if (found)
+		*map_val = 123;
+
+	return 0;
+}
+
+#define __bpf_memzero(p, sz) bpf_probe_read_kernel((p), (sz), 0)
+
+SEC("raw_tp")
+__success
+int iter_stack_array_loop(const void *ctx)
+{
+	long arr1[16], arr2[16], sum = 0;
+	int i;
+
+	MY_PID_GUARD();
+
+	/* zero-init arr1 and arr2 in such a way that verifier doesn't know
+	 * it's all zeros; if we don't do that, we'll make BPF verifier track
+	 * all combination of zero/non-zero stack slots for arr1/arr2, which
+	 * will lead to O(2^(ARRAY_SIZE(arr1)+ARRAY_SIZE(arr2))) different
+	 * states
+	 */
+	__bpf_memzero(arr1, sizeof(arr1));
+	__bpf_memzero(arr2, sizeof(arr1));
+
+	/* validate that we can break and continue when using bpf_for() */
+	bpf_for(i, 0, ARRAY_SIZE(arr1)) {
+		if (i & 1) {
+			arr1[i] = i;
+			continue;
+		} else {
+			arr2[i] = i;
+			break;
+		}
+	}
+
+	bpf_for(i, 0, ARRAY_SIZE(arr1)) {
+		sum += arr1[i] + arr2[i];
+	}
+
+	return sum;
+}
+
+static __noinline void fill(struct bpf_iter_num *it, int *arr, __u32 n, int mul)
+{
+	int *t, i;
+
+	while ((t = bpf_iter_num_next(it))) {
+		i = *t;
+		if (i >= n)
+			break;
+		arr[i] =  i * mul;
+	}
+}
+
+static __noinline int sum(struct bpf_iter_num *it, int *arr, __u32 n)
+{
+	int *t, i, sum = 0;
+
+	while ((t = bpf_iter_num_next(it))) {
+		i = *t;
+		if ((__u32)i >= n)
+			break;
+		sum += arr[i];
+	}
+
+	return sum;
+}
+
+SEC("raw_tp")
+__success
+int iter_pass_iter_ptr_to_subprog(const void *ctx)
+{
+	int arr1[16], arr2[32];
+	struct bpf_iter_num it;
+	int n, sum1, sum2;
+
+	MY_PID_GUARD();
+
+	/* fill arr1 */
+	n = ARRAY_SIZE(arr1);
+	bpf_iter_num_new(&it, 0, n);
+	fill(&it, arr1, n, 2);
+	bpf_iter_num_destroy(&it);
+
+	/* fill arr2 */
+	n = ARRAY_SIZE(arr2);
+	bpf_iter_num_new(&it, 0, n);
+	fill(&it, arr2, n, 10);
+	bpf_iter_num_destroy(&it);
+
+	/* sum arr1 */
+	n = ARRAY_SIZE(arr1);
+	bpf_iter_num_new(&it, 0, n);
+	sum1 = sum(&it, arr1, n);
+	bpf_iter_num_destroy(&it);
+
+	/* sum arr2 */
+	n = ARRAY_SIZE(arr2);
+	bpf_iter_num_new(&it, 0, n);
+	sum2 = sum(&it, arr2, n);
+	bpf_iter_num_destroy(&it);
+
+	bpf_printk("sum1=%d, sum2=%d", sum1, sum2);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure
+__msg("R1 type=scalar expected=fp")
+__naked int delayed_read_mark(void)
+{
+	/* This is equivalent to C program below.
+	 * The call to bpf_iter_num_next() is reachable with r7 values &fp[-16] and 0xdead.
+	 * State with r7=&fp[-16] is visited first and follows r6 != 42 ... continue branch.
+	 * At this point iterator next() call is reached with r7 that has no read mark.
+	 * Loop body with r7=0xdead would only be visited if verifier would decide to continue
+	 * with second loop iteration. Absence of read mark on r7 might affect state
+	 * equivalent logic used for iterator convergence tracking.
+	 *
+	 * r7 = &fp[-16]
+	 * fp[-16] = 0
+	 * r6 = bpf_get_prandom_u32()
+	 * bpf_iter_num_new(&fp[-8], 0, 10)
+	 * while (bpf_iter_num_next(&fp[-8])) {
+	 *   r6++
+	 *   if (r6 != 42) {
+	 *     r7 = 0xdead
+	 *     continue;
+	 *   }
+	 *   bpf_probe_read_user(r7, 8, 0xdeadbeef); // this is not safe
+	 * }
+	 * bpf_iter_num_destroy(&fp[-8])
+	 * return 0
+	 */
+	asm volatile (
+		"r7 = r10;"
+		"r7 += -16;"
+		"r0 = 0;"
+		"*(u64 *)(r7 + 0) = r0;"
+		"call %[bpf_get_prandom_u32];"
+		"r6 = r0;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"1:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto 2f;"
+		"r6 += 1;"
+		"if r6 != 42 goto 3f;"
+		"r7 = 0xdead;"
+		"goto 1b;"
+	"3:"
+		"r1 = r7;"
+		"r2 = 8;"
+		"r3 = 0xdeadbeef;"
+		"call %[bpf_probe_read_user];"
+		"goto 1b;"
+	"2:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy),
+		  __imm(bpf_probe_read_user)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__failure
+__msg("math between fp pointer and register with unbounded")
+__naked int delayed_precision_mark(void)
+{
+	/* This is equivalent to C program below.
+	 * The test is similar to delayed_iter_mark but verifies that incomplete
+	 * precision don't fool verifier.
+	 * The call to bpf_iter_num_next() is reachable with r7 values -16 and -32.
+	 * State with r7=-16 is visited first and follows r6 != 42 ... continue branch.
+	 * At this point iterator next() call is reached with r7 that has no read
+	 * and precision marks.
+	 * Loop body with r7=-32 would only be visited if verifier would decide to continue
+	 * with second loop iteration. Absence of precision mark on r7 might affect state
+	 * equivalent logic used for iterator convergence tracking.
+	 *
+	 * r8 = 0
+	 * fp[-16] = 0
+	 * r7 = -16
+	 * r6 = bpf_get_prandom_u32()
+	 * bpf_iter_num_new(&fp[-8], 0, 10)
+	 * while (bpf_iter_num_next(&fp[-8])) {
+	 *   if (r6 != 42) {
+	 *     r7 = -32
+	 *     r6 = bpf_get_prandom_u32()
+	 *     continue;
+	 *   }
+	 *   r0 = r10
+	 *   r0 += r7
+	 *   r8 = *(u64 *)(r0 + 0)           // this is not safe
+	 *   r6 = bpf_get_prandom_u32()
+	 * }
+	 * bpf_iter_num_destroy(&fp[-8])
+	 * return r8
+	 */
+	asm volatile (
+		"r8 = 0;"
+		"*(u64 *)(r10 - 16) = r8;"
+		"r7 = -16;"
+		"call %[bpf_get_prandom_u32];"
+		"r6 = r0;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"1:"
+		"r1 = r10;"
+		"r1 += -8;\n"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto 2f;"
+		"if r6 != 42 goto 3f;"
+		"r7 = -33;"
+		"call %[bpf_get_prandom_u32];"
+		"r6 = r0;"
+		"goto 1b;\n"
+	"3:"
+		"r0 = r10;"
+		"r0 += r7;"
+		"r8 = *(u64 *)(r0 + 0);"
+		"call %[bpf_get_prandom_u32];"
+		"r6 = r0;"
+		"goto 1b;\n"
+	"2:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = r8;"
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy),
+		  __imm(bpf_probe_read_user)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__failure
+__msg("math between fp pointer and register with unbounded")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked int loop_state_deps1(void)
+{
+	/* This is equivalent to C program below.
+	 *
+	 * The case turns out to be tricky in a sense that:
+	 * - states with c=-25 are explored only on a second iteration
+	 *   of the outer loop;
+	 * - states with read+precise mark on c are explored only on
+	 *   second iteration of the inner loop and in a state which
+	 *   is pushed to states stack first.
+	 *
+	 * Depending on the details of iterator convergence logic
+	 * verifier might stop states traversal too early and miss
+	 * unsafe c=-25 memory access.
+	 *
+	 *   j = iter_new();		 // fp[-16]
+	 *   a = 0;			 // r6
+	 *   b = 0;			 // r7
+	 *   c = -24;			 // r8
+	 *   while (iter_next(j)) {
+	 *     i = iter_new();		 // fp[-8]
+	 *     a = 0;			 // r6
+	 *     b = 0;			 // r7
+	 *     while (iter_next(i)) {
+	 *	 if (a == 1) {
+	 *	   a = 0;
+	 *	   b = 1;
+	 *	 } else if (a == 0) {
+	 *	   a = 1;
+	 *	   if (random() == 42)
+	 *	     continue;
+	 *	   if (b == 1) {
+	 *	     *(r10 + c) = 7;  // this is not safe
+	 *	     iter_destroy(i);
+	 *	     iter_destroy(j);
+	 *	     return;
+	 *	   }
+	 *	 }
+	 *     }
+	 *     iter_destroy(i);
+	 *     a = 0;
+	 *     b = 0;
+	 *     c = -25;
+	 *   }
+	 *   iter_destroy(j);
+	 *   return;
+	 */
+	asm volatile (
+		"r1 = r10;"
+		"r1 += -16;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r6 = 0;"
+		"r7 = 0;"
+		"r8 = -24;"
+	"j_loop_%=:"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto j_loop_end_%=;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r6 = 0;"
+		"r7 = 0;"
+	"i_loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto i_loop_end_%=;"
+	"check_one_r6_%=:"
+		"if r6 != 1 goto check_zero_r6_%=;"
+		"r6 = 0;"
+		"r7 = 1;"
+		"goto i_loop_%=;"
+	"check_zero_r6_%=:"
+		"if r6 != 0 goto i_loop_%=;"
+		"r6 = 1;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto check_one_r7_%=;"
+		"goto i_loop_%=;"
+	"check_one_r7_%=:"
+		"if r7 != 1 goto i_loop_%=;"
+		"r0 = r10;"
+		"r0 += r8;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+	"i_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r6 = 0;"
+		"r7 = 0;"
+		"r8 = -25;"
+		"goto j_loop_%=;"
+	"j_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__failure
+__msg("math between fp pointer and register with unbounded")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked int loop_state_deps2(void)
+{
+	/* This is equivalent to C program below.
+	 *
+	 * The case turns out to be tricky in a sense that:
+	 * - states with read+precise mark on c are explored only on a second
+	 *   iteration of the first inner loop and in a state which is pushed to
+	 *   states stack first.
+	 * - states with c=-25 are explored only on a second iteration of the
+	 *   second inner loop and in a state which is pushed to states stack
+	 *   first.
+	 *
+	 * Depending on the details of iterator convergence logic
+	 * verifier might stop states traversal too early and miss
+	 * unsafe c=-25 memory access.
+	 *
+	 *   j = iter_new();             // fp[-16]
+	 *   a = 0;                      // r6
+	 *   b = 0;                      // r7
+	 *   c = -24;                    // r8
+	 *   while (iter_next(j)) {
+	 *     i = iter_new();           // fp[-8]
+	 *     a = 0;                    // r6
+	 *     b = 0;                    // r7
+	 *     while (iter_next(i)) {
+	 *       if (a == 1) {
+	 *         a = 0;
+	 *         b = 1;
+	 *       } else if (a == 0) {
+	 *         a = 1;
+	 *         if (random() == 42)
+	 *           continue;
+	 *         if (b == 1) {
+	 *           *(r10 + c) = 7;     // this is not safe
+	 *           iter_destroy(i);
+	 *           iter_destroy(j);
+	 *           return;
+	 *         }
+	 *       }
+	 *     }
+	 *     iter_destroy(i);
+	 *     i = iter_new();           // fp[-8]
+	 *     a = 0;                    // r6
+	 *     b = 0;                    // r7
+	 *     while (iter_next(i)) {
+	 *       if (a == 1) {
+	 *         a = 0;
+	 *         b = 1;
+	 *       } else if (a == 0) {
+	 *         a = 1;
+	 *         if (random() == 42)
+	 *           continue;
+	 *         if (b == 1) {
+	 *           a = 0;
+	 *           c = -25;
+	 *         }
+	 *       }
+	 *     }
+	 *     iter_destroy(i);
+	 *   }
+	 *   iter_destroy(j);
+	 *   return;
+	 */
+	asm volatile (
+		"r1 = r10;"
+		"r1 += -16;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r6 = 0;"
+		"r7 = 0;"
+		"r8 = -24;"
+	"j_loop_%=:"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto j_loop_end_%=;"
+
+		/* first inner loop */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r6 = 0;"
+		"r7 = 0;"
+	"i_loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto i_loop_end_%=;"
+	"check_one_r6_%=:"
+		"if r6 != 1 goto check_zero_r6_%=;"
+		"r6 = 0;"
+		"r7 = 1;"
+		"goto i_loop_%=;"
+	"check_zero_r6_%=:"
+		"if r6 != 0 goto i_loop_%=;"
+		"r6 = 1;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto check_one_r7_%=;"
+		"goto i_loop_%=;"
+	"check_one_r7_%=:"
+		"if r7 != 1 goto i_loop_%=;"
+		"r0 = r10;"
+		"r0 += r8;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+	"i_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+
+		/* second inner loop */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r6 = 0;"
+		"r7 = 0;"
+	"i2_loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto i2_loop_end_%=;"
+	"check2_one_r6_%=:"
+		"if r6 != 1 goto check2_zero_r6_%=;"
+		"r6 = 0;"
+		"r7 = 1;"
+		"goto i2_loop_%=;"
+	"check2_zero_r6_%=:"
+		"if r6 != 0 goto i2_loop_%=;"
+		"r6 = 1;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto check2_one_r7_%=;"
+		"goto i2_loop_%=;"
+	"check2_one_r7_%=:"
+		"if r7 != 1 goto i2_loop_%=;"
+		"r6 = 0;"
+		"r8 = -25;"
+		"goto i2_loop_%=;"
+	"i2_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+
+		"r6 = 0;"
+		"r7 = 0;"
+		"goto j_loop_%=;"
+	"j_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -16;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__failure
+__msg("math between fp pointer and register with unbounded")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked int loop_state_deps3(void)
+{
+	/* This is equivalent to a C program below.
+	 *
+	 *   if (random() != 24) {       // assume false branch is placed first
+	 *     i = iter_new();           // fp[-8]
+	 *     while (iter_next(i));
+	 *     iter_destroy(i);
+	 *     return;
+	 *   }
+	 *
+	 *   for (i = 10; i > 0; i--);   // increase dfs_depth for child states
+	 *
+	 *   i = iter_new();             // fp[-8]
+	 *   b = -24;                    // r8
+	 *   for (;;) {                  // checkpoint (L)
+	 *     if (iter_next(i))         // checkpoint (N)
+	 *       break;
+	 *     if (random() == 77) {     // assume false branch is placed first
+	 *       *(u64 *)(r10 + b) = 7;  // this is not safe when b == -25
+	 *       iter_destroy(i);
+	 *       return;
+	 *     }
+	 *     if (random() == 42) {     // assume false branch is placed first
+	 *       b = -25;
+	 *     }
+	 *   }
+	 *   iter_destroy(i);
+	 *
+	 * In case of a buggy verifier first loop might poison
+	 * env->cur_state->loop_entry with a state having 0 branches
+	 * and small dfs_depth. This would trigger NOT_EXACT states
+	 * comparison for some states within second loop.
+	 * Specifically, checkpoint (L) might be problematic if:
+	 * - branch with '*(u64 *)(r10 + b) = 7' is not explored yet;
+	 * - checkpoint (L) is first reached in state {b=-24};
+	 * - traversal is pruned at checkpoint (N) setting checkpoint's (L)
+	 *   branch count to 0, thus making it eligible for use in pruning;
+	 * - checkpoint (L) is next reached in state {b=-25},
+	 *   this would cause NOT_EXACT comparison with a state {b=-24}
+	 *   while 'b' is not marked precise yet.
+	 */
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == 24 goto 2f;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 5;"
+		"call %[bpf_iter_num_new];"
+	"1:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 != 0 goto 1b;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+	"2:"
+		/* loop to increase dfs_depth */
+		"r0 = 10;"
+	"3:"
+		"r0 -= 1;"
+		"if r0 != 0 goto 3b;"
+		/* end of loop */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r8 = -24;"
+	"main_loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto main_loop_end_%=;"
+		/* first if */
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == 77 goto unsafe_write_%=;"
+		/* second if */
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == 42 goto poison_r8_%=;"
+		/* iterate */
+		"goto main_loop_%=;"
+	"main_loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+
+	"unsafe_write_%=:"
+		"r0 = r10;"
+		"r0 += r8;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"goto main_loop_end_%=;"
+
+	"poison_r8_%=:"
+		"r8 = -25;"
+		"goto main_loop_%=;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__success
+__naked int triple_continue(void)
+{
+	/* This is equivalent to C program below.
+	 * High branching factor of the loop body turned out to be
+	 * problematic for one of the iterator convergence tracking
+	 * algorithms explored.
+	 *
+	 * r6 = bpf_get_prandom_u32()
+	 * bpf_iter_num_new(&fp[-8], 0, 10)
+	 * while (bpf_iter_num_next(&fp[-8])) {
+	 *   if (bpf_get_prandom_u32() != 42)
+	 *     continue;
+	 *   if (bpf_get_prandom_u32() != 42)
+	 *     continue;
+	 *   if (bpf_get_prandom_u32() != 42)
+	 *     continue;
+	 *   r0 += 0;
+	 * }
+	 * bpf_iter_num_destroy(&fp[-8])
+	 * return 0
+	 */
+	asm volatile (
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto loop_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto loop_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 != 42 goto loop_%=;"
+		"r0 += 0;"
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__success
+__naked int widen_spill(void)
+{
+	/* This is equivalent to C program below.
+	 * The counter is stored in fp[-16], if this counter is not widened
+	 * verifier states representing loop iterations would never converge.
+	 *
+	 * fp[-16] = 0
+	 * bpf_iter_num_new(&fp[-8], 0, 10)
+	 * while (bpf_iter_num_next(&fp[-8])) {
+	 *   r0 = fp[-16];
+	 *   r0 += 1;
+	 *   fp[-16] = r0;
+	 * }
+	 * bpf_iter_num_destroy(&fp[-8])
+	 * return 0
+	 */
+	asm volatile (
+		"r0 = 0;"
+		"*(u64 *)(r10 - 16) = r0;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+		"r0 = *(u64 *)(r10 - 16);"
+		"r0 += 1;"
+		"*(u64 *)(r10 - 16) = r0;"
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy)
+		: __clobber_all
+	);
+}
+
+SEC("raw_tp")
+__success
+__naked int checkpoint_states_deletion(void)
+{
+	/* This is equivalent to C program below.
+	 *
+	 *   int *a, *b, *c, *d, *e, *f;
+	 *   int i, sum = 0;
+	 *   bpf_for(i, 0, 10) {
+	 *     a = bpf_map_lookup_elem(&amap, &i);
+	 *     b = bpf_map_lookup_elem(&amap, &i);
+	 *     c = bpf_map_lookup_elem(&amap, &i);
+	 *     d = bpf_map_lookup_elem(&amap, &i);
+	 *     e = bpf_map_lookup_elem(&amap, &i);
+	 *     f = bpf_map_lookup_elem(&amap, &i);
+	 *     if (a) sum += 1;
+	 *     if (b) sum += 1;
+	 *     if (c) sum += 1;
+	 *     if (d) sum += 1;
+	 *     if (e) sum += 1;
+	 *     if (f) sum += 1;
+	 *   }
+	 *   return 0;
+	 *
+	 * The body of the loop spawns multiple simulation paths
+	 * with different combination of NULL/non-NULL information for a/b/c/d/e/f.
+	 * Each combination is unique from states_equal() point of view.
+	 * Explored states checkpoint is created after each iterator next call.
+	 * Iterator convergence logic expects that eventually current state
+	 * would get equal to one of the explored states and thus loop
+	 * exploration would be finished (at-least for a specific path).
+	 * Verifier evicts explored states with high miss to hit ratio
+	 * to to avoid comparing current state with too many explored
+	 * states per instruction.
+	 * This test is designed to "stress test" eviction policy defined using formula:
+	 *
+	 *    sl->miss_cnt > sl->hit_cnt * N + N // if true sl->state is evicted
+	 *
+	 * Currently N is set to 64, which allows for 6 variables in this test.
+	 */
+	asm volatile (
+		"r6 = 0;"                  /* a */
+		"r7 = 0;"                  /* b */
+		"r8 = 0;"                  /* c */
+		"*(u64 *)(r10 - 24) = r6;" /* d */
+		"*(u64 *)(r10 - 32) = r6;" /* e */
+		"*(u64 *)(r10 - 40) = r6;" /* f */
+		"r9 = 0;"                  /* sum */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+
+		"*(u64 *)(r10 - 16) = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"r6 = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"r7 = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"r8 = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"*(u64 *)(r10 - 24) = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"*(u64 *)(r10 - 32) = r0;"
+
+		"r1 = %[amap] ll;"
+		"r2 = r10;"
+		"r2 += -16;"
+		"call %[bpf_map_lookup_elem];"
+		"*(u64 *)(r10 - 40) = r0;"
+
+		"if r6 == 0 goto +1;"
+		"r9 += 1;"
+		"if r7 == 0 goto +1;"
+		"r9 += 1;"
+		"if r8 == 0 goto +1;"
+		"r9 += 1;"
+		"r0 = *(u64 *)(r10 - 24);"
+		"if r0 == 0 goto +1;"
+		"r9 += 1;"
+		"r0 = *(u64 *)(r10 - 32);"
+		"if r0 == 0 goto +1;"
+		"r9 += 1;"
+		"r0 = *(u64 *)(r10 - 40);"
+		"if r0 == 0 goto +1;"
+		"r9 += 1;"
+
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_map_lookup_elem),
+		  __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy),
+		  __imm_addr(amap)
+		: __clobber_all
+	);
+}
+
+struct {
+	int data[32];
+	int n;
+} loop_data;
+
+SEC("raw_tp")
+__success
+int iter_arr_with_actual_elem_count(const void *ctx)
+{
+	int i, n = loop_data.n, sum = 0;
+
+	if (n > ARRAY_SIZE(loop_data.data))
+		return 0;
+
+	bpf_for(i, 0, n) {
+		/* no rechecking of i against ARRAY_SIZE(loop_data.n) */
+		sum += loop_data.data[i];
+	}
+
+	return sum;
+}
+
+__u32 upper, select_n, result;
+__u64 global;
+
+static __noinline bool nest_2(char *str)
+{
+	/* some insns (including branch insns) to ensure stacksafe() is triggered
+	 * in nest_2(). This way, stacksafe() can compare frame associated with nest_1().
+	 */
+	if (str[0] == 't')
+		return true;
+	if (str[1] == 'e')
+		return true;
+	if (str[2] == 's')
+		return true;
+	if (str[3] == 't')
+		return true;
+	return false;
+}
+
+static __noinline bool nest_1(int n)
+{
+	/* case 0: allocate stack, case 1: no allocate stack */
+	switch (n) {
+	case 0: {
+		char comm[16];
+
+		if (bpf_get_current_comm(comm, 16))
+			return false;
+		return nest_2(comm);
+	}
+	case 1:
+		return nest_2((char *)&global);
+	default:
+		return false;
+	}
+}
+
+SEC("raw_tp")
+__success
+int iter_subprog_check_stacksafe(const void *ctx)
+{
+	long i;
+
+	bpf_for(i, 0, upper) {
+		if (!nest_1(select_n)) {
+			result = 1;
+			return 0;
+		}
+	}
+
+	result = 2;
+	return 0;
+}
+
+struct bpf_iter_num global_it;
+
+SEC("raw_tp")
+__failure __msg("arg#0 expected pointer to an iterator on stack")
+int iter_new_bad_arg(const void *ctx)
+{
+	bpf_iter_num_new(&global_it, 0, 1);
+	return 0;
+}
+
+SEC("raw_tp")
+__failure __msg("arg#0 expected pointer to an iterator on stack")
+int iter_next_bad_arg(const void *ctx)
+{
+	bpf_iter_num_next(&global_it);
+	return 0;
+}
+
+SEC("raw_tp")
+__failure __msg("arg#0 expected pointer to an iterator on stack")
+int iter_destroy_bad_arg(const void *ctx)
+{
+	bpf_iter_num_destroy(&global_it);
+	return 0;
+}
+
+SEC("raw_tp")
+__success
+int clean_live_states(const void *ctx)
+{
+	char buf[1];
+	int i, j, k, l, m, n, o;
+
+	bpf_for(i, 0, 10)
+	bpf_for(j, 0, 10)
+	bpf_for(k, 0, 10)
+	bpf_for(l, 0, 10)
+	bpf_for(m, 0, 10)
+	bpf_for(n, 0, 10)
+	bpf_for(o, 0, 10) {
+		if (unlikely(bpf_get_prandom_u32()))
+			buf[0] = 42;
+		bpf_printk("%s", buf);
+	}
+	return 0;
+}
+
+SEC("?raw_tp")
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure __msg("misaligned stack access off 0+-31+0 size 8")
+__naked int absent_mark_in_the_middle_state(void)
+{
+	/* This is equivalent to C program below.
+	 *
+	 * r8 = bpf_get_prandom_u32();
+	 * r6 = -32;
+	 * bpf_iter_num_new(&fp[-8], 0, 10);
+	 * if (unlikely(bpf_get_prandom_u32()))
+	 *   r6 = -31;
+	 * while (bpf_iter_num_next(&fp[-8])) {
+	 *   if (unlikely(bpf_get_prandom_u32()))
+	 *     *(fp + r6) = 7;
+	 * }
+	 * bpf_iter_num_destroy(&fp[-8])
+	 * return 0
+	 */
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"r8 = r0;"
+		"r7 = 0;"
+		"r6 = -32;"
+		"r0 = 0;"
+		"*(u64 *)(r10 - 16) = r0;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto change_r6_%=;"
+	"loop_%=:"
+		"call noop;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto use_r6_%=;"
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+	"use_r6_%=:"
+		"r0 = r10;"
+		"r0 += r6;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"goto loop_%=;"
+	"change_r6_%=:"
+		"r6 = -31;"
+		"goto loop_%=;"
+		:
+		: __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy),
+		  __imm(bpf_get_prandom_u32)
+		: __clobber_all
+	);
+}
+
+__used __naked
+static int noop(void)
+{
+	asm volatile (
+		"r0 = 0;"
+		"exit;"
+	);
+}
+
+SEC("?raw_tp")
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure __msg("misaligned stack access off 0+-31+0 size 8")
+__naked int absent_mark_in_the_middle_state2(void)
+{
+	/* This is equivalent to C program below.
+	 *
+	 *     r8 = bpf_get_prandom_u32();
+	 *     r6 = -32;
+	 *     bpf_iter_num_new(&fp[-8], 0, 10);
+	 *     if (unlikely(bpf_get_prandom_u32())) {
+	 *       r6 = -31;
+	 * jump_into_loop:
+	 *       goto +0;
+	 *       goto loop;
+	 *     }
+	 *     if (unlikely(bpf_get_prandom_u32()))
+	 *       goto jump_into_loop;
+	 * loop:
+	 *     while (bpf_iter_num_next(&fp[-8])) {
+	 *       if (unlikely(bpf_get_prandom_u32()))
+	 *         *(fp + r6) = 7;
+	 *     }
+	 *     bpf_iter_num_destroy(&fp[-8])
+	 *     return 0
+	 */
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"r8 = r0;"
+		"r7 = 0;"
+		"r6 = -32;"
+		"r0 = 0;"
+		"*(u64 *)(r10 - 16) = r0;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto change_r6_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto jump_into_loop_%=;"
+	"loop_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto use_r6_%=;"
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+	"use_r6_%=:"
+		"r0 = r10;"
+		"r0 += r6;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"goto loop_%=;"
+	"change_r6_%=:"
+		"r6 = -31;"
+	"jump_into_loop_%=: "
+		"goto +0;"
+		"goto loop_%=;"
+		:
+		: __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_next),
+		  __imm(bpf_iter_num_destroy),
+		  __imm(bpf_get_prandom_u32)
+		: __clobber_all
+	);
+}
+
+SEC("?raw_tp")
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure __msg("misaligned stack access off 0+-31+0 size 8")
+__naked int absent_mark_in_the_middle_state3(void)
+{
+	/*
+	 * bpf_iter_num_new(&fp[-8], 0, 10)
+	 * loop1(-32, &fp[-8])
+	 * loop1_wrapper(&fp[-8])
+	 * bpf_iter_num_destroy(&fp[-8])
+	 */
+	asm volatile (
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		/* call #1 */
+		"r1 = -32;"
+		"r2 = r10;"
+		"r2 += -8;"
+		"call loop1;"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		/* call #2 */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+		"r1 = r10;"
+		"r1 += -8;"
+		"call loop1_wrapper;"
+		/* return */
+		"r1 = r10;"
+		"r1 += -8;"
+		"call %[bpf_iter_num_destroy];"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm(bpf_iter_num_new),
+		  __imm(bpf_iter_num_destroy),
+		  __imm(bpf_get_prandom_u32)
+		: __clobber_all
+	);
+}
+
+__used __naked
+static int loop1(void)
+{
+	/*
+	 *  int loop1(num, iter) {
+	 *     r6 = num;
+	 *     r7 = iter;
+	 *     while (bpf_iter_num_next(r7)) {
+	 *       if (unlikely(bpf_get_prandom_u32()))
+	 *         *(fp + r6) = 7;
+	 *     }
+	 *     return 0
+	 *  }
+	 */
+	asm volatile (
+		"r6 = r1;"
+		"r7 = r2;"
+		"call %[bpf_get_prandom_u32];"
+		"r8 = r0;"
+	"loop_%=:"
+		"r1 = r7;"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto loop_end_%=;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto use_r6_%=;"
+		"goto loop_%=;"
+	"loop_end_%=:"
+		"r0 = 0;"
+		"exit;"
+	"use_r6_%=:"
+		"r0 = r10;"
+		"r0 += r6;"
+		"r1 = 7;"
+		"*(u64 *)(r0 + 0) = r1;"
+		"goto loop_%=;"
+		:
+		: __imm(bpf_iter_num_next),
+		  __imm(bpf_get_prandom_u32)
+		: __clobber_all
+	);
+}
+
+__used __naked
+static int loop1_wrapper(void)
+{
+	/*
+	 *  int loop1_wrapper(iter) {
+	 *    r6 = -32;
+	 *    r7 = iter;
+	 *    if (unlikely(bpf_get_prandom_u32()))
+	 *      r6 = -31;
+	 *    loop1(r6, r7);
+	 *    return 0;
+	 *  }
+	 */
+	asm volatile (
+		"r6 = -32;"
+		"r7 = r1;"
+		"call %[bpf_get_prandom_u32];"
+		"r8 = r0;"
+		"call %[bpf_get_prandom_u32];"
+		"if r0 == r8 goto change_r6_%=;"
+	"loop_%=:"
+		"r1 = r6;"
+		"r2 = r7;"
+		"call loop1;"
+		"r0 = 0;"
+		"exit;"
+	"change_r6_%=:"
+		"r6 = -31;"
+		"goto loop_%=;"
+		:
+		: __imm(bpf_iter_num_next),
+		  __imm(bpf_get_prandom_u32)
+		: __clobber_all
+	);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/iters_css.c b/tools/testing/selftests/bpf/progs/iters_css.c
new file mode 100644
index 000000000000..ec1f6c2f590b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_css.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Chuyi Zhou <zhouchuyi@bytedance.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+pid_t target_pid;
+u64 root_cg_id, leaf_cg_id;
+u64 first_cg_id, last_cg_id;
+
+int pre_order_cnt, post_order_cnt, tree_high;
+
+struct cgroup *bpf_cgroup_from_id(u64 cgid) __ksym;
+void bpf_cgroup_release(struct cgroup *p) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+SEC("fentry.s/" SYS_PREFIX "sys_getpgid")
+int iter_css_for_each(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct cgroup_subsys_state *root_css, *leaf_css, *pos;
+	struct cgroup *root_cgrp, *leaf_cgrp, *cur_cgrp;
+
+	if (cur_task->pid != target_pid)
+		return 0;
+
+	root_cgrp = bpf_cgroup_from_id(root_cg_id);
+
+	if (!root_cgrp)
+		return 0;
+
+	leaf_cgrp = bpf_cgroup_from_id(leaf_cg_id);
+
+	if (!leaf_cgrp) {
+		bpf_cgroup_release(root_cgrp);
+		return 0;
+	}
+	root_css = &root_cgrp->self;
+	leaf_css = &leaf_cgrp->self;
+	pre_order_cnt = post_order_cnt = tree_high = 0;
+	first_cg_id = last_cg_id = 0;
+
+	bpf_rcu_read_lock();
+	bpf_for_each(css, pos, root_css, BPF_CGROUP_ITER_DESCENDANTS_POST) {
+		cur_cgrp = pos->cgroup;
+		post_order_cnt++;
+		last_cg_id = cur_cgrp->kn->id;
+	}
+
+	bpf_for_each(css, pos, root_css, BPF_CGROUP_ITER_DESCENDANTS_PRE) {
+		cur_cgrp = pos->cgroup;
+		pre_order_cnt++;
+		if (!first_cg_id)
+			first_cg_id = cur_cgrp->kn->id;
+	}
+
+	bpf_for_each(css, pos, leaf_css, BPF_CGROUP_ITER_ANCESTORS_UP)
+		tree_high++;
+
+	bpf_for_each(css, pos, root_css, BPF_CGROUP_ITER_ANCESTORS_UP)
+		tree_high--;
+	bpf_rcu_read_unlock();
+	bpf_cgroup_release(root_cgrp);
+	bpf_cgroup_release(leaf_cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_css_task.c b/tools/testing/selftests/bpf/progs/iters_css_task.c
new file mode 100644
index 000000000000..9ac758649cb8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_css_task.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Chuyi Zhou <zhouchuyi@bytedance.com> */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+struct cgroup *bpf_cgroup_from_id(u64 cgid) __ksym;
+void bpf_cgroup_release(struct cgroup *p) __ksym;
+
+pid_t target_pid;
+int css_task_cnt;
+u64 cg_id;
+
+SEC("lsm/file_mprotect")
+int BPF_PROG(iter_css_task_for_each, struct vm_area_struct *vma,
+	    unsigned long reqprot, unsigned long prot, int ret)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct cgroup_subsys_state *css;
+	struct task_struct *task;
+	struct cgroup *cgrp;
+
+	if (cur_task->pid != target_pid)
+		return ret;
+
+	cgrp = bpf_cgroup_from_id(cg_id);
+
+	if (!cgrp)
+		return -EPERM;
+
+	css = &cgrp->self;
+	css_task_cnt = 0;
+
+	bpf_for_each(css_task, task, css, CSS_TASK_ITER_PROCS)
+		if (task->pid == target_pid)
+			css_task_cnt++;
+
+	bpf_cgroup_release(cgrp);
+
+	return -EPERM;
+}
+
+static inline u64 cgroup_id(struct cgroup *cgrp)
+{
+	return cgrp->kn->id;
+}
+
+SEC("?iter/cgroup")
+int cgroup_id_printer(struct bpf_iter__cgroup *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct cgroup *cgrp = ctx->cgroup;
+	struct cgroup_subsys_state *css;
+	struct task_struct *task;
+
+	/* epilogue */
+	if (cgrp == NULL) {
+		BPF_SEQ_PRINTF(seq, "epilogue\n");
+		return 0;
+	}
+
+	/* prologue */
+	if (ctx->meta->seq_num == 0)
+		BPF_SEQ_PRINTF(seq, "prologue\n");
+
+	BPF_SEQ_PRINTF(seq, "%8llu\n", cgroup_id(cgrp));
+
+	css = &cgrp->self;
+	css_task_cnt = 0;
+	bpf_for_each(css_task, task, css, CSS_TASK_ITER_PROCS) {
+		if (task->pid == target_pid)
+			css_task_cnt++;
+	}
+
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int BPF_PROG(iter_css_task_for_each_sleep)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp = bpf_cgroup_from_id(cgrp_id);
+	struct cgroup_subsys_state *css;
+	struct task_struct *task;
+
+	if (cgrp == NULL)
+		return 0;
+	css = &cgrp->self;
+
+	bpf_for_each(css_task, task, css, CSS_TASK_ITER_PROCS) {
+
+	}
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_looping.c b/tools/testing/selftests/bpf/progs/iters_looping.c
new file mode 100644
index 000000000000..d00fd570255a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_looping.c
@@ -0,0 +1,216 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <errno.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define ITER_HELPERS						\
+	  __imm(bpf_iter_num_new),				\
+	  __imm(bpf_iter_num_next),				\
+	  __imm(bpf_iter_num_destroy)
+
+SEC("?raw_tp")
+__success
+int force_clang_to_emit_btf_for_externs(void *ctx)
+{
+	/* we need this as a workaround to enforce compiler emitting BTF
+	 * information for bpf_iter_num_{new,next,destroy}() kfuncs,
+	 * as, apparently, it doesn't emit it for symbols only referenced from
+	 * assembly (or cleanup attribute, for that matter, as well)
+	 */
+	bpf_repeat(0);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__success
+int consume_first_item_only(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* consume first item */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+
+		"if r0 == 0 goto +1;"
+		"r0 = *(u32 *)(r0 + 0);"
+
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("R0 invalid mem access 'scalar'")
+int missing_null_check_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* consume first element */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+
+		/* FAIL: deref with no NULL check */
+		"r1 = *(u32 *)(r0 + 0);"
+
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure
+__msg("invalid access to memory, mem_size=4 off=0 size=8")
+__msg("R0 min value is outside of the allowed memory range")
+int wrong_sized_read_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* consume first element */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+
+		"if r0 == 0 goto +1;"
+		/* FAIL: deref more than available 4 bytes */
+		"r0 = *(u64 *)(r0 + 0);"
+
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+int simplest_loop(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		"r6 = 0;" /* init sum */
+
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+
+	"1:"
+		/* consume next item */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+
+		"if r0 == 0 goto 2f;"
+		"r0 = *(u32 *)(r0 + 0);"
+		"r6 += r0;" /* accumulate sum */
+		"goto 1b;"
+
+	"2:"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common, "r6"
+	);
+
+	return 0;
+}
+
+__used
+static void iterator_with_diff_stack_depth(int x)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		"if r1 == 42 goto 0f;"
+		"*(u64 *)(r10 - 128) = 0;"
+	"0:"
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 10;"
+		"call %[bpf_iter_num_new];"
+	"1:"
+		/* consume next item */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+		"if r0 == 0 goto 2f;"
+		"goto 1b;"
+	"2:"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("socket")
+__success
+__naked int widening_stack_size_bug(void *ctx)
+{
+	/*
+	 * Depending on iterator_with_diff_stack_depth() parameter value,
+	 * subprogram stack depth is either 8 or 128 bytes. Arrange values so
+	 * that it is 128 on a first call and 8 on a second. This triggered a
+	 * bug in verifier's widen_imprecise_scalars() logic.
+	 */
+	asm volatile (
+		"r6 = 0;"
+		"r1 = 0;"
+	"1:"
+		"call iterator_with_diff_stack_depth;"
+		"r1 = 42;"
+		"r6 += 1;"
+		"if r6 < 2 goto 1b;"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_num.c b/tools/testing/selftests/bpf/progs/iters_num.c
new file mode 100644
index 000000000000..7a77a8daee0d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_num.c
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <limits.h>
+#include <linux/errno.h>
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+const volatile __s64 exp_empty_zero = 0 + 1;
+__s64 res_empty_zero;
+
+SEC("raw_tp/sys_enter")
+int num_empty_zero(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, 0, 0) sum += i;
+	res_empty_zero = 1 + sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_empty_int_min = 0 + 2;
+__s64 res_empty_int_min;
+
+SEC("raw_tp/sys_enter")
+int num_empty_int_min(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, INT_MIN, INT_MIN) sum += i;
+	res_empty_int_min = 2 + sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_empty_int_max = 0 + 3;
+__s64 res_empty_int_max;
+
+SEC("raw_tp/sys_enter")
+int num_empty_int_max(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, INT_MAX, INT_MAX) sum += i;
+	res_empty_int_max = 3 + sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_empty_minus_one = 0 + 4;
+__s64 res_empty_minus_one;
+
+SEC("raw_tp/sys_enter")
+int num_empty_minus_one(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, -1, -1) sum += i;
+	res_empty_minus_one = 4 + sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_simple_sum = 9 * 10 / 2;
+__s64 res_simple_sum;
+
+SEC("raw_tp/sys_enter")
+int num_simple_sum(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, 0, 10) sum += i;
+	res_simple_sum = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_neg_sum = -11 * 10 / 2;
+__s64 res_neg_sum;
+
+SEC("raw_tp/sys_enter")
+int num_neg_sum(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, -10, 0) sum += i;
+	res_neg_sum = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_very_neg_sum = INT_MIN + (__s64)(INT_MIN + 1);
+__s64 res_very_neg_sum;
+
+SEC("raw_tp/sys_enter")
+int num_very_neg_sum(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, INT_MIN, INT_MIN + 2) sum += i;
+	res_very_neg_sum = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_very_big_sum = (__s64)(INT_MAX - 1) + (__s64)(INT_MAX - 2);
+__s64 res_very_big_sum;
+
+SEC("raw_tp/sys_enter")
+int num_very_big_sum(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, INT_MAX - 2, INT_MAX) sum += i;
+	res_very_big_sum = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_neg_pos_sum = -3;
+__s64 res_neg_pos_sum;
+
+SEC("raw_tp/sys_enter")
+int num_neg_pos_sum(const void *ctx)
+{
+	__s64 sum = 0, i;
+
+	bpf_for(i, -3, 3) sum += i;
+	res_neg_pos_sum = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_invalid_range = -EINVAL;
+__s64 res_invalid_range;
+
+SEC("raw_tp/sys_enter")
+int num_invalid_range(const void *ctx)
+{
+	struct bpf_iter_num it;
+
+	res_invalid_range = bpf_iter_num_new(&it, 1, 0);
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+const volatile __s64 exp_max_range = 0 + 10;
+__s64 res_max_range;
+
+SEC("raw_tp/sys_enter")
+int num_max_range(const void *ctx)
+{
+	struct bpf_iter_num it;
+
+	res_max_range = 10 + bpf_iter_num_new(&it, 0, BPF_MAX_LOOPS);
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+const volatile __s64 exp_e2big_range = -E2BIG;
+__s64 res_e2big_range;
+
+SEC("raw_tp/sys_enter")
+int num_e2big_range(const void *ctx)
+{
+	struct bpf_iter_num it;
+
+	res_e2big_range = bpf_iter_num_new(&it, -1, BPF_MAX_LOOPS);
+	bpf_iter_num_destroy(&it);
+
+	return 0;
+}
+
+const volatile __s64 exp_succ_elem_cnt = 10;
+__s64 res_succ_elem_cnt;
+
+SEC("raw_tp/sys_enter")
+int num_succ_elem_cnt(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int cnt = 0, *v;
+
+	bpf_iter_num_new(&it, 0, 10);
+	while ((v = bpf_iter_num_next(&it))) {
+		cnt++;
+	}
+	bpf_iter_num_destroy(&it);
+
+	res_succ_elem_cnt = cnt;
+
+	return 0;
+}
+
+const volatile __s64 exp_overfetched_elem_cnt = 5;
+__s64 res_overfetched_elem_cnt;
+
+SEC("raw_tp/sys_enter")
+int num_overfetched_elem_cnt(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int cnt = 0, *v, i;
+
+	bpf_iter_num_new(&it, 0, 5);
+	for (i = 0; i < 10; i++) {
+		v = bpf_iter_num_next(&it);
+		if (v)
+			cnt++;
+	}
+	bpf_iter_num_destroy(&it);
+
+	res_overfetched_elem_cnt = cnt;
+
+	return 0;
+}
+
+const volatile __s64 exp_fail_elem_cnt = 20 + 0;
+__s64 res_fail_elem_cnt;
+
+SEC("raw_tp/sys_enter")
+int num_fail_elem_cnt(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int cnt = 0, *v, i;
+
+	bpf_iter_num_new(&it, 100, 10);
+	for (i = 0; i < 10; i++) {
+		v = bpf_iter_num_next(&it);
+		if (v)
+			cnt++;
+	}
+	bpf_iter_num_destroy(&it);
+
+	res_fail_elem_cnt = 20 + cnt;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/iters_state_safety.c b/tools/testing/selftests/bpf/progs/iters_state_safety.c
new file mode 100644
index 000000000000..d273b46dfc7c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_state_safety.c
@@ -0,0 +1,426 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include <errno.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define ITER_HELPERS						\
+	  __imm(bpf_iter_num_new),				\
+	  __imm(bpf_iter_num_next),				\
+	  __imm(bpf_iter_num_destroy)
+
+SEC("?raw_tp")
+__success
+int force_clang_to_emit_btf_for_externs(void *ctx)
+{
+	/* we need this as a workaround to enforce compiler emitting BTF
+	 * information for bpf_iter_num_{new,next,destroy}() kfuncs,
+	 * as, apparently, it doesn't emit it for symbols only referenced from
+	 * assembly (or cleanup attribute, for that matter, as well)
+	 */
+	bpf_repeat(0);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("fp-8=iter_num(ref_id=1,state=active,depth=0)")
+int create_and_destroy(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("Unreleased reference id=1")
+int create_and_forget_to_destroy_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int destroy_without_creating_fail(void *ctx)
+{
+	/* init with zeros to stop verifier complaining about uninit stack */
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int compromise_iter_w_direct_write_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* directly write over first half of iter state */
+		"*(u64 *)(%[iter] + 0) = r0;"
+
+		/* (attempt to) destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("Unreleased reference id=1")
+int compromise_iter_w_direct_write_and_skip_destroy_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* directly write over first half of iter state */
+		"*(u64 *)(%[iter] + 0) = r0;"
+
+		/* don't destroy iter, leaking ref, which should fail */
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int compromise_iter_w_helper_write_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* overwrite 8th byte with bpf_probe_read_kernel() */
+		"r1 = %[iter];"
+		"r1 += 7;"
+		"r2 = 1;"
+		"r3 = 0;" /* NULL */
+		"call %[bpf_probe_read_kernel];"
+
+		/* (attempt to) destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS, __imm(bpf_probe_read_kernel)
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+static __noinline void subprog_with_iter(void)
+{
+	struct bpf_iter_num iter;
+
+	bpf_iter_num_new(&iter, 0, 1);
+
+	return;
+}
+
+SEC("?raw_tp")
+__failure
+/* ensure there was a call to subprog, which might happen without __noinline */
+__msg("returning from callee:")
+__msg("Unreleased reference id=1")
+int leak_iter_from_subprog_fail(void *ctx)
+{
+	subprog_with_iter();
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("fp-8=iter_num(ref_id=1,state=active,depth=0)")
+int valid_stack_reuse(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+
+		/* now reuse same stack slots */
+
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected uninitialized iter_num as arg #0")
+int double_create_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* (attempt to) create iterator again */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int double_destroy_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		/* (attempt to) destroy iterator again */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int next_without_new_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* don't create iterator and try to iterate*/
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("expected an initialized iter_num as arg #0")
+int next_after_destroy_fail(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* create iterator */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+		/* destroy iterator */
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_destroy];"
+		/* don't create iterator and try to iterate*/
+		"r1 = %[iter];"
+		"call %[bpf_iter_num_next];"
+		:
+		: __imm_ptr(iter), ITER_HELPERS
+		: __clobber_common
+	);
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid read from stack")
+int __naked read_from_iter_slot_fail(void)
+{
+	asm volatile (
+		/* r6 points to struct bpf_iter_num on the stack */
+		"r6 = r10;"
+		"r6 += -24;"
+
+		/* create iterator */
+		"r1 = r6;"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* attempt to leak bpf_iter_num state */
+		"r7 = *(u64 *)(r6 + 0);"
+		"r8 = *(u64 *)(r6 + 8);"
+
+		/* destroy iterator */
+		"r1 = r6;"
+		"call %[bpf_iter_num_destroy];"
+
+		/* leak bpf_iter_num state */
+		"r0 = r7;"
+		"if r7 > r8 goto +1;"
+		"r0 = r8;"
+		"exit;"
+		:
+		: ITER_HELPERS
+		: __clobber_common, "r6", "r7", "r8"
+	);
+}
+
+int zero;
+
+SEC("?raw_tp")
+__failure
+__flag(BPF_F_TEST_STATE_FREQ)
+__msg("Unreleased reference")
+int stacksafe_should_not_conflate_stack_spill_and_iter(void *ctx)
+{
+	struct bpf_iter_num iter;
+
+	asm volatile (
+		/* Create a fork in logic, with general setup as follows:
+		 *   - fallthrough (first) path is valid;
+		 *   - branch (second) path is invalid.
+		 * Then depending on what we do in fallthrough vs branch path,
+		 * we try to detect bugs in func_states_equal(), regsafe(),
+		 * refsafe(), stack_safe(), and similar by tricking verifier
+		 * into believing that branch state is a valid subset of
+		 * a fallthrough state. Verifier should reject overall
+		 * validation, unless there is a bug somewhere in verifier
+		 * logic.
+		 */
+		"call %[bpf_get_prandom_u32];"
+		"r6 = r0;"
+		"call %[bpf_get_prandom_u32];"
+		"r7 = r0;"
+
+		"if r6 > r7 goto bad;" /* fork */
+
+		/* spill r6 into stack slot of bpf_iter_num var */
+		"*(u64 *)(%[iter] + 0) = r6;"
+
+		"goto skip_bad;"
+
+	"bad:"
+		/* create iterator in the same stack slot */
+		"r1 = %[iter];"
+		"r2 = 0;"
+		"r3 = 1000;"
+		"call %[bpf_iter_num_new];"
+
+		/* but then forget about it and overwrite it back to r6 spill */
+		"*(u64 *)(%[iter] + 0) = r6;"
+
+	"skip_bad:"
+		"goto +0;" /* force checkpoint */
+
+		/* corrupt stack slots, if they are really dynptr */
+		"*(u64 *)(%[iter] + 0) = r6;"
+		:
+		: __imm_ptr(iter),
+		  __imm_addr(zero),
+		  __imm(bpf_get_prandom_u32),
+		  __imm(bpf_dynptr_from_mem),
+		  ITER_HELPERS
+		: __clobber_common, "r6", "r7"
+	);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_task.c b/tools/testing/selftests/bpf/progs/iters_task.c
new file mode 100644
index 000000000000..e4d53e40ff20
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_task.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Chuyi Zhou <zhouchuyi@bytedance.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+pid_t target_pid;
+int procs_cnt, threads_cnt, proc_threads_cnt, invalid_cnt;
+
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+SEC("fentry.s/" SYS_PREFIX "sys_getpgid")
+int iter_task_for_each_sleep(void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct task_struct *pos;
+
+	if (cur_task->pid != target_pid)
+		return 0;
+	procs_cnt = threads_cnt = proc_threads_cnt = 0;
+
+	bpf_rcu_read_lock();
+	bpf_for_each(task, pos, NULL, ~0U) {
+		/* Below instructions shouldn't be executed for invalid flags */
+		invalid_cnt++;
+	}
+
+	bpf_for_each(task, pos, NULL, BPF_TASK_ITER_PROC_THREADS) {
+		/* Below instructions shouldn't be executed for invalid task__nullable */
+		invalid_cnt++;
+	}
+
+	bpf_for_each(task, pos, NULL, BPF_TASK_ITER_ALL_PROCS)
+		if (pos->pid == target_pid)
+			procs_cnt++;
+
+	bpf_for_each(task, pos, cur_task, BPF_TASK_ITER_PROC_THREADS)
+		proc_threads_cnt++;
+
+	bpf_for_each(task, pos, NULL, BPF_TASK_ITER_ALL_THREADS)
+		if (pos->tgid == target_pid)
+			threads_cnt++;
+	bpf_rcu_read_unlock();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_task_failure.c b/tools/testing/selftests/bpf/progs/iters_task_failure.c
new file mode 100644
index 000000000000..fe3663dedbe1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_task_failure.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Chuyi Zhou <zhouchuyi@bytedance.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_from_id(u64 cgid) __ksym;
+void bpf_cgroup_release(struct cgroup *p) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_iter_task_new requires RCU critical section protection")
+int BPF_PROG(iter_tasks_without_lock)
+{
+	struct task_struct *pos;
+
+	bpf_for_each(task, pos, NULL, BPF_TASK_ITER_ALL_PROCS) {
+
+	}
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_iter_css_new requires RCU critical section protection")
+int BPF_PROG(iter_css_without_lock)
+{
+	u64 cg_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp = bpf_cgroup_from_id(cg_id);
+	struct cgroup_subsys_state *root_css, *pos;
+
+	if (!cgrp)
+		return 0;
+	root_css = &cgrp->self;
+
+	bpf_for_each(css, pos, root_css, BPF_CGROUP_ITER_DESCENDANTS_POST) {
+
+	}
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("expected an RCU CS when using bpf_iter_task_next")
+int BPF_PROG(iter_tasks_lock_and_unlock)
+{
+	struct task_struct *pos;
+
+	bpf_rcu_read_lock();
+	bpf_for_each(task, pos, NULL, BPF_TASK_ITER_ALL_PROCS) {
+		bpf_rcu_read_unlock();
+
+		bpf_rcu_read_lock();
+	}
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("expected an RCU CS when using bpf_iter_css_next")
+int BPF_PROG(iter_css_lock_and_unlock)
+{
+	u64 cg_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp = bpf_cgroup_from_id(cg_id);
+	struct cgroup_subsys_state *root_css, *pos;
+
+	if (!cgrp)
+		return 0;
+	root_css = &cgrp->self;
+
+	bpf_rcu_read_lock();
+	bpf_for_each(css, pos, root_css, BPF_CGROUP_ITER_DESCENDANTS_POST) {
+		bpf_rcu_read_unlock();
+
+		bpf_rcu_read_lock();
+	}
+	bpf_rcu_read_unlock();
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_getpgid")
+__failure __msg("css_task_iter is only allowed in bpf_lsm, bpf_iter and sleepable progs")
+int BPF_PROG(iter_css_task_for_each)
+{
+	u64 cg_id = bpf_get_current_cgroup_id();
+	struct cgroup *cgrp = bpf_cgroup_from_id(cg_id);
+	struct cgroup_subsys_state *css;
+	struct task_struct *task;
+
+	if (cgrp == NULL)
+		return 0;
+	css = &cgrp->self;
+
+	bpf_for_each(css_task, task, css, CSS_TASK_ITER_PROCS) {
+
+	}
+	bpf_cgroup_release(cgrp);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_task_vma.c b/tools/testing/selftests/bpf/progs/iters_task_vma.c
new file mode 100644
index 000000000000..dc0c3691dcc2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_task_vma.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_experimental.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+pid_t target_pid = 0;
+unsigned int vmas_seen = 0;
+
+struct {
+	__u64 vm_start;
+	__u64 vm_end;
+} vm_ranges[1000];
+
+SEC("raw_tp/sys_enter")
+int iter_task_vma_for_each(const void *ctx)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct vm_area_struct *vma;
+	unsigned int seen = 0;
+
+	if (task->pid != target_pid)
+		return 0;
+
+	if (vmas_seen)
+		return 0;
+
+	bpf_for_each(task_vma, vma, task, 0) {
+		if (bpf_cmp_unlikely(seen, >=, 1000))
+			break;
+
+		vm_ranges[seen].vm_start = vma->vm_start;
+		vm_ranges[seen].vm_end = vma->vm_end;
+		seen++;
+	}
+
+	vmas_seen = seen;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/iters_testmod.c b/tools/testing/selftests/bpf/progs/iters_testmod.c
new file mode 100644
index 000000000000..5379e9960ffd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_testmod.c
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include "bpf_experimental.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("raw_tp/sys_enter")
+__success
+int iter_next_trusted(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct bpf_iter_task_vma vma_it;
+	struct vm_area_struct *vma_ptr;
+
+	bpf_iter_task_vma_new(&vma_it, cur_task, 0);
+
+	vma_ptr = bpf_iter_task_vma_next(&vma_it);
+	if (vma_ptr == NULL)
+		goto out;
+
+	bpf_kfunc_trusted_vma_test(vma_ptr);
+out:
+	bpf_iter_task_vma_destroy(&vma_it);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int iter_next_trusted_or_null(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct bpf_iter_task_vma vma_it;
+	struct vm_area_struct *vma_ptr;
+
+	bpf_iter_task_vma_new(&vma_it, cur_task, 0);
+
+	vma_ptr = bpf_iter_task_vma_next(&vma_it);
+
+	bpf_kfunc_trusted_vma_test(vma_ptr);
+
+	bpf_iter_task_vma_destroy(&vma_it);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+__success
+int iter_next_rcu(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct bpf_iter_task task_it;
+	struct task_struct *task_ptr;
+
+	bpf_iter_task_new(&task_it, cur_task, 0);
+
+	task_ptr = bpf_iter_task_next(&task_it);
+	if (task_ptr == NULL)
+		goto out;
+
+	bpf_kfunc_rcu_task_test(task_ptr);
+out:
+	bpf_iter_task_destroy(&task_it);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int iter_next_rcu_or_null(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct bpf_iter_task task_it;
+	struct task_struct *task_ptr;
+
+	bpf_iter_task_new(&task_it, cur_task, 0);
+
+	task_ptr = bpf_iter_task_next(&task_it);
+
+	bpf_kfunc_rcu_task_test(task_ptr);
+
+	bpf_iter_task_destroy(&task_it);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+__failure __msg("R1 must be referenced or trusted")
+int iter_next_rcu_not_trusted(const void *ctx)
+{
+	struct task_struct *cur_task = bpf_get_current_task_btf();
+	struct bpf_iter_task task_it;
+	struct task_struct *task_ptr;
+
+	bpf_iter_task_new(&task_it, cur_task, 0);
+
+	task_ptr = bpf_iter_task_next(&task_it);
+	if (task_ptr == NULL)
+		goto out;
+
+	bpf_kfunc_trusted_task_test(task_ptr);
+out:
+	bpf_iter_task_destroy(&task_it);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+__failure __msg("R1 cannot write into rdonly_mem")
+/* Message should not be 'R1 cannot write into rdonly_trusted_mem' */
+int iter_next_ptr_mem_not_trusted(const void *ctx)
+{
+	struct bpf_iter_num num_it;
+	int *num_ptr;
+
+	bpf_iter_num_new(&num_it, 0, 10);
+
+	num_ptr = bpf_iter_num_next(&num_it);
+	if (num_ptr == NULL)
+		goto out;
+
+	bpf_kfunc_trusted_num_test(num_ptr);
+out:
+	bpf_iter_num_destroy(&num_it);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_kfunc_ret_rcu_test requires RCU critical section protection")
+int iter_ret_rcu_test_protected(const void *ctx)
+{
+	struct task_struct *p;
+
+	p = bpf_kfunc_ret_rcu_test();
+	return p->pid;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("R1 type=rcu_ptr_or_null_ expected=")
+int iter_ret_rcu_test_type(const void *ctx)
+{
+	struct task_struct *p;
+
+	bpf_rcu_read_lock();
+	p = bpf_kfunc_ret_rcu_test();
+	bpf_this_cpu_ptr(p);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_kfunc_ret_rcu_test_nostruct requires RCU critical section protection")
+int iter_ret_rcu_test_protected_nostruct(const void *ctx)
+{
+	void *p;
+
+	p = bpf_kfunc_ret_rcu_test_nostruct(4);
+	return *(int *)p;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("R1 type=rdonly_rcu_mem_or_null expected=")
+int iter_ret_rcu_test_type_nostruct(const void *ctx)
+{
+	void *p;
+
+	bpf_rcu_read_lock();
+	p = bpf_kfunc_ret_rcu_test_nostruct(4);
+	bpf_this_cpu_ptr(p);
+	bpf_rcu_read_unlock();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/iters_testmod_seq.c b/tools/testing/selftests/bpf/progs/iters_testmod_seq.c
new file mode 100644
index 000000000000..83791348bed5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/iters_testmod_seq.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct bpf_iter_testmod_seq {
+	u64 :64;
+	u64 :64;
+};
+
+extern int bpf_iter_testmod_seq_new(struct bpf_iter_testmod_seq *it, s64 value, int cnt) __ksym;
+extern s64 *bpf_iter_testmod_seq_next(struct bpf_iter_testmod_seq *it) __ksym;
+extern s64 bpf_iter_testmod_seq_value(int blah, struct bpf_iter_testmod_seq *it) __ksym;
+extern void bpf_iter_testmod_seq_destroy(struct bpf_iter_testmod_seq *it) __ksym;
+
+const volatile __s64 exp_empty = 0 + 1;
+__s64 res_empty;
+
+SEC("raw_tp/sys_enter")
+__success __log_level(2)
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=active,depth=0)")
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
+__msg("call bpf_iter_testmod_seq_destroy")
+int testmod_seq_empty(const void *ctx)
+{
+	__s64 sum = 0, *i;
+
+	bpf_for_each(testmod_seq, i, 1000, 0) sum += *i;
+	res_empty = 1 + sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_full = 1000000;
+__s64 res_full;
+
+SEC("raw_tp/sys_enter")
+__success __log_level(2)
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=active,depth=0)")
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
+__msg("call bpf_iter_testmod_seq_destroy")
+int testmod_seq_full(const void *ctx)
+{
+	__s64 sum = 0, *i;
+
+	bpf_for_each(testmod_seq, i, 1000, 1000) sum += *i;
+	res_full = sum;
+
+	return 0;
+}
+
+const volatile __s64 exp_truncated = 10 * 1000000;
+__s64 res_truncated;
+
+static volatile int zero = 0;
+
+SEC("raw_tp/sys_enter")
+__success __log_level(2)
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=active,depth=0)")
+__msg("fp-16=iter_testmod_seq(ref_id=1,state=drained,depth=0)")
+__msg("call bpf_iter_testmod_seq_destroy")
+int testmod_seq_truncated(const void *ctx)
+{
+	__s64 sum = 0, *i;
+	int cnt = zero;
+
+	bpf_for_each(testmod_seq, i, 10, 2000000) {
+		sum += *i;
+		cnt++;
+		if (cnt >= 1000000)
+			break;
+	}
+	res_truncated = sum;
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure
+__msg("expected an initialized iter_testmod_seq as arg #1")
+int testmod_seq_getter_before_bad(const void *ctx)
+{
+	struct bpf_iter_testmod_seq it;
+
+	return bpf_iter_testmod_seq_value(0, &it);
+}
+
+SEC("?raw_tp")
+__failure
+__msg("expected an initialized iter_testmod_seq as arg #1")
+int testmod_seq_getter_after_bad(const void *ctx)
+{
+	struct bpf_iter_testmod_seq it;
+	s64 sum = 0, *v;
+
+	bpf_iter_testmod_seq_new(&it, 100, 100);
+
+	while ((v = bpf_iter_testmod_seq_next(&it))) {
+		sum += *v;
+	}
+
+	bpf_iter_testmod_seq_destroy(&it);
+
+	return sum + bpf_iter_testmod_seq_value(0, &it);
+}
+
+SEC("?socket")
+__success __retval(1000000)
+int testmod_seq_getter_good(const void *ctx)
+{
+	struct bpf_iter_testmod_seq it;
+	s64 sum = 0, *v;
+
+	bpf_iter_testmod_seq_new(&it, 100, 100);
+
+	while ((v = bpf_iter_testmod_seq_next(&it))) {
+		sum += *v;
+	}
+
+	sum *= bpf_iter_testmod_seq_value(0, &it);
+
+	bpf_iter_testmod_seq_destroy(&it);
+
+	return sum;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c b/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c
new file mode 100644
index 000000000000..4d619bea9c75
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/jeq_infer_not_null_fail.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#ifndef __clang__
+#pragma GCC diagnostic ignored "-Warray-bounds"
+#endif
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, u64);
+	__type(value, u64);
+} m_hash SEC(".maps");
+
+SEC("?raw_tp")
+__failure __msg("R8 invalid mem access 'map_value_or_null")
+int jeq_infer_not_null_ptr_to_btfid(void *ctx)
+{
+	struct bpf_map *map = (struct bpf_map *)&m_hash;
+	struct bpf_map *inner_map = map->inner_map_meta;
+	u64 key = 0, ret = 0, *val;
+
+	val = bpf_map_lookup_elem(map, &key);
+	/* Do not mark ptr as non-null if one of them is
+	 * PTR_TO_BTF_ID (R9), reject because of invalid
+	 * access to map value (R8).
+	 *
+	 * Here, we need to inline those insns to access
+	 * R8 directly, since compiler may use other reg
+	 * once it figures out val==inner_map.
+	 */
+	asm volatile("r8 = %[val];\n"
+		     "r9 = %[inner_map];\n"
+		     "if r8 != r9 goto +1;\n"
+		     "%[ret] = *(u64 *)(r8 +0);\n"
+		     : [ret] "+r"(ret)
+		     : [inner_map] "r"(inner_map), [val] "r"(val)
+		     : "r8", "r9");
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/jit_probe_mem.c b/tools/testing/selftests/bpf/progs/jit_probe_mem.c
new file mode 100644
index 000000000000..82190d79de37
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/jit_probe_mem.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+static struct prog_test_ref_kfunc __kptr *v;
+long total_sum = -1;
+
+SEC("tc")
+int test_jit_probe_mem(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	unsigned long zero = 0, sum;
+
+	p = bpf_kfunc_call_test_acquire(&zero);
+	if (!p)
+		return 1;
+
+	p = bpf_kptr_xchg(&v, p);
+	if (p)
+		goto release_out;
+
+	/* Direct map value access of kptr, should be PTR_UNTRUSTED */
+	p = v;
+	if (!p)
+		return 1;
+
+	asm volatile (
+		"r9 = %[p];"
+		"%[sum] = 0;"
+
+		/* r8 = p->a */
+		"r8 = *(u32 *)(r9 + 0);"
+		"%[sum] += r8;"
+
+		/* r8 = p->b */
+		"r8 = *(u32 *)(r9 + 4);"
+		"%[sum] += r8;"
+
+		"r9 += 8;"
+		/* r9 = p->a */
+		"r9 = *(u32 *)(r9 - 8);"
+		"%[sum] += r9;"
+
+		: [sum] "=r"(sum)
+		: [p] "r"(p)
+		: "r8", "r9"
+	);
+
+	total_sum = sum;
+	return 0;
+release_out:
+	bpf_kfunc_call_test_release(p);
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfree_skb.c b/tools/testing/selftests/bpf/progs/kfree_skb.c
new file mode 100644
index 000000000000..7236da72ce80
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfree_skb.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, int);
+	__type(value, int);
+} perf_buf_map SEC(".maps");
+
+#define _(P) (__builtin_preserve_access_index(P))
+
+/* define few struct-s that bpf program needs to access */
+struct callback_head {
+	struct callback_head *next;
+	void (*func)(struct callback_head *head);
+};
+struct dev_ifalias {
+	struct callback_head rcuhead;
+};
+
+struct net_device /* same as kernel's struct net_device */ {
+	int ifindex;
+	struct dev_ifalias *ifalias;
+};
+
+typedef struct {
+        int counter;
+} atomic_t;
+typedef struct refcount_struct {
+        atomic_t refs;
+} refcount_t;
+
+struct sk_buff {
+	/* field names and sizes should match to those in the kernel */
+	unsigned int len, data_len;
+	__u16 mac_len, hdr_len, queue_mapping;
+	struct net_device *dev;
+	/* order of the fields doesn't matter */
+	refcount_t users;
+	unsigned char *data;
+	char __pkt_type_offset[0];
+	char cb[48];
+};
+
+struct meta {
+	int ifindex;
+	__u32 cb32_0;
+	__u8 cb8_0;
+};
+
+/* TRACE_EVENT(kfree_skb,
+ *         TP_PROTO(struct sk_buff *skb, void *location),
+ */
+SEC("tp_btf/kfree_skb")
+int BPF_PROG(trace_kfree_skb, struct sk_buff *skb, void *location)
+{
+	struct net_device *dev;
+	struct callback_head *ptr;
+	void *func;
+	int users;
+	unsigned char *data;
+	unsigned short pkt_data;
+	struct meta meta = {};
+	char pkt_type;
+	__u32 *cb32;
+	__u8 *cb8;
+
+	__builtin_preserve_access_index(({
+		users = skb->users.refs.counter;
+		data = skb->data;
+		dev = skb->dev;
+		ptr = dev->ifalias->rcuhead.next;
+		func = ptr->func;
+		cb8 = (__u8 *)&skb->cb;
+		cb32 = (__u32 *)&skb->cb;
+	}));
+
+	meta.ifindex = _(dev->ifindex);
+	meta.cb8_0 = cb8[8];
+	meta.cb32_0 = cb32[2];
+
+	bpf_probe_read_kernel(&pkt_type, sizeof(pkt_type), _(&skb->__pkt_type_offset));
+	pkt_type &= 7;
+
+	/* read eth proto */
+	bpf_probe_read_kernel(&pkt_data, sizeof(pkt_data), data + 12);
+
+	bpf_printk("rcuhead.next %llx func %llx\n", ptr, func);
+	bpf_printk("skb->len %d users %d pkt_type %x\n",
+		   _(skb->len), users, pkt_type);
+	bpf_printk("skb->queue_mapping %d\n", _(skb->queue_mapping));
+	bpf_printk("dev->ifindex %d data %llx pkt_data %x\n",
+		   meta.ifindex, data, pkt_data);
+	bpf_printk("cb8_0:%x cb32_0:%x\n", meta.cb8_0, meta.cb32_0);
+
+	if (users != 1 || pkt_data != bpf_htons(0x86dd) || meta.ifindex != 1)
+		/* raw tp ignores return value */
+		return 0;
+
+	/* send first 72 byte of the packet to user space */
+	bpf_skb_output(skb, &perf_buf_map, (72ull << 32) | BPF_F_CURRENT_CPU,
+		       &meta, sizeof(meta));
+	return 0;
+}
+
+struct {
+	bool fentry_test_ok;
+	bool fexit_test_ok;
+} result = {};
+
+SEC("fentry/eth_type_trans")
+int BPF_PROG(fentry_eth_type_trans, struct sk_buff *skb, struct net_device *dev,
+	     unsigned short protocol)
+{
+	int len, ifindex;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+		ifindex = dev->ifindex;
+	}));
+
+	/* fentry sees full packet including L2 header */
+	if (len != 74 || ifindex != 1)
+		return 0;
+	result.fentry_test_ok = true;
+	return 0;
+}
+
+SEC("fexit/eth_type_trans")
+int BPF_PROG(fexit_eth_type_trans, struct sk_buff *skb, struct net_device *dev,
+	     unsigned short protocol)
+{
+	int len, ifindex;
+
+	__builtin_preserve_access_index(({
+		len = skb->len;
+		ifindex = dev->ifindex;
+	}));
+
+	/* fexit sees packet without L2 header that eth_type_trans should have
+	 * consumed.
+	 */
+	if (len != 60 || protocol != bpf_htons(0x86dd) || ifindex != 1)
+		return 0;
+	result.fexit_test_ok = true;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_destructive.c b/tools/testing/selftests/bpf/progs/kfunc_call_destructive.c
new file mode 100644
index 000000000000..b9670e9a6e3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_destructive.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("tc")
+int kfunc_destructive_test(void)
+{
+	bpf_kfunc_call_test_destructive();
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_fail.c b/tools/testing/selftests/bpf/progs/kfunc_call_fail.c
new file mode 100644
index 000000000000..a1963497f0bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_fail.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+struct syscall_test_args {
+	__u8 data[16];
+	size_t size;
+};
+
+SEC("?syscall")
+int kfunc_syscall_test_fail(struct syscall_test_args *args)
+{
+	bpf_kfunc_call_test_mem_len_pass1(&args->data, sizeof(*args) + 1);
+
+	return 0;
+}
+
+SEC("?syscall")
+int kfunc_syscall_test_null_fail(struct syscall_test_args *args)
+{
+	/* Must be called with args as a NULL pointer
+	 * we do not check for it to have the verifier consider that
+	 * the pointer might not be null, and so we can load it.
+	 *
+	 * So the following can not be added:
+	 *
+	 * if (args)
+	 *      return -22;
+	 */
+
+	bpf_kfunc_call_test_mem_len_pass1(args, sizeof(*args));
+
+	return 0;
+}
+
+SEC("?tc")
+int kfunc_call_test_get_mem_fail_rdonly(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		p = bpf_kfunc_call_test_get_rdonly_mem(pt, 2 * sizeof(int));
+		if (p)
+			p[0] = 42; /* this is a read-only buffer, so -EACCES */
+		else
+			ret = -1;
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+SEC("?tc")
+int kfunc_call_test_get_mem_fail_use_after_free(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		p = bpf_kfunc_call_test_get_rdwr_mem(pt, 2 * sizeof(int));
+		if (p) {
+			p[0] = 42;
+			ret = p[1]; /* 108 */
+		} else {
+			ret = -1;
+		}
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	if (p)
+		ret = p[0]; /* p is not valid anymore */
+
+	return ret;
+}
+
+SEC("?tc")
+int kfunc_call_test_get_mem_fail_oob(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		p = bpf_kfunc_call_test_get_rdonly_mem(pt, 2 * sizeof(int));
+		if (p)
+			ret = p[2 * sizeof(int)]; /* oob access, so -EACCES */
+		else
+			ret = -1;
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+int not_const_size = 2 * sizeof(int);
+
+SEC("?tc")
+int kfunc_call_test_get_mem_fail_not_const(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		p = bpf_kfunc_call_test_get_rdonly_mem(pt, not_const_size); /* non const size, -EINVAL */
+		if (p)
+			ret = p[0];
+		else
+			ret = -1;
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+SEC("?tc")
+int kfunc_call_test_mem_acquire_fail(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		/* we are failing on this one, because we are not acquiring a PTR_TO_BTF_ID (a struct ptr) */
+		p = bpf_kfunc_call_test_acq_rdonly_mem(pt, 2 * sizeof(int));
+		if (p)
+			ret = p[0];
+		else
+			ret = -1;
+
+		bpf_kfunc_call_int_mem_release(p);
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+SEC("?tc")
+int kfunc_call_test_pointer_arg_type_mismatch(struct __sk_buff *skb)
+{
+	bpf_kfunc_call_test_pass_ctx((void *)10);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_race.c b/tools/testing/selftests/bpf/progs/kfunc_call_race.c
new file mode 100644
index 000000000000..48f64827cd93
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_race.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("tc")
+int kfunc_call_fail(struct __sk_buff *ctx)
+{
+	bpf_testmod_test_mod_kfunc(0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_test.c b/tools/testing/selftests/bpf/progs/kfunc_call_test.c
new file mode 100644
index 000000000000..8b86113a0126
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_test.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("tc")
+int kfunc_call_test4(struct __sk_buff *skb)
+{
+	struct bpf_sock *sk = skb->sk;
+	long tmp;
+
+	if (!sk)
+		return -1;
+
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		return -1;
+
+	tmp = bpf_kfunc_call_test4(-3, -30, -200, -1000);
+	return (tmp >> 32) + tmp;
+}
+
+SEC("tc")
+int kfunc_call_test2(struct __sk_buff *skb)
+{
+	struct bpf_sock *sk = skb->sk;
+
+	if (!sk)
+		return -1;
+
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		return -1;
+
+	return bpf_kfunc_call_test2((struct sock *)sk, 1, 2);
+}
+
+SEC("tc")
+int kfunc_call_test1(struct __sk_buff *skb)
+{
+	struct bpf_sock *sk = skb->sk;
+	__u64 a = 1ULL << 32;
+	__u32 ret;
+
+	if (!sk)
+		return -1;
+
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		return -1;
+
+	a = bpf_kfunc_call_test1((struct sock *)sk, 1, a | 2, 3, a | 4);
+	ret = a >> 32;   /* ret should be 2 */
+	ret += (__u32)a; /* ret should be 12 */
+
+	return ret;
+}
+
+SEC("tc")
+int kfunc_call_test_ref_btf_id(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		if (pt->a != 42 || pt->b != 108)
+			ret = -1;
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+SEC("tc")
+int kfunc_call_test_pass(struct __sk_buff *skb)
+{
+	struct prog_test_pass1 p1 = {};
+	struct prog_test_pass2 p2 = {};
+	short a = 0;
+	__u64 b = 0;
+	long c = 0;
+	char d = 0;
+	int e = 0;
+
+	bpf_kfunc_call_test_pass_ctx(skb);
+	bpf_kfunc_call_test_pass1(&p1);
+	bpf_kfunc_call_test_pass2(&p2);
+
+	bpf_kfunc_call_test_mem_len_pass1(&a, sizeof(a));
+	bpf_kfunc_call_test_mem_len_pass1(&b, sizeof(b));
+	bpf_kfunc_call_test_mem_len_pass1(&c, sizeof(c));
+	bpf_kfunc_call_test_mem_len_pass1(&d, sizeof(d));
+	bpf_kfunc_call_test_mem_len_pass1(&e, sizeof(e));
+	bpf_kfunc_call_test_mem_len_fail2(&b, -1);
+
+	return 0;
+}
+
+struct syscall_test_args {
+	__u8 data[16];
+	size_t size;
+};
+
+SEC("syscall")
+int kfunc_syscall_test(struct syscall_test_args *args)
+{
+	const long size = args->size;
+
+	if (size > sizeof(args->data))
+		return -7; /* -E2BIG */
+
+	bpf_kfunc_call_test_mem_len_pass1(&args->data, sizeof(args->data));
+	bpf_kfunc_call_test_mem_len_pass1(&args->data, sizeof(*args));
+	bpf_kfunc_call_test_mem_len_pass1(&args->data, size);
+
+	return 0;
+}
+
+SEC("syscall")
+int kfunc_syscall_test_null(struct syscall_test_args *args)
+{
+	/* Must be called with args as a NULL pointer
+	 * we do not check for it to have the verifier consider that
+	 * the pointer might not be null, and so we can load it.
+	 *
+	 * So the following can not be added:
+	 *
+	 * if (args)
+	 *      return -22;
+	 */
+
+	bpf_kfunc_call_test_mem_len_pass1(args, 0);
+
+	return 0;
+}
+
+SEC("tc")
+int kfunc_call_test_get_mem(struct __sk_buff *skb)
+{
+	struct prog_test_ref_kfunc *pt;
+	unsigned long s = 0;
+	int *p = NULL;
+	int ret = 0;
+
+	pt = bpf_kfunc_call_test_acquire(&s);
+	if (pt) {
+		p = bpf_kfunc_call_test_get_rdwr_mem(pt, 2 * sizeof(int));
+		if (p) {
+			p[0] = 42;
+			ret = p[1]; /* 108 */
+		} else {
+			ret = -1;
+		}
+
+		if (ret >= 0) {
+			p = bpf_kfunc_call_test_get_rdonly_mem(pt, 2 * sizeof(int));
+			if (p)
+				ret = p[0]; /* 42 */
+			else
+				ret = -1;
+		}
+
+		bpf_kfunc_call_test_release(pt);
+	}
+	return ret;
+}
+
+SEC("tc")
+int kfunc_call_test_static_unused_arg(struct __sk_buff *skb)
+{
+
+	u32 expected = 5, actual;
+
+	actual = bpf_kfunc_call_test_static_unused_arg(expected, 0xdeadbeef);
+	return actual != expected ? -1 : 0;
+}
+
+struct ctx_val {
+	struct bpf_testmod_ctx __kptr *ctx;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct ctx_val);
+} ctx_map SEC(".maps");
+
+SEC("tc")
+int kfunc_call_ctx(struct __sk_buff *skb)
+{
+	struct bpf_testmod_ctx *ctx;
+	int err = 0;
+
+	ctx = bpf_testmod_ctx_create(&err);
+	if (!ctx && !err)
+		err = -1;
+	if (ctx) {
+		int key = 0;
+		struct ctx_val *ctx_val = bpf_map_lookup_elem(&ctx_map, &key);
+
+		/* Transfer ctx to map to be freed via implicit dtor call
+		 * on cleanup.
+		 */
+		if (ctx_val)
+			ctx = bpf_kptr_xchg(&ctx_val->ctx, ctx);
+		if (ctx) {
+			bpf_testmod_ctx_release(ctx);
+			err = -1;
+		}
+	}
+	return err;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c b/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c
new file mode 100644
index 000000000000..8e150e85b50d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_call_test_subprog.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+extern const int bpf_prog_active __ksym;
+int active_res = -1;
+int sk_state_res = -1;
+
+int __noinline f1(struct __sk_buff *skb)
+{
+	struct bpf_sock *sk = skb->sk;
+	int *active;
+
+	if (!sk)
+		return -1;
+
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		return -1;
+
+	active = (int *)bpf_per_cpu_ptr(&bpf_prog_active,
+					bpf_get_smp_processor_id());
+	if (active)
+		active_res = *active;
+
+	sk_state_res = bpf_kfunc_call_test3((struct sock *)sk)->__sk_common.skc_state;
+
+	return (__u32)bpf_kfunc_call_test1((struct sock *)sk, 1, 2, 3, 4);
+}
+
+SEC("tc")
+int kfunc_call_test1(struct __sk_buff *skb)
+{
+	return f1(skb);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kfunc_module_order.c b/tools/testing/selftests/bpf/progs/kfunc_module_order.c
new file mode 100644
index 000000000000..76003d04c95f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kfunc_module_order.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+extern int bpf_test_modorder_retx(void) __ksym;
+extern int bpf_test_modorder_rety(void) __ksym;
+
+SEC("classifier")
+int call_kfunc_xy(struct __sk_buff *skb)
+{
+	int ret1, ret2;
+
+	ret1 = bpf_test_modorder_retx();
+	ret2 = bpf_test_modorder_rety();
+
+	return ret1 == 'x' && ret2 == 'y' ? 0 : -1;
+}
+
+SEC("classifier")
+int call_kfunc_yx(struct __sk_buff *skb)
+{
+	int ret1, ret2;
+
+	ret1 = bpf_test_modorder_rety();
+	ret2 = bpf_test_modorder_retx();
+
+	return ret1 == 'y' && ret2 == 'x' ? 0 : -1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/kmem_cache_iter.c b/tools/testing/selftests/bpf/progs/kmem_cache_iter.c
new file mode 100644
index 000000000000..b9c8f9457492
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kmem_cache_iter.c
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define SLAB_NAME_MAX  32
+
+struct kmem_cache_result {
+	char name[SLAB_NAME_MAX];
+	long obj_size;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(key_size, sizeof(void *));
+	__uint(value_size, SLAB_NAME_MAX);
+	__uint(max_entries, 1);
+} slab_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(struct kmem_cache_result));
+	__uint(max_entries, 1024);
+} slab_result SEC(".maps");
+
+extern struct kmem_cache *bpf_get_kmem_cache(u64 addr) __ksym;
+
+/* Result, will be checked by userspace */
+int task_struct_found;
+int kmem_cache_seen;
+int open_coded_seen;
+
+SEC("iter/kmem_cache")
+int slab_info_collector(struct bpf_iter__kmem_cache *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct kmem_cache *s = ctx->s;
+	struct kmem_cache_result *r;
+	int idx;
+
+	if (s) {
+		/* To make sure if the slab_iter implements the seq interface
+		 * properly and it's also useful for debugging.
+		 */
+		BPF_SEQ_PRINTF(seq, "%s: %u\n", s->name, s->size);
+
+		idx = kmem_cache_seen;
+		r = bpf_map_lookup_elem(&slab_result, &idx);
+		if (r == NULL)
+			return 0;
+
+		kmem_cache_seen++;
+
+		/* Save name and size to match /proc/slabinfo */
+		bpf_probe_read_kernel_str(r->name, sizeof(r->name), s->name);
+		r->obj_size = s->size;
+
+		if (!bpf_strncmp(r->name, 11, "task_struct"))
+			bpf_map_update_elem(&slab_hash, &s, r->name, BPF_NOEXIST);
+	}
+
+	return 0;
+}
+
+SEC("raw_tp/bpf_test_finish")
+int BPF_PROG(check_task_struct)
+{
+	u64 curr = bpf_get_current_task();
+	struct kmem_cache *s;
+	char *name;
+
+	s = bpf_get_kmem_cache(curr);
+	if (s == NULL) {
+		task_struct_found = -1;
+		return 0;
+	}
+	name = bpf_map_lookup_elem(&slab_hash, &s);
+	if (name && !bpf_strncmp(name, 11, "task_struct"))
+		task_struct_found = 1;
+	else
+		task_struct_found = -2;
+	return 0;
+}
+
+SEC("syscall")
+int open_coded_iter(const void *ctx)
+{
+	struct kmem_cache *s;
+
+	bpf_for_each(kmem_cache, s) {
+		struct kmem_cache_result *r;
+
+		r = bpf_map_lookup_elem(&slab_result, &open_coded_seen);
+		if (!r)
+			break;
+
+		if (r->obj_size != s->size)
+			break;
+
+		open_coded_seen++;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi.c b/tools/testing/selftests/bpf/progs/kprobe_multi.c
new file mode 100644
index 000000000000..9e1ca8e34913
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+
+char _license[] SEC("license") = "GPL";
+
+extern const void bpf_fentry_test1 __ksym;
+extern const void bpf_fentry_test2 __ksym;
+extern const void bpf_fentry_test3 __ksym;
+extern const void bpf_fentry_test4 __ksym;
+extern const void bpf_fentry_test5 __ksym;
+extern const void bpf_fentry_test6 __ksym;
+extern const void bpf_fentry_test7 __ksym;
+extern const void bpf_fentry_test8 __ksym;
+
+int pid = 0;
+bool test_cookie = false;
+
+__u64 kprobe_test1_result = 0;
+__u64 kprobe_test2_result = 0;
+__u64 kprobe_test3_result = 0;
+__u64 kprobe_test4_result = 0;
+__u64 kprobe_test5_result = 0;
+__u64 kprobe_test6_result = 0;
+__u64 kprobe_test7_result = 0;
+__u64 kprobe_test8_result = 0;
+
+__u64 kretprobe_test1_result = 0;
+__u64 kretprobe_test2_result = 0;
+__u64 kretprobe_test3_result = 0;
+__u64 kretprobe_test4_result = 0;
+__u64 kretprobe_test5_result = 0;
+__u64 kretprobe_test6_result = 0;
+__u64 kretprobe_test7_result = 0;
+__u64 kretprobe_test8_result = 0;
+
+static void kprobe_multi_check(void *ctx, bool is_return)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	__u64 cookie = test_cookie ? bpf_get_attach_cookie(ctx) : 0;
+	__u64 addr = bpf_get_func_ip(ctx);
+
+#define SET(__var, __addr, __cookie) ({			\
+	if (((const void *) addr == __addr) &&		\
+	     (!test_cookie || (cookie == __cookie)))	\
+		__var = 1;				\
+})
+
+	if (is_return) {
+		SET(kretprobe_test1_result, &bpf_fentry_test1, 8);
+		SET(kretprobe_test2_result, &bpf_fentry_test2, 2);
+		SET(kretprobe_test3_result, &bpf_fentry_test3, 7);
+		SET(kretprobe_test4_result, &bpf_fentry_test4, 6);
+		SET(kretprobe_test5_result, &bpf_fentry_test5, 5);
+		SET(kretprobe_test6_result, &bpf_fentry_test6, 4);
+		SET(kretprobe_test7_result, &bpf_fentry_test7, 3);
+		SET(kretprobe_test8_result, &bpf_fentry_test8, 1);
+	} else {
+		SET(kprobe_test1_result, &bpf_fentry_test1, 1);
+		SET(kprobe_test2_result, &bpf_fentry_test2, 7);
+		SET(kprobe_test3_result, &bpf_fentry_test3, 2);
+		SET(kprobe_test4_result, &bpf_fentry_test4, 3);
+		SET(kprobe_test5_result, &bpf_fentry_test5, 4);
+		SET(kprobe_test6_result, &bpf_fentry_test6, 5);
+		SET(kprobe_test7_result, &bpf_fentry_test7, 6);
+		SET(kprobe_test8_result, &bpf_fentry_test8, 8);
+	}
+
+#undef SET
+}
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+SEC("kprobe.multi/bpf_fentry_tes??")
+int test_kprobe(struct pt_regs *ctx)
+{
+	kprobe_multi_check(ctx, false);
+	return 0;
+}
+
+SEC("kretprobe.multi/bpf_fentry_test*")
+int test_kretprobe(struct pt_regs *ctx)
+{
+	kprobe_multi_check(ctx, true);
+	return 0;
+}
+
+SEC("kprobe.multi")
+int test_kprobe_manual(struct pt_regs *ctx)
+{
+	kprobe_multi_check(ctx, false);
+	return 0;
+}
+
+SEC("kretprobe.multi")
+int test_kretprobe_manual(struct pt_regs *ctx)
+{
+	kprobe_multi_check(ctx, true);
+	return 0;
+}
+
+extern const void bpf_testmod_fentry_test1 __ksym;
+extern const void bpf_testmod_fentry_test2 __ksym;
+extern const void bpf_testmod_fentry_test3 __ksym;
+
+__u64 kprobe_testmod_test1_result = 0;
+__u64 kprobe_testmod_test2_result = 0;
+__u64 kprobe_testmod_test3_result = 0;
+
+__u64 kretprobe_testmod_test1_result = 0;
+__u64 kretprobe_testmod_test2_result = 0;
+__u64 kretprobe_testmod_test3_result = 0;
+
+static void kprobe_multi_testmod_check(void *ctx, bool is_return)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return;
+
+	__u64 addr = bpf_get_func_ip(ctx);
+
+	if (is_return) {
+		if ((const void *) addr == &bpf_testmod_fentry_test1)
+			kretprobe_testmod_test1_result = 1;
+		if ((const void *) addr == &bpf_testmod_fentry_test2)
+			kretprobe_testmod_test2_result = 1;
+		if ((const void *) addr == &bpf_testmod_fentry_test3)
+			kretprobe_testmod_test3_result = 1;
+	} else {
+		if ((const void *) addr == &bpf_testmod_fentry_test1)
+			kprobe_testmod_test1_result = 1;
+		if ((const void *) addr == &bpf_testmod_fentry_test2)
+			kprobe_testmod_test2_result = 1;
+		if ((const void *) addr == &bpf_testmod_fentry_test3)
+			kprobe_testmod_test3_result = 1;
+	}
+}
+
+SEC("kprobe.multi")
+int test_kprobe_testmod(struct pt_regs *ctx)
+{
+	kprobe_multi_testmod_check(ctx, false);
+	return 0;
+}
+
+SEC("kretprobe.multi")
+int test_kretprobe_testmod(struct pt_regs *ctx)
+{
+	kprobe_multi_testmod_check(ctx, true);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_empty.c b/tools/testing/selftests/bpf/progs/kprobe_multi_empty.c
new file mode 100644
index 000000000000..e76e499aca39
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_empty.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("kprobe.multi/")
+int test_kprobe_empty(struct pt_regs *ctx)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_override.c b/tools/testing/selftests/bpf/progs/kprobe_multi_override.c
new file mode 100644
index 000000000000..28f8487c9059
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_override.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("kprobe.multi")
+int test_override(struct pt_regs *ctx)
+{
+	bpf_override_return(ctx, 123);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_session.c b/tools/testing/selftests/bpf/progs/kprobe_multi_session.c
new file mode 100644
index 000000000000..bd8b7fb7061e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_session.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+extern const void bpf_fentry_test1 __ksym;
+extern const void bpf_fentry_test2 __ksym;
+extern const void bpf_fentry_test3 __ksym;
+extern const void bpf_fentry_test4 __ksym;
+extern const void bpf_fentry_test5 __ksym;
+extern const void bpf_fentry_test6 __ksym;
+extern const void bpf_fentry_test7 __ksym;
+extern const void bpf_fentry_test8 __ksym;
+
+int pid = 0;
+
+__u64 kprobe_session_result[8];
+
+static int session_check(void *ctx)
+{
+	unsigned int i;
+	__u64 addr;
+	const void *kfuncs[] = {
+		&bpf_fentry_test1,
+		&bpf_fentry_test2,
+		&bpf_fentry_test3,
+		&bpf_fentry_test4,
+		&bpf_fentry_test5,
+		&bpf_fentry_test6,
+		&bpf_fentry_test7,
+		&bpf_fentry_test8,
+	};
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	addr = bpf_get_func_ip(ctx);
+
+	for (i = 0; i < ARRAY_SIZE(kfuncs); i++) {
+		if (kfuncs[i] == (void *) addr) {
+			kprobe_session_result[i]++;
+			break;
+		}
+	}
+
+	/*
+	 * Force probes for function bpf_fentry_test[5-8] not to
+	 * install and execute the return probe
+	 */
+	if (((const void *) addr == &bpf_fentry_test5) ||
+	    ((const void *) addr == &bpf_fentry_test6) ||
+	    ((const void *) addr == &bpf_fentry_test7) ||
+	    ((const void *) addr == &bpf_fentry_test8))
+		return 1;
+
+	return 0;
+}
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+SEC("kprobe.session/bpf_fentry_test*")
+int test_kprobe(struct pt_regs *ctx)
+{
+	return session_check(ctx);
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c
new file mode 100644
index 000000000000..0835b5edf685
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_session_cookie.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+
+__u64 test_kprobe_1_result = 0;
+__u64 test_kprobe_2_result = 0;
+__u64 test_kprobe_3_result = 0;
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+static int check_cookie(__u64 val, __u64 *result)
+{
+	__u64 *cookie;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	cookie = bpf_session_cookie();
+
+	if (bpf_session_is_return())
+		*result = *cookie == val ? val : 0;
+	else
+		*cookie = val;
+	return 0;
+}
+
+SEC("kprobe.session/bpf_fentry_test1")
+int test_kprobe_1(struct pt_regs *ctx)
+{
+	return check_cookie(1, &test_kprobe_1_result);
+}
+
+SEC("kprobe.session/bpf_fentry_test1")
+int test_kprobe_2(struct pt_regs *ctx)
+{
+	return check_cookie(2, &test_kprobe_2_result);
+}
+
+SEC("kprobe.session/bpf_fentry_test1")
+int test_kprobe_3(struct pt_regs *ctx)
+{
+	return check_cookie(3, &test_kprobe_3_result);
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c b/tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c
new file mode 100644
index 000000000000..288577e81deb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_multi_verifier.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/usdt.bpf.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+
+SEC("kprobe.session")
+__success
+int kprobe_session_return_0(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe.session")
+__success
+int kprobe_session_return_1(struct pt_regs *ctx)
+{
+	return 1;
+}
+
+SEC("kprobe.session")
+__failure
+__msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int kprobe_session_return_2(struct pt_regs *ctx)
+{
+	return 2;
+}
diff --git a/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c b/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c
new file mode 100644
index 000000000000..f77aef0474d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kprobe_write_ctx.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#if defined(__TARGET_ARCH_x86)
+SEC("kprobe")
+int kprobe_write_ctx(struct pt_regs *ctx)
+{
+	ctx->ax = 0;
+	return 0;
+}
+
+SEC("kprobe.multi")
+int kprobe_multi_write_ctx(struct pt_regs *ctx)
+{
+	ctx->ax = 0;
+	return 0;
+}
+#endif
diff --git a/tools/testing/selftests/bpf/progs/kptr_xchg_inline.c b/tools/testing/selftests/bpf/progs/kptr_xchg_inline.c
new file mode 100644
index 000000000000..2414ac20b6d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/kptr_xchg_inline.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct bin_data {
+	char blob[32];
+};
+
+#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
+private(kptr) struct bin_data __kptr * ptr;
+
+SEC("tc")
+__naked int kptr_xchg_inline(void)
+{
+	asm volatile (
+		"r1 = %[ptr] ll;"
+		"r2 = 0;"
+		"call %[bpf_kptr_xchg];"
+		"if r0 == 0 goto 1f;"
+		"r1 = r0;"
+		"r2 = 0;"
+		"call %[bpf_obj_drop_impl];"
+	"1:"
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm_addr(ptr),
+		  __imm(bpf_kptr_xchg),
+		  __imm(bpf_obj_drop_impl)
+		: __clobber_all
+	);
+}
+
+/* BTF FUNC records are not generated for kfuncs referenced
+ * from inline assembly. These records are necessary for
+ * libbpf to link the program. The function below is a hack
+ * to ensure that BTF FUNC records are generated.
+ */
+void __btf_root(void)
+{
+	bpf_obj_drop(NULL);
+}
diff --git a/tools/testing/selftests/bpf/progs/ksym_race.c b/tools/testing/selftests/bpf/progs/ksym_race.c
new file mode 100644
index 000000000000..def97f2fed90
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/ksym_race.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+extern int bpf_testmod_ksym_percpu __ksym;
+
+SEC("tc")
+int ksym_fail(struct __sk_buff *ctx)
+{
+	return *(int *)bpf_this_cpu_ptr(&bpf_testmod_ksym_percpu);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_funcs1.c b/tools/testing/selftests/bpf/progs/linked_funcs1.c
new file mode 100644
index 000000000000..049a1f78de3f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_funcs1.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+/* weak and shared between two files */
+const volatile __u32 my_tid __weak;
+long syscall_id __weak;
+
+int output_val1;
+int output_ctx1;
+int output_weak1;
+
+/* same "subprog" name in all files, but it's ok because they all are static */
+static __noinline int subprog(int x)
+{
+	/* but different formula */
+	return x * 1;
+}
+
+/* Global functions can't be void */
+int set_output_val1(int x)
+{
+	output_val1 = x + subprog(x);
+	return x;
+}
+
+/* This function can't be verified as global, as it assumes raw_tp/sys_enter
+ * context and accesses syscall id (second argument). So we mark it as
+ * __hidden, so that libbpf will mark it as static in the final object file,
+ * right before verifying it in the kernel.
+ *
+ * But we don't mark it as __hidden here, rather at extern site. __hidden is
+ * "contaminating" visibility, so it will get propagated from either extern or
+ * actual definition (including from the losing __weak definition).
+ */
+void set_output_ctx1(__u64 *ctx)
+{
+	output_ctx1 = ctx[1]; /* long id, same as in BPF_PROG below */
+}
+
+/* this weak instance should win because it's the first one */
+__weak int set_output_weak(int x)
+{
+	static volatile int whatever;
+
+	/* make sure we use CO-RE relocations in a weak function, this used to
+	 * cause problems for BPF static linker
+	 */
+	whatever = bpf_core_type_size(struct task_struct);
+	__sink(whatever);
+
+	output_weak1 = x;
+	return x;
+}
+
+extern int set_output_val2(int x);
+
+/* here we'll force set_output_ctx2() to be __hidden in the final obj file */
+__hidden extern void set_output_ctx2(__u64 *ctx);
+
+void *bpf_cast_to_kern_ctx(void *obj) __ksym;
+
+SEC("?raw_tp/sys_enter")
+int BPF_PROG(handler1, struct pt_regs *regs, long id)
+{
+	static volatile int whatever;
+
+	if (my_tid != (u32)bpf_get_current_pid_tgid() || id != syscall_id)
+		return 0;
+
+	/* make sure we have CO-RE relocations in main program */
+	whatever = bpf_core_type_size(struct task_struct);
+	__sink(whatever);
+
+	set_output_val2(1000);
+	set_output_ctx2(ctx); /* ctx definition is hidden in BPF_PROG macro */
+
+	/* keep input value the same across both files to avoid dependency on
+	 * handler call order; differentiate by output_weak1 vs output_weak2.
+	 */
+	set_output_weak(42);
+
+	return 0;
+}
+
+/* Generate BTF FUNC record and test linking with duplicate extern functions */
+void kfunc_gen1(void)
+{
+	bpf_cast_to_kern_ctx(0);
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_funcs2.c b/tools/testing/selftests/bpf/progs/linked_funcs2.c
new file mode 100644
index 000000000000..96850759fd8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_funcs2.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+/* weak and shared between both files */
+const volatile int my_tid __weak;
+long syscall_id __weak;
+
+int output_val2;
+int output_ctx2;
+int output_weak2; /* should stay zero */
+
+/* same "subprog" name in all files, but it's ok because they all are static */
+static __noinline int subprog(int x)
+{
+	/* but different formula */
+	return x * 2;
+}
+
+/* Global functions can't be void */
+int set_output_val2(int x)
+{
+	output_val2 = 2 * x + 2 * subprog(x);
+	return 2 * x;
+}
+
+/* This function can't be verified as global, as it assumes raw_tp/sys_enter
+ * context and accesses syscall id (second argument). So we mark it as
+ * __hidden, so that libbpf will mark it as static in the final object file,
+ * right before verifying it in the kernel.
+ *
+ * But we don't mark it as __hidden here, rather at extern site. __hidden is
+ * "contaminating" visibility, so it will get propagated from either extern or
+ * actual definition (including from the losing __weak definition).
+ */
+void set_output_ctx2(__u64 *ctx)
+{
+	output_ctx2 = ctx[1]; /* long id, same as in BPF_PROG below */
+}
+
+/* this weak instance should lose, because it will be processed second */
+__weak int set_output_weak(int x)
+{
+	static volatile int whatever;
+
+	/* make sure we use CO-RE relocations in a weak function, this used to
+	 * cause problems for BPF static linker
+	 */
+	whatever = 2 * bpf_core_type_size(struct task_struct);
+	__sink(whatever);
+
+	output_weak2 = x;
+	return 2 * x;
+}
+
+extern int set_output_val1(int x);
+
+/* here we'll force set_output_ctx1() to be __hidden in the final obj file */
+__hidden extern void set_output_ctx1(__u64 *ctx);
+
+void *bpf_cast_to_kern_ctx(void *obj) __ksym;
+
+SEC("?raw_tp/sys_enter")
+int BPF_PROG(handler2, struct pt_regs *regs, long id)
+{
+	static volatile int whatever;
+
+	if (my_tid != (s32)bpf_get_current_pid_tgid() || id != syscall_id)
+		return 0;
+
+	/* make sure we have CO-RE relocations in main program */
+	whatever = bpf_core_type_size(struct task_struct);
+	__sink(whatever);
+
+	set_output_val1(2000);
+	set_output_ctx1(ctx); /* ctx definition is hidden in BPF_PROG macro */
+
+	/* keep input value the same across both files to avoid dependency on
+	 * handler call order; differentiate by output_weak1 vs output_weak2.
+	 */
+	set_output_weak(42);
+
+	return 0;
+}
+
+/* Generate BTF FUNC record and test linking with duplicate extern functions */
+void kfunc_gen2(void)
+{
+	bpf_cast_to_kern_ctx(0);
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_list.c b/tools/testing/selftests/bpf/progs/linked_list.c
new file mode 100644
index 000000000000..421f40835acd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_list.c
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+#include "linked_list.h"
+
+struct head_nested_inner {
+	struct bpf_spin_lock lock;
+	struct bpf_list_head head __contains(foo, node2);
+};
+
+struct head_nested {
+	int dummy;
+	struct head_nested_inner inner;
+};
+
+private(C) struct bpf_spin_lock glock_c;
+private(C) struct bpf_list_head ghead_array[2] __contains(foo, node2);
+private(C) struct bpf_list_head ghead_array_one[1] __contains(foo, node2);
+
+private(D) struct head_nested ghead_nested;
+
+static __always_inline
+int list_push_pop(struct bpf_spin_lock *lock, struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 2;
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		bpf_obj_drop(f);
+		return 3;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		bpf_obj_drop(f);
+		return 4;
+	}
+
+
+	bpf_spin_lock(lock);
+	f->data = 42;
+	bpf_list_push_front(head, &f->node2);
+	bpf_spin_unlock(lock);
+	if (leave_in_map)
+		return 0;
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 5;
+	f = container_of(n, struct foo, node2);
+	if (f->data != 42) {
+		bpf_obj_drop(f);
+		return 6;
+	}
+
+	bpf_spin_lock(lock);
+	f->data = 13;
+	bpf_list_push_front(head, &f->node2);
+	bpf_spin_unlock(lock);
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 7;
+	f = container_of(n, struct foo, node2);
+	if (f->data != 13) {
+		bpf_obj_drop(f);
+		return 8;
+	}
+	bpf_obj_drop(f);
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		return 9;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		return 10;
+	}
+	return 0;
+}
+
+
+static __always_inline
+int list_push_pop_multiple(struct bpf_spin_lock *lock, struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct foo *f[200], *pf;
+	int i;
+
+	/* Loop following this check adds nodes 2-at-a-time in order to
+	 * validate multiple release_on_unlock release logic
+	 */
+	if (ARRAY_SIZE(f) % 2)
+		return 10;
+
+	for (i = 0; i < ARRAY_SIZE(f); i += 2) {
+		f[i] = bpf_obj_new(typeof(**f));
+		if (!f[i])
+			return 2;
+		f[i]->data = i;
+
+		f[i + 1] = bpf_obj_new(typeof(**f));
+		if (!f[i + 1]) {
+			bpf_obj_drop(f[i]);
+			return 9;
+		}
+		f[i + 1]->data = i + 1;
+
+		bpf_spin_lock(lock);
+		bpf_list_push_front(head, &f[i]->node2);
+		bpf_list_push_front(head, &f[i + 1]->node2);
+		bpf_spin_unlock(lock);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(f); i++) {
+		bpf_spin_lock(lock);
+		n = bpf_list_pop_front(head);
+		bpf_spin_unlock(lock);
+		if (!n)
+			return 3;
+		pf = container_of(n, struct foo, node2);
+		if (pf->data != (ARRAY_SIZE(f) - i - 1)) {
+			bpf_obj_drop(pf);
+			return 4;
+		}
+		bpf_spin_lock(lock);
+		bpf_list_push_back(head, &pf->node2);
+		bpf_spin_unlock(lock);
+	}
+
+	if (leave_in_map)
+		return 0;
+
+	for (i = 0; i < ARRAY_SIZE(f); i++) {
+		bpf_spin_lock(lock);
+		n = bpf_list_pop_back(head);
+		bpf_spin_unlock(lock);
+		if (!n)
+			return 5;
+		pf = container_of(n, struct foo, node2);
+		if (pf->data != i) {
+			bpf_obj_drop(pf);
+			return 6;
+		}
+		bpf_obj_drop(pf);
+	}
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_back(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		return 7;
+	}
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (n) {
+		bpf_obj_drop(container_of(n, struct foo, node2));
+		return 8;
+	}
+	return 0;
+}
+
+static __always_inline
+int list_in_list(struct bpf_spin_lock *lock, struct bpf_list_head *head, bool leave_in_map)
+{
+	struct bpf_list_node *n;
+	struct bar *ba[8], *b;
+	struct foo *f;
+	int i;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 2;
+	for (i = 0; i < ARRAY_SIZE(ba); i++) {
+		b = bpf_obj_new(typeof(*b));
+		if (!b) {
+			bpf_obj_drop(f);
+			return 3;
+		}
+		b->data = i;
+		bpf_spin_lock(&f->lock);
+		bpf_list_push_back(&f->head, &b->node);
+		bpf_spin_unlock(&f->lock);
+	}
+
+	bpf_spin_lock(lock);
+	f->data = 42;
+	bpf_list_push_front(head, &f->node2);
+	bpf_spin_unlock(lock);
+
+	if (leave_in_map)
+		return 0;
+
+	bpf_spin_lock(lock);
+	n = bpf_list_pop_front(head);
+	bpf_spin_unlock(lock);
+	if (!n)
+		return 4;
+	f = container_of(n, struct foo, node2);
+	if (f->data != 42) {
+		bpf_obj_drop(f);
+		return 5;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(ba); i++) {
+		bpf_spin_lock(&f->lock);
+		n = bpf_list_pop_front(&f->head);
+		bpf_spin_unlock(&f->lock);
+		if (!n) {
+			bpf_obj_drop(f);
+			return 6;
+		}
+		b = container_of(n, struct bar, node);
+		if (b->data != i) {
+			bpf_obj_drop(f);
+			bpf_obj_drop(b);
+			return 7;
+		}
+		bpf_obj_drop(b);
+	}
+	bpf_spin_lock(&f->lock);
+	n = bpf_list_pop_front(&f->head);
+	bpf_spin_unlock(&f->lock);
+	if (n) {
+		bpf_obj_drop(f);
+		bpf_obj_drop(container_of(n, struct bar, node));
+		return 8;
+	}
+	bpf_obj_drop(f);
+	return 0;
+}
+
+static __always_inline
+int test_list_push_pop(struct bpf_spin_lock *lock, struct bpf_list_head *head)
+{
+	int ret;
+
+	ret = list_push_pop(lock, head, false);
+	if (ret)
+		return ret;
+	return list_push_pop(lock, head, true);
+}
+
+static __always_inline
+int test_list_push_pop_multiple(struct bpf_spin_lock *lock, struct bpf_list_head *head)
+{
+	int ret;
+
+	ret = list_push_pop_multiple(lock, head, false);
+	if (ret)
+		return ret;
+	return list_push_pop_multiple(lock, head, true);
+}
+
+static __always_inline
+int test_list_in_list(struct bpf_spin_lock *lock, struct bpf_list_head *head)
+{
+	int ret;
+
+	ret = list_in_list(lock, head, false);
+	if (ret)
+		return ret;
+	return list_in_list(lock, head, true);
+}
+
+SEC("tc")
+int map_list_push_pop(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_push_pop(&v->lock, &v->head);
+}
+
+SEC("tc")
+int inner_map_list_push_pop(void *ctx)
+{
+	struct map_value *v;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &(int){0});
+	if (!map)
+		return 1;
+	v = bpf_map_lookup_elem(map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_push_pop(&v->lock, &v->head);
+}
+
+SEC("tc")
+int global_list_push_pop(void *ctx)
+{
+	return test_list_push_pop(&glock, &ghead);
+}
+
+SEC("tc")
+int global_list_push_pop_nested(void *ctx)
+{
+	return test_list_push_pop(&ghead_nested.inner.lock, &ghead_nested.inner.head);
+}
+
+SEC("tc")
+int global_list_array_push_pop(void *ctx)
+{
+	int r;
+
+	r = test_list_push_pop(&glock_c, &ghead_array[0]);
+	if (r)
+		return r;
+
+	r = test_list_push_pop(&glock_c, &ghead_array[1]);
+	if (r)
+		return r;
+
+	/* Arrays with only one element is a special case, being treated
+	 * just like a bpf_list_head variable by the verifier, not an
+	 * array.
+	 */
+	return test_list_push_pop(&glock_c, &ghead_array_one[0]);
+}
+
+SEC("tc")
+int map_list_push_pop_multiple(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_push_pop_multiple(&v->lock, &v->head);
+}
+
+SEC("tc")
+int inner_map_list_push_pop_multiple(void *ctx)
+{
+	struct map_value *v;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &(int){0});
+	if (!map)
+		return 1;
+	v = bpf_map_lookup_elem(map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_push_pop_multiple(&v->lock, &v->head);
+}
+
+SEC("tc")
+int global_list_push_pop_multiple(void *ctx)
+{
+	int ret;
+
+	ret = list_push_pop_multiple(&glock, &ghead, false);
+	if (ret)
+		return ret;
+	return list_push_pop_multiple(&glock, &ghead, true);
+}
+
+SEC("tc")
+int map_list_in_list(void *ctx)
+{
+	struct map_value *v;
+
+	v = bpf_map_lookup_elem(&array_map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_in_list(&v->lock, &v->head);
+}
+
+SEC("tc")
+int inner_map_list_in_list(void *ctx)
+{
+	struct map_value *v;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &(int){0});
+	if (!map)
+		return 1;
+	v = bpf_map_lookup_elem(map, &(int){0});
+	if (!v)
+		return 1;
+	return test_list_in_list(&v->lock, &v->head);
+}
+
+SEC("tc")
+int global_list_in_list(void *ctx)
+{
+	return test_list_in_list(&glock, &ghead);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_list.h b/tools/testing/selftests/bpf/progs/linked_list.h
new file mode 100644
index 000000000000..c0f3609a7ffa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_list.h
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef LINKED_LIST_H
+#define LINKED_LIST_H
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+
+struct bar {
+	struct bpf_list_node node;
+	int data;
+};
+
+struct foo {
+	struct bpf_list_node node;
+	struct bpf_list_head head __contains(bar, node);
+	struct bpf_spin_lock lock;
+	int data;
+	struct bpf_list_node node2;
+};
+
+struct map_value {
+	struct bpf_spin_lock lock;
+	int data;
+	struct bpf_list_head head __contains(foo, node2);
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+};
+
+struct array_map array_map SEC(".maps");
+struct array_map inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct array_map);
+} map_of_maps SEC(".maps") = {
+	.values = {
+		[0] = &inner_map,
+	},
+};
+
+#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
+
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_list_head ghead __contains(foo, node2);
+private(B) struct bpf_spin_lock glock2;
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/linked_list_fail.c b/tools/testing/selftests/bpf/progs/linked_list_fail.c
new file mode 100644
index 000000000000..ddd26d1a083f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_list_fail.c
@@ -0,0 +1,611 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+#include "linked_list.h"
+
+#define INIT                                                  \
+	struct map_value *v, *v2, *iv, *iv2;                  \
+	struct foo *f, *f1, *f2;                              \
+	struct bar *b;                                        \
+	void *map;                                            \
+                                                              \
+	map = bpf_map_lookup_elem(&map_of_maps, &(int){ 0 }); \
+	if (!map)                                             \
+		return 0;                                     \
+	v = bpf_map_lookup_elem(&array_map, &(int){ 0 });     \
+	if (!v)                                               \
+		return 0;                                     \
+	v2 = bpf_map_lookup_elem(&array_map, &(int){ 0 });    \
+	if (!v2)                                              \
+		return 0;                                     \
+	iv = bpf_map_lookup_elem(map, &(int){ 0 });           \
+	if (!iv)                                              \
+		return 0;                                     \
+	iv2 = bpf_map_lookup_elem(map, &(int){ 0 });          \
+	if (!iv2)                                             \
+		return 0;                                     \
+	f = bpf_obj_new(typeof(*f));                          \
+	if (!f)                                               \
+		return 0;                                     \
+	f1 = f;                                               \
+	f2 = bpf_obj_new(typeof(*f2));                        \
+	if (!f2) {                                            \
+		bpf_obj_drop(f1);                             \
+		return 0;                                     \
+	}                                                     \
+	b = bpf_obj_new(typeof(*b));                          \
+	if (!b) {                                             \
+		bpf_obj_drop(f2);                             \
+		bpf_obj_drop(f1);                             \
+		return 0;                                     \
+	}
+
+#define CHECK(test, op, hexpr)                              \
+	SEC("?tc")                                          \
+	int test##_missing_lock_##op(void *ctx)             \
+	{                                                   \
+		INIT;                                       \
+		void (*p)(void *) = (void *)&bpf_list_##op; \
+		p(hexpr);                                   \
+		return 0;                                   \
+	}
+
+CHECK(kptr, pop_front, &f->head);
+CHECK(kptr, pop_back, &f->head);
+
+CHECK(global, pop_front, &ghead);
+CHECK(global, pop_back, &ghead);
+
+CHECK(map, pop_front, &v->head);
+CHECK(map, pop_back, &v->head);
+
+CHECK(inner_map, pop_front, &iv->head);
+CHECK(inner_map, pop_back, &iv->head);
+
+#undef CHECK
+
+#define CHECK(test, op, hexpr, nexpr)					\
+	SEC("?tc")							\
+	int test##_missing_lock_##op(void *ctx)				\
+	{								\
+		INIT;							\
+		bpf_list_##op(hexpr, nexpr);				\
+		return 0;						\
+	}
+
+CHECK(kptr, push_front, &f->head, &b->node);
+CHECK(kptr, push_back, &f->head, &b->node);
+
+CHECK(global, push_front, &ghead, &f->node2);
+CHECK(global, push_back, &ghead, &f->node2);
+
+CHECK(map, push_front, &v->head, &f->node2);
+CHECK(map, push_back, &v->head, &f->node2);
+
+CHECK(inner_map, push_front, &iv->head, &f->node2);
+CHECK(inner_map, push_back, &iv->head, &f->node2);
+
+#undef CHECK
+
+#define CHECK(test, op, lexpr, hexpr)                       \
+	SEC("?tc")                                          \
+	int test##_incorrect_lock_##op(void *ctx)           \
+	{                                                   \
+		INIT;                                       \
+		void (*p)(void *) = (void *)&bpf_list_##op; \
+		bpf_spin_lock(lexpr);                       \
+		p(hexpr);                                   \
+		return 0;                                   \
+	}
+
+#define CHECK_OP(op)                                           \
+	CHECK(kptr_kptr, op, &f1->lock, &f2->head);            \
+	CHECK(kptr_global, op, &f1->lock, &ghead);             \
+	CHECK(kptr_map, op, &f1->lock, &v->head);              \
+	CHECK(kptr_inner_map, op, &f1->lock, &iv->head);       \
+                                                               \
+	CHECK(global_global, op, &glock2, &ghead);             \
+	CHECK(global_kptr, op, &glock, &f1->head);             \
+	CHECK(global_map, op, &glock, &v->head);               \
+	CHECK(global_inner_map, op, &glock, &iv->head);        \
+                                                               \
+	CHECK(map_map, op, &v->lock, &v2->head);               \
+	CHECK(map_kptr, op, &v->lock, &f2->head);              \
+	CHECK(map_global, op, &v->lock, &ghead);               \
+	CHECK(map_inner_map, op, &v->lock, &iv->head);         \
+                                                               \
+	CHECK(inner_map_inner_map, op, &iv->lock, &iv2->head); \
+	CHECK(inner_map_kptr, op, &iv->lock, &f2->head);       \
+	CHECK(inner_map_global, op, &iv->lock, &ghead);        \
+	CHECK(inner_map_map, op, &iv->lock, &v->head);
+
+CHECK_OP(pop_front);
+CHECK_OP(pop_back);
+
+#undef CHECK
+#undef CHECK_OP
+
+#define CHECK(test, op, lexpr, hexpr, nexpr)				\
+	SEC("?tc")							\
+	int test##_incorrect_lock_##op(void *ctx)			\
+	{								\
+		INIT;							\
+		bpf_spin_lock(lexpr);					\
+		bpf_list_##op(hexpr, nexpr);				\
+		return 0;						\
+	}
+
+#define CHECK_OP(op)							\
+	CHECK(kptr_kptr, op, &f1->lock, &f2->head, &b->node);		\
+	CHECK(kptr_global, op, &f1->lock, &ghead, &f->node2);		\
+	CHECK(kptr_map, op, &f1->lock, &v->head, &f->node2);		\
+	CHECK(kptr_inner_map, op, &f1->lock, &iv->head, &f->node2);	\
+									\
+	CHECK(global_global, op, &glock2, &ghead, &f->node2);		\
+	CHECK(global_kptr, op, &glock, &f1->head, &b->node);		\
+	CHECK(global_map, op, &glock, &v->head, &f->node2);		\
+	CHECK(global_inner_map, op, &glock, &iv->head, &f->node2);	\
+									\
+	CHECK(map_map, op, &v->lock, &v2->head, &f->node2);		\
+	CHECK(map_kptr, op, &v->lock, &f2->head, &b->node);		\
+	CHECK(map_global, op, &v->lock, &ghead, &f->node2);		\
+	CHECK(map_inner_map, op, &v->lock, &iv->head, &f->node2);	\
+									\
+	CHECK(inner_map_inner_map, op, &iv->lock, &iv2->head, &f->node2);\
+	CHECK(inner_map_kptr, op, &iv->lock, &f2->head, &b->node);	\
+	CHECK(inner_map_global, op, &iv->lock, &ghead, &f->node2);	\
+	CHECK(inner_map_map, op, &iv->lock, &v->head, &f->node2);
+
+CHECK_OP(push_front);
+CHECK_OP(push_back);
+
+#undef CHECK
+#undef CHECK_OP
+#undef INIT
+
+SEC("?kprobe/xyz")
+int map_compat_kprobe(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?kretprobe/xyz")
+int map_compat_kretprobe(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?tracepoint/xyz")
+int map_compat_tp(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?perf_event")
+int map_compat_perf(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?raw_tp/xyz")
+int map_compat_raw_tp(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?raw_tp.w/xyz")
+int map_compat_raw_tp_w(void *ctx)
+{
+	bpf_list_push_front(&ghead, NULL);
+	return 0;
+}
+
+SEC("?tc")
+int obj_type_id_oor(void *ctx)
+{
+	bpf_obj_new_impl(~0UL, NULL);
+	return 0;
+}
+
+SEC("?tc")
+int obj_new_no_composite(void *ctx)
+{
+	bpf_obj_new_impl(bpf_core_type_id_local(int), (void *)42);
+	return 0;
+}
+
+SEC("?tc")
+int obj_new_no_struct(void *ctx)
+{
+	(void)bpf_obj_new(union { int data; unsigned udata; });
+	return 0;
+}
+
+SEC("?tc")
+int obj_drop_non_zero_off(void *ctx)
+{
+	void *f;
+
+	f = bpf_obj_new(struct foo);
+	if (!f)
+		return 0;
+	bpf_obj_drop(f+1);
+	return 0;
+}
+
+SEC("?tc")
+int new_null_ret(void *ctx)
+{
+	return bpf_obj_new(struct foo)->data;
+}
+
+SEC("?tc")
+int obj_new_acq(void *ctx)
+{
+	(void)bpf_obj_new(struct foo);
+	return 0;
+}
+
+SEC("?tc")
+int use_after_drop(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_obj_drop(f);
+	return f->data;
+}
+
+SEC("?tc")
+int ptr_walk_scalar(void *ctx)
+{
+	struct test1 {
+		struct test2 {
+			struct test2 *next;
+		} *ptr;
+	} *p;
+
+	p = bpf_obj_new(typeof(*p));
+	if (!p)
+		return 0;
+	bpf_this_cpu_ptr(p->ptr);
+	return 0;
+}
+
+SEC("?tc")
+int direct_read_lock(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	return *(int *)&f->lock;
+}
+
+SEC("?tc")
+int direct_write_lock(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	*(int *)&f->lock = 0;
+	return 0;
+}
+
+SEC("?tc")
+int direct_read_head(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	return *(int *)&f->head;
+}
+
+SEC("?tc")
+int direct_write_head(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	*(int *)&f->head = 0;
+	return 0;
+}
+
+SEC("?tc")
+int direct_read_node(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	return *(int *)&f->node2;
+}
+
+SEC("?tc")
+int direct_write_node(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	*(int *)&f->node2 = 0;
+	return 0;
+}
+
+static __always_inline
+int use_after_unlock(bool push_front)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	f->data = 42;
+	if (push_front)
+		bpf_list_push_front(&ghead, &f->node2);
+	else
+		bpf_list_push_back(&ghead, &f->node2);
+	bpf_spin_unlock(&glock);
+
+	return f->data;
+}
+
+SEC("?tc")
+int use_after_unlock_push_front(void *ctx)
+{
+	return use_after_unlock(true);
+}
+
+SEC("?tc")
+int use_after_unlock_push_back(void *ctx)
+{
+	return use_after_unlock(false);
+}
+
+static __always_inline
+int list_double_add(bool push_front)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	if (push_front) {
+		bpf_list_push_front(&ghead, &f->node2);
+		bpf_list_push_front(&ghead, &f->node2);
+	} else {
+		bpf_list_push_back(&ghead, &f->node2);
+		bpf_list_push_back(&ghead, &f->node2);
+	}
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int double_push_front(void *ctx)
+{
+	return list_double_add(true);
+}
+
+SEC("?tc")
+int double_push_back(void *ctx)
+{
+	return list_double_add(false);
+}
+
+SEC("?tc")
+int no_node_value_type(void *ctx)
+{
+	void *p;
+
+	p = bpf_obj_new(struct { int data; });
+	if (!p)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(&ghead, p);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_value_type(void *ctx)
+{
+	struct bar *b;
+
+	b = bpf_obj_new(typeof(*b));
+	if (!b)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(&ghead, &b->node);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_node_var_off(struct __sk_buff *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(&ghead, (void *)&f->node2 + ctx->protocol);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_node_off1(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(&ghead, (void *)&f->node2 + 1);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_node_off2(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(&ghead, &f->node);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int no_head_type(void *ctx)
+{
+	void *p;
+
+	p = bpf_obj_new(typeof(struct { int data; }));
+	if (!p)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front(p, NULL);
+	bpf_spin_lock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_head_var_off1(struct __sk_buff *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front((void *)&ghead + ctx->protocol, &f->node2);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_head_var_off2(struct __sk_buff *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_spin_lock(&glock);
+	bpf_list_push_front((void *)&f->head + ctx->protocol, &f->node2);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_head_off1(void *ctx)
+{
+	struct foo *f;
+	struct bar *b;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	b = bpf_obj_new(typeof(*b));
+	if (!b) {
+		bpf_obj_drop(f);
+		return 0;
+	}
+
+	bpf_spin_lock(&f->lock);
+	bpf_list_push_front((void *)&f->head + 1, &b->node);
+	bpf_spin_unlock(&f->lock);
+
+	return 0;
+}
+
+SEC("?tc")
+int incorrect_head_off2(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+
+	bpf_spin_lock(&glock);
+	bpf_list_push_front((void *)&ghead + 1, &f->node2);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+static __always_inline
+int pop_ptr_off(void *(*op)(void *head))
+{
+	struct {
+		struct bpf_list_head head __contains(foo, node2);
+		struct bpf_spin_lock lock;
+	} *p;
+	struct bpf_list_node *n;
+
+	p = bpf_obj_new(typeof(*p));
+	if (!p)
+		return 0;
+	bpf_spin_lock(&p->lock);
+	n = op(&p->head);
+	bpf_spin_unlock(&p->lock);
+
+	if (!n)
+		return 0;
+	bpf_spin_lock((void *)n);
+	return 0;
+}
+
+SEC("?tc")
+int pop_front_off(void *ctx)
+{
+	return pop_ptr_off((void *)bpf_list_pop_front);
+}
+
+SEC("?tc")
+int pop_back_off(void *ctx)
+{
+	return pop_ptr_off((void *)bpf_list_pop_back);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_list_peek.c b/tools/testing/selftests/bpf/progs/linked_list_peek.c
new file mode 100644
index 000000000000..264e81bfb287
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_list_peek.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct node_data {
+	struct bpf_list_node l;
+	int key;
+};
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_list_head ghead __contains(node_data, l);
+
+#define list_entry(ptr, type, member) container_of(ptr, type, member)
+#define NR_NODES 16
+
+int zero = 0;
+
+SEC("syscall")
+__retval(0)
+long list_peek(void *ctx)
+{
+	struct bpf_list_node *l_n;
+	struct node_data *n;
+	int i, err = 0;
+
+	bpf_spin_lock(&glock);
+	l_n = bpf_list_front(&ghead);
+	bpf_spin_unlock(&glock);
+	if (l_n)
+		return __LINE__;
+
+	bpf_spin_lock(&glock);
+	l_n = bpf_list_back(&ghead);
+	bpf_spin_unlock(&glock);
+	if (l_n)
+		return __LINE__;
+
+	for (i = zero; i < NR_NODES && can_loop; i++) {
+		n = bpf_obj_new(typeof(*n));
+		if (!n)
+			return __LINE__;
+		n->key = i;
+		bpf_spin_lock(&glock);
+		bpf_list_push_back(&ghead, &n->l);
+		bpf_spin_unlock(&glock);
+	}
+
+	bpf_spin_lock(&glock);
+
+	l_n = bpf_list_front(&ghead);
+	if (!l_n) {
+		err = __LINE__;
+		goto done;
+	}
+
+	n = list_entry(l_n, struct node_data, l);
+	if (n->key != 0) {
+		err = __LINE__;
+		goto done;
+	}
+
+	l_n = bpf_list_back(&ghead);
+	if (!l_n) {
+		err = __LINE__;
+		goto done;
+	}
+
+	n = list_entry(l_n, struct node_data, l);
+	if (n->key != NR_NODES - 1) {
+		err = __LINE__;
+		goto done;
+	}
+
+done:
+	bpf_spin_unlock(&glock);
+	return err;
+}
+
+#define TEST_FB(op, dolock)					\
+SEC("syscall")							\
+__failure __msg(MSG)						\
+long test_##op##_spinlock_##dolock(void *ctx)			\
+{								\
+	struct bpf_list_node *l_n;				\
+	__u64 jiffies = 0;					\
+								\
+	if (dolock)						\
+		bpf_spin_lock(&glock);				\
+	l_n = bpf_list_##op(&ghead);				\
+	if (l_n)						\
+		jiffies = bpf_jiffies64();			\
+	if (dolock)						\
+		bpf_spin_unlock(&glock);			\
+								\
+	return !!jiffies;					\
+}
+
+#define MSG "call bpf_list_{{(front|back).+}}; R0{{(_w)?}}=ptr_or_null_node_data(id={{[0-9]+}},non_own_ref"
+TEST_FB(front, true)
+TEST_FB(back, true)
+#undef MSG
+
+#define MSG "bpf_spin_lock at off=0 must be held for bpf_list_head"
+TEST_FB(front, false)
+TEST_FB(back, false)
+#undef MSG
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_maps1.c b/tools/testing/selftests/bpf/progs/linked_maps1.c
new file mode 100644
index 000000000000..00bf1ca95986
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_maps1.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct my_key { long x; };
+struct my_value { long x; };
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, struct my_key);
+	__type(value, struct my_value);
+	__uint(max_entries, 16);
+} map1 SEC(".maps");
+
+ /* Matches map2 definition in linked_maps2.c. Order of the attributes doesn't
+  * matter.
+  */
+typedef struct {
+	__uint(max_entries, 8);
+	__type(key, int);
+	__type(value, int);
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+} map2_t;
+
+extern map2_t map2 SEC(".maps");
+
+/* This should be the winning map definition, but we have no way of verifying,
+ * so we just make sure that it links and works without errors
+ */
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 16);
+} map_weak __weak SEC(".maps");
+
+int output_first1;
+int output_second1;
+int output_weak1;
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handler_enter1)
+{
+	/* update values with key = 1 */
+	int key = 1, val = 1;
+	struct my_key key_struct = { .x = 1 };
+	struct my_value val_struct = { .x = 1000 };
+
+	bpf_map_update_elem(&map1, &key_struct, &val_struct, 0);
+	bpf_map_update_elem(&map2, &key, &val, 0);
+	bpf_map_update_elem(&map_weak, &key, &val, 0);
+
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int BPF_PROG(handler_exit1)
+{
+	/* lookup values with key = 2, set in another file */
+	int key = 2, *val;
+	struct my_key key_struct = { .x = 2 };
+	struct my_value *value_struct;
+
+	value_struct = bpf_map_lookup_elem(&map1, &key_struct);
+	if (value_struct)
+		output_first1 = value_struct->x;
+
+	val = bpf_map_lookup_elem(&map2, &key);
+	if (val)
+		output_second1 = *val;
+
+	val = bpf_map_lookup_elem(&map_weak, &key);
+	if (val)
+		output_weak1 = *val;
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_maps2.c b/tools/testing/selftests/bpf/progs/linked_maps2.c
new file mode 100644
index 000000000000..0693687474ed
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_maps2.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+/* modifiers and typedefs are ignored when comparing key/value types */
+typedef struct my_key { long x; } key_type;
+typedef struct my_value { long x; } value_type;
+
+extern struct {
+	__uint(max_entries, 16);
+	__type(key, key_type);
+	__type(value, value_type);
+	__uint(type, BPF_MAP_TYPE_HASH);
+} map1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 8);
+} map2 SEC(".maps");
+
+/* this definition will lose, but it has to exactly match the winner */
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 16);
+} map_weak __weak SEC(".maps");
+
+int output_first2;
+int output_second2;
+int output_weak2;
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handler_enter2)
+{
+	/* update values with key = 2 */
+	int key = 2, val = 2;
+	key_type key_struct = { .x = 2 };
+	value_type val_struct = { .x = 2000 };
+
+	bpf_map_update_elem(&map1, &key_struct, &val_struct, 0);
+	bpf_map_update_elem(&map2, &key, &val, 0);
+	bpf_map_update_elem(&map_weak, &key, &val, 0);
+
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int BPF_PROG(handler_exit2)
+{
+	/* lookup values with key = 1, set in another file */
+	int key = 1, *val;
+	key_type key_struct = { .x = 1 };
+	value_type *value_struct;
+
+	value_struct = bpf_map_lookup_elem(&map1, &key_struct);
+	if (value_struct)
+		output_first2 = value_struct->x;
+
+	val = bpf_map_lookup_elem(&map2, &key);
+	if (val)
+		output_second2 = *val;
+
+	val = bpf_map_lookup_elem(&map_weak, &key);
+	if (val)
+		output_weak2 = *val;
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_vars1.c b/tools/testing/selftests/bpf/progs/linked_vars1.c
new file mode 100644
index 000000000000..ef9e9d0bb0ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_vars1.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+extern int LINUX_KERNEL_VERSION __kconfig;
+/* this weak extern will be strict due to the other file's strong extern */
+extern bool CONFIG_BPF_SYSCALL __kconfig __weak;
+extern const void bpf_link_fops __ksym __weak;
+
+int input_bss1;
+int input_data1 = 1;
+const volatile int input_rodata1 = 11;
+
+int input_bss_weak __weak;
+/* these two definitions should win */
+int input_data_weak __weak = 10;
+const volatile int input_rodata_weak __weak = 100;
+
+extern int input_bss2;
+extern int input_data2;
+extern const int input_rodata2;
+
+int output_bss1;
+int output_data1;
+int output_rodata1;
+
+long output_sink1;
+
+static __noinline int get_bss_res(void)
+{
+	/* just make sure all the relocations work against .text as well */
+	return input_bss1 + input_bss2 + input_bss_weak;
+}
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handler1)
+{
+	output_bss1 = get_bss_res();
+	output_data1 = input_data1 + input_data2 + input_data_weak;
+	output_rodata1 = input_rodata1 + input_rodata2 + input_rodata_weak;
+
+	/* make sure we actually use above special externs, otherwise compiler
+	 * will optimize them out
+	 */
+	output_sink1 = LINUX_KERNEL_VERSION
+		       + CONFIG_BPF_SYSCALL
+		       + (long)&bpf_link_fops;
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/linked_vars2.c b/tools/testing/selftests/bpf/progs/linked_vars2.c
new file mode 100644
index 000000000000..e4f5bd388a3c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/linked_vars2.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+extern int LINUX_KERNEL_VERSION __kconfig;
+/* when an extern is defined as both strong and weak, resulting symbol will be strong */
+extern bool CONFIG_BPF_SYSCALL __kconfig;
+extern const void __start_BTF __ksym;
+
+int input_bss2;
+int input_data2 = 2;
+const volatile int input_rodata2 = 22;
+
+int input_bss_weak __weak;
+/* these two weak variables should lose */
+int input_data_weak __weak = 20;
+const volatile int input_rodata_weak __weak = 200;
+
+extern int input_bss1;
+extern int input_data1;
+extern const int input_rodata1;
+
+int output_bss2;
+int output_data2;
+int output_rodata2;
+
+int output_sink2;
+
+static __noinline int get_data_res(void)
+{
+	/* just make sure all the relocations work against .text as well */
+	return input_data1 + input_data2 + input_data_weak;
+}
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handler2)
+{
+	output_bss2 = input_bss1 + input_bss2 + input_bss_weak;
+	output_data2 = get_data_res();
+	output_rodata2 = input_rodata1 + input_rodata2 + input_rodata_weak;
+
+	/* make sure we actually use above special externs, otherwise compiler
+	 * will optimize them out
+	 */
+	output_sink2 = LINUX_KERNEL_VERSION
+		       + CONFIG_BPF_SYSCALL
+		       + (long)&__start_BTF;
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/livepatch_trampoline.c b/tools/testing/selftests/bpf/progs/livepatch_trampoline.c
new file mode 100644
index 000000000000..15579d5bcd91
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/livepatch_trampoline.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int fentry_hit;
+int fexit_hit;
+int my_pid;
+
+SEC("fentry/cmdline_proc_show")
+int BPF_PROG(fentry_cmdline)
+{
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	fentry_hit = 1;
+	return 0;
+}
+
+SEC("fexit/cmdline_proc_show")
+int BPF_PROG(fexit_cmdline)
+{
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	fexit_hit = 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/load_bytes_relative.c b/tools/testing/selftests/bpf/progs/load_bytes_relative.c
new file mode 100644
index 000000000000..dc1d04a7a3d6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/load_bytes_relative.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <errno.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} test_result SEC(".maps");
+
+SEC("cgroup_skb/egress")
+int load_bytes_relative(struct __sk_buff *skb)
+{
+	struct ethhdr eth;
+	struct iphdr iph;
+
+	__u32 map_key = 0;
+	__u32 test_passed = 0;
+
+	/* MAC header is not set by the time cgroup_skb/egress triggers */
+	if (bpf_skb_load_bytes_relative(skb, 0, &eth, sizeof(eth),
+					BPF_HDR_START_MAC) != -EFAULT)
+		goto fail;
+
+	if (bpf_skb_load_bytes_relative(skb, 0, &iph, sizeof(iph),
+					BPF_HDR_START_NET))
+		goto fail;
+
+	if (bpf_skb_load_bytes_relative(skb, 0xffff, &iph, sizeof(iph),
+					BPF_HDR_START_NET) != -EFAULT)
+		goto fail;
+
+	test_passed = 1;
+
+fail:
+	bpf_map_update_elem(&test_result, &map_key, &test_passed, BPF_ANY);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/local_kptr_stash.c b/tools/testing/selftests/bpf/progs/local_kptr_stash.c
new file mode 100644
index 000000000000..d736506a4c80
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_kptr_stash.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "../bpf_experimental.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+struct plain_local;
+
+struct node_data {
+	long key;
+	long data;
+	struct plain_local __kptr * stashed_in_local_kptr;
+	struct bpf_rb_node node;
+};
+
+struct refcounted_node {
+	long data;
+	struct bpf_rb_node rb_node;
+	struct bpf_refcount refcount;
+};
+
+struct stash {
+	struct bpf_spin_lock l;
+	struct refcounted_node __kptr *stashed;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct stash);
+	__uint(max_entries, 10);
+} refcounted_node_stash SEC(".maps");
+
+struct plain_local {
+	long key;
+	long data;
+};
+
+struct local_with_root {
+	long key;
+	struct bpf_spin_lock l;
+	struct bpf_rb_root r __contains(node_data, node);
+};
+
+struct map_value {
+	struct prog_test_ref_kfunc *not_kptr;
+	struct prog_test_ref_kfunc __kptr *val;
+	struct node_data __kptr *node;
+	struct plain_local __kptr *plain;
+	struct local_with_root __kptr *local_root;
+};
+
+/* This is necessary so that LLVM generates BTF for node_data struct
+ * If it's not included, a fwd reference for node_data will be generated but
+ * no struct. Example BTF of "node" field in map_value when not included:
+ *
+ * [10] PTR '(anon)' type_id=35
+ * [34] FWD 'node_data' fwd_kind=struct
+ * [35] TYPE_TAG 'kptr_ref' type_id=34
+ *
+ * (with no node_data struct defined)
+ * Had to do the same w/ bpf_kfunc_call_test_release below
+ */
+struct node_data *just_here_because_btf_bug;
+struct refcounted_node *just_here_because_btf_bug2;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 2);
+} some_nodes SEC(".maps");
+
+static bool less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+
+	return node_a->key < node_b->key;
+}
+
+static int create_and_stash(int idx, int val)
+{
+	struct plain_local *inner_local_kptr;
+	struct map_value *mapval;
+	struct node_data *res;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	inner_local_kptr = bpf_obj_new(typeof(*inner_local_kptr));
+	if (!inner_local_kptr)
+		return 2;
+
+	res = bpf_obj_new(typeof(*res));
+	if (!res) {
+		bpf_obj_drop(inner_local_kptr);
+		return 3;
+	}
+	res->key = val;
+
+	inner_local_kptr = bpf_kptr_xchg(&res->stashed_in_local_kptr, inner_local_kptr);
+	if (inner_local_kptr) {
+		/* Should never happen, we just obj_new'd res */
+		bpf_obj_drop(inner_local_kptr);
+		bpf_obj_drop(res);
+		return 4;
+	}
+
+	res = bpf_kptr_xchg(&mapval->node, res);
+	if (res)
+		bpf_obj_drop(res);
+	return 0;
+}
+
+SEC("tc")
+long stash_rb_nodes(void *ctx)
+{
+	return create_and_stash(0, 41) ?: create_and_stash(1, 42);
+}
+
+SEC("tc")
+long stash_plain(void *ctx)
+{
+	struct map_value *mapval;
+	struct plain_local *res;
+	int idx = 0;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	res = bpf_obj_new(typeof(*res));
+	if (!res)
+		return 1;
+	res->key = 41;
+
+	res = bpf_kptr_xchg(&mapval->plain, res);
+	if (res)
+		bpf_obj_drop(res);
+	return 0;
+}
+
+SEC("tc")
+long stash_local_with_root(void *ctx)
+{
+	struct local_with_root *res;
+	struct map_value *mapval;
+	struct node_data *n;
+	int idx = 0;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	res = bpf_obj_new(typeof(*res));
+	if (!res)
+		return 2;
+	res->key = 41;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n) {
+		bpf_obj_drop(res);
+		return 3;
+	}
+
+	bpf_spin_lock(&res->l);
+	bpf_rbtree_add(&res->r, &n->node, less);
+	bpf_spin_unlock(&res->l);
+
+	res = bpf_kptr_xchg(&mapval->local_root, res);
+	if (res) {
+		bpf_obj_drop(res);
+		return 4;
+	}
+	return 0;
+}
+
+SEC("tc")
+long unstash_rb_node(void *ctx)
+{
+	struct plain_local *inner_local_kptr = NULL;
+	struct map_value *mapval;
+	struct node_data *res;
+	long retval;
+	int key = 1;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &key);
+	if (!mapval)
+		return 1;
+
+	res = bpf_kptr_xchg(&mapval->node, NULL);
+	if (res) {
+		inner_local_kptr = bpf_kptr_xchg(&res->stashed_in_local_kptr, inner_local_kptr);
+		if (!inner_local_kptr) {
+			bpf_obj_drop(res);
+			return 1;
+		}
+		bpf_obj_drop(inner_local_kptr);
+
+		retval = res->key;
+		bpf_obj_drop(res);
+		return retval;
+	}
+	return 1;
+}
+
+SEC("tc")
+long stash_test_ref_kfunc(void *ctx)
+{
+	struct prog_test_ref_kfunc *res;
+	struct map_value *mapval;
+	int key = 0;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &key);
+	if (!mapval)
+		return 1;
+
+	res = bpf_kptr_xchg(&mapval->val, NULL);
+	if (res)
+		bpf_kfunc_call_test_release(res);
+	return 0;
+}
+
+SEC("tc")
+long refcount_acquire_without_unstash(void *ctx)
+{
+	struct refcounted_node *p;
+	struct stash *s;
+	int ret = 0;
+
+	s = bpf_map_lookup_elem(&refcounted_node_stash, &ret);
+	if (!s)
+		return 1;
+
+	if (!s->stashed)
+		/* refcount_acquire failure is expected when no refcounted_node
+		 * has been stashed before this program executes
+		 */
+		return 2;
+
+	p = bpf_refcount_acquire(s->stashed);
+	if (!p)
+		return 3;
+
+	ret = s->stashed ? s->stashed->data : -1;
+	bpf_obj_drop(p);
+	return ret;
+}
+
+/* Helper for refcount_acquire_without_unstash test */
+SEC("tc")
+long stash_refcounted_node(void *ctx)
+{
+	struct refcounted_node *p;
+	struct stash *s;
+	int key = 0;
+
+	s = bpf_map_lookup_elem(&refcounted_node_stash, &key);
+	if (!s)
+		return 1;
+
+	p = bpf_obj_new(typeof(*p));
+	if (!p)
+		return 2;
+	p->data = 42;
+
+	p = bpf_kptr_xchg(&s->stashed, p);
+	if (p) {
+		bpf_obj_drop(p);
+		return 3;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c b/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c
new file mode 100644
index 000000000000..fcf7a7567da2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "../bpf_experimental.h"
+#include "bpf_misc.h"
+
+struct node_data {
+	long key;
+	long data;
+	struct bpf_rb_node node;
+};
+
+struct map_value {
+	struct node_data __kptr *node;
+};
+
+struct node_data2 {
+	long key[4];
+};
+
+/* This is necessary so that LLVM generates BTF for node_data struct
+ * If it's not included, a fwd reference for node_data will be generated but
+ * no struct. Example BTF of "node" field in map_value when not included:
+ *
+ * [10] PTR '(anon)' type_id=35
+ * [34] FWD 'node_data' fwd_kind=struct
+ * [35] TYPE_TAG 'kptr_ref' type_id=34
+ */
+struct node_data *just_here_because_btf_bug;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 2);
+} some_nodes SEC(".maps");
+
+SEC("tc")
+__failure __msg("invalid kptr access, R2 type=ptr_node_data2 expected=ptr_node_data")
+long stash_rb_nodes(void *ctx)
+{
+	struct map_value *mapval;
+	struct node_data2 *res;
+	int idx = 0;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	res = bpf_obj_new(typeof(*res));
+	if (!res)
+		return 1;
+	res->key[0] = 40;
+
+	res = bpf_kptr_xchg(&mapval->node, res);
+	if (res)
+		bpf_obj_drop(res);
+	return 0;
+}
+
+SEC("tc")
+__failure __msg("R1 must have zero offset when passed to release func")
+long drop_rb_node_off(void *ctx)
+{
+	struct map_value *mapval;
+	struct node_data *res;
+	int idx = 0;
+
+	mapval = bpf_map_lookup_elem(&some_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	res = bpf_obj_new(typeof(*res));
+	if (!res)
+		return 1;
+	/* Try releasing with graph node offset */
+	bpf_obj_drop(&res->node);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/local_storage.c b/tools/testing/selftests/bpf/progs/local_storage.c
new file mode 100644
index 000000000000..637e75df2e14
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_storage.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define DUMMY_STORAGE_VALUE 0xdeadbeef
+
+__u32 monitored_pid = 0;
+int inode_storage_result = -1;
+int sk_storage_result = -1;
+int task_storage_result = -1;
+
+struct local_storage {
+	struct inode *exec_inode;
+	__u32 value;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_INODE_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct local_storage);
+} inode_storage_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC | BPF_F_CLONE);
+	__type(key, int);
+	__type(value, struct local_storage);
+} sk_storage_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC | BPF_F_CLONE);
+	__type(key, int);
+	__type(value, struct local_storage);
+} sk_storage_map2 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct local_storage);
+} task_storage_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct local_storage);
+} task_storage_map2 SEC(".maps");
+
+SEC("lsm/inode_unlink")
+int BPF_PROG(unlink_hook, struct inode *dir, struct dentry *victim)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	struct bpf_local_storage *local_storage;
+	struct local_storage *storage;
+	struct task_struct *task;
+	bool is_self_unlink;
+
+	if (pid != monitored_pid)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+	if (!task)
+		return 0;
+
+	task_storage_result = -1;
+
+	storage = bpf_task_storage_get(&task_storage_map, task, 0, 0);
+	if (!storage)
+		return 0;
+
+	/* Don't let an executable delete itself */
+	is_self_unlink = storage->exec_inode == victim->d_inode;
+
+	storage = bpf_task_storage_get(&task_storage_map2, task, 0,
+				       BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!storage || storage->value)
+		return 0;
+
+	if (bpf_task_storage_delete(&task_storage_map, task))
+		return 0;
+
+	/* Ensure that the task_storage_map is disconnected from the storage.
+	 * The storage memory should not be freed back to the
+	 * bpf_mem_alloc.
+	 */
+	local_storage = task->bpf_storage;
+	if (!local_storage || local_storage->smap)
+		return 0;
+
+	task_storage_result = 0;
+
+	return is_self_unlink ? -EPERM : 0;
+}
+
+SEC("lsm.s/inode_rename")
+int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry,
+	     struct inode *new_dir, struct dentry *new_dentry,
+	     unsigned int flags)
+{
+	struct local_storage *storage;
+	int err;
+
+	/* new_dentry->d_inode can be NULL when the inode is renamed to a file
+	 * that did not exist before. The helper should be able to handle this
+	 * NULL pointer.
+	 */
+	bpf_inode_storage_get(&inode_storage_map, new_dentry->d_inode, 0,
+			      BPF_LOCAL_STORAGE_GET_F_CREATE);
+
+	storage = bpf_inode_storage_get(&inode_storage_map, old_dentry->d_inode,
+					0, 0);
+	if (!storage)
+		return 0;
+
+	if (storage->value != DUMMY_STORAGE_VALUE)
+		inode_storage_result = -1;
+
+	err = bpf_inode_storage_delete(&inode_storage_map, old_dentry->d_inode);
+	if (!err)
+		inode_storage_result = err;
+
+	return 0;
+}
+
+SEC("lsm.s/socket_bind")
+int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address,
+	     int addrlen)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	struct local_storage *storage;
+	struct sock *sk = sock->sk;
+
+	if (pid != monitored_pid || !sk)
+		return 0;
+
+	storage = bpf_sk_storage_get(&sk_storage_map, sk, 0, 0);
+	if (!storage)
+		return 0;
+
+	sk_storage_result = -1;
+	if (storage->value != DUMMY_STORAGE_VALUE)
+		return 0;
+
+	/* This tests that we can associate multiple elements
+	 * with the local storage.
+	 */
+	storage = bpf_sk_storage_get(&sk_storage_map2, sk, 0,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 0;
+
+	if (bpf_sk_storage_delete(&sk_storage_map2, sk))
+		return 0;
+
+	storage = bpf_sk_storage_get(&sk_storage_map2, sk, 0,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 0;
+
+	if (bpf_sk_storage_delete(&sk_storage_map, sk))
+		return 0;
+
+	/* Ensure that the sk_storage_map is disconnected from the storage. */
+	if (!sk->sk_bpf_storage || sk->sk_bpf_storage->smap)
+		return 0;
+
+	sk_storage_result = 0;
+	return 0;
+}
+
+SEC("lsm.s/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family, int type,
+	     int protocol, int kern)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	struct local_storage *storage;
+	struct sock *sk = sock->sk;
+
+	if (pid != monitored_pid || !sk)
+		return 0;
+
+	storage = bpf_sk_storage_get(&sk_storage_map, sk, 0,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 0;
+
+	storage->value = DUMMY_STORAGE_VALUE;
+
+	return 0;
+}
+
+/* This uses the local storage to remember the inode of the binary that a
+ * process was originally executing.
+ */
+SEC("lsm.s/bprm_committed_creds")
+void BPF_PROG(exec, struct linux_binprm *bprm)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	struct local_storage *storage;
+
+	if (pid != monitored_pid)
+		return;
+
+	storage = bpf_task_storage_get(&task_storage_map,
+				       bpf_get_current_task_btf(), 0,
+				       BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (storage)
+		storage->exec_inode = bprm->file->f_inode;
+
+	storage = bpf_inode_storage_get(&inode_storage_map, bprm->file->f_inode,
+					0, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return;
+
+	storage->value = DUMMY_STORAGE_VALUE;
+}
diff --git a/tools/testing/selftests/bpf/progs/local_storage_bench.c b/tools/testing/selftests/bpf/progs/local_storage_bench.c
new file mode 100644
index 000000000000..2c3234c5b73a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_storage_bench.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define HASHMAP_SZ 4194304
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+		__uint(map_flags, BPF_F_NO_PREALLOC);
+		__type(key, int);
+		__type(value, int);
+	});
+} array_of_local_storage_maps SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_HASH);
+		__uint(max_entries, HASHMAP_SZ);
+		__type(key, int);
+		__type(value, int);
+	});
+} array_of_hash_maps SEC(".maps");
+
+long important_hits;
+long hits;
+
+/* set from user-space */
+const volatile unsigned int use_hashmap;
+const volatile unsigned int hashmap_num_keys;
+const volatile unsigned int num_maps;
+const volatile unsigned int interleave;
+
+struct loop_ctx {
+	struct task_struct *task;
+	long loop_hits;
+	long loop_important_hits;
+};
+
+static int do_lookup(unsigned int elem, struct loop_ctx *lctx)
+{
+	void *map, *inner_map;
+	int idx = 0;
+
+	if (use_hashmap)
+		map = &array_of_hash_maps;
+	else
+		map = &array_of_local_storage_maps;
+
+	inner_map = bpf_map_lookup_elem(map, &elem);
+	if (!inner_map)
+		return -1;
+
+	if (use_hashmap) {
+		idx = bpf_get_prandom_u32() % hashmap_num_keys;
+		bpf_map_lookup_elem(inner_map, &idx);
+	} else {
+		bpf_task_storage_get(inner_map, lctx->task, &idx,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	}
+
+	lctx->loop_hits++;
+	if (!elem)
+		lctx->loop_important_hits++;
+	return 0;
+}
+
+static long loop(u32 index, void *ctx)
+{
+	struct loop_ctx *lctx = (struct loop_ctx *)ctx;
+	unsigned int map_idx = index % num_maps;
+
+	do_lookup(map_idx, lctx);
+	if (interleave && map_idx % 3 == 0)
+		do_lookup(0, lctx);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int get_local(void *ctx)
+{
+	struct loop_ctx lctx;
+
+	lctx.task = bpf_get_current_task_btf();
+	lctx.loop_hits = 0;
+	lctx.loop_important_hits = 0;
+	bpf_loop(10000, &loop, &lctx, 0);
+	__sync_add_and_fetch(&hits, lctx.loop_hits);
+	__sync_add_and_fetch(&important_hits, lctx.loop_important_hits);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c b/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c
new file mode 100644
index 000000000000..03bf69f49075
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} task_storage SEC(".maps");
+
+long hits;
+long gp_hits;
+long gp_times;
+long current_gp_start;
+long unexpected;
+bool postgp_seen;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int get_local(void *ctx)
+{
+	struct task_struct *task;
+	int idx;
+	int *s;
+
+	idx = 0;
+	task = bpf_get_current_task_btf();
+	s = bpf_task_storage_get(&task_storage, task, &idx,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!s)
+		return 0;
+
+	*s = 3;
+	bpf_task_storage_delete(&task_storage, task);
+	__sync_add_and_fetch(&hits, 1);
+	return 0;
+}
+
+SEC("fentry/rcu_tasks_trace_pregp_step")
+int pregp_step(struct pt_regs *ctx)
+{
+	current_gp_start = bpf_ktime_get_ns();
+	return 0;
+}
+
+SEC("fentry/rcu_tasks_trace_postgp")
+int postgp(struct pt_regs *ctx)
+{
+	if (!current_gp_start && postgp_seen) {
+		/* Will only happen if prog tracing rcu_tasks_trace_pregp_step doesn't
+		 * execute before this prog
+		 */
+		__sync_add_and_fetch(&unexpected, 1);
+		return 0;
+	}
+
+	__sync_add_and_fetch(&gp_times, bpf_ktime_get_ns() - current_gp_start);
+	__sync_add_and_fetch(&gp_hits, 1);
+	current_gp_start = 0;
+	postgp_seen = true;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/loop1.c b/tools/testing/selftests/bpf/progs/loop1.c
new file mode 100644
index 000000000000..b0fa26fb4760
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop1.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("raw_tracepoint/kfree_skb")
+int nested_loops(volatile struct pt_regs* ctx)
+{
+	int i, j, sum = 0, m;
+
+	for (j = 0; j < 300; j++)
+		for (i = 0; i < j; i++) {
+			if (j & 1)
+				m = PT_REGS_RC(ctx);
+			else
+				m = j;
+			sum += i * m;
+		}
+
+	return sum;
+}
diff --git a/tools/testing/selftests/bpf/progs/loop2.c b/tools/testing/selftests/bpf/progs/loop2.c
new file mode 100644
index 000000000000..0227409d4b0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop2.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("raw_tracepoint/consume_skb")
+int while_true(volatile struct pt_regs* ctx)
+{
+	int i = 0;
+
+	while (true) {
+		if (PT_REGS_RC(ctx) & 1)
+			i += 3;
+		else
+			i += 7;
+		if (i > 40)
+			break;
+	}
+
+	return i;
+}
diff --git a/tools/testing/selftests/bpf/progs/loop3.c b/tools/testing/selftests/bpf/progs/loop3.c
new file mode 100644
index 000000000000..5d1c9a775e6b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop3.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("raw_tracepoint/consume_skb")
+int while_true(struct pt_regs *ctx)
+{
+	volatile __u64 i = 0, sum = 0;
+	do {
+		i++;
+		sum += PT_REGS_RC(ctx);
+	} while (i < 0x100000000ULL);
+	return sum;
+}
diff --git a/tools/testing/selftests/bpf/progs/loop4.c b/tools/testing/selftests/bpf/progs/loop4.c
new file mode 100644
index 000000000000..0de0357f57cc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop4.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("socket")
+int combinations(volatile struct __sk_buff* skb)
+{
+	int ret = 0, i;
+
+	__pragma_loop_no_unroll
+	for (i = 0; i < 20; i++)
+		if (skb->len)
+			ret |= 1 << i;
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/loop5.c b/tools/testing/selftests/bpf/progs/loop5.c
new file mode 100644
index 000000000000..1b13f37f85ec
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop5.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("socket")
+int while_true(volatile struct __sk_buff* skb)
+{
+	int i = 0;
+
+	while (1) {
+		if (skb->len)
+			i += 3;
+		else
+			i += 7;
+		if (i == 9)
+			break;
+		barrier();
+		if (i == 10)
+			break;
+		barrier();
+		if (i == 13)
+			break;
+		barrier();
+		if (i == 14)
+			break;
+	}
+	return i;
+}
diff --git a/tools/testing/selftests/bpf/progs/loop6.c b/tools/testing/selftests/bpf/progs/loop6.c
new file mode 100644
index 000000000000..dd36aff4fba3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/loop6.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* typically virtio scsi has max SGs of 6 */
+#define VIRTIO_MAX_SGS	6
+
+/* Verifier will fail with SG_MAX = 128. The failure can be
+ * workarounded with a smaller SG_MAX, e.g. 10.
+ */
+#define WORKAROUND
+#ifdef WORKAROUND
+#define SG_MAX		10
+#else
+/* typically virtio blk has max SEG of 128 */
+#define SG_MAX		128
+#endif
+
+#define SG_CHAIN	0x01UL
+#define SG_END		0x02UL
+
+#define sg_is_chain(sg)		((sg)->page_link & SG_CHAIN)
+#define sg_is_last(sg)		((sg)->page_link & SG_END)
+#define sg_chain_ptr(sg)	\
+	((struct scatterlist *) ((sg)->page_link & ~(SG_CHAIN | SG_END)))
+
+static inline struct scatterlist *__sg_next(struct scatterlist *sgp)
+{
+	struct scatterlist sg;
+
+	bpf_probe_read_kernel(&sg, sizeof(sg), sgp);
+	if (sg_is_last(&sg))
+		return NULL;
+
+	sgp++;
+
+	bpf_probe_read_kernel(&sg, sizeof(sg), sgp);
+	if (sg_is_chain(&sg))
+		sgp = sg_chain_ptr(&sg);
+
+	return sgp;
+}
+
+static inline struct scatterlist *get_sgp(struct scatterlist **sgs, int i)
+{
+	struct scatterlist *sgp;
+
+	bpf_probe_read_kernel(&sgp, sizeof(sgp), sgs + i);
+	return sgp;
+}
+
+int run_once = 0;
+int result = 0;
+
+SEC("kprobe/virtqueue_add_sgs")
+int BPF_KPROBE(trace_virtqueue_add_sgs, void *unused, struct scatterlist **sgs,
+	       unsigned int out_sgs, unsigned int in_sgs)
+{
+	struct scatterlist *sgp = NULL;
+	__u64 length1 = 0, length2 = 0;
+	unsigned int i, n, len;
+
+	if (run_once != 0)
+		return 0;
+
+	for (i = 0; (i < VIRTIO_MAX_SGS) && (i < out_sgs); i++) {
+		__sink(out_sgs);
+		for (n = 0, sgp = get_sgp(sgs, i); sgp && (n < SG_MAX);
+		     sgp = __sg_next(sgp)) {
+			len = BPF_CORE_READ(sgp, length);
+			length1 += len;
+			n++;
+		}
+	}
+
+	for (i = 0; (i < VIRTIO_MAX_SGS) && (i < in_sgs); i++) {
+		__sink(in_sgs);
+		for (n = 0, sgp = get_sgp(sgs, i); sgp && (n < SG_MAX);
+		     sgp = __sg_next(sgp)) {
+			len = BPF_CORE_READ(sgp, length);
+			length2 += len;
+			n++;
+		}
+	}
+
+	run_once = 1;
+	result = length2 - length1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/lpm_trie.h b/tools/testing/selftests/bpf/progs/lpm_trie.h
new file mode 100644
index 000000000000..76aa5821807f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lpm_trie.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef __PROGS_LPM_TRIE_H
+#define __PROGS_LPM_TRIE_H
+
+struct trie_key {
+	__u32 prefixlen;
+	__u32 data;
+};
+
+/* Benchmark operations */
+enum {
+	LPM_OP_NOOP = 0,
+	LPM_OP_BASELINE,
+	LPM_OP_LOOKUP,
+	LPM_OP_INSERT,
+	LPM_OP_UPDATE,
+	LPM_OP_DELETE,
+	LPM_OP_FREE
+};
+
+/*
+ * Return values from run_bench.
+ *
+ * Negative values are also allowed and represent kernel error codes.
+ */
+#define LPM_BENCH_SUCCESS	0
+#define LPM_BENCH_REINIT_MAP 	1	/* Reset trie to initial state for current op */
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/lpm_trie_bench.c b/tools/testing/selftests/bpf/progs/lpm_trie_bench.c
new file mode 100644
index 000000000000..a0e6ebd5507a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lpm_trie_bench.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Cloudflare */
+
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "bpf_atomic.h"
+#include "progs/lpm_trie.h"
+
+#define BPF_OBJ_NAME_LEN 16U
+#define MAX_ENTRIES 100000000
+#define NR_LOOPS 10000
+
+char _license[] SEC("license") = "GPL";
+
+/* Filled by userspace. See fill_map() in bench_lpm_trie_map.c */
+struct {
+	__uint(type, BPF_MAP_TYPE_LPM_TRIE);
+	__type(key, struct trie_key);
+	__type(value, __u32);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, MAX_ENTRIES);
+} trie_map SEC(".maps");
+
+long hits;
+long duration_ns;
+
+/* Configured from userspace */
+__u32 nr_entries;
+__u32 prefixlen;
+bool random;
+__u8 op;
+
+static __u64 latency_free_start;
+
+SEC("fentry/bpf_map_free_deferred")
+int BPF_PROG(trie_free_entry, struct work_struct *work)
+{
+	struct bpf_map *map = container_of(work, struct bpf_map, work);
+	char name[BPF_OBJ_NAME_LEN];
+	u32 map_type;
+
+	map_type = BPF_CORE_READ(map, map_type);
+	if (map_type != BPF_MAP_TYPE_LPM_TRIE)
+		return 0;
+
+	/*
+	 * Ideally we'd have access to the map ID but that's already
+	 * freed before we enter trie_free().
+	 */
+	BPF_CORE_READ_STR_INTO(&name, map, name);
+	if (bpf_strncmp(name, BPF_OBJ_NAME_LEN, "trie_free_map"))
+		return 0;
+
+	latency_free_start = bpf_ktime_get_ns();
+
+	return 0;
+}
+
+SEC("fexit/bpf_map_free_deferred")
+int BPF_PROG(trie_free_exit, struct work_struct *work)
+{
+	__u64 val;
+
+	if (!latency_free_start)
+		return 0;
+
+	val = bpf_ktime_get_ns() - latency_free_start;
+	latency_free_start = 0;
+
+	__sync_add_and_fetch(&duration_ns, val);
+	__sync_add_and_fetch(&hits, 1);
+
+	return 0;
+}
+
+static __u32 cur_key;
+
+static __always_inline void generate_key(struct trie_key *key)
+{
+	key->prefixlen = prefixlen;
+
+	if (random)
+		key->data = bpf_get_prandom_u32() % nr_entries;
+	else
+		key->data = cur_key++ % nr_entries;
+}
+
+static int noop(__u32 index, __u32 *unused)
+{
+	return 0;
+}
+
+static int baseline(__u32 index, __u32 *unused)
+{
+	struct trie_key key;
+	__u32 blackbox = 0;
+
+	generate_key(&key);
+	/* Avoid compiler optimizing out the modulo */
+	barrier_var(blackbox);
+	blackbox = READ_ONCE(key.data);
+
+	return 0;
+}
+
+static int lookup(__u32 index, int *retval)
+{
+	struct trie_key key;
+
+	generate_key(&key);
+	if (!bpf_map_lookup_elem(&trie_map, &key)) {
+		*retval = -ENOENT;
+		return 1;
+	}
+
+	return 0;
+}
+
+static int insert(__u32 index, int *retval)
+{
+	struct trie_key key;
+	u32 val = 1;
+	int err;
+
+	generate_key(&key);
+	err = bpf_map_update_elem(&trie_map, &key, &val, BPF_NOEXIST);
+	if (err) {
+		*retval = err;
+		return 1;
+	}
+
+	/* Is this the last entry? */
+	if (key.data == nr_entries - 1) {
+		/* For atomicity concerns, see the comment in delete() */
+		*retval = LPM_BENCH_REINIT_MAP;
+		return 1;
+	}
+
+	return 0;
+}
+
+static int update(__u32 index, int *retval)
+{
+	struct trie_key key;
+	u32 val = 1;
+	int err;
+
+	generate_key(&key);
+	err = bpf_map_update_elem(&trie_map, &key, &val, BPF_EXIST);
+	if (err) {
+		*retval = err;
+		return 1;
+	}
+
+	return 0;
+}
+
+static int delete(__u32 index, int *retval)
+{
+	struct trie_key key;
+	int err;
+
+	generate_key(&key);
+	err = bpf_map_delete_elem(&trie_map, &key);
+	if (err) {
+		*retval = err;
+		return 1;
+	}
+
+	/* Do we need to refill the map? */
+	if (key.data == nr_entries - 1) {
+		/*
+		 * Atomicity isn't required because DELETE only supports
+		 * one producer running concurrently. What we need is a
+		 * way to track how many entries have been deleted from
+		 * the trie between consecutive invocations of the BPF
+		 * prog because a single bpf_loop() call might not
+		 * delete all entries, e.g. when NR_LOOPS < nr_entries.
+		 */
+		*retval = LPM_BENCH_REINIT_MAP;
+		return 1;
+	}
+
+	return 0;
+}
+
+SEC("xdp")
+int BPF_PROG(run_bench)
+{
+	int err = LPM_BENCH_SUCCESS;
+	u64 start, delta;
+	int loops;
+
+	start = bpf_ktime_get_ns();
+
+	switch (op) {
+	case LPM_OP_NOOP:
+		loops = bpf_loop(NR_LOOPS, noop, NULL, 0);
+		break;
+	case LPM_OP_BASELINE:
+		loops = bpf_loop(NR_LOOPS, baseline, NULL, 0);
+		break;
+	case LPM_OP_LOOKUP:
+		loops = bpf_loop(NR_LOOPS, lookup, &err, 0);
+		break;
+	case LPM_OP_INSERT:
+		loops = bpf_loop(NR_LOOPS, insert, &err, 0);
+		break;
+	case LPM_OP_UPDATE:
+		loops = bpf_loop(NR_LOOPS, update, &err, 0);
+		break;
+	case LPM_OP_DELETE:
+		loops = bpf_loop(NR_LOOPS, delete, &err, 0);
+		break;
+	default:
+		bpf_printk("invalid benchmark operation\n");
+		return -1;
+	}
+
+	delta = bpf_ktime_get_ns() - start;
+
+	__sync_add_and_fetch(&duration_ns, delta);
+	__sync_add_and_fetch(&hits, loops);
+
+	return err;
+}
diff --git a/tools/testing/selftests/bpf/progs/lpm_trie_map.c b/tools/testing/selftests/bpf/progs/lpm_trie_map.c
new file mode 100644
index 000000000000..6e60d686b664
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lpm_trie_map.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define MAX_ENTRIES 100000000
+
+struct trie_key {
+	__u32 prefixlen;
+	__u32 data;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LPM_TRIE);
+	__type(key, struct trie_key);
+	__type(value, __u32);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, MAX_ENTRIES);
+} trie_free_map SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/lru_bug.c b/tools/testing/selftests/bpf/progs/lru_bug.c
new file mode 100644
index 000000000000..ad73029cb1e3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lru_bug.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct map_value {
+	struct task_struct __kptr_untrusted *ptr;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct map_value);
+} lru_map SEC(".maps");
+
+int pid = 0;
+int result = 1;
+
+SEC("fentry/bpf_ktime_get_ns")
+int printk(void *ctx)
+{
+	struct map_value v = {};
+
+	if (pid == bpf_get_current_task_btf()->pid)
+		bpf_map_update_elem(&lru_map, &(int){0}, &v, 0);
+	return 0;
+}
+
+SEC("fentry/do_nanosleep")
+int nanosleep(void *ctx)
+{
+	struct map_value val = {}, *v;
+	struct task_struct *current;
+
+	bpf_map_update_elem(&lru_map, &(int){0}, &val, 0);
+	v = bpf_map_lookup_elem(&lru_map, &(int){0});
+	if (!v)
+		return 0;
+	bpf_map_delete_elem(&lru_map, &(int){0});
+	current = bpf_get_current_task_btf();
+	v->ptr = current;
+	pid = current->pid;
+	bpf_ktime_get_ns();
+	result = !v->ptr;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/lsm.c b/tools/testing/selftests/bpf/progs/lsm.c
new file mode 100644
index 000000000000..7de173daf27b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} lru_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} percpu_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} percpu_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} lru_percpu_hash SEC(".maps");
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, __u64);
+} inner_map SEC(".maps");
+
+struct outer_arr {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+	__array(values, struct inner_map);
+} outer_arr SEC(".maps") = {
+	.values = { [0] = &inner_map },
+};
+
+struct outer_hash {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(int));
+	__array(values, struct inner_map);
+} outer_hash SEC(".maps") = {
+	.values = { [0] = &inner_map },
+};
+
+char _license[] SEC("license") = "GPL";
+
+int monitored_pid = 0;
+int mprotect_count = 0;
+int bprm_count = 0;
+
+SEC("lsm/file_mprotect")
+int BPF_PROG(test_int_hook, struct vm_area_struct *vma,
+	     unsigned long reqprot, unsigned long prot, int ret)
+{
+	struct mm_struct *mm = vma->vm_mm;
+
+	if (ret != 0 || !mm)
+		return ret;
+
+	__s32 pid = bpf_get_current_pid_tgid() >> 32;
+	int is_stack = 0;
+
+	is_stack = (vma->vm_start <= mm->start_stack &&
+		    vma->vm_end >= mm->start_stack);
+
+	if (is_stack && monitored_pid == pid) {
+		mprotect_count++;
+		ret = -EPERM;
+	}
+
+	return ret;
+}
+
+SEC("lsm.s/bprm_committed_creds")
+int BPF_PROG(test_void_hook, struct linux_binprm *bprm)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	struct inner_map *inner_map;
+	char args[64];
+	__u32 key = 0;
+	__u64 *value;
+
+	if (monitored_pid == pid)
+		bprm_count++;
+
+	bpf_copy_from_user(args, sizeof(args), (void *)bprm->vma->vm_mm->arg_start);
+	bpf_copy_from_user(args, sizeof(args), (void *)bprm->mm->arg_start);
+
+	value = bpf_map_lookup_elem(&array, &key);
+	if (value)
+		*value = 0;
+	value = bpf_map_lookup_elem(&hash, &key);
+	if (value)
+		*value = 0;
+	value = bpf_map_lookup_elem(&lru_hash, &key);
+	if (value)
+		*value = 0;
+	value = bpf_map_lookup_elem(&percpu_array, &key);
+	if (value)
+		*value = 0;
+	value = bpf_map_lookup_elem(&percpu_hash, &key);
+	if (value)
+		*value = 0;
+	value = bpf_map_lookup_elem(&lru_percpu_hash, &key);
+	if (value)
+		*value = 0;
+	inner_map = bpf_map_lookup_elem(&outer_arr, &key);
+	if (inner_map) {
+		value = bpf_map_lookup_elem(inner_map, &key);
+		if (value)
+			*value = 0;
+	}
+	inner_map = bpf_map_lookup_elem(&outer_hash, &key);
+	if (inner_map) {
+		value = bpf_map_lookup_elem(inner_map, &key);
+		if (value)
+			*value = 0;
+	}
+
+	return 0;
+}
+SEC("lsm/task_free") /* lsm/ is ok, lsm.s/ fails */
+int BPF_PROG(test_task_free, struct task_struct *task)
+{
+	return 0;
+}
+
+int copy_test = 0;
+
+SEC("fentry.s/" SYS_PREFIX "sys_setdomainname")
+int BPF_PROG(test_sys_setdomainname, struct pt_regs *regs)
+{
+	void *ptr = (void *)PT_REGS_PARM1_SYSCALL(regs);
+	int len = PT_REGS_PARM2_SYSCALL(regs);
+	int buf = 0;
+	long ret;
+
+	ret = bpf_copy_from_user(&buf, sizeof(buf), ptr);
+	if (len == -2 && ret == 0 && buf == 1234)
+		copy_test++;
+	if (len == -3 && ret == -EFAULT)
+		copy_test++;
+	if (len == -4 && ret == -EFAULT)
+		copy_test++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/lsm_cgroup.c b/tools/testing/selftests/bpf/progs/lsm_cgroup.c
new file mode 100644
index 000000000000..d7598538aa2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm_cgroup.c
@@ -0,0 +1,192 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+extern bool CONFIG_SECURITY_SELINUX __kconfig __weak;
+extern bool CONFIG_SECURITY_SMACK __kconfig __weak;
+extern bool CONFIG_SECURITY_APPARMOR __kconfig __weak;
+
+#ifndef AF_PACKET
+#define AF_PACKET 17
+#endif
+
+#ifndef AF_UNIX
+#define AF_UNIX 1
+#endif
+
+#ifndef EPERM
+#define EPERM 1
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, __u64);
+	__type(value, __u64);
+} cgroup_storage SEC(".maps");
+
+int called_socket_post_create;
+int called_socket_post_create2;
+int called_socket_bind;
+int called_socket_bind2;
+int called_socket_alloc;
+int called_socket_clone;
+
+static __always_inline int test_local_storage(void)
+{
+	__u64 *val;
+
+	val = bpf_get_local_storage(&cgroup_storage, 0);
+	if (!val)
+		return 0;
+	*val += 1;
+
+	return 1;
+}
+
+static __always_inline int real_create(struct socket *sock, int family,
+				       int protocol)
+{
+	struct sock *sk;
+	int prio = 123;
+
+	/* Reject non-tx-only AF_PACKET. */
+	if (family == AF_PACKET && protocol != 0)
+		return 0; /* EPERM */
+
+	sk = sock->sk;
+	if (!sk)
+		return 1;
+
+	/* The rest of the sockets get default policy. */
+	if (bpf_setsockopt(sk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0; /* EPERM */
+
+	/* Make sure bpf_getsockopt is allowed and works. */
+	prio = 0;
+	if (bpf_getsockopt(sk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0; /* EPERM */
+	if (prio != 123)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family,
+	     int type, int protocol, int kern)
+{
+	called_socket_post_create++;
+	return real_create(sock, family, protocol);
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_post_create")
+int BPF_PROG(socket_post_create2, struct socket *sock, int family,
+	     int type, int protocol, int kern)
+{
+	called_socket_post_create2++;
+	return real_create(sock, family, protocol);
+}
+
+static __always_inline int real_bind(struct socket *sock,
+				     struct sockaddr *address,
+				     int addrlen)
+{
+	struct sockaddr_ll sa = {};
+	struct sock *sk = sock->sk;
+
+	if (!sk)
+		return 1;
+
+	if (sk->__sk_common.skc_family != AF_PACKET)
+		return 1;
+
+	if (sk->sk_kern_sock)
+		return 1;
+
+	bpf_probe_read_kernel(&sa, sizeof(sa), address);
+	if (sa.sll_protocol)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_bind")
+int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address,
+	     int addrlen)
+{
+	called_socket_bind++;
+	return real_bind(sock, address, addrlen);
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_bind")
+int BPF_PROG(socket_bind2, struct socket *sock, struct sockaddr *address,
+	     int addrlen)
+{
+	called_socket_bind2++;
+	return real_bind(sock, address, addrlen);
+}
+
+/* __cgroup_bpf_run_lsm_current (via bpf_lsm_current_hooks) */
+SEC("lsm_cgroup/sk_alloc_security")
+int BPF_PROG(socket_alloc, struct sock *sk, int family, gfp_t priority)
+{
+	called_socket_alloc++;
+	/* if already have non-bpf lsms installed, EPERM will cause memory leak of non-bpf lsms */
+	if (CONFIG_SECURITY_SELINUX || CONFIG_SECURITY_SMACK || CONFIG_SECURITY_APPARMOR)
+		return 1;
+
+	if (family == AF_UNIX)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_sock */
+SEC("lsm_cgroup/inet_csk_clone")
+int BPF_PROG(socket_clone, struct sock *newsk, const struct request_sock *req)
+{
+	int prio = 234;
+
+	if (!newsk)
+		return 1;
+
+	/* Accepted request sockets get a different priority. */
+	if (bpf_setsockopt(newsk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 1;
+
+	/* Make sure bpf_getsockopt is allowed and works. */
+	prio = 0;
+	if (bpf_getsockopt(newsk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 1;
+	if (prio != 234)
+		return 1;
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 1;
+
+	called_socket_clone++;
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c b/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c
new file mode 100644
index 000000000000..6cb0f161f417
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("lsm_cgroup/inet_csk_clone")
+int BPF_PROG(nonvoid_socket_clone, struct sock *newsk, const struct request_sock *req)
+{
+	/* Can not return any errors from void LSM hooks. */
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/lsm_tailcall.c b/tools/testing/selftests/bpf/progs/lsm_tailcall.c
new file mode 100644
index 000000000000..6e7e58051e64
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm_tailcall.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Huawei Technologies Co., Ltd */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("lsm/file_permission")
+int lsm_file_permission_prog(void *ctx)
+{
+	return 0;
+}
+
+SEC("lsm/kernfs_init_security")
+int lsm_kernfs_init_security_prog(void *ctx)
+{
+	return 0;
+}
+
+SEC("lsm/kernfs_init_security")
+int lsm_kernfs_init_security_entry(void *ctx)
+{
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/map_excl.c b/tools/testing/selftests/bpf/progs/map_excl.c
new file mode 100644
index 000000000000..d461684728e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_excl.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Google LLC. */
+#include <linux/bpf.h>
+#include <time.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1);
+} excl_map SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int should_have_access(void *ctx)
+{
+	int key = 0, value = 0xdeadbeef;
+
+	bpf_map_update_elem(&excl_map, &key, &value, 0);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int should_not_have_access(void *ctx)
+{
+	int key = 0, value = 0xdeadbeef;
+
+	bpf_map_update_elem(&excl_map, &key, &value, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/map_in_map_btf.c b/tools/testing/selftests/bpf/progs/map_in_map_btf.c
new file mode 100644
index 000000000000..7a1336d7b16a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_in_map_btf.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct node_data {
+	__u64 data;
+	struct bpf_list_node node;
+};
+
+struct map_value {
+	struct bpf_list_head head __contains(node_data, node);
+	struct bpf_spin_lock lock;
+};
+
+struct inner_array_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} inner_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+	__array(values, struct inner_array_type);
+} outer_array SEC(".maps") = {
+	.values = {
+		[0] = &inner_array,
+	},
+};
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+bool done = false;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int add_to_list_in_inner_array(void *ctx)
+{
+	struct map_value *value;
+	struct node_data *new;
+	struct bpf_map *map;
+	int zero = 0;
+
+	if (done || (u32)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	map = bpf_map_lookup_elem(&outer_array, &zero);
+	if (!map)
+		return 0;
+
+	value = bpf_map_lookup_elem(map, &zero);
+	if (!value)
+		return 0;
+
+	new = bpf_obj_new(typeof(*new));
+	if (!new)
+		return 0;
+
+	bpf_spin_lock(&value->lock);
+	bpf_list_push_back(&value->head, &new->node);
+	bpf_spin_unlock(&value->lock);
+	done = true;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/map_kptr.c b/tools/testing/selftests/bpf/progs/map_kptr.c
new file mode 100644
index 000000000000..edaba481db9d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_kptr.c
@@ -0,0 +1,540 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+struct map_value {
+	struct prog_test_ref_kfunc __kptr_untrusted *unref_ptr;
+	struct prog_test_ref_kfunc __kptr *ref_ptr;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} array_map SEC(".maps");
+
+struct pcpu_array_map {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} pcpu_array_map SEC(".maps");
+
+struct hash_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} hash_map SEC(".maps");
+
+struct pcpu_hash_map {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} pcpu_hash_map SEC(".maps");
+
+struct hash_malloc_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} hash_malloc_map SEC(".maps");
+
+struct pcpu_hash_malloc_map {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} pcpu_hash_malloc_map SEC(".maps");
+
+struct lru_hash_map {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} lru_hash_map SEC(".maps");
+
+struct lru_pcpu_hash_map {
+	__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} lru_pcpu_hash_map SEC(".maps");
+
+struct cgrp_ls_map {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct map_value);
+} cgrp_ls_map SEC(".maps");
+
+struct task_ls_map {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct map_value);
+} task_ls_map SEC(".maps");
+
+struct inode_ls_map {
+	__uint(type, BPF_MAP_TYPE_INODE_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct map_value);
+} inode_ls_map SEC(".maps");
+
+struct sk_ls_map {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct map_value);
+} sk_ls_map SEC(".maps");
+
+#define DEFINE_MAP_OF_MAP(map_type, inner_map_type, name)       \
+	struct {                                                \
+		__uint(type, map_type);                         \
+		__uint(max_entries, 1);                         \
+		__uint(key_size, sizeof(int));                  \
+		__uint(value_size, sizeof(int));                \
+		__array(values, struct inner_map_type);         \
+	} name SEC(".maps") = {                                 \
+		.values = { [0] = &inner_map_type },            \
+	}
+
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, array_map, array_of_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, hash_map, array_of_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, hash_malloc_map, array_of_hash_malloc_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, lru_hash_map, array_of_lru_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, pcpu_array_map, array_of_pcpu_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_ARRAY_OF_MAPS, pcpu_hash_map, array_of_pcpu_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, array_map, hash_of_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, hash_map, hash_of_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, hash_malloc_map, hash_of_hash_malloc_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, lru_hash_map, hash_of_lru_hash_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, pcpu_array_map, hash_of_pcpu_array_maps);
+DEFINE_MAP_OF_MAP(BPF_MAP_TYPE_HASH_OF_MAPS, pcpu_hash_map, hash_of_pcpu_hash_maps);
+
+#define WRITE_ONCE(x, val) ((*(volatile typeof(x) *) &(x)) = (val))
+
+static void test_kptr_unref(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = v->unref_ptr;
+	/* store untrusted_ptr_or_null_ */
+	WRITE_ONCE(v->unref_ptr, p);
+	if (!p)
+		return;
+	if (p->a + p->b > 100)
+		return;
+	/* store untrusted_ptr_ */
+	WRITE_ONCE(v->unref_ptr, p);
+	/* store NULL */
+	WRITE_ONCE(v->unref_ptr, NULL);
+}
+
+static void test_kptr_ref(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p;
+
+	p = v->ref_ptr;
+	/* store ptr_or_null_ */
+	WRITE_ONCE(v->unref_ptr, p);
+	if (!p)
+		return;
+	/*
+	 * p is rcu_ptr_prog_test_ref_kfunc,
+	 * because bpf prog is non-sleepable and runs in RCU CS.
+	 * p can be passed to kfunc that requires KF_RCU.
+	 */
+	bpf_kfunc_call_test_ref(p);
+	if (p->a + p->b > 100)
+		return;
+	/* store NULL */
+	p = bpf_kptr_xchg(&v->ref_ptr, NULL);
+	if (!p)
+		return;
+	/*
+	 * p is trusted_ptr_prog_test_ref_kfunc.
+	 * p can be passed to kfunc that requires KF_RCU.
+	 */
+	bpf_kfunc_call_test_ref(p);
+	if (p->a + p->b > 100) {
+		bpf_kfunc_call_test_release(p);
+		return;
+	}
+	/* store ptr_ */
+	WRITE_ONCE(v->unref_ptr, p);
+	bpf_kfunc_call_test_release(p);
+
+	p = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+	if (!p)
+		return;
+	/* store ptr_ */
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (!p)
+		return;
+	if (p->a + p->b > 100) {
+		bpf_kfunc_call_test_release(p);
+		return;
+	}
+	bpf_kfunc_call_test_release(p);
+}
+
+static void test_kptr(struct map_value *v)
+{
+	test_kptr_unref(v);
+	test_kptr_ref(v);
+}
+
+SEC("tc")
+int test_map_kptr(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+#define TEST(map)					\
+	v = bpf_map_lookup_elem(&map, &key);		\
+	if (!v)						\
+		return 0;				\
+	test_kptr(v)
+
+	TEST(array_map);
+	TEST(hash_map);
+	TEST(hash_malloc_map);
+	TEST(lru_hash_map);
+	TEST(pcpu_array_map);
+	TEST(pcpu_hash_map);
+
+#undef TEST
+	return 0;
+}
+
+SEC("tp_btf/cgroup_mkdir")
+int BPF_PROG(test_cgrp_map_kptr, struct cgroup *cgrp, const char *path)
+{
+	struct map_value *v;
+
+	v = bpf_cgrp_storage_get(&cgrp_ls_map, cgrp, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (v)
+		test_kptr(v);
+	return 0;
+}
+
+SEC("lsm/inode_unlink")
+int BPF_PROG(test_task_map_kptr, struct inode *inode, struct dentry *victim)
+{
+	struct task_struct *task;
+	struct map_value *v;
+
+	task = bpf_get_current_task_btf();
+	if (!task)
+		return 0;
+	v = bpf_task_storage_get(&task_ls_map, task, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (v)
+		test_kptr(v);
+	return 0;
+}
+
+SEC("lsm/inode_unlink")
+int BPF_PROG(test_inode_map_kptr, struct inode *inode, struct dentry *victim)
+{
+	struct map_value *v;
+
+	v = bpf_inode_storage_get(&inode_ls_map, inode, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (v)
+		test_kptr(v);
+	return 0;
+}
+
+SEC("tc")
+int test_sk_map_kptr(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	struct bpf_sock *sk;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 0;
+	v = bpf_sk_storage_get(&sk_ls_map, sk, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (v)
+		test_kptr(v);
+	return 0;
+}
+
+SEC("tc")
+int test_map_in_map_kptr(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+	void *map;
+
+#define TEST(map_in_map)                                \
+	map = bpf_map_lookup_elem(&map_in_map, &key);   \
+	if (!map)                                       \
+		return 0;                               \
+	v = bpf_map_lookup_elem(map, &key);		\
+	if (!v)						\
+		return 0;				\
+	test_kptr(v)
+
+	TEST(array_of_array_maps);
+	TEST(array_of_hash_maps);
+	TEST(array_of_hash_malloc_maps);
+	TEST(array_of_lru_hash_maps);
+	TEST(array_of_pcpu_array_maps);
+	TEST(array_of_pcpu_hash_maps);
+	TEST(hash_of_array_maps);
+	TEST(hash_of_hash_maps);
+	TEST(hash_of_hash_malloc_maps);
+	TEST(hash_of_lru_hash_maps);
+	TEST(hash_of_pcpu_array_maps);
+	TEST(hash_of_pcpu_hash_maps);
+
+#undef TEST
+	return 0;
+}
+
+int ref = 1;
+
+static __always_inline
+int test_map_kptr_ref_pre(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p, *p_st;
+	unsigned long arg = 0;
+	int ret;
+
+	p = bpf_kfunc_call_test_acquire(&arg);
+	if (!p)
+		return 1;
+	ref++;
+
+	p_st = p->next;
+	if (p_st->cnt.refs.counter != ref) {
+		ret = 2;
+		goto end;
+	}
+
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (p) {
+		ret = 3;
+		goto end;
+	}
+	if (p_st->cnt.refs.counter != ref)
+		return 4;
+
+	p = bpf_kptr_xchg(&v->ref_ptr, NULL);
+	if (!p)
+		return 5;
+	bpf_kfunc_call_test_release(p);
+	ref--;
+	if (p_st->cnt.refs.counter != ref)
+		return 6;
+
+	p = bpf_kfunc_call_test_acquire(&arg);
+	if (!p)
+		return 7;
+	ref++;
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (p) {
+		ret = 8;
+		goto end;
+	}
+	if (p_st->cnt.refs.counter != ref)
+		return 9;
+	/* Leave in map */
+
+	return 0;
+end:
+	ref--;
+	bpf_kfunc_call_test_release(p);
+	return ret;
+}
+
+static __always_inline
+int test_map_kptr_ref_post(struct map_value *v)
+{
+	struct prog_test_ref_kfunc *p, *p_st;
+
+	p_st = v->ref_ptr;
+	if (!p_st || p_st->cnt.refs.counter != ref)
+		return 1;
+
+	p = bpf_kptr_xchg(&v->ref_ptr, NULL);
+	if (!p)
+		return 2;
+	if (p_st->cnt.refs.counter != ref) {
+		bpf_kfunc_call_test_release(p);
+		return 3;
+	}
+
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (p) {
+		bpf_kfunc_call_test_release(p);
+		return 4;
+	}
+	if (p_st->cnt.refs.counter != ref)
+		return 5;
+
+	return 0;
+}
+
+#define TEST(map)                            \
+	v = bpf_map_lookup_elem(&map, &key); \
+	if (!v)                              \
+		return -1;                   \
+	ret = test_map_kptr_ref_pre(v);      \
+	if (ret)                             \
+		return ret;
+
+#define TEST_PCPU(map)                                 \
+	v = bpf_map_lookup_percpu_elem(&map, &key, 0); \
+	if (!v)                                        \
+		return -1;                             \
+	ret = test_map_kptr_ref_pre(v);                \
+	if (ret)                                       \
+		return ret;
+
+SEC("tc")
+int test_map_kptr_ref1(struct __sk_buff *ctx)
+{
+	struct map_value *v, val = {};
+	int key = 0, ret;
+
+	bpf_map_update_elem(&hash_map, &key, &val, 0);
+	bpf_map_update_elem(&hash_malloc_map, &key, &val, 0);
+	bpf_map_update_elem(&lru_hash_map, &key, &val, 0);
+
+	bpf_map_update_elem(&pcpu_hash_map, &key, &val, 0);
+	bpf_map_update_elem(&pcpu_hash_malloc_map, &key, &val, 0);
+	bpf_map_update_elem(&lru_pcpu_hash_map, &key, &val, 0);
+
+	TEST(array_map);
+	TEST(hash_map);
+	TEST(hash_malloc_map);
+	TEST(lru_hash_map);
+
+	TEST_PCPU(pcpu_array_map);
+	TEST_PCPU(pcpu_hash_map);
+	TEST_PCPU(pcpu_hash_malloc_map);
+	TEST_PCPU(lru_pcpu_hash_map);
+
+	return 0;
+}
+
+#undef TEST
+#undef TEST_PCPU
+
+#define TEST(map)                            \
+	v = bpf_map_lookup_elem(&map, &key); \
+	if (!v)                              \
+		return -1;                   \
+	ret = test_map_kptr_ref_post(v);     \
+	if (ret)                             \
+		return ret;
+
+#define TEST_PCPU(map)                                 \
+	v = bpf_map_lookup_percpu_elem(&map, &key, 0); \
+	if (!v)                                        \
+		return -1;                             \
+	ret = test_map_kptr_ref_post(v);               \
+	if (ret)                                       \
+		return ret;
+
+SEC("tc")
+int test_map_kptr_ref2(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0, ret;
+
+	TEST(array_map);
+	TEST(hash_map);
+	TEST(hash_malloc_map);
+	TEST(lru_hash_map);
+
+	TEST_PCPU(pcpu_array_map);
+	TEST_PCPU(pcpu_hash_map);
+	TEST_PCPU(pcpu_hash_malloc_map);
+	TEST_PCPU(lru_pcpu_hash_map);
+
+	return 0;
+}
+
+#undef TEST
+#undef TEST_PCPU
+
+SEC("tc")
+int test_map_kptr_ref3(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	unsigned long sp = 0;
+
+	p = bpf_kfunc_call_test_acquire(&sp);
+	if (!p)
+		return 1;
+	ref++;
+	if (p->cnt.refs.counter != ref) {
+		bpf_kfunc_call_test_release(p);
+		return 2;
+	}
+	bpf_kfunc_call_test_release(p);
+	ref--;
+	return 0;
+}
+
+SEC("syscall")
+int test_ls_map_kptr_ref1(void *ctx)
+{
+	struct task_struct *current;
+	struct map_value *v;
+
+	current = bpf_get_current_task_btf();
+	if (!current)
+		return 100;
+	v = bpf_task_storage_get(&task_ls_map, current, NULL, 0);
+	if (v)
+		return 150;
+	v = bpf_task_storage_get(&task_ls_map, current, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!v)
+		return 200;
+	return test_map_kptr_ref_pre(v);
+}
+
+SEC("syscall")
+int test_ls_map_kptr_ref2(void *ctx)
+{
+	struct task_struct *current;
+	struct map_value *v;
+
+	current = bpf_get_current_task_btf();
+	if (!current)
+		return 100;
+	v = bpf_task_storage_get(&task_ls_map, current, NULL, 0);
+	if (!v)
+		return 200;
+	return test_map_kptr_ref_post(v);
+}
+
+SEC("syscall")
+int test_ls_map_kptr_ref_del(void *ctx)
+{
+	struct task_struct *current;
+	struct map_value *v;
+
+	current = bpf_get_current_task_btf();
+	if (!current)
+		return 100;
+	v = bpf_task_storage_get(&task_ls_map, current, NULL, 0);
+	if (!v)
+		return 200;
+	if (!v->ref_ptr)
+		return 300;
+	return bpf_task_storage_delete(&task_ls_map, current);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/map_kptr_fail.c b/tools/testing/selftests/bpf/progs/map_kptr_fail.c
new file mode 100644
index 000000000000..4c0ff01f1a96
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_kptr_fail.c
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+struct map_value {
+	char buf[8];
+	struct prog_test_ref_kfunc __kptr_untrusted *unref_ptr;
+	struct prog_test_ref_kfunc __kptr *ref_ptr;
+	struct prog_test_member __kptr *ref_memb_ptr;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} array_map SEC(".maps");
+
+SEC("?tc")
+__failure __msg("kptr access size must be BPF_DW")
+int size_not_bpf_dw(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	*(u32 *)&v->unref_ptr = 0;
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("kptr access cannot have variable offset")
+int non_const_var_off(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0, id;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	id = ctx->protocol;
+	if (id < 4 || id > 12)
+		return 0;
+	*(u64 *)((void *)v + id) = 0;
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("R1 doesn't have constant offset. kptr has to be")
+int non_const_var_off_kptr_xchg(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0, id;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	id = ctx->protocol;
+	if (id < 4 || id > 12)
+		return 0;
+	bpf_kptr_xchg((void *)v + id, NULL);
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("kptr access misaligned expected=8 off=7")
+int misaligned_access_write(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	*(void **)((void *)v + 7) = NULL;
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("kptr access misaligned expected=8 off=1")
+int misaligned_access_read(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	return *(u64 *)((void *)v + 1);
+}
+
+SEC("?tc")
+__failure __msg("variable untrusted_ptr_ access var_off=(0x0; 0x1e0)")
+int reject_var_off_store(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *unref_ptr;
+	struct map_value *v;
+	int key = 0, id;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	unref_ptr = v->unref_ptr;
+	if (!unref_ptr)
+		return 0;
+	id = ctx->protocol;
+	if (id < 4 || id > 12)
+		return 0;
+	unref_ptr += id;
+	v->unref_ptr = unref_ptr;
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("invalid kptr access, R1 type=untrusted_ptr_prog_test_ref_kfunc")
+int reject_bad_type_match(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *unref_ptr;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	unref_ptr = v->unref_ptr;
+	if (!unref_ptr)
+		return 0;
+	unref_ptr = (void *)unref_ptr + 4;
+	v->unref_ptr = unref_ptr;
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("R1 type=untrusted_ptr_or_null_ expected=percpu_ptr_")
+int marked_as_untrusted_or_null(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	bpf_this_cpu_ptr(v->unref_ptr);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("access beyond struct prog_test_ref_kfunc at off 32 size 4")
+int correct_btf_id_check_size(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	p = v->unref_ptr;
+	if (!p)
+		return 0;
+	return *(int *)((void *)p + bpf_core_type_size(struct prog_test_ref_kfunc));
+}
+
+SEC("?tc")
+__failure __msg("R1 type=untrusted_ptr_ expected=percpu_ptr_")
+int inherit_untrusted_on_walk(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *unref_ptr;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	unref_ptr = v->unref_ptr;
+	if (!unref_ptr)
+		return 0;
+	unref_ptr = unref_ptr->next;
+	bpf_this_cpu_ptr(unref_ptr);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("off=8 kptr isn't referenced kptr")
+int reject_kptr_xchg_on_unref(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	bpf_kptr_xchg(&v->unref_ptr, NULL);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("R1 type=rcu_ptr_or_null_ expected=percpu_ptr_")
+int mark_ref_as_untrusted_or_null(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	bpf_this_cpu_ptr(v->ref_ptr);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("store to referenced kptr disallowed")
+int reject_untrusted_store_to_ref(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	p = v->ref_ptr;
+	if (!p)
+		return 0;
+	/* Checkmate, clang */
+	*(struct prog_test_ref_kfunc * volatile *)&v->ref_ptr = p;
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("R2 must be referenced")
+int reject_untrusted_xchg(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	p = v->ref_ptr;
+	if (!p)
+		return 0;
+	bpf_kptr_xchg(&v->ref_ptr, p);
+	return 0;
+}
+
+SEC("?tc")
+__failure
+__msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc expected=ptr_prog_test_member")
+int reject_bad_type_xchg(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *ref_ptr;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	ref_ptr = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+	if (!ref_ptr)
+		return 0;
+	bpf_kptr_xchg(&v->ref_memb_ptr, ref_ptr);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("invalid kptr access, R2 type=ptr_prog_test_ref_kfunc")
+int reject_member_of_ref_xchg(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *ref_ptr;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	ref_ptr = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+	if (!ref_ptr)
+		return 0;
+	bpf_kptr_xchg(&v->ref_memb_ptr, &ref_ptr->memb);
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("kptr cannot be accessed indirectly by helper")
+int reject_indirect_helper_access(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	bpf_get_current_comm(v, sizeof(v->buf) + 1);
+	return 0;
+}
+
+__noinline
+int write_func(int *p)
+{
+	return p ? *p = 42 : 0;
+}
+
+SEC("?tc")
+__failure __msg("kptr cannot be accessed indirectly by helper")
+int reject_indirect_global_func_access(struct __sk_buff *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	return write_func((void *)v + 5);
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference id=4 alloc_insn=")
+int kptr_xchg_ref_state(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	p = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+	if (!p)
+		return 0;
+	bpf_kptr_xchg(&v->ref_ptr, p);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Possibly NULL pointer passed to helper arg2")
+int kptr_xchg_possibly_null(struct __sk_buff *ctx)
+{
+	struct prog_test_ref_kfunc *p;
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&array_map, &key);
+	if (!v)
+		return 0;
+
+	p = bpf_kfunc_call_test_acquire(&(unsigned long){0});
+
+	/* PTR_TO_BTF_ID | PTR_MAYBE_NULL passed to bpf_kptr_xchg() */
+	p = bpf_kptr_xchg(&v->ref_ptr, p);
+	if (p)
+		bpf_kfunc_call_test_release(p);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/map_percpu_stats.c b/tools/testing/selftests/bpf/progs/map_percpu_stats.c
new file mode 100644
index 000000000000..63245785eb69
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_percpu_stats.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+__u32 target_id;
+
+__s64 bpf_map_sum_elem_count(const struct bpf_map *map) __ksym;
+
+SEC("iter/bpf_map")
+int dump_bpf_map(struct bpf_iter__bpf_map *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct bpf_map *map = ctx->map;
+
+	if (map && map->id == target_id)
+		BPF_SEQ_PRINTF(seq, "%lld", bpf_map_sum_elem_count(map));
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/map_ptr_kern.c b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
new file mode 100644
index 000000000000..efaf622c28dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
@@ -0,0 +1,703 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define LOOP_BOUND 0xf
+#define MAX_ENTRIES 8
+#define HALF_ENTRIES (MAX_ENTRIES >> 1)
+
+_Static_assert(MAX_ENTRIES < LOOP_BOUND, "MAX_ENTRIES must be < LOOP_BOUND");
+
+enum bpf_map_type g_map_type = BPF_MAP_TYPE_UNSPEC;
+__u32 g_line = 0;
+int page_size = 0; /* userspace should set it */
+
+#define VERIFY_TYPE(type, func) ({	\
+	g_map_type = type;		\
+	if (!func())			\
+		return 0;		\
+})
+
+
+#define VERIFY(expr) ({		\
+	g_line = __LINE__;	\
+	if (!(expr))		\
+		return 0;	\
+})
+
+struct bpf_map {
+	enum bpf_map_type map_type;
+	__u32 key_size;
+	__u32 value_size;
+	__u32 max_entries;
+	__u32 id;
+} __attribute__((preserve_access_index));
+
+static inline int check_bpf_map_fields(struct bpf_map *map, __u32 key_size,
+				       __u32 value_size, __u32 max_entries)
+{
+	VERIFY(map->map_type == g_map_type);
+	VERIFY(map->key_size == key_size);
+	VERIFY(map->value_size == value_size);
+	VERIFY(map->max_entries == max_entries);
+	VERIFY(map->id > 0);
+
+	return 1;
+}
+
+static inline int check_bpf_map_ptr(struct bpf_map *indirect,
+				    struct bpf_map *direct)
+{
+	VERIFY(indirect->map_type == direct->map_type);
+	VERIFY(indirect->key_size == direct->key_size);
+	VERIFY(indirect->value_size == direct->value_size);
+	VERIFY(indirect->max_entries == direct->max_entries);
+	VERIFY(indirect->id == direct->id);
+
+	return 1;
+}
+
+static inline int check(struct bpf_map *indirect, struct bpf_map *direct,
+			__u32 key_size, __u32 value_size, __u32 max_entries)
+{
+	VERIFY(check_bpf_map_ptr(indirect, direct));
+	VERIFY(check_bpf_map_fields(indirect, key_size, value_size,
+				    max_entries));
+	return 1;
+}
+
+static inline int check_default(struct bpf_map *indirect,
+				struct bpf_map *direct)
+{
+	VERIFY(check(indirect, direct, sizeof(__u32), sizeof(__u32),
+		     MAX_ENTRIES));
+	return 1;
+}
+
+static __noinline int
+check_default_noinline(struct bpf_map *indirect, struct bpf_map *direct)
+{
+	VERIFY(check(indirect, direct, sizeof(__u32), sizeof(__u32),
+		     MAX_ENTRIES));
+	return 1;
+}
+
+typedef struct {
+	int counter;
+} atomic_t;
+
+struct bpf_htab {
+	struct bpf_map map;
+	atomic_t count;
+	__u32 n_buckets;
+	__u32 elem_size;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC); /* to test bpf_htab.count */
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_hash SEC(".maps");
+
+__s64 bpf_map_sum_elem_count(struct bpf_map *map) __ksym;
+
+static inline int check_hash(void)
+{
+	struct bpf_htab *hash = (struct bpf_htab *)&m_hash;
+	struct bpf_map *map = (struct bpf_map *)&m_hash;
+	int i;
+
+	VERIFY(check_default_noinline(&hash->map, map));
+
+	VERIFY(hash->n_buckets == MAX_ENTRIES);
+	VERIFY(hash->elem_size == 64);
+
+	VERIFY(hash->count.counter == 0);
+	VERIFY(bpf_map_sum_elem_count(map) == 0);
+
+	for (i = 0; i < HALF_ENTRIES; ++i) {
+		const __u32 key = i;
+		const __u32 val = 1;
+
+		if (bpf_map_update_elem(hash, &key, &val, 0))
+			return 0;
+	}
+	VERIFY(hash->count.counter == HALF_ENTRIES);
+	VERIFY(bpf_map_sum_elem_count(map) == HALF_ENTRIES);
+
+	return 1;
+}
+
+struct bpf_array {
+	struct bpf_map map;
+	__u32 elem_size;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_array SEC(".maps");
+
+static inline int check_array(void)
+{
+	struct bpf_array *array = (struct bpf_array *)&m_array;
+	struct bpf_map *map = (struct bpf_map *)&m_array;
+	int i, n_lookups = 0, n_keys = 0;
+
+	VERIFY(check_default(&array->map, map));
+
+	VERIFY(array->elem_size == 8);
+
+	for (i = 0; i < array->map.max_entries && i < LOOP_BOUND; ++i) {
+		const __u32 key = i;
+		__u32 *val = bpf_map_lookup_elem(array, &key);
+
+		++n_lookups;
+		if (val)
+			++n_keys;
+	}
+
+	VERIFY(n_lookups == MAX_ENTRIES);
+	VERIFY(n_keys == MAX_ENTRIES);
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_prog_array SEC(".maps");
+
+static inline int check_prog_array(void)
+{
+	struct bpf_array *prog_array = (struct bpf_array *)&m_prog_array;
+	struct bpf_map *map = (struct bpf_map *)&m_prog_array;
+
+	VERIFY(check_default(&prog_array->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_perf_event_array SEC(".maps");
+
+static inline int check_perf_event_array(void)
+{
+	struct bpf_array *perf_event_array = (struct bpf_array *)&m_perf_event_array;
+	struct bpf_map *map = (struct bpf_map *)&m_perf_event_array;
+
+	VERIFY(check_default(&perf_event_array->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_percpu_hash SEC(".maps");
+
+static inline int check_percpu_hash(void)
+{
+	struct bpf_htab *percpu_hash = (struct bpf_htab *)&m_percpu_hash;
+	struct bpf_map *map = (struct bpf_map *)&m_percpu_hash;
+
+	VERIFY(check_default(&percpu_hash->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_percpu_array SEC(".maps");
+
+static inline int check_percpu_array(void)
+{
+	struct bpf_array *percpu_array = (struct bpf_array *)&m_percpu_array;
+	struct bpf_map *map = (struct bpf_map *)&m_percpu_array;
+
+	VERIFY(check_default(&percpu_array->map, map));
+
+	return 1;
+}
+
+struct bpf_stack_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u64);
+} m_stack_trace SEC(".maps");
+
+static inline int check_stack_trace(void)
+{
+	struct bpf_stack_map *stack_trace =
+		(struct bpf_stack_map *)&m_stack_trace;
+	struct bpf_map *map = (struct bpf_map *)&m_stack_trace;
+
+	VERIFY(check(&stack_trace->map, map, sizeof(__u32), sizeof(__u64),
+		     MAX_ENTRIES));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_ARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_cgroup_array SEC(".maps");
+
+static inline int check_cgroup_array(void)
+{
+	struct bpf_array *cgroup_array = (struct bpf_array *)&m_cgroup_array;
+	struct bpf_map *map = (struct bpf_map *)&m_cgroup_array;
+
+	VERIFY(check_default(&cgroup_array->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_lru_hash SEC(".maps");
+
+static inline int check_lru_hash(void)
+{
+	struct bpf_htab *lru_hash = (struct bpf_htab *)&m_lru_hash;
+	struct bpf_map *map = (struct bpf_map *)&m_lru_hash;
+
+	VERIFY(check_default(&lru_hash->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_lru_percpu_hash SEC(".maps");
+
+static inline int check_lru_percpu_hash(void)
+{
+	struct bpf_htab *lru_percpu_hash = (struct bpf_htab *)&m_lru_percpu_hash;
+	struct bpf_map *map = (struct bpf_map *)&m_lru_percpu_hash;
+
+	VERIFY(check_default(&lru_percpu_hash->map, map));
+
+	return 1;
+}
+
+struct lpm_trie {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct lpm_key {
+	struct bpf_lpm_trie_key_hdr trie_key;
+	__u32 data;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LPM_TRIE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, struct lpm_key);
+	__type(value, __u32);
+} m_lpm_trie SEC(".maps");
+
+static inline int check_lpm_trie(void)
+{
+	struct lpm_trie *lpm_trie = (struct lpm_trie *)&m_lpm_trie;
+	struct bpf_map *map = (struct bpf_map *)&m_lpm_trie;
+
+	VERIFY(check(&lpm_trie->map, map, sizeof(struct lpm_key), sizeof(__u32),
+		     MAX_ENTRIES));
+
+	return 1;
+}
+
+#define INNER_MAX_ENTRIES 1234
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, INNER_MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_ARRAY);
+		__uint(max_entries, INNER_MAX_ENTRIES);
+		__type(key, __u32);
+		__type(value, __u32);
+	});
+} m_array_of_maps SEC(".maps") = {
+	.values = { (void *)&inner_map, 0, 0, 0, 0, 0, 0, 0, 0 },
+};
+
+static inline int check_array_of_maps(void)
+{
+	struct bpf_array *array_of_maps = (struct bpf_array *)&m_array_of_maps;
+	struct bpf_map *map = (struct bpf_map *)&m_array_of_maps;
+	struct bpf_array *inner_map;
+	int key = 0;
+
+	VERIFY(check_default(&array_of_maps->map, map));
+	inner_map = bpf_map_lookup_elem(array_of_maps, &key);
+	VERIFY(inner_map != NULL);
+	VERIFY(inner_map->map.max_entries == INNER_MAX_ENTRIES);
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+	__array(values, struct inner_map);
+} m_hash_of_maps SEC(".maps") = {
+	.values = {
+		[2] = &inner_map,
+	},
+};
+
+static inline int check_hash_of_maps(void)
+{
+	struct bpf_htab *hash_of_maps = (struct bpf_htab *)&m_hash_of_maps;
+	struct bpf_map *map = (struct bpf_map *)&m_hash_of_maps;
+	struct bpf_htab *inner_map;
+	int key = 2;
+
+	VERIFY(check_default(&hash_of_maps->map, map));
+	inner_map = bpf_map_lookup_elem(hash_of_maps, &key);
+	VERIFY(inner_map != NULL);
+	VERIFY(inner_map->map.max_entries == INNER_MAX_ENTRIES);
+
+	return 1;
+}
+
+struct bpf_dtab {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_devmap SEC(".maps");
+
+static inline int check_devmap(void)
+{
+	struct bpf_dtab *devmap = (struct bpf_dtab *)&m_devmap;
+	struct bpf_map *map = (struct bpf_map *)&m_devmap;
+
+	VERIFY(check_default(&devmap->map, map));
+
+	return 1;
+}
+
+struct bpf_stab {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_sockmap SEC(".maps");
+
+static inline int check_sockmap(void)
+{
+	struct bpf_stab *sockmap = (struct bpf_stab *)&m_sockmap;
+	struct bpf_map *map = (struct bpf_map *)&m_sockmap;
+
+	VERIFY(check_default(&sockmap->map, map));
+
+	return 1;
+}
+
+struct bpf_cpu_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CPUMAP);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_cpumap SEC(".maps");
+
+static inline int check_cpumap(void)
+{
+	struct bpf_cpu_map *cpumap = (struct bpf_cpu_map *)&m_cpumap;
+	struct bpf_map *map = (struct bpf_map *)&m_cpumap;
+
+	VERIFY(check_default(&cpumap->map, map));
+
+	return 1;
+}
+
+struct xsk_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_xskmap SEC(".maps");
+
+static inline int check_xskmap(void)
+{
+	struct xsk_map *xskmap = (struct xsk_map *)&m_xskmap;
+	struct bpf_map *map = (struct bpf_map *)&m_xskmap;
+
+	VERIFY(check_default(&xskmap->map, map));
+
+	return 1;
+}
+
+struct bpf_shtab {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_sockhash SEC(".maps");
+
+static inline int check_sockhash(void)
+{
+	struct bpf_shtab *sockhash = (struct bpf_shtab *)&m_sockhash;
+	struct bpf_map *map = (struct bpf_map *)&m_sockhash;
+
+	VERIFY(check_default(&sockhash->map, map));
+
+	return 1;
+}
+
+struct bpf_cgroup_storage_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, __u32);
+} m_cgroup_storage SEC(".maps");
+
+static inline int check_cgroup_storage(void)
+{
+	struct bpf_cgroup_storage_map *cgroup_storage =
+		(struct bpf_cgroup_storage_map *)&m_cgroup_storage;
+	struct bpf_map *map = (struct bpf_map *)&m_cgroup_storage;
+
+	VERIFY(check(&cgroup_storage->map, map,
+		     sizeof(struct bpf_cgroup_storage_key), sizeof(__u32), 0));
+
+	return 1;
+}
+
+struct reuseport_array {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_reuseport_sockarray SEC(".maps");
+
+static inline int check_reuseport_sockarray(void)
+{
+	struct reuseport_array *reuseport_sockarray =
+		(struct reuseport_array *)&m_reuseport_sockarray;
+	struct bpf_map *map = (struct bpf_map *)&m_reuseport_sockarray;
+
+	VERIFY(check_default(&reuseport_sockarray->map, map));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, __u32);
+} m_percpu_cgroup_storage SEC(".maps");
+
+static inline int check_percpu_cgroup_storage(void)
+{
+	struct bpf_cgroup_storage_map *percpu_cgroup_storage =
+		(struct bpf_cgroup_storage_map *)&m_percpu_cgroup_storage;
+	struct bpf_map *map = (struct bpf_map *)&m_percpu_cgroup_storage;
+
+	VERIFY(check(&percpu_cgroup_storage->map, map,
+		     sizeof(struct bpf_cgroup_storage_key), sizeof(__u32), 0));
+
+	return 1;
+}
+
+struct bpf_queue_stack {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_QUEUE);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(value, __u32);
+} m_queue SEC(".maps");
+
+static inline int check_queue(void)
+{
+	struct bpf_queue_stack *queue = (struct bpf_queue_stack *)&m_queue;
+	struct bpf_map *map = (struct bpf_map *)&m_queue;
+
+	VERIFY(check(&queue->map, map, 0, sizeof(__u32), MAX_ENTRIES));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(value, __u32);
+} m_stack SEC(".maps");
+
+static inline int check_stack(void)
+{
+	struct bpf_queue_stack *stack = (struct bpf_queue_stack *)&m_stack;
+	struct bpf_map *map = (struct bpf_map *)&m_stack;
+
+	VERIFY(check(&stack->map, map, 0, sizeof(__u32), MAX_ENTRIES));
+
+	return 1;
+}
+
+struct bpf_local_storage_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_sk_storage SEC(".maps");
+
+static inline int check_sk_storage(void)
+{
+	struct bpf_local_storage_map *sk_storage =
+		(struct bpf_local_storage_map *)&m_sk_storage;
+	struct bpf_map *map = (struct bpf_map *)&m_sk_storage;
+
+	VERIFY(check(&sk_storage->map, map, sizeof(__u32), sizeof(__u32), 0));
+
+	return 1;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP_HASH);
+	__uint(max_entries, MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} m_devmap_hash SEC(".maps");
+
+static inline int check_devmap_hash(void)
+{
+	struct bpf_dtab *devmap_hash = (struct bpf_dtab *)&m_devmap_hash;
+	struct bpf_map *map = (struct bpf_map *)&m_devmap_hash;
+
+	VERIFY(check_default(&devmap_hash->map, map));
+
+	return 1;
+}
+
+struct bpf_ringbuf_map {
+	struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} m_ringbuf SEC(".maps");
+
+static inline int check_ringbuf(void)
+{
+	struct bpf_ringbuf_map *ringbuf = (struct bpf_ringbuf_map *)&m_ringbuf;
+	struct bpf_map *map = (struct bpf_map *)&m_ringbuf;
+
+	VERIFY(check(&ringbuf->map, map, 0, 0, page_size));
+
+	return 1;
+}
+
+SEC("cgroup_skb/egress")
+int cg_skb(void *ctx)
+{
+	VERIFY_TYPE(BPF_MAP_TYPE_HASH, check_hash);
+	VERIFY_TYPE(BPF_MAP_TYPE_ARRAY, check_array);
+	VERIFY_TYPE(BPF_MAP_TYPE_PROG_ARRAY, check_prog_array);
+	VERIFY_TYPE(BPF_MAP_TYPE_PERF_EVENT_ARRAY, check_perf_event_array);
+	VERIFY_TYPE(BPF_MAP_TYPE_PERCPU_HASH, check_percpu_hash);
+	VERIFY_TYPE(BPF_MAP_TYPE_PERCPU_ARRAY, check_percpu_array);
+	VERIFY_TYPE(BPF_MAP_TYPE_STACK_TRACE, check_stack_trace);
+	VERIFY_TYPE(BPF_MAP_TYPE_CGROUP_ARRAY, check_cgroup_array);
+	VERIFY_TYPE(BPF_MAP_TYPE_LRU_HASH, check_lru_hash);
+	VERIFY_TYPE(BPF_MAP_TYPE_LRU_PERCPU_HASH, check_lru_percpu_hash);
+	VERIFY_TYPE(BPF_MAP_TYPE_LPM_TRIE, check_lpm_trie);
+	VERIFY_TYPE(BPF_MAP_TYPE_ARRAY_OF_MAPS, check_array_of_maps);
+	VERIFY_TYPE(BPF_MAP_TYPE_HASH_OF_MAPS, check_hash_of_maps);
+	VERIFY_TYPE(BPF_MAP_TYPE_DEVMAP, check_devmap);
+	VERIFY_TYPE(BPF_MAP_TYPE_SOCKMAP, check_sockmap);
+	VERIFY_TYPE(BPF_MAP_TYPE_CPUMAP, check_cpumap);
+	VERIFY_TYPE(BPF_MAP_TYPE_XSKMAP, check_xskmap);
+	VERIFY_TYPE(BPF_MAP_TYPE_SOCKHASH, check_sockhash);
+	VERIFY_TYPE(BPF_MAP_TYPE_CGROUP_STORAGE, check_cgroup_storage);
+	VERIFY_TYPE(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
+		    check_reuseport_sockarray);
+	VERIFY_TYPE(BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE,
+		    check_percpu_cgroup_storage);
+	VERIFY_TYPE(BPF_MAP_TYPE_QUEUE, check_queue);
+	VERIFY_TYPE(BPF_MAP_TYPE_STACK, check_stack);
+	VERIFY_TYPE(BPF_MAP_TYPE_SK_STORAGE, check_sk_storage);
+	VERIFY_TYPE(BPF_MAP_TYPE_DEVMAP_HASH, check_devmap_hash);
+	VERIFY_TYPE(BPF_MAP_TYPE_RINGBUF, check_ringbuf);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c b/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c
new file mode 100644
index 000000000000..3b984b6ae7c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mem_rdonly_untrusted.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("tp_btf/sys_enter")
+__success
+__log_level(2)
+__msg("r8 = *(u64 *)(r7 +0)          ; R7=ptr_nameidata(off={{[0-9]+}}) R8=rdonly_untrusted_mem(sz=0)")
+__msg("r9 = *(u8 *)(r8 +0)           ; R8=rdonly_untrusted_mem(sz=0) R9=scalar")
+int btf_id_to_ptr_mem(void *ctx)
+{
+	struct task_struct *task;
+	struct nameidata *idata;
+	u64 ret, off;
+
+	task = bpf_get_current_task_btf();
+	idata = task->nameidata;
+	off = bpf_core_field_offset(struct nameidata, pathname);
+	/*
+	 * asm block to have reliable match target for __msg, equivalent of:
+	 *   ret = task->nameidata->pathname[0];
+	 */
+	asm volatile (
+	"r7 = %[idata];"
+	"r7 += %[off];"
+	"r8 = *(u64 *)(r7 + 0);"
+	"r9 = *(u8 *)(r8 + 0);"
+	"%[ret] = r9;"
+	: [ret]"=r"(ret)
+	: [idata]"r"(idata),
+	  [off]"r"(off)
+	: "r7", "r8", "r9");
+	return ret;
+}
+
+SEC("socket")
+__success
+__retval(0)
+int ldx_is_ok_bad_addr(void *ctx)
+{
+	char *p;
+
+	if (!bpf_core_enum_value_exists(enum bpf_features, BPF_FEAT_RDONLY_CAST_TO_VOID))
+		return 42;
+
+	p = bpf_rdonly_cast(0, 0);
+	return p[0x7fff];
+}
+
+SEC("socket")
+__success
+__retval(1)
+int ldx_is_ok_good_addr(void *ctx)
+{
+	int v, *p;
+
+	v = 1;
+	p = bpf_rdonly_cast(&v, 0);
+	return *p;
+}
+
+SEC("socket")
+__success
+int offset_not_tracked(void *ctx)
+{
+	int *p, i, s;
+
+	p = bpf_rdonly_cast(0, 0);
+	s = 0;
+	bpf_for(i, 0, 1000 * 1000 * 1000) {
+		p++;
+		s += *p;
+	}
+	return s;
+}
+
+SEC("socket")
+__failure
+__msg("cannot write into rdonly_untrusted_mem")
+int stx_not_ok(void *ctx)
+{
+	int v, *p;
+
+	v = 1;
+	p = bpf_rdonly_cast(&v, 0);
+	*p = 1;
+	return 0;
+}
+
+SEC("socket")
+__failure
+__msg("cannot write into rdonly_untrusted_mem")
+int atomic_not_ok(void *ctx)
+{
+	int v, *p;
+
+	v = 1;
+	p = bpf_rdonly_cast(&v, 0);
+	__sync_fetch_and_add(p, 1);
+	return 0;
+}
+
+SEC("socket")
+__failure
+__msg("cannot write into rdonly_untrusted_mem")
+int atomic_rmw_not_ok(void *ctx)
+{
+	long v, *p;
+
+	v = 1;
+	p = bpf_rdonly_cast(&v, 0);
+	return __sync_val_compare_and_swap(p, 0, 42);
+}
+
+SEC("socket")
+__failure
+__msg("invalid access to memory, mem_size=0 off=0 size=4")
+__msg("R1 min value is outside of the allowed memory range")
+int kfunc_param_not_ok(void *ctx)
+{
+	int *p;
+
+	p = bpf_rdonly_cast(0, 0);
+	bpf_kfunc_trusted_num_test(p);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure
+__msg("R1 type=rdonly_untrusted_mem expected=")
+int helper_param_not_ok(void *ctx)
+{
+	char *p;
+
+	p = bpf_rdonly_cast(0, 0);
+	/*
+	 * Any helper with ARG_CONST_SIZE_OR_ZERO constraint will do,
+	 * the most permissive constraint
+	 */
+	bpf_copy_from_user(p, 0, (void *)42);
+	return 0;
+}
+
+static __noinline u64 *get_some_addr(void)
+{
+	if (bpf_get_prandom_u32())
+		return bpf_rdonly_cast(0, bpf_core_type_id_kernel(struct sock));
+	else
+		return bpf_rdonly_cast(0, 0);
+}
+
+SEC("socket")
+__success
+__retval(0)
+int mixed_mem_type(void *ctx)
+{
+	u64 *p;
+
+	/* Try to avoid compiler hoisting load to if branches by using __noinline func. */
+	p = get_some_addr();
+	return *p;
+}
+
+__attribute__((__aligned__(8)))
+u8 global[] = {
+	0x11, 0x22, 0x33, 0x44,
+	0x55, 0x66, 0x77, 0x88,
+	0x99
+};
+
+__always_inline
+static u64 combine(void *p)
+{
+	u64 acc;
+
+	acc = 0;
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	acc |= (*(u64 *)p >> 56) << 24;
+	acc |= (*(u32 *)p >> 24) << 16;
+	acc |= (*(u16 *)p >> 8)  << 8;
+	acc |= *(u8 *)p;
+#else
+	acc |= (*(u64 *)p & 0xff) << 24;
+	acc |= (*(u32 *)p & 0xff) << 16;
+	acc |= (*(u16 *)p & 0xff) << 8;
+	acc |= *(u8 *)p;
+#endif
+	return acc;
+}
+
+SEC("socket")
+__retval(0x88442211)
+int diff_size_access(void *ctx)
+{
+	return combine(bpf_rdonly_cast(&global, 0));
+}
+
+SEC("socket")
+__retval(0x99553322)
+int misaligned_access(void *ctx)
+{
+	return combine(bpf_rdonly_cast(&global, 0) + 1);
+}
+
+__weak int return_one(void)
+{
+	return 1;
+}
+
+SEC("socket")
+__success
+__retval(1)
+int null_check(void *ctx)
+{
+	int *p;
+
+	p = bpf_rdonly_cast(0, 0);
+	if (p == 0)
+		/* make this a function call to avoid compiler
+		 * moving r0 assignment before check.
+		 */
+		return return_one();
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/metadata_unused.c b/tools/testing/selftests/bpf/progs/metadata_unused.c
new file mode 100644
index 000000000000..672a0d19f8d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/metadata_unused.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+volatile const char bpf_metadata_a[] SEC(".rodata") = "foo";
+volatile const int bpf_metadata_b SEC(".rodata") = 1;
+
+SEC("cgroup_skb/egress")
+int prog(struct xdp_md *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/metadata_used.c b/tools/testing/selftests/bpf/progs/metadata_used.c
new file mode 100644
index 000000000000..b7198e65383d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/metadata_used.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+volatile const char bpf_metadata_a[] SEC(".rodata") = "bar";
+volatile const int bpf_metadata_b SEC(".rodata") = 2;
+
+SEC("cgroup_skb/egress")
+int prog(struct xdp_md *ctx)
+{
+	return bpf_metadata_b ? 1 : 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/missed_kprobe.c b/tools/testing/selftests/bpf/progs/missed_kprobe.c
new file mode 100644
index 000000000000..51a4fe64c917
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/missed_kprobe.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+SEC("kprobe/bpf_fentry_test1")
+int test1(struct pt_regs *ctx)
+{
+	bpf_kfunc_common_test();
+	return 0;
+}
+
+SEC("kprobe/bpf_kfunc_common_test")
+int test2(struct pt_regs *ctx)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c b/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c
new file mode 100644
index 000000000000..29c18d869ec1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/missed_kprobe_recursion.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+SEC("kprobe.multi/bpf_fentry_test1")
+int test1(struct pt_regs *ctx)
+{
+	bpf_kfunc_common_test();
+	return 0;
+}
+
+SEC("kprobe/bpf_kfunc_common_test")
+int test2(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe/bpf_kfunc_common_test")
+int test3(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe/bpf_kfunc_common_test")
+int test4(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe.multi/bpf_kfunc_common_test")
+int test5(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe.session/bpf_kfunc_common_test")
+int test6(struct pt_regs *ctx)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/missed_tp_recursion.c b/tools/testing/selftests/bpf/progs/missed_tp_recursion.c
new file mode 100644
index 000000000000..762385f827c5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/missed_tp_recursion.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+/*
+ * No tests in here, just to trigger 'bpf_fentry_test*'
+ * through tracing test_run
+ */
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(trigger)
+{
+	return 0;
+}
+
+SEC("kprobe/bpf_fentry_test1")
+int test1(struct pt_regs *ctx)
+{
+	bpf_printk("test");
+	return 0;
+}
+
+SEC("tp/bpf_trace/bpf_trace_printk")
+int test2(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("tp/bpf_trace/bpf_trace_printk")
+int test3(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("tp/bpf_trace/bpf_trace_printk")
+int test4(struct pt_regs *ctx)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/mmap_inner_array.c b/tools/testing/selftests/bpf/progs/mmap_inner_array.c
new file mode 100644
index 000000000000..90aacbc2938a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mmap_inner_array.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct inner_array_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(max_entries, 1);
+} inner_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+	__array(values, struct inner_array_type);
+} outer_map SEC(".maps");
+
+int pid = 0;
+__u64 match_value = 0x13572468;
+bool done = false;
+bool pid_match = false;
+bool outer_map_match = false;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int add_to_list_in_inner_array(void *ctx)
+{
+	__u32 curr_pid, zero = 0;
+	struct bpf_map *map;
+	__u64 *value;
+
+	curr_pid = (u32)bpf_get_current_pid_tgid();
+	if (done || curr_pid != pid)
+		return 0;
+
+	pid_match = true;
+	map = bpf_map_lookup_elem(&outer_map, &curr_pid);
+	if (!map)
+		return 0;
+
+	outer_map_match = true;
+	value = bpf_map_lookup_elem(map, &zero);
+	if (!value)
+		return 0;
+
+	*value = match_value;
+	done = true;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/modify_return.c b/tools/testing/selftests/bpf/progs/modify_return.c
new file mode 100644
index 000000000000..3376d4849f58
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/modify_return.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020 Google LLC.
+ */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+static int sequence = 0;
+__s32 input_retval = 0;
+
+__u64 fentry_result = 0;
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(fentry_test, int a, __u64 b)
+{
+	sequence++;
+	fentry_result = (sequence == 1);
+	return 0;
+}
+
+__u64 fmod_ret_result = 0;
+SEC("fmod_ret/bpf_modify_return_test")
+int BPF_PROG(fmod_ret_test, int a, int *b, int ret)
+{
+	sequence++;
+	/* This is the first fmod_ret program, the ret passed should be 0 */
+	fmod_ret_result = (sequence == 2 && ret == 0);
+	return input_retval;
+}
+
+__u64 fexit_result = 0;
+SEC("fexit/bpf_modify_return_test")
+int BPF_PROG(fexit_test, int a, __u64 b, int ret)
+{
+	sequence++;
+	/* If the input_reval is non-zero a successful modification should have
+	 * occurred.
+	 */
+	if (input_retval)
+		fexit_result = (sequence == 3 && ret == input_retval);
+	else
+		fexit_result = (sequence == 3 && ret == 4);
+
+	return 0;
+}
+
+static int sequence2;
+
+__u64 fentry_result2 = 0;
+SEC("fentry/bpf_modify_return_test2")
+int BPF_PROG(fentry_test2, int a, int *b, short c, int d, void *e, char f,
+	     int g)
+{
+	sequence2++;
+	fentry_result2 = (sequence2 == 1);
+	return 0;
+}
+
+__u64 fmod_ret_result2 = 0;
+SEC("fmod_ret/bpf_modify_return_test2")
+int BPF_PROG(fmod_ret_test2, int a, int *b, short c, int d, void *e, char f,
+	     int g, int ret)
+{
+	sequence2++;
+	/* This is the first fmod_ret program, the ret passed should be 0 */
+	fmod_ret_result2 = (sequence2 == 2 && ret == 0);
+	return input_retval;
+}
+
+__u64 fexit_result2 = 0;
+SEC("fexit/bpf_modify_return_test2")
+int BPF_PROG(fexit_test2, int a, int *b, short c, int d, void *e, char f,
+	     int g, int ret)
+{
+	sequence2++;
+	/* If the input_reval is non-zero a successful modification should have
+	 * occurred.
+	 */
+	if (input_retval)
+		fexit_result2 = (sequence2 == 3 && ret == input_retval);
+	else
+		fexit_result2 = (sequence2 == 3 && ret == 29);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf.h b/tools/testing/selftests/bpf/progs/mptcp_bpf.h
new file mode 100644
index 000000000000..3b188ccdcc40
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mptcp_bpf.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#ifndef __MPTCP_BPF_H__
+#define __MPTCP_BPF_H__
+
+#include "bpf_experimental.h"
+
+/* list helpers from include/linux/list.h */
+static inline int list_is_head(const struct list_head *list,
+			       const struct list_head *head)
+{
+	return list == head;
+}
+
+#define list_entry(ptr, type, member)					\
+	container_of(ptr, type, member)
+
+#define list_first_entry(ptr, type, member)				\
+	list_entry((ptr)->next, type, member)
+
+#define list_next_entry(pos, member)					\
+	list_entry((pos)->member.next, typeof(*(pos)), member)
+
+#define list_entry_is_head(pos, head, member)				\
+	list_is_head(&pos->member, (head))
+
+/* small difference: 'can_loop' has been added in the conditions */
+#define list_for_each_entry(pos, head, member)				\
+	for (pos = list_first_entry(head, typeof(*pos), member);	\
+	     !list_entry_is_head(pos, head, member) && can_loop;	\
+	     pos = list_next_entry(pos, member))
+
+/* mptcp helpers from protocol.h */
+#define mptcp_for_each_subflow(__msk, __subflow)			\
+	list_for_each_entry(__subflow, &((__msk)->conn_list), node)
+
+static __always_inline struct sock *
+mptcp_subflow_tcp_sock(const struct mptcp_subflow_context *subflow)
+{
+	return subflow->tcp_sock;
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/mptcp_sock.c b/tools/testing/selftests/bpf/progs/mptcp_sock.c
new file mode 100644
index 000000000000..f3acb90588c7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mptcp_sock.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Tessares SA. */
+/* Copyright (c) 2022, SUSE. */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+__u32 token = 0;
+
+struct mptcp_storage {
+	__u32 invoked;
+	__u32 is_mptcp;
+	struct sock *sk;
+	__u32 token;
+	struct sock *first;
+	char ca_name[TCP_CA_NAME_MAX];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct mptcp_storage);
+} socket_storage_map SEC(".maps");
+
+SEC("sockops")
+int _sockops(struct bpf_sock_ops *ctx)
+{
+	struct mptcp_storage *storage;
+	struct mptcp_sock *msk;
+	int op = (int)ctx->op;
+	struct tcp_sock *tsk;
+	struct bpf_sock *sk;
+	bool is_mptcp;
+
+	if (op != BPF_SOCK_OPS_TCP_CONNECT_CB)
+		return 1;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	tsk = bpf_skc_to_tcp_sock(sk);
+	if (!tsk)
+		return 1;
+
+	is_mptcp = bpf_core_field_exists(tsk->is_mptcp) ? tsk->is_mptcp : 0;
+	if (!is_mptcp) {
+		storage = bpf_sk_storage_get(&socket_storage_map, sk, 0,
+					     BPF_SK_STORAGE_GET_F_CREATE);
+		if (!storage)
+			return 1;
+
+		storage->token = 0;
+		__builtin_memset(storage->ca_name, 0, TCP_CA_NAME_MAX);
+		storage->first = NULL;
+	} else {
+		msk = bpf_skc_to_mptcp_sock(sk);
+		if (!msk)
+			return 1;
+
+		storage = bpf_sk_storage_get(&socket_storage_map, msk, 0,
+					     BPF_SK_STORAGE_GET_F_CREATE);
+		if (!storage)
+			return 1;
+
+		storage->token = msk->token;
+		__builtin_memcpy(storage->ca_name, msk->ca_name, TCP_CA_NAME_MAX);
+		storage->first = msk->first;
+	}
+	storage->invoked++;
+	storage->is_mptcp = is_mptcp;
+	storage->sk = (struct sock *)sk;
+
+	return 1;
+}
+
+SEC("fentry/mptcp_pm_new_connection")
+int BPF_PROG(trace_mptcp_pm_new_connection, struct mptcp_sock *msk,
+	     const struct sock *ssk, int server_side)
+{
+	if (!server_side)
+		token = msk->token;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/mptcp_sockmap.c b/tools/testing/selftests/bpf/progs/mptcp_sockmap.c
new file mode 100644
index 000000000000..d4eef0cbadb9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mptcp_sockmap.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bpf_tracing_net.h"
+
+char _license[] SEC("license") = "GPL";
+
+int sk_index;
+int redirect_idx;
+int trace_port;
+int helper_ret;
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+	__uint(max_entries, 100);
+} sock_map SEC(".maps");
+
+SEC("sockops")
+int mptcp_sockmap_inject(struct bpf_sock_ops *skops)
+{
+	struct bpf_sock *sk;
+
+	/* only accept specified connection */
+	if (skops->local_port != trace_port ||
+	    skops->op != BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB)
+		return 1;
+
+	sk = skops->sk;
+	if (!sk)
+		return 1;
+
+	/* update sk handler */
+	helper_ret = bpf_sock_map_update(skops, &sock_map, &sk_index, BPF_NOEXIST);
+
+	return 1;
+}
+
+SEC("sk_skb/stream_verdict")
+int mptcp_sockmap_redirect(struct __sk_buff *skb)
+{
+	/* redirect skb to the sk under sock_map[redirect_idx] */
+	return bpf_sk_redirect_map(skb, &sock_map, redirect_idx, 0);
+}
diff --git a/tools/testing/selftests/bpf/progs/mptcp_subflow.c b/tools/testing/selftests/bpf/progs/mptcp_subflow.c
new file mode 100644
index 000000000000..41389e579578
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mptcp_subflow.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Tessares SA. */
+/* Copyright (c) 2024, Kylin Software */
+
+/* vmlinux.h, bpf_helpers.h and other 'define' */
+#include "bpf_tracing_net.h"
+#include "mptcp_bpf.h"
+
+char _license[] SEC("license") = "GPL";
+
+char cc[TCP_CA_NAME_MAX] = "reno";
+int pid;
+
+/* Associate a subflow counter to each token */
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+	__uint(max_entries, 100);
+} mptcp_sf SEC(".maps");
+
+SEC("sockops")
+int mptcp_subflow(struct bpf_sock_ops *skops)
+{
+	__u32 init = 1, key, mark, *cnt;
+	struct mptcp_sock *msk;
+	struct bpf_sock *sk;
+	int err;
+
+	if (skops->op != BPF_SOCK_OPS_TCP_CONNECT_CB)
+		return 1;
+
+	sk = skops->sk;
+	if (!sk)
+		return 1;
+
+	msk = bpf_skc_to_mptcp_sock(sk);
+	if (!msk)
+		return 1;
+
+	key = msk->token;
+	cnt = bpf_map_lookup_elem(&mptcp_sf, &key);
+	if (cnt) {
+		/* A new subflow is added to an existing MPTCP connection */
+		__sync_fetch_and_add(cnt, 1);
+		mark = *cnt;
+	} else {
+		/* A new MPTCP connection is just initiated and this is its primary subflow */
+		bpf_map_update_elem(&mptcp_sf, &key, &init, BPF_ANY);
+		mark = init;
+	}
+
+	/* Set the mark of the subflow's socket based on appearance order */
+	err = bpf_setsockopt(skops, SOL_SOCKET, SO_MARK, &mark, sizeof(mark));
+	if (err < 0)
+		return 1;
+	if (mark == 2)
+		err = bpf_setsockopt(skops, SOL_TCP, TCP_CONGESTION, cc, TCP_CA_NAME_MAX);
+
+	return 1;
+}
+
+static int _check_getsockopt_subflow_mark(struct mptcp_sock *msk, struct bpf_sockopt *ctx)
+{
+	struct mptcp_subflow_context *subflow;
+	int i = 0;
+
+	mptcp_for_each_subflow(msk, subflow) {
+		struct sock *ssk;
+
+		ssk = mptcp_subflow_tcp_sock(bpf_core_cast(subflow,
+							   struct mptcp_subflow_context));
+
+		if (ssk->sk_mark != ++i) {
+			ctx->retval = -2;
+			break;
+		}
+	}
+
+	return 1;
+}
+
+static int _check_getsockopt_subflow_cc(struct mptcp_sock *msk, struct bpf_sockopt *ctx)
+{
+	struct mptcp_subflow_context *subflow;
+
+	mptcp_for_each_subflow(msk, subflow) {
+		struct inet_connection_sock *icsk;
+		struct sock *ssk;
+
+		ssk = mptcp_subflow_tcp_sock(bpf_core_cast(subflow,
+							   struct mptcp_subflow_context));
+		icsk = bpf_core_cast(ssk, struct inet_connection_sock);
+
+		if (ssk->sk_mark == 2 &&
+		    __builtin_memcmp(icsk->icsk_ca_ops->name, cc, TCP_CA_NAME_MAX)) {
+			ctx->retval = -2;
+			break;
+		}
+	}
+
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int _getsockopt_subflow(struct bpf_sockopt *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	struct mptcp_sock *msk;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	if (!sk || sk->protocol != IPPROTO_MPTCP ||
+	    (!(ctx->level == SOL_SOCKET && ctx->optname == SO_MARK) &&
+	     !(ctx->level == SOL_TCP && ctx->optname == TCP_CONGESTION)))
+		return 1;
+
+	msk = bpf_core_cast(sk, struct mptcp_sock);
+	if (msk->pm.extra_subflows != 1) {
+		ctx->retval = -1;
+		return 1;
+	}
+
+	if (ctx->optname == SO_MARK)
+		return _check_getsockopt_subflow_mark(msk, ctx);
+	return _check_getsockopt_subflow_cc(msk, ctx);
+}
diff --git a/tools/testing/selftests/bpf/progs/mptcpify.c b/tools/testing/selftests/bpf/progs/mptcpify.c
new file mode 100644
index 000000000000..cbdc730c3a47
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mptcpify.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023, SUSE. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+#include "bpf_tracing_net.h"
+
+char _license[] SEC("license") = "GPL";
+int pid;
+
+SEC("fmod_ret/update_socket_protocol")
+int BPF_PROG(mptcpify, int family, int type, int protocol)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return protocol;
+
+	if ((family == AF_INET || family == AF_INET6) &&
+	    type == SOCK_STREAM &&
+	    (!protocol || protocol == IPPROTO_TCP)) {
+		return IPPROTO_MPTCP;
+	}
+
+	return protocol;
+}
diff --git a/tools/testing/selftests/bpf/progs/nested_acquire.c b/tools/testing/selftests/bpf/progs/nested_acquire.c
new file mode 100644
index 000000000000..49ad7b9adf56
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/nested_acquire.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("tp_btf/tcp_probe")
+__success
+int BPF_PROG(test_nested_acquire_nonzero, struct sock *sk, struct sk_buff *skb)
+{
+	struct sk_buff *ptr;
+
+	ptr = bpf_kfunc_nested_acquire_nonzero_offset_test(&sk->sk_write_queue);
+
+	bpf_kfunc_nested_release_test(ptr);
+	return 0;
+}
+
+SEC("tp_btf/tcp_probe")
+__success
+int BPF_PROG(test_nested_acquire_zero, struct sock *sk, struct sk_buff *skb)
+{
+	struct sk_buff *ptr;
+
+	ptr = bpf_kfunc_nested_acquire_zero_offset_test(&sk->__sk_common);
+
+	bpf_kfunc_nested_release_test(ptr);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/nested_trust_common.h b/tools/testing/selftests/bpf/progs/nested_trust_common.h
new file mode 100644
index 000000000000..1784b496be2e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/nested_trust_common.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _NESTED_TRUST_COMMON_H
+#define _NESTED_TRUST_COMMON_H
+
+#include <stdbool.h>
+
+bool bpf_cpumask_test_cpu(unsigned int cpu, const struct cpumask *cpumask) __ksym;
+__u32 bpf_cpumask_first_zero(const struct cpumask *cpumask) __ksym;
+
+#endif /* _NESTED_TRUST_COMMON_H */
diff --git a/tools/testing/selftests/bpf/progs/nested_trust_failure.c b/tools/testing/selftests/bpf/progs/nested_trust_failure.c
new file mode 100644
index 000000000000..3568ec450100
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/nested_trust_failure.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#include "nested_trust_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, u64);
+} sk_storage_map SEC(".maps");
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(task_newtask,
+ *         TP_PROTO(struct task_struct *p, u64 clone_flags)
+ */
+
+SEC("tp_btf/task_newtask")
+__failure __msg("R2 must be")
+int BPF_PROG(test_invalid_nested_user_cpus, struct task_struct *task, u64 clone_flags)
+{
+	bpf_cpumask_test_cpu(0, task->user_cpus_ptr);
+	return 0;
+}
+
+/* Although R2 is of type sk_buff but sock_common is expected, we will hit untrusted ptr first. */
+SEC("tp_btf/tcp_probe")
+__failure __msg("R2 type=untrusted_ptr_ expected=ptr_, trusted_ptr_, rcu_ptr_")
+int BPF_PROG(test_invalid_skb_field, struct sock *sk, struct sk_buff *skb)
+{
+	bpf_sk_storage_get(&sk_storage_map, skb->next, 0, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/nested_trust_success.c b/tools/testing/selftests/bpf/progs/nested_trust_success.c
new file mode 100644
index 000000000000..2b66953ca82e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/nested_trust_success.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#include "nested_trust_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, u64);
+} sk_storage_map SEC(".maps");
+
+SEC("tp_btf/task_newtask")
+__success
+int BPF_PROG(test_read_cpumask, struct task_struct *task, u64 clone_flags)
+{
+	bpf_cpumask_test_cpu(0, task->cpus_ptr);
+	return 0;
+}
+
+SEC("tp_btf/tcp_probe")
+__success
+int BPF_PROG(test_skb_field, struct sock *sk, struct sk_buff *skb)
+{
+	bpf_sk_storage_get(&sk_storage_map, skb->sk, 0, 0);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__success
+int BPF_PROG(test_nested_offset, struct task_struct *task, u64 clone_flags)
+{
+	bpf_cpumask_first_zero(&task->cpus_mask);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/net_timestamping.c b/tools/testing/selftests/bpf/progs/net_timestamping.c
new file mode 100644
index 000000000000..b4c2f0f2be11
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/net_timestamping.c
@@ -0,0 +1,248 @@
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+#include <errno.h>
+
+__u32 monitored_pid = 0;
+
+int nr_active;
+int nr_snd;
+int nr_passive;
+int nr_sched;
+int nr_txsw;
+int nr_ack;
+
+struct sk_stg {
+	__u64 sendmsg_ns;	/* record ts when sendmsg is called */
+};
+
+struct sk_tskey {
+	u64 cookie;
+	u32 tskey;
+};
+
+struct delay_info {
+	u64 sendmsg_ns;		/* record ts when sendmsg is called */
+	u32 sched_delay;	/* SCHED_CB - sendmsg_ns */
+	u32 snd_sw_delay;	/* SND_SW_CB - SCHED_CB */
+	u32 ack_delay;		/* ACK_CB - SND_SW_CB */
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct sk_stg);
+} sk_stg_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, struct sk_tskey);
+	__type(value, struct delay_info);
+	__uint(max_entries, 1024);
+} time_map SEC(".maps");
+
+static u64 delay_tolerance_nsec = 10000000000; /* 10 second as an example */
+
+extern int bpf_sock_ops_enable_tx_tstamp(struct bpf_sock_ops_kern *skops, u64 flags) __ksym;
+
+static int bpf_test_sockopt(void *ctx, const struct sock *sk, int expected)
+{
+	int tmp, new = SK_BPF_CB_TX_TIMESTAMPING;
+	int opt = SK_BPF_CB_FLAGS;
+	int level = SOL_SOCKET;
+
+	if (bpf_setsockopt(ctx, level, opt, &new, sizeof(new)) != expected)
+		return 1;
+
+	if (bpf_getsockopt(ctx, level, opt, &tmp, sizeof(tmp)) != expected ||
+	    (!expected && tmp != new))
+		return 1;
+
+	return 0;
+}
+
+static bool bpf_test_access_sockopt(void *ctx, const struct sock *sk)
+{
+	if (bpf_test_sockopt(ctx, sk, -EOPNOTSUPP))
+		return true;
+	return false;
+}
+
+static bool bpf_test_access_load_hdr_opt(struct bpf_sock_ops *skops)
+{
+	u8 opt[3] = {0};
+	int load_flags = 0;
+	int ret;
+
+	ret = bpf_load_hdr_opt(skops, opt, sizeof(opt), load_flags);
+	if (ret != -EOPNOTSUPP)
+		return true;
+
+	return false;
+}
+
+static bool bpf_test_access_cb_flags_set(struct bpf_sock_ops *skops)
+{
+	int ret;
+
+	ret = bpf_sock_ops_cb_flags_set(skops, 0);
+	if (ret != -EOPNOTSUPP)
+		return true;
+
+	return false;
+}
+
+/* In the timestamping callbacks, we're not allowed to call the following
+ * BPF CALLs for the safety concern. Return false if expected.
+ */
+static bool bpf_test_access_bpf_calls(struct bpf_sock_ops *skops,
+				      const struct sock *sk)
+{
+	if (bpf_test_access_sockopt(skops, sk))
+		return true;
+
+	if (bpf_test_access_load_hdr_opt(skops))
+		return true;
+
+	if (bpf_test_access_cb_flags_set(skops))
+		return true;
+
+	return false;
+}
+
+static bool bpf_test_delay(struct bpf_sock_ops *skops, const struct sock *sk)
+{
+	struct bpf_sock_ops_kern *skops_kern;
+	u64 timestamp = bpf_ktime_get_ns();
+	struct skb_shared_info *shinfo;
+	struct delay_info dinfo = {0};
+	struct sk_tskey key = {0};
+	struct delay_info *val;
+	struct sk_buff *skb;
+	struct sk_stg *stg;
+	u64 prior_ts, delay;
+
+	if (bpf_test_access_bpf_calls(skops, sk))
+		return false;
+
+	skops_kern = bpf_cast_to_kern_ctx(skops);
+	skb = skops_kern->skb;
+	shinfo = bpf_core_cast(skb->head + skb->end, struct skb_shared_info);
+
+	key.cookie = bpf_get_socket_cookie(skops);
+	if (!key.cookie)
+		return false;
+
+	if (skops->op == BPF_SOCK_OPS_TSTAMP_SENDMSG_CB) {
+		stg = bpf_sk_storage_get(&sk_stg_map, (void *)sk, 0, 0);
+		if (!stg)
+			return false;
+		dinfo.sendmsg_ns = stg->sendmsg_ns;
+		bpf_sock_ops_enable_tx_tstamp(skops_kern, 0);
+		key.tskey = shinfo->tskey;
+		if (!key.tskey)
+			return false;
+		bpf_map_update_elem(&time_map, &key, &dinfo, BPF_ANY);
+		return true;
+	}
+
+	key.tskey = shinfo->tskey;
+	if (!key.tskey)
+		return false;
+
+	val = bpf_map_lookup_elem(&time_map, &key);
+	if (!val)
+		return false;
+
+	switch (skops->op) {
+	case BPF_SOCK_OPS_TSTAMP_SCHED_CB:
+		val->sched_delay = timestamp - val->sendmsg_ns;
+		delay = val->sched_delay;
+		break;
+	case BPF_SOCK_OPS_TSTAMP_SND_SW_CB:
+		prior_ts = val->sched_delay + val->sendmsg_ns;
+		val->snd_sw_delay = timestamp - prior_ts;
+		delay = val->snd_sw_delay;
+		break;
+	case BPF_SOCK_OPS_TSTAMP_ACK_CB:
+		prior_ts = val->snd_sw_delay + val->sched_delay + val->sendmsg_ns;
+		val->ack_delay = timestamp - prior_ts;
+		delay = val->ack_delay;
+		break;
+	}
+
+	if (delay >= delay_tolerance_nsec)
+		return false;
+
+	/* Since it's the last one, remove from the map after latency check */
+	if (skops->op == BPF_SOCK_OPS_TSTAMP_ACK_CB)
+		bpf_map_delete_elem(&time_map, &key);
+
+	return true;
+}
+
+SEC("fentry/tcp_sendmsg_locked")
+int BPF_PROG(trace_tcp_sendmsg_locked, struct sock *sk, struct msghdr *msg,
+	     size_t size)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+	u64 timestamp = bpf_ktime_get_ns();
+	u32 flag = sk->sk_bpf_cb_flags;
+	struct sk_stg *stg;
+
+	if (pid != monitored_pid || !flag)
+		return 0;
+
+	stg = bpf_sk_storage_get(&sk_stg_map, sk, 0,
+				 BPF_SK_STORAGE_GET_F_CREATE);
+	if (!stg)
+		return 0;
+
+	stg->sendmsg_ns = timestamp;
+	nr_snd += 1;
+	return 0;
+}
+
+SEC("sockops")
+int skops_sockopt(struct bpf_sock_ops *skops)
+{
+	struct bpf_sock *bpf_sk = skops->sk;
+	const struct sock *sk;
+
+	if (!bpf_sk)
+		return 1;
+
+	sk = (struct sock *)bpf_skc_to_tcp_sock(bpf_sk);
+	if (!sk)
+		return 1;
+
+	switch (skops->op) {
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		nr_active += !bpf_test_sockopt(skops, sk, 0);
+		break;
+	case BPF_SOCK_OPS_TSTAMP_SENDMSG_CB:
+		if (bpf_test_delay(skops, sk))
+			nr_snd += 1;
+		break;
+	case BPF_SOCK_OPS_TSTAMP_SCHED_CB:
+		if (bpf_test_delay(skops, sk))
+			nr_sched += 1;
+		break;
+	case BPF_SOCK_OPS_TSTAMP_SND_SW_CB:
+		if (bpf_test_delay(skops, sk))
+			nr_txsw += 1;
+		break;
+	case BPF_SOCK_OPS_TSTAMP_ACK_CB:
+		if (bpf_test_delay(skops, sk))
+			nr_ack += 1;
+		break;
+	}
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/netcnt_prog.c b/tools/testing/selftests/bpf/progs/netcnt_prog.c
new file mode 100644
index 000000000000..f9ef8aee56f1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/netcnt_prog.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <linux/version.h>
+
+#include <bpf/bpf_helpers.h>
+#include "netcnt_common.h"
+
+#define MAX_BPS	(3 * 1024 * 1024)
+
+#define REFRESH_TIME_NS	100000000
+#define NS_PER_SEC	1000000000
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, union percpu_net_cnt);
+} percpu_netcnt SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, union net_cnt);
+} netcnt SEC(".maps");
+
+SEC("cgroup/skb")
+int bpf_nextcnt(struct __sk_buff *skb)
+{
+	union percpu_net_cnt *percpu_cnt;
+	union net_cnt *cnt;
+	__u64 ts, dt;
+	int ret;
+
+	cnt = bpf_get_local_storage(&netcnt, 0);
+	percpu_cnt = bpf_get_local_storage(&percpu_netcnt, 0);
+
+	percpu_cnt->packets++;
+	percpu_cnt->bytes += skb->len;
+
+	if (percpu_cnt->packets > MAX_PERCPU_PACKETS) {
+		__sync_fetch_and_add(&cnt->packets,
+				     percpu_cnt->packets);
+		percpu_cnt->packets = 0;
+
+		__sync_fetch_and_add(&cnt->bytes,
+				     percpu_cnt->bytes);
+		percpu_cnt->bytes = 0;
+	}
+
+	ts = bpf_ktime_get_ns();
+	dt = ts - percpu_cnt->prev_ts;
+
+	dt *= MAX_BPS;
+	dt /= NS_PER_SEC;
+
+	if (cnt->bytes + percpu_cnt->bytes - percpu_cnt->prev_bytes < dt)
+		ret = 1;
+	else
+		ret = 0;
+
+	if (dt > REFRESH_TIME_NS) {
+		percpu_cnt->prev_ts = ts;
+		percpu_cnt->prev_packets = cnt->packets;
+		percpu_cnt->prev_bytes = cnt->bytes;
+	}
+
+	return !!ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/netif_receive_skb.c b/tools/testing/selftests/bpf/progs/netif_receive_skb.c
new file mode 100644
index 000000000000..9e067dcbf607
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/netif_receive_skb.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020, Oracle and/or its affiliates. */
+
+#include "btf_ptr.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+#include <errno.h>
+
+long ret = 0;
+int num_subtests = 0;
+int ran_subtests = 0;
+bool skip = false;
+
+#define STRSIZE			2048
+#define EXPECTED_STRSIZE	256
+
+#if defined(bpf_target_s390)
+/* NULL points to a readable struct lowcore on s390, so take the last page */
+#define BADPTR			((void *)0xFFFFFFFFFFFFF000ULL)
+#else
+#define BADPTR			0
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, char[STRSIZE]);
+} strdata SEC(".maps");
+
+static int __strncmp(const void *m1, const void *m2, size_t len)
+{
+	const unsigned char *s1 = m1;
+	const unsigned char *s2 = m2;
+	int i, delta = 0;
+
+	for (i = 0; i < len; i++) {
+		delta = s1[i] - s2[i];
+		if (delta || s1[i] == 0 || s2[i] == 0)
+			break;
+	}
+	return delta;
+}
+
+#if __has_builtin(__builtin_btf_type_id)
+#define	TEST_BTF(_str, _type, _flags, _expected, ...)			\
+	do {								\
+		static const char _expectedval[EXPECTED_STRSIZE] =	\
+							_expected;	\
+		__u64 _hflags = _flags | BTF_F_COMPACT;			\
+		static _type _ptrdata = __VA_ARGS__;			\
+		static struct btf_ptr _ptr = { };			\
+		int _cmp;						\
+									\
+		++num_subtests;						\
+		if (ret < 0)						\
+			break;						\
+		++ran_subtests;						\
+		_ptr.ptr = &_ptrdata;					\
+		_ptr.type_id = bpf_core_type_id_kernel(_type);		\
+		if (_ptr.type_id <= 0) {				\
+			ret = -EINVAL;					\
+			break;						\
+		}							\
+		ret = bpf_snprintf_btf(_str, STRSIZE,			\
+				       &_ptr, sizeof(_ptr), _hflags);	\
+		if (ret)						\
+			break;						\
+		_cmp = __strncmp(_str, _expectedval, EXPECTED_STRSIZE);	\
+		if (_cmp != 0) {					\
+			bpf_printk("(%d) got %s", _cmp, _str);		\
+			bpf_printk("(%d) expected %s", _cmp,		\
+				   _expectedval);			\
+			ret = -EBADMSG;					\
+			break;						\
+		}							\
+	} while (0)
+#endif
+
+/* Use where expected data string matches its stringified declaration */
+#define TEST_BTF_C(_str, _type, _flags, ...)				\
+	TEST_BTF(_str, _type, _flags, "(" #_type ")" #__VA_ARGS__,	\
+		 __VA_ARGS__)
+
+/* TRACE_EVENT(netif_receive_skb,
+ *	TP_PROTO(struct sk_buff *skb),
+ */
+SEC("tp_btf/netif_receive_skb")
+int BPF_PROG(trace_netif_receive_skb, struct sk_buff *skb)
+{
+	static __u64 flags[] = { 0, BTF_F_COMPACT, BTF_F_ZERO, BTF_F_PTR_RAW,
+				 BTF_F_NONAME, BTF_F_COMPACT | BTF_F_ZERO |
+				 BTF_F_PTR_RAW | BTF_F_NONAME };
+	static struct btf_ptr p = { };
+	__u32 key = 0;
+	int i, __ret;
+	char *str;
+
+#if __has_builtin(__builtin_btf_type_id)
+	str = bpf_map_lookup_elem(&strdata, &key);
+	if (!str)
+		return 0;
+
+	/* Ensure we can write skb string representation */
+	p.type_id = bpf_core_type_id_kernel(struct sk_buff);
+	p.ptr = skb;
+	for (i = 0; i < ARRAY_SIZE(flags); i++) {
+		++num_subtests;
+		ret = bpf_snprintf_btf(str, STRSIZE, &p, sizeof(p), 0);
+		if (ret < 0)
+			bpf_printk("returned %d when writing skb", ret);
+		++ran_subtests;
+	}
+
+	/* Check invalid ptr value */
+	p.ptr = BADPTR;
+	__ret = bpf_snprintf_btf(str, STRSIZE, &p, sizeof(p), 0);
+	if (__ret >= 0) {
+		bpf_printk("printing %llx should generate error, got (%d)",
+			   (unsigned long long)BADPTR, __ret);
+		ret = -ERANGE;
+	}
+
+	/* Verify type display for various types. */
+
+	/* simple int */
+	TEST_BTF_C(str, int, 0, 1234);
+	TEST_BTF(str, int, BTF_F_NONAME, "1234", 1234);
+	/* zero value should be printed at toplevel */
+	TEST_BTF(str, int, 0, "(int)0", 0);
+	TEST_BTF(str, int, BTF_F_NONAME, "0", 0);
+	TEST_BTF(str, int, BTF_F_ZERO, "(int)0", 0);
+	TEST_BTF(str, int, BTF_F_NONAME | BTF_F_ZERO, "0", 0);
+	TEST_BTF_C(str, int, 0, -4567);
+	TEST_BTF(str, int, BTF_F_NONAME, "-4567", -4567);
+
+	/* simple char */
+	TEST_BTF_C(str, char, 0, 100);
+	TEST_BTF(str, char, BTF_F_NONAME, "100", 100);
+	/* zero value should be printed at toplevel */
+	TEST_BTF(str, char, 0, "(char)0", 0);
+	TEST_BTF(str, char, BTF_F_NONAME, "0", 0);
+	TEST_BTF(str, char, BTF_F_ZERO, "(char)0", 0);
+	TEST_BTF(str, char, BTF_F_NONAME | BTF_F_ZERO, "0", 0);
+
+	/* simple typedef */
+	TEST_BTF_C(str, uint64_t, 0, 100);
+	TEST_BTF(str, u64, BTF_F_NONAME, "1", 1);
+	/* zero value should be printed at toplevel */
+	TEST_BTF(str, u64, 0, "(u64)0", 0);
+	TEST_BTF(str, u64, BTF_F_NONAME, "0", 0);
+	TEST_BTF(str, u64, BTF_F_ZERO, "(u64)0", 0);
+	TEST_BTF(str, u64, BTF_F_NONAME|BTF_F_ZERO, "0", 0);
+
+	/* typedef struct */
+	TEST_BTF_C(str, atomic_t, 0, {.counter = (int)1,});
+	TEST_BTF(str, atomic_t, BTF_F_NONAME, "{1,}", {.counter = 1,});
+	/* typedef with 0 value should be printed at toplevel */
+	TEST_BTF(str, atomic_t, 0, "(atomic_t){}", {.counter = 0,});
+	TEST_BTF(str, atomic_t, BTF_F_NONAME, "{}", {.counter = 0,});
+	TEST_BTF(str, atomic_t, BTF_F_ZERO, "(atomic_t){.counter = (int)0,}",
+		 {.counter = 0,});
+	TEST_BTF(str, atomic_t, BTF_F_NONAME|BTF_F_ZERO,
+		 "{0,}", {.counter = 0,});
+
+	/* enum where enum value does (and does not) exist */
+	TEST_BTF_C(str, enum bpf_cmd, 0, BPF_MAP_CREATE);
+	TEST_BTF(str, enum bpf_cmd, 0, "(enum bpf_cmd)BPF_MAP_CREATE", 0);
+	TEST_BTF(str, enum bpf_cmd, BTF_F_NONAME, "BPF_MAP_CREATE",
+		 BPF_MAP_CREATE);
+	TEST_BTF(str, enum bpf_cmd, BTF_F_NONAME|BTF_F_ZERO,
+		 "BPF_MAP_CREATE", 0);
+
+	TEST_BTF(str, enum bpf_cmd, BTF_F_ZERO, "(enum bpf_cmd)BPF_MAP_CREATE",
+		 BPF_MAP_CREATE);
+	TEST_BTF(str, enum bpf_cmd, BTF_F_NONAME|BTF_F_ZERO,
+		 "BPF_MAP_CREATE", BPF_MAP_CREATE);
+	TEST_BTF_C(str, enum bpf_cmd, 0, 2000);
+	TEST_BTF(str, enum bpf_cmd, BTF_F_NONAME, "2000", 2000);
+
+	/* simple struct */
+	TEST_BTF_C(str, struct btf_enum, 0,
+		   {.name_off = (__u32)3,.val = (__s32)-1,});
+	TEST_BTF(str, struct btf_enum, BTF_F_NONAME, "{3,-1,}",
+		 { .name_off = 3, .val = -1,});
+	TEST_BTF(str, struct btf_enum, BTF_F_NONAME, "{-1,}",
+		 { .name_off = 0, .val = -1,});
+	TEST_BTF(str, struct btf_enum, BTF_F_NONAME|BTF_F_ZERO, "{0,-1,}",
+		 { .name_off = 0, .val = -1,});
+	/* empty struct should be printed */
+	TEST_BTF(str, struct btf_enum, 0, "(struct btf_enum){}",
+		 { .name_off = 0, .val = 0,});
+	TEST_BTF(str, struct btf_enum, BTF_F_NONAME, "{}",
+		 { .name_off = 0, .val = 0,});
+	TEST_BTF(str, struct btf_enum, BTF_F_ZERO,
+		 "(struct btf_enum){.name_off = (__u32)0,.val = (__s32)0,}",
+		 { .name_off = 0, .val = 0,});
+
+	/* struct with pointers */
+	TEST_BTF(str, struct list_head, BTF_F_PTR_RAW,
+		 "(struct list_head){.next = (struct list_head *)0x0000000000000001,}",
+		 { .next = (struct list_head *)1 });
+	/* NULL pointer should not be displayed */
+	TEST_BTF(str, struct list_head, BTF_F_PTR_RAW,
+		 "(struct list_head){}",
+		 { .next = (struct list_head *)0 });
+
+	/* struct with char array */
+	TEST_BTF(str, struct bpf_prog_info, 0,
+		 "(struct bpf_prog_info){.name = (char[])['f','o','o',],}",
+		 { .name = "foo",});
+	TEST_BTF(str, struct bpf_prog_info, BTF_F_NONAME,
+		 "{['f','o','o',],}",
+		 {.name = "foo",});
+	/* leading null char means do not display string */
+	TEST_BTF(str, struct bpf_prog_info, 0,
+		 "(struct bpf_prog_info){}",
+		 {.name = {'\0', 'f', 'o', 'o'}});
+	/* handle non-printable characters */
+	TEST_BTF(str, struct bpf_prog_info, 0,
+		 "(struct bpf_prog_info){.name = (char[])[1,2,3,],}",
+		 { .name = {1, 2, 3, 0}});
+
+	/* struct with non-char array */
+	TEST_BTF(str, struct __sk_buff, 0,
+		 "(struct __sk_buff){.cb = (__u32[])[1,2,3,4,5,],}",
+		 { .cb = {1, 2, 3, 4, 5,},});
+	TEST_BTF(str, struct __sk_buff, BTF_F_NONAME,
+		 "{[1,2,3,4,5,],}",
+		 { .cb = { 1, 2, 3, 4, 5},});
+	/* For non-char, arrays, show non-zero values only */
+	TEST_BTF(str, struct __sk_buff, 0,
+		 "(struct __sk_buff){.cb = (__u32[])[1,],}",
+		 { .cb = { 0, 0, 1, 0, 0},});
+
+	/* struct with bitfields */
+	TEST_BTF_C(str, struct bpf_insn, 0,
+		   {.code = (__u8)1,.dst_reg = (__u8)0x2,.src_reg = (__u8)0x3,.off = (__s16)4,.imm = (__s32)5,});
+	TEST_BTF(str, struct bpf_insn, BTF_F_NONAME, "{1,0x2,0x3,4,5,}",
+		 {.code = 1, .dst_reg = 0x2, .src_reg = 0x3, .off = 4,
+		  .imm = 5,});
+#else
+	skip = true;
+#endif
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/netns_cookie_prog.c b/tools/testing/selftests/bpf/progs/netns_cookie_prog.c
new file mode 100644
index 000000000000..94040714af18
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/netns_cookie_prog.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+#define AF_INET6 10
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sockops_netns_cookies SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_msg_netns_cookies SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_map SEC(".maps");
+
+int tcx_init_netns_cookie, tcx_netns_cookie;
+int cgroup_skb_init_netns_cookie, cgroup_skb_netns_cookie;
+
+SEC("sockops")
+int get_netns_cookie_sockops(struct bpf_sock_ops *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	int *cookie;
+	__u32 key = 0;
+
+	if (ctx->family != AF_INET6)
+		return 1;
+
+	if (!sk)
+		return 1;
+
+	switch (ctx->op) {
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+		cookie = bpf_sk_storage_get(&sockops_netns_cookies, sk, 0,
+					    BPF_SK_STORAGE_GET_F_CREATE);
+		if (!cookie)
+			return 1;
+
+		*cookie = bpf_get_netns_cookie(ctx);
+		break;
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		bpf_sock_map_update(ctx, &sock_map, &key, BPF_NOEXIST);
+		break;
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+SEC("sk_msg")
+int get_netns_cookie_sk_msg(struct sk_msg_md *msg)
+{
+	struct bpf_sock *sk = msg->sk;
+	int *cookie;
+
+	if (msg->family != AF_INET6)
+		return 1;
+
+	if (!sk)
+		return 1;
+
+	cookie = bpf_sk_storage_get(&sk_msg_netns_cookies, sk, 0,
+				    BPF_SK_STORAGE_GET_F_CREATE);
+	if (!cookie)
+		return 1;
+
+	*cookie = bpf_get_netns_cookie(msg);
+
+	return 1;
+}
+
+SEC("tcx/ingress")
+int get_netns_cookie_tcx(struct __sk_buff *skb)
+{
+	tcx_init_netns_cookie = bpf_get_netns_cookie(NULL);
+	tcx_netns_cookie = bpf_get_netns_cookie(skb);
+	return TCX_PASS;
+}
+
+SEC("cgroup_skb/ingress")
+int get_netns_cookie_cgroup_skb(struct __sk_buff *skb)
+{
+	cgroup_skb_init_netns_cookie = bpf_get_netns_cookie(NULL);
+	cgroup_skb_netns_cookie = bpf_get_netns_cookie(skb);
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/normal_map_btf.c b/tools/testing/selftests/bpf/progs/normal_map_btf.c
new file mode 100644
index 000000000000..a45c9299552c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/normal_map_btf.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct node_data {
+	__u64 data;
+	struct bpf_list_node node;
+};
+
+struct map_value {
+	struct bpf_list_head head __contains(node_data, node);
+	struct bpf_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} array SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+bool done = false;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int add_to_list_in_array(void *ctx)
+{
+	struct map_value *value;
+	struct node_data *new;
+	int zero = 0;
+
+	if (done || (int)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	value = bpf_map_lookup_elem(&array, &zero);
+	if (!value)
+		return 0;
+
+	new = bpf_obj_new(typeof(*new));
+	if (!new)
+		return 0;
+
+	bpf_spin_lock(&value->lock);
+	bpf_list_push_back(&value->head, &new->node);
+	bpf_spin_unlock(&value->lock);
+	done = true;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_array.c b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c
new file mode 100644
index 000000000000..37c2d2608ec0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/percpu_alloc_array.c
@@ -0,0 +1,190 @@
+#include "bpf_experimental.h"
+
+struct val_t {
+	long b, c, d;
+};
+
+struct elem {
+	long sum;
+	struct val_t __percpu_kptr *pc;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+const volatile int nr_cpus;
+
+/* Initialize the percpu object */
+SEC("?fentry/bpf_fentry_test1")
+int BPF_PROG(test_array_map_1)
+{
+	struct val_t __percpu_kptr *p;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p = bpf_percpu_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	p = bpf_kptr_xchg(&e->pc, p);
+	if (p)
+		bpf_percpu_obj_drop(p);
+
+	return 0;
+}
+
+/* Update percpu data */
+SEC("?fentry/bpf_fentry_test2")
+int BPF_PROG(test_array_map_2)
+{
+	struct val_t __percpu_kptr *p;
+	struct val_t *v;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p = e->pc;
+	if (!p)
+		return 0;
+
+	v = bpf_per_cpu_ptr(p, 0);
+	if (!v)
+		return 0;
+	v->c = 1;
+	v->d = 2;
+
+	return 0;
+}
+
+int cpu0_field_d, sum_field_c;
+int my_pid;
+
+/* Summarize percpu data */
+SEC("?fentry/bpf_fentry_test3")
+int BPF_PROG(test_array_map_3)
+{
+	struct val_t __percpu_kptr *p;
+	int i, index = 0;
+	struct val_t *v;
+	struct elem *e;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != my_pid)
+		return 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p = e->pc;
+	if (!p)
+		return 0;
+
+	bpf_for(i, 0, nr_cpus) {
+		v = bpf_per_cpu_ptr(p, i);
+		if (v) {
+			if (i == 0)
+				cpu0_field_d = v->d;
+			sum_field_c += v->c;
+		}
+	}
+
+	return 0;
+}
+
+/* Explicitly free allocated percpu data */
+SEC("?fentry/bpf_fentry_test4")
+int BPF_PROG(test_array_map_4)
+{
+	struct val_t __percpu_kptr *p;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	/* delete */
+	p = bpf_kptr_xchg(&e->pc, NULL);
+	if (p) {
+		bpf_percpu_obj_drop(p);
+	}
+
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+int BPF_PROG(test_array_map_10)
+{
+	struct val_t __percpu_kptr *p, *p1;
+	int i, index = 0;
+	struct val_t *v;
+	struct elem *e;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != my_pid)
+		return 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	bpf_rcu_read_lock();
+	p = e->pc;
+	if (!p) {
+		p = bpf_percpu_obj_new(struct val_t);
+		if (!p)
+			goto out;
+
+		p1 = bpf_kptr_xchg(&e->pc, p);
+		if (p1) {
+			/* race condition */
+			bpf_percpu_obj_drop(p1);
+		}
+	}
+
+	v = bpf_this_cpu_ptr(p);
+	v->c = 3;
+	v = bpf_this_cpu_ptr(p);
+	v->c = 0;
+
+	v = bpf_per_cpu_ptr(p, 0);
+	if (!v)
+		goto out;
+	v->c = 1;
+	v->d = 2;
+
+	/* delete */
+	p1 = bpf_kptr_xchg(&e->pc, NULL);
+	if (!p1)
+		goto out;
+
+	bpf_for(i, 0, nr_cpus) {
+		v = bpf_per_cpu_ptr(p, i);
+		if (v) {
+			if (i == 0)
+				cpu0_field_d = v->d;
+			sum_field_c += v->c;
+		}
+	}
+
+	/* finally release p */
+	bpf_percpu_obj_drop(p1);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c b/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c
new file mode 100644
index 000000000000..a2acf9aa6c24
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/percpu_alloc_cgrp_local_storage.c
@@ -0,0 +1,109 @@
+#include "bpf_experimental.h"
+
+struct val_t {
+	long b, c, d;
+};
+
+struct elem {
+	long sum;
+	struct val_t __percpu_kptr *pc;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGRP_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct elem);
+} cgrp SEC(".maps");
+
+const volatile int nr_cpus;
+
+/* Initialize the percpu object */
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test_cgrp_local_storage_1)
+{
+	struct task_struct *task;
+	struct val_t __percpu_kptr *p;
+	struct elem *e;
+
+	task = bpf_get_current_task_btf();
+	e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!e)
+		return 0;
+
+	p = bpf_percpu_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	p = bpf_kptr_xchg(&e->pc, p);
+	if (p)
+		bpf_percpu_obj_drop(p);
+
+	return 0;
+}
+
+/* Percpu data collection */
+SEC("fentry/bpf_fentry_test2")
+int BPF_PROG(test_cgrp_local_storage_2)
+{
+	struct task_struct *task;
+	struct val_t __percpu_kptr *p;
+	struct val_t *v;
+	struct elem *e;
+
+	task = bpf_get_current_task_btf();
+	e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0, 0);
+	if (!e)
+		return 0;
+
+	p = e->pc;
+	if (!p)
+		return 0;
+
+	v = bpf_per_cpu_ptr(p, 0);
+	if (!v)
+		return 0;
+	v->c = 1;
+	v->d = 2;
+	return 0;
+}
+
+int cpu0_field_d, sum_field_c;
+int my_pid;
+
+/* Summarize percpu data collection */
+SEC("fentry/bpf_fentry_test3")
+int BPF_PROG(test_cgrp_local_storage_3)
+{
+	struct task_struct *task;
+	struct val_t __percpu_kptr *p;
+	struct val_t *v;
+	struct elem *e;
+	int i;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != my_pid)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+	e = bpf_cgrp_storage_get(&cgrp, task->cgroups->dfl_cgrp, 0, 0);
+	if (!e)
+		return 0;
+
+	p = e->pc;
+	if (!p)
+		return 0;
+
+	bpf_for(i, 0, nr_cpus) {
+		v = bpf_per_cpu_ptr(p, i);
+		if (v) {
+			if (i == 0)
+				cpu0_field_d = v->d;
+			sum_field_c += v->c;
+		}
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c
new file mode 100644
index 000000000000..f2b8eb2ff76f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/percpu_alloc_fail.c
@@ -0,0 +1,182 @@
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+struct val_t {
+	long b, c, d;
+};
+
+struct val2_t {
+	long b;
+};
+
+struct val_with_ptr_t {
+	char *p;
+};
+
+struct val_with_rb_root_t {
+	struct bpf_spin_lock lock;
+};
+
+struct val_600b_t {
+	char b[600];
+};
+
+struct elem {
+	long sum;
+	struct val_t __percpu_kptr *pc;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+long ret;
+
+SEC("?fentry/bpf_fentry_test1")
+__failure __msg("store to referenced kptr disallowed")
+int BPF_PROG(test_array_map_1)
+{
+	struct val_t __percpu_kptr *p;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p = bpf_percpu_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	p = bpf_kptr_xchg(&e->pc, p);
+	if (p)
+		bpf_percpu_obj_drop(p);
+
+	e->pc = (struct val_t __percpu_kptr *)ret;
+	return 0;
+}
+
+SEC("?fentry/bpf_fentry_test1")
+__failure __msg("invalid kptr access, R2 type=percpu_ptr_val2_t expected=ptr_val_t")
+int BPF_PROG(test_array_map_2)
+{
+	struct val2_t __percpu_kptr *p2;
+	struct val_t __percpu_kptr *p;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p2 = bpf_percpu_obj_new(struct val2_t);
+	if (!p2)
+		return 0;
+
+	p = bpf_kptr_xchg(&e->pc, p2);
+	if (p)
+		bpf_percpu_obj_drop(p);
+
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("R1 type=scalar expected=percpu_ptr_, percpu_rcu_ptr_, percpu_trusted_ptr_")
+int BPF_PROG(test_array_map_3)
+{
+	struct val_t __percpu_kptr *p, *p1;
+	struct val_t *v;
+	struct elem *e;
+	int index = 0;
+
+	e = bpf_map_lookup_elem(&array, &index);
+	if (!e)
+		return 0;
+
+	p = bpf_percpu_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	p1 = bpf_kptr_xchg(&e->pc, p);
+	if (p1)
+		bpf_percpu_obj_drop(p1);
+
+	v = bpf_this_cpu_ptr(p);
+	ret = v->b;
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("arg#0 expected for bpf_percpu_obj_drop_impl()")
+int BPF_PROG(test_array_map_4)
+{
+	struct val_t __percpu_kptr *p;
+
+	p = bpf_percpu_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	bpf_obj_drop(p);
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("arg#0 expected for bpf_obj_drop_impl()")
+int BPF_PROG(test_array_map_5)
+{
+	struct val_t *p;
+
+	p = bpf_obj_new(struct val_t);
+	if (!p)
+		return 0;
+
+	bpf_percpu_obj_drop(p);
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("bpf_percpu_obj_new type ID argument must be of a struct of scalars")
+int BPF_PROG(test_array_map_6)
+{
+	struct val_with_ptr_t __percpu_kptr *p;
+
+	p = bpf_percpu_obj_new(struct val_with_ptr_t);
+	if (!p)
+		return 0;
+
+	bpf_percpu_obj_drop(p);
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("bpf_percpu_obj_new type ID argument must not contain special fields")
+int BPF_PROG(test_array_map_7)
+{
+	struct val_with_rb_root_t __percpu_kptr *p;
+
+	p = bpf_percpu_obj_new(struct val_with_rb_root_t);
+	if (!p)
+		return 0;
+
+	bpf_percpu_obj_drop(p);
+	return 0;
+}
+
+SEC("?fentry.s/bpf_fentry_test1")
+__failure __msg("bpf_percpu_obj_new type size (600) is greater than 512")
+int BPF_PROG(test_array_map_8)
+{
+	struct val_600b_t __percpu_kptr *p;
+
+	p = bpf_percpu_obj_new(struct val_600b_t);
+	if (!p)
+		return 0;
+
+	bpf_percpu_obj_drop(p);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/perf_event_stackmap.c b/tools/testing/selftests/bpf/progs/perf_event_stackmap.c
new file mode 100644
index 000000000000..f793280a3238
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/perf_event_stackmap.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#ifndef PERF_MAX_STACK_DEPTH
+#define PERF_MAX_STACK_DEPTH         127
+#endif
+
+typedef __u64 stack_trace_t[PERF_MAX_STACK_DEPTH];
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackdata_map SEC(".maps");
+
+long stackid_kernel = 1;
+long stackid_user = 1;
+long stack_kernel = 1;
+long stack_user = 1;
+
+SEC("perf_event")
+int oncpu(void *ctx)
+{
+	stack_trace_t *trace;
+	__u32 key = 0;
+	long val;
+
+	val = bpf_get_stackid(ctx, &stackmap, 0);
+	if (val >= 0)
+		stackid_kernel = 2;
+	val = bpf_get_stackid(ctx, &stackmap, BPF_F_USER_STACK);
+	if (val >= 0)
+		stackid_user = 2;
+
+	trace = bpf_map_lookup_elem(&stackdata_map, &key);
+	if (!trace)
+		return 0;
+
+	val = bpf_get_stack(ctx, trace, sizeof(stack_trace_t), 0);
+	if (val > 0)
+		stack_kernel = 2;
+
+	val = bpf_get_stack(ctx, trace, sizeof(stack_trace_t), BPF_F_USER_STACK);
+	if (val > 0)
+		stack_user = 2;
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/perfbuf_bench.c b/tools/testing/selftests/bpf/progs/perfbuf_bench.c
new file mode 100644
index 000000000000..29c1639fc78a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/perfbuf_bench.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(value_size, sizeof(int));
+	__uint(key_size, sizeof(int));
+} perfbuf SEC(".maps");
+
+const volatile int batch_cnt = 0;
+
+long sample_val = 42;
+long dropped __attribute__((aligned(128))) = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int bench_perfbuf(void *ctx)
+{
+	int i;
+
+	for (i = 0; i < batch_cnt; i++) {
+		if (bpf_perf_event_output(ctx, &perfbuf, BPF_F_CURRENT_CPU,
+					  &sample_val, sizeof(sample_val)))
+			__sync_add_and_fetch(&dropped, 1);
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/preempt_lock.c b/tools/testing/selftests/bpf/progs/preempt_lock.c
new file mode 100644
index 000000000000..7d04254e61f1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/preempt_lock.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+extern int bpf_copy_from_user_str(void *dst, u32 dst__sz, const void *unsafe_ptr__ign, u64 flags) __weak __ksym;
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_1(struct __sk_buff *ctx)
+{
+	bpf_preempt_disable();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_2(struct __sk_buff *ctx)
+{
+	bpf_preempt_disable();
+	bpf_preempt_disable();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_3(struct __sk_buff *ctx)
+{
+	bpf_preempt_disable();
+	bpf_preempt_disable();
+	bpf_preempt_disable();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_3_minus_2(struct __sk_buff *ctx)
+{
+	bpf_preempt_disable();
+	bpf_preempt_disable();
+	bpf_preempt_disable();
+	bpf_preempt_enable();
+	bpf_preempt_enable();
+	return 0;
+}
+
+static __noinline void preempt_disable(void)
+{
+	bpf_preempt_disable();
+}
+
+static __noinline void preempt_enable(void)
+{
+	bpf_preempt_enable();
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_1_subprog(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_2_subprog(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	preempt_disable();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_preempt_disable-ed region")
+int preempt_lock_missing_2_minus_1_subprog(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	preempt_disable();
+	preempt_enable();
+	return 0;
+}
+
+static __noinline void preempt_balance_subprog(void)
+{
+	preempt_disable();
+	preempt_enable();
+}
+
+SEC("?tc")
+__success int preempt_balance(struct __sk_buff *ctx)
+{
+	bpf_guard_preempt();
+	return 0;
+}
+
+SEC("?tc")
+__success int preempt_balance_subprog_test(struct __sk_buff *ctx)
+{
+	preempt_balance_subprog();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("sleepable helper bpf_copy_from_user#")
+int preempt_sleepable_helper(void *ctx)
+{
+	u32 data;
+
+	bpf_preempt_disable();
+	bpf_copy_from_user(&data, sizeof(data), NULL);
+	bpf_preempt_enable();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+__failure __msg("kernel func bpf_copy_from_user_str is sleepable within non-preemptible region")
+int preempt_sleepable_kfunc(void *ctx)
+{
+	u32 data;
+
+	bpf_preempt_disable();
+	bpf_copy_from_user_str(&data, sizeof(data), NULL, 0);
+	bpf_preempt_enable();
+	return 0;
+}
+
+int __noinline preempt_global_subprog(void)
+{
+	preempt_balance_subprog();
+	return 0;
+}
+
+SEC("?tc")
+__success
+int preempt_global_subprog_test(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	preempt_global_subprog();
+	preempt_enable();
+	return 0;
+}
+
+int __noinline
+global_subprog(int i)
+{
+	if (i)
+		bpf_printk("%p", &i);
+	return i;
+}
+
+int __noinline
+global_sleepable_helper_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+int __noinline
+global_sleepable_kfunc_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user_str(&i, sizeof(i), NULL, 0);
+	global_subprog(i);
+	return i;
+}
+
+int __noinline
+global_subprog_calling_sleepable_global(int i)
+{
+	if (!i)
+		global_sleepable_kfunc_subprog(i);
+	return i;
+}
+
+SEC("?syscall")
+__failure __msg("global functions that may sleep are not allowed in non-sleepable context")
+int preempt_global_sleepable_helper_subprog(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	if (ctx->mark)
+		global_sleepable_helper_subprog(ctx->mark);
+	preempt_enable();
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("global functions that may sleep are not allowed in non-sleepable context")
+int preempt_global_sleepable_kfunc_subprog(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	if (ctx->mark)
+		global_sleepable_kfunc_subprog(ctx->mark);
+	preempt_enable();
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("global functions that may sleep are not allowed in non-sleepable context")
+int preempt_global_sleepable_subprog_indirect(struct __sk_buff *ctx)
+{
+	preempt_disable();
+	if (ctx->mark)
+		global_subprog_calling_sleepable_global(ctx->mark);
+	preempt_enable();
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c b/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c
new file mode 100644
index 000000000000..55907ef961bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/preempted_bpf_ma_op.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_experimental.h"
+
+struct bin_data {
+	char data[256];
+	struct bpf_spin_lock lock;
+};
+
+struct map_value {
+	struct bin_data __kptr * data;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 2048);
+} array SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+bool nomem_err = false;
+
+static int del_array(unsigned int i, int *from)
+{
+	struct map_value *value;
+	struct bin_data *old;
+
+	value = bpf_map_lookup_elem(&array, from);
+	if (!value)
+		return 1;
+
+	old = bpf_kptr_xchg(&value->data, NULL);
+	if (old)
+		bpf_obj_drop(old);
+
+	(*from)++;
+	return 0;
+}
+
+static int add_array(unsigned int i, int *from)
+{
+	struct bin_data *old, *new;
+	struct map_value *value;
+
+	value = bpf_map_lookup_elem(&array, from);
+	if (!value)
+		return 1;
+
+	new = bpf_obj_new(typeof(*new));
+	if (!new) {
+		nomem_err = true;
+		return 1;
+	}
+
+	old = bpf_kptr_xchg(&value->data, new);
+	if (old)
+		bpf_obj_drop(old);
+
+	(*from)++;
+	return 0;
+}
+
+static void del_then_add_array(int from)
+{
+	int i;
+
+	i = from;
+	bpf_loop(512, del_array, &i, 0);
+
+	i = from;
+	bpf_loop(512, add_array, &i, 0);
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG2(test0, int, a)
+{
+	del_then_add_array(0);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test2")
+int BPF_PROG2(test1, int, a, u64, b)
+{
+	del_then_add_array(512);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test3")
+int BPF_PROG2(test2, char, a, int, b, u64, c)
+{
+	del_then_add_array(1024);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test4")
+int BPF_PROG2(test3, void *, a, char, b, int, c, u64, d)
+{
+	del_then_add_array(1536);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/prepare.c b/tools/testing/selftests/bpf/progs/prepare.c
new file mode 100644
index 000000000000..cfc1f48e0d28
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/prepare.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+int err;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} array_map SEC(".maps");
+
+SEC("cgroup_skb/egress")
+int program(struct __sk_buff *skb)
+{
+	err = 0;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/priv_freplace_prog.c b/tools/testing/selftests/bpf/progs/priv_freplace_prog.c
new file mode 100644
index 000000000000..ccf1b04010ba
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/priv_freplace_prog.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("freplace/xdp_prog1")
+int new_xdp_prog2(struct xdp_md *xd)
+{
+	return XDP_DROP;
+}
diff --git a/tools/testing/selftests/bpf/progs/priv_map.c b/tools/testing/selftests/bpf/progs/priv_map.c
new file mode 100644
index 000000000000..9085be50f03b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/priv_map.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_QUEUE);
+	__uint(max_entries, 1);
+	__type(value, __u32);
+} priv_map SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/priv_prog.c b/tools/testing/selftests/bpf/progs/priv_prog.c
new file mode 100644
index 000000000000..725e29595079
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/priv_prog.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("xdp")
+int xdp_prog1(struct xdp_md *xdp)
+{
+	return XDP_DROP;
+}
diff --git a/tools/testing/selftests/bpf/progs/pro_epilogue.c b/tools/testing/selftests/bpf/progs/pro_epilogue.c
new file mode 100644
index 000000000000..d97d6e07ef5c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pro_epilogue.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+void __kfunc_btf_root(void)
+{
+	bpf_kfunc_st_ops_inc10(NULL);
+}
+
+static __noinline __used int subprog(struct st_ops_args *args)
+{
+	args->a += 1;
+	return args->a;
+}
+
+__success
+/* prologue */
+__xlated("0: r6 = *(u64 *)(r1 +0)")
+__xlated("1: r7 = *(u64 *)(r6 +0)")
+__xlated("2: r7 += 1000")
+__xlated("3: *(u64 *)(r6 +0) = r7")
+/* main prog */
+__xlated("4: r1 = *(u64 *)(r1 +0)")
+__xlated("5: r6 = r1")
+__xlated("6: call kernel-function")
+__xlated("7: r1 = r6")
+__xlated("8: call pc+1")
+__xlated("9: exit")
+SEC("struct_ops/test_prologue")
+__naked int test_prologue(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r1 +0);"
+	"r6 = r1;"
+	"call %[bpf_kfunc_st_ops_inc10];"
+	"r1 = r6;"
+	"call subprog;"
+	"exit;"
+	:
+	: __imm(bpf_kfunc_st_ops_inc10)
+	: __clobber_all);
+}
+
+__success
+/* save __u64 *ctx to stack */
+__xlated("0: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("1: r1 = *(u64 *)(r1 +0)")
+__xlated("2: r6 = r1")
+__xlated("3: call kernel-function")
+__xlated("4: r1 = r6")
+__xlated("5: call pc+")
+/* epilogue */
+__xlated("6: r1 = *(u64 *)(r10 -8)")
+__xlated("7: r1 = *(u64 *)(r1 +0)")
+__xlated("8: r6 = *(u64 *)(r1 +0)")
+__xlated("9: r6 += 10000")
+__xlated("10: *(u64 *)(r1 +0) = r6")
+__xlated("11: r0 = r6")
+__xlated("12: r0 *= 2")
+__xlated("13: exit")
+SEC("struct_ops/test_epilogue")
+__naked int test_epilogue(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r1 +0);"
+	"r6 = r1;"
+	"call %[bpf_kfunc_st_ops_inc10];"
+	"r1 = r6;"
+	"call subprog;"
+	"exit;"
+	:
+	: __imm(bpf_kfunc_st_ops_inc10)
+	: __clobber_all);
+}
+
+__success
+/* prologue */
+__xlated("0: r6 = *(u64 *)(r1 +0)")
+__xlated("1: r7 = *(u64 *)(r6 +0)")
+__xlated("2: r7 += 1000")
+__xlated("3: *(u64 *)(r6 +0) = r7")
+/* save __u64 *ctx to stack */
+__xlated("4: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("5: r1 = *(u64 *)(r1 +0)")
+__xlated("6: r6 = r1")
+__xlated("7: call kernel-function")
+__xlated("8: r1 = r6")
+__xlated("9: call pc+")
+/* epilogue */
+__xlated("10: r1 = *(u64 *)(r10 -8)")
+__xlated("11: r1 = *(u64 *)(r1 +0)")
+__xlated("12: r6 = *(u64 *)(r1 +0)")
+__xlated("13: r6 += 10000")
+__xlated("14: *(u64 *)(r1 +0) = r6")
+__xlated("15: r0 = r6")
+__xlated("16: r0 *= 2")
+__xlated("17: exit")
+SEC("struct_ops/test_pro_epilogue")
+__naked int test_pro_epilogue(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r1 +0);"
+	"r6 = r1;"
+	"call %[bpf_kfunc_st_ops_inc10];"
+	"r1 = r6;"
+	"call subprog;"
+	"exit;"
+	:
+	: __imm(bpf_kfunc_st_ops_inc10)
+	: __clobber_all);
+}
+
+SEC("syscall")
+__retval(1011) /* PROLOGUE_A [1000] + KFUNC_INC10 + SUBPROG_A [1] */
+int syscall_prologue(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_prologue(&args);
+}
+
+SEC("syscall")
+__retval(20022) /* (KFUNC_INC10 + SUBPROG_A [1] + EPILOGUE_A [10000]) * 2 */
+int syscall_epilogue(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_epilogue(&args);
+}
+
+SEC("syscall")
+__retval(22022) /* (PROLOGUE_A [1000] + KFUNC_INC10 + SUBPROG_A [1] + EPILOGUE_A [10000]) * 2 */
+int syscall_pro_epilogue(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_pro_epilogue(&args);
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops pro_epilogue = {
+	.test_prologue = (void *)test_prologue,
+	.test_epilogue = (void *)test_epilogue,
+	.test_pro_epilogue = (void *)test_pro_epilogue,
+};
diff --git a/tools/testing/selftests/bpf/progs/pro_epilogue_goto_start.c b/tools/testing/selftests/bpf/progs/pro_epilogue_goto_start.c
new file mode 100644
index 000000000000..6048d79be48b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pro_epilogue_goto_start.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__success
+/* prologue */
+__xlated("0: r6 = *(u64 *)(r1 +0)")
+__xlated("1: r7 = *(u64 *)(r6 +0)")
+__xlated("2: r7 += 1000")
+__xlated("3: *(u64 *)(r6 +0) = r7")
+/* main prog */
+__xlated("4: if r1 == 0x0 goto pc+5")
+__xlated("5: if r1 == 0x1 goto pc+2")
+__xlated("6: r1 = 1")
+__xlated("7: goto pc-3")
+__xlated("8: r1 = 0")
+__xlated("9: goto pc-6")
+__xlated("10: r0 = 0")
+__xlated("11: exit")
+SEC("struct_ops/test_prologue_goto_start")
+__naked int test_prologue_goto_start(void)
+{
+	asm volatile (
+	"if r1 == 0 goto +5;"
+	"if r1 == 1 goto +2;"
+	"r1 = 1;"
+	"goto -3;"
+	"r1 = 0;"
+	"goto -6;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+__success
+/* save __u64 *ctx to stack */
+__xlated("0: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("1: if r1 == 0x0 goto pc+5")
+__xlated("2: if r1 == 0x1 goto pc+2")
+__xlated("3: r1 = 1")
+__xlated("4: goto pc-3")
+__xlated("5: r1 = 0")
+__xlated("6: goto pc-6")
+__xlated("7: r0 = 0")
+/* epilogue */
+__xlated("8: r1 = *(u64 *)(r10 -8)")
+__xlated("9: r1 = *(u64 *)(r1 +0)")
+__xlated("10: r6 = *(u64 *)(r1 +0)")
+__xlated("11: r6 += 10000")
+__xlated("12: *(u64 *)(r1 +0) = r6")
+__xlated("13: r0 = r6")
+__xlated("14: r0 *= 2")
+__xlated("15: exit")
+SEC("struct_ops/test_epilogue_goto_start")
+__naked int test_epilogue_goto_start(void)
+{
+	asm volatile (
+	"if r1 == 0 goto +5;"
+	"if r1 == 1 goto +2;"
+	"r1 = 1;"
+	"goto -3;"
+	"r1 = 0;"
+	"goto -6;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+__success
+/* prologue */
+__xlated("0: r6 = *(u64 *)(r1 +0)")
+__xlated("1: r7 = *(u64 *)(r6 +0)")
+__xlated("2: r7 += 1000")
+__xlated("3: *(u64 *)(r6 +0) = r7")
+/* save __u64 *ctx to stack */
+__xlated("4: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("5: if r1 == 0x0 goto pc+5")
+__xlated("6: if r1 == 0x1 goto pc+2")
+__xlated("7: r1 = 1")
+__xlated("8: goto pc-3")
+__xlated("9: r1 = 0")
+__xlated("10: goto pc-6")
+__xlated("11: r0 = 0")
+/* epilogue */
+__xlated("12: r1 = *(u64 *)(r10 -8)")
+__xlated("13: r1 = *(u64 *)(r1 +0)")
+__xlated("14: r6 = *(u64 *)(r1 +0)")
+__xlated("15: r6 += 10000")
+__xlated("16: *(u64 *)(r1 +0) = r6")
+__xlated("17: r0 = r6")
+__xlated("18: r0 *= 2")
+__xlated("19: exit")
+SEC("struct_ops/test_pro_epilogue_goto_start")
+__naked int test_pro_epilogue_goto_start(void)
+{
+	asm volatile (
+	"if r1 == 0 goto +5;"
+	"if r1 == 1 goto +2;"
+	"r1 = 1;"
+	"goto -3;"
+	"r1 = 0;"
+	"goto -6;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops epilogue_goto_start = {
+	.test_prologue = (void *)test_prologue_goto_start,
+	.test_epilogue = (void *)test_epilogue_goto_start,
+	.test_pro_epilogue = (void *)test_pro_epilogue_goto_start,
+};
+
+SEC("syscall")
+__retval(0)
+int syscall_prologue_goto_start(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_prologue(&args);
+}
+
+SEC("syscall")
+__retval(20000) /* (EPILOGUE_A [10000]) * 2 */
+int syscall_epilogue_goto_start(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_epilogue(&args);
+}
+
+SEC("syscall")
+__retval(22000) /* (PROLOGUE_A [1000] + EPILOGUE_A [10000]) * 2 */
+int syscall_pro_epilogue_goto_start(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_pro_epilogue(&args);
+}
diff --git a/tools/testing/selftests/bpf/progs/pro_epilogue_with_kfunc.c b/tools/testing/selftests/bpf/progs/pro_epilogue_with_kfunc.c
new file mode 100644
index 000000000000..a5a8f08ac8fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pro_epilogue_with_kfunc.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+void __kfunc_btf_root(void)
+{
+	bpf_kfunc_st_ops_inc10(NULL);
+}
+
+static __noinline __used int subprog(struct st_ops_args *args)
+{
+	args->a += 1;
+	return args->a;
+}
+
+__success
+/* prologue */
+__xlated("0: r8 = r1")
+__xlated("1: r1 = 0")
+__xlated("2: call kernel-function")
+__xlated("3: if r0 != 0x0 goto pc+5")
+__xlated("4: r6 = *(u64 *)(r8 +0)")
+__xlated("5: r7 = *(u64 *)(r6 +0)")
+__xlated("6: r7 += 1000")
+__xlated("7: *(u64 *)(r6 +0) = r7")
+__xlated("8: goto pc+2")
+__xlated("9: r1 = r0")
+__xlated("10: call kernel-function")
+__xlated("11: r1 = r8")
+/* save __u64 *ctx to stack */
+__xlated("12: *(u64 *)(r10 -8) = r1")
+/* main prog */
+__xlated("13: r1 = *(u64 *)(r1 +0)")
+__xlated("14: r6 = r1")
+__xlated("15: call kernel-function")
+__xlated("16: r1 = r6")
+__xlated("17: call pc+")
+/* epilogue */
+__xlated("18: r1 = 0")
+__xlated("19: r6 = 0")
+__xlated("20: call kernel-function")
+__xlated("21: if r0 != 0x0 goto pc+6")
+__xlated("22: r1 = *(u64 *)(r10 -8)")
+__xlated("23: r1 = *(u64 *)(r1 +0)")
+__xlated("24: r6 = *(u64 *)(r1 +0)")
+__xlated("25: r6 += 10000")
+__xlated("26: *(u64 *)(r1 +0) = r6")
+__xlated("27: goto pc+2")
+__xlated("28: r1 = r0")
+__xlated("29: call kernel-function")
+__xlated("30: r0 = r6")
+__xlated("31: r0 *= 2")
+__xlated("32: exit")
+SEC("struct_ops/test_pro_epilogue")
+__naked int test_kfunc_pro_epilogue(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r1 +0);"
+	"r6 = r1;"
+	"call %[bpf_kfunc_st_ops_inc10];"
+	"r1 = r6;"
+	"call subprog;"
+	"exit;"
+	:
+	: __imm(bpf_kfunc_st_ops_inc10)
+	: __clobber_all);
+}
+
+SEC("syscall")
+__retval(22022) /* (PROLOGUE_A [1000] + KFUNC_INC10 + SUBPROG_A [1] + EPILOGUE_A [10000]) * 2 */
+int syscall_pro_epilogue(void *ctx)
+{
+	struct st_ops_args args = {};
+
+	return bpf_kfunc_st_ops_test_pro_epilogue(&args);
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_st_ops pro_epilogue_with_kfunc = {
+	.test_pro_epilogue = (void *)test_kfunc_pro_epilogue,
+};
diff --git a/tools/testing/selftests/bpf/progs/profiler.h b/tools/testing/selftests/bpf/progs/profiler.h
new file mode 100644
index 000000000000..3bac4fdd4bdf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/profiler.h
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#pragma once
+
+#define TASK_COMM_LEN 16
+#define MAX_ANCESTORS 4
+#define MAX_PATH 256
+#define KILL_TARGET_LEN 64
+#define CTL_MAXNAME 10
+#define MAX_ARGS_LEN 4096
+#define MAX_FILENAME_LEN 512
+#define MAX_ENVIRON_LEN 8192
+#define MAX_PATH_DEPTH 32
+#define MAX_FILEPATH_LENGTH (MAX_PATH_DEPTH * MAX_PATH)
+#define MAX_CGROUPS_PATH_DEPTH 8
+
+#define MAX_METADATA_PAYLOAD_LEN TASK_COMM_LEN
+
+#define MAX_CGROUP_PAYLOAD_LEN \
+	(MAX_PATH * 2 + (MAX_PATH * MAX_CGROUPS_PATH_DEPTH))
+
+#define MAX_CAP_PAYLOAD_LEN (MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN)
+
+#define MAX_SYSCTL_PAYLOAD_LEN \
+	(MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + CTL_MAXNAME + MAX_PATH)
+
+#define MAX_KILL_PAYLOAD_LEN \
+	(MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + TASK_COMM_LEN + \
+	 KILL_TARGET_LEN)
+
+#define MAX_EXEC_PAYLOAD_LEN \
+	(MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + MAX_FILENAME_LEN + \
+	 MAX_ARGS_LEN + MAX_ENVIRON_LEN)
+
+#define MAX_FILEMOD_PAYLOAD_LEN \
+	(MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN + MAX_FILEPATH_LENGTH + \
+	 MAX_FILEPATH_LENGTH)
+
+enum data_type {
+	INVALID_EVENT,
+	EXEC_EVENT,
+	FORK_EVENT,
+	KILL_EVENT,
+	SYSCTL_EVENT,
+	FILEMOD_EVENT,
+	MAX_DATA_TYPE_EVENT
+};
+
+enum filemod_type {
+	FMOD_OPEN,
+	FMOD_LINK,
+	FMOD_SYMLINK,
+};
+
+struct ancestors_data_t {
+	pid_t ancestor_pids[MAX_ANCESTORS];
+	uint32_t ancestor_exec_ids[MAX_ANCESTORS];
+	uint64_t ancestor_start_times[MAX_ANCESTORS];
+	uint32_t num_ancestors;
+};
+
+struct var_metadata_t {
+	enum data_type type;
+	pid_t pid;
+	uint32_t exec_id;
+	uid_t uid;
+	gid_t gid;
+	uint64_t start_time;
+	uint32_t cpu_id;
+	uint64_t bpf_stats_num_perf_events;
+	uint64_t bpf_stats_start_ktime_ns;
+	uint8_t comm_length;
+};
+
+struct cgroup_data_t {
+	ino_t cgroup_root_inode;
+	ino_t cgroup_proc_inode;
+	uint64_t cgroup_root_mtime;
+	uint64_t cgroup_proc_mtime;
+	uint16_t cgroup_root_length;
+	uint16_t cgroup_proc_length;
+	uint16_t cgroup_full_length;
+	int cgroup_full_path_root_pos;
+};
+
+struct var_sysctl_data_t {
+	struct var_metadata_t meta;
+	struct cgroup_data_t cgroup_data;
+	struct ancestors_data_t ancestors_info;
+	uint8_t sysctl_val_length;
+	uint16_t sysctl_path_length;
+	char payload[MAX_SYSCTL_PAYLOAD_LEN];
+};
+
+struct var_kill_data_t {
+	struct var_metadata_t meta;
+	struct cgroup_data_t cgroup_data;
+	struct ancestors_data_t ancestors_info;
+	pid_t kill_target_pid;
+	int kill_sig;
+	uint32_t kill_count;
+	uint64_t last_kill_time;
+	uint8_t kill_target_name_length;
+	uint8_t kill_target_cgroup_proc_length;
+	char payload[MAX_KILL_PAYLOAD_LEN];
+	size_t payload_length;
+};
+
+struct var_exec_data_t {
+	struct var_metadata_t meta;
+	struct cgroup_data_t cgroup_data;
+	pid_t parent_pid;
+	uint32_t parent_exec_id;
+	uid_t parent_uid;
+	uint64_t parent_start_time;
+	uint16_t bin_path_length;
+	uint16_t cmdline_length;
+	uint16_t environment_length;
+	char payload[MAX_EXEC_PAYLOAD_LEN];
+};
+
+struct var_fork_data_t {
+	struct var_metadata_t meta;
+	pid_t parent_pid;
+	uint32_t parent_exec_id;
+	uint64_t parent_start_time;
+	char payload[MAX_METADATA_PAYLOAD_LEN];
+};
+
+struct var_filemod_data_t {
+	struct var_metadata_t meta;
+	struct cgroup_data_t cgroup_data;
+	enum filemod_type fmod_type;
+	unsigned int dst_flags;
+	uint32_t src_device_id;
+	uint32_t dst_device_id;
+	ino_t src_inode;
+	ino_t dst_inode;
+	uint16_t src_filepath_length;
+	uint16_t dst_filepath_length;
+	char payload[MAX_FILEMOD_PAYLOAD_LEN];
+};
+
+struct profiler_config_struct {
+	bool fetch_cgroups_from_bpf;
+	ino_t cgroup_fs_inode;
+	ino_t cgroup_login_session_inode;
+	uint64_t kill_signals_mask;
+	ino_t inode_filter;
+	uint32_t stale_info_secs;
+	bool use_variable_buffers;
+	bool read_environ_from_exec;
+	bool enable_cgroup_v1_resolver;
+};
+
+struct bpf_func_stats_data {
+	uint64_t time_elapsed_ns;
+	uint64_t num_executions;
+	uint64_t num_perf_events;
+};
+
+struct bpf_func_stats_ctx {
+	uint64_t start_time_ns;
+	struct bpf_func_stats_data* bpf_func_stats_data_val;
+};
+
+enum bpf_function_id {
+	profiler_bpf_proc_sys_write,
+	profiler_bpf_sched_process_exec,
+	profiler_bpf_sched_process_exit,
+	profiler_bpf_sys_enter_kill,
+	profiler_bpf_do_filp_open_ret,
+	profiler_bpf_sched_process_fork,
+	profiler_bpf_vfs_link,
+	profiler_bpf_vfs_symlink,
+	profiler_bpf_max_function_id
+};
diff --git a/tools/testing/selftests/bpf/progs/profiler.inc.h b/tools/testing/selftests/bpf/progs/profiler.inc.h
new file mode 100644
index 000000000000..813143b4985d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/profiler.inc.h
@@ -0,0 +1,960 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "profiler.h"
+#include "err.h"
+#include "bpf_experimental.h"
+#include "bpf_compiler.h"
+#include "bpf_misc.h"
+
+#ifndef NULL
+#define NULL 0
+#endif
+
+#define O_WRONLY 00000001
+#define O_RDWR 00000002
+#define O_DIRECTORY 00200000
+#define __O_TMPFILE 020000000
+#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
+#define S_IFMT 00170000
+#define S_IFSOCK 0140000
+#define S_IFLNK 0120000
+#define S_IFREG 0100000
+#define S_IFBLK 0060000
+#define S_IFDIR 0040000
+#define S_IFCHR 0020000
+#define S_IFIFO 0010000
+#define S_ISUID 0004000
+#define S_ISGID 0002000
+#define S_ISVTX 0001000
+#define S_ISLNK(m) (((m)&S_IFMT) == S_IFLNK)
+#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
+#define S_ISCHR(m) (((m)&S_IFMT) == S_IFCHR)
+#define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK)
+#define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO)
+#define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK)
+
+#define KILL_DATA_ARRAY_SIZE 8
+
+struct var_kill_data_arr_t {
+	struct var_kill_data_t array[KILL_DATA_ARRAY_SIZE];
+};
+
+union any_profiler_data_t {
+	struct var_exec_data_t var_exec;
+	struct var_kill_data_t var_kill;
+	struct var_sysctl_data_t var_sysctl;
+	struct var_filemod_data_t var_filemod;
+	struct var_fork_data_t var_fork;
+	struct var_kill_data_arr_t var_kill_data_arr;
+};
+
+volatile struct profiler_config_struct bpf_config = {};
+
+#define FETCH_CGROUPS_FROM_BPF (bpf_config.fetch_cgroups_from_bpf)
+#define CGROUP_FS_INODE (bpf_config.cgroup_fs_inode)
+#define CGROUP_LOGIN_SESSION_INODE \
+	(bpf_config.cgroup_login_session_inode)
+#define KILL_SIGNALS (bpf_config.kill_signals_mask)
+#define STALE_INFO (bpf_config.stale_info_secs)
+#define INODE_FILTER (bpf_config.inode_filter)
+#define READ_ENVIRON_FROM_EXEC (bpf_config.read_environ_from_exec)
+#define ENABLE_CGROUP_V1_RESOLVER (bpf_config.enable_cgroup_v1_resolver)
+
+struct kernfs_iattrs___52 {
+	struct iattr ia_iattr;
+};
+
+struct kernfs_node___52 {
+	union /* kernfs_node_id */ {
+		struct {
+			u32 ino;
+			u32 generation;
+		};
+		u64 id;
+	} id;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, u32);
+	__type(value, union any_profiler_data_t);
+} data_heap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} events SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, KILL_DATA_ARRAY_SIZE);
+	__type(key, u32);
+	__type(value, struct var_kill_data_arr_t);
+} var_tpid_to_data SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, profiler_bpf_max_function_id);
+	__type(key, u32);
+	__type(value, struct bpf_func_stats_data);
+} bpf_func_stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u32);
+	__type(value, bool);
+	__uint(max_entries, 16);
+} allowed_devices SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u64);
+	__type(value, bool);
+	__uint(max_entries, 1024);
+} allowed_file_inodes SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u64);
+	__type(value, bool);
+	__uint(max_entries, 1024);
+} allowed_directory_inodes SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u32);
+	__type(value, bool);
+	__uint(max_entries, 16);
+} disallowed_exec_inodes SEC(".maps");
+
+static INLINE bool IS_ERR(const void* ptr)
+{
+	return IS_ERR_VALUE((unsigned long)ptr);
+}
+
+static INLINE u32 get_userspace_pid()
+{
+	return bpf_get_current_pid_tgid() >> 32;
+}
+
+static INLINE bool is_init_process(u32 tgid)
+{
+	return tgid == 1 || tgid == 0;
+}
+
+static INLINE unsigned long
+probe_read_lim(void* dst, void* src, unsigned long len, unsigned long max)
+{
+	len = len < max ? len : max;
+	if (len > 1) {
+		if (bpf_probe_read_kernel(dst, len, src))
+			return 0;
+	} else if (len == 1) {
+		if (bpf_probe_read_kernel(dst, 1, src))
+			return 0;
+	}
+	return len;
+}
+
+static INLINE int get_var_spid_index(struct var_kill_data_arr_t* arr_struct,
+				     int spid)
+{
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < ARRAY_SIZE(arr_struct->array); i++)
+		if (arr_struct->array[i].meta.pid == spid)
+			return i;
+	return -1;
+}
+
+static INLINE void populate_ancestors(struct task_struct* task,
+				      struct ancestors_data_t* ancestors_data)
+{
+	struct task_struct* parent = task;
+	u32 num_ancestors, ppid;
+
+	ancestors_data->num_ancestors = 0;
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (num_ancestors = 0; num_ancestors < MAX_ANCESTORS; num_ancestors++) {
+		parent = BPF_CORE_READ(parent, real_parent);
+		if (parent == NULL)
+			break;
+		ppid = BPF_CORE_READ(parent, tgid);
+		if (is_init_process(ppid))
+			break;
+		ancestors_data->ancestor_pids[num_ancestors] = ppid;
+		ancestors_data->ancestor_exec_ids[num_ancestors] =
+			BPF_CORE_READ(parent, self_exec_id);
+		ancestors_data->ancestor_start_times[num_ancestors] =
+			BPF_CORE_READ(parent, start_time);
+		ancestors_data->num_ancestors = num_ancestors;
+	}
+}
+
+static INLINE void* read_full_cgroup_path(struct kernfs_node* cgroup_node,
+					  struct kernfs_node* cgroup_root_node,
+					  void* payload,
+					  int* root_pos)
+{
+	void* payload_start = payload;
+	size_t filepart_length;
+
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < MAX_CGROUPS_PATH_DEPTH; i++) {
+		filepart_length =
+			bpf_probe_read_kernel_str(payload, MAX_PATH,
+						  BPF_CORE_READ(cgroup_node, name));
+		if (!cgroup_node)
+			return payload;
+		if (cgroup_node == cgroup_root_node)
+			*root_pos = payload - payload_start;
+		if (bpf_cmp_likely(filepart_length, <=, MAX_PATH)) {
+			payload += filepart_length;
+		}
+		cgroup_node = BPF_CORE_READ(cgroup_node, __parent);
+	}
+	return payload;
+}
+
+static ino_t get_inode_from_kernfs(struct kernfs_node* node)
+{
+	struct kernfs_node___52* node52 = (void*)node;
+
+	if (bpf_core_field_exists(node52->id.ino)) {
+		barrier_var(node52);
+		return BPF_CORE_READ(node52, id.ino);
+	} else {
+		barrier_var(node);
+		return (u64)BPF_CORE_READ(node, id);
+	}
+}
+
+extern bool CONFIG_CGROUP_PIDS __kconfig __weak;
+enum cgroup_subsys_id___local {
+	pids_cgrp_id___local = 123, /* value doesn't matter */
+};
+
+static INLINE void* populate_cgroup_info(struct cgroup_data_t* cgroup_data,
+					 struct task_struct* task,
+					 void* payload)
+{
+	struct kernfs_node* root_kernfs =
+		BPF_CORE_READ(task, nsproxy, cgroup_ns, root_cset, dfl_cgrp, kn);
+	struct kernfs_node* proc_kernfs = BPF_CORE_READ(task, cgroups, dfl_cgrp, kn);
+
+#if __has_builtin(__builtin_preserve_enum_value)
+	if (ENABLE_CGROUP_V1_RESOLVER && CONFIG_CGROUP_PIDS) {
+		int cgrp_id = bpf_core_enum_value(enum cgroup_subsys_id___local,
+						  pids_cgrp_id___local);
+#ifdef UNROLL
+		__pragma_loop_unroll
+#endif
+		for (int i = 0; i < CGROUP_SUBSYS_COUNT; i++) {
+			struct cgroup_subsys_state* subsys =
+				BPF_CORE_READ(task, cgroups, subsys[i]);
+			if (subsys != NULL) {
+				int subsys_id = BPF_CORE_READ(subsys, ss, id);
+				if (subsys_id == cgrp_id) {
+					proc_kernfs = BPF_CORE_READ(subsys, cgroup, kn);
+					root_kernfs = BPF_CORE_READ(subsys, ss, root, kf_root, kn);
+					break;
+				}
+			}
+		}
+	}
+#endif
+
+	cgroup_data->cgroup_root_inode = get_inode_from_kernfs(root_kernfs);
+	cgroup_data->cgroup_proc_inode = get_inode_from_kernfs(proc_kernfs);
+
+	if (bpf_core_field_exists(root_kernfs->iattr->ia_mtime)) {
+		cgroup_data->cgroup_root_mtime =
+			BPF_CORE_READ(root_kernfs, iattr, ia_mtime.tv_nsec);
+		cgroup_data->cgroup_proc_mtime =
+			BPF_CORE_READ(proc_kernfs, iattr, ia_mtime.tv_nsec);
+	} else {
+		struct kernfs_iattrs___52* root_iattr =
+			(struct kernfs_iattrs___52*)BPF_CORE_READ(root_kernfs, iattr);
+		cgroup_data->cgroup_root_mtime =
+			BPF_CORE_READ(root_iattr, ia_iattr.ia_mtime.tv_nsec);
+
+		struct kernfs_iattrs___52* proc_iattr =
+			(struct kernfs_iattrs___52*)BPF_CORE_READ(proc_kernfs, iattr);
+		cgroup_data->cgroup_proc_mtime =
+			BPF_CORE_READ(proc_iattr, ia_iattr.ia_mtime.tv_nsec);
+	}
+
+	cgroup_data->cgroup_root_length = 0;
+	cgroup_data->cgroup_proc_length = 0;
+	cgroup_data->cgroup_full_length = 0;
+
+	size_t cgroup_root_length =
+		bpf_probe_read_kernel_str(payload, MAX_PATH,
+					  BPF_CORE_READ(root_kernfs, name));
+	if (bpf_cmp_likely(cgroup_root_length, <=, MAX_PATH)) {
+		cgroup_data->cgroup_root_length = cgroup_root_length;
+		payload += cgroup_root_length;
+	}
+
+	size_t cgroup_proc_length =
+		bpf_probe_read_kernel_str(payload, MAX_PATH,
+					  BPF_CORE_READ(proc_kernfs, name));
+	if (bpf_cmp_likely(cgroup_proc_length, <=, MAX_PATH)) {
+		cgroup_data->cgroup_proc_length = cgroup_proc_length;
+		payload += cgroup_proc_length;
+	}
+
+	if (FETCH_CGROUPS_FROM_BPF) {
+		cgroup_data->cgroup_full_path_root_pos = -1;
+		void* payload_end_pos = read_full_cgroup_path(proc_kernfs, root_kernfs, payload,
+							      &cgroup_data->cgroup_full_path_root_pos);
+		cgroup_data->cgroup_full_length = payload_end_pos - payload;
+		payload = payload_end_pos;
+	}
+
+	return (void*)payload;
+}
+
+static INLINE void* populate_var_metadata(struct var_metadata_t* metadata,
+					  struct task_struct* task,
+					  u32 pid, void* payload)
+{
+	u64 uid_gid = bpf_get_current_uid_gid();
+
+	metadata->uid = (u32)uid_gid;
+	metadata->gid = uid_gid >> 32;
+	metadata->pid = pid;
+	metadata->exec_id = BPF_CORE_READ(task, self_exec_id);
+	metadata->start_time = BPF_CORE_READ(task, start_time);
+	metadata->comm_length = 0;
+
+	size_t comm_length = bpf_core_read_str(payload, TASK_COMM_LEN, &task->comm);
+	if (bpf_cmp_likely(comm_length, <=, TASK_COMM_LEN)) {
+		metadata->comm_length = comm_length;
+		payload += comm_length;
+	}
+
+	return (void*)payload;
+}
+
+static INLINE struct var_kill_data_t*
+get_var_kill_data(struct pt_regs* ctx, int spid, int tpid, int sig)
+{
+	int zero = 0;
+	struct var_kill_data_t* kill_data = bpf_map_lookup_elem(&data_heap, &zero);
+
+	if (kill_data == NULL)
+		return NULL;
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+
+	void* payload = populate_var_metadata(&kill_data->meta, task, spid, kill_data->payload);
+	payload = populate_cgroup_info(&kill_data->cgroup_data, task, payload);
+	size_t payload_length = payload - (void*)kill_data->payload;
+	kill_data->payload_length = payload_length;
+	populate_ancestors(task, &kill_data->ancestors_info);
+	kill_data->meta.type = KILL_EVENT;
+	kill_data->kill_target_pid = tpid;
+	kill_data->kill_sig = sig;
+	kill_data->kill_count = 1;
+	kill_data->last_kill_time = bpf_ktime_get_ns();
+	return kill_data;
+}
+
+static INLINE int trace_var_sys_kill(void* ctx, int tpid, int sig)
+{
+	if ((KILL_SIGNALS & (1ULL << sig)) == 0)
+		return 0;
+
+	u32 spid = get_userspace_pid();
+	struct var_kill_data_arr_t* arr_struct = bpf_map_lookup_elem(&var_tpid_to_data, &tpid);
+
+	if (arr_struct == NULL) {
+		struct var_kill_data_t* kill_data = get_var_kill_data(ctx, spid, tpid, sig);
+		int zero = 0;
+
+		if (kill_data == NULL)
+			return 0;
+		arr_struct = bpf_map_lookup_elem(&data_heap, &zero);
+		if (arr_struct == NULL)
+			return 0;
+		bpf_probe_read_kernel(&arr_struct->array[0],
+				      sizeof(arr_struct->array[0]), kill_data);
+	} else {
+		int index = get_var_spid_index(arr_struct, spid);
+
+		if (index == -1) {
+			struct var_kill_data_t* kill_data =
+				get_var_kill_data(ctx, spid, tpid, sig);
+			if (kill_data == NULL)
+				return 0;
+#ifdef UNROLL
+			__pragma_loop_unroll
+#endif
+			for (int i = 0; i < ARRAY_SIZE(arr_struct->array); i++)
+				if (arr_struct->array[i].meta.pid == 0) {
+					bpf_probe_read_kernel(&arr_struct->array[i],
+							      sizeof(arr_struct->array[i]),
+							      kill_data);
+					bpf_map_update_elem(&var_tpid_to_data, &tpid,
+							    arr_struct, 0);
+
+					return 0;
+				}
+			return 0;
+		}
+
+		struct var_kill_data_t* kill_data = &arr_struct->array[index];
+
+		u64 delta_sec =
+			(bpf_ktime_get_ns() - kill_data->last_kill_time) / 1000000000;
+
+		if (delta_sec < STALE_INFO) {
+			kill_data->kill_count++;
+			kill_data->last_kill_time = bpf_ktime_get_ns();
+			bpf_probe_read_kernel(&arr_struct->array[index],
+					      sizeof(arr_struct->array[index]),
+					      kill_data);
+		} else {
+			struct var_kill_data_t* kill_data =
+				get_var_kill_data(ctx, spid, tpid, sig);
+			if (kill_data == NULL)
+				return 0;
+			bpf_probe_read_kernel(&arr_struct->array[index],
+					      sizeof(arr_struct->array[index]),
+					      kill_data);
+		}
+	}
+	bpf_map_update_elem(&var_tpid_to_data, &tpid, arr_struct, 0);
+	return 0;
+}
+
+static INLINE void bpf_stats_enter(struct bpf_func_stats_ctx* bpf_stat_ctx,
+				   enum bpf_function_id func_id)
+{
+	int func_id_key = func_id;
+
+	bpf_stat_ctx->start_time_ns = bpf_ktime_get_ns();
+	bpf_stat_ctx->bpf_func_stats_data_val =
+		bpf_map_lookup_elem(&bpf_func_stats, &func_id_key);
+	if (bpf_stat_ctx->bpf_func_stats_data_val)
+		bpf_stat_ctx->bpf_func_stats_data_val->num_executions++;
+}
+
+static INLINE void bpf_stats_exit(struct bpf_func_stats_ctx* bpf_stat_ctx)
+{
+	if (bpf_stat_ctx->bpf_func_stats_data_val)
+		bpf_stat_ctx->bpf_func_stats_data_val->time_elapsed_ns +=
+			bpf_ktime_get_ns() - bpf_stat_ctx->start_time_ns;
+}
+
+static INLINE void
+bpf_stats_pre_submit_var_perf_event(struct bpf_func_stats_ctx* bpf_stat_ctx,
+				    struct var_metadata_t* meta)
+{
+	if (bpf_stat_ctx->bpf_func_stats_data_val) {
+		bpf_stat_ctx->bpf_func_stats_data_val->num_perf_events++;
+		meta->bpf_stats_num_perf_events =
+			bpf_stat_ctx->bpf_func_stats_data_val->num_perf_events;
+	}
+	meta->bpf_stats_start_ktime_ns = bpf_stat_ctx->start_time_ns;
+	meta->cpu_id = bpf_get_smp_processor_id();
+}
+
+static INLINE size_t
+read_absolute_file_path_from_dentry(struct dentry* filp_dentry, void* payload)
+{
+	size_t length = 0;
+	size_t filepart_length;
+	struct dentry* parent_dentry;
+
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < MAX_PATH_DEPTH; i++) {
+		filepart_length =
+			bpf_probe_read_kernel_str(payload, MAX_PATH,
+						  BPF_CORE_READ(filp_dentry, d_name.name));
+		bpf_nop_mov(filepart_length);
+		if (bpf_cmp_unlikely(filepart_length, >, MAX_PATH))
+			break;
+		payload += filepart_length;
+		length += filepart_length;
+
+		parent_dentry = BPF_CORE_READ(filp_dentry, d_parent);
+		if (filp_dentry == parent_dentry)
+			break;
+		filp_dentry = parent_dentry;
+	}
+
+	return length;
+}
+
+static INLINE bool
+is_ancestor_in_allowed_inodes(struct dentry* filp_dentry)
+{
+	struct dentry* parent_dentry;
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < MAX_PATH_DEPTH; i++) {
+		u64 dir_ino = BPF_CORE_READ(filp_dentry, d_inode, i_ino);
+		bool* allowed_dir = bpf_map_lookup_elem(&allowed_directory_inodes, &dir_ino);
+
+		if (allowed_dir != NULL)
+			return true;
+		parent_dentry = BPF_CORE_READ(filp_dentry, d_parent);
+		if (filp_dentry == parent_dentry)
+			break;
+		filp_dentry = parent_dentry;
+	}
+	return false;
+}
+
+static INLINE bool is_dentry_allowed_for_filemod(struct dentry* file_dentry,
+						 u32* device_id,
+						 u64* file_ino)
+{
+	u32 dev_id = BPF_CORE_READ(file_dentry, d_sb, s_dev);
+	*device_id = dev_id;
+	bool* allowed_device = bpf_map_lookup_elem(&allowed_devices, &dev_id);
+
+	if (allowed_device == NULL)
+		return false;
+
+	u64 ino = BPF_CORE_READ(file_dentry, d_inode, i_ino);
+	*file_ino = ino;
+	bool* allowed_file = bpf_map_lookup_elem(&allowed_file_inodes, &ino);
+
+	if (allowed_file == NULL)
+		if (!is_ancestor_in_allowed_inodes(BPF_CORE_READ(file_dentry, d_parent)))
+			return false;
+	return true;
+}
+
+SEC("kprobe/proc_sys_write")
+ssize_t BPF_KPROBE(kprobe__proc_sys_write,
+		   struct file* filp, const char* buf,
+		   size_t count, loff_t* ppos)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_proc_sys_write);
+
+	u32 pid = get_userspace_pid();
+	int zero = 0;
+	struct var_sysctl_data_t* sysctl_data =
+		bpf_map_lookup_elem(&data_heap, &zero);
+	if (!sysctl_data)
+		goto out;
+
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+	sysctl_data->meta.type = SYSCTL_EVENT;
+	void* payload = populate_var_metadata(&sysctl_data->meta, task, pid, sysctl_data->payload);
+	payload = populate_cgroup_info(&sysctl_data->cgroup_data, task, payload);
+
+	populate_ancestors(task, &sysctl_data->ancestors_info);
+
+	sysctl_data->sysctl_val_length = 0;
+	sysctl_data->sysctl_path_length = 0;
+
+	size_t sysctl_val_length = bpf_probe_read_kernel_str(payload,
+							     CTL_MAXNAME, buf);
+	if (bpf_cmp_likely(sysctl_val_length, <=, CTL_MAXNAME)) {
+		sysctl_data->sysctl_val_length = sysctl_val_length;
+		payload += sysctl_val_length;
+	}
+
+	size_t sysctl_path_length =
+		bpf_probe_read_kernel_str(payload, MAX_PATH,
+					  BPF_CORE_READ(filp, f_path.dentry,
+							d_name.name));
+	if (bpf_cmp_likely(sysctl_path_length, <=, MAX_PATH)) {
+		sysctl_data->sysctl_path_length = sysctl_path_length;
+		payload += sysctl_path_length;
+	}
+
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &sysctl_data->meta);
+	unsigned long data_len = payload - (void*)sysctl_data;
+	data_len = data_len > sizeof(struct var_sysctl_data_t)
+		? sizeof(struct var_sysctl_data_t)
+		: data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, sysctl_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("tracepoint/syscalls/sys_enter_kill")
+int tracepoint__syscalls__sys_enter_kill(struct syscall_trace_enter* ctx)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+
+	bpf_stats_enter(&stats_ctx, profiler_bpf_sys_enter_kill);
+	int pid = ctx->args[0];
+	int sig = ctx->args[1];
+	int ret = trace_var_sys_kill(ctx, pid, sig);
+	bpf_stats_exit(&stats_ctx);
+	return ret;
+};
+
+SEC("raw_tracepoint/sched_process_exit")
+int raw_tracepoint__sched_process_exit(void* ctx)
+{
+	int zero = 0;
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_sched_process_exit);
+
+	u32 tpid = get_userspace_pid();
+
+	struct var_kill_data_arr_t* arr_struct = bpf_map_lookup_elem(&var_tpid_to_data, &tpid);
+	struct var_kill_data_t* kill_data = bpf_map_lookup_elem(&data_heap, &zero);
+
+	if (arr_struct == NULL || kill_data == NULL)
+		goto out;
+
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+	struct kernfs_node* proc_kernfs = BPF_CORE_READ(task, cgroups, dfl_cgrp, kn);
+
+#ifdef UNROLL
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < ARRAY_SIZE(arr_struct->array); i++) {
+		struct var_kill_data_t* past_kill_data = &arr_struct->array[i];
+
+		if (past_kill_data != NULL && past_kill_data->kill_target_pid == (pid_t)tpid) {
+			bpf_probe_read_kernel(kill_data, sizeof(*past_kill_data),
+					      past_kill_data);
+			void* payload = kill_data->payload;
+			size_t offset = kill_data->payload_length;
+			if (offset >= MAX_METADATA_PAYLOAD_LEN + MAX_CGROUP_PAYLOAD_LEN)
+				return 0;
+			payload += offset;
+
+			kill_data->kill_target_name_length = 0;
+			kill_data->kill_target_cgroup_proc_length = 0;
+
+			size_t comm_length = bpf_core_read_str(payload, TASK_COMM_LEN, &task->comm);
+			if (bpf_cmp_likely(comm_length, <=, TASK_COMM_LEN)) {
+				kill_data->kill_target_name_length = comm_length;
+				payload += comm_length;
+			}
+
+			size_t cgroup_proc_length =
+				bpf_probe_read_kernel_str(payload,
+							  KILL_TARGET_LEN,
+							  BPF_CORE_READ(proc_kernfs, name));
+			if (bpf_cmp_likely(cgroup_proc_length, <=, KILL_TARGET_LEN)) {
+				kill_data->kill_target_cgroup_proc_length = cgroup_proc_length;
+				payload += cgroup_proc_length;
+			}
+
+			bpf_stats_pre_submit_var_perf_event(&stats_ctx, &kill_data->meta);
+			unsigned long data_len = (void*)payload - (void*)kill_data;
+			data_len = data_len > sizeof(struct var_kill_data_t)
+				? sizeof(struct var_kill_data_t)
+				: data_len;
+			bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, kill_data, data_len);
+		}
+	}
+	bpf_map_delete_elem(&var_tpid_to_data, &tpid);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("raw_tracepoint/sched_process_exec")
+int raw_tracepoint__sched_process_exec(struct bpf_raw_tracepoint_args* ctx)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_sched_process_exec);
+
+	struct linux_binprm* bprm = (struct linux_binprm*)ctx->args[2];
+	u64 inode = BPF_CORE_READ(bprm, file, f_inode, i_ino);
+
+	bool* should_filter_binprm = bpf_map_lookup_elem(&disallowed_exec_inodes, &inode);
+	if (should_filter_binprm != NULL)
+		goto out;
+
+	int zero = 0;
+	struct var_exec_data_t* proc_exec_data = bpf_map_lookup_elem(&data_heap, &zero);
+	if (!proc_exec_data)
+		goto out;
+
+	if (INODE_FILTER && inode != INODE_FILTER)
+		return 0;
+
+	u32 pid = get_userspace_pid();
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+
+	proc_exec_data->meta.type = EXEC_EVENT;
+	proc_exec_data->bin_path_length = 0;
+	proc_exec_data->cmdline_length = 0;
+	proc_exec_data->environment_length = 0;
+	void* payload = populate_var_metadata(&proc_exec_data->meta, task, pid,
+					      proc_exec_data->payload);
+	payload = populate_cgroup_info(&proc_exec_data->cgroup_data, task, payload);
+
+	struct task_struct* parent_task = BPF_CORE_READ(task, real_parent);
+	proc_exec_data->parent_pid = BPF_CORE_READ(parent_task, tgid);
+	proc_exec_data->parent_uid = BPF_CORE_READ(parent_task, real_cred, uid.val);
+	proc_exec_data->parent_exec_id = BPF_CORE_READ(parent_task, self_exec_id);
+	proc_exec_data->parent_start_time = BPF_CORE_READ(parent_task, start_time);
+
+	const char* filename = BPF_CORE_READ(bprm, filename);
+	size_t bin_path_length =
+		bpf_probe_read_kernel_str(payload, MAX_FILENAME_LEN, filename);
+	if (bpf_cmp_likely(bin_path_length, <=, MAX_FILENAME_LEN)) {
+		proc_exec_data->bin_path_length = bin_path_length;
+		payload += bin_path_length;
+	}
+
+	void* arg_start = (void*)BPF_CORE_READ(task, mm, arg_start);
+	void* arg_end = (void*)BPF_CORE_READ(task, mm, arg_end);
+	unsigned int cmdline_length = probe_read_lim(payload, arg_start,
+						     arg_end - arg_start, MAX_ARGS_LEN);
+
+	if (bpf_cmp_likely(cmdline_length, <=, MAX_ARGS_LEN)) {
+		proc_exec_data->cmdline_length = cmdline_length;
+		payload += cmdline_length;
+	}
+
+	if (READ_ENVIRON_FROM_EXEC) {
+		void* env_start = (void*)BPF_CORE_READ(task, mm, env_start);
+		void* env_end = (void*)BPF_CORE_READ(task, mm, env_end);
+		unsigned long env_len = probe_read_lim(payload, env_start,
+						       env_end - env_start, MAX_ENVIRON_LEN);
+		if (cmdline_length <= MAX_ENVIRON_LEN) {
+			proc_exec_data->environment_length = env_len;
+			payload += env_len;
+		}
+	}
+
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &proc_exec_data->meta);
+	unsigned long data_len = payload - (void*)proc_exec_data;
+	data_len = data_len > sizeof(struct var_exec_data_t)
+		? sizeof(struct var_exec_data_t)
+		: data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, proc_exec_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("kretprobe/do_filp_open")
+int kprobe_ret__do_filp_open(struct pt_regs* ctx)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_do_filp_open_ret);
+
+	struct file* filp = (struct file*)PT_REGS_RC_CORE(ctx);
+
+	if (filp == NULL || IS_ERR(filp))
+		goto out;
+	unsigned int flags = BPF_CORE_READ(filp, f_flags);
+	if ((flags & (O_RDWR | O_WRONLY)) == 0)
+		goto out;
+	if ((flags & O_TMPFILE) > 0)
+		goto out;
+	struct inode* file_inode = BPF_CORE_READ(filp, f_inode);
+	umode_t mode = BPF_CORE_READ(file_inode, i_mode);
+	if (S_ISDIR(mode) || S_ISCHR(mode) || S_ISBLK(mode) || S_ISFIFO(mode) ||
+	    S_ISSOCK(mode))
+		goto out;
+
+	struct dentry* filp_dentry = BPF_CORE_READ(filp, f_path.dentry);
+	u32 device_id = 0;
+	u64 file_ino = 0;
+	if (!is_dentry_allowed_for_filemod(filp_dentry, &device_id, &file_ino))
+		goto out;
+
+	int zero = 0;
+	struct var_filemod_data_t* filemod_data = bpf_map_lookup_elem(&data_heap, &zero);
+	if (!filemod_data)
+		goto out;
+
+	u32 pid = get_userspace_pid();
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+
+	filemod_data->meta.type = FILEMOD_EVENT;
+	filemod_data->fmod_type = FMOD_OPEN;
+	filemod_data->dst_flags = flags;
+	filemod_data->src_inode = 0;
+	filemod_data->dst_inode = file_ino;
+	filemod_data->src_device_id = 0;
+	filemod_data->dst_device_id = device_id;
+	filemod_data->src_filepath_length = 0;
+	filemod_data->dst_filepath_length = 0;
+
+	void* payload = populate_var_metadata(&filemod_data->meta, task, pid,
+					      filemod_data->payload);
+	payload = populate_cgroup_info(&filemod_data->cgroup_data, task, payload);
+
+	size_t len = read_absolute_file_path_from_dentry(filp_dentry, payload);
+	if (bpf_cmp_likely(len, <=, MAX_FILEPATH_LENGTH)) {
+		payload += len;
+		filemod_data->dst_filepath_length = len;
+	}
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &filemod_data->meta);
+	unsigned long data_len = payload - (void*)filemod_data;
+	data_len = data_len > sizeof(*filemod_data) ? sizeof(*filemod_data) : data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, filemod_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("kprobe/vfs_link")
+int BPF_KPROBE(kprobe__vfs_link,
+	       struct dentry* old_dentry, struct mnt_idmap *idmap,
+	       struct inode* dir, struct dentry* new_dentry,
+	       struct inode** delegated_inode)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_vfs_link);
+
+	u32 src_device_id = 0;
+	u64 src_file_ino = 0;
+	u32 dst_device_id = 0;
+	u64 dst_file_ino = 0;
+	if (!is_dentry_allowed_for_filemod(old_dentry, &src_device_id, &src_file_ino) &&
+	    !is_dentry_allowed_for_filemod(new_dentry, &dst_device_id, &dst_file_ino))
+		goto out;
+
+	int zero = 0;
+	struct var_filemod_data_t* filemod_data = bpf_map_lookup_elem(&data_heap, &zero);
+	if (!filemod_data)
+		goto out;
+
+	u32 pid = get_userspace_pid();
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+
+	filemod_data->meta.type = FILEMOD_EVENT;
+	filemod_data->fmod_type = FMOD_LINK;
+	filemod_data->dst_flags = 0;
+	filemod_data->src_inode = src_file_ino;
+	filemod_data->dst_inode = dst_file_ino;
+	filemod_data->src_device_id = src_device_id;
+	filemod_data->dst_device_id = dst_device_id;
+	filemod_data->src_filepath_length = 0;
+	filemod_data->dst_filepath_length = 0;
+
+	void* payload = populate_var_metadata(&filemod_data->meta, task, pid,
+					      filemod_data->payload);
+	payload = populate_cgroup_info(&filemod_data->cgroup_data, task, payload);
+
+	size_t len = read_absolute_file_path_from_dentry(old_dentry, payload);
+	if (bpf_cmp_likely(len, <=, MAX_FILEPATH_LENGTH)) {
+		payload += len;
+		filemod_data->src_filepath_length = len;
+	}
+
+	len = read_absolute_file_path_from_dentry(new_dentry, payload);
+	if (bpf_cmp_likely(len, <=, MAX_FILEPATH_LENGTH)) {
+		payload += len;
+		filemod_data->dst_filepath_length = len;
+	}
+
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &filemod_data->meta);
+	unsigned long data_len = payload - (void*)filemod_data;
+	data_len = data_len > sizeof(*filemod_data) ? sizeof(*filemod_data) : data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, filemod_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("kprobe/vfs_symlink")
+int BPF_KPROBE(kprobe__vfs_symlink, struct inode* dir, struct dentry* dentry,
+	       const char* oldname)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_vfs_symlink);
+
+	u32 dst_device_id = 0;
+	u64 dst_file_ino = 0;
+	if (!is_dentry_allowed_for_filemod(dentry, &dst_device_id, &dst_file_ino))
+		goto out;
+
+	int zero = 0;
+	struct var_filemod_data_t* filemod_data = bpf_map_lookup_elem(&data_heap, &zero);
+	if (!filemod_data)
+		goto out;
+
+	u32 pid = get_userspace_pid();
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+
+	filemod_data->meta.type = FILEMOD_EVENT;
+	filemod_data->fmod_type = FMOD_SYMLINK;
+	filemod_data->dst_flags = 0;
+	filemod_data->src_inode = 0;
+	filemod_data->dst_inode = dst_file_ino;
+	filemod_data->src_device_id = 0;
+	filemod_data->dst_device_id = dst_device_id;
+	filemod_data->src_filepath_length = 0;
+	filemod_data->dst_filepath_length = 0;
+
+	void* payload = populate_var_metadata(&filemod_data->meta, task, pid,
+					      filemod_data->payload);
+	payload = populate_cgroup_info(&filemod_data->cgroup_data, task, payload);
+
+	size_t len = bpf_probe_read_kernel_str(payload, MAX_FILEPATH_LENGTH,
+					       oldname);
+	if (bpf_cmp_likely(len, <=, MAX_FILEPATH_LENGTH)) {
+		payload += len;
+		filemod_data->src_filepath_length = len;
+	}
+	len = read_absolute_file_path_from_dentry(dentry, payload);
+	if (bpf_cmp_likely(len, <=, MAX_FILEPATH_LENGTH)) {
+		payload += len;
+		filemod_data->dst_filepath_length = len;
+	}
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &filemod_data->meta);
+	unsigned long data_len = payload - (void*)filemod_data;
+	data_len = data_len > sizeof(*filemod_data) ? sizeof(*filemod_data) : data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, filemod_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+
+SEC("raw_tracepoint/sched_process_fork")
+int raw_tracepoint__sched_process_fork(struct bpf_raw_tracepoint_args* ctx)
+{
+	struct bpf_func_stats_ctx stats_ctx;
+	bpf_stats_enter(&stats_ctx, profiler_bpf_sched_process_fork);
+
+	int zero = 0;
+	struct var_fork_data_t* fork_data = bpf_map_lookup_elem(&data_heap, &zero);
+	if (!fork_data)
+		goto out;
+
+	struct task_struct* parent = (struct task_struct*)ctx->args[0];
+	struct task_struct* child = (struct task_struct*)ctx->args[1];
+	fork_data->meta.type = FORK_EVENT;
+
+	void* payload = populate_var_metadata(&fork_data->meta, child,
+					      BPF_CORE_READ(child, pid), fork_data->payload);
+	fork_data->parent_pid = BPF_CORE_READ(parent, pid);
+	fork_data->parent_exec_id = BPF_CORE_READ(parent, self_exec_id);
+	fork_data->parent_start_time = BPF_CORE_READ(parent, start_time);
+	bpf_stats_pre_submit_var_perf_event(&stats_ctx, &fork_data->meta);
+
+	unsigned long data_len = payload - (void*)fork_data;
+	data_len = data_len > sizeof(*fork_data) ? sizeof(*fork_data) : data_len;
+	bpf_perf_event_output(ctx, &events, BPF_F_CURRENT_CPU, fork_data, data_len);
+out:
+	bpf_stats_exit(&stats_ctx);
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/profiler1.c b/tools/testing/selftests/bpf/progs/profiler1.c
new file mode 100644
index 000000000000..fb6b13522949
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/profiler1.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define UNROLL
+#define INLINE __always_inline
+#include "profiler.inc.h"
diff --git a/tools/testing/selftests/bpf/progs/profiler2.c b/tools/testing/selftests/bpf/progs/profiler2.c
new file mode 100644
index 000000000000..0f32a3cbf556
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/profiler2.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define barrier_var(var) /**/
+/* undef #define UNROLL */
+#define INLINE /**/
+#include "profiler.inc.h"
diff --git a/tools/testing/selftests/bpf/progs/profiler3.c b/tools/testing/selftests/bpf/progs/profiler3.c
new file mode 100644
index 000000000000..6249fc31ccb0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/profiler3.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define barrier_var(var) /**/
+#define UNROLL
+#define INLINE __noinline
+#include "profiler.inc.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf.h b/tools/testing/selftests/bpf/progs/pyperf.h
new file mode 100644
index 000000000000..86484f07e1d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf.h
@@ -0,0 +1,358 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/sched.h>
+#include <linux/ptrace.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_compiler.h"
+
+#define FUNCTION_NAME_LEN 64
+#define FILE_NAME_LEN 128
+#define TASK_COMM_LEN 16
+
+typedef struct {
+	int PyThreadState_frame;
+	int PyThreadState_thread;
+	int PyFrameObject_back;
+	int PyFrameObject_code;
+	int PyFrameObject_lineno;
+	int PyCodeObject_filename;
+	int PyCodeObject_name;
+	int String_data;
+	int String_size;
+} OffsetConfig;
+
+typedef struct {
+	uintptr_t current_state_addr;
+	uintptr_t tls_key_addr;
+	OffsetConfig offsets;
+	bool use_tls;
+} PidData;
+
+typedef struct {
+	uint32_t success;
+} Stats;
+
+typedef struct {
+	char name[FUNCTION_NAME_LEN];
+	char file[FILE_NAME_LEN];
+} Symbol;
+
+typedef struct {
+	uint32_t pid;
+	uint32_t tid;
+	char comm[TASK_COMM_LEN];
+	int32_t kernel_stack_id;
+	int32_t user_stack_id;
+	bool thread_current;
+	bool pthread_match;
+	bool stack_complete;
+	int16_t stack_len;
+	int32_t stack[STACK_MAX_LEN];
+
+	int has_meta;
+	int metadata;
+	char dummy_safeguard;
+} Event;
+
+
+typedef int pid_t;
+
+typedef struct {
+	void* f_back; // PyFrameObject.f_back, previous frame
+	void* f_code; // PyFrameObject.f_code, pointer to PyCodeObject
+	void* co_filename; // PyCodeObject.co_filename
+	void* co_name; // PyCodeObject.co_name
+} FrameData;
+
+#ifdef SUBPROGS
+__noinline
+#else
+__always_inline
+#endif
+static void *get_thread_state(void *tls_base, PidData *pidData)
+{
+	void* thread_state;
+	int key;
+
+	bpf_probe_read_user(&key, sizeof(key), (void*)(long)pidData->tls_key_addr);
+	bpf_probe_read_user(&thread_state, sizeof(thread_state),
+			    tls_base + 0x310 + key * 0x10 + 0x08);
+	return thread_state;
+}
+
+static __always_inline bool get_frame_data(void *frame_ptr, PidData *pidData,
+					   FrameData *frame, Symbol *symbol)
+{
+	// read data from PyFrameObject
+	bpf_probe_read_user(&frame->f_back,
+			    sizeof(frame->f_back),
+			    frame_ptr + pidData->offsets.PyFrameObject_back);
+	bpf_probe_read_user(&frame->f_code,
+			    sizeof(frame->f_code),
+			    frame_ptr + pidData->offsets.PyFrameObject_code);
+
+	// read data from PyCodeObject
+	if (!frame->f_code)
+		return false;
+	bpf_probe_read_user(&frame->co_filename,
+			    sizeof(frame->co_filename),
+			    frame->f_code + pidData->offsets.PyCodeObject_filename);
+	bpf_probe_read_user(&frame->co_name,
+			    sizeof(frame->co_name),
+			    frame->f_code + pidData->offsets.PyCodeObject_name);
+	// read actual names into symbol
+	if (frame->co_filename)
+		bpf_probe_read_user_str(&symbol->file,
+					sizeof(symbol->file),
+					frame->co_filename +
+					pidData->offsets.String_data);
+	if (frame->co_name)
+		bpf_probe_read_user_str(&symbol->name,
+					sizeof(symbol->name),
+					frame->co_name +
+					pidData->offsets.String_data);
+	return true;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, PidData);
+} pidmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, Event);
+} eventmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, Symbol);
+	__type(value, int);
+} symbolmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, Stats);
+} statsmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, 32);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} perfmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 1000);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(long long) * 127);
+} stackmap SEC(".maps");
+
+#ifdef USE_BPF_LOOP
+struct process_frame_ctx {
+	int cur_cpu;
+	int32_t *symbol_counter;
+	void *frame_ptr;
+	FrameData *frame;
+	PidData *pidData;
+	Symbol *sym;
+	Event *event;
+	bool done;
+};
+
+static int process_frame_callback(__u32 i, struct process_frame_ctx *ctx)
+{
+	int zero = 0;
+	void *frame_ptr = ctx->frame_ptr;
+	PidData *pidData = ctx->pidData;
+	FrameData *frame = ctx->frame;
+	int32_t *symbol_counter = ctx->symbol_counter;
+	int cur_cpu = ctx->cur_cpu;
+	Event *event = ctx->event;
+	Symbol *sym = ctx->sym;
+
+	if (frame_ptr && get_frame_data(frame_ptr, pidData, frame, sym)) {
+		int32_t new_symbol_id = *symbol_counter * 64 + cur_cpu;
+		int32_t *symbol_id = bpf_map_lookup_elem(&symbolmap, sym);
+
+		if (!symbol_id) {
+			bpf_map_update_elem(&symbolmap, sym, &zero, 0);
+			symbol_id = bpf_map_lookup_elem(&symbolmap, sym);
+			if (!symbol_id) {
+				ctx->done = true;
+				return 1;
+			}
+		}
+		if (*symbol_id == new_symbol_id)
+			(*symbol_counter)++;
+
+		barrier_var(i);
+		if (i >= STACK_MAX_LEN)
+			return 1;
+
+		event->stack[i] = *symbol_id;
+
+		event->stack_len = i + 1;
+		frame_ptr = frame->f_back;
+	}
+	return 0;
+}
+#endif /* USE_BPF_LOOP */
+
+#ifdef GLOBAL_FUNC
+__noinline
+#elif defined(SUBPROGS)
+static __noinline
+#else
+static __always_inline
+#endif
+int __on_event(struct bpf_raw_tracepoint_args *ctx)
+{
+	uint64_t pid_tgid = bpf_get_current_pid_tgid();
+	pid_t pid = (pid_t)(pid_tgid >> 32);
+	PidData* pidData = bpf_map_lookup_elem(&pidmap, &pid);
+	if (!pidData)
+		return 0;
+
+	int zero = 0;
+	Event* event = bpf_map_lookup_elem(&eventmap, &zero);
+	if (!event)
+		return 0;
+
+	event->pid = pid;
+
+	event->tid = (pid_t)pid_tgid;
+	bpf_get_current_comm(&event->comm, sizeof(event->comm));
+
+	event->user_stack_id = bpf_get_stackid(ctx, &stackmap, BPF_F_USER_STACK);
+	event->kernel_stack_id = bpf_get_stackid(ctx, &stackmap, 0);
+
+	void* thread_state_current = (void*)0;
+	bpf_probe_read_user(&thread_state_current,
+			    sizeof(thread_state_current),
+			    (void*)(long)pidData->current_state_addr);
+
+	struct task_struct* task = (struct task_struct*)bpf_get_current_task();
+	void* tls_base = (void*)task;
+
+	void* thread_state = pidData->use_tls ? get_thread_state(tls_base, pidData)
+		: thread_state_current;
+	event->thread_current = thread_state == thread_state_current;
+
+	if (pidData->use_tls) {
+		uint64_t pthread_created;
+		uint64_t pthread_self;
+		bpf_probe_read_user(&pthread_self, sizeof(pthread_self),
+				    tls_base + 0x10);
+
+		bpf_probe_read_user(&pthread_created,
+				    sizeof(pthread_created),
+				    thread_state +
+				    pidData->offsets.PyThreadState_thread);
+		event->pthread_match = pthread_created == pthread_self;
+	} else {
+		event->pthread_match = 1;
+	}
+
+	if (event->pthread_match || !pidData->use_tls) {
+		void* frame_ptr;
+		FrameData frame;
+		Symbol sym = {};
+		int cur_cpu = bpf_get_smp_processor_id();
+
+		bpf_probe_read_user(&frame_ptr,
+				    sizeof(frame_ptr),
+				    thread_state +
+				    pidData->offsets.PyThreadState_frame);
+
+		int32_t* symbol_counter = bpf_map_lookup_elem(&symbolmap, &sym);
+		if (symbol_counter == NULL)
+			return 0;
+#ifdef USE_BPF_LOOP
+	struct process_frame_ctx ctx = {
+		.cur_cpu = cur_cpu,
+		.symbol_counter = symbol_counter,
+		.frame_ptr = frame_ptr,
+		.frame = &frame,
+		.pidData = pidData,
+		.sym = &sym,
+		.event = event,
+	};
+
+	bpf_loop(STACK_MAX_LEN, process_frame_callback, &ctx, 0);
+	if (ctx.done)
+		return 0;
+#else
+#if defined(USE_ITER)
+/* no for loop, no unrolling */
+#elif defined(NO_UNROLL)
+	__pragma_loop_no_unroll
+#elif defined(UNROLL_COUNT)
+	__pragma_loop_unroll_count(UNROLL_COUNT)
+#else
+	__pragma_loop_unroll_full
+#endif /* NO_UNROLL */
+		/* Unwind python stack */
+#ifdef USE_ITER
+		int i;
+		bpf_for(i, 0, STACK_MAX_LEN) {
+#else /* !USE_ITER */
+		for (int i = 0; i < STACK_MAX_LEN; ++i) {
+#endif
+			if (frame_ptr && get_frame_data(frame_ptr, pidData, &frame, &sym)) {
+				int32_t new_symbol_id = *symbol_counter * 64 + cur_cpu;
+				int32_t *symbol_id = bpf_map_lookup_elem(&symbolmap, &sym);
+				if (!symbol_id) {
+					bpf_map_update_elem(&symbolmap, &sym, &zero, 0);
+					symbol_id = bpf_map_lookup_elem(&symbolmap, &sym);
+					if (!symbol_id)
+						return 0;
+				}
+				if (*symbol_id == new_symbol_id)
+					(*symbol_counter)++;
+				event->stack[i] = *symbol_id;
+				event->stack_len = i + 1;
+				frame_ptr = frame.f_back;
+			}
+		}
+#endif /* USE_BPF_LOOP */
+		event->stack_complete = frame_ptr == NULL;
+	} else {
+		event->stack_complete = 1;
+	}
+
+	Stats* stats = bpf_map_lookup_elem(&statsmap, &zero);
+	if (stats)
+		stats->success++;
+
+	event->has_meta = 0;
+	bpf_perf_event_output(ctx, &perfmap, 0, event, offsetof(Event, metadata));
+	return 0;
+}
+
+SEC("raw_tracepoint/kfree_skb")
+int on_event(struct bpf_raw_tracepoint_args* ctx)
+{
+	int ret = 0;
+	ret |= __on_event(ctx);
+	ret |= __on_event(ctx);
+	ret |= __on_event(ctx);
+	ret |= __on_event(ctx);
+	ret |= __on_event(ctx);
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/pyperf100.c b/tools/testing/selftests/bpf/progs/pyperf100.c
new file mode 100644
index 000000000000..29786325db54
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf100.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#define STACK_MAX_LEN 100
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf180.c b/tools/testing/selftests/bpf/progs/pyperf180.c
new file mode 100644
index 000000000000..42c4a8b62e36
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf180.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#define STACK_MAX_LEN 180
+
+/* llvm upstream commit at clang18
+ *   https://github.com/llvm/llvm-project/commit/1a2e77cf9e11dbf56b5720c607313a566eebb16e
+ * changed inlining behavior and caused compilation failure as some branch
+ * target distance exceeded 16bit representation which is the maximum for
+ * cpu v1/v2/v3. Macro __BPF_CPU_VERSION__ is later implemented in clang18
+ * to specify which cpu version is used for compilation. So a smaller
+ * unroll_count can be set if __BPF_CPU_VERSION__ is less than 4, which
+ * reduced some branch target distances and resolved the compilation failure.
+ *
+ * To capture the case where a developer/ci uses clang18 but the corresponding
+ * repo checkpoint does not have __BPF_CPU_VERSION__, a smaller unroll_count
+ * will be set as well to prevent potential compilation failures.
+ */
+#ifdef __BPF_CPU_VERSION__
+#if __BPF_CPU_VERSION__ < 4
+#define UNROLL_COUNT 90
+#endif
+#elif __clang_major__ == 18
+#define UNROLL_COUNT 90
+#endif
+
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf50.c b/tools/testing/selftests/bpf/progs/pyperf50.c
new file mode 100644
index 000000000000..ef7ce340a292
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf50.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#define STACK_MAX_LEN 50
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf600.c b/tools/testing/selftests/bpf/progs/pyperf600.c
new file mode 100644
index 000000000000..ce1aa5189cc4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf600.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#define STACK_MAX_LEN 600
+/* Full unroll of 600 iterations will have total
+ * program size close to 298k insns and this may
+ * cause BPF_JMP insn out of 16-bit integer range.
+ * So limit the unroll size to 150 so the
+ * total program size is around 80k insns but
+ * the loop will still execute 600 times.
+ */
+#define UNROLL_COUNT 150
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf600_bpf_loop.c b/tools/testing/selftests/bpf/progs/pyperf600_bpf_loop.c
new file mode 100644
index 000000000000..5c2059dc01af
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf600_bpf_loop.c
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#define STACK_MAX_LEN 600
+#define USE_BPF_LOOP
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf600_iter.c b/tools/testing/selftests/bpf/progs/pyperf600_iter.c
new file mode 100644
index 000000000000..d62e1b200c30
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf600_iter.c
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+#define STACK_MAX_LEN 600
+#define SUBPROGS
+#define NO_UNROLL
+#define USE_ITER
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf600_nounroll.c b/tools/testing/selftests/bpf/progs/pyperf600_nounroll.c
new file mode 100644
index 000000000000..520b58c4f8db
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf600_nounroll.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#define STACK_MAX_LEN 600
+#define NO_UNROLL
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf_global.c b/tools/testing/selftests/bpf/progs/pyperf_global.c
new file mode 100644
index 000000000000..079e78a7562b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf_global.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define STACK_MAX_LEN 50
+#define GLOBAL_FUNC
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/pyperf_subprogs.c b/tools/testing/selftests/bpf/progs/pyperf_subprogs.c
new file mode 100644
index 000000000000..60e27a7f0cca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/pyperf_subprogs.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#define STACK_MAX_LEN 50
+#define SUBPROGS
+#include "pyperf.h"
diff --git a/tools/testing/selftests/bpf/progs/raw_tp_null.c b/tools/testing/selftests/bpf/progs/raw_tp_null.c
new file mode 100644
index 000000000000..efa416f53968
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/raw_tp_null.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int tid;
+int i;
+
+SEC("tp_btf/bpf_testmod_test_raw_tp_null_tp")
+int BPF_PROG(test_raw_tp_null, struct sk_buff *skb)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+
+	if (task->pid != tid)
+		return 0;
+
+	/* If dead code elimination kicks in, the increment +=2 will be
+	 * removed. For raw_tp programs attaching to tracepoints in kernel
+	 * modules, we mark input arguments as PTR_MAYBE_NULL, so branch
+	 * prediction should never kick in.
+	 */
+	asm volatile ("%[i] += 1; if %[ctx] != 0 goto +1; %[i] += 2;"
+			: [i]"+r"(i)
+			: [ctx]"r"(skb)
+			: "memory");
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/raw_tp_null_fail.c b/tools/testing/selftests/bpf/progs/raw_tp_null_fail.c
new file mode 100644
index 000000000000..0d58114a4955
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/raw_tp_null_fail.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Ensure module parameter has PTR_MAYBE_NULL */
+SEC("tp_btf/bpf_testmod_test_raw_tp_null_tp")
+__failure __msg("R1 invalid mem access 'trusted_ptr_or_null_'")
+int test_raw_tp_null_bpf_testmod_test_raw_tp_null_arg_1(void *ctx) {
+    asm volatile("r1 = *(u64 *)(r1 +0); r1 = *(u64 *)(r1 +0);" ::: __clobber_all);
+    return 0;
+}
+
+/* Check NULL marking */
+SEC("tp_btf/sched_pi_setprio")
+__failure __msg("R1 invalid mem access 'trusted_ptr_or_null_'")
+int test_raw_tp_null_sched_pi_setprio_arg_2(void *ctx) {
+    asm volatile("r1 = *(u64 *)(r1 +8); r1 = *(u64 *)(r1 +0);" ::: __clobber_all);
+    return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/rbtree.c b/tools/testing/selftests/bpf/progs/rbtree.c
new file mode 100644
index 000000000000..49fe93d7e059
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rbtree.c
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+struct node_data {
+	long key;
+	long data;
+	struct bpf_rb_node node;
+};
+
+struct root_nested_inner {
+	struct bpf_spin_lock glock;
+	struct bpf_rb_root root __contains(node_data, node);
+};
+
+struct root_nested {
+	struct root_nested_inner inner;
+};
+
+long less_callback_ran = -1;
+long removed_key = -1;
+long first_data[2] = {-1, -1};
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_rb_root groot __contains(node_data, node);
+private(A) struct bpf_rb_root groot_array[2] __contains(node_data, node);
+private(A) struct bpf_rb_root groot_array_one[1] __contains(node_data, node);
+private(B) struct root_nested groot_nested;
+
+static bool less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+	less_callback_ran = 1;
+
+	return node_a->key < node_b->key;
+}
+
+static long __add_three(struct bpf_rb_root *root, struct bpf_spin_lock *lock)
+{
+	struct node_data *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+	n->key = 5;
+
+	m = bpf_obj_new(typeof(*m));
+	if (!m) {
+		bpf_obj_drop(n);
+		return 2;
+	}
+	m->key = 1;
+
+	bpf_spin_lock(lock);
+	bpf_rbtree_add(root, &n->node, less);
+	bpf_rbtree_add(root, &m->node, less);
+	bpf_spin_unlock(lock);
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 3;
+	n->key = 3;
+
+	bpf_spin_lock(lock);
+	bpf_rbtree_add(root, &n->node, less);
+	bpf_spin_unlock(lock);
+	return 0;
+}
+
+SEC("tc")
+long rbtree_add_nodes(void *ctx)
+{
+	return __add_three(&groot, &glock);
+}
+
+SEC("tc")
+long rbtree_add_nodes_nested(void *ctx)
+{
+	return __add_three(&groot_nested.inner.root, &groot_nested.inner.glock);
+}
+
+SEC("tc")
+long rbtree_add_and_remove(void *ctx)
+{
+	struct bpf_rb_node *res = NULL;
+	struct node_data *n, *m = NULL;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		goto err_out;
+	n->key = 5;
+
+	m = bpf_obj_new(typeof(*m));
+	if (!m)
+		goto err_out;
+	m->key = 3;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_rbtree_add(&groot, &m->node, less);
+	res = bpf_rbtree_remove(&groot, &n->node);
+	bpf_spin_unlock(&glock);
+
+	if (!res)
+		return 1;
+
+	n = container_of(res, struct node_data, node);
+	removed_key = n->key;
+	bpf_obj_drop(n);
+
+	return 0;
+err_out:
+	if (n)
+		bpf_obj_drop(n);
+	if (m)
+		bpf_obj_drop(m);
+	return 1;
+}
+
+SEC("tc")
+long rbtree_add_and_remove_array(void *ctx)
+{
+	struct bpf_rb_node *res1 = NULL, *res2 = NULL, *res3 = NULL;
+	struct node_data *nodes[3][2] = {{NULL, NULL}, {NULL, NULL}, {NULL, NULL}};
+	struct node_data *n;
+	long k1 = -1, k2 = -1, k3 = -1;
+	int i, j;
+
+	for (i = 0; i < 3; i++) {
+		for (j = 0; j < 2; j++) {
+			nodes[i][j] = bpf_obj_new(typeof(*nodes[i][j]));
+			if (!nodes[i][j])
+				goto err_out;
+			nodes[i][j]->key = i * 2 + j;
+		}
+	}
+
+	bpf_spin_lock(&glock);
+	for (i = 0; i < 2; i++)
+		for (j = 0; j < 2; j++)
+			bpf_rbtree_add(&groot_array[i], &nodes[i][j]->node, less);
+	for (j = 0; j < 2; j++)
+		bpf_rbtree_add(&groot_array_one[0], &nodes[2][j]->node, less);
+	res1 = bpf_rbtree_remove(&groot_array[0], &nodes[0][0]->node);
+	res2 = bpf_rbtree_remove(&groot_array[1], &nodes[1][0]->node);
+	res3 = bpf_rbtree_remove(&groot_array_one[0], &nodes[2][0]->node);
+	bpf_spin_unlock(&glock);
+
+	if (res1) {
+		n = container_of(res1, struct node_data, node);
+		k1 = n->key;
+		bpf_obj_drop(n);
+	}
+	if (res2) {
+		n = container_of(res2, struct node_data, node);
+		k2 = n->key;
+		bpf_obj_drop(n);
+	}
+	if (res3) {
+		n = container_of(res3, struct node_data, node);
+		k3 = n->key;
+		bpf_obj_drop(n);
+	}
+	if (k1 != 0 || k2 != 2 || k3 != 4)
+		return 2;
+
+	return 0;
+
+err_out:
+	for (i = 0; i < 3; i++) {
+		for (j = 0; j < 2; j++) {
+			if (nodes[i][j])
+				bpf_obj_drop(nodes[i][j]);
+		}
+	}
+	return 1;
+}
+
+SEC("tc")
+long rbtree_first_and_remove(void *ctx)
+{
+	struct bpf_rb_node *res = NULL;
+	struct node_data *n, *m, *o;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+	n->key = 3;
+	n->data = 4;
+
+	m = bpf_obj_new(typeof(*m));
+	if (!m)
+		goto err_out;
+	m->key = 5;
+	m->data = 6;
+
+	o = bpf_obj_new(typeof(*o));
+	if (!o)
+		goto err_out;
+	o->key = 1;
+	o->data = 2;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_rbtree_add(&groot, &m->node, less);
+	bpf_rbtree_add(&groot, &o->node, less);
+
+	res = bpf_rbtree_first(&groot);
+	if (!res) {
+		bpf_spin_unlock(&glock);
+		return 2;
+	}
+
+	o = container_of(res, struct node_data, node);
+	first_data[0] = o->data;
+
+	res = bpf_rbtree_remove(&groot, &o->node);
+	bpf_spin_unlock(&glock);
+
+	if (!res)
+		return 5;
+
+	o = container_of(res, struct node_data, node);
+	removed_key = o->key;
+	bpf_obj_drop(o);
+
+	bpf_spin_lock(&glock);
+	res = bpf_rbtree_first(&groot);
+	if (!res) {
+		bpf_spin_unlock(&glock);
+		return 3;
+	}
+
+	o = container_of(res, struct node_data, node);
+	first_data[1] = o->data;
+	bpf_spin_unlock(&glock);
+
+	return 0;
+err_out:
+	if (n)
+		bpf_obj_drop(n);
+	if (m)
+		bpf_obj_drop(m);
+	return 1;
+}
+
+SEC("tc")
+long rbtree_api_release_aliasing(void *ctx)
+{
+	struct node_data *n, *m, *o;
+	struct bpf_rb_node *res, *res2;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+	n->key = 41;
+	n->data = 42;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_spin_unlock(&glock);
+
+	bpf_spin_lock(&glock);
+
+	/* m and o point to the same node,
+	 * but verifier doesn't know this
+	 */
+	res = bpf_rbtree_first(&groot);
+	if (!res)
+		goto err_out;
+	o = container_of(res, struct node_data, node);
+
+	res = bpf_rbtree_first(&groot);
+	if (!res)
+		goto err_out;
+	m = container_of(res, struct node_data, node);
+
+	res = bpf_rbtree_remove(&groot, &m->node);
+	/* Retval of previous remove returns an owning reference to m,
+	 * which is the same node non-owning ref o is pointing at.
+	 * We can safely try to remove o as the second rbtree_remove will
+	 * return NULL since the node isn't in a tree.
+	 *
+	 * Previously we relied on the verifier type system + rbtree_remove
+	 * invalidating non-owning refs to ensure that rbtree_remove couldn't
+	 * fail, but now rbtree_remove does runtime checking so we no longer
+	 * invalidate non-owning refs after remove.
+	 */
+	res2 = bpf_rbtree_remove(&groot, &o->node);
+
+	bpf_spin_unlock(&glock);
+
+	if (res) {
+		o = container_of(res, struct node_data, node);
+		first_data[0] = o->data;
+		bpf_obj_drop(o);
+	}
+	if (res2) {
+		/* The second remove fails, so res2 is null and this doesn't
+		 * execute
+		 */
+		m = container_of(res2, struct node_data, node);
+		first_data[1] = m->data;
+		bpf_obj_drop(m);
+	}
+	return 0;
+
+err_out:
+	bpf_spin_unlock(&glock);
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/rbtree_btf_fail__add_wrong_type.c b/tools/testing/selftests/bpf/progs/rbtree_btf_fail__add_wrong_type.c
new file mode 100644
index 000000000000..60079b202c07
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rbtree_btf_fail__add_wrong_type.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+struct node_data {
+	int key;
+	int data;
+	struct bpf_rb_node node;
+};
+
+struct node_data2 {
+	int key;
+	struct bpf_rb_node node;
+	int data;
+};
+
+static bool less2(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data2 *node_a;
+	struct node_data2 *node_b;
+
+	node_a = container_of(a, struct node_data2, node);
+	node_b = container_of(b, struct node_data2, node);
+
+	return node_a->key < node_b->key;
+}
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_rb_root groot __contains(node_data, node);
+
+SEC("tc")
+long rbtree_api_add__add_wrong_type(void *ctx)
+{
+	struct node_data2 *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less2);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/rbtree_btf_fail__wrong_node_type.c b/tools/testing/selftests/bpf/progs/rbtree_btf_fail__wrong_node_type.c
new file mode 100644
index 000000000000..7651843f5a80
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rbtree_btf_fail__wrong_node_type.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+/* BTF load should fail as bpf_rb_root __contains this type and points to
+ * 'node', but 'node' is not a bpf_rb_node
+ */
+struct node_data {
+	int key;
+	int data;
+	struct bpf_list_node node;
+};
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_rb_root groot __contains(node_data, node);
+
+SEC("tc")
+long rbtree_api_add__wrong_node_type(void *ctx)
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_first(&groot);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/rbtree_fail.c b/tools/testing/selftests/bpf/progs/rbtree_fail.c
new file mode 100644
index 000000000000..4acb6af2dfe3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rbtree_fail.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+struct node_data {
+	long key;
+	long data;
+	struct bpf_rb_node node;
+};
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_rb_root groot __contains(node_data, node);
+private(A) struct bpf_rb_root groot2 __contains(node_data, node);
+
+static bool less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+
+	return node_a->key < node_b->key;
+}
+
+SEC("?tc")
+__failure __msg("bpf_spin_lock at off=16 must be held for bpf_rb_root")
+long rbtree_api_nolock_add(void *ctx)
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_rbtree_add(&groot, &n->node, less);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("bpf_spin_lock at off=16 must be held for bpf_rb_root")
+long rbtree_api_nolock_remove(void *ctx)
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_spin_unlock(&glock);
+
+	bpf_rbtree_remove(&groot, &n->node);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("bpf_spin_lock at off=16 must be held for bpf_rb_root")
+long rbtree_api_nolock_first(void *ctx)
+{
+	bpf_rbtree_first(&groot);
+	return 0;
+}
+
+SEC("?tc")
+__retval(0)
+long rbtree_api_remove_unadded_node(void *ctx)
+{
+	struct node_data *n, *m;
+	struct bpf_rb_node *res_n, *res_m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	m = bpf_obj_new(typeof(*m));
+	if (!m) {
+		bpf_obj_drop(n);
+		return 1;
+	}
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+
+	res_n = bpf_rbtree_remove(&groot, &n->node);
+
+	res_m = bpf_rbtree_remove(&groot, &m->node);
+	bpf_spin_unlock(&glock);
+
+	bpf_obj_drop(m);
+	if (res_n)
+		bpf_obj_drop(container_of(res_n, struct node_data, node));
+	if (res_m) {
+		bpf_obj_drop(container_of(res_m, struct node_data, node));
+		/* m was not added to the rbtree */
+		return 2;
+	}
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference id=3 alloc_insn={{[0-9]+}}")
+long rbtree_api_remove_no_drop(void *ctx)
+{
+	struct bpf_rb_node *res;
+	struct node_data *n;
+
+	bpf_spin_lock(&glock);
+	res = bpf_rbtree_first(&groot);
+	if (!res)
+		goto unlock_err;
+
+	res = bpf_rbtree_remove(&groot, res);
+
+	if (res) {
+		n = container_of(res, struct node_data, node);
+		__sink(n);
+	}
+	bpf_spin_unlock(&glock);
+
+	/* if (res) { bpf_obj_drop(n); } is missing here */
+	return 0;
+
+unlock_err:
+	bpf_spin_unlock(&glock);
+	return 1;
+}
+
+SEC("?tc")
+__failure __msg("arg#1 expected pointer to allocated object")
+long rbtree_api_add_to_multiple_trees(void *ctx)
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+
+	/* This add should fail since n already in groot's tree */
+	bpf_rbtree_add(&groot2, &n->node, less);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("dereference of modified ptr_or_null_ ptr R2 off=16 disallowed")
+long rbtree_api_use_unchecked_remove_retval(void *ctx)
+{
+	struct bpf_rb_node *res;
+
+	bpf_spin_lock(&glock);
+
+	res = bpf_rbtree_first(&groot);
+	if (!res)
+		goto err_out;
+	res = bpf_rbtree_remove(&groot, res);
+
+	bpf_spin_unlock(&glock);
+
+	bpf_spin_lock(&glock);
+	/* Must check res for NULL before using in rbtree_add below */
+	bpf_rbtree_add(&groot, res, less);
+	bpf_spin_unlock(&glock);
+	return 0;
+
+err_out:
+	bpf_spin_unlock(&glock);
+	return 1;
+}
+
+SEC("?tc")
+__failure __msg("bpf_rbtree_remove can only take non-owning or refcounted bpf_rb_node pointer")
+long rbtree_api_add_release_unlock_escape(void *ctx)
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_spin_unlock(&glock);
+
+	bpf_spin_lock(&glock);
+	/* After add() in previous critical section, n should be
+	 * release_on_unlock and released after previous spin_unlock,
+	 * so should not be possible to use it here
+	 */
+	bpf_rbtree_remove(&groot, &n->node);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("bpf_rbtree_remove can only take non-owning or refcounted bpf_rb_node pointer")
+long rbtree_api_first_release_unlock_escape(void *ctx)
+{
+	struct bpf_rb_node *res;
+	struct node_data *n;
+
+	bpf_spin_lock(&glock);
+	res = bpf_rbtree_first(&groot);
+	if (!res) {
+		bpf_spin_unlock(&glock);
+		return 1;
+	}
+	n = container_of(res, struct node_data, node);
+	bpf_spin_unlock(&glock);
+
+	bpf_spin_lock(&glock);
+	/* After first() in previous critical section, n should be
+	 * release_on_unlock and released after previous spin_unlock,
+	 * so should not be possible to use it here
+	 */
+	bpf_rbtree_remove(&groot, &n->node);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+static bool less__bad_fn_call_add(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+	bpf_rbtree_add(&groot, &node_a->node, less);
+
+	return node_a->key < node_b->key;
+}
+
+static bool less__bad_fn_call_remove(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+	bpf_rbtree_remove(&groot, &node_a->node);
+
+	return node_a->key < node_b->key;
+}
+
+static bool less__bad_fn_call_first_unlock_after(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = container_of(a, struct node_data, node);
+	node_b = container_of(b, struct node_data, node);
+	bpf_rbtree_first(&groot);
+	bpf_spin_unlock(&glock);
+
+	return node_a->key < node_b->key;
+}
+
+static __always_inline
+long add_with_cb(bool (cb)(struct bpf_rb_node *a, const struct bpf_rb_node *b))
+{
+	struct node_data *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, cb);
+	bpf_spin_unlock(&glock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("arg#1 expected pointer to allocated object")
+long rbtree_api_add_bad_cb_bad_fn_call_add(void *ctx)
+{
+	return add_with_cb(less__bad_fn_call_add);
+}
+
+SEC("?tc")
+__failure __msg("rbtree_remove not allowed in rbtree cb")
+long rbtree_api_add_bad_cb_bad_fn_call_remove(void *ctx)
+{
+	return add_with_cb(less__bad_fn_call_remove);
+}
+
+SEC("?tc")
+__failure __msg("can't spin_{lock,unlock} in rbtree cb")
+long rbtree_api_add_bad_cb_bad_fn_call_first_unlock_after(void *ctx)
+{
+	return add_with_cb(less__bad_fn_call_first_unlock_after);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/rbtree_search.c b/tools/testing/selftests/bpf/progs/rbtree_search.c
new file mode 100644
index 000000000000..b05565d1db0d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rbtree_search.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct node_data {
+	struct bpf_refcount ref;
+	struct bpf_rb_node r0;
+	struct bpf_rb_node r1;
+	int key0;
+	int key1;
+};
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock0;
+private(A) struct bpf_rb_root groot0 __contains(node_data, r0);
+
+private(B) struct bpf_spin_lock glock1;
+private(B) struct bpf_rb_root groot1 __contains(node_data, r1);
+
+#define rb_entry(ptr, type, member) container_of(ptr, type, member)
+#define NR_NODES 16
+
+int zero = 0;
+
+static bool less0(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = rb_entry(a, struct node_data, r0);
+	node_b = rb_entry(b, struct node_data, r0);
+
+	return node_a->key0 < node_b->key0;
+}
+
+static bool less1(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_data *node_a;
+	struct node_data *node_b;
+
+	node_a = rb_entry(a, struct node_data, r1);
+	node_b = rb_entry(b, struct node_data, r1);
+
+	return node_a->key1 < node_b->key1;
+}
+
+SEC("syscall")
+__retval(0)
+long rbtree_search(void *ctx)
+{
+	struct bpf_rb_node *rb_n, *rb_m, *gc_ns[NR_NODES];
+	long lookup_key = NR_NODES / 2;
+	struct node_data *n, *m;
+	int i, nr_gc = 0;
+
+	for (i = zero; i < NR_NODES && can_loop; i++) {
+		n = bpf_obj_new(typeof(*n));
+		if (!n)
+			return __LINE__;
+
+		m = bpf_refcount_acquire(n);
+
+		n->key0 = i;
+		m->key1 = i;
+
+		bpf_spin_lock(&glock0);
+		bpf_rbtree_add(&groot0, &n->r0, less0);
+		bpf_spin_unlock(&glock0);
+
+		bpf_spin_lock(&glock1);
+		bpf_rbtree_add(&groot1, &m->r1, less1);
+		bpf_spin_unlock(&glock1);
+	}
+
+	n = NULL;
+	bpf_spin_lock(&glock0);
+	rb_n = bpf_rbtree_root(&groot0);
+	while (can_loop) {
+		if (!rb_n) {
+			bpf_spin_unlock(&glock0);
+			return __LINE__;
+		}
+
+		n = rb_entry(rb_n, struct node_data, r0);
+		if (lookup_key == n->key0)
+			break;
+		if (nr_gc < NR_NODES)
+			gc_ns[nr_gc++] = rb_n;
+		if (lookup_key < n->key0)
+			rb_n = bpf_rbtree_left(&groot0, rb_n);
+		else
+			rb_n = bpf_rbtree_right(&groot0, rb_n);
+	}
+
+	if (!n || lookup_key != n->key0) {
+		bpf_spin_unlock(&glock0);
+		return __LINE__;
+	}
+
+	for (i = 0; i < nr_gc; i++) {
+		rb_n = gc_ns[i];
+		gc_ns[i] = bpf_rbtree_remove(&groot0, rb_n);
+	}
+
+	m = bpf_refcount_acquire(n);
+	bpf_spin_unlock(&glock0);
+
+	for (i = 0; i < nr_gc; i++) {
+		rb_n = gc_ns[i];
+		if (rb_n) {
+			n = rb_entry(rb_n, struct node_data, r0);
+			bpf_obj_drop(n);
+		}
+	}
+
+	if (!m)
+		return __LINE__;
+
+	bpf_spin_lock(&glock1);
+	rb_m = bpf_rbtree_remove(&groot1, &m->r1);
+	bpf_spin_unlock(&glock1);
+	bpf_obj_drop(m);
+	if (!rb_m)
+		return __LINE__;
+	bpf_obj_drop(rb_entry(rb_m, struct node_data, r1));
+
+	return 0;
+}
+
+#define TEST_ROOT(dolock)				\
+SEC("syscall")						\
+__failure __msg(MSG)					\
+long test_root_spinlock_##dolock(void *ctx)		\
+{							\
+	struct bpf_rb_node *rb_n;			\
+	__u64 jiffies = 0;				\
+							\
+	if (dolock)					\
+		bpf_spin_lock(&glock0);			\
+	rb_n = bpf_rbtree_root(&groot0);		\
+	if (rb_n)					\
+		jiffies = bpf_jiffies64();		\
+	if (dolock)					\
+		bpf_spin_unlock(&glock0);		\
+							\
+	return !!jiffies;				\
+}
+
+#define TEST_LR(op, dolock)				\
+SEC("syscall")						\
+__failure __msg(MSG)					\
+long test_##op##_spinlock_##dolock(void *ctx)		\
+{							\
+	struct bpf_rb_node *rb_n;			\
+	struct node_data *n;				\
+	__u64 jiffies = 0;				\
+							\
+	bpf_spin_lock(&glock0);				\
+	rb_n = bpf_rbtree_root(&groot0);		\
+	if (!rb_n) {					\
+		bpf_spin_unlock(&glock0);		\
+		return 1;				\
+	}						\
+	n = rb_entry(rb_n, struct node_data, r0);	\
+	n = bpf_refcount_acquire(n);			\
+	bpf_spin_unlock(&glock0);			\
+	if (!n)						\
+		return 1;				\
+							\
+	if (dolock)					\
+		bpf_spin_lock(&glock0);			\
+	rb_n = bpf_rbtree_##op(&groot0, &n->r0);	\
+	if (rb_n)					\
+		jiffies = bpf_jiffies64();		\
+	if (dolock)					\
+		bpf_spin_unlock(&glock0);		\
+							\
+	return !!jiffies;				\
+}
+
+/*
+ * Use a separate MSG macro instead of passing to TEST_XXX(..., MSG)
+ * to ensure the message itself is not in the bpf prog lineinfo
+ * which the verifier includes in its log.
+ * Otherwise, the test_loader will incorrectly match the prog lineinfo
+ * instead of the log generated by the verifier.
+ */
+#define MSG "call bpf_rbtree_root{{.+}}; R0{{(_w)?}}=rcu_ptr_or_null_node_data(id={{[0-9]+}},non_own_ref"
+TEST_ROOT(true)
+#undef MSG
+#define MSG "call bpf_rbtree_{{(left|right).+}}; R0{{(_w)?}}=rcu_ptr_or_null_node_data(id={{[0-9]+}},non_own_ref"
+TEST_LR(left,  true)
+TEST_LR(right, true)
+#undef MSG
+
+#define MSG "bpf_spin_lock at off=0 must be held for bpf_rb_root"
+TEST_ROOT(false)
+TEST_LR(left, false)
+TEST_LR(right, false)
+#undef MSG
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/rcu_read_lock.c b/tools/testing/selftests/bpf/progs/rcu_read_lock.c
new file mode 100644
index 000000000000..d70c28824bbe
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rcu_read_lock.c
@@ -0,0 +1,541 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_tracing_net.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+__u32 user_data, target_pid;
+__s32 key_serial;
+__u64 flags, task_storage_val, cgroup_id;
+
+struct bpf_key *bpf_lookup_user_key(__s32 serial, __u64 flags) __ksym;
+void bpf_key_put(struct bpf_key *key) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int get_cgroup_id(void *ctx)
+{
+	struct task_struct *task;
+	struct css_set *cgroups;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	/* simulate bpf_get_current_cgroup_id() helper */
+	bpf_rcu_read_lock();
+	cgroups = task->cgroups;
+	if (!cgroups)
+		goto unlock;
+	cgroup_id = cgroups->dfl_cgrp->kn->id;
+unlock:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int task_succ(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+	long init_val = 2;
+	long *ptr;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	bpf_rcu_read_lock();
+	/* region including helper using rcu ptr real_parent */
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	ptr = bpf_task_storage_get(&map_a, real_parent, &init_val,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		goto out;
+	ptr = bpf_task_storage_get(&map_a, real_parent, 0, 0);
+	if (!ptr)
+		goto out;
+	task_storage_val = *ptr;
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int no_lock(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* old style ptr_to_btf_id is not allowed in sleepable */
+	task = bpf_get_current_task_btf();
+	real_parent = task->real_parent;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int two_regions(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* two regions */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_getpgid")
+int non_sleepable_1(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_getpgid")
+int non_sleepable_2(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	bpf_rcu_read_lock();
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_unlock();
+
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int task_acquire(void *ctx)
+{
+	struct task_struct *task, *real_parent, *gparent;
+
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+
+	/* rcu_ptr->rcu_field */
+	gparent = real_parent->real_parent;
+	if (!gparent)
+		goto out;
+
+	/* acquire a reference which can be used outside rcu read lock region */
+	gparent = bpf_task_acquire(gparent);
+	if (!gparent)
+		goto out;
+
+	(void)bpf_task_storage_get(&map_a, gparent, 0, 0);
+	bpf_task_release(gparent);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int miss_lock(void *ctx)
+{
+	struct task_struct *task;
+
+	/* missing bpf_rcu_read_lock() */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	(void)bpf_task_storage_get(&map_a, task, 0, 0);
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int miss_unlock(void *ctx)
+{
+	struct task_struct *task;
+
+	/* missing bpf_rcu_read_unlock() */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	(void)bpf_task_storage_get(&map_a, task, 0, 0);
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_getpgid")
+int non_sleepable_rcu_mismatch(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	task = bpf_get_current_task_btf();
+	/* non-sleepable: missing bpf_rcu_read_unlock() in one path */
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+	if (real_parent)
+		bpf_rcu_read_unlock();
+out:
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int inproper_sleepable_helper(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+	struct pt_regs *regs;
+	__u32 value = 0;
+	void *ptr;
+
+	task = bpf_get_current_task_btf();
+	/* sleepable helper in rcu read lock region */
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	regs = (struct pt_regs *)bpf_task_pt_regs(real_parent);
+	if (!regs)
+		goto out;
+
+	ptr = (void *)PT_REGS_IP(regs);
+	(void)bpf_copy_from_user_task(&value, sizeof(uint32_t), ptr, task, 0);
+	user_data = value;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?lsm.s/bpf")
+int BPF_PROG(inproper_sleepable_kfunc, int cmd, union bpf_attr *attr, unsigned int size,
+	     bool kernel)
+{
+	struct bpf_key *bkey;
+
+	/* sleepable kfunc in rcu read lock region */
+	bpf_rcu_read_lock();
+	bkey = bpf_lookup_user_key(key_serial, flags);
+	bpf_rcu_read_unlock();
+	if (!bkey)
+		return -1;
+	bpf_key_put(bkey);
+
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int nested_rcu_region(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* nested rcu read lock regions */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int nested_rcu_region_unbalanced_1(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* nested rcu read lock regions */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int nested_rcu_region_unbalanced_2(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* nested rcu read lock regions */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	bpf_rcu_read_lock();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	if (!real_parent)
+		goto out;
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+out:
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int task_trusted_non_rcuptr(void *ctx)
+{
+	struct task_struct *task, *group_leader;
+
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	/* the pointer group_leader is explicitly marked as trusted */
+	group_leader = task->real_parent->group_leader;
+	(void)bpf_task_storage_get(&map_a, group_leader, 0, 0);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int task_untrusted_rcuptr(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	bpf_rcu_read_unlock();
+	/* helper use of rcu ptr outside the rcu read lock region */
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_nanosleep")
+int cross_rcu_region(void *ctx)
+{
+	struct task_struct *task, *real_parent;
+
+	/* rcu ptr define/use in different regions */
+	task = bpf_get_current_task_btf();
+	bpf_rcu_read_lock();
+	real_parent = task->real_parent;
+	bpf_rcu_read_unlock();
+	bpf_rcu_read_lock();
+	(void)bpf_task_storage_get(&map_a, real_parent, 0, 0);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+__noinline
+static int static_subprog(void *ctx)
+{
+	volatile int ret = 0;
+
+	if (bpf_get_prandom_u32())
+		return ret + 42;
+	return ret + bpf_get_prandom_u32();
+}
+
+__noinline
+int global_subprog(u64 a)
+{
+	volatile int ret = a;
+
+	return ret + static_subprog(NULL);
+}
+
+__noinline
+static int static_subprog_lock(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	if (bpf_get_prandom_u32())
+		return ret + 42;
+	return ret + bpf_get_prandom_u32();
+}
+
+__noinline
+int global_subprog_lock(u64 a)
+{
+	volatile int ret = a;
+
+	return ret + static_subprog_lock(NULL);
+}
+
+__noinline
+static int static_subprog_unlock(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_unlock();
+	if (bpf_get_prandom_u32())
+		return ret + 42;
+	return ret + bpf_get_prandom_u32();
+}
+
+__noinline
+int global_subprog_unlock(u64 a)
+{
+	volatile int ret = a;
+
+	return ret + static_subprog_unlock(NULL);
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_subprog(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	if (bpf_get_prandom_u32())
+		ret += static_subprog(ctx);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_global_subprog(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	if (bpf_get_prandom_u32())
+		ret += global_subprog(ret);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_subprog_lock(void *ctx)
+{
+	volatile int ret = 0;
+
+	ret += static_subprog_lock(ctx);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_global_subprog_lock(void *ctx)
+{
+	volatile int ret = 0;
+
+	ret += global_subprog_lock(ret);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_subprog_unlock(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	ret += static_subprog_unlock(ctx);
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_global_subprog_unlock(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	ret += global_subprog_unlock(ret);
+	return 0;
+}
+
+int __noinline
+global_sleepable_helper_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+int __noinline
+global_sleepable_kfunc_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user_str(&i, sizeof(i), NULL, 0);
+	global_subprog(i);
+	return i;
+}
+
+int __noinline
+global_subprog_calling_sleepable_global(int i)
+{
+	if (!i)
+		global_sleepable_kfunc_subprog(i);
+	return i;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_sleepable_helper_global_subprog(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	ret += global_sleepable_helper_subprog(ret);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_sleepable_kfunc_global_subprog(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	ret += global_sleepable_kfunc_subprog(ret);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?fentry.s/" SYS_PREFIX "sys_getpgid")
+int rcu_read_lock_sleepable_global_subprog_indirect(void *ctx)
+{
+	volatile int ret = 0;
+
+	bpf_rcu_read_lock();
+	ret += global_subprog_calling_sleepable_global(ret);
+	bpf_rcu_read_unlock();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/rcu_tasks_trace_gp.c b/tools/testing/selftests/bpf/progs/rcu_tasks_trace_gp.c
new file mode 100644
index 000000000000..df4873558634
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/rcu_tasks_trace_gp.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct task_ls_map {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} task_ls_map SEC(".maps");
+
+long gp_seq;
+
+SEC("syscall")
+int do_call_rcu_tasks_trace(void *ctx)
+{
+    struct task_struct *current;
+    int *v;
+
+    current = bpf_get_current_task_btf();
+    v = bpf_task_storage_get(&task_ls_map, current, NULL, BPF_LOCAL_STORAGE_GET_F_CREATE);
+    if (!v)
+        return 1;
+    /* Invoke call_rcu_tasks_trace */
+    return bpf_task_storage_delete(&task_ls_map, current);
+}
+
+SEC("kprobe/rcu_tasks_trace_postgp")
+int rcu_tasks_trace_postgp(void *ctx)
+{
+    __sync_add_and_fetch(&gp_seq, 1);
+    return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/read_bpf_task_storage_busy.c b/tools/testing/selftests/bpf/progs/read_bpf_task_storage_busy.c
new file mode 100644
index 000000000000..69da05bb6c63
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/read_bpf_task_storage_busy.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022. Huawei Technologies Co., Ltd */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+extern bool CONFIG_PREEMPTION __kconfig __weak;
+extern const int bpf_task_storage_busy __ksym;
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+int busy = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} task SEC(".maps");
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(read_bpf_task_storage_busy)
+{
+	int *value;
+
+	if (!CONFIG_PREEMPTION)
+		return 0;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	value = bpf_this_cpu_ptr(&bpf_task_storage_busy);
+	if (value)
+		busy = *value;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/read_cgroupfs_xattr.c b/tools/testing/selftests/bpf/progs/read_cgroupfs_xattr.c
new file mode 100644
index 000000000000..405adbe5e8b0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/read_cgroupfs_xattr.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+pid_t target_pid = 0;
+
+char xattr_value[64];
+static const char expected_value_a[] = "bpf_selftest_value_a";
+static const char expected_value_b[] = "bpf_selftest_value_b";
+bool found_value_a;
+bool found_value_b;
+
+SEC("lsm.s/file_open")
+int BPF_PROG(test_file_open)
+{
+	u64 cgrp_id = bpf_get_current_cgroup_id();
+	struct cgroup_subsys_state *css, *tmp;
+	struct bpf_dynptr value_ptr;
+	struct cgroup *cgrp;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != target_pid)
+		return 0;
+
+	bpf_rcu_read_lock();
+	cgrp = bpf_cgroup_from_id(cgrp_id);
+	if (!cgrp) {
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+
+	css = &cgrp->self;
+	bpf_dynptr_from_mem(xattr_value, sizeof(xattr_value), 0, &value_ptr);
+	bpf_for_each(css, tmp, css, BPF_CGROUP_ITER_ANCESTORS_UP) {
+		int ret;
+
+		ret = bpf_cgroup_read_xattr(tmp->cgroup, "user.bpf_test",
+					    &value_ptr);
+		if (ret < 0)
+			continue;
+
+		if (ret == sizeof(expected_value_a) &&
+		    !bpf_strncmp(xattr_value, sizeof(expected_value_a), expected_value_a))
+			found_value_a = true;
+		if (ret == sizeof(expected_value_b) &&
+		    !bpf_strncmp(xattr_value, sizeof(expected_value_b), expected_value_b))
+			found_value_b = true;
+	}
+
+	bpf_rcu_read_unlock();
+	bpf_cgroup_release(cgrp);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/read_vsyscall.c b/tools/testing/selftests/bpf/progs/read_vsyscall.c
new file mode 100644
index 000000000000..395591374d4f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/read_vsyscall.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2024. Huawei Technologies Co., Ltd */
+#include "vmlinux.h"
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+int target_pid = 0;
+void *user_ptr = 0;
+int read_ret[10];
+
+char _license[] SEC("license") = "GPL";
+
+/*
+ * These are the kfuncs, the others are helpers
+ */
+int bpf_copy_from_user_str(void *dst, u32, const void *, u64) __weak __ksym;
+int bpf_copy_from_user_task_str(void *dst, u32, const void *,
+				struct task_struct *, u64) __weak __ksym;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int do_probe_read(void *ctx)
+{
+	char buf[8];
+
+	if ((bpf_get_current_pid_tgid() >> 32) != target_pid)
+		return 0;
+
+	read_ret[0] = bpf_probe_read_kernel(buf, sizeof(buf), user_ptr);
+	read_ret[1] = bpf_probe_read_kernel_str(buf, sizeof(buf), user_ptr);
+	read_ret[2] = bpf_probe_read(buf, sizeof(buf), user_ptr);
+	read_ret[3] = bpf_probe_read_str(buf, sizeof(buf), user_ptr);
+	read_ret[4] = bpf_probe_read_user(buf, sizeof(buf), user_ptr);
+	read_ret[5] = bpf_probe_read_user_str(buf, sizeof(buf), user_ptr);
+
+	return 0;
+}
+
+SEC("fentry.s/" SYS_PREFIX "sys_nanosleep")
+int do_copy_from_user(void *ctx)
+{
+	char buf[8];
+
+	if ((bpf_get_current_pid_tgid() >> 32) != target_pid)
+		return 0;
+
+	read_ret[6] = bpf_copy_from_user(buf, sizeof(buf), user_ptr);
+	read_ret[7] = bpf_copy_from_user_task(buf, sizeof(buf), user_ptr,
+					      bpf_get_current_task_btf(), 0);
+	read_ret[8] = bpf_copy_from_user_str((char *)buf, sizeof(buf), user_ptr, 0);
+	read_ret[9] = bpf_copy_from_user_task_str((char *)buf,
+						  sizeof(buf),
+						  user_ptr,
+						  bpf_get_current_task_btf(),
+						  0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/recursion.c b/tools/testing/selftests/bpf/progs/recursion.c
new file mode 100644
index 000000000000..3c2423bb19e2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/recursion.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, long);
+} hash1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, long);
+} hash2 SEC(".maps");
+
+int pass1 = 0;
+int pass2 = 0;
+
+SEC("fentry/htab_map_delete_elem")
+int BPF_PROG(on_delete, struct bpf_map *map)
+{
+	int key = 0;
+
+	if (map == (void *)&hash1) {
+		pass1++;
+		return 0;
+	}
+	if (map == (void *)&hash2) {
+		pass2++;
+		bpf_map_delete_elem(&hash2, &key);
+		return 0;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/recvmsg4_prog.c b/tools/testing/selftests/bpf/progs/recvmsg4_prog.c
new file mode 100644
index 000000000000..59748c95471a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/recvmsg4_prog.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+#define SERV4_IP		0xc0a801feU /* 192.168.1.254 */
+#define SERV4_PORT		4040
+
+SEC("cgroup/recvmsg4")
+int recvmsg4_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock *sk;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	if (sk->family != AF_INET)
+		return 1;
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 1;
+
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	ctx->user_ip4 = bpf_htonl(SERV4_IP);
+	ctx->user_port = bpf_htons(SERV4_PORT);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/recvmsg6_prog.c b/tools/testing/selftests/bpf/progs/recvmsg6_prog.c
new file mode 100644
index 000000000000..d9a4016596d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/recvmsg6_prog.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <linux/in6.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+#define SERV6_IP_0		0xfaceb00c /* face:b00c:1234:5678::abcd */
+#define SERV6_IP_1		0x12345678
+#define SERV6_IP_2		0x00000000
+#define SERV6_IP_3		0x0000abcd
+#define SERV6_PORT		6060
+
+SEC("cgroup/recvmsg6")
+int recvmsg6_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock *sk;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	if (sk->family != AF_INET6)
+		return 1;
+
+	if (ctx->type != SOCK_STREAM && ctx->type != SOCK_DGRAM)
+		return 1;
+
+	if (!get_set_sk_priority(ctx))
+		return 1;
+
+	ctx->user_ip6[0] = bpf_htonl(SERV6_IP_0);
+	ctx->user_ip6[1] = bpf_htonl(SERV6_IP_1);
+	ctx->user_ip6[2] = bpf_htonl(SERV6_IP_2);
+	ctx->user_ip6[3] = bpf_htonl(SERV6_IP_3);
+	ctx->user_port = bpf_htons(SERV6_PORT);
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c b/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c
new file mode 100644
index 000000000000..1c7ab44bccfa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/recvmsg_unix_prog.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+__u8 SERVUN_ADDRESS[] = "\0bpf_cgroup_unix_test";
+
+SEC("cgroup/recvmsg_unix")
+int recvmsg_unix_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx);
+	struct sockaddr_un *sa_kern_unaddr;
+	__u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) +
+			  sizeof(SERVUN_ADDRESS) - 1;
+	int ret;
+
+	ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_ADDRESS,
+					 sizeof(SERVUN_ADDRESS) - 1);
+	if (ret)
+		return 1;
+
+	if (sa_kern->uaddrlen != unaddrlen)
+		return 1;
+
+	sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
+	if (memcmp(sa_kern_unaddr->sun_path, SERVUN_ADDRESS,
+			sizeof(SERVUN_ADDRESS) - 1) != 0)
+		return 1;
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/refcounted_kptr.c b/tools/testing/selftests/bpf/progs/refcounted_kptr.c
new file mode 100644
index 000000000000..1aca85d86aeb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/refcounted_kptr.c
@@ -0,0 +1,631 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+extern void bpf_rcu_read_lock(void) __ksym;
+extern void bpf_rcu_read_unlock(void) __ksym;
+
+struct node_data {
+	long key;
+	long list_data;
+	struct bpf_rb_node r;
+	struct bpf_list_node l;
+	struct bpf_refcount ref;
+};
+
+struct map_value {
+	struct node_data __kptr *node;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 2);
+} stashed_nodes SEC(".maps");
+
+struct node_acquire {
+	long key;
+	long data;
+	struct bpf_rb_node node;
+	struct bpf_refcount refcount;
+};
+
+#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock lock;
+private(A) struct bpf_rb_root root __contains(node_data, r);
+private(A) struct bpf_list_head head __contains(node_data, l);
+
+private(B) struct bpf_spin_lock alock;
+private(B) struct bpf_rb_root aroot __contains(node_acquire, node);
+
+private(C) struct bpf_spin_lock block;
+private(C) struct bpf_rb_root broot __contains(node_data, r);
+
+static bool less(struct bpf_rb_node *node_a, const struct bpf_rb_node *node_b)
+{
+	struct node_data *a;
+	struct node_data *b;
+
+	a = container_of(node_a, struct node_data, r);
+	b = container_of(node_b, struct node_data, r);
+
+	return a->key < b->key;
+}
+
+static bool less_a(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_acquire *node_a;
+	struct node_acquire *node_b;
+
+	node_a = container_of(a, struct node_acquire, node);
+	node_b = container_of(b, struct node_acquire, node);
+
+	return node_a->key < node_b->key;
+}
+
+static long __insert_in_tree_and_list(struct bpf_list_head *head,
+				      struct bpf_rb_root *root,
+				      struct bpf_spin_lock *lock)
+{
+	struct node_data *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return -1;
+
+	m = bpf_refcount_acquire(n);
+	m->key = 123;
+	m->list_data = 456;
+
+	bpf_spin_lock(lock);
+	if (bpf_rbtree_add(root, &n->r, less)) {
+		/* Failure to insert - unexpected */
+		bpf_spin_unlock(lock);
+		bpf_obj_drop(m);
+		return -2;
+	}
+	bpf_spin_unlock(lock);
+
+	bpf_spin_lock(lock);
+	if (bpf_list_push_front(head, &m->l)) {
+		/* Failure to insert - unexpected */
+		bpf_spin_unlock(lock);
+		return -3;
+	}
+	bpf_spin_unlock(lock);
+	return 0;
+}
+
+static long __stash_map_insert_tree(int idx, int val, struct bpf_rb_root *root,
+				    struct bpf_spin_lock *lock)
+{
+	struct map_value *mapval;
+	struct node_data *n, *m;
+
+	mapval = bpf_map_lookup_elem(&stashed_nodes, &idx);
+	if (!mapval)
+		return -1;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return -2;
+
+	n->key = val;
+	m = bpf_refcount_acquire(n);
+
+	n = bpf_kptr_xchg(&mapval->node, n);
+	if (n) {
+		bpf_obj_drop(n);
+		bpf_obj_drop(m);
+		return -3;
+	}
+
+	bpf_spin_lock(lock);
+	if (bpf_rbtree_add(root, &m->r, less)) {
+		/* Failure to insert - unexpected */
+		bpf_spin_unlock(lock);
+		return -4;
+	}
+	bpf_spin_unlock(lock);
+	return 0;
+}
+
+static long __read_from_tree(struct bpf_rb_root *root,
+			     struct bpf_spin_lock *lock,
+			     bool remove_from_tree)
+{
+	struct bpf_rb_node *rb;
+	struct node_data *n;
+	long res = -99;
+
+	bpf_spin_lock(lock);
+
+	rb = bpf_rbtree_first(root);
+	if (!rb) {
+		bpf_spin_unlock(lock);
+		return -1;
+	}
+
+	n = container_of(rb, struct node_data, r);
+	res = n->key;
+
+	if (!remove_from_tree) {
+		bpf_spin_unlock(lock);
+		return res;
+	}
+
+	rb = bpf_rbtree_remove(root, rb);
+	bpf_spin_unlock(lock);
+	if (!rb)
+		return -2;
+	n = container_of(rb, struct node_data, r);
+	bpf_obj_drop(n);
+	return res;
+}
+
+static long __read_from_list(struct bpf_list_head *head,
+			     struct bpf_spin_lock *lock,
+			     bool remove_from_list)
+{
+	struct bpf_list_node *l;
+	struct node_data *n;
+	long res = -99;
+
+	bpf_spin_lock(lock);
+
+	l = bpf_list_pop_front(head);
+	if (!l) {
+		bpf_spin_unlock(lock);
+		return -1;
+	}
+
+	n = container_of(l, struct node_data, l);
+	res = n->list_data;
+
+	if (!remove_from_list) {
+		if (bpf_list_push_back(head, &n->l)) {
+			bpf_spin_unlock(lock);
+			return -2;
+		}
+	}
+
+	bpf_spin_unlock(lock);
+
+	if (remove_from_list)
+		bpf_obj_drop(n);
+	return res;
+}
+
+static long __read_from_unstash(int idx)
+{
+	struct node_data *n = NULL;
+	struct map_value *mapval;
+	long val = -99;
+
+	mapval = bpf_map_lookup_elem(&stashed_nodes, &idx);
+	if (!mapval)
+		return -1;
+
+	n = bpf_kptr_xchg(&mapval->node, n);
+	if (!n)
+		return -2;
+
+	val = n->key;
+	bpf_obj_drop(n);
+	return val;
+}
+
+#define INSERT_READ_BOTH(rem_tree, rem_list, desc)			\
+SEC("tc")								\
+__description(desc)							\
+__success __retval(579)							\
+long insert_and_remove_tree_##rem_tree##_list_##rem_list(void *ctx)	\
+{									\
+	long err, tree_data, list_data;					\
+									\
+	err = __insert_in_tree_and_list(&head, &root, &lock);		\
+	if (err)							\
+		return err;						\
+									\
+	err = __read_from_tree(&root, &lock, rem_tree);			\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		tree_data = err;					\
+									\
+	err = __read_from_list(&head, &lock, rem_list);			\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		list_data = err;					\
+									\
+	return tree_data + list_data;					\
+}
+
+/* After successful insert of struct node_data into both collections:
+ *   - it should have refcount = 2
+ *   - removing / not removing the node_data from a collection after
+ *     reading should have no effect on ability to read / remove from
+ *     the other collection
+ */
+INSERT_READ_BOTH(true, true, "insert_read_both: remove from tree + list");
+INSERT_READ_BOTH(false, false, "insert_read_both: remove from neither");
+INSERT_READ_BOTH(true, false, "insert_read_both: remove from tree");
+INSERT_READ_BOTH(false, true, "insert_read_both: remove from list");
+
+#undef INSERT_READ_BOTH
+#define INSERT_READ_BOTH(rem_tree, rem_list, desc)			\
+SEC("tc")								\
+__description(desc)							\
+__success __retval(579)							\
+long insert_and_remove_lf_tree_##rem_tree##_list_##rem_list(void *ctx)	\
+{									\
+	long err, tree_data, list_data;					\
+									\
+	err = __insert_in_tree_and_list(&head, &root, &lock);		\
+	if (err)							\
+		return err;						\
+									\
+	err = __read_from_list(&head, &lock, rem_list);			\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		list_data = err;					\
+									\
+	err = __read_from_tree(&root, &lock, rem_tree);			\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		tree_data = err;					\
+									\
+	return tree_data + list_data;					\
+}
+
+/* Similar to insert_read_both, but list data is read and possibly removed
+ * first
+ *
+ * Results should be no different than reading and possibly removing rbtree
+ * node first
+ */
+INSERT_READ_BOTH(true, true, "insert_read_both_list_first: remove from tree + list");
+INSERT_READ_BOTH(false, false, "insert_read_both_list_first: remove from neither");
+INSERT_READ_BOTH(true, false, "insert_read_both_list_first: remove from tree");
+INSERT_READ_BOTH(false, true, "insert_read_both_list_first: remove from list");
+
+#define INSERT_DOUBLE_READ_AND_DEL(read_fn, read_root, desc)		\
+SEC("tc")								\
+__description(desc)							\
+__success __retval(-1)							\
+long insert_double_##read_fn##_and_del_##read_root(void *ctx)		\
+{									\
+	long err, list_data;						\
+									\
+	err = __insert_in_tree_and_list(&head, &root, &lock);		\
+	if (err)							\
+		return err;						\
+									\
+	err = read_fn(&read_root, &lock, true);				\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		list_data = err;					\
+									\
+	err = read_fn(&read_root, &lock, true);				\
+	if (err < 0)							\
+		return err;						\
+									\
+	return err + list_data;						\
+}
+
+/* Insert into both tree and list, then try reading-and-removing from either twice
+ *
+ * The second read-and-remove should fail on read step since the node has
+ * already been removed
+ */
+INSERT_DOUBLE_READ_AND_DEL(__read_from_tree, root, "insert_double_del: 2x read-and-del from tree");
+INSERT_DOUBLE_READ_AND_DEL(__read_from_list, head, "insert_double_del: 2x read-and-del from list");
+
+#define INSERT_STASH_READ(rem_tree, desc)				\
+SEC("tc")								\
+__description(desc)							\
+__success __retval(84)							\
+long insert_rbtree_and_stash__del_tree_##rem_tree(void *ctx)		\
+{									\
+	long err, tree_data, map_data;					\
+									\
+	err = __stash_map_insert_tree(0, 42, &root, &lock);		\
+	if (err)							\
+		return err;						\
+									\
+	err = __read_from_tree(&root, &lock, rem_tree);			\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		tree_data = err;					\
+									\
+	err = __read_from_unstash(0);					\
+	if (err < 0)							\
+		return err;						\
+	else								\
+		map_data = err;						\
+									\
+	return tree_data + map_data;					\
+}
+
+/* Stash a refcounted node in map_val, insert same node into tree, then try
+ * reading data from tree then unstashed map_val, possibly removing from tree
+ *
+ * Removing from tree should have no effect on map_val kptr validity
+ */
+INSERT_STASH_READ(true, "insert_stash_read: remove from tree");
+INSERT_STASH_READ(false, "insert_stash_read: don't remove from tree");
+
+SEC("tc")
+__success
+long rbtree_refcounted_node_ref_escapes(void *ctx)
+{
+	struct node_acquire *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&alock);
+	bpf_rbtree_add(&aroot, &n->node, less_a);
+	m = bpf_refcount_acquire(n);
+	bpf_spin_unlock(&alock);
+	if (!m)
+		return 2;
+
+	m->key = 2;
+	bpf_obj_drop(m);
+	return 0;
+}
+
+SEC("tc")
+__success
+long rbtree_refcounted_node_ref_escapes_owning_input(void *ctx)
+{
+	struct node_acquire *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	m = bpf_refcount_acquire(n);
+	m->key = 2;
+
+	bpf_spin_lock(&alock);
+	bpf_rbtree_add(&aroot, &n->node, less_a);
+	bpf_spin_unlock(&alock);
+
+	bpf_obj_drop(m);
+
+	return 0;
+}
+
+static long __stash_map_empty_xchg(struct node_data *n, int idx)
+{
+	struct map_value *mapval = bpf_map_lookup_elem(&stashed_nodes, &idx);
+
+	if (!mapval) {
+		bpf_obj_drop(n);
+		return 1;
+	}
+	n = bpf_kptr_xchg(&mapval->node, n);
+	if (n) {
+		bpf_obj_drop(n);
+		return 2;
+	}
+	return 0;
+}
+
+SEC("tc")
+long rbtree_wrong_owner_remove_fail_a1(void *ctx)
+{
+	struct node_data *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+	m = bpf_refcount_acquire(n);
+
+	if (__stash_map_empty_xchg(n, 0)) {
+		bpf_obj_drop(m);
+		return 2;
+	}
+
+	if (__stash_map_empty_xchg(m, 1))
+		return 3;
+
+	return 0;
+}
+
+SEC("tc")
+long rbtree_wrong_owner_remove_fail_b(void *ctx)
+{
+	struct map_value *mapval;
+	struct node_data *n;
+	int idx = 0;
+
+	mapval = bpf_map_lookup_elem(&stashed_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	n = bpf_kptr_xchg(&mapval->node, NULL);
+	if (!n)
+		return 2;
+
+	bpf_spin_lock(&block);
+
+	bpf_rbtree_add(&broot, &n->r, less);
+
+	bpf_spin_unlock(&block);
+	return 0;
+}
+
+SEC("tc")
+long rbtree_wrong_owner_remove_fail_a2(void *ctx)
+{
+	struct map_value *mapval;
+	struct bpf_rb_node *res;
+	struct node_data *m;
+	int idx = 1;
+
+	mapval = bpf_map_lookup_elem(&stashed_nodes, &idx);
+	if (!mapval)
+		return 1;
+
+	m = bpf_kptr_xchg(&mapval->node, NULL);
+	if (!m)
+		return 2;
+	bpf_spin_lock(&lock);
+
+	/* make m non-owning ref */
+	bpf_list_push_back(&head, &m->l);
+	res = bpf_rbtree_remove(&root, &m->r);
+
+	bpf_spin_unlock(&lock);
+	if (res) {
+		bpf_obj_drop(container_of(res, struct node_data, r));
+		return 3;
+	}
+	return 0;
+}
+
+SEC("?fentry.s/bpf_testmod_test_read")
+__success
+int BPF_PROG(rbtree_sleepable_rcu,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	struct bpf_rb_node *rb;
+	struct node_data *n, *m = NULL;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 0;
+
+	bpf_rcu_read_lock();
+	bpf_spin_lock(&lock);
+	bpf_rbtree_add(&root, &n->r, less);
+	rb = bpf_rbtree_first(&root);
+	if (!rb)
+		goto err_out;
+
+	rb = bpf_rbtree_remove(&root, rb);
+	if (!rb)
+		goto err_out;
+
+	m = container_of(rb, struct node_data, r);
+
+err_out:
+	bpf_spin_unlock(&lock);
+	bpf_rcu_read_unlock();
+	if (m)
+		bpf_obj_drop(m);
+	return 0;
+}
+
+SEC("?fentry.s/bpf_testmod_test_read")
+__success
+int BPF_PROG(rbtree_sleepable_rcu_no_explicit_rcu_lock,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	struct bpf_rb_node *rb;
+	struct node_data *n, *m = NULL;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 0;
+
+	/* No explicit bpf_rcu_read_lock */
+	bpf_spin_lock(&lock);
+	bpf_rbtree_add(&root, &n->r, less);
+	rb = bpf_rbtree_first(&root);
+	if (!rb)
+		goto err_out;
+
+	rb = bpf_rbtree_remove(&root, rb);
+	if (!rb)
+		goto err_out;
+
+	m = container_of(rb, struct node_data, r);
+
+err_out:
+	bpf_spin_unlock(&lock);
+	/* No explicit bpf_rcu_read_unlock */
+	if (m)
+		bpf_obj_drop(m);
+	return 0;
+}
+
+private(kptr_ref) u64 ref;
+
+static int probe_read_refcount(void)
+{
+	u32 refcount;
+
+	bpf_probe_read_kernel(&refcount, sizeof(refcount), (void *) ref);
+	return refcount;
+}
+
+static int __insert_in_list(struct bpf_list_head *head, struct bpf_spin_lock *lock,
+			    struct node_data __kptr **node)
+{
+	struct node_data *node_new, *node_ref, *node_old;
+
+	node_new = bpf_obj_new(typeof(*node_new));
+	if (!node_new)
+		return -1;
+
+	node_ref = bpf_refcount_acquire(node_new);
+	node_old = bpf_kptr_xchg(node, node_new);
+	if (node_old) {
+		bpf_obj_drop(node_old);
+		bpf_obj_drop(node_ref);
+		return -2;
+	}
+
+	bpf_spin_lock(lock);
+	bpf_list_push_front(head, &node_ref->l);
+	ref = (u64)(void *) &node_ref->ref;
+	bpf_spin_unlock(lock);
+	return probe_read_refcount();
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__type(key, int);
+	__type(value, struct map_value);
+	__uint(max_entries, 1);
+} percpu_hash SEC(".maps");
+
+SEC("tc")
+int percpu_hash_refcount_leak(void *ctx)
+{
+	struct map_value *v;
+	int key = 0;
+
+	v = bpf_map_lookup_elem(&percpu_hash, &key);
+	if (!v)
+		return 0;
+
+	return __insert_in_list(&head, &lock, &v->node);
+}
+
+SEC("tc")
+int check_percpu_hash_refcount(void *ctx)
+{
+	return probe_read_refcount();
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c
new file mode 100644
index 000000000000..836c8ab7b908
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/refcounted_kptr_fail.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+struct node_acquire {
+	long key;
+	long data;
+	struct bpf_rb_node node;
+	struct bpf_refcount refcount;
+};
+
+extern void bpf_rcu_read_lock(void) __ksym;
+extern void bpf_rcu_read_unlock(void) __ksym;
+
+#define private(name) SEC(".data." #name) __hidden __attribute__((aligned(8)))
+private(A) struct bpf_spin_lock glock;
+private(A) struct bpf_rb_root groot __contains(node_acquire, node);
+
+static bool less(struct bpf_rb_node *a, const struct bpf_rb_node *b)
+{
+	struct node_acquire *node_a;
+	struct node_acquire *node_b;
+
+	node_a = container_of(a, struct node_acquire, node);
+	node_b = container_of(b, struct node_acquire, node);
+
+	return node_a->key < node_b->key;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference id=4 alloc_insn={{[0-9]+}}")
+long rbtree_refcounted_node_ref_escapes(void *ctx)
+{
+	struct node_acquire *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	/* m becomes an owning ref but is never drop'd or added to a tree */
+	m = bpf_refcount_acquire(n);
+	bpf_spin_unlock(&glock);
+	if (!m)
+		return 2;
+
+	m->key = 2;
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+long refcount_acquire_maybe_null(void *ctx)
+{
+	struct node_acquire *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	/* Intentionally not testing !n
+	 * it's MAYBE_NULL for refcount_acquire
+	 */
+	m = bpf_refcount_acquire(n);
+	if (m)
+		bpf_obj_drop(m);
+	if (n)
+		bpf_obj_drop(n);
+
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("Unreleased reference id=3 alloc_insn={{[0-9]+}}")
+long rbtree_refcounted_node_ref_escapes_owning_input(void *ctx)
+{
+	struct node_acquire *n, *m;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 1;
+
+	/* m becomes an owning ref but is never drop'd or added to a tree */
+	m = bpf_refcount_acquire(n);
+	m->key = 2;
+
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_spin_unlock(&glock);
+
+	return 0;
+}
+
+SEC("?fentry.s/bpf_testmod_test_read")
+__failure __msg("function calls are not allowed while holding a lock")
+int BPF_PROG(rbtree_fail_sleepable_lock_across_rcu,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	struct node_acquire *n;
+
+	n = bpf_obj_new(typeof(*n));
+	if (!n)
+		return 0;
+
+	/* spin_{lock,unlock} are in different RCU CS */
+	bpf_rcu_read_lock();
+	bpf_spin_lock(&glock);
+	bpf_rbtree_add(&groot, &n->node, less);
+	bpf_rcu_read_unlock();
+
+	bpf_rcu_read_lock();
+	bpf_spin_unlock(&glock);
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/res_spin_lock.c b/tools/testing/selftests/bpf/progs/res_spin_lock.c
new file mode 100644
index 000000000000..22c4fb8b9266
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/res_spin_lock.c
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024-2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define EDEADLK 35
+#define ETIMEDOUT 110
+
+struct arr_elem {
+	struct bpf_res_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 64);
+	__type(key, int);
+	__type(value, struct arr_elem);
+} arrmap SEC(".maps");
+
+struct bpf_res_spin_lock lockA __hidden SEC(".data.A");
+struct bpf_res_spin_lock lockB __hidden SEC(".data.B");
+
+SEC("tc")
+int res_spin_lock_test(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem1, *elem2;
+	int r;
+
+	elem1 = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem1)
+		return -1;
+	elem2 = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem2)
+		return -1;
+
+	r = bpf_res_spin_lock(&elem1->lock);
+	if (r)
+		return r;
+	r = bpf_res_spin_lock(&elem2->lock);
+	if (!r) {
+		bpf_res_spin_unlock(&elem2->lock);
+		bpf_res_spin_unlock(&elem1->lock);
+		return -1;
+	}
+	bpf_res_spin_unlock(&elem1->lock);
+	return r != -EDEADLK;
+}
+
+SEC("tc")
+int res_spin_lock_test_AB(struct __sk_buff *ctx)
+{
+	int r;
+
+	r = bpf_res_spin_lock(&lockA);
+	if (r)
+		return !r;
+	/* Only unlock if we took the lock. */
+	if (!bpf_res_spin_lock(&lockB))
+		bpf_res_spin_unlock(&lockB);
+	bpf_res_spin_unlock(&lockA);
+	return 0;
+}
+
+int err;
+
+SEC("tc")
+int res_spin_lock_test_BA(struct __sk_buff *ctx)
+{
+	int r;
+
+	r = bpf_res_spin_lock(&lockB);
+	if (r)
+		return !r;
+	if (!bpf_res_spin_lock(&lockA))
+		bpf_res_spin_unlock(&lockA);
+	else
+		err = -EDEADLK;
+	bpf_res_spin_unlock(&lockB);
+	return err ?: 0;
+}
+
+SEC("tc")
+int res_spin_lock_test_held_lock_max(struct __sk_buff *ctx)
+{
+	struct bpf_res_spin_lock *locks[48] = {};
+	struct arr_elem *e;
+	u64 time_beg, time;
+	int ret = 0, i;
+
+	_Static_assert(ARRAY_SIZE(((struct rqspinlock_held){}).locks) == 31,
+		       "RES_NR_HELD assumed to be 31");
+
+	for (i = 0; i < 34; i++) {
+		int key = i;
+
+		/* We cannot pass in i as it will get spilled/filled by the compiler and
+		 * loses bounds in verifier state.
+		 */
+		e = bpf_map_lookup_elem(&arrmap, &key);
+		if (!e)
+			return 1;
+		locks[i] = &e->lock;
+	}
+
+	for (; i < 48; i++) {
+		int key = i - 2;
+
+		/* We cannot pass in i as it will get spilled/filled by the compiler and
+		 * loses bounds in verifier state.
+		 */
+		e = bpf_map_lookup_elem(&arrmap, &key);
+		if (!e)
+			return 1;
+		locks[i] = &e->lock;
+	}
+
+	time_beg = bpf_ktime_get_ns();
+	for (i = 0; i < 34; i++) {
+		if (bpf_res_spin_lock(locks[i]))
+			goto end;
+	}
+
+	/* Trigger AA, after exhausting entries in the held lock table. This
+	 * time, only the timeout can save us, as AA detection won't succeed.
+	 */
+	ret = bpf_res_spin_lock(locks[34]);
+	if (!ret) {
+		bpf_res_spin_unlock(locks[34]);
+		ret = 1;
+		goto end;
+	}
+
+	ret = ret != -ETIMEDOUT ? 2 : 0;
+
+end:
+	for (i = i - 1; i >= 0; i--)
+		bpf_res_spin_unlock(locks[i]);
+	time = bpf_ktime_get_ns() - time_beg;
+	/* Time spent should be easily above our limit (1/4 s), since AA
+	 * detection won't be expedited due to lack of held lock entry.
+	 */
+	return ret ?: (time > 1000000000 / 4 ? 0 : 1);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/res_spin_lock_fail.c b/tools/testing/selftests/bpf/progs/res_spin_lock_fail.c
new file mode 100644
index 000000000000..330682a88c16
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/res_spin_lock_fail.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024-2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct arr_elem {
+	struct bpf_res_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct arr_elem);
+} arrmap SEC(".maps");
+
+long value;
+
+struct bpf_spin_lock lock __hidden SEC(".data.A");
+struct bpf_res_spin_lock res_lock __hidden SEC(".data.B");
+
+SEC("?tc")
+__failure __msg("point to map value or allocated object")
+int res_spin_lock_arg(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	bpf_res_spin_lock((struct bpf_res_spin_lock *)bpf_core_cast(&elem->lock, struct __sk_buff));
+	bpf_res_spin_lock(&elem->lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("AA deadlock detected")
+int res_spin_lock_AA(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	bpf_res_spin_lock(&elem->lock);
+	bpf_res_spin_lock(&elem->lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("AA deadlock detected")
+int res_spin_lock_cond_AA(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock(&elem->lock))
+		return 0;
+	bpf_res_spin_lock(&elem->lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("unlock of different lock")
+int res_spin_lock_mismatch_1(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock(&elem->lock))
+		return 0;
+	bpf_res_spin_unlock(&res_lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("unlock of different lock")
+int res_spin_lock_mismatch_2(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock(&res_lock))
+		return 0;
+	bpf_res_spin_unlock(&elem->lock);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("unlock of different lock")
+int res_spin_lock_irq_mismatch_1(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+	unsigned long f1;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	bpf_local_irq_save(&f1);
+	if (bpf_res_spin_lock(&res_lock))
+		return 0;
+	bpf_res_spin_unlock_irqrestore(&res_lock, &f1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("unlock of different lock")
+int res_spin_lock_irq_mismatch_2(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+	unsigned long f1;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock_irqsave(&res_lock, &f1))
+		return 0;
+	bpf_res_spin_unlock(&res_lock);
+	return 0;
+}
+
+SEC("?tc")
+__success
+int res_spin_lock_ooo(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock(&res_lock))
+		return 0;
+	if (bpf_res_spin_lock(&elem->lock)) {
+		bpf_res_spin_unlock(&res_lock);
+		return 0;
+	}
+	bpf_res_spin_unlock(&elem->lock);
+	bpf_res_spin_unlock(&res_lock);
+	return 0;
+}
+
+SEC("?tc")
+__success
+int res_spin_lock_ooo_irq(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+	unsigned long f1, f2;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	if (bpf_res_spin_lock_irqsave(&res_lock, &f1))
+		return 0;
+	if (bpf_res_spin_lock_irqsave(&elem->lock, &f2)) {
+		bpf_res_spin_unlock_irqrestore(&res_lock, &f1);
+		/* We won't have a unreleased IRQ flag error here. */
+		return 0;
+	}
+	bpf_res_spin_unlock_irqrestore(&elem->lock, &f2);
+	bpf_res_spin_unlock_irqrestore(&res_lock, &f1);
+	return 0;
+}
+
+struct bpf_res_spin_lock lock1 __hidden SEC(".data.OO1");
+struct bpf_res_spin_lock lock2 __hidden SEC(".data.OO2");
+
+SEC("?tc")
+__failure __msg("bpf_res_spin_unlock cannot be out of order")
+int res_spin_lock_ooo_unlock(struct __sk_buff *ctx)
+{
+	if (bpf_res_spin_lock(&lock1))
+		return 0;
+	if (bpf_res_spin_lock(&lock2)) {
+		bpf_res_spin_unlock(&lock1);
+		return 0;
+	}
+	bpf_res_spin_unlock(&lock1);
+	bpf_res_spin_unlock(&lock2);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("off 1 doesn't point to 'struct bpf_res_spin_lock' that is at 0")
+int res_spin_lock_bad_off(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem)
+		return 0;
+	bpf_res_spin_lock((void *)&elem->lock + 1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("R1 doesn't have constant offset. bpf_res_spin_lock has to be at the constant offset")
+int res_spin_lock_var_off(struct __sk_buff *ctx)
+{
+	struct arr_elem *elem;
+	u64 val = value;
+
+	elem = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!elem) {
+		// FIXME: Only inline assembly use in assert macro doesn't emit
+		//	  BTF definition.
+		bpf_throw(0);
+		return 0;
+	}
+	bpf_assert_range(val, 0, 40);
+	bpf_res_spin_lock((void *)&value + val);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("map 'res_spin.bss' has no valid bpf_res_spin_lock")
+int res_spin_lock_no_lock_map(struct __sk_buff *ctx)
+{
+	bpf_res_spin_lock((void *)&value + 1);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("local 'kptr' has no valid bpf_res_spin_lock")
+int res_spin_lock_no_lock_kptr(struct __sk_buff *ctx)
+{
+	struct { int i; } *p = bpf_obj_new(typeof(*p));
+
+	if (!p)
+		return 0;
+	bpf_res_spin_lock((void *)p);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/ringbuf_bench.c b/tools/testing/selftests/bpf/progs/ringbuf_bench.c
new file mode 100644
index 000000000000..d96c7d1e8fc2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/ringbuf_bench.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} ringbuf SEC(".maps");
+
+const volatile int batch_cnt = 0;
+const volatile long use_output = 0;
+const volatile bool bench_producer = false;
+
+long sample_val = 42;
+long dropped __attribute__((aligned(128))) = 0;
+long hits __attribute__((aligned(128))) = 0;
+
+const volatile long wakeup_data_size = 0;
+
+static __always_inline long get_flags()
+{
+	long sz;
+
+	if (bench_producer)
+		return BPF_RB_NO_WAKEUP;
+
+	if (!wakeup_data_size)
+		return 0;
+
+	sz = bpf_ringbuf_query(&ringbuf, BPF_RB_AVAIL_DATA);
+	return sz >= wakeup_data_size ? BPF_RB_FORCE_WAKEUP : BPF_RB_NO_WAKEUP;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int bench_ringbuf(void *ctx)
+{
+	long *sample, flags;
+	int i;
+
+	if (!use_output) {
+		for (i = 0; i < batch_cnt; i++) {
+			sample = bpf_ringbuf_reserve(&ringbuf,
+					             sizeof(sample_val), 0);
+			if (!sample) {
+				__sync_add_and_fetch(&dropped, 1);
+			} else {
+				*sample = sample_val;
+				flags = get_flags();
+				bpf_ringbuf_submit(sample, flags);
+				if (bench_producer)
+					__sync_add_and_fetch(&hits, 1);
+			}
+		}
+	} else {
+		for (i = 0; i < batch_cnt; i++) {
+			flags = get_flags();
+			if (bpf_ringbuf_output(&ringbuf, &sample_val,
+					       sizeof(sample_val), flags))
+				__sync_add_and_fetch(&dropped, 1);
+			else if (bench_producer)
+				__sync_add_and_fetch(&hits, 1);
+
+		}
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/security_bpf_map.c b/tools/testing/selftests/bpf/progs/security_bpf_map.c
new file mode 100644
index 000000000000..7216b3450e96
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/security_bpf_map.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define EPERM 1 /* Operation not permitted */
+
+/* From include/linux/mm.h. */
+#define FMODE_WRITE	0x2
+
+struct map;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1);
+} prot_status_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 3);
+} prot_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 3);
+} not_prot_map SEC(".maps");
+
+SEC("fmod_ret/security_bpf_map")
+int BPF_PROG(fmod_bpf_map, struct bpf_map *map, int fmode)
+{
+	__u32 key = 0;
+	__u32 *status_ptr = bpf_map_lookup_elem(&prot_status_map, &key);
+
+	if (!status_ptr || !*status_ptr)
+		return 0;
+
+	if (map == &prot_map) {
+		/* Allow read-only access */
+		if (fmode & FMODE_WRITE)
+			return -EPERM;
+	}
+
+	return 0;
+}
+
+/*
+ * This program keeps references to maps. This is needed to prevent
+ * optimizing them out.
+ */
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(fentry_dummy1, int a)
+{
+	__u32 key = 0;
+	__u32 val1 = a;
+	__u32 val2 = a + 1;
+
+	bpf_map_update_elem(&prot_map, &key, &val1, BPF_ANY);
+	bpf_map_update_elem(&not_prot_map, &key, &val2, BPF_ANY);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/sendmsg4_prog.c b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c
new file mode 100644
index 000000000000..edc159598a0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sendmsg4_prog.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+#define SRC1_IP4		0xAC100001U /* 172.16.0.1 */
+#define SRC2_IP4		0x00000000U
+#define SRC_REWRITE_IP4		0x7f000004U
+#define DST_IP4			0xC0A801FEU /* 192.168.1.254 */
+#define DST_REWRITE_IP4		0x7f000001U
+#define DST_PORT		4040
+#define DST_REWRITE_PORT4	4444
+
+SEC("cgroup/sendmsg4")
+int sendmsg_v4_prog(struct bpf_sock_addr *ctx)
+{
+	if (ctx->type != SOCK_DGRAM)
+		return 0;
+
+	if (!get_set_sk_priority(ctx))
+		return 0;
+
+	/* Rewrite source. */
+	if (ctx->msg_src_ip4 == bpf_htonl(SRC1_IP4) ||
+	    ctx->msg_src_ip4 == bpf_htonl(SRC2_IP4)) {
+		ctx->msg_src_ip4 = bpf_htonl(SRC_REWRITE_IP4);
+	} else {
+		/* Unexpected source. Reject sendmsg. */
+		return 0;
+	}
+
+	/* Rewrite destination. */
+	if ((ctx->user_ip4 >> 24) == (bpf_htonl(DST_IP4) >> 24) &&
+	     ctx->user_port == bpf_htons(DST_PORT)) {
+		ctx->user_ip4 = bpf_htonl(DST_REWRITE_IP4);
+		ctx->user_port = bpf_htons(DST_REWRITE_PORT4);
+	} else {
+		/* Unexpected source. Reject sendmsg. */
+		return 0;
+	}
+
+	return 1;
+}
+
+SEC("cgroup/sendmsg4")
+int sendmsg_v4_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sendmsg6_prog.c b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c
new file mode 100644
index 000000000000..36a7f960799f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sendmsg6_prog.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <bpf_sockopt_helpers.h>
+
+#define SRC_REWRITE_IP6_0	0
+#define SRC_REWRITE_IP6_1	0
+#define SRC_REWRITE_IP6_2	0
+#define SRC_REWRITE_IP6_3	6
+
+#define DST_REWRITE_IP6_0	0
+#define DST_REWRITE_IP6_1	0
+#define DST_REWRITE_IP6_2	0
+#define DST_REWRITE_IP6_3	1
+
+#define DST_REWRITE_IP6_V4_MAPPED_0	0
+#define DST_REWRITE_IP6_V4_MAPPED_1	0
+#define DST_REWRITE_IP6_V4_MAPPED_2	0x0000FFFF
+#define DST_REWRITE_IP6_V4_MAPPED_3	0xc0a80004 // 192.168.0.4
+
+#define DST_REWRITE_PORT6	6666
+
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_prog(struct bpf_sock_addr *ctx)
+{
+	if (ctx->type != SOCK_DGRAM)
+		return 0;
+
+	if (!get_set_sk_priority(ctx))
+		return 0;
+
+	/* Rewrite source. */
+	if (ctx->msg_src_ip6[3] == bpf_htonl(1) ||
+	    ctx->msg_src_ip6[3] == bpf_htonl(0)) {
+		ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0);
+		ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1);
+		ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2);
+		ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
+	} else {
+		/* Unexpected source. Reject sendmsg. */
+		return 0;
+	}
+
+	/* Rewrite destination. */
+	if (ctx->user_ip6[0] == bpf_htonl(0xFACEB00C)) {
+		ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_0);
+		ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_1);
+		ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_2);
+		ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_3);
+
+		ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
+	} else {
+		/* Unexpected destination. Reject sendmsg. */
+		return 0;
+	}
+
+	return 1;
+}
+
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_v4mapped_prog(struct bpf_sock_addr *ctx)
+{
+	/* Rewrite source. */
+	ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0);
+	ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1);
+	ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2);
+	ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
+
+	/* Rewrite destination. */
+	ctx->user_ip6[0] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_0);
+	ctx->user_ip6[1] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_1);
+	ctx->user_ip6[2] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_2);
+	ctx->user_ip6[3] = bpf_htonl(DST_REWRITE_IP6_V4_MAPPED_3);
+
+	ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
+
+	return 1;
+}
+
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_wildcard_prog(struct bpf_sock_addr *ctx)
+{
+	/* Rewrite source. */
+	ctx->msg_src_ip6[0] = bpf_htonl(SRC_REWRITE_IP6_0);
+	ctx->msg_src_ip6[1] = bpf_htonl(SRC_REWRITE_IP6_1);
+	ctx->msg_src_ip6[2] = bpf_htonl(SRC_REWRITE_IP6_2);
+	ctx->msg_src_ip6[3] = bpf_htonl(SRC_REWRITE_IP6_3);
+
+	/* Rewrite destination. */
+	ctx->user_ip6[0] = bpf_htonl(0);
+	ctx->user_ip6[1] = bpf_htonl(0);
+	ctx->user_ip6[2] = bpf_htonl(0);
+	ctx->user_ip6[3] = bpf_htonl(0);
+
+	ctx->user_port = bpf_htons(DST_REWRITE_PORT6);
+
+	return 1;
+}
+
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_preserve_dst_prog(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/sendmsg6")
+int sendmsg_v6_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c
new file mode 100644
index 000000000000..332d0eb1116f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sendmsg_unix_prog.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+
+#include <string.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+__u8 SERVUN_REWRITE_ADDRESS[] = "\0bpf_cgroup_unix_test_rewrite";
+
+SEC("cgroup/sendmsg_unix")
+int sendmsg_unix_prog(struct bpf_sock_addr *ctx)
+{
+	struct bpf_sock_addr_kern *sa_kern = bpf_cast_to_kern_ctx(ctx);
+	struct sockaddr_un *sa_kern_unaddr;
+	__u32 unaddrlen = offsetof(struct sockaddr_un, sun_path) +
+			  sizeof(SERVUN_REWRITE_ADDRESS) - 1;
+	int ret;
+
+	/* Rewrite destination. */
+	ret = bpf_sock_addr_set_sun_path(sa_kern, SERVUN_REWRITE_ADDRESS,
+					 sizeof(SERVUN_REWRITE_ADDRESS) - 1);
+	if (ret)
+		return 0;
+
+	if (sa_kern->uaddrlen != unaddrlen)
+		return 0;
+
+	sa_kern_unaddr = bpf_core_cast(sa_kern->uaddr, struct sockaddr_un);
+	if (memcmp(sa_kern_unaddr->sun_path, SERVUN_REWRITE_ADDRESS,
+			sizeof(SERVUN_REWRITE_ADDRESS) - 1) != 0)
+		return 0;
+
+	return 1;
+}
+
+SEC("cgroup/sendmsg_unix")
+int sendmsg_unix_deny_prog(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/set_global_vars.c b/tools/testing/selftests/bpf/progs/set_global_vars.c
new file mode 100644
index 000000000000..ebaef28b2cb3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/set_global_vars.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include "bpf_experimental.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include <stdbool.h>
+
+char _license[] SEC("license") = "GPL";
+
+typedef __s32 s32;
+typedef s32 i32;
+typedef __u8 u8;
+
+enum Enum { EA1 = 0, EA2 = 11, EA3 = 10 };
+enum Enumu64 {EB1 = 0llu, EB2 = 12llu };
+enum Enums64 { EC1 = 0ll, EC2 = 13ll };
+
+const volatile __s64 var_s64 = -1;
+const volatile __u64 var_u64 = 0;
+const volatile i32 var_s32 = -1;
+const volatile __u32 var_u32 = 0;
+const volatile __s16 var_s16 = -1;
+const volatile __u16 var_u16 = 0;
+const volatile __s8 var_s8 = -1;
+const volatile u8 var_u8 = 0;
+const volatile enum Enum var_ea = EA1;
+const volatile enum Enumu64 var_eb = EB1;
+const volatile enum Enums64 var_ec = EC1;
+const volatile bool var_b = false;
+const volatile i32 arr[32];
+const volatile enum Enum enum_arr[32];
+const volatile i32 three_d[47][19][17];
+const volatile i32 *ptr_arr[32];
+
+struct Struct {
+	int:16;
+	__u16 filler;
+	struct {
+		const __u16 filler2;
+	};
+	struct Struct2 {
+		__u16 filler;
+		volatile struct {
+			const int:1;
+			union {
+				const volatile u8 var_u8[3];
+				const volatile __s16 filler3;
+				const int:1;
+				s32 mat[7][5];
+			} u;
+		};
+	} struct2[2][4];
+};
+
+const volatile __u32 stru = 0; /* same prefix as below */
+const volatile struct Struct struct1[3];
+const volatile struct Struct struct11[11][7];
+
+struct Struct3 {
+	struct {
+		u8 var_u8_l;
+	};
+	struct {
+		struct {
+			u8 var_u8_h;
+		};
+	};
+};
+
+typedef struct Struct3 Struct3_t;
+
+union Union {
+	__u16 var_u16;
+	Struct3_t struct3;
+};
+
+const volatile union Union union1 = {.var_u16 = -1};
+
+SEC("socket")
+int test_set_globals(void *ctx)
+{
+	volatile __s8 a;
+
+	a = var_s64;
+	a = var_u64;
+	a = var_s32;
+	a = var_u32;
+	a = var_s16;
+	a = var_u16;
+	a = var_s8;
+	a = var_u8;
+	a = var_ea;
+	a = var_eb;
+	a = var_ec;
+	a = var_b;
+	a = struct1[2].struct2[1][2].u.var_u8[2];
+	a = union1.var_u16;
+	a = arr[3];
+	a = arr[EA2];
+	a = enum_arr[EC2];
+	a = three_d[31][7][EA2];
+	a = struct1[2].struct2[1][2].u.mat[5][3];
+	a = struct11[7][5].struct2[0][1].u.mat[3][0];
+
+	return a;
+}
diff --git a/tools/testing/selftests/bpf/progs/setget_sockopt.c b/tools/testing/selftests/bpf/progs/setget_sockopt.c
new file mode 100644
index 000000000000..d330b1511979
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/setget_sockopt.c
@@ -0,0 +1,434 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+extern unsigned long CONFIG_HZ __kconfig;
+
+const volatile char veth[IFNAMSIZ];
+const volatile int veth_ifindex;
+
+int nr_listen;
+int nr_passive;
+int nr_active;
+int nr_connect;
+int nr_binddev;
+int nr_socket_post_create;
+int nr_fin_wait1;
+
+struct sockopt_test {
+	int opt;
+	int new;
+	int restore;
+	int expected;
+	int tcp_expected;
+	unsigned int flip:1;
+};
+
+static const char not_exist_cc[] = "not_exist";
+static const char cubic_cc[] = "cubic";
+static const char reno_cc[] = "reno";
+
+static const struct sockopt_test sol_socket_tests[] = {
+	{ .opt = SO_REUSEADDR, .flip = 1, },
+	{ .opt = SO_SNDBUF, .new = 8123, .expected = 8123 * 2, },
+	{ .opt = SO_RCVBUF, .new = 8123, .expected = 8123 * 2, },
+	{ .opt = SO_KEEPALIVE, .flip = 1, },
+	{ .opt = SO_PRIORITY, .new = 0xeb9f, .expected = 0xeb9f, },
+	{ .opt = SO_REUSEPORT, .flip = 1, },
+	{ .opt = SO_RCVLOWAT, .new = 8123, .expected = 8123, },
+	{ .opt = SO_MARK, .new = 0xeb9f, .expected = 0xeb9f, },
+	{ .opt = SO_MAX_PACING_RATE, .new = 0xeb9f, .expected = 0xeb9f, },
+	{ .opt = SO_TXREHASH, .flip = 1, },
+	{ .opt = 0, },
+};
+
+static const struct sockopt_test sol_tcp_tests[] = {
+	{ .opt = TCP_NODELAY, .flip = 1, },
+	{ .opt = TCP_KEEPIDLE, .new = 123, .expected = 123, .restore = 321, },
+	{ .opt = TCP_KEEPINTVL, .new = 123, .expected = 123, .restore = 321, },
+	{ .opt = TCP_KEEPCNT, .new = 123, .expected = 123, .restore = 124, },
+	{ .opt = TCP_SYNCNT, .new = 123, .expected = 123, .restore = 124, },
+	{ .opt = TCP_WINDOW_CLAMP, .new = 8123, .expected = 8123, .restore = 8124, },
+	{ .opt = TCP_CONGESTION, },
+	{ .opt = TCP_THIN_LINEAR_TIMEOUTS, .flip = 1, },
+	{ .opt = TCP_USER_TIMEOUT, .new = 123400, .expected = 123400, },
+	{ .opt = TCP_NOTSENT_LOWAT, .new = 1314, .expected = 1314, },
+	{ .opt = TCP_BPF_SOCK_OPS_CB_FLAGS, .new = BPF_SOCK_OPS_ALL_CB_FLAGS,
+	  .expected = BPF_SOCK_OPS_ALL_CB_FLAGS, },
+	{ .opt = TCP_BPF_DELACK_MAX, .new = 30000, .expected = 30000, },
+	{ .opt = TCP_BPF_RTO_MIN, .new = 30000, .expected = 30000, },
+	{ .opt = TCP_RTO_MAX_MS, .new = 2000, .expected = 2000, },
+	{ .opt = 0, },
+};
+
+static const struct sockopt_test sol_ip_tests[] = {
+	{ .opt = IP_TOS, .new = 0xe1, .expected = 0xe1, .tcp_expected = 0xe0, },
+	{ .opt = 0, },
+};
+
+static const struct sockopt_test sol_ipv6_tests[] = {
+	{ .opt = IPV6_TCLASS, .new = 0xe1, .expected = 0xe1, .tcp_expected = 0xe0, },
+	{ .opt = IPV6_AUTOFLOWLABEL, .flip = 1, },
+	{ .opt = 0, },
+};
+
+struct loop_ctx {
+	void *ctx;
+	struct sock *sk;
+};
+
+static bool sk_is_tcp(struct sock *sk)
+{
+	return (sk->__sk_common.skc_family == AF_INET ||
+		sk->__sk_common.skc_family == AF_INET6) &&
+		sk->sk_type == SOCK_STREAM &&
+		sk->sk_protocol == IPPROTO_TCP;
+}
+
+static int bpf_test_sockopt_flip(void *ctx, struct sock *sk,
+				 const struct sockopt_test *t,
+				 int level)
+{
+	int old, tmp, new, opt = t->opt;
+
+	opt = t->opt;
+
+	if (opt == SO_TXREHASH && !sk_is_tcp(sk))
+		return 0;
+
+	if (bpf_getsockopt(ctx, level, opt, &old, sizeof(old)))
+		return 1;
+	/* kernel initialized txrehash to 255 */
+	if (level == SOL_SOCKET && opt == SO_TXREHASH && old != 0 && old != 1)
+		old = 1;
+
+	new = !old;
+	if (bpf_setsockopt(ctx, level, opt, &new, sizeof(new)))
+		return 1;
+	if (bpf_getsockopt(ctx, level, opt, &tmp, sizeof(tmp)) ||
+	    tmp != new)
+		return 1;
+
+	if (bpf_setsockopt(ctx, level, opt, &old, sizeof(old)))
+		return 1;
+
+	return 0;
+}
+
+static int bpf_test_sockopt_int(void *ctx, struct sock *sk,
+				const struct sockopt_test *t,
+				int level)
+{
+	int old, tmp, new, expected, opt;
+
+	opt = t->opt;
+	new = t->new;
+	if (sk->sk_type == SOCK_STREAM && t->tcp_expected)
+		expected = t->tcp_expected;
+	else
+		expected = t->expected;
+
+	if (bpf_getsockopt(ctx, level, opt, &old, sizeof(old)) ||
+	    old == new)
+		return 1;
+
+	if (bpf_setsockopt(ctx, level, opt, &new, sizeof(new)))
+		return 1;
+	if (bpf_getsockopt(ctx, level, opt, &tmp, sizeof(tmp)) ||
+	    tmp != expected)
+		return 1;
+
+	if (t->restore)
+		old = t->restore;
+	if (bpf_setsockopt(ctx, level, opt, &old, sizeof(old)))
+		return 1;
+
+	return 0;
+}
+
+static int bpf_test_socket_sockopt(__u32 i, struct loop_ctx *lc)
+{
+	const struct sockopt_test *t;
+
+	if (i >= ARRAY_SIZE(sol_socket_tests))
+		return 1;
+
+	t = &sol_socket_tests[i];
+	if (!t->opt)
+		return 1;
+
+	if (t->flip)
+		return bpf_test_sockopt_flip(lc->ctx, lc->sk, t, SOL_SOCKET);
+
+	return bpf_test_sockopt_int(lc->ctx, lc->sk, t, SOL_SOCKET);
+}
+
+static int bpf_test_ip_sockopt(__u32 i, struct loop_ctx *lc)
+{
+	const struct sockopt_test *t;
+
+	if (i >= ARRAY_SIZE(sol_ip_tests))
+		return 1;
+
+	t = &sol_ip_tests[i];
+	if (!t->opt)
+		return 1;
+
+	if (t->flip)
+		return bpf_test_sockopt_flip(lc->ctx, lc->sk, t, IPPROTO_IP);
+
+	return bpf_test_sockopt_int(lc->ctx, lc->sk, t, IPPROTO_IP);
+}
+
+static int bpf_test_ipv6_sockopt(__u32 i, struct loop_ctx *lc)
+{
+	const struct sockopt_test *t;
+
+	if (i >= ARRAY_SIZE(sol_ipv6_tests))
+		return 1;
+
+	t = &sol_ipv6_tests[i];
+	if (!t->opt)
+		return 1;
+
+	if (t->flip)
+		return bpf_test_sockopt_flip(lc->ctx, lc->sk, t, IPPROTO_IPV6);
+
+	return bpf_test_sockopt_int(lc->ctx, lc->sk, t, IPPROTO_IPV6);
+}
+
+static int bpf_test_tcp_sockopt(__u32 i, struct loop_ctx *lc)
+{
+	const struct sockopt_test *t;
+	struct sock *sk;
+	void *ctx;
+
+	if (i >= ARRAY_SIZE(sol_tcp_tests))
+		return 1;
+
+	t = &sol_tcp_tests[i];
+	if (!t->opt)
+		return 1;
+
+	ctx = lc->ctx;
+	sk = lc->sk;
+
+	if (t->opt == TCP_CONGESTION) {
+		char old_cc[16], tmp_cc[16];
+		const char *new_cc;
+		int new_cc_len;
+
+		if (!bpf_setsockopt(ctx, IPPROTO_TCP, TCP_CONGESTION,
+				    (void *)not_exist_cc, sizeof(not_exist_cc)))
+			return 1;
+		if (bpf_getsockopt(ctx, IPPROTO_TCP, TCP_CONGESTION, old_cc, sizeof(old_cc)))
+			return 1;
+		if (!bpf_strncmp(old_cc, sizeof(old_cc), cubic_cc)) {
+			new_cc = reno_cc;
+			new_cc_len = sizeof(reno_cc);
+		} else {
+			new_cc = cubic_cc;
+			new_cc_len = sizeof(cubic_cc);
+		}
+		if (bpf_setsockopt(ctx, IPPROTO_TCP, TCP_CONGESTION, (void *)new_cc,
+				   new_cc_len))
+			return 1;
+		if (bpf_getsockopt(ctx, IPPROTO_TCP, TCP_CONGESTION, tmp_cc, sizeof(tmp_cc)))
+			return 1;
+		if (bpf_strncmp(tmp_cc, sizeof(tmp_cc), new_cc))
+			return 1;
+		if (bpf_setsockopt(ctx, IPPROTO_TCP, TCP_CONGESTION, old_cc, sizeof(old_cc)))
+			return 1;
+		return 0;
+	}
+
+	if (t->flip)
+		return bpf_test_sockopt_flip(ctx, sk, t, IPPROTO_TCP);
+
+	return bpf_test_sockopt_int(ctx, sk, t, IPPROTO_TCP);
+}
+
+static int bpf_test_sockopt(void *ctx, struct sock *sk)
+{
+	struct loop_ctx lc = { .ctx = ctx, .sk = sk, };
+	__u16 family, proto;
+	int n;
+
+	family = sk->sk_family;
+	proto = sk->sk_protocol;
+
+	n = bpf_loop(ARRAY_SIZE(sol_socket_tests), bpf_test_socket_sockopt, &lc, 0);
+	if (n != ARRAY_SIZE(sol_socket_tests))
+		return -1;
+
+	if (proto == IPPROTO_TCP) {
+		n = bpf_loop(ARRAY_SIZE(sol_tcp_tests), bpf_test_tcp_sockopt, &lc, 0);
+		if (n != ARRAY_SIZE(sol_tcp_tests))
+			return -1;
+	}
+
+	if (family == AF_INET) {
+		n = bpf_loop(ARRAY_SIZE(sol_ip_tests), bpf_test_ip_sockopt, &lc, 0);
+		if (n != ARRAY_SIZE(sol_ip_tests))
+			return -1;
+	} else {
+		n = bpf_loop(ARRAY_SIZE(sol_ipv6_tests), bpf_test_ipv6_sockopt, &lc, 0);
+		if (n != ARRAY_SIZE(sol_ipv6_tests))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int binddev_test(void *ctx)
+{
+	const char empty_ifname[] = "";
+	int ifindex, zero = 0;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   (void *)veth, sizeof(veth)))
+		return -1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &ifindex, sizeof(int)) ||
+	    ifindex != veth_ifindex)
+		return -1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTODEVICE,
+			   (void *)empty_ifname, sizeof(empty_ifname)))
+		return -1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &ifindex, sizeof(int)) ||
+	    ifindex != 0)
+		return -1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   (void *)&veth_ifindex, sizeof(int)))
+		return -1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &ifindex, sizeof(int)) ||
+	    ifindex != veth_ifindex)
+		return -1;
+
+	if (bpf_setsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &zero, sizeof(int)))
+		return -1;
+	if (bpf_getsockopt(ctx, SOL_SOCKET, SO_BINDTOIFINDEX,
+			   &ifindex, sizeof(int)) ||
+	    ifindex != 0)
+		return -1;
+
+	return 0;
+}
+
+static int test_tcp_maxseg(void *ctx, struct sock *sk)
+{
+	int val = 1314, tmp;
+
+	if (sk->sk_state != TCP_ESTABLISHED)
+		return bpf_setsockopt(ctx, IPPROTO_TCP, TCP_MAXSEG,
+				      &val, sizeof(val));
+
+	if (bpf_getsockopt(ctx, IPPROTO_TCP, TCP_MAXSEG, &tmp, sizeof(tmp)) ||
+	    tmp > val)
+		return -1;
+
+	return 0;
+}
+
+static int test_tcp_saved_syn(void *ctx, struct sock *sk)
+{
+	__u8 saved_syn[20];
+	int one = 1;
+
+	if (sk->sk_state == TCP_LISTEN)
+		return bpf_setsockopt(ctx, IPPROTO_TCP, TCP_SAVE_SYN,
+				      &one, sizeof(one));
+
+	return bpf_getsockopt(ctx, IPPROTO_TCP, TCP_SAVED_SYN,
+			      saved_syn, sizeof(saved_syn));
+}
+
+SEC("lsm_cgroup/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family,
+	     int type, int protocol, int kern)
+{
+	struct sock *sk = sock->sk;
+
+	if (!sk)
+		return 1;
+
+	nr_socket_post_create += !bpf_test_sockopt(sk, sk);
+	nr_binddev += !binddev_test(sk);
+
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int _getsockopt(struct bpf_sockopt *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	int *optval = ctx->optval;
+	struct tcp_sock *tp;
+
+	if (!sk || ctx->level != SOL_TCP || ctx->optname != TCP_BPF_SOCK_OPS_CB_FLAGS)
+		return 1;
+
+	tp = bpf_core_cast(sk, struct tcp_sock);
+	if (ctx->optval + sizeof(int) <= ctx->optval_end) {
+		*optval = tp->bpf_sock_ops_cb_flags;
+		ctx->retval = 0;
+	}
+	return 1;
+}
+
+SEC("sockops")
+int skops_sockopt(struct bpf_sock_ops *skops)
+{
+	struct bpf_sock *bpf_sk = skops->sk;
+	struct sock *sk;
+	int flags;
+
+	if (!bpf_sk)
+		return 1;
+
+	sk = (struct sock *)bpf_skc_to_tcp_sock(bpf_sk);
+	if (!sk)
+		return 1;
+
+	switch (skops->op) {
+	case BPF_SOCK_OPS_TCP_LISTEN_CB:
+		nr_listen += !(bpf_test_sockopt(skops, sk) ||
+			       test_tcp_maxseg(skops, sk) ||
+			       test_tcp_saved_syn(skops, sk));
+		break;
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+		nr_connect += !(bpf_test_sockopt(skops, sk) ||
+				test_tcp_maxseg(skops, sk));
+		break;
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		nr_active += !(bpf_test_sockopt(skops, sk) ||
+			       test_tcp_maxseg(skops, sk));
+		break;
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		nr_passive += !(bpf_test_sockopt(skops, sk) ||
+				test_tcp_maxseg(skops, sk) ||
+				test_tcp_saved_syn(skops, sk));
+		flags = skops->bpf_sock_ops_cb_flags | BPF_SOCK_OPS_STATE_CB_FLAG;
+		bpf_setsockopt(skops, SOL_TCP, TCP_BPF_SOCK_OPS_CB_FLAGS, &flags, sizeof(flags));
+		break;
+	case BPF_SOCK_OPS_STATE_CB:
+		if (skops->args[1] == BPF_TCP_CLOSE_WAIT)
+			nr_fin_wait1 += !bpf_test_sockopt(skops, sk);
+		break;
+	}
+
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sk_bypass_prot_mem.c b/tools/testing/selftests/bpf/progs/sk_bypass_prot_mem.c
new file mode 100644
index 000000000000..09a00d11ffcc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sk_bypass_prot_mem.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2025 Google LLC */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <errno.h>
+
+extern int tcp_memory_per_cpu_fw_alloc __ksym;
+extern int udp_memory_per_cpu_fw_alloc __ksym;
+
+int nr_cpus;
+bool tcp_activated, udp_activated;
+long tcp_memory_allocated, udp_memory_allocated;
+
+struct sk_prot {
+	long *memory_allocated;
+	int *memory_per_cpu_fw_alloc;
+};
+
+static int drain_memory_per_cpu_fw_alloc(__u32 i, struct sk_prot *sk_prot_ctx)
+{
+	int *memory_per_cpu_fw_alloc;
+
+	memory_per_cpu_fw_alloc = bpf_per_cpu_ptr(sk_prot_ctx->memory_per_cpu_fw_alloc, i);
+	if (memory_per_cpu_fw_alloc)
+		*sk_prot_ctx->memory_allocated += *memory_per_cpu_fw_alloc;
+
+	return 0;
+}
+
+static long get_memory_allocated(struct sock *_sk, int *memory_per_cpu_fw_alloc)
+{
+	struct sock *sk = bpf_core_cast(_sk, struct sock);
+	struct sk_prot sk_prot_ctx;
+	long memory_allocated;
+
+	/* net_aligned_data.{tcp,udp}_memory_allocated was not available. */
+	memory_allocated = sk->__sk_common.skc_prot->memory_allocated->counter;
+
+	sk_prot_ctx.memory_allocated = &memory_allocated;
+	sk_prot_ctx.memory_per_cpu_fw_alloc = memory_per_cpu_fw_alloc;
+
+	bpf_loop(nr_cpus, drain_memory_per_cpu_fw_alloc, &sk_prot_ctx, 0);
+
+	return memory_allocated;
+}
+
+static void fentry_init_sock(struct sock *sk, bool *activated,
+			     long *memory_allocated, int *memory_per_cpu_fw_alloc)
+{
+	if (!*activated)
+		return;
+
+	*memory_allocated = get_memory_allocated(sk, memory_per_cpu_fw_alloc);
+	*activated = false;
+}
+
+SEC("fentry/tcp_init_sock")
+int BPF_PROG(fentry_tcp_init_sock, struct sock *sk)
+{
+	fentry_init_sock(sk, &tcp_activated,
+			 &tcp_memory_allocated, &tcp_memory_per_cpu_fw_alloc);
+	return 0;
+}
+
+SEC("fentry/udp_init_sock")
+int BPF_PROG(fentry_udp_init_sock, struct sock *sk)
+{
+	fentry_init_sock(sk, &udp_activated,
+			 &udp_memory_allocated, &udp_memory_per_cpu_fw_alloc);
+	return 0;
+}
+
+SEC("cgroup/sock_create")
+int sock_create(struct bpf_sock *ctx)
+{
+	int err, val = 1;
+
+	err = bpf_setsockopt(ctx, SOL_SOCKET, SK_BPF_BYPASS_PROT_MEM,
+			     &val, sizeof(val));
+	if (err)
+		goto err;
+
+	val = 0;
+
+	err = bpf_getsockopt(ctx, SOL_SOCKET, SK_BPF_BYPASS_PROT_MEM,
+			     &val, sizeof(val));
+	if (err)
+		goto err;
+
+	if (val != 1) {
+		err = -EINVAL;
+		goto err;
+	}
+
+	return 1;
+
+err:
+	bpf_set_retval(err);
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sk_storage_omem_uncharge.c b/tools/testing/selftests/bpf/progs/sk_storage_omem_uncharge.c
new file mode 100644
index 000000000000..46d6eb2a3b17
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sk_storage_omem_uncharge.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Facebook */
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+void *local_storage_ptr = NULL;
+void *sk_ptr = NULL;
+int cookie_found = 0;
+__u64 cookie = 0;
+__u32 omem = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_storage SEC(".maps");
+
+SEC("fexit/bpf_local_storage_destroy")
+int BPF_PROG(bpf_local_storage_destroy, struct bpf_local_storage *local_storage)
+{
+	struct sock *sk;
+
+	if (local_storage_ptr != local_storage)
+		return 0;
+
+	sk = bpf_core_cast(sk_ptr, struct sock);
+	if (sk->sk_cookie.counter != cookie)
+		return 0;
+
+	cookie_found++;
+	omem = sk->sk_omem_alloc.counter;
+	local_storage_ptr = NULL;
+
+	return 0;
+}
+
+SEC("fentry/inet6_sock_destruct")
+int BPF_PROG(inet6_sock_destruct, struct sock *sk)
+{
+	int *value;
+
+	if (!cookie || sk->sk_cookie.counter != cookie)
+		return 0;
+
+	value = bpf_sk_storage_get(&sk_storage, sk, 0, 0);
+	if (value && *value == 0xdeadbeef) {
+		cookie_found++;
+		sk_ptr = sk;
+		local_storage_ptr = sk->sk_bpf_storage;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/skb_load_bytes.c b/tools/testing/selftests/bpf/progs/skb_load_bytes.c
new file mode 100644
index 000000000000..e4252fd973be
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/skb_load_bytes.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 load_offset = 0;
+int test_result = 0;
+
+SEC("tc")
+int skb_process(struct __sk_buff *skb)
+{
+	char buf[16];
+
+	test_result = bpf_skb_load_bytes(skb, load_offset, buf, 10);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/skb_pkt_end.c b/tools/testing/selftests/bpf/progs/skb_pkt_end.c
new file mode 100644
index 000000000000..3bb4451524a1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/skb_pkt_end.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef BPF_NO_PRESERVE_ACCESS_INDEX
+#define BPF_NO_PRESERVE_ACCESS_INDEX
+#endif
+#include <vmlinux.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+
+#define INLINE __always_inline
+
+#define skb_shorter(skb, len) ((void *)(long)(skb)->data + (len) > (void *)(long)skb->data_end)
+
+#define ETH_IPV4_TCP_SIZE (14 + sizeof(struct iphdr) + sizeof(struct tcphdr))
+
+static INLINE struct iphdr *get_iphdr(struct __sk_buff *skb)
+{
+	struct iphdr *ip = NULL;
+	struct ethhdr *eth;
+
+	if (skb_shorter(skb, ETH_IPV4_TCP_SIZE))
+		goto out;
+
+	eth = (void *)(long)skb->data;
+	ip = (void *)(eth + 1);
+
+out:
+	return ip;
+}
+
+SEC("tc")
+int main_prog(struct __sk_buff *skb)
+{
+	struct iphdr *ip = NULL;
+	struct tcphdr *tcp;
+	__u8 proto = 0;
+	int urg_ptr;
+	u32 offset;
+
+	if (!(ip = get_iphdr(skb)))
+		goto out;
+
+	proto = ip->protocol;
+
+	if (proto != IPPROTO_TCP)
+		goto out;
+
+	tcp = (void*)(ip + 1);
+	if (tcp->dest != 0)
+		goto out;
+	if (!tcp)
+		goto out;
+
+	urg_ptr = tcp->urg_ptr;
+
+	/* Checksum validation part */
+	proto++;
+	offset = sizeof(struct ethhdr) + offsetof(struct iphdr, protocol);
+	bpf_skb_store_bytes(skb, offset, &proto, sizeof(proto), BPF_F_RECOMPUTE_CSUM);
+
+	return urg_ptr;
+out:
+	return -1;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sock_addr_kern.c b/tools/testing/selftests/bpf/progs/sock_addr_kern.c
new file mode 100644
index 000000000000..84ad515eafd6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sock_addr_kern.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("syscall")
+int init_sock(struct init_sock_args *args)
+{
+	bpf_kfunc_init_sock(args);
+
+	return 0;
+}
+
+SEC("syscall")
+int close_sock(void *ctx)
+{
+	bpf_kfunc_close_sock();
+
+	return 0;
+}
+
+SEC("syscall")
+int kernel_connect(struct addr_args *args)
+{
+	return bpf_kfunc_call_kernel_connect(args);
+}
+
+SEC("syscall")
+int kernel_bind(struct addr_args *args)
+{
+	return bpf_kfunc_call_kernel_bind(args);
+}
+
+SEC("syscall")
+int kernel_listen(struct addr_args *args)
+{
+	return bpf_kfunc_call_kernel_listen();
+}
+
+SEC("syscall")
+int kernel_sendmsg(struct sendmsg_args *args)
+{
+	return bpf_kfunc_call_kernel_sendmsg(args);
+}
+
+SEC("syscall")
+int sock_sendmsg(struct sendmsg_args *args)
+{
+	return bpf_kfunc_call_sock_sendmsg(args);
+}
+
+SEC("syscall")
+int kernel_getsockname(struct addr_args *args)
+{
+	return bpf_kfunc_call_kernel_getsockname(args);
+}
+
+SEC("syscall")
+int kernel_getpeername(struct addr_args *args)
+{
+	return bpf_kfunc_call_kernel_getpeername(args);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sock_destroy_prog.c b/tools/testing/selftests/bpf/progs/sock_destroy_prog.c
new file mode 100644
index 000000000000..9e0bf7a54cec
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sock_destroy_prog.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bpf_tracing_net.h"
+
+__be16 serv_port = 0;
+
+int bpf_sock_destroy(struct sock_common *sk) __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} tcp_conn_sockets SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} udp_conn_sockets SEC(".maps");
+
+SEC("cgroup/connect6")
+int sock_connect(struct bpf_sock_addr *ctx)
+{
+	__u64 sock_cookie = 0;
+	int key = 0;
+	__u32 keyc = 0;
+
+	if (ctx->family != AF_INET6 || ctx->user_family != AF_INET6)
+		return 1;
+
+	sock_cookie = bpf_get_socket_cookie(ctx);
+	if (ctx->protocol == IPPROTO_TCP)
+		bpf_map_update_elem(&tcp_conn_sockets, &key, &sock_cookie, 0);
+	else if (ctx->protocol == IPPROTO_UDP)
+		bpf_map_update_elem(&udp_conn_sockets, &keyc, &sock_cookie, 0);
+	else
+		return 1;
+
+	return 1;
+}
+
+SEC("iter/tcp")
+int iter_tcp6_client(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = ctx->sk_common;
+	__u64 sock_cookie = 0;
+	__u64 *val;
+	int key = 0;
+
+	if (!sk_common)
+		return 0;
+
+	if (sk_common->skc_family != AF_INET6)
+		return 0;
+
+	sock_cookie  = bpf_get_socket_cookie(sk_common);
+	val = bpf_map_lookup_elem(&tcp_conn_sockets, &key);
+	if (!val)
+		return 0;
+	/* Destroy connected client sockets. */
+	if (sock_cookie == *val)
+		bpf_sock_destroy(sk_common);
+
+	return 0;
+}
+
+SEC("iter/tcp")
+int iter_tcp6_server(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = ctx->sk_common;
+	const struct inet_connection_sock *icsk;
+	const struct inet_sock *inet;
+	struct tcp6_sock *tcp_sk;
+	__be16 srcp;
+
+	if (!sk_common)
+		return 0;
+
+	if (sk_common->skc_family != AF_INET6)
+		return 0;
+
+	tcp_sk = bpf_skc_to_tcp6_sock(sk_common);
+	if (!tcp_sk)
+		return 0;
+
+	icsk = &tcp_sk->tcp.inet_conn;
+	inet = &icsk->icsk_inet;
+	srcp = inet->inet_sport;
+
+	/* Destroy server sockets. */
+	if (srcp == serv_port)
+		bpf_sock_destroy(sk_common);
+
+	return 0;
+}
+
+
+SEC("iter/udp")
+int iter_udp6_client(struct bpf_iter__udp *ctx)
+{
+	struct udp_sock *udp_sk = ctx->udp_sk;
+	struct sock *sk = (struct sock *) udp_sk;
+	__u64 sock_cookie = 0, *val;
+	int key = 0;
+
+	if (!sk)
+		return 0;
+
+	sock_cookie  = bpf_get_socket_cookie(sk);
+	val = bpf_map_lookup_elem(&udp_conn_sockets, &key);
+	if (!val)
+		return 0;
+	/* Destroy connected client sockets. */
+	if (sock_cookie == *val)
+		bpf_sock_destroy((struct sock_common *)sk);
+
+	return 0;
+}
+
+SEC("iter/udp")
+int iter_udp6_server(struct bpf_iter__udp *ctx)
+{
+	struct udp_sock *udp_sk = ctx->udp_sk;
+	struct sock *sk = (struct sock *) udp_sk;
+	struct inet_sock *inet;
+	__be16 srcp;
+
+	if (!sk)
+		return 0;
+
+	inet = &udp_sk->inet;
+	srcp = inet->inet_sport;
+	if (srcp == serv_port)
+		bpf_sock_destroy((struct sock_common *)sk);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sock_destroy_prog_fail.c b/tools/testing/selftests/bpf/progs/sock_destroy_prog_fail.c
new file mode 100644
index 000000000000..dd6850b58e25
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sock_destroy_prog_fail.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int bpf_sock_destroy(struct sock_common *sk) __ksym;
+
+SEC("tp_btf/tcp_destroy_sock")
+__failure __msg("calling kernel function bpf_sock_destroy is not allowed")
+int BPF_PROG(trace_tcp_destroy_sock, struct sock *sk)
+{
+	/* should not load */
+	bpf_sock_destroy((struct sock_common *)sk);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/sock_iter_batch.c b/tools/testing/selftests/bpf/progs/sock_iter_batch.c
new file mode 100644
index 000000000000..77966ded5467
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sock_iter_batch.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2024 Meta
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_tracing_net.h"
+#include "bpf_kfuncs.h"
+
+#define ATTR __always_inline
+#include "test_jhash.h"
+
+static bool ipv6_addr_loopback(const struct in6_addr *a)
+{
+	return (a->s6_addr32[0] | a->s6_addr32[1] |
+		a->s6_addr32[2] | (a->s6_addr32[3] ^ bpf_htonl(1))) == 0;
+}
+
+static bool ipv4_addr_loopback(__be32 a)
+{
+	return a == bpf_ntohl(0x7f000001);
+}
+
+volatile const unsigned int sf;
+volatile const unsigned int ss;
+volatile const __u16 ports[2];
+unsigned int bucket[2];
+
+SEC("iter/tcp")
+int iter_tcp_soreuse(struct bpf_iter__tcp *ctx)
+{
+	struct sock *sk = (struct sock *)ctx->sk_common;
+	struct inet_hashinfo *hinfo;
+	unsigned int hash;
+	__u64 sock_cookie;
+	struct net *net;
+	int idx;
+
+	if (!sk)
+		return 0;
+
+	sock_cookie = bpf_get_socket_cookie(sk);
+	sk = bpf_core_cast(sk, struct sock);
+	if (sk->sk_family != sf ||
+	    (ss && sk->sk_state != ss) ||
+	    (sk->sk_family == AF_INET6 ?
+	    !ipv6_addr_loopback(&sk->sk_v6_rcv_saddr) :
+	    !ipv4_addr_loopback(sk->sk_rcv_saddr)))
+		return 0;
+
+	if (sk->sk_num == ports[0])
+		idx = 0;
+	else if (sk->sk_num == ports[1])
+		idx = 1;
+	else if (!ports[0] && !ports[1])
+		idx = 0;
+	else
+		return 0;
+
+	/* bucket selection as in inet_lhash2_bucket_sk() */
+	net = sk->sk_net.net;
+	hash = jhash2(sk->sk_v6_rcv_saddr.s6_addr32, 4, net->hash_mix);
+	hash ^= sk->sk_num;
+	hinfo = net->ipv4.tcp_death_row.hashinfo;
+	bucket[idx] = hash & hinfo->lhash2_mask;
+	bpf_seq_write(ctx->meta->seq, &idx, sizeof(idx));
+	bpf_seq_write(ctx->meta->seq, &sock_cookie, sizeof(sock_cookie));
+
+	return 0;
+}
+
+volatile const __u64 destroy_cookie;
+
+SEC("iter/tcp")
+int iter_tcp_destroy(struct bpf_iter__tcp *ctx)
+{
+	struct sock_common *sk_common = (struct sock_common *)ctx->sk_common;
+	__u64 sock_cookie;
+
+	if (!sk_common)
+		return 0;
+
+	sock_cookie = bpf_get_socket_cookie(sk_common);
+	if (sock_cookie != destroy_cookie)
+		return 0;
+
+	bpf_sock_destroy(sk_common);
+	bpf_seq_write(ctx->meta->seq, &sock_cookie, sizeof(sock_cookie));
+
+	return 0;
+}
+
+#define udp_sk(ptr) container_of(ptr, struct udp_sock, inet.sk)
+
+SEC("iter/udp")
+int iter_udp_soreuse(struct bpf_iter__udp *ctx)
+{
+	struct sock *sk = (struct sock *)ctx->udp_sk;
+	struct udp_table *udptable;
+	__u64 sock_cookie;
+	int idx;
+
+	if (!sk)
+		return 0;
+
+	sock_cookie = bpf_get_socket_cookie(sk);
+	sk = bpf_core_cast(sk, struct sock);
+	if (sk->sk_family != sf ||
+	    (sk->sk_family == AF_INET6 ?
+	    !ipv6_addr_loopback(&sk->sk_v6_rcv_saddr) :
+	    !ipv4_addr_loopback(sk->sk_rcv_saddr)))
+		return 0;
+
+	if (sk->sk_num == ports[0])
+		idx = 0;
+	else if (sk->sk_num == ports[1])
+		idx = 1;
+	else if (!ports[0] && !ports[1])
+		idx = 0;
+	else
+		return 0;
+
+	/* bucket selection as in udp_hashslot2() */
+	udptable = sk->sk_net.net->ipv4.udp_table;
+	bucket[idx] = udp_sk(sk)->udp_portaddr_hash & udptable->mask;
+	bpf_seq_write(ctx->meta->seq, &idx, sizeof(idx));
+	bpf_seq_write(ctx->meta->seq, &sock_cookie, sizeof(sock_cookie));
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/socket_cookie_prog.c b/tools/testing/selftests/bpf/progs/socket_cookie_prog.c
new file mode 100644
index 000000000000..35630a5aaf5f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/socket_cookie_prog.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+
+#define AF_INET6 10
+
+struct socket_cookie {
+	__u64 cookie_key;
+	__u32 cookie_value;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct socket_cookie);
+} socket_cookies SEC(".maps");
+
+/*
+ * These three programs get executed in a row on connect() syscalls. The
+ * userspace side of the test creates a client socket, issues a connect() on it
+ * and then checks that the local storage associated with this socket has:
+ * cookie_value == local_port << 8 | 0xFF
+ * The different parts of this cookie_value are appended by those hooks if they
+ * all agree on the output of bpf_get_socket_cookie().
+ */
+SEC("cgroup/connect6")
+int set_cookie(struct bpf_sock_addr *ctx)
+{
+	struct socket_cookie *p;
+
+	if (ctx->family != AF_INET6 || ctx->user_family != AF_INET6)
+		return 1;
+
+	p = bpf_sk_storage_get(&socket_cookies, ctx->sk, 0,
+			       BPF_SK_STORAGE_GET_F_CREATE);
+	if (!p)
+		return 1;
+
+	p->cookie_value = 0xF;
+	p->cookie_key = bpf_get_socket_cookie(ctx);
+
+	return 1;
+}
+
+SEC("sockops")
+int update_cookie_sockops(struct bpf_sock_ops *ctx)
+{
+	struct bpf_sock *sk = ctx->sk;
+	struct socket_cookie *p;
+
+	if (ctx->family != AF_INET6)
+		return 1;
+
+	if (ctx->op != BPF_SOCK_OPS_TCP_CONNECT_CB)
+		return 1;
+
+	if (!sk)
+		return 1;
+
+	p = bpf_sk_storage_get(&socket_cookies, sk, 0, 0);
+	if (!p)
+		return 1;
+
+	if (p->cookie_key != bpf_get_socket_cookie(ctx))
+		return 1;
+
+	p->cookie_value |= (ctx->local_port << 8);
+
+	return 1;
+}
+
+SEC("fexit/inet_stream_connect")
+int BPF_PROG(update_cookie_tracing, struct socket *sock,
+	     struct sockaddr *uaddr, int addr_len, int flags)
+{
+	struct socket_cookie *p;
+
+	if (uaddr->sa_family != AF_INET6)
+		return 0;
+
+	p = bpf_sk_storage_get(&socket_cookies, sock->sk, 0, 0);
+	if (!p)
+		return 0;
+
+	if (p->cookie_key != bpf_get_socket_cookie(sock->sk))
+		return 0;
+
+	p->cookie_value |= 0xF0;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c
new file mode 100644
index 000000000000..c9abfe3a11af
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockmap_parse_prog.c
@@ -0,0 +1,33 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("sk_skb1")
+int bpf_prog1(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long) skb->data_end;
+	void *data = (void *)(long) skb->data;
+	__u8 *d = data;
+	int err;
+
+	if (data + 10 > data_end) {
+		err = bpf_skb_pull_data(skb, 10);
+		if (err)
+			return SK_DROP;
+
+		data_end = (void *)(long)skb->data_end;
+		data = (void *)(long)skb->data;
+		if (data + 10 > data_end)
+			return SK_DROP;
+	}
+
+	/* This write/read is a bit pointless but tests the verifier and
+	 * strparser handler for read/write pkt data and access into sk
+	 * fields.
+	 */
+	d = data;
+	d[7] = 1;
+	return skb->len;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c b/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c
new file mode 100644
index 000000000000..80632954c5a1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockmap_tcp_msg_prog.c
@@ -0,0 +1,12 @@
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+SEC("sk_msg1")
+int bpf_prog1(struct sk_msg_md *msg)
+{
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c b/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c
new file mode 100644
index 000000000000..0660f29dca95
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockmap_verdict_prog.c
@@ -0,0 +1,67 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_rx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_tx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_msg SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_break SEC(".maps");
+
+SEC("sk_skb2")
+int bpf_prog2(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long) skb->data_end;
+	void *data = (void *)(long) skb->data;
+	__u32 lport = skb->local_port;
+	__u32 rport = skb->remote_port;
+	__u8 *d = data;
+	__u8 sk, map;
+
+	__sink(lport);
+	__sink(rport);
+
+	if (data + 8 > data_end)
+		return SK_DROP;
+
+	map = d[0];
+	sk = d[1];
+
+	d[0] = 0xd;
+	d[1] = 0xe;
+	d[2] = 0xa;
+	d[3] = 0xd;
+	d[4] = 0xb;
+	d[5] = 0xe;
+	d[6] = 0xe;
+	d[7] = 0xf;
+
+	if (!map)
+		return bpf_sk_redirect_map(skb, &sock_map_rx, sk, 0);
+	return bpf_sk_redirect_map(skb, &sock_map_tx, sk, 0);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/sockopt_inherit.c b/tools/testing/selftests/bpf/progs/sockopt_inherit.c
new file mode 100644
index 000000000000..a3434b840928
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockopt_inherit.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define SOL_CUSTOM			0xdeadbeef
+#define CUSTOM_INHERIT1			0
+#define CUSTOM_INHERIT2			1
+#define CUSTOM_LISTENER			2
+
+__s32 page_size = 0;
+
+struct sockopt_inherit {
+	__u8 val;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC | BPF_F_CLONE);
+	__type(key, int);
+	__type(value, struct sockopt_inherit);
+} cloned1_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC | BPF_F_CLONE);
+	__type(key, int);
+	__type(value, struct sockopt_inherit);
+} cloned2_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct sockopt_inherit);
+} listener_only_map SEC(".maps");
+
+static __inline struct sockopt_inherit *get_storage(struct bpf_sockopt *ctx)
+{
+	if (ctx->optname == CUSTOM_INHERIT1)
+		return bpf_sk_storage_get(&cloned1_map, ctx->sk, 0,
+					  BPF_SK_STORAGE_GET_F_CREATE);
+	else if (ctx->optname == CUSTOM_INHERIT2)
+		return bpf_sk_storage_get(&cloned2_map, ctx->sk, 0,
+					  BPF_SK_STORAGE_GET_F_CREATE);
+	else
+		return bpf_sk_storage_get(&listener_only_map, ctx->sk, 0,
+					  BPF_SK_STORAGE_GET_F_CREATE);
+}
+
+SEC("cgroup/getsockopt")
+int _getsockopt(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	struct sockopt_inherit *storage;
+	__u8 *optval = ctx->optval;
+
+	if (ctx->level != SOL_CUSTOM)
+		goto out; /* only interested in SOL_CUSTOM */
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	storage = get_storage(ctx);
+	if (!storage)
+		return 0; /* EPERM, couldn't get sk storage */
+
+	ctx->retval = 0; /* Reset system call return value to zero */
+
+	optval[0] = storage->val;
+	ctx->optlen = 1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
+
+SEC("cgroup/setsockopt")
+int _setsockopt(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	struct sockopt_inherit *storage;
+	__u8 *optval = ctx->optval;
+
+	if (ctx->level != SOL_CUSTOM)
+		goto out; /* only interested in SOL_CUSTOM */
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	storage = get_storage(ctx);
+	if (!storage)
+		return 0; /* EPERM, couldn't get sk storage */
+
+	storage->val = optval[0];
+	ctx->optlen = -1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/sockopt_multi.c b/tools/testing/selftests/bpf/progs/sockopt_multi.c
new file mode 100644
index 000000000000..db67278e12d4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockopt_multi.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <netinet/in.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__s32 page_size = 0;
+
+SEC("cgroup/getsockopt")
+int _getsockopt_child(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	__u8 *optval = ctx->optval;
+
+	if (ctx->level != SOL_IP || ctx->optname != IP_TOS)
+		goto out;
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	if (optval[0] != 0x80)
+		return 0; /* EPERM, unexpected optval from the kernel */
+
+	ctx->retval = 0; /* Reset system call return value to zero */
+
+	optval[0] = 0x90;
+	ctx->optlen = 1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
+
+SEC("cgroup/getsockopt")
+int _getsockopt_parent(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	__u8 *optval = ctx->optval;
+
+	if (ctx->level != SOL_IP || ctx->optname != IP_TOS)
+		goto out;
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	if (optval[0] != 0x90)
+		return 0; /* EPERM, unexpected optval from the kernel */
+
+	ctx->retval = 0; /* Reset system call return value to zero */
+
+	optval[0] = 0xA0;
+	ctx->optlen = 1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
+
+SEC("cgroup/setsockopt")
+int _setsockopt(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	__u8 *optval = ctx->optval;
+
+	if (ctx->level != SOL_IP || ctx->optname != IP_TOS)
+		goto out;
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	optval[0] += 0x10;
+	ctx->optlen = 1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c b/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c
new file mode 100644
index 000000000000..5c3614333b01
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockopt_qos_to_cc.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "bpf_tracing_net.h"
+
+char _license[] SEC("license") = "GPL";
+
+__s32 page_size = 0;
+
+const char cc_reno[TCP_CA_NAME_MAX] = "reno";
+const char cc_cubic[TCP_CA_NAME_MAX] = "cubic";
+
+SEC("cgroup/setsockopt")
+int sockopt_qos_to_cc(struct bpf_sockopt *ctx)
+{
+	void *optval_end = ctx->optval_end;
+	int *optval = ctx->optval;
+	char buf[TCP_CA_NAME_MAX];
+
+	if (ctx->level != SOL_IPV6 || ctx->optname != IPV6_TCLASS)
+		goto out;
+
+	if (optval + 1 > optval_end)
+		return 0; /* EPERM, bounds check */
+
+	if (bpf_getsockopt(ctx->sk, SOL_TCP, TCP_CONGESTION, &buf, sizeof(buf)))
+		return 0;
+
+	if (bpf_strncmp(buf, sizeof(buf), cc_cubic))
+		return 0;
+
+	if (*optval == 0x2d) {
+		if (bpf_setsockopt(ctx->sk, SOL_TCP, TCP_CONGESTION, (void *)&cc_reno,
+				sizeof(cc_reno)))
+			return 0;
+	}
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/sockopt_sk.c b/tools/testing/selftests/bpf/progs/sockopt_sk.c
new file mode 100644
index 000000000000..cb990a7d3d45
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/sockopt_sk.c
@@ -0,0 +1,238 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <linux/tcp.h>
+#include <linux/bpf.h>
+#include <netinet/in.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+int page_size = 0; /* userspace should set it */
+
+#ifndef SOL_TCP
+#define SOL_TCP IPPROTO_TCP
+#endif
+
+#define SOL_CUSTOM			0xdeadbeef
+
+struct sockopt_sk {
+	__u8 val;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct sockopt_sk);
+} socket_storage_map SEC(".maps");
+
+SEC("cgroup/getsockopt")
+int _getsockopt(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	__u8 *optval = ctx->optval;
+	struct sockopt_sk *storage;
+	struct bpf_sock *sk;
+
+	/* Bypass AF_NETLINK. */
+	sk = ctx->sk;
+	if (sk && sk->family == AF_NETLINK)
+		goto out;
+
+	/* Make sure bpf_get_netns_cookie is callable.
+	 */
+	if (bpf_get_netns_cookie(NULL) == 0)
+		return 0;
+
+	if (bpf_get_netns_cookie(ctx) == 0)
+		return 0;
+
+	if (ctx->level == SOL_IP && ctx->optname == IP_TOS) {
+		/* Not interested in SOL_IP:IP_TOS;
+		 * let next BPF program in the cgroup chain or kernel
+		 * handle it.
+		 */
+		goto out;
+	}
+
+	if (ctx->level == SOL_SOCKET && ctx->optname == SO_SNDBUF) {
+		/* Not interested in SOL_SOCKET:SO_SNDBUF;
+		 * let next BPF program in the cgroup chain or kernel
+		 * handle it.
+		 */
+		goto out;
+	}
+
+	if (ctx->level == SOL_TCP && ctx->optname == TCP_CONGESTION) {
+		/* Not interested in SOL_TCP:TCP_CONGESTION;
+		 * let next BPF program in the cgroup chain or kernel
+		 * handle it.
+		 */
+		goto out;
+	}
+
+	if (ctx->level == SOL_TCP && ctx->optname == TCP_ZEROCOPY_RECEIVE) {
+		/* Verify that TCP_ZEROCOPY_RECEIVE triggers.
+		 * It has a custom implementation for performance
+		 * reasons.
+		 */
+
+		/* Check that optval contains address (__u64) */
+		if (optval + sizeof(__u64) > optval_end)
+			return 0; /* bounds check */
+
+		if (((struct tcp_zerocopy_receive *)optval)->address != 0)
+			return 0; /* unexpected data */
+
+		goto out;
+	}
+
+	if (ctx->level == SOL_IP && ctx->optname == IP_FREEBIND) {
+		if (optval + 1 > optval_end)
+			return 0; /* bounds check */
+
+		ctx->retval = 0; /* Reset system call return value to zero */
+
+		/* Always export 0x55 */
+		optval[0] = 0x55;
+		ctx->optlen = 1;
+
+		/* Userspace buffer is PAGE_SIZE * 2, but BPF
+		 * program can only see the first PAGE_SIZE
+		 * bytes of data.
+		 */
+		if (optval_end - optval != page_size)
+			return 0; /* unexpected data size */
+
+		return 1;
+	}
+
+	if (ctx->level != SOL_CUSTOM)
+		return 0; /* deny everything except custom level */
+
+	if (optval + 1 > optval_end)
+		return 0; /* bounds check */
+
+	storage = bpf_sk_storage_get(&socket_storage_map, ctx->sk, 0,
+				     BPF_SK_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 0; /* couldn't get sk storage */
+
+	if (!ctx->retval)
+		return 0; /* kernel should not have handled
+			   * SOL_CUSTOM, something is wrong!
+			   */
+	ctx->retval = 0; /* Reset system call return value to zero */
+
+	optval[0] = storage->val;
+	ctx->optlen = 1;
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
+
+SEC("cgroup/setsockopt")
+int _setsockopt(struct bpf_sockopt *ctx)
+{
+	__u8 *optval_end = ctx->optval_end;
+	__u8 *optval = ctx->optval;
+	struct sockopt_sk *storage;
+	struct bpf_sock *sk;
+
+	/* Bypass AF_NETLINK. */
+	sk = ctx->sk;
+	if (sk && sk->family == AF_NETLINK)
+		goto out;
+
+	/* Make sure bpf_get_netns_cookie is callable.
+	 */
+	if (bpf_get_netns_cookie(NULL) == 0)
+		return 0;
+
+	if (bpf_get_netns_cookie(ctx) == 0)
+		return 0;
+
+	if (ctx->level == SOL_IP && ctx->optname == IP_TOS) {
+		/* Not interested in SOL_IP:IP_TOS;
+		 * let next BPF program in the cgroup chain or kernel
+		 * handle it.
+		 */
+		ctx->optlen = 0; /* bypass optval>PAGE_SIZE */
+		return 1;
+	}
+
+	if (ctx->level == SOL_SOCKET && ctx->optname == SO_SNDBUF) {
+		/* Overwrite SO_SNDBUF value */
+
+		if (optval + sizeof(__u32) > optval_end)
+			return 0; /* bounds check */
+
+		*(__u32 *)optval = 0x55AA;
+		ctx->optlen = 4;
+
+		return 1;
+	}
+
+	if (ctx->level == SOL_TCP && ctx->optname == TCP_CONGESTION) {
+		/* Always use cubic */
+
+		if (optval + 5 > optval_end)
+			return 0; /* bounds check */
+
+		memcpy(optval, "cubic", 5);
+		ctx->optlen = 5;
+
+		return 1;
+	}
+
+	if (ctx->level == SOL_IP && ctx->optname == IP_FREEBIND) {
+		/* Original optlen is larger than PAGE_SIZE. */
+		if (ctx->optlen != page_size * 2)
+			return 0; /* unexpected data size */
+
+		if (optval + 1 > optval_end)
+			return 0; /* bounds check */
+
+		/* Make sure we can trim the buffer. */
+		optval[0] = 0;
+		ctx->optlen = 1;
+
+		/* Usepace buffer is PAGE_SIZE * 2, but BPF
+		 * program can only see the first PAGE_SIZE
+		 * bytes of data.
+		 */
+		if (optval_end - optval != page_size)
+			return 0; /* unexpected data size */
+
+		return 1;
+	}
+
+	if (ctx->level != SOL_CUSTOM)
+		return 0; /* deny everything except custom level */
+
+	if (optval + 1 > optval_end)
+		return 0; /* bounds check */
+
+	storage = bpf_sk_storage_get(&socket_storage_map, ctx->sk, 0,
+				     BPF_SK_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 0; /* couldn't get sk storage */
+
+	storage->val = optval[0];
+	ctx->optlen = -1; /* BPF has consumed this option, don't call kernel
+			   * setsockopt handler.
+			   */
+
+	return 1;
+
+out:
+	/* optval larger than PAGE_SIZE use kernel's buffer. */
+	if (ctx->optlen > page_size)
+		ctx->optlen = 0;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/stacktrace_ips.c b/tools/testing/selftests/bpf/progs/stacktrace_ips.c
new file mode 100644
index 000000000000..a96c8150d7f5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stacktrace_ips.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#ifndef PERF_MAX_STACK_DEPTH
+#define PERF_MAX_STACK_DEPTH         127
+#endif
+
+typedef __u64 stack_trace_t[PERF_MAX_STACK_DEPTH];
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+extern bool CONFIG_UNWINDER_ORC __kconfig __weak;
+
+/*
+ * This function is here to have CONFIG_UNWINDER_ORC
+ * used and added to object BTF.
+ */
+int unused(void)
+{
+	return CONFIG_UNWINDER_ORC ? 0 : 1;
+}
+
+__u32 stack_key;
+
+SEC("kprobe.multi")
+int kprobe_multi_test(struct pt_regs *ctx)
+{
+	stack_key = bpf_get_stackid(ctx, &stackmap, 0);
+	return 0;
+}
+
+SEC("raw_tp/bpf_testmod_test_read")
+int rawtp_test(void *ctx)
+{
+	/* Skip ebpf program entry in the stack. */
+	stack_key = bpf_get_stackid(ctx, &stackmap, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/stacktrace_map.c b/tools/testing/selftests/bpf/progs/stacktrace_map.c
new file mode 100644
index 000000000000..0c77df05be7f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stacktrace_map.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+#ifndef PERF_MAX_STACK_DEPTH
+#define PERF_MAX_STACK_DEPTH         127
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} control_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, __u32);
+} stackid_hmap SEC(".maps");
+
+typedef __u64 stack_trace_t[PERF_MAX_STACK_DEPTH];
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stack_amap SEC(".maps");
+
+/* taken from /sys/kernel/tracing/events/sched/sched_switch/format */
+struct sched_switch_args {
+	unsigned long long pad;
+	char prev_comm[TASK_COMM_LEN];
+	int prev_pid;
+	int prev_prio;
+	long long prev_state;
+	char next_comm[TASK_COMM_LEN];
+	int next_pid;
+	int next_prio;
+};
+
+__u32 stack_id;
+SEC("tracepoint/sched/sched_switch")
+int oncpu(struct sched_switch_args *ctx)
+{
+	__u32 max_len = PERF_MAX_STACK_DEPTH * sizeof(__u64);
+	__u32 key = 0, val = 0, *value_p;
+	void *stack_p;
+
+	value_p = bpf_map_lookup_elem(&control_map, &key);
+	if (value_p && *value_p)
+		return 0; /* skip if non-zero *value_p */
+
+	/* The size of stackmap and stackid_hmap should be the same */
+	key = bpf_get_stackid(ctx, &stackmap, 0);
+	if ((int)key >= 0) {
+		stack_id = key;
+		bpf_map_update_elem(&stackid_hmap, &key, &val, 0);
+		stack_p = bpf_map_lookup_elem(&stack_amap, &key);
+		if (stack_p)
+			bpf_get_stack(ctx, stack_p, max_len, 0);
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/stacktrace_map_skip.c b/tools/testing/selftests/bpf/progs/stacktrace_map_skip.c
new file mode 100644
index 000000000000..2eb297df3dd6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stacktrace_map_skip.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+#define TEST_STACK_DEPTH	2
+#define TEST_MAX_ENTRIES	16384
+
+typedef __u64 stack_trace_t[TEST_STACK_DEPTH];
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, TEST_MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, TEST_MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, __u32);
+} stackid_hmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, TEST_MAX_ENTRIES);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stack_amap SEC(".maps");
+
+int pid = 0;
+int control = 0;
+int failed = 0;
+
+SEC("tracepoint/sched/sched_switch")
+int oncpu(struct trace_event_raw_sched_switch *ctx)
+{
+	__u32 max_len = TEST_STACK_DEPTH * sizeof(__u64);
+	__u32 key = 0, val = 0;
+	__u64 *stack_p;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	if (control)
+		return 0;
+
+	/* it should allow skipping whole buffer size entries */
+	key = bpf_get_stackid(ctx, &stackmap, TEST_STACK_DEPTH);
+	if ((int)key >= 0) {
+		/* The size of stackmap and stack_amap should be the same */
+		bpf_map_update_elem(&stackid_hmap, &key, &val, 0);
+		stack_p = bpf_map_lookup_elem(&stack_amap, &key);
+		if (stack_p) {
+			bpf_get_stack(ctx, stack_p, max_len, TEST_STACK_DEPTH);
+			/* it wrongly skipped all the entries and filled zero */
+			if (stack_p[0] == 0)
+				failed = 1;
+		}
+	} else {
+		/* old kernel doesn't support skipping that many entries */
+		failed = 2;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/stream.c b/tools/testing/selftests/bpf/progs/stream.c
new file mode 100644
index 000000000000..4a5bd852f10c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stream.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+#include "bpf_arena_common.h"
+
+struct arr_elem {
+	struct bpf_res_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct arr_elem);
+} arrmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 1); /* number of pages */
+} arena SEC(".maps");
+
+struct elem {
+	struct bpf_timer timer;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+#define ENOSPC 28
+#define _STR "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+
+int size;
+u64 fault_addr;
+void *arena_ptr;
+
+SEC("syscall")
+__success __retval(0)
+int stream_exhaust(void *ctx)
+{
+	/* Use global variable for loop convergence. */
+	size = 0;
+	bpf_repeat(BPF_MAX_LOOPS) {
+		if (bpf_stream_printk(BPF_STDOUT, _STR) == -ENOSPC && size == 99954)
+			return 0;
+		size += sizeof(_STR) - 1;
+	}
+	return 1;
+}
+
+SEC("syscall")
+__arch_x86_64
+__arch_arm64
+__arch_s390x
+__success __retval(0)
+__stderr("ERROR: Timeout detected for may_goto instruction")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_cond_break(void *ctx)
+{
+	while (can_loop)
+		;
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+__stderr("ERROR: AA or ABBA deadlock detected for bpf_res_spin_lock")
+__stderr("{{Attempted lock   = (0x[0-9a-fA-F]+)\n"
+"Total held locks = 1\n"
+"Held lock\\[ 0\\] = \\1}}")
+__stderr("...")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_deadlock(void *ctx)
+{
+	struct bpf_res_spin_lock *lock, *nlock;
+
+	lock = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!lock)
+		return 1;
+	nlock = bpf_map_lookup_elem(&arrmap, &(int){0});
+	if (!nlock)
+		return 1;
+	if (bpf_res_spin_lock(lock))
+		return 1;
+	if (bpf_res_spin_lock(nlock)) {
+		bpf_res_spin_unlock(lock);
+		return 0;
+	}
+	bpf_res_spin_unlock(nlock);
+	bpf_res_spin_unlock(lock);
+	return 1;
+}
+
+SEC("syscall")
+__success __retval(0)
+int stream_syscall(void *ctx)
+{
+	bpf_stream_printk(BPF_STDOUT, "foo");
+	return 0;
+}
+
+SEC("syscall")
+__arch_x86_64
+__arch_arm64
+__success __retval(0)
+__stderr("ERROR: Arena WRITE access at unmapped address 0x{{.*}}")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_arena_write_fault(void *ctx)
+{
+	struct bpf_arena *ptr = (void *)&arena;
+	u64 user_vm_start;
+
+	/* Prevent GCC bounds warning: casting &arena to struct bpf_arena *
+	 * triggers bounds checking since the map definition is smaller than struct
+	 * bpf_arena. barrier_var() makes the pointer opaque to GCC, preventing the
+	 * bounds analysis
+	 */
+	barrier_var(ptr);
+	user_vm_start = ptr->user_vm_start;
+	fault_addr = user_vm_start + 0x7fff;
+	bpf_addr_space_cast(user_vm_start, 0, 1);
+	asm volatile (
+		"r1 = %0;"
+		"r2 = 1;"
+		"*(u32 *)(r1 + 0x7fff) = r2;"
+		:
+		: "r" (user_vm_start)
+		: "r1", "r2"
+	);
+	return 0;
+}
+
+SEC("syscall")
+__arch_x86_64
+__arch_arm64
+__success __retval(0)
+__stderr("ERROR: Arena READ access at unmapped address 0x{{.*}}")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_arena_read_fault(void *ctx)
+{
+	struct bpf_arena *ptr = (void *)&arena;
+	u64 user_vm_start;
+
+	/* Prevent GCC bounds warning: casting &arena to struct bpf_arena *
+	 * triggers bounds checking since the map definition is smaller than struct
+	 * bpf_arena. barrier_var() makes the pointer opaque to GCC, preventing the
+	 * bounds analysis
+	 */
+	barrier_var(ptr);
+	user_vm_start = ptr->user_vm_start;
+	fault_addr = user_vm_start + 0x7fff;
+	bpf_addr_space_cast(user_vm_start, 0, 1);
+	asm volatile (
+		"r1 = %0;"
+		"r1 = *(u32 *)(r1 + 0x7fff);"
+		:
+		: "r" (user_vm_start)
+		: "r1"
+	);
+	return 0;
+}
+
+static __noinline void subprog(void)
+{
+	int __arena *addr = (int __arena *)0xdeadbeef;
+
+	arena_ptr = &arena;
+	*addr = 1;
+}
+
+SEC("syscall")
+__arch_x86_64
+__arch_arm64
+__success __retval(0)
+__stderr("ERROR: Arena WRITE access at unmapped address 0x{{.*}}")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_arena_subprog_fault(void *ctx)
+{
+	subprog();
+	return 0;
+}
+
+static __noinline int timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+	int __arena *addr = (int __arena *)0xdeadbeef;
+
+	arena_ptr = &arena;
+	*addr = 1;
+	return 0;
+}
+
+SEC("syscall")
+__arch_x86_64
+__arch_arm64
+__success __retval(0)
+__stderr("ERROR: Arena WRITE access at unmapped address 0x{{.*}}")
+__stderr("CPU: {{[0-9]+}} UID: 0 PID: {{[0-9]+}} Comm: {{.*}}")
+__stderr("Call trace:\n"
+"{{([a-zA-Z_][a-zA-Z0-9_]*\\+0x[0-9a-fA-F]+/0x[0-9a-fA-F]+\n"
+"|[ \t]+[^\n]+\n)*}}")
+int stream_arena_callback_fault(void *ctx)
+{
+	struct bpf_timer *arr_timer;
+
+	arr_timer = bpf_map_lookup_elem(&array, &(int){0});
+	if (!arr_timer)
+		return 0;
+	bpf_timer_init(arr_timer, &array, 1);
+	bpf_timer_set_callback(arr_timer, timer_cb);
+	bpf_timer_start(arr_timer, 0, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/stream_fail.c b/tools/testing/selftests/bpf/progs/stream_fail.c
new file mode 100644
index 000000000000..3662515f0107
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/stream_fail.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+SEC("syscall")
+__failure __msg("Possibly NULL pointer passed")
+int stream_vprintk_null_arg(void *ctx)
+{
+	bpf_stream_vprintk_impl(BPF_STDOUT, "", NULL, 0, NULL);
+	return 0;
+}
+
+SEC("syscall")
+__failure __msg("R3 type=scalar expected=")
+int stream_vprintk_scalar_arg(void *ctx)
+{
+	bpf_stream_vprintk_impl(BPF_STDOUT, "", (void *)46, 0, NULL);
+	return 0;
+}
+
+SEC("syscall")
+__failure __msg("arg#1 doesn't point to a const string")
+int stream_vprintk_string_arg(void *ctx)
+{
+	bpf_stream_vprintk_impl(BPF_STDOUT, ctx, NULL, 0, NULL);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/string_kfuncs_failure1.c b/tools/testing/selftests/bpf/progs/string_kfuncs_failure1.c
new file mode 100644
index 000000000000..826e6b6aff7e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/string_kfuncs_failure1.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Red Hat, Inc.*/
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <linux/limits.h>
+#include "bpf_misc.h"
+#include "errno.h"
+
+char *user_ptr = (char *)1;
+char *invalid_kern_ptr = (char *)-1;
+
+/*
+ * When passing userspace pointers, the error code differs based on arch:
+ *   -ERANGE on arches with non-overlapping address spaces
+ *   -EFAULT on other arches
+ */
+#if defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_loongarch) || \
+    defined(__TARGET_ARCH_powerpc) || defined(__TARGET_ARCH_x86)
+#define USER_PTR_ERR -ERANGE
+#else
+#define USER_PTR_ERR -EFAULT
+#endif
+
+/*
+ * On s390, __get_kernel_nofault (used in string kfuncs) returns 0 for NULL and
+ * user_ptr (instead of causing an exception) so the below two groups of tests
+ * are not applicable.
+ */
+#ifndef __TARGET_ARCH_s390
+
+/* Passing NULL to string kfuncs (treated as a userspace ptr) */
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcmp_null1(void *ctx) { return bpf_strcmp(NULL, "hello"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcmp_null2(void *ctx) { return bpf_strcmp("hello", NULL); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcasecmp_null1(void *ctx) { return bpf_strcasecmp(NULL, "HELLO"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcasecmp_null2(void *ctx) { return bpf_strcasecmp("HELLO", NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strchr_null(void *ctx) { return bpf_strchr(NULL, 'a'); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strchrnul_null(void *ctx) { return bpf_strchrnul(NULL, 'a'); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strnchr_null(void *ctx) { return bpf_strnchr(NULL, 1, 'a'); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strrchr_null(void *ctx) { return bpf_strrchr(NULL, 'a'); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strlen_null(void *ctx) { return bpf_strlen(NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strnlen_null(void *ctx) { return bpf_strnlen(NULL, 1); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strspn_null1(void *ctx) { return bpf_strspn(NULL, "hello"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strspn_null2(void *ctx) { return bpf_strspn("hello", NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcspn_null1(void *ctx) { return bpf_strcspn(NULL, "hello"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcspn_null2(void *ctx) { return bpf_strcspn("hello", NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strstr_null1(void *ctx) { return bpf_strstr(NULL, "hello"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strstr_null2(void *ctx) { return bpf_strstr("hello", NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcasestr_null1(void *ctx) { return bpf_strcasestr(NULL, "hello"); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strcasestr_null2(void *ctx) { return bpf_strcasestr("hello", NULL); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strnstr_null1(void *ctx) { return bpf_strnstr(NULL, "hello", 1); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strnstr_null2(void *ctx) { return bpf_strnstr("hello", NULL, 1); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strncasestr_null1(void *ctx) { return bpf_strncasestr(NULL, "hello", 1); }
+SEC("syscall")  __retval(USER_PTR_ERR)int test_strncasestr_null2(void *ctx) { return bpf_strncasestr("hello", NULL, 1); }
+
+/* Passing userspace ptr to string kfuncs */
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcmp_user_ptr1(void *ctx) { return bpf_strcmp(user_ptr, "hello"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcmp_user_ptr2(void *ctx) { return bpf_strcmp("hello", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcasecmp_user_ptr1(void *ctx) { return bpf_strcasecmp(user_ptr, "HELLO"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcasecmp_user_ptr2(void *ctx) { return bpf_strcasecmp("HELLO", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strchr_user_ptr(void *ctx) { return bpf_strchr(user_ptr, 'a'); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strchrnul_user_ptr(void *ctx) { return bpf_strchrnul(user_ptr, 'a'); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strnchr_user_ptr(void *ctx) { return bpf_strnchr(user_ptr, 1, 'a'); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strrchr_user_ptr(void *ctx) { return bpf_strrchr(user_ptr, 'a'); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strlen_user_ptr(void *ctx) { return bpf_strlen(user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strnlen_user_ptr(void *ctx) { return bpf_strnlen(user_ptr, 1); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strspn_user_ptr1(void *ctx) { return bpf_strspn(user_ptr, "hello"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strspn_user_ptr2(void *ctx) { return bpf_strspn("hello", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcspn_user_ptr1(void *ctx) { return bpf_strcspn(user_ptr, "hello"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcspn_user_ptr2(void *ctx) { return bpf_strcspn("hello", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strstr_user_ptr1(void *ctx) { return bpf_strstr(user_ptr, "hello"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strstr_user_ptr2(void *ctx) { return bpf_strstr("hello", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcasestr_user_ptr1(void *ctx) { return bpf_strcasestr(user_ptr, "hello"); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strcasestr_user_ptr2(void *ctx) { return bpf_strcasestr("hello", user_ptr); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strnstr_user_ptr1(void *ctx) { return bpf_strnstr(user_ptr, "hello", 1); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strnstr_user_ptr2(void *ctx) { return bpf_strnstr("hello", user_ptr, 1); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strncasestr_user_ptr1(void *ctx) { return bpf_strncasestr(user_ptr, "hello", 1); }
+SEC("syscall") __retval(USER_PTR_ERR) int test_strncasestr_user_ptr2(void *ctx) { return bpf_strncasestr("hello", user_ptr, 1); }
+
+#endif /* __TARGET_ARCH_s390 */
+
+/* Passing invalid kernel ptr to string kfuncs should always return -EFAULT */
+SEC("syscall") __retval(-EFAULT) int test_strcmp_pagefault1(void *ctx) { return bpf_strcmp(invalid_kern_ptr, "hello"); }
+SEC("syscall") __retval(-EFAULT) int test_strcmp_pagefault2(void *ctx) { return bpf_strcmp("hello", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strcasecmp_pagefault1(void *ctx) { return bpf_strcasecmp(invalid_kern_ptr, "HELLO"); }
+SEC("syscall") __retval(-EFAULT) int test_strcasecmp_pagefault2(void *ctx) { return bpf_strcasecmp("HELLO", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strchr_pagefault(void *ctx) { return bpf_strchr(invalid_kern_ptr, 'a'); }
+SEC("syscall") __retval(-EFAULT) int test_strchrnul_pagefault(void *ctx) { return bpf_strchrnul(invalid_kern_ptr, 'a'); }
+SEC("syscall") __retval(-EFAULT) int test_strnchr_pagefault(void *ctx) { return bpf_strnchr(invalid_kern_ptr, 1, 'a'); }
+SEC("syscall") __retval(-EFAULT) int test_strrchr_pagefault(void *ctx) { return bpf_strrchr(invalid_kern_ptr, 'a'); }
+SEC("syscall") __retval(-EFAULT) int test_strlen_pagefault(void *ctx) { return bpf_strlen(invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strnlen_pagefault(void *ctx) { return bpf_strnlen(invalid_kern_ptr, 1); }
+SEC("syscall") __retval(-EFAULT) int test_strspn_pagefault1(void *ctx) { return bpf_strspn(invalid_kern_ptr, "hello"); }
+SEC("syscall") __retval(-EFAULT) int test_strspn_pagefault2(void *ctx) { return bpf_strspn("hello", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strcspn_pagefault1(void *ctx) { return bpf_strcspn(invalid_kern_ptr, "hello"); }
+SEC("syscall") __retval(-EFAULT) int test_strcspn_pagefault2(void *ctx) { return bpf_strcspn("hello", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strstr_pagefault1(void *ctx) { return bpf_strstr(invalid_kern_ptr, "hello"); }
+SEC("syscall") __retval(-EFAULT) int test_strstr_pagefault2(void *ctx) { return bpf_strstr("hello", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strcasestr_pagefault1(void *ctx) { return bpf_strcasestr(invalid_kern_ptr, "hello"); }
+SEC("syscall") __retval(-EFAULT) int test_strcasestr_pagefault2(void *ctx) { return bpf_strcasestr("hello", invalid_kern_ptr); }
+SEC("syscall") __retval(-EFAULT) int test_strnstr_pagefault1(void *ctx) { return bpf_strnstr(invalid_kern_ptr, "hello", 1); }
+SEC("syscall") __retval(-EFAULT) int test_strnstr_pagefault2(void *ctx) { return bpf_strnstr("hello", invalid_kern_ptr, 1); }
+SEC("syscall") __retval(-EFAULT) int test_strncasestr_pagefault1(void *ctx) { return bpf_strncasestr(invalid_kern_ptr, "hello", 1); }
+SEC("syscall") __retval(-EFAULT) int test_strncasestr_pagefault2(void *ctx) { return bpf_strncasestr("hello", invalid_kern_ptr, 1); }
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/string_kfuncs_failure2.c b/tools/testing/selftests/bpf/progs/string_kfuncs_failure2.c
new file mode 100644
index 000000000000..05e1da1f250f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/string_kfuncs_failure2.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Red Hat, Inc.*/
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <linux/limits.h>
+
+char long_str[XATTR_SIZE_MAX + 1];
+
+SEC("syscall") int test_strcmp_too_long(void *ctx) { return bpf_strcmp(long_str, long_str); }
+SEC("syscall") int test_strcasecmp_too_long(void *ctx) { return bpf_strcasecmp(long_str, long_str); }
+SEC("syscall") int test_strchr_too_long(void *ctx) { return bpf_strchr(long_str, 'b'); }
+SEC("syscall") int test_strchrnul_too_long(void *ctx) { return bpf_strchrnul(long_str, 'b'); }
+SEC("syscall") int test_strnchr_too_long(void *ctx) { return bpf_strnchr(long_str, sizeof(long_str), 'b'); }
+SEC("syscall") int test_strrchr_too_long(void *ctx) { return bpf_strrchr(long_str, 'b'); }
+SEC("syscall") int test_strlen_too_long(void *ctx) { return bpf_strlen(long_str); }
+SEC("syscall") int test_strnlen_too_long(void *ctx) { return bpf_strnlen(long_str, sizeof(long_str)); }
+SEC("syscall") int test_strspn_str_too_long(void *ctx) { return bpf_strspn(long_str, "a"); }
+SEC("syscall") int test_strspn_accept_too_long(void *ctx) { return bpf_strspn("b", long_str); }
+SEC("syscall") int test_strcspn_str_too_long(void *ctx) { return bpf_strcspn(long_str, "b"); }
+SEC("syscall") int test_strcspn_reject_too_long(void *ctx) { return bpf_strcspn("b", long_str); }
+SEC("syscall") int test_strstr_too_long(void *ctx) { return bpf_strstr(long_str, "hello"); }
+SEC("syscall") int test_strcasestr_too_long(void *ctx) { return bpf_strcasestr(long_str, "hello"); }
+SEC("syscall") int test_strnstr_too_long(void *ctx) { return bpf_strnstr(long_str, "hello", sizeof(long_str)); }
+SEC("syscall") int test_strncasestr_too_long(void *ctx) { return bpf_strncasestr(long_str, "hello", sizeof(long_str)); }
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/string_kfuncs_success.c b/tools/testing/selftests/bpf/progs/string_kfuncs_success.c
new file mode 100644
index 000000000000..a8513964516b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/string_kfuncs_success.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025 Red Hat, Inc.*/
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "errno.h"
+
+char str[] = "hello world";
+
+#define __test(retval) SEC("syscall") __success __retval(retval)
+
+/* Functional tests */
+__test(0) int test_strcmp_eq(void *ctx) { return bpf_strcmp(str, "hello world"); }
+__test(1) int test_strcmp_neq(void *ctx) { return bpf_strcmp(str, "hello"); }
+__test(0) int test_strcasecmp_eq1(void *ctx) { return bpf_strcasecmp(str, "hello world"); }
+__test(0) int test_strcasecmp_eq2(void *ctx) { return bpf_strcasecmp(str, "HELLO WORLD"); }
+__test(0) int test_strcasecmp_eq3(void *ctx) { return bpf_strcasecmp(str, "HELLO world"); }
+__test(1) int test_strcasecmp_neq1(void *ctx) { return bpf_strcasecmp(str, "hello"); }
+__test(1) int test_strcasecmp_neq2(void *ctx) { return bpf_strcasecmp(str, "HELLO"); }
+__test(1) int test_strchr_found(void *ctx) { return bpf_strchr(str, 'e'); }
+__test(11) int test_strchr_null(void *ctx) { return bpf_strchr(str, '\0'); }
+__test(-ENOENT) int test_strchr_notfound(void *ctx) { return bpf_strchr(str, 'x'); }
+__test(1) int test_strchrnul_found(void *ctx) { return bpf_strchrnul(str, 'e'); }
+__test(11) int test_strchrnul_notfound(void *ctx) { return bpf_strchrnul(str, 'x'); }
+__test(1) int test_strnchr_found(void *ctx) { return bpf_strnchr(str, 5, 'e'); }
+__test(11) int test_strnchr_null(void *ctx) { return bpf_strnchr(str, 12, '\0'); }
+__test(-ENOENT) int test_strnchr_notfound(void *ctx) { return bpf_strnchr(str, 5, 'w'); }
+__test(9) int test_strrchr_found(void *ctx) { return bpf_strrchr(str, 'l'); }
+__test(11) int test_strrchr_null(void *ctx) { return bpf_strrchr(str, '\0'); }
+__test(-ENOENT) int test_strrchr_notfound(void *ctx) { return bpf_strrchr(str, 'x'); }
+__test(11) int test_strlen(void *ctx) { return bpf_strlen(str); }
+__test(11) int test_strnlen(void *ctx) { return bpf_strnlen(str, 12); }
+__test(5) int test_strspn(void *ctx) { return bpf_strspn(str, "ehlo"); }
+__test(2) int test_strcspn(void *ctx) { return bpf_strcspn(str, "lo"); }
+__test(6) int test_strstr_found(void *ctx) { return bpf_strstr(str, "world"); }
+__test(6) int test_strcasestr_found(void *ctx) { return bpf_strcasestr(str, "woRLD"); }
+__test(-ENOENT) int test_strstr_notfound(void *ctx) { return bpf_strstr(str, "hi"); }
+__test(-ENOENT) int test_strcasestr_notfound(void *ctx) { return bpf_strcasestr(str, "hi"); }
+__test(0) int test_strstr_empty(void *ctx) { return bpf_strstr(str, ""); }
+__test(0) int test_strcasestr_empty(void *ctx) { return bpf_strcasestr(str, ""); }
+__test(0) int test_strnstr_found1(void *ctx) { return bpf_strnstr("", "", 0); }
+__test(0) int test_strnstr_found2(void *ctx) { return bpf_strnstr(str, "hello", 5); }
+__test(0) int test_strnstr_found3(void *ctx) { return bpf_strnstr(str, "hello", 6); }
+__test(-ENOENT) int test_strnstr_notfound1(void *ctx) { return bpf_strnstr(str, "hi", 10); }
+__test(-ENOENT) int test_strnstr_notfound2(void *ctx) { return bpf_strnstr(str, "hello", 4); }
+__test(-ENOENT) int test_strnstr_notfound3(void *ctx) { return bpf_strnstr("", "a", 0); }
+__test(0) int test_strnstr_empty(void *ctx) { return bpf_strnstr(str, "", 1); }
+__test(0) int test_strncasestr_found1(void *ctx) { return bpf_strncasestr("", "", 0); }
+__test(0) int test_strncasestr_found2(void *ctx) { return bpf_strncasestr(str, "heLLO", 5); }
+__test(0) int test_strncasestr_found3(void *ctx) { return bpf_strncasestr(str, "heLLO", 6); }
+__test(-ENOENT) int test_strncasestr_notfound1(void *ctx) { return bpf_strncasestr(str, "hi", 10); }
+__test(-ENOENT) int test_strncasestr_notfound2(void *ctx) { return bpf_strncasestr(str, "hello", 4); }
+__test(-ENOENT) int test_strncasestr_notfound3(void *ctx) { return bpf_strncasestr("", "a", 0); }
+__test(0) int test_strncasestr_empty(void *ctx) { return bpf_strncasestr(str, "", 1); }
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/strncmp_bench.c b/tools/testing/selftests/bpf/progs/strncmp_bench.c
new file mode 100644
index 000000000000..f47bf88f8d2a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strncmp_bench.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include <linux/types.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define STRNCMP_STR_SZ 4096
+
+/* Will be updated by benchmark before program loading */
+const volatile unsigned int cmp_str_len = 1;
+const char target[STRNCMP_STR_SZ];
+
+long hits = 0;
+char str[STRNCMP_STR_SZ];
+
+char _license[] SEC("license") = "GPL";
+
+static __always_inline int local_strncmp(const char *s1, unsigned int sz,
+					 const char *s2)
+{
+	int ret = 0;
+	unsigned int i;
+
+	for (i = 0; i < sz; i++) {
+		/* E.g. 0xff > 0x31 */
+		ret = (unsigned char)s1[i] - (unsigned char)s2[i];
+		if (ret || !s1[i])
+			break;
+	}
+
+	return ret;
+}
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int strncmp_no_helper(void *ctx)
+{
+	const char *target_str = target;
+
+	barrier_var(target_str);
+	if (local_strncmp(str, cmp_str_len + 1, target_str) < 0)
+		__sync_add_and_fetch(&hits, 1);
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int strncmp_helper(void *ctx)
+{
+	if (bpf_strncmp(str, cmp_str_len + 1, target) < 0)
+		__sync_add_and_fetch(&hits, 1);
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/strncmp_test.c b/tools/testing/selftests/bpf/progs/strncmp_test.c
new file mode 100644
index 000000000000..769668feed48
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strncmp_test.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021. Huawei Technologies Co., Ltd */
+#include <stdbool.h>
+#include <linux/types.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define STRNCMP_STR_SZ 8
+
+const char target[STRNCMP_STR_SZ] = "EEEEEEE";
+char str[STRNCMP_STR_SZ];
+int cmp_ret = 0;
+int target_pid = 0;
+
+const char no_str_target[STRNCMP_STR_SZ] = "12345678";
+char writable_target[STRNCMP_STR_SZ];
+unsigned int no_const_str_size = STRNCMP_STR_SZ;
+
+char _license[] SEC("license") = "GPL";
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int do_strncmp(void *ctx)
+{
+	if ((bpf_get_current_pid_tgid() >> 32) != target_pid)
+		return 0;
+
+	cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, target);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int strncmp_bad_not_const_str_size(void *ctx)
+{
+	/* The value of string size is not const, so will fail */
+	cmp_ret = bpf_strncmp(str, no_const_str_size, target);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int strncmp_bad_writable_target(void *ctx)
+{
+	/* Compared target is not read-only, so will fail */
+	cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, writable_target);
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int strncmp_bad_not_null_term_target(void *ctx)
+{
+	/* Compared target is not null-terminated, so will fail */
+	cmp_ret = bpf_strncmp(str, STRNCMP_STR_SZ, no_str_target);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/strobemeta.c b/tools/testing/selftests/bpf/progs/strobemeta.c
new file mode 100644
index 000000000000..d3df3d86f092
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+// Copyright (c) 2019 Facebook
+
+#define STROBE_MAX_INTS 2
+#define STROBE_MAX_STRS 25
+#define STROBE_MAX_MAPS 100
+#define STROBE_MAX_MAP_ENTRIES 20
+/* full unroll by llvm #undef NO_UNROLL */
+#include "strobemeta.h"
+
diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h
new file mode 100644
index 000000000000..6e1918deaf26
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta.h
@@ -0,0 +1,635 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/ptrace.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+
+typedef uint32_t pid_t;
+struct task_struct {};
+
+#define TASK_COMM_LEN 16
+#define PERF_MAX_STACK_DEPTH 127
+
+#define STROBE_TYPE_INVALID 0
+#define STROBE_TYPE_INT 1
+#define STROBE_TYPE_STR 2
+#define STROBE_TYPE_MAP 3
+
+#define STACK_TABLE_EPOCH_SHIFT 20
+#define STROBE_MAX_STR_LEN 1
+#define STROBE_MAX_CFGS 32
+#define READ_MAP_VAR_PAYLOAD_CAP					\
+	((1 + STROBE_MAX_MAP_ENTRIES * 2) * STROBE_MAX_STR_LEN)
+#define STROBE_MAX_PAYLOAD						\
+	(STROBE_MAX_STRS * STROBE_MAX_STR_LEN +				\
+	 STROBE_MAX_MAPS * READ_MAP_VAR_PAYLOAD_CAP)
+
+struct strobe_value_header {
+	/*
+	 * meaning depends on type:
+	 * 1. int: 0, if value not set, 1 otherwise
+	 * 2. str: 1 always, whether value is set or not is determined by ptr
+	 * 3. map: 1 always, pointer points to additional struct with number
+	 *    of entries (up to STROBE_MAX_MAP_ENTRIES)
+	 */
+	uint16_t len;
+	/*
+	 * _reserved might be used for some future fields/flags, but we always
+	 * want to keep strobe_value_header to be 8 bytes, so BPF can read 16
+	 * bytes in one go and get both header and value
+	 */
+	uint8_t _reserved[6];
+};
+
+/*
+ * strobe_value_generic is used from BPF probe only, but needs to be a union
+ * of strobe_value_int/strobe_value_str/strobe_value_map
+ */
+struct strobe_value_generic {
+	struct strobe_value_header header;
+	union {
+		int64_t val;
+		void *ptr;
+	};
+};
+
+struct strobe_value_int {
+	struct strobe_value_header header;
+	int64_t value;
+};
+
+struct strobe_value_str {
+	struct strobe_value_header header;
+	const char* value;
+};
+
+struct strobe_value_map {
+	struct strobe_value_header header;
+	const struct strobe_map_raw* value;
+};
+
+struct strobe_map_entry {
+	const char* key;
+	const char* val;
+};
+
+/*
+ * Map of C-string key/value pairs with fixed maximum capacity. Each map has
+ * corresponding int64 ID, which application can use (or ignore) in whatever
+ * way appropriate. Map is "write-only", there is no way to get data out of
+ * map. Map is intended to be used to provide metadata for profilers and is
+ * not to be used for internal in-app communication. All methods are
+ * thread-safe.
+ */
+struct strobe_map_raw {
+	/*
+	 * general purpose unique ID that's up to application to decide
+	 * whether and how to use; for request metadata use case id is unique
+	 * request ID that's used to match metadata with stack traces on
+	 * Strobelight backend side
+	 */
+	int64_t id;
+	/* number of used entries in map */
+	int64_t cnt;
+	/*
+	 * having volatile doesn't change anything on BPF side, but clang
+	 * emits warnings for passing `volatile const char *` into
+	 * bpf_probe_read_user_str that expects just `const char *`
+	 */
+	const char* tag;
+	/*
+	 * key/value entries, each consisting of 2 pointers to key and value
+	 * C strings
+	 */
+	struct strobe_map_entry entries[STROBE_MAX_MAP_ENTRIES];
+};
+
+/* Following values define supported values of TLS mode */
+#define TLS_NOT_SET -1
+#define TLS_LOCAL_EXEC 0
+#define TLS_IMM_EXEC 1
+#define TLS_GENERAL_DYN 2
+
+/*
+ * structure that universally represents TLS location (both for static
+ * executables and shared libraries)
+ */
+struct strobe_value_loc {
+	/*
+	 * tls_mode defines what TLS mode was used for particular metavariable:
+	 * - -1 (TLS_NOT_SET) - no metavariable;
+	 * - 0 (TLS_LOCAL_EXEC) - Local Executable mode;
+	 * - 1 (TLS_IMM_EXEC) - Immediate Executable mode;
+	 * - 2 (TLS_GENERAL_DYN) - General Dynamic mode;
+	 * Local Dynamic mode is not yet supported, because never seen in
+	 * practice.  Mode defines how offset field is interpreted. See
+	 * calc_location() in below for details.
+	 */
+	int64_t tls_mode;
+	/*
+	 * TLS_LOCAL_EXEC: offset from thread pointer (fs:0 for x86-64,
+	 * tpidr_el0 for aarch64).
+	 * TLS_IMM_EXEC: absolute address of GOT entry containing offset
+	 * from thread pointer;
+	 * TLS_GENERAL_DYN: absolute address of double GOT entry
+	 * containing tls_index_t struct;
+	 */
+	int64_t offset;
+};
+
+struct strobemeta_cfg {
+	int64_t req_meta_idx;
+	struct strobe_value_loc int_locs[STROBE_MAX_INTS];
+	struct strobe_value_loc str_locs[STROBE_MAX_STRS];
+	struct strobe_value_loc map_locs[STROBE_MAX_MAPS];
+};
+
+struct strobe_map_descr {
+	uint64_t id;
+	int16_t tag_len;
+	/*
+	 * cnt <0 - map value isn't set;
+	 * 0 - map has id set, but no key/value entries
+	 */
+	int16_t cnt;
+	/*
+	 * both key_lens[i] and val_lens[i] should be >0 for present key/value
+	 * entry
+	 */
+	uint16_t key_lens[STROBE_MAX_MAP_ENTRIES];
+	uint16_t val_lens[STROBE_MAX_MAP_ENTRIES];
+};
+
+struct strobemeta_payload {
+	/* req_id has valid request ID, if req_meta_valid == 1 */
+	int64_t req_id;
+	uint8_t req_meta_valid;
+	/*
+	 * mask has Nth bit set to 1, if Nth metavar was present and
+	 * successfully read
+	 */
+	uint64_t int_vals_set_mask;
+	int64_t int_vals[STROBE_MAX_INTS];
+	/* len is >0 for present values */
+	uint16_t str_lens[STROBE_MAX_STRS];
+	/* if map_descrs[i].cnt == -1, metavar is not present/set */
+	struct strobe_map_descr map_descrs[STROBE_MAX_MAPS];
+	/*
+	 * payload has compactly packed values of str and map variables in the
+	 * form: strval1\0strval2\0map1key1\0map1val1\0map2key1\0map2val1\0
+	 * (and so on); str_lens[i], key_lens[i] and val_lens[i] determines
+	 * value length
+	 */
+	char payload[STROBE_MAX_PAYLOAD];
+};
+
+struct strobelight_bpf_sample {
+	uint64_t ktime;
+	char comm[TASK_COMM_LEN];
+	pid_t pid;
+	int user_stack_id;
+	int kernel_stack_id;
+	int has_meta;
+	struct strobemeta_payload metadata;
+	/*
+	 * makes it possible to pass (<real payload size> + 1) as data size to
+	 * perf_submit() to avoid perf_submit's paranoia about passing zero as
+	 * size, as it deduces that <real payload size> might be
+	 * **theoretically** zero
+	 */
+	char dummy_safeguard;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, 32);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} samples SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 16);
+	__uint(key_size, sizeof(uint32_t));
+	__uint(value_size, sizeof(uint64_t) * PERF_MAX_STACK_DEPTH);
+} stacks_0 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 16);
+	__uint(key_size, sizeof(uint32_t));
+	__uint(value_size, sizeof(uint64_t) * PERF_MAX_STACK_DEPTH);
+} stacks_1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, uint32_t);
+	__type(value, struct strobelight_bpf_sample);
+} sample_heap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, STROBE_MAX_CFGS);
+	__type(key, pid_t);
+	__type(value, struct strobemeta_cfg);
+} strobemeta_cfgs SEC(".maps");
+
+/* Type for the dtv.  */
+/* https://github.com/lattera/glibc/blob/master/nptl/sysdeps/x86_64/tls.h#L34 */
+typedef union dtv {
+	size_t counter;
+	struct {
+		void* val;
+		bool is_static;
+	} pointer;
+} dtv_t;
+
+/* Partial definition for tcbhead_t */
+/* https://github.com/bminor/glibc/blob/master/sysdeps/x86_64/nptl/tls.h#L42 */
+struct tcbhead {
+	void* tcb;
+	dtv_t* dtv;
+};
+
+/*
+ * TLS module/offset information for shared library case.
+ * For x86-64, this is mapped onto two entries in GOT.
+ * For aarch64, this is pointed to by second GOT entry.
+ */
+struct tls_index {
+	uint64_t module;
+	uint64_t offset;
+};
+
+#ifdef SUBPROGS
+__noinline
+#else
+__always_inline
+#endif
+static void *calc_location(struct strobe_value_loc *loc, void *tls_base)
+{
+	/*
+	 * tls_mode value is:
+	 * - -1 (TLS_NOT_SET), if no metavar is present;
+	 * - 0 (TLS_LOCAL_EXEC), if metavar uses Local Executable mode of TLS
+	 * (offset from fs:0 for x86-64 or tpidr_el0 for aarch64);
+	 * - 1 (TLS_IMM_EXEC), if metavar uses Immediate Executable mode of TLS;
+	 * - 2 (TLS_GENERAL_DYN), if metavar uses General Dynamic mode of TLS;
+	 * This schema allows to use something like:
+	 * (tls_mode + 1) * (tls_base + offset)
+	 * to get NULL for "no metavar" location, or correct pointer for local
+	 * executable mode without doing extra ifs.
+	 */
+	if (loc->tls_mode <= TLS_LOCAL_EXEC) {
+		/* static executable is simple, we just have offset from
+		 * tls_base */
+		void *addr = tls_base + loc->offset;
+		/* multiply by (tls_mode + 1) to get NULL, if we have no
+		 * metavar in this slot */
+		return (void *)((loc->tls_mode + 1) * (int64_t)addr);
+	}
+	/*
+	 * Other modes are more complicated, we need to jump through few hoops.
+	 *
+	 * For immediate executable mode (currently supported only for aarch64):
+	 *  - loc->offset is pointing to a GOT entry containing fixed offset
+	 *  relative to tls_base;
+	 *
+	 * For general dynamic mode:
+	 *  - loc->offset is pointing to a beginning of double GOT entries;
+	 *  - (for aarch64 only) second entry points to tls_index_t struct;
+	 *  - (for x86-64 only) two GOT entries are already tls_index_t;
+	 *  - tls_index_t->module is used to find start of TLS section in
+	 *  which variable resides;
+	 *  - tls_index_t->offset provides offset within that TLS section,
+	 *  pointing to value of variable.
+	 */
+	struct tls_index tls_index;
+	dtv_t *dtv;
+	void *tls_ptr;
+
+	bpf_probe_read_user(&tls_index, sizeof(struct tls_index),
+			    (void *)loc->offset);
+	/* valid module index is always positive */
+	if (tls_index.module > 0) {
+		/* dtv = ((struct tcbhead *)tls_base)->dtv[tls_index.module] */
+		bpf_probe_read_user(&dtv, sizeof(dtv),
+				    &((struct tcbhead *)tls_base)->dtv);
+		dtv += tls_index.module;
+	} else {
+		dtv = NULL;
+	}
+	bpf_probe_read_user(&tls_ptr, sizeof(void *), dtv);
+	/* if pointer has (void *)-1 value, then TLS wasn't initialized yet */
+	if (!tls_ptr || tls_ptr == (void *)-1)
+		return NULL;
+	return tls_ptr + tls_index.offset;
+}
+
+#ifdef SUBPROGS
+__noinline
+#else
+__always_inline
+#endif
+static void read_int_var(struct strobemeta_cfg *cfg,
+			 size_t idx, void *tls_base,
+			 struct strobe_value_generic *value,
+			 struct strobemeta_payload *data)
+{
+	void *location = calc_location(&cfg->int_locs[idx], tls_base);
+	if (!location)
+		return;
+
+	bpf_probe_read_user(value, sizeof(struct strobe_value_generic), location);
+	data->int_vals[idx] = value->val;
+	if (value->header.len)
+		data->int_vals_set_mask |= (1 << idx);
+}
+
+static __always_inline uint64_t read_str_var(struct strobemeta_cfg *cfg,
+					     size_t idx, void *tls_base,
+					     struct strobe_value_generic *value,
+					     struct strobemeta_payload *data,
+					     size_t off)
+{
+	void *location;
+	uint64_t len;
+
+	data->str_lens[idx] = 0;
+	location = calc_location(&cfg->str_locs[idx], tls_base);
+	if (!location)
+		return 0;
+
+	bpf_probe_read_user(value, sizeof(struct strobe_value_generic), location);
+	len = bpf_probe_read_user_str(&data->payload[off], STROBE_MAX_STR_LEN, value->ptr);
+	/*
+	 * if bpf_probe_read_user_str returns error (<0), due to casting to
+	 * unsigned int, it will become big number, so next check is
+	 * sufficient to check for errors AND prove to BPF verifier, that
+	 * bpf_probe_read_user_str won't return anything bigger than
+	 * STROBE_MAX_STR_LEN
+	 */
+	if (len > STROBE_MAX_STR_LEN)
+		return 0;
+
+	data->str_lens[idx] = len;
+	return off + len;
+}
+
+static __always_inline uint64_t read_map_var(struct strobemeta_cfg *cfg,
+					     size_t idx, void *tls_base,
+					     struct strobe_value_generic *value,
+					     struct strobemeta_payload *data,
+					     size_t off)
+{
+	struct strobe_map_descr* descr = &data->map_descrs[idx];
+	struct strobe_map_raw map;
+	void *location;
+	uint64_t len;
+
+	descr->tag_len = 0; /* presume no tag is set */
+	descr->cnt = -1; /* presume no value is set */
+
+	location = calc_location(&cfg->map_locs[idx], tls_base);
+	if (!location)
+		return off;
+
+	bpf_probe_read_user(value, sizeof(struct strobe_value_generic), location);
+	if (bpf_probe_read_user(&map, sizeof(struct strobe_map_raw), value->ptr))
+		return off;
+
+	descr->id = map.id;
+	descr->cnt = map.cnt;
+	if (cfg->req_meta_idx == idx) {
+		data->req_id = map.id;
+		data->req_meta_valid = 1;
+	}
+
+	len = bpf_probe_read_user_str(&data->payload[off], STROBE_MAX_STR_LEN, map.tag);
+	if (len <= STROBE_MAX_STR_LEN) {
+		descr->tag_len = len;
+		off += len;
+	}
+
+#ifdef NO_UNROLL
+	__pragma_loop_no_unroll
+#else
+	__pragma_loop_unroll
+#endif
+	for (int i = 0; i < STROBE_MAX_MAP_ENTRIES; ++i) {
+		if (i >= map.cnt)
+			break;
+
+		descr->key_lens[i] = 0;
+		len = bpf_probe_read_user_str(&data->payload[off], STROBE_MAX_STR_LEN,
+					      map.entries[i].key);
+		if (len <= STROBE_MAX_STR_LEN) {
+			descr->key_lens[i] = len;
+			off += len;
+		}
+		descr->val_lens[i] = 0;
+		len = bpf_probe_read_user_str(&data->payload[off], STROBE_MAX_STR_LEN,
+					      map.entries[i].val);
+		if (len <= STROBE_MAX_STR_LEN) {
+			descr->val_lens[i] = len;
+			off += len;
+		}
+	}
+
+	return off;
+}
+
+#ifdef USE_BPF_LOOP
+enum read_type {
+	READ_INT_VAR,
+	READ_MAP_VAR,
+	READ_STR_VAR,
+};
+
+struct read_var_ctx {
+	struct strobemeta_payload *data;
+	void *tls_base;
+	struct strobemeta_cfg *cfg;
+	size_t payload_off;
+	/* value gets mutated */
+	struct strobe_value_generic *value;
+	enum read_type type;
+};
+
+static int read_var_callback(__u64 index, struct read_var_ctx *ctx)
+{
+	/* lose precision info for ctx->payload_off, verifier won't track
+	 * double xor, barrier_var() is needed to force clang keep both xors.
+	 */
+	ctx->payload_off ^= index;
+	barrier_var(ctx->payload_off);
+	ctx->payload_off ^= index;
+	switch (ctx->type) {
+	case READ_INT_VAR:
+		if (index >= STROBE_MAX_INTS)
+			return 1;
+		read_int_var(ctx->cfg, index, ctx->tls_base, ctx->value, ctx->data);
+		break;
+	case READ_MAP_VAR:
+		if (index >= STROBE_MAX_MAPS)
+			return 1;
+		if (ctx->payload_off > sizeof(ctx->data->payload) - READ_MAP_VAR_PAYLOAD_CAP)
+			return 1;
+		ctx->payload_off = read_map_var(ctx->cfg, index, ctx->tls_base,
+						ctx->value, ctx->data, ctx->payload_off);
+		break;
+	case READ_STR_VAR:
+		if (index >= STROBE_MAX_STRS)
+			return 1;
+		if (ctx->payload_off > sizeof(ctx->data->payload) - STROBE_MAX_STR_LEN)
+			return 1;
+		ctx->payload_off = read_str_var(ctx->cfg, index, ctx->tls_base,
+						ctx->value, ctx->data, ctx->payload_off);
+		break;
+	}
+	return 0;
+}
+#endif /* USE_BPF_LOOP */
+
+/*
+ * read_strobe_meta returns NULL, if no metadata was read; otherwise returns
+ * pointer to *right after* payload ends
+ */
+#ifdef SUBPROGS
+__noinline
+#else
+__always_inline
+#endif
+static void *read_strobe_meta(struct task_struct *task,
+			      struct strobemeta_payload *data)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+	struct strobe_value_generic value = {0};
+	struct strobemeta_cfg *cfg;
+	size_t payload_off;
+	void *tls_base;
+
+	cfg = bpf_map_lookup_elem(&strobemeta_cfgs, &pid);
+	if (!cfg)
+		return NULL;
+
+	data->int_vals_set_mask = 0;
+	data->req_meta_valid = 0;
+	payload_off = 0;
+	/*
+	 * we don't have struct task_struct definition, it should be:
+	 * tls_base = (void *)task->thread.fsbase;
+	 */
+	tls_base = (void *)task;
+
+#ifdef USE_BPF_LOOP
+	struct read_var_ctx ctx = {
+		.cfg = cfg,
+		.tls_base = tls_base,
+		.value = &value,
+		.data = data,
+		.payload_off = 0,
+	};
+	int err;
+
+	ctx.type = READ_INT_VAR;
+	err = bpf_loop(STROBE_MAX_INTS, read_var_callback, &ctx, 0);
+	if (err != STROBE_MAX_INTS)
+		return NULL;
+
+	ctx.type = READ_STR_VAR;
+	err = bpf_loop(STROBE_MAX_STRS, read_var_callback, &ctx, 0);
+	if (err != STROBE_MAX_STRS)
+		return NULL;
+
+	ctx.type = READ_MAP_VAR;
+	err = bpf_loop(STROBE_MAX_MAPS, read_var_callback, &ctx, 0);
+	if (err != STROBE_MAX_MAPS)
+		return NULL;
+
+	payload_off = ctx.payload_off;
+	/* this should not really happen, here only to satisfy verifier */
+	if (payload_off > sizeof(data->payload))
+		payload_off = sizeof(data->payload);
+#else
+#ifdef NO_UNROLL
+	__pragma_loop_no_unroll
+#else
+	__pragma_loop_unroll
+#endif /* NO_UNROLL */
+	for (int i = 0; i < STROBE_MAX_INTS; ++i) {
+		read_int_var(cfg, i, tls_base, &value, data);
+	}
+#ifdef NO_UNROLL
+	__pragma_loop_no_unroll
+#else
+	__pragma_loop_unroll
+#endif /* NO_UNROLL */
+	for (int i = 0; i < STROBE_MAX_STRS; ++i) {
+		payload_off = read_str_var(cfg, i, tls_base, &value, data, payload_off);
+	}
+#ifdef NO_UNROLL
+	__pragma_loop_no_unroll
+#else
+	__pragma_loop_unroll
+#endif /* NO_UNROLL */
+	for (int i = 0; i < STROBE_MAX_MAPS; ++i) {
+		payload_off = read_map_var(cfg, i, tls_base, &value, data, payload_off);
+	}
+#endif /* USE_BPF_LOOP */
+
+	/*
+	 * return pointer right after end of payload, so it's possible to
+	 * calculate exact amount of useful data that needs to be sent
+	 */
+	return &data->payload[payload_off];
+}
+
+SEC("raw_tracepoint/kfree_skb")
+int on_event(struct pt_regs *ctx) {
+	pid_t pid =  bpf_get_current_pid_tgid() >> 32;
+	struct strobelight_bpf_sample* sample;
+	struct task_struct *task;
+	uint32_t zero = 0;
+	uint64_t ktime_ns;
+	void *sample_end;
+
+	sample = bpf_map_lookup_elem(&sample_heap, &zero);
+	if (!sample)
+		return 0; /* this will never happen */
+
+	sample->pid = pid;
+	bpf_get_current_comm(&sample->comm, TASK_COMM_LEN);
+	ktime_ns = bpf_ktime_get_ns();
+	sample->ktime = ktime_ns;
+
+	task = (struct task_struct *)bpf_get_current_task();
+	sample_end = read_strobe_meta(task, &sample->metadata);
+	sample->has_meta = sample_end != NULL;
+	sample_end = sample_end ? : &sample->metadata;
+
+	if ((ktime_ns >> STACK_TABLE_EPOCH_SHIFT) & 1) {
+		sample->kernel_stack_id = bpf_get_stackid(ctx, &stacks_1, 0);
+		sample->user_stack_id = bpf_get_stackid(ctx, &stacks_1, BPF_F_USER_STACK);
+	} else {
+		sample->kernel_stack_id = bpf_get_stackid(ctx, &stacks_0, 0);
+		sample->user_stack_id = bpf_get_stackid(ctx, &stacks_0, BPF_F_USER_STACK);
+	}
+
+	uint64_t sample_size = sample_end - (void *)sample;
+	/* should always be true */
+	if (sample_size < sizeof(struct strobelight_bpf_sample))
+		bpf_perf_event_output(ctx, &samples, 0, sample, 1 + sample_size);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/strobemeta_bpf_loop.c b/tools/testing/selftests/bpf/progs/strobemeta_bpf_loop.c
new file mode 100644
index 000000000000..d18b992f0165
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta_bpf_loop.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+/* Copyright (c) 2021 Facebook */
+
+#define STROBE_MAX_INTS 2
+#define STROBE_MAX_STRS 25
+#define STROBE_MAX_MAPS 100
+#define STROBE_MAX_MAP_ENTRIES 20
+#define USE_BPF_LOOP
+#include "strobemeta.h"
diff --git a/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c b/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c
new file mode 100644
index 000000000000..f0a1669e11d6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+// Copyright (c) 2019 Facebook
+
+#define STROBE_MAX_INTS 2
+#define STROBE_MAX_STRS 25
+#define STROBE_MAX_MAPS 13
+#define STROBE_MAX_MAP_ENTRIES 20
+#define NO_UNROLL
+#include "strobemeta.h"
diff --git a/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c b/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c
new file mode 100644
index 000000000000..4291a7d642e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+// Copyright (c) 2019 Facebook
+
+#define STROBE_MAX_INTS 2
+#define STROBE_MAX_STRS 25
+#define STROBE_MAX_MAPS 30
+#define STROBE_MAX_MAP_ENTRIES 20
+#define NO_UNROLL
+#include "strobemeta.h"
diff --git a/tools/testing/selftests/bpf/progs/strobemeta_subprogs.c b/tools/testing/selftests/bpf/progs/strobemeta_subprogs.c
new file mode 100644
index 000000000000..b6c01f8fc559
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/strobemeta_subprogs.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+// Copyright (c) 2019 Facebook
+
+#define STROBE_MAX_INTS 2
+#define STROBE_MAX_STRS 25
+#define STROBE_MAX_MAPS 13
+#define STROBE_MAX_MAP_ENTRIES 20
+#define NO_UNROLL
+#define SUBPROGS
+#include "strobemeta.h"
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_autocreate.c b/tools/testing/selftests/bpf/progs/struct_ops_autocreate.c
new file mode 100644
index 000000000000..ba10c3896213
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_autocreate.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+int test_1_result = 0;
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1)
+{
+	test_1_result = 42;
+	return 0;
+}
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_2)
+{
+	return 0;
+}
+
+struct bpf_testmod_ops___v1 {
+	int (*test_1)(void);
+};
+
+struct bpf_testmod_ops___v2 {
+	int (*test_1)(void);
+	int (*does_not_exist)(void);
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops___v1 testmod_1 = {
+	.test_1 = (void *)test_1
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops___v2 testmod_2 = {
+	.test_1 = (void *)test_1,
+	.does_not_exist = (void *)test_2
+};
+
+SEC("?.struct_ops")
+struct bpf_testmod_ops___v1 optional_map = {
+	.test_1 = (void *)test_1,
+};
+
+SEC("?.struct_ops.link")
+struct bpf_testmod_ops___v1 optional_map2 = {
+	.test_1 = (void *)test_1,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c b/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c
new file mode 100644
index 000000000000..6049d9c902d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_autocreate2.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+int test_1_result = 0;
+
+SEC("?struct_ops/test_1")
+int BPF_PROG(foo)
+{
+	test_1_result = 42;
+	return 0;
+}
+
+SEC("?struct_ops/test_1")
+int BPF_PROG(bar)
+{
+	test_1_result = 24;
+	return 0;
+}
+
+struct bpf_testmod_ops {
+	int (*test_1)(void);
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_1 = {
+	.test_1 = (void *)bar
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_detach.c b/tools/testing/selftests/bpf/progs/struct_ops_detach.c
new file mode 100644
index 000000000000..284a5b008e0c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_detach.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+/*
+ * This subprogram validates that libbpf handles the situation in which BPF
+ * object has subprograms in .text section, but has no entry BPF programs.
+ * At some point that was causing issues due to legacy logic of treating such
+ * subprogram as entry program (with unknown program type, which would fail).
+ */
+int dangling_subprog(void)
+{
+	/* do nothing, just be here */
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_do_detach;
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c b/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c
new file mode 100644
index 000000000000..d8cc99f5c2e2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_forgotten_cb.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1_forgotten)
+{
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops ops = {
+	/* we forgot to reference test_1_forgotten above, oops */
+};
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping1.c b/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping1.c
new file mode 100644
index 000000000000..ad8bb546c9bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping1.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define bpf_kfunc_multi_st_ops_test_1(args) bpf_kfunc_multi_st_ops_test_1(args, st_ops_id)
+int st_ops_id;
+
+int test_pid;
+int test_err;
+
+#define MAP1_MAGIC 1234
+
+SEC("struct_ops")
+int BPF_PROG(test_1, struct st_ops_args *args)
+{
+	return MAP1_MAGIC;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(sys_enter, struct pt_regs *regs, long id)
+{
+	struct st_ops_args args = {};
+	struct task_struct *task;
+	int ret;
+
+	task = bpf_get_current_task_btf();
+	if (!test_pid || task->pid != test_pid)
+		return 0;
+
+	ret = bpf_kfunc_multi_st_ops_test_1(&args);
+	if (ret != MAP1_MAGIC)
+		test_err++;
+
+	return 0;
+}
+
+SEC("syscall")
+int syscall_prog(void *ctx)
+{
+	struct st_ops_args args = {};
+	int ret;
+
+	ret = bpf_kfunc_multi_st_ops_test_1(&args);
+	if (ret != MAP1_MAGIC)
+		test_err++;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_multi_st_ops st_ops_map = {
+	.test_1 = (void *)test_1,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping2.c b/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping2.c
new file mode 100644
index 000000000000..cea1a2f4b62f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_id_ops_mapping2.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define bpf_kfunc_multi_st_ops_test_1(args) bpf_kfunc_multi_st_ops_test_1(args, st_ops_id)
+int st_ops_id;
+
+int test_pid;
+int test_err;
+
+#define MAP2_MAGIC 4567
+
+SEC("struct_ops")
+int BPF_PROG(test_1, struct st_ops_args *args)
+{
+	return MAP2_MAGIC;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(sys_enter, struct pt_regs *regs, long id)
+{
+	struct st_ops_args args = {};
+	struct task_struct *task;
+	int ret;
+
+	task = bpf_get_current_task_btf();
+	if (!test_pid || task->pid != test_pid)
+		return 0;
+
+	ret = bpf_kfunc_multi_st_ops_test_1(&args);
+	if (ret != MAP2_MAGIC)
+		test_err++;
+
+	return 0;
+}
+
+SEC("syscall")
+int syscall_prog(void *ctx)
+{
+	struct st_ops_args args = {};
+	int ret;
+
+	ret = bpf_kfunc_multi_st_ops_test_1(&args);
+	if (ret != MAP2_MAGIC)
+		test_err++;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_multi_st_ops st_ops_map = {
+	.test_1 = (void *)test_1,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_kptr_return.c b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return.c
new file mode 100644
index 000000000000..2b98b7710816
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return.c
@@ -0,0 +1,30 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This test struct_ops BPF programs returning referenced kptr. The verifier should
+ * allow a referenced kptr or a NULL pointer to be returned. A referenced kptr to task
+ * here is acquired automatically as the task argument is tagged with "__ref".
+ */
+SEC("struct_ops/test_return_ref_kptr")
+struct task_struct *BPF_PROG(kptr_return, int dummy,
+			     struct task_struct *task, struct cgroup *cgrp)
+{
+	if (dummy % 2) {
+		bpf_task_release(task);
+		return NULL;
+	}
+	return task;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_kptr_return = {
+	.test_return_ref_kptr = (void *)kptr_return,
+};
+
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__invalid_scalar.c b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__invalid_scalar.c
new file mode 100644
index 000000000000..caeea158ef69
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__invalid_scalar.c
@@ -0,0 +1,26 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This test struct_ops BPF programs returning referenced kptr. The verifier should
+ * reject programs returning a non-zero scalar value.
+ */
+SEC("struct_ops/test_return_ref_kptr")
+__failure __msg("At program exit the register R0 has smin=1 smax=1 should have been in [0, 0]")
+struct task_struct *BPF_PROG(kptr_return_fail__invalid_scalar, int dummy,
+			     struct task_struct *task, struct cgroup *cgrp)
+{
+	bpf_task_release(task);
+	return (struct task_struct *)1;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_kptr_return = {
+	.test_return_ref_kptr = (void *)kptr_return_fail__invalid_scalar,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__local_kptr.c b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__local_kptr.c
new file mode 100644
index 000000000000..b8b4f05c3d7f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__local_kptr.c
@@ -0,0 +1,34 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This test struct_ops BPF programs returning referenced kptr. The verifier should
+ * reject programs returning a local kptr.
+ */
+SEC("struct_ops/test_return_ref_kptr")
+__failure __msg("At program exit the register R0 is not a known value (ptr_or_null_)")
+struct task_struct *BPF_PROG(kptr_return_fail__local_kptr, int dummy,
+			     struct task_struct *task, struct cgroup *cgrp)
+{
+	struct task_struct *t;
+
+	bpf_task_release(task);
+
+	t = bpf_obj_new(typeof(*task));
+	if (!t)
+		return NULL;
+
+	return t;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_kptr_return = {
+	.test_return_ref_kptr = (void *)kptr_return_fail__local_kptr,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__nonzero_offset.c b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__nonzero_offset.c
new file mode 100644
index 000000000000..7ddeb28c2329
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__nonzero_offset.c
@@ -0,0 +1,25 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This test struct_ops BPF programs returning referenced kptr. The verifier should
+ * reject programs returning a modified referenced kptr.
+ */
+SEC("struct_ops/test_return_ref_kptr")
+__failure __msg("dereference of modified trusted_ptr_ ptr R0 off={{[0-9]+}} disallowed")
+struct task_struct *BPF_PROG(kptr_return_fail__nonzero_offset, int dummy,
+			     struct task_struct *task, struct cgroup *cgrp)
+{
+	return (struct task_struct *)&task->jobctl;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_kptr_return = {
+	.test_return_ref_kptr = (void *)kptr_return_fail__nonzero_offset,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__wrong_type.c b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__wrong_type.c
new file mode 100644
index 000000000000..6a2dd5367802
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_kptr_return_fail__wrong_type.c
@@ -0,0 +1,30 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct cgroup *bpf_cgroup_acquire(struct cgroup *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This test struct_ops BPF programs returning referenced kptr. The verifier should
+ * reject programs returning a referenced kptr of the wrong type.
+ */
+SEC("struct_ops/test_return_ref_kptr")
+__failure __msg("At program exit the register R0 is not a known value (ptr_or_null_)")
+struct task_struct *BPF_PROG(kptr_return_fail__wrong_type, int dummy,
+			     struct task_struct *task, struct cgroup *cgrp)
+{
+	struct task_struct *ret;
+
+	ret = (struct task_struct *)bpf_cgroup_acquire(cgrp);
+	bpf_task_release(task);
+
+	return ret;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_kptr_return = {
+	.test_return_ref_kptr = (void *)kptr_return_fail__wrong_type,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_maybe_null.c b/tools/testing/selftests/bpf/progs/struct_ops_maybe_null.c
new file mode 100644
index 000000000000..ccab3935aa42
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_maybe_null.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+pid_t tgid = 0;
+
+/* This is a test BPF program that uses struct_ops to access an argument
+ * that may be NULL. This is a test for the verifier to ensure that it can
+ * rip PTR_MAYBE_NULL correctly.
+ */
+SEC("struct_ops/test_maybe_null")
+int BPF_PROG(test_maybe_null, int dummy,
+	     struct task_struct *task)
+{
+	if (task)
+		tgid = task->tgid;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_1 = {
+	.test_maybe_null = (void *)test_maybe_null,
+};
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_maybe_null_fail.c b/tools/testing/selftests/bpf/progs/struct_ops_maybe_null_fail.c
new file mode 100644
index 000000000000..8b5515f4f724
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_maybe_null_fail.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+pid_t tgid = 0;
+
+SEC("struct_ops/test_maybe_null_struct_ptr")
+int BPF_PROG(test_maybe_null_struct_ptr, int dummy,
+	     struct task_struct *task)
+{
+	tgid = task->tgid;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_struct_ptr = {
+	.test_maybe_null = (void *)test_maybe_null_struct_ptr,
+};
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_module.c b/tools/testing/selftests/bpf/progs/struct_ops_module.c
new file mode 100644
index 000000000000..71c420c3a5a6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_module.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+int test_1_result = 0;
+int test_2_result = 0;
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1)
+{
+	test_1_result = 0xdeadbeef;
+	return 0;
+}
+
+SEC("struct_ops/test_2")
+void BPF_PROG(test_2, int a, int b)
+{
+	test_2_result = a + b;
+}
+
+SEC("?struct_ops/test_3")
+int BPF_PROG(test_3, int a, int b)
+{
+	test_2_result = a + b + 3;
+	return a + b + 3;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_1 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2,
+	.data = 0x1,
+};
+
+SEC("struct_ops/test_2")
+void BPF_PROG(test_2_v2, int a, int b)
+{
+	test_2_result = a * b;
+}
+
+struct bpf_testmod_ops___v2 {
+	int (*test_1)(void);
+	void (*test_2)(int a, int b);
+	int (*test_maybe_null)(int dummy, struct task_struct *task);
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops___v2 testmod_2 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2_v2,
+};
+
+struct bpf_testmod_ops___zeroed {
+	int (*test_1)(void);
+	void (*test_2)(int a, int b);
+	int (*test_maybe_null)(int dummy, struct task_struct *task);
+	void (*zeroed_op)(int a, int b);
+	int zeroed;
+};
+
+SEC("struct_ops/test_3")
+int BPF_PROG(zeroed_op)
+{
+	return 1;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops___zeroed testmod_zeroed = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2_v2,
+	.zeroed_op = (void *)zeroed_op,
+};
+
+struct bpf_testmod_ops___incompatible {
+	int (*test_1)(void);
+	void (*test_2)(int *a);
+	int data;
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops___incompatible testmod_incompatible = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2,
+	.data = 3,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_multi_pages.c b/tools/testing/selftests/bpf/progs/struct_ops_multi_pages.c
new file mode 100644
index 000000000000..5b23ea817f1f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_multi_pages.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define TRAMP(x) \
+	SEC("struct_ops/tramp_" #x)		\
+	int BPF_PROG(tramp_ ## x, int a)	\
+	{					\
+		return a;			\
+	}
+
+TRAMP(1)
+TRAMP(2)
+TRAMP(3)
+TRAMP(4)
+TRAMP(5)
+TRAMP(6)
+TRAMP(7)
+TRAMP(8)
+TRAMP(9)
+TRAMP(10)
+TRAMP(11)
+TRAMP(12)
+TRAMP(13)
+TRAMP(14)
+TRAMP(15)
+TRAMP(16)
+TRAMP(17)
+TRAMP(18)
+TRAMP(19)
+TRAMP(20)
+TRAMP(21)
+TRAMP(22)
+TRAMP(23)
+TRAMP(24)
+TRAMP(25)
+TRAMP(26)
+TRAMP(27)
+TRAMP(28)
+TRAMP(29)
+TRAMP(30)
+TRAMP(31)
+TRAMP(32)
+TRAMP(33)
+TRAMP(34)
+TRAMP(35)
+TRAMP(36)
+TRAMP(37)
+TRAMP(38)
+TRAMP(39)
+TRAMP(40)
+
+#define F_TRAMP(x) .tramp_ ## x = (void *)tramp_ ## x
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops multi_pages = {
+	F_TRAMP(1),
+	F_TRAMP(2),
+	F_TRAMP(3),
+	F_TRAMP(4),
+	F_TRAMP(5),
+	F_TRAMP(6),
+	F_TRAMP(7),
+	F_TRAMP(8),
+	F_TRAMP(9),
+	F_TRAMP(10),
+	F_TRAMP(11),
+	F_TRAMP(12),
+	F_TRAMP(13),
+	F_TRAMP(14),
+	F_TRAMP(15),
+	F_TRAMP(16),
+	F_TRAMP(17),
+	F_TRAMP(18),
+	F_TRAMP(19),
+	F_TRAMP(20),
+	F_TRAMP(21),
+	F_TRAMP(22),
+	F_TRAMP(23),
+	F_TRAMP(24),
+	F_TRAMP(25),
+	F_TRAMP(26),
+	F_TRAMP(27),
+	F_TRAMP(28),
+	F_TRAMP(29),
+	F_TRAMP(30),
+	F_TRAMP(31),
+	F_TRAMP(32),
+	F_TRAMP(33),
+	F_TRAMP(34),
+	F_TRAMP(35),
+	F_TRAMP(36),
+	F_TRAMP(37),
+	F_TRAMP(38),
+	F_TRAMP(39),
+	F_TRAMP(40),
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c b/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c
new file mode 100644
index 000000000000..5d0937fa07be
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_nulled_out_cb.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+int rand;
+int arr[1];
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1_turn_off)
+{
+	return arr[rand]; /* potentially way out of range access */
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops ops = {
+	.test_1 = (void *)test_1_turn_off,
+};
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_private_stack.c b/tools/testing/selftests/bpf/progs/struct_ops_private_stack.c
new file mode 100644
index 000000000000..dbe646013811
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_private_stack.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
+bool skip __attribute((__section__(".data"))) = false;
+#else
+bool skip = true;
+#endif
+
+void bpf_testmod_ops3_call_test_2(void) __ksym;
+
+int val_i, val_j;
+
+__noinline static int subprog2(int *a, int *b)
+{
+	return val_i + a[10] + b[20];
+}
+
+__noinline static int subprog1(int *a)
+{
+	/* stack size 200 bytes */
+	int b[50] = {};
+
+	b[20] = 2;
+	return subprog2(a, b);
+}
+
+
+SEC("struct_ops")
+int BPF_PROG(test_1)
+{
+	/* stack size 400 bytes */
+	int a[100] = {};
+
+	a[10] = 1;
+	val_i = subprog1(a);
+	bpf_testmod_ops3_call_test_2();
+	return 0;
+}
+
+SEC("struct_ops")
+int BPF_PROG(test_2)
+{
+	/* stack size 200 bytes */
+	int a[50] = {};
+
+	a[10] = 3;
+	val_j = subprog1(a);
+	return 0;
+}
+
+SEC(".struct_ops")
+struct bpf_testmod_ops3 testmod_1 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_private_stack_fail.c b/tools/testing/selftests/bpf/progs/struct_ops_private_stack_fail.c
new file mode 100644
index 000000000000..3d89ad7cbe2a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_private_stack_fail.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
+bool skip __attribute((__section__(".data"))) = false;
+#else
+bool skip = true;
+#endif
+
+void bpf_testmod_ops3_call_test_2(void) __ksym;
+
+int val_i, val_j;
+
+__noinline static int subprog2(int *a, int *b)
+{
+	return val_i + a[10] + b[20];
+}
+
+__noinline static int subprog1(int *a)
+{
+	/* stack size 200 bytes */
+	int b[50] = {};
+
+	b[20] = 2;
+	return subprog2(a, b);
+}
+
+
+SEC("struct_ops")
+int BPF_PROG(test_1)
+{
+	/* stack size 100 bytes */
+	int a[25] = {};
+
+	a[10] = 1;
+	val_i = subprog1(a);
+	bpf_testmod_ops3_call_test_2();
+	return 0;
+}
+
+SEC("struct_ops")
+int BPF_PROG(test_2)
+{
+	/* stack size 400 bytes */
+	int a[100] = {};
+
+	a[10] = 3;
+	val_j = subprog1(a);
+	return 0;
+}
+
+SEC(".struct_ops")
+struct bpf_testmod_ops3 testmod_1 = {
+	.test_1 = (void *)test_1,
+	.test_2 = (void *)test_2,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c b/tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c
new file mode 100644
index 000000000000..b1f6d7e5a8e5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_private_stack_recur.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
+bool skip __attribute((__section__(".data"))) = false;
+#else
+bool skip = true;
+#endif
+
+void bpf_testmod_ops3_call_test_1(void) __ksym;
+
+int val_i, val_j;
+
+__noinline static int subprog2(int *a, int *b)
+{
+	return val_i + a[1] + b[20];
+}
+
+__noinline static int subprog1(int *a)
+{
+	/* stack size 400 bytes */
+	int b[100] = {};
+
+	b[20] = 2;
+	return subprog2(a, b);
+}
+
+
+SEC("struct_ops")
+int BPF_PROG(test_1)
+{
+	/* stack size 20 bytes */
+	int a[5] = {};
+
+	a[1] = 1;
+	val_j += subprog1(a);
+	bpf_testmod_ops3_call_test_1();
+	return 0;
+}
+
+SEC(".struct_ops")
+struct bpf_testmod_ops3 testmod_1 = {
+	.test_1 = (void *)test_1,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_refcounted.c b/tools/testing/selftests/bpf/progs/struct_ops_refcounted.c
new file mode 100644
index 000000000000..9c0a65466356
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_refcounted.c
@@ -0,0 +1,31 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__attribute__((nomerge)) extern void bpf_task_release(struct task_struct *p) __ksym;
+
+/* This is a test BPF program that uses struct_ops to access a referenced
+ * kptr argument. This is a test for the verifier to ensure that it
+ * 1) recognizes the task as a referenced object (i.e., ref_obj_id > 0), and
+ * 2) the same reference can be acquired from multiple paths as long as it
+ *    has not been released.
+ */
+SEC("struct_ops/test_refcounted")
+int BPF_PROG(refcounted, int dummy, struct task_struct *task)
+{
+	if (dummy == 1)
+		bpf_task_release(task);
+	else
+		bpf_task_release(task);
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_refcounted = {
+	.test_refcounted = (void *)refcounted,
+};
+
+
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__global_subprog.c b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__global_subprog.c
new file mode 100644
index 000000000000..ae074aa62852
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__global_subprog.c
@@ -0,0 +1,39 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+extern void bpf_task_release(struct task_struct *p) __ksym;
+
+__noinline int subprog_release(__u64 *ctx __arg_ctx)
+{
+	struct task_struct *task = (struct task_struct *)ctx[1];
+	int dummy = (int)ctx[0];
+
+	bpf_task_release(task);
+
+	return dummy + 1;
+}
+
+/* Test that the verifier rejects a program that contains a global
+ * subprogram with referenced kptr arguments
+ */
+SEC("struct_ops/test_refcounted")
+__failure __log_level(2)
+__msg("Validating subprog_release() func#1...")
+__msg("invalid bpf_context access off=8. Reference may already be released")
+int refcounted_fail__global_subprog(unsigned long long *ctx)
+{
+	struct task_struct *task = (struct task_struct *)ctx[1];
+
+	bpf_task_release(task);
+
+	return subprog_release(ctx);
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_ref_acquire = {
+	.test_refcounted = (void *)refcounted_fail__global_subprog,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__ref_leak.c b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__ref_leak.c
new file mode 100644
index 000000000000..e945b1a04294
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__ref_leak.c
@@ -0,0 +1,22 @@
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Test that the verifier rejects a program that acquires a referenced
+ * kptr through context without releasing the reference
+ */
+SEC("struct_ops/test_refcounted")
+__failure __msg("Unreleased reference id=1 alloc_insn=0")
+int BPF_PROG(refcounted_fail__ref_leak, int dummy,
+	     struct task_struct *task)
+{
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_ref_acquire = {
+	.test_refcounted = (void *)refcounted_fail__ref_leak,
+};
diff --git a/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__tail_call.c b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__tail_call.c
new file mode 100644
index 000000000000..3b125025a1f2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/struct_ops_refcounted_fail__tail_call.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} prog_array SEC(".maps");
+
+/* Test that the verifier rejects a program with referenced kptr arguments
+ * that tail call
+ */
+SEC("struct_ops/test_refcounted")
+__failure __msg("program with __ref argument cannot tail call")
+int refcounted_fail__tail_call(unsigned long long *ctx)
+{
+	struct task_struct *task = (struct task_struct *)ctx[1];
+
+	bpf_task_release(task);
+	bpf_tail_call(ctx, &prog_array, 0);
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod_ref_acquire = {
+	.test_refcounted = (void *)refcounted_fail__tail_call,
+};
+
diff --git a/tools/testing/selftests/bpf/progs/summarization.c b/tools/testing/selftests/bpf/progs/summarization.c
new file mode 100644
index 000000000000..f89effe82c9e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/summarization.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline
+long changes_pkt_data(struct __sk_buff *sk)
+{
+	return bpf_skb_pull_data(sk, 0);
+}
+
+__noinline __weak
+long does_not_change_pkt_data(struct __sk_buff *sk)
+{
+	return 0;
+}
+
+SEC("?tc")
+int main_changes_with_subprogs(struct __sk_buff *sk)
+{
+	changes_pkt_data(sk);
+	does_not_change_pkt_data(sk);
+	return 0;
+}
+
+SEC("?tc")
+int main_changes(struct __sk_buff *sk)
+{
+	bpf_skb_pull_data(sk, 0);
+	return 0;
+}
+
+SEC("?tc")
+int main_does_not_change(struct __sk_buff *sk)
+{
+	return 0;
+}
+
+__noinline
+long might_sleep(struct pt_regs *ctx __arg_ctx)
+{
+	int i;
+
+	bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+__noinline __weak
+long does_not_sleep(struct pt_regs *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?uprobe.s")
+int main_might_sleep_with_subprogs(struct pt_regs *ctx)
+{
+	might_sleep(ctx);
+	does_not_sleep(ctx);
+	return 0;
+}
+
+SEC("?uprobe.s")
+int main_might_sleep(struct pt_regs *ctx)
+{
+	int i;
+
+	bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+SEC("?uprobe.s")
+int main_does_not_sleep(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/summarization_freplace.c b/tools/testing/selftests/bpf/progs/summarization_freplace.c
new file mode 100644
index 000000000000..935f00e0e9ea
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/summarization_freplace.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("?freplace")
+long changes_pkt_data(struct __sk_buff *sk)
+{
+	return bpf_skb_pull_data(sk, 0);
+}
+
+SEC("?freplace")
+long does_not_change_pkt_data(struct __sk_buff *sk)
+{
+	return 0;
+}
+
+SEC("?freplace")
+long might_sleep(struct pt_regs *ctx)
+{
+	int i;
+
+	bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+SEC("?freplace")
+long does_not_sleep(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/syscall.c b/tools/testing/selftests/bpf/progs/syscall.c
new file mode 100644
index 000000000000..b698cc62a371
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/syscall.c
@@ -0,0 +1,208 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <../../../tools/include/linux/filter.h>
+#include <linux/btf.h>
+#include <string.h>
+#include <errno.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct bpf_map {
+	int id;
+}  __attribute__((preserve_access_index));
+
+struct args {
+	__u64 log_buf;
+	__u32 log_size;
+	int max_entries;
+	int map_fd;
+	int prog_fd;
+	int btf_fd;
+};
+
+#define BTF_INFO_ENC(kind, kind_flag, vlen) \
+	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
+#define BTF_TYPE_ENC(name, info, size_or_type) (name), (info), (size_or_type)
+#define BTF_INT_ENC(encoding, bits_offset, nr_bits) \
+	((encoding) << 24 | (bits_offset) << 16 | (nr_bits))
+#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz), \
+	BTF_INT_ENC(encoding, bits_offset, bits)
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, union bpf_attr);
+	__uint(max_entries, 1);
+} bpf_attr_array SEC(".maps");
+
+struct inner_map_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+} inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+	__array(values, struct inner_map_type);
+} outer_array_map SEC(".maps") = {
+	.values = {
+		[0] = &inner_map,
+	},
+};
+
+static inline __u64 ptr_to_u64(const void *ptr)
+{
+	return (__u64) (unsigned long) ptr;
+}
+
+static int btf_load(void)
+{
+	struct btf_blob {
+		struct btf_header btf_hdr;
+		__u32 types[8];
+		__u32 str;
+	} raw_btf = {
+		.btf_hdr = {
+			.magic = BTF_MAGIC,
+			.version = BTF_VERSION,
+			.hdr_len = sizeof(struct btf_header),
+			.type_len = sizeof(raw_btf.types),
+			.str_off = offsetof(struct btf_blob, str) - offsetof(struct btf_blob, types),
+			.str_len = sizeof(raw_btf.str),
+		},
+		.types = {
+			/* long */
+			BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 64, 8),  /* [1] */
+			/* unsigned long */
+			BTF_TYPE_INT_ENC(0, 0, 0, 64, 8),  /* [2] */
+		},
+	};
+	static union bpf_attr btf_load_attr = {
+		.btf_size = sizeof(raw_btf),
+	};
+
+	btf_load_attr.btf = (long)&raw_btf;
+	return bpf_sys_bpf(BPF_BTF_LOAD, &btf_load_attr, sizeof(btf_load_attr));
+}
+
+SEC("syscall")
+int load_prog(struct args *ctx)
+{
+	static char license[] = "GPL";
+	static struct bpf_insn insns[] = {
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_LD_MAP_FD(BPF_REG_1, 0),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	static union bpf_attr map_create_attr = {
+		.map_type = BPF_MAP_TYPE_HASH,
+		.key_size = 8,
+		.value_size = 8,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 2,
+	};
+	static union bpf_attr map_update_attr = { .map_fd = 1, };
+	static __u64 key = 12;
+	static __u64 value = 34;
+	static union bpf_attr prog_load_attr = {
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.insn_cnt = ARRAY_SIZE(insns),
+	};
+	int ret;
+
+	ret = btf_load();
+	if (ret <= 0)
+		return ret;
+
+	ctx->btf_fd = ret;
+	map_create_attr.max_entries = ctx->max_entries;
+	map_create_attr.btf_fd = ret;
+
+	prog_load_attr.license = ptr_to_u64(license);
+	prog_load_attr.insns = ptr_to_u64(insns);
+	prog_load_attr.log_buf = ctx->log_buf;
+	prog_load_attr.log_size = ctx->log_size;
+	prog_load_attr.log_level = 1;
+
+	ret = bpf_sys_bpf(BPF_MAP_CREATE, &map_create_attr, sizeof(map_create_attr));
+	if (ret <= 0)
+		return ret;
+	ctx->map_fd = ret;
+	insns[3].imm = ret;
+
+	map_update_attr.map_fd = ret;
+	map_update_attr.key = ptr_to_u64(&key);
+	map_update_attr.value = ptr_to_u64(&value);
+	ret = bpf_sys_bpf(BPF_MAP_UPDATE_ELEM, &map_update_attr, sizeof(map_update_attr));
+	if (ret < 0)
+		return ret;
+
+	ret = bpf_sys_bpf(BPF_PROG_LOAD, &prog_load_attr, sizeof(prog_load_attr));
+	if (ret <= 0)
+		return ret;
+	ctx->prog_fd = ret;
+	return 1;
+}
+
+SEC("syscall")
+int update_outer_map(void *ctx)
+{
+	int zero = 0, ret = 0, outer_fd = -1, inner_fd = -1, err;
+	const int attr_sz = sizeof(union bpf_attr);
+	union bpf_attr *attr;
+
+	attr = bpf_map_lookup_elem((struct bpf_map *)&bpf_attr_array, &zero);
+	if (!attr)
+		goto out;
+
+	memset(attr, 0, attr_sz);
+	attr->map_id = ((struct bpf_map *)&outer_array_map)->id;
+	outer_fd = bpf_sys_bpf(BPF_MAP_GET_FD_BY_ID, attr, attr_sz);
+	if (outer_fd < 0)
+		goto out;
+
+	memset(attr, 0, attr_sz);
+	attr->map_type = BPF_MAP_TYPE_ARRAY;
+	attr->key_size = 4;
+	attr->value_size = 4;
+	attr->max_entries = 1;
+	inner_fd = bpf_sys_bpf(BPF_MAP_CREATE, attr, attr_sz);
+	if (inner_fd < 0)
+		goto out;
+
+	memset(attr, 0, attr_sz);
+	attr->map_fd = outer_fd;
+	attr->key = ptr_to_u64(&zero);
+	attr->value = ptr_to_u64(&inner_fd);
+	err = bpf_sys_bpf(BPF_MAP_UPDATE_ELEM, attr, attr_sz);
+	if (err)
+		goto out;
+
+	memset(attr, 0, attr_sz);
+	attr->map_fd = outer_fd;
+	attr->key = ptr_to_u64(&zero);
+	err = bpf_sys_bpf(BPF_MAP_DELETE_ELEM, attr, attr_sz);
+	if (err)
+		goto out;
+	ret = 1;
+out:
+	if (inner_fd >= 0)
+		bpf_sys_close(inner_fd);
+	if (outer_fd >= 0)
+		bpf_sys_close(outer_fd);
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/tailcall1.c b/tools/testing/selftests/bpf/progs/tailcall1.c
new file mode 100644
index 000000000000..8159a0b4a69a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall1.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 3);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+#define TAIL_FUNC(x) 				\
+	SEC("tc")				\
+	int classifier_##x(struct __sk_buff *skb)	\
+	{					\
+		return x;			\
+	}
+TAIL_FUNC(0)
+TAIL_FUNC(1)
+TAIL_FUNC(2)
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	/* Multiple locations to make sure we patch
+	 * all of them.
+	 */
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	bpf_tail_call_static(skb, &jmp_table, 0);
+
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	bpf_tail_call_static(skb, &jmp_table, 1);
+
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	bpf_tail_call_static(skb, &jmp_table, 2);
+
+	return 3;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall2.c b/tools/testing/selftests/bpf/progs/tailcall2.c
new file mode 100644
index 000000000000..a5ff53e61702
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall2.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 5);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	return 0;
+}
+
+SEC("tc")
+int classifier_1(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	return 1;
+}
+
+SEC("tc")
+int classifier_2(struct __sk_buff *skb)
+{
+	return 2;
+}
+
+SEC("tc")
+int classifier_3(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 4);
+	return 3;
+}
+
+SEC("tc")
+int classifier_4(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 3);
+	return 4;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	/* Check multi-prog update. */
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	/* Check tail call limit. */
+	bpf_tail_call_static(skb, &jmp_table, 3);
+	return 3;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall3.c b/tools/testing/selftests/bpf/progs/tailcall3.c
new file mode 100644
index 000000000000..f60bcd7b8d4b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall3.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count = 0;
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	count++;
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return 1;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall4.c b/tools/testing/selftests/bpf/progs/tailcall4.c
new file mode 100644
index 000000000000..a56bbc2313ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall4.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 3);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int selector = 0;
+
+#define TAIL_FUNC(x)				\
+	SEC("tc")				\
+	int classifier_##x(struct __sk_buff *skb)	\
+	{					\
+		return x;			\
+	}
+TAIL_FUNC(0)
+TAIL_FUNC(1)
+TAIL_FUNC(2)
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	bpf_tail_call(skb, &jmp_table, selector);
+	return 3;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall5.c b/tools/testing/selftests/bpf/progs/tailcall5.c
new file mode 100644
index 000000000000..8d03496eb6ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall5.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 3);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int selector = 0;
+
+#define TAIL_FUNC(x)				\
+	SEC("tc")				\
+	int classifier_##x(struct __sk_buff *skb)	\
+	{					\
+		return x;			\
+	}
+TAIL_FUNC(0)
+TAIL_FUNC(1)
+TAIL_FUNC(2)
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	int idx = 0;
+
+	if (selector == 1234)
+		idx = 1;
+	else if (selector == 5678)
+		idx = 2;
+
+	bpf_tail_call(skb, &jmp_table, idx);
+	return 3;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall6.c b/tools/testing/selftests/bpf/progs/tailcall6.c
new file mode 100644
index 000000000000..d77b8abd62f3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall6.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count, which;
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	count++;
+	if (__builtin_constant_p(which))
+		__bpf_unreachable();
+	bpf_tail_call(skb, &jmp_table, which);
+	return 1;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	if (__builtin_constant_p(which))
+		__bpf_unreachable();
+	bpf_tail_call(skb, &jmp_table, which);
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf1.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf1.c
new file mode 100644
index 000000000000..8c91428deb90
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf1.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+#define TAIL_FUNC(x) 				\
+	SEC("tc")				\
+	int classifier_##x(struct __sk_buff *skb)	\
+	{					\
+		return x;			\
+	}
+TAIL_FUNC(0)
+TAIL_FUNC(1)
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+
+	return skb->len * 2;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 1);
+
+	return subprog_tail(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c
new file mode 100644
index 000000000000..ce97d141daee
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf2.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_legacy.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	if (load_byte(skb, 0))
+		bpf_tail_call_static(skb, &jmp_table, 1);
+	else
+		bpf_tail_call_static(skb, &jmp_table, 0);
+	return 1;
+}
+
+int count = 0;
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	count++;
+	return subprog_tail(skb);
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+
+	return 0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf3.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf3.c
new file mode 100644
index 000000000000..99c8d1d8a187
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf3.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_legacy.h"
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+__noinline
+int subprog_tail2(struct __sk_buff *skb)
+{
+	volatile char arr[64] = {};
+
+	if (load_word(skb, 0) || load_half(skb, 0))
+		bpf_tail_call_static(skb, &jmp_table, 10);
+	else
+		bpf_tail_call_static(skb, &jmp_table, 1);
+
+	__sink(arr[sizeof(arr) - 1]);
+
+	return skb->len;
+}
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	volatile char arr[64] = {};
+
+	bpf_tail_call_static(skb, &jmp_table, 0);
+
+	__sink(arr[sizeof(arr) - 1]);
+
+	return skb->len * 2;
+}
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	volatile char arr[128] = {};
+
+	__sink(arr[sizeof(arr) - 1]);
+
+	return subprog_tail2(skb);
+}
+
+SEC("tc")
+int classifier_1(struct __sk_buff *skb)
+{
+	volatile char arr[128] = {};
+
+	__sink(arr[sizeof(arr) - 1]);
+
+	return skb->len * 3;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	volatile char arr[128] = {};
+
+	__sink(arr[sizeof(arr) - 1]);
+
+	return subprog_tail(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
new file mode 100644
index 000000000000..a017d6b2f1dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf4.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} nop_table SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 3);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count = 0;
+int noise = 0;
+
+static __always_inline int subprog_noise(void)
+{
+	__u32 key = 0;
+
+	bpf_map_lookup_elem(&nop_table, &key);
+	return 0;
+}
+
+__noinline
+int subprog_tail_2(struct __sk_buff *skb)
+{
+	if (noise)
+		subprog_noise();
+	bpf_tail_call_static(skb, &jmp_table, 2);
+	return skb->len * 3;
+}
+
+__noinline
+int subprog_tail_1(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	return skb->len * 2;
+}
+
+__noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return skb->len;
+}
+
+SEC("tc")
+int classifier_1(struct __sk_buff *skb)
+{
+	return subprog_tail_2(skb);
+}
+
+SEC("tc")
+int classifier_2(struct __sk_buff *skb)
+{
+	count++;
+	return subprog_tail_2(skb);
+}
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	return subprog_tail_1(skb);
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	return subprog_tail(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf6.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf6.c
new file mode 100644
index 000000000000..4a9f63bea66c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf6.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define __unused __attribute__((unused))
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int done = 0;
+
+SEC("tc")
+int classifier_0(struct __sk_buff *skb __unused)
+{
+	done = 1;
+	return 0;
+}
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	/* Don't propagate the constant to the caller */
+	volatile int ret = 1;
+
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return ret;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	/* Have data on stack which size is not a multiple of 8 */
+	volatile char arr[1] = {};
+
+	__sink(arr[0]);
+
+	return subprog_tail(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c
new file mode 100644
index 000000000000..8436c6729167
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fentry.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Leon Hwang */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int count = 0;
+
+SEC("fentry/subprog_tail")
+int BPF_PROG(fentry, struct sk_buff *skb)
+{
+	count++;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c
new file mode 100644
index 000000000000..fe16412c6e6e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_fexit.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Leon Hwang */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int count = 0;
+
+SEC("fexit/subprog_tail")
+int BPF_PROG(fexit, struct sk_buff *skb)
+{
+	count++;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy1.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy1.c
new file mode 100644
index 000000000000..d556b19413d7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy1.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_legacy.h"
+#include "bpf_test_utils.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count = 0;
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return 0;
+}
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	int ret = 1;
+
+	clobber_regs_stack();
+
+	count++;
+	subprog_tail(skb);
+	subprog_tail(skb);
+
+	return ret;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy2.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy2.c
new file mode 100644
index 000000000000..ae94c9c70ab7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy2.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_test_utils.h"
+
+int classifier_0(struct __sk_buff *skb);
+int classifier_1(struct __sk_buff *skb);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(__u32));
+	__array(values, void (void));
+} jmp_table SEC(".maps") = {
+	.values = {
+		[0] = (void *) &classifier_0,
+		[1] = (void *) &classifier_1,
+	},
+};
+
+int count0 = 0;
+int count1 = 0;
+
+static __noinline
+int subprog_tail0(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return 0;
+}
+
+__auxiliary
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	count0++;
+	subprog_tail0(skb);
+	return 0;
+}
+
+static __noinline
+int subprog_tail1(struct __sk_buff *skb)
+{
+	bpf_tail_call_static(skb, &jmp_table, 1);
+	return 0;
+}
+
+__auxiliary
+SEC("tc")
+int classifier_1(struct __sk_buff *skb)
+{
+	count1++;
+	subprog_tail1(skb);
+	return 0;
+}
+
+__success
+__retval(33)
+SEC("tc")
+int tailcall_bpf2bpf_hierarchy_2(struct __sk_buff *skb)
+{
+	int ret = 0;
+
+	clobber_regs_stack();
+
+	subprog_tail0(skb);
+	subprog_tail1(skb);
+
+	__sink(ret);
+	return (count1 << 16) | count0;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy3.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy3.c
new file mode 100644
index 000000000000..56b6b0099840
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy3.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_test_utils.h"
+
+int classifier_0(struct __sk_buff *skb);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__array(values, void (void));
+} jmp_table0 SEC(".maps") = {
+	.values = {
+		[0] = (void *) &classifier_0,
+	},
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__array(values, void (void));
+} jmp_table1 SEC(".maps") = {
+	.values = {
+		[0] = (void *) &classifier_0,
+	},
+};
+
+int count = 0;
+
+static __noinline
+int subprog_tail(struct __sk_buff *skb, void *jmp_table)
+{
+	bpf_tail_call_static(skb, jmp_table, 0);
+	return 0;
+}
+
+__auxiliary
+SEC("tc")
+int classifier_0(struct __sk_buff *skb)
+{
+	count++;
+	subprog_tail(skb, &jmp_table0);
+	subprog_tail(skb, &jmp_table1);
+	return count;
+}
+
+__success
+__retval(33)
+SEC("tc")
+int tailcall_bpf2bpf_hierarchy_3(struct __sk_buff *skb)
+{
+	int ret = 0;
+
+	clobber_regs_stack();
+
+	bpf_tail_call_static(skb, &jmp_table0, 0);
+
+	__sink(ret);
+	return ret;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy_fentry.c b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy_fentry.c
new file mode 100644
index 000000000000..5261395713cd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_bpf2bpf_hierarchy_fentry.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Leon Hwang */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_test_utils.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count = 0;
+
+static __noinline
+int subprog_tail(void *ctx)
+{
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
+
+SEC("fentry/dummy")
+int BPF_PROG(fentry, struct sk_buff *skb)
+{
+	clobber_regs_stack();
+
+	count++;
+	subprog_tail(ctx);
+	subprog_tail(ctx);
+
+	return 0;
+}
+
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_fail.c b/tools/testing/selftests/bpf/progs/tailcall_fail.c
new file mode 100644
index 000000000000..bc77921d2bb0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_fail.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+extern void bpf_rcu_read_lock(void) __ksym;
+extern void bpf_rcu_read_unlock(void) __ksym;
+
+#define private(name) SEC(".bss." #name) __hidden __attribute__((aligned(8)))
+
+private(A) struct bpf_spin_lock lock;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 3);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("?tc")
+__failure __msg("function calls are not allowed while holding a lock")
+int reject_tail_call_spin_lock(struct __sk_buff *ctx)
+{
+	bpf_spin_lock(&lock);
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("tail_call cannot be used inside bpf_rcu_read_lock-ed region")
+int reject_tail_call_rcu_lock(struct __sk_buff *ctx)
+{
+	bpf_rcu_read_lock();
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	bpf_rcu_read_unlock();
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("tail_call cannot be used inside bpf_preempt_disable-ed region")
+int reject_tail_call_preempt_lock(struct __sk_buff *ctx)
+{
+	bpf_guard_preempt();
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
+
+SEC("?tc")
+__failure __msg("tail_call would lead to reference leak")
+int reject_tail_call_ref(struct __sk_buff *ctx)
+{
+	struct foo { int i; } *p;
+
+	p = bpf_obj_new(typeof(*p));
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_freplace.c b/tools/testing/selftests/bpf/progs/tailcall_freplace.c
new file mode 100644
index 000000000000..6713b809df44
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_freplace.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+int count = 0;
+
+SEC("freplace")
+int entry_freplace(struct __sk_buff *skb)
+{
+	count++;
+	bpf_tail_call_static(skb, &jmp_table, 0);
+	return count;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tailcall_poke.c b/tools/testing/selftests/bpf/progs/tailcall_poke.c
new file mode 100644
index 000000000000..c78b94b75e83
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tailcall_poke.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("?fentry/bpf_fentry_test1")
+int BPF_PROG(test, int a)
+{
+	bpf_tail_call_static(ctx, &jmp_table, 0);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(call1, int a)
+{
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(call2, int a)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_kfunc_common.h b/tools/testing/selftests/bpf/progs/task_kfunc_common.h
new file mode 100644
index 000000000000..e9c4fea7a4bb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_kfunc_common.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _TASK_KFUNC_COMMON_H
+#define _TASK_KFUNC_COMMON_H
+
+#include <errno.h>
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct __tasks_kfunc_map_value {
+	struct task_struct __kptr * task;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, int);
+	__type(value, struct __tasks_kfunc_map_value);
+	__uint(max_entries, 1);
+} __tasks_kfunc_map SEC(".maps");
+
+struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+struct task_struct *bpf_task_from_pid(s32 pid) __ksym;
+struct task_struct *bpf_task_from_vpid(s32 vpid) __ksym;
+void bpf_rcu_read_lock(void) __ksym;
+void bpf_rcu_read_unlock(void) __ksym;
+
+static inline struct __tasks_kfunc_map_value *tasks_kfunc_map_value_lookup(struct task_struct *p)
+{
+	s32 pid;
+	long status;
+
+	status = bpf_probe_read_kernel(&pid, sizeof(pid), &p->pid);
+	if (status)
+		return NULL;
+
+	return bpf_map_lookup_elem(&__tasks_kfunc_map, &pid);
+}
+
+static inline int tasks_kfunc_map_insert(struct task_struct *p)
+{
+	struct __tasks_kfunc_map_value local, *v;
+	long status;
+	struct task_struct *acquired, *old;
+	s32 pid;
+
+	status = bpf_probe_read_kernel(&pid, sizeof(pid), &p->pid);
+	if (status)
+		return status;
+
+	local.task = NULL;
+	status = bpf_map_update_elem(&__tasks_kfunc_map, &pid, &local, BPF_NOEXIST);
+	if (status)
+		return status;
+
+	v = bpf_map_lookup_elem(&__tasks_kfunc_map, &pid);
+	if (!v) {
+		bpf_map_delete_elem(&__tasks_kfunc_map, &pid);
+		return -ENOENT;
+	}
+
+	acquired = bpf_task_acquire(p);
+	if (!acquired)
+		return -ENOENT;
+
+	old = bpf_kptr_xchg(&v->task, acquired);
+	if (old) {
+		bpf_task_release(old);
+		return -EEXIST;
+	}
+
+	return 0;
+}
+
+#endif /* _TASK_KFUNC_COMMON_H */
diff --git a/tools/testing/selftests/bpf/progs/task_kfunc_failure.c b/tools/testing/selftests/bpf/progs/task_kfunc_failure.c
new file mode 100644
index 000000000000..4c07ea193f72
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_kfunc_failure.c
@@ -0,0 +1,340 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "task_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(task_newtask,
+ *         TP_PROTO(struct task_struct *p, u64 clone_flags)
+ */
+
+static struct __tasks_kfunc_map_value *insert_lookup_task(struct task_struct *task)
+{
+	int status;
+
+	status = tasks_kfunc_map_insert(task);
+	if (status)
+		return NULL;
+
+	return tasks_kfunc_map_value_lookup(task);
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_acquire_untrusted, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+	struct __tasks_kfunc_map_value *v;
+
+	v = insert_lookup_task(task);
+	if (!v)
+		return 0;
+
+	/* Can't invoke bpf_task_acquire() on an untrusted pointer. */
+	acquired = bpf_task_acquire(v->task);
+	if (!acquired)
+		return 0;
+
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("arg#0 pointer type STRUCT task_struct must point")
+int BPF_PROG(task_kfunc_acquire_fp, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired, *stack_task = (struct task_struct *)&clone_flags;
+
+	/* Can't invoke bpf_task_acquire() on a random frame pointer. */
+	acquired = bpf_task_acquire((struct task_struct *)&stack_task);
+	if (!acquired)
+		return 0;
+
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("kretprobe/free_task")
+__failure __msg("calling kernel function bpf_task_acquire is not allowed")
+int BPF_PROG(task_kfunc_acquire_unsafe_kretprobe, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	/* Can't call bpf_task_acquire() or bpf_task_release() in an untrusted prog. */
+	acquired = bpf_task_acquire(task);
+	if (!acquired)
+		return 0;
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("kretprobe/free_task")
+__failure __msg("calling kernel function bpf_task_acquire is not allowed")
+int BPF_PROG(task_kfunc_acquire_unsafe_kretprobe_rcu, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	bpf_rcu_read_lock();
+	if (!task) {
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+	/* Can't call bpf_task_acquire() or bpf_task_release() in an untrusted prog. */
+	acquired = bpf_task_acquire(task);
+	if (acquired)
+		bpf_task_release(acquired);
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_acquire_null, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	/* Can't invoke bpf_task_acquire() on a NULL pointer. */
+	acquired = bpf_task_acquire(NULL);
+	if (!acquired)
+		return 0;
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Unreleased reference")
+int BPF_PROG(task_kfunc_acquire_unreleased, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_acquire(task);
+
+	/* Acquired task is never released. */
+	__sink(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Unreleased reference")
+int BPF_PROG(task_kfunc_xchg_unreleased, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *kptr;
+	struct __tasks_kfunc_map_value *v;
+
+	v = insert_lookup_task(task);
+	if (!v)
+		return 0;
+
+	kptr = bpf_kptr_xchg(&v->task, NULL);
+	if (!kptr)
+		return 0;
+
+	/* Kptr retrieved from map is never released. */
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_acquire_release_no_null_check, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_acquire(task);
+	/* Can't invoke bpf_task_release() on an acquired task without a NULL check. */
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_release_untrusted, struct task_struct *task, u64 clone_flags)
+{
+	struct __tasks_kfunc_map_value *v;
+
+	v = insert_lookup_task(task);
+	if (!v)
+		return 0;
+
+	/* Can't invoke bpf_task_release() on an untrusted pointer. */
+	bpf_task_release(v->task);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("arg#0 pointer type STRUCT task_struct must point")
+int BPF_PROG(task_kfunc_release_fp, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired = (struct task_struct *)&clone_flags;
+
+	/* Cannot release random frame pointer. */
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_release_null, struct task_struct *task, u64 clone_flags)
+{
+	struct __tasks_kfunc_map_value local, *v;
+	long status;
+	struct task_struct *acquired, *old;
+	s32 pid;
+
+	status = bpf_probe_read_kernel(&pid, sizeof(pid), &task->pid);
+	if (status)
+		return 0;
+
+	local.task = NULL;
+	status = bpf_map_update_elem(&__tasks_kfunc_map, &pid, &local, BPF_NOEXIST);
+	if (status)
+		return status;
+
+	v = bpf_map_lookup_elem(&__tasks_kfunc_map, &pid);
+	if (!v)
+		return -ENOENT;
+
+	acquired = bpf_task_acquire(task);
+	if (!acquired)
+		return -EEXIST;
+
+	old = bpf_kptr_xchg(&v->task, acquired);
+
+	/* old cannot be passed to bpf_task_release() without a NULL check. */
+	bpf_task_release(old);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("release kernel function bpf_task_release expects")
+int BPF_PROG(task_kfunc_release_unacquired, struct task_struct *task, u64 clone_flags)
+{
+	/* Cannot release trusted task pointer which was not acquired. */
+	bpf_task_release(task);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_from_pid_no_null_check, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_from_pid(task->pid);
+
+	/* Releasing bpf_task_from_pid() lookup without a NULL check. */
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(task_kfunc_from_vpid_no_null_check, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_from_vpid(task->pid);
+
+	/* Releasing bpf_task_from_vpid() lookup without a NULL check. */
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("lsm/task_free")
+__failure __msg("R1 must be a rcu pointer")
+int BPF_PROG(task_kfunc_from_lsm_task_free, struct task_struct *task)
+{
+	struct task_struct *acquired;
+
+	/* the argument of lsm task_free hook is untrusted. */
+	acquired = bpf_task_acquire(task);
+	if (!acquired)
+		return 0;
+
+	bpf_task_release(acquired);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("access beyond the end of member comm")
+int BPF_PROG(task_access_comm1, struct task_struct *task, u64 clone_flags)
+{
+	bpf_strncmp(task->comm, 17, "foo");
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("access beyond the end of member comm")
+int BPF_PROG(task_access_comm2, struct task_struct *task, u64 clone_flags)
+{
+	bpf_strncmp(task->comm + 1, 16, "foo");
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("write into memory")
+int BPF_PROG(task_access_comm3, struct task_struct *task, u64 clone_flags)
+{
+	bpf_probe_read_kernel(task->comm, 16, task->comm);
+	return 0;
+}
+
+SEC("fentry/__set_task_comm")
+__failure __msg("R1 type=ptr_ expected")
+int BPF_PROG(task_access_comm4, struct task_struct *task, const char *buf, bool exec)
+{
+	/*
+	 * task->comm is a legacy ptr_to_btf_id. The verifier cannot guarantee
+	 * its safety. Hence it cannot be accessed with normal load insns.
+	 */
+	bpf_strncmp(task->comm, 16, "foo");
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+__failure __msg("R1 must be referenced or trusted")
+int BPF_PROG(task_kfunc_release_in_map, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *local;
+	struct __tasks_kfunc_map_value *v;
+
+	if (tasks_kfunc_map_insert(task))
+		return 0;
+
+	v = tasks_kfunc_map_value_lookup(task);
+	if (!v)
+		return 0;
+
+	bpf_rcu_read_lock();
+	local = v->task;
+	if (!local) {
+		bpf_rcu_read_unlock();
+		return 0;
+	}
+	/* Can't release a kptr that's still stored in a map. */
+	bpf_task_release(local);
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_kfunc_success.c b/tools/testing/selftests/bpf/progs/task_kfunc_success.c
new file mode 100644
index 000000000000..5fb4fc19d26a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_kfunc_success.c
@@ -0,0 +1,419 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "../bpf_experimental.h"
+#include "task_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+int err, pid;
+
+/* Prototype for all of the program trace events below:
+ *
+ * TRACE_EVENT(task_newtask,
+ *         TP_PROTO(struct task_struct *p, u64 clone_flags)
+ */
+
+struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym __weak;
+
+struct task_struct *bpf_task_acquire___one(struct task_struct *task) __ksym __weak;
+/* The two-param bpf_task_acquire doesn't exist */
+struct task_struct *bpf_task_acquire___two(struct task_struct *p, void *ctx) __ksym __weak;
+/* Incorrect type for first param */
+struct task_struct *bpf_task_acquire___three(void *ctx) __ksym __weak;
+
+void invalid_kfunc(void) __ksym __weak;
+void bpf_testmod_test_mod_kfunc(int i) __ksym __weak;
+
+static bool is_test_kfunc_task(void)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	return pid == cur_pid;
+}
+
+static int test_acquire_release(struct task_struct *task)
+{
+	struct task_struct *acquired = NULL;
+
+	if (!bpf_ksym_exists(bpf_task_acquire)) {
+		err = 3;
+		return 0;
+	}
+	if (!bpf_ksym_exists(bpf_testmod_test_mod_kfunc)) {
+		err = 4;
+		return 0;
+	}
+	if (bpf_ksym_exists(invalid_kfunc)) {
+		/* the verifier's dead code elimination should remove this */
+		err = 5;
+		asm volatile ("goto -1"); /* for (;;); */
+	}
+
+	acquired = bpf_task_acquire(task);
+	if (acquired)
+		bpf_task_release(acquired);
+	else
+		err = 6;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_kfunc_flavor_relo, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired = NULL;
+	int fake_ctx = 42;
+
+	if (bpf_ksym_exists(bpf_task_acquire___one)) {
+		acquired = bpf_task_acquire___one(task);
+	} else if (bpf_ksym_exists(bpf_task_acquire___two)) {
+		/* Here, bpf_object__resolve_ksym_func_btf_id's find_ksym_btf_id
+		 * call will find vmlinux's bpf_task_acquire, but subsequent
+		 * bpf_core_types_are_compat will fail
+		 */
+		acquired = bpf_task_acquire___two(task, &fake_ctx);
+		err = 3;
+		return 0;
+	} else if (bpf_ksym_exists(bpf_task_acquire___three)) {
+		/* bpf_core_types_are_compat will fail similarly to above case */
+		acquired = bpf_task_acquire___three(&fake_ctx);
+		err = 4;
+		return 0;
+	}
+
+	if (acquired)
+		bpf_task_release(acquired);
+	else
+		err = 5;
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_kfunc_flavor_relo_not_found, struct task_struct *task, u64 clone_flags)
+{
+	/* Neither symbol should successfully resolve.
+	 * Success or failure of one ___flavor should not affect others
+	 */
+	if (bpf_ksym_exists(bpf_task_acquire___two))
+		err = 1;
+	else if (bpf_ksym_exists(bpf_task_acquire___three))
+		err = 2;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_acquire_release_argument, struct task_struct *task, u64 clone_flags)
+{
+	if (!is_test_kfunc_task())
+		return 0;
+
+	return test_acquire_release(task);
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_acquire_release_current, struct task_struct *task, u64 clone_flags)
+{
+	if (!is_test_kfunc_task())
+		return 0;
+
+	return test_acquire_release(bpf_get_current_task_btf());
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_acquire_leave_in_map, struct task_struct *task, u64 clone_flags)
+{
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = tasks_kfunc_map_insert(task);
+	if (status)
+		err = 1;
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_xchg_release, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *kptr, *acquired;
+	struct __tasks_kfunc_map_value *v, *local;
+	int refcnt, refcnt_after_drop;
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = tasks_kfunc_map_insert(task);
+	if (status) {
+		err = 1;
+		return 0;
+	}
+
+	v = tasks_kfunc_map_value_lookup(task);
+	if (!v) {
+		err = 2;
+		return 0;
+	}
+
+	kptr = bpf_kptr_xchg(&v->task, NULL);
+	if (!kptr) {
+		err = 3;
+		return 0;
+	}
+
+	local = bpf_obj_new(typeof(*local));
+	if (!local) {
+		err = 4;
+		bpf_task_release(kptr);
+		return 0;
+	}
+
+	kptr = bpf_kptr_xchg(&local->task, kptr);
+	if (kptr) {
+		err = 5;
+		bpf_obj_drop(local);
+		bpf_task_release(kptr);
+		return 0;
+	}
+
+	kptr = bpf_kptr_xchg(&local->task, NULL);
+	if (!kptr) {
+		err = 6;
+		bpf_obj_drop(local);
+		return 0;
+	}
+
+	/* Stash a copy into local kptr and check if it is released recursively */
+	acquired = bpf_task_acquire(kptr);
+	if (!acquired) {
+		err = 7;
+		bpf_obj_drop(local);
+		bpf_task_release(kptr);
+		return 0;
+	}
+	bpf_probe_read_kernel(&refcnt, sizeof(refcnt), &acquired->rcu_users);
+
+	acquired = bpf_kptr_xchg(&local->task, acquired);
+	if (acquired) {
+		err = 8;
+		bpf_obj_drop(local);
+		bpf_task_release(kptr);
+		bpf_task_release(acquired);
+		return 0;
+	}
+
+	bpf_obj_drop(local);
+
+	bpf_probe_read_kernel(&refcnt_after_drop, sizeof(refcnt_after_drop), &kptr->rcu_users);
+	if (refcnt != refcnt_after_drop + 1) {
+		err = 9;
+		bpf_task_release(kptr);
+		return 0;
+	}
+
+	bpf_task_release(kptr);
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_map_acquire_release, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *kptr;
+	struct __tasks_kfunc_map_value *v;
+	long status;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	status = tasks_kfunc_map_insert(task);
+	if (status) {
+		err = 1;
+		return 0;
+	}
+
+	v = tasks_kfunc_map_value_lookup(task);
+	if (!v) {
+		err = 2;
+		return 0;
+	}
+
+	bpf_rcu_read_lock();
+	kptr = v->task;
+	if (!kptr) {
+		err = 3;
+	} else {
+		kptr = bpf_task_acquire(kptr);
+		if (!kptr)
+			err = 4;
+		else
+			bpf_task_release(kptr);
+	}
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_current_acquire_release, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *current, *acquired;
+
+	if (!is_test_kfunc_task())
+		return 0;
+
+	current = bpf_get_current_task_btf();
+	acquired = bpf_task_acquire(current);
+	if (acquired)
+		bpf_task_release(acquired);
+	else
+		err = 1;
+
+	return 0;
+}
+
+static void lookup_compare_pid(const struct task_struct *p)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_from_pid(p->pid);
+	if (!acquired) {
+		err = 1;
+		return;
+	}
+
+	if (acquired->pid != p->pid)
+		err = 2;
+	bpf_task_release(acquired);
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_from_pid_arg, struct task_struct *task, u64 clone_flags)
+{
+	if (!is_test_kfunc_task())
+		return 0;
+
+	lookup_compare_pid(task);
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_from_pid_current, struct task_struct *task, u64 clone_flags)
+{
+	if (!is_test_kfunc_task())
+		return 0;
+
+	lookup_compare_pid(bpf_get_current_task_btf());
+	return 0;
+}
+
+static int is_pid_lookup_valid(s32 pid)
+{
+	struct task_struct *acquired;
+
+	acquired = bpf_task_from_pid(pid);
+	if (acquired) {
+		bpf_task_release(acquired);
+		return 1;
+	}
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(test_task_from_pid_invalid, struct task_struct *task, u64 clone_flags)
+{
+	if (!is_test_kfunc_task())
+		return 0;
+
+	bpf_strncmp(task->comm, 12, "foo");
+	bpf_strncmp(task->comm, 16, "foo");
+	bpf_strncmp(&task->comm[8], 4, "foo");
+
+	if (is_pid_lookup_valid(-1)) {
+		err = 1;
+		return 0;
+	}
+
+	if (is_pid_lookup_valid(0xcafef00d)) {
+		err = 2;
+		return 0;
+	}
+
+	return 0;
+}
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(task_kfunc_acquire_trusted_walked, struct task_struct *task, u64 clone_flags)
+{
+	struct task_struct *acquired;
+
+	/* task->group_leader is listed as a trusted, non-NULL field of task struct. */
+	acquired = bpf_task_acquire(task->group_leader);
+	if (acquired)
+		bpf_task_release(acquired);
+	else
+		err = 1;
+
+
+	return 0;
+}
+
+SEC("syscall")
+int test_task_from_vpid_current(const void *ctx)
+{
+	struct task_struct *current, *v_task;
+
+	v_task = bpf_task_from_vpid(1);
+	if (!v_task) {
+		err = 1;
+		return 0;
+	}
+
+	current = bpf_get_current_task_btf();
+
+	/* The current process should be the init process (pid 1) in the new pid namespace. */
+	if (current != v_task)
+		err = 2;
+
+	bpf_task_release(v_task);
+	return 0;
+}
+
+SEC("syscall")
+int test_task_from_vpid_invalid(const void *ctx)
+{
+	struct task_struct *v_task;
+
+	v_task = bpf_task_from_vpid(-1);
+	if (v_task) {
+		err = 1;
+		goto err;
+	}
+
+	/* There should be only one process (current process) in the new pid namespace. */
+	v_task = bpf_task_from_vpid(2);
+	if (v_task) {
+		err = 2;
+		goto err;
+	}
+
+	v_task = bpf_task_from_vpid(9999);
+	if (v_task) {
+		err = 3;
+		goto err;
+	}
+
+	return 0;
+err:
+	bpf_task_release(v_task);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_local_data.bpf.h b/tools/testing/selftests/bpf/progs/task_local_data.bpf.h
new file mode 100644
index 000000000000..432fff2af844
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_local_data.bpf.h
@@ -0,0 +1,237 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TASK_LOCAL_DATA_BPF_H
+#define __TASK_LOCAL_DATA_BPF_H
+
+/*
+ * Task local data is a library that facilitates sharing per-task data
+ * between user space and bpf programs.
+ *
+ *
+ * USAGE
+ *
+ * A TLD, an entry of data in task local data, first needs to be created by the
+ * user space. This is done by calling user space API, TLD_DEFINE_KEY() or
+ * tld_create_key(), with the name of the TLD and the size.
+ *
+ * TLD_DEFINE_KEY(prio, "priority", sizeof(int));
+ *
+ * or
+ *
+ * void func_call(...) {
+ *     tld_key_t prio, in_cs;
+ *
+ *     prio = tld_create_key("priority", sizeof(int));
+ *     in_cs = tld_create_key("in_critical_section", sizeof(bool));
+ *     ...
+ *
+ * A key associated with the TLD, which has an opaque type tld_key_t, will be
+ * initialized or returned. It can be used to get a pointer to the TLD in the
+ * user space by calling tld_get_data().
+ *
+ * In a bpf program, tld_object_init() first needs to be called to initialized a
+ * tld_object on the stack. Then, TLDs can be accessed by calling tld_get_data().
+ * The API will try to fetch the key by the name and use it to locate the data.
+ * A pointer to the TLD will be returned. It also caches the key in a task local
+ * storage map, tld_key_map, whose value type, struct tld_keys, must be defined
+ * by the developer.
+ *
+ * struct tld_keys {
+ *     tld_key_t prio;
+ *     tld_key_t in_cs;
+ * };
+ *
+ * SEC("struct_ops")
+ * void prog(struct task_struct task, ...)
+ * {
+ *     struct tld_object tld_obj;
+ *     int err, *p;
+ *
+ *     err = tld_object_init(task, &tld_obj);
+ *     if (err)
+ *         return;
+ *
+ *     p = tld_get_data(&tld_obj, prio, "priority", sizeof(int));
+ *     if (p)
+ *         // do something depending on *p
+ */
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+
+#define TLD_ROUND_MASK(x, y) ((__typeof__(x))((y) - 1))
+#define TLD_ROUND_UP(x, y) ((((x) - 1) | TLD_ROUND_MASK(x, y)) + 1)
+
+#define TLD_MAX_DATA_CNT (__PAGE_SIZE / sizeof(struct tld_metadata) - 1)
+
+#ifndef TLD_NAME_LEN
+#define TLD_NAME_LEN 62
+#endif
+
+#ifndef TLD_KEY_MAP_CREATE_RETRY
+#define TLD_KEY_MAP_CREATE_RETRY 10
+#endif
+
+typedef struct {
+	__s16 off;
+} tld_key_t;
+
+struct tld_metadata {
+	char name[TLD_NAME_LEN];
+	__u16 size;
+};
+
+struct tld_meta_u {
+	__u8 cnt;
+	__u16 size;
+	struct tld_metadata metadata[TLD_MAX_DATA_CNT];
+};
+
+struct tld_data_u {
+	__u64 start; /* offset of tld_data_u->data in a page */
+	char data[__PAGE_SIZE - sizeof(__u64)];
+};
+
+struct tld_map_value {
+	struct tld_data_u __uptr *data;
+	struct tld_meta_u __uptr *meta;
+};
+
+typedef struct tld_uptr_dummy {
+	struct tld_data_u data[0];
+	struct tld_meta_u meta[0];
+} *tld_uptr_dummy_t;
+
+struct tld_object {
+	struct tld_map_value *data_map;
+	struct tld_keys *key_map;
+	/*
+	 * Force the compiler to generate the actual definition of tld_meta_u
+	 * and tld_data_u in BTF. Without it, tld_meta_u and u_tld_data will
+	 * be BTF_KIND_FWD.
+	 */
+	tld_uptr_dummy_t dummy[0];
+};
+
+/*
+ * Map value of tld_key_map for caching keys. Must be defined by the developer.
+ * Members should be tld_key_t and passed to the 3rd argument of tld_fetch_key().
+ */
+struct tld_keys;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct tld_map_value);
+} tld_data_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct tld_keys);
+} tld_key_map SEC(".maps");
+
+/**
+ * tld_object_init() - Initialize a tld_object.
+ *
+ * @task: The task_struct of the target task
+ * @tld_obj: A pointer to a tld_object to be initialized
+ *
+ * Return 0 on success; -ENODATA if the user space did not initialize task local data
+ * for the current task through tld_get_data(); -ENOMEM if the creation of tld_key_map
+ * fails
+ */
+__attribute__((unused))
+static int tld_object_init(struct task_struct *task, struct tld_object *tld_obj)
+{
+	int i;
+
+	tld_obj->data_map = bpf_task_storage_get(&tld_data_map, task, 0, 0);
+	if (!tld_obj->data_map)
+		return -ENODATA;
+
+	bpf_for(i, 0, TLD_KEY_MAP_CREATE_RETRY) {
+		tld_obj->key_map = bpf_task_storage_get(&tld_key_map, task, 0,
+							BPF_LOCAL_STORAGE_GET_F_CREATE);
+		if (likely(tld_obj->key_map))
+			break;
+	}
+	if (!tld_obj->key_map)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/*
+ * Return the offset of TLD if @name is found. Otherwise, return the current TLD count
+ * using the nonpositive range so that the next tld_get_data() can skip fetching key if
+ * no new TLD is added or start comparing name from the first newly added TLD.
+ */
+__attribute__((unused))
+static int __tld_fetch_key(struct tld_object *tld_obj, const char *name, int i_start)
+{
+	struct tld_metadata *metadata;
+	int i, cnt, start, off = 0;
+
+	if (!tld_obj->data_map || !tld_obj->data_map->data || !tld_obj->data_map->meta)
+		return 0;
+
+	start = tld_obj->data_map->data->start;
+	cnt = tld_obj->data_map->meta->cnt;
+	metadata = tld_obj->data_map->meta->metadata;
+
+	bpf_for(i, 0, cnt) {
+		if (i >= TLD_MAX_DATA_CNT)
+			break;
+
+		if (i >= i_start && !bpf_strncmp(metadata[i].name, TLD_NAME_LEN, name))
+			return start + off;
+
+		off += TLD_ROUND_UP(metadata[i].size, 8);
+	}
+
+	return -cnt;
+}
+
+/**
+ * tld_get_data() - Retrieve a pointer to the TLD associated with the name.
+ *
+ * @tld_obj: A pointer to a valid tld_object initialized by tld_object_init()
+ * @key: The cached key of the TLD in tld_key_map
+ * @name: The name of the key associated with a TLD
+ * @size: The size of the TLD. Must be a known constant value
+ *
+ * Return a pointer to the TLD associated with @name; NULL if not found or @size is too
+ * big. @key is used to cache the key if the TLD is found to speed up subsequent calls.
+ * It should be defined as an member of tld_keys of tld_key_t type by the developer.
+ */
+#define tld_get_data(tld_obj, key, name, size)						\
+	({										\
+		void *data = NULL, *_data = (tld_obj)->data_map->data;			\
+		long off = (tld_obj)->key_map->key.off;					\
+		int cnt;								\
+											\
+		if (likely(_data)) {							\
+			if (likely(off > 0)) {						\
+				barrier_var(off);					\
+				if (likely(off < __PAGE_SIZE - size))			\
+					data = _data + off;				\
+			} else {							\
+				cnt = -(off);						\
+				if (likely((tld_obj)->data_map->meta) &&		\
+				    cnt < (tld_obj)->data_map->meta->cnt) {		\
+					off = __tld_fetch_key(tld_obj, name, cnt);	\
+					(tld_obj)->key_map->key.off = off;		\
+											\
+					if (likely(off < __PAGE_SIZE - size)) {		\
+						barrier_var(off);			\
+						if (off > 0)				\
+							data = _data + off;		\
+					}						\
+				}							\
+			}								\
+		}									\
+		data;									\
+	})
+
+#endif
diff --git a/tools/testing/selftests/bpf/progs/task_local_storage.c b/tools/testing/selftests/bpf/progs/task_local_storage.c
new file mode 100644
index 000000000000..80a0a20db88d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_local_storage.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} enter_id SEC(".maps");
+
+#define MAGIC_VALUE 0xabcd1234
+
+pid_t target_pid = 0;
+int mismatch_cnt = 0;
+int enter_cnt = 0;
+int exit_cnt = 0;
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(on_enter, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+	long *ptr;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	ptr = bpf_task_storage_get(&enter_id, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		return 0;
+
+	__sync_fetch_and_add(&enter_cnt, 1);
+	*ptr = MAGIC_VALUE + enter_cnt;
+
+	return 0;
+}
+
+SEC("tp_btf/sys_exit")
+int BPF_PROG(on_exit, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+	long *ptr;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	ptr = bpf_task_storage_get(&enter_id, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!ptr)
+		return 0;
+
+	__sync_fetch_and_add(&exit_cnt, 1);
+	if (*ptr != MAGIC_VALUE + exit_cnt)
+		__sync_fetch_and_add(&mismatch_cnt, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_local_storage_exit_creds.c b/tools/testing/selftests/bpf/progs/task_local_storage_exit_creds.c
new file mode 100644
index 000000000000..41d88ed222ff
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_local_storage_exit_creds.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, __u64);
+} task_storage SEC(".maps");
+
+int run_count = 0;
+int valid_ptr_count = 0;
+int null_ptr_count = 0;
+
+SEC("fentry/exit_creds")
+int BPF_PROG(trace_exit_creds, struct task_struct *task)
+{
+	__u64 *ptr;
+
+	ptr = bpf_task_storage_get(&task_storage, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		__sync_fetch_and_add(&valid_ptr_count, 1);
+	else
+		__sync_fetch_and_add(&null_ptr_count, 1);
+
+	__sync_fetch_and_add(&run_count, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_ls_recursion.c b/tools/testing/selftests/bpf/progs/task_ls_recursion.c
new file mode 100644
index 000000000000..f1853c38aada
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_ls_recursion.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#ifndef EBUSY
+#define EBUSY 16
+#endif
+
+char _license[] SEC("license") = "GPL";
+int nr_del_errs = 0;
+int test_pid = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_a SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} map_b SEC(".maps");
+
+SEC("fentry/bpf_local_storage_update")
+int BPF_PROG(on_update)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	long *ptr;
+
+	if (!test_pid || task->pid != test_pid)
+		return 0;
+
+	ptr = bpf_task_storage_get(&map_a, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	/* ptr will not be NULL when it is called from
+	 * the bpf_task_storage_get(&map_b,...F_CREATE) in
+	 * the BPF_PROG(on_enter) below.  It is because
+	 * the value can be found in map_a and the kernel
+	 * does not need to acquire any spin_lock.
+	 */
+	if (ptr) {
+		int err;
+
+		*ptr += 1;
+		err = bpf_task_storage_delete(&map_a, task);
+		if (err == -EBUSY)
+			nr_del_errs++;
+	}
+
+	/* This will still fail because map_b is empty and
+	 * this BPF_PROG(on_update) has failed to acquire
+	 * the percpu busy lock => meaning potential
+	 * deadlock is detected and it will fail to create
+	 * new storage.
+	 */
+	ptr = bpf_task_storage_get(&map_b, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr)
+		*ptr += 1;
+
+	return 0;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(on_enter, struct pt_regs *regs, long id)
+{
+	struct task_struct *task;
+	long *ptr;
+
+	task = bpf_get_current_task_btf();
+	if (!test_pid || task->pid != test_pid)
+		return 0;
+
+	ptr = bpf_task_storage_get(&map_a, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr && !*ptr)
+		*ptr = 200;
+
+	ptr = bpf_task_storage_get(&map_b, task, 0,
+				   BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (ptr && !*ptr)
+		*ptr = 100;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_ls_uptr.c b/tools/testing/selftests/bpf/progs/task_ls_uptr.c
new file mode 100644
index 000000000000..ddbe11b46eef
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_ls_uptr.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "uptr_test_common.h"
+
+struct task_struct *bpf_task_from_pid(s32 pid) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+void bpf_cgroup_release(struct cgroup *cgrp) __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct value_type);
+} datamap SEC(".maps");
+
+pid_t target_pid = 0;
+pid_t parent_pid = 0;
+
+SEC("tp_btf/sys_enter")
+int on_enter(__u64 *ctx)
+{
+	struct task_struct *task, *data_task;
+	struct value_type *ptr;
+	struct user_data *udata;
+	struct cgroup *cgrp;
+
+	task = bpf_get_current_task_btf();
+	if (task->pid != target_pid)
+		return 0;
+
+	data_task = bpf_task_from_pid(parent_pid);
+	if (!data_task)
+		return 0;
+
+	ptr = bpf_task_storage_get(&datamap, data_task, 0, 0);
+	bpf_task_release(data_task);
+	if (!ptr)
+		return 0;
+
+	cgrp = bpf_kptr_xchg(&ptr->cgrp, NULL);
+	if (cgrp) {
+		int lvl = cgrp->level;
+
+		bpf_cgroup_release(cgrp);
+		return lvl;
+	}
+
+	udata = ptr->udata;
+	if (!udata || udata->result)
+		return 0;
+	udata->result = MAGIC_VALUE + udata->a + udata->b;
+
+	udata = ptr->nested.udata;
+	if (udata && !udata->nested_result)
+		udata->nested_result = udata->result;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/task_storage_nodeadlock.c b/tools/testing/selftests/bpf/progs/task_storage_nodeadlock.c
new file mode 100644
index 000000000000..986829aaf73a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_storage_nodeadlock.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#ifndef EBUSY
+#define EBUSY 16
+#endif
+
+extern bool CONFIG_PREEMPTION __kconfig __weak;
+int nr_get_errs = 0;
+int nr_del_errs = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} task_storage SEC(".maps");
+
+SEC("lsm.s/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family, int type,
+	     int protocol, int kern)
+{
+	struct task_struct *task;
+	int ret, zero = 0;
+	int *value;
+
+	if (!CONFIG_PREEMPTION)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+	value = bpf_task_storage_get(&task_storage, task, &zero,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!value)
+		__sync_fetch_and_add(&nr_get_errs, 1);
+
+	ret = bpf_task_storage_delete(&task_storage,
+				      bpf_get_current_task_btf());
+	if (ret == -EBUSY)
+		__sync_fetch_and_add(&nr_del_errs, 1);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_work.c b/tools/testing/selftests/bpf/progs/task_work.c
new file mode 100644
index 000000000000..663a80990f8f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_work.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "errno.h"
+
+char _license[] SEC("license") = "GPL";
+
+const void *user_ptr = NULL;
+
+struct elem {
+	char data[128];
+	struct bpf_task_work tw;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} hmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} arrmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} lrumap SEC(".maps");
+
+static int process_work(struct bpf_map *map, void *key, void *value)
+{
+	struct elem *work = value;
+
+	bpf_copy_from_user_str(work->data, sizeof(work->data), (const void *)user_ptr, 0);
+	return 0;
+}
+
+int key = 0;
+
+SEC("perf_event")
+int oncpu_hash_map(struct pt_regs *args)
+{
+	struct elem empty_work = { .data = { 0 } };
+	struct elem *work;
+	struct task_struct *task;
+	int err;
+
+	task = bpf_get_current_task_btf();
+	err = bpf_map_update_elem(&hmap, &key, &empty_work, BPF_NOEXIST);
+	if (err)
+		return 0;
+	work = bpf_map_lookup_elem(&hmap, &key);
+	if (!work)
+		return 0;
+
+	bpf_task_work_schedule_resume_impl(task, &work->tw, &hmap, process_work, NULL);
+	return 0;
+}
+
+SEC("perf_event")
+int oncpu_array_map(struct pt_regs *args)
+{
+	struct elem *work;
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	work = bpf_map_lookup_elem(&arrmap, &key);
+	if (!work)
+		return 0;
+	bpf_task_work_schedule_signal_impl(task, &work->tw, &arrmap, process_work, NULL);
+	return 0;
+}
+
+SEC("perf_event")
+int oncpu_lru_map(struct pt_regs *args)
+{
+	struct elem empty_work = { .data = { 0 } };
+	struct elem *work;
+	struct task_struct *task;
+	int err;
+
+	task = bpf_get_current_task_btf();
+	work = bpf_map_lookup_elem(&lrumap, &key);
+	if (work)
+		return 0;
+	err = bpf_map_update_elem(&lrumap, &key, &empty_work, BPF_NOEXIST);
+	if (err)
+		return 0;
+	work = bpf_map_lookup_elem(&lrumap, &key);
+	if (!work || work->data[0])
+		return 0;
+	bpf_task_work_schedule_resume_impl(task, &work->tw, &lrumap, process_work, NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_work_fail.c b/tools/testing/selftests/bpf/progs/task_work_fail.c
new file mode 100644
index 000000000000..1270953fd092
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_work_fail.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+const void *user_ptr = NULL;
+
+struct elem {
+	char data[128];
+	struct bpf_task_work tw;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} hmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} arrmap SEC(".maps");
+
+static int process_work(struct bpf_map *map, void *key, void *value)
+{
+	struct elem *work = value;
+
+	bpf_copy_from_user_str(work->data, sizeof(work->data), (const void *)user_ptr, 0);
+	return 0;
+}
+
+int key = 0;
+
+SEC("perf_event")
+__failure __msg("doesn't match map pointer in R3")
+int mismatch_map(struct pt_regs *args)
+{
+	struct elem *work;
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	work = bpf_map_lookup_elem(&arrmap, &key);
+	if (!work)
+		return 0;
+	bpf_task_work_schedule_resume_impl(task, &work->tw, &hmap, process_work, NULL);
+	return 0;
+}
+
+SEC("perf_event")
+__failure __msg("arg#1 doesn't point to a map value")
+int no_map_task_work(struct pt_regs *args)
+{
+	struct task_struct *task;
+	struct bpf_task_work tw;
+
+	task = bpf_get_current_task_btf();
+	bpf_task_work_schedule_resume_impl(task, &tw, &hmap, process_work, NULL);
+	return 0;
+}
+
+SEC("perf_event")
+__failure __msg("Possibly NULL pointer passed to trusted arg1")
+int task_work_null(struct pt_regs *args)
+{
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	bpf_task_work_schedule_resume_impl(task, NULL, &hmap, process_work, NULL);
+	return 0;
+}
+
+SEC("perf_event")
+__failure __msg("Possibly NULL pointer passed to trusted arg2")
+int map_null(struct pt_regs *args)
+{
+	struct elem *work;
+	struct task_struct *task;
+
+	task = bpf_get_current_task_btf();
+	work = bpf_map_lookup_elem(&arrmap, &key);
+	if (!work)
+		return 0;
+	bpf_task_work_schedule_resume_impl(task, &work->tw, NULL, process_work, NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/task_work_stress.c b/tools/testing/selftests/bpf/progs/task_work_stress.c
new file mode 100644
index 000000000000..55e555f7f41b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/task_work_stress.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <string.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+#define ENTRIES 128
+
+char _license[] SEC("license") = "GPL";
+
+__u64 callback_scheduled = 0;
+__u64 callback_success = 0;
+__u64 schedule_error = 0;
+__u64 delete_success = 0;
+
+struct elem {
+	__u32 count;
+	struct bpf_task_work tw;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, ENTRIES);
+	__type(key, int);
+	__type(value, struct elem);
+} hmap SEC(".maps");
+
+static int process_work(struct bpf_map *map, void *key, void *value)
+{
+	__sync_fetch_and_add(&callback_success, 1);
+	return 0;
+}
+
+SEC("syscall")
+int schedule_task_work(void *ctx)
+{
+	struct elem empty_work = {.count = 0};
+	struct elem *work;
+	int key = 0, err;
+
+	key = bpf_ktime_get_ns() % ENTRIES;
+	work = bpf_map_lookup_elem(&hmap, &key);
+	if (!work) {
+		bpf_map_update_elem(&hmap, &key, &empty_work, BPF_NOEXIST);
+		work = bpf_map_lookup_elem(&hmap, &key);
+		if (!work)
+			return 0;
+	}
+	err = bpf_task_work_schedule_signal_impl(bpf_get_current_task_btf(), &work->tw, &hmap,
+						 process_work, NULL);
+	if (err)
+		__sync_fetch_and_add(&schedule_error, 1);
+	else
+		__sync_fetch_and_add(&callback_scheduled, 1);
+	return 0;
+}
+
+SEC("syscall")
+int delete_task_work(void *ctx)
+{
+	int key = 0, err;
+
+	key = bpf_get_prandom_u32() % ENTRIES;
+	err = bpf_map_delete_elem(&hmap, &key);
+	if (!err)
+		__sync_fetch_and_add(&delete_success, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/tc_bpf2bpf.c b/tools/testing/selftests/bpf/progs/tc_bpf2bpf.c
new file mode 100644
index 000000000000..fe6249d99b31
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tc_bpf2bpf.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline
+int subprog_tc(struct __sk_buff *skb)
+{
+	int ret = 1;
+
+	__sink(skb);
+	__sink(ret);
+	/* let verifier know that 'subprog_tc' can change pointers to skb->data */
+	bpf_skb_change_proto(skb, 0, 0);
+	return ret;
+}
+
+SEC("tc")
+int entry_tc(struct __sk_buff *skb)
+{
+	return subprog_tc(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tc_dummy.c b/tools/testing/selftests/bpf/progs/tc_dummy.c
new file mode 100644
index 000000000000..69a3d0dc8787
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tc_dummy.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_legacy.h"
+
+SEC("tc")
+int entry(struct __sk_buff *skb)
+{
+	return 1;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c
new file mode 100644
index 000000000000..0016c90e9c13
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops")
+__u32 BPF_PROG(incompl_cong_ops_ssthresh, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_ssthresh;
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(incompl_cong_ops_undo_cwnd, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_cwnd;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops incompl_cong_ops = {
+	/* Intentionally leaving out any of the required cong_avoid() and
+	 * cong_control() here.
+	 */
+	.ssthresh = (void *)incompl_cong_ops_ssthresh,
+	.undo_cwnd = (void *)incompl_cong_ops_undo_cwnd,
+	.name = "bpf_incompl_ops",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c
new file mode 100644
index 000000000000..f95862f570b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_kfunc.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+
+extern void bbr_init(struct sock *sk) __ksym;
+extern void bbr_main(struct sock *sk, u32 ack, int flag, const struct rate_sample *rs) __ksym;
+extern u32 bbr_sndbuf_expand(struct sock *sk) __ksym;
+extern u32 bbr_undo_cwnd(struct sock *sk) __ksym;
+extern void bbr_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym;
+extern u32 bbr_ssthresh(struct sock *sk) __ksym;
+extern u32 bbr_min_tso_segs(struct sock *sk) __ksym;
+extern void bbr_set_state(struct sock *sk, u8 new_state) __ksym;
+
+extern void dctcp_init(struct sock *sk) __ksym;
+extern void dctcp_update_alpha(struct sock *sk, u32 flags) __ksym;
+extern void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev) __ksym;
+extern u32 dctcp_ssthresh(struct sock *sk) __ksym;
+extern u32 dctcp_cwnd_undo(struct sock *sk) __ksym;
+extern void dctcp_state(struct sock *sk, u8 new_state) __ksym;
+
+extern void cubictcp_init(struct sock *sk) __ksym;
+extern u32 cubictcp_recalc_ssthresh(struct sock *sk) __ksym;
+extern void cubictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked) __ksym;
+extern void cubictcp_state(struct sock *sk, u8 new_state) __ksym;
+extern void cubictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event) __ksym;
+extern void cubictcp_acked(struct sock *sk, const struct ack_sample *sample) __ksym;
+
+SEC("struct_ops")
+void BPF_PROG(init, struct sock *sk)
+{
+	bbr_init(sk);
+	dctcp_init(sk);
+	cubictcp_init(sk);
+}
+
+SEC("struct_ops")
+void BPF_PROG(in_ack_event, struct sock *sk, u32 flags)
+{
+	dctcp_update_alpha(sk, flags);
+}
+
+SEC("struct_ops")
+void BPF_PROG(cong_control, struct sock *sk, u32 ack, int flag, const struct rate_sample *rs)
+{
+	bbr_main(sk, ack, flag, rs);
+}
+
+SEC("struct_ops")
+void BPF_PROG(cong_avoid, struct sock *sk, u32 ack, u32 acked)
+{
+	cubictcp_cong_avoid(sk, ack, acked);
+}
+
+SEC("struct_ops")
+u32 BPF_PROG(sndbuf_expand, struct sock *sk)
+{
+	return bbr_sndbuf_expand(sk);
+}
+
+SEC("struct_ops")
+u32 BPF_PROG(undo_cwnd, struct sock *sk)
+{
+	bbr_undo_cwnd(sk);
+	return dctcp_cwnd_undo(sk);
+}
+
+SEC("struct_ops")
+void BPF_PROG(cwnd_event, struct sock *sk, enum tcp_ca_event event)
+{
+	bbr_cwnd_event(sk, event);
+	dctcp_cwnd_event(sk, event);
+	cubictcp_cwnd_event(sk, event);
+}
+
+SEC("struct_ops")
+u32 BPF_PROG(ssthresh, struct sock *sk)
+{
+	bbr_ssthresh(sk);
+	dctcp_ssthresh(sk);
+	return cubictcp_recalc_ssthresh(sk);
+}
+
+SEC("struct_ops")
+u32 BPF_PROG(min_tso_segs, struct sock *sk)
+{
+	return bbr_min_tso_segs(sk);
+}
+
+SEC("struct_ops")
+void BPF_PROG(set_state, struct sock *sk, u8 new_state)
+{
+	bbr_set_state(sk, new_state);
+	dctcp_state(sk, new_state);
+	cubictcp_state(sk, new_state);
+}
+
+SEC("struct_ops")
+void BPF_PROG(pkts_acked, struct sock *sk, const struct ack_sample *sample)
+{
+	cubictcp_acked(sk, sample);
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops tcp_ca_kfunc = {
+	.init		= (void *)init,
+	.in_ack_event	= (void *)in_ack_event,
+	.cong_control	= (void *)cong_control,
+	.cong_avoid	= (void *)cong_avoid,
+	.sndbuf_expand	= (void *)sndbuf_expand,
+	.undo_cwnd	= (void *)undo_cwnd,
+	.cwnd_event	= (void *)cwnd_event,
+	.ssthresh	= (void *)ssthresh,
+	.min_tso_segs	= (void *)min_tso_segs,
+	.set_state	= (void *)set_state,
+	.pkts_acked     = (void *)pkts_acked,
+	.name		= "tcp_ca_kfunc",
+};
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c
new file mode 100644
index 000000000000..54f916a931c6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops")
+size_t BPF_PROG(unsupp_cong_op_get_info, struct sock *sk, u32 ext, int *attr,
+		union tcp_cc_info *info)
+{
+	return 0;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops unsupp_cong_op = {
+	.get_info = (void *)unsupp_cong_op_get_info,
+	.name = "bpf_unsupp_op",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_update.c b/tools/testing/selftests/bpf/progs/tcp_ca_update.c
new file mode 100644
index 000000000000..e4bd82bc0d01
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_update.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+int ca1_cnt = 0;
+int ca2_cnt = 0;
+
+SEC("struct_ops")
+void BPF_PROG(ca_update_1_init, struct sock *sk)
+{
+	ca1_cnt++;
+}
+
+SEC("struct_ops")
+void BPF_PROG(ca_update_2_init, struct sock *sk)
+{
+	ca2_cnt++;
+}
+
+SEC("struct_ops")
+void BPF_PROG(ca_update_cong_control, struct sock *sk,
+	      const struct rate_sample *rs)
+{
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(ca_update_ssthresh, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_ssthresh;
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(ca_update_undo_cwnd, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_cwnd;
+}
+
+SEC(".struct_ops.link")
+struct tcp_congestion_ops ca_update_1 = {
+	.init = (void *)ca_update_1_init,
+	.cong_control = (void *)ca_update_cong_control,
+	.ssthresh = (void *)ca_update_ssthresh,
+	.undo_cwnd = (void *)ca_update_undo_cwnd,
+	.name = "tcp_ca_update",
+};
+
+SEC(".struct_ops.link")
+struct tcp_congestion_ops ca_update_2 = {
+	.init = (void *)ca_update_2_init,
+	.cong_control = (void *)ca_update_cong_control,
+	.ssthresh = (void *)ca_update_ssthresh,
+	.undo_cwnd = (void *)ca_update_undo_cwnd,
+	.name = "tcp_ca_update",
+};
+
+SEC(".struct_ops.link")
+struct tcp_congestion_ops ca_wrong = {
+	.cong_control = (void *)ca_update_cong_control,
+	.ssthresh = (void *)ca_update_ssthresh,
+	.undo_cwnd = (void *)ca_update_undo_cwnd,
+	.name = "tcp_ca_wrong",
+};
+
+SEC(".struct_ops")
+struct tcp_congestion_ops ca_no_link = {
+	.cong_control = (void *)ca_update_cong_control,
+	.ssthresh = (void *)ca_update_ssthresh,
+	.undo_cwnd = (void *)ca_update_undo_cwnd,
+	.name = "tcp_ca_no_link",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c
new file mode 100644
index 000000000000..022291f21dfb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define USEC_PER_SEC 1000000UL
+
+static unsigned int tcp_left_out(const struct tcp_sock *tp)
+{
+	return tp->sacked_out + tp->lost_out;
+}
+
+static unsigned int tcp_packets_in_flight(const struct tcp_sock *tp)
+{
+	return tp->packets_out - tcp_left_out(tp) + tp->retrans_out;
+}
+
+SEC("struct_ops")
+void BPF_PROG(write_sk_pacing_init, struct sock *sk)
+{
+#ifdef ENABLE_ATOMICS_TESTS
+	__sync_bool_compare_and_swap(&sk->sk_pacing_status, SK_PACING_NONE,
+				     SK_PACING_NEEDED);
+#else
+	sk->sk_pacing_status = SK_PACING_NEEDED;
+#endif
+}
+
+SEC("struct_ops")
+void BPF_PROG(write_sk_pacing_cong_control, struct sock *sk,
+	      const struct rate_sample *rs)
+{
+	struct tcp_sock *tp = tcp_sk(sk);
+	unsigned long rate =
+		((tp->snd_cwnd * tp->mss_cache * USEC_PER_SEC) << 3) /
+		(tp->srtt_us ?: 1U << 3);
+	sk->sk_pacing_rate = min(rate, sk->sk_max_pacing_rate);
+	tp->app_limited = (tp->delivered + tcp_packets_in_flight(tp)) ?: 1;
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(write_sk_pacing_ssthresh, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_ssthresh;
+}
+
+SEC("struct_ops")
+__u32 BPF_PROG(write_sk_pacing_undo_cwnd, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_cwnd;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops write_sk_pacing = {
+	.init = (void *)write_sk_pacing_init,
+	.cong_control = (void *)write_sk_pacing_cong_control,
+	.ssthresh = (void *)write_sk_pacing_ssthresh,
+	.undo_cwnd = (void *)write_sk_pacing_undo_cwnd,
+	.name = "bpf_w_sk_pacing",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_rtt.c b/tools/testing/selftests/bpf/progs/tcp_rtt.c
new file mode 100644
index 000000000000..42c729f85524
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_rtt.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct tcp_rtt_storage {
+	__u32 invoked;
+	__u32 dsack_dups;
+	__u32 delivered;
+	__u32 delivered_ce;
+	__u32 icsk_retransmits;
+
+	__u32 mrtt_us;	/* args[0] */
+	__u32 srtt;	/* args[1] */
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct tcp_rtt_storage);
+} socket_storage_map SEC(".maps");
+
+SEC("sockops")
+int _sockops(struct bpf_sock_ops *ctx)
+{
+	struct tcp_rtt_storage *storage;
+	struct bpf_tcp_sock *tcp_sk;
+	int op = (int) ctx->op;
+	struct bpf_sock *sk;
+
+	sk = ctx->sk;
+	if (!sk)
+		return 1;
+
+	storage = bpf_sk_storage_get(&socket_storage_map, sk, 0,
+				     BPF_SK_STORAGE_GET_F_CREATE);
+	if (!storage)
+		return 1;
+
+	if (op == BPF_SOCK_OPS_TCP_CONNECT_CB) {
+		bpf_sock_ops_cb_flags_set(ctx, BPF_SOCK_OPS_RTT_CB_FLAG);
+		return 1;
+	}
+
+	if (op != BPF_SOCK_OPS_RTT_CB)
+		return 1;
+
+	tcp_sk = bpf_tcp_sock(sk);
+	if (!tcp_sk)
+		return 1;
+
+	storage->invoked++;
+
+	storage->dsack_dups = tcp_sk->dsack_dups;
+	storage->delivered = tcp_sk->delivered;
+	storage->delivered_ce = tcp_sk->delivered_ce;
+	storage->icsk_retransmits = tcp_sk->icsk_retransmits;
+
+	storage->mrtt_us = ctx->args[0];
+	storage->srtt = ctx->args[1];
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_access_variable_array.c b/tools/testing/selftests/bpf/progs/test_access_variable_array.c
new file mode 100644
index 000000000000..326b7d1f496a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_access_variable_array.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Bytedance */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+unsigned long span = 0;
+
+SEC("fentry/sched_balance_rq")
+int BPF_PROG(fentry_fentry, int this_cpu, struct rq *this_rq,
+		struct sched_domain *sd)
+{
+	span = sd->span[0];
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_assign_reuse.c b/tools/testing/selftests/bpf/progs/test_assign_reuse.c
new file mode 100644
index 000000000000..4f2e2321ea06
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_assign_reuse.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/pkt_cls.h>
+
+char LICENSE[] SEC("license") = "GPL";
+
+__u64 sk_cookie_seen;
+__u64 reuseport_executed;
+union {
+	struct tcphdr tcp;
+	struct udphdr udp;
+} headers;
+
+const volatile __u16 dest_port;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} sk_map SEC(".maps");
+
+SEC("sk_reuseport")
+int reuse_accept(struct sk_reuseport_md *ctx)
+{
+	reuseport_executed++;
+
+	if (ctx->ip_protocol == IPPROTO_TCP) {
+		if (ctx->data + sizeof(headers.tcp) > ctx->data_end)
+			return SK_DROP;
+
+		if (__builtin_memcmp(&headers.tcp, ctx->data, sizeof(headers.tcp)) != 0)
+			return SK_DROP;
+	} else if (ctx->ip_protocol == IPPROTO_UDP) {
+		if (ctx->data + sizeof(headers.udp) > ctx->data_end)
+			return SK_DROP;
+
+		if (__builtin_memcmp(&headers.udp, ctx->data, sizeof(headers.udp)) != 0)
+			return SK_DROP;
+	} else {
+		return SK_DROP;
+	}
+
+	sk_cookie_seen = bpf_get_socket_cookie(ctx->sk);
+	return SK_PASS;
+}
+
+SEC("sk_reuseport")
+int reuse_drop(struct sk_reuseport_md *ctx)
+{
+	reuseport_executed++;
+	sk_cookie_seen = 0;
+	return SK_DROP;
+}
+
+static int
+assign_sk(struct __sk_buff *skb)
+{
+	int zero = 0, ret = 0;
+	struct bpf_sock *sk;
+
+	sk = bpf_map_lookup_elem(&sk_map, &zero);
+	if (!sk)
+		return TC_ACT_SHOT;
+	ret = bpf_sk_assign(skb, sk, 0);
+	bpf_sk_release(sk);
+	return ret ? TC_ACT_SHOT : TC_ACT_OK;
+}
+
+static bool
+maybe_assign_tcp(struct __sk_buff *skb, struct tcphdr *th)
+{
+	if (th + 1 > (void *)(long)(skb->data_end))
+		return TC_ACT_SHOT;
+
+	if (!th->syn || th->ack || th->dest != bpf_htons(dest_port))
+		return TC_ACT_OK;
+
+	__builtin_memcpy(&headers.tcp, th, sizeof(headers.tcp));
+	return assign_sk(skb);
+}
+
+static bool
+maybe_assign_udp(struct __sk_buff *skb, struct udphdr *uh)
+{
+	if (uh + 1 > (void *)(long)(skb->data_end))
+		return TC_ACT_SHOT;
+
+	if (uh->dest != bpf_htons(dest_port))
+		return TC_ACT_OK;
+
+	__builtin_memcpy(&headers.udp, uh, sizeof(headers.udp));
+	return assign_sk(skb);
+}
+
+SEC("tc")
+int tc_main(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ethhdr *eth;
+
+	eth = (struct ethhdr *)(data);
+	if (eth + 1 > data_end)
+		return TC_ACT_SHOT;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)(data + sizeof(*eth));
+
+		if (iph + 1 > data_end)
+			return TC_ACT_SHOT;
+
+		if (iph->protocol == IPPROTO_TCP)
+			return maybe_assign_tcp(skb, (struct tcphdr *)(iph + 1));
+		else if (iph->protocol == IPPROTO_UDP)
+			return maybe_assign_udp(skb, (struct udphdr *)(iph + 1));
+		else
+			return TC_ACT_SHOT;
+	} else {
+		struct ipv6hdr *ip6h = (struct ipv6hdr *)(data + sizeof(*eth));
+
+		if (ip6h + 1 > data_end)
+			return TC_ACT_SHOT;
+
+		if (ip6h->nexthdr == IPPROTO_TCP)
+			return maybe_assign_tcp(skb, (struct tcphdr *)(ip6h + 1));
+		else if (ip6h->nexthdr == IPPROTO_UDP)
+			return maybe_assign_udp(skb, (struct udphdr *)(ip6h + 1));
+		else
+			return TC_ACT_SHOT;
+	}
+}
diff --git a/tools/testing/selftests/bpf/progs/test_attach_kprobe_sleepable.c b/tools/testing/selftests/bpf/progs/test_attach_kprobe_sleepable.c
new file mode 100644
index 000000000000..f548b7446218
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_attach_kprobe_sleepable.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+int kprobe_res = 0;
+
+/**
+ * This program will be manually made sleepable on the userspace side
+ * and should thus be unattachable.
+ */
+SEC("kprobe/" SYS_PREFIX "sys_nanosleep")
+int handle_kprobe_sleepable(struct pt_regs *ctx)
+{
+	kprobe_res = 1;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_attach_probe.c b/tools/testing/selftests/bpf/progs/test_attach_probe.c
new file mode 100644
index 000000000000..fb79e6cab932
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_attach_probe.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include <errno.h>
+#include "bpf_misc.h"
+
+u32 dynamic_sz = 1;
+int kprobe2_res = 0;
+int kretprobe2_res = 0;
+int uprobe_byname_res = 0;
+int uretprobe_byname_res = 0;
+int uprobe_byname2_res = 0;
+int uretprobe_byname2_res = 0;
+int uprobe_byname3_sleepable_res = 0;
+int uprobe_byname3_str_sleepable_res = 0;
+int uprobe_byname3_res = 0;
+int uretprobe_byname3_sleepable_res = 0;
+int uretprobe_byname3_str_sleepable_res = 0;
+int uretprobe_byname3_res = 0;
+void *user_ptr = 0;
+
+int bpf_copy_from_user_str(void *dst, u32, const void *, u64) __weak __ksym;
+
+SEC("ksyscall/nanosleep")
+int BPF_KSYSCALL(handle_kprobe_auto, struct __kernel_timespec *req, struct __kernel_timespec *rem)
+{
+	kprobe2_res = 11;
+	return 0;
+}
+
+SEC("kretsyscall/nanosleep")
+int BPF_KRETPROBE(handle_kretprobe_auto, int ret)
+{
+	kretprobe2_res = 22;
+	return ret;
+}
+
+SEC("uprobe")
+int handle_uprobe_ref_ctr(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("uretprobe")
+int handle_uretprobe_ref_ctr(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("uprobe")
+int handle_uprobe_byname(struct pt_regs *ctx)
+{
+	uprobe_byname_res = 5;
+	return 0;
+}
+
+/* use auto-attach format for section definition. */
+SEC("uretprobe//proc/self/exe:trigger_func2")
+int handle_uretprobe_byname(struct pt_regs *ctx)
+{
+	uretprobe_byname_res = 6;
+	return 0;
+}
+
+SEC("uprobe")
+int BPF_UPROBE(handle_uprobe_byname2, const char *pathname, const char *mode)
+{
+	char mode_buf[2] = {};
+
+	/* verify fopen mode */
+	bpf_probe_read_user(mode_buf, sizeof(mode_buf), mode);
+	if (mode_buf[0] == 'r' && mode_buf[1] == 0)
+		uprobe_byname2_res = 7;
+	return 0;
+}
+
+SEC("uretprobe")
+int BPF_URETPROBE(handle_uretprobe_byname2, void *ret)
+{
+	uretprobe_byname2_res = 8;
+	return 0;
+}
+
+static __always_inline bool verify_sleepable_user_copy(void)
+{
+	char data[9];
+
+	bpf_copy_from_user(data, sizeof(data), user_ptr);
+	return bpf_strncmp(data, sizeof(data), "test_data") == 0;
+}
+
+static __always_inline bool verify_sleepable_user_copy_str(void)
+{
+	int ret;
+	char data_long[20];
+	char data_long_pad[20];
+	char data_long_err[20];
+	char data_short[4];
+	char data_short_pad[4];
+
+	ret = bpf_copy_from_user_str(data_short, sizeof(data_short), user_ptr, 0);
+
+	if (bpf_strncmp(data_short, 4, "tes\0") != 0 || ret != 4)
+		return false;
+
+	ret = bpf_copy_from_user_str(data_short_pad, sizeof(data_short_pad), user_ptr, BPF_F_PAD_ZEROS);
+
+	if (bpf_strncmp(data_short, 4, "tes\0") != 0 || ret != 4)
+		return false;
+
+	/* Make sure this passes the verifier */
+	ret = bpf_copy_from_user_str(data_long, dynamic_sz & sizeof(data_long), user_ptr, 0);
+
+	if (ret != 0)
+		return false;
+
+	ret = bpf_copy_from_user_str(data_long, sizeof(data_long), user_ptr, 0);
+
+	if (bpf_strncmp(data_long, 10, "test_data\0") != 0 || ret != 10)
+		return false;
+
+	ret = bpf_copy_from_user_str(data_long_pad, sizeof(data_long_pad), user_ptr, BPF_F_PAD_ZEROS);
+
+	if (bpf_strncmp(data_long_pad, 10, "test_data\0") != 0 || ret != 10 || data_long_pad[19] != '\0')
+		return false;
+
+	ret = bpf_copy_from_user_str(data_long_err, sizeof(data_long_err), (void *)data_long, BPF_F_PAD_ZEROS);
+
+	if (ret > 0 || data_long_err[19] != '\0')
+		return false;
+
+	ret = bpf_copy_from_user_str(data_long, sizeof(data_long), user_ptr, 2);
+
+	if (ret != -EINVAL)
+		return false;
+
+	return true;
+}
+
+SEC("uprobe.s//proc/self/exe:trigger_func3")
+int handle_uprobe_byname3_sleepable(struct pt_regs *ctx)
+{
+	if (verify_sleepable_user_copy())
+		uprobe_byname3_sleepable_res = 9;
+	if (verify_sleepable_user_copy_str())
+		uprobe_byname3_str_sleepable_res = 10;
+	return 0;
+}
+
+/**
+ * same target as the uprobe.s above to force sleepable and non-sleepable
+ * programs in the same bpf_prog_array
+ */
+SEC("uprobe//proc/self/exe:trigger_func3")
+int handle_uprobe_byname3(struct pt_regs *ctx)
+{
+	uprobe_byname3_res = 11;
+	return 0;
+}
+
+SEC("uretprobe.s//proc/self/exe:trigger_func3")
+int handle_uretprobe_byname3_sleepable(struct pt_regs *ctx)
+{
+	if (verify_sleepable_user_copy())
+		uretprobe_byname3_sleepable_res = 12;
+	if (verify_sleepable_user_copy_str())
+		uretprobe_byname3_str_sleepable_res = 13;
+	return 0;
+}
+
+SEC("uretprobe//proc/self/exe:trigger_func3")
+int handle_uretprobe_byname3(struct pt_regs *ctx)
+{
+	uretprobe_byname3_res = 14;
+	return 0;
+}
+
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_attach_probe_manual.c b/tools/testing/selftests/bpf/progs/test_attach_probe_manual.c
new file mode 100644
index 000000000000..7f08bce94596
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_attach_probe_manual.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+int kprobe_res = 0;
+int kretprobe_res = 0;
+int uprobe_res = 0;
+int uretprobe_res = 0;
+int uprobe_byname_res = 0;
+void *user_ptr = 0;
+
+SEC("kprobe")
+int handle_kprobe(struct pt_regs *ctx)
+{
+	kprobe_res = 1;
+	return 0;
+}
+
+SEC("kretprobe")
+int handle_kretprobe(struct pt_regs *ctx)
+{
+	kretprobe_res = 2;
+	return 0;
+}
+
+SEC("uprobe")
+int handle_uprobe(struct pt_regs *ctx)
+{
+	uprobe_res = 3;
+	return 0;
+}
+
+SEC("uretprobe")
+int handle_uretprobe(struct pt_regs *ctx)
+{
+	uretprobe_res = 4;
+	return 0;
+}
+
+SEC("uprobe")
+int handle_uprobe_byname(struct pt_regs *ctx)
+{
+	uprobe_byname_res = 5;
+	return 0;
+}
+
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_autoattach.c b/tools/testing/selftests/bpf/progs/test_autoattach.c
new file mode 100644
index 000000000000..11a44493ebce
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_autoattach.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+
+bool prog1_called = false;
+bool prog2_called = false;
+
+SEC("raw_tp/sys_enter")
+int prog1(const void *ctx)
+{
+	prog1_called = true;
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int prog2(const void *ctx)
+{
+	prog2_called = true;
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_autoload.c b/tools/testing/selftests/bpf/progs/test_autoload.c
new file mode 100644
index 000000000000..62c8cdec6d5d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_autoload.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+bool prog1_called = false;
+bool prog2_called = false;
+bool prog3_called = false;
+
+SEC("raw_tp/sys_enter")
+int prog1(const void *ctx)
+{
+	prog1_called = true;
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int prog2(const void *ctx)
+{
+	prog2_called = true;
+	return 0;
+}
+
+struct fake_kernel_struct {
+	int whatever;
+} __attribute__((preserve_access_index));
+
+SEC("fentry/unexisting-kprobe-will-fail-if-loaded")
+int prog3(const void *ctx)
+{
+	struct fake_kernel_struct *fake = (void *)ctx;
+	fake->whatever = 123;
+	prog3_called = true;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_cookie.c b/tools/testing/selftests/bpf/progs/test_bpf_cookie.c
new file mode 100644
index 000000000000..c83142b55f47
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_bpf_cookie.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <errno.h>
+
+int my_tid;
+
+__u64 kprobe_res;
+__u64 kprobe_multi_res;
+__u64 kretprobe_res;
+__u64 uprobe_res;
+__u64 uretprobe_res;
+__u64 tp_res;
+__u64 pe_res;
+__u64 raw_tp_res;
+__u64 tp_btf_res;
+__u64 fentry_res;
+__u64 fexit_res;
+__u64 fmod_ret_res;
+__u64 lsm_res;
+
+static void update(void *ctx, __u64 *res)
+{
+	if (my_tid != (u32)bpf_get_current_pid_tgid())
+		return;
+
+	*res |= bpf_get_attach_cookie(ctx);
+}
+
+SEC("kprobe")
+int handle_kprobe(struct pt_regs *ctx)
+{
+	update(ctx, &kprobe_res);
+	return 0;
+}
+
+SEC("kretprobe")
+int handle_kretprobe(struct pt_regs *ctx)
+{
+	update(ctx, &kretprobe_res);
+	return 0;
+}
+
+SEC("uprobe")
+int handle_uprobe(struct pt_regs *ctx)
+{
+	update(ctx, &uprobe_res);
+	return 0;
+}
+
+SEC("uretprobe")
+int handle_uretprobe(struct pt_regs *ctx)
+{
+	update(ctx, &uretprobe_res);
+	return 0;
+}
+
+/* bpf_prog_array, used by kernel internally to keep track of attached BPF
+ * programs to a given BPF hook (e.g., for tracepoints) doesn't allow the same
+ * BPF program to be attached multiple times. So have three identical copies
+ * ready to attach to the same tracepoint.
+ */
+SEC("tp/syscalls/sys_enter_nanosleep")
+int handle_tp1(struct pt_regs *ctx)
+{
+	update(ctx, &tp_res);
+	return 0;
+}
+SEC("tp/syscalls/sys_enter_nanosleep")
+int handle_tp2(struct pt_regs *ctx)
+{
+	update(ctx, &tp_res);
+	return 0;
+}
+SEC("tp/syscalls/sys_enter_nanosleep")
+int handle_tp3(void *ctx)
+{
+	update(ctx, &tp_res);
+	return 1;
+}
+
+SEC("perf_event")
+int handle_pe(struct pt_regs *ctx)
+{
+	update(ctx, &pe_res);
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handle_raw_tp(void *ctx)
+{
+	update(ctx, &raw_tp_res);
+	return 0;
+}
+
+SEC("tp_btf/sys_enter")
+int handle_tp_btf(void *ctx)
+{
+	update(ctx, &tp_btf_res);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(fentry_test1, int a)
+{
+	update(ctx, &fentry_res);
+	return 0;
+}
+
+SEC("fexit/bpf_fentry_test1")
+int BPF_PROG(fexit_test1, int a, int ret)
+{
+	update(ctx, &fexit_res);
+	return 0;
+}
+
+SEC("fmod_ret/bpf_modify_return_test")
+int BPF_PROG(fmod_ret_test, int _a, int *_b, int _ret)
+{
+	update(ctx, &fmod_ret_res);
+	return 1234;
+}
+
+SEC("lsm/file_mprotect")
+int BPF_PROG(test_int_hook, struct vm_area_struct *vma,
+	     unsigned long reqprot, unsigned long prot, int ret)
+{
+	if (my_tid != (u32)bpf_get_current_pid_tgid())
+		return ret;
+	update(ctx, &lsm_res);
+	return -EPERM;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_ma.c b/tools/testing/selftests/bpf/progs/test_bpf_ma.c
new file mode 100644
index 000000000000..4a4e0b8d9b72
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_bpf_ma.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023. Huawei Technologies Co., Ltd */
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+
+struct generic_map_value {
+	void *data;
+};
+
+char _license[] SEC("license") = "GPL";
+
+const unsigned int data_sizes[] = {16, 32, 64, 96, 128, 192, 256, 512, 1024, 2048, 4096};
+const volatile unsigned int data_btf_ids[ARRAY_SIZE(data_sizes)] = {};
+
+const unsigned int percpu_data_sizes[] = {8, 16, 32, 64, 96, 128, 192, 256, 512};
+const volatile unsigned int percpu_data_btf_ids[ARRAY_SIZE(data_sizes)] = {};
+
+int err = 0;
+u32 pid = 0;
+
+#define DEFINE_ARRAY_WITH_KPTR(_size) \
+	struct bin_data_##_size { \
+		char data[_size - sizeof(void *)]; \
+	}; \
+	/* See Commit 5d8d6634ccc, force btf generation for type bin_data_##_size */	\
+	struct bin_data_##_size *__bin_data_##_size; \
+	struct map_value_##_size { \
+		struct bin_data_##_size __kptr * data; \
+	}; \
+	struct { \
+		__uint(type, BPF_MAP_TYPE_ARRAY); \
+		__type(key, int); \
+		__type(value, struct map_value_##_size); \
+		__uint(max_entries, 128); \
+	} array_##_size SEC(".maps")
+
+#define DEFINE_ARRAY_WITH_PERCPU_KPTR(_size) \
+	struct percpu_bin_data_##_size { \
+		char data[_size]; \
+	}; \
+	struct percpu_bin_data_##_size *__percpu_bin_data_##_size; \
+	struct map_value_percpu_##_size { \
+		struct percpu_bin_data_##_size __percpu_kptr * data; \
+	}; \
+	struct { \
+		__uint(type, BPF_MAP_TYPE_ARRAY); \
+		__type(key, int); \
+		__type(value, struct map_value_percpu_##_size); \
+		__uint(max_entries, 128); \
+	} array_percpu_##_size SEC(".maps")
+
+static __always_inline void batch_alloc(struct bpf_map *map, unsigned int batch, unsigned int idx)
+{
+	struct generic_map_value *value;
+	unsigned int i, key;
+	void *old, *new;
+
+	for (i = 0; i < batch; i++) {
+		key = i;
+		value = bpf_map_lookup_elem(map, &key);
+		if (!value) {
+			err = 1;
+			return;
+		}
+		new = bpf_obj_new_impl(data_btf_ids[idx], NULL);
+		if (!new) {
+			err = 2;
+			return;
+		}
+		old = bpf_kptr_xchg(&value->data, new);
+		if (old) {
+			bpf_obj_drop(old);
+			err = 3;
+			return;
+		}
+	}
+}
+
+static __always_inline void batch_free(struct bpf_map *map, unsigned int batch, unsigned int idx)
+{
+	struct generic_map_value *value;
+	unsigned int i, key;
+	void *old;
+
+	for (i = 0; i < batch; i++) {
+		key = i;
+		value = bpf_map_lookup_elem(map, &key);
+		if (!value) {
+			err = 4;
+			return;
+		}
+		old = bpf_kptr_xchg(&value->data, NULL);
+		if (!old) {
+			err = 5;
+			return;
+		}
+		bpf_obj_drop(old);
+	}
+}
+
+static __always_inline void batch_percpu_alloc(struct bpf_map *map, unsigned int batch,
+					       unsigned int idx)
+{
+	struct generic_map_value *value;
+	unsigned int i, key;
+	void *old, *new;
+
+	for (i = 0; i < batch; i++) {
+		key = i;
+		value = bpf_map_lookup_elem(map, &key);
+		if (!value) {
+			err = 1;
+			return;
+		}
+		/* per-cpu allocator may not be able to refill in time */
+		new = bpf_percpu_obj_new_impl(percpu_data_btf_ids[idx], NULL);
+		if (!new)
+			continue;
+
+		old = bpf_kptr_xchg(&value->data, new);
+		if (old) {
+			bpf_percpu_obj_drop(old);
+			err = 2;
+			return;
+		}
+	}
+}
+
+static __always_inline void batch_percpu_free(struct bpf_map *map, unsigned int batch,
+					      unsigned int idx)
+{
+	struct generic_map_value *value;
+	unsigned int i, key;
+	void *old;
+
+	for (i = 0; i < batch; i++) {
+		key = i;
+		value = bpf_map_lookup_elem(map, &key);
+		if (!value) {
+			err = 3;
+			return;
+		}
+		old = bpf_kptr_xchg(&value->data, NULL);
+		if (!old)
+			continue;
+		bpf_percpu_obj_drop(old);
+	}
+}
+
+#define CALL_BATCH_ALLOC(size, batch, idx) \
+	batch_alloc((struct bpf_map *)(&array_##size), batch, idx)
+
+#define CALL_BATCH_ALLOC_FREE(size, batch, idx) \
+	do { \
+		batch_alloc((struct bpf_map *)(&array_##size), batch, idx); \
+		batch_free((struct bpf_map *)(&array_##size), batch, idx); \
+	} while (0)
+
+#define CALL_BATCH_PERCPU_ALLOC(size, batch, idx) \
+	batch_percpu_alloc((struct bpf_map *)(&array_percpu_##size), batch, idx)
+
+#define CALL_BATCH_PERCPU_ALLOC_FREE(size, batch, idx) \
+	do { \
+		batch_percpu_alloc((struct bpf_map *)(&array_percpu_##size), batch, idx); \
+		batch_percpu_free((struct bpf_map *)(&array_percpu_##size), batch, idx); \
+	} while (0)
+
+/* kptr doesn't support bin_data_8 which is a zero-sized array */
+DEFINE_ARRAY_WITH_KPTR(16);
+DEFINE_ARRAY_WITH_KPTR(32);
+DEFINE_ARRAY_WITH_KPTR(64);
+DEFINE_ARRAY_WITH_KPTR(96);
+DEFINE_ARRAY_WITH_KPTR(128);
+DEFINE_ARRAY_WITH_KPTR(192);
+DEFINE_ARRAY_WITH_KPTR(256);
+DEFINE_ARRAY_WITH_KPTR(512);
+DEFINE_ARRAY_WITH_KPTR(1024);
+DEFINE_ARRAY_WITH_KPTR(2048);
+DEFINE_ARRAY_WITH_KPTR(4096);
+
+DEFINE_ARRAY_WITH_PERCPU_KPTR(8);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(16);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(32);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(64);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(96);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(128);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(192);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(256);
+DEFINE_ARRAY_WITH_PERCPU_KPTR(512);
+
+SEC("?fentry/" SYS_PREFIX "sys_nanosleep")
+int test_batch_alloc_free(void *ctx)
+{
+	if ((u32)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	/* Alloc 128 16-bytes objects in batch to trigger refilling,
+	 * then free 128 16-bytes objects in batch to trigger freeing.
+	 */
+	CALL_BATCH_ALLOC_FREE(16, 128, 0);
+	CALL_BATCH_ALLOC_FREE(32, 128, 1);
+	CALL_BATCH_ALLOC_FREE(64, 128, 2);
+	CALL_BATCH_ALLOC_FREE(96, 128, 3);
+	CALL_BATCH_ALLOC_FREE(128, 128, 4);
+	CALL_BATCH_ALLOC_FREE(192, 128, 5);
+	CALL_BATCH_ALLOC_FREE(256, 128, 6);
+	CALL_BATCH_ALLOC_FREE(512, 64, 7);
+	CALL_BATCH_ALLOC_FREE(1024, 32, 8);
+	CALL_BATCH_ALLOC_FREE(2048, 16, 9);
+	CALL_BATCH_ALLOC_FREE(4096, 8, 10);
+
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_nanosleep")
+int test_free_through_map_free(void *ctx)
+{
+	if ((u32)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	/* Alloc 128 16-bytes objects in batch to trigger refilling,
+	 * then free these objects through map free.
+	 */
+	CALL_BATCH_ALLOC(16, 128, 0);
+	CALL_BATCH_ALLOC(32, 128, 1);
+	CALL_BATCH_ALLOC(64, 128, 2);
+	CALL_BATCH_ALLOC(96, 128, 3);
+	CALL_BATCH_ALLOC(128, 128, 4);
+	CALL_BATCH_ALLOC(192, 128, 5);
+	CALL_BATCH_ALLOC(256, 128, 6);
+	CALL_BATCH_ALLOC(512, 64, 7);
+	CALL_BATCH_ALLOC(1024, 32, 8);
+	CALL_BATCH_ALLOC(2048, 16, 9);
+	CALL_BATCH_ALLOC(4096, 8, 10);
+
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_nanosleep")
+int test_batch_percpu_alloc_free(void *ctx)
+{
+	if ((u32)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	/* Alloc 128 8-bytes per-cpu objects in batch to trigger refilling,
+	 * then free 128 8-bytes per-cpu objects in batch to trigger freeing.
+	 */
+	CALL_BATCH_PERCPU_ALLOC_FREE(8, 128, 0);
+	CALL_BATCH_PERCPU_ALLOC_FREE(16, 128, 1);
+	CALL_BATCH_PERCPU_ALLOC_FREE(32, 128, 2);
+	CALL_BATCH_PERCPU_ALLOC_FREE(64, 128, 3);
+	CALL_BATCH_PERCPU_ALLOC_FREE(96, 128, 4);
+	CALL_BATCH_PERCPU_ALLOC_FREE(128, 128, 5);
+	CALL_BATCH_PERCPU_ALLOC_FREE(192, 128, 6);
+	CALL_BATCH_PERCPU_ALLOC_FREE(256, 128, 7);
+	CALL_BATCH_PERCPU_ALLOC_FREE(512, 64, 8);
+
+	return 0;
+}
+
+SEC("?fentry/" SYS_PREFIX "sys_nanosleep")
+int test_percpu_free_through_map_free(void *ctx)
+{
+	if ((u32)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	/* Alloc 128 8-bytes per-cpu objects in batch to trigger refilling,
+	 * then free these object through map free.
+	 */
+	CALL_BATCH_PERCPU_ALLOC(8, 128, 0);
+	CALL_BATCH_PERCPU_ALLOC(16, 128, 1);
+	CALL_BATCH_PERCPU_ALLOC(32, 128, 2);
+	CALL_BATCH_PERCPU_ALLOC(64, 128, 3);
+	CALL_BATCH_PERCPU_ALLOC(96, 128, 4);
+	CALL_BATCH_PERCPU_ALLOC(128, 128, 5);
+	CALL_BATCH_PERCPU_ALLOC(192, 128, 6);
+	CALL_BATCH_PERCPU_ALLOC(256, 128, 7);
+	CALL_BATCH_PERCPU_ALLOC(512, 64, 8);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_nf.c b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
new file mode 100644
index 000000000000..f7b330ddd007
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define EAFNOSUPPORT 97
+#define EPROTO 71
+#define ENONET 64
+#define EINVAL 22
+#define ENOENT 2
+
+#define NF_CT_ZONE_DIR_ORIG (1 << IP_CT_DIR_ORIGINAL)
+#define NF_CT_ZONE_DIR_REPL (1 << IP_CT_DIR_REPLY)
+
+extern unsigned long CONFIG_HZ __kconfig;
+
+int test_einval_bpf_tuple = 0;
+int test_einval_reserved = 0;
+int test_einval_reserved_new = 0;
+int test_einval_netns_id = 0;
+int test_einval_len_opts = 0;
+int test_eproto_l4proto = 0;
+int test_enonet_netns_id = 0;
+int test_enoent_lookup = 0;
+int test_eafnosupport = 0;
+int test_alloc_entry = -EINVAL;
+int test_insert_entry = -EAFNOSUPPORT;
+int test_succ_lookup = -ENOENT;
+int test_ct_zone_id_alloc_entry = -EINVAL;
+int test_ct_zone_id_insert_entry = -EAFNOSUPPORT;
+int test_ct_zone_id_succ_lookup = -ENOENT;
+int test_ct_zone_dir_enoent_lookup = 0;
+int test_ct_zone_id_enoent_lookup = 0;
+u32 test_delta_timeout = 0;
+u32 test_status = 0;
+u32 test_insert_lookup_mark = 0;
+int test_snat_addr = -EINVAL;
+int test_dnat_addr = -EINVAL;
+__be32 saddr = 0;
+__be16 sport = 0;
+__be32 daddr = 0;
+__be16 dport = 0;
+int test_exist_lookup = -ENOENT;
+u32 test_exist_lookup_mark = 0;
+
+enum nf_nat_manip_type___local {
+	NF_NAT_MANIP_SRC___local,
+	NF_NAT_MANIP_DST___local
+};
+
+struct nf_conn;
+
+struct bpf_ct_opts___local {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 dir;
+	u8 reserved[2];
+};
+
+struct bpf_ct_opts___new {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 dir;
+	u16 ct_zone_id;
+	u8 ct_zone_dir;
+	u8 reserved[3];
+} __attribute__((preserve_access_index));
+
+struct nf_conn *bpf_xdp_ct_alloc(struct xdp_md *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_xdp_ct_lookup(struct xdp_md *, struct bpf_sock_tuple *, u32,
+				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_skb_ct_alloc(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_ct_insert_entry(struct nf_conn *) __ksym;
+void bpf_ct_release(struct nf_conn *) __ksym;
+void bpf_ct_set_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_set_status(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_status(struct nf_conn *, u32) __ksym;
+int bpf_ct_set_nat_info(struct nf_conn *, union nf_inet_addr *,
+			int port, enum nf_nat_manip_type___local) __ksym;
+
+static __always_inline void
+nf_ct_test(struct nf_conn *(*lookup_fn)(void *, struct bpf_sock_tuple *, u32,
+					struct bpf_ct_opts___local *, u32),
+	   struct nf_conn *(*alloc_fn)(void *, struct bpf_sock_tuple *, u32,
+				       struct bpf_ct_opts___local *, u32),
+	   void *ctx)
+{
+	struct bpf_ct_opts___local opts_def = { .l4proto = IPPROTO_TCP, .netns_id = -1 };
+	struct bpf_sock_tuple bpf_tuple;
+	struct nf_conn *ct;
+
+	__builtin_memset(&bpf_tuple, 0, sizeof(bpf_tuple.ipv4));
+
+	ct = lookup_fn(ctx, NULL, 0, &opts_def, sizeof(opts_def));
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_einval_bpf_tuple = opts_def.error;
+
+	opts_def.reserved[0] = 1;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	opts_def.reserved[0] = 0;
+	opts_def.l4proto = IPPROTO_TCP;
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_einval_reserved = opts_def.error;
+
+	opts_def.netns_id = -2;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	opts_def.netns_id = -1;
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_einval_netns_id = opts_def.error;
+
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def) - 1);
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_einval_len_opts = opts_def.error;
+
+	opts_def.l4proto = IPPROTO_ICMP;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	opts_def.l4proto = IPPROTO_TCP;
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_eproto_l4proto = opts_def.error;
+
+	opts_def.netns_id = 0xf00f;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	opts_def.netns_id = -1;
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_enonet_netns_id = opts_def.error;
+
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_enoent_lookup = opts_def.error;
+
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4) - 1, &opts_def,
+		       sizeof(opts_def));
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_eafnosupport = opts_def.error;
+
+	bpf_tuple.ipv4.saddr = bpf_get_prandom_u32(); /* src IP */
+	bpf_tuple.ipv4.daddr = bpf_get_prandom_u32(); /* dst IP */
+	bpf_tuple.ipv4.sport = bpf_get_prandom_u32(); /* src port */
+	bpf_tuple.ipv4.dport = bpf_get_prandom_u32(); /* dst port */
+
+	ct = alloc_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		      sizeof(opts_def));
+	if (ct) {
+		__u16 sport = bpf_get_prandom_u32();
+		__u16 dport = bpf_get_prandom_u32();
+		union nf_inet_addr saddr = {};
+		union nf_inet_addr daddr = {};
+		struct nf_conn *ct_ins;
+
+		bpf_ct_set_timeout(ct, 10000);
+		ct->mark = 77;
+
+		/* snat */
+		saddr.ip = bpf_get_prandom_u32();
+		bpf_ct_set_nat_info(ct, &saddr, sport, NF_NAT_MANIP_SRC___local);
+		/* dnat */
+		daddr.ip = bpf_get_prandom_u32();
+		bpf_ct_set_nat_info(ct, &daddr, dport, NF_NAT_MANIP_DST___local);
+
+		ct_ins = bpf_ct_insert_entry(ct);
+		if (ct_ins) {
+			struct nf_conn *ct_lk;
+
+			ct_lk = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4),
+					  &opts_def, sizeof(opts_def));
+			if (ct_lk) {
+				struct nf_conntrack_tuple *tuple;
+
+				/* check snat and dnat addresses */
+				tuple = &ct_lk->tuplehash[IP_CT_DIR_REPLY].tuple;
+				if (tuple->dst.u3.ip == saddr.ip &&
+				    tuple->dst.u.all == bpf_htons(sport))
+					test_snat_addr = 0;
+				if (tuple->src.u3.ip == daddr.ip &&
+				    tuple->src.u.all == bpf_htons(dport))
+					test_dnat_addr = 0;
+
+				/* update ct entry timeout */
+				bpf_ct_change_timeout(ct_lk, 10000);
+				test_delta_timeout = ct_lk->timeout - bpf_jiffies64();
+				test_delta_timeout /= CONFIG_HZ;
+				test_insert_lookup_mark = ct_lk->mark;
+				bpf_ct_change_status(ct_lk,
+						     IPS_CONFIRMED | IPS_SEEN_REPLY);
+				test_status = ct_lk->status;
+
+				bpf_ct_release(ct_lk);
+				test_succ_lookup = 0;
+			}
+			bpf_ct_release(ct_ins);
+			test_insert_entry = 0;
+		}
+		test_alloc_entry = 0;
+	}
+
+	bpf_tuple.ipv4.saddr = saddr;
+	bpf_tuple.ipv4.daddr = daddr;
+	bpf_tuple.ipv4.sport = sport;
+	bpf_tuple.ipv4.dport = dport;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	if (ct) {
+		test_exist_lookup = 0;
+		if (ct->mark == 42) {
+			ct->mark++;
+			test_exist_lookup_mark = ct->mark;
+		}
+		bpf_ct_release(ct);
+	} else {
+		test_exist_lookup = opts_def.error;
+	}
+}
+
+static __always_inline void
+nf_ct_opts_new_test(struct nf_conn *(*lookup_fn)(void *, struct bpf_sock_tuple *, u32,
+						 struct bpf_ct_opts___new *, u32),
+		    struct nf_conn *(*alloc_fn)(void *, struct bpf_sock_tuple *, u32,
+						struct bpf_ct_opts___new *, u32),
+		    void *ctx)
+{
+	struct bpf_ct_opts___new opts_def = { .l4proto = IPPROTO_TCP, .netns_id = -1 };
+	struct bpf_sock_tuple bpf_tuple;
+	struct nf_conn *ct;
+
+	__builtin_memset(&bpf_tuple, 0, sizeof(bpf_tuple.ipv4));
+
+	opts_def.reserved[0] = 1;
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
+	opts_def.reserved[0] = 0;
+	if (ct)
+		bpf_ct_release(ct);
+	else
+		test_einval_reserved_new = opts_def.error;
+
+	bpf_tuple.ipv4.saddr = bpf_get_prandom_u32(); /* src IP */
+	bpf_tuple.ipv4.daddr = bpf_get_prandom_u32(); /* dst IP */
+	bpf_tuple.ipv4.sport = bpf_get_prandom_u32(); /* src port */
+	bpf_tuple.ipv4.dport = bpf_get_prandom_u32(); /* dst port */
+
+	/* use non-default ct zone */
+	opts_def.ct_zone_id = 10;
+	opts_def.ct_zone_dir = NF_CT_ZONE_DIR_ORIG;
+	ct = alloc_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		      sizeof(opts_def));
+	if (ct) {
+		__u16 sport = bpf_get_prandom_u32();
+		__u16 dport = bpf_get_prandom_u32();
+		union nf_inet_addr saddr = {};
+		union nf_inet_addr daddr = {};
+		struct nf_conn *ct_ins;
+
+		bpf_ct_set_timeout(ct, 10000);
+
+		/* snat */
+		saddr.ip = bpf_get_prandom_u32();
+		bpf_ct_set_nat_info(ct, &saddr, sport, NF_NAT_MANIP_SRC___local);
+		/* dnat */
+		daddr.ip = bpf_get_prandom_u32();
+		bpf_ct_set_nat_info(ct, &daddr, dport, NF_NAT_MANIP_DST___local);
+
+		ct_ins = bpf_ct_insert_entry(ct);
+		if (ct_ins) {
+			struct nf_conn *ct_lk;
+
+			/* entry should exist in same ct zone we inserted it */
+			ct_lk = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4),
+					  &opts_def, sizeof(opts_def));
+			if (ct_lk) {
+				bpf_ct_release(ct_lk);
+				test_ct_zone_id_succ_lookup = 0;
+			}
+
+			/* entry should not exist with wrong direction */
+			opts_def.ct_zone_dir = NF_CT_ZONE_DIR_REPL;
+			ct_lk = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4),
+					  &opts_def, sizeof(opts_def));
+			opts_def.ct_zone_dir = NF_CT_ZONE_DIR_ORIG;
+			if (ct_lk)
+				bpf_ct_release(ct_lk);
+			else
+				test_ct_zone_dir_enoent_lookup = opts_def.error;
+
+			/* entry should not exist in default ct zone */
+			opts_def.ct_zone_id = 0;
+			ct_lk = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4),
+					  &opts_def, sizeof(opts_def));
+			if (ct_lk)
+				bpf_ct_release(ct_lk);
+			else
+				test_ct_zone_id_enoent_lookup = opts_def.error;
+
+			bpf_ct_release(ct_ins);
+			test_ct_zone_id_insert_entry = 0;
+		}
+		test_ct_zone_id_alloc_entry = 0;
+	}
+}
+
+SEC("xdp")
+int nf_xdp_ct_test(struct xdp_md *ctx)
+{
+	nf_ct_test((void *)bpf_xdp_ct_lookup, (void *)bpf_xdp_ct_alloc, ctx);
+	nf_ct_opts_new_test((void *)bpf_xdp_ct_lookup, (void *)bpf_xdp_ct_alloc, ctx);
+	return 0;
+}
+
+SEC("tc")
+int nf_skb_ct_test(struct __sk_buff *ctx)
+{
+	nf_ct_test((void *)bpf_skb_ct_lookup, (void *)bpf_skb_ct_alloc, ctx);
+	nf_ct_opts_new_test((void *)bpf_skb_ct_lookup, (void *)bpf_skb_ct_alloc, ctx);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c b/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c
new file mode 100644
index 000000000000..a586f087ffeb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+struct nf_conn;
+
+struct bpf_ct_opts___local {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 reserved[3];
+} __attribute__((preserve_access_index));
+
+struct nf_conn *bpf_skb_ct_alloc(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_ct_insert_entry(struct nf_conn *) __ksym;
+void bpf_ct_release(struct nf_conn *) __ksym;
+void bpf_ct_set_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_set_status(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_status(struct nf_conn *, u32) __ksym;
+
+SEC("?tc")
+int alloc_release(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_release(ct);
+	return 0;
+}
+
+SEC("?tc")
+int insert_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	return 0;
+}
+
+SEC("?tc")
+int lookup_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_lookup(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_insert_entry(ct);
+	return 0;
+}
+
+SEC("?tc")
+int write_not_allowlisted_field(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_lookup(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct->status = 0xF00;
+	return 0;
+}
+
+SEC("?tc")
+int set_timeout_after_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	bpf_ct_set_timeout(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int set_status_after_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	bpf_ct_set_status(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int change_timeout_after_alloc(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_change_timeout(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int change_status_after_alloc(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_change_status(ct, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_decl_tag.c b/tools/testing/selftests/bpf/progs/test_btf_decl_tag.c
new file mode 100644
index 000000000000..c88ccc53529a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_decl_tag.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#if __has_attribute(btf_decl_tag)
+#define __tag1 __attribute__((btf_decl_tag("tag1")))
+#define __tag2 __attribute__((btf_decl_tag("tag2")))
+volatile const bool skip_tests __tag1 __tag2 = false;
+#else
+#define __tag1
+#define __tag2
+volatile const bool skip_tests = true;
+#endif
+
+struct key_t {
+	int a;
+	int b __tag1 __tag2;
+	int c;
+} __tag1 __tag2;
+
+typedef struct {
+	int a;
+	int b;
+} value_t __tag1 __tag2;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 3);
+	__type(key, struct key_t);
+	__type(value, value_t);
+} hashmap1 SEC(".maps");
+
+
+static __noinline int foo(int x __tag1 __tag2) __tag1 __tag2
+{
+	struct key_t key;
+	value_t val = {};
+
+	key.a = key.b = key.c = x;
+	bpf_map_update_elem(&hashmap1, &key, &val, 0);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(sub, int x)
+{
+	return foo(x);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_btf_ext.c b/tools/testing/selftests/bpf/progs/test_btf_ext.c
new file mode 100644
index 000000000000..cdf20331db04
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_ext.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2025 Meta Platforms Inc. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__noinline static void f0(void)
+{
+	__u64 a = 1;
+
+	__sink(a);
+}
+
+SEC("xdp")
+__u64 global_func(struct xdp_md *xdp)
+{
+	f0();
+	return XDP_DROP;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_btf_map_in_map.c b/tools/testing/selftests/bpf/progs/test_btf_map_in_map.c
new file mode 100644
index 000000000000..c218cf8989a9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_map_in_map.c
@@ -0,0 +1,150 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} inner_map1 SEC(".maps"),
+  inner_map2 SEC(".maps");
+
+struct inner_map_sz2 {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, int);
+} inner_map_sz2 SEC(".maps");
+
+struct outer_arr {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 3);
+	__type(key, int);
+	__type(value, int);
+	/* it's possible to use anonymous struct as inner map definition here */
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_ARRAY);
+		/* changing max_entries to 2 will fail during load
+		 * due to incompatibility with inner_map definition */
+		__uint(max_entries, 1);
+		__type(key, int);
+		__type(value, int);
+	});
+} outer_arr SEC(".maps") = {
+	/* (void *) cast is necessary because we didn't use `struct inner_map`
+	 * in __inner(values, ...)
+	 * Actually, a conscious effort is required to screw up initialization
+	 * of inner map slots, which is a great thing!
+	 */
+	.values = { (void *)&inner_map1, 0, (void *)&inner_map2 },
+};
+
+struct inner_map_sz3 {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(map_flags, BPF_F_INNER_MAP);
+	__uint(max_entries, 3);
+	__type(key, int);
+	__type(value, int);
+} inner_map3 SEC(".maps"),
+  inner_map4 SEC(".maps");
+
+struct inner_map_sz4 {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(map_flags, BPF_F_INNER_MAP);
+	__uint(max_entries, 5);
+	__type(key, int);
+	__type(value, int);
+} inner_map5 SEC(".maps");
+
+struct outer_arr_dyn {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 3);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_ARRAY);
+		__uint(map_flags, BPF_F_INNER_MAP);
+		__uint(max_entries, 1);
+		__type(key, int);
+		__type(value, int);
+	});
+} outer_arr_dyn SEC(".maps") = {
+	.values = {
+		[0] = (void *)&inner_map3,
+		[1] = (void *)&inner_map4,
+		[2] = (void *)&inner_map5,
+	},
+};
+
+struct outer_hash {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 5);
+	__type(key, int);
+	/* Here everything works flawlessly due to reuse of struct inner_map
+	 * and compiler will complain at the attempt to use non-inner_map
+	 * references below. This is great experience.
+	 */
+	__array(values, struct inner_map);
+} outer_hash SEC(".maps") = {
+	.values = {
+		[0] = &inner_map2,
+		[4] = &inner_map1,
+	},
+};
+
+struct sockarr_sz1 {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sockarr_sz1 SEC(".maps");
+
+struct sockarr_sz2 {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, int);
+} sockarr_sz2 SEC(".maps");
+
+struct outer_sockarr_sz1 {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct sockarr_sz1);
+} outer_sockarr SEC(".maps") = {
+	.values = { (void *)&sockarr_sz1 },
+};
+
+int input = 0;
+
+SEC("raw_tp/sys_enter")
+int handle__sys_enter(void *ctx)
+{
+	struct inner_map *inner_map;
+	int key = 0, val;
+
+	inner_map = bpf_map_lookup_elem(&outer_arr, &key);
+	if (!inner_map)
+		return 1;
+	val = input;
+	bpf_map_update_elem(inner_map, &key, &val, 0);
+
+	inner_map = bpf_map_lookup_elem(&outer_hash, &key);
+	if (!inner_map)
+		return 1;
+	val = input + 1;
+	bpf_map_update_elem(inner_map, &key, &val, 0);
+
+	inner_map = bpf_map_lookup_elem(&outer_arr_dyn, &key);
+	if (!inner_map)
+		return 1;
+	val = input + 2;
+	bpf_map_update_elem(inner_map, &key, &val, 0);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_newkv.c b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
new file mode 100644
index 000000000000..251854a041b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_legacy.h"
+
+struct ipv_counts {
+	unsigned int v4;
+	unsigned int v6;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 4);
+	__type(key, int);
+	__type(value, struct ipv_counts);
+} btf_map SEC(".maps");
+
+__attribute__((noinline))
+int test_long_fname_2(void)
+{
+	struct ipv_counts *counts;
+	int key = 0;
+
+	counts = bpf_map_lookup_elem(&btf_map, &key);
+	if (!counts)
+		return 0;
+
+	counts->v6++;
+
+	return 0;
+}
+
+__attribute__((noinline))
+int test_long_fname_1(void)
+{
+	return test_long_fname_2();
+}
+
+SEC("dummy_tracepoint")
+int _dummy_tracepoint(void *arg)
+{
+	return test_long_fname_1();
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_nokv.c b/tools/testing/selftests/bpf/progs/test_btf_nokv.c
new file mode 100644
index 000000000000..1dabb88f8cb4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_nokv.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct ipv_counts {
+	unsigned int v4;
+	unsigned int v6;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(struct ipv_counts));
+	__uint(max_entries, 4);
+} btf_map SEC(".maps");
+
+__attribute__((noinline))
+int test_long_fname_2(void)
+{
+	struct ipv_counts *counts;
+	int key = 0;
+
+	counts = bpf_map_lookup_elem(&btf_map, &key);
+	if (!counts)
+		return 0;
+
+	counts->v6++;
+
+	return 0;
+}
+
+__attribute__((noinline))
+int test_long_fname_1(void)
+{
+	return test_long_fname_2();
+}
+
+SEC("dummy_tracepoint")
+int _dummy_tracepoint(void *arg)
+{
+	return test_long_fname_1();
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c b/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c
new file mode 100644
index 000000000000..1cd1a1b72cb5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_btf_skc_cls_ingress.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#ifndef ENOENT
+#define ENOENT 2
+#endif
+
+struct sockaddr_in6 srv_sa6 = {};
+struct sockaddr_in srv_sa4 = {};
+__u16 listen_tp_sport = 0;
+__u16 req_sk_sport = 0;
+__u32 recv_cookie = 0;
+__u32 gen_cookie = 0;
+__u32 mss = 0;
+__u32 linum = 0;
+
+#define LOG() ({ if (!linum) linum = __LINE__; })
+
+static void test_syncookie_helper(void *iphdr, int iphdr_size,
+				  struct tcphdr *th, struct tcp_sock *tp,
+				  struct __sk_buff *skb)
+{
+	if (th->syn) {
+		__s64 mss_cookie;
+		void *data_end;
+
+		data_end = (void *)(long)(skb->data_end);
+
+		if (th->doff * 4 != 40) {
+			LOG();
+			return;
+		}
+
+		if ((void *)th + 40 > data_end) {
+			LOG();
+			return;
+		}
+
+		mss_cookie = bpf_tcp_gen_syncookie(tp, iphdr, iphdr_size,
+						   th, 40);
+		if (mss_cookie < 0) {
+			if (mss_cookie != -ENOENT)
+				LOG();
+		} else {
+			gen_cookie = (__u32)mss_cookie;
+			mss = mss_cookie >> 32;
+		}
+	} else if (gen_cookie) {
+		/* It was in cookie mode */
+		int ret = bpf_tcp_check_syncookie(tp, iphdr, iphdr_size,
+						  th, sizeof(*th));
+
+		if (ret < 0) {
+			if (ret != -ENOENT)
+				LOG();
+		} else {
+			recv_cookie = bpf_ntohl(th->ack_seq) - 1;
+		}
+	}
+}
+
+static int handle_ip_tcp(struct ethhdr *eth, struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple *tuple = NULL;
+	unsigned int tuple_len = 0;
+	struct bpf_sock *bpf_skc;
+	void *data_end, *iphdr;
+	struct ipv6hdr *ip6h;
+	struct iphdr *ip4h;
+	struct tcphdr *th;
+	int iphdr_size;
+
+	data_end = (void *)(long)(skb->data_end);
+
+	switch (eth->h_proto) {
+	case bpf_htons(ETH_P_IP):
+		ip4h = (struct iphdr *)(eth + 1);
+		if (ip4h + 1 > data_end)
+			return TC_ACT_OK;
+		if (ip4h->protocol != IPPROTO_TCP)
+			return TC_ACT_OK;
+		th = (struct tcphdr *)(ip4h + 1);
+		if (th + 1 > data_end)
+			return TC_ACT_OK;
+		/* Is it the testing traffic? */
+		if (th->dest != srv_sa4.sin_port)
+			return TC_ACT_OK;
+		tuple_len = sizeof(tuple->ipv4);
+		tuple = (struct bpf_sock_tuple *)&ip4h->saddr;
+		iphdr = ip4h;
+		iphdr_size = sizeof(*ip4h);
+		break;
+	case bpf_htons(ETH_P_IPV6):
+		ip6h = (struct ipv6hdr *)(eth + 1);
+		if (ip6h + 1 > data_end)
+			return TC_ACT_OK;
+		if (ip6h->nexthdr != IPPROTO_TCP)
+			return TC_ACT_OK;
+		th = (struct tcphdr *)(ip6h + 1);
+		if (th + 1 > data_end)
+			return TC_ACT_OK;
+		/* Is it the testing traffic? */
+		if (th->dest != srv_sa6.sin6_port)
+			return TC_ACT_OK;
+		tuple_len = sizeof(tuple->ipv6);
+		tuple = (struct bpf_sock_tuple *)&ip6h->saddr;
+		iphdr = ip6h;
+		iphdr_size = sizeof(*ip6h);
+		break;
+	default:
+		return TC_ACT_OK;
+	}
+
+	if ((void *)tuple + tuple_len > data_end) {
+		LOG();
+		return TC_ACT_OK;
+	}
+
+	bpf_skc = bpf_skc_lookup_tcp(skb, tuple, tuple_len,
+				     BPF_F_CURRENT_NETNS, 0);
+	if (!bpf_skc) {
+		LOG();
+		return TC_ACT_OK;
+	}
+
+	if (bpf_skc->state == BPF_TCP_NEW_SYN_RECV) {
+		struct request_sock *req_sk;
+
+		req_sk = (struct request_sock *)bpf_skc_to_tcp_request_sock(bpf_skc);
+		if (!req_sk) {
+			LOG();
+			goto release;
+		}
+
+		if (bpf_sk_assign(skb, req_sk, 0)) {
+			LOG();
+			goto release;
+		}
+
+		req_sk_sport = req_sk->__req_common.skc_num;
+
+		bpf_sk_release(req_sk);
+		return TC_ACT_OK;
+	} else if (bpf_skc->state == BPF_TCP_LISTEN) {
+		struct tcp_sock *tp;
+
+		tp = bpf_skc_to_tcp_sock(bpf_skc);
+		if (!tp) {
+			LOG();
+			goto release;
+		}
+
+		if (bpf_sk_assign(skb, tp, 0)) {
+			LOG();
+			goto release;
+		}
+
+		listen_tp_sport = tp->inet_conn.icsk_inet.sk.__sk_common.skc_num;
+
+		test_syncookie_helper(iphdr, iphdr_size, th, tp, skb);
+		bpf_sk_release(tp);
+		return TC_ACT_OK;
+	}
+
+	if (bpf_sk_assign(skb, bpf_skc, 0))
+		LOG();
+
+release:
+	bpf_sk_release(bpf_skc);
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int cls_ingress(struct __sk_buff *skb)
+{
+	struct ethhdr *eth;
+	void *data_end;
+
+	data_end = (void *)(long)(skb->data_end);
+
+	eth = (struct ethhdr *)(long)(skb->data);
+	if (eth + 1 > data_end)
+		return TC_ACT_OK;
+
+	if (eth->h_proto != bpf_htons(ETH_P_IP) &&
+	    eth->h_proto != bpf_htons(ETH_P_IPV6))
+		return TC_ACT_OK;
+
+	return handle_ip_tcp(eth, skb);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_build_id.c b/tools/testing/selftests/bpf/progs/test_build_id.c
new file mode 100644
index 000000000000..32ce59f9aa27
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_build_id.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct bpf_stack_build_id stack_sleepable[128];
+int res_sleepable;
+
+struct bpf_stack_build_id stack_nofault[128];
+int res_nofault;
+
+SEC("uprobe.multi/./uprobe_multi:uprobe")
+int uprobe_nofault(struct pt_regs *ctx)
+{
+	res_nofault = bpf_get_stack(ctx, stack_nofault, sizeof(stack_nofault),
+				    BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
+
+	return 0;
+}
+
+SEC("uprobe.multi.s/./uprobe_multi:uprobe")
+int uprobe_sleepable(struct pt_regs *ctx)
+{
+	res_sleepable = bpf_get_stack(ctx, stack_sleepable, sizeof(stack_sleepable),
+				      BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_cgroup1_hierarchy.c b/tools/testing/selftests/bpf/progs/test_cgroup1_hierarchy.c
new file mode 100644
index 000000000000..4fee0fdc7607
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cgroup1_hierarchy.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+__u32 target_ancestor_level;
+__u64 target_ancestor_cgid;
+int target_pid, target_hid;
+
+struct cgroup *bpf_task_get_cgroup1(struct task_struct *task, int hierarchy_id) __ksym;
+struct cgroup *bpf_cgroup_ancestor(struct cgroup *cgrp, int level) __ksym;
+void bpf_cgroup_release(struct cgroup *cgrp) __ksym;
+
+static int bpf_link_create_verify(int cmd)
+{
+	struct cgroup *cgrp, *ancestor;
+	struct task_struct *task;
+	int ret = 0;
+
+	if (cmd != BPF_LINK_CREATE)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+
+	/* Then it can run in parallel with others */
+	if (task->pid != target_pid)
+		return 0;
+
+	cgrp = bpf_task_get_cgroup1(task, target_hid);
+	if (!cgrp)
+		return 0;
+
+	/* Refuse it if its cgid or its ancestor's cgid is the target cgid */
+	if (cgrp->kn->id == target_ancestor_cgid)
+		ret = -1;
+
+	ancestor = bpf_cgroup_ancestor(cgrp, target_ancestor_level);
+	if (!ancestor)
+		goto out;
+
+	if (ancestor->kn->id == target_ancestor_cgid)
+		ret = -1;
+	bpf_cgroup_release(ancestor);
+
+out:
+	bpf_cgroup_release(cgrp);
+	return ret;
+}
+
+SEC("lsm/bpf")
+int BPF_PROG(lsm_run, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	return bpf_link_create_verify(cmd);
+}
+
+SEC("lsm.s/bpf")
+int BPF_PROG(lsm_s_run, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	return bpf_link_create_verify(cmd);
+}
+
+SEC("fentry")
+int BPF_PROG(fentry_run)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_cgroup_link.c b/tools/testing/selftests/bpf/progs/test_cgroup_link.c
new file mode 100644
index 000000000000..4faba88e45a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cgroup_link.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int calls = 0;
+int alt_calls = 0;
+
+SEC("cgroup_skb/egress")
+int egress(struct __sk_buff *skb)
+{
+	__sync_fetch_and_add(&calls, 1);
+	return 1;
+}
+
+SEC("cgroup_skb/egress")
+int egress_alt(struct __sk_buff *skb)
+{
+	__sync_fetch_and_add(&alt_calls, 1);
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
+
diff --git a/tools/testing/selftests/bpf/progs/test_check_mtu.c b/tools/testing/selftests/bpf/progs/test_check_mtu.c
new file mode 100644
index 000000000000..7b6b2b342c1d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_check_mtu.c
@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Jesper Dangaard Brouer */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/if_ether.h>
+
+#include <stddef.h>
+#include <stdint.h>
+#include <errno.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Userspace will update with MTU it can see on device */
+volatile const int GLOBAL_USER_MTU;
+volatile const __u32 GLOBAL_USER_IFINDEX;
+
+/* BPF-prog will update these with MTU values it can see */
+__u32 global_bpf_mtu_xdp = 0;
+__u32 global_bpf_mtu_tc  = 0;
+
+SEC("xdp")
+int xdp_use_helper_basic(struct xdp_md *ctx)
+{
+	__u32 mtu_len = 0;
+
+	if (bpf_check_mtu(ctx, 0, &mtu_len, 0, 0))
+		return XDP_ABORTED;
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int xdp_use_helper(struct xdp_md *ctx)
+{
+	int retval = XDP_PASS; /* Expected retval on successful test */
+	__u32 mtu_len = 0;
+	__u32 ifindex = 0;
+	int delta = 0;
+
+	/* When ifindex is zero, save net_device lookup and use ctx netdev */
+	if (GLOBAL_USER_IFINDEX > 0)
+		ifindex = GLOBAL_USER_IFINDEX;
+
+	if (bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0)) {
+		/* mtu_len is also valid when check fail */
+		retval = XDP_ABORTED;
+		goto out;
+	}
+
+	if (mtu_len != GLOBAL_USER_MTU)
+		retval = XDP_DROP;
+
+out:
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("xdp")
+int xdp_exceed_mtu(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	__u32 data_len = data_end - data;
+	int retval = XDP_ABORTED; /* Fail */
+	__u32 mtu_len = 0;
+	int delta;
+	int err;
+
+	/* Exceed MTU with 1 via delta adjust */
+	delta = GLOBAL_USER_MTU - (data_len - ETH_HLEN) + 1;
+
+	err = bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0);
+	if (err) {
+		retval = XDP_PASS; /* Success in exceeding MTU check */
+		if (err != BPF_MTU_CHK_RET_FRAG_NEEDED)
+			retval = XDP_DROP;
+	}
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("xdp")
+int xdp_minus_delta(struct xdp_md *ctx)
+{
+	int retval = XDP_PASS; /* Expected retval on successful test */
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	__u32 data_len = data_end - data;
+	__u32 mtu_len = 0;
+	int delta;
+
+	/* Borderline test case: Minus delta exceeding packet length allowed */
+	delta = -((data_len - ETH_HLEN) + 1);
+
+	/* Minus length (adjusted via delta) still pass MTU check, other helpers
+	 * are responsible for catching this, when doing actual size adjust
+	 */
+	if (bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0))
+		retval = XDP_ABORTED;
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("xdp")
+int xdp_input_len(struct xdp_md *ctx)
+{
+	int retval = XDP_PASS; /* Expected retval on successful test */
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	__u32 data_len = data_end - data;
+
+	/* API allow user give length to check as input via mtu_len param,
+	 * resulting MTU value is still output in mtu_len param after call.
+	 *
+	 * Input len is L3, like MTU and iph->tot_len.
+	 * Remember XDP data_len is L2.
+	 */
+	__u32 mtu_len = data_len - ETH_HLEN;
+
+	if (bpf_check_mtu(ctx, ifindex, &mtu_len, 0, 0))
+		retval = XDP_ABORTED;
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("xdp")
+int xdp_input_len_exceed(struct xdp_md *ctx)
+{
+	int retval = XDP_ABORTED; /* Fail */
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	int err;
+
+	/* API allow user give length to check as input via mtu_len param,
+	 * resulting MTU value is still output in mtu_len param after call.
+	 *
+	 * Input length value is L3 size like MTU.
+	 */
+	__u32 mtu_len = GLOBAL_USER_MTU;
+
+	mtu_len += 1; /* Exceed with 1 */
+
+	err = bpf_check_mtu(ctx, ifindex, &mtu_len, 0, 0);
+	if (err == BPF_MTU_CHK_RET_FRAG_NEEDED)
+		retval = XDP_PASS ; /* Success in exceeding MTU check */
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_use_helper(struct __sk_buff *ctx)
+{
+	int retval = BPF_OK; /* Expected retval on successful test */
+	__u32 mtu_len = 0;
+	int delta = 0;
+
+	if (bpf_check_mtu(ctx, 0, &mtu_len, delta, 0)) {
+		retval = BPF_DROP;
+		goto out;
+	}
+
+	if (mtu_len != GLOBAL_USER_MTU)
+		retval = BPF_REDIRECT;
+out:
+	global_bpf_mtu_tc = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_exceed_mtu(struct __sk_buff *ctx)
+{
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	int retval = BPF_DROP; /* Fail */
+	__u32 skb_len = ctx->len;
+	__u32 mtu_len = 0;
+	int delta;
+	int err;
+
+	/* Exceed MTU with 1 via delta adjust */
+	delta = GLOBAL_USER_MTU - (skb_len - ETH_HLEN) + 1;
+
+	err = bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0);
+	if (err) {
+		retval = BPF_OK; /* Success in exceeding MTU check */
+		if (err != BPF_MTU_CHK_RET_FRAG_NEEDED)
+			retval = BPF_DROP;
+	}
+
+	global_bpf_mtu_tc = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_exceed_mtu_da(struct __sk_buff *ctx)
+{
+	/* SKB Direct-Access variant */
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	__u32 data_len = data_end - data;
+	int retval = BPF_DROP; /* Fail */
+	__u32 mtu_len = 0;
+	int delta;
+	int err;
+
+	/* Exceed MTU with 1 via delta adjust */
+	delta = GLOBAL_USER_MTU - (data_len - ETH_HLEN) + 1;
+
+	err = bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0);
+	if (err) {
+		retval = BPF_OK; /* Success in exceeding MTU check */
+		if (err != BPF_MTU_CHK_RET_FRAG_NEEDED)
+			retval = BPF_DROP;
+	}
+
+	global_bpf_mtu_tc = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_minus_delta(struct __sk_buff *ctx)
+{
+	int retval = BPF_OK; /* Expected retval on successful test */
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	__u32 skb_len = ctx->len;
+	__u32 mtu_len = 0;
+	int delta;
+
+	/* Borderline test case: Minus delta exceeding packet length allowed */
+	delta = -((skb_len - ETH_HLEN) + 1);
+
+	/* Minus length (adjusted via delta) still pass MTU check, other helpers
+	 * are responsible for catching this, when doing actual size adjust
+	 */
+	if (bpf_check_mtu(ctx, ifindex, &mtu_len, delta, 0))
+		retval = BPF_DROP;
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_input_len(struct __sk_buff *ctx)
+{
+	int retval = BPF_OK; /* Expected retval on successful test */
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+
+	/* API allow user give length to check as input via mtu_len param,
+	 * resulting MTU value is still output in mtu_len param after call.
+	 *
+	 * Input length value is L3 size.
+	 */
+	__u32 mtu_len = GLOBAL_USER_MTU;
+
+	if (bpf_check_mtu(ctx, ifindex, &mtu_len, 0, 0))
+		retval = BPF_DROP;
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_input_len_exceed(struct __sk_buff *ctx)
+{
+	int retval = BPF_DROP; /* Fail */
+	__u32 ifindex = GLOBAL_USER_IFINDEX;
+	int err;
+
+	/* API allow user give length to check as input via mtu_len param,
+	 * resulting MTU value is still output in mtu_len param after call.
+	 *
+	 * Input length value is L3 size like MTU.
+	 */
+	__u32 mtu_len = GLOBAL_USER_MTU;
+
+	mtu_len += 1; /* Exceed with 1 */
+
+	err = bpf_check_mtu(ctx, ifindex, &mtu_len, 0, 0);
+	if (err == BPF_MTU_CHK_RET_FRAG_NEEDED)
+		retval = BPF_OK; /* Success in exceeding MTU check */
+
+	global_bpf_mtu_xdp = mtu_len;
+	return retval;
+}
+
+SEC("tc")
+int tc_chk_segs_flag(struct __sk_buff *ctx)
+{
+	__u32 mtu_len = 0;
+	int err;
+
+	err = bpf_check_mtu(ctx, GLOBAL_USER_IFINDEX, &mtu_len, 0, BPF_MTU_CHK_SEGS);
+
+	return err == -EINVAL ? BPF_OK : BPF_DROP;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect.c b/tools/testing/selftests/bpf/progs/test_cls_redirect.c
new file mode 100644
index 000000000000..26a53e54b8fa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cls_redirect.c
@@ -0,0 +1,1076 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2019, 2020 Cloudflare
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/bpf.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/pkt_cls.h>
+#include <linux/tcp.h>
+#include <netinet/udp.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bpf_compiler.h"
+#include "test_cls_redirect.h"
+#include "bpf_misc.h"
+
+#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+
+#ifdef SUBPROGS
+#define INLINING __noinline
+#else
+#define INLINING __always_inline
+#endif
+
+#define IP_OFFSET_MASK (0x1FFF)
+#define IP_MF (0x2000)
+
+char _license[] SEC("license") = "Dual BSD/GPL";
+
+/**
+ * Destination port and IP used for UDP encapsulation.
+ */
+volatile const __be16 ENCAPSULATION_PORT;
+volatile const __be32 ENCAPSULATION_IP;
+
+typedef struct {
+	uint64_t processed_packets_total;
+	uint64_t l3_protocol_packets_total_ipv4;
+	uint64_t l3_protocol_packets_total_ipv6;
+	uint64_t l4_protocol_packets_total_tcp;
+	uint64_t l4_protocol_packets_total_udp;
+	uint64_t accepted_packets_total_syn;
+	uint64_t accepted_packets_total_syn_cookies;
+	uint64_t accepted_packets_total_last_hop;
+	uint64_t accepted_packets_total_icmp_echo_request;
+	uint64_t accepted_packets_total_established;
+	uint64_t forwarded_packets_total_gue;
+	uint64_t forwarded_packets_total_gre;
+
+	uint64_t errors_total_unknown_l3_proto;
+	uint64_t errors_total_unknown_l4_proto;
+	uint64_t errors_total_malformed_ip;
+	uint64_t errors_total_fragmented_ip;
+	uint64_t errors_total_malformed_icmp;
+	uint64_t errors_total_unwanted_icmp;
+	uint64_t errors_total_malformed_icmp_pkt_too_big;
+	uint64_t errors_total_malformed_tcp;
+	uint64_t errors_total_malformed_udp;
+	uint64_t errors_total_icmp_echo_replies;
+	uint64_t errors_total_malformed_encapsulation;
+	uint64_t errors_total_encap_adjust_failed;
+	uint64_t errors_total_encap_buffer_too_small;
+	uint64_t errors_total_redirect_loop;
+	uint64_t errors_total_encap_mtu_violate;
+} metrics_t;
+
+typedef enum {
+	INVALID = 0,
+	UNKNOWN,
+	ECHO_REQUEST,
+	SYN,
+	SYN_COOKIE,
+	ESTABLISHED,
+} verdict_t;
+
+typedef struct {
+	uint16_t src, dst;
+} flow_ports_t;
+
+_Static_assert(
+	sizeof(flow_ports_t) !=
+		offsetofend(struct bpf_sock_tuple, ipv4.dport) -
+			offsetof(struct bpf_sock_tuple, ipv4.sport) - 1,
+	"flow_ports_t must match sport and dport in struct bpf_sock_tuple");
+_Static_assert(
+	sizeof(flow_ports_t) !=
+		offsetofend(struct bpf_sock_tuple, ipv6.dport) -
+			offsetof(struct bpf_sock_tuple, ipv6.sport) - 1,
+	"flow_ports_t must match sport and dport in struct bpf_sock_tuple");
+
+typedef int ret_t;
+
+/* This is a bit of a hack. We need a return value which allows us to
+ * indicate that the regular flow of the program should continue,
+ * while allowing functions to use XDP_PASS and XDP_DROP, etc.
+ */
+static const ret_t CONTINUE_PROCESSING = -1;
+
+/* Convenience macro to call functions which return ret_t.
+ */
+#define MAYBE_RETURN(x)                           \
+	do {                                      \
+		ret_t __ret = x;                  \
+		if (__ret != CONTINUE_PROCESSING) \
+			return __ret;             \
+	} while (0)
+
+/* Linux packet pointers are either aligned to NET_IP_ALIGN (aka 2 bytes),
+ * or not aligned if the arch supports efficient unaligned access.
+ *
+ * Since the verifier ensures that eBPF packet accesses follow these rules,
+ * we can tell LLVM to emit code as if we always had a larger alignment.
+ * It will yell at us if we end up on a platform where this is not valid.
+ */
+typedef uint8_t *net_ptr __attribute__((align_value(8)));
+
+typedef struct buf {
+	struct __sk_buff *skb;
+	net_ptr head;
+	/* NB: tail mustn't have alignment other than 1, otherwise
+	* LLVM will go and eliminate code, e.g. when checking packet lengths.
+	*/
+	uint8_t *const tail;
+} buf_t;
+
+static __always_inline size_t buf_off(const buf_t *buf)
+{
+	/* Clang seems to optimize constructs like
+	 *    a - b + c
+	 * if c is known:
+	 *    r? = c
+	 *    r? -= b
+	 *    r? += a
+	 *
+	 * This is a problem if a and b are packet pointers,
+	 * since the verifier allows subtracting two pointers to
+	 * get a scalar, but not a scalar and a pointer.
+	 *
+	 * Use inline asm to break this optimization.
+	 */
+	size_t off = (size_t)buf->head;
+	asm("%0 -= %1" : "+r"(off) : "r"(buf->skb->data));
+	return off;
+}
+
+static __always_inline bool buf_copy(buf_t *buf, void *dst, size_t len)
+{
+	if (bpf_skb_load_bytes(buf->skb, buf_off(buf), dst, len)) {
+		return false;
+	}
+
+	buf->head += len;
+	return true;
+}
+
+static __always_inline bool buf_skip(buf_t *buf, const size_t len)
+{
+	/* Check whether off + len is valid in the non-linear part. */
+	if (buf_off(buf) + len > buf->skb->len) {
+		return false;
+	}
+
+	buf->head += len;
+	return true;
+}
+
+/* Returns a pointer to the start of buf, or NULL if len is
+ * larger than the remaining data. Consumes len bytes on a successful
+ * call.
+ *
+ * If scratch is not NULL, the function will attempt to load non-linear
+ * data via bpf_skb_load_bytes. On success, scratch is returned.
+ */
+static __always_inline void *buf_assign(buf_t *buf, const size_t len, void *scratch)
+{
+	if (buf->head + len > buf->tail) {
+		if (scratch == NULL) {
+			return NULL;
+		}
+
+		return buf_copy(buf, scratch, len) ? scratch : NULL;
+	}
+
+	void *ptr = buf->head;
+	buf->head += len;
+	return ptr;
+}
+
+static INLINING bool pkt_skip_ipv4_options(buf_t *buf, const struct iphdr *ipv4)
+{
+	if (ipv4->ihl <= 5) {
+		return true;
+	}
+
+	return buf_skip(buf, (ipv4->ihl - 5) * 4);
+}
+
+static INLINING bool ipv4_is_fragment(const struct iphdr *ip)
+{
+	uint16_t frag_off = ip->frag_off & bpf_htons(IP_OFFSET_MASK);
+	return (ip->frag_off & bpf_htons(IP_MF)) != 0 || frag_off > 0;
+}
+
+static __always_inline struct iphdr *pkt_parse_ipv4(buf_t *pkt, struct iphdr *scratch)
+{
+	struct iphdr *ipv4 = buf_assign(pkt, sizeof(*ipv4), scratch);
+	if (ipv4 == NULL) {
+		return NULL;
+	}
+
+	if (ipv4->ihl < 5) {
+		return NULL;
+	}
+
+	if (!pkt_skip_ipv4_options(pkt, ipv4)) {
+		return NULL;
+	}
+
+	return ipv4;
+}
+
+/* Parse the L4 ports from a packet, assuming a layout like TCP or UDP. */
+static INLINING bool pkt_parse_icmp_l4_ports(buf_t *pkt, flow_ports_t *ports)
+{
+	if (!buf_copy(pkt, ports, sizeof(*ports))) {
+		return false;
+	}
+
+	/* Ports in the L4 headers are reversed, since we are parsing an ICMP
+	 * payload which is going towards the eyeball.
+	 */
+	uint16_t dst = ports->src;
+	ports->src = ports->dst;
+	ports->dst = dst;
+	return true;
+}
+
+static INLINING uint16_t pkt_checksum_fold(uint32_t csum)
+{
+	/* The highest reasonable value for an IPv4 header
+	 * checksum requires two folds, so we just do that always.
+	 */
+	csum = (csum & 0xffff) + (csum >> 16);
+	csum = (csum & 0xffff) + (csum >> 16);
+	return (uint16_t)~csum;
+}
+
+static INLINING void pkt_ipv4_checksum(struct iphdr *iph)
+{
+	iph->check = 0;
+
+	/* An IP header without options is 20 bytes. Two of those
+	 * are the checksum, which we always set to zero. Hence,
+	 * the maximum accumulated value is 18 / 2 * 0xffff = 0x8fff7,
+	 * which fits in 32 bit.
+	 */
+	_Static_assert(sizeof(struct iphdr) == 20, "iphdr must be 20 bytes");
+	uint32_t acc = 0;
+	uint16_t *ipw = (uint16_t *)iph;
+
+	__pragma_loop_unroll_full
+	for (size_t i = 0; i < sizeof(struct iphdr) / 2; i++) {
+		acc += ipw[i];
+	}
+
+	iph->check = pkt_checksum_fold(acc);
+}
+
+static INLINING
+bool pkt_skip_ipv6_extension_headers(buf_t *pkt,
+				     const struct ipv6hdr *ipv6,
+				     uint8_t *upper_proto,
+				     bool *is_fragment)
+{
+	/* We understand five extension headers.
+	 * https://tools.ietf.org/html/rfc8200#section-4.1 states that all
+	 * headers should occur once, except Destination Options, which may
+	 * occur twice. Hence we give up after 6 headers.
+	 */
+	struct {
+		uint8_t next;
+		uint8_t len;
+	} exthdr = {
+		.next = ipv6->nexthdr,
+	};
+	*is_fragment = false;
+
+	__pragma_loop_unroll_full
+	for (int i = 0; i < 6; i++) {
+		switch (exthdr.next) {
+		case IPPROTO_FRAGMENT:
+			*is_fragment = true;
+			/* NB: We don't check that hdrlen == 0 as per spec. */
+			/* fallthrough; */
+
+		case IPPROTO_HOPOPTS:
+		case IPPROTO_ROUTING:
+		case IPPROTO_DSTOPTS:
+		case IPPROTO_MH:
+			if (!buf_copy(pkt, &exthdr, sizeof(exthdr))) {
+				return false;
+			}
+
+			/* hdrlen is in 8-octet units, and excludes the first 8 octets. */
+			if (!buf_skip(pkt,
+				      (exthdr.len + 1) * 8 - sizeof(exthdr))) {
+				return false;
+			}
+
+			/* Decode next header */
+			break;
+
+		default:
+			/* The next header is not one of the known extension
+			 * headers, treat it as the upper layer header.
+			 *
+			 * This handles IPPROTO_NONE.
+			 *
+			 * Encapsulating Security Payload (50) and Authentication
+			 * Header (51) also end up here (and will trigger an
+			 * unknown proto error later). They have a custom header
+			 * format and seem too esoteric to care about.
+			 */
+			*upper_proto = exthdr.next;
+			return true;
+		}
+	}
+
+	/* We never found an upper layer header. */
+	return false;
+}
+
+/* This function has to be inlined, because the verifier otherwise rejects it
+ * due to returning a pointer to the stack. This is technically correct, since
+ * scratch is allocated on the stack. However, this usage should be safe since
+ * it's the callers stack after all.
+ */
+static __always_inline struct ipv6hdr *
+pkt_parse_ipv6(buf_t *pkt, struct ipv6hdr *scratch, uint8_t *proto,
+	       bool *is_fragment)
+{
+	struct ipv6hdr *ipv6 = buf_assign(pkt, sizeof(*ipv6), scratch);
+	if (ipv6 == NULL) {
+		return NULL;
+	}
+
+	if (!pkt_skip_ipv6_extension_headers(pkt, ipv6, proto, is_fragment)) {
+		return NULL;
+	}
+
+	return ipv6;
+}
+
+/* Global metrics, per CPU
+ */
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, unsigned int);
+	__type(value, metrics_t);
+} metrics_map SEC(".maps");
+
+static INLINING metrics_t *get_global_metrics(void)
+{
+	uint64_t key = 0;
+	return bpf_map_lookup_elem(&metrics_map, &key);
+}
+
+static INLINING ret_t accept_locally(struct __sk_buff *skb, encap_headers_t *encap)
+{
+	const int payload_off =
+		sizeof(*encap) +
+		sizeof(struct in_addr) * encap->unigue.hop_count;
+	int32_t encap_overhead = payload_off - sizeof(struct ethhdr);
+
+	// Changing the ethertype if the encapsulated packet is ipv6
+	if (encap->gue.proto_ctype == IPPROTO_IPV6) {
+		encap->eth.h_proto = bpf_htons(ETH_P_IPV6);
+	}
+
+	if (bpf_skb_adjust_room(skb, -encap_overhead, BPF_ADJ_ROOM_MAC,
+				BPF_F_ADJ_ROOM_FIXED_GSO |
+				BPF_F_ADJ_ROOM_NO_CSUM_RESET) ||
+	    bpf_csum_level(skb, BPF_CSUM_LEVEL_DEC))
+		return TC_ACT_SHOT;
+
+	return bpf_redirect(skb->ifindex, BPF_F_INGRESS);
+}
+
+static INLINING ret_t forward_with_gre(struct __sk_buff *skb, encap_headers_t *encap,
+				       struct in_addr *next_hop, metrics_t *metrics)
+{
+	metrics->forwarded_packets_total_gre++;
+
+	const int payload_off =
+		sizeof(*encap) +
+		sizeof(struct in_addr) * encap->unigue.hop_count;
+	int32_t encap_overhead =
+		payload_off - sizeof(struct ethhdr) - sizeof(struct iphdr);
+	int32_t delta = sizeof(struct gre_base_hdr) - encap_overhead;
+	uint16_t proto = ETH_P_IP;
+	uint32_t mtu_len = 0;
+
+	/* Loop protection: the inner packet's TTL is decremented as a safeguard
+	 * against any forwarding loop. As the only interesting field is the TTL
+	 * hop limit for IPv6, it is easier to use bpf_skb_load_bytes/bpf_skb_store_bytes
+	 * as they handle the split packets if needed (no need for the data to be
+	 * in the linear section).
+	 */
+	if (encap->gue.proto_ctype == IPPROTO_IPV6) {
+		proto = ETH_P_IPV6;
+		uint8_t ttl;
+		int rc;
+
+		rc = bpf_skb_load_bytes(
+			skb, payload_off + offsetof(struct ipv6hdr, hop_limit),
+			&ttl, 1);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		if (ttl == 0) {
+			metrics->errors_total_redirect_loop++;
+			return TC_ACT_SHOT;
+		}
+
+		ttl--;
+		rc = bpf_skb_store_bytes(
+			skb, payload_off + offsetof(struct ipv6hdr, hop_limit),
+			&ttl, 1, 0);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+	} else {
+		uint8_t ttl;
+		int rc;
+
+		rc = bpf_skb_load_bytes(
+			skb, payload_off + offsetof(struct iphdr, ttl), &ttl,
+			1);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		if (ttl == 0) {
+			metrics->errors_total_redirect_loop++;
+			return TC_ACT_SHOT;
+		}
+
+		/* IPv4 also has a checksum to patch. While the TTL is only one byte,
+		 * this function only works for 2 and 4 bytes arguments (the result is
+		 * the same).
+		 */
+		rc = bpf_l3_csum_replace(
+			skb, payload_off + offsetof(struct iphdr, check), ttl,
+			ttl - 1, 2);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		ttl--;
+		rc = bpf_skb_store_bytes(
+			skb, payload_off + offsetof(struct iphdr, ttl), &ttl, 1,
+			0);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+	}
+
+	if (bpf_check_mtu(skb, skb->ifindex, &mtu_len, delta, 0)) {
+		metrics->errors_total_encap_mtu_violate++;
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_skb_adjust_room(skb, delta, BPF_ADJ_ROOM_NET,
+				BPF_F_ADJ_ROOM_FIXED_GSO |
+				BPF_F_ADJ_ROOM_NO_CSUM_RESET) ||
+	    bpf_csum_level(skb, BPF_CSUM_LEVEL_INC)) {
+		metrics->errors_total_encap_adjust_failed++;
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_skb_pull_data(skb, sizeof(encap_gre_t))) {
+		metrics->errors_total_encap_buffer_too_small++;
+		return TC_ACT_SHOT;
+	}
+
+	buf_t pkt = {
+		.skb = skb,
+		.head = (uint8_t *)(long)skb->data,
+		.tail = (uint8_t *)(long)skb->data_end,
+	};
+
+	encap_gre_t *encap_gre = buf_assign(&pkt, sizeof(encap_gre_t), NULL);
+	if (encap_gre == NULL) {
+		metrics->errors_total_encap_buffer_too_small++;
+		return TC_ACT_SHOT;
+	}
+
+	encap_gre->ip.protocol = IPPROTO_GRE;
+	encap_gre->ip.daddr = next_hop->s_addr;
+	encap_gre->ip.saddr = ENCAPSULATION_IP;
+	encap_gre->ip.tot_len =
+		bpf_htons(bpf_ntohs(encap_gre->ip.tot_len) + delta);
+	encap_gre->gre.flags = 0;
+	encap_gre->gre.protocol = bpf_htons(proto);
+	pkt_ipv4_checksum((void *)&encap_gre->ip);
+
+	return bpf_redirect(skb->ifindex, 0);
+}
+
+static INLINING ret_t forward_to_next_hop(struct __sk_buff *skb, encap_headers_t *encap,
+					  struct in_addr *next_hop, metrics_t *metrics)
+{
+	/* swap L2 addresses */
+	/* This assumes that packets are received from a router.
+	 * So just swapping the MAC addresses here will make the packet go back to
+	 * the router, which will send it to the appropriate machine.
+	 */
+	unsigned char temp[ETH_ALEN];
+	memcpy(temp, encap->eth.h_dest, sizeof(temp));
+	memcpy(encap->eth.h_dest, encap->eth.h_source,
+	       sizeof(encap->eth.h_dest));
+	memcpy(encap->eth.h_source, temp, sizeof(encap->eth.h_source));
+
+	if (encap->unigue.next_hop == encap->unigue.hop_count - 1 &&
+	    encap->unigue.last_hop_gre) {
+		return forward_with_gre(skb, encap, next_hop, metrics);
+	}
+
+	metrics->forwarded_packets_total_gue++;
+	uint32_t old_saddr = encap->ip.saddr;
+	encap->ip.saddr = encap->ip.daddr;
+	encap->ip.daddr = next_hop->s_addr;
+	if (encap->unigue.next_hop < encap->unigue.hop_count) {
+		encap->unigue.next_hop++;
+	}
+
+	/* Remove ip->saddr, add next_hop->s_addr */
+	const uint64_t off = offsetof(typeof(*encap), ip.check);
+	int ret = bpf_l3_csum_replace(skb, off, old_saddr, next_hop->s_addr, 4);
+	if (ret < 0) {
+		return TC_ACT_SHOT;
+	}
+
+	return bpf_redirect(skb->ifindex, 0);
+}
+
+static INLINING ret_t skip_next_hops(buf_t *pkt, int n)
+{
+	switch (n) {
+	case 1:
+		if (!buf_skip(pkt, sizeof(struct in_addr)))
+			return TC_ACT_SHOT;
+	case 0:
+		return CONTINUE_PROCESSING;
+
+	default:
+		return TC_ACT_SHOT;
+	}
+}
+
+/* Get the next hop from the GLB header.
+ *
+ * Sets next_hop->s_addr to 0 if there are no more hops left.
+ * pkt is positioned just after the variable length GLB header
+ * iff the call is successful.
+ */
+static INLINING ret_t get_next_hop(buf_t *pkt, encap_headers_t *encap,
+				   struct in_addr *next_hop)
+{
+	if (encap->unigue.next_hop > encap->unigue.hop_count) {
+		return TC_ACT_SHOT;
+	}
+
+	/* Skip "used" next hops. */
+	MAYBE_RETURN(skip_next_hops(pkt, encap->unigue.next_hop));
+
+	if (encap->unigue.next_hop == encap->unigue.hop_count) {
+		/* No more next hops, we are at the end of the GLB header. */
+		next_hop->s_addr = 0;
+		return CONTINUE_PROCESSING;
+	}
+
+	if (!buf_copy(pkt, next_hop, sizeof(*next_hop))) {
+		return TC_ACT_SHOT;
+	}
+
+	/* Skip the remaining next hops (may be zero). */
+	return skip_next_hops(pkt, encap->unigue.hop_count -
+					   encap->unigue.next_hop - 1);
+}
+
+/* Fill a bpf_sock_tuple to be used with the socket lookup functions.
+ * This is a kludge that let's us work around verifier limitations:
+ *
+ *    fill_tuple(&t, foo, sizeof(struct iphdr), 123, 321)
+ *
+ * clang will substitute a constant for sizeof, which allows the verifier
+ * to track its value. Based on this, it can figure out the constant
+ * return value, and calling code works while still being "generic" to
+ * IPv4 and IPv6.
+ */
+static INLINING uint64_t fill_tuple(struct bpf_sock_tuple *tuple, void *iph,
+				    uint64_t iphlen, uint16_t sport, uint16_t dport)
+{
+	switch (iphlen) {
+	case sizeof(struct iphdr): {
+		struct iphdr *ipv4 = (struct iphdr *)iph;
+		tuple->ipv4.daddr = ipv4->daddr;
+		tuple->ipv4.saddr = ipv4->saddr;
+		tuple->ipv4.sport = sport;
+		tuple->ipv4.dport = dport;
+		return sizeof(tuple->ipv4);
+	}
+
+	case sizeof(struct ipv6hdr): {
+		struct ipv6hdr *ipv6 = (struct ipv6hdr *)iph;
+		memcpy(&tuple->ipv6.daddr, &ipv6->daddr,
+		       sizeof(tuple->ipv6.daddr));
+		memcpy(&tuple->ipv6.saddr, &ipv6->saddr,
+		       sizeof(tuple->ipv6.saddr));
+		tuple->ipv6.sport = sport;
+		tuple->ipv6.dport = dport;
+		return sizeof(tuple->ipv6);
+	}
+
+	default:
+		return 0;
+	}
+}
+
+static INLINING verdict_t classify_tcp(struct __sk_buff *skb,
+				       struct bpf_sock_tuple *tuple, uint64_t tuplen,
+				       void *iph, struct tcphdr *tcp)
+{
+	struct bpf_sock *sk =
+		bpf_skc_lookup_tcp(skb, tuple, tuplen, BPF_F_CURRENT_NETNS, 0);
+	if (sk == NULL) {
+		return UNKNOWN;
+	}
+
+	if (sk->state != BPF_TCP_LISTEN) {
+		bpf_sk_release(sk);
+		return ESTABLISHED;
+	}
+
+	if (iph != NULL && tcp != NULL) {
+		/* Kludge: we've run out of arguments, but need the length of the ip header. */
+		uint64_t iphlen = sizeof(struct iphdr);
+		if (tuplen == sizeof(tuple->ipv6)) {
+			iphlen = sizeof(struct ipv6hdr);
+		}
+
+		if (bpf_tcp_check_syncookie(sk, iph, iphlen, tcp,
+					    sizeof(*tcp)) == 0) {
+			bpf_sk_release(sk);
+			return SYN_COOKIE;
+		}
+	}
+
+	bpf_sk_release(sk);
+	return UNKNOWN;
+}
+
+static INLINING verdict_t classify_udp(struct __sk_buff *skb,
+				       struct bpf_sock_tuple *tuple, uint64_t tuplen)
+{
+	struct bpf_sock *sk =
+		bpf_sk_lookup_udp(skb, tuple, tuplen, BPF_F_CURRENT_NETNS, 0);
+	if (sk == NULL) {
+		return UNKNOWN;
+	}
+
+	if (sk->state == BPF_TCP_ESTABLISHED) {
+		bpf_sk_release(sk);
+		return ESTABLISHED;
+	}
+
+	bpf_sk_release(sk);
+	return UNKNOWN;
+}
+
+static INLINING verdict_t classify_icmp(struct __sk_buff *skb, uint8_t proto,
+					struct bpf_sock_tuple *tuple, uint64_t tuplen,
+					metrics_t *metrics)
+{
+	switch (proto) {
+	case IPPROTO_TCP:
+		return classify_tcp(skb, tuple, tuplen, NULL, NULL);
+
+	case IPPROTO_UDP:
+		return classify_udp(skb, tuple, tuplen);
+
+	default:
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+}
+
+static INLINING verdict_t process_icmpv4(buf_t *pkt, metrics_t *metrics)
+{
+	struct icmphdr icmp;
+	if (!buf_copy(pkt, &icmp, sizeof(icmp))) {
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+
+	/* We should never receive encapsulated echo replies. */
+	if (icmp.type == ICMP_ECHOREPLY) {
+		metrics->errors_total_icmp_echo_replies++;
+		return INVALID;
+	}
+
+	if (icmp.type == ICMP_ECHO) {
+		return ECHO_REQUEST;
+	}
+
+	if (icmp.type != ICMP_DEST_UNREACH || icmp.code != ICMP_FRAG_NEEDED) {
+		metrics->errors_total_unwanted_icmp++;
+		return INVALID;
+	}
+
+	struct iphdr _ip4;
+	const struct iphdr *ipv4 = pkt_parse_ipv4(pkt, &_ip4);
+	if (ipv4 == NULL) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	/* The source address in the outer IP header is from the entity that
+	 * originated the ICMP message. Use the original IP header to restore
+	 * the correct flow tuple.
+	 */
+	struct bpf_sock_tuple tuple;
+	tuple.ipv4.saddr = ipv4->daddr;
+	tuple.ipv4.daddr = ipv4->saddr;
+
+	if (!pkt_parse_icmp_l4_ports(pkt, (flow_ports_t *)&tuple.ipv4.sport)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	return classify_icmp(pkt->skb, ipv4->protocol, &tuple,
+			     sizeof(tuple.ipv4), metrics);
+}
+
+static INLINING verdict_t process_icmpv6(buf_t *pkt, metrics_t *metrics)
+{
+	struct icmp6hdr icmp6;
+	if (!buf_copy(pkt, &icmp6, sizeof(icmp6))) {
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+
+	/* We should never receive encapsulated echo replies. */
+	if (icmp6.icmp6_type == ICMPV6_ECHO_REPLY) {
+		metrics->errors_total_icmp_echo_replies++;
+		return INVALID;
+	}
+
+	if (icmp6.icmp6_type == ICMPV6_ECHO_REQUEST) {
+		return ECHO_REQUEST;
+	}
+
+	if (icmp6.icmp6_type != ICMPV6_PKT_TOOBIG) {
+		metrics->errors_total_unwanted_icmp++;
+		return INVALID;
+	}
+
+	bool is_fragment;
+	uint8_t l4_proto;
+	struct ipv6hdr _ipv6;
+	const struct ipv6hdr *ipv6 =
+		pkt_parse_ipv6(pkt, &_ipv6, &l4_proto, &is_fragment);
+	if (ipv6 == NULL) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	if (is_fragment) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	/* Swap source and dest addresses. */
+	struct bpf_sock_tuple tuple;
+	memcpy(&tuple.ipv6.saddr, &ipv6->daddr, sizeof(tuple.ipv6.saddr));
+	memcpy(&tuple.ipv6.daddr, &ipv6->saddr, sizeof(tuple.ipv6.daddr));
+
+	if (!pkt_parse_icmp_l4_ports(pkt, (flow_ports_t *)&tuple.ipv6.sport)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	return classify_icmp(pkt->skb, l4_proto, &tuple, sizeof(tuple.ipv6),
+			     metrics);
+}
+
+static INLINING verdict_t process_tcp(buf_t *pkt, void *iph, uint64_t iphlen,
+				      metrics_t *metrics)
+{
+	metrics->l4_protocol_packets_total_tcp++;
+
+	struct tcphdr _tcp;
+	struct tcphdr *tcp = buf_assign(pkt, sizeof(_tcp), &_tcp);
+	if (tcp == NULL) {
+		metrics->errors_total_malformed_tcp++;
+		return INVALID;
+	}
+
+	if (tcp->syn) {
+		return SYN;
+	}
+
+	struct bpf_sock_tuple tuple;
+	uint64_t tuplen =
+		fill_tuple(&tuple, iph, iphlen, tcp->source, tcp->dest);
+	return classify_tcp(pkt->skb, &tuple, tuplen, iph, tcp);
+}
+
+static INLINING verdict_t process_udp(buf_t *pkt, void *iph, uint64_t iphlen,
+				      metrics_t *metrics)
+{
+	metrics->l4_protocol_packets_total_udp++;
+
+	struct udphdr _udp;
+	struct udphdr *udph = buf_assign(pkt, sizeof(_udp), &_udp);
+	if (udph == NULL) {
+		metrics->errors_total_malformed_udp++;
+		return INVALID;
+	}
+
+	struct bpf_sock_tuple tuple;
+	uint64_t tuplen =
+		fill_tuple(&tuple, iph, iphlen, udph->source, udph->dest);
+	return classify_udp(pkt->skb, &tuple, tuplen);
+}
+
+static INLINING verdict_t process_ipv4(buf_t *pkt, metrics_t *metrics)
+{
+	metrics->l3_protocol_packets_total_ipv4++;
+
+	struct iphdr _ip4;
+	struct iphdr *ipv4 = pkt_parse_ipv4(pkt, &_ip4);
+	if (ipv4 == NULL) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv4->version != 4) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv4_is_fragment(ipv4)) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	switch (ipv4->protocol) {
+	case IPPROTO_ICMP:
+		return process_icmpv4(pkt, metrics);
+
+	case IPPROTO_TCP:
+		return process_tcp(pkt, ipv4, sizeof(*ipv4), metrics);
+
+	case IPPROTO_UDP:
+		return process_udp(pkt, ipv4, sizeof(*ipv4), metrics);
+
+	default:
+		metrics->errors_total_unknown_l4_proto++;
+		return INVALID;
+	}
+}
+
+static INLINING verdict_t process_ipv6(buf_t *pkt, metrics_t *metrics)
+{
+	metrics->l3_protocol_packets_total_ipv6++;
+
+	uint8_t l4_proto;
+	bool is_fragment;
+	struct ipv6hdr _ipv6;
+	struct ipv6hdr *ipv6 =
+		pkt_parse_ipv6(pkt, &_ipv6, &l4_proto, &is_fragment);
+	if (ipv6 == NULL) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv6->version != 6) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (is_fragment) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	switch (l4_proto) {
+	case IPPROTO_ICMPV6:
+		return process_icmpv6(pkt, metrics);
+
+	case IPPROTO_TCP:
+		return process_tcp(pkt, ipv6, sizeof(*ipv6), metrics);
+
+	case IPPROTO_UDP:
+		return process_udp(pkt, ipv6, sizeof(*ipv6), metrics);
+
+	default:
+		metrics->errors_total_unknown_l4_proto++;
+		return INVALID;
+	}
+}
+
+SEC("tc")
+int cls_redirect(struct __sk_buff *skb)
+{
+	metrics_t *metrics = get_global_metrics();
+	if (metrics == NULL) {
+		return TC_ACT_SHOT;
+	}
+
+	metrics->processed_packets_total++;
+
+	/* Pass bogus packets as long as we're not sure they're
+	 * destined for us.
+	 */
+	if (skb->protocol != bpf_htons(ETH_P_IP)) {
+		return TC_ACT_OK;
+	}
+
+	encap_headers_t *encap;
+
+	/* Make sure that all encapsulation headers are available in
+	 * the linear portion of the skb. This makes it easy to manipulate them.
+	 */
+	if (bpf_skb_pull_data(skb, sizeof(*encap))) {
+		return TC_ACT_OK;
+	}
+
+	buf_t pkt = {
+		.skb = skb,
+		.head = (uint8_t *)(long)skb->data,
+		.tail = (uint8_t *)(long)skb->data_end,
+	};
+
+	encap = buf_assign(&pkt, sizeof(*encap), NULL);
+	if (encap == NULL) {
+		return TC_ACT_OK;
+	}
+
+	if (encap->ip.ihl != 5) {
+		/* We never have any options. */
+		return TC_ACT_OK;
+	}
+
+	if (encap->ip.daddr != ENCAPSULATION_IP ||
+	    encap->ip.protocol != IPPROTO_UDP) {
+		return TC_ACT_OK;
+	}
+
+	/* TODO Check UDP length? */
+	if (encap->udp.dest != ENCAPSULATION_PORT) {
+		return TC_ACT_OK;
+	}
+
+	/* We now know that the packet is destined to us, we can
+	 * drop bogus ones.
+	 */
+	if (ipv4_is_fragment((void *)&encap->ip)) {
+		metrics->errors_total_fragmented_ip++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.variant != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.control != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.flags != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.hlen !=
+	    sizeof(encap->unigue) / 4 + encap->unigue.hop_count) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->unigue.version != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->unigue.reserved != 0) {
+		return TC_ACT_SHOT;
+	}
+
+	struct in_addr next_hop;
+	MAYBE_RETURN(get_next_hop(&pkt, encap, &next_hop));
+
+	if (next_hop.s_addr == 0) {
+		metrics->accepted_packets_total_last_hop++;
+		return accept_locally(skb, encap);
+	}
+
+	verdict_t verdict;
+	switch (encap->gue.proto_ctype) {
+	case IPPROTO_IPIP:
+		verdict = process_ipv4(&pkt, metrics);
+		break;
+
+	case IPPROTO_IPV6:
+		verdict = process_ipv6(&pkt, metrics);
+		break;
+
+	default:
+		metrics->errors_total_unknown_l3_proto++;
+		return TC_ACT_SHOT;
+	}
+
+	switch (verdict) {
+	case INVALID:
+		/* metrics have already been bumped */
+		return TC_ACT_SHOT;
+
+	case UNKNOWN:
+		return forward_to_next_hop(skb, encap, &next_hop, metrics);
+
+	case ECHO_REQUEST:
+		metrics->accepted_packets_total_icmp_echo_request++;
+		break;
+
+	case SYN:
+		if (encap->unigue.forward_syn) {
+			return forward_to_next_hop(skb, encap, &next_hop,
+						   metrics);
+		}
+
+		metrics->accepted_packets_total_syn++;
+		break;
+
+	case SYN_COOKIE:
+		metrics->accepted_packets_total_syn_cookies++;
+		break;
+
+	case ESTABLISHED:
+		metrics->accepted_packets_total_established++;
+		break;
+	}
+
+	return accept_locally(skb, encap);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect.h b/tools/testing/selftests/bpf/progs/test_cls_redirect.h
new file mode 100644
index 000000000000..eb55cb8a3dbd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cls_redirect.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/* Copyright 2019, 2020 Cloudflare */
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <netinet/udp.h>
+
+/* offsetof() is used in static asserts, and the libbpf-redefined CO-RE
+ * friendly version breaks compilation for older clang versions <= 15
+ * when invoked in a static assert.  Restore original here.
+ */
+#ifdef offsetof
+#undef offsetof
+#define offsetof(type, member) __builtin_offsetof(type, member)
+#endif
+
+struct gre_base_hdr {
+	uint16_t flags;
+	uint16_t protocol;
+} __attribute__((packed));
+
+struct guehdr {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	uint8_t hlen : 5, control : 1, variant : 2;
+#else
+	uint8_t variant : 2, control : 1, hlen : 5;
+#endif
+	uint8_t proto_ctype;
+	uint16_t flags;
+};
+
+struct unigue {
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	uint8_t _r : 2, last_hop_gre : 1, forward_syn : 1, version : 4;
+#else
+	uint8_t version : 4, forward_syn : 1, last_hop_gre : 1, _r : 2;
+#endif
+	uint8_t reserved;
+	uint8_t next_hop;
+	uint8_t hop_count;
+	// Next hops go here
+} __attribute__((packed));
+
+typedef struct {
+	struct ethhdr eth;
+	struct iphdr ip;
+	struct gre_base_hdr gre;
+} __attribute__((packed)) encap_gre_t;
+
+typedef struct {
+	struct ethhdr eth;
+	struct iphdr ip;
+	struct udphdr udp;
+	struct guehdr gue;
+	struct unigue unigue;
+} __attribute__((packed)) encap_headers_t;
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect_dynptr.c b/tools/testing/selftests/bpf/progs/test_cls_redirect_dynptr.c
new file mode 100644
index 000000000000..dfd4a2710391
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cls_redirect_dynptr.c
@@ -0,0 +1,981 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2019, 2020 Cloudflare
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/bpf.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/pkt_cls.h>
+#include <linux/tcp.h>
+#include <netinet/udp.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "test_cls_redirect.h"
+#include "bpf_kfuncs.h"
+
+#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+
+#define offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER) + sizeof((((TYPE *)0)->MEMBER)))
+
+#define IP_OFFSET_MASK (0x1FFF)
+#define IP_MF (0x2000)
+
+char _license[] SEC("license") = "Dual BSD/GPL";
+
+/**
+ * Destination port and IP used for UDP encapsulation.
+ */
+volatile const __be16 ENCAPSULATION_PORT;
+volatile const __be32 ENCAPSULATION_IP;
+
+typedef struct {
+	uint64_t processed_packets_total;
+	uint64_t l3_protocol_packets_total_ipv4;
+	uint64_t l3_protocol_packets_total_ipv6;
+	uint64_t l4_protocol_packets_total_tcp;
+	uint64_t l4_protocol_packets_total_udp;
+	uint64_t accepted_packets_total_syn;
+	uint64_t accepted_packets_total_syn_cookies;
+	uint64_t accepted_packets_total_last_hop;
+	uint64_t accepted_packets_total_icmp_echo_request;
+	uint64_t accepted_packets_total_established;
+	uint64_t forwarded_packets_total_gue;
+	uint64_t forwarded_packets_total_gre;
+
+	uint64_t errors_total_unknown_l3_proto;
+	uint64_t errors_total_unknown_l4_proto;
+	uint64_t errors_total_malformed_ip;
+	uint64_t errors_total_fragmented_ip;
+	uint64_t errors_total_malformed_icmp;
+	uint64_t errors_total_unwanted_icmp;
+	uint64_t errors_total_malformed_icmp_pkt_too_big;
+	uint64_t errors_total_malformed_tcp;
+	uint64_t errors_total_malformed_udp;
+	uint64_t errors_total_icmp_echo_replies;
+	uint64_t errors_total_malformed_encapsulation;
+	uint64_t errors_total_encap_adjust_failed;
+	uint64_t errors_total_encap_buffer_too_small;
+	uint64_t errors_total_redirect_loop;
+	uint64_t errors_total_encap_mtu_violate;
+} metrics_t;
+
+typedef enum {
+	INVALID = 0,
+	UNKNOWN,
+	ECHO_REQUEST,
+	SYN,
+	SYN_COOKIE,
+	ESTABLISHED,
+} verdict_t;
+
+typedef struct {
+	uint16_t src, dst;
+} flow_ports_t;
+
+_Static_assert(
+	sizeof(flow_ports_t) !=
+		offsetofend(struct bpf_sock_tuple, ipv4.dport) -
+			offsetof(struct bpf_sock_tuple, ipv4.sport) - 1,
+	"flow_ports_t must match sport and dport in struct bpf_sock_tuple");
+_Static_assert(
+	sizeof(flow_ports_t) !=
+		offsetofend(struct bpf_sock_tuple, ipv6.dport) -
+			offsetof(struct bpf_sock_tuple, ipv6.sport) - 1,
+	"flow_ports_t must match sport and dport in struct bpf_sock_tuple");
+
+struct iphdr_info {
+	void *hdr;
+	__u64 len;
+};
+
+typedef int ret_t;
+
+/* This is a bit of a hack. We need a return value which allows us to
+ * indicate that the regular flow of the program should continue,
+ * while allowing functions to use XDP_PASS and XDP_DROP, etc.
+ */
+static const ret_t CONTINUE_PROCESSING = -1;
+
+/* Convenience macro to call functions which return ret_t.
+ */
+#define MAYBE_RETURN(x)                           \
+	do {                                      \
+		ret_t __ret = x;                  \
+		if (__ret != CONTINUE_PROCESSING) \
+			return __ret;             \
+	} while (0)
+
+static bool ipv4_is_fragment(const struct iphdr *ip)
+{
+	uint16_t frag_off = ip->frag_off & bpf_htons(IP_OFFSET_MASK);
+	return (ip->frag_off & bpf_htons(IP_MF)) != 0 || frag_off > 0;
+}
+
+static int pkt_parse_ipv4(struct bpf_dynptr *dynptr, __u64 *offset, struct iphdr *iphdr)
+{
+	if (bpf_dynptr_read(iphdr, sizeof(*iphdr), dynptr, *offset, 0))
+		return -1;
+
+	*offset += sizeof(*iphdr);
+
+	if (iphdr->ihl < 5)
+		return -1;
+
+	/* skip ipv4 options */
+	*offset += (iphdr->ihl - 5) * 4;
+
+	return 0;
+}
+
+/* Parse the L4 ports from a packet, assuming a layout like TCP or UDP. */
+static bool pkt_parse_icmp_l4_ports(struct bpf_dynptr *dynptr, __u64 *offset, flow_ports_t *ports)
+{
+	if (bpf_dynptr_read(ports, sizeof(*ports), dynptr, *offset, 0))
+		return false;
+
+	*offset += sizeof(*ports);
+
+	/* Ports in the L4 headers are reversed, since we are parsing an ICMP
+	 * payload which is going towards the eyeball.
+	 */
+	uint16_t dst = ports->src;
+	ports->src = ports->dst;
+	ports->dst = dst;
+	return true;
+}
+
+static uint16_t pkt_checksum_fold(uint32_t csum)
+{
+	/* The highest reasonable value for an IPv4 header
+	 * checksum requires two folds, so we just do that always.
+	 */
+	csum = (csum & 0xffff) + (csum >> 16);
+	csum = (csum & 0xffff) + (csum >> 16);
+	return (uint16_t)~csum;
+}
+
+static void pkt_ipv4_checksum(struct iphdr *iph)
+{
+	iph->check = 0;
+
+	/* An IP header without options is 20 bytes. Two of those
+	 * are the checksum, which we always set to zero. Hence,
+	 * the maximum accumulated value is 18 / 2 * 0xffff = 0x8fff7,
+	 * which fits in 32 bit.
+	 */
+	_Static_assert(sizeof(struct iphdr) == 20, "iphdr must be 20 bytes");
+	uint32_t acc = 0;
+	uint16_t *ipw = (uint16_t *)iph;
+
+	for (size_t i = 0; i < sizeof(struct iphdr) / 2; i++)
+		acc += ipw[i];
+
+	iph->check = pkt_checksum_fold(acc);
+}
+
+static bool pkt_skip_ipv6_extension_headers(struct bpf_dynptr *dynptr, __u64 *offset,
+					    const struct ipv6hdr *ipv6, uint8_t *upper_proto,
+					    bool *is_fragment)
+{
+	/* We understand five extension headers.
+	 * https://tools.ietf.org/html/rfc8200#section-4.1 states that all
+	 * headers should occur once, except Destination Options, which may
+	 * occur twice. Hence we give up after 6 headers.
+	 */
+	struct {
+		uint8_t next;
+		uint8_t len;
+	} exthdr = {
+		.next = ipv6->nexthdr,
+	};
+	*is_fragment = false;
+
+	for (int i = 0; i < 6; i++) {
+		switch (exthdr.next) {
+		case IPPROTO_FRAGMENT:
+			*is_fragment = true;
+			/* NB: We don't check that hdrlen == 0 as per spec. */
+			/* fallthrough; */
+
+		case IPPROTO_HOPOPTS:
+		case IPPROTO_ROUTING:
+		case IPPROTO_DSTOPTS:
+		case IPPROTO_MH:
+			if (bpf_dynptr_read(&exthdr, sizeof(exthdr), dynptr, *offset, 0))
+				return false;
+
+			/* hdrlen is in 8-octet units, and excludes the first 8 octets. */
+			*offset += (exthdr.len + 1) * 8;
+
+			/* Decode next header */
+			break;
+
+		default:
+			/* The next header is not one of the known extension
+			 * headers, treat it as the upper layer header.
+			 *
+			 * This handles IPPROTO_NONE.
+			 *
+			 * Encapsulating Security Payload (50) and Authentication
+			 * Header (51) also end up here (and will trigger an
+			 * unknown proto error later). They have a custom header
+			 * format and seem too esoteric to care about.
+			 */
+			*upper_proto = exthdr.next;
+			return true;
+		}
+	}
+
+	/* We never found an upper layer header. */
+	return false;
+}
+
+static int pkt_parse_ipv6(struct bpf_dynptr *dynptr, __u64 *offset, struct ipv6hdr *ipv6,
+			  uint8_t *proto, bool *is_fragment)
+{
+	if (bpf_dynptr_read(ipv6, sizeof(*ipv6), dynptr, *offset, 0))
+		return -1;
+
+	*offset += sizeof(*ipv6);
+
+	if (!pkt_skip_ipv6_extension_headers(dynptr, offset, ipv6, proto, is_fragment))
+		return -1;
+
+	return 0;
+}
+
+/* Global metrics, per CPU
+ */
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, unsigned int);
+	__type(value, metrics_t);
+} metrics_map SEC(".maps");
+
+static metrics_t *get_global_metrics(void)
+{
+	uint64_t key = 0;
+	return bpf_map_lookup_elem(&metrics_map, &key);
+}
+
+static ret_t accept_locally(struct __sk_buff *skb, encap_headers_t *encap)
+{
+	const int payload_off =
+		sizeof(*encap) +
+		sizeof(struct in_addr) * encap->unigue.hop_count;
+	int32_t encap_overhead = payload_off - sizeof(struct ethhdr);
+
+	/* Changing the ethertype if the encapsulated packet is ipv6 */
+	if (encap->gue.proto_ctype == IPPROTO_IPV6)
+		encap->eth.h_proto = bpf_htons(ETH_P_IPV6);
+
+	if (bpf_skb_adjust_room(skb, -encap_overhead, BPF_ADJ_ROOM_MAC,
+				BPF_F_ADJ_ROOM_FIXED_GSO |
+				BPF_F_ADJ_ROOM_NO_CSUM_RESET) ||
+	    bpf_csum_level(skb, BPF_CSUM_LEVEL_DEC))
+		return TC_ACT_SHOT;
+
+	return bpf_redirect(skb->ifindex, BPF_F_INGRESS);
+}
+
+static ret_t forward_with_gre(struct __sk_buff *skb, struct bpf_dynptr *dynptr,
+			      encap_headers_t *encap, struct in_addr *next_hop,
+			      metrics_t *metrics)
+{
+	const int payload_off =
+		sizeof(*encap) +
+		sizeof(struct in_addr) * encap->unigue.hop_count;
+	int32_t encap_overhead =
+		payload_off - sizeof(struct ethhdr) - sizeof(struct iphdr);
+	int32_t delta = sizeof(struct gre_base_hdr) - encap_overhead;
+	__u8 encap_buffer[sizeof(encap_gre_t)] = {};
+	uint16_t proto = ETH_P_IP;
+	uint32_t mtu_len = 0;
+	encap_gre_t *encap_gre;
+
+	metrics->forwarded_packets_total_gre++;
+
+	/* Loop protection: the inner packet's TTL is decremented as a safeguard
+	 * against any forwarding loop. As the only interesting field is the TTL
+	 * hop limit for IPv6, it is easier to use bpf_skb_load_bytes/bpf_skb_store_bytes
+	 * as they handle the split packets if needed (no need for the data to be
+	 * in the linear section).
+	 */
+	if (encap->gue.proto_ctype == IPPROTO_IPV6) {
+		proto = ETH_P_IPV6;
+		uint8_t ttl;
+		int rc;
+
+		rc = bpf_skb_load_bytes(
+			skb, payload_off + offsetof(struct ipv6hdr, hop_limit),
+			&ttl, 1);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		if (ttl == 0) {
+			metrics->errors_total_redirect_loop++;
+			return TC_ACT_SHOT;
+		}
+
+		ttl--;
+		rc = bpf_skb_store_bytes(
+			skb, payload_off + offsetof(struct ipv6hdr, hop_limit),
+			&ttl, 1, 0);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+	} else {
+		uint8_t ttl;
+		int rc;
+
+		rc = bpf_skb_load_bytes(
+			skb, payload_off + offsetof(struct iphdr, ttl), &ttl,
+			1);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		if (ttl == 0) {
+			metrics->errors_total_redirect_loop++;
+			return TC_ACT_SHOT;
+		}
+
+		/* IPv4 also has a checksum to patch. While the TTL is only one byte,
+		 * this function only works for 2 and 4 bytes arguments (the result is
+		 * the same).
+		 */
+		rc = bpf_l3_csum_replace(
+			skb, payload_off + offsetof(struct iphdr, check), ttl,
+			ttl - 1, 2);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+
+		ttl--;
+		rc = bpf_skb_store_bytes(
+			skb, payload_off + offsetof(struct iphdr, ttl), &ttl, 1,
+			0);
+		if (rc != 0) {
+			metrics->errors_total_malformed_encapsulation++;
+			return TC_ACT_SHOT;
+		}
+	}
+
+	if (bpf_check_mtu(skb, skb->ifindex, &mtu_len, delta, 0)) {
+		metrics->errors_total_encap_mtu_violate++;
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_skb_adjust_room(skb, delta, BPF_ADJ_ROOM_NET,
+				BPF_F_ADJ_ROOM_FIXED_GSO |
+				BPF_F_ADJ_ROOM_NO_CSUM_RESET) ||
+	    bpf_csum_level(skb, BPF_CSUM_LEVEL_INC)) {
+		metrics->errors_total_encap_adjust_failed++;
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_skb_pull_data(skb, sizeof(encap_gre_t))) {
+		metrics->errors_total_encap_buffer_too_small++;
+		return TC_ACT_SHOT;
+	}
+
+	encap_gre = bpf_dynptr_slice_rdwr(dynptr, 0, encap_buffer, sizeof(encap_buffer));
+	if (!encap_gre) {
+		metrics->errors_total_encap_buffer_too_small++;
+		return TC_ACT_SHOT;
+	}
+
+	encap_gre->ip.protocol = IPPROTO_GRE;
+	encap_gre->ip.daddr = next_hop->s_addr;
+	encap_gre->ip.saddr = ENCAPSULATION_IP;
+	encap_gre->ip.tot_len =
+		bpf_htons(bpf_ntohs(encap_gre->ip.tot_len) + delta);
+	encap_gre->gre.flags = 0;
+	encap_gre->gre.protocol = bpf_htons(proto);
+	pkt_ipv4_checksum((void *)&encap_gre->ip);
+
+	if (encap_gre == encap_buffer)
+		bpf_dynptr_write(dynptr, 0, encap_buffer, sizeof(encap_buffer), 0);
+
+	return bpf_redirect(skb->ifindex, 0);
+}
+
+static ret_t forward_to_next_hop(struct __sk_buff *skb, struct bpf_dynptr *dynptr,
+				 encap_headers_t *encap, struct in_addr *next_hop,
+				 metrics_t *metrics)
+{
+	/* swap L2 addresses */
+	/* This assumes that packets are received from a router.
+	 * So just swapping the MAC addresses here will make the packet go back to
+	 * the router, which will send it to the appropriate machine.
+	 */
+	unsigned char temp[ETH_ALEN];
+	memcpy(temp, encap->eth.h_dest, sizeof(temp));
+	memcpy(encap->eth.h_dest, encap->eth.h_source,
+	       sizeof(encap->eth.h_dest));
+	memcpy(encap->eth.h_source, temp, sizeof(encap->eth.h_source));
+
+	if (encap->unigue.next_hop == encap->unigue.hop_count - 1 &&
+	    encap->unigue.last_hop_gre) {
+		return forward_with_gre(skb, dynptr, encap, next_hop, metrics);
+	}
+
+	metrics->forwarded_packets_total_gue++;
+	uint32_t old_saddr = encap->ip.saddr;
+	encap->ip.saddr = encap->ip.daddr;
+	encap->ip.daddr = next_hop->s_addr;
+	if (encap->unigue.next_hop < encap->unigue.hop_count) {
+		encap->unigue.next_hop++;
+	}
+
+	/* Remove ip->saddr, add next_hop->s_addr */
+	const uint64_t off = offsetof(typeof(*encap), ip.check);
+	int ret = bpf_l3_csum_replace(skb, off, old_saddr, next_hop->s_addr, 4);
+	if (ret < 0) {
+		return TC_ACT_SHOT;
+	}
+
+	return bpf_redirect(skb->ifindex, 0);
+}
+
+static ret_t skip_next_hops(__u64 *offset, int n)
+{
+	switch (n) {
+	case 1:
+		*offset += sizeof(struct in_addr);
+	case 0:
+		return CONTINUE_PROCESSING;
+
+	default:
+		return TC_ACT_SHOT;
+	}
+}
+
+/* Get the next hop from the GLB header.
+ *
+ * Sets next_hop->s_addr to 0 if there are no more hops left.
+ * pkt is positioned just after the variable length GLB header
+ * iff the call is successful.
+ */
+static ret_t get_next_hop(struct bpf_dynptr *dynptr, __u64 *offset, encap_headers_t *encap,
+			  struct in_addr *next_hop)
+{
+	if (encap->unigue.next_hop > encap->unigue.hop_count)
+		return TC_ACT_SHOT;
+
+	/* Skip "used" next hops. */
+	MAYBE_RETURN(skip_next_hops(offset, encap->unigue.next_hop));
+
+	if (encap->unigue.next_hop == encap->unigue.hop_count) {
+		/* No more next hops, we are at the end of the GLB header. */
+		next_hop->s_addr = 0;
+		return CONTINUE_PROCESSING;
+	}
+
+	if (bpf_dynptr_read(next_hop, sizeof(*next_hop), dynptr, *offset, 0))
+		return TC_ACT_SHOT;
+
+	*offset += sizeof(*next_hop);
+
+	/* Skip the remaining next hops (may be zero). */
+	return skip_next_hops(offset, encap->unigue.hop_count - encap->unigue.next_hop - 1);
+}
+
+/* Fill a bpf_sock_tuple to be used with the socket lookup functions.
+ * This is a kludge that let's us work around verifier limitations:
+ *
+ *    fill_tuple(&t, foo, sizeof(struct iphdr), 123, 321)
+ *
+ * clang will substitute a constant for sizeof, which allows the verifier
+ * to track it's value. Based on this, it can figure out the constant
+ * return value, and calling code works while still being "generic" to
+ * IPv4 and IPv6.
+ */
+static uint64_t fill_tuple(struct bpf_sock_tuple *tuple, void *iph,
+				    uint64_t iphlen, uint16_t sport, uint16_t dport)
+{
+	switch (iphlen) {
+	case sizeof(struct iphdr): {
+		struct iphdr *ipv4 = (struct iphdr *)iph;
+		tuple->ipv4.daddr = ipv4->daddr;
+		tuple->ipv4.saddr = ipv4->saddr;
+		tuple->ipv4.sport = sport;
+		tuple->ipv4.dport = dport;
+		return sizeof(tuple->ipv4);
+	}
+
+	case sizeof(struct ipv6hdr): {
+		struct ipv6hdr *ipv6 = (struct ipv6hdr *)iph;
+		memcpy(&tuple->ipv6.daddr, &ipv6->daddr,
+		       sizeof(tuple->ipv6.daddr));
+		memcpy(&tuple->ipv6.saddr, &ipv6->saddr,
+		       sizeof(tuple->ipv6.saddr));
+		tuple->ipv6.sport = sport;
+		tuple->ipv6.dport = dport;
+		return sizeof(tuple->ipv6);
+	}
+
+	default:
+		return 0;
+	}
+}
+
+static verdict_t classify_tcp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple,
+			      uint64_t tuplen, void *iph, struct tcphdr *tcp)
+{
+	struct bpf_sock *sk =
+		bpf_skc_lookup_tcp(skb, tuple, tuplen, BPF_F_CURRENT_NETNS, 0);
+
+	if (sk == NULL)
+		return UNKNOWN;
+
+	if (sk->state != BPF_TCP_LISTEN) {
+		bpf_sk_release(sk);
+		return ESTABLISHED;
+	}
+
+	if (iph != NULL && tcp != NULL) {
+		/* Kludge: we've run out of arguments, but need the length of the ip header. */
+		uint64_t iphlen = sizeof(struct iphdr);
+
+		if (tuplen == sizeof(tuple->ipv6))
+			iphlen = sizeof(struct ipv6hdr);
+
+		if (bpf_tcp_check_syncookie(sk, iph, iphlen, tcp,
+					    sizeof(*tcp)) == 0) {
+			bpf_sk_release(sk);
+			return SYN_COOKIE;
+		}
+	}
+
+	bpf_sk_release(sk);
+	return UNKNOWN;
+}
+
+static verdict_t classify_udp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, uint64_t tuplen)
+{
+	struct bpf_sock *sk =
+		bpf_sk_lookup_udp(skb, tuple, tuplen, BPF_F_CURRENT_NETNS, 0);
+
+	if (sk == NULL)
+		return UNKNOWN;
+
+	if (sk->state == BPF_TCP_ESTABLISHED) {
+		bpf_sk_release(sk);
+		return ESTABLISHED;
+	}
+
+	bpf_sk_release(sk);
+	return UNKNOWN;
+}
+
+static verdict_t classify_icmp(struct __sk_buff *skb, uint8_t proto, struct bpf_sock_tuple *tuple,
+			       uint64_t tuplen, metrics_t *metrics)
+{
+	switch (proto) {
+	case IPPROTO_TCP:
+		return classify_tcp(skb, tuple, tuplen, NULL, NULL);
+
+	case IPPROTO_UDP:
+		return classify_udp(skb, tuple, tuplen);
+
+	default:
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+}
+
+static verdict_t process_icmpv4(struct __sk_buff *skb, struct bpf_dynptr *dynptr, __u64 *offset,
+				metrics_t *metrics)
+{
+	struct icmphdr icmp;
+	struct iphdr ipv4;
+
+	if (bpf_dynptr_read(&icmp, sizeof(icmp), dynptr, *offset, 0)) {
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+
+	*offset += sizeof(icmp);
+
+	/* We should never receive encapsulated echo replies. */
+	if (icmp.type == ICMP_ECHOREPLY) {
+		metrics->errors_total_icmp_echo_replies++;
+		return INVALID;
+	}
+
+	if (icmp.type == ICMP_ECHO)
+		return ECHO_REQUEST;
+
+	if (icmp.type != ICMP_DEST_UNREACH || icmp.code != ICMP_FRAG_NEEDED) {
+		metrics->errors_total_unwanted_icmp++;
+		return INVALID;
+	}
+
+	if (pkt_parse_ipv4(dynptr, offset, &ipv4)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	/* The source address in the outer IP header is from the entity that
+	 * originated the ICMP message. Use the original IP header to restore
+	 * the correct flow tuple.
+	 */
+	struct bpf_sock_tuple tuple;
+	tuple.ipv4.saddr = ipv4.daddr;
+	tuple.ipv4.daddr = ipv4.saddr;
+
+	if (!pkt_parse_icmp_l4_ports(dynptr, offset, (flow_ports_t *)&tuple.ipv4.sport)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	return classify_icmp(skb, ipv4.protocol, &tuple,
+			     sizeof(tuple.ipv4), metrics);
+}
+
+static verdict_t process_icmpv6(struct bpf_dynptr *dynptr, __u64 *offset, struct __sk_buff *skb,
+				metrics_t *metrics)
+{
+	struct bpf_sock_tuple tuple;
+	struct ipv6hdr ipv6;
+	struct icmp6hdr icmp6;
+	bool is_fragment;
+	uint8_t l4_proto;
+
+	if (bpf_dynptr_read(&icmp6, sizeof(icmp6), dynptr, *offset, 0)) {
+		metrics->errors_total_malformed_icmp++;
+		return INVALID;
+	}
+
+	/* We should never receive encapsulated echo replies. */
+	if (icmp6.icmp6_type == ICMPV6_ECHO_REPLY) {
+		metrics->errors_total_icmp_echo_replies++;
+		return INVALID;
+	}
+
+	if (icmp6.icmp6_type == ICMPV6_ECHO_REQUEST) {
+		return ECHO_REQUEST;
+	}
+
+	if (icmp6.icmp6_type != ICMPV6_PKT_TOOBIG) {
+		metrics->errors_total_unwanted_icmp++;
+		return INVALID;
+	}
+
+	if (pkt_parse_ipv6(dynptr, offset, &ipv6, &l4_proto, &is_fragment)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	if (is_fragment) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	/* Swap source and dest addresses. */
+	memcpy(&tuple.ipv6.saddr, &ipv6.daddr, sizeof(tuple.ipv6.saddr));
+	memcpy(&tuple.ipv6.daddr, &ipv6.saddr, sizeof(tuple.ipv6.daddr));
+
+	if (!pkt_parse_icmp_l4_ports(dynptr, offset, (flow_ports_t *)&tuple.ipv6.sport)) {
+		metrics->errors_total_malformed_icmp_pkt_too_big++;
+		return INVALID;
+	}
+
+	return classify_icmp(skb, l4_proto, &tuple, sizeof(tuple.ipv6),
+			     metrics);
+}
+
+static verdict_t process_tcp(struct bpf_dynptr *dynptr, __u64 *offset, struct __sk_buff *skb,
+			     struct iphdr_info *info, metrics_t *metrics)
+{
+	struct bpf_sock_tuple tuple;
+	struct tcphdr tcp;
+	uint64_t tuplen;
+
+	metrics->l4_protocol_packets_total_tcp++;
+
+	if (bpf_dynptr_read(&tcp, sizeof(tcp), dynptr, *offset, 0)) {
+		metrics->errors_total_malformed_tcp++;
+		return INVALID;
+	}
+
+	*offset += sizeof(tcp);
+
+	if (tcp.syn)
+		return SYN;
+
+	tuplen = fill_tuple(&tuple, info->hdr, info->len, tcp.source, tcp.dest);
+	return classify_tcp(skb, &tuple, tuplen, info->hdr, &tcp);
+}
+
+static verdict_t process_udp(struct bpf_dynptr *dynptr, __u64 *offset, struct __sk_buff *skb,
+			     struct iphdr_info *info, metrics_t *metrics)
+{
+	struct bpf_sock_tuple tuple;
+	struct udphdr udph;
+	uint64_t tuplen;
+
+	metrics->l4_protocol_packets_total_udp++;
+
+	if (bpf_dynptr_read(&udph, sizeof(udph), dynptr, *offset, 0)) {
+		metrics->errors_total_malformed_udp++;
+		return INVALID;
+	}
+	*offset += sizeof(udph);
+
+	tuplen = fill_tuple(&tuple, info->hdr, info->len, udph.source, udph.dest);
+	return classify_udp(skb, &tuple, tuplen);
+}
+
+static verdict_t process_ipv4(struct __sk_buff *skb, struct bpf_dynptr *dynptr,
+			      __u64 *offset, metrics_t *metrics)
+{
+	struct iphdr ipv4;
+	struct iphdr_info info = {
+		.hdr = &ipv4,
+		.len = sizeof(ipv4),
+	};
+
+	metrics->l3_protocol_packets_total_ipv4++;
+
+	if (pkt_parse_ipv4(dynptr, offset, &ipv4)) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv4.version != 4) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv4_is_fragment(&ipv4)) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	switch (ipv4.protocol) {
+	case IPPROTO_ICMP:
+		return process_icmpv4(skb, dynptr, offset, metrics);
+
+	case IPPROTO_TCP:
+		return process_tcp(dynptr, offset, skb, &info, metrics);
+
+	case IPPROTO_UDP:
+		return process_udp(dynptr, offset, skb, &info, metrics);
+
+	default:
+		metrics->errors_total_unknown_l4_proto++;
+		return INVALID;
+	}
+}
+
+static verdict_t process_ipv6(struct __sk_buff *skb, struct bpf_dynptr *dynptr,
+			      __u64 *offset, metrics_t *metrics)
+{
+	struct ipv6hdr ipv6;
+	struct iphdr_info info = {
+		.hdr = &ipv6,
+		.len = sizeof(ipv6),
+	};
+	uint8_t l4_proto;
+	bool is_fragment;
+
+	metrics->l3_protocol_packets_total_ipv6++;
+
+	if (pkt_parse_ipv6(dynptr, offset, &ipv6, &l4_proto, &is_fragment)) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (ipv6.version != 6) {
+		metrics->errors_total_malformed_ip++;
+		return INVALID;
+	}
+
+	if (is_fragment) {
+		metrics->errors_total_fragmented_ip++;
+		return INVALID;
+	}
+
+	switch (l4_proto) {
+	case IPPROTO_ICMPV6:
+		return process_icmpv6(dynptr, offset, skb, metrics);
+
+	case IPPROTO_TCP:
+		return process_tcp(dynptr, offset, skb, &info, metrics);
+
+	case IPPROTO_UDP:
+		return process_udp(dynptr, offset, skb, &info, metrics);
+
+	default:
+		metrics->errors_total_unknown_l4_proto++;
+		return INVALID;
+	}
+}
+
+SEC("tc")
+int cls_redirect(struct __sk_buff *skb)
+{
+	__u8 encap_buffer[sizeof(encap_headers_t)] = {};
+	struct bpf_dynptr dynptr;
+	struct in_addr next_hop;
+	/* Tracks offset of the dynptr. This will be unnecessary once
+	 * bpf_dynptr_advance() is available.
+	 */
+	__u64 off = 0;
+	ret_t ret;
+
+	bpf_dynptr_from_skb(skb, 0, &dynptr);
+
+	metrics_t *metrics = get_global_metrics();
+	if (metrics == NULL)
+		return TC_ACT_SHOT;
+
+	metrics->processed_packets_total++;
+
+	/* Pass bogus packets as long as we're not sure they're
+	 * destined for us.
+	 */
+	if (skb->protocol != bpf_htons(ETH_P_IP))
+		return TC_ACT_OK;
+
+	encap_headers_t *encap;
+
+	/* Make sure that all encapsulation headers are available in
+	 * the linear portion of the skb. This makes it easy to manipulate them.
+	 */
+	if (bpf_skb_pull_data(skb, sizeof(*encap)))
+		return TC_ACT_OK;
+
+	encap = bpf_dynptr_slice_rdwr(&dynptr, 0, encap_buffer, sizeof(encap_buffer));
+	if (!encap)
+		return TC_ACT_OK;
+
+	off += sizeof(*encap);
+
+	if (encap->ip.ihl != 5)
+		/* We never have any options. */
+		return TC_ACT_OK;
+
+	if (encap->ip.daddr != ENCAPSULATION_IP ||
+	    encap->ip.protocol != IPPROTO_UDP)
+		return TC_ACT_OK;
+
+	/* TODO Check UDP length? */
+	if (encap->udp.dest != ENCAPSULATION_PORT)
+		return TC_ACT_OK;
+
+	/* We now know that the packet is destined to us, we can
+	 * drop bogus ones.
+	 */
+	if (ipv4_is_fragment((void *)&encap->ip)) {
+		metrics->errors_total_fragmented_ip++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.variant != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.control != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.flags != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->gue.hlen !=
+	    sizeof(encap->unigue) / 4 + encap->unigue.hop_count) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->unigue.version != 0) {
+		metrics->errors_total_malformed_encapsulation++;
+		return TC_ACT_SHOT;
+	}
+
+	if (encap->unigue.reserved != 0)
+		return TC_ACT_SHOT;
+
+	MAYBE_RETURN(get_next_hop(&dynptr, &off, encap, &next_hop));
+
+	if (next_hop.s_addr == 0) {
+		metrics->accepted_packets_total_last_hop++;
+		return accept_locally(skb, encap);
+	}
+
+	verdict_t verdict;
+	switch (encap->gue.proto_ctype) {
+	case IPPROTO_IPIP:
+		verdict = process_ipv4(skb, &dynptr, &off, metrics);
+		break;
+
+	case IPPROTO_IPV6:
+		verdict = process_ipv6(skb, &dynptr, &off, metrics);
+		break;
+
+	default:
+		metrics->errors_total_unknown_l3_proto++;
+		return TC_ACT_SHOT;
+	}
+
+	switch (verdict) {
+	case INVALID:
+		/* metrics have already been bumped */
+		return TC_ACT_SHOT;
+
+	case UNKNOWN:
+		return forward_to_next_hop(skb, &dynptr, encap, &next_hop, metrics);
+
+	case ECHO_REQUEST:
+		metrics->accepted_packets_total_icmp_echo_request++;
+		break;
+
+	case SYN:
+		if (encap->unigue.forward_syn) {
+			return forward_to_next_hop(skb, &dynptr, encap, &next_hop,
+						   metrics);
+		}
+
+		metrics->accepted_packets_total_syn++;
+		break;
+
+	case SYN_COOKIE:
+		metrics->accepted_packets_total_syn_cookies++;
+		break;
+
+	case ESTABLISHED:
+		metrics->accepted_packets_total_established++;
+		break;
+	}
+
+	ret = accept_locally(skb, encap);
+
+	if (encap == encap_buffer)
+		bpf_dynptr_write(&dynptr, 0, encap_buffer, sizeof(encap_buffer), 0);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_cls_redirect_subprogs.c b/tools/testing/selftests/bpf/progs/test_cls_redirect_subprogs.c
new file mode 100644
index 000000000000..eed26b70e3a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_cls_redirect_subprogs.c
@@ -0,0 +1,2 @@
+#define SUBPROGS
+#include "test_cls_redirect.c"
diff --git a/tools/testing/selftests/bpf/progs/test_core_autosize.c b/tools/testing/selftests/bpf/progs/test_core_autosize.c
new file mode 100644
index 000000000000..9a7829c5e4a7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_autosize.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* fields of exactly the same size */
+struct test_struct___samesize {
+	void *ptr;
+	unsigned long long val1;
+	unsigned int val2;
+	unsigned short val3;
+	unsigned char val4;
+} __attribute((preserve_access_index));
+
+/* unsigned fields that have to be downsized by libbpf */
+struct test_struct___downsize {
+	void *ptr;
+	unsigned long val1;
+	unsigned long val2;
+	unsigned long val3;
+	unsigned long val4;
+	/* total sz: 40 */
+} __attribute__((preserve_access_index));
+
+/* fields with signed integers of wrong size, should be rejected */
+struct test_struct___signed {
+	void *ptr;
+	long val1;
+	long val2;
+	long val3;
+	long val4;
+} __attribute((preserve_access_index));
+
+/* real layout and sizes according to test's (32-bit) BTF */
+struct test_struct___real {
+	unsigned int ptr; /* can't use `void *`, it is always 8 byte in BPF target */
+	unsigned int val2;
+	unsigned long long val1;
+	unsigned short val3;
+	unsigned char val4;
+	unsigned char _pad;
+	/* total sz: 20 */
+};
+
+struct test_struct___real input = {
+	.ptr = 0x01020304,
+	.val1 = 0x1020304050607080,
+	.val2 = 0x0a0b0c0d,
+	.val3 = 0xfeed,
+	.val4 = 0xb9,
+	._pad = 0xff, /* make sure no accidental zeros are present */
+};
+
+unsigned long long ptr_samesized = 0;
+unsigned long long val1_samesized = 0;
+unsigned long long val2_samesized = 0;
+unsigned long long val3_samesized = 0;
+unsigned long long val4_samesized = 0;
+struct test_struct___real output_samesized = {};
+
+unsigned long long ptr_downsized = 0;
+unsigned long long val1_downsized = 0;
+unsigned long long val2_downsized = 0;
+unsigned long long val3_downsized = 0;
+unsigned long long val4_downsized = 0;
+struct test_struct___real output_downsized = {};
+
+unsigned long long ptr_probed = 0;
+unsigned long long val1_probed = 0;
+unsigned long long val2_probed = 0;
+unsigned long long val3_probed = 0;
+unsigned long long val4_probed = 0;
+
+unsigned long long ptr_signed = 0;
+unsigned long long val1_signed = 0;
+unsigned long long val2_signed = 0;
+unsigned long long val3_signed = 0;
+unsigned long long val4_signed = 0;
+struct test_struct___real output_signed = {};
+
+SEC("raw_tp/sys_exit")
+int handle_samesize(void *ctx)
+{
+	struct test_struct___samesize *in = (void *)&input;
+	struct test_struct___samesize *out = (void *)&output_samesized;
+
+	ptr_samesized = (unsigned long long)in->ptr;
+	val1_samesized = in->val1;
+	val2_samesized = in->val2;
+	val3_samesized = in->val3;
+	val4_samesized = in->val4;
+
+	out->ptr = in->ptr;
+	out->val1 = in->val1;
+	out->val2 = in->val2;
+	out->val3 = in->val3;
+	out->val4 = in->val4;
+
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int handle_downsize(void *ctx)
+{
+	struct test_struct___downsize *in = (void *)&input;
+	struct test_struct___downsize *out = (void *)&output_downsized;
+
+	ptr_downsized = (unsigned long long)in->ptr;
+	val1_downsized = in->val1;
+	val2_downsized = in->val2;
+	val3_downsized = in->val3;
+	val4_downsized = in->val4;
+
+	out->ptr = in->ptr;
+	out->val1 = in->val1;
+	out->val2 = in->val2;
+	out->val3 = in->val3;
+	out->val4 = in->val4;
+
+	return 0;
+}
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define bpf_core_read_int bpf_core_read
+#else
+#define bpf_core_read_int(dst, sz, src) ({ \
+	/* Prevent "subtraction from stack pointer prohibited" */ \
+	volatile long __off = sizeof(*dst) - (sz); \
+	bpf_core_read((char *)(dst) + __off, sz, src); \
+})
+#endif
+
+SEC("raw_tp/sys_enter")
+int handle_probed(void *ctx)
+{
+	struct test_struct___downsize *in = (void *)&input;
+	__u64 tmp;
+
+	tmp = 0;
+	bpf_core_read_int(&tmp, bpf_core_field_size(in->ptr), &in->ptr);
+	ptr_probed = tmp;
+
+	tmp = 0;
+	bpf_core_read_int(&tmp, bpf_core_field_size(in->val1), &in->val1);
+	val1_probed = tmp;
+
+	tmp = 0;
+	bpf_core_read_int(&tmp, bpf_core_field_size(in->val2), &in->val2);
+	val2_probed = tmp;
+
+	tmp = 0;
+	bpf_core_read_int(&tmp, bpf_core_field_size(in->val3), &in->val3);
+	val3_probed = tmp;
+
+	tmp = 0;
+	bpf_core_read_int(&tmp, bpf_core_field_size(in->val4), &in->val4);
+	val4_probed = tmp;
+
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handle_signed(void *ctx)
+{
+	struct test_struct___signed *in = (void *)&input;
+	struct test_struct___signed *out = (void *)&output_signed;
+
+	val2_signed = in->val2;
+	val3_signed = in->val3;
+	val4_signed = in->val4;
+
+	out->val2= in->val2;
+	out->val3= in->val3;
+	out->val4= in->val4;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_extern.c b/tools/testing/selftests/bpf/progs/test_core_extern.c
new file mode 100644
index 000000000000..a3c7c1042f35
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_extern.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <linux/ptrace.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* non-existing BPF helper, to test dead code elimination */
+static int (*bpf_missing_helper)(const void *arg1, int arg2) = (void *) 999;
+
+extern int LINUX_KERNEL_VERSION __kconfig;
+extern int LINUX_UNKNOWN_VIRTUAL_EXTERN __kconfig __weak;
+extern bool CONFIG_BPF_SYSCALL __kconfig; /* strong */
+extern enum libbpf_tristate CONFIG_TRISTATE __kconfig __weak;
+extern bool CONFIG_BOOL __kconfig __weak;
+extern char CONFIG_CHAR __kconfig __weak;
+extern uint16_t CONFIG_USHORT __kconfig __weak;
+extern int CONFIG_INT __kconfig __weak;
+extern uint64_t CONFIG_ULONG __kconfig __weak;
+extern const char CONFIG_STR[8] __kconfig __weak;
+extern uint64_t CONFIG_MISSING __kconfig __weak;
+
+uint64_t kern_ver = -1;
+uint64_t unkn_virt_val = -1;
+uint64_t bpf_syscall = -1;
+uint64_t tristate_val = -1;
+uint64_t bool_val = -1;
+uint64_t char_val = -1;
+uint64_t ushort_val = -1;
+uint64_t int_val = -1;
+uint64_t ulong_val = -1;
+char str_val[8] = {-1, -1, -1, -1, -1, -1, -1, -1};
+uint64_t missing_val = -1;
+
+SEC("raw_tp/sys_enter")
+int handle_sys_enter(struct pt_regs *ctx)
+{
+	int i;
+
+	kern_ver = LINUX_KERNEL_VERSION;
+	unkn_virt_val = LINUX_UNKNOWN_VIRTUAL_EXTERN;
+	bpf_syscall = CONFIG_BPF_SYSCALL;
+	tristate_val = CONFIG_TRISTATE;
+	bool_val = CONFIG_BOOL;
+	char_val = CONFIG_CHAR;
+	ushort_val = CONFIG_USHORT;
+	int_val = CONFIG_INT;
+	ulong_val = CONFIG_ULONG;
+
+	for (i = 0; i < sizeof(CONFIG_STR); i++) {
+		str_val[i] = CONFIG_STR[i];
+	}
+
+	if (CONFIG_MISSING)
+		/* invalid, but dead code - never executed */
+		missing_val = bpf_missing_helper(ctx, 123);
+	else
+		missing_val = 0xDEADC0DE;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_core_read_macros.c b/tools/testing/selftests/bpf/progs/test_core_read_macros.c
new file mode 100644
index 000000000000..873d85a4739b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_read_macros.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* shuffled layout for relocatable (CO-RE) reads */
+struct callback_head___shuffled {
+	void (*func)(struct callback_head___shuffled *head);
+	struct callback_head___shuffled *next;
+};
+
+struct callback_head k_probe_in = {};
+struct callback_head___shuffled k_core_in = {};
+
+struct callback_head *u_probe_in = 0;
+struct callback_head___shuffled *u_core_in = 0;
+
+long k_probe_out = 0;
+long u_probe_out = 0;
+
+long k_core_out = 0;
+long u_core_out = 0;
+
+int my_pid = 0;
+
+SEC("raw_tracepoint/sys_enter")
+int handler(void *ctx)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (my_pid != pid)
+		return 0;
+
+	/* next pointers for kernel address space have to be initialized from
+	 * BPF side, user-space mmaped addresses are still user-space addresses
+	 */
+	k_probe_in.next = &k_probe_in;
+	__builtin_preserve_access_index(({k_core_in.next = &k_core_in;}));
+
+	k_probe_out = (long)BPF_PROBE_READ(&k_probe_in, next, next, func);
+	k_core_out = (long)BPF_CORE_READ(&k_core_in, next, next, func);
+	u_probe_out = (long)BPF_PROBE_READ_USER(u_probe_in, next, next, func);
+	u_core_out = (long)BPF_CORE_READ_USER(u_core_in, next, next, func);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c
new file mode 100644
index 000000000000..448403634eea
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_arrays.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_arrays_output {
+	int a2;
+	int a3;
+	char b123;
+	int c1c;
+	int d00d;
+	int f01c;
+};
+
+struct core_reloc_arrays_substruct {
+	int c;
+	int d;
+};
+
+struct core_reloc_arrays {
+	int a[5];
+	char b[2][3][4];
+	struct core_reloc_arrays_substruct c[3];
+	struct core_reloc_arrays_substruct d[1][2];
+	struct core_reloc_arrays_substruct f[][2];
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_arrays(void *ctx)
+{
+	struct core_reloc_arrays *in = (void *)&data.in;
+	struct core_reloc_arrays_output *out = (void *)&data.out;
+	int *a;
+
+	if (CORE_READ(&out->a2, &in->a[2]))
+		return 1;
+	if (CORE_READ(&out->b123, &in->b[1][2][3]))
+		return 1;
+	if (CORE_READ(&out->c1c, &in->c[1].c))
+		return 1;
+	if (CORE_READ(&out->d00d, &in->d[0][0].d))
+		return 1;
+	if (CORE_READ(&out->f01c, &in->f[0][1].c))
+		return 1;
+
+	a = __builtin_preserve_access_index(({ in->a; }));
+	out->a3 = a[0] + a[1] + a[2] + a[3];
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c
new file mode 100644
index 000000000000..56aec20212b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_direct.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_bitfields {
+	/* unsigned bitfields */
+	uint8_t		ub1: 1;
+	uint8_t		ub2: 2;
+	uint32_t	ub7: 7;
+	/* signed bitfields */
+	int8_t		sb4: 4;
+	int32_t		sb20: 20;
+	/* non-bitfields */
+	uint32_t	u32;
+	int32_t		s32;
+};
+
+/* bitfield read results, all as plain integers */
+struct core_reloc_bitfields_output {
+	int64_t		ub1;
+	int64_t		ub2;
+	int64_t		ub7;
+	int64_t		sb4;
+	int64_t		sb20;
+	int64_t		u32;
+	int64_t		s32;
+};
+
+struct pt_regs;
+
+struct trace_sys_enter {
+	struct pt_regs *regs;
+	long id;
+};
+
+SEC("tp_btf/sys_enter")
+int test_core_bitfields_direct(void *ctx)
+{
+	struct core_reloc_bitfields *in = (void *)&data.in;
+	struct core_reloc_bitfields_output *out = (void *)&data.out;
+
+	out->ub1 = BPF_CORE_READ_BITFIELD(in, ub1);
+	out->ub2 = BPF_CORE_READ_BITFIELD(in, ub2);
+	out->ub7 = BPF_CORE_READ_BITFIELD(in, ub7);
+	out->sb4 = BPF_CORE_READ_BITFIELD(in, sb4);
+	out->sb20 = BPF_CORE_READ_BITFIELD(in, sb20);
+	out->u32 = BPF_CORE_READ_BITFIELD(in, u32);
+	out->s32 = BPF_CORE_READ_BITFIELD(in, s32);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c
new file mode 100644
index 000000000000..b86fdda2a6ea
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_bitfields_probed.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_bitfields {
+	/* unsigned bitfields */
+	uint8_t		ub1: 1;
+	uint8_t		ub2: 2;
+	uint32_t	ub7: 7;
+	/* signed bitfields */
+	int8_t		sb4: 4;
+	int32_t		sb20: 20;
+	/* non-bitfields */
+	uint32_t	u32;
+	int32_t		s32;
+};
+
+/* bitfield read results, all as plain integers */
+struct core_reloc_bitfields_output {
+	int64_t		ub1;
+	int64_t		ub2;
+	int64_t		ub7;
+	int64_t		sb4;
+	int64_t		sb20;
+	int64_t		u32;
+	int64_t		s32;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_bitfields(void *ctx)
+{
+	struct core_reloc_bitfields *in = (void *)&data.in;
+	struct core_reloc_bitfields_output *out = (void *)&data.out;
+
+	out->ub1 = BPF_CORE_READ_BITFIELD_PROBED(in, ub1);
+	out->ub2 = BPF_CORE_READ_BITFIELD_PROBED(in, ub2);
+	out->ub7 = BPF_CORE_READ_BITFIELD_PROBED(in, ub7);
+	out->sb4 = BPF_CORE_READ_BITFIELD_PROBED(in, sb4);
+	out->sb20 = BPF_CORE_READ_BITFIELD_PROBED(in, sb20);
+	out->u32 = BPF_CORE_READ_BITFIELD_PROBED(in, u32);
+	out->s32 = BPF_CORE_READ_BITFIELD_PROBED(in, s32);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
new file mode 100644
index 000000000000..63147fbfae6e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+} data = {};
+
+enum named_unsigned_enum64 {
+	UNSIGNED_ENUM64_VAL1 = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL2 = 0x2ffffffffULL,
+	UNSIGNED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64 {
+	SIGNED_ENUM64_VAL1 = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL2 = -2,
+	SIGNED_ENUM64_VAL3 = 0x3ffffffffLL,
+};
+
+struct core_reloc_enum64val_output {
+	bool unsigned_val1_exists;
+	bool unsigned_val2_exists;
+	bool unsigned_val3_exists;
+	bool signed_val1_exists;
+	bool signed_val2_exists;
+	bool signed_val3_exists;
+
+	long unsigned_val1;
+	long unsigned_val2;
+	long signed_val1;
+	long signed_val2;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_enum64val(void *ctx)
+{
+#if __clang_major__ >= 15
+	struct core_reloc_enum64val_output *out = (void *)&data.out;
+	enum named_unsigned_enum64 named_unsigned = 0;
+	enum named_signed_enum64 named_signed = 0;
+
+	out->unsigned_val1_exists = bpf_core_enum_value_exists(named_unsigned, UNSIGNED_ENUM64_VAL1);
+	out->unsigned_val2_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL2);
+	out->unsigned_val3_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL3);
+	out->signed_val1_exists = bpf_core_enum_value_exists(named_signed, SIGNED_ENUM64_VAL1);
+	out->signed_val2_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL2);
+	out->signed_val3_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL3);
+
+	out->unsigned_val1 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL1);
+	out->unsigned_val2 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL2);
+	out->signed_val1 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL1);
+	out->signed_val2 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL2);
+	/* NAMED_ENUM64_VAL3 value is optional */
+
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_enumval.c b/tools/testing/selftests/bpf/progs/test_core_reloc_enumval.c
new file mode 100644
index 000000000000..e7ef3dada2bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_enumval.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+} data = {};
+
+enum named_enum {
+	NAMED_ENUM_VAL1 = 1,
+	NAMED_ENUM_VAL2 = 2,
+	NAMED_ENUM_VAL3 = 3,
+};
+
+typedef enum {
+	ANON_ENUM_VAL1 = 0x10,
+	ANON_ENUM_VAL2 = 0x20,
+	ANON_ENUM_VAL3 = 0x30,
+} anon_enum;
+
+struct core_reloc_enumval_output {
+	bool named_val1_exists;
+	bool named_val2_exists;
+	bool named_val3_exists;
+	bool anon_val1_exists;
+	bool anon_val2_exists;
+	bool anon_val3_exists;
+
+	int named_val1;
+	int named_val2;
+	int anon_val1;
+	int anon_val2;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_enumval(void *ctx)
+{
+#if __has_builtin(__builtin_preserve_enum_value)
+	struct core_reloc_enumval_output *out = (void *)&data.out;
+	enum named_enum named = 0;
+	anon_enum anon = 0;
+
+	out->named_val1_exists = bpf_core_enum_value_exists(named, NAMED_ENUM_VAL1);
+	out->named_val2_exists = bpf_core_enum_value_exists(enum named_enum, NAMED_ENUM_VAL2);
+	out->named_val3_exists = bpf_core_enum_value_exists(enum named_enum, NAMED_ENUM_VAL3);
+
+	out->anon_val1_exists = bpf_core_enum_value_exists(anon, ANON_ENUM_VAL1);
+	out->anon_val2_exists = bpf_core_enum_value_exists(anon_enum, ANON_ENUM_VAL2);
+	out->anon_val3_exists = bpf_core_enum_value_exists(anon_enum, ANON_ENUM_VAL3);
+
+	out->named_val1 = bpf_core_enum_value(named, NAMED_ENUM_VAL1);
+	out->named_val2 = bpf_core_enum_value(named, NAMED_ENUM_VAL2);
+	/* NAMED_ENUM_VAL3 value is optional */
+
+	out->anon_val1 = bpf_core_enum_value(anon, ANON_ENUM_VAL1);
+	out->anon_val2 = bpf_core_enum_value(anon, ANON_ENUM_VAL2);
+	/* ANON_ENUM_VAL3 value is optional */
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c b/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c
new file mode 100644
index 000000000000..5b8a75097ea3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_existence.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_existence_output {
+	int a_exists;
+	int a_value;
+	int b_exists;
+	int b_value;
+	int c_exists;
+	int c_value;
+	int arr_exists;
+	int arr_value;
+	int s_exists;
+	int s_value;
+};
+
+struct core_reloc_existence {
+	struct {
+		int x;
+	} s;
+	int arr[1];
+	int a;
+	struct {
+		int b;
+	};
+	int c;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_existence(void *ctx)
+{
+	struct core_reloc_existence *in = (void *)&data.in;
+	struct core_reloc_existence_output *out = (void *)&data.out;
+
+	out->a_exists = bpf_core_field_exists(in->a);
+	if (bpf_core_field_exists(struct core_reloc_existence, a))
+		out->a_value = BPF_CORE_READ(in, a);
+	else
+		out->a_value = 0xff000001u;
+
+	out->b_exists = bpf_core_field_exists(in->b);
+	if (bpf_core_field_exists(struct core_reloc_existence, b))
+		out->b_value = BPF_CORE_READ(in, b);
+	else
+		out->b_value = 0xff000002u;
+
+	out->c_exists = bpf_core_field_exists(in->c);
+	if (bpf_core_field_exists(struct core_reloc_existence, c))
+		out->c_value = BPF_CORE_READ(in, c);
+	else
+		out->c_value = 0xff000003u;
+
+	out->arr_exists = bpf_core_field_exists(in->arr);
+	if (bpf_core_field_exists(struct core_reloc_existence, arr))
+		out->arr_value = BPF_CORE_READ(in, arr[0]);
+	else
+		out->arr_value = 0xff000004u;
+
+	out->s_exists = bpf_core_field_exists(in->s);
+	if (bpf_core_field_exists(struct core_reloc_existence, s))
+		out->s_value = BPF_CORE_READ(in, s.x);
+	else
+		out->s_value = 0xff000005u;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c b/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c
new file mode 100644
index 000000000000..525acc2f841b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_flavors.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_flavors {
+	int a;
+	int b;
+	int c;
+};
+
+/* local flavor with reversed layout */
+struct core_reloc_flavors___reversed {
+	int c;
+	int b;
+	int a;
+};
+
+/* local flavor with nested/overlapping layout */
+struct core_reloc_flavors___weird {
+	struct {
+		int b;
+	};
+	/* a and c overlap in local flavor, but this should still work
+	 * correctly with target original flavor
+	 */
+	union {
+		int a;
+		int c;
+	};
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_flavors(void *ctx)
+{
+	struct core_reloc_flavors *in_orig = (void *)&data.in;
+	struct core_reloc_flavors___reversed *in_rev = (void *)&data.in;
+	struct core_reloc_flavors___weird *in_weird = (void *)&data.in;
+	struct core_reloc_flavors *out = (void *)&data.out;
+
+	/* read a using weird layout */
+	if (CORE_READ(&out->a, &in_weird->a))
+		return 1;
+	/* read b using reversed layout */
+	if (CORE_READ(&out->b, &in_rev->b))
+		return 1;
+	/* read c using original layout */
+	if (CORE_READ(&out->c, &in_orig->c))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c b/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c
new file mode 100644
index 000000000000..6b5290739806
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_ints.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_ints {
+	uint8_t		u8_field;
+	int8_t		s8_field;
+	uint16_t	u16_field;
+	int16_t		s16_field;
+	uint32_t	u32_field;
+	int32_t		s32_field;
+	uint64_t	u64_field;
+	int64_t		s64_field;
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_ints(void *ctx)
+{
+	struct core_reloc_ints *in = (void *)&data.in;
+	struct core_reloc_ints *out = (void *)&data.out;
+
+	if (CORE_READ(&out->u8_field, &in->u8_field) ||
+	    CORE_READ(&out->s8_field, &in->s8_field) ||
+	    CORE_READ(&out->u16_field, &in->u16_field) ||
+	    CORE_READ(&out->s16_field, &in->s16_field) ||
+	    CORE_READ(&out->u32_field, &in->u32_field) ||
+	    CORE_READ(&out->s32_field, &in->s32_field) ||
+	    CORE_READ(&out->u64_field, &in->u64_field) ||
+	    CORE_READ(&out->s64_field, &in->s64_field))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c
new file mode 100644
index 000000000000..ee4a601dcb06
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+	uint64_t my_pid_tgid;
+} data = {};
+
+struct core_reloc_kernel_output {
+	int valid[10];
+	/* we have test_progs[-flavor], so cut flavor part */
+	char comm[sizeof("test_progs")];
+	int comm_len;
+	bool local_task_struct_matches;
+};
+
+struct task_struct {
+	int pid;
+	int tgid;
+	char comm[16];
+	struct task_struct *group_leader;
+};
+
+struct mm_struct___wrong {
+    int abc_whatever_should_not_exist;
+};
+
+struct task_struct___local {
+    int pid;
+    struct mm_struct___wrong *mm;
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_kernel(void *ctx)
+{
+	/* Support for the BPF_TYPE_MATCHES argument to the
+	 * __builtin_preserve_type_info builtin was added at some point during
+	 * development of clang 15 and it's what we require for this test.
+	 */
+#if __has_builtin(__builtin_preserve_type_info) && __clang_major__ >= 15
+	struct task_struct *task = (void *)bpf_get_current_task();
+	struct core_reloc_kernel_output *out = (void *)&data.out;
+	uint64_t pid_tgid = bpf_get_current_pid_tgid();
+	int32_t real_tgid = (int32_t)pid_tgid;
+	int pid, tgid;
+
+	if (data.my_pid_tgid != pid_tgid)
+		return 0;
+
+	if (CORE_READ(&pid, &task->pid) ||
+	    CORE_READ(&tgid, &task->tgid))
+		return 1;
+
+	/* validate pid + tgid matches */
+	out->valid[0] = (((uint64_t)pid << 32) | tgid) == pid_tgid;
+
+	/* test variadic BPF_CORE_READ macros */
+	out->valid[1] = BPF_CORE_READ(task,
+				      tgid) == real_tgid;
+	out->valid[2] = BPF_CORE_READ(task,
+				      group_leader,
+				      tgid) == real_tgid;
+	out->valid[3] = BPF_CORE_READ(task,
+				      group_leader, group_leader,
+				      tgid) == real_tgid;
+	out->valid[4] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      tgid) == real_tgid;
+	out->valid[5] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      group_leader,
+				      tgid) == real_tgid;
+	out->valid[6] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      group_leader, group_leader,
+				      tgid) == real_tgid;
+	out->valid[7] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      group_leader, group_leader, group_leader,
+				      tgid) == real_tgid;
+	out->valid[8] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      group_leader, group_leader, group_leader,
+				      group_leader,
+				      tgid) == real_tgid;
+	out->valid[9] = BPF_CORE_READ(task,
+				      group_leader, group_leader, group_leader,
+				      group_leader, group_leader, group_leader,
+				      group_leader, group_leader,
+				      tgid) == real_tgid;
+
+	/* test BPF_CORE_READ_STR_INTO() returns correct code and contents */
+	out->comm_len = BPF_CORE_READ_STR_INTO(
+		&out->comm, task,
+		group_leader, group_leader, group_leader, group_leader,
+		group_leader, group_leader, group_leader, group_leader,
+		comm);
+
+	out->local_task_struct_matches = bpf_core_type_matches(struct task_struct___local);
+#else
+	data.skip = true;
+#endif
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c b/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c
new file mode 100644
index 000000000000..d5756dbdef82
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_misc.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_misc_output {
+	int a, b, c;
+};
+
+struct core_reloc_misc___a {
+	int a1;
+	int a2;
+};
+
+struct core_reloc_misc___b {
+	int b1;
+	int b2;
+};
+
+/* fixed two first members, can be extended with new fields */
+struct core_reloc_misc_extensible {
+	int a;
+	int b;
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_misc(void *ctx)
+{
+	struct core_reloc_misc___a *in_a = (void *)&data.in;
+	struct core_reloc_misc___b *in_b = (void *)&data.in;
+	struct core_reloc_misc_extensible *in_ext = (void *)&data.in;
+	struct core_reloc_misc_output *out = (void *)&data.out;
+
+	/* record two different relocations with the same accessor string */
+	if (CORE_READ(&out->a, &in_a->a1) ||		/* accessor: 0:0 */
+	    CORE_READ(&out->b, &in_b->b1))		/* accessor: 0:0 */
+		return 1;
+
+	/* Validate relocations capture array-only accesses for structs with
+	 * fixed header, but with potentially extendable tail. This will read
+	 * first 4 bytes of 2nd element of in_ext array of potentially
+	 * variably sized struct core_reloc_misc_extensible. */ 
+	if (CORE_READ(&out->c, &in_ext[2]))		/* accessor: 2 */
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c
new file mode 100644
index 000000000000..b2ded497572a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_mods.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_mods_output {
+	int a, b, c, d, e, f, g, h;
+};
+
+typedef const int int_t;
+typedef const char *char_ptr_t;
+typedef const int arr_t[7];
+
+struct core_reloc_mods_substruct {
+	int x;
+	int y;
+};
+
+typedef struct {
+	int x;
+	int y;
+} core_reloc_mods_substruct_t;
+
+struct core_reloc_mods {
+	int a;
+	int_t b;
+	char *c;
+	char_ptr_t d;
+	int e[3];
+	arr_t f;
+	struct core_reloc_mods_substruct g;
+	core_reloc_mods_substruct_t h;
+};
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+#else
+#define CORE_READ(dst, src) ({ \
+	int __sz = sizeof(*(dst)) < sizeof(*(src)) ? sizeof(*(dst)) : \
+						     sizeof(*(src)); \
+	bpf_core_read((char *)(dst) + sizeof(*(dst)) - __sz, __sz, \
+		      (const char *)(src) + sizeof(*(src)) - __sz); \
+})
+#endif
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_mods(void *ctx)
+{
+	struct core_reloc_mods *in = (void *)&data.in;
+	struct core_reloc_mods_output *out = (void *)&data.out;
+
+	if (CORE_READ(&out->a, &in->a) ||
+	    CORE_READ(&out->b, &in->b) ||
+	    CORE_READ(&out->c, &in->c) ||
+	    CORE_READ(&out->d, &in->d) ||
+	    CORE_READ(&out->e, &in->e[2]) ||
+	    CORE_READ(&out->f, &in->f[1]) ||
+	    CORE_READ(&out->g, &in->g.x) ||
+	    CORE_READ(&out->h, &in->h.y))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_module.c b/tools/testing/selftests/bpf/progs/test_core_reloc_module.c
new file mode 100644
index 000000000000..bcb31ff92dcc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_module.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct bpf_testmod_test_read_ctx {
+	/* field order is mixed up */
+	size_t len;
+	char *buf;
+	loff_t off;
+} __attribute__((preserve_access_index));
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+	uint64_t my_pid_tgid;
+} data = {};
+
+struct core_reloc_module_output {
+	long long len;
+	long long off;
+	int read_ctx_sz;
+	bool read_ctx_exists;
+	bool buf_exists;
+	bool len_exists;
+	bool off_exists;
+	/* we have test_progs[-flavor], so cut flavor part */
+	char comm[sizeof("test_progs")];
+	int comm_len;
+};
+
+SEC("raw_tp/bpf_testmod_test_read")
+int BPF_PROG(test_core_module_probed,
+	     struct task_struct *task,
+	     struct bpf_testmod_test_read_ctx *read_ctx)
+{
+#if __has_builtin(__builtin_preserve_enum_value)
+	struct core_reloc_module_output *out = (void *)&data.out;
+	__u64 pid_tgid = bpf_get_current_pid_tgid();
+	__s32 real_tgid = (__s32)(pid_tgid >> 32);
+	__s32 real_pid = (__s32)pid_tgid;
+
+	if (data.my_pid_tgid != pid_tgid)
+		return 0;
+
+	if (BPF_CORE_READ(task, pid) != real_pid || BPF_CORE_READ(task, tgid) != real_tgid)
+		return 0;
+
+	out->len = BPF_CORE_READ(read_ctx, len);
+	out->off = BPF_CORE_READ(read_ctx, off);
+
+	out->read_ctx_sz = bpf_core_type_size(struct bpf_testmod_test_read_ctx);
+	out->read_ctx_exists = bpf_core_type_exists(struct bpf_testmod_test_read_ctx);
+	out->buf_exists = bpf_core_field_exists(read_ctx->buf);
+	out->off_exists = bpf_core_field_exists(read_ctx->off);
+	out->len_exists = bpf_core_field_exists(read_ctx->len);
+
+	out->comm_len = BPF_CORE_READ_STR_INTO(&out->comm, task, comm);
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
+
+SEC("tp_btf/bpf_testmod_test_read")
+int BPF_PROG(test_core_module_direct,
+	     struct task_struct *task,
+	     struct bpf_testmod_test_read_ctx *read_ctx)
+{
+#if __has_builtin(__builtin_preserve_enum_value)
+	struct core_reloc_module_output *out = (void *)&data.out;
+	__u64 pid_tgid = bpf_get_current_pid_tgid();
+	__s32 real_tgid = (__s32)(pid_tgid >> 32);
+	__s32 real_pid = (__s32)pid_tgid;
+
+	if (data.my_pid_tgid != pid_tgid)
+		return 0;
+
+	if (task->pid != real_pid || task->tgid != real_tgid)
+		return 0;
+
+	out->len = read_ctx->len;
+	out->off = read_ctx->off;
+
+	out->read_ctx_sz = bpf_core_type_size(struct bpf_testmod_test_read_ctx);
+	out->read_ctx_exists = bpf_core_type_exists(struct bpf_testmod_test_read_ctx);
+	out->buf_exists = bpf_core_field_exists(read_ctx->buf);
+	out->off_exists = bpf_core_field_exists(read_ctx->off);
+	out->len_exists = bpf_core_field_exists(read_ctx->len);
+
+	out->comm_len = BPF_CORE_READ_STR_INTO(&out->comm, task, comm);
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c b/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c
new file mode 100644
index 000000000000..2b4b6d49c677
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_nesting.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_nesting_substruct {
+	int a;
+};
+
+union core_reloc_nesting_subunion {
+	int b;
+};
+
+/* int a.a.a and b.b.b accesses */
+struct core_reloc_nesting {
+	union {
+		struct core_reloc_nesting_substruct a;
+	} a;
+	struct {
+		union core_reloc_nesting_subunion b;
+	} b;
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_nesting(void *ctx)
+{
+	struct core_reloc_nesting *in = (void *)&data.in;
+	struct core_reloc_nesting *out = (void *)&data.out;
+
+	if (CORE_READ(&out->a.a.a, &in->a.a.a))
+		return 1;
+	if (CORE_READ(&out->b.b.b, &in->b.b.b))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c b/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c
new file mode 100644
index 000000000000..2a8975678aa6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_primitives.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+enum core_reloc_primitives_enum {
+	A = 0,
+	B = 1,
+};
+
+struct core_reloc_primitives {
+	char a;
+	int b;
+	enum core_reloc_primitives_enum c;
+	void *d;
+	int (*f)(const char *);
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_primitives(void *ctx)
+{
+	struct core_reloc_primitives *in = (void *)&data.in;
+	struct core_reloc_primitives *out = (void *)&data.out;
+
+	if (CORE_READ(&out->a, &in->a) ||
+	    CORE_READ(&out->b, &in->b) ||
+	    CORE_READ(&out->c, &in->c) ||
+	    CORE_READ(&out->d, &in->d) ||
+	    CORE_READ(&out->f, &in->f))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c
new file mode 100644
index 000000000000..ca61a5183b88
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_ptr_as_arr.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_ptr_as_arr {
+	int a;
+};
+
+#define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_ptr_as_arr(void *ctx)
+{
+	struct core_reloc_ptr_as_arr *in = (void *)&data.in;
+	struct core_reloc_ptr_as_arr *out = (void *)&data.out;
+
+	if (CORE_READ(&out->a, &in[2].a))
+		return 1;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_size.c b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c
new file mode 100644
index 000000000000..5b686053ce42
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_size.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+} data = {};
+
+struct core_reloc_size_output {
+	int int_sz;
+	int int_off;
+	int struct_sz;
+	int struct_off;
+	int union_sz;
+	int union_off;
+	int arr_sz;
+	int arr_off;
+	int arr_elem_sz;
+	int arr_elem_off;
+	int ptr_sz;
+	int ptr_off;
+	int enum_sz;
+	int enum_off;
+	int float_sz;
+	int float_off;
+};
+
+struct core_reloc_size {
+	int int_field;
+	struct { int x; } struct_field;
+	union { int x; } union_field;
+	int arr_field[4];
+	void *ptr_field;
+	enum { VALUE = 123 } enum_field;
+	float float_field;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_size(void *ctx)
+{
+	struct core_reloc_size *in = (void *)&data.in;
+	struct core_reloc_size_output *out = (void *)&data.out;
+
+	out->int_sz = bpf_core_field_size(in->int_field);
+	out->int_off = bpf_core_field_offset(in->int_field);
+
+	out->struct_sz = bpf_core_field_size(in->struct_field);
+	out->struct_off = bpf_core_field_offset(in->struct_field);
+
+	out->union_sz = bpf_core_field_size(in->union_field);
+	out->union_off = bpf_core_field_offset(in->union_field);
+
+	out->arr_sz = bpf_core_field_size(in->arr_field);
+	out->arr_off = bpf_core_field_offset(in->arr_field);
+
+	out->arr_elem_sz = bpf_core_field_size(struct core_reloc_size, arr_field[1]);
+	out->arr_elem_off = bpf_core_field_offset(struct core_reloc_size, arr_field[1]);
+
+	out->ptr_sz = bpf_core_field_size(struct core_reloc_size, ptr_field);
+	out->ptr_off = bpf_core_field_offset(struct core_reloc_size, ptr_field);
+
+	out->enum_sz = bpf_core_field_size(struct core_reloc_size, enum_field);
+	out->enum_off = bpf_core_field_offset(struct core_reloc_size, enum_field);
+
+	out->float_sz = bpf_core_field_size(struct core_reloc_size, float_field);
+	out->float_off = bpf_core_field_offset(struct core_reloc_size, float_field);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c
new file mode 100644
index 000000000000..2edb4df35e6e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+} data = {};
+
+struct a_struct {
+	int x;
+};
+
+struct a_complex_struct {
+	union {
+		struct a_struct *a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
+union a_union {
+	int y;
+	int z;
+};
+
+typedef struct a_struct named_struct_typedef;
+
+typedef struct { int x, y, z; } anon_struct_typedef;
+
+typedef struct {
+	int a, b, c;
+} *struct_ptr_typedef;
+
+enum an_enum {
+	AN_ENUM_VAL1 = 1,
+	AN_ENUM_VAL2 = 2,
+	AN_ENUM_VAL3 = 3,
+};
+
+typedef int int_typedef;
+
+typedef enum { TYPEDEF_ENUM_VAL1, TYPEDEF_ENUM_VAL2 } enum_typedef;
+
+typedef void *void_ptr_typedef;
+typedef int *restrict restrict_ptr_typedef;
+
+typedef int (*func_proto_typedef)(long);
+
+typedef char arr_typedef[20];
+
+struct core_reloc_type_based_output {
+	bool struct_exists;
+	bool complex_struct_exists;
+	bool union_exists;
+	bool enum_exists;
+	bool typedef_named_struct_exists;
+	bool typedef_anon_struct_exists;
+	bool typedef_struct_ptr_exists;
+	bool typedef_int_exists;
+	bool typedef_enum_exists;
+	bool typedef_void_ptr_exists;
+	bool typedef_restrict_ptr_exists;
+	bool typedef_func_proto_exists;
+	bool typedef_arr_exists;
+
+	bool struct_matches;
+	bool complex_struct_matches;
+	bool union_matches;
+	bool enum_matches;
+	bool typedef_named_struct_matches;
+	bool typedef_anon_struct_matches;
+	bool typedef_struct_ptr_matches;
+	bool typedef_int_matches;
+	bool typedef_enum_matches;
+	bool typedef_void_ptr_matches;
+	bool typedef_restrict_ptr_matches;
+	bool typedef_func_proto_matches;
+	bool typedef_arr_matches;
+
+	int struct_sz;
+	int union_sz;
+	int enum_sz;
+	int typedef_named_struct_sz;
+	int typedef_anon_struct_sz;
+	int typedef_struct_ptr_sz;
+	int typedef_int_sz;
+	int typedef_enum_sz;
+	int typedef_void_ptr_sz;
+	int typedef_func_proto_sz;
+	int typedef_arr_sz;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_type_based(void *ctx)
+{
+	/* Support for the BPF_TYPE_MATCHES argument to the
+	 * __builtin_preserve_type_info builtin was added at some point during
+	 * development of clang 15 and it's what we require for this test. Part of it
+	 * could run with merely __builtin_preserve_type_info (which could be checked
+	 * separately), but we have to find an upper bound.
+	 */
+#if __has_builtin(__builtin_preserve_type_info) && __clang_major__ >= 15
+	struct core_reloc_type_based_output *out = (void *)&data.out;
+
+	out->struct_exists = bpf_core_type_exists(struct a_struct);
+	out->complex_struct_exists = bpf_core_type_exists(struct a_complex_struct);
+	out->union_exists = bpf_core_type_exists(union a_union);
+	out->enum_exists = bpf_core_type_exists(enum an_enum);
+	out->typedef_named_struct_exists = bpf_core_type_exists(named_struct_typedef);
+	out->typedef_anon_struct_exists = bpf_core_type_exists(anon_struct_typedef);
+	out->typedef_struct_ptr_exists = bpf_core_type_exists(struct_ptr_typedef);
+	out->typedef_int_exists = bpf_core_type_exists(int_typedef);
+	out->typedef_enum_exists = bpf_core_type_exists(enum_typedef);
+	out->typedef_void_ptr_exists = bpf_core_type_exists(void_ptr_typedef);
+	out->typedef_restrict_ptr_exists = bpf_core_type_exists(restrict_ptr_typedef);
+	out->typedef_func_proto_exists = bpf_core_type_exists(func_proto_typedef);
+	out->typedef_arr_exists = bpf_core_type_exists(arr_typedef);
+
+	out->struct_matches = bpf_core_type_matches(struct a_struct);
+	out->complex_struct_matches = bpf_core_type_matches(struct a_complex_struct);
+	out->union_matches = bpf_core_type_matches(union a_union);
+	out->enum_matches = bpf_core_type_matches(enum an_enum);
+	out->typedef_named_struct_matches = bpf_core_type_matches(named_struct_typedef);
+	out->typedef_anon_struct_matches = bpf_core_type_matches(anon_struct_typedef);
+	out->typedef_struct_ptr_matches = bpf_core_type_matches(struct_ptr_typedef);
+	out->typedef_int_matches = bpf_core_type_matches(int_typedef);
+	out->typedef_enum_matches = bpf_core_type_matches(enum_typedef);
+	out->typedef_void_ptr_matches = bpf_core_type_matches(void_ptr_typedef);
+	out->typedef_restrict_ptr_matches = bpf_core_type_matches(restrict_ptr_typedef);
+	out->typedef_func_proto_matches = bpf_core_type_matches(func_proto_typedef);
+	out->typedef_arr_matches = bpf_core_type_matches(arr_typedef);
+
+	out->struct_sz = bpf_core_type_size(struct a_struct);
+	out->union_sz = bpf_core_type_size(union a_union);
+	out->enum_sz = bpf_core_type_size(enum an_enum);
+	out->typedef_named_struct_sz = bpf_core_type_size(named_struct_typedef);
+	out->typedef_anon_struct_sz = bpf_core_type_size(anon_struct_typedef);
+	out->typedef_struct_ptr_sz = bpf_core_type_size(struct_ptr_typedef);
+	out->typedef_int_sz = bpf_core_type_size(int_typedef);
+	out->typedef_enum_sz = bpf_core_type_size(enum_typedef);
+	out->typedef_void_ptr_sz = bpf_core_type_size(void_ptr_typedef);
+	out->typedef_func_proto_sz = bpf_core_type_size(func_proto_typedef);
+	out->typedef_arr_sz = bpf_core_type_size(arr_typedef);
+#else
+	data.skip = true;
+#endif
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_type_id.c b/tools/testing/selftests/bpf/progs/test_core_reloc_type_id.c
new file mode 100644
index 000000000000..6fc8b9d66e34
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_type_id.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+} data = {};
+
+/* some types are shared with test_core_reloc_type_based.c */
+struct a_struct {
+	int x;
+};
+
+union a_union {
+	int y;
+	int z;
+};
+
+enum an_enum {
+	AN_ENUM_VAL1 = 1,
+	AN_ENUM_VAL2 = 2,
+	AN_ENUM_VAL3 = 3,
+};
+
+typedef struct a_struct named_struct_typedef;
+
+typedef int (*func_proto_typedef)(long);
+
+typedef char arr_typedef[20];
+
+struct core_reloc_type_id_output {
+	int local_anon_struct;
+	int local_anon_union;
+	int local_anon_enum;
+	int local_anon_func_proto_ptr;
+	int local_anon_void_ptr;
+	int local_anon_arr;
+
+	int local_struct;
+	int local_union;
+	int local_enum;
+	int local_int;
+	int local_struct_typedef;
+	int local_func_proto_typedef;
+	int local_arr_typedef;
+
+	int targ_struct;
+	int targ_union;
+	int targ_enum;
+	int targ_int;
+	int targ_struct_typedef;
+	int targ_func_proto_typedef;
+	int targ_arr_typedef;
+};
+
+/* preserve types even if Clang doesn't support built-in */
+struct a_struct t1 = {};
+union a_union t2 = {};
+enum an_enum t3 = 0;
+named_struct_typedef t4 = {};
+func_proto_typedef t5 = 0;
+arr_typedef t6 = {};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_type_id(void *ctx)
+{
+	/* We use __builtin_btf_type_id() in this tests, but up until the time
+	 * __builtin_preserve_type_info() was added it contained a bug that
+	 * would make this test fail. The bug was fixed ([0]) with addition of
+	 * __builtin_preserve_type_info(), though, so that's what we are using
+	 * to detect whether this test has to be executed, however strange
+	 * that might look like.
+	 *
+	 *   [0] https://github.com/llvm/llvm-project/commit/00602ee7ef0bf6c68d690a2bd729c12b95c95c99
+	 */
+#if __has_builtin(__builtin_preserve_type_info)
+	struct core_reloc_type_id_output *out = (void *)&data.out;
+
+	out->local_anon_struct = bpf_core_type_id_local(struct { int marker_field; });
+	out->local_anon_union = bpf_core_type_id_local(union { int marker_field; });
+	out->local_anon_enum = bpf_core_type_id_local(enum { MARKER_ENUM_VAL = 123 });
+	out->local_anon_func_proto_ptr = bpf_core_type_id_local(_Bool(*)(int));
+	out->local_anon_void_ptr = bpf_core_type_id_local(void *);
+	out->local_anon_arr = bpf_core_type_id_local(_Bool[47]);
+
+	out->local_struct = bpf_core_type_id_local(struct a_struct);
+	out->local_union = bpf_core_type_id_local(union a_union);
+	out->local_enum = bpf_core_type_id_local(enum an_enum);
+	out->local_int = bpf_core_type_id_local(int);
+	out->local_struct_typedef = bpf_core_type_id_local(named_struct_typedef);
+	out->local_func_proto_typedef = bpf_core_type_id_local(func_proto_typedef);
+	out->local_arr_typedef = bpf_core_type_id_local(arr_typedef);
+
+	out->targ_struct = bpf_core_type_id_kernel(struct a_struct);
+	out->targ_union = bpf_core_type_id_kernel(union a_union);
+	out->targ_enum = bpf_core_type_id_kernel(enum an_enum);
+	out->targ_int = bpf_core_type_id_kernel(int);
+	out->targ_struct_typedef = bpf_core_type_id_kernel(named_struct_typedef);
+	out->targ_func_proto_typedef = bpf_core_type_id_kernel(func_proto_typedef);
+	out->targ_arr_typedef = bpf_core_type_id_kernel(arr_typedef);
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_retro.c b/tools/testing/selftests/bpf/progs/test_core_retro.c
new file mode 100644
index 000000000000..20861ec2f674
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_retro.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+struct task_struct {
+	int tgid;
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} exp_tgid_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} results SEC(".maps");
+
+SEC("tp/raw_syscalls/sys_enter")
+int handle_sys_enter(void *ctx)
+{
+	struct task_struct *task = (void *)bpf_get_current_task();
+	int tgid = BPF_CORE_READ(task, tgid);
+	int zero = 0;
+	int real_tgid = bpf_get_current_pid_tgid() >> 32;
+	int *exp_tgid = bpf_map_lookup_elem(&exp_tgid_map, &zero);
+
+	/* only pass through sys_enters from test process */
+	if (!exp_tgid || *exp_tgid != real_tgid)
+		return 0;
+
+	bpf_map_update_elem(&results, &zero, &tgid, 0);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_custom_sec_handlers.c b/tools/testing/selftests/bpf/progs/test_custom_sec_handlers.c
new file mode 100644
index 000000000000..4061f701ca50
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_custom_sec_handlers.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+const volatile int my_pid;
+
+bool abc1_called;
+bool abc2_called;
+bool custom1_called;
+bool custom2_called;
+bool kprobe1_called;
+bool xyz_called;
+
+SEC("abc")
+int abc1(void *ctx)
+{
+	abc1_called = true;
+	return 0;
+}
+
+SEC("abc/whatever")
+int abc2(void *ctx)
+{
+	abc2_called = true;
+	return 0;
+}
+
+SEC("custom")
+int custom1(void *ctx)
+{
+	custom1_called = true;
+	return 0;
+}
+
+SEC("custom/something")
+int custom2(void *ctx)
+{
+	custom2_called = true;
+	return 0;
+}
+
+SEC("kprobe")
+int kprobe1(void *ctx)
+{
+	kprobe1_called = true;
+	return 0;
+}
+
+SEC("xyz/blah")
+int xyz(void *ctx)
+{
+	int whatever;
+
+	/* use sleepable helper, custom handler should set sleepable flag */
+	bpf_copy_from_user(&whatever, sizeof(whatever), NULL);
+	xyz_called = true;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_d_path.c b/tools/testing/selftests/bpf/progs/test_d_path.c
new file mode 100644
index 000000000000..84e1f883f97b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_d_path.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define MAX_PATH_LEN		128
+#define MAX_FILES		7
+
+pid_t my_pid = 0;
+__u32 cnt_stat = 0;
+__u32 cnt_close = 0;
+char paths_stat[MAX_FILES][MAX_PATH_LEN] = {};
+char paths_close[MAX_FILES][MAX_PATH_LEN] = {};
+int rets_stat[MAX_FILES] = {};
+int rets_close[MAX_FILES] = {};
+
+int called_stat = 0;
+int called_close = 0;
+
+SEC("fentry/security_inode_getattr")
+int BPF_PROG(prog_stat, struct path *path, struct kstat *stat,
+	     __u32 request_mask, unsigned int query_flags)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+	__u32 cnt = cnt_stat;
+	int ret;
+
+	called_stat = 1;
+
+	if (pid != my_pid)
+		return 0;
+
+	if (cnt >= MAX_FILES)
+		return 0;
+	ret = bpf_d_path(path, paths_stat[cnt], MAX_PATH_LEN);
+
+	rets_stat[cnt] = ret;
+	cnt_stat++;
+	return 0;
+}
+
+SEC("fentry/filp_close")
+int BPF_PROG(prog_close, struct file *file, void *id)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+	__u32 cnt = cnt_close;
+	int ret;
+
+	called_close = 1;
+
+	if (pid != my_pid)
+		return 0;
+
+	if (cnt >= MAX_FILES)
+		return 0;
+	ret = bpf_d_path(&file->f_path,
+			 paths_close[cnt], MAX_PATH_LEN);
+
+	rets_close[cnt] = ret;
+	cnt_close++;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_d_path_check_rdonly_mem.c b/tools/testing/selftests/bpf/progs/test_d_path_check_rdonly_mem.c
new file mode 100644
index 000000000000..27c27cff6a3a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_d_path_check_rdonly_mem.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Google */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+extern const int bpf_prog_active __ksym;
+
+SEC("fentry/security_inode_getattr")
+int BPF_PROG(d_path_check_rdonly_mem, struct path *path, struct kstat *stat,
+	     __u32 request_mask, unsigned int query_flags)
+{
+	void *active;
+	__u32 cpu;
+
+	cpu = bpf_get_smp_processor_id();
+	active = (void *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+	if (active) {
+		/* FAIL here! 'active' points to readonly memory. bpf helpers
+		 * that update its arguments can not write into it.
+		 */
+		bpf_d_path(path, active, sizeof(int));
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_d_path_check_types.c b/tools/testing/selftests/bpf/progs/test_d_path_check_types.c
new file mode 100644
index 000000000000..7e02b7361307
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_d_path_check_types.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+extern const int bpf_prog_active __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 1 << 12);
+} ringbuf SEC(".maps");
+
+SEC("fentry/security_inode_getattr")
+int BPF_PROG(d_path_check_rdonly_mem, struct path *path, struct kstat *stat,
+	     __u32 request_mask, unsigned int query_flags)
+{
+	void *active;
+	u32 cpu;
+
+	cpu = bpf_get_smp_processor_id();
+	active = (void *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+	if (active) {
+		/* FAIL here! 'active' points to 'regular' memory. It
+		 * cannot be submitted to ring buffer.
+		 */
+		bpf_ringbuf_submit(active, 0);
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_deny_namespace.c b/tools/testing/selftests/bpf/progs/test_deny_namespace.c
new file mode 100644
index 000000000000..e96b901a733c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_deny_namespace.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <errno.h>
+#include <linux/capability.h>
+
+typedef struct { unsigned long long val; } kernel_cap_t;
+
+struct cred {
+	kernel_cap_t cap_effective;
+} __attribute__((preserve_access_index));
+
+char _license[] SEC("license") = "GPL";
+
+SEC("lsm.s/userns_create")
+int BPF_PROG(test_userns_create, const struct cred *cred, int ret)
+{
+	kernel_cap_t caps = cred->cap_effective;
+	__u64 cap_mask = 1ULL << CAP_SYS_ADMIN;
+
+	if (ret)
+		return 0;
+
+	ret = -EPERM;
+	if (caps.val & cap_mask)
+		return 0;
+
+	return -EPERM;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_enable_stats.c b/tools/testing/selftests/bpf/progs/test_enable_stats.c
new file mode 100644
index 000000000000..1705097d01d7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_enable_stats.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 count = 0;
+
+SEC("raw_tracepoint/sys_enter")
+int test_enable_stats(void *ctx)
+{
+	__sync_fetch_and_add(&count, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_endian.c b/tools/testing/selftests/bpf/progs/test_endian.c
new file mode 100644
index 000000000000..ddb687c5d125
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_endian.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define IN16 0x1234
+#define IN32 0x12345678U
+#define IN64 0x123456789abcdef0ULL
+
+__u16 in16 = 0;
+__u32 in32 = 0;
+__u64 in64 = 0;
+
+__u16 out16 = 0;
+__u32 out32 = 0;
+__u64 out64 = 0;
+
+__u16 const16 = 0;
+__u32 const32 = 0;
+__u64 const64 = 0;
+
+SEC("raw_tp/sys_enter")
+int sys_enter(const void *ctx)
+{
+	out16 = __builtin_bswap16(in16);
+	out32 = __builtin_bswap32(in32);
+	out64 = __builtin_bswap64(in64);
+	const16 = ___bpf_swab16(IN16);
+	const32 = ___bpf_swab32(IN32);
+	const64 = ___bpf_swab64(IN64);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_fill_link_info.c b/tools/testing/selftests/bpf/progs/test_fill_link_info.c
new file mode 100644
index 000000000000..fac33a14f200
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_fill_link_info.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+
+extern bool CONFIG_X86_KERNEL_IBT __kconfig __weak;
+extern bool CONFIG_PPC_FTRACE_OUT_OF_LINE __kconfig __weak;
+extern bool CONFIG_KPROBES_ON_FTRACE __kconfig __weak;
+extern bool CONFIG_PPC64 __kconfig __weak;
+
+/* This function is here to have CONFIG_X86_KERNEL_IBT,
+ * CONFIG_PPC_FTRACE_OUT_OF_LINE, CONFIG_KPROBES_ON_FTRACE,
+ * CONFIG_PPC6 used and added to object BTF.
+ */
+int unused(void)
+{
+	return CONFIG_X86_KERNEL_IBT ||
+			CONFIG_PPC_FTRACE_OUT_OF_LINE ||
+			CONFIG_KPROBES_ON_FTRACE ||
+			CONFIG_PPC64 ? 0 : 1;
+}
+
+SEC("kprobe")
+int BPF_PROG(kprobe_run)
+{
+	return 0;
+}
+
+SEC("uprobe")
+int BPF_PROG(uprobe_run)
+{
+	return 0;
+}
+
+SEC("tracepoint")
+int BPF_PROG(tp_run)
+{
+	return 0;
+}
+
+SEC("perf_event")
+int event_run(void *ctx)
+{
+	return 0;
+}
+
+SEC("kprobe.multi")
+int BPF_PROG(kmulti_run)
+{
+	return 0;
+}
+
+SEC("uprobe.multi")
+int BPF_PROG(umulti_run)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_fsverity.c b/tools/testing/selftests/bpf/progs/test_fsverity.c
new file mode 100644
index 000000000000..9e0f73e8189c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_fsverity.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_kfuncs.h"
+
+char _license[] SEC("license") = "GPL";
+
+#ifndef SHA256_DIGEST_SIZE
+#define SHA256_DIGEST_SIZE      32
+#endif
+
+#define SIZEOF_STRUCT_FSVERITY_DIGEST 4  /* sizeof(struct fsverity_digest) */
+
+char expected_digest[SIZEOF_STRUCT_FSVERITY_DIGEST + SHA256_DIGEST_SIZE];
+char digest[SIZEOF_STRUCT_FSVERITY_DIGEST + SHA256_DIGEST_SIZE];
+__u32 monitored_pid;
+__u32 got_fsverity;
+__u32 digest_matches;
+
+SEC("lsm.s/file_open")
+int BPF_PROG(test_file_open, struct file *f)
+{
+	struct bpf_dynptr digest_ptr;
+	__u32 pid;
+	int ret;
+	int i;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	bpf_dynptr_from_mem(digest, sizeof(digest), 0, &digest_ptr);
+	ret = bpf_get_fsverity_digest(f, &digest_ptr);
+	if (ret < 0)
+		return 0;
+	got_fsverity = 1;
+
+	for (i = 0; i < (int)sizeof(digest); i++) {
+		if (digest[i] != expected_digest[i])
+			return 0;
+	}
+
+	digest_matches = 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c
new file mode 100644
index 000000000000..b6a6eb279e54
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* Permit pretty deep stack traces */
+#define MAX_STACK_RAWTP 100
+struct stack_trace_t {
+	int pid;
+	int kern_stack_size;
+	int user_stack_size;
+	int user_stack_buildid_size;
+	__u64 kern_stack[MAX_STACK_RAWTP];
+	__u64 user_stack[MAX_STACK_RAWTP];
+	struct bpf_stack_build_id user_stack_buildid[MAX_STACK_RAWTP];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(__u32));
+} perfmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct stack_trace_t);
+} stackdata_map SEC(".maps");
+
+/* Allocate per-cpu space twice the needed. For the code below
+ *   usize = bpf_get_stack(ctx, raw_data, max_len, BPF_F_USER_STACK);
+ *   if (usize < 0)
+ *     return 0;
+ *   ksize = bpf_get_stack(ctx, raw_data + usize, max_len - usize, 0);
+ *
+ * If we have value_size = MAX_STACK_RAWTP * sizeof(__u64),
+ * verifier will complain that access "raw_data + usize"
+ * with size "max_len - usize" may be out of bound.
+ * The maximum "raw_data + usize" is "raw_data + max_len"
+ * and the maximum "max_len - usize" is "max_len", verifier
+ * concludes that the maximum buffer access range is
+ * "raw_data[0...max_len * 2 - 1]" and hence reject the program.
+ *
+ * Doubling the to-be-used max buffer size can fix this verifier
+ * issue and avoid complicated C programming massaging.
+ * This is an acceptable workaround since there is one entry here.
+ */
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64[2 * MAX_STACK_RAWTP]);
+} rawdata_map SEC(".maps");
+
+SEC("raw_tracepoint/sys_enter")
+int bpf_prog1(void *ctx)
+{
+	int max_len, max_buildid_len, total_size;
+	struct stack_trace_t *data;
+	long usize, ksize;
+	void *raw_data;
+	__u32 key = 0;
+
+	data = bpf_map_lookup_elem(&stackdata_map, &key);
+	if (!data)
+		return 0;
+
+	max_len = MAX_STACK_RAWTP * sizeof(__u64);
+	max_buildid_len = MAX_STACK_RAWTP * sizeof(struct bpf_stack_build_id);
+	data->pid = bpf_get_current_pid_tgid();
+	data->kern_stack_size = bpf_get_stack(ctx, data->kern_stack,
+					      max_len, 0);
+	data->user_stack_size = bpf_get_stack(ctx, data->user_stack, max_len,
+					    BPF_F_USER_STACK);
+	data->user_stack_buildid_size = bpf_get_stack(
+		ctx, data->user_stack_buildid, max_buildid_len,
+		BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
+	bpf_perf_event_output(ctx, &perfmap, 0, data, sizeof(*data));
+
+	/* write both kernel and user stacks to the same buffer */
+	raw_data = bpf_map_lookup_elem(&rawdata_map, &key);
+	if (!raw_data)
+		return 0;
+
+	usize = bpf_get_stack(ctx, raw_data, max_len, BPF_F_USER_STACK);
+	if (usize < 0)
+		return 0;
+
+	ksize = bpf_get_stack(ctx, raw_data + usize, max_len - usize, 0);
+	if (ksize < 0)
+		return 0;
+
+	total_size = usize + ksize;
+	if (total_size > 0 && total_size <= max_len)
+		bpf_perf_event_output(ctx, &perfmap, 0, raw_data, total_size);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c
new file mode 100644
index 000000000000..8941a41c2a55
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_get_stack_rawtp_err.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define MAX_STACK_RAWTP 10
+
+SEC("raw_tracepoint/sys_enter")
+int bpf_prog2(void *ctx)
+{
+	__u64 stack[MAX_STACK_RAWTP];
+	int error;
+
+	/* set all the flags which should return -EINVAL */
+	error = bpf_get_stack(ctx, stack, 0, -1);
+	if (error < 0)
+		goto loop;
+
+	return error;
+loop:
+	while (1) {
+		error++;
+	}
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_get_xattr.c b/tools/testing/selftests/bpf/progs/test_get_xattr.c
new file mode 100644
index 000000000000..54305f4c9f2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_get_xattr.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u32 monitored_pid;
+__u32 found_xattr_from_file;
+__u32 found_xattr_from_dentry;
+
+static const char expected_value[] = "hello";
+char value1[32];
+char value2[32];
+
+/* Matches caller of test_get_xattr() in prog_tests/fs_kfuncs.c */
+static const char xattr_names[][64] = {
+	/* The following work. */
+	"user.kfuncs",
+	"security.bpf.xxx",
+
+	/* The following do not work. */
+	"security.bpf",
+	"security.selinux"
+};
+
+SEC("lsm.s/file_open")
+int BPF_PROG(test_file_open, struct file *f)
+{
+	struct bpf_dynptr value_ptr;
+	__u32 pid;
+	int ret, i;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	bpf_dynptr_from_mem(value1, sizeof(value1), 0, &value_ptr);
+
+	for (i = 0; i < ARRAY_SIZE(xattr_names); i++) {
+		ret = bpf_get_file_xattr(f, xattr_names[i], &value_ptr);
+		if (ret == sizeof(expected_value))
+			break;
+	}
+	if (ret != sizeof(expected_value))
+		return 0;
+	if (bpf_strncmp(value1, ret, expected_value))
+		return 0;
+	found_xattr_from_file = 1;
+	return 0;
+}
+
+SEC("lsm.s/inode_getxattr")
+int BPF_PROG(test_inode_getxattr, struct dentry *dentry, char *name)
+{
+	struct bpf_dynptr value_ptr;
+	__u32 pid;
+	int ret, i;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	bpf_dynptr_from_mem(value2, sizeof(value2), 0, &value_ptr);
+
+	for (i = 0; i < ARRAY_SIZE(xattr_names); i++) {
+		ret = bpf_get_dentry_xattr(dentry, xattr_names[i], &value_ptr);
+		if (ret == sizeof(expected_value))
+			break;
+	}
+	if (ret != sizeof(expected_value))
+		return 0;
+	if (bpf_strncmp(value2, ret, expected_value))
+		return 0;
+	found_xattr_from_dentry = 1;
+
+	/* return non-zero to fail getxattr from user space */
+	return -EINVAL;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_data.c b/tools/testing/selftests/bpf/progs/test_global_data.c
new file mode 100644
index 000000000000..719e314ef3e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_data.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Isovalent, Inc.
+
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+#include <string.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 11);
+	__type(key, __u32);
+	__type(value, __u64);
+} result_number SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 5);
+	__type(key, __u32);
+	const char (*value)[32];
+} result_string SEC(".maps");
+
+struct foo {
+	__u8  a;
+	__u32 b;
+	__u64 c;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 5);
+	__type(key, __u32);
+	__type(value, struct foo);
+} result_struct SEC(".maps");
+
+/* Relocation tests for __u64s. */
+static       __u64 num0;
+static       __u64 num1 = 42;
+static const __u64 num2 = 24;
+static       __u64 num3 = 0;
+static       __u64 num4 = 0xffeeff;
+static const __u64 num5 = 0xabab;
+static const __u64 num6 = 0xab;
+
+/* Relocation tests for strings. */
+static const char str0[32] = "abcdefghijklmnopqrstuvwxyz";
+static       char str1[32] = "abcdefghijklmnopqrstuvwxyz";
+static       char str2[32];
+
+/* Relocation tests for structs. */
+static const struct foo struct0 = {
+	.a = 42,
+	.b = 0xfefeefef,
+	.c = 0x1111111111111111ULL,
+};
+static struct foo struct1;
+static const struct foo struct2;
+static struct foo struct3 = {
+	.a = 41,
+	.b = 0xeeeeefef,
+	.c = 0x2111111111111111ULL,
+};
+
+#define test_reloc(map, num, var)					\
+	do {								\
+		__u32 key = num;					\
+		bpf_map_update_elem(&result_##map, &key, var, 0);	\
+	} while (0)
+
+SEC("tc")
+int load_static_data(struct __sk_buff *skb)
+{
+	static const __u64 bar = ~0;
+
+	test_reloc(number, 0, &num0);
+	test_reloc(number, 1, &num1);
+	test_reloc(number, 2, &num2);
+	test_reloc(number, 3, &num3);
+	test_reloc(number, 4, &num4);
+	test_reloc(number, 5, &num5);
+	num4 = 1234;
+	test_reloc(number, 6, &num4);
+	test_reloc(number, 7, &num0);
+	test_reloc(number, 8, &num6);
+
+	test_reloc(string, 0, str0);
+	test_reloc(string, 1, str1);
+	test_reloc(string, 2, str2);
+	str1[5] = 'x';
+	test_reloc(string, 3, str1);
+	__builtin_memcpy(&str2[2], "hello", sizeof("hello"));
+	test_reloc(string, 4, str2);
+
+	test_reloc(struct, 0, &struct0);
+	test_reloc(struct, 1, &struct1);
+	test_reloc(struct, 2, &struct2);
+	test_reloc(struct, 3, &struct3);
+
+	test_reloc(number,  9, &struct0.c);
+	test_reloc(number, 10, &bar);
+
+	return TC_ACT_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_global_func1.c b/tools/testing/selftests/bpf/progs/test_global_func1.c
new file mode 100644
index 000000000000..fc69ff18880d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func1.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_STACK 260
+
+static __attribute__ ((noinline))
+int f0(int var, struct __sk_buff *skb)
+{
+	asm volatile ("");
+
+	return skb->len;
+}
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return f0(0, skb) + skb->len;
+}
+
+int f3(int, struct __sk_buff *skb, int);
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return f1(skb) + f3(val, skb, 1);
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb, int var)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return skb->ifindex * val * var;
+}
+
+SEC("tc")
+__failure __msg("combined stack size of 3 calls is")
+int global_func1(struct __sk_buff *skb)
+{
+	return f0(1, skb) + f1(skb) + f2(2, skb) + f3(3, skb, 4);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func10.c b/tools/testing/selftests/bpf/progs/test_global_func10.c
new file mode 100644
index 000000000000..09d027bd3ea8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func10.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#if !defined(__clang__)
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+
+struct Small {
+	long x;
+};
+
+struct Big {
+	long x;
+	long y;
+};
+
+__noinline int foo(const struct Big *big)
+{
+	if (!big)
+		return 0;
+
+	return bpf_get_prandom_u32() < big->y;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("invalid read from stack")
+int global_func10(struct __sk_buff *skb)
+{
+	const struct Small small = {.x = skb->len };
+
+	return foo((struct Big *)&small) ? 1 : 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func11.c b/tools/testing/selftests/bpf/progs/test_global_func11.c
new file mode 100644
index 000000000000..283e036dc401
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func11.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct S {
+	int x;
+};
+
+__noinline int foo(const struct S *s)
+{
+	return s ? bpf_get_prandom_u32() < s->x : 0;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("Caller passes invalid args into func#1")
+int global_func11(struct __sk_buff *skb)
+{
+	return foo((const void *)skb);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func12.c b/tools/testing/selftests/bpf/progs/test_global_func12.c
new file mode 100644
index 000000000000..6e03d42519a6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func12.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct S {
+	int x;
+};
+
+__noinline int foo(const struct S *s)
+{
+	return bpf_get_prandom_u32() < s->x;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("invalid mem access 'mem_or_null'")
+int global_func12(struct __sk_buff *skb)
+{
+	const struct S s = {.x = skb->len };
+
+	foo(&s);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func13.c b/tools/testing/selftests/bpf/progs/test_global_func13.c
new file mode 100644
index 000000000000..02ea80da75b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func13.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct S {
+	int x;
+};
+
+__noinline int foo(const struct S *s)
+{
+	if (s)
+		return bpf_get_prandom_u32() < s->x;
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("Caller passes invalid args into func#1")
+int global_func13(struct __sk_buff *skb)
+{
+	const struct S *s = (const struct S *)(0xbedabeda);
+
+	return foo(s);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func14.c b/tools/testing/selftests/bpf/progs/test_global_func14.c
new file mode 100644
index 000000000000..33b7d5efd7b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func14.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct S;
+
+__noinline int foo(const struct S *s)
+{
+	if (s)
+		return bpf_get_prandom_u32() < *(const int *) s;
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("reference type('FWD S') size cannot be determined")
+int global_func14(struct __sk_buff *skb)
+{
+
+	return foo(NULL);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func15.c b/tools/testing/selftests/bpf/progs/test_global_func15.c
new file mode 100644
index 000000000000..201cc000b3f4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func15.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline int foo(unsigned int *v)
+{
+	if (v)
+		*v = bpf_get_prandom_u32();
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+__failure __msg("At program exit the register R0 has ")
+int global_func15(struct __sk_buff *skb)
+{
+	unsigned int v = 1;
+
+	foo(&v);
+
+	return v;
+}
+
+SEC("cgroup_skb/ingress")
+__log_level(2) __flag(BPF_F_TEST_STATE_FREQ)
+__failure
+/* check that fallthrough code path marks r0 as precise */
+__msg("mark_precise: frame0: regs=r0 stack= before 2: (b7) r0 = 1")
+/* check that branch code path marks r0 as precise */
+__msg("mark_precise: frame0: regs=r0 stack= before 0: (85) call bpf_get_prandom_u32#7")
+__msg("At program exit the register R0 has ")
+__naked int global_func15_tricky_pruning(void)
+{
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"if r0 s> 1000 goto 1f;"
+		"r0 = 1;"
+	"1:"
+		"goto +0;" /* checkpoint */
+		/* cgroup_skb/ingress program is expected to return [0, 1]
+		 * values, so branch above makes sure that in a fallthrough
+		 * case we have a valid 1 stored in R0 register, but in
+		 * a branch case we assign some random value to R0.  So if
+		 * there is something wrong with precision tracking for R0 at
+		 * program exit, we might erroneously prune branch case,
+		 * because R0 in fallthrough case is imprecise (and thus any
+		 * value is valid from POV of verifier is_state_equal() logic)
+		 */
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32)
+		: __clobber_common
+	);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func16.c b/tools/testing/selftests/bpf/progs/test_global_func16.c
new file mode 100644
index 000000000000..e3e64bc472cd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func16.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline int foo(int (*arr)[10])
+{
+	if (arr)
+		return (*arr)[9];
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+__success
+int global_func16(struct __sk_buff *skb)
+{
+	int array[10];
+
+	const int rv = foo(&array);
+
+	return rv ? 1 : 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func17.c b/tools/testing/selftests/bpf/progs/test_global_func17.c
new file mode 100644
index 000000000000..5de44b09e8ec
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func17.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline int foo(int *p)
+{
+	barrier_var(p);
+	return p ? (*p = 42) : 0;
+}
+
+const volatile int i;
+
+SEC("tc")
+__failure __msg("Caller passes invalid args into func#1")
+int global_func17(struct __sk_buff *skb)
+{
+	return foo((int *)&i);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func2.c b/tools/testing/selftests/bpf/progs/test_global_func2.c
new file mode 100644
index 000000000000..2beab9c3b68a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func2.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_STACK (512 - 3 * 32)
+
+static __attribute__ ((noinline))
+int f0(int var, struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return f0(0, skb) + skb->len;
+}
+
+int f3(int, struct __sk_buff *skb, int);
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	return f1(skb) + f3(val, skb, 1);
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb, int var)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return skb->ifindex * val * var;
+}
+
+SEC("tc")
+__success
+int global_func2(struct __sk_buff *skb)
+{
+	return f0(1, skb) + f1(skb) + f2(2, skb) + f3(3, skb, 4);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func3.c b/tools/testing/selftests/bpf/progs/test_global_func3.c
new file mode 100644
index 000000000000..142b682d3c2f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func3.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	return f1(skb) + val;
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb, int var)
+{
+	return f2(var, skb) + val;
+}
+
+__attribute__ ((noinline))
+int f4(struct __sk_buff *skb)
+{
+	return f3(1, skb, 2);
+}
+
+__attribute__ ((noinline))
+int f5(struct __sk_buff *skb)
+{
+	return f4(skb);
+}
+
+__attribute__ ((noinline))
+int f6(struct __sk_buff *skb)
+{
+	return f5(skb);
+}
+
+__attribute__ ((noinline))
+int f7(struct __sk_buff *skb)
+{
+	return f6(skb);
+}
+
+__attribute__ ((noinline))
+int f8(struct __sk_buff *skb)
+{
+	return f7(skb);
+}
+
+SEC("tc")
+__failure __msg("the call stack of 8 frames")
+int global_func3(struct __sk_buff *skb)
+{
+	return f8(skb);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func4.c b/tools/testing/selftests/bpf/progs/test_global_func4.c
new file mode 100644
index 000000000000..1733d87ad3f3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func4.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	return f1(skb) + val;
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb, int var)
+{
+	return f2(var, skb) + val;
+}
+
+__attribute__ ((noinline))
+int f4(struct __sk_buff *skb)
+{
+	return f3(1, skb, 2);
+}
+
+__attribute__ ((noinline))
+int f5(struct __sk_buff *skb)
+{
+	return f4(skb);
+}
+
+__attribute__ ((noinline))
+int f6(struct __sk_buff *skb)
+{
+	return f5(skb);
+}
+
+__attribute__ ((noinline))
+int f7(struct __sk_buff *skb)
+{
+	return f6(skb);
+}
+
+SEC("tc")
+__success
+int global_func4(struct __sk_buff *skb)
+{
+	return f7(skb);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func5.c b/tools/testing/selftests/bpf/progs/test_global_func5.c
new file mode 100644
index 000000000000..257c0569ff98
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func5.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+int f3(int, struct __sk_buff *skb);
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	return f1(skb) + f3(val, (void *)&val); /* type mismatch */
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb)
+{
+	return skb->ifindex * val;
+}
+
+SEC("tc")
+__failure __msg("expects pointer to ctx")
+int global_func5(struct __sk_buff *skb)
+{
+	return f1(skb) + f2(2, skb) + f3(3, skb);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func6.c b/tools/testing/selftests/bpf/progs/test_global_func6.c
new file mode 100644
index 000000000000..46c38c8f2cf0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func6.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__attribute__ ((noinline))
+int f1(struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+int f3(int, struct __sk_buff *skb);
+
+__attribute__ ((noinline))
+int f2(int val, struct __sk_buff *skb)
+{
+	return f1(skb) + f3(val, skb + 1); /* type mismatch */
+}
+
+__attribute__ ((noinline))
+int f3(int val, struct __sk_buff *skb)
+{
+	return skb->ifindex * val;
+}
+
+SEC("tc")
+__failure __msg("modified ctx ptr R2")
+int global_func6(struct __sk_buff *skb)
+{
+	return f1(skb) + f2(2, skb) + f3(3, skb);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func7.c b/tools/testing/selftests/bpf/progs/test_global_func7.c
new file mode 100644
index 000000000000..f182febfde3c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func7.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__attribute__ ((noinline))
+void foo(struct __sk_buff *skb)
+{
+	skb->tc_index = 0;
+}
+
+SEC("tc")
+__failure __msg("foo() doesn't return scalar")
+int global_func7(struct __sk_buff *skb)
+{
+	foo(skb);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func8.c b/tools/testing/selftests/bpf/progs/test_global_func8.c
new file mode 100644
index 000000000000..9b9c57fa2dd3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func8.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2020 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+__noinline int foo(struct __sk_buff *skb)
+{
+	return bpf_get_prandom_u32();
+}
+
+SEC("cgroup_skb/ingress")
+__success
+int global_func8(struct __sk_buff *skb)
+{
+	if (!foo(skb))
+		return 0;
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func9.c b/tools/testing/selftests/bpf/progs/test_global_func9.c
new file mode 100644
index 000000000000..1f2cb0159b8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func9.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct S {
+	int x;
+};
+
+struct C {
+	int x;
+	int y;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct S);
+} map SEC(".maps");
+
+enum E {
+	E_ITEM
+};
+
+static int global_data_x = 100;
+static int volatile global_data_y = 500;
+
+__noinline int foo(const struct S *s)
+{
+	if (s)
+		return bpf_get_prandom_u32() < s->x;
+
+	return 0;
+}
+
+__noinline int bar(int *x)
+{
+	if (x)
+		*x &= bpf_get_prandom_u32();
+
+	return 0;
+}
+__noinline int baz(volatile int *x)
+{
+	if (x)
+		*x &= bpf_get_prandom_u32();
+
+	return 0;
+}
+
+__noinline int qux(enum E *e)
+{
+	if (e)
+		return *e;
+
+	return 0;
+}
+
+__noinline int quux(int (*arr)[10])
+{
+	if (arr)
+		return (*arr)[9];
+
+	return 0;
+}
+
+__noinline int quuz(int **p)
+{
+	if (p)
+		*p = NULL;
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+__success
+int global_func9(struct __sk_buff *skb)
+{
+	int result = 0;
+
+	{
+		const struct S s = {.x = skb->len };
+
+		result |= foo(&s);
+	}
+
+	{
+		const __u32 key = 1;
+		const struct S *s = bpf_map_lookup_elem(&map, &key);
+
+		result |= foo(s);
+	}
+
+	{
+		const struct C c = {.x = skb->len, .y = skb->family };
+
+		result |= foo((const struct S *)&c);
+	}
+
+	{
+		result |= foo(NULL);
+	}
+
+	{
+		bar(&result);
+		bar(&global_data_x);
+	}
+
+	{
+		result |= baz(&global_data_y);
+	}
+
+	{
+		enum E e = E_ITEM;
+
+		result |= qux(&e);
+	}
+
+	{
+		int array[10] = {0};
+
+		result |= quux(&array);
+	}
+
+	{
+		int *p;
+
+		result |= quuz(&p);
+	}
+
+	return result ? 1 : 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_func_args.c b/tools/testing/selftests/bpf/progs/test_global_func_args.c
new file mode 100644
index 000000000000..e712bf77daae
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func_args.c
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct S {
+	int v;
+};
+
+struct S global_variable = {};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 7);
+	__type(key, __u32);
+	__type(value, int);
+} values SEC(".maps");
+
+static void save_value(__u32 index, int value)
+{
+	bpf_map_update_elem(&values, &index, &value, 0);
+}
+
+__noinline int foo(__u32 index, struct S *s)
+{
+	if (s) {
+		save_value(index, s->v);
+		return ++s->v;
+	}
+
+	save_value(index, 0);
+
+	return 1;
+}
+
+__noinline int bar(__u32 index, volatile struct S *s)
+{
+	if (s) {
+		save_value(index, s->v);
+		return ++s->v;
+	}
+
+	save_value(index, 0);
+
+	return 1;
+}
+
+__noinline int baz(struct S **s)
+{
+	if (s)
+		*s = 0;
+
+	return 0;
+}
+
+SEC("cgroup_skb/ingress")
+int test_cls(struct __sk_buff *skb)
+{
+	__u32 index = 0;
+
+	{
+		const int v = foo(index++, 0);
+
+		save_value(index++, v);
+	}
+
+	{
+		struct S s = { .v = 100 };
+
+		foo(index++, &s);
+		save_value(index++, s.v);
+	}
+
+	{
+		global_variable.v = 42;
+		bar(index++, &global_variable);
+		save_value(index++, global_variable.v);
+	}
+
+	{
+		struct S v, *p = &v;
+
+		baz(&p);
+		save_value(index++, !p);
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c b/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c
new file mode 100644
index 000000000000..143c8a4852bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_func_ctx_args.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+static long stack[256];
+
+/*
+ * KPROBE contexts
+ */
+
+__weak int kprobe_typedef_ctx_subprog(bpf_user_pt_regs_t *ctx)
+{
+	return bpf_get_stack(ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?kprobe")
+__success
+int kprobe_typedef_ctx(void *ctx)
+{
+	return kprobe_typedef_ctx_subprog(ctx);
+}
+
+/* s390x defines:
+ *
+ * typedef user_pt_regs bpf_user_pt_regs_t;
+ * typedef struct { ... } user_pt_regs;
+ *
+ * And so "canonical" underlying struct type is anonymous.
+ * So on s390x only valid ways to have PTR_TO_CTX argument in global subprogs
+ * are:
+ *   - bpf_user_pt_regs_t *ctx (typedef);
+ *   - struct bpf_user_pt_regs_t *ctx (backwards compatible struct hack);
+ *   - void *ctx __arg_ctx (arg:ctx tag)
+ *
+ * Other architectures also allow using underlying struct types (e.g.,
+ * `struct pt_regs *ctx` for x86-64)
+ */
+#ifndef bpf_target_s390
+
+#define pt_regs_struct_t typeof(*(__PT_REGS_CAST((struct pt_regs *)NULL)))
+
+__weak int kprobe_struct_ctx_subprog(pt_regs_struct_t *ctx)
+{
+	return bpf_get_stack((void *)ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?kprobe")
+__success
+int kprobe_resolved_ctx(void *ctx)
+{
+	return kprobe_struct_ctx_subprog(ctx);
+}
+
+#endif
+
+/* this is current hack to make this work on old kernels */
+struct bpf_user_pt_regs_t {};
+
+__weak int kprobe_workaround_ctx_subprog(struct bpf_user_pt_regs_t *ctx)
+{
+	return bpf_get_stack(ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?kprobe")
+__success
+int kprobe_workaround_ctx(void *ctx)
+{
+	return kprobe_workaround_ctx_subprog(ctx);
+}
+
+/*
+ * RAW_TRACEPOINT contexts
+ */
+
+__weak int raw_tp_ctx_subprog(struct bpf_raw_tracepoint_args *ctx)
+{
+	return bpf_get_stack(ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?raw_tp")
+__success
+int raw_tp_ctx(void *ctx)
+{
+	return raw_tp_ctx_subprog(ctx);
+}
+
+/*
+ * RAW_TRACEPOINT_WRITABLE contexts
+ */
+
+__weak int raw_tp_writable_ctx_subprog(struct bpf_raw_tracepoint_args *ctx)
+{
+	return bpf_get_stack(ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?raw_tp")
+__success
+int raw_tp_writable_ctx(void *ctx)
+{
+	return raw_tp_writable_ctx_subprog(ctx);
+}
+
+/*
+ * PERF_EVENT contexts
+ */
+
+__weak int perf_event_ctx_subprog(struct bpf_perf_event_data *ctx)
+{
+	return bpf_get_stack(ctx, &stack, sizeof(stack), 0);
+}
+
+SEC("?perf_event")
+__success
+int perf_event_ctx(void *ctx)
+{
+	return perf_event_ctx_subprog(ctx);
+}
+
+/* this global subprog can be now called from many types of entry progs, each
+ * with different context type
+ */
+__weak int subprog_ctx_tag(void *ctx __arg_ctx)
+{
+	return bpf_get_stack(ctx, stack, sizeof(stack), 0);
+}
+
+struct my_struct { int x; };
+
+__weak int subprog_multi_ctx_tags(void *ctx1 __arg_ctx,
+				  struct my_struct *mem,
+				  void *ctx2 __arg_ctx)
+{
+	if (!mem)
+		return 0;
+
+	return bpf_get_stack(ctx1, stack, sizeof(stack), 0) +
+	       mem->x +
+	       bpf_get_stack(ctx2, stack, sizeof(stack), 0);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+int arg_tag_ctx_raw_tp(void *ctx)
+{
+	struct my_struct x = { .x = 123 };
+
+	return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx);
+}
+
+SEC("?perf_event")
+__success __log_level(2)
+int arg_tag_ctx_perf(void *ctx)
+{
+	struct my_struct x = { .x = 123 };
+
+	return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx);
+}
+
+SEC("?kprobe")
+__success __log_level(2)
+int arg_tag_ctx_kprobe(void *ctx)
+{
+	struct my_struct x = { .x = 123 };
+
+	return subprog_ctx_tag(ctx) + subprog_multi_ctx_tags(ctx, &x, ctx);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_global_map_resize.c b/tools/testing/selftests/bpf/progs/test_global_map_resize.c
new file mode 100644
index 000000000000..ee65bad0436d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_global_map_resize.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* rodata section */
+const volatile pid_t pid;
+const volatile size_t bss_array_len;
+const volatile size_t data_array_len;
+
+/* bss section */
+int sum = 0;
+int array[1];
+
+/* custom data section */
+int my_array[1] SEC(".data.custom");
+
+/* custom data section which should NOT be resizable,
+ * since it contains a single var which is not an array
+ */
+int my_int SEC(".data.non_array");
+
+/* custom data section which should NOT be resizable,
+ * since its last var is not an array
+ */
+int my_array_first[1] SEC(".data.array_not_last");
+int my_int_last SEC(".data.array_not_last");
+
+int percpu_arr[1] SEC(".data.percpu_arr");
+
+/* at least one extern is included, to ensure that a specific
+ * regression is tested whereby resizing resulted in a free-after-use
+ * bug after type information is invalidated by the resize operation.
+ *
+ * There isn't a particularly good API to test for this specific condition,
+ * but by having externs for the resizing tests it will cover this path.
+ */
+extern int LINUX_KERNEL_VERSION __kconfig;
+long version_sink;
+
+SEC("tp/syscalls/sys_enter_getpid")
+int bss_array_sum(void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	/* this will be zero, we just rely on verifier not rejecting this */
+	sum = percpu_arr[bpf_get_smp_processor_id()];
+
+	for (size_t i = 0; i < bss_array_len; ++i)
+		sum += array[i];
+
+	/* see above; ensure this is not optimized out */
+	version_sink = LINUX_KERNEL_VERSION;
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getuid")
+int data_array_sum(void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	/* this will be zero, we just rely on verifier not rejecting this */
+	sum = percpu_arr[bpf_get_smp_processor_id()];
+
+	for (size_t i = 0; i < data_array_len; ++i)
+		sum += my_array[i];
+
+	/* see above; ensure this is not optimized out */
+	version_sink = LINUX_KERNEL_VERSION;
+
+	return 0;
+}
+
+SEC("struct_ops/test_1")
+int BPF_PROG(test_1)
+{
+	return 0;
+}
+
+struct bpf_testmod_ops {
+	int (*test_1)(void);
+};
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops st_ops_resize = {
+	.test_1 = (void *)test_1
+};
diff --git a/tools/testing/selftests/bpf/progs/test_hash_large_key.c b/tools/testing/selftests/bpf/progs/test_hash_large_key.c
new file mode 100644
index 000000000000..8b438128f46b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_hash_large_key.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 2);
+	__type(key, struct bigelement);
+	__type(value, __u32);
+} hash_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct bigelement);
+} key_map SEC(".maps");
+
+struct bigelement {
+	int a;
+	char b[4096];
+	long long c;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int bpf_hash_large_key_test(void *ctx)
+{
+	int zero = 0, value = 42;
+	struct bigelement *key;
+
+	key = bpf_map_lookup_elem(&key_map, &zero);
+	if (!key)
+		return 0;
+
+	key->c = 1;
+	if (bpf_map_update_elem(&hash_map, key, &value, BPF_ANY))
+		return 0;
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_helper_restricted.c b/tools/testing/selftests/bpf/progs/test_helper_restricted.c
new file mode 100644
index 000000000000..5715c569ec03
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_helper_restricted.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <time.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct timer {
+	struct bpf_timer t;
+};
+
+struct lock {
+	struct bpf_spin_lock l;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct timer);
+} timers SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct lock);
+} locks SEC(".maps");
+
+static int timer_cb(void *map, int *key, struct timer *timer)
+{
+	return 0;
+}
+
+static void timer_work(void)
+{
+	struct timer *timer;
+	const int key = 0;
+
+	timer  = bpf_map_lookup_elem(&timers, &key);
+	if (timer) {
+		bpf_timer_init(&timer->t, &timers, CLOCK_MONOTONIC);
+		bpf_timer_set_callback(&timer->t, timer_cb);
+		bpf_timer_start(&timer->t, 10E9, 0);
+		bpf_timer_cancel(&timer->t);
+	}
+}
+
+static void spin_lock_work(void)
+{
+	const int key = 0;
+	struct lock *lock;
+
+	lock = bpf_map_lookup_elem(&locks, &key);
+	if (lock) {
+		bpf_spin_lock(&lock->l);
+		bpf_spin_unlock(&lock->l);
+	}
+}
+
+SEC("?raw_tp/sys_enter")
+int raw_tp_timer(void *ctx)
+{
+	timer_work();
+
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int tp_timer(void *ctx)
+{
+	timer_work();
+
+	return 0;
+}
+
+SEC("?kprobe")
+int kprobe_timer(void *ctx)
+{
+	timer_work();
+
+	return 0;
+}
+
+SEC("?perf_event")
+int perf_event_timer(void *ctx)
+{
+	timer_work();
+
+	return 0;
+}
+
+SEC("?raw_tp/sys_enter")
+int raw_tp_spin_lock(void *ctx)
+{
+	spin_lock_work();
+
+	return 0;
+}
+
+SEC("?tp/syscalls/sys_enter_nanosleep")
+int tp_spin_lock(void *ctx)
+{
+	spin_lock_work();
+
+	return 0;
+}
+
+SEC("?kprobe")
+int kprobe_spin_lock(void *ctx)
+{
+	spin_lock_work();
+
+	return 0;
+}
+
+SEC("?perf_event")
+int perf_event_spin_lock(void *ctx)
+{
+	spin_lock_work();
+
+	return 0;
+}
+
+const char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_jhash.h b/tools/testing/selftests/bpf/progs/test_jhash.h
new file mode 100644
index 000000000000..ef53559bbbdf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_jhash.h
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <features.h>
+
+typedef unsigned int u32;
+
+static __always_inline u32 rol32(u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
+#define __jhash_mix(a, b, c)			\
+{						\
+	a -= c;  a ^= rol32(c, 4);  c += b;	\
+	b -= a;  b ^= rol32(a, 6);  a += c;	\
+	c -= b;  c ^= rol32(b, 8);  b += a;	\
+	a -= c;  a ^= rol32(c, 16); c += b;	\
+	b -= a;  b ^= rol32(a, 19); a += c;	\
+	c -= b;  c ^= rol32(b, 4);  b += a;	\
+}
+
+#define __jhash_final(a, b, c)			\
+{						\
+	c ^= b; c -= rol32(b, 14);		\
+	a ^= c; a -= rol32(c, 11);		\
+	b ^= a; b -= rol32(a, 25);		\
+	c ^= b; c -= rol32(b, 16);		\
+	a ^= c; a -= rol32(c, 4);		\
+	b ^= a; b -= rol32(a, 14);		\
+	c ^= b; c -= rol32(b, 24);		\
+}
+
+#define JHASH_INITVAL		0xdeadbeef
+
+static ATTR
+u32 jhash(const void *key, u32 length, u32 initval)
+{
+	u32 a, b, c;
+	const unsigned char *k = key;
+
+	a = b = c = JHASH_INITVAL + length + initval;
+
+	while (length > 12) {
+		a += *(volatile u32 *)(k);
+		b += *(volatile u32 *)(k + 4);
+		c += *(volatile u32 *)(k + 8);
+		__jhash_mix(a, b, c);
+		length -= 12;
+		k += 12;
+	}
+	switch (length) {
+	case 12: c += (u32)k[11]<<24;
+	case 11: c += (u32)k[10]<<16;
+	case 10: c += (u32)k[9]<<8;
+	case 9:  c += k[8];
+	case 8:  b += (u32)k[7]<<24;
+	case 7:  b += (u32)k[6]<<16;
+	case 6:  b += (u32)k[5]<<8;
+	case 5:  b += k[4];
+	case 4:  a += (u32)k[3]<<24;
+	case 3:  a += (u32)k[2]<<16;
+	case 2:  a += (u32)k[1]<<8;
+	case 1:  a += k[0];
+		 c ^= a;
+		 __jhash_final(a, b, c);
+	case 0: /* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
+
+static __always_inline u32 jhash2(const u32 *k, u32 length, u32 initval)
+{
+	u32 a, b, c;
+
+	/* Set up the internal state */
+	a = b = c = JHASH_INITVAL + (length<<2) + initval;
+
+	/* Handle most of the key */
+	while (length > 3) {
+		a += k[0];
+		b += k[1];
+		c += k[2];
+		__jhash_mix(a, b, c);
+		length -= 3;
+		k += 3;
+	}
+
+	/* Handle the last 3 u32's */
+	switch (length) {
+	case 3: c += k[2];
+	case 2: b += k[1];
+	case 1: a += k[0];
+		__jhash_final(a, b, c);
+		break;
+	case 0:	/* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_kernel_flag.c b/tools/testing/selftests/bpf/progs/test_kernel_flag.c
new file mode 100644
index 000000000000..b45fab3be352
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_kernel_flag.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2025 Microsoft Corporation
+ *
+ * Author: Blaise Boscaccy <bboscaccy@linux.microsoft.com>
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 monitored_tid;
+
+SEC("lsm.s/bpf")
+int BPF_PROG(bpf, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	__u32 tid;
+
+	tid = bpf_get_current_pid_tgid() & 0xFFFFFFFF;
+	if (!kernel || tid != monitored_tid)
+		return 0;
+	else
+		return -EINVAL;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_kfunc_dynptr_param.c b/tools/testing/selftests/bpf/progs/test_kfunc_dynptr_param.c
new file mode 100644
index 000000000000..061befb004c2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_kfunc_dynptr_param.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+extern struct bpf_key *bpf_lookup_system_key(__u64 id) __ksym;
+extern void bpf_key_put(struct bpf_key *key) __ksym;
+extern int bpf_verify_pkcs7_signature(struct bpf_dynptr *data_ptr,
+				      struct bpf_dynptr *sig_ptr,
+				      struct bpf_key *trusted_keyring) __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} array_map SEC(".maps");
+
+int err, pid;
+
+char _license[] SEC("license") = "GPL";
+
+SEC("?lsm.s/bpf")
+__failure __msg("cannot pass in dynptr at an offset=-8")
+int BPF_PROG(not_valid_dynptr, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	unsigned long val;
+
+	return bpf_verify_pkcs7_signature((struct bpf_dynptr *)&val,
+					  (struct bpf_dynptr *)&val, NULL);
+}
+
+SEC("?lsm.s/bpf")
+__failure __msg("arg#0 expected pointer to stack or const struct bpf_dynptr")
+int BPF_PROG(not_ptr_to_stack, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	unsigned long val = 0;
+
+	return bpf_verify_pkcs7_signature((struct bpf_dynptr *)val,
+					  (struct bpf_dynptr *)val, NULL);
+}
+
+SEC("lsm.s/bpf")
+int BPF_PROG(dynptr_data_null, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	struct bpf_key *trusted_keyring;
+	struct bpf_dynptr ptr;
+	__u32 *value;
+	int ret, zero = 0;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	value = bpf_map_lookup_elem(&array_map, &zero);
+	if (!value)
+		return 0;
+
+	/* Pass invalid flags. */
+	ret = bpf_dynptr_from_mem(value, sizeof(*value), ((__u64)~0ULL), &ptr);
+	if (ret != -EINVAL)
+		return 0;
+
+	trusted_keyring = bpf_lookup_system_key(0);
+	if (!trusted_keyring)
+		return 0;
+
+	err = bpf_verify_pkcs7_signature(&ptr, &ptr, trusted_keyring);
+
+	bpf_key_put(trusted_keyring);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c b/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c
new file mode 100644
index 000000000000..0ad1bf1ede8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_kfunc_param_nullable.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_kfuncs.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+SEC("tc")
+int kfunc_dynptr_nullable_test1(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_kfunc_dynptr_test(&data, NULL);
+
+	return 0;
+}
+
+SEC("tc")
+int kfunc_dynptr_nullable_test2(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_kfunc_dynptr_test(&data, &data);
+
+	return 0;
+}
+
+SEC("tc")
+__failure __msg("expected pointer to stack or const struct bpf_dynptr")
+int kfunc_dynptr_nullable_test3(struct __sk_buff *skb)
+{
+	struct bpf_dynptr data;
+
+	bpf_dynptr_from_skb(skb, 0, &data);
+	bpf_kfunc_dynptr_test(NULL, &data);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms.c b/tools/testing/selftests/bpf/progs/test_ksyms.c
new file mode 100644
index 000000000000..6c9cbb5a3bdf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__u64 out__bpf_link_fops = -1;
+__u64 out__bpf_link_fops1 = -1;
+__u64 out__btf_size = -1;
+__u64 out__per_cpu_start = -1;
+
+extern const void bpf_link_fops __ksym;
+extern const void __start_BTF __ksym;
+extern const void __stop_BTF __ksym;
+extern const void __per_cpu_start __ksym;
+/* non-existing symbol, weak, default to zero */
+extern const void bpf_link_fops1 __ksym __weak;
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	out__bpf_link_fops = (__u64)&bpf_link_fops;
+	out__btf_size = (__u64)(&__stop_BTF - &__start_BTF);
+	out__per_cpu_start = (__u64)&__per_cpu_start;
+
+	out__bpf_link_fops1 = (__u64)&bpf_link_fops1;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_btf.c b/tools/testing/selftests/bpf/progs/test_ksyms_btf.c
new file mode 100644
index 000000000000..bb8ea9270f29
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_btf.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Google */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+__u64 out__runqueues_addr = -1;
+__u64 out__bpf_prog_active_addr = -1;
+
+__u32 out__rq_cpu = -1; /* percpu struct fields */
+int out__bpf_prog_active = -1; /* percpu int */
+
+__u32 out__this_rq_cpu = -1;
+int out__this_bpf_prog_active = -1;
+
+__u32 out__cpu_0_rq_cpu = -1; /* cpu_rq(0)->cpu */
+
+extern const struct rq runqueues __ksym; /* struct type global var. */
+extern const int bpf_prog_active __ksym; /* int type global var. */
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	struct rq *rq;
+	int *active;
+	__u32 cpu;
+
+	out__runqueues_addr = (__u64)&runqueues;
+	out__bpf_prog_active_addr = (__u64)&bpf_prog_active;
+
+	cpu = bpf_get_smp_processor_id();
+
+	/* test bpf_per_cpu_ptr() */
+	rq = (struct rq *)bpf_per_cpu_ptr(&runqueues, cpu);
+	if (rq)
+		out__rq_cpu = rq->cpu;
+	active = (int *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+	if (active)
+		out__bpf_prog_active = *active;
+
+	rq = (struct rq *)bpf_per_cpu_ptr(&runqueues, 0);
+	if (rq) /* should always be valid, but we can't spare the check. */
+		out__cpu_0_rq_cpu = rq->cpu;
+
+	/* test bpf_this_cpu_ptr */
+	rq = (struct rq *)bpf_this_cpu_ptr(&runqueues);
+	out__this_rq_cpu = rq->cpu;
+	active = (int *)bpf_this_cpu_ptr(&bpf_prog_active);
+	out__this_bpf_prog_active = *active;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_btf_null_check.c b/tools/testing/selftests/bpf/progs/test_ksyms_btf_null_check.c
new file mode 100644
index 000000000000..8bc8f7c637bc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_btf_null_check.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+extern const struct rq runqueues __ksym; /* struct type global var. */
+extern const int bpf_prog_active __ksym; /* int type global var. */
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	struct rq *rq;
+	int *active;
+	__u32 cpu;
+
+	cpu = bpf_get_smp_processor_id();
+	rq = (struct rq *)bpf_per_cpu_ptr(&runqueues, cpu);
+	active = (int *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+	if (active) {
+		/* READ_ONCE */
+		*(volatile int *)active;
+		/* !rq has not been tested, so verifier should reject. */
+		*(volatile int *)(&rq->cpu);
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c b/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c
new file mode 100644
index 000000000000..27109b877714
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_btf_write_check.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Google */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+extern const int bpf_prog_active __ksym; /* int type global var. */
+
+SEC("raw_tp/sys_enter")
+int handler1(const void *ctx)
+{
+	int *active;
+	__u32 cpu;
+
+	cpu = bpf_get_smp_processor_id();
+	active = (int *)bpf_per_cpu_ptr(&bpf_prog_active, cpu);
+	if (active) {
+		/* Kernel memory obtained from bpf_{per,this}_cpu_ptr
+		 * is read-only, should _not_ pass verification.
+		 */
+		/* WRITE_ONCE */
+		*(volatile int *)active = -1;
+	}
+
+	return 0;
+}
+
+__noinline int write_active(int *p)
+{
+	return p ? (*p = 42) : 0;
+}
+
+SEC("raw_tp/sys_enter")
+int handler2(const void *ctx)
+{
+	int *active;
+
+	active = bpf_this_cpu_ptr(&bpf_prog_active);
+	write_active(active);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_module.c b/tools/testing/selftests/bpf/progs/test_ksyms_module.c
new file mode 100644
index 000000000000..0650d918c096
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_module.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#define X_0(x)
+#define X_1(x) x X_0(x)
+#define X_2(x) x X_1(x)
+#define X_3(x) x X_2(x)
+#define X_4(x) x X_3(x)
+#define X_5(x) x X_4(x)
+#define X_6(x) x X_5(x)
+#define X_7(x) x X_6(x)
+#define X_8(x) x X_7(x)
+#define X_9(x) x X_8(x)
+#define X_10(x) x X_9(x)
+#define REPEAT_256(Y) X_2(X_10(X_10(Y))) X_5(X_10(Y)) X_6(Y)
+
+extern const int bpf_testmod_ksym_percpu __ksym;
+extern void bpf_testmod_test_mod_kfunc(int i) __ksym;
+extern void bpf_testmod_invalid_mod_kfunc(void) __ksym __weak;
+
+int out_bpf_testmod_ksym = 0;
+const volatile int x = 0;
+
+SEC("tc")
+int load(struct __sk_buff *skb)
+{
+	/* This will be kept by clang, but removed by verifier. Since it is
+	 * marked as __weak, libbpf and gen_loader don't error out if BTF ID
+	 * is not found for it, instead imm and off is set to 0 for it.
+	 */
+	if (x)
+		bpf_testmod_invalid_mod_kfunc();
+	bpf_testmod_test_mod_kfunc(42);
+	out_bpf_testmod_ksym = *(int *)bpf_this_cpu_ptr(&bpf_testmod_ksym_percpu);
+	return 0;
+}
+
+SEC("tc")
+int load_256(struct __sk_buff *skb)
+{
+	/* this will fail if kfunc doesn't reuse its own btf fd index */
+	REPEAT_256(bpf_testmod_test_mod_kfunc(42););
+	bpf_testmod_test_mod_kfunc(42);
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ksyms_weak.c b/tools/testing/selftests/bpf/progs/test_ksyms_weak.c
new file mode 100644
index 000000000000..d00268c91e19
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ksyms_weak.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test weak ksyms.
+ *
+ * Copyright (c) 2021 Google
+ */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+
+int out__existing_typed = -1;
+__u64 out__existing_typeless = -1;
+
+__u64 out__non_existent_typeless = -1;
+__u64 out__non_existent_typed = -1;
+
+/* existing weak symbols */
+
+/* test existing weak symbols can be resolved. */
+extern const struct rq runqueues __ksym __weak; /* typed */
+extern const void bpf_prog_active __ksym __weak; /* typeless */
+struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym __weak;
+void bpf_testmod_test_mod_kfunc(int i) __ksym __weak;
+
+
+/* non-existent weak symbols. */
+
+/* typeless symbols, default to zero. */
+extern const void bpf_link_fops1 __ksym __weak;
+
+/* typed symbols, default to zero. */
+extern const int bpf_link_fops2 __ksym __weak;
+void invalid_kfunc(void) __ksym __weak;
+
+SEC("raw_tp/sys_enter")
+int pass_handler(const void *ctx)
+{
+	struct rq *rq;
+
+	/* tests existing symbols. */
+	rq = (struct rq *)bpf_per_cpu_ptr(&runqueues, 0);
+	if (rq && bpf_ksym_exists(&runqueues))
+		out__existing_typed = rq->cpu;
+	out__existing_typeless = (__u64)&bpf_prog_active;
+
+	/* tests non-existent symbols. */
+	out__non_existent_typeless = (__u64)&bpf_link_fops1;
+
+	/* tests non-existent symbols. */
+	out__non_existent_typed = (__u64)&bpf_link_fops2;
+
+	if (&bpf_link_fops2) /* can't happen */
+		out__non_existent_typed = (__u64)bpf_per_cpu_ptr(&bpf_link_fops2, 0);
+
+	if (!bpf_ksym_exists(bpf_task_acquire))
+		/* dead code won't be seen by the verifier */
+		bpf_task_acquire(0);
+
+	if (!bpf_ksym_exists(bpf_testmod_test_mod_kfunc))
+		/* dead code won't be seen by the verifier */
+		bpf_testmod_test_mod_kfunc(0);
+
+	if (bpf_ksym_exists(invalid_kfunc))
+		/* dead code won't be seen by the verifier */
+		invalid_kfunc();
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_l4lb.c b/tools/testing/selftests/bpf/progs/test_l4lb.c
new file mode 100644
index 000000000000..c26057ec46dc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_l4lb.c
@@ -0,0 +1,471 @@
+/* Copyright (c) 2017 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/pkt_cls.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+#include "test_iptunnel_common.h"
+#include <bpf/bpf_endian.h>
+
+static inline __u32 rol32(__u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
+/* copy paste of jhash from kernel sources to make sure llvm
+ * can compile it into valid sequence of bpf instructions
+ */
+#define __jhash_mix(a, b, c)			\
+{						\
+	a -= c;  a ^= rol32(c, 4);  c += b;	\
+	b -= a;  b ^= rol32(a, 6);  a += c;	\
+	c -= b;  c ^= rol32(b, 8);  b += a;	\
+	a -= c;  a ^= rol32(c, 16); c += b;	\
+	b -= a;  b ^= rol32(a, 19); a += c;	\
+	c -= b;  c ^= rol32(b, 4);  b += a;	\
+}
+
+#define __jhash_final(a, b, c)			\
+{						\
+	c ^= b; c -= rol32(b, 14);		\
+	a ^= c; a -= rol32(c, 11);		\
+	b ^= a; b -= rol32(a, 25);		\
+	c ^= b; c -= rol32(b, 16);		\
+	a ^= c; a -= rol32(c, 4);		\
+	b ^= a; b -= rol32(a, 14);		\
+	c ^= b; c -= rol32(b, 24);		\
+}
+
+#define JHASH_INITVAL		0xdeadbeef
+
+typedef unsigned int u32;
+
+static inline u32 jhash(const void *key, u32 length, u32 initval)
+{
+	u32 a, b, c;
+	const unsigned char *k = key;
+
+	a = b = c = JHASH_INITVAL + length + initval;
+
+	while (length > 12) {
+		a += *(u32 *)(k);
+		b += *(u32 *)(k + 4);
+		c += *(u32 *)(k + 8);
+		__jhash_mix(a, b, c);
+		length -= 12;
+		k += 12;
+	}
+	switch (length) {
+	case 12: c += (u32)k[11]<<24;
+	case 11: c += (u32)k[10]<<16;
+	case 10: c += (u32)k[9]<<8;
+	case 9:  c += k[8];
+	case 8:  b += (u32)k[7]<<24;
+	case 7:  b += (u32)k[6]<<16;
+	case 6:  b += (u32)k[5]<<8;
+	case 5:  b += k[4];
+	case 4:  a += (u32)k[3]<<24;
+	case 3:  a += (u32)k[2]<<16;
+	case 2:  a += (u32)k[1]<<8;
+	case 1:  a += k[0];
+		 __jhash_final(a, b, c);
+	case 0: /* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
+
+static inline u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval)
+{
+	a += initval;
+	b += initval;
+	c += initval;
+	__jhash_final(a, b, c);
+	return c;
+}
+
+static inline u32 jhash_2words(u32 a, u32 b, u32 initval)
+{
+	return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+#define PCKT_FRAGMENTED 65343
+#define IPV4_HDR_LEN_NO_OPT 20
+#define IPV4_PLUS_ICMP_HDR 28
+#define IPV6_PLUS_ICMP_HDR 48
+#define RING_SIZE 2
+#define MAX_VIPS 12
+#define MAX_REALS 5
+#define CTL_MAP_SIZE 16
+#define CH_RINGS_SIZE (MAX_VIPS * RING_SIZE)
+#define F_IPV6 (1 << 0)
+#define F_HASH_NO_SRC_PORT (1 << 0)
+#define F_ICMP (1 << 0)
+#define F_SYN_SET (1 << 1)
+
+struct packet_description {
+	union {
+		__be32 src;
+		__be32 srcv6[4];
+	};
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	union {
+		__u32 ports;
+		__u16 port16[2];
+	};
+	__u8 proto;
+	__u8 flags;
+};
+
+struct ctl_value {
+	union {
+		__u64 value;
+		__u32 ifindex;
+		__u8 mac[6];
+	};
+};
+
+struct vip_meta {
+	__u32 flags;
+	__u32 vip_num;
+};
+
+struct real_definition {
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	__u8 flags;
+};
+
+struct vip_stats {
+	__u64 bytes;
+	__u64 pkts;
+};
+
+struct eth_hdr {
+	unsigned char eth_dest[ETH_ALEN];
+	unsigned char eth_source[ETH_ALEN];
+	unsigned short eth_proto;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, struct vip);
+	__type(value, struct vip_meta);
+} vip_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CH_RINGS_SIZE);
+	__type(key, __u32);
+	__type(value, __u32);
+} ch_rings SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, MAX_REALS);
+	__type(key, __u32);
+	__type(value, struct real_definition);
+} reals SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, __u32);
+	__type(value, struct vip_stats);
+} stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CTL_MAP_SIZE);
+	__type(key, __u32);
+	__type(value, struct ctl_value);
+} ctl_array SEC(".maps");
+
+static __always_inline __u32 get_packet_hash(struct packet_description *pckt,
+					     bool ipv6)
+{
+	if (ipv6)
+		return jhash_2words(jhash(pckt->srcv6, 16, MAX_VIPS),
+				    pckt->ports, CH_RINGS_SIZE);
+	else
+		return jhash_2words(pckt->src, pckt->ports, CH_RINGS_SIZE);
+}
+
+static __always_inline bool get_packet_dst(struct real_definition **real,
+					   struct packet_description *pckt,
+					   struct vip_meta *vip_info,
+					   bool is_ipv6)
+{
+	__u32 hash = get_packet_hash(pckt, is_ipv6) % RING_SIZE;
+	__u32 key = RING_SIZE * vip_info->vip_num + hash;
+	__u32 *real_pos;
+
+	real_pos = bpf_map_lookup_elem(&ch_rings, &key);
+	if (!real_pos)
+		return false;
+	key = *real_pos;
+	*real = bpf_map_lookup_elem(&reals, &key);
+	if (!(*real))
+		return false;
+	return true;
+}
+
+static __always_inline int parse_icmpv6(void *data, void *data_end, __u64 off,
+					struct packet_description *pckt)
+{
+	struct icmp6hdr *icmp_hdr;
+	struct ipv6hdr *ip6h;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (icmp_hdr->icmp6_type != ICMPV6_PKT_TOOBIG)
+		return TC_ACT_OK;
+	off += sizeof(struct icmp6hdr);
+	ip6h = data + off;
+	if (ip6h + 1 > data_end)
+		return TC_ACT_SHOT;
+	pckt->proto = ip6h->nexthdr;
+	pckt->flags |= F_ICMP;
+	memcpy(pckt->srcv6, ip6h->daddr.s6_addr32, 16);
+	memcpy(pckt->dstv6, ip6h->saddr.s6_addr32, 16);
+	return TC_ACT_UNSPEC;
+}
+
+static __always_inline int parse_icmp(void *data, void *data_end, __u64 off,
+				      struct packet_description *pckt)
+{
+	struct icmphdr *icmp_hdr;
+	struct iphdr *iph;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (icmp_hdr->type != ICMP_DEST_UNREACH ||
+	    icmp_hdr->code != ICMP_FRAG_NEEDED)
+		return TC_ACT_OK;
+	off += sizeof(struct icmphdr);
+	iph = data + off;
+	if (iph + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (iph->ihl != 5)
+		return TC_ACT_SHOT;
+	pckt->proto = iph->protocol;
+	pckt->flags |= F_ICMP;
+	pckt->src = iph->daddr;
+	pckt->dst = iph->saddr;
+	return TC_ACT_UNSPEC;
+}
+
+static __always_inline bool parse_udp(void *data, __u64 off, void *data_end,
+				      struct packet_description *pckt)
+{
+	struct udphdr *udp;
+	udp = data + off;
+
+	if (udp + 1 > data_end)
+		return false;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = udp->source;
+		pckt->port16[1] = udp->dest;
+	} else {
+		pckt->port16[0] = udp->dest;
+		pckt->port16[1] = udp->source;
+	}
+	return true;
+}
+
+static __always_inline bool parse_tcp(void *data, __u64 off, void *data_end,
+				      struct packet_description *pckt)
+{
+	struct tcphdr *tcp;
+
+	tcp = data + off;
+	if (tcp + 1 > data_end)
+		return false;
+
+	if (tcp->syn)
+		pckt->flags |= F_SYN_SET;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = tcp->source;
+		pckt->port16[1] = tcp->dest;
+	} else {
+		pckt->port16[0] = tcp->dest;
+		pckt->port16[1] = tcp->source;
+	}
+	return true;
+}
+
+static __always_inline int process_packet(void *data, __u64 off, void *data_end,
+					  bool is_ipv6, struct __sk_buff *skb)
+{
+	void *pkt_start = (void *)(long)skb->data;
+	struct packet_description pckt = {};
+	struct eth_hdr *eth = pkt_start;
+	struct bpf_tunnel_key tkey = {};
+	struct vip_stats *data_stats;
+	struct real_definition *dst;
+	struct vip_meta *vip_info;
+	struct ctl_value *cval;
+	__u32 v4_intf_pos = 1;
+	__u32 v6_intf_pos = 2;
+	struct ipv6hdr *ip6h;
+	struct vip vip = {};
+	struct iphdr *iph;
+	int tun_flag = 0;
+	__u16 pkt_bytes;
+	__u64 iph_len;
+	__u32 ifindex;
+	__u8 protocol;
+	__u32 vip_num;
+	int action;
+
+	tkey.tunnel_ttl = 64;
+	if (is_ipv6) {
+		ip6h = data + off;
+		if (ip6h + 1 > data_end)
+			return TC_ACT_SHOT;
+
+		iph_len = sizeof(struct ipv6hdr);
+		protocol = ip6h->nexthdr;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(ip6h->payload_len);
+		off += iph_len;
+		if (protocol == IPPROTO_FRAGMENT) {
+			return TC_ACT_SHOT;
+		} else if (protocol == IPPROTO_ICMPV6) {
+			action = parse_icmpv6(data, data_end, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV6_PLUS_ICMP_HDR;
+		} else {
+			memcpy(pckt.srcv6, ip6h->saddr.s6_addr32, 16);
+			memcpy(pckt.dstv6, ip6h->daddr.s6_addr32, 16);
+		}
+	} else {
+		iph = data + off;
+		if (iph + 1 > data_end)
+			return TC_ACT_SHOT;
+		if (iph->ihl != 5)
+			return TC_ACT_SHOT;
+
+		protocol = iph->protocol;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(iph->tot_len);
+		off += IPV4_HDR_LEN_NO_OPT;
+
+		if (iph->frag_off & PCKT_FRAGMENTED)
+			return TC_ACT_SHOT;
+		if (protocol == IPPROTO_ICMP) {
+			action = parse_icmp(data, data_end, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV4_PLUS_ICMP_HDR;
+		} else {
+			pckt.src = iph->saddr;
+			pckt.dst = iph->daddr;
+		}
+	}
+	protocol = pckt.proto;
+
+	if (protocol == IPPROTO_TCP) {
+		if (!parse_tcp(data, off, data_end, &pckt))
+			return TC_ACT_SHOT;
+	} else if (protocol == IPPROTO_UDP) {
+		if (!parse_udp(data, off, data_end, &pckt))
+			return TC_ACT_SHOT;
+	} else {
+		return TC_ACT_SHOT;
+	}
+
+	if (is_ipv6)
+		memcpy(vip.daddr.v6, pckt.dstv6, 16);
+	else
+		vip.daddr.v4 = pckt.dst;
+
+	vip.dport = pckt.port16[1];
+	vip.protocol = pckt.proto;
+	vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+	if (!vip_info) {
+		vip.dport = 0;
+		vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+		if (!vip_info)
+			return TC_ACT_SHOT;
+		pckt.port16[1] = 0;
+	}
+
+	if (vip_info->flags & F_HASH_NO_SRC_PORT)
+		pckt.port16[0] = 0;
+
+	if (!get_packet_dst(&dst, &pckt, vip_info, is_ipv6))
+		return TC_ACT_SHOT;
+
+	if (dst->flags & F_IPV6) {
+		cval = bpf_map_lookup_elem(&ctl_array, &v6_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		memcpy(tkey.remote_ipv6, dst->dstv6, 16);
+		tun_flag = BPF_F_TUNINFO_IPV6;
+	} else {
+		cval = bpf_map_lookup_elem(&ctl_array, &v4_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		tkey.remote_ipv4 = dst->dst;
+	}
+	vip_num = vip_info->vip_num;
+	data_stats = bpf_map_lookup_elem(&stats, &vip_num);
+	if (!data_stats)
+		return TC_ACT_SHOT;
+	data_stats->pkts++;
+	data_stats->bytes += pkt_bytes;
+	bpf_skb_set_tunnel_key(skb, &tkey, sizeof(tkey), tun_flag);
+	*(u32 *)eth->eth_dest = tkey.remote_ipv4;
+	return bpf_redirect(ifindex, 0);
+}
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct eth_hdr *eth = data;
+	__u32 eth_proto;
+	__u32 nh_off;
+
+	nh_off = sizeof(struct eth_hdr);
+	if (data + nh_off > data_end)
+		return TC_ACT_SHOT;
+	eth_proto = eth->eth_proto;
+	if (eth_proto == bpf_htons(ETH_P_IP))
+		return process_packet(data, nh_off, data_end, false, ctx);
+	else if (eth_proto == bpf_htons(ETH_P_IPV6))
+		return process_packet(data, nh_off, data_end, true, ctx);
+	else
+		return TC_ACT_SHOT;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c b/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c
new file mode 100644
index 000000000000..c8bc0c6947aa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_l4lb_noinline.c
@@ -0,0 +1,470 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/pkt_cls.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+#include "test_iptunnel_common.h"
+#include <bpf/bpf_endian.h>
+
+static __always_inline __u32 rol32(__u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
+/* copy paste of jhash from kernel sources to make sure llvm
+ * can compile it into valid sequence of bpf instructions
+ */
+#define __jhash_mix(a, b, c)			\
+{						\
+	a -= c;  a ^= rol32(c, 4);  c += b;	\
+	b -= a;  b ^= rol32(a, 6);  a += c;	\
+	c -= b;  c ^= rol32(b, 8);  b += a;	\
+	a -= c;  a ^= rol32(c, 16); c += b;	\
+	b -= a;  b ^= rol32(a, 19); a += c;	\
+	c -= b;  c ^= rol32(b, 4);  b += a;	\
+}
+
+#define __jhash_final(a, b, c)			\
+{						\
+	c ^= b; c -= rol32(b, 14);		\
+	a ^= c; a -= rol32(c, 11);		\
+	b ^= a; b -= rol32(a, 25);		\
+	c ^= b; c -= rol32(b, 16);		\
+	a ^= c; a -= rol32(c, 4);		\
+	b ^= a; b -= rol32(a, 14);		\
+	c ^= b; c -= rol32(b, 24);		\
+}
+
+#define JHASH_INITVAL		0xdeadbeef
+
+typedef unsigned int u32;
+
+static __noinline u32 jhash(const void *key, u32 length, u32 initval)
+{
+	u32 a, b, c;
+	const unsigned char *k = key;
+
+	a = b = c = JHASH_INITVAL + length + initval;
+
+	while (length > 12) {
+		a += *(u32 *)(k);
+		b += *(u32 *)(k + 4);
+		c += *(u32 *)(k + 8);
+		__jhash_mix(a, b, c);
+		length -= 12;
+		k += 12;
+	}
+	switch (length) {
+	case 12: c += (u32)k[11]<<24;
+	case 11: c += (u32)k[10]<<16;
+	case 10: c += (u32)k[9]<<8;
+	case 9:  c += k[8];
+	case 8:  b += (u32)k[7]<<24;
+	case 7:  b += (u32)k[6]<<16;
+	case 6:  b += (u32)k[5]<<8;
+	case 5:  b += k[4];
+	case 4:  a += (u32)k[3]<<24;
+	case 3:  a += (u32)k[2]<<16;
+	case 2:  a += (u32)k[1]<<8;
+	case 1:  a += k[0];
+		 __jhash_final(a, b, c);
+	case 0: /* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
+
+static __noinline u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval)
+{
+	a += initval;
+	b += initval;
+	c += initval;
+	__jhash_final(a, b, c);
+	return c;
+}
+
+static __noinline u32 jhash_2words(u32 a, u32 b, u32 initval)
+{
+	return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+#define PCKT_FRAGMENTED 65343
+#define IPV4_HDR_LEN_NO_OPT 20
+#define IPV4_PLUS_ICMP_HDR 28
+#define IPV6_PLUS_ICMP_HDR 48
+#define RING_SIZE 2
+#define MAX_VIPS 12
+#define MAX_REALS 5
+#define CTL_MAP_SIZE 16
+#define CH_RINGS_SIZE (MAX_VIPS * RING_SIZE)
+#define F_IPV6 (1 << 0)
+#define F_HASH_NO_SRC_PORT (1 << 0)
+#define F_ICMP (1 << 0)
+#define F_SYN_SET (1 << 1)
+
+struct packet_description {
+	union {
+		__be32 src;
+		__be32 srcv6[4];
+	};
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	union {
+		__u32 ports;
+		__u16 port16[2];
+	};
+	__u8 proto;
+	__u8 flags;
+};
+
+struct ctl_value {
+	union {
+		__u64 value;
+		__u32 ifindex;
+		__u8 mac[6];
+	};
+};
+
+struct vip_meta {
+	__u32 flags;
+	__u32 vip_num;
+};
+
+struct real_definition {
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	__u8 flags;
+};
+
+struct vip_stats {
+	__u64 bytes;
+	__u64 pkts;
+};
+
+struct eth_hdr {
+	unsigned char eth_dest[ETH_ALEN];
+	unsigned char eth_source[ETH_ALEN];
+	unsigned short eth_proto;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, struct vip);
+	__type(value, struct vip_meta);
+} vip_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CH_RINGS_SIZE);
+	__type(key, __u32);
+	__type(value, __u32);
+} ch_rings SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, MAX_REALS);
+	__type(key, __u32);
+	__type(value, struct real_definition);
+} reals SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, __u32);
+	__type(value, struct vip_stats);
+} stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CTL_MAP_SIZE);
+	__type(key, __u32);
+	__type(value, struct ctl_value);
+} ctl_array SEC(".maps");
+
+static __noinline __u32 get_packet_hash(struct packet_description *pckt, bool ipv6)
+{
+	if (ipv6)
+		return jhash_2words(jhash(pckt->srcv6, 16, MAX_VIPS),
+				    pckt->ports, CH_RINGS_SIZE);
+	else
+		return jhash_2words(pckt->src, pckt->ports, CH_RINGS_SIZE);
+}
+
+static __noinline bool get_packet_dst(struct real_definition **real,
+				      struct packet_description *pckt,
+				      struct vip_meta *vip_info,
+				      bool is_ipv6)
+{
+	__u32 hash = get_packet_hash(pckt, is_ipv6);
+	__u32 key = RING_SIZE * vip_info->vip_num + hash % RING_SIZE;
+	__u32 *real_pos;
+
+	if (hash != 0x358459b7 /* jhash of ipv4 packet */  &&
+	    hash != 0x2f4bc6bb /* jhash of ipv6 packet */)
+		return false;
+
+	real_pos = bpf_map_lookup_elem(&ch_rings, &key);
+	if (!real_pos)
+		return false;
+	key = *real_pos;
+	*real = bpf_map_lookup_elem(&reals, &key);
+	if (!(*real))
+		return false;
+	return true;
+}
+
+static __noinline int parse_icmpv6(void *data, void *data_end, __u64 off,
+				   struct packet_description *pckt)
+{
+	struct icmp6hdr *icmp_hdr;
+	struct ipv6hdr *ip6h;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (icmp_hdr->icmp6_type != ICMPV6_PKT_TOOBIG)
+		return TC_ACT_OK;
+	off += sizeof(struct icmp6hdr);
+	ip6h = data + off;
+	if (ip6h + 1 > data_end)
+		return TC_ACT_SHOT;
+	pckt->proto = ip6h->nexthdr;
+	pckt->flags |= F_ICMP;
+	memcpy(pckt->srcv6, ip6h->daddr.s6_addr32, 16);
+	memcpy(pckt->dstv6, ip6h->saddr.s6_addr32, 16);
+	return TC_ACT_UNSPEC;
+}
+
+static __noinline int parse_icmp(void *data, void *data_end, __u64 off,
+				 struct packet_description *pckt)
+{
+	struct icmphdr *icmp_hdr;
+	struct iphdr *iph;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (icmp_hdr->type != ICMP_DEST_UNREACH ||
+	    icmp_hdr->code != ICMP_FRAG_NEEDED)
+		return TC_ACT_OK;
+	off += sizeof(struct icmphdr);
+	iph = data + off;
+	if (iph + 1 > data_end)
+		return TC_ACT_SHOT;
+	if (iph->ihl != 5)
+		return TC_ACT_SHOT;
+	pckt->proto = iph->protocol;
+	pckt->flags |= F_ICMP;
+	pckt->src = iph->daddr;
+	pckt->dst = iph->saddr;
+	return TC_ACT_UNSPEC;
+}
+
+static __noinline bool parse_udp(void *data, __u64 off, void *data_end,
+				 struct packet_description *pckt)
+{
+	struct udphdr *udp;
+	udp = data + off;
+
+	if (udp + 1 > data_end)
+		return false;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = udp->source;
+		pckt->port16[1] = udp->dest;
+	} else {
+		pckt->port16[0] = udp->dest;
+		pckt->port16[1] = udp->source;
+	}
+	return true;
+}
+
+static __noinline bool parse_tcp(void *data, __u64 off, void *data_end,
+				 struct packet_description *pckt)
+{
+	struct tcphdr *tcp;
+
+	tcp = data + off;
+	if (tcp + 1 > data_end)
+		return false;
+
+	if (tcp->syn)
+		pckt->flags |= F_SYN_SET;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = tcp->source;
+		pckt->port16[1] = tcp->dest;
+	} else {
+		pckt->port16[0] = tcp->dest;
+		pckt->port16[1] = tcp->source;
+	}
+	return true;
+}
+
+static __noinline int process_packet(void *data, __u64 off, void *data_end,
+				     bool is_ipv6, struct __sk_buff *skb)
+{
+	void *pkt_start = (void *)(long)skb->data;
+	struct packet_description pckt = {};
+	struct eth_hdr *eth = pkt_start;
+	struct bpf_tunnel_key tkey = {};
+	struct vip_stats *data_stats;
+	struct real_definition *dst;
+	struct vip_meta *vip_info;
+	struct ctl_value *cval;
+	__u32 v4_intf_pos = 1;
+	__u32 v6_intf_pos = 2;
+	struct ipv6hdr *ip6h;
+	struct vip vip = {};
+	struct iphdr *iph;
+	int tun_flag = 0;
+	__u16 pkt_bytes;
+	__u64 iph_len;
+	__u32 ifindex;
+	__u8 protocol;
+	__u32 vip_num;
+	int action;
+
+	tkey.tunnel_ttl = 64;
+	if (is_ipv6) {
+		ip6h = data + off;
+		if (ip6h + 1 > data_end)
+			return TC_ACT_SHOT;
+
+		iph_len = sizeof(struct ipv6hdr);
+		protocol = ip6h->nexthdr;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(ip6h->payload_len);
+		off += iph_len;
+		if (protocol == IPPROTO_FRAGMENT) {
+			return TC_ACT_SHOT;
+		} else if (protocol == IPPROTO_ICMPV6) {
+			action = parse_icmpv6(data, data_end, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV6_PLUS_ICMP_HDR;
+		} else {
+			memcpy(pckt.srcv6, ip6h->saddr.s6_addr32, 16);
+			memcpy(pckt.dstv6, ip6h->daddr.s6_addr32, 16);
+		}
+	} else {
+		iph = data + off;
+		if (iph + 1 > data_end)
+			return TC_ACT_SHOT;
+		if (iph->ihl != 5)
+			return TC_ACT_SHOT;
+
+		protocol = iph->protocol;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(iph->tot_len);
+		off += IPV4_HDR_LEN_NO_OPT;
+
+		if (iph->frag_off & PCKT_FRAGMENTED)
+			return TC_ACT_SHOT;
+		if (protocol == IPPROTO_ICMP) {
+			action = parse_icmp(data, data_end, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV4_PLUS_ICMP_HDR;
+		} else {
+			pckt.src = iph->saddr;
+			pckt.dst = iph->daddr;
+		}
+	}
+	protocol = pckt.proto;
+
+	if (protocol == IPPROTO_TCP) {
+		if (!parse_tcp(data, off, data_end, &pckt))
+			return TC_ACT_SHOT;
+	} else if (protocol == IPPROTO_UDP) {
+		if (!parse_udp(data, off, data_end, &pckt))
+			return TC_ACT_SHOT;
+	} else {
+		return TC_ACT_SHOT;
+	}
+
+	if (is_ipv6)
+		memcpy(vip.daddr.v6, pckt.dstv6, 16);
+	else
+		vip.daddr.v4 = pckt.dst;
+
+	vip.dport = pckt.port16[1];
+	vip.protocol = pckt.proto;
+	vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+	if (!vip_info) {
+		vip.dport = 0;
+		vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+		if (!vip_info)
+			return TC_ACT_SHOT;
+		pckt.port16[1] = 0;
+	}
+
+	if (vip_info->flags & F_HASH_NO_SRC_PORT)
+		pckt.port16[0] = 0;
+
+	if (!get_packet_dst(&dst, &pckt, vip_info, is_ipv6))
+		return TC_ACT_SHOT;
+
+	if (dst->flags & F_IPV6) {
+		cval = bpf_map_lookup_elem(&ctl_array, &v6_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		memcpy(tkey.remote_ipv6, dst->dstv6, 16);
+		tun_flag = BPF_F_TUNINFO_IPV6;
+	} else {
+		cval = bpf_map_lookup_elem(&ctl_array, &v4_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		tkey.remote_ipv4 = dst->dst;
+	}
+	vip_num = vip_info->vip_num;
+	data_stats = bpf_map_lookup_elem(&stats, &vip_num);
+	if (!data_stats)
+		return TC_ACT_SHOT;
+	data_stats->pkts++;
+	data_stats->bytes += pkt_bytes;
+	bpf_skb_set_tunnel_key(skb, &tkey, sizeof(tkey), tun_flag);
+	*(u32 *)eth->eth_dest = tkey.remote_ipv4;
+	return bpf_redirect(ifindex, 0);
+}
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct eth_hdr *eth = data;
+	__u32 eth_proto;
+	__u32 nh_off;
+
+	nh_off = sizeof(struct eth_hdr);
+	if (data + nh_off > data_end)
+		return TC_ACT_SHOT;
+	eth_proto = eth->eth_proto;
+	if (eth_proto == bpf_htons(ETH_P_IP))
+		return process_packet(data, nh_off, data_end, false, ctx);
+	else if (eth_proto == bpf_htons(ETH_P_IPV6))
+		return process_packet(data, nh_off, data_end, true, ctx);
+	else
+		return TC_ACT_SHOT;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_l4lb_noinline_dynptr.c b/tools/testing/selftests/bpf/progs/test_l4lb_noinline_dynptr.c
new file mode 100644
index 000000000000..f997f5080748
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_l4lb_noinline_dynptr.c
@@ -0,0 +1,487 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/pkt_cls.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+#include "test_iptunnel_common.h"
+#include <bpf/bpf_endian.h>
+
+#include "bpf_kfuncs.h"
+
+static __always_inline __u32 rol32(__u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
+/* copy paste of jhash from kernel sources to make sure llvm
+ * can compile it into valid sequence of bpf instructions
+ */
+#define __jhash_mix(a, b, c)			\
+{						\
+	a -= c;  a ^= rol32(c, 4);  c += b;	\
+	b -= a;  b ^= rol32(a, 6);  a += c;	\
+	c -= b;  c ^= rol32(b, 8);  b += a;	\
+	a -= c;  a ^= rol32(c, 16); c += b;	\
+	b -= a;  b ^= rol32(a, 19); a += c;	\
+	c -= b;  c ^= rol32(b, 4);  b += a;	\
+}
+
+#define __jhash_final(a, b, c)			\
+{						\
+	c ^= b; c -= rol32(b, 14);		\
+	a ^= c; a -= rol32(c, 11);		\
+	b ^= a; b -= rol32(a, 25);		\
+	c ^= b; c -= rol32(b, 16);		\
+	a ^= c; a -= rol32(c, 4);		\
+	b ^= a; b -= rol32(a, 14);		\
+	c ^= b; c -= rol32(b, 24);		\
+}
+
+#define JHASH_INITVAL		0xdeadbeef
+
+typedef unsigned int u32;
+
+static __noinline u32 jhash(const void *key, u32 length, u32 initval)
+{
+	u32 a, b, c;
+	const unsigned char *k = key;
+
+	a = b = c = JHASH_INITVAL + length + initval;
+
+	while (length > 12) {
+		a += *(u32 *)(k);
+		b += *(u32 *)(k + 4);
+		c += *(u32 *)(k + 8);
+		__jhash_mix(a, b, c);
+		length -= 12;
+		k += 12;
+	}
+	switch (length) {
+	case 12: c += (u32)k[11]<<24;
+	case 11: c += (u32)k[10]<<16;
+	case 10: c += (u32)k[9]<<8;
+	case 9:  c += k[8];
+	case 8:  b += (u32)k[7]<<24;
+	case 7:  b += (u32)k[6]<<16;
+	case 6:  b += (u32)k[5]<<8;
+	case 5:  b += k[4];
+	case 4:  a += (u32)k[3]<<24;
+	case 3:  a += (u32)k[2]<<16;
+	case 2:  a += (u32)k[1]<<8;
+	case 1:  a += k[0];
+		 __jhash_final(a, b, c);
+	case 0: /* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
+
+static __noinline u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval)
+{
+	a += initval;
+	b += initval;
+	c += initval;
+	__jhash_final(a, b, c);
+	return c;
+}
+
+static __noinline u32 jhash_2words(u32 a, u32 b, u32 initval)
+{
+	return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+#define PCKT_FRAGMENTED 65343
+#define IPV4_HDR_LEN_NO_OPT 20
+#define IPV4_PLUS_ICMP_HDR 28
+#define IPV6_PLUS_ICMP_HDR 48
+#define RING_SIZE 2
+#define MAX_VIPS 12
+#define MAX_REALS 5
+#define CTL_MAP_SIZE 16
+#define CH_RINGS_SIZE (MAX_VIPS * RING_SIZE)
+#define F_IPV6 (1 << 0)
+#define F_HASH_NO_SRC_PORT (1 << 0)
+#define F_ICMP (1 << 0)
+#define F_SYN_SET (1 << 1)
+
+struct packet_description {
+	union {
+		__be32 src;
+		__be32 srcv6[4];
+	};
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	union {
+		__u32 ports;
+		__u16 port16[2];
+	};
+	__u8 proto;
+	__u8 flags;
+};
+
+struct ctl_value {
+	union {
+		__u64 value;
+		__u32 ifindex;
+		__u8 mac[6];
+	};
+};
+
+struct vip_meta {
+	__u32 flags;
+	__u32 vip_num;
+};
+
+struct real_definition {
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	__u8 flags;
+};
+
+struct vip_stats {
+	__u64 bytes;
+	__u64 pkts;
+};
+
+struct eth_hdr {
+	unsigned char eth_dest[ETH_ALEN];
+	unsigned char eth_source[ETH_ALEN];
+	unsigned short eth_proto;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, struct vip);
+	__type(value, struct vip_meta);
+} vip_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CH_RINGS_SIZE);
+	__type(key, __u32);
+	__type(value, __u32);
+} ch_rings SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, MAX_REALS);
+	__type(key, __u32);
+	__type(value, struct real_definition);
+} reals SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, MAX_VIPS);
+	__type(key, __u32);
+	__type(value, struct vip_stats);
+} stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, CTL_MAP_SIZE);
+	__type(key, __u32);
+	__type(value, struct ctl_value);
+} ctl_array SEC(".maps");
+
+static __noinline __u32 get_packet_hash(struct packet_description *pckt, bool ipv6)
+{
+	if (ipv6)
+		return jhash_2words(jhash(pckt->srcv6, 16, MAX_VIPS),
+				    pckt->ports, CH_RINGS_SIZE);
+	else
+		return jhash_2words(pckt->src, pckt->ports, CH_RINGS_SIZE);
+}
+
+static __noinline bool get_packet_dst(struct real_definition **real,
+				      struct packet_description *pckt,
+				      struct vip_meta *vip_info,
+				      bool is_ipv6)
+{
+	__u32 hash = get_packet_hash(pckt, is_ipv6);
+	__u32 key = RING_SIZE * vip_info->vip_num + hash % RING_SIZE;
+	__u32 *real_pos;
+
+	if (hash != 0x358459b7 /* jhash of ipv4 packet */  &&
+	    hash != 0x2f4bc6bb /* jhash of ipv6 packet */)
+		return false;
+
+	real_pos = bpf_map_lookup_elem(&ch_rings, &key);
+	if (!real_pos)
+		return false;
+	key = *real_pos;
+	*real = bpf_map_lookup_elem(&reals, &key);
+	if (!(*real))
+		return false;
+	return true;
+}
+
+static __noinline int parse_icmpv6(struct bpf_dynptr *skb_ptr, __u64 off,
+				   struct packet_description *pckt)
+{
+	__u8 buffer[sizeof(struct ipv6hdr)] = {};
+	struct icmp6hdr *icmp_hdr;
+	struct ipv6hdr *ip6h;
+
+	icmp_hdr = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+	if (!icmp_hdr)
+		return TC_ACT_SHOT;
+
+	if (icmp_hdr->icmp6_type != ICMPV6_PKT_TOOBIG)
+		return TC_ACT_OK;
+	off += sizeof(struct icmp6hdr);
+	ip6h = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+	if (!ip6h)
+		return TC_ACT_SHOT;
+	pckt->proto = ip6h->nexthdr;
+	pckt->flags |= F_ICMP;
+	memcpy(pckt->srcv6, ip6h->daddr.s6_addr32, 16);
+	memcpy(pckt->dstv6, ip6h->saddr.s6_addr32, 16);
+	return TC_ACT_UNSPEC;
+}
+
+static __noinline int parse_icmp(struct bpf_dynptr *skb_ptr, __u64 off,
+				 struct packet_description *pckt)
+{
+	__u8 buffer_icmp[sizeof(struct iphdr)] = {};
+	__u8 buffer_ip[sizeof(struct iphdr)] = {};
+	struct icmphdr *icmp_hdr;
+	struct iphdr *iph;
+
+	icmp_hdr = bpf_dynptr_slice(skb_ptr, off, buffer_icmp, sizeof(buffer_icmp));
+	if (!icmp_hdr)
+		return TC_ACT_SHOT;
+	if (icmp_hdr->type != ICMP_DEST_UNREACH ||
+	    icmp_hdr->code != ICMP_FRAG_NEEDED)
+		return TC_ACT_OK;
+	off += sizeof(struct icmphdr);
+	iph = bpf_dynptr_slice(skb_ptr, off, buffer_ip, sizeof(buffer_ip));
+	if (!iph || iph->ihl != 5)
+		return TC_ACT_SHOT;
+	pckt->proto = iph->protocol;
+	pckt->flags |= F_ICMP;
+	pckt->src = iph->daddr;
+	pckt->dst = iph->saddr;
+	return TC_ACT_UNSPEC;
+}
+
+static __noinline bool parse_udp(struct bpf_dynptr *skb_ptr, __u64 off,
+				 struct packet_description *pckt)
+{
+	__u8 buffer[sizeof(struct udphdr)] = {};
+	struct udphdr *udp;
+
+	udp = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+	if (!udp)
+		return false;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = udp->source;
+		pckt->port16[1] = udp->dest;
+	} else {
+		pckt->port16[0] = udp->dest;
+		pckt->port16[1] = udp->source;
+	}
+	return true;
+}
+
+static __noinline bool parse_tcp(struct bpf_dynptr *skb_ptr, __u64 off,
+				 struct packet_description *pckt)
+{
+	__u8 buffer[sizeof(struct tcphdr)] = {};
+	struct tcphdr *tcp;
+
+	tcp = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+	if (!tcp)
+		return false;
+
+	if (tcp->syn)
+		pckt->flags |= F_SYN_SET;
+
+	if (!(pckt->flags & F_ICMP)) {
+		pckt->port16[0] = tcp->source;
+		pckt->port16[1] = tcp->dest;
+	} else {
+		pckt->port16[0] = tcp->dest;
+		pckt->port16[1] = tcp->source;
+	}
+	return true;
+}
+
+static __noinline int process_packet(struct bpf_dynptr *skb_ptr,
+				     struct eth_hdr *eth, __u64 off,
+				     bool is_ipv6, struct __sk_buff *skb)
+{
+	struct packet_description pckt = {};
+	struct bpf_tunnel_key tkey = {};
+	struct vip_stats *data_stats;
+	struct real_definition *dst;
+	struct vip_meta *vip_info;
+	struct ctl_value *cval;
+	__u32 v4_intf_pos = 1;
+	__u32 v6_intf_pos = 2;
+	struct ipv6hdr *ip6h;
+	struct vip vip = {};
+	struct iphdr *iph;
+	int tun_flag = 0;
+	__u16 pkt_bytes;
+	__u64 iph_len;
+	__u32 ifindex;
+	__u8 protocol;
+	__u32 vip_num;
+	int action;
+
+	tkey.tunnel_ttl = 64;
+	if (is_ipv6) {
+		__u8 buffer[sizeof(struct ipv6hdr)] = {};
+
+		ip6h = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+		if (!ip6h)
+			return TC_ACT_SHOT;
+
+		iph_len = sizeof(struct ipv6hdr);
+		protocol = ip6h->nexthdr;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(ip6h->payload_len);
+		off += iph_len;
+		if (protocol == IPPROTO_FRAGMENT) {
+			return TC_ACT_SHOT;
+		} else if (protocol == IPPROTO_ICMPV6) {
+			action = parse_icmpv6(skb_ptr, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV6_PLUS_ICMP_HDR;
+		} else {
+			memcpy(pckt.srcv6, ip6h->saddr.s6_addr32, 16);
+			memcpy(pckt.dstv6, ip6h->daddr.s6_addr32, 16);
+		}
+	} else {
+		__u8 buffer[sizeof(struct iphdr)] = {};
+
+		iph = bpf_dynptr_slice(skb_ptr, off, buffer, sizeof(buffer));
+		if (!iph || iph->ihl != 5)
+			return TC_ACT_SHOT;
+
+		protocol = iph->protocol;
+		pckt.proto = protocol;
+		pkt_bytes = bpf_ntohs(iph->tot_len);
+		off += IPV4_HDR_LEN_NO_OPT;
+
+		if (iph->frag_off & PCKT_FRAGMENTED)
+			return TC_ACT_SHOT;
+		if (protocol == IPPROTO_ICMP) {
+			action = parse_icmp(skb_ptr, off, &pckt);
+			if (action >= 0)
+				return action;
+			off += IPV4_PLUS_ICMP_HDR;
+		} else {
+			pckt.src = iph->saddr;
+			pckt.dst = iph->daddr;
+		}
+	}
+	protocol = pckt.proto;
+
+	if (protocol == IPPROTO_TCP) {
+		if (!parse_tcp(skb_ptr, off, &pckt))
+			return TC_ACT_SHOT;
+	} else if (protocol == IPPROTO_UDP) {
+		if (!parse_udp(skb_ptr, off, &pckt))
+			return TC_ACT_SHOT;
+	} else {
+		return TC_ACT_SHOT;
+	}
+
+	if (is_ipv6)
+		memcpy(vip.daddr.v6, pckt.dstv6, 16);
+	else
+		vip.daddr.v4 = pckt.dst;
+
+	vip.dport = pckt.port16[1];
+	vip.protocol = pckt.proto;
+	vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+	if (!vip_info) {
+		vip.dport = 0;
+		vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+		if (!vip_info)
+			return TC_ACT_SHOT;
+		pckt.port16[1] = 0;
+	}
+
+	if (vip_info->flags & F_HASH_NO_SRC_PORT)
+		pckt.port16[0] = 0;
+
+	if (!get_packet_dst(&dst, &pckt, vip_info, is_ipv6))
+		return TC_ACT_SHOT;
+
+	if (dst->flags & F_IPV6) {
+		cval = bpf_map_lookup_elem(&ctl_array, &v6_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		memcpy(tkey.remote_ipv6, dst->dstv6, 16);
+		tun_flag = BPF_F_TUNINFO_IPV6;
+	} else {
+		cval = bpf_map_lookup_elem(&ctl_array, &v4_intf_pos);
+		if (!cval)
+			return TC_ACT_SHOT;
+		ifindex = cval->ifindex;
+		tkey.remote_ipv4 = dst->dst;
+	}
+	vip_num = vip_info->vip_num;
+	data_stats = bpf_map_lookup_elem(&stats, &vip_num);
+	if (!data_stats)
+		return TC_ACT_SHOT;
+	data_stats->pkts++;
+	data_stats->bytes += pkt_bytes;
+	bpf_skb_set_tunnel_key(skb, &tkey, sizeof(tkey), tun_flag);
+	*(u32 *)eth->eth_dest = tkey.remote_ipv4;
+	return bpf_redirect(ifindex, 0);
+}
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	__u8 buffer[sizeof(struct eth_hdr)] = {};
+	struct bpf_dynptr ptr;
+	struct eth_hdr *eth;
+	__u32 eth_proto;
+	__u32 nh_off;
+	int err;
+
+	nh_off = sizeof(struct eth_hdr);
+
+	bpf_dynptr_from_skb(ctx, 0, &ptr);
+	eth = bpf_dynptr_slice_rdwr(&ptr, 0, buffer, sizeof(buffer));
+	if (!eth)
+		return TC_ACT_SHOT;
+	eth_proto = eth->eth_proto;
+	if (eth_proto == bpf_htons(ETH_P_IP))
+		err = process_packet(&ptr, eth, nh_off, false, ctx);
+	else if (eth_proto == bpf_htons(ETH_P_IPV6))
+		err = process_packet(&ptr, eth, nh_off, true, ctx);
+	else
+		return TC_ACT_SHOT;
+
+	if (eth == buffer)
+		bpf_dynptr_write(&ptr, 0, buffer, sizeof(buffer), 0);
+
+	return err;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ldsx_insn.c b/tools/testing/selftests/bpf/progs/test_ldsx_insn.c
new file mode 100644
index 000000000000..2a2a942737d7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ldsx_insn.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+     (defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) ||       \
+     defined(__TARGET_ARCH_s390) || defined(__TARGET_ARCH_loongarch)) && \
+     __clang_major__ >= 18
+const volatile int skip = 0;
+#else
+const volatile int skip = 1;
+#endif
+
+volatile const short val1 = -1;
+volatile const int val2 = -1;
+short val3 = -1;
+int val4 = -1;
+int done1, done2, ret1, ret2;
+
+SEC("?raw_tp/sys_enter")
+int rdonly_map_prog(const void *ctx)
+{
+	if (done1)
+		return 0;
+
+	done1 = 1;
+	/* val1/val2 readonly map */
+	if (val1 == val2)
+		ret1 = 1;
+	return 0;
+
+}
+
+SEC("?raw_tp/sys_enter")
+int map_val_prog(const void *ctx)
+{
+	if (done2)
+		return 0;
+
+	done2 = 1;
+	/* val1/val2 regular read/write map */
+	if (val3 == val4)
+		ret2 = 1;
+	return 0;
+
+}
+
+struct bpf_testmod_struct_arg_1 {
+	int a;
+};
+
+long long int_member;
+
+SEC("?fentry/bpf_testmod_test_arg_ptr_to_struct")
+int BPF_PROG2(test_ptr_struct_arg, struct bpf_testmod_struct_arg_1 *, p)
+{
+	/* probed memory access */
+	int_member = p->a;
+        return 0;
+}
+
+long long set_optlen, set_retval;
+
+SEC("?cgroup/getsockopt")
+int _getsockopt(volatile struct bpf_sockopt *ctx)
+{
+	int old_optlen, old_retval;
+
+	old_optlen = ctx->optlen;
+	old_retval = ctx->retval;
+
+	ctx->optlen = -1;
+	ctx->retval = -1;
+
+	/* sign extension for ctx member */
+	set_optlen = ctx->optlen;
+	set_retval = ctx->retval;
+
+	ctx->optlen = old_optlen;
+	ctx->retval = old_retval;
+
+	return 0;
+}
+
+long long set_mark;
+
+SEC("?tc")
+int _tc(volatile struct __sk_buff *skb)
+{
+	long long tmp_mark;
+	int old_mark;
+
+	old_mark = skb->mark;
+
+	skb->mark = 0xf6fe;
+
+	/* narrowed sign extension for ctx member */
+#if __clang_major__ >= 18
+	/* force narrow one-byte signed load. Otherwise, compiler may
+	 * generate a 32-bit unsigned load followed by an s8 movsx.
+	 */
+	asm volatile ("r1 = *(s8 *)(%[ctx] + %[off_mark])\n\t"
+		      "%[tmp_mark] = r1"
+		      : [tmp_mark]"=r"(tmp_mark)
+		      : [ctx]"r"(skb),
+			[off_mark]"i"(offsetof(struct __sk_buff, mark)
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+			+ sizeof(skb->mark) - 1
+#endif
+			)
+		      : "r1");
+#else
+	tmp_mark = (char)skb->mark;
+#endif
+	set_mark = tmp_mark;
+
+	skb->mark = old_mark;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_legacy_printk.c b/tools/testing/selftests/bpf/progs/test_legacy_printk.c
new file mode 100644
index 000000000000..42718cd8e6a4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_legacy_printk.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <linux/bpf.h>
+#define BPF_NO_GLOBAL_DATA
+#include <bpf/bpf_helpers.h>
+
+char LICENSE[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+} my_pid_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+} res_map SEC(".maps");
+
+volatile int my_pid_var = 0;
+volatile int res_var = 0;
+
+SEC("tp/raw_syscalls/sys_enter")
+int handle_legacy(void *ctx)
+{
+	int zero = 0, *my_pid, cur_pid, *my_res;
+
+	my_pid = bpf_map_lookup_elem(&my_pid_map, &zero);
+	if (!my_pid)
+		return 1;
+
+	cur_pid = bpf_get_current_pid_tgid() >> 32;
+	if (cur_pid != *my_pid)
+		return 1;
+
+	my_res = bpf_map_lookup_elem(&res_map, &zero);
+	if (!my_res)
+		return 1;
+
+	if (*my_res == 0)
+		/* use bpf_printk() in combination with BPF_NO_GLOBAL_DATA to
+		 * force .rodata.str1.1 section that previously caused
+		 * problems on old kernels due to libbpf always tried to
+		 * create a global data map for it
+		 */
+		bpf_printk("Legacy-case bpf_printk test, pid %d\n", cur_pid);
+	*my_res = 1;
+
+	return *my_res;
+}
+
+SEC("tp/raw_syscalls/sys_enter")
+int handle_modern(void *ctx)
+{
+	int cur_pid;
+
+	cur_pid = bpf_get_current_pid_tgid() >> 32;
+	if (cur_pid != my_pid_var)
+		return 1;
+
+	if (res_var == 0)
+		/* we need bpf_printk() to validate libbpf logic around unused
+		 * global maps and legacy kernels; see comment in handle_legacy()
+		 */
+		bpf_printk("Modern-case bpf_printk test, pid %d\n", cur_pid);
+	res_var = 1;
+
+	return res_var;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c b/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c
new file mode 100644
index 000000000000..568816307f71
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_libbpf_get_fd_by_id_opts.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+/* From include/linux/mm.h. */
+#define FMODE_WRITE	0x2
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} data_input SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+SEC("lsm/bpf_map")
+int BPF_PROG(check_access, struct bpf_map *map, fmode_t fmode)
+{
+	if (map != (struct bpf_map *)&data_input)
+		return 0;
+
+	if (fmode & FMODE_WRITE)
+		return -EACCES;
+	barrier();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_link_pinning.c b/tools/testing/selftests/bpf/progs/test_link_pinning.c
new file mode 100644
index 000000000000..bbf2a5264dc0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_link_pinning.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int in = 0;
+int out = 0;
+
+SEC("raw_tp/sys_enter")
+int raw_tp_prog(const void *ctx)
+{
+	out = in;
+	return 0;
+}
+
+SEC("tp_btf/sys_enter")
+int tp_btf_prog(const void *ctx)
+{
+	out = in;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c b/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c
new file mode 100644
index 000000000000..7a6620671a83
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lirc_mode2_kern.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+// test ir decoder
+//
+// Copyright (C) 2018 Sean Young <sean@mess.org>
+
+#include <linux/bpf.h>
+#include <linux/lirc.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("lirc_mode2")
+int bpf_decoder(unsigned int *sample)
+{
+	if (LIRC_IS_PULSE(*sample)) {
+		unsigned int duration = LIRC_VALUE(*sample);
+
+		if (duration & 0x10000)
+			bpf_rc_keydown(sample, 0x40, duration & 0xffff, 0);
+		if (duration & 0x20000)
+			bpf_rc_pointer_rel(sample, (duration >> 8) & 0xff,
+					   duration & 0xff);
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_log_buf.c b/tools/testing/selftests/bpf/progs/test_log_buf.c
new file mode 100644
index 000000000000..199f459bd5ae
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_log_buf.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int a[4];
+const volatile int off = 4000;
+
+SEC("raw_tp/sys_enter")
+int good_prog(const void *ctx)
+{
+	a[0] = (int)(long)ctx;
+	return a[1];
+}
+
+SEC("raw_tp/sys_enter")
+int bad_prog(const void *ctx)
+{
+	/* out of bounds access */
+	return a[off];
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_log_fixup.c b/tools/testing/selftests/bpf/progs/test_log_fixup.c
new file mode 100644
index 000000000000..1bd48feaaa42
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_log_fixup.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+struct task_struct___bad {
+	int pid;
+	int fake_field;
+	void *fake_field_subprog;
+} __attribute__((preserve_access_index));
+
+SEC("?raw_tp/sys_enter")
+int bad_relo(const void *ctx)
+{
+	static struct task_struct___bad *t;
+
+	return bpf_core_field_size(t->fake_field);
+}
+
+static __noinline int bad_subprog(void)
+{
+	static struct task_struct___bad *t;
+
+	/* ugliness below is a field offset relocation */
+	return (void *)&t->fake_field_subprog - (void *)t;
+}
+
+SEC("?raw_tp/sys_enter")
+int bad_relo_subprog(const void *ctx)
+{
+	static struct task_struct___bad *t;
+
+	return bad_subprog() + bpf_core_field_size(t->pid);
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} existing_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} missing_map SEC(".maps");
+
+SEC("?raw_tp/sys_enter")
+int use_missing_map(const void *ctx)
+{
+	int zero = 0, *value;
+
+	value = bpf_map_lookup_elem(&existing_map, &zero);
+
+	value = bpf_map_lookup_elem(&missing_map, &zero);
+
+	return value != NULL;
+}
+
+extern int bpf_nonexistent_kfunc(void) __ksym __weak;
+
+SEC("?raw_tp/sys_enter")
+int use_missing_kfunc(const void *ctx)
+{
+	bpf_nonexistent_kfunc();
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c b/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c
new file mode 100644
index 000000000000..3a193f42c7e7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lookup_and_delete.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+__u32 set_pid = 0;
+__u64 set_key = 0;
+__u64 set_value = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 2);
+	__type(key, __u64);
+	__type(value, __u64);
+} hash_map SEC(".maps");
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int bpf_lookup_and_delete_test(const void *ctx)
+{
+	if (set_pid == bpf_get_current_pid_tgid() >> 32)
+		bpf_map_update_elem(&hash_map, &set_key, &set_value, BPF_NOEXIST);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lookup_key.c b/tools/testing/selftests/bpf/progs/test_lookup_key.c
new file mode 100644
index 000000000000..1f7e1e59b073
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lookup_key.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 monitored_pid;
+__s32 key_serial;
+__u32 key_id;
+__u64 flags;
+
+extern struct bpf_key *bpf_lookup_user_key(__s32 serial, __u64 flags) __ksym;
+extern struct bpf_key *bpf_lookup_system_key(__u64 id) __ksym;
+extern void bpf_key_put(struct bpf_key *key) __ksym;
+
+SEC("lsm.s/bpf")
+int BPF_PROG(bpf, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	struct bpf_key *bkey;
+	__u32 pid;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	if (key_serial)
+		bkey = bpf_lookup_user_key(key_serial, flags);
+	else
+		bkey = bpf_lookup_system_key(key_id);
+
+	if (!bkey)
+		return -ENOENT;
+
+	bpf_key_put(bkey);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c b/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c
new file mode 100644
index 000000000000..d6cb986e7533
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lwt_ip_encap.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct grehdr {
+	__be16 flags;
+	__be16 protocol;
+};
+
+SEC("encap_gre")
+int bpf_lwt_encap_gre(struct __sk_buff *skb)
+{
+	struct encap_hdr {
+		struct iphdr iph;
+		struct grehdr greh;
+	} hdr;
+	int err;
+
+	memset(&hdr, 0, sizeof(struct encap_hdr));
+
+	hdr.iph.ihl = 5;
+	hdr.iph.version = 4;
+	hdr.iph.ttl = 0x40;
+	hdr.iph.protocol = 47;  /* IPPROTO_GRE */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	hdr.iph.saddr = 0x640110ac;  /* 172.16.1.100 */
+	hdr.iph.daddr = 0x641010ac;  /* 172.16.16.100 */
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	hdr.iph.saddr = 0xac100164;  /* 172.16.1.100 */
+	hdr.iph.daddr = 0xac101064;  /* 172.16.16.100 */
+#else
+#error "Fix your compiler's __BYTE_ORDER__?!"
+#endif
+	hdr.iph.tot_len = bpf_htons(skb->len + sizeof(struct encap_hdr));
+
+	hdr.greh.protocol = skb->protocol;
+
+	err = bpf_lwt_push_encap(skb, BPF_LWT_ENCAP_IP, &hdr,
+				 sizeof(struct encap_hdr));
+	if (err)
+		return BPF_DROP;
+
+	return BPF_LWT_REROUTE;
+}
+
+SEC("encap_gre6")
+int bpf_lwt_encap_gre6(struct __sk_buff *skb)
+{
+	struct encap_hdr {
+		struct ipv6hdr ip6hdr;
+		struct grehdr greh;
+	} hdr;
+	int err;
+
+	memset(&hdr, 0, sizeof(struct encap_hdr));
+
+	hdr.ip6hdr.version = 6;
+	hdr.ip6hdr.payload_len = bpf_htons(skb->len + sizeof(struct grehdr));
+	hdr.ip6hdr.nexthdr = 47;  /* IPPROTO_GRE */
+	hdr.ip6hdr.hop_limit = 0x40;
+	/* fb01::1 */
+	hdr.ip6hdr.saddr.s6_addr[0] = 0xfb;
+	hdr.ip6hdr.saddr.s6_addr[1] = 1;
+	hdr.ip6hdr.saddr.s6_addr[15] = 1;
+	/* fb10::1 */
+	hdr.ip6hdr.daddr.s6_addr[0] = 0xfb;
+	hdr.ip6hdr.daddr.s6_addr[1] = 0x10;
+	hdr.ip6hdr.daddr.s6_addr[15] = 1;
+
+	hdr.greh.protocol = skb->protocol;
+
+	err = bpf_lwt_push_encap(skb, BPF_LWT_ENCAP_IP, &hdr,
+				 sizeof(struct encap_hdr));
+	if (err)
+		return BPF_DROP;
+
+	return BPF_LWT_REROUTE;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lwt_redirect.c b/tools/testing/selftests/bpf/progs/test_lwt_redirect.c
new file mode 100644
index 000000000000..83439b87b766
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lwt_redirect.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/ip.h>
+#include <linux/if_ether.h>
+
+/* We don't care about whether the packet can be received by network stack.
+ * Just care if the packet is sent to the correct device at correct direction
+ * and not panic the kernel.
+ */
+static int prepend_dummy_mac(struct __sk_buff *skb)
+{
+	char mac[] = {0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xf,
+		      0xe, 0xd, 0xc, 0xb, 0xa, 0x08, 0x00};
+
+	if (bpf_skb_change_head(skb, ETH_HLEN, 0))
+		return -1;
+
+	if (bpf_skb_store_bytes(skb, 0, mac, sizeof(mac), 0))
+		return -1;
+
+	return 0;
+}
+
+/* Use the last byte of IP address to redirect the packet */
+static int get_redirect_target(struct __sk_buff *skb)
+{
+	struct iphdr *iph = NULL;
+	void *start = (void *)(long)skb->data;
+	void *end = (void *)(long)skb->data_end;
+
+	if (start + sizeof(*iph) > end)
+		return -1;
+
+	iph = (struct iphdr *)start;
+	return bpf_ntohl(iph->daddr) & 0xff;
+}
+
+SEC("redir_ingress")
+int test_lwt_redirect_in(struct __sk_buff *skb)
+{
+	int target = get_redirect_target(skb);
+
+	if (target < 0)
+		return BPF_OK;
+
+	if (prepend_dummy_mac(skb))
+		return BPF_DROP;
+
+	return bpf_redirect(target, BPF_F_INGRESS);
+}
+
+SEC("redir_egress")
+int test_lwt_redirect_out(struct __sk_buff *skb)
+{
+	int target = get_redirect_target(skb);
+
+	if (target < 0)
+		return BPF_OK;
+
+	if (prepend_dummy_mac(skb))
+		return BPF_DROP;
+
+	return bpf_redirect(target, 0);
+}
+
+SEC("redir_egress_nomac")
+int test_lwt_redirect_out_nomac(struct __sk_buff *skb)
+{
+	int target = get_redirect_target(skb);
+
+	if (target < 0)
+		return BPF_OK;
+
+	return bpf_redirect(target, 0);
+}
+
+SEC("redir_ingress_nomac")
+int test_lwt_redirect_in_nomac(struct __sk_buff *skb)
+{
+	int target = get_redirect_target(skb);
+
+	if (target < 0)
+		return BPF_OK;
+
+	return bpf_redirect(target, BPF_F_INGRESS);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lwt_reroute.c b/tools/testing/selftests/bpf/progs/test_lwt_reroute.c
new file mode 100644
index 000000000000..1dc64351929c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lwt_reroute.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+
+/* This function extracts the last byte of the daddr, and uses it
+ * as output dev index.
+ */
+SEC("lwt_xmit")
+int test_lwt_reroute(struct __sk_buff *skb)
+{
+	struct iphdr *iph = NULL;
+	void *start = (void *)(long)skb->data;
+	void *end = (void *)(long)skb->data_end;
+
+	/* set mark at most once */
+	if (skb->mark != 0)
+		return BPF_OK;
+
+	if (start + sizeof(*iph) > end)
+		return BPF_DROP;
+
+	iph = (struct iphdr *)start;
+	skb->mark = bpf_ntohl(iph->daddr) & 0xff;
+
+	/* do not reroute x.x.x.0 packets */
+	if (skb->mark == 0)
+		return BPF_OK;
+
+	return BPF_LWT_REROUTE;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c b/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c
new file mode 100644
index 000000000000..fed66f36adb6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_lwt_seg6local.c
@@ -0,0 +1,428 @@
+#include <stddef.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <linux/seg6_local.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bpf_compiler.h"
+
+/* Packet parsing state machine helpers. */
+#define cursor_advance(_cursor, _len) \
+	({ void *_tmp = _cursor; _cursor += _len; _tmp; })
+
+#define SR6_FLAG_ALERT (1 << 4)
+
+#define BPF_PACKET_HEADER __attribute__((packed))
+
+struct ip6_t {
+	unsigned int ver:4;
+	unsigned int priority:8;
+	unsigned int flow_label:20;
+	unsigned short payload_len;
+	unsigned char next_header;
+	unsigned char hop_limit;
+	unsigned long long src_hi;
+	unsigned long long src_lo;
+	unsigned long long dst_hi;
+	unsigned long long dst_lo;
+} BPF_PACKET_HEADER;
+
+struct ip6_addr_t {
+	unsigned long long hi;
+	unsigned long long lo;
+} BPF_PACKET_HEADER;
+
+struct ip6_srh_t {
+	unsigned char nexthdr;
+	unsigned char hdrlen;
+	unsigned char type;
+	unsigned char segments_left;
+	unsigned char first_segment;
+	unsigned char flags;
+	unsigned short tag;
+
+	struct ip6_addr_t segments[0];
+} BPF_PACKET_HEADER;
+
+struct sr6_tlv_t {
+	unsigned char type;
+	unsigned char len;
+	unsigned char value[0];
+} BPF_PACKET_HEADER;
+
+static __always_inline struct ip6_srh_t *get_srh(struct __sk_buff *skb)
+{
+	void *cursor, *data_end;
+	struct ip6_srh_t *srh;
+	struct ip6_t *ip;
+	uint8_t *ipver;
+
+	data_end = (void *)(long)skb->data_end;
+	cursor = (void *)(long)skb->data;
+	ipver = (uint8_t *)cursor;
+
+	if ((void *)ipver + sizeof(*ipver) > data_end)
+		return NULL;
+
+	if ((*ipver >> 4) != 6)
+		return NULL;
+
+	ip = cursor_advance(cursor, sizeof(*ip));
+	if ((void *)ip + sizeof(*ip) > data_end)
+		return NULL;
+
+	if (ip->next_header != 43)
+		return NULL;
+
+	srh = cursor_advance(cursor, sizeof(*srh));
+	if ((void *)srh + sizeof(*srh) > data_end)
+		return NULL;
+
+	if (srh->type != 4)
+		return NULL;
+
+	return srh;
+}
+
+static __always_inline
+int update_tlv_pad(struct __sk_buff *skb, uint32_t new_pad,
+		   uint32_t old_pad, uint32_t pad_off)
+{
+	int err;
+
+	if (new_pad != old_pad) {
+		err = bpf_lwt_seg6_adjust_srh(skb, pad_off,
+					  (int) new_pad - (int) old_pad);
+		if (err)
+			return err;
+	}
+
+	if (new_pad > 0) {
+		char pad_tlv_buf[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+					0, 0, 0};
+		struct sr6_tlv_t *pad_tlv = (struct sr6_tlv_t *) pad_tlv_buf;
+
+		pad_tlv->type = SR6_TLV_PADDING;
+		pad_tlv->len = new_pad - 2;
+
+		err = bpf_lwt_seg6_store_bytes(skb, pad_off,
+					       (void *)pad_tlv_buf, new_pad);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static __always_inline
+int is_valid_tlv_boundary(struct __sk_buff *skb, struct ip6_srh_t *srh,
+			  uint32_t *tlv_off, uint32_t *pad_size,
+			  uint32_t *pad_off)
+{
+	uint32_t srh_off, cur_off;
+	int offset_valid = 0;
+	int err;
+
+	srh_off = (char *)srh - (char *)(long)skb->data;
+	// cur_off = end of segments, start of possible TLVs
+	cur_off = srh_off + sizeof(*srh) +
+		sizeof(struct ip6_addr_t) * (srh->first_segment + 1);
+
+	*pad_off = 0;
+
+	// we can only go as far as ~10 TLVs due to the BPF max stack size
+	__pragma_loop_unroll_full
+	for (int i = 0; i < 10; i++) {
+		struct sr6_tlv_t tlv;
+
+		if (cur_off == *tlv_off)
+			offset_valid = 1;
+
+		if (cur_off >= srh_off + ((srh->hdrlen + 1) << 3))
+			break;
+
+		err = bpf_skb_load_bytes(skb, cur_off, &tlv, sizeof(tlv));
+		if (err)
+			return err;
+
+		if (tlv.type == SR6_TLV_PADDING) {
+			*pad_size = tlv.len + sizeof(tlv);
+			*pad_off = cur_off;
+
+			if (*tlv_off == srh_off) {
+				*tlv_off = cur_off;
+				offset_valid = 1;
+			}
+			break;
+
+		} else if (tlv.type == SR6_TLV_HMAC) {
+			break;
+		}
+
+		cur_off += sizeof(tlv) + tlv.len;
+	} // we reached the padding or HMAC TLVs, or the end of the SRH
+
+	if (*pad_off == 0)
+		*pad_off = cur_off;
+
+	if (*tlv_off == -1)
+		*tlv_off = cur_off;
+	else if (!offset_valid)
+		return -EINVAL;
+
+	return 0;
+}
+
+static __always_inline
+int add_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh, uint32_t tlv_off,
+	    struct sr6_tlv_t *itlv, uint8_t tlv_size)
+{
+	uint32_t srh_off = (char *)srh - (char *)(long)skb->data;
+	uint8_t len_remaining, new_pad;
+	uint32_t pad_off = 0;
+	uint32_t pad_size = 0;
+	uint32_t partial_srh_len;
+	int err;
+
+	if (tlv_off != -1)
+		tlv_off += srh_off;
+
+	if (itlv->type == SR6_TLV_PADDING || itlv->type == SR6_TLV_HMAC)
+		return -EINVAL;
+
+	err = is_valid_tlv_boundary(skb, srh, &tlv_off, &pad_size, &pad_off);
+	if (err)
+		return err;
+
+	err = bpf_lwt_seg6_adjust_srh(skb, tlv_off, sizeof(*itlv) + itlv->len);
+	if (err)
+		return err;
+
+	err = bpf_lwt_seg6_store_bytes(skb, tlv_off, (void *)itlv, tlv_size);
+	if (err)
+		return err;
+
+	// the following can't be moved inside update_tlv_pad because the
+	// bpf verifier has some issues with it
+	pad_off += sizeof(*itlv) + itlv->len;
+	partial_srh_len = pad_off - srh_off;
+	len_remaining = partial_srh_len % 8;
+	new_pad = 8 - len_remaining;
+
+	if (new_pad == 1) // cannot pad for 1 byte only
+		new_pad = 9;
+	else if (new_pad == 8)
+		new_pad = 0;
+
+	return update_tlv_pad(skb, new_pad, pad_size, pad_off);
+}
+
+static __always_inline
+int delete_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh,
+	       uint32_t tlv_off)
+{
+	uint32_t srh_off = (char *)srh - (char *)(long)skb->data;
+	uint8_t len_remaining, new_pad;
+	uint32_t partial_srh_len;
+	uint32_t pad_off = 0;
+	uint32_t pad_size = 0;
+	struct sr6_tlv_t tlv;
+	int err;
+
+	tlv_off += srh_off;
+
+	err = is_valid_tlv_boundary(skb, srh, &tlv_off, &pad_size, &pad_off);
+	if (err)
+		return err;
+
+	err = bpf_skb_load_bytes(skb, tlv_off, &tlv, sizeof(tlv));
+	if (err)
+		return err;
+
+	err = bpf_lwt_seg6_adjust_srh(skb, tlv_off, -(sizeof(tlv) + tlv.len));
+	if (err)
+		return err;
+
+	pad_off -= sizeof(tlv) + tlv.len;
+	partial_srh_len = pad_off - srh_off;
+	len_remaining = partial_srh_len % 8;
+	new_pad = 8 - len_remaining;
+	if (new_pad == 1) // cannot pad for 1 byte only
+		new_pad = 9;
+	else if (new_pad == 8)
+		new_pad = 0;
+
+	return update_tlv_pad(skb, new_pad, pad_size, pad_off);
+}
+
+static __always_inline
+int has_egr_tlv(struct __sk_buff *skb, struct ip6_srh_t *srh)
+{
+	int tlv_offset = sizeof(struct ip6_t) + sizeof(struct ip6_srh_t) +
+		((srh->first_segment + 1) << 4);
+	struct sr6_tlv_t tlv;
+
+	if (bpf_skb_load_bytes(skb, tlv_offset, &tlv, sizeof(struct sr6_tlv_t)))
+		return 0;
+
+	if (tlv.type == SR6_TLV_EGRESS && tlv.len == 18) {
+		struct ip6_addr_t egr_addr;
+
+		if (bpf_skb_load_bytes(skb, tlv_offset + 4, &egr_addr, 16))
+			return 0;
+
+		// check if egress TLV value is correct
+		if (bpf_be64_to_cpu(egr_addr.hi) == 0xfd00000000000000 &&
+		    bpf_be64_to_cpu(egr_addr.lo) == 0x4)
+			return 1;
+	}
+
+	return 0;
+}
+
+// This function will push a SRH with segments fd00::1, fd00::2, fd00::3,
+// fd00::4
+SEC("encap_srh")
+int __encap_srh(struct __sk_buff *skb)
+{
+	unsigned long long hi = 0xfd00000000000000;
+	struct ip6_addr_t *seg;
+	struct ip6_srh_t *srh;
+	char srh_buf[72]; // room for 4 segments
+	int err;
+
+	srh = (struct ip6_srh_t *)srh_buf;
+	srh->nexthdr = 0;
+	srh->hdrlen = 8;
+	srh->type = 4;
+	srh->segments_left = 3;
+	srh->first_segment = 3;
+	srh->flags = 0;
+	srh->tag = 0;
+
+	seg = (struct ip6_addr_t *)((char *)srh + sizeof(*srh));
+
+	__pragma_loop_unroll_full
+	for (unsigned long long lo = 0; lo < 4; lo++) {
+		seg->lo = bpf_cpu_to_be64(4 - lo);
+		seg->hi = bpf_cpu_to_be64(hi);
+		seg = (struct ip6_addr_t *)((char *)seg + sizeof(*seg));
+	}
+
+	err = bpf_lwt_push_encap(skb, 0, (void *)srh, sizeof(srh_buf));
+	if (err)
+		return BPF_DROP;
+
+	return BPF_REDIRECT;
+}
+
+// Add an Egress TLV fc00::4, add the flag A,
+// and apply End.X action to fc42::1
+SEC("add_egr_x")
+int __add_egr_x(struct __sk_buff *skb)
+{
+	unsigned long long hi = 0xfc42000000000000;
+	unsigned long long lo = 0x1;
+	struct ip6_srh_t *srh = get_srh(skb);
+	uint8_t new_flags = SR6_FLAG_ALERT;
+	struct ip6_addr_t addr;
+	int err, offset;
+
+	if (srh == NULL)
+		return BPF_DROP;
+
+	uint8_t tlv[20] = {2, 18, 0, 0, 0xfd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+			   0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4};
+
+	err = add_tlv(skb, srh, (srh->hdrlen+1) << 3,
+		      (struct sr6_tlv_t *)&tlv, 20);
+	if (err)
+		return BPF_DROP;
+
+	offset = sizeof(struct ip6_t) + offsetof(struct ip6_srh_t, flags);
+	err = bpf_lwt_seg6_store_bytes(skb, offset,
+				       (void *)&new_flags, sizeof(new_flags));
+	if (err)
+		return BPF_DROP;
+
+	addr.lo = bpf_cpu_to_be64(lo);
+	addr.hi = bpf_cpu_to_be64(hi);
+	err = bpf_lwt_seg6_action(skb, SEG6_LOCAL_ACTION_END_X,
+				  (void *)&addr, sizeof(addr));
+	if (err)
+		return BPF_DROP;
+	return BPF_REDIRECT;
+}
+
+// Pop the Egress TLV, reset the flags, change the tag 2442 and finally do a
+// simple End action
+SEC("pop_egr")
+int __pop_egr(struct __sk_buff *skb)
+{
+	struct ip6_srh_t *srh = get_srh(skb);
+	uint16_t new_tag = bpf_htons(2442);
+	uint8_t new_flags = 0;
+	int err, offset;
+
+	if (srh == NULL)
+		return BPF_DROP;
+
+	if (srh->flags != SR6_FLAG_ALERT)
+		return BPF_DROP;
+
+	if (srh->hdrlen != 11) // 4 segments + Egress TLV + Padding TLV
+		return BPF_DROP;
+
+	if (!has_egr_tlv(skb, srh))
+		return BPF_DROP;
+
+	err = delete_tlv(skb, srh, 8 + (srh->first_segment + 1) * 16);
+	if (err)
+		return BPF_DROP;
+
+	offset = sizeof(struct ip6_t) + offsetof(struct ip6_srh_t, flags);
+	if (bpf_lwt_seg6_store_bytes(skb, offset, (void *)&new_flags,
+				     sizeof(new_flags)))
+		return BPF_DROP;
+
+	offset = sizeof(struct ip6_t) + offsetof(struct ip6_srh_t, tag);
+	if (bpf_lwt_seg6_store_bytes(skb, offset, (void *)&new_tag,
+				     sizeof(new_tag)))
+		return BPF_DROP;
+
+	return BPF_OK;
+}
+
+// Inspect if the Egress TLV and flag have been removed, if the tag is correct,
+// then apply a End.T action to reach the last segment
+SEC("inspect_t")
+int __inspect_t(struct __sk_buff *skb)
+{
+	struct ip6_srh_t *srh = get_srh(skb);
+	int table = 117;
+	int err;
+
+	if (srh == NULL)
+		return BPF_DROP;
+
+	if (srh->flags != 0)
+		return BPF_DROP;
+
+	if (srh->tag != bpf_htons(2442))
+		return BPF_DROP;
+
+	if (srh->hdrlen != 8) // 4 segments
+		return BPF_DROP;
+
+	err = bpf_lwt_seg6_action(skb, SEG6_LOCAL_ACTION_END_T,
+				  (void *)&table, sizeof(table));
+
+	if (err)
+		return BPF_DROP;
+
+	return BPF_REDIRECT;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_in_map.c b/tools/testing/selftests/bpf/progs/test_map_in_map.c
new file mode 100644
index 000000000000..b295f9b721bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_in_map.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Facebook */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__uint(map_flags, 0);
+	__type(key, __u32);
+	__type(value, __u32);
+} mim_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 1);
+	__uint(map_flags, 0);
+	__type(key, int);
+	__type(value, __u32);
+} mim_hash SEC(".maps");
+
+/* The following three maps are used to test
+ * perf_event_array map can be an inner
+ * map of hash/array_of_maps.
+ */
+struct perf_event_array {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+} inner_map0 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__array(values, struct perf_event_array);
+} mim_array_pe SEC(".maps") = {
+	.values = {&inner_map0}};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__array(values, struct perf_event_array);
+} mim_hash_pe SEC(".maps") = {
+	.values = {&inner_map0}};
+
+SEC("xdp")
+int xdp_mimtest0(struct xdp_md *ctx)
+{
+	int value = 123;
+	int *value_p;
+	int key = 0;
+	void *map;
+
+	map = bpf_map_lookup_elem(&mim_array, &key);
+	if (!map)
+		return XDP_DROP;
+
+	bpf_map_update_elem(map, &key, &value, 0);
+	value_p = bpf_map_lookup_elem(map, &key);
+	if (!value_p || *value_p != 123)
+		return XDP_DROP;
+
+	map = bpf_map_lookup_elem(&mim_hash, &key);
+	if (!map)
+		return XDP_DROP;
+
+	bpf_map_update_elem(map, &key, &value, 0);
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_in_map_invalid.c b/tools/testing/selftests/bpf/progs/test_map_in_map_invalid.c
new file mode 100644
index 000000000000..9c7d75cf0bd6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_in_map_invalid.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Isovalent, Inc. */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct inner {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, int);
+	__uint(max_entries, 4);
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 0); /* This will make map creation to fail */
+	__type(key, __u32);
+	__array(values, struct inner);
+} mim SEC(".maps");
+
+SEC("xdp")
+int xdp_noop0(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_init.c b/tools/testing/selftests/bpf/progs/test_map_init.c
new file mode 100644
index 000000000000..c89d28ead673
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_init.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Tessares SA <http://www.tessares.net> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+__u64 inKey = 0;
+__u64 inValue = 0;
+__u32 inPid = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 2);
+	__type(key, __u64);
+	__type(value, __u64);
+} hashmap1 SEC(".maps");
+
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int sysenter_getpgid(const void *ctx)
+{
+	/* Just do it for once, when called from our own test prog. This
+	 * ensures the map value is only updated for a single CPU.
+	 */
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (cur_pid == inPid)
+		bpf_map_update_elem(&hashmap1, &inKey, &inValue, BPF_NOEXIST);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_lock.c b/tools/testing/selftests/bpf/progs/test_map_lock.c
new file mode 100644
index 000000000000..1c02511b73cd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_lock.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <linux/version.h>
+#include <bpf/bpf_helpers.h>
+
+#define VAR_NUM 16
+
+struct hmap_elem {
+	struct bpf_spin_lock lock;
+	int var[VAR_NUM];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct hmap_elem);
+} hash_map SEC(".maps");
+
+struct array_elem {
+	struct bpf_spin_lock lock;
+	int var[VAR_NUM];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct array_elem);
+} array_map SEC(".maps");
+
+SEC("cgroup/skb")
+int bpf_map_lock_test(struct __sk_buff *skb)
+{
+	struct hmap_elem *val;
+	int rnd = bpf_get_prandom_u32();
+	int key = 0, err = 1, i;
+	struct array_elem *q;
+
+	val = bpf_map_lookup_elem(&hash_map, &key);
+	if (!val)
+		goto err;
+	/* spin_lock in hash map */
+	bpf_spin_lock(&val->lock);
+	for (i = 0; i < VAR_NUM; i++)
+		val->var[i] = rnd;
+	bpf_spin_unlock(&val->lock);
+
+	/* spin_lock in array */
+	q = bpf_map_lookup_elem(&array_map, &key);
+	if (!q)
+		goto err;
+	bpf_spin_lock(&q->lock);
+	for (i = 0; i < VAR_NUM; i++)
+		q->var[i] = rnd;
+	bpf_spin_unlock(&q->lock);
+	err = 0;
+err:
+	return err;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_lookup_percpu_elem.c b/tools/testing/selftests/bpf/progs/test_map_lookup_percpu_elem.c
new file mode 100644
index 000000000000..ca827b1092da
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_lookup_percpu_elem.c
@@ -0,0 +1,76 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+__u64 percpu_array_elem_sum = 0;
+__u64 percpu_hash_elem_sum = 0;
+__u64 percpu_lru_hash_elem_sum = 0;
+const volatile int nr_cpus;
+const volatile int my_pid;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} percpu_array_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u64);
+	__type(value, __u64);
+} percpu_hash_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u64);
+	__type(value, __u64);
+} percpu_lru_hash_map SEC(".maps");
+
+struct read_percpu_elem_ctx {
+	void *map;
+	__u64 sum;
+};
+
+static int read_percpu_elem_callback(__u32 index, struct read_percpu_elem_ctx *ctx)
+{
+	__u64 key = 0;
+	__u64 *value;
+
+	value = bpf_map_lookup_percpu_elem(ctx->map, &key, index);
+	if (value)
+		ctx->sum += *value;
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getuid")
+int sysenter_getuid(const void *ctx)
+{
+	struct read_percpu_elem_ctx map_ctx;
+
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	map_ctx.map = &percpu_array_map;
+	map_ctx.sum = 0;
+	bpf_loop(nr_cpus, read_percpu_elem_callback, &map_ctx, 0);
+	percpu_array_elem_sum = map_ctx.sum;
+
+	map_ctx.map = &percpu_hash_map;
+	map_ctx.sum = 0;
+	bpf_loop(nr_cpus, read_percpu_elem_callback, &map_ctx, 0);
+	percpu_hash_elem_sum = map_ctx.sum;
+
+	map_ctx.map = &percpu_lru_hash_map;
+	map_ctx.sum = 0;
+	bpf_loop(nr_cpus, read_percpu_elem_callback, &map_ctx, 0);
+	percpu_lru_hash_elem_sum = map_ctx.sum;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_map_ops.c b/tools/testing/selftests/bpf/progs/test_map_ops.c
new file mode 100644
index 000000000000..b53b46a090c8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_map_ops.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} hash_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK);
+	__uint(max_entries, 1);
+	__type(value, int);
+} stack_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} array_map SEC(".maps");
+
+const volatile pid_t pid;
+long err = 0;
+
+static u64 callback(u64 map, u64 key, u64 val, u64 ctx, u64 flags)
+{
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getpid")
+int map_update(void *ctx)
+{
+	const int key = 0;
+	const int val = 1;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	err = bpf_map_update_elem(&hash_map, &key, &val, BPF_NOEXIST);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getppid")
+int map_delete(void *ctx)
+{
+	const int key = 0;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	err = bpf_map_delete_elem(&hash_map, &key);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getuid")
+int map_push(void *ctx)
+{
+	const int val = 1;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	err = bpf_map_push_elem(&stack_map, &val, 0);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_geteuid")
+int map_pop(void *ctx)
+{
+	int val;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	err = bpf_map_pop_elem(&stack_map, &val);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getgid")
+int map_peek(void *ctx)
+{
+	int val;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	err = bpf_map_peek_elem(&stack_map, &val);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_gettid")
+int map_for_each_pass(void *ctx)
+{
+	const int key = 0;
+	const int val = 1;
+	const u64 flags = 0;
+	int callback_ctx;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	bpf_map_update_elem(&array_map, &key, &val, flags);
+
+	err = bpf_for_each_map_elem(&array_map, callback, &callback_ctx, flags);
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int map_for_each_fail(void *ctx)
+{
+	const int key = 0;
+	const int val = 1;
+	const u64 flags = BPF_NOEXIST;
+	int callback_ctx;
+
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	bpf_map_update_elem(&array_map, &key, &val, flags);
+
+	/* calling for_each with non-zero flags will return error */
+	err = bpf_for_each_map_elem(&array_map, callback, &callback_ctx, flags);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c b/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c
new file mode 100644
index 000000000000..27df571abf5b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_migrate_reuseport.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check if we can migrate child sockets.
+ *
+ *   1. If reuse_md->migrating_sk is NULL (SYN packet),
+ *        return SK_PASS without selecting a listener.
+ *   2. If reuse_md->migrating_sk is not NULL (socket migration),
+ *        select a listener (reuseport_map[migrate_map[cookie]])
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/in.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, 256);
+	__type(key, int);
+	__type(value, __u64);
+} reuseport_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 256);
+	__type(key, __u64);
+	__type(value, int);
+} migrate_map SEC(".maps");
+
+int migrated_at_close = 0;
+int migrated_at_close_fastopen = 0;
+int migrated_at_send_synack = 0;
+int migrated_at_recv_ack = 0;
+__be16 server_port;
+
+SEC("xdp")
+int drop_ack(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	struct tcphdr *tcp = NULL;
+
+	if (eth + 1 > data_end)
+		goto pass;
+
+	switch (bpf_ntohs(eth->h_proto)) {
+	case ETH_P_IP: {
+		struct iphdr *ip = (struct iphdr *)(eth + 1);
+
+		if (ip + 1 > data_end)
+			goto pass;
+
+		if (ip->protocol != IPPROTO_TCP)
+			goto pass;
+
+		tcp = (struct tcphdr *)((void *)ip + ip->ihl * 4);
+		break;
+	}
+	case ETH_P_IPV6: {
+		struct ipv6hdr *ipv6 = (struct ipv6hdr *)(eth + 1);
+
+		if (ipv6 + 1 > data_end)
+			goto pass;
+
+		if (ipv6->nexthdr != IPPROTO_TCP)
+			goto pass;
+
+		tcp = (struct tcphdr *)(ipv6 + 1);
+		break;
+	}
+	default:
+		goto pass;
+	}
+
+	if (tcp + 1 > data_end)
+		goto pass;
+
+	if (tcp->dest != server_port)
+		goto pass;
+
+	if (!tcp->syn && tcp->ack)
+		return XDP_DROP;
+
+pass:
+	return XDP_PASS;
+}
+
+SEC("sk_reuseport/migrate")
+int migrate_reuseport(struct sk_reuseport_md *reuse_md)
+{
+	int *key, flags = 0, state, err;
+	__u64 cookie;
+
+	if (!reuse_md->migrating_sk)
+		return SK_PASS;
+
+	state = reuse_md->migrating_sk->state;
+	cookie = bpf_get_socket_cookie(reuse_md->sk);
+
+	key = bpf_map_lookup_elem(&migrate_map, &cookie);
+	if (!key)
+		return SK_DROP;
+
+	err = bpf_sk_select_reuseport(reuse_md, &reuseport_map, key, flags);
+	if (err)
+		return SK_PASS;
+
+	switch (state) {
+	case BPF_TCP_ESTABLISHED:
+		__sync_fetch_and_add(&migrated_at_close, 1);
+		break;
+	case BPF_TCP_SYN_RECV:
+		__sync_fetch_and_add(&migrated_at_close_fastopen, 1);
+		break;
+	case BPF_TCP_NEW_SYN_RECV:
+		if (!reuse_md->len)
+			__sync_fetch_and_add(&migrated_at_send_synack, 1);
+		else
+			__sync_fetch_and_add(&migrated_at_recv_ack, 1);
+		break;
+	}
+
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_misc_tcp_hdr_options.c b/tools/testing/selftests/bpf/progs/test_misc_tcp_hdr_options.c
new file mode 100644
index 000000000000..d487153a839d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_misc_tcp_hdr_options.c
@@ -0,0 +1,329 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <stddef.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/socket.h>
+#include <linux/bpf.h>
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#define BPF_PROG_TEST_TCP_HDR_OPTIONS
+#include "test_tcp_hdr_options.h"
+
+__u16 last_addr16_n = __bpf_htons(1);
+__u16 active_lport_n = 0;
+__u16 active_lport_h = 0;
+__u16 passive_lport_n = 0;
+__u16 passive_lport_h = 0;
+
+/* options received at passive side */
+unsigned int nr_pure_ack = 0;
+unsigned int nr_data = 0;
+unsigned int nr_syn = 0;
+unsigned int nr_fin = 0;
+unsigned int nr_hwtstamp = 0;
+
+/* Check the header received from the active side */
+static int __check_active_hdr_in(struct bpf_sock_ops *skops, bool check_syn)
+{
+	union {
+		struct tcphdr th;
+		struct ipv6hdr ip6;
+		struct tcp_exprm_opt exprm_opt;
+		struct tcp_opt reg_opt;
+		__u8 data[100]; /* IPv6 (40) + Max TCP hdr (60) */
+	} hdr = {};
+	__u64 load_flags = check_syn ? BPF_LOAD_HDR_OPT_TCP_SYN : 0;
+	struct tcphdr *pth;
+	int ret;
+
+	hdr.reg_opt.kind = 0xB9;
+
+	/* The option is 4 bytes long instead of 2 bytes */
+	ret = bpf_load_hdr_opt(skops, &hdr.reg_opt, 2, load_flags);
+	if (ret != -ENOSPC)
+		RET_CG_ERR(ret);
+
+	/* Test searching magic with regular kind */
+	hdr.reg_opt.len = 4;
+	ret = bpf_load_hdr_opt(skops, &hdr.reg_opt, sizeof(hdr.reg_opt),
+			       load_flags);
+	if (ret != -EINVAL)
+		RET_CG_ERR(ret);
+
+	hdr.reg_opt.len = 0;
+	ret = bpf_load_hdr_opt(skops, &hdr.reg_opt, sizeof(hdr.reg_opt),
+			       load_flags);
+	if (ret != 4 || hdr.reg_opt.len != 4 || hdr.reg_opt.kind != 0xB9 ||
+	    hdr.reg_opt.data[0] != 0xfa || hdr.reg_opt.data[1] != 0xce)
+		RET_CG_ERR(ret);
+
+	/* Test searching experimental option with invalid kind length */
+	hdr.exprm_opt.kind = TCPOPT_EXP;
+	hdr.exprm_opt.len = 5;
+	hdr.exprm_opt.magic = 0;
+	ret = bpf_load_hdr_opt(skops, &hdr.exprm_opt, sizeof(hdr.exprm_opt),
+			       load_flags);
+	if (ret != -EINVAL)
+		RET_CG_ERR(ret);
+
+	/* Test searching experimental option with 0 magic value */
+	hdr.exprm_opt.len = 4;
+	ret = bpf_load_hdr_opt(skops, &hdr.exprm_opt, sizeof(hdr.exprm_opt),
+			       load_flags);
+	if (ret != -ENOMSG)
+		RET_CG_ERR(ret);
+
+	hdr.exprm_opt.magic = __bpf_htons(0xeB9F);
+	ret = bpf_load_hdr_opt(skops, &hdr.exprm_opt, sizeof(hdr.exprm_opt),
+			       load_flags);
+	if (ret != 4 || hdr.exprm_opt.len != 4 ||
+	    hdr.exprm_opt.kind != TCPOPT_EXP ||
+	    hdr.exprm_opt.magic != __bpf_htons(0xeB9F))
+		RET_CG_ERR(ret);
+
+	if (!check_syn)
+		return CG_OK;
+
+	/* Test loading from skops->syn_skb if sk_state == TCP_NEW_SYN_RECV
+	 *
+	 * Test loading from tp->saved_syn for other sk_state.
+	 */
+	ret = bpf_getsockopt(skops, SOL_TCP, TCP_BPF_SYN_IP, &hdr.ip6,
+			     sizeof(hdr.ip6));
+	if (ret != -ENOSPC)
+		RET_CG_ERR(ret);
+
+	if (hdr.ip6.saddr.s6_addr16[7] != last_addr16_n ||
+	    hdr.ip6.daddr.s6_addr16[7] != last_addr16_n)
+		RET_CG_ERR(0);
+
+	ret = bpf_getsockopt(skops, SOL_TCP, TCP_BPF_SYN_IP, &hdr, sizeof(hdr));
+	if (ret < 0)
+		RET_CG_ERR(ret);
+
+	pth = (struct tcphdr *)(&hdr.ip6 + 1);
+	if (pth->dest != passive_lport_n || pth->source != active_lport_n)
+		RET_CG_ERR(0);
+
+	ret = bpf_getsockopt(skops, SOL_TCP, TCP_BPF_SYN, &hdr, sizeof(hdr));
+	if (ret < 0)
+		RET_CG_ERR(ret);
+
+	if (hdr.th.dest != passive_lport_n || hdr.th.source != active_lport_n)
+		RET_CG_ERR(0);
+
+	return CG_OK;
+}
+
+static int check_active_syn_in(struct bpf_sock_ops *skops)
+{
+	return __check_active_hdr_in(skops, true);
+}
+
+static int check_active_hdr_in(struct bpf_sock_ops *skops)
+{
+	struct tcphdr *th;
+
+	if (__check_active_hdr_in(skops, false) == CG_ERR)
+		return CG_ERR;
+
+	th = skops->skb_data;
+	if (th + 1 > skops->skb_data_end)
+		RET_CG_ERR(0);
+
+	if (tcp_hdrlen(th) < skops->skb_len)
+		nr_data++;
+
+	if (th->fin)
+		nr_fin++;
+
+	if (th->ack && !th->fin && tcp_hdrlen(th) == skops->skb_len)
+		nr_pure_ack++;
+
+	if (skops->skb_hwtstamp)
+		nr_hwtstamp++;
+
+	return CG_OK;
+}
+
+static int active_opt_len(struct bpf_sock_ops *skops)
+{
+	int err;
+
+	/* Reserve more than enough to allow the -EEXIST test in
+	 * the write_active_opt().
+	 */
+	err = bpf_reserve_hdr_opt(skops, 12, 0);
+	if (err)
+		RET_CG_ERR(err);
+
+	return CG_OK;
+}
+
+static int write_active_opt(struct bpf_sock_ops *skops)
+{
+	struct tcp_exprm_opt exprm_opt = {};
+	struct tcp_opt win_scale_opt = {};
+	struct tcp_opt reg_opt = {};
+	struct tcphdr *th;
+	int err, ret;
+
+	exprm_opt.kind = TCPOPT_EXP;
+	exprm_opt.len = 4;
+	exprm_opt.magic = __bpf_htons(0xeB9F);
+
+	reg_opt.kind = 0xB9;
+	reg_opt.len = 4;
+	reg_opt.data[0] = 0xfa;
+	reg_opt.data[1] = 0xce;
+
+	win_scale_opt.kind = TCPOPT_WINDOW;
+
+	err = bpf_store_hdr_opt(skops, &exprm_opt, sizeof(exprm_opt), 0);
+	if (err)
+		RET_CG_ERR(err);
+
+	/* Store the same exprm option */
+	err = bpf_store_hdr_opt(skops, &exprm_opt, sizeof(exprm_opt), 0);
+	if (err != -EEXIST)
+		RET_CG_ERR(err);
+
+	err = bpf_store_hdr_opt(skops, &reg_opt, sizeof(reg_opt), 0);
+	if (err)
+		RET_CG_ERR(err);
+	err = bpf_store_hdr_opt(skops, &reg_opt, sizeof(reg_opt), 0);
+	if (err != -EEXIST)
+		RET_CG_ERR(err);
+
+	/* Check the option has been written and can be searched */
+	ret = bpf_load_hdr_opt(skops, &exprm_opt, sizeof(exprm_opt), 0);
+	if (ret != 4 || exprm_opt.len != 4 || exprm_opt.kind != TCPOPT_EXP ||
+	    exprm_opt.magic != __bpf_htons(0xeB9F))
+		RET_CG_ERR(ret);
+
+	reg_opt.len = 0;
+	ret = bpf_load_hdr_opt(skops, &reg_opt, sizeof(reg_opt), 0);
+	if (ret != 4 || reg_opt.len != 4 || reg_opt.kind != 0xB9 ||
+	    reg_opt.data[0] != 0xfa || reg_opt.data[1] != 0xce)
+		RET_CG_ERR(ret);
+
+	th = skops->skb_data;
+	if (th + 1 > skops->skb_data_end)
+		RET_CG_ERR(0);
+
+	if (th->syn) {
+		active_lport_h = skops->local_port;
+		active_lport_n = th->source;
+
+		/* Search the win scale option written by kernel
+		 * in the SYN packet.
+		 */
+		ret = bpf_load_hdr_opt(skops, &win_scale_opt,
+				       sizeof(win_scale_opt), 0);
+		if (ret != 3 || win_scale_opt.len != 3 ||
+		    win_scale_opt.kind != TCPOPT_WINDOW)
+			RET_CG_ERR(ret);
+
+		/* Write the win scale option that kernel
+		 * has already written.
+		 */
+		err = bpf_store_hdr_opt(skops, &win_scale_opt,
+					sizeof(win_scale_opt), 0);
+		if (err != -EEXIST)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int handle_hdr_opt_len(struct bpf_sock_ops *skops)
+{
+	__u8 tcp_flags = skops_tcp_flags(skops);
+
+	if ((tcp_flags & TCPHDR_SYNACK) == TCPHDR_SYNACK)
+		/* Check the SYN from bpf_sock_ops_kern->syn_skb */
+		return check_active_syn_in(skops);
+
+	/* Passive side should have cleared the write hdr cb by now */
+	if (skops->local_port == passive_lport_h)
+		RET_CG_ERR(0);
+
+	return active_opt_len(skops);
+}
+
+static int handle_write_hdr_opt(struct bpf_sock_ops *skops)
+{
+	if (skops->local_port == passive_lport_h)
+		RET_CG_ERR(0);
+
+	return write_active_opt(skops);
+}
+
+static int handle_parse_hdr(struct bpf_sock_ops *skops)
+{
+	/* Passive side is not writing any non-standard/unknown
+	 * option, so the active side should never be called.
+	 */
+	if (skops->local_port == active_lport_h)
+		RET_CG_ERR(0);
+
+	return check_active_hdr_in(skops);
+}
+
+static int handle_passive_estab(struct bpf_sock_ops *skops)
+{
+	int err;
+
+	/* No more write hdr cb */
+	bpf_sock_ops_cb_flags_set(skops,
+				  skops->bpf_sock_ops_cb_flags &
+				  ~BPF_SOCK_OPS_WRITE_HDR_OPT_CB_FLAG);
+
+	/* Recheck the SYN but check the tp->saved_syn this time */
+	err = check_active_syn_in(skops);
+	if (err == CG_ERR)
+		return err;
+
+	nr_syn++;
+
+	/* The ack has header option written by the active side also */
+	return check_active_hdr_in(skops);
+}
+
+SEC("sockops")
+int misc_estab(struct bpf_sock_ops *skops)
+{
+	int true_val = 1;
+
+	switch (skops->op) {
+	case BPF_SOCK_OPS_TCP_LISTEN_CB:
+		passive_lport_h = skops->local_port;
+		passive_lport_n = __bpf_htons(passive_lport_h);
+		bpf_setsockopt(skops, SOL_TCP, TCP_SAVE_SYN,
+			       &true_val, sizeof(true_val));
+		set_hdr_cb_flags(skops, 0);
+		break;
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+		set_hdr_cb_flags(skops, 0);
+		break;
+	case BPF_SOCK_OPS_PARSE_HDR_OPT_CB:
+		return handle_parse_hdr(skops);
+	case BPF_SOCK_OPS_HDR_OPT_LEN_CB:
+		return handle_hdr_opt_len(skops);
+	case BPF_SOCK_OPS_WRITE_HDR_OPT_CB:
+		return handle_write_hdr_opt(skops);
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		return handle_passive_estab(skops);
+	}
+
+	return CG_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_mmap.c b/tools/testing/selftests/bpf/progs/test_mmap.c
new file mode 100644
index 000000000000..5a5cc19a15bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_mmap.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(map_flags, BPF_F_MMAPABLE | BPF_F_RDONLY_PROG);
+	__type(key, __u32);
+	__type(value, char);
+} rdonly_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__type(key, __u32);
+	__type(value, __u64);
+} data_map SEC(".maps");
+
+__u64 in_val = 0;
+__u64 out_val = 0;
+
+SEC("raw_tracepoint/sys_enter")
+int test_mmap(void *ctx)
+{
+	int zero = 0, one = 1, two = 2, far = 1500;
+	__u64 val, *p;
+
+	out_val = in_val;
+
+	/* data_map[2] = in_val; */
+	bpf_map_update_elem(&data_map, &two, (const void *)&in_val, 0);
+
+	/* data_map[1] = data_map[0] * 2; */
+	p = bpf_map_lookup_elem(&data_map, &zero);
+	if (p) {
+		val = (*p) * 2;
+		bpf_map_update_elem(&data_map, &one, &val, 0);
+	}
+
+	/* data_map[far] = in_val * 3; */
+	val = in_val * 3;
+	bpf_map_update_elem(&data_map, &far, &val, 0);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/bpf/progs/test_module_attach.c b/tools/testing/selftests/bpf/progs/test_module_attach.c
new file mode 100644
index 000000000000..03d7f89787a1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_module_attach.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "../test_kmods/bpf_testmod.h"
+
+__u32 raw_tp_read_sz = 0;
+
+SEC("raw_tp/bpf_testmod_test_read")
+int BPF_PROG(handle_raw_tp,
+	     struct task_struct *task, struct bpf_testmod_test_read_ctx *read_ctx)
+{
+	raw_tp_read_sz = BPF_CORE_READ(read_ctx, len);
+	return 0;
+}
+
+__u32 raw_tp_bare_write_sz = 0;
+
+SEC("raw_tp/bpf_testmod_test_write_bare_tp")
+int BPF_PROG(handle_raw_tp_bare,
+	     struct task_struct *task, struct bpf_testmod_test_write_ctx *write_ctx)
+{
+	raw_tp_bare_write_sz = BPF_CORE_READ(write_ctx, len);
+	return 0;
+}
+
+int raw_tp_writable_bare_in_val = 0;
+int raw_tp_writable_bare_early_ret = 0;
+int raw_tp_writable_bare_out_val = 0;
+
+SEC("raw_tp.w/bpf_testmod_test_writable_bare_tp")
+int BPF_PROG(handle_raw_tp_writable_bare,
+	     struct bpf_testmod_test_writable_ctx *writable)
+{
+	raw_tp_writable_bare_in_val = writable->val;
+	writable->early_ret = raw_tp_writable_bare_early_ret;
+	writable->val = raw_tp_writable_bare_out_val;
+	return 0;
+}
+
+__u32 tp_btf_read_sz = 0;
+
+SEC("tp_btf/bpf_testmod_test_read")
+int BPF_PROG(handle_tp_btf,
+	     struct task_struct *task, struct bpf_testmod_test_read_ctx *read_ctx)
+{
+	tp_btf_read_sz = read_ctx->len;
+	return 0;
+}
+
+__u32 fentry_read_sz = 0;
+
+SEC("fentry/bpf_testmod_test_read")
+int BPF_PROG(handle_fentry,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	fentry_read_sz = len;
+	return 0;
+}
+
+__u32 fentry_manual_read_sz = 0;
+
+SEC("fentry")
+int BPF_PROG(handle_fentry_manual,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	fentry_manual_read_sz = len;
+	return 0;
+}
+
+__u32 fentry_explicit_read_sz = 0;
+
+SEC("fentry/bpf_testmod:bpf_testmod_test_read")
+int BPF_PROG(handle_fentry_explicit,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	fentry_explicit_read_sz = len;
+	return 0;
+}
+
+
+__u32 fentry_explicit_manual_read_sz = 0;
+
+SEC("fentry")
+int BPF_PROG(handle_fentry_explicit_manual,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	fentry_explicit_manual_read_sz = len;
+	return 0;
+}
+
+__u32 fexit_read_sz = 0;
+int fexit_ret = 0;
+
+SEC("fexit/bpf_testmod_test_read")
+int BPF_PROG(handle_fexit,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len,
+	     int ret)
+{
+	fexit_read_sz = len;
+	fexit_ret = ret;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_return_ptr")
+int BPF_PROG(handle_fexit_ret, int arg, struct file *ret)
+{
+	long buf = 0;
+
+	bpf_probe_read_kernel(&buf, 8, ret);
+	bpf_probe_read_kernel(&buf, 8, (char *)ret + 256);
+	*(volatile int *)ret;
+	*(volatile int *)&ret->f_mode;
+	return 0;
+}
+
+__u32 fmod_ret_read_sz = 0;
+
+SEC("fmod_ret/bpf_testmod_test_read")
+int BPF_PROG(handle_fmod_ret,
+	     struct file *file, struct kobject *kobj,
+	     struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len)
+{
+	fmod_ret_read_sz = len;
+	return 0; /* don't override the exit code */
+}
+
+SEC("kprobe.multi/bpf_testmod_test_read")
+int BPF_PROG(kprobe_multi)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_netfilter_link_attach.c b/tools/testing/selftests/bpf/progs/test_netfilter_link_attach.c
new file mode 100644
index 000000000000..03a475160abe
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_netfilter_link_attach.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#define NF_ACCEPT 1
+
+SEC("netfilter")
+int nf_link_attach_test(struct bpf_nf_ctx *ctx)
+{
+	return NF_ACCEPT;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c b/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c
new file mode 100644
index 000000000000..386315afad65
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ns_current_pid_tgid.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Carlos Neira cneirabustos@gmail.com */
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u32);
+} sock_map SEC(".maps");
+
+__u64 user_pid = 0;
+__u64 user_tgid = 0;
+__u64 dev = 0;
+__u64 ino = 0;
+
+static void get_pid_tgid(void)
+{
+	struct bpf_pidns_info nsdata;
+
+	if (bpf_get_ns_current_pid_tgid(dev, ino, &nsdata, sizeof(struct bpf_pidns_info)))
+		return;
+
+	user_pid = nsdata.pid;
+	user_tgid = nsdata.tgid;
+}
+
+SEC("?tracepoint/syscalls/sys_enter_nanosleep")
+int tp_handler(const void *ctx)
+{
+	get_pid_tgid();
+	return 0;
+}
+
+SEC("?cgroup/bind4")
+int cgroup_bind4(struct bpf_sock_addr *ctx)
+{
+	get_pid_tgid();
+	return 1;
+}
+
+SEC("?sk_msg")
+int sk_msg(struct sk_msg_md *msg)
+{
+	get_pid_tgid();
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_obj_id.c b/tools/testing/selftests/bpf/progs/test_obj_id.c
new file mode 100644
index 000000000000..2850ae788a91
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_obj_id.c
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2017 Facebook
+ */
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} test_map_id SEC(".maps");
+
+SEC("raw_tp/sys_enter")
+int test_obj_id(void *ctx)
+{
+	__u32 key = 0;
+	__u64 *value;
+
+	value = bpf_map_lookup_elem(&test_map_id, &key);
+	__sink(value);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_overhead.c b/tools/testing/selftests/bpf/progs/test_overhead.c
new file mode 100644
index 000000000000..5edf3cdc213d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_overhead.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct task_struct;
+
+SEC("kprobe/__set_task_comm")
+int BPF_KPROBE(prog1, struct task_struct *tsk, const char *buf, bool exec)
+{
+	return !tsk;
+}
+
+SEC("kretprobe/__set_task_comm")
+int BPF_KRETPROBE(prog2, int ret)
+{
+	return ret;
+}
+
+SEC("raw_tp/task_rename")
+int prog3(struct bpf_raw_tracepoint_args *ctx)
+{
+	return !ctx->args[0];
+}
+
+SEC("fentry/__set_task_comm")
+int BPF_PROG(prog4, struct task_struct *tsk, const char *buf, bool exec)
+{
+	return 0;
+}
+
+SEC("fexit/__set_task_comm")
+int BPF_PROG(prog5, struct task_struct *tsk, const char *buf, bool exec)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c
new file mode 100644
index 000000000000..d9b2ba7ac340
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* This parsing logic is taken from the open source library katran, a layer 4
+ * load balancer.
+ *
+ * This code logic using dynptrs can be found in test_parse_tcp_hdr_opt_dynptr.c
+ *
+ * https://github.com/facebookincubator/katran/blob/main/katran/lib/bpf/pckt_parsing.h
+ */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/tcp.h>
+#include <stdbool.h>
+#include <linux/ipv6.h>
+#include <linux/if_ether.h>
+#include "test_tcp_hdr_options.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Kind number used for experiments */
+const __u32 tcp_hdr_opt_kind_tpr = 0xFD;
+/* Length of the tcp header option */
+const __u32 tcp_hdr_opt_len_tpr = 6;
+/* maximum number of header options to check to lookup server_id */
+const __u32 tcp_hdr_opt_max_opt_checks = 15;
+
+__u32 server_id;
+
+struct hdr_opt_state {
+	__u32 server_id;
+	__u8 byte_offset;
+	__u8 hdr_bytes_remaining;
+};
+
+static int parse_hdr_opt(const struct xdp_md *xdp, struct hdr_opt_state *state)
+{
+	const void *data = (void *)(long)xdp->data;
+	const void *data_end = (void *)(long)xdp->data_end;
+	__u8 *tcp_opt, kind, hdr_len;
+
+	tcp_opt = (__u8 *)(data + state->byte_offset);
+	if (tcp_opt + 1 > data_end)
+		return -1;
+
+	kind = tcp_opt[0];
+
+	if (kind == TCPOPT_EOL)
+		return -1;
+
+	if (kind == TCPOPT_NOP) {
+		state->hdr_bytes_remaining--;
+		state->byte_offset++;
+		return 0;
+	}
+
+	if (state->hdr_bytes_remaining < 2 ||
+	    tcp_opt + sizeof(__u8) + sizeof(__u8) > data_end)
+		return -1;
+
+	hdr_len = tcp_opt[1];
+	if (hdr_len > state->hdr_bytes_remaining)
+		return -1;
+
+	if (kind == tcp_hdr_opt_kind_tpr) {
+		if (hdr_len != tcp_hdr_opt_len_tpr)
+			return -1;
+
+		if (tcp_opt + tcp_hdr_opt_len_tpr > data_end)
+			return -1;
+
+		state->server_id = *(__u32 *)&tcp_opt[2];
+		return 1;
+	}
+
+	state->hdr_bytes_remaining -= hdr_len;
+	state->byte_offset += hdr_len;
+	return 0;
+}
+
+SEC("xdp")
+int xdp_ingress_v6(struct xdp_md *xdp)
+{
+	const void *data = (void *)(long)xdp->data;
+	const void *data_end = (void *)(long)xdp->data_end;
+	struct hdr_opt_state opt_state = {};
+	__u8 tcp_hdr_opt_len = 0;
+	struct tcphdr *tcp_hdr;
+	__u64 tcp_offset = 0;
+	int err;
+
+	tcp_offset = sizeof(struct ethhdr) + sizeof(struct ipv6hdr);
+	tcp_hdr = (struct tcphdr *)(data + tcp_offset);
+	if (tcp_hdr + 1 > data_end)
+		return XDP_DROP;
+
+	tcp_hdr_opt_len = (tcp_hdr->doff * 4) - sizeof(struct tcphdr);
+	if (tcp_hdr_opt_len < tcp_hdr_opt_len_tpr)
+		return XDP_DROP;
+
+	opt_state.hdr_bytes_remaining = tcp_hdr_opt_len;
+	opt_state.byte_offset = sizeof(struct tcphdr) + tcp_offset;
+
+	/* max number of bytes of options in tcp header is 40 bytes */
+	for (int i = 0; i < tcp_hdr_opt_max_opt_checks; i++) {
+		err = parse_hdr_opt(xdp, &opt_state);
+
+		if (err || !opt_state.hdr_bytes_remaining)
+			break;
+	}
+
+	if (!opt_state.server_id)
+		return XDP_DROP;
+
+	server_id = opt_state.server_id;
+
+	return XDP_PASS;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt_dynptr.c b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt_dynptr.c
new file mode 100644
index 000000000000..dc6e43bc6a62
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_parse_tcp_hdr_opt_dynptr.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* This logic is lifted from a real-world use case of packet parsing, used in
+ * the open source library katran, a layer 4 load balancer.
+ *
+ * This test demonstrates how to parse packet contents using dynptrs. The
+ * original code (parsing without dynptrs) can be found in test_parse_tcp_hdr_opt.c
+ */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/tcp.h>
+#include <stdbool.h>
+#include <linux/ipv6.h>
+#include <linux/if_ether.h>
+#include "test_tcp_hdr_options.h"
+#include "bpf_kfuncs.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Kind number used for experiments */
+const __u32 tcp_hdr_opt_kind_tpr = 0xFD;
+/* Length of the tcp header option */
+const __u32 tcp_hdr_opt_len_tpr = 6;
+/* maximum number of header options to check to lookup server_id */
+const __u32 tcp_hdr_opt_max_opt_checks = 15;
+
+__u32 server_id;
+
+static int parse_hdr_opt(struct bpf_dynptr *ptr, __u32 *off, __u8 *hdr_bytes_remaining,
+			 __u32 *server_id)
+{
+	__u8 kind, hdr_len;
+	__u8 buffer[sizeof(kind) + sizeof(hdr_len) + sizeof(*server_id)];
+	__u8 *data;
+
+	__builtin_memset(buffer, 0, sizeof(buffer));
+
+	data = bpf_dynptr_slice(ptr, *off, buffer, sizeof(buffer));
+	if (!data)
+		return -1;
+
+	kind = data[0];
+
+	if (kind == TCPOPT_EOL)
+		return -1;
+
+	if (kind == TCPOPT_NOP) {
+		*off += 1;
+		*hdr_bytes_remaining -= 1;
+		return 0;
+	}
+
+	if (*hdr_bytes_remaining < 2)
+		return -1;
+
+	hdr_len = data[1];
+	if (hdr_len > *hdr_bytes_remaining)
+		return -1;
+
+	if (kind == tcp_hdr_opt_kind_tpr) {
+		if (hdr_len != tcp_hdr_opt_len_tpr)
+			return -1;
+
+		__builtin_memcpy(server_id, (__u32 *)(data + 2), sizeof(*server_id));
+		return 1;
+	}
+
+	*off += hdr_len;
+	*hdr_bytes_remaining -= hdr_len;
+	return 0;
+}
+
+SEC("xdp")
+int xdp_ingress_v6(struct xdp_md *xdp)
+{
+	__u8 buffer[sizeof(struct tcphdr)] = {};
+	__u8 hdr_bytes_remaining;
+	struct tcphdr *tcp_hdr;
+	__u8 tcp_hdr_opt_len;
+	int err = 0;
+	__u32 off;
+
+	struct bpf_dynptr ptr;
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr);
+
+	off = sizeof(struct ethhdr) + sizeof(struct ipv6hdr);
+
+	tcp_hdr = bpf_dynptr_slice(&ptr, off, buffer, sizeof(buffer));
+	if (!tcp_hdr)
+		return XDP_DROP;
+
+	tcp_hdr_opt_len = (tcp_hdr->doff * 4) - sizeof(struct tcphdr);
+	if (tcp_hdr_opt_len < tcp_hdr_opt_len_tpr)
+		return XDP_DROP;
+
+	hdr_bytes_remaining = tcp_hdr_opt_len;
+
+	off += sizeof(struct tcphdr);
+
+	/* max number of bytes of options in tcp header is 40 bytes */
+	for (int i = 0; i < tcp_hdr_opt_max_opt_checks; i++) {
+		err = parse_hdr_opt(&ptr, &off, &hdr_bytes_remaining, &server_id);
+
+		if (err || !hdr_bytes_remaining)
+			break;
+	}
+
+	if (!server_id)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_pe_preserve_elems.c b/tools/testing/selftests/bpf/progs/test_pe_preserve_elems.c
new file mode 100644
index 000000000000..1249a945699f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pe_preserve_elems.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} array_1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__uint(map_flags, BPF_F_PRESERVE_ELEMS);
+} array_2 SEC(".maps");
+
+SEC("raw_tp/sched_switch")
+int BPF_PROG(read_array_1)
+{
+	struct bpf_perf_event_value val;
+
+	return bpf_perf_event_read_value(&array_1, 0, &val, sizeof(val));
+}
+
+SEC("raw_tp/task_rename")
+int BPF_PROG(read_array_2)
+{
+	struct bpf_perf_event_value val;
+
+	return bpf_perf_event_read_value(&array_2, 0, &val, sizeof(val));
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_perf_branches.c b/tools/testing/selftests/bpf/progs/test_perf_branches.c
new file mode 100644
index 000000000000..05ac9410cd68
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_perf_branches.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <stddef.h>
+#include <linux/ptrace.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int valid = 0;
+int run_cnt = 0;
+int required_size_out = 0;
+int written_stack_out = 0;
+int written_global_out = 0;
+
+struct {
+	__u64 _a;
+	__u64 _b;
+	__u64 _c;
+} fpbe[30] = {0};
+
+SEC("perf_event")
+int perf_branches(void *ctx)
+{
+	__u64 entries[4 * 3] = {0};
+	int required_size, written_stack, written_global;
+
+	++run_cnt;
+
+	/* write to stack */
+	written_stack = bpf_read_branch_records(ctx, entries, sizeof(entries), 0);
+	/* ignore spurious events */
+	if (!written_stack)
+		return 1;
+
+	/* get required size */
+	required_size = bpf_read_branch_records(ctx, NULL, 0,
+						BPF_F_GET_BRANCH_RECORDS_SIZE);
+
+	written_global = bpf_read_branch_records(ctx, fpbe, sizeof(fpbe), 0);
+	/* ignore spurious events */
+	if (!written_global)
+		return 1;
+
+	required_size_out = required_size;
+	written_stack_out = written_stack;
+	written_global_out = written_global;
+	valid = 1;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_perf_buffer.c b/tools/testing/selftests/bpf/progs/test_perf_buffer.c
new file mode 100644
index 000000000000..17d5b67744d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_perf_buffer.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/ptrace.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 1);
+} my_pid_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, int);
+	__type(value, int);
+} perf_buf_map SEC(".maps");
+
+SEC("tp/raw_syscalls/sys_enter")
+int handle_sys_enter(void *ctx)
+{
+	int zero = 0, *my_pid, cur_pid;
+	int cpu = bpf_get_smp_processor_id();
+
+	my_pid = bpf_map_lookup_elem(&my_pid_map, &zero);
+	if (!my_pid)
+		return 1;
+
+	cur_pid = bpf_get_current_pid_tgid() >> 32;
+	if (cur_pid != *my_pid)
+		return 1;
+
+	bpf_perf_event_output(ctx, &perf_buf_map, BPF_F_CURRENT_CPU,
+			      &cpu, sizeof(cpu));
+	return 1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_perf_link.c b/tools/testing/selftests/bpf/progs/test_perf_link.c
new file mode 100644
index 000000000000..c1db9fd98d0c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_perf_link.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int run_cnt = 0;
+
+SEC("perf_event")
+int handler(struct pt_regs *ctx)
+{
+	__sync_fetch_and_add(&run_cnt, 1);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_perf_skip.c b/tools/testing/selftests/bpf/progs/test_perf_skip.c
new file mode 100644
index 000000000000..7eb8b6de7a57
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_perf_skip.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+uintptr_t ip;
+
+SEC("perf_event")
+int handler(struct bpf_perf_event_data *data)
+{
+	/* Skip events that have the correct ip. */
+	return ip != PT_REGS_IP(&data->regs);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_pinning.c b/tools/testing/selftests/bpf/progs/test_pinning.c
new file mode 100644
index 000000000000..0facea6cbbae
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pinning.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(pinning, LIBBPF_PIN_BY_NAME);
+} pinmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} nopinmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(pinning, LIBBPF_PIN_NONE);
+} nopinmap2 SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_pinning_devmap.c b/tools/testing/selftests/bpf/progs/test_pinning_devmap.c
new file mode 100644
index 000000000000..c855f8f87eff
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pinning_devmap.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(pinning, LIBBPF_PIN_BY_NAME);
+} pinmap1 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(pinning, LIBBPF_PIN_BY_NAME);
+} pinmap2 SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/test_pinning_htab.c b/tools/testing/selftests/bpf/progs/test_pinning_htab.c
new file mode 100644
index 000000000000..ae227930c73c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pinning_htab.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct timer_val {
+	struct bpf_timer timer;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, struct timer_val);
+	__uint(max_entries, 1);
+} timer_prealloc SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, struct timer_val);
+	__uint(max_entries, 1);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} timer_no_prealloc SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/test_pinning_invalid.c b/tools/testing/selftests/bpf/progs/test_pinning_invalid.c
new file mode 100644
index 000000000000..2a56db1094b8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pinning_invalid.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(pinning, 2); /* invalid */
+} nopinmap3 SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_pkt_access.c b/tools/testing/selftests/bpf/progs/test_pkt_access.c
new file mode 100644
index 000000000000..bce7173152c6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pkt_access.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2017 Facebook
+ */
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/tcp.h>
+#include <linux/pkt_cls.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+
+/* llvm will optimize both subprograms into exactly the same BPF assembly
+ *
+ * Disassembly of section .text:
+ *
+ * 0000000000000000 test_pkt_access_subprog1:
+ * ; 	return skb->len * 2;
+ *        0:	61 10 00 00 00 00 00 00	r0 = *(u32 *)(r1 + 0)
+ *        1:	64 00 00 00 01 00 00 00	w0 <<= 1
+ *        2:	95 00 00 00 00 00 00 00	exit
+ *
+ * 0000000000000018 test_pkt_access_subprog2:
+ * ; 	return skb->len * val;
+ *        3:	61 10 00 00 00 00 00 00	r0 = *(u32 *)(r1 + 0)
+ *        4:	64 00 00 00 01 00 00 00	w0 <<= 1
+ *        5:	95 00 00 00 00 00 00 00	exit
+ *
+ * Which makes it an interesting test for BTF-enabled verifier.
+ */
+static __attribute__ ((noinline))
+int test_pkt_access_subprog1(volatile struct __sk_buff *skb)
+{
+	return skb->len * 2;
+}
+
+static __attribute__ ((noinline))
+int test_pkt_access_subprog2(int val, volatile struct __sk_buff *skb)
+{
+	return skb->len * val;
+}
+
+#define MAX_STACK (512 - 2 * 32)
+
+__attribute__ ((noinline))
+int get_skb_len(struct __sk_buff *skb)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return skb->len;
+}
+
+__attribute__ ((noinline))
+int get_constant(long val)
+{
+	return val - 122;
+}
+
+int get_skb_ifindex(int, struct __sk_buff *skb, int);
+
+__attribute__ ((noinline))
+int test_pkt_access_subprog3(int val, struct __sk_buff *skb)
+{
+	return get_skb_len(skb) * get_skb_ifindex(val, skb, get_constant(123));
+}
+
+__attribute__ ((noinline))
+int get_skb_ifindex(int val, struct __sk_buff *skb, int var)
+{
+	volatile char buf[MAX_STACK] = {};
+
+	__sink(buf[MAX_STACK - 1]);
+
+	return skb->ifindex * val * var;
+}
+
+__attribute__ ((noinline))
+int test_pkt_write_access_subprog(struct __sk_buff *skb, __u32 off)
+{
+	void *data = (void *)(long)skb->data;
+	void *data_end = (void *)(long)skb->data_end;
+	struct tcphdr *tcp = NULL;
+
+	if (off > sizeof(struct ethhdr) + sizeof(struct ipv6hdr))
+		return -1;
+
+	tcp = data + off;
+	if (tcp + 1 > data_end)
+		return -1;
+	/* make modification to the packet data */
+	tcp->check++;
+	return 0;
+}
+
+SEC("tc")
+int test_pkt_access(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ethhdr *eth = (struct ethhdr *)(data);
+	struct tcphdr *tcp = NULL;
+	__u8 proto = 255;
+	__u64 ihl_len;
+
+	if (eth + 1 > data_end)
+		return TC_ACT_SHOT;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)(eth + 1);
+
+		if (iph + 1 > data_end)
+			return TC_ACT_SHOT;
+		ihl_len = iph->ihl * 4;
+		proto = iph->protocol;
+		tcp = (struct tcphdr *)((void *)(iph) + ihl_len);
+	} else if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+		struct ipv6hdr *ip6h = (struct ipv6hdr *)(eth + 1);
+
+		if (ip6h + 1 > data_end)
+			return TC_ACT_SHOT;
+		ihl_len = sizeof(*ip6h);
+		proto = ip6h->nexthdr;
+		tcp = (struct tcphdr *)((void *)(ip6h) + ihl_len);
+	}
+
+	if (test_pkt_access_subprog1(skb) != skb->len * 2)
+		return TC_ACT_SHOT;
+	if (test_pkt_access_subprog2(2, skb) != skb->len * 2)
+		return TC_ACT_SHOT;
+	if (test_pkt_access_subprog3(3, skb) != skb->len * 3 * skb->ifindex)
+		return TC_ACT_SHOT;
+	if (tcp) {
+		if (test_pkt_write_access_subprog(skb, (void *)tcp - data))
+			return TC_ACT_SHOT;
+		if (((void *)(tcp) + 20) > data_end || proto != 6)
+			return TC_ACT_SHOT;
+		barrier(); /* to force ordering of checks */
+		if (((void *)(tcp) + 18) > data_end)
+			return TC_ACT_SHOT;
+		if (tcp->urg_ptr == 123)
+			return TC_ACT_OK;
+	}
+
+	return TC_ACT_UNSPEC;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_pkt_md_access.c b/tools/testing/selftests/bpf/progs/test_pkt_md_access.c
new file mode 100644
index 000000000000..d1839366f3e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_pkt_md_access.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2017 Facebook
+ */
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+#include <bpf/bpf_helpers.h>
+
+#if  __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define TEST_FIELD(TYPE, FIELD, MASK)					\
+	{								\
+		TYPE tmp = *(volatile TYPE *)&skb->FIELD;		\
+		if (tmp != ((*(volatile __u32 *)&skb->FIELD) & MASK))	\
+			return TC_ACT_SHOT;				\
+	}
+#else
+#define TEST_FIELD_OFFSET(a, b)	((sizeof(a) - sizeof(b)) / sizeof(b))
+#define TEST_FIELD(TYPE, FIELD, MASK)					\
+	{								\
+		TYPE tmp = *((volatile TYPE *)&skb->FIELD +		\
+			      TEST_FIELD_OFFSET(skb->FIELD, TYPE));	\
+		if (tmp != ((*(volatile __u32 *)&skb->FIELD) & MASK))	\
+			return TC_ACT_SHOT;				\
+	}
+#endif
+
+SEC("tc")
+int test_pkt_md_access(struct __sk_buff *skb)
+{
+	TEST_FIELD(__u8,  len, 0xFF);
+	TEST_FIELD(__u16, len, 0xFFFF);
+	TEST_FIELD(__u32, len, 0xFFFFFFFF);
+	TEST_FIELD(__u16, protocol, 0xFFFF);
+	TEST_FIELD(__u32, protocol, 0xFFFFFFFF);
+	TEST_FIELD(__u8,  hash, 0xFF);
+	TEST_FIELD(__u16, hash, 0xFFFF);
+	TEST_FIELD(__u32, hash, 0xFFFFFFFF);
+
+	return TC_ACT_OK;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_probe_read_user_str.c b/tools/testing/selftests/bpf/progs/test_probe_read_user_str.c
new file mode 100644
index 000000000000..3ae398b75dcd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_probe_read_user_str.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include <sys/types.h>
+
+pid_t pid = 0;
+long ret = 0;
+void *user_ptr = 0;
+char buf[256] = {};
+
+SEC("tracepoint/syscalls/sys_enter_nanosleep")
+int on_write(void *ctx)
+{
+	if (pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	ret = bpf_probe_read_user_str(buf, sizeof(buf), user_ptr);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_probe_user.c b/tools/testing/selftests/bpf/progs/test_probe_user.c
new file mode 100644
index 000000000000..a8e501af9604
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_probe_user.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+static struct sockaddr_in old;
+
+static int handle_sys_connect_common(struct sockaddr_in *uservaddr)
+{
+	struct sockaddr_in new;
+
+	bpf_probe_read_user(&old, sizeof(old), uservaddr);
+	__builtin_memset(&new, 0xab, sizeof(new));
+	bpf_probe_write_user(uservaddr, &new, sizeof(new));
+
+	return 0;
+}
+
+SEC("ksyscall/connect")
+int BPF_KSYSCALL(handle_sys_connect, int fd, struct sockaddr_in *uservaddr,
+		 int addrlen)
+{
+	return handle_sys_connect_common(uservaddr);
+}
+
+#if defined(bpf_target_s390)
+#ifndef SYS_CONNECT
+#define SYS_CONNECT 3
+#endif
+
+SEC("ksyscall/socketcall")
+int BPF_KSYSCALL(handle_sys_socketcall, int call, unsigned long *args)
+{
+	if (call == SYS_CONNECT) {
+		struct sockaddr_in *uservaddr;
+
+		bpf_probe_read_user(&uservaddr, sizeof(uservaddr), &args[1]);
+		return handle_sys_connect_common(uservaddr);
+	}
+
+	return 0;
+}
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_prog_array_init.c b/tools/testing/selftests/bpf/progs/test_prog_array_init.c
new file mode 100644
index 000000000000..2cd138356126
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_prog_array_init.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+const volatile pid_t my_pid = 0;
+int value = 0;
+
+SEC("raw_tp/sys_enter")
+int tailcall_1(void *ctx)
+{
+	value = 42;
+	return 0;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(__u32));
+	__array(values, int (void *));
+} prog_array_init SEC(".maps") = {
+	.values = {
+		[1] = (void *)&tailcall_1,
+	},
+};
+
+SEC("raw_tp/sys_enter")
+int entry(void *ctx)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	bpf_tail_call(ctx, &prog_array_init, 1);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c b/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c
new file mode 100644
index 000000000000..89b0cd5a3e06
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ptr_untrusted.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_tracing.h>
+
+char tp_name[128];
+
+SEC("lsm.s/bpf")
+int BPF_PROG(lsm_run, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	switch (cmd) {
+	case BPF_RAW_TRACEPOINT_OPEN:
+		bpf_copy_from_user(tp_name, sizeof(tp_name) - 1,
+				   (void *)attr->raw_tracepoint.name);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+SEC("raw_tracepoint")
+int BPF_PROG(raw_tp_run)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_queue_map.c b/tools/testing/selftests/bpf/progs/test_queue_map.c
new file mode 100644
index 000000000000..87db1f9da33d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_queue_map.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Politecnico di Torino
+#define MAP_TYPE BPF_MAP_TYPE_QUEUE
+#include "test_queue_stack_map.h"
diff --git a/tools/testing/selftests/bpf/progs/test_queue_stack_map.h b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h
new file mode 100644
index 000000000000..648e8cab7a23
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_queue_stack_map.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (c) 2018 Politecnico di Torino
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/pkt_cls.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, MAP_TYPE);
+	__uint(max_entries, 32);
+	__uint(map_flags, 0);
+	__uint(key_size, 0);
+	__uint(value_size, sizeof(__u32));
+} map_in SEC(".maps");
+
+struct {
+	__uint(type, MAP_TYPE);
+	__uint(max_entries, 32);
+	__uint(map_flags, 0);
+	__uint(key_size, 0);
+	__uint(value_size, sizeof(__u32));
+} map_out SEC(".maps");
+
+SEC("tc")
+int _test(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ethhdr *eth = (struct ethhdr *)(data);
+	__u32 value;
+	int err;
+
+	if (eth + 1 > data_end)
+		return TC_ACT_SHOT;
+
+	struct iphdr *iph = (struct iphdr *)(eth + 1);
+
+	if (iph + 1 > data_end)
+		return TC_ACT_SHOT;
+
+	err = bpf_map_pop_elem(&map_in, &value);
+	if (err)
+		return TC_ACT_SHOT;
+
+	iph->daddr = value;
+
+	err = bpf_map_push_elem(&map_out, &iph->saddr, 0);
+	if (err)
+		return TC_ACT_SHOT;
+
+	return TC_ACT_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_raw_tp_test_run.c b/tools/testing/selftests/bpf/progs/test_raw_tp_test_run.c
new file mode 100644
index 000000000000..4c63cc87b9d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_raw_tp_test_run.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+__u32 count = 0;
+__u32 on_cpu = 0xffffffff;
+
+SEC("raw_tp/task_rename")
+int BPF_PROG(rename, struct task_struct *task, char *comm)
+{
+
+	count++;
+	if ((__u64) task == 0x1234ULL && (__u64) comm == 0x5678ULL) {
+		on_cpu = bpf_get_smp_processor_id();
+		return (long)task + (long)comm;
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_rdonly_maps.c b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
new file mode 100644
index 000000000000..7035fb4d4165
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_rdonly_maps.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <linux/ptrace.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+const struct {
+	unsigned a[4];
+	/*
+	 * if the struct's size is multiple of 16, compiler will put it into
+	 * .rodata.cst16 section, which is not recognized by libbpf; work
+	 * around this by ensuring we don't have 16-aligned struct
+	 */
+	char _y;
+} rdonly_values = { .a = {2, 3, 4, 5} };
+
+struct {
+	unsigned did_run;
+	unsigned iters;
+	unsigned sum;
+} res = {};
+
+SEC("raw_tracepoint/sys_enter:skip_loop")
+int skip_loop(struct pt_regs *ctx)
+{
+	/* prevent compiler to optimize everything out */
+	unsigned * volatile p = (void *)&rdonly_values.a;
+	unsigned iters = 0, sum = 0;
+
+	/* we should never enter this loop */
+	while (*p & 1) {
+		iters++;
+		sum += *p;
+		p++;
+	}
+	res.did_run = 1;
+	res.iters = iters;
+	res.sum = sum;
+	return 0;
+}
+
+SEC("raw_tracepoint/sys_enter:part_loop")
+int part_loop(struct pt_regs *ctx)
+{
+	/* prevent compiler to optimize everything out */
+	unsigned * volatile p = (void *)&rdonly_values.a;
+	unsigned iters = 0, sum = 0;
+
+	/* validate verifier can derive loop termination */
+	while (*p < 5) {
+		iters++;
+		sum += *p;
+		p++;
+	}
+	res.did_run = 1;
+	res.iters = iters;
+	res.sum = sum;
+	return 0;
+}
+
+SEC("raw_tracepoint/sys_enter:full_loop")
+int full_loop(struct pt_regs *ctx)
+{
+	/* prevent compiler to optimize everything out */
+	unsigned * volatile p = (void *)&rdonly_values.a;
+	int i = ARRAY_SIZE(rdonly_values.a);
+	unsigned iters = 0, sum = 0;
+
+	/* validate verifier can allow full loop as well */
+	while (i > 0 ) {
+		iters++;
+		sum += *p;
+		p++;
+		i--;
+	}
+	res.did_run = 1;
+	res.iters = iters;
+	res.sum = sum;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf.c b/tools/testing/selftests/bpf/progs/test_ringbuf.c
new file mode 100644
index 000000000000..501cefa97633
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} ringbuf SEC(".maps");
+
+/* inputs */
+int pid = 0;
+long value = 0;
+long flags = 0;
+
+/* outputs */
+long total = 0;
+long discarded = 0;
+long dropped = 0;
+
+long avail_data = 0;
+long ring_size = 0;
+long cons_pos = 0;
+long prod_pos = 0;
+
+/* inner state */
+long seq = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_ringbuf(void *ctx)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+	struct sample *sample;
+
+	if (cur_pid != pid)
+		return 0;
+
+	sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0);
+	if (!sample) {
+		__sync_fetch_and_add(&dropped, 1);
+		return 0;
+	}
+
+	sample->pid = pid;
+	bpf_get_current_comm(sample->comm, sizeof(sample->comm));
+	sample->value = value;
+
+	sample->seq = seq++;
+	__sync_fetch_and_add(&total, 1);
+
+	if (sample->seq & 1) {
+		/* copy from reserved sample to a new one... */
+		bpf_ringbuf_output(&ringbuf, sample, sizeof(*sample), flags);
+		/* ...and then discard reserved sample */
+		bpf_ringbuf_discard(sample, flags);
+		__sync_fetch_and_add(&discarded, 1);
+	} else {
+		bpf_ringbuf_submit(sample, flags);
+	}
+
+	avail_data = bpf_ringbuf_query(&ringbuf, BPF_RB_AVAIL_DATA);
+	ring_size = bpf_ringbuf_query(&ringbuf, BPF_RB_RING_SIZE);
+	cons_pos = bpf_ringbuf_query(&ringbuf, BPF_RB_CONS_POS);
+	prod_pos = bpf_ringbuf_query(&ringbuf, BPF_RB_PROD_POS);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_map_key.c b/tools/testing/selftests/bpf/progs/test_ringbuf_map_key.c
new file mode 100644
index 000000000000..21bb7da90ea5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf_map_key.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1000);
+	__type(key, struct sample);
+	__type(value, int);
+} hash_map SEC(".maps");
+
+/* inputs */
+int pid = 0;
+
+/* inner state */
+long seq = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_ringbuf_mem_map_key(void *ctx)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+	struct sample *sample, sample_copy;
+	int *lookup_val;
+
+	if (cur_pid != pid)
+		return 0;
+
+	sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0);
+	if (!sample)
+		return 0;
+
+	sample->pid = pid;
+	bpf_get_current_comm(sample->comm, sizeof(sample->comm));
+	sample->seq = ++seq;
+	sample->value = 42;
+
+	/* test using 'sample' (PTR_TO_MEM | MEM_ALLOC) as map key arg
+	 */
+	lookup_val = (int *)bpf_map_lookup_elem(&hash_map, sample);
+	__sink(lookup_val);
+
+	/* workaround - memcpy is necessary so that verifier doesn't
+	 * complain with:
+	 *   verifier internal error: more than one arg with ref_obj_id R3
+	 * when trying to do bpf_map_update_elem(&hash_map, sample, &sample->seq, BPF_ANY);
+	 *
+	 * Since bpf_map_lookup_elem above uses 'sample' as key, test using
+	 * sample field as value below
+	 */
+	__builtin_memcpy(&sample_copy, sample, sizeof(struct sample));
+	bpf_map_update_elem(&hash_map, &sample_copy, &sample->seq, BPF_ANY);
+
+	bpf_ringbuf_submit(sample, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c b/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c
new file mode 100644
index 000000000000..9626baa6779c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf_multi.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+struct ringbuf_map {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	/* libbpf will adjust to valid page size */
+	__uint(max_entries, 1000);
+} ringbuf1 SEC(".maps"),
+  ringbuf2 SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 4);
+	__type(key, int);
+	__array(values, struct ringbuf_map);
+} ringbuf_arr SEC(".maps") = {
+	.values = {
+		[0] = &ringbuf1,
+		[2] = &ringbuf2,
+	},
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__array(values, struct ringbuf_map);
+} ringbuf_hash SEC(".maps") = {
+	.values = {
+		[0] = &ringbuf1,
+	},
+};
+
+/* inputs */
+int pid = 0;
+int target_ring = 0;
+long value = 0;
+
+/* outputs */
+long total = 0;
+long dropped = 0;
+long skipped = 0;
+
+SEC("tp/syscalls/sys_enter_getpgid")
+int test_ringbuf(void *ctx)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+	struct sample *sample;
+	void *rb;
+
+	if (cur_pid != pid)
+		return 0;
+
+	rb = bpf_map_lookup_elem(&ringbuf_arr, &target_ring);
+	if (!rb) {
+		skipped += 1;
+		return 1;
+	}
+
+	sample = bpf_ringbuf_reserve(rb, sizeof(*sample), 0);
+	if (!sample) {
+		dropped += 1;
+		return 1;
+	}
+
+	sample->pid = pid;
+	bpf_get_current_comm(sample->comm, sizeof(sample->comm));
+	sample->value = value;
+
+	sample->seq = total;
+	total += 1;
+
+	bpf_ringbuf_submit(sample, 0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_n.c b/tools/testing/selftests/bpf/progs/test_ringbuf_n.c
new file mode 100644
index 000000000000..8669eb42dbe0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf_n.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2024 Andrea Righi <andrea.righi@canonical.com>
+
+#include <linux/bpf.h>
+#include <sched.h>
+#include <unistd.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define TASK_COMM_LEN 16
+
+struct sample {
+	int pid;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} ringbuf SEC(".maps");
+
+int pid = 0;
+long value = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_ringbuf_n(void *ctx)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+	struct sample *sample;
+
+	if (cur_pid != pid)
+		return 0;
+
+	sample = bpf_ringbuf_reserve(&ringbuf, sizeof(*sample), 0);
+	if (!sample)
+		return 0;
+
+	sample->pid = pid;
+	sample->value = value;
+	bpf_get_current_comm(sample->comm, sizeof(sample->comm));
+
+	bpf_ringbuf_submit(sample, 0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_overwrite.c b/tools/testing/selftests/bpf/progs/test_ringbuf_overwrite.c
new file mode 100644
index 000000000000..ff4aa67ddacc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf_overwrite.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2025. Huawei Technologies Co., Ltd */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(map_flags, BPF_F_RB_OVERWRITE);
+} ringbuf SEC(".maps");
+
+int pid;
+
+const volatile unsigned long LEN1;
+const volatile unsigned long LEN2;
+const volatile unsigned long LEN3;
+const volatile unsigned long LEN4;
+const volatile unsigned long LEN5;
+
+long reserve1_fail = 0;
+long reserve2_fail = 0;
+long reserve3_fail = 0;
+long reserve4_fail = 0;
+long reserve5_fail = 0;
+
+unsigned long avail_data = 0;
+unsigned long ring_size = 0;
+unsigned long cons_pos = 0;
+unsigned long prod_pos = 0;
+unsigned long over_pos = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_overwrite_ringbuf(void *ctx)
+{
+	char *rec1, *rec2, *rec3, *rec4, *rec5;
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (cur_pid != pid)
+		return 0;
+
+	rec1 = bpf_ringbuf_reserve(&ringbuf, LEN1, 0);
+	if (!rec1) {
+		reserve1_fail = 1;
+		return 0;
+	}
+
+	rec2 = bpf_ringbuf_reserve(&ringbuf, LEN2, 0);
+	if (!rec2) {
+		bpf_ringbuf_discard(rec1, 0);
+		reserve2_fail = 1;
+		return 0;
+	}
+
+	rec3 = bpf_ringbuf_reserve(&ringbuf, LEN3, 0);
+	/* expect failure */
+	if (!rec3) {
+		reserve3_fail = 1;
+	} else {
+		bpf_ringbuf_discard(rec1, 0);
+		bpf_ringbuf_discard(rec2, 0);
+		bpf_ringbuf_discard(rec3, 0);
+		return 0;
+	}
+
+	rec4 = bpf_ringbuf_reserve(&ringbuf, LEN4, 0);
+	if (!rec4) {
+		reserve4_fail = 1;
+		bpf_ringbuf_discard(rec1, 0);
+		bpf_ringbuf_discard(rec2, 0);
+		return 0;
+	}
+
+	bpf_ringbuf_submit(rec1, 0);
+	bpf_ringbuf_submit(rec2, 0);
+	bpf_ringbuf_submit(rec4, 0);
+
+	rec5 = bpf_ringbuf_reserve(&ringbuf, LEN5, 0);
+	if (!rec5) {
+		reserve5_fail = 1;
+		return 0;
+	}
+
+	for (int i = 0; i < LEN3; i++)
+		rec5[i] = 0xdd;
+
+	bpf_ringbuf_submit(rec5, 0);
+
+	ring_size = bpf_ringbuf_query(&ringbuf, BPF_RB_RING_SIZE);
+	avail_data = bpf_ringbuf_query(&ringbuf, BPF_RB_AVAIL_DATA);
+	cons_pos = bpf_ringbuf_query(&ringbuf, BPF_RB_CONS_POS);
+	prod_pos = bpf_ringbuf_query(&ringbuf, BPF_RB_PROD_POS);
+	over_pos = bpf_ringbuf_query(&ringbuf, BPF_RB_OVERWRITE_POS);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_ringbuf_write.c b/tools/testing/selftests/bpf/progs/test_ringbuf_write.c
new file mode 100644
index 000000000000..f063a0013f85
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_ringbuf_write.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} ringbuf SEC(".maps");
+
+/* inputs */
+int pid = 0;
+
+/* outputs */
+long passed = 0;
+long discarded = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_ringbuf_write(void *ctx)
+{
+	int *foo, cur_pid = bpf_get_current_pid_tgid() >> 32;
+	void *sample1, *sample2;
+
+	if (cur_pid != pid)
+		return 0;
+
+	sample1 = bpf_ringbuf_reserve(&ringbuf, 0x30000, 0);
+	if (!sample1)
+		return 0;
+	/* first one can pass */
+	sample2 = bpf_ringbuf_reserve(&ringbuf, 0x30000, 0);
+	if (!sample2) {
+		bpf_ringbuf_discard(sample1, 0);
+		__sync_fetch_and_add(&discarded, 1);
+		return 0;
+	}
+	/* second one must not */
+	__sync_fetch_and_add(&passed, 1);
+	foo = sample2 + 4084;
+	*foo = 256;
+	bpf_ringbuf_discard(sample1, 0);
+	bpf_ringbuf_discard(sample2, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_seg6_loop.c b/tools/testing/selftests/bpf/progs/test_seg6_loop.c
new file mode 100644
index 000000000000..5059050f74f6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_seg6_loop.c
@@ -0,0 +1,262 @@
+#include <stddef.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <linux/seg6_local.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bpf_compiler.h"
+
+/* Packet parsing state machine helpers. */
+#define cursor_advance(_cursor, _len) \
+	({ void *_tmp = _cursor; _cursor += _len; _tmp; })
+
+#define SR6_FLAG_ALERT (1 << 4)
+
+#define BPF_PACKET_HEADER __attribute__((packed))
+
+struct ip6_t {
+	unsigned int ver:4;
+	unsigned int priority:8;
+	unsigned int flow_label:20;
+	unsigned short payload_len;
+	unsigned char next_header;
+	unsigned char hop_limit;
+	unsigned long long src_hi;
+	unsigned long long src_lo;
+	unsigned long long dst_hi;
+	unsigned long long dst_lo;
+} BPF_PACKET_HEADER;
+
+struct ip6_addr_t {
+	unsigned long long hi;
+	unsigned long long lo;
+} BPF_PACKET_HEADER;
+
+struct ip6_srh_t {
+	unsigned char nexthdr;
+	unsigned char hdrlen;
+	unsigned char type;
+	unsigned char segments_left;
+	unsigned char first_segment;
+	unsigned char flags;
+	unsigned short tag;
+
+	struct ip6_addr_t segments[0];
+} BPF_PACKET_HEADER;
+
+struct sr6_tlv_t {
+	unsigned char type;
+	unsigned char len;
+	unsigned char value[0];
+} BPF_PACKET_HEADER;
+
+static __always_inline struct ip6_srh_t *get_srh(struct __sk_buff *skb)
+{
+	void *cursor, *data_end;
+	struct ip6_srh_t *srh;
+	struct ip6_t *ip;
+	uint8_t *ipver;
+
+	data_end = (void *)(long)skb->data_end;
+	cursor = (void *)(long)skb->data;
+	ipver = (uint8_t *)cursor;
+
+	if ((void *)ipver + sizeof(*ipver) > data_end)
+		return NULL;
+
+	if ((*ipver >> 4) != 6)
+		return NULL;
+
+	ip = cursor_advance(cursor, sizeof(*ip));
+	if ((void *)ip + sizeof(*ip) > data_end)
+		return NULL;
+
+	if (ip->next_header != 43)
+		return NULL;
+
+	srh = cursor_advance(cursor, sizeof(*srh));
+	if ((void *)srh + sizeof(*srh) > data_end)
+		return NULL;
+
+	if (srh->type != 4)
+		return NULL;
+
+	return srh;
+}
+
+static __always_inline int update_tlv_pad(struct __sk_buff *skb,
+					  uint32_t new_pad, uint32_t old_pad,
+					  uint32_t pad_off)
+{
+	int err;
+
+	if (new_pad != old_pad) {
+		err = bpf_lwt_seg6_adjust_srh(skb, pad_off,
+					  (int) new_pad - (int) old_pad);
+		if (err)
+			return err;
+	}
+
+	if (new_pad > 0) {
+		char pad_tlv_buf[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+					0, 0, 0};
+		struct sr6_tlv_t *pad_tlv = (struct sr6_tlv_t *) pad_tlv_buf;
+
+		pad_tlv->type = SR6_TLV_PADDING;
+		pad_tlv->len = new_pad - 2;
+
+		err = bpf_lwt_seg6_store_bytes(skb, pad_off,
+					       (void *)pad_tlv_buf, new_pad);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+static __always_inline int is_valid_tlv_boundary(struct __sk_buff *skb,
+						 struct ip6_srh_t *srh,
+						 uint32_t *tlv_off,
+						 uint32_t *pad_size,
+						 uint32_t *pad_off)
+{
+	uint32_t srh_off, cur_off;
+	int offset_valid = 0;
+	int err;
+
+	srh_off = (char *)srh - (char *)(long)skb->data;
+	// cur_off = end of segments, start of possible TLVs
+	cur_off = srh_off + sizeof(*srh) +
+		sizeof(struct ip6_addr_t) * (srh->first_segment + 1);
+
+	*pad_off = 0;
+
+	// we can only go as far as ~10 TLVs due to the BPF max stack size
+	// workaround: define induction variable "i" as "long" instead
+	// of "int" to prevent alu32 sub-register spilling.
+	__pragma_loop_no_unroll
+	for (long i = 0; i < 100; i++) {
+		struct sr6_tlv_t tlv;
+
+		if (cur_off == *tlv_off)
+			offset_valid = 1;
+
+		if (cur_off >= srh_off + ((srh->hdrlen + 1) << 3))
+			break;
+
+		err = bpf_skb_load_bytes(skb, cur_off, &tlv, sizeof(tlv));
+		if (err)
+			return err;
+
+		if (tlv.type == SR6_TLV_PADDING) {
+			*pad_size = tlv.len + sizeof(tlv);
+			*pad_off = cur_off;
+
+			if (*tlv_off == srh_off) {
+				*tlv_off = cur_off;
+				offset_valid = 1;
+			}
+			break;
+
+		} else if (tlv.type == SR6_TLV_HMAC) {
+			break;
+		}
+
+		cur_off += sizeof(tlv) + tlv.len;
+	} // we reached the padding or HMAC TLVs, or the end of the SRH
+
+	if (*pad_off == 0)
+		*pad_off = cur_off;
+
+	if (*tlv_off == -1)
+		*tlv_off = cur_off;
+	else if (!offset_valid)
+		return -EINVAL;
+
+	return 0;
+}
+
+static __always_inline int add_tlv(struct __sk_buff *skb,
+				   struct ip6_srh_t *srh, uint32_t tlv_off,
+				   struct sr6_tlv_t *itlv, uint8_t tlv_size)
+{
+	uint32_t srh_off = (char *)srh - (char *)(long)skb->data;
+	uint8_t len_remaining, new_pad;
+	uint32_t pad_off = 0;
+	uint32_t pad_size = 0;
+	uint32_t partial_srh_len;
+	int err;
+
+	if (tlv_off != -1)
+		tlv_off += srh_off;
+
+	if (itlv->type == SR6_TLV_PADDING || itlv->type == SR6_TLV_HMAC)
+		return -EINVAL;
+
+	err = is_valid_tlv_boundary(skb, srh, &tlv_off, &pad_size, &pad_off);
+	if (err)
+		return err;
+
+	err = bpf_lwt_seg6_adjust_srh(skb, tlv_off, sizeof(*itlv) + itlv->len);
+	if (err)
+		return err;
+
+	err = bpf_lwt_seg6_store_bytes(skb, tlv_off, (void *)itlv, tlv_size);
+	if (err)
+		return err;
+
+	// the following can't be moved inside update_tlv_pad because the
+	// bpf verifier has some issues with it
+	pad_off += sizeof(*itlv) + itlv->len;
+	partial_srh_len = pad_off - srh_off;
+	len_remaining = partial_srh_len % 8;
+	new_pad = 8 - len_remaining;
+
+	if (new_pad == 1) // cannot pad for 1 byte only
+		new_pad = 9;
+	else if (new_pad == 8)
+		new_pad = 0;
+
+	return update_tlv_pad(skb, new_pad, pad_size, pad_off);
+}
+
+// Add an Egress TLV fc00::4, add the flag A,
+// and apply End.X action to fc42::1
+SEC("lwt_seg6local")
+int __add_egr_x(struct __sk_buff *skb)
+{
+	unsigned long long hi = 0xfc42000000000000;
+	unsigned long long lo = 0x1;
+	struct ip6_srh_t *srh = get_srh(skb);
+	uint8_t new_flags = SR6_FLAG_ALERT;
+	struct ip6_addr_t addr;
+	int err, offset;
+
+	if (srh == NULL)
+		return BPF_DROP;
+
+	uint8_t tlv[20] = {2, 18, 0, 0, 0xfd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
+			   0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4};
+
+	err = add_tlv(skb, srh, (srh->hdrlen+1) << 3,
+		      (struct sr6_tlv_t *)&tlv, 20);
+	if (err)
+		return BPF_DROP;
+
+	offset = sizeof(struct ip6_t) + offsetof(struct ip6_srh_t, flags);
+	err = bpf_lwt_seg6_store_bytes(skb, offset,
+				       (void *)&new_flags, sizeof(new_flags));
+	if (err)
+		return BPF_DROP;
+
+	addr.lo = bpf_cpu_to_be64(lo);
+	addr.hi = bpf_cpu_to_be64(hi);
+	err = bpf_lwt_seg6_action(skb, SEG6_LOCAL_ACTION_END_X,
+				  (void *)&addr, sizeof(addr));
+	if (err)
+		return BPF_DROP;
+	return BPF_REDIRECT;
+}
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c b/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c
new file mode 100644
index 000000000000..a5be3267dbb0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_select_reuseport_kern.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Facebook */
+
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/bpf.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include "test_select_reuseport_common.h"
+
+#ifndef offsetof
+#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} outer_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, NR_RESULTS);
+	__type(key, __u32);
+	__type(value, __u32);
+} result_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, int);
+} tmp_index_ovr_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} linum_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct data_check);
+} data_check_map SEC(".maps");
+
+#define GOTO_DONE(_result) ({			\
+	result = (_result);			\
+	linum = __LINE__;			\
+	goto done;				\
+})
+
+SEC("sk_reuseport")
+int _select_by_skb_data(struct sk_reuseport_md *reuse_md)
+{
+	__u32 linum, index = 0, flags = 0, index_zero = 0;
+	__u32 *result_cnt;
+	struct data_check data_check = {};
+	struct cmd *cmd, cmd_copy;
+	void *data, *data_end;
+	void *reuseport_array;
+	enum result result;
+	int *index_ovr;
+	int err;
+
+	data = reuse_md->data;
+	data_end = reuse_md->data_end;
+	data_check.len = reuse_md->len;
+	data_check.eth_protocol = reuse_md->eth_protocol;
+	data_check.ip_protocol = reuse_md->ip_protocol;
+	data_check.hash = reuse_md->hash;
+	data_check.bind_inany = reuse_md->bind_inany;
+	if (data_check.eth_protocol == bpf_htons(ETH_P_IP)) {
+		if (bpf_skb_load_bytes_relative(reuse_md,
+						offsetof(struct iphdr, saddr),
+						data_check.skb_addrs, 8,
+						BPF_HDR_START_NET))
+			GOTO_DONE(DROP_MISC);
+	} else {
+		if (bpf_skb_load_bytes_relative(reuse_md,
+						offsetof(struct ipv6hdr, saddr),
+						data_check.skb_addrs, 32,
+						BPF_HDR_START_NET))
+			GOTO_DONE(DROP_MISC);
+	}
+
+	/*
+	 * The ip_protocol could be a compile time decision
+	 * if the bpf_prog.o is dedicated to either TCP or
+	 * UDP.
+	 *
+	 * Otherwise, reuse_md->ip_protocol or
+	 * the protocol field in the iphdr can be used.
+	 */
+	if (data_check.ip_protocol == IPPROTO_TCP) {
+		struct tcphdr *th = data;
+
+		if (th + 1 > data_end)
+			GOTO_DONE(DROP_MISC);
+
+		data_check.skb_ports[0] = th->source;
+		data_check.skb_ports[1] = th->dest;
+
+		if (th->fin)
+			/* The connection is being torn down at the end of a
+			 * test. It can't contain a cmd, so return early.
+			 */
+			return SK_PASS;
+
+		if ((th->doff << 2) + sizeof(*cmd) > data_check.len)
+			GOTO_DONE(DROP_ERR_SKB_DATA);
+		if (bpf_skb_load_bytes(reuse_md, th->doff << 2, &cmd_copy,
+				       sizeof(cmd_copy)))
+			GOTO_DONE(DROP_MISC);
+		cmd = &cmd_copy;
+	} else if (data_check.ip_protocol == IPPROTO_UDP) {
+		struct udphdr *uh = data;
+
+		if (uh + 1 > data_end)
+			GOTO_DONE(DROP_MISC);
+
+		data_check.skb_ports[0] = uh->source;
+		data_check.skb_ports[1] = uh->dest;
+
+		if (sizeof(struct udphdr) + sizeof(*cmd) > data_check.len)
+			GOTO_DONE(DROP_ERR_SKB_DATA);
+		if (data + sizeof(struct udphdr) + sizeof(*cmd) > data_end) {
+			if (bpf_skb_load_bytes(reuse_md, sizeof(struct udphdr),
+					       &cmd_copy, sizeof(cmd_copy)))
+				GOTO_DONE(DROP_MISC);
+			cmd = &cmd_copy;
+		} else {
+			cmd = data + sizeof(struct udphdr);
+		}
+	} else {
+		GOTO_DONE(DROP_MISC);
+	}
+
+	reuseport_array = bpf_map_lookup_elem(&outer_map, &index_zero);
+	if (!reuseport_array)
+		GOTO_DONE(DROP_ERR_INNER_MAP);
+
+	index = cmd->reuseport_index;
+	index_ovr = bpf_map_lookup_elem(&tmp_index_ovr_map, &index_zero);
+	if (!index_ovr)
+		GOTO_DONE(DROP_MISC);
+
+	if (*index_ovr != -1) {
+		index = *index_ovr;
+		*index_ovr = -1;
+	}
+	err = bpf_sk_select_reuseport(reuse_md, reuseport_array, &index,
+				      flags);
+	if (!err)
+		GOTO_DONE(PASS);
+
+	if (cmd->pass_on_failure)
+		GOTO_DONE(PASS_ERR_SK_SELECT_REUSEPORT);
+	else
+		GOTO_DONE(DROP_ERR_SK_SELECT_REUSEPORT);
+
+done:
+	result_cnt = bpf_map_lookup_elem(&result_map, &result);
+	if (!result_cnt)
+		return SK_DROP;
+
+	bpf_map_update_elem(&linum_map, &index_zero, &linum, BPF_ANY);
+	bpf_map_update_elem(&data_check_map, &index_zero, &data_check, BPF_ANY);
+
+	(*result_cnt)++;
+	return result < PASS ? SK_DROP : SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_send_signal_kern.c b/tools/testing/selftests/bpf/progs/test_send_signal_kern.c
new file mode 100644
index 000000000000..176a355e3062
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_send_signal_kern.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <vmlinux.h>
+#include <linux/version.h>
+#include <bpf/bpf_helpers.h>
+
+struct task_struct *bpf_task_from_pid(int pid) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+int bpf_send_signal_task(struct task_struct *task, int sig, enum pid_type type, u64 value) __ksym;
+
+__u32 sig = 0, pid = 0, status = 0, signal_thread = 0, target_pid = 0;
+
+static __always_inline int bpf_send_signal_test(void *ctx)
+{
+	struct task_struct *target_task = NULL;
+	int ret;
+	u64 value;
+
+	if (status != 0 || pid == 0)
+		return 0;
+
+	if ((bpf_get_current_pid_tgid() >> 32) == pid) {
+		if (target_pid) {
+			target_task = bpf_task_from_pid(target_pid);
+			if (!target_task)
+				return 0;
+			value = 8;
+		}
+
+		if (signal_thread) {
+			if (target_pid)
+				ret = bpf_send_signal_task(target_task, sig, PIDTYPE_PID, value);
+			else
+				ret = bpf_send_signal_thread(sig);
+		} else {
+			if (target_pid)
+				ret = bpf_send_signal_task(target_task, sig, PIDTYPE_TGID, value);
+			else
+				ret = bpf_send_signal(sig);
+		}
+		if (ret == 0)
+			status = 1;
+	}
+
+	if (target_task)
+		bpf_task_release(target_task);
+
+	return 0;
+}
+
+SEC("tracepoint/syscalls/sys_enter_nanosleep")
+int send_signal_tp(void *ctx)
+{
+	return bpf_send_signal_test(ctx);
+}
+
+SEC("tracepoint/sched/sched_switch")
+int send_signal_tp_sched(void *ctx)
+{
+	return bpf_send_signal_test(ctx);
+}
+
+SEC("perf_event")
+int send_signal_perf(void *ctx)
+{
+	return bpf_send_signal_test(ctx);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_set_remove_xattr.c b/tools/testing/selftests/bpf/progs/test_set_remove_xattr.c
new file mode 100644
index 000000000000..6a612cf168d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_set_remove_xattr.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u32 monitored_pid;
+
+const char xattr_foo[] = "security.bpf.foo";
+const char xattr_bar[] = "security.bpf.bar";
+static const char xattr_selinux[] = "security.selinux";
+char value_bar[] = "world";
+char read_value[32];
+
+bool set_security_bpf_bar_success;
+bool remove_security_bpf_bar_success;
+bool set_security_selinux_fail;
+bool remove_security_selinux_fail;
+
+char name_buf[32];
+
+static inline bool name_match_foo(const char *name)
+{
+	bpf_probe_read_kernel(name_buf, sizeof(name_buf), name);
+
+	return !bpf_strncmp(name_buf, sizeof(xattr_foo), xattr_foo);
+}
+
+/* Test bpf_set_dentry_xattr and bpf_remove_dentry_xattr */
+SEC("lsm.s/inode_getxattr")
+int BPF_PROG(test_inode_getxattr, struct dentry *dentry, char *name)
+{
+	struct bpf_dynptr value_ptr;
+	__u32 pid;
+	int ret;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	/* Only do the following for security.bpf.foo */
+	if (!name_match_foo(name))
+		return 0;
+
+	bpf_dynptr_from_mem(read_value, sizeof(read_value), 0, &value_ptr);
+
+	/* read security.bpf.bar */
+	ret = bpf_get_dentry_xattr(dentry, xattr_bar, &value_ptr);
+
+	if (ret < 0) {
+		/* If security.bpf.bar doesn't exist, set it */
+		bpf_dynptr_from_mem(value_bar, sizeof(value_bar), 0, &value_ptr);
+
+		ret = bpf_set_dentry_xattr(dentry, xattr_bar, &value_ptr, 0);
+		if (!ret)
+			set_security_bpf_bar_success = true;
+		ret = bpf_set_dentry_xattr(dentry, xattr_selinux, &value_ptr, 0);
+		if (ret)
+			set_security_selinux_fail = true;
+	} else {
+		/* If security.bpf.bar exists, remove it */
+		ret = bpf_remove_dentry_xattr(dentry, xattr_bar);
+		if (!ret)
+			remove_security_bpf_bar_success = true;
+
+		ret = bpf_remove_dentry_xattr(dentry, xattr_selinux);
+		if (ret)
+			remove_security_selinux_fail = true;
+	}
+
+	return 0;
+}
+
+bool locked_set_security_bpf_bar_success;
+bool locked_remove_security_bpf_bar_success;
+bool locked_set_security_selinux_fail;
+bool locked_remove_security_selinux_fail;
+
+/* Test bpf_set_dentry_xattr_locked and bpf_remove_dentry_xattr_locked.
+ * It not necessary to differentiate the _locked version and the
+ * not-_locked version in the BPF program. The verifier will fix them up
+ * properly.
+ */
+SEC("lsm.s/inode_setxattr")
+int BPF_PROG(test_inode_setxattr, struct mnt_idmap *idmap,
+	     struct dentry *dentry, const char *name,
+	     const void *value, size_t size, int flags)
+{
+	struct bpf_dynptr value_ptr;
+	__u32 pid;
+	int ret;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	/* Only do the following for security.bpf.foo */
+	if (!name_match_foo(name))
+		return 0;
+
+	bpf_dynptr_from_mem(read_value, sizeof(read_value), 0, &value_ptr);
+
+	/* read security.bpf.bar */
+	ret = bpf_get_dentry_xattr(dentry, xattr_bar, &value_ptr);
+
+	if (ret < 0) {
+		/* If security.bpf.bar doesn't exist, set it */
+		bpf_dynptr_from_mem(value_bar, sizeof(value_bar), 0, &value_ptr);
+
+		ret = bpf_set_dentry_xattr(dentry, xattr_bar, &value_ptr, 0);
+		if (!ret)
+			locked_set_security_bpf_bar_success = true;
+		ret = bpf_set_dentry_xattr(dentry, xattr_selinux, &value_ptr, 0);
+		if (ret)
+			locked_set_security_selinux_fail = true;
+	} else {
+		/* If security.bpf.bar exists, remove it */
+		ret = bpf_remove_dentry_xattr(dentry, xattr_bar);
+		if (!ret)
+			locked_remove_security_bpf_bar_success = true;
+
+		ret = bpf_remove_dentry_xattr(dentry, xattr_selinux);
+		if (ret)
+			locked_remove_security_selinux_fail = true;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_sig_in_xattr.c b/tools/testing/selftests/bpf/progs/test_sig_in_xattr.c
new file mode 100644
index 000000000000..34b30e2603f0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sig_in_xattr.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_kfuncs.h"
+#include "err.h"
+
+char _license[] SEC("license") = "GPL";
+
+#ifndef SHA256_DIGEST_SIZE
+#define SHA256_DIGEST_SIZE      32
+#endif
+
+#define MAX_SIG_SIZE 1024
+
+/* By default, "fsverity sign" signs a file with fsverity_formatted_digest
+ * of the file. fsverity_formatted_digest on the kernel side is only used
+ * with CONFIG_FS_VERITY_BUILTIN_SIGNATURES. However, BPF LSM doesn't not
+ * require CONFIG_FS_VERITY_BUILTIN_SIGNATURES, so vmlinux.h may not have
+ * fsverity_formatted_digest. In this test, we intentionally avoid using
+ * fsverity_formatted_digest.
+ *
+ * Luckily, fsverity_formatted_digest is simply 8-byte magic followed by
+ * fsverity_digest. We use a char array of size fsverity_formatted_digest
+ * plus SHA256_DIGEST_SIZE. The magic part of it is filled by user space,
+ * and the rest of it is filled by bpf_get_fsverity_digest.
+ *
+ * Note that, generating signatures based on fsverity_formatted_digest is
+ * the design choice of this selftest (and "fsverity sign"). With BPF
+ * LSM, we have the flexibility to generate signature based on other data
+ * sets, for example, fsverity_digest or only the digest[] part of it.
+ */
+#define MAGIC_SIZE 8
+#define SIZEOF_STRUCT_FSVERITY_DIGEST 4  /* sizeof(struct fsverity_digest) */
+char digest[MAGIC_SIZE + SIZEOF_STRUCT_FSVERITY_DIGEST + SHA256_DIGEST_SIZE];
+
+__u32 monitored_pid;
+char sig[MAX_SIG_SIZE];
+__u32 sig_size;
+__s32 user_keyring_serial;
+
+SEC("lsm.s/file_open")
+int BPF_PROG(test_file_open, struct file *f)
+{
+	struct bpf_dynptr digest_ptr, sig_ptr;
+	struct bpf_key *trusted_keyring;
+	__u32 pid;
+	int ret;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	/* digest_ptr points to fsverity_digest */
+	bpf_dynptr_from_mem(digest + MAGIC_SIZE, sizeof(digest) - MAGIC_SIZE, 0, &digest_ptr);
+
+	ret = bpf_get_fsverity_digest(f, &digest_ptr);
+	/* No verity, allow access */
+	if (ret < 0)
+		return 0;
+
+	/* Move digest_ptr to fsverity_formatted_digest */
+	bpf_dynptr_from_mem(digest, sizeof(digest), 0, &digest_ptr);
+
+	/* Read signature from xattr */
+	bpf_dynptr_from_mem(sig, sizeof(sig), 0, &sig_ptr);
+	ret = bpf_get_file_xattr(f, "user.sig", &sig_ptr);
+	/* No signature, reject access */
+	if (ret < 0)
+		return -EPERM;
+
+	trusted_keyring = bpf_lookup_user_key(user_keyring_serial, 0);
+	if (!trusted_keyring)
+		return -ENOENT;
+
+	/* Verify signature */
+	ret = bpf_verify_pkcs7_signature(&digest_ptr, &sig_ptr, trusted_keyring);
+
+	bpf_key_put(trusted_keyring);
+
+	set_if_not_errno_or_zero(ret, -EFAULT);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_siphash.h b/tools/testing/selftests/bpf/progs/test_siphash.h
new file mode 100644
index 000000000000..5d3a7ec36780
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_siphash.h
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#ifndef _TEST_SIPHASH_H
+#define _TEST_SIPHASH_H
+
+/* include/linux/bitops.h */
+static inline u64 rol64(u64 word, unsigned int shift)
+{
+	return (word << (shift & 63)) | (word >> ((-shift) & 63));
+}
+
+/* include/linux/siphash.h */
+#define SIPHASH_PERMUTATION(a, b, c, d) ( \
+	(a) += (b), (b) = rol64((b), 13), (b) ^= (a), (a) = rol64((a), 32), \
+	(c) += (d), (d) = rol64((d), 16), (d) ^= (c), \
+	(a) += (d), (d) = rol64((d), 21), (d) ^= (a), \
+	(c) += (b), (b) = rol64((b), 17), (b) ^= (c), (c) = rol64((c), 32))
+
+#define SIPHASH_CONST_0 0x736f6d6570736575ULL
+#define SIPHASH_CONST_1 0x646f72616e646f6dULL
+#define SIPHASH_CONST_2 0x6c7967656e657261ULL
+#define SIPHASH_CONST_3 0x7465646279746573ULL
+
+/* lib/siphash.c */
+#define SIPROUND SIPHASH_PERMUTATION(v0, v1, v2, v3)
+
+#define PREAMBLE(len) \
+	u64 v0 = SIPHASH_CONST_0; \
+	u64 v1 = SIPHASH_CONST_1; \
+	u64 v2 = SIPHASH_CONST_2; \
+	u64 v3 = SIPHASH_CONST_3; \
+	u64 b = ((u64)(len)) << 56; \
+	v3 ^= key->key[1]; \
+	v2 ^= key->key[0]; \
+	v1 ^= key->key[1]; \
+	v0 ^= key->key[0];
+
+#define POSTAMBLE \
+	v3 ^= b; \
+	SIPROUND; \
+	SIPROUND; \
+	v0 ^= b; \
+	v2 ^= 0xff; \
+	SIPROUND; \
+	SIPROUND; \
+	SIPROUND; \
+	SIPROUND; \
+	return (v0 ^ v1) ^ (v2 ^ v3);
+
+static inline u64 siphash_2u64(const u64 first, const u64 second, const siphash_key_t *key)
+{
+	PREAMBLE(16)
+	v3 ^= first;
+	SIPROUND;
+	SIPROUND;
+	v0 ^= first;
+	v3 ^= second;
+	SIPROUND;
+	SIPROUND;
+	v0 ^= second;
+	POSTAMBLE
+}
+#endif
diff --git a/tools/testing/selftests/bpf/progs/test_sk_assign.c b/tools/testing/selftests/bpf/progs/test_sk_assign.c
new file mode 100644
index 000000000000..3079244c7f96
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_assign.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Cloudflare Ltd.
+// Copyright (c) 2020 Isovalent, Inc.
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/pkt_cls.h>
+#include <linux/tcp.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+
+#if defined(IPROUTE2_HAVE_LIBBPF)
+/* Use a new-style map definition. */
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__type(key, int);
+	__type(value, __u64);
+	__uint(pinning, LIBBPF_PIN_BY_NAME);
+	__uint(max_entries, 1);
+} server_map SEC(".maps");
+#else
+/* Pin map under /sys/fs/bpf/tc/globals/<map name> */
+#define PIN_GLOBAL_NS 2
+
+/* Must match struct bpf_elf_map layout from iproute2 */
+struct {
+	__u32 type;
+	__u32 size_key;
+	__u32 size_value;
+	__u32 max_elem;
+	__u32 flags;
+	__u32 id;
+	__u32 pinning;
+} server_map SEC("maps") = {
+	.type = BPF_MAP_TYPE_SOCKMAP,
+	.size_key = sizeof(int),
+	.size_value  = sizeof(__u64),
+	.max_elem = 1,
+	.pinning = PIN_GLOBAL_NS,
+};
+#endif
+
+char _license[] SEC("license") = "GPL";
+
+/* Fill 'tuple' with L3 info, and attempt to find L4. On fail, return NULL. */
+static inline struct bpf_sock_tuple *
+get_tuple(struct __sk_buff *skb, bool *ipv4, bool *tcp)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct bpf_sock_tuple *result;
+	struct ethhdr *eth;
+	__u8 proto = 0;
+	__u64 ihl_len;
+
+	eth = (struct ethhdr *)(data);
+	if (eth + 1 > data_end)
+		return NULL;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)(data + sizeof(*eth));
+
+		if (iph + 1 > data_end)
+			return NULL;
+		if (iph->ihl != 5)
+			/* Options are not supported */
+			return NULL;
+		ihl_len = iph->ihl * 4;
+		proto = iph->protocol;
+		*ipv4 = true;
+		result = (struct bpf_sock_tuple *)&iph->saddr;
+	} else if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+		struct ipv6hdr *ip6h = (struct ipv6hdr *)(data + sizeof(*eth));
+
+		if (ip6h + 1 > data_end)
+			return NULL;
+		ihl_len = sizeof(*ip6h);
+		proto = ip6h->nexthdr;
+		*ipv4 = false;
+		result = (struct bpf_sock_tuple *)&ip6h->saddr;
+	} else {
+		return (struct bpf_sock_tuple *)data;
+	}
+
+	if (proto != IPPROTO_TCP && proto != IPPROTO_UDP)
+		return NULL;
+
+	*tcp = (proto == IPPROTO_TCP);
+	__sink(ihl_len);
+	return result;
+}
+
+static inline int
+handle_udp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)
+{
+	struct bpf_sock *sk;
+	const int zero = 0;
+	size_t tuple_len;
+	__be16 dport;
+	int ret;
+
+	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);
+	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)
+		return TC_ACT_SHOT;
+
+	sk = bpf_sk_lookup_udp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);
+	if (sk)
+		goto assign;
+
+	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;
+	if (dport != bpf_htons(4321))
+		return TC_ACT_OK;
+
+	sk = bpf_map_lookup_elem(&server_map, &zero);
+	if (!sk)
+		return TC_ACT_SHOT;
+
+assign:
+	ret = bpf_sk_assign(skb, sk, 0);
+	bpf_sk_release(sk);
+	return ret;
+}
+
+static inline int
+handle_tcp(struct __sk_buff *skb, struct bpf_sock_tuple *tuple, bool ipv4)
+{
+	struct bpf_sock *sk;
+	const int zero = 0;
+	size_t tuple_len;
+	__be16 dport;
+	int ret;
+
+	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);
+	if ((void *)tuple + tuple_len > (void *)(long)skb->data_end)
+		return TC_ACT_SHOT;
+
+	sk = bpf_skc_lookup_tcp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);
+	if (sk) {
+		if (sk->state != BPF_TCP_LISTEN)
+			goto assign;
+		bpf_sk_release(sk);
+	}
+
+	dport = ipv4 ? tuple->ipv4.dport : tuple->ipv6.dport;
+	if (dport != bpf_htons(4321))
+		return TC_ACT_OK;
+
+	sk = bpf_map_lookup_elem(&server_map, &zero);
+	if (!sk)
+		return TC_ACT_SHOT;
+
+	if (sk->state != BPF_TCP_LISTEN) {
+		bpf_sk_release(sk);
+		return TC_ACT_SHOT;
+	}
+
+assign:
+	ret = bpf_sk_assign(skb, sk, 0);
+	bpf_sk_release(sk);
+	return ret;
+}
+
+SEC("tc")
+int bpf_sk_assign_test(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple *tuple;
+	bool ipv4 = false;
+	bool tcp = false;
+	int ret = 0;
+
+	tuple = get_tuple(skb, &ipv4, &tcp);
+	if (!tuple)
+		return TC_ACT_SHOT;
+
+	/* Note that the verifier socket return type for bpf_skc_lookup_tcp()
+	 * differs from bpf_sk_lookup_udp(), so even though the C-level type is
+	 * the same here, if we try to share the implementations they will
+	 * fail to verify because we're crossing pointer types.
+	 */
+	if (tcp)
+		ret = handle_tcp(skb, tuple, ipv4);
+	else
+		ret = handle_udp(skb, tuple, ipv4);
+
+	return ret == 0 ? TC_ACT_OK : TC_ACT_SHOT;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_sk_assign_libbpf.c b/tools/testing/selftests/bpf/progs/test_sk_assign_libbpf.c
new file mode 100644
index 000000000000..dcf46adfda04
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_assign_libbpf.c
@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0
+#define IPROUTE2_HAVE_LIBBPF
+#include "test_sk_assign.c"
diff --git a/tools/testing/selftests/bpf/progs/test_sk_lookup.c b/tools/testing/selftests/bpf/progs/test_sk_lookup.c
new file mode 100644
index 000000000000..71f844b9b902
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_lookup.c
@@ -0,0 +1,660 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2020 Cloudflare
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <sys/socket.h>
+
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+#define IP4(a, b, c, d)					\
+	bpf_htonl((((__u32)(a) & 0xffU) << 24) |	\
+		  (((__u32)(b) & 0xffU) << 16) |	\
+		  (((__u32)(c) & 0xffU) <<  8) |	\
+		  (((__u32)(d) & 0xffU) <<  0))
+#define IP6(aaaa, bbbb, cccc, dddd)			\
+	{ bpf_htonl(aaaa), bpf_htonl(bbbb), bpf_htonl(cccc), bpf_htonl(dddd) }
+
+/* Macros for least-significant byte and word accesses. */
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define LSE_INDEX(index, size) (index)
+#else
+#define LSE_INDEX(index, size) ((size) - (index) - 1)
+#endif
+#define LSB(value, index)				\
+	(((__u8 *)&(value))[LSE_INDEX((index), sizeof(value))])
+#define LSW(value, index)				\
+	(((__u16 *)&(value))[LSE_INDEX((index), sizeof(value) / 2)])
+
+#define MAX_SOCKS 32
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, MAX_SOCKS);
+	__type(key, __u32);
+	__type(value, __u64);
+} redir_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, int);
+} run_map SEC(".maps");
+
+enum {
+	PROG1 = 0,
+	PROG2,
+};
+
+enum {
+	SERVER_A = 0,
+	SERVER_B,
+};
+
+/* Addressable key/value constants for convenience */
+static const int KEY_PROG1 = PROG1;
+static const int KEY_PROG2 = PROG2;
+static const int PROG_DONE = 1;
+
+static const __u32 KEY_SERVER_A = SERVER_A;
+static const __u32 KEY_SERVER_B = SERVER_B;
+
+static const __u16 SRC_PORT = bpf_htons(8008);
+static const __u32 SRC_IP4 = IP4(127, 0, 0, 2);
+static const __u32 SRC_IP6[] = IP6(0xfd000000, 0x0, 0x0, 0x00000002);
+
+static const __u16 DST_PORT = 7007; /* Host byte order */
+static const __u32 DST_IP4 = IP4(127, 0, 0, 1);
+static const __u32 DST_IP6[] = IP6(0xfd000000, 0x0, 0x0, 0x00000001);
+
+SEC("sk_lookup")
+int lookup_pass(struct bpf_sk_lookup *ctx)
+{
+	return SK_PASS;
+}
+
+SEC("sk_lookup")
+int lookup_drop(struct bpf_sk_lookup *ctx)
+{
+	return SK_DROP;
+}
+
+SEC("sk_lookup")
+int check_ifindex(struct bpf_sk_lookup *ctx)
+{
+	if (ctx->ingress_ifindex == 1)
+		return SK_DROP;
+	return SK_PASS;
+}
+
+SEC("sk_reuseport")
+int reuseport_pass(struct sk_reuseport_md *ctx)
+{
+	return SK_PASS;
+}
+
+SEC("sk_reuseport")
+int reuseport_drop(struct sk_reuseport_md *ctx)
+{
+	return SK_DROP;
+}
+
+/* Redirect packets destined for port DST_PORT to socket at redir_map[0]. */
+SEC("sk_lookup")
+int redir_port(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	if (ctx->local_port != DST_PORT)
+		return SK_PASS;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_PASS;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	bpf_sk_release(sk);
+	return err ? SK_DROP : SK_PASS;
+}
+
+/* Redirect packets destined for DST_IP4 address to socket at redir_map[0]. */
+SEC("sk_lookup")
+int redir_ip4(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	if (ctx->family != AF_INET)
+		return SK_PASS;
+	if (ctx->local_port != DST_PORT)
+		return SK_PASS;
+	if (ctx->local_ip4 != DST_IP4)
+		return SK_PASS;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_PASS;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	bpf_sk_release(sk);
+	return err ? SK_DROP : SK_PASS;
+}
+
+/* Redirect packets destined for DST_IP6 address to socket at redir_map[0]. */
+SEC("sk_lookup")
+int redir_ip6(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	if (ctx->family != AF_INET6)
+		return SK_PASS;
+	if (ctx->local_port != DST_PORT)
+		return SK_PASS;
+	if (ctx->local_ip6[0] != DST_IP6[0] ||
+	    ctx->local_ip6[1] != DST_IP6[1] ||
+	    ctx->local_ip6[2] != DST_IP6[2] ||
+	    ctx->local_ip6[3] != DST_IP6[3])
+		return SK_PASS;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_PASS;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	bpf_sk_release(sk);
+	return err ? SK_DROP : SK_PASS;
+}
+
+SEC("sk_lookup")
+int select_sock_a(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_PASS;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	bpf_sk_release(sk);
+	return err ? SK_DROP : SK_PASS;
+}
+
+SEC("sk_lookup")
+int select_sock_a_no_reuseport(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_DROP;
+
+	err = bpf_sk_assign(ctx, sk, BPF_SK_LOOKUP_F_NO_REUSEPORT);
+	bpf_sk_release(sk);
+	return err ? SK_DROP : SK_PASS;
+}
+
+SEC("sk_reuseport")
+int select_sock_b(struct sk_reuseport_md *ctx)
+{
+	__u32 key = KEY_SERVER_B;
+	int err;
+
+	err = bpf_sk_select_reuseport(ctx, &redir_map, &key, 0);
+	return err ? SK_DROP : SK_PASS;
+}
+
+/* Check that bpf_sk_assign() returns -EEXIST if socket already selected. */
+SEC("sk_lookup")
+int sk_assign_eexist(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err, ret;
+
+	ret = SK_DROP;
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_B);
+	if (!sk)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, 0);
+	if (err)
+		goto out;
+	bpf_sk_release(sk);
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, 0);
+	if (err != -EEXIST) {
+		bpf_printk("sk_assign returned %d, expected %d\n",
+			   err, -EEXIST);
+		goto out;
+	}
+
+	ret = SK_PASS; /* Success, redirect to KEY_SERVER_B */
+out:
+	if (sk)
+		bpf_sk_release(sk);
+	return ret;
+}
+
+/* Check that bpf_sk_assign(BPF_SK_LOOKUP_F_REPLACE) can override selection. */
+SEC("sk_lookup")
+int sk_assign_replace_flag(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err, ret;
+
+	ret = SK_DROP;
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, 0);
+	if (err)
+		goto out;
+	bpf_sk_release(sk);
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_B);
+	if (!sk)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, BPF_SK_LOOKUP_F_REPLACE);
+	if (err) {
+		bpf_printk("sk_assign returned %d, expected 0\n", err);
+		goto out;
+	}
+
+	ret = SK_PASS; /* Success, redirect to KEY_SERVER_B */
+out:
+	if (sk)
+		bpf_sk_release(sk);
+	return ret;
+}
+
+/* Check that bpf_sk_assign(sk=NULL) is accepted. */
+SEC("sk_lookup")
+int sk_assign_null(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk = NULL;
+	int err, ret;
+
+	ret = SK_DROP;
+
+	err = bpf_sk_assign(ctx, NULL, 0);
+	if (err) {
+		bpf_printk("sk_assign returned %d, expected 0\n", err);
+		goto out;
+	}
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_B);
+	if (!sk)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, BPF_SK_LOOKUP_F_REPLACE);
+	if (err) {
+		bpf_printk("sk_assign returned %d, expected 0\n", err);
+		goto out;
+	}
+
+	if (ctx->sk != sk)
+		goto out;
+	err = bpf_sk_assign(ctx, NULL, 0);
+	if (err != -EEXIST)
+		goto out;
+	err = bpf_sk_assign(ctx, NULL, BPF_SK_LOOKUP_F_REPLACE);
+	if (err)
+		goto out;
+	err = bpf_sk_assign(ctx, sk, BPF_SK_LOOKUP_F_REPLACE);
+	if (err)
+		goto out;
+
+	ret = SK_PASS; /* Success, redirect to KEY_SERVER_B */
+out:
+	if (sk)
+		bpf_sk_release(sk);
+	return ret;
+}
+
+/* Check that selected sk is accessible through context. */
+SEC("sk_lookup")
+int access_ctx_sk(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk1 = NULL, *sk2 = NULL;
+	int err, ret;
+
+	ret = SK_DROP;
+
+	/* Try accessing unassigned (NULL) ctx->sk field */
+	if (ctx->sk && ctx->sk->family != AF_INET)
+		goto out;
+
+	/* Assign a value to ctx->sk */
+	sk1 = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk1)
+		goto out;
+	err = bpf_sk_assign(ctx, sk1, 0);
+	if (err)
+		goto out;
+	if (ctx->sk != sk1)
+		goto out;
+
+	/* Access ctx->sk fields */
+	if (ctx->sk->family != AF_INET ||
+	    ctx->sk->type != SOCK_STREAM ||
+	    ctx->sk->state != BPF_TCP_LISTEN)
+		goto out;
+
+	/* Reset selection */
+	err = bpf_sk_assign(ctx, NULL, BPF_SK_LOOKUP_F_REPLACE);
+	if (err)
+		goto out;
+	if (ctx->sk)
+		goto out;
+
+	/* Assign another socket */
+	sk2 = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_B);
+	if (!sk2)
+		goto out;
+	err = bpf_sk_assign(ctx, sk2, BPF_SK_LOOKUP_F_REPLACE);
+	if (err)
+		goto out;
+	if (ctx->sk != sk2)
+		goto out;
+
+	/* Access reassigned ctx->sk fields */
+	if (ctx->sk->family != AF_INET ||
+	    ctx->sk->type != SOCK_STREAM ||
+	    ctx->sk->state != BPF_TCP_LISTEN)
+		goto out;
+
+	ret = SK_PASS; /* Success, redirect to KEY_SERVER_B */
+out:
+	if (sk1)
+		bpf_sk_release(sk1);
+	if (sk2)
+		bpf_sk_release(sk2);
+	return ret;
+}
+
+/* Check narrow loads from ctx fields that support them.
+ *
+ * Narrow loads of size >= target field size from a non-zero offset
+ * are not covered because they give bogus results, that is the
+ * verifier ignores the offset.
+ */
+SEC("sk_lookup")
+int ctx_narrow_access(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	__u32 val_u32;
+	bool v4;
+
+	v4 = (ctx->family == AF_INET);
+
+	/* Narrow loads from family field */
+	if (LSB(ctx->family, 0) != (v4 ? AF_INET : AF_INET6) ||
+	    LSB(ctx->family, 1) != 0 || LSB(ctx->family, 2) != 0 || LSB(ctx->family, 3) != 0)
+		return SK_DROP;
+	if (LSW(ctx->family, 0) != (v4 ? AF_INET : AF_INET6))
+		return SK_DROP;
+
+	/* Narrow loads from protocol field */
+	if (LSB(ctx->protocol, 0) != IPPROTO_TCP ||
+	    LSB(ctx->protocol, 1) != 0 || LSB(ctx->protocol, 2) != 0 || LSB(ctx->protocol, 3) != 0)
+		return SK_DROP;
+	if (LSW(ctx->protocol, 0) != IPPROTO_TCP)
+		return SK_DROP;
+
+	/* Narrow loads from remote_port field. Expect SRC_PORT. */
+	if (LSB(ctx->remote_port, 0) != ((SRC_PORT >> 0) & 0xff) ||
+	    LSB(ctx->remote_port, 1) != ((SRC_PORT >> 8) & 0xff))
+		return SK_DROP;
+	if (LSW(ctx->remote_port, 0) != SRC_PORT)
+		return SK_DROP;
+
+	/*
+	 * NOTE: 4-byte load from bpf_sk_lookup at remote_port offset
+	 * is quirky. It gets rewritten by the access converter to a
+	 * 2-byte load for backward compatibility. Treating the load
+	 * result as a be16 value makes the code portable across
+	 * little- and big-endian platforms.
+	 */
+	val_u32 = *(__u32 *)&ctx->remote_port;
+	if (val_u32 != SRC_PORT)
+		return SK_DROP;
+
+	/* Narrow loads from local_port field. Expect DST_PORT. */
+	if (LSB(ctx->local_port, 0) != ((DST_PORT >> 0) & 0xff) ||
+	    LSB(ctx->local_port, 1) != ((DST_PORT >> 8) & 0xff) ||
+	    LSB(ctx->local_port, 2) != 0 || LSB(ctx->local_port, 3) != 0)
+		return SK_DROP;
+	if (LSW(ctx->local_port, 0) != DST_PORT)
+		return SK_DROP;
+
+	/* Narrow loads from IPv4 fields */
+	if (v4) {
+		/* Expect SRC_IP4 in remote_ip4 */
+		if (LSB(ctx->remote_ip4, 0) != ((SRC_IP4 >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip4, 1) != ((SRC_IP4 >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip4, 2) != ((SRC_IP4 >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip4, 3) != ((SRC_IP4 >> 24) & 0xff))
+			return SK_DROP;
+		if (LSW(ctx->remote_ip4, 0) != ((SRC_IP4 >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip4, 1) != ((SRC_IP4 >> 16) & 0xffff))
+			return SK_DROP;
+
+		/* Expect DST_IP4 in local_ip4 */
+		if (LSB(ctx->local_ip4, 0) != ((DST_IP4 >> 0) & 0xff) ||
+		    LSB(ctx->local_ip4, 1) != ((DST_IP4 >> 8) & 0xff) ||
+		    LSB(ctx->local_ip4, 2) != ((DST_IP4 >> 16) & 0xff) ||
+		    LSB(ctx->local_ip4, 3) != ((DST_IP4 >> 24) & 0xff))
+			return SK_DROP;
+		if (LSW(ctx->local_ip4, 0) != ((DST_IP4 >> 0) & 0xffff) ||
+		    LSW(ctx->local_ip4, 1) != ((DST_IP4 >> 16) & 0xffff))
+			return SK_DROP;
+	} else {
+		/* Expect 0.0.0.0 IPs when family != AF_INET */
+		if (LSB(ctx->remote_ip4, 0) != 0 || LSB(ctx->remote_ip4, 1) != 0 ||
+		    LSB(ctx->remote_ip4, 2) != 0 || LSB(ctx->remote_ip4, 3) != 0)
+			return SK_DROP;
+		if (LSW(ctx->remote_ip4, 0) != 0 || LSW(ctx->remote_ip4, 1) != 0)
+			return SK_DROP;
+
+		if (LSB(ctx->local_ip4, 0) != 0 || LSB(ctx->local_ip4, 1) != 0 ||
+		    LSB(ctx->local_ip4, 2) != 0 || LSB(ctx->local_ip4, 3) != 0)
+			return SK_DROP;
+		if (LSW(ctx->local_ip4, 0) != 0 || LSW(ctx->local_ip4, 1) != 0)
+			return SK_DROP;
+	}
+
+	/* Narrow loads from IPv6 fields */
+	if (!v4) {
+		/* Expect SRC_IP6 in remote_ip6 */
+		if (LSB(ctx->remote_ip6[0], 0) != ((SRC_IP6[0] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 1) != ((SRC_IP6[0] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 2) != ((SRC_IP6[0] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[0], 3) != ((SRC_IP6[0] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 0) != ((SRC_IP6[1] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 1) != ((SRC_IP6[1] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 2) != ((SRC_IP6[1] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[1], 3) != ((SRC_IP6[1] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 0) != ((SRC_IP6[2] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 1) != ((SRC_IP6[2] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 2) != ((SRC_IP6[2] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[2], 3) != ((SRC_IP6[2] >> 24) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 0) != ((SRC_IP6[3] >> 0) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 1) != ((SRC_IP6[3] >> 8) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 2) != ((SRC_IP6[3] >> 16) & 0xff) ||
+		    LSB(ctx->remote_ip6[3], 3) != ((SRC_IP6[3] >> 24) & 0xff))
+			return SK_DROP;
+		if (LSW(ctx->remote_ip6[0], 0) != ((SRC_IP6[0] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[0], 1) != ((SRC_IP6[0] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[1], 0) != ((SRC_IP6[1] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[1], 1) != ((SRC_IP6[1] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[2], 0) != ((SRC_IP6[2] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[2], 1) != ((SRC_IP6[2] >> 16) & 0xffff) ||
+		    LSW(ctx->remote_ip6[3], 0) != ((SRC_IP6[3] >> 0) & 0xffff) ||
+		    LSW(ctx->remote_ip6[3], 1) != ((SRC_IP6[3] >> 16) & 0xffff))
+			return SK_DROP;
+		/* Expect DST_IP6 in local_ip6 */
+		if (LSB(ctx->local_ip6[0], 0) != ((DST_IP6[0] >> 0) & 0xff) ||
+		    LSB(ctx->local_ip6[0], 1) != ((DST_IP6[0] >> 8) & 0xff) ||
+		    LSB(ctx->local_ip6[0], 2) != ((DST_IP6[0] >> 16) & 0xff) ||
+		    LSB(ctx->local_ip6[0], 3) != ((DST_IP6[0] >> 24) & 0xff) ||
+		    LSB(ctx->local_ip6[1], 0) != ((DST_IP6[1] >> 0) & 0xff) ||
+		    LSB(ctx->local_ip6[1], 1) != ((DST_IP6[1] >> 8) & 0xff) ||
+		    LSB(ctx->local_ip6[1], 2) != ((DST_IP6[1] >> 16) & 0xff) ||
+		    LSB(ctx->local_ip6[1], 3) != ((DST_IP6[1] >> 24) & 0xff) ||
+		    LSB(ctx->local_ip6[2], 0) != ((DST_IP6[2] >> 0) & 0xff) ||
+		    LSB(ctx->local_ip6[2], 1) != ((DST_IP6[2] >> 8) & 0xff) ||
+		    LSB(ctx->local_ip6[2], 2) != ((DST_IP6[2] >> 16) & 0xff) ||
+		    LSB(ctx->local_ip6[2], 3) != ((DST_IP6[2] >> 24) & 0xff) ||
+		    LSB(ctx->local_ip6[3], 0) != ((DST_IP6[3] >> 0) & 0xff) ||
+		    LSB(ctx->local_ip6[3], 1) != ((DST_IP6[3] >> 8) & 0xff) ||
+		    LSB(ctx->local_ip6[3], 2) != ((DST_IP6[3] >> 16) & 0xff) ||
+		    LSB(ctx->local_ip6[3], 3) != ((DST_IP6[3] >> 24) & 0xff))
+			return SK_DROP;
+		if (LSW(ctx->local_ip6[0], 0) != ((DST_IP6[0] >> 0) & 0xffff) ||
+		    LSW(ctx->local_ip6[0], 1) != ((DST_IP6[0] >> 16) & 0xffff) ||
+		    LSW(ctx->local_ip6[1], 0) != ((DST_IP6[1] >> 0) & 0xffff) ||
+		    LSW(ctx->local_ip6[1], 1) != ((DST_IP6[1] >> 16) & 0xffff) ||
+		    LSW(ctx->local_ip6[2], 0) != ((DST_IP6[2] >> 0) & 0xffff) ||
+		    LSW(ctx->local_ip6[2], 1) != ((DST_IP6[2] >> 16) & 0xffff) ||
+		    LSW(ctx->local_ip6[3], 0) != ((DST_IP6[3] >> 0) & 0xffff) ||
+		    LSW(ctx->local_ip6[3], 1) != ((DST_IP6[3] >> 16) & 0xffff))
+			return SK_DROP;
+	} else {
+		/* Expect :: IPs when family != AF_INET6 */
+		if (LSB(ctx->remote_ip6[0], 0) != 0 || LSB(ctx->remote_ip6[0], 1) != 0 ||
+		    LSB(ctx->remote_ip6[0], 2) != 0 || LSB(ctx->remote_ip6[0], 3) != 0 ||
+		    LSB(ctx->remote_ip6[1], 0) != 0 || LSB(ctx->remote_ip6[1], 1) != 0 ||
+		    LSB(ctx->remote_ip6[1], 2) != 0 || LSB(ctx->remote_ip6[1], 3) != 0 ||
+		    LSB(ctx->remote_ip6[2], 0) != 0 || LSB(ctx->remote_ip6[2], 1) != 0 ||
+		    LSB(ctx->remote_ip6[2], 2) != 0 || LSB(ctx->remote_ip6[2], 3) != 0 ||
+		    LSB(ctx->remote_ip6[3], 0) != 0 || LSB(ctx->remote_ip6[3], 1) != 0 ||
+		    LSB(ctx->remote_ip6[3], 2) != 0 || LSB(ctx->remote_ip6[3], 3) != 0)
+			return SK_DROP;
+		if (LSW(ctx->remote_ip6[0], 0) != 0 || LSW(ctx->remote_ip6[0], 1) != 0 ||
+		    LSW(ctx->remote_ip6[1], 0) != 0 || LSW(ctx->remote_ip6[1], 1) != 0 ||
+		    LSW(ctx->remote_ip6[2], 0) != 0 || LSW(ctx->remote_ip6[2], 1) != 0 ||
+		    LSW(ctx->remote_ip6[3], 0) != 0 || LSW(ctx->remote_ip6[3], 1) != 0)
+			return SK_DROP;
+
+		if (LSB(ctx->local_ip6[0], 0) != 0 || LSB(ctx->local_ip6[0], 1) != 0 ||
+		    LSB(ctx->local_ip6[0], 2) != 0 || LSB(ctx->local_ip6[0], 3) != 0 ||
+		    LSB(ctx->local_ip6[1], 0) != 0 || LSB(ctx->local_ip6[1], 1) != 0 ||
+		    LSB(ctx->local_ip6[1], 2) != 0 || LSB(ctx->local_ip6[1], 3) != 0 ||
+		    LSB(ctx->local_ip6[2], 0) != 0 || LSB(ctx->local_ip6[2], 1) != 0 ||
+		    LSB(ctx->local_ip6[2], 2) != 0 || LSB(ctx->local_ip6[2], 3) != 0 ||
+		    LSB(ctx->local_ip6[3], 0) != 0 || LSB(ctx->local_ip6[3], 1) != 0 ||
+		    LSB(ctx->local_ip6[3], 2) != 0 || LSB(ctx->local_ip6[3], 3) != 0)
+			return SK_DROP;
+		if (LSW(ctx->remote_ip6[0], 0) != 0 || LSW(ctx->remote_ip6[0], 1) != 0 ||
+		    LSW(ctx->remote_ip6[1], 0) != 0 || LSW(ctx->remote_ip6[1], 1) != 0 ||
+		    LSW(ctx->remote_ip6[2], 0) != 0 || LSW(ctx->remote_ip6[2], 1) != 0 ||
+		    LSW(ctx->remote_ip6[3], 0) != 0 || LSW(ctx->remote_ip6[3], 1) != 0)
+			return SK_DROP;
+	}
+
+	/* Success, redirect to KEY_SERVER_B */
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_B);
+	if (sk) {
+		bpf_sk_assign(ctx, sk, 0);
+		bpf_sk_release(sk);
+	}
+	return SK_PASS;
+}
+
+/* Check that sk_assign rejects SERVER_A socket with -ESOCKNOSUPPORT */
+SEC("sk_lookup")
+int sk_assign_esocknosupport(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err, ret;
+
+	ret = SK_DROP;
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		goto out;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	if (err != -ESOCKTNOSUPPORT) {
+		bpf_printk("sk_assign returned %d, expected %d\n",
+			   err, -ESOCKTNOSUPPORT);
+		goto out;
+	}
+
+	ret = SK_PASS; /* Success, pass to regular lookup */
+out:
+	if (sk)
+		bpf_sk_release(sk);
+	return ret;
+}
+
+SEC("sk_lookup")
+int multi_prog_pass1(struct bpf_sk_lookup *ctx)
+{
+	bpf_map_update_elem(&run_map, &KEY_PROG1, &PROG_DONE, BPF_ANY);
+	return SK_PASS;
+}
+
+SEC("sk_lookup")
+int multi_prog_pass2(struct bpf_sk_lookup *ctx)
+{
+	bpf_map_update_elem(&run_map, &KEY_PROG2, &PROG_DONE, BPF_ANY);
+	return SK_PASS;
+}
+
+SEC("sk_lookup")
+int multi_prog_drop1(struct bpf_sk_lookup *ctx)
+{
+	bpf_map_update_elem(&run_map, &KEY_PROG1, &PROG_DONE, BPF_ANY);
+	return SK_DROP;
+}
+
+SEC("sk_lookup")
+int multi_prog_drop2(struct bpf_sk_lookup *ctx)
+{
+	bpf_map_update_elem(&run_map, &KEY_PROG2, &PROG_DONE, BPF_ANY);
+	return SK_DROP;
+}
+
+static __always_inline int select_server_a(struct bpf_sk_lookup *ctx)
+{
+	struct bpf_sock *sk;
+	int err;
+
+	sk = bpf_map_lookup_elem(&redir_map, &KEY_SERVER_A);
+	if (!sk)
+		return SK_DROP;
+
+	err = bpf_sk_assign(ctx, sk, 0);
+	bpf_sk_release(sk);
+	if (err)
+		return SK_DROP;
+
+	return SK_PASS;
+}
+
+SEC("sk_lookup")
+int multi_prog_redir1(struct bpf_sk_lookup *ctx)
+{
+	(void)select_server_a(ctx);
+	bpf_map_update_elem(&run_map, &KEY_PROG1, &PROG_DONE, BPF_ANY);
+	return SK_PASS;
+}
+
+SEC("sk_lookup")
+int multi_prog_redir2(struct bpf_sk_lookup *ctx)
+{
+	(void)select_server_a(ctx);
+	bpf_map_update_elem(&run_map, &KEY_PROG2, &PROG_DONE, BPF_ANY);
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "Dual BSD/GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c b/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c
new file mode 100644
index 000000000000..e9efc3263022
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_lookup_kern.c
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+// Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/pkt_cls.h>
+#include <linux/tcp.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+char _license[] SEC("license") = "GPL";
+
+/* Fill 'tuple' with L3 info, and attempt to find L4. On fail, return NULL. */
+static struct bpf_sock_tuple *get_tuple(void *data, __u64 nh_off,
+					void *data_end, __u16 eth_proto,
+					bool *ipv4)
+{
+	struct bpf_sock_tuple *result;
+	__u64 ihl_len = 0;
+	__u8 proto = 0;
+
+	if (eth_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph = (struct iphdr *)(data + nh_off);
+
+		if (iph + 1 > data_end)
+			return NULL;
+		ihl_len = iph->ihl * 4;
+		proto = iph->protocol;
+		*ipv4 = true;
+		result = (struct bpf_sock_tuple *)&iph->saddr;
+	} else if (eth_proto == bpf_htons(ETH_P_IPV6)) {
+		struct ipv6hdr *ip6h = (struct ipv6hdr *)(data + nh_off);
+
+		if (ip6h + 1 > data_end)
+			return NULL;
+		ihl_len = sizeof(*ip6h);
+		proto = ip6h->nexthdr;
+		*ipv4 = true;
+		result = (struct bpf_sock_tuple *)&ip6h->saddr;
+	}
+
+	if (data + nh_off + ihl_len > data_end || proto != IPPROTO_TCP)
+		return NULL;
+
+	return result;
+}
+
+SEC("?tc")
+int sk_lookup_success(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ethhdr *eth = (struct ethhdr *)(data);
+	struct bpf_sock_tuple *tuple;
+	struct bpf_sock *sk;
+	size_t tuple_len;
+	bool ipv4;
+
+	if (eth + 1 > data_end)
+		return TC_ACT_SHOT;
+
+	tuple = get_tuple(data, sizeof(*eth), data_end, eth->h_proto, &ipv4);
+	if (!tuple || tuple + sizeof *tuple > data_end)
+		return TC_ACT_SHOT;
+
+	tuple_len = ipv4 ? sizeof(tuple->ipv4) : sizeof(tuple->ipv6);
+	sk = bpf_sk_lookup_tcp(skb, tuple, tuple_len, BPF_F_CURRENT_NETNS, 0);
+	bpf_printk("sk=%d\n", sk ? 1 : 0);
+	if (sk)
+		bpf_sk_release(sk);
+	return sk ? TC_ACT_OK : TC_ACT_UNSPEC;
+}
+
+SEC("?tc")
+int sk_lookup_success_simple(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	if (sk)
+		bpf_sk_release(sk);
+	return 0;
+}
+
+SEC("?tc")
+int err_use_after_free(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+	__u32 family = 0;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	if (sk) {
+		bpf_sk_release(sk);
+		family = sk->family;
+	}
+	return family;
+}
+
+SEC("?tc")
+int err_modify_sk_pointer(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	if (sk) {
+		sk += 1;
+		bpf_sk_release(sk);
+	}
+	return 0;
+}
+
+SEC("?tc")
+int err_modify_sk_or_null_pointer(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	sk += 1;
+	if (sk)
+		bpf_sk_release(sk);
+	return 0;
+}
+
+SEC("?tc")
+int err_no_release(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+
+	bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	return 0;
+}
+
+SEC("?tc")
+int err_release_twice(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	bpf_sk_release(sk);
+	bpf_sk_release(sk);
+	return 0;
+}
+
+SEC("?tc")
+int err_release_unchecked(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	struct bpf_sock *sk;
+
+	sk = bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+	bpf_sk_release(sk);
+	return 0;
+}
+
+void lookup_no_release(struct __sk_buff *skb)
+{
+	struct bpf_sock_tuple tuple = {};
+	bpf_sk_lookup_tcp(skb, &tuple, sizeof(tuple), BPF_F_CURRENT_NETNS, 0);
+}
+
+SEC("?tc")
+int err_no_release_subcall(struct __sk_buff *skb)
+{
+	lookup_no_release(skb);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_sk_storage_trace_itself.c b/tools/testing/selftests/bpf/progs/test_sk_storage_trace_itself.c
new file mode 100644
index 000000000000..59ef72d02a61
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_storage_trace_itself.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_stg_map SEC(".maps");
+
+SEC("fentry/bpf_sk_storage_free")
+int BPF_PROG(trace_bpf_sk_storage_free, struct sock *sk)
+{
+	int *value;
+
+	value = bpf_sk_storage_get(&sk_stg_map, sk, 0,
+				   BPF_SK_STORAGE_GET_F_CREATE);
+
+	if (value)
+		*value = 1;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c
new file mode 100644
index 000000000000..40531e56776e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sk_storage_tracing.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+
+struct sk_stg {
+	__u32 pid;
+	__u32 last_notclose_state;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct sk_stg);
+} sk_stg_map SEC(".maps");
+
+/* Testing delete */
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} del_sk_stg_map SEC(".maps");
+
+char task_comm[16] = "";
+
+SEC("tp_btf/inet_sock_set_state")
+int BPF_PROG(trace_inet_sock_set_state, struct sock *sk, int oldstate,
+	     int newstate)
+{
+	struct sk_stg *stg;
+
+	if (newstate == BPF_TCP_CLOSE)
+		return 0;
+
+	stg = bpf_sk_storage_get(&sk_stg_map, sk, 0,
+				 BPF_SK_STORAGE_GET_F_CREATE);
+	if (!stg)
+		return 0;
+
+	stg->last_notclose_state = newstate;
+
+	bpf_sk_storage_delete(&del_sk_stg_map, sk);
+
+	return 0;
+}
+
+static void set_task_info(struct sock *sk)
+{
+	struct task_struct *task;
+	struct sk_stg *stg;
+
+	stg = bpf_sk_storage_get(&sk_stg_map, sk, 0,
+				 BPF_SK_STORAGE_GET_F_CREATE);
+	if (!stg)
+		return;
+
+	stg->pid = bpf_get_current_pid_tgid();
+
+	task = (struct task_struct *)bpf_get_current_task();
+	bpf_core_read_str(&stg->comm, sizeof(stg->comm), &task->comm);
+	bpf_core_read_str(&task_comm, sizeof(task_comm), &task->comm);
+}
+
+SEC("fentry/inet_csk_listen_start")
+int BPF_PROG(trace_inet_csk_listen_start, struct sock *sk)
+{
+	set_task_info(sk);
+
+	return 0;
+}
+
+SEC("fentry/tcp_connect")
+int BPF_PROG(trace_tcp_connect, struct sock *sk)
+{
+	set_task_info(sk);
+
+	return 0;
+}
+
+SEC("fexit/inet_csk_accept")
+int BPF_PROG(inet_csk_accept, struct sock *sk, struct proto_accept_arg *arg,
+	     struct sock *accepted_sk)
+{
+	set_task_info(accepted_sk);
+
+	return 0;
+}
+
+SEC("tp_btf/tcp_retransmit_synack")
+int BPF_PROG(tcp_retransmit_synack, struct sock* sk, struct request_sock* req)
+{
+	/* load only test */
+	bpf_sk_storage_get(&sk_stg_map, sk, 0, 0);
+	bpf_sk_storage_get(&sk_stg_map, req->sk, 0, 0);
+	return 0;
+}
+
+SEC("tp_btf/tcp_bad_csum")
+int BPF_PROG(tcp_bad_csum, struct sk_buff* skb)
+{
+	bpf_sk_storage_get(&sk_stg_map, skb->sk, 0, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_skb_ctx.c b/tools/testing/selftests/bpf/progs/test_skb_ctx.c
new file mode 100644
index 000000000000..a724a70c6700
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_skb_ctx.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("tc")
+int process(struct __sk_buff *skb)
+{
+	__pragma_loop_unroll_full
+	for (int i = 0; i < 5; i++) {
+		if (skb->cb[i] != i + 1)
+			return 1;
+		skb->cb[i]++;
+	}
+	skb->priority++;
+	skb->tstamp++;
+	skb->mark++;
+
+	if (skb->wire_len != 100)
+		return 1;
+	if (skb->gso_segs != 8)
+		return 1;
+	if (skb->gso_size != 10)
+		return 1;
+	if (skb->ingress_ifindex != 11)
+		return 1;
+	if (skb->ifindex != 1)
+		return 1;
+	if (skb->hwtstamp != 11)
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_skb_helpers.c b/tools/testing/selftests/bpf/progs/test_skb_helpers.c
new file mode 100644
index 000000000000..507215791c5b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_skb_helpers.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define TEST_COMM_LEN 16
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, u32);
+	__type(value, u32);
+} cgroup_map SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+SEC("tc")
+int test_skb_helpers(struct __sk_buff *skb)
+{
+	struct task_struct *task;
+	char comm[TEST_COMM_LEN];
+	__u32 tpid;
+
+	task = (struct task_struct *)bpf_get_current_task();
+	bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid);
+	bpf_probe_read_kernel_str(&comm, sizeof(comm), &task->comm);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_skc_to_unix_sock.c b/tools/testing/selftests/bpf/progs/test_skc_to_unix_sock.c
new file mode 100644
index 000000000000..4cfa42aa9436
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_skc_to_unix_sock.c
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021 Hengqi Chen */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_tracing_net.h"
+
+const volatile pid_t my_pid = 0;
+char path[256] = {};
+
+SEC("fentry/unix_listen")
+int BPF_PROG(unix_listen, struct socket *sock, int backlog)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+	struct unix_sock *unix_sk;
+	int i, len;
+
+	if (pid != my_pid)
+		return 0;
+
+	unix_sk = (struct unix_sock *)bpf_skc_to_unix_sock(sock->sk);
+	if (!unix_sk)
+		return 0;
+
+	if (unix_sk->addr->name->sun_path[0])
+		return 0;
+
+	len = unix_sk->addr->len - sizeof(short);
+	path[0] = '@';
+	for (i = 1; i < len; i++) {
+		if (i >= (int)sizeof(struct sockaddr_un))
+			break;
+
+		path[i] = unix_sk->addr->name->sun_path[i];
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c
new file mode 100644
index 000000000000..adece9f91f58
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_skeleton.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define __read_mostly SEC(".data.read_mostly")
+
+struct s {
+	int a;
+	long long b;
+} __attribute__((packed));
+
+/* .data section */
+int in1 = -1;
+long long in2 = -1;
+
+/* .bss section */
+char in3 = '\0';
+long long in4 __attribute__((aligned(64))) = 0;
+struct s in5 = {};
+
+/* .rodata section */
+const volatile struct {
+	const int in6;
+} in = {};
+
+/* .data section */
+int out1 = -1;
+long long out2 = -1;
+
+/* .bss section */
+char out3 = 0;
+long long out4 = 0;
+int out6 = 0;
+
+extern bool CONFIG_BPF_SYSCALL __kconfig;
+extern int LINUX_KERNEL_VERSION __kconfig;
+bool bpf_syscall = 0;
+int kern_ver = 0;
+
+struct s out5 = {};
+
+
+const volatile int in_dynarr_sz SEC(".rodata.dyn");
+const volatile int in_dynarr[4] SEC(".rodata.dyn") = { -1, -2, -3, -4 };
+
+int out_dynarr[4] SEC(".data.dyn") = { 1, 2, 3, 4 };
+
+int read_mostly_var __read_mostly;
+int out_mostly_var;
+
+char huge_arr[16 * 1024 * 1024];
+
+/* non-mmapable custom .data section */
+
+struct my_value { int x, y, z; };
+
+__hidden int zero_key SEC(".data.non_mmapable");
+static struct my_value zero_value SEC(".data.non_mmapable");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct my_value);
+	__uint(max_entries, 1);
+} my_map SEC(".maps");
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	int i;
+
+	out1 = in1;
+	out2 = in2;
+	out3 = in3;
+	out4 = in4;
+	out5 = in5;
+	out6 = in.in6;
+
+	bpf_syscall = CONFIG_BPF_SYSCALL;
+	kern_ver = LINUX_KERNEL_VERSION;
+
+	for (i = 0; i < in_dynarr_sz; i++)
+		out_dynarr[i] = in_dynarr[i];
+
+	out_mostly_var = read_mostly_var;
+
+	huge_arr[sizeof(huge_arr) - 1] = 123;
+
+	/* make sure zero_key and zero_value are not optimized out */
+	bpf_map_update_elem(&my_map, &zero_key, &zero_value, BPF_ANY);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c b/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c
new file mode 100644
index 000000000000..996b177324ba
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_skmsg_load_helpers.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Isovalent, Inc.
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, __u32);
+	__type(value, __u64);
+} socket_storage SEC(".maps");
+
+static int prog_msg_verdict_common(struct sk_msg_md *msg)
+{
+	struct task_struct *task = (struct task_struct *)bpf_get_current_task();
+	int verdict = SK_PASS;
+	__u32 pid, tpid;
+	__u64 *sk_stg;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	sk_stg = bpf_sk_storage_get(&socket_storage, msg->sk, 0, BPF_SK_STORAGE_GET_F_CREATE);
+	if (!sk_stg)
+		return SK_DROP;
+	*sk_stg = pid;
+	bpf_probe_read_kernel(&tpid , sizeof(tpid), &task->tgid);
+	if (pid != tpid)
+		verdict = SK_DROP;
+	bpf_sk_storage_delete(&socket_storage, (void *)msg->sk);
+	return verdict;
+}
+
+SEC("sk_msg")
+int prog_msg_verdict(struct sk_msg_md *msg)
+{
+	return prog_msg_verdict_common(msg);
+}
+
+SEC("sk_msg")
+int prog_msg_verdict_clone(struct sk_msg_md *msg)
+{
+	return prog_msg_verdict_common(msg);
+}
+
+SEC("sk_msg")
+int prog_msg_verdict_clone2(struct sk_msg_md *msg)
+{
+	return prog_msg_verdict_common(msg);
+}
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_snprintf.c b/tools/testing/selftests/bpf/progs/test_snprintf.c
new file mode 100644
index 000000000000..8fda07544023
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_snprintf.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Google LLC. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+__u32 pid = 0;
+
+char num_out[64] = {};
+long num_ret = 0;
+
+char ip_out[64] = {};
+long ip_ret = 0;
+
+char sym_out[64] = {};
+long sym_ret = 0;
+
+char addr_out[64] = {};
+long addr_ret = 0;
+
+char str_out[64] = {};
+long str_ret = 0;
+
+char over_out[6] = {};
+long over_ret = 0;
+
+char pad_out[10] = {};
+long pad_ret = 0;
+
+char noarg_out[64] = {};
+long noarg_ret = 0;
+
+long nobuf_ret = 0;
+
+extern const void schedule __ksym;
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	/* Convenient values to pretty-print */
+	const __u8 ex_ipv4[] = {127, 0, 0, 1};
+	const __u8 ex_ipv6[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
+	static const char str1[] = "str1";
+	static const char longstr[] = "longstr";
+
+	if ((int)bpf_get_current_pid_tgid() != pid)
+		return 0;
+
+	/* Integer types */
+	num_ret  = BPF_SNPRINTF(num_out, sizeof(num_out),
+				"%d %u %x %li %llu %lX",
+				-8, 9, 150, -424242, 1337, 0xDABBAD00);
+	/* IP addresses */
+	ip_ret   = BPF_SNPRINTF(ip_out, sizeof(ip_out), "%pi4 %pI6",
+				&ex_ipv4, &ex_ipv6);
+	/* Symbol lookup formatting */
+	sym_ret  = BPF_SNPRINTF(sym_out,  sizeof(sym_out), "%ps %pS %pB",
+				&schedule, &schedule, &schedule);
+	/* Kernel pointers */
+	addr_ret = BPF_SNPRINTF(addr_out, sizeof(addr_out), "%pK %px %p",
+				0, 0xFFFF00000ADD4E55, 0xFFFF00000ADD4E55);
+	/* Strings and single-byte character embedding */
+	str_ret  = BPF_SNPRINTF(str_out, sizeof(str_out), "%s % 9c %+2c %-3c %04c %0c %+05s",
+				str1, 'a', 'b', 'c', 'd', 'e', longstr);
+	/* Overflow */
+	over_ret = BPF_SNPRINTF(over_out, sizeof(over_out), "%%overflow");
+	/* Padding of fixed width numbers */
+	pad_ret = BPF_SNPRINTF(pad_out, sizeof(pad_out), "%5d %0900000X", 4, 4);
+	/* No args */
+	noarg_ret = BPF_SNPRINTF(noarg_out, sizeof(noarg_out), "simple case");
+	/* No buffer */
+	nobuf_ret = BPF_SNPRINTF(NULL, 0, "only interested in length %d", 60);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_snprintf_single.c b/tools/testing/selftests/bpf/progs/test_snprintf_single.c
new file mode 100644
index 000000000000..3095837334d3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_snprintf_single.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Google LLC. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* The format string is filled from the userspace such that loading fails */
+const char fmt[10];
+
+SEC("raw_tp/sys_enter")
+int handler(const void *ctx)
+{
+	unsigned long long arg = 42;
+
+	bpf_snprintf(NULL, 0, fmt, &arg, sizeof(arg));
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sock_fields.c b/tools/testing/selftests/bpf/progs/test_sock_fields.c
new file mode 100644
index 000000000000..196844be349c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sock_fields.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019 Facebook */
+
+#include <linux/bpf.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+enum bpf_linum_array_idx {
+	EGRESS_LINUM_IDX,
+	INGRESS_LINUM_IDX,
+	READ_SK_DST_PORT_LINUM_IDX,
+	__NR_BPF_LINUM_ARRAY_IDX,
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, __NR_BPF_LINUM_ARRAY_IDX);
+	__type(key, __u32);
+	__type(value, __u32);
+} linum_map SEC(".maps");
+
+struct bpf_spinlock_cnt {
+	struct bpf_spin_lock lock;
+	__u32 cnt;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct bpf_spinlock_cnt);
+} sk_pkt_out_cnt SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct bpf_spinlock_cnt);
+} sk_pkt_out_cnt10 SEC(".maps");
+
+struct tcp_sock {
+	__u32	lsndtime;
+} __attribute__((preserve_access_index));
+
+struct bpf_tcp_sock listen_tp = {};
+struct sockaddr_in6 srv_sa6 = {};
+struct bpf_tcp_sock cli_tp = {};
+struct bpf_tcp_sock srv_tp = {};
+struct bpf_sock listen_sk = {};
+struct bpf_sock srv_sk = {};
+struct bpf_sock cli_sk = {};
+__u64 parent_cg_id = 0;
+__u64 child_cg_id = 0;
+__u64 lsndtime = 0;
+
+static bool is_loopback6(__u32 *a6)
+{
+	return !a6[0] && !a6[1] && !a6[2] && a6[3] == bpf_htonl(1);
+}
+
+static void skcpy(struct bpf_sock *dst,
+		  const struct bpf_sock *src)
+{
+	dst->bound_dev_if = src->bound_dev_if;
+	dst->family = src->family;
+	dst->type = src->type;
+	dst->protocol = src->protocol;
+	dst->mark = src->mark;
+	dst->priority = src->priority;
+	dst->src_ip4 = src->src_ip4;
+	dst->src_ip6[0] = src->src_ip6[0];
+	dst->src_ip6[1] = src->src_ip6[1];
+	dst->src_ip6[2] = src->src_ip6[2];
+	dst->src_ip6[3] = src->src_ip6[3];
+	dst->src_port = src->src_port;
+	dst->dst_ip4 = src->dst_ip4;
+	dst->dst_ip6[0] = src->dst_ip6[0];
+	dst->dst_ip6[1] = src->dst_ip6[1];
+	dst->dst_ip6[2] = src->dst_ip6[2];
+	dst->dst_ip6[3] = src->dst_ip6[3];
+	dst->dst_port = src->dst_port;
+	dst->state = src->state;
+}
+
+static void tpcpy(struct bpf_tcp_sock *dst,
+		  const struct bpf_tcp_sock *src)
+{
+	dst->snd_cwnd = src->snd_cwnd;
+	dst->srtt_us = src->srtt_us;
+	dst->rtt_min = src->rtt_min;
+	dst->snd_ssthresh = src->snd_ssthresh;
+	dst->rcv_nxt = src->rcv_nxt;
+	dst->snd_nxt = src->snd_nxt;
+	dst->snd_una = src->snd_una;
+	dst->mss_cache = src->mss_cache;
+	dst->ecn_flags = src->ecn_flags;
+	dst->rate_delivered = src->rate_delivered;
+	dst->rate_interval_us = src->rate_interval_us;
+	dst->packets_out = src->packets_out;
+	dst->retrans_out = src->retrans_out;
+	dst->total_retrans = src->total_retrans;
+	dst->segs_in = src->segs_in;
+	dst->data_segs_in = src->data_segs_in;
+	dst->segs_out = src->segs_out;
+	dst->data_segs_out = src->data_segs_out;
+	dst->lost_out = src->lost_out;
+	dst->sacked_out = src->sacked_out;
+	dst->bytes_received = src->bytes_received;
+	dst->bytes_acked = src->bytes_acked;
+}
+
+/* Always return CG_OK so that no pkt will be filtered out */
+#define CG_OK 1
+
+#define RET_LOG() ({						\
+	linum = __LINE__;					\
+	bpf_map_update_elem(&linum_map, &linum_idx, &linum, BPF_ANY);	\
+	return CG_OK;						\
+})
+
+SEC("cgroup_skb/egress")
+int egress_read_sock_fields(struct __sk_buff *skb)
+{
+	struct bpf_spinlock_cnt cli_cnt_init = { .lock = {}, .cnt = 0xeB9F };
+	struct bpf_spinlock_cnt *pkt_out_cnt, *pkt_out_cnt10;
+	struct bpf_tcp_sock *tp, *tp_ret;
+	struct bpf_sock *sk, *sk_ret;
+	__u32 linum, linum_idx;
+	struct tcp_sock *ktp;
+
+	linum_idx = EGRESS_LINUM_IDX;
+
+	sk = skb->sk;
+	if (!sk)
+		RET_LOG();
+
+	/* Not testing the egress traffic or the listening socket,
+	 * which are covered by the cgroup_skb/ingress test program.
+	 */
+	if (sk->family != AF_INET6 || !is_loopback6(sk->src_ip6) ||
+	    sk->state == BPF_TCP_LISTEN)
+		return CG_OK;
+
+	if (sk->src_port == bpf_ntohs(srv_sa6.sin6_port)) {
+		/* Server socket */
+		sk_ret = &srv_sk;
+		tp_ret = &srv_tp;
+	} else if (sk->dst_port == srv_sa6.sin6_port) {
+		/* Client socket */
+		sk_ret = &cli_sk;
+		tp_ret = &cli_tp;
+	} else {
+		/* Not the testing egress traffic */
+		return CG_OK;
+	}
+
+	/* It must be a fullsock for cgroup_skb/egress prog */
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		RET_LOG();
+
+	/* Not the testing egress traffic */
+	if (sk->protocol != IPPROTO_TCP)
+		return CG_OK;
+
+	tp = bpf_tcp_sock(sk);
+	if (!tp)
+		RET_LOG();
+
+	skcpy(sk_ret, sk);
+	tpcpy(tp_ret, tp);
+
+	if (sk_ret == &srv_sk) {
+		ktp = bpf_skc_to_tcp_sock(sk);
+
+		if (!ktp)
+			RET_LOG();
+
+		lsndtime = ktp->lsndtime;
+
+		child_cg_id = bpf_sk_cgroup_id(ktp);
+		if (!child_cg_id)
+			RET_LOG();
+
+		parent_cg_id = bpf_sk_ancestor_cgroup_id(ktp, 2);
+		if (!parent_cg_id)
+			RET_LOG();
+
+		/* The userspace has created it for srv sk */
+		pkt_out_cnt = bpf_sk_storage_get(&sk_pkt_out_cnt, ktp, 0, 0);
+		pkt_out_cnt10 = bpf_sk_storage_get(&sk_pkt_out_cnt10, ktp,
+						   0, 0);
+	} else {
+		pkt_out_cnt = bpf_sk_storage_get(&sk_pkt_out_cnt, sk,
+						 &cli_cnt_init,
+						 BPF_SK_STORAGE_GET_F_CREATE);
+		pkt_out_cnt10 = bpf_sk_storage_get(&sk_pkt_out_cnt10,
+						   sk, &cli_cnt_init,
+						   BPF_SK_STORAGE_GET_F_CREATE);
+	}
+
+	if (!pkt_out_cnt || !pkt_out_cnt10)
+		RET_LOG();
+
+	/* Even both cnt and cnt10 have lock defined in their BTF,
+	 * intentionally one cnt takes lock while one does not
+	 * as a test for the spinlock support in BPF_MAP_TYPE_SK_STORAGE.
+	 */
+	pkt_out_cnt->cnt += 1;
+	bpf_spin_lock(&pkt_out_cnt10->lock);
+	pkt_out_cnt10->cnt += 10;
+	bpf_spin_unlock(&pkt_out_cnt10->lock);
+
+	return CG_OK;
+}
+
+SEC("cgroup_skb/ingress")
+int ingress_read_sock_fields(struct __sk_buff *skb)
+{
+	struct bpf_tcp_sock *tp;
+	__u32 linum, linum_idx;
+	struct bpf_sock *sk;
+
+	linum_idx = INGRESS_LINUM_IDX;
+
+	sk = skb->sk;
+	if (!sk)
+		RET_LOG();
+
+	/* Not the testing ingress traffic to the server */
+	if (sk->family != AF_INET6 || !is_loopback6(sk->src_ip6) ||
+	    sk->src_port != bpf_ntohs(srv_sa6.sin6_port))
+		return CG_OK;
+
+	/* Only interested in the listening socket */
+	if (sk->state != BPF_TCP_LISTEN)
+		return CG_OK;
+
+	/* It must be a fullsock for cgroup_skb/ingress prog */
+	sk = bpf_sk_fullsock(sk);
+	if (!sk)
+		RET_LOG();
+
+	tp = bpf_tcp_sock(sk);
+	if (!tp)
+		RET_LOG();
+
+	skcpy(&listen_sk, sk);
+	tpcpy(&listen_tp, tp);
+
+	return CG_OK;
+}
+
+/*
+ * NOTE: 4-byte load from bpf_sock at dst_port offset is quirky. It
+ * gets rewritten by the access converter to a 2-byte load for
+ * backward compatibility. Treating the load result as a be16 value
+ * makes the code portable across little- and big-endian platforms.
+ */
+static __noinline bool sk_dst_port__load_word(struct bpf_sock *sk)
+{
+	__u32 *word = (__u32 *)&sk->dst_port;
+	return word[0] == bpf_htons(0xcafe);
+}
+
+static __noinline bool sk_dst_port__load_half(struct bpf_sock *sk)
+{
+	__u16 *half;
+
+	asm volatile ("");
+	half = (__u16 *)&sk->dst_port;
+	return half[0] == bpf_htons(0xcafe);
+}
+
+static __noinline bool sk_dst_port__load_byte(struct bpf_sock *sk)
+{
+	__u8 *byte = (__u8 *)&sk->dst_port;
+	return byte[0] == 0xca && byte[1] == 0xfe;
+}
+
+SEC("cgroup_skb/egress")
+int read_sk_dst_port(struct __sk_buff *skb)
+{
+	__u32 linum, linum_idx;
+	struct bpf_sock *sk;
+
+	linum_idx = READ_SK_DST_PORT_LINUM_IDX;
+
+	sk = skb->sk;
+	if (!sk)
+		RET_LOG();
+
+	/* Ignore everything but the SYN from the client socket */
+	if (sk->state != BPF_TCP_SYN_SENT)
+		return CG_OK;
+
+	if (!sk_dst_port__load_word(sk))
+		RET_LOG();
+	if (!sk_dst_port__load_half(sk))
+		RET_LOG();
+	if (!sk_dst_port__load_byte(sk))
+		RET_LOG();
+
+	return CG_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockhash_kern.c b/tools/testing/selftests/bpf/progs/test_sockhash_kern.c
new file mode 100644
index 000000000000..e6755916442a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockhash_kern.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
+#undef SOCKMAP
+#define TEST_MAP_TYPE BPF_MAP_TYPE_SOCKHASH
+#include "./test_sockmap_kern.h"
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_change_tail.c b/tools/testing/selftests/bpf/progs/test_sockmap_change_tail.c
new file mode 100644
index 000000000000..1c7941a4ad00
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_change_tail.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 ByteDance */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE __PAGE_SIZE
+#endif
+#define BPF_SKB_MAX_LEN (PAGE_SIZE << 2)
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sock_map_rx SEC(".maps");
+
+long change_tail_ret = 1;
+
+SEC("sk_skb")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	char *data, *data_end;
+
+	bpf_skb_pull_data(skb, 1);
+	data = (char *)(unsigned long)skb->data;
+	data_end = (char *)(unsigned long)skb->data_end;
+
+	if (data + 1 > data_end)
+		return SK_PASS;
+
+	if (data[0] == 'T') { /* Trim the packet */
+		change_tail_ret = bpf_skb_change_tail(skb, skb->len - 1, 0);
+		return SK_PASS;
+	} else if (data[0] == 'G') { /* Grow the packet */
+		change_tail_ret = bpf_skb_change_tail(skb, skb->len + 1, 0);
+		return SK_PASS;
+	} else if (data[0] == 'E') { /* Error */
+		change_tail_ret = bpf_skb_change_tail(skb, BPF_SKB_MAX_LEN, 0);
+		return SK_PASS;
+	}
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_drop_prog.c b/tools/testing/selftests/bpf/progs/test_sockmap_drop_prog.c
new file mode 100644
index 000000000000..29314805ce42
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_drop_prog.c
@@ -0,0 +1,32 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_rx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_tx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_msg SEC(".maps");
+
+SEC("sk_skb")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	return SK_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_invalid_update.c b/tools/testing/selftests/bpf/progs/test_sockmap_invalid_update.c
new file mode 100644
index 000000000000..02a59e220cbc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_invalid_update.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} map SEC(".maps");
+
+SEC("sockops")
+int bpf_sockmap(struct bpf_sock_ops *skops)
+{
+	__u32 key = 0;
+
+	if (skops->sk)
+		bpf_map_update_elem(&map, &key, skops->sk, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_kern.c b/tools/testing/selftests/bpf/progs/test_sockmap_kern.c
new file mode 100644
index 000000000000..677b2ed1cc1e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_kern.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
+#define SOCKMAP
+#define TEST_MAP_TYPE BPF_MAP_TYPE_SOCKMAP
+#include "./test_sockmap_kern.h"
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_kern.h b/tools/testing/selftests/bpf/progs/test_sockmap_kern.h
new file mode 100644
index 000000000000..f48f85f1bd70
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_kern.h
@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2017-2018 Covalent IO, Inc. http://covalent.io */
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/pkt_cls.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_misc.h"
+
+/* Sockmap sample program connects a client and a backend together
+ * using cgroups.
+ *
+ *    client:X <---> frontend:80 client:X <---> backend:80
+ *
+ * For simplicity we hard code values here and bind 1:1. The hard
+ * coded values are part of the setup in sockmap.sh script that
+ * is associated with this BPF program.
+ *
+ * The bpf_printk is verbose and prints information as connections
+ * are established and verdicts are decided.
+ */
+
+struct {
+	__uint(type, TEST_MAP_TYPE);
+	__uint(max_entries, 20);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} sock_map SEC(".maps");
+
+struct {
+	__uint(type, TEST_MAP_TYPE);
+	__uint(max_entries, 20);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} sock_map_txmsg SEC(".maps");
+
+struct {
+	__uint(type, TEST_MAP_TYPE);
+	__uint(max_entries, 20);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} sock_map_redir SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sock_apply_bytes SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sock_cork_bytes SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 6);
+	__type(key, int);
+	__type(value, int);
+} sock_bytes SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sock_redir_flags SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, int);
+	__type(value, int);
+} sock_skb_opts SEC(".maps");
+
+struct {
+	__uint(type, TEST_MAP_TYPE);
+	__uint(max_entries, 20);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} tls_sock_map SEC(".maps");
+
+SEC("sk_skb/stream_parser")
+int bpf_prog1(struct __sk_buff *skb)
+{
+	int *f, two = 2;
+
+	f = bpf_map_lookup_elem(&sock_skb_opts, &two);
+	if (f && *f) {
+		return *f;
+	}
+	return skb->len;
+}
+
+SEC("sk_skb/stream_verdict")
+int bpf_prog2(struct __sk_buff *skb)
+{
+	__u32 lport = skb->local_port;
+	__u32 rport = skb->remote_port;
+	int len, *f, ret, zero = 0;
+	__u64 flags = 0;
+
+	__sink(rport);
+	if (lport == 10000)
+		ret = 10;
+	else
+		ret = 1;
+
+	len = (__u32)skb->data_end - (__u32)skb->data;
+	__sink(len);
+
+	f = bpf_map_lookup_elem(&sock_skb_opts, &zero);
+	if (f && *f) {
+		ret = 3;
+		flags = *f;
+	}
+
+#ifdef SOCKMAP
+	return bpf_sk_redirect_map(skb, &sock_map, ret, flags);
+#else
+	return bpf_sk_redirect_hash(skb, &sock_map, &ret, flags);
+#endif
+
+}
+
+static inline void bpf_write_pass(struct __sk_buff *skb, int offset)
+{
+	int err = bpf_skb_pull_data(skb, 6 + offset);
+	void *data_end;
+	char *c;
+
+	if (err)
+		return;
+
+	c = (char *)(long)skb->data;
+	data_end = (void *)(long)skb->data_end;
+
+	if (c + 5 + offset < data_end)
+		memcpy(c + offset, "PASS", 4);
+}
+
+SEC("sk_skb/stream_verdict")
+int bpf_prog3(struct __sk_buff *skb)
+{
+	int err, *f, ret = SK_PASS;
+	const int one = 1;
+
+	f = bpf_map_lookup_elem(&sock_skb_opts, &one);
+	if (f && *f) {
+		__u64 flags = 0;
+
+		ret = 0;
+		flags = *f;
+
+		err = bpf_skb_adjust_room(skb, -13, 0, 0);
+		if (err)
+			return SK_DROP;
+		err = bpf_skb_adjust_room(skb, 4, 0, 0);
+		if (err)
+			return SK_DROP;
+		bpf_write_pass(skb, 0);
+#ifdef SOCKMAP
+		return bpf_sk_redirect_map(skb, &tls_sock_map, ret, flags);
+#else
+		return bpf_sk_redirect_hash(skb, &tls_sock_map, &ret, flags);
+#endif
+	}
+	err = bpf_skb_adjust_room(skb, 4, 0, 0);
+	if (err)
+		return SK_DROP;
+	bpf_write_pass(skb, 13);
+	return ret;
+}
+
+SEC("sockops")
+int bpf_sockmap(struct bpf_sock_ops *skops)
+{
+	__u32 lport, rport;
+	int op, ret;
+
+	op = (int) skops->op;
+
+	switch (op) {
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		lport = skops->local_port;
+		rport = skops->remote_port;
+
+		if (lport == 10000) {
+			ret = 1;
+#ifdef SOCKMAP
+			bpf_sock_map_update(skops, &sock_map, &ret,
+						  BPF_NOEXIST);
+#else
+			bpf_sock_hash_update(skops, &sock_map, &ret,
+						   BPF_NOEXIST);
+#endif
+		}
+		break;
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		lport = skops->local_port;
+		rport = skops->remote_port;
+
+		if (bpf_ntohl(rport) == 10001) {
+			ret = 10;
+#ifdef SOCKMAP
+			bpf_sock_map_update(skops, &sock_map, &ret,
+						  BPF_NOEXIST);
+#else
+			bpf_sock_hash_update(skops, &sock_map, &ret,
+						   BPF_NOEXIST);
+#endif
+		}
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+SEC("sk_msg")
+int bpf_prog4(struct sk_msg_md *msg)
+{
+	int *bytes, zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5;
+	int *start, *end, *start_push, *end_push, *start_pop, *pop, err = 0;
+
+	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
+	if (bytes)
+		bpf_msg_apply_bytes(msg, *bytes);
+	bytes = bpf_map_lookup_elem(&sock_cork_bytes, &zero);
+	if (bytes)
+		bpf_msg_cork_bytes(msg, *bytes);
+	start = bpf_map_lookup_elem(&sock_bytes, &zero);
+	end = bpf_map_lookup_elem(&sock_bytes, &one);
+	if (start && end)
+		bpf_msg_pull_data(msg, *start, *end, 0);
+	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
+	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_DROP;
+	}
+	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
+	pop = bpf_map_lookup_elem(&sock_bytes, &five);
+	if (start_pop && pop)
+		bpf_msg_pop_data(msg, *start_pop, *pop, 0);
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int bpf_prog6(struct sk_msg_md *msg)
+{
+	int zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5, key = 0;
+	int *bytes, *start, *end, *start_push, *end_push, *start_pop, *pop, *f;
+	int err = 0;
+	__u64 flags = 0;
+
+	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
+	if (bytes)
+		bpf_msg_apply_bytes(msg, *bytes);
+	bytes = bpf_map_lookup_elem(&sock_cork_bytes, &zero);
+	if (bytes)
+		bpf_msg_cork_bytes(msg, *bytes);
+
+	start = bpf_map_lookup_elem(&sock_bytes, &zero);
+	end = bpf_map_lookup_elem(&sock_bytes, &one);
+	if (start && end)
+		bpf_msg_pull_data(msg, *start, *end, 0);
+
+	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
+	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_DROP;
+	}
+
+	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
+	pop = bpf_map_lookup_elem(&sock_bytes, &five);
+	if (start_pop && pop)
+		bpf_msg_pop_data(msg, *start_pop, *pop, 0);
+
+	f = bpf_map_lookup_elem(&sock_redir_flags, &zero);
+	if (f && *f) {
+		key = 2;
+		flags = *f;
+	}
+#ifdef SOCKMAP
+	return bpf_msg_redirect_map(msg, &sock_map_redir, key, flags);
+#else
+	return bpf_msg_redirect_hash(msg, &sock_map_redir, &key, flags);
+#endif
+}
+
+SEC("sk_msg")
+int bpf_prog8(struct sk_msg_md *msg)
+{
+	void *data_end = (void *)(long) msg->data_end;
+	void *data = (void *)(long) msg->data;
+	int ret = 0, *bytes, zero = 0;
+
+	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
+	if (bytes) {
+		ret = bpf_msg_apply_bytes(msg, *bytes);
+		if (ret)
+			return SK_DROP;
+	} else {
+		return SK_DROP;
+	}
+
+	__sink(data_end);
+	__sink(data);
+
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int bpf_prog9(struct sk_msg_md *msg)
+{
+	void *data_end = (void *)(long) msg->data_end;
+	void *data = (void *)(long) msg->data;
+	int ret = 0, *bytes, zero = 0;
+
+	bytes = bpf_map_lookup_elem(&sock_cork_bytes, &zero);
+	if (bytes) {
+		if (((__u64)data_end - (__u64)data) >= *bytes)
+			return SK_PASS;
+		ret = bpf_msg_cork_bytes(msg, *bytes);
+		if (ret)
+			return SK_DROP;
+	}
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int bpf_prog10(struct sk_msg_md *msg)
+{
+	int *bytes, *start, *end, *start_push, *end_push, *start_pop, *pop;
+	int zero = 0, one = 1, two = 2, three = 3, four = 4, five = 5, err = 0;
+
+	bytes = bpf_map_lookup_elem(&sock_apply_bytes, &zero);
+	if (bytes)
+		bpf_msg_apply_bytes(msg, *bytes);
+	bytes = bpf_map_lookup_elem(&sock_cork_bytes, &zero);
+	if (bytes)
+		bpf_msg_cork_bytes(msg, *bytes);
+	start = bpf_map_lookup_elem(&sock_bytes, &zero);
+	end = bpf_map_lookup_elem(&sock_bytes, &one);
+	if (start && end)
+		bpf_msg_pull_data(msg, *start, *end, 0);
+	start_push = bpf_map_lookup_elem(&sock_bytes, &two);
+	end_push = bpf_map_lookup_elem(&sock_bytes, &three);
+	if (start_push && end_push) {
+		err = bpf_msg_push_data(msg, *start_push, *end_push, 0);
+		if (err)
+			return SK_PASS;
+	}
+	start_pop = bpf_map_lookup_elem(&sock_bytes, &four);
+	pop = bpf_map_lookup_elem(&sock_bytes, &five);
+	if (start_pop && pop)
+		bpf_msg_pop_data(msg, *start_pop, *pop, 0);
+	return SK_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c b/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c
new file mode 100644
index 000000000000..83df4919c224
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_ktls.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+int cork_byte;
+int push_start;
+int push_end;
+int apply_bytes;
+int pop_start;
+int pop_end;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map SEC(".maps");
+
+SEC("sk_msg")
+int prog_sk_policy(struct sk_msg_md *msg)
+{
+	if (cork_byte > 0)
+		bpf_msg_cork_bytes(msg, cork_byte);
+	if (push_start > 0 && push_end > 0)
+		bpf_msg_push_data(msg, push_start, push_end, 0);
+	if (pop_start >= 0 && pop_end > 0)
+		bpf_msg_pop_data(msg, pop_start, pop_end, 0);
+
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int prog_sk_policy_redir(struct sk_msg_md *msg)
+{
+	int two = 2;
+
+	bpf_msg_apply_bytes(msg, apply_bytes);
+	return bpf_msg_redirect_map(msg, &sock_map, two, 0);
+}
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_listen.c b/tools/testing/selftests/bpf/progs/test_sockmap_listen.c
new file mode 100644
index 000000000000..b7250eb9c30c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_listen.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+
+#include <errno.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} nop_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, unsigned int);
+} verdict_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} parser_map SEC(".maps");
+
+bool test_sockmap = false; /* toggled by user-space */
+bool test_ingress = false; /* toggled by user-space */
+
+SEC("sk_skb/stream_parser")
+int prog_stream_parser(struct __sk_buff *skb)
+{
+	int *value;
+	__u32 key = 0;
+
+	value = bpf_map_lookup_elem(&parser_map, &key);
+	if (value && *value)
+		return *value;
+
+	return skb->len;
+}
+
+SEC("sk_skb/stream_verdict")
+int prog_stream_verdict(struct __sk_buff *skb)
+{
+	unsigned int *count;
+	__u32 zero = 0;
+	int verdict;
+
+	if (test_sockmap)
+		verdict = bpf_sk_redirect_map(skb, &sock_map, zero, 0);
+	else
+		verdict = bpf_sk_redirect_hash(skb, &sock_hash, &zero, 0);
+
+	count = bpf_map_lookup_elem(&verdict_map, &verdict);
+	if (count)
+		(*count)++;
+
+	return verdict;
+}
+
+SEC("sk_skb")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	unsigned int *count;
+	__u32 zero = 0;
+	int verdict;
+
+	if (test_sockmap)
+		verdict = bpf_sk_redirect_map(skb, &sock_map, zero,
+					      test_ingress ? BPF_F_INGRESS : 0);
+	else
+		verdict = bpf_sk_redirect_hash(skb, &sock_hash, &zero,
+					       test_ingress ? BPF_F_INGRESS : 0);
+
+	count = bpf_map_lookup_elem(&verdict_map, &verdict);
+	if (count)
+		(*count)++;
+
+	return verdict;
+}
+
+SEC("sk_msg")
+int prog_msg_verdict(struct sk_msg_md *msg)
+{
+	unsigned int *count;
+	__u32 zero = 0;
+	int verdict;
+
+	if (test_sockmap)
+		verdict = bpf_msg_redirect_map(msg, &sock_map, zero, 0);
+	else
+		verdict = bpf_msg_redirect_hash(msg, &sock_hash, &zero, 0);
+
+	count = bpf_map_lookup_elem(&verdict_map, &verdict);
+	if (count)
+		(*count)++;
+
+	return verdict;
+}
+
+SEC("sk_reuseport")
+int prog_reuseport(struct sk_reuseport_md *reuse)
+{
+	unsigned int *count;
+	int err, verdict;
+	__u32 zero = 0;
+
+	if (test_sockmap)
+		err = bpf_sk_select_reuseport(reuse, &sock_map, &zero, 0);
+	else
+		err = bpf_sk_select_reuseport(reuse, &sock_hash, &zero, 0);
+	verdict = err ? SK_DROP : SK_PASS;
+
+	count = bpf_map_lookup_elem(&verdict_map, &verdict);
+	if (count)
+		(*count)++;
+
+	return verdict;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c b/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c
new file mode 100644
index 000000000000..69aacc96db36
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_pass_prog.c
@@ -0,0 +1,47 @@
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_rx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_tx SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map_msg SEC(".maps");
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	return SK_PASS;
+}
+
+int clone_called;
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict_clone(struct __sk_buff *skb)
+{
+	clone_called = 1;
+	return SK_PASS;
+}
+
+SEC("sk_skb/stream_parser")
+int prog_skb_parser(struct __sk_buff *skb)
+{
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_progs_query.c b/tools/testing/selftests/bpf/progs/test_sockmap_progs_query.c
new file mode 100644
index 000000000000..9d58d61c0dee
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_progs_query.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_map SEC(".maps");
+
+SEC("sk_skb")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	return SK_PASS;
+}
+
+SEC("sk_msg")
+int prog_skmsg_verdict(struct sk_msg_md *msg)
+{
+	return SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_redir.c b/tools/testing/selftests/bpf/progs/test_sockmap_redir.c
new file mode 100644
index 000000000000..34d9f4f2f0a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_redir.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC(".maps") struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} nop_map, sock_map;
+
+SEC(".maps") struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} nop_hash, sock_hash;
+
+SEC(".maps") struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, unsigned int);
+} verdict_map;
+
+/* Set by user space */
+int redirect_type;
+int redirect_flags;
+
+#define redirect_map(__data)                                                   \
+	_Generic((__data),                                                     \
+		 struct __sk_buff * : bpf_sk_redirect_map,                     \
+		 struct sk_msg_md * : bpf_msg_redirect_map                     \
+	)((__data), &sock_map, (__u32){0}, redirect_flags)
+
+#define redirect_hash(__data)                                                  \
+	_Generic((__data),                                                     \
+		 struct __sk_buff * : bpf_sk_redirect_hash,                    \
+		 struct sk_msg_md * : bpf_msg_redirect_hash                    \
+	)((__data), &sock_hash, &(__u32){0}, redirect_flags)
+
+#define DEFINE_PROG(__type, __param)                                           \
+SEC("sk_" XSTR(__type))                                                        \
+int prog_ ## __type ## _verdict(__param data)                                  \
+{                                                                              \
+	unsigned int *count;                                                   \
+	int verdict;                                                           \
+									       \
+	if (redirect_type == BPF_MAP_TYPE_SOCKMAP)                             \
+		verdict = redirect_map(data);                                  \
+	else if (redirect_type == BPF_MAP_TYPE_SOCKHASH)                       \
+		verdict = redirect_hash(data);                                 \
+	else                                                                   \
+		verdict = redirect_type - __MAX_BPF_MAP_TYPE;                  \
+									       \
+	count = bpf_map_lookup_elem(&verdict_map, &verdict);                   \
+	if (count)                                                             \
+		(*count)++;                                                    \
+									       \
+	return verdict;                                                        \
+}
+
+DEFINE_PROG(skb, struct __sk_buff *);
+DEFINE_PROG(msg, struct sk_msg_md *);
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c b/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c
new file mode 100644
index 000000000000..d25b0bb30fc0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_skb_verdict_attach.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __u64);
+} sock_map SEC(".maps");
+
+SEC("sk_skb/verdict")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	return SK_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_strp.c b/tools/testing/selftests/bpf/progs/test_sockmap_strp.c
new file mode 100644
index 000000000000..dde3d5bec515
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_strp.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+int verdict_max_size = 10000;
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 20);
+	__type(key, int);
+	__type(value, int);
+} sock_map SEC(".maps");
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict(struct __sk_buff *skb)
+{
+	__u32 one = 1;
+
+	if (skb->len > verdict_max_size)
+		return SK_PASS;
+
+	return bpf_sk_redirect_map(skb, &sock_map, one, 0);
+}
+
+SEC("sk_skb/stream_verdict")
+int prog_skb_verdict_pass(struct __sk_buff *skb)
+{
+	return SK_PASS;
+}
+
+SEC("sk_skb/stream_parser")
+int prog_skb_parser(struct __sk_buff *skb)
+{
+	return skb->len;
+}
+
+SEC("sk_skb/stream_parser")
+int prog_skb_parser_partial(struct __sk_buff *skb)
+{
+	/* agreement with the test program on a 4-byte size header
+	 * and 6-byte body.
+	 */
+	if (skb->len < 4) {
+		/* need more header to determine full length */
+		return 0;
+	}
+	/* return full length decoded from header.
+	 * the return value may be larger than skb->len which
+	 * means framework must wait body coming.
+	 */
+	return 10;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sockmap_update.c b/tools/testing/selftests/bpf/progs/test_sockmap_update.c
new file mode 100644
index 000000000000..6d64ea536e3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sockmap_update.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Cloudflare
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} src SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} dst_sock_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} dst_sock_hash SEC(".maps");
+
+SEC("tc")
+int copy_sock_map(void *ctx)
+{
+	struct bpf_sock *sk;
+	bool failed = false;
+	__u32 key = 0;
+
+	sk = bpf_map_lookup_elem(&src, &key);
+	if (!sk)
+		return SK_DROP;
+
+	if (bpf_map_update_elem(&dst_sock_map, &key, sk, 0))
+		failed = true;
+
+	if (bpf_map_update_elem(&dst_sock_hash, &key, sk, 0))
+		failed = true;
+
+	bpf_sk_release(sk);
+	return failed ? SK_DROP : SK_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_spin_lock.c b/tools/testing/selftests/bpf/progs/test_spin_lock.c
new file mode 100644
index 000000000000..d8d77bdffd3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_spin_lock.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <linux/version.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct hmap_elem {
+	volatile int cnt;
+	struct bpf_spin_lock lock;
+	int test_padding;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap SEC(".maps");
+
+struct cls_elem {
+	struct bpf_spin_lock lock;
+	volatile int cnt;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, struct cls_elem);
+} cls_map SEC(".maps");
+
+struct bpf_vqueue {
+	struct bpf_spin_lock lock;
+	/* 4 byte hole */
+	unsigned long long lasttime;
+	int credit;
+	unsigned int rate;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct bpf_vqueue);
+} vqueue SEC(".maps");
+
+#define CREDIT_PER_NS(delta, rate) (((delta) * rate) >> 20)
+
+SEC("cgroup_skb/ingress")
+int bpf_spin_lock_test(struct __sk_buff *skb)
+{
+	volatile int credit = 0, max_credit = 100, pkt_len = 64;
+	struct hmap_elem zero = {}, *val;
+	unsigned long long curtime;
+	struct bpf_vqueue *q;
+	struct cls_elem *cls;
+	int key = 0;
+	int err = 0;
+
+	val = bpf_map_lookup_elem(&hmap, &key);
+	if (!val) {
+		bpf_map_update_elem(&hmap, &key, &zero, 0);
+		val = bpf_map_lookup_elem(&hmap, &key);
+		if (!val) {
+			err = 1;
+			goto err;
+		}
+	}
+	/* spin_lock in hash map run time test */
+	bpf_spin_lock(&val->lock);
+	if (val->cnt)
+		val->cnt--;
+	else
+		val->cnt++;
+	if (val->cnt != 0 && val->cnt != 1)
+		err = 1;
+	bpf_spin_unlock(&val->lock);
+
+	/* spin_lock in array. virtual queue demo */
+	q = bpf_map_lookup_elem(&vqueue, &key);
+	if (!q)
+		goto err;
+	curtime = bpf_ktime_get_ns();
+	bpf_spin_lock(&q->lock);
+	q->credit += CREDIT_PER_NS(curtime - q->lasttime, q->rate);
+	q->lasttime = curtime;
+	if (q->credit > max_credit)
+		q->credit = max_credit;
+	q->credit -= pkt_len;
+	credit = q->credit;
+	bpf_spin_unlock(&q->lock);
+
+	__sink(credit);
+
+	/* spin_lock in cgroup local storage */
+	cls = bpf_get_local_storage(&cls_map, 0);
+	bpf_spin_lock(&cls->lock);
+	cls->cnt++;
+	bpf_spin_unlock(&cls->lock);
+
+err:
+	return err;
+}
+
+struct bpf_spin_lock lockA __hidden SEC(".data.A");
+
+__noinline
+static int static_subprog(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	if (ctx->protocol)
+		return ret;
+	return ret + ctx->len;
+}
+
+__noinline
+static int static_subprog_lock(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	ret = static_subprog(ctx);
+	bpf_spin_lock(&lockA);
+	return ret + ctx->len;
+}
+
+__noinline
+static int static_subprog_unlock(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	ret = static_subprog(ctx);
+	bpf_spin_unlock(&lockA);
+	return ret + ctx->len;
+}
+
+SEC("tc")
+int lock_static_subprog_call(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = static_subprog(ctx);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+SEC("tc")
+int lock_static_subprog_lock(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	ret = static_subprog_lock(ctx);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+SEC("tc")
+int lock_static_subprog_unlock(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	ret = static_subprog_unlock(ctx);
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_spin_lock_fail.c b/tools/testing/selftests/bpf/progs/test_spin_lock_fail.c
new file mode 100644
index 000000000000..f678ee6bd7ea
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_spin_lock_fail.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+
+struct foo {
+	struct bpf_spin_lock lock;
+	int data;
+};
+
+struct array_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, int);
+	__type(value, struct foo);
+	__uint(max_entries, 1);
+} array_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct array_map);
+} map_of_maps SEC(".maps") = {
+	.values = {
+		[0] = &array_map,
+	},
+};
+
+static struct bpf_spin_lock lockA SEC(".data.A");
+static struct bpf_spin_lock lockB SEC(".data.B");
+
+SEC("?tc")
+int lock_id_kptr_preserve(void *ctx)
+{
+	struct foo *f;
+
+	f = bpf_obj_new(typeof(*f));
+	if (!f)
+		return 0;
+	bpf_this_cpu_ptr(f);
+	return 0;
+}
+
+SEC("?tc")
+int lock_id_global_zero(void *ctx)
+{
+	bpf_this_cpu_ptr(&lockA);
+	return 0;
+}
+
+SEC("?tc")
+int lock_id_mapval_preserve(void *ctx)
+{
+	struct foo *f;
+	int key = 0;
+
+	f = bpf_map_lookup_elem(&array_map, &key);
+	if (!f)
+		return 0;
+	bpf_this_cpu_ptr(f);
+	return 0;
+}
+
+SEC("?tc")
+int lock_id_innermapval_preserve(void *ctx)
+{
+	struct foo *f;
+	int key = 0;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &key);
+	if (!map)
+		return 0;
+	f = bpf_map_lookup_elem(map, &key);
+	if (!f)
+		return 0;
+	bpf_this_cpu_ptr(f);
+	return 0;
+}
+
+#define CHECK(test, A, B)                                      \
+	SEC("?tc")                                             \
+	int lock_id_mismatch_##test(void *ctx)                 \
+	{                                                      \
+		struct foo *f1, *f2, *v, *iv;                  \
+		int key = 0;                                   \
+		void *map;                                     \
+                                                               \
+		map = bpf_map_lookup_elem(&map_of_maps, &key); \
+		if (!map)                                      \
+			return 0;                              \
+		iv = bpf_map_lookup_elem(map, &key);           \
+		if (!iv)                                       \
+			return 0;                              \
+		v = bpf_map_lookup_elem(&array_map, &key);     \
+		if (!v)                                        \
+			return 0;                              \
+		f1 = bpf_obj_new(typeof(*f1));                 \
+		if (!f1)                                       \
+			return 0;                              \
+		f2 = bpf_obj_new(typeof(*f2));                 \
+		if (!f2) {                                     \
+			bpf_obj_drop(f1);                      \
+			return 0;                              \
+		}                                              \
+		bpf_spin_lock(A);                              \
+		bpf_spin_unlock(B);                            \
+		return 0;                                      \
+	}
+
+CHECK(kptr_kptr, &f1->lock, &f2->lock);
+CHECK(kptr_global, &f1->lock, &lockA);
+CHECK(kptr_mapval, &f1->lock, &v->lock);
+CHECK(kptr_innermapval, &f1->lock, &iv->lock);
+
+CHECK(global_global, &lockA, &lockB);
+CHECK(global_kptr, &lockA, &f1->lock);
+CHECK(global_mapval, &lockA, &v->lock);
+CHECK(global_innermapval, &lockA, &iv->lock);
+
+SEC("?tc")
+int lock_id_mismatch_mapval_mapval(void *ctx)
+{
+	struct foo *f1, *f2;
+	int key = 0;
+
+	f1 = bpf_map_lookup_elem(&array_map, &key);
+	if (!f1)
+		return 0;
+	f2 = bpf_map_lookup_elem(&array_map, &key);
+	if (!f2)
+		return 0;
+
+	bpf_spin_lock(&f1->lock);
+	f1->data = 42;
+	bpf_spin_unlock(&f2->lock);
+
+	return 0;
+}
+
+CHECK(mapval_kptr, &v->lock, &f1->lock);
+CHECK(mapval_global, &v->lock, &lockB);
+CHECK(mapval_innermapval, &v->lock, &iv->lock);
+
+SEC("?tc")
+int lock_id_mismatch_innermapval_innermapval1(void *ctx)
+{
+	struct foo *f1, *f2;
+	int key = 0;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &key);
+	if (!map)
+		return 0;
+	f1 = bpf_map_lookup_elem(map, &key);
+	if (!f1)
+		return 0;
+	f2 = bpf_map_lookup_elem(map, &key);
+	if (!f2)
+		return 0;
+
+	bpf_spin_lock(&f1->lock);
+	f1->data = 42;
+	bpf_spin_unlock(&f2->lock);
+
+	return 0;
+}
+
+SEC("?tc")
+int lock_id_mismatch_innermapval_innermapval2(void *ctx)
+{
+	struct foo *f1, *f2;
+	int key = 0;
+	void *map;
+
+	map = bpf_map_lookup_elem(&map_of_maps, &key);
+	if (!map)
+		return 0;
+	f1 = bpf_map_lookup_elem(map, &key);
+	if (!f1)
+		return 0;
+	map = bpf_map_lookup_elem(&map_of_maps, &key);
+	if (!map)
+		return 0;
+	f2 = bpf_map_lookup_elem(map, &key);
+	if (!f2)
+		return 0;
+
+	bpf_spin_lock(&f1->lock);
+	f1->data = 42;
+	bpf_spin_unlock(&f2->lock);
+
+	return 0;
+}
+
+CHECK(innermapval_kptr, &iv->lock, &f1->lock);
+CHECK(innermapval_global, &iv->lock, &lockA);
+CHECK(innermapval_mapval, &iv->lock, &v->lock);
+
+#undef CHECK
+
+__noinline
+int global_subprog(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	if (ctx->protocol)
+		ret += ctx->protocol;
+	return ret + ctx->mark;
+}
+
+__noinline
+static int static_subprog_call_global(struct __sk_buff *ctx)
+{
+	volatile int ret = 0;
+
+	if (ctx->protocol)
+		return ret;
+	return ret + ctx->len + global_subprog(ctx);
+}
+
+SEC("?tc")
+int lock_global_subprog_call1(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = global_subprog(ctx);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+SEC("?tc")
+int lock_global_subprog_call2(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = static_subprog_call_global(ctx);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+int __noinline
+global_subprog_int(int i)
+{
+	if (i)
+		bpf_printk("%p", &i);
+	return i;
+}
+
+int __noinline
+global_sleepable_helper_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user(&i, sizeof(i), NULL);
+	return i;
+}
+
+int __noinline
+global_sleepable_kfunc_subprog(int i)
+{
+	if (i)
+		bpf_copy_from_user_str(&i, sizeof(i), NULL, 0);
+	global_subprog_int(i);
+	return i;
+}
+
+int __noinline
+global_subprog_calling_sleepable_global(int i)
+{
+	if (!i)
+		global_sleepable_kfunc_subprog(i);
+	return i;
+}
+
+SEC("?syscall")
+int lock_global_sleepable_helper_subprog(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = global_sleepable_helper_subprog(ctx->mark);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+SEC("?syscall")
+int lock_global_sleepable_kfunc_subprog(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = global_sleepable_kfunc_subprog(ctx->mark);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+SEC("?syscall")
+int lock_global_sleepable_subprog_indirect(struct __sk_buff *ctx)
+{
+	int ret = 0;
+
+	bpf_spin_lock(&lockA);
+	if (ctx->mark == 42)
+		ret = global_subprog_calling_sleepable_global(ctx->mark);
+	bpf_spin_unlock(&lockA);
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_stack_map.c b/tools/testing/selftests/bpf/progs/test_stack_map.c
new file mode 100644
index 000000000000..31c3880e6da0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_stack_map.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Politecnico di Torino
+#define MAP_TYPE BPF_MAP_TYPE_STACK
+#include "test_queue_stack_map.h"
diff --git a/tools/testing/selftests/bpf/progs/test_stack_var_off.c b/tools/testing/selftests/bpf/progs/test_stack_var_off.c
new file mode 100644
index 000000000000..665e6ae09d37
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_stack_var_off.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int probe_res;
+
+char input[4] = {};
+int test_pid;
+
+SEC("tracepoint/syscalls/sys_enter_nanosleep")
+int probe(void *ctx)
+{
+	/* This BPF program performs variable-offset reads and writes on a
+	 * stack-allocated buffer.
+	 */
+	char stack_buf[16];
+	unsigned long len;
+	unsigned long last;
+
+	if ((bpf_get_current_pid_tgid() >> 32) != test_pid)
+		return 0;
+
+	/* Copy the input to the stack. */
+	__builtin_memcpy(stack_buf, input, 4);
+
+	/* The first byte in the buffer indicates the length. */
+	len = stack_buf[0] & 0xf;
+	last = (len - 1) & 0xf;
+
+	/* Append something to the buffer. The offset where we write is not
+	 * statically known; this is a variable-offset stack write.
+	 */
+	stack_buf[len] = 42;
+
+	/* Index into the buffer at an unknown offset. This is a
+	 * variable-offset stack read.
+	 *
+	 * Note that if it wasn't for the preceding variable-offset write, this
+	 * read would be rejected because the stack slot cannot be verified as
+	 * being initialized. With the preceding variable-offset write, the
+	 * stack slot still cannot be verified, but the write inhibits the
+	 * respective check on the reasoning that, if there was a
+	 * variable-offset to a higher-or-equal spot, we're probably reading
+	 * what we just wrote.
+	 */
+	probe_res = stack_buf[last];
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c b/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c
new file mode 100644
index 000000000000..0c4426592a26
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_stacktrace_build_id.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018 Facebook
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#ifndef PERF_MAX_STACK_DEPTH
+#define PERF_MAX_STACK_DEPTH         127
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} control_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 16384);
+	__type(key, __u32);
+	__type(value, __u32);
+} stackid_hmap SEC(".maps");
+
+typedef struct bpf_stack_build_id stack_trace_t[PERF_MAX_STACK_DEPTH];
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 128);
+	__uint(map_flags, BPF_F_STACK_BUILD_ID);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stackmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 128);
+	__type(key, __u32);
+	__type(value, stack_trace_t);
+} stack_amap SEC(".maps");
+
+SEC("kprobe/urandom_read_iter")
+int oncpu(struct pt_regs *args)
+{
+	__u32 max_len = sizeof(struct bpf_stack_build_id)
+			* PERF_MAX_STACK_DEPTH;
+	__u32 key = 0, val = 0, *value_p;
+	void *stack_p;
+
+	value_p = bpf_map_lookup_elem(&control_map, &key);
+	if (value_p && *value_p)
+		return 0; /* skip if non-zero *value_p */
+
+	/* The size of stackmap and stackid_hmap should be the same */
+	key = bpf_get_stackid(args, &stackmap, BPF_F_USER_STACK);
+	if ((int)key >= 0) {
+		bpf_map_update_elem(&stackid_hmap, &key, &val, 0);
+		stack_p = bpf_map_lookup_elem(&stack_amap, &key);
+		if (stack_p)
+			bpf_get_stack(args, stack_p, max_len,
+				      BPF_F_USER_STACK | BPF_F_USER_BUILD_ID);
+	}
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_static_linked1.c b/tools/testing/selftests/bpf/progs/test_static_linked1.c
new file mode 100644
index 000000000000..4f0b612e1661
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_static_linked1.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* 8-byte aligned .data */
+static volatile long static_var1 = 2;
+static volatile int static_var2 = 3;
+int var1 = -1;
+/* 4-byte aligned .rodata */
+const volatile int rovar1;
+
+/* same "subprog" name in both files */
+static __noinline int subprog(int x)
+{
+	/* but different formula */
+	return x * 2;
+}
+
+SEC("raw_tp/sys_enter")
+int handler1(const void *ctx)
+{
+	var1 = subprog(rovar1) + static_var1 + static_var2;
+
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
+int VERSION SEC("version") = 1;
diff --git a/tools/testing/selftests/bpf/progs/test_static_linked2.c b/tools/testing/selftests/bpf/progs/test_static_linked2.c
new file mode 100644
index 000000000000..766ebd502a60
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_static_linked2.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* 4-byte aligned .data */
+static volatile int static_var1 = 5;
+static volatile int static_var2 = 6;
+int var2 = -1;
+/* 8-byte aligned .rodata */
+const volatile long rovar2;
+
+/* same "subprog" name in both files */
+static __noinline int subprog(int x)
+{
+	/* but different formula */
+	return x * 3;
+}
+
+SEC("raw_tp/sys_enter")
+int handler2(const void *ctx)
+{
+	var2 = subprog(rovar2) + static_var1 + static_var2;
+
+	return 0;
+}
+
+/* different name and/or type of the variable doesn't matter */
+char _license[] SEC("license") = "GPL";
+int _version SEC("version") = 1;
diff --git a/tools/testing/selftests/bpf/progs/test_subprogs.c b/tools/testing/selftests/bpf/progs/test_subprogs.c
new file mode 100644
index 000000000000..a8d602d7c88a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subprogs.c
@@ -0,0 +1,124 @@
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+const char LICENSE[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} array SEC(".maps");
+
+__noinline int sub1(int x)
+{
+	int key = 0;
+
+	bpf_map_lookup_elem(&array, &key);
+	return x + 1;
+}
+
+static __noinline int sub5(int v);
+
+__noinline int sub2(int y)
+{
+	return sub5(y + 2);
+}
+
+static __noinline int sub3(int z)
+{
+	return z + 3 + sub1(4);
+}
+
+static __noinline int sub4(int w)
+{
+	int key = 0;
+
+	bpf_map_lookup_elem(&array, &key);
+	return w + sub3(5) + sub1(6);
+}
+
+/* sub5() is an identitify function, just to test weirder functions layout and
+ * call patterns
+ */
+static __noinline int sub5(int v)
+{
+	return sub1(v) - 1; /* compensates sub1()'s + 1 */
+}
+
+/* unfortunately verifier rejects `struct task_struct *t` as an unknown pointer
+ * type, so we need to accept pointer as integer and then cast it inside the
+ * function
+ */
+__noinline int get_task_tgid(uintptr_t t)
+{
+	/* this ensures that CO-RE relocs work in multi-subprogs .text */
+	return BPF_CORE_READ((struct task_struct *)(void *)t, tgid);
+}
+
+int res1 = 0;
+int res2 = 0;
+int res3 = 0;
+int res4 = 0;
+
+SEC("raw_tp/sys_enter")
+int prog1(void *ctx)
+{
+	/* perform some CO-RE relocations to ensure they work with multi-prog
+	 * sections correctly
+	 */
+	struct task_struct *t = (void *)bpf_get_current_task();
+
+	if (!BPF_CORE_READ(t, pid) || !get_task_tgid((uintptr_t)t))
+		return 1;
+
+	res1 = sub1(1) + sub3(2); /* (1 + 1) + (2 + 3 + (4 + 1)) = 12 */
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int prog2(void *ctx)
+{
+	struct task_struct *t = (void *)bpf_get_current_task();
+
+	if (!BPF_CORE_READ(t, pid) || !get_task_tgid((uintptr_t)t))
+		return 1;
+
+	res2 = sub2(3) + sub3(4); /* (3 + 2) + (4 + 3 + (4 + 1)) = 17 */
+	return 0;
+}
+
+static int empty_callback(__u32 index, void *data)
+{
+	return 0;
+}
+
+/* prog3 has the same section name as prog1 */
+SEC("raw_tp/sys_enter")
+int prog3(void *ctx)
+{
+	struct task_struct *t = (void *)bpf_get_current_task();
+
+	if (!BPF_CORE_READ(t, pid) || !get_task_tgid((uintptr_t)t))
+		return 1;
+
+	/* test that ld_imm64 with BPF_PSEUDO_FUNC doesn't get blinded */
+	bpf_loop(1, empty_callback, NULL, 0);
+
+	res3 = sub3(5) + 6; /* (5 + 3 + (4 + 1)) + 6 = 19 */
+	return 0;
+}
+
+/* prog4 has the same section name as prog2 */
+SEC("raw_tp/sys_exit")
+int prog4(void *ctx)
+{
+	struct task_struct *t = (void *)bpf_get_current_task();
+
+	if (!BPF_CORE_READ(t, pid) || !get_task_tgid((uintptr_t)t))
+		return 1;
+
+	res4 = sub4(7) + sub1(8); /* (7 + (5 + 3 + (4 + 1)) + (6 + 1)) + (8 + 1) = 36 */
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_subprogs_extable.c b/tools/testing/selftests/bpf/progs/test_subprogs_extable.c
new file mode 100644
index 000000000000..dcac69f5928a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subprogs_extable.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 8);
+	__type(key, __u32);
+	__type(value, __u64);
+} test_array SEC(".maps");
+
+unsigned int triggered;
+
+static __u64 test_cb(struct bpf_map *map, __u32 *key, __u64 *val, void *data)
+{
+	return 1;
+}
+
+SEC("fexit/bpf_testmod_return_ptr")
+int BPF_PROG(handle_fexit_ret_subprogs, int arg, struct file *ret)
+{
+	*(volatile int *)ret;
+	*(volatile int *)&ret->f_mode;
+	bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
+	triggered++;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_return_ptr")
+int BPF_PROG(handle_fexit_ret_subprogs2, int arg, struct file *ret)
+{
+	*(volatile int *)ret;
+	*(volatile int *)&ret->f_mode;
+	bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
+	triggered++;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_return_ptr")
+int BPF_PROG(handle_fexit_ret_subprogs3, int arg, struct file *ret)
+{
+	*(volatile int *)ret;
+	*(volatile int *)&ret->f_mode;
+	bpf_for_each_map_elem(&test_array, test_cb, NULL, 0);
+	triggered++;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_subprogs_unused.c b/tools/testing/selftests/bpf/progs/test_subprogs_unused.c
new file mode 100644
index 000000000000..bc49e050d342
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subprogs_unused.c
@@ -0,0 +1,21 @@
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+const char LICENSE[] SEC("license") = "GPL";
+
+__attribute__((unused)) __noinline int unused1(int x)
+{
+	return x + 1;
+}
+
+static __attribute__((unused)) __noinline int unused2(int x)
+{
+	return x + 2;
+}
+
+SEC("raw_tp/sys_enter")
+int main_prog(void *ctx)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_subskeleton.c b/tools/testing/selftests/bpf/progs/test_subskeleton.c
new file mode 100644
index 000000000000..006417974372
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subskeleton.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* volatile to force a read, compiler may assume 0 otherwise */
+const volatile int rovar1;
+int out1;
+
+/* Override weak symbol in test_subskeleton_lib */
+int var5 = 5;
+
+extern volatile bool CONFIG_BPF_SYSCALL __kconfig;
+
+extern int lib_routine(void);
+
+SEC("raw_tp/sys_enter")
+int handler1(const void *ctx)
+{
+	(void) CONFIG_BPF_SYSCALL;
+
+	out1 = lib_routine() * rovar1;
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_subskeleton_lib.c b/tools/testing/selftests/bpf/progs/test_subskeleton_lib.c
new file mode 100644
index 000000000000..ecfafe812c36
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subskeleton_lib.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+/* volatile to force a read */
+const volatile int var1;
+volatile int var2 = 1;
+struct {
+	int var3_1;
+	__s64 var3_2;
+} var3;
+int libout1;
+
+extern volatile bool CONFIG_BPF_SYSCALL __kconfig;
+
+int var4[4];
+
+__weak int var5 SEC(".data");
+
+/* Fully contained within library extern-and-definition */
+extern int var6;
+
+int var7 SEC(".data.custom");
+
+int (*fn_ptr)(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 16);
+} map1 SEC(".maps");
+
+extern struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 16);
+} map2 SEC(".maps");
+
+int lib_routine(void)
+{
+	__u32 key = 1, value = 2;
+
+	(void) CONFIG_BPF_SYSCALL;
+	bpf_map_update_elem(&map2, &key, &value, BPF_ANY);
+
+	libout1 = var1 + var2 + var3.var3_1 + var3.var3_2 + var5 + var6;
+	return libout1;
+}
+
+SEC("perf_event")
+int lib_perf_handler(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_subskeleton_lib2.c b/tools/testing/selftests/bpf/progs/test_subskeleton_lib2.c
new file mode 100644
index 000000000000..80238486b7ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_subskeleton_lib2.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int var6 = 6;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 16);
+} map2 SEC(".maps");
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c
new file mode 100644
index 000000000000..548660e299a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop1.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+#include "bpf_misc.h"
+
+/* tcp_mem sysctl has only 3 ints, but this test is doing TCP_MEM_LOOPS */
+#define TCP_MEM_LOOPS 28  /* because 30 doesn't fit into 512 bytes of stack */
+#define MAX_ULONG_STR_LEN 7
+#define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN)
+
+const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string";
+static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned char i;
+	char name[sizeof(tcp_mem_name)];
+	int ret;
+
+	memset(name, 0, sizeof(name));
+	ret = bpf_sysctl_get_name(ctx, name, sizeof(name), 0);
+	if (ret < 0 || ret != sizeof(tcp_mem_name) - 1)
+		return 0;
+
+	__pragma_loop_no_unroll
+	for (i = 0; i < sizeof(tcp_mem_name); ++i)
+		if (name[i] != tcp_mem_name[i])
+			return 0;
+
+	return 1;
+}
+
+SEC("cgroup/sysctl")
+int sysctl_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned long tcp_mem[TCP_MEM_LOOPS] = {};
+	char value[MAX_VALUE_STR_LEN];
+	unsigned char i, off = 0;
+	/* a workaround to prevent compiler from generating
+	 * codes verifier cannot handle yet.
+	 */
+	volatile int ret;
+
+	if (ctx->write)
+		return 0;
+
+	if (!is_tcp_mem(ctx))
+		return 0;
+
+	ret = bpf_sysctl_get_current_value(ctx, value, MAX_VALUE_STR_LEN);
+	if (ret < 0 || ret >= MAX_VALUE_STR_LEN)
+		return 0;
+
+	__pragma_loop_no_unroll
+	for (i = 0; i < ARRAY_SIZE(tcp_mem); ++i) {
+		ret = bpf_strtoul(value + off, MAX_ULONG_STR_LEN, 0,
+				  tcp_mem + i);
+		if (ret <= 0 || ret > MAX_ULONG_STR_LEN)
+			return 0;
+		off += ret & MAX_ULONG_STR_LEN;
+	}
+
+	return tcp_mem[0] < tcp_mem[1] && tcp_mem[1] < tcp_mem[2];
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c
new file mode 100644
index 000000000000..81249d119a8b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sysctl_loop2.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+#include "bpf_misc.h"
+
+/* tcp_mem sysctl has only 3 ints, but this test is doing TCP_MEM_LOOPS */
+#define TCP_MEM_LOOPS 20  /* because 30 doesn't fit into 512 bytes of stack */
+#define MAX_ULONG_STR_LEN 7
+#define MAX_VALUE_STR_LEN (TCP_MEM_LOOPS * MAX_ULONG_STR_LEN)
+
+const char tcp_mem_name[] = "net/ipv4/tcp_mem/very_very_very_very_long_pointless_string_to_stress_byte_loop";
+static __attribute__((noinline)) int is_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned char i;
+	char name[sizeof(tcp_mem_name)];
+	int ret;
+
+	memset(name, 0, sizeof(name));
+	ret = bpf_sysctl_get_name(ctx, name, sizeof(name), 0);
+	if (ret < 0 || ret != sizeof(tcp_mem_name) - 1)
+		return 0;
+
+	__pragma_loop_no_unroll
+	for (i = 0; i < sizeof(tcp_mem_name); ++i)
+		if (name[i] != tcp_mem_name[i])
+			return 0;
+
+	return 1;
+}
+
+
+SEC("cgroup/sysctl")
+int sysctl_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned long tcp_mem[TCP_MEM_LOOPS] = {};
+	char value[MAX_VALUE_STR_LEN];
+	unsigned char i, off = 0;
+	int ret;
+
+	if (ctx->write)
+		return 0;
+
+	if (!is_tcp_mem(ctx))
+		return 0;
+
+	ret = bpf_sysctl_get_current_value(ctx, value, MAX_VALUE_STR_LEN);
+	if (ret < 0 || ret >= MAX_VALUE_STR_LEN)
+		return 0;
+
+	__pragma_loop_no_unroll
+	for (i = 0; i < ARRAY_SIZE(tcp_mem); ++i) {
+		ret = bpf_strtoul(value + off, MAX_ULONG_STR_LEN, 0,
+				  tcp_mem + i);
+		if (ret <= 0 || ret > MAX_ULONG_STR_LEN)
+			return 0;
+		off += ret & MAX_ULONG_STR_LEN;
+	}
+
+	return tcp_mem[0] < tcp_mem[1] && tcp_mem[1] < tcp_mem[2];
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_sysctl_prog.c b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c
new file mode 100644
index 000000000000..bbdd08764789
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_sysctl_prog.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+
+#include <stdint.h>
+#include <string.h>
+
+#include <linux/stddef.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_compiler.h"
+#include "bpf_misc.h"
+
+/* Max supported length of a string with unsigned long in base 10 (pow2 - 1). */
+#define MAX_ULONG_STR_LEN 0xF
+
+/* Max supported length of sysctl value string (pow2). */
+#define MAX_VALUE_STR_LEN 0x40
+
+const char tcp_mem_name[] = "net/ipv4/tcp_mem";
+static __always_inline int is_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned char i;
+	char name[sizeof(tcp_mem_name)];
+	int ret;
+
+	memset(name, 0, sizeof(name));
+	ret = bpf_sysctl_get_name(ctx, name, sizeof(name), 0);
+	if (ret < 0 || ret != sizeof(tcp_mem_name) - 1)
+		return 0;
+
+	__pragma_loop_unroll_full
+	for (i = 0; i < sizeof(tcp_mem_name); ++i)
+		if (name[i] != tcp_mem_name[i])
+			return 0;
+
+	return 1;
+}
+
+SEC("cgroup/sysctl")
+int sysctl_tcp_mem(struct bpf_sysctl *ctx)
+{
+	unsigned long tcp_mem[3] = {0, 0, 0};
+	char value[MAX_VALUE_STR_LEN];
+	unsigned char i, off = 0;
+	volatile int ret;
+
+	if (ctx->write)
+		return 0;
+
+	if (!is_tcp_mem(ctx))
+		return 0;
+
+	ret = bpf_sysctl_get_current_value(ctx, value, MAX_VALUE_STR_LEN);
+	if (ret < 0 || ret >= MAX_VALUE_STR_LEN)
+		return 0;
+
+	__pragma_loop_unroll_full
+	for (i = 0; i < ARRAY_SIZE(tcp_mem); ++i) {
+		ret = bpf_strtoul(value + off, MAX_ULONG_STR_LEN, 0,
+				  tcp_mem + i);
+		if (ret <= 0 || ret > MAX_ULONG_STR_LEN)
+			return 0;
+		off += ret & MAX_ULONG_STR_LEN;
+	}
+
+
+	return tcp_mem[0] < tcp_mem[1] && tcp_mem[1] < tcp_mem[2];
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_task_local_data.c b/tools/testing/selftests/bpf/progs/test_task_local_data.c
new file mode 100644
index 000000000000..fffafc013044
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_task_local_data.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+
+#include "task_local_data.bpf.h"
+
+struct tld_keys {
+	tld_key_t value0;
+	tld_key_t value1;
+	tld_key_t value2;
+	tld_key_t value_not_exist;
+};
+
+struct test_tld_struct {
+	__u64 a;
+	__u64 b;
+	__u64 c;
+	__u64 d;
+};
+
+int test_value0;
+int test_value1;
+struct test_tld_struct test_value2;
+
+SEC("syscall")
+int task_main(void *ctx)
+{
+	struct tld_object tld_obj;
+	struct test_tld_struct *struct_p;
+	struct task_struct *task;
+	int err, *int_p;
+
+	task = bpf_get_current_task_btf();
+	err = tld_object_init(task, &tld_obj);
+	if (err)
+		return 1;
+
+	int_p = tld_get_data(&tld_obj, value0, "value0", sizeof(int));
+	if (int_p)
+		test_value0 = *int_p;
+	else
+		return 2;
+
+	int_p = tld_get_data(&tld_obj, value1, "value1", sizeof(int));
+	if (int_p)
+		test_value1 = *int_p;
+	else
+		return 3;
+
+	struct_p = tld_get_data(&tld_obj, value2, "value2", sizeof(struct test_tld_struct));
+	if (struct_p)
+		test_value2 = *struct_p;
+	else
+		return 4;
+
+	int_p = tld_get_data(&tld_obj, value_not_exist, "value_not_exist", sizeof(int));
+	if (int_p)
+		return 5;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_task_pt_regs.c b/tools/testing/selftests/bpf/progs/test_task_pt_regs.c
new file mode 100644
index 000000000000..1926facba122
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_task_pt_regs.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#define PT_REGS_SIZE sizeof(struct pt_regs)
+
+/*
+ * The kernel struct pt_regs isn't exported in its entirety to userspace.
+ * Pass it as an array to task_pt_regs.c
+ */
+char current_regs[PT_REGS_SIZE] = {};
+char ctx_regs[PT_REGS_SIZE] = {};
+int uprobe_res = 0;
+
+SEC("uprobe")
+int handle_uprobe(struct pt_regs *ctx)
+{
+	struct task_struct *current;
+	struct pt_regs *regs;
+
+	current = bpf_get_current_task_btf();
+	regs = (struct pt_regs *) bpf_task_pt_regs(current);
+	if (bpf_probe_read_kernel(current_regs, PT_REGS_SIZE, regs))
+		return 0;
+	if (bpf_probe_read_kernel(ctx_regs, PT_REGS_SIZE, ctx))
+		return 0;
+
+	/* Prove that uprobe was run */
+	uprobe_res = 1;
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_task_under_cgroup.c b/tools/testing/selftests/bpf/progs/test_task_under_cgroup.c
new file mode 100644
index 000000000000..0b74b8bd22e8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_task_under_cgroup.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Bytedance */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+struct cgroup *bpf_cgroup_from_id(u64 cgid) __ksym;
+long bpf_task_under_cgroup(struct task_struct *task, struct cgroup *ancestor) __ksym;
+void bpf_cgroup_release(struct cgroup *p) __ksym;
+struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym;
+void bpf_task_release(struct task_struct *p) __ksym;
+
+const volatile int local_pid;
+const volatile __u64 cgid;
+int remote_pid;
+
+SEC("tp_btf/task_newtask")
+int BPF_PROG(tp_btf_run, struct task_struct *task, u64 clone_flags)
+{
+	struct cgroup *cgrp = NULL;
+	struct task_struct *acquired;
+
+	if (local_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	acquired = bpf_task_acquire(task);
+	if (!acquired)
+		return 0;
+
+	if (local_pid == acquired->tgid)
+		goto out;
+
+	cgrp = bpf_cgroup_from_id(cgid);
+	if (!cgrp)
+		goto out;
+
+	if (bpf_task_under_cgroup(acquired, cgrp))
+		remote_pid = acquired->tgid;
+
+out:
+	if (cgrp)
+		bpf_cgroup_release(cgrp);
+	bpf_task_release(acquired);
+
+	return 0;
+}
+
+SEC("lsm.s/bpf")
+int BPF_PROG(lsm_run, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	struct cgroup *cgrp = NULL;
+	struct task_struct *task;
+	int ret = 0;
+
+	task = bpf_get_current_task_btf();
+	if (local_pid != task->pid)
+		return 0;
+
+	if (cmd != BPF_LINK_CREATE)
+		return 0;
+
+	/* 1 is the root cgroup */
+	cgrp = bpf_cgroup_from_id(1);
+	if (!cgrp)
+		goto out;
+	if (!bpf_task_under_cgroup(task, cgrp))
+		ret = -1;
+	bpf_cgroup_release(cgrp);
+
+out:
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_bpf.c b/tools/testing/selftests/bpf/progs/test_tc_bpf.c
new file mode 100644
index 000000000000..ef7da419632a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_bpf.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+
+/* Dummy prog to test TC-BPF API */
+
+SEC("tc")
+int cls(struct __sk_buff *skb)
+{
+	return 0;
+}
+
+/* Prog to verify tc-bpf without cap_sys_admin and cap_perfmon */
+SEC("tcx/ingress")
+int pkt_ptr(struct __sk_buff *skb)
+{
+	struct iphdr *iph = (void *)(long)skb->data + sizeof(struct ethhdr);
+
+	if ((long)(iph + 1) > (long)skb->data_end)
+		return 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_tc_change_tail.c b/tools/testing/selftests/bpf/progs/test_tc_change_tail.c
new file mode 100644
index 000000000000..fcba8299f0bc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_change_tail.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE __PAGE_SIZE
+#endif
+#define BPF_SKB_MAX_LEN (PAGE_SIZE << 2)
+
+long change_tail_ret = 1;
+
+static __always_inline struct iphdr *parse_ip_header(struct __sk_buff *skb, int *ip_proto)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct ethhdr *eth = data;
+	struct iphdr *iph;
+
+	/* Verify Ethernet header */
+	if ((void *)(data + sizeof(*eth)) > data_end)
+		return NULL;
+
+	/* Skip Ethernet header to get to IP header */
+	iph = (void *)(data + sizeof(struct ethhdr));
+
+	/* Verify IP header */
+	if ((void *)(data + sizeof(struct ethhdr) + sizeof(*iph)) > data_end)
+		return NULL;
+
+	/* Basic IP header validation */
+	if (iph->version != 4)  /* Only support IPv4 */
+		return NULL;
+
+	if (iph->ihl < 5)  /* Minimum IP header length */
+		return NULL;
+
+	*ip_proto = iph->protocol;
+	return iph;
+}
+
+static __always_inline struct udphdr *parse_udp_header(struct __sk_buff *skb, struct iphdr *iph)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *hdr = (void *)iph;
+	struct udphdr *udp;
+
+	/* Calculate UDP header position */
+	udp = hdr + (iph->ihl * 4);
+	hdr = (void *)udp;
+
+	/* Verify UDP header bounds */
+	if ((void *)(hdr + sizeof(*udp)) > data_end)
+		return NULL;
+
+	return udp;
+}
+
+SEC("tc/ingress")
+int change_tail(struct __sk_buff *skb)
+{
+	int len = skb->len;
+	struct udphdr *udp;
+	struct iphdr *iph;
+	void *data_end;
+	char *payload;
+	int ip_proto;
+
+	bpf_skb_pull_data(skb, len);
+
+	data_end = (void *)(long)skb->data_end;
+	iph = parse_ip_header(skb, &ip_proto);
+	if (!iph)
+		return TCX_PASS;
+
+	if (ip_proto != IPPROTO_UDP)
+		return TCX_PASS;
+
+	udp = parse_udp_header(skb, iph);
+	if (!udp)
+		return TCX_PASS;
+
+	payload = (char *)udp + (sizeof(struct udphdr));
+	if (payload + 1 > (char *)data_end)
+		return TCX_PASS;
+
+	if (payload[0] == 'T') { /* Trim the packet */
+		change_tail_ret = bpf_skb_change_tail(skb, len - 1, 0);
+		if (!change_tail_ret)
+			bpf_skb_change_tail(skb, len, 0);
+		return TCX_PASS;
+	} else if (payload[0] == 'G') { /* Grow the packet */
+		change_tail_ret = bpf_skb_change_tail(skb, len + 1, 0);
+		if (!change_tail_ret)
+			bpf_skb_change_tail(skb, len, 0);
+		return TCX_PASS;
+	} else if (payload[0] == 'E') { /* Error */
+		change_tail_ret = bpf_skb_change_tail(skb, BPF_SKB_MAX_LEN, 0);
+		return TCX_PASS;
+	} else if (payload[0] == 'Z') { /* Zero */
+		change_tail_ret = bpf_skb_change_tail(skb, 0, 0);
+		return TCX_PASS;
+	}
+	return TCX_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_dtime.c b/tools/testing/selftests/bpf/progs/test_tc_dtime.c
new file mode 100644
index 000000000000..ca8e8734d901
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_dtime.c
@@ -0,0 +1,392 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2022 Meta
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/stddef.h>
+#include <linux/pkt_cls.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+/* veth_src --- veth_src_fwd --- veth_det_fwd --- veth_dst
+ *           |                                 |
+ *  ns_src   |              ns_fwd             |   ns_dst
+ *
+ * ns_src and ns_dst: ENDHOST namespace
+ *            ns_fwd: Fowarding namespace
+ */
+
+#define ctx_ptr(field)		(void *)(long)(field)
+
+#define ip4_src			__bpf_htonl(0xac100164) /* 172.16.1.100 */
+#define ip4_dst			__bpf_htonl(0xac100264) /* 172.16.2.100 */
+
+#define ip6_src			{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+				  0x00, 0x01, 0xde, 0xad, 0xbe, 0xef, 0xca, 0xfe }
+#define ip6_dst			{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+				  0x00, 0x02, 0xde, 0xad, 0xbe, 0xef, 0xca, 0xfe }
+
+#define v6_equal(a, b)		(a.s6_addr32[0] == b.s6_addr32[0] && \
+				 a.s6_addr32[1] == b.s6_addr32[1] && \
+				 a.s6_addr32[2] == b.s6_addr32[2] && \
+				 a.s6_addr32[3] == b.s6_addr32[3])
+
+volatile const __u32 IFINDEX_SRC;
+volatile const __u32 IFINDEX_DST;
+
+#define EGRESS_ENDHOST_MAGIC	0x0b9fbeef
+#define INGRESS_FWDNS_MAGIC	0x1b9fbeef
+#define EGRESS_FWDNS_MAGIC	0x2b9fbeef
+
+enum {
+	INGRESS_FWDNS_P100,
+	INGRESS_FWDNS_P101,
+	EGRESS_FWDNS_P100,
+	EGRESS_FWDNS_P101,
+	INGRESS_ENDHOST,
+	EGRESS_ENDHOST,
+	SET_DTIME,
+	__MAX_CNT,
+};
+
+enum {
+	TCP_IP6_CLEAR_DTIME,
+	TCP_IP4,
+	TCP_IP6,
+	UDP_IP4,
+	UDP_IP6,
+	TCP_IP4_RT_FWD,
+	TCP_IP6_RT_FWD,
+	UDP_IP4_RT_FWD,
+	UDP_IP6_RT_FWD,
+	UKN_TEST,
+	__NR_TESTS,
+};
+
+enum {
+	SRC_NS = 1,
+	DST_NS,
+};
+
+__u32 dtimes[__NR_TESTS][__MAX_CNT] = {};
+__u32 errs[__NR_TESTS][__MAX_CNT] = {};
+__u32 test = 0;
+
+static void inc_dtimes(__u32 idx)
+{
+	if (test < __NR_TESTS)
+		dtimes[test][idx]++;
+	else
+		dtimes[UKN_TEST][idx]++;
+}
+
+static void inc_errs(__u32 idx)
+{
+	if (test < __NR_TESTS)
+		errs[test][idx]++;
+	else
+		errs[UKN_TEST][idx]++;
+}
+
+static int skb_proto(int type)
+{
+	return type & 0xff;
+}
+
+static int skb_ns(int type)
+{
+	return (type >> 8) & 0xff;
+}
+
+static bool fwdns_clear_dtime(void)
+{
+	return test == TCP_IP6_CLEAR_DTIME;
+}
+
+static bool bpf_fwd(void)
+{
+	return test < TCP_IP4_RT_FWD;
+}
+
+static __u8 get_proto(void)
+{
+	switch (test) {
+	case UDP_IP4:
+	case UDP_IP6:
+	case UDP_IP4_RT_FWD:
+	case UDP_IP6_RT_FWD:
+		return IPPROTO_UDP;
+	default:
+		return IPPROTO_TCP;
+	}
+}
+
+/* -1: parse error: TC_ACT_SHOT
+ *  0: not testing traffic: TC_ACT_OK
+ * >0: first byte is the inet_proto, second byte has the netns
+ *     of the sender
+ */
+static int skb_get_type(struct __sk_buff *skb)
+{
+	__u16 dst_ns_port = __bpf_htons(50000 + test);
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	__u8 inet_proto = 0, ns = 0;
+	struct ipv6hdr *ip6h;
+	__u16 sport, dport;
+	struct iphdr *iph;
+	struct tcphdr *th;
+	struct udphdr *uh;
+	void *trans;
+
+	switch (skb->protocol) {
+	case __bpf_htons(ETH_P_IP):
+		iph = data + sizeof(struct ethhdr);
+		if (iph + 1 > data_end)
+			return -1;
+		if (iph->saddr == ip4_src)
+			ns = SRC_NS;
+		else if (iph->saddr == ip4_dst)
+			ns = DST_NS;
+		inet_proto = iph->protocol;
+		trans = iph + 1;
+		break;
+	case __bpf_htons(ETH_P_IPV6):
+		ip6h = data + sizeof(struct ethhdr);
+		if (ip6h + 1 > data_end)
+			return -1;
+		if (v6_equal(ip6h->saddr, (struct in6_addr){{ip6_src}}))
+			ns = SRC_NS;
+		else if (v6_equal(ip6h->saddr, (struct in6_addr){{ip6_dst}}))
+			ns = DST_NS;
+		inet_proto = ip6h->nexthdr;
+		trans = ip6h + 1;
+		break;
+	default:
+		return 0;
+	}
+
+	/* skb is not from src_ns or dst_ns.
+	 * skb is not the testing IPPROTO.
+	 */
+	if (!ns || inet_proto != get_proto())
+		return 0;
+
+	switch (inet_proto) {
+	case IPPROTO_TCP:
+		th = trans;
+		if (th + 1 > data_end)
+			return -1;
+		sport = th->source;
+		dport = th->dest;
+		break;
+	case IPPROTO_UDP:
+		uh = trans;
+		if (uh + 1 > data_end)
+			return -1;
+		sport = uh->source;
+		dport = uh->dest;
+		break;
+	default:
+		return 0;
+	}
+
+	/* The skb is the testing traffic */
+	if ((ns == SRC_NS && dport == dst_ns_port) ||
+	    (ns == DST_NS && sport == dst_ns_port))
+		return (ns << 8 | inet_proto);
+
+	return 0;
+}
+
+/* format: direction@iface@netns
+ * egress@veth_(src|dst)@ns_(src|dst)
+ */
+SEC("tc")
+int egress_host(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1)
+		return TC_ACT_SHOT;
+	if (!skb_type)
+		return TC_ACT_OK;
+
+	if (skb_proto(skb_type) == IPPROTO_TCP) {
+		if (skb->tstamp_type == BPF_SKB_CLOCK_MONOTONIC &&
+		    skb->tstamp)
+			inc_dtimes(EGRESS_ENDHOST);
+		else
+			inc_errs(EGRESS_ENDHOST);
+	} else if (skb_proto(skb_type) == IPPROTO_UDP) {
+		if (skb->tstamp_type == BPF_SKB_CLOCK_TAI &&
+		    skb->tstamp)
+			inc_dtimes(EGRESS_ENDHOST);
+		else
+			inc_errs(EGRESS_ENDHOST);
+	} else {
+		if (skb->tstamp_type == BPF_SKB_CLOCK_REALTIME &&
+		    skb->tstamp)
+			inc_errs(EGRESS_ENDHOST);
+	}
+
+	skb->tstamp = EGRESS_ENDHOST_MAGIC;
+
+	return TC_ACT_OK;
+}
+
+/* ingress@veth_(src|dst)@ns_(src|dst) */
+SEC("tc")
+int ingress_host(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1)
+		return TC_ACT_SHOT;
+	if (!skb_type)
+		return TC_ACT_OK;
+
+	if (skb->tstamp_type == BPF_SKB_CLOCK_MONOTONIC &&
+	    skb->tstamp == EGRESS_FWDNS_MAGIC)
+		inc_dtimes(INGRESS_ENDHOST);
+	else
+		inc_errs(INGRESS_ENDHOST);
+
+	return TC_ACT_OK;
+}
+
+/* ingress@veth_(src|dst)_fwd@ns_fwd priority 100 */
+SEC("tc")
+int ingress_fwdns_prio100(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1)
+		return TC_ACT_SHOT;
+	if (!skb_type)
+		return TC_ACT_OK;
+
+	/* delivery_time is only available to the ingress
+	 * if the tc-bpf checks the skb->tstamp_type.
+	 */
+	if (skb->tstamp == EGRESS_ENDHOST_MAGIC)
+		inc_errs(INGRESS_FWDNS_P100);
+
+	if (fwdns_clear_dtime())
+		skb->tstamp = 0;
+
+	return TC_ACT_UNSPEC;
+}
+
+/* egress@veth_(src|dst)_fwd@ns_fwd priority 100 */
+SEC("tc")
+int egress_fwdns_prio100(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1)
+		return TC_ACT_SHOT;
+	if (!skb_type)
+		return TC_ACT_OK;
+
+	/* delivery_time is always available to egress even
+	 * the tc-bpf did not use the tstamp_type.
+	 */
+	if (skb->tstamp == INGRESS_FWDNS_MAGIC)
+		inc_dtimes(EGRESS_FWDNS_P100);
+	else
+		inc_errs(EGRESS_FWDNS_P100);
+
+	if (fwdns_clear_dtime())
+		skb->tstamp = 0;
+
+	return TC_ACT_UNSPEC;
+}
+
+/* ingress@veth_(src|dst)_fwd@ns_fwd priority 101 */
+SEC("tc")
+int ingress_fwdns_prio101(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1 || !skb_type)
+		/* Should have handled in prio100 */
+		return TC_ACT_SHOT;
+
+	if (skb->tstamp_type) {
+		if (fwdns_clear_dtime() ||
+		    (skb->tstamp_type != BPF_SKB_CLOCK_MONOTONIC &&
+		    skb->tstamp_type != BPF_SKB_CLOCK_TAI) ||
+		    skb->tstamp != EGRESS_ENDHOST_MAGIC)
+			inc_errs(INGRESS_FWDNS_P101);
+		else
+			inc_dtimes(INGRESS_FWDNS_P101);
+	} else {
+		if (!fwdns_clear_dtime())
+			inc_errs(INGRESS_FWDNS_P101);
+	}
+
+	if (skb->tstamp_type == BPF_SKB_CLOCK_MONOTONIC) {
+		skb->tstamp = INGRESS_FWDNS_MAGIC;
+	} else {
+		if (bpf_skb_set_tstamp(skb, INGRESS_FWDNS_MAGIC,
+				       BPF_SKB_CLOCK_MONOTONIC))
+			inc_errs(SET_DTIME);
+	}
+
+	if (skb_ns(skb_type) == SRC_NS)
+		return bpf_fwd() ?
+			bpf_redirect_neigh(IFINDEX_DST, NULL, 0, 0) : TC_ACT_OK;
+	else
+		return bpf_fwd() ?
+			bpf_redirect_neigh(IFINDEX_SRC, NULL, 0, 0) : TC_ACT_OK;
+}
+
+/* egress@veth_(src|dst)_fwd@ns_fwd priority 101 */
+SEC("tc")
+int egress_fwdns_prio101(struct __sk_buff *skb)
+{
+	int skb_type;
+
+	skb_type = skb_get_type(skb);
+	if (skb_type == -1 || !skb_type)
+		/* Should have handled in prio100 */
+		return TC_ACT_SHOT;
+
+	if (skb->tstamp_type) {
+		if (fwdns_clear_dtime() ||
+		    skb->tstamp_type != BPF_SKB_CLOCK_MONOTONIC ||
+		    skb->tstamp != INGRESS_FWDNS_MAGIC)
+			inc_errs(EGRESS_FWDNS_P101);
+		else
+			inc_dtimes(EGRESS_FWDNS_P101);
+	} else {
+		if (!fwdns_clear_dtime())
+			inc_errs(EGRESS_FWDNS_P101);
+	}
+
+	if (skb->tstamp_type == BPF_SKB_CLOCK_MONOTONIC) {
+		skb->tstamp = EGRESS_FWDNS_MAGIC;
+	} else {
+		if (bpf_skb_set_tstamp(skb, EGRESS_FWDNS_MAGIC,
+				       BPF_SKB_CLOCK_MONOTONIC))
+			inc_errs(SET_DTIME);
+	}
+
+	return TC_ACT_OK;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_edt.c b/tools/testing/selftests/bpf/progs/test_tc_edt.c
new file mode 100644
index 000000000000..4f6f03122d61
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_edt.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdint.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/stddef.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/pkt_cls.h>
+#include <linux/tcp.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+/* the maximum delay we are willing to add (drop packets beyond that) */
+#define TIME_HORIZON_NS (2000 * 1000 * 1000)
+#define NS_PER_SEC 1000000000
+#define ECN_HORIZON_NS 5000000
+
+/* flow_key => last_tstamp timestamp used */
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, uint32_t);
+	__type(value, uint64_t);
+	__uint(max_entries, 1);
+} flow_map SEC(".maps");
+
+__uint64_t target_rate;
+
+static inline int throttle_flow(struct __sk_buff *skb)
+{
+	int key = 0;
+	uint64_t *last_tstamp = bpf_map_lookup_elem(&flow_map, &key);
+	uint64_t delay_ns = ((uint64_t)skb->len) * NS_PER_SEC / target_rate;
+	uint64_t now = bpf_ktime_get_ns();
+	uint64_t tstamp, next_tstamp = 0;
+
+	if (last_tstamp)
+		next_tstamp = *last_tstamp + delay_ns;
+
+	tstamp = skb->tstamp;
+	if (tstamp < now)
+		tstamp = now;
+
+	/* should we throttle? */
+	if (next_tstamp <= tstamp) {
+		if (bpf_map_update_elem(&flow_map, &key, &tstamp, BPF_ANY))
+			return TC_ACT_SHOT;
+		return TC_ACT_OK;
+	}
+
+	/* do not queue past the time horizon */
+	if (next_tstamp - now >= TIME_HORIZON_NS)
+		return TC_ACT_SHOT;
+
+	/* set ecn bit, if needed */
+	if (next_tstamp - now >= ECN_HORIZON_NS)
+		bpf_skb_ecn_set_ce(skb);
+
+	if (bpf_map_update_elem(&flow_map, &key, &next_tstamp, BPF_EXIST))
+		return TC_ACT_SHOT;
+	skb->tstamp = next_tstamp;
+
+	return TC_ACT_OK;
+}
+
+static inline int handle_tcp(struct __sk_buff *skb, struct tcphdr *tcp)
+{
+	void *data_end = (void *)(long)skb->data_end;
+
+	/* drop malformed packets */
+	if ((void *)(tcp + 1) > data_end)
+		return TC_ACT_SHOT;
+
+	if (tcp->source == bpf_htons(9000))
+		return throttle_flow(skb);
+
+	return TC_ACT_OK;
+}
+
+static inline int handle_ipv4(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph;
+	uint32_t ihl;
+
+	/* drop malformed packets */
+	if (data + sizeof(struct ethhdr) > data_end)
+		return TC_ACT_SHOT;
+	iph = (struct iphdr *)(data + sizeof(struct ethhdr));
+	if ((void *)(iph + 1) > data_end)
+		return TC_ACT_SHOT;
+	ihl = iph->ihl * 4;
+	if (((void *)iph) + ihl > data_end)
+		return TC_ACT_SHOT;
+
+	if (iph->protocol == IPPROTO_TCP)
+		return handle_tcp(skb, (struct tcphdr *)(((void *)iph) + ihl));
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int tc_prog(struct __sk_buff *skb)
+{
+	if (skb->protocol == bpf_htons(ETH_P_IP))
+		return handle_ipv4(skb);
+
+	return TC_ACT_OK;
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_link.c b/tools/testing/selftests/bpf/progs/test_tc_link.c
new file mode 100644
index 000000000000..630f12e51b07
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_link.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Isovalent */
+#include <stdbool.h>
+
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/stddef.h>
+#include <linux/if_packet.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char LICENSE[] SEC("license") = "GPL";
+
+bool seen_tc1;
+bool seen_tc2;
+bool seen_tc3;
+bool seen_tc4;
+bool seen_tc5;
+bool seen_tc6;
+bool seen_tc7;
+bool seen_tc8;
+
+bool set_type;
+
+bool seen_eth;
+bool seen_host;
+bool seen_mcast;
+
+int mark, prio;
+unsigned short headroom, tailroom;
+
+SEC("tc/ingress")
+int tc1(struct __sk_buff *skb)
+{
+	struct ethhdr eth = {};
+
+	if (skb->protocol != __bpf_constant_htons(ETH_P_IP))
+		goto out;
+	if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)))
+		goto out;
+	seen_eth = eth.h_proto == bpf_htons(ETH_P_IP);
+	seen_host = skb->pkt_type == PACKET_HOST;
+	if (seen_host && set_type) {
+		eth.h_dest[0] = 4;
+		if (bpf_skb_store_bytes(skb, 0, &eth, sizeof(eth), 0))
+			goto fail;
+		bpf_skb_change_type(skb, PACKET_MULTICAST);
+	}
+out:
+	seen_tc1 = true;
+fail:
+	return TCX_NEXT;
+}
+
+SEC("tc/egress")
+int tc2(struct __sk_buff *skb)
+{
+	seen_tc2 = true;
+	return TCX_NEXT;
+}
+
+SEC("tc/egress")
+int tc3(struct __sk_buff *skb)
+{
+	seen_tc3 = true;
+	return TCX_NEXT;
+}
+
+SEC("tc/egress")
+int tc4(struct __sk_buff *skb)
+{
+	seen_tc4 = true;
+	return TCX_NEXT;
+}
+
+SEC("tc/egress")
+int tc5(struct __sk_buff *skb)
+{
+	seen_tc5 = true;
+	return TCX_PASS;
+}
+
+SEC("tc/egress")
+int tc6(struct __sk_buff *skb)
+{
+	seen_tc6 = true;
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+int tc7(struct __sk_buff *skb)
+{
+	struct ethhdr eth = {};
+
+	if (skb->protocol != __bpf_constant_htons(ETH_P_IP))
+		goto out;
+	if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)))
+		goto out;
+	if (eth.h_dest[0] == 4 && set_type) {
+		seen_mcast = skb->pkt_type == PACKET_MULTICAST;
+		bpf_skb_change_type(skb, PACKET_HOST);
+	}
+out:
+	seen_tc7 = true;
+	return TCX_PASS;
+}
+
+struct sk_buff {
+	struct net_device *dev;
+};
+
+struct net_device {
+	unsigned short needed_headroom;
+	unsigned short needed_tailroom;
+};
+
+SEC("tc/egress")
+int tc8(struct __sk_buff *skb)
+{
+	struct net_device *dev = BPF_CORE_READ((struct sk_buff *)skb, dev);
+
+	seen_tc8 = true;
+	mark = skb->mark;
+	prio = skb->priority;
+	headroom = BPF_CORE_READ(dev, needed_headroom);
+	tailroom = BPF_CORE_READ(dev, needed_tailroom);
+	return TCX_PASS;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_tc_neigh.c b/tools/testing/selftests/bpf/progs/test_tc_neigh.c
new file mode 100644
index 000000000000..de15155f2609
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_neigh.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <linux/bpf.h>
+#include <linux/stddef.h>
+#include <linux/pkt_cls.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#ifndef ctx_ptr
+# define ctx_ptr(field)		(void *)(long)(field)
+#endif
+
+#define ip4_src			0xac100164 /* 172.16.1.100 */
+#define ip4_dst			0xac100264 /* 172.16.2.100 */
+
+#define ip6_src			{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+				  0x00, 0x01, 0xde, 0xad, 0xbe, 0xef, 0xca, 0xfe }
+#define ip6_dst			{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+				  0x00, 0x02, 0xde, 0xad, 0xbe, 0xef, 0xca, 0xfe }
+
+#ifndef v6_equal
+# define v6_equal(a, b)		(a.s6_addr32[0] == b.s6_addr32[0] && \
+				 a.s6_addr32[1] == b.s6_addr32[1] && \
+				 a.s6_addr32[2] == b.s6_addr32[2] && \
+				 a.s6_addr32[3] == b.s6_addr32[3])
+#endif
+
+volatile const __u32 IFINDEX_SRC;
+volatile const __u32 IFINDEX_DST;
+
+static __always_inline bool is_remote_ep_v4(struct __sk_buff *skb,
+					    __be32 addr)
+{
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	struct iphdr *ip4h;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return false;
+
+	ip4h = (struct iphdr *)(data + sizeof(struct ethhdr));
+	if ((void *)(ip4h + 1) > data_end)
+		return false;
+
+	return ip4h->daddr == addr;
+}
+
+static __always_inline bool is_remote_ep_v6(struct __sk_buff *skb,
+					    struct in6_addr addr)
+{
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	struct ipv6hdr *ip6h;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return false;
+
+	ip6h = (struct ipv6hdr *)(data + sizeof(struct ethhdr));
+	if ((void *)(ip6h + 1) > data_end)
+		return false;
+
+	return v6_equal(ip6h->daddr, addr);
+}
+
+SEC("tc")
+int tc_chk(struct __sk_buff *skb)
+{
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	__u32 *raw = data;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return TC_ACT_SHOT;
+
+	return !raw[0] && !raw[1] && !raw[2] ? TC_ACT_SHOT : TC_ACT_OK;
+}
+
+SEC("tc")
+int tc_dst(struct __sk_buff *skb)
+{
+	__u8 zero[ETH_ALEN * 2];
+	bool redirect = false;
+
+	switch (skb->protocol) {
+	case __bpf_constant_htons(ETH_P_IP):
+		redirect = is_remote_ep_v4(skb, __bpf_constant_htonl(ip4_src));
+		break;
+	case __bpf_constant_htons(ETH_P_IPV6):
+		redirect = is_remote_ep_v6(skb, (struct in6_addr){{ip6_src}});
+		break;
+	}
+
+	if (!redirect)
+		return TC_ACT_OK;
+
+	__builtin_memset(&zero, 0, sizeof(zero));
+	if (bpf_skb_store_bytes(skb, 0, &zero, sizeof(zero), 0) < 0)
+		return TC_ACT_SHOT;
+
+	return bpf_redirect_neigh(IFINDEX_SRC, NULL, 0, 0);
+}
+
+SEC("tc")
+int tc_src(struct __sk_buff *skb)
+{
+	__u8 zero[ETH_ALEN * 2];
+	bool redirect = false;
+
+	switch (skb->protocol) {
+	case __bpf_constant_htons(ETH_P_IP):
+		redirect = is_remote_ep_v4(skb, __bpf_constant_htonl(ip4_dst));
+		break;
+	case __bpf_constant_htons(ETH_P_IPV6):
+		redirect = is_remote_ep_v6(skb, (struct in6_addr){{ip6_dst}});
+		break;
+	}
+
+	if (!redirect)
+		return TC_ACT_OK;
+
+	__builtin_memset(&zero, 0, sizeof(zero));
+	if (bpf_skb_store_bytes(skb, 0, &zero, sizeof(zero), 0) < 0)
+		return TC_ACT_SHOT;
+
+	return bpf_redirect_neigh(IFINDEX_DST, NULL, 0, 0);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_neigh_fib.c b/tools/testing/selftests/bpf/progs/test_tc_neigh_fib.c
new file mode 100644
index 000000000000..ec4cce19362d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_neigh_fib.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+
+#include <linux/bpf.h>
+#include <linux/stddef.h>
+#include <linux/pkt_cls.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#ifndef ctx_ptr
+# define ctx_ptr(field)		(void *)(long)(field)
+#endif
+
+#define AF_INET 2
+#define AF_INET6 10
+
+static __always_inline int fill_fib_params_v4(struct __sk_buff *skb,
+					      struct bpf_fib_lookup *fib_params)
+{
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	struct iphdr *ip4h;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return -1;
+
+	ip4h = (struct iphdr *)(data + sizeof(struct ethhdr));
+	if ((void *)(ip4h + 1) > data_end)
+		return -1;
+
+	fib_params->family = AF_INET;
+	fib_params->tos = ip4h->tos;
+	fib_params->l4_protocol = ip4h->protocol;
+	fib_params->sport = 0;
+	fib_params->dport = 0;
+	fib_params->tot_len = bpf_ntohs(ip4h->tot_len);
+	fib_params->ipv4_src = ip4h->saddr;
+	fib_params->ipv4_dst = ip4h->daddr;
+
+	return 0;
+}
+
+static __always_inline int fill_fib_params_v6(struct __sk_buff *skb,
+					      struct bpf_fib_lookup *fib_params)
+{
+	struct in6_addr *src = (struct in6_addr *)fib_params->ipv6_src;
+	struct in6_addr *dst = (struct in6_addr *)fib_params->ipv6_dst;
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	struct ipv6hdr *ip6h;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return -1;
+
+	ip6h = (struct ipv6hdr *)(data + sizeof(struct ethhdr));
+	if ((void *)(ip6h + 1) > data_end)
+		return -1;
+
+	fib_params->family = AF_INET6;
+	fib_params->flowinfo = 0;
+	fib_params->l4_protocol = ip6h->nexthdr;
+	fib_params->sport = 0;
+	fib_params->dport = 0;
+	fib_params->tot_len = bpf_ntohs(ip6h->payload_len);
+	*src = ip6h->saddr;
+	*dst = ip6h->daddr;
+
+	return 0;
+}
+
+SEC("tc")
+int tc_chk(struct __sk_buff *skb)
+{
+	void *data_end = ctx_ptr(skb->data_end);
+	void *data = ctx_ptr(skb->data);
+	__u32 *raw = data;
+
+	if (data + sizeof(struct ethhdr) > data_end)
+		return TC_ACT_SHOT;
+
+	return !raw[0] && !raw[1] && !raw[2] ? TC_ACT_SHOT : TC_ACT_OK;
+}
+
+static __always_inline int tc_redir(struct __sk_buff *skb)
+{
+	struct bpf_fib_lookup fib_params = { .ifindex = skb->ingress_ifindex };
+	__u8 zero[ETH_ALEN * 2];
+	int ret = -1;
+
+	switch (skb->protocol) {
+	case __bpf_constant_htons(ETH_P_IP):
+		ret = fill_fib_params_v4(skb, &fib_params);
+		break;
+	case __bpf_constant_htons(ETH_P_IPV6):
+		ret = fill_fib_params_v6(skb, &fib_params);
+		break;
+	}
+
+	if (ret)
+		return TC_ACT_OK;
+
+	ret = bpf_fib_lookup(skb, &fib_params, sizeof(fib_params), 0);
+	if (ret == BPF_FIB_LKUP_RET_NOT_FWDED || ret < 0)
+		return TC_ACT_OK;
+
+	__builtin_memset(&zero, 0, sizeof(zero));
+	if (bpf_skb_store_bytes(skb, 0, &zero, sizeof(zero), 0) < 0)
+		return TC_ACT_SHOT;
+
+	if (ret == BPF_FIB_LKUP_RET_NO_NEIGH) {
+		struct bpf_redir_neigh nh_params = {};
+
+		nh_params.nh_family = fib_params.family;
+		__builtin_memcpy(&nh_params.ipv6_nh, &fib_params.ipv6_dst,
+				 sizeof(nh_params.ipv6_nh));
+
+		return bpf_redirect_neigh(fib_params.ifindex, &nh_params,
+					  sizeof(nh_params), 0);
+
+	} else if (ret == BPF_FIB_LKUP_RET_SUCCESS) {
+		void *data_end = ctx_ptr(skb->data_end);
+		struct ethhdr *eth = ctx_ptr(skb->data);
+
+		if (eth + 1 > data_end)
+			return TC_ACT_SHOT;
+
+		__builtin_memcpy(eth->h_dest, fib_params.dmac, ETH_ALEN);
+		__builtin_memcpy(eth->h_source, fib_params.smac, ETH_ALEN);
+
+		return bpf_redirect(fib_params.ifindex, 0);
+	}
+
+	return TC_ACT_SHOT;
+}
+
+/* these are identical, but keep them separate for compatibility with the
+ * section names expected by test_tc_redirect.sh
+ */
+SEC("tc")
+int tc_dst(struct __sk_buff *skb)
+{
+	return tc_redir(skb);
+}
+
+SEC("tc")
+int tc_src(struct __sk_buff *skb)
+{
+	return tc_redir(skb);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_peer.c b/tools/testing/selftests/bpf/progs/test_tc_peer.c
new file mode 100644
index 000000000000..365eacb5dc34
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_peer.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <linux/bpf.h>
+#include <linux/stddef.h>
+#include <linux/pkt_cls.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+
+#include <bpf/bpf_helpers.h>
+
+volatile const __u32 IFINDEX_SRC;
+volatile const __u32 IFINDEX_DST;
+
+static const __u8 src_mac[] = {0x00, 0x11, 0x22, 0x33, 0x44, 0x55};
+static const __u8 dst_mac[] = {0x00, 0x22, 0x33, 0x44, 0x55, 0x66};
+
+SEC("tc")
+int tc_chk(struct __sk_buff *skb)
+{
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int tc_dst(struct __sk_buff *skb)
+{
+	return bpf_redirect_peer(IFINDEX_SRC, 0);
+}
+
+SEC("tc")
+int tc_src(struct __sk_buff *skb)
+{
+	return bpf_redirect_peer(IFINDEX_DST, 0);
+}
+
+SEC("tc")
+int tc_dst_l3(struct __sk_buff *skb)
+{
+	return bpf_redirect(IFINDEX_SRC, 0);
+}
+
+SEC("tc")
+int tc_src_l3(struct __sk_buff *skb)
+{
+	__u16 proto = skb->protocol;
+
+	if (bpf_skb_change_head(skb, ETH_HLEN, 0) != 0)
+		return TC_ACT_SHOT;
+
+	if (bpf_skb_store_bytes(skb, 0, &src_mac, ETH_ALEN, 0) != 0)
+		return TC_ACT_SHOT;
+
+	if (bpf_skb_store_bytes(skb, ETH_ALEN, &dst_mac, ETH_ALEN, 0) != 0)
+		return TC_ACT_SHOT;
+
+	if (bpf_skb_store_bytes(skb, ETH_ALEN + ETH_ALEN, &proto, sizeof(__u16), 0) != 0)
+		return TC_ACT_SHOT;
+
+	return bpf_redirect_peer(IFINDEX_DST, 0);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tc_tunnel.c b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
new file mode 100644
index 000000000000..7330c61b5730
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tc_tunnel.c
@@ -0,0 +1,697 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* In-place tunneling */
+
+#include <vmlinux.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_tracing_net.h"
+#include "bpf_compiler.h"
+
+#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+
+static const int cfg_port = 8000;
+
+static const int cfg_udp_src = 20000;
+
+#define ETH_P_MPLS_UC	0x8847
+#define ETH_P_TEB	0x6558
+
+#define MPLS_LS_S_MASK	0x00000100
+#define BPF_F_ADJ_ROOM_ENCAP_L2(len)			\
+	(((__u64)len & BPF_ADJ_ROOM_ENCAP_L2_MASK)	\
+	 << BPF_ADJ_ROOM_ENCAP_L2_SHIFT)
+
+#define	L2_PAD_SZ	(sizeof(struct vxlanhdr) + ETH_HLEN)
+
+#define	UDP_PORT		5555
+#define	MPLS_OVER_UDP_PORT	6635
+#define	ETH_OVER_UDP_PORT	7777
+#define	VXLAN_UDP_PORT		8472
+
+#define	EXTPROTO_VXLAN	0x1
+
+#define	VXLAN_FLAGS     bpf_htonl(1<<27)
+#define	VNI_ID		1
+#define	VXLAN_VNI	bpf_htonl(VNI_ID << 8)
+
+#ifndef NEXTHDR_DEST
+#define NEXTHDR_DEST	60
+#endif
+
+/* MPLS label 1000 with S bit (last label) set and ttl of 255. */
+static const __u32 mpls_label = __bpf_constant_htonl(1000 << 12 |
+						     MPLS_LS_S_MASK | 0xff);
+struct gre_hdr {
+	__be16 flags;
+	__be16 protocol;
+} __attribute__((packed));
+
+union l4hdr {
+	struct udphdr udp;
+	struct gre_hdr gre;
+};
+
+struct v4hdr {
+	struct iphdr ip;
+	union l4hdr l4hdr;
+	__u8 pad[L2_PAD_SZ];		/* space for L2 header / vxlan header ... */
+} __attribute__((packed));
+
+struct v6hdr {
+	struct ipv6hdr ip;
+	union l4hdr l4hdr;
+	__u8 pad[L2_PAD_SZ];		/* space for L2 header / vxlan header ... */
+} __attribute__((packed));
+
+static __always_inline void set_ipv4_csum(struct iphdr *iph)
+{
+	__u16 *iph16 = (__u16 *)iph;
+	__u32 csum;
+	int i;
+
+	iph->check = 0;
+
+	__pragma_loop_unroll_full
+	for (i = 0, csum = 0; i < sizeof(*iph) >> 1; i++)
+		csum += *iph16++;
+
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+}
+
+static __always_inline int __encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
+					__u16 l2_proto, __u16 ext_proto)
+{
+	struct iphdr iph_inner = {0};
+	__u16 udp_dst = UDP_PORT;
+	struct v4hdr h_outer;
+	struct tcphdr tcph;
+	int olen, l2_len;
+	__u8 *l2_hdr = NULL;
+	int tcp_off;
+	__u64 flags;
+
+	/* Most tests encapsulate a packet into a tunnel with the same
+	 * network protocol, and derive the outer header fields from
+	 * the inner header.
+	 *
+	 * The 6in4 case tests different inner and outer protocols. As
+	 * the inner is ipv6, but the outer expects an ipv4 header as
+	 * input, manually build a struct iphdr based on the ipv6hdr.
+	 */
+	if (encap_proto == IPPROTO_IPV6) {
+		const __u32 saddr = (192 << 24) | (168 << 16) | (1 << 8) | 1;
+		const __u32 daddr = (192 << 24) | (168 << 16) | (1 << 8) | 2;
+		struct ipv6hdr iph6_inner;
+
+		/* Read the IPv6 header */
+		if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph6_inner,
+				       sizeof(iph6_inner)) < 0)
+			return TC_ACT_OK;
+
+		/* Derive the IPv4 header fields from the IPv6 header */
+		iph_inner.version = 4;
+		iph_inner.ihl = 5;
+		iph_inner.tot_len = bpf_htons(sizeof(iph6_inner) +
+				    bpf_ntohs(iph6_inner.payload_len));
+		iph_inner.ttl = iph6_inner.hop_limit - 1;
+		iph_inner.protocol = iph6_inner.nexthdr;
+		iph_inner.saddr = __bpf_constant_htonl(saddr);
+		iph_inner.daddr = __bpf_constant_htonl(daddr);
+
+		tcp_off = sizeof(iph6_inner);
+	} else {
+		if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_inner,
+				       sizeof(iph_inner)) < 0)
+			return TC_ACT_OK;
+
+		tcp_off = sizeof(iph_inner);
+	}
+
+	/* filter only packets we want */
+	if (iph_inner.ihl != 5 || iph_inner.protocol != IPPROTO_TCP)
+		return TC_ACT_OK;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN + tcp_off,
+			       &tcph, sizeof(tcph)) < 0)
+		return TC_ACT_OK;
+
+	if (tcph.dest != __bpf_constant_htons(cfg_port))
+		return TC_ACT_OK;
+
+	olen = sizeof(h_outer.ip);
+	l2_len = 0;
+
+	flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV4;
+
+	switch (l2_proto) {
+	case ETH_P_MPLS_UC:
+		l2_len = sizeof(mpls_label);
+		udp_dst = MPLS_OVER_UDP_PORT;
+		break;
+	case ETH_P_TEB:
+		l2_len = ETH_HLEN;
+		if (ext_proto & EXTPROTO_VXLAN) {
+			udp_dst = VXLAN_UDP_PORT;
+			l2_len += sizeof(struct vxlanhdr);
+		} else
+			udp_dst = ETH_OVER_UDP_PORT;
+		break;
+	}
+	flags |= BPF_F_ADJ_ROOM_ENCAP_L2(l2_len);
+
+	switch (encap_proto) {
+	case IPPROTO_GRE:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
+		olen += sizeof(h_outer.l4hdr.gre);
+		h_outer.l4hdr.gre.protocol = bpf_htons(l2_proto);
+		h_outer.l4hdr.gre.flags = 0;
+		break;
+	case IPPROTO_UDP:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L4_UDP;
+		olen += sizeof(h_outer.l4hdr.udp);
+		h_outer.l4hdr.udp.source = __bpf_constant_htons(cfg_udp_src);
+		h_outer.l4hdr.udp.dest = bpf_htons(udp_dst);
+		h_outer.l4hdr.udp.check = 0;
+		h_outer.l4hdr.udp.len = bpf_htons(bpf_ntohs(iph_inner.tot_len) +
+						  sizeof(h_outer.l4hdr.udp) +
+						  l2_len);
+		break;
+	case IPPROTO_IPIP:
+	case IPPROTO_IPV6:
+		break;
+	default:
+		return TC_ACT_OK;
+	}
+
+	/* add L2 encap (if specified) */
+	l2_hdr = (__u8 *)&h_outer + olen;
+	switch (l2_proto) {
+	case ETH_P_MPLS_UC:
+		*(__u32 *)l2_hdr = mpls_label;
+		break;
+	case ETH_P_TEB:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L2_ETH;
+
+		if (ext_proto & EXTPROTO_VXLAN) {
+			struct vxlanhdr *vxlan_hdr = (struct vxlanhdr *)l2_hdr;
+
+			vxlan_hdr->vx_flags = VXLAN_FLAGS;
+			vxlan_hdr->vx_vni = VXLAN_VNI;
+
+			l2_hdr += sizeof(struct vxlanhdr);
+		}
+
+		if (bpf_skb_load_bytes(skb, 0, l2_hdr, ETH_HLEN))
+			return TC_ACT_SHOT;
+
+		break;
+	}
+	olen += l2_len;
+
+	/* add room between mac and network header */
+	if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
+		return TC_ACT_SHOT;
+
+	/* prepare new outer network header */
+	h_outer.ip = iph_inner;
+	h_outer.ip.tot_len = bpf_htons(olen +
+				       bpf_ntohs(h_outer.ip.tot_len));
+	h_outer.ip.protocol = encap_proto;
+
+	set_ipv4_csum((void *)&h_outer.ip);
+
+	/* store new outer network header */
+	if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
+				BPF_F_INVALIDATE_HASH) < 0)
+		return TC_ACT_SHOT;
+
+	/* if changing outer proto type, update eth->h_proto */
+	if (encap_proto == IPPROTO_IPV6) {
+		struct ethhdr eth;
+
+		if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)) < 0)
+			return TC_ACT_SHOT;
+		eth.h_proto = bpf_htons(ETH_P_IP);
+		if (bpf_skb_store_bytes(skb, 0, &eth, sizeof(eth), 0) < 0)
+			return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+static __always_inline int encap_ipv4(struct __sk_buff *skb, __u8 encap_proto,
+				      __u16 l2_proto)
+{
+	return __encap_ipv4(skb, encap_proto, l2_proto, 0);
+}
+
+static __always_inline int __encap_ipv6(struct __sk_buff *skb, __u8 encap_proto,
+					__u16 l2_proto, __u16 ext_proto)
+{
+	__u16 udp_dst = UDP_PORT;
+	struct ipv6hdr iph_inner;
+	struct v6hdr h_outer;
+	struct tcphdr tcph;
+	int olen, l2_len;
+	__u8 *l2_hdr = NULL;
+	__u16 tot_len;
+	__u64 flags;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_inner,
+			       sizeof(iph_inner)) < 0)
+		return TC_ACT_OK;
+
+	/* filter only packets we want */
+	if (bpf_skb_load_bytes(skb, ETH_HLEN + sizeof(iph_inner),
+			       &tcph, sizeof(tcph)) < 0)
+		return TC_ACT_OK;
+
+	if (tcph.dest != __bpf_constant_htons(cfg_port))
+		return TC_ACT_OK;
+
+	olen = sizeof(h_outer.ip);
+	l2_len = 0;
+
+	flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV6;
+
+	switch (l2_proto) {
+	case ETH_P_MPLS_UC:
+		l2_len = sizeof(mpls_label);
+		udp_dst = MPLS_OVER_UDP_PORT;
+		break;
+	case ETH_P_TEB:
+		l2_len = ETH_HLEN;
+		if (ext_proto & EXTPROTO_VXLAN) {
+			udp_dst = VXLAN_UDP_PORT;
+			l2_len += sizeof(struct vxlanhdr);
+		} else
+			udp_dst = ETH_OVER_UDP_PORT;
+		break;
+	}
+	flags |= BPF_F_ADJ_ROOM_ENCAP_L2(l2_len);
+
+	switch (encap_proto) {
+	case IPPROTO_GRE:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L4_GRE;
+		olen += sizeof(h_outer.l4hdr.gre);
+		h_outer.l4hdr.gre.protocol = bpf_htons(l2_proto);
+		h_outer.l4hdr.gre.flags = 0;
+		break;
+	case IPPROTO_UDP:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L4_UDP;
+		olen += sizeof(h_outer.l4hdr.udp);
+		h_outer.l4hdr.udp.source = __bpf_constant_htons(cfg_udp_src);
+		h_outer.l4hdr.udp.dest = bpf_htons(udp_dst);
+		tot_len = bpf_ntohs(iph_inner.payload_len) + sizeof(iph_inner) +
+			  sizeof(h_outer.l4hdr.udp) + l2_len;
+		h_outer.l4hdr.udp.check = 0;
+		h_outer.l4hdr.udp.len = bpf_htons(tot_len);
+		break;
+	case IPPROTO_IPV6:
+		break;
+	default:
+		return TC_ACT_OK;
+	}
+
+	/* add L2 encap (if specified) */
+	l2_hdr = (__u8 *)&h_outer + olen;
+	switch (l2_proto) {
+	case ETH_P_MPLS_UC:
+		*(__u32 *)l2_hdr = mpls_label;
+		break;
+	case ETH_P_TEB:
+		flags |= BPF_F_ADJ_ROOM_ENCAP_L2_ETH;
+
+		if (ext_proto & EXTPROTO_VXLAN) {
+			struct vxlanhdr *vxlan_hdr = (struct vxlanhdr *)l2_hdr;
+
+			vxlan_hdr->vx_flags = VXLAN_FLAGS;
+			vxlan_hdr->vx_vni = VXLAN_VNI;
+
+			l2_hdr += sizeof(struct vxlanhdr);
+		}
+
+		if (bpf_skb_load_bytes(skb, 0, l2_hdr, ETH_HLEN))
+			return TC_ACT_SHOT;
+		break;
+	}
+	olen += l2_len;
+
+	/* add room between mac and network header */
+	if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
+		return TC_ACT_SHOT;
+
+	/* prepare new outer network header */
+	h_outer.ip = iph_inner;
+	h_outer.ip.payload_len = bpf_htons(olen +
+					   bpf_ntohs(h_outer.ip.payload_len));
+
+	h_outer.ip.nexthdr = encap_proto;
+
+	/* store new outer network header */
+	if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
+				BPF_F_INVALIDATE_HASH) < 0)
+		return TC_ACT_SHOT;
+
+	return TC_ACT_OK;
+}
+
+static int encap_ipv6_ipip6(struct __sk_buff *skb)
+{
+	struct v6hdr h_outer = {0};
+	struct iphdr iph_inner;
+	struct tcphdr tcph;
+	struct ethhdr eth;
+	__u64 flags;
+	int olen;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_inner,
+			       sizeof(iph_inner)) < 0)
+		return TC_ACT_OK;
+
+	/* filter only packets we want */
+	if (bpf_skb_load_bytes(skb, ETH_HLEN + (iph_inner.ihl << 2),
+			       &tcph, sizeof(tcph)) < 0)
+		return TC_ACT_OK;
+
+	if (tcph.dest != __bpf_constant_htons(cfg_port))
+		return TC_ACT_OK;
+
+	olen = sizeof(h_outer.ip);
+
+	flags = BPF_F_ADJ_ROOM_FIXED_GSO | BPF_F_ADJ_ROOM_ENCAP_L3_IPV6;
+
+	/* add room between mac and network header */
+	if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, flags))
+		return TC_ACT_SHOT;
+
+	/* prepare new outer network header */
+	h_outer.ip.version = 6;
+	h_outer.ip.hop_limit = iph_inner.ttl;
+	h_outer.ip.saddr.in6_u.u6_addr8[1] = 0xfd;
+	h_outer.ip.saddr.in6_u.u6_addr8[15] = 1;
+	h_outer.ip.daddr.in6_u.u6_addr8[1] = 0xfd;
+	h_outer.ip.daddr.in6_u.u6_addr8[15] = 2;
+	h_outer.ip.payload_len = iph_inner.tot_len;
+	h_outer.ip.nexthdr = IPPROTO_IPIP;
+
+	/* store new outer network header */
+	if (bpf_skb_store_bytes(skb, ETH_HLEN, &h_outer, olen,
+				BPF_F_INVALIDATE_HASH) < 0)
+		return TC_ACT_SHOT;
+
+	/* update eth->h_proto */
+	if (bpf_skb_load_bytes(skb, 0, &eth, sizeof(eth)) < 0)
+		return TC_ACT_SHOT;
+	eth.h_proto = bpf_htons(ETH_P_IPV6);
+	if (bpf_skb_store_bytes(skb, 0, &eth, sizeof(eth), 0) < 0)
+		return TC_ACT_SHOT;
+
+	return TC_ACT_OK;
+}
+
+static __always_inline int encap_ipv6(struct __sk_buff *skb, __u8 encap_proto,
+				      __u16 l2_proto)
+{
+	return __encap_ipv6(skb, encap_proto, l2_proto, 0);
+}
+
+SEC("tc")
+int __encap_ipip_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_IPIP, ETH_P_IP);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_gre_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_GRE, ETH_P_IP);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_gre_mpls(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_GRE, ETH_P_MPLS_UC);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_gre_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_GRE, ETH_P_TEB);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_udp_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_UDP, ETH_P_IP);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_udp_mpls(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_UDP, ETH_P_MPLS_UC);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_udp_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv4(skb, IPPROTO_UDP, ETH_P_TEB);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_vxlan_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return __encap_ipv4(skb, IPPROTO_UDP,
+				    ETH_P_TEB,
+				    EXTPROTO_VXLAN);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_sit_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv4(skb, IPPROTO_IPV6, ETH_P_IP);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6tnl_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_IPV6, ETH_P_IPV6);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ipip6_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IP))
+		return encap_ipv6_ipip6(skb);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6gre_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_GRE, ETH_P_IPV6);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6gre_mpls(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_GRE, ETH_P_MPLS_UC);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6gre_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_GRE, ETH_P_TEB);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6udp_none(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_UDP, ETH_P_IPV6);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6udp_mpls(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_UDP, ETH_P_MPLS_UC);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6udp_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return encap_ipv6(skb, IPPROTO_UDP, ETH_P_TEB);
+	else
+		return TC_ACT_OK;
+}
+
+SEC("tc")
+int __encap_ip6vxlan_eth(struct __sk_buff *skb)
+{
+	if (skb->protocol == __bpf_constant_htons(ETH_P_IPV6))
+		return __encap_ipv6(skb, IPPROTO_UDP,
+				    ETH_P_TEB,
+				    EXTPROTO_VXLAN);
+	else
+		return TC_ACT_OK;
+}
+
+static int decap_internal(struct __sk_buff *skb, int off, int len, char proto)
+{
+	__u64 flags = BPF_F_ADJ_ROOM_FIXED_GSO;
+	struct ipv6_opt_hdr ip6_opt_hdr;
+	struct gre_hdr greh;
+	struct udphdr udph;
+	int olen = len;
+
+	switch (proto) {
+	case IPPROTO_IPIP:
+		flags |= BPF_F_ADJ_ROOM_DECAP_L3_IPV4;
+		break;
+	case IPPROTO_IPV6:
+		flags |= BPF_F_ADJ_ROOM_DECAP_L3_IPV6;
+		break;
+	case NEXTHDR_DEST:
+		if (bpf_skb_load_bytes(skb, off + len, &ip6_opt_hdr,
+				       sizeof(ip6_opt_hdr)) < 0)
+			return TC_ACT_OK;
+		switch (ip6_opt_hdr.nexthdr) {
+		case IPPROTO_IPIP:
+			flags |= BPF_F_ADJ_ROOM_DECAP_L3_IPV4;
+			break;
+		case IPPROTO_IPV6:
+			flags |= BPF_F_ADJ_ROOM_DECAP_L3_IPV6;
+			break;
+		default:
+			return TC_ACT_OK;
+		}
+		break;
+	case IPPROTO_GRE:
+		olen += sizeof(struct gre_hdr);
+		if (bpf_skb_load_bytes(skb, off + len, &greh, sizeof(greh)) < 0)
+			return TC_ACT_OK;
+		switch (bpf_ntohs(greh.protocol)) {
+		case ETH_P_MPLS_UC:
+			olen += sizeof(mpls_label);
+			break;
+		case ETH_P_TEB:
+			olen += ETH_HLEN;
+			break;
+		}
+		break;
+	case IPPROTO_UDP:
+		olen += sizeof(struct udphdr);
+		if (bpf_skb_load_bytes(skb, off + len, &udph, sizeof(udph)) < 0)
+			return TC_ACT_OK;
+		switch (bpf_ntohs(udph.dest)) {
+		case MPLS_OVER_UDP_PORT:
+			olen += sizeof(mpls_label);
+			break;
+		case ETH_OVER_UDP_PORT:
+			olen += ETH_HLEN;
+			break;
+		case VXLAN_UDP_PORT:
+			olen += ETH_HLEN + sizeof(struct vxlanhdr);
+			break;
+		}
+		break;
+	default:
+		return TC_ACT_OK;
+	}
+
+	if (bpf_skb_adjust_room(skb, -olen, BPF_ADJ_ROOM_MAC, flags))
+		return TC_ACT_SHOT;
+
+	return TC_ACT_OK;
+}
+
+static int decap_ipv4(struct __sk_buff *skb)
+{
+	struct iphdr iph_outer;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_outer,
+			       sizeof(iph_outer)) < 0)
+		return TC_ACT_OK;
+
+	if (iph_outer.ihl != 5)
+		return TC_ACT_OK;
+
+	return decap_internal(skb, ETH_HLEN, sizeof(iph_outer),
+			      iph_outer.protocol);
+}
+
+static int decap_ipv6(struct __sk_buff *skb)
+{
+	struct ipv6hdr iph_outer;
+
+	if (bpf_skb_load_bytes(skb, ETH_HLEN, &iph_outer,
+			       sizeof(iph_outer)) < 0)
+		return TC_ACT_OK;
+
+	return decap_internal(skb, ETH_HLEN, sizeof(iph_outer),
+			      iph_outer.nexthdr);
+}
+
+SEC("tc")
+int decap_f(struct __sk_buff *skb)
+{
+	switch (skb->protocol) {
+	case __bpf_constant_htons(ETH_P_IP):
+		return decap_ipv4(skb);
+	case __bpf_constant_htons(ETH_P_IPV6):
+		return decap_ipv6(skb);
+	default:
+		/* does not match, ignore */
+		return TC_ACT_OK;
+	}
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
new file mode 100644
index 000000000000..7d5293de1952
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.c
@@ -0,0 +1,591 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_tracing_net.h"
+#include "bpf_kfuncs.h"
+#include "test_siphash.h"
+#include "test_tcp_custom_syncookie.h"
+#include "bpf_misc.h"
+
+#define MAX_PACKET_OFF 0xffff
+
+/* Hash is calculated for each client and split into ISN and TS.
+ *
+ *       MSB                                   LSB
+ * ISN:  | 31 ... 8 | 7 6 |   5 |    4 | 3 2 1 0 |
+ *       |   Hash_1 | MSS | ECN | SACK |  WScale |
+ *
+ * TS:   | 31 ... 8 |          7 ... 0           |
+ *       |   Random |           Hash_2           |
+ */
+#define COOKIE_BITS	8
+#define COOKIE_MASK	(((__u32)1 << COOKIE_BITS) - 1)
+
+enum {
+	/* 0xf is invalid thus means that SYN did not have WScale. */
+	BPF_SYNCOOKIE_WSCALE_MASK	= (1 << 4) - 1,
+	BPF_SYNCOOKIE_SACK		= (1 << 4),
+	BPF_SYNCOOKIE_ECN		= (1 << 5),
+};
+
+#define MSS_LOCAL_IPV4	65495
+#define MSS_LOCAL_IPV6	65476
+
+const __u16 msstab4[] = {
+	536,
+	1300,
+	1460,
+	MSS_LOCAL_IPV4,
+};
+
+const __u16 msstab6[] = {
+	1280 - 60, /* IPV6_MIN_MTU - 60 */
+	1480 - 60,
+	9000 - 60,
+	MSS_LOCAL_IPV6,
+};
+
+static siphash_key_t test_key_siphash = {
+	{ 0x0706050403020100ULL, 0x0f0e0d0c0b0a0908ULL }
+};
+
+struct tcp_syncookie {
+	struct __sk_buff *skb;
+	void *data;
+	void *data_end;
+	struct ethhdr *eth;
+	struct iphdr *ipv4;
+	struct ipv6hdr *ipv6;
+	struct tcphdr *tcp;
+	__be32 *ptr32;
+	struct bpf_tcp_req_attrs attrs;
+	u32 off;
+	u32 cookie;
+	u64 first;
+};
+
+bool handled_syn, handled_ack;
+
+static int tcp_load_headers(struct tcp_syncookie *ctx)
+{
+	ctx->data = (void *)(long)ctx->skb->data;
+	ctx->data_end = (void *)(long)ctx->skb->data_end;
+	ctx->eth = (struct ethhdr *)(long)ctx->skb->data;
+
+	if (ctx->eth + 1 > ctx->data_end)
+		goto err;
+
+	switch (bpf_ntohs(ctx->eth->h_proto)) {
+	case ETH_P_IP:
+		ctx->ipv4 = (struct iphdr *)(ctx->eth + 1);
+
+		if (ctx->ipv4 + 1 > ctx->data_end)
+			goto err;
+
+		if (ctx->ipv4->ihl != sizeof(*ctx->ipv4) / 4)
+			goto err;
+
+		if (ctx->ipv4->version != 4)
+			goto err;
+
+		if (ctx->ipv4->protocol != IPPROTO_TCP)
+			goto err;
+
+		ctx->tcp = (struct tcphdr *)(ctx->ipv4 + 1);
+		break;
+	case ETH_P_IPV6:
+		ctx->ipv6 = (struct ipv6hdr *)(ctx->eth + 1);
+
+		if (ctx->ipv6 + 1 > ctx->data_end)
+			goto err;
+
+		if (ctx->ipv6->version != 6)
+			goto err;
+
+		if (ctx->ipv6->nexthdr != NEXTHDR_TCP)
+			goto err;
+
+		ctx->tcp = (struct tcphdr *)(ctx->ipv6 + 1);
+		break;
+	default:
+		goto err;
+	}
+
+	if (ctx->tcp + 1 > ctx->data_end)
+		goto err;
+
+	return 0;
+err:
+	return -1;
+}
+
+static int tcp_reload_headers(struct tcp_syncookie *ctx)
+{
+	/* Without volatile,
+	 * R3 32-bit pointer arithmetic prohibited
+	 */
+	volatile u64 data_len = ctx->skb->data_end - ctx->skb->data;
+
+	if (ctx->tcp->doff < sizeof(*ctx->tcp) / 4)
+		goto err;
+
+	/* Needed to calculate csum and parse TCP options. */
+	if (bpf_skb_change_tail(ctx->skb, data_len + 60 - ctx->tcp->doff * 4, 0))
+		goto err;
+
+	ctx->data = (void *)(long)ctx->skb->data;
+	ctx->data_end = (void *)(long)ctx->skb->data_end;
+	ctx->eth = (struct ethhdr *)(long)ctx->skb->data;
+	if (ctx->ipv4) {
+		ctx->ipv4 = (struct iphdr *)(ctx->eth + 1);
+		ctx->ipv6 = NULL;
+		ctx->tcp = (struct tcphdr *)(ctx->ipv4 + 1);
+	} else {
+		ctx->ipv4 = NULL;
+		ctx->ipv6 = (struct ipv6hdr *)(ctx->eth + 1);
+		ctx->tcp = (struct tcphdr *)(ctx->ipv6 + 1);
+	}
+
+	if ((void *)ctx->tcp + 60 > ctx->data_end)
+		goto err;
+
+	return 0;
+err:
+	return -1;
+}
+
+static __sum16 tcp_v4_csum(struct tcp_syncookie *ctx, __wsum csum)
+{
+	return csum_tcpudp_magic(ctx->ipv4->saddr, ctx->ipv4->daddr,
+				 ctx->tcp->doff * 4, IPPROTO_TCP, csum);
+}
+
+static __sum16 tcp_v6_csum(struct tcp_syncookie *ctx, __wsum csum)
+{
+	return csum_ipv6_magic(&ctx->ipv6->saddr, &ctx->ipv6->daddr,
+			       ctx->tcp->doff * 4, IPPROTO_TCP, csum);
+}
+
+static int tcp_validate_header(struct tcp_syncookie *ctx)
+{
+	s64 csum;
+
+	if (tcp_reload_headers(ctx))
+		goto err;
+
+	csum = bpf_csum_diff(0, 0, (void *)ctx->tcp, ctx->tcp->doff * 4, 0);
+	if (csum < 0)
+		goto err;
+
+	if (ctx->ipv4) {
+		/* check tcp_v4_csum(csum) is 0 if not on lo. */
+
+		csum = bpf_csum_diff(0, 0, (void *)ctx->ipv4, ctx->ipv4->ihl * 4, 0);
+		if (csum < 0)
+			goto err;
+
+		if (csum_fold(csum) != 0)
+			goto err;
+	} else if (ctx->ipv6) {
+		/* check tcp_v6_csum(csum) is 0 if not on lo. */
+	}
+
+	return 0;
+err:
+	return -1;
+}
+
+static __always_inline void *next(struct tcp_syncookie *ctx, __u32 sz)
+{
+	__u64 off = ctx->off;
+	__u8 *data;
+
+	/* Verifier forbids access to packet when offset exceeds MAX_PACKET_OFF */
+	if (off > MAX_PACKET_OFF - sz)
+		return NULL;
+
+	data = ctx->data + off;
+	barrier_var(data);
+	if (data + sz >= ctx->data_end)
+		return NULL;
+
+	ctx->off += sz;
+	return data;
+}
+
+static int tcp_parse_option(__u32 index, struct tcp_syncookie *ctx)
+{
+	__u8 *opcode, *opsize, *wscale;
+	__u32 *tsval, *tsecr;
+	__u16 *mss;
+	__u32 off;
+
+	off = ctx->off;
+	opcode = next(ctx, 1);
+	if (!opcode)
+		goto stop;
+
+	if (*opcode == TCPOPT_EOL)
+		goto stop;
+
+	if (*opcode == TCPOPT_NOP)
+		goto next;
+
+	opsize = next(ctx, 1);
+	if (!opsize)
+		goto stop;
+
+	if (*opsize < 2)
+		goto stop;
+
+	switch (*opcode) {
+	case TCPOPT_MSS:
+		mss = next(ctx, 2);
+		if (*opsize == TCPOLEN_MSS && ctx->tcp->syn && mss)
+			ctx->attrs.mss = get_unaligned_be16(mss);
+		break;
+	case TCPOPT_WINDOW:
+		wscale = next(ctx, 1);
+		if (*opsize == TCPOLEN_WINDOW && ctx->tcp->syn && wscale) {
+			ctx->attrs.wscale_ok = 1;
+			ctx->attrs.snd_wscale = *wscale;
+		}
+		break;
+	case TCPOPT_TIMESTAMP:
+		tsval = next(ctx, 4);
+		tsecr = next(ctx, 4);
+		if (*opsize == TCPOLEN_TIMESTAMP && tsval && tsecr) {
+			ctx->attrs.rcv_tsval = get_unaligned_be32(tsval);
+			ctx->attrs.rcv_tsecr = get_unaligned_be32(tsecr);
+
+			if (ctx->tcp->syn && ctx->attrs.rcv_tsecr)
+				ctx->attrs.tstamp_ok = 0;
+			else
+				ctx->attrs.tstamp_ok = 1;
+		}
+		break;
+	case TCPOPT_SACK_PERM:
+		if (*opsize == TCPOLEN_SACK_PERM && ctx->tcp->syn)
+			ctx->attrs.sack_ok = 1;
+		break;
+	}
+
+	ctx->off = off + *opsize;
+next:
+	return 0;
+stop:
+	return 1;
+}
+
+static void tcp_parse_options(struct tcp_syncookie *ctx)
+{
+	ctx->off = (__u8 *)(ctx->tcp + 1) - (__u8 *)ctx->data,
+
+	bpf_loop(40, tcp_parse_option, ctx, 0);
+}
+
+static int tcp_validate_sysctl(struct tcp_syncookie *ctx)
+{
+	if ((ctx->ipv4 && ctx->attrs.mss != MSS_LOCAL_IPV4) ||
+	    (ctx->ipv6 && ctx->attrs.mss != MSS_LOCAL_IPV6))
+		goto err;
+
+	if (!ctx->attrs.wscale_ok ||
+	    !ctx->attrs.snd_wscale ||
+	    ctx->attrs.snd_wscale >= BPF_SYNCOOKIE_WSCALE_MASK)
+		goto err;
+
+	if (!ctx->attrs.tstamp_ok)
+		goto err;
+
+	if (!ctx->attrs.sack_ok)
+		goto err;
+
+	if (!ctx->tcp->ece || !ctx->tcp->cwr)
+		goto err;
+
+	return 0;
+err:
+	return -1;
+}
+
+static void tcp_prepare_cookie(struct tcp_syncookie *ctx)
+{
+	u32 seq = bpf_ntohl(ctx->tcp->seq);
+	u64 first = 0, second;
+	int mssind = 0;
+	u32 hash;
+
+	if (ctx->ipv4) {
+		for (mssind = ARRAY_SIZE(msstab4) - 1; mssind; mssind--)
+			if (ctx->attrs.mss >= msstab4[mssind])
+				break;
+
+		ctx->attrs.mss = msstab4[mssind];
+
+		first = (u64)ctx->ipv4->saddr << 32 | ctx->ipv4->daddr;
+	} else if (ctx->ipv6) {
+		for (mssind = ARRAY_SIZE(msstab6) - 1; mssind; mssind--)
+			if (ctx->attrs.mss >= msstab6[mssind])
+				break;
+
+		ctx->attrs.mss = msstab6[mssind];
+
+		first = (u64)ctx->ipv6->saddr.in6_u.u6_addr8[0] << 32 |
+			ctx->ipv6->daddr.in6_u.u6_addr32[0];
+	}
+
+	second = (u64)seq << 32 | ctx->tcp->source << 16 | ctx->tcp->dest;
+	hash = siphash_2u64(first, second, &test_key_siphash);
+
+	if (ctx->attrs.tstamp_ok) {
+		ctx->attrs.rcv_tsecr = bpf_get_prandom_u32();
+		ctx->attrs.rcv_tsecr &= ~COOKIE_MASK;
+		ctx->attrs.rcv_tsecr |= hash & COOKIE_MASK;
+	}
+
+	hash &= ~COOKIE_MASK;
+	hash |= mssind << 6;
+
+	if (ctx->attrs.wscale_ok)
+		hash |= ctx->attrs.snd_wscale & BPF_SYNCOOKIE_WSCALE_MASK;
+
+	if (ctx->attrs.sack_ok)
+		hash |= BPF_SYNCOOKIE_SACK;
+
+	if (ctx->attrs.tstamp_ok && ctx->tcp->ece && ctx->tcp->cwr)
+		hash |= BPF_SYNCOOKIE_ECN;
+
+	ctx->cookie = hash;
+}
+
+static void tcp_write_options(struct tcp_syncookie *ctx)
+{
+	ctx->ptr32 = (__be32 *)(ctx->tcp + 1);
+
+	*ctx->ptr32++ = bpf_htonl(TCPOPT_MSS << 24 | TCPOLEN_MSS << 16 |
+				  ctx->attrs.mss);
+
+	if (ctx->attrs.wscale_ok)
+		*ctx->ptr32++ = bpf_htonl(TCPOPT_NOP << 24 |
+					  TCPOPT_WINDOW << 16 |
+					  TCPOLEN_WINDOW << 8 |
+					  ctx->attrs.snd_wscale);
+
+	if (ctx->attrs.tstamp_ok) {
+		if (ctx->attrs.sack_ok)
+			*ctx->ptr32++ = bpf_htonl(TCPOPT_SACK_PERM << 24 |
+						  TCPOLEN_SACK_PERM << 16 |
+						  TCPOPT_TIMESTAMP << 8 |
+						  TCPOLEN_TIMESTAMP);
+		else
+			*ctx->ptr32++ = bpf_htonl(TCPOPT_NOP << 24 |
+						  TCPOPT_NOP << 16 |
+						  TCPOPT_TIMESTAMP << 8 |
+						  TCPOLEN_TIMESTAMP);
+
+		*ctx->ptr32++ = bpf_htonl(ctx->attrs.rcv_tsecr);
+		*ctx->ptr32++ = bpf_htonl(ctx->attrs.rcv_tsval);
+	} else if (ctx->attrs.sack_ok) {
+		*ctx->ptr32++ = bpf_htonl(TCPOPT_NOP << 24 |
+					  TCPOPT_NOP << 16 |
+					  TCPOPT_SACK_PERM << 8 |
+					  TCPOLEN_SACK_PERM);
+	}
+}
+
+static int tcp_handle_syn(struct tcp_syncookie *ctx)
+{
+	s64 csum;
+
+	if (tcp_validate_header(ctx))
+		goto err;
+
+	tcp_parse_options(ctx);
+
+	if (tcp_validate_sysctl(ctx))
+		goto err;
+
+	tcp_prepare_cookie(ctx);
+	tcp_write_options(ctx);
+
+	swap(ctx->tcp->source, ctx->tcp->dest);
+	ctx->tcp->check = 0;
+	ctx->tcp->ack_seq = bpf_htonl(bpf_ntohl(ctx->tcp->seq) + 1);
+	ctx->tcp->seq = bpf_htonl(ctx->cookie);
+	ctx->tcp->doff = ((long)ctx->ptr32 - (long)ctx->tcp) >> 2;
+	ctx->tcp->ack = 1;
+	if (!ctx->attrs.tstamp_ok || !ctx->tcp->ece || !ctx->tcp->cwr)
+		ctx->tcp->ece = 0;
+	ctx->tcp->cwr = 0;
+
+	csum = bpf_csum_diff(0, 0, (void *)ctx->tcp, ctx->tcp->doff * 4, 0);
+	if (csum < 0)
+		goto err;
+
+	if (ctx->ipv4) {
+		swap(ctx->ipv4->saddr, ctx->ipv4->daddr);
+		ctx->tcp->check = tcp_v4_csum(ctx, csum);
+
+		ctx->ipv4->check = 0;
+		ctx->ipv4->tos = 0;
+		ctx->ipv4->tot_len = bpf_htons((long)ctx->ptr32 - (long)ctx->ipv4);
+		ctx->ipv4->id = 0;
+		ctx->ipv4->ttl = 64;
+
+		csum = bpf_csum_diff(0, 0, (void *)ctx->ipv4, sizeof(*ctx->ipv4), 0);
+		if (csum < 0)
+			goto err;
+
+		ctx->ipv4->check = csum_fold(csum);
+	} else if (ctx->ipv6) {
+		swap(ctx->ipv6->saddr, ctx->ipv6->daddr);
+		ctx->tcp->check = tcp_v6_csum(ctx, csum);
+
+		*(__be32 *)ctx->ipv6 = bpf_htonl(0x60000000);
+		ctx->ipv6->payload_len = bpf_htons((long)ctx->ptr32 - (long)ctx->tcp);
+		ctx->ipv6->hop_limit = 64;
+	}
+
+	swap_array(ctx->eth->h_source, ctx->eth->h_dest);
+
+	if (bpf_skb_change_tail(ctx->skb, (long)ctx->ptr32 - (long)ctx->eth, 0))
+		goto err;
+
+	return bpf_redirect(ctx->skb->ifindex, 0);
+err:
+	return TC_ACT_SHOT;
+}
+
+static int tcp_validate_cookie(struct tcp_syncookie *ctx)
+{
+	u32 cookie = bpf_ntohl(ctx->tcp->ack_seq) - 1;
+	u32 seq = bpf_ntohl(ctx->tcp->seq) - 1;
+	u64 first = 0, second;
+	int mssind;
+	u32 hash;
+
+	if (ctx->ipv4)
+		first = (u64)ctx->ipv4->saddr << 32 | ctx->ipv4->daddr;
+	else if (ctx->ipv6)
+		first = (u64)ctx->ipv6->saddr.in6_u.u6_addr8[0] << 32 |
+			ctx->ipv6->daddr.in6_u.u6_addr32[0];
+
+	second = (u64)seq << 32 | ctx->tcp->source << 16 | ctx->tcp->dest;
+	hash = siphash_2u64(first, second, &test_key_siphash);
+
+	if (ctx->attrs.tstamp_ok)
+		hash -= ctx->attrs.rcv_tsecr & COOKIE_MASK;
+	else
+		hash &= ~COOKIE_MASK;
+
+	hash -= cookie & ~COOKIE_MASK;
+	if (hash)
+		goto err;
+
+	mssind = (cookie & (3 << 6)) >> 6;
+	if (ctx->ipv4)
+		ctx->attrs.mss = msstab4[mssind];
+	else
+		ctx->attrs.mss = msstab6[mssind];
+
+	ctx->attrs.snd_wscale = cookie & BPF_SYNCOOKIE_WSCALE_MASK;
+	ctx->attrs.rcv_wscale = ctx->attrs.snd_wscale;
+	ctx->attrs.wscale_ok = ctx->attrs.snd_wscale == BPF_SYNCOOKIE_WSCALE_MASK;
+	ctx->attrs.sack_ok = cookie & BPF_SYNCOOKIE_SACK;
+	ctx->attrs.ecn_ok = cookie & BPF_SYNCOOKIE_ECN;
+
+	return 0;
+err:
+	return -1;
+}
+
+static int tcp_handle_ack(struct tcp_syncookie *ctx)
+{
+	struct bpf_sock_tuple tuple;
+	struct bpf_sock *skc;
+	int ret = TC_ACT_OK;
+	struct sock *sk;
+	u32 tuple_size;
+
+	if (ctx->ipv4) {
+		tuple.ipv4.saddr = ctx->ipv4->saddr;
+		tuple.ipv4.daddr = ctx->ipv4->daddr;
+		tuple.ipv4.sport = ctx->tcp->source;
+		tuple.ipv4.dport = ctx->tcp->dest;
+		tuple_size = sizeof(tuple.ipv4);
+	} else if (ctx->ipv6) {
+		__builtin_memcpy(tuple.ipv6.saddr, &ctx->ipv6->saddr, sizeof(tuple.ipv6.saddr));
+		__builtin_memcpy(tuple.ipv6.daddr, &ctx->ipv6->daddr, sizeof(tuple.ipv6.daddr));
+		tuple.ipv6.sport = ctx->tcp->source;
+		tuple.ipv6.dport = ctx->tcp->dest;
+		tuple_size = sizeof(tuple.ipv6);
+	} else {
+		goto out;
+	}
+
+	skc = bpf_skc_lookup_tcp(ctx->skb, &tuple, tuple_size, -1, 0);
+	if (!skc)
+		goto out;
+
+	if (skc->state != TCP_LISTEN)
+		goto release;
+
+	sk = (struct sock *)bpf_skc_to_tcp_sock(skc);
+	if (!sk)
+		goto err;
+
+	if (tcp_validate_header(ctx))
+		goto err;
+
+	tcp_parse_options(ctx);
+
+	if (tcp_validate_cookie(ctx))
+		goto err;
+
+	ret = bpf_sk_assign_tcp_reqsk(ctx->skb, sk, &ctx->attrs, sizeof(ctx->attrs));
+	if (ret < 0)
+		goto err;
+
+release:
+	bpf_sk_release(skc);
+out:
+	return ret;
+
+err:
+	ret = TC_ACT_SHOT;
+	goto release;
+}
+
+SEC("tc")
+int tcp_custom_syncookie(struct __sk_buff *skb)
+{
+	struct tcp_syncookie ctx = {
+		.skb = skb,
+	};
+
+	if (tcp_load_headers(&ctx))
+		return TC_ACT_OK;
+
+	if (ctx.tcp->rst)
+		return TC_ACT_OK;
+
+	if (ctx.tcp->syn) {
+		if (ctx.tcp->ack)
+			return TC_ACT_OK;
+
+		handled_syn = true;
+
+		return tcp_handle_syn(&ctx);
+	}
+
+	handled_ack = true;
+
+	return tcp_handle_ack(&ctx);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.h b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.h
new file mode 100644
index 000000000000..34024de6337e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcp_custom_syncookie.h
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#ifndef _TEST_TCP_SYNCOOKIE_H
+#define _TEST_TCP_SYNCOOKIE_H
+
+#define __packed __attribute__((__packed__))
+#define __force
+
+#define swap(a, b)				\
+	do {					\
+		typeof(a) __tmp = (a);		\
+		(a) = (b);			\
+		(b) = __tmp;			\
+	} while (0)
+
+#define swap_array(a, b)				\
+	do {						\
+		typeof(a) __tmp[sizeof(a)];		\
+		__builtin_memcpy(__tmp, a, sizeof(a));	\
+		__builtin_memcpy(a, b, sizeof(a));	\
+		__builtin_memcpy(b, __tmp, sizeof(a));	\
+	} while (0)
+
+/* linux/unaligned.h */
+#define __get_unaligned_t(type, ptr) ({						\
+	const struct { type x; } __packed * __pptr = (typeof(__pptr))(ptr);	\
+	__pptr->x;								\
+})
+
+#define get_unaligned(ptr) __get_unaligned_t(typeof(*(ptr)), (ptr))
+
+static inline u16 get_unaligned_be16(const void *p)
+{
+	return bpf_ntohs(__get_unaligned_t(__be16, p));
+}
+
+static inline u32 get_unaligned_be32(const void *p)
+{
+	return bpf_ntohl(__get_unaligned_t(__be32, p));
+}
+
+/* lib/checksum.c */
+static inline u32 from64to32(u64 x)
+{
+	/* add up 32-bit and 32-bit for 32+c bit */
+	x = (x & 0xffffffff) + (x >> 32);
+	/* add up carry.. */
+	x = (x & 0xffffffff) + (x >> 32);
+	return (u32)x;
+}
+
+static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+					__u32 len, __u8 proto, __wsum sum)
+{
+	unsigned long long s = (__force u32)sum;
+
+	s += (__force u32)saddr;
+	s += (__force u32)daddr;
+#ifdef __BIG_ENDIAN
+	s += proto + len;
+#else
+	s += (proto + len) << 8;
+#endif
+	return (__force __wsum)from64to32(s);
+}
+
+/* asm-generic/checksum.h */
+static inline __sum16 csum_fold(__wsum csum)
+{
+	u32 sum = (__force u32)csum;
+
+	sum = (sum & 0xffff) + (sum >> 16);
+	sum = (sum & 0xffff) + (sum >> 16);
+	return (__force __sum16)~sum;
+}
+
+static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, __u32 len,
+					__u8 proto, __wsum sum)
+{
+	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
+}
+
+/* net/ipv6/ip6_checksum.c */
+static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+				      const struct in6_addr *daddr,
+				      __u32 len, __u8 proto, __wsum csum)
+{
+	int carry;
+	__u32 ulen;
+	__u32 uproto;
+	__u32 sum = (__force u32)csum;
+
+	sum += (__force u32)saddr->in6_u.u6_addr32[0];
+	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[0]);
+	sum += carry;
+
+	sum += (__force u32)saddr->in6_u.u6_addr32[1];
+	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[1]);
+	sum += carry;
+
+	sum += (__force u32)saddr->in6_u.u6_addr32[2];
+	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[2]);
+	sum += carry;
+
+	sum += (__force u32)saddr->in6_u.u6_addr32[3];
+	carry = (sum < (__force u32)saddr->in6_u.u6_addr32[3]);
+	sum += carry;
+
+	sum += (__force u32)daddr->in6_u.u6_addr32[0];
+	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[0]);
+	sum += carry;
+
+	sum += (__force u32)daddr->in6_u.u6_addr32[1];
+	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[1]);
+	sum += carry;
+
+	sum += (__force u32)daddr->in6_u.u6_addr32[2];
+	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[2]);
+	sum += carry;
+
+	sum += (__force u32)daddr->in6_u.u6_addr32[3];
+	carry = (sum < (__force u32)daddr->in6_u.u6_addr32[3]);
+	sum += carry;
+
+	ulen = (__force u32)bpf_htonl((__u32)len);
+	sum += ulen;
+	carry = (sum < ulen);
+	sum += carry;
+
+	uproto = (__force u32)bpf_htonl(proto);
+	sum += uproto;
+	carry = (sum < uproto);
+	sum += carry;
+
+	return csum_fold((__force __wsum)sum);
+}
+#endif
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_estats.c b/tools/testing/selftests/bpf/progs/test_tcp_estats.c
new file mode 100644
index 000000000000..e2ae049c2f85
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcp_estats.c
@@ -0,0 +1,257 @@
+/* Copyright (c) 2017 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+
+/* This program shows clang/llvm is able to generate code pattern
+ * like:
+ *   _tcp_send_active_reset:
+ *      0:       bf 16 00 00 00 00 00 00         r6 = r1
+ *    ......
+ *    335:       b7 01 00 00 0f 00 00 00         r1 = 15
+ *    336:       05 00 48 00 00 00 00 00         goto 72
+ *
+ *   LBB0_3:
+ *    337:       b7 01 00 00 01 00 00 00         r1 = 1
+ *    338:       63 1a d0 ff 00 00 00 00         *(u32 *)(r10 - 48) = r1
+ *    408:       b7 01 00 00 03 00 00 00         r1 = 3
+ *
+ *   LBB0_4:
+ *    409:       71 a2 fe ff 00 00 00 00         r2 = *(u8 *)(r10 - 2)
+ *    410:       bf a7 00 00 00 00 00 00         r7 = r10
+ *    411:       07 07 00 00 b8 ff ff ff         r7 += -72
+ *    412:       bf 73 00 00 00 00 00 00         r3 = r7
+ *    413:       0f 13 00 00 00 00 00 00         r3 += r1
+ *    414:       73 23 2d 00 00 00 00 00         *(u8 *)(r3 + 45) = r2
+ *
+ * From the above code snippet, the code generated by the compiler
+ * is reasonable. The "r1" is assigned to different values in basic
+ * blocks "_tcp_send_active_reset" and "LBB0_3", and used in "LBB0_4".
+ * The verifier should be able to handle such code patterns.
+ */
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/ipv6.h>
+#include <linux/version.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+
+#define _(P) ({typeof(P) val = 0; bpf_probe_read_kernel(&val, sizeof(val), &P); val;})
+#define TCP_ESTATS_MAGIC 0xBAADBEEF
+
+/* This test case needs "sock" and "pt_regs" data structure.
+ * Recursively, "sock" needs "sock_common" and "inet_sock".
+ * However, this is a unit test case only for
+ * verifier purpose without bpf program execution.
+ * We can safely mock much simpler data structures, basically
+ * only taking the necessary fields from kernel headers.
+ */
+typedef __u32 __bitwise __portpair;
+typedef __u64 __bitwise __addrpair;
+
+struct sock_common {
+	unsigned short		skc_family;
+	union {
+		__addrpair	skc_addrpair;
+		struct {
+			__be32	skc_daddr;
+			__be32	skc_rcv_saddr;
+		};
+	};
+	union {
+		__portpair	skc_portpair;
+		struct {
+			__be16	skc_dport;
+			__u16	skc_num;
+		};
+	};
+	struct in6_addr		skc_v6_daddr;
+	struct in6_addr		skc_v6_rcv_saddr;
+};
+
+struct sock {
+	struct sock_common	__sk_common;
+#define sk_family		__sk_common.skc_family
+#define sk_v6_daddr		__sk_common.skc_v6_daddr
+#define sk_v6_rcv_saddr		__sk_common.skc_v6_rcv_saddr
+};
+
+struct inet_sock {
+	struct sock		sk;
+#define inet_daddr		sk.__sk_common.skc_daddr
+#define inet_dport		sk.__sk_common.skc_dport
+	__be32			inet_saddr;
+	__be16			inet_sport;
+};
+
+struct pt_regs {
+	long di;
+};
+
+static inline struct inet_sock *inet_sk(const struct sock *sk)
+{
+	return (struct inet_sock *)sk;
+}
+
+/* Define various data structures for state recording.
+ * Some fields are not used due to test simplification.
+ */
+enum tcp_estats_addrtype {
+	TCP_ESTATS_ADDRTYPE_IPV4 = 1,
+	TCP_ESTATS_ADDRTYPE_IPV6 = 2
+};
+
+enum tcp_estats_event_type {
+	TCP_ESTATS_ESTABLISH,
+	TCP_ESTATS_PERIODIC,
+	TCP_ESTATS_TIMEOUT,
+	TCP_ESTATS_RETRANSMIT_TIMEOUT,
+	TCP_ESTATS_RETRANSMIT_OTHER,
+	TCP_ESTATS_SYN_RETRANSMIT,
+	TCP_ESTATS_SYNACK_RETRANSMIT,
+	TCP_ESTATS_TERM,
+	TCP_ESTATS_TX_RESET,
+	TCP_ESTATS_RX_RESET,
+	TCP_ESTATS_WRITE_TIMEOUT,
+	TCP_ESTATS_CONN_TIMEOUT,
+	TCP_ESTATS_ACK_LATENCY,
+	TCP_ESTATS_NEVENTS,
+};
+
+struct tcp_estats_event {
+	int pid;
+	int cpu;
+	unsigned long ts;
+	unsigned int magic;
+	enum tcp_estats_event_type event_type;
+};
+
+/* The below data structure is packed in order for
+ * llvm compiler to generate expected code.
+ */
+struct tcp_estats_conn_id {
+	unsigned int localaddressType;
+	struct {
+		unsigned char data[16];
+	} localaddress;
+	struct {
+		unsigned char data[16];
+	} remaddress;
+	unsigned short    localport;
+	unsigned short    remport;
+} __attribute__((__packed__));
+
+struct tcp_estats_basic_event {
+	struct tcp_estats_event event;
+	struct tcp_estats_conn_id conn_id;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1024);
+	__type(key, __u32);
+	__type(value, struct tcp_estats_basic_event);
+} ev_record_map SEC(".maps");
+
+struct dummy_tracepoint_args {
+	unsigned long long pad;
+	struct sock *sock;
+};
+
+static __always_inline void tcp_estats_ev_init(struct tcp_estats_event *event,
+					       enum tcp_estats_event_type type)
+{
+	event->magic = TCP_ESTATS_MAGIC;
+	event->ts = bpf_ktime_get_ns();
+	event->event_type = type;
+}
+
+static __always_inline void unaligned_u32_set(unsigned char *to, __u8 *from)
+{
+	to[0] = _(from[0]);
+	to[1] = _(from[1]);
+	to[2] = _(from[2]);
+	to[3] = _(from[3]);
+}
+
+static __always_inline void conn_id_ipv4_init(struct tcp_estats_conn_id *conn_id,
+					      __be32 *saddr, __be32 *daddr)
+{
+	conn_id->localaddressType = TCP_ESTATS_ADDRTYPE_IPV4;
+
+	unaligned_u32_set(conn_id->localaddress.data, (__u8 *)saddr);
+	unaligned_u32_set(conn_id->remaddress.data, (__u8 *)daddr);
+}
+
+static __always_inline void conn_id_ipv6_init(struct tcp_estats_conn_id *conn_id,
+					      __be32 *saddr, __be32 *daddr)
+{
+	conn_id->localaddressType = TCP_ESTATS_ADDRTYPE_IPV6;
+
+	unaligned_u32_set(conn_id->localaddress.data, (__u8 *)saddr);
+	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32),
+			  (__u8 *)(saddr + 1));
+	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32) * 2,
+			  (__u8 *)(saddr + 2));
+	unaligned_u32_set(conn_id->localaddress.data + sizeof(__u32) * 3,
+			  (__u8 *)(saddr + 3));
+
+	unaligned_u32_set(conn_id->remaddress.data,
+			  (__u8 *)(daddr));
+	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32),
+			  (__u8 *)(daddr + 1));
+	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32) * 2,
+			  (__u8 *)(daddr + 2));
+	unaligned_u32_set(conn_id->remaddress.data + sizeof(__u32) * 3,
+			  (__u8 *)(daddr + 3));
+}
+
+static __always_inline void tcp_estats_conn_id_init(struct tcp_estats_conn_id *conn_id,
+						    struct sock *sk)
+{
+	conn_id->localport = _(inet_sk(sk)->inet_sport);
+	conn_id->remport = _(inet_sk(sk)->inet_dport);
+
+	if (_(sk->sk_family) == AF_INET6)
+		conn_id_ipv6_init(conn_id,
+				  sk->sk_v6_rcv_saddr.s6_addr32,
+				  sk->sk_v6_daddr.s6_addr32);
+	else
+		conn_id_ipv4_init(conn_id,
+				  &inet_sk(sk)->inet_saddr,
+				  &inet_sk(sk)->inet_daddr);
+}
+
+static __always_inline void tcp_estats_init(struct sock *sk,
+					    struct tcp_estats_event *event,
+					    struct tcp_estats_conn_id *conn_id,
+					    enum tcp_estats_event_type type)
+{
+	tcp_estats_ev_init(event, type);
+	tcp_estats_conn_id_init(conn_id, sk);
+}
+
+static __always_inline void send_basic_event(struct sock *sk,
+					     enum tcp_estats_event_type type)
+{
+	struct tcp_estats_basic_event ev;
+	__u32 key = bpf_get_prandom_u32();
+
+	memset(&ev, 0, sizeof(ev));
+	tcp_estats_init(sk, &ev.event, &ev.conn_id, type);
+	bpf_map_update_elem(&ev_record_map, &key, &ev, BPF_ANY);
+}
+
+SEC("tp/dummy/tracepoint")
+int _dummy_tracepoint(struct dummy_tracepoint_args *arg)
+{
+	if (!arg->sock)
+		return 0;
+
+	send_basic_event(arg->sock, TCP_ESTATS_TX_RESET);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tcp_hdr_options.c b/tools/testing/selftests/bpf/progs/test_tcp_hdr_options.c
new file mode 100644
index 000000000000..1ecdf4c54de4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcp_hdr_options.c
@@ -0,0 +1,623 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include <stddef.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <linux/tcp.h>
+#include <linux/socket.h>
+#include <linux/bpf.h>
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#define BPF_PROG_TEST_TCP_HDR_OPTIONS
+#include "test_tcp_hdr_options.h"
+#include "bpf_misc.h"
+
+__u8 test_kind = TCPOPT_EXP;
+__u16 test_magic = 0xeB9F;
+__u32 inherit_cb_flags = 0;
+
+struct bpf_test_option passive_synack_out = {};
+struct bpf_test_option passive_fin_out	= {};
+
+struct bpf_test_option passive_estab_in = {};
+struct bpf_test_option passive_fin_in	= {};
+
+struct bpf_test_option active_syn_out	= {};
+struct bpf_test_option active_fin_out	= {};
+
+struct bpf_test_option active_estab_in	= {};
+struct bpf_test_option active_fin_in	= {};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct hdr_stg);
+} hdr_stg_map SEC(".maps");
+
+static bool skops_want_cookie(const struct bpf_sock_ops *skops)
+{
+	return skops->args[0] == BPF_WRITE_HDR_TCP_SYNACK_COOKIE;
+}
+
+static bool skops_current_mss(const struct bpf_sock_ops *skops)
+{
+	return skops->args[0] == BPF_WRITE_HDR_TCP_CURRENT_MSS;
+}
+
+static __u8 option_total_len(__u8 flags)
+{
+	__u8 i, len = 1; /* +1 for flags */
+
+	if (!flags)
+		return 0;
+
+	/* RESEND bit does not use a byte */
+	for (i = OPTION_RESEND + 1; i < __NR_OPTION_FLAGS; i++)
+		len += !!TEST_OPTION_FLAGS(flags, i);
+
+	if (test_kind == TCPOPT_EXP)
+		return len + TCP_BPF_EXPOPT_BASE_LEN;
+	else
+		return len + 2; /* +1 kind, +1 kind-len */
+}
+
+static void write_test_option(const struct bpf_test_option *test_opt,
+			      __u8 *data)
+{
+	__u8 offset = 0;
+
+	data[offset++] = test_opt->flags;
+	if (TEST_OPTION_FLAGS(test_opt->flags, OPTION_MAX_DELACK_MS))
+		data[offset++] = test_opt->max_delack_ms;
+
+	if (TEST_OPTION_FLAGS(test_opt->flags, OPTION_RAND))
+		data[offset++] = test_opt->rand;
+}
+
+static int store_option(struct bpf_sock_ops *skops,
+			const struct bpf_test_option *test_opt)
+{
+	union {
+		struct tcp_exprm_opt exprm;
+		struct tcp_opt regular;
+	} write_opt;
+	int err;
+
+	if (test_kind == TCPOPT_EXP) {
+		write_opt.exprm.kind = TCPOPT_EXP;
+		write_opt.exprm.len = option_total_len(test_opt->flags);
+		write_opt.exprm.magic = __bpf_htons(test_magic);
+		write_opt.exprm.data32 = 0;
+		write_test_option(test_opt, write_opt.exprm.data);
+		err = bpf_store_hdr_opt(skops, &write_opt.exprm,
+					sizeof(write_opt.exprm), 0);
+	} else {
+		write_opt.regular.kind = test_kind;
+		write_opt.regular.len = option_total_len(test_opt->flags);
+		write_opt.regular.data32 = 0;
+		write_test_option(test_opt, write_opt.regular.data);
+		err = bpf_store_hdr_opt(skops, &write_opt.regular,
+					sizeof(write_opt.regular), 0);
+	}
+
+	if (err)
+		RET_CG_ERR(err);
+
+	return CG_OK;
+}
+
+static int parse_test_option(struct bpf_test_option *opt, const __u8 *start)
+{
+	opt->flags = *start++;
+
+	if (TEST_OPTION_FLAGS(opt->flags, OPTION_MAX_DELACK_MS))
+		opt->max_delack_ms = *start++;
+
+	if (TEST_OPTION_FLAGS(opt->flags, OPTION_RAND))
+		opt->rand = *start++;
+
+	return 0;
+}
+
+static int load_option(struct bpf_sock_ops *skops,
+		       struct bpf_test_option *test_opt, bool from_syn)
+{
+	union {
+		struct tcp_exprm_opt exprm;
+		struct tcp_opt regular;
+	} search_opt;
+	int ret, load_flags = from_syn ? BPF_LOAD_HDR_OPT_TCP_SYN : 0;
+
+	if (test_kind == TCPOPT_EXP) {
+		search_opt.exprm.kind = TCPOPT_EXP;
+		search_opt.exprm.len = 4;
+		search_opt.exprm.magic = __bpf_htons(test_magic);
+		search_opt.exprm.data32 = 0;
+		ret = bpf_load_hdr_opt(skops, &search_opt.exprm,
+				       sizeof(search_opt.exprm), load_flags);
+		if (ret < 0)
+			return ret;
+		return parse_test_option(test_opt, search_opt.exprm.data);
+	} else {
+		search_opt.regular.kind = test_kind;
+		search_opt.regular.len = 0;
+		search_opt.regular.data32 = 0;
+		ret = bpf_load_hdr_opt(skops, &search_opt.regular,
+				       sizeof(search_opt.regular), load_flags);
+		if (ret < 0)
+			return ret;
+		return parse_test_option(test_opt, search_opt.regular.data);
+	}
+}
+
+static int synack_opt_len(struct bpf_sock_ops *skops)
+{
+	struct bpf_test_option test_opt = {};
+	__u8 optlen;
+	int err;
+
+	if (!passive_synack_out.flags)
+		return CG_OK;
+
+	err = load_option(skops, &test_opt, true);
+
+	/* bpf_test_option is not found */
+	if (err == -ENOMSG)
+		return CG_OK;
+
+	if (err)
+		RET_CG_ERR(err);
+
+	optlen = option_total_len(passive_synack_out.flags);
+	if (optlen) {
+		err = bpf_reserve_hdr_opt(skops, optlen, 0);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int write_synack_opt(struct bpf_sock_ops *skops)
+{
+	struct bpf_test_option opt;
+
+	if (!passive_synack_out.flags)
+		/* We should not even be called since no header
+		 * space has been reserved.
+		 */
+		RET_CG_ERR(0);
+
+	opt = passive_synack_out;
+	if (skops_want_cookie(skops))
+		SET_OPTION_FLAGS(opt.flags, OPTION_RESEND);
+
+	return store_option(skops, &opt);
+}
+
+static int syn_opt_len(struct bpf_sock_ops *skops)
+{
+	__u8 optlen;
+	int err;
+
+	if (!active_syn_out.flags)
+		return CG_OK;
+
+	optlen = option_total_len(active_syn_out.flags);
+	if (optlen) {
+		err = bpf_reserve_hdr_opt(skops, optlen, 0);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int write_syn_opt(struct bpf_sock_ops *skops)
+{
+	if (!active_syn_out.flags)
+		RET_CG_ERR(0);
+
+	return store_option(skops, &active_syn_out);
+}
+
+static int fin_opt_len(struct bpf_sock_ops *skops)
+{
+	struct bpf_test_option *opt;
+	struct hdr_stg *hdr_stg;
+	__u8 optlen;
+	int err;
+
+	if (!skops->sk)
+		RET_CG_ERR(0);
+
+	hdr_stg = bpf_sk_storage_get(&hdr_stg_map, skops->sk, NULL, 0);
+	if (!hdr_stg)
+		RET_CG_ERR(0);
+
+	if (hdr_stg->active)
+		opt = &active_fin_out;
+	else
+		opt = &passive_fin_out;
+
+	optlen = option_total_len(opt->flags);
+	if (optlen) {
+		err = bpf_reserve_hdr_opt(skops, optlen, 0);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int write_fin_opt(struct bpf_sock_ops *skops)
+{
+	struct bpf_test_option *opt;
+	struct hdr_stg *hdr_stg;
+
+	if (!skops->sk)
+		RET_CG_ERR(0);
+
+	hdr_stg = bpf_sk_storage_get(&hdr_stg_map, skops->sk, NULL, 0);
+	if (!hdr_stg)
+		RET_CG_ERR(0);
+
+	if (hdr_stg->active)
+		opt = &active_fin_out;
+	else
+		opt = &passive_fin_out;
+
+	if (!opt->flags)
+		RET_CG_ERR(0);
+
+	return store_option(skops, opt);
+}
+
+static int resend_in_ack(struct bpf_sock_ops *skops)
+{
+	struct hdr_stg *hdr_stg;
+
+	if (!skops->sk)
+		return -1;
+
+	hdr_stg = bpf_sk_storage_get(&hdr_stg_map, skops->sk, NULL, 0);
+	if (!hdr_stg)
+		return -1;
+
+	return !!hdr_stg->resend_syn;
+}
+
+static int nodata_opt_len(struct bpf_sock_ops *skops)
+{
+	int resend;
+
+	resend = resend_in_ack(skops);
+	if (resend < 0)
+		RET_CG_ERR(0);
+
+	if (resend)
+		return syn_opt_len(skops);
+
+	return CG_OK;
+}
+
+static int write_nodata_opt(struct bpf_sock_ops *skops)
+{
+	int resend;
+
+	resend = resend_in_ack(skops);
+	if (resend < 0)
+		RET_CG_ERR(0);
+
+	if (resend)
+		return write_syn_opt(skops);
+
+	return CG_OK;
+}
+
+static int data_opt_len(struct bpf_sock_ops *skops)
+{
+	/* Same as the nodata version.  Mostly to show
+	 * an example usage on skops->skb_len.
+	 */
+	return nodata_opt_len(skops);
+}
+
+static int write_data_opt(struct bpf_sock_ops *skops)
+{
+	return write_nodata_opt(skops);
+}
+
+static int current_mss_opt_len(struct bpf_sock_ops *skops)
+{
+	/* Reserve maximum that may be needed */
+	int err;
+
+	err = bpf_reserve_hdr_opt(skops, option_total_len(OPTION_MASK), 0);
+	if (err)
+		RET_CG_ERR(err);
+
+	return CG_OK;
+}
+
+static int handle_hdr_opt_len(struct bpf_sock_ops *skops)
+{
+	__u8 tcp_flags = skops_tcp_flags(skops);
+
+	if ((tcp_flags & TCPHDR_SYNACK) == TCPHDR_SYNACK)
+		return synack_opt_len(skops);
+
+	if (tcp_flags & TCPHDR_SYN)
+		return syn_opt_len(skops);
+
+	if (tcp_flags & TCPHDR_FIN)
+		return fin_opt_len(skops);
+
+	if (skops_current_mss(skops))
+		/* The kernel is calculating the MSS */
+		return current_mss_opt_len(skops);
+
+	if (skops->skb_len)
+		return data_opt_len(skops);
+
+	return nodata_opt_len(skops);
+}
+
+static int handle_write_hdr_opt(struct bpf_sock_ops *skops)
+{
+	__u8 tcp_flags = skops_tcp_flags(skops);
+	struct tcphdr *th;
+
+	if ((tcp_flags & TCPHDR_SYNACK) == TCPHDR_SYNACK)
+		return write_synack_opt(skops);
+
+	if (tcp_flags & TCPHDR_SYN)
+		return write_syn_opt(skops);
+
+	if (tcp_flags & TCPHDR_FIN)
+		return write_fin_opt(skops);
+
+	th = skops->skb_data;
+	if (th + 1 > skops->skb_data_end)
+		RET_CG_ERR(0);
+
+	if (skops->skb_len > tcp_hdrlen(th))
+		return write_data_opt(skops);
+
+	return write_nodata_opt(skops);
+}
+
+static int set_delack_max(struct bpf_sock_ops *skops, __u8 max_delack_ms)
+{
+	__u32 max_delack_us = max_delack_ms * 1000;
+
+	return bpf_setsockopt(skops, SOL_TCP, TCP_BPF_DELACK_MAX,
+			      &max_delack_us, sizeof(max_delack_us));
+}
+
+static int set_rto_min(struct bpf_sock_ops *skops, __u8 peer_max_delack_ms)
+{
+	__u32 min_rto_us = peer_max_delack_ms * 1000;
+
+	return bpf_setsockopt(skops, SOL_TCP, TCP_BPF_RTO_MIN, &min_rto_us,
+			      sizeof(min_rto_us));
+}
+
+static int handle_active_estab(struct bpf_sock_ops *skops)
+{
+	struct hdr_stg init_stg = {
+		.active = true,
+	};
+	int err;
+
+	err = load_option(skops, &active_estab_in, false);
+	if (err && err != -ENOMSG)
+		RET_CG_ERR(err);
+
+	init_stg.resend_syn = TEST_OPTION_FLAGS(active_estab_in.flags,
+						OPTION_RESEND);
+	if (!skops->sk || !bpf_sk_storage_get(&hdr_stg_map, skops->sk,
+					      &init_stg,
+					      BPF_SK_STORAGE_GET_F_CREATE))
+		RET_CG_ERR(0);
+
+	if (init_stg.resend_syn)
+		/* Don't clear the write_hdr cb now because
+		 * the ACK may get lost and retransmit may
+		 * be needed.
+		 *
+		 * PARSE_ALL_HDR cb flag is set to learn if this
+		 * resend_syn option has received by the peer.
+		 *
+		 * The header option will be resent until a valid
+		 * packet is received at handle_parse_hdr()
+		 * and all hdr cb flags will be cleared in
+		 * handle_parse_hdr().
+		 */
+		set_parse_all_hdr_cb_flags(skops);
+	else if (!active_fin_out.flags)
+		/* No options will be written from now */
+		clear_hdr_cb_flags(skops);
+
+	if (active_syn_out.max_delack_ms) {
+		err = set_delack_max(skops, active_syn_out.max_delack_ms);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	if (active_estab_in.max_delack_ms) {
+		err = set_rto_min(skops, active_estab_in.max_delack_ms);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int handle_passive_estab(struct bpf_sock_ops *skops)
+{
+	struct hdr_stg init_stg = {};
+	struct tcphdr *th;
+	int err;
+
+	inherit_cb_flags = skops->bpf_sock_ops_cb_flags;
+
+	err = load_option(skops, &passive_estab_in, true);
+	if (err == -ENOENT) {
+		/* saved_syn is not found. It was in syncookie mode.
+		 * We have asked the active side to resend the options
+		 * in ACK, so try to find the bpf_test_option from ACK now.
+		 */
+		err = load_option(skops, &passive_estab_in, false);
+		init_stg.syncookie = true;
+	}
+
+	/* ENOMSG: The bpf_test_option is not found which is fine.
+	 * Bail out now for all other errors.
+	 */
+	if (err && err != -ENOMSG)
+		RET_CG_ERR(err);
+
+	th = skops->skb_data;
+	if (th + 1 > skops->skb_data_end)
+		RET_CG_ERR(0);
+
+	if (th->syn) {
+		/* Fastopen */
+
+		/* Cannot clear cb_flags to stop write_hdr cb.
+		 * synack is not sent yet for fast open.
+		 * Even it was, the synack may need to be retransmitted.
+		 *
+		 * PARSE_ALL_HDR cb flag is set to learn
+		 * if synack has reached the peer.
+		 * All cb_flags will be cleared in handle_parse_hdr().
+		 */
+		set_parse_all_hdr_cb_flags(skops);
+		init_stg.fastopen = true;
+	} else if (!passive_fin_out.flags) {
+		/* No options will be written from now */
+		clear_hdr_cb_flags(skops);
+	}
+
+	if (!skops->sk ||
+	    !bpf_sk_storage_get(&hdr_stg_map, skops->sk, &init_stg,
+				BPF_SK_STORAGE_GET_F_CREATE))
+		RET_CG_ERR(0);
+
+	if (passive_synack_out.max_delack_ms) {
+		err = set_delack_max(skops, passive_synack_out.max_delack_ms);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	if (passive_estab_in.max_delack_ms) {
+		err = set_rto_min(skops, passive_estab_in.max_delack_ms);
+		if (err)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+static int handle_parse_hdr(struct bpf_sock_ops *skops)
+{
+	struct hdr_stg *hdr_stg;
+	struct tcphdr *th;
+
+	if (!skops->sk)
+		RET_CG_ERR(0);
+
+	th = skops->skb_data;
+	if (th + 1 > skops->skb_data_end)
+		RET_CG_ERR(0);
+
+	hdr_stg = bpf_sk_storage_get(&hdr_stg_map, skops->sk, NULL, 0);
+	if (!hdr_stg)
+		RET_CG_ERR(0);
+
+	if (hdr_stg->resend_syn || hdr_stg->fastopen)
+		/* The PARSE_ALL_HDR cb flag was turned on
+		 * to ensure that the previously written
+		 * options have reached the peer.
+		 * Those previously written option includes:
+		 *     - Active side: resend_syn in ACK during syncookie
+		 *      or
+		 *     - Passive side: SYNACK during fastopen
+		 *
+		 * A valid packet has been received here after
+		 * the 3WHS, so the PARSE_ALL_HDR cb flag
+		 * can be cleared now.
+		 */
+		clear_parse_all_hdr_cb_flags(skops);
+
+	if (hdr_stg->resend_syn && !active_fin_out.flags)
+		/* Active side resent the syn option in ACK
+		 * because the server was in syncookie mode.
+		 * A valid packet has been received, so
+		 * clear header cb flags if there is no
+		 * more option to send.
+		 */
+		clear_hdr_cb_flags(skops);
+
+	if (hdr_stg->fastopen && !passive_fin_out.flags)
+		/* Passive side was in fastopen.
+		 * A valid packet has been received, so
+		 * the SYNACK has reached the peer.
+		 * Clear header cb flags if there is no more
+		 * option to send.
+		 */
+		clear_hdr_cb_flags(skops);
+
+	if (th->fin) {
+		struct bpf_test_option *fin_opt;
+		int err;
+
+		if (hdr_stg->active)
+			fin_opt = &active_fin_in;
+		else
+			fin_opt = &passive_fin_in;
+
+		err = load_option(skops, fin_opt, false);
+		if (err && err != -ENOMSG)
+			RET_CG_ERR(err);
+	}
+
+	return CG_OK;
+}
+
+SEC("sockops")
+int estab(struct bpf_sock_ops *skops)
+{
+	int true_val = 1;
+
+	switch (skops->op) {
+	case BPF_SOCK_OPS_TCP_LISTEN_CB:
+		bpf_setsockopt(skops, SOL_TCP, TCP_SAVE_SYN,
+			       &true_val, sizeof(true_val));
+		set_hdr_cb_flags(skops, BPF_SOCK_OPS_STATE_CB_FLAG);
+		break;
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+		set_hdr_cb_flags(skops, 0);
+		break;
+	case BPF_SOCK_OPS_PARSE_HDR_OPT_CB:
+		return handle_parse_hdr(skops);
+	case BPF_SOCK_OPS_HDR_OPT_LEN_CB:
+		return handle_hdr_opt_len(skops);
+	case BPF_SOCK_OPS_WRITE_HDR_OPT_CB:
+		return handle_write_hdr_opt(skops);
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		return handle_passive_estab(skops);
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		return handle_active_estab(skops);
+	}
+
+	return CG_OK;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c
new file mode 100644
index 000000000000..6935f32eeb8f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcpbpf_kern.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "test_tcpbpf.h"
+
+struct tcpbpf_globals global = {};
+
+/**
+ * SOL_TCP is defined in <netinet/tcp.h> while
+ * TCP_SAVED_SYN is defined in already included <linux/tcp.h>
+ */
+#ifndef SOL_TCP
+#define SOL_TCP 6
+#endif
+
+static __always_inline int get_tp_window_clamp(struct bpf_sock_ops *skops)
+{
+	struct bpf_sock *sk;
+	struct tcp_sock *tp;
+
+	sk = skops->sk;
+	if (!sk)
+		return -1;
+	tp = bpf_skc_to_tcp_sock(sk);
+	if (!tp)
+		return -1;
+	return tp->window_clamp;
+}
+
+SEC("sockops")
+int bpf_testcb(struct bpf_sock_ops *skops)
+{
+	char header[sizeof(struct ipv6hdr) + sizeof(struct tcphdr)];
+	struct bpf_sock_ops *reuse = skops;
+	struct tcphdr *thdr;
+	int window_clamp = 9216;
+	int save_syn = 1;
+	int rv = -1;
+	int v = 0;
+	int op;
+
+	/* Test reading fields in bpf_sock_ops using single register */
+	asm volatile (
+		"%[reuse] = *(u32 *)(%[reuse] +96)"
+		: [reuse] "+r"(reuse)
+		:);
+
+	asm volatile (
+		"%[op] = *(u32 *)(%[skops] +96)"
+		: [op] "=r"(op)
+		: [skops] "r"(skops)
+		:);
+
+	asm volatile (
+		"r9 = %[skops];\n"
+		"r8 = *(u32 *)(r9 +164);\n"
+		"*(u32 *)(r9 +164) = r8;\n"
+		:: [skops] "r"(skops)
+		: "r9", "r8");
+
+	asm volatile (
+		"r1 = %[skops];\n"
+		"r1 = *(u64 *)(r1 +184);\n"
+		"if r1 == 0 goto +1;\n"
+		"r1 = *(u32 *)(r1 +4);\n"
+		:: [skops] "r"(skops):"r1");
+
+	asm volatile (
+		"r9 = %[skops];\n"
+		"r9 = *(u64 *)(r9 +184);\n"
+		"if r9 == 0 goto +1;\n"
+		"r9 = *(u32 *)(r9 +4);\n"
+		:: [skops] "r"(skops):"r9");
+
+	asm volatile (
+		"r1 = %[skops];\n"
+		"r2 = *(u64 *)(r1 +184);\n"
+		"if r2 == 0 goto +1;\n"
+		"r2 = *(u32 *)(r2 +4);\n"
+		:: [skops] "r"(skops):"r1", "r2");
+
+	op = (int) skops->op;
+
+	global.event_map |= (1 << op);
+
+	switch (op) {
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+		rv = bpf_setsockopt(skops, SOL_TCP, TCP_WINDOW_CLAMP,
+				    &window_clamp, sizeof(window_clamp));
+		global.window_clamp_client = get_tp_window_clamp(skops);
+		break;
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+		/* Test failure to set largest cb flag (assumes not defined) */
+		global.bad_cb_test_rv = bpf_sock_ops_cb_flags_set(skops, 0x80);
+		/* Set callback */
+		global.good_cb_test_rv = bpf_sock_ops_cb_flags_set(skops,
+						 BPF_SOCK_OPS_STATE_CB_FLAG);
+		break;
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		skops->sk_txhash = 0x12345f;
+		v = 0xff;
+		rv = bpf_setsockopt(skops, SOL_IPV6, IPV6_TCLASS, &v,
+				    sizeof(v));
+		if (skops->family == AF_INET6) {
+			v = bpf_getsockopt(skops, IPPROTO_TCP, TCP_SAVED_SYN,
+					   header, (sizeof(struct ipv6hdr) +
+						    sizeof(struct tcphdr)));
+			if (!v) {
+				int offset = sizeof(struct ipv6hdr);
+
+				thdr = (struct tcphdr *)(header + offset);
+				v = thdr->syn;
+
+				global.tcp_saved_syn = v;
+			}
+		}
+		rv = bpf_setsockopt(skops, SOL_TCP, TCP_WINDOW_CLAMP,
+				    &window_clamp, sizeof(window_clamp));
+
+		global.window_clamp_server = get_tp_window_clamp(skops);
+		break;
+	case BPF_SOCK_OPS_RTO_CB:
+		break;
+	case BPF_SOCK_OPS_RETRANS_CB:
+		break;
+	case BPF_SOCK_OPS_STATE_CB:
+		if (skops->args[1] == BPF_TCP_CLOSE) {
+			if (skops->args[0] == BPF_TCP_LISTEN) {
+				global.num_listen++;
+			} else {
+				global.total_retrans = skops->total_retrans;
+				global.data_segs_in = skops->data_segs_in;
+				global.data_segs_out = skops->data_segs_out;
+				global.bytes_received = skops->bytes_received;
+				global.bytes_acked = skops->bytes_acked;
+			}
+			global.num_close_events++;
+		}
+		break;
+	case BPF_SOCK_OPS_TCP_LISTEN_CB:
+		bpf_sock_ops_cb_flags_set(skops, BPF_SOCK_OPS_STATE_CB_FLAG);
+		v = bpf_setsockopt(skops, IPPROTO_TCP, TCP_SAVE_SYN,
+				   &save_syn, sizeof(save_syn));
+		/* Update global map w/ result of setsock opt */
+		global.tcp_save_syn = v;
+		break;
+	default:
+		rv = -1;
+	}
+	skops->reply = rv;
+	return 1;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c b/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c
new file mode 100644
index 000000000000..ef00d38b0a8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tcpnotify_kern.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stddef.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/types.h>
+#include <linux/socket.h>
+#include <linux/tcp.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "test_tcpnotify.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 4);
+	__type(key, __u32);
+	__type(value, struct tcpnotify_globals);
+} global_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, int);
+	__type(value, __u32);
+} perf_event_map SEC(".maps");
+
+SEC("sockops")
+int bpf_testcb(struct bpf_sock_ops *skops)
+{
+	int rv = -1;
+	int op;
+
+	op = (int) skops->op;
+
+	if (bpf_ntohl(skops->remote_port) != TESTPORT) {
+		skops->reply = -1;
+		return 0;
+	}
+
+	switch (op) {
+	case BPF_SOCK_OPS_TIMEOUT_INIT:
+	case BPF_SOCK_OPS_RWND_INIT:
+	case BPF_SOCK_OPS_NEEDS_ECN:
+	case BPF_SOCK_OPS_BASE_RTT:
+	case BPF_SOCK_OPS_RTO_CB:
+		rv = 1;
+		break;
+
+	case BPF_SOCK_OPS_TCP_CONNECT_CB:
+	case BPF_SOCK_OPS_TCP_LISTEN_CB:
+	case BPF_SOCK_OPS_ACTIVE_ESTABLISHED_CB:
+	case BPF_SOCK_OPS_PASSIVE_ESTABLISHED_CB:
+		bpf_sock_ops_cb_flags_set(skops, (BPF_SOCK_OPS_RETRANS_CB_FLAG|
+					  BPF_SOCK_OPS_RTO_CB_FLAG));
+		rv = 1;
+		break;
+	case BPF_SOCK_OPS_RETRANS_CB: {
+			__u32 key = 0;
+			struct tcpnotify_globals g, *gp;
+			struct tcp_notifier msg = {
+				.type = 0xde,
+				.subtype = 0xad,
+				.source = 0xbe,
+				.hash = 0xef,
+			};
+
+			rv = 1;
+
+			/* Update results */
+			gp = bpf_map_lookup_elem(&global_map, &key);
+			if (!gp)
+				break;
+			g = *gp;
+			g.total_retrans = skops->total_retrans;
+			g.ncalls++;
+			bpf_map_update_elem(&global_map, &key, &g,
+					    BPF_ANY);
+			bpf_perf_event_output(skops, &perf_event_map,
+					      BPF_F_CURRENT_CPU,
+					      &msg, sizeof(msg));
+		}
+		break;
+	default:
+		rv = -1;
+	}
+	skops->reply = rv;
+	return 1;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_time_tai.c b/tools/testing/selftests/bpf/progs/test_time_tai.c
new file mode 100644
index 000000000000..7ea0863f3ddb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_time_tai.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2022 Linutronix GmbH */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("tc")
+int time_tai(struct __sk_buff *skb)
+{
+	__u64 ts1, ts2;
+
+	/* Get TAI timestamps */
+	ts1 = bpf_ktime_get_tai_ns();
+	ts2 = bpf_ktime_get_tai_ns();
+
+	/* Save TAI timestamps (Note: skb->hwtstamp is read-only) */
+	skb->tstamp = ts1;
+	skb->cb[0] = ts2 & 0xffffffff;
+	skb->cb[1] = ts2 >> 32;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_tp_btf_nullable.c b/tools/testing/selftests/bpf/progs/test_tp_btf_nullable.c
new file mode 100644
index 000000000000..cf0547a613ff
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tp_btf_nullable.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "../test_kmods/bpf_testmod.h"
+#include "bpf_misc.h"
+
+SEC("tp_btf/bpf_testmod_test_nullable_bare_tp")
+__failure __msg("R1 invalid mem access 'trusted_ptr_or_null_'")
+int BPF_PROG(handle_tp_btf_nullable_bare1, struct bpf_testmod_test_read_ctx *nullable_ctx)
+{
+	return nullable_ctx->len;
+}
+
+SEC("tp_btf/bpf_testmod_test_nullable_bare_tp")
+int BPF_PROG(handle_tp_btf_nullable_bare2, struct bpf_testmod_test_read_ctx *nullable_ctx)
+{
+	if (nullable_ctx)
+		return nullable_ctx->len;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_trace_ext.c b/tools/testing/selftests/bpf/progs/test_trace_ext.c
new file mode 100644
index 000000000000..d19a634d0e78
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_trace_ext.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+
+__u64 ext_called = 0;
+
+SEC("freplace/test_pkt_md_access")
+int test_pkt_md_access_new(struct __sk_buff *skb)
+{
+	ext_called = skb->len;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_trace_ext_tracing.c b/tools/testing/selftests/bpf/progs/test_trace_ext_tracing.c
new file mode 100644
index 000000000000..52f3baf98f20
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_trace_ext_tracing.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+__u64 fentry_called = 0;
+
+SEC("fentry/test_pkt_md_access_new")
+int BPF_PROG(fentry, struct sk_buff *skb)
+{
+	fentry_called = skb->len;
+	return 0;
+}
+
+__u64 fexit_called = 0;
+
+SEC("fexit/test_pkt_md_access_new")
+int BPF_PROG(fexit, struct sk_buff *skb)
+{
+	fexit_called = skb->len;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tracepoint.c b/tools/testing/selftests/bpf/progs/test_tracepoint.c
new file mode 100644
index 000000000000..4cb8bbb6a320
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tracepoint.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+/* taken from /sys/kernel/tracing/events/sched/sched_switch/format */
+struct sched_switch_args {
+	unsigned long long pad;
+	char prev_comm[TASK_COMM_LEN];
+	int prev_pid;
+	int prev_prio;
+	long long prev_state;
+	char next_comm[TASK_COMM_LEN];
+	int next_pid;
+	int next_prio;
+};
+
+SEC("tracepoint/sched/sched_switch")
+int oncpu(struct sched_switch_args *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_trampoline_count.c b/tools/testing/selftests/bpf/progs/test_trampoline_count.c
new file mode 100644
index 000000000000..7765720da7d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_trampoline_count.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+SEC("fentry/bpf_modify_return_test")
+int BPF_PROG(fentry_test, int a, int *b)
+{
+	return 0;
+}
+
+SEC("fmod_ret/bpf_modify_return_test")
+int BPF_PROG(fmod_ret_test, int a, int *b, int ret)
+{
+	return 0;
+}
+
+SEC("fexit/bpf_modify_return_test")
+int BPF_PROG(fexit_test, int a, int *b, int ret)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
new file mode 100644
index 000000000000..32127f1cd687
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
@@ -0,0 +1,1026 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2016 VMware
+ * Copyright (c) 2016 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#include "vmlinux.h"
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_kfuncs.h"
+#include "bpf_tracing_net.h"
+
+#define log_err(__ret) bpf_printk("ERROR line:%d ret:%d\n", __LINE__, __ret)
+
+#define VXLAN_UDP_PORT		4789
+#define ETH_P_IP		0x0800
+#define PACKET_HOST		0
+#define TUNNEL_CSUM		bpf_htons(0x01)
+#define TUNNEL_KEY		bpf_htons(0x04)
+
+/* Only IPv4 address assigned to veth1.
+ * 172.16.1.200
+ */
+#define ASSIGNED_ADDR_VETH1 0xac1001c8
+
+struct bpf_fou_encap___local {
+	__be16 sport;
+	__be16 dport;
+} __attribute__((preserve_access_index));
+
+enum bpf_fou_encap_type___local {
+	FOU_BPF_ENCAP_FOU___local,
+	FOU_BPF_ENCAP_GUE___local,
+};
+
+struct bpf_fou_encap;
+
+int bpf_skb_set_fou_encap(struct __sk_buff *skb_ctx,
+			  struct bpf_fou_encap *encap, int type) __ksym;
+int bpf_skb_get_fou_encap(struct __sk_buff *skb_ctx,
+			  struct bpf_fou_encap *encap) __ksym;
+struct xfrm_state *
+bpf_xdp_get_xfrm_state(struct xdp_md *ctx, struct bpf_xfrm_state_opts *opts,
+		       u32 opts__sz) __ksym;
+void bpf_xdp_xfrm_state_release(struct xfrm_state *x) __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} local_ip_map SEC(".maps");
+
+SEC("tc")
+int gre_set_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX | BPF_F_SEQ_NUMBER);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int gre_set_tunnel_no_key(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX | BPF_F_SEQ_NUMBER |
+				     BPF_F_NO_TUNNEL_KEY);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int gre_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("key %d remote ip 0x%x\n", key.tunnel_id, key.remote_ipv4);
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6gretap_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	int ret;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+	key.tunnel_label = 0xabcde;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6 | BPF_F_ZERO_CSUM_TX |
+				     BPF_F_SEQ_NUMBER);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6gretap_get_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	int ret;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("key %d remote ip6 ::%x label %x\n",
+		   key.tunnel_id, key.remote_ipv6[3], key.tunnel_label);
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int erspan_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct erspan_metadata md;
+	int ret;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&md, 0, sizeof(md));
+#ifdef ERSPAN_V1
+	md.version = 1;
+	md.u.index = bpf_htonl(123);
+#else
+	__u8 direction = 1;
+	__u8 hwid = 7;
+
+	md.version = 2;
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, dir, direction);
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, hwid, (hwid & 0xf));
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, hwid_upper, (hwid >> 4) & 0x3);
+#endif
+
+	ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int erspan_get_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct erspan_metadata md;
+	int ret;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("key %d remote ip 0x%x erspan version %d\n",
+		   key.tunnel_id, key.remote_ipv4, md.version);
+
+#ifdef ERSPAN_V1
+	index = bpf_ntohl(md.u.index);
+	bpf_printk("\tindex %x\n", index);
+#else
+	bpf_printk("\tdirection %d hwid %x timestamp %u\n",
+		   BPF_CORE_READ_BITFIELD(&md.u.md2, dir),
+		   (BPF_CORE_READ_BITFIELD(&md.u.md2, hwid_upper) << 4) +
+		   BPF_CORE_READ_BITFIELD(&md.u.md2, hwid),
+		   bpf_ntohl(md.u.md2.timestamp));
+#endif
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip4ip6erspan_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct erspan_metadata md;
+	int ret;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv6[3] = bpf_htonl(0x11);
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&md, 0, sizeof(md));
+
+#ifdef ERSPAN_V1
+	md.u.index = bpf_htonl(123);
+	md.version = 1;
+#else
+	__u8 direction = 0;
+	__u8 hwid = 17;
+
+	md.version = 2;
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, dir, direction);
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, hwid, (hwid & 0xf));
+	BPF_CORE_WRITE_BITFIELD(&md.u.md2, hwid_upper, (hwid >> 4) & 0x3);
+#endif
+
+	ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip4ip6erspan_get_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct erspan_metadata md;
+	int ret;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("ip6erspan get key %d remote ip6 ::%x erspan version %d\n",
+		   key.tunnel_id, key.remote_ipv4, md.version);
+
+#ifdef ERSPAN_V1
+	index = bpf_ntohl(md.u.index);
+	bpf_printk("\tindex %x\n", index);
+#else
+	bpf_printk("\tdirection %d hwid %x timestamp %u\n",
+		   BPF_CORE_READ_BITFIELD(&md.u.md2, dir),
+		   (BPF_CORE_READ_BITFIELD(&md.u.md2, hwid_upper) << 4) +
+		   BPF_CORE_READ_BITFIELD(&md.u.md2, hwid),
+		   bpf_ntohl(md.u.md2.timestamp));
+#endif
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int vxlan_set_tunnel_dst(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct vxlan_metadata md;
+	__u32 index = 0;
+	__u32 *local_ip = NULL;
+	int ret = 0;
+
+	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+	if (!local_ip) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.local_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.remote_ipv4 = *local_ip;
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	md.gbp = 0x800FF; /* Set VXLAN Group Policy extension */
+	ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int vxlan_set_tunnel_src(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct vxlan_metadata md;
+	__u32 index = 0;
+	__u32 *local_ip = NULL;
+	int ret = 0;
+
+	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+	if (!local_ip) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.local_ipv4 = *local_ip;
+	key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	md.gbp = 0x800FF; /* Set VXLAN Group Policy extension */
+	ret = bpf_skb_set_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int vxlan_get_tunnel_src(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+	struct vxlan_metadata md;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_FLAGS);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_opt(skb, &md, sizeof(md));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	if (key.local_ipv4 != ASSIGNED_ADDR_VETH1 || md.gbp != 0x800FF ||
+	    !(key.tunnel_flags & TUNNEL_KEY) ||
+	    (key.tunnel_flags & TUNNEL_CSUM)) {
+		bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x flags 0x%x\n",
+			   key.tunnel_id, key.local_ipv4,
+			   key.remote_ipv4, md.gbp,
+			   bpf_ntohs(key.tunnel_flags));
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int veth_set_outer_dst(struct __sk_buff *skb)
+{
+	struct ethhdr *eth = (struct ethhdr *)(long)skb->data;
+	__u32 assigned_ip = bpf_htonl(ASSIGNED_ADDR_VETH1);
+	void *data_end = (void *)(long)skb->data_end;
+	struct udphdr *udph;
+	struct iphdr *iph;
+	int ret = 0;
+	__s64 csum;
+
+	if ((void *)eth + sizeof(*eth) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	if (eth->h_proto != bpf_htons(ETH_P_IP))
+		return TC_ACT_OK;
+
+	iph = (struct iphdr *)(eth + 1);
+	if ((void *)iph + sizeof(*iph) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+	if (iph->protocol != IPPROTO_UDP)
+		return TC_ACT_OK;
+
+	udph = (struct udphdr *)(iph + 1);
+	if ((void *)udph + sizeof(*udph) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+	if (udph->dest != bpf_htons(VXLAN_UDP_PORT))
+		return TC_ACT_OK;
+
+	if (iph->daddr != assigned_ip) {
+		csum = bpf_csum_diff(&iph->daddr, sizeof(__u32), &assigned_ip,
+				     sizeof(__u32), 0);
+		if (bpf_skb_store_bytes(skb, ETH_HLEN + offsetof(struct iphdr, daddr),
+					&assigned_ip, sizeof(__u32), 0) < 0) {
+			log_err(ret);
+			return TC_ACT_SHOT;
+		}
+		if (bpf_l3_csum_replace(skb, ETH_HLEN + offsetof(struct iphdr, check),
+					0, csum, 0) < 0) {
+			log_err(ret);
+			return TC_ACT_SHOT;
+		}
+		bpf_skb_change_type(skb, PACKET_HOST);
+	}
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6vxlan_set_tunnel_dst(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	__u32 index = 0;
+	__u32 *local_ip;
+	int ret = 0;
+
+	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+	if (!local_ip) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.local_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	key.remote_ipv6[3] = bpf_htonl(*local_ip);
+	key.tunnel_id = 22;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6vxlan_set_tunnel_src(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	__u32 index = 0;
+	__u32 *local_ip;
+	int ret = 0;
+
+	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+	if (!local_ip) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.local_ipv6[3] = bpf_htonl(*local_ip);
+	key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	key.tunnel_id = 22;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6vxlan_get_tunnel_src(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	__u32 index = 0;
+	__u32 *local_ip;
+	int ret = 0;
+
+	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
+	if (!local_ip) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6 | BPF_F_TUNINFO_FLAGS);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_ntohl(key.local_ipv6[3]) != *local_ip ||
+	    !(key.tunnel_flags & TUNNEL_KEY) ||
+	    !(key.tunnel_flags & TUNNEL_CSUM)) {
+		bpf_printk("ip6vxlan key %d local ip6 ::%x remote ip6 ::%x label 0x%x flags 0x%x\n",
+			   key.tunnel_id, bpf_ntohl(key.local_ipv6[3]),
+			   bpf_ntohl(key.remote_ipv6[3]), key.tunnel_label,
+			   bpf_ntohs(key.tunnel_flags));
+		bpf_printk("local_ip 0x%x\n", *local_ip);
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+struct local_geneve_opt {
+	struct geneve_opt gopt;
+	int data;
+};
+
+SEC("tc")
+int geneve_set_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+	struct local_geneve_opt local_gopt;
+	struct geneve_opt *gopt = (struct geneve_opt *) &local_gopt;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	key.tunnel_id = 2;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	__builtin_memset(gopt, 0x0, sizeof(local_gopt));
+	gopt->opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */
+	gopt->type = 0x08;
+	gopt->r1 = 0;
+	gopt->r2 = 0;
+	gopt->r3 = 0;
+	gopt->length = 2; /* 4-byte multiple */
+	*(int *) &gopt->opt_data = bpf_htonl(0xdeadbeef);
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_ZERO_CSUM_TX);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_set_tunnel_opt(skb, gopt, sizeof(local_gopt));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int geneve_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+	struct geneve_opt gopt;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_opt(skb, &gopt, sizeof(gopt));
+	if (ret < 0)
+		gopt.opt_class = 0;
+
+	bpf_printk("key %d remote ip 0x%x geneve class 0x%x\n",
+		   key.tunnel_id, key.remote_ipv4, gopt.opt_class);
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6geneve_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct local_geneve_opt local_gopt;
+	struct geneve_opt *gopt = (struct geneve_opt *) &local_gopt;
+	int ret;
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	key.tunnel_id = 22;
+	key.tunnel_tos = 0;
+	key.tunnel_ttl = 64;
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(gopt, 0x0, sizeof(local_gopt));
+	gopt->opt_class = bpf_htons(0x102); /* Open Virtual Networking (OVN) */
+	gopt->type = 0x08;
+	gopt->r1 = 0;
+	gopt->r2 = 0;
+	gopt->r3 = 0;
+	gopt->length = 2; /* 4-byte multiple */
+	*(int *) &gopt->opt_data = bpf_htonl(0xfeedbeef);
+
+	ret = bpf_skb_set_tunnel_opt(skb, gopt, sizeof(gopt));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6geneve_get_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key;
+	struct geneve_opt gopt;
+	int ret;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_tunnel_opt(skb, &gopt, sizeof(gopt));
+	if (ret < 0)
+		gopt.opt_class = 0;
+
+	bpf_printk("key %d remote ip 0x%x geneve class 0x%x\n",
+		   key.tunnel_id, key.remote_ipv4, gopt.opt_class);
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key = {};
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph = data;
+	void *data_end = (void *)(long)skb->data_end;
+	int ret;
+
+	/* single length check */
+	if (data + sizeof(*iph) > data_end) {
+		log_err(1);
+		return TC_ACT_SHOT;
+	}
+
+	key.tunnel_ttl = 64;
+	if (iph->protocol == IPPROTO_ICMP) {
+		key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+	}
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("remote ip 0x%x\n", key.remote_ipv4);
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip_gue_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key = {};
+	struct bpf_fou_encap___local encap = {};
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph = data;
+	void *data_end = (void *)(long)skb->data_end;
+	int ret;
+
+	if (data + sizeof(*iph) > data_end) {
+		log_err(1);
+		return TC_ACT_SHOT;
+	}
+
+	key.tunnel_ttl = 64;
+	if (iph->protocol == IPPROTO_ICMP)
+		key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	encap.sport = 0;
+	encap.dport = bpf_htons(5555);
+
+	ret = bpf_skb_set_fou_encap(skb, (struct bpf_fou_encap *)&encap,
+				    bpf_core_enum_value(enum bpf_fou_encap_type___local,
+							FOU_BPF_ENCAP_GUE___local));
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip_fou_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key = {};
+	struct bpf_fou_encap___local encap = {};
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph = data;
+	void *data_end = (void *)(long)skb->data_end;
+	int ret;
+
+	if (data + sizeof(*iph) > data_end) {
+		log_err(1);
+		return TC_ACT_SHOT;
+	}
+
+	key.tunnel_ttl = 64;
+	if (iph->protocol == IPPROTO_ICMP)
+		key.remote_ipv4 = 0xac100164; /* 172.16.1.100 */
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	encap.sport = 0;
+	encap.dport = bpf_htons(5555);
+
+	ret = bpf_skb_set_fou_encap(skb, (struct bpf_fou_encap *)&encap,
+				    FOU_BPF_ENCAP_FOU___local);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip_encap_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key = {};
+	struct bpf_fou_encap___local encap = {};
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	ret = bpf_skb_get_fou_encap(skb, (struct bpf_fou_encap *)&encap);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	if (bpf_ntohs(encap.dport) != 5555)
+		return TC_ACT_SHOT;
+
+	bpf_printk("%d remote ip 0x%x, sport %d, dport %d\n", ret,
+		   key.remote_ipv4, bpf_ntohs(encap.sport),
+		   bpf_ntohs(encap.dport));
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip6_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key = {};
+	void *data = (void *)(long)skb->data;
+	struct iphdr *iph = data;
+	void *data_end = (void *)(long)skb->data_end;
+	int ret;
+
+	/* single length check */
+	if (data + sizeof(*iph) > data_end) {
+		log_err(1);
+		return TC_ACT_SHOT;
+	}
+
+	__builtin_memset(&key, 0x0, sizeof(key));
+	key.tunnel_ttl = 64;
+	if (iph->protocol == IPPROTO_ICMP) {
+		key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	}
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ipip6_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("remote ip6 %x::%x\n", bpf_htonl(key.remote_ipv6[0]),
+		   bpf_htonl(key.remote_ipv6[3]));
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6ip6_set_tunnel(struct __sk_buff *skb)
+{
+	struct bpf_tunnel_key key = {};
+	void *data = (void *)(long)skb->data;
+	struct ipv6hdr *iph = data;
+	void *data_end = (void *)(long)skb->data_end;
+	int ret;
+
+	/* single length check */
+	if (data + sizeof(*iph) > data_end) {
+		log_err(1);
+		return TC_ACT_SHOT;
+	}
+
+	key.tunnel_ttl = 64;
+	if (iph->nexthdr == 58 /* NEXTHDR_ICMP */) {
+		key.remote_ipv6[3] = bpf_htonl(0x11); /* ::11 */
+	}
+
+	ret = bpf_skb_set_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	return TC_ACT_OK;
+}
+
+SEC("tc")
+int ip6ip6_get_tunnel(struct __sk_buff *skb)
+{
+	int ret;
+	struct bpf_tunnel_key key;
+
+	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key),
+				     BPF_F_TUNINFO_IPV6);
+	if (ret < 0) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	bpf_printk("remote ip6 %x::%x\n", bpf_htonl(key.remote_ipv6[0]),
+		   bpf_htonl(key.remote_ipv6[3]));
+	return TC_ACT_OK;
+}
+
+volatile int xfrm_reqid = 0;
+volatile int xfrm_spi = 0;
+volatile int xfrm_remote_ip = 0;
+
+SEC("tc")
+int xfrm_get_state(struct __sk_buff *skb)
+{
+	struct bpf_xfrm_state x;
+	int ret;
+
+	ret = bpf_skb_get_xfrm_state(skb, 0, &x, sizeof(x), 0);
+	if (ret < 0)
+		return TC_ACT_OK;
+
+	xfrm_reqid = x.reqid;
+	xfrm_spi = bpf_ntohl(x.spi);
+	xfrm_remote_ip = bpf_ntohl(x.remote_ipv4);
+
+	return TC_ACT_OK;
+}
+
+volatile int xfrm_replay_window = 0;
+
+SEC("xdp")
+int xfrm_get_state_xdp(struct xdp_md *xdp)
+{
+	struct bpf_xfrm_state_opts opts = {};
+	struct xfrm_state *x = NULL;
+	struct ip_esp_hdr *esph;
+	struct bpf_dynptr ptr;
+	u8 esph_buf[8] = {};
+	u8 iph_buf[20] = {};
+	struct iphdr *iph;
+	u32 off;
+
+	if (bpf_dynptr_from_xdp(xdp, 0, &ptr))
+		goto out;
+
+	off = sizeof(struct ethhdr);
+	iph = bpf_dynptr_slice(&ptr, off, iph_buf, sizeof(iph_buf));
+	if (!iph || iph->protocol != IPPROTO_ESP)
+		goto out;
+
+	off += sizeof(struct iphdr);
+	esph = bpf_dynptr_slice(&ptr, off, esph_buf, sizeof(esph_buf));
+	if (!esph)
+		goto out;
+
+	opts.netns_id = BPF_F_CURRENT_NETNS;
+	opts.daddr.a4 = iph->daddr;
+	opts.spi = esph->spi;
+	opts.proto = IPPROTO_ESP;
+	opts.family = AF_INET;
+
+	x = bpf_xdp_get_xfrm_state(xdp, &opts, sizeof(opts));
+	if (!x)
+		goto out;
+
+	if (!x->replay_esn)
+		goto out;
+
+	xfrm_replay_window = x->replay_esn->replay_window;
+out:
+	if (x)
+		bpf_xdp_xfrm_state_release(x);
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_unpriv_bpf_disabled.c b/tools/testing/selftests/bpf/progs/test_unpriv_bpf_disabled.c
new file mode 100644
index 000000000000..fc423e43a3cd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_unpriv_bpf_disabled.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+__u32 perfbuf_val = 0;
+__u32 ringbuf_val = 0;
+
+int test_pid;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} percpu_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_HASH);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} percpu_hash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+} perfbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 1 << 12);
+} ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} prog_array SEC(".maps");
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int sys_nanosleep_enter(void *ctx)
+{
+	int cur_pid;
+
+	cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (cur_pid != test_pid)
+		return 0;
+
+	bpf_perf_event_output(ctx, &perfbuf, BPF_F_CURRENT_CPU, &perfbuf_val, sizeof(perfbuf_val));
+	bpf_ringbuf_output(&ringbuf, &ringbuf_val, sizeof(ringbuf_val), 0);
+
+	return 0;
+}
+
+SEC("perf_event")
+int handle_perf_event(void *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_uprobe.c b/tools/testing/selftests/bpf/progs/test_uprobe.c
new file mode 100644
index 000000000000..12f4065fca20
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_uprobe.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Hengqi Chen */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+pid_t my_pid = 0;
+
+int test1_result = 0;
+int test2_result = 0;
+int test3_result = 0;
+int test4_result = 0;
+
+SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset")
+int BPF_UPROBE(test1)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	test1_result = 1;
+	return 0;
+}
+
+SEC("uprobe/./liburandom_read.so:urandlib_api_sameoffset@LIBURANDOM_READ_1.0.0")
+int BPF_UPROBE(test2)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	test2_result = 1;
+	return 0;
+}
+
+SEC("uretprobe/./liburandom_read.so:urandlib_api_sameoffset@@LIBURANDOM_READ_2.0.0")
+int BPF_URETPROBE(test3, int ret)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	test3_result = ret;
+	return 0;
+}
+
+SEC("uprobe")
+int BPF_UPROBE(test4)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	test4_result = 1;
+	return 0;
+}
+
+#if defined(__TARGET_ARCH_x86)
+struct pt_regs regs;
+
+SEC("uprobe")
+int BPF_UPROBE(test_regs_change)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	ctx->ax  = regs.ax;
+	ctx->cx  = regs.cx;
+	ctx->dx  = regs.dx;
+	ctx->r8  = regs.r8;
+	ctx->r9  = regs.r9;
+	ctx->r10 = regs.r10;
+	ctx->r11 = regs.r11;
+	ctx->di  = regs.di;
+	ctx->si  = regs.si;
+	return 0;
+}
+
+unsigned long ip;
+
+SEC("uprobe")
+int BPF_UPROBE(test_regs_change_ip)
+{
+	pid_t pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid != my_pid)
+		return 0;
+
+	ctx->ip = ip;
+	return 0;
+}
+#endif
diff --git a/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c b/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c
new file mode 100644
index 000000000000..da4bf89d004c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_uprobe_autoattach.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_core_read.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+int uprobe_byname_parm1 = 0;
+int uprobe_byname_ran = 0;
+int uretprobe_byname_rc = 0;
+int uretprobe_byname_ret = 0;
+int uretprobe_byname_ran = 0;
+u64 uprobe_byname2_parm1 = 0;
+int uprobe_byname2_ran = 0;
+u64 uretprobe_byname2_rc = 0;
+int uretprobe_byname2_ran = 0;
+
+int test_pid;
+
+int a[8];
+
+/* This program cannot auto-attach, but that should not stop other
+ * programs from attaching.
+ */
+SEC("uprobe")
+int handle_uprobe_noautoattach(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("uprobe//proc/self/exe:autoattach_trigger_func")
+int BPF_UPROBE(handle_uprobe_byname
+	       , int arg1
+	       , int arg2
+	       , int arg3
+#if FUNC_REG_ARG_CNT > 3
+	       , int arg4
+#endif
+#if FUNC_REG_ARG_CNT > 4
+	       , int arg5
+#endif
+#if FUNC_REG_ARG_CNT > 5
+	       , int arg6
+#endif
+#if FUNC_REG_ARG_CNT > 6
+	       , int arg7
+#endif
+#if FUNC_REG_ARG_CNT > 7
+	       , int arg8
+#endif
+)
+{
+	uprobe_byname_parm1 = PT_REGS_PARM1_CORE(ctx);
+	uprobe_byname_ran = 1;
+
+	a[0] = arg1;
+	a[1] = arg2;
+	a[2] = arg3;
+#if FUNC_REG_ARG_CNT > 3
+	a[3] = arg4;
+#endif
+#if FUNC_REG_ARG_CNT > 4
+	a[4] = arg5;
+#endif
+#if FUNC_REG_ARG_CNT > 5
+	a[5] = arg6;
+#endif
+#if FUNC_REG_ARG_CNT > 6
+	a[6] = arg7;
+#endif
+#if FUNC_REG_ARG_CNT > 7
+	a[7] = arg8;
+#endif
+	return 0;
+}
+
+SEC("uretprobe//proc/self/exe:autoattach_trigger_func")
+int BPF_URETPROBE(handle_uretprobe_byname, int ret)
+{
+	uretprobe_byname_rc = PT_REGS_RC_CORE(ctx);
+	uretprobe_byname_ret = ret;
+	uretprobe_byname_ran = 2;
+
+	return 0;
+}
+
+
+SEC("uprobe/libc.so.6:fopen")
+int BPF_UPROBE(handle_uprobe_byname2, const char *pathname, const char *mode)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid)
+		return 0;
+	uprobe_byname2_parm1 = (u64)(long)pathname;
+	uprobe_byname2_ran = 3;
+	return 0;
+}
+
+SEC("uretprobe/libc.so.6:fopen")
+int BPF_URETPROBE(handle_uretprobe_byname2, void *ret)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid)
+		return 0;
+	uretprobe_byname2_rc = (u64)(long)ret;
+	uretprobe_byname2_ran = 4;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_urandom_usdt.c b/tools/testing/selftests/bpf/progs/test_urandom_usdt.c
new file mode 100644
index 000000000000..3539b02bd5f7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_urandom_usdt.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/usdt.bpf.h>
+
+int urand_pid;
+
+int urand_read_without_sema_call_cnt;
+int urand_read_without_sema_buf_sz_sum;
+
+SEC("usdt/./urandom_read:urand:read_without_sema")
+int BPF_USDT(urand_read_without_sema, int iter_num, int iter_cnt, int buf_sz)
+{
+	if (urand_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&urand_read_without_sema_call_cnt, 1);
+	__sync_fetch_and_add(&urand_read_without_sema_buf_sz_sum, buf_sz);
+
+	return 0;
+}
+
+int urand_read_with_sema_call_cnt;
+int urand_read_with_sema_buf_sz_sum;
+
+SEC("usdt/./urandom_read:urand:read_with_sema")
+int BPF_USDT(urand_read_with_sema, int iter_num, int iter_cnt, int buf_sz)
+{
+	if (urand_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&urand_read_with_sema_call_cnt, 1);
+	__sync_fetch_and_add(&urand_read_with_sema_buf_sz_sum, buf_sz);
+
+	return 0;
+}
+
+int urandlib_read_without_sema_call_cnt;
+int urandlib_read_without_sema_buf_sz_sum;
+
+SEC("usdt/./liburandom_read.so:urandlib:read_without_sema")
+int BPF_USDT(urandlib_read_without_sema, int iter_num, int iter_cnt, int buf_sz)
+{
+	if (urand_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&urandlib_read_without_sema_call_cnt, 1);
+	__sync_fetch_and_add(&urandlib_read_without_sema_buf_sz_sum, buf_sz);
+
+	return 0;
+}
+
+int urandlib_read_with_sema_call_cnt;
+int urandlib_read_with_sema_buf_sz_sum;
+
+SEC("usdt/./liburandom_read.so:urandlib:read_with_sema")
+int BPF_USDT(urandlib_read_with_sema, int iter_num, int iter_cnt, int buf_sz)
+{
+	if (urand_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&urandlib_read_with_sema_call_cnt, 1);
+	__sync_fetch_and_add(&urandlib_read_with_sema_buf_sz_sum, buf_sz);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_usdt.c b/tools/testing/selftests/bpf/progs/test_usdt.c
new file mode 100644
index 000000000000..a78c87537b07
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_usdt.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/usdt.bpf.h>
+
+int my_pid;
+
+int usdt0_called;
+u64 usdt0_cookie;
+int usdt0_arg_cnt;
+int usdt0_arg_ret;
+int usdt0_arg_size;
+
+SEC("usdt")
+int usdt0(struct pt_regs *ctx)
+{
+	long tmp;
+
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&usdt0_called, 1);
+
+	usdt0_cookie = bpf_usdt_cookie(ctx);
+	usdt0_arg_cnt = bpf_usdt_arg_cnt(ctx);
+	/* should return -ENOENT for any arg_num */
+	usdt0_arg_ret = bpf_usdt_arg(ctx, bpf_get_prandom_u32(), &tmp);
+	usdt0_arg_size = bpf_usdt_arg_size(ctx, bpf_get_prandom_u32());
+	return 0;
+}
+
+int usdt3_called;
+u64 usdt3_cookie;
+int usdt3_arg_cnt;
+int usdt3_arg_rets[3];
+u64 usdt3_args[3];
+int usdt3_arg_sizes[3];
+
+SEC("usdt//proc/self/exe:test:usdt3")
+int usdt3(struct pt_regs *ctx)
+{
+	long tmp;
+
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&usdt3_called, 1);
+
+	usdt3_cookie = bpf_usdt_cookie(ctx);
+	usdt3_arg_cnt = bpf_usdt_arg_cnt(ctx);
+
+	usdt3_arg_rets[0] = bpf_usdt_arg(ctx, 0, &tmp);
+	usdt3_args[0] = (int)tmp;
+	usdt3_arg_sizes[0] = bpf_usdt_arg_size(ctx, 0);
+
+	usdt3_arg_rets[1] = bpf_usdt_arg(ctx, 1, &tmp);
+	usdt3_args[1] = (long)tmp;
+	usdt3_arg_sizes[1] = bpf_usdt_arg_size(ctx, 1);
+
+	usdt3_arg_rets[2] = bpf_usdt_arg(ctx, 2, &tmp);
+	usdt3_args[2] = (uintptr_t)tmp;
+	usdt3_arg_sizes[2] = bpf_usdt_arg_size(ctx, 2);
+
+	return 0;
+}
+
+int usdt12_called;
+u64 usdt12_cookie;
+int usdt12_arg_cnt;
+u64 usdt12_args[12];
+int usdt12_arg_sizes[12];
+
+SEC("usdt//proc/self/exe:test:usdt12")
+int BPF_USDT(usdt12, int a1, int a2, long a3, long a4, unsigned a5,
+		     long a6, __u64 a7, uintptr_t a8, int a9, short a10,
+		     short a11, signed char a12)
+{
+	int i;
+
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&usdt12_called, 1);
+
+	usdt12_cookie = bpf_usdt_cookie(ctx);
+	usdt12_arg_cnt = bpf_usdt_arg_cnt(ctx);
+
+	usdt12_args[0] = a1;
+	usdt12_args[1] = a2;
+	usdt12_args[2] = a3;
+	usdt12_args[3] = a4;
+	usdt12_args[4] = a5;
+	usdt12_args[5] = a6;
+	usdt12_args[6] = a7;
+	usdt12_args[7] = a8;
+	usdt12_args[8] = a9;
+	usdt12_args[9] = a10;
+	usdt12_args[10] = a11;
+	usdt12_args[11] = a12;
+
+	bpf_for(i, 0, 12) {
+		usdt12_arg_sizes[i] = bpf_usdt_arg_size(ctx, i);
+	}
+
+	return 0;
+}
+
+int usdt_sib_called;
+u64 usdt_sib_cookie;
+int usdt_sib_arg_cnt;
+int usdt_sib_arg_ret;
+short usdt_sib_arg;
+int usdt_sib_arg_size;
+
+/*
+ * usdt_sib is only tested on x86-related architectures, so it requires
+ * manual attach since auto-attach will panic tests under other architectures
+ */
+SEC("usdt")
+int usdt_sib(struct pt_regs *ctx)
+{
+	long tmp;
+
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&usdt_sib_called, 1);
+
+	usdt_sib_cookie = bpf_usdt_cookie(ctx);
+	usdt_sib_arg_cnt = bpf_usdt_arg_cnt(ctx);
+
+	usdt_sib_arg_ret = bpf_usdt_arg(ctx, 0, &tmp);
+	usdt_sib_arg = (short)tmp;
+	usdt_sib_arg_size = bpf_usdt_arg_size(ctx, 0);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_usdt_multispec.c b/tools/testing/selftests/bpf/progs/test_usdt_multispec.c
new file mode 100644
index 000000000000..962f3462066a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_usdt_multispec.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/usdt.bpf.h>
+
+/* this file is linked together with test_usdt.c to validate that usdt.bpf.h
+ * can be included in multiple .bpf.c files forming single final BPF object
+ * file
+ */
+
+extern int my_pid;
+
+int usdt_100_called;
+int usdt_100_sum;
+
+SEC("usdt//proc/self/exe:test:usdt_100")
+int BPF_USDT(usdt_100, int x)
+{
+	if (my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+
+	__sync_fetch_and_add(&usdt_100_called, 1);
+	__sync_fetch_and_add(&usdt_100_sum, x);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_user_ringbuf.h b/tools/testing/selftests/bpf/progs/test_user_ringbuf.h
new file mode 100644
index 000000000000..1643b4d59ba7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_user_ringbuf.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _TEST_USER_RINGBUF_H
+#define _TEST_USER_RINGBUF_H
+
+#define TEST_OP_64 4
+#define TEST_OP_32 2
+
+enum test_msg_op {
+	TEST_MSG_OP_INC64,
+	TEST_MSG_OP_INC32,
+	TEST_MSG_OP_MUL64,
+	TEST_MSG_OP_MUL32,
+
+	// Must come last.
+	TEST_MSG_OP_NUM_OPS,
+};
+
+struct test_msg {
+	enum test_msg_op msg_op;
+	union {
+		__s64 operand_64;
+		__s32 operand_32;
+	};
+};
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+#endif /* _TEST_USER_RINGBUF_H */
diff --git a/tools/testing/selftests/bpf/progs/test_varlen.c b/tools/testing/selftests/bpf/progs/test_varlen.c
new file mode 100644
index 000000000000..20eb7d422c41
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_varlen.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+#define MAX_LEN 256
+
+char buf_in1[MAX_LEN] = {};
+char buf_in2[MAX_LEN] = {};
+
+int test_pid = 0;
+bool capture = false;
+
+/* .bss */
+__u64 payload1_len1 = 0;
+__u64 payload1_len2 = 0;
+__u64 total1 = 0;
+char payload1[MAX_LEN + MAX_LEN] = {};
+__u64 ret_bad_read = 0;
+
+/* .data */
+int payload2_len1 = -1;
+int payload2_len2 = -1;
+int total2 = -1;
+char payload2[MAX_LEN + MAX_LEN] = { 1 };
+
+int payload3_len1 = -1;
+int payload3_len2 = -1;
+int total3= -1;
+char payload3[MAX_LEN + MAX_LEN] = { 1 };
+
+int payload4_len1 = -1;
+int payload4_len2 = -1;
+int total4= -1;
+char payload4[MAX_LEN + MAX_LEN] = { 1 };
+
+char payload_bad[5] = { 0x42, 0x42, 0x42, 0x42, 0x42 };
+
+SEC("raw_tp/sys_enter")
+int handler64_unsigned(void *regs)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+	void *payload = payload1;
+	long len;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid || !capture)
+		return 0;
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in1[0]);
+	if (len >= 0) {
+		payload += len;
+		payload1_len1 = len;
+	}
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
+	if (len >= 0) {
+		payload += len;
+		payload1_len2 = len;
+	}
+
+	total1 = payload - (void *)payload1;
+
+	ret_bad_read = bpf_probe_read_kernel_str(payload_bad + 2, 1, (void *) -1);
+
+	return 0;
+}
+
+SEC("raw_tp/sys_exit")
+int handler64_signed(void *regs)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+	void *payload = payload3;
+	long len;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid || !capture)
+		return 0;
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in1[0]);
+	if (len >= 0) {
+		payload += len;
+		payload3_len1 = len;
+	}
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
+	if (len >= 0) {
+		payload += len;
+		payload3_len2 = len;
+	}
+	total3 = payload - (void *)payload3;
+
+	return 0;
+}
+
+SEC("tp/raw_syscalls/sys_enter")
+int handler32_unsigned(void *regs)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+	void *payload = payload2;
+	u32 len;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid || !capture)
+		return 0;
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in1[0]);
+	if (len <= MAX_LEN) {
+		payload += len;
+		payload2_len1 = len;
+	}
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
+	if (len <= MAX_LEN) {
+		payload += len;
+		payload2_len2 = len;
+	}
+
+	total2 = payload - (void *)payload2;
+
+	return 0;
+}
+
+SEC("tp/raw_syscalls/sys_exit")
+int handler32_signed(void *regs)
+{
+	int pid = bpf_get_current_pid_tgid() >> 32;
+	void *payload = payload4;
+	long len;
+
+	/* ignore irrelevant invocations */
+	if (test_pid != pid || !capture)
+		return 0;
+
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in1[0]);
+	if (len >= 0) {
+		payload += len;
+		payload4_len1 = len;
+	}
+	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
+	if (len >= 0) {
+		payload += len;
+		payload4_len2 = len;
+	}
+	total4 = payload - (void *)payload4;
+
+	return 0;
+}
+
+SEC("tp/syscalls/sys_exit_getpid")
+int handler_exit(void *regs)
+{
+	long bla;
+
+	if (bpf_probe_read_kernel(&bla, sizeof(bla), 0))
+		return 1;
+	else
+		return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale1.c b/tools/testing/selftests/bpf/progs/test_verif_scale1.c
new file mode 100644
index 000000000000..323a73fb2e8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_verif_scale1.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#define ATTR __attribute__((noinline))
+#include "test_jhash.h"
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	void *ptr;
+	int nh_off, i = 0;
+
+	nh_off = 14;
+
+	/* pragma unroll doesn't work on large loops */
+
+#define C do { \
+	ptr = data + i; \
+	if (ptr + nh_off > data_end) \
+		break; \
+	ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
+	} while (0);
+#define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
+	C30;C30;C30; /* 90 calls */
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale2.c b/tools/testing/selftests/bpf/progs/test_verif_scale2.c
new file mode 100644
index 000000000000..f5318f757084
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_verif_scale2.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#define ATTR __always_inline
+#include "test_jhash.h"
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	void *ptr;
+	int nh_off, i = 0;
+
+	nh_off = 14;
+
+	/* pragma unroll doesn't work on large loops */
+
+#define C do { \
+	ptr = data + i; \
+	if (ptr + nh_off > data_end) \
+		break; \
+	ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
+	} while (0);
+#define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
+	C30;C30;C30; /* 90 calls */
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_verif_scale3.c b/tools/testing/selftests/bpf/progs/test_verif_scale3.c
new file mode 100644
index 000000000000..2e06dbb1ad5c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_verif_scale3.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#define ATTR __attribute__((noinline))
+#include "test_jhash.h"
+
+SEC("tc")
+int balancer_ingress(struct __sk_buff *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	void *ptr;
+	int nh_off, i = 0;
+
+	nh_off = 32;
+
+	/* pragma unroll doesn't work on large loops */
+
+#define C do { \
+	ptr = data + i; \
+	if (ptr + nh_off > data_end) \
+		break; \
+	ctx->tc_index = jhash(ptr, nh_off, ctx->cb[0] + i++); \
+	} while (0);
+#define C30 C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;C;
+	C30;C30;C30; /* 90 calls */
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_verify_pkcs7_sig.c b/tools/testing/selftests/bpf/progs/test_verify_pkcs7_sig.c
new file mode 100644
index 000000000000..ff8d755548b9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_verify_pkcs7_sig.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (C) 2022 Huawei Technologies Duesseldorf GmbH
+ *
+ * Author: Roberto Sassu <roberto.sassu@huawei.com>
+ */
+
+#include "vmlinux.h"
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_kfuncs.h"
+#include "err.h"
+
+#define MAX_DATA_SIZE (1024 * 1024)
+#define MAX_SIG_SIZE 1024
+
+__u32 monitored_pid;
+__s32 user_keyring_serial;
+__u64 system_keyring_id;
+
+struct data {
+	__u8 data[MAX_DATA_SIZE];
+	__u32 data_len;
+	__u8 sig[MAX_SIG_SIZE];
+	__u32 sig_len;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, struct data);
+} data_input SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
+
+SEC("lsm.s/bpf")
+int BPF_PROG(bpf, int cmd, union bpf_attr *attr, unsigned int size, bool kernel)
+{
+	struct bpf_dynptr data_ptr, sig_ptr;
+	struct data *data_val;
+	struct bpf_key *trusted_keyring;
+	__u32 pid;
+	__u64 value;
+	int ret, zero = 0;
+
+	pid = bpf_get_current_pid_tgid() >> 32;
+	if (pid != monitored_pid)
+		return 0;
+
+	data_val = bpf_map_lookup_elem(&data_input, &zero);
+	if (!data_val)
+		return 0;
+
+	ret = bpf_probe_read_kernel(&value, sizeof(value), &attr->value);
+	if (ret)
+		goto out;
+
+	ret = bpf_copy_from_user(data_val, sizeof(struct data),
+				 (void *)(unsigned long)value);
+	if (ret)
+		goto out;
+
+	if (data_val->data_len > sizeof(data_val->data))
+		return -EINVAL;
+
+	bpf_dynptr_from_mem(data_val->data, data_val->data_len, 0, &data_ptr);
+
+	if (data_val->sig_len > sizeof(data_val->sig))
+		return -EINVAL;
+
+	bpf_dynptr_from_mem(data_val->sig, data_val->sig_len, 0, &sig_ptr);
+
+	if (user_keyring_serial)
+		trusted_keyring = bpf_lookup_user_key(user_keyring_serial, 0);
+	else
+		trusted_keyring = bpf_lookup_system_key(system_keyring_id);
+
+	if (!trusted_keyring)
+		return -ENOENT;
+
+	ret = bpf_verify_pkcs7_signature(&data_ptr, &sig_ptr, trusted_keyring);
+
+	bpf_key_put(trusted_keyring);
+
+out:
+	set_if_not_errno_or_zero(ret, -EFAULT);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_vmlinux.c b/tools/testing/selftests/bpf/progs/test_vmlinux.c
new file mode 100644
index 000000000000..78b23934d9f8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_vmlinux.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+
+#include "vmlinux.h"
+#include <asm/unistd.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+
+#define MY_TV_NSEC 1337
+
+bool tp_called = false;
+bool raw_tp_called = false;
+bool tp_btf_called = false;
+bool kprobe_called = false;
+bool fentry_called = false;
+
+SEC("tp/syscalls/sys_enter_nanosleep")
+int handle__tp(struct syscall_trace_enter *args)
+{
+	struct __kernel_timespec *ts;
+	long tv_nsec;
+
+	if (args->nr != __NR_nanosleep)
+		return 0;
+
+	ts = (void *)args->args[0];
+	if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) ||
+	    tv_nsec != MY_TV_NSEC)
+		return 0;
+
+	tp_called = true;
+	return 0;
+}
+
+SEC("raw_tp/sys_enter")
+int BPF_PROG(handle__raw_tp, struct pt_regs *regs, long id)
+{
+	struct __kernel_timespec *ts;
+	long tv_nsec;
+
+	if (id != __NR_nanosleep)
+		return 0;
+
+	ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs);
+	if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) ||
+	    tv_nsec != MY_TV_NSEC)
+		return 0;
+
+	raw_tp_called = true;
+	return 0;
+}
+
+SEC("tp_btf/sys_enter")
+int BPF_PROG(handle__tp_btf, struct pt_regs *regs, long id)
+{
+	struct __kernel_timespec *ts;
+	long tv_nsec;
+
+	if (id != __NR_nanosleep)
+		return 0;
+
+	ts = (void *)PT_REGS_PARM1_CORE_SYSCALL(regs);
+	if (bpf_probe_read_user(&tv_nsec, sizeof(ts->tv_nsec), &ts->tv_nsec) ||
+	    tv_nsec != MY_TV_NSEC)
+		return 0;
+
+	tp_btf_called = true;
+	return 0;
+}
+
+SEC("kprobe/hrtimer_start_range_ns")
+int BPF_KPROBE(handle__kprobe, struct hrtimer *timer, ktime_t tim, u64 delta_ns,
+	       const enum hrtimer_mode mode)
+{
+	if (tim == MY_TV_NSEC)
+		kprobe_called = true;
+	return 0;
+}
+
+SEC("fentry/hrtimer_start_range_ns")
+int BPF_PROG(handle__fentry, struct hrtimer *timer, ktime_t tim, u64 delta_ns,
+	     const enum hrtimer_mode mode)
+{
+	if (tim == MY_TV_NSEC)
+		fentry_called = true;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp.c b/tools/testing/selftests/bpf/progs/test_xdp.c
new file mode 100644
index 000000000000..8caf58be5818
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp.c
@@ -0,0 +1,234 @@
+/* Copyright (c) 2016,2017 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/pkt_cls.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "test_iptunnel_common.h"
+#include "bpf_compiler.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 256);
+	__type(key, __u32);
+	__type(value, __u64);
+} rxcnt SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_IPTNL_ENTRIES);
+	__type(key, struct vip);
+	__type(value, struct iptnl_info);
+} vip2tnl SEC(".maps");
+
+static __always_inline void count_tx(__u32 protocol)
+{
+	__u64 *rxcnt_count;
+
+	rxcnt_count = bpf_map_lookup_elem(&rxcnt, &protocol);
+	if (rxcnt_count)
+		*rxcnt_count += 1;
+}
+
+static __always_inline int get_dport(void *trans_data, void *data_end,
+				     __u8 protocol)
+{
+	struct tcphdr *th;
+	struct udphdr *uh;
+
+	switch (protocol) {
+	case IPPROTO_TCP:
+		th = (struct tcphdr *)trans_data;
+		if (th + 1 > data_end)
+			return -1;
+		return th->dest;
+	case IPPROTO_UDP:
+		uh = (struct udphdr *)trans_data;
+		if (uh + 1 > data_end)
+			return -1;
+		return uh->dest;
+	default:
+		return 0;
+	}
+}
+
+static __always_inline void set_ethhdr(struct ethhdr *new_eth,
+				       const struct ethhdr *old_eth,
+				       const struct iptnl_info *tnl,
+				       __be16 h_proto)
+{
+	memcpy(new_eth->h_source, old_eth->h_dest, sizeof(new_eth->h_source));
+	memcpy(new_eth->h_dest, tnl->dmac, sizeof(new_eth->h_dest));
+	new_eth->h_proto = h_proto;
+}
+
+static __always_inline int handle_ipv4(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct iphdr *iph = data + sizeof(struct ethhdr);
+	__u16 *next_iph;
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+	__u32 csum = 0;
+	int i;
+
+	if (iph + 1 > data_end)
+		return XDP_DROP;
+
+	dport = get_dport(iph + 1, data_end, iph->protocol);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = iph->protocol;
+	vip.family = AF_INET;
+	vip.daddr.v4 = iph->daddr;
+	vip.dport = dport;
+	payload_len = bpf_ntohs(iph->tot_len);
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v4-in-v4 */
+	if (!tnl || tnl->family != AF_INET)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr)))
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+
+	new_eth = data;
+	iph = data + sizeof(*new_eth);
+	old_eth = data + sizeof(*iph);
+
+	if (new_eth + 1 > data_end ||
+	    old_eth + 1 > data_end ||
+	    iph + 1 > data_end)
+		return XDP_DROP;
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IP));
+
+	iph->version = 4;
+	iph->ihl = sizeof(*iph) >> 2;
+	iph->frag_off =	0;
+	iph->protocol = IPPROTO_IPIP;
+	iph->check = 0;
+	iph->tos = 0;
+	iph->tot_len = bpf_htons(payload_len + sizeof(*iph));
+	iph->daddr = tnl->daddr.v4;
+	iph->saddr = tnl->saddr.v4;
+	iph->ttl = 8;
+
+	next_iph = (__u16 *)iph;
+	__pragma_loop_unroll_full
+	for (i = 0; i < sizeof(*iph) >> 1; i++)
+		csum += *next_iph++;
+
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+static __always_inline int handle_ipv6(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct ipv6hdr *ip6h = data + sizeof(struct ethhdr);
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+
+	if (ip6h + 1 > data_end)
+		return XDP_DROP;
+
+	dport = get_dport(ip6h + 1, data_end, ip6h->nexthdr);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = ip6h->nexthdr;
+	vip.family = AF_INET6;
+	memcpy(vip.daddr.v6, ip6h->daddr.s6_addr32, sizeof(vip.daddr));
+	vip.dport = dport;
+	payload_len = ip6h->payload_len;
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v6-in-v6 */
+	if (!tnl || tnl->family != AF_INET6)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr)))
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+
+	new_eth = data;
+	ip6h = data + sizeof(*new_eth);
+	old_eth = data + sizeof(*ip6h);
+
+	if (new_eth + 1 > data_end || old_eth + 1 > data_end ||
+	    ip6h + 1 > data_end)
+		return XDP_DROP;
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IPV6));
+
+	ip6h->version = 6;
+	ip6h->priority = 0;
+	memset(ip6h->flow_lbl, 0, sizeof(ip6h->flow_lbl));
+	ip6h->payload_len = bpf_htons(bpf_ntohs(payload_len) + sizeof(*ip6h));
+	ip6h->nexthdr = IPPROTO_IPV6;
+	ip6h->hop_limit = 8;
+	memcpy(ip6h->saddr.s6_addr32, tnl->saddr.v6, sizeof(tnl->saddr.v6));
+	memcpy(ip6h->daddr.s6_addr32, tnl->daddr.v6, sizeof(tnl->daddr.v6));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int _xdp_tx_iptunnel(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	__u16 h_proto;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	h_proto = eth->h_proto;
+
+	if (h_proto == bpf_htons(ETH_P_IP))
+		return handle_ipv4(xdp);
+	else if (h_proto == bpf_htons(ETH_P_IPV6))
+
+		return handle_ipv6(xdp);
+	else
+		return XDP_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_grow.c b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_grow.c
new file mode 100644
index 000000000000..5904f45cfbc4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_grow.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int _xdp_adjust_tail_grow(struct xdp_md *xdp)
+{
+	int data_len = bpf_xdp_get_buff_len(xdp);
+	int offset = 0;
+	/* SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) */
+#if defined(__TARGET_ARCH_s390)
+	int tailroom = 512;
+#elif defined(__TARGET_ARCH_powerpc)
+	int tailroom = 384;
+#else
+	int tailroom = 320;
+#endif
+
+	/* Data length determine test case */
+
+	if (data_len == 54) { /* sizeof(pkt_v4) */
+		offset = 4096; /* test too large offset, 4k page size */
+	} else if (data_len == 53) { /* sizeof(pkt_v4) - 1 */
+		offset = 65536; /* test too large offset, 64k page size */
+	} else if (data_len == 74) { /* sizeof(pkt_v6) */
+		offset = 40;
+	} else if (data_len == 64) {
+		offset = 128;
+	} else if (data_len == 128) {
+		/* Max tail grow 3520 */
+		offset = 4096 - 256 - tailroom - data_len;
+	} else if (data_len == 9000) {
+		offset = 10;
+	} else if (data_len == 9001) {
+		offset = 4096;
+	} else if (data_len == 90000) {
+		offset = 10; /* test a small offset, 64k page size */
+	} else if (data_len == 90001) {
+		offset = 65536; /* test too large offset, 64k page size */
+	} else {
+		return XDP_ABORTED; /* No matching test */
+	}
+
+	if (bpf_xdp_adjust_tail(xdp, offset))
+		return XDP_DROP;
+	return XDP_TX;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c
new file mode 100644
index 000000000000..ca68c038357c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_adjust_tail_shrink.c
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2018 Facebook
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int _xdp_adjust_tail_shrink(struct xdp_md *xdp)
+{
+	__u8 *data_end = (void *)(long)xdp->data_end;
+	__u8 *data = (void *)(long)xdp->data;
+	int offset = 0;
+
+	switch (bpf_xdp_get_buff_len(xdp)) {
+	case 54:
+		/* sizeof(pkt_v4) */
+		offset = 256; /* shrink too much */
+		break;
+	case 9000:
+		/* non-linear buff test cases */
+		if (data + 1 > data_end)
+			return XDP_DROP;
+
+		switch (data[0]) {
+		case 0:
+			offset = 10;
+			break;
+		case 1:
+			offset = 4100;
+			break;
+		case 2:
+			offset = 8200;
+			break;
+		default:
+			return XDP_DROP;
+		}
+		break;
+	default:
+		offset = 20;
+		break;
+	}
+	if (bpf_xdp_adjust_tail(xdp, 0 - offset))
+		return XDP_DROP;
+	return XDP_TX;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_attach_fail.c b/tools/testing/selftests/bpf/progs/test_xdp_attach_fail.c
new file mode 100644
index 000000000000..2ff1b596e87e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_attach_fail.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Leon Hwang */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define ERRMSG_LEN 64
+
+struct xdp_errmsg {
+	char msg[ERRMSG_LEN];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, int);
+	__type(value, int);
+} xdp_errmsg_pb SEC(".maps");
+
+struct xdp_attach_error_ctx {
+	unsigned long unused;
+
+	/*
+	 * bpf does not support tracepoint __data_loc directly.
+	 *
+	 * Actually, this field is a 32 bit integer whose value encodes
+	 * information on where to find the actual data. The first 2 bytes is
+	 * the size of the data. The last 2 bytes is the offset from the start
+	 * of the tracepoint struct where the data begins.
+	 * -- https://github.com/iovisor/bpftrace/pull/1542
+	 */
+	__u32 msg; // __data_loc char[] msg;
+};
+
+/*
+ * Catch the error message at the tracepoint.
+ */
+
+SEC("tp/xdp/bpf_xdp_link_attach_failed")
+int tp__xdp__bpf_xdp_link_attach_failed(struct xdp_attach_error_ctx *ctx)
+{
+	char *msg = (void *)(__u64) ((void *) ctx + (__u16) ctx->msg);
+	struct xdp_errmsg errmsg = {};
+
+	bpf_probe_read_kernel_str(&errmsg.msg, ERRMSG_LEN, msg);
+	bpf_perf_event_output(ctx, &xdp_errmsg_pb, BPF_F_CURRENT_CPU, &errmsg,
+			      ERRMSG_LEN);
+	return 0;
+}
+
+/*
+ * Reuse the XDP program in xdp_dummy.c.
+ */
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c b/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c
new file mode 100644
index 000000000000..ee48c4963971
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_bpf2bpf.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct net_device {
+	/* Structure does not need to contain all entries,
+	 * as "preserve_access_index" will use BTF to fix this...
+	 */
+	int ifindex;
+} __attribute__((preserve_access_index));
+
+struct xdp_rxq_info {
+	/* Structure does not need to contain all entries,
+	 * as "preserve_access_index" will use BTF to fix this...
+	 */
+	struct net_device *dev;
+	__u32 queue_index;
+} __attribute__((preserve_access_index));
+
+struct xdp_buff {
+	void *data;
+	void *data_end;
+	void *data_meta;
+	void *data_hard_start;
+	unsigned long handle;
+	struct xdp_rxq_info *rxq;
+} __attribute__((preserve_access_index));
+
+struct meta {
+	int ifindex;
+	int pkt_len;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERF_EVENT_ARRAY);
+	__type(key, int);
+	__type(value, int);
+} perf_buf_map SEC(".maps");
+
+__u64 test_result_fentry = 0;
+SEC("fentry/FUNC")
+int BPF_PROG(trace_on_entry, struct xdp_buff *xdp)
+{
+	struct meta meta;
+
+	meta.ifindex = xdp->rxq->dev->ifindex;
+	meta.pkt_len = bpf_xdp_get_buff_len((struct xdp_md *)xdp);
+	bpf_xdp_output(xdp, &perf_buf_map,
+		       ((__u64) meta.pkt_len << 32) |
+		       BPF_F_CURRENT_CPU,
+		       &meta, sizeof(meta));
+
+	test_result_fentry = xdp->rxq->dev->ifindex;
+	return 0;
+}
+
+__u64 test_result_fexit = 0;
+SEC("fexit/FUNC")
+int BPF_PROG(trace_on_exit, struct xdp_buff *xdp, int ret)
+{
+	test_result_fexit = ret;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_context_test_run.c b/tools/testing/selftests/bpf/progs/test_xdp_context_test_run.c
new file mode 100644
index 000000000000..d7b88cd05afd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_context_test_run.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int xdp_context(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	__u32 *metadata = (void *)(long)xdp->data_meta;
+	__u32 ret;
+
+	if (metadata + 1 > data)
+		return XDP_ABORTED;
+	ret = *metadata;
+	if (bpf_xdp_adjust_meta(xdp, 4))
+		return XDP_ABORTED;
+	return ret;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_devmap_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_devmap_helpers.c
new file mode 100644
index 000000000000..807bf895f42c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_devmap_helpers.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* fails to load without expected_attach_type = BPF_XDP_DEVMAP
+ * because of access to egress_ifindex
+ */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int xdpdm_devlog(struct xdp_md *ctx)
+{
+	char fmt[] = "devmap redirect: dev %u -> dev %u len %u\n";
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	unsigned int len = data_end - data;
+
+	bpf_trace_printk(fmt, sizeof(fmt),
+			 ctx->ingress_ifindex, ctx->egress_ifindex, len);
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_devmap_tailcall.c b/tools/testing/selftests/bpf/progs/test_xdp_devmap_tailcall.c
new file mode 100644
index 000000000000..814e2a980e97
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_devmap_tailcall.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+SEC("xdp")
+int xdp_devmap(struct xdp_md *ctx)
+{
+	return ctx->egress_ifindex;
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__array(values, int (void *));
+} xdp_map SEC(".maps") = {
+	.values = {
+		[0] = (void *)&xdp_devmap,
+	},
+};
+
+SEC("xdp")
+int xdp_entry(struct xdp_md *ctx)
+{
+	bpf_tail_call(ctx, &xdp_map, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_do_redirect.c b/tools/testing/selftests/bpf/progs/test_xdp_do_redirect.c
new file mode 100644
index 000000000000..5928ed0911ca
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_do_redirect.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+
+#define ETH_ALEN 6
+#define HDR_SZ (sizeof(struct ethhdr) + sizeof(struct ipv6hdr) + sizeof(struct udphdr))
+
+/**
+ * enum frame_mark - magics to distinguish page/packet paths
+ * @MARK_XMIT: page was recycled due to the frame being "xmitted" by the NIC.
+ * @MARK_IN: frame is being processed by the input XDP prog.
+ * @MARK_SKB: frame did hit the TC ingress hook as an skb.
+ */
+enum frame_mark {
+	MARK_XMIT	= 0U,
+	MARK_IN		= 0x42,
+	MARK_SKB	= 0x45,
+};
+
+const volatile int ifindex_out;
+const volatile int ifindex_in;
+const volatile __u8 expect_dst[ETH_ALEN];
+volatile int pkts_seen_xdp = 0;
+volatile int pkts_seen_zero = 0;
+volatile int pkts_seen_tc = 0;
+volatile int retcode = XDP_REDIRECT;
+
+SEC("xdp")
+int xdp_redirect(struct xdp_md *xdp)
+{
+	__u32 *metadata = (void *)(long)xdp->data_meta;
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+
+	__u8 *payload = data + HDR_SZ;
+	int ret = retcode;
+
+	if (payload + 1 > data_end)
+		return XDP_ABORTED;
+
+	if (xdp->ingress_ifindex != (__u32)ifindex_in)
+		return XDP_ABORTED;
+
+	if (metadata + 1 > data)
+		return XDP_ABORTED;
+
+	if (*metadata != 0x42)
+		return XDP_ABORTED;
+
+	if (*payload == MARK_XMIT)
+		pkts_seen_zero++;
+
+	*payload = MARK_IN;
+
+	if (bpf_xdp_adjust_meta(xdp, sizeof(__u64)))
+		return XDP_ABORTED;
+
+	if (retcode > XDP_PASS)
+		retcode--;
+
+	if (ret == XDP_REDIRECT)
+		return bpf_redirect(ifindex_out, 0);
+
+	return ret;
+}
+
+static bool check_pkt(void *data, void *data_end, const __u32 mark)
+{
+	struct ipv6hdr *iph = data + sizeof(struct ethhdr);
+	__u8 *payload = data + HDR_SZ;
+
+	if (payload + 1 > data_end)
+		return false;
+
+	if (iph->nexthdr != IPPROTO_UDP || *payload != MARK_IN)
+		return false;
+
+	/* reset the payload so the same packet doesn't get counted twice when
+	 * it cycles back through the kernel path and out the dst veth
+	 */
+	*payload = mark;
+	return true;
+}
+
+SEC("xdp")
+int xdp_count_pkts(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	void *data_end = (void *)(long)xdp->data_end;
+
+	if (check_pkt(data, data_end, MARK_XMIT))
+		pkts_seen_xdp++;
+
+	/* Return %XDP_DROP to recycle the data page with %MARK_XMIT, like
+	 * it exited a physical NIC. Those pages will be counted in the
+	 * pkts_seen_zero counter above.
+	 */
+	return XDP_DROP;
+}
+
+SEC("xdp")
+int xdp_redirect_to_111(struct xdp_md *xdp)
+{
+	return bpf_redirect(111, 0);
+}
+
+SEC("xdp")
+int xdp_redirect_to_222(struct xdp_md *xdp)
+{
+	return bpf_redirect(222, 0);
+}
+
+SEC("tc")
+int tc_count_pkts(struct __sk_buff *skb)
+{
+	void *data = (void *)(long)skb->data;
+	void *data_end = (void *)(long)skb->data_end;
+
+	if (check_pkt(data, data_end, MARK_SKB))
+		pkts_seen_tc++;
+
+	/* Will be either recycled or freed, %MARK_SKB makes sure it won't
+	 * hit any of the counters above.
+	 */
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_dynptr.c b/tools/testing/selftests/bpf/progs/test_xdp_dynptr.c
new file mode 100644
index 000000000000..67a77944ef29
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_dynptr.c
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta */
+#include <stddef.h>
+#include <string.h>
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/pkt_cls.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "test_iptunnel_common.h"
+#include "bpf_kfuncs.h"
+
+#define tcphdr_sz sizeof(struct tcphdr)
+#define udphdr_sz sizeof(struct udphdr)
+#define ethhdr_sz sizeof(struct ethhdr)
+#define iphdr_sz sizeof(struct iphdr)
+#define ipv6hdr_sz sizeof(struct ipv6hdr)
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 256);
+	__type(key, __u32);
+	__type(value, __u64);
+} rxcnt SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_IPTNL_ENTRIES);
+	__type(key, struct vip);
+	__type(value, struct iptnl_info);
+} vip2tnl SEC(".maps");
+
+static __always_inline void count_tx(__u32 protocol)
+{
+	__u64 *rxcnt_count;
+
+	rxcnt_count = bpf_map_lookup_elem(&rxcnt, &protocol);
+	if (rxcnt_count)
+		*rxcnt_count += 1;
+}
+
+static __always_inline int get_dport(void *trans_data, __u8 protocol)
+{
+	struct tcphdr *th;
+	struct udphdr *uh;
+
+	switch (protocol) {
+	case IPPROTO_TCP:
+		th = (struct tcphdr *)trans_data;
+		return th->dest;
+	case IPPROTO_UDP:
+		uh = (struct udphdr *)trans_data;
+		return uh->dest;
+	default:
+		return 0;
+	}
+}
+
+static __always_inline void set_ethhdr(struct ethhdr *new_eth,
+				       const struct ethhdr *old_eth,
+				       const struct iptnl_info *tnl,
+				       __be16 h_proto)
+{
+	memcpy(new_eth->h_source, old_eth->h_dest, sizeof(new_eth->h_source));
+	memcpy(new_eth->h_dest, tnl->dmac, sizeof(new_eth->h_dest));
+	new_eth->h_proto = h_proto;
+}
+
+static __always_inline int handle_ipv4(struct xdp_md *xdp, struct bpf_dynptr *xdp_ptr)
+{
+	__u8 eth_buffer[ethhdr_sz + iphdr_sz + ethhdr_sz];
+	__u8 iph_buffer_tcp[iphdr_sz + tcphdr_sz];
+	__u8 iph_buffer_udp[iphdr_sz + udphdr_sz];
+	struct bpf_dynptr new_xdp_ptr;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct iphdr *iph;
+	__u16 *next_iph;
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+	__u32 csum = 0;
+	int i;
+
+	__builtin_memset(eth_buffer, 0, sizeof(eth_buffer));
+	__builtin_memset(iph_buffer_tcp, 0, sizeof(iph_buffer_tcp));
+	__builtin_memset(iph_buffer_udp, 0, sizeof(iph_buffer_udp));
+
+	if (ethhdr_sz + iphdr_sz + tcphdr_sz > xdp->data_end - xdp->data)
+		iph = bpf_dynptr_slice(xdp_ptr, ethhdr_sz, iph_buffer_udp, sizeof(iph_buffer_udp));
+	else
+		iph = bpf_dynptr_slice(xdp_ptr, ethhdr_sz, iph_buffer_tcp, sizeof(iph_buffer_tcp));
+
+	if (!iph)
+		return XDP_DROP;
+
+	dport = get_dport(iph + 1, iph->protocol);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = iph->protocol;
+	vip.family = AF_INET;
+	vip.daddr.v4 = iph->daddr;
+	vip.dport = dport;
+	payload_len = bpf_ntohs(iph->tot_len);
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v4-in-v4 */
+	if (!tnl || tnl->family != AF_INET)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)iphdr_sz))
+		return XDP_DROP;
+
+	bpf_dynptr_from_xdp(xdp, 0, &new_xdp_ptr);
+	new_eth = bpf_dynptr_slice_rdwr(&new_xdp_ptr, 0, eth_buffer, sizeof(eth_buffer));
+	if (!new_eth)
+		return XDP_DROP;
+
+	iph = (struct iphdr *)(new_eth + 1);
+	old_eth = (struct ethhdr *)(iph + 1);
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IP));
+
+	if (new_eth == eth_buffer)
+		bpf_dynptr_write(&new_xdp_ptr, 0, eth_buffer, sizeof(eth_buffer), 0);
+
+	iph->version = 4;
+	iph->ihl = iphdr_sz >> 2;
+	iph->frag_off =	0;
+	iph->protocol = IPPROTO_IPIP;
+	iph->check = 0;
+	iph->tos = 0;
+	iph->tot_len = bpf_htons(payload_len + iphdr_sz);
+	iph->daddr = tnl->daddr.v4;
+	iph->saddr = tnl->saddr.v4;
+	iph->ttl = 8;
+
+	next_iph = (__u16 *)iph;
+	for (i = 0; i < iphdr_sz >> 1; i++)
+		csum += *next_iph++;
+
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+static __always_inline int handle_ipv6(struct xdp_md *xdp, struct bpf_dynptr *xdp_ptr)
+{
+	__u8 eth_buffer[ethhdr_sz + ipv6hdr_sz + ethhdr_sz];
+	__u8 ip6h_buffer_tcp[ipv6hdr_sz + tcphdr_sz];
+	__u8 ip6h_buffer_udp[ipv6hdr_sz + udphdr_sz];
+	struct bpf_dynptr new_xdp_ptr;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct ipv6hdr *ip6h;
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+
+	__builtin_memset(eth_buffer, 0, sizeof(eth_buffer));
+	__builtin_memset(ip6h_buffer_tcp, 0, sizeof(ip6h_buffer_tcp));
+	__builtin_memset(ip6h_buffer_udp, 0, sizeof(ip6h_buffer_udp));
+
+	if (ethhdr_sz + iphdr_sz + tcphdr_sz > xdp->data_end - xdp->data)
+		ip6h = bpf_dynptr_slice(xdp_ptr, ethhdr_sz, ip6h_buffer_udp, sizeof(ip6h_buffer_udp));
+	else
+		ip6h = bpf_dynptr_slice(xdp_ptr, ethhdr_sz, ip6h_buffer_tcp, sizeof(ip6h_buffer_tcp));
+
+	if (!ip6h)
+		return XDP_DROP;
+
+	dport = get_dport(ip6h + 1, ip6h->nexthdr);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = ip6h->nexthdr;
+	vip.family = AF_INET6;
+	memcpy(vip.daddr.v6, ip6h->daddr.s6_addr32, sizeof(vip.daddr));
+	vip.dport = dport;
+	payload_len = ip6h->payload_len;
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v6-in-v6 */
+	if (!tnl || tnl->family != AF_INET6)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)ipv6hdr_sz))
+		return XDP_DROP;
+
+	bpf_dynptr_from_xdp(xdp, 0, &new_xdp_ptr);
+	new_eth = bpf_dynptr_slice_rdwr(&new_xdp_ptr, 0, eth_buffer, sizeof(eth_buffer));
+	if (!new_eth)
+		return XDP_DROP;
+
+	ip6h = (struct ipv6hdr *)(new_eth + 1);
+	old_eth = (struct ethhdr *)(ip6h + 1);
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IPV6));
+
+	if (new_eth == eth_buffer)
+		bpf_dynptr_write(&new_xdp_ptr, 0, eth_buffer, sizeof(eth_buffer), 0);
+
+	ip6h->version = 6;
+	ip6h->priority = 0;
+	memset(ip6h->flow_lbl, 0, sizeof(ip6h->flow_lbl));
+	ip6h->payload_len = bpf_htons(bpf_ntohs(payload_len) + ipv6hdr_sz);
+	ip6h->nexthdr = IPPROTO_IPV6;
+	ip6h->hop_limit = 8;
+	memcpy(ip6h->saddr.s6_addr32, tnl->saddr.v6, sizeof(tnl->saddr.v6));
+	memcpy(ip6h->daddr.s6_addr32, tnl->daddr.v6, sizeof(tnl->daddr.v6));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int _xdp_tx_iptunnel(struct xdp_md *xdp)
+{
+	__u8 buffer[ethhdr_sz];
+	struct bpf_dynptr ptr;
+	struct ethhdr *eth;
+	__u16 h_proto;
+
+	__builtin_memset(buffer, 0, sizeof(buffer));
+
+	bpf_dynptr_from_xdp(xdp, 0, &ptr);
+	eth = bpf_dynptr_slice(&ptr, 0, buffer, sizeof(buffer));
+	if (!eth)
+		return XDP_DROP;
+
+	h_proto = eth->h_proto;
+
+	if (h_proto == bpf_htons(ETH_P_IP))
+		return handle_ipv4(xdp, &ptr);
+	else if (h_proto == bpf_htons(ETH_P_IPV6))
+
+		return handle_ipv6(xdp, &ptr);
+	else
+		return XDP_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_link.c b/tools/testing/selftests/bpf/progs/test_xdp_link.c
new file mode 100644
index 000000000000..64ff32eaae92
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_link.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+char LICENSE[] SEC("license") = "GPL";
+
+SEC("xdp")
+int xdp_handler(struct xdp_md *xdp)
+{
+	return 0;
+}
+
+SEC("tc")
+int tc_handler(struct __sk_buff *skb)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_loop.c b/tools/testing/selftests/bpf/progs/test_xdp_loop.c
new file mode 100644
index 000000000000..93267a68825b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_loop.c
@@ -0,0 +1,230 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2019 Facebook
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/udp.h>
+#include <linux/tcp.h>
+#include <linux/pkt_cls.h>
+#include <sys/socket.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "test_iptunnel_common.h"
+#include "bpf_compiler.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 256);
+	__type(key, __u32);
+	__type(value, __u64);
+} rxcnt SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, MAX_IPTNL_ENTRIES);
+	__type(key, struct vip);
+	__type(value, struct iptnl_info);
+} vip2tnl SEC(".maps");
+
+static __always_inline void count_tx(__u32 protocol)
+{
+	__u64 *rxcnt_count;
+
+	rxcnt_count = bpf_map_lookup_elem(&rxcnt, &protocol);
+	if (rxcnt_count)
+		*rxcnt_count += 1;
+}
+
+static __always_inline int get_dport(void *trans_data, void *data_end,
+				     __u8 protocol)
+{
+	struct tcphdr *th;
+	struct udphdr *uh;
+
+	switch (protocol) {
+	case IPPROTO_TCP:
+		th = (struct tcphdr *)trans_data;
+		if (th + 1 > data_end)
+			return -1;
+		return th->dest;
+	case IPPROTO_UDP:
+		uh = (struct udphdr *)trans_data;
+		if (uh + 1 > data_end)
+			return -1;
+		return uh->dest;
+	default:
+		return 0;
+	}
+}
+
+static __always_inline void set_ethhdr(struct ethhdr *new_eth,
+				       const struct ethhdr *old_eth,
+				       const struct iptnl_info *tnl,
+				       __be16 h_proto)
+{
+	memcpy(new_eth->h_source, old_eth->h_dest, sizeof(new_eth->h_source));
+	memcpy(new_eth->h_dest, tnl->dmac, sizeof(new_eth->h_dest));
+	new_eth->h_proto = h_proto;
+}
+
+static __always_inline int handle_ipv4(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct iphdr *iph = data + sizeof(struct ethhdr);
+	__u16 *next_iph;
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+	__u32 csum = 0;
+	int i;
+
+	if (iph + 1 > data_end)
+		return XDP_DROP;
+
+	dport = get_dport(iph + 1, data_end, iph->protocol);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = iph->protocol;
+	vip.family = AF_INET;
+	vip.daddr.v4 = iph->daddr;
+	vip.dport = dport;
+	payload_len = bpf_ntohs(iph->tot_len);
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v4-in-v4 */
+	if (!tnl || tnl->family != AF_INET)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr)))
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+
+	new_eth = data;
+	iph = data + sizeof(*new_eth);
+	old_eth = data + sizeof(*iph);
+
+	if (new_eth + 1 > data_end ||
+	    old_eth + 1 > data_end ||
+	    iph + 1 > data_end)
+		return XDP_DROP;
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IP));
+
+	iph->version = 4;
+	iph->ihl = sizeof(*iph) >> 2;
+	iph->frag_off =	0;
+	iph->protocol = IPPROTO_IPIP;
+	iph->check = 0;
+	iph->tos = 0;
+	iph->tot_len = bpf_htons(payload_len + sizeof(*iph));
+	iph->daddr = tnl->daddr.v4;
+	iph->saddr = tnl->saddr.v4;
+	iph->ttl = 8;
+
+	next_iph = (__u16 *)iph;
+	__pragma_loop_no_unroll
+	for (i = 0; i < sizeof(*iph) >> 1; i++)
+		csum += *next_iph++;
+
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+static __always_inline int handle_ipv6(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct iptnl_info *tnl;
+	struct ethhdr *new_eth;
+	struct ethhdr *old_eth;
+	struct ipv6hdr *ip6h = data + sizeof(struct ethhdr);
+	__u16 payload_len;
+	struct vip vip = {};
+	int dport;
+
+	if (ip6h + 1 > data_end)
+		return XDP_DROP;
+
+	dport = get_dport(ip6h + 1, data_end, ip6h->nexthdr);
+	if (dport == -1)
+		return XDP_DROP;
+
+	vip.protocol = ip6h->nexthdr;
+	vip.family = AF_INET6;
+	memcpy(vip.daddr.v6, ip6h->daddr.s6_addr32, sizeof(vip.daddr));
+	vip.dport = dport;
+	payload_len = ip6h->payload_len;
+
+	tnl = bpf_map_lookup_elem(&vip2tnl, &vip);
+	/* It only does v6-in-v6 */
+	if (!tnl || tnl->family != AF_INET6)
+		return XDP_PASS;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr)))
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+
+	new_eth = data;
+	ip6h = data + sizeof(*new_eth);
+	old_eth = data + sizeof(*ip6h);
+
+	if (new_eth + 1 > data_end || old_eth + 1 > data_end ||
+	    ip6h + 1 > data_end)
+		return XDP_DROP;
+
+	set_ethhdr(new_eth, old_eth, tnl, bpf_htons(ETH_P_IPV6));
+
+	ip6h->version = 6;
+	ip6h->priority = 0;
+	memset(ip6h->flow_lbl, 0, sizeof(ip6h->flow_lbl));
+	ip6h->payload_len = bpf_htons(bpf_ntohs(payload_len) + sizeof(*ip6h));
+	ip6h->nexthdr = IPPROTO_IPV6;
+	ip6h->hop_limit = 8;
+	memcpy(ip6h->saddr.s6_addr32, tnl->saddr.v6, sizeof(tnl->saddr.v6));
+	memcpy(ip6h->daddr.s6_addr32, tnl->daddr.v6, sizeof(tnl->daddr.v6));
+
+	count_tx(vip.protocol);
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int _xdp_tx_iptunnel(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	__u16 h_proto;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	h_proto = eth->h_proto;
+
+	if (h_proto == bpf_htons(ETH_P_IP))
+		return handle_ipv4(xdp);
+	else if (h_proto == bpf_htons(ETH_P_IPV6))
+
+		return handle_ipv6(xdp);
+	else
+		return XDP_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_meta.c b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
new file mode 100644
index 000000000000..0a0f371a2dec
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
@@ -0,0 +1,673 @@
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/errno.h>
+#include <linux/if_ether.h>
+#include <linux/pkt_cls.h>
+
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_kfuncs.h"
+
+#define META_SIZE 32
+
+#define ctx_ptr(ctx, mem) (void *)(unsigned long)ctx->mem
+
+/* Demonstrate passing metadata from XDP to TC using bpf_xdp_adjust_meta.
+ *
+ * The XDP program extracts a fixed-size payload following the Ethernet header
+ * and stores it as packet metadata to test the driver's metadata support. The
+ * TC program then verifies if the passed metadata is correct.
+ */
+
+bool test_pass;
+
+static const __u8 smac_want[ETH_ALEN] = {
+	0x12, 0x34, 0xDE, 0xAD, 0xBE, 0xEF,
+};
+
+static const __u8 meta_want[META_SIZE] = {
+	0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+	0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
+	0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28,
+	0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38,
+};
+
+static bool check_smac(const struct ethhdr *eth)
+{
+	return !__builtin_memcmp(eth->h_source, smac_want, ETH_ALEN);
+}
+
+static bool check_metadata(const char *file, int line, __u8 *meta_have)
+{
+	if (!__builtin_memcmp(meta_have, meta_want, META_SIZE))
+		return true;
+
+	bpf_stream_printk(BPF_STREAM_STDERR,
+			  "FAIL:%s:%d: metadata mismatch\n"
+			  "  have:\n    %pI6\n    %pI6\n"
+			  "  want:\n    %pI6\n    %pI6\n",
+			  file, line,
+			  &meta_have[0x00], &meta_have[0x10],
+			  &meta_want[0x00], &meta_want[0x10]);
+	return false;
+}
+
+#define check_metadata(meta_have) check_metadata(__FILE__, __LINE__, meta_have)
+
+static bool check_skb_metadata(const char *file, int line, struct __sk_buff *skb)
+{
+	__u8 *data_meta = ctx_ptr(skb, data_meta);
+	__u8 *data = ctx_ptr(skb, data);
+
+	return data_meta + META_SIZE <= data && (check_metadata)(file, line, data_meta);
+}
+
+#define check_skb_metadata(skb) check_skb_metadata(__FILE__, __LINE__, skb)
+
+SEC("tc")
+int ing_cls(struct __sk_buff *ctx)
+{
+	__u8 *meta_have = ctx_ptr(ctx, data_meta);
+	__u8 *data = ctx_ptr(ctx, data);
+
+	if (meta_have + META_SIZE > data)
+		goto out;
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/* Read from metadata using bpf_dynptr_read helper */
+SEC("tc")
+int ing_cls_dynptr_read(struct __sk_buff *ctx)
+{
+	__u8 meta_have[META_SIZE];
+	struct bpf_dynptr meta;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/* Write to metadata using bpf_dynptr_write helper */
+SEC("tc")
+int ing_cls_dynptr_write(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *src;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	src = bpf_dynptr_slice(&data, sizeof(struct ethhdr), NULL, META_SIZE);
+	if (!src)
+		return TC_ACT_SHOT;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	bpf_dynptr_write(&meta, 0, src, META_SIZE, 0);
+
+	return TC_ACT_UNSPEC; /* pass */
+}
+
+/* Read from metadata using read-only dynptr slice */
+SEC("tc")
+int ing_cls_dynptr_slice(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr meta;
+	__u8 *meta_have;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	meta_have = bpf_dynptr_slice(&meta, 0, NULL, META_SIZE);
+	if (!meta_have)
+		goto out;
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/* Write to metadata using writeable dynptr slice */
+SEC("tc")
+int ing_cls_dynptr_slice_rdwr(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	__u8 *src, *dst;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	src = bpf_dynptr_slice(&data, sizeof(struct ethhdr), NULL, META_SIZE);
+	if (!src)
+		return TC_ACT_SHOT;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	dst = bpf_dynptr_slice_rdwr(&meta, 0, NULL, META_SIZE);
+	if (!dst)
+		return TC_ACT_SHOT;
+
+	__builtin_memcpy(dst, src, META_SIZE);
+
+	return TC_ACT_UNSPEC; /* pass */
+}
+
+/* Read skb metadata in chunks from various offsets in different ways. */
+SEC("tc")
+int ing_cls_dynptr_offset_rd(struct __sk_buff *ctx)
+{
+	const __u32 chunk_len = META_SIZE / 4;
+	__u8 meta_have[META_SIZE];
+	struct bpf_dynptr meta;
+	__u8 *dst, *src;
+
+	dst = meta_have;
+
+	/* 1. Regular read */
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	bpf_dynptr_read(dst, chunk_len, &meta, 0, 0);
+	dst += chunk_len;
+
+	/* 2. Read from an offset-adjusted dynptr */
+	bpf_dynptr_adjust(&meta, chunk_len, bpf_dynptr_size(&meta));
+	bpf_dynptr_read(dst, chunk_len, &meta, 0, 0);
+	dst += chunk_len;
+
+	/* 3. Read at an offset */
+	bpf_dynptr_read(dst, chunk_len, &meta, chunk_len, 0);
+	dst += chunk_len;
+
+	/* 4. Read from a slice starting at an offset */
+	src = bpf_dynptr_slice(&meta, 2 * chunk_len, NULL, chunk_len);
+	if (!src)
+		goto out;
+	__builtin_memcpy(dst, src, chunk_len);
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/* Write skb metadata in chunks at various offsets in different ways. */
+SEC("tc")
+int ing_cls_dynptr_offset_wr(struct __sk_buff *ctx)
+{
+	const __u32 chunk_len = META_SIZE / 4;
+	__u8 payload[META_SIZE];
+	struct bpf_dynptr meta;
+	__u8 *dst, *src;
+
+	bpf_skb_load_bytes(ctx, sizeof(struct ethhdr), payload, sizeof(payload));
+	src = payload;
+
+	/* 1. Regular write */
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	bpf_dynptr_write(&meta, 0, src, chunk_len, 0);
+	src += chunk_len;
+
+	/* 2. Write to an offset-adjusted dynptr */
+	bpf_dynptr_adjust(&meta, chunk_len, bpf_dynptr_size(&meta));
+	bpf_dynptr_write(&meta, 0, src, chunk_len, 0);
+	src += chunk_len;
+
+	/* 3. Write at an offset */
+	bpf_dynptr_write(&meta, chunk_len, src, chunk_len, 0);
+	src += chunk_len;
+
+	/* 4. Write to a slice starting at an offset */
+	dst = bpf_dynptr_slice_rdwr(&meta, 2 * chunk_len, NULL, chunk_len);
+	if (!dst)
+		return TC_ACT_SHOT;
+	__builtin_memcpy(dst, src, chunk_len);
+
+	return TC_ACT_UNSPEC; /* pass */
+}
+
+/* Pass an OOB offset to dynptr read, write, adjust, slice. */
+SEC("tc")
+int ing_cls_dynptr_offset_oob(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr meta;
+	__u8 md, *p;
+	int err;
+
+	err = bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	if (err)
+		goto fail;
+
+	/* read offset OOB */
+	err = bpf_dynptr_read(&md, sizeof(md), &meta, META_SIZE, 0);
+	if (err != -E2BIG)
+		goto fail;
+
+	/* write offset OOB */
+	err = bpf_dynptr_write(&meta, META_SIZE, &md, sizeof(md), 0);
+	if (err != -E2BIG)
+		goto fail;
+
+	/* adjust end offset OOB */
+	err = bpf_dynptr_adjust(&meta, 0, META_SIZE + 1);
+	if (err != -ERANGE)
+		goto fail;
+
+	/* adjust start offset OOB */
+	err = bpf_dynptr_adjust(&meta, META_SIZE + 1, META_SIZE + 1);
+	if (err != -ERANGE)
+		goto fail;
+
+	/* slice offset OOB */
+	p = bpf_dynptr_slice(&meta, META_SIZE, NULL, sizeof(*p));
+	if (p)
+		goto fail;
+
+	/* slice rdwr offset OOB */
+	p = bpf_dynptr_slice_rdwr(&meta, META_SIZE, NULL, sizeof(*p));
+	if (p)
+		goto fail;
+
+	return TC_ACT_UNSPEC;
+fail:
+	return TC_ACT_SHOT;
+}
+
+/* Reserve and clear space for metadata but don't populate it */
+SEC("xdp")
+int ing_xdp_zalloc_meta(struct xdp_md *ctx)
+{
+	struct ethhdr *eth = ctx_ptr(ctx, data);
+	__u8 *meta;
+	int ret;
+
+	/* Drop any non-test packets */
+	if (eth + 1 > ctx_ptr(ctx, data_end))
+		return XDP_DROP;
+	if (!check_smac(eth))
+		return XDP_DROP;
+
+	ret = bpf_xdp_adjust_meta(ctx, -META_SIZE);
+	if (ret < 0)
+		return XDP_DROP;
+
+	meta = ctx_ptr(ctx, data_meta);
+	if (meta + META_SIZE > ctx_ptr(ctx, data))
+		return XDP_DROP;
+
+	__builtin_memset(meta, 0, META_SIZE);
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int ing_xdp(struct xdp_md *ctx)
+{
+	__u8 *data, *data_meta, *data_end, *payload;
+	struct ethhdr *eth;
+	int ret;
+
+	ret = bpf_xdp_adjust_meta(ctx, -META_SIZE);
+	if (ret < 0)
+		return XDP_DROP;
+
+	data_meta = ctx_ptr(ctx, data_meta);
+	data_end  = ctx_ptr(ctx, data_end);
+	data      = ctx_ptr(ctx, data);
+
+	eth = (struct ethhdr *)data;
+	payload = data + sizeof(struct ethhdr);
+
+	if (payload + META_SIZE > data_end ||
+	    data_meta + META_SIZE > data)
+		return XDP_DROP;
+
+	/* The Linux networking stack may send other packets on the test
+	 * interface that interfere with the test. Just drop them.
+	 * The test packets can be recognized by their source MAC address.
+	 */
+	if (!check_smac(eth))
+		return XDP_DROP;
+
+	__builtin_memcpy(data_meta, payload, META_SIZE);
+	return XDP_PASS;
+}
+
+/*
+ * Check that, when operating on a cloned packet, skb->data_meta..skb->data is
+ * kept intact if prog writes to packet _payload_ using packet pointers.
+ */
+SEC("tc")
+int clone_data_meta_survives_data_write(struct __sk_buff *ctx)
+{
+	__u8 *meta_have = ctx_ptr(ctx, data_meta);
+	struct ethhdr *eth = ctx_ptr(ctx, data);
+
+	if (eth + 1 > ctx_ptr(ctx, data_end))
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	if (meta_have + META_SIZE > eth)
+		goto out;
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	/* Packet write to trigger unclone in prologue */
+	eth->h_proto = 42;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/*
+ * Check that, when operating on a cloned packet, skb->data_meta..skb->data is
+ * kept intact if prog writes to packet _metadata_ using packet pointers.
+ */
+SEC("tc")
+int clone_data_meta_survives_meta_write(struct __sk_buff *ctx)
+{
+	__u8 *meta_have = ctx_ptr(ctx, data_meta);
+	struct ethhdr *eth = ctx_ptr(ctx, data);
+
+	if (eth + 1 > ctx_ptr(ctx, data_end))
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	if (meta_have + META_SIZE > eth)
+		goto out;
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	/* Metadata write to trigger unclone in prologue */
+	*meta_have = 42;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/*
+ * Check that, when operating on a cloned packet, metadata remains intact if
+ * prog creates a r/w slice to packet _payload_.
+ */
+SEC("tc")
+int clone_meta_dynptr_survives_data_slice_write(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	__u8 meta_have[META_SIZE];
+	struct ethhdr *eth;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	eth = bpf_dynptr_slice_rdwr(&data, 0, NULL, sizeof(*eth));
+	if (!eth)
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/*
+ * Check that, when operating on a cloned packet, metadata remains intact if
+ * prog creates an r/w slice to packet _metadata_.
+ */
+SEC("tc")
+int clone_meta_dynptr_survives_meta_slice_write(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	const struct ethhdr *eth;
+	__u8 *meta_have;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	eth = bpf_dynptr_slice(&data, 0, NULL, sizeof(*eth));
+	if (!eth)
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	meta_have = bpf_dynptr_slice_rdwr(&meta, 0, NULL, META_SIZE);
+	if (!meta_have)
+		goto out;
+
+	if (!check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/*
+ * Check that, when operating on a cloned packet, skb_meta dynptr is read-write
+ * before prog writes to packet _payload_ using dynptr_write helper and metadata
+ * remains intact before and after the write.
+ */
+SEC("tc")
+int clone_meta_dynptr_rw_before_data_dynptr_write(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	__u8 meta_have[META_SIZE];
+	const struct ethhdr *eth;
+	int err;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	eth = bpf_dynptr_slice(&data, 0, NULL, sizeof(*eth));
+	if (!eth)
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	/* Expect read-write metadata before unclone */
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	if (bpf_dynptr_is_rdonly(&meta))
+		goto out;
+
+	err = bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+	if (err || !check_metadata(meta_have))
+		goto out;
+
+	/* Helper write to payload will unclone the packet */
+	bpf_dynptr_write(&data, offsetof(struct ethhdr, h_proto), "x", 1, 0);
+
+	err = bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+	if (err || !check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+/*
+ * Check that, when operating on a cloned packet, skb_meta dynptr is read-write
+ * before prog writes to packet _metadata_ using dynptr_write helper and
+ * metadata remains intact before and after the write.
+ */
+SEC("tc")
+int clone_meta_dynptr_rw_before_meta_dynptr_write(struct __sk_buff *ctx)
+{
+	struct bpf_dynptr data, meta;
+	__u8 meta_have[META_SIZE];
+	const struct ethhdr *eth;
+	int err;
+
+	bpf_dynptr_from_skb(ctx, 0, &data);
+	eth = bpf_dynptr_slice(&data, 0, NULL, sizeof(*eth));
+	if (!eth)
+		goto out;
+	/* Ignore non-test packets */
+	if (!check_smac(eth))
+		goto out;
+
+	/* Expect read-write metadata before unclone */
+	bpf_dynptr_from_skb_meta(ctx, 0, &meta);
+	if (bpf_dynptr_is_rdonly(&meta))
+		goto out;
+
+	err = bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+	if (err || !check_metadata(meta_have))
+		goto out;
+
+	/* Helper write to metadata will unclone the packet */
+	bpf_dynptr_write(&meta, 0, &meta_have[0], 1, 0);
+
+	err = bpf_dynptr_read(meta_have, META_SIZE, &meta, 0, 0);
+	if (err || !check_metadata(meta_have))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int helper_skb_vlan_push_pop(struct __sk_buff *ctx)
+{
+	int err;
+
+	/* bpf_skb_vlan_push assumes HW offload for primary VLAN tag. Only
+	 * secondary tag push triggers an actual MAC header modification.
+	 */
+	err = bpf_skb_vlan_push(ctx, 0, 42);
+	if (err)
+		goto out;
+	err = bpf_skb_vlan_push(ctx, 0, 207);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	err = bpf_skb_vlan_pop(ctx);
+	if (err)
+		goto out;
+	err = bpf_skb_vlan_pop(ctx);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int helper_skb_adjust_room(struct __sk_buff *ctx)
+{
+	int err;
+
+	/* Grow a 1 byte hole after the MAC header */
+	err = bpf_skb_adjust_room(ctx, 1, BPF_ADJ_ROOM_MAC, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	/* Shrink a 1 byte hole after the MAC header */
+	err = bpf_skb_adjust_room(ctx, -1, BPF_ADJ_ROOM_MAC, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	/* Grow a 256 byte hole to trigger head reallocation */
+	err = bpf_skb_adjust_room(ctx, 256, BPF_ADJ_ROOM_MAC, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int helper_skb_change_head_tail(struct __sk_buff *ctx)
+{
+	int err;
+
+	/* Reserve 1 extra in the front for packet data */
+	err = bpf_skb_change_head(ctx, 1, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	/* Reserve 256 extra bytes in the front to trigger head reallocation */
+	err = bpf_skb_change_head(ctx, 256, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	/* Reserve 4k extra bytes in the back to trigger head reallocation */
+	err = bpf_skb_change_tail(ctx, ctx->len + 4096, 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+SEC("tc")
+int helper_skb_change_proto(struct __sk_buff *ctx)
+{
+	int err;
+
+	err = bpf_skb_change_proto(ctx, bpf_htons(ETH_P_IPV6), 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	err = bpf_skb_change_proto(ctx, bpf_htons(ETH_P_IP), 0);
+	if (err)
+		goto out;
+
+	if (!check_skb_metadata(ctx))
+		goto out;
+
+	test_pass = true;
+out:
+	return TC_ACT_SHOT;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c
new file mode 100644
index 000000000000..fad94e41cef9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c
@@ -0,0 +1,811 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/pkt_cls.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include "bpf_compiler.h"
+
+static __always_inline __u32 rol32(__u32 word, unsigned int shift)
+{
+	return (word << shift) | (word >> ((-shift) & 31));
+}
+
+/* copy paste of jhash from kernel sources to make sure llvm
+ * can compile it into valid sequence of bpf instructions
+ */
+#define __jhash_mix(a, b, c)			\
+{						\
+	a -= c;  a ^= rol32(c, 4);  c += b;	\
+	b -= a;  b ^= rol32(a, 6);  a += c;	\
+	c -= b;  c ^= rol32(b, 8);  b += a;	\
+	a -= c;  a ^= rol32(c, 16); c += b;	\
+	b -= a;  b ^= rol32(a, 19); a += c;	\
+	c -= b;  c ^= rol32(b, 4);  b += a;	\
+}
+
+#define __jhash_final(a, b, c)			\
+{						\
+	c ^= b; c -= rol32(b, 14);		\
+	a ^= c; a -= rol32(c, 11);		\
+	b ^= a; b -= rol32(a, 25);		\
+	c ^= b; c -= rol32(b, 16);		\
+	a ^= c; a -= rol32(c, 4);		\
+	b ^= a; b -= rol32(a, 14);		\
+	c ^= b; c -= rol32(b, 24);		\
+}
+
+#define JHASH_INITVAL		0xdeadbeef
+
+typedef unsigned int u32;
+
+static __noinline
+u32 jhash(const void *key, u32 length, u32 initval)
+{
+	u32 a, b, c;
+	const unsigned char *k = key;
+
+	a = b = c = JHASH_INITVAL + length + initval;
+
+	while (length > 12) {
+		a += *(u32 *)(k);
+		b += *(u32 *)(k + 4);
+		c += *(u32 *)(k + 8);
+		__jhash_mix(a, b, c);
+		length -= 12;
+		k += 12;
+	}
+	switch (length) {
+	case 12: c += (u32)k[11]<<24;
+	case 11: c += (u32)k[10]<<16;
+	case 10: c += (u32)k[9]<<8;
+	case 9:  c += k[8];
+	case 8:  b += (u32)k[7]<<24;
+	case 7:  b += (u32)k[6]<<16;
+	case 6:  b += (u32)k[5]<<8;
+	case 5:  b += k[4];
+	case 4:  a += (u32)k[3]<<24;
+	case 3:  a += (u32)k[2]<<16;
+	case 2:  a += (u32)k[1]<<8;
+	case 1:  a += k[0];
+		 __jhash_final(a, b, c);
+	case 0: /* Nothing left to add */
+		break;
+	}
+
+	return c;
+}
+
+__noinline
+u32 __jhash_nwords(u32 a, u32 b, u32 c, u32 initval)
+{
+	a += initval;
+	b += initval;
+	c += initval;
+	__jhash_final(a, b, c);
+	return c;
+}
+
+__noinline
+u32 jhash_2words(u32 a, u32 b, u32 initval)
+{
+	return __jhash_nwords(a, b, 0, initval + JHASH_INITVAL + (2 << 2));
+}
+
+struct flow_key {
+	union {
+		__be32 src;
+		__be32 srcv6[4];
+	};
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	union {
+		__u32 ports;
+		__u16 port16[2];
+	};
+	__u8 proto;
+};
+
+struct packet_description {
+	struct flow_key flow;
+	__u8 flags;
+};
+
+struct ctl_value {
+	union {
+		__u64 value;
+		__u32 ifindex;
+		__u8 mac[6];
+	};
+};
+
+struct vip_definition {
+	union {
+		__be32 vip;
+		__be32 vipv6[4];
+	};
+	__u16 port;
+	__u16 family;
+	__u8 proto;
+};
+
+struct vip_meta {
+	__u32 flags;
+	__u32 vip_num;
+};
+
+struct real_pos_lru {
+	__u32 pos;
+	__u64 atime;
+};
+
+struct real_definition {
+	union {
+		__be32 dst;
+		__be32 dstv6[4];
+	};
+	__u8 flags;
+};
+
+struct lb_stats {
+	__u64 v2;
+	__u64 v1;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 512);
+	__type(key, struct vip_definition);
+	__type(value, struct vip_meta);
+} vip_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 300);
+	__uint(map_flags, 1U << 1);
+	__type(key, struct flow_key);
+	__type(value, struct real_pos_lru);
+} lru_cache SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 12 * 655);
+	__type(key, __u32);
+	__type(value, __u32);
+} ch_rings SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 40);
+	__type(key, __u32);
+	__type(value, struct real_definition);
+} reals SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 515);
+	__type(key, __u32);
+	__type(value, struct lb_stats);
+} stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 16);
+	__type(key, __u32);
+	__type(value, struct ctl_value);
+} ctl_array SEC(".maps");
+
+struct eth_hdr {
+	unsigned char eth_dest[6];
+	unsigned char eth_source[6];
+	unsigned short eth_proto;
+};
+
+static __noinline __u64 calc_offset(bool is_ipv6, bool is_icmp)
+{
+	__u64 off = sizeof(struct eth_hdr);
+	if (is_ipv6) {
+		off += sizeof(struct ipv6hdr);
+		if (is_icmp)
+			off += sizeof(struct icmp6hdr) + sizeof(struct ipv6hdr);
+	} else {
+		off += sizeof(struct iphdr);
+		if (is_icmp)
+			off += sizeof(struct icmphdr) + sizeof(struct iphdr);
+	}
+	return off;
+}
+
+static __attribute__ ((noinline))
+bool parse_udp(void *data, void *data_end,
+	       bool is_ipv6, struct packet_description *pckt)
+{
+
+	bool is_icmp = !((pckt->flags & (1 << 0)) == 0);
+	__u64 off = calc_offset(is_ipv6, is_icmp);
+	struct udphdr *udp;
+	udp = data + off;
+
+	if (udp + 1 > data_end)
+		return false;
+	if (!is_icmp) {
+		pckt->flow.port16[0] = udp->source;
+		pckt->flow.port16[1] = udp->dest;
+	} else {
+		pckt->flow.port16[0] = udp->dest;
+		pckt->flow.port16[1] = udp->source;
+	}
+	return true;
+}
+
+static __attribute__ ((noinline))
+bool parse_tcp(void *data, void *data_end,
+	       bool is_ipv6, struct packet_description *pckt)
+{
+
+	bool is_icmp = !((pckt->flags & (1 << 0)) == 0);
+	__u64 off = calc_offset(is_ipv6, is_icmp);
+	struct tcphdr *tcp;
+
+	tcp = data + off;
+	if (tcp + 1 > data_end)
+		return false;
+	if (tcp->syn)
+		pckt->flags |= (1 << 1);
+	if (!is_icmp) {
+		pckt->flow.port16[0] = tcp->source;
+		pckt->flow.port16[1] = tcp->dest;
+	} else {
+		pckt->flow.port16[0] = tcp->dest;
+		pckt->flow.port16[1] = tcp->source;
+	}
+	return true;
+}
+
+static __attribute__ ((noinline))
+bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval,
+	      struct packet_description *pckt,
+	      struct real_definition *dst, __u32 pkt_bytes)
+{
+	struct eth_hdr *new_eth;
+	struct eth_hdr *old_eth;
+	struct ipv6hdr *ip6h;
+	__u32 ip_suffix;
+	void *data_end;
+	void *data;
+
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr)))
+		return false;
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+	new_eth = data;
+	ip6h = data + sizeof(struct eth_hdr);
+	old_eth = data + sizeof(struct ipv6hdr);
+	if (new_eth + 1 > data_end ||
+	    old_eth + 1 > data_end || ip6h + 1 > data_end)
+		return false;
+	memcpy(new_eth->eth_dest, cval->mac, 6);
+	memcpy(new_eth->eth_source, old_eth->eth_dest, 6);
+	new_eth->eth_proto = 56710;
+	ip6h->version = 6;
+	ip6h->priority = 0;
+	memset(ip6h->flow_lbl, 0, sizeof(ip6h->flow_lbl));
+
+	ip6h->nexthdr = IPPROTO_IPV6;
+	ip_suffix = pckt->flow.srcv6[3] ^ pckt->flow.port16[0];
+	ip6h->payload_len =
+	    bpf_htons(pkt_bytes + sizeof(struct ipv6hdr));
+	ip6h->hop_limit = 4;
+
+	ip6h->saddr.in6_u.u6_addr32[0] = 1;
+	ip6h->saddr.in6_u.u6_addr32[1] = 2;
+	ip6h->saddr.in6_u.u6_addr32[2] = 3;
+	ip6h->saddr.in6_u.u6_addr32[3] = ip_suffix;
+	memcpy(ip6h->daddr.in6_u.u6_addr32, dst->dstv6, 16);
+	return true;
+}
+
+#ifndef __clang__
+#pragma GCC push_options
+/* GCC optimization collapses functions and increases the number of arguments
+ * beyond the compatible amount supported by BPF.
+ */
+#pragma GCC optimize("-fno-ipa-sra")
+#endif
+
+static __attribute__ ((noinline))
+bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval,
+	      struct packet_description *pckt,
+	      struct real_definition *dst, __u32 pkt_bytes)
+{
+
+	__u32 ip_suffix = bpf_ntohs(pckt->flow.port16[0]);
+	struct eth_hdr *new_eth;
+	struct eth_hdr *old_eth;
+	__u16 *next_iph_u16;
+	struct iphdr *iph;
+	__u32 csum = 0;
+	void *data_end;
+	void *data;
+
+	ip_suffix <<= 15;
+	ip_suffix ^= pckt->flow.src;
+	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr)))
+		return false;
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+	new_eth = data;
+	iph = data + sizeof(struct eth_hdr);
+	old_eth = data + sizeof(struct iphdr);
+	if (new_eth + 1 > data_end ||
+	    old_eth + 1 > data_end || iph + 1 > data_end)
+		return false;
+	memcpy(new_eth->eth_dest, cval->mac, 6);
+	memcpy(new_eth->eth_source, old_eth->eth_dest, 6);
+	new_eth->eth_proto = 8;
+	iph->version = 4;
+	iph->ihl = 5;
+	iph->frag_off = 0;
+	iph->protocol = IPPROTO_IPIP;
+	iph->check = 0;
+	iph->tos = 1;
+	iph->tot_len = bpf_htons(pkt_bytes + sizeof(struct iphdr));
+	/* don't update iph->daddr, since it will overwrite old eth_proto
+	 * and multiple iterations of bpf_prog_run() will fail
+	 */
+
+	iph->saddr = ((0xFFFF0000 & ip_suffix) | 4268) ^ dst->dst;
+	iph->ttl = 4;
+
+	next_iph_u16 = (__u16 *) iph;
+	__pragma_loop_unroll_full
+	for (int i = 0; i < sizeof(struct iphdr) >> 1; i++)
+		csum += *next_iph_u16++;
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+	if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct iphdr)))
+		return false;
+	return true;
+}
+
+#ifndef __clang__
+#pragma GCC pop_options
+#endif
+
+static __attribute__ ((noinline))
+int swap_mac_and_send(void *data, void *data_end)
+{
+	unsigned char tmp_mac[6];
+	struct eth_hdr *eth;
+
+	eth = data;
+	memcpy(tmp_mac, eth->eth_source, 6);
+	memcpy(eth->eth_source, eth->eth_dest, 6);
+	memcpy(eth->eth_dest, tmp_mac, 6);
+	return XDP_TX;
+}
+
+static __attribute__ ((noinline))
+int send_icmp_reply(void *data, void *data_end)
+{
+	struct icmphdr *icmp_hdr;
+	__u16 *next_iph_u16;
+	__u32 tmp_addr = 0;
+	struct iphdr *iph;
+	__u32 csum = 0;
+	__u64 off = 0;
+
+	if (data + sizeof(struct eth_hdr)
+	     + sizeof(struct iphdr) + sizeof(struct icmphdr) > data_end)
+		return XDP_DROP;
+	off += sizeof(struct eth_hdr);
+	iph = data + off;
+	off += sizeof(struct iphdr);
+	icmp_hdr = data + off;
+	icmp_hdr->type = 0;
+	icmp_hdr->checksum += 0x0007;
+	iph->ttl = 4;
+	tmp_addr = iph->daddr;
+	iph->daddr = iph->saddr;
+	iph->saddr = tmp_addr;
+	iph->check = 0;
+	next_iph_u16 = (__u16 *) iph;
+	__pragma_loop_unroll_full
+	for (int i = 0; i < sizeof(struct iphdr) >> 1; i++)
+		csum += *next_iph_u16++;
+	iph->check = ~((csum & 0xffff) + (csum >> 16));
+	return swap_mac_and_send(data, data_end);
+}
+
+static __attribute__ ((noinline))
+int send_icmp6_reply(void *data, void *data_end)
+{
+	struct icmp6hdr *icmp_hdr;
+	struct ipv6hdr *ip6h;
+	__be32 tmp_addr[4];
+	__u64 off = 0;
+
+	if (data + sizeof(struct eth_hdr)
+	     + sizeof(struct ipv6hdr) + sizeof(struct icmp6hdr) > data_end)
+		return XDP_DROP;
+	off += sizeof(struct eth_hdr);
+	ip6h = data + off;
+	off += sizeof(struct ipv6hdr);
+	icmp_hdr = data + off;
+	icmp_hdr->icmp6_type = 129;
+	icmp_hdr->icmp6_cksum -= 0x0001;
+	ip6h->hop_limit = 4;
+	memcpy(tmp_addr, ip6h->saddr.in6_u.u6_addr32, 16);
+	memcpy(ip6h->saddr.in6_u.u6_addr32, ip6h->daddr.in6_u.u6_addr32, 16);
+	memcpy(ip6h->daddr.in6_u.u6_addr32, tmp_addr, 16);
+	return swap_mac_and_send(data, data_end);
+}
+
+static __attribute__ ((noinline))
+int parse_icmpv6(void *data, void *data_end, __u64 off,
+		 struct packet_description *pckt)
+{
+	struct icmp6hdr *icmp_hdr;
+	struct ipv6hdr *ip6h;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return XDP_DROP;
+	if (icmp_hdr->icmp6_type == 128)
+		return send_icmp6_reply(data, data_end);
+	if (icmp_hdr->icmp6_type != 3)
+		return XDP_PASS;
+	off += sizeof(struct icmp6hdr);
+	ip6h = data + off;
+	if (ip6h + 1 > data_end)
+		return XDP_DROP;
+	pckt->flow.proto = ip6h->nexthdr;
+	pckt->flags |= (1 << 0);
+	memcpy(pckt->flow.srcv6, ip6h->daddr.in6_u.u6_addr32, 16);
+	memcpy(pckt->flow.dstv6, ip6h->saddr.in6_u.u6_addr32, 16);
+	return -1;
+}
+
+static __attribute__ ((noinline))
+int parse_icmp(void *data, void *data_end, __u64 off,
+	       struct packet_description *pckt)
+{
+	struct icmphdr *icmp_hdr;
+	struct iphdr *iph;
+
+	icmp_hdr = data + off;
+	if (icmp_hdr + 1 > data_end)
+		return XDP_DROP;
+	if (icmp_hdr->type == 8)
+		return send_icmp_reply(data, data_end);
+	if ((icmp_hdr->type != 3) || (icmp_hdr->code != 4))
+		return XDP_PASS;
+	off += sizeof(struct icmphdr);
+	iph = data + off;
+	if (iph + 1 > data_end)
+		return XDP_DROP;
+	if (iph->ihl != 5)
+		return XDP_DROP;
+	pckt->flow.proto = iph->protocol;
+	pckt->flags |= (1 << 0);
+	pckt->flow.src = iph->daddr;
+	pckt->flow.dst = iph->saddr;
+	return -1;
+}
+
+static __attribute__ ((noinline))
+__u32 get_packet_hash(struct packet_description *pckt,
+		      bool hash_16bytes)
+{
+	if (hash_16bytes)
+		return jhash_2words(jhash(pckt->flow.srcv6, 16, 12),
+				    pckt->flow.ports, 24);
+	else
+		return jhash_2words(pckt->flow.src, pckt->flow.ports,
+				    24);
+}
+
+__attribute__ ((noinline))
+static bool get_packet_dst(struct real_definition **real,
+			   struct packet_description *pckt,
+			   struct vip_meta *vip_info,
+			   bool is_ipv6, void *lru_map)
+{
+	struct real_pos_lru new_dst_lru = { };
+	bool hash_16bytes = is_ipv6;
+	__u32 *real_pos, hash, key;
+	__u64 cur_time;
+
+	if (vip_info->flags & (1 << 2))
+		hash_16bytes = 1;
+	if (vip_info->flags & (1 << 3)) {
+		pckt->flow.port16[0] = pckt->flow.port16[1];
+		memset(pckt->flow.srcv6, 0, 16);
+	}
+	hash = get_packet_hash(pckt, hash_16bytes);
+	if (hash != 0x358459b7 /* jhash of ipv4 packet */  &&
+	    hash != 0x2f4bc6bb /* jhash of ipv6 packet */)
+		return false;
+	key = 2 * vip_info->vip_num + hash % 2;
+	real_pos = bpf_map_lookup_elem(&ch_rings, &key);
+	if (!real_pos)
+		return false;
+	key = *real_pos;
+	*real = bpf_map_lookup_elem(&reals, &key);
+	if (!(*real))
+		return false;
+	if (!(vip_info->flags & (1 << 1))) {
+		__u32 conn_rate_key = 512 + 2;
+		struct lb_stats *conn_rate_stats =
+		    bpf_map_lookup_elem(&stats, &conn_rate_key);
+
+		if (!conn_rate_stats)
+			return true;
+		cur_time = bpf_ktime_get_ns();
+		if ((cur_time - conn_rate_stats->v2) >> 32 > 0xffFFFF) {
+			conn_rate_stats->v1 = 1;
+			conn_rate_stats->v2 = cur_time;
+		} else {
+			conn_rate_stats->v1 += 1;
+			if (conn_rate_stats->v1 >= 1)
+				return true;
+		}
+		if (pckt->flow.proto == IPPROTO_UDP)
+			new_dst_lru.atime = cur_time;
+		new_dst_lru.pos = key;
+		bpf_map_update_elem(lru_map, &pckt->flow, &new_dst_lru, 0);
+	}
+	return true;
+}
+
+__attribute__ ((noinline))
+static void connection_table_lookup(struct real_definition **real,
+				    struct packet_description *pckt,
+				    void *lru_map)
+{
+
+	struct real_pos_lru *dst_lru;
+	__u64 cur_time;
+	__u32 key;
+
+	dst_lru = bpf_map_lookup_elem(lru_map, &pckt->flow);
+	if (!dst_lru)
+		return;
+	if (pckt->flow.proto == IPPROTO_UDP) {
+		cur_time = bpf_ktime_get_ns();
+		if (cur_time - dst_lru->atime > 300000)
+			return;
+		dst_lru->atime = cur_time;
+	}
+	key = dst_lru->pos;
+	*real = bpf_map_lookup_elem(&reals, &key);
+}
+
+/* don't believe your eyes!
+ * below function has 6 arguments whereas bpf and llvm allow maximum of 5
+ * but since it's _static_ llvm can optimize one argument away
+ */
+__attribute__ ((noinline))
+static int process_l3_headers_v6(struct packet_description *pckt,
+				 __u8 *protocol, __u64 off,
+				 __u16 *pkt_bytes, void *extra_args[2])
+{
+	struct ipv6hdr *ip6h;
+	__u64 iph_len;
+	int action;
+	void *data = extra_args[0];
+	void *data_end = extra_args[1];
+
+	ip6h = data + off;
+	if (ip6h + 1 > data_end)
+		return XDP_DROP;
+	iph_len = sizeof(struct ipv6hdr);
+	*protocol = ip6h->nexthdr;
+	pckt->flow.proto = *protocol;
+	*pkt_bytes = bpf_ntohs(ip6h->payload_len);
+	off += iph_len;
+	if (*protocol == 45) {
+		return XDP_DROP;
+	} else if (*protocol == 59) {
+		action = parse_icmpv6(data, data_end, off, pckt);
+		if (action >= 0)
+			return action;
+	} else {
+		memcpy(pckt->flow.srcv6, ip6h->saddr.in6_u.u6_addr32, 16);
+		memcpy(pckt->flow.dstv6, ip6h->daddr.in6_u.u6_addr32, 16);
+	}
+	return -1;
+}
+
+__attribute__ ((noinline))
+static int process_l3_headers_v4(struct packet_description *pckt,
+				 __u8 *protocol, __u64 off,
+				 __u16 *pkt_bytes, void *extra_args[2])
+{
+	struct iphdr *iph;
+	int action;
+	void *data = extra_args[0];
+	void *data_end = extra_args[1];
+
+	iph = data + off;
+	if (iph + 1 > data_end)
+		return XDP_DROP;
+	if (iph->ihl != 5)
+		return XDP_DROP;
+	*protocol = iph->protocol;
+	pckt->flow.proto = *protocol;
+	*pkt_bytes = bpf_ntohs(iph->tot_len);
+	off += 20;
+	if (iph->frag_off & 65343)
+		return XDP_DROP;
+	if (*protocol == IPPROTO_ICMP) {
+		action = parse_icmp(data, data_end, off, pckt);
+		if (action >= 0)
+			return action;
+	} else {
+		pckt->flow.src = iph->saddr;
+		pckt->flow.dst = iph->daddr;
+	}
+	return -1;
+}
+
+__attribute__ ((noinline))
+static int process_packet(void *data, __u64 off, void *data_end,
+			  bool is_ipv6, struct xdp_md *xdp)
+{
+
+	struct real_definition *dst = NULL;
+	struct packet_description pckt = { };
+	struct vip_definition vip = { };
+	struct lb_stats *data_stats;
+	void *lru_map = &lru_cache;
+	struct vip_meta *vip_info;
+	__u32 lru_stats_key = 513;
+	__u32 mac_addr_pos = 0;
+	__u32 stats_key = 512;
+	struct ctl_value *cval;
+	__u16 pkt_bytes;
+	__u8 protocol;
+	__u32 vip_num;
+	int action;
+	void *extra_args[2] = { data, data_end };
+
+	if (is_ipv6)
+		action = process_l3_headers_v6(&pckt, &protocol, off,
+					       &pkt_bytes, extra_args);
+	else
+		action = process_l3_headers_v4(&pckt, &protocol, off,
+					       &pkt_bytes, extra_args);
+	if (action >= 0)
+		return action;
+	protocol = pckt.flow.proto;
+	if (protocol == IPPROTO_TCP) {
+		if (!parse_tcp(data, data_end, is_ipv6, &pckt))
+			return XDP_DROP;
+	} else if (protocol == IPPROTO_UDP) {
+		if (!parse_udp(data, data_end, is_ipv6, &pckt))
+			return XDP_DROP;
+	} else {
+		return XDP_TX;
+	}
+
+	if (is_ipv6)
+		memcpy(vip.vipv6, pckt.flow.dstv6, 16);
+	else
+		vip.vip = pckt.flow.dst;
+	vip.port = pckt.flow.port16[1];
+	vip.proto = pckt.flow.proto;
+	vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+	if (!vip_info) {
+		vip.port = 0;
+		vip_info = bpf_map_lookup_elem(&vip_map, &vip);
+		if (!vip_info)
+			return XDP_PASS;
+		if (!(vip_info->flags & (1 << 4)))
+			pckt.flow.port16[1] = 0;
+	}
+	if (data_end - data > 1400)
+		return XDP_DROP;
+	data_stats = bpf_map_lookup_elem(&stats, &stats_key);
+	if (!data_stats)
+		return XDP_DROP;
+	data_stats->v1 += 1;
+	if (!dst) {
+		if (vip_info->flags & (1 << 0))
+			pckt.flow.port16[0] = 0;
+		if (!(pckt.flags & (1 << 1)) && !(vip_info->flags & (1 << 1)))
+			connection_table_lookup(&dst, &pckt, lru_map);
+		if (dst)
+			goto out;
+		if (pckt.flow.proto == IPPROTO_TCP) {
+			struct lb_stats *lru_stats =
+			    bpf_map_lookup_elem(&stats, &lru_stats_key);
+
+			if (!lru_stats)
+				return XDP_DROP;
+			if (pckt.flags & (1 << 1))
+				lru_stats->v1 += 1;
+			else
+				lru_stats->v2 += 1;
+		}
+		if (!get_packet_dst(&dst, &pckt, vip_info, is_ipv6, lru_map))
+			return XDP_DROP;
+		data_stats->v2 += 1;
+	}
+out:
+	cval = bpf_map_lookup_elem(&ctl_array, &mac_addr_pos);
+	if (!cval)
+		return XDP_DROP;
+	if (dst->flags & (1 << 0)) {
+		if (!encap_v6(xdp, cval, &pckt, dst, pkt_bytes))
+			return XDP_DROP;
+	} else {
+		if (!encap_v4(xdp, cval, &pckt, dst, pkt_bytes))
+			return XDP_DROP;
+	}
+	vip_num = vip_info->vip_num;
+	data_stats = bpf_map_lookup_elem(&stats, &vip_num);
+	if (!data_stats)
+		return XDP_DROP;
+	data_stats->v1 += 1;
+	data_stats->v2 += pkt_bytes;
+
+	data = (void *)(long)xdp->data;
+	data_end = (void *)(long)xdp->data_end;
+	if (data + 4 > data_end)
+		return XDP_DROP;
+	*(u32 *)data = dst->dst;
+	return XDP_DROP;
+}
+
+SEC("xdp")
+int balancer_ingress_v4(struct xdp_md *ctx)
+{
+	void *data = (void *)(long)ctx->data;
+	void *data_end = (void *)(long)ctx->data_end;
+	struct eth_hdr *eth = data;
+	__u32 eth_proto;
+	__u32 nh_off;
+
+	nh_off = sizeof(struct eth_hdr);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+	eth_proto = bpf_ntohs(eth->eth_proto);
+	if (eth_proto == ETH_P_IP)
+		return process_packet(data, nh_off, data_end, 0, ctx);
+	else
+		return XDP_DROP;
+}
+
+SEC("xdp")
+int balancer_ingress_v6(struct xdp_md *ctx)
+{
+	void *data = (void *)(long)ctx->data;
+	void *data_end = (void *)(long)ctx->data_end;
+	struct eth_hdr *eth = data;
+	__u32 eth_proto;
+	__u32 nh_off;
+
+	nh_off = sizeof(struct eth_hdr);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+	eth_proto = bpf_ntohs(eth->eth_proto);
+	if (eth_proto == ETH_P_IPV6)
+		return process_packet(data, nh_off, data_end, 1, ctx);
+	else
+		return XDP_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_pull_data.c b/tools/testing/selftests/bpf/progs/test_xdp_pull_data.c
new file mode 100644
index 000000000000..c41a21413eaa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_pull_data.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+int xdpf_sz;
+int sinfo_sz;
+int data_len;
+int pull_len;
+
+#define XDP_PACKET_HEADROOM 256
+
+SEC("xdp.frags")
+int xdp_find_sizes(struct xdp_md *ctx)
+{
+	xdpf_sz = sizeof(struct xdp_frame);
+	sinfo_sz = __PAGE_SIZE - XDP_PACKET_HEADROOM -
+		   (ctx->data_end - ctx->data);
+
+	return XDP_PASS;
+}
+
+SEC("xdp.frags")
+int xdp_pull_data_prog(struct xdp_md *ctx)
+{
+	__u8 *data_end = (void *)(long)ctx->data_end;
+	__u8 *data = (void *)(long)ctx->data;
+	__u8 *val_p;
+	int err;
+
+	if (data_len != data_end - data)
+		return XDP_DROP;
+
+	err = bpf_xdp_pull_data(ctx, pull_len);
+	if (err)
+		return XDP_DROP;
+
+	val_p = (void *)(long)ctx->data + 1024;
+	if (val_p + 1 > (void *)(long)ctx->data_end)
+		return XDP_DROP;
+
+	if (*val_p != 0xbb)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_update_frags.c b/tools/testing/selftests/bpf/progs/test_xdp_update_frags.c
new file mode 100644
index 000000000000..2a3496d8e327
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_update_frags.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <bpf/bpf_helpers.h>
+
+int _version SEC("version") = 1;
+
+SEC("xdp.frags")
+int xdp_adjust_frags(struct xdp_md *xdp)
+{
+	__u8 *data_end = (void *)(long)xdp->data_end;
+	__u8 *data = (void *)(long)xdp->data;
+	__u8 val[16] = {};
+	__u32 offset;
+	int err;
+
+	if (data + sizeof(__u32) > data_end)
+		return XDP_DROP;
+
+	offset = *(__u32 *)data;
+	err = bpf_xdp_load_bytes(xdp, offset, val, sizeof(val));
+	if (err < 0)
+		return XDP_DROP;
+
+	if (val[0] != 0xaa || val[15] != 0xaa) /* marker */
+		return XDP_DROP;
+
+	val[0] = 0xbb; /* update the marker */
+	val[15] = 0xbb;
+	err = bpf_xdp_store_bytes(xdp, offset, val, sizeof(val));
+	if (err < 0)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_vlan.c b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c
new file mode 100644
index 000000000000..a80cc5f2f4f2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_vlan.c
@@ -0,0 +1,279 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *  Copyright(c) 2018 Jesper Dangaard Brouer.
+ *
+ * XDP/TC VLAN manipulation example
+ *
+ * GOTCHA: Remember to disable NIC hardware offloading of VLANs,
+ * else the VLAN tags are NOT inlined in the packet payload:
+ *
+ *  # ethtool -K ixgbe2 rxvlan off
+ *
+ * Verify setting:
+ *  # ethtool -k ixgbe2 | grep rx-vlan-offload
+ *  rx-vlan-offload: off
+ *
+ */
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <linux/in.h>
+#include <linux/pkt_cls.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+/* linux/if_vlan.h have not exposed this as UAPI, thus mirror some here
+ *
+ *	struct vlan_hdr - vlan header
+ *	@h_vlan_TCI: priority and VLAN ID
+ *	@h_vlan_encapsulated_proto: packet type ID or len
+ */
+struct _vlan_hdr {
+	__be16 h_vlan_TCI;
+	__be16 h_vlan_encapsulated_proto;
+};
+#define VLAN_PRIO_MASK		0xe000 /* Priority Code Point */
+#define VLAN_PRIO_SHIFT		13
+#define VLAN_CFI_MASK		0x1000 /* Canonical Format Indicator */
+#define VLAN_TAG_PRESENT	VLAN_CFI_MASK
+#define VLAN_VID_MASK		0x0fff /* VLAN Identifier */
+#define VLAN_N_VID		4096
+
+struct parse_pkt {
+	__u16 l3_proto;
+	__u16 l3_offset;
+	__u16 vlan_outer;
+	__u16 vlan_inner;
+	__u8  vlan_outer_offset;
+	__u8  vlan_inner_offset;
+};
+
+char _license[] SEC("license") = "GPL";
+
+static __always_inline
+bool parse_eth_frame(struct ethhdr *eth, void *data_end, struct parse_pkt *pkt)
+{
+	__u16 eth_type;
+	__u8 offset;
+
+	offset = sizeof(*eth);
+	/* Make sure packet is large enough for parsing eth + 2 VLAN headers */
+	if ((void *)eth + offset + (2*sizeof(struct _vlan_hdr)) > data_end)
+		return false;
+
+	eth_type = eth->h_proto;
+
+	/* Handle outer VLAN tag */
+	if (eth_type == bpf_htons(ETH_P_8021Q)
+	    || eth_type == bpf_htons(ETH_P_8021AD)) {
+		struct _vlan_hdr *vlan_hdr;
+
+		vlan_hdr = (void *)eth + offset;
+		pkt->vlan_outer_offset = offset;
+		pkt->vlan_outer = bpf_ntohs(vlan_hdr->h_vlan_TCI)
+				& VLAN_VID_MASK;
+		eth_type        = vlan_hdr->h_vlan_encapsulated_proto;
+		offset += sizeof(*vlan_hdr);
+	}
+
+	/* Handle inner (double) VLAN tag */
+	if (eth_type == bpf_htons(ETH_P_8021Q)
+	    || eth_type == bpf_htons(ETH_P_8021AD)) {
+		struct _vlan_hdr *vlan_hdr;
+
+		vlan_hdr = (void *)eth + offset;
+		pkt->vlan_inner_offset = offset;
+		pkt->vlan_inner = bpf_ntohs(vlan_hdr->h_vlan_TCI)
+				& VLAN_VID_MASK;
+		eth_type        = vlan_hdr->h_vlan_encapsulated_proto;
+		offset += sizeof(*vlan_hdr);
+	}
+
+	pkt->l3_proto = bpf_ntohs(eth_type); /* Convert to host-byte-order */
+	pkt->l3_offset = offset;
+
+	return true;
+}
+
+/* Hint, VLANs are chosen to hit network-byte-order issues */
+#define TESTVLAN 4011 /* 0xFAB */
+// #define TO_VLAN  4000 /* 0xFA0 (hint 0xOA0 = 160) */
+
+SEC("xdp")
+int xdp_drop_vlan_4011(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data     = (void *)(long)ctx->data;
+	struct parse_pkt pkt = { 0 };
+
+	if (!parse_eth_frame(data, data_end, &pkt))
+		return XDP_ABORTED;
+
+	/* Drop specific VLAN ID example */
+	if (pkt.vlan_outer == TESTVLAN)
+		return XDP_ABORTED;
+	/*
+	 * Using XDP_ABORTED makes it possible to record this event,
+	 * via tracepoint xdp:xdp_exception like:
+	 *  # perf record -a -e xdp:xdp_exception
+	 *  # perf script
+	 */
+	return XDP_PASS;
+}
+/*
+Commands to setup VLAN on Linux to test packets gets dropped:
+
+ export ROOTDEV=ixgbe2
+ export VLANID=4011
+ ip link add link $ROOTDEV name $ROOTDEV.$VLANID type vlan id $VLANID
+ ip link set dev  $ROOTDEV.$VLANID up
+
+ ip link set dev $ROOTDEV mtu 1508
+ ip addr add 100.64.40.11/24 dev $ROOTDEV.$VLANID
+
+Load prog with ip tool:
+
+ ip link set $ROOTDEV xdp off
+ ip link set $ROOTDEV xdp object xdp_vlan01_kern.o section xdp_drop_vlan_4011
+
+*/
+
+/* Changing VLAN to zero, have same practical effect as removing the VLAN. */
+#define TO_VLAN	0
+
+SEC("xdp")
+int xdp_vlan_change(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data     = (void *)(long)ctx->data;
+	struct parse_pkt pkt = { 0 };
+
+	if (!parse_eth_frame(data, data_end, &pkt))
+		return XDP_ABORTED;
+
+	/* Change specific VLAN ID */
+	if (pkt.vlan_outer == TESTVLAN) {
+		struct _vlan_hdr *vlan_hdr = data + pkt.vlan_outer_offset;
+
+		/* Modifying VLAN, preserve top 4 bits */
+		vlan_hdr->h_vlan_TCI =
+			bpf_htons((bpf_ntohs(vlan_hdr->h_vlan_TCI) & 0xf000U)
+				  | TO_VLAN);
+	}
+
+	return XDP_PASS;
+}
+
+/*
+ * Show XDP+TC can cooperate, on creating a VLAN rewriter.
+ * 1. Create a XDP prog that can "pop"/remove a VLAN header.
+ * 2. Create a TC-bpf prog that egress can add a VLAN header.
+ */
+
+#ifndef ETH_ALEN /* Ethernet MAC address length */
+#define ETH_ALEN	6	/* bytes */
+#endif
+#define VLAN_HDR_SZ	4	/* bytes */
+
+SEC("xdp")
+int xdp_vlan_remove_outer(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data     = (void *)(long)ctx->data;
+	struct parse_pkt pkt = { 0 };
+	char *dest;
+
+	if (!parse_eth_frame(data, data_end, &pkt))
+		return XDP_ABORTED;
+
+	/* Skip packet if no outer VLAN was detected */
+	if (pkt.vlan_outer_offset == 0)
+		return XDP_PASS;
+
+	/* Moving Ethernet header, dest overlap with src, memmove handle this */
+	dest = data;
+	dest += VLAN_HDR_SZ;
+	/*
+	 * Notice: Taking over vlan_hdr->h_vlan_encapsulated_proto, by
+	 * only moving two MAC addrs (12 bytes), not overwriting last 2 bytes
+	 */
+	__builtin_memmove(dest, data, ETH_ALEN * 2);
+	/* Note: LLVM built-in memmove inlining require size to be constant */
+
+	/* Move start of packet header seen by Linux kernel stack */
+	bpf_xdp_adjust_head(ctx, VLAN_HDR_SZ);
+
+	return XDP_PASS;
+}
+
+static __always_inline
+void shift_mac_4bytes_32bit(void *data)
+{
+	__u32 *p = data;
+
+	/* Assuming VLAN hdr present. The 4 bytes in p[3] that gets
+	 * overwritten, is ethhdr->h_proto and vlan_hdr->h_vlan_TCI.
+	 * The vlan_hdr->h_vlan_encapsulated_proto take over role as
+	 * ethhdr->h_proto.
+	 */
+	p[3] = p[2];
+	p[2] = p[1];
+	p[1] = p[0];
+}
+
+SEC("xdp")
+int xdp_vlan_remove_outer2(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data     = (void *)(long)ctx->data;
+	struct ethhdr *orig_eth = data;
+	struct parse_pkt pkt = { 0 };
+
+	if (!parse_eth_frame(orig_eth, data_end, &pkt))
+		return XDP_ABORTED;
+
+	/* Skip packet if no outer VLAN was detected */
+	if (pkt.vlan_outer_offset == 0)
+		return XDP_PASS;
+
+	/* Simply shift down MAC addrs 4 bytes, overwrite h_proto + TCI */
+	shift_mac_4bytes_32bit(data);
+
+	/* Move start of packet header seen by Linux kernel stack */
+	bpf_xdp_adjust_head(ctx, VLAN_HDR_SZ);
+
+	return XDP_PASS;
+}
+
+/*=====================================
+ *  BELOW: TC-hook based ebpf programs
+ * ====================================
+ * The TC-clsact eBPF programs (currently) need to be attach via TC commands
+ */
+
+SEC("tc")
+int tc_vlan_push(struct __sk_buff *ctx)
+{
+	bpf_skb_vlan_push(ctx, bpf_htons(ETH_P_8021Q), TESTVLAN);
+
+	return TC_ACT_OK;
+}
+/*
+Commands to setup TC to use above bpf prog:
+
+export ROOTDEV=ixgbe2
+export FILE=xdp_vlan01_kern.o
+
+# Re-attach clsact to clear/flush existing role
+tc qdisc del dev $ROOTDEV clsact 2> /dev/null ;\
+tc qdisc add dev $ROOTDEV clsact
+
+# Attach BPF prog EGRESS
+tc filter add dev $ROOTDEV egress \
+  prio 1 handle 1 bpf da obj $FILE sec tc_vlan_push
+
+tc filter show dev $ROOTDEV egress
+*/
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_frags_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_frags_helpers.c
new file mode 100644
index 000000000000..97ed625bb70a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_frags_helpers.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define IFINDEX_LO	1
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CPUMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_cpumap_val));
+	__uint(max_entries, 4);
+} cpu_map SEC(".maps");
+
+SEC("xdp/cpumap")
+int xdp_dummy_cm(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+SEC("xdp.frags/cpumap")
+int xdp_dummy_cm_frags(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c
new file mode 100644
index 000000000000..3619239b01b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_with_cpumap_helpers.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+#define IFINDEX_LO	1
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CPUMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_cpumap_val));
+	__uint(max_entries, 4);
+} cpu_map SEC(".maps");
+
+__u32 redirect_count = 0;
+
+SEC("xdp")
+int xdp_redir_prog(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&cpu_map, 0, 0);
+}
+
+SEC("xdp")
+int xdp_dummy_prog(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+SEC("xdp/cpumap")
+int xdp_dummy_cm(struct xdp_md *ctx)
+{
+	if (bpf_get_smp_processor_id() == 0)
+		redirect_count++;
+
+	if (ctx->ingress_ifindex == IFINDEX_LO)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
+
+SEC("xdp.frags/cpumap")
+int xdp_dummy_cm_frags(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_frags_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_frags_helpers.c
new file mode 100644
index 000000000000..cdcf7de7ec8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_frags_helpers.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 4);
+} dm_ports SEC(".maps");
+
+/* valid program on DEVMAP entry via SEC name;
+ * has access to egress and ingress ifindex
+ */
+SEC("xdp/devmap")
+int xdp_dummy_dm(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+SEC("xdp.frags/devmap")
+int xdp_dummy_dm_frags(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_helpers.c b/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_helpers.c
new file mode 100644
index 000000000000..92b65a485d4a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_xdp_with_devmap_helpers.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 4);
+} dm_ports SEC(".maps");
+
+SEC("xdp")
+int xdp_redir_prog(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&dm_ports, 0, 0);
+}
+
+/* invalid program on DEVMAP entry;
+ * SEC name means expected attach type not set
+ */
+SEC("xdp")
+int xdp_dummy_prog(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+/* valid program on DEVMAP entry via SEC name;
+ * has access to egress and ingress ifindex
+ */
+SEC("xdp/devmap")
+int xdp_dummy_dm(struct xdp_md *ctx)
+{
+	char fmt[] = "devmap redirect: dev %u -> dev %u len %u\n";
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	unsigned int len = data_end - data;
+
+	bpf_trace_printk(fmt, sizeof(fmt),
+			 ctx->ingress_ifindex, ctx->egress_ifindex, len);
+
+	return XDP_PASS;
+}
+
+SEC("xdp.frags/devmap")
+int xdp_dummy_dm_frags(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/timer.c b/tools/testing/selftests/bpf/progs/timer.c
new file mode 100644
index 000000000000..4c677c001258
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer.c
@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/bpf.h>
+#include <time.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+struct hmap_elem {
+	int counter;
+	struct bpf_timer timer;
+	struct bpf_spin_lock lock; /* unused */
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap_malloc SEC(".maps");
+
+struct elem {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 4);
+	__type(key, int);
+	__type(value, struct elem);
+} lru SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} abs_timer SEC(".maps"), soft_timer_pinned SEC(".maps"), abs_timer_pinned SEC(".maps"),
+	race_array SEC(".maps");
+
+__u64 bss_data;
+__u64 abs_data;
+__u64 err;
+__u64 ok;
+__u64 callback_check = 52;
+__u64 callback2_check = 52;
+__u64 pinned_callback_check;
+__s32 pinned_cpu;
+
+#define ARRAY 1
+#define HTAB 2
+#define HTAB_MALLOC 3
+#define LRU 4
+
+/* callback for array and lru timers */
+static int timer_cb1(void *map, int *key, struct bpf_timer *timer)
+{
+	/* increment bss variable twice.
+	 * Once via array timer callback and once via lru timer callback
+	 */
+	bss_data += 5;
+
+	/* *key == 0 - the callback was called for array timer.
+	 * *key == 4 - the callback was called from lru timer.
+	 */
+	if (*key == ARRAY) {
+		struct bpf_timer *lru_timer;
+		int lru_key = LRU;
+
+		/* rearm array timer to be called again in ~35 seconds */
+		if (bpf_timer_start(timer, 1ull << 35, 0) != 0)
+			err |= 1;
+
+		lru_timer = bpf_map_lookup_elem(&lru, &lru_key);
+		if (!lru_timer)
+			return 0;
+		bpf_timer_set_callback(lru_timer, timer_cb1);
+		if (bpf_timer_start(lru_timer, 0, 0) != 0)
+			err |= 2;
+	} else if (*key == LRU) {
+		int lru_key, i;
+
+		for (i = LRU + 1;
+		     i <= 100  /* for current LRU eviction algorithm this number
+				* should be larger than ~ lru->max_entries * 2
+				*/;
+		     i++) {
+			struct elem init = {};
+
+			/* lru_key cannot be used as loop induction variable
+			 * otherwise the loop will be unbounded.
+			 */
+			lru_key = i;
+
+			/* add more elements into lru map to push out current
+			 * element and force deletion of this timer
+			 */
+			bpf_map_update_elem(map, &lru_key, &init, 0);
+			/* look it up to bump it into active list */
+			bpf_map_lookup_elem(map, &lru_key);
+
+			/* keep adding until *key changes underneath,
+			 * which means that key/timer memory was reused
+			 */
+			if (*key != LRU)
+				break;
+		}
+
+		/* check that the timer was removed */
+		if (bpf_timer_cancel(timer) != -EINVAL)
+			err |= 4;
+		ok |= 1;
+	}
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG2(test1, int, a)
+{
+	struct bpf_timer *arr_timer, *lru_timer;
+	struct elem init = {};
+	int lru_key = LRU;
+	int array_key = ARRAY;
+
+	arr_timer = bpf_map_lookup_elem(&array, &array_key);
+	if (!arr_timer)
+		return 0;
+	bpf_timer_init(arr_timer, &array, CLOCK_MONOTONIC);
+
+	bpf_map_update_elem(&lru, &lru_key, &init, 0);
+	lru_timer = bpf_map_lookup_elem(&lru, &lru_key);
+	if (!lru_timer)
+		return 0;
+	bpf_timer_init(lru_timer, &lru, CLOCK_MONOTONIC);
+
+	bpf_timer_set_callback(arr_timer, timer_cb1);
+	bpf_timer_start(arr_timer, 0 /* call timer_cb1 asap */, 0);
+
+	/* init more timers to check that array destruction
+	 * doesn't leak timer memory.
+	 */
+	array_key = 0;
+	arr_timer = bpf_map_lookup_elem(&array, &array_key);
+	if (!arr_timer)
+		return 0;
+	bpf_timer_init(arr_timer, &array, CLOCK_MONOTONIC);
+	return 0;
+}
+
+/* callback for prealloc and non-prealloca hashtab timers */
+static int timer_cb2(void *map, int *key, struct hmap_elem *val)
+{
+	if (*key == HTAB)
+		callback_check--;
+	else
+		callback2_check--;
+	if (val->counter > 0 && --val->counter) {
+		/* re-arm the timer again to execute after 1 usec */
+		bpf_timer_start(&val->timer, 1000, 0);
+	} else if (*key == HTAB) {
+		struct bpf_timer *arr_timer;
+		int array_key = ARRAY;
+
+		/* cancel arr_timer otherwise bpf_fentry_test1 prog
+		 * will stay alive forever.
+		 */
+		arr_timer = bpf_map_lookup_elem(&array, &array_key);
+		if (!arr_timer)
+			return 0;
+		if (bpf_timer_cancel(arr_timer) != 1)
+			/* bpf_timer_cancel should return 1 to indicate
+			 * that arr_timer was active at this time
+			 */
+			err |= 8;
+
+		/* try to cancel ourself. It shouldn't deadlock. */
+		if (bpf_timer_cancel(&val->timer) != -EDEADLK)
+			err |= 16;
+
+		/* delete this key and this timer anyway.
+		 * It shouldn't deadlock either.
+		 */
+		bpf_map_delete_elem(map, key);
+
+		/* in preallocated hashmap both 'key' and 'val' could have been
+		 * reused to store another map element (like in LRU above),
+		 * but in controlled test environment the below test works.
+		 * It's not a use-after-free. The memory is owned by the map.
+		 */
+		if (bpf_timer_start(&val->timer, 1000, 0) != -EINVAL)
+			err |= 32;
+		ok |= 2;
+	} else {
+		if (*key != HTAB_MALLOC)
+			err |= 64;
+
+		/* try to cancel ourself. It shouldn't deadlock. */
+		if (bpf_timer_cancel(&val->timer) != -EDEADLK)
+			err |= 128;
+
+		/* delete this key and this timer anyway.
+		 * It shouldn't deadlock either.
+		 */
+		bpf_map_delete_elem(map, key);
+
+		ok |= 4;
+	}
+	return 0;
+}
+
+int bpf_timer_test(void)
+{
+	struct hmap_elem *val;
+	int key = HTAB, key_malloc = HTAB_MALLOC;
+
+	val = bpf_map_lookup_elem(&hmap, &key);
+	if (val) {
+		if (bpf_timer_init(&val->timer, &hmap, CLOCK_BOOTTIME) != 0)
+			err |= 512;
+		bpf_timer_set_callback(&val->timer, timer_cb2);
+		bpf_timer_start(&val->timer, 1000, 0);
+	}
+	val = bpf_map_lookup_elem(&hmap_malloc, &key_malloc);
+	if (val) {
+		if (bpf_timer_init(&val->timer, &hmap_malloc, CLOCK_BOOTTIME) != 0)
+			err |= 1024;
+		bpf_timer_set_callback(&val->timer, timer_cb2);
+		bpf_timer_start(&val->timer, 1000, 0);
+	}
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test2")
+int BPF_PROG2(test2, int, a, int, b)
+{
+	struct hmap_elem init = {}, *val;
+	int key = HTAB, key_malloc = HTAB_MALLOC;
+
+	init.counter = 10; /* number of times to trigger timer_cb2 */
+	bpf_map_update_elem(&hmap, &key, &init, 0);
+	val = bpf_map_lookup_elem(&hmap, &key);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap, CLOCK_BOOTTIME);
+	/* update the same key to free the timer */
+	bpf_map_update_elem(&hmap, &key, &init, 0);
+
+	bpf_map_update_elem(&hmap_malloc, &key_malloc, &init, 0);
+	val = bpf_map_lookup_elem(&hmap_malloc, &key_malloc);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap_malloc, CLOCK_BOOTTIME);
+	/* update the same key to free the timer */
+	bpf_map_update_elem(&hmap_malloc, &key_malloc, &init, 0);
+
+	/* init more timers to check that htab operations
+	 * don't leak timer memory.
+	 */
+	key = 0;
+	bpf_map_update_elem(&hmap, &key, &init, 0);
+	val = bpf_map_lookup_elem(&hmap, &key);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap, CLOCK_BOOTTIME);
+	bpf_map_delete_elem(&hmap, &key);
+	bpf_map_update_elem(&hmap, &key, &init, 0);
+	val = bpf_map_lookup_elem(&hmap, &key);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap, CLOCK_BOOTTIME);
+
+	/* and with non-prealloc htab */
+	key_malloc = 0;
+	bpf_map_update_elem(&hmap_malloc, &key_malloc, &init, 0);
+	val = bpf_map_lookup_elem(&hmap_malloc, &key_malloc);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap_malloc, CLOCK_BOOTTIME);
+	bpf_map_delete_elem(&hmap_malloc, &key_malloc);
+	bpf_map_update_elem(&hmap_malloc, &key_malloc, &init, 0);
+	val = bpf_map_lookup_elem(&hmap_malloc, &key_malloc);
+	if (val)
+		bpf_timer_init(&val->timer, &hmap_malloc, CLOCK_BOOTTIME);
+
+	return bpf_timer_test();
+}
+
+/* callback for absolute timer */
+static int timer_cb3(void *map, int *key, struct bpf_timer *timer)
+{
+	abs_data += 6;
+
+	if (abs_data < 12) {
+		bpf_timer_start(timer, bpf_ktime_get_boot_ns() + 1000,
+				BPF_F_TIMER_ABS);
+	} else {
+		/* Re-arm timer ~35 seconds in future */
+		bpf_timer_start(timer, bpf_ktime_get_boot_ns() + (1ull << 35),
+				BPF_F_TIMER_ABS);
+	}
+
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test3")
+int BPF_PROG2(test3, int, a)
+{
+	int key = 0;
+	struct bpf_timer *timer;
+
+	bpf_printk("test3");
+
+	timer = bpf_map_lookup_elem(&abs_timer, &key);
+	if (timer) {
+		if (bpf_timer_init(timer, &abs_timer, CLOCK_BOOTTIME) != 0)
+			err |= 2048;
+		bpf_timer_set_callback(timer, timer_cb3);
+		bpf_timer_start(timer, bpf_ktime_get_boot_ns() + 1000,
+				BPF_F_TIMER_ABS);
+	}
+
+	return 0;
+}
+
+/* callback for pinned timer */
+static int timer_cb_pinned(void *map, int *key, struct bpf_timer *timer)
+{
+	__s32 cpu = bpf_get_smp_processor_id();
+
+	if (cpu != pinned_cpu)
+		err |= 16384;
+
+	pinned_callback_check++;
+	return 0;
+}
+
+static void test_pinned_timer(bool soft)
+{
+	int key = 0;
+	void *map;
+	struct bpf_timer *timer;
+	__u64 flags = BPF_F_TIMER_CPU_PIN;
+	__u64 start_time;
+
+	if (soft) {
+		map = &soft_timer_pinned;
+		start_time = 0;
+	} else {
+		map = &abs_timer_pinned;
+		start_time = bpf_ktime_get_boot_ns();
+		flags |= BPF_F_TIMER_ABS;
+	}
+
+	timer = bpf_map_lookup_elem(map, &key);
+	if (timer) {
+		if (bpf_timer_init(timer, map, CLOCK_BOOTTIME) != 0)
+			err |= 4096;
+		bpf_timer_set_callback(timer, timer_cb_pinned);
+		pinned_cpu = bpf_get_smp_processor_id();
+		bpf_timer_start(timer, start_time + 1000, flags);
+	} else {
+		err |= 8192;
+	}
+}
+
+SEC("fentry/bpf_fentry_test4")
+int BPF_PROG2(test4, int, a)
+{
+	bpf_printk("test4");
+	test_pinned_timer(true);
+
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test5")
+int BPF_PROG2(test5, int, a)
+{
+	bpf_printk("test5");
+	test_pinned_timer(false);
+
+	return 0;
+}
+
+static int race_timer_callback(void *race_array, int *race_key, struct bpf_timer *timer)
+{
+	bpf_timer_start(timer, 1000000, 0);
+	return 0;
+}
+
+SEC("syscall")
+int race(void *ctx)
+{
+	struct bpf_timer *timer;
+	int err, race_key = 0;
+	struct elem init;
+
+	__builtin_memset(&init, 0, sizeof(struct elem));
+	bpf_map_update_elem(&race_array, &race_key, &init, BPF_ANY);
+
+	timer = bpf_map_lookup_elem(&race_array, &race_key);
+	if (!timer)
+		return 1;
+
+	err = bpf_timer_init(timer, &race_array, CLOCK_MONOTONIC);
+	if (err && err != -EBUSY)
+		return 1;
+
+	bpf_timer_set_callback(timer, race_timer_callback);
+	bpf_timer_start(timer, 0, 0);
+	bpf_timer_cancel(timer);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_crash.c b/tools/testing/selftests/bpf/progs/timer_crash.c
new file mode 100644
index 000000000000..f8f7944e70da
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_crash.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct map_elem {
+	struct bpf_timer timer;
+	struct bpf_spin_lock lock;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct map_elem);
+} amap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct map_elem);
+} hmap SEC(".maps");
+
+int pid = 0;
+int crash_map = 0; /* 0 for amap, 1 for hmap */
+
+SEC("fentry/do_nanosleep")
+int sys_enter(void *ctx)
+{
+	struct map_elem *e, value = {};
+	void *map = crash_map ? (void *)&hmap : (void *)&amap;
+
+	if (bpf_get_current_task_btf()->tgid != pid)
+		return 0;
+
+	*(void **)&value = (void *)0xdeadcaf3;
+
+	bpf_map_update_elem(map, &(int){0}, &value, 0);
+	/* For array map, doing bpf_map_update_elem will do a
+	 * check_and_free_timer_in_array, which will trigger the crash if timer
+	 * pointer was overwritten, for hmap we need to use bpf_timer_cancel.
+	 */
+	if (crash_map == 1) {
+		e = bpf_map_lookup_elem(map, &(int){0});
+		if (!e)
+			return 0;
+		bpf_timer_cancel(&e->timer);
+	}
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/timer_failure.c b/tools/testing/selftests/bpf/progs/timer_failure.c
new file mode 100644
index 000000000000..5a2e9dabf1c6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_failure.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <time.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct elem {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} timer_map SEC(".maps");
+
+__naked __noinline __used
+static unsigned long timer_cb_ret_bad()
+{
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"if r0 s> 1000 goto 1f;"
+		"r0 = 0;"
+	"1:"
+		"goto +0;" /* checkpoint */
+		/* async callback is expected to return 0, so branch above
+		 * skipping r0 = 0; should lead to a failure, but if exit
+		 * instruction doesn't enforce r0's precision, this callback
+		 * will be successfully verified
+		 */
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32)
+		: __clobber_common
+	);
+}
+
+SEC("fentry/bpf_fentry_test1")
+__log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure
+/* check that fallthrough code path marks r0 as precise */
+__msg("mark_precise: frame0: regs=r0 stack= before")
+__msg(": (85) call bpf_get_prandom_u32#7") /* anchor message */
+/* check that branch code path marks r0 as precise */
+__msg("mark_precise: frame0: regs=r0 stack= before ") __msg(": (85) call bpf_get_prandom_u32#7")
+__msg("should have been in [0, 0]")
+long BPF_PROG2(test_bad_ret, int, a)
+{
+	int key = 0;
+	struct bpf_timer *timer;
+
+	timer = bpf_map_lookup_elem(&timer_map, &key);
+	if (timer) {
+		bpf_timer_init(timer, &timer_map, CLOCK_BOOTTIME);
+		bpf_timer_set_callback(timer, timer_cb_ret_bad);
+		bpf_timer_start(timer, 1000, 0);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_interrupt.c b/tools/testing/selftests/bpf/progs/timer_interrupt.c
new file mode 100644
index 000000000000..19180a455f40
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_interrupt.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define CLOCK_MONOTONIC		1
+
+int preempt_count;
+int in_interrupt;
+int in_interrupt_cb;
+
+struct elem {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+static int timer_in_interrupt(void *map, int *key, struct bpf_timer *timer)
+{
+	preempt_count = get_preempt_count();
+	in_interrupt_cb = bpf_in_interrupt();
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test_timer_interrupt)
+{
+	struct bpf_timer *timer;
+	int key = 0;
+
+	timer = bpf_map_lookup_elem(&array, &key);
+	if (!timer)
+		return 0;
+
+	in_interrupt = bpf_in_interrupt();
+	bpf_timer_init(timer, &array, CLOCK_MONOTONIC);
+	bpf_timer_set_callback(timer, timer_in_interrupt);
+	bpf_timer_start(timer, 0, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_lockup.c b/tools/testing/selftests/bpf/progs/timer_lockup.c
new file mode 100644
index 000000000000..3e520133281e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_lockup.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <time.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct elem {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} timer1_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} timer2_map SEC(".maps");
+
+int timer1_err;
+int timer2_err;
+
+static int timer_cb1(void *map, int *k, struct elem *v)
+{
+	struct bpf_timer *timer;
+	int key = 0;
+
+	timer = bpf_map_lookup_elem(&timer2_map, &key);
+	if (timer)
+		timer2_err = bpf_timer_cancel(timer);
+
+	return 0;
+}
+
+static int timer_cb2(void *map, int *k, struct elem *v)
+{
+	struct bpf_timer *timer;
+	int key = 0;
+
+	timer = bpf_map_lookup_elem(&timer1_map, &key);
+	if (timer)
+		timer1_err = bpf_timer_cancel(timer);
+
+	return 0;
+}
+
+SEC("tc")
+int timer1_prog(void *ctx)
+{
+	struct bpf_timer *timer;
+	int key = 0;
+
+	timer = bpf_map_lookup_elem(&timer1_map, &key);
+	if (timer) {
+		bpf_timer_init(timer, &timer1_map, CLOCK_BOOTTIME);
+		bpf_timer_set_callback(timer, timer_cb1);
+		bpf_timer_start(timer, 1, BPF_F_TIMER_CPU_PIN);
+	}
+
+	return 0;
+}
+
+SEC("tc")
+int timer2_prog(void *ctx)
+{
+	struct bpf_timer *timer;
+	int key = 0;
+
+	timer = bpf_map_lookup_elem(&timer2_map, &key);
+	if (timer) {
+		bpf_timer_init(timer, &timer2_map, CLOCK_BOOTTIME);
+		bpf_timer_set_callback(timer, timer_cb2);
+		bpf_timer_start(timer, 1, BPF_F_TIMER_CPU_PIN);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_mim.c b/tools/testing/selftests/bpf/progs/timer_mim.c
new file mode 100644
index 000000000000..50ebc3f68522
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_mim.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/bpf.h>
+#include <time.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+struct hmap_elem {
+	int pad; /* unused */
+	struct bpf_timer timer;
+};
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1024);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} inner_htab SEC(".maps");
+
+#define ARRAY_KEY 1
+#define HASH_KEY 1234
+
+struct outer_arr {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+	__array(values, struct inner_map);
+} outer_arr SEC(".maps") = {
+	.values = { [ARRAY_KEY] = &inner_htab },
+};
+
+__u64 err;
+__u64 ok;
+__u64 cnt;
+
+static int timer_cb1(void *map, int *key, struct hmap_elem *val);
+
+static int timer_cb2(void *map, int *key, struct hmap_elem *val)
+{
+	cnt++;
+	bpf_timer_set_callback(&val->timer, timer_cb1);
+	if (bpf_timer_start(&val->timer, 1000, 0))
+		err |= 1;
+	ok |= 1;
+	return 0;
+}
+
+/* callback for inner hash map */
+static int timer_cb1(void *map, int *key, struct hmap_elem *val)
+{
+	cnt++;
+	bpf_timer_set_callback(&val->timer, timer_cb2);
+	if (bpf_timer_start(&val->timer, 1000, 0))
+		err |= 2;
+	/* Do a lookup to make sure 'map' and 'key' pointers are correct */
+	bpf_map_lookup_elem(map, key);
+	ok |= 2;
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test1, int a)
+{
+	struct hmap_elem init = {};
+	struct bpf_map *inner_map;
+	struct hmap_elem *val;
+	int array_key = ARRAY_KEY;
+	int hash_key = HASH_KEY;
+
+	inner_map = bpf_map_lookup_elem(&outer_arr, &array_key);
+	if (!inner_map)
+		return 0;
+
+	bpf_map_update_elem(inner_map, &hash_key, &init, 0);
+	val = bpf_map_lookup_elem(inner_map, &hash_key);
+	if (!val)
+		return 0;
+
+	bpf_timer_init(&val->timer, inner_map, CLOCK_MONOTONIC);
+	if (bpf_timer_set_callback(&val->timer, timer_cb1))
+		err |= 4;
+	if (bpf_timer_start(&val->timer, 0, 0))
+		err |= 8;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/timer_mim_reject.c b/tools/testing/selftests/bpf/progs/timer_mim_reject.c
new file mode 100644
index 000000000000..dd3f1ed6d6e6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/timer_mim_reject.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/bpf.h>
+#include <time.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+struct hmap_elem {
+	int pad; /* unused */
+	struct bpf_timer timer;
+};
+
+struct inner_map {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1024);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} inner_htab SEC(".maps");
+
+#define ARRAY_KEY 1
+#define ARRAY_KEY2 2
+#define HASH_KEY 1234
+
+struct outer_arr {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+	__array(values, struct inner_map);
+} outer_arr SEC(".maps") = {
+	.values = { [ARRAY_KEY] = &inner_htab },
+};
+
+__u64 err;
+__u64 ok;
+__u64 cnt;
+
+/* callback for inner hash map */
+static int timer_cb(void *map, int *key, struct hmap_elem *val)
+{
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+int BPF_PROG(test1, int a)
+{
+	struct hmap_elem init = {};
+	struct bpf_map *inner_map, *inner_map2;
+	struct hmap_elem *val;
+	int array_key = ARRAY_KEY;
+	int array_key2 = ARRAY_KEY2;
+	int hash_key = HASH_KEY;
+
+	inner_map = bpf_map_lookup_elem(&outer_arr, &array_key);
+	if (!inner_map)
+		return 0;
+
+	inner_map2 = bpf_map_lookup_elem(&outer_arr, &array_key2);
+	if (!inner_map2)
+		return 0;
+	bpf_map_update_elem(inner_map, &hash_key, &init, 0);
+	val = bpf_map_lookup_elem(inner_map, &hash_key);
+	if (!val)
+		return 0;
+
+	bpf_timer_init(&val->timer, inner_map2, CLOCK_MONOTONIC);
+	if (bpf_timer_set_callback(&val->timer, timer_cb))
+		err |= 4;
+	if (bpf_timer_start(&val->timer, 0, 0))
+		err |= 8;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/token_lsm.c b/tools/testing/selftests/bpf/progs/token_lsm.c
new file mode 100644
index 000000000000..a6002d073b1b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/token_lsm.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+int my_pid;
+int reject_capable;
+int reject_cmd;
+
+SEC("lsm/bpf_token_capable")
+int BPF_PROG(token_capable, struct bpf_token *token, int cap)
+{
+	if (my_pid == 0 || my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+	if (reject_capable)
+		return -1;
+	return 0;
+}
+
+SEC("lsm/bpf_token_cmd")
+int BPF_PROG(token_cmd, struct bpf_token *token, enum bpf_cmd cmd)
+{
+	if (my_pid == 0 || my_pid != (bpf_get_current_pid_tgid() >> 32))
+		return 0;
+	if (reject_cmd)
+		return -1;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/trace_dummy_st_ops.c b/tools/testing/selftests/bpf/progs/trace_dummy_st_ops.c
new file mode 100644
index 000000000000..00a4be9d3074
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/trace_dummy_st_ops.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+int val = 0;
+
+SEC("fentry/test_1")
+int BPF_PROG(fentry_test_1, __u64 *st_ops_ctx)
+{
+	__u64 state;
+
+	/* Read the traced st_ops arg1 which is a pointer */
+	bpf_probe_read_kernel(&state, sizeof(__u64), (void *)st_ops_ctx);
+	/* Read state->val */
+	bpf_probe_read_kernel(&val, sizeof(__u32), (void *)state);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/trace_printk.c b/tools/testing/selftests/bpf/progs/trace_printk.c
new file mode 100644
index 000000000000..6695478c2b25
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/trace_printk.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020, Oracle and/or its affiliates.
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int trace_printk_ret = 0;
+int trace_printk_ran = 0;
+
+const char fmt[] = "Testing,testing %d\n";
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int sys_enter(void *ctx)
+{
+	trace_printk_ret = bpf_trace_printk(fmt, sizeof(fmt),
+					    ++trace_printk_ran);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/trace_vprintk.c b/tools/testing/selftests/bpf/progs/trace_vprintk.c
new file mode 100644
index 000000000000..969306cd4f33
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/trace_vprintk.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int null_data_vprintk_ret = 0;
+int trace_vprintk_ret = 0;
+int trace_vprintk_ran = 0;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int sys_enter(void *ctx)
+{
+	static const char one[] = "1";
+	static const char three[] = "3";
+	static const char five[] = "5";
+	static const char seven[] = "7";
+	static const char nine[] = "9";
+	static const char f[] = "%pS\n";
+
+	/* runner doesn't search for \t, just ensure it compiles */
+	bpf_printk("\t");
+
+	trace_vprintk_ret = __bpf_vprintk("%s,%d,%s,%d,%s,%d,%s,%d,%s,%d %d\n",
+		one, 2, three, 4, five, 6, seven, 8, nine, 10, ++trace_vprintk_ran);
+
+	/* non-NULL fmt w/ NULL data should result in error */
+	null_data_vprintk_ret = bpf_trace_vprintk(f, sizeof(f), NULL, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/tracing_failure.c b/tools/testing/selftests/bpf/progs/tracing_failure.c
new file mode 100644
index 000000000000..65e485c4468c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tracing_failure.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("?fentry/bpf_spin_lock")
+int BPF_PROG(test_spin_lock, struct bpf_spin_lock *lock)
+{
+	return 0;
+}
+
+SEC("?fentry/bpf_spin_unlock")
+int BPF_PROG(test_spin_unlock, struct bpf_spin_lock *lock)
+{
+	return 0;
+}
+
+SEC("?fentry/__rcu_read_lock")
+int BPF_PROG(tracing_deny)
+{
+	return 0;
+}
+
+SEC("?fexit/do_exit")
+int BPF_PROG(fexit_noreturns)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/tracing_struct.c b/tools/testing/selftests/bpf/progs/tracing_struct.c
new file mode 100644
index 000000000000..d460732e2023
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tracing_struct.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct bpf_testmod_struct_arg_1 {
+	int a;
+};
+struct bpf_testmod_struct_arg_2 {
+	long a;
+	long b;
+};
+
+struct bpf_testmod_struct_arg_3 {
+	int a;
+	int b[];
+};
+
+union bpf_testmod_union_arg_1 {
+	char a;
+	short b;
+	struct bpf_testmod_struct_arg_1 arg;
+};
+
+union bpf_testmod_union_arg_2 {
+	int a;
+	long b;
+	struct bpf_testmod_struct_arg_2 arg;
+};
+
+long t1_a_a, t1_a_b, t1_b, t1_c, t1_ret, t1_nregs;
+__u64 t1_reg0, t1_reg1, t1_reg2, t1_reg3;
+long t2_a, t2_b_a, t2_b_b, t2_c, t2_ret;
+long t3_a, t3_b, t3_c_a, t3_c_b, t3_ret;
+long t4_a_a, t4_b, t4_c, t4_d, t4_e_a, t4_e_b, t4_ret;
+long t5_ret;
+int t6;
+
+long ut1_a_a, ut1_b, ut1_c;
+long ut2_a, ut2_b_a, ut2_b_b;
+
+SEC("fentry/bpf_testmod_test_struct_arg_1")
+int BPF_PROG2(test_struct_arg_1, struct bpf_testmod_struct_arg_2, a, int, b, int, c)
+{
+	t1_a_a = a.a;
+	t1_a_b = a.b;
+	t1_b = b;
+	t1_c = c;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_1")
+int BPF_PROG2(test_struct_arg_2, struct bpf_testmod_struct_arg_2, a, int, b, int, c, int, ret)
+{
+	t1_nregs =  bpf_get_func_arg_cnt(ctx);
+	/* a.a */
+	bpf_get_func_arg(ctx, 0, &t1_reg0);
+	/* a.b */
+	bpf_get_func_arg(ctx, 1, &t1_reg1);
+	/* b */
+	bpf_get_func_arg(ctx, 2, &t1_reg2);
+	t1_reg2 = (int)t1_reg2;
+	/* c */
+	bpf_get_func_arg(ctx, 3, &t1_reg3);
+	t1_reg3 = (int)t1_reg3;
+
+	t1_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_2")
+int BPF_PROG2(test_struct_arg_3, int, a, struct bpf_testmod_struct_arg_2, b, int, c)
+{
+	t2_a = a;
+	t2_b_a = b.a;
+	t2_b_b = b.b;
+	t2_c = c;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_2")
+int BPF_PROG2(test_struct_arg_4, int, a, struct bpf_testmod_struct_arg_2, b, int, c, int, ret)
+{
+	t2_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_3")
+int BPF_PROG2(test_struct_arg_5, int, a, int, b, struct bpf_testmod_struct_arg_2, c)
+{
+	t3_a = a;
+	t3_b = b;
+	t3_c_a = c.a;
+	t3_c_b = c.b;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_3")
+int BPF_PROG2(test_struct_arg_6, int, a, int, b, struct bpf_testmod_struct_arg_2, c, int, ret)
+{
+	t3_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_4")
+int BPF_PROG2(test_struct_arg_7, struct bpf_testmod_struct_arg_1, a, int, b,
+	     int, c, int, d, struct bpf_testmod_struct_arg_2, e)
+{
+	t4_a_a = a.a;
+	t4_b = b;
+	t4_c = c;
+	t4_d = d;
+	t4_e_a = e.a;
+	t4_e_b = e.b;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_4")
+int BPF_PROG2(test_struct_arg_8, struct bpf_testmod_struct_arg_1, a, int, b,
+	     int, c, int, d, struct bpf_testmod_struct_arg_2, e, int, ret)
+{
+	t4_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_5")
+int BPF_PROG2(test_struct_arg_9)
+{
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_5")
+int BPF_PROG2(test_struct_arg_10, int, ret)
+{
+	t5_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_6")
+int BPF_PROG2(test_struct_arg_11, struct bpf_testmod_struct_arg_3 *, a)
+{
+	t6 = a->b[0];
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_union_arg_1")
+int BPF_PROG2(test_union_arg_1, union bpf_testmod_union_arg_1, a, int, b, int, c)
+{
+	ut1_a_a = a.arg.a;
+	ut1_b = b;
+	ut1_c = c;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_union_arg_2")
+int BPF_PROG2(test_union_arg_2, int, a, union bpf_testmod_union_arg_2, b)
+{
+	ut2_a = a;
+	ut2_b_a = b.arg.a;
+	ut2_b_b = b.arg.b;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/tracing_struct_many_args.c b/tools/testing/selftests/bpf/progs/tracing_struct_many_args.c
new file mode 100644
index 000000000000..4742012ace06
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tracing_struct_many_args.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+struct bpf_testmod_struct_arg_4 {
+	u64 a;
+	int b;
+};
+
+struct bpf_testmod_struct_arg_5 {
+	char a;
+	short b;
+	int c;
+	long d;
+};
+
+long t7_a, t7_b, t7_c, t7_d, t7_e, t7_f_a, t7_f_b, t7_ret;
+long t8_a, t8_b, t8_c, t8_d, t8_e, t8_f_a, t8_f_b, t8_g, t8_ret;
+long t9_a, t9_b, t9_c, t9_d, t9_e, t9_f, t9_g, t9_h_a, t9_h_b, t9_h_c, t9_h_d, t9_i, t9_ret;
+
+SEC("fentry/bpf_testmod_test_struct_arg_7")
+int BPF_PROG2(test_struct_many_args_1, __u64, a, void *, b, short, c, int, d,
+	      void *, e, struct bpf_testmod_struct_arg_4, f)
+{
+	t7_a = a;
+	t7_b = (long)b;
+	t7_c = c;
+	t7_d = d;
+	t7_e = (long)e;
+	t7_f_a = f.a;
+	t7_f_b = f.b;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_7")
+int BPF_PROG2(test_struct_many_args_2, __u64, a, void *, b, short, c, int, d,
+	      void *, e, struct bpf_testmod_struct_arg_4, f, int, ret)
+{
+	t7_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_8")
+int BPF_PROG2(test_struct_many_args_3, __u64, a, void *, b, short, c, int, d,
+	      void *, e, struct bpf_testmod_struct_arg_4, f, int, g)
+{
+	t8_a = a;
+	t8_b = (long)b;
+	t8_c = c;
+	t8_d = d;
+	t8_e = (long)e;
+	t8_f_a = f.a;
+	t8_f_b = f.b;
+	t8_g = g;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_8")
+int BPF_PROG2(test_struct_many_args_4, __u64, a, void *, b, short, c, int, d,
+	      void *, e, struct bpf_testmod_struct_arg_4, f, int, g,
+	      int, ret)
+{
+	t8_ret = ret;
+	return 0;
+}
+
+SEC("fentry/bpf_testmod_test_struct_arg_9")
+int BPF_PROG2(test_struct_many_args_5, __u64, a, void *, b, short, c, int, d, void *, e,
+	      char, f, short, g, struct bpf_testmod_struct_arg_5, h, long, i)
+{
+	t9_a = a;
+	t9_b = (long)b;
+	t9_c = c;
+	t9_d = d;
+	t9_e = (long)e;
+	t9_f = f;
+	t9_g = g;
+	t9_h_a = h.a;
+	t9_h_b = h.b;
+	t9_h_c = h.c;
+	t9_h_d = h.d;
+	t9_i = i;
+	return 0;
+}
+
+SEC("fexit/bpf_testmod_test_struct_arg_9")
+int BPF_PROG2(test_struct_many_args_6, __u64, a, void *, b, short, c, int, d, void *, e,
+	      char, f, short, g, struct bpf_testmod_struct_arg_5, h, long, i, int, ret)
+{
+	t9_ret = ret;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/trigger_bench.c b/tools/testing/selftests/bpf/progs/trigger_bench.c
new file mode 100644
index 000000000000..2898b3749d07
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/trigger_bench.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2020 Facebook
+#include <linux/bpf.h>
+#include <asm/unistd.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define CPU_MASK 255
+#define MAX_CPUS (CPU_MASK + 1) /* should match MAX_BUCKETS in benchs/bench_trigger.c */
+
+/* matches struct counter in bench.h */
+struct counter {
+	long value;
+} __attribute__((aligned(128)));
+
+struct counter hits[MAX_CPUS];
+
+static __always_inline void inc_counter(void)
+{
+	int cpu = bpf_get_smp_processor_id();
+
+	__sync_add_and_fetch(&hits[cpu & CPU_MASK].value, 1);
+}
+
+SEC("?uprobe")
+int bench_trigger_uprobe(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?uprobe.multi")
+int bench_trigger_uprobe_multi(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+const volatile int batch_iters = 0;
+
+SEC("?raw_tp")
+int trigger_kernel_count(void *ctx)
+{
+	int i;
+
+	for (i = 0; i < batch_iters; i++) {
+		inc_counter();
+		bpf_get_numa_node_id();
+	}
+
+	return 0;
+}
+
+SEC("?raw_tp")
+int trigger_driver(void *ctx)
+{
+	int i;
+
+	for (i = 0; i < batch_iters; i++)
+		(void)bpf_get_numa_node_id(); /* attach point for benchmarking */
+
+	return 0;
+}
+
+extern int bpf_modify_return_test_tp(int nonce) __ksym __weak;
+
+SEC("?raw_tp")
+int trigger_driver_kfunc(void *ctx)
+{
+	int i;
+
+	for (i = 0; i < batch_iters; i++)
+		(void)bpf_modify_return_test_tp(0); /* attach point for benchmarking */
+
+	return 0;
+}
+
+SEC("?kprobe/bpf_get_numa_node_id")
+int bench_trigger_kprobe(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?kretprobe/bpf_get_numa_node_id")
+int bench_trigger_kretprobe(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?kprobe.multi/bpf_get_numa_node_id")
+int bench_trigger_kprobe_multi(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?kprobe.multi/bpf_get_numa_node_id")
+int bench_kprobe_multi_empty(void *ctx)
+{
+	return 0;
+}
+
+SEC("?kretprobe.multi/bpf_get_numa_node_id")
+int bench_trigger_kretprobe_multi(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?kretprobe.multi/bpf_get_numa_node_id")
+int bench_kretprobe_multi_empty(void *ctx)
+{
+	return 0;
+}
+
+SEC("?fentry/bpf_get_numa_node_id")
+int bench_trigger_fentry(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?fexit/bpf_get_numa_node_id")
+int bench_trigger_fexit(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?fmod_ret/bpf_modify_return_test_tp")
+int bench_trigger_fmodret(void *ctx)
+{
+	inc_counter();
+	return -22;
+}
+
+SEC("?tp/bpf_test_run/bpf_trigger_tp")
+int bench_trigger_tp(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
+
+SEC("?raw_tp/bpf_trigger_tp")
+int bench_trigger_rawtp(void *ctx)
+{
+	inc_counter();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/twfw.c b/tools/testing/selftests/bpf/progs/twfw.c
new file mode 100644
index 000000000000..de1b18a62b46
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/twfw.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <linux/types.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/bpf.h>
+#include <stdint.h>
+
+#define TWFW_MAX_TIERS (64)
+/*
+ * load is successful
+ * #define TWFW_MAX_TIERS (64u)$
+ */
+
+struct twfw_tier_value {
+	unsigned long mask[1];
+};
+
+struct rule {
+	uint8_t seqnum;
+};
+
+struct rules_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, struct rule);
+	__uint(max_entries, 1);
+};
+
+struct tiers_map {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, struct twfw_tier_value);
+	__uint(max_entries, 1);
+};
+
+struct rules_map rules SEC(".maps");
+struct tiers_map tiers SEC(".maps");
+
+SEC("cgroup_skb/ingress")
+int twfw_verifier(struct __sk_buff* skb)
+{
+	const uint32_t key = 0;
+	const struct twfw_tier_value* tier = bpf_map_lookup_elem(&tiers, &key);
+	if (!tier)
+		return 1;
+
+	struct rule* rule = bpf_map_lookup_elem(&rules, &key);
+	if (!rule)
+		return 1;
+
+	if (rule && rule->seqnum < TWFW_MAX_TIERS) {
+		/* rule->seqnum / 64 should always be 0 */
+		unsigned long mask = tier->mask[rule->seqnum / 64];
+		if (mask)
+			return 0;
+	}
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/type_cast.c b/tools/testing/selftests/bpf/progs/type_cast.c
new file mode 100644
index 000000000000..9d808b8f4ab0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/type_cast.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_kfuncs.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, long);
+} enter_id SEC(".maps");
+
+#define	IFNAMSIZ 16
+
+int ifindex, ingress_ifindex;
+char name[IFNAMSIZ];
+unsigned int inum;
+unsigned int meta_len, frag0_len, kskb_len, kskb2_len;
+
+SEC("?xdp")
+int md_xdp(struct xdp_md *ctx)
+{
+	struct xdp_buff *kctx = bpf_cast_to_kern_ctx(ctx);
+	struct net_device *dev;
+
+	dev = kctx->rxq->dev;
+	ifindex = dev->ifindex;
+	inum = dev->nd_net.net->ns.inum;
+	__builtin_memcpy(name, dev->name, IFNAMSIZ);
+	ingress_ifindex = ctx->ingress_ifindex;
+	return XDP_PASS;
+}
+
+SEC("?tc")
+int md_skb(struct __sk_buff *skb)
+{
+	struct sk_buff *kskb = bpf_cast_to_kern_ctx(skb);
+	struct skb_shared_info *shared_info;
+	struct sk_buff *kskb2;
+
+	kskb_len = kskb->len;
+
+	/* Simulate the following kernel macro:
+	 *   #define skb_shinfo(SKB) ((struct skb_shared_info *)(skb_end_pointer(SKB)))
+	 */
+	shared_info = bpf_core_cast(kskb->head + kskb->end, struct skb_shared_info);
+	meta_len = shared_info->meta_len;
+	frag0_len = shared_info->frag_list->len;
+
+	/* kskb2 should be equal to kskb */
+	kskb2 = bpf_core_cast(kskb, typeof(*kskb2));
+	kskb2_len = kskb2->len;
+	return 0;
+}
+
+SEC("?tp_btf/sys_enter")
+int BPF_PROG(untrusted_ptr, struct pt_regs *regs, long id)
+{
+	struct task_struct *task, *task_dup;
+
+	task = bpf_get_current_task_btf();
+	task_dup = bpf_core_cast(task, struct task_struct);
+	(void)bpf_task_storage_get(&enter_id, task_dup, 0, 0);
+	return 0;
+}
+
+SEC("?tracepoint/syscalls/sys_enter_nanosleep")
+int kctx_u64(void *ctx)
+{
+	u64 *kctx = bpf_core_cast(ctx, u64);
+
+	(void)kctx;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/udp_limit.c b/tools/testing/selftests/bpf/progs/udp_limit.c
new file mode 100644
index 000000000000..4767451b59ac
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/udp_limit.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <sys/socket.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+int invocations = 0, in_use = 0;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} sk_map SEC(".maps");
+
+SEC("cgroup/sock_create")
+int sock(struct bpf_sock *ctx)
+{
+	int *sk_storage;
+
+	if (ctx->type != SOCK_DGRAM)
+		return 1;
+
+	sk_storage = bpf_sk_storage_get(&sk_map, ctx, 0,
+					BPF_SK_STORAGE_GET_F_CREATE);
+	if (!sk_storage)
+		return 0;
+	*sk_storage = 0xdeadbeef;
+
+	__sync_fetch_and_add(&invocations, 1);
+
+	if (in_use > 0) {
+		/* BPF_CGROUP_INET_SOCK_RELEASE is _not_ called
+		 * when we return an error from the BPF
+		 * program!
+		 */
+		return 0;
+	}
+
+	__sync_fetch_and_add(&in_use, 1);
+	return 1;
+}
+
+SEC("cgroup/sock_release")
+int sock_release(struct bpf_sock *ctx)
+{
+	int *sk_storage;
+
+	if (ctx->type != SOCK_DGRAM)
+		return 1;
+
+	sk_storage = bpf_sk_storage_get(&sk_map, ctx, 0, 0);
+	if (!sk_storage || *sk_storage != 0xdeadbeef)
+		return 0;
+
+	__sync_fetch_and_add(&invocations, 1);
+	__sync_fetch_and_add(&in_use, -1);
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/uninit_stack.c b/tools/testing/selftests/bpf/progs/uninit_stack.c
new file mode 100644
index 000000000000..046a204c8fc6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uninit_stack.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+/* Read an uninitialized value from stack at a fixed offset */
+SEC("socket")
+__naked int read_uninit_stack_fixed_off(void *ctx)
+{
+	asm volatile ("					\
+		r0 = 0;					\
+		/* force stack depth to be 128 */	\
+		*(u64*)(r10 - 128) = r1;		\
+		r1 = *(u8 *)(r10 - 8 );			\
+		r0 += r1;				\
+		r1 = *(u8 *)(r10 - 11);			\
+		r1 = *(u8 *)(r10 - 13);			\
+		r1 = *(u8 *)(r10 - 15);			\
+		r1 = *(u16*)(r10 - 16);			\
+		r1 = *(u32*)(r10 - 32);			\
+		r1 = *(u64*)(r10 - 64);			\
+		/* read from a spill of a wrong size, it is a separate	\
+		 * branch in check_stack_read_fixed_off()		\
+		 */					\
+		*(u32*)(r10 - 72) = r1;			\
+		r1 = *(u64*)(r10 - 72);			\
+		r0 = 0;					\
+		exit;					\
+"
+		      ::: __clobber_all);
+}
+
+/* Read an uninitialized value from stack at a variable offset */
+SEC("socket")
+__naked int read_uninit_stack_var_off(void *ctx)
+{
+	asm volatile ("					\
+		call %[bpf_get_prandom_u32];		\
+		/* force stack depth to be 64 */	\
+		*(u64*)(r10 - 64) = r0;			\
+		r0 = -r0;				\
+		/* give r0 a range [-31, -1] */		\
+		if r0 s<= -32 goto exit_%=;		\
+		if r0 s>= 0 goto exit_%=;		\
+		/* access stack using r0 */		\
+		r1 = r10;				\
+		r1 += r0;				\
+		r2 = *(u8*)(r1 + 0);			\
+exit_%=:	r0 = 0;					\
+		exit;					\
+"
+		      :
+		      : __imm(bpf_get_prandom_u32)
+		      : __clobber_all);
+}
+
+static __noinline void dummy(void) {}
+
+/* Pass a pointer to uninitialized stack memory to a helper.
+ * Passed memory block should be marked as STACK_MISC after helper call.
+ */
+SEC("socket")
+__log_level(7) __msg("fp-104=mmmmmmmm")
+__naked int helper_uninit_to_misc(void *ctx)
+{
+	asm volatile ("					\
+		/* force stack depth to be 128 */	\
+		*(u64*)(r10 - 128) = r1;		\
+		r1 = r10;				\
+		r1 += -128;				\
+		r2 = 32;				\
+		r3 = 0;					\
+		call %[bpf_probe_read_user];		\
+		/* Call to dummy() forces print_verifier_state(..., true),	\
+		 * thus showing the stack state, matched by __msg().		\
+		 */					\
+		call %[dummy];				\
+		r0 = 0;					\
+		exit;					\
+"
+		      :
+		      : __imm(bpf_probe_read_user),
+			__imm(dummy)
+		      : __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/unsupported_ops.c b/tools/testing/selftests/bpf/progs/unsupported_ops.c
new file mode 100644
index 000000000000..8aa2e0dd624e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/unsupported_ops.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod.h"
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops/unsupported_ops")
+__failure
+__msg("attach to unsupported member unsupported_ops of struct bpf_testmod_ops")
+int BPF_PROG(unsupported_ops)
+{
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct bpf_testmod_ops testmod = {
+	.unsupported_ops = (void *)unsupported_ops,
+};
diff --git a/tools/testing/selftests/bpf/progs/update_map_in_htab.c b/tools/testing/selftests/bpf/progs/update_map_in_htab.c
new file mode 100644
index 000000000000..c2066247cd9c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/update_map_in_htab.c
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2024. Huawei Technologies Co., Ltd */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct inner_map_type {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(key_size, 4);
+	__uint(value_size, 4);
+	__uint(max_entries, 1);
+} inner_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 2);
+	__array(values, struct inner_map_type);
+} outer_htab_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+	__uint(max_entries, 2);
+	__array(values, struct inner_map_type);
+} outer_alloc_htab_map SEC(".maps");
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi.c b/tools/testing/selftests/bpf/progs/uprobe_multi.c
new file mode 100644
index 000000000000..44190efcdba2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/usdt.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 uprobe_multi_func_1_addr = 0;
+__u64 uprobe_multi_func_2_addr = 0;
+__u64 uprobe_multi_func_3_addr = 0;
+
+__u64 uprobe_multi_func_1_result = 0;
+__u64 uprobe_multi_func_2_result = 0;
+__u64 uprobe_multi_func_3_result = 0;
+
+__u64 uretprobe_multi_func_1_result = 0;
+__u64 uretprobe_multi_func_2_result = 0;
+__u64 uretprobe_multi_func_3_result = 0;
+
+__u64 uprobe_multi_sleep_result = 0;
+
+int pid = 0;
+int child_pid = 0;
+int child_tid = 0;
+int child_pid_usdt = 0;
+int child_tid_usdt = 0;
+
+int expect_pid = 0;
+bool bad_pid_seen = false;
+bool bad_pid_seen_usdt = false;
+
+bool test_cookie = false;
+void *user_ptr = 0;
+
+static __always_inline bool verify_sleepable_user_copy(void)
+{
+	char data[9];
+
+	bpf_copy_from_user(data, sizeof(data), user_ptr);
+	return bpf_strncmp(data, sizeof(data), "test_data") == 0;
+}
+
+static void uprobe_multi_check(void *ctx, bool is_return, bool is_sleep)
+{
+	__u64 cur_pid_tgid = bpf_get_current_pid_tgid();
+	__u32 cur_pid;
+
+	cur_pid = cur_pid_tgid >> 32;
+	if (pid && cur_pid != pid)
+		return;
+
+	if (expect_pid && cur_pid != expect_pid)
+		bad_pid_seen = true;
+
+	child_pid = cur_pid_tgid >> 32;
+	child_tid = (__u32)cur_pid_tgid;
+
+	__u64 cookie = test_cookie ? bpf_get_attach_cookie(ctx) : 0;
+	__u64 addr = bpf_get_func_ip(ctx);
+
+#define SET(__var, __addr, __cookie) ({			\
+	if (addr == __addr &&				\
+	   (!test_cookie || (cookie == __cookie)))	\
+		__var += 1;				\
+})
+
+	if (is_return) {
+		SET(uretprobe_multi_func_1_result, uprobe_multi_func_1_addr, 2);
+		SET(uretprobe_multi_func_2_result, uprobe_multi_func_2_addr, 3);
+		SET(uretprobe_multi_func_3_result, uprobe_multi_func_3_addr, 1);
+	} else {
+		SET(uprobe_multi_func_1_result, uprobe_multi_func_1_addr, 3);
+		SET(uprobe_multi_func_2_result, uprobe_multi_func_2_addr, 1);
+		SET(uprobe_multi_func_3_result, uprobe_multi_func_3_addr, 2);
+	}
+
+#undef SET
+
+	if (is_sleep && verify_sleepable_user_copy())
+		uprobe_multi_sleep_result += 1;
+}
+
+SEC("uprobe.multi//proc/self/exe:uprobe_multi_func_*")
+int uprobe(struct pt_regs *ctx)
+{
+	uprobe_multi_check(ctx, false, false);
+	return 0;
+}
+
+SEC("uretprobe.multi//proc/self/exe:uprobe_multi_func_*")
+int uretprobe(struct pt_regs *ctx)
+{
+	uprobe_multi_check(ctx, true, false);
+	return 0;
+}
+
+SEC("uprobe.multi.s//proc/self/exe:uprobe_multi_func_*")
+int uprobe_sleep(struct pt_regs *ctx)
+{
+	uprobe_multi_check(ctx, false, true);
+	return 0;
+}
+
+SEC("uretprobe.multi.s//proc/self/exe:uprobe_multi_func_*")
+int uretprobe_sleep(struct pt_regs *ctx)
+{
+	uprobe_multi_check(ctx, true, true);
+	return 0;
+}
+
+SEC("uprobe.multi//proc/self/exe:uprobe_multi_func_*")
+int uprobe_extra(struct pt_regs *ctx)
+{
+	/* we need this one just to mix PID-filtered and global uprobes */
+	return 0;
+}
+
+SEC("usdt")
+int usdt_pid(struct pt_regs *ctx)
+{
+	__u64 cur_pid_tgid = bpf_get_current_pid_tgid();
+	__u32 cur_pid;
+
+	cur_pid = cur_pid_tgid >> 32;
+	if (pid && cur_pid != pid)
+		return 0;
+
+	if (expect_pid && cur_pid != expect_pid)
+		bad_pid_seen_usdt = true;
+
+	child_pid_usdt = cur_pid_tgid >> 32;
+	child_tid_usdt = (__u32)cur_pid_tgid;
+
+	return 0;
+}
+
+SEC("usdt")
+int usdt_extra(struct pt_regs *ctx)
+{
+	/* we need this one just to mix PID-filtered and global USDT probes */
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c b/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c
new file mode 100644
index 000000000000..5367f6105e30
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_bench.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+int count;
+
+SEC("uprobe.multi/./uprobe_multi:uprobe_multi_func_*")
+int uprobe_bench(struct pt_regs *ctx)
+{
+	count++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_consumers.c b/tools/testing/selftests/bpf/progs/uprobe_multi_consumers.c
new file mode 100644
index 000000000000..93752bb5690b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_consumers.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u64 uprobe_result[4];
+
+SEC("uprobe.multi")
+int uprobe_0(struct pt_regs *ctx)
+{
+	uprobe_result[0]++;
+	return 0;
+}
+
+SEC("uprobe.multi")
+int uprobe_1(struct pt_regs *ctx)
+{
+	uprobe_result[1]++;
+	return 0;
+}
+
+SEC("uprobe.session")
+int uprobe_2(struct pt_regs *ctx)
+{
+	uprobe_result[2]++;
+	return 0;
+}
+
+SEC("uprobe.session")
+int uprobe_3(struct pt_regs *ctx)
+{
+	uprobe_result[3]++;
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_pid_filter.c b/tools/testing/selftests/bpf/progs/uprobe_multi_pid_filter.c
new file mode 100644
index 000000000000..67fcbad36661
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_pid_filter.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u32 pids[3];
+__u32 test[3][2];
+
+static void update_pid(int idx)
+{
+	__u32 pid = bpf_get_current_pid_tgid() >> 32;
+
+	if (pid == pids[idx])
+		test[idx][0]++;
+	else
+		test[idx][1]++;
+}
+
+SEC("uprobe.multi")
+int uprobe_multi_0(struct pt_regs *ctx)
+{
+	update_pid(0);
+	return 0;
+}
+
+SEC("uprobe.multi")
+int uprobe_multi_1(struct pt_regs *ctx)
+{
+	update_pid(1);
+	return 0;
+}
+
+SEC("uprobe.multi")
+int uprobe_multi_2(struct pt_regs *ctx)
+{
+	update_pid(2);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_session.c b/tools/testing/selftests/bpf/progs/uprobe_multi_session.c
new file mode 100644
index 000000000000..30bff90b68dc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_session.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u64 uprobe_multi_func_1_addr = 0;
+__u64 uprobe_multi_func_2_addr = 0;
+__u64 uprobe_multi_func_3_addr = 0;
+
+__u64 uprobe_session_result[3] = {};
+__u64 uprobe_multi_sleep_result = 0;
+
+void *user_ptr = 0;
+int pid = 0;
+
+static int uprobe_multi_check(void *ctx, bool is_return)
+{
+	const __u64 funcs[] = {
+		uprobe_multi_func_1_addr,
+		uprobe_multi_func_2_addr,
+		uprobe_multi_func_3_addr,
+	};
+	unsigned int i;
+	__u64 addr;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	addr = bpf_get_func_ip(ctx);
+
+	for (i = 0; i < ARRAY_SIZE(funcs); i++) {
+		if (funcs[i] == addr) {
+			uprobe_session_result[i]++;
+			break;
+		}
+	}
+
+	/* only uprobe_multi_func_2 executes return probe */
+	if ((addr == uprobe_multi_func_1_addr) ||
+	    (addr == uprobe_multi_func_3_addr))
+		return 1;
+
+	return 0;
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_*")
+int uprobe(struct pt_regs *ctx)
+{
+	return uprobe_multi_check(ctx, bpf_session_is_return());
+}
+
+static __always_inline bool verify_sleepable_user_copy(void)
+{
+	char data[9];
+
+	bpf_copy_from_user(data, sizeof(data), user_ptr);
+	return bpf_strncmp(data, sizeof(data), "test_data") == 0;
+}
+
+SEC("uprobe.session.s//proc/self/exe:uprobe_multi_func_*")
+int uprobe_sleepable(struct pt_regs *ctx)
+{
+	if (verify_sleepable_user_copy())
+		uprobe_multi_sleep_result++;
+	return uprobe_multi_check(ctx, bpf_session_is_return());
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_session_cookie.c b/tools/testing/selftests/bpf/progs/uprobe_multi_session_cookie.c
new file mode 100644
index 000000000000..5befdf944dc6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_session_cookie.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+
+__u64 test_uprobe_1_result = 0;
+__u64 test_uprobe_2_result = 0;
+__u64 test_uprobe_3_result = 0;
+
+static int check_cookie(__u64 val, __u64 *result)
+{
+	__u64 *cookie;
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	cookie = bpf_session_cookie();
+
+	if (bpf_session_is_return())
+		*result = *cookie == val ? val : 0;
+	else
+		*cookie = val;
+	return 0;
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
+int uprobe_1(struct pt_regs *ctx)
+{
+	return check_cookie(1, &test_uprobe_1_result);
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_2")
+int uprobe_2(struct pt_regs *ctx)
+{
+	return check_cookie(2, &test_uprobe_2_result);
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_3")
+int uprobe_3(struct pt_regs *ctx)
+{
+	return check_cookie(3, &test_uprobe_3_result);
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_session_recursive.c b/tools/testing/selftests/bpf/progs/uprobe_multi_session_recursive.c
new file mode 100644
index 000000000000..8fbcd69fae22
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_session_recursive.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+int pid = 0;
+
+int idx_entry = 0;
+int idx_return = 0;
+
+__u64 test_uprobe_cookie_entry[6];
+__u64 test_uprobe_cookie_return[3];
+
+static int check_cookie(void)
+{
+	__u64 *cookie = bpf_session_cookie();
+
+	if (bpf_session_is_return()) {
+		if (idx_return >= ARRAY_SIZE(test_uprobe_cookie_return))
+			return 1;
+		test_uprobe_cookie_return[idx_return++] = *cookie;
+		return 0;
+	}
+
+	if (idx_entry >= ARRAY_SIZE(test_uprobe_cookie_entry))
+		return 1;
+	*cookie = test_uprobe_cookie_entry[idx_entry];
+	return idx_entry++ % 2;
+}
+
+
+SEC("uprobe.session//proc/self/exe:uprobe_session_recursive")
+int uprobe_recursive(struct pt_regs *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	return check_cookie();
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c b/tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c
new file mode 100644
index 000000000000..7c960376ae97
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_session_single.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+__u64 uprobe_session_result[3] = {};
+int pid = 0;
+
+static int uprobe_multi_check(void *ctx, int idx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 1;
+
+	uprobe_session_result[idx]++;
+
+	/* only consumer 1 executes return probe */
+	if (idx == 0 || idx == 2)
+		return 1;
+
+	return 0;
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
+int uprobe_0(struct pt_regs *ctx)
+{
+	return uprobe_multi_check(ctx, 0);
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
+int uprobe_1(struct pt_regs *ctx)
+{
+	return uprobe_multi_check(ctx, 1);
+}
+
+SEC("uprobe.session//proc/self/exe:uprobe_multi_func_1")
+int uprobe_2(struct pt_regs *ctx)
+{
+	return uprobe_multi_check(ctx, 2);
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c b/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c
new file mode 100644
index 000000000000..9e1c33d0bd2f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_usdt.c
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/usdt.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+int count;
+
+SEC("usdt")
+int usdt0(struct pt_regs *ctx)
+{
+	count++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_multi_verifier.c b/tools/testing/selftests/bpf/progs/uprobe_multi_verifier.c
new file mode 100644
index 000000000000..fe49f2cb5360
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_multi_verifier.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/usdt.bpf.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+
+SEC("uprobe.session")
+__success
+int uprobe_sesison_return_0(struct pt_regs *ctx)
+{
+	return 0;
+}
+
+SEC("uprobe.session")
+__success
+int uprobe_sesison_return_1(struct pt_regs *ctx)
+{
+	return 1;
+}
+
+SEC("uprobe.session")
+__failure
+__msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int uprobe_sesison_return_2(struct pt_regs *ctx)
+{
+	return 2;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_syscall.c b/tools/testing/selftests/bpf/progs/uprobe_syscall.c
new file mode 100644
index 000000000000..e08c31669e5a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_syscall.c
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <string.h>
+
+struct pt_regs regs;
+
+char _license[] SEC("license") = "GPL";
+
+SEC("uprobe")
+int probe(struct pt_regs *ctx)
+{
+	__builtin_memcpy(&regs, ctx, sizeof(regs));
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
new file mode 100644
index 000000000000..915d38591bf6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uprobe_syscall_executed.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/usdt.bpf.h>
+#include <string.h>
+
+struct pt_regs regs;
+
+char _license[] SEC("license") = "GPL";
+
+int executed = 0;
+int pid;
+
+SEC("uprobe")
+int BPF_UPROBE(test_uprobe)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
+
+SEC("uretprobe")
+int BPF_URETPROBE(test_uretprobe)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
+
+SEC("uprobe.multi")
+int test_uprobe_multi(struct pt_regs *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
+
+SEC("uretprobe.multi")
+int test_uretprobe_multi(struct pt_regs *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
+
+SEC("uprobe.session")
+int test_uprobe_session(struct pt_regs *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
+
+SEC("usdt")
+int test_usdt(struct pt_regs *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	executed++;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/uptr_failure.c b/tools/testing/selftests/bpf/progs/uptr_failure.c
new file mode 100644
index 000000000000..0cfa1fd61440
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uptr_failure.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_experimental.h"
+#include "bpf_misc.h"
+#include "uptr_test_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct value_type);
+} datamap SEC(".maps");
+
+SEC("?syscall")
+__failure __msg("store to uptr disallowed")
+int uptr_write(const void *ctx)
+{
+	struct task_struct *task;
+	struct value_type *v;
+
+	task = bpf_get_current_task_btf();
+	v = bpf_task_storage_get(&datamap, task, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!v)
+		return 0;
+
+	v->udata = NULL;
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("store to uptr disallowed")
+int uptr_write_nested(const void *ctx)
+{
+	struct task_struct *task;
+	struct value_type *v;
+
+	task = bpf_get_current_task_btf();
+	v = bpf_task_storage_get(&datamap, task, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!v)
+		return 0;
+
+	v->nested.udata = NULL;
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("R1 invalid mem access 'mem_or_null'")
+int uptr_no_null_check(const void *ctx)
+{
+	struct task_struct *task;
+	struct value_type *v;
+
+	task = bpf_get_current_task_btf();
+	v = bpf_task_storage_get(&datamap, task, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!v)
+		return 0;
+
+	v->udata->result = 0;
+
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("doesn't point to kptr")
+int uptr_kptr_xchg(const void *ctx)
+{
+	struct task_struct *task;
+	struct value_type *v;
+
+	task = bpf_get_current_task_btf();
+	v = bpf_task_storage_get(&datamap, task, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!v)
+		return 0;
+
+	bpf_kptr_xchg(&v->udata, NULL);
+
+	return 0;
+}
+
+SEC("?syscall")
+__failure __msg("invalid mem access 'scalar'")
+int uptr_obj_new(const void *ctx)
+{
+	struct value_type *v;
+
+	v = bpf_obj_new(typeof(*v));
+	if (!v)
+		return 0;
+
+	if (v->udata)
+		v->udata->result = 0;
+
+	bpf_obj_drop(v);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/uptr_map_failure.c b/tools/testing/selftests/bpf/progs/uptr_map_failure.c
new file mode 100644
index 000000000000..417b763d76b4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uptr_map_failure.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "uptr_test_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct large_uptr);
+} large_uptr_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct empty_uptr);
+} empty_uptr_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct kstruct_uptr);
+} kstruct_uptr_map SEC(".maps");
diff --git a/tools/testing/selftests/bpf/progs/uptr_update_failure.c b/tools/testing/selftests/bpf/progs/uptr_update_failure.c
new file mode 100644
index 000000000000..86c3bb954abc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uptr_update_failure.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "uptr_test_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct value_lock_type);
+} datamap SEC(".maps");
+
+/* load test only. not used */
+SEC("syscall")
+int not_used(void *ctx)
+{
+	struct value_lock_type *ptr;
+	struct task_struct *task;
+	struct user_data *udata;
+
+	task = bpf_get_current_task_btf();
+	ptr = bpf_task_storage_get(&datamap, task, 0, 0);
+	if (!ptr)
+		return 0;
+
+	bpf_spin_lock(&ptr->lock);
+
+	udata = ptr->udata;
+	if (!udata) {
+		bpf_spin_unlock(&ptr->lock);
+		return 0;
+	}
+	udata->result = MAGIC_VALUE + udata->a + udata->b;
+
+	bpf_spin_unlock(&ptr->lock);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/uretprobe_stack.c b/tools/testing/selftests/bpf/progs/uretprobe_stack.c
new file mode 100644
index 000000000000..a2951e2f1711
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/uretprobe_stack.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/usdt.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+__u64 entry_stack1[32], exit_stack1[32];
+__u64 entry_stack1_recur[32], exit_stack1_recur[32];
+__u64 entry_stack2[32];
+__u64 entry_stack3[32];
+__u64 entry_stack4[32], exit_stack4[32];
+__u64 usdt_stack[32];
+
+int entry1_len, exit1_len;
+int entry1_recur_len, exit1_recur_len;
+int entry2_len, exit2_len;
+int entry3_len, exit3_len;
+int entry4_len, exit4_len;
+int usdt_len;
+
+#define SZ sizeof(usdt_stack)
+
+SEC("uprobe//proc/self/exe:target_1")
+int BPF_UPROBE(uprobe_1)
+{
+	/* target_1 is recursive with depth of 2, so we capture two separate
+	 * stack traces, depending on which occurrence it is
+	 */
+	static bool recur = false;
+
+	if (!recur)
+		entry1_len = bpf_get_stack(ctx, &entry_stack1, SZ, BPF_F_USER_STACK);
+	else
+		entry1_recur_len = bpf_get_stack(ctx, &entry_stack1_recur, SZ, BPF_F_USER_STACK);
+
+	recur = true;
+	return 0;
+}
+
+SEC("uretprobe//proc/self/exe:target_1")
+int BPF_URETPROBE(uretprobe_1)
+{
+	/* see above, target_1 is recursive */
+	static bool recur = false;
+
+	/* NOTE: order of returns is reversed to order of entries */
+	if (!recur)
+		exit1_recur_len = bpf_get_stack(ctx, &exit_stack1_recur, SZ, BPF_F_USER_STACK);
+	else
+		exit1_len = bpf_get_stack(ctx, &exit_stack1, SZ, BPF_F_USER_STACK);
+
+	recur = true;
+	return 0;
+}
+
+SEC("uprobe//proc/self/exe:target_2")
+int BPF_UPROBE(uprobe_2)
+{
+	entry2_len = bpf_get_stack(ctx, &entry_stack2, SZ, BPF_F_USER_STACK);
+	return 0;
+}
+
+/* no uretprobe for target_2 */
+
+SEC("uprobe//proc/self/exe:target_3")
+int BPF_UPROBE(uprobe_3)
+{
+	entry3_len = bpf_get_stack(ctx, &entry_stack3, SZ, BPF_F_USER_STACK);
+	return 0;
+}
+
+/* no uretprobe for target_3 */
+
+SEC("uprobe//proc/self/exe:target_4")
+int BPF_UPROBE(uprobe_4)
+{
+	entry4_len = bpf_get_stack(ctx, &entry_stack4, SZ, BPF_F_USER_STACK);
+	return 0;
+}
+
+SEC("uretprobe//proc/self/exe:target_4")
+int BPF_URETPROBE(uretprobe_4)
+{
+	exit4_len = bpf_get_stack(ctx, &exit_stack4, SZ, BPF_F_USER_STACK);
+	return 0;
+}
+
+SEC("usdt//proc/self/exe:uretprobe_stack:target")
+int BPF_USDT(usdt_probe)
+{
+	usdt_len = bpf_get_stack(ctx, &usdt_stack, SZ, BPF_F_USER_STACK);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/user_ringbuf_fail.c b/tools/testing/selftests/bpf/progs/user_ringbuf_fail.c
new file mode 100644
index 000000000000..54de0389f878
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/user_ringbuf_fail.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct sample {
+	int pid;
+	int seq;
+	long value;
+	char comm[16];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_USER_RINGBUF);
+	__uint(max_entries, 4096);
+} user_ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 2);
+} ringbuf SEC(".maps");
+
+static int map_value;
+
+static long
+bad_access1(struct bpf_dynptr *dynptr, void *context)
+{
+	const struct sample *sample;
+
+	sample = bpf_dynptr_data(dynptr - 1, 0, sizeof(*sample));
+	bpf_printk("Was able to pass bad pointer %lx\n", (__u64)dynptr - 1);
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to read before the pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("negative offset dynptr_ptr ptr")
+int user_ringbuf_callback_bad_access1(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, bad_access1, NULL, 0);
+
+	return 0;
+}
+
+static long
+bad_access2(struct bpf_dynptr *dynptr, void *context)
+{
+	const struct sample *sample;
+
+	sample = bpf_dynptr_data(dynptr + 1, 0, sizeof(*sample));
+	bpf_printk("Was able to pass bad pointer %lx\n", (__u64)dynptr + 1);
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to read past the end of the pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("dereference of modified dynptr_ptr ptr")
+int user_ringbuf_callback_bad_access2(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, bad_access2, NULL, 0);
+
+	return 0;
+}
+
+static long
+write_forbidden(struct bpf_dynptr *dynptr, void *context)
+{
+	*((long *)dynptr) = 0;
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to write to that pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'dynptr_ptr'")
+int user_ringbuf_callback_write_forbidden(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, write_forbidden, NULL, 0);
+
+	return 0;
+}
+
+static long
+null_context_write(struct bpf_dynptr *dynptr, void *context)
+{
+	*((__u64 *)context) = 0;
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to write to that pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int user_ringbuf_callback_null_context_write(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, null_context_write, NULL, 0);
+
+	return 0;
+}
+
+static long
+null_context_read(struct bpf_dynptr *dynptr, void *context)
+{
+	__u64 id = *((__u64 *)context);
+
+	bpf_printk("Read id %lu\n", id);
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to write to that pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("invalid mem access 'scalar'")
+int user_ringbuf_callback_null_context_read(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, null_context_read, NULL, 0);
+
+	return 0;
+}
+
+static long
+try_discard_dynptr(struct bpf_dynptr *dynptr, void *context)
+{
+	bpf_ringbuf_discard_dynptr(dynptr, 0);
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to read past the end of the pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("cannot release unowned const bpf_dynptr")
+int user_ringbuf_callback_discard_dynptr(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, try_discard_dynptr, NULL, 0);
+
+	return 0;
+}
+
+static long
+try_submit_dynptr(struct bpf_dynptr *dynptr, void *context)
+{
+	bpf_ringbuf_submit_dynptr(dynptr, 0);
+
+	return 0;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to read past the end of the pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("cannot release unowned const bpf_dynptr")
+int user_ringbuf_callback_submit_dynptr(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, try_submit_dynptr, NULL, 0);
+
+	return 0;
+}
+
+static long
+invalid_drain_callback_return(struct bpf_dynptr *dynptr, void *context)
+{
+	return 2;
+}
+
+/* A callback that accesses a dynptr in a bpf_user_ringbuf_drain callback should
+ * not be able to write to that pointer.
+ */
+SEC("?raw_tp")
+__failure __msg("At callback return the register R0 has ")
+int user_ringbuf_callback_invalid_return(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, invalid_drain_callback_return, NULL, 0);
+
+	return 0;
+}
+
+static long
+try_reinit_dynptr_mem(struct bpf_dynptr *dynptr, void *context)
+{
+	bpf_dynptr_from_mem(&map_value, 4, 0, dynptr);
+	return 0;
+}
+
+static long
+try_reinit_dynptr_ringbuf(struct bpf_dynptr *dynptr, void *context)
+{
+	bpf_ringbuf_reserve_dynptr(&ringbuf, 8, 0, dynptr);
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("Dynptr has to be an uninitialized dynptr")
+int user_ringbuf_callback_reinit_dynptr_mem(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, try_reinit_dynptr_mem, NULL, 0);
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("Dynptr has to be an uninitialized dynptr")
+int user_ringbuf_callback_reinit_dynptr_ringbuf(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf, try_reinit_dynptr_ringbuf, NULL, 0);
+	return 0;
+}
+
+__noinline long global_call_bpf_dynptr_data(struct bpf_dynptr *dynptr)
+{
+	bpf_dynptr_data(dynptr, 0xA, 0xA);
+	return 0;
+}
+
+static long callback_adjust_bpf_dynptr_reg_off(struct bpf_dynptr *dynptr,
+					       void *ctx)
+{
+	global_call_bpf_dynptr_data(dynptr += 1024);
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("dereference of modified dynptr_ptr ptr R1 off=16384 disallowed")
+int user_ringbuf_callback_const_ptr_to_dynptr_reg_off(void *ctx)
+{
+	bpf_user_ringbuf_drain(&user_ringbuf,
+			       callback_adjust_bpf_dynptr_reg_off, NULL, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/user_ringbuf_success.c b/tools/testing/selftests/bpf/progs/user_ringbuf_success.c
new file mode 100644
index 000000000000..dd3bdf672633
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/user_ringbuf_success.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "test_user_ringbuf.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	__uint(type, BPF_MAP_TYPE_USER_RINGBUF);
+} user_ringbuf SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+} kernel_ringbuf SEC(".maps");
+
+/* inputs */
+int pid, err, val;
+
+int read = 0;
+
+/* Counter used for end-to-end protocol test */
+__u64 kern_mutated = 0;
+__u64 user_mutated = 0;
+__u64 expected_user_mutated = 0;
+
+static int
+is_test_process(void)
+{
+	int cur_pid = bpf_get_current_pid_tgid() >> 32;
+
+	return cur_pid == pid;
+}
+
+static long
+record_sample(struct bpf_dynptr *dynptr, void *context)
+{
+	const struct sample *sample = NULL;
+	struct sample stack_sample;
+	int status;
+	static int num_calls;
+
+	if (num_calls++ % 2 == 0) {
+		status = bpf_dynptr_read(&stack_sample, sizeof(stack_sample), dynptr, 0, 0);
+		if (status) {
+			bpf_printk("bpf_dynptr_read() failed: %d\n", status);
+			err = 1;
+			return 1;
+		}
+	} else {
+		sample = bpf_dynptr_data(dynptr, 0, sizeof(*sample));
+		if (!sample) {
+			bpf_printk("Unexpectedly failed to get sample\n");
+			err = 2;
+			return 1;
+		}
+		stack_sample = *sample;
+	}
+
+	__sync_fetch_and_add(&read, 1);
+	return 0;
+}
+
+static void
+handle_sample_msg(const struct test_msg *msg)
+{
+	switch (msg->msg_op) {
+	case TEST_MSG_OP_INC64:
+		kern_mutated += msg->operand_64;
+		break;
+	case TEST_MSG_OP_INC32:
+		kern_mutated += msg->operand_32;
+		break;
+	case TEST_MSG_OP_MUL64:
+		kern_mutated *= msg->operand_64;
+		break;
+	case TEST_MSG_OP_MUL32:
+		kern_mutated *= msg->operand_32;
+		break;
+	default:
+		bpf_printk("Unrecognized op %d\n", msg->msg_op);
+		err = 2;
+	}
+}
+
+static long
+read_protocol_msg(struct bpf_dynptr *dynptr, void *context)
+{
+	const struct test_msg *msg = NULL;
+
+	msg = bpf_dynptr_data(dynptr, 0, sizeof(*msg));
+	if (!msg) {
+		err = 1;
+		bpf_printk("Unexpectedly failed to get msg\n");
+		return 0;
+	}
+
+	handle_sample_msg(msg);
+
+	return 0;
+}
+
+static int publish_next_kern_msg(__u32 index, void *context)
+{
+	struct test_msg *msg = NULL;
+	int operand_64 = TEST_OP_64;
+	int operand_32 = TEST_OP_32;
+
+	msg = bpf_ringbuf_reserve(&kernel_ringbuf, sizeof(*msg), 0);
+	if (!msg) {
+		err = 4;
+		return 1;
+	}
+
+	switch (index % TEST_MSG_OP_NUM_OPS) {
+	case TEST_MSG_OP_INC64:
+		msg->operand_64 = operand_64;
+		msg->msg_op = TEST_MSG_OP_INC64;
+		expected_user_mutated += operand_64;
+		break;
+	case TEST_MSG_OP_INC32:
+		msg->operand_32 = operand_32;
+		msg->msg_op = TEST_MSG_OP_INC32;
+		expected_user_mutated += operand_32;
+		break;
+	case TEST_MSG_OP_MUL64:
+		msg->operand_64 = operand_64;
+		msg->msg_op = TEST_MSG_OP_MUL64;
+		expected_user_mutated *= operand_64;
+		break;
+	case TEST_MSG_OP_MUL32:
+		msg->operand_32 = operand_32;
+		msg->msg_op = TEST_MSG_OP_MUL32;
+		expected_user_mutated *= operand_32;
+		break;
+	default:
+		bpf_ringbuf_discard(msg, 0);
+		err = 5;
+		return 1;
+	}
+
+	bpf_ringbuf_submit(msg, 0);
+
+	return 0;
+}
+
+static void
+publish_kern_messages(void)
+{
+	if (expected_user_mutated != user_mutated) {
+		bpf_printk("%lu != %lu\n", expected_user_mutated, user_mutated);
+		err = 3;
+		return;
+	}
+
+	bpf_loop(8, publish_next_kern_msg, NULL, 0);
+}
+
+SEC("fentry/" SYS_PREFIX "sys_prctl")
+int test_user_ringbuf_protocol(void *ctx)
+{
+	long status = 0;
+
+	if (!is_test_process())
+		return 0;
+
+	status = bpf_user_ringbuf_drain(&user_ringbuf, read_protocol_msg, NULL, 0);
+	if (status < 0) {
+		bpf_printk("Drain returned: %ld\n", status);
+		err = 1;
+		return 0;
+	}
+
+	publish_kern_messages();
+
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int test_user_ringbuf(void *ctx)
+{
+	if (!is_test_process())
+		return 0;
+
+	err = bpf_user_ringbuf_drain(&user_ringbuf, record_sample, NULL, 0);
+
+	return 0;
+}
+
+static long
+do_nothing_cb(struct bpf_dynptr *dynptr, void *context)
+{
+	__sync_fetch_and_add(&read, 1);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_prlimit64")
+int test_user_ringbuf_epoll(void *ctx)
+{
+	long num_samples;
+
+	if (!is_test_process())
+		return 0;
+
+	num_samples = bpf_user_ringbuf_drain(&user_ringbuf, do_nothing_cb, NULL, 0);
+	if (num_samples <= 0)
+		err = 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_and.c b/tools/testing/selftests/bpf/progs/verifier_and.c
new file mode 100644
index 000000000000..2b4fdca162be
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_and.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/and.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("invalid and of negative number")
+__failure __msg("R0 max value is outside of the allowed memory range")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void invalid_and_of_negative_number(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= -4;					\
+	r1 <<= 2;					\
+	r0 += r1;					\
+l0_%=:	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid range check")
+__failure __msg("R0 max value is outside of the allowed memory range")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void invalid_range_check(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	r9 = 1;						\
+	w1 %%= 2;					\
+	w1 += 1;					\
+	w9 &= w1;					\
+	w9 += 1;					\
+	w9 >>= 1;					\
+	w3 = 1;						\
+	w3 -= w9;					\
+	w3 *= 0x10000000;				\
+	r0 += r3;					\
+	*(u32*)(r0 + 0) = r3;				\
+l0_%=:	r0 = r0;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check known subreg with unknown reg")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if w0 < 0x1 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R1 !read_ok'` */
+__xlated_unpriv("goto pc-1") /* `r1 = *(u32*)(r1 + 512)`, sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void known_subreg_with_unknown_reg(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r0 <<= 32;					\
+	r0 += 1;					\
+	r0 &= 0xFFFF1234;				\
+	/* Upper bits are unknown but AND above masks out 1 zero'ing lower bits */\
+	if w0 < 1 goto l0_%=;				\
+	r1 = *(u32*)(r1 + 512);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_arena.c b/tools/testing/selftests/bpf/progs/verifier_arena.c
new file mode 100644
index 000000000000..7f4827eede3c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_arena.c
@@ -0,0 +1,257 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+#include "bpf_arena_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 2); /* arena of two pages close to 32-bit boundary*/
+#ifdef __TARGET_ARCH_arm64
+        __ulong(map_extra, (1ull << 32) | (~0u - __PAGE_SIZE * 2 + 1)); /* start of mmap() region */
+#else
+        __ulong(map_extra, (1ull << 44) | (~0u - __PAGE_SIZE * 2 + 1)); /* start of mmap() region */
+#endif
+} arena SEC(".maps");
+
+SEC("syscall")
+__success __retval(0)
+int basic_alloc1(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	volatile int __arena *page1, *page2, *no_page, *page3;
+
+	page1 = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page1)
+		return 1;
+	*page1 = 1;
+	page2 = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page2)
+		return 2;
+	*page2 = 2;
+	no_page = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (no_page)
+		return 3;
+	if (*page1 != 1)
+		return 4;
+	if (*page2 != 2)
+		return 5;
+	bpf_arena_free_pages(&arena, (void __arena *)page2, 1);
+	if (*page1 != 1)
+		return 6;
+	if (*page2 != 0) /* use-after-free should return 0 */
+		return 7;
+	page3 = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page3)
+		return 8;
+	*page3 = 3;
+	if (page2 != page3)
+		return 9;
+	if (*page1 != 1)
+		return 10;
+#endif
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+int basic_alloc2(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	volatile char __arena *page1, *page2, *page3, *page4;
+
+	page1 = bpf_arena_alloc_pages(&arena, NULL, 2, NUMA_NO_NODE, 0);
+	if (!page1)
+		return 1;
+	page2 = page1 + __PAGE_SIZE;
+	page3 = page1 + __PAGE_SIZE * 2;
+	page4 = page1 - __PAGE_SIZE;
+	*page1 = 1;
+	*page2 = 2;
+	*page3 = 3;
+	*page4 = 4;
+	if (*page1 != 1)
+		return 1;
+	if (*page2 != 2)
+		return 2;
+	if (*page3 != 0)
+		return 3;
+	if (*page4 != 0)
+		return 4;
+	bpf_arena_free_pages(&arena, (void __arena *)page1, 2);
+	if (*page1 != 0)
+		return 5;
+	if (*page2 != 0)
+		return 6;
+	if (*page3 != 0)
+		return 7;
+	if (*page4 != 0)
+		return 8;
+#endif
+	return 0;
+}
+
+struct bpf_arena___l {
+        struct bpf_map map;
+} __attribute__((preserve_access_index));
+
+SEC("syscall")
+__success __retval(0) __log_level(2)
+int basic_alloc3(void *ctx)
+{
+	struct bpf_arena___l *ar = (struct bpf_arena___l *)&arena;
+	volatile char __arena *pages;
+
+	pages = bpf_arena_alloc_pages(&ar->map, NULL, ar->map.max_entries, NUMA_NO_NODE, 0);
+	if (!pages)
+		return 1;
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+int basic_reserve1(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	char __arena *page;
+	int ret;
+
+	page = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page)
+		return 1;
+
+	page += __PAGE_SIZE;
+
+	/* Reserve the second page */
+	ret = bpf_arena_reserve_pages(&arena, page, 1);
+	if (ret)
+		return 2;
+
+	/* Try to explicitly allocate the reserved page. */
+	page = bpf_arena_alloc_pages(&arena, page, 1, NUMA_NO_NODE, 0);
+	if (page)
+		return 3;
+
+	/* Try to implicitly allocate the page (since there's only 2 of them). */
+	page = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (page)
+		return 4;
+#endif
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+int basic_reserve2(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	char __arena *page;
+	int ret;
+
+	page = arena_base(&arena);
+	ret = bpf_arena_reserve_pages(&arena, page, 1);
+	if (ret)
+		return 1;
+
+	page = bpf_arena_alloc_pages(&arena, page, 1, NUMA_NO_NODE, 0);
+	if ((u64)page)
+		return 2;
+#endif
+	return 0;
+}
+
+/* Reserve the same page twice, should return -EBUSY. */
+SEC("syscall")
+__success __retval(0)
+int reserve_twice(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	char __arena *page;
+	int ret;
+
+	page = arena_base(&arena);
+
+	ret = bpf_arena_reserve_pages(&arena, page, 1);
+	if (ret)
+		return 1;
+
+	ret = bpf_arena_reserve_pages(&arena, page, 1);
+	if (ret != -EBUSY)
+		return 2;
+#endif
+	return 0;
+}
+
+/* Try to reserve past the end of the arena. */
+SEC("syscall")
+__success __retval(0)
+int reserve_invalid_region(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	char __arena *page;
+	int ret;
+
+	/* Try a NULL pointer. */
+	ret = bpf_arena_reserve_pages(&arena, NULL, 3);
+	if (ret != -EINVAL)
+		return 1;
+
+	page = arena_base(&arena);
+
+	ret = bpf_arena_reserve_pages(&arena, page, 3);
+	if (ret != -EINVAL)
+		return 2;
+
+	ret = bpf_arena_reserve_pages(&arena, page, 4096);
+	if (ret != -EINVAL)
+		return 3;
+
+	ret = bpf_arena_reserve_pages(&arena, page, (1ULL << 32) - 1);
+	if (ret != -EINVAL)
+		return 4;
+#endif
+	return 0;
+}
+
+SEC("iter.s/bpf_map")
+__success __log_level(2)
+int iter_maps1(struct bpf_iter__bpf_map *ctx)
+{
+	struct bpf_map *map = ctx->map;
+
+	if (!map)
+		return 0;
+	bpf_arena_alloc_pages(map, NULL, map->max_entries, 0, 0);
+	return 0;
+}
+
+SEC("iter.s/bpf_map")
+__failure __msg("expected pointer to STRUCT bpf_map")
+int iter_maps2(struct bpf_iter__bpf_map *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+
+	bpf_arena_alloc_pages((void *)seq, NULL, 1, 0, 0);
+	return 0;
+}
+
+SEC("iter.s/bpf_map")
+__failure __msg("untrusted_ptr_bpf_map")
+int iter_maps3(struct bpf_iter__bpf_map *ctx)
+{
+	struct bpf_map *map = ctx->map;
+
+	if (!map)
+		return 0;
+	bpf_arena_alloc_pages(map->inner_map_meta, NULL, map->max_entries, 0, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_arena_large.c b/tools/testing/selftests/bpf/progs/verifier_arena_large.c
new file mode 100644
index 000000000000..f19e15400b3e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_arena_large.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+#include "bpf_arena_common.h"
+
+#define ARENA_SIZE (1ull << 32)
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, ARENA_SIZE / PAGE_SIZE);
+} arena SEC(".maps");
+
+SEC("syscall")
+__success __retval(0)
+int big_alloc1(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	volatile char __arena *page1, *page2, *no_page, *page3;
+	void __arena *base;
+
+	page1 = base = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page1)
+		return 1;
+	*page1 = 1;
+	page2 = bpf_arena_alloc_pages(&arena, base + ARENA_SIZE - PAGE_SIZE * 2,
+				      1, NUMA_NO_NODE, 0);
+	if (!page2)
+		return 2;
+	*page2 = 2;
+	no_page = bpf_arena_alloc_pages(&arena, base + ARENA_SIZE - PAGE_SIZE,
+					1, NUMA_NO_NODE, 0);
+	if (no_page)
+		return 3;
+	if (*page1 != 1)
+		return 4;
+	if (*page2 != 2)
+		return 5;
+	bpf_arena_free_pages(&arena, (void __arena *)page1, 1);
+	if (*page2 != 2)
+		return 6;
+	if (*page1 != 0) /* use-after-free should return 0 */
+		return 7;
+	page3 = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!page3)
+		return 8;
+	*page3 = 3;
+	if (page1 != page3)
+		return 9;
+	if (*page2 != 2)
+		return 10;
+	if (*(page1 + PAGE_SIZE) != 0)
+		return 11;
+	if (*(page1 - PAGE_SIZE) != 0)
+		return 12;
+	if (*(page2 + PAGE_SIZE) != 0)
+		return 13;
+	if (*(page2 - PAGE_SIZE) != 0)
+		return 14;
+#endif
+	return 0;
+}
+
+/* Try to access a reserved page. Behavior should be identical with accessing unallocated pages. */
+SEC("syscall")
+__success __retval(0)
+int access_reserved(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	volatile char __arena *page;
+	char __arena *base;
+	const size_t len = 4;
+	int ret, i;
+
+	/* Get a separate region of the arena. */
+	page = base = arena_base(&arena) + 16384 * PAGE_SIZE;
+
+	ret = bpf_arena_reserve_pages(&arena, base, len);
+	if (ret)
+		return 1;
+
+	/* Try to dirty reserved memory. */
+	for (i = 0; i < len && can_loop; i++)
+		*page = 0x5a;
+
+	for (i = 0; i < len && can_loop; i++) {
+		page = (volatile char __arena *)(base + i * PAGE_SIZE);
+
+		/*
+		 * Error out in case either the write went through,
+		 * or the address has random garbage.
+		 */
+		if (*page == 0x5a)
+			return 2 + 2 * i;
+
+		if (*page)
+			return 2 + 2 * i + 1;
+	}
+#endif
+	return 0;
+}
+
+/* Try to allocate a region overlapping with a reservation. */
+SEC("syscall")
+__success __retval(0)
+int request_partially_reserved(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	volatile char __arena *page;
+	char __arena *base;
+	int ret;
+
+	/* Add an arbitrary page offset. */
+	page = base = arena_base(&arena) + 4096 * __PAGE_SIZE;
+
+	ret = bpf_arena_reserve_pages(&arena, base + 3 * __PAGE_SIZE, 4);
+	if (ret)
+		return 1;
+
+	page = bpf_arena_alloc_pages(&arena, base, 5, NUMA_NO_NODE, 0);
+	if ((u64)page != 0ULL)
+		return 2;
+#endif
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+int free_reserved(void *ctx)
+{
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+	char __arena *addr;
+	char __arena *page;
+	int ret;
+
+	/* Add an arbitrary page offset. */
+	addr = arena_base(&arena) + 32768 * __PAGE_SIZE;
+
+	page = bpf_arena_alloc_pages(&arena, addr, 2, NUMA_NO_NODE, 0);
+	if (!page)
+		return 1;
+
+	ret = bpf_arena_reserve_pages(&arena, addr + 2 * __PAGE_SIZE, 2);
+	if (ret)
+		return 2;
+
+	/*
+	 * Reserved and allocated pages should be interchangeable for
+	 * bpf_arena_free_pages(). Free a reserved and an allocated
+	 * page with a single call.
+	 */
+	bpf_arena_free_pages(&arena, addr + __PAGE_SIZE , 2);
+
+	/* The free call above should have succeeded, so this allocation should too. */
+	page = bpf_arena_alloc_pages(&arena, addr + __PAGE_SIZE, 2, NUMA_NO_NODE, 0);
+	if (!page)
+		return 3;
+#endif
+	return 0;
+}
+
+#if defined(__BPF_FEATURE_ADDR_SPACE_CAST)
+#define PAGE_CNT 100
+__u8 __arena * __arena page[PAGE_CNT]; /* occupies the first page */
+__u8 __arena *base;
+
+/*
+ * Check that arena's range_tree algorithm allocates pages sequentially
+ * on the first pass and then fills in all gaps on the second pass.
+ */
+__noinline int alloc_pages(int page_cnt, int pages_atonce, bool first_pass,
+		int max_idx, int step)
+{
+	__u8 __arena *pg;
+	int i, pg_idx;
+
+	for (i = 0; i < page_cnt; i++) {
+		pg = bpf_arena_alloc_pages(&arena, NULL, pages_atonce,
+					   NUMA_NO_NODE, 0);
+		if (!pg)
+			return step;
+		pg_idx = (unsigned long) (pg - base) / PAGE_SIZE;
+		if (first_pass) {
+			/* Pages must be allocated sequentially */
+			if (pg_idx != i)
+				return step + 100;
+		} else {
+			/* Allocator must fill into gaps */
+			if (pg_idx >= max_idx || (pg_idx & 1))
+				return step + 200;
+		}
+		*pg = pg_idx;
+		page[pg_idx] = pg;
+		cond_break;
+	}
+	return 0;
+}
+
+SEC("syscall")
+__success __retval(0)
+int big_alloc2(void *ctx)
+{
+	__u8 __arena *pg;
+	int i, err;
+
+	base = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+	if (!base)
+		return 1;
+	bpf_arena_free_pages(&arena, (void __arena *)base, 1);
+
+	err = alloc_pages(PAGE_CNT, 1, true, PAGE_CNT, 2);
+	if (err)
+		return err;
+
+	/* Clear all even pages */
+	for (i = 0; i < PAGE_CNT; i += 2) {
+		pg = page[i];
+		if (*pg != i)
+			return 3;
+		bpf_arena_free_pages(&arena, (void __arena *)pg, 1);
+		page[i] = NULL;
+		cond_break;
+	}
+
+	/* Allocate into freed gaps */
+	err = alloc_pages(PAGE_CNT / 2, 1, false, PAGE_CNT, 4);
+	if (err)
+		return err;
+
+	/* Free pairs of pages */
+	for (i = 0; i < PAGE_CNT; i += 4) {
+		pg = page[i];
+		if (*pg != i)
+			return 5;
+		bpf_arena_free_pages(&arena, (void __arena *)pg, 2);
+		page[i] = NULL;
+		barrier();
+		page[i + 1] = NULL;
+		cond_break;
+	}
+
+	/* Allocate 2 pages at a time into freed gaps */
+	err = alloc_pages(PAGE_CNT / 4, 2, false, PAGE_CNT, 6);
+	if (err)
+		return err;
+
+	/* Check pages without freeing */
+	for (i = 0; i < PAGE_CNT; i += 2) {
+		pg = page[i];
+		if (*pg != i)
+			return 7;
+		cond_break;
+	}
+
+	pg = bpf_arena_alloc_pages(&arena, NULL, 1, NUMA_NO_NODE, 0);
+
+	if (!pg)
+		return 8;
+	/*
+	 * The first PAGE_CNT pages are occupied. The new page
+	 * must be above.
+	 */
+	if ((pg - base) / PAGE_SIZE < PAGE_CNT)
+		return 9;
+	return 0;
+}
+#endif
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_array_access.c b/tools/testing/selftests/bpf/progs/verifier_array_access.c
new file mode 100644
index 000000000000..0a187ff725cc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_array_access.c
@@ -0,0 +1,731 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/array_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+	__uint(map_flags, BPF_F_RDONLY_PROG);
+} map_array_ro SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+	__uint(map_flags, BPF_F_WRONLY_PROG);
+} map_array_wo SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, struct test_val);
+} map_array_pcpu SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, struct test_val);
+} map_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("valid map access into an array with a constant")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void an_array_with_a_constant_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid map access into an array with a register")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void an_array_with_a_register_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 4;						\
+	r1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid map access into an array with a variable")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void an_array_with_a_variable_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	if r1 >= %[max_entries] goto l0_%=;		\
+	r1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(max_entries, MAX_ENTRIES),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid map access into an array with a signed variable")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void array_with_a_signed_variable(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	if w1 s> 0xffffffff goto l1_%=;			\
+	w1 = 0;						\
+l1_%=:	w2 = %[max_entries];				\
+	if r2 s> r1 goto l2_%=;				\
+	w1 = 0;						\
+l2_%=:	w1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(max_entries, MAX_ENTRIES),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with a constant")
+__failure __msg("invalid access to map value, value_size=48 off=48 size=8")
+__failure_unpriv
+__naked void an_array_with_a_constant_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + %[__imm_0]) = r1;			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, (MAX_ENTRIES + 1) << 2),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with a register")
+__failure __msg("R0 min value is outside of the allowed memory range")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void an_array_with_a_register_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = %[__imm_0];				\
+	r1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, MAX_ENTRIES + 1),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with a variable")
+__failure
+__msg("R0 unbounded memory access, make sure to bounds check any such access")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void an_array_with_a_variable_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	r1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with no floor check")
+__failure __msg("R0 unbounded memory access")
+__failure_unpriv __msg_unpriv("R0 leaks addr")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void array_with_no_floor_check(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r0 + 0);				\
+	w2 = %[max_entries];				\
+	if r2 s> r1 goto l1_%=;				\
+	w1 = 0;						\
+l1_%=:	w1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(max_entries, MAX_ENTRIES),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with a invalid max check")
+__failure __msg("invalid access to map value, value_size=48 off=44 size=8")
+__failure_unpriv __msg_unpriv("R0 leaks addr")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void with_a_invalid_max_check_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	w2 = %[__imm_0];				\
+	if r2 > r1 goto l1_%=;				\
+	w1 = 0;						\
+l1_%=:	w1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, MAX_ENTRIES + 1),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access into an array with a invalid max check")
+__failure __msg("R0 pointer += pointer")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void with_a_invalid_max_check_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r8 = r0;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 += r8;					\
+	r0 = *(u32*)(r0 + %[test_val_foo]);		\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid read map access into a read-only array 1")
+__success __success_unpriv __retval(28)
+__naked void a_read_only_array_1_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_ro] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 = *(u32*)(r0 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_ro)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("valid read map access into a read-only array 2")
+__success __retval(65507)
+__naked void a_read_only_array_2_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_ro] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_ro)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid write map access into a read-only array 1")
+__failure __msg("write into map forbidden")
+__failure_unpriv
+__naked void a_read_only_array_1_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_ro] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 42;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_ro)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("invalid write map access into a read-only array 2")
+__failure __msg("write into map forbidden")
+__naked void a_read_only_array_2_2(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_ro] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 0;						\
+	r3 = r0;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_skb_load_bytes),
+	  __imm_addr(map_array_ro)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid write map access into a write-only array 1")
+__success __success_unpriv __retval(1)
+__naked void a_write_only_array_1_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_wo] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 42;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_wo)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("valid write map access into a write-only array 2")
+__success __retval(0)
+__naked void a_write_only_array_2_1(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_wo] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 0;						\
+	r3 = r0;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_skb_load_bytes),
+	  __imm_addr(map_array_wo)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid read map access into a write-only array 1")
+__failure __msg("read from map forbidden")
+__failure_unpriv
+__naked void a_write_only_array_1_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_wo] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 = *(u64*)(r0 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_wo)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("invalid read map access into a write-only array 2")
+__failure __msg("read from map forbidden")
+__naked void a_write_only_array_2_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_wo] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_wo)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("valid map access into an array using constant without nullness")
+__success __retval(4) __log_level(2)
+__msg("mark_precise: frame0: regs= stack=-8 before {{[0-9]}}: ({{[a-f0-9]+}}) *(u32 *)(r10 -8) = {{(1|r[0-9])}}")
+unsigned int an_array_with_a_constant_no_nullness(void)
+{
+	/* Need 8-byte alignment for spill tracking */
+	__u32 __attribute__((aligned(8))) key = 1;
+	struct test_val *val;
+
+	val = bpf_map_lookup_elem(&map_array, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("valid multiple map access into an array using constant without nullness")
+__success __retval(8) __log_level(2)
+__msg("mark_precise: frame0: regs= stack=-8 before {{[0-9]}}: ({{[a-f0-9]+}}) *(u32 *)(r10 -16) = {{(0|r[0-9])}}")
+__msg("mark_precise: frame0: regs= stack=-8 before {{[0-9]}}: ({{[a-f0-9]+}}) *(u32 *)(r10 -8) = {{(1|r[0-9])}}")
+unsigned int multiple_array_with_a_constant_no_nullness(void)
+{
+	__u32 __attribute__((aligned(8))) key = 1;
+	__u32 __attribute__((aligned(8))) key2 = 0;
+	struct test_val *val, *val2;
+
+	val = bpf_map_lookup_elem(&map_array, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	val2 = bpf_map_lookup_elem(&map_array, &key2);
+	val2->index = offsetof(struct test_val, foo);
+
+	return val->index + val2->index;
+}
+
+SEC("socket")
+__description("valid map access into an array using natural aligned 32-bit constant 0 without nullness")
+__success __retval(4)
+unsigned int an_array_with_a_32bit_constant_0_no_nullness(void)
+{
+	/* Unlike the above tests, 32-bit zeroing is precisely tracked even
+	 * if writes are not aligned to BPF_REG_SIZE. This tests that our
+	 * STACK_ZERO handling functions.
+	 */
+	struct test_val *val;
+	__u32 key = 0;
+
+	val = bpf_map_lookup_elem(&map_array, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("valid map access into a pcpu array using constant without nullness")
+__success __retval(4) __log_level(2)
+__msg("mark_precise: frame0: regs= stack=-8 before {{[0-9]}}: ({{[a-f0-9]+}}) *(u32 *)(r10 -8) = {{(1|r[0-9])}}")
+unsigned int a_pcpu_array_with_a_constant_no_nullness(void)
+{
+	__u32 __attribute__((aligned(8))) key = 1;
+	struct test_val *val;
+
+	val = bpf_map_lookup_elem(&map_array_pcpu, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("invalid map access into an array using constant without nullness")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+unsigned int an_array_with_a_constant_no_nullness_out_of_bounds(void)
+{
+	/* Out of bounds */
+	__u32 __attribute__((aligned(8))) key = 3;
+	struct test_val *val;
+
+	val = bpf_map_lookup_elem(&map_array, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("invalid map access into an array using constant smaller than key_size")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+unsigned int an_array_with_a_constant_too_small(void)
+{
+	__u32 __attribute__((aligned(8))) key;
+	struct test_val *val;
+
+	/* Mark entire key as STACK_MISC */
+	bpf_probe_read_user(&key, sizeof(key), NULL);
+
+	/* Spilling only the bottom byte results in a tnum const of 1.
+	 * We want to check that the verifier rejects it, as the spill is < 4B.
+	 */
+	*(__u8 *)&key = 1;
+	val = bpf_map_lookup_elem(&map_array, &key);
+
+	/* Should fail, as verifier cannot prove in-bound lookup */
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("invalid map access into an array using constant larger than key_size")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+unsigned int an_array_with_a_constant_too_big(void)
+{
+	struct test_val *val;
+	__u64 key = 1;
+
+	/* Even if the constant value is < max_entries, if the spill size is
+	 * larger than the key size, the set bits may not be where we expect them
+	 * to be on different endian architectures.
+	 */
+	val = bpf_map_lookup_elem(&map_array, &key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("invalid elided lookup using const and non-const key")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+unsigned int mixed_const_and_non_const_key_lookup(void)
+{
+	__u32 __attribute__((aligned(8))) key;
+	struct test_val *val;
+	__u32 rand;
+
+	rand = bpf_get_prandom_u32();
+	key = rand > 42 ? 1 : rand;
+	val = bpf_map_lookup_elem(&map_array, &key);
+
+	return val->index;
+}
+
+SEC("socket")
+__failure __msg("invalid read from stack R2 off=4096 size=4")
+__naked void key_lookup_at_invalid_fp(void)
+{
+	asm volatile ("					\
+	r1 = %[map_array] ll;				\
+	r2 = r10;					\
+	r2 += 4096;					\
+	call %[bpf_map_lookup_elem];			\
+	r0 = *(u64*)(r0 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array)
+	: __clobber_all);
+}
+
+volatile __u32 __attribute__((aligned(8))) global_key;
+
+SEC("socket")
+__description("invalid elided lookup using non-stack key")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+unsigned int non_stack_key_lookup(void)
+{
+	struct test_val *val;
+
+	global_key = 1;
+	val = bpf_map_lookup_elem(&map_array, (void *)&global_key);
+	val->index = offsetof(struct test_val, foo);
+
+	return val->index;
+}
+
+SEC("socket")
+__description("doesn't reject UINT64_MAX as s64 for irrelevant maps")
+__success __retval(42)
+unsigned int doesnt_reject_irrelevant_maps(void)
+{
+	__u64 key = 0xFFFFFFFFFFFFFFFF;
+	struct test_val *val;
+
+	val = bpf_map_lookup_elem(&map_hash_48b, &key);
+	if (val)
+		return val->index;
+
+	return 42;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c b/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c
new file mode 100644
index 000000000000..7efa9521105e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_async_cb_context.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+char _license[] SEC("license") = "GPL";
+
+/* Timer tests */
+
+struct timer_elem {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct timer_elem);
+} timer_map SEC(".maps");
+
+static int timer_cb(void *map, int *key, struct bpf_timer *timer)
+{
+	u32 data;
+	/* Timer callbacks are never sleepable, even from non-sleepable programs */
+	bpf_copy_from_user(&data, sizeof(data), NULL);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+__failure __msg("helper call might sleep in a non-sleepable prog")
+int timer_non_sleepable_prog(void *ctx)
+{
+	struct timer_elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&timer_map, &key);
+	if (!val)
+		return 0;
+
+	bpf_timer_init(&val->t, &timer_map, 0);
+	bpf_timer_set_callback(&val->t, timer_cb);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("helper call might sleep in a non-sleepable prog")
+int timer_sleepable_prog(void *ctx)
+{
+	struct timer_elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&timer_map, &key);
+	if (!val)
+		return 0;
+
+	bpf_timer_init(&val->t, &timer_map, 0);
+	bpf_timer_set_callback(&val->t, timer_cb);
+	return 0;
+}
+
+/* Workqueue tests */
+
+struct wq_elem {
+	struct bpf_wq w;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct wq_elem);
+} wq_map SEC(".maps");
+
+static int wq_cb(void *map, int *key, void *value)
+{
+	u32 data;
+	/* Workqueue callbacks are always sleepable, even from non-sleepable programs */
+	bpf_copy_from_user(&data, sizeof(data), NULL);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+__success
+int wq_non_sleepable_prog(void *ctx)
+{
+	struct wq_elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&wq_map, &key);
+	if (!val)
+		return 0;
+
+	if (bpf_wq_init(&val->w, &wq_map, 0) != 0)
+		return 0;
+	if (bpf_wq_set_callback_impl(&val->w, wq_cb, 0, NULL) != 0)
+		return 0;
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__success
+int wq_sleepable_prog(void *ctx)
+{
+	struct wq_elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&wq_map, &key);
+	if (!val)
+		return 0;
+
+	if (bpf_wq_init(&val->w, &wq_map, 0) != 0)
+		return 0;
+	if (bpf_wq_set_callback_impl(&val->w, wq_cb, 0, NULL) != 0)
+		return 0;
+	return 0;
+}
+
+/* Task work tests */
+
+struct task_work_elem {
+	struct bpf_task_work tw;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct task_work_elem);
+} task_work_map SEC(".maps");
+
+static int task_work_cb(struct bpf_map *map, void *key, void *value)
+{
+	u32 data;
+	/* Task work callbacks are always sleepable, even from non-sleepable programs */
+	bpf_copy_from_user(&data, sizeof(data), NULL);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test1")
+__success
+int task_work_non_sleepable_prog(void *ctx)
+{
+	struct task_work_elem *val;
+	struct task_struct *task;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&task_work_map, &key);
+	if (!val)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+	if (!task)
+		return 0;
+
+	bpf_task_work_schedule_resume_impl(task, &val->tw, &task_work_map, task_work_cb, NULL);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__success
+int task_work_sleepable_prog(void *ctx)
+{
+	struct task_work_elem *val;
+	struct task_struct *task;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&task_work_map, &key);
+	if (!val)
+		return 0;
+
+	task = bpf_get_current_task_btf();
+	if (!task)
+		return 0;
+
+	bpf_task_work_schedule_resume_impl(task, &val->tw, &task_work_map, task_work_cb, NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_basic_stack.c b/tools/testing/selftests/bpf/progs/verifier_basic_stack.c
new file mode 100644
index 000000000000..fb62e09f2114
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_basic_stack.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/basic_stack.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("stack out of bounds")
+__failure __msg("invalid write to stack")
+__failure_unpriv
+__naked void stack_out_of_bounds(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 + 8) = r1;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("uninitialized stack1")
+__success __log_level(4) __msg("stack depth 8")
+__failure_unpriv __msg_unpriv("invalid read from stack")
+__naked void uninitialized_stack1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("uninitialized stack2")
+__success __log_level(4) __msg("stack depth 8")
+__failure_unpriv __msg_unpriv("invalid read from stack")
+__naked void uninitialized_stack2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r0 = *(u64*)(r2 - 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid fp arithmetic")
+__failure __msg("R1 subtraction from stack pointer")
+__failure_unpriv
+__naked void invalid_fp_arithmetic(void)
+{
+	/* If this gets ever changed, make sure JITs can deal with it. */
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = r10;					\
+	r1 -= 8;					\
+	*(u64*)(r1 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("non-invalid fp arithmetic")
+__success __success_unpriv __retval(0)
+__naked void non_invalid_fp_arithmetic(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("misaligned read from stack")
+__failure __msg("misaligned stack access")
+__failure_unpriv
+__naked void misaligned_read_from_stack(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r0 = *(u64*)(r2 - 4);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bitfield_write.c b/tools/testing/selftests/bpf/progs/verifier_bitfield_write.c
new file mode 100644
index 000000000000..623f130a3198
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bitfield_write.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <stdint.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+#include "bpf_misc.h"
+
+struct core_reloc_bitfields {
+	/* unsigned bitfields */
+	uint8_t		ub1: 1;
+	uint8_t		ub2: 2;
+	uint32_t	ub7: 7;
+	/* signed bitfields */
+	int8_t		sb4: 4;
+	int32_t		sb20: 20;
+	/* non-bitfields */
+	uint32_t	u32;
+	int32_t		s32;
+} __attribute__((preserve_access_index));
+
+SEC("tc")
+__description("single CO-RE bitfield roundtrip")
+__btf_path("btf__core_reloc_bitfields.bpf.o")
+__success
+__retval(3)
+int single_field_roundtrip(struct __sk_buff *ctx)
+{
+	struct core_reloc_bitfields bitfields;
+
+	__builtin_memset(&bitfields, 0, sizeof(bitfields));
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub2, 3);
+	return BPF_CORE_READ_BITFIELD(&bitfields, ub2);
+}
+
+SEC("tc")
+__description("multiple CO-RE bitfield roundtrip")
+__btf_path("btf__core_reloc_bitfields.bpf.o")
+__success
+__retval(0x3FD)
+int multiple_field_roundtrip(struct __sk_buff *ctx)
+{
+	struct core_reloc_bitfields bitfields;
+	uint8_t ub2;
+	int8_t sb4;
+
+	__builtin_memset(&bitfields, 0, sizeof(bitfields));
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub2, 1);
+	BPF_CORE_WRITE_BITFIELD(&bitfields, sb4, -1);
+
+	ub2 = BPF_CORE_READ_BITFIELD(&bitfields, ub2);
+	sb4 = BPF_CORE_READ_BITFIELD(&bitfields, sb4);
+
+	return (((uint8_t)sb4) << 2) | ub2;
+}
+
+SEC("tc")
+__description("adjacent CO-RE bitfield roundtrip")
+__btf_path("btf__core_reloc_bitfields.bpf.o")
+__success
+__retval(7)
+int adjacent_field_roundtrip(struct __sk_buff *ctx)
+{
+	struct core_reloc_bitfields bitfields;
+	uint8_t ub1, ub2;
+
+	__builtin_memset(&bitfields, 0, sizeof(bitfields));
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub1, 1);
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub2, 3);
+
+	ub1 = BPF_CORE_READ_BITFIELD(&bitfields, ub1);
+	ub2 = BPF_CORE_READ_BITFIELD(&bitfields, ub2);
+
+	return (ub2 << 1) | ub1;
+}
+
+SEC("tc")
+__description("multibyte CO-RE bitfield roundtrip")
+__btf_path("btf__core_reloc_bitfields.bpf.o")
+__success
+__retval(0x21)
+int multibyte_field_roundtrip(struct __sk_buff *ctx)
+{
+	struct core_reloc_bitfields bitfields;
+	uint32_t ub7;
+	uint8_t ub1;
+
+	__builtin_memset(&bitfields, 0, sizeof(bitfields));
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub1, 1);
+	BPF_CORE_WRITE_BITFIELD(&bitfields, ub7, 16);
+
+	ub1 = BPF_CORE_READ_BITFIELD(&bitfields, ub1);
+	ub7 = BPF_CORE_READ_BITFIELD(&bitfields, ub7);
+
+	return (ub7 << 1) | ub1;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bits_iter.c b/tools/testing/selftests/bpf/progs/verifier_bits_iter.c
new file mode 100644
index 000000000000..8bcddadfc4da
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bits_iter.c
@@ -0,0 +1,232 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2024 Yafang Shao <laoar.shao@gmail.com> */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "bpf_misc.h"
+#include "task_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+int bpf_iter_bits_new(struct bpf_iter_bits *it, const u64 *unsafe_ptr__ign,
+		      u32 nr_bits) __ksym __weak;
+int *bpf_iter_bits_next(struct bpf_iter_bits *it) __ksym __weak;
+void bpf_iter_bits_destroy(struct bpf_iter_bits *it) __ksym __weak;
+
+u64 bits_array[511] = {};
+
+SEC("iter.s/cgroup")
+__description("bits iter without destroy")
+__failure __msg("Unreleased reference")
+int BPF_PROG(no_destroy, struct bpf_iter_meta *meta, struct cgroup *cgrp)
+{
+	struct bpf_iter_bits it;
+	u64 data = 1;
+
+	bpf_iter_bits_new(&it, &data, 1);
+	bpf_iter_bits_next(&it);
+	return 0;
+}
+
+SEC("iter/cgroup")
+__description("uninitialized iter in ->next()")
+__failure __msg("expected an initialized iter_bits as arg #0")
+int BPF_PROG(next_uninit, struct bpf_iter_meta *meta, struct cgroup *cgrp)
+{
+	struct bpf_iter_bits it = {};
+
+	bpf_iter_bits_next(&it);
+	return 0;
+}
+
+SEC("iter/cgroup")
+__description("uninitialized iter in ->destroy()")
+__failure __msg("expected an initialized iter_bits as arg #0")
+int BPF_PROG(destroy_uninit, struct bpf_iter_meta *meta, struct cgroup *cgrp)
+{
+	struct bpf_iter_bits it = {};
+
+	bpf_iter_bits_destroy(&it);
+	return 0;
+}
+
+SEC("syscall")
+__description("null pointer")
+__success __retval(0)
+int null_pointer(void)
+{
+	struct bpf_iter_bits iter;
+	int err, nr = 0;
+	int *bit;
+
+	err = bpf_iter_bits_new(&iter, NULL, 1);
+	bpf_iter_bits_destroy(&iter);
+	if (err != -EINVAL)
+		return 1;
+
+	bpf_for_each(bits, bit, NULL, 1)
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("bits copy")
+__success __retval(10)
+int bits_copy(void)
+{
+	u64 data = 0xf7310UL; /* 4 + 3 + 2 + 1 + 0*/
+	int nr = 0;
+	int *bit;
+
+	bpf_for_each(bits, bit, &data, 1)
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("bits memalloc")
+__success __retval(64)
+int bits_memalloc(void)
+{
+	u64 data[2];
+	int nr = 0;
+	int *bit;
+
+	__builtin_memset(&data, 0xf0, sizeof(data)); /* 4 * 16 */
+	bpf_for_each(bits, bit, &data[0], ARRAY_SIZE(data))
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("bit index")
+__success __retval(8)
+int bit_index(void)
+{
+	u64 data = 0x100;
+	int bit_idx = 0;
+	int *bit;
+
+	bpf_for_each(bits, bit, &data, 1) {
+		if (*bit == 0)
+			continue;
+		bit_idx = *bit;
+	}
+	return bit_idx;
+}
+
+SEC("syscall")
+__description("bits too big")
+__success __retval(0)
+int bits_too_big(void)
+{
+	u64 data[4];
+	int nr = 0;
+	int *bit;
+
+	__builtin_memset(&data, 0xff, sizeof(data));
+	bpf_for_each(bits, bit, &data[0], 512) /* Be greater than 511 */
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("fewer words")
+__success __retval(1)
+int fewer_words(void)
+{
+	u64 data[2] = {0x1, 0xff};
+	int nr = 0;
+	int *bit;
+
+	bpf_for_each(bits, bit, &data[0], 1)
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("zero words")
+__success __retval(0)
+int zero_words(void)
+{
+	u64 data[2] = {0x1, 0xff};
+	int nr = 0;
+	int *bit;
+
+	bpf_for_each(bits, bit, &data[0], 0)
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("huge words")
+__success __retval(0)
+int huge_words(void)
+{
+	u64 data[8] = {0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1};
+	int nr = 0;
+	int *bit;
+
+	bpf_for_each(bits, bit, &data[0], 67108865)
+		nr++;
+	return nr;
+}
+
+SEC("syscall")
+__description("max words")
+__success __retval(4)
+int max_words(void)
+{
+	volatile int nr = 0;
+	int *bit;
+
+	bits_array[0] = (1ULL << 63) | 1U;
+	bits_array[510] = (1ULL << 33) | (1ULL << 32);
+
+	bpf_for_each(bits, bit, bits_array, 511) {
+		if (nr == 0 && *bit != 0)
+			break;
+		if (nr == 2 && *bit != 32672)
+			break;
+		nr++;
+	}
+	return nr;
+}
+
+SEC("syscall")
+__description("bad words")
+__success __retval(0)
+int bad_words(void)
+{
+	void *bad_addr = (void *)-4095;
+	struct bpf_iter_bits iter;
+	volatile int nr;
+	int *bit;
+	int err;
+
+	err = bpf_iter_bits_new(&iter, bad_addr, 1);
+	bpf_iter_bits_destroy(&iter);
+	if (err != -EFAULT)
+		return 1;
+
+	nr = 0;
+	bpf_for_each(bits, bit, bad_addr, 1)
+		nr++;
+	if (nr != 0)
+		return 2;
+
+	err = bpf_iter_bits_new(&iter, bad_addr, 4);
+	bpf_iter_bits_destroy(&iter);
+	if (err != -EFAULT)
+		return 3;
+
+	nr = 0;
+	bpf_for_each(bits, bit, bad_addr, 4)
+		nr++;
+	if (nr != 0)
+		return 4;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds.c b/tools/testing/selftests/bpf/progs/verifier_bounds.c
new file mode 100644
index 000000000000..411a18437d7e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bounds.c
@@ -0,0 +1,1866 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/bounds.c */
+
+#include <linux/bpf.h>
+#include <../../../include/linux/filter.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("subtraction bounds (map value) variant 1")
+__failure __msg("R0 max value is outside of the allowed memory range")
+__failure_unpriv
+__naked void bounds_map_value_variant_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	if r1 > 0xff goto l0_%=;			\
+	r3 = *(u8*)(r0 + 1);				\
+	if r3 > 0xff goto l0_%=;			\
+	r1 -= r3;					\
+	r1 >>= 56;					\
+	r0 += r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("subtraction bounds (map value) variant 2")
+__failure
+__msg("R0 min value is negative, either use unsigned index or do a if (index >=0) check.")
+__msg_unpriv("R1 has unknown scalar with mixed signed bounds")
+__naked void bounds_map_value_variant_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	if r1 > 0xff goto l0_%=;			\
+	r3 = *(u8*)(r0 + 1);				\
+	if r3 > 0xff goto l0_%=;			\
+	r1 -= r3;					\
+	r0 += r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check subtraction on pointers for unpriv")
+__success __failure_unpriv __msg_unpriv("R9 pointer -= pointer prohibited")
+__retval(0)
+__naked void subtraction_on_pointers_for_unpriv(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = %[map_hash_8b] ll;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r6 = 9;						\
+	*(u64*)(r2 + 0) = r6;				\
+	call %[bpf_map_lookup_elem];			\
+	r9 = r10;					\
+	r9 -= r0;					\
+	r1 = %[map_hash_8b] ll;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r6 = 0;						\
+	*(u64*)(r2 + 0) = r6;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	*(u64*)(r0 + 0) = r9;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check based on zero-extended MOV")
+__success __success_unpriv __retval(0)
+__naked void based_on_zero_extended_mov(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r2 = 0x0000'0000'ffff'ffff */		\
+	w2 = 0xffffffff;				\
+	/* r2 = 0 */					\
+	r2 >>= 32;					\
+	/* no-op */					\
+	r0 += r2;					\
+	/* access at offset 0 */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check based on sign-extended MOV. test1")
+__failure __msg("map_value pointer and 4294967295")
+__failure_unpriv
+__naked void on_sign_extended_mov_test1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r2 = 0xffff'ffff'ffff'ffff */		\
+	r2 = 0xffffffff;				\
+	/* r2 = 0xffff'ffff */				\
+	r2 >>= 32;					\
+	/* r0 = <oob pointer> */			\
+	r0 += r2;					\
+	/* access to OOB pointer */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check based on sign-extended MOV. test2")
+__failure __msg("R0 min value is outside of the allowed memory range")
+__failure_unpriv
+__naked void on_sign_extended_mov_test2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r2 = 0xffff'ffff'ffff'ffff */		\
+	r2 = 0xffffffff;				\
+	/* r2 = 0xfff'ffff */				\
+	r2 >>= 36;					\
+	/* r0 = <oob pointer> */			\
+	r0 += r2;					\
+	/* access to OOB pointer */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bounds check based on reg_off + var_off + insn_off. test1")
+__failure __msg("value_size=8 off=1073741825")
+__naked void var_off_insn_off_test1(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r6 &= 1;					\
+	r6 += %[__imm_0];				\
+	r0 += r6;					\
+	r0 += %[__imm_0];				\
+l0_%=:	r0 = *(u8*)(r0 + 3);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__imm_0, (1 << 29) - 1),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bounds check based on reg_off + var_off + insn_off. test2")
+__failure __msg("value 1073741823")
+__naked void var_off_insn_off_test2(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r6 &= 1;					\
+	r6 += %[__imm_0];				\
+	r0 += r6;					\
+	r0 += %[__imm_1];				\
+l0_%=:	r0 = *(u8*)(r0 + 3);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__imm_0, (1 << 30) - 1),
+	  __imm_const(__imm_1, (1 << 29) - 1),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after truncation of non-boundary-crossing range")
+__success __success_unpriv __retval(0)
+__naked void of_non_boundary_crossing_range(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r1 = [0x00, 0xff] */				\
+	r1 = *(u8*)(r0 + 0);				\
+	r2 = 1;						\
+	/* r2 = 0x10'0000'0000 */			\
+	r2 <<= 36;					\
+	/* r1 = [0x10'0000'0000, 0x10'0000'00ff] */	\
+	r1 += r2;					\
+	/* r1 = [0x10'7fff'ffff, 0x10'8000'00fe] */	\
+	r1 += 0x7fffffff;				\
+	/* r1 = [0x00, 0xff] */				\
+	w1 -= 0x7fffffff;				\
+	/* r1 = 0 */					\
+	r1 >>= 8;					\
+	/* no-op */					\
+	r0 += r1;					\
+	/* access at offset 0 */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after truncation of boundary-crossing range (1)")
+__failure
+/* not actually fully unbounded, but the bound is very high */
+__msg("value -4294967168 makes map_value pointer be out of bounds")
+__failure_unpriv
+__naked void of_boundary_crossing_range_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r1 = [0x00, 0xff] */				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 += %[__imm_0];				\
+	/* r1 = [0xffff'ff80, 0x1'0000'007f] */		\
+	r1 += %[__imm_0];				\
+	/* r1 = [0xffff'ff80, 0xffff'ffff] or		\
+	 *      [0x0000'0000, 0x0000'007f]		\
+	 */						\
+	w1 += 0;					\
+	r1 -= %[__imm_0];				\
+	/* r1 = [0x00, 0xff] or				\
+	 *      [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]\
+	 */						\
+	r1 -= %[__imm_0];				\
+	/* error on OOB pointer computation */		\
+	r0 += r1;					\
+	/* exit */					\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__imm_0, 0xffffff80 >> 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after truncation of boundary-crossing range (2)")
+__failure __msg("value -4294967168 makes map_value pointer be out of bounds")
+__failure_unpriv
+__naked void of_boundary_crossing_range_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r1 = [0x00, 0xff] */				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 += %[__imm_0];				\
+	/* r1 = [0xffff'ff80, 0x1'0000'007f] */		\
+	r1 += %[__imm_0];				\
+	/* r1 = [0xffff'ff80, 0xffff'ffff] or		\
+	 *      [0x0000'0000, 0x0000'007f]		\
+	 * difference to previous test: truncation via MOV32\
+	 * instead of ALU32.				\
+	 */						\
+	w1 = w1;					\
+	r1 -= %[__imm_0];				\
+	/* r1 = [0x00, 0xff] or				\
+	 *      [0xffff'ffff'0000'0080, 0xffff'ffff'ffff'ffff]\
+	 */						\
+	r1 -= %[__imm_0];				\
+	/* error on OOB pointer computation */		\
+	r0 += r1;					\
+	/* exit */					\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__imm_0, 0xffffff80 >> 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after wrapping 32-bit addition")
+__success __success_unpriv __retval(0)
+__naked void after_wrapping_32_bit_addition(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r1 = 0x7fff'ffff */				\
+	r1 = 0x7fffffff;				\
+	/* r1 = 0xffff'fffe */				\
+	r1 += 0x7fffffff;				\
+	/* r1 = 0 */					\
+	w1 += 2;					\
+	/* no-op */					\
+	r0 += r1;					\
+	/* access at offset 0 */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after shift with oversized count operand")
+__failure __msg("R0 max value is outside of the allowed memory range")
+__failure_unpriv
+__naked void shift_with_oversized_count_operand(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = 32;					\
+	r1 = 1;						\
+	/* r1 = (u32)1 << (u32)32 = ? */		\
+	w1 <<= w2;					\
+	/* r1 = [0x0000, 0xffff] */			\
+	r1 &= 0xffff;					\
+	/* computes unknown pointer, potentially OOB */	\
+	r0 += r1;					\
+	/* potentially OOB access */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after right shift of maybe-negative number")
+__failure __msg("R0 unbounded memory access")
+__failure_unpriv
+__naked void shift_of_maybe_negative_number(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	/* r1 = [0x00, 0xff] */				\
+	r1 = *(u8*)(r0 + 0);				\
+	/* r1 = [-0x01, 0xfe] */			\
+	r1 -= 1;					\
+	/* r1 = 0 or 0xff'ffff'ffff'ffff */		\
+	r1 >>= 8;					\
+	/* r1 = 0 or 0xffff'ffff'ffff */		\
+	r1 >>= 8;					\
+	/* computes unknown pointer, potentially OOB */	\
+	r0 += r1;					\
+	/* potentially OOB access */			\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	/* exit */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check after 32-bit right shift with 64-bit input")
+__failure __msg("math between map_value pointer and 4294967294 is not allowed")
+__failure_unpriv
+__naked void shift_with_64_bit_input(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 2;						\
+	/* r1 = 1<<32 */				\
+	r1 <<= 31;					\
+	/* r1 = 0 (NOT 2!) */				\
+	w1 >>= 31;					\
+	/* r1 = 0xffff'fffe (NOT 0!) */			\
+	w1 -= 2;					\
+	/* error on computing OOB pointer */		\
+	r0 += r1;					\
+	/* exit */					\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check map access with off+size signed 32bit overflow. test1")
+__failure __msg("map_value pointer and 2147483646")
+__failure_unpriv
+__naked void size_signed_32bit_overflow_test1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 += 0x7ffffffe;				\
+	r0 = *(u64*)(r0 + 0);				\
+	goto l1_%=;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check map access with off+size signed 32bit overflow. test2")
+__failure __msg("pointer offset 1073741822")
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__naked void size_signed_32bit_overflow_test2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 += 0x1fffffff;				\
+	r0 += 0x1fffffff;				\
+	r0 += 0x1fffffff;				\
+	r0 = *(u64*)(r0 + 0);				\
+	goto l1_%=;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check map access with off+size signed 32bit overflow. test3")
+__failure __msg("pointer offset -1073741822")
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__naked void size_signed_32bit_overflow_test3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 -= 0x1fffffff;				\
+	r0 -= 0x1fffffff;				\
+	r0 = *(u64*)(r0 + 2);				\
+	goto l1_%=;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check map access with off+size signed 32bit overflow. test4")
+__failure __msg("map_value pointer and 1000000000000")
+__failure_unpriv
+__naked void size_signed_32bit_overflow_test4(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = 1000000;					\
+	r1 *= 1000000;					\
+	r0 += r1;					\
+	r0 = *(u64*)(r0 + 2);				\
+	goto l1_%=;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check mixed 32bit and 64bit arithmetic. test1")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 invalid mem access 'scalar'` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("exit")
+#endif
+__naked void _32bit_and_64bit_arithmetic_test1(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = -1;					\
+	r1 <<= 32;					\
+	r1 += 1;					\
+	/* r1 = 0xffffFFFF00000001 */			\
+	if w1 > 1 goto l0_%=;				\
+	/* check ALU64 op keeps 32bit bounds */		\
+	r1 += 1;					\
+	if w1 > 2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	/* invalid ldx if bounds are lost above */	\
+	r0 = *(u64*)(r0 - 1);				\
+l1_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check mixed 32bit and 64bit arithmetic. test2")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 invalid mem access 'scalar'` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("exit")
+#endif
+__naked void _32bit_and_64bit_arithmetic_test2(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = -1;					\
+	r1 <<= 32;					\
+	r1 += 1;					\
+	/* r1 = 0xffffFFFF00000001 */			\
+	r2 = 3;						\
+	/* r1 = 0x2 */					\
+	w1 += 1;					\
+	/* check ALU32 op zero extends 64bit bounds */	\
+	if r1 > r2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	/* invalid ldx if bounds are lost above */	\
+	r0 = *(u64*)(r0 - 1);				\
+l1_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("assigning 32bit bounds to 64bit for wA = 0, wB = wA")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void for_wa_0_wb_wa(void)
+{
+	asm volatile ("					\
+	r8 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r7 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	w9 = 0;						\
+	w2 = w9;					\
+	r6 = r7;					\
+	r6 += r2;					\
+	r3 = r6;					\
+	r3 += 8;					\
+	if r3 > r8 goto l0_%=;				\
+	r5 = *(u32*)(r6 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg = 0, reg xor 1")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if r1 != 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 min value is outside of the allowed memory range` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void reg_0_reg_xor_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = 0;						\
+	r1 ^= 1;					\
+	if r1 != 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg32 = 0, reg32 xor 1")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if w1 != 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 min value is outside of the allowed memory range` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void reg32_0_reg32_xor_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	w1 = 0;						\
+	w1 ^= 1;					\
+	if w1 != 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg = 2, reg xor 3")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if r1 > 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 min value is outside of the allowed memory range` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void reg_2_reg_xor_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = 2;						\
+	r1 ^= 3;					\
+	if r1 > 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg = any, reg xor 3")
+__failure __msg("invalid access to map value")
+__msg_unpriv("invalid access to map value")
+__naked void reg_any_reg_xor_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = *(u64*)(r0 + 0);				\
+	r1 ^= 3;					\
+	if r1 != 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg32 = any, reg32 xor 3")
+__failure __msg("invalid access to map value")
+__msg_unpriv("invalid access to map value")
+__naked void reg32_any_reg32_xor_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = *(u64*)(r0 + 0);				\
+	w1 ^= 3;					\
+	if w1 != 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg > 0, reg xor 3")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if r1 >= 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 min value is outside of the allowed memory range` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void reg_0_reg_xor_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = *(u64*)(r0 + 0);				\
+	if r1 <= 0 goto l1_%=;				\
+	r1 ^= 3;					\
+	if r1 >= 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for reg32 > 0, reg32 xor 3")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if w1 >= 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 min value is outside of the allowed memory range` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("r0 = 0")
+#endif
+__naked void reg32_0_reg32_xor_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = *(u64*)(r0 + 0);				\
+	if w1 <= 0 goto l1_%=;				\
+	w1 ^= 3;					\
+	if w1 >= 0 goto l1_%=;				\
+	r0 = *(u64*)(r0 + 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for non const xor src dst")
+__success __log_level(2)
+__msg("5: (af) r0 ^= r6                      ; R0=scalar(smin=smin32=0,smax=umax=smax32=umax32=431,var_off=(0x0; 0x1af))")
+__naked void non_const_xor_src_dst(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 &= 0xaf;					\
+	r0 &= 0x1a0;					\
+	r0 ^= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	__imm_addr(map_hash_8b),
+	__imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for non const or src dst")
+__success __log_level(2)
+__msg("5: (4f) r0 |= r6                      ; R0=scalar(smin=smin32=0,smax=umax=smax32=umax32=431,var_off=(0x0; 0x1af))")
+__naked void non_const_or_src_dst(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 &= 0xaf;					\
+	r0 &= 0x1a0;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	__imm_addr(map_hash_8b),
+	__imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds check for non const mul regs")
+__success __log_level(2)
+__msg("5: (2f) r0 *= r6                      ; R0=scalar(smin=smin32=0,smax=umax=smax32=umax32=3825,var_off=(0x0; 0xfff))")
+__naked void non_const_mul_regs(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];                    \
+	r6 &= 0xff;					\
+	r0 &= 0x0f;					\
+	r0 *= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	__imm_addr(map_hash_8b),
+	__imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks after 32-bit truncation. test 1")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void _32_bit_truncation_test_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	/* This used to reduce the max bound to 0x7fffffff */\
+	if r1 == 0 goto l1_%=;				\
+	if r1 > 0x7fffffff goto l0_%=;			\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks after 32-bit truncation. test 2")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void _32_bit_truncation_test_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	if r1 s< 1 goto l1_%=;				\
+	if w1 s< 0 goto l0_%=;				\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bound check with JMP_JLT for crossing 64-bit signed boundary")
+__success __retval(0)
+__naked void crossing_64_bit_signed_boundary_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 1;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = *(u8*)(r2 + 0);				\
+	r0 = 0x7fffffffffffff10 ll;			\
+	r1 += r0;					\
+	r0 = 0x8000000000000000 ll;			\
+l1_%=:	r0 += 1;					\
+	/* r1 unsigned range is [0x7fffffffffffff10, 0x800000000000000f] */\
+	if r0 < r1 goto l1_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bound check with JMP_JSLT for crossing 64-bit signed boundary")
+__success __retval(0)
+__flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void crossing_64_bit_signed_boundary_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 1;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = *(u8*)(r2 + 0);				\
+	r0 = 0x7fffffffffffff10 ll;			\
+	r1 += r0;					\
+	r2 = 0x8000000000000fff ll;			\
+	r0 = 0x8000000000000000 ll;			\
+l1_%=:	r0 += 1;					\
+	if r0 s> r2 goto l0_%=;				\
+	/* r1 signed range is [S64_MIN, S64_MAX] */	\
+	if r0 s< r1 goto l1_%=;				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bound check for loop upper bound greater than U32_MAX")
+__success __retval(0)
+__naked void bound_greater_than_u32_max(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 1;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = *(u8*)(r2 + 0);				\
+	r0 = 0x100000000 ll;				\
+	r1 += r0;					\
+	r0 = 0x100000000 ll;				\
+l1_%=:	r0 += 1;					\
+	if r0 < r1 goto l1_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bound check with JMP32_JLT for crossing 32-bit signed boundary")
+__success __retval(0)
+__naked void crossing_32_bit_signed_boundary_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 1;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = *(u8*)(r2 + 0);				\
+	w0 = 0x7fffff10;				\
+	w1 += w0;					\
+	w0 = 0x80000000;				\
+l1_%=:	w0 += 1;					\
+	/* r1 unsigned range is [0, 0x8000000f] */	\
+	if w0 < w1 goto l1_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bound check with JMP32_JSLT for crossing 32-bit signed boundary")
+__success __retval(0)
+__flag(!BPF_F_TEST_REG_INVARIANTS) /* known invariants violation */
+__naked void crossing_32_bit_signed_boundary_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 1;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = *(u8*)(r2 + 0);				\
+	w0 = 0x7fffff10;				\
+	w1 += w0;					\
+	w2 = 0x80000fff;				\
+	w0 = 0x80000000;				\
+l1_%=:	w0 += 1;					\
+	if w0 s> w2 goto l0_%=;				\
+	/* r1 signed range is [S32_MIN, S32_MAX] */	\
+	if w0 s< w1 goto l1_%=;				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bounds check with JMP_NE for reg edge")
+__success __retval(0)
+__naked void reg_not_equal_const(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	call %[bpf_get_prandom_u32];			\
+	r4 = r0;					\
+	r4 &= 7;					\
+	if r4 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r1 = r6;					\
+	r2 = 0;						\
+	r3 = r10;					\
+	r3 += -8;					\
+	r5 = 0;						\
+	/* The 4th argument of bpf_skb_store_bytes is defined as \
+	 * ARG_CONST_SIZE, so 0 is not allowed. The 'r4 != 0' \
+	 * is providing us this exclusion of zero from initial \
+	 * [0, 7] range.				\
+	 */						\
+	call %[bpf_skb_store_bytes];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bounds check with JMP_EQ for reg edge")
+__success __retval(0)
+__naked void reg_equal_const(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	call %[bpf_get_prandom_u32];			\
+	r4 = r0;					\
+	r4 &= 7;					\
+	if r4 == 0 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 0;						\
+	r3 = r10;					\
+	r3 += -8;					\
+	r5 = 0;						\
+	/* Just the same as what we do in reg_not_equal_const() */ \
+	call %[bpf_skb_store_bytes];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiply mixed sign bounds. test 1")
+__success __log_level(2)
+__msg("r6 *= r7 {{.*}}; R6=scalar(smin=umin=0x1bc16d5cd4927ee1,smax=umax=0x1bc16d674ec80000,smax32=0x7ffffeff,umax32=0xfffffeff,var_off=(0x1bc16d4000000000; 0x3ffffffeff))")
+__naked void mult_mixed0_sign(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= 0xf;"
+	"r6 -= 1000000000;"
+	"r7 &= 0xf;"
+	"r7 -= 2000000000;"
+	"r6 *= r7;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiply mixed sign bounds. test 2")
+__success __log_level(2)
+__msg("r6 *= r7 {{.*}}; R6=scalar(smin=smin32=-100,smax=smax32=200)")
+__naked void mult_mixed1_sign(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= 0xf;"
+	"r6 -= 0xa;"
+	"r7 &= 0xf;"
+	"r7 -= 0x14;"
+	"r6 *= r7;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiply negative bounds")
+__success __log_level(2)
+__msg("r6 *= r7 {{.*}}; R6=scalar(smin=umin=smin32=umin32=0x3ff280b0,smax=umax=smax32=umax32=0x3fff0001,var_off=(0x3ff00000; 0xf81ff))")
+__naked void mult_sign_bounds(void)
+{
+	asm volatile (
+	"r8 = 0x7fff;"
+	"call %[bpf_get_prandom_u32];"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= 0xa;"
+	"r6 -= r8;"
+	"r7 &= 0xf;"
+	"r7 -= r8;"
+	"r6 *= r7;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiply bounds that don't cross signed boundary")
+__success __log_level(2)
+__msg("r8 *= r6 {{.*}}; R6=scalar(smin=smin32=0,smax=umax=smax32=umax32=11,var_off=(0x0; 0xb)) R8=scalar(smin=0,smax=umax=0x7b96bb0a94a3a7cd,var_off=(0x0; 0x7fffffffffffffff))")
+__naked void mult_no_sign_crossing(void)
+{
+	asm volatile (
+	"r6 = 0xb;"
+	"r8 = 0xb3c3f8c99262687 ll;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= r7;"
+	"r8 *= r6;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiplication overflow, result in unbounded reg. test 1")
+__success __log_level(2)
+__msg("r6 *= r7 {{.*}}; R6=scalar()")
+__naked void mult_unsign_ovf(void)
+{
+	asm volatile (
+	"r8 = 0x7ffffffffff ll;"
+	"call %[bpf_get_prandom_u32];"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= 0x7fffffff;"
+	"r7 &= r8;"
+	"r6 *= r7;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("multiplication overflow, result in unbounded reg. test 2")
+__success __log_level(2)
+__msg("r6 *= r7 {{.*}}; R6=scalar()")
+__naked void mult_sign_ovf(void)
+{
+	asm volatile (
+	"r8 = 0x7ffffffff ll;"
+	"call %[bpf_get_prandom_u32];"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r6 &= 0xa;"
+	"r6 -= r8;"
+	"r7 &= 0x7fffffff;"
+	"r6 *= r7;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_skb_store_bytes)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("64-bit addition, all outcomes overflow")
+__success __log_level(2)
+__msg("5: (0f) r3 += r3 {{.*}} R3=scalar(umin=0x4000000000000000,umax=0xfffffffffffffffe)")
+__retval(0)
+__naked void add64_full_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r4 = r0;"
+	"r3 = 0xa000000000000000 ll;"
+	"r3 |= r4;"
+	"r3 += r3;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("64-bit addition, partial overflow, result in unbounded reg")
+__success __log_level(2)
+__msg("4: (0f) r3 += r3 {{.*}} R3=scalar()")
+__retval(0)
+__naked void add64_partial_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r4 = r0;"
+	"r3 = 2;"
+	"r3 |= r4;"
+	"r3 += r3;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("32-bit addition overflow, all outcomes overflow")
+__success __log_level(2)
+__msg("4: (0c) w3 += w3 {{.*}} R3=scalar(smin=umin=umin32=0x40000000,smax=umax=umax32=0xfffffffe,var_off=(0x0; 0xffffffff))")
+__retval(0)
+__naked void add32_full_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"w4 = w0;"
+	"w3 = 0xa0000000;"
+	"w3 |= w4;"
+	"w3 += w3;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("32-bit addition, partial overflow, result in unbounded u32 bounds")
+__success __log_level(2)
+__msg("4: (0c) w3 += w3 {{.*}} R3=scalar(smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))")
+__retval(0)
+__naked void add32_partial_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"w4 = w0;"
+	"w3 = 2;"
+	"w3 |= w4;"
+	"w3 += w3;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("64-bit subtraction, all outcomes underflow")
+__success __log_level(2)
+__msg("6: (1f) r3 -= r1 {{.*}} R3=scalar(umin=1,umax=0x8000000000000000)")
+__retval(0)
+__naked void sub64_full_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r1 = r0;"
+	"r2 = 0x8000000000000000 ll;"
+	"r1 |= r2;"
+	"r3 = 0;"
+	"r3 -= r1;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("64-bit subtraction, partial overflow, result in unbounded reg")
+__success __log_level(2)
+__msg("3: (1f) r3 -= r2 {{.*}} R3=scalar()")
+__retval(0)
+__naked void sub64_partial_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r3 = r0;"
+	"r2 = 1;"
+	"r3 -= r2;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("32-bit subtraction overflow, all outcomes underflow")
+__success __log_level(2)
+__msg("5: (1c) w3 -= w1 {{.*}} R3=scalar(smin=umin=umin32=1,smax=umax=umax32=0x80000000,var_off=(0x0; 0xffffffff))")
+__retval(0)
+__naked void sub32_full_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"w1 = w0;"
+	"w2 = 0x80000000;"
+	"w1 |= w2;"
+	"w3 = 0;"
+	"w3 -= w1;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("32-bit subtraction, partial overflow, result in unbounded u32 bounds")
+__success __log_level(2)
+__msg("3: (1c) w3 -= w2 {{.*}} R3=scalar(smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))")
+__retval(0)
+__naked void sub32_partial_overflow(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"w3 = w0;"
+	"w2 = 1;"
+	"w3 -= w2;"
+	"r0 = 0;"
+	"exit"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("dead branch on jset, does not result in invariants violation error")
+__success __log_level(2)
+__retval(0) __flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_range_analysis(void)
+{
+	asm volatile ("			\
+	call %[bpf_get_netns_cookie];	\
+	if r0 == 0 goto l0_%=;		\
+	if r0 & 0xffffffff goto +0; 	\
+l0_%=:	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+/* This test covers the bounds deduction on 64bits when the s64 and u64 ranges
+ * overlap on the negative side. At instruction 7, the ranges look as follows:
+ *
+ * 0          umin=0xfffffcf1                 umax=0xff..ff6e  U64_MAX
+ * |                [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]        |
+ * |----------------------------|------------------------------|
+ * |xxxxxxxxxx]                                   [xxxxxxxxxxxx|
+ * 0    smax=0xeffffeee                       smin=-655        -1
+ *
+ * We should therefore deduce the following new bounds:
+ *
+ * 0                             u64=[0xff..ffd71;0xff..ff6e]  U64_MAX
+ * |                                              [xxx]        |
+ * |----------------------------|------------------------------|
+ * |                                              [xxx]        |
+ * 0                                        s64=[-655;-146]    -1
+ *
+ * Without the deduction cross sign boundary, we end up with an invariant
+ * violation error.
+ */
+SEC("socket")
+__description("bounds deduction cross sign boundary, negative overlap")
+__success __log_level(2) __flag(BPF_F_TEST_REG_INVARIANTS)
+__msg("7: (1f) r0 -= r6 {{.*}} R0=scalar(smin=smin32=-655,smax=smax32=-146,umin=0xfffffffffffffd71,umax=0xffffffffffffff6e,umin32=0xfffffd71,umax32=0xffffff6e,var_off=(0xfffffffffffffc00; 0x3ff))")
+__retval(0)
+__naked void bounds_deduct_negative_overlap(void)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	w3 = w0;			\
+	w6 = (s8)w0;			\
+	r0 = (s8)r0;			\
+	if w6 >= 0xf0000000 goto l0_%=;	\
+	r0 += r6;			\
+	r6 += 400;			\
+	r0 -= r6;			\
+	if r3 < r0 goto l0_%=;		\
+l0_%=:	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/* This test covers the bounds deduction on 64bits when the s64 and u64 ranges
+ * overlap on the positive side. At instruction 3, the ranges look as follows:
+ *
+ * 0 umin=0                      umax=0xffffffffffffff00       U64_MAX
+ * [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]            |
+ * |----------------------------|------------------------------|
+ * |xxxxxxxx]                                         [xxxxxxxx|
+ * 0      smax=127                                smin=-128    -1
+ *
+ * We should therefore deduce the following new bounds:
+ *
+ * 0  u64=[0;127]                                              U64_MAX
+ * [xxxxxxxx]                                                  |
+ * |----------------------------|------------------------------|
+ * [xxxxxxxx]                                                  |
+ * 0  s64=[0;127]                                              -1
+ *
+ * Without the deduction cross sign boundary, the program is rejected due to
+ * the frame pointer write.
+ */
+SEC("socket")
+__description("bounds deduction cross sign boundary, positive overlap")
+__success __log_level(2) __flag(BPF_F_TEST_REG_INVARIANTS)
+__msg("3: (2d) if r0 > r1 {{.*}} R0=scalar(smin=smin32=0,smax=umax=smax32=umax32=127,var_off=(0x0; 0x7f))")
+__retval(0)
+__naked void bounds_deduct_positive_overlap(void)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	r0 = (s8)r0;			\
+	r1 = 0xffffffffffffff00;	\
+	if r0 > r1 goto l0_%=;		\
+	if r0 < 128 goto l0_%=;		\
+	r10 = 0;			\
+l0_%=:	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/* This test is the same as above, but the s64 and u64 ranges overlap in two
+ * places. At instruction 3, the ranges look as follows:
+ *
+ * 0 umin=0                           umax=0xffffffffffffff80  U64_MAX
+ * [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]        |
+ * |----------------------------|------------------------------|
+ * |xxxxxxxx]                                         [xxxxxxxx|
+ * 0      smax=127                                smin=-128    -1
+ *
+ * 0xffffffffffffff80 = (u64)-128. We therefore can't deduce anything new and
+ * the program should fail due to the frame pointer write.
+ */
+SEC("socket")
+__description("bounds deduction cross sign boundary, two overlaps")
+__failure __flag(BPF_F_TEST_REG_INVARIANTS)
+__msg("3: (2d) if r0 > r1 {{.*}} R0=scalar(smin=smin32=-128,smax=smax32=127,umax=0xffffffffffffff80)")
+__msg("frame pointer is read only")
+__naked void bounds_deduct_two_overlaps(void)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	r0 = (s8)r0;			\
+	r1 = 0xffffffffffffff80;	\
+	if r0 > r1 goto l0_%=;		\
+	if r0 < 128 goto l0_%=;		\
+	r10 = 0;			\
+l0_%=:	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("dead jne branch due to disagreeing tnums")
+__success __log_level(2)
+__naked void jne_disagreeing_tnums(void *ctx)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	w0 = w0;			\
+	r0 >>= 30;			\
+	r0 <<= 30;			\
+	r1 = r0;			\
+	r1 += 1024;			\
+	if r1 != r0 goto +1;		\
+	r10 = 0;			\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("dead jeq branch due to disagreeing tnums")
+__success __log_level(2)
+__naked void jeq_disagreeing_tnums(void *ctx)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	w0 = w0;			\
+	r0 >>= 30;			\
+	r0 <<= 30;			\
+	r1 = r0;			\
+	r1 += 1024;			\
+	if r1 == r0 goto +1;		\
+	exit;				\
+	r10 = 0;			\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("conditional jump on same register, branch taken")
+__not_msg("20: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__retval(0) __flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void condition_jump_on_same_register(void *ctx)
+{
+	asm volatile("			\
+	call %[bpf_get_prandom_u32];	\
+	w8 = 0x80000000;		\
+	r0 &= r8;			\
+	if r0 == r0 goto +1;		\
+	goto l1_%=;			\
+	if r0 >= r0 goto +1;		\
+	goto l1_%=;			\
+	if r0 s>= r0 goto +1;		\
+	goto l1_%=;			\
+	if r0 <= r0 goto +1;		\
+	goto l1_%=;			\
+	if r0 s<= r0 goto +1;		\
+	goto l1_%=;			\
+	if r0 != r0 goto l1_%=;		\
+	if r0 >  r0 goto l1_%=;		\
+	if r0 s> r0 goto l1_%=;		\
+	if r0 <  r0 goto l1_%=;		\
+	if r0 s< r0 goto l1_%=;		\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("jset on same register, constant value branch taken")
+__not_msg("7: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__retval(0) __flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_on_same_register_1(void *ctx)
+{
+	asm volatile("			\
+	r0 = 0;				\
+	if r0 & r0 goto l1_%=;		\
+	r0 = 1;				\
+	if r0 & r0 goto +1;		\
+	goto l1_%=;			\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("jset on same register, scalar value branch taken")
+__not_msg("12: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__retval(0) __flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_on_same_register_2(void *ctx)
+{
+	asm volatile("			\
+	/* range [1;2] */		\
+	call %[bpf_get_prandom_u32];	\
+	r0 &= 0x1;			\
+	r0 += 1;			\
+	if r0 & r0 goto +1;		\
+	goto l1_%=;			\
+	/* range [-2;-1] */		\
+	call %[bpf_get_prandom_u32];	\
+	r0 &= 0x1;			\
+	r0 -= 2;			\
+	if r0 & r0 goto +1;		\
+	goto l1_%=;			\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("jset on same register, scalar value unknown branch 1")
+__msg("3: (b7) r0 = 0 {{.*}} R0=0")
+__msg("5: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_on_same_register_3(void *ctx)
+{
+	asm volatile("			\
+	/* range [0;1] */		\
+	call %[bpf_get_prandom_u32];	\
+	r0 &= 0x1;			\
+	if r0 & r0 goto l1_%=;		\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("jset on same register, scalar value unknown branch 2")
+__msg("4: (b7) r0 = 0 {{.*}} R0=0")
+__msg("6: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_on_same_register_4(void *ctx)
+{
+	asm volatile("			\
+	/* range [-1;0] */		\
+	call %[bpf_get_prandom_u32];	\
+	r0 &= 0x1;			\
+	r0 -= 1;			\
+	if r0 & r0 goto l1_%=;		\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("jset on same register, scalar value unknown branch 3")
+__msg("4: (b7) r0 = 0 {{.*}} R0=0")
+__msg("6: (b7) r0 = 1 {{.*}} R0=1")
+__success __log_level(2)
+__flag(BPF_F_TEST_REG_INVARIANTS)
+__naked void jset_on_same_register_5(void *ctx)
+{
+	asm volatile("			\
+	/* range [-1;1] */		\
+	call %[bpf_get_prandom_u32];	\
+	r0 &= 0x2;			\
+	r0 -= 1;			\
+	if r0 & r0 goto l1_%=;		\
+l0_%=:	r0 = 0;				\
+	exit;				\
+l1_%=:	r0 = 1;				\
+	exit;				\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds_deduction.c b/tools/testing/selftests/bpf/progs/verifier_bounds_deduction.c
new file mode 100644
index 000000000000..260a6df264e3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bounds_deduction.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/bounds_deduction.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("check deducing bounds from const, 1")
+__failure __msg("R0 tried to subtract pointer from scalar")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__naked void deducing_bounds_from_const_1(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	if r0 s>= 1 goto l0_%=;				\
+l0_%=:	r0 -= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 2")
+__success __failure_unpriv
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__retval(1)
+__naked void deducing_bounds_from_const_2(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	if r0 s>= 1 goto l0_%=;				\
+	exit;						\
+l0_%=:	if r0 s<= 1 goto l1_%=;				\
+	exit;						\
+l1_%=:	r1 -= r0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 3")
+__failure __msg("R0 tried to subtract pointer from scalar")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__naked void deducing_bounds_from_const_3(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 s<= 0 goto l0_%=;				\
+l0_%=:	r0 -= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 4")
+__success __failure_unpriv
+__msg_unpriv("R6 has pointer with unsupported alu operation")
+__retval(0)
+__naked void deducing_bounds_from_const_4(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r0 = 0;						\
+	if r0 s<= 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	if r0 s>= 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r6 -= r0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 5")
+__failure __msg("R0 tried to subtract pointer from scalar")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__naked void deducing_bounds_from_const_5(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 s>= 1 goto l0_%=;				\
+	r0 -= r1;					\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 6")
+__failure __msg("R0 tried to subtract pointer from scalar")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__naked void deducing_bounds_from_const_6(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 s>= 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 -= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 7")
+__failure __msg("dereference of modified ctx ptr")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void deducing_bounds_from_const_7(void)
+{
+	asm volatile ("					\
+	r0 = %[__imm_0];				\
+	if r0 s>= 0 goto l0_%=;				\
+l0_%=:	r1 -= r0;					\
+	r0 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, ~0),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 8")
+__failure __msg("negative offset ctx ptr R1 off=-1 disallowed")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void deducing_bounds_from_const_8(void)
+{
+	asm volatile ("					\
+	r0 = %[__imm_0];				\
+	if r0 s>= 0 goto l0_%=;				\
+	r1 += r0;					\
+l0_%=:	r0 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, ~0),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 9")
+__failure __msg("R0 tried to subtract pointer from scalar")
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__naked void deducing_bounds_from_const_9(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 s>= 0 goto l0_%=;				\
+l0_%=:	r0 -= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from const, 10")
+__failure
+__msg("math between ctx pointer and register with unbounded min value is not allowed")
+__failure_unpriv
+__naked void deducing_bounds_from_const_10(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r0 = 0;						\
+	if r0 s<= 0 goto l0_%=;				\
+l0_%=: /* Marks r0 as unknown. */			\
+	call %[bpf_get_prandom_u32];			\
+	r0 -= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds_deduction_non_const.c b/tools/testing/selftests/bpf/progs/verifier_bounds_deduction_non_const.c
new file mode 100644
index 000000000000..823f727cf210
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bounds_deduction_non_const.c
@@ -0,0 +1,639 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <non_const> == <const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 3 goto l0_%=;				\
+	r2 = 2;						\
+	if r0 == r2 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <non_const> == <const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 > 3 goto l0_%=;				\
+	r2 = 4;						\
+	if r0 == r2 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <non_const> != <const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_3(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 3 goto l0_%=;				\
+	r2 = 2;						\
+	if r0 != r2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <non_const> != <const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_4(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 > 3 goto l0_%=;				\
+	r2 = 4;						\
+	if r0 != r2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <non_const> == <const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_5(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 4 goto l0_%=;				\
+	w2 = 3;						\
+	if w0 == w2 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <non_const> == <const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_6(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 > 4 goto l0_%=;				\
+	w2 = 5;						\
+	if w0 == w2 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <non_const> != <const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_7(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 3 goto l0_%=;				\
+	w2 = 2;						\
+	if w0 != w2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <non_const> != <const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_8(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 > 3 goto l0_%=;				\
+	w2 = 4;						\
+	if w0 != w2 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> > <non_const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_9(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	r2 = 0;						\
+	if r2 > r0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> > <non_const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_10(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 4 goto l0_%=;				\
+	r2 = 4;						\
+	if r2 > r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> >= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_11(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 4 goto l0_%=;				\
+	r2 = 3;						\
+	if r2 >= r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> < <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_12(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 > 4 goto l0_%=;				\
+	r2 = 4;						\
+	if r2 < r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> <= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_13(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 >= 4 goto l0_%=;				\
+	r2 = 4;						\
+	if r2 <= r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> == <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_14(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 3 goto l0_%=;				\
+	r2 = 2;						\
+	if r2 == r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> s> <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_15(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 s< 4 goto l0_%=;				\
+	r2 = 4;						\
+	if r2 s> r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> s>= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_16(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 s< 4 goto l0_%=;				\
+	r2 = 3;						\
+	if r2 s>= r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> s< <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_17(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 s> 4 goto l0_%=;				\
+	r2 = 4;						\
+	if r2 s< r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> s<= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_18(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 s> 4 goto l0_%=;				\
+	r2 = 5;						\
+	if r2 s<= r0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp64, <const> != <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_19(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 < 3 goto l0_%=;				\
+	r2 = 2;						\
+	if r2 != r0 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> > <non_const>, 1")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_20(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	w2 = 0;						\
+	if w2 > w0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> > <non_const>, 2")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_21(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 4 goto l0_%=;				\
+	w2 = 4;						\
+	if w2 > w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> >= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_22(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 4 goto l0_%=;				\
+	w2 = 3;						\
+	if w2 >= w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> < <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_23(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 > 4 goto l0_%=;				\
+	w2 = 4;						\
+	if w2 < w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> <= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_24(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 >= 4 goto l0_%=;				\
+	w2 = 4;						\
+	if w2 <= w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> == <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_25(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 4 goto l0_%=;				\
+	w2 = 3;						\
+	if w2 == w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> s> <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_26(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 s< 4 goto l0_%=;				\
+	w2 = 4;						\
+	if w2 s> w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> s>= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_27(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 s< 4 goto l0_%=;				\
+	w2 = 3;						\
+	if w2 s>= w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> s< <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_28(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 s> 4 goto l0_%=;				\
+	w2 = 5;						\
+	if w2 s< w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> s<= <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_29(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 s>= 4 goto l0_%=;				\
+	w2 = 4;						\
+	if w2 s<= w0 goto l1_%=;				\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check deducing bounds from non-const, jmp32, <const> != <non_const>")
+__success __retval(0)
+__naked void deducing_bounds_from_non_const_30(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if w0 < 3 goto l0_%=;				\
+	w2 = 2;						\
+	if w2 != w0 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:							\
+	r0 = 0;						\
+	exit;						\
+l1_%=:							\
+	r0 -= r1;					\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bounds_mix_sign_unsign.c b/tools/testing/selftests/bpf/progs/verifier_bounds_mix_sign_unsign.c
new file mode 100644
index 000000000000..4f40144748a5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bounds_mix_sign_unsign.c
@@ -0,0 +1,554 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/bounds_mix_sign_unsign.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, positive bounds")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_positive_bounds(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = 2;						\
+	if r2 >= r1 goto l0_%=;				\
+	if r1 s> 4 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void checks_mixing_signed_and_unsigned(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r1 > r2 goto l0_%=;				\
+	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 2")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r1 > r2 goto l0_%=;				\
+	r8 = 0;						\
+	r8 += r1;					\
+	if r8 s> 1 goto l0_%=;				\
+	r0 += r8;					\
+	r0 = 0;						\
+	*(u8*)(r8 + 0) = r0;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 3")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_3(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r1 > r2 goto l0_%=;				\
+	r8 = r1;					\
+	if r8 s> 1 goto l0_%=;				\
+	r0 += r8;					\
+	r0 = 0;						\
+	*(u8*)(r8 + 0) = r0;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 4")
+__success __success_unpriv __retval(0)
+__naked void signed_and_unsigned_variant_4(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = 1;						\
+	r1 &= r2;					\
+	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 5")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_5(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r1 > r2 goto l0_%=;				\
+	if r1 s> 1 goto l0_%=;				\
+	r0 += 4;					\
+	r0 -= r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 6")
+__failure __msg("R4 min value is negative, either use unsigned")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_6(void)
+{
+	asm volatile ("					\
+	r9 = r1;					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = r9;					\
+	r2 = 0;						\
+	r3 = r10;					\
+	r3 += -512;					\
+	r4 = *(u64*)(r10 - 16);				\
+	r6 = -1;					\
+	if r4 > r6 goto l0_%=;				\
+	if r4 s> 1 goto l0_%=;				\
+	r4 += 1;					\
+	r5 = 0;						\
+	r6 = 0;						\
+	*(u16*)(r10 - 512) = r6;			\
+	call %[bpf_skb_load_bytes];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 7")
+__success __success_unpriv __retval(0)
+__naked void signed_and_unsigned_variant_7(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = %[__imm_0];				\
+	if r1 > r2 goto l0_%=;				\
+	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__imm_0, 1024 * 1024 * 1024)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 8")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_8(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r2 > r1 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 9")
+__success __success_unpriv __retval(0)
+__naked void signed_and_unsigned_variant_9(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -9223372036854775808ULL ll;		\
+	if r2 > r1 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 10")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_10(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;						\
+	if r2 > r1 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 11")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_11(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	if r2 >= r1 goto l1_%=;				\
+	/* Dead branch. */				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 12")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_12(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -6;					\
+	if r2 >= r1 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 s> 1 goto l0_%=;				\
+	r0 += r1;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 13")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_13(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = 2;						\
+	if r2 >= r1 goto l0_%=;				\
+	r7 = 1;						\
+	if r7 s> 0 goto l1_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+l1_%=:	r7 += r1;					\
+	if r7 s> 4 goto l2_%=;				\
+	r0 += r7;					\
+	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 14")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_14(void)
+{
+	asm volatile ("					\
+	r9 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -1;					\
+	r8 = 2;						\
+	if r9 == 42 goto l1_%=;				\
+	if r8 s> r1 goto l2_%=;				\
+l3_%=:	if r1 s> 1 goto l2_%=;				\
+	r0 += r1;					\
+l0_%=:	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+l1_%=:	if r1 > r2 goto l2_%=;				\
+	goto l3_%=;					\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bounds checks mixing signed and unsigned, variant 15")
+__failure __msg("unbounded min value")
+__failure_unpriv
+__naked void signed_and_unsigned_variant_15(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r10 - 16);				\
+	r2 = -6;					\
+	if r2 >= r1 goto l1_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 += r1;					\
+	if r0 > 1 goto l2_%=;				\
+	r0 = 0;						\
+	exit;						\
+l2_%=:	r1 = 0;						\
+	*(u8*)(r0 + 0) = r1;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c b/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c
new file mode 100644
index 000000000000..fb4fa465d67c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bpf_fastcall.c
@@ -0,0 +1,888 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+#include <stdbool.h>
+#include "bpf_kfuncs.h"
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 8")
+__xlated("4: r5 = 5")
+__xlated("5: r0 = ")
+__xlated("6: r0 = &(void __percpu *)(r0)")
+__xlated("7: r0 = *(u32 *)(r0 +0)")
+__xlated("8: exit")
+__success
+__naked void simple(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"r2 = 2;"
+	"r3 = 3;"
+	"r4 = 4;"
+	"r5 = 5;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"*(u64 *)(r10 - 24) = r2;"
+	"*(u64 *)(r10 - 32) = r3;"
+	"*(u64 *)(r10 - 40) = r4;"
+	"*(u64 *)(r10 - 48) = r5;"
+	"call %[bpf_get_smp_processor_id];"
+	"r5 = *(u64 *)(r10 - 48);"
+	"r4 = *(u64 *)(r10 - 40);"
+	"r3 = *(u64 *)(r10 - 32);"
+	"r2 = *(u64 *)(r10 - 24);"
+	"r1 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+/* The logic for detecting and verifying bpf_fastcall pattern is the same for
+ * any arch, however x86 differs from arm64 or riscv64 in a way
+ * bpf_get_smp_processor_id is rewritten:
+ * - on x86 it is done by verifier
+ * - on arm64 and riscv64 it is done by jit
+ *
+ * Which leads to different xlated patterns for different archs:
+ * - on x86 the call is expanded as 3 instructions
+ * - on arm64 and riscv64 the call remains as is
+ *   (but spills/fills are still removed)
+ *
+ * It is really desirable to check instruction indexes in the xlated
+ * patterns, so add this canary test to check that function rewrite by
+ * jit is correctly processed by bpf_fastcall logic, keep the rest of the
+ * tests as x86.
+ */
+SEC("raw_tp")
+__arch_arm64
+__arch_riscv64
+__xlated("0: r1 = 1")
+__xlated("1: call bpf_get_smp_processor_id")
+__xlated("2: exit")
+__success
+__naked void canary_arm64_riscv64(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("3: exit")
+__success
+__naked void canary_zero_spills(void)
+{
+	asm volatile (
+	"call %[bpf_get_smp_processor_id];"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 16")
+__xlated("1: *(u64 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r2 = *(u64 *)(r10 -16)")
+__success
+__naked void wrong_reg_in_pattern1(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r2 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -16) = r6")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r6 = *(u64 *)(r10 -16)")
+__success
+__naked void wrong_reg_in_pattern2(void)
+{
+	asm volatile (
+	"r6 = 1;"
+	"*(u64 *)(r10 - 16) = r6;"
+	"call %[bpf_get_smp_processor_id];"
+	"r6 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -16) = r0")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r0 = *(u64 *)(r10 -16)")
+__success
+__naked void wrong_reg_in_pattern3(void)
+{
+	asm volatile (
+	"r0 = 1;"
+	"*(u64 *)(r10 - 16) = r0;"
+	"call %[bpf_get_smp_processor_id];"
+	"r0 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("2: *(u64 *)(r2 -16) = r1")
+__xlated("...")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("6: r1 = *(u64 *)(r10 -16)")
+__success
+__naked void wrong_base_in_pattern(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"r2 = r10;"
+	"*(u64 *)(r2 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r2 = 1")
+__success
+__naked void wrong_insn_in_pattern(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r2 = 1;"
+	"r1 = *(u64 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("2: *(u64 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("6: r1 = *(u64 *)(r10 -8)")
+__success
+__naked void wrong_off_in_pattern1(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u32 *)(r10 -4) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u32 *)(r10 -4)")
+__success
+__naked void wrong_off_in_pattern2(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u32 *)(r10 - 4) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u32 *)(r10 - 4);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u32 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u32 *)(r10 -16)")
+__success
+__naked void wrong_size_in_pattern(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u32 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u32 *)(r10 - 16);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("2: *(u32 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("6: r1 = *(u32 *)(r10 -8)")
+__success
+__naked void partial_pattern(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"r2 = 2;"
+	"*(u32 *)(r10 - 8) = r1;"
+	"*(u64 *)(r10 - 16) = r2;"
+	"call %[bpf_get_smp_processor_id];"
+	"r2 = *(u64 *)(r10 - 16);"
+	"r1 = *(u32 *)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("0: r1 = 1")
+__xlated("1: r2 = 2")
+/* not patched, spills for -8, -16 not removed */
+__xlated("2: *(u64 *)(r10 -8) = r1")
+__xlated("3: *(u64 *)(r10 -16) = r2")
+__xlated("...")
+__xlated("5: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("7: r2 = *(u64 *)(r10 -16)")
+__xlated("8: r1 = *(u64 *)(r10 -8)")
+/* patched, spills for -24, -32 removed */
+__xlated("...")
+__xlated("10: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("12: exit")
+__success
+__naked void min_stack_offset(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"r2 = 2;"
+	/* this call won't be patched */
+	"*(u64 *)(r10 - 8) = r1;"
+	"*(u64 *)(r10 - 16) = r2;"
+	"call %[bpf_get_smp_processor_id];"
+	"r2 = *(u64 *)(r10 - 16);"
+	"r1 = *(u64 *)(r10 - 8);"
+	/* this call would be patched */
+	"*(u64 *)(r10 - 24) = r1;"
+	"*(u64 *)(r10 - 32) = r2;"
+	"call %[bpf_get_smp_processor_id];"
+	"r2 = *(u64 *)(r10 - 32);"
+	"r1 = *(u64 *)(r10 - 24);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u64 *)(r10 -8)")
+__success
+__naked void bad_fixed_read(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"r1 = r10;"
+	"r1 += -8;"
+	"r1 = *(u64 *)(r1 - 0);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u64 *)(r10 -8)")
+__success
+__naked void bad_fixed_write(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"r1 = r10;"
+	"r1 += -8;"
+	"*(u64 *)(r1 - 0) = r1;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("6: *(u64 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("8: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("10: r1 = *(u64 *)(r10 -16)")
+__success
+__naked void bad_varying_read(void)
+{
+	asm volatile (
+	"r6 = *(u64 *)(r1 + 0);" /* random scalar value */
+	"r6 &= 0x7;"		 /* r6 range [0..7] */
+	"r6 += 0x2;"		 /* r6 range [2..9] */
+	"r7 = 0;"
+	"r7 -= r6;"		 /* r7 range [-9..-2] */
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"r1 = r10;"
+	"r1 += r7;"
+	"r1 = *(u8 *)(r1 - 0);" /* touches slot [-16..-9] where spills are stored */
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("6: *(u64 *)(r10 -16) = r1")
+__xlated("...")
+__xlated("8: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("10: r1 = *(u64 *)(r10 -16)")
+__success
+__naked void bad_varying_write(void)
+{
+	asm volatile (
+	"r6 = *(u64 *)(r1 + 0);" /* random scalar value */
+	"r6 &= 0x7;"		 /* r6 range [0..7] */
+	"r6 += 0x2;"		 /* r6 range [2..9] */
+	"r7 = 0;"
+	"r7 -= r6;"		 /* r7 range [-9..-2] */
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"r1 = r10;"
+	"r1 += r7;"
+	"*(u8 *)(r1 - 0) = r7;" /* touches slot [-16..-9] where spills are stored */
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u64 *)(r10 -8)")
+__success
+__naked void bad_write_in_subprog(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"r1 = r10;"
+	"r1 += -8;"
+	"call bad_write_in_subprog_aux;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+__used
+__naked static void bad_write_in_subprog_aux(void)
+{
+	asm volatile (
+	"r0 = 1;"
+	"*(u64 *)(r1 - 0) = r0;"	/* invalidates bpf_fastcall contract for caller: */
+	"exit;"				/* caller stack at -8 used outside of the pattern */
+	::: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__xlated("1: *(u64 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u64 *)(r10 -8)")
+__success
+__naked void bad_helper_write(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	/* bpf_fastcall pattern with stack offset -8 */
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"r1 = r10;"
+	"r1 += -8;"
+	"r2 = 1;"
+	"r3 = 42;"
+	/* read dst is fp[-8], thus bpf_fastcall rewrite not applied */
+	"call %[bpf_probe_read_kernel];"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id),
+	  __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+/* main, not patched */
+__xlated("1: *(u64 *)(r10 -8) = r1")
+__xlated("...")
+__xlated("3: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("5: r1 = *(u64 *)(r10 -8)")
+__xlated("...")
+__xlated("9: call pc+1")
+__xlated("...")
+__xlated("10: exit")
+/* subprogram, patched */
+__xlated("11: r1 = 1")
+__xlated("...")
+__xlated("13: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("15: exit")
+__success
+__naked void invalidate_one_subprog(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"r1 = r10;"
+	"r1 += -8;"
+	"r1 = *(u64 *)(r1 - 0);"
+	"call invalidate_one_subprog_aux;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+__used
+__naked static void invalidate_one_subprog_aux(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+/* main */
+__xlated("0: r1 = 1")
+__xlated("...")
+__xlated("2: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("4: call pc+1")
+__xlated("5: exit")
+/* subprogram */
+__xlated("6: r1 = 1")
+__xlated("...")
+__xlated("8: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+__xlated("10: *(u64 *)(r10 -16) = r1")
+__xlated("11: exit")
+__success
+__naked void subprogs_use_independent_offsets(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"call subprogs_use_independent_offsets_aux;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+__used
+__naked static void subprogs_use_independent_offsets_aux(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 24) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 24);"
+	"*(u64 *)(r10 - 16) = r1;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 8")
+__xlated("2: r0 = &(void __percpu *)(r0)")
+__success
+__naked void helper_call_does_not_prevent_bpf_fastcall(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_prandom_u32];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id),
+	  __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 24")
+/* may_goto counter at -24 */
+__xlated("0: *(u64 *)(r10 -24) =")
+/* may_goto timestamp at -16 */
+__xlated("1: *(u64 *)(r10 -16) =")
+__xlated("2: r1 = 1")
+__xlated("...")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("...")
+/* may_goto expansion starts */
+__xlated("6: r11 = *(u64 *)(r10 -24)")
+__xlated("7: if r11 == 0x0 goto pc+6")
+__xlated("8: r11 -= 1")
+__xlated("9: if r11 != 0x0 goto pc+2")
+__xlated("10: r11 = -24")
+__xlated("11: call unknown")
+__xlated("12: *(u64 *)(r10 -24) = r11")
+/* may_goto expansion ends */
+__xlated("13: *(u64 *)(r10 -8) = r1")
+__xlated("14: exit")
+__success
+__naked void may_goto_interaction_x86_64(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	".8byte %[may_goto];"
+	/* just touch some stack at -8 */
+	"*(u64 *)(r10 - 8) = r1;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id),
+	  __imm_insn(may_goto, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, +1 /* offset */, 0))
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_arm64
+__log_level(4) __msg("stack depth 24")
+/* may_goto counter at -24 */
+__xlated("0: *(u64 *)(r10 -24) =")
+/* may_goto timestamp at -16 */
+__xlated("1: *(u64 *)(r10 -16) =")
+__xlated("2: r1 = 1")
+__xlated("3: call bpf_get_smp_processor_id")
+/* may_goto expansion starts */
+__xlated("4: r11 = *(u64 *)(r10 -24)")
+__xlated("5: if r11 == 0x0 goto pc+6")
+__xlated("6: r11 -= 1")
+__xlated("7: if r11 != 0x0 goto pc+2")
+__xlated("8: r11 = -24")
+__xlated("9: call unknown")
+__xlated("10: *(u64 *)(r10 -24) = r11")
+/* may_goto expansion ends */
+__xlated("11: *(u64 *)(r10 -8) = r1")
+__xlated("12: exit")
+__success
+__naked void may_goto_interaction_arm64(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	".8byte %[may_goto];"
+	/* just touch some stack at -8 */
+	"*(u64 *)(r10 - 8) = r1;"
+	"exit;"
+	:
+	: __imm(bpf_get_smp_processor_id),
+	  __imm_insn(may_goto, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, +1 /* offset */, 0))
+	: __clobber_all);
+}
+
+__used
+__naked static void dummy_loop_callback(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 32+0")
+__xlated("2: r1 = 1")
+__xlated("3: r0 =")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("5: r0 = *(u32 *)(r0 +0)")
+/* bpf_loop params setup */
+__xlated("6: r2 =")
+__xlated("7: r3 = 0")
+__xlated("8: r4 = 0")
+__xlated("...")
+/* ... part of the inlined bpf_loop */
+__xlated("12: *(u64 *)(r10 -32) = r6")
+__xlated("13: *(u64 *)(r10 -24) = r7")
+__xlated("14: *(u64 *)(r10 -16) = r8")
+__xlated("...")
+__xlated("21: call pc+8") /* dummy_loop_callback */
+/* ... last insns of the bpf_loop_interaction1 */
+__xlated("...")
+__xlated("28: r0 = 0")
+__xlated("29: exit")
+/* dummy_loop_callback */
+__xlated("30: r0 = 0")
+__xlated("31: exit")
+__success
+__naked int bpf_loop_interaction1(void)
+{
+	asm volatile (
+	"r1 = 1;"
+	/* bpf_fastcall stack region at -16, but could be removed */
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"r2 = %[dummy_loop_callback];"
+	"r3 = 0;"
+	"r4 = 0;"
+	"call %[bpf_loop];"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_ptr(dummy_loop_callback),
+	  __imm(bpf_get_smp_processor_id),
+	  __imm(bpf_loop)
+	: __clobber_common
+	);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4) __msg("stack depth 40+0")
+/* call bpf_get_smp_processor_id */
+__xlated("2: r1 = 42")
+__xlated("3: r0 =")
+__xlated("4: r0 = &(void __percpu *)(r0)")
+__xlated("5: r0 = *(u32 *)(r0 +0)")
+/* call bpf_get_prandom_u32 */
+__xlated("6: *(u64 *)(r10 -16) = r1")
+__xlated("7: call")
+__xlated("8: r1 = *(u64 *)(r10 -16)")
+__xlated("...")
+/* ... part of the inlined bpf_loop */
+__xlated("15: *(u64 *)(r10 -40) = r6")
+__xlated("16: *(u64 *)(r10 -32) = r7")
+__xlated("17: *(u64 *)(r10 -24) = r8")
+__success
+__naked int bpf_loop_interaction2(void)
+{
+	asm volatile (
+	"r1 = 42;"
+	/* bpf_fastcall stack region at -16, cannot be removed */
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"*(u64 *)(r10 - 16) = r1;"
+	"call %[bpf_get_prandom_u32];"
+	"r1 = *(u64 *)(r10 - 16);"
+	"r2 = %[dummy_loop_callback];"
+	"r3 = 0;"
+	"r4 = 0;"
+	"call %[bpf_loop];"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_ptr(dummy_loop_callback),
+	  __imm(bpf_get_smp_processor_id),
+	  __imm(bpf_get_prandom_u32),
+	  __imm(bpf_loop)
+	: __clobber_common
+	);
+}
+
+SEC("raw_tp")
+__arch_x86_64
+__log_level(4)
+__msg("stack depth 512+0")
+/* just to print xlated version when debugging */
+__xlated("r0 = &(void __percpu *)(r0)")
+__success
+/* cumulative_stack_depth() stack usage is MAX_BPF_STACK,
+ * called subprogram uses an additional slot for bpf_fastcall spill/fill,
+ * since bpf_fastcall spill/fill could be removed the program still fits
+ * in MAX_BPF_STACK and should be accepted.
+ */
+__naked int cumulative_stack_depth(void)
+{
+	asm volatile(
+	"r1 = 42;"
+	"*(u64 *)(r10 - %[max_bpf_stack]) = r1;"
+	"call cumulative_stack_depth_subprog;"
+	"exit;"
+	:
+	: __imm_const(max_bpf_stack, MAX_BPF_STACK)
+	: __clobber_all
+	);
+}
+
+__used
+__naked static void cumulative_stack_depth_subprog(void)
+{
+	asm volatile (
+	"*(u64 *)(r10 - 8) = r1;"
+	"call %[bpf_get_smp_processor_id];"
+	"r1 = *(u64 *)(r10 - 8);"
+	"exit;"
+	:: __imm(bpf_get_smp_processor_id) : __clobber_all);
+}
+
+SEC("cgroup/getsockname_unix")
+__xlated("0: r2 = 1")
+/* bpf_cast_to_kern_ctx is replaced by a single assignment */
+__xlated("1: r0 = r1")
+__xlated("2: r0 = r2")
+__xlated("3: exit")
+__success
+__naked void kfunc_bpf_cast_to_kern_ctx(void)
+{
+	asm volatile (
+	"r2 = 1;"
+	"*(u64 *)(r10 - 32) = r2;"
+	"call %[bpf_cast_to_kern_ctx];"
+	"r2 = *(u64 *)(r10 - 32);"
+	"r0 = r2;"
+	"exit;"
+	:
+	: __imm(bpf_cast_to_kern_ctx)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__xlated("3: r3 = 1")
+/* bpf_rdonly_cast is replaced by a single assignment */
+__xlated("4: r0 = r1")
+__xlated("5: r0 = r3")
+void kfunc_bpf_rdonly_cast(void)
+{
+	asm volatile (
+	"r2 = %[btf_id];"
+	"r3 = 1;"
+	"*(u64 *)(r10 - 32) = r3;"
+	"call %[bpf_rdonly_cast];"
+	"r3 = *(u64 *)(r10 - 32);"
+	"r0 = r3;"
+	:
+	: __imm(bpf_rdonly_cast),
+	 [btf_id]"r"(bpf_core_type_id_kernel(union bpf_attr))
+	: __clobber_common);
+}
+
+/* BTF FUNC records are not generated for kfuncs referenced
+ * from inline assembly. These records are necessary for
+ * libbpf to link the program. The function below is a hack
+ * to ensure that BTF FUNC records are generated.
+ */
+void kfunc_root(void)
+{
+	bpf_cast_to_kern_ctx(0);
+	bpf_rdonly_cast(0, 0);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bpf_get_stack.c b/tools/testing/selftests/bpf/progs/verifier_bpf_get_stack.c
new file mode 100644
index 000000000000..325a2bab4a71
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bpf_get_stack.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/bpf_get_stack.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("tracepoint")
+__description("bpf_get_stack return R0 within range")
+__success
+__naked void stack_return_r0_within_range(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	r9 = %[__imm_0];				\
+	r1 = r6;					\
+	r2 = r7;					\
+	r3 = %[__imm_0];				\
+	r4 = 256;					\
+	call %[bpf_get_stack];				\
+	r1 = 0;						\
+	r8 = r0;					\
+	r8 <<= 32;					\
+	r8 s>>= 32;					\
+	if r1 s> r8 goto l0_%=;				\
+	r9 -= r8;					\
+	r2 = r7;					\
+	r2 += r8;					\
+	r1 = r9;					\
+	r1 <<= 32;					\
+	r1 s>>= 32;					\
+	r3 = r2;					\
+	r3 += r1;					\
+	r1 = r7;					\
+	r5 = %[__imm_0];				\
+	r1 += r5;					\
+	if r3 >= r1 goto l0_%=;				\
+	r1 = r6;					\
+	r3 = r9;					\
+	r4 = 0;						\
+	call %[bpf_get_stack];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_stack),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) / 2)
+	: __clobber_all);
+}
+
+SEC("iter/task")
+__description("bpf_get_task_stack return R0 range is refined")
+__success
+__naked void return_r0_range_is_refined(void)
+{
+	asm volatile ("					\
+	r6 = *(u64*)(r1 + 0);				\
+	r6 = *(u64*)(r6 + 0);		/* ctx->meta->seq */\
+	r7 = *(u64*)(r1 + 8);		/* ctx->task */\
+	r1 = %[map_array_48b] ll;	/* fixup_map_array_48b */\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	if r7 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r1 = r7;					\
+	r2 = r0;					\
+	r9 = r0;			/* keep buf for seq_write */\
+	r3 = 48;					\
+	r4 = 0;						\
+	call %[bpf_get_task_stack];			\
+	if r0 s> 0 goto l2_%=;				\
+	r0 = 0;						\
+	exit;						\
+l2_%=:	r1 = r6;					\
+	r2 = r9;					\
+	r3 = r0;					\
+	call %[bpf_seq_write];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_task_stack),
+	  __imm(bpf_map_lookup_elem),
+	  __imm(bpf_seq_write),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bpf_trap.c b/tools/testing/selftests/bpf/progs/verifier_bpf_trap.c
new file mode 100644
index 000000000000..35e2cdc00a01
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bpf_trap.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#if __clang_major__ >= 21 && 0
+SEC("socket")
+__description("__builtin_trap with simple c code")
+__failure __msg("unexpected __bpf_trap() due to uninitialized variable?")
+void bpf_builtin_trap_with_simple_c(void)
+{
+	__builtin_trap();
+}
+#endif
+
+SEC("socket")
+__description("__bpf_trap with simple c code")
+__failure __msg("unexpected __bpf_trap() due to uninitialized variable?")
+void bpf_trap_with_simple_c(void)
+{
+	__bpf_trap();
+}
+
+SEC("socket")
+__description("__bpf_trap as the second-from-last insn")
+__failure __msg("unexpected __bpf_trap() due to uninitialized variable?")
+__naked void bpf_trap_at_func_end(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"call %[__bpf_trap];"
+	"exit;"
+	:
+	: __imm(__bpf_trap)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("dead code __bpf_trap in the middle of code")
+__success
+__naked void dead_bpf_trap_in_middle(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"if r0 == 0 goto +1;"
+	"call %[__bpf_trap];"
+	"r0 = 2;"
+	"exit;"
+	:
+	: __imm(__bpf_trap)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("reachable __bpf_trap in the middle of code")
+__failure __msg("unexpected __bpf_trap() due to uninitialized variable?")
+__naked void live_bpf_trap_in_middle(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"if r0 == 1 goto +1;"
+	"call %[__bpf_trap];"
+	"r0 = 2;"
+	"exit;"
+	:
+	: __imm(__bpf_trap)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_bswap.c b/tools/testing/selftests/bpf/progs/verifier_bswap.c
new file mode 100644
index 000000000000..e61755656e8d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_bswap.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
+	defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \
+	defined(__TARGET_ARCH_loongarch)) && \
+	__clang_major__ >= 18
+
+SEC("socket")
+__description("BSWAP, 16")
+__success __success_unpriv __retval(0x23ff)
+__naked void bswap_16(void)
+{
+	asm volatile ("					\
+	r0 = 0xff23;					\
+	r0 = bswap16 r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("BSWAP, 32")
+__success __success_unpriv __retval(0x23ff0000)
+__naked void bswap_32(void)
+{
+	asm volatile ("					\
+	r0 = 0xff23;					\
+	r0 = bswap32 r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("BSWAP, 64")
+__success __success_unpriv __retval(0x34ff12ff)
+__naked void bswap_64(void)
+{
+	asm volatile ("					\
+	r0 = %[u64_val] ll;					\
+	r0 = bswap64 r0;				\
+	exit;						\
+"	:
+	: [u64_val]"i"(0xff12ff34ff56ff78ull)
+	: __clobber_all);
+}
+
+#else
+
+SEC("socket")
+__description("cpuv4 is not supported by compiler or jit, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c
new file mode 100644
index 000000000000..03942cec07e5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/btf_ctx_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("fentry/bpf_modify_return_test")
+__description("btf_ctx_access accept")
+__success __retval(0)
+__naked void btf_ctx_access_accept(void)
+{
+	asm volatile ("					\
+	r2 = *(u64 *)(r1 + 8);		/* load 2nd argument value (int pointer) */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("btf_ctx_access u32 pointer accept")
+__success __retval(0)
+__naked void ctx_access_u32_pointer_accept(void)
+{
+	asm volatile ("					\
+	r2 = *(u64 *)(r1 + 0);		/* load 1nd argument value (u32 pointer) */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("btf_ctx_access u32 pointer reject u32")
+__failure __msg("size 4 must be 8")
+__naked void ctx_access_u32_pointer_reject_32(void)
+{
+	asm volatile ("					\
+	r2 = *(u32 *)(r1 + 0);		/* load 1st argument with narrow load */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("btf_ctx_access u32 pointer reject u16")
+__failure __msg("size 2 must be 8")
+__naked void ctx_access_u32_pointer_reject_16(void)
+{
+	asm volatile ("					\
+	r2 = *(u16 *)(r1 + 0);		/* load 1st argument with narrow load */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("btf_ctx_access u32 pointer reject u8")
+__failure __msg("size 1 must be 8")
+__naked void ctx_access_u32_pointer_reject_8(void)
+{
+	asm volatile ("					\
+	r2 = *(u8 *)(r1 + 0);		/* load 1st argument with narrow load */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("fentry/bpf_fentry_test10")
+__description("btf_ctx_access const void pointer accept")
+__success __retval(0)
+__naked void ctx_access_const_void_pointer_accept(void)
+{
+	asm volatile ("					\
+	r2 = *(u64 *)(r1 + 0);		/* load 1st argument value (const void pointer) */\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_btf_unreliable_prog.c b/tools/testing/selftests/bpf/progs/verifier_btf_unreliable_prog.c
new file mode 100644
index 000000000000..36e033a2e02c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_btf_unreliable_prog.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017 Facebook
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+
+struct whatever {};
+
+SEC("kprobe")
+__success __log_level(2)
+/* context type is wrong, making it impossible to freplace this program */
+int btf_unreliable_kprobe(struct whatever *ctx)
+{
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_cfg.c b/tools/testing/selftests/bpf/progs/verifier_cfg.c
new file mode 100644
index 000000000000..c1f55e1d80a4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_cfg.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/cfg.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("unreachable")
+__failure __msg("unreachable")
+__failure_unpriv
+__naked void unreachable(void)
+{
+	asm volatile ("					\
+	exit;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unreachable2")
+__failure __msg("unreachable")
+__failure_unpriv
+__naked void unreachable2(void)
+{
+	asm volatile ("					\
+	goto l0_%=;					\
+	goto l0_%=;					\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("out of range jump")
+__failure __msg("jump out of range")
+__failure_unpriv
+__naked void out_of_range_jump(void)
+{
+	asm volatile ("					\
+	goto l0_%=;					\
+	exit;						\
+l0_%=:							\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("out of range jump2")
+__failure __msg("jump out of range")
+__failure_unpriv
+__naked void out_of_range_jump2(void)
+{
+	asm volatile ("					\
+	goto -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("loop (back-edge)")
+__failure __msg("unreachable insn 1")
+__msg_unpriv("back-edge")
+__naked void loop_back_edge(void)
+{
+	asm volatile ("					\
+l0_%=:	goto l0_%=;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("loop2 (back-edge)")
+__failure __msg("unreachable insn 4")
+__msg_unpriv("back-edge")
+__naked void loop2_back_edge(void)
+{
+	asm volatile ("					\
+l0_%=:	r1 = r0;					\
+	r2 = r0;					\
+	r3 = r0;					\
+	goto l0_%=;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("conditional loop")
+__failure __msg("infinite loop detected")
+__msg_unpriv("back-edge")
+__naked void conditional_loop(void)
+{
+	asm volatile ("					\
+	r0 = r1;					\
+l0_%=:	r2 = r0;					\
+	r3 = r0;					\
+	if r1 == 0 goto l0_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("conditional loop (2)")
+__success
+__failure_unpriv __msg_unpriv("back-edge from insn 10 to 11")
+__naked void conditional_loop2(void)
+{
+	asm volatile ("					\
+	r9 = 2 ll;					\
+	r3 = 0x20 ll;					\
+	r4 = 0x35 ll;					\
+	r8 = r4;					\
+	goto l1_%=;					\
+l0_%=:	r9 -= r3;					\
+	r9 -= r4;					\
+	r9 -= r8;					\
+l1_%=:	r8 += r4;					\
+	if r8 < 0x64 goto l0_%=;			\
+	r0 = r9;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unconditional loop after conditional jump")
+__failure __msg("infinite loop detected")
+__failure_unpriv __msg_unpriv("back-edge from insn 3 to 2")
+__naked void uncond_loop_after_cond_jmp(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 > 0 goto l1_%=;				\
+l0_%=:	r0 = 1;						\
+	goto l0_%=;					\
+l1_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+
+__naked __noinline __used
+static unsigned long never_ending_subprog()
+{
+	asm volatile ("					\
+	r0 = r1;					\
+	goto -1;					\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unconditional loop after conditional jump")
+/* infinite loop is detected *after* check_cfg() */
+__failure __msg("infinite loop detected")
+__naked void uncond_loop_in_subprog_after_cond_jmp(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r0 > 0 goto l1_%=;				\
+l0_%=:	r0 += 1;					\
+	call never_ending_subprog;			\
+l1_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_cgroup_inv_retcode.c b/tools/testing/selftests/bpf/progs/verifier_cgroup_inv_retcode.c
new file mode 100644
index 000000000000..6e0f349f8f15
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_cgroup_inv_retcode.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/cgroup_inv_retcode.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test1")
+__failure __msg("smin=0 smax=4294967295 should have been in [0, 1]")
+__naked void with_invalid_return_code_test1(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test2")
+__success
+__naked void with_invalid_return_code_test2(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + 0);				\
+	r0 &= 1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test3")
+__failure __msg("smin=0 smax=3 should have been in [0, 1]")
+__naked void with_invalid_return_code_test3(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + 0);				\
+	r0 &= 3;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test4")
+__success
+__naked void with_invalid_return_code_test4(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test5")
+__failure __msg("smin=2 smax=2 should have been in [0, 1]")
+__naked void with_invalid_return_code_test5(void)
+{
+	asm volatile ("					\
+	r0 = 2;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test6")
+__failure __msg("R0 is not a known value (ctx)")
+__naked void with_invalid_return_code_test6(void)
+{
+	asm volatile ("					\
+	r0 = r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/sock")
+__description("bpf_exit with invalid return code. test7")
+__failure __msg("R0 has unknown scalar value should have been in [0, 1]")
+__naked void with_invalid_return_code_test7(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + 0);				\
+	r2 = *(u32*)(r1 + 4);				\
+	r0 *= r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_cgroup_skb.c b/tools/testing/selftests/bpf/progs/verifier_cgroup_skb.c
new file mode 100644
index 000000000000..5ee3d349d6d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_cgroup_skb.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/cgroup_skb.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("cgroup/skb")
+__description("direct packet read test#1 for CGROUP_SKB")
+__success __failure_unpriv
+__msg_unpriv("invalid bpf_context access off=76 size=4")
+__retval(0)
+__naked void test_1_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r4 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r5 = *(u32*)(r1 + %[__sk_buff_pkt_type]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	*(u32*)(r1 + %[__sk_buff_mark]) = r6;		\
+	r7 = *(u32*)(r1 + %[__sk_buff_queue_mapping]);	\
+	r8 = *(u32*)(r1 + %[__sk_buff_protocol]);	\
+	r9 = *(u32*)(r1 + %[__sk_buff_vlan_present]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(__sk_buff_pkt_type, offsetof(struct __sk_buff, pkt_type)),
+	  __imm_const(__sk_buff_protocol, offsetof(struct __sk_buff, protocol)),
+	  __imm_const(__sk_buff_queue_mapping, offsetof(struct __sk_buff, queue_mapping)),
+	  __imm_const(__sk_buff_vlan_present, offsetof(struct __sk_buff, vlan_present))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("direct packet read test#2 for CGROUP_SKB")
+__success __success_unpriv __retval(0)
+__naked void test_2_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r4 = *(u32*)(r1 + %[__sk_buff_vlan_tci]);	\
+	r5 = *(u32*)(r1 + %[__sk_buff_vlan_proto]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_priority]);	\
+	*(u32*)(r1 + %[__sk_buff_priority]) = r6;	\
+	r7 = *(u32*)(r1 + %[__sk_buff_ingress_ifindex]);\
+	r8 = *(u32*)(r1 + %[__sk_buff_tc_index]);	\
+	r9 = *(u32*)(r1 + %[__sk_buff_hash]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_hash, offsetof(struct __sk_buff, hash)),
+	  __imm_const(__sk_buff_ingress_ifindex, offsetof(struct __sk_buff, ingress_ifindex)),
+	  __imm_const(__sk_buff_priority, offsetof(struct __sk_buff, priority)),
+	  __imm_const(__sk_buff_tc_index, offsetof(struct __sk_buff, tc_index)),
+	  __imm_const(__sk_buff_vlan_proto, offsetof(struct __sk_buff, vlan_proto)),
+	  __imm_const(__sk_buff_vlan_tci, offsetof(struct __sk_buff, vlan_tci))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("direct packet read test#3 for CGROUP_SKB")
+__success __success_unpriv __retval(0)
+__naked void test_3_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r4 = *(u32*)(r1 + %[__sk_buff_cb_0]);		\
+	r5 = *(u32*)(r1 + %[__sk_buff_cb_1]);		\
+	r6 = *(u32*)(r1 + %[__sk_buff_cb_2]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_cb_3]);		\
+	r8 = *(u32*)(r1 + %[__sk_buff_cb_4]);		\
+	r9 = *(u32*)(r1 + %[__sk_buff_napi_id]);	\
+	*(u32*)(r1 + %[__sk_buff_cb_0]) = r4;		\
+	*(u32*)(r1 + %[__sk_buff_cb_1]) = r5;		\
+	*(u32*)(r1 + %[__sk_buff_cb_2]) = r6;		\
+	*(u32*)(r1 + %[__sk_buff_cb_3]) = r7;		\
+	*(u32*)(r1 + %[__sk_buff_cb_4]) = r8;		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0])),
+	  __imm_const(__sk_buff_cb_1, offsetof(struct __sk_buff, cb[1])),
+	  __imm_const(__sk_buff_cb_2, offsetof(struct __sk_buff, cb[2])),
+	  __imm_const(__sk_buff_cb_3, offsetof(struct __sk_buff, cb[3])),
+	  __imm_const(__sk_buff_cb_4, offsetof(struct __sk_buff, cb[4])),
+	  __imm_const(__sk_buff_napi_id, offsetof(struct __sk_buff, napi_id))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("direct packet read test#4 for CGROUP_SKB")
+__success __success_unpriv __retval(0)
+__naked void test_4_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_family]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_remote_ip4]);	\
+	r4 = *(u32*)(r1 + %[__sk_buff_local_ip4]);	\
+	r5 = *(u32*)(r1 + %[__sk_buff_remote_ip6_0]);	\
+	r5 = *(u32*)(r1 + %[__sk_buff_remote_ip6_1]);	\
+	r5 = *(u32*)(r1 + %[__sk_buff_remote_ip6_2]);	\
+	r5 = *(u32*)(r1 + %[__sk_buff_remote_ip6_3]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_local_ip6_0]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_local_ip6_1]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_local_ip6_2]);	\
+	r6 = *(u32*)(r1 + %[__sk_buff_local_ip6_3]);	\
+	r7 = *(u32*)(r1 + %[__sk_buff_remote_port]);	\
+	r8 = *(u32*)(r1 + %[__sk_buff_local_port]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_family, offsetof(struct __sk_buff, family)),
+	  __imm_const(__sk_buff_local_ip4, offsetof(struct __sk_buff, local_ip4)),
+	  __imm_const(__sk_buff_local_ip6_0, offsetof(struct __sk_buff, local_ip6[0])),
+	  __imm_const(__sk_buff_local_ip6_1, offsetof(struct __sk_buff, local_ip6[1])),
+	  __imm_const(__sk_buff_local_ip6_2, offsetof(struct __sk_buff, local_ip6[2])),
+	  __imm_const(__sk_buff_local_ip6_3, offsetof(struct __sk_buff, local_ip6[3])),
+	  __imm_const(__sk_buff_local_port, offsetof(struct __sk_buff, local_port)),
+	  __imm_const(__sk_buff_remote_ip4, offsetof(struct __sk_buff, remote_ip4)),
+	  __imm_const(__sk_buff_remote_ip6_0, offsetof(struct __sk_buff, remote_ip6[0])),
+	  __imm_const(__sk_buff_remote_ip6_1, offsetof(struct __sk_buff, remote_ip6[1])),
+	  __imm_const(__sk_buff_remote_ip6_2, offsetof(struct __sk_buff, remote_ip6[2])),
+	  __imm_const(__sk_buff_remote_ip6_3, offsetof(struct __sk_buff, remote_ip6[3])),
+	  __imm_const(__sk_buff_remote_port, offsetof(struct __sk_buff, remote_port))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid access of tc_classid for CGROUP_SKB")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void tc_classid_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_tc_classid]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tc_classid, offsetof(struct __sk_buff, tc_classid))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid access of data_meta for CGROUP_SKB")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void data_meta_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_data_meta]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data_meta, offsetof(struct __sk_buff, data_meta))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid access of flow_keys for CGROUP_SKB")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void flow_keys_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_flow_keys]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_flow_keys, offsetof(struct __sk_buff, flow_keys))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid write access to napi_id for CGROUP_SKB")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void napi_id_for_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r9 = *(u32*)(r1 + %[__sk_buff_napi_id]);	\
+	*(u32*)(r1 + %[__sk_buff_napi_id]) = r9;	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_napi_id, offsetof(struct __sk_buff, napi_id))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("write tstamp from CGROUP_SKB")
+__success __failure_unpriv
+__msg_unpriv("invalid bpf_context access off=152 size=8")
+__retval(0)
+__naked void write_tstamp_from_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r1 + %[__sk_buff_tstamp]) = r0;		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tstamp, offsetof(struct __sk_buff, tstamp))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("read tstamp from CGROUP_SKB")
+__success __success_unpriv __retval(0)
+__naked void read_tstamp_from_cgroup_skb(void)
+{
+	asm volatile ("					\
+	r0 = *(u64*)(r1 + %[__sk_buff_tstamp]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tstamp, offsetof(struct __sk_buff, tstamp))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_cgroup_storage.c b/tools/testing/selftests/bpf/progs/verifier_cgroup_storage.c
new file mode 100644
index 000000000000..9a13f5c11ac7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_cgroup_storage.c
@@ -0,0 +1,308 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/cgroup_storage.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__uint(max_entries, 0);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, char[TEST_DATA_LEN]);
+} cgroup_storage SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE);
+	__uint(max_entries, 0);
+	__type(key, struct bpf_cgroup_storage_key);
+	__type(value, char[64]);
+} percpu_cgroup_storage SEC(".maps");
+
+SEC("cgroup/skb")
+__description("valid cgroup storage access")
+__success __success_unpriv __retval(0)
+__naked void valid_cgroup_storage_access(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 1")
+__failure __msg("cannot pass map_type 1 into func bpf_get_local_storage")
+__failure_unpriv
+__naked void invalid_cgroup_storage_access_1(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 2")
+__failure __msg("fd 1 is not pointing to valid bpf_map")
+__failure_unpriv
+__naked void invalid_cgroup_storage_access_2(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	.8byte %[ld_map_fd];				\
+	.8byte 0;					\
+	call %[bpf_get_local_storage];			\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_insn(ld_map_fd, BPF_RAW_INSN(BPF_LD | BPF_DW | BPF_IMM, BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 1))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 3")
+__failure __msg("invalid access to map value, value_size=64 off=256 size=4")
+__failure_unpriv
+__naked void invalid_cgroup_storage_access_3(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 256);				\
+	r1 += 1;					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 4")
+__failure __msg("invalid access to map value, value_size=64 off=-2 size=4")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void invalid_cgroup_storage_access_4(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 - 2);				\
+	r0 = r1;					\
+	r1 += 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 5")
+__failure __msg("get_local_storage() doesn't support non-zero flags")
+__failure_unpriv
+__naked void invalid_cgroup_storage_access_5(void)
+{
+	asm volatile ("					\
+	r2 = 7;						\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid cgroup storage access 6")
+__failure __msg("get_local_storage() doesn't support non-zero flags")
+__msg_unpriv("R2 leaks addr into helper function")
+__naked void invalid_cgroup_storage_access_6(void)
+{
+	asm volatile ("					\
+	r2 = r1;					\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("valid per-cpu cgroup storage access")
+__success __success_unpriv __retval(0)
+__naked void per_cpu_cgroup_storage_access(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[percpu_cgroup_storage] ll;		\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(percpu_cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 1")
+__failure __msg("cannot pass map_type 1 into func bpf_get_local_storage")
+__failure_unpriv
+__naked void cpu_cgroup_storage_access_1(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 2")
+__failure __msg("fd 1 is not pointing to valid bpf_map")
+__failure_unpriv
+__naked void cpu_cgroup_storage_access_2(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	.8byte %[ld_map_fd];				\
+	.8byte 0;					\
+	call %[bpf_get_local_storage];			\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_insn(ld_map_fd, BPF_RAW_INSN(BPF_LD | BPF_DW | BPF_IMM, BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 1))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 3")
+__failure __msg("invalid access to map value, value_size=64 off=256 size=4")
+__failure_unpriv
+__naked void cpu_cgroup_storage_access_3(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[percpu_cgroup_storage] ll;		\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 256);				\
+	r1 += 1;					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(percpu_cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 4")
+__failure __msg("invalid access to map value, value_size=64 off=-2 size=4")
+__failure_unpriv
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void cpu_cgroup_storage_access_4(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	r1 = %[cgroup_storage] ll;			\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 - 2);				\
+	r0 = r1;					\
+	r1 += 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 5")
+__failure __msg("get_local_storage() doesn't support non-zero flags")
+__failure_unpriv
+__naked void cpu_cgroup_storage_access_5(void)
+{
+	asm volatile ("					\
+	r2 = 7;						\
+	r1 = %[percpu_cgroup_storage] ll;		\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(percpu_cgroup_storage)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("invalid per-cpu cgroup storage access 6")
+__failure __msg("get_local_storage() doesn't support non-zero flags")
+__msg_unpriv("R2 leaks addr into helper function")
+__naked void cpu_cgroup_storage_access_6(void)
+{
+	asm volatile ("					\
+	r2 = r1;					\
+	r1 = %[percpu_cgroup_storage] ll;		\
+	call %[bpf_get_local_storage];			\
+	r1 = *(u32*)(r0 + 0);				\
+	r0 = r1;					\
+	r0 &= 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_local_storage),
+	  __imm_addr(percpu_cgroup_storage)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_const.c b/tools/testing/selftests/bpf/progs/verifier_const.c
new file mode 100644
index 000000000000..e118dbb768bf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_const.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Isovalent */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+const volatile long foo = 42;
+long bar;
+long bart = 96;
+
+SEC("tc/ingress")
+__description("rodata/strtol: write rejected")
+__failure __msg("write into map forbidden")
+int tcx1(struct __sk_buff *skb)
+{
+	char buff[] = { '8', '4', '\0' };
+	bpf_strtol(buff, sizeof(buff), 0, (long *)&foo);
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+__description("bss/strtol: write accepted")
+__success
+int tcx2(struct __sk_buff *skb)
+{
+	char buff[] = { '8', '4', '\0' };
+	bpf_strtol(buff, sizeof(buff), 0, &bar);
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+__description("data/strtol: write accepted")
+__success
+int tcx3(struct __sk_buff *skb)
+{
+	char buff[] = { '8', '4', '\0' };
+	bpf_strtol(buff, sizeof(buff), 0, &bart);
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+__description("rodata/mtu: write rejected")
+__failure __msg("write into map forbidden")
+int tcx4(struct __sk_buff *skb)
+{
+	bpf_check_mtu(skb, skb->ifindex, (__u32 *)&foo, 0, 0);
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+__description("bss/mtu: write accepted")
+__success
+int tcx5(struct __sk_buff *skb)
+{
+	bpf_check_mtu(skb, skb->ifindex, (__u32 *)&bar, 0, 0);
+	return TCX_PASS;
+}
+
+SEC("tc/ingress")
+__description("data/mtu: write accepted")
+__success
+int tcx6(struct __sk_buff *skb)
+{
+	bpf_check_mtu(skb, skb->ifindex, (__u32 *)&bart, 0, 0);
+	return TCX_PASS;
+}
+
+static inline void write_fixed(volatile void *p, __u32 val)
+{
+	*(volatile __u32 *)p = val;
+}
+
+static inline void write_dyn(void *p, void *val, int len)
+{
+	bpf_copy_from_user(p, len, val);
+}
+
+SEC("tc/ingress")
+__description("rodata/mark: write with unknown reg rejected")
+__failure __msg("write into map forbidden")
+int tcx7(struct __sk_buff *skb)
+{
+	write_fixed((void *)&foo, skb->mark);
+	return TCX_PASS;
+}
+
+SEC("lsm.s/bprm_committed_creds")
+__description("rodata/mark: write with unknown reg rejected")
+__failure __msg("write into map forbidden")
+int BPF_PROG(bprm, struct linux_binprm *bprm)
+{
+	write_dyn((void *)&foo, &bart, bpf_get_prandom_u32() & 3);
+	return 0;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_const_or.c b/tools/testing/selftests/bpf/progs/verifier_const_or.c
new file mode 100644
index 000000000000..68c568c3c3a0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_const_or.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/const_or.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("tracepoint")
+__description("constant register |= constant should keep constant type")
+__success
+__naked void constant_should_keep_constant_type(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -48;					\
+	r2 = 34;					\
+	r2 |= 13;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("constant register |= constant should not bypass stack boundary checks")
+__failure __msg("invalid write to stack R1 off=-48 size=58")
+__naked void not_bypass_stack_boundary_checks_1(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -48;					\
+	r2 = 34;					\
+	r2 |= 24;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("constant register |= constant register should keep constant type")
+__success
+__naked void register_should_keep_constant_type(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -48;					\
+	r2 = 34;					\
+	r4 = 13;					\
+	r2 |= r4;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("constant register |= constant register should not bypass stack boundary checks")
+__failure __msg("invalid write to stack R1 off=-48 size=58")
+__naked void not_bypass_stack_boundary_checks_2(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -48;					\
+	r2 = 34;					\
+	r4 = 24;					\
+	r2 |= r4;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_ctx.c b/tools/testing/selftests/bpf/progs/verifier_ctx.c
new file mode 100644
index 000000000000..5ebf7d9bcc55
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ctx.c
@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/ctx.c */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("tc")
+__description("context stores via BPF_ATOMIC")
+__failure __msg("BPF_ATOMIC stores into R1 ctx is not allowed")
+__naked void context_stores_via_bpf_atomic(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	lock *(u32 *)(r1 + %[__sk_buff_mark]) += w0;	\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("arithmetic ops make PTR_TO_CTX unusable")
+__failure __msg("dereference of modified ctx ptr")
+__naked void make_ptr_to_ctx_unusable(void)
+{
+	asm volatile ("					\
+	r1 += %[__imm_0];				\
+	r0 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	exit;						\
+"	:
+	: __imm_const(__imm_0,
+		      offsetof(struct __sk_buff, data) - offsetof(struct __sk_buff, mark)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("pass unmodified ctx pointer to helper")
+__success __retval(0)
+__naked void unmodified_ctx_pointer_to_helper(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	call %[bpf_csum_update];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_update)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("pass modified ctx pointer to helper, 1")
+__failure __msg("negative offset ctx ptr R1 off=-612 disallowed")
+__naked void ctx_pointer_to_helper_1(void)
+{
+	asm volatile ("					\
+	r1 += -612;					\
+	r2 = 0;						\
+	call %[bpf_csum_update];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_update)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("pass modified ctx pointer to helper, 2")
+__failure __msg("negative offset ctx ptr R1 off=-612 disallowed")
+__failure_unpriv __msg_unpriv("negative offset ctx ptr R1 off=-612 disallowed")
+__naked void ctx_pointer_to_helper_2(void)
+{
+	asm volatile ("					\
+	r1 += -612;					\
+	call %[bpf_get_socket_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_socket_cookie)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("pass modified ctx pointer to helper, 3")
+__failure __msg("variable ctx access var_off=(0x0; 0x4)")
+__naked void ctx_pointer_to_helper_3(void)
+{
+	asm volatile ("					\
+	r3 = *(u32*)(r1 + 0);				\
+	r3 &= 4;					\
+	r1 += r3;					\
+	r2 = 0;						\
+	call %[bpf_csum_update];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_update)
+	: __clobber_all);
+}
+
+SEC("cgroup/sendmsg6")
+__description("pass ctx or null check, 1: ctx")
+__success
+__naked void or_null_check_1_ctx(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/sendmsg6")
+__description("pass ctx or null check, 2: null")
+__success
+__naked void or_null_check_2_null(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/sendmsg6")
+__description("pass ctx or null check, 3: 1")
+__failure __msg("R1 type=scalar expected=ctx")
+__naked void or_null_check_3_1(void)
+{
+	asm volatile ("					\
+	r1 = 1;						\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/sendmsg6")
+__description("pass ctx or null check, 4: ctx - const")
+__failure __msg("negative offset ctx ptr R1 off=-612 disallowed")
+__naked void null_check_4_ctx_const(void)
+{
+	asm volatile ("					\
+	r1 += -612;					\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/connect4")
+__description("pass ctx or null check, 5: null (connect)")
+__success
+__naked void null_check_5_null_connect(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("pass ctx or null check, 6: null (bind)")
+__success
+__naked void null_check_6_null_bind(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call %[bpf_get_netns_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_netns_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("pass ctx or null check, 7: ctx (bind)")
+__success
+__naked void null_check_7_ctx_bind(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_socket_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_socket_cookie)
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("pass ctx or null check, 8: null (bind)")
+__failure __msg("R1 type=scalar expected=ctx")
+__naked void null_check_8_null_bind(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call %[bpf_get_socket_cookie];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_socket_cookie)
+	: __clobber_all);
+}
+
+#define narrow_load(type, ctx, field)					\
+	SEC(type)							\
+	__description("narrow load on field " #field " of " #ctx)	\
+	__failure __msg("invalid bpf_context access")			\
+	__naked void invalid_narrow_load##ctx##field(void)		\
+	{								\
+		asm volatile ("						\
+		r1 = *(u32 *)(r1 + %[off]);				\
+		r0 = 0;							\
+		exit;"							\
+		:							\
+		: __imm_const(off, offsetof(struct ctx, field) + 4)	\
+		: __clobber_all);					\
+	}
+
+narrow_load("cgroup/getsockopt", bpf_sockopt, sk);
+narrow_load("cgroup/getsockopt", bpf_sockopt, optval);
+narrow_load("cgroup/getsockopt", bpf_sockopt, optval_end);
+narrow_load("tc", __sk_buff, sk);
+narrow_load("cgroup/bind4", bpf_sock_addr, sk);
+narrow_load("sockops", bpf_sock_ops, sk);
+narrow_load("sockops", bpf_sock_ops, skb_data);
+narrow_load("sockops", bpf_sock_ops, skb_data_end);
+narrow_load("sockops", bpf_sock_ops, skb_hwtstamp);
+
+#define unaligned_access(type, ctx, field)					\
+	SEC(type)								\
+	__description("unaligned access on field " #field " of " #ctx)		\
+	__failure __msg("invalid bpf_context access")				\
+	__naked void unaligned_ctx_access_##ctx##field(void)			\
+	{									\
+		asm volatile ("							\
+		r1 = *(u%[size] *)(r1 + %[off]);				\
+		r0 = 0;								\
+		exit;"								\
+		:								\
+		: __imm_const(size, sizeof_field(struct ctx, field) * 8),	\
+		  __imm_const(off, offsetof(struct ctx, field) + 1)		\
+		: __clobber_all);						\
+	}
+
+unaligned_access("flow_dissector", __sk_buff, data);
+unaligned_access("netfilter", bpf_nf_ctx, skb);
+
+#define padding_access(type, ctx, prev_field, sz)			\
+	SEC(type)							\
+	__description("access on " #ctx " padding after " #prev_field)	\
+	__naked void padding_ctx_access_##ctx(void)			\
+	{								\
+		asm volatile ("						\
+		r1 = *(u%[size] *)(r1 + %[off]);			\
+		r0 = 0;							\
+		exit;"							\
+		:							\
+		: __imm_const(size, sz * 8),				\
+		  __imm_const(off, offsetofend(struct ctx, prev_field))	\
+		: __clobber_all);					\
+	}
+
+__failure __msg("invalid bpf_context access")
+padding_access("cgroup/bind4", bpf_sock_addr, msg_src_ip6[3], 4);
+
+__success
+padding_access("sk_lookup", bpf_sk_lookup, remote_port, 2);
+
+__failure __msg("invalid bpf_context access")
+padding_access("tc", __sk_buff, tstamp_type, 2);
+
+__failure __msg("invalid bpf_context access")
+padding_access("cgroup/post_bind4", bpf_sock, dst_port, 2);
+
+__failure __msg("invalid bpf_context access")
+padding_access("sk_reuseport", sk_reuseport_md, hash, 4);
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_ctx_sk_msg.c b/tools/testing/selftests/bpf/progs/verifier_ctx_sk_msg.c
new file mode 100644
index 000000000000..65edc89799f9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ctx_sk_msg.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/ctx_sk_msg.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("sk_msg")
+__description("valid access family in SK_MSG")
+__success
+__naked void access_family_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_family]);		\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_family, offsetof(struct sk_msg_md, family))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("valid access remote_ip4 in SK_MSG")
+__success
+__naked void remote_ip4_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_ip4]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_remote_ip4, offsetof(struct sk_msg_md, remote_ip4))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("valid access local_ip4 in SK_MSG")
+__success
+__naked void local_ip4_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_ip4]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_local_ip4, offsetof(struct sk_msg_md, local_ip4))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("valid access remote_port in SK_MSG")
+__success
+__naked void remote_port_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_port]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_remote_port, offsetof(struct sk_msg_md, remote_port))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("valid access local_port in SK_MSG")
+__success
+__naked void local_port_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_port]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_local_port, offsetof(struct sk_msg_md, local_port))
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("valid access remote_ip6 in SK_MSG")
+__success
+__naked void remote_ip6_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_ip6_0]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_ip6_1]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_ip6_2]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_remote_ip6_3]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_remote_ip6_0, offsetof(struct sk_msg_md, remote_ip6[0])),
+	  __imm_const(sk_msg_md_remote_ip6_1, offsetof(struct sk_msg_md, remote_ip6[1])),
+	  __imm_const(sk_msg_md_remote_ip6_2, offsetof(struct sk_msg_md, remote_ip6[2])),
+	  __imm_const(sk_msg_md_remote_ip6_3, offsetof(struct sk_msg_md, remote_ip6[3]))
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("valid access local_ip6 in SK_MSG")
+__success
+__naked void local_ip6_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_ip6_0]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_ip6_1]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_ip6_2]);	\
+	r0 = *(u32*)(r1 + %[sk_msg_md_local_ip6_3]);	\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_local_ip6_0, offsetof(struct sk_msg_md, local_ip6[0])),
+	  __imm_const(sk_msg_md_local_ip6_1, offsetof(struct sk_msg_md, local_ip6[1])),
+	  __imm_const(sk_msg_md_local_ip6_2, offsetof(struct sk_msg_md, local_ip6[2])),
+	  __imm_const(sk_msg_md_local_ip6_3, offsetof(struct sk_msg_md, local_ip6[3]))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("valid access size in SK_MSG")
+__success
+__naked void access_size_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[sk_msg_md_size]);		\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_size, offsetof(struct sk_msg_md, size))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("invalid 64B read of size in SK_MSG")
+__failure __msg("invalid bpf_context access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void of_size_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + %[sk_msg_md_size]);		\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_size, offsetof(struct sk_msg_md, size))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("invalid read past end of SK_MSG")
+__failure __msg("invalid bpf_context access")
+__naked void past_end_of_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__imm_0]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, offsetof(struct sk_msg_md, size) + 4)
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("invalid read offset in SK_MSG")
+__failure __msg("invalid bpf_context access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void read_offset_in_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__imm_0]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, offsetof(struct sk_msg_md, family) + 1)
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("direct packet read for SK_MSG")
+__success
+__naked void packet_read_for_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + %[sk_msg_md_data]);		\
+	r3 = *(u64*)(r1 + %[sk_msg_md_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_data, offsetof(struct sk_msg_md, data)),
+	  __imm_const(sk_msg_md_data_end, offsetof(struct sk_msg_md, data_end))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("direct packet write for SK_MSG")
+__success
+__naked void packet_write_for_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + %[sk_msg_md_data]);		\
+	r3 = *(u64*)(r1 + %[sk_msg_md_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_data, offsetof(struct sk_msg_md, data)),
+	  __imm_const(sk_msg_md_data_end, offsetof(struct sk_msg_md, data_end))
+	: __clobber_all);
+}
+
+SEC("sk_msg")
+__description("overlapping checks for direct packet access SK_MSG")
+__success
+__naked void direct_packet_access_sk_msg(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + %[sk_msg_md_data]);		\
+	r3 = *(u64*)(r1 + %[sk_msg_md_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u16*)(r2 + 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(sk_msg_md_data, offsetof(struct sk_msg_md, data)),
+	  __imm_const(sk_msg_md_data_end, offsetof(struct sk_msg_md, data_end))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_d_path.c b/tools/testing/selftests/bpf/progs/verifier_d_path.c
new file mode 100644
index 000000000000..87e51a215558
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_d_path.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/d_path.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("fentry/dentry_open")
+__description("d_path accept")
+__success __retval(0)
+__naked void d_path_accept(void)
+{
+	asm volatile ("					\
+	r1 = *(u64 *)(r1 + 0);				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r6 = 0;						\
+	*(u64*)(r2 + 0) = r6;				\
+	r3 = 8 ll;					\
+	call %[bpf_d_path];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_d_path)
+	: __clobber_all);
+}
+
+SEC("fentry/d_path")
+__description("d_path reject")
+__failure __msg("helper call is not allowed in probe")
+__naked void d_path_reject(void)
+{
+	asm volatile ("					\
+	r1 = *(u64 *)(r1 + 0);				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r6 = 0;						\
+	*(u64*)(r2 + 0) = r6;				\
+	r3 = 8 ll;					\
+	call %[bpf_d_path];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_d_path)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_direct_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_direct_packet_access.c
new file mode 100644
index 000000000000..911caa8fd1b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_direct_packet_access.c
@@ -0,0 +1,862 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/direct_packet_access.c */
+
+#include <linux/if_ether.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("tc")
+__description("pkt_end - pkt_start is allowed")
+__success __retval(TEST_DATA_LEN)
+__naked void end_pkt_start_is_allowed(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r0 -= r2;					\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test1")
+__success __retval(0)
+__naked void direct_packet_access_test1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test2")
+__success __retval(0)
+__naked void direct_packet_access_test2(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	r4 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r3 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r5 = r3;					\
+	r5 += 14;					\
+	if r5 > r4 goto l0_%=;				\
+	r0 = *(u8*)(r3 + 7);				\
+	r4 = *(u8*)(r3 + 12);				\
+	r4 *= 14;					\
+	r3 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 += r4;					\
+	r2 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r2 <<= 49;					\
+	r2 >>= 49;					\
+	r3 += r2;					\
+	r2 = r3;					\
+	r2 += 8;					\
+	r1 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	if r2 > r1 goto l1_%=;				\
+	r1 = *(u8*)(r3 + 4);				\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("direct packet access: test3")
+__failure __msg("invalid bpf_context access off=76")
+__failure_unpriv
+__naked void direct_packet_access_test3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test4 (write)")
+__success __retval(0)
+__naked void direct_packet_access_test4_write(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test5 (pkt_end >= reg, good access)")
+__success __retval(0)
+__naked void pkt_end_reg_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 >= r0 goto l0_%=;				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = *(u8*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test6 (pkt_end >= reg, bad access)")
+__failure __msg("invalid access to packet")
+__naked void pkt_end_reg_bad_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 >= r0 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test7 (pkt_end >= reg, both accesses)")
+__failure __msg("invalid access to packet")
+__naked void pkt_end_reg_both_accesses(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 >= r0 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = *(u8*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test8 (double test, variant 1)")
+__success __retval(0)
+__naked void test8_double_test_variant_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 >= r0 goto l0_%=;				\
+	if r0 > r3 goto l1_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l1_%=:	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = *(u8*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test9 (double test, variant 2)")
+__success __retval(0)
+__naked void test9_double_test_variant_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 >= r0 goto l0_%=;				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	if r0 > r3 goto l1_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l1_%=:	r0 = *(u8*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test10 (write invalid)")
+__failure __msg("invalid access to packet")
+__naked void packet_access_test10_write_invalid(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	*(u8*)(r2 + 0) = r2;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test11 (shift, good access)")
+__success __retval(1)
+__naked void access_test11_shift_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 22;					\
+	if r0 > r3 goto l0_%=;				\
+	r3 = 144;					\
+	r5 = r3;					\
+	r5 += 23;					\
+	r5 >>= 3;					\
+	r6 = r2;					\
+	r6 += r5;					\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test12 (and, good access)")
+__success __retval(1)
+__naked void access_test12_and_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 22;					\
+	if r0 > r3 goto l0_%=;				\
+	r3 = 144;					\
+	r5 = r3;					\
+	r5 += 23;					\
+	r5 &= 15;					\
+	r6 = r2;					\
+	r6 += r5;					\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test13 (branches, good access)")
+__success __retval(1)
+__naked void access_test13_branches_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 22;					\
+	if r0 > r3 goto l0_%=;				\
+	r3 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	r4 = 1;						\
+	if r3 > r4 goto l1_%=;				\
+	r3 = 14;					\
+	goto l2_%=;					\
+l1_%=:	r3 = 24;					\
+l2_%=:	r5 = r3;					\
+	r5 += 23;					\
+	r5 &= 15;					\
+	r6 = r2;					\
+	r6 += r5;					\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)")
+__success __retval(1)
+__naked void _0_const_imm_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 22;					\
+	if r0 > r3 goto l0_%=;				\
+	r5 = 12;					\
+	r5 >>= 4;					\
+	r6 = r2;					\
+	r6 += r5;					\
+	r0 = *(u8*)(r6 + 0);				\
+	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test15 (spill with xadd)")
+__failure __msg("R2 invalid mem access 'scalar'")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void access_test15_spill_with_xadd(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r5 = 4096;					\
+	r4 = r10;					\
+	r4 += -8;					\
+	*(u64*)(r4 + 0) = r2;				\
+	lock *(u64 *)(r4 + 0) += r5;			\
+	r2 = *(u64*)(r4 + 0);				\
+	*(u32*)(r2 + 0) = r5;				\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test16 (arith on data_end)")
+__failure __msg("R3 pointer arithmetic on pkt_end")
+__naked void test16_arith_on_data_end(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	r3 += 16;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test17 (pruning, alignment)")
+__failure __msg("misaligned packet access off 2+0+15+-4 size 4")
+__flag(BPF_F_STRICT_ALIGNMENT)
+__naked void packet_access_test17_pruning_alignment(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r7 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	r0 = r2;					\
+	r0 += 14;					\
+	if r7 > 1 goto l0_%=;				\
+l2_%=:	if r0 > r3 goto l1_%=;				\
+	*(u32*)(r0 - 4) = r0;				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+l0_%=:	r0 += 1;					\
+	goto l2_%=;					\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test18 (imm += pkt_ptr, 1)")
+__success __retval(0)
+__naked void test18_imm_pkt_ptr_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = 8;						\
+	r0 += r2;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test19 (imm += pkt_ptr, 2)")
+__success __retval(0)
+__naked void test19_imm_pkt_ptr_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r4 = 4;						\
+	r4 += r2;					\
+	*(u8*)(r4 + 0) = r4;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test20 (x += pkt_ptr, 1)")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void test20_x_pkt_ptr_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = 0xffffffff;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r0 = *(u64*)(r10 - 8);				\
+	r0 &= 0x7fff;					\
+	r4 = r0;					\
+	r4 += r2;					\
+	r5 = r4;					\
+	r4 += %[__imm_0];				\
+	if r4 > r3 goto l0_%=;				\
+	*(u64*)(r5 + 0) = r4;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0x7fff - 1),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test21 (x += pkt_ptr, 2)")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void test21_x_pkt_ptr_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r4 = 0xffffffff;				\
+	*(u64*)(r10 - 8) = r4;				\
+	r4 = *(u64*)(r10 - 8);				\
+	r4 &= 0x7fff;					\
+	r4 += r2;					\
+	r5 = r4;					\
+	r4 += %[__imm_0];				\
+	if r4 > r3 goto l0_%=;				\
+	*(u64*)(r5 + 0) = r4;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0x7fff - 1),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test22 (x += pkt_ptr, 3)")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void test22_x_pkt_ptr_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	*(u64*)(r10 - 8) = r2;				\
+	*(u64*)(r10 - 16) = r3;				\
+	r3 = *(u64*)(r10 - 16);				\
+	if r0 > r3 goto l0_%=;				\
+	r2 = *(u64*)(r10 - 8);				\
+	r4 = 0xffffffff;				\
+	lock *(u64 *)(r10 - 8) += r4;			\
+	r4 = *(u64*)(r10 - 8);				\
+	r4 >>= 49;					\
+	r4 += r2;					\
+	r0 = r4;					\
+	r0 += 2;					\
+	if r0 > r3 goto l0_%=;				\
+	r2 = 1;						\
+	*(u16*)(r4 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test23 (x += pkt_ptr, 4)")
+__failure __msg("invalid access to packet, off=0 size=8, R5(id=3,off=0,r=0)")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void test23_x_pkt_ptr_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	*(u64*)(r10 - 8) = r0;				\
+	r0 = *(u64*)(r10 - 8);				\
+	r0 &= 0xffff;					\
+	r4 = r0;					\
+	r0 = 31;					\
+	r0 += r4;					\
+	r0 += r2;					\
+	r5 = r0;					\
+	r0 += %[__imm_0];				\
+	if r0 > r3 goto l0_%=;				\
+	*(u64*)(r5 + 0) = r0;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffff - 1),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test24 (x += pkt_ptr, 5)")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void test24_x_pkt_ptr_5(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = 0xffffffff;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r0 = *(u64*)(r10 - 8);				\
+	r0 &= 0xff;					\
+	r4 = r0;					\
+	r0 = 64;					\
+	r0 += r4;					\
+	r0 += r2;					\
+	r5 = r0;					\
+	r0 += %[__imm_0];				\
+	if r0 > r3 goto l0_%=;				\
+	*(u64*)(r5 + 0) = r0;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0x7fff - 1),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test25 (marking on <, good access)")
+__success __retval(0)
+__naked void test25_marking_on_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 < r3 goto l0_%=;				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+l0_%=:	r0 = *(u8*)(r2 + 0);				\
+	goto l1_%=;					\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test26 (marking on <, bad access)")
+__failure __msg("invalid access to packet")
+__naked void test26_marking_on_bad_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 < r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+l0_%=:	goto l1_%=;					\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test27 (marking on <=, good access)")
+__success __retval(1)
+__naked void test27_marking_on_good_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 <= r0 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test28 (marking on <=, bad access)")
+__failure __msg("invalid access to packet")
+__naked void test28_marking_on_bad_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r3 <= r0 goto l0_%=;				\
+l1_%=:	r0 = 1;						\
+	exit;						\
+l0_%=:	r0 = *(u8*)(r2 + 0);				\
+	goto l1_%=;					\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test29 (reg > pkt_end in subprog)")
+__success __retval(0)
+__naked void reg_pkt_end_in_subprog(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r2 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r3 = r6;					\
+	r3 += 8;					\
+	call reg_pkt_end_in_subprog__1;			\
+	if r0 == 0 goto l0_%=;				\
+	r0 = *(u8*)(r6 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void reg_pkt_end_in_subprog__1(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	if r3 > r2 goto l0_%=;				\
+	r0 = 1;						\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("direct packet access: test30 (check_id() in regsafe(), bad access)")
+__failure __msg("invalid access to packet, off=0 size=1, R2")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void id_in_regsafe_bad_access(void)
+{
+	asm volatile ("					\
+	/* r9 = ctx */					\
+	r9 = r1;					\
+	/* r7 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r7 = r0;					\
+	/* r6 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r6 = r0;					\
+	/* r2 = ctx->data				\
+	 * r3 = ctx->data				\
+	 * r4 = ctx->data_end				\
+	 */						\
+	r2 = *(u32*)(r9 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r9 + %[__sk_buff_data]);		\
+	r4 = *(u32*)(r9 + %[__sk_buff_data_end]);	\
+	/* if r6 > 100 goto exit			\
+	 * if r7 > 100 goto exit			\
+	 */						\
+	if r6 > 100 goto l0_%=;				\
+	if r7 > 100 goto l0_%=;				\
+	/* r2 += r6              ; this forces assignment of ID to r2\
+	 * r2 += 1               ; get some fixed off for r2\
+	 * r3 += r7              ; this forces assignment of ID to r3\
+	 * r3 += 1               ; get some fixed off for r3\
+	 */						\
+	r2 += r6;					\
+	r2 += 1;					\
+	r3 += r7;					\
+	r3 += 1;					\
+	/* if r6 > r7 goto +1    ; no new information about the state is derived from\
+	 *                       ; this check, thus produced verifier states differ\
+	 *                       ; only in 'insn_idx'	\
+	 * r2 = r3               ; optionally share ID between r2 and r3\
+	 */						\
+	if r6 != r7 goto l1_%=;				\
+	r2 = r3;					\
+l1_%=:	/* if r3 > ctx->data_end goto exit */		\
+	if r3 > r4 goto l0_%=;				\
+	/* r5 = *(u8 *) (r2 - 1) ; access packet memory using r2,\
+	 *                       ; this is not always safe\
+	 */						\
+	r5 = *(u8*)(r2 - 1);				\
+l0_%=:	/* exit(0) */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+#define access_test_non_linear(name, type, desc, retval, linear_sz, off)			\
+	SEC(type)										\
+	__description("direct packet access: " #name " (non-linear, " type ", " desc ")")	\
+	__success __retval(retval)								\
+	__linear_size(linear_sz)								\
+	__naked void access_non_linear_##name(void)						\
+	{											\
+		asm volatile ("									\
+		r2 = *(u32*)(r1 + %[skb_data]);							\
+		r3 = *(u32*)(r1 + %[skb_data_end]);						\
+		r0 = r2;									\
+		r0 += %[offset];								\
+		if r0 > r3 goto l0_%=;								\
+		r0 = *(u8*)(r0 - 1);								\
+		r0 = 0;										\
+		exit;										\
+	l0_%=:	r0 = 1;										\
+		exit;										\
+	"	:										\
+		: __imm_const(skb_data, offsetof(struct __sk_buff, data)),			\
+		  __imm_const(skb_data_end, offsetof(struct __sk_buff, data_end)),		\
+		  __imm_const(offset, off)							\
+		: __clobber_all);								\
+	}
+
+access_test_non_linear(test31, "tc", "too short eth", 1, ETH_HLEN, 22);
+access_test_non_linear(test32, "tc", "too short 1", 1, 1, 22);
+access_test_non_linear(test33, "tc", "long enough", 0, 22, 22);
+access_test_non_linear(test34, "cgroup_skb/ingress", "too short eth", 1, ETH_HLEN, 8);
+access_test_non_linear(test35, "cgroup_skb/ingress", "too short 1", 1, 1, 8);
+access_test_non_linear(test36, "cgroup_skb/ingress", "long enough", 0, 22, 8);
+
+SEC("tc")
+__description("direct packet access: test37 (non-linear, linearized)")
+__success __retval(0)
+__linear_size(ETH_HLEN)
+__naked void access_non_linear_linearized(void)
+{
+	asm volatile ("				\
+	r6 = r1;				\
+	r2 = 22;				\
+	call %[bpf_skb_pull_data];		\
+	r2 = *(u32*)(r6 + %[skb_data]);		\
+	r3 = *(u32*)(r6 + %[skb_data_end]);	\
+	r0 = r2;				\
+	r0 += 22;				\
+	if r0 > r3 goto l0_%=;			\
+	r0 = *(u8*)(r0 - 1);			\
+	exit;					\
+l0_%=:	r0 = 1;					\
+	exit;					\
+"	:
+	: __imm(bpf_skb_pull_data),
+	  __imm_const(skb_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(skb_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_direct_stack_access_wraparound.c b/tools/testing/selftests/bpf/progs/verifier_direct_stack_access_wraparound.c
new file mode 100644
index 000000000000..c538c6893552
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_direct_stack_access_wraparound.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/direct_stack_access_wraparound.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("direct stack access with 32-bit wraparound. test1")
+__failure __msg("fp pointer and 2147483647")
+__failure_unpriv
+__naked void with_32_bit_wraparound_test1(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += 0x7fffffff;				\
+	r1 += 0x7fffffff;				\
+	w0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("direct stack access with 32-bit wraparound. test2")
+__failure __msg("fp pointer and 1073741823")
+__failure_unpriv
+__naked void with_32_bit_wraparound_test2(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += 0x3fffffff;				\
+	r1 += 0x3fffffff;				\
+	w0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("direct stack access with 32-bit wraparound. test3")
+__failure __msg("fp pointer offset 1073741822")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void with_32_bit_wraparound_test3(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += 0x1fffffff;				\
+	r1 += 0x1fffffff;				\
+	w0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_div0.c b/tools/testing/selftests/bpf/progs/verifier_div0.c
new file mode 100644
index 000000000000..cca5ea18fc28
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_div0.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/div0.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("DIV32 by 0, zero check 1")
+__success __success_unpriv __retval(42)
+__naked void by_0_zero_check_1_1(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = 1;						\
+	w2 /= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("DIV32 by 0, zero check 2")
+__success __success_unpriv __retval(42)
+__naked void by_0_zero_check_2_1(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	r1 = 0xffffffff00000000LL ll;			\
+	w2 = 1;						\
+	w2 /= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("DIV64 by 0, zero check")
+__success __success_unpriv __retval(42)
+__naked void div64_by_0_zero_check(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = 1;						\
+	r2 /= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOD32 by 0, zero check 1")
+__success __success_unpriv __retval(42)
+__naked void by_0_zero_check_1_2(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = 1;						\
+	w2 %%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOD32 by 0, zero check 2")
+__success __success_unpriv __retval(42)
+__naked void by_0_zero_check_2_2(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	r1 = 0xffffffff00000000LL ll;			\
+	w2 = 1;						\
+	w2 %%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOD64 by 0, zero check")
+__success __success_unpriv __retval(42)
+__naked void mod64_by_0_zero_check(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = 1;						\
+	r2 %%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV32 by 0, zero check ok, cls")
+__success __retval(8)
+__naked void _0_zero_check_ok_cls_1(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 2;						\
+	w2 = 16;					\
+	w2 /= w1;					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV32 by 0, zero check 1, cls")
+__success __retval(0)
+__naked void _0_zero_check_1_cls_1(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w0 = 1;						\
+	w0 /= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV32 by 0, zero check 2, cls")
+__success __retval(0)
+__naked void _0_zero_check_2_cls_1(void)
+{
+	asm volatile ("					\
+	r1 = 0xffffffff00000000LL ll;			\
+	w0 = 1;						\
+	w0 /= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV64 by 0, zero check, cls")
+__success __retval(0)
+__naked void by_0_zero_check_cls(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w0 = 1;						\
+	r0 /= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD32 by 0, zero check ok, cls")
+__success __retval(2)
+__naked void _0_zero_check_ok_cls_2(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 3;						\
+	w2 = 5;						\
+	w2 %%= w1;					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD32 by 0, zero check 1, cls")
+__success __retval(1)
+__naked void _0_zero_check_1_cls_2(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w0 = 1;						\
+	w0 %%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD32 by 0, zero check 2, cls")
+__success __retval(1)
+__naked void _0_zero_check_2_cls_2(void)
+{
+	asm volatile ("					\
+	r1 = 0xffffffff00000000LL ll;			\
+	w0 = 1;						\
+	w0 %%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD64 by 0, zero check 1, cls")
+__success __retval(2)
+__naked void _0_zero_check_1_cls_3(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w0 = 2;						\
+	r0 %%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD64 by 0, zero check 2, cls")
+__success __retval(-1)
+__naked void _0_zero_check_2_cls_3(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w0 = -1;					\
+	r0 %%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_div_overflow.c b/tools/testing/selftests/bpf/progs/verifier_div_overflow.c
new file mode 100644
index 000000000000..34e0c012ee76
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_div_overflow.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/div_overflow.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <limits.h>
+#include "bpf_misc.h"
+
+/* Just make sure that JITs used udiv/umod as otherwise we get
+ * an exception from INT_MIN/-1 overflow similarly as with div
+ * by zero.
+ */
+
+SEC("tc")
+__description("DIV32 overflow, check 1")
+__success __retval(0)
+__naked void div32_overflow_check_1(void)
+{
+	asm volatile ("					\
+	w1 = -1;					\
+	w0 = %[int_min];				\
+	w0 /= w1;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV32 overflow, check 2")
+__success __retval(0)
+__naked void div32_overflow_check_2(void)
+{
+	asm volatile ("					\
+	w0 = %[int_min];				\
+	w0 /= -1;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV64 overflow, check 1")
+__success __retval(0)
+__naked void div64_overflow_check_1(void)
+{
+	asm volatile ("					\
+	r1 = -1;					\
+	r2 = %[llong_min] ll;				\
+	r2 /= r1;					\
+	w0 = 0;						\
+	if r0 == r2 goto l0_%=;				\
+	w0 = 1;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("DIV64 overflow, check 2")
+__success __retval(0)
+__naked void div64_overflow_check_2(void)
+{
+	asm volatile ("					\
+	r1 = %[llong_min] ll;				\
+	r1 /= -1;					\
+	w0 = 0;						\
+	if r0 == r1 goto l0_%=;				\
+	w0 = 1;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD32 overflow, check 1")
+__success __retval(_INT_MIN)
+__naked void mod32_overflow_check_1(void)
+{
+	asm volatile ("					\
+	w1 = -1;					\
+	w0 = %[int_min];				\
+	w0 %%= w1;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD32 overflow, check 2")
+__success __retval(_INT_MIN)
+__naked void mod32_overflow_check_2(void)
+{
+	asm volatile ("					\
+	w0 = %[int_min];				\
+	w0 %%= -1;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD64 overflow, check 1")
+__success __retval(1)
+__naked void mod64_overflow_check_1(void)
+{
+	asm volatile ("					\
+	r1 = -1;					\
+	r2 = %[llong_min] ll;				\
+	r3 = r2;					\
+	r2 %%= r1;					\
+	w0 = 0;						\
+	if r3 != r2 goto l0_%=;				\
+	w0 = 1;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("MOD64 overflow, check 2")
+__success __retval(1)
+__naked void mod64_overflow_check_2(void)
+{
+	asm volatile ("					\
+	r2 = %[llong_min] ll;				\
+	r3 = r2;					\
+	r2 %%= -1;					\
+	w0 = 0;						\
+	if r3 != r2 goto l0_%=;				\
+	w0 = 1;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_global_ptr_args.c b/tools/testing/selftests/bpf/progs/verifier_global_ptr_args.c
new file mode 100644
index 000000000000..1204fbc58178
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_global_ptr_args.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
+#include "bpf_misc.h"
+#include "xdp_metadata.h"
+#include "bpf_kfuncs.h"
+
+extern struct task_struct *bpf_task_acquire(struct task_struct *p) __ksym __weak;
+extern void bpf_task_release(struct task_struct *p) __ksym __weak;
+
+__weak int subprog_trusted_task_nullable(struct task_struct *task __arg_trusted __arg_nullable)
+{
+	if (!task)
+		return 0;
+	return task->pid + task->tgid;
+}
+
+__weak int subprog_trusted_task_nullable_extra_layer(struct task_struct *task __arg_trusted __arg_nullable)
+{
+	return subprog_trusted_task_nullable(task) + subprog_trusted_task_nullable(NULL);
+}
+
+SEC("?tp_btf/task_newtask")
+__success __log_level(2)
+__msg("Validating subprog_trusted_task_nullable() func#1...")
+__msg(": R1=trusted_ptr_or_null_task_struct(")
+int trusted_task_arg_nullable(void *ctx)
+{
+	struct task_struct *t1 = bpf_get_current_task_btf();
+	struct task_struct *t2 = bpf_task_acquire(t1);
+	int res = 0;
+
+	/* known NULL */
+	res += subprog_trusted_task_nullable(NULL);
+
+	/* known non-NULL */
+	res += subprog_trusted_task_nullable(t1);
+	res += subprog_trusted_task_nullable_extra_layer(t1);
+
+	/* unknown if NULL or not */
+	res += subprog_trusted_task_nullable(t2);
+	res += subprog_trusted_task_nullable_extra_layer(t2);
+
+	if (t2) {
+		/* known non-NULL after explicit NULL check, just in case */
+		res += subprog_trusted_task_nullable(t2);
+		res += subprog_trusted_task_nullable_extra_layer(t2);
+
+		bpf_task_release(t2);
+	}
+
+	return res;
+}
+
+__weak int subprog_trusted_task_nonnull(struct task_struct *task __arg_trusted)
+{
+	return task->pid + task->tgid;
+}
+
+SEC("?kprobe")
+__failure __log_level(2)
+__msg("R1 type=scalar expected=ptr_, trusted_ptr_, rcu_ptr_")
+__msg("Caller passes invalid args into func#1 ('subprog_trusted_task_nonnull')")
+int trusted_task_arg_nonnull_fail1(void *ctx)
+{
+	return subprog_trusted_task_nonnull(NULL);
+}
+
+SEC("?tp_btf/task_newtask")
+__failure __log_level(2)
+__msg("R1 type=ptr_or_null_ expected=ptr_, trusted_ptr_, rcu_ptr_")
+__msg("Caller passes invalid args into func#1 ('subprog_trusted_task_nonnull')")
+int trusted_task_arg_nonnull_fail2(void *ctx)
+{
+	struct task_struct *t = bpf_get_current_task_btf();
+	struct task_struct *nullable;
+	int res;
+
+	nullable = bpf_task_acquire(t);
+
+	 /* should fail, PTR_TO_BTF_ID_OR_NULL */
+	res = subprog_trusted_task_nonnull(nullable);
+
+	if (nullable)
+		bpf_task_release(nullable);
+
+	return res;
+}
+
+SEC("?kprobe")
+__success __log_level(2)
+__msg("Validating subprog_trusted_task_nonnull() func#1...")
+__msg(": R1=trusted_ptr_task_struct(")
+int trusted_task_arg_nonnull(void *ctx)
+{
+	struct task_struct *t = bpf_get_current_task_btf();
+
+	return subprog_trusted_task_nonnull(t);
+}
+
+struct task_struct___local {} __attribute__((preserve_access_index));
+
+__weak int subprog_nullable_task_flavor(
+	struct task_struct___local *task __arg_trusted __arg_nullable)
+{
+	char buf[16];
+
+	if (!task)
+		return 0;
+
+	return bpf_copy_from_user_task(&buf, sizeof(buf), NULL, (void *)task, 0);
+}
+
+SEC("?uprobe.s")
+__success __log_level(2)
+__msg("Validating subprog_nullable_task_flavor() func#1...")
+__msg(": R1=trusted_ptr_or_null_task_struct(")
+int flavor_ptr_nullable(void *ctx)
+{
+	struct task_struct___local *t = (void *)bpf_get_current_task_btf();
+
+	return subprog_nullable_task_flavor(t);
+}
+
+__weak int subprog_nonnull_task_flavor(struct task_struct___local *task __arg_trusted)
+{
+	char buf[16];
+
+	return bpf_copy_from_user_task(&buf, sizeof(buf), NULL, (void *)task, 0);
+}
+
+SEC("?uprobe.s")
+__success __log_level(2)
+__msg("Validating subprog_nonnull_task_flavor() func#1...")
+__msg(": R1=trusted_ptr_task_struct(")
+int flavor_ptr_nonnull(void *ctx)
+{
+	struct task_struct *t = bpf_get_current_task_btf();
+
+	return subprog_nonnull_task_flavor((void *)t);
+}
+
+__weak int subprog_trusted_destroy(struct task_struct *task __arg_trusted)
+{
+	bpf_task_release(task); /* should be rejected */
+
+	return 0;
+}
+
+SEC("?tp_btf/task_newtask")
+__failure __log_level(2)
+__msg("release kernel function bpf_task_release expects refcounted PTR_TO_BTF_ID")
+int BPF_PROG(trusted_destroy_fail, struct task_struct *task, u64 clone_flags)
+{
+	return subprog_trusted_destroy(task);
+}
+
+__weak int subprog_trusted_acq_rel(struct task_struct *task __arg_trusted)
+{
+	struct task_struct *owned;
+
+	owned = bpf_task_acquire(task);
+	if (!owned)
+		return 0;
+
+	bpf_task_release(owned); /* this one is OK, we acquired it locally */
+
+	return 0;
+}
+
+SEC("?tp_btf/task_newtask")
+__success __log_level(2)
+int BPF_PROG(trusted_acq_rel, struct task_struct *task, u64 clone_flags)
+{
+	return subprog_trusted_acq_rel(task);
+}
+
+__weak int subprog_untrusted_bad_tags(struct task_struct *task __arg_untrusted __arg_nullable)
+{
+	return task->pid;
+}
+
+SEC("tp_btf/sys_enter")
+__failure
+__msg("arg#0 untrusted cannot be combined with any other tags")
+int untrusted_bad_tags(void *ctx)
+{
+	return subprog_untrusted_bad_tags(0);
+}
+
+struct local_type_wont_be_accepted {};
+
+__weak int subprog_untrusted_bad_type(struct local_type_wont_be_accepted *p __arg_untrusted)
+{
+	return 0;
+}
+
+SEC("tp_btf/sys_enter")
+__failure
+__msg("arg#0 reference type('STRUCT local_type_wont_be_accepted') has no matches")
+int untrusted_bad_type(void *ctx)
+{
+	return subprog_untrusted_bad_type(bpf_rdonly_cast(0, 0));
+}
+
+__weak int subprog_untrusted(const volatile struct task_struct *restrict task __arg_untrusted)
+{
+	return task->pid;
+}
+
+SEC("tp_btf/sys_enter")
+__success
+__log_level(2)
+__msg("r1 = {{.*}}; {{.*}}R1=trusted_ptr_task_struct()")
+__msg("Func#1 ('subprog_untrusted') is global and assumed valid.")
+__msg("Validating subprog_untrusted() func#1...")
+__msg(": R1=untrusted_ptr_task_struct")
+int trusted_to_untrusted(void *ctx)
+{
+	return subprog_untrusted(bpf_get_current_task_btf());
+}
+
+char mem[16];
+u32 offset;
+
+SEC("tp_btf/sys_enter")
+__success
+int anything_to_untrusted(void *ctx)
+{
+	/* untrusted to untrusted */
+	subprog_untrusted(bpf_core_cast(0, struct task_struct));
+	/* wrong type to untrusted */
+	subprog_untrusted((void *)bpf_core_cast(0, struct bpf_verifier_env));
+	/* map value to untrusted */
+	subprog_untrusted((void *)mem);
+	/* scalar to untrusted */
+	subprog_untrusted(0);
+	/* variable offset to untrusted (map) */
+	subprog_untrusted((void *)mem + offset);
+	/* variable offset to untrusted (trusted) */
+	subprog_untrusted((void *)bpf_get_current_task_btf() + offset);
+	return 0;
+}
+
+__weak int subprog_untrusted2(struct task_struct *task __arg_untrusted)
+{
+	return subprog_trusted_task_nullable(task);
+}
+
+SEC("tp_btf/sys_enter")
+__failure
+__msg("R1 type=untrusted_ptr_ expected=ptr_, trusted_ptr_, rcu_ptr_")
+__msg("Caller passes invalid args into func#{{.*}} ('subprog_trusted_task_nullable')")
+int untrusted_to_trusted(void *ctx)
+{
+	return subprog_untrusted2(bpf_get_current_task_btf());
+}
+
+__weak int subprog_void_untrusted(void *p __arg_untrusted)
+{
+	return *(int *)p;
+}
+
+__weak int subprog_char_untrusted(char *p __arg_untrusted)
+{
+	return *(int *)p;
+}
+
+__weak int subprog_enum_untrusted(enum bpf_attach_type *p __arg_untrusted)
+{
+	return *(int *)p;
+}
+
+SEC("tp_btf/sys_enter")
+__success
+__log_level(2)
+__msg("r1 = {{.*}}; {{.*}}R1=trusted_ptr_task_struct()")
+__msg("Func#1 ('subprog_void_untrusted') is global and assumed valid.")
+__msg("Validating subprog_void_untrusted() func#1...")
+__msg(": R1=rdonly_untrusted_mem(sz=0)")
+int trusted_to_untrusted_mem(void *ctx)
+{
+	return subprog_void_untrusted(bpf_get_current_task_btf());
+}
+
+SEC("tp_btf/sys_enter")
+__success
+int anything_to_untrusted_mem(void *ctx)
+{
+	/* untrusted to untrusted mem */
+	subprog_void_untrusted(bpf_core_cast(0, struct task_struct));
+	/* map value to untrusted mem */
+	subprog_void_untrusted(mem);
+	/* scalar to untrusted mem */
+	subprog_void_untrusted(0);
+	/* variable offset to untrusted mem (map) */
+	subprog_void_untrusted((void *)mem + offset);
+	/* variable offset to untrusted mem (trusted) */
+	subprog_void_untrusted(bpf_get_current_task_btf() + offset);
+	/* variable offset to untrusted char/enum (map) */
+	subprog_char_untrusted(mem + offset);
+	subprog_enum_untrusted((void *)mem + offset);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c b/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c
new file mode 100644
index 000000000000..20904cd2baa2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_global_subprogs.c
@@ -0,0 +1,391 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+#include "xdp_metadata.h"
+#include "bpf_kfuncs.h"
+#include "err.h"
+
+/* The compiler may be able to detect the access to uninitialized
+   memory in the routines performing out of bound memory accesses and
+   emit warnings about it.  This is the case of GCC. */
+#if !defined(__clang__)
+#pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+#endif
+
+int arr[1];
+int unkn_idx;
+const volatile bool call_dead_subprog = false;
+
+__noinline long global_bad(void)
+{
+	return arr[unkn_idx]; /* BOOM */
+}
+
+__noinline long global_good(void)
+{
+	return arr[0];
+}
+
+__noinline long global_calls_bad(void)
+{
+	return global_good() + global_bad() /* does BOOM indirectly */;
+}
+
+__noinline long global_calls_good_only(void)
+{
+	return global_good();
+}
+
+__noinline long global_dead(void)
+{
+	return arr[0] * 2;
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+/* main prog is validated completely first */
+__msg("('global_calls_good_only') is global and assumed valid.")
+/* eventually global_good() is transitively validated as well */
+__msg("Validating global_good() func")
+__msg("('global_good') is safe for any args that match its prototype")
+int chained_global_func_calls_success(void)
+{
+	int sum = 0;
+
+	if (call_dead_subprog)
+		sum += global_dead();
+	return global_calls_good_only() + sum;
+}
+
+SEC("?raw_tp")
+__failure __log_level(2)
+/* main prog validated successfully first */
+__msg("('global_calls_bad') is global and assumed valid.")
+/* eventually we validate global_bad() and fail */
+__msg("Validating global_bad() func")
+__msg("math between map_value pointer and register") /* BOOM */
+int chained_global_func_calls_bad(void)
+{
+	return global_calls_bad();
+}
+
+/* do out of bounds access forcing verifier to fail verification if this
+ * global func is called
+ */
+__noinline int global_unsupp(const int *mem)
+{
+	if (!mem)
+		return 0;
+	return mem[100]; /* BOOM */
+}
+
+const volatile bool skip_unsupp_global = true;
+
+SEC("?raw_tp")
+__success
+int guarded_unsupp_global_called(void)
+{
+	if (!skip_unsupp_global)
+		return global_unsupp(NULL);
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __log_level(2)
+__msg("Func#1 ('global_unsupp') is global and assumed valid.")
+__msg("Validating global_unsupp() func#1...")
+__msg("value is outside of the allowed memory range")
+int unguarded_unsupp_global_called(void)
+{
+	int x = 0;
+
+	return global_unsupp(&x);
+}
+
+long stack[128];
+
+__weak int subprog_nullable_ptr_bad(int *p)
+{
+	return (*p) * 2; /* bad, missing null check */
+}
+
+SEC("?raw_tp")
+__failure __log_level(2)
+__msg("invalid mem access 'mem_or_null'")
+int arg_tag_nullable_ptr_fail(void *ctx)
+{
+	int x = 42;
+
+	return subprog_nullable_ptr_bad(&x);
+}
+
+typedef struct {
+	int x;
+} user_struct_t;
+
+__noinline __weak int subprog_user_anon_mem(user_struct_t *t)
+{
+	return t ? t->x : 0;
+}
+
+SEC("?tracepoint")
+__failure __log_level(2)
+__msg("invalid bpf_context access")
+__msg("Caller passes invalid args into func#1 ('subprog_user_anon_mem')")
+int anon_user_mem_invalid(void *ctx)
+{
+	/* can't pass PTR_TO_CTX as user memory */
+	return subprog_user_anon_mem(ctx);
+}
+
+SEC("?tracepoint")
+__success __log_level(2)
+__msg("Func#1 ('subprog_user_anon_mem') is safe for any args that match its prototype")
+int anon_user_mem_valid(void *ctx)
+{
+	user_struct_t t = { .x = 42 };
+
+	return subprog_user_anon_mem(&t);
+}
+
+__noinline __weak int subprog_nonnull_ptr_good(int *p1 __arg_nonnull, int *p2 __arg_nonnull)
+{
+	return (*p1) * (*p2); /* good, no need for NULL checks */
+}
+
+int x = 47;
+
+SEC("?raw_tp")
+__success __log_level(2)
+int arg_tag_nonnull_ptr_good(void *ctx)
+{
+	int y = 74;
+
+	return subprog_nonnull_ptr_good(&x, &y);
+}
+
+/* this global subprog can be now called from many types of entry progs, each
+ * with different context type
+ */
+__weak int subprog_ctx_tag(void *ctx __arg_ctx)
+{
+	return bpf_get_stack(ctx, stack, sizeof(stack), 0);
+}
+
+__weak int raw_tp_canonical(struct bpf_raw_tracepoint_args *ctx __arg_ctx)
+{
+	return 0;
+}
+
+__weak int raw_tp_u64_array(u64 *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+int arg_tag_ctx_raw_tp(void *ctx)
+{
+	return subprog_ctx_tag(ctx) + raw_tp_canonical(ctx) + raw_tp_u64_array(ctx);
+}
+
+SEC("?raw_tp.w")
+__success __log_level(2)
+int arg_tag_ctx_raw_tp_writable(void *ctx)
+{
+	return subprog_ctx_tag(ctx) + raw_tp_canonical(ctx) + raw_tp_u64_array(ctx);
+}
+
+SEC("?tp_btf/sys_enter")
+__success __log_level(2)
+int arg_tag_ctx_raw_tp_btf(void *ctx)
+{
+	return subprog_ctx_tag(ctx) + raw_tp_canonical(ctx) + raw_tp_u64_array(ctx);
+}
+
+struct whatever { };
+
+__weak int tp_whatever(struct whatever *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?tp")
+__success __log_level(2)
+int arg_tag_ctx_tp(void *ctx)
+{
+	return subprog_ctx_tag(ctx) + tp_whatever(ctx);
+}
+
+__weak int kprobe_subprog_pt_regs(struct pt_regs *ctx __arg_ctx)
+{
+	return 0;
+}
+
+__weak int kprobe_subprog_typedef(bpf_user_pt_regs_t *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?kprobe")
+__success __log_level(2)
+int arg_tag_ctx_kprobe(void *ctx)
+{
+	return subprog_ctx_tag(ctx) +
+	       kprobe_subprog_pt_regs(ctx) +
+	       kprobe_subprog_typedef(ctx);
+}
+
+__weak int perf_subprog_regs(
+#if defined(bpf_target_riscv)
+	struct user_regs_struct *ctx __arg_ctx
+#elif defined(bpf_target_s390)
+	/* user_pt_regs typedef is anonymous struct, so only `void *` works */
+	void *ctx __arg_ctx
+#elif defined(bpf_target_loongarch) || defined(bpf_target_arm64) || defined(bpf_target_powerpc)
+	struct user_pt_regs *ctx __arg_ctx
+#else
+	struct pt_regs *ctx __arg_ctx
+#endif
+)
+{
+	return 0;
+}
+
+__weak int perf_subprog_typedef(bpf_user_pt_regs_t *ctx __arg_ctx)
+{
+	return 0;
+}
+
+__weak int perf_subprog_canonical(struct bpf_perf_event_data *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?perf_event")
+__success __log_level(2)
+int arg_tag_ctx_perf(void *ctx)
+{
+	return subprog_ctx_tag(ctx) +
+	       perf_subprog_regs(ctx) +
+	       perf_subprog_typedef(ctx) +
+	       perf_subprog_canonical(ctx);
+}
+
+__weak int iter_subprog_void(void *ctx __arg_ctx)
+{
+	return 0;
+}
+
+__weak int iter_subprog_typed(struct bpf_iter__task *ctx __arg_ctx)
+{
+	return 0;
+}
+
+SEC("?iter/task")
+__success __log_level(2)
+int arg_tag_ctx_iter_task(struct bpf_iter__task *ctx)
+{
+	return (iter_subprog_void(ctx) + iter_subprog_typed(ctx)) & 1;
+}
+
+__weak int tracing_subprog_void(void *ctx __arg_ctx)
+{
+	return 0;
+}
+
+__weak int tracing_subprog_u64(u64 *ctx __arg_ctx)
+{
+	return 0;
+}
+
+int acc;
+
+SEC("?fentry/" SYS_PREFIX "sys_nanosleep")
+__success __log_level(2)
+int BPF_PROG(arg_tag_ctx_fentry)
+{
+	acc += tracing_subprog_void(ctx) + tracing_subprog_u64(ctx);
+	return 0;
+}
+
+SEC("?fexit/" SYS_PREFIX "sys_nanosleep")
+__success __log_level(2)
+int BPF_PROG(arg_tag_ctx_fexit)
+{
+	acc += tracing_subprog_void(ctx) + tracing_subprog_u64(ctx);
+	return 0;
+}
+
+SEC("?fmod_ret/" SYS_PREFIX "sys_nanosleep")
+__success __log_level(2)
+int BPF_PROG(arg_tag_ctx_fmod_ret)
+{
+	return tracing_subprog_void(ctx) + tracing_subprog_u64(ctx);
+}
+
+SEC("?lsm/bpf")
+__success __log_level(2)
+int BPF_PROG(arg_tag_ctx_lsm)
+{
+	int ret;
+
+	ret = tracing_subprog_void(ctx) + tracing_subprog_u64(ctx);
+	set_if_not_errno_or_zero(ret, -1);
+	return ret;
+}
+
+SEC("?struct_ops/test_1")
+__success __log_level(2)
+int BPF_PROG(arg_tag_ctx_struct_ops)
+{
+	return tracing_subprog_void(ctx) + tracing_subprog_u64(ctx);
+}
+
+SEC(".struct_ops")
+struct bpf_dummy_ops dummy_1 = {
+	.test_1 = (void *)arg_tag_ctx_struct_ops,
+};
+
+SEC("?syscall")
+__success __log_level(2)
+int arg_tag_ctx_syscall(void *ctx)
+{
+	return tracing_subprog_void(ctx) + tracing_subprog_u64(ctx) + tp_whatever(ctx);
+}
+
+__weak int subprog_dynptr(struct bpf_dynptr *dptr)
+{
+	long *d, t, buf[1] = {};
+
+	d = bpf_dynptr_data(dptr, 0, sizeof(long));
+	if (!d)
+		return 0;
+
+	t = *d + 1;
+
+	d = bpf_dynptr_slice(dptr, 0, &buf, sizeof(long));
+	if (!d)
+		return t;
+
+	t = *d + 2;
+
+	return t;
+}
+
+SEC("?xdp")
+__success __log_level(2)
+int arg_tag_dynptr(struct xdp_md *ctx)
+{
+	struct bpf_dynptr dptr;
+
+	bpf_dynptr_from_xdp(ctx, 0, &dptr);
+
+	return subprog_dynptr(&dptr);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_gotol.c b/tools/testing/selftests/bpf/progs/verifier_gotol.c
new file mode 100644
index 000000000000..d5d8f24df394
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_gotol.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#ifdef CAN_USE_GOTOL
+
+SEC("socket")
+__description("gotol, small_imm")
+__success __success_unpriv __retval(1)
+__naked void gotol_small_imm(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	if r0 == 0 goto l0_%=;				\
+	gotol l1_%=;					\
+l2_%=:							\
+	gotol l3_%=;					\
+l1_%=:							\
+	r0 = 1;						\
+	gotol l2_%=;					\
+l0_%=:							\
+	r0 = 2;						\
+l3_%=:							\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("gotol, large_imm")
+__success __failure_unpriv __retval(40000)
+__naked void gotol_large_imm(void)
+{
+	asm volatile ("					\
+	gotol 1f;					\
+0:							\
+	r0 = 0;						\
+	.rept 40000;					\
+	r0 += 1;					\
+	.endr;						\
+	exit;						\
+1:	gotol 0b;					\
+"	:
+	:
+	: __clobber_all);
+}
+
+#else
+
+SEC("socket")
+__description("cpuv4 is not supported by compiler or jit, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_gotox.c b/tools/testing/selftests/bpf/progs/verifier_gotox.c
new file mode 100644
index 000000000000..607dad058ca1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_gotox.c
@@ -0,0 +1,389 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Isovalent */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "../../../include/linux/filter.h"
+
+#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
+
+#define DEFINE_SIMPLE_JUMP_TABLE_PROG(NAME, SRC_REG, OFF, IMM, OUTCOME)	\
+									\
+	SEC("socket")							\
+	OUTCOME								\
+	__naked void jump_table_ ## NAME(void)				\
+	{								\
+		asm volatile ("						\
+		.pushsection .jumptables,\"\",@progbits;		\
+	jt0_%=:								\
+		.quad ret0_%= - socket;					\
+		.quad ret1_%= - socket;					\
+		.size jt0_%=, 16;					\
+		.global jt0_%=;						\
+		.popsection;						\
+									\
+		r0 = jt0_%= ll;						\
+		r0 += 8;						\
+		r0 = *(u64 *)(r0 + 0);					\
+		.8byte %[gotox_r0];					\
+		ret0_%=:						\
+		r0 = 0;							\
+		exit;							\
+		ret1_%=:						\
+		r0 = 1;							\
+		exit;							\
+	"	:							\
+		: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, (SRC_REG), (OFF) , (IMM))) \
+		: __clobber_all);					\
+	}
+
+/*
+ * The first program which doesn't use reserved fields
+ * loads and works properly. The rest fail to load.
+ */
+DEFINE_SIMPLE_JUMP_TABLE_PROG(ok,                          BPF_REG_0, 0, 0, __success __retval(1))
+DEFINE_SIMPLE_JUMP_TABLE_PROG(reserved_field_src_reg,      BPF_REG_1, 0, 0, __failure __msg("BPF_JA|BPF_X uses reserved fields"))
+DEFINE_SIMPLE_JUMP_TABLE_PROG(reserved_field_non_zero_off, BPF_REG_0, 1, 0, __failure __msg("BPF_JA|BPF_X uses reserved fields"))
+DEFINE_SIMPLE_JUMP_TABLE_PROG(reserved_field_non_zero_imm, BPF_REG_0, 0, 1, __failure __msg("BPF_JA|BPF_X uses reserved fields"))
+
+/*
+ * Gotox is forbidden when there is no jump table loaded
+ * which points to the sub-function where the gotox is used
+ */
+SEC("socket")
+__failure __msg("no jump tables found for subprog starting at 0")
+__naked void jump_table_no_jump_table(void)
+{
+	asm volatile ("						\
+	.8byte %[gotox_r0];					\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+/*
+ * Incorrect type of the target register, only PTR_TO_INSN allowed
+ */
+SEC("socket")
+__failure __msg("R1 has type scalar, expected PTR_TO_INSN")
+__naked void jump_table_incorrect_dst_reg_type(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 8;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	r1 = 42;						\
+	.8byte %[gotox_r1];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r1, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_1, 0, 0 , 0))
+	: __clobber_all);
+}
+
+#define DEFINE_INVALID_SIZE_PROG(READ_SIZE, OUTCOME)			\
+									\
+	SEC("socket")							\
+	OUTCOME								\
+	__naked void jump_table_invalid_read_size_ ## READ_SIZE(void)	\
+	{								\
+		asm volatile ("						\
+		.pushsection .jumptables,\"\",@progbits;		\
+	jt0_%=:								\
+		.quad ret0_%= - socket;					\
+		.quad ret1_%= - socket;					\
+		.size jt0_%=, 16;					\
+		.global jt0_%=;						\
+		.popsection;						\
+									\
+		r0 = jt0_%= ll;						\
+		r0 += 8;						\
+		r0 = *(" #READ_SIZE " *)(r0 + 0);			\
+		.8byte %[gotox_r0];					\
+		ret0_%=:						\
+		r0 = 0;							\
+		exit;							\
+		ret1_%=:						\
+		r0 = 1;							\
+		exit;							\
+	"	:							\
+		: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0)) \
+		: __clobber_all);					\
+	}
+
+DEFINE_INVALID_SIZE_PROG(u32, __failure __msg("Invalid read of 4 bytes from insn_array"))
+DEFINE_INVALID_SIZE_PROG(u16, __failure __msg("Invalid read of 2 bytes from insn_array"))
+DEFINE_INVALID_SIZE_PROG(u8,  __failure __msg("Invalid read of 1 bytes from insn_array"))
+
+SEC("socket")
+__failure __msg("misaligned value access off 0+1+0 size 8")
+__naked void jump_table_misaligned_access(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 1;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__failure __msg("invalid access to map value, value_size=16 off=24 size=8")
+__naked void jump_table_invalid_mem_acceess_pos(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 24;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__failure __msg("invalid access to map value, value_size=16 off=-24 size=8")
+__naked void jump_table_invalid_mem_acceess_neg(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 -= 24;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__success __retval(1)
+__naked void jump_table_add_sub_ok(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 -= 24;						\
+	r0 += 32;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__failure __msg("write into map forbidden, value_size=16 off=8 size=8")
+__naked void jump_table_no_writes(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 16;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 8;						\
+	r1 = 0xbeef;						\
+	*(u64 *)(r0 + 0) = r1;					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+#define DEFINE_JUMP_TABLE_USE_REG(REG)					\
+	SEC("socket")							\
+	__success __retval(1)						\
+	__naked void jump_table_use_reg_r ## REG(void)			\
+	{								\
+		asm volatile ("						\
+		.pushsection .jumptables,\"\",@progbits;		\
+	jt0_%=:								\
+		.quad ret0_%= - socket;					\
+		.quad ret1_%= - socket;					\
+		.size jt0_%=, 16;					\
+		.global jt0_%=;						\
+		.popsection;						\
+									\
+		r0 = jt0_%= ll;						\
+		r0 += 8;						\
+		r" #REG " = *(u64 *)(r0 + 0);				\
+		.8byte %[gotox_rX];					\
+		ret0_%=:						\
+		r0 = 0;							\
+		exit;							\
+		ret1_%=:						\
+		r0 = 1;							\
+		exit;							\
+	"	:							\
+		: __imm_insn(gotox_rX, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_ ## REG, 0, 0 , 0)) \
+		: __clobber_all);					\
+	}
+
+DEFINE_JUMP_TABLE_USE_REG(0)
+DEFINE_JUMP_TABLE_USE_REG(1)
+DEFINE_JUMP_TABLE_USE_REG(2)
+DEFINE_JUMP_TABLE_USE_REG(3)
+DEFINE_JUMP_TABLE_USE_REG(4)
+DEFINE_JUMP_TABLE_USE_REG(5)
+DEFINE_JUMP_TABLE_USE_REG(6)
+DEFINE_JUMP_TABLE_USE_REG(7)
+DEFINE_JUMP_TABLE_USE_REG(8)
+DEFINE_JUMP_TABLE_USE_REG(9)
+
+__used static int test_subprog(void)
+{
+	return 0;
+}
+
+SEC("socket")
+__failure __msg("jump table for insn 4 points outside of the subprog [0,10]")
+__naked void jump_table_outside_subprog(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.quad ret_out_%= - socket;				\
+	.size jt0_%=, 24;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 8;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	call test_subprog;					\
+	exit;							\
+	ret_out_%=:						\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__success __retval(1)
+__naked void jump_table_contains_non_unique_values(void)
+{
+	asm volatile ("						\
+	.pushsection .jumptables,\"\",@progbits;		\
+jt0_%=:								\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.quad ret0_%= - socket;					\
+	.quad ret1_%= - socket;					\
+	.size jt0_%=, 80;					\
+	.global jt0_%=;						\
+	.popsection;						\
+								\
+	r0 = jt0_%= ll;						\
+	r0 += 8;						\
+	r0 = *(u64 *)(r0 + 0);					\
+	.8byte %[gotox_r0];					\
+	ret0_%=:						\
+	r0 = 0;							\
+	exit;							\
+	ret1_%=:						\
+	r0 = 1;							\
+	exit;							\
+"	:							\
+	: __imm_insn(gotox_r0, BPF_RAW_INSN(BPF_JMP | BPF_JA | BPF_X, BPF_REG_0, 0, 0 , 0))
+	: __clobber_all);
+}
+
+#endif /* __TARGET_ARCH_x86 || __TARGET_ARCH_arm64 */
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_access_var_len.c b/tools/testing/selftests/bpf/progs/verifier_helper_access_var_len.c
new file mode 100644
index 000000000000..f2c54e4d89eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_access_var_len.c
@@ -0,0 +1,825 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_access_var_len.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} map_ringbuf SEC(".maps");
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, bitwise AND + JMP, correct bounds")
+__success
+__naked void bitwise_and_jmp_correct_bounds(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -64;					\
+	r0 = 0;						\
+	*(u64*)(r10 - 64) = r0;				\
+	*(u64*)(r10 - 56) = r0;				\
+	*(u64*)(r10 - 48) = r0;				\
+	*(u64*)(r10 - 40) = r0;				\
+	*(u64*)(r10 - 32) = r0;				\
+	*(u64*)(r10 - 24) = r0;				\
+	*(u64*)(r10 - 16) = r0;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = 16;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	r2 &= 64;					\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("helper access to variable memory: stack, bitwise AND, zero included")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack R2 off -64+0 size 64")
+__retval(0)
+__naked void stack_bitwise_and_zero_included(void)
+{
+	asm volatile ("					\
+	/* set max stack size */			\
+	r6 = 0;						\
+	*(u64*)(r10 - 128) = r6;			\
+	/* set r3 to a random value */			\
+	call %[bpf_get_prandom_u32];			\
+	r3 = r0;					\
+	/* use bitwise AND to limit r3 range to [0, 64] */\
+	r3 &= 64;					\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = r10;					\
+	r2 += -64;					\
+	r4 = 0;						\
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with\
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.\
+	 * For unpriv this should signal an error, because memory at &fp[-64] is\
+	 * not initialized.				\
+	 */						\
+	call %[bpf_ringbuf_output];			\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_ringbuf_output),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, bitwise AND + JMP, wrong max")
+__failure __msg("invalid write to stack R1 off=-64 size=65")
+__naked void bitwise_and_jmp_wrong_max(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + 8);				\
+	r1 = r10;					\
+	r1 += -64;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	r2 &= 65;					\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP, correct bounds")
+__success
+__naked void memory_stack_jmp_correct_bounds(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -64;					\
+	r0 = 0;						\
+	*(u64*)(r10 - 64) = r0;				\
+	*(u64*)(r10 - 56) = r0;				\
+	*(u64*)(r10 - 48) = r0;				\
+	*(u64*)(r10 - 40) = r0;				\
+	*(u64*)(r10 - 32) = r0;				\
+	*(u64*)(r10 - 24) = r0;				\
+	*(u64*)(r10 - 16) = r0;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = 16;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	if r2 > 64 goto l0_%=;				\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP (signed), correct bounds")
+__success
+__naked void stack_jmp_signed_correct_bounds(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -64;					\
+	r0 = 0;						\
+	*(u64*)(r10 - 64) = r0;				\
+	*(u64*)(r10 - 56) = r0;				\
+	*(u64*)(r10 - 48) = r0;				\
+	*(u64*)(r10 - 40) = r0;				\
+	*(u64*)(r10 - 32) = r0;				\
+	*(u64*)(r10 - 24) = r0;				\
+	*(u64*)(r10 - 16) = r0;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = 16;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	if r2 s> 64 goto l0_%=;				\
+	r4 = 0;						\
+	if r4 s>= r2 goto l0_%=;			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP, bounds + offset")
+__failure __msg("invalid write to stack R1 off=-64 size=65")
+__naked void memory_stack_jmp_bounds_offset(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + 8);				\
+	r1 = r10;					\
+	r1 += -64;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	if r2 > 64 goto l0_%=;				\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r2 += 1;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP, wrong max")
+__failure __msg("invalid write to stack R1 off=-64 size=65")
+__naked void memory_stack_jmp_wrong_max(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + 8);				\
+	r1 = r10;					\
+	r1 += -64;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	if r2 > 65 goto l0_%=;				\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP, no max check")
+__failure
+/* because max wasn't checked, signed min is negative */
+__msg("R2 min value is negative, either use unsigned or 'var &= const'")
+__naked void stack_jmp_no_max_check(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + 8);				\
+	r1 = r10;					\
+	r1 += -64;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	r4 = 0;						\
+	if r4 >= r2 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("helper access to variable memory: stack, JMP, no min check")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack R2 off -64+0 size 64")
+__retval(0)
+__naked void stack_jmp_no_min_check(void)
+{
+	asm volatile ("					\
+	/* set max stack size */			\
+	r6 = 0;						\
+	*(u64*)(r10 - 128) = r6;			\
+	/* set r3 to a random value */			\
+	call %[bpf_get_prandom_u32];			\
+	r3 = r0;					\
+	/* use JMP to limit r3 range to [0, 64] */	\
+	if r3 > 64 goto l0_%=;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = r10;					\
+	r2 += -64;					\
+	r4 = 0;						\
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with\
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.\
+	 * For unpriv this should signal an error, because memory at &fp[-64] is\
+	 * not initialized.				\
+	 */						\
+	call %[bpf_ringbuf_output];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_ringbuf_output),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: stack, JMP (signed), no min check")
+__failure __msg("R2 min value is negative")
+__naked void jmp_signed_no_min_check(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + 8);				\
+	r1 = r10;					\
+	r1 += -64;					\
+	*(u64*)(r1 - 128) = r2;				\
+	r2 = *(u64*)(r1 - 128);				\
+	if r2 s> 64 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: map, JMP, correct bounds")
+__success
+__naked void memory_map_jmp_correct_bounds(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[sizeof_test_val];			\
+	*(u64*)(r10 - 128) = r2;			\
+	r2 = *(u64*)(r10 - 128);			\
+	if r2 s> %[sizeof_test_val] goto l1_%=;		\
+	r4 = 0;						\
+	if r4 s>= r2 goto l1_%=;			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(sizeof_test_val, sizeof(struct test_val))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: map, JMP, wrong max")
+__failure __msg("invalid access to map value, value_size=48 off=0 size=49")
+__naked void memory_map_jmp_wrong_max(void)
+{
+	asm volatile ("					\
+	r6 = *(u64*)(r1 + 8);				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = r6;					\
+	*(u64*)(r10 - 128) = r2;			\
+	r2 = *(u64*)(r10 - 128);			\
+	if r2 s> %[__imm_0] goto l1_%=;			\
+	r4 = 0;						\
+	if r4 s>= r2 goto l1_%=;			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) + 1)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: map adjusted, JMP, correct bounds")
+__success
+__naked void map_adjusted_jmp_correct_bounds(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += 20;					\
+	r2 = %[sizeof_test_val];			\
+	*(u64*)(r10 - 128) = r2;			\
+	r2 = *(u64*)(r10 - 128);			\
+	if r2 s> %[__imm_0] goto l1_%=;			\
+	r4 = 0;						\
+	if r4 s>= r2 goto l1_%=;			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - 20),
+	  __imm_const(sizeof_test_val, sizeof(struct test_val))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: map adjusted, JMP, wrong max")
+__failure __msg("R1 min value is outside of the allowed memory range")
+__naked void map_adjusted_jmp_wrong_max(void)
+{
+	asm volatile ("					\
+	r6 = *(u64*)(r1 + 8);				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += 20;					\
+	r2 = r6;					\
+	*(u64*)(r10 - 128) = r2;			\
+	r2 = *(u64*)(r10 - 128);			\
+	if r2 s> %[__imm_0] goto l1_%=;			\
+	r4 = 0;						\
+	if r4 s>= r2 goto l1_%=;			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l1_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - 19)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size = 0 allowed on NULL (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+__naked void ptr_to_mem_or_null_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	r2 = 0;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size > 0 not allowed on NULL (ARG_PTR_TO_MEM_OR_NULL)")
+__failure __msg("R1 type=scalar expected=fp")
+__naked void ptr_to_mem_or_null_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + 0);				\
+	r1 = 0;						\
+	*(u64*)(r10 - 128) = r2;			\
+	r2 = *(u64*)(r10 - 128);			\
+	r2 &= 64;					\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size = 0 allowed on != NULL stack pointer (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+__naked void ptr_to_mem_or_null_3(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -8;					\
+	r2 = 0;						\
+	*(u64*)(r1 + 0) = r2;				\
+	r2 &= 8;					\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size = 0 allowed on != NULL map pointer (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+__naked void ptr_to_mem_or_null_4(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 0;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size possible = 0 allowed on != NULL stack pointer (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+__naked void ptr_to_mem_or_null_5(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = *(u64*)(r0 + 0);				\
+	if r2 > 8 goto l0_%=;				\
+	r1 = r10;					\
+	r1 += -8;					\
+	*(u64*)(r1 + 0) = r2;				\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size possible = 0 allowed on != NULL map pointer (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+__naked void ptr_to_mem_or_null_6(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = *(u64*)(r0 + 0);				\
+	if r2 > 8 goto l0_%=;				\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to variable memory: size possible = 0 allowed on != NULL packet pointer (ARG_PTR_TO_MEM_OR_NULL)")
+__success __retval(0)
+/* csum_diff of 64-byte packet */
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void ptr_to_mem_or_null_7(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r6;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = *(u64*)(r6 + 0);				\
+	if r2 > 8 goto l0_%=;				\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size = 0 not allowed on NULL (!ARG_PTR_TO_MEM_OR_NULL)")
+__failure __msg("R1 type=scalar expected=fp")
+__naked void ptr_to_mem_or_null_8(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	r2 = 0;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size > 0 not allowed on NULL (!ARG_PTR_TO_MEM_OR_NULL)")
+__failure __msg("R1 type=scalar expected=fp")
+__naked void ptr_to_mem_or_null_9(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	r2 = 1;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size = 0 allowed on != NULL stack pointer (!ARG_PTR_TO_MEM_OR_NULL)")
+__success
+__naked void ptr_to_mem_or_null_10(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -8;					\
+	r2 = 0;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size = 0 allowed on != NULL map pointer (!ARG_PTR_TO_MEM_OR_NULL)")
+__success
+__naked void ptr_to_mem_or_null_11(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 0;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size possible = 0 allowed on != NULL stack pointer (!ARG_PTR_TO_MEM_OR_NULL)")
+__success
+__naked void ptr_to_mem_or_null_12(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = *(u64*)(r0 + 0);				\
+	if r2 > 8 goto l0_%=;				\
+	r1 = r10;					\
+	r1 += -8;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: size possible = 0 allowed on != NULL map pointer (!ARG_PTR_TO_MEM_OR_NULL)")
+__success
+__naked void ptr_to_mem_or_null_13(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = *(u64*)(r0 + 0);				\
+	if r2 > 8 goto l0_%=;				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("helper access to variable memory: 8 bytes leak")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack R2 off -64+32 size 64")
+__retval(0)
+__naked void variable_memory_8_bytes_leak(void)
+{
+	asm volatile ("					\
+	/* set max stack size */			\
+	r6 = 0;						\
+	*(u64*)(r10 - 128) = r6;			\
+	/* set r3 to a random value */			\
+	call %[bpf_get_prandom_u32];			\
+	r3 = r0;					\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = r10;					\
+	r2 += -64;					\
+	r0 = 0;						\
+	*(u64*)(r10 - 64) = r0;				\
+	*(u64*)(r10 - 56) = r0;				\
+	*(u64*)(r10 - 48) = r0;				\
+	*(u64*)(r10 - 40) = r0;				\
+	/* Note: fp[-32] left uninitialized */		\
+	*(u64*)(r10 - 24) = r0;				\
+	*(u64*)(r10 - 16) = r0;				\
+	*(u64*)(r10 - 8) = r0;				\
+	/* Limit r3 range to [1, 64] */			\
+	r3 &= 63;					\
+	r3 += 1;					\
+	r4 = 0;						\
+	/* Call bpf_ringbuf_output(), it is one of a few helper functions with\
+	 * ARG_CONST_SIZE_OR_ZERO parameter allowed in unpriv mode.\
+	 * For unpriv this should signal an error, because memory region [1, 64]\
+	 * at &fp[-64] is not fully initialized.	\
+	 */						\
+	call %[bpf_ringbuf_output];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_ringbuf_output),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to variable memory: 8 bytes no leak (init memory)")
+__success
+__naked void bytes_no_leak_init_memory(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r0 = 0;						\
+	r0 = 0;						\
+	*(u64*)(r10 - 64) = r0;				\
+	*(u64*)(r10 - 56) = r0;				\
+	*(u64*)(r10 - 48) = r0;				\
+	*(u64*)(r10 - 40) = r0;				\
+	*(u64*)(r10 - 32) = r0;				\
+	*(u64*)(r10 - 24) = r0;				\
+	*(u64*)(r10 - 16) = r0;				\
+	*(u64*)(r10 - 8) = r0;				\
+	r1 += -64;					\
+	r2 = 0;						\
+	r2 &= 32;					\
+	r2 += 32;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+	r1 = *(u64*)(r10 - 16);				\
+	exit;						\
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c
new file mode 100644
index 000000000000..74f5f9cd153d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_packet_access.c
@@ -0,0 +1,550 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_packet_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("xdp")
+__description("helper access to packet: test1, valid packet_ptr range")
+__success __retval(0)
+__naked void test1_valid_packet_ptr_range(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	r3 = r2;					\
+	r4 = 0;						\
+	call %[bpf_map_update_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_update_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test2, unchecked packet_ptr")
+__failure __msg("invalid access to packet")
+__naked void packet_test2_unchecked_packet_ptr(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test3, variable add")
+__success __retval(0)
+__naked void to_packet_test3_variable_add(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r4 = r2;					\
+	r4 += 8;					\
+	if r4 > r3 goto l0_%=;				\
+	r5 = *(u8*)(r2 + 0);				\
+	r4 = r2;					\
+	r4 += r5;					\
+	r5 = r4;					\
+	r5 += 8;					\
+	if r5 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	r2 = r4;					\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test4, packet_ptr with bad range")
+__failure __msg("invalid access to packet")
+__naked void packet_ptr_with_bad_range_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r4 = r2;					\
+	r4 += 4;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("helper access to packet: test5, packet_ptr with too short range")
+__failure __msg("invalid access to packet")
+__naked void ptr_with_too_short_range_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r2 += 1;					\
+	r4 = r2;					\
+	r4 += 7;					\
+	if r4 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test6, cls valid packet_ptr range")
+__success __retval(0)
+__naked void cls_valid_packet_ptr_range(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	r3 = r2;					\
+	r4 = 0;						\
+	call %[bpf_map_update_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_update_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test7, cls unchecked packet_ptr")
+__failure __msg("invalid access to packet")
+__naked void test7_cls_unchecked_packet_ptr(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test8, cls variable add")
+__success __retval(0)
+__naked void packet_test8_cls_variable_add(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r4 = r2;					\
+	r4 += 8;					\
+	if r4 > r3 goto l0_%=;				\
+	r5 = *(u8*)(r2 + 0);				\
+	r4 = r2;					\
+	r4 += r5;					\
+	r5 = r4;					\
+	r5 += 8;					\
+	if r5 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	r2 = r4;					\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test9, cls packet_ptr with bad range")
+__failure __msg("invalid access to packet")
+__naked void packet_ptr_with_bad_range_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r4 = r2;					\
+	r4 += 4;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test10, cls packet_ptr with too short range")
+__failure __msg("invalid access to packet")
+__naked void ptr_with_too_short_range_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r2 += 1;					\
+	r4 = r2;					\
+	r4 += 7;					\
+	if r4 > r3 goto l0_%=;				\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test11, cls unsuitable helper 1")
+__failure __msg("helper access to the packet")
+__naked void test11_cls_unsuitable_helper_1(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r3 = r6;					\
+	r3 += 7;					\
+	if r3 > r7 goto l0_%=;				\
+	r2 = 0;						\
+	r4 = 42;					\
+	r5 = 0;						\
+	call %[bpf_skb_store_bytes];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_skb_store_bytes),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test12, cls unsuitable helper 2")
+__failure __msg("helper access to the packet")
+__naked void test12_cls_unsuitable_helper_2(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r3 = r6;					\
+	r6 += 8;					\
+	if r6 > r7 goto l0_%=;				\
+	r2 = 0;						\
+	r4 = 4;						\
+	call %[bpf_skb_load_bytes];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test13, cls helper ok")
+__success __retval(0)
+__naked void packet_test13_cls_helper_ok(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test14, cls helper ok sub")
+__success __retval(0)
+__naked void test14_cls_helper_ok_sub(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 -= 4;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test15, cls helper fail sub")
+__failure __msg("invalid access to packet")
+__naked void test15_cls_helper_fail_sub(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 -= 12;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test16, cls helper fail range 1")
+__failure __msg("invalid access to packet")
+__naked void cls_helper_fail_range_1(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 8;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test17, cls helper fail range 2")
+__failure __msg("R2 min value is negative")
+__naked void cls_helper_fail_range_2(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = -9;					\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test18, cls helper fail range 3")
+__failure __msg("R2 min value is negative")
+__naked void cls_helper_fail_range_3(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__imm_0, ~0),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test19, cls helper range zero")
+__success __retval(0)
+__naked void test19_cls_helper_range_zero(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 0;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test20, pkt end as input")
+__failure __msg("R1 type=pkt_end expected=fp")
+__naked void test20_pkt_end_as_input(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r1 = r7;					\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("helper access to packet: test21, wrong reg")
+__failure __msg("invalid access to packet")
+__naked void to_packet_test21_wrong_reg(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r7 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r6 += 1;					\
+	r1 = r6;					\
+	r1 += 7;					\
+	if r1 > r7 goto l0_%=;				\
+	r2 = 4;						\
+	r3 = 0;						\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_csum_diff];				\
+	r0 = 0;						\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_csum_diff),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c
new file mode 100644
index 000000000000..059aa716e3d0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_restricted.c
@@ -0,0 +1,279 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_restricted.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct val {
+	int cnt;
+	struct bpf_spin_lock l;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct val);
+} map_spin_lock SEC(".maps");
+
+struct timer {
+	struct bpf_timer t;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct timer);
+} map_timer SEC(".maps");
+
+SEC("kprobe")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_KPROBE")
+__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
+__naked void in_bpf_prog_type_kprobe_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_coarse_ns];		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_coarse_ns)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
+__naked void in_bpf_prog_type_tracepoint_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_coarse_ns];		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_coarse_ns)
+	: __clobber_all);
+}
+
+SEC("perf_event")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_PERF_EVENT")
+__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
+__naked void bpf_prog_type_perf_event_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_coarse_ns];		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_coarse_ns)
+	: __clobber_all);
+}
+
+SEC("raw_tracepoint")
+__description("bpf_ktime_get_coarse_ns is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
+__failure __msg("program of this type cannot use helper bpf_ktime_get_coarse_ns")
+__naked void bpf_prog_type_raw_tracepoint_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_coarse_ns];		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_coarse_ns)
+	: __clobber_all);
+}
+
+SEC("kprobe")
+__description("bpf_timer_init isn restricted in BPF_PROG_TYPE_KPROBE")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void in_bpf_prog_type_kprobe_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_timer] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[map_timer] ll;				\
+	r3 = 1;						\
+l0_%=:	call %[bpf_timer_init];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_timer_init),
+	  __imm_addr(map_timer)
+	: __clobber_all);
+}
+
+SEC("perf_event")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_PERF_EVENT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void bpf_prog_type_perf_event_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_timer] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[map_timer] ll;				\
+	r3 = 1;						\
+l0_%=:	call %[bpf_timer_init];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_timer_init),
+	  __imm_addr(map_timer)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void in_bpf_prog_type_tracepoint_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_timer] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[map_timer] ll;				\
+	r3 = 1;						\
+l0_%=:	call %[bpf_timer_init];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_timer_init),
+	  __imm_addr(map_timer)
+	: __clobber_all);
+}
+
+SEC("raw_tracepoint")
+__description("bpf_timer_init is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_timer yet")
+__naked void bpf_prog_type_raw_tracepoint_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_timer] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[map_timer] ll;				\
+	r3 = 1;						\
+l0_%=:	call %[bpf_timer_init];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_timer_init),
+	  __imm_addr(map_timer)
+	: __clobber_all);
+}
+
+SEC("kprobe")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_KPROBE")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void in_bpf_prog_type_kprobe_3(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_spin_lock];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void in_bpf_prog_type_tracepoint_3(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_spin_lock];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("perf_event")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_PERF_EVENT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void bpf_prog_type_perf_event_3(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_spin_lock];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("raw_tracepoint")
+__description("bpf_spin_lock is forbidden in BPF_PROG_TYPE_RAW_TRACEPOINT")
+__failure __msg("tracing progs cannot use bpf_spin_lock yet")
+__naked void bpf_prog_type_raw_tracepoint_3(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_spin_lock];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_helper_value_access.c b/tools/testing/selftests/bpf/progs/verifier_helper_value_access.c
new file mode 100644
index 000000000000..886498b5e6f3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_helper_value_access.c
@@ -0,0 +1,1282 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/helper_value_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct other_val {
+	long long foo;
+	long long bar;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct other_val);
+} map_hash_16b SEC(".maps");
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("tracepoint")
+__description("helper access to map: full range")
+__success
+__naked void access_to_map_full_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[sizeof_test_val];			\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(sizeof_test_val, sizeof(struct test_val))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: partial range")
+__success
+__naked void access_to_map_partial_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+/* Call a function taking a pointer and a size which doesn't allow the size to
+ * be zero (i.e. bpf_trace_printk() declares the second argument to be
+ * ARG_CONST_SIZE, not ARG_CONST_SIZE_OR_ZERO). We attempt to pass zero for the
+ * size and expect to fail.
+ */
+SEC("tracepoint")
+__description("helper access to map: empty range")
+__failure __msg("R2 invalid zero-sized read: u64=[0,0]")
+__naked void access_to_map_empty_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = 0;						\
+	call %[bpf_trace_printk];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_trace_printk),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+/* Like the test above, but this time the size register is not known to be zero;
+ * its lower-bound is zero though, which is still unacceptable.
+ */
+SEC("tracepoint")
+__description("helper access to map: possibly-empty ange")
+__failure __msg("R2 invalid zero-sized read: u64=[0,4]")
+__naked void access_to_map_possibly_empty_range(void)
+{
+	asm volatile ("                                         \
+	r2 = r10;                                               \
+	r2 += -8;                                               \
+	r1 = 0;                                                 \
+	*(u64*)(r2 + 0) = r1;                                   \
+	r1 = %[map_hash_48b] ll;                                \
+	call %[bpf_map_lookup_elem];                            \
+	if r0 == 0 goto l0_%=;                                  \
+	r1 = r0;                                                \
+	/* Read an unknown value */                             \
+	r7 = *(u64*)(r0 + 0);                                   \
+	/* Make it small and positive, to avoid other errors */ \
+	r7 &= 4;                                                \
+	r2 = 0;                                                 \
+	r2 += r7;                                               \
+	call %[bpf_trace_printk];                               \
+l0_%=:	exit;                                               \
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_trace_printk),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: out-of-bound range")
+__failure __msg("invalid access to map value, value_size=48 off=0 size=56")
+__naked void map_out_of_bound_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) + 8)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: negative range")
+__failure __msg("R2 min value is negative")
+__naked void access_to_map_negative_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r2 = -8;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): full range")
+__success
+__naked void via_const_imm_full_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo)),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): partial range")
+__success
+__naked void via_const_imm_partial_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): empty range")
+__failure __msg("R2 invalid zero-sized read")
+__naked void via_const_imm_empty_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = 0;						\
+	call %[bpf_trace_printk];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_trace_printk),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): out-of-bound range")
+__failure __msg("invalid access to map value, value_size=48 off=4 size=52")
+__naked void imm_out_of_bound_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo) + 8),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): negative range (> adjustment)")
+__failure __msg("R2 min value is negative")
+__naked void const_imm_negative_range_adjustment_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = -8;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const imm): negative range (< adjustment)")
+__failure __msg("R2 min value is negative")
+__naked void const_imm_negative_range_adjustment_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r1 += %[test_val_foo];				\
+	r2 = -1;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): full range")
+__success
+__naked void via_const_reg_full_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = %[test_val_foo];				\
+	r1 += r3;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo)),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): partial range")
+__success
+__naked void via_const_reg_partial_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = %[test_val_foo];				\
+	r1 += r3;					\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): empty range")
+__failure __msg("R2 invalid zero-sized read")
+__naked void via_const_reg_empty_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = 0;						\
+	r1 += r3;					\
+	r2 = 0;						\
+	call %[bpf_trace_printk];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_trace_printk),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): out-of-bound range")
+__failure __msg("invalid access to map value, value_size=48 off=4 size=52")
+__naked void reg_out_of_bound_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = %[test_val_foo];				\
+	r1 += r3;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo) + 8),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): negative range (> adjustment)")
+__failure __msg("R2 min value is negative")
+__naked void const_reg_negative_range_adjustment_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = %[test_val_foo];				\
+	r1 += r3;					\
+	r2 = -8;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via const reg): negative range (< adjustment)")
+__failure __msg("R2 min value is negative")
+__naked void const_reg_negative_range_adjustment_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = %[test_val_foo];				\
+	r1 += r3;					\
+	r2 = -1;					\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via variable): full range")
+__success
+__naked void map_via_variable_full_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[test_val_foo] goto l0_%=;		\
+	r1 += r3;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo)),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via variable): partial range")
+__success
+__naked void map_via_variable_partial_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[test_val_foo] goto l0_%=;		\
+	r1 += r3;					\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via variable): empty range")
+__failure __msg("R2 invalid zero-sized read")
+__naked void map_via_variable_empty_range(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[test_val_foo] goto l0_%=;		\
+	r1 += r3;					\
+	r2 = 0;						\
+	call %[bpf_trace_printk];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_trace_printk),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via variable): no max check")
+__failure __msg("R1 unbounded memory access")
+__naked void via_variable_no_max_check_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	r1 += r3;					\
+	r2 = 1;						\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to adjusted map (via variable): wrong max check")
+__failure __msg("invalid access to map value, value_size=48 off=4 size=45")
+__naked void via_variable_wrong_max_check_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[test_val_foo] goto l0_%=;		\
+	r1 += r3;					\
+	r2 = %[__imm_0];				\
+	r3 = 0;						\
+	call %[bpf_probe_read_kernel];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_probe_read_kernel),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, sizeof(struct test_val) - offsetof(struct test_val, foo) + 1),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using <, good access")
+__success
+__naked void bounds_check_using_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 < 32 goto l1_%=;				\
+	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using <, bad access")
+__failure __msg("R1 unbounded memory access")
+__naked void bounds_check_using_bad_access_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 < 32 goto l1_%=;				\
+	r1 += r3;					\
+l0_%=:	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using <=, good access")
+__success
+__naked void bounds_check_using_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 <= 32 goto l1_%=;				\
+	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using <=, bad access")
+__failure __msg("R1 unbounded memory access")
+__naked void bounds_check_using_bad_access_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 <= 32 goto l1_%=;				\
+	r1 += r3;					\
+l0_%=:	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<, good access")
+__success
+__naked void check_using_s_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 s< 32 goto l1_%=;				\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s< 0 goto l2_%=;				\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<, good access 2")
+__success
+__naked void using_s_good_access_2_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 s< 32 goto l1_%=;				\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s< -3 goto l2_%=;				\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<, bad access")
+__failure __msg("R1 min value is negative")
+__naked void check_using_s_bad_access_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u64*)(r0 + 0);				\
+	if r3 s< 32 goto l1_%=;				\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s< -3 goto l2_%=;				\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<=, good access")
+__success
+__naked void check_using_s_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 s<= 32 goto l1_%=;			\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s<= 0 goto l2_%=;				\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<=, good access 2")
+__success
+__naked void using_s_good_access_2_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 s<= 32 goto l1_%=;			\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s<= -3 goto l2_%=;			\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("helper access to map: bounds check using s<=, bad access")
+__failure __msg("R1 min value is negative")
+__naked void check_using_s_bad_access_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	r3 = *(u64*)(r0 + 0);				\
+	if r3 s<= 32 goto l1_%=;			\
+l2_%=:	r0 = 0;						\
+l0_%=:	exit;						\
+l1_%=:	if r3 s<= -3 goto l2_%=;			\
+	r1 += r3;					\
+	r0 = 0;						\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map lookup helper access to map")
+__success
+__naked void lookup_helper_access_to_map(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map update helper access to map")
+__success
+__naked void update_helper_access_to_map(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r4 = 0;						\
+	r3 = r0;					\
+	r2 = r0;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_update_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_map_update_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map update helper access to map: wrong size")
+__failure __msg("invalid access to map value, value_size=8 off=0 size=16")
+__naked void access_to_map_wrong_size(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r4 = 0;						\
+	r3 = r0;					\
+	r2 = r0;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_update_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_map_update_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const imm)")
+__success
+__naked void adjusted_map_via_const_imm(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r2 += %[other_val_bar];				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(other_val_bar, offsetof(struct other_val, bar))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const imm): out-of-bound 1")
+__failure __msg("invalid access to map value, value_size=16 off=12 size=8")
+__naked void imm_out_of_bound_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r2 += %[__imm_0];				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__imm_0, sizeof(struct other_val) - 4)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const imm): out-of-bound 2")
+__failure __msg("invalid access to map value, value_size=16 off=-4 size=8")
+__naked void imm_out_of_bound_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r2 += -4;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const reg)")
+__success
+__naked void adjusted_map_via_const_reg(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = %[other_val_bar];				\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(other_val_bar, offsetof(struct other_val, bar))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const reg): out-of-bound 1")
+__failure __msg("invalid access to map value, value_size=16 off=12 size=8")
+__naked void reg_out_of_bound_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = %[__imm_0];				\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__imm_0, sizeof(struct other_val) - 4)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via const reg): out-of-bound 2")
+__failure __msg("invalid access to map value, value_size=16 off=-4 size=8")
+__naked void reg_out_of_bound_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = -4;					\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via variable)")
+__success
+__naked void to_adjusted_map_via_variable(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[other_val_bar] goto l0_%=;		\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(other_val_bar, offsetof(struct other_val, bar))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via variable): no max check")
+__failure
+__msg("R2 unbounded memory access, make sure to bounds check any such access")
+__naked void via_variable_no_max_check_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("map helper access to adjusted map (via variable): wrong max check")
+__failure __msg("invalid access to map value, value_size=16 off=9 size=8")
+__naked void via_variable_wrong_max_check_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r2 = r0;					\
+	r3 = *(u32*)(r0 + 0);				\
+	if r3 > %[__imm_0] goto l0_%=;			\
+	r2 += r3;					\
+	r1 = %[map_hash_16b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__imm_0, offsetof(struct other_val, bar) + 1)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_int_ptr.c b/tools/testing/selftests/bpf/progs/verifier_int_ptr.c
new file mode 100644
index 000000000000..59e34d558654
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_int_ptr.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/int_ptr.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("arg pointer to long uninitialized")
+__success
+__naked void arg_ptr_to_long_uninitialized(void)
+{
+	asm volatile ("					\
+	/* bpf_strtoul arg1 (buf) */			\
+	r7 = r10;					\
+	r7 += -8;					\
+	r0 = 0x00303036;				\
+	*(u64*)(r7 + 0) = r0;				\
+	r1 = r7;					\
+	/* bpf_strtoul arg2 (buf_len) */		\
+	r2 = 4;						\
+	/* bpf_strtoul arg3 (flags) */			\
+	r3 = 0;						\
+	/* bpf_strtoul arg4 (res) */			\
+	r7 += -8;					\
+	r4 = r7;					\
+	/* bpf_strtoul() */				\
+	call %[bpf_strtoul];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_strtoul)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("arg pointer to long half-uninitialized")
+__success
+__retval(0)
+__naked void ptr_to_long_half_uninitialized(void)
+{
+	asm volatile ("					\
+	/* bpf_strtoul arg1 (buf) */			\
+	r7 = r10;					\
+	r7 += -8;					\
+	r0 = 0x00303036;				\
+	*(u64*)(r7 + 0) = r0;				\
+	r1 = r7;					\
+	/* bpf_strtoul arg2 (buf_len) */		\
+	r2 = 4;						\
+	/* bpf_strtoul arg3 (flags) */			\
+	r3 = 0;						\
+	/* bpf_strtoul arg4 (res) */			\
+	r7 += -8;					\
+	*(u32*)(r7 + 0) = r0;				\
+	r4 = r7;					\
+	/* bpf_strtoul() */				\
+	call %[bpf_strtoul];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_strtoul)
+	: __clobber_all);
+}
+
+SEC("cgroup/sysctl")
+__description("arg pointer to long misaligned")
+__failure __msg("misaligned stack access off 0+-20+0 size 8")
+__naked void arg_ptr_to_long_misaligned(void)
+{
+	asm volatile ("					\
+	/* bpf_strtoul arg1 (buf) */			\
+	r7 = r10;					\
+	r7 += -8;					\
+	r0 = 0x00303036;				\
+	*(u64*)(r7 + 0) = r0;				\
+	r1 = r7;					\
+	/* bpf_strtoul arg2 (buf_len) */		\
+	r2 = 4;						\
+	/* bpf_strtoul arg3 (flags) */			\
+	r3 = 0;						\
+	/* bpf_strtoul arg4 (res) */			\
+	r7 += -12;					\
+	r0 = 0;						\
+	*(u32*)(r7 + 0) = r0;				\
+	*(u64*)(r7 + 4) = r0;				\
+	r4 = r7;					\
+	/* bpf_strtoul() */				\
+	call %[bpf_strtoul];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_strtoul)
+	: __clobber_all);
+}
+
+SEC("cgroup/sysctl")
+__description("arg pointer to long size < sizeof(long)")
+__failure __msg("invalid write to stack R4 off=-4 size=8")
+__naked void to_long_size_sizeof_long(void)
+{
+	asm volatile ("					\
+	/* bpf_strtoul arg1 (buf) */			\
+	r7 = r10;					\
+	r7 += -16;					\
+	r0 = 0x00303036;				\
+	*(u64*)(r7 + 0) = r0;				\
+	r1 = r7;					\
+	/* bpf_strtoul arg2 (buf_len) */		\
+	r2 = 4;						\
+	/* bpf_strtoul arg3 (flags) */			\
+	r3 = 0;						\
+	/* bpf_strtoul arg4 (res) */			\
+	r7 += 12;					\
+	*(u32*)(r7 + 0) = r0;				\
+	r4 = r7;					\
+	/* bpf_strtoul() */				\
+	call %[bpf_strtoul];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_strtoul)
+	: __clobber_all);
+}
+
+SEC("cgroup/sysctl")
+__description("arg pointer to long initialized")
+__success
+__naked void arg_ptr_to_long_initialized(void)
+{
+	asm volatile ("					\
+	/* bpf_strtoul arg1 (buf) */			\
+	r7 = r10;					\
+	r7 += -8;					\
+	r0 = 0x00303036;				\
+	*(u64*)(r7 + 0) = r0;				\
+	r1 = r7;					\
+	/* bpf_strtoul arg2 (buf_len) */		\
+	r2 = 4;						\
+	/* bpf_strtoul arg3 (flags) */			\
+	r3 = 0;						\
+	/* bpf_strtoul arg4 (res) */			\
+	r7 += -8;					\
+	*(u64*)(r7 + 0) = r0;				\
+	r4 = r7;					\
+	/* bpf_strtoul() */				\
+	call %[bpf_strtoul];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_strtoul)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c b/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c
new file mode 100644
index 000000000000..75dd922e4e9f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_iterating_callbacks.c
@@ -0,0 +1,786 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 8);
+	__type(key, __u32);
+	__type(value, __u64);
+} map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_USER_RINGBUF);
+	__uint(max_entries, 8);
+} ringbuf SEC(".maps");
+
+struct vm_area_struct;
+struct bpf_map;
+
+struct buf_context {
+	char *buf;
+};
+
+struct num_context {
+	__u64 i;
+	__u64 j;
+};
+
+__u8 choice_arr[2] = { 0, 1 };
+
+static int unsafe_on_2nd_iter_cb(__u32 idx, struct buf_context *ctx)
+{
+	if (idx == 0) {
+		ctx->buf = (char *)(0xDEAD);
+		return 0;
+	}
+
+	if (bpf_probe_read_user(ctx->buf, 8, (void *)(0xBADC0FFEE)))
+		return 1;
+
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("R1 type=scalar expected=fp")
+int unsafe_on_2nd_iter(void *unused)
+{
+	char buf[4];
+	struct buf_context loop_ctx = { .buf = buf };
+
+	bpf_loop(100, unsafe_on_2nd_iter_cb, &loop_ctx, 0);
+	return 0;
+}
+
+static int unsafe_on_zero_iter_cb(__u32 idx, struct num_context *ctx)
+{
+	ctx->i = 0;
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid access to map value, value_size=2 off=32 size=1")
+int unsafe_on_zero_iter(void *unused)
+{
+	struct num_context loop_ctx = { .i = 32 };
+
+	bpf_loop(100, unsafe_on_zero_iter_cb, &loop_ctx, 0);
+	return choice_arr[loop_ctx.i];
+}
+
+static int widening_cb(__u32 idx, struct num_context *ctx)
+{
+	++ctx->i;
+	return 0;
+}
+
+SEC("?raw_tp")
+__success
+int widening(void *unused)
+{
+	struct num_context loop_ctx = { .i = 0, .j = 1 };
+
+	bpf_loop(100, widening_cb, &loop_ctx, 0);
+	/* loop_ctx.j is not changed during callback iteration,
+	 * verifier should not apply widening to it.
+	 */
+	return choice_arr[loop_ctx.j];
+}
+
+static int loop_detection_cb(__u32 idx, struct num_context *ctx)
+{
+	for (;;) {}
+	return 0;
+}
+
+SEC("?raw_tp")
+__failure __msg("infinite loop detected")
+int loop_detection(void *unused)
+{
+	struct num_context loop_ctx = { .i = 0 };
+
+	bpf_loop(100, loop_detection_cb, &loop_ctx, 0);
+	return 0;
+}
+
+static __always_inline __u64 oob_state_machine(struct num_context *ctx)
+{
+	switch (ctx->i) {
+	case 0:
+		ctx->i = 1;
+		break;
+	case 1:
+		ctx->i = 32;
+		break;
+	}
+	return 0;
+}
+
+static __u64 for_each_map_elem_cb(struct bpf_map *map, __u32 *key, __u64 *val, void *data)
+{
+	return oob_state_machine(data);
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid access to map value, value_size=2 off=32 size=1")
+int unsafe_for_each_map_elem(void *unused)
+{
+	struct num_context loop_ctx = { .i = 0 };
+
+	bpf_for_each_map_elem(&map, for_each_map_elem_cb, &loop_ctx, 0);
+	return choice_arr[loop_ctx.i];
+}
+
+static __u64 ringbuf_drain_cb(struct bpf_dynptr *dynptr, void *data)
+{
+	return oob_state_machine(data);
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid access to map value, value_size=2 off=32 size=1")
+int unsafe_ringbuf_drain(void *unused)
+{
+	struct num_context loop_ctx = { .i = 0 };
+
+	bpf_user_ringbuf_drain(&ringbuf, ringbuf_drain_cb, &loop_ctx, 0);
+	return choice_arr[loop_ctx.i];
+}
+
+static __u64 find_vma_cb(struct task_struct *task, struct vm_area_struct *vma, void *data)
+{
+	return oob_state_machine(data);
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid access to map value, value_size=2 off=32 size=1")
+int unsafe_find_vma(void *unused)
+{
+	struct task_struct *task = bpf_get_current_task_btf();
+	struct num_context loop_ctx = { .i = 0 };
+
+	bpf_find_vma(task, 0, find_vma_cb, &loop_ctx, 0);
+	return choice_arr[loop_ctx.i];
+}
+
+static int iter_limit_cb(__u32 idx, struct num_context *ctx)
+{
+	ctx->i++;
+	return 0;
+}
+
+SEC("?raw_tp")
+__success
+int bpf_loop_iter_limit_ok(void *unused)
+{
+	struct num_context ctx = { .i = 0 };
+
+	bpf_loop(1, iter_limit_cb, &ctx, 0);
+	return choice_arr[ctx.i];
+}
+
+SEC("?raw_tp")
+__failure __msg("invalid access to map value, value_size=2 off=2 size=1")
+int bpf_loop_iter_limit_overflow(void *unused)
+{
+	struct num_context ctx = { .i = 0 };
+
+	bpf_loop(2, iter_limit_cb, &ctx, 0);
+	return choice_arr[ctx.i];
+}
+
+static int iter_limit_level2a_cb(__u32 idx, struct num_context *ctx)
+{
+	ctx->i += 100;
+	return 0;
+}
+
+static int iter_limit_level2b_cb(__u32 idx, struct num_context *ctx)
+{
+	ctx->i += 10;
+	return 0;
+}
+
+static int iter_limit_level1_cb(__u32 idx, struct num_context *ctx)
+{
+	ctx->i += 1;
+	bpf_loop(1, iter_limit_level2a_cb, ctx, 0);
+	bpf_loop(1, iter_limit_level2b_cb, ctx, 0);
+	return 0;
+}
+
+/* Check that path visiting every callback function once had been
+ * reached by verifier. Variables 'ctx{1,2}i' below serve as flags,
+ * with each decimal digit corresponding to a callback visit marker.
+ */
+SEC("socket")
+__success __retval(111111)
+int bpf_loop_iter_limit_nested(void *unused)
+{
+	struct num_context ctx1 = { .i = 0 };
+	struct num_context ctx2 = { .i = 0 };
+	__u64 a, b, c;
+
+	bpf_loop(1, iter_limit_level1_cb, &ctx1, 0);
+	bpf_loop(1, iter_limit_level1_cb, &ctx2, 0);
+	a = ctx1.i;
+	b = ctx2.i;
+	/* Force 'ctx1.i' and 'ctx2.i' precise. */
+	c = choice_arr[(a + b) % 2];
+	/* This makes 'c' zero, but neither clang nor verifier know it. */
+	c /= 10;
+	/* Make sure that verifier does not visit 'impossible' states:
+	 * enumerate all possible callback visit masks.
+	 */
+	if (a != 0 && a != 1 && a != 11 && a != 101 && a != 111 &&
+	    b != 0 && b != 1 && b != 11 && b != 101 && b != 111)
+		asm volatile ("r0 /= 0;" ::: "r0");
+	return 1000 * a + b + c;
+}
+
+struct iter_limit_bug_ctx {
+	__u64 a;
+	__u64 b;
+	__u64 c;
+};
+
+static __naked void iter_limit_bug_cb(void)
+{
+	/* This is the same as C code below, but written
+	 * in assembly to control which branches are fall-through.
+	 *
+	 *   switch (bpf_get_prandom_u32()) {
+	 *   case 1:  ctx->a = 42; break;
+	 *   case 2:  ctx->b = 42; break;
+	 *   default: ctx->c = 42; break;
+	 *   }
+	 */
+	asm volatile (
+	"r9 = r2;"
+	"call %[bpf_get_prandom_u32];"
+	"r1 = r0;"
+	"r2 = 42;"
+	"r0 = 0;"
+	"if r1 == 0x1 goto 1f;"
+	"if r1 == 0x2 goto 2f;"
+	"*(u64 *)(r9 + 16) = r2;"
+	"exit;"
+	"1: *(u64 *)(r9 + 0) = r2;"
+	"exit;"
+	"2: *(u64 *)(r9 + 8) = r2;"
+	"exit;"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all
+	);
+}
+
+int tmp_var;
+SEC("socket")
+__failure __msg("infinite loop detected at insn 2")
+__naked void jgt_imm64_and_may_goto(void)
+{
+	asm volatile ("			\
+	r0 = %[tmp_var] ll;		\
+l0_%=:	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short -3; /* off -3 */		\
+	.long 0; /* imm */		\
+	if r0 > 10 goto l0_%=;		\
+	r0 = 0;				\
+	exit;				\
+"	:: __imm_addr(tmp_var)
+	: __clobber_all);
+}
+
+SEC("socket")
+__failure __msg("infinite loop detected at insn 1")
+__naked void may_goto_self(void)
+{
+	asm volatile ("			\
+	r0 = *(u32 *)(r10 - 4);		\
+l0_%=:	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short -1; /* off -1 */		\
+	.long 0; /* imm */		\
+	if r0 > 10 goto l0_%=;		\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__success __retval(0)
+__naked void may_goto_neg_off(void)
+{
+	asm volatile ("			\
+	r0 = *(u32 *)(r10 - 4);		\
+	goto l0_%=;			\
+	goto l1_%=;			\
+l0_%=:	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short -2; /* off -2 */		\
+	.long 0; /* imm */		\
+	if r0 > 10 goto l0_%=;		\
+l1_%=:	r0 = 0;				\
+	exit;				\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__failure
+__flag(BPF_F_TEST_STATE_FREQ)
+int iter_limit_bug(struct __sk_buff *skb)
+{
+	struct iter_limit_bug_ctx ctx = { 7, 7, 7 };
+
+	bpf_loop(2, iter_limit_bug_cb, &ctx, 0);
+
+	/* This is the same as C code below,
+	 * written in assembly to guarantee checks order.
+	 *
+	 *   if (ctx.a == 42 && ctx.b == 42 && ctx.c == 7)
+	 *     asm volatile("r1 /= 0;":::"r1");
+	 */
+	asm volatile (
+	"r1 = *(u64 *)%[ctx_a];"
+	"if r1 != 42 goto 1f;"
+	"r1 = *(u64 *)%[ctx_b];"
+	"if r1 != 42 goto 1f;"
+	"r1 = *(u64 *)%[ctx_c];"
+	"if r1 != 7 goto 1f;"
+	"r1 /= 0;"
+	"1:"
+	:
+	: [ctx_a]"m"(ctx.a),
+	  [ctx_b]"m"(ctx.b),
+	  [ctx_c]"m"(ctx.c)
+	: "r1"
+	);
+	return 0;
+}
+
+SEC("socket")
+__success __retval(0)
+__naked void ja_and_may_goto(void)
+{
+	asm volatile ("			\
+l0_%=:	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 1; /* off 1 */		\
+	.long 0; /* imm */		\
+	goto l0_%=;			\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_common);
+}
+
+SEC("socket")
+__success __retval(0)
+__naked void ja_and_may_goto2(void)
+{
+	asm volatile ("			\
+l0_%=:	r0 = 0;				\
+	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 1; /* off 1 */		\
+	.long 0; /* imm */		\
+	goto l0_%=;			\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_common);
+}
+
+SEC("socket")
+__success __retval(0)
+__naked void jlt_and_may_goto(void)
+{
+	asm volatile ("			\
+l0_%=:	call %[bpf_jiffies64];		\
+	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 1; /* off 1 */		\
+	.long 0; /* imm */		\
+	if r0 < 10 goto l0_%=;		\
+	r0 = 0;				\
+	exit;				\
+"	:: __imm(bpf_jiffies64)
+	: __clobber_all);
+}
+
+#ifdef CAN_USE_GOTOL
+SEC("socket")
+__success __retval(0)
+__naked void gotol_and_may_goto(void)
+{
+	asm volatile ("			\
+l0_%=:	r0 = 0;				\
+	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 1; /* off 1 */		\
+	.long 0; /* imm */		\
+	gotol l0_%=;			\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_common);
+}
+#endif
+
+SEC("socket")
+__success __retval(0)
+__naked void ja_and_may_goto_subprog(void)
+{
+	asm volatile ("			\
+	call subprog_with_may_goto;	\
+	exit;				\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __used
+void subprog_with_may_goto(void)
+{
+	asm volatile ("			\
+l0_%=:	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 1; /* off 1 */		\
+	.long 0; /* imm */		\
+	goto l0_%=;			\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_all);
+}
+
+#define ARR_SZ 1000000
+int zero;
+char arr[ARR_SZ];
+
+SEC("socket")
+__success __retval(0xd495cdc0)
+int cond_break1(const void *ctx)
+{
+	unsigned long i;
+	unsigned int sum = 0;
+
+	for (i = zero; i < ARR_SZ && can_loop; i++)
+		sum += i;
+	for (i = zero; i < ARR_SZ; i++) {
+		barrier_var(i);
+		sum += i + arr[i];
+		cond_break;
+	}
+
+	return sum;
+}
+
+SEC("socket")
+__success __retval(999000000)
+int cond_break2(const void *ctx)
+{
+	int i, j;
+	int sum = 0;
+
+	for (i = zero; i < 1000 && can_loop; i++)
+		for (j = zero; j < 1000; j++) {
+			sum += i + j;
+			cond_break;
+	}
+	return sum;
+}
+
+static __noinline int loop(void)
+{
+	int i, sum = 0;
+
+	for (i = zero; i <= 1000000 && can_loop; i++)
+		sum += i;
+
+	return sum;
+}
+
+SEC("socket")
+__success __retval(0x6a5a2920)
+int cond_break3(const void *ctx)
+{
+	return loop();
+}
+
+SEC("socket")
+__success __retval(1)
+int cond_break4(const void *ctx)
+{
+	int cnt = zero;
+
+	for (;;) {
+		/* should eventually break out of the loop */
+		cond_break;
+		cnt++;
+	}
+	/* if we looped a bit, it's a success */
+	return cnt > 1 ? 1 : 0;
+}
+
+static __noinline int static_subprog(void)
+{
+	int cnt = zero;
+
+	for (;;) {
+		cond_break;
+		cnt++;
+	}
+
+	return cnt;
+}
+
+SEC("socket")
+__success __retval(1)
+int cond_break5(const void *ctx)
+{
+	int cnt1 = zero, cnt2;
+
+	for (;;) {
+		cond_break;
+		cnt1++;
+	}
+
+	cnt2 = static_subprog();
+
+	/* main and subprog have to loop a bit */
+	return cnt1 > 1 && cnt2 > 1 ? 1 : 0;
+}
+
+#define ARR2_SZ 1000
+SEC(".data.arr2")
+char arr2[ARR2_SZ];
+
+SEC("socket")
+__success __flag(BPF_F_TEST_STATE_FREQ)
+int loop_inside_iter(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, sum = 0;
+	__u64 i = 0;
+
+	bpf_iter_num_new(&it, 0, ARR2_SZ);
+	while ((v = bpf_iter_num_next(&it))) {
+		if (i < ARR2_SZ)
+			sum += arr2[i++];
+	}
+	bpf_iter_num_destroy(&it);
+	return sum;
+}
+
+SEC("socket")
+__success __flag(BPF_F_TEST_STATE_FREQ)
+int loop_inside_iter_signed(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, sum = 0;
+	long i = 0;
+
+	bpf_iter_num_new(&it, 0, ARR2_SZ);
+	while ((v = bpf_iter_num_next(&it))) {
+		if (i < ARR2_SZ && i >= 0)
+			sum += arr2[i++];
+	}
+	bpf_iter_num_destroy(&it);
+	return sum;
+}
+
+volatile const int limit = ARR2_SZ;
+
+SEC("socket")
+__success __flag(BPF_F_TEST_STATE_FREQ)
+int loop_inside_iter_volatile_limit(const void *ctx)
+{
+	struct bpf_iter_num it;
+	int *v, sum = 0;
+	__u64 i = 0;
+
+	bpf_iter_num_new(&it, 0, ARR2_SZ);
+	while ((v = bpf_iter_num_next(&it))) {
+		if (i < limit)
+			sum += arr2[i++];
+	}
+	bpf_iter_num_destroy(&it);
+	return sum;
+}
+
+#define ARR_LONG_SZ 1000
+
+SEC(".data.arr_long")
+long arr_long[ARR_LONG_SZ];
+
+SEC("socket")
+__success
+int test1(const void *ctx)
+{
+	long i;
+
+	for (i = 0; i < ARR_LONG_SZ && can_loop; i++)
+		arr_long[i] = i;
+	return 0;
+}
+
+SEC("socket")
+__success
+int test2(const void *ctx)
+{
+	__u64 i;
+
+	for (i = zero; i < ARR_LONG_SZ && can_loop; i++) {
+		barrier_var(i);
+		arr_long[i] = i;
+	}
+	return 0;
+}
+
+SEC(".data.arr_foo")
+struct {
+	int a;
+	int b;
+} arr_foo[ARR_LONG_SZ];
+
+SEC("socket")
+__success
+int test3(const void *ctx)
+{
+	__u64 i;
+
+	for (i = zero; i < ARR_LONG_SZ && can_loop; i++) {
+		barrier_var(i);
+		arr_foo[i].a = i;
+		arr_foo[i].b = i;
+	}
+	return 0;
+}
+
+SEC("socket")
+__success
+int test4(const void *ctx)
+{
+	long i;
+
+	for (i = zero + ARR_LONG_SZ - 1; i < ARR_LONG_SZ && i >= 0 && can_loop; i--) {
+		barrier_var(i);
+		arr_foo[i].a = i;
+		arr_foo[i].b = i;
+	}
+	return 0;
+}
+
+char buf[10] SEC(".data.buf");
+
+SEC("socket")
+__description("check add const")
+__success
+__naked void check_add_const(void)
+{
+	/* typical LLVM generated loop with may_goto */
+	asm volatile ("			\
+	call %[bpf_ktime_get_ns];	\
+	if r0 > 9 goto l1_%=;		\
+l0_%=:	r1 = %[buf];			\
+	r2 = r0;			\
+	r1 += r2;			\
+	r3 = *(u8 *)(r1 +0);		\
+	.byte 0xe5; /* may_goto */	\
+	.byte 0; /* regs */		\
+	.short 4; /* off of l1_%=: */	\
+	.long 0; /* imm */		\
+	r0 = r2;			\
+	r0 += 1;			\
+	if r2 < 9 goto l0_%=;		\
+	exit;				\
+l1_%=:	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm_ptr(buf)
+	: __clobber_common);
+}
+
+SEC("socket")
+__failure
+__msg("*(u8 *)(r7 +0) = r0")
+__msg("invalid access to map value, value_size=10 off=10 size=1")
+__naked void check_add_const_3regs(void)
+{
+	asm volatile (
+	"r6 = %[buf];"
+	"r7 = %[buf];"
+	"call %[bpf_ktime_get_ns];"
+	"r1 = r0;"              /* link r0.id == r1.id == r2.id */
+	"r2 = r0;"
+	"r1 += 1;"              /* r1 == r0+1 */
+	"r2 += 2;"              /* r2 == r0+2 */
+	"if r0 > 8 goto 1f;"    /* r0 range [0, 8]  */
+	"r6 += r1;"             /* r1 range [1, 9]  */
+	"r7 += r2;"             /* r2 range [2, 10] */
+	"*(u8 *)(r6 +0) = r0;"  /* safe, within bounds   */
+	"*(u8 *)(r7 +0) = r0;"  /* unsafe, out of bounds */
+	"1: exit;"
+	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm_ptr(buf)
+	: __clobber_common);
+}
+
+SEC("socket")
+__failure
+__msg("*(u8 *)(r8 -1) = r0")
+__msg("invalid access to map value, value_size=10 off=10 size=1")
+__naked void check_add_const_3regs_2if(void)
+{
+	asm volatile (
+	"r6 = %[buf];"
+	"r7 = %[buf];"
+	"r8 = %[buf];"
+	"call %[bpf_ktime_get_ns];"
+	"if r0 < 2 goto 1f;"
+	"r1 = r0;"              /* link r0.id == r1.id == r2.id */
+	"r2 = r0;"
+	"r1 += 1;"              /* r1 == r0+1 */
+	"r2 += 2;"              /* r2 == r0+2 */
+	"if r2 > 11 goto 1f;"   /* r2 range [0, 11] -> r0 range [-2, 9]; r1 range [-1, 10] */
+	"if r0 s< 0 goto 1f;"   /* r0 range [0, 9] -> r1 range [1, 10]; r2 range [2, 11]; */
+	"r6 += r0;"             /* r0 range [0, 9]  */
+	"r7 += r1;"             /* r1 range [1, 10] */
+	"r8 += r2;"             /* r2 range [2, 11] */
+	"*(u8 *)(r6 +0) = r0;"  /* safe, within bounds   */
+	"*(u8 *)(r7 -1) = r0;"  /* safe */
+	"*(u8 *)(r8 -1) = r0;"  /* unsafe */
+	"1: exit;"
+	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm_ptr(buf)
+	: __clobber_common);
+}
+
+SEC("socket")
+__failure
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void check_add_const_regsafe_off(void)
+{
+	asm volatile (
+	"r8 = %[buf];"
+	"call %[bpf_ktime_get_ns];"
+	"r6 = r0;"
+	"call %[bpf_ktime_get_ns];"
+	"r7 = r0;"
+	"call %[bpf_ktime_get_ns];"
+	"r1 = r0;"              /* same ids for r1 and r0 */
+	"if r6 > r7 goto 1f;"   /* this jump can't be predicted */
+	"r1 += 1;"              /* r1.off == +1 */
+	"goto 2f;"
+	"1: r1 += 100;"         /* r1.off == +100 */
+	"goto +0;"              /* verify r1.off in regsafe() after this insn */
+	"2: if r0 > 8 goto 3f;" /* r0 range [0,8], r1 range either [1,9] or [100,108]*/
+	"r8 += r1;"
+	"*(u8 *)(r8 +0) = r0;"  /* potentially unsafe, buf size is 10 */
+	"3: exit;"
+	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm_ptr(buf)
+	: __clobber_common);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_jeq_infer_not_null.c b/tools/testing/selftests/bpf/progs/verifier_jeq_infer_not_null.c
new file mode 100644
index 000000000000..bf16b00502f2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_jeq_infer_not_null.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/jeq_infer_not_null.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} map_xskmap SEC(".maps");
+
+/* This is equivalent to the following program:
+ *
+ *   r6 = skb->sk;
+ *   r7 = sk_fullsock(r6);
+ *   r0 = sk_fullsock(r6);
+ *   if (r0 == 0) return 0;    (a)
+ *   if (r0 != r7) return 0;   (b)
+ *   *r7->type;                (c)
+ *   return 0;
+ *
+ * It is safe to dereference r7 at point (c), because of (a) and (b).
+ * The test verifies that relation r0 == r7 is propagated from (b) to (c).
+ */
+SEC("cgroup/skb")
+__description("jne/jeq infer not null, PTR_TO_SOCKET_OR_NULL -> PTR_TO_SOCKET for JNE false branch")
+__success __failure_unpriv __msg_unpriv("R7 pointer comparison")
+__retval(0)
+__naked void socket_for_jne_false_branch(void)
+{
+	asm volatile ("					\
+	/* r6 = skb->sk; */				\
+	r6 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	/* if (r6 == 0) return 0; */			\
+	if r6 == 0 goto l0_%=;				\
+	/* r7 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	r7 = r0;					\
+	/* r0 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	/* if (r0 == null) return 0; */			\
+	if r0 == 0 goto l0_%=;				\
+	/* if (r0 == r7) r0 = *(r7->type); */		\
+	if r0 != r7 goto l0_%=;		/* Use ! JNE ! */\
+	r0 = *(u32*)(r7 + %[bpf_sock_type]);		\
+l0_%=:	/* return 0 */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+/* Same as above, but verify that another branch of JNE still
+ * prohibits access to PTR_MAYBE_NULL.
+ */
+SEC("cgroup/skb")
+__description("jne/jeq infer not null, PTR_TO_SOCKET_OR_NULL unchanged for JNE true branch")
+__failure __msg("R7 invalid mem access 'sock_or_null'")
+__failure_unpriv __msg_unpriv("R7 pointer comparison")
+__naked void unchanged_for_jne_true_branch(void)
+{
+	asm volatile ("					\
+	/* r6 = skb->sk */				\
+	r6 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	/* if (r6 == 0) return 0; */			\
+	if r6 == 0 goto l0_%=;				\
+	/* r7 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	r7 = r0;					\
+	/* r0 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	/* if (r0 == null) return 0; */			\
+	if r0 != 0 goto l0_%=;				\
+	/* if (r0 == r7) return 0; */			\
+	if r0 != r7 goto l1_%=;		/* Use ! JNE ! */\
+	goto l0_%=;					\
+l1_%=:	/* r0 = *(r7->type); */				\
+	r0 = *(u32*)(r7 + %[bpf_sock_type]);		\
+l0_%=:	/* return 0 */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+/* Same as a first test, but not null should be inferred for JEQ branch */
+SEC("cgroup/skb")
+__description("jne/jeq infer not null, PTR_TO_SOCKET_OR_NULL -> PTR_TO_SOCKET for JEQ true branch")
+__success __failure_unpriv __msg_unpriv("R7 pointer comparison")
+__retval(0)
+__naked void socket_for_jeq_true_branch(void)
+{
+	asm volatile ("					\
+	/* r6 = skb->sk; */				\
+	r6 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	/* if (r6 == null) return 0; */			\
+	if r6 == 0 goto l0_%=;				\
+	/* r7 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	r7 = r0;					\
+	/* r0 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	/* if (r0 == null) return 0; */			\
+	if r0 == 0 goto l0_%=;				\
+	/* if (r0 != r7) return 0; */			\
+	if r0 == r7 goto l1_%=;		/* Use ! JEQ ! */\
+	goto l0_%=;					\
+l1_%=:	/* r0 = *(r7->type); */				\
+	r0 = *(u32*)(r7 + %[bpf_sock_type]);		\
+l0_%=:	/* return 0; */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+/* Same as above, but verify that another branch of JNE still
+ * prohibits access to PTR_MAYBE_NULL.
+ */
+SEC("cgroup/skb")
+__description("jne/jeq infer not null, PTR_TO_SOCKET_OR_NULL unchanged for JEQ false branch")
+__failure __msg("R7 invalid mem access 'sock_or_null'")
+__failure_unpriv __msg_unpriv("R7 pointer comparison")
+__naked void unchanged_for_jeq_false_branch(void)
+{
+	asm volatile ("					\
+	/* r6 = skb->sk; */				\
+	r6 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	/* if (r6 == null) return 0; */			\
+	if r6 == 0 goto l0_%=;				\
+	/* r7 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	r7 = r0;					\
+	/* r0 = sk_fullsock(skb); */			\
+	r1 = r6;					\
+	call %[bpf_sk_fullsock];			\
+	/* if (r0 == null) return 0; */			\
+	if r0 == 0 goto l0_%=;				\
+	/* if (r0 != r7) r0 = *(r7->type); */		\
+	if r0 == r7 goto l0_%=;		/* Use ! JEQ ! */\
+	r0 = *(u32*)(r7 + %[bpf_sock_type]);		\
+l0_%=:	/* return 0; */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+/* Maps are treated in a different branch of `mark_ptr_not_null_reg`,
+ * so separate test for maps case.
+ */
+SEC("xdp")
+__description("jne/jeq infer not null, PTR_TO_MAP_VALUE_OR_NULL -> PTR_TO_MAP_VALUE")
+__success __retval(0)
+__naked void null_ptr_to_map_value(void)
+{
+	asm volatile ("					\
+	/* r9 = &some stack to use as key */		\
+	r1 = 0;						\
+	*(u32*)(r10 - 8) = r1;				\
+	r9 = r10;					\
+	r9 += -8;					\
+	/* r8 = process local map */			\
+	r8 = %[map_xskmap] ll;				\
+	/* r6 = map_lookup_elem(r8, r9); */		\
+	r1 = r8;					\
+	r2 = r9;					\
+	call %[bpf_map_lookup_elem];			\
+	r6 = r0;					\
+	/* r7 = map_lookup_elem(r8, r9); */		\
+	r1 = r8;					\
+	r2 = r9;					\
+	call %[bpf_map_lookup_elem];			\
+	r7 = r0;					\
+	/* if (r6 == 0) return 0; */			\
+	if r6 == 0 goto l0_%=;				\
+	/* if (r6 != r7) return 0; */			\
+	if r6 != r7 goto l0_%=;				\
+	/* read *r7; */					\
+	r0 = *(u32*)(r7 + %[bpf_xdp_sock_queue_id]);	\
+l0_%=:	/* return 0; */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_xskmap),
+	  __imm_const(bpf_xdp_sock_queue_id, offsetof(struct bpf_xdp_sock, queue_id))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_jit_convergence.c b/tools/testing/selftests/bpf/progs/verifier_jit_convergence.c
new file mode 100644
index 000000000000..9f3f2b7db450
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_jit_convergence.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct value_t {
+	long long a[32];
+};
+
+struct {
+        __uint(type, BPF_MAP_TYPE_HASH);
+        __uint(max_entries, 1);
+        __type(key, long long);
+        __type(value, struct value_t);
+} map_hash SEC(".maps");
+
+SEC("socket")
+__description("bpf_jit_convergence je <-> jmp")
+__success __retval(0)
+__arch_x86_64
+__jited("	pushq	%rbp")
+__naked void btf_jit_convergence_je_jmp(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"if r0 == 0 goto l20_%=;"
+	"if r0 == 1 goto l21_%=;"
+	"if r0 == 2 goto l22_%=;"
+	"if r0 == 3 goto l23_%=;"
+	"if r0 == 4 goto l24_%=;"
+	"call %[bpf_get_prandom_u32];"
+	"call %[bpf_get_prandom_u32];"
+"l20_%=:"
+"l21_%=:"
+"l22_%=:"
+"l23_%=:"
+"l24_%=:"
+	"r1 = 0;"
+	"*(u64 *)(r10 - 8) = r1;"
+	"r2 = r10;"
+	"r2 += -8;"
+	"r1 = %[map_hash] ll;"
+	"call %[bpf_map_lookup_elem];"
+	"if r0 == 0 goto l1_%=;"
+	"r6 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r5 = r6;"
+	"if r0 != 0x0 goto l12_%=;"
+	"call %[bpf_get_prandom_u32];"
+	"r1 = r0;"
+	"r2 = r6;"
+	"if r1 == 0x0 goto l0_%=;"
+"l9_%=:"
+	"r2 = *(u64 *)(r6 + 0x0);"
+	"r2 += 0x1;"
+	"*(u64 *)(r6 + 0x0) = r2;"
+	"goto l1_%=;"
+"l12_%=:"
+	"r1 = r7;"
+	"r1 += 0x98;"
+	"r2 = r5;"
+	"r2 += 0x90;"
+	"r2 = *(u32 *)(r2 + 0x0);"
+	"r3 = r7;"
+	"r3 &= 0x1;"
+	"r2 *= 0xa8;"
+	"if r3 == 0x0 goto l2_%=;"
+	"r1 += r2;"
+	"r1 -= r7;"
+	"r1 += 0x8;"
+	"if r1 <= 0xb20 goto l3_%=;"
+	"r1 = 0x0;"
+	"goto l4_%=;"
+"l3_%=:"
+	"r1 += r7;"
+"l4_%=:"
+	"if r1 == 0x0 goto l8_%=;"
+	"goto l9_%=;"
+"l2_%=:"
+	"r1 += r2;"
+	"r1 -= r7;"
+	"r1 += 0x10;"
+	"if r1 <= 0xb20 goto l6_%=;"
+	"r1 = 0x0;"
+	"goto l7_%=;"
+"l6_%=:"
+	"r1 += r7;"
+"l7_%=:"
+	"if r1 == 0x0 goto l8_%=;"
+	"goto l9_%=;"
+"l0_%=:"
+	"r1 = 0x3;"
+	"*(u64 *)(r10 - 0x10) = r1;"
+	"r2 = r1;"
+	"goto l1_%=;"
+"l8_%=:"
+	"r1 = r5;"
+	"r1 += 0x4;"
+	"r1 = *(u32 *)(r1 + 0x0);"
+	"*(u64 *)(r10 - 0x8) = r1;"
+"l1_%=:"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c
new file mode 100644
index 000000000000..a509cad97e69
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_kfunc_prog_types.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+#include "cgrp_kfunc_common.h"
+#include "cpumask_common.h"
+#include "task_kfunc_common.h"
+
+char _license[] SEC("license") = "GPL";
+
+/***************
+ * Task kfuncs *
+ ***************/
+
+static void task_kfunc_load_test(void)
+{
+	struct task_struct *current, *ref_1, *ref_2;
+
+	current = bpf_get_current_task_btf();
+	ref_1 = bpf_task_from_pid(current->pid);
+	if (!ref_1)
+		return;
+
+	ref_2 = bpf_task_acquire(ref_1);
+	if (ref_2)
+		bpf_task_release(ref_2);
+	bpf_task_release(ref_1);
+}
+
+SEC("raw_tp")
+__failure __msg("calling kernel function")
+int BPF_PROG(task_kfunc_raw_tp)
+{
+	task_kfunc_load_test();
+	return 0;
+}
+
+SEC("syscall")
+__success
+int BPF_PROG(task_kfunc_syscall)
+{
+	task_kfunc_load_test();
+	return 0;
+}
+
+SEC("tracepoint")
+__success
+int BPF_PROG(task_kfunc_tracepoint)
+{
+	task_kfunc_load_test();
+	return 0;
+}
+
+SEC("perf_event")
+__success
+int BPF_PROG(task_kfunc_perf_event)
+{
+	task_kfunc_load_test();
+	return 0;
+}
+
+/*****************
+ * cgroup kfuncs *
+ *****************/
+
+static void cgrp_kfunc_load_test(void)
+{
+	struct cgroup *cgrp, *ref;
+
+	cgrp = bpf_cgroup_from_id(0);
+	if (!cgrp)
+		return;
+
+	ref = bpf_cgroup_acquire(cgrp);
+	if (!ref) {
+		bpf_cgroup_release(cgrp);
+		return;
+	}
+
+	bpf_cgroup_release(ref);
+	bpf_cgroup_release(cgrp);
+}
+
+SEC("raw_tp")
+__failure __msg("calling kernel function")
+int BPF_PROG(cgrp_kfunc_raw_tp)
+{
+	cgrp_kfunc_load_test();
+	return 0;
+}
+
+SEC("syscall")
+__success
+int BPF_PROG(cgrp_kfunc_syscall)
+{
+	cgrp_kfunc_load_test();
+	return 0;
+}
+
+SEC("tracepoint")
+__success
+int BPF_PROG(cgrp_kfunc_tracepoint)
+{
+	cgrp_kfunc_load_test();
+	return 0;
+}
+
+SEC("perf_event")
+__success
+int BPF_PROG(cgrp_kfunc_perf_event)
+{
+	cgrp_kfunc_load_test();
+	return 0;
+}
+
+/******************
+ * cpumask kfuncs *
+ ******************/
+
+static void cpumask_kfunc_load_test(void)
+{
+	struct bpf_cpumask *alloc, *ref;
+
+	alloc = bpf_cpumask_create();
+	if (!alloc)
+		return;
+
+	ref = bpf_cpumask_acquire(alloc);
+	bpf_cpumask_set_cpu(0, alloc);
+	bpf_cpumask_test_cpu(0, (const struct cpumask *)ref);
+
+	bpf_cpumask_release(ref);
+	bpf_cpumask_release(alloc);
+}
+
+SEC("raw_tp")
+__failure __msg("calling kernel function")
+int BPF_PROG(cpumask_kfunc_raw_tp)
+{
+	cpumask_kfunc_load_test();
+	return 0;
+}
+
+SEC("syscall")
+__success
+int BPF_PROG(cpumask_kfunc_syscall)
+{
+	cpumask_kfunc_load_test();
+	return 0;
+}
+
+SEC("tracepoint")
+__success
+int BPF_PROG(cpumask_kfunc_tracepoint)
+{
+	cpumask_kfunc_load_test();
+	return 0;
+}
+
+SEC("perf_event")
+__success
+int BPF_PROG(cpumask_kfunc_perf_event)
+{
+	cpumask_kfunc_load_test();
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_ld_ind.c b/tools/testing/selftests/bpf/progs/verifier_ld_ind.c
new file mode 100644
index 000000000000..c925ba9a2e74
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ld_ind.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/ld_ind.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("ld_ind: check calling conv, r1")
+__failure __msg("R1 !read_ok")
+__failure_unpriv
+__naked void ind_check_calling_conv_r1(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ld_ind: check calling conv, r2")
+__failure __msg("R2 !read_ok")
+__failure_unpriv
+__naked void ind_check_calling_conv_r2(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r2 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ld_ind: check calling conv, r3")
+__failure __msg("R3 !read_ok")
+__failure_unpriv
+__naked void ind_check_calling_conv_r3(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r3 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r3;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ld_ind: check calling conv, r4")
+__failure __msg("R4 !read_ok")
+__failure_unpriv
+__naked void ind_check_calling_conv_r4(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r4 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r4;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ld_ind: check calling conv, r5")
+__failure __msg("R5 !read_ok")
+__failure_unpriv
+__naked void ind_check_calling_conv_r5(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r5 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r5;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ld_ind: check calling conv, r7")
+__success __success_unpriv __retval(1)
+__naked void ind_check_calling_conv_r7(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r7;					\
+	exit;						\
+"	:
+	: __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_ldsx.c b/tools/testing/selftests/bpf/progs/verifier_ldsx.c
new file mode 100644
index 000000000000..c8494b682c31
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ldsx.c
@@ -0,0 +1,447 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_arena_common.h"
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
+	defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \
+	defined(__TARGET_ARCH_loongarch)) && \
+	__clang_major__ >= 18
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARENA);
+	__uint(map_flags, BPF_F_MMAPABLE);
+	__uint(max_entries, 1);
+} arena SEC(".maps");
+
+SEC("socket")
+__description("LDSX, S8")
+__success __success_unpriv __retval(-2)
+__naked void ldsx_s8(void)
+{
+	asm volatile (
+	"r1 = 0x3fe;"
+	"*(u64 *)(r10 - 8) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s8 *)(r10 - 8);"
+#else
+	"r0 = *(s8 *)(r10 - 1);"
+#endif
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__description("LDSX, S16")
+__success __success_unpriv __retval(-2)
+__naked void ldsx_s16(void)
+{
+	asm volatile (
+	"r1 = 0x3fffe;"
+	"*(u64 *)(r10 - 8) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s16 *)(r10 - 8);"
+#else
+	"r0 = *(s16 *)(r10 - 2);"
+#endif
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__description("LDSX, S32")
+__success __success_unpriv __retval(-1)
+__naked void ldsx_s32(void)
+{
+	asm volatile (
+	"r1 = 0xfffffffe;"
+	"*(u64 *)(r10 - 8) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s32 *)(r10 - 8);"
+#else
+	"r0 = *(s32 *)(r10 - 4);"
+#endif
+	"r0 >>= 1;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__description("LDSX, S8 range checking, privileged")
+__log_level(2) __success __retval(1)
+__msg("R1=scalar(smin=smin32=-128,smax=smax32=127)")
+__naked void ldsx_s8_range_priv(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"*(u64 *)(r10 - 8) = r0;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r1 = *(s8 *)(r10 - 8);"
+#else
+	"r1 = *(s8 *)(r10 - 1);"
+#endif
+	/* r1 with s8 range */
+	"if r1 s> 0x7f goto l0_%=;"
+	"if r1 s< -0x80 goto l0_%=;"
+	"r0 = 1;"
+"l1_%=:"
+	"exit;"
+"l0_%=:"
+	"r0 = 2;"
+	"goto l1_%=;"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("LDSX, S16 range checking")
+__success __success_unpriv __retval(1)
+__naked void ldsx_s16_range(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"*(u64 *)(r10 - 8) = r0;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r1 = *(s16 *)(r10 - 8);"
+#else
+	"r1 = *(s16 *)(r10 - 2);"
+#endif
+	/* r1 with s16 range */
+	"if r1 s> 0x7fff goto l0_%=;"
+	"if r1 s< -0x8000 goto l0_%=;"
+	"r0 = 1;"
+"l1_%=:"
+	"exit;"
+"l0_%=:"
+	"r0 = 2;"
+	"goto l1_%=;"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("LDSX, S32 range checking")
+__success __success_unpriv __retval(1)
+__naked void ldsx_s32_range(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"*(u64 *)(r10 - 8) = r0;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r1 = *(s32 *)(r10 - 8);"
+#else
+	"r1 = *(s32 *)(r10 - 4);"
+#endif
+	/* r1 with s16 range */
+	"if r1 s> 0x7fffFFFF goto l0_%=;"
+	"if r1 s< -0x80000000 goto l0_%=;"
+	"r0 = 1;"
+"l1_%=:"
+	"exit;"
+"l0_%=:"
+	"r0 = 2;"
+	"goto l1_%=;"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_1(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[xdp_md_data]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_2(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[xdp_md_data_end]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("LDSX, xdp s32 xdp_md->data_meta")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_3(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[xdp_md_data_meta]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_4(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[sk_buff_data]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(sk_buff_data, offsetof(struct __sk_buff, data))
+	: __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_5(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[sk_buff_data_end]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tcx/ingress")
+__description("LDSX, tcx s32 __sk_buff->data_meta")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_6(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[sk_buff_data_meta]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(sk_buff_data_meta, offsetof(struct __sk_buff, data_meta))
+	: __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("LDSX, flow_dissector s32 __sk_buff->data")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_7(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[sk_buff_data]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(sk_buff_data, offsetof(struct __sk_buff, data))
+	: __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("LDSX, flow_dissector s32 __sk_buff->data_end")
+__failure __msg("invalid bpf_context access")
+__naked void ldsx_ctx_8(void)
+{
+	asm volatile (
+	"r2 = *(s32 *)(r1 + %[sk_buff_data_end]);"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("syscall")
+__description("Arena LDSX Disasm")
+__success
+__arch_x86_64
+__jited("movslq	0x10(%rax,%r12), %r14")
+__jited("movswq	0x18(%rax,%r12), %r14")
+__jited("movsbq	0x20(%rax,%r12), %r14")
+__jited("movslq	0x10(%rdi,%r12), %r15")
+__jited("movswq	0x18(%rdi,%r12), %r15")
+__jited("movsbq	0x20(%rdi,%r12), %r15")
+__arch_arm64
+__jited("add	x11, x7, x28")
+__jited("ldrsw	x21, [x11, #0x10]")
+__jited("add	x11, x7, x28")
+__jited("ldrsh	x21, [x11, #0x18]")
+__jited("add	x11, x7, x28")
+__jited("ldrsb	x21, [x11, #0x20]")
+__jited("add	x11, x0, x28")
+__jited("ldrsw	x22, [x11, #0x10]")
+__jited("add	x11, x0, x28")
+__jited("ldrsh	x22, [x11, #0x18]")
+__jited("add	x11, x0, x28")
+__jited("ldrsb	x22, [x11, #0x20]")
+__naked void arena_ldsx_disasm(void *ctx)
+{
+	asm volatile (
+	"r1 = %[arena] ll;"
+	"r2 = 0;"
+	"r3 = 1;"
+	"r4 = %[numa_no_node];"
+	"r5 = 0;"
+	"call %[bpf_arena_alloc_pages];"
+	"r0 = addr_space_cast(r0, 0x0, 0x1);"
+	"r1 = r0;"
+	"r8 = *(s32 *)(r0 + 16);"
+	"r8 = *(s16 *)(r0 + 24);"
+	"r8 = *(s8  *)(r0 + 32);"
+	"r9 = *(s32 *)(r1 + 16);"
+	"r9 = *(s16 *)(r1 + 24);"
+	"r9 = *(s8  *)(r1 + 32);"
+	"r0 = 0;"
+	"exit;"
+	:: __imm(bpf_arena_alloc_pages),
+	   __imm_addr(arena),
+	   __imm_const(numa_no_node, NUMA_NO_NODE)
+	:  __clobber_all
+	);
+}
+
+SEC("syscall")
+__description("Arena LDSX Exception")
+__success __retval(0)
+__arch_x86_64
+__arch_arm64
+__naked void arena_ldsx_exception(void *ctx)
+{
+	asm volatile (
+	"r1 = %[arena] ll;"
+	"r0 = 0xdeadbeef;"
+	"r0 = addr_space_cast(r0, 0x0, 0x1);"
+	"r1 = 0x3fe;"
+	"*(u64 *)(r0 + 0) = r1;"
+	"r0 = *(s8 *)(r0 + 0);"
+	"exit;"
+	:
+	:  __imm_addr(arena)
+	:  __clobber_all
+	);
+}
+
+SEC("syscall")
+__description("Arena LDSX, S8")
+__success __retval(-1)
+__arch_x86_64
+__arch_arm64
+__naked void arena_ldsx_s8(void *ctx)
+{
+	asm volatile (
+	"r1 = %[arena] ll;"
+	"r2 = 0;"
+	"r3 = 1;"
+	"r4 = %[numa_no_node];"
+	"r5 = 0;"
+	"call %[bpf_arena_alloc_pages];"
+	"r0 = addr_space_cast(r0, 0x0, 0x1);"
+	"r1 = 0x3fe;"
+	"*(u64 *)(r0 + 0) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s8 *)(r0 + 0);"
+#else
+	"r0 = *(s8 *)(r0 + 7);"
+#endif
+	"r0 >>= 1;"
+	"exit;"
+	:: __imm(bpf_arena_alloc_pages),
+	   __imm_addr(arena),
+	   __imm_const(numa_no_node, NUMA_NO_NODE)
+	:  __clobber_all
+	);
+}
+
+SEC("syscall")
+__description("Arena LDSX, S16")
+__success __retval(-1)
+__arch_x86_64
+__arch_arm64
+__naked void arena_ldsx_s16(void *ctx)
+{
+	asm volatile (
+	"r1 = %[arena] ll;"
+	"r2 = 0;"
+	"r3 = 1;"
+	"r4 = %[numa_no_node];"
+	"r5 = 0;"
+	"call %[bpf_arena_alloc_pages];"
+	"r0 = addr_space_cast(r0, 0x0, 0x1);"
+	"r1 = 0x3fffe;"
+	"*(u64 *)(r0 + 0) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s16 *)(r0 + 0);"
+#else
+	"r0 = *(s16 *)(r0 + 6);"
+#endif
+	"r0 >>= 1;"
+	"exit;"
+	:: __imm(bpf_arena_alloc_pages),
+	   __imm_addr(arena),
+	   __imm_const(numa_no_node, NUMA_NO_NODE)
+	:  __clobber_all
+	);
+}
+
+SEC("syscall")
+__description("Arena LDSX, S32")
+__success __retval(-1)
+__arch_x86_64
+__arch_arm64
+__naked void arena_ldsx_s32(void *ctx)
+{
+	asm volatile (
+	"r1 = %[arena] ll;"
+	"r2 = 0;"
+	"r3 = 1;"
+	"r4 = %[numa_no_node];"
+	"r5 = 0;"
+	"call %[bpf_arena_alloc_pages];"
+	"r0 = addr_space_cast(r0, 0x0, 0x1);"
+	"r1 = 0xfffffffe;"
+	"*(u64 *)(r0 + 0) = r1;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(s32 *)(r0 + 0);"
+#else
+	"r0 = *(s32 *)(r0 + 4);"
+#endif
+	"r0 >>= 1;"
+	"exit;"
+	:: __imm(bpf_arena_alloc_pages),
+	   __imm_addr(arena),
+	   __imm_const(numa_no_node, NUMA_NO_NODE)
+	:  __clobber_all
+	);
+}
+
+/* to retain debug info for BTF generation */
+void kfunc_root(void)
+{
+	bpf_arena_alloc_pages(0, 0, 0, 0, 0);
+}
+
+#else
+
+SEC("socket")
+__description("cpuv4 is not supported by compiler or jit, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_leak_ptr.c b/tools/testing/selftests/bpf/progs/verifier_leak_ptr.c
new file mode 100644
index 000000000000..d153fbe50055
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_leak_ptr.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/leak_ptr.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("leak pointer into ctx 1")
+__failure __msg("BPF_ATOMIC stores into R1 ctx is not allowed")
+__failure_unpriv __msg_unpriv("R2 leaks addr into mem")
+__naked void leak_pointer_into_ctx_1(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r2 = %[map_hash_8b] ll;				\
+	lock *(u64 *)(r1 + %[__sk_buff_cb_0]) += r2;	\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("leak pointer into ctx 2")
+__failure __msg("BPF_ATOMIC stores into R1 ctx is not allowed")
+__failure_unpriv __msg_unpriv("R10 leaks addr into mem")
+__naked void leak_pointer_into_ctx_2(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	lock *(u64 *)(r1 + %[__sk_buff_cb_0]) += r10;	\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("leak pointer into ctx 3")
+__success __failure_unpriv __msg_unpriv("R2 leaks addr into ctx")
+__retval(0)
+__naked void leak_pointer_into_ctx_3(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r2 = %[map_hash_8b] ll;				\
+	*(u64*)(r1 + %[__sk_buff_cb_0]) = r2;		\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_8b),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("leak pointer into map val")
+__success __failure_unpriv __msg_unpriv("R6 leaks addr into mem")
+__retval(0)
+__naked void leak_pointer_into_map_val(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r3 = 0;						\
+	*(u64*)(r0 + 0) = r3;				\
+	lock *(u64 *)(r0 + 0) += r6;			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c b/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c
new file mode 100644
index 000000000000..8f755d2464cf
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_linked_scalars.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("scalars: find linked scalars")
+__failure
+__msg("math between fp pointer and 2147483647 is not allowed")
+__naked void scalars(void)
+{
+	asm volatile ("				\
+	r0 = 0;					\
+	r1 = 0x80000001 ll;			\
+	r1 /= 1;				\
+	r2 = r1;				\
+	r4 = r1;				\
+	w2 += 0x7FFFFFFF;			\
+	w4 += 0;				\
+	if r2 == 0 goto l1;			\
+	exit;					\
+l1:						\
+	r4 >>= 63;				\
+	r3 = 1;					\
+	r3 -= r4;				\
+	r3 *= 0x7FFFFFFF;			\
+	r3 += r10;				\
+	*(u8*)(r3 - 1) = r0;			\
+	exit;					\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_live_stack.c b/tools/testing/selftests/bpf/progs/verifier_live_stack.c
new file mode 100644
index 000000000000..2de105057bbc
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_live_stack.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, long long);
+} map SEC(".maps");
+
+SEC("socket")
+__log_level(2)
+__msg("(0) frame 0 insn 2 +written -8")
+__msg("(0) frame 0 insn 1 +live -24")
+__msg("(0) frame 0 insn 1 +written -8")
+__msg("(0) frame 0 insn 0 +live -8,-24")
+__msg("(0) frame 0 insn 0 +written -8")
+__msg("(0) live stack update done in 2 iterations")
+__naked void simple_read_simple_write(void)
+{
+	asm volatile (
+	"r1 = *(u64 *)(r10 - 8);"
+	"r2 = *(u64 *)(r10 - 24);"
+	"*(u64 *)(r10 - 8) = r1;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("(0) frame 0 insn 1 +live -8")
+__not_msg("(0) frame 0 insn 1 +written")
+__msg("(0) live stack update done in 2 iterations")
+__msg("(0) frame 0 insn 1 +live -16")
+__msg("(0) frame 0 insn 1 +written -32")
+__msg("(0) live stack update done in 2 iterations")
+__naked void read_write_join(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"if r0 > 42 goto 1f;"
+	"r0 = *(u64 *)(r10 - 8);"
+	"*(u64 *)(r10 - 32) = r0;"
+	"*(u64 *)(r10 - 40) = r0;"
+	"exit;"
+"1:"
+	"r0 = *(u64 *)(r10 - 16);"
+	"*(u64 *)(r10 - 32) = r0;"
+	"exit;"
+	:: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("2: (25) if r0 > 0x2a goto pc+1")
+__msg("7: (95) exit")
+__msg("(0) frame 0 insn 2 +written -16")
+__msg("(0) live stack update done in 2 iterations")
+__msg("7: (95) exit")
+__not_msg("(0) frame 0 insn 2")
+__msg("(0) live stack update done in 1 iterations")
+__naked void must_write_not_same_slot(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r1 = -8;"
+	"if r0 > 42 goto 1f;"
+	"r1 = -16;"
+"1:"
+	"r2 = r10;"
+	"r2 += r1;"
+	"*(u64 *)(r2 + 0) = r0;"
+	"exit;"
+	:: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("(0) frame 0 insn 0 +written -8,-16")
+__msg("(0) live stack update done in 2 iterations")
+__msg("(0) frame 0 insn 0 +written -8")
+__msg("(0) live stack update done in 2 iterations")
+__naked void must_write_not_same_type(void)
+{
+	asm volatile (
+	"*(u64*)(r10 - 8) = 0;"
+	"r2 = r10;"
+	"r2 += -8;"
+	"r1 = %[map] ll;"
+	"call %[bpf_map_lookup_elem];"
+	"if r0 != 0 goto 1f;"
+	"r0 = r10;"
+	"r0 += -16;"
+"1:"
+	"*(u64 *)(r0 + 0) = 42;"
+	"exit;"
+	:
+        : __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+__msg("(2,4) frame 0 insn 4 +written -8")
+__msg("(2,4) live stack update done in 2 iterations")
+__msg("(0) frame 0 insn 2 +written -8")
+__msg("(0) live stack update done in 2 iterations")
+__naked void caller_stack_write(void)
+{
+	asm volatile (
+	"r1 = r10;"
+	"r1 += -8;"
+	"call write_first_param;"
+	"exit;"
+	::: __clobber_all);
+}
+
+static __used __naked void write_first_param(void)
+{
+	asm volatile (
+	"*(u64 *)(r1 + 0) = 7;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__log_level(2)
+/* caller_stack_read() function */
+__msg("2: .12345.... (85) call pc+4")
+__msg("5: .12345.... (85) call pc+1")
+__msg("6: 0......... (95) exit")
+/* read_first_param() function */
+__msg("7: .1........ (79) r0 = *(u64 *)(r1 +0)")
+__msg("8: 0......... (95) exit")
+/* update for callsite at (2) */
+__msg("(2,7) frame 0 insn 7 +live -8")
+__msg("(2,7) live stack update done in 2 iterations")
+__msg("(0) frame 0 insn 2 +live -8")
+__msg("(0) live stack update done in 2 iterations")
+/* update for callsite at (5) */
+__msg("(5,7) frame 0 insn 7 +live -16")
+__msg("(5,7) live stack update done in 2 iterations")
+__msg("(0) frame 0 insn 5 +live -16")
+__msg("(0) live stack update done in 2 iterations")
+__naked void caller_stack_read(void)
+{
+	asm volatile (
+	"r1 = r10;"
+	"r1 += -8;"
+	"call read_first_param;"
+	"r1 = r10;"
+	"r1 += -16;"
+	"call read_first_param;"
+	"exit;"
+	::: __clobber_all);
+}
+
+static __used __naked void read_first_param(void)
+{
+	asm volatile (
+	"r0 = *(u64 *)(r1 + 0);"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__flag(BPF_F_TEST_STATE_FREQ)
+__log_level(2)
+/* read_first_param2() function */
+__msg(" 9: .1........ (79) r0 = *(u64 *)(r1 +0)")
+__msg("10: .......... (b7) r0 = 0")
+__msg("11: 0......... (05) goto pc+0")
+__msg("12: 0......... (95) exit")
+/*
+ * The purpose of the test is to check that checkpoint in
+ * read_first_param2() stops path traversal. This will only happen if
+ * verifier understands that fp[0]-8 at insn (12) is not alive.
+ */
+__msg("12: safe")
+__msg("processed 20 insns")
+__naked void caller_stack_pruning(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"if r0 == 42 goto 1f;"
+	"r0 = %[map] ll;"
+"1:"
+	"*(u64 *)(r10 - 8) = r0;"
+	"r1 = r10;"
+	"r1 += -8;"
+	/*
+	 * fp[0]-8 is either pointer to map or a scalar,
+	 * preventing state pruning at checkpoint created for call.
+	 */
+	"call read_first_param2;"
+	"exit;"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm_addr(map)
+	: __clobber_all);
+}
+
+static __used __naked void read_first_param2(void)
+{
+	asm volatile (
+	"r0 = *(u64 *)(r1 + 0);"
+	"r0 = 0;"
+	/*
+	 * Checkpoint at goto +0 should fire,
+	 * as caller stack fp[0]-8 is not alive at this point.
+	 */
+	"goto +0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("socket")
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure
+__msg("R1 type=scalar expected=map_ptr")
+__naked void caller_stack_pruning_callback(void)
+{
+	asm volatile (
+	"r0 = %[map] ll;"
+	"*(u64 *)(r10 - 8) = r0;"
+	"r1 = 2;"
+	"r2 = loop_cb ll;"
+	"r3 = r10;"
+	"r3 += -8;"
+	"r4 = 0;"
+	/*
+	 * fp[0]-8 is either pointer to map or a scalar,
+	 * preventing state pruning at checkpoint created for call.
+	 */
+	"call %[bpf_loop];"
+	"r0 = 42;"
+	"exit;"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_loop),
+	  __imm_addr(map)
+	: __clobber_all);
+}
+
+static __used __naked void loop_cb(void)
+{
+	asm volatile (
+	/*
+	 * Checkpoint at function entry should not fire, as caller
+	 * stack fp[0]-8 is alive at this point.
+	 */
+	"r6 = r2;"
+	"r1 = *(u64 *)(r6 + 0);"
+	"*(u64*)(r10 - 8) = 7;"
+	"r2 = r10;"
+	"r2 += -8;"
+	"call %[bpf_map_lookup_elem];"
+	/*
+	 * This should stop verifier on a second loop iteration,
+	 * but only if verifier correctly maintains that fp[0]-8
+	 * is still alive.
+	 */
+	"*(u64 *)(r6 + 0) = 0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/*
+ * Because of a bug in verifier.c:compute_postorder()
+ * the program below overflowed traversal queue in that function.
+ */
+SEC("socket")
+__naked void syzbot_postorder_bug1(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"if r0 != 0 goto -1;"
+	"exit;"
+	::: __clobber_all);
+}
+
+struct {
+        __uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+        __uint(max_entries, 1);
+        __type(key, __u32);
+        __type(value, __u32);
+} map_array SEC(".maps");
+
+SEC("socket")
+__failure __msg("invalid read from stack R2 off=-1024 size=8")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked unsigned long caller_stack_write_tail_call(void)
+{
+        asm volatile (
+	"r6 = r1;"
+	"*(u64 *)(r10 - 8) = -8;"
+        "call %[bpf_get_prandom_u32];"
+        "if r0 != 42 goto 1f;"
+        "goto 2f;"
+  "1:"
+        "*(u64 *)(r10 - 8) = -1024;"
+  "2:"
+        "r1 = r6;"
+        "r2 = r10;"
+        "r2 += -8;"
+        "call write_tail_call;"
+        "r1 = *(u64 *)(r10 - 8);"
+        "r2 = r10;"
+        "r2 += r1;"
+        "r0 = *(u64 *)(r2 + 0);"
+        "exit;"
+        :: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+static __used __naked unsigned long write_tail_call(void)
+{
+        asm volatile (
+        "r6 = r2;"
+        "r2 = %[map_array] ll;"
+        "r3 = 0;"
+        "call %[bpf_tail_call];"
+        "*(u64 *)(r6 + 0) = -16;"
+        "r0 = 0;"
+        "exit;"
+	:
+	: __imm(bpf_tail_call),
+          __imm_addr(map_array)
+        : __clobber_all);
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_load_acquire.c b/tools/testing/selftests/bpf/progs/verifier_load_acquire.c
new file mode 100644
index 000000000000..74f4f19c10b8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_load_acquire.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Google LLC. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+#ifdef CAN_USE_LOAD_ACQ_STORE_REL
+
+SEC("socket")
+__description("load-acquire, 8-bit")
+__success __success_unpriv __retval(0)
+__naked void load_acquire_8(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0xfe;"
+	"*(u8 *)(r10 - 1) = w1;"
+	".8byte %[load_acquire_insn];" // w2 = load_acquire((u8 *)(r10 - 1));
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_LOAD_ACQ, BPF_REG_2, BPF_REG_10, -1))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire, 16-bit")
+__success __success_unpriv __retval(0)
+__naked void load_acquire_16(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0xfedc;"
+	"*(u16 *)(r10 - 2) = w1;"
+	".8byte %[load_acquire_insn];" // w2 = load_acquire((u16 *)(r10 - 2));
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_H, BPF_LOAD_ACQ, BPF_REG_2, BPF_REG_10, -2))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire, 32-bit")
+__success __success_unpriv __retval(0)
+__naked void load_acquire_32(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0xfedcba09;"
+	"*(u32 *)(r10 - 4) = w1;"
+	".8byte %[load_acquire_insn];" // w2 = load_acquire((u32 *)(r10 - 4));
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_W, BPF_LOAD_ACQ, BPF_REG_2, BPF_REG_10, -4))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire, 64-bit")
+__success __success_unpriv __retval(0)
+__naked void load_acquire_64(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"r1 = 0xfedcba0987654321 ll;"
+	"*(u64 *)(r10 - 8) = r1;"
+	".8byte %[load_acquire_insn];" // r2 = load_acquire((u64 *)(r10 - 8));
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_2, BPF_REG_10, -8))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire with uninitialized src_reg")
+__failure __failure_unpriv __msg("R2 !read_ok")
+__naked void load_acquire_with_uninitialized_src_reg(void)
+{
+	asm volatile (
+	".8byte %[load_acquire_insn];" // r0 = load_acquire((u64 *)(r2 + 0));
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_2, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire with non-pointer src_reg")
+__failure __failure_unpriv __msg("R1 invalid mem access 'scalar'")
+__naked void load_acquire_with_non_pointer_src_reg(void)
+{
+	asm volatile (
+	"r1 = 0;"
+	".8byte %[load_acquire_insn];" // r0 = load_acquire((u64 *)(r1 + 0));
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_1, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("misaligned load-acquire")
+__failure __failure_unpriv __msg("misaligned stack access off")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void load_acquire_misaligned(void)
+{
+	asm volatile (
+	"r1 = 0;"
+	"*(u64 *)(r10 - 8) = r1;"
+	".8byte %[load_acquire_insn];" // w0 = load_acquire((u32 *)(r10 - 5));
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_W, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_10, -5))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire from ctx pointer")
+__failure __failure_unpriv __msg("BPF_ATOMIC loads from R1 ctx is not allowed")
+__naked void load_acquire_from_ctx_pointer(void)
+{
+	asm volatile (
+	".8byte %[load_acquire_insn];" // w0 = load_acquire((u8 *)(r1 + 0));
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_1, 0))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("load-acquire from pkt pointer")
+__failure __msg("BPF_ATOMIC loads from R2 pkt is not allowed")
+__naked void load_acquire_from_pkt_pointer(void)
+{
+	asm volatile (
+	"r2 = *(u32 *)(r1 + %[xdp_md_data]);"
+	"r3 = *(u32 *)(r1 + %[xdp_md_data_end]);"
+	"r1 = r2;"
+	"r1 += 8;"
+	"if r1 >= r3 goto l0_%=;"
+	".8byte %[load_acquire_insn];" // w0 = load_acquire((u8 *)(r2 + 0));
+"l0_%=:  r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_2, 0))
+	: __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("load-acquire from flow_keys pointer")
+__failure __msg("BPF_ATOMIC loads from R2 flow_keys is not allowed")
+__naked void load_acquire_from_flow_keys_pointer(void)
+{
+	asm volatile (
+	"r2 = *(u64 *)(r1 + %[__sk_buff_flow_keys]);"
+	".8byte %[load_acquire_insn];" // w0 = load_acquire((u8 *)(r2 + 0));
+	"exit;"
+	:
+	: __imm_const(__sk_buff_flow_keys,
+		      offsetof(struct __sk_buff, flow_keys)),
+	  __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_2, 0))
+	: __clobber_all);
+}
+
+SEC("sk_reuseport")
+__description("load-acquire from sock pointer")
+__failure __msg("BPF_ATOMIC loads from R2 sock is not allowed")
+__naked void load_acquire_from_sock_pointer(void)
+{
+	asm volatile (
+	"r2 = *(u64 *)(r1 + %[sk_reuseport_md_sk]);"
+	// w0 = load_acquire((u8 *)(r2 + offsetof(struct bpf_sock, family)));
+	".8byte %[load_acquire_insn];"
+	"exit;"
+	:
+	: __imm_const(sk_reuseport_md_sk, offsetof(struct sk_reuseport_md, sk)),
+	  __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_LOAD_ACQ, BPF_REG_0, BPF_REG_2,
+				   offsetof(struct bpf_sock, family)))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("load-acquire with invalid register R15")
+__failure __failure_unpriv __msg("R15 is invalid")
+__naked void load_acquire_with_invalid_reg(void)
+{
+	asm volatile (
+	".8byte %[load_acquire_insn];" // r0 = load_acquire((u64 *)(r15 + 0));
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_0, 15 /* invalid reg */, 0))
+	: __clobber_all);
+}
+
+#else /* CAN_USE_LOAD_ACQ_STORE_REL */
+
+SEC("socket")
+__description("Clang version < 18, ENABLE_ATOMICS_TESTS not defined, and/or JIT doesn't support load-acquire, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif /* CAN_USE_LOAD_ACQ_STORE_REL */
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_loops1.c b/tools/testing/selftests/bpf/progs/verifier_loops1.c
new file mode 100644
index 000000000000..fbdde80e7b90
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_loops1.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/loops1.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("bounded loop, count to 4")
+__success __retval(4)
+__naked void bounded_loop_count_to_4(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l0_%=:	r0 += 1;					\
+	if r0 < 4 goto l0_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded loop, count to 20")
+__success
+__naked void bounded_loop_count_to_20(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l0_%=:	r0 += 3;					\
+	if r0 < 20 goto l0_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded loop, count from positive unknown to 4")
+__success
+__naked void from_positive_unknown_to_4(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	if r0 s< 0 goto l0_%=;				\
+l1_%=:	r0 += 1;					\
+	if r0 < 4 goto l1_%=;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded loop, count from totally unknown to 4")
+__success
+__naked void from_totally_unknown_to_4(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+l0_%=:	r0 += 1;					\
+	if r0 < 4 goto l0_%=;				\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded loop, count to 4 with equality")
+__success
+__naked void count_to_4_with_equality(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l0_%=:	r0 += 1;					\
+	if r0 != 4 goto l0_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("bounded loop, start in the middle")
+__success
+__failure_unpriv __msg_unpriv("back-edge")
+__naked void loop_start_in_the_middle(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	goto l0_%=;					\
+l1_%=:	r0 += 1;					\
+l0_%=:	if r0 < 4 goto l1_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__description("bounded loop containing a forward jump")
+__success __retval(4)
+__naked void loop_containing_a_forward_jump(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l1_%=:	r0 += 1;					\
+	if r0 == r0 goto l0_%=;				\
+l0_%=:	if r0 < 4 goto l1_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded loop that jumps out rather than in")
+__success
+__naked void jumps_out_rather_than_in(void)
+{
+	asm volatile ("					\
+	r6 = 0;						\
+l1_%=:	r6 += 1;					\
+	if r6 > 10000 goto l0_%=;			\
+	call %[bpf_get_prandom_u32];			\
+	goto l1_%=;					\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("infinite loop after a conditional jump")
+__failure __msg("program is too large")
+__naked void loop_after_a_conditional_jump(void)
+{
+	asm volatile ("					\
+	r0 = 5;						\
+	if r0 < 4 goto l0_%=;				\
+l1_%=:	r0 += 1;					\
+	goto l1_%=;					\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("bounded recursion")
+__failure
+/* verifier limitation in detecting max stack depth */
+__msg("the call stack of 8 frames is too deep !")
+__naked void bounded_recursion(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call bounded_recursion__1;			\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void bounded_recursion__1(void)
+{
+	asm volatile ("					\
+	r1 += 1;					\
+	r0 = r1;					\
+	if r1 < 4 goto l0_%=;				\
+	exit;						\
+l0_%=:	call bounded_recursion__1;			\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("infinite loop in two jumps")
+__failure __msg("loop detected")
+__naked void infinite_loop_in_two_jumps(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l1_%=:	goto l0_%=;					\
+l0_%=:	if r0 < 4 goto l1_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("infinite loop: three-jump trick")
+__failure __msg("loop detected")
+__naked void infinite_loop_three_jump_trick(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+l2_%=:	r0 += 1;					\
+	r0 &= 1;					\
+	if r0 < 2 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 += 1;					\
+	r0 &= 1;					\
+	if r0 < 2 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 += 1;					\
+	r0 &= 1;					\
+	if r0 < 2 goto l2_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__description("not-taken loop with back jump to 1st insn")
+__success __retval(123)
+__naked void back_jump_to_1st_insn_1(void)
+{
+	asm volatile ("					\
+l0_%=:	r0 = 123;					\
+	if r0 == 4 goto l0_%=;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__description("taken loop with back jump to 1st insn")
+__success __retval(55)
+__naked void back_jump_to_1st_insn_2(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	r2 = 0;						\
+	call back_jump_to_1st_insn_2__1;		\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void back_jump_to_1st_insn_2__1(void)
+{
+	asm volatile ("					\
+l0_%=:	r2 += r1;					\
+	r1 -= 1;					\
+	if r1 != 0 goto l0_%=;				\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__description("taken loop with back jump to 1st insn, 2")
+__success __retval(55)
+__naked void jump_to_1st_insn_2(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	r2 = 0;						\
+	call jump_to_1st_insn_2__1;			\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void jump_to_1st_insn_2__1(void)
+{
+	asm volatile ("					\
+l0_%=:	r2 += r1;					\
+	r1 -= 1;					\
+	if w1 != 0 goto l0_%=;				\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__success
+__naked void not_an_inifinite_loop(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0xff;					\
+	*(u64 *)(r10 - 8) = r0;				\
+	r0 = 0;						\
+loop_%=:						\
+	r0 = *(u64 *)(r10 - 8);				\
+	if r0 > 10 goto exit_%=;			\
+	r0 += 1;					\
+	*(u64 *)(r10 - 8) = r0;				\
+	r0 = 0;						\
+	goto loop_%=;					\
+exit_%=:						\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/*
+ * This test case triggered a bug in verifier.c:maybe_exit_scc().
+ * Speculative execution path reaches stack access instruction,
+ * stops and triggers maybe_exit_scc() w/o accompanying maybe_enter_scc() call.
+ */
+SEC("socket")
+__arch_x86_64
+__caps_unpriv(CAP_BPF)
+__naked void maybe_exit_scc_bug1(void)
+{
+	asm volatile (
+	"r0 = 100;"
+"1:"
+	/* Speculative execution path reaches and stops here. */
+	"*(u64 *)(r10 - 512) = r0;"
+	/* Condition is always false, but verifier speculatively executes the true branch. */
+	"if r0 <= 0x0 goto 1b;"
+	"exit;"
+	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_lsm.c b/tools/testing/selftests/bpf/progs/verifier_lsm.c
new file mode 100644
index 000000000000..6af9100a37ff
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_lsm.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("lsm/file_permission")
+__description("lsm bpf prog with -4095~0 retval. test 1")
+__success
+__naked int errno_zero_retval_test1(void *ctx)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_permission")
+__description("lsm bpf prog with -4095~0 retval. test 2")
+__success
+__naked int errno_zero_retval_test2(void *ctx)
+{
+	asm volatile (
+	"r0 = -4095;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_mprotect")
+__description("lsm bpf prog with -4095~0 retval. test 4")
+__failure __msg("R0 has smin=-4096 smax=-4096 should have been in [-4095, 0]")
+__naked int errno_zero_retval_test4(void *ctx)
+{
+	asm volatile (
+	"r0 = -4096;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_mprotect")
+__description("lsm bpf prog with -4095~0 retval. test 5")
+__failure __msg("R0 has smin=4096 smax=4096 should have been in [-4095, 0]")
+__naked int errno_zero_retval_test5(void *ctx)
+{
+	asm volatile (
+	"r0 = 4096;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_mprotect")
+__description("lsm bpf prog with -4095~0 retval. test 6")
+__failure __msg("R0 has smin=1 smax=1 should have been in [-4095, 0]")
+__naked int errno_zero_retval_test6(void *ctx)
+{
+	asm volatile (
+	"r0 = 1;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/audit_rule_known")
+__description("lsm bpf prog with bool retval. test 1")
+__success
+__naked int bool_retval_test1(void *ctx)
+{
+	asm volatile (
+	"r0 = 1;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/audit_rule_known")
+__description("lsm bpf prog with bool retval. test 2")
+__success
+__success
+__naked int bool_retval_test2(void *ctx)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/audit_rule_known")
+__description("lsm bpf prog with bool retval. test 3")
+__failure __msg("R0 has smin=-1 smax=-1 should have been in [0, 1]")
+__naked int bool_retval_test3(void *ctx)
+{
+	asm volatile (
+	"r0 = -1;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/audit_rule_known")
+__description("lsm bpf prog with bool retval. test 4")
+__failure __msg("R0 has smin=2 smax=2 should have been in [0, 1]")
+__naked int bool_retval_test4(void *ctx)
+{
+	asm volatile (
+	"r0 = 2;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_free_security")
+__success
+__description("lsm bpf prog with void retval. test 1")
+__naked int void_retval_test1(void *ctx)
+{
+	asm volatile (
+	"r0 = -4096;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/file_free_security")
+__success
+__description("lsm bpf prog with void retval. test 2")
+__naked int void_retval_test2(void *ctx)
+{
+	asm volatile (
+	"r0 = 4096;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/getprocattr")
+__description("lsm disabled hook: getprocattr")
+__failure __msg("points to disabled hook")
+__naked int disabled_hook_test1(void *ctx)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/setprocattr")
+__description("lsm disabled hook: setprocattr")
+__failure __msg("points to disabled hook")
+__naked int disabled_hook_test2(void *ctx)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm/ismaclabel")
+__description("lsm disabled hook: ismaclabel")
+__failure __msg("points to disabled hook")
+__naked int disabled_hook_test3(void *ctx)
+{
+	asm volatile (
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_lwt.c b/tools/testing/selftests/bpf/progs/verifier_lwt.c
new file mode 100644
index 000000000000..5ab746307309
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_lwt.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/lwt.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("lwt_in")
+__description("invalid direct packet write for LWT_IN")
+__failure __msg("cannot write into packet")
+__naked void packet_write_for_lwt_in(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_out")
+__description("invalid direct packet write for LWT_OUT")
+__failure __msg("cannot write into packet")
+__naked void packet_write_for_lwt_out(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_xmit")
+__description("direct packet write for LWT_XMIT")
+__success __retval(0)
+__naked void packet_write_for_lwt_xmit(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	*(u8*)(r2 + 0) = r2;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("direct packet read for LWT_IN")
+__success __retval(0)
+__naked void packet_read_for_lwt_in(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_out")
+__description("direct packet read for LWT_OUT")
+__success __retval(0)
+__naked void packet_read_for_lwt_out(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_xmit")
+__description("direct packet read for LWT_XMIT")
+__success __retval(0)
+__naked void packet_read_for_lwt_xmit(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_xmit")
+__description("overlapping checks for direct packet access")
+__success __retval(0)
+__naked void checks_for_direct_packet_access(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u16*)(r2 + 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("lwt_xmit")
+__description("make headroom for LWT_XMIT")
+__success __retval(0)
+__naked void make_headroom_for_lwt_xmit(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r2 = 34;					\
+	r3 = 0;						\
+	call %[bpf_skb_change_head];			\
+	/* split for s390 to succeed */			\
+	r1 = r6;					\
+	r2 = 42;					\
+	r3 = 0;						\
+	call %[bpf_skb_change_head];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_skb_change_head)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid access of tc_classid for LWT_IN")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void tc_classid_for_lwt_in(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_tc_classid]);	\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tc_classid, offsetof(struct __sk_buff, tc_classid))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid access of tc_classid for LWT_OUT")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void tc_classid_for_lwt_out(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_tc_classid]);	\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tc_classid, offsetof(struct __sk_buff, tc_classid))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid access of tc_classid for LWT_XMIT")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv
+__naked void tc_classid_for_lwt_xmit(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_tc_classid]);	\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_tc_classid, offsetof(struct __sk_buff, tc_classid))
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("check skb->tc_classid half load not permitted for lwt prog")
+__failure __msg("invalid bpf_context access")
+__naked void not_permitted_for_lwt_prog(void)
+{
+	asm volatile (
+	"r0 = 0;"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(u16*)(r1 + %[__sk_buff_tc_classid]);"
+#else
+	"r0 = *(u16*)(r1 + %[__imm_0]);"
+#endif
+	"exit;"
+	:
+	: __imm_const(__imm_0, offsetof(struct __sk_buff, tc_classid) + 2),
+	  __imm_const(__sk_buff_tc_classid, offsetof(struct __sk_buff, tc_classid))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_map_in_map.c b/tools/testing/selftests/bpf/progs/verifier_map_in_map.c
new file mode 100644
index 000000000000..16b761e510f0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_map_in_map.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/map_in_map.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_ARRAY);
+		__uint(max_entries, 1);
+		__type(key, int);
+		__type(value, int);
+	});
+} map_in_map SEC(".maps");
+
+SEC("socket")
+__description("map in map access")
+__success __success_unpriv __retval(0)
+__naked void map_in_map_access(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = r0;					\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("map in map state pruning")
+__success __msg("processed 15 insns")
+__log_level(2) __retval(0) __flag(BPF_F_TEST_STATE_FREQ)
+__naked void map_in_map_state_pruning(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r6 = r10;					\
+	r6 += -4;					\
+	r2 = r6;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r2 = r6;					\
+	r1 = r0;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l1_%=;				\
+	r2 = r6;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l2_%=;				\
+	exit;						\
+l2_%=:	r2 = r6;					\
+	r1 = r0;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid inner map pointer")
+__failure __msg("R1 pointer arithmetic on map_ptr prohibited")
+__failure_unpriv
+__naked void invalid_inner_map_pointer(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = r0;					\
+	r1 += 8;					\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("forgot null checking on the inner map pointer")
+__failure __msg("R1 type=map_value_or_null expected=map_ptr")
+__failure_unpriv
+__naked void on_the_inner_map_pointer(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = r0;					\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map_ptr is never null")
+__success
+__naked void map_ptr_is_never_null(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = %[map_in_map] ll;				\
+	if r1 != 0 goto l0_%=;				\
+	r10 = 42;					\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map_ptr is never null inner")
+__success
+__naked void map_ptr_is_never_null_inner(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	if r0 != 0 goto l0_%=;				\
+	r10 = 42;					\
+l0_%=:  exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map_ptr is never null inner spill fill")
+__success
+__naked void map_ptr_is_never_null_inner_spill_fill(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_in_map] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	*(u64 *)(r10 -16) = r0;				\
+	r1 = *(u64 *)(r10 -16);				\
+	if r1 == 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r10 = 42;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_RINGBUF);
+		__uint(max_entries, 64 * 1024);
+	});
+} rb_in_map SEC(".maps");
+
+struct rb_ctx {
+	void *rb;
+	struct bpf_dynptr dptr;
+};
+
+static __always_inline struct rb_ctx __rb_event_reserve(__u32 sz)
+{
+	struct rb_ctx rb_ctx = {};
+	void *rb;
+	__u32 cpu = bpf_get_smp_processor_id();
+	__u32 rb_slot = cpu & 1;
+
+	rb = bpf_map_lookup_elem(&rb_in_map, &rb_slot);
+	if (!rb)
+		return rb_ctx;
+
+	rb_ctx.rb = rb;
+	bpf_ringbuf_reserve_dynptr(rb, sz, 0, &rb_ctx.dptr);
+
+	return rb_ctx;
+}
+
+static __noinline void __rb_event_submit(struct rb_ctx *ctx)
+{
+	if (!ctx->rb)
+		return;
+
+	/* If the verifier (incorrectly) concludes that ctx->rb can be
+	 * NULL at this point, we'll get "BPF_EXIT instruction in main
+	 * prog would lead to reference leak" error
+	 */
+	bpf_ringbuf_submit_dynptr(&ctx->dptr, 0);
+}
+
+SEC("socket")
+int map_ptr_is_never_null_rb(void *ctx)
+{
+	struct rb_ctx event_ctx = __rb_event_reserve(256);
+	__rb_event_submit(&event_ctx);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_map_ptr.c b/tools/testing/selftests/bpf/progs/verifier_map_ptr.c
new file mode 100644
index 000000000000..e2767d27d8aa
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_map_ptr.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/map_ptr.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+struct other_val {
+	long long foo;
+	long long bar;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct other_val);
+} map_hash_16b SEC(".maps");
+
+SEC("socket")
+__description("bpf_map_ptr: read with negative offset rejected")
+__failure __msg("R1 is bpf_array invalid negative access: off=-8")
+__failure_unpriv
+__msg_unpriv("access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN")
+__naked void read_with_negative_offset_rejected(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 = %[map_array_48b] ll;			\
+	r6 = *(u64*)(r1 - 8);				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bpf_map_ptr: write rejected")
+__failure __msg("only read from bpf_array is supported")
+__failure_unpriv
+__msg_unpriv("access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN")
+__naked void bpf_map_ptr_write_rejected(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	*(u64*)(r1 + 0) = r2;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+/* The first element of struct bpf_map is a SHA256 hash of 32 bytes, accessing
+ * into this array is valid. The opts field is now at offset 33.
+ */
+SEC("socket")
+__description("bpf_map_ptr: read non-existent field rejected")
+__failure
+__msg("cannot access ptr member ops with moff 32 in struct bpf_map with off 33 size 4")
+__failure_unpriv
+__msg_unpriv("access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void read_non_existent_field_rejected(void)
+{
+	asm volatile ("					\
+	r6 = 0;						\
+	r1 = %[map_array_48b] ll;			\
+	r6 = *(u32*)(r1 + 33);				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bpf_map_ptr: read ops field accepted")
+__success __failure_unpriv
+__msg_unpriv("access is allowed only to CAP_PERFMON and CAP_SYS_ADMIN")
+__retval(1)
+__naked void ptr_read_ops_field_accepted(void)
+{
+	asm volatile ("					\
+	r6 = 0;						\
+	r1 = %[map_array_48b] ll;			\
+	r6 = *(u64*)(r1 + 0);				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bpf_map_ptr: r = 0, map_ptr = map_ptr + r")
+__success __failure_unpriv
+__msg_unpriv("R1 has pointer with unsupported alu operation")
+__retval(0)
+__naked void map_ptr_map_ptr_r(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r0 = 0;						\
+	r1 = %[map_hash_16b] ll;			\
+	r1 += r0;					\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("bpf_map_ptr: r = 0, r = r + map_ptr")
+__success __failure_unpriv
+__msg_unpriv("R0 has pointer with unsupported alu operation")
+__retval(0)
+__naked void _0_r_r_map_ptr(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	r0 = %[map_hash_16b] ll;			\
+	r1 += r0;					\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_16b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_map_ptr_mixing.c b/tools/testing/selftests/bpf/progs/verifier_map_ptr_mixing.c
new file mode 100644
index 000000000000..c5a7c1ddc562
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_map_ptr_mixing.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/map_ptr_mixing.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_ARRAY);
+		__uint(max_entries, 1);
+		__type(key, int);
+		__type(value, int);
+	});
+} map_in_map SEC(".maps");
+
+void dummy_prog_42_socket(void);
+void dummy_prog_24_socket(void);
+void dummy_prog_loop1_socket(void);
+void dummy_prog_loop2_socket(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 4);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog1_socket SEC(".maps") = {
+	.values = {
+		[0] = (void *)&dummy_prog_42_socket,
+		[1] = (void *)&dummy_prog_loop1_socket,
+		[2] = (void *)&dummy_prog_24_socket,
+	},
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 8);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog2_socket SEC(".maps") = {
+	.values = {
+		[1] = (void *)&dummy_prog_loop2_socket,
+		[2] = (void *)&dummy_prog_24_socket,
+		[7] = (void *)&dummy_prog_42_socket,
+	},
+};
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_42_socket(void)
+{
+	asm volatile ("r0 = 42; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_24_socket(void)
+{
+	asm volatile ("r0 = 24; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_loop1_socket(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog1_socket] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_loop2_socket(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog2_socket] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog2_socket)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("calls: two calls returning different map pointers for lookup (hash, array)")
+__success __retval(1)
+__naked void pointers_for_lookup_hash_array(void)
+{
+	asm volatile ("					\
+	/* main prog */					\
+	if r1 != 0 goto l0_%=;				\
+	call pointers_for_lookup_hash_array__1;		\
+	goto l1_%=;					\
+l0_%=:	call pointers_for_lookup_hash_array__2;		\
+l1_%=:	r1 = r0;					\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+	r0 = 1;						\
+l2_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void pointers_for_lookup_hash_array__1(void)
+{
+	asm volatile ("					\
+	r0 = %[map_hash_48b] ll;			\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void pointers_for_lookup_hash_array__2(void)
+{
+	asm volatile ("					\
+	r0 = %[map_array_48b] ll;			\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("calls: two calls returning different map pointers for lookup (hash, map in map)")
+__failure __msg("only read from bpf_array is supported")
+__naked void lookup_hash_map_in_map(void)
+{
+	asm volatile ("					\
+	/* main prog */					\
+	if r1 != 0 goto l0_%=;				\
+	call lookup_hash_map_in_map__1;			\
+	goto l1_%=;					\
+l0_%=:	call lookup_hash_map_in_map__2;			\
+l1_%=:	r1 = r0;					\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+	r0 = 1;						\
+l2_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void lookup_hash_map_in_map__1(void)
+{
+	asm volatile ("					\
+	r0 = %[map_array_48b] ll;			\
+	exit;						\
+"	:
+	: __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void lookup_hash_map_in_map__2(void)
+{
+	asm volatile ("					\
+	r0 = %[map_in_map] ll;				\
+	exit;						\
+"	:
+	: __imm_addr(map_in_map)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("cond: two branches returning different map pointers for lookup (tail, tail)")
+__success __failure_unpriv __msg_unpriv("tail_call abusing map_ptr")
+__retval(42)
+__naked void pointers_for_lookup_tail_tail_1(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	if r6 != 0 goto l0_%=;				\
+	r2 = %[map_prog2_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r2 = %[map_prog1_socket] ll;			\
+l1_%=:	r3 = 7;						\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_addr(map_prog2_socket),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("cond: two branches returning same map pointers for lookup (tail, tail)")
+__success __success_unpriv __retval(42)
+__naked void pointers_for_lookup_tail_tail_2(void)
+{
+	asm volatile ("					\
+	r6 = *(u32*)(r1 + %[__sk_buff_mark]);		\
+	if r6 == 0 goto l0_%=;				\
+	r2 = %[map_prog2_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r2 = %[map_prog2_socket] ll;			\
+l1_%=:	r3 = 7;						\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog2_socket),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_map_ret_val.c b/tools/testing/selftests/bpf/progs/verifier_map_ret_val.c
new file mode 100644
index 000000000000..1639628b832d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_map_ret_val.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/map_ret_val.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("invalid map_fd for function call")
+__failure __msg("fd 0 is not pointing to valid bpf_map")
+__failure_unpriv
+__naked void map_fd_for_function_call(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	.8byte %[ld_map_fd];				\
+	.8byte 0;					\
+	call %[bpf_map_delete_elem];			\
+	exit;						\
+"	:
+	: __imm(bpf_map_delete_elem),
+	  __imm_insn(ld_map_fd, BPF_RAW_INSN(BPF_LD | BPF_DW | BPF_IMM, BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("don't check return value before access")
+__failure __msg("R0 invalid mem access 'map_value_or_null'")
+__failure_unpriv
+__naked void check_return_value_before_access(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r1 = 0;						\
+	*(u64*)(r0 + 0) = r1;				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("access memory with incorrect alignment")
+__failure __msg("misaligned value access")
+__failure_unpriv
+__flag(BPF_F_STRICT_ALIGNMENT)
+__naked void access_memory_with_incorrect_alignment_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r0 + 4) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sometimes access memory with incorrect alignment")
+__failure __msg("R0 invalid mem access")
+__msg_unpriv("R0 leaks addr")
+__flag(BPF_F_STRICT_ALIGNMENT)
+__naked void access_memory_with_incorrect_alignment_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r0 + 0) = r1;				\
+	exit;						\
+l0_%=:	r1 = 1;						\
+	*(u64*)(r0 + 0) = r1;				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_masking.c b/tools/testing/selftests/bpf/progs/verifier_masking.c
new file mode 100644
index 000000000000..5732cc1b4c47
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_masking.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/masking.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("masking, test out of bounds 1")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_1(void)
+{
+	asm volatile ("					\
+	w1 = 5;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 5 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 2")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_2(void)
+{
+	asm volatile ("					\
+	w1 = 1;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 3")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_3(void)
+{
+	asm volatile ("					\
+	w1 = 0xffffffff;				\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 4")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_4(void)
+{
+	asm volatile ("					\
+	w1 = 0xffffffff;				\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 5")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_5(void)
+{
+	asm volatile ("					\
+	w1 = -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 6")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_6(void)
+{
+	asm volatile ("					\
+	w1 = -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 7")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_7(void)
+{
+	asm volatile ("					\
+	r1 = 5;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 5 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 8")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_8(void)
+{
+	asm volatile ("					\
+	r1 = 1;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 9")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_9(void)
+{
+	asm volatile ("					\
+	r1 = 0xffffffff;				\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 10")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_10(void)
+{
+	asm volatile ("					\
+	r1 = 0xffffffff;				\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 11")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_11(void)
+{
+	asm volatile ("					\
+	r1 = -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test out of bounds 12")
+__success __success_unpriv __retval(0)
+__naked void test_out_of_bounds_12(void)
+{
+	asm volatile ("					\
+	r1 = -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 1")
+__success __success_unpriv __retval(4)
+__naked void masking_test_in_bounds_1(void)
+{
+	asm volatile ("					\
+	w1 = 4;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 5 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 2")
+__success __success_unpriv __retval(0)
+__naked void masking_test_in_bounds_2(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 3")
+__success __success_unpriv __retval(0xfffffffe)
+__naked void masking_test_in_bounds_3(void)
+{
+	asm volatile ("					\
+	w1 = 0xfffffffe;				\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xffffffff - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 4")
+__success __success_unpriv __retval(0xabcde)
+__naked void masking_test_in_bounds_4(void)
+{
+	asm volatile ("					\
+	w1 = 0xabcde;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 0xabcdef - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 5")
+__success __success_unpriv __retval(0)
+__naked void masking_test_in_bounds_5(void)
+{
+	asm volatile ("					\
+	w1 = 0;						\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 1 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 6")
+__success __success_unpriv __retval(46)
+__naked void masking_test_in_bounds_6(void)
+{
+	asm volatile ("					\
+	w1 = 46;					\
+	w2 = %[__imm_0];				\
+	r2 -= r1;					\
+	r2 |= r1;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r1 &= r2;					\
+	r0 = r1;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 47 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 7")
+__success __success_unpriv __retval(46)
+__naked void masking_test_in_bounds_7(void)
+{
+	asm volatile ("					\
+	r3 = -46;					\
+	r3 *= -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r3;					\
+	r2 |= r3;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r3 &= r2;					\
+	r0 = r3;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 47 - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("masking, test in bounds 8")
+__success __success_unpriv __retval(0)
+__naked void masking_test_in_bounds_8(void)
+{
+	asm volatile ("					\
+	r3 = -47;					\
+	r3 *= -1;					\
+	w2 = %[__imm_0];				\
+	r2 -= r3;					\
+	r2 |= r3;					\
+	r2 = -r2;					\
+	r2 s>>= 63;					\
+	r3 &= r2;					\
+	r0 = r3;					\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, 47 - 1)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c b/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c
new file mode 100644
index 000000000000..6d1edaef9213
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_may_goto_1.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+SEC("raw_tp")
+__description("may_goto 0")
+__arch_x86_64
+__arch_s390x
+__arch_arm64
+__xlated("0: r0 = 1")
+__xlated("1: exit")
+__success
+__naked void may_goto_simple(void)
+{
+	asm volatile (
+	".8byte %[may_goto];"
+	"r0 = 1;"
+	".8byte %[may_goto];"
+	"exit;"
+	:
+	: __imm_insn(may_goto, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 0 /* offset */, 0))
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__description("batch 2 of may_goto 0")
+__arch_x86_64
+__arch_s390x
+__arch_arm64
+__xlated("0: r0 = 1")
+__xlated("1: exit")
+__success
+__naked void may_goto_batch_0(void)
+{
+	asm volatile (
+	".8byte %[may_goto1];"
+	".8byte %[may_goto1];"
+	"r0 = 1;"
+	".8byte %[may_goto1];"
+	".8byte %[may_goto1];"
+	"exit;"
+	:
+	: __imm_insn(may_goto1, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 0 /* offset */, 0))
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__description("may_goto batch with offsets 2/1/0")
+__arch_x86_64
+__arch_s390x
+__arch_arm64
+__xlated("0: r0 = 1")
+__xlated("1: exit")
+__success
+__naked void may_goto_batch_1(void)
+{
+	asm volatile (
+	".8byte %[may_goto1];"
+	".8byte %[may_goto2];"
+	".8byte %[may_goto3];"
+	"r0 = 1;"
+	".8byte %[may_goto1];"
+	".8byte %[may_goto2];"
+	".8byte %[may_goto3];"
+	"exit;"
+	:
+	: __imm_insn(may_goto1, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 2 /* offset */, 0)),
+	  __imm_insn(may_goto2, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 1 /* offset */, 0)),
+	  __imm_insn(may_goto3, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 0 /* offset */, 0))
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__description("may_goto batch with offsets 2/0")
+__arch_x86_64
+__arch_s390x
+__arch_arm64
+__xlated("0: *(u64 *)(r10 -16) = 65535")
+__xlated("1: *(u64 *)(r10 -8) = 0")
+__xlated("2: r11 = *(u64 *)(r10 -16)")
+__xlated("3: if r11 == 0x0 goto pc+6")
+__xlated("4: r11 -= 1")
+__xlated("5: if r11 != 0x0 goto pc+2")
+__xlated("6: r11 = -16")
+__xlated("7: call unknown")
+__xlated("8: *(u64 *)(r10 -16) = r11")
+__xlated("9: r0 = 1")
+__xlated("10: r0 = 2")
+__xlated("11: exit")
+__success
+__naked void may_goto_batch_2(void)
+{
+	asm volatile (
+	".8byte %[may_goto1];"
+	".8byte %[may_goto3];"
+	"r0 = 1;"
+	"r0 = 2;"
+	"exit;"
+	:
+	: __imm_insn(may_goto1, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 2 /* offset */, 0)),
+	  __imm_insn(may_goto3, BPF_RAW_INSN(BPF_JMP | BPF_JCOND, 0, 0, 0 /* offset */, 0))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_may_goto_2.c b/tools/testing/selftests/bpf/progs/verifier_may_goto_2.c
new file mode 100644
index 000000000000..b891faf50660
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_may_goto_2.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+int gvar;
+
+SEC("raw_tp")
+__description("C code with may_goto 0")
+__success
+int may_goto_c_code(void)
+{
+	int i, tmp[3];
+
+	for (i = 0; i < 3 && can_loop; i++)
+		tmp[i] = 0;
+
+	for (i = 0; i < 3 && can_loop; i++)
+		tmp[i] = gvar - i;
+
+	for (i = 0; i < 3 && can_loop; i++)
+		gvar += tmp[i];
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_meta_access.c b/tools/testing/selftests/bpf/progs/verifier_meta_access.c
new file mode 100644
index 000000000000..d81722fb5f19
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_meta_access.c
@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/meta_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("meta access, test1")
+__success __retval(0)
+__naked void meta_access_test1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test2")
+__failure __msg("invalid access to packet, off=-8")
+__naked void meta_access_test2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r2;					\
+	r0 -= 8;					\
+	r4 = r2;					\
+	r4 += 8;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test3")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r0 = r2;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test4")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r4 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r4;					\
+	r0 += 8;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test5")
+__failure __msg("R3 !read_ok")
+__naked void meta_access_test5(void)
+{
+	asm volatile ("					\
+	r3 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r4 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r3;					\
+	r0 += 8;					\
+	if r0 > r4 goto l0_%=;				\
+	r2 = -8;					\
+	call %[bpf_xdp_adjust_meta];			\
+	r0 = *(u8*)(r3 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_xdp_adjust_meta),
+	  __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test6")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test6(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r3;					\
+	r0 += 8;					\
+	r4 = r2;					\
+	r4 += 8;					\
+	if r4 > r0 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test7")
+__success __retval(0)
+__naked void meta_access_test7(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r0 = r3;					\
+	r0 += 8;					\
+	r4 = r2;					\
+	r4 += 8;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test8")
+__success __retval(0)
+__naked void meta_access_test8(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r4 = r2;					\
+	r4 += 0xFFFF;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test9")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test9(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r4 = r2;					\
+	r4 += 0xFFFF;					\
+	r4 += 1;					\
+	if r4 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test10")
+__failure __msg("invalid access to packet")
+__naked void meta_access_test10(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r4 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r5 = 42;					\
+	r6 = 24;					\
+	*(u64*)(r10 - 8) = r5;				\
+	lock *(u64 *)(r10 - 8) += r6;			\
+	r5 = *(u64*)(r10 - 8);				\
+	if r5 > 100 goto l0_%=;				\
+	r3 += r5;					\
+	r5 = r3;					\
+	r6 = r2;					\
+	r6 += 8;					\
+	if r6 > r5 goto l0_%=;				\
+	r2 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test11")
+__success __retval(0)
+__naked void meta_access_test11(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r5 = 42;					\
+	r6 = 24;					\
+	*(u64*)(r10 - 8) = r5;				\
+	lock *(u64 *)(r10 - 8) += r6;			\
+	r5 = *(u64*)(r10 - 8);				\
+	if r5 > 100 goto l0_%=;				\
+	r2 += r5;					\
+	r5 = r2;					\
+	r6 = r2;					\
+	r6 += 8;					\
+	if r6 > r3 goto l0_%=;				\
+	r5 = *(u8*)(r5 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("meta access, test12")
+__success __retval(0)
+__naked void meta_access_test12(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r4 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r5 = r3;					\
+	r5 += 16;					\
+	if r5 > r4 goto l0_%=;				\
+	r0 = *(u8*)(r3 + 0);				\
+	r5 = r2;					\
+	r5 += 16;					\
+	if r5 > r3 goto l0_%=;				\
+	r0 = *(u8*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_movsx.c b/tools/testing/selftests/bpf/progs/verifier_movsx.c
new file mode 100644
index 000000000000..a4d8814eb5ed
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_movsx.c
@@ -0,0 +1,354 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
+	defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \
+	defined(__TARGET_ARCH_loongarch)) && \
+	__clang_major__ >= 18
+
+SEC("socket")
+__description("MOV32SX, S8")
+__success __success_unpriv __retval(0x23)
+__naked void mov32sx_s8(void)
+{
+	asm volatile ("					\
+	w0 = 0xff23;					\
+	w0 = (s8)w0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S16")
+__success __success_unpriv __retval(0xFFFFff23)
+__naked void mov32sx_s16(void)
+{
+	asm volatile ("					\
+	w0 = 0xff23;					\
+	w0 = (s16)w0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S8")
+__success __success_unpriv __retval(-2)
+__naked void mov64sx_s8(void)
+{
+	asm volatile ("					\
+	r0 = 0x1fe;					\
+	r0 = (s8)r0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S16")
+__success __success_unpriv __retval(0xf23)
+__naked void mov64sx_s16(void)
+{
+	asm volatile ("					\
+	r0 = 0xf0f23;					\
+	r0 = (s16)r0;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S32")
+__success __success_unpriv __retval(-1)
+__naked void mov64sx_s32(void)
+{
+	asm volatile ("					\
+	r0 = 0xfffffffe;				\
+	r0 = (s32)r0;					\
+	r0 >>= 1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S8, range_check")
+__success __success_unpriv __retval(1)
+__naked void mov32sx_s8_range(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	w1 = (s8)w0;					\
+	/* w1 with s8 range */				\
+	if w1 s> 0x7f goto l0_%=;			\
+	if w1 s< -0x80 goto l0_%=;			\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S16, range_check")
+__success __success_unpriv __retval(1)
+__naked void mov32sx_s16_range(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	w1 = (s16)w0;					\
+	/* w1 with s16 range */				\
+	if w1 s> 0x7fff goto l0_%=;			\
+	if w1 s< -0x80ff goto l0_%=;			\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S16, range_check 2")
+__success __success_unpriv __retval(1)
+__naked void mov32sx_s16_range_2(void)
+{
+	asm volatile ("					\
+	r1 = 65535;					\
+	w2 = (s16)w1;					\
+	r2 >>= 1;					\
+	if r2 != 0x7fffFFFF goto l0_%=;			\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 0;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S8, range_check")
+__success __success_unpriv __retval(1)
+__naked void mov64sx_s8_range(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = (s8)r0;					\
+	/* r1 with s8 range */				\
+	if r1 s> 0x7f goto l0_%=;			\
+	if r1 s< -0x80 goto l0_%=;			\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S16, range_check")
+__success __success_unpriv __retval(1)
+__naked void mov64sx_s16_range(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = (s16)r0;					\
+	/* r1 with s16 range */				\
+	if r1 s> 0x7fff goto l0_%=;			\
+	if r1 s< -0x8000 goto l0_%=;			\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S32, range_check")
+__success __success_unpriv __retval(1)
+__naked void mov64sx_s32_range(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = (s32)r0;					\
+	/* r1 with s32 range */				\
+	if r1 s> 0x7fffffff goto l0_%=;			\
+	if r1 s< -0x80000000 goto l0_%=;		\
+	r0 = 1;						\
+l1_%=:							\
+	exit;						\
+l0_%=:							\
+	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S16, R10 Sign Extension")
+__failure __msg("R1 type=scalar expected=fp, pkt, pkt_meta, map_key, map_value, mem, ringbuf_mem, buf, trusted_ptr_")
+__failure_unpriv __msg_unpriv("R10 sign-extension part of pointer")
+__naked void mov64sx_s16_r10(void)
+{
+	asm volatile ("					\
+	r1 = 553656332;					\
+	*(u32 *)(r10 - 8) = r1; 			\
+	r1 = (s16)r10;					\
+	r1 += -8;					\
+	r2 = 3;						\
+	if r2 <= r1 goto l0_%=;				\
+l0_%=:							\
+	call %[bpf_trace_printk];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_trace_printk)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S8, var_off u32_max")
+__failure __msg("infinite loop detected")
+__failure_unpriv __msg_unpriv("back-edge from insn 2 to 0")
+__naked void mov64sx_s32_varoff_1(void)
+{
+	asm volatile ("					\
+l0_%=:							\
+	r3 = *(u8 *)(r10 -387);				\
+	w7 = (s8)w3;					\
+	if w7 >= 0x2533823b goto l0_%=;			\
+	w0 = 0;						\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S8, var_off not u32_max, positive after s8 extension")
+__success __retval(0)
+__success_unpriv
+#ifdef SPEC_V1
+__xlated_unpriv("w0 = 0")
+__xlated_unpriv("exit")
+__xlated_unpriv("nospec") /* inserted to prevent `frame pointer is read only` */
+__xlated_unpriv("goto pc-1")
+#endif
+__naked void mov64sx_s32_varoff_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r3 = r0;					\
+	r3 &= 0xf;					\
+	w7 = (s8)w3;					\
+	if w7 s>= 16 goto l0_%=;			\
+	w0 = 0;						\
+	exit;						\
+l0_%=:							\
+	r10 = 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S8, var_off not u32_max, negative after s8 extension")
+__success __retval(0)
+__success_unpriv
+#ifdef SPEC_V1
+__xlated_unpriv("w0 = 0")
+__xlated_unpriv("exit")
+__xlated_unpriv("nospec") /* inserted to prevent `frame pointer is read only` */
+__xlated_unpriv("goto pc-1")
+#endif
+__naked void mov64sx_s32_varoff_3(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r3 = r0;					\
+	r3 &= 0xf;					\
+	r3 |= 0x80;					\
+	w7 = (s8)w3;					\
+	if w7 s>= -5 goto l0_%=;			\
+	w0 = 0;						\
+	exit;						\
+l0_%=:							\
+	r10 = 1;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV64SX, S8, unsigned range_check")
+__success __retval(0)
+__naked void mov64sx_s8_range_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x1;					\
+	r0 += 0xfe;					\
+	r0 = (s8)r0;					\
+	if r0 < 0xfffffffffffffffe goto label_%=;	\
+	r0 = 0;						\
+	exit;						\
+label_%=:						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("MOV32SX, S8, unsigned range_check")
+__success __retval(0)
+__naked void mov32sx_s8_range_check(void)
+{
+	asm volatile ("                                 \
+	call %[bpf_get_prandom_u32];                    \
+	w0 &= 0x1;                                      \
+	w0 += 0xfe;                                     \
+	w0 = (s8)w0;                                    \
+	if w0 < 0xfffffffe goto label_%=;               \
+	r0 = 0;                                         \
+	exit;                                           \
+label_%=: 	                                        \
+	exit;                                           \
+	"      :
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+#else
+
+SEC("socket")
+__description("cpuv4 is not supported by compiler or jit, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_mtu.c b/tools/testing/selftests/bpf/progs/verifier_mtu.c
new file mode 100644
index 000000000000..256956ea1ac5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_mtu.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("tc/ingress")
+__description("uninit/mtu: write rejected")
+__success
+__caps_unpriv(CAP_BPF|CAP_NET_ADMIN)
+__failure_unpriv __msg_unpriv("invalid read from stack")
+int tc_uninit_mtu(struct __sk_buff *ctx)
+{
+	__u32 mtu;
+
+	bpf_check_mtu(ctx, 0, &mtu, 0, 0);
+	return TCX_PASS;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_mul.c b/tools/testing/selftests/bpf/progs/verifier_mul.c
new file mode 100644
index 000000000000..7145fe3351d5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_mul.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Nandakumar Edamana */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include "bpf_misc.h"
+
+/* Intended to test the abstract multiplication technique(s) used by
+ * the verifier. Using assembly to avoid compiler optimizations.
+ */
+SEC("fentry/bpf_fentry_test1")
+void BPF_PROG(mul_precise, int x)
+{
+	/* First, force the verifier to be uncertain about the value:
+	 *     unsigned int a = (bpf_get_prandom_u32() & 0x2) | 0x1;
+	 *
+	 * Assuming the verifier is using tnum, a must be tnum{.v=0x1, .m=0x2}.
+	 * Then a * 0x3 would be m0m1 (m for uncertain). Added imprecision
+	 * would cause the following to fail, because the required return value
+	 * is 0:
+	 *     return (a * 0x3) & 0x4);
+	 */
+	asm volatile ("\
+	call %[bpf_get_prandom_u32];\
+	r0 &= 0x2;\
+	r0 |= 0x1;\
+	r0 *= 0x3;\
+	r0 &= 0x4;\
+	if r0 != 0 goto l0_%=;\
+	r0 = 0;\
+	goto l1_%=;\
+l0_%=:\
+	r0 = 1;\
+l1_%=:\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_netfilter_ctx.c b/tools/testing/selftests/bpf/progs/verifier_netfilter_ctx.c
new file mode 100644
index 000000000000..e2cbc5bda65e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_netfilter_ctx.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include "bpf_misc.h"
+
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("netfilter")
+__description("netfilter invalid context access, size too short")
+__failure __msg("invalid bpf_context access")
+__naked void with_invalid_ctx_access_test1(void)
+{
+	asm volatile ("					\
+	r2 = *(u8*)(r1 + %[__bpf_nf_ctx_state]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__bpf_nf_ctx_state, offsetof(struct bpf_nf_ctx, state))
+	: __clobber_all);
+}
+
+SEC("netfilter")
+__description("netfilter invalid context access, size too short")
+__failure __msg("invalid bpf_context access")
+__naked void with_invalid_ctx_access_test2(void)
+{
+	asm volatile ("					\
+	r2 = *(u16*)(r1 + %[__bpf_nf_ctx_skb]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__bpf_nf_ctx_skb, offsetof(struct bpf_nf_ctx, skb))
+	: __clobber_all);
+}
+
+SEC("netfilter")
+__description("netfilter invalid context access, past end of ctx")
+__failure __msg("invalid bpf_context access")
+__naked void with_invalid_ctx_access_test3(void)
+{
+	asm volatile ("					\
+	r2 = *(u64*)(r1 + %[__bpf_nf_ctx_size]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__bpf_nf_ctx_size, sizeof(struct bpf_nf_ctx))
+	: __clobber_all);
+}
+
+SEC("netfilter")
+__description("netfilter invalid context, write")
+__failure __msg("invalid bpf_context access")
+__naked void with_invalid_ctx_access_test4(void)
+{
+	asm volatile ("					\
+	r2 = r1;					\
+	*(u64*)(r2 + 0) = r1;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(__bpf_nf_ctx_skb, offsetof(struct bpf_nf_ctx, skb))
+	: __clobber_all);
+}
+
+#define NF_DROP 0
+#define NF_ACCEPT 1
+
+SEC("netfilter")
+__description("netfilter valid context read and invalid write")
+__failure __msg("only read is supported")
+int with_invalid_ctx_access_test5(struct bpf_nf_ctx *ctx)
+{
+	struct nf_hook_state *state = (void *)ctx->state;
+
+	state->sk = NULL;
+	return NF_ACCEPT;
+}
+
+SEC("netfilter")
+__description("netfilter test prog with skb and state read access")
+__success __failure_unpriv
+__retval(0)
+int with_valid_ctx_access_test6(struct bpf_nf_ctx *ctx)
+{
+	struct __sk_buff *skb = (struct __sk_buff *)ctx->skb;
+	const struct nf_hook_state *state = ctx->state;
+	const struct iphdr *iph;
+	const struct tcphdr *th;
+	u8 buffer_iph[20] = {};
+	u8 buffer_th[40] = {};
+	struct bpf_dynptr ptr;
+	uint8_t ihl;
+
+	if (ctx->skb->len <= 20 || bpf_dynptr_from_skb(skb, 0, &ptr))
+		return NF_ACCEPT;
+
+	iph = bpf_dynptr_slice(&ptr, 0, buffer_iph, sizeof(buffer_iph));
+	if (!iph)
+		return NF_ACCEPT;
+
+	if (state->pf != 2)
+		return NF_ACCEPT;
+
+	ihl = iph->ihl << 2;
+
+	th = bpf_dynptr_slice(&ptr, ihl, buffer_th, sizeof(buffer_th));
+	if (!th)
+		return NF_ACCEPT;
+
+	return th->dest == bpf_htons(22) ? NF_ACCEPT : NF_DROP;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_netfilter_retcode.c b/tools/testing/selftests/bpf/progs/verifier_netfilter_retcode.c
new file mode 100644
index 000000000000..e1ffa5d32ff0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_netfilter_retcode.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("netfilter")
+__description("bpf_exit with invalid return code. test1")
+__failure __msg("R0 is not a known value")
+__naked void with_invalid_return_code_test1(void)
+{
+	asm volatile ("					\
+	r0 = *(u64*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("netfilter")
+__description("bpf_exit with valid return code. test2")
+__success
+__naked void with_valid_return_code_test2(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("netfilter")
+__description("bpf_exit with valid return code. test3")
+__success
+__naked void with_valid_return_code_test3(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("netfilter")
+__description("bpf_exit with invalid return code. test4")
+__failure __msg("R0 has smin=2 smax=2 should have been in [0, 1]")
+__naked void with_invalid_return_code_test4(void)
+{
+	asm volatile ("					\
+	r0 = 2;						\
+	exit;						\
+"	::: __clobber_all);
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_or_jmp32_k.c b/tools/testing/selftests/bpf/progs/verifier_or_jmp32_k.c
new file mode 100644
index 000000000000..f37713a265ac
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_or_jmp32_k.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("or_jmp32_k: bit ops + branch on unknown value")
+__failure
+__msg("R0 invalid mem access 'scalar'")
+__naked void or_jmp32_k(void)
+{
+	asm volatile ("					\
+	r0 = 0xffffffff;				\
+	r0 /= 1;					\
+	r1 = 0;						\
+	w1 = -1;					\
+	w1 >>= 1;					\
+	w0 &= w1;					\
+	w0 |= 2;					\
+	if w0 != 0x7ffffffd goto l1;			\
+	r0 = 1;						\
+	exit;						\
+l3:							\
+	r0 = 5;						\
+	*(u64*)(r0 - 8) = r0;				\
+	exit;						\
+l2:							\
+	w0 -= 0xe;					\
+	if w0 == 1 goto l3;				\
+	r0 = 4;						\
+	exit;						\
+l1:							\
+	w0 -= 0x7ffffff0;				\
+	if w0 s>= 0xe goto l2;				\
+	r0 = 3;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_precision.c b/tools/testing/selftests/bpf/progs/verifier_precision.c
new file mode 100644
index 000000000000..1fe090cd6744
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_precision.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2023 SUSE LLC */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
+__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0xfffffff8 goto pc+2")
+__msg("mark_precise: frame0: regs=r2 stack= before 1: (87) r2 = -r2")
+__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 8")
+__naked int bpf_neg(void)
+{
+	asm volatile (
+		"r2 = 8;"
+		"r2 = -r2;"
+		"if r2 != -8 goto 1f;"
+		"r1 = r10;"
+		"r1 += r2;"
+	"1:"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
+__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
+__msg("mark_precise: frame0: regs=r2 stack= before 1: (d4) r2 = le16 r2")
+__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
+__naked int bpf_end_to_le(void)
+{
+	asm volatile (
+		"r2 = 0;"
+		"r2 = le16 r2;"
+		"if r2 != 0 goto 1f;"
+		"r1 = r10;"
+		"r1 += r2;"
+	"1:"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
+__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
+__msg("mark_precise: frame0: regs=r2 stack= before 1: (dc) r2 = be16 r2")
+__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
+__naked int bpf_end_to_be(void)
+{
+	asm volatile (
+		"r2 = 0;"
+		"r2 = be16 r2;"
+		"if r2 != 0 goto 1f;"
+		"r1 = r10;"
+		"r1 += r2;"
+	"1:"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
+	defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390)) && \
+	__clang_major__ >= 18
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r1 = r10")
+__msg("mark_precise: frame0: regs=r2 stack= before 2: (55) if r2 != 0x0 goto pc+2")
+__msg("mark_precise: frame0: regs=r2 stack= before 1: (d7) r2 = bswap16 r2")
+__msg("mark_precise: frame0: regs=r2 stack= before 0: (b7) r2 = 0")
+__naked int bpf_end_bswap(void)
+{
+	asm volatile (
+		"r2 = 0;"
+		"r2 = bswap16 r2;"
+		"if r2 != 0 goto 1f;"
+		"r1 = r10;"
+		"r1 += r2;"
+	"1:"
+		"r0 = 0;"
+		"exit;"
+		::: __clobber_all);
+}
+
+#ifdef CAN_USE_LOAD_ACQ_STORE_REL
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r3 = r10")
+__msg("mark_precise: frame0: regs=r2 stack= before 2: (db) r2 = load_acquire((u64 *)(r10 -8))")
+__msg("mark_precise: frame0: regs= stack=-8 before 1: (7b) *(u64 *)(r10 -8) = r1")
+__msg("mark_precise: frame0: regs=r1 stack= before 0: (b7) r1 = 8")
+__naked int bpf_load_acquire(void)
+{
+	asm volatile (
+	"r1 = 8;"
+	"*(u64 *)(r10 - 8) = r1;"
+	".8byte %[load_acquire_insn];" /* r2 = load_acquire((u64 *)(r10 - 8)); */
+	"r3 = r10;"
+	"r3 += r2;" /* mark_precise */
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_insn(load_acquire_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_LOAD_ACQ, BPF_REG_2, BPF_REG_10, -8))
+	: __clobber_all);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("mark_precise: frame0: regs=r1 stack= before 3: (bf) r2 = r10")
+__msg("mark_precise: frame0: regs=r1 stack= before 2: (79) r1 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-8 before 1: (db) store_release((u64 *)(r10 -8), r1)")
+__msg("mark_precise: frame0: regs=r1 stack= before 0: (b7) r1 = 8")
+__naked int bpf_store_release(void)
+{
+	asm volatile (
+	"r1 = 8;"
+	".8byte %[store_release_insn];" /* store_release((u64 *)(r10 - 8), r1); */
+	"r1 = *(u64 *)(r10 - 8);"
+	"r2 = r10;"
+	"r2 += r1;" /* mark_precise */
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -8))
+	: __clobber_all);
+}
+
+#endif /* CAN_USE_LOAD_ACQ_STORE_REL */
+#endif /* v4 instruction */
+
+SEC("?raw_tp")
+__success __log_level(2)
+/*
+ * Without the bug fix there will be no history between "last_idx 3 first_idx 3"
+ * and "parent state regs=" lines. "R0=6" parts are here to help anchor
+ * expected log messages to the one specific mark_chain_precision operation.
+ *
+ * This is quite fragile: if verifier checkpointing heuristic changes, this
+ * might need adjusting.
+ */
+__msg("2: (07) r0 += 1                       ; R0=6")
+__msg("3: (35) if r0 >= 0xa goto pc+1")
+__msg("mark_precise: frame0: last_idx 3 first_idx 3 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 2: (07) r0 += 1")
+__msg("mark_precise: frame0: regs=r0 stack= before 1: (07) r0 += 1")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (05) goto pc-4")
+__msg("mark_precise: frame0: regs=r0 stack= before 3: (35) if r0 >= 0xa goto pc+1")
+__msg("mark_precise: frame0: parent state regs= stack=:  R0=P4")
+__msg("3: R0=6")
+__naked int state_loop_first_last_equal(void)
+{
+	asm volatile (
+		"r0 = 0;"
+	"l0_%=:"
+		"r0 += 1;"
+		"r0 += 1;"
+		/* every few iterations we'll have a checkpoint here with
+		 * first_idx == last_idx, potentially confusing precision
+		 * backtracking logic
+		 */
+		"if r0 >= 10 goto l1_%=;"	/* checkpoint + mark_precise */
+		"goto l0_%=;"
+	"l1_%=:"
+		"exit;"
+		::: __clobber_common
+	);
+}
+
+__used __naked static void __bpf_cond_op_r10(void)
+{
+	asm volatile (
+	"r2 = 2314885393468386424 ll;"
+	"goto +0;"
+	"if r2 <= r10 goto +3;"
+	"if r1 >= -1835016 goto +0;"
+	"if r2 <= 8 goto +0;"
+	"if r3 <= 0 goto +0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("8: (bd) if r2 <= r10 goto pc+3")
+__msg("9: (35) if r1 >= 0xffe3fff8 goto pc+0")
+__msg("10: (b5) if r2 <= 0x8 goto pc+0")
+__msg("mark_precise: frame1: last_idx 10 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame1: regs=r2 stack= before 9: (35) if r1 >= 0xffe3fff8 goto pc+0")
+__msg("mark_precise: frame1: regs=r2 stack= before 8: (bd) if r2 <= r10 goto pc+3")
+__msg("mark_precise: frame1: regs=r2 stack= before 7: (05) goto pc+0")
+__naked void bpf_cond_op_r10(void)
+{
+	asm volatile (
+	"r3 = 0 ll;"
+	"call __bpf_cond_op_r10;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("3: (bf) r3 = r10")
+__msg("4: (bd) if r3 <= r2 goto pc+1")
+__msg("5: (b5) if r2 <= 0x8 goto pc+2")
+__msg("mark_precise: frame0: last_idx 5 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 4: (bd) if r3 <= r2 goto pc+1")
+__msg("mark_precise: frame0: regs=r2 stack= before 3: (bf) r3 = r10")
+__naked void bpf_cond_op_not_r10(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"r2 = 2314885393468386424 ll;"
+	"r3 = r10;"
+	"if r3 <= r2 goto +1;"
+	"if r2 <= 8 goto +2;"
+	"r0 = 2 ll;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm.s/socket_connect")
+__success __log_level(2)
+__msg("0: (b7) r0 = 1                        ; R0=1")
+__msg("1: (84) w0 = -w0                      ; R0=0xffffffff")
+__msg("mark_precise: frame0: last_idx 2 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 1: (84) w0 = -w0")
+__msg("mark_precise: frame0: regs=r0 stack= before 0: (b7) r0 = 1")
+__naked int bpf_neg_2(void)
+{
+	/*
+	 * lsm.s/socket_connect requires a return value within [-4095, 0].
+	 * Returning -1 is allowed
+	 */
+	asm volatile (
+	"r0 = 1;"
+	"w0 = -w0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm.s/socket_connect")
+__failure __msg("At program exit the register R0 has")
+__naked int bpf_neg_3(void)
+{
+	/*
+	 * lsm.s/socket_connect requires a return value within [-4095, 0].
+	 * Returning -10000 is not allowed.
+	 */
+	asm volatile (
+	"r0 = 10000;"
+	"w0 = -w0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm.s/socket_connect")
+__success __log_level(2)
+__msg("0: (b7) r0 = 1                        ; R0=1")
+__msg("1: (87) r0 = -r0                      ; R0=-1")
+__msg("mark_precise: frame0: last_idx 2 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 1: (87) r0 = -r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 0: (b7) r0 = 1")
+__naked int bpf_neg_4(void)
+{
+	/*
+	 * lsm.s/socket_connect requires a return value within [-4095, 0].
+	 * Returning -1 is allowed
+	 */
+	asm volatile (
+	"r0 = 1;"
+	"r0 = -r0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+SEC("lsm.s/socket_connect")
+__failure __msg("At program exit the register R0 has")
+__naked int bpf_neg_5(void)
+{
+	/*
+	 * lsm.s/socket_connect requires a return value within [-4095, 0].
+	 * Returning -10000 is not allowed.
+	 */
+	asm volatile (
+	"r0 = 10000;"
+	"r0 = -r0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_prevent_map_lookup.c b/tools/testing/selftests/bpf/progs/verifier_prevent_map_lookup.c
new file mode 100644
index 000000000000..8d27c780996f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_prevent_map_lookup.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/prevent_map_lookup.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_STACK_TRACE);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} map_stacktrace SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 8);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog2_socket SEC(".maps");
+
+SEC("perf_event")
+__description("prevent map lookup in stack trace")
+__failure __msg("cannot pass map_type 7 into func bpf_map_lookup_elem")
+__naked void map_lookup_in_stack_trace(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_stacktrace] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_stacktrace)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("prevent map lookup in prog array")
+__failure __msg("cannot pass map_type 3 into func bpf_map_lookup_elem")
+__failure_unpriv
+__naked void map_lookup_in_prog_array(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_prog2_socket] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_prog2_socket)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_private_stack.c b/tools/testing/selftests/bpf/progs/verifier_private_stack.c
new file mode 100644
index 000000000000..1ecd34ebde19
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_private_stack.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+/* From include/linux/filter.h */
+#define MAX_BPF_STACK    512
+
+#if defined(__TARGET_ARCH_x86) || defined(__TARGET_ARCH_arm64)
+
+struct elem {
+	struct bpf_timer t;
+	char pad[256];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+SEC("kprobe")
+__description("Private stack, single prog")
+__success
+__arch_x86_64
+__jited("	movabsq	$0x{{.*}}, %r9")
+__jited("	addq	%gs:{{.*}}, %r9")
+__jited("	movl	$0x2a, %edi")
+__jited("	movq	%rdi, -0x100(%r9)")
+__arch_arm64
+__jited("	stp	x25, x27, [sp, {{.*}}]!")
+__jited("	mov	x27, {{.*}}")
+__jited("	movk	x27, {{.*}}, lsl #16")
+__jited("	movk	x27, {{.*}}")
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+__jited("	mov	x0, #0x2a")
+__jited("	str	x0, [x27]")
+__jited("...")
+__jited("	ldp	x25, x27, [sp], {{.*}}")
+__naked void private_stack_single_prog(void)
+{
+	asm volatile ("			\
+	r1 = 42;			\
+	*(u64 *)(r10 - 256) = r1;	\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_all);
+}
+
+SEC("raw_tp")
+__description("No private stack")
+__success
+__arch_x86_64
+__jited("	subq	$0x8, %rsp")
+__arch_arm64
+__jited("	mov	x25, sp")
+__jited("	sub	sp, sp, #0x10")
+__naked void no_private_stack_nested(void)
+{
+	asm volatile ("			\
+	r1 = 42;			\
+	*(u64 *)(r10 - 8) = r1;		\
+	r0 = 0;				\
+	exit;				\
+"	::: __clobber_all);
+}
+
+__used
+__naked static void cumulative_stack_depth_subprog(void)
+{
+	asm volatile ("				\
+	r1 = 41;				\
+	*(u64 *)(r10 - 32) = r1;		\
+	call %[bpf_get_smp_processor_id];	\
+	exit;					\
+"	:
+	: __imm(bpf_get_smp_processor_id)
+	: __clobber_all);
+}
+
+SEC("kprobe")
+__description("Private stack, subtree > MAX_BPF_STACK")
+__success
+__arch_x86_64
+/* private stack fp for the main prog */
+__jited("	movabsq	$0x{{.*}}, %r9")
+__jited("	addq	%gs:{{.*}}, %r9")
+__jited("	movl	$0x2a, %edi")
+__jited("	movq	%rdi, -0x200(%r9)")
+__jited("	pushq	%r9")
+__jited("	callq	0x{{.*}}")
+__jited("	popq	%r9")
+__jited("	xorl	%eax, %eax")
+__arch_arm64
+__jited("	stp	x25, x27, [sp, {{.*}}]!")
+__jited("	mov	x27, {{.*}}")
+__jited("	movk	x27, {{.*}}, lsl #16")
+__jited("	movk	x27, {{.*}}")
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+__jited("	mov	x0, #0x2a")
+__jited("	str	x0, [x27]")
+__jited("	bl	{{.*}}")
+__jited("...")
+__jited("	ldp	x25, x27, [sp], {{.*}}")
+__naked void private_stack_nested_1(void)
+{
+	asm volatile ("				\
+	r1 = 42;				\
+	*(u64 *)(r10 - %[max_bpf_stack]) = r1;	\
+	call cumulative_stack_depth_subprog;	\
+	r0 = 0;					\
+	exit;					\
+"	:
+	: __imm_const(max_bpf_stack, MAX_BPF_STACK)
+	: __clobber_all);
+}
+
+__naked __noinline __used
+static unsigned long loop_callback(void)
+{
+	asm volatile ("				\
+	call %[bpf_get_prandom_u32];		\
+	r1 = 42;				\
+	*(u64 *)(r10 - 512) = r1;		\
+	call cumulative_stack_depth_subprog;	\
+	r0 = 0;					\
+	exit;					\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_common);
+}
+
+SEC("raw_tp")
+__description("Private stack, callback")
+__success
+__arch_x86_64
+/* for func loop_callback */
+__jited("func #1")
+__jited("	endbr64")
+__jited("	nopl	(%rax,%rax)")
+__jited("	nopl	(%rax)")
+__jited("	pushq	%rbp")
+__jited("	movq	%rsp, %rbp")
+__jited("	endbr64")
+__jited("	movabsq	$0x{{.*}}, %r9")
+__jited("	addq	%gs:{{.*}}, %r9")
+__jited("	pushq	%r9")
+__jited("	callq")
+__jited("	popq	%r9")
+__jited("	movl	$0x2a, %edi")
+__jited("	movq	%rdi, -0x200(%r9)")
+__jited("	pushq	%r9")
+__jited("	callq")
+__jited("	popq	%r9")
+__arch_arm64
+__jited("func #1")
+__jited("...")
+__jited("	stp	x25, x27, [sp, {{.*}}]!")
+__jited("	mov	x27, {{.*}}")
+__jited("	movk	x27, {{.*}}, lsl #16")
+__jited("	movk	x27, {{.*}}")
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+__jited("	bl	0x{{.*}}")
+__jited("	add	x7, x0, #0x0")
+__jited("	mov	x0, #0x2a")
+__jited("	str	x0, [x27]")
+__jited("	bl	0x{{.*}}")
+__jited("	add	x7, x0, #0x0")
+__jited("	mov	x7, #0x0")
+__jited("	ldp	x25, x27, [sp], {{.*}}")
+__naked void private_stack_callback(void)
+{
+	asm volatile ("			\
+	r1 = 1;				\
+	r2 = %[loop_callback];		\
+	r3 = 0;				\
+	r4 = 0;				\
+	call %[bpf_loop];		\
+	r0 = 0;				\
+	exit;				\
+"	:
+	: __imm_ptr(loop_callback),
+	  __imm(bpf_loop)
+	: __clobber_common);
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("Private stack, exception in main prog")
+__success __retval(0)
+__arch_x86_64
+__jited("	pushq	%r9")
+__jited("	callq")
+__jited("	popq	%r9")
+__arch_arm64
+__jited("	stp	x29, x30, [sp, #-0x10]!")
+__jited("	mov	x29, sp")
+__jited("	stp	xzr, x26, [sp, #-0x10]!")
+__jited("	mov	x26, sp")
+__jited("	stp	x19, x20, [sp, #-0x10]!")
+__jited("	stp	x21, x22, [sp, #-0x10]!")
+__jited("	stp	x23, x24, [sp, #-0x10]!")
+__jited("	stp	x25, x26, [sp, #-0x10]!")
+__jited("	stp	x27, x28, [sp, #-0x10]!")
+__jited("	mov	x27, {{.*}}")
+__jited("	movk	x27, {{.*}}, lsl #16")
+__jited("	movk	x27, {{.*}}")
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+__jited("	mov	x0, #0x2a")
+__jited("	str	x0, [x27]")
+__jited("	mov	x0, #0x0")
+__jited("	bl	0x{{.*}}")
+__jited("	add	x7, x0, #0x0")
+__jited("	ldp	x27, x28, [sp], #0x10")
+int private_stack_exception_main_prog(void)
+{
+	asm volatile ("			\
+	r1 = 42;			\
+	*(u64 *)(r10 - 512) = r1;	\
+"	::: __clobber_common);
+
+	bpf_throw(0);
+	return 0;
+}
+
+__used static int subprog_exception(void)
+{
+	bpf_throw(0);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("Private stack, exception in subprog")
+__success __retval(0)
+__arch_x86_64
+__jited("	movq	%rdi, -0x200(%r9)")
+__jited("	pushq	%r9")
+__jited("	callq")
+__jited("	popq	%r9")
+__arch_arm64
+__jited("	stp	x27, x28, [sp, #-0x10]!")
+__jited("	mov	x27, {{.*}}")
+__jited("	movk	x27, {{.*}}, lsl #16")
+__jited("	movk	x27, {{.*}}")
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+__jited("	mov	x0, #0x2a")
+__jited("	str	x0, [x27]")
+__jited("	bl	0x{{.*}}")
+__jited("	add	x7, x0, #0x0")
+__jited("	ldp	x27, x28, [sp], #0x10")
+int private_stack_exception_sub_prog(void)
+{
+	asm volatile ("			\
+	r1 = 42;			\
+	*(u64 *)(r10 - 512) = r1;	\
+	call subprog_exception;		\
+"	::: __clobber_common);
+
+	return 0;
+}
+
+int glob;
+__noinline static void subprog2(int *val)
+{
+	glob += val[0] * 2;
+}
+
+__noinline static void subprog1(int *val)
+{
+	int tmp[64] = {};
+
+	tmp[0] = *val;
+	subprog2(tmp);
+}
+
+__noinline static int timer_cb1(void *map, int *key, struct bpf_timer *timer)
+{
+	subprog1(key);
+	return 0;
+}
+
+__noinline static int timer_cb2(void *map, int *key, struct bpf_timer *timer)
+{
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("Private stack, async callback, not nested")
+__success __retval(0)
+__arch_x86_64
+__jited("	movabsq	$0x{{.*}}, %r9")
+__arch_arm64
+__jited("	mrs	x10, TPIDR_EL{{[0-1]}}")
+__jited("	add	x27, x27, x10")
+__jited("	add	x25, x27, {{.*}}")
+int private_stack_async_callback_1(void)
+{
+	struct bpf_timer *arr_timer;
+	int array_key = 0;
+
+	arr_timer = bpf_map_lookup_elem(&array, &array_key);
+	if (!arr_timer)
+		return 0;
+
+	bpf_timer_init(arr_timer, &array, 1);
+	bpf_timer_set_callback(arr_timer, timer_cb2);
+	bpf_timer_start(arr_timer, 0, 0);
+	subprog1(&array_key);
+	return 0;
+}
+
+SEC("fentry/bpf_fentry_test9")
+__description("Private stack, async callback, potential nesting")
+__success __retval(0)
+__arch_x86_64
+__jited("	subq	$0x100, %rsp")
+__arch_arm64
+__jited("	sub	sp, sp, #0x100")
+int private_stack_async_callback_2(void)
+{
+	struct bpf_timer *arr_timer;
+	int array_key = 0;
+
+	arr_timer = bpf_map_lookup_elem(&array, &array_key);
+	if (!arr_timer)
+		return 0;
+
+	bpf_timer_init(arr_timer, &array, 1);
+	bpf_timer_set_callback(arr_timer, timer_cb1);
+	bpf_timer_start(arr_timer, 0, 0);
+	subprog1(&array_key);
+	return 0;
+}
+
+#else
+
+SEC("kprobe")
+__description("private stack is not supported, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_raw_stack.c b/tools/testing/selftests/bpf/progs/verifier_raw_stack.c
new file mode 100644
index 000000000000..c689665e07b9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_raw_stack.c
@@ -0,0 +1,372 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/raw_stack.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("raw_stack: no skb_load_bytes")
+__success
+__failure_unpriv __msg_unpriv("invalid read from stack R6 off=-8 size=8")
+__naked void stack_no_skb_load_bytes(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = r6;					\
+	r4 = 8;						\
+	/* Call to skb_load_bytes() omitted. */		\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, negative len")
+__failure __msg("R4 min value is negative")
+__naked void skb_load_bytes_negative_len(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = r6;					\
+	r4 = -8;					\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, negative len 2")
+__failure __msg("R4 min value is negative")
+__naked void load_bytes_negative_len_2(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = r6;					\
+	r4 = %[__imm_0];				\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__imm_0, ~0)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, zero len")
+__failure __msg("R4 invalid zero-sized read: u64=[0,0]")
+__naked void skb_load_bytes_zero_len(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = r6;					\
+	r4 = 0;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, no init")
+__success __retval(0)
+__naked void skb_load_bytes_no_init(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, init")
+__success __retval(0)
+__naked void stack_skb_load_bytes_init(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	r3 = 0xcafe;					\
+	*(u64*)(r6 + 0) = r3;				\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, spilled regs around bounds")
+__success __retval(0)
+__naked void bytes_spilled_regs_around_bounds(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -16;					\
+	*(u64*)(r6 - 8) = r1;				\
+	*(u64*)(r6 + 8) = r1;				\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 - 8);				\
+	r2 = *(u64*)(r6 + 8);				\
+	r0 = *(u32*)(r0 + %[__sk_buff_mark]);		\
+	r2 = *(u32*)(r2 + %[__sk_buff_priority]);	\
+	r0 += r2;					\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(__sk_buff_priority, offsetof(struct __sk_buff, priority))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, spilled regs corruption")
+__failure __msg("R0 invalid mem access 'scalar'")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void load_bytes_spilled_regs_corruption(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r1;				\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	r0 = *(u32*)(r0 + %[__sk_buff_mark]);		\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, spilled regs corruption 2")
+__failure __msg("R3 invalid mem access 'scalar'")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void bytes_spilled_regs_corruption_2(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -16;					\
+	*(u64*)(r6 - 8) = r1;				\
+	*(u64*)(r6 + 0) = r1;				\
+	*(u64*)(r6 + 8) = r1;				\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 - 8);				\
+	r2 = *(u64*)(r6 + 8);				\
+	r3 = *(u64*)(r6 + 0);				\
+	r0 = *(u32*)(r0 + %[__sk_buff_mark]);		\
+	r2 = *(u32*)(r2 + %[__sk_buff_priority]);	\
+	r0 += r2;					\
+	r3 = *(u32*)(r3 + %[__sk_buff_pkt_type]);	\
+	r0 += r3;					\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(__sk_buff_pkt_type, offsetof(struct __sk_buff, pkt_type)),
+	  __imm_const(__sk_buff_priority, offsetof(struct __sk_buff, priority))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, spilled regs + data")
+__success __retval(0)
+__naked void load_bytes_spilled_regs_data(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -16;					\
+	*(u64*)(r6 - 8) = r1;				\
+	*(u64*)(r6 + 0) = r1;				\
+	*(u64*)(r6 + 8) = r1;				\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 - 8);				\
+	r2 = *(u64*)(r6 + 8);				\
+	r3 = *(u64*)(r6 + 0);				\
+	r0 = *(u32*)(r0 + %[__sk_buff_mark]);		\
+	r2 = *(u32*)(r2 + %[__sk_buff_priority]);	\
+	r0 += r2;					\
+	r0 += r3;					\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(__sk_buff_priority, offsetof(struct __sk_buff, priority))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 1")
+__failure __msg("invalid write to stack R3 off=-513 size=8")
+__naked void load_bytes_invalid_access_1(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -513;					\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 2")
+__failure __msg("invalid write to stack R3 off=-1 size=8")
+__naked void load_bytes_invalid_access_2(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -1;					\
+	r3 = r6;					\
+	r4 = 8;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 3")
+__failure __msg("R4 min value is negative")
+__naked void load_bytes_invalid_access_3(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += 0xffffffff;				\
+	r3 = r6;					\
+	r4 = 0xffffffff;				\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 4")
+__failure
+__msg("R4 unbounded memory access, use 'var &= const' or 'if (var < const)'")
+__naked void load_bytes_invalid_access_4(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -1;					\
+	r3 = r6;					\
+	r4 = 0x7fffffff;				\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 5")
+__failure
+__msg("R4 unbounded memory access, use 'var &= const' or 'if (var < const)'")
+__naked void load_bytes_invalid_access_5(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -512;					\
+	r3 = r6;					\
+	r4 = 0x7fffffff;				\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, invalid access 6")
+__failure __msg("invalid zero-sized read")
+__naked void load_bytes_invalid_access_6(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -512;					\
+	r3 = r6;					\
+	r4 = 0;						\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("raw_stack: skb_load_bytes, large access")
+__success __retval(0)
+__naked void skb_load_bytes_large_access(void)
+{
+	asm volatile ("					\
+	r2 = 4;						\
+	r6 = r10;					\
+	r6 += -512;					\
+	r3 = r6;					\
+	r4 = 512;					\
+	call %[bpf_skb_load_bytes];			\
+	r0 = *(u64*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skb_load_bytes)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_raw_tp_writable.c b/tools/testing/selftests/bpf/progs/verifier_raw_tp_writable.c
new file mode 100644
index 000000000000..14a0172e2141
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_raw_tp_writable.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/raw_tp_writable.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("raw_tracepoint.w")
+__description("raw_tracepoint_writable: reject variable offset")
+__failure
+__msg("R6 invalid variable buffer offset: off=0, var_off=(0x0; 0xffffffff)")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void tracepoint_writable_reject_variable_offset(void)
+{
+	asm volatile ("					\
+	/* r6 is our tp buffer */			\
+	r6 = *(u64*)(r1 + 0);				\
+	r1 = %[map_hash_8b] ll;				\
+	/* move the key (== 0) to r10-8 */		\
+	w0 = 0;						\
+	r2 = r10;					\
+	r2 += -8;					\
+	*(u64*)(r2 + 0) = r0;				\
+	/* lookup in the map */				\
+	call %[bpf_map_lookup_elem];			\
+	/* exit clean if null */			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	/* shift the buffer pointer to a variable location */\
+	r0 = *(u32*)(r0 + 0);				\
+	r6 += r0;					\
+	/* clobber whatever's there */			\
+	r7 = 4242;					\
+	*(u64*)(r6 + 0) = r7;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_ref_tracking.c b/tools/testing/selftests/bpf/progs/verifier_ref_tracking.c
new file mode 100644
index 000000000000..910365201f68
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ref_tracking.c
@@ -0,0 +1,1495 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/ref_tracking.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+#define BPF_SK_LOOKUP(func) \
+	/* struct bpf_sock_tuple tuple = {} */ \
+	"r2 = 0;"			\
+	"*(u32*)(r10 - 8) = r2;"	\
+	"*(u64*)(r10 - 16) = r2;"	\
+	"*(u64*)(r10 - 24) = r2;"	\
+	"*(u64*)(r10 - 32) = r2;"	\
+	"*(u64*)(r10 - 40) = r2;"	\
+	"*(u64*)(r10 - 48) = r2;"	\
+	/* sk = func(ctx, &tuple, sizeof tuple, 0, 0) */ \
+	"r2 = r10;"			\
+	"r2 += -48;"			\
+	"r3 = %[sizeof_bpf_sock_tuple];"\
+	"r4 = 0;"			\
+	"r5 = 0;"			\
+	"call %[" #func "];"
+
+struct bpf_key {} __attribute__((preserve_access_index));
+
+extern void bpf_key_put(struct bpf_key *key) __ksym;
+extern struct bpf_key *bpf_lookup_system_key(__u64 id) __ksym;
+extern struct bpf_key *bpf_lookup_user_key(__s32 serial, __u64 flags) __ksym;
+
+/* BTF FUNC records are not generated for kfuncs referenced
+ * from inline assembly. These records are necessary for
+ * libbpf to link the program. The function below is a hack
+ * to ensure that BTF FUNC records are generated.
+ */
+void __kfunc_btf_root(void)
+{
+	bpf_key_put(0);
+	bpf_lookup_system_key(0);
+	bpf_lookup_user_key(0, 0);
+}
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} map_ringbuf SEC(".maps");
+
+void dummy_prog_42_tc(void);
+void dummy_prog_24_tc(void);
+void dummy_prog_loop1_tc(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 4);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog1_tc SEC(".maps") = {
+	.values = {
+		[0] = (void *)&dummy_prog_42_tc,
+		[1] = (void *)&dummy_prog_loop1_tc,
+		[2] = (void *)&dummy_prog_24_tc,
+	},
+};
+
+SEC("tc")
+__auxiliary
+__naked void dummy_prog_42_tc(void)
+{
+	asm volatile ("r0 = 42; exit;");
+}
+
+SEC("tc")
+__auxiliary
+__naked void dummy_prog_24_tc(void)
+{
+	asm volatile ("r0 = 24; exit;");
+}
+
+SEC("tc")
+__auxiliary
+__naked void dummy_prog_loop1_tc(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog1_tc] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_tc)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak potential reference")
+__failure __msg("Unreleased reference")
+__naked void reference_tracking_leak_potential_reference(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;		/* leak reference */	\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak potential reference to sock_common")
+__failure __msg("Unreleased reference")
+__naked void potential_reference_to_sock_common_1(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_skc_lookup_tcp)
+"	r6 = r0;		/* leak reference */	\
+	exit;						\
+"	:
+	: __imm(bpf_skc_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak potential reference on stack")
+__failure __msg("Unreleased reference")
+__naked void leak_potential_reference_on_stack(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r4 = r10;					\
+	r4 += -8;					\
+	*(u64*)(r4 + 0) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak potential reference on stack 2")
+__failure __msg("Unreleased reference")
+__naked void potential_reference_on_stack_2(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r4 = r10;					\
+	r4 += -8;					\
+	*(u64*)(r4 + 0) = r0;				\
+	r0 = 0;						\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: zero potential reference")
+__failure __msg("Unreleased reference")
+__naked void reference_tracking_zero_potential_reference(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r0 = 0;			/* leak reference */	\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: zero potential reference to sock_common")
+__failure __msg("Unreleased reference")
+__naked void potential_reference_to_sock_common_2(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_skc_lookup_tcp)
+"	r0 = 0;			/* leak reference */	\
+	exit;						\
+"	:
+	: __imm(bpf_skc_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: copy and zero potential references")
+__failure __msg("Unreleased reference")
+__naked void copy_and_zero_potential_references(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r7 = r0;					\
+	r0 = 0;						\
+	r7 = 0;			/* leak reference */	\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: acquire/release user key reference")
+__success
+__naked void acquire_release_user_key_reference(void)
+{
+	asm volatile ("					\
+	r1 = -3;					\
+	r2 = 0;						\
+	call %[bpf_lookup_user_key];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_key_put];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_key_put),
+	  __imm(bpf_lookup_user_key)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: acquire/release system key reference")
+__success
+__naked void acquire_release_system_key_reference(void)
+{
+	asm volatile ("					\
+	r1 = 1;						\
+	call %[bpf_lookup_system_key];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r0;					\
+	call %[bpf_key_put];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_key_put),
+	  __imm(bpf_lookup_system_key)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: release user key reference without check")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+__naked void user_key_reference_without_check(void)
+{
+	asm volatile ("					\
+	r1 = -3;					\
+	r2 = 0;						\
+	call %[bpf_lookup_user_key];			\
+	r1 = r0;					\
+	call %[bpf_key_put];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_key_put),
+	  __imm(bpf_lookup_user_key)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: release system key reference without check")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+__naked void system_key_reference_without_check(void)
+{
+	asm volatile ("					\
+	r1 = 1;						\
+	call %[bpf_lookup_system_key];			\
+	r1 = r0;					\
+	call %[bpf_key_put];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_key_put),
+	  __imm(bpf_lookup_system_key)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: release with NULL key pointer")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+__naked void release_with_null_key_pointer(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	call %[bpf_key_put];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_key_put)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: leak potential reference to user key")
+__failure __msg("Unreleased reference")
+__naked void potential_reference_to_user_key(void)
+{
+	asm volatile ("					\
+	r1 = -3;					\
+	r2 = 0;						\
+	call %[bpf_lookup_user_key];			\
+	exit;						\
+"	:
+	: __imm(bpf_lookup_user_key)
+	: __clobber_all);
+}
+
+SEC("lsm.s/bpf")
+__description("reference tracking: leak potential reference to system key")
+__failure __msg("Unreleased reference")
+__naked void potential_reference_to_system_key(void)
+{
+	asm volatile ("					\
+	r1 = 1;						\
+	call %[bpf_lookup_system_key];			\
+	exit;						\
+"	:
+	: __imm(bpf_lookup_system_key)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference without check")
+__failure __msg("type=sock_or_null expected=sock")
+__naked void tracking_release_reference_without_check(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	/* reference in r0 may be NULL */		\
+	r1 = r0;					\
+	r2 = 0;						\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference to sock_common without check")
+__failure __msg("type=sock_common_or_null expected=sock")
+__naked void to_sock_common_without_check(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_skc_lookup_tcp)
+"	/* reference in r0 may be NULL */		\
+	r1 = r0;					\
+	r2 = 0;						\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_release),
+	  __imm(bpf_skc_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference")
+__success __retval(0)
+__naked void reference_tracking_release_reference(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference to sock_common")
+__success __retval(0)
+__naked void release_reference_to_sock_common(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_skc_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_release),
+	  __imm(bpf_skc_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference 2")
+__success __retval(0)
+__naked void reference_tracking_release_reference_2(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference twice")
+__failure __msg("type=scalar expected=sock")
+__naked void reference_tracking_release_reference_twice(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	r6 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference twice inside branch")
+__failure __msg("type=scalar expected=sock")
+__naked void release_reference_twice_inside_branch(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	r6 = r0;					\
+	if r0 == 0 goto l0_%=;		/* goto end */	\
+	call %[bpf_sk_release];				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: alloc, check, free in one subbranch")
+__failure __msg("Unreleased reference")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void check_free_in_one_subbranch(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 16;					\
+	/* if (offsetof(skb, mark) > data_len) exit; */	\
+	if r0 <= r3 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = *(u32*)(r2 + %[__sk_buff_mark]);		\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r6 == 0 goto l1_%=;		/* mark == 0? */\
+	/* Leak reference in R0 */			\
+	exit;						\
+l1_%=:	if r0 == 0 goto l2_%=;		/* sk NULL? */	\
+	r1 = r0;					\
+	call %[bpf_sk_release];				\
+l2_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: alloc, check, free in both subbranches")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void check_free_in_both_subbranches(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 16;					\
+	/* if (offsetof(skb, mark) > data_len) exit; */	\
+	if r0 <= r3 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = *(u32*)(r2 + %[__sk_buff_mark]);		\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r6 == 0 goto l1_%=;		/* mark == 0? */\
+	if r0 == 0 goto l2_%=;		/* sk NULL? */	\
+	r1 = r0;					\
+	call %[bpf_sk_release];				\
+l2_%=:	exit;						\
+l1_%=:	if r0 == 0 goto l3_%=;		/* sk NULL? */	\
+	r1 = r0;					\
+	call %[bpf_sk_release];				\
+l3_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: free reference in subprog")
+__success __retval(0)
+__naked void call_free_reference_in_subprog(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;	/* unchecked reference */	\
+	call call_free_reference_in_subprog__1;		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void call_free_reference_in_subprog__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+	r2 = r1;					\
+	if r2 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_release)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: free reference in subprog and outside")
+__failure __msg("type=scalar expected=sock")
+__naked void reference_in_subprog_and_outside(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;	/* unchecked reference */	\
+	r6 = r0;					\
+	call reference_in_subprog_and_outside__1;	\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void reference_in_subprog_and_outside__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+	r2 = r1;					\
+	if r2 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_release)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: alloc & leak reference in subprog")
+__failure __msg("Unreleased reference")
+__naked void alloc_leak_reference_in_subprog(void)
+{
+	asm volatile ("					\
+	r4 = r10;					\
+	r4 += -8;					\
+	call alloc_leak_reference_in_subprog__1;	\
+	r1 = r0;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void alloc_leak_reference_in_subprog__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+	r6 = r4;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	/* spill unchecked sk_ptr into stack of caller */\
+	*(u64*)(r6 + 0) = r0;				\
+	r1 = r0;					\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: alloc in subprog, release outside")
+__success __retval(POINTER_VALUE)
+__naked void alloc_in_subprog_release_outside(void)
+{
+	asm volatile ("					\
+	r4 = r10;					\
+	call alloc_in_subprog_release_outside__1;	\
+	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_release)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void alloc_in_subprog_release_outside__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	exit;				/* return sk */	\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: sk_ptr leak into caller stack")
+__failure __msg("Unreleased reference")
+__naked void ptr_leak_into_caller_stack(void)
+{
+	asm volatile ("					\
+	r4 = r10;					\
+	r4 += -8;					\
+	call ptr_leak_into_caller_stack__1;		\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void ptr_leak_into_caller_stack__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+	r5 = r10;					\
+	r5 += -8;					\
+	*(u64*)(r5 + 0) = r4;				\
+	call ptr_leak_into_caller_stack__2;		\
+	/* spill unchecked sk_ptr into stack of caller */\
+	r5 = r10;					\
+	r5 += -8;					\
+	r4 = *(u64*)(r5 + 0);				\
+	*(u64*)(r4 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void ptr_leak_into_caller_stack__2(void)
+{
+	asm volatile ("					\
+	/* subprog 2 */					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking in call: sk_ptr spill into caller stack")
+__success __retval(0)
+__naked void ptr_spill_into_caller_stack(void)
+{
+	asm volatile ("					\
+	r4 = r10;					\
+	r4 += -8;					\
+	call ptr_spill_into_caller_stack__1;		\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void ptr_spill_into_caller_stack__1(void)
+{
+	asm volatile ("					\
+	/* subprog 1 */					\
+	r5 = r10;					\
+	r5 += -8;					\
+	*(u64*)(r5 + 0) = r4;				\
+	call ptr_spill_into_caller_stack__2;		\
+	/* spill unchecked sk_ptr into stack of caller */\
+	r5 = r10;					\
+	r5 += -8;					\
+	r4 = *(u64*)(r5 + 0);				\
+	*(u64*)(r4 + 0) = r0;				\
+	if r0 == 0 goto l0_%=;				\
+	/* now the sk_ptr is verified, free the reference */\
+	r1 = *(u64*)(r4 + 0);				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_release)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void ptr_spill_into_caller_stack__2(void)
+{
+	asm volatile ("					\
+	/* subprog 2 */					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: allow LD_ABS")
+__success __retval(0)
+__naked void reference_tracking_allow_ld_abs(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	r0 = *(u8*)skb[0];				\
+	r0 = *(u16*)skb[0];				\
+	r0 = *(u32*)skb[0];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: forbid LD_ABS while holding reference")
+__failure __msg("BPF_LD_[ABS|IND] would lead to reference leak")
+__naked void ld_abs_while_holding_reference(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r0 = *(u8*)skb[0];				\
+	r0 = *(u16*)skb[0];				\
+	r0 = *(u32*)skb[0];				\
+	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: allow LD_IND")
+__success __retval(1)
+__naked void reference_tracking_allow_ld_ind(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	r7 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r7;					\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple)),
+	  __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: forbid LD_IND while holding reference")
+__failure __msg("BPF_LD_[ABS|IND] would lead to reference leak")
+__naked void ld_ind_while_holding_reference(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r4 = r0;					\
+	r7 = 1;						\
+	.8byte %[ld_ind];				\
+	r0 = r7;					\
+	r1 = r4;					\
+	if r1 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple)),
+	  __imm_insn(ld_ind, BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: check reference or tail call")
+__success __retval(0)
+__naked void check_reference_or_tail_call(void)
+{
+	asm volatile ("					\
+	r7 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	/* if (sk) bpf_sk_release() */			\
+	r1 = r0;					\
+	if r1 != 0 goto l0_%=;				\
+	/* bpf_tail_call() */				\
+	r3 = 3;						\
+	r2 = %[map_prog1_tc] ll;			\
+	r1 = r7;					\
+	call %[bpf_tail_call];				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_tc),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: release reference then tail call")
+__success __retval(0)
+__naked void release_reference_then_tail_call(void)
+{
+	asm volatile ("					\
+	r7 = r1;					\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	/* if (sk) bpf_sk_release() */			\
+	r1 = r0;					\
+	if r1 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	/* bpf_tail_call() */				\
+	r3 = 3;						\
+	r2 = %[map_prog1_tc] ll;			\
+	r1 = r7;					\
+	call %[bpf_tail_call];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_tc),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak possible reference over tail call")
+__failure __msg("tail_call would lead to reference leak")
+__naked void possible_reference_over_tail_call(void)
+{
+	asm volatile ("					\
+	r7 = r1;					\
+	/* Look up socket and store in REG_6 */		\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	/* bpf_tail_call() */				\
+	r6 = r0;					\
+	r3 = 3;						\
+	r2 = %[map_prog1_tc] ll;			\
+	r1 = r7;					\
+	call %[bpf_tail_call];				\
+	r0 = 0;						\
+	/* if (sk) bpf_sk_release() */			\
+	r1 = r6;					\
+	if r1 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_tc),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: leak checked reference over tail call")
+__failure __msg("tail_call would lead to reference leak")
+__naked void checked_reference_over_tail_call(void)
+{
+	asm volatile ("					\
+	r7 = r1;					\
+	/* Look up socket and store in REG_6 */		\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	/* if (!sk) goto end */				\
+	if r0 == 0 goto l0_%=;				\
+	/* bpf_tail_call() */				\
+	r3 = 0;						\
+	r2 = %[map_prog1_tc] ll;			\
+	r1 = r7;					\
+	call %[bpf_tail_call];				\
+	r0 = 0;						\
+	r1 = r6;					\
+l0_%=:	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_tc),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: mangle and release sock_or_null")
+__failure __msg("R1 pointer arithmetic on sock_or_null prohibited")
+__naked void and_release_sock_or_null(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	r1 += 5;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: mangle and release sock")
+__failure __msg("R1 pointer arithmetic on sock prohibited")
+__naked void tracking_mangle_and_release_sock(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 += 5;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: access member")
+__success __retval(0)
+__naked void reference_tracking_access_member(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r2 = *(u32*)(r0 + 4);				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: write to member")
+__failure __msg("cannot write into sock")
+__naked void reference_tracking_write_to_member(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 = r6;					\
+	r2 = 42 ll;					\
+	*(u32*)(r1 + %[bpf_sock_mark]) = r2;		\
+	r1 = r6;					\
+l0_%=:	call %[bpf_sk_release];				\
+	r0 = 0 ll;					\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_mark, offsetof(struct bpf_sock, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: invalid 64-bit access of member")
+__failure __msg("invalid sock access off=0 size=8")
+__naked void _64_bit_access_of_member(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r2 = *(u64*)(r0 + 0);				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: access after release")
+__failure __msg("!read_ok")
+__naked void reference_tracking_access_after_release(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r1 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+	r2 = *(u32*)(r1 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: direct access for lookup")
+__success __retval(0)
+__naked void tracking_direct_access_for_lookup(void)
+{
+	asm volatile ("					\
+	/* Check that the packet is at least 64B long */\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r0 = r2;					\
+	r0 += 64;					\
+	if r0 > r3 goto l0_%=;				\
+	/* sk = sk_lookup_tcp(ctx, skb->data, ...) */	\
+	r3 = %[sizeof_bpf_sock_tuple];			\
+	r4 = 0;						\
+	r5 = 0;						\
+	call %[bpf_sk_lookup_tcp];			\
+	r6 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r2 = *(u32*)(r0 + 4);				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use ptr from bpf_tcp_sock() after release")
+__failure __msg("invalid mem access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void bpf_tcp_sock_after_release(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r7 = r0;					\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u32*)(r7 + %[bpf_tcp_sock_snd_cwnd]);	\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(bpf_tcp_sock_snd_cwnd, offsetof(struct bpf_tcp_sock, snd_cwnd)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use ptr from bpf_sk_fullsock() after release")
+__failure __msg("invalid mem access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void bpf_sk_fullsock_after_release(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r7 = r0;					\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u32*)(r7 + %[bpf_sock_type]);		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use ptr from bpf_sk_fullsock(tp) after release")
+__failure __msg("invalid mem access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void sk_fullsock_tp_after_release(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_fullsock];			\
+	r1 = r6;					\
+	r6 = r0;					\
+	call %[bpf_sk_release];				\
+	if r6 != 0 goto l2_%=;				\
+	exit;						\
+l2_%=:	r0 = *(u32*)(r6 + %[bpf_sock_type]);		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use sk after bpf_sk_release(tp)")
+__failure __msg("invalid mem access")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void after_bpf_sk_release_tp(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u32*)(r6 + %[bpf_sock_type]);		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use ptr from bpf_get_listener_sock() after bpf_sk_release(sk)")
+__success __retval(0)
+__naked void after_bpf_sk_release_sk(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_get_listener_sock];			\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r1 = r6;					\
+	r6 = r0;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u32*)(r6 + %[bpf_sock_src_port]);	\
+	exit;						\
+"	:
+	: __imm(bpf_get_listener_sock),
+	  __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_src_port, offsetof(struct bpf_sock, src_port)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: bpf_sk_release(listen_sk)")
+__failure __msg("R1 must be referenced when passed to release function")
+__naked void bpf_sk_release_listen_sk(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_get_listener_sock];			\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u32*)(r6 + %[bpf_sock_type]);		\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_get_listener_sock),
+	  __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+/* !bpf_sk_fullsock(sk) is checked but !bpf_tcp_sock(sk) is not checked */
+SEC("tc")
+__description("reference tracking: tp->snd_cwnd after bpf_sk_fullsock(sk) and bpf_tcp_sock(sk)")
+__failure __msg("invalid mem access")
+__naked void and_bpf_tcp_sock_sk(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_sk_fullsock];			\
+	r7 = r0;					\
+	r1 = r6;					\
+	call %[bpf_tcp_sock];				\
+	r8 = r0;					\
+	if r7 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r8 + %[bpf_tcp_sock_snd_cwnd]);	\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(bpf_tcp_sock_snd_cwnd, offsetof(struct bpf_tcp_sock, snd_cwnd)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: branch tracking valid pointer null comparison")
+__success __retval(0)
+__naked void tracking_valid_pointer_null_comparison(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	r3 = 1;						\
+	if r6 != 0 goto l0_%=;				\
+	r3 = 0;						\
+l0_%=:	if r6 == 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: branch tracking valid pointer value comparison")
+__failure __msg("Unreleased reference")
+__naked void tracking_valid_pointer_value_comparison(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r6 = r0;					\
+	r3 = 1;						\
+	if r6 == 0 goto l0_%=;				\
+	r3 = 0;						\
+	if r6 == 1234 goto l0_%=;			\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: bpf_sk_release(btf_tcp_sock)")
+__success
+__retval(0)
+__naked void sk_release_btf_tcp_sock(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_skc_to_tcp_sock];			\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_skc_to_tcp_sock),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("reference tracking: use ptr from bpf_skc_to_tcp_sock() after release")
+__failure __msg("invalid mem access")
+__naked void to_tcp_sock_after_release(void)
+{
+	asm volatile (
+	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	call %[bpf_skc_to_tcp_sock];			\
+	if r0 != 0 goto l1_%=;				\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	exit;						\
+l1_%=:	r7 = r0;					\
+	r1 = r6;					\
+	call %[bpf_sk_release];				\
+	r0 = *(u8*)(r7 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm(bpf_skc_to_tcp_sock),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("reference tracking: try to leak released ptr reg")
+__success __failure_unpriv __msg_unpriv("R8 !read_ok")
+__retval(0)
+__naked void to_leak_released_ptr_reg(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u32*)(r10 - 4) = r0;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r9 = r0;					\
+	r0 = 0;						\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r8 = r0;					\
+	r1 = r8;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_discard];			\
+	r0 = 0;						\
+	*(u64*)(r9 + 0) = r8;				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_ringbuf_discard),
+	  __imm(bpf_ringbuf_reserve),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_reg_equal.c b/tools/testing/selftests/bpf/progs/verifier_reg_equal.c
new file mode 100644
index 000000000000..dc1d8c30fb0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_reg_equal.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("check w reg equal if r reg upper32 bits 0")
+__success
+__naked void subreg_equality_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	*(u64 *)(r10 - 8) = r0;				\
+	r2 = *(u32 *)(r10 - 8);				\
+	/* At this point upper 4-bytes of r2 are 0,	\
+	 * thus insn w3 = w2 should propagate reg id,	\
+	 * and w2 < 9 comparison would also propagate	\
+	 * the range for r3.				\
+	 */						\
+	w3 = w2;					\
+	if w2 < 9 goto l0_%=;				\
+	exit;						\
+l0_%=:	if r3 < 9 goto l1_%=;				\
+	/* r1 read is illegal at this point */		\
+	r0 -= r1;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check w reg not equal if r reg upper32 bits not 0")
+__failure __msg("R1 !read_ok")
+__naked void subreg_equality_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_ktime_get_ns];			\
+	r2 = r0;					\
+	/* Upper 4-bytes of r2 may not be 0, thus insn	\
+	 * w3 = w2 should not propagate reg id,	and	\
+	 * w2 < 9 comparison should not propagate	\
+	 * the range for r3 either.			\
+	 */						\
+	w3 = w2;					\
+	if w2 < 9 goto l0_%=;				\
+	exit;						\
+l0_%=:	if r3 < 9 goto l1_%=;				\
+	/* r1 read is illegal at this point */		\
+	r0 -= r1;					\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_regalloc.c b/tools/testing/selftests/bpf/progs/verifier_regalloc.c
new file mode 100644
index 000000000000..ee5ddea87c91
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_regalloc.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/regalloc.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("tracepoint")
+__description("regalloc basic")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_basic(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 20 goto l0_%=;				\
+	if r2 s< 0 goto l0_%=;				\
+	r7 += r0;					\
+	r7 += r2;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc negative")
+__failure __msg("invalid access to map value, value_size=48 off=48 size=1")
+__naked void regalloc_negative(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 24 goto l0_%=;				\
+	if r2 s< 0 goto l0_%=;				\
+	r7 += r0;					\
+	r7 += r2;					\
+	r0 = *(u8*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc src_reg mark")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_src_reg_mark(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 20 goto l0_%=;				\
+	r3 = 0;						\
+	if r3 s>= r2 goto l0_%=;			\
+	r7 += r0;					\
+	r7 += r2;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc src_reg negative")
+__failure __msg("invalid access to map value, value_size=48 off=44 size=8")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_src_reg_negative(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 22 goto l0_%=;				\
+	r3 = 0;						\
+	if r3 s>= r2 goto l0_%=;			\
+	r7 += r0;					\
+	r7 += r2;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc and spill")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_and_spill(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 20 goto l0_%=;				\
+	/* r0 has upper bound that should propagate into r2 */\
+	*(u64*)(r10 - 8) = r2;		/* spill r2 */	\
+	r0 = 0;						\
+	r2 = 0;				/* clear r0 and r2 */\
+	r3 = *(u64*)(r10 - 8);		/* fill r3 */	\
+	if r0 s>= r3 goto l0_%=;			\
+	/* r3 has lower and upper bounds */		\
+	r7 += r3;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc and spill negative")
+__failure __msg("invalid access to map value, value_size=48 off=48 size=8")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_and_spill_negative(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r0 s> 48 goto l0_%=;				\
+	/* r0 has upper bound that should propagate into r2 */\
+	*(u64*)(r10 - 8) = r2;		/* spill r2 */	\
+	r0 = 0;						\
+	r2 = 0;				/* clear r0 and r2 */\
+	r3 = *(u64*)(r10 - 8);		/* fill r3 */\
+	if r0 s>= r3 goto l0_%=;			\
+	/* r3 has lower and upper bounds */		\
+	r7 += r3;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc three regs")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_three_regs(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	r4 = r2;					\
+	if r0 s> 12 goto l0_%=;				\
+	if r2 s< 0 goto l0_%=;				\
+	r7 += r0;					\
+	r7 += r2;					\
+	r7 += r4;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc after call")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_after_call(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r8 = r0;					\
+	r9 = r0;					\
+	call regalloc_after_call__1;			\
+	if r8 s> 20 goto l0_%=;				\
+	if r9 s< 0 goto l0_%=;				\
+	r7 += r8;					\
+	r7 += r9;					\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void regalloc_after_call__1(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc in callee")
+__success __flag(BPF_F_ANY_ALIGNMENT)
+__naked void regalloc_in_callee(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r7 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r2 = r0;					\
+	r3 = r7;					\
+	call regalloc_in_callee__1;			\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void regalloc_in_callee__1(void)
+{
+	asm volatile ("					\
+	if r1 s> 20 goto l0_%=;				\
+	if r2 s< 0 goto l0_%=;				\
+	r3 += r1;					\
+	r3 += r2;					\
+	r0 = *(u64*)(r3 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("regalloc, spill, JEQ")
+__success
+__naked void regalloc_spill_jeq(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	*(u64*)(r10 - 8) = r0;		/* spill r0 */	\
+	if r0 == 0 goto l0_%=;				\
+l0_%=:	/* The verifier will walk the rest twice with r0 == 0 and r0 == map_value */\
+	call %[bpf_get_prandom_u32];			\
+	r2 = r0;					\
+	if r2 == 20 goto l1_%=;				\
+l1_%=:	/* The verifier will walk the rest two more times with r0 == 20 and r0 == unknown */\
+	r3 = *(u64*)(r10 - 8);		/* fill r3 with map_value */\
+	if r3 == 0 goto l2_%=;		/* skip ldx if map_value == NULL */\
+	/* Buggy verifier will think that r3 == 20 here */\
+	r0 = *(u64*)(r3 + 0);		/* read from map_value */\
+l2_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_ringbuf.c b/tools/testing/selftests/bpf/progs/verifier_ringbuf.c
new file mode 100644
index 000000000000..ae1d521f326c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_ringbuf.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/ringbuf.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} map_ringbuf SEC(".maps");
+
+SEC("socket")
+__description("ringbuf: invalid reservation offset 1")
+__failure __msg("R1 must have zero offset when passed to release func")
+__failure_unpriv
+__naked void ringbuf_invalid_reservation_offset_1(void)
+{
+	asm volatile ("					\
+	/* reserve 8 byte ringbuf memory */		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	/* store a pointer to the reserved memory in R6 */\
+	r6 = r0;					\
+	/* check whether the reservation was successful */\
+	if r0 == 0 goto l0_%=;				\
+	/* spill R6(mem) into the stack */		\
+	*(u64*)(r10 - 8) = r6;				\
+	/* fill it back in R7 */			\
+	r7 = *(u64*)(r10 - 8);				\
+	/* should be able to access *(R7) = 0 */	\
+	r1 = 0;						\
+	*(u64*)(r7 + 0) = r1;				\
+	/* submit the reserved ringbuf memory */	\
+	r1 = r7;					\
+	/* add invalid offset to reserved ringbuf memory */\
+	r1 += 0xcafe;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_submit];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ringbuf_reserve),
+	  __imm(bpf_ringbuf_submit),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ringbuf: invalid reservation offset 2")
+__failure __msg("R7 min value is outside of the allowed memory range")
+__failure_unpriv
+__naked void ringbuf_invalid_reservation_offset_2(void)
+{
+	asm volatile ("					\
+	/* reserve 8 byte ringbuf memory */		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	/* store a pointer to the reserved memory in R6 */\
+	r6 = r0;					\
+	/* check whether the reservation was successful */\
+	if r0 == 0 goto l0_%=;				\
+	/* spill R6(mem) into the stack */		\
+	*(u64*)(r10 - 8) = r6;				\
+	/* fill it back in R7 */			\
+	r7 = *(u64*)(r10 - 8);				\
+	/* add invalid offset to reserved ringbuf memory */\
+	r7 += 0xcafe;					\
+	/* should be able to access *(R7) = 0 */	\
+	r1 = 0;						\
+	*(u64*)(r7 + 0) = r1;				\
+	/* submit the reserved ringbuf memory */	\
+	r1 = r7;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_submit];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ringbuf_reserve),
+	  __imm(bpf_ringbuf_submit),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("ringbuf: check passing rb mem to helpers")
+__success __retval(0)
+__naked void passing_rb_mem_to_helpers(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	/* reserve 8 byte ringbuf memory */		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	r7 = r0;					\
+	/* check whether the reservation was successful */\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	/* pass allocated ring buffer memory to fib lookup */\
+	r1 = r6;					\
+	r2 = r0;					\
+	r3 = 8;						\
+	r4 = 0;						\
+	call %[bpf_fib_lookup];				\
+	/* submit the ringbuf memory */			\
+	r1 = r7;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_submit];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_fib_lookup),
+	  __imm(bpf_ringbuf_reserve),
+	  __imm(bpf_ringbuf_submit),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_runtime_jit.c b/tools/testing/selftests/bpf/progs/verifier_runtime_jit.c
new file mode 100644
index 000000000000..27ebfc1fd9ee
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_runtime_jit.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/runtime_jit.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+void dummy_prog_42_socket(void);
+void dummy_prog_24_socket(void);
+void dummy_prog_loop1_socket(void);
+void dummy_prog_loop2_socket(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 4);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog1_socket SEC(".maps") = {
+	.values = {
+		[0] = (void *)&dummy_prog_42_socket,
+		[1] = (void *)&dummy_prog_loop1_socket,
+		[2] = (void *)&dummy_prog_24_socket,
+	},
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 8);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog2_socket SEC(".maps") = {
+	.values = {
+		[1] = (void *)&dummy_prog_loop2_socket,
+		[2] = (void *)&dummy_prog_24_socket,
+		[7] = (void *)&dummy_prog_42_socket,
+	},
+};
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_42_socket(void)
+{
+	asm volatile ("r0 = 42; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_24_socket(void)
+{
+	asm volatile ("r0 = 24; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_loop1_socket(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog1_socket] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_loop2_socket(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog2_socket] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog2_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, prog once")
+__success __success_unpriv __retval(42)
+__naked void call_within_bounds_prog_once(void)
+{
+	asm volatile ("					\
+	r3 = 0;						\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, prog loop")
+__success __success_unpriv __retval(41)
+__naked void call_within_bounds_prog_loop(void)
+{
+	asm volatile ("					\
+	r3 = 1;						\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, no prog")
+__success __success_unpriv __retval(1)
+__naked void call_within_bounds_no_prog(void)
+{
+	asm volatile ("					\
+	r3 = 3;						\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, key 2")
+__success __success_unpriv __retval(24)
+__naked void call_within_bounds_key_2(void)
+{
+	asm volatile ("					\
+	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, key 2 / key 2, first branch")
+__success __success_unpriv __retval(24)
+__naked void _2_key_2_first_branch(void)
+{
+	asm volatile ("					\
+	r0 = 13;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, key 2 / key 2, second branch")
+__success __success_unpriv __retval(24)
+__naked void _2_key_2_second_branch(void)
+{
+	asm volatile ("					\
+	r0 = 14;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, key 0 / key 2, first branch")
+__success __success_unpriv __retval(24)
+__naked void _0_key_2_first_branch(void)
+{
+	asm volatile ("					\
+	r0 = 13;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 0;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, key 0 / key 2, second branch")
+__success __success_unpriv __retval(42)
+__naked void _0_key_2_second_branch(void)
+{
+	asm volatile ("					\
+	r0 = 14;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 0;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 2;						\
+	r2 = %[map_prog1_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, different maps, first branch")
+__success __failure_unpriv __msg_unpriv("tail_call abusing map_ptr")
+__retval(1)
+__naked void bounds_different_maps_first_branch(void)
+{
+	asm volatile ("					\
+	r0 = 13;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 0;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 0;						\
+	r2 = %[map_prog2_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_addr(map_prog2_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call within bounds, different maps, second branch")
+__success __failure_unpriv __msg_unpriv("tail_call abusing map_ptr")
+__retval(42)
+__naked void bounds_different_maps_second_branch(void)
+{
+	asm volatile ("					\
+	r0 = 14;					\
+	*(u8*)(r1 + %[__sk_buff_cb_0]) = r0;		\
+	r0 = *(u8*)(r1 + %[__sk_buff_cb_0]);		\
+	if r0 == 13 goto l0_%=;				\
+	r3 = 0;						\
+	r2 = %[map_prog1_socket] ll;			\
+	goto l1_%=;					\
+l0_%=:	r3 = 0;						\
+	r2 = %[map_prog2_socket] ll;			\
+l1_%=:	call %[bpf_tail_call];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket),
+	  __imm_addr(map_prog2_socket),
+	  __imm_const(__sk_buff_cb_0, offsetof(struct __sk_buff, cb[0]))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: tail_call out of bounds")
+__success __success_unpriv __retval(2)
+__naked void tail_call_out_of_bounds(void)
+{
+	asm volatile ("					\
+	r3 = 256;					\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 2;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: pass negative index to tail_call")
+__success __success_unpriv __retval(2)
+__naked void negative_index_to_tail_call(void)
+{
+	asm volatile ("					\
+	r3 = -1;					\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 2;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("runtime/jit: pass > 32bit index to tail_call")
+__success __success_unpriv __retval(42)
+/* Verifier rewrite for unpriv skips tail call here. */
+__retval_unpriv(2)
+__naked void _32bit_index_to_tail_call(void)
+{
+	asm volatile ("					\
+	r3 = 0x100000000 ll;				\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 2;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_scalar_ids.c b/tools/testing/selftests/bpf/progs/verifier_scalar_ids.c
new file mode 100644
index 000000000000..c0ce690ddb68
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_scalar_ids.c
@@ -0,0 +1,830 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+/* Check that precision marks propagate through scalar IDs.
+ * Registers r{0,1,2} have the same scalar ID.
+ * Range information is propagated for scalars sharing same ID.
+ * Check that precision mark for r0 causes precision marks for r{1,2}
+ * when range information is propagated for 'if <reg> <op> <const>' insn.
+ */
+SEC("socket")
+__success __log_level(2)
+/* first 'if' branch */
+__msg("6: (0f) r3 += r0")
+__msg("frame0: regs=r0 stack= before 4: (25) if r1 > 0x7 goto pc+0")
+__msg("frame0: parent state regs=r0,r1,r2 stack=:")
+__msg("frame0: regs=r0,r1,r2 stack= before 3: (bf) r2 = r0")
+/* second 'if' branch */
+__msg("from 4 to 5: ")
+__msg("6: (0f) r3 += r0")
+__msg("frame0: regs=r0 stack= before 5: (bf) r3 = r10")
+__msg("frame0: regs=r0 stack= before 4: (25) if r1 > 0x7 goto pc+0")
+/* parent state already has r{0,1,2} as precise */
+__msg("frame0: parent state regs= stack=:")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void linked_regs_bpf_k(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == r2.id */
+	"r1 = r0;"
+	"r2 = r0;"
+	"if r1 > 7 goto +0;"
+	/* force r0 to be precise, this eventually marks r1 and r2 as
+	 * precise as well because of shared IDs
+	 */
+	"r3 = r10;"
+	"r3 += r0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Registers r{0,1,2} share same ID when 'if r1 > ...' insn is processed,
+ * check that verifier marks r{1,2} as precise while backtracking
+ * 'if r1 > ...' with r0 already marked.
+ */
+SEC("socket")
+__success __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__msg("frame0: regs=r0 stack= before 5: (2d) if r1 > r3 goto pc+0")
+__msg("frame0: parent state regs=r0,r1,r2,r3 stack=:")
+__msg("frame0: regs=r0,r1,r2,r3 stack= before 4: (b7) r3 = 7")
+__naked void linked_regs_bpf_x_src(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == r2.id */
+	"r1 = r0;"
+	"r2 = r0;"
+	"r3 = 7;"
+	"if r1 > r3 goto +0;"
+	/* force r0 to be precise, this eventually marks r1 and r2 as
+	 * precise as well because of shared IDs
+	 */
+	"r4 = r10;"
+	"r4 += r0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Registers r{0,1,2} share same ID when 'if r1 > r3' insn is processed,
+ * check that verifier marks r{0,1,2} as precise while backtracking
+ * 'if r1 > r3' with r3 already marked.
+ */
+SEC("socket")
+__success __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__msg("frame0: regs=r3 stack= before 5: (2d) if r1 > r3 goto pc+0")
+__msg("frame0: parent state regs=r0,r1,r2,r3 stack=:")
+__msg("frame0: regs=r0,r1,r2,r3 stack= before 4: (b7) r3 = 7")
+__naked void linked_regs_bpf_x_dst(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == r2.id */
+	"r1 = r0;"
+	"r2 = r0;"
+	"r3 = 7;"
+	"if r1 > r3 goto +0;"
+	/* force r0 to be precise, this eventually marks r1 and r2 as
+	 * precise as well because of shared IDs
+	 */
+	"r4 = r10;"
+	"r4 += r3;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Same as linked_regs_bpf_k, but break one of the
+ * links, note that r1 is absent from regs=... in __msg below.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("7: (0f) r3 += r0")
+__msg("frame0: regs=r0 stack= before 6: (bf) r3 = r10")
+__msg("frame0: parent state regs=r0 stack=:")
+__msg("frame0: regs=r0 stack= before 5: (25) if r0 > 0x7 goto pc+0")
+__msg("frame0: parent state regs=r0,r2 stack=:")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void linked_regs_broken_link(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == r2.id */
+	"r1 = r0;"
+	"r2 = r0;"
+	/* break link for r1, this is the only line that differs
+	 * compared to the previous test
+	 */
+	"r1 = 0;"
+	"if r0 > 7 goto +0;"
+	/* force r0 to be precise,
+	 * this eventually marks r2 as precise because of shared IDs
+	 */
+	"r3 = r10;"
+	"r3 += r0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Check that precision marks propagate through scalar IDs.
+ * Use the same scalar ID in multiple stack frames, check that
+ * precision information is propagated up the call stack.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("12: (0f) r2 += r1")
+/* Current state */
+__msg("frame2: last_idx 12 first_idx 11 subseq_idx -1 ")
+__msg("frame2: regs=r1 stack= before 11: (bf) r2 = r10")
+__msg("frame2: parent state regs=r1 stack=")
+__msg("frame1: parent state regs= stack=")
+__msg("frame0: parent state regs= stack=")
+/* Parent state */
+__msg("frame2: last_idx 10 first_idx 10 subseq_idx 11 ")
+__msg("frame2: regs=r1 stack= before 10: (25) if r1 > 0x7 goto pc+0")
+__msg("frame2: parent state regs=r1 stack=")
+/* frame1.r{6,7} are marked because mark_precise_scalar_ids()
+ * looks for all registers with frame2.r1.id in the current state
+ */
+__msg("frame1: parent state regs=r6,r7 stack=")
+__msg("frame0: parent state regs=r6 stack=")
+/* Parent state */
+__msg("frame2: last_idx 8 first_idx 8 subseq_idx 10")
+__msg("frame2: regs=r1 stack= before 8: (85) call pc+1")
+/* frame1.r1 is marked because of backtracking of call instruction */
+__msg("frame1: parent state regs=r1,r6,r7 stack=")
+__msg("frame0: parent state regs=r6 stack=")
+/* Parent state */
+__msg("frame1: last_idx 7 first_idx 6 subseq_idx 8")
+__msg("frame1: regs=r1,r6,r7 stack= before 7: (bf) r7 = r1")
+__msg("frame1: regs=r1,r6 stack= before 6: (bf) r6 = r1")
+__msg("frame1: parent state regs=r1 stack=")
+__msg("frame0: parent state regs=r6 stack=")
+/* Parent state */
+__msg("frame1: last_idx 4 first_idx 4 subseq_idx 6")
+__msg("frame1: regs=r1 stack= before 4: (85) call pc+1")
+__msg("frame0: parent state regs=r1,r6 stack=")
+/* Parent state */
+__msg("frame0: last_idx 3 first_idx 1 subseq_idx 4")
+__msg("frame0: regs=r1,r6 stack= before 3: (bf) r6 = r0")
+__msg("frame0: regs=r0,r1 stack= before 2: (bf) r1 = r0")
+__msg("frame0: regs=r0 stack= before 1: (57) r0 &= 255")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void precision_many_frames(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == r6.id */
+	"r1 = r0;"
+	"r6 = r0;"
+	"call precision_many_frames__foo;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+static __naked __noinline __used
+void precision_many_frames__foo(void)
+{
+	asm volatile (
+	/* conflate one of the register numbers (r6) with outer frame,
+	 * to verify that those are tracked independently
+	 */
+	"r6 = r1;"
+	"r7 = r1;"
+	"call precision_many_frames__bar;"
+	"exit"
+	::: __clobber_all);
+}
+
+static __naked __noinline __used
+void precision_many_frames__bar(void)
+{
+	asm volatile (
+	"if r1 > 7 goto +0;"
+	/* force r1 to be precise, this eventually marks:
+	 * - bar frame r1
+	 * - foo frame r{1,6,7}
+	 * - main frame r{1,6}
+	 */
+	"r2 = r10;"
+	"r2 += r1;"
+	"r0 = 0;"
+	"exit;"
+	::: __clobber_all);
+}
+
+/* Check that scalars with the same IDs are marked precise on stack as
+ * well as in registers.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("11: (0f) r2 += r1")
+/* foo frame */
+__msg("frame1: regs=r1 stack= before 10: (bf) r2 = r10")
+__msg("frame1: regs=r1 stack= before 9: (25) if r1 > 0x7 goto pc+0")
+__msg("frame1: regs=r1 stack=-8,-16 before 8: (7b) *(u64 *)(r10 -16) = r1")
+__msg("frame1: regs=r1 stack=-8 before 7: (7b) *(u64 *)(r10 -8) = r1")
+__msg("frame1: regs=r1 stack= before 4: (85) call pc+2")
+/* main frame */
+__msg("frame0: regs=r1 stack=-8 before 3: (7b) *(u64 *)(r10 -8) = r1")
+__msg("frame0: regs=r1 stack= before 2: (bf) r1 = r0")
+__msg("frame0: regs=r0 stack= before 1: (57) r0 &= 255")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void precision_stack(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id == fp[-8].id */
+	"r1 = r0;"
+	"*(u64*)(r10 - 8) = r1;"
+	"call precision_stack__foo;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+static __naked __noinline __used
+void precision_stack__foo(void)
+{
+	asm volatile (
+	/* conflate one of the register numbers (r6) with outer frame,
+	 * to verify that those are tracked independently
+	 */
+	"*(u64*)(r10 - 8) = r1;"
+	"*(u64*)(r10 - 16) = r1;"
+	"if r1 > 7 goto +0;"
+	/* force r1 to be precise, this eventually marks:
+	 * - foo frame r1,fp{-8,-16}
+	 * - main frame r1,fp{-8}
+	 */
+	"r2 = r10;"
+	"r2 += r1;"
+	"exit"
+	::: __clobber_all);
+}
+
+/* Use two separate scalar IDs to check that these are propagated
+ * independently.
+ */
+SEC("socket")
+__success __log_level(2)
+/* r{6,7} */
+__msg("12: (0f) r3 += r7")
+__msg("frame0: regs=r7 stack= before 11: (bf) r3 = r10")
+__msg("frame0: regs=r7 stack= before 9: (25) if r7 > 0x7 goto pc+0")
+/* ... skip some insns ... */
+__msg("frame0: regs=r6,r7 stack= before 3: (bf) r7 = r0")
+__msg("frame0: regs=r0,r6 stack= before 2: (bf) r6 = r0")
+/* r{8,9} */
+__msg("13: (0f) r3 += r9")
+__msg("frame0: regs=r9 stack= before 12: (0f) r3 += r7")
+/* ... skip some insns ... */
+__msg("frame0: regs=r9 stack= before 10: (25) if r9 > 0x7 goto pc+0")
+__msg("frame0: regs=r8,r9 stack= before 7: (bf) r9 = r0")
+__msg("frame0: regs=r0,r8 stack= before 6: (bf) r8 = r0")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void precision_two_ids(void)
+{
+	asm volatile (
+	/* r6 = random number up to 0xff
+	 * r6.id == r7.id
+	 */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	"r6 = r0;"
+	"r7 = r0;"
+	/* same, but for r{8,9} */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	"r8 = r0;"
+	"r9 = r0;"
+	/* clear r0 id */
+	"r0 = 0;"
+	/* propagate equal scalars precision */
+	"if r7 > 7 goto +0;"
+	"if r9 > 7 goto +0;"
+	"r3 = r10;"
+	/* force r7 to be precise, this also marks r6 */
+	"r3 += r7;"
+	/* force r9 to be precise, this also marks r8 */
+	"r3 += r9;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__success __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+/* check that r0 and r6 have different IDs after 'if',
+ * collect_linked_regs() can't tie more than 6 registers for a single insn.
+ */
+__msg("8: (25) if r0 > 0x7 goto pc+0         ; R0=scalar(id=1")
+__msg("9: (bf) r6 = r6                       ; R6=scalar(id=2")
+/* check that r{0-5} are marked precise after 'if' */
+__msg("frame0: regs=r0 stack= before 8: (25) if r0 > 0x7 goto pc+0")
+__msg("frame0: parent state regs=r0,r1,r2,r3,r4,r5 stack=:")
+__naked void linked_regs_too_many_regs(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r{0-6} IDs */
+	"r1 = r0;"
+	"r2 = r0;"
+	"r3 = r0;"
+	"r4 = r0;"
+	"r5 = r0;"
+	"r6 = r0;"
+	/* propagate range for r{0-6} */
+	"if r0 > 7 goto +0;"
+	/* make r6 appear in the log */
+	"r6 = r6;"
+	/* force r0 to be precise,
+	 * this would cause r{0-4} to be precise because of shared IDs
+	 */
+	"r7 = r10;"
+	"r7 += r0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__failure __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__msg("regs=r7 stack= before 5: (3d) if r8 >= r0")
+__msg("parent state regs=r0,r7,r8")
+__msg("regs=r0,r7,r8 stack= before 4: (25) if r0 > 0x1")
+__msg("div by zero")
+__naked void linked_regs_broken_link_2(void)
+{
+	asm volatile (
+	"call %[bpf_get_prandom_u32];"
+	"r7 = r0;"
+	"r8 = r0;"
+	"call %[bpf_get_prandom_u32];"
+	"if r0 > 1 goto +0;"
+	/* r7.id == r8.id,
+	 * thus r7 precision implies r8 precision,
+	 * which implies r0 precision because of the conditional below.
+	 */
+	"if r8 >= r0 goto 1f;"
+	/* break id relation between r7 and r8 */
+	"r8 += r8;"
+	/* make r7 precise */
+	"if r7 == 0 goto 1f;"
+	"r0 /= 0;"
+"1:"
+	"r0 = 42;"
+	"exit;"
+	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/* Check that mark_chain_precision() for one of the conditional jump
+ * operands does not trigger equal scalars precision propagation.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("3: (25) if r1 > 0x100 goto pc+0")
+__msg("frame0: regs=r1 stack= before 2: (bf) r1 = r0")
+__naked void cjmp_no_linked_regs_trigger(void)
+{
+	asm volatile (
+	/* r0 = random number up to 0xff */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* tie r0.id == r1.id */
+	"r1 = r0;"
+	/* the jump below would be predicted, thus r1 would be marked precise,
+	 * this should not imply precision mark for r0
+	 */
+	"if r1 > 256 goto +0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Verify that check_ids() is used by regsafe() for scalars.
+ *
+ * r9 = ... some pointer with range X ...
+ * r6 = ... unbound scalar ID=a ...
+ * r7 = ... unbound scalar ID=b ...
+ * if (r6 > r7) goto +1
+ * r7 = r6
+ * if (r7 > X) goto exit
+ * r9 += r6
+ * ... access memory using r9 ...
+ *
+ * The memory access is safe only if r7 is bounded,
+ * which is true for one branch and not true for another.
+ */
+SEC("socket")
+__failure __msg("register with unbounded min value")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void check_ids_in_regsafe(void)
+{
+	asm volatile (
+	/* Bump allocated stack */
+	"r1 = 0;"
+	"*(u64*)(r10 - 8) = r1;"
+	/* r9 = pointer to stack */
+	"r9 = r10;"
+	"r9 += -8;"
+	/* r7 = ktime_get_ns() */
+	"call %[bpf_ktime_get_ns];"
+	"r7 = r0;"
+	/* r6 = ktime_get_ns() */
+	"call %[bpf_ktime_get_ns];"
+	"r6 = r0;"
+	/* if r6 > r7 is an unpredictable jump */
+	"if r6 > r7 goto l1_%=;"
+	"r7 = r6;"
+"l1_%=:"
+	/* if r7 > 4 ...; transfers range to r6 on one execution path
+	 * but does not transfer on another
+	 */
+	"if r7 > 4 goto l2_%=;"
+	/* Access memory at r9[r6], r6 is not always bounded */
+	"r9 += r6;"
+	"r0 = *(u8*)(r9 + 0);"
+"l2_%=:"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Similar to check_ids_in_regsafe.
+ * The l0 could be reached in two states:
+ *
+ *   (1) r6{.id=A}, r7{.id=A}, r8{.id=B}
+ *   (2) r6{.id=B}, r7{.id=A}, r8{.id=B}
+ *
+ * Where (2) is not safe, as "r7 > 4" check won't propagate range for it.
+ * This example would be considered safe without changes to
+ * mark_chain_precision() to track scalar values with equal IDs.
+ */
+SEC("socket")
+__failure __msg("register with unbounded min value")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void check_ids_in_regsafe_2(void)
+{
+	asm volatile (
+	/* Bump allocated stack */
+	"r1 = 0;"
+	"*(u64*)(r10 - 8) = r1;"
+	/* r9 = pointer to stack */
+	"r9 = r10;"
+	"r9 += -8;"
+	/* r8 = ktime_get_ns() */
+	"call %[bpf_ktime_get_ns];"
+	"r8 = r0;"
+	/* r7 = ktime_get_ns() */
+	"call %[bpf_ktime_get_ns];"
+	"r7 = r0;"
+	/* r6 = ktime_get_ns() */
+	"call %[bpf_ktime_get_ns];"
+	"r6 = r0;"
+	/* scratch .id from r0 */
+	"r0 = 0;"
+	/* if r6 > r7 is an unpredictable jump */
+	"if r6 > r7 goto l1_%=;"
+	/* tie r6 and r7 .id */
+	"r6 = r7;"
+"l0_%=:"
+	/* if r7 > 4 exit(0) */
+	"if r7 > 4 goto l2_%=;"
+	/* Access memory at r9[r6] */
+	"r9 += r6;"
+	"r0 = *(u8*)(r9 + 0);"
+"l2_%=:"
+	"r0 = 0;"
+	"exit;"
+"l1_%=:"
+	/* tie r6 and r8 .id */
+	"r6 = r8;"
+	"goto l0_%=;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Check that scalar IDs *are not* generated on register to register
+ * assignments if source register is a constant.
+ *
+ * If such IDs *are* generated the 'l1' below would be reached in
+ * two states:
+ *
+ *   (1) r1{.id=A}, r2{.id=A}
+ *   (2) r1{.id=C}, r2{.id=C}
+ *
+ * Thus forcing 'if r1 == r2' verification twice.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("11: (1d) if r3 == r4 goto pc+0")
+__msg("frame 0: propagating r3,r4")
+__msg("11: safe")
+__msg("processed 15 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void no_scalar_id_for_const(void)
+{
+	asm volatile (
+	"call %[bpf_ktime_get_ns];"
+	/* unpredictable jump */
+	"if r0 > 7 goto l0_%=;"
+	/* possibly generate same scalar ids for r3 and r4 */
+	"r1 = 0;"
+	"r1 = r1;"
+	"r3 = r1;"
+	"r4 = r1;"
+	"goto l1_%=;"
+"l0_%=:"
+	/* possibly generate different scalar ids for r3 and r4 */
+	"r1 = 0;"
+	"r2 = 0;"
+	"r3 = r1;"
+	"r4 = r2;"
+"l1_%=:"
+	/* predictable jump, marks r3 and r4 precise */
+	"if r3 == r4 goto +0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Same as no_scalar_id_for_const() but for 32-bit values */
+SEC("socket")
+__success __log_level(2)
+__msg("11: (1e) if w3 == w4 goto pc+0")
+__msg("frame 0: propagating r3,r4")
+__msg("11: safe")
+__msg("processed 15 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void no_scalar_id_for_const32(void)
+{
+	asm volatile (
+	"call %[bpf_ktime_get_ns];"
+	/* unpredictable jump */
+	"if r0 > 7 goto l0_%=;"
+	/* possibly generate same scalar ids for r3 and r4 */
+	"w1 = 0;"
+	"w1 = w1;"
+	"w3 = w1;"
+	"w4 = w1;"
+	"goto l1_%=;"
+"l0_%=:"
+	/* possibly generate different scalar ids for r3 and r4 */
+	"w1 = 0;"
+	"w2 = 0;"
+	"w3 = w1;"
+	"w4 = w2;"
+"l1_%=:"
+	/* predictable jump, marks r1 and r2 precise */
+	"if w3 == w4 goto +0;"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Check that unique scalar IDs are ignored when new verifier state is
+ * compared to cached verifier state. For this test:
+ * - cached state has no id on r1
+ * - new state has a unique id on r1
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("6: (25) if r6 > 0x7 goto pc+1")
+__msg("7: (57) r1 &= 255")
+__msg("8: (bf) r2 = r10")
+__msg("from 6 to 8: safe")
+__msg("processed 12 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void ignore_unique_scalar_ids_cur(void)
+{
+	asm volatile (
+	"call %[bpf_ktime_get_ns];"
+	"r6 = r0;"
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* r1.id == r0.id */
+	"r1 = r0;"
+	/* make r1.id unique */
+	"r0 = 0;"
+	"if r6 > 7 goto l0_%=;"
+	/* clear r1 id, but keep the range compatible */
+	"r1 &= 0xff;"
+"l0_%=:"
+	/* get here in two states:
+	 * - first: r1 has no id (cached state)
+	 * - second: r1 has a unique id (should be considered equivalent)
+	 */
+	"r2 = r10;"
+	"r2 += r1;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Check that unique scalar IDs are ignored when new verifier state is
+ * compared to cached verifier state. For this test:
+ * - cached state has a unique id on r1
+ * - new state has no id on r1
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("6: (25) if r6 > 0x7 goto pc+1")
+__msg("7: (05) goto pc+1")
+__msg("9: (bf) r2 = r10")
+__msg("9: safe")
+__msg("processed 13 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void ignore_unique_scalar_ids_old(void)
+{
+	asm volatile (
+	"call %[bpf_ktime_get_ns];"
+	"r6 = r0;"
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	/* r1.id == r0.id */
+	"r1 = r0;"
+	/* make r1.id unique */
+	"r0 = 0;"
+	"if r6 > 7 goto l1_%=;"
+	"goto l0_%=;"
+"l1_%=:"
+	/* clear r1 id, but keep the range compatible */
+	"r1 &= 0xff;"
+"l0_%=:"
+	/* get here in two states:
+	 * - first: r1 has a unique id (cached state)
+	 * - second: r1 has no id (should be considered equivalent)
+	 */
+	"r2 = r10;"
+	"r2 += r1;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Check that two different scalar IDs in a verified state can't be
+ * mapped to the same scalar ID in current state.
+ */
+SEC("socket")
+__success __log_level(2)
+/* The exit instruction should be reachable from two states,
+ * use two matches and "processed .. insns" to ensure this.
+ */
+__msg("13: (95) exit")
+__msg("13: (95) exit")
+__msg("processed 18 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void two_old_ids_one_cur_id(void)
+{
+	asm volatile (
+	/* Give unique scalar IDs to r{6,7} */
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	"r6 = r0;"
+	"call %[bpf_ktime_get_ns];"
+	"r0 &= 0xff;"
+	"r7 = r0;"
+	"r0 = 0;"
+	/* Maybe make r{6,7} IDs identical */
+	"if r6 > r7 goto l0_%=;"
+	"goto l1_%=;"
+"l0_%=:"
+	"r6 = r7;"
+"l1_%=:"
+	/* Mark r{6,7} precise.
+	 * Get here in two states:
+	 * - first:  r6{.id=A}, r7{.id=B} (cached state)
+	 * - second: r6{.id=A}, r7{.id=A}
+	 * Currently we don't want to consider such states equivalent.
+	 * Thus "exit;" would be verified twice.
+	 */
+	"r2 = r10;"
+	"r2 += r6;"
+	"r2 += r7;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+/* Note the flag, see verifier.c:opt_subreg_zext_lo32_rnd_hi32() */
+__flag(BPF_F_TEST_RND_HI32)
+__success
+/* This test was added because of a bug in verifier.c:sync_linked_regs(),
+ * upon range propagation it destroyed subreg_def marks for registers.
+ * The subreg_def mark is used to decide whether zero extension instructions
+ * are needed when register is read. When BPF_F_TEST_RND_HI32 is set it
+ * also causes generation of statements to randomize upper halves of
+ * read registers.
+ *
+ * The test is written in a way to return an upper half of a register
+ * that is affected by range propagation and must have it's subreg_def
+ * preserved. This gives a return value of 0 and leads to undefined
+ * return value if subreg_def mark is not preserved.
+ */
+__retval(0)
+/* Check that verifier believes r1/r0 are zero at exit */
+__log_level(2)
+__msg("4: (77) r1 >>= 32                     ; R1=0")
+__msg("5: (bf) r0 = r1                       ; R0=0 R1=0")
+__msg("6: (95) exit")
+__msg("from 3 to 4")
+__msg("4: (77) r1 >>= 32                     ; R1=0")
+__msg("5: (bf) r0 = r1                       ; R0=0 R1=0")
+__msg("6: (95) exit")
+/* Verify that statements to randomize upper half of r1 had not been
+ * generated.
+ */
+__xlated("call unknown")
+__xlated("r0 &= 2147483647")
+__xlated("w1 = w0")
+/* This is how disasm.c prints BPF_ZEXT_REG at the moment, x86 and arm
+ * are the only CI archs that do not need zero extension for subregs.
+ */
+#if !defined(__TARGET_ARCH_x86) && !defined(__TARGET_ARCH_arm64)
+__xlated("w1 = w1")
+#endif
+__xlated("if w0 < 0xa goto pc+0")
+__xlated("r1 >>= 32")
+__xlated("r0 = r1")
+__xlated("exit")
+__naked void linked_regs_and_subreg_def(void)
+{
+	asm volatile (
+	"call %[bpf_ktime_get_ns];"
+	/* make sure r0 is in 32-bit range, otherwise w1 = w0 won't
+	 * assign same IDs to registers.
+	 */
+	"r0 &= 0x7fffffff;"
+	/* link w1 and w0 via ID */
+	"w1 = w0;"
+	/* 'if' statement propagates range info from w0 to w1,
+	 * but should not affect w1->subreg_def property.
+	 */
+	"if w0 < 10 goto +0;"
+	/* r1 is read here, on archs that require subreg zero
+	 * extension this would cause zext patch generation.
+	 */
+	"r1 >>= 32;"
+	"r0 = r1;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_sdiv.c b/tools/testing/selftests/bpf/progs/verifier_sdiv.c
new file mode 100644
index 000000000000..148d2299e5b4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_sdiv.c
@@ -0,0 +1,1224 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <limits.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#if (defined(__TARGET_ARCH_arm64) || defined(__TARGET_ARCH_x86) || \
+	(defined(__TARGET_ARCH_riscv) && __riscv_xlen == 64) || \
+	defined(__TARGET_ARCH_arm) || defined(__TARGET_ARCH_s390) || \
+	defined(__TARGET_ARCH_loongarch)) && \
+	__clang_major__ >= 18
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 1")
+__success __success_unpriv __retval(-20)
+__naked void sdiv32_non_zero_imm_1(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 2")
+__success __success_unpriv __retval(-20)
+__naked void sdiv32_non_zero_imm_2(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 3")
+__success __success_unpriv __retval(20)
+__naked void sdiv32_non_zero_imm_3(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 4")
+__success __success_unpriv __retval(-21)
+__naked void sdiv32_non_zero_imm_4(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 5")
+__success __success_unpriv __retval(-21)
+__naked void sdiv32_non_zero_imm_5(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 6")
+__success __success_unpriv __retval(21)
+__naked void sdiv32_non_zero_imm_6(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 7")
+__success __success_unpriv __retval(21)
+__naked void sdiv32_non_zero_imm_7(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero imm divisor, check 8")
+__success __success_unpriv __retval(20)
+__naked void sdiv32_non_zero_imm_8(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 1")
+__success __success_unpriv __retval(-20)
+__naked void sdiv32_non_zero_reg_1(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w1 = 2;						\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 2")
+__success __success_unpriv __retval(-20)
+__naked void sdiv32_non_zero_reg_2(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w1 = -2;					\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 3")
+__success __success_unpriv __retval(20)
+__naked void sdiv32_non_zero_reg_3(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w1 = -2;					\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 4")
+__success __success_unpriv __retval(-21)
+__naked void sdiv32_non_zero_reg_4(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w1 = 2;						\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 5")
+__success __success_unpriv __retval(-21)
+__naked void sdiv32_non_zero_reg_5(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = -2;					\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 6")
+__success __success_unpriv __retval(21)
+__naked void sdiv32_non_zero_reg_6(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w1 = -2;					\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 7")
+__success __success_unpriv __retval(21)
+__naked void sdiv32_non_zero_reg_7(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 2;						\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, non-zero reg divisor, check 8")
+__success __success_unpriv __retval(20)
+__naked void sdiv32_non_zero_reg_8(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w1 = 2;						\
+	w0 s/= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 1")
+__success __success_unpriv __retval(-20)
+__naked void sdiv64_non_zero_imm_1(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 2")
+__success __success_unpriv __retval(-20)
+__naked void sdiv64_non_zero_imm_2(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 3")
+__success __success_unpriv __retval(20)
+__naked void sdiv64_non_zero_imm_3(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 4")
+__success __success_unpriv __retval(-21)
+__naked void sdiv64_non_zero_imm_4(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r0 s/= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 5")
+__success __success_unpriv __retval(-21)
+__naked void sdiv64_non_zero_imm_5(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero imm divisor, check 6")
+__success __success_unpriv __retval(21)
+__naked void sdiv64_non_zero_imm_6(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r0 s/= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 1")
+__success __success_unpriv __retval(-20)
+__naked void sdiv64_non_zero_reg_1(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r1 = 2;						\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 2")
+__success __success_unpriv __retval(-20)
+__naked void sdiv64_non_zero_reg_2(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r1 = -2;					\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 3")
+__success __success_unpriv __retval(20)
+__naked void sdiv64_non_zero_reg_3(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r1 = -2;					\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 4")
+__success __success_unpriv __retval(-21)
+__naked void sdiv64_non_zero_reg_4(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r1 = 2;						\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 5")
+__success __success_unpriv __retval(-21)
+__naked void sdiv64_non_zero_reg_5(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r1 = -2;					\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, non-zero reg divisor, check 6")
+__success __success_unpriv __retval(21)
+__naked void sdiv64_non_zero_reg_6(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r1 = -2;					\
+	r0 s/= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 1")
+__success __success_unpriv __retval(-1)
+__naked void smod32_non_zero_imm_1(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 2")
+__success __success_unpriv __retval(1)
+__naked void smod32_non_zero_imm_2(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 3")
+__success __success_unpriv __retval(-1)
+__naked void smod32_non_zero_imm_3(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 4")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_imm_4(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 5")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_imm_5(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero imm divisor, check 6")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_imm_6(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 1")
+__success __success_unpriv __retval(-1)
+__naked void smod32_non_zero_reg_1(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w1 = 2;						\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 2")
+__success __success_unpriv __retval(1)
+__naked void smod32_non_zero_reg_2(void)
+{
+	asm volatile ("					\
+	w0 = 41;					\
+	w1 = -2;					\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 3")
+__success __success_unpriv __retval(-1)
+__naked void smod32_non_zero_reg_3(void)
+{
+	asm volatile ("					\
+	w0 = -41;					\
+	w1 = -2;					\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 4")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_reg_4(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w1 = 2;						\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 5")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_reg_5(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = -2;					\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, non-zero reg divisor, check 6")
+__success __success_unpriv __retval(0)
+__naked void smod32_non_zero_reg_6(void)
+{
+	asm volatile ("					\
+	w0 = -42;					\
+	w1 = -2;					\
+	w0 s%%= w1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 1")
+__success __success_unpriv __retval(-1)
+__naked void smod64_non_zero_imm_1(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 2")
+__success __success_unpriv __retval(1)
+__naked void smod64_non_zero_imm_2(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 3")
+__success __success_unpriv __retval(-1)
+__naked void smod64_non_zero_imm_3(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 4")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_imm_4(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 5")
+__success __success_unpriv __retval(-0)
+__naked void smod64_non_zero_imm_5(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 6")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_imm_6(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r0 s%%= -2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 7")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_imm_7(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero imm divisor, check 8")
+__success __success_unpriv __retval(1)
+__naked void smod64_non_zero_imm_8(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r0 s%%= 2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 1")
+__success __success_unpriv __retval(-1)
+__naked void smod64_non_zero_reg_1(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r1 = 2;						\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 2")
+__success __success_unpriv __retval(1)
+__naked void smod64_non_zero_reg_2(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r1 = -2;					\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 3")
+__success __success_unpriv __retval(-1)
+__naked void smod64_non_zero_reg_3(void)
+{
+	asm volatile ("					\
+	r0 = -41;					\
+	r1 = -2;					\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 4")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_reg_4(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r1 = 2;						\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 5")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_reg_5(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r1 = -2;					\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 6")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_reg_6(void)
+{
+	asm volatile ("					\
+	r0 = -42;					\
+	r1 = -2;					\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 7")
+__success __success_unpriv __retval(0)
+__naked void smod64_non_zero_reg_7(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r1 = 2;						\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, non-zero reg divisor, check 8")
+__success __success_unpriv __retval(1)
+__naked void smod64_non_zero_reg_8(void)
+{
+	asm volatile ("					\
+	r0 = 41;					\
+	r1 = 2;						\
+	r0 s%%= r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, zero divisor")
+__success __success_unpriv __retval(0)
+__naked void sdiv32_zero_divisor(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = -1;					\
+	w2 s/= w1;					\
+	w0 = w2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, zero divisor")
+__success __success_unpriv __retval(0)
+__naked void sdiv64_zero_divisor(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r1 = 0;						\
+	r2 = -1;					\
+	r2 s/= r1;					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, zero divisor")
+__success __success_unpriv __retval(-1)
+__naked void smod32_zero_divisor(void)
+{
+	asm volatile ("					\
+	w0 = 42;					\
+	w1 = 0;						\
+	w2 = -1;					\
+	w2 s%%= w1;					\
+	w0 = w2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, zero divisor")
+__success __success_unpriv __retval(-1)
+__naked void smod64_zero_divisor(void)
+{
+	asm volatile ("					\
+	r0 = 42;					\
+	r1 = 0;						\
+	r2 = -1;					\
+	r2 s%%= r1;					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, overflow r/r, LLONG_MIN/-1")
+__success __retval(1)
+__arch_x86_64
+__xlated("0: r2 = 0x8000000000000000")
+__xlated("2: r3 = -1")
+__xlated("3: r4 = r2")
+__xlated("4: r11 = r3")
+__xlated("5: r11 += 1")
+__xlated("6: if r11 > 0x1 goto pc+4")
+__xlated("7: if r11 == 0x0 goto pc+1")
+__xlated("8: r2 = 0")
+__xlated("9: r2 = -r2")
+__xlated("10: goto pc+1")
+__xlated("11: r2 s/= r3")
+__xlated("12: r0 = 0")
+__xlated("13: if r2 != r4 goto pc+1")
+__xlated("14: r0 = 1")
+__xlated("15: exit")
+__naked void sdiv64_overflow_rr(void)
+{
+	asm volatile ("					\
+	r2 = %[llong_min] ll;				\
+	r3 = -1;					\
+	r4 = r2;					\
+	r2 s/= r3;					\
+	r0 = 0;						\
+	if r2 != r4 goto +1;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, r/r, small_val/-1")
+__success __retval(-5)
+__arch_x86_64
+__xlated("0: r2 = 5")
+__xlated("1: r3 = -1")
+__xlated("2: r11 = r3")
+__xlated("3: r11 += 1")
+__xlated("4: if r11 > 0x1 goto pc+4")
+__xlated("5: if r11 == 0x0 goto pc+1")
+__xlated("6: r2 = 0")
+__xlated("7: r2 = -r2")
+__xlated("8: goto pc+1")
+__xlated("9: r2 s/= r3")
+__xlated("10: r0 = r2")
+__xlated("11: exit")
+__naked void sdiv64_rr_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	r2 = 5;						\
+	r3 = -1;					\
+	r2 s/= r3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, overflow r/i, LLONG_MIN/-1")
+__success __retval(1)
+__arch_x86_64
+__xlated("0: r2 = 0x8000000000000000")
+__xlated("2: r4 = r2")
+__xlated("3: r2 = -r2")
+__xlated("4: r0 = 0")
+__xlated("5: if r2 != r4 goto pc+1")
+__xlated("6: r0 = 1")
+__xlated("7: exit")
+__naked void sdiv64_overflow_ri(void)
+{
+	asm volatile ("					\
+	r2 = %[llong_min] ll;				\
+	r4 = r2;					\
+	r2 s/= -1;					\
+	r0 = 0;						\
+	if r2 != r4 goto +1;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV64, r/i, small_val/-1")
+__success __retval(-5)
+__arch_x86_64
+__xlated("0: r2 = 5")
+__xlated("1: r4 = r2")
+__xlated("2: r2 = -r2")
+__xlated("3: r0 = r2")
+__xlated("4: exit")
+__naked void sdiv64_ri_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	r2 = 5;						\
+	r4 = r2;					\
+	r2 s/= -1;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, overflow r/r, INT_MIN/-1")
+__success __retval(1)
+__arch_x86_64
+__xlated("0: w2 = -2147483648")
+__xlated("1: w3 = -1")
+__xlated("2: w4 = w2")
+__xlated("3: r11 = r3")
+__xlated("4: w11 += 1")
+__xlated("5: if w11 > 0x1 goto pc+4")
+__xlated("6: if w11 == 0x0 goto pc+1")
+__xlated("7: w2 = 0")
+__xlated("8: w2 = -w2")
+__xlated("9: goto pc+1")
+__xlated("10: w2 s/= w3")
+__xlated("11: r0 = 0")
+__xlated("12: if w2 != w4 goto pc+1")
+__xlated("13: r0 = 1")
+__xlated("14: exit")
+__naked void sdiv32_overflow_rr(void)
+{
+	asm volatile ("					\
+	w2 = %[int_min];				\
+	w3 = -1;					\
+	w4 = w2;					\
+	w2 s/= w3;					\
+	r0 = 0;						\
+	if w2 != w4 goto +1;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, r/r, small_val/-1")
+__success __retval(5)
+__arch_x86_64
+__xlated("0: w2 = -5")
+__xlated("1: w3 = -1")
+__xlated("2: w4 = w2")
+__xlated("3: r11 = r3")
+__xlated("4: w11 += 1")
+__xlated("5: if w11 > 0x1 goto pc+4")
+__xlated("6: if w11 == 0x0 goto pc+1")
+__xlated("7: w2 = 0")
+__xlated("8: w2 = -w2")
+__xlated("9: goto pc+1")
+__xlated("10: w2 s/= w3")
+__xlated("11: w0 = w2")
+__xlated("12: exit")
+__naked void sdiv32_rr_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	w2 = -5;					\
+	w3 = -1;					\
+	w4 = w2;					\
+	w2 s/= w3;					\
+	w0 = w2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, overflow r/i, INT_MIN/-1")
+__success __retval(1)
+__arch_x86_64
+__xlated("0: w2 = -2147483648")
+__xlated("1: w4 = w2")
+__xlated("2: w2 = -w2")
+__xlated("3: r0 = 0")
+__xlated("4: if w2 != w4 goto pc+1")
+__xlated("5: r0 = 1")
+__xlated("6: exit")
+__naked void sdiv32_overflow_ri(void)
+{
+	asm volatile ("					\
+	w2 = %[int_min];				\
+	w4 = w2;					\
+	w2 s/= -1;					\
+	r0 = 0;						\
+	if w2 != w4 goto +1;				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SDIV32, r/i, small_val/-1")
+__success __retval(-5)
+__arch_x86_64
+__xlated("0: w2 = 5")
+__xlated("1: w4 = w2")
+__xlated("2: w2 = -w2")
+__xlated("3: w0 = w2")
+__xlated("4: exit")
+__naked void sdiv32_ri_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	w2 = 5;						\
+	w4 = w2;					\
+	w2 s/= -1;					\
+	w0 = w2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, overflow r/r, LLONG_MIN/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: r2 = 0x8000000000000000")
+__xlated("2: r3 = -1")
+__xlated("3: r4 = r2")
+__xlated("4: r11 = r3")
+__xlated("5: r11 += 1")
+__xlated("6: if r11 > 0x1 goto pc+3")
+__xlated("7: if r11 == 0x1 goto pc+3")
+__xlated("8: w2 = 0")
+__xlated("9: goto pc+1")
+__xlated("10: r2 s%= r3")
+__xlated("11: r0 = r2")
+__xlated("12: exit")
+__naked void smod64_overflow_rr(void)
+{
+	asm volatile ("					\
+	r2 = %[llong_min] ll;				\
+	r3 = -1;					\
+	r4 = r2;					\
+	r2 s%%= r3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, r/r, small_val/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: r2 = 5")
+__xlated("1: r3 = -1")
+__xlated("2: r4 = r2")
+__xlated("3: r11 = r3")
+__xlated("4: r11 += 1")
+__xlated("5: if r11 > 0x1 goto pc+3")
+__xlated("6: if r11 == 0x1 goto pc+3")
+__xlated("7: w2 = 0")
+__xlated("8: goto pc+1")
+__xlated("9: r2 s%= r3")
+__xlated("10: r0 = r2")
+__xlated("11: exit")
+__naked void smod64_rr_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	r2 = 5;						\
+	r3 = -1;					\
+	r4 = r2;					\
+	r2 s%%= r3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, overflow r/i, LLONG_MIN/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: r2 = 0x8000000000000000")
+__xlated("2: r4 = r2")
+__xlated("3: w2 = 0")
+__xlated("4: r0 = r2")
+__xlated("5: exit")
+__naked void smod64_overflow_ri(void)
+{
+	asm volatile ("					\
+	r2 = %[llong_min] ll;				\
+	r4 = r2;					\
+	r2 s%%= -1;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm_const(llong_min, LLONG_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD64, r/i, small_val/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: r2 = 5")
+__xlated("1: r4 = r2")
+__xlated("2: w2 = 0")
+__xlated("3: r0 = r2")
+__xlated("4: exit")
+__naked void smod64_ri_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	r2 = 5;						\
+	r4 = r2;					\
+	r2 s%%= -1;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, overflow r/r, INT_MIN/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: w2 = -2147483648")
+__xlated("1: w3 = -1")
+__xlated("2: w4 = w2")
+__xlated("3: r11 = r3")
+__xlated("4: w11 += 1")
+__xlated("5: if w11 > 0x1 goto pc+3")
+__xlated("6: if w11 == 0x1 goto pc+4")
+__xlated("7: w2 = 0")
+__xlated("8: goto pc+1")
+__xlated("9: w2 s%= w3")
+__xlated("10: goto pc+1")
+__xlated("11: w2 = w2")
+__xlated("12: r0 = r2")
+__xlated("13: exit")
+__naked void smod32_overflow_rr(void)
+{
+	asm volatile ("					\
+	w2 = %[int_min];				\
+	w3 = -1;					\
+	w4 = w2;					\
+	w2 s%%= w3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, r/r, small_val/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: w2 = -5")
+__xlated("1: w3 = -1")
+__xlated("2: w4 = w2")
+__xlated("3: r11 = r3")
+__xlated("4: w11 += 1")
+__xlated("5: if w11 > 0x1 goto pc+3")
+__xlated("6: if w11 == 0x1 goto pc+4")
+__xlated("7: w2 = 0")
+__xlated("8: goto pc+1")
+__xlated("9: w2 s%= w3")
+__xlated("10: goto pc+1")
+__xlated("11: w2 = w2")
+__xlated("12: r0 = r2")
+__xlated("13: exit")
+__naked void smod32_rr_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	w2 = -5;				\
+	w3 = -1;					\
+	w4 = w2;					\
+	w2 s%%= w3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, overflow r/i, INT_MIN/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: w2 = -2147483648")
+__xlated("1: w4 = w2")
+__xlated("2: w2 = 0")
+__xlated("3: r0 = r2")
+__xlated("4: exit")
+__naked void smod32_overflow_ri(void)
+{
+	asm volatile ("					\
+	w2 = %[int_min];				\
+	w4 = w2;					\
+	w2 s%%= -1;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("SMOD32, r/i, small_val/-1")
+__success __retval(0)
+__arch_x86_64
+__xlated("0: w2 = 5")
+__xlated("1: w4 = w2")
+__xlated("2: w2 = 0")
+__xlated("3: w0 = w2")
+__xlated("4: exit")
+__naked void smod32_ri_divisor_neg_1(void)
+{
+	asm volatile ("					\
+	w2 = 5;						\
+	w4 = w2;					\
+	w2 s%%= -1;					\
+	w0 = w2;					\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+#else
+
+SEC("socket")
+__description("cpuv4 is not supported by compiler or jit, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_search_pruning.c b/tools/testing/selftests/bpf/progs/verifier_search_pruning.c
new file mode 100644
index 000000000000..f40e57251e94
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_search_pruning.c
@@ -0,0 +1,362 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/search_pruning.c */
+
+#include <linux/bpf.h>
+#include <../../../include/linux/filter.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("pointer/scalar confusion in state equality check (way 1)")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr as return value")
+__retval(POINTER_VALUE)
+__naked void state_equality_check_way_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 = *(u64*)(r0 + 0);				\
+	goto l1_%=;					\
+l0_%=:	r0 = r10;					\
+l1_%=:	goto l2_%=;					\
+l2_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("pointer/scalar confusion in state equality check (way 2)")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr as return value")
+__retval(POINTER_VALUE)
+__naked void state_equality_check_way_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	r0 = r10;					\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r0 + 0);				\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("liveness pruning and write screening")
+__failure __msg("R0 !read_ok")
+__naked void liveness_pruning_and_write_screening(void)
+{
+	asm volatile ("					\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* branch conditions teach us nothing about R2 */\
+	if r2 >= 0 goto l0_%=;				\
+	r0 = 0;						\
+l0_%=:	if r2 >= 0 goto l1_%=;				\
+	r0 = 0;						\
+l1_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("varlen_map_value_access pruning")
+__failure __msg("R0 unbounded memory access")
+__failure_unpriv __msg_unpriv("R0 leaks addr")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void varlen_map_value_access_pruning(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r0 + 0);				\
+	w2 = %[max_entries];				\
+	if r2 s> r1 goto l1_%=;				\
+	w1 = 0;						\
+l1_%=:	w1 <<= 2;					\
+	r0 += r1;					\
+	goto l2_%=;					\
+l2_%=:	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(max_entries, MAX_ENTRIES),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("search pruning: all branches should be verified (nop operation)")
+__failure __msg("R6 invalid mem access 'scalar'")
+__naked void should_be_verified_nop_operation(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r3 = *(u64*)(r0 + 0);				\
+	if r3 == 0xbeef goto l1_%=;			\
+	r4 = 0;						\
+	goto l2_%=;					\
+l1_%=:	r4 = 1;						\
+l2_%=:	*(u64*)(r10 - 16) = r4;				\
+	call %[bpf_ktime_get_ns];			\
+	r5 = *(u64*)(r10 - 16);				\
+	if r5 == 0 goto l0_%=;				\
+	r6 = 0;						\
+	r1 = 0xdead;					\
+	*(u64*)(r6 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("search pruning: all branches should be verified (invalid stack access)")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack off -16+0 size 8")
+__retval(0)
+__naked void be_verified_invalid_stack_access(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r3 = *(u64*)(r0 + 0);				\
+	r4 = 0;						\
+	if r3 == 0xbeef goto l1_%=;			\
+	*(u64*)(r10 - 16) = r4;				\
+	goto l2_%=;					\
+l1_%=:	*(u64*)(r10 - 24) = r4;				\
+l2_%=:	call %[bpf_ktime_get_ns];			\
+	r5 = *(u64*)(r10 - 16);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("precision tracking for u32 spill/fill")
+__failure __msg("R0 min value is outside of the allowed memory range")
+__naked void tracking_for_u32_spill_fill(void)
+{
+	asm volatile ("					\
+	r7 = r1;					\
+	call %[bpf_get_prandom_u32];			\
+	w6 = 32;					\
+	if r0 == 0 goto l0_%=;				\
+	w6 = 4;						\
+l0_%=:	/* Additional insns to introduce a pruning point. */\
+	call %[bpf_get_prandom_u32];			\
+	r3 = 0;						\
+	r3 = 0;						\
+	if r0 == 0 goto l1_%=;				\
+	r3 = 0;						\
+l1_%=:	/* u32 spill/fill */				\
+	*(u32*)(r10 - 8) = r6;				\
+	r8 = *(u32*)(r10 - 8);				\
+	/* out-of-bound map value access for r6=32 */	\
+	r1 = 0;						\
+	*(u64*)(r10 - 16) = r1;				\
+	r2 = r10;					\
+	r2 += -16;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r0 += r8;					\
+	r1 = *(u32*)(r0 + 0);				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("precision tracking for u32 spills, u64 fill")
+__failure __msg("div by zero")
+__naked void for_u32_spills_u64_fill(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r6 = r0;					\
+	w7 = 0xffffffff;				\
+	/* Additional insns to introduce a pruning point. */\
+	r3 = 1;						\
+	r3 = 1;						\
+	r3 = 1;						\
+	r3 = 1;						\
+	call %[bpf_get_prandom_u32];			\
+	if r0 == 0 goto l0_%=;				\
+	r3 = 1;						\
+l0_%=:	w3 /= 0;					\
+	/* u32 spills, u64 fill */			\
+	*(u32*)(r10 - 4) = r6;				\
+	*(u32*)(r10 - 8) = r7;				\
+	r8 = *(u64*)(r10 - 8);				\
+	/* if r8 != X goto pc+1  r8 known in fallthrough branch */\
+	if r8 != 0xffffffff goto l1_%=;			\
+	r3 = 1;						\
+l1_%=:	/* if r8 == X goto pc+1  condition always true on first\
+	 * traversal, so starts backtracking to mark r8 as requiring\
+	 * precision. r7 marked as needing precision. r6 not marked\
+	 * since it's not tracked.			\
+	 */						\
+	if r8 == 0xffffffff goto l2_%=;			\
+	/* fails if r8 correctly marked unknown after fill. */\
+	w3 /= 0;					\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("allocated_stack")
+__success __msg("processed 15 insns")
+__success_unpriv __msg_unpriv("") __log_level(1) __retval(0)
+__naked void allocated_stack(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	call %[bpf_get_prandom_u32];			\
+	r7 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r6;				\
+	r6 = *(u64*)(r10 - 8);				\
+	*(u8*)(r10 - 9) = r7;				\
+	r7 = *(u8*)(r10 - 9);				\
+l0_%=:	if r0 != 0 goto l1_%=;				\
+l1_%=:	if r0 != 0 goto l2_%=;				\
+l2_%=:	if r0 != 0 goto l3_%=;				\
+l3_%=:	if r0 != 0 goto l4_%=;				\
+l4_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/* The test performs a conditional 64-bit write to a stack location
+ * fp[-8], this is followed by an unconditional 8-bit write to fp[-8],
+ * then data is read from fp[-8]. This sequence is unsafe.
+ *
+ * The test would be mistakenly marked as safe w/o dst register parent
+ * preservation in verifier.c:copy_register_state() function.
+ *
+ * Note the usage of BPF_F_TEST_STATE_FREQ to force creation of the
+ * checkpoint state after conditional 64-bit assignment.
+ */
+
+SEC("socket")
+__description("write tracking and register parent chain bug")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack off -8+1 size 8")
+__retval(0) __flag(BPF_F_TEST_STATE_FREQ)
+__naked void and_register_parent_chain_bug(void)
+{
+	asm volatile ("					\
+	/* r6 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r6 = r0;					\
+	/* r0 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	/* if r0 > r6 goto +1 */			\
+	if r0 > r6 goto l0_%=;				\
+	/* *(u64 *)(r10 - 8) = 0xdeadbeef */		\
+	r0 = 0xdeadbeef;				\
+	*(u64*)(r10 - 8) = r0;				\
+l0_%=:	r1 = 42;					\
+	*(u8*)(r10 - 8) = r1;				\
+	r2 = *(u64*)(r10 - 8);				\
+	/* exit(0) */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* Without checkpoint forcibly inserted at the back-edge a loop this
+ * test would take a very long time to verify.
+ */
+SEC("kprobe")
+__failure __log_level(4)
+__msg("BPF program is too large.")
+__naked void short_loop1(void)
+{
+	asm volatile (
+	"   r7 = *(u16 *)(r1 +0);"
+	"1: r7 += 0x1ab064b9;"
+	"   .8byte %[jset];" /* same as 'if r7 & 0x702000 goto 1b;' */
+	"   r7 &= 0x1ee60e;"
+	"   r7 += r1;"
+	"   if r7 s> 0x37d2 goto +0;"
+	"   r0 = 0;"
+	"   exit;"
+	:
+	: __imm_insn(jset, BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x702000, -2))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_sock.c b/tools/testing/selftests/bpf/progs/verifier_sock.c
new file mode 100644
index 000000000000..a2132c72d3b8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_sock.c
@@ -0,0 +1,1169 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/sock.c */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u64);
+} map_reuseport_array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} map_sockhash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} map_sockmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} map_xskmap SEC(".maps");
+
+struct val {
+	int cnt;
+	struct bpf_spin_lock l;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SK_STORAGE);
+	__uint(max_entries, 0);
+	__type(key, int);
+	__type(value, struct val);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} sk_storage_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(__u32));
+} jmp_table SEC(".maps");
+
+SEC("cgroup/skb")
+__description("skb->sk: no NULL check")
+__failure __msg("invalid mem access 'sock_common_or_null'")
+__failure_unpriv
+__naked void skb_sk_no_null_check(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	r0 = *(u32*)(r1 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("skb->sk: sk->family [non fullsock field]")
+__success __success_unpriv __retval(0)
+__naked void sk_family_non_fullsock_field_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r0 = *(u32*)(r1 + %[bpf_sock_family]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_family, offsetof(struct bpf_sock, family))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("skb->sk: sk->type [fullsock field]")
+__failure __msg("invalid sock_common access")
+__failure_unpriv
+__naked void sk_sk_type_fullsock_field_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r0 = *(u32*)(r1 + %[bpf_sock_type]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_sk_fullsock(skb->sk): no !skb->sk check")
+__failure __msg("type=sock_common_or_null expected=sock_common")
+__failure_unpriv
+__naked void sk_no_skb_sk_check_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	call %[bpf_sk_fullsock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): no NULL check on ret")
+__failure __msg("invalid mem access 'sock_or_null'")
+__failure_unpriv
+__naked void no_null_check_on_ret_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	r0 = *(u32*)(r0 + %[bpf_sock_type]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->type [fullsock field]")
+__success __success_unpriv __retval(0)
+__naked void sk_sk_type_fullsock_field_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + %[bpf_sock_type]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->family [non fullsock field]")
+__success __success_unpriv __retval(0)
+__naked void sk_family_non_fullsock_field_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + %[bpf_sock_family]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_family, offsetof(struct bpf_sock, family))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->state [narrow load]")
+__success __success_unpriv __retval(0)
+__naked void sk_sk_state_narrow_load(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r0 + %[bpf_sock_state]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_state, offsetof(struct bpf_sock, state))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_port [word load] (backward compatibility)")
+__success __success_unpriv __retval(0)
+__naked void port_word_load_backward_compatibility(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + %[bpf_sock_dst_port]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_dst_port, offsetof(struct bpf_sock, dst_port))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_port [half load]")
+__success __success_unpriv __retval(0)
+__naked void sk_dst_port_half_load(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u16*)(r0 + %[bpf_sock_dst_port]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_dst_port, offsetof(struct bpf_sock, dst_port))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_port [half load] (invalid)")
+__failure __msg("invalid sock access")
+__failure_unpriv
+__naked void dst_port_half_load_invalid_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u16*)(r0 + %[__imm_0]);			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__imm_0, offsetof(struct bpf_sock, dst_port) + 2),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_port [byte load]")
+__success __success_unpriv __retval(0)
+__naked void sk_dst_port_byte_load(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r2 = *(u8*)(r0 + %[bpf_sock_dst_port]);		\
+	r2 = *(u8*)(r0 + %[__imm_0]);			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__imm_0, offsetof(struct bpf_sock, dst_port) + 1),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_dst_port, offsetof(struct bpf_sock, dst_port))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_port [byte load] (invalid)")
+__failure __msg("invalid sock access")
+__failure_unpriv
+__naked void dst_port_byte_load_invalid(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r0 + %[__imm_0]);			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__imm_0, offsetof(struct bpf_sock, dst_port) + 2),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): past sk->dst_port [half load] (invalid)")
+__failure __msg("invalid sock access")
+__failure_unpriv
+__naked void dst_port_half_load_invalid_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u16*)(r0 + %[bpf_sock_dst_port__end]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_dst_port__end, offsetofend(struct bpf_sock, dst_port))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->dst_ip6 [load 2nd byte]")
+__success __success_unpriv __retval(0)
+__naked void dst_ip6_load_2nd_byte(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r0 + %[__imm_0]);			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__imm_0, offsetof(struct bpf_sock, dst_ip6[0]) + 1),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->type [narrow load]")
+__success __success_unpriv __retval(0)
+__naked void sk_sk_type_narrow_load(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r0 + %[bpf_sock_type]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): sk->protocol [narrow load]")
+__success __success_unpriv __retval(0)
+__naked void sk_sk_protocol_narrow_load(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r0 + %[bpf_sock_protocol]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_protocol, offsetof(struct bpf_sock, protocol))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("sk_fullsock(skb->sk): beyond last field")
+__failure __msg("invalid sock access")
+__failure_unpriv
+__naked void skb_sk_beyond_last_field_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + %[bpf_sock_rx_queue_mapping__end]);\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_sock_rx_queue_mapping__end, offsetofend(struct bpf_sock, rx_queue_mapping))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(skb->sk): no !skb->sk check")
+__failure __msg("type=sock_common_or_null expected=sock_common")
+__failure_unpriv
+__naked void sk_no_skb_sk_check_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	call %[bpf_tcp_sock];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(skb->sk): no NULL check on ret")
+__failure __msg("invalid mem access 'tcp_sock_or_null'")
+__failure_unpriv
+__naked void no_null_check_on_ret_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_tcp_sock];				\
+	r0 = *(u32*)(r0 + %[bpf_tcp_sock_snd_cwnd]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_tcp_sock_snd_cwnd, offsetof(struct bpf_tcp_sock, snd_cwnd))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(skb->sk): tp->snd_cwnd")
+__success __success_unpriv __retval(0)
+__naked void skb_sk_tp_snd_cwnd_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 = *(u32*)(r0 + %[bpf_tcp_sock_snd_cwnd]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_tcp_sock_snd_cwnd, offsetof(struct bpf_tcp_sock, snd_cwnd))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(skb->sk): tp->bytes_acked")
+__success __success_unpriv __retval(0)
+__naked void skb_sk_tp_bytes_acked(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 = *(u64*)(r0 + %[bpf_tcp_sock_bytes_acked]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_tcp_sock_bytes_acked, offsetof(struct bpf_tcp_sock, bytes_acked))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(skb->sk): beyond last field")
+__failure __msg("invalid tcp_sock access")
+__failure_unpriv
+__naked void skb_sk_beyond_last_field_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r0 = *(u64*)(r0 + %[bpf_tcp_sock_bytes_acked__end]);\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_tcp_sock_bytes_acked__end, offsetofend(struct bpf_tcp_sock, bytes_acked))
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("bpf_tcp_sock(bpf_sk_fullsock(skb->sk)): tp->snd_cwnd")
+__success __success_unpriv __retval(0)
+__naked void skb_sk_tp_snd_cwnd_2(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l2_%=;				\
+	exit;						\
+l2_%=:	r0 = *(u32*)(r0 + %[bpf_tcp_sock_snd_cwnd]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk)),
+	  __imm_const(bpf_tcp_sock_snd_cwnd, offsetof(struct bpf_tcp_sock, snd_cwnd))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bpf_sk_release(skb->sk)")
+__failure __msg("R1 must be referenced when passed to release function")
+__naked void bpf_sk_release_skb_sk(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 == 0 goto l0_%=;				\
+	call %[bpf_sk_release];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bpf_sk_release(bpf_sk_fullsock(skb->sk))")
+__failure __msg("R1 must be referenced when passed to release function")
+__naked void bpf_sk_fullsock_skb_sk(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_release];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bpf_sk_release(bpf_tcp_sock(skb->sk))")
+__failure __msg("R1 must be referenced when passed to release function")
+__naked void bpf_tcp_sock_skb_sk(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_tcp_sock];				\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r1 = r0;					\
+	call %[bpf_sk_release];				\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_release),
+	  __imm(bpf_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("sk_storage_get(map, skb->sk, NULL, 0): value == NULL")
+__success __retval(0)
+__naked void sk_null_0_value_null(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r4 = 0;						\
+	r3 = 0;						\
+	r2 = r0;					\
+	r1 = %[sk_storage_map] ll;			\
+	call %[bpf_sk_storage_get];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_storage_get),
+	  __imm_addr(sk_storage_map),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("sk_storage_get(map, skb->sk, 1, 1): value == 1")
+__failure __msg("R3 type=scalar expected=fp")
+__naked void sk_1_1_value_1(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r4 = 1;						\
+	r3 = 1;						\
+	r2 = r0;					\
+	r1 = %[sk_storage_map] ll;			\
+	call %[bpf_sk_storage_get];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_storage_get),
+	  __imm_addr(sk_storage_map),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("sk_storage_get(map, skb->sk, &stack_value, 1): stack_value")
+__success __retval(0)
+__naked void stack_value_1_stack_value(void)
+{
+	asm volatile ("					\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	call %[bpf_sk_fullsock];			\
+	if r0 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r4 = 1;						\
+	r3 = r10;					\
+	r3 += -8;					\
+	r2 = r0;					\
+	r1 = %[sk_storage_map] ll;			\
+	call %[bpf_sk_storage_get];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_fullsock),
+	  __imm(bpf_sk_storage_get),
+	  __imm_addr(sk_storage_map),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("bpf_map_lookup_elem(smap, &key)")
+__failure __msg("cannot pass map_type 24 into func bpf_map_lookup_elem")
+__naked void map_lookup_elem_smap_key(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[sk_storage_map] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(sk_storage_map)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("bpf_map_lookup_elem(xskmap, &key); xs->queue_id")
+__success __retval(0)
+__naked void xskmap_key_xs_queue_id(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_xskmap] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r0 = *(u32*)(r0 + %[bpf_xdp_sock_queue_id]);	\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_xskmap),
+	  __imm_const(bpf_xdp_sock_queue_id, offsetof(struct bpf_xdp_sock, queue_id))
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("bpf_map_lookup_elem(sockmap, &key)")
+__failure __msg("Unreleased reference id=2 alloc_insn=6")
+__naked void map_lookup_elem_sockmap_key(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_sockmap] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_sockmap)
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("bpf_map_lookup_elem(sockhash, &key)")
+__failure __msg("Unreleased reference id=2 alloc_insn=6")
+__naked void map_lookup_elem_sockhash_key(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_sockhash] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_sockhash)
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("bpf_map_lookup_elem(sockmap, &key); sk->type [fullsock field]; bpf_sk_release(sk)")
+__success
+__naked void field_bpf_sk_release_sk_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_sockmap] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = r0;					\
+	r0 = *(u32*)(r0 + %[bpf_sock_type]);		\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_sk_release),
+	  __imm_addr(map_sockmap),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("sk_skb")
+__description("bpf_map_lookup_elem(sockhash, &key); sk->type [fullsock field]; bpf_sk_release(sk)")
+__success
+__naked void field_bpf_sk_release_sk_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_sockhash] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = r0;					\
+	r0 = *(u32*)(r0 + %[bpf_sock_type]);		\
+	call %[bpf_sk_release];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_sk_release),
+	  __imm_addr(map_sockhash),
+	  __imm_const(bpf_sock_type, offsetof(struct bpf_sock, type))
+	: __clobber_all);
+}
+
+SEC("sk_reuseport")
+__description("bpf_sk_select_reuseport(ctx, reuseport_array, &key, flags)")
+__success
+__naked void ctx_reuseport_array_key_flags(void)
+{
+	asm volatile ("					\
+	r4 = 0;						\
+	r2 = 0;						\
+	*(u32*)(r10 - 4) = r2;				\
+	r3 = r10;					\
+	r3 += -4;					\
+	r2 = %[map_reuseport_array] ll;			\
+	call %[bpf_sk_select_reuseport];		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_select_reuseport),
+	  __imm_addr(map_reuseport_array)
+	: __clobber_all);
+}
+
+SEC("sk_reuseport")
+__description("bpf_sk_select_reuseport(ctx, sockmap, &key, flags)")
+__success
+__naked void reuseport_ctx_sockmap_key_flags(void)
+{
+	asm volatile ("					\
+	r4 = 0;						\
+	r2 = 0;						\
+	*(u32*)(r10 - 4) = r2;				\
+	r3 = r10;					\
+	r3 += -4;					\
+	r2 = %[map_sockmap] ll;				\
+	call %[bpf_sk_select_reuseport];		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_select_reuseport),
+	  __imm_addr(map_sockmap)
+	: __clobber_all);
+}
+
+SEC("sk_reuseport")
+__description("bpf_sk_select_reuseport(ctx, sockhash, &key, flags)")
+__success
+__naked void reuseport_ctx_sockhash_key_flags(void)
+{
+	asm volatile ("					\
+	r4 = 0;						\
+	r2 = 0;						\
+	*(u32*)(r10 - 4) = r2;				\
+	r3 = r10;					\
+	r3 += -4;					\
+	r2 = %[map_sockmap] ll;				\
+	call %[bpf_sk_select_reuseport];		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_select_reuseport),
+	  __imm_addr(map_sockmap)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("mark null check on return value of bpf_skc_to helpers")
+__failure __msg("invalid mem access")
+__naked void of_bpf_skc_to_helpers(void)
+{
+	asm volatile ("					\
+	r1 = *(u64*)(r1 + %[__sk_buff_sk]);		\
+	if r1 != 0 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	r6 = r1;					\
+	call %[bpf_skc_to_tcp_sock];			\
+	r7 = r0;					\
+	r1 = r6;					\
+	call %[bpf_skc_to_tcp_request_sock];		\
+	r8 = r0;					\
+	if r8 != 0 goto l1_%=;				\
+	r0 = 0;						\
+	exit;						\
+l1_%=:	r0 = *(u8*)(r7 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_skc_to_tcp_request_sock),
+	  __imm(bpf_skc_to_tcp_sock),
+	  __imm_const(__sk_buff_sk, offsetof(struct __sk_buff, sk))
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("sk->src_ip6[0] [load 1st byte]")
+__failure __msg("invalid bpf_context access off=28 size=2")
+__naked void post_bind4_read_src_ip6(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_ip6_0]);	\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_ip6_0, offsetof(struct bpf_sock, src_ip6[0]))
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind4")
+__description("sk->mark [load mark]")
+__failure __msg("invalid bpf_context access off=16 size=2")
+__naked void post_bind4_read_mark(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_mark]);		\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_mark, offsetof(struct bpf_sock, mark))
+	: __clobber_all);
+}
+
+SEC("cgroup/post_bind6")
+__description("sk->src_ip4 [load src_ip4]")
+__failure __msg("invalid bpf_context access off=24 size=2")
+__naked void post_bind6_read_src_ip4(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_ip4]);		\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_ip4, offsetof(struct bpf_sock, src_ip4))
+	: __clobber_all);
+}
+
+SEC("cgroup/sock_create")
+__description("sk->src_port [word load]")
+__failure __msg("invalid bpf_context access off=44 size=2")
+__naked void sock_create_read_src_port(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r7 = *(u16*)(r6 + %[bpf_sock_src_port]);	\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm_const(bpf_sock_src_port, offsetof(struct bpf_sock, src_port))
+	: __clobber_all);
+}
+
+__noinline
+long skb_pull_data2(struct __sk_buff *sk, __u32 len)
+{
+	return bpf_skb_pull_data(sk, len);
+}
+
+__noinline
+long skb_pull_data1(struct __sk_buff *sk, __u32 len)
+{
+	return skb_pull_data2(sk, len);
+}
+
+/* global function calls bpf_skb_pull_data(), which invalidates packet
+ * pointers established before global function call.
+ */
+SEC("tc")
+__failure __msg("invalid mem access")
+int invalidate_pkt_pointers_from_global_func(struct __sk_buff *sk)
+{
+	int *p = (void *)(long)sk->data;
+
+	if ((void *)(p + 1) > (void *)(long)sk->data_end)
+		return TCX_DROP;
+	skb_pull_data1(sk, 0);
+	*p = 42; /* this is unsafe */
+	return TCX_PASS;
+}
+
+__noinline
+long xdp_pull_data2(struct xdp_md *x, __u32 len)
+{
+	return bpf_xdp_pull_data(x, len);
+}
+
+__noinline
+long xdp_pull_data1(struct xdp_md *x, __u32 len)
+{
+	return xdp_pull_data2(x, len);
+}
+
+/* global function calls bpf_xdp_pull_data(), which invalidates packet
+ * pointers established before global function call.
+ */
+SEC("xdp")
+__failure __msg("invalid mem access")
+int invalidate_xdp_pkt_pointers_from_global_func(struct xdp_md *x)
+{
+	int *p = (void *)(long)x->data;
+
+	if ((void *)(p + 1) > (void *)(long)x->data_end)
+		return XDP_DROP;
+	xdp_pull_data1(x, 0);
+	*p = 42; /* this is unsafe */
+	return XDP_PASS;
+}
+
+/* XDP packet changing kfunc calls invalidate packet pointers */
+SEC("xdp")
+__failure __msg("invalid mem access")
+int invalidate_xdp_pkt_pointers(struct xdp_md *x)
+{
+	int *p = (void *)(long)x->data;
+
+	if ((void *)(p + 1) > (void *)(long)x->data_end)
+		return XDP_DROP;
+	bpf_xdp_pull_data(x, 0);
+	*p = 42; /* this is unsafe */
+	return XDP_PASS;
+}
+
+__noinline
+int tail_call(struct __sk_buff *sk)
+{
+	bpf_tail_call_static(sk, &jmp_table, 0);
+	return 0;
+}
+
+static __noinline
+int static_tail_call(struct __sk_buff *sk)
+{
+	bpf_tail_call_static(sk, &jmp_table, 0);
+	return 0;
+}
+
+/* Tail calls in sub-programs invalidate packet pointers. */
+SEC("tc")
+__failure __msg("invalid mem access")
+int invalidate_pkt_pointers_by_global_tail_call(struct __sk_buff *sk)
+{
+	int *p = (void *)(long)sk->data;
+
+	if ((void *)(p + 1) > (void *)(long)sk->data_end)
+		return TCX_DROP;
+	tail_call(sk);
+	*p = 42; /* this is unsafe */
+	return TCX_PASS;
+}
+
+/* Tail calls in static sub-programs invalidate packet pointers. */
+SEC("tc")
+__failure __msg("invalid mem access")
+int invalidate_pkt_pointers_by_static_tail_call(struct __sk_buff *sk)
+{
+	int *p = (void *)(long)sk->data;
+
+	if ((void *)(p + 1) > (void *)(long)sk->data_end)
+		return TCX_DROP;
+	static_tail_call(sk);
+	*p = 42; /* this is unsafe */
+	return TCX_PASS;
+}
+
+/* Direct tail calls do not invalidate packet pointers. */
+SEC("tc")
+__success
+int invalidate_pkt_pointers_by_tail_call(struct __sk_buff *sk)
+{
+	int *p = (void *)(long)sk->data;
+
+	if ((void *)(p + 1) > (void *)(long)sk->data_end)
+		return TCX_DROP;
+	bpf_tail_call_static(sk, &jmp_table, 0);
+	*p = 42; /* this is NOT unsafe: tail calls don't return */
+	return TCX_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_sock_addr.c b/tools/testing/selftests/bpf/progs/verifier_sock_addr.c
new file mode 100644
index 000000000000..9c31448a0f52
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_sock_addr.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf_sockopt_helpers.h>
+#include "bpf_misc.h"
+
+SEC("cgroup/recvmsg4")
+__success
+int recvmsg4_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/recvmsg4")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int recvmsg4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/recvmsg6")
+__success
+int recvmsg6_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/recvmsg6")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int recvmsg6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/recvmsg_unix")
+__success
+int recvmsg_unix_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/recvmsg_unix")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int recvmsg_unix_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/sendmsg4")
+__success
+int sendmsg4_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/sendmsg4")
+__success
+int sendmsg4_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/sendmsg4")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int sendmsg4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/sendmsg6")
+__success
+int sendmsg6_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/sendmsg6")
+__success
+int sendmsg6_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/sendmsg6")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int sendmsg6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/sendmsg_unix")
+__success
+int sendmsg_unix_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/sendmsg_unix")
+__success
+int sendmsg_unix_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/sendmsg_unix")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int sendmsg_unix_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/getpeername4")
+__success
+int getpeername4_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getpeername4")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getpeername4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/getpeername6")
+__success
+int getpeername6_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getpeername6")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getpeername6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/getpeername_unix")
+__success
+int getpeername_unix_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getpeername_unix")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getpeername_unix_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/getsockname4")
+__success
+int getsockname4_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockname4")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getsockname4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/getsockname6")
+__success
+int getsockname6_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockname6")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getsockname6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/getsockname_unix")
+__success
+int getsockname_unix_good_return_code(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/getsockname_unix")
+__failure __msg("At program exit the register R0 has smin=0 smax=0 should have been in [1, 1]")
+int getsockname_unix_unix_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/bind4")
+__success
+int bind4_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/bind4")
+__success
+int bind4_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/bind4")
+__success
+int bind4_good_return_code_2(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/bind4")
+__success
+int bind4_good_return_code_3(struct bpf_sock_addr *ctx)
+{
+	return 3;
+}
+
+SEC("cgroup/bind4")
+__failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]")
+int bind4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 4;
+}
+
+SEC("cgroup/bind6")
+__success
+int bind6_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/bind6")
+__success
+int bind6_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/bind6")
+__success
+int bind6_good_return_code_2(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/bind6")
+__success
+int bind6_good_return_code_3(struct bpf_sock_addr *ctx)
+{
+	return 3;
+}
+
+SEC("cgroup/bind6")
+__failure __msg("At program exit the register R0 has smin=4 smax=4 should have been in [0, 3]")
+int bind6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 4;
+}
+
+SEC("cgroup/connect4")
+__success
+int connect4_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/connect4")
+__success
+int connect4_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/connect4")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int connect4_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/connect6")
+__success
+int connect6_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/connect6")
+__success
+int connect6_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/connect6")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int connect6_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+SEC("cgroup/connect_unix")
+__success
+int connect_unix_good_return_code_0(struct bpf_sock_addr *ctx)
+{
+	return 0;
+}
+
+SEC("cgroup/connect_unix")
+__success
+int connect_unix_good_return_code_1(struct bpf_sock_addr *ctx)
+{
+	return 1;
+}
+
+SEC("cgroup/connect_unix")
+__failure __msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
+int connect_unix_bad_return_code(struct bpf_sock_addr *ctx)
+{
+	return 2;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_sockmap_mutate.c b/tools/testing/selftests/bpf/progs/verifier_sockmap_mutate.c
new file mode 100644
index 000000000000..fe4b123187b8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_sockmap_mutate.c
@@ -0,0 +1,187 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "bpf_misc.h"
+
+#define __always_unused __attribute__((unused))
+
+char _license[] SEC("license") = "GPL";
+
+struct sock {
+} __attribute__((preserve_access_index));
+
+struct bpf_iter__sockmap {
+	union {
+		struct sock *sk;
+	};
+} __attribute__((preserve_access_index));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKHASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sockhash SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_SOCKMAP);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, int);
+} sockmap SEC(".maps");
+
+enum { CG_OK = 1 };
+
+int zero = 0;
+
+static __always_inline void test_sockmap_delete(void)
+{
+	bpf_map_delete_elem(&sockmap, &zero);
+	bpf_map_delete_elem(&sockhash, &zero);
+}
+
+static __always_inline void test_sockmap_update(void *sk)
+{
+	if (sk) {
+		bpf_map_update_elem(&sockmap, &zero, sk, BPF_ANY);
+		bpf_map_update_elem(&sockhash, &zero, sk, BPF_ANY);
+	}
+}
+
+static __always_inline void test_sockmap_lookup_and_update(void)
+{
+	struct bpf_sock *sk = bpf_map_lookup_elem(&sockmap, &zero);
+
+	if (sk) {
+		test_sockmap_update(sk);
+		bpf_sk_release(sk);
+	}
+}
+
+static __always_inline void test_sockmap_mutate(void *sk)
+{
+	test_sockmap_delete();
+	test_sockmap_update(sk);
+}
+
+static __always_inline void test_sockmap_lookup_and_mutate(void)
+{
+	test_sockmap_delete();
+	test_sockmap_lookup_and_update();
+}
+
+SEC("action")
+__success
+int test_sched_act(struct __sk_buff *skb)
+{
+	test_sockmap_mutate(skb->sk);
+	return 0;
+}
+
+SEC("classifier")
+__success
+int test_sched_cls(struct __sk_buff *skb)
+{
+	test_sockmap_mutate(skb->sk);
+	return 0;
+}
+
+SEC("flow_dissector")
+__success
+int test_flow_dissector_delete(struct __sk_buff *skb __always_unused)
+{
+	test_sockmap_delete();
+	return 0;
+}
+
+SEC("flow_dissector")
+__failure __msg("program of this type cannot use helper bpf_sk_release")
+int test_flow_dissector_update(struct __sk_buff *skb __always_unused)
+{
+	test_sockmap_lookup_and_update(); /* no access to skb->sk */
+	return 0;
+}
+
+SEC("iter/sockmap")
+__success
+int test_trace_iter(struct bpf_iter__sockmap *ctx)
+{
+	test_sockmap_mutate(ctx->sk);
+	return 0;
+}
+
+SEC("raw_tp/kfree")
+__failure __msg("cannot update sockmap in this context")
+int test_raw_tp_delete(const void *ctx __always_unused)
+{
+	test_sockmap_delete();
+	return 0;
+}
+
+SEC("raw_tp/kfree")
+__failure __msg("cannot update sockmap in this context")
+int test_raw_tp_update(const void *ctx __always_unused)
+{
+	test_sockmap_lookup_and_update();
+	return 0;
+}
+
+SEC("sk_lookup")
+__success
+int test_sk_lookup(struct bpf_sk_lookup *ctx)
+{
+	test_sockmap_mutate(ctx->sk);
+	return 0;
+}
+
+SEC("sk_reuseport")
+__success
+int test_sk_reuseport(struct sk_reuseport_md *ctx)
+{
+	test_sockmap_mutate(ctx->sk);
+	return 0;
+}
+
+SEC("socket")
+__success
+int test_socket_filter(struct __sk_buff *skb)
+{
+	test_sockmap_mutate(skb->sk);
+	return 0;
+}
+
+SEC("sockops")
+__success
+int test_sockops_delete(struct bpf_sock_ops *ctx __always_unused)
+{
+	test_sockmap_delete();
+	return CG_OK;
+}
+
+SEC("sockops")
+__failure __msg("cannot update sockmap in this context")
+int test_sockops_update(struct bpf_sock_ops *ctx)
+{
+	test_sockmap_update(ctx->sk);
+	return CG_OK;
+}
+
+SEC("sockops")
+__success
+int test_sockops_update_dedicated(struct bpf_sock_ops *ctx)
+{
+	bpf_sock_map_update(ctx, &sockmap, &zero, BPF_ANY);
+	bpf_sock_hash_update(ctx, &sockhash, &zero, BPF_ANY);
+	return CG_OK;
+}
+
+SEC("xdp")
+__success
+int test_xdp(struct xdp_md *ctx __always_unused)
+{
+	test_sockmap_lookup_and_mutate();
+	return XDP_PASS;
+}
diff --git a/tools/testing/selftests/bpf/progs/verifier_spill_fill.c b/tools/testing/selftests/bpf/progs/verifier_spill_fill.c
new file mode 100644
index 000000000000..7a13dbd794b2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_spill_fill.c
@@ -0,0 +1,1282 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/spill_fill.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include <../../../tools/include/linux/filter.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_RINGBUF);
+	__uint(max_entries, 4096);
+} map_ringbuf SEC(".maps");
+
+SEC("socket")
+__description("check valid spill/fill")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(POINTER_VALUE)
+__naked void check_valid_spill_fill(void)
+{
+	asm volatile ("					\
+	/* spill R1(ctx) into stack */			\
+	*(u64*)(r10 - 8) = r1;				\
+	/* fill it back into R2 */			\
+	r2 = *(u64*)(r10 - 8);				\
+	/* should be able to access R0 = *(R2 + 8) */	\
+	/* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check valid spill/fill, skb mark")
+__success __success_unpriv __retval(0)
+__naked void valid_spill_fill_skb_mark(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	*(u64*)(r10 - 8) = r6;				\
+	r0 = *(u64*)(r10 - 8);				\
+	r0 = *(u32*)(r0 + %[__sk_buff_mark]);		\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check valid spill/fill, ptr to mem")
+__success __success_unpriv __retval(0)
+__naked void spill_fill_ptr_to_mem(void)
+{
+	asm volatile ("					\
+	/* reserve 8 byte ringbuf memory */		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	/* store a pointer to the reserved memory in R6 */\
+	r6 = r0;					\
+	/* check whether the reservation was successful */\
+	if r0 == 0 goto l0_%=;				\
+	/* spill R6(mem) into the stack */		\
+	*(u64*)(r10 - 8) = r6;				\
+	/* fill it back in R7 */			\
+	r7 = *(u64*)(r10 - 8);				\
+	/* should be able to access *(R7) = 0 */	\
+	r1 = 0;						\
+	*(u64*)(r7 + 0) = r1;				\
+	/* submit the reserved ringbuf memory */	\
+	r1 = r7;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_submit];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ringbuf_reserve),
+	  __imm(bpf_ringbuf_submit),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check with invalid reg offset 0")
+__failure __msg("R0 pointer arithmetic on ringbuf_mem_or_null prohibited")
+__failure_unpriv
+__naked void with_invalid_reg_offset_0(void)
+{
+	asm volatile ("					\
+	/* reserve 8 byte ringbuf memory */		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = %[map_ringbuf] ll;				\
+	r2 = 8;						\
+	r3 = 0;						\
+	call %[bpf_ringbuf_reserve];			\
+	/* store a pointer to the reserved memory in R6 */\
+	r6 = r0;					\
+	/* add invalid offset to memory or NULL */	\
+	r0 += 1;					\
+	/* check whether the reservation was successful */\
+	if r0 == 0 goto l0_%=;				\
+	/* should not be able to access *(R7) = 0 */	\
+	r1 = 0;						\
+	*(u32*)(r6 + 0) = r1;				\
+	/* submit the reserved ringbuf memory */	\
+	r1 = r6;					\
+	r2 = 0;						\
+	call %[bpf_ringbuf_submit];			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ringbuf_reserve),
+	  __imm(bpf_ringbuf_submit),
+	  __imm_addr(map_ringbuf)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("check corrupted spill/fill")
+__failure __msg("R0 invalid mem access 'scalar'")
+__msg_unpriv("attempt to corrupt spilled")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void check_corrupted_spill_fill(void)
+{
+	asm volatile ("					\
+	/* spill R1(ctx) into stack */			\
+	*(u64*)(r10 - 8) = r1;				\
+	/* mess up with R1 pointer on stack */		\
+	r0 = 0x23;					\
+	*(u8*)(r10 - 7) = r0;				\
+	/* fill back into R0 is fine for priv.		\
+	 * R0 now becomes SCALAR_VALUE.			\
+	 */						\
+	r0 = *(u64*)(r10 - 8);				\
+	/* Load from R0 should fail. */			\
+	r0 = *(u64*)(r0 + 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check corrupted spill/fill, LSB")
+__success __failure_unpriv __msg_unpriv("attempt to corrupt spilled")
+__retval(POINTER_VALUE)
+__naked void check_corrupted_spill_fill_lsb(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r1;				\
+	r0 = 0xcafe;					\
+	*(u16*)(r10 - 8) = r0;				\
+	r0 = *(u64*)(r10 - 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("check corrupted spill/fill, MSB")
+__success __failure_unpriv __msg_unpriv("attempt to corrupt spilled")
+__retval(POINTER_VALUE)
+__naked void check_corrupted_spill_fill_msb(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r1;				\
+	r0 = 0x12345678;				\
+	*(u32*)(r10 - 4) = r0;				\
+	r0 = *(u64*)(r10 - 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill and refill a u32 const scalar.  Offset to skb->data")
+__success __retval(0)
+__naked void scalar_offset_to_skb_data_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	w4 = 20;					\
+	*(u32*)(r10 - 8) = r4;				\
+	r4 = *(u32*)(r10 - 8);				\
+	r0 = r2;					\
+	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4=20 */	\
+	r0 += r4;					\
+	/* if (r0 > r3) R0=pkt,off=20 R2=pkt R3=pkt_end R4=20 */\
+	if r0 > r3 goto l0_%=;				\
+	/* r0 = *(u32 *)r2 R0=pkt,off=20,r=20 R2=pkt,r=20 R3=pkt_end R4=20 */\
+	r0 = *(u32*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("Spill a u32 const, refill from another half of the uninit u32 from the stack")
+/* in privileged mode reads from uninitialized stack locations are permitted */
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack off -4+0 size 4")
+__retval(0)
+__naked void uninit_u32_from_the_stack(void)
+{
+	asm volatile ("					\
+	w4 = 20;					\
+	*(u32*)(r10 - 8) = r4;				\
+	/* r4 = *(u32 *)(r10 -4) fp-8=????rrrr*/	\
+	r4 = *(u32*)(r10 - 4);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill a u32 const scalar.  Refill as u16.  Offset to skb->data")
+__success __retval(0)
+__naked void u16_offset_to_skb_data(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	w4 = 20;					\
+	*(u32*)(r10 - 8) = r4;				\
+	"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r4 = *(u16*)(r10 - 8);"
+#else
+	"r4 = *(u16*)(r10 - 6);"
+#endif
+	"						\
+	r0 = r2;					\
+	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4=20 */\
+	r0 += r4;					\
+	/* if (r0 > r3) R0=pkt,off=20 R2=pkt R3=pkt_end R4=20 */\
+	if r0 > r3 goto l0_%=;				\
+	/* r0 = *(u32 *)r2 R0=pkt,off=20 R2=pkt R3=pkt_end R4=20 */\
+	r0 = *(u32*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill u32 const scalars.  Refill as u64.  Offset to skb->data")
+__failure __msg("math between pkt pointer and register with unbounded min value is not allowed")
+__naked void u64_offset_to_skb_data(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	w6 = 0;						\
+	w7 = 20;					\
+	*(u32*)(r10 - 4) = r6;				\
+	*(u32*)(r10 - 8) = r7;				\
+	r4 = *(u64*)(r10 - 8);				\
+	r0 = r2;					\
+	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4= */	\
+	r0 += r4;					\
+	if r0 > r3 goto l0_%=;				\
+	r0 = *(u32*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill a u32 const scalar.  Refill as u16 from MSB.  Offset to skb->data")
+__failure __msg("invalid access to packet")
+__naked void _6_offset_to_skb_data(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	w4 = 20;					\
+	*(u32*)(r10 - 8) = r4;				\
+	"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r4 = *(u16*)(r10 - 6);"
+#else
+	"r4 = *(u16*)(r10 - 8);"
+#endif
+	"						\
+	r0 = r2;					\
+	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4=umax=65535 */\
+	r0 += r4;					\
+	/* if (r0 > r3) R0=pkt,umax=65535 R2=pkt R3=pkt_end R4=umax=65535 */\
+	if r0 > r3 goto l0_%=;				\
+	/* r0 = *(u32 *)r2 R0=pkt,umax=65535 R2=pkt R3=pkt_end R4=20 */\
+	r0 = *(u32*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill and refill a u32 const scalar at non 8byte aligned stack addr.  Offset to skb->data")
+__failure __msg("invalid access to packet")
+__naked void addr_offset_to_skb_data(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	w4 = 20;					\
+	*(u32*)(r10 - 8) = r4;				\
+	*(u32*)(r10 - 4) = r4;				\
+	r4 = *(u32*)(r10 - 4);				\
+	r0 = r2;					\
+	/* r0 += r4 R0=pkt R2=pkt R3=pkt_end R4=umax=U32_MAX */\
+	r0 += r4;					\
+	/* if (r0 > r3) R0=pkt,umax=U32_MAX R2=pkt R3=pkt_end R4= */\
+	if r0 > r3 goto l0_%=;				\
+	/* r0 = *(u32 *)r2 R0=pkt,umax=U32_MAX R2=pkt R3=pkt_end R4= */\
+	r0 = *(u32*)(r2 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill and refill a umax=40 bounded scalar.  Offset to skb->data")
+__success __retval(0)
+__naked void scalar_offset_to_skb_data_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r3 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r4 = *(u64*)(r1 + %[__sk_buff_tstamp]);		\
+	if r4 <= 40 goto l0_%=;				\
+	r0 = 0;						\
+	exit;						\
+l0_%=:	/* *(u32 *)(r10 -8) = r4 R4=umax=40 */		\
+	*(u32*)(r10 - 8) = r4;				\
+	/* r4 = (*u32 *)(r10 - 8) */			\
+	r4 = *(u32*)(r10 - 8);				\
+	/* r2 += r4 R2=pkt R4=umax=40 */		\
+	r2 += r4;					\
+	/* r0 = r2 R2=pkt,umax=40 R4=umax=40 */		\
+	r0 = r2;					\
+	/* r2 += 20 R0=pkt,umax=40 R2=pkt,umax=40 */	\
+	r2 += 20;					\
+	/* if (r2 > r3) R0=pkt,umax=40 R2=pkt,off=20,umax=40 */\
+	if r2 > r3 goto l1_%=;				\
+	/* r0 = *(u32 *)r0 R0=pkt,r=20,umax=40 R2=pkt,off=20,r=20,umax=40 */\
+	r0 = *(u32*)(r0 + 0);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end)),
+	  __imm_const(__sk_buff_tstamp, offsetof(struct __sk_buff, tstamp))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("Spill a u32 scalar at fp-4 and then at fp-8")
+__success __retval(0)
+__naked void and_then_at_fp_8(void)
+{
+	asm volatile ("					\
+	w4 = 4321;					\
+	*(u32*)(r10 - 4) = r4;				\
+	*(u32*)(r10 - 8) = r4;				\
+	r4 = *(u64*)(r10 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("xdp")
+__description("32-bit spill of 64-bit reg should clear ID")
+__failure __msg("math between ctx pointer and 4294967295 is not allowed")
+__naked void spill_32bit_of_64bit_fail(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	/* Roll one bit to force the verifier to track both branches. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x8;					\
+	/* Put a large number into r1. */		\
+	r1 = 0xffffffff;				\
+	r1 <<= 32;					\
+	r1 += r0;					\
+	/* Assign an ID to r1. */			\
+	r2 = r1;					\
+	/* 32-bit spill r1 to stack - should clear the ID! */\
+	*(u32*)(r10 - 8) = r1;				\
+	/* 32-bit fill r2 from stack. */		\
+	r2 = *(u32*)(r10 - 8);				\
+	/* Compare r2 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners. If the ID was mistakenly preserved on spill, this would\
+	 * cause the verifier to think that r1 is also equal to zero in one of\
+	 * the branches, and equal to eight on the other branch.\
+	 */						\
+	r3 = 0;						\
+	if r2 != r3 goto l0_%=;				\
+l0_%=:	r1 >>= 32;					\
+	/* At this point, if the verifier thinks that r1 is 0, an out-of-bounds\
+	 * read will happen, because it actually contains 0xffffffff.\
+	 */						\
+	r6 += r1;					\
+	r0 = *(u32*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("16-bit spill of 32-bit reg should clear ID")
+__failure __msg("dereference of modified ctx ptr R6 off=65535 disallowed")
+__naked void spill_16bit_of_32bit_fail(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	/* Roll one bit to force the verifier to track both branches. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x8;					\
+	/* Put a large number into r1. */		\
+	w1 = 0xffff0000;				\
+	r1 += r0;					\
+	/* Assign an ID to r1. */			\
+	r2 = r1;					\
+	/* 16-bit spill r1 to stack - should clear the ID! */\
+	*(u16*)(r10 - 8) = r1;				\
+	/* 16-bit fill r2 from stack. */		\
+	r2 = *(u16*)(r10 - 8);				\
+	/* Compare r2 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners. If the ID was mistakenly preserved on spill, this would\
+	 * cause the verifier to think that r1 is also equal to zero in one of\
+	 * the branches, and equal to eight on the other branch.\
+	 */						\
+	r3 = 0;						\
+	if r2 != r3 goto l0_%=;				\
+l0_%=:	r1 >>= 16;					\
+	/* At this point, if the verifier thinks that r1 is 0, an out-of-bounds\
+	 * read will happen, because it actually contains 0xffff.\
+	 */						\
+	r6 += r1;					\
+	r0 = *(u32*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("raw_tp")
+__log_level(2)
+__success
+__msg("fp-8=0m??scalar()")
+__msg("fp-16=00mm??scalar()")
+__msg("fp-24=00mm???scalar()")
+__naked void spill_subregs_preserve_stack_zero(void)
+{
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+
+		/* 32-bit subreg spill with ZERO, MISC, and INVALID */
+		".8byte %[fp1_u8_st_zero];"   /* ZERO, LLVM-18+: *(u8 *)(r10 -1) = 0; */
+		"*(u8 *)(r10 -2) = r0;"       /* MISC */
+		/* fp-3 and fp-4 stay INVALID */
+		"*(u32 *)(r10 -8) = r0;"
+
+		/* 16-bit subreg spill with ZERO, MISC, and INVALID */
+		".8byte %[fp10_u16_st_zero];" /* ZERO, LLVM-18+: *(u16 *)(r10 -10) = 0; */
+		"*(u16 *)(r10 -12) = r0;"     /* MISC */
+		/* fp-13 and fp-14 stay INVALID */
+		"*(u16 *)(r10 -16) = r0;"
+
+		/* 8-bit subreg spill with ZERO, MISC, and INVALID */
+		".8byte %[fp18_u16_st_zero];" /* ZERO, LLVM-18+: *(u16 *)(r18 -10) = 0; */
+		"*(u16 *)(r10 -20) = r0;"     /* MISC */
+		/* fp-21, fp-22, and fp-23 stay INVALID */
+		"*(u8 *)(r10 -24) = r0;"
+
+		"r0 = 0;"
+		"exit;"
+	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm_insn(fp1_u8_st_zero, BPF_ST_MEM(BPF_B, BPF_REG_FP, -1, 0)),
+	  __imm_insn(fp10_u16_st_zero, BPF_ST_MEM(BPF_H, BPF_REG_FP, -10, 0)),
+	  __imm_insn(fp18_u16_st_zero, BPF_ST_MEM(BPF_H, BPF_REG_FP, -18, 0))
+	: __clobber_all);
+}
+
+char single_byte_buf[1] SEC(".data.single_byte_buf");
+
+SEC("raw_tp")
+__log_level(2)
+__success
+/* fp-8 is spilled IMPRECISE value zero (represented by a zero value fake reg) */
+__msg("2: (7a) *(u64 *)(r10 -8) = 0          ; R10=fp0 fp-8=0")
+/* but fp-16 is spilled IMPRECISE zero const reg */
+__msg("4: (7b) *(u64 *)(r10 -16) = r0        ; R0=0 R10=fp0 fp-16=0")
+/* validate that assigning R2 from STACK_SPILL with zero value  doesn't mark register
+ * precise immediately; if necessary, it will be marked precise later
+ */
+__msg("6: (71) r2 = *(u8 *)(r10 -1)          ; R2=0 R10=fp0 fp-8=0")
+/* similarly, when R2 is assigned from spilled register, it is initially
+ * imprecise, but will be marked precise later once it is used in precise context
+ */
+__msg("10: (71) r2 = *(u8 *)(r10 -9)         ; R2=0 R10=fp0 fp-16=0")
+__msg("11: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 11 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 10: (71) r2 = *(u8 *)(r10 -9)")
+__msg("mark_precise: frame0: regs= stack=-16 before 9: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs= stack=-16 before 8: (73) *(u8 *)(r1 +0) = r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 7: (0f) r1 += r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 6: (71) r2 = *(u8 *)(r10 -1)")
+__msg("mark_precise: frame0: regs= stack=-16 before 5: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs= stack=-16 before 4: (7b) *(u64 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 3: (b7) r0 = 0")
+__naked void partial_stack_load_preserves_zeros(void)
+{
+	asm volatile (
+		/* fp-8 is value zero (represented by a zero value fake reg) */
+		".8byte %[fp8_st_zero];" /* LLVM-18+: *(u64 *)(r10 -8) = 0; */
+
+		/* fp-16 is const zero register */
+		"r0 = 0;"
+		"*(u64 *)(r10 -16) = r0;"
+
+		/* load single U8 from non-aligned spilled value zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u8 *)(r10 -1);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U8 from non-aligned ZERO REG slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u8 *)(r10 -9);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U16 from non-aligned spilled value zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u16 *)(r10 -2);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U16 from non-aligned ZERO REG slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u16 *)(r10 -10);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U32 from non-aligned spilled value zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u32 *)(r10 -4);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U32 from non-aligned ZERO REG slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u32 *)(r10 -12);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* for completeness, load U64 from STACK_ZERO slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u64 *)(r10 -8);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* for completeness, load U64 from ZERO REG slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u64 *)(r10 -16);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		"r0 = 0;"
+		"exit;"
+	:
+	: __imm_ptr(single_byte_buf),
+	  __imm_insn(fp8_st_zero, BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0))
+	: __clobber_common);
+}
+
+SEC("raw_tp")
+__log_level(2)
+__success
+/* fp-4 is STACK_ZERO */
+__msg("2: (62) *(u32 *)(r10 -4) = 0          ; R10=fp0 fp-8=0000????")
+__msg("4: (71) r2 = *(u8 *)(r10 -1)          ; R2=0 R10=fp0 fp-8=0000????")
+__msg("5: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 5 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 4: (71) r2 = *(u8 *)(r10 -1)")
+__naked void partial_stack_load_preserves_partial_zeros(void)
+{
+	asm volatile (
+		/* fp-4 is value zero */
+		".8byte %[fp4_st_zero];" /* LLVM-18+: *(u32 *)(r10 -4) = 0; */
+
+		/* load single U8 from non-aligned stack zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u8 *)(r10 -1);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U16 from non-aligned stack zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u16 *)(r10 -2);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U32 from non-aligned stack zero slot */
+		"r1 = %[single_byte_buf];"
+		"r2 = *(u32 *)(r10 -4);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		"r0 = 0;"
+		"exit;"
+	:
+	: __imm_ptr(single_byte_buf),
+	  __imm_insn(fp4_st_zero, BPF_ST_MEM(BPF_W, BPF_REG_FP, -4, 0))
+	: __clobber_common);
+}
+
+char two_byte_buf[2] SEC(".data.two_byte_buf");
+
+SEC("raw_tp")
+__log_level(2) __flag(BPF_F_TEST_STATE_FREQ)
+__success
+/* make sure fp-8 is IMPRECISE fake register spill */
+__msg("3: (7a) *(u64 *)(r10 -8) = 1          ; R10=fp0 fp-8=1")
+/* and fp-16 is spilled IMPRECISE const reg */
+__msg("5: (7b) *(u64 *)(r10 -16) = r0        ; R0=1 R10=fp0 fp-16=1")
+/* validate load from fp-8, which was initialized using BPF_ST_MEM */
+__msg("8: (79) r2 = *(u64 *)(r10 -8)         ; R2=1 R10=fp0 fp-8=1")
+__msg("9: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 9 first_idx 7 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 8: (79) r2 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-8 before 7: (bf) r1 = r6")
+/* note, fp-8 is precise, fp-16 is not yet precise, we'll get there */
+__msg("mark_precise: frame0: parent state regs= stack=-8:  R0=1 R1=ctx() R6=map_value(map=.data.two_byte_,ks=4,vs=2) R10=fp0 fp-8=P1 fp-16=1")
+__msg("mark_precise: frame0: last_idx 6 first_idx 3 subseq_idx 7")
+__msg("mark_precise: frame0: regs= stack=-8 before 6: (05) goto pc+0")
+__msg("mark_precise: frame0: regs= stack=-8 before 5: (7b) *(u64 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs= stack=-8 before 4: (b7) r0 = 1")
+__msg("mark_precise: frame0: regs= stack=-8 before 3: (7a) *(u64 *)(r10 -8) = 1")
+__msg("10: R1=map_value(map=.data.two_byte_,ks=4,vs=2,off=1) R2=1")
+/* validate load from fp-16, which was initialized using BPF_STX_MEM */
+__msg("12: (79) r2 = *(u64 *)(r10 -16)       ; R2=1 R10=fp0 fp-16=1")
+__msg("13: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 13 first_idx 7 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 12: (79) r2 = *(u64 *)(r10 -16)")
+__msg("mark_precise: frame0: regs= stack=-16 before 11: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs= stack=-16 before 10: (73) *(u8 *)(r1 +0) = r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 9: (0f) r1 += r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 8: (79) r2 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-16 before 7: (bf) r1 = r6")
+/* now both fp-8 and fp-16 are precise, very good */
+__msg("mark_precise: frame0: parent state regs= stack=-16:  R0=1 R1=ctx() R6=map_value(map=.data.two_byte_,ks=4,vs=2) R10=fp0 fp-8=P1 fp-16=P1")
+__msg("mark_precise: frame0: last_idx 6 first_idx 3 subseq_idx 7")
+__msg("mark_precise: frame0: regs= stack=-16 before 6: (05) goto pc+0")
+__msg("mark_precise: frame0: regs= stack=-16 before 5: (7b) *(u64 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (b7) r0 = 1")
+__msg("14: R1=map_value(map=.data.two_byte_,ks=4,vs=2,off=1) R2=1")
+__naked void stack_load_preserves_const_precision(void)
+{
+	asm volatile (
+		/* establish checkpoint with state that has no stack slots;
+		 * if we bubble up to this state without finding desired stack
+		 * slot, then it's a bug and should be caught
+		 */
+		"goto +0;"
+
+		/* fp-8 is const 1 *fake* register */
+		".8byte %[fp8_st_one];" /* LLVM-18+: *(u64 *)(r10 -8) = 1; */
+
+		/* fp-16 is const 1 register */
+		"r0 = 1;"
+		"*(u64 *)(r10 -16) = r0;"
+
+		/* force checkpoint to check precision marks preserved in parent states */
+		"goto +0;"
+
+		/* load single U64 from aligned FAKE_REG=1 slot */
+		"r1 = %[two_byte_buf];"
+		"r2 = *(u64 *)(r10 -8);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U64 from aligned REG=1 slot */
+		"r1 = %[two_byte_buf];"
+		"r2 = *(u64 *)(r10 -16);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		"r0 = 0;"
+		"exit;"
+	:
+	: __imm_ptr(two_byte_buf),
+	  __imm_insn(fp8_st_one, BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 1))
+	: __clobber_common);
+}
+
+SEC("raw_tp")
+__log_level(2) __flag(BPF_F_TEST_STATE_FREQ)
+__success
+/* make sure fp-8 is 32-bit FAKE subregister spill */
+__msg("3: (62) *(u32 *)(r10 -8) = 1          ; R10=fp0 fp-8=????1")
+/* but fp-16 is spilled IMPRECISE zero const reg */
+__msg("5: (63) *(u32 *)(r10 -16) = r0        ; R0=1 R10=fp0 fp-16=????1")
+/* validate load from fp-8, which was initialized using BPF_ST_MEM */
+__msg("8: (61) r2 = *(u32 *)(r10 -8)         ; R2=1 R10=fp0 fp-8=????1")
+__msg("9: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 9 first_idx 7 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 8: (61) r2 = *(u32 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-8 before 7: (bf) r1 = r6")
+__msg("mark_precise: frame0: parent state regs= stack=-8:  R0=1 R1=ctx() R6=map_value(map=.data.two_byte_,ks=4,vs=2) R10=fp0 fp-8=????P1 fp-16=????1")
+__msg("mark_precise: frame0: last_idx 6 first_idx 3 subseq_idx 7")
+__msg("mark_precise: frame0: regs= stack=-8 before 6: (05) goto pc+0")
+__msg("mark_precise: frame0: regs= stack=-8 before 5: (63) *(u32 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs= stack=-8 before 4: (b7) r0 = 1")
+__msg("mark_precise: frame0: regs= stack=-8 before 3: (62) *(u32 *)(r10 -8) = 1")
+__msg("10: R1=map_value(map=.data.two_byte_,ks=4,vs=2,off=1) R2=1")
+/* validate load from fp-16, which was initialized using BPF_STX_MEM */
+__msg("12: (61) r2 = *(u32 *)(r10 -16)       ; R2=1 R10=fp0 fp-16=????1")
+__msg("13: (0f) r1 += r2")
+__msg("mark_precise: frame0: last_idx 13 first_idx 7 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r2 stack= before 12: (61) r2 = *(u32 *)(r10 -16)")
+__msg("mark_precise: frame0: regs= stack=-16 before 11: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs= stack=-16 before 10: (73) *(u8 *)(r1 +0) = r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 9: (0f) r1 += r2")
+__msg("mark_precise: frame0: regs= stack=-16 before 8: (61) r2 = *(u32 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-16 before 7: (bf) r1 = r6")
+__msg("mark_precise: frame0: parent state regs= stack=-16:  R0=1 R1=ctx() R6=map_value(map=.data.two_byte_,ks=4,vs=2) R10=fp0 fp-8=????P1 fp-16=????P1")
+__msg("mark_precise: frame0: last_idx 6 first_idx 3 subseq_idx 7")
+__msg("mark_precise: frame0: regs= stack=-16 before 6: (05) goto pc+0")
+__msg("mark_precise: frame0: regs= stack=-16 before 5: (63) *(u32 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (b7) r0 = 1")
+__msg("14: R1=map_value(map=.data.two_byte_,ks=4,vs=2,off=1) R2=1")
+__naked void stack_load_preserves_const_precision_subreg(void)
+{
+	asm volatile (
+		/* establish checkpoint with state that has no stack slots;
+		 * if we bubble up to this state without finding desired stack
+		 * slot, then it's a bug and should be caught
+		 */
+		"goto +0;"
+
+		/* fp-8 is const 1 *fake* SUB-register */
+		".8byte %[fp8_st_one];" /* LLVM-18+: *(u32 *)(r10 -8) = 1; */
+
+		/* fp-16 is const 1 SUB-register */
+		"r0 = 1;"
+		"*(u32 *)(r10 -16) = r0;"
+
+		/* force checkpoint to check precision marks preserved in parent states */
+		"goto +0;"
+
+		/* load single U32 from aligned FAKE_REG=1 slot */
+		"r1 = %[two_byte_buf];"
+		"r2 = *(u32 *)(r10 -8);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		/* load single U32 from aligned REG=1 slot */
+		"r1 = %[two_byte_buf];"
+		"r2 = *(u32 *)(r10 -16);"
+		"r1 += r2;"
+		"*(u8 *)(r1 + 0) = r2;" /* this should be fine */
+
+		"r0 = 0;"
+		"exit;"
+	:
+	: __imm_ptr(two_byte_buf),
+	  __imm_insn(fp8_st_one, BPF_ST_MEM(BPF_W, BPF_REG_FP, -8, 1)) /* 32-bit spill */
+	: __clobber_common);
+}
+
+SEC("xdp")
+__description("32-bit spilled reg range should be tracked")
+__success __retval(0)
+__naked void spill_32bit_range_track(void)
+{
+	asm volatile("					\
+	call %[bpf_ktime_get_ns];			\
+	/* Make r0 bounded. */				\
+	r0 &= 65535;					\
+	/* Assign an ID to r0. */			\
+	r1 = r0;					\
+	/* 32-bit spill r0 to stack. */			\
+	*(u32*)(r10 - 8) = r0;				\
+	/* Boundary check on r0. */			\
+	if r0 < 1 goto l0_%=;				\
+	/* 32-bit fill r1 from stack. */		\
+	r1 = *(u32*)(r10 - 8);				\
+	/* r1 == r0 => r1 >= 1 always. */		\
+	if r1 >= 1 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it.   \
+	 * Do an invalid memory access if the verifier	\
+	 * follows it.					\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("64-bit spill of 64-bit reg should assign ID")
+__success __retval(0)
+__naked void spill_64bit_of_64bit_ok(void)
+{
+	asm volatile ("					\
+	/* Roll one bit to make the register inexact. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x80000000;				\
+	r0 <<= 32;					\
+	/* 64-bit spill r0 to stack - should assign an ID. */\
+	*(u64*)(r10 - 8) = r0;				\
+	/* 64-bit fill r1 from stack - should preserve the ID. */\
+	r1 = *(u64*)(r10 - 8);				\
+	/* Compare r1 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners.					\
+	 */						\
+	r2 = 0;						\
+	if r1 != r2 goto l0_%=;				\
+	/* The result of this comparison is predefined. */\
+	if r0 == r2 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("32-bit spill of 32-bit reg should assign ID")
+__success __retval(0)
+__naked void spill_32bit_of_32bit_ok(void)
+{
+	asm volatile ("					\
+	/* Roll one bit to make the register inexact. */\
+	call %[bpf_get_prandom_u32];			\
+	w0 &= 0x80000000;				\
+	/* 32-bit spill r0 to stack - should assign an ID. */\
+	*(u32*)(r10 - 8) = r0;				\
+	/* 32-bit fill r1 from stack - should preserve the ID. */\
+	r1 = *(u32*)(r10 - 8);				\
+	/* Compare r1 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners.					\
+	 */						\
+	r2 = 0;						\
+	if r1 != r2 goto l0_%=;				\
+	/* The result of this comparison is predefined. */\
+	if r0 == r2 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("16-bit spill of 16-bit reg should assign ID")
+__success __retval(0)
+__naked void spill_16bit_of_16bit_ok(void)
+{
+	asm volatile ("					\
+	/* Roll one bit to make the register inexact. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x8000;					\
+	/* 16-bit spill r0 to stack - should assign an ID. */\
+	*(u16*)(r10 - 8) = r0;				\
+	/* 16-bit fill r1 from stack - should preserve the ID. */\
+	r1 = *(u16*)(r10 - 8);				\
+	/* Compare r1 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners.					\
+	 */						\
+	r2 = 0;						\
+	if r1 != r2 goto l0_%=;				\
+	/* The result of this comparison is predefined. */\
+	if r0 == r2 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("8-bit spill of 8-bit reg should assign ID")
+__success __retval(0)
+__naked void spill_8bit_of_8bit_ok(void)
+{
+	asm volatile ("					\
+	/* Roll one bit to make the register inexact. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x80;					\
+	/* 8-bit spill r0 to stack - should assign an ID. */\
+	*(u8*)(r10 - 8) = r0;				\
+	/* 8-bit fill r1 from stack - should preserve the ID. */\
+	r1 = *(u8*)(r10 - 8);				\
+	/* Compare r1 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners.					\
+	 */						\
+	r2 = 0;						\
+	if r1 != r2 goto l0_%=;				\
+	/* The result of this comparison is predefined. */\
+	if r0 == r2 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("spill unbounded reg, then range check src")
+__success __retval(0)
+__naked void spill_unbounded(void)
+{
+	asm volatile ("					\
+	/* Produce an unbounded scalar. */		\
+	call %[bpf_get_prandom_u32];			\
+	/* Spill r0 to stack. */			\
+	*(u64*)(r10 - 8) = r0;				\
+	/* Boundary check on r0. */			\
+	if r0 > 16 goto l0_%=;				\
+	/* Fill r0 from stack. */			\
+	r0 = *(u64*)(r10 - 8);				\
+	/* Boundary check on r0 with predetermined result. */\
+	if r0 <= 16 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("32-bit fill after 64-bit spill")
+__success __retval(0)
+__naked void fill_32bit_after_spill_64bit(void)
+{
+	asm volatile("					\
+	/* Randomize the upper 32 bits. */		\
+	call %[bpf_get_prandom_u32];			\
+	r0 <<= 32;					\
+	/* 64-bit spill r0 to stack. */			\
+	*(u64*)(r10 - 8) = r0;				\
+	/* 32-bit fill r0 from stack. */		\
+	"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r0 = *(u32*)(r10 - 8);"
+#else
+	"r0 = *(u32*)(r10 - 4);"
+#endif
+	"						\
+	/* Boundary check on r0 with predetermined result. */\
+	if r0 == 0 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("32-bit fill after 64-bit spill of 32-bit value should preserve ID")
+__success __retval(0)
+__naked void fill_32bit_after_spill_64bit_preserve_id(void)
+{
+	asm volatile ("					\
+	/* Randomize the lower 32 bits. */		\
+	call %[bpf_get_prandom_u32];			\
+	w0 &= 0xffffffff;				\
+	/* 64-bit spill r0 to stack - should assign an ID. */\
+	*(u64*)(r10 - 8) = r0;				\
+	/* 32-bit fill r1 from stack - should preserve the ID. */\
+	"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r1 = *(u32*)(r10 - 8);"
+#else
+	"r1 = *(u32*)(r10 - 4);"
+#endif
+	"						\
+	/* Compare r1 with another register to trigger sync_linked_regs. */\
+	r2 = 0;						\
+	if r1 != r2 goto l0_%=;				\
+	/* The result of this comparison is predefined. */\
+	if r0 == r2 goto l0_%=;				\
+	/* Dead branch: the verifier should prune it. Do an invalid memory\
+	 * access if the verifier follows it.		\
+	 */						\
+	r0 = *(u64*)(r9 + 0);				\
+	exit;						\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("32-bit fill after 64-bit spill should clear ID")
+__failure __msg("math between ctx pointer and 4294967295 is not allowed")
+__naked void fill_32bit_after_spill_64bit_clear_id(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	/* Roll one bit to force the verifier to track both branches. */\
+	call %[bpf_get_prandom_u32];			\
+	r0 &= 0x8;					\
+	/* Put a large number into r1. */		\
+	r1 = 0xffffffff;				\
+	r1 <<= 32;					\
+	r1 += r0;					\
+	/* 64-bit spill r1 to stack - should assign an ID. */\
+	*(u64*)(r10 - 8) = r1;				\
+	/* 32-bit fill r2 from stack - should clear the ID. */\
+	"
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	"r2 = *(u32*)(r10 - 8);"
+#else
+	"r2 = *(u32*)(r10 - 4);"
+#endif
+	"						\
+	/* Compare r2 with another register to trigger sync_linked_regs.\
+	 * Having one random bit is important here, otherwise the verifier cuts\
+	 * the corners. If the ID was mistakenly preserved on fill, this would\
+	 * cause the verifier to think that r1 is also equal to zero in one of\
+	 * the branches, and equal to eight on the other branch.\
+	 */						\
+	r3 = 0;						\
+	if r2 != r3 goto l0_%=;				\
+l0_%=:	r1 >>= 32;					\
+	/* The verifier shouldn't propagate r2's range to r1, so it should\
+	 * still remember r1 = 0xffffffff and reject the below.\
+	 */						\
+	r6 += r1;					\
+	r0 = *(u32*)(r6 + 0);				\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+/* stacksafe(): check if stack spill of an imprecise scalar in old state
+ * is considered equivalent to STACK_{MISC,INVALID} in cur state.
+ */
+SEC("socket")
+__success __log_level(2)
+__msg("8: (79) r1 = *(u64 *)(r10 -8)")
+__msg("8: safe")
+__msg("processed 11 insns")
+/* STACK_INVALID should prevent verifier in unpriv mode from
+ * considering states equivalent and force an error on second
+ * verification path (entry - label 1 - label 2).
+ */
+__failure_unpriv
+__msg_unpriv("8: (79) r1 = *(u64 *)(r10 -8)")
+__msg_unpriv("9: (95) exit")
+__msg_unpriv("8: (79) r1 = *(u64 *)(r10 -8)")
+__msg_unpriv("invalid read from stack off -8+2 size 8")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void old_imprecise_scalar_vs_cur_stack_misc(void)
+{
+	asm volatile(
+	/* get a random value for branching */
+	"call %[bpf_ktime_get_ns];"
+	"if r0 == 0 goto 1f;"
+	/* conjure scalar at fp-8 */
+	"r0 = 42;"
+	"*(u64*)(r10 - 8) = r0;"
+	"goto 2f;"
+"1:"
+	/* conjure STACK_{MISC,INVALID} at fp-8 */
+	"call %[bpf_ktime_get_ns];"
+	"*(u16*)(r10 - 8) = r0;"
+	"*(u16*)(r10 - 4) = r0;"
+"2:"
+	/* read fp-8, should be considered safe on second visit */
+	"r1 = *(u64*)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* stacksafe(): check that stack spill of a precise scalar in old state
+ * is not considered equivalent to STACK_MISC in cur state.
+ */
+SEC("socket")
+__success __log_level(2)
+/* verifier should visit 'if r1 == 0x2a ...' two times:
+ * - once for path entry - label 2;
+ * - once for path entry - label 1 - label 2.
+ */
+__msg("if r1 == 0x2a goto pc+0")
+__msg("if r1 == 0x2a goto pc+0")
+__msg("processed 15 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void old_precise_scalar_vs_cur_stack_misc(void)
+{
+	asm volatile(
+	/* get a random value for branching */
+	"call %[bpf_ktime_get_ns];"
+	"if r0 == 0 goto 1f;"
+	/* conjure scalar at fp-8 */
+	"r0 = 42;"
+	"*(u64*)(r10 - 8) = r0;"
+	"goto 2f;"
+"1:"
+	/* conjure STACK_MISC at fp-8 */
+	"call %[bpf_ktime_get_ns];"
+	"*(u64*)(r10 - 8) = r0;"
+	"*(u32*)(r10 - 4) = r0;"
+"2:"
+	/* read fp-8, should not be considered safe on second visit */
+	"r1 = *(u64*)(r10 - 8);"
+	/* use r1 in precise context */
+	"if r1 == 42 goto +0;"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* stacksafe(): check if STACK_MISC in old state is considered
+ * equivalent to stack spill of a scalar in cur state.
+ */
+SEC("socket")
+__success  __log_level(2)
+__msg("8: (79) r0 = *(u64 *)(r10 -8)")
+__msg("8: safe")
+__msg("processed 11 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void old_stack_misc_vs_cur_scalar(void)
+{
+	asm volatile(
+	/* get a random value for branching */
+	"call %[bpf_ktime_get_ns];"
+	"if r0 == 0 goto 1f;"
+	/* conjure STACK_{MISC,INVALID} at fp-8 */
+	"call %[bpf_ktime_get_ns];"
+	"*(u16*)(r10 - 8) = r0;"
+	"*(u16*)(r10 - 4) = r0;"
+	"goto 2f;"
+"1:"
+	/* conjure scalar at fp-8 */
+	"r0 = 42;"
+	"*(u64*)(r10 - 8) = r0;"
+"2:"
+	/* read fp-8, should be considered safe on second visit */
+	"r0 = *(u64*)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+/* stacksafe(): check that STACK_MISC in old state is not considered
+ * equivalent to stack spill of a non-scalar in cur state.
+ */
+SEC("socket")
+__success  __log_level(2)
+/* verifier should process exit instructions twice:
+ * - once for path entry - label 2;
+ * - once for path entry - label 1 - label 2.
+ */
+__msg("8: (79) r1 = *(u64 *)(r10 -8)")
+__msg("9: (95) exit")
+__msg("from 2 to 7")
+__msg("8: safe")
+__msg("processed 11 insns")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void old_stack_misc_vs_cur_ctx_ptr(void)
+{
+	asm volatile(
+	/* remember context pointer in r9 */
+	"r9 = r1;"
+	/* get a random value for branching */
+	"call %[bpf_ktime_get_ns];"
+	"if r0 == 0 goto 1f;"
+	/* conjure STACK_MISC at fp-8 */
+	"call %[bpf_ktime_get_ns];"
+	"*(u64*)(r10 - 8) = r0;"
+	"*(u32*)(r10 - 4) = r0;"
+	"goto 2f;"
+"1:"
+	/* conjure context pointer in fp-8 */
+	"*(u64*)(r10 - 8) = r9;"
+"2:"
+	/* read fp-8, should not be considered safe on second visit */
+	"r1 = *(u64*)(r10 - 8);"
+	"exit;"
+	:
+	: __imm(bpf_ktime_get_ns)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("stack_noperfmon: reject read of invalid slots")
+__success
+__caps_unpriv(CAP_BPF)
+__failure_unpriv __msg_unpriv("invalid read from stack off -8+1 size 8")
+__naked void stack_noperfmon_reject_invalid_read(void)
+{
+	asm volatile ("					\
+	r2 = 1;						\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u8 *)(r6 + 0) = r2;				\
+	r2 = *(u64 *)(r6 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("stack_noperfmon: narrow spill onto 64-bit scalar spilled slots")
+__success
+__caps_unpriv(CAP_BPF)
+__success_unpriv
+__naked void stack_noperfmon_spill_32bit_onto_64bit_slot(void)
+{
+	asm volatile("					\
+	r0 = 0;						\
+	*(u64 *)(r10 - 8) = r0;				\
+	*(u32 *)(r10 - 8) = r0;				\
+	exit;						\
+"	:
+	:
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_spin_lock.c b/tools/testing/selftests/bpf/progs/verifier_spin_lock.c
new file mode 100644
index 000000000000..d9d7b05cf6d2
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_spin_lock.c
@@ -0,0 +1,559 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/spin_lock.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct val {
+	int cnt;
+	struct bpf_spin_lock l;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct val);
+} map_spin_lock SEC(".maps");
+
+SEC("cgroup/skb")
+__description("spin_lock: test1 success")
+__success __failure_unpriv __msg_unpriv("")
+__retval(0)
+__naked void spin_lock_test1_success(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r6 + 0);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test2 direct ld/st")
+__failure __msg("cannot be accessed directly")
+__failure_unpriv __msg_unpriv("")
+__naked void lock_test2_direct_ld_st(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r1 + 0);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test3 direct ld/st")
+__failure __msg("cannot be accessed directly")
+__failure_unpriv __msg_unpriv("")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void lock_test3_direct_ld_st(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r6 + 1);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test4 direct ld/st")
+__failure __msg("cannot be accessed directly")
+__failure_unpriv __msg_unpriv("")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void lock_test4_direct_ld_st(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u16*)(r6 + 3);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test5 call within a locked region")
+__failure __msg("calls are not allowed")
+__failure_unpriv __msg_unpriv("")
+__naked void call_within_a_locked_region(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r6;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32),
+	  __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test6 missing unlock")
+__failure __msg("BPF_EXIT instruction in main prog cannot be used inside bpf_spin_lock-ed region")
+__failure_unpriv __msg_unpriv("")
+__naked void spin_lock_test6_missing_unlock(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r6 + 0);				\
+	if r0 != 0 goto l1_%=;				\
+	call %[bpf_spin_unlock];			\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test7 unlock without lock")
+__failure __msg("without taking a lock")
+__failure_unpriv __msg_unpriv("")
+__naked void lock_test7_unlock_without_lock(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	if r1 != 0 goto l1_%=;				\
+	call %[bpf_spin_lock];				\
+l1_%=:	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r6 + 0);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test8 double lock")
+__failure __msg("calls are not allowed")
+__failure_unpriv __msg_unpriv("")
+__naked void spin_lock_test8_double_lock(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r6;					\
+	r1 += 4;					\
+	r0 = *(u32*)(r6 + 0);				\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test9 different lock")
+__failure __msg("unlock of different lock")
+__failure_unpriv __msg_unpriv("")
+__naked void spin_lock_test9_different_lock(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r7 = r0;					\
+	r1 = r6;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r1 = r7;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("spin_lock: test10 lock in subprog without unlock")
+__success
+__failure_unpriv __msg_unpriv("")
+__naked void lock_in_subprog_without_unlock(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r6 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call lock_in_subprog_without_unlock__1;		\
+	r1 = r6;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+static __naked __noinline __attribute__((used))
+void lock_in_subprog_without_unlock__1(void)
+{
+	asm volatile ("					\
+	call %[bpf_spin_lock];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_spin_lock)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("spin_lock: test11 ld_abs under lock")
+__failure __msg("inside bpf_spin_lock")
+__naked void test11_ld_abs_under_lock(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r7 = r0;					\
+	r1 = r0;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r0 = *(u8*)skb[0];				\
+	r1 = r7;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("spin_lock: regsafe compare reg->id for map value")
+__failure __msg("bpf_spin_unlock of different lock")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void reg_id_for_map_value(void)
+{
+	asm volatile ("					\
+	r6 = r1;					\
+	r6 = *(u32*)(r6 + %[__sk_buff_mark]);		\
+	r1 = %[map_spin_lock] ll;			\
+	r9 = r1;					\
+	r2 = 0;						\
+	*(u32*)(r10 - 4) = r2;				\
+	r2 = r10;					\
+	r2 += -4;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r7 = r0;					\
+	r1 = r9;					\
+	r2 = r10;					\
+	r2 += -4;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l1_%=;				\
+	exit;						\
+l1_%=:	r8 = r0;					\
+	r1 = r7;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	if r6 == 0 goto l2_%=;				\
+	goto l3_%=;					\
+l2_%=:	r7 = r8;					\
+l3_%=:	r1 = r7;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+/* Make sure that regsafe() compares ids for spin lock records using
+ * check_ids():
+ *  1: r9 = map_lookup_elem(...)  ; r9.id == 1
+ *  2: r8 = map_lookup_elem(...)  ; r8.id == 2
+ *  3: r7 = ktime_get_ns()
+ *  4: r6 = ktime_get_ns()
+ *  5: if r6 > r7 goto <9>
+ *  6: spin_lock(r8)
+ *  7: r9 = r8
+ *  8: goto <10>
+ *  9: spin_lock(r9)
+ * 10: spin_unlock(r9)             ; r9.id == 1 || r9.id == 2 and lock is active,
+ *                                 ; second visit to (10) should be considered safe
+ *                                 ; if check_ids() is used.
+ * 11: exit(0)
+ */
+
+SEC("cgroup/skb")
+__description("spin_lock: regsafe() check_ids() similar id mappings")
+__success __msg("29: safe")
+__failure_unpriv __msg_unpriv("")
+__log_level(2) __retval(0) __flag(BPF_F_TEST_STATE_FREQ)
+__naked void check_ids_similar_id_mappings(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u32*)(r10 - 4) = r1;				\
+	/* r9 = map_lookup_elem(...) */			\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r9 = r0;					\
+	/* r8 = map_lookup_elem(...) */			\
+	r2 = r10;					\
+	r2 += -4;					\
+	r1 = %[map_spin_lock] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l1_%=;				\
+	r8 = r0;					\
+	/* r7 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r7 = r0;					\
+	/* r6 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r6 = r0;					\
+	/* if r6 > r7 goto +5      ; no new information about the state is derived from\
+	 *                         ; this check, thus produced verifier states differ\
+	 *                         ; only in 'insn_idx'	\
+	 * spin_lock(r8)				\
+	 * r9 = r8					\
+	 * goto unlock					\
+	 */						\
+	if r6 > r7 goto l2_%=;				\
+	r1 = r8;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+	r9 = r8;					\
+	goto l3_%=;					\
+l2_%=:	/* spin_lock(r9) */				\
+	r1 = r9;					\
+	r1 += 4;					\
+	call %[bpf_spin_lock];				\
+l3_%=:	/* spin_unlock(r9) */				\
+	r1 = r9;					\
+	r1 += 4;					\
+	call %[bpf_spin_unlock];			\
+l0_%=:	/* exit(0) */					\
+	r0 = 0;						\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm(bpf_spin_lock),
+	  __imm(bpf_spin_unlock),
+	  __imm_addr(map_spin_lock)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("spin_lock: loop within a locked region")
+__success __failure_unpriv __msg_unpriv("")
+__retval(0)
+int bpf_loop_inside_locked_region(void)
+{
+	const int zero = 0;
+	struct val *val;
+	int i, j = 0;
+
+	val = bpf_map_lookup_elem(&map_spin_lock, &zero);
+	if (!val)
+		return -1;
+
+	bpf_spin_lock(&val->l);
+	bpf_for(i, 0, 10) {
+		j++;
+		/* Silence "unused variable" warnings. */
+		if (j == 10)
+			break;
+	}
+	bpf_spin_unlock(&val->l);
+
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_stack_ptr.c b/tools/testing/selftests/bpf/progs/verifier_stack_ptr.c
new file mode 100644
index 000000000000..24aabc6083fd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_stack_ptr.c
@@ -0,0 +1,536 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/stack_ptr.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <limits.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+SEC("socket")
+__description("PTR_TO_STACK store/load")
+__success __success_unpriv __retval(0xfaceb00c)
+__naked void ptr_to_stack_store_load(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -10;					\
+	r0 = 0xfaceb00c;				\
+	*(u64*)(r1 + 2) = r0;				\
+	r0 = *(u64*)(r1 + 2);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK store/load - bad alignment on off")
+__failure __msg("misaligned stack access off 0+-8+2 size 8")
+__failure_unpriv
+__naked void load_bad_alignment_on_off(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -8;					\
+	r0 = 0xfaceb00c;				\
+	*(u64*)(r1 + 2) = r0;				\
+	r0 = *(u64*)(r1 + 2);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK store/load - bad alignment on reg")
+__failure __msg("misaligned stack access off 0+-10+8 size 8")
+__failure_unpriv
+__naked void load_bad_alignment_on_reg(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -10;					\
+	r0 = 0xfaceb00c;				\
+	*(u64*)(r1 + 8) = r0;				\
+	r0 = *(u64*)(r1 + 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK store/load - out of bounds low")
+__failure __msg("invalid write to stack R1 off=-79992 size=8")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void load_out_of_bounds_low(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -80000;					\
+	r0 = 0xfaceb00c;				\
+	*(u64*)(r1 + 8) = r0;				\
+	r0 = *(u64*)(r1 + 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK store/load - out of bounds high")
+__failure __msg("invalid write to stack R1 off=0 size=8")
+__failure_unpriv
+__naked void load_out_of_bounds_high(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -8;					\
+	r0 = 0xfaceb00c;				\
+	*(u64*)(r1 + 8) = r0;				\
+	r0 = *(u64*)(r1 + 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 1")
+__success __success_unpriv __retval(42)
+__naked void to_stack_check_high_1(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -1;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 2")
+__success __success_unpriv __retval(42)
+__naked void to_stack_check_high_2(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r0 = 42;					\
+	*(u8*)(r1 - 1) = r0;				\
+	r0 = *(u8*)(r1 - 1);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 3")
+__success __failure_unpriv
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__retval(42)
+__naked void to_stack_check_high_3(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += 0;					\
+	r0 = 42;					\
+	*(u8*)(r1 - 1) = r0;				\
+	r0 = *(u8*)(r1 - 1);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 4")
+__failure __msg("invalid write to stack R1 off=0 size=1")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_high_4(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += 0;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 5")
+__failure __msg("invalid write to stack R1")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_high_5(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, (1 << 29) - 1)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 6")
+__failure __msg("invalid write to stack")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_high_6(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1 + %[shrt_max]) = r0;			\
+	r0 = *(u8*)(r1 + %[shrt_max]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, (1 << 29) - 1),
+	  __imm_const(shrt_max, SHRT_MAX)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check high 7")
+__failure __msg("fp pointer offset")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_high_7(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1 + %[shrt_max]) = r0;			\
+	r0 = *(u8*)(r1 + %[shrt_max]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, (1 << 29) - 1),
+	  __imm_const(shrt_max, SHRT_MAX)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 1")
+__success __success_unpriv __retval(42)
+__naked void to_stack_check_low_1(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -512;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 2")
+__success __failure_unpriv
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__retval(42)
+__naked void to_stack_check_low_2(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -513;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 1) = r0;				\
+	r0 = *(u8*)(r1 + 1);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 3")
+__failure __msg("invalid write to stack R1 off=-513 size=1")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_low_3(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -513;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 4")
+__failure __msg("math between fp pointer")
+__failure_unpriv
+__naked void to_stack_check_low_4(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[int_min];				\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	:
+	: __imm_const(int_min, INT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 5")
+__failure __msg("invalid write to stack")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_low_5(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, -((1 << 29) - 1))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 6")
+__failure __msg("invalid write to stack")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_low_6(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1  %[shrt_min]) = r0;			\
+	r0 = *(u8*)(r1  %[shrt_min]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, -((1 << 29) - 1)),
+	  __imm_const(shrt_min, SHRT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK check low 7")
+__failure __msg("fp pointer offset")
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__naked void to_stack_check_low_7(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += %[__imm_0];				\
+	r1 += %[__imm_0];				\
+	r0 = 42;					\
+	*(u8*)(r1  %[shrt_min]) = r0;			\
+	r0 = *(u8*)(r1  %[shrt_min]);			\
+	exit;						\
+"	:
+	: __imm_const(__imm_0, -((1 << 29) - 1)),
+	  __imm_const(shrt_min, SHRT_MIN)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK mixed reg/k, 1")
+__success __success_unpriv __retval(42)
+__naked void stack_mixed_reg_k_1(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -3;					\
+	r2 = -3;					\
+	r1 += r2;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK mixed reg/k, 2")
+__success __success_unpriv __retval(42)
+__naked void stack_mixed_reg_k_2(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	r0 = 0;						\
+	*(u64*)(r10 - 16) = r0;				\
+	r1 = r10;					\
+	r1 += -3;					\
+	r2 = -3;					\
+	r1 += r2;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r5 = r10;					\
+	r0 = *(u8*)(r5 - 6);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK mixed reg/k, 3")
+__success __success_unpriv __retval(-3)
+__naked void stack_mixed_reg_k_3(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -3;					\
+	r2 = -3;					\
+	r1 += r2;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK reg")
+__success __success_unpriv __retval(42)
+__naked void ptr_to_stack_reg(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r2 = -3;					\
+	r1 += r2;					\
+	r0 = 42;					\
+	*(u8*)(r1 + 0) = r0;				\
+	r0 = *(u8*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("stack pointer arithmetic")
+__success __success_unpriv __retval(0)
+__naked void stack_pointer_arithmetic(void)
+{
+	asm volatile ("					\
+	r1 = 4;						\
+	goto l0_%=;					\
+l0_%=:	r7 = r10;					\
+	r7 += -10;					\
+	r7 += -10;					\
+	r2 = r7;					\
+	r2 += r1;					\
+	r0 = 0;						\
+	*(u32*)(r2 + 4) = r0;				\
+	r2 = r7;					\
+	r2 += 8;					\
+	r0 = 0;						\
+	*(u32*)(r2 + 4) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("store PTR_TO_STACK in R10 to array map using BPF_B")
+__success __retval(42)
+__naked void array_map_using_bpf_b(void)
+{
+	asm volatile ("					\
+	/* Load pointer to map. */			\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	r0 = 2;						\
+	exit;						\
+l0_%=:	r1 = r0;					\
+	/* Copy R10 to R9. */				\
+	r9 = r10;					\
+	/* Pollute other registers with unaligned values. */\
+	r2 = -1;					\
+	r3 = -1;					\
+	r4 = -1;					\
+	r5 = -1;					\
+	r6 = -1;					\
+	r7 = -1;					\
+	r8 = -1;					\
+	/* Store both R9 and R10 with BPF_B and read back. */\
+	*(u8*)(r1 + 0) = r10;				\
+	r2 = *(u8*)(r1 + 0);				\
+	*(u8*)(r1 + 0) = r9;				\
+	r3 = *(u8*)(r1 + 0);				\
+	/* Should read back as same value. */		\
+	if r2 == r3 goto l1_%=;				\
+	r0 = 1;						\
+	exit;						\
+l1_%=:	r0 = 42;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK stack size > 512")
+__failure __msg("invalid write to stack R1 off=-520 size=8")
+__naked void stack_check_size_gt_512(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -520;					\
+	r0 = 42;					\
+	*(u64*)(r1 + 0) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+#ifdef __BPF_FEATURE_MAY_GOTO
+SEC("socket")
+__description("PTR_TO_STACK stack size 512 with may_goto with jit")
+__load_if_JITed()
+__success __retval(42)
+__naked void stack_check_size_512_with_may_goto_jit(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -512;					\
+	r0 = 42;					\
+	*(u32*)(r1 + 0) = r0;				\
+	may_goto l0_%=;					\
+	r2 = 100;					\
+	l0_%=:						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("PTR_TO_STACK stack size 512 with may_goto without jit")
+__load_if_no_JITed()
+__failure __msg("stack size 520(extra 8) is too large")
+__naked void stack_check_size_512_with_may_goto(void)
+{
+	asm volatile ("					\
+	r1 = r10;					\
+	r1 += -512;					\
+	r0 = 42;					\
+	*(u32*)(r1 + 0) = r0;				\
+	may_goto l0_%=;					\
+	r2 = 100;					\
+	l0_%=:						\
+	exit;						\
+"	::: __clobber_all);
+}
+#endif
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_store_release.c b/tools/testing/selftests/bpf/progs/verifier_store_release.c
new file mode 100644
index 000000000000..72f1eb006074
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_store_release.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Google LLC. */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+#ifdef CAN_USE_LOAD_ACQ_STORE_REL
+
+SEC("socket")
+__description("store-release, 8-bit")
+__success __success_unpriv __retval(0)
+__naked void store_release_8(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0x12;"
+	".8byte %[store_release_insn];" // store_release((u8 *)(r10 - 1), w1);
+	"w2 = *(u8 *)(r10 - 1);"
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -1))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release, 16-bit")
+__success __success_unpriv __retval(0)
+__naked void store_release_16(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0x1234;"
+	".8byte %[store_release_insn];" // store_release((u16 *)(r10 - 2), w1);
+	"w2 = *(u16 *)(r10 - 2);"
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_H, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -2))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release, 32-bit")
+__success __success_unpriv __retval(0)
+__naked void store_release_32(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"w1 = 0x12345678;"
+	".8byte %[store_release_insn];" // store_release((u32 *)(r10 - 4), w1);
+	"w2 = *(u32 *)(r10 - 4);"
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_W, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -4))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release, 64-bit")
+__success __success_unpriv __retval(0)
+__naked void store_release_64(void)
+{
+	asm volatile (
+	"r0 = 0;"
+	"r1 = 0x1234567890abcdef ll;"
+	".8byte %[store_release_insn];" // store_release((u64 *)(r10 - 8), r1);
+	"r2 = *(u64 *)(r10 - 8);"
+	"if r2 == r1 goto 1f;"
+	"r0 = 1;"
+"1:"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -8))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release with uninitialized src_reg")
+__failure __failure_unpriv __msg("R2 !read_ok")
+__naked void store_release_with_uninitialized_src_reg(void)
+{
+	asm volatile (
+	".8byte %[store_release_insn];" // store_release((u64 *)(r10 - 8), r2);
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_10, BPF_REG_2, -8))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release with uninitialized dst_reg")
+__failure __failure_unpriv __msg("R2 !read_ok")
+__naked void store_release_with_uninitialized_dst_reg(void)
+{
+	asm volatile (
+	"r1 = 0;"
+	".8byte %[store_release_insn];" // store_release((u64 *)(r2 - 8), r1);
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_2, BPF_REG_1, -8))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release with non-pointer dst_reg")
+__failure __failure_unpriv __msg("R1 invalid mem access 'scalar'")
+__naked void store_release_with_non_pointer_dst_reg(void)
+{
+	asm volatile (
+	"r1 = 0;"
+	".8byte %[store_release_insn];" // store_release((u64 *)(r1 + 0), r1);
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_1, BPF_REG_1, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("misaligned store-release")
+__failure __failure_unpriv __msg("misaligned stack access off")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void store_release_misaligned(void)
+{
+	asm volatile (
+	"w0 = 0;"
+	".8byte %[store_release_insn];" // store_release((u32 *)(r10 - 5), w0);
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_W, BPF_STORE_REL, BPF_REG_10, BPF_REG_0, -5))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release to ctx pointer")
+__failure __failure_unpriv __msg("BPF_ATOMIC stores into R1 ctx is not allowed")
+__naked void store_release_to_ctx_pointer(void)
+{
+	asm volatile (
+	"w0 = 0;"
+	// store_release((u8 *)(r1 + offsetof(struct __sk_buff, cb[0])), w0);
+	".8byte %[store_release_insn];"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_STORE_REL, BPF_REG_1, BPF_REG_0,
+				   offsetof(struct __sk_buff, cb[0])))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("store-release to pkt pointer")
+__failure __msg("BPF_ATOMIC stores into R2 pkt is not allowed")
+__naked void store_release_to_pkt_pointer(void)
+{
+	asm volatile (
+	"w0 = 0;"
+	"r2 = *(u32 *)(r1 + %[xdp_md_data]);"
+	"r3 = *(u32 *)(r1 + %[xdp_md_data_end]);"
+	"r1 = r2;"
+	"r1 += 8;"
+	"if r1 >= r3 goto l0_%=;"
+	".8byte %[store_release_insn];" // store_release((u8 *)(r2 + 0), w0);
+"l0_%=:  r0 = 0;"
+	"exit;"
+	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end)),
+	  __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_STORE_REL, BPF_REG_2, BPF_REG_0, 0))
+	: __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("store-release to flow_keys pointer")
+__failure __msg("BPF_ATOMIC stores into R2 flow_keys is not allowed")
+__naked void store_release_to_flow_keys_pointer(void)
+{
+	asm volatile (
+	"w0 = 0;"
+	"r2 = *(u64 *)(r1 + %[__sk_buff_flow_keys]);"
+	".8byte %[store_release_insn];" // store_release((u8 *)(r2 + 0), w0);
+	"exit;"
+	:
+	: __imm_const(__sk_buff_flow_keys,
+		      offsetof(struct __sk_buff, flow_keys)),
+	  __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_STORE_REL, BPF_REG_2, BPF_REG_0, 0))
+	: __clobber_all);
+}
+
+SEC("sk_reuseport")
+__description("store-release to sock pointer")
+__failure __msg("R2 cannot write into sock")
+__naked void store_release_to_sock_pointer(void)
+{
+	asm volatile (
+	"w0 = 0;"
+	"r2 = *(u64 *)(r1 + %[sk_reuseport_md_sk]);"
+	".8byte %[store_release_insn];" // store_release((u8 *)(r2 + 0), w0);
+	"exit;"
+	:
+	: __imm_const(sk_reuseport_md_sk, offsetof(struct sk_reuseport_md, sk)),
+	  __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_B, BPF_STORE_REL, BPF_REG_2, BPF_REG_0, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release, leak pointer to stack")
+__success __success_unpriv __retval(0)
+__naked void store_release_leak_pointer_to_stack(void)
+{
+	asm volatile (
+	".8byte %[store_release_insn];" // store_release((u64 *)(r10 - 8), r1);
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_10, BPF_REG_1, -8))
+	: __clobber_all);
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("socket")
+__description("store-release, leak pointer to map")
+__success __retval(0)
+__failure_unpriv __msg_unpriv("R6 leaks addr into map")
+__naked void store_release_leak_pointer_to_map(void)
+{
+	asm volatile (
+	"r6 = r1;"
+	"r1 = %[map_hash_8b] ll;"
+	"r2 = 0;"
+	"*(u64 *)(r10 - 8) = r2;"
+	"r2 = r10;"
+	"r2 += -8;"
+	"call %[bpf_map_lookup_elem];"
+	"if r0 == 0 goto l0_%=;"
+	".8byte %[store_release_insn];" // store_release((u64 *)(r0 + 0), r6);
+"l0_%=:"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm_addr(map_hash_8b),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, BPF_REG_0, BPF_REG_6, 0))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("store-release with invalid register R15")
+__failure __failure_unpriv __msg("R15 is invalid")
+__naked void store_release_with_invalid_reg(void)
+{
+	asm volatile (
+	".8byte %[store_release_insn];" // store_release((u64 *)(r15 + 0), r1);
+	"exit;"
+	:
+	: __imm_insn(store_release_insn,
+		     BPF_ATOMIC_OP(BPF_DW, BPF_STORE_REL, 15 /* invalid reg */, BPF_REG_1, 0))
+	: __clobber_all);
+}
+
+#else /* CAN_USE_LOAD_ACQ_STORE_REL */
+
+SEC("socket")
+__description("Clang version < 18, ENABLE_ATOMICS_TESTS not defined, and/or JIT doesn't support store-release, use a dummy test")
+__success
+int dummy_test(void)
+{
+	return 0;
+}
+
+#endif /* CAN_USE_LOAD_ACQ_STORE_REL */
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c b/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c
new file mode 100644
index 000000000000..61886ed554de
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_subprog_precision.c
@@ -0,0 +1,849 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2023 Meta Platforms, Inc. and affiliates. */
+
+#include <errno.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include <../../../tools/include/linux/filter.h>
+
+int vals[] SEC(".data.vals") = {1, 2, 3, 4};
+
+__naked __noinline __used
+static unsigned long identity_subprog()
+{
+	/* the simplest *static* 64-bit identity function */
+	asm volatile (
+		"r0 = r1;"
+		"exit;"
+	);
+}
+
+__noinline __used
+unsigned long global_identity_subprog(__u64 x)
+{
+	/* the simplest *global* 64-bit identity function */
+	return x;
+}
+
+__naked __noinline __used
+static unsigned long callback_subprog()
+{
+	/* the simplest callback function */
+	asm volatile (
+		"r0 = 0;"
+		"exit;"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("7: (0f) r1 += r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 6: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (27) r0 *= 4")
+__msg("mark_precise: frame0: regs=r0 stack= before 11: (95) exit")
+__msg("mark_precise: frame1: regs=r0 stack= before 10: (bf) r0 = r1")
+__msg("mark_precise: frame1: regs=r1 stack= before 4: (85) call pc+5")
+__msg("mark_precise: frame0: regs=r1 stack= before 3: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 3")
+__naked int subprog_result_precise(void)
+{
+	asm volatile (
+		"r6 = 3;"
+		/* pass r6 through r1 into subprog to get it back as r0;
+		 * this whole chain will have to be marked as precise later
+		 */
+		"r1 = r6;"
+		"call identity_subprog;"
+		/* now use subprog's returned value (which is a
+		 * r6 -> r1 -> r0 chain), as index into vals array, forcing
+		 * all of that to be known precisely
+		 */
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		/* here r0->r1->r6 chain is forced to be precise and has to be
+		 * propagated back to the beginning, including through the
+		 * subprog call
+		 */
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+__naked __noinline __used
+static unsigned long fp_leaking_subprog()
+{
+	asm volatile (
+		".8byte %[r0_eq_r10_cast_s8];"
+		"exit;"
+		:: __imm_insn(r0_eq_r10_cast_s8, BPF_MOVSX64_REG(BPF_REG_0, BPF_REG_10, 8))
+	);
+}
+
+__naked __noinline __used
+static unsigned long sneaky_fp_leaking_subprog()
+{
+	asm volatile (
+		"r1 = r10;"
+		".8byte %[r0_eq_r1_cast_s8];"
+		"exit;"
+		:: __imm_insn(r0_eq_r1_cast_s8, BPF_MOVSX64_REG(BPF_REG_0, BPF_REG_1, 8))
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("6: (0f) r1 += r0")
+__msg("mark_precise: frame0: last_idx 6 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (27) r0 *= 4")
+__msg("mark_precise: frame0: regs=r0 stack= before 3: (57) r0 &= 3")
+__msg("mark_precise: frame0: regs=r0 stack= before 10: (95) exit")
+__msg("mark_precise: frame1: regs=r0 stack= before 9: (bf) r0 = (s8)r10")
+__msg("7: R0=scalar")
+__naked int fp_precise_subprog_result(void)
+{
+	asm volatile (
+		"call fp_leaking_subprog;"
+		/* use subprog's returned value (which is derived from r10=fp
+		 * register), as index into vals array, forcing all of that to
+		 * be known precisely
+		 */
+		"r0 &= 3;"
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		/* force precision marking */
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("6: (0f) r1 += r0")
+__msg("mark_precise: frame0: last_idx 6 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (27) r0 *= 4")
+__msg("mark_precise: frame0: regs=r0 stack= before 3: (57) r0 &= 3")
+__msg("mark_precise: frame0: regs=r0 stack= before 11: (95) exit")
+__msg("mark_precise: frame1: regs=r0 stack= before 10: (bf) r0 = (s8)r1")
+/* here r1 is marked precise, even though it's fp register, but that's fine
+ * because by the time we get out of subprogram it has to be derived from r10
+ * anyways, at which point we'll break precision chain
+ */
+__msg("mark_precise: frame1: regs=r1 stack= before 9: (bf) r1 = r10")
+__msg("7: R0=scalar")
+__naked int sneaky_fp_precise_subprog_result(void)
+{
+	asm volatile (
+		"call sneaky_fp_leaking_subprog;"
+		/* use subprog's returned value (which is derived from r10=fp
+		 * register), as index into vals array, forcing all of that to
+		 * be known precisely
+		 */
+		"r0 &= 3;"
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		/* force precision marking */
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("9: (0f) r1 += r0")
+__msg("mark_precise: frame0: last_idx 9 first_idx 0")
+__msg("mark_precise: frame0: regs=r0 stack= before 8: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r0 stack= before 7: (27) r0 *= 4")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (a5) if r0 < 0x4 goto pc+1")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (85) call pc+7")
+__naked int global_subprog_result_precise(void)
+{
+	asm volatile (
+		"r6 = 3;"
+		/* pass r6 through r1 into subprog to get it back as r0;
+		 * given global_identity_subprog is global, precision won't
+		 * propagate all the way back to r6
+		 */
+		"r1 = r6;"
+		"call global_identity_subprog;"
+		/* now use subprog's returned value (which is unknown now, so
+		 * we need to clamp it), as index into vals array, forcing r0
+		 * to be marked precise (with no effect on r6, though)
+		 */
+		"if r0 < %[vals_arr_sz] goto 1f;"
+		"r0 = %[vals_arr_sz] - 1;"
+	"1:"
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		/* here r0 is forced to be precise and has to be
+		 * propagated back to the global subprog call, but it
+		 * shouldn't go all the way to mark r6 as precise
+		 */
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals),
+		  __imm_const(vals_arr_sz, ARRAY_SIZE(vals))
+		: __clobber_common, "r6"
+	);
+}
+
+__naked __noinline __used
+static unsigned long loop_callback_bad()
+{
+	/* bpf_loop() callback that can return values outside of [0, 1] range */
+	asm volatile (
+		"call %[bpf_get_prandom_u32];"
+		"if r0 s> 1000 goto 1f;"
+		"r0 = 0;"
+	"1:"
+		"goto +0;" /* checkpoint */
+		/* bpf_loop() expects [0, 1] values, so branch above skipping
+		 * r0 = 0; should lead to a failure, but if exit instruction
+		 * doesn't enforce r0's precision, this callback will be
+		 * successfully verified
+		 */
+		"exit;"
+		:
+		: __imm(bpf_get_prandom_u32)
+		: __clobber_common
+	);
+}
+
+SEC("?raw_tp")
+__failure __log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+/* check that fallthrough code path marks r0 as precise */
+__msg("mark_precise: frame1: regs=r0 stack= before 11: (b7) r0 = 0")
+/* check that we have branch code path doing its own validation */
+__msg("from 10 to 12: frame1: R0=scalar(smin=umin=1001")
+/* check that branch code path marks r0 as precise, before failing */
+__msg("mark_precise: frame1: regs=r0 stack= before 9: (85) call bpf_get_prandom_u32#7")
+__msg("At callback return the register R0 has smin=1001 should have been in [0, 1]")
+__naked int callback_precise_return_fail(void)
+{
+	asm volatile (
+		"r1 = 1;"			/* nr_loops */
+		"r2 = %[loop_callback_bad];"	/* callback_fn */
+		"r3 = 0;"			/* callback_ctx */
+		"r4 = 0;"			/* flags */
+		"call %[bpf_loop];"
+
+		"r0 = 0;"
+		"exit;"
+		:
+		: __imm_ptr(loop_callback_bad),
+		  __imm(bpf_loop)
+		: __clobber_common
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+/* First simulated path does not include callback body,
+ * r1 and r4 are always precise for bpf_loop() calls.
+ */
+__msg("9: (85) call bpf_loop#181")
+__msg("mark_precise: frame0: last_idx 9 first_idx 9 subseq_idx -1")
+__msg("mark_precise: frame0: parent state regs=r4 stack=:")
+__msg("mark_precise: frame0: last_idx 8 first_idx 0 subseq_idx 9")
+__msg("mark_precise: frame0: regs=r4 stack= before 8: (b7) r4 = 0")
+__msg("mark_precise: frame0: last_idx 9 first_idx 9 subseq_idx -1")
+__msg("mark_precise: frame0: parent state regs=r1 stack=:")
+__msg("mark_precise: frame0: last_idx 8 first_idx 0 subseq_idx 9")
+__msg("mark_precise: frame0: regs=r1 stack= before 8: (b7) r4 = 0")
+__msg("mark_precise: frame0: regs=r1 stack= before 7: (b7) r3 = 0")
+__msg("mark_precise: frame0: regs=r1 stack= before 6: (bf) r2 = r8")
+__msg("mark_precise: frame0: regs=r1 stack= before 5: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 4: (b7) r6 = 3")
+/* r6 precision propagation */
+__msg("14: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 14 first_idx 9")
+__msg("mark_precise: frame0: regs=r6 stack= before 13: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 12: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 11: (25) if r6 > 0x3 goto pc+4")
+__msg("mark_precise: frame0: regs=r0,r6 stack= before 10: (bf) r6 = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 9: (85) call bpf_loop")
+/* State entering callback body popped from states stack */
+__msg("from 9 to 17: frame1:")
+__msg("17: frame1: R1=scalar() R2=0 R10=fp0 cb")
+__msg("17: (b7) r0 = 0")
+__msg("18: (95) exit")
+__msg("returning from callee:")
+__msg("to caller at 9:")
+__msg("frame 0: propagating r1,r4")
+__msg("mark_precise: frame0: last_idx 9 first_idx 9 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r1,r4 stack= before 18: (95) exit")
+__msg("from 18 to 9: safe")
+__naked int callback_result_precise(void)
+{
+	asm volatile (
+		"r6 = 3;"
+
+		/* call subprog and use result; r0 shouldn't propagate back to
+		 * callback_subprog
+		 */
+		"r1 = r6;"			/* nr_loops */
+		"r2 = %[callback_subprog];"	/* callback_fn */
+		"r3 = 0;"			/* callback_ctx */
+		"r4 = 0;"			/* flags */
+		"call %[bpf_loop];"
+
+		"r6 = r0;"
+		"if r6 > 3 goto 1f;"
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the bpf_loop() call, but not beyond
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+	"1:"
+		"exit;"
+		:
+		: __imm_ptr(vals),
+		  __imm_ptr(callback_subprog),
+		  __imm(bpf_loop)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("7: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 7 first_idx 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 6: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 5: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 11: (95) exit")
+__msg("mark_precise: frame1: regs= stack= before 10: (bf) r0 = r1")
+__msg("mark_precise: frame1: regs= stack= before 4: (85) call pc+5")
+__msg("mark_precise: frame0: regs=r6 stack= before 3: (b7) r1 = 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 3")
+__naked int parent_callee_saved_reg_precise(void)
+{
+	asm volatile (
+		"r6 = 3;"
+
+		/* call subprog and ignore result; we need this call only to
+		 * complicate jump history
+		 */
+		"r1 = 0;"
+		"call identity_subprog;"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) subprog call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("7: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 7 first_idx 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 6: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 5: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 4: (85) call pc+5")
+__msg("mark_precise: frame0: regs=r6 stack= before 3: (b7) r1 = 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 3")
+__naked int parent_callee_saved_reg_precise_global(void)
+{
+	asm volatile (
+		"r6 = 3;"
+
+		/* call subprog and ignore result; we need this call only to
+		 * complicate jump history
+		 */
+		"r1 = 0;"
+		"call global_identity_subprog;"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) subprog call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+/* First simulated path does not include callback body */
+__msg("12: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 12 first_idx 9")
+__msg("mark_precise: frame0: regs=r6 stack= before 11: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 10: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 9: (85) call bpf_loop")
+__msg("mark_precise: frame0: parent state regs=r6 stack=:")
+__msg("mark_precise: frame0: last_idx 8 first_idx 0 subseq_idx 9")
+__msg("mark_precise: frame0: regs=r6 stack= before 8: (b7) r4 = 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 7: (b7) r3 = 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 6: (bf) r2 = r8")
+__msg("mark_precise: frame0: regs=r6 stack= before 5: (b7) r1 = 1")
+__msg("mark_precise: frame0: regs=r6 stack= before 4: (b7) r6 = 3")
+/* State entering callback body popped from states stack */
+__msg("from 9 to 15: frame1:")
+__msg("15: frame1: R1=scalar() R2=0 R10=fp0 cb")
+__msg("15: (b7) r0 = 0")
+__msg("16: (95) exit")
+__msg("returning from callee:")
+__msg("to caller at 9:")
+/* r1, r4 are always precise for bpf_loop(),
+ * r6 was marked before backtracking to callback body.
+ */
+__msg("frame 0: propagating r1,r4,r6")
+__msg("mark_precise: frame0: last_idx 9 first_idx 9 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r1,r4,r6 stack= before 16: (95) exit")
+__msg("mark_precise: frame1: regs= stack= before 15: (b7) r0 = 0")
+__msg("mark_precise: frame1: regs= stack= before 9: (85) call bpf_loop")
+__msg("mark_precise: frame0: parent state regs= stack=:")
+__msg("from 16 to 9: safe")
+__naked int parent_callee_saved_reg_precise_with_callback(void)
+{
+	asm volatile (
+		"r6 = 3;"
+
+		/* call subprog and ignore result; we need this call only to
+		 * complicate jump history
+		 */
+		"r1 = 1;"			/* nr_loops */
+		"r2 = %[callback_subprog];"	/* callback_fn */
+		"r3 = 0;"			/* callback_ctx */
+		"r4 = 0;"			/* flags */
+		"call %[bpf_loop];"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) callback call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals),
+		  __imm_ptr(callback_subprog),
+		  __imm(bpf_loop)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("9: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 9 first_idx 6")
+__msg("mark_precise: frame0: regs=r6 stack= before 8: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 7: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 6: (79) r6 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: parent state regs= stack=-8:")
+__msg("mark_precise: frame0: last_idx 13 first_idx 0")
+__msg("mark_precise: frame0: regs= stack=-8 before 13: (95) exit")
+__msg("mark_precise: frame1: regs= stack= before 12: (bf) r0 = r1")
+__msg("mark_precise: frame1: regs= stack= before 5: (85) call pc+6")
+__msg("mark_precise: frame0: regs= stack=-8 before 4: (b7) r1 = 0")
+__msg("mark_precise: frame0: regs= stack=-8 before 3: (7b) *(u64 *)(r10 -8) = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 3")
+__naked int parent_stack_slot_precise(void)
+{
+	asm volatile (
+		/* spill reg */
+		"r6 = 3;"
+		"*(u64 *)(r10 - 8) = r6;"
+
+		/* call subprog and ignore result; we need this call only to
+		 * complicate jump history
+		 */
+		"r1 = 0;"
+		"call identity_subprog;"
+
+		/* restore reg from stack; in this case we'll be carrying
+		 * stack mask when going back into subprog through jump
+		 * history
+		 */
+		"r6 = *(u64 *)(r10 - 8);"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) subprog call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("9: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 9 first_idx 0")
+__msg("mark_precise: frame0: regs=r6 stack= before 8: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 7: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 6: (79) r6 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-8 before 5: (85) call pc+6")
+__msg("mark_precise: frame0: regs= stack=-8 before 4: (b7) r1 = 0")
+__msg("mark_precise: frame0: regs= stack=-8 before 3: (7b) *(u64 *)(r10 -8) = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 3")
+__naked int parent_stack_slot_precise_global(void)
+{
+	asm volatile (
+		/* spill reg */
+		"r6 = 3;"
+		"*(u64 *)(r10 - 8) = r6;"
+
+		/* call subprog and ignore result; we need this call only to
+		 * complicate jump history
+		 */
+		"r1 = 0;"
+		"call global_identity_subprog;"
+
+		/* restore reg from stack; in this case we'll be carrying
+		 * stack mask when going back into subprog through jump
+		 * history
+		 */
+		"r6 = *(u64 *)(r10 - 8);"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) subprog call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+/* First simulated path does not include callback body */
+__msg("14: (0f) r1 += r6")
+__msg("mark_precise: frame0: last_idx 14 first_idx 10")
+__msg("mark_precise: frame0: regs=r6 stack= before 13: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r6 stack= before 12: (27) r6 *= 4")
+__msg("mark_precise: frame0: regs=r6 stack= before 11: (79) r6 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: regs= stack=-8 before 10: (85) call bpf_loop")
+__msg("mark_precise: frame0: parent state regs= stack=-8:")
+__msg("mark_precise: frame0: last_idx 9 first_idx 0 subseq_idx 10")
+__msg("mark_precise: frame0: regs= stack=-8 before 9: (b7) r4 = 0")
+__msg("mark_precise: frame0: regs= stack=-8 before 8: (b7) r3 = 0")
+__msg("mark_precise: frame0: regs= stack=-8 before 7: (bf) r2 = r8")
+__msg("mark_precise: frame0: regs= stack=-8 before 6: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs= stack=-8 before 5: (7b) *(u64 *)(r10 -8) = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 4: (b7) r6 = 3")
+/* State entering callback body popped from states stack */
+__msg("from 10 to 17: frame1:")
+__msg("17: frame1: R1=scalar() R2=0 R10=fp0 cb")
+__msg("17: (b7) r0 = 0")
+__msg("18: (95) exit")
+__msg("returning from callee:")
+__msg("to caller at 10:")
+/* r1, r4 are always precise for bpf_loop(),
+ * fp-8 was marked before backtracking to callback body.
+ */
+__msg("frame 0: propagating r1,r4,fp-8")
+__msg("mark_precise: frame0: last_idx 10 first_idx 10 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r1,r4 stack=-8 before 18: (95) exit")
+__msg("mark_precise: frame1: regs= stack= before 17: (b7) r0 = 0")
+__msg("mark_precise: frame1: regs= stack= before 10: (85) call bpf_loop#181")
+__msg("mark_precise: frame0: parent state regs= stack=:")
+__msg("from 18 to 10: safe")
+__naked int parent_stack_slot_precise_with_callback(void)
+{
+	asm volatile (
+		/* spill reg */
+		"r6 = 3;"
+		"*(u64 *)(r10 - 8) = r6;"
+
+		/* ensure we have callback frame in jump history */
+		"r1 = r6;"			/* nr_loops */
+		"r2 = %[callback_subprog];"	/* callback_fn */
+		"r3 = 0;"			/* callback_ctx */
+		"r4 = 0;"			/* flags */
+		"call %[bpf_loop];"
+
+		/* restore reg from stack; in this case we'll be carrying
+		 * stack mask when going back into subprog through jump
+		 * history
+		 */
+		"r6 = *(u64 *)(r10 - 8);"
+
+		"r6 *= 4;"
+		"r1 = %[vals];"
+		/* here r6 is forced to be precise and has to be propagated
+		 * back to the beginning, handling (and ignoring) subprog call
+		 */
+		"r1 += r6;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals),
+		  __imm_ptr(callback_subprog),
+		  __imm(bpf_loop)
+		: __clobber_common, "r6"
+	);
+}
+
+__noinline __used
+static __u64 subprog_with_precise_arg(__u64 x)
+{
+	return vals[x]; /* x is forced to be precise */
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("8: (0f) r2 += r1")
+__msg("mark_precise: frame1: last_idx 8 first_idx 0")
+__msg("mark_precise: frame1: regs=r1 stack= before 6: (18) r2 = ")
+__msg("mark_precise: frame1: regs=r1 stack= before 5: (67) r1 <<= 2")
+__msg("mark_precise: frame1: regs=r1 stack= before 2: (85) call pc+2")
+__msg("mark_precise: frame0: regs=r1 stack= before 1: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 0: (b7) r6 = 3")
+__naked int subprog_arg_precise(void)
+{
+	asm volatile (
+		"r6 = 3;"
+		"r1 = r6;"
+		/* subprog_with_precise_arg expects its argument to be
+		 * precise, so r1->r6 will be marked precise from inside the
+		 * subprog
+		 */
+		"call subprog_with_precise_arg;"
+		"r0 += r6;"
+		"exit;"
+		:
+		:
+		: __clobber_common, "r6"
+	);
+}
+
+/* r1 is pointer to stack slot;
+ * r2 is a register to spill into that slot
+ * subprog also spills r2 into its own stack slot
+ */
+__naked __noinline __used
+static __u64 subprog_spill_reg_precise(void)
+{
+	asm volatile (
+		/* spill to parent stack */
+		"*(u64 *)(r1 + 0) = r2;"
+		/* spill to subprog stack (we use -16 offset to avoid
+		 * accidental confusion with parent's -8 stack slot in
+		 * verifier log output)
+		 */
+		"*(u64 *)(r10 - 16) = r2;"
+		/* use both spills as return result to propagete precision everywhere */
+		"r0 = *(u64 *)(r10 - 16);"
+		"r2 = *(u64 *)(r1 + 0);"
+		"r0 += r2;"
+		"exit;"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("10: (0f) r1 += r7")
+__msg("mark_precise: frame0: last_idx 10 first_idx 7 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r7 stack= before 9: (bf) r1 = r8")
+__msg("mark_precise: frame0: regs=r7 stack= before 8: (27) r7 *= 4")
+__msg("mark_precise: frame0: regs=r7 stack= before 7: (79) r7 = *(u64 *)(r10 -8)")
+__msg("mark_precise: frame0: parent state regs= stack=-8:  R0=2 R6=1 R8=map_value(map=.data.vals,ks=4,vs=16) R10=fp0 fp-8=P1")
+__msg("mark_precise: frame0: last_idx 18 first_idx 0 subseq_idx 7")
+__msg("mark_precise: frame0: regs= stack=-8 before 18: (95) exit")
+__msg("mark_precise: frame1: regs= stack= before 17: (0f) r0 += r2")
+__msg("mark_precise: frame1: regs= stack= before 16: (79) r2 = *(u64 *)(r1 +0)")
+__msg("mark_precise: frame1: regs= stack= before 15: (79) r0 = *(u64 *)(r10 -16)")
+__msg("mark_precise: frame1: regs= stack= before 14: (7b) *(u64 *)(r10 -16) = r2")
+__msg("mark_precise: frame1: regs= stack= before 13: (7b) *(u64 *)(r1 +0) = r2")
+__msg("mark_precise: frame1: regs=r2 stack= before 6: (85) call pc+6")
+__msg("mark_precise: frame0: regs=r2 stack= before 5: (bf) r2 = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 4: (07) r1 += -8")
+__msg("mark_precise: frame0: regs=r6 stack= before 3: (bf) r1 = r10")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 1")
+__naked int subprog_spill_into_parent_stack_slot_precise(void)
+{
+	asm volatile (
+		"r6 = 1;"
+
+		/* pass pointer to stack slot and r6 to subprog;
+		 * r6 will be marked precise and spilled into fp-8 slot, which
+		 * also should be marked precise
+		 */
+		"r1 = r10;"
+		"r1 += -8;"
+		"r2 = r6;"
+		"call subprog_spill_reg_precise;"
+
+		/* restore reg from stack; in this case we'll be carrying
+		 * stack mask when going back into subprog through jump
+		 * history
+		 */
+		"r7 = *(u64 *)(r10 - 8);"
+
+		"r7 *= 4;"
+		"r1 = %[vals];"
+		/* here r7 is forced to be precise and has to be propagated
+		 * back to the beginning, handling subprog call and logic
+		 */
+		"r1 += r7;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6", "r7"
+	);
+}
+
+SEC("?raw_tp")
+__success __log_level(2)
+__msg("17: (0f) r1 += r0")
+__msg("mark_precise: frame0: last_idx 17 first_idx 0 subseq_idx -1")
+__msg("mark_precise: frame0: regs=r0 stack= before 16: (bf) r1 = r7")
+__msg("mark_precise: frame0: regs=r0 stack= before 15: (27) r0 *= 4")
+__msg("mark_precise: frame0: regs=r0 stack= before 14: (79) r0 = *(u64 *)(r10 -16)")
+__msg("mark_precise: frame0: regs= stack=-16 before 13: (7b) *(u64 *)(r7 -8) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 12: (79) r0 = *(u64 *)(r8 +16)")
+__msg("mark_precise: frame0: regs= stack=-16 before 11: (7b) *(u64 *)(r8 +16) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 10: (79) r0 = *(u64 *)(r7 -8)")
+__msg("mark_precise: frame0: regs= stack=-16 before 9: (7b) *(u64 *)(r10 -16) = r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 8: (07) r8 += -32")
+__msg("mark_precise: frame0: regs=r0 stack= before 7: (bf) r8 = r10")
+__msg("mark_precise: frame0: regs=r0 stack= before 6: (07) r7 += -8")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r7 = r10")
+__msg("mark_precise: frame0: regs=r0 stack= before 21: (95) exit")
+__msg("mark_precise: frame1: regs=r0 stack= before 20: (bf) r0 = r1")
+__msg("mark_precise: frame1: regs=r1 stack= before 4: (85) call pc+15")
+__msg("mark_precise: frame0: regs=r1 stack= before 3: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r6 stack= before 2: (b7) r6 = 1")
+__naked int stack_slot_aliases_precision(void)
+{
+	asm volatile (
+		"r6 = 1;"
+		/* pass r6 through r1 into subprog to get it back as r0;
+		 * this whole chain will have to be marked as precise later
+		 */
+		"r1 = r6;"
+		"call identity_subprog;"
+		/* let's setup two registers that are aliased to r10 */
+		"r7 = r10;"
+		"r7 += -8;"			/* r7 = r10 - 8 */
+		"r8 = r10;"
+		"r8 += -32;"			/* r8 = r10 - 32 */
+		/* now spill subprog's return value (a r6 -> r1 -> r0 chain)
+		 * a few times through different stack pointer regs, making
+		 * sure to use r10, r7, and r8 both in LDX and STX insns, and
+		 * *importantly* also using a combination of const var_off and
+		 * insn->off to validate that we record final stack slot
+		 * correctly, instead of relying on just insn->off derivation,
+		 * which is only valid for r10-based stack offset
+		 */
+		"*(u64 *)(r10 - 16) = r0;"
+		"r0 = *(u64 *)(r7 - 8);"	/* r7 - 8 == r10 - 16 */
+		"*(u64 *)(r8 + 16) = r0;"	/* r8 + 16 = r10 - 16 */
+		"r0 = *(u64 *)(r8 + 16);"
+		"*(u64 *)(r7 - 8) = r0;"
+		"r0 = *(u64 *)(r10 - 16);"
+		/* get ready to use r0 as an index into array to force precision */
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		/* here r0->r1->r6 chain is forced to be precise and has to be
+		 * propagated back to the beginning, including through the
+		 * subprog call and all the stack spills and loads
+		 */
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common, "r6"
+	);
+}
+
+struct {
+        __uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+        __uint(max_entries, 1);
+        __type(key, __u32);
+        __type(value, __u32);
+} map_array SEC(".maps");
+
+__naked __noinline __used
+static unsigned long identity_tail_call(void)
+{
+	/* the simplest identity function involving a tail call */
+        asm volatile (
+		"r6 = r2;"
+		"r2 = %[map_array] ll;"
+		"r3 = 0;"
+		"call %[bpf_tail_call];"
+		"r0 = r6;"
+		"exit;"
+		:
+		: __imm(bpf_tail_call),
+		  __imm_addr(map_array)
+		: __clobber_all);
+}
+
+SEC("?raw_tp")
+__failure __log_level(2)
+__msg("13: (85) call bpf_tail_call#12")
+__msg("mark_precise: frame1: last_idx 13 first_idx 0 subseq_idx -1 ")
+__msg("returning from callee:")
+__msg("frame1: R0=scalar() R6=3 R10=fp0")
+__msg("to caller at 4:")
+__msg("R0=scalar() R6=map_value(map=.data.vals,ks=4,vs=16) R10=fp0")
+__msg("6: (0f) r1 += r0")
+__msg("mark_precise: frame0: regs=r0 stack= before 5: (bf) r1 = r6")
+__msg("mark_precise: frame0: regs=r0 stack= before 4: (27) r0 *= 4")
+__msg("mark_precise: frame0: parent state regs=r0 stack=:  R0=Pscalar() R6=map_value(map=.data.vals,ks=4,vs=16) R10=fp0")
+__msg("math between map_value pointer and register with unbounded min value is not allowed")
+__naked int subprog_result_tail_call(void)
+{
+	asm volatile (
+		"r2 = 3;"
+		"call identity_tail_call;"
+		"r0 *= 4;"
+		"r1 = %[vals];"
+		"r1 += r0;"
+		"r0 = *(u32 *)(r1 + 0);"
+		"exit;"
+		:
+		: __imm_ptr(vals)
+		: __clobber_common
+	);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_subreg.c b/tools/testing/selftests/bpf/progs/verifier_subreg.c
new file mode 100644
index 000000000000..8613ea160dcd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_subreg.c
@@ -0,0 +1,673 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/subreg.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+/* This file contains sub-register zero extension checks for insns defining
+ * sub-registers, meaning:
+ *   - All insns under BPF_ALU class. Their BPF_ALU32 variants or narrow width
+ *     forms (BPF_END) could define sub-registers.
+ *   - Narrow direct loads, BPF_B/H/W | BPF_LDX.
+ *   - BPF_LD is not exposed to JIT back-ends, so no need for testing.
+ *
+ * "get_prandom_u32" is used to initialize low 32-bit of some registers to
+ * prevent potential optimizations done by verifier or JIT back-ends which could
+ * optimize register back into constant when range info shows one register is a
+ * constant.
+ */
+
+SEC("socket")
+__description("add32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void add32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = 0x100000000 ll;				\
+	w0 += w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("add32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void add32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	/* An insn could have no effect on the low 32-bit, for example:\
+	 *   a = a + 0					\
+	 *   a = a | 0					\
+	 *   a = a & -1					\
+	 * But, they should still zero high 32-bit.	\
+	 */						\
+	w0 += 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 += -2;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sub32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void sub32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = 0x1ffffffff ll;				\
+	w0 -= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sub32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void sub32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 -= 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 -= 1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mul32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mul32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = 0x100000001 ll;				\
+	w0 *= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mul32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mul32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 *= 1;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 *= -1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("div32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void div32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = -1;					\
+	w0 /= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("div32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void div32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 /= 1;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 /= 2;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("or32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void or32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = 0x100000001 ll;				\
+	w0 |= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("or32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void or32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 |= 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 |= 1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("and32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void and32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x100000000 ll;				\
+	r1 |= r0;					\
+	r0 = 0x1ffffffff ll;				\
+	w0 &= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("and32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void and32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 &= -1;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 &= -2;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("lsh32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void lsh32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x100000000 ll;				\
+	r0 |= r1;					\
+	r1 = 1;						\
+	w0 <<= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("lsh32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void lsh32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 <<= 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 <<= 1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("rsh32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void rsh32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	r1 = 1;						\
+	w0 >>= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("rsh32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void rsh32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 >>= 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 >>= 1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("neg32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void neg32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 = -w0;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mod32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mod32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = -1;					\
+	w0 %%= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mod32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mod32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 %%= 1;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 %%= 2;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("xor32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void xor32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = r0;					\
+	r0 = 0x100000000 ll;				\
+	w0 ^= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("xor32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void xor32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 ^= 1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mov32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mov32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x100000000 ll;				\
+	r1 |= r0;					\
+	r0 = 0x100000000 ll;				\
+	w0 = w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("mov32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void mov32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 = 0;						\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 = 1;						\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("arsh32 reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void arsh32_reg_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	r1 = 1;						\
+	w0 s>>= w1;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("arsh32 imm zero extend check")
+__success __success_unpriv __retval(0)
+__naked void arsh32_imm_zero_extend_check(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 s>>= 0;					\
+	r0 >>= 32;					\
+	r6 = r0;					\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	w0 s>>= 1;					\
+	r0 >>= 32;					\
+	r0 |= r6;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("end16 (to_le) reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void le_reg_zero_extend_check_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r6 = r0;					\
+	r6 <<= 32;					\
+	call %[bpf_get_prandom_u32];			\
+	r0 |= r6;					\
+	r0 = le16 r0;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("end32 (to_le) reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void le_reg_zero_extend_check_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r6 = r0;					\
+	r6 <<= 32;					\
+	call %[bpf_get_prandom_u32];			\
+	r0 |= r6;					\
+	r0 = le32 r0;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("end16 (to_be) reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void be_reg_zero_extend_check_1(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r6 = r0;					\
+	r6 <<= 32;					\
+	call %[bpf_get_prandom_u32];			\
+	r0 |= r6;					\
+	r0 = be16 r0;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("end32 (to_be) reg zero extend check")
+__success __success_unpriv __retval(0)
+__naked void be_reg_zero_extend_check_2(void)
+{
+	asm volatile ("					\
+	call %[bpf_get_prandom_u32];			\
+	r6 = r0;					\
+	r6 <<= 32;					\
+	call %[bpf_get_prandom_u32];			\
+	r0 |= r6;					\
+	r0 = be32 r0;					\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ldx_b zero extend check")
+__success __success_unpriv __retval(0)
+__naked void ldx_b_zero_extend_check(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -4;					\
+	r7 = 0xfaceb00c;				\
+	*(u32*)(r6 + 0) = r7;				\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	r0 = *(u8*)(r6 + 0);				\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ldx_h zero extend check")
+__success __success_unpriv __retval(0)
+__naked void ldx_h_zero_extend_check(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -4;					\
+	r7 = 0xfaceb00c;				\
+	*(u32*)(r6 + 0) = r7;				\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	r0 = *(u16*)(r6 + 0);				\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("ldx_w zero extend check")
+__success __success_unpriv __retval(0)
+__naked void ldx_w_zero_extend_check(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -4;					\
+	r7 = 0xfaceb00c;				\
+	*(u32*)(r6 + 0) = r7;				\
+	call %[bpf_get_prandom_u32];			\
+	r1 = 0x1000000000 ll;				\
+	r0 |= r1;					\
+	r0 = *(u32*)(r6 + 0);				\
+	r0 >>= 32;					\
+	exit;						\
+"	:
+	: __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_tailcall.c b/tools/testing/selftests/bpf/progs/verifier_tailcall.c
new file mode 100644
index 000000000000..b4acce60fb9b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_tailcall.c
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} map_array SEC(".maps");
+
+SEC("socket")
+__description("invalid map type for tail call")
+__failure __msg("expected prog array map for tail call")
+__failure_unpriv
+__naked void invalid_map_for_tail_call(void)
+{
+	asm volatile ("			\
+	r2 = %[map_array] ll;	\
+	r3 = 0;				\
+	call %[bpf_tail_call];		\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_array)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_tailcall_jit.c b/tools/testing/selftests/bpf/progs/verifier_tailcall_jit.c
new file mode 100644
index 000000000000..8d60c634a114
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_tailcall_jit.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+int main(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__uint(key_size, sizeof(__u32));
+	__array(values, void (void));
+} jmp_table SEC(".maps") = {
+	.values = {
+		[0] = (void *) &main,
+	},
+};
+
+__noinline __auxiliary
+static __naked int sub(void)
+{
+	asm volatile (
+	"r2 = %[jmp_table] ll;"
+	"r3 = 0;"
+	"call 12;"
+	"exit;"
+	:
+	: __imm_addr(jmp_table)
+	: __clobber_all);
+}
+
+__success
+__arch_x86_64
+/* program entry for main(), regular function prologue */
+__jited("	endbr64")
+__jited("	nopl	(%rax,%rax)")
+__jited("	xorq	%rax, %rax")
+__jited("	pushq	%rbp")
+__jited("	movq	%rsp, %rbp")
+/* tail call prologue for program:
+ * - establish memory location for tail call counter at &rbp[-8];
+ * - spill tail_call_cnt_ptr at &rbp[-16];
+ * - expect tail call counter to be passed in rax;
+ * - for entry program rax is a raw counter, value < 33;
+ * - for tail called program rax is tail_call_cnt_ptr (value > 33).
+ */
+__jited("	endbr64")
+__jited("	cmpq	$0x21, %rax")
+__jited("	ja	L0")
+__jited("	pushq	%rax")
+__jited("	movq	%rsp, %rax")
+__jited("	jmp	L1")
+__jited("L0:	pushq	%rax")			/* rbp[-8]  = rax         */
+__jited("L1:	pushq	%rax")			/* rbp[-16] = rax         */
+/* on subprogram call restore rax to be tail_call_cnt_ptr from rbp[-16]
+ * (cause original rax might be clobbered by this point)
+ */
+__jited("	movq	-0x10(%rbp), %rax")
+__jited("	callq	0x{{.*}}")		/* call to sub()          */
+__jited("	xorl	%eax, %eax")
+__jited("	leave")
+__jited("	{{(retq|jmp	0x)}}")		/* return or jump to rethunk */
+__jited("...")
+/* subprogram entry for sub(), regular function prologue */
+__jited("	endbr64")
+__jited("	nopl	(%rax,%rax)")
+__jited("	nopl	(%rax)")
+__jited("	pushq	%rbp")
+__jited("	movq	%rsp, %rbp")
+/* tail call prologue for subprogram address of tail call counter
+ * stored at rbp[-16].
+ */
+__jited("	endbr64")
+__jited("	pushq	%rax")			/* rbp[-8]  = rax          */
+__jited("	pushq	%rax")			/* rbp[-16] = rax          */
+__jited("	movabsq	${{.*}}, %rsi")		/* r2 = &jmp_table         */
+__jited("	xorl	%edx, %edx")		/* r3 = 0                  */
+/* bpf_tail_call implementation:
+ * - load tail_call_cnt_ptr from rbp[-16];
+ * - if *tail_call_cnt_ptr < 33, increment it and jump to target;
+ * - otherwise do nothing.
+ */
+__jited("	movq	-0x10(%rbp), %rax")
+__jited("	cmpq	$0x21, (%rax)")
+__jited("	jae	L0")
+__jited("	nopl	(%rax,%rax)")
+__jited("	addq	$0x1, (%rax)")		/* *tail_call_cnt_ptr += 1 */
+__jited("	popq	%rax")
+__jited("	popq	%rax")
+__jited("	jmp	{{.*}}")		/* jump to tail call tgt   */
+__jited("L0:	leave")
+__jited("	{{(retq|jmp	0x)}}")		/* return or jump to rethunk */
+SEC("tc")
+__naked int main(void)
+{
+	asm volatile (
+	"call %[sub];"
+	"r0 = 0;"
+	"exit;"
+	:
+	: __imm(sub)
+	: __clobber_all);
+}
+
+char __license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_typedef.c b/tools/testing/selftests/bpf/progs/verifier_typedef.c
new file mode 100644
index 000000000000..08481cfaac4b
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_typedef.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("fentry/bpf_fentry_test_sinfo")
+__description("typedef: resolve")
+__success __retval(0)
+__naked void resolve_typedef(void)
+{
+	asm volatile ("					\
+	r1 = *(u64 *)(r1 +0);				\
+	r2 = *(u64 *)(r1 +%[frags_offs]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(frags_offs,
+		      offsetof(struct skb_shared_info, frags))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_uninit.c b/tools/testing/selftests/bpf/progs/verifier_uninit.c
new file mode 100644
index 000000000000..7718cd7d19ce
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_uninit.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/uninit.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+SEC("socket")
+__description("read uninitialized register")
+__failure __msg("R2 !read_ok")
+__failure_unpriv
+__naked void read_uninitialized_register(void)
+{
+	asm volatile ("					\
+	r0 = r2;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("read invalid register")
+__failure __msg("R15 is invalid")
+__failure_unpriv
+__naked void read_invalid_register(void)
+{
+	asm volatile ("					\
+	.8byte %[mov64_reg];				\
+	exit;						\
+"	:
+	: __imm_insn(mov64_reg, BPF_MOV64_REG(BPF_REG_0, -1))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("program doesn't init R0 before exit")
+__failure __msg("R0 !read_ok")
+__failure_unpriv
+__naked void t_init_r0_before_exit(void)
+{
+	asm volatile ("					\
+	r2 = r1;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("program doesn't init R0 before exit in all branches")
+__failure __msg("R0 !read_ok")
+__msg_unpriv("R1 pointer comparison")
+__naked void before_exit_in_all_branches(void)
+{
+	asm volatile ("					\
+	if r1 >= 0 goto l0_%=;				\
+	r0 = 1;						\
+	r0 += 2;					\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_unpriv.c b/tools/testing/selftests/bpf/progs/verifier_unpriv.c
new file mode 100644
index 000000000000..28b4f7035ceb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_unpriv.c
@@ -0,0 +1,953 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/unpriv.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+#define BPF_SK_LOOKUP(func) \
+	/* struct bpf_sock_tuple tuple = {} */ \
+	"r2 = 0;"			\
+	"*(u32*)(r10 - 8) = r2;"	\
+	"*(u64*)(r10 - 16) = r2;"	\
+	"*(u64*)(r10 - 24) = r2;"	\
+	"*(u64*)(r10 - 32) = r2;"	\
+	"*(u64*)(r10 - 40) = r2;"	\
+	"*(u64*)(r10 - 48) = r2;"	\
+	/* sk = func(ctx, &tuple, sizeof tuple, 0, 0) */ \
+	"r2 = r10;"			\
+	"r2 += -48;"			\
+	"r3 = %[sizeof_bpf_sock_tuple];"\
+	"r4 = 0;"			\
+	"r5 = 0;"			\
+	"call %[" #func "];"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+void dummy_prog_42_socket(void);
+void dummy_prog_24_socket(void);
+void dummy_prog_loop1_socket(void);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 4);
+	__uint(key_size, sizeof(int));
+	__array(values, void (void));
+} map_prog1_socket SEC(".maps") = {
+	.values = {
+		[0] = (void *)&dummy_prog_42_socket,
+		[1] = (void *)&dummy_prog_loop1_socket,
+		[2] = (void *)&dummy_prog_24_socket,
+	},
+};
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_42_socket(void)
+{
+	asm volatile ("r0 = 42; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_24_socket(void)
+{
+	asm volatile ("r0 = 24; exit;");
+}
+
+SEC("socket")
+__auxiliary __auxiliary_unpriv
+__naked void dummy_prog_loop1_socket(void)
+{
+	asm volatile ("			\
+	r3 = 1;				\
+	r2 = %[map_prog1_socket] ll;	\
+	call %[bpf_tail_call];		\
+	r0 = 41;			\
+	exit;				\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: return pointer")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(POINTER_VALUE)
+__naked void unpriv_return_pointer(void)
+{
+	asm volatile ("					\
+	r0 = r10;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: add const to pointer")
+__success __success_unpriv __retval(0)
+__naked void unpriv_add_const_to_pointer(void)
+{
+	asm volatile ("					\
+	r1 += 8;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: add pointer to pointer")
+__failure __msg("R1 pointer += pointer")
+__failure_unpriv
+__naked void unpriv_add_pointer_to_pointer(void)
+{
+	asm volatile ("					\
+	r1 += r10;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: neg pointer")
+__success __failure_unpriv __msg_unpriv("R1 pointer arithmetic")
+__retval(0)
+__naked void unpriv_neg_pointer(void)
+{
+	asm volatile ("					\
+	r1 = -r1;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp pointer with const")
+__success __failure_unpriv __msg_unpriv("R1 pointer comparison")
+__retval(0)
+__naked void unpriv_cmp_pointer_with_const(void)
+{
+	asm volatile ("					\
+	if r1 == 0 goto l0_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp pointer with pointer")
+__success __failure_unpriv __msg_unpriv("R10 pointer comparison")
+__retval(0)
+__naked void unpriv_cmp_pointer_with_pointer(void)
+{
+	asm volatile ("					\
+	if r1 == r10 goto l0_%=;			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tracepoint")
+__description("unpriv: check that printk is disallowed")
+__success
+__naked void check_that_printk_is_disallowed(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r1 = r10;					\
+	r1 += -8;					\
+	r2 = 8;						\
+	r3 = r1;					\
+	call %[bpf_trace_printk];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_trace_printk)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: pass pointer to helper function")
+__success __failure_unpriv __msg_unpriv("R4 leaks addr")
+__retval(0)
+__naked void pass_pointer_to_helper_function(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	r3 = r2;					\
+	r4 = r2;					\
+	call %[bpf_map_update_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_update_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: indirectly pass pointer on stack to helper function")
+__success __failure_unpriv
+__msg_unpriv("invalid read from stack R2 off -8+0 size 8")
+__retval(0)
+__naked void on_stack_to_helper_function(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r10;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: mangle pointer on stack 1")
+__success __failure_unpriv __msg_unpriv("attempt to corrupt spilled")
+__retval(0)
+__naked void mangle_pointer_on_stack_1(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r10;				\
+	r0 = 0;						\
+	*(u32*)(r10 - 8) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: mangle pointer on stack 2")
+__success __failure_unpriv __msg_unpriv("attempt to corrupt spilled")
+__retval(0)
+__naked void mangle_pointer_on_stack_2(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r10;				\
+	r0 = 0;						\
+	*(u8*)(r10 - 1) = r0;				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: read pointer from stack in small chunks")
+__failure __msg("invalid size")
+__failure_unpriv
+__naked void from_stack_in_small_chunks(void)
+{
+	asm volatile ("					\
+	*(u64*)(r10 - 8) = r10;				\
+	r0 = *(u32*)(r10 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: write pointer into ctx")
+__failure __msg("invalid bpf_context access")
+__failure_unpriv __msg_unpriv("R1 leaks addr")
+__naked void unpriv_write_pointer_into_ctx(void)
+{
+	asm volatile ("					\
+	*(u64*)(r1 + 0) = r1;				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: spill/fill of ctx")
+__success __success_unpriv __retval(0)
+__naked void unpriv_spill_fill_of_ctx(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r1;				\
+	r1 = *(u64*)(r6 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of ctx 2")
+__success __retval(0)
+__naked void spill_fill_of_ctx_2(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r1;				\
+	r1 = *(u64*)(r6 + 0);				\
+	call %[bpf_get_hash_recalc];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_get_hash_recalc)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of ctx 3")
+__failure __msg("R1 type=fp expected=ctx")
+__naked void spill_fill_of_ctx_3(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r1;				\
+	*(u64*)(r6 + 0) = r10;				\
+	r1 = *(u64*)(r6 + 0);				\
+	call %[bpf_get_hash_recalc];			\
+	exit;						\
+"	:
+	: __imm(bpf_get_hash_recalc)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of ctx 4")
+__failure __msg("R1 type=scalar expected=ctx")
+__naked void spill_fill_of_ctx_4(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r1;				\
+	r0 = 1;						\
+	lock *(u64 *)(r10 - 8) += r0;			\
+	r1 = *(u64*)(r6 + 0);				\
+	call %[bpf_get_hash_recalc];			\
+	exit;						\
+"	:
+	: __imm(bpf_get_hash_recalc)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of different pointers stx")
+__failure __msg("same insn cannot be used with different pointers")
+__naked void fill_of_different_pointers_stx(void)
+{
+	asm volatile ("					\
+	r3 = 42;					\
+	r6 = r10;					\
+	r6 += -8;					\
+	if r1 == 0 goto l0_%=;				\
+	r2 = r10;					\
+	r2 += -16;					\
+	*(u64*)(r6 + 0) = r2;				\
+l0_%=:	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l1_%=:	r1 = *(u64*)(r6 + 0);				\
+	*(u32*)(r1 + %[__sk_buff_mark]) = r3;		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark))
+	: __clobber_all);
+}
+
+/* Same as above, but use BPF_ST_MEM to save 42
+ * instead of BPF_STX_MEM.
+ */
+SEC("tc")
+__description("unpriv: spill/fill of different pointers st")
+__failure __msg("same insn cannot be used with different pointers")
+__naked void fill_of_different_pointers_st(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	if r1 == 0 goto l0_%=;				\
+	r2 = r10;					\
+	r2 += -16;					\
+	*(u64*)(r6 + 0) = r2;				\
+l0_%=:	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l1_%=:	r1 = *(u64*)(r6 + 0);				\
+	.8byte %[st_mem];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_insn(st_mem,
+		     BPF_ST_MEM(BPF_W, BPF_REG_1, offsetof(struct __sk_buff, mark), 42))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of different pointers stx - ctx and sock")
+__failure __msg("type=ctx expected=sock")
+__naked void pointers_stx_ctx_and_sock(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	/* struct bpf_sock *sock = bpf_sock_lookup(...); */\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r2 = r0;					\
+	/* u64 foo; */					\
+	/* void *target = &foo; */			\
+	r6 = r10;					\
+	r6 += -8;					\
+	r1 = r8;					\
+	/* if (skb == NULL) *target = sock; */		\
+	if r1 == 0 goto l0_%=;				\
+	*(u64*)(r6 + 0) = r2;				\
+l0_%=:	/* else *target = skb; */			\
+	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l1_%=:	/* struct __sk_buff *skb = *target; */		\
+	r1 = *(u64*)(r6 + 0);				\
+	/* skb->mark = 42; */				\
+	r3 = 42;					\
+	*(u32*)(r1 + %[__sk_buff_mark]) = r3;		\
+	/* if (sk) bpf_sk_release(sk) */		\
+	if r1 == 0 goto l2_%=;				\
+	call %[bpf_sk_release];				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of different pointers stx - leak sock")
+__failure
+//.errstr = "same insn cannot be used with different pointers",
+__msg("Unreleased reference")
+__naked void different_pointers_stx_leak_sock(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	/* struct bpf_sock *sock = bpf_sock_lookup(...); */\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r2 = r0;					\
+	/* u64 foo; */					\
+	/* void *target = &foo; */			\
+	r6 = r10;					\
+	r6 += -8;					\
+	r1 = r8;					\
+	/* if (skb == NULL) *target = sock; */		\
+	if r1 == 0 goto l0_%=;				\
+	*(u64*)(r6 + 0) = r2;				\
+l0_%=:	/* else *target = skb; */			\
+	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l1_%=:	/* struct __sk_buff *skb = *target; */		\
+	r1 = *(u64*)(r6 + 0);				\
+	/* skb->mark = 42; */				\
+	r3 = 42;					\
+	*(u32*)(r1 + %[__sk_buff_mark]) = r3;		\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm_const(__sk_buff_mark, offsetof(struct __sk_buff, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of different pointers stx - sock and ctx (read)")
+__failure __msg("same insn cannot be used with different pointers")
+__naked void stx_sock_and_ctx_read(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	/* struct bpf_sock *sock = bpf_sock_lookup(...); */\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r2 = r0;					\
+	/* u64 foo; */					\
+	/* void *target = &foo; */			\
+	r6 = r10;					\
+	r6 += -8;					\
+	r1 = r8;					\
+	/* if (skb) *target = skb */			\
+	if r1 == 0 goto l0_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l0_%=:	/* else *target = sock */			\
+	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r2;				\
+l1_%=:	/* struct bpf_sock *sk = *target; */		\
+	r1 = *(u64*)(r6 + 0);				\
+	/* if (sk) u32 foo = sk->mark; bpf_sk_release(sk); */\
+	if r1 == 0 goto l2_%=;				\
+	r3 = *(u32*)(r1 + %[bpf_sock_mark]);		\
+	call %[bpf_sk_release];				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_mark, offsetof(struct bpf_sock, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("unpriv: spill/fill of different pointers stx - sock and ctx (write)")
+__failure
+//.errstr = "same insn cannot be used with different pointers",
+__msg("cannot write into sock")
+__naked void stx_sock_and_ctx_write(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	/* struct bpf_sock *sock = bpf_sock_lookup(...); */\
+"	BPF_SK_LOOKUP(bpf_sk_lookup_tcp)
+"	r2 = r0;					\
+	/* u64 foo; */					\
+	/* void *target = &foo; */			\
+	r6 = r10;					\
+	r6 += -8;					\
+	r1 = r8;					\
+	/* if (skb) *target = skb */			\
+	if r1 == 0 goto l0_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l0_%=:	/* else *target = sock */			\
+	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r2;				\
+l1_%=:	/* struct bpf_sock *sk = *target; */		\
+	r1 = *(u64*)(r6 + 0);				\
+	/* if (sk) sk->mark = 42; bpf_sk_release(sk); */\
+	if r1 == 0 goto l2_%=;				\
+	r3 = 42;					\
+	*(u32*)(r1 + %[bpf_sock_mark]) = r3;		\
+	call %[bpf_sk_release];				\
+l2_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_sk_lookup_tcp),
+	  __imm(bpf_sk_release),
+	  __imm_const(bpf_sock_mark, offsetof(struct bpf_sock, mark)),
+	  __imm_const(sizeof_bpf_sock_tuple, sizeof(struct bpf_sock_tuple))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: write pointer into map elem value")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void pointer_into_map_elem_value(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	*(u64*)(r0 + 0) = r0;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("alu32: mov u32 const")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if r0 == 0x0 goto pc+2")
+__xlated_unpriv("nospec") /* inserted to prevent `R7 invalid mem access 'scalar'` */
+__xlated_unpriv("goto pc-1") /* sanitized dead code */
+__xlated_unpriv("exit")
+#endif
+__naked void alu32_mov_u32_const(void)
+{
+	asm volatile ("					\
+	w7 = 0;						\
+	w7 &= 1;					\
+	w0 = w7;					\
+	if r0 == 0 goto l0_%=;				\
+	r0 = *(u64*)(r7 + 0);				\
+l0_%=:	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: partial copy of pointer")
+__success __failure_unpriv __msg_unpriv("R10 partial copy")
+__retval(0)
+__naked void unpriv_partial_copy_of_pointer(void)
+{
+	asm volatile ("					\
+	w1 = w10;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: pass pointer to tail_call")
+__success __failure_unpriv __msg_unpriv("R3 leaks addr into helper")
+__retval(0)
+__naked void pass_pointer_to_tail_call(void)
+{
+	asm volatile ("					\
+	r3 = r1;					\
+	r2 = %[map_prog1_socket] ll;			\
+	call %[bpf_tail_call];				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_tail_call),
+	  __imm_addr(map_prog1_socket)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp map pointer with zero")
+__success __success_unpriv
+__retval(0)
+__naked void cmp_map_pointer_with_zero(void)
+{
+	asm volatile ("					\
+	r1 = %[map_hash_8b] ll;				\
+	if r1 == 0 goto l0_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp map pointer with const")
+__success __failure_unpriv __msg_unpriv("R1 pointer comparison prohibited")
+__retval(0)
+__naked void cmp_map_pointer_with_const(void)
+{
+	asm volatile ("					\
+	r1 = %[map_hash_8b] ll;				\
+	if r1 == 0x0000beef goto l0_%=;			\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: write into frame pointer")
+__failure __msg("frame pointer is read only")
+__failure_unpriv
+__naked void unpriv_write_into_frame_pointer(void)
+{
+	asm volatile ("					\
+	r10 = r1;					\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: spill/fill frame pointer")
+__failure __msg("frame pointer is read only")
+__failure_unpriv
+__naked void unpriv_spill_fill_frame_pointer(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	*(u64*)(r6 + 0) = r10;				\
+	r10 = *(u64*)(r6 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp of frame pointer")
+__success __failure_unpriv __msg_unpriv("R10 pointer comparison")
+__retval(0)
+__naked void unpriv_cmp_of_frame_pointer(void)
+{
+	asm volatile ("					\
+	if r10 == 0 goto l0_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: adding of fp, reg")
+__success __failure_unpriv
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__retval(0)
+__naked void unpriv_adding_of_fp_reg(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = 0;						\
+	r1 += r10;					\
+	*(u64*)(r1 - 8) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: adding of fp, imm")
+__success __failure_unpriv
+__msg_unpriv("R1 stack pointer arithmetic goes out of range")
+__retval(0)
+__naked void unpriv_adding_of_fp_imm(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = r10;					\
+	r1 += 0;					\
+	*(u64*)(r1 - 8) = r0;				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: cmp of stack pointer")
+__success __failure_unpriv __msg_unpriv("R2 pointer comparison")
+__retval(0)
+__naked void unpriv_cmp_of_stack_pointer(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r2 == 0 goto l0_%=;				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: Spectre v1 path-based type confusion of scalar as stack-ptr")
+__success __success_unpriv __retval(0)
+#ifdef SPEC_V1
+__xlated_unpriv("if r0 != 0x1 goto pc+2")
+/* This nospec prevents the exploit because it forces the mispredicted (not
+ * taken) `if r0 != 0x0 goto l0_%=` to resolve before using r6 as a pointer.
+ * This causes the CPU to realize that `r6 = r9` should have never executed. It
+ * ensures that r6 always contains a readable stack slot ptr when the insn after
+ * the nospec executes.
+ */
+__xlated_unpriv("nospec")
+__xlated_unpriv("r9 = *(u8 *)(r6 +0)")
+#endif
+__naked void unpriv_spec_v1_type_confusion(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	/* r0: pointer to a map array entry */		\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	/* r1, r2: prepared call args */		\
+	r6 = r10;					\
+	r6 += -8;					\
+	/* r6: pointer to readable stack slot */	\
+	r9 = 0xffffc900;				\
+	r9 <<= 32;					\
+	/* r9: scalar controlled by attacker */		\
+	r0 = *(u64 *)(r0 + 0); /* cache miss */		\
+	if r0 != 0x0 goto l0_%=;			\
+	r6 = r9;					\
+l0_%=:	if r0 != 0x1 goto l1_%=;			\
+	r9 = *(u8 *)(r6 + 0);				\
+l1_%=:  /* leak r9 */					\
+	r9 &= 1;					\
+	r9 <<= 9;					\
+	*(u64*)(r10 - 8) = r9;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	/* leak secret into is_cached(map[0|512]): */	\
+	r0 = *(u64 *)(r0 + 0);				\
+l2_%=:							\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: ldimm64 before Spectre v4 barrier")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V4
+__xlated_unpriv("r1 = 0x2020200005642020") /* should not matter */
+__xlated_unpriv("*(u64 *)(r10 -8) = r1")
+__xlated_unpriv("nospec")
+#endif
+__naked void unpriv_ldimm64_spectre_v4(void)
+{
+	asm volatile ("					\
+	r1 = 0x2020200005642020 ll;			\
+	*(u64 *)(r10 -8) = r1;				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: Spectre v1 and v4 barrier")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+#ifdef SPEC_V4
+/* starts with r0 == r8 == r9 == 0 */
+__xlated_unpriv("if r8 != 0x0 goto pc+1")
+__xlated_unpriv("goto pc+2")
+__xlated_unpriv("if r9 == 0x0 goto pc+4")
+__xlated_unpriv("r2 = r0")
+/* Following nospec required to prevent following dangerous `*(u64 *)(NOT_FP -64)
+ * = r1` iff `if r9 == 0 goto pc+4` was mispredicted because of Spectre v1. The
+ * test therefore ensures the Spectre-v4--induced nospec does not prevent the
+ * Spectre-v1--induced speculative path from being fully analyzed.
+ */
+__xlated_unpriv("nospec") /* Spectre v1 */
+__xlated_unpriv("*(u64 *)(r2 -64) = r1") /* could be used to leak r2 */
+__xlated_unpriv("nospec") /* Spectre v4 */
+#endif
+#endif
+__naked void unpriv_spectre_v1_and_v4(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r8 = r0;					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r9 = r0;					\
+	r0 = r10;					\
+	r1 = 0;						\
+	r2 = r10;					\
+	if r8 != 0 goto l0_%=;				\
+	if r9 != 0 goto l0_%=;				\
+	r0 = 0;						\
+l0_%=:	if r8 != 0 goto l1_%=;				\
+	goto l2_%=;					\
+l1_%=:	if r9 == 0 goto l3_%=;				\
+	r2 = r0;					\
+l2_%=:	*(u64 *)(r2 -64) = r1;				\
+l3_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: Spectre v1 and v4 barrier (simple)")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+#ifdef SPEC_V4
+__xlated_unpriv("if r8 != 0x0 goto pc+1")
+__xlated_unpriv("goto pc+2")
+__xlated_unpriv("goto pc-1") /* if r9 == 0 goto l3_%= */
+__xlated_unpriv("goto pc-1") /* r2 = r0 */
+__xlated_unpriv("nospec")
+__xlated_unpriv("*(u64 *)(r2 -64) = r1")
+__xlated_unpriv("nospec")
+#endif
+#endif
+__naked void unpriv_spectre_v1_and_v4_simple(void)
+{
+	asm volatile ("					\
+	r8 = 0;						\
+	r9 = 0;						\
+	r0 = r10;					\
+	r1 = 0;						\
+	r2 = r10;					\
+	if r8 != 0 goto l0_%=;				\
+	if r9 != 0 goto l0_%=;				\
+	r0 = 0;						\
+l0_%=:	if r8 != 0 goto l1_%=;				\
+	goto l2_%=;					\
+l1_%=:	if r9 == 0 goto l3_%=;				\
+	r2 = r0;					\
+l2_%=:	*(u64 *)(r2 -64) = r1;				\
+l3_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("unpriv: ldimm64 before Spectre v1 and v4 barrier (simple)")
+__success __success_unpriv
+__retval(0)
+#ifdef SPEC_V1
+#ifdef SPEC_V4
+__xlated_unpriv("if r8 != 0x0 goto pc+1")
+__xlated_unpriv("goto pc+4")
+__xlated_unpriv("goto pc-1") /* if r9 == 0 goto l3_%= */
+__xlated_unpriv("goto pc-1") /* r2 = r0 */
+__xlated_unpriv("goto pc-1") /* r1 = 0x2020200005642020 ll */
+__xlated_unpriv("goto pc-1") /* second part of ldimm64 */
+__xlated_unpriv("nospec")
+__xlated_unpriv("*(u64 *)(r2 -64) = r1")
+__xlated_unpriv("nospec")
+#endif
+#endif
+__naked void unpriv_ldimm64_spectre_v1_and_v4_simple(void)
+{
+	asm volatile ("					\
+	r8 = 0;						\
+	r9 = 0;						\
+	r0 = r10;					\
+	r1 = 0;						\
+	r2 = r10;					\
+	if r8 != 0 goto l0_%=;				\
+	if r9 != 0 goto l0_%=;				\
+	r0 = 0;						\
+l0_%=:	if r8 != 0 goto l1_%=;				\
+	goto l2_%=;					\
+l1_%=:	if r9 == 0 goto l3_%=;				\
+	r2 = r0;					\
+	r1 = 0x2020200005642020 ll;			\
+l2_%=:	*(u64 *)(r2 -64) = r1;				\
+l3_%=:	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_unpriv_perf.c b/tools/testing/selftests/bpf/progs/verifier_unpriv_perf.c
new file mode 100644
index 000000000000..4d77407a0a79
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_unpriv_perf.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/unpriv.c */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("perf_event")
+__description("unpriv: spill/fill of different pointers ldx")
+__failure __msg("same insn cannot be used with different pointers")
+__naked void fill_of_different_pointers_ldx(void)
+{
+	asm volatile ("					\
+	r6 = r10;					\
+	r6 += -8;					\
+	if r1 == 0 goto l0_%=;				\
+	r2 = r10;					\
+	r2 += %[__imm_0];				\
+	*(u64*)(r6 + 0) = r2;				\
+l0_%=:	if r1 != 0 goto l1_%=;				\
+	*(u64*)(r6 + 0) = r1;				\
+l1_%=:	r1 = *(u64*)(r6 + 0);				\
+	r1 = *(u64*)(r1 + %[sample_period]);		\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__imm_0,
+		      -(__s32) offsetof(struct bpf_perf_event_data, sample_period) - 8),
+	  __imm_const(sample_period,
+		      offsetof(struct bpf_perf_event_data, sample_period))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_value.c b/tools/testing/selftests/bpf/progs/verifier_value.c
new file mode 100644
index 000000000000..b5af6b6f5acd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_value.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/value.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("map element value store of cleared call register")
+__failure __msg("R1 !read_ok")
+__failure_unpriv __msg_unpriv("R1 !read_ok")
+__naked void store_of_cleared_call_register(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value with unaligned store")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void element_value_with_unaligned_store(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 += 3;					\
+	r1 = 42;					\
+	*(u64*)(r0 + 0) = r1;				\
+	r1 = 43;					\
+	*(u64*)(r0 + 2) = r1;				\
+	r1 = 44;					\
+	*(u64*)(r0 - 2) = r1;				\
+	r8 = r0;					\
+	r1 = 32;					\
+	*(u64*)(r8 + 0) = r1;				\
+	r1 = 33;					\
+	*(u64*)(r8 + 2) = r1;				\
+	r1 = 34;					\
+	*(u64*)(r8 - 2) = r1;				\
+	r8 += 5;					\
+	r1 = 22;					\
+	*(u64*)(r8 + 0) = r1;				\
+	r1 = 23;					\
+	*(u64*)(r8 + 4) = r1;				\
+	r1 = 24;					\
+	*(u64*)(r8 - 7) = r1;				\
+	r7 = r8;					\
+	r7 += 3;					\
+	r1 = 22;					\
+	*(u64*)(r7 + 0) = r1;				\
+	r1 = 23;					\
+	*(u64*)(r7 + 4) = r1;				\
+	r1 = 24;					\
+	*(u64*)(r7 - 4) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value with unaligned load")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void element_value_with_unaligned_load(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	if r1 >= %[max_entries] goto l0_%=;		\
+	r0 += 3;					\
+	r7 = *(u64*)(r0 + 0);				\
+	r7 = *(u64*)(r0 + 2);				\
+	r8 = r0;					\
+	r7 = *(u64*)(r8 + 0);				\
+	r7 = *(u64*)(r8 + 2);				\
+	r0 += 5;					\
+	r7 = *(u64*)(r0 + 0);				\
+	r7 = *(u64*)(r0 + 4);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(max_entries, MAX_ENTRIES)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value is preserved across register spilling")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void is_preserved_across_register_spilling(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 += %[test_val_foo];				\
+	r1 = 42;					\
+	*(u64*)(r0 + 0) = r1;				\
+	r1 = r10;					\
+	r1 += -184;					\
+	*(u64*)(r1 + 0) = r0;				\
+	r3 = *(u64*)(r1 + 0);				\
+	r1 = 42;					\
+	*(u64*)(r3 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_value_adj_spill.c b/tools/testing/selftests/bpf/progs/verifier_value_adj_spill.c
new file mode 100644
index 000000000000..d7a5ba9bbe6a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_value_adj_spill.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/value_adj_spill.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("map element value is preserved across register spilling")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void is_preserved_across_register_spilling(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 42;					\
+	*(u64*)(r0 + 0) = r1;				\
+	r1 = r10;					\
+	r1 += -184;					\
+	*(u64*)(r1 + 0) = r0;				\
+	r3 = *(u64*)(r1 + 0);				\
+	r1 = 42;					\
+	*(u64*)(r3 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value or null is marked on register spilling")
+__success __failure_unpriv __msg_unpriv("R0 leaks addr")
+__retval(0)
+__naked void is_marked_on_register_spilling(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	r1 = r10;					\
+	r1 += -152;					\
+	*(u64*)(r1 + 0) = r0;				\
+	if r0 == 0 goto l0_%=;				\
+	r3 = *(u64*)(r1 + 0);				\
+	r1 = 42;					\
+	*(u64*)(r3 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_value_illegal_alu.c b/tools/testing/selftests/bpf/progs/verifier_value_illegal_alu.c
new file mode 100644
index 000000000000..2129e4353fd9
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_value_illegal_alu.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/value_illegal_alu.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "../../../include/linux/filter.h"
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("map element value illegal alu op, 1")
+__failure __msg("R0 bitwise operator &= on pointer")
+__failure_unpriv
+__naked void value_illegal_alu_op_1(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 &= 8;					\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value illegal alu op, 2")
+__failure __msg("R0 32-bit pointer arithmetic prohibited")
+__failure_unpriv
+__naked void value_illegal_alu_op_2(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	w0 += 0;					\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value illegal alu op, 3")
+__failure __msg("R0 pointer arithmetic with /= operator")
+__failure_unpriv
+__naked void value_illegal_alu_op_3(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 /= 42;					\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value illegal alu op, 4")
+__failure __msg("invalid mem access 'scalar'")
+__failure_unpriv __msg_unpriv("R0 pointer arithmetic prohibited")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void value_illegal_alu_op_4(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 = be64 r0;					\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map element value illegal alu op, 5")
+__failure __msg("R0 invalid mem access 'scalar'")
+__msg_unpriv("leaking pointer from stack off -8")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void value_illegal_alu_op_5(void)
+{
+	asm volatile ("					\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = 0;						\
+	*(u64*)(r2 + 0) = r1;				\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r3 = 4096;					\
+	r2 = r10;					\
+	r2 += -8;					\
+	*(u64*)(r2 + 0) = r0;				\
+	lock *(u64 *)(r2 + 0) += r3;			\
+	r0 = *(u64*)(r2 + 0);				\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map_ptr illegal alu op, map_ptr = -map_ptr")
+__failure __msg("R0 invalid mem access 'scalar'")
+__failure_unpriv __msg_unpriv("R0 pointer arithmetic prohibited")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void map_ptr_illegal_alu_op(void)
+{
+	asm volatile ("					\
+	r0 = %[map_hash_48b] ll;			\
+	r0 = -r0;					\
+	r1 = 22;					\
+	*(u64*)(r0 + 0) = r1;				\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_48b)
+	: __clobber_all);
+}
+
+SEC("flow_dissector")
+__description("flow_keys illegal alu op with variable offset")
+__failure __msg("R7 pointer arithmetic on flow_keys prohibited")
+__naked void flow_keys_illegal_variable_offset_alu(void)
+{
+	asm volatile("					\
+	r6 = r1;					\
+	r7 = *(u64*)(r6 + %[flow_keys_off]);		\
+	r8 = 8;						\
+	r8 /= 1;					\
+	r8 &= 8;					\
+	r7 += r8;					\
+	r0 = *(u64*)(r7 + 0);				\
+	exit;						\
+"	:
+	: __imm_const(flow_keys_off, offsetof(struct __sk_buff, flow_keys))
+	: __clobber_all);
+}
+
+#define DEFINE_BAD_OFFSET_TEST(name, op, off, imm)	\
+	SEC("socket")					\
+	__failure __msg("BPF_ALU uses reserved fields") \
+	__naked void name(void)				\
+	{						\
+		asm volatile(				\
+			"r0 = 1;"			\
+			".8byte %[insn];"		\
+			"r0 = 0;"			\
+			"exit;"				\
+		:					\
+		: __imm_insn(insn, BPF_RAW_INSN((op), 0, 0, (off), (imm))) \
+		: __clobber_all);			\
+	}
+
+/*
+ * Offset fields of 0 and 1 are legal for BPF_{DIV,MOD} instructions.
+ * Offset fields of 0 are legal for the rest of ALU instructions.
+ * Test that error is reported for illegal offsets, assuming that tests
+ * for legal offsets exist.
+ */
+DEFINE_BAD_OFFSET_TEST(bad_offset_divx, BPF_ALU64 | BPF_DIV | BPF_X, -1, 0)
+DEFINE_BAD_OFFSET_TEST(bad_offset_modk, BPF_ALU64 | BPF_MOD | BPF_K, -1, 1)
+DEFINE_BAD_OFFSET_TEST(bad_offset_addx, BPF_ALU64 | BPF_ADD | BPF_X, -1, 0)
+DEFINE_BAD_OFFSET_TEST(bad_offset_divx2, BPF_ALU64 | BPF_DIV | BPF_X, 2, 0)
+DEFINE_BAD_OFFSET_TEST(bad_offset_modk2, BPF_ALU64 | BPF_MOD | BPF_K, 2, 1)
+DEFINE_BAD_OFFSET_TEST(bad_offset_addx2, BPF_ALU64 | BPF_ADD | BPF_X, 1, 0)
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_value_or_null.c b/tools/testing/selftests/bpf/progs/verifier_value_or_null.c
new file mode 100644
index 000000000000..8ff668a242eb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_value_or_null.c
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/value_or_null.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("tc")
+__description("multiple registers share map_lookup_elem result")
+__success __retval(0)
+__naked void share_map_lookup_elem_result(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r4 = r0;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("alu ops on ptr_to_map_value_or_null, 1")
+__failure __msg("R4 pointer arithmetic on map_value_or_null")
+__naked void map_value_or_null_1(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r4 = r0;					\
+	r4 += -2;					\
+	r4 += 2;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("alu ops on ptr_to_map_value_or_null, 2")
+__failure __msg("R4 pointer arithmetic on map_value_or_null")
+__naked void map_value_or_null_2(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r4 = r0;					\
+	r4 &= -1;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("alu ops on ptr_to_map_value_or_null, 3")
+__failure __msg("R4 pointer arithmetic on map_value_or_null")
+__naked void map_value_or_null_3(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r4 = r0;					\
+	r4 <<= 1;					\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("invalid memory access with multiple map_lookup_elem calls")
+__failure __msg("R4 !read_ok")
+__naked void multiple_map_lookup_elem_calls(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	r8 = r1;					\
+	r7 = r2;					\
+	call %[bpf_map_lookup_elem];			\
+	r4 = r0;					\
+	r1 = r8;					\
+	r2 = r7;					\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("valid indirect map_lookup_elem access with 2nd lookup in branch")
+__success __retval(0)
+__naked void with_2nd_lookup_in_branch(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	r8 = r1;					\
+	r7 = r2;					\
+	call %[bpf_map_lookup_elem];			\
+	r2 = 10;					\
+	if r2 != 0 goto l0_%=;				\
+	r1 = r8;					\
+	r2 = r7;					\
+	call %[bpf_map_lookup_elem];			\
+l0_%=:	r4 = r0;					\
+	if r0 == 0 goto l1_%=;				\
+	r1 = 0;						\
+	*(u64*)(r4 + 0) = r1;				\
+l1_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("invalid map access from else condition")
+__failure __msg("R0 unbounded memory access")
+__failure_unpriv __msg_unpriv("R0 leaks addr")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void map_access_from_else_condition(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	if r1 >= %[__imm_0] goto l1_%=;			\
+	r1 += 1;					\
+l1_%=:	r1 <<= 2;					\
+	r0 += r1;					\
+	r1 = %[test_val_foo];				\
+	*(u64*)(r0 + 0) = r1;				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__imm_0, MAX_ENTRIES-1),
+	  __imm_const(test_val_foo, offsetof(struct test_val, foo))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("map lookup and null branch prediction")
+__success __retval(0)
+__naked void lookup_and_null_branch_prediction(void)
+{
+	asm volatile ("					\
+	r1 = 10;					\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r6 = r0;					\
+	if r6 == 0 goto l0_%=;				\
+	if r6 != 0 goto l0_%=;				\
+	r10 += 10;					\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("MAP_VALUE_OR_NULL check_ids() in regsafe()")
+__failure __msg("R8 invalid mem access 'map_value_or_null'")
+__failure_unpriv __msg_unpriv("")
+__flag(BPF_F_TEST_STATE_FREQ)
+__naked void null_check_ids_in_regsafe(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	/* r9 = map_lookup_elem(...) */			\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r9 = r0;					\
+	/* r8 = map_lookup_elem(...) */			\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r8 = r0;					\
+	/* r7 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r7 = r0;					\
+	/* r6 = ktime_get_ns() */			\
+	call %[bpf_ktime_get_ns];			\
+	r6 = r0;					\
+	/* if r6 > r7 goto +1    ; no new information about the state is derived from\
+	 *                       ; this check, thus produced verifier states differ\
+	 *                       ; only in 'insn_idx'	\
+	 * r9 = r8               ; optionally share ID between r9 and r8\
+	 */						\
+	if r6 > r7 goto l0_%=;				\
+	r9 = r8;					\
+l0_%=:	/* if r9 == 0 goto <exit> */			\
+	if r9 == 0 goto l1_%=;				\
+	/* read map value via r8, this is not always	\
+	 * safe because r8 might be not equal to r9.	\
+	 */						\
+	r0 = *(u64*)(r8 + 0);				\
+l1_%=:	/* exit 0 */					\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_ktime_get_ns),
+	  __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_value_ptr_arith.c b/tools/testing/selftests/bpf/progs/verifier_value_ptr_arith.c
new file mode 100644
index 000000000000..af7938ce56cb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_value_ptr_arith.c
@@ -0,0 +1,1441 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/value_ptr_arith.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <errno.h>
+#include "bpf_misc.h"
+
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct test_val);
+} map_array_48b SEC(".maps");
+
+struct other_val {
+	long long foo;
+	long long bar;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct other_val);
+} map_hash_16b SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, struct test_val);
+} map_hash_48b SEC(".maps");
+
+SEC("socket")
+__description("map access: known scalar += value_ptr unknown vs const")
+__success __failure_unpriv
+__msg_unpriv("R1 tried to add from different maps, paths or scalars")
+__retval(1)
+__naked void value_ptr_unknown_vs_const(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 6;						\
+	r1 = -r1;					\
+	r1 &= 0x7;					\
+	goto l4_%=;					\
+l3_%=:	r1 = 3;						\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr const vs unknown")
+__success __failure_unpriv
+__msg_unpriv("R1 tried to add from different maps, paths or scalars")
+__retval(1)
+__naked void value_ptr_const_vs_unknown(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 3;						\
+	goto l4_%=;					\
+l3_%=:	r1 = 6;						\
+	r1 = -r1;					\
+	r1 &= 0x7;					\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr const vs const (ne)")
+__success __failure_unpriv
+__msg_unpriv("R1 tried to add from different maps, paths or scalars")
+__retval(1)
+__naked void ptr_const_vs_const_ne(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 3;						\
+	goto l4_%=;					\
+l3_%=:	r1 = 5;						\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr const vs const (eq)")
+__success __success_unpriv __retval(1)
+__naked void ptr_const_vs_const_eq(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 5;						\
+	goto l4_%=;					\
+l3_%=:	r1 = 5;						\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr unknown vs unknown (eq)")
+__success __success_unpriv __retval(1)
+__naked void ptr_unknown_vs_unknown_eq(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 6;						\
+	r1 = -r1;					\
+	r1 &= 0x7;					\
+	goto l4_%=;					\
+l3_%=:	r1 = 6;						\
+	r1 = -r1;					\
+	r1 &= 0x7;					\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr unknown vs unknown (lt)")
+__success __failure_unpriv
+__msg_unpriv("R1 tried to add from different maps, paths or scalars")
+__retval(1)
+__naked void ptr_unknown_vs_unknown_lt(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	call %[bpf_get_prandom_u32];			\
+	r9 = r0;					\
+	r1 = r8;					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 6;						\
+	r1 = r9;					\
+	r1 &= 0x3;					\
+	goto l4_%=;					\
+l3_%=:	r1 = 6;						\
+	r1 = r9;					\
+	r1 &= 0x7;					\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len)),
+	  __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr unknown vs unknown (gt)")
+__success __failure_unpriv
+__msg_unpriv("R1 tried to add from different maps, paths or scalars")
+__retval(1)
+__naked void ptr_unknown_vs_unknown_gt(void)
+{
+	asm volatile ("					\
+	r8 = r1;					\
+	call %[bpf_get_prandom_u32];			\
+	r9 = r0;					\
+	r1 = r8;					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r4 = *(u8*)(r0 + 0);				\
+	if r4 == 1 goto l3_%=;				\
+	r1 = 6;						\
+	r1 = r9;					\
+	r1 &= 0x7;					\
+	goto l4_%=;					\
+l3_%=:	r1 = 6;						\
+	r1 = r9;					\
+	r1 &= 0x3;					\
+l4_%=:	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len)),
+	  __imm(bpf_get_prandom_u32)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr from different maps")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_from_different_maps(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r1 = 4;						\
+	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar from different maps")
+__success __failure_unpriv
+__msg_unpriv("R0 min value is outside of the allowed memory range")
+__retval(1)
+__naked void known_scalar_from_different_maps(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_16b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r1 = 4;						\
+	r0 -= r1;					\
+	r0 += r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_16b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr from different maps, but same value properties")
+__success __success_unpriv __retval(1)
+__naked void maps_but_same_value_properties(void)
+{
+	asm volatile ("					\
+	r0 = *(u32*)(r1 + %[__sk_buff_len]);		\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	if r0 == 1 goto l0_%=;				\
+	r1 = %[map_hash_48b] ll;			\
+	if r0 != 1 goto l1_%=;				\
+l0_%=:	r1 = %[map_array_48b] ll;			\
+l1_%=:	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l2_%=;				\
+	r1 = 4;						\
+	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l2_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_addr(map_hash_48b),
+	  __imm_const(__sk_buff_len, offsetof(struct __sk_buff, len))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: mixing value pointer and scalar, 1")
+__success __failure_unpriv
+__msg_unpriv("R2 tried to add from different maps, paths or scalars, pointer arithmetic with it prohibited for !root")
+__retval(0)
+__naked void value_pointer_and_scalar_1(void)
+{
+	asm volatile ("					\
+	/* load map value pointer into r0 and r2 */	\
+	r0 = 1;						\
+	r1 = %[map_array_48b] ll;			\
+	r2 = r10;					\
+	r2 += -16;					\
+	r6 = 0;						\
+	*(u64*)(r10 - 16) = r6;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	/* load some number from the map into r1 */	\
+	r1 = *(u8*)(r0 + 0);				\
+	/* depending on r1, branch: */			\
+	if r1 != 0 goto l1_%=;				\
+	/* branch A */					\
+	r2 = r0;					\
+	r3 = 0;						\
+	goto l2_%=;					\
+l1_%=:	/* branch B */					\
+	r2 = 0;						\
+	r3 = 0x100000;					\
+l2_%=:	/* common instruction */			\
+	r2 += r3;					\
+	/* depending on r1, branch: */			\
+	if r1 != 0 goto l3_%=;				\
+	/* branch A */					\
+	goto l4_%=;					\
+l3_%=:	/* branch B */					\
+	r0 = 0x13371337;				\
+	/* verifier follows fall-through */		\
+	/* unpriv: nospec (inserted to prevent `R2 pointer comparison prohibited`) */\
+	if r2 != 0x100000 goto l4_%=;			\
+	r0 = 0;						\
+	exit;						\
+l4_%=:	/* fake-dead code; targeted from branch A to	\
+	 * prevent dead code sanitization		\
+	 */						\
+	r0 = *(u8*)(r0 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: mixing value pointer and scalar, 2")
+__success __failure_unpriv
+__msg_unpriv("R2 tried to add from different maps, paths or scalars, pointer arithmetic with it prohibited for !root")
+__retval(0)
+__naked void value_pointer_and_scalar_2(void)
+{
+	asm volatile ("					\
+	/* load map value pointer into r0 and r2 */	\
+	r0 = 1;						\
+	r1 = %[map_array_48b] ll;			\
+	r2 = r10;					\
+	r2 += -16;					\
+	r6 = 0;						\
+	*(u64*)(r10 - 16) = r6;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	/* load some number from the map into r1 */	\
+	r1 = *(u8*)(r0 + 0);				\
+	/* depending on r1, branch: */			\
+	if r1 == 0 goto l1_%=;				\
+	/* branch A */					\
+	r2 = 0;						\
+	r3 = 0x100000;					\
+	goto l2_%=;					\
+l1_%=:	/* branch B */					\
+	r2 = r0;					\
+	r3 = 0;						\
+l2_%=:	/* common instruction */			\
+	r2 += r3;					\
+	/* depending on r1, branch: */			\
+	if r1 != 0 goto l3_%=;				\
+	/* branch A */					\
+	goto l4_%=;					\
+l3_%=:	/* branch B */					\
+	r0 = 0x13371337;				\
+	/* verifier follows fall-through */		\
+	if r2 != 0x100000 goto l4_%=;			\
+	r0 = 0;						\
+	exit;						\
+l4_%=:	/* fake-dead code; targeted from branch A to	\
+	 * prevent dead code sanitization, rejected	\
+	 * via branch B however				\
+	 */						\
+	/* unpriv: nospec (inserted to prevent `R0 invalid mem access 'scalar'`) */\
+	r0 = *(u8*)(r0 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sanitation: alu with different scalars 1")
+__success __success_unpriv __retval(0x100000)
+__naked void alu_with_different_scalars_1(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	r1 = %[map_array_48b] ll;			\
+	r2 = r10;					\
+	r2 += -16;					\
+	r6 = 0;						\
+	*(u64*)(r10 - 16) = r6;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = *(u32*)(r0 + 0);				\
+	if r1 == 0 goto l1_%=;				\
+	r2 = 0;						\
+	r3 = 0x100000;					\
+	goto l2_%=;					\
+l1_%=:	r2 = 42;					\
+	r3 = 0x100001;					\
+l2_%=:	r2 += r3;					\
+	r0 = r2;					\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sanitation: alu with different scalars 2")
+__success __success_unpriv __retval(0)
+__naked void alu_with_different_scalars_2(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	r1 = %[map_array_48b] ll;			\
+	r6 = r1;					\
+	r2 = r10;					\
+	r2 += -16;					\
+	r7 = 0;						\
+	*(u64*)(r10 - 16) = r7;				\
+	call %[bpf_map_delete_elem];			\
+	r7 = r0;					\
+	r1 = r6;					\
+	r2 = r10;					\
+	r2 += -16;					\
+	call %[bpf_map_delete_elem];			\
+	r6 = r0;					\
+	r8 = r6;					\
+	r8 += r7;					\
+	r0 = r8;					\
+	r0 += %[einval];				\
+	r0 += %[einval];				\
+	exit;						\
+"	:
+	: __imm(bpf_map_delete_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_const(einval, EINVAL)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("sanitation: alu with different scalars 3")
+__success __success_unpriv __retval(0)
+__naked void alu_with_different_scalars_3(void)
+{
+	asm volatile ("					\
+	r0 = %[einval];					\
+	r0 *= -1;					\
+	r7 = r0;					\
+	r0 = %[einval];					\
+	r0 *= -1;					\
+	r6 = r0;					\
+	r8 = r6;					\
+	r8 += r7;					\
+	r0 = r8;					\
+	r0 += %[einval];				\
+	r0 += %[einval];				\
+	exit;						\
+"	:
+	: __imm_const(einval, EINVAL)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, upper oob arith, test 1")
+__success __failure_unpriv
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__retval(1)
+__naked void upper_oob_arith_test_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 48;					\
+	r0 += r1;					\
+	r0 -= r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, upper oob arith, test 2")
+__success __failure_unpriv
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__retval(1)
+__naked void upper_oob_arith_test_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 49;					\
+	r0 += r1;					\
+	r0 -= r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, upper oob arith, test 3")
+__success __success_unpriv __retval(1)
+__naked void upper_oob_arith_test_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 47;					\
+	r0 += r1;					\
+	r0 -= r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar, lower oob arith, test 1")
+__failure __msg("R0 min value is outside of the allowed memory range")
+__failure_unpriv
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__naked void lower_oob_arith_test_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 47;					\
+	r0 += r1;					\
+	r1 = 48;					\
+	r0 -= r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar, lower oob arith, test 2")
+__success __failure_unpriv
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__retval(1)
+__naked void lower_oob_arith_test_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 47;					\
+	r0 += r1;					\
+	r1 = 48;					\
+	r0 -= r1;					\
+	r1 = 1;						\
+	r0 += r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar, lower oob arith, test 3")
+__success __success_unpriv __retval(1)
+__naked void lower_oob_arith_test_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 47;					\
+	r0 += r1;					\
+	r1 = 47;					\
+	r0 -= r1;					\
+	r0 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar += value_ptr")
+__success __success_unpriv __retval(1)
+__naked void access_known_scalar_value_ptr_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 4;						\
+	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 1")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_known_scalar_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 4;						\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 2")
+__failure __msg("invalid access to map value")
+__failure_unpriv
+__naked void value_ptr_known_scalar_2_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 49;					\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 3")
+__failure __msg("invalid access to map value")
+__failure_unpriv
+__naked void value_ptr_known_scalar_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = -1;					\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 4")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_known_scalar_4(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 5;						\
+	r0 += r1;					\
+	r1 = -2;					\
+	r0 += r1;					\
+	r1 = -1;					\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 5")
+__success __success_unpriv __retval(0xabcdef12)
+__naked void value_ptr_known_scalar_5(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = %[__imm_0];				\
+	r1 += r0;					\
+	r0 = *(u32*)(r1 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_const(__imm_0, (6 + 1) * sizeof(int))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += known scalar, 6")
+__success __success_unpriv __retval(0xabcdef12)
+__naked void value_ptr_known_scalar_6(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = %[__imm_0];				\
+	r0 += r1;					\
+	r1 = %[__imm_1];				\
+	r0 += r1;					\
+	r0 = *(u32*)(r0 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b),
+	  __imm_const(__imm_0, (3 + 1) * sizeof(int)),
+	  __imm_const(__imm_1, 3 * sizeof(int))
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += N, value_ptr -= N known scalar")
+__success __success_unpriv __retval(0x12345678)
+__naked void value_ptr_n_known_scalar(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	w1 = 0x12345678;				\
+	*(u32*)(r0 + 0) = r1;				\
+	r0 += 2;					\
+	r1 = 2;						\
+	r0 -= r1;					\
+	r0 = *(u32*)(r0 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: unknown scalar += value_ptr, 1")
+__success __success_unpriv __retval(1)
+__naked void unknown_scalar_value_ptr_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0xf;					\
+	r1 += r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: unknown scalar += value_ptr, 2")
+__success __success_unpriv __retval(0xabcdef12) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void unknown_scalar_value_ptr_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	r1 &= 31;					\
+	r1 += r0;					\
+	r0 = *(u32*)(r1 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: unknown scalar += value_ptr, 3")
+__success __failure_unpriv
+__msg_unpriv("R0 pointer arithmetic of map value goes out of range")
+__retval(0xabcdef12) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void unknown_scalar_value_ptr_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = -1;					\
+	r0 += r1;					\
+	r1 = 1;						\
+	r0 += r1;					\
+	r1 = *(u32*)(r0 + 0);				\
+	r1 &= 31;					\
+	r1 += r0;					\
+	r0 = *(u32*)(r1 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: unknown scalar += value_ptr, 4")
+__failure __msg("R1 max value is outside of the allowed memory range")
+__msg_unpriv("R1 pointer arithmetic of map value goes out of range")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void unknown_scalar_value_ptr_4(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 19;					\
+	r0 += r1;					\
+	r1 = *(u32*)(r0 + 0);				\
+	r1 &= 31;					\
+	r1 += r0;					\
+	r0 = *(u32*)(r1 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += unknown scalar, 1")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_unknown_scalar_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0xf;					\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += unknown scalar, 2")
+__success __success_unpriv __retval(0xabcdef12) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void value_ptr_unknown_scalar_2_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u32*)(r0 + 0);				\
+	r1 &= 31;					\
+	r0 += r1;					\
+	r0 = *(u32*)(r0 + 0);				\
+l0_%=:	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += unknown scalar, 3")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_unknown_scalar_3(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u64*)(r0 + 0);				\
+	r2 = *(u64*)(r0 + 8);				\
+	r3 = *(u64*)(r0 + 16);				\
+	r1 &= 0xf;					\
+	r3 &= 1;					\
+	r3 |= 1;					\
+	if r2 > r3 goto l0_%=;				\
+	r0 += r3;					\
+	r0 = *(u8*)(r0 + 0);				\
+	r0 = 1;						\
+l1_%=:	exit;						\
+l0_%=:	r0 = 2;						\
+	goto l1_%=;					\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr += value_ptr")
+__failure __msg("R0 pointer += pointer prohibited")
+__failure_unpriv
+__naked void access_value_ptr_value_ptr_1(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 += r0;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: known scalar -= value_ptr")
+__failure __msg("R1 tried to subtract pointer from scalar")
+__failure_unpriv
+__naked void access_known_scalar_value_ptr_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 4;						\
+	r1 -= r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar")
+__failure __msg("R0 min value is outside of the allowed memory range")
+__failure_unpriv
+__naked void access_value_ptr_known_scalar(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 4;						\
+	r0 -= r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= known scalar, 2")
+__success __success_unpriv __retval(1)
+__naked void value_ptr_known_scalar_2_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = 6;						\
+	r2 = 4;						\
+	r0 += r1;					\
+	r0 -= r2;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: unknown scalar -= value_ptr")
+__failure __msg("R1 tried to subtract pointer from scalar")
+__failure_unpriv
+__naked void access_unknown_scalar_value_ptr(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0xf;					\
+	r1 -= r0;					\
+	r0 = *(u8*)(r1 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= unknown scalar")
+__failure __msg("R0 min value is negative")
+__failure_unpriv
+__naked void access_value_ptr_unknown_scalar(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0xf;					\
+	r0 -= r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= unknown scalar, 2")
+__success __success_unpriv
+__retval(1)
+#ifdef SPEC_V1
+__xlated_unpriv("r1 &= 7")
+__xlated_unpriv("nospec") /* inserted to prevent `R0 pointer arithmetic of map value goes out of range` */
+__xlated_unpriv("r0 -= r1")
+#endif
+__naked void value_ptr_unknown_scalar_2_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0xf;					\
+	r1 |= 0x7;					\
+	r0 += r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+	r1 &= 0x7;					\
+	r0 -= r1;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: value_ptr -= value_ptr")
+__failure __msg("R0 invalid mem access 'scalar'")
+__msg_unpriv("R0 pointer -= pointer prohibited")
+__naked void access_value_ptr_value_ptr_2(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 == 0 goto l0_%=;				\
+	r0 -= r0;					\
+	r1 = *(u8*)(r0 + 0);				\
+l0_%=:	r0 = 1;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("socket")
+__description("map access: trying to leak tainted dst reg")
+__failure __msg("math between map_value pointer and 4294967295 is not allowed")
+__failure_unpriv
+__naked void to_leak_tainted_dst_reg(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_array_48b] ll;			\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r2 = r0;					\
+	w1 = 0xFFFFFFFF;				\
+	w1 = w1;					\
+	r2 -= r1;					\
+	*(u64*)(r0 + 0) = r2;				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_array_48b)
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("32bit pkt_ptr -= scalar")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void _32bit_pkt_ptr_scalar(void)
+{
+	asm volatile ("					\
+	r8 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r7 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r6 = r7;					\
+	r6 += 40;					\
+	if r6 > r8 goto l0_%=;				\
+	w4 = w7;					\
+	w6 -= w4;					\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("32bit scalar -= pkt_ptr")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void _32bit_scalar_pkt_ptr(void)
+{
+	asm volatile ("					\
+	r8 = *(u32*)(r1 + %[__sk_buff_data_end]);	\
+	r7 = *(u32*)(r1 + %[__sk_buff_data]);		\
+	r6 = r7;					\
+	r6 += 40;					\
+	if r6 > r8 goto l0_%=;				\
+	w4 = w6;					\
+	w4 -= w7;					\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(__sk_buff_data, offsetof(struct __sk_buff, data)),
+	  __imm_const(__sk_buff_data_end, offsetof(struct __sk_buff, data_end))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_var_off.c b/tools/testing/selftests/bpf/progs/verifier_var_off.c
new file mode 100644
index 000000000000..f345466bca68
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_var_off.c
@@ -0,0 +1,418 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/var_off.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("lwt_in")
+__description("variable-offset ctx access")
+__failure __msg("variable ctx access var_off=(0x0; 0x4)")
+__naked void variable_offset_ctx_access(void)
+{
+	asm volatile ("					\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned */		\
+	r2 &= 4;					\
+	/* add it to skb.  We now have either &skb->len or\
+	 * &skb->pkt_type, but we don't know which	\
+	 */						\
+	r1 += r2;					\
+	/* dereference it */				\
+	r0 = *(u32*)(r1 + 0);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("variable-offset stack read, priv vs unpriv")
+__success __failure_unpriv
+__msg_unpriv("R2 variable stack access prohibited for !root")
+__retval(0)
+__naked void stack_read_priv_vs_unpriv(void)
+{
+	asm volatile ("					\
+	/* Fill the top 8 bytes of the stack */		\
+	r0 = 0;						\
+	*(u64*)(r10 - 8) = r0;				\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned */		\
+	r2 &= 4;					\
+	r2 -= 8;					\
+	/* add it to fp.  We now have either fp-4 or fp-8, but\
+	 * we don't know which				\
+	 */						\
+	r2 += r10;					\
+	/* dereference it for a stack read */		\
+	r0 = *(u32*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("variable-offset stack read, uninitialized")
+__success
+__failure_unpriv __msg_unpriv("R2 variable stack access prohibited for !root")
+__naked void variable_offset_stack_read_uninitialized(void)
+{
+	asm volatile ("					\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned */		\
+	r2 &= 4;					\
+	r2 -= 8;					\
+	/* add it to fp.  We now have either fp-4 or fp-8, but\
+	 * we don't know which				\
+	 */						\
+	r2 += r10;					\
+	/* dereference it for a stack read */		\
+	r0 = *(u32*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("variable-offset stack write, priv vs unpriv")
+__success
+/* Check that the maximum stack depth is correctly maintained according to the
+ * maximum possible variable offset.
+ */
+__log_level(4) __msg("stack depth 16")
+__failure_unpriv
+/* Variable stack access is rejected for unprivileged.
+ */
+__msg_unpriv("R2 variable stack access prohibited for !root")
+__retval(0)
+__naked void stack_write_priv_vs_unpriv(void)
+{
+	asm volatile ("                               \
+	/* Get an unknown value */                    \
+	r2 = *(u32*)(r1 + 0);                         \
+	/* Make it small and 8-byte aligned */        \
+	r2 &= 8;                                      \
+	r2 -= 16;                                     \
+	/* Add it to fp. We now have either fp-8 or   \
+	 * fp-16, but we don't know which             \
+	 */                                           \
+	r2 += r10;                                    \
+	/* Dereference it for a stack write */        \
+	r0 = 0;                                       \
+	*(u64*)(r2 + 0) = r0;                         \
+	exit;                                         \
+"	::: __clobber_all);
+}
+
+/* Similar to the previous test, but this time also perform a read from the
+ * address written to with a variable offet. The read is allowed, showing that,
+ * after a variable-offset write, a privileged program can read the slots that
+ * were in the range of that write (even if the verifier doesn't actually know if
+ * the slot being read was really written to or not.
+ *
+ * Despite this test being mostly a superset, the previous test is also kept for
+ * the sake of it checking the stack depth in the case where there is no read.
+ */
+SEC("socket")
+__description("variable-offset stack write followed by read")
+__success
+/* Check that the maximum stack depth is correctly maintained according to the
+ * maximum possible variable offset.
+ */
+__log_level(4) __msg("stack depth 16")
+__failure_unpriv
+__msg_unpriv("R2 variable stack access prohibited for !root")
+__retval(0)
+__naked void stack_write_followed_by_read(void)
+{
+	asm volatile ("					\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 8-byte aligned */		\
+	r2 &= 8;					\
+	r2 -= 16;					\
+	/* Add it to fp.  We now have either fp-8 or fp-16, but\
+	 * we don't know which				\
+	 */						\
+	r2 += r10;					\
+	/* Dereference it for a stack write */		\
+	r0 = 0;						\
+	*(u64*)(r2 + 0) = r0;				\
+	/* Now read from the address we just wrote. */ \
+	r3 = *(u64*)(r2 + 0);				\
+	r0 = 0;						\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("socket")
+__description("variable-offset stack write clobbers spilled regs")
+__failure
+/* In the privileged case, dereferencing a spilled-and-then-filled
+ * register is rejected because the previous variable offset stack
+ * write might have overwritten the spilled pointer (i.e. we lose track
+ * of the spilled register when we analyze the write).
+ */
+__msg("R2 invalid mem access 'scalar'")
+__failure_unpriv
+/* The unprivileged case is not too interesting; variable
+ * stack access is rejected.
+ */
+__msg_unpriv("R2 variable stack access prohibited for !root")
+__naked void stack_write_clobbers_spilled_regs(void)
+{
+	asm volatile ("					\
+	/* Dummy instruction; needed because we need to patch the next one\
+	 * and we can't patch the first instruction.	\
+	 */						\
+	r6 = 0;						\
+	/* Make R0 a map ptr */				\
+	r0 = %[map_hash_8b] ll;				\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 8-byte aligned */		\
+	r2 &= 8;					\
+	r2 -= 16;					\
+	/* Add it to fp. We now have either fp-8 or fp-16, but\
+	 * we don't know which.				\
+	 */						\
+	r2 += r10;					\
+	/* Spill R0(map ptr) into stack */		\
+	*(u64*)(r10 - 8) = r0;				\
+	/* Dereference the unknown value for a stack write */\
+	r0 = 0;						\
+	*(u64*)(r2 + 0) = r0;				\
+	/* Fill the register back into R2 */		\
+	r2 = *(u64*)(r10 - 8);				\
+	/* Try to dereference R2 for a memory load */	\
+	r0 = *(u64*)(r2 + 8);				\
+	exit;						\
+"	:
+	: __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("sockops")
+__description("indirect variable-offset stack access, unbounded")
+__failure __msg("invalid unbounded variable-offset write to stack R4")
+__naked void variable_offset_stack_access_unbounded(void)
+{
+	asm volatile ("					\
+	r2 = 6;						\
+	r3 = 28;					\
+	/* Fill the top 16 bytes of the stack. */	\
+	r4 = 0;						\
+	*(u64*)(r10 - 16) = r4;				\
+	r4 = 0;						\
+	*(u64*)(r10 - 8) = r4;				\
+	/* Get an unknown value. */			\
+	r4 = *(u64*)(r1 + %[bpf_sock_ops_bytes_received]);\
+	/* Check the lower bound but don't check the upper one. */\
+	if r4 s< 0 goto l0_%=;				\
+	/* Point the lower bound to initialized stack. Offset is now in range\
+	 * from fp-16 to fp+0x7fffffffffffffef, i.e. max value is unbounded.\
+	 */						\
+	r4 -= 16;					\
+	r4 += r10;					\
+	r5 = 8;						\
+	/* Dereference it indirectly. */		\
+	call %[bpf_getsockopt];				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_getsockopt),
+	  __imm_const(bpf_sock_ops_bytes_received, offsetof(struct bpf_sock_ops, bytes_received))
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("indirect variable-offset stack access, max out of bound")
+__failure __msg("invalid variable-offset read from stack R2")
+__naked void access_max_out_of_bound(void)
+{
+	asm volatile ("					\
+	/* Fill the top 8 bytes of the stack */		\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned */		\
+	r2 &= 4;					\
+	r2 -= 8;					\
+	/* add it to fp.  We now have either fp-4 or fp-8, but\
+	 * we don't know which				\
+	 */						\
+	r2 += r10;					\
+	/* dereference it indirectly */			\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+/* Similar to the test above, but this time check the special case of a
+ * zero-sized stack access. We used to have a bug causing crashes for zero-sized
+ * out-of-bounds accesses.
+ */
+SEC("socket")
+__description("indirect variable-offset stack access, zero-sized, max out of bound")
+__failure __msg("invalid variable-offset write to stack R1")
+__naked void zero_sized_access_max_out_of_bound(void)
+{
+	asm volatile ("                      \
+	r0 = 0;                              \
+	/* Fill some stack */                \
+	*(u64*)(r10 - 16) = r0;              \
+	*(u64*)(r10 - 8) = r0;               \
+	/* Get an unknown value */           \
+	r1 = *(u32*)(r1 + 0);                \
+	r1 &= 63;                            \
+	r1 += -16;                           \
+	/* r1 is now anywhere in [-16,48) */ \
+	r1 += r10;                           \
+	r2 = 0;                              \
+	r3 = 0;                              \
+	call %[bpf_probe_read_kernel];       \
+	exit;                                \
+"	:
+	: __imm(bpf_probe_read_kernel)
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("indirect variable-offset stack access, min out of bound")
+__failure __msg("invalid variable-offset read from stack R2")
+__naked void access_min_out_of_bound(void)
+{
+	asm volatile ("					\
+	/* Fill the top 8 bytes of the stack */		\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned */		\
+	r2 &= 4;					\
+	r2 -= 516;					\
+	/* add it to fp.  We now have either fp-516 or fp-512, but\
+	 * we don't know which				\
+	 */						\
+	r2 += r10;					\
+	/* dereference it indirectly */			\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("indirect variable-offset stack access, min_off < min_initialized")
+__success
+__failure_unpriv __msg_unpriv("R2 variable stack access prohibited for !root")
+__naked void access_min_off_min_initialized(void)
+{
+	asm volatile ("					\
+	/* Fill only the top 8 bytes of the stack. */	\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	/* Get an unknown value */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned. */		\
+	r2 &= 4;					\
+	r2 -= 16;					\
+	/* Add it to fp.  We now have either fp-12 or fp-16, but we don't know\
+	 * which. fp-16 size 8 is partially uninitialized stack.\
+	 */						\
+	r2 += r10;					\
+	/* Dereference it indirectly. */		\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("cgroup/skb")
+__description("indirect variable-offset stack access, priv vs unpriv")
+__success __failure_unpriv
+__msg_unpriv("R2 variable stack access prohibited for !root")
+__retval(0)
+__naked void stack_access_priv_vs_unpriv(void)
+{
+	asm volatile ("					\
+	/* Fill the top 16 bytes of the stack. */	\
+	r2 = 0;						\
+	*(u64*)(r10 - 16) = r2;				\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	/* Get an unknown value. */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned. */		\
+	r2 &= 4;					\
+	r2 -= 16;					\
+	/* Add it to fp.  We now have either fp-12 or fp-16, we don't know\
+	 * which, but either way it points to initialized stack.\
+	 */						\
+	r2 += r10;					\
+	/* Dereference it indirectly. */		\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("lwt_in")
+__description("indirect variable-offset stack access, ok")
+__success __retval(0)
+__naked void variable_offset_stack_access_ok(void)
+{
+	asm volatile ("					\
+	/* Fill the top 16 bytes of the stack. */	\
+	r2 = 0;						\
+	*(u64*)(r10 - 16) = r2;				\
+	r2 = 0;						\
+	*(u64*)(r10 - 8) = r2;				\
+	/* Get an unknown value. */			\
+	r2 = *(u32*)(r1 + 0);				\
+	/* Make it small and 4-byte aligned. */		\
+	r2 &= 4;					\
+	r2 -= 16;					\
+	/* Add it to fp.  We now have either fp-12 or fp-16, we don't know\
+	 * which, but either way it points to initialized stack.\
+	 */						\
+	r2 += r10;					\
+	/* Dereference it indirectly. */		\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_vfs_accept.c b/tools/testing/selftests/bpf/progs/verifier_vfs_accept.c
new file mode 100644
index 000000000000..55398c04290a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_vfs_accept.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC. */
+
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+static char buf[64];
+
+SEC("lsm.s/file_open")
+__success
+int BPF_PROG(get_task_exe_file_and_put_kfunc_from_current_sleepable)
+{
+	struct file *acquired;
+
+	acquired = bpf_get_task_exe_file(bpf_get_current_task_btf());
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm/file_open")
+__success
+int BPF_PROG(get_task_exe_file_and_put_kfunc_from_current_non_sleepable, struct file *file)
+{
+	struct file *acquired;
+
+	acquired = bpf_get_task_exe_file(bpf_get_current_task_btf());
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm.s/task_alloc")
+__success
+int BPF_PROG(get_task_exe_file_and_put_kfunc_from_argument,
+	     struct task_struct *task)
+{
+	struct file *acquired;
+
+	acquired = bpf_get_task_exe_file(task);
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm.s/inode_getattr")
+__success
+int BPF_PROG(path_d_path_from_path_argument, struct path *path)
+{
+	int ret;
+
+	ret = bpf_path_d_path(path, buf, sizeof(buf));
+	__sink(ret);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__success
+int BPF_PROG(path_d_path_from_file_argument, struct file *file)
+{
+	int ret;
+	const struct path *path;
+
+	/* The f_path member is a path which is embedded directly within a
+	 * file. Therefore, a pointer to such embedded members are still
+	 * recognized by the BPF verifier as being PTR_TRUSTED as it's
+	 * essentially PTR_TRUSTED w/ a non-zero fixed offset.
+	 */
+	path = &file->f_path;
+	ret = bpf_path_d_path(path, buf, sizeof(buf));
+	__sink(ret);
+	return 0;
+}
+
+SEC("lsm.s/inode_rename")
+__success
+int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry,
+	     struct inode *new_dir, struct dentry *new_dentry,
+	     unsigned int flags)
+{
+	struct inode *inode = new_dentry->d_inode;
+	ino_t ino;
+
+	if (!inode)
+		return 0;
+	ino = inode->i_ino;
+	if (ino == 0)
+		return -EACCES;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_vfs_reject.c b/tools/testing/selftests/bpf/progs/verifier_vfs_reject.c
new file mode 100644
index 000000000000..4b392c6c8fc4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_vfs_reject.c
@@ -0,0 +1,176 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Google LLC. */
+
+#include <vmlinux.h>
+#include <errno.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <linux/limits.h>
+
+#include "bpf_misc.h"
+#include "bpf_experimental.h"
+
+static char buf[PATH_MAX];
+
+SEC("lsm.s/file_open")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(get_task_exe_file_kfunc_null)
+{
+	struct file *acquired;
+
+	/* Can't pass a NULL pointer to bpf_get_task_exe_file(). */
+	acquired = bpf_get_task_exe_file(NULL);
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm.s/inode_getxattr")
+__failure __msg("arg#0 pointer type STRUCT task_struct must point to scalar, or struct with scalar")
+int BPF_PROG(get_task_exe_file_kfunc_fp)
+{
+	u64 x;
+	struct file *acquired;
+	struct task_struct *task;
+
+	task = (struct task_struct *)&x;
+	/* Can't pass random frame pointer to bpf_get_task_exe_file(). */
+	acquired = bpf_get_task_exe_file(task);
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("R1 must be referenced or trusted")
+int BPF_PROG(get_task_exe_file_kfunc_untrusted)
+{
+	struct file *acquired;
+	struct task_struct *parent;
+
+	/* Walking a trusted struct task_struct returned from
+	 * bpf_get_current_task_btf() yields an untrusted pointer.
+	 */
+	parent = bpf_get_current_task_btf()->parent;
+	/* Can't pass untrusted pointer to bpf_get_task_exe_file(). */
+	acquired = bpf_get_task_exe_file(parent);
+	if (!acquired)
+		return 0;
+
+	bpf_put_file(acquired);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("Unreleased reference")
+int BPF_PROG(get_task_exe_file_kfunc_unreleased)
+{
+	struct file *acquired;
+
+	acquired = bpf_get_task_exe_file(bpf_get_current_task_btf());
+	if (!acquired)
+		return 0;
+
+	/* Acquired but never released. */
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("release kernel function bpf_put_file expects")
+int BPF_PROG(put_file_kfunc_unacquired, struct file *file)
+{
+	/* Can't release an unacquired pointer. */
+	bpf_put_file(file);
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("Possibly NULL pointer passed to trusted arg0")
+int BPF_PROG(path_d_path_kfunc_null)
+{
+	/* Can't pass NULL value to bpf_path_d_path() kfunc. */
+	bpf_path_d_path(NULL, buf, sizeof(buf));
+	return 0;
+}
+
+SEC("lsm.s/task_alloc")
+__failure __msg("R1 must be referenced or trusted")
+int BPF_PROG(path_d_path_kfunc_untrusted_from_argument, struct task_struct *task)
+{
+	struct path *root;
+
+	/* Walking a trusted argument typically yields an untrusted
+	 * pointer. This is one example of that.
+	 */
+	root = &task->fs->root;
+	bpf_path_d_path(root, buf, sizeof(buf));
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("R1 must be referenced or trusted")
+int BPF_PROG(path_d_path_kfunc_untrusted_from_current)
+{
+	struct path *pwd;
+	struct task_struct *current;
+
+	current = bpf_get_current_task_btf();
+	/* Walking a trusted pointer returned from bpf_get_current_task_btf()
+	 * yields an untrusted pointer.
+	 */
+	pwd = &current->fs->pwd;
+	bpf_path_d_path(pwd, buf, sizeof(buf));
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("kernel function bpf_path_d_path args#0 expected pointer to STRUCT path but R1 has a pointer to STRUCT file")
+int BPF_PROG(path_d_path_kfunc_type_mismatch, struct file *file)
+{
+	bpf_path_d_path((struct path *)&file->f_task_work, buf, sizeof(buf));
+	return 0;
+}
+
+SEC("lsm.s/file_open")
+__failure __msg("invalid access to map value, value_size=4096 off=0 size=8192")
+int BPF_PROG(path_d_path_kfunc_invalid_buf_sz, struct file *file)
+{
+	/* bpf_path_d_path() enforces a constraint on the buffer size supplied
+	 * by the BPF LSM program via the __sz annotation. buf here is set to
+	 * PATH_MAX, so let's ensure that the BPF verifier rejects BPF_PROG_LOAD
+	 * attempts if the supplied size and the actual size of the buffer
+	 * mismatches.
+	 */
+	bpf_path_d_path(&file->f_path, buf, PATH_MAX * 2);
+	return 0;
+}
+
+SEC("fentry/vfs_open")
+__failure __msg("calling kernel function bpf_path_d_path is not allowed")
+int BPF_PROG(path_d_path_kfunc_non_lsm, struct path *path, struct file *f)
+{
+	/* Calling bpf_path_d_path() from a non-LSM BPF program isn't permitted.
+	 */
+	bpf_path_d_path(path, buf, sizeof(buf));
+	return 0;
+}
+
+SEC("lsm.s/inode_rename")
+__failure __msg("invalid mem access 'trusted_ptr_or_null_'")
+int BPF_PROG(inode_rename, struct inode *old_dir, struct dentry *old_dentry,
+	     struct inode *new_dir, struct dentry *new_dentry,
+	     unsigned int flags)
+{
+	struct inode *inode = new_dentry->d_inode;
+	ino_t ino;
+
+	ino = inode->i_ino;
+	if (ino == 0)
+		return -EACCES;
+	return 0;
+}
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_xadd.c b/tools/testing/selftests/bpf/progs/verifier_xadd.c
new file mode 100644
index 000000000000..05a0a55adb45
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_xadd.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/xadd.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, long long);
+	__type(value, long long);
+} map_hash_8b SEC(".maps");
+
+SEC("tc")
+__description("xadd/w check unaligned stack")
+__failure __msg("misaligned stack access off")
+__naked void xadd_w_check_unaligned_stack(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	*(u64*)(r10 - 8) = r0;				\
+	lock *(u32 *)(r10 - 7) += w0;			\
+	r0 = *(u64*)(r10 - 8);				\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("xadd/w check unaligned map")
+__failure __msg("misaligned value access off")
+__naked void xadd_w_check_unaligned_map(void)
+{
+	asm volatile ("					\
+	r1 = 0;						\
+	*(u64*)(r10 - 8) = r1;				\
+	r2 = r10;					\
+	r2 += -8;					\
+	r1 = %[map_hash_8b] ll;				\
+	call %[bpf_map_lookup_elem];			\
+	if r0 != 0 goto l0_%=;				\
+	exit;						\
+l0_%=:	r1 = 1;						\
+	lock *(u32 *)(r0 + 3) += w1;			\
+	r0 = *(u32*)(r0 + 3);				\
+	exit;						\
+"	:
+	: __imm(bpf_map_lookup_elem),
+	  __imm_addr(map_hash_8b)
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("xadd/w check unaligned pkt")
+__failure __msg("BPF_ATOMIC stores into R2 pkt is not allowed")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void xadd_w_check_unaligned_pkt(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	r0 = 99;					\
+	goto l1_%=;					\
+l0_%=:	r0 = 1;						\
+	r1 = 0;						\
+	*(u32*)(r2 + 0) = r1;				\
+	r1 = 0;						\
+	*(u32*)(r2 + 3) = r1;				\
+	lock *(u32 *)(r2 + 1) += w0;			\
+	lock *(u32 *)(r2 + 2) += w0;			\
+	r0 = *(u32*)(r2 + 1);				\
+l1_%=:	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("tc")
+__description("xadd/w check whether src/dst got mangled, 1")
+__success __retval(3)
+__naked void src_dst_got_mangled_1(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	r6 = r0;					\
+	r7 = r10;					\
+	*(u64*)(r10 - 8) = r0;				\
+	lock *(u64 *)(r10 - 8) += r0;			\
+	lock *(u64 *)(r10 - 8) += r0;			\
+	if r6 != r0 goto l0_%=;				\
+	if r7 != r10 goto l0_%=;			\
+	r0 = *(u64*)(r10 - 8);				\
+	exit;						\
+l0_%=:	r0 = 42;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+SEC("tc")
+__description("xadd/w check whether src/dst got mangled, 2")
+__success __retval(3)
+__naked void src_dst_got_mangled_2(void)
+{
+	asm volatile ("					\
+	r0 = 1;						\
+	r6 = r0;					\
+	r7 = r10;					\
+	*(u32*)(r10 - 8) = r0;				\
+	lock *(u32 *)(r10 - 8) += w0;			\
+	lock *(u32 *)(r10 - 8) += w0;			\
+	if r6 != r0 goto l0_%=;				\
+	if r7 != r10 goto l0_%=;			\
+	r0 = *(u32*)(r10 - 8);				\
+	exit;						\
+l0_%=:	r0 = 42;					\
+	exit;						\
+"	::: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_xdp.c b/tools/testing/selftests/bpf/progs/verifier_xdp.c
new file mode 100644
index 000000000000..50768ed179b3
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_xdp.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/xdp.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("XDP, using ifindex from netdev")
+__success __retval(1)
+__naked void xdp_using_ifindex_from_netdev(void)
+{
+	asm volatile ("					\
+	r0 = 0;						\
+	r2 = *(u32*)(r1 + %[xdp_md_ingress_ifindex]);	\
+	if r2 < 1 goto l0_%=;				\
+	r0 = 1;						\
+l0_%=:	exit;						\
+"	:
+	: __imm_const(xdp_md_ingress_ifindex, offsetof(struct xdp_md, ingress_ifindex))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c b/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
new file mode 100644
index 000000000000..df2dfd1b15d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/verifier_xdp_direct_packet_access.c
@@ -0,0 +1,1722 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Converted from tools/testing/selftests/bpf/verifier/xdp_direct_packet_access.c */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end mangling, bad access 1")
+__failure __msg("R3 pointer arithmetic on pkt_end")
+__naked void end_mangling_bad_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	r3 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end mangling, bad access 2")
+__failure __msg("R3 pointer arithmetic on pkt_end")
+__naked void end_mangling_bad_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	r3 -= 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_1_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 4);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 9);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' > pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_pkt_data_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 6);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end > pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_end_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 6);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' < pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 4);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 9);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end < pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_end_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u32*)(r1 - 5);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_5(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' >= pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_5(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 4);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_6(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 9);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end >= pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_6(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_corner_case_good_access_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_1_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 4);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_end_bad_access_2_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_7(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 9);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data' <= pkt_end, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_7(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void end_pkt_data_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u32*)(r1 - 5);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_8(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_end <= pkt_data', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_8(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data_end]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_end, offsetof(struct xdp_md, data_end))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_5(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 4);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_5(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 > r3 goto l0_%=;				\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_9(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 9);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' > pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_9(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 > r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data > pkt_meta', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_meta_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data > pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_10(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 6);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data > pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data > pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data > pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_10(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 > r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' < pkt_data, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_pkt_data_good_access_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' < pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_11(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 6);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' < pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_6(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' < pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_6(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' < pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_11(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 < r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data < pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data < pkt_meta', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_1_1(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 4);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data < pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 < r1 goto l0_%=;				\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data < pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_12(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 9);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data < pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_12(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 < r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' >= pkt_data, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_pkt_data_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u32*)(r1 - 5);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' >= pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_13(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' >= pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_7(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' >= pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_7(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' >= pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_13(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 >= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data >= pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data >= pkt_meta', bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_1_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 4);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data >= pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_3(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 >= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data >= pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_14(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 9);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data >= pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_14(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 >= r1 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' <= pkt_data, corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_corner_case_good_access_8(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 8);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' <= pkt_data, bad access 1")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_1_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 4);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' <= pkt_data, bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_data_bad_access_2_8(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r1 <= r3 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' <= pkt_data, corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_15(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 9;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 9);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_meta' <= pkt_data, corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_15(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r1 <= r3 goto l0_%=;				\
+	goto l1_%=;					\
+l0_%=:	r0 = *(u64*)(r1 - 7);				\
+l1_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data <= pkt_meta', good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void data_pkt_meta_good_access_2(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u32*)(r1 - 5);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data <= pkt_meta', corner case -1, bad access")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_bad_access_16(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 6;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 6);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data <= pkt_meta', bad access 2")
+__failure __msg("R1 offset is outside of the packet")
+__flag(BPF_F_ANY_ALIGNMENT)
+__naked void pkt_meta_bad_access_2_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+l0_%=:	r0 = *(u32*)(r1 - 5);				\
+	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data <= pkt_meta', corner case, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void meta_corner_case_good_access_4(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 7;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 7);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+SEC("xdp")
+__description("XDP pkt read, pkt_data <= pkt_meta', corner case +1, good access")
+__success __retval(0) __flag(BPF_F_ANY_ALIGNMENT)
+__naked void corner_case_1_good_access_16(void)
+{
+	asm volatile ("					\
+	r2 = *(u32*)(r1 + %[xdp_md_data_meta]);		\
+	r3 = *(u32*)(r1 + %[xdp_md_data]);		\
+	r1 = r2;					\
+	r1 += 8;					\
+	if r3 <= r1 goto l0_%=;				\
+	r0 = *(u64*)(r1 - 8);				\
+l0_%=:	r0 = 0;						\
+	exit;						\
+"	:
+	: __imm_const(xdp_md_data, offsetof(struct xdp_md, data)),
+	  __imm_const(xdp_md_data_meta, offsetof(struct xdp_md, data_meta))
+	: __clobber_all);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/vrf_socket_lookup.c b/tools/testing/selftests/bpf/progs/vrf_socket_lookup.c
new file mode 100644
index 000000000000..bcfb6feb38c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/vrf_socket_lookup.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include <linux/ip.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/pkt_cls.h>
+#include <stdbool.h>
+
+int lookup_status;
+bool test_xdp;
+bool tcp_skc;
+
+#define CUR_NS BPF_F_CURRENT_NETNS
+
+static void socket_lookup(void *ctx, void *data_end, void *data)
+{
+	struct ethhdr *eth = data;
+	struct bpf_sock_tuple *tp;
+	struct bpf_sock *sk;
+	struct iphdr *iph;
+	int tplen;
+
+	if (eth + 1 > data_end)
+		return;
+
+	if (eth->h_proto != bpf_htons(ETH_P_IP))
+		return;
+
+	iph = (struct iphdr *)(eth + 1);
+	if (iph + 1 > data_end)
+		return;
+
+	tp = (struct bpf_sock_tuple *)&iph->saddr;
+	tplen = sizeof(tp->ipv4);
+	if ((void *)tp + tplen > data_end)
+		return;
+
+	switch (iph->protocol) {
+	case IPPROTO_TCP:
+		if (tcp_skc)
+			sk = bpf_skc_lookup_tcp(ctx, tp, tplen, CUR_NS, 0);
+		else
+			sk = bpf_sk_lookup_tcp(ctx, tp, tplen, CUR_NS, 0);
+		break;
+	case IPPROTO_UDP:
+		sk = bpf_sk_lookup_udp(ctx, tp, tplen, CUR_NS, 0);
+		break;
+	default:
+		return;
+	}
+
+	lookup_status = 0;
+
+	if (sk) {
+		bpf_sk_release(sk);
+		lookup_status = 1;
+	}
+}
+
+SEC("tc")
+int tc_socket_lookup(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+
+	if (test_xdp)
+		return TC_ACT_UNSPEC;
+
+	socket_lookup(skb, data_end, data);
+	return TC_ACT_UNSPEC;
+}
+
+SEC("xdp")
+int xdp_socket_lookup(struct xdp_md *xdp)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+
+	if (!test_xdp)
+		return XDP_PASS;
+
+	socket_lookup(xdp, data_end, data);
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/wq.c b/tools/testing/selftests/bpf/progs/wq.c
new file mode 100644
index 000000000000..25be2cd9d42c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/wq.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Benjamin Tissoires
+ */
+
+#include "bpf_experimental.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct hmap_elem {
+	int counter;
+	struct bpf_timer timer; /* unused */
+	struct bpf_spin_lock lock; /* unused */
+	struct bpf_wq work;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, struct hmap_elem);
+} hmap_malloc SEC(".maps");
+
+struct elem {
+	int ok_offset;
+	struct bpf_wq w;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 4);
+	__type(key, int);
+	__type(value, struct elem);
+} lru SEC(".maps");
+
+__u32 ok;
+__u32 ok_sleepable;
+
+static int test_elem_callback(void *map, int *key,
+		int (callback_fn)(void *map, int *key, void *value))
+{
+	struct elem init = {}, *val;
+	struct bpf_wq *wq;
+
+	if ((ok & (1 << *key) ||
+	    (ok_sleepable & (1 << *key))))
+		return -22;
+
+	if (map == &lru &&
+	    bpf_map_update_elem(map, key, &init, 0))
+		return -1;
+
+	val = bpf_map_lookup_elem(map, key);
+	if (!val)
+		return -2;
+
+	val->ok_offset = *key;
+
+	wq = &val->w;
+	if (bpf_wq_init(wq, map, 0) != 0)
+		return -3;
+
+	if (bpf_wq_set_callback(wq, callback_fn, 0))
+		return -4;
+
+	if (bpf_wq_start(wq, 0))
+		return -5;
+
+	return 0;
+}
+
+static int test_hmap_elem_callback(void *map, int *key,
+		int (callback_fn)(void *map, int *key, void *value))
+{
+	struct hmap_elem init = {}, *val;
+	struct bpf_wq *wq;
+
+	if ((ok & (1 << *key) ||
+	    (ok_sleepable & (1 << *key))))
+		return -22;
+
+	if (bpf_map_update_elem(map, key, &init, 0))
+		return -1;
+
+	val = bpf_map_lookup_elem(map, key);
+	if (!val)
+		return -2;
+
+	wq = &val->work;
+	if (bpf_wq_init(wq, map, 0) != 0)
+		return -3;
+
+	if (bpf_wq_set_callback(wq, callback_fn, 0))
+		return -4;
+
+	if (bpf_wq_start(wq, 0))
+		return -5;
+
+	return 0;
+}
+
+/* callback for non sleepable workqueue */
+static int wq_callback(void *map, int *key, void *value)
+{
+	bpf_kfunc_common_test();
+	ok |= (1 << *key);
+	return 0;
+}
+
+/* callback for sleepable workqueue */
+static int wq_cb_sleepable(void *map, int *key, void *value)
+{
+	struct elem *data = (struct elem *)value;
+	int offset = data->ok_offset;
+
+	if (*key != offset)
+		return 0;
+
+	bpf_kfunc_call_test_sleepable();
+	ok_sleepable |= (1 << offset);
+	return 0;
+}
+
+SEC("tc")
+/* test that workqueues can be used from an array */
+__retval(0)
+long test_call_array_sleepable(void *ctx)
+{
+	int key = 0;
+
+	return test_elem_callback(&array, &key, wq_cb_sleepable);
+}
+
+SEC("syscall")
+/* Same test than above but from a sleepable context. */
+__retval(0)
+long test_syscall_array_sleepable(void *ctx)
+{
+	int key = 1;
+
+	return test_elem_callback(&array, &key, wq_cb_sleepable);
+}
+
+SEC("tc")
+/* test that workqueues can be used from a hashmap */
+__retval(0)
+long test_call_hash_sleepable(void *ctx)
+{
+	int key = 2;
+
+	return test_hmap_elem_callback(&hmap, &key, wq_callback);
+}
+
+SEC("tc")
+/* test that workqueues can be used from a hashmap with NO_PREALLOC. */
+__retval(0)
+long test_call_hash_malloc_sleepable(void *ctx)
+{
+	int key = 3;
+
+	return test_hmap_elem_callback(&hmap_malloc, &key, wq_callback);
+}
+
+SEC("tc")
+/* test that workqueues can be used from a LRU map */
+__retval(0)
+long test_call_lru_sleepable(void *ctx)
+{
+	int key = 4;
+
+	return test_elem_callback(&lru, &key, wq_callback);
+}
+
+SEC("tc")
+long test_map_no_btf(void *ctx)
+{
+	struct elem *val;
+	struct bpf_wq *wq;
+	int key = 42;
+
+	val = bpf_map_lookup_elem(&array, &key);
+	if (!val)
+		return -2;
+
+	wq = &val->w;
+	if (bpf_wq_init(wq, &array, 0) != 0)
+		return -3;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/wq_failures.c b/tools/testing/selftests/bpf/progs/wq_failures.c
new file mode 100644
index 000000000000..d06f6d40594a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/wq_failures.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Benjamin Tissoires
+ */
+
+#include "bpf_experimental.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+#include "../test_kmods/bpf_testmod_kfunc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct elem {
+	struct bpf_wq w;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, struct elem);
+} array SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LRU_HASH);
+	__uint(max_entries, 4);
+	__type(key, int);
+	__type(value, struct elem);
+} lru SEC(".maps");
+
+/* callback for non sleepable workqueue */
+static int wq_callback(void *map, int *key, void *value)
+{
+	bpf_kfunc_common_test();
+	return 0;
+}
+
+/* callback for sleepable workqueue */
+static int wq_cb_sleepable(void *map, int *key, void *value)
+{
+	bpf_kfunc_call_test_sleepable();
+	return 0;
+}
+
+SEC("tc")
+/* test that bpf_wq_init takes a map as a second argument
+ */
+__log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure
+__msg(": (85) call bpf_wq_init#") /* anchor message */
+__msg("pointer in R2 isn't map pointer")
+long test_wq_init_nomap(void *ctx)
+{
+	struct bpf_wq *wq;
+	struct elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&array, &key);
+	if (!val)
+		return -1;
+
+	wq = &val->w;
+	if (bpf_wq_init(wq, &key, 0) != 0)
+		return -3;
+
+	return 0;
+}
+
+SEC("tc")
+/* test that the workqueue is part of the map in bpf_wq_init
+ */
+__log_level(2)
+__flag(BPF_F_TEST_STATE_FREQ)
+__failure
+__msg(": (85) call bpf_wq_init#") /* anchor message */
+__msg("workqueue pointer in R1 map_uid=0 doesn't match map pointer in R2 map_uid=0")
+long test_wq_init_wrong_map(void *ctx)
+{
+	struct bpf_wq *wq;
+	struct elem *val;
+	int key = 0;
+
+	val = bpf_map_lookup_elem(&array, &key);
+	if (!val)
+		return -1;
+
+	wq = &val->w;
+	if (bpf_wq_init(wq, &lru, 0) != 0)
+		return -3;
+
+	return 0;
+}
+
+SEC("?tc")
+__log_level(2)
+__failure
+/* check that the first argument of bpf_wq_set_callback()
+ * is a correct bpf_wq pointer.
+ */
+__msg(": (85) call bpf_wq_set_callback_impl#") /* anchor message */
+__msg("arg#0 doesn't point to a map value")
+long test_wrong_wq_pointer(void *ctx)
+{
+	int key = 0;
+	struct bpf_wq *wq;
+
+	wq = bpf_map_lookup_elem(&array, &key);
+	if (!wq)
+		return 1;
+
+	if (bpf_wq_init(wq, &array, 0))
+		return 2;
+
+	if (bpf_wq_set_callback((void *)&wq, wq_callback, 0))
+		return 3;
+
+	return -22;
+}
+
+SEC("?tc")
+__log_level(2)
+__failure
+/* check that the first argument of bpf_wq_set_callback()
+ * is a correct bpf_wq pointer.
+ */
+__msg(": (85) call bpf_wq_set_callback_impl#") /* anchor message */
+__msg("off 1 doesn't point to 'struct bpf_wq' that is at 0")
+long test_wrong_wq_pointer_offset(void *ctx)
+{
+	int key = 0;
+	struct bpf_wq *wq;
+
+	wq = bpf_map_lookup_elem(&array, &key);
+	if (!wq)
+		return 1;
+
+	if (bpf_wq_init(wq, &array, 0))
+		return 2;
+
+	if (bpf_wq_set_callback((void *)wq + 1, wq_cb_sleepable, 0))
+		return 3;
+
+	return -22;
+}
+
+SEC("tc")
+__log_level(2)
+__failure
+__msg(": (85) call bpf_wq_init#")
+__msg("R1 doesn't have constant offset. bpf_wq has to be at the constant offset")
+long test_bad_wq_off(void *ctx)
+{
+	struct elem *val;
+	struct bpf_wq *wq;
+	int key = 42;
+	u64 unknown;
+
+	val = bpf_map_lookup_elem(&array, &key);
+	if (!val)
+		return -2;
+
+	unknown = bpf_get_prandom_u32();
+	wq = &val->w + unknown;
+	if (bpf_wq_init(wq, &array, 0) != 0)
+		return -3;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/xdp_dummy.c b/tools/testing/selftests/bpf/progs/xdp_dummy.c
new file mode 100644
index 000000000000..d988b2e0cee8
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_dummy.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define KBUILD_MODNAME "xdp_dummy"
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int xdp_dummy_prog(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_features.c b/tools/testing/selftests/bpf/progs/xdp_features.c
new file mode 100644
index 000000000000..67424084a38a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_features.c
@@ -0,0 +1,268 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdbool.h>
+#include <linux/bpf.h>
+#include <linux/netdev.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_tracing.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/udp.h>
+#include <asm-generic/errno-base.h>
+
+#include "xdp_features.h"
+
+#define ipv6_addr_equal(a, b)	((a).s6_addr32[0] == (b).s6_addr32[0] &&	\
+				 (a).s6_addr32[1] == (b).s6_addr32[1] &&	\
+				 (a).s6_addr32[2] == (b).s6_addr32[2] &&	\
+				 (a).s6_addr32[3] == (b).s6_addr32[3])
+
+struct net_device;
+struct bpf_prog;
+
+struct xdp_cpumap_stats {
+	unsigned int redirect;
+	unsigned int pass;
+	unsigned int drop;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1);
+} stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1);
+} dut_stats SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CPUMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_cpumap_val));
+	__uint(max_entries, 1);
+} cpu_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 1);
+} dev_map SEC(".maps");
+
+const volatile struct in6_addr tester_addr;
+const volatile struct in6_addr dut_addr;
+
+static __always_inline int
+xdp_process_echo_packet(struct xdp_md *xdp, bool dut)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eh = data;
+	struct tlv_hdr *tlv;
+	struct udphdr *uh;
+	__be16 port;
+
+	if (eh + 1 > (struct ethhdr *)data_end)
+		return -EINVAL;
+
+	if (eh->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *ih = (struct iphdr *)(eh + 1);
+		__be32 saddr = dut ? tester_addr.s6_addr32[3]
+				   : dut_addr.s6_addr32[3];
+		__be32 daddr = dut ? dut_addr.s6_addr32[3]
+				   : tester_addr.s6_addr32[3];
+
+		ih = (struct iphdr *)(eh + 1);
+		if (ih + 1 > (struct iphdr *)data_end)
+			return -EINVAL;
+
+		if (saddr != ih->saddr)
+			return -EINVAL;
+
+		if (daddr != ih->daddr)
+			return -EINVAL;
+
+		if (ih->protocol != IPPROTO_UDP)
+			return -EINVAL;
+
+		uh = (struct udphdr *)(ih + 1);
+	} else if (eh->h_proto == bpf_htons(ETH_P_IPV6)) {
+		struct in6_addr saddr = dut ? tester_addr : dut_addr;
+		struct in6_addr daddr = dut ? dut_addr : tester_addr;
+		struct ipv6hdr *ih6 = (struct ipv6hdr *)(eh + 1);
+
+		if (ih6 + 1 > (struct ipv6hdr *)data_end)
+			return -EINVAL;
+
+		if (!ipv6_addr_equal(saddr, ih6->saddr))
+			return -EINVAL;
+
+		if (!ipv6_addr_equal(daddr, ih6->daddr))
+			return -EINVAL;
+
+		if (ih6->nexthdr != IPPROTO_UDP)
+			return -EINVAL;
+
+		uh = (struct udphdr *)(ih6 + 1);
+	} else {
+		return -EINVAL;
+	}
+
+	if (uh + 1 > (struct udphdr *)data_end)
+		return -EINVAL;
+
+	port = dut ? uh->dest : uh->source;
+	if (port != bpf_htons(DUT_ECHO_PORT))
+		return -EINVAL;
+
+	tlv = (struct tlv_hdr *)(uh + 1);
+	if (tlv + 1 > data_end)
+		return -EINVAL;
+
+	return bpf_htons(tlv->type) == CMD_ECHO ? 0 : -EINVAL;
+}
+
+static __always_inline int
+xdp_update_stats(struct xdp_md *xdp, bool tx, bool dut)
+{
+	__u32 *val, key = 0;
+
+	if (xdp_process_echo_packet(xdp, tx))
+		return -EINVAL;
+
+	if (dut)
+		val = bpf_map_lookup_elem(&dut_stats, &key);
+	else
+		val = bpf_map_lookup_elem(&stats, &key);
+
+	if (val)
+		__sync_add_and_fetch(val, 1);
+
+	return 0;
+}
+
+/* Tester */
+
+SEC("xdp")
+int xdp_tester_check_tx(struct xdp_md *xdp)
+{
+	xdp_update_stats(xdp, true, false);
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int xdp_tester_check_rx(struct xdp_md *xdp)
+{
+	xdp_update_stats(xdp, false, false);
+
+	return XDP_PASS;
+}
+
+/* DUT */
+
+SEC("xdp")
+int xdp_do_pass(struct xdp_md *xdp)
+{
+	xdp_update_stats(xdp, true, true);
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int xdp_do_drop(struct xdp_md *xdp)
+{
+	if (xdp_update_stats(xdp, true, true))
+		return XDP_PASS;
+
+	return XDP_DROP;
+}
+
+SEC("xdp")
+int xdp_do_aborted(struct xdp_md *xdp)
+{
+	if (xdp_process_echo_packet(xdp, true))
+		return XDP_PASS;
+
+	return XDP_ABORTED;
+}
+
+SEC("xdp")
+int xdp_do_tx(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eh = data;
+	__u8 tmp_mac[ETH_ALEN];
+
+	if (xdp_update_stats(xdp, true, true))
+		return XDP_PASS;
+
+	__builtin_memcpy(tmp_mac, eh->h_source, ETH_ALEN);
+	__builtin_memcpy(eh->h_source, eh->h_dest, ETH_ALEN);
+	__builtin_memcpy(eh->h_dest, tmp_mac, ETH_ALEN);
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int xdp_do_redirect(struct xdp_md *xdp)
+{
+	if (xdp_process_echo_packet(xdp, true))
+		return XDP_PASS;
+
+	return bpf_redirect_map(&cpu_map, 0, 0);
+}
+
+SEC("tp_btf/xdp_exception")
+int BPF_PROG(xdp_exception, const struct net_device *dev,
+	     const struct bpf_prog *xdp, __u32 act)
+{
+	__u32 *val, key = 0;
+
+	val = bpf_map_lookup_elem(&dut_stats, &key);
+	if (val)
+		__sync_add_and_fetch(val, 1);
+
+	return 0;
+}
+
+SEC("tp_btf/xdp_cpumap_kthread")
+int BPF_PROG(tp_xdp_cpumap_kthread, int map_id, unsigned int processed,
+	     unsigned int drops, int sched, struct xdp_cpumap_stats *xdp_stats)
+{
+	__u32 *val, key = 0;
+
+	val = bpf_map_lookup_elem(&dut_stats, &key);
+	if (val)
+		__sync_add_and_fetch(val, 1);
+
+	return 0;
+}
+
+SEC("xdp/cpumap")
+int xdp_do_redirect_cpumap(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eh = data;
+	__u8 tmp_mac[ETH_ALEN];
+
+	if (xdp_process_echo_packet(xdp, true))
+		return XDP_PASS;
+
+	__builtin_memcpy(tmp_mac, eh->h_source, ETH_ALEN);
+	__builtin_memcpy(eh->h_source, eh->h_dest, ETH_ALEN);
+	__builtin_memcpy(eh->h_dest, tmp_mac, ETH_ALEN);
+
+	return bpf_redirect_map(&dev_map, 0, 0);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_flowtable.c b/tools/testing/selftests/bpf/progs/xdp_flowtable.c
new file mode 100644
index 000000000000..7fdc7b23ee74
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_flowtable.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BPF_NO_KFUNC_PROTOTYPES
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define ETH_P_IP	0x0800
+#define ETH_P_IPV6	0x86dd
+#define IP_MF		0x2000	/* "More Fragments" */
+#define IP_OFFSET	0x1fff	/* "Fragment Offset" */
+#define AF_INET		2
+#define AF_INET6	10
+
+struct bpf_flowtable_opts___local {
+	s32 error;
+};
+
+struct flow_offload_tuple_rhash *
+bpf_xdp_flow_lookup(struct xdp_md *, struct bpf_fib_lookup *,
+		    struct bpf_flowtable_opts___local *, u32) __ksym;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u32);
+	__uint(max_entries, 1);
+} stats SEC(".maps");
+
+static bool xdp_flowtable_offload_check_iphdr(struct iphdr *iph)
+{
+	/* ip fragmented traffic */
+	if (iph->frag_off & bpf_htons(IP_MF | IP_OFFSET))
+		return false;
+
+	/* ip options */
+	if (iph->ihl * 4 != sizeof(*iph))
+		return false;
+
+	if (iph->ttl <= 1)
+		return false;
+
+	return true;
+}
+
+static bool xdp_flowtable_offload_check_tcp_state(void *ports, void *data_end,
+						  u8 proto)
+{
+	if (proto == IPPROTO_TCP) {
+		struct tcphdr *tcph = ports;
+
+		if (tcph + 1 > data_end)
+			return false;
+
+		if (tcph->fin || tcph->rst)
+			return false;
+	}
+
+	return true;
+}
+
+struct flow_ports___local {
+	__be16 source, dest;
+} __attribute__((preserve_access_index));
+
+SEC("xdp.frags")
+int xdp_flowtable_do_lookup(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	struct bpf_flowtable_opts___local opts = {};
+	struct flow_offload_tuple_rhash *tuplehash;
+	struct bpf_fib_lookup tuple = {
+		.ifindex = ctx->ingress_ifindex,
+	};
+	void *data = (void *)(long)ctx->data;
+	struct ethhdr *eth = data;
+	struct flow_ports___local *ports;
+	__u32 *val, key = 0;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	switch (eth->h_proto) {
+	case bpf_htons(ETH_P_IP): {
+		struct iphdr *iph = data + sizeof(*eth);
+
+		ports = (struct flow_ports___local *)(iph + 1);
+		if (ports + 1 > data_end)
+			return XDP_PASS;
+
+		/* sanity check on ip header */
+		if (!xdp_flowtable_offload_check_iphdr(iph))
+			return XDP_PASS;
+
+		if (!xdp_flowtable_offload_check_tcp_state(ports, data_end,
+							   iph->protocol))
+			return XDP_PASS;
+
+		tuple.family		= AF_INET;
+		tuple.tos		= iph->tos;
+		tuple.l4_protocol	= iph->protocol;
+		tuple.tot_len		= bpf_ntohs(iph->tot_len);
+		tuple.ipv4_src		= iph->saddr;
+		tuple.ipv4_dst		= iph->daddr;
+		tuple.sport		= ports->source;
+		tuple.dport		= ports->dest;
+		break;
+	}
+	case bpf_htons(ETH_P_IPV6): {
+		struct in6_addr *src = (struct in6_addr *)tuple.ipv6_src;
+		struct in6_addr *dst = (struct in6_addr *)tuple.ipv6_dst;
+		struct ipv6hdr *ip6h = data + sizeof(*eth);
+
+		ports = (struct flow_ports___local *)(ip6h + 1);
+		if (ports + 1 > data_end)
+			return XDP_PASS;
+
+		if (ip6h->hop_limit <= 1)
+			return XDP_PASS;
+
+		if (!xdp_flowtable_offload_check_tcp_state(ports, data_end,
+							   ip6h->nexthdr))
+			return XDP_PASS;
+
+		tuple.family		= AF_INET6;
+		tuple.l4_protocol	= ip6h->nexthdr;
+		tuple.tot_len		= bpf_ntohs(ip6h->payload_len);
+		*src			= ip6h->saddr;
+		*dst			= ip6h->daddr;
+		tuple.sport		= ports->source;
+		tuple.dport		= ports->dest;
+		break;
+	}
+	default:
+		return XDP_PASS;
+	}
+
+	tuplehash = bpf_xdp_flow_lookup(ctx, &tuple, &opts, sizeof(opts));
+	if (!tuplehash)
+		return XDP_PASS;
+
+	val = bpf_map_lookup_elem(&stats, &key);
+	if (val)
+		__sync_add_and_fetch(val, 1);
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c
new file mode 100644
index 000000000000..330ece2eabdb
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include "xdp_metadata.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 256);
+	__type(key, __u32);
+	__type(value, __u32);
+} xsk SEC(".maps");
+
+__u64 pkts_skip = 0;
+__u64 pkts_fail = 0;
+__u64 pkts_redir = 0;
+
+extern int bpf_xdp_metadata_rx_timestamp(const struct xdp_md *ctx,
+					 __u64 *timestamp) __ksym;
+extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash,
+				    enum xdp_rss_hash_type *rss_type) __ksym;
+extern int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx,
+					__be16 *vlan_proto,
+					__u16 *vlan_tci) __ksym;
+
+SEC("xdp.frags")
+int rx(struct xdp_md *ctx)
+{
+	void *data, *data_meta, *data_end;
+	struct ipv6hdr *ip6h = NULL;
+	struct udphdr *udp = NULL;
+	struct iphdr *iph = NULL;
+	struct xdp_meta *meta;
+	struct ethhdr *eth;
+	int err;
+
+	data = (void *)(long)ctx->data;
+	data_end = (void *)(long)ctx->data_end;
+	eth = data;
+
+	if (eth + 1 < data_end && (eth->h_proto == bpf_htons(ETH_P_8021AD) ||
+				   eth->h_proto == bpf_htons(ETH_P_8021Q)))
+		eth = (void *)eth + sizeof(struct vlan_hdr);
+
+	if (eth + 1 < data_end && eth->h_proto == bpf_htons(ETH_P_8021Q))
+		eth = (void *)eth + sizeof(struct vlan_hdr);
+
+	if (eth + 1 < data_end) {
+		if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+			iph = (void *)(eth + 1);
+			if (iph + 1 < data_end && iph->protocol == IPPROTO_UDP)
+				udp = (void *)(iph + 1);
+		}
+		if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+			ip6h = (void *)(eth + 1);
+			if (ip6h + 1 < data_end && ip6h->nexthdr == IPPROTO_UDP)
+				udp = (void *)(ip6h + 1);
+		}
+		if (udp && udp + 1 > data_end)
+			udp = NULL;
+	}
+
+	if (!udp) {
+		__sync_add_and_fetch(&pkts_skip, 1);
+		return XDP_PASS;
+	}
+
+	/* Forwarding UDP:9091 to AF_XDP */
+	if (udp->dest != bpf_htons(9091)) {
+		__sync_add_and_fetch(&pkts_skip, 1);
+		return XDP_PASS;
+	}
+
+	err = bpf_xdp_adjust_meta(ctx, -(int)sizeof(struct xdp_meta));
+	if (err) {
+		__sync_add_and_fetch(&pkts_fail, 1);
+		return XDP_PASS;
+	}
+
+	data = (void *)(long)ctx->data;
+	data_meta = (void *)(long)ctx->data_meta;
+	meta = data_meta;
+
+	if (meta + 1 > data) {
+		__sync_add_and_fetch(&pkts_fail, 1);
+		return XDP_PASS;
+	}
+
+	meta->hint_valid = 0;
+
+	meta->xdp_timestamp = bpf_ktime_get_tai_ns();
+	err = bpf_xdp_metadata_rx_timestamp(ctx, &meta->rx_timestamp);
+	if (err)
+		meta->rx_timestamp_err = err;
+	else
+		meta->hint_valid |= XDP_META_FIELD_TS;
+
+	err = bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash,
+				       &meta->rx_hash_type);
+	if (err)
+		meta->rx_hash_err = err;
+	else
+		meta->hint_valid |= XDP_META_FIELD_RSS;
+
+	err = bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_proto,
+					   &meta->rx_vlan_tci);
+	if (err)
+		meta->rx_vlan_tag_err = err;
+	else
+		meta->hint_valid |= XDP_META_FIELD_VLAN_TAG;
+
+	__sync_add_and_fetch(&pkts_redir, 1);
+	return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata.c b/tools/testing/selftests/bpf/progs/xdp_metadata.c
new file mode 100644
index 000000000000..09bb8a038d52
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include "xdp_metadata.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 4);
+	__type(key, __u32);
+	__type(value, __u32);
+} xsk SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_PROG_ARRAY);
+	__uint(max_entries, 1);
+	__type(key, __u32);
+	__type(value, __u32);
+} prog_arr SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(__u32));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 1);
+} dev_map SEC(".maps");
+
+extern int bpf_xdp_metadata_rx_timestamp(const struct xdp_md *ctx,
+					 __u64 *timestamp) __ksym;
+extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash,
+				    enum xdp_rss_hash_type *rss_type) __ksym;
+extern int bpf_xdp_metadata_rx_vlan_tag(const struct xdp_md *ctx,
+					__be16 *vlan_proto,
+					__u16 *vlan_tci) __ksym;
+
+SEC("xdp")
+int rx(struct xdp_md *ctx)
+{
+	void *data, *data_meta, *data_end;
+	struct ipv6hdr *ip6h = NULL;
+	struct ethhdr *eth = NULL;
+	struct udphdr *udp = NULL;
+	struct iphdr *iph = NULL;
+	struct xdp_meta *meta;
+	u64 timestamp = -1;
+	int ret;
+
+	data = (void *)(long)ctx->data;
+	data_end = (void *)(long)ctx->data_end;
+	eth = data;
+	if (eth + 1 < data_end) {
+		if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+			iph = (void *)(eth + 1);
+			if (iph + 1 < data_end && iph->protocol == IPPROTO_UDP)
+				udp = (void *)(iph + 1);
+		}
+		if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+			ip6h = (void *)(eth + 1);
+			if (ip6h + 1 < data_end && ip6h->nexthdr == IPPROTO_UDP)
+				udp = (void *)(ip6h + 1);
+		}
+		if (udp && udp + 1 > data_end)
+			udp = NULL;
+	}
+
+	if (!udp)
+		return XDP_PASS;
+
+	/* Forwarding UDP:8080 to AF_XDP */
+	if (udp->dest != bpf_htons(8080))
+		return XDP_PASS;
+
+	/* Reserve enough for all custom metadata. */
+
+	ret = bpf_xdp_adjust_meta(ctx, -(int)sizeof(struct xdp_meta));
+	if (ret != 0)
+		return XDP_DROP;
+
+	data = (void *)(long)ctx->data;
+	data_meta = (void *)(long)ctx->data_meta;
+
+	if (data_meta + sizeof(struct xdp_meta) > data)
+		return XDP_DROP;
+
+	meta = data_meta;
+
+	/* Export metadata. */
+
+	/* We expect veth bpf_xdp_metadata_rx_timestamp to return 0 HW
+	 * timestamp, so put some non-zero value into AF_XDP frame for
+	 * the userspace.
+	 */
+	bpf_xdp_metadata_rx_timestamp(ctx, &timestamp);
+	if (timestamp == 0)
+		meta->rx_timestamp = 1;
+
+	bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type);
+	bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_proto,
+				     &meta->rx_vlan_tci);
+
+	return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS);
+}
+
+SEC("xdp")
+int redirect(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&dev_map, ctx->rx_queue_index, XDP_PASS);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata2.c b/tools/testing/selftests/bpf/progs/xdp_metadata2.c
new file mode 100644
index 000000000000..85f88d9d7a78
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_metadata2.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <vmlinux.h>
+#include "xdp_metadata.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash,
+				    enum xdp_rss_hash_type *rss_type) __ksym;
+
+int called;
+
+SEC("freplace/rx")
+int freplace_rx(struct xdp_md *ctx)
+{
+	enum xdp_rss_hash_type type = 0;
+	u32 hash = 0;
+	/* Call _any_ metadata function to make sure we don't crash. */
+	bpf_xdp_metadata_rx_hash(ctx, &hash, &type);
+	called++;
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_redirect_map.c b/tools/testing/selftests/bpf/progs/xdp_redirect_map.c
new file mode 100644
index 000000000000..50c8958f94e5
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_redirect_map.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/if_ether.h>
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(max_entries, 8);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} tx_port SEC(".maps");
+
+SEC("xdp")
+int xdp_redirect_map_0(struct xdp_md *xdp)
+{
+	return bpf_redirect_map(&tx_port, 0, 0);
+}
+
+SEC("xdp")
+int xdp_redirect_map_1(struct xdp_md *xdp)
+{
+	return bpf_redirect_map(&tx_port, 1, 0);
+}
+
+SEC("xdp")
+int xdp_redirect_map_2(struct xdp_md *xdp)
+{
+	return bpf_redirect_map(&tx_port, 2, 0);
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 3);
+	__type(key, __u32);
+	__type(value, __u64);
+} rxcnt SEC(".maps");
+
+static int xdp_count(struct xdp_md *xdp, __u32 key)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	__u64 *count;
+
+	if (data + sizeof(*eth) > data_end)
+		return XDP_DROP;
+
+	if (bpf_htons(eth->h_proto) == ETH_P_IP) {
+		/* We only count IPv4 packets */
+		count = bpf_map_lookup_elem(&rxcnt, &key);
+		if (count)
+			*count += 1;
+	}
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int xdp_count_0(struct xdp_md *xdp)
+{
+	return xdp_count(xdp, 0);
+}
+
+SEC("xdp")
+int xdp_count_1(struct xdp_md *xdp)
+{
+	return xdp_count(xdp, 1);
+}
+
+SEC("xdp")
+int xdp_count_2(struct xdp_md *xdp)
+{
+	return xdp_count(xdp, 2);
+}
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 2);
+	__type(key, __u32);
+	__type(value, __be64);
+} rx_mac SEC(".maps");
+
+static int store_mac(struct xdp_md *xdp, __u32 id)
+{
+	void *data_end = (void *)(long)xdp->data_end;
+	void *data = (void *)(long)xdp->data;
+	struct ethhdr *eth = data;
+	__u32 key = id;
+	__be64 mac = 0;
+
+	if (data + sizeof(*eth) > data_end)
+		return XDP_DROP;
+
+	/* Only store IPv4 MAC to avoid being polluted by IPv6 packets */
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		__builtin_memcpy(&mac, eth->h_source, ETH_ALEN);
+		bpf_map_update_elem(&rx_mac, &key, &mac, 0);
+		bpf_printk("%s - %x", __func__, mac);
+	}
+
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int store_mac_1(struct xdp_md *xdp)
+{
+	return store_mac(xdp, 0);
+}
+
+SEC("xdp")
+int store_mac_2(struct xdp_md *xdp)
+{
+	return store_mac(xdp, 1);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c b/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c
new file mode 100644
index 000000000000..bc2945ed8a80
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_redirect_multi_kern.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0
+#define KBUILD_MODNAME "foo"
+#include <string.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+/* One map use devmap, another one use devmap_hash for testing */
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+	__uint(max_entries, 1024);
+} map_all SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_DEVMAP_HASH);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(struct bpf_devmap_val));
+	__uint(max_entries, 128);
+} map_egress SEC(".maps");
+
+/* map to store egress interfaces mac addresses */
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, __be64);
+	__uint(max_entries, 128);
+} mac_map SEC(".maps");
+
+/* map to store redirect flags for each protocol*/
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u16);
+	__type(value, __u64);
+	__uint(max_entries, 16);
+} redirect_flags SEC(".maps");
+
+SEC("xdp")
+int xdp_redirect_map_multi_prog(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	int if_index = ctx->ingress_ifindex;
+	struct ethhdr *eth = data;
+	__u64 *flags_from_map;
+	__u16 h_proto;
+	__u64 nh_off;
+	__u64 flags;
+
+	nh_off = sizeof(*eth);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+
+	h_proto = bpf_htons(eth->h_proto);
+
+	flags_from_map = bpf_map_lookup_elem(&redirect_flags, &h_proto);
+
+	/* Default flags for IPv4 : (BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS) */
+	if (h_proto == ETH_P_IP) {
+		flags = flags_from_map ? *flags_from_map : BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS;
+		return bpf_redirect_map(&map_all, 0, flags);
+	}
+	/* Default flags for IPv6 : 0 */
+	if (h_proto == ETH_P_IPV6) {
+		flags = flags_from_map ? *flags_from_map : 0;
+		return bpf_redirect_map(&map_all, if_index, flags);
+	}
+	/* Default flags for others BPF_F_BROADCAST : 0 */
+	else {
+		flags = flags_from_map ? *flags_from_map : BPF_F_BROADCAST;
+		return bpf_redirect_map(&map_all, 0, flags);
+	}
+}
+
+/* The following 2 progs are for 2nd devmap prog testing */
+SEC("xdp")
+int xdp_redirect_map_all_prog(struct xdp_md *ctx)
+{
+	return bpf_redirect_map(&map_egress, 0,
+				BPF_F_BROADCAST | BPF_F_EXCLUDE_INGRESS);
+}
+
+SEC("xdp/devmap")
+int xdp_devmap_prog(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	__u32 key = ctx->egress_ifindex;
+	struct ethhdr *eth = data;
+	__u64 nh_off;
+	__be64 *mac;
+
+	nh_off = sizeof(*eth);
+	if (data + nh_off > data_end)
+		return XDP_DROP;
+
+	mac = bpf_map_lookup_elem(&mac_map, &key);
+	if (mac)
+		__builtin_memcpy(eth->h_source, mac, ETH_ALEN);
+
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
new file mode 100644
index 000000000000..62b8e29ced9f
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
@@ -0,0 +1,865 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#define BPF_NO_KFUNC_PROTOTYPES
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <asm/errno.h>
+
+#include "bpf_compiler.h"
+
+#define TC_ACT_OK 0
+#define TC_ACT_SHOT 2
+
+#define NSEC_PER_SEC 1000000000L
+
+#define ETH_ALEN 6
+#define ETH_P_IP 0x0800
+#define ETH_P_IPV6 0x86DD
+
+#define tcp_flag_word(tp) (((union tcp_word_hdr *)(tp))->words[3])
+
+#define IP_MF 0x2000
+#define IP_OFFSET 0x1fff
+
+#define NEXTHDR_TCP 6
+
+#define TCPOPT_NOP 1
+#define TCPOPT_EOL 0
+#define TCPOPT_MSS 2
+#define TCPOPT_WINDOW 3
+#define TCPOPT_SACK_PERM 4
+#define TCPOPT_TIMESTAMP 8
+
+#define TCPOLEN_MSS 4
+#define TCPOLEN_WINDOW 3
+#define TCPOLEN_SACK_PERM 2
+#define TCPOLEN_TIMESTAMP 10
+
+#define TCP_TS_HZ 1000
+#define TS_OPT_WSCALE_MASK 0xf
+#define TS_OPT_SACK (1 << 4)
+#define TS_OPT_ECN (1 << 5)
+#define TSBITS 6
+#define TSMASK (((__u32)1 << TSBITS) - 1)
+#define TCP_MAX_WSCALE 14U
+
+#define IPV4_MAXLEN 60
+#define TCP_MAXLEN 60
+
+#define DEFAULT_MSS4 1460
+#define DEFAULT_MSS6 1440
+#define DEFAULT_WSCALE 7
+#define DEFAULT_TTL 64
+#define MAX_ALLOWED_PORTS 8
+
+#define MAX_PACKET_OFF 0xffff
+
+#define swap(a, b) \
+	do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
+
+#define __get_unaligned_t(type, ptr) ({						\
+	const struct { type x; } __attribute__((__packed__)) *__pptr = (typeof(__pptr))(ptr); \
+	__pptr->x;								\
+})
+
+#define get_unaligned(ptr) __get_unaligned_t(typeof(*(ptr)), (ptr))
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(max_entries, 2);
+} values SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u16);
+	__uint(max_entries, MAX_ALLOWED_PORTS);
+} allowed_ports SEC(".maps");
+
+/* Some symbols defined in net/netfilter/nf_conntrack_bpf.c are unavailable in
+ * vmlinux.h if CONFIG_NF_CONNTRACK=m, so they are redefined locally.
+ */
+
+struct bpf_ct_opts___local {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 dir;
+	u8 reserved[2];
+} __attribute__((preserve_access_index));
+
+#define BPF_F_CURRENT_NETNS (-1)
+
+extern struct nf_conn *bpf_xdp_ct_lookup(struct xdp_md *xdp_ctx,
+					 struct bpf_sock_tuple *bpf_tuple,
+					 __u32 len_tuple,
+					 struct bpf_ct_opts___local *opts,
+					 __u32 len_opts) __ksym;
+
+extern struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *skb_ctx,
+					 struct bpf_sock_tuple *bpf_tuple,
+					 u32 len_tuple,
+					 struct bpf_ct_opts___local *opts,
+					 u32 len_opts) __ksym;
+
+extern void bpf_ct_release(struct nf_conn *ct) __ksym;
+
+static __always_inline void swap_eth_addr(__u8 *a, __u8 *b)
+{
+	__u8 tmp[ETH_ALEN];
+
+	__builtin_memcpy(tmp, a, ETH_ALEN);
+	__builtin_memcpy(a, b, ETH_ALEN);
+	__builtin_memcpy(b, tmp, ETH_ALEN);
+}
+
+static __always_inline __u16 csum_fold(__u32 csum)
+{
+	csum = (csum & 0xffff) + (csum >> 16);
+	csum = (csum & 0xffff) + (csum >> 16);
+	return (__u16)~csum;
+}
+
+static __always_inline __u16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+					       __u32 len, __u8 proto,
+					       __u32 csum)
+{
+	__u64 s = csum;
+
+	s += (__u32)saddr;
+	s += (__u32)daddr;
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	s += proto + len;
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	s += (proto + len) << 8;
+#else
+#error Unknown endian
+#endif
+	s = (s & 0xffffffff) + (s >> 32);
+	s = (s & 0xffffffff) + (s >> 32);
+
+	return csum_fold((__u32)s);
+}
+
+static __always_inline __u16 csum_ipv6_magic(const struct in6_addr *saddr,
+					     const struct in6_addr *daddr,
+					     __u32 len, __u8 proto, __u32 csum)
+{
+	__u64 sum = csum;
+	int i;
+
+	__pragma_loop_unroll
+	for (i = 0; i < 4; i++)
+		sum += (__u32)saddr->in6_u.u6_addr32[i];
+
+	__pragma_loop_unroll
+	for (i = 0; i < 4; i++)
+		sum += (__u32)daddr->in6_u.u6_addr32[i];
+
+	/* Don't combine additions to avoid 32-bit overflow. */
+	sum += bpf_htonl(len);
+	sum += bpf_htonl(proto);
+
+	sum = (sum & 0xffffffff) + (sum >> 32);
+	sum = (sum & 0xffffffff) + (sum >> 32);
+
+	return csum_fold((__u32)sum);
+}
+
+static __always_inline __u64 tcp_clock_ns(void)
+{
+	return bpf_ktime_get_ns();
+}
+
+static __always_inline __u32 tcp_ns_to_ts(__u64 ns)
+{
+	return ns / (NSEC_PER_SEC / TCP_TS_HZ);
+}
+
+static __always_inline __u32 tcp_clock_ms(void)
+{
+	return tcp_ns_to_ts(tcp_clock_ns());
+}
+
+struct tcpopt_context {
+	void *data;
+	void *data_end;
+	__be32 *tsecr;
+	__u8 wscale;
+	bool option_timestamp;
+	bool option_sack;
+	__u32 off;
+};
+
+static __always_inline u8 *next(struct tcpopt_context *ctx, __u32 sz)
+{
+	__u64 off = ctx->off;
+	__u8 *data;
+
+	/* Verifier forbids access to packet when offset exceeds MAX_PACKET_OFF */
+	if (off > MAX_PACKET_OFF - sz)
+		return NULL;
+
+	data = ctx->data + off;
+	barrier_var(data);
+	if (data + sz >= ctx->data_end)
+		return NULL;
+
+	ctx->off += sz;
+	return data;
+}
+
+static int tscookie_tcpopt_parse(struct tcpopt_context *ctx)
+{
+	__u8 *opcode, *opsize, *wscale, *tsecr;
+	__u32 off = ctx->off;
+
+	opcode = next(ctx, 1);
+	if (!opcode)
+		return 1;
+
+	if (*opcode == TCPOPT_EOL)
+		return 1;
+	if (*opcode == TCPOPT_NOP)
+		return 0;
+
+	opsize = next(ctx, 1);
+	if (!opsize || *opsize < 2)
+		return 1;
+
+	switch (*opcode) {
+	case TCPOPT_WINDOW:
+		wscale = next(ctx, 1);
+		if (!wscale)
+			return 1;
+		if (*opsize == TCPOLEN_WINDOW)
+			ctx->wscale = *wscale < TCP_MAX_WSCALE ? *wscale : TCP_MAX_WSCALE;
+		break;
+	case TCPOPT_TIMESTAMP:
+		tsecr = next(ctx, 4);
+		if (!tsecr)
+			return 1;
+		if (*opsize == TCPOLEN_TIMESTAMP) {
+			ctx->option_timestamp = true;
+			/* Client's tsval becomes our tsecr. */
+			*ctx->tsecr = get_unaligned((__be32 *)tsecr);
+		}
+		break;
+	case TCPOPT_SACK_PERM:
+		if (*opsize == TCPOLEN_SACK_PERM)
+			ctx->option_sack = true;
+		break;
+	}
+
+	ctx->off = off + *opsize;
+
+	return 0;
+}
+
+static int tscookie_tcpopt_parse_batch(__u32 index, void *context)
+{
+	int i;
+
+	for (i = 0; i < 7; i++)
+		if (tscookie_tcpopt_parse(context))
+			return 1;
+	return 0;
+}
+
+static __always_inline bool tscookie_init(struct tcphdr *tcp_header,
+					  __u16 tcp_len, __be32 *tsval,
+					  __be32 *tsecr, void *data, void *data_end)
+{
+	struct tcpopt_context loop_ctx = {
+		.data = data,
+		.data_end = data_end,
+		.tsecr = tsecr,
+		.wscale = TS_OPT_WSCALE_MASK,
+		.option_timestamp = false,
+		.option_sack = false,
+		/* Note: currently verifier would track .off as unbound scalar.
+		 *       In case if verifier would at some point get smarter and
+		 *       compute bounded value for this var, beware that it might
+		 *       hinder bpf_loop() convergence validation.
+		 */
+		.off = (__u8 *)(tcp_header + 1) - (__u8 *)data,
+	};
+	u32 cookie;
+
+	bpf_loop(6, tscookie_tcpopt_parse_batch, &loop_ctx, 0);
+
+	if (!loop_ctx.option_timestamp)
+		return false;
+
+	cookie = tcp_clock_ms() & ~TSMASK;
+	cookie |= loop_ctx.wscale & TS_OPT_WSCALE_MASK;
+	if (loop_ctx.option_sack)
+		cookie |= TS_OPT_SACK;
+	if (tcp_header->ece && tcp_header->cwr)
+		cookie |= TS_OPT_ECN;
+	*tsval = bpf_htonl(cookie);
+
+	return true;
+}
+
+static __always_inline void values_get_tcpipopts(__u16 *mss, __u8 *wscale,
+						 __u8 *ttl, bool ipv6)
+{
+	__u32 key = 0;
+	__u64 *value;
+
+	value = bpf_map_lookup_elem(&values, &key);
+	if (value && *value != 0) {
+		if (ipv6)
+			*mss = (*value >> 32) & 0xffff;
+		else
+			*mss = *value & 0xffff;
+		*wscale = (*value >> 16) & 0xf;
+		*ttl = (*value >> 24) & 0xff;
+		return;
+	}
+
+	*mss = ipv6 ? DEFAULT_MSS6 : DEFAULT_MSS4;
+	*wscale = DEFAULT_WSCALE;
+	*ttl = DEFAULT_TTL;
+}
+
+static __always_inline void values_inc_synacks(void)
+{
+	__u32 key = 1;
+	__u64 *value;
+
+	value = bpf_map_lookup_elem(&values, &key);
+	if (value)
+		__sync_fetch_and_add(value, 1);
+}
+
+static __always_inline bool check_port_allowed(__u16 port)
+{
+	__u32 i;
+
+	for (i = 0; i < MAX_ALLOWED_PORTS; i++) {
+		__u32 key = i;
+		__u16 *value;
+
+		value = bpf_map_lookup_elem(&allowed_ports, &key);
+
+		if (!value)
+			break;
+		/* 0 is a terminator value. Check it first to avoid matching on
+		 * a forbidden port == 0 and returning true.
+		 */
+		if (*value == 0)
+			break;
+
+		if (*value == port)
+			return true;
+	}
+
+	return false;
+}
+
+struct header_pointers {
+	struct ethhdr *eth;
+	struct iphdr *ipv4;
+	struct ipv6hdr *ipv6;
+	struct tcphdr *tcp;
+	__u16 tcp_len;
+};
+
+static __always_inline int tcp_dissect(void *data, void *data_end,
+				       struct header_pointers *hdr)
+{
+	hdr->eth = data;
+	if (hdr->eth + 1 > data_end)
+		return XDP_DROP;
+
+	switch (bpf_ntohs(hdr->eth->h_proto)) {
+	case ETH_P_IP:
+		hdr->ipv6 = NULL;
+
+		hdr->ipv4 = (void *)hdr->eth + sizeof(*hdr->eth);
+		if (hdr->ipv4 + 1 > data_end)
+			return XDP_DROP;
+		if (hdr->ipv4->ihl * 4 < sizeof(*hdr->ipv4))
+			return XDP_DROP;
+		if (hdr->ipv4->version != 4)
+			return XDP_DROP;
+
+		if (hdr->ipv4->protocol != IPPROTO_TCP)
+			return XDP_PASS;
+
+		hdr->tcp = (void *)hdr->ipv4 + hdr->ipv4->ihl * 4;
+		break;
+	case ETH_P_IPV6:
+		hdr->ipv4 = NULL;
+
+		hdr->ipv6 = (void *)hdr->eth + sizeof(*hdr->eth);
+		if (hdr->ipv6 + 1 > data_end)
+			return XDP_DROP;
+		if (hdr->ipv6->version != 6)
+			return XDP_DROP;
+
+		/* XXX: Extension headers are not supported and could circumvent
+		 * XDP SYN flood protection.
+		 */
+		if (hdr->ipv6->nexthdr != NEXTHDR_TCP)
+			return XDP_PASS;
+
+		hdr->tcp = (void *)hdr->ipv6 + sizeof(*hdr->ipv6);
+		break;
+	default:
+		/* XXX: VLANs will circumvent XDP SYN flood protection. */
+		return XDP_PASS;
+	}
+
+	if (hdr->tcp + 1 > data_end)
+		return XDP_DROP;
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	if (hdr->tcp_len < sizeof(*hdr->tcp))
+		return XDP_DROP;
+
+	return XDP_TX;
+}
+
+static __always_inline int tcp_lookup(void *ctx, struct header_pointers *hdr, bool xdp)
+{
+	struct bpf_ct_opts___local ct_lookup_opts = {
+		.netns_id = BPF_F_CURRENT_NETNS,
+		.l4proto = IPPROTO_TCP,
+	};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+	__u32 tup_size;
+
+	if (hdr->ipv4) {
+		/* TCP doesn't normally use fragments, and XDP can't reassemble
+		 * them.
+		 */
+		if ((hdr->ipv4->frag_off & bpf_htons(IP_MF | IP_OFFSET)) != 0)
+			return XDP_DROP;
+
+		tup.ipv4.saddr = hdr->ipv4->saddr;
+		tup.ipv4.daddr = hdr->ipv4->daddr;
+		tup.ipv4.sport = hdr->tcp->source;
+		tup.ipv4.dport = hdr->tcp->dest;
+		tup_size = sizeof(tup.ipv4);
+	} else if (hdr->ipv6) {
+		__builtin_memcpy(tup.ipv6.saddr, &hdr->ipv6->saddr, sizeof(tup.ipv6.saddr));
+		__builtin_memcpy(tup.ipv6.daddr, &hdr->ipv6->daddr, sizeof(tup.ipv6.daddr));
+		tup.ipv6.sport = hdr->tcp->source;
+		tup.ipv6.dport = hdr->tcp->dest;
+		tup_size = sizeof(tup.ipv6);
+	} else {
+		/* The verifier can't track that either ipv4 or ipv6 is not
+		 * NULL.
+		 */
+		return XDP_ABORTED;
+	}
+	if (xdp)
+		ct = bpf_xdp_ct_lookup(ctx, &tup, tup_size, &ct_lookup_opts, sizeof(ct_lookup_opts));
+	else
+		ct = bpf_skb_ct_lookup(ctx, &tup, tup_size, &ct_lookup_opts, sizeof(ct_lookup_opts));
+	if (ct) {
+		unsigned long status = ct->status;
+
+		bpf_ct_release(ct);
+		if (status & IPS_CONFIRMED)
+			return XDP_PASS;
+	} else if (ct_lookup_opts.error != -ENOENT) {
+		return XDP_ABORTED;
+	}
+
+	/* error == -ENOENT || !(status & IPS_CONFIRMED) */
+	return XDP_TX;
+}
+
+static __always_inline __u8 tcp_mkoptions(__be32 *buf, __be32 *tsopt, __u16 mss,
+					  __u8 wscale)
+{
+	__be32 *start = buf;
+
+	*buf++ = bpf_htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
+
+	if (!tsopt)
+		return buf - start;
+
+	if (tsopt[0] & bpf_htonl(1 << 4))
+		*buf++ = bpf_htonl((TCPOPT_SACK_PERM << 24) |
+				   (TCPOLEN_SACK_PERM << 16) |
+				   (TCPOPT_TIMESTAMP << 8) |
+				   TCPOLEN_TIMESTAMP);
+	else
+		*buf++ = bpf_htonl((TCPOPT_NOP << 24) |
+				   (TCPOPT_NOP << 16) |
+				   (TCPOPT_TIMESTAMP << 8) |
+				   TCPOLEN_TIMESTAMP);
+	*buf++ = tsopt[0];
+	*buf++ = tsopt[1];
+
+	if ((tsopt[0] & bpf_htonl(0xf)) != bpf_htonl(0xf))
+		*buf++ = bpf_htonl((TCPOPT_NOP << 24) |
+				   (TCPOPT_WINDOW << 16) |
+				   (TCPOLEN_WINDOW << 8) |
+				   wscale);
+
+	return buf - start;
+}
+
+static __always_inline void tcp_gen_synack(struct tcphdr *tcp_header,
+					   __u32 cookie, __be32 *tsopt,
+					   __u16 mss, __u8 wscale)
+{
+	void *tcp_options;
+
+	tcp_flag_word(tcp_header) = TCP_FLAG_SYN | TCP_FLAG_ACK;
+	if (tsopt && (tsopt[0] & bpf_htonl(1 << 5)))
+		tcp_flag_word(tcp_header) |= TCP_FLAG_ECE;
+	tcp_header->doff = 5; /* doff is part of tcp_flag_word. */
+	swap(tcp_header->source, tcp_header->dest);
+	tcp_header->ack_seq = bpf_htonl(bpf_ntohl(tcp_header->seq) + 1);
+	tcp_header->seq = bpf_htonl(cookie);
+	tcp_header->window = 0;
+	tcp_header->urg_ptr = 0;
+	tcp_header->check = 0; /* Calculate checksum later. */
+
+	tcp_options = (void *)(tcp_header + 1);
+	tcp_header->doff += tcp_mkoptions(tcp_options, tsopt, mss, wscale);
+}
+
+static __always_inline void tcpv4_gen_synack(struct header_pointers *hdr,
+					     __u32 cookie, __be32 *tsopt)
+{
+	__u8 wscale;
+	__u16 mss;
+	__u8 ttl;
+
+	values_get_tcpipopts(&mss, &wscale, &ttl, false);
+
+	swap_eth_addr(hdr->eth->h_source, hdr->eth->h_dest);
+
+	swap(hdr->ipv4->saddr, hdr->ipv4->daddr);
+	hdr->ipv4->check = 0; /* Calculate checksum later. */
+	hdr->ipv4->tos = 0;
+	hdr->ipv4->id = 0;
+	hdr->ipv4->ttl = ttl;
+
+	tcp_gen_synack(hdr->tcp, cookie, tsopt, mss, wscale);
+
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	hdr->ipv4->tot_len = bpf_htons(sizeof(*hdr->ipv4) + hdr->tcp_len);
+}
+
+static __always_inline void tcpv6_gen_synack(struct header_pointers *hdr,
+					     __u32 cookie, __be32 *tsopt)
+{
+	__u8 wscale;
+	__u16 mss;
+	__u8 ttl;
+
+	values_get_tcpipopts(&mss, &wscale, &ttl, true);
+
+	swap_eth_addr(hdr->eth->h_source, hdr->eth->h_dest);
+
+	swap(hdr->ipv6->saddr, hdr->ipv6->daddr);
+	*(__be32 *)hdr->ipv6 = bpf_htonl(0x60000000);
+	hdr->ipv6->hop_limit = ttl;
+
+	tcp_gen_synack(hdr->tcp, cookie, tsopt, mss, wscale);
+
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	hdr->ipv6->payload_len = bpf_htons(hdr->tcp_len);
+}
+
+static __always_inline int syncookie_handle_syn(struct header_pointers *hdr,
+						void *ctx,
+						void *data, void *data_end,
+						bool xdp)
+{
+	__u32 old_pkt_size, new_pkt_size;
+	/* Unlike clang 10, clang 11 and 12 generate code that doesn't pass the
+	 * BPF verifier if tsopt is not volatile. Volatile forces it to store
+	 * the pointer value and use it directly, otherwise tcp_mkoptions is
+	 * (mis)compiled like this:
+	 *   if (!tsopt)
+	 *       return buf - start;
+	 *   reg = stored_return_value_of_tscookie_init;
+	 *   if (reg)
+	 *       tsopt = tsopt_buf;
+	 *   else
+	 *       tsopt = NULL;
+	 *   ...
+	 *   *buf++ = tsopt[1];
+	 * It creates a dead branch where tsopt is assigned NULL, but the
+	 * verifier can't prove it's dead and blocks the program.
+	 */
+	__be32 * volatile tsopt = NULL;
+	__be32 tsopt_buf[2] = {};
+	__u16 ip_len;
+	__u32 cookie;
+	__s64 value;
+
+	/* Checksum is not yet verified, but both checksum failure and TCP
+	 * header checks return XDP_DROP, so the order doesn't matter.
+	 */
+	if (hdr->tcp->fin || hdr->tcp->rst)
+		return XDP_DROP;
+
+	/* Issue SYN cookies on allowed ports, drop SYN packets on blocked
+	 * ports.
+	 */
+	if (!check_port_allowed(bpf_ntohs(hdr->tcp->dest)))
+		return XDP_DROP;
+
+	if (hdr->ipv4) {
+		/* Check the IPv4 and TCP checksums before creating a SYNACK. */
+		value = bpf_csum_diff(0, 0, (void *)hdr->ipv4, hdr->ipv4->ihl * 4, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_fold(value) != 0)
+			return XDP_DROP; /* Bad IPv4 checksum. */
+
+		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_tcpudp_magic(hdr->ipv4->saddr, hdr->ipv4->daddr,
+				      hdr->tcp_len, IPPROTO_TCP, value) != 0)
+			return XDP_DROP; /* Bad TCP checksum. */
+
+		ip_len = sizeof(*hdr->ipv4);
+
+		value = bpf_tcp_raw_gen_syncookie_ipv4(hdr->ipv4, hdr->tcp,
+						       hdr->tcp_len);
+	} else if (hdr->ipv6) {
+		/* Check the TCP checksum before creating a SYNACK. */
+		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_ipv6_magic(&hdr->ipv6->saddr, &hdr->ipv6->daddr,
+				    hdr->tcp_len, IPPROTO_TCP, value) != 0)
+			return XDP_DROP; /* Bad TCP checksum. */
+
+		ip_len = sizeof(*hdr->ipv6);
+
+		value = bpf_tcp_raw_gen_syncookie_ipv6(hdr->ipv6, hdr->tcp,
+						       hdr->tcp_len);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	if (value < 0)
+		return XDP_ABORTED;
+	cookie = (__u32)value;
+
+	if (tscookie_init((void *)hdr->tcp, hdr->tcp_len,
+			  &tsopt_buf[0], &tsopt_buf[1], data, data_end))
+		tsopt = tsopt_buf;
+
+	/* Check that there is enough space for a SYNACK. It also covers
+	 * the check that the destination of the __builtin_memmove below
+	 * doesn't overflow.
+	 */
+	if (data + sizeof(*hdr->eth) + ip_len + TCP_MAXLEN > data_end)
+		return XDP_ABORTED;
+
+	if (hdr->ipv4) {
+		if (hdr->ipv4->ihl * 4 > sizeof(*hdr->ipv4)) {
+			struct tcphdr *new_tcp_header;
+
+			new_tcp_header = data + sizeof(*hdr->eth) + sizeof(*hdr->ipv4);
+			__builtin_memmove(new_tcp_header, hdr->tcp, sizeof(*hdr->tcp));
+			hdr->tcp = new_tcp_header;
+
+			hdr->ipv4->ihl = sizeof(*hdr->ipv4) / 4;
+		}
+
+		tcpv4_gen_synack(hdr, cookie, tsopt);
+	} else if (hdr->ipv6) {
+		tcpv6_gen_synack(hdr, cookie, tsopt);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	/* Recalculate checksums. */
+	hdr->tcp->check = 0;
+	value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+	if (value < 0)
+		return XDP_ABORTED;
+	if (hdr->ipv4) {
+		hdr->tcp->check = csum_tcpudp_magic(hdr->ipv4->saddr,
+						    hdr->ipv4->daddr,
+						    hdr->tcp_len,
+						    IPPROTO_TCP,
+						    value);
+
+		hdr->ipv4->check = 0;
+		value = bpf_csum_diff(0, 0, (void *)hdr->ipv4, sizeof(*hdr->ipv4), 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		hdr->ipv4->check = csum_fold(value);
+	} else if (hdr->ipv6) {
+		hdr->tcp->check = csum_ipv6_magic(&hdr->ipv6->saddr,
+						  &hdr->ipv6->daddr,
+						  hdr->tcp_len,
+						  IPPROTO_TCP,
+						  value);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	/* Set the new packet size. */
+	old_pkt_size = data_end - data;
+	new_pkt_size = sizeof(*hdr->eth) + ip_len + hdr->tcp->doff * 4;
+	if (xdp) {
+		if (bpf_xdp_adjust_tail(ctx, new_pkt_size - old_pkt_size))
+			return XDP_ABORTED;
+	} else {
+		if (bpf_skb_change_tail(ctx, new_pkt_size, 0))
+			return XDP_ABORTED;
+	}
+
+	values_inc_synacks();
+
+	return XDP_TX;
+}
+
+static __always_inline int syncookie_handle_ack(struct header_pointers *hdr)
+{
+	int err;
+
+	if (hdr->tcp->rst)
+		return XDP_DROP;
+
+	if (hdr->ipv4)
+		err = bpf_tcp_raw_check_syncookie_ipv4(hdr->ipv4, hdr->tcp);
+	else if (hdr->ipv6)
+		err = bpf_tcp_raw_check_syncookie_ipv6(hdr->ipv6, hdr->tcp);
+	else
+		return XDP_ABORTED;
+	if (err)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
+
+static __always_inline int syncookie_part1(void *ctx, void *data, void *data_end,
+					   struct header_pointers *hdr, bool xdp)
+{
+	int ret;
+
+	ret = tcp_dissect(data, data_end, hdr);
+	if (ret != XDP_TX)
+		return ret;
+
+	ret = tcp_lookup(ctx, hdr, xdp);
+	if (ret != XDP_TX)
+		return ret;
+
+	/* Packet is TCP and doesn't belong to an established connection. */
+
+	if ((hdr->tcp->syn ^ hdr->tcp->ack) != 1)
+		return XDP_DROP;
+
+	/* Grow the TCP header to TCP_MAXLEN to be able to pass any hdr->tcp_len
+	 * to bpf_tcp_raw_gen_syncookie_ipv{4,6} and pass the verifier.
+	 */
+	if (xdp) {
+		if (bpf_xdp_adjust_tail(ctx, TCP_MAXLEN - hdr->tcp_len))
+			return XDP_ABORTED;
+	} else {
+		/* Without volatile the verifier throws this error:
+		 * R9 32-bit pointer arithmetic prohibited
+		 */
+		volatile u64 old_len = data_end - data;
+
+		if (bpf_skb_change_tail(ctx, old_len + TCP_MAXLEN - hdr->tcp_len, 0))
+			return XDP_ABORTED;
+	}
+
+	return XDP_TX;
+}
+
+static __always_inline int syncookie_part2(void *ctx, void *data, void *data_end,
+					   struct header_pointers *hdr, bool xdp)
+{
+	if (hdr->ipv4) {
+		hdr->eth = data;
+		hdr->ipv4 = (void *)hdr->eth + sizeof(*hdr->eth);
+		/* IPV4_MAXLEN is needed when calculating checksum.
+		 * At least sizeof(struct iphdr) is needed here to access ihl.
+		 */
+		if ((void *)hdr->ipv4 + IPV4_MAXLEN > data_end)
+			return XDP_ABORTED;
+		hdr->tcp = (void *)hdr->ipv4 + hdr->ipv4->ihl * 4;
+	} else if (hdr->ipv6) {
+		hdr->eth = data;
+		hdr->ipv6 = (void *)hdr->eth + sizeof(*hdr->eth);
+		hdr->tcp = (void *)hdr->ipv6 + sizeof(*hdr->ipv6);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	if ((void *)hdr->tcp + TCP_MAXLEN > data_end)
+		return XDP_ABORTED;
+
+	/* We run out of registers, tcp_len gets spilled to the stack, and the
+	 * verifier forgets its min and max values checked above in tcp_dissect.
+	 */
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	if (hdr->tcp_len < sizeof(*hdr->tcp))
+		return XDP_ABORTED;
+
+	return hdr->tcp->syn ? syncookie_handle_syn(hdr, ctx, data, data_end, xdp) :
+			       syncookie_handle_ack(hdr);
+}
+
+SEC("xdp")
+int syncookie_xdp(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct header_pointers hdr;
+	int ret;
+
+	ret = syncookie_part1(ctx, data, data_end, &hdr, true);
+	if (ret != XDP_TX)
+		return ret;
+
+	data_end = (void *)(long)ctx->data_end;
+	data = (void *)(long)ctx->data;
+
+	return syncookie_part2(ctx, data, data_end, &hdr, true);
+}
+
+SEC("tc")
+int syncookie_tc(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct header_pointers hdr;
+	int ret;
+
+	ret = syncookie_part1(skb, data, data_end, &hdr, false);
+	if (ret != XDP_TX)
+		return ret == XDP_PASS ? TC_ACT_OK : TC_ACT_SHOT;
+
+	data_end = (void *)(long)skb->data_end;
+	data = (void *)(long)skb->data;
+
+	ret = syncookie_part2(skb, data, data_end, &hdr, false);
+	switch (ret) {
+	case XDP_PASS:
+		return TC_ACT_OK;
+	case XDP_TX:
+		return bpf_redirect(skb->ifindex, 0);
+	default:
+		return TC_ACT_SHOT;
+	}
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdp_tx.c b/tools/testing/selftests/bpf/progs/xdp_tx.c
new file mode 100644
index 000000000000..5f725c720e00
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_tx.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int xdp_tx(struct xdp_md *xdp)
+{
+	return XDP_TX;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdping_kern.c b/tools/testing/selftests/bpf/progs/xdping_kern.c
new file mode 100644
index 000000000000..44e2b0ef23ae
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdping_kern.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. */
+
+#define KBUILD_MODNAME "foo"
+#include <stddef.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <linux/icmp.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#include "bpf_compiler.h"
+#include "xdping.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 256);
+	__type(key, __u32);
+	__type(value, struct pinginfo);
+} ping_map SEC(".maps");
+
+static __always_inline void swap_src_dst_mac(void *data)
+{
+	unsigned short *p = data;
+	unsigned short dst[3];
+
+	dst[0] = p[0];
+	dst[1] = p[1];
+	dst[2] = p[2];
+	p[0] = p[3];
+	p[1] = p[4];
+	p[2] = p[5];
+	p[3] = dst[0];
+	p[4] = dst[1];
+	p[5] = dst[2];
+}
+
+static __always_inline __u16 csum_fold_helper(__wsum sum)
+{
+	sum = (sum & 0xffff) + (sum >> 16);
+	return ~((sum & 0xffff) + (sum >> 16));
+}
+
+static __always_inline __u16 ipv4_csum(void *data_start, int data_size)
+{
+	__wsum sum;
+
+	sum = bpf_csum_diff(0, 0, data_start, data_size, 0);
+	return csum_fold_helper(sum);
+}
+
+#define ICMP_ECHO_LEN		64
+
+static __always_inline int icmp_check(struct xdp_md *ctx, int type)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct ethhdr *eth = data;
+	struct icmphdr *icmph;
+	struct iphdr *iph;
+
+	if (data + sizeof(*eth) + sizeof(*iph) + ICMP_ECHO_LEN > data_end)
+		return XDP_PASS;
+
+	if (eth->h_proto != bpf_htons(ETH_P_IP))
+		return XDP_PASS;
+
+	iph = data + sizeof(*eth);
+
+	if (iph->protocol != IPPROTO_ICMP)
+		return XDP_PASS;
+
+	if (bpf_ntohs(iph->tot_len) - sizeof(*iph) != ICMP_ECHO_LEN)
+		return XDP_PASS;
+
+	icmph = data + sizeof(*eth) + sizeof(*iph);
+
+	if (icmph->type != type)
+		return XDP_PASS;
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int xdping_client(struct xdp_md *ctx)
+{
+	void *data = (void *)(long)ctx->data;
+	struct pinginfo *pinginfo = NULL;
+	struct ethhdr *eth = data;
+	struct icmphdr *icmph;
+	struct iphdr *iph;
+	__u64 recvtime;
+	__be32 raddr;
+	__be16 seq;
+	int ret;
+	__u8 i;
+
+	ret = icmp_check(ctx, ICMP_ECHOREPLY);
+
+	if (ret != XDP_TX)
+		return ret;
+
+	iph = data + sizeof(*eth);
+	icmph = data + sizeof(*eth) + sizeof(*iph);
+	raddr = iph->saddr;
+
+	/* Record time reply received. */
+	recvtime = bpf_ktime_get_ns();
+	pinginfo = bpf_map_lookup_elem(&ping_map, &raddr);
+	if (!pinginfo || pinginfo->seq != icmph->un.echo.sequence)
+		return XDP_PASS;
+
+	if (pinginfo->start) {
+		__pragma_loop_unroll_full
+		for (i = 0; i < XDPING_MAX_COUNT; i++) {
+			if (pinginfo->times[i] == 0)
+				break;
+		}
+		/* verifier is fussy here... */
+		if (i < XDPING_MAX_COUNT) {
+			pinginfo->times[i] = recvtime -
+					     pinginfo->start;
+			pinginfo->start = 0;
+			i++;
+		}
+		/* No more space for values? */
+		if (i == pinginfo->count || i == XDPING_MAX_COUNT)
+			return XDP_PASS;
+	}
+
+	/* Now convert reply back into echo request. */
+	swap_src_dst_mac(data);
+	iph->saddr = iph->daddr;
+	iph->daddr = raddr;
+	icmph->type = ICMP_ECHO;
+	seq = bpf_htons(bpf_ntohs(icmph->un.echo.sequence) + 1);
+	icmph->un.echo.sequence = seq;
+	icmph->checksum = 0;
+	icmph->checksum = ipv4_csum(icmph, ICMP_ECHO_LEN);
+
+	pinginfo->seq = seq;
+	pinginfo->start = bpf_ktime_get_ns();
+
+	return XDP_TX;
+}
+
+SEC("xdp")
+int xdping_server(struct xdp_md *ctx)
+{
+	void *data = (void *)(long)ctx->data;
+	struct ethhdr *eth = data;
+	struct icmphdr *icmph;
+	struct iphdr *iph;
+	__be32 raddr;
+	int ret;
+
+	ret = icmp_check(ctx, ICMP_ECHO);
+
+	if (ret != XDP_TX)
+		return ret;
+
+	iph = data + sizeof(*eth);
+	icmph = data + sizeof(*eth) + sizeof(*iph);
+	raddr = iph->saddr;
+
+	/* Now convert request into echo reply. */
+	swap_src_dst_mac(data);
+	iph->saddr = iph->daddr;
+	iph->daddr = raddr;
+	icmph->type = ICMP_ECHOREPLY;
+	icmph->checksum = 0;
+	icmph->checksum = ipv4_csum(icmph, ICMP_ECHO_LEN);
+
+	return XDP_TX;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xdpwall.c b/tools/testing/selftests/bpf/progs/xdpwall.c
new file mode 100644
index 000000000000..c2dd0c28237a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdpwall.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2021 Facebook */
+#include <stdbool.h>
+#include <stdint.h>
+#include <linux/stddef.h>
+#include <linux/if_ether.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/bpf.h>
+#include <linux/types.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+enum pkt_parse_err {
+	NO_ERR,
+	BAD_IP6_HDR,
+	BAD_IP4GUE_HDR,
+	BAD_IP6GUE_HDR,
+};
+
+enum pkt_flag {
+	TUNNEL = 0x1,
+	TCP_SYN = 0x2,
+	QUIC_INITIAL_FLAG = 0x4,
+	TCP_ACK = 0x8,
+	TCP_RST = 0x10
+};
+
+struct v4_lpm_key {
+	__u32 prefixlen;
+	__u32 src;
+};
+
+struct v4_lpm_val {
+	struct v4_lpm_key key;
+	__u8 val;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 16);
+	__type(key, struct in6_addr);
+	__type(value, bool);
+} v6_addr_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 16);
+	__type(key, __u32);
+	__type(value, bool);
+} v4_addr_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_LPM_TRIE);
+	__uint(max_entries, 16);
+	__uint(key_size, sizeof(struct v4_lpm_key));
+	__uint(value_size, sizeof(struct v4_lpm_val));
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+} v4_lpm_val_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 16);
+	__type(key, int);
+	__type(value, __u8);
+} tcp_port_map SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 16);
+	__type(key, int);
+	__type(value, __u16);
+} udp_port_map SEC(".maps");
+
+enum ip_type { V4 = 1, V6 = 2 };
+
+struct fw_match_info {
+	__u8 v4_src_ip_match;
+	__u8 v6_src_ip_match;
+	__u8 v4_src_prefix_match;
+	__u8 v4_dst_prefix_match;
+	__u8 tcp_dp_match;
+	__u16 udp_sp_match;
+	__u16 udp_dp_match;
+	bool is_tcp;
+	bool is_tcp_syn;
+};
+
+struct pkt_info {
+	enum ip_type type;
+	union {
+		struct iphdr *ipv4;
+		struct ipv6hdr *ipv6;
+	} ip;
+	int sport;
+	int dport;
+	__u16 trans_hdr_offset;
+	__u8 proto;
+	__u8 flags;
+};
+
+static __always_inline struct ethhdr *parse_ethhdr(void *data, void *data_end)
+{
+	struct ethhdr *eth = data;
+
+	if (eth + 1 > data_end)
+		return NULL;
+
+	return eth;
+}
+
+static __always_inline __u8 filter_ipv6_addr(const struct in6_addr *ipv6addr)
+{
+	__u8 *leaf;
+
+	leaf = bpf_map_lookup_elem(&v6_addr_map, ipv6addr);
+
+	return leaf ? *leaf : 0;
+}
+
+static __always_inline __u8 filter_ipv4_addr(const __u32 ipaddr)
+{
+	__u8 *leaf;
+
+	leaf = bpf_map_lookup_elem(&v4_addr_map, &ipaddr);
+
+	return leaf ? *leaf : 0;
+}
+
+static __always_inline __u8 filter_ipv4_lpm(const __u32 ipaddr)
+{
+	struct v4_lpm_key v4_key = {};
+	struct v4_lpm_val *lpm_val;
+
+	v4_key.src = ipaddr;
+	v4_key.prefixlen = 32;
+
+	lpm_val = bpf_map_lookup_elem(&v4_lpm_val_map, &v4_key);
+
+	return lpm_val ? lpm_val->val : 0;
+}
+
+
+static __always_inline void
+filter_src_dst_ip(struct pkt_info* info, struct fw_match_info* match_info)
+{
+	if (info->type == V6) {
+		match_info->v6_src_ip_match =
+			filter_ipv6_addr(&info->ip.ipv6->saddr);
+	} else if (info->type == V4) {
+		match_info->v4_src_ip_match =
+			filter_ipv4_addr(info->ip.ipv4->saddr);
+		match_info->v4_src_prefix_match =
+			filter_ipv4_lpm(info->ip.ipv4->saddr);
+		match_info->v4_dst_prefix_match =
+			filter_ipv4_lpm(info->ip.ipv4->daddr);
+	}
+}
+
+static __always_inline void *
+get_transport_hdr(__u16 offset, void *data, void *data_end)
+{
+	if (offset > 255 || data + offset > data_end)
+		return NULL;
+
+	return data + offset;
+}
+
+static __always_inline bool tcphdr_only_contains_flag(struct tcphdr *tcp,
+						      __u32 FLAG)
+{
+	return (tcp_flag_word(tcp) &
+		(TCP_FLAG_ACK | TCP_FLAG_RST | TCP_FLAG_SYN | TCP_FLAG_FIN)) == FLAG;
+}
+
+static __always_inline void set_tcp_flags(struct pkt_info *info,
+					  struct tcphdr *tcp) {
+	if (tcphdr_only_contains_flag(tcp, TCP_FLAG_SYN))
+		info->flags |= TCP_SYN;
+	else if (tcphdr_only_contains_flag(tcp, TCP_FLAG_ACK))
+		info->flags |= TCP_ACK;
+	else if (tcphdr_only_contains_flag(tcp, TCP_FLAG_RST))
+		info->flags |= TCP_RST;
+}
+
+static __always_inline bool
+parse_tcp(struct pkt_info *info, void *transport_hdr, void *data_end)
+{
+	struct tcphdr *tcp = transport_hdr;
+
+	if (tcp + 1 > data_end)
+		return false;
+
+	info->sport = bpf_ntohs(tcp->source);
+	info->dport = bpf_ntohs(tcp->dest);
+	set_tcp_flags(info, tcp);
+
+	return true;
+}
+
+static __always_inline bool
+parse_udp(struct pkt_info *info, void *transport_hdr, void *data_end)
+{
+	struct udphdr *udp = transport_hdr;
+
+	if (udp + 1 > data_end)
+		return false;
+
+	info->sport = bpf_ntohs(udp->source);
+	info->dport = bpf_ntohs(udp->dest);
+
+	return true;
+}
+
+static __always_inline __u8 filter_tcp_port(int port)
+{
+	__u8 *leaf = bpf_map_lookup_elem(&tcp_port_map, &port);
+
+	return leaf ? *leaf : 0;
+}
+
+static __always_inline __u16 filter_udp_port(int port)
+{
+	__u16 *leaf = bpf_map_lookup_elem(&udp_port_map, &port);
+
+	return leaf ? *leaf : 0;
+}
+
+static __always_inline bool
+filter_transport_hdr(void *transport_hdr, void *data_end,
+		     struct pkt_info *info, struct fw_match_info *match_info)
+{
+	if (info->proto == IPPROTO_TCP) {
+		if (!parse_tcp(info, transport_hdr, data_end))
+			return false;
+
+		match_info->is_tcp = true;
+		match_info->is_tcp_syn = (info->flags & TCP_SYN) > 0;
+
+		match_info->tcp_dp_match = filter_tcp_port(info->dport);
+	} else if (info->proto == IPPROTO_UDP) {
+		if (!parse_udp(info, transport_hdr, data_end))
+			return false;
+
+		match_info->udp_dp_match = filter_udp_port(info->dport);
+		match_info->udp_sp_match = filter_udp_port(info->sport);
+	}
+
+	return true;
+}
+
+static __always_inline __u8
+parse_gue_v6(struct pkt_info *info, struct ipv6hdr *ip6h, void *data_end)
+{
+	struct udphdr *udp = (struct udphdr *)(ip6h + 1);
+	void *encap_data = udp + 1;
+
+	if (udp + 1 > data_end)
+		return BAD_IP6_HDR;
+
+	if (udp->dest != bpf_htons(6666))
+		return NO_ERR;
+
+	info->flags |= TUNNEL;
+
+	if (encap_data + 1 > data_end)
+		return BAD_IP6GUE_HDR;
+
+	if (*(__u8 *)encap_data & 0x30) {
+		struct ipv6hdr *inner_ip6h = encap_data;
+
+		if (inner_ip6h + 1 > data_end)
+			return BAD_IP6GUE_HDR;
+
+		info->type = V6;
+		info->proto = inner_ip6h->nexthdr;
+		info->ip.ipv6 = inner_ip6h;
+		info->trans_hdr_offset += sizeof(struct ipv6hdr) + sizeof(struct udphdr);
+	} else {
+		struct iphdr *inner_ip4h = encap_data;
+
+		if (inner_ip4h + 1 > data_end)
+			return BAD_IP6GUE_HDR;
+
+		info->type = V4;
+		info->proto = inner_ip4h->protocol;
+		info->ip.ipv4 = inner_ip4h;
+		info->trans_hdr_offset += sizeof(struct iphdr) + sizeof(struct udphdr);
+	}
+
+	return NO_ERR;
+}
+
+static __always_inline __u8 parse_ipv6_gue(struct pkt_info *info,
+					   void *data, void *data_end)
+{
+	struct ipv6hdr *ip6h = data + sizeof(struct ethhdr);
+
+	if (ip6h + 1 > data_end)
+		return BAD_IP6_HDR;
+
+	info->proto = ip6h->nexthdr;
+	info->ip.ipv6 = ip6h;
+	info->type = V6;
+	info->trans_hdr_offset = sizeof(struct ethhdr) + sizeof(struct ipv6hdr);
+
+	if (info->proto == IPPROTO_UDP)
+		return parse_gue_v6(info, ip6h, data_end);
+
+	return NO_ERR;
+}
+
+SEC("xdp")
+int edgewall(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)(ctx->data_end);
+	void *data = (void *)(long)(ctx->data);
+	struct fw_match_info match_info = {};
+	struct pkt_info info = {};
+	void *transport_hdr;
+	struct ethhdr *eth;
+	bool filter_res;
+	__u32 proto;
+
+	eth = parse_ethhdr(data, data_end);
+	if (!eth)
+		return XDP_DROP;
+
+	proto = eth->h_proto;
+	if (proto != bpf_htons(ETH_P_IPV6))
+		return XDP_DROP;
+
+	if (parse_ipv6_gue(&info, data, data_end))
+		return XDP_DROP;
+
+	if (info.proto == IPPROTO_ICMPV6)
+		return XDP_PASS;
+
+	if (info.proto != IPPROTO_TCP && info.proto != IPPROTO_UDP)
+		return XDP_DROP;
+
+	filter_src_dst_ip(&info, &match_info);
+
+	transport_hdr = get_transport_hdr(info.trans_hdr_offset, data,
+					  data_end);
+	if (!transport_hdr)
+		return XDP_DROP;
+
+	filter_res = filter_transport_hdr(transport_hdr, data_end,
+					  &info, &match_info);
+	if (!filter_res)
+		return XDP_DROP;
+
+	if (match_info.is_tcp && !match_info.is_tcp_syn)
+		return XDP_PASS;
+
+	return XDP_DROP;
+}
+
+char LICENSE[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xfrm_info.c b/tools/testing/selftests/bpf/progs/xfrm_info.c
new file mode 100644
index 000000000000..a1d9f106c3f0
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xfrm_info.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BPF_NO_KFUNC_PROTOTYPES
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+
+struct bpf_xfrm_info___local {
+	u32 if_id;
+	int link;
+} __attribute__((preserve_access_index));
+
+__u32 req_if_id;
+__u32 resp_if_id;
+
+int bpf_skb_set_xfrm_info(struct __sk_buff *skb_ctx,
+			  const struct bpf_xfrm_info___local *from) __ksym;
+int bpf_skb_get_xfrm_info(struct __sk_buff *skb_ctx,
+			  struct bpf_xfrm_info___local *to) __ksym;
+
+SEC("tc")
+int set_xfrm_info(struct __sk_buff *skb)
+{
+	struct bpf_xfrm_info___local info = { .if_id = req_if_id };
+
+	return bpf_skb_set_xfrm_info(skb, &info) ? TC_ACT_SHOT : TC_ACT_UNSPEC;
+}
+
+SEC("tc")
+int get_xfrm_info(struct __sk_buff *skb)
+{
+	struct bpf_xfrm_info___local info = {};
+
+	if (bpf_skb_get_xfrm_info(skb, &info) < 0)
+		return TC_ACT_SHOT;
+
+	resp_if_id = info.if_id;
+
+	return TC_ACT_UNSPEC;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c
new file mode 100644
index 000000000000..683306db8594
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xsk_xdp_progs.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Intel */
+
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/errno.h>
+#include "xsk_xdp_common.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_XSKMAP);
+	__uint(max_entries, 2);
+	__uint(key_size, sizeof(int));
+	__uint(value_size, sizeof(int));
+} xsk SEC(".maps");
+
+static unsigned int idx;
+int adjust_value = 0;
+int count = 0;
+
+SEC("xdp.frags") int xsk_def_prog(struct xdp_md *xdp)
+{
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp.frags") int xsk_xdp_drop(struct xdp_md *xdp)
+{
+	/* Drop every other packet */
+	if (idx++ % 2)
+		return XDP_DROP;
+
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp.frags") int xsk_xdp_populate_metadata(struct xdp_md *xdp)
+{
+	void *data, *data_meta;
+	struct xdp_info *meta;
+	int err;
+
+	/* Reserve enough for all custom metadata. */
+	err = bpf_xdp_adjust_meta(xdp, -(int)sizeof(struct xdp_info));
+	if (err)
+		return XDP_DROP;
+
+	data = (void *)(long)xdp->data;
+	data_meta = (void *)(long)xdp->data_meta;
+
+	if (data_meta + sizeof(struct xdp_info) > data)
+		return XDP_DROP;
+
+	meta = data_meta;
+	meta->count = count++;
+
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+SEC("xdp") int xsk_xdp_shared_umem(struct xdp_md *xdp)
+{
+	void *data = (void *)(long)xdp->data;
+	void *data_end = (void *)(long)xdp->data_end;
+	struct ethhdr *eth = data;
+
+	if (eth + 1 > data_end)
+		return XDP_DROP;
+
+	/* Redirecting packets based on the destination MAC address */
+	idx = ((unsigned int)(eth->h_dest[5])) / 2;
+	if (idx > MAX_SOCKETS)
+		return XDP_DROP;
+
+	return bpf_redirect_map(&xsk, idx, XDP_DROP);
+}
+
+SEC("xdp.frags") int xsk_xdp_adjust_tail(struct xdp_md *xdp)
+{
+	__u32 buff_len, curr_buff_len;
+	int ret;
+
+	buff_len = bpf_xdp_get_buff_len(xdp);
+	if (buff_len == 0)
+		return XDP_DROP;
+
+	ret = bpf_xdp_adjust_tail(xdp, adjust_value);
+	if (ret < 0) {
+		/* Handle unsupported cases */
+		if (ret == -EOPNOTSUPP) {
+			/* Set adjust_value to -EOPNOTSUPP to indicate to userspace that this case
+			 * is unsupported
+			 */
+			adjust_value = -EOPNOTSUPP;
+			return bpf_redirect_map(&xsk, 0, XDP_DROP);
+		}
+
+		return XDP_DROP;
+	}
+
+	curr_buff_len = bpf_xdp_get_buff_len(xdp);
+	if (curr_buff_len != buff_len + adjust_value)
+		return XDP_DROP;
+
+	if (curr_buff_len > buff_len) {
+		__u32 *pkt_data = (void *)(long)xdp->data;
+		__u32 len, words_to_end, seq_num;
+
+		len = curr_buff_len - PKT_HDR_ALIGN;
+		words_to_end = len / sizeof(*pkt_data) - 1;
+		seq_num = words_to_end;
+
+		/* Convert sequence number to network byte order. Store this in the last 4 bytes of
+		 * the packet. Use 'adjust_value' to determine the position at the end of the
+		 * packet for storing the sequence number.
+		 */
+		seq_num = __constant_htonl(words_to_end);
+		bpf_xdp_store_bytes(xdp, curr_buff_len - sizeof(seq_num), &seq_num,
+				    sizeof(seq_num));
+	}
+
+	return bpf_redirect_map(&xsk, 0, XDP_DROP);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/sdt-config.h b/tools/testing/selftests/bpf/sdt-config.h
new file mode 100644
index 000000000000..733045a52771
--- /dev/null
+++ b/tools/testing/selftests/bpf/sdt-config.h
@@ -0,0 +1,6 @@
+/* includes/sys/sdt-config.h.  Generated from sdt-config.h.in by configure.
+
+   This file just defines _SDT_ASM_SECTION_AUTOGROUP_SUPPORT to 0 or 1 to
+   indicate whether the assembler supports "?" in .pushsection directives.  */
+
+#define _SDT_ASM_SECTION_AUTOGROUP_SUPPORT 1
diff --git a/tools/testing/selftests/bpf/sdt.h b/tools/testing/selftests/bpf/sdt.h
new file mode 100644
index 000000000000..1fcfa5160231
--- /dev/null
+++ b/tools/testing/selftests/bpf/sdt.h
@@ -0,0 +1,515 @@
+/* <sys/sdt.h> - Systemtap static probe definition macros.
+
+   This file is dedicated to the public domain, pursuant to CC0
+   (https://creativecommons.org/publicdomain/zero/1.0/)
+*/
+
+#ifndef _SYS_SDT_H
+#define _SYS_SDT_H    1
+
+/*
+  This file defines a family of macros
+
+       STAP_PROBEn(op1, ..., opn)
+
+  that emit a nop into the instruction stream, and some data into an auxiliary
+  note section.  The data in the note section describes the operands, in terms
+  of size and location.  Each location is encoded as assembler operand string.
+  Consumer tools such as gdb or systemtap insert breakpoints on top of
+  the nop, and decode the location operand-strings, like an assembler,
+  to find the values being passed.
+
+  The operand strings are selected by the compiler for each operand.
+  They are constrained by gcc inline-assembler codes.  The default is:
+
+  #define STAP_SDT_ARG_CONSTRAINT nor
+
+  This is a good default if the operands tend to be integral and
+  moderate in number (smaller than number of registers).  In other
+  cases, the compiler may report "'asm' requires impossible reload" or
+  similar.  In this case, consider simplifying the macro call (fewer
+  and simpler operands), reduce optimization, or override the default
+  constraints string via:
+
+  #define STAP_SDT_ARG_CONSTRAINT g
+  #include <sys/sdt.h>
+
+  See also:
+  https://sourceware.org/systemtap/wiki/UserSpaceProbeImplementation
+  https://gcc.gnu.org/onlinedocs/gcc/Constraints.html
+ */
+
+
+
+#ifdef __ASSEMBLER__
+# define _SDT_PROBE(provider, name, n, arglist)	\
+  _SDT_ASM_BODY(provider, name, _SDT_ASM_SUBSTR_1, (_SDT_DEPAREN_##n arglist)) \
+  _SDT_ASM_BASE
+# define _SDT_ASM_1(x)			x;
+# define _SDT_ASM_2(a, b)		a,b;
+# define _SDT_ASM_3(a, b, c)		a,b,c;
+# define _SDT_ASM_5(a, b, c, d, e)	a,b,c,d,e;
+# define _SDT_ASM_STRING_1(x)		.asciz #x;
+# define _SDT_ASM_SUBSTR_1(x)		.ascii #x;
+# define _SDT_DEPAREN_0()				/* empty */
+# define _SDT_DEPAREN_1(a)				a
+# define _SDT_DEPAREN_2(a,b)				a b
+# define _SDT_DEPAREN_3(a,b,c)				a b c
+# define _SDT_DEPAREN_4(a,b,c,d)			a b c d
+# define _SDT_DEPAREN_5(a,b,c,d,e)			a b c d e
+# define _SDT_DEPAREN_6(a,b,c,d,e,f)			a b c d e f
+# define _SDT_DEPAREN_7(a,b,c,d,e,f,g)			a b c d e f g
+# define _SDT_DEPAREN_8(a,b,c,d,e,f,g,h)		a b c d e f g h
+# define _SDT_DEPAREN_9(a,b,c,d,e,f,g,h,i)		a b c d e f g h i
+# define _SDT_DEPAREN_10(a,b,c,d,e,f,g,h,i,j)		a b c d e f g h i j
+# define _SDT_DEPAREN_11(a,b,c,d,e,f,g,h,i,j,k)		a b c d e f g h i j k
+# define _SDT_DEPAREN_12(a,b,c,d,e,f,g,h,i,j,k,l)	a b c d e f g h i j k l
+#else
+#if defined _SDT_HAS_SEMAPHORES
+#define _SDT_NOTE_SEMAPHORE_USE(provider, name) \
+  __asm__ __volatile__ ("" :: "m" (provider##_##name##_semaphore));
+#else
+#define _SDT_NOTE_SEMAPHORE_USE(provider, name)
+#endif
+
+# define _SDT_PROBE(provider, name, n, arglist) \
+  do {									    \
+    _SDT_NOTE_SEMAPHORE_USE(provider, name); \
+    __asm__ __volatile__ (_SDT_ASM_BODY(provider, name, _SDT_ASM_ARGS, (n)) \
+			  :: _SDT_ASM_OPERANDS_##n arglist);		    \
+    __asm__ __volatile__ (_SDT_ASM_BASE);				    \
+  } while (0)
+# define _SDT_S(x)			#x
+# define _SDT_ASM_1(x)			_SDT_S(x) "\n"
+# define _SDT_ASM_2(a, b)		_SDT_S(a) "," _SDT_S(b) "\n"
+# define _SDT_ASM_3(a, b, c)		_SDT_S(a) "," _SDT_S(b) "," \
+					_SDT_S(c) "\n"
+# define _SDT_ASM_5(a, b, c, d, e)	_SDT_S(a) "," _SDT_S(b) "," \
+					_SDT_S(c) "," _SDT_S(d) "," \
+					_SDT_S(e) "\n"
+# define _SDT_ASM_ARGS(n)		_SDT_ASM_TEMPLATE_##n
+# define _SDT_ASM_STRING_1(x)		_SDT_ASM_1(.asciz #x)
+# define _SDT_ASM_SUBSTR_1(x)		_SDT_ASM_1(.ascii #x)
+
+# define _SDT_ARGFMT(no)                _SDT_ASM_1(_SDT_SIGN %n[_SDT_S##no]) \
+                                        _SDT_ASM_1(_SDT_SIZE %n[_SDT_S##no]) \
+                                        _SDT_ASM_1(_SDT_TYPE %n[_SDT_S##no]) \
+                                        _SDT_ASM_SUBSTR(_SDT_ARGTMPL(_SDT_A##no))
+
+
+# ifndef STAP_SDT_ARG_CONSTRAINT
+# if defined __powerpc__
+# define STAP_SDT_ARG_CONSTRAINT        nZr
+# elif defined __arm__
+# define STAP_SDT_ARG_CONSTRAINT        g
+# elif defined __loongarch__
+# define STAP_SDT_ARG_CONSTRAINT        nmr
+# else
+# define STAP_SDT_ARG_CONSTRAINT        nor
+# endif
+# endif
+
+# define _SDT_STRINGIFY(x)              #x
+# define _SDT_ARG_CONSTRAINT_STRING(x)  _SDT_STRINGIFY(x)
+/* _SDT_S encodes the size and type as 0xSSTT which is decoded by the assembler
+   macros _SDT_SIZE and _SDT_TYPE */
+# define _SDT_ARG(n, x)				    \
+  [_SDT_S##n] "n" ((_SDT_ARGSIGNED (x) ? (int)-1 : 1) * (-(((int) _SDT_ARGSIZE (x)) << 8) + (-(0x7f & __builtin_classify_type (x))))), \
+  [_SDT_A##n] _SDT_ARG_CONSTRAINT_STRING (STAP_SDT_ARG_CONSTRAINT) (_SDT_ARGVAL (x))
+#endif
+#define _SDT_ASM_STRING(x)		_SDT_ASM_STRING_1(x)
+#define _SDT_ASM_SUBSTR(x)		_SDT_ASM_SUBSTR_1(x)
+
+#define _SDT_ARGARRAY(x)	(__builtin_classify_type (x) == 14	\
+				 || __builtin_classify_type (x) == 5)
+
+#ifdef __cplusplus
+# define _SDT_ARGSIGNED(x)	(!_SDT_ARGARRAY (x) \
+				 && __sdt_type<__typeof (x)>::__sdt_signed)
+# define _SDT_ARGSIZE(x)	(_SDT_ARGARRAY (x) \
+				 ? sizeof (void *) : sizeof (x))
+# define _SDT_ARGVAL(x)		(x)
+
+# include <cstddef>
+
+template<typename __sdt_T>
+struct __sdt_type
+{
+  static const bool __sdt_signed = false;
+};
+  
+#define __SDT_ALWAYS_SIGNED(T) \
+template<> struct __sdt_type<T> { static const bool __sdt_signed = true; };
+#define __SDT_COND_SIGNED(T,CT)						\
+template<> struct __sdt_type<T> { static const bool __sdt_signed = ((CT)(-1) < 1); };
+__SDT_ALWAYS_SIGNED(signed char)
+__SDT_ALWAYS_SIGNED(short)
+__SDT_ALWAYS_SIGNED(int)
+__SDT_ALWAYS_SIGNED(long)
+__SDT_ALWAYS_SIGNED(long long)
+__SDT_ALWAYS_SIGNED(volatile signed char)
+__SDT_ALWAYS_SIGNED(volatile short)
+__SDT_ALWAYS_SIGNED(volatile int)
+__SDT_ALWAYS_SIGNED(volatile long)
+__SDT_ALWAYS_SIGNED(volatile long long)
+__SDT_ALWAYS_SIGNED(const signed char)
+__SDT_ALWAYS_SIGNED(const short)
+__SDT_ALWAYS_SIGNED(const int)
+__SDT_ALWAYS_SIGNED(const long)
+__SDT_ALWAYS_SIGNED(const long long)
+__SDT_ALWAYS_SIGNED(const volatile signed char)
+__SDT_ALWAYS_SIGNED(const volatile short)
+__SDT_ALWAYS_SIGNED(const volatile int)
+__SDT_ALWAYS_SIGNED(const volatile long)
+__SDT_ALWAYS_SIGNED(const volatile long long)
+__SDT_COND_SIGNED(char, char)
+__SDT_COND_SIGNED(wchar_t, wchar_t)
+__SDT_COND_SIGNED(volatile char, char)
+__SDT_COND_SIGNED(volatile wchar_t, wchar_t)
+__SDT_COND_SIGNED(const char, char)
+__SDT_COND_SIGNED(const wchar_t, wchar_t)
+__SDT_COND_SIGNED(const volatile char, char)
+__SDT_COND_SIGNED(const volatile wchar_t, wchar_t)
+#if defined (__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 4))
+/* __SDT_COND_SIGNED(char16_t) */
+/* __SDT_COND_SIGNED(char32_t) */
+#endif
+
+template<typename __sdt_E>
+struct __sdt_type<__sdt_E[]> : public __sdt_type<__sdt_E *> {};
+
+template<typename __sdt_E, size_t __sdt_N>
+struct __sdt_type<__sdt_E[__sdt_N]> : public __sdt_type<__sdt_E *> {};
+
+#elif !defined(__ASSEMBLER__)
+__extension__ extern unsigned long long __sdt_unsp;
+# define _SDT_ARGINTTYPE(x)						\
+  __typeof (__builtin_choose_expr (((__builtin_classify_type (x)	\
+				     + 3) & -4) == 4, (x), 0U))
+# define _SDT_ARGSIGNED(x)						\
+  (!__extension__							\
+   (__builtin_constant_p ((((unsigned long long)			\
+			    (_SDT_ARGINTTYPE (x)) __sdt_unsp)		\
+			   & ((unsigned long long)1 << (sizeof (unsigned long long)	\
+				       * __CHAR_BIT__ - 1))) == 0)	\
+    || (_SDT_ARGINTTYPE (x)) -1 > (_SDT_ARGINTTYPE (x)) 0))
+# define _SDT_ARGSIZE(x)	\
+  (_SDT_ARGARRAY (x) ? sizeof (void *) : sizeof (x))
+# define _SDT_ARGVAL(x)		(x)
+#endif
+
+#if defined __powerpc__ || defined __powerpc64__
+# define _SDT_ARGTMPL(id)	%I[id]%[id]
+#elif defined __i386__
+# define _SDT_ARGTMPL(id)	%k[id]  /* gcc.gnu.org/PR80115 sourceware.org/PR24541 */
+#else
+# define _SDT_ARGTMPL(id)	%[id]
+#endif
+
+/* NB: gdb PR24541 highlighted an unspecified corner of the sdt.h
+   operand note format.
+
+   The named register may be a longer or shorter (!) alias for the
+   storage where the value in question is found.  For example, on
+   i386, 64-bit value may be put in register pairs, and the register
+   name stored would identify just one of them.  Previously, gcc was
+   asked to emit the %w[id] (16-bit alias of some registers holding
+   operands), even when a wider 32-bit value was used.
+
+   Bottom line: the byte-width given before the @ sign governs.  If
+   there is a mismatch between that width and that of the named
+   register, then a sys/sdt.h note consumer may need to employ
+   architecture-specific heuristics to figure out where the compiler
+   has actually put the complete value.
+*/
+
+#ifdef __LP64__
+# define _SDT_ASM_ADDR	.8byte
+#else
+# define _SDT_ASM_ADDR	.4byte
+#endif
+
+/* The ia64 and s390 nop instructions take an argument. */
+#if defined(__ia64__) || defined(__s390__) || defined(__s390x__)
+#define _SDT_NOP	nop 0
+#else
+#define _SDT_NOP	nop
+#endif
+
+#define _SDT_NOTE_NAME	"stapsdt"
+#define _SDT_NOTE_TYPE	3
+
+/* If the assembler supports the necessary feature, then we can play
+   nice with code in COMDAT sections, which comes up in C++ code.
+   Without that assembler support, some combinations of probe placements
+   in certain kinds of C++ code may produce link-time errors.  */
+#include "sdt-config.h"
+#if _SDT_ASM_SECTION_AUTOGROUP_SUPPORT
+# define _SDT_ASM_AUTOGROUP "?"
+#else
+# define _SDT_ASM_AUTOGROUP ""
+#endif
+
+#define _SDT_DEF_MACROS							     \
+	_SDT_ASM_1(.altmacro)						     \
+	_SDT_ASM_1(.macro _SDT_SIGN x)				     	     \
+	_SDT_ASM_3(.pushsection .note.stapsdt,"","note")		     \
+	_SDT_ASM_1(.iflt \\x)						     \
+	_SDT_ASM_1(.ascii "-")						     \
+	_SDT_ASM_1(.endif)						     \
+	_SDT_ASM_1(.popsection)						     \
+	_SDT_ASM_1(.endm)						     \
+	_SDT_ASM_1(.macro _SDT_SIZE_ x)					     \
+	_SDT_ASM_3(.pushsection .note.stapsdt,"","note")		     \
+	_SDT_ASM_1(.ascii "\x")						     \
+	_SDT_ASM_1(.popsection)						     \
+	_SDT_ASM_1(.endm)						     \
+	_SDT_ASM_1(.macro _SDT_SIZE x)					     \
+	_SDT_ASM_1(_SDT_SIZE_ %%((-(-\\x*((-\\x>0)-(-\\x<0))))>>8))	     \
+	_SDT_ASM_1(.endm)						     \
+	_SDT_ASM_1(.macro _SDT_TYPE_ x)				             \
+	_SDT_ASM_3(.pushsection .note.stapsdt,"","note")		     \
+	_SDT_ASM_2(.ifc 8,\\x)					     	     \
+	_SDT_ASM_1(.ascii "f")						     \
+	_SDT_ASM_1(.endif)						     \
+	_SDT_ASM_1(.ascii "@")						     \
+	_SDT_ASM_1(.popsection)						     \
+	_SDT_ASM_1(.endm)						     \
+	_SDT_ASM_1(.macro _SDT_TYPE x)				     	     \
+	_SDT_ASM_1(_SDT_TYPE_ %%((\\x)&(0xff)))			     \
+	_SDT_ASM_1(.endm)
+
+#define _SDT_UNDEF_MACROS						      \
+  _SDT_ASM_1(.purgem _SDT_SIGN)						      \
+  _SDT_ASM_1(.purgem _SDT_SIZE_)					      \
+  _SDT_ASM_1(.purgem _SDT_SIZE)						      \
+  _SDT_ASM_1(.purgem _SDT_TYPE_)					      \
+  _SDT_ASM_1(.purgem _SDT_TYPE)
+
+#define _SDT_ASM_BODY(provider, name, pack_args, args, ...)		      \
+  _SDT_DEF_MACROS							      \
+  _SDT_ASM_1(990:	_SDT_NOP)					      \
+  _SDT_ASM_3(		.pushsection .note.stapsdt,_SDT_ASM_AUTOGROUP,"note") \
+  _SDT_ASM_1(		.balign 4)					      \
+  _SDT_ASM_3(		.4byte 992f-991f, 994f-993f, _SDT_NOTE_TYPE)	      \
+  _SDT_ASM_1(991:	.asciz _SDT_NOTE_NAME)				      \
+  _SDT_ASM_1(992:	.balign 4)					      \
+  _SDT_ASM_1(993:	_SDT_ASM_ADDR 990b)				      \
+  _SDT_ASM_1(		_SDT_ASM_ADDR _.stapsdt.base)			      \
+  _SDT_SEMAPHORE(provider,name)						      \
+  _SDT_ASM_STRING(provider)						      \
+  _SDT_ASM_STRING(name)							      \
+  pack_args args							      \
+  _SDT_ASM_SUBSTR(\x00)							      \
+  _SDT_UNDEF_MACROS							      \
+  _SDT_ASM_1(994:	.balign 4)					      \
+  _SDT_ASM_1(		.popsection)
+
+#define _SDT_ASM_BASE							      \
+  _SDT_ASM_1(.ifndef _.stapsdt.base)					      \
+  _SDT_ASM_5(		.pushsection .stapsdt.base,"aG","progbits",	      \
+							.stapsdt.base,comdat) \
+  _SDT_ASM_1(		.weak _.stapsdt.base)				      \
+  _SDT_ASM_1(		.hidden _.stapsdt.base)				      \
+  _SDT_ASM_1(	_.stapsdt.base: .space 1)				      \
+  _SDT_ASM_2(		.size _.stapsdt.base, 1)			      \
+  _SDT_ASM_1(		.popsection)					      \
+  _SDT_ASM_1(.endif)
+
+#if defined _SDT_HAS_SEMAPHORES
+#define _SDT_SEMAPHORE(p,n) \
+	_SDT_ASM_1(		_SDT_ASM_ADDR p##_##n##_semaphore)
+#else
+#define _SDT_SEMAPHORE(p,n) _SDT_ASM_1(		_SDT_ASM_ADDR 0)
+#endif
+
+#define _SDT_ASM_BLANK _SDT_ASM_SUBSTR(\x20)
+#define _SDT_ASM_TEMPLATE_0		/* no arguments */
+#define _SDT_ASM_TEMPLATE_1		_SDT_ARGFMT(1)
+#define _SDT_ASM_TEMPLATE_2		_SDT_ASM_TEMPLATE_1 _SDT_ASM_BLANK _SDT_ARGFMT(2)
+#define _SDT_ASM_TEMPLATE_3		_SDT_ASM_TEMPLATE_2 _SDT_ASM_BLANK _SDT_ARGFMT(3)
+#define _SDT_ASM_TEMPLATE_4		_SDT_ASM_TEMPLATE_3 _SDT_ASM_BLANK _SDT_ARGFMT(4)
+#define _SDT_ASM_TEMPLATE_5		_SDT_ASM_TEMPLATE_4 _SDT_ASM_BLANK _SDT_ARGFMT(5)
+#define _SDT_ASM_TEMPLATE_6		_SDT_ASM_TEMPLATE_5 _SDT_ASM_BLANK _SDT_ARGFMT(6)
+#define _SDT_ASM_TEMPLATE_7		_SDT_ASM_TEMPLATE_6 _SDT_ASM_BLANK _SDT_ARGFMT(7)
+#define _SDT_ASM_TEMPLATE_8		_SDT_ASM_TEMPLATE_7 _SDT_ASM_BLANK _SDT_ARGFMT(8)
+#define _SDT_ASM_TEMPLATE_9		_SDT_ASM_TEMPLATE_8 _SDT_ASM_BLANK _SDT_ARGFMT(9)
+#define _SDT_ASM_TEMPLATE_10		_SDT_ASM_TEMPLATE_9 _SDT_ASM_BLANK _SDT_ARGFMT(10)
+#define _SDT_ASM_TEMPLATE_11		_SDT_ASM_TEMPLATE_10 _SDT_ASM_BLANK _SDT_ARGFMT(11)
+#define _SDT_ASM_TEMPLATE_12		_SDT_ASM_TEMPLATE_11 _SDT_ASM_BLANK _SDT_ARGFMT(12)
+#define _SDT_ASM_OPERANDS_0()		[__sdt_dummy] "g" (0)
+#define _SDT_ASM_OPERANDS_1(arg1)	_SDT_ARG(1, arg1)
+#define _SDT_ASM_OPERANDS_2(arg1, arg2) \
+  _SDT_ASM_OPERANDS_1(arg1), _SDT_ARG(2, arg2)
+#define _SDT_ASM_OPERANDS_3(arg1, arg2, arg3) \
+  _SDT_ASM_OPERANDS_2(arg1, arg2), _SDT_ARG(3, arg3)
+#define _SDT_ASM_OPERANDS_4(arg1, arg2, arg3, arg4) \
+  _SDT_ASM_OPERANDS_3(arg1, arg2, arg3), _SDT_ARG(4, arg4)
+#define _SDT_ASM_OPERANDS_5(arg1, arg2, arg3, arg4, arg5) \
+  _SDT_ASM_OPERANDS_4(arg1, arg2, arg3, arg4), _SDT_ARG(5, arg5)
+#define _SDT_ASM_OPERANDS_6(arg1, arg2, arg3, arg4, arg5, arg6) \
+  _SDT_ASM_OPERANDS_5(arg1, arg2, arg3, arg4, arg5), _SDT_ARG(6, arg6)
+#define _SDT_ASM_OPERANDS_7(arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
+  _SDT_ASM_OPERANDS_6(arg1, arg2, arg3, arg4, arg5, arg6), _SDT_ARG(7, arg7)
+#define _SDT_ASM_OPERANDS_8(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) \
+  _SDT_ASM_OPERANDS_7(arg1, arg2, arg3, arg4, arg5, arg6, arg7), \
+    _SDT_ARG(8, arg8)
+#define _SDT_ASM_OPERANDS_9(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9) \
+  _SDT_ASM_OPERANDS_8(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8), \
+    _SDT_ARG(9, arg9)
+#define _SDT_ASM_OPERANDS_10(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10) \
+  _SDT_ASM_OPERANDS_9(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9), \
+    _SDT_ARG(10, arg10)
+#define _SDT_ASM_OPERANDS_11(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11) \
+  _SDT_ASM_OPERANDS_10(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10), \
+    _SDT_ARG(11, arg11)
+#define _SDT_ASM_OPERANDS_12(arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11,arg12) \
+  _SDT_ASM_OPERANDS_11(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11), \
+    _SDT_ARG(12, arg12)
+
+/* These macros can be used in C, C++, or assembly code.
+   In assembly code the arguments should use normal assembly operand syntax.  */
+
+#define STAP_PROBE(provider, name) \
+  _SDT_PROBE(provider, name, 0, ())
+#define STAP_PROBE1(provider, name, arg1) \
+  _SDT_PROBE(provider, name, 1, (arg1))
+#define STAP_PROBE2(provider, name, arg1, arg2) \
+  _SDT_PROBE(provider, name, 2, (arg1, arg2))
+#define STAP_PROBE3(provider, name, arg1, arg2, arg3) \
+  _SDT_PROBE(provider, name, 3, (arg1, arg2, arg3))
+#define STAP_PROBE4(provider, name, arg1, arg2, arg3, arg4) \
+  _SDT_PROBE(provider, name, 4, (arg1, arg2, arg3, arg4))
+#define STAP_PROBE5(provider, name, arg1, arg2, arg3, arg4, arg5) \
+  _SDT_PROBE(provider, name, 5, (arg1, arg2, arg3, arg4, arg5))
+#define STAP_PROBE6(provider, name, arg1, arg2, arg3, arg4, arg5, arg6)	\
+  _SDT_PROBE(provider, name, 6, (arg1, arg2, arg3, arg4, arg5, arg6))
+#define STAP_PROBE7(provider, name, arg1, arg2, arg3, arg4, arg5, arg6, arg7) \
+  _SDT_PROBE(provider, name, 7, (arg1, arg2, arg3, arg4, arg5, arg6, arg7))
+#define STAP_PROBE8(provider,name,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8) \
+  _SDT_PROBE(provider, name, 8, (arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8))
+#define STAP_PROBE9(provider,name,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9)\
+  _SDT_PROBE(provider, name, 9, (arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9))
+#define STAP_PROBE10(provider,name,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10) \
+  _SDT_PROBE(provider, name, 10, \
+	     (arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10))
+#define STAP_PROBE11(provider,name,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11) \
+  _SDT_PROBE(provider, name, 11, \
+	     (arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11))
+#define STAP_PROBE12(provider,name,arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11,arg12) \
+  _SDT_PROBE(provider, name, 12, \
+	     (arg1,arg2,arg3,arg4,arg5,arg6,arg7,arg8,arg9,arg10,arg11,arg12))
+
+/* This STAP_PROBEV macro can be used in variadic scenarios, where the
+   number of probe arguments is not known until compile time.  Since
+   variadic macro support may vary with compiler options, you must
+   pre-#define SDT_USE_VARIADIC to enable this type of probe.
+
+   The trick to count __VA_ARGS__ was inspired by this post by
+   Laurent Deniau <laurent.deniau@cern.ch>:
+       http://groups.google.com/group/comp.std.c/msg/346fc464319b1ee5
+
+   Note that our _SDT_NARG is called with an extra 0 arg that's not
+   counted, so we don't have to worry about the behavior of macros
+   called without any arguments.  */
+
+#define _SDT_NARG(...) __SDT_NARG(__VA_ARGS__, 12,11,10,9,8,7,6,5,4,3,2,1,0)
+#define __SDT_NARG(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,_11,_12, N, ...) N
+#ifdef SDT_USE_VARIADIC
+#define _SDT_PROBE_N(provider, name, N, ...) \
+  _SDT_PROBE(provider, name, N, (__VA_ARGS__))
+#define STAP_PROBEV(provider, name, ...) \
+  _SDT_PROBE_N(provider, name, _SDT_NARG(0, ##__VA_ARGS__), ##__VA_ARGS__)
+#endif
+
+/* These macros are for use in asm statements.  You must compile
+   with -std=gnu99 or -std=c99 to use the STAP_PROBE_ASM macro.
+
+   The STAP_PROBE_ASM macro generates a quoted string to be used in the
+   template portion of the asm statement, concatenated with strings that
+   contain the actual assembly code around the probe site.
+
+   For example:
+
+	asm ("before\n"
+	     STAP_PROBE_ASM(provider, fooprobe, %eax 4(%esi))
+	     "after");
+
+   emits the assembly code for "before\nafter", with a probe in between.
+   The probe arguments are the %eax register, and the value of the memory
+   word located 4 bytes past the address in the %esi register.  Note that
+   because this is a simple asm, not a GNU C extended asm statement, these
+   % characters do not need to be doubled to generate literal %reg names.
+
+   In a GNU C extended asm statement, the probe arguments can be specified
+   using the macro STAP_PROBE_ASM_TEMPLATE(n) for n arguments.  The paired
+   macro STAP_PROBE_ASM_OPERANDS gives the C values of these probe arguments,
+   and appears in the input operand list of the asm statement.  For example:
+
+	asm ("someinsn %0,%1\n" // %0 is output operand, %1 is input operand
+	     STAP_PROBE_ASM(provider, fooprobe, STAP_PROBE_ASM_TEMPLATE(3))
+	     "otherinsn %[namedarg]"
+	     : "r" (outvar)
+	     : "g" (some_value), [namedarg] "i" (1234),
+	       STAP_PROBE_ASM_OPERANDS(3, some_value, some_ptr->field, 1234));
+
+    This is just like writing:
+
+	STAP_PROBE3(provider, fooprobe, some_value, some_ptr->field, 1234));
+
+    but the probe site is right between "someinsn" and "otherinsn".
+
+    The probe arguments in STAP_PROBE_ASM can be given as assembly
+    operands instead, even inside a GNU C extended asm statement.
+    Note that these can use operand templates like %0 or %[name],
+    and likewise they must write %%reg for a literal operand of %reg.  */
+
+#define _SDT_ASM_BODY_1(p,n,...) _SDT_ASM_BODY(p,n,_SDT_ASM_SUBSTR,(__VA_ARGS__))
+#define _SDT_ASM_BODY_2(p,n,...) _SDT_ASM_BODY(p,n,/*_SDT_ASM_STRING */,__VA_ARGS__)
+#define _SDT_ASM_BODY_N2(p,n,no,...) _SDT_ASM_BODY_ ## no(p,n,__VA_ARGS__)
+#define _SDT_ASM_BODY_N1(p,n,no,...) _SDT_ASM_BODY_N2(p,n,no,__VA_ARGS__)
+#define _SDT_ASM_BODY_N(p,n,...) _SDT_ASM_BODY_N1(p,n,_SDT_NARG(0, __VA_ARGS__),__VA_ARGS__)
+
+#if __STDC_VERSION__ >= 199901L
+# define STAP_PROBE_ASM(provider, name, ...)		\
+  _SDT_ASM_BODY_N(provider, name, __VA_ARGS__)					\
+  _SDT_ASM_BASE
+# define STAP_PROBE_ASM_OPERANDS(n, ...) _SDT_ASM_OPERANDS_##n(__VA_ARGS__)
+#else
+# define STAP_PROBE_ASM(provider, name, args)	\
+  _SDT_ASM_BODY(provider, name, /* _SDT_ASM_STRING */, (args))	\
+  _SDT_ASM_BASE
+#endif
+#define STAP_PROBE_ASM_TEMPLATE(n) _SDT_ASM_TEMPLATE_##n,"use _SDT_ASM_TEMPLATE_"
+
+
+/* DTrace compatible macro names.  */
+#define DTRACE_PROBE(provider,probe)		\
+  STAP_PROBE(provider,probe)
+#define DTRACE_PROBE1(provider,probe,parm1)	\
+  STAP_PROBE1(provider,probe,parm1)
+#define DTRACE_PROBE2(provider,probe,parm1,parm2)	\
+  STAP_PROBE2(provider,probe,parm1,parm2)
+#define DTRACE_PROBE3(provider,probe,parm1,parm2,parm3) \
+  STAP_PROBE3(provider,probe,parm1,parm2,parm3)
+#define DTRACE_PROBE4(provider,probe,parm1,parm2,parm3,parm4)	\
+  STAP_PROBE4(provider,probe,parm1,parm2,parm3,parm4)
+#define DTRACE_PROBE5(provider,probe,parm1,parm2,parm3,parm4,parm5)	\
+  STAP_PROBE5(provider,probe,parm1,parm2,parm3,parm4,parm5)
+#define DTRACE_PROBE6(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6) \
+  STAP_PROBE6(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6)
+#define DTRACE_PROBE7(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7) \
+  STAP_PROBE7(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7)
+#define DTRACE_PROBE8(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8) \
+  STAP_PROBE8(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8)
+#define DTRACE_PROBE9(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9) \
+  STAP_PROBE9(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9)
+#define DTRACE_PROBE10(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10) \
+  STAP_PROBE10(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10)
+#define DTRACE_PROBE11(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10,parm11) \
+  STAP_PROBE11(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10,parm11)
+#define DTRACE_PROBE12(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10,parm11,parm12) \
+  STAP_PROBE12(provider,probe,parm1,parm2,parm3,parm4,parm5,parm6,parm7,parm8,parm9,parm10,parm11,parm12)
+
+
+#endif /* sys/sdt.h */
diff --git a/tools/testing/selftests/bpf/settings b/tools/testing/selftests/bpf/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/bpf/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/bpf/task_local_storage_helpers.h b/tools/testing/selftests/bpf/task_local_storage_helpers.h
new file mode 100644
index 000000000000..281f86132766
--- /dev/null
+++ b/tools/testing/selftests/bpf/task_local_storage_helpers.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TASK_LOCAL_STORAGE_HELPER_H
+#define __TASK_LOCAL_STORAGE_HELPER_H
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+
+#ifndef __NR_pidfd_open
+#ifdef __alpha__
+#define __NR_pidfd_open 544
+#else
+#define __NR_pidfd_open 434
+#endif
+#endif
+
+static inline int sys_pidfd_open(pid_t pid, unsigned int flags)
+{
+	return syscall(__NR_pidfd_open, pid, flags);
+}
+
+#endif
diff --git a/tools/testing/selftests/bpf/test_bpftool.py b/tools/testing/selftests/bpf/test_bpftool.py
new file mode 100644
index 000000000000..1c2408ee1f5d
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool.py
@@ -0,0 +1,174 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 SUSE LLC.
+
+import collections
+import functools
+import json
+import os
+import socket
+import subprocess
+import unittest
+
+
+# Add the source tree of bpftool and /usr/local/sbin to PATH
+cur_dir = os.path.dirname(os.path.realpath(__file__))
+bpftool_dir = os.path.abspath(os.path.join(cur_dir, "..", "..", "..", "..",
+                                           "tools", "bpf", "bpftool"))
+os.environ["PATH"] = bpftool_dir + ":/usr/local/sbin:" + os.environ["PATH"]
+
+
+class IfaceNotFoundError(Exception):
+    pass
+
+
+class UnprivilegedUserError(Exception):
+    pass
+
+
+def _bpftool(args, json=True):
+    _args = ["bpftool"]
+    if json:
+        _args.append("-j")
+    _args.extend(args)
+
+    return subprocess.check_output(_args)
+
+
+def bpftool(args):
+    return _bpftool(args, json=False).decode("utf-8")
+
+
+def bpftool_json(args):
+    res = _bpftool(args)
+    return json.loads(res)
+
+
+def get_default_iface():
+    for iface in socket.if_nameindex():
+        if iface[1] != "lo":
+            return iface[1]
+    raise IfaceNotFoundError("Could not find any network interface to probe")
+
+
+def default_iface(f):
+    @functools.wraps(f)
+    def wrapper(*args, **kwargs):
+        iface = get_default_iface()
+        return f(*args, iface, **kwargs)
+    return wrapper
+
+DMESG_EMITTING_HELPERS = [
+        "bpf_probe_write_user",
+        "bpf_trace_printk",
+        "bpf_trace_vprintk",
+    ]
+
+class TestBpftool(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        if os.getuid() != 0:
+            raise UnprivilegedUserError(
+                "This test suite needs root privileges")
+
+    @default_iface
+    def test_feature_dev_json(self, iface):
+        unexpected_helpers = DMESG_EMITTING_HELPERS
+        expected_keys = [
+            "syscall_config",
+            "program_types",
+            "map_types",
+            "helpers",
+            "misc",
+        ]
+
+        res = bpftool_json(["feature", "probe", "dev", iface])
+        # Check if the result has all expected keys.
+        self.assertCountEqual(res.keys(), expected_keys)
+        # Check if unexpected helpers are not included in helpers probes
+        # result.
+        for helpers in res["helpers"].values():
+            for unexpected_helper in unexpected_helpers:
+                self.assertNotIn(unexpected_helper, helpers)
+
+    def test_feature_kernel(self):
+        test_cases = [
+            bpftool_json(["feature", "probe", "kernel"]),
+            bpftool_json(["feature", "probe"]),
+            bpftool_json(["feature"]),
+        ]
+        unexpected_helpers = DMESG_EMITTING_HELPERS
+        expected_keys = [
+            "syscall_config",
+            "system_config",
+            "program_types",
+            "map_types",
+            "helpers",
+            "misc",
+        ]
+
+        for tc in test_cases:
+            # Check if the result has all expected keys.
+            self.assertCountEqual(tc.keys(), expected_keys)
+            # Check if unexpected helpers are not included in helpers probes
+            # result.
+            for helpers in tc["helpers"].values():
+                for unexpected_helper in unexpected_helpers:
+                    self.assertNotIn(unexpected_helper, helpers)
+
+    def test_feature_kernel_full(self):
+        test_cases = [
+            bpftool_json(["feature", "probe", "kernel", "full"]),
+            bpftool_json(["feature", "probe", "full"]),
+        ]
+        expected_helpers = DMESG_EMITTING_HELPERS
+
+        for tc in test_cases:
+            # Check if expected helpers are included at least once in any
+            # helpers list for any program type. Unfortunately we cannot assume
+            # that they will be included in all program types or a specific
+            # subset of programs. It depends on the kernel version and
+            # configuration.
+            found_helpers = False
+
+            for helpers in tc["helpers"].values():
+                if all(expected_helper in helpers
+                       for expected_helper in expected_helpers):
+                    found_helpers = True
+                    break
+
+            self.assertTrue(found_helpers)
+
+    def test_feature_kernel_full_vs_not_full(self):
+        full_res = bpftool_json(["feature", "probe", "full"])
+        not_full_res = bpftool_json(["feature", "probe"])
+        not_full_set = set()
+        full_set = set()
+
+        for helpers in full_res["helpers"].values():
+            for helper in helpers:
+                full_set.add(helper)
+
+        for helpers in not_full_res["helpers"].values():
+            for helper in helpers:
+                not_full_set.add(helper)
+
+        self.assertCountEqual(full_set - not_full_set,
+                              set(DMESG_EMITTING_HELPERS))
+        self.assertCountEqual(not_full_set - full_set, set())
+
+    def test_feature_macros(self):
+        expected_patterns = [
+            r"/\*\*\* System call availability \*\*\*/",
+            r"#define HAVE_BPF_SYSCALL",
+            r"/\*\*\* eBPF program types \*\*\*/",
+            r"#define HAVE.*PROG_TYPE",
+            r"/\*\*\* eBPF map types \*\*\*/",
+            r"#define HAVE.*MAP_TYPE",
+            r"/\*\*\* eBPF helper functions \*\*\*/",
+            r"#define HAVE.*HELPER",
+            r"/\*\*\* eBPF misc features \*\*\*/",
+        ]
+
+        res = bpftool(["feature", "probe", "macros"])
+        for pattern in expected_patterns:
+            self.assertRegex(res, pattern)
diff --git a/tools/testing/selftests/bpf/test_bpftool.sh b/tools/testing/selftests/bpf/test_bpftool.sh
new file mode 100755
index 000000000000..718f59692ccb
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 SUSE LLC.
+
+# 'make -C tools/testing/selftests/bpf install' will install to SCRIPT_DIR
+SCRIPT_DIR=$(dirname $(realpath $0))
+
+# 'make -C tools/testing/selftests/bpf' will install to BPFTOOL_INSTALL_PATH
+BPFTOOL_INSTALL_PATH="$SCRIPT_DIR"/tools/sbin
+export PATH=$SCRIPT_DIR:$BPFTOOL_INSTALL_PATH:$PATH
+python3 -m unittest -v test_bpftool.TestBpftool
diff --git a/tools/testing/selftests/bpf/test_bpftool_build.sh b/tools/testing/selftests/bpf/test_bpftool_build.sh
new file mode 100755
index 000000000000..b03a87571592
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool_build.sh
@@ -0,0 +1,147 @@
+#!/bin/bash
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+
+case $1 in
+	-h|--help)
+		echo -e "$0 [-j <n>]"
+		echo -e "\tTest the different ways of building bpftool."
+		echo -e ""
+		echo -e "\tOptions:"
+		echo -e "\t\t-j <n>:\tPass -j flag to 'make'."
+		exit 0
+		;;
+esac
+
+J=$*
+
+# Assume script is located under tools/testing/selftests/bpf/. We want to start
+# build attempts from the top of kernel repository.
+SCRIPT_REL_PATH=$(realpath --relative-to=$PWD $0)
+SCRIPT_REL_DIR=$(dirname $SCRIPT_REL_PATH)
+KDIR_ROOT_DIR=$(realpath $PWD/$SCRIPT_REL_DIR/../../../../)
+cd $KDIR_ROOT_DIR
+if [ ! -e tools/bpf/bpftool/Makefile ]; then
+	echo -e "skip:    bpftool files not found!\n"
+	exit 4 # KSFT_SKIP=4
+fi
+
+ERROR=0
+TMPDIR=
+
+# If one build fails, continue but return non-0 on exit.
+return_value() {
+	if [ -d "$TMPDIR" ] ; then
+		rm -rf -- $TMPDIR
+	fi
+	exit $ERROR
+}
+trap return_value EXIT
+
+check() {
+	local dir=$(realpath $1)
+
+	echo -n "binary:  "
+	# Returns non-null if file is found (and "false" is run)
+	find $dir -type f -executable -name bpftool -print -exec false {} + && \
+		ERROR=1 && printf "FAILURE: Did not find bpftool\n"
+}
+
+make_and_clean() {
+	echo -e "\$PWD:    $PWD"
+	echo -e "command: make -s $* >/dev/null"
+	make $J -s $* >/dev/null
+	if [ $? -ne 0 ] ; then
+		ERROR=1
+	fi
+	if [ $# -ge 1 ] ; then
+		check ${@: -1}
+	else
+		check .
+	fi
+	(
+		if [ $# -ge 1 ] ; then
+			cd ${@: -1}
+		fi
+		make -s clean
+	)
+	echo
+}
+
+make_with_tmpdir() {
+	local ARGS
+
+	TMPDIR=$(mktemp -d)
+	if [ $# -ge 2 ] ; then
+		ARGS=${@:1:(($# - 1))}
+	fi
+	echo -e "\$PWD:    $PWD"
+	echo -e "command: make -s $ARGS ${@: -1}=$TMPDIR/ >/dev/null"
+	make $J -s $ARGS ${@: -1}=$TMPDIR/ >/dev/null
+	if [ $? -ne 0 ] ; then
+		ERROR=1
+	fi
+	check $TMPDIR
+	rm -rf -- $TMPDIR
+	echo
+}
+
+echo "Trying to build bpftool"
+echo -e "... through kbuild\n"
+
+if [ -f ".config" ] ; then
+	make_and_clean tools/bpf
+
+	## $OUTPUT is overwritten in kbuild Makefile, and thus cannot be passed
+	## down from toplevel Makefile to bpftool's Makefile.
+
+	# make_with_tmpdir tools/bpf OUTPUT
+	echo -e "skip:    make tools/bpf OUTPUT=<dir> (not supported)\n"
+
+	make_with_tmpdir tools/bpf O
+else
+	echo -e "skip:    make tools/bpf (no .config found)\n"
+	echo -e "skip:    make tools/bpf OUTPUT=<dir> (not supported)\n"
+	echo -e "skip:    make tools/bpf O=<dir> (no .config found)\n"
+fi
+
+echo -e "... from kernel source tree\n"
+
+make_and_clean -C tools/bpf/bpftool
+
+make_with_tmpdir -C tools/bpf/bpftool OUTPUT
+
+make_with_tmpdir -C tools/bpf/bpftool O
+
+echo -e "... from tools/\n"
+cd tools/
+
+make_and_clean bpf
+
+## In tools/bpf/Makefile, function "descend" is called and passes $(O) and
+## $(OUTPUT). We would like $(OUTPUT) to have "bpf/bpftool/" appended before
+## calling bpftool's Makefile, but this is not the case as the "descend"
+## function focuses on $(O)/$(subdir). However, in the present case, updating
+## $(O) to have $(OUTPUT) recomputed from it in bpftool's Makefile does not
+## work, because $(O) is not defined from command line and $(OUTPUT) is not
+## updated in tools/scripts/Makefile.include.
+##
+## Workarounds would require to a) edit "descend" or use an alternative way to
+## call bpftool's Makefile, b) modify the conditions to update $(OUTPUT) and
+## other variables in tools/scripts/Makefile.include (at the risk of breaking
+## the build of other tools), or c) append manually the "bpf/bpftool" suffix to
+## $(OUTPUT) in bpf's Makefile, which may break if targets for other directories
+## use "descend" in the future.
+
+# make_with_tmpdir bpf OUTPUT
+echo -e "skip:    make bpf OUTPUT=<dir> (not supported)\n"
+
+make_with_tmpdir bpf O
+
+echo -e "... from bpftool's dir\n"
+cd bpf/bpftool
+
+make_and_clean
+
+make_with_tmpdir OUTPUT
+
+make_with_tmpdir O
diff --git a/tools/testing/selftests/bpf/test_bpftool_map.sh b/tools/testing/selftests/bpf/test_bpftool_map.sh
new file mode 100755
index 000000000000..515b1df0501e
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool_map.sh
@@ -0,0 +1,398 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+TESTNAME="bpftool_map"
+BPF_FILE="security_bpf_map.bpf.o"
+BPF_ITER_FILE="bpf_iter_map_elem.bpf.o"
+PROTECTED_MAP_NAME="prot_map"
+NOT_PROTECTED_MAP_NAME="not_prot_map"
+BPF_FS_TMP_PARENT="/tmp"
+BPF_FS_PARENT=$(awk '$3 == "bpf" {print $2; exit}' /proc/mounts)
+BPF_FS_PARENT=${BPF_FS_PARENT:-$BPF_FS_TMP_PARENT}
+# bpftool will mount bpf file system under BPF_DIR if it is not mounted
+# under BPF_FS_PARENT.
+BPF_DIR="$BPF_FS_PARENT/test_$TESTNAME"
+SCRIPT_DIR=$(dirname $(realpath "$0"))
+BPF_FILE_PATH="$SCRIPT_DIR/$BPF_FILE"
+BPF_ITER_FILE_PATH="$SCRIPT_DIR/$BPF_ITER_FILE"
+BPFTOOL_PATH="bpftool"
+# Assume the script is located under tools/testing/selftests/bpf/
+KDIR_ROOT_DIR=$(realpath "$SCRIPT_DIR"/../../../../)
+
+_cleanup()
+{
+	set +eu
+
+	# If BPF_DIR is a mount point this will not remove the mount point itself.
+	[ -d "$BPF_DIR" ] && rm -rf "$BPF_DIR" 2> /dev/null
+
+	# Unmount if BPF filesystem was temporarily created.
+	if [ "$BPF_FS_PARENT" = "$BPF_FS_TMP_PARENT" ]; then
+		# A loop and recursive unmount are required as bpftool might
+		# create multiple mounts. For example, a bind mount of the directory
+		# to itself. The bind mount is created to change mount propagation
+		# flags on an actual mount point.
+		max_attempts=3
+		attempt=0
+		while mountpoint -q "$BPF_DIR" && [ $attempt -lt $max_attempts ]; do
+			umount -R "$BPF_DIR" 2>/dev/null
+			attempt=$((attempt+1))
+		done
+
+		# The directory still exists. Remove it now.
+		[ -d "$BPF_DIR" ] && rm -rf "$BPF_DIR" 2>/dev/null
+	fi
+}
+
+cleanup_skip()
+{
+	echo "selftests: $TESTNAME [SKIP]"
+	_cleanup
+
+	exit $ksft_skip
+}
+
+cleanup()
+{
+	if [ "$?" = 0 ]; then
+		echo "selftests: $TESTNAME [PASS]"
+	else
+		echo "selftests: $TESTNAME [FAILED]"
+	fi
+	_cleanup
+}
+
+check_root_privileges() {
+	if [ $(id -u) -ne 0 ]; then
+		echo "Need root privileges"
+		exit $ksft_skip
+	fi
+}
+
+# Function to verify bpftool path.
+# Parameters:
+#   $1: bpftool path
+verify_bpftool_path() {
+	local bpftool_path="$1"
+	if ! "$bpftool_path" version > /dev/null 2>&1; then
+		echo "Could not run test without bpftool"
+		exit $ksft_skip
+	fi
+}
+
+# Function to verify BTF support.
+# The test requires BTF support for fmod_ret programs.
+verify_btf_support() {
+	if [ ! -f /sys/kernel/btf/vmlinux ]; then
+		echo "Could not run test without BTF support"
+		exit $ksft_skip
+	fi
+}
+
+# Function to initialize map entries with keys [0..2] and values set to 0.
+# Parameters:
+#  $1: Map name
+#  $2: bpftool path
+initialize_map_entries() {
+	local map_name="$1"
+	local bpftool_path="$2"
+
+	for key in 0 1 2; do
+		"$bpftool_path" map update name "$map_name" key $key 0 0 0 value 0 0 0 $key
+	done
+}
+
+# Test read access to the map.
+# Parameters:
+#   $1: Name command (name/pinned)
+#   $2: Map name
+#   $3: bpftool path
+#   $4: key
+access_for_read() {
+	local name_cmd="$1"
+	local map_name="$2"
+	local bpftool_path="$3"
+	local key="$4"
+
+	# Test read access to the map.
+	if ! "$bpftool_path" map lookup "$name_cmd" "$map_name" key $key 1>/dev/null; then
+		echo " Read access to $key in $map_name failed"
+		exit 1
+	fi
+
+	# Test read access to map's BTF data.
+	if ! "$bpftool_path" btf dump map "$name_cmd" "$map_name" 1>/dev/null; then
+		echo " Read access to $map_name for BTF data failed"
+		exit 1
+	fi
+}
+
+# Test write access to the map.
+# Parameters:
+#   $1: Name command (name/pinned)
+#   $2: Map name
+#   $3: bpftool path
+#   $4: key
+#   $5: Whether write should succeed (true/false)
+access_for_write() {
+	local name_cmd="$1"
+	local map_name="$2"
+	local bpftool_path="$3"
+	local key="$4"
+	local write_should_succeed="$5"
+	local value="1 1 1 1"
+
+	if "$bpftool_path" map update "$name_cmd" "$map_name" key $key value \
+			$value 2>/dev/null; then
+		if [ "$write_should_succeed" = "false" ]; then
+			echo " Write access to $key in $map_name succeeded but should have failed"
+			exit 1
+		fi
+	else
+		if [ "$write_should_succeed" = "true" ]; then
+			echo " Write access to $key in $map_name failed but should have succeeded"
+			exit 1
+		fi
+	fi
+}
+
+# Test entry deletion for the map.
+# Parameters:
+#   $1: Name command (name/pinned)
+#   $2: Map name
+#   $3: bpftool path
+#   $4: key
+#   $5: Whether write should succeed (true/false)
+access_for_deletion() {
+	local name_cmd="$1"
+	local map_name="$2"
+	local bpftool_path="$3"
+	local key="$4"
+	local write_should_succeed="$5"
+	local value="1 1 1 1"
+
+	# Test deletion by key for the map.
+	# Before deleting, check the key exists.
+	if ! "$bpftool_path" map lookup "$name_cmd" "$map_name" key $key 1>/dev/null; then
+		echo " Key $key does not exist in $map_name"
+		exit 1
+	fi
+
+	# Delete by key.
+	if "$bpftool_path" map delete "$name_cmd" "$map_name" key $key 2>/dev/null; then
+		if [ "$write_should_succeed" = "false" ]; then
+			echo " Deletion for $key in $map_name succeeded but should have failed"
+			exit 1
+		fi
+	else
+		if [ "$write_should_succeed" = "true" ]; then
+			echo " Deletion for $key in $map_name failed but should have succeeded"
+			exit 1
+		fi
+	fi
+
+	# After deleting, check the entry existence according to the expected status.
+	if "$bpftool_path" map lookup "$name_cmd" "$map_name" key $key 1>/dev/null; then
+		if [ "$write_should_succeed" = "true" ]; then
+			echo " Key $key for $map_name was not deleted but should have been deleted"
+			exit 1
+		fi
+	else
+		if [ "$write_should_succeed" = "false" ]; then
+			echo "Key $key for $map_name was deleted but should have not been deleted"
+			exit 1
+		fi
+	fi
+
+	# Test creation of map's deleted entry, if deletion was successful.
+	# Otherwise, the entry exists.
+	if "$bpftool_path" map update "$name_cmd" "$map_name" key $key value \
+				$value 2>/dev/null; then
+		if [ "$write_should_succeed" = "false" ]; then
+			echo " Write access to $key in $map_name succeeded after deletion attempt but should have failed"
+			exit 1
+		fi
+	else
+		if [ "$write_should_succeed" = "true" ]; then
+			echo " Write access to $key in $map_name failed after deletion attempt but should have succeeded"
+			exit 1
+		fi
+	fi
+}
+
+# Test map elements iterator.
+# Parameters:
+#   $1: Name command (name/pinned)
+#   $2: Map name
+#   $3: bpftool path
+#   $4: BPF_DIR
+#   $5: bpf iterator object file path
+iterate_map_elem() {
+	local name_cmd="$1"
+	local map_name="$2"
+	local bpftool_path="$3"
+	local bpf_dir="$4"
+	local bpf_file="$5"
+	local pin_path="$bpf_dir/map_iterator"
+
+	"$bpftool_path" iter pin "$bpf_file" "$pin_path" map "$name_cmd" "$map_name"
+	if [ ! -f "$pin_path" ]; then
+		echo " Failed to pin iterator to $pin_path"
+		exit 1
+	fi
+
+	cat "$pin_path" 1>/dev/null
+	rm "$pin_path" 2>/dev/null
+}
+
+# Function to test map access with configurable write expectations
+# Parameters:
+#   $1: Name command (name/pinned)
+#   $2: Map name
+#   $3: bpftool path
+#   $4: key for rw
+#   $5: key to delete
+#   $6: Whether write should succeed (true/false)
+#   $7: BPF_DIR
+#   $8: bpf iterator object file path
+access_map() {
+	local name_cmd="$1"
+	local map_name="$2"
+	local bpftool_path="$3"
+	local key_for_rw="$4"
+	local key_to_del="$5"
+	local write_should_succeed="$6"
+	local bpf_dir="$7"
+	local bpf_iter_file_path="$8"
+
+	access_for_read "$name_cmd" "$map_name" "$bpftool_path" "$key_for_rw"
+	access_for_write "$name_cmd" "$map_name" "$bpftool_path" "$key_for_rw" \
+		"$write_should_succeed"
+	access_for_deletion "$name_cmd" "$map_name" "$bpftool_path" "$key_to_del" \
+		"$write_should_succeed"
+	iterate_map_elem "$name_cmd" "$map_name" "$bpftool_path" "$bpf_dir" \
+		"$bpf_iter_file_path"
+}
+
+# Function to test map access with configurable write expectations
+# Parameters:
+#   $1: Map name
+#   $2: bpftool path
+#   $3: BPF_DIR
+#   $4: Whether write should succeed (true/false)
+#   $5: bpf iterator object file path
+test_map_access() {
+	local map_name="$1"
+	local bpftool_path="$2"
+	local bpf_dir="$3"
+	local pin_path="$bpf_dir/${map_name}_pinned"
+	local write_should_succeed="$4"
+	local bpf_iter_file_path="$5"
+
+	# Test access to the map by name.
+	access_map "name" "$map_name" "$bpftool_path" "0 0 0 0" "1 0 0 0" \
+		"$write_should_succeed" "$bpf_dir" "$bpf_iter_file_path"
+
+	# Pin the map to the BPF filesystem
+	"$bpftool_path" map pin name "$map_name" "$pin_path"
+	if [ ! -e "$pin_path" ]; then
+		echo " Failed to pin $map_name"
+		exit 1
+	fi
+
+	# Test access to the pinned map.
+	access_map "pinned" "$pin_path" "$bpftool_path" "0 0 0 0" "2 0 0 0" \
+		"$write_should_succeed" "$bpf_dir" "$bpf_iter_file_path"
+}
+
+# Function to test map creation and map-of-maps
+# Parameters:
+#   $1: bpftool path
+#   $2: BPF_DIR
+test_map_creation_and_map_of_maps() {
+	local bpftool_path="$1"
+	local bpf_dir="$2"
+	local outer_map_name="outer_map_tt"
+	local inner_map_name="inner_map_tt"
+
+	"$bpftool_path" map create "$bpf_dir/$inner_map_name" type array key 4 \
+		value 4 entries 4 name "$inner_map_name"
+	if [ ! -f "$bpf_dir/$inner_map_name" ]; then
+		echo " Failed to create inner map file at $bpf_dir/$outer_map_name"
+		return 1
+	fi
+
+	"$bpftool_path" map create "$bpf_dir/$outer_map_name" type hash_of_maps \
+		key 4 value 4 entries 2 name "$outer_map_name" inner_map name "$inner_map_name"
+	if [ ! -f "$bpf_dir/$outer_map_name" ]; then
+		echo " Failed to create outer map file at $bpf_dir/$outer_map_name"
+		return 1
+	fi
+
+	# Add entries to the outer map by name and by pinned path.
+	"$bpftool_path" map update pinned "$bpf_dir/$outer_map_name" key 0 0 0 0 \
+		value pinned "$bpf_dir/$inner_map_name"
+	"$bpftool_path" map update name "$outer_map_name" key 1 0 0 0 value \
+		name "$inner_map_name"
+
+	# The outer map should be full by now.
+	# The following map update command is expected to fail.
+	if "$bpftool_path" map update name "$outer_map_name" key 2 0 0 0 value name \
+		"$inner_map_name" 2>/dev/null; then
+		echo " Update for $outer_map_name succeeded but should have failed"
+		exit 1
+	fi
+}
+
+# Function to test map access with the btf list command
+# Parameters:
+#   $1: bpftool path
+test_map_access_with_btf_list() {
+	local bpftool_path="$1"
+
+	# The btf list command iterates over maps for
+	# loaded BPF programs.
+	if ! "$bpftool_path" btf list 1>/dev/null; then
+		echo " Failed to access btf data"
+		exit 1
+	fi
+}
+
+set -eu
+
+trap cleanup_skip EXIT
+
+check_root_privileges
+
+verify_bpftool_path "$BPFTOOL_PATH"
+
+verify_btf_support
+
+trap cleanup EXIT
+
+# Load and attach the BPF programs to control maps access.
+"$BPFTOOL_PATH" prog loadall "$BPF_FILE_PATH" "$BPF_DIR" autoattach
+
+initialize_map_entries "$PROTECTED_MAP_NAME" "$BPFTOOL_PATH"
+initialize_map_entries "$NOT_PROTECTED_MAP_NAME" "$BPFTOOL_PATH"
+
+# Activate the map protection mechanism. Protection status is controlled
+# by a value stored in the prot_status_map at index 0.
+"$BPFTOOL_PATH" map update name prot_status_map key 0 0 0 0 value 1 0 0 0
+
+# Test protected map (write should fail).
+test_map_access "$PROTECTED_MAP_NAME" "$BPFTOOL_PATH" "$BPF_DIR" "false" \
+ "$BPF_ITER_FILE_PATH"
+
+# Test not protected map (write should succeed).
+test_map_access "$NOT_PROTECTED_MAP_NAME" "$BPFTOOL_PATH" "$BPF_DIR" "true" \
+ "$BPF_ITER_FILE_PATH"
+
+test_map_creation_and_map_of_maps "$BPFTOOL_PATH" "$BPF_DIR"
+
+test_map_access_with_btf_list "$BPFTOOL_PATH"
+
+exit 0
diff --git a/tools/testing/selftests/bpf/test_bpftool_metadata.sh b/tools/testing/selftests/bpf/test_bpftool_metadata.sh
new file mode 100755
index 000000000000..b5520692f41b
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool_metadata.sh
@@ -0,0 +1,85 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+BPF_FILE_USED="metadata_used.bpf.o"
+BPF_FILE_UNUSED="metadata_unused.bpf.o"
+
+TESTNAME=bpftool_metadata
+BPF_FS=$(awk '$3 == "bpf" {print $2; exit}' /proc/mounts)
+BPF_DIR=$BPF_FS/test_$TESTNAME
+
+_cleanup()
+{
+	set +e
+	rm -rf $BPF_DIR 2> /dev/null
+}
+
+cleanup_skip()
+{
+	echo "selftests: $TESTNAME [SKIP]"
+	_cleanup
+
+	exit $ksft_skip
+}
+
+cleanup()
+{
+	if [ "$?" = 0 ]; then
+		echo "selftests: $TESTNAME [PASS]"
+	else
+		echo "selftests: $TESTNAME [FAILED]"
+	fi
+	_cleanup
+}
+
+if [ $(id -u) -ne 0 ]; then
+	echo "selftests: $TESTNAME [SKIP] Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ -z "$BPF_FS" ]; then
+	echo "selftests: $TESTNAME [SKIP] Could not run test without bpffs mounted"
+	exit $ksft_skip
+fi
+
+if ! bpftool version > /dev/null 2>&1; then
+	echo "selftests: $TESTNAME [SKIP] Could not run test without bpftool"
+	exit $ksft_skip
+fi
+
+set -e
+
+trap cleanup_skip EXIT
+
+mkdir $BPF_DIR
+
+trap cleanup EXIT
+
+bpftool prog load $BPF_FILE_UNUSED $BPF_DIR/unused
+
+METADATA_PLAIN="$(bpftool prog)"
+echo "$METADATA_PLAIN" | grep 'a = "foo"' > /dev/null
+echo "$METADATA_PLAIN" | grep 'b = 1' > /dev/null
+
+bpftool prog --json | grep '"metadata":{"a":"foo","b":1}' > /dev/null
+
+bpftool map | grep 'metadata.rodata' > /dev/null
+
+rm $BPF_DIR/unused
+
+bpftool prog load $BPF_FILE_USED $BPF_DIR/used
+
+METADATA_PLAIN="$(bpftool prog)"
+echo "$METADATA_PLAIN" | grep 'a = "bar"' > /dev/null
+echo "$METADATA_PLAIN" | grep 'b = 2' > /dev/null
+
+bpftool prog --json | grep '"metadata":{"a":"bar","b":2}' > /dev/null
+
+bpftool map | grep 'metadata.rodata' > /dev/null
+
+rm $BPF_DIR/used
+
+exit 0
diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
new file mode 100755
index 000000000000..238121fda5b6
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -0,0 +1,627 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+#
+# Copyright (C) 2021 Isovalent, Inc.
+
+import argparse
+import re
+import os, sys
+
+LINUX_ROOT = os.path.abspath(os.path.join(__file__,
+    os.pardir, os.pardir, os.pardir, os.pardir, os.pardir))
+BPFTOOL_DIR = os.getenv('BPFTOOL_DIR',
+    os.path.join(LINUX_ROOT, 'tools/bpf/bpftool'))
+BPFTOOL_BASHCOMP_DIR = os.getenv('BPFTOOL_BASHCOMP_DIR',
+    os.path.join(BPFTOOL_DIR, 'bash-completion'))
+BPFTOOL_DOC_DIR = os.getenv('BPFTOOL_DOC_DIR',
+    os.path.join(BPFTOOL_DIR, 'Documentation'))
+INCLUDE_DIR = os.getenv('INCLUDE_DIR',
+    os.path.join(LINUX_ROOT, 'tools/include'))
+
+retval = 0
+
+class BlockParser(object):
+    """
+    A parser for extracting set of values from blocks such as enums.
+    @reader: a pointer to the open file to parse
+    """
+    def __init__(self, reader):
+        self.reader = reader
+
+    def search_block(self, start_marker):
+        """
+        Search for a given structure in a file.
+        @start_marker: regex marking the beginning of a structure to parse
+        """
+        offset = self.reader.tell()
+        array_start = re.search(start_marker, self.reader.read())
+        if array_start is None:
+            raise Exception('Failed to find start of block')
+        self.reader.seek(offset + array_start.start())
+
+    def parse(self, pattern, end_marker):
+        """
+        Parse a block and return a set of values. Values to extract must be
+        on separate lines in the file.
+        @pattern: pattern used to identify the values to extract
+        @end_marker: regex marking the end of the block to parse
+        """
+        entries = set()
+        while True:
+            line = self.reader.readline()
+            if not line or re.match(end_marker, line):
+                break
+            capture = pattern.search(line)
+            if capture and pattern.groups >= 1:
+                entries.add(capture.group(1))
+        return entries
+
+class ArrayParser(BlockParser):
+    """
+    A parser for extracting a set of values from some BPF-related arrays.
+    @reader: a pointer to the open file to parse
+    @array_name: name of the array to parse
+    """
+    end_marker = re.compile('^};')
+
+    def __init__(self, reader, array_name):
+        self.array_name = array_name
+        self.start_marker = re.compile(fr'(static )?const bool {self.array_name}\[.*\] = {{\n')
+        super().__init__(reader)
+
+    def search_block(self):
+        """
+        Search for the given array in a file.
+        """
+        super().search_block(self.start_marker);
+
+    def parse(self):
+        """
+        Parse a block and return data as a dictionary. Items to extract must be
+        on separate lines in the file.
+        """
+        pattern = re.compile(r'\[(BPF_\w*)\]\s*= (true|false),?$')
+        entries = set()
+        while True:
+            line = self.reader.readline()
+            if line == '' or re.match(self.end_marker, line):
+                break
+            capture = pattern.search(line)
+            if capture:
+                entries |= {capture.group(1)}
+        return entries
+
+class InlineListParser(BlockParser):
+    """
+    A parser for extracting set of values from inline lists.
+    """
+    def parse(self, pattern, end_marker):
+        """
+        Parse a block and return a set of values. Multiple values to extract
+        can be on a same line in the file.
+        @pattern: pattern used to identify the values to extract
+        @end_marker: regex marking the end of the block to parse
+        """
+        entries = set()
+        while True:
+            line = self.reader.readline()
+            if not line:
+                break
+            entries.update(pattern.findall(line))
+            if re.search(end_marker, line):
+                break
+        return entries
+
+class FileExtractor(object):
+    """
+    A generic reader for extracting data from a given file. This class contains
+    several helper methods that wrap around parser objects to extract values
+    from different structures.
+    This class does not offer a way to set a filename, which is expected to be
+    defined in children classes.
+    """
+    def __init__(self):
+        self.reader = open(self.filename, 'r')
+
+    def close(self):
+        """
+        Close the file used by the parser.
+        """
+        self.reader.close()
+
+    def reset_read(self):
+        """
+        Reset the file position indicator for this parser. This is useful when
+        parsing several structures in the file without respecting the order in
+        which those structures appear in the file.
+        """
+        self.reader.seek(0)
+
+    def get_types_from_array(self, array_name):
+        """
+        Search for and parse a list of allowed BPF_* enum members, for example:
+
+            const bool prog_type_name[] = {
+                    [BPF_PROG_TYPE_UNSPEC]                  = true,
+                    [BPF_PROG_TYPE_SOCKET_FILTER]           = true,
+                    [BPF_PROG_TYPE_KPROBE]                  = true,
+            };
+
+        Return a set of the enum members, for example:
+
+            {'BPF_PROG_TYPE_UNSPEC',
+             'BPF_PROG_TYPE_SOCKET_FILTER',
+             'BPF_PROG_TYPE_KPROBE'}
+
+        @array_name: name of the array to parse
+        """
+        array_parser = ArrayParser(self.reader, array_name)
+        array_parser.search_block()
+        return array_parser.parse()
+
+    def get_enum(self, enum_name):
+        """
+        Search for and parse an enum containing BPF_* members, for example:
+
+            enum bpf_prog_type {
+                    BPF_PROG_TYPE_UNSPEC,
+                    BPF_PROG_TYPE_SOCKET_FILTER,
+                    BPF_PROG_TYPE_KPROBE,
+            };
+
+        Return a set containing all member names, for example:
+
+            {'BPF_PROG_TYPE_UNSPEC',
+             'BPF_PROG_TYPE_SOCKET_FILTER',
+             'BPF_PROG_TYPE_KPROBE'}
+
+        @enum_name: name of the enum to parse
+        """
+        start_marker = re.compile(f'enum {enum_name} {{\n')
+        pattern = re.compile(r'^\s*(BPF_\w+),?(\s+/\*.*\*/)?$')
+        end_marker = re.compile('^};')
+        parser = BlockParser(self.reader)
+        parser.search_block(start_marker)
+        return parser.parse(pattern, end_marker)
+
+    def make_enum_map(self, names, enum_prefix):
+        """
+        Search for and parse an enum containing BPF_* members, just as get_enum
+        does. However, instead of just returning a set of the variant names,
+        also generate a textual representation from them by (assuming and)
+        removing a provided prefix and lowercasing the remainder. Then return a
+        dict mapping from name to textual representation.
+
+        @enum_values: a set of enum values; e.g., as retrieved by get_enum
+        @enum_prefix: the prefix to remove from each of the variants to infer
+        textual representation
+        """
+        mapping = {}
+        for name in names:
+            if not name.startswith(enum_prefix):
+                raise Exception(f"enum variant {name} does not start with {enum_prefix}")
+            text = name[len(enum_prefix):].lower()
+            mapping[name] = text
+
+        return mapping
+
+    def __get_description_list(self, start_marker, pattern, end_marker):
+        parser = InlineListParser(self.reader)
+        parser.search_block(start_marker)
+        return parser.parse(pattern, end_marker)
+
+    def get_rst_list(self, block_name):
+        """
+        Search for and parse a list of type names from RST documentation, for
+        example:
+
+             |       *TYPE* := {
+             |               **socket** | **kprobe** |
+             |               **kretprobe**
+             |       }
+
+        Return a set containing all type names, for example:
+
+            {'socket', 'kprobe', 'kretprobe'}
+
+        @block_name: name of the blog to parse, 'TYPE' in the example
+        """
+        start_marker = re.compile(fr'\*{block_name}\* := {{')
+        pattern = re.compile(r'\*\*([\w/-]+)\*\*')
+        end_marker = re.compile('}\n')
+        return self.__get_description_list(start_marker, pattern, end_marker)
+
+    def get_help_list(self, block_name):
+        """
+        Search for and parse a list of type names from a help message in
+        bpftool, for example:
+
+            "       TYPE := { socket | kprobe |\\n"
+            "               kretprobe }\\n"
+
+        Return a set containing all type names, for example:
+
+            {'socket', 'kprobe', 'kretprobe'}
+
+        @block_name: name of the blog to parse, 'TYPE' in the example
+        """
+        start_marker = re.compile(fr'"\s*{block_name} := {{')
+        pattern = re.compile(r'([\w/]+) [|}]')
+        end_marker = re.compile('}')
+        return self.__get_description_list(start_marker, pattern, end_marker)
+
+    def get_help_list_macro(self, macro):
+        """
+        Search for and parse a list of values from a help message starting with
+        a macro in bpftool, for example:
+
+            "       " HELP_SPEC_OPTIONS " |\\n"
+            "                    {-f|--bpffs} | {-m|--mapcompat} | {-n|--nomount} }\\n"
+
+        Return a set containing all item names, for example:
+
+            {'-f', '--bpffs', '-m', '--mapcompat', '-n', '--nomount'}
+
+        @macro: macro starting the block, 'HELP_SPEC_OPTIONS' in the example
+        """
+        start_marker = re.compile(fr'"\s*{macro}\s*" [|}}]')
+        pattern = re.compile(r'([\w-]+) ?(?:\||}[ }\]])')
+        end_marker = re.compile('}\\\\n')
+        return self.__get_description_list(start_marker, pattern, end_marker)
+
+    def get_bashcomp_list(self, block_name):
+        """
+        Search for and parse a list of type names from a variable in bash
+        completion file, for example:
+
+            local BPFTOOL_PROG_LOAD_TYPES='socket kprobe \\
+                kretprobe'
+
+        Return a set containing all type names, for example:
+
+            {'socket', 'kprobe', 'kretprobe'}
+
+        @block_name: name of the blog to parse, 'TYPE' in the example
+        """
+        start_marker = re.compile(fr'local {block_name}=\'')
+        pattern = re.compile(r'(?:.*=\')?([\w/]+)')
+        end_marker = re.compile('\'$')
+        return self.__get_description_list(start_marker, pattern, end_marker)
+
+class SourceFileExtractor(FileExtractor):
+    """
+    An abstract extractor for a source file with usage message.
+    This class does not offer a way to set a filename, which is expected to be
+    defined in children classes.
+    """
+    def get_options(self):
+        return self.get_help_list_macro('HELP_SPEC_OPTIONS')
+
+class MainHeaderFileExtractor(SourceFileExtractor):
+    """
+    An extractor for bpftool's main.h
+    """
+    filename = os.path.join(BPFTOOL_DIR, 'main.h')
+
+    def get_common_options(self):
+        """
+        Parse the list of common options in main.h (options that apply to all
+        commands), which looks to the lists of options in other source files
+        but has different start and end markers:
+
+            "OPTIONS := { {-j|--json} [{-p|--pretty}] | {-d|--debug}"
+
+        Return a set containing all options, such as:
+
+            {'-p', '-d', '--pretty', '--debug', '--json', '-j'}
+        """
+        start_marker = re.compile(f'"OPTIONS :=')
+        pattern = re.compile(r'([\w-]+) ?(?:\||}[ }\]"])')
+        end_marker = re.compile('#define')
+
+        parser = InlineListParser(self.reader)
+        parser.search_block(start_marker)
+        return parser.parse(pattern, end_marker)
+
+class ManSubstitutionsExtractor(SourceFileExtractor):
+    """
+    An extractor for substitutions.rst
+    """
+    filename = os.path.join(BPFTOOL_DOC_DIR, 'substitutions.rst')
+
+    def get_common_options(self):
+        """
+        Parse the list of common options in substitutions.rst (options that
+        apply to all commands).
+
+        Return a set containing all options, such as:
+
+            {'-p', '-d', '--pretty', '--debug', '--json', '-j'}
+        """
+        start_marker = re.compile(r'\|COMMON_OPTIONS\| replace:: {')
+        pattern = re.compile(r'\*\*([\w/-]+)\*\*')
+        end_marker = re.compile('}$')
+
+        parser = InlineListParser(self.reader)
+        parser.search_block(start_marker)
+        return parser.parse(pattern, end_marker)
+
+class ProgFileExtractor(SourceFileExtractor):
+    """
+    An extractor for bpftool's prog.c.
+    """
+    filename = os.path.join(BPFTOOL_DIR, 'prog.c')
+
+    def get_attach_types(self):
+        types = self.get_types_from_array('attach_types')
+        return self.make_enum_map(types, 'BPF_')
+
+    def get_prog_attach_help(self):
+        return self.get_help_list('ATTACH_TYPE')
+
+class MapFileExtractor(SourceFileExtractor):
+    """
+    An extractor for bpftool's map.c.
+    """
+    filename = os.path.join(BPFTOOL_DIR, 'map.c')
+
+    def get_map_help(self):
+        return self.get_help_list('TYPE')
+
+class CgroupFileExtractor(SourceFileExtractor):
+    """
+    An extractor for bpftool's cgroup.c.
+    """
+    filename = os.path.join(BPFTOOL_DIR, 'cgroup.c')
+
+    def get_prog_attach_help(self):
+        return self.get_help_list('ATTACH_TYPE')
+
+class GenericSourceExtractor(SourceFileExtractor):
+    """
+    An extractor for generic source code files.
+    """
+    filename = ""
+
+    def __init__(self, filename):
+        self.filename = os.path.join(BPFTOOL_DIR, filename)
+        super().__init__()
+
+class BpfHeaderExtractor(FileExtractor):
+    """
+    An extractor for the UAPI BPF header.
+    """
+    filename = os.path.join(INCLUDE_DIR, 'uapi/linux/bpf.h')
+
+    def __init__(self):
+        super().__init__()
+        self.attach_types = {}
+
+    def get_prog_types(self):
+        return self.get_enum('bpf_prog_type')
+
+    def get_map_type_map(self):
+        names = self.get_enum('bpf_map_type')
+        return self.make_enum_map(names, 'BPF_MAP_TYPE_')
+
+    def get_attach_type_map(self):
+        if not self.attach_types:
+          names = self.get_enum('bpf_attach_type')
+          self.attach_types = self.make_enum_map(names, 'BPF_')
+        return self.attach_types
+
+    def get_cgroup_attach_type_map(self):
+        if not self.attach_types:
+            self.get_attach_type_map()
+        return {name: text for name, text in self.attach_types.items()
+            if name.startswith('BPF_CGROUP')}
+
+class ManPageExtractor(FileExtractor):
+    """
+    An abstract extractor for an RST documentation page.
+    This class does not offer a way to set a filename, which is expected to be
+    defined in children classes.
+    """
+    def get_options(self):
+        return self.get_rst_list('OPTIONS')
+
+class ManProgExtractor(ManPageExtractor):
+    """
+    An extractor for bpftool-prog.rst.
+    """
+    filename = os.path.join(BPFTOOL_DOC_DIR, 'bpftool-prog.rst')
+
+    def get_attach_types(self):
+        return self.get_rst_list('ATTACH_TYPE')
+
+class ManMapExtractor(ManPageExtractor):
+    """
+    An extractor for bpftool-map.rst.
+    """
+    filename = os.path.join(BPFTOOL_DOC_DIR, 'bpftool-map.rst')
+
+    def get_map_types(self):
+        return self.get_rst_list('TYPE')
+
+class ManCgroupExtractor(ManPageExtractor):
+    """
+    An extractor for bpftool-cgroup.rst.
+    """
+    filename = os.path.join(BPFTOOL_DOC_DIR, 'bpftool-cgroup.rst')
+
+    def get_attach_types(self):
+        return self.get_rst_list('ATTACH_TYPE')
+
+class ManGenericExtractor(ManPageExtractor):
+    """
+    An extractor for generic RST documentation pages.
+    """
+    filename = ""
+
+    def __init__(self, filename):
+        self.filename = os.path.join(BPFTOOL_DIR, filename)
+        super().__init__()
+
+class BashcompExtractor(FileExtractor):
+    """
+    An extractor for bpftool's bash completion file.
+    """
+    filename = os.path.join(BPFTOOL_BASHCOMP_DIR, 'bpftool')
+
+    def get_prog_attach_types(self):
+        return self.get_bashcomp_list('BPFTOOL_PROG_ATTACH_TYPES')
+
+def verify(first_set, second_set, message):
+    """
+    Print all values that differ between two sets.
+    @first_set: one set to compare
+    @second_set: another set to compare
+    @message: message to print for values belonging to only one of the sets
+    """
+    global retval
+    diff = first_set.symmetric_difference(second_set)
+    if diff:
+        print(message, diff)
+        retval = 1
+
+def main():
+    # No arguments supported at this time, but print usage for -h|--help
+    argParser = argparse.ArgumentParser(description="""
+    Verify that bpftool's code, help messages, documentation and bash
+    completion are all in sync on program types, map types, attach types, and
+    options. Also check that bpftool is in sync with the UAPI BPF header.
+    """)
+    args = argParser.parse_args()
+
+    bpf_info = BpfHeaderExtractor()
+
+    # Map types (names)
+
+    map_info = MapFileExtractor()
+    source_map_types = set(bpf_info.get_map_type_map().values())
+    source_map_types.discard('unspec')
+
+    # BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED and BPF_MAP_TYPE_CGROUP_STORAGE
+    # share the same enum value and source_map_types picks
+    # BPF_MAP_TYPE_CGROUP_STORAGE_DEPRECATED/cgroup_storage_deprecated.
+    # Replace 'cgroup_storage_deprecated' with 'cgroup_storage'
+    # so it aligns with what `bpftool map help` shows.
+    source_map_types.remove('cgroup_storage_deprecated')
+    source_map_types.add('cgroup_storage')
+
+    # The same applied to BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED and
+    # BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE which share the same enum value
+    # and source_map_types picks
+    # BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE_DEPRECATED/percpu_cgroup_storage_deprecated.
+    # Replace 'percpu_cgroup_storage_deprecated' with 'percpu_cgroup_storage'
+    # so it aligns with what `bpftool map help` shows.
+    source_map_types.remove('percpu_cgroup_storage_deprecated')
+    source_map_types.add('percpu_cgroup_storage')
+
+    help_map_types = map_info.get_map_help()
+    help_map_options = map_info.get_options()
+    map_info.close()
+
+    man_map_info = ManMapExtractor()
+    man_map_options = man_map_info.get_options()
+    man_map_types = man_map_info.get_map_types()
+    man_map_info.close()
+
+    verify(source_map_types, help_map_types,
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_map_type) and {MapFileExtractor.filename} (do_help() TYPE):')
+    verify(source_map_types, man_map_types,
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_map_type) and {ManMapExtractor.filename} (TYPE):')
+    verify(help_map_options, man_map_options,
+            f'Comparing {MapFileExtractor.filename} (do_help() OPTIONS) and {ManMapExtractor.filename} (OPTIONS):')
+
+    # Attach types (names)
+
+    prog_info = ProgFileExtractor()
+    source_prog_attach_types = set(prog_info.get_attach_types().values())
+
+    help_prog_attach_types = prog_info.get_prog_attach_help()
+    help_prog_options = prog_info.get_options()
+    prog_info.close()
+
+    man_prog_info = ManProgExtractor()
+    man_prog_options = man_prog_info.get_options()
+    man_prog_attach_types = man_prog_info.get_attach_types()
+    man_prog_info.close()
+
+
+    bashcomp_info = BashcompExtractor()
+    bashcomp_prog_attach_types = bashcomp_info.get_prog_attach_types()
+    bashcomp_info.close()
+
+    verify(source_prog_attach_types, help_prog_attach_types,
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {ProgFileExtractor.filename} (do_help() ATTACH_TYPE):')
+    verify(source_prog_attach_types, man_prog_attach_types,
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {ManProgExtractor.filename} (ATTACH_TYPE):')
+    verify(help_prog_options, man_prog_options,
+            f'Comparing {ProgFileExtractor.filename} (do_help() OPTIONS) and {ManProgExtractor.filename} (OPTIONS):')
+    verify(source_prog_attach_types, bashcomp_prog_attach_types,
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {BashcompExtractor.filename} (BPFTOOL_PROG_ATTACH_TYPES):')
+
+    # Cgroup attach types
+    source_cgroup_attach_types = set(bpf_info.get_cgroup_attach_type_map().values())
+    bpf_info.close()
+
+    cgroup_info = CgroupFileExtractor()
+    help_cgroup_attach_types = cgroup_info.get_prog_attach_help()
+    help_cgroup_options = cgroup_info.get_options()
+    cgroup_info.close()
+
+    man_cgroup_info = ManCgroupExtractor()
+    man_cgroup_options = man_cgroup_info.get_options()
+    man_cgroup_attach_types = man_cgroup_info.get_attach_types()
+    man_cgroup_info.close()
+
+    verify(source_cgroup_attach_types, help_cgroup_attach_types,
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_attach_type) and {CgroupFileExtractor.filename} (do_help() ATTACH_TYPE):')
+    verify(source_cgroup_attach_types, man_cgroup_attach_types,
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_attach_type) and {ManCgroupExtractor.filename} (ATTACH_TYPE):')
+    verify(help_cgroup_options, man_cgroup_options,
+            f'Comparing {CgroupFileExtractor.filename} (do_help() OPTIONS) and {ManCgroupExtractor.filename} (OPTIONS):')
+
+    # Options for remaining commands
+
+    for cmd in [ 'btf', 'feature', 'gen', 'iter', 'link', 'net', 'perf', 'struct_ops', ]:
+        source_info = GenericSourceExtractor(cmd + '.c')
+        help_cmd_options = source_info.get_options()
+        source_info.close()
+
+        man_cmd_info = ManGenericExtractor(os.path.join(BPFTOOL_DOC_DIR, 'bpftool-' + cmd + '.rst'))
+        man_cmd_options = man_cmd_info.get_options()
+        man_cmd_info.close()
+
+        verify(help_cmd_options, man_cmd_options,
+                f'Comparing {source_info.filename} (do_help() OPTIONS) and {man_cmd_info.filename} (OPTIONS):')
+
+    source_main_info = GenericSourceExtractor('main.c')
+    help_main_options = source_main_info.get_options()
+    source_main_info.close()
+
+    man_main_info = ManGenericExtractor(os.path.join(BPFTOOL_DOC_DIR, 'bpftool.rst'))
+    man_main_options = man_main_info.get_options()
+    man_main_info.close()
+
+    verify(help_main_options, man_main_options,
+            f'Comparing {source_main_info.filename} (do_help() OPTIONS) and {man_main_info.filename} (OPTIONS):')
+
+    # Compare common options (options that apply to all commands)
+
+    main_hdr_info = MainHeaderFileExtractor()
+    source_common_options = main_hdr_info.get_common_options()
+    main_hdr_info.close()
+
+    man_substitutions = ManSubstitutionsExtractor()
+    man_common_options = man_substitutions.get_common_options()
+    man_substitutions.close()
+
+    verify(source_common_options, man_common_options,
+            f'Comparing common options from {main_hdr_info.filename} (HELP_SPEC_OPTIONS) and {man_substitutions.filename}:')
+
+    sys.exit(retval)
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/bpf/test_btf.h b/tools/testing/selftests/bpf/test_btf.h
new file mode 100644
index 000000000000..e65889ab4adf
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_btf.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019 Facebook */
+
+#ifndef _TEST_BTF_H
+#define _TEST_BTF_H
+
+#define BTF_END_RAW 0xdeadbeef
+
+#define BTF_INFO_ENC(kind, kind_flag, vlen)			\
+	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
+
+#define BTF_TYPE_ENC(name, info, size_or_type)	\
+	(name), (info), (size_or_type)
+
+#define BTF_INT_ENC(encoding, bits_offset, nr_bits)	\
+	((encoding) << 24 | (bits_offset) << 16 | (nr_bits))
+#define BTF_TYPE_INT_ENC(name, encoding, bits_offset, bits, sz)	\
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_INT, 0, 0), sz),	\
+	BTF_INT_ENC(encoding, bits_offset, bits)
+
+#define BTF_FWD_ENC(name, kind_flag) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FWD, kind_flag, 0), 0)
+
+#define BTF_ARRAY_ENC(type, index_type, nr_elems)	\
+	(type), (index_type), (nr_elems)
+#define BTF_TYPE_ARRAY_ENC(type, index_type, nr_elems) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ARRAY, 0, 0), 0), \
+	BTF_ARRAY_ENC(type, index_type, nr_elems)
+
+#define BTF_STRUCT_ENC(name, nr_elems, sz)	\
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, nr_elems), sz)
+
+#define BTF_UNION_ENC(name, nr_elems, sz)	\
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_UNION, 0, nr_elems), sz)
+
+#define BTF_VAR_ENC(name, type, linkage)	\
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_VAR, 0, 0), type), (linkage)
+#define BTF_VAR_SECINFO_ENC(type, offset, size)	\
+	(type), (offset), (size)
+
+#define BTF_MEMBER_ENC(name, type, bits_offset)	\
+	(name), (type), (bits_offset)
+#define BTF_ENUM_ENC(name, val) (name), (val)
+#define BTF_ENUM64_ENC(name, val_lo32, val_hi32) (name), (val_lo32), (val_hi32)
+#define BTF_MEMBER_OFFSET(bitfield_size, bits_offset) \
+	((bitfield_size) << 24 | (bits_offset))
+
+#define BTF_TYPEDEF_ENC(name, type) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_TYPEDEF, 0, 0), type)
+
+#define BTF_PTR_ENC(type) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_PTR, 0, 0), type)
+
+#define BTF_CONST_ENC(type) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_CONST, 0, 0), type)
+
+#define BTF_VOLATILE_ENC(type) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_VOLATILE, 0, 0), type)
+
+#define BTF_RESTRICT_ENC(type) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_RESTRICT, 0, 0), type)
+
+#define BTF_FUNC_PROTO_ENC(ret_type, nargs) \
+	BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_FUNC_PROTO, 0, nargs), ret_type)
+
+#define BTF_FUNC_PROTO_ARG_ENC(name, type) \
+	(name), (type)
+
+#define BTF_FUNC_ENC(name, func_proto) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FUNC, 0, 0), func_proto)
+
+#define BTF_TYPE_FLOAT_ENC(name, sz) \
+	BTF_TYPE_ENC(name, BTF_INFO_ENC(BTF_KIND_FLOAT, 0, 0), sz)
+
+#define BTF_DECL_ATTR_ENC(value, type, component_idx)	\
+	BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 1, 0), type), (component_idx)
+
+#define BTF_DECL_TAG_ENC(value, type, component_idx)	\
+	BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_DECL_TAG, 0, 0), type), (component_idx)
+
+#define BTF_TYPE_ATTR_ENC(value, type)	\
+	BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_TYPE_TAG, 1, 0), type)
+
+#define BTF_TYPE_TAG_ENC(value, type)	\
+	BTF_TYPE_ENC(value, BTF_INFO_ENC(BTF_KIND_TYPE_TAG, 0, 0), type)
+
+#endif /* _TEST_BTF_H */
diff --git a/tools/testing/selftests/bpf/test_cpp.cpp b/tools/testing/selftests/bpf/test_cpp.cpp
new file mode 100644
index 000000000000..abc2a56ab261
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_cpp.cpp
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+#include <iostream>
+#include <unistd.h>
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <bpf/libbpf.h>
+#include <bpf/bpf.h>
+#include <bpf/btf.h>
+
+#ifndef _Bool
+#define _Bool bool
+#endif
+#include "test_core_extern.skel.h"
+#include "struct_ops_module.skel.h"
+
+template <typename T>
+class Skeleton {
+private:
+	T *skel;
+public:
+	Skeleton(): skel(nullptr) { }
+
+	~Skeleton() { if (skel) T::destroy(skel); }
+
+	int open(const struct bpf_object_open_opts *opts = nullptr)
+	{
+		int err;
+
+		if (skel)
+			return -EBUSY;
+
+		skel = T::open(opts);
+		err = libbpf_get_error(skel);
+		if (err) {
+			skel = nullptr;
+			return err;
+		}
+
+		return 0;
+	}
+
+	int load() { return T::load(skel); }
+
+	int attach() { return T::attach(skel); }
+
+	void detach() { return T::detach(skel); }
+
+	const T* operator->() const { return skel; }
+
+	T* operator->() { return skel; }
+
+	const T *get() const { return skel; }
+};
+
+static void dump_printf(void *ctx, const char *fmt, va_list args)
+{
+}
+
+static void try_skeleton_template()
+{
+	Skeleton<test_core_extern> skel;
+	std::string prog_name;
+	int err;
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+
+	err = skel.open(&opts);
+	if (err) {
+		fprintf(stderr, "Skeleton open failed: %d\n", err);
+		return;
+	}
+
+	skel->data->kern_ver = 123;
+	skel->data->int_val = skel->data->ushort_val;
+
+	err = skel.load();
+	if (err) {
+		fprintf(stderr, "Skeleton load failed: %d\n", err);
+		return;
+	}
+
+	if (!skel->kconfig->CONFIG_BPF_SYSCALL)
+		fprintf(stderr, "Seems like CONFIG_BPF_SYSCALL isn't set?!\n");
+
+	err = skel.attach();
+	if (err) {
+		fprintf(stderr, "Skeleton attach failed: %d\n", err);
+		return;
+	}
+
+	prog_name = bpf_program__name(skel->progs.handle_sys_enter);
+	if (prog_name != "handle_sys_enter")
+		fprintf(stderr, "Unexpected program name: %s\n", prog_name.c_str());
+
+	bpf_link__destroy(skel->links.handle_sys_enter);
+	skel->links.handle_sys_enter = bpf_program__attach(skel->progs.handle_sys_enter);
+
+	skel.detach();
+
+	/* destructor will destroy underlying skeleton */
+}
+
+int main(int argc, char *argv[])
+{
+	struct btf_dump_opts opts = { };
+	struct test_core_extern *skel;
+	struct struct_ops_module *skel2;
+	struct btf *btf;
+	int fd;
+
+	try_skeleton_template();
+
+	/* libbpf.h */
+	libbpf_set_print(NULL);
+
+	/* bpf.h */
+	bpf_prog_get_fd_by_id(0);
+
+	/* btf.h */
+	btf = btf__new(NULL, 0);
+	if (!libbpf_get_error(btf))
+		btf_dump__new(btf, dump_printf, nullptr, &opts);
+
+	/* BPF skeleton */
+	skel = test_core_extern__open_and_load();
+	test_core_extern__destroy(skel);
+
+	skel2 = struct_ops_module__open_and_load();
+	struct_ops_module__destroy(skel2);
+
+	fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
+	if (fd < 0)
+		std::cout << "FAILED to enable stats: " << fd << std::endl;
+	else
+		::close(fd);
+
+	std::cout << "DONE!" << std::endl;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/test_doc_build.sh b/tools/testing/selftests/bpf/test_doc_build.sh
new file mode 100755
index 000000000000..679cf968c7d1
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_doc_build.sh
@@ -0,0 +1,20 @@
+#!/bin/bash
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+set -e
+
+# Assume script is located under tools/testing/selftests/bpf/. We want to start
+# build attempts from the top of kernel repository.
+SCRIPT_REL_PATH=$(realpath $0)
+SCRIPT_REL_DIR=$(dirname $SCRIPT_REL_PATH)
+KDIR_ROOT_DIR=$(realpath $SCRIPT_REL_DIR/../../../../)
+SCRIPT_REL_DIR=$(dirname $(realpath --relative-to=$KDIR_ROOT_DIR $SCRIPT_REL_PATH))
+cd $KDIR_ROOT_DIR
+
+if [ ! -e $PWD/$SCRIPT_REL_DIR/Makefile ]; then
+	echo -e "skip:    bpftool files not found!\n"
+	exit 4 # KSFT_SKIP=4
+fi
+
+for tgt in docs docs-clean; do
+	make -s -C $PWD/$SCRIPT_REL_DIR $tgt;
+done
diff --git a/tools/testing/selftests/bpf/test_ftrace.sh b/tools/testing/selftests/bpf/test_ftrace.sh
new file mode 100755
index 000000000000..f5109eb0e951
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_ftrace.sh
@@ -0,0 +1,44 @@
+#!/bin/bash
+
+if [[ -e /sys/kernel/tracing/trace ]]; then
+    TR=/sys/kernel/tracing/
+else
+    TR=/sys/kernel/debug/tracing/
+fi
+
+clear_trace() { # reset trace output
+    echo > $TR/trace
+}
+
+disable_tracing() { # stop trace recording
+    echo 0 > $TR/tracing_on
+}
+
+enable_tracing() { # start trace recording
+    echo 1 > $TR/tracing_on
+}
+
+reset_tracer() { # reset the current tracer
+    echo nop > $TR/current_tracer
+}
+
+disable_tracing
+clear_trace
+
+echo "" > $TR/set_ftrace_filter
+echo '*printk* *console* *wake* *serial* *lock*' > $TR/set_ftrace_notrace
+
+echo "bpf_prog_test*" > $TR/set_graph_function
+echo "" > $TR/set_graph_notrace
+
+echo function_graph > $TR/current_tracer
+
+enable_tracing
+./test_progs -t fentry
+./test_progs -t fexit
+disable_tracing
+clear_trace
+
+reset_tracer
+
+exit 0
diff --git a/tools/testing/selftests/bpf/test_iptunnel_common.h b/tools/testing/selftests/bpf/test_iptunnel_common.h
new file mode 100644
index 000000000000..1d5ba839ddea
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_iptunnel_common.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2016 Facebook
+ */
+#ifndef _TEST_IPTNL_COMMON_H
+#define _TEST_IPTNL_COMMON_H
+
+#include <linux/types.h>
+
+#define MAX_IPTNL_ENTRIES 256U
+
+struct vip {
+	union {
+		__u32 v6[4];
+		__u32 v4;
+	} daddr;
+	__u16 dport;
+	__u16 family;
+	__u8 protocol;
+};
+
+struct iptnl_info {
+	union {
+		__u32 v6[4];
+		__u32 v4;
+	} saddr;
+	union {
+		__u32 v6[4];
+		__u32 v4;
+	} daddr;
+	__u16 family;
+	__u8 dmac[6];
+};
+
+#endif
diff --git a/tools/testing/selftests/bpf/test_kmod.sh b/tools/testing/selftests/bpf/test_kmod.sh
new file mode 100755
index 000000000000..50dca53ac536
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmod.sh
@@ -0,0 +1,73 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Usage:
+# ./test_kmod.sh [module_param]...
+# Ex.: ./test_kmod.sh test_range=1,3
+# All the parameters are passed to the kernel module.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+msg="skip all tests:"
+if [ "$(id -u)" != "0" ]; then
+	echo $msg please run this as root >&2
+	exit $ksft_skip
+fi
+
+if [ "$building_out_of_srctree" ]; then
+	# We are in linux-build/kselftest/bpf
+	OUTPUT=../../
+else
+	# We are in linux/tools/testing/selftests/bpf
+	OUTPUT=../../../../
+fi
+
+test_run()
+{
+	sysctl -w net.core.bpf_jit_enable=$1 2>&1 > /dev/null
+	sysctl -w net.core.bpf_jit_harden=$2 2>&1 > /dev/null
+
+	echo "[ JIT enabled:$1 hardened:$2 ]"
+	shift 2
+	dmesg -C
+	if [ -f ${OUTPUT}/lib/test_bpf.ko ]; then
+		insmod ${OUTPUT}/lib/test_bpf.ko "$@" 2> /dev/null
+		if [ $? -ne 0 ]; then
+			rc=1
+		fi
+	else
+		# Use modprobe dry run to check for missing test_bpf module
+		if ! /sbin/modprobe -q -n test_bpf "$@"; then
+			echo "test_bpf: [SKIP]"
+		elif /sbin/modprobe -q test_bpf "$@"; then
+			echo "test_bpf: ok"
+		else
+			echo "test_bpf: [FAIL]"
+			rc=1
+		fi
+	fi
+	rmmod  test_bpf 2> /dev/null
+	dmesg | grep FAIL
+}
+
+test_save()
+{
+	JE=`sysctl -n net.core.bpf_jit_enable`
+	JH=`sysctl -n net.core.bpf_jit_harden`
+}
+
+test_restore()
+{
+	sysctl -w net.core.bpf_jit_enable=$JE 2>&1 > /dev/null
+	sysctl -w net.core.bpf_jit_harden=$JH 2>&1 > /dev/null
+}
+
+rc=0
+test_save
+test_run 0 0 "$@"
+test_run 1 0 "$@"
+test_run 1 1 "$@"
+test_run 1 2 "$@"
+test_restore
+exit $rc
diff --git a/tools/testing/selftests/bpf/test_kmods/.gitignore b/tools/testing/selftests/bpf/test_kmods/.gitignore
new file mode 100644
index 000000000000..ded513777281
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/.gitignore
@@ -0,0 +1,6 @@
+*.mod
+*.mod.c
+*.o
+.ko
+/Module.symvers
+/modules.order
diff --git a/tools/testing/selftests/bpf/test_kmods/Makefile b/tools/testing/selftests/bpf/test_kmods/Makefile
new file mode 100644
index 000000000000..63c4d3f6a12f
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/Makefile
@@ -0,0 +1,21 @@
+TEST_KMOD_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
+KDIR ?= $(abspath $(TEST_KMOD_DIR)/../../../../..)
+
+ifeq ($(V),1)
+Q =
+else
+Q = @
+endif
+
+MODULES = bpf_testmod.ko bpf_test_no_cfi.ko bpf_test_modorder_x.ko \
+	bpf_test_modorder_y.ko bpf_test_rqspinlock.ko
+
+$(foreach m,$(MODULES),$(eval obj-m += $(m:.ko=.o)))
+
+CFLAGS_bpf_testmod.o = -I$(src)
+
+all:
+	$(Q)$(MAKE) -C $(KDIR) M=$(TEST_KMOD_DIR) modules
+
+clean:
+	$(Q)$(MAKE) -C $(KDIR) M=$(TEST_KMOD_DIR) clean
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_x.c b/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_x.c
new file mode 100644
index 000000000000..0cc747fa912f
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_x.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+__bpf_kfunc_start_defs();
+
+__bpf_kfunc int bpf_test_modorder_retx(void)
+{
+	return 'x';
+}
+
+__bpf_kfunc_end_defs();
+
+BTF_KFUNCS_START(bpf_test_modorder_kfunc_x_ids)
+BTF_ID_FLAGS(func, bpf_test_modorder_retx);
+BTF_KFUNCS_END(bpf_test_modorder_kfunc_x_ids)
+
+static const struct btf_kfunc_id_set bpf_test_modorder_x_set = {
+	.owner = THIS_MODULE,
+	.set = &bpf_test_modorder_kfunc_x_ids,
+};
+
+static int __init bpf_test_modorder_x_init(void)
+{
+	return register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS,
+					 &bpf_test_modorder_x_set);
+}
+
+static void __exit bpf_test_modorder_x_exit(void)
+{
+}
+
+module_init(bpf_test_modorder_x_init);
+module_exit(bpf_test_modorder_x_exit);
+
+MODULE_DESCRIPTION("BPF selftest ordertest module X");
+MODULE_LICENSE("GPL");
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_y.c b/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_y.c
new file mode 100644
index 000000000000..c627ee085d13
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_test_modorder_y.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+__bpf_kfunc_start_defs();
+
+__bpf_kfunc int bpf_test_modorder_rety(void)
+{
+	return 'y';
+}
+
+__bpf_kfunc_end_defs();
+
+BTF_KFUNCS_START(bpf_test_modorder_kfunc_y_ids)
+BTF_ID_FLAGS(func, bpf_test_modorder_rety);
+BTF_KFUNCS_END(bpf_test_modorder_kfunc_y_ids)
+
+static const struct btf_kfunc_id_set bpf_test_modorder_y_set = {
+	.owner = THIS_MODULE,
+	.set = &bpf_test_modorder_kfunc_y_ids,
+};
+
+static int __init bpf_test_modorder_y_init(void)
+{
+	return register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS,
+					 &bpf_test_modorder_y_set);
+}
+
+static void __exit bpf_test_modorder_y_exit(void)
+{
+}
+
+module_init(bpf_test_modorder_y_init);
+module_exit(bpf_test_modorder_y_exit);
+
+MODULE_DESCRIPTION("BPF selftest ordertest module Y");
+MODULE_LICENSE("GPL");
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_test_no_cfi.c b/tools/testing/selftests/bpf/test_kmods/bpf_test_no_cfi.c
new file mode 100644
index 000000000000..948eb3962732
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_test_no_cfi.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <linux/init.h>
+#include <linux/module.h>
+
+struct bpf_test_no_cfi_ops {
+	void (*fn_1)(void);
+	void (*fn_2)(void);
+};
+
+static int dummy_init(struct btf *btf)
+{
+	return 0;
+}
+
+static int dummy_init_member(const struct btf_type *t,
+			     const struct btf_member *member,
+			     void *kdata, const void *udata)
+{
+	return 0;
+}
+
+static int dummy_reg(void *kdata, struct bpf_link *link)
+{
+	return 0;
+}
+
+static void dummy_unreg(void *kdata, struct bpf_link *link)
+{
+}
+
+static const struct bpf_verifier_ops dummy_verifier_ops;
+
+static void bpf_test_no_cfi_ops__fn_1(void)
+{
+}
+
+static void bpf_test_no_cfi_ops__fn_2(void)
+{
+}
+
+static struct bpf_test_no_cfi_ops __test_no_cif_ops = {
+	.fn_1 = bpf_test_no_cfi_ops__fn_1,
+	.fn_2 = bpf_test_no_cfi_ops__fn_2,
+};
+
+static struct bpf_struct_ops test_no_cif_ops = {
+	.verifier_ops = &dummy_verifier_ops,
+	.init = dummy_init,
+	.init_member = dummy_init_member,
+	.reg = dummy_reg,
+	.unreg = dummy_unreg,
+	.name = "bpf_test_no_cfi_ops",
+	.owner = THIS_MODULE,
+};
+
+static int bpf_test_no_cfi_init(void)
+{
+	int ret;
+
+	ret = register_bpf_struct_ops(&test_no_cif_ops,
+				      bpf_test_no_cfi_ops);
+	if (!ret)
+		return -EINVAL;
+
+	test_no_cif_ops.cfi_stubs = &__test_no_cif_ops;
+	ret = register_bpf_struct_ops(&test_no_cif_ops,
+				      bpf_test_no_cfi_ops);
+	return ret;
+}
+
+static void bpf_test_no_cfi_exit(void)
+{
+}
+
+module_init(bpf_test_no_cfi_init);
+module_exit(bpf_test_no_cfi_exit);
+
+MODULE_AUTHOR("Kuifeng Lee");
+MODULE_DESCRIPTION("BPF no cfi_stubs test module");
+MODULE_LICENSE("Dual BSD/GPL");
+
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_test_rqspinlock.c b/tools/testing/selftests/bpf/test_kmods/bpf_test_rqspinlock.c
new file mode 100644
index 000000000000..7b4ae5e81d32
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_test_rqspinlock.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025 Meta Platforms, Inc. and affiliates. */
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/prandom.h>
+#include <linux/ktime.h>
+#include <asm/rqspinlock.h>
+#include <linux/perf_event.h>
+#include <linux/kthread.h>
+#include <linux/atomic.h>
+#include <linux/slab.h>
+
+static struct perf_event_attr hw_attr = {
+	.type		= PERF_TYPE_HARDWARE,
+	.config		= PERF_COUNT_HW_CPU_CYCLES,
+	.size		= sizeof(struct perf_event_attr),
+	.pinned		= 1,
+	.disabled	= 1,
+	.sample_period	= 100000,
+};
+
+static rqspinlock_t lock_a;
+static rqspinlock_t lock_b;
+static rqspinlock_t lock_c;
+
+#define RQSL_SLOW_THRESHOLD_MS 10
+static const unsigned int rqsl_hist_ms[] = {
+	1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
+	12, 14, 16, 18, 20, 25, 30, 40, 50, 75,
+	100, 150, 200, 250, 1000,
+};
+#define RQSL_NR_HIST_BUCKETS ARRAY_SIZE(rqsl_hist_ms)
+
+enum rqsl_context {
+	RQSL_CTX_NORMAL = 0,
+	RQSL_CTX_NMI,
+	RQSL_CTX_MAX,
+};
+
+struct rqsl_cpu_hist {
+	atomic64_t hist[RQSL_CTX_MAX][RQSL_NR_HIST_BUCKETS];
+	atomic64_t success[RQSL_CTX_MAX];
+	atomic64_t failure[RQSL_CTX_MAX];
+};
+
+static DEFINE_PER_CPU(struct rqsl_cpu_hist, rqsl_cpu_hists);
+
+enum rqsl_mode {
+	RQSL_MODE_AA = 0,
+	RQSL_MODE_ABBA,
+	RQSL_MODE_ABBCCA,
+};
+
+static int test_mode = RQSL_MODE_AA;
+module_param(test_mode, int, 0644);
+MODULE_PARM_DESC(test_mode,
+		 "rqspinlock test mode: 0 = AA, 1 = ABBA, 2 = ABBCCA");
+
+static int normal_delay = 20;
+module_param(normal_delay, int, 0644);
+MODULE_PARM_DESC(normal_delay,
+		 "rqspinlock critical section length for normal context (20ms default)");
+
+static int nmi_delay = 10;
+module_param(nmi_delay, int, 0644);
+MODULE_PARM_DESC(nmi_delay,
+		 "rqspinlock critical section length for NMI context (10ms default)");
+
+static struct perf_event **rqsl_evts;
+static int rqsl_nevts;
+
+static struct task_struct **rqsl_threads;
+static int rqsl_nthreads;
+static atomic_t rqsl_ready_cpus = ATOMIC_INIT(0);
+
+static int pause = 0;
+
+static const char *rqsl_mode_names[] = {
+	[RQSL_MODE_AA] = "AA",
+	[RQSL_MODE_ABBA] = "ABBA",
+	[RQSL_MODE_ABBCCA] = "ABBCCA",
+};
+
+struct rqsl_lock_pair {
+	rqspinlock_t *worker_lock;
+	rqspinlock_t *nmi_lock;
+};
+
+static struct rqsl_lock_pair rqsl_get_lock_pair(int cpu)
+{
+	int mode = READ_ONCE(test_mode);
+
+	switch (mode) {
+	default:
+	case RQSL_MODE_AA:
+		return (struct rqsl_lock_pair){ &lock_a, &lock_a };
+	case RQSL_MODE_ABBA:
+		if (cpu & 1)
+			return (struct rqsl_lock_pair){ &lock_b, &lock_a };
+		return (struct rqsl_lock_pair){ &lock_a, &lock_b };
+	case RQSL_MODE_ABBCCA:
+		switch (cpu % 3) {
+		case 0:
+			return (struct rqsl_lock_pair){ &lock_a, &lock_b };
+		case 1:
+			return (struct rqsl_lock_pair){ &lock_b, &lock_c };
+		default:
+			return (struct rqsl_lock_pair){ &lock_c, &lock_a };
+		}
+	}
+}
+
+static u32 rqsl_hist_bucket_idx(u32 delta_ms)
+{
+	int i;
+
+	for (i = 0; i < RQSL_NR_HIST_BUCKETS; i++) {
+		if (delta_ms <= rqsl_hist_ms[i])
+			return i;
+	}
+
+	return RQSL_NR_HIST_BUCKETS - 1;
+}
+
+static void rqsl_record_lock_result(u64 delta_ns, enum rqsl_context ctx, int ret)
+{
+	struct rqsl_cpu_hist *hist = this_cpu_ptr(&rqsl_cpu_hists);
+	u32 delta_ms = DIV_ROUND_UP_ULL(delta_ns, NSEC_PER_MSEC);
+	u32 bucket = rqsl_hist_bucket_idx(delta_ms);
+	atomic64_t *buckets = hist->hist[ctx];
+
+	atomic64_inc(&buckets[bucket]);
+	if (!ret)
+		atomic64_inc(&hist->success[ctx]);
+	else
+		atomic64_inc(&hist->failure[ctx]);
+}
+
+static int rqspinlock_worker_fn(void *arg)
+{
+	int cpu = smp_processor_id();
+	unsigned long flags;
+	u64 start_ns;
+	int ret;
+
+	if (cpu) {
+		atomic_inc(&rqsl_ready_cpus);
+
+		while (!kthread_should_stop()) {
+			struct rqsl_lock_pair locks = rqsl_get_lock_pair(cpu);
+			rqspinlock_t *worker_lock = locks.worker_lock;
+
+			if (READ_ONCE(pause)) {
+				msleep(1000);
+				continue;
+			}
+			start_ns = ktime_get_mono_fast_ns();
+			ret = raw_res_spin_lock_irqsave(worker_lock, flags);
+			rqsl_record_lock_result(ktime_get_mono_fast_ns() - start_ns,
+						RQSL_CTX_NORMAL, ret);
+			mdelay(normal_delay);
+			if (!ret)
+				raw_res_spin_unlock_irqrestore(worker_lock, flags);
+			cpu_relax();
+		}
+		return 0;
+	}
+
+	while (!kthread_should_stop()) {
+		int expected = rqsl_nthreads > 0 ? rqsl_nthreads - 1 : 0;
+		int ready = atomic_read(&rqsl_ready_cpus);
+
+		if (ready == expected && !READ_ONCE(pause)) {
+			for (int i = 0; i < rqsl_nevts; i++)
+				perf_event_enable(rqsl_evts[i]);
+			pr_err("Waiting 5 secs to pause the test\n");
+			msleep(1000 * 5);
+			WRITE_ONCE(pause, 1);
+			pr_err("Paused the test\n");
+		} else {
+			msleep(1000);
+			cpu_relax();
+		}
+	}
+	return 0;
+}
+
+static void nmi_cb(struct perf_event *event, struct perf_sample_data *data,
+		   struct pt_regs *regs)
+{
+	struct rqsl_lock_pair locks;
+	int cpu = smp_processor_id();
+	unsigned long flags;
+	u64 start_ns;
+	int ret;
+
+	if (!cpu || READ_ONCE(pause))
+		return;
+
+	locks = rqsl_get_lock_pair(cpu);
+	start_ns = ktime_get_mono_fast_ns();
+	ret = raw_res_spin_lock_irqsave(locks.nmi_lock, flags);
+	rqsl_record_lock_result(ktime_get_mono_fast_ns() - start_ns,
+				RQSL_CTX_NMI, ret);
+
+	mdelay(nmi_delay);
+
+	if (!ret)
+		raw_res_spin_unlock_irqrestore(locks.nmi_lock, flags);
+}
+
+static void free_rqsl_threads(void)
+{
+	int i;
+
+	if (rqsl_threads) {
+		for_each_online_cpu(i) {
+			if (rqsl_threads[i])
+				kthread_stop(rqsl_threads[i]);
+		}
+		kfree(rqsl_threads);
+	}
+}
+
+static void free_rqsl_evts(void)
+{
+	int i;
+
+	if (rqsl_evts) {
+		for (i = 0; i < rqsl_nevts; i++) {
+			if (rqsl_evts[i])
+				perf_event_release_kernel(rqsl_evts[i]);
+		}
+		kfree(rqsl_evts);
+	}
+}
+
+static int bpf_test_rqspinlock_init(void)
+{
+	int i, ret;
+	int ncpus = num_online_cpus();
+
+	if (test_mode < RQSL_MODE_AA || test_mode > RQSL_MODE_ABBCCA) {
+		pr_err("Invalid mode %d\n", test_mode);
+		return -EINVAL;
+	}
+
+	pr_err("Mode = %s\n", rqsl_mode_names[test_mode]);
+
+	if (ncpus < test_mode + 2)
+		return -ENOTSUPP;
+
+	raw_res_spin_lock_init(&lock_a);
+	raw_res_spin_lock_init(&lock_b);
+	raw_res_spin_lock_init(&lock_c);
+
+	rqsl_evts = kcalloc(ncpus - 1, sizeof(*rqsl_evts), GFP_KERNEL);
+	if (!rqsl_evts)
+		return -ENOMEM;
+	rqsl_nevts = ncpus - 1;
+
+	for (i = 1; i < ncpus; i++) {
+		struct perf_event *e;
+
+		e = perf_event_create_kernel_counter(&hw_attr, i, NULL, nmi_cb, NULL);
+		if (IS_ERR(e)) {
+			ret = PTR_ERR(e);
+			goto err_perf_events;
+		}
+		rqsl_evts[i - 1] = e;
+	}
+
+	rqsl_threads = kcalloc(ncpus, sizeof(*rqsl_threads), GFP_KERNEL);
+	if (!rqsl_threads) {
+		ret = -ENOMEM;
+		goto err_perf_events;
+	}
+	rqsl_nthreads = ncpus;
+
+	for_each_online_cpu(i) {
+		struct task_struct *t;
+
+		t = kthread_create(rqspinlock_worker_fn, NULL, "rqsl_w/%d", i);
+		if (IS_ERR(t)) {
+			ret = PTR_ERR(t);
+			goto err_threads_create;
+		}
+		kthread_bind(t, i);
+		rqsl_threads[i] = t;
+		wake_up_process(t);
+	}
+	return 0;
+
+err_threads_create:
+	free_rqsl_threads();
+err_perf_events:
+	free_rqsl_evts();
+	return ret;
+}
+
+module_init(bpf_test_rqspinlock_init);
+
+static void rqsl_print_histograms(void)
+{
+	int cpu, i;
+
+	pr_err("rqspinlock acquisition latency histogram (ms):\n");
+
+	for_each_online_cpu(cpu) {
+		struct rqsl_cpu_hist *hist = per_cpu_ptr(&rqsl_cpu_hists, cpu);
+		u64 norm_counts[RQSL_NR_HIST_BUCKETS];
+		u64 nmi_counts[RQSL_NR_HIST_BUCKETS];
+		u64 total_counts[RQSL_NR_HIST_BUCKETS];
+		u64 norm_success, nmi_success, success_total;
+		u64 norm_failure, nmi_failure, failure_total;
+		u64 norm_total = 0, nmi_total = 0, total = 0;
+		bool has_slow = false;
+
+		for (i = 0; i < RQSL_NR_HIST_BUCKETS; i++) {
+			norm_counts[i] = atomic64_read(&hist->hist[RQSL_CTX_NORMAL][i]);
+			nmi_counts[i] = atomic64_read(&hist->hist[RQSL_CTX_NMI][i]);
+			total_counts[i] = norm_counts[i] + nmi_counts[i];
+			norm_total += norm_counts[i];
+			nmi_total += nmi_counts[i];
+			total += total_counts[i];
+			if (rqsl_hist_ms[i] > RQSL_SLOW_THRESHOLD_MS &&
+			    total_counts[i])
+				has_slow = true;
+		}
+
+		norm_success = atomic64_read(&hist->success[RQSL_CTX_NORMAL]);
+		nmi_success = atomic64_read(&hist->success[RQSL_CTX_NMI]);
+		norm_failure = atomic64_read(&hist->failure[RQSL_CTX_NORMAL]);
+		nmi_failure = atomic64_read(&hist->failure[RQSL_CTX_NMI]);
+		success_total = norm_success + nmi_success;
+		failure_total = norm_failure + nmi_failure;
+
+		if (!total)
+			continue;
+
+		if (!has_slow) {
+			pr_err(" cpu%d: total %llu (normal %llu, nmi %llu) | "
+			       "success %llu (normal %llu, nmi %llu) | "
+			       "failure %llu (normal %llu, nmi %llu), all within 0-%ums\n",
+			       cpu, total, norm_total, nmi_total,
+			       success_total, norm_success, nmi_success,
+			       failure_total, norm_failure, nmi_failure,
+			       RQSL_SLOW_THRESHOLD_MS);
+			continue;
+		}
+
+		pr_err(" cpu%d: total %llu (normal %llu, nmi %llu) | "
+		       "success %llu (normal %llu, nmi %llu) | "
+		       "failure %llu (normal %llu, nmi %llu)\n",
+		       cpu, total, norm_total, nmi_total,
+		       success_total, norm_success, nmi_success,
+		       failure_total, norm_failure, nmi_failure);
+		for (i = 0; i < RQSL_NR_HIST_BUCKETS; i++) {
+			unsigned int start_ms;
+
+			if (!total_counts[i])
+				continue;
+
+			start_ms = i == 0 ? 0 : rqsl_hist_ms[i - 1] + 1;
+			if (i == RQSL_NR_HIST_BUCKETS - 1) {
+				pr_err("   >= %ums: total %llu (normal %llu, nmi %llu)\n",
+				       start_ms, total_counts[i],
+				       norm_counts[i], nmi_counts[i]);
+			} else {
+				pr_err("   %u-%ums: total %llu (normal %llu, nmi %llu)\n",
+				       start_ms, rqsl_hist_ms[i],
+				       total_counts[i],
+				       norm_counts[i], nmi_counts[i]);
+			}
+		}
+	}
+}
+
+static void bpf_test_rqspinlock_exit(void)
+{
+	WRITE_ONCE(pause, 1);
+	free_rqsl_threads();
+	free_rqsl_evts();
+	rqsl_print_histograms();
+}
+
+module_exit(bpf_test_rqspinlock_exit);
+
+MODULE_AUTHOR("Kumar Kartikeya Dwivedi");
+MODULE_DESCRIPTION("BPF rqspinlock stress test module");
+MODULE_LICENSE("GPL");
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_testmod-events.h b/tools/testing/selftests/bpf/test_kmods/bpf_testmod-events.h
new file mode 100644
index 000000000000..aeef86b3da74
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_testmod-events.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM bpf_testmod
+
+#if !defined(_BPF_TESTMOD_EVENTS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _BPF_TESTMOD_EVENTS_H
+
+#include <linux/tracepoint.h>
+#include "bpf_testmod.h"
+
+TRACE_EVENT(bpf_testmod_test_read,
+	TP_PROTO(struct task_struct *task, struct bpf_testmod_test_read_ctx *ctx),
+	TP_ARGS(task, ctx),
+	TP_STRUCT__entry(
+		__field(pid_t, pid)
+		__array(char, comm, TASK_COMM_LEN)
+		__field(loff_t, off)
+		__field(size_t, len)
+	),
+	TP_fast_assign(
+		__entry->pid = task->pid;
+		memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
+		__entry->off = ctx->off;
+		__entry->len = ctx->len;
+	),
+	TP_printk("pid=%d comm=%s off=%llu len=%zu",
+		  __entry->pid, __entry->comm, __entry->off, __entry->len)
+);
+
+/* A bare tracepoint with no event associated with it */
+DECLARE_TRACE(bpf_testmod_test_write_bare,
+	TP_PROTO(struct task_struct *task, struct bpf_testmod_test_write_ctx *ctx),
+	TP_ARGS(task, ctx)
+);
+
+/* Used in bpf_testmod_test_read() to test __nullable suffix */
+DECLARE_TRACE(bpf_testmod_test_nullable_bare,
+	TP_PROTO(struct bpf_testmod_test_read_ctx *ctx__nullable),
+	TP_ARGS(ctx__nullable)
+);
+
+struct sk_buff;
+
+DECLARE_TRACE(bpf_testmod_test_raw_tp_null,
+	TP_PROTO(struct sk_buff *skb),
+	TP_ARGS(skb)
+);
+
+
+#undef BPF_TESTMOD_DECLARE_TRACE
+#ifdef DECLARE_TRACE_WRITABLE
+#define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
+	DECLARE_TRACE_WRITABLE(call, PARAMS(proto), PARAMS(args), size)
+#else
+#define BPF_TESTMOD_DECLARE_TRACE(call, proto, args, size) \
+	DECLARE_TRACE(call, PARAMS(proto), PARAMS(args))
+#endif
+
+BPF_TESTMOD_DECLARE_TRACE(bpf_testmod_test_writable_bare,
+	TP_PROTO(struct bpf_testmod_test_writable_ctx *ctx),
+	TP_ARGS(ctx),
+	sizeof(struct bpf_testmod_test_writable_ctx)
+);
+
+#endif /* _BPF_TESTMOD_EVENTS_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE bpf_testmod-events
+#include <trace/define_trace.h>
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_testmod.c b/tools/testing/selftests/bpf/test_kmods/bpf_testmod.c
new file mode 100644
index 000000000000..1669a7eeda26
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_testmod.c
@@ -0,0 +1,1787 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2020 Facebook */
+#include <linux/bpf.h>
+#include <linux/btf.h>
+#include <linux/btf_ids.h>
+#include <linux/delay.h>
+#include <linux/error-injection.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/percpu-defs.h>
+#include <linux/sysfs.h>
+#include <linux/tracepoint.h>
+#include <linux/net.h>
+#include <linux/socket.h>
+#include <linux/nsproxy.h>
+#include <linux/inet.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/un.h>
+#include <linux/filter.h>
+#include <net/sock.h>
+#include <linux/namei.h>
+#include "bpf_testmod.h"
+#include "bpf_testmod_kfunc.h"
+
+#define CREATE_TRACE_POINTS
+#include "bpf_testmod-events.h"
+
+#define CONNECT_TIMEOUT_SEC 1
+
+typedef int (*func_proto_typedef)(long);
+typedef int (*func_proto_typedef_nested1)(func_proto_typedef);
+typedef int (*func_proto_typedef_nested2)(func_proto_typedef_nested1);
+
+DEFINE_PER_CPU(int, bpf_testmod_ksym_percpu) = 123;
+long bpf_testmod_test_struct_arg_result;
+static DEFINE_MUTEX(sock_lock);
+static struct socket *sock;
+
+struct bpf_testmod_struct_arg_1 {
+	int a;
+};
+struct bpf_testmod_struct_arg_2 {
+	long a;
+	long b;
+};
+
+struct bpf_testmod_struct_arg_3 {
+	int a;
+	int b[];
+};
+
+struct bpf_testmod_struct_arg_4 {
+	u64 a;
+	int b;
+};
+
+struct bpf_testmod_struct_arg_5 {
+	char a;
+	short b;
+	int c;
+	long d;
+};
+
+union bpf_testmod_union_arg_1 {
+	char a;
+	short b;
+	struct bpf_testmod_struct_arg_1 arg;
+};
+
+union bpf_testmod_union_arg_2 {
+	int a;
+	long b;
+	struct bpf_testmod_struct_arg_2 arg;
+};
+
+__bpf_hook_start();
+
+noinline int
+bpf_testmod_test_struct_arg_1(struct bpf_testmod_struct_arg_2 a, int b, int c) {
+	bpf_testmod_test_struct_arg_result = a.a + a.b  + b + c;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_2(int a, struct bpf_testmod_struct_arg_2 b, int c) {
+	bpf_testmod_test_struct_arg_result = a + b.a + b.b + c;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_3(int a, int b, struct bpf_testmod_struct_arg_2 c) {
+	bpf_testmod_test_struct_arg_result = a + b + c.a + c.b;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_4(struct bpf_testmod_struct_arg_1 a, int b,
+			      int c, int d, struct bpf_testmod_struct_arg_2 e) {
+	bpf_testmod_test_struct_arg_result = a.a + b + c + d + e.a + e.b;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_5(void) {
+	bpf_testmod_test_struct_arg_result = 1;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_6(struct bpf_testmod_struct_arg_3 *a) {
+	bpf_testmod_test_struct_arg_result = a->b[0];
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_7(u64 a, void *b, short c, int d, void *e,
+			      struct bpf_testmod_struct_arg_4 f)
+{
+	bpf_testmod_test_struct_arg_result = a + (long)b + c + d +
+		(long)e + f.a + f.b;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_8(u64 a, void *b, short c, int d, void *e,
+			      struct bpf_testmod_struct_arg_4 f, int g)
+{
+	bpf_testmod_test_struct_arg_result = a + (long)b + c + d +
+		(long)e + f.a + f.b + g;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_struct_arg_9(u64 a, void *b, short c, int d, void *e, char f,
+			      short g, struct bpf_testmod_struct_arg_5 h, long i)
+{
+	bpf_testmod_test_struct_arg_result = a + (long)b + c + d + (long)e +
+		f + g + h.a + h.b + h.c + h.d + i;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_union_arg_1(union bpf_testmod_union_arg_1 a, int b, int c)
+{
+	bpf_testmod_test_struct_arg_result = a.arg.a + b + c;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_union_arg_2(int a, union bpf_testmod_union_arg_2 b)
+{
+	bpf_testmod_test_struct_arg_result = a + b.arg.a + b.arg.b;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+noinline int
+bpf_testmod_test_arg_ptr_to_struct(struct bpf_testmod_struct_arg_1 *a) {
+	bpf_testmod_test_struct_arg_result = a->a;
+	return bpf_testmod_test_struct_arg_result;
+}
+
+__weak noinline void bpf_testmod_looooooooooooooooooooooooooooooong_name(void)
+{
+}
+
+__bpf_kfunc void
+bpf_testmod_test_mod_kfunc(int i)
+{
+	*(int *)this_cpu_ptr(&bpf_testmod_ksym_percpu) = i;
+}
+
+__bpf_kfunc int bpf_iter_testmod_seq_new(struct bpf_iter_testmod_seq *it, s64 value, int cnt)
+{
+	it->cnt = cnt;
+
+	if (cnt < 0)
+		return -EINVAL;
+
+	it->value = value;
+
+	return 0;
+}
+
+__bpf_kfunc s64 *bpf_iter_testmod_seq_next(struct bpf_iter_testmod_seq* it)
+{
+	if (it->cnt <= 0)
+		return NULL;
+
+	it->cnt--;
+
+	return &it->value;
+}
+
+__bpf_kfunc s64 bpf_iter_testmod_seq_value(int val, struct bpf_iter_testmod_seq* it__iter)
+{
+	if (it__iter->cnt < 0)
+		return 0;
+
+	return val + it__iter->value;
+}
+
+__bpf_kfunc void bpf_iter_testmod_seq_destroy(struct bpf_iter_testmod_seq *it)
+{
+	it->cnt = 0;
+}
+
+__bpf_kfunc void bpf_kfunc_common_test(void)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_dynptr_test(struct bpf_dynptr *ptr,
+				       struct bpf_dynptr *ptr__nullable)
+{
+}
+
+__bpf_kfunc struct sk_buff *bpf_kfunc_nested_acquire_nonzero_offset_test(struct sk_buff_head *ptr)
+{
+	return NULL;
+}
+
+__bpf_kfunc struct sk_buff *bpf_kfunc_nested_acquire_zero_offset_test(struct sock_common *ptr)
+{
+	return NULL;
+}
+
+__bpf_kfunc void bpf_kfunc_nested_release_test(struct sk_buff *ptr)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_trusted_vma_test(struct vm_area_struct *ptr)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_trusted_task_test(struct task_struct *ptr)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_trusted_num_test(int *ptr)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_rcu_task_test(struct task_struct *ptr)
+{
+}
+
+__bpf_kfunc struct task_struct *bpf_kfunc_ret_rcu_test(void)
+{
+	return NULL;
+}
+
+__bpf_kfunc int *bpf_kfunc_ret_rcu_test_nostruct(int rdonly_buf_size)
+{
+	return NULL;
+}
+
+__bpf_kfunc struct bpf_testmod_ctx *
+bpf_testmod_ctx_create(int *err)
+{
+	struct bpf_testmod_ctx *ctx;
+
+	ctx = kzalloc(sizeof(*ctx), GFP_ATOMIC);
+	if (!ctx) {
+		*err = -ENOMEM;
+		return NULL;
+	}
+	refcount_set(&ctx->usage, 1);
+
+	return ctx;
+}
+
+static void testmod_free_cb(struct rcu_head *head)
+{
+	struct bpf_testmod_ctx *ctx;
+
+	ctx = container_of(head, struct bpf_testmod_ctx, rcu);
+	kfree(ctx);
+}
+
+__bpf_kfunc void bpf_testmod_ctx_release(struct bpf_testmod_ctx *ctx)
+{
+	if (!ctx)
+		return;
+	if (refcount_dec_and_test(&ctx->usage))
+		call_rcu(&ctx->rcu, testmod_free_cb);
+}
+
+static struct bpf_testmod_ops3 *st_ops3;
+
+static int bpf_testmod_test_3(void)
+{
+	return 0;
+}
+
+static int bpf_testmod_test_4(void)
+{
+	return 0;
+}
+
+static struct bpf_testmod_ops3 __bpf_testmod_ops3 = {
+	.test_1 = bpf_testmod_test_3,
+	.test_2 = bpf_testmod_test_4,
+};
+
+static void bpf_testmod_test_struct_ops3(void)
+{
+	if (st_ops3)
+		st_ops3->test_1();
+}
+
+__bpf_kfunc void bpf_testmod_ops3_call_test_1(void)
+{
+	st_ops3->test_1();
+}
+
+__bpf_kfunc void bpf_testmod_ops3_call_test_2(void)
+{
+	st_ops3->test_2();
+}
+
+struct bpf_testmod_btf_type_tag_1 {
+	int a;
+};
+
+struct bpf_testmod_btf_type_tag_2 {
+	struct bpf_testmod_btf_type_tag_1 __user *p;
+};
+
+struct bpf_testmod_btf_type_tag_3 {
+	struct bpf_testmod_btf_type_tag_1 __percpu *p;
+};
+
+noinline int
+bpf_testmod_test_btf_type_tag_user_1(struct bpf_testmod_btf_type_tag_1 __user *arg) {
+	BTF_TYPE_EMIT(func_proto_typedef);
+	BTF_TYPE_EMIT(func_proto_typedef_nested1);
+	BTF_TYPE_EMIT(func_proto_typedef_nested2);
+	return arg->a;
+}
+
+noinline int
+bpf_testmod_test_btf_type_tag_user_2(struct bpf_testmod_btf_type_tag_2 *arg) {
+	return arg->p->a;
+}
+
+noinline int
+bpf_testmod_test_btf_type_tag_percpu_1(struct bpf_testmod_btf_type_tag_1 __percpu *arg) {
+	return arg->a;
+}
+
+noinline int
+bpf_testmod_test_btf_type_tag_percpu_2(struct bpf_testmod_btf_type_tag_3 *arg) {
+	return arg->p->a;
+}
+
+noinline int bpf_testmod_loop_test(int n)
+{
+	/* Make sum volatile, so smart compilers, such as clang, will not
+	 * optimize the code by removing the loop.
+	 */
+	volatile int sum = 0;
+	int i;
+
+	/* the primary goal of this test is to test LBR. Create a lot of
+	 * branches in the function, so we can catch it easily.
+	 */
+	for (i = 0; i < n; i++)
+		sum += i;
+	return sum;
+}
+
+__weak noinline struct file *bpf_testmod_return_ptr(int arg)
+{
+	static struct file f = {};
+
+	switch (arg) {
+	case 1: return (void *)EINVAL;		/* user addr */
+	case 2: return (void *)0xcafe4a11;	/* user addr */
+	case 3: return (void *)-EINVAL;		/* canonical, but invalid */
+	case 4: return (void *)(1ull << 60);	/* non-canonical and invalid */
+	case 5: return (void *)~(1ull << 30);	/* trigger extable */
+	case 6: return &f;			/* valid addr */
+	case 7: return (void *)((long)&f | 1);	/* kernel tricks */
+#ifdef CONFIG_X86_64
+	case 8: return (void *)VSYSCALL_ADDR;   /* vsyscall page address */
+#endif
+	default: return NULL;
+	}
+}
+
+noinline int bpf_testmod_fentry_test1(int a)
+{
+	return a + 1;
+}
+
+noinline int bpf_testmod_fentry_test2(int a, u64 b)
+{
+	return a + b;
+}
+
+noinline int bpf_testmod_fentry_test3(char a, int b, u64 c)
+{
+	return a + b + c;
+}
+
+noinline int bpf_testmod_fentry_test7(u64 a, void *b, short c, int d,
+				      void *e, char f, int g)
+{
+	return a + (long)b + c + d + (long)e + f + g;
+}
+
+noinline int bpf_testmod_fentry_test11(u64 a, void *b, short c, int d,
+				       void *e, char f, int g,
+				       unsigned int h, long i, __u64 j,
+				       unsigned long k)
+{
+	return a + (long)b + c + d + (long)e + f + g + h + i + j + k;
+}
+
+noinline void bpf_testmod_stacktrace_test(void)
+{
+	/* used for stacktrace test as attach function */
+	asm volatile ("");
+}
+
+noinline void bpf_testmod_stacktrace_test_3(void)
+{
+	bpf_testmod_stacktrace_test();
+	asm volatile ("");
+}
+
+noinline void bpf_testmod_stacktrace_test_2(void)
+{
+	bpf_testmod_stacktrace_test_3();
+	asm volatile ("");
+}
+
+noinline void bpf_testmod_stacktrace_test_1(void)
+{
+	bpf_testmod_stacktrace_test_2();
+	asm volatile ("");
+}
+
+int bpf_testmod_fentry_ok;
+
+noinline ssize_t
+bpf_testmod_test_read(struct file *file, struct kobject *kobj,
+		      const struct bin_attribute *bin_attr,
+		      char *buf, loff_t off, size_t len)
+{
+	struct bpf_testmod_test_read_ctx ctx = {
+		.buf = buf,
+		.off = off,
+		.len = len,
+	};
+	struct bpf_testmod_struct_arg_1 struct_arg1 = {10}, struct_arg1_2 = {-1};
+	struct bpf_testmod_struct_arg_2 struct_arg2 = {2, 3};
+	struct bpf_testmod_struct_arg_3 *struct_arg3;
+	struct bpf_testmod_struct_arg_4 struct_arg4 = {21, 22};
+	struct bpf_testmod_struct_arg_5 struct_arg5 = {23, 24, 25, 26};
+	union bpf_testmod_union_arg_1 union_arg1 = { .arg = {1} };
+	union bpf_testmod_union_arg_2 union_arg2 = { .arg = {2, 3} };
+	int i = 1;
+
+	while (bpf_testmod_return_ptr(i))
+		i++;
+
+	(void)bpf_testmod_test_struct_arg_1(struct_arg2, 1, 4);
+	(void)bpf_testmod_test_struct_arg_2(1, struct_arg2, 4);
+	(void)bpf_testmod_test_struct_arg_3(1, 4, struct_arg2);
+	(void)bpf_testmod_test_struct_arg_4(struct_arg1, 1, 2, 3, struct_arg2);
+	(void)bpf_testmod_test_struct_arg_5();
+	(void)bpf_testmod_test_struct_arg_7(16, (void *)17, 18, 19,
+					    (void *)20, struct_arg4);
+	(void)bpf_testmod_test_struct_arg_8(16, (void *)17, 18, 19,
+					    (void *)20, struct_arg4, 23);
+	(void)bpf_testmod_test_struct_arg_9(16, (void *)17, 18, 19, (void *)20,
+					    21, 22, struct_arg5, 27);
+
+	(void)bpf_testmod_test_union_arg_1(union_arg1, 4, 5);
+	(void)bpf_testmod_test_union_arg_2(6, union_arg2);
+
+	(void)bpf_testmod_test_arg_ptr_to_struct(&struct_arg1_2);
+
+	(void)trace_bpf_testmod_test_raw_tp_null_tp(NULL);
+
+	bpf_testmod_test_struct_ops3();
+
+	struct_arg3 = kmalloc((sizeof(struct bpf_testmod_struct_arg_3) +
+				sizeof(int)), GFP_KERNEL);
+	if (struct_arg3 != NULL) {
+		struct_arg3->b[0] = 1;
+		(void)bpf_testmod_test_struct_arg_6(struct_arg3);
+		kfree(struct_arg3);
+	}
+
+	/* This is always true. Use the check to make sure the compiler
+	 * doesn't remove bpf_testmod_loop_test.
+	 */
+	if (bpf_testmod_loop_test(101) > 100)
+		trace_bpf_testmod_test_read(current, &ctx);
+
+	trace_bpf_testmod_test_nullable_bare_tp(NULL);
+
+	/* Magic number to enable writable tp */
+	if (len == 64) {
+		struct bpf_testmod_test_writable_ctx writable = {
+			.val = 1024,
+		};
+		trace_bpf_testmod_test_writable_bare_tp(&writable);
+		if (writable.early_ret)
+			return snprintf(buf, len, "%d\n", writable.val);
+	}
+
+	if (bpf_testmod_fentry_test1(1) != 2 ||
+	    bpf_testmod_fentry_test2(2, 3) != 5 ||
+	    bpf_testmod_fentry_test3(4, 5, 6) != 15 ||
+	    bpf_testmod_fentry_test7(16, (void *)17, 18, 19, (void *)20,
+			21, 22) != 133 ||
+	    bpf_testmod_fentry_test11(16, (void *)17, 18, 19, (void *)20,
+			21, 22, 23, 24, 25, 26) != 231)
+		goto out;
+
+	bpf_testmod_stacktrace_test_1();
+
+	bpf_testmod_fentry_ok = 1;
+out:
+	return -EIO; /* always fail */
+}
+EXPORT_SYMBOL(bpf_testmod_test_read);
+ALLOW_ERROR_INJECTION(bpf_testmod_test_read, ERRNO);
+
+noinline ssize_t
+bpf_testmod_test_write(struct file *file, struct kobject *kobj,
+		      const struct bin_attribute *bin_attr,
+		      char *buf, loff_t off, size_t len)
+{
+	struct bpf_testmod_test_write_ctx ctx = {
+		.buf = buf,
+		.off = off,
+		.len = len,
+	};
+
+	trace_bpf_testmod_test_write_bare_tp(current, &ctx);
+
+	return -EIO; /* always fail */
+}
+EXPORT_SYMBOL(bpf_testmod_test_write);
+ALLOW_ERROR_INJECTION(bpf_testmod_test_write, ERRNO);
+
+noinline int bpf_fentry_shadow_test(int a)
+{
+	return a + 2;
+}
+EXPORT_SYMBOL_GPL(bpf_fentry_shadow_test);
+
+__bpf_hook_end();
+
+static struct bin_attribute bin_attr_bpf_testmod_file __ro_after_init = {
+	.attr = { .name = "bpf_testmod", .mode = 0666, },
+	.read = bpf_testmod_test_read,
+	.write = bpf_testmod_test_write,
+};
+
+/* bpf_testmod_uprobe sysfs attribute is so far enabled for x86_64 only,
+ * please see test_uretprobe_regs_change test
+ */
+#ifdef __x86_64__
+
+static int
+uprobe_handler(struct uprobe_consumer *self, struct pt_regs *regs, __u64 *data)
+{
+	regs->cx = 0x87654321feebdaed;
+	return 0;
+}
+
+static int
+uprobe_ret_handler(struct uprobe_consumer *self, unsigned long func,
+		   struct pt_regs *regs, __u64 *data)
+
+{
+	regs->ax  = 0x12345678deadbeef;
+	regs->r11 = (u64) -1;
+	return 0;
+}
+
+struct testmod_uprobe {
+	struct path path;
+	struct uprobe *uprobe;
+	struct uprobe_consumer consumer;
+};
+
+static DEFINE_MUTEX(testmod_uprobe_mutex);
+
+static struct testmod_uprobe uprobe = {
+	.consumer.handler = uprobe_handler,
+	.consumer.ret_handler = uprobe_ret_handler,
+};
+
+static int testmod_register_uprobe(loff_t offset)
+{
+	int err = -EBUSY;
+
+	if (uprobe.uprobe)
+		return -EBUSY;
+
+	mutex_lock(&testmod_uprobe_mutex);
+
+	if (uprobe.uprobe)
+		goto out;
+
+	err = kern_path("/proc/self/exe", LOOKUP_FOLLOW, &uprobe.path);
+	if (err)
+		goto out;
+
+	uprobe.uprobe = uprobe_register(d_real_inode(uprobe.path.dentry),
+					offset, 0, &uprobe.consumer);
+	if (IS_ERR(uprobe.uprobe)) {
+		err = PTR_ERR(uprobe.uprobe);
+		path_put(&uprobe.path);
+		uprobe.uprobe = NULL;
+	}
+out:
+	mutex_unlock(&testmod_uprobe_mutex);
+	return err;
+}
+
+static void testmod_unregister_uprobe(void)
+{
+	mutex_lock(&testmod_uprobe_mutex);
+
+	if (uprobe.uprobe) {
+		uprobe_unregister_nosync(uprobe.uprobe, &uprobe.consumer);
+		uprobe_unregister_sync();
+		path_put(&uprobe.path);
+		uprobe.uprobe = NULL;
+	}
+
+	mutex_unlock(&testmod_uprobe_mutex);
+}
+
+static ssize_t
+bpf_testmod_uprobe_write(struct file *file, struct kobject *kobj,
+			 const struct bin_attribute *bin_attr,
+			 char *buf, loff_t off, size_t len)
+{
+	unsigned long offset = 0;
+	int err = 0;
+
+	if (kstrtoul(buf, 0, &offset))
+		return -EINVAL;
+
+	if (offset)
+		err = testmod_register_uprobe(offset);
+	else
+		testmod_unregister_uprobe();
+
+	return err ?: strlen(buf);
+}
+
+static struct bin_attribute bin_attr_bpf_testmod_uprobe_file __ro_after_init = {
+	.attr = { .name = "bpf_testmod_uprobe", .mode = 0666, },
+	.write = bpf_testmod_uprobe_write,
+};
+
+static int register_bpf_testmod_uprobe(void)
+{
+	return sysfs_create_bin_file(kernel_kobj, &bin_attr_bpf_testmod_uprobe_file);
+}
+
+static void unregister_bpf_testmod_uprobe(void)
+{
+	testmod_unregister_uprobe();
+	sysfs_remove_bin_file(kernel_kobj, &bin_attr_bpf_testmod_uprobe_file);
+}
+
+#else
+static int register_bpf_testmod_uprobe(void)
+{
+	return 0;
+}
+
+static void unregister_bpf_testmod_uprobe(void) { }
+#endif
+
+BTF_KFUNCS_START(bpf_testmod_common_kfunc_ids)
+BTF_ID_FLAGS(func, bpf_iter_testmod_seq_new, KF_ITER_NEW)
+BTF_ID_FLAGS(func, bpf_iter_testmod_seq_next, KF_ITER_NEXT | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_iter_testmod_seq_destroy, KF_ITER_DESTROY)
+BTF_ID_FLAGS(func, bpf_iter_testmod_seq_value)
+BTF_ID_FLAGS(func, bpf_kfunc_common_test)
+BTF_ID_FLAGS(func, bpf_kfunc_dynptr_test)
+BTF_ID_FLAGS(func, bpf_kfunc_nested_acquire_nonzero_offset_test, KF_ACQUIRE)
+BTF_ID_FLAGS(func, bpf_kfunc_nested_acquire_zero_offset_test, KF_ACQUIRE)
+BTF_ID_FLAGS(func, bpf_kfunc_nested_release_test, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_kfunc_trusted_vma_test, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_kfunc_trusted_task_test, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_kfunc_trusted_num_test, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_kfunc_rcu_task_test, KF_RCU)
+BTF_ID_FLAGS(func, bpf_kfunc_ret_rcu_test, KF_RET_NULL | KF_RCU_PROTECTED)
+BTF_ID_FLAGS(func, bpf_kfunc_ret_rcu_test_nostruct, KF_RET_NULL | KF_RCU_PROTECTED)
+BTF_ID_FLAGS(func, bpf_testmod_ctx_create, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_testmod_ctx_release, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_testmod_ops3_call_test_1)
+BTF_ID_FLAGS(func, bpf_testmod_ops3_call_test_2)
+BTF_KFUNCS_END(bpf_testmod_common_kfunc_ids)
+
+BTF_ID_LIST(bpf_testmod_dtor_ids)
+BTF_ID(struct, bpf_testmod_ctx)
+BTF_ID(func, bpf_testmod_ctx_release)
+
+static const struct btf_kfunc_id_set bpf_testmod_common_kfunc_set = {
+	.owner = THIS_MODULE,
+	.set   = &bpf_testmod_common_kfunc_ids,
+};
+
+__bpf_kfunc u64 bpf_kfunc_call_test1(struct sock *sk, u32 a, u64 b, u32 c, u64 d)
+{
+	return a + b + c + d;
+}
+
+__bpf_kfunc int bpf_kfunc_call_test2(struct sock *sk, u32 a, u32 b)
+{
+	return a + b;
+}
+
+__bpf_kfunc struct sock *bpf_kfunc_call_test3(struct sock *sk)
+{
+	return sk;
+}
+
+__bpf_kfunc long noinline bpf_kfunc_call_test4(signed char a, short b, int c, long d)
+{
+	/* Provoke the compiler to assume that the caller has sign-extended a,
+	 * b and c on platforms where this is required (e.g. s390x).
+	 */
+	return (long)a + (long)b + (long)c + d;
+}
+
+static struct prog_test_ref_kfunc prog_test_struct = {
+	.a = 42,
+	.b = 108,
+	.next = &prog_test_struct,
+	.cnt = REFCOUNT_INIT(1),
+};
+
+__bpf_kfunc struct prog_test_ref_kfunc *
+bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr)
+{
+	refcount_inc(&prog_test_struct.cnt);
+	return &prog_test_struct;
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_offset(struct prog_test_ref_kfunc *p)
+{
+	WARN_ON_ONCE(1);
+}
+
+__bpf_kfunc struct prog_test_member *
+bpf_kfunc_call_memb_acquire(void)
+{
+	WARN_ON_ONCE(1);
+	return NULL;
+}
+
+__bpf_kfunc void bpf_kfunc_call_memb1_release(struct prog_test_member1 *p)
+{
+	WARN_ON_ONCE(1);
+}
+
+static int *__bpf_kfunc_call_test_get_mem(struct prog_test_ref_kfunc *p, const int size)
+{
+	if (size > 2 * sizeof(int))
+		return NULL;
+
+	return (int *)p;
+}
+
+__bpf_kfunc int *bpf_kfunc_call_test_get_rdwr_mem(struct prog_test_ref_kfunc *p,
+						  const int rdwr_buf_size)
+{
+	return __bpf_kfunc_call_test_get_mem(p, rdwr_buf_size);
+}
+
+__bpf_kfunc int *bpf_kfunc_call_test_get_rdonly_mem(struct prog_test_ref_kfunc *p,
+						    const int rdonly_buf_size)
+{
+	return __bpf_kfunc_call_test_get_mem(p, rdonly_buf_size);
+}
+
+/* the next 2 ones can't be really used for testing expect to ensure
+ * that the verifier rejects the call.
+ * Acquire functions must return struct pointers, so these ones are
+ * failing.
+ */
+__bpf_kfunc int *bpf_kfunc_call_test_acq_rdonly_mem(struct prog_test_ref_kfunc *p,
+						    const int rdonly_buf_size)
+{
+	return __bpf_kfunc_call_test_get_mem(p, rdonly_buf_size);
+}
+
+__bpf_kfunc void bpf_kfunc_call_int_mem_release(int *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_mem_len_pass1(void *mem, int mem__sz)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_mem_len_fail2(u64 *mem, int len)
+{
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_ref(struct prog_test_ref_kfunc *p)
+{
+	/* p != NULL, but p->cnt could be 0 */
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_destructive(void)
+{
+}
+
+__bpf_kfunc static u32 bpf_kfunc_call_test_static_unused_arg(u32 arg, u32 unused)
+{
+	return arg;
+}
+
+__bpf_kfunc void bpf_kfunc_call_test_sleepable(void)
+{
+}
+
+__bpf_kfunc int bpf_kfunc_init_sock(struct init_sock_args *args)
+{
+	int proto;
+	int err;
+
+	mutex_lock(&sock_lock);
+
+	if (sock) {
+		pr_err("%s called without releasing old sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	switch (args->af) {
+	case AF_INET:
+	case AF_INET6:
+		proto = args->type == SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP;
+		break;
+	case AF_UNIX:
+		proto = PF_UNIX;
+		break;
+	default:
+		pr_err("invalid address family %d\n", args->af);
+		err = -EINVAL;
+		goto out;
+	}
+
+	err = sock_create_kern(current->nsproxy->net_ns, args->af, args->type,
+			       proto, &sock);
+
+	if (!err)
+		/* Set timeout for call to kernel_connect() to prevent it from hanging,
+		 * and consider the connection attempt failed if it returns
+		 * -EINPROGRESS.
+		 */
+		sock->sk->sk_sndtimeo = CONNECT_TIMEOUT_SEC * HZ;
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc void bpf_kfunc_close_sock(void)
+{
+	mutex_lock(&sock_lock);
+
+	if (sock) {
+		sock_release(sock);
+		sock = NULL;
+	}
+
+	mutex_unlock(&sock_lock);
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_connect(struct addr_args *args)
+{
+	int err;
+
+	if (args->addrlen > sizeof(args->addr))
+		return -EINVAL;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_connect(sock, (struct sockaddr_unsized *)&args->addr,
+			     args->addrlen, 0);
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_bind(struct addr_args *args)
+{
+	int err;
+
+	if (args->addrlen > sizeof(args->addr))
+		return -EINVAL;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_bind(sock, (struct sockaddr_unsized *)&args->addr, args->addrlen);
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_listen(void)
+{
+	int err;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_listen(sock, 128);
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_sendmsg(struct sendmsg_args *args)
+{
+	struct msghdr msg = {
+		.msg_name	= &args->addr.addr,
+		.msg_namelen	= args->addr.addrlen,
+	};
+	struct kvec iov;
+	int err;
+
+	if (args->addr.addrlen > sizeof(args->addr.addr) ||
+	    args->msglen > sizeof(args->msg))
+		return -EINVAL;
+
+	iov.iov_base = args->msg;
+	iov.iov_len  = args->msglen;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_sendmsg(sock, &msg, &iov, 1, args->msglen);
+	args->addr.addrlen = msg.msg_namelen;
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_sock_sendmsg(struct sendmsg_args *args)
+{
+	struct msghdr msg = {
+		.msg_name	= &args->addr.addr,
+		.msg_namelen	= args->addr.addrlen,
+	};
+	struct kvec iov;
+	int err;
+
+	if (args->addr.addrlen > sizeof(args->addr.addr) ||
+	    args->msglen > sizeof(args->msg))
+		return -EINVAL;
+
+	iov.iov_base = args->msg;
+	iov.iov_len  = args->msglen;
+
+	iov_iter_kvec(&msg.msg_iter, ITER_SOURCE, &iov, 1, args->msglen);
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = sock_sendmsg(sock, &msg);
+	args->addr.addrlen = msg.msg_namelen;
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_getsockname(struct addr_args *args)
+{
+	int err;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_getsockname(sock, (struct sockaddr *)&args->addr);
+	if (err < 0)
+		goto out;
+
+	args->addrlen = err;
+	err = 0;
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+__bpf_kfunc int bpf_kfunc_call_kernel_getpeername(struct addr_args *args)
+{
+	int err;
+
+	mutex_lock(&sock_lock);
+
+	if (!sock) {
+		pr_err("%s called without initializing sock", __func__);
+		err = -EPERM;
+		goto out;
+	}
+
+	err = kernel_getpeername(sock, (struct sockaddr *)&args->addr);
+	if (err < 0)
+		goto out;
+
+	args->addrlen = err;
+	err = 0;
+out:
+	mutex_unlock(&sock_lock);
+
+	return err;
+}
+
+static DEFINE_MUTEX(st_ops_mutex);
+static struct bpf_testmod_st_ops *st_ops;
+
+__bpf_kfunc int bpf_kfunc_st_ops_test_prologue(struct st_ops_args *args)
+{
+	int ret = -1;
+
+	mutex_lock(&st_ops_mutex);
+	if (st_ops && st_ops->test_prologue)
+		ret = st_ops->test_prologue(args);
+	mutex_unlock(&st_ops_mutex);
+
+	return ret;
+}
+
+__bpf_kfunc int bpf_kfunc_st_ops_test_epilogue(struct st_ops_args *args)
+{
+	int ret = -1;
+
+	mutex_lock(&st_ops_mutex);
+	if (st_ops && st_ops->test_epilogue)
+		ret = st_ops->test_epilogue(args);
+	mutex_unlock(&st_ops_mutex);
+
+	return ret;
+}
+
+__bpf_kfunc int bpf_kfunc_st_ops_test_pro_epilogue(struct st_ops_args *args)
+{
+	int ret = -1;
+
+	mutex_lock(&st_ops_mutex);
+	if (st_ops && st_ops->test_pro_epilogue)
+		ret = st_ops->test_pro_epilogue(args);
+	mutex_unlock(&st_ops_mutex);
+
+	return ret;
+}
+
+__bpf_kfunc int bpf_kfunc_st_ops_inc10(struct st_ops_args *args)
+{
+	args->a += 10;
+	return args->a;
+}
+
+__bpf_kfunc int bpf_kfunc_multi_st_ops_test_1(struct st_ops_args *args, u32 id);
+
+BTF_KFUNCS_START(bpf_testmod_check_kfunc_ids)
+BTF_ID_FLAGS(func, bpf_testmod_test_mod_kfunc)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test1)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test2)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test3)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test4)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_mem_len_pass1)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_mem_len_fail1)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_mem_len_fail2)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_acquire, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kfunc_call_memb_acquire, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kfunc_call_memb1_release, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_get_rdwr_mem, KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_get_rdonly_mem, KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_acq_rdonly_mem, KF_ACQUIRE | KF_RET_NULL)
+BTF_ID_FLAGS(func, bpf_kfunc_call_int_mem_release, KF_RELEASE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_pass_ctx)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_pass1)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_pass2)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_fail1)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_fail2)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_fail3)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_ref, KF_TRUSTED_ARGS | KF_RCU)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_destructive, KF_DESTRUCTIVE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_static_unused_arg)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_offset)
+BTF_ID_FLAGS(func, bpf_kfunc_call_test_sleepable, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_init_sock, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_close_sock, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_connect, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_bind, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_listen, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_sendmsg, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_sock_sendmsg, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_getsockname, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_call_kernel_getpeername, KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_st_ops_test_prologue, KF_TRUSTED_ARGS | KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_st_ops_test_epilogue, KF_TRUSTED_ARGS | KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_st_ops_test_pro_epilogue, KF_TRUSTED_ARGS | KF_SLEEPABLE)
+BTF_ID_FLAGS(func, bpf_kfunc_st_ops_inc10, KF_TRUSTED_ARGS)
+BTF_ID_FLAGS(func, bpf_kfunc_multi_st_ops_test_1, KF_TRUSTED_ARGS)
+BTF_KFUNCS_END(bpf_testmod_check_kfunc_ids)
+
+static int bpf_testmod_ops_init(struct btf *btf)
+{
+	return 0;
+}
+
+static bool bpf_testmod_ops_is_valid_access(int off, int size,
+					    enum bpf_access_type type,
+					    const struct bpf_prog *prog,
+					    struct bpf_insn_access_aux *info)
+{
+	return bpf_tracing_btf_ctx_access(off, size, type, prog, info);
+}
+
+static int bpf_testmod_ops_init_member(const struct btf_type *t,
+				       const struct btf_member *member,
+				       void *kdata, const void *udata)
+{
+	if (member->offset == offsetof(struct bpf_testmod_ops, data) * 8) {
+		/* For data fields, this function has to copy it and return
+		 * 1 to indicate that the data has been handled by the
+		 * struct_ops type, or the verifier will reject the map if
+		 * the value of the data field is not zero.
+		 */
+		((struct bpf_testmod_ops *)kdata)->data = ((struct bpf_testmod_ops *)udata)->data;
+		return 1;
+	}
+	return 0;
+}
+
+static const struct btf_kfunc_id_set bpf_testmod_kfunc_set = {
+	.owner = THIS_MODULE,
+	.set   = &bpf_testmod_check_kfunc_ids,
+};
+
+static const struct bpf_verifier_ops bpf_testmod_verifier_ops = {
+	.get_func_proto	 = bpf_base_func_proto,
+	.is_valid_access = bpf_testmod_ops_is_valid_access,
+};
+
+static const struct bpf_verifier_ops bpf_testmod_verifier_ops3 = {
+	.is_valid_access = bpf_testmod_ops_is_valid_access,
+};
+
+static int bpf_dummy_reg(void *kdata, struct bpf_link *link)
+{
+	struct bpf_testmod_ops *ops = kdata;
+
+	if (ops->test_1)
+		ops->test_1();
+	/* Some test cases (ex. struct_ops_maybe_null) may not have test_2
+	 * initialized, so we need to check for NULL.
+	 */
+	if (ops->test_2)
+		ops->test_2(4, ops->data);
+
+	return 0;
+}
+
+static void bpf_dummy_unreg(void *kdata, struct bpf_link *link)
+{
+}
+
+static int bpf_testmod_test_1(void)
+{
+	return 0;
+}
+
+static void bpf_testmod_test_2(int a, int b)
+{
+}
+
+static int bpf_testmod_tramp(int value)
+{
+	return 0;
+}
+
+static int bpf_testmod_ops__test_maybe_null(int dummy,
+					    struct task_struct *task__nullable)
+{
+	return 0;
+}
+
+static int bpf_testmod_ops__test_refcounted(int dummy,
+					    struct task_struct *task__ref)
+{
+	return 0;
+}
+
+static struct task_struct *
+bpf_testmod_ops__test_return_ref_kptr(int dummy, struct task_struct *task__ref,
+				      struct cgroup *cgrp)
+{
+	return NULL;
+}
+
+static struct bpf_testmod_ops __bpf_testmod_ops = {
+	.test_1 = bpf_testmod_test_1,
+	.test_2 = bpf_testmod_test_2,
+	.test_maybe_null = bpf_testmod_ops__test_maybe_null,
+	.test_refcounted = bpf_testmod_ops__test_refcounted,
+	.test_return_ref_kptr = bpf_testmod_ops__test_return_ref_kptr,
+};
+
+struct bpf_struct_ops bpf_bpf_testmod_ops = {
+	.verifier_ops = &bpf_testmod_verifier_ops,
+	.init = bpf_testmod_ops_init,
+	.init_member = bpf_testmod_ops_init_member,
+	.reg = bpf_dummy_reg,
+	.unreg = bpf_dummy_unreg,
+	.cfi_stubs = &__bpf_testmod_ops,
+	.name = "bpf_testmod_ops",
+	.owner = THIS_MODULE,
+};
+
+static int bpf_dummy_reg2(void *kdata, struct bpf_link *link)
+{
+	struct bpf_testmod_ops2 *ops = kdata;
+
+	ops->test_1();
+	return 0;
+}
+
+static struct bpf_testmod_ops2 __bpf_testmod_ops2 = {
+	.test_1 = bpf_testmod_test_1,
+};
+
+struct bpf_struct_ops bpf_testmod_ops2 = {
+	.verifier_ops = &bpf_testmod_verifier_ops,
+	.init = bpf_testmod_ops_init,
+	.init_member = bpf_testmod_ops_init_member,
+	.reg = bpf_dummy_reg2,
+	.unreg = bpf_dummy_unreg,
+	.cfi_stubs = &__bpf_testmod_ops2,
+	.name = "bpf_testmod_ops2",
+	.owner = THIS_MODULE,
+};
+
+static int st_ops3_reg(void *kdata, struct bpf_link *link)
+{
+	int err = 0;
+
+	mutex_lock(&st_ops_mutex);
+	if (st_ops3) {
+		pr_err("st_ops has already been registered\n");
+		err = -EEXIST;
+		goto unlock;
+	}
+	st_ops3 = kdata;
+
+unlock:
+	mutex_unlock(&st_ops_mutex);
+	return err;
+}
+
+static void st_ops3_unreg(void *kdata, struct bpf_link *link)
+{
+	mutex_lock(&st_ops_mutex);
+	st_ops3 = NULL;
+	mutex_unlock(&st_ops_mutex);
+}
+
+static void test_1_recursion_detected(struct bpf_prog *prog)
+{
+	struct bpf_prog_stats *stats;
+
+	stats = this_cpu_ptr(prog->stats);
+	printk("bpf_testmod: oh no, recursing into test_1, recursion_misses %llu",
+	       u64_stats_read(&stats->misses));
+}
+
+static int st_ops3_check_member(const struct btf_type *t,
+				const struct btf_member *member,
+				const struct bpf_prog *prog)
+{
+	u32 moff = __btf_member_bit_offset(t, member) / 8;
+
+	switch (moff) {
+	case offsetof(struct bpf_testmod_ops3, test_1):
+		prog->aux->priv_stack_requested = true;
+		prog->aux->recursion_detected = test_1_recursion_detected;
+		fallthrough;
+	default:
+		break;
+	}
+	return 0;
+}
+
+struct bpf_struct_ops bpf_testmod_ops3 = {
+	.verifier_ops = &bpf_testmod_verifier_ops3,
+	.init = bpf_testmod_ops_init,
+	.init_member = bpf_testmod_ops_init_member,
+	.reg = st_ops3_reg,
+	.unreg = st_ops3_unreg,
+	.check_member = st_ops3_check_member,
+	.cfi_stubs = &__bpf_testmod_ops3,
+	.name = "bpf_testmod_ops3",
+	.owner = THIS_MODULE,
+};
+
+static int bpf_test_mod_st_ops__test_prologue(struct st_ops_args *args)
+{
+	return 0;
+}
+
+static int bpf_test_mod_st_ops__test_epilogue(struct st_ops_args *args)
+{
+	return 0;
+}
+
+static int bpf_test_mod_st_ops__test_pro_epilogue(struct st_ops_args *args)
+{
+	return 0;
+}
+
+static int bpf_cgroup_from_id_id;
+static int bpf_cgroup_release_id;
+
+static int st_ops_gen_prologue_with_kfunc(struct bpf_insn *insn_buf, bool direct_write,
+					  const struct bpf_prog *prog)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	/* r8 = r1; // r8 will be "u64 *ctx".
+	 * r1 = 0;
+	 * r0 = bpf_cgroup_from_id(r1);
+	 * if r0 != 0 goto pc+5;
+	 * r6 = r8[0]; // r6 will be "struct st_ops *args".
+	 * r7 = r6->a;
+	 * r7 += 1000;
+	 * r6->a = r7;
+	 * goto pc+2;
+	 * r1 = r0;
+	 * bpf_cgroup_release(r1);
+	 * r1 = r8;
+	 */
+	*insn++ = BPF_MOV64_REG(BPF_REG_8, BPF_REG_1);
+	*insn++ = BPF_MOV64_IMM(BPF_REG_1, 0);
+	*insn++ = BPF_CALL_KFUNC(0, bpf_cgroup_from_id_id);
+	*insn++ = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 5);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_8, 0);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_6, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 1000);
+	*insn++ = BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_7, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_JMP_IMM(BPF_JA, 0, 0, 2);
+	*insn++ = BPF_MOV64_REG(BPF_REG_1, BPF_REG_0);
+	*insn++ = BPF_CALL_KFUNC(0, bpf_cgroup_release_id);
+	*insn++ = BPF_MOV64_REG(BPF_REG_1, BPF_REG_8);
+	*insn++ = prog->insnsi[0];
+
+	return insn - insn_buf;
+}
+
+static int st_ops_gen_epilogue_with_kfunc(struct bpf_insn *insn_buf, const struct bpf_prog *prog,
+					  s16 ctx_stack_off)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	/* r1 = 0;
+	 * r6 = 0;
+	 * r0 = bpf_cgroup_from_id(r1);
+	 * if r0 != 0 goto pc+6;
+	 * r1 = stack[ctx_stack_off]; // r1 will be "u64 *ctx"
+	 * r1 = r1[0]; // r1 will be "struct st_ops *args"
+	 * r6 = r1->a;
+	 * r6 += 10000;
+	 * r1->a = r6;
+	 * goto pc+2
+	 * r1 = r0;
+	 * bpf_cgroup_release(r1);
+	 * r0 = r6;
+	 * r0 *= 2;
+	 * BPF_EXIT;
+	 */
+	*insn++ = BPF_MOV64_IMM(BPF_REG_1, 0);
+	*insn++ = BPF_MOV64_IMM(BPF_REG_6, 0);
+	*insn++ = BPF_CALL_KFUNC(0, bpf_cgroup_from_id_id);
+	*insn++ = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 6);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_FP, ctx_stack_off);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 10000);
+	*insn++ = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_JMP_IMM(BPF_JA, 0, 0, 2);
+	*insn++ = BPF_MOV64_REG(BPF_REG_1, BPF_REG_0);
+	*insn++ = BPF_CALL_KFUNC(0, bpf_cgroup_release_id);
+	*insn++ = BPF_MOV64_REG(BPF_REG_0, BPF_REG_6);
+	*insn++ = BPF_ALU64_IMM(BPF_MUL, BPF_REG_0, 2);
+	*insn++ = BPF_EXIT_INSN();
+
+	return insn - insn_buf;
+}
+
+#define KFUNC_PRO_EPI_PREFIX "test_kfunc_"
+static int st_ops_gen_prologue(struct bpf_insn *insn_buf, bool direct_write,
+			       const struct bpf_prog *prog)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	if (strcmp(prog->aux->attach_func_name, "test_prologue") &&
+	    strcmp(prog->aux->attach_func_name, "test_pro_epilogue"))
+		return 0;
+
+	if (!strncmp(prog->aux->name, KFUNC_PRO_EPI_PREFIX, strlen(KFUNC_PRO_EPI_PREFIX)))
+		return st_ops_gen_prologue_with_kfunc(insn_buf, direct_write, prog);
+
+	/* r6 = r1[0]; // r6 will be "struct st_ops *args". r1 is "u64 *ctx".
+	 * r7 = r6->a;
+	 * r7 += 1000;
+	 * r6->a = r7;
+	 */
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_6, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 1000);
+	*insn++ = BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_7, offsetof(struct st_ops_args, a));
+	*insn++ = prog->insnsi[0];
+
+	return insn - insn_buf;
+}
+
+static int st_ops_gen_epilogue(struct bpf_insn *insn_buf, const struct bpf_prog *prog,
+			       s16 ctx_stack_off)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	if (strcmp(prog->aux->attach_func_name, "test_epilogue") &&
+	    strcmp(prog->aux->attach_func_name, "test_pro_epilogue"))
+		return 0;
+
+	if (!strncmp(prog->aux->name, KFUNC_PRO_EPI_PREFIX, strlen(KFUNC_PRO_EPI_PREFIX)))
+		return st_ops_gen_epilogue_with_kfunc(insn_buf, prog, ctx_stack_off);
+
+	/* r1 = stack[ctx_stack_off]; // r1 will be "u64 *ctx"
+	 * r1 = r1[0]; // r1 will be "struct st_ops *args"
+	 * r6 = r1->a;
+	 * r6 += 10000;
+	 * r1->a = r6;
+	 * r0 = r6;
+	 * r0 *= 2;
+	 * BPF_EXIT;
+	 */
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_FP, ctx_stack_off);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0);
+	*insn++ = BPF_LDX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 10000);
+	*insn++ = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, offsetof(struct st_ops_args, a));
+	*insn++ = BPF_MOV64_REG(BPF_REG_0, BPF_REG_6);
+	*insn++ = BPF_ALU64_IMM(BPF_MUL, BPF_REG_0, 2);
+	*insn++ = BPF_EXIT_INSN();
+
+	return insn - insn_buf;
+}
+
+static int st_ops_btf_struct_access(struct bpf_verifier_log *log,
+				    const struct bpf_reg_state *reg,
+				    int off, int size)
+{
+	if (off < 0 || off + size > sizeof(struct st_ops_args))
+		return -EACCES;
+	return 0;
+}
+
+static const struct bpf_verifier_ops st_ops_verifier_ops = {
+	.is_valid_access = bpf_testmod_ops_is_valid_access,
+	.btf_struct_access = st_ops_btf_struct_access,
+	.gen_prologue = st_ops_gen_prologue,
+	.gen_epilogue = st_ops_gen_epilogue,
+	.get_func_proto = bpf_base_func_proto,
+};
+
+static struct bpf_testmod_st_ops st_ops_cfi_stubs = {
+	.test_prologue = bpf_test_mod_st_ops__test_prologue,
+	.test_epilogue = bpf_test_mod_st_ops__test_epilogue,
+	.test_pro_epilogue = bpf_test_mod_st_ops__test_pro_epilogue,
+};
+
+static int st_ops_reg(void *kdata, struct bpf_link *link)
+{
+	int err = 0;
+
+	mutex_lock(&st_ops_mutex);
+	if (st_ops) {
+		pr_err("st_ops has already been registered\n");
+		err = -EEXIST;
+		goto unlock;
+	}
+	st_ops = kdata;
+
+unlock:
+	mutex_unlock(&st_ops_mutex);
+	return err;
+}
+
+static void st_ops_unreg(void *kdata, struct bpf_link *link)
+{
+	mutex_lock(&st_ops_mutex);
+	st_ops = NULL;
+	mutex_unlock(&st_ops_mutex);
+}
+
+static int st_ops_init(struct btf *btf)
+{
+	struct btf *kfunc_btf;
+
+	bpf_cgroup_from_id_id = bpf_find_btf_id("bpf_cgroup_from_id", BTF_KIND_FUNC, &kfunc_btf);
+	bpf_cgroup_release_id = bpf_find_btf_id("bpf_cgroup_release", BTF_KIND_FUNC, &kfunc_btf);
+	if (bpf_cgroup_from_id_id < 0 || bpf_cgroup_release_id < 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int st_ops_init_member(const struct btf_type *t,
+			      const struct btf_member *member,
+			      void *kdata, const void *udata)
+{
+	return 0;
+}
+
+static struct bpf_struct_ops testmod_st_ops = {
+	.verifier_ops = &st_ops_verifier_ops,
+	.init = st_ops_init,
+	.init_member = st_ops_init_member,
+	.reg = st_ops_reg,
+	.unreg = st_ops_unreg,
+	.cfi_stubs = &st_ops_cfi_stubs,
+	.name = "bpf_testmod_st_ops",
+	.owner = THIS_MODULE,
+};
+
+struct hlist_head multi_st_ops_list;
+static DEFINE_SPINLOCK(multi_st_ops_lock);
+
+static int multi_st_ops_init(struct btf *btf)
+{
+	spin_lock_init(&multi_st_ops_lock);
+	INIT_HLIST_HEAD(&multi_st_ops_list);
+
+	return 0;
+}
+
+static int multi_st_ops_init_member(const struct btf_type *t,
+				    const struct btf_member *member,
+				    void *kdata, const void *udata)
+{
+	return 0;
+}
+
+static struct bpf_testmod_multi_st_ops *multi_st_ops_find_nolock(u32 id)
+{
+	struct bpf_testmod_multi_st_ops *st_ops;
+
+	hlist_for_each_entry(st_ops, &multi_st_ops_list, node) {
+		if (st_ops->id == id)
+			return st_ops;
+	}
+
+	return NULL;
+}
+
+int bpf_kfunc_multi_st_ops_test_1(struct st_ops_args *args, u32 id)
+{
+	struct bpf_testmod_multi_st_ops *st_ops;
+	unsigned long flags;
+	int ret = -1;
+
+	spin_lock_irqsave(&multi_st_ops_lock, flags);
+	st_ops = multi_st_ops_find_nolock(id);
+	if (st_ops)
+		ret = st_ops->test_1(args);
+	spin_unlock_irqrestore(&multi_st_ops_lock, flags);
+
+	return ret;
+}
+
+static int multi_st_ops_reg(void *kdata, struct bpf_link *link)
+{
+	struct bpf_testmod_multi_st_ops *st_ops =
+		(struct bpf_testmod_multi_st_ops *)kdata;
+	unsigned long flags;
+	int err = 0;
+	u32 id;
+
+	if (!st_ops->test_1)
+		return -EINVAL;
+
+	id = bpf_struct_ops_id(kdata);
+
+	spin_lock_irqsave(&multi_st_ops_lock, flags);
+	if (multi_st_ops_find_nolock(id)) {
+		pr_err("multi_st_ops(id:%d) has already been registered\n", id);
+		err = -EEXIST;
+		goto unlock;
+	}
+
+	st_ops->id = id;
+	hlist_add_head(&st_ops->node, &multi_st_ops_list);
+unlock:
+	spin_unlock_irqrestore(&multi_st_ops_lock, flags);
+
+	return err;
+}
+
+static void multi_st_ops_unreg(void *kdata, struct bpf_link *link)
+{
+	struct bpf_testmod_multi_st_ops *st_ops;
+	unsigned long flags;
+	u32 id;
+
+	id = bpf_struct_ops_id(kdata);
+
+	spin_lock_irqsave(&multi_st_ops_lock, flags);
+	st_ops = multi_st_ops_find_nolock(id);
+	if (st_ops)
+		hlist_del(&st_ops->node);
+	spin_unlock_irqrestore(&multi_st_ops_lock, flags);
+}
+
+static int bpf_testmod_multi_st_ops__test_1(struct st_ops_args *args)
+{
+	return 0;
+}
+
+static struct bpf_testmod_multi_st_ops multi_st_ops_cfi_stubs = {
+	.test_1 = bpf_testmod_multi_st_ops__test_1,
+};
+
+struct bpf_struct_ops testmod_multi_st_ops = {
+	.verifier_ops = &bpf_testmod_verifier_ops,
+	.init = multi_st_ops_init,
+	.init_member = multi_st_ops_init_member,
+	.reg = multi_st_ops_reg,
+	.unreg = multi_st_ops_unreg,
+	.cfi_stubs = &multi_st_ops_cfi_stubs,
+	.name = "bpf_testmod_multi_st_ops",
+	.owner = THIS_MODULE,
+};
+
+extern int bpf_fentry_test1(int a);
+
+static int bpf_testmod_init(void)
+{
+	const struct btf_id_dtor_kfunc bpf_testmod_dtors[] = {
+		{
+			.btf_id		= bpf_testmod_dtor_ids[0],
+			.kfunc_btf_id	= bpf_testmod_dtor_ids[1]
+		},
+	};
+	void **tramp;
+	int ret;
+
+	ret = register_btf_kfunc_id_set(BPF_PROG_TYPE_UNSPEC, &bpf_testmod_common_kfunc_set);
+	ret = ret ?: register_btf_kfunc_id_set(BPF_PROG_TYPE_SCHED_CLS, &bpf_testmod_kfunc_set);
+	ret = ret ?: register_btf_kfunc_id_set(BPF_PROG_TYPE_TRACING, &bpf_testmod_kfunc_set);
+	ret = ret ?: register_btf_kfunc_id_set(BPF_PROG_TYPE_SYSCALL, &bpf_testmod_kfunc_set);
+	ret = ret ?: register_btf_kfunc_id_set(BPF_PROG_TYPE_STRUCT_OPS, &bpf_testmod_kfunc_set);
+	ret = ret ?: register_bpf_struct_ops(&bpf_bpf_testmod_ops, bpf_testmod_ops);
+	ret = ret ?: register_bpf_struct_ops(&bpf_testmod_ops2, bpf_testmod_ops2);
+	ret = ret ?: register_bpf_struct_ops(&bpf_testmod_ops3, bpf_testmod_ops3);
+	ret = ret ?: register_bpf_struct_ops(&testmod_st_ops, bpf_testmod_st_ops);
+	ret = ret ?: register_bpf_struct_ops(&testmod_multi_st_ops, bpf_testmod_multi_st_ops);
+	ret = ret ?: register_btf_id_dtor_kfuncs(bpf_testmod_dtors,
+						 ARRAY_SIZE(bpf_testmod_dtors),
+						 THIS_MODULE);
+	if (ret < 0)
+		return ret;
+	if (bpf_fentry_test1(0) < 0)
+		return -EINVAL;
+	sock = NULL;
+	mutex_init(&sock_lock);
+	ret = sysfs_create_bin_file(kernel_kobj, &bin_attr_bpf_testmod_file);
+	if (ret < 0)
+		return ret;
+	ret = register_bpf_testmod_uprobe();
+	if (ret < 0)
+		return ret;
+
+	/* Ensure nothing is between tramp_1..tramp_40 */
+	BUILD_BUG_ON(offsetof(struct bpf_testmod_ops, tramp_1) + 40 * sizeof(long) !=
+		     offsetofend(struct bpf_testmod_ops, tramp_40));
+	tramp = (void **)&__bpf_testmod_ops.tramp_1;
+	while (tramp <= (void **)&__bpf_testmod_ops.tramp_40)
+		*tramp++ = bpf_testmod_tramp;
+
+	return 0;
+}
+
+static void bpf_testmod_exit(void)
+{
+        /* Need to wait for all references to be dropped because
+         * bpf_kfunc_call_test_release() which currently resides in kernel can
+         * be called after bpf_testmod is unloaded. Once release function is
+         * moved into the module this wait can be removed.
+         */
+	while (refcount_read(&prog_test_struct.cnt) > 1)
+		msleep(20);
+
+	bpf_kfunc_close_sock();
+	sysfs_remove_bin_file(kernel_kobj, &bin_attr_bpf_testmod_file);
+	unregister_bpf_testmod_uprobe();
+}
+
+module_init(bpf_testmod_init);
+module_exit(bpf_testmod_exit);
+
+MODULE_AUTHOR("Andrii Nakryiko");
+MODULE_DESCRIPTION("BPF selftests module");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_testmod.h b/tools/testing/selftests/bpf/test_kmods/bpf_testmod.h
new file mode 100644
index 000000000000..f6e492f9d042
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_testmod.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+#ifndef _BPF_TESTMOD_H
+#define _BPF_TESTMOD_H
+
+#include <linux/types.h>
+
+struct task_struct;
+struct cgroup;
+
+struct bpf_testmod_test_read_ctx {
+	char *buf;
+	loff_t off;
+	size_t len;
+};
+
+struct bpf_testmod_test_write_ctx {
+	char *buf;
+	loff_t off;
+	size_t len;
+};
+
+struct bpf_testmod_test_writable_ctx {
+	bool early_ret;
+	int val;
+};
+
+/* BPF iter that returns *value* *n* times in a row */
+struct bpf_iter_testmod_seq {
+	s64 value;
+	int cnt;
+};
+
+struct bpf_testmod_ops {
+	int (*test_1)(void);
+	void (*test_2)(int a, int b);
+	/* Used to test nullable arguments. */
+	int (*test_maybe_null)(int dummy, struct task_struct *task);
+	int (*unsupported_ops)(void);
+	/* Used to test ref_acquired arguments. */
+	int (*test_refcounted)(int dummy, struct task_struct *task);
+	/* Used to test returning referenced kptr. */
+	struct task_struct *(*test_return_ref_kptr)(int dummy, struct task_struct *task,
+						    struct cgroup *cgrp);
+
+	/* The following fields are used to test shadow copies. */
+	char onebyte;
+	struct {
+		int a;
+		int b;
+	} unsupported;
+	int data;
+
+	/* The following pointers are used to test the maps having multiple
+	 * pages of trampolines.
+	 */
+	int (*tramp_1)(int value);
+	int (*tramp_2)(int value);
+	int (*tramp_3)(int value);
+	int (*tramp_4)(int value);
+	int (*tramp_5)(int value);
+	int (*tramp_6)(int value);
+	int (*tramp_7)(int value);
+	int (*tramp_8)(int value);
+	int (*tramp_9)(int value);
+	int (*tramp_10)(int value);
+	int (*tramp_11)(int value);
+	int (*tramp_12)(int value);
+	int (*tramp_13)(int value);
+	int (*tramp_14)(int value);
+	int (*tramp_15)(int value);
+	int (*tramp_16)(int value);
+	int (*tramp_17)(int value);
+	int (*tramp_18)(int value);
+	int (*tramp_19)(int value);
+	int (*tramp_20)(int value);
+	int (*tramp_21)(int value);
+	int (*tramp_22)(int value);
+	int (*tramp_23)(int value);
+	int (*tramp_24)(int value);
+	int (*tramp_25)(int value);
+	int (*tramp_26)(int value);
+	int (*tramp_27)(int value);
+	int (*tramp_28)(int value);
+	int (*tramp_29)(int value);
+	int (*tramp_30)(int value);
+	int (*tramp_31)(int value);
+	int (*tramp_32)(int value);
+	int (*tramp_33)(int value);
+	int (*tramp_34)(int value);
+	int (*tramp_35)(int value);
+	int (*tramp_36)(int value);
+	int (*tramp_37)(int value);
+	int (*tramp_38)(int value);
+	int (*tramp_39)(int value);
+	int (*tramp_40)(int value);
+};
+
+struct bpf_testmod_ops2 {
+	int (*test_1)(void);
+};
+
+struct bpf_testmod_ops3 {
+	int (*test_1)(void);
+	int (*test_2)(void);
+};
+
+struct st_ops_args {
+	u64 a;
+};
+
+struct bpf_testmod_st_ops {
+	int (*test_prologue)(struct st_ops_args *args);
+	int (*test_epilogue)(struct st_ops_args *args);
+	int (*test_pro_epilogue)(struct st_ops_args *args);
+	struct module *owner;
+};
+
+struct bpf_testmod_multi_st_ops {
+	int (*test_1)(struct st_ops_args *args);
+	struct hlist_node node;
+	int id;
+};
+
+#endif /* _BPF_TESTMOD_H */
diff --git a/tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h b/tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h
new file mode 100644
index 000000000000..4df6fa6a92cb
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_kmods/bpf_testmod_kfunc.h
@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _BPF_TESTMOD_KFUNC_H
+#define _BPF_TESTMOD_KFUNC_H
+
+#ifndef __KERNEL__
+#include <vmlinux.h>
+#include <bpf/bpf_helpers.h>
+#else
+#define __ksym
+struct prog_test_member1 {
+	int a;
+};
+
+struct prog_test_member {
+	struct prog_test_member1 m;
+	int c;
+};
+
+struct prog_test_ref_kfunc {
+	int a;
+	int b;
+	struct prog_test_member memb;
+	struct prog_test_ref_kfunc *next;
+	refcount_t cnt;
+};
+#endif
+
+struct prog_test_pass1 {
+	int x0;
+	struct {
+		int x1;
+		struct {
+			int x2;
+			struct {
+				int x3;
+			};
+		};
+	};
+};
+
+struct prog_test_pass2 {
+	int len;
+	short arr1[4];
+	struct {
+		char arr2[4];
+		unsigned long arr3[8];
+	} x;
+};
+
+struct prog_test_fail1 {
+	void *p;
+	int x;
+};
+
+struct prog_test_fail2 {
+	int x8;
+	struct prog_test_pass1 x;
+};
+
+struct prog_test_fail3 {
+	int len;
+	char arr1[2];
+	char arr2[];
+};
+
+struct init_sock_args {
+	int af;
+	int type;
+};
+
+struct addr_args {
+	char addr[sizeof(struct __kernel_sockaddr_storage)];
+	int addrlen;
+};
+
+struct sendmsg_args {
+	struct addr_args addr;
+	char msg[10];
+	int msglen;
+};
+
+struct bpf_testmod_ctx {
+	struct callback_head	rcu;
+	refcount_t		usage;
+};
+
+struct prog_test_ref_kfunc *
+bpf_kfunc_call_test_acquire(unsigned long *scalar_ptr) __ksym;
+void bpf_kfunc_call_test_release(struct prog_test_ref_kfunc *p) __ksym;
+void bpf_kfunc_call_test_ref(struct prog_test_ref_kfunc *p) __ksym;
+
+void bpf_kfunc_call_test_mem_len_pass1(void *mem, int len) __ksym;
+int *bpf_kfunc_call_test_get_rdwr_mem(struct prog_test_ref_kfunc *p, const int rdwr_buf_size) __ksym;
+int *bpf_kfunc_call_test_get_rdonly_mem(struct prog_test_ref_kfunc *p, const int rdonly_buf_size) __ksym;
+int *bpf_kfunc_call_test_acq_rdonly_mem(struct prog_test_ref_kfunc *p, const int rdonly_buf_size) __ksym;
+void bpf_kfunc_call_int_mem_release(int *p) __ksym;
+
+/* The bpf_kfunc_call_test_static_unused_arg is defined as static,
+ * but bpf program compilation needs to see it as global symbol.
+ */
+#ifndef __KERNEL__
+u32 bpf_kfunc_call_test_static_unused_arg(u32 arg, u32 unused) __ksym;
+#endif
+
+void bpf_testmod_test_mod_kfunc(int i) __ksym;
+
+__u64 bpf_kfunc_call_test1(struct sock *sk, __u32 a, __u64 b,
+				__u32 c, __u64 d) __ksym;
+int bpf_kfunc_call_test2(struct sock *sk, __u32 a, __u32 b) __ksym;
+struct sock *bpf_kfunc_call_test3(struct sock *sk) __ksym;
+long bpf_kfunc_call_test4(signed char a, short b, int c, long d) __ksym;
+
+void bpf_kfunc_call_test_pass_ctx(struct __sk_buff *skb) __ksym;
+void bpf_kfunc_call_test_pass1(struct prog_test_pass1 *p) __ksym;
+void bpf_kfunc_call_test_pass2(struct prog_test_pass2 *p) __ksym;
+void bpf_kfunc_call_test_mem_len_fail2(__u64 *mem, int len) __ksym;
+
+void bpf_kfunc_call_test_destructive(void) __ksym;
+void bpf_kfunc_call_test_sleepable(void) __ksym;
+
+void bpf_kfunc_call_test_offset(struct prog_test_ref_kfunc *p);
+struct prog_test_member *bpf_kfunc_call_memb_acquire(void);
+void bpf_kfunc_call_memb1_release(struct prog_test_member1 *p);
+void bpf_kfunc_call_test_fail1(struct prog_test_fail1 *p);
+void bpf_kfunc_call_test_fail2(struct prog_test_fail2 *p);
+void bpf_kfunc_call_test_fail3(struct prog_test_fail3 *p);
+void bpf_kfunc_call_test_mem_len_fail1(void *mem, int len);
+
+void bpf_kfunc_common_test(void) __ksym;
+
+int bpf_kfunc_init_sock(struct init_sock_args *args) __ksym;
+void bpf_kfunc_close_sock(void) __ksym;
+int bpf_kfunc_call_kernel_connect(struct addr_args *args) __ksym;
+int bpf_kfunc_call_kernel_bind(struct addr_args *args) __ksym;
+int bpf_kfunc_call_kernel_listen(void) __ksym;
+int bpf_kfunc_call_kernel_sendmsg(struct sendmsg_args *args) __ksym;
+int bpf_kfunc_call_sock_sendmsg(struct sendmsg_args *args) __ksym;
+int bpf_kfunc_call_kernel_getsockname(struct addr_args *args) __ksym;
+int bpf_kfunc_call_kernel_getpeername(struct addr_args *args) __ksym;
+
+void bpf_kfunc_dynptr_test(struct bpf_dynptr *ptr, struct bpf_dynptr *ptr__nullable) __ksym;
+
+struct bpf_testmod_ctx *bpf_testmod_ctx_create(int *err) __ksym;
+void bpf_testmod_ctx_release(struct bpf_testmod_ctx *ctx) __ksym;
+
+struct sk_buff *bpf_kfunc_nested_acquire_nonzero_offset_test(struct sk_buff_head *ptr) __ksym;
+struct sk_buff *bpf_kfunc_nested_acquire_zero_offset_test(struct sock_common *ptr) __ksym;
+void bpf_kfunc_nested_release_test(struct sk_buff *ptr) __ksym;
+
+struct st_ops_args;
+int bpf_kfunc_st_ops_test_prologue(struct st_ops_args *args) __ksym;
+int bpf_kfunc_st_ops_test_epilogue(struct st_ops_args *args) __ksym;
+int bpf_kfunc_st_ops_test_pro_epilogue(struct st_ops_args *args) __ksym;
+int bpf_kfunc_st_ops_inc10(struct st_ops_args *args) __ksym;
+
+void bpf_kfunc_trusted_vma_test(struct vm_area_struct *ptr) __ksym;
+void bpf_kfunc_trusted_task_test(struct task_struct *ptr) __ksym;
+void bpf_kfunc_trusted_num_test(int *ptr) __ksym;
+void bpf_kfunc_rcu_task_test(struct task_struct *ptr) __ksym;
+struct task_struct *bpf_kfunc_ret_rcu_test(void) __ksym;
+int *bpf_kfunc_ret_rcu_test_nostruct(int rdonly_buf_size) __ksym;
+
+int bpf_kfunc_multi_st_ops_test_1(struct st_ops_args *args, u32 id) __ksym;
+
+#endif /* _BPF_TESTMOD_KFUNC_H */
diff --git a/tools/testing/selftests/bpf/test_lirc_mode2.sh b/tools/testing/selftests/bpf/test_lirc_mode2.sh
new file mode 100755
index 000000000000..5252b91f48a1
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_lirc_mode2.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+ret=$ksft_skip
+
+msg="skip all tests:"
+if [ $UID != 0 ]; then
+	echo $msg please run this as root >&2
+	exit $ksft_skip
+fi
+
+GREEN='\033[0;92m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+modprobe rc-loopback
+
+for i in /sys/class/rc/rc*
+do
+	if grep -q DRV_NAME=rc-loopback $i/uevent
+	then
+		LIRCDEV=$(grep DEVNAME= $i/lirc*/uevent | sed sQDEVNAME=Q/dev/Q)
+		INPUTDEV=$(grep DEVNAME= $i/input*/event*/uevent | sed sQDEVNAME=Q/dev/Q)
+	fi
+done
+
+if [ -n "$LIRCDEV" ];
+then
+	TYPE=lirc_mode2
+	./test_lirc_mode2_user $LIRCDEV $INPUTDEV
+	ret=$?
+	if [ $ret -ne 0 ]; then
+		echo -e ${RED}"FAIL: $TYPE"${NC}
+	else
+		echo -e ${GREEN}"PASS: $TYPE"${NC}
+	fi
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/bpf/test_lirc_mode2_user.c b/tools/testing/selftests/bpf/test_lirc_mode2_user.c
new file mode 100644
index 000000000000..88e4aeab21b7
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_lirc_mode2_user.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+// test ir decoder
+//
+// Copyright (C) 2018 Sean Young <sean@mess.org>
+
+// A lirc chardev is a device representing a consumer IR (cir) device which
+// can receive infrared signals from remote control and/or transmit IR.
+//
+// IR is sent as a series of pulses and space somewhat like morse code. The
+// BPF program can decode this into scancodes so that rc-core can translate
+// this into input key codes using the rc keymap.
+//
+// This test works by sending IR over rc-loopback, so the IR is processed by
+// BPF and then decoded into scancodes. The lirc chardev must be the one
+// associated with rc-loopback, see the output of ir-keytable(1).
+//
+// The following CONFIG options must be enabled for the test to succeed:
+// CONFIG_RC_CORE=y
+// CONFIG_BPF_RAWIR_EVENT=y
+// CONFIG_RC_LOOPBACK=y
+
+// Steps:
+// 1. Open the /dev/lircN device for rc-loopback (given on command line)
+// 2. Attach bpf_lirc_mode2 program which decodes some IR.
+// 3. Send some IR to the same IR device; since it is loopback, this will
+//    end up in the bpf program
+// 4. bpf program should decode IR and report keycode
+// 5. We can read keycode from same /dev/lirc device
+
+#include <linux/bpf.h>
+#include <linux/input.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <poll.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "bpf_util.h"
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "testing_helpers.h"
+
+int main(int argc, char **argv)
+{
+	struct bpf_object *obj;
+	int ret, lircfd, progfd, inputfd;
+	int testir1 = 0x1dead;
+	int testir2 = 0x20101;
+	u32 prog_ids[10], prog_flags[10], prog_cnt;
+
+	if (argc != 3) {
+		printf("Usage: %s /dev/lircN /dev/input/eventM\n", argv[0]);
+		return 2;
+	}
+
+	ret = bpf_prog_test_load("test_lirc_mode2_kern.bpf.o",
+				 BPF_PROG_TYPE_LIRC_MODE2, &obj, &progfd);
+	if (ret) {
+		printf("Failed to load bpf program\n");
+		return 1;
+	}
+
+	lircfd = open(argv[1], O_RDWR | O_NONBLOCK);
+	if (lircfd == -1) {
+		printf("failed to open lirc device %s: %m\n", argv[1]);
+		return 1;
+	}
+
+	/* Let's try detach it before it was ever attached */
+	ret = bpf_prog_detach2(progfd, lircfd, BPF_LIRC_MODE2);
+	if (ret != -ENOENT) {
+		printf("bpf_prog_detach2 not attached should fail: %m\n");
+		return 1;
+	}
+
+	inputfd = open(argv[2], O_RDONLY | O_NONBLOCK);
+	if (inputfd == -1) {
+		printf("failed to open input device %s: %m\n", argv[1]);
+		return 1;
+	}
+
+	prog_cnt = 10;
+	ret = bpf_prog_query(lircfd, BPF_LIRC_MODE2, 0, prog_flags, prog_ids,
+			     &prog_cnt);
+	if (ret) {
+		printf("Failed to query bpf programs on lirc device: %m\n");
+		return 1;
+	}
+
+	if (prog_cnt != 0) {
+		printf("Expected nothing to be attached\n");
+		return 1;
+	}
+
+	ret = bpf_prog_attach(progfd, lircfd, BPF_LIRC_MODE2, 0);
+	if (ret) {
+		printf("Failed to attach bpf to lirc device: %m\n");
+		return 1;
+	}
+
+	/* Write raw IR */
+	ret = write(lircfd, &testir1, sizeof(testir1));
+	if (ret != sizeof(testir1)) {
+		printf("Failed to send test IR message: %m\n");
+		return 1;
+	}
+
+	struct pollfd pfd = { .fd = inputfd, .events = POLLIN };
+	struct input_event event;
+
+	for (;;) {
+		poll(&pfd, 1, 100);
+
+		/* Read decoded IR */
+		ret = read(inputfd, &event, sizeof(event));
+		if (ret != sizeof(event)) {
+			printf("Failed to read decoded IR: %m\n");
+			return 1;
+		}
+
+		if (event.type == EV_MSC && event.code == MSC_SCAN &&
+		    event.value == 0xdead) {
+			break;
+		}
+	}
+
+	/* Write raw IR */
+	ret = write(lircfd, &testir2, sizeof(testir2));
+	if (ret != sizeof(testir2)) {
+		printf("Failed to send test IR message: %m\n");
+		return 1;
+	}
+
+	for (;;) {
+		poll(&pfd, 1, 100);
+
+		/* Read decoded IR */
+		ret = read(inputfd, &event, sizeof(event));
+		if (ret != sizeof(event)) {
+			printf("Failed to read decoded IR: %m\n");
+			return 1;
+		}
+
+		if (event.type == EV_REL && event.code == REL_Y &&
+		    event.value == 1 ) {
+			break;
+		}
+	}
+
+	prog_cnt = 10;
+	ret = bpf_prog_query(lircfd, BPF_LIRC_MODE2, 0, prog_flags, prog_ids,
+			     &prog_cnt);
+	if (ret) {
+		printf("Failed to query bpf programs on lirc device: %m\n");
+		return 1;
+	}
+
+	if (prog_cnt != 1) {
+		printf("Expected one program to be attached\n");
+		return 1;
+	}
+
+	/* Let's try detaching it now it is actually attached */
+	ret = bpf_prog_detach2(progfd, lircfd, BPF_LIRC_MODE2);
+	if (ret) {
+		printf("bpf_prog_detach2: returned %m\n");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/test_loader.c b/tools/testing/selftests/bpf/test_loader.c
new file mode 100644
index 000000000000..338c035c3688
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_loader.c
@@ -0,0 +1,1406 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include <linux/capability.h>
+#include <stdlib.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "autoconf_helper.h"
+#include "disasm_helpers.h"
+#include "unpriv_helpers.h"
+#include "cap_helpers.h"
+#include "jit_disasm_helpers.h"
+
+#define str_has_pfx(str, pfx) \
+	(strncmp(str, pfx, __builtin_constant_p(pfx) ? sizeof(pfx) - 1 : strlen(pfx)) == 0)
+
+#define TEST_LOADER_LOG_BUF_SZ 2097152
+
+#define TEST_TAG_EXPECT_FAILURE "comment:test_expect_failure"
+#define TEST_TAG_EXPECT_SUCCESS "comment:test_expect_success"
+#define TEST_TAG_EXPECT_MSG_PFX "comment:test_expect_msg="
+#define TEST_TAG_EXPECT_NOT_MSG_PFX "comment:test_expect_not_msg="
+#define TEST_TAG_EXPECT_XLATED_PFX "comment:test_expect_xlated="
+#define TEST_TAG_EXPECT_FAILURE_UNPRIV "comment:test_expect_failure_unpriv"
+#define TEST_TAG_EXPECT_SUCCESS_UNPRIV "comment:test_expect_success_unpriv"
+#define TEST_TAG_EXPECT_MSG_PFX_UNPRIV "comment:test_expect_msg_unpriv="
+#define TEST_TAG_EXPECT_NOT_MSG_PFX_UNPRIV "comment:test_expect_not_msg_unpriv="
+#define TEST_TAG_EXPECT_XLATED_PFX_UNPRIV "comment:test_expect_xlated_unpriv="
+#define TEST_TAG_LOG_LEVEL_PFX "comment:test_log_level="
+#define TEST_TAG_PROG_FLAGS_PFX "comment:test_prog_flags="
+#define TEST_TAG_DESCRIPTION_PFX "comment:test_description="
+#define TEST_TAG_RETVAL_PFX "comment:test_retval="
+#define TEST_TAG_RETVAL_PFX_UNPRIV "comment:test_retval_unpriv="
+#define TEST_TAG_AUXILIARY "comment:test_auxiliary"
+#define TEST_TAG_AUXILIARY_UNPRIV "comment:test_auxiliary_unpriv"
+#define TEST_BTF_PATH "comment:test_btf_path="
+#define TEST_TAG_ARCH "comment:test_arch="
+#define TEST_TAG_JITED_PFX "comment:test_jited="
+#define TEST_TAG_JITED_PFX_UNPRIV "comment:test_jited_unpriv="
+#define TEST_TAG_CAPS_UNPRIV "comment:test_caps_unpriv="
+#define TEST_TAG_LOAD_MODE_PFX "comment:load_mode="
+#define TEST_TAG_EXPECT_STDERR_PFX "comment:test_expect_stderr="
+#define TEST_TAG_EXPECT_STDERR_PFX_UNPRIV "comment:test_expect_stderr_unpriv="
+#define TEST_TAG_EXPECT_STDOUT_PFX "comment:test_expect_stdout="
+#define TEST_TAG_EXPECT_STDOUT_PFX_UNPRIV "comment:test_expect_stdout_unpriv="
+#define TEST_TAG_LINEAR_SIZE "comment:test_linear_size="
+
+/* Warning: duplicated in bpf_misc.h */
+#define POINTER_VALUE	0xbadcafe
+#define TEST_DATA_LEN	64
+
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+#define EFFICIENT_UNALIGNED_ACCESS 1
+#else
+#define EFFICIENT_UNALIGNED_ACCESS 0
+#endif
+
+static int sysctl_unpriv_disabled = -1;
+
+enum mode {
+	PRIV = 1,
+	UNPRIV = 2
+};
+
+enum load_mode {
+	JITED		= 1 << 0,
+	NO_JITED	= 1 << 1,
+};
+
+struct test_subspec {
+	char *name;
+	bool expect_failure;
+	struct expected_msgs expect_msgs;
+	struct expected_msgs expect_xlated;
+	struct expected_msgs jited;
+	struct expected_msgs stderr;
+	struct expected_msgs stdout;
+	int retval;
+	bool execute;
+	__u64 caps;
+};
+
+struct test_spec {
+	const char *prog_name;
+	struct test_subspec priv;
+	struct test_subspec unpriv;
+	const char *btf_custom_path;
+	int log_level;
+	int prog_flags;
+	int mode_mask;
+	int arch_mask;
+	int load_mask;
+	int linear_sz;
+	bool auxiliary;
+	bool valid;
+};
+
+static int tester_init(struct test_loader *tester)
+{
+	if (!tester->log_buf) {
+		tester->log_buf_sz = TEST_LOADER_LOG_BUF_SZ;
+		tester->log_buf = calloc(tester->log_buf_sz, 1);
+		if (!ASSERT_OK_PTR(tester->log_buf, "tester_log_buf"))
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void test_loader_fini(struct test_loader *tester)
+{
+	if (!tester)
+		return;
+
+	free(tester->log_buf);
+}
+
+static void free_msgs(struct expected_msgs *msgs)
+{
+	int i;
+
+	for (i = 0; i < msgs->cnt; i++)
+		if (msgs->patterns[i].is_regex)
+			regfree(&msgs->patterns[i].regex);
+	free(msgs->patterns);
+	msgs->patterns = NULL;
+	msgs->cnt = 0;
+}
+
+static void free_test_spec(struct test_spec *spec)
+{
+	/* Deallocate expect_msgs arrays. */
+	free_msgs(&spec->priv.expect_msgs);
+	free_msgs(&spec->unpriv.expect_msgs);
+	free_msgs(&spec->priv.expect_xlated);
+	free_msgs(&spec->unpriv.expect_xlated);
+	free_msgs(&spec->priv.jited);
+	free_msgs(&spec->unpriv.jited);
+	free_msgs(&spec->unpriv.stderr);
+	free_msgs(&spec->priv.stderr);
+	free_msgs(&spec->unpriv.stdout);
+	free_msgs(&spec->priv.stdout);
+
+	free(spec->priv.name);
+	free(spec->unpriv.name);
+	spec->priv.name = NULL;
+	spec->unpriv.name = NULL;
+}
+
+/* Compiles regular expression matching pattern.
+ * Pattern has a special syntax:
+ *
+ *   pattern := (<verbatim text> | regex)*
+ *   regex := "{{" <posix extended regular expression> "}}"
+ *
+ * In other words, pattern is a verbatim text with inclusion
+ * of regular expressions enclosed in "{{" "}}" pairs.
+ * For example, pattern "foo{{[0-9]+}}" matches strings like
+ * "foo0", "foo007", etc.
+ */
+static int compile_regex(const char *pattern, regex_t *regex)
+{
+	char err_buf[256], buf[256] = {}, *ptr, *buf_end;
+	const char *original_pattern = pattern;
+	bool in_regex = false;
+	int err;
+
+	buf_end = buf + sizeof(buf);
+	ptr = buf;
+	while (*pattern && ptr < buf_end - 2) {
+		if (!in_regex && str_has_pfx(pattern, "{{")) {
+			in_regex = true;
+			pattern += 2;
+			continue;
+		}
+		if (in_regex && str_has_pfx(pattern, "}}")) {
+			in_regex = false;
+			pattern += 2;
+			continue;
+		}
+		if (in_regex) {
+			*ptr++ = *pattern++;
+			continue;
+		}
+		/* list of characters that need escaping for extended posix regex */
+		if (strchr(".[]\\()*+?{}|^$", *pattern)) {
+			*ptr++ = '\\';
+			*ptr++ = *pattern++;
+			continue;
+		}
+		*ptr++ = *pattern++;
+	}
+	if (*pattern) {
+		PRINT_FAIL("Regexp too long: '%s'\n", original_pattern);
+		return -EINVAL;
+	}
+	if (in_regex) {
+		PRINT_FAIL("Regexp has open '{{' but no closing '}}': '%s'\n", original_pattern);
+		return -EINVAL;
+	}
+	err = regcomp(regex, buf, REG_EXTENDED | REG_NEWLINE);
+	if (err != 0) {
+		regerror(err, regex, err_buf, sizeof(err_buf));
+		PRINT_FAIL("Regexp compilation error in '%s': '%s'\n", buf, err_buf);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int __push_msg(const char *pattern, bool on_next_line, bool negative,
+		      struct expected_msgs *msgs)
+{
+	struct expect_msg *msg;
+	void *tmp;
+	int err;
+
+	tmp = realloc(msgs->patterns,
+		      (1 + msgs->cnt) * sizeof(struct expect_msg));
+	if (!tmp) {
+		ASSERT_FAIL("failed to realloc memory for messages\n");
+		return -ENOMEM;
+	}
+	msgs->patterns = tmp;
+	msg = &msgs->patterns[msgs->cnt];
+	msg->on_next_line = on_next_line;
+	msg->substr = pattern;
+	msg->negative = negative;
+	msg->is_regex = false;
+	if (strstr(pattern, "{{")) {
+		err = compile_regex(pattern, &msg->regex);
+		if (err)
+			return err;
+		msg->is_regex = true;
+	}
+	msgs->cnt += 1;
+	return 0;
+}
+
+static int clone_msgs(struct expected_msgs *from, struct expected_msgs *to)
+{
+	struct expect_msg *msg;
+	int i, err;
+
+	for (i = 0; i < from->cnt; i++) {
+		msg = &from->patterns[i];
+		err = __push_msg(msg->substr, msg->on_next_line, msg->negative, to);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+static int push_msg(const char *substr, bool negative, struct expected_msgs *msgs)
+{
+	return __push_msg(substr, false, negative, msgs);
+}
+
+static int push_disasm_msg(const char *regex_str, bool *on_next_line, struct expected_msgs *msgs)
+{
+	int err;
+
+	if (strcmp(regex_str, "...") == 0) {
+		*on_next_line = false;
+		return 0;
+	}
+	err = __push_msg(regex_str, *on_next_line, false, msgs);
+	if (err)
+		return err;
+	*on_next_line = true;
+	return 0;
+}
+
+static int parse_int(const char *str, int *val, const char *name)
+{
+	char *end;
+	long tmp;
+
+	errno = 0;
+	if (str_has_pfx(str, "0x"))
+		tmp = strtol(str + 2, &end, 16);
+	else
+		tmp = strtol(str, &end, 10);
+	if (errno || end[0] != '\0') {
+		PRINT_FAIL("failed to parse %s from '%s'\n", name, str);
+		return -EINVAL;
+	}
+	*val = tmp;
+	return 0;
+}
+
+static int parse_caps(const char *str, __u64 *val, const char *name)
+{
+	int cap_flag = 0;
+	char *token = NULL, *saveptr = NULL;
+
+	char *str_cpy = strdup(str);
+	if (str_cpy == NULL) {
+		PRINT_FAIL("Memory allocation failed\n");
+		return -EINVAL;
+	}
+
+	token = strtok_r(str_cpy, "|", &saveptr);
+	while (token != NULL) {
+		errno = 0;
+		if (!strncmp("CAP_", token, sizeof("CAP_") - 1)) {
+			PRINT_FAIL("define %s constant in bpf_misc.h, failed to parse caps\n", token);
+			return -EINVAL;
+		}
+		cap_flag = strtol(token, NULL, 10);
+		if (!cap_flag || errno) {
+			PRINT_FAIL("failed to parse caps %s\n", name);
+			return -EINVAL;
+		}
+		*val |= (1ULL << cap_flag);
+		token = strtok_r(NULL, "|", &saveptr);
+	}
+
+	free(str_cpy);
+	return 0;
+}
+
+static int parse_retval(const char *str, int *val, const char *name)
+{
+	/*
+	 * INT_MIN is defined as (-INT_MAX -1), i.e. it doesn't expand to a
+	 * single int and cannot be parsed with strtol, so we handle it
+	 * separately here. In addition, it expands to different expressions in
+	 * different compilers so we use a prefixed _INT_MIN instead.
+	 */
+	if (strcmp(str, "_INT_MIN") == 0) {
+		*val = INT_MIN;
+		return 0;
+	}
+
+	return parse_int(str, val, name);
+}
+
+static void update_flags(int *flags, int flag, bool clear)
+{
+	if (clear)
+		*flags &= ~flag;
+	else
+		*flags |= flag;
+}
+
+/* Matches a string of form '<pfx>[^=]=.*' and returns it's suffix.
+ * Used to parse btf_decl_tag values.
+ * Such values require unique prefix because compiler does not add
+ * same __attribute__((btf_decl_tag(...))) twice.
+ * Test suite uses two-component tags for such cases:
+ *
+ *   <pfx> __COUNTER__ '='
+ *
+ * For example, two consecutive __msg tags '__msg("foo") __msg("foo")'
+ * would be encoded as:
+ *
+ *   [18] DECL_TAG 'comment:test_expect_msg=0=foo' type_id=15 component_idx=-1
+ *   [19] DECL_TAG 'comment:test_expect_msg=1=foo' type_id=15 component_idx=-1
+ *
+ * And the purpose of this function is to extract 'foo' from the above.
+ */
+static const char *skip_dynamic_pfx(const char *s, const char *pfx)
+{
+	const char *msg;
+
+	if (strncmp(s, pfx, strlen(pfx)) != 0)
+		return NULL;
+	msg = s + strlen(pfx);
+	msg = strchr(msg, '=');
+	if (!msg)
+		return NULL;
+	return msg + 1;
+}
+
+enum arch {
+	ARCH_UNKNOWN	= 0x1,
+	ARCH_X86_64	= 0x2,
+	ARCH_ARM64	= 0x4,
+	ARCH_RISCV64	= 0x8,
+	ARCH_S390X	= 0x10,
+};
+
+static int get_current_arch(void)
+{
+#if defined(__x86_64__)
+	return ARCH_X86_64;
+#elif defined(__aarch64__)
+	return ARCH_ARM64;
+#elif defined(__riscv) && __riscv_xlen == 64
+	return ARCH_RISCV64;
+#elif defined(__s390x__)
+	return ARCH_S390X;
+#endif
+	return ARCH_UNKNOWN;
+}
+
+/* Uses btf_decl_tag attributes to describe the expected test
+ * behavior, see bpf_misc.h for detailed description of each attribute
+ * and attribute combinations.
+ */
+static int parse_test_spec(struct test_loader *tester,
+			   struct bpf_object *obj,
+			   struct bpf_program *prog,
+			   struct test_spec *spec)
+{
+	const char *description = NULL;
+	bool has_unpriv_result = false;
+	bool has_unpriv_retval = false;
+	bool unpriv_xlated_on_next_line = true;
+	bool xlated_on_next_line = true;
+	bool unpriv_jit_on_next_line;
+	bool jit_on_next_line;
+	bool stderr_on_next_line = true;
+	bool unpriv_stderr_on_next_line = true;
+	bool stdout_on_next_line = true;
+	bool unpriv_stdout_on_next_line = true;
+	bool collect_jit = false;
+	int func_id, i, err = 0;
+	u32 arch_mask = 0;
+	u32 load_mask = 0;
+	struct btf *btf;
+	enum arch arch;
+
+	memset(spec, 0, sizeof(*spec));
+
+	spec->prog_name = bpf_program__name(prog);
+	spec->prog_flags = testing_prog_flags();
+
+	btf = bpf_object__btf(obj);
+	if (!btf) {
+		ASSERT_FAIL("BPF object has no BTF");
+		return -EINVAL;
+	}
+
+	func_id = btf__find_by_name_kind(btf, spec->prog_name, BTF_KIND_FUNC);
+	if (func_id < 0) {
+		ASSERT_FAIL("failed to find FUNC BTF type for '%s'", spec->prog_name);
+		return -EINVAL;
+	}
+
+	for (i = 1; i < btf__type_cnt(btf); i++) {
+		const char *s, *val, *msg;
+		const struct btf_type *t;
+		bool clear;
+		int flags;
+
+		t = btf__type_by_id(btf, i);
+		if (!btf_is_decl_tag(t))
+			continue;
+
+		if (t->type != func_id || btf_decl_tag(t)->component_idx != -1)
+			continue;
+
+		s = btf__str_by_offset(btf, t->name_off);
+		if (str_has_pfx(s, TEST_TAG_DESCRIPTION_PFX)) {
+			description = s + sizeof(TEST_TAG_DESCRIPTION_PFX) - 1;
+		} else if (strcmp(s, TEST_TAG_EXPECT_FAILURE) == 0) {
+			spec->priv.expect_failure = true;
+			spec->mode_mask |= PRIV;
+		} else if (strcmp(s, TEST_TAG_EXPECT_SUCCESS) == 0) {
+			spec->priv.expect_failure = false;
+			spec->mode_mask |= PRIV;
+		} else if (strcmp(s, TEST_TAG_EXPECT_FAILURE_UNPRIV) == 0) {
+			spec->unpriv.expect_failure = true;
+			spec->mode_mask |= UNPRIV;
+			has_unpriv_result = true;
+		} else if (strcmp(s, TEST_TAG_EXPECT_SUCCESS_UNPRIV) == 0) {
+			spec->unpriv.expect_failure = false;
+			spec->mode_mask |= UNPRIV;
+			has_unpriv_result = true;
+		} else if (strcmp(s, TEST_TAG_AUXILIARY) == 0) {
+			spec->auxiliary = true;
+			spec->mode_mask |= PRIV;
+		} else if (strcmp(s, TEST_TAG_AUXILIARY_UNPRIV) == 0) {
+			spec->auxiliary = true;
+			spec->mode_mask |= UNPRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_MSG_PFX))) {
+			err = push_msg(msg, false, &spec->priv.expect_msgs);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= PRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX))) {
+			err = push_msg(msg, true, &spec->priv.expect_msgs);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= PRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_MSG_PFX_UNPRIV))) {
+			err = push_msg(msg, false, &spec->unpriv.expect_msgs);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= UNPRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX_UNPRIV))) {
+			err = push_msg(msg, true, &spec->unpriv.expect_msgs);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= UNPRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_JITED_PFX))) {
+			if (arch_mask == 0) {
+				PRINT_FAIL("__jited used before __arch_*");
+				goto cleanup;
+			}
+			if (collect_jit) {
+				err = push_disasm_msg(msg, &jit_on_next_line,
+						      &spec->priv.jited);
+				if (err)
+					goto cleanup;
+				spec->mode_mask |= PRIV;
+			}
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_JITED_PFX_UNPRIV))) {
+			if (arch_mask == 0) {
+				PRINT_FAIL("__unpriv_jited used before __arch_*");
+				goto cleanup;
+			}
+			if (collect_jit) {
+				err = push_disasm_msg(msg, &unpriv_jit_on_next_line,
+						      &spec->unpriv.jited);
+				if (err)
+					goto cleanup;
+				spec->mode_mask |= UNPRIV;
+			}
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_XLATED_PFX))) {
+			err = push_disasm_msg(msg, &xlated_on_next_line,
+					      &spec->priv.expect_xlated);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= PRIV;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_XLATED_PFX_UNPRIV))) {
+			err = push_disasm_msg(msg, &unpriv_xlated_on_next_line,
+					      &spec->unpriv.expect_xlated);
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= UNPRIV;
+		} else if (str_has_pfx(s, TEST_TAG_RETVAL_PFX)) {
+			val = s + sizeof(TEST_TAG_RETVAL_PFX) - 1;
+			err = parse_retval(val, &spec->priv.retval, "__retval");
+			if (err)
+				goto cleanup;
+			spec->priv.execute = true;
+			spec->mode_mask |= PRIV;
+		} else if (str_has_pfx(s, TEST_TAG_RETVAL_PFX_UNPRIV)) {
+			val = s + sizeof(TEST_TAG_RETVAL_PFX_UNPRIV) - 1;
+			err = parse_retval(val, &spec->unpriv.retval, "__retval_unpriv");
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= UNPRIV;
+			spec->unpriv.execute = true;
+			has_unpriv_retval = true;
+		} else if (str_has_pfx(s, TEST_TAG_LOG_LEVEL_PFX)) {
+			val = s + sizeof(TEST_TAG_LOG_LEVEL_PFX) - 1;
+			err = parse_int(val, &spec->log_level, "test log level");
+			if (err)
+				goto cleanup;
+		} else if (str_has_pfx(s, TEST_TAG_PROG_FLAGS_PFX)) {
+			val = s + sizeof(TEST_TAG_PROG_FLAGS_PFX) - 1;
+
+			clear = val[0] == '!';
+			if (clear)
+				val++;
+
+			if (strcmp(val, "BPF_F_STRICT_ALIGNMENT") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_STRICT_ALIGNMENT, clear);
+			} else if (strcmp(val, "BPF_F_ANY_ALIGNMENT") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_ANY_ALIGNMENT, clear);
+			} else if (strcmp(val, "BPF_F_TEST_RND_HI32") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_TEST_RND_HI32, clear);
+			} else if (strcmp(val, "BPF_F_TEST_STATE_FREQ") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_TEST_STATE_FREQ, clear);
+			} else if (strcmp(val, "BPF_F_SLEEPABLE") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_SLEEPABLE, clear);
+			} else if (strcmp(val, "BPF_F_XDP_HAS_FRAGS") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_XDP_HAS_FRAGS, clear);
+			} else if (strcmp(val, "BPF_F_TEST_REG_INVARIANTS") == 0) {
+				update_flags(&spec->prog_flags, BPF_F_TEST_REG_INVARIANTS, clear);
+			} else /* assume numeric value */ {
+				err = parse_int(val, &flags, "test prog flags");
+				if (err)
+					goto cleanup;
+				update_flags(&spec->prog_flags, flags, clear);
+			}
+		} else if (str_has_pfx(s, TEST_TAG_ARCH)) {
+			val = s + sizeof(TEST_TAG_ARCH) - 1;
+			if (strcmp(val, "X86_64") == 0) {
+				arch = ARCH_X86_64;
+			} else if (strcmp(val, "ARM64") == 0) {
+				arch = ARCH_ARM64;
+			} else if (strcmp(val, "RISCV64") == 0) {
+				arch = ARCH_RISCV64;
+			} else if (strcmp(val, "s390x") == 0) {
+				arch = ARCH_S390X;
+			} else {
+				PRINT_FAIL("bad arch spec: '%s'\n", val);
+				err = -EINVAL;
+				goto cleanup;
+			}
+			arch_mask |= arch;
+			collect_jit = get_current_arch() == arch;
+			unpriv_jit_on_next_line = true;
+			jit_on_next_line = true;
+		} else if (str_has_pfx(s, TEST_BTF_PATH)) {
+			spec->btf_custom_path = s + sizeof(TEST_BTF_PATH) - 1;
+		} else if (str_has_pfx(s, TEST_TAG_CAPS_UNPRIV)) {
+			val = s + sizeof(TEST_TAG_CAPS_UNPRIV) - 1;
+			err = parse_caps(val, &spec->unpriv.caps, "test caps");
+			if (err)
+				goto cleanup;
+			spec->mode_mask |= UNPRIV;
+		} else if (str_has_pfx(s, TEST_TAG_LOAD_MODE_PFX)) {
+			val = s + sizeof(TEST_TAG_LOAD_MODE_PFX) - 1;
+			if (strcmp(val, "jited") == 0) {
+				load_mask = JITED;
+			} else if (strcmp(val, "no_jited") == 0) {
+				load_mask = NO_JITED;
+			} else {
+				PRINT_FAIL("bad load spec: '%s'", val);
+				err = -EINVAL;
+				goto cleanup;
+			}
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_STDERR_PFX))) {
+			err = push_disasm_msg(msg, &stderr_on_next_line,
+					      &spec->priv.stderr);
+			if (err)
+				goto cleanup;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_STDERR_PFX_UNPRIV))) {
+			err = push_disasm_msg(msg, &unpriv_stderr_on_next_line,
+					      &spec->unpriv.stderr);
+			if (err)
+				goto cleanup;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_STDOUT_PFX))) {
+			err = push_disasm_msg(msg, &stdout_on_next_line,
+					      &spec->priv.stdout);
+			if (err)
+				goto cleanup;
+		} else if ((msg = skip_dynamic_pfx(s, TEST_TAG_EXPECT_STDOUT_PFX_UNPRIV))) {
+			err = push_disasm_msg(msg, &unpriv_stdout_on_next_line,
+					      &spec->unpriv.stdout);
+			if (err)
+				goto cleanup;
+		} else if (str_has_pfx(s, TEST_TAG_LINEAR_SIZE)) {
+			switch (bpf_program__type(prog)) {
+			case BPF_PROG_TYPE_SCHED_ACT:
+			case BPF_PROG_TYPE_SCHED_CLS:
+			case BPF_PROG_TYPE_CGROUP_SKB:
+				val = s + sizeof(TEST_TAG_LINEAR_SIZE) - 1;
+				err = parse_int(val, &spec->linear_sz, "test linear size");
+				if (err)
+					goto cleanup;
+				break;
+			default:
+				PRINT_FAIL("__linear_size for unsupported program type");
+				err = -EINVAL;
+				goto cleanup;
+			}
+		}
+	}
+
+	spec->arch_mask = arch_mask ?: -1;
+	spec->load_mask = load_mask ?: (JITED | NO_JITED);
+
+	if (spec->mode_mask == 0)
+		spec->mode_mask = PRIV;
+
+	if (!description)
+		description = spec->prog_name;
+
+	if (spec->mode_mask & PRIV) {
+		spec->priv.name = strdup(description);
+		if (!spec->priv.name) {
+			PRINT_FAIL("failed to allocate memory for priv.name\n");
+			err = -ENOMEM;
+			goto cleanup;
+		}
+	}
+
+	if (spec->mode_mask & UNPRIV) {
+		int descr_len = strlen(description);
+		const char *suffix = " @unpriv";
+		char *name;
+
+		name = malloc(descr_len + strlen(suffix) + 1);
+		if (!name) {
+			PRINT_FAIL("failed to allocate memory for unpriv.name\n");
+			err = -ENOMEM;
+			goto cleanup;
+		}
+
+		strcpy(name, description);
+		strcpy(&name[descr_len], suffix);
+		spec->unpriv.name = name;
+	}
+
+	if (spec->mode_mask & (PRIV | UNPRIV)) {
+		if (!has_unpriv_result)
+			spec->unpriv.expect_failure = spec->priv.expect_failure;
+
+		if (!has_unpriv_retval) {
+			spec->unpriv.retval = spec->priv.retval;
+			spec->unpriv.execute = spec->priv.execute;
+		}
+
+		if (spec->unpriv.expect_msgs.cnt == 0)
+			clone_msgs(&spec->priv.expect_msgs, &spec->unpriv.expect_msgs);
+		if (spec->unpriv.expect_xlated.cnt == 0)
+			clone_msgs(&spec->priv.expect_xlated, &spec->unpriv.expect_xlated);
+		if (spec->unpriv.jited.cnt == 0)
+			clone_msgs(&spec->priv.jited, &spec->unpriv.jited);
+		if (spec->unpriv.stderr.cnt == 0)
+			clone_msgs(&spec->priv.stderr, &spec->unpriv.stderr);
+		if (spec->unpriv.stdout.cnt == 0)
+			clone_msgs(&spec->priv.stdout, &spec->unpriv.stdout);
+	}
+
+	spec->valid = true;
+
+	return 0;
+
+cleanup:
+	free_test_spec(spec);
+	return err;
+}
+
+static void prepare_case(struct test_loader *tester,
+			 struct test_spec *spec,
+			 struct bpf_object *obj,
+			 struct bpf_program *prog)
+{
+	int min_log_level = 0, prog_flags;
+
+	if (env.verbosity > VERBOSE_NONE)
+		min_log_level = 1;
+	if (env.verbosity > VERBOSE_VERY)
+		min_log_level = 2;
+
+	bpf_program__set_log_buf(prog, tester->log_buf, tester->log_buf_sz);
+
+	/* Make sure we set at least minimal log level, unless test requires
+	 * even higher level already. Make sure to preserve independent log
+	 * level 4 (verifier stats), though.
+	 */
+	if ((spec->log_level & 3) < min_log_level)
+		bpf_program__set_log_level(prog, (spec->log_level & 4) | min_log_level);
+	else
+		bpf_program__set_log_level(prog, spec->log_level);
+
+	prog_flags = bpf_program__flags(prog);
+	bpf_program__set_flags(prog, prog_flags | spec->prog_flags);
+
+	tester->log_buf[0] = '\0';
+}
+
+static void emit_verifier_log(const char *log_buf, bool force)
+{
+	if (!force && env.verbosity == VERBOSE_NONE)
+		return;
+	fprintf(stdout, "VERIFIER LOG:\n=============\n%s=============\n", log_buf);
+}
+
+static void emit_xlated(const char *xlated, bool force)
+{
+	if (!force && env.verbosity == VERBOSE_NONE)
+		return;
+	fprintf(stdout, "XLATED:\n=============\n%s=============\n", xlated);
+}
+
+static void emit_jited(const char *jited, bool force)
+{
+	if (!force && env.verbosity == VERBOSE_NONE)
+		return;
+	fprintf(stdout, "JITED:\n=============\n%s=============\n", jited);
+}
+
+static void emit_stderr(const char *stderr, bool force)
+{
+	if (!force && env.verbosity == VERBOSE_NONE)
+		return;
+	fprintf(stdout, "STDERR:\n=============\n%s=============\n", stderr);
+}
+
+static void emit_stdout(const char *bpf_stdout, bool force)
+{
+	if (!force && env.verbosity == VERBOSE_NONE)
+		return;
+	fprintf(stdout, "STDOUT:\n=============\n%s=============\n", bpf_stdout);
+}
+
+static const char *match_msg(struct expect_msg *msg, const char **log)
+{
+	const char *match = NULL;
+	regmatch_t reg_match[1];
+	int err;
+
+	if (!msg->is_regex) {
+		match = strstr(*log, msg->substr);
+		if (match)
+			*log = match + strlen(msg->substr);
+	} else {
+		err = regexec(&msg->regex, *log, 1, reg_match, 0);
+		if (err == 0) {
+			match = *log + reg_match[0].rm_so;
+			*log += reg_match[0].rm_eo;
+		}
+	}
+	return match;
+}
+
+static int count_lines(const char *start, const char *end)
+{
+	const char *tmp;
+	int n = 0;
+
+	for (tmp = start; tmp < end; ++tmp)
+		if (*tmp == '\n')
+			n++;
+	return n;
+}
+
+struct match {
+	const char *start;
+	const char *end;
+	int line;
+};
+
+/*
+ * Positive messages are matched sequentially, each next message
+ * is looked for starting from the end of a previous matched one.
+ */
+static void match_positive_msgs(const char *log, struct expected_msgs *msgs, struct match *matches)
+{
+	const char *prev_match;
+	int i, line;
+
+	prev_match = log;
+	line = 0;
+	for (i = 0; i < msgs->cnt; i++) {
+		struct expect_msg *msg = &msgs->patterns[i];
+		const char *match = NULL;
+
+		if (msg->negative)
+			continue;
+
+		match = match_msg(msg, &log);
+		if (match) {
+			line += count_lines(prev_match, match);
+			matches[i].start = match;
+			matches[i].end   = log;
+			matches[i].line  = line;
+			prev_match = match;
+		}
+	}
+}
+
+/*
+ * Each negative messages N located between positive messages P1 and P2
+ * is matched in the span P1.end .. P2.start. Consequently, negative messages
+ * are unordered within the span.
+ */
+static void match_negative_msgs(const char *log, struct expected_msgs *msgs, struct match *matches)
+{
+	const char *start = log, *end, *next, *match;
+	const char *log_end = log + strlen(log);
+	int i, j, next_positive;
+
+	for (i = 0; i < msgs->cnt; i++) {
+		struct expect_msg *msg = &msgs->patterns[i];
+
+		/* positive message bumps span start */
+		if (!msg->negative) {
+			start = matches[i].end ?: start;
+			continue;
+		}
+
+		/* count stride of negative patterns and adjust span end */
+		end = log_end;
+		for (next_positive = i + 1; next_positive < msgs->cnt; next_positive++) {
+			if (!msgs->patterns[next_positive].negative) {
+				end = matches[next_positive].start;
+				break;
+			}
+		}
+
+		/* try matching negative messages within identified span */
+		for (j = i; j < next_positive; j++) {
+			next = start;
+			match = match_msg(msg, &next);
+			if (match && next <= end) {
+				matches[j].start = match;
+				matches[j].end = next;
+			}
+		}
+
+		/* -1 to account for i++ */
+		i = next_positive - 1;
+	}
+}
+
+void validate_msgs(const char *log_buf, struct expected_msgs *msgs,
+		   void (*emit_fn)(const char *buf, bool force))
+{
+	struct match matches[msgs->cnt];
+	struct match *prev_match = NULL;
+	int i, j;
+
+	memset(matches, 0, sizeof(*matches) * msgs->cnt);
+	match_positive_msgs(log_buf, msgs, matches);
+	match_negative_msgs(log_buf, msgs, matches);
+
+	for (i = 0; i < msgs->cnt; i++) {
+		struct expect_msg *msg = &msgs->patterns[i];
+		struct match *match = &matches[i];
+		const char *pat_status;
+		bool unexpected;
+		bool wrong_line;
+		bool no_match;
+
+		no_match   = !msg->negative && !match->start;
+		wrong_line = !msg->negative &&
+			     msg->on_next_line &&
+			     prev_match && prev_match->line + 1 != match->line;
+		unexpected = msg->negative && match->start;
+		if (no_match || wrong_line || unexpected) {
+			PRINT_FAIL("expect_msg\n");
+			if (env.verbosity == VERBOSE_NONE)
+				emit_fn(log_buf, true /*force*/);
+			for (j = 0; j <= i; j++) {
+				msg = &msgs->patterns[j];
+				if (j < i)
+					pat_status = "MATCHED   ";
+				else if (wrong_line)
+					pat_status = "WRONG LINE";
+				else if (no_match)
+					pat_status = "EXPECTED  ";
+				else
+					pat_status = "UNEXPECTED";
+				msg = &msgs->patterns[j];
+				fprintf(stderr, "%s %s: '%s'\n",
+					pat_status,
+					msg->is_regex ? " REGEX" : "SUBSTR",
+					msg->substr);
+			}
+			if (wrong_line) {
+				fprintf(stderr,
+					"expecting match at line %d, actual match is at line %d\n",
+					prev_match->line + 1, match->line);
+			}
+			break;
+		}
+
+		if (!msg->negative)
+			prev_match = match;
+	}
+}
+
+struct cap_state {
+	__u64 old_caps;
+	bool initialized;
+};
+
+static int drop_capabilities(struct cap_state *caps)
+{
+	const __u64 caps_to_drop = (1ULL << CAP_SYS_ADMIN | 1ULL << CAP_NET_ADMIN |
+				    1ULL << CAP_PERFMON   | 1ULL << CAP_BPF);
+	int err;
+
+	err = cap_disable_effective(caps_to_drop, &caps->old_caps);
+	if (err) {
+		PRINT_FAIL("failed to drop capabilities: %i, %s\n", err, strerror(-err));
+		return err;
+	}
+
+	caps->initialized = true;
+	return 0;
+}
+
+static int restore_capabilities(struct cap_state *caps)
+{
+	int err;
+
+	if (!caps->initialized)
+		return 0;
+
+	err = cap_enable_effective(caps->old_caps, NULL);
+	if (err)
+		PRINT_FAIL("failed to restore capabilities: %i, %s\n", err, strerror(-err));
+	caps->initialized = false;
+	return err;
+}
+
+static bool can_execute_unpriv(struct test_loader *tester, struct test_spec *spec)
+{
+	if (sysctl_unpriv_disabled < 0)
+		sysctl_unpriv_disabled = get_unpriv_disabled() ? 1 : 0;
+	if (sysctl_unpriv_disabled)
+		return false;
+	if ((spec->prog_flags & BPF_F_ANY_ALIGNMENT) && !EFFICIENT_UNALIGNED_ACCESS)
+		return false;
+	return true;
+}
+
+static bool is_unpriv_capable_map(struct bpf_map *map)
+{
+	enum bpf_map_type type;
+	__u32 flags;
+
+	type = bpf_map__type(map);
+
+	switch (type) {
+	case BPF_MAP_TYPE_HASH:
+	case BPF_MAP_TYPE_PERCPU_HASH:
+	case BPF_MAP_TYPE_HASH_OF_MAPS:
+		flags = bpf_map__map_flags(map);
+		return !(flags & BPF_F_ZERO_SEED);
+	case BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE:
+	case BPF_MAP_TYPE_ARRAY:
+	case BPF_MAP_TYPE_RINGBUF:
+	case BPF_MAP_TYPE_PROG_ARRAY:
+	case BPF_MAP_TYPE_CGROUP_ARRAY:
+	case BPF_MAP_TYPE_PERCPU_ARRAY:
+	case BPF_MAP_TYPE_USER_RINGBUF:
+	case BPF_MAP_TYPE_ARRAY_OF_MAPS:
+	case BPF_MAP_TYPE_CGROUP_STORAGE:
+	case BPF_MAP_TYPE_PERF_EVENT_ARRAY:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int do_prog_test_run(int fd_prog, int *retval, bool empty_opts, int linear_sz)
+{
+	__u8 tmp_out[TEST_DATA_LEN << 2] = {};
+	__u8 tmp_in[TEST_DATA_LEN] = {};
+	struct __sk_buff ctx = {};
+	int err, saved_errno;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = tmp_in,
+		.data_size_in = sizeof(tmp_in),
+		.data_out = tmp_out,
+		.data_size_out = sizeof(tmp_out),
+		.repeat = 1,
+	);
+
+	if (linear_sz) {
+		ctx.data_end = linear_sz;
+		topts.ctx_in = &ctx;
+		topts.ctx_size_in = sizeof(ctx);
+	}
+
+	if (empty_opts) {
+		memset(&topts, 0, sizeof(struct bpf_test_run_opts));
+		topts.sz = sizeof(struct bpf_test_run_opts);
+	}
+	err = bpf_prog_test_run_opts(fd_prog, &topts);
+	saved_errno = errno;
+
+	if (err) {
+		PRINT_FAIL("FAIL: Unexpected bpf_prog_test_run error: %d (%s) ",
+			   saved_errno, strerror(saved_errno));
+		return err;
+	}
+
+	ASSERT_OK(0, "bpf_prog_test_run");
+	*retval = topts.retval;
+
+	return 0;
+}
+
+static bool should_do_test_run(struct test_spec *spec, struct test_subspec *subspec)
+{
+	if (!subspec->execute)
+		return false;
+
+	if (subspec->expect_failure)
+		return false;
+
+	if ((spec->prog_flags & BPF_F_ANY_ALIGNMENT) && !EFFICIENT_UNALIGNED_ACCESS) {
+		if (env.verbosity != VERBOSE_NONE)
+			printf("alignment prevents execution\n");
+		return false;
+	}
+
+	return true;
+}
+
+/* Get a disassembly of BPF program after verifier applies all rewrites */
+static int get_xlated_program_text(int prog_fd, char *text, size_t text_sz)
+{
+	struct bpf_insn *insn_start = NULL, *insn, *insn_end;
+	__u32 insns_cnt = 0, i;
+	char buf[64];
+	FILE *out = NULL;
+	int err;
+
+	err = get_xlated_program(prog_fd, &insn_start, &insns_cnt);
+	if (!ASSERT_OK(err, "get_xlated_program"))
+		goto out;
+	out = fmemopen(text, text_sz, "w");
+	if (!ASSERT_OK_PTR(out, "open_memstream"))
+		goto out;
+	insn_end = insn_start + insns_cnt;
+	insn = insn_start;
+	while (insn < insn_end) {
+		i = insn - insn_start;
+		insn = disasm_insn(insn, buf, sizeof(buf));
+		fprintf(out, "%d: %s\n", i, buf);
+	}
+	fflush(out);
+
+out:
+	free(insn_start);
+	if (out)
+		fclose(out);
+	return err;
+}
+
+/* Read the bpf stream corresponding to the stream_id */
+static int get_stream(int stream_id, int prog_fd, char *text, size_t text_sz)
+{
+	LIBBPF_OPTS(bpf_prog_stream_read_opts, ropts);
+	int ret;
+
+	ret = bpf_prog_stream_read(prog_fd, stream_id, text, text_sz, &ropts);
+	ASSERT_GT(ret, 0, "stream read");
+	text[ret] = '\0';
+
+	return ret;
+}
+
+/* this function is forced noinline and has short generic name to look better
+ * in test_progs output (in case of a failure)
+ */
+static noinline
+void run_subtest(struct test_loader *tester,
+		 struct bpf_object_open_opts *open_opts,
+		 const void *obj_bytes,
+		 size_t obj_byte_cnt,
+		 struct test_spec *specs,
+		 struct test_spec *spec,
+		 bool unpriv)
+{
+	struct test_subspec *subspec = unpriv ? &spec->unpriv : &spec->priv;
+	int current_runtime = is_jit_enabled() ? JITED : NO_JITED;
+	struct bpf_program *tprog = NULL, *tprog_iter;
+	struct bpf_link *link, *links[32] = {};
+	struct test_spec *spec_iter;
+	struct cap_state caps = {};
+	struct bpf_object *tobj;
+	struct bpf_map *map;
+	int retval, err, i;
+	int links_cnt = 0;
+	bool should_load;
+
+	if (!test__start_subtest(subspec->name))
+		return;
+
+	if ((get_current_arch() & spec->arch_mask) == 0) {
+		test__skip();
+		return;
+	}
+
+	if ((current_runtime & spec->load_mask) == 0) {
+		test__skip();
+		return;
+	}
+
+	if (unpriv) {
+		if (!can_execute_unpriv(tester, spec)) {
+			test__skip();
+			test__end_subtest();
+			return;
+		}
+		if (drop_capabilities(&caps)) {
+			test__end_subtest();
+			return;
+		}
+		if (subspec->caps) {
+			err = cap_enable_effective(subspec->caps, NULL);
+			if (err) {
+				PRINT_FAIL("failed to set capabilities: %i, %s\n", err, strerror(-err));
+				goto subtest_cleanup;
+			}
+		}
+	}
+
+	/* Implicitly reset to NULL if next test case doesn't specify */
+	open_opts->btf_custom_path = spec->btf_custom_path;
+
+	tobj = bpf_object__open_mem(obj_bytes, obj_byte_cnt, open_opts);
+	if (!ASSERT_OK_PTR(tobj, "obj_open_mem")) /* shouldn't happen */
+		goto subtest_cleanup;
+
+	i = 0;
+	bpf_object__for_each_program(tprog_iter, tobj) {
+		spec_iter = &specs[i++];
+		should_load = false;
+
+		if (spec_iter->valid) {
+			if (strcmp(bpf_program__name(tprog_iter), spec->prog_name) == 0) {
+				tprog = tprog_iter;
+				should_load = true;
+			}
+
+			if (spec_iter->auxiliary &&
+			    spec_iter->mode_mask & (unpriv ? UNPRIV : PRIV))
+				should_load = true;
+		}
+
+		bpf_program__set_autoload(tprog_iter, should_load);
+	}
+
+	prepare_case(tester, spec, tobj, tprog);
+
+	/* By default bpf_object__load() automatically creates all
+	 * maps declared in the skeleton. Some map types are only
+	 * allowed in priv mode. Disable autoload for such maps in
+	 * unpriv mode.
+	 */
+	bpf_object__for_each_map(map, tobj)
+		bpf_map__set_autocreate(map, !unpriv || is_unpriv_capable_map(map));
+
+	err = bpf_object__load(tobj);
+	if (subspec->expect_failure) {
+		if (!ASSERT_ERR(err, "unexpected_load_success")) {
+			emit_verifier_log(tester->log_buf, false /*force*/);
+			goto tobj_cleanup;
+		}
+	} else {
+		if (!ASSERT_OK(err, "unexpected_load_failure")) {
+			emit_verifier_log(tester->log_buf, true /*force*/);
+			goto tobj_cleanup;
+		}
+	}
+	emit_verifier_log(tester->log_buf, false /*force*/);
+	validate_msgs(tester->log_buf, &subspec->expect_msgs, emit_verifier_log);
+
+	/* Restore capabilities because the kernel will silently ignore requests
+	 * for program info (such as xlated program text) if we are not
+	 * bpf-capable. Also, for some reason test_verifier executes programs
+	 * with all capabilities restored. Do the same here.
+	 */
+	if (restore_capabilities(&caps))
+		goto tobj_cleanup;
+
+	if (subspec->expect_xlated.cnt) {
+		err = get_xlated_program_text(bpf_program__fd(tprog),
+					      tester->log_buf, tester->log_buf_sz);
+		if (err)
+			goto tobj_cleanup;
+		emit_xlated(tester->log_buf, false /*force*/);
+		validate_msgs(tester->log_buf, &subspec->expect_xlated, emit_xlated);
+	}
+
+	if (subspec->jited.cnt) {
+		err = get_jited_program_text(bpf_program__fd(tprog),
+					     tester->log_buf, tester->log_buf_sz);
+		if (err == -EOPNOTSUPP) {
+			printf("%s:SKIP: jited programs disassembly is not supported,\n", __func__);
+			printf("%s:SKIP: tests are built w/o LLVM development libs\n", __func__);
+			test__skip();
+			goto tobj_cleanup;
+		}
+		if (!ASSERT_EQ(err, 0, "get_jited_program_text"))
+			goto tobj_cleanup;
+		emit_jited(tester->log_buf, false /*force*/);
+		validate_msgs(tester->log_buf, &subspec->jited, emit_jited);
+	}
+
+	if (should_do_test_run(spec, subspec)) {
+		/* Do bpf_map__attach_struct_ops() for each struct_ops map.
+		 * This should trigger bpf_struct_ops->reg callback on kernel side.
+		 */
+		bpf_object__for_each_map(map, tobj) {
+			if (!bpf_map__autocreate(map) ||
+			    bpf_map__type(map) != BPF_MAP_TYPE_STRUCT_OPS)
+				continue;
+			if (links_cnt >= ARRAY_SIZE(links)) {
+				PRINT_FAIL("too many struct_ops maps");
+				goto tobj_cleanup;
+			}
+			link = bpf_map__attach_struct_ops(map);
+			if (!link) {
+				PRINT_FAIL("bpf_map__attach_struct_ops failed for map %s: err=%d\n",
+					   bpf_map__name(map), -errno);
+				goto tobj_cleanup;
+			}
+			links[links_cnt++] = link;
+		}
+
+		if (tester->pre_execution_cb) {
+			err = tester->pre_execution_cb(tobj);
+			if (err) {
+				PRINT_FAIL("pre_execution_cb failed: %d\n", err);
+				goto tobj_cleanup;
+			}
+		}
+
+		err = do_prog_test_run(bpf_program__fd(tprog), &retval,
+				       bpf_program__type(tprog) == BPF_PROG_TYPE_SYSCALL ? true : false,
+				       spec->linear_sz);
+		if (!err && retval != subspec->retval && subspec->retval != POINTER_VALUE) {
+			PRINT_FAIL("Unexpected retval: %d != %d\n", retval, subspec->retval);
+			goto tobj_cleanup;
+		}
+
+		if (subspec->stderr.cnt) {
+			err = get_stream(2, bpf_program__fd(tprog),
+					 tester->log_buf, tester->log_buf_sz);
+			if (err <= 0) {
+				PRINT_FAIL("Unexpected retval from get_stream(): %d, errno = %d\n",
+					   err, errno);
+				goto tobj_cleanup;
+			}
+			emit_stderr(tester->log_buf, false /*force*/);
+			validate_msgs(tester->log_buf, &subspec->stderr, emit_stderr);
+		}
+
+		if (subspec->stdout.cnt) {
+			err = get_stream(1, bpf_program__fd(tprog),
+					 tester->log_buf, tester->log_buf_sz);
+			if (err <= 0) {
+				PRINT_FAIL("Unexpected retval from get_stream(): %d, errno = %d\n",
+					   err, errno);
+				goto tobj_cleanup;
+			}
+			emit_stdout(tester->log_buf, false /*force*/);
+			validate_msgs(tester->log_buf, &subspec->stdout, emit_stdout);
+		}
+
+		/* redo bpf_map__attach_struct_ops for each test */
+		while (links_cnt > 0)
+			bpf_link__destroy(links[--links_cnt]);
+	}
+
+tobj_cleanup:
+	while (links_cnt > 0)
+		bpf_link__destroy(links[--links_cnt]);
+	bpf_object__close(tobj);
+subtest_cleanup:
+	test__end_subtest();
+	restore_capabilities(&caps);
+}
+
+static void process_subtest(struct test_loader *tester,
+			    const char *skel_name,
+			    skel_elf_bytes_fn elf_bytes_factory)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, open_opts, .object_name = skel_name);
+	struct test_spec *specs = NULL;
+	struct bpf_object *obj = NULL;
+	struct bpf_program *prog;
+	const void *obj_bytes;
+	int err, i, nr_progs;
+	size_t obj_byte_cnt;
+
+	if (tester_init(tester) < 0)
+		return; /* failed to initialize tester */
+
+	obj_bytes = elf_bytes_factory(&obj_byte_cnt);
+	obj = bpf_object__open_mem(obj_bytes, obj_byte_cnt, &open_opts);
+	if (!ASSERT_OK_PTR(obj, "obj_open_mem"))
+		return;
+
+	nr_progs = 0;
+	bpf_object__for_each_program(prog, obj)
+		++nr_progs;
+
+	specs = calloc(nr_progs, sizeof(struct test_spec));
+	if (!ASSERT_OK_PTR(specs, "specs_alloc"))
+		return;
+
+	i = 0;
+	bpf_object__for_each_program(prog, obj) {
+		/* ignore tests for which  we can't derive test specification */
+		err = parse_test_spec(tester, obj, prog, &specs[i++]);
+		if (err)
+			PRINT_FAIL("Can't parse test spec for program '%s'\n",
+				   bpf_program__name(prog));
+	}
+
+	i = 0;
+	bpf_object__for_each_program(prog, obj) {
+		struct test_spec *spec = &specs[i++];
+
+		if (!spec->valid || spec->auxiliary)
+			continue;
+
+		if (spec->mode_mask & PRIV)
+			run_subtest(tester, &open_opts, obj_bytes, obj_byte_cnt,
+				    specs, spec, false);
+		if (spec->mode_mask & UNPRIV)
+			run_subtest(tester, &open_opts, obj_bytes, obj_byte_cnt,
+				    specs, spec, true);
+
+	}
+
+	for (i = 0; i < nr_progs; ++i)
+		free_test_spec(&specs[i]);
+	free(specs);
+	bpf_object__close(obj);
+}
+
+void test_loader__run_subtests(struct test_loader *tester,
+			       const char *skel_name,
+			       skel_elf_bytes_fn elf_bytes_factory)
+{
+	/* see comment in run_subtest() for why we do this function nesting */
+	process_subtest(tester, skel_name, elf_bytes_factory);
+}
diff --git a/tools/testing/selftests/bpf/test_lru_map.c b/tools/testing/selftests/bpf/test_lru_map.c
new file mode 100644
index 000000000000..0921939532c6
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_lru_map.c
@@ -0,0 +1,887 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016 Facebook
+ */
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+#include <sched.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <sys/wait.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "../../../include/linux/filter.h"
+
+#define LOCAL_FREE_TARGET	(128)
+#define PERCPU_FREE_TARGET	(4)
+
+static int nr_cpus;
+
+static int create_map(int map_type, int map_flags, unsigned int size)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = map_flags);
+	int map_fd;
+
+	map_fd = bpf_map_create(map_type, NULL,  sizeof(unsigned long long),
+				sizeof(unsigned long long), size, &opts);
+
+	if (map_fd == -1)
+		perror("bpf_map_create");
+
+	return map_fd;
+}
+
+static int bpf_map_lookup_elem_with_ref_bit(int fd, unsigned long long key,
+					    void *value)
+{
+	struct bpf_insn insns[] = {
+		BPF_LD_MAP_VALUE(BPF_REG_9, 0, 0),
+		BPF_LD_MAP_FD(BPF_REG_1, fd),
+		BPF_LD_IMM64(BPF_REG_3, key),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, 0),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4),
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+		BPF_STX_MEM(BPF_DW, BPF_REG_9, BPF_REG_1, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 42),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	};
+	__u8 data[64] = {};
+	int mfd, pfd, ret, zero = 0;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = data,
+		.data_size_in = sizeof(data),
+		.repeat = 1,
+	);
+
+	mfd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, sizeof(int), sizeof(__u64), 1, NULL);
+	if (mfd < 0)
+		return -1;
+
+	insns[0].imm = mfd;
+
+	pfd = bpf_prog_load(BPF_PROG_TYPE_SCHED_CLS, NULL, "GPL", insns, ARRAY_SIZE(insns), NULL);
+	if (pfd < 0) {
+		close(mfd);
+		return -1;
+	}
+
+	ret = bpf_prog_test_run_opts(pfd, &topts);
+	if (ret < 0 || topts.retval != 42) {
+		ret = -1;
+	} else {
+		assert(!bpf_map_lookup_elem(mfd, &zero, value));
+		ret = 0;
+	}
+	close(pfd);
+	close(mfd);
+	return ret;
+}
+
+static int map_subset(int map0, int map1)
+{
+	unsigned long long next_key = 0;
+	unsigned long long value0[nr_cpus], value1[nr_cpus];
+	int ret;
+
+	while (!bpf_map_get_next_key(map1, &next_key, &next_key)) {
+		assert(!bpf_map_lookup_elem(map1, &next_key, value1));
+		ret = bpf_map_lookup_elem(map0, &next_key, value0);
+		if (ret) {
+			printf("key:%llu not found from map. %s(%d)\n",
+			       next_key, strerror(errno), errno);
+			return 0;
+		}
+		if (value0[0] != value1[0]) {
+			printf("key:%llu value0:%llu != value1:%llu\n",
+			       next_key, value0[0], value1[0]);
+			return 0;
+		}
+	}
+	return 1;
+}
+
+static int map_equal(int lru_map, int expected)
+{
+	return map_subset(lru_map, expected) && map_subset(expected, lru_map);
+}
+
+static int sched_next_online(int pid, int *next_to_try)
+{
+	cpu_set_t cpuset;
+	int next = *next_to_try;
+	int ret = -1;
+
+	while (next < nr_cpus) {
+		CPU_ZERO(&cpuset);
+		CPU_SET(next, &cpuset);
+		next++;
+		if (!sched_setaffinity(pid, sizeof(cpuset), &cpuset)) {
+			ret = 0;
+			break;
+		}
+	}
+
+	*next_to_try = next;
+	return ret;
+}
+
+/* Derive target_free from map_size, same as bpf_common_lru_populate */
+static unsigned int __tgt_size(unsigned int map_size)
+{
+	return (map_size / nr_cpus) / 2;
+}
+
+/* Inverse of how bpf_common_lru_populate derives target_free from map_size. */
+static unsigned int __map_size(unsigned int tgt_free)
+{
+	return tgt_free * nr_cpus * 2;
+}
+
+/* Size of the LRU map is 2
+ * Add key=1 (+1 key)
+ * Add key=2 (+1 key)
+ * Lookup Key=1
+ * Add Key=3
+ *   => Key=2 will be removed by LRU
+ * Iterate map.  Only found key=1 and key=3
+ */
+static void test_lru_sanity0(int map_type, int map_flags)
+{
+	unsigned long long key, value[nr_cpus];
+	int lru_map_fd, expected_map_fd;
+	int next_cpu = 0;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		lru_map_fd = create_map(map_type, map_flags, 2 * nr_cpus);
+	else
+		lru_map_fd = create_map(map_type, map_flags, 2);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, 2);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* insert key=1 element */
+
+	key = 1;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* BPF_NOEXIST means: add new element if it doesn't exist */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST) == -EEXIST);
+	/* key=1 already exists */
+
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, -1) == -EINVAL);
+
+	/* insert key=2 element */
+
+	/* check that key=2 is not found */
+	key = 2;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* BPF_EXIST means: update existing element */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_EXIST) == -ENOENT);
+	/* key=2 is not there */
+
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+
+	/* insert key=3 element */
+
+	/* check that key=3 is not found */
+	key = 3;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* check that key=1 can be found and mark the ref bit to
+	 * stop LRU from removing key=1
+	 */
+	key = 1;
+	assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+	assert(value[0] == 1234);
+
+	key = 3;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* key=2 has been removed from the LRU */
+	key = 2;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* lookup elem key=1 and delete it, then check it doesn't exist */
+	key = 1;
+	assert(!bpf_map_lookup_and_delete_elem(lru_map_fd, &key, &value));
+	assert(value[0] == 1234);
+
+	/* remove the same element from the expected map */
+	assert(!bpf_map_delete_elem(expected_map_fd, &key));
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Verify that unreferenced elements are recycled before referenced ones.
+ * Insert elements.
+ * Reference a subset of these.
+ * Insert more, enough to trigger recycling.
+ * Verify that unreferenced are recycled.
+ */
+static void test_lru_sanity1(int map_type, int map_flags, unsigned int tgt_free)
+{
+	unsigned long long key, end_key, value[nr_cpus];
+	int lru_map_fd, expected_map_fd;
+	unsigned int batch_size;
+	unsigned int map_size;
+	int next_cpu = 0;
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		/* This test is only applicable to common LRU list */
+		return;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	batch_size = tgt_free / 2;
+	assert(batch_size * 2 == tgt_free);
+
+	map_size = __map_size(tgt_free) + batch_size;
+	lru_map_fd = create_map(map_type, map_flags, map_size);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, map_size);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* Insert map_size - batch_size keys */
+	end_key = 1 + __map_size(tgt_free);
+	for (key = 1; key < end_key; key++)
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+
+	/* Lookup 1 to batch_size */
+	end_key = 1 + batch_size;
+	for (key = 1; key < end_key; key++) {
+		assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	/* Insert another map_size - batch_size keys
+	 * Map will contain 1 to batch_size plus these latest, i.e.,
+	 * => previous 1+batch_size to map_size - batch_size will have been
+	 * removed by LRU
+	 */
+	key = 1 + __map_size(tgt_free);
+	end_key = key + __map_size(tgt_free);
+	for (; key < end_key; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Verify that insertions exceeding map size will recycle the oldest.
+ * Verify that unreferenced elements are recycled before referenced.
+ */
+static void test_lru_sanity2(int map_type, int map_flags, unsigned int tgt_free)
+{
+	unsigned long long key, value[nr_cpus];
+	unsigned long long end_key;
+	int lru_map_fd, expected_map_fd;
+	unsigned int batch_size;
+	unsigned int map_size;
+	int next_cpu = 0;
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		/* This test is only applicable to common LRU list */
+		return;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	batch_size = tgt_free / 2;
+	assert(batch_size * 2 == tgt_free);
+
+	map_size = __map_size(tgt_free) + batch_size;
+	lru_map_fd = create_map(map_type, map_flags, map_size);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, map_size);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* Insert map_size - batch_size keys */
+	end_key = 1 + __map_size(tgt_free);
+	for (key = 1; key < end_key; key++)
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+
+	/* Any bpf_map_update_elem will require to acquire a new node
+	 * from LRU first.
+	 *
+	 * The local list is running out of free nodes.
+	 * It gets from the global LRU list which tries to
+	 * shrink the inactive list to get tgt_free
+	 * number of free nodes.
+	 *
+	 * Hence, the oldest key is removed from the LRU list.
+	 */
+	key = 1;
+	if (map_type == BPF_MAP_TYPE_LRU_PERCPU_HASH) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_delete_elem(lru_map_fd, &key));
+	} else {
+		assert(bpf_map_update_elem(lru_map_fd, &key, value,
+					   BPF_EXIST));
+	}
+
+	/* Re-insert 1 to batch_size again and do a lookup immediately.
+	 */
+	end_key = 1 + batch_size;
+	value[0] = 4321;
+	for (key = 1; key < end_key; key++) {
+		assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+		assert(value[0] == 4321);
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	value[0] = 1234;
+
+	/* Insert batch_size new elements */
+	key = 1 + __map_size(tgt_free);
+	end_key = key + batch_size;
+	for (; key < end_key; key++)
+		/* These newly added but not referenced keys will be
+		 * gone during the next LRU shrink.
+		 */
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+
+	/* Insert map_size - batch_size elements */
+	end_key += __map_size(tgt_free);
+	for (; key < end_key; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Test the active/inactive list rotation
+ *
+ * Fill the whole map, deplete the free list.
+ * Reference all except the last lru->target_free elements.
+ * Insert lru->target_free new elements. This triggers one shrink.
+ * Verify that the non-referenced elements are replaced.
+ */
+static void test_lru_sanity3(int map_type, int map_flags, unsigned int tgt_free)
+{
+	unsigned long long key, end_key, value[nr_cpus];
+	int lru_map_fd, expected_map_fd;
+	unsigned int batch_size;
+	unsigned int map_size;
+	int next_cpu = 0;
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		/* This test is only applicable to common LRU list */
+		return;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	batch_size = __tgt_size(tgt_free);
+
+	map_size = tgt_free * 2;
+	lru_map_fd = create_map(map_type, map_flags, map_size);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, map_size);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* Fill the map */
+	end_key = 1 + map_size;
+	for (key = 1; key < end_key; key++)
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+
+	/* Reference all but the last batch_size */
+	end_key = 1 + map_size - batch_size;
+	for (key = 1; key < end_key; key++) {
+		assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	/* Insert new batch_size: replaces the non-referenced elements */
+	key = 2 * tgt_free + 1;
+	end_key = key + batch_size;
+	for (; key < end_key; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Test deletion */
+static void test_lru_sanity4(int map_type, int map_flags, unsigned int tgt_free)
+{
+	int lru_map_fd, expected_map_fd;
+	unsigned long long key, value[nr_cpus];
+	unsigned long long end_key;
+	int next_cpu = 0;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		lru_map_fd = create_map(map_type, map_flags,
+					3 * tgt_free * nr_cpus);
+	else
+		lru_map_fd = create_map(map_type, map_flags,
+					3 * __map_size(tgt_free));
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0,
+				     3 * tgt_free);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	for (key = 1; key <= 2 * tgt_free; key++)
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+
+	key = 1;
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+
+	for (key = 1; key <= tgt_free; key++) {
+		assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	for (; key <= 2 * tgt_free; key++) {
+		assert(!bpf_map_delete_elem(lru_map_fd, &key));
+		assert(bpf_map_delete_elem(lru_map_fd, &key));
+	}
+
+	end_key = key + 2 * tgt_free;
+	for (; key < end_key; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+static void do_test_lru_sanity5(unsigned long long last_key, int map_fd)
+{
+	unsigned long long key, value[nr_cpus];
+
+	/* Ensure the last key inserted by previous CPU can be found */
+	assert(!bpf_map_lookup_elem_with_ref_bit(map_fd, last_key, value));
+	value[0] = 1234;
+
+	key = last_key + 1;
+	assert(!bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_lookup_elem_with_ref_bit(map_fd, key, value));
+
+	/* Cannot find the last key because it was removed by LRU */
+	assert(bpf_map_lookup_elem(map_fd, &last_key, value) == -ENOENT);
+}
+
+/* Test map with only one element */
+static void test_lru_sanity5(int map_type, int map_flags)
+{
+	unsigned long long key, value[nr_cpus];
+	int next_cpu = 0;
+	int map_fd;
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		return;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	map_fd = create_map(map_type, map_flags, 1);
+	assert(map_fd != -1);
+
+	value[0] = 1234;
+	key = 0;
+	assert(!bpf_map_update_elem(map_fd, &key, value, BPF_NOEXIST));
+
+	while (sched_next_online(0, &next_cpu) != -1) {
+		pid_t pid;
+
+		pid = fork();
+		if (pid == 0) {
+			do_test_lru_sanity5(key, map_fd);
+			exit(0);
+		} else if (pid == -1) {
+			printf("couldn't spawn process to test key:%llu\n",
+			       key);
+			exit(1);
+		} else {
+			int status;
+
+			assert(waitpid(pid, &status, 0) == pid);
+			assert(status == 0);
+			key++;
+		}
+	}
+
+	close(map_fd);
+	/* At least one key should be tested */
+	assert(key > 0);
+
+	printf("Pass\n");
+}
+
+/* Test list rotation for BPF_F_NO_COMMON_LRU map */
+static void test_lru_sanity6(int map_type, int map_flags, int tgt_free)
+{
+	int lru_map_fd, expected_map_fd;
+	unsigned long long key, value[nr_cpus];
+	unsigned int map_size = tgt_free * 2;
+	int next_cpu = 0;
+
+	if (!(map_flags & BPF_F_NO_COMMON_LRU))
+		return;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, map_size);
+	assert(expected_map_fd != -1);
+
+	lru_map_fd = create_map(map_type, map_flags, map_size * nr_cpus);
+	assert(lru_map_fd != -1);
+
+	value[0] = 1234;
+
+	for (key = 1; key <= tgt_free; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	for (; key <= tgt_free * 2; key++) {
+		unsigned long long stable_key;
+
+		/* Make ref bit sticky for key: [1, tgt_free] */
+		for (stable_key = 1; stable_key <= tgt_free; stable_key++) {
+			/* Mark the ref bit */
+			assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd,
+								 stable_key, value));
+		}
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	for (; key <= tgt_free * 3; key++) {
+		assert(!bpf_map_update_elem(lru_map_fd, &key, value,
+					    BPF_NOEXIST));
+		assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+					    BPF_NOEXIST));
+	}
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Size of the LRU map is 2
+ * Add key=1 (+1 key)
+ * Add key=2 (+1 key)
+ * Lookup Key=1 (datapath)
+ * Lookup Key=2 (syscall)
+ * Add Key=3
+ *   => Key=2 will be removed by LRU
+ * Iterate map.  Only found key=1 and key=3
+ */
+static void test_lru_sanity7(int map_type, int map_flags)
+{
+	unsigned long long key, value[nr_cpus];
+	int lru_map_fd, expected_map_fd;
+	int next_cpu = 0;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		lru_map_fd = create_map(map_type, map_flags, 2 * nr_cpus);
+	else
+		lru_map_fd = create_map(map_type, map_flags, 2);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, 2);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* insert key=1 element */
+
+	key = 1;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* BPF_NOEXIST means: add new element if it doesn't exist */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST) == -EEXIST);
+	/* key=1 already exists */
+
+	/* insert key=2 element */
+
+	/* check that key=2 is not found */
+	key = 2;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* BPF_EXIST means: update existing element */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_EXIST) == -ENOENT);
+	/* key=2 is not there */
+
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+
+	/* insert key=3 element */
+
+	/* check that key=3 is not found */
+	key = 3;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* check that key=1 can be found and mark the ref bit to
+	 * stop LRU from removing key=1
+	 */
+	key = 1;
+	assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+	assert(value[0] == 1234);
+
+	/* check that key=2 can be found and do _not_ mark ref bit.
+	 * this will be evicted on next update.
+	 */
+	key = 2;
+	assert(!bpf_map_lookup_elem(lru_map_fd, &key, value));
+	assert(value[0] == 1234);
+
+	key = 3;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* key=2 has been removed from the LRU */
+	key = 2;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+/* Size of the LRU map is 2
+ * Add key=1 (+1 key)
+ * Add key=2 (+1 key)
+ * Lookup Key=1 (syscall)
+ * Lookup Key=2 (datapath)
+ * Add Key=3
+ *   => Key=1 will be removed by LRU
+ * Iterate map.  Only found key=2 and key=3
+ */
+static void test_lru_sanity8(int map_type, int map_flags)
+{
+	unsigned long long key, value[nr_cpus];
+	int lru_map_fd, expected_map_fd;
+	int next_cpu = 0;
+
+	printf("%s (map_type:%d map_flags:0x%X): ", __func__, map_type,
+	       map_flags);
+
+	assert(sched_next_online(0, &next_cpu) != -1);
+
+	if (map_flags & BPF_F_NO_COMMON_LRU)
+		lru_map_fd = create_map(map_type, map_flags, 2 * nr_cpus);
+	else
+		lru_map_fd = create_map(map_type, map_flags, 2);
+	assert(lru_map_fd != -1);
+
+	expected_map_fd = create_map(BPF_MAP_TYPE_HASH, 0, 2);
+	assert(expected_map_fd != -1);
+
+	value[0] = 1234;
+
+	/* insert key=1 element */
+
+	key = 1;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+
+	/* BPF_NOEXIST means: add new element if it doesn't exist */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST) == -EEXIST);
+	/* key=1 already exists */
+
+	/* insert key=2 element */
+
+	/* check that key=2 is not found */
+	key = 2;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* BPF_EXIST means: update existing element */
+	assert(bpf_map_update_elem(lru_map_fd, &key, value, BPF_EXIST) == -ENOENT);
+	/* key=2 is not there */
+
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* insert key=3 element */
+
+	/* check that key=3 is not found */
+	key = 3;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	/* check that key=1 can be found and do _not_ mark ref bit.
+	 * this will be evicted on next update.
+	 */
+	key = 1;
+	assert(!bpf_map_lookup_elem(lru_map_fd, &key, value));
+	assert(value[0] == 1234);
+
+	/* check that key=2 can be found and mark the ref bit to
+	 * stop LRU from removing key=2
+	 */
+	key = 2;
+	assert(!bpf_map_lookup_elem_with_ref_bit(lru_map_fd, key, value));
+	assert(value[0] == 1234);
+
+	key = 3;
+	assert(!bpf_map_update_elem(lru_map_fd, &key, value, BPF_NOEXIST));
+	assert(!bpf_map_update_elem(expected_map_fd, &key, value,
+				    BPF_NOEXIST));
+
+	/* key=1 has been removed from the LRU */
+	key = 1;
+	assert(bpf_map_lookup_elem(lru_map_fd, &key, value) == -ENOENT);
+
+	assert(map_equal(lru_map_fd, expected_map_fd));
+
+	close(expected_map_fd);
+	close(lru_map_fd);
+
+	printf("Pass\n");
+}
+
+int main(int argc, char **argv)
+{
+	int map_types[] = {BPF_MAP_TYPE_LRU_HASH,
+			     BPF_MAP_TYPE_LRU_PERCPU_HASH};
+	int map_flags[] = {0, BPF_F_NO_COMMON_LRU};
+	int t, f;
+
+	setbuf(stdout, NULL);
+
+	nr_cpus = bpf_num_possible_cpus();
+	assert(nr_cpus != -1);
+	printf("nr_cpus:%d\n\n", nr_cpus);
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	for (f = 0; f < ARRAY_SIZE(map_flags); f++) {
+		unsigned int tgt_free = (map_flags[f] & BPF_F_NO_COMMON_LRU) ?
+			PERCPU_FREE_TARGET : LOCAL_FREE_TARGET;
+
+		for (t = 0; t < ARRAY_SIZE(map_types); t++) {
+			test_lru_sanity0(map_types[t], map_flags[f]);
+			test_lru_sanity1(map_types[t], map_flags[f], tgt_free);
+			test_lru_sanity2(map_types[t], map_flags[f], tgt_free);
+			test_lru_sanity3(map_types[t], map_flags[f], tgt_free);
+			test_lru_sanity4(map_types[t], map_flags[f], tgt_free);
+			test_lru_sanity5(map_types[t], map_flags[f]);
+			test_lru_sanity6(map_types[t], map_flags[f], tgt_free);
+			test_lru_sanity7(map_types[t], map_flags[f]);
+			test_lru_sanity8(map_types[t], map_flags[f]);
+
+			printf("\n");
+		}
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
new file mode 100644
index 000000000000..ccc5acd55ff9
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -0,0 +1,1937 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Testsuite for eBPF maps
+ *
+ * Copyright (c) 2014 PLUMgrid, http://plumgrid.com
+ * Copyright (c) 2016 Facebook
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <time.h>
+
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <linux/bpf.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "test_maps.h"
+#include "testing_helpers.h"
+
+int skips;
+
+static struct bpf_map_create_opts map_opts = { .sz = sizeof(map_opts) };
+
+static void test_hashmap(unsigned int task, void *data)
+{
+	long long key, next_key, first_key, value;
+	int fd;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value), 2, &map_opts);
+	if (fd < 0) {
+		printf("Failed to create hashmap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	key = 1;
+	value = 1234;
+	/* Insert key=1 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+
+	value = 0;
+	/* BPF_NOEXIST means add new element if it doesn't exist. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       /* key=1 already exists. */
+	       errno == EEXIST);
+
+	/* -1 is an invalid flag. */
+	assert(bpf_map_update_elem(fd, &key, &value, -1) < 0 &&
+	       errno == EINVAL);
+
+	/* Check that key=1 can be found. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 1234);
+
+	key = 2;
+	value = 1234;
+	/* Insert key=2 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+
+	/* Check that key=2 matches the value and delete it */
+	assert(bpf_map_lookup_and_delete_elem(fd, &key, &value) == 0 && value == 1234);
+
+	/* Check that key=2 is not found. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
+
+	/* BPF_EXIST means update existing element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) < 0 &&
+	       /* key=2 is not there. */
+	       errno == ENOENT);
+
+	/* Insert key=2 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == 0);
+
+	/* key=1 and key=2 were inserted, check that key=0 cannot be
+	 * inserted due to max_entries limit.
+	 */
+	key = 0;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Update existing element, though the map is full. */
+	key = 1;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) == 0);
+	key = 2;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+	key = 3;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Check that key = 0 doesn't exist. */
+	key = 0;
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
+
+	/* Iterate over two elements. */
+	assert(bpf_map_get_next_key(fd, NULL, &first_key) == 0 &&
+	       (first_key == 1 || first_key == 2));
+	assert(bpf_map_get_next_key(fd, &key, &next_key) == 0 &&
+	       (next_key == first_key));
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
+	       (next_key == 1 || next_key == 2) &&
+	       (next_key != first_key));
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
+	       errno == ENOENT);
+
+	/* Delete both elements. */
+	key = 1;
+	assert(bpf_map_delete_elem(fd, &key) == 0);
+	key = 2;
+	assert(bpf_map_delete_elem(fd, &key) == 0);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
+
+	key = 0;
+	/* Check that map is empty. */
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) < 0 &&
+	       errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &next_key) < 0 &&
+	       errno == ENOENT);
+
+	close(fd);
+}
+
+static void test_hashmap_sizes(unsigned int task, void *data)
+{
+	int fd, i, j;
+
+	for (i = 1; i <= 512; i <<= 1)
+		for (j = 1; j <= 1 << 18; j <<= 1) {
+			fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, i, j, 2, &map_opts);
+			if (fd < 0) {
+				if (errno == ENOMEM)
+					return;
+				printf("Failed to create hashmap key=%d value=%d '%s'\n",
+				       i, j, strerror(errno));
+				exit(1);
+			}
+			close(fd);
+			usleep(10); /* give kernel time to destroy */
+		}
+}
+
+static void test_hashmap_percpu(unsigned int task, void *data)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	BPF_DECLARE_PERCPU(long, value);
+	long long key, next_key, first_key;
+	int expected_key_mask = 0;
+	int fd, i;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_PERCPU_HASH, NULL, sizeof(key),
+			    sizeof(bpf_percpu(value, 0)), 2, &map_opts);
+	if (fd < 0) {
+		printf("Failed to create hashmap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(value, i) = i + 100;
+
+	key = 1;
+	/* Insert key=1 element. */
+	assert(!(expected_key_mask & key));
+	assert(bpf_map_update_elem(fd, &key, value, BPF_ANY) == 0);
+
+	/* Lookup and delete elem key=1 and check value. */
+	assert(bpf_map_lookup_and_delete_elem(fd, &key, value) == 0 &&
+	       bpf_percpu(value,0) == 100);
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(value,i) = i + 100;
+
+	/* Insert key=1 element which should not exist. */
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) == 0);
+	expected_key_mask |= key;
+
+	/* BPF_NOEXIST means add new element if it doesn't exist. */
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) < 0 &&
+	       /* key=1 already exists. */
+	       errno == EEXIST);
+
+	/* -1 is an invalid flag. */
+	assert(bpf_map_update_elem(fd, &key, value, -1) < 0 &&
+	       errno == EINVAL);
+
+	/* Check that key=1 can be found. Value could be 0 if the lookup
+	 * was run from a different CPU.
+	 */
+	bpf_percpu(value, 0) = 1;
+	assert(bpf_map_lookup_elem(fd, &key, value) == 0 &&
+	       bpf_percpu(value, 0) == 100);
+
+	key = 2;
+	/* Check that key=2 is not found. */
+	assert(bpf_map_lookup_elem(fd, &key, value) < 0 && errno == ENOENT);
+
+	/* BPF_EXIST means update existing element. */
+	assert(bpf_map_update_elem(fd, &key, value, BPF_EXIST) < 0 &&
+	       /* key=2 is not there. */
+	       errno == ENOENT);
+
+	/* Insert key=2 element. */
+	assert(!(expected_key_mask & key));
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) == 0);
+	expected_key_mask |= key;
+
+	/* key=1 and key=2 were inserted, check that key=0 cannot be
+	 * inserted due to max_entries limit.
+	 */
+	key = 0;
+	assert(bpf_map_update_elem(fd, &key, value, BPF_NOEXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Check that key = 0 doesn't exist. */
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
+
+	/* Iterate over two elements. */
+	assert(bpf_map_get_next_key(fd, NULL, &first_key) == 0 &&
+	       ((expected_key_mask & first_key) == first_key));
+	while (!bpf_map_get_next_key(fd, &key, &next_key)) {
+		if (first_key) {
+			assert(next_key == first_key);
+			first_key = 0;
+		}
+		assert((expected_key_mask & next_key) == next_key);
+		expected_key_mask &= ~next_key;
+
+		assert(bpf_map_lookup_elem(fd, &next_key, value) == 0);
+
+		for (i = 0; i < nr_cpus; i++)
+			assert(bpf_percpu(value, i) == i + 100);
+
+		key = next_key;
+	}
+	assert(errno == ENOENT);
+
+	/* Update with BPF_EXIST. */
+	key = 1;
+	assert(bpf_map_update_elem(fd, &key, value, BPF_EXIST) == 0);
+
+	/* Delete both elements. */
+	key = 1;
+	assert(bpf_map_delete_elem(fd, &key) == 0);
+	key = 2;
+	assert(bpf_map_delete_elem(fd, &key) == 0);
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == ENOENT);
+
+	key = 0;
+	/* Check that map is empty. */
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) < 0 &&
+	       errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &next_key) < 0 &&
+	       errno == ENOENT);
+
+	close(fd);
+}
+
+#define VALUE_SIZE 3
+static int helper_fill_hashmap(int max_entries)
+{
+	int i, fd, ret;
+	long long key, value[VALUE_SIZE] = {};
+
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value),
+			    max_entries, &map_opts);
+	CHECK(fd < 0,
+	      "failed to create hashmap",
+	      "err: %s, flags: 0x%x\n", strerror(errno), map_opts.map_flags);
+
+	for (i = 0; i < max_entries; i++) {
+		key = i; value[0] = key;
+		ret = bpf_map_update_elem(fd, &key, value, BPF_NOEXIST);
+		CHECK(ret != 0,
+		      "can't update hashmap",
+		      "err: %s\n", strerror(ret));
+	}
+
+	return fd;
+}
+
+static void test_hashmap_walk(unsigned int task, void *data)
+{
+	int fd, i, max_entries = 10000;
+	long long key, value[VALUE_SIZE], next_key;
+	bool next_key_valid = true;
+
+	fd = helper_fill_hashmap(max_entries);
+
+	for (i = 0; bpf_map_get_next_key(fd, !i ? NULL : &key,
+					 &next_key) == 0; i++) {
+		key = next_key;
+		assert(bpf_map_lookup_elem(fd, &key, value) == 0);
+	}
+
+	assert(i == max_entries);
+
+	assert(bpf_map_get_next_key(fd, NULL, &key) == 0);
+	for (i = 0; next_key_valid; i++) {
+		next_key_valid = bpf_map_get_next_key(fd, &key, &next_key) == 0;
+		assert(bpf_map_lookup_elem(fd, &key, value) == 0);
+		value[0]++;
+		assert(bpf_map_update_elem(fd, &key, value, BPF_EXIST) == 0);
+		key = next_key;
+	}
+
+	assert(i == max_entries);
+
+	for (i = 0; bpf_map_get_next_key(fd, !i ? NULL : &key,
+					 &next_key) == 0; i++) {
+		key = next_key;
+		assert(bpf_map_lookup_elem(fd, &key, value) == 0);
+		assert(value[0] - 1 == key);
+	}
+
+	assert(i == max_entries);
+	close(fd);
+}
+
+static void test_hashmap_zero_seed(void)
+{
+	int i, first, second, old_flags;
+	long long key, next_first, next_second;
+
+	old_flags = map_opts.map_flags;
+	map_opts.map_flags |= BPF_F_ZERO_SEED;
+
+	first = helper_fill_hashmap(3);
+	second = helper_fill_hashmap(3);
+
+	for (i = 0; ; i++) {
+		void *key_ptr = !i ? NULL : &key;
+
+		if (bpf_map_get_next_key(first, key_ptr, &next_first) != 0)
+			break;
+
+		CHECK(bpf_map_get_next_key(second, key_ptr, &next_second) != 0,
+		      "next_key for second map must succeed",
+		      "key_ptr: %p", key_ptr);
+		CHECK(next_first != next_second,
+		      "keys must match",
+		      "i: %d first: %lld second: %lld\n", i,
+		      next_first, next_second);
+
+		key = next_first;
+	}
+
+	map_opts.map_flags = old_flags;
+	close(first);
+	close(second);
+}
+
+static void test_arraymap(unsigned int task, void *data)
+{
+	int key, next_key, fd;
+	long long value;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, sizeof(key), sizeof(value), 2, NULL);
+	if (fd < 0) {
+		printf("Failed to create arraymap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	key = 1;
+	value = 1234;
+	/* Insert key=1 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+
+	value = 0;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       errno == EEXIST);
+
+	/* Check that key=1 can be found. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 1234);
+
+	key = 0;
+	/* Check that key=0 is also found and zero initialized. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 0);
+
+	/* key=0 and key=1 were inserted, check that key=2 cannot be inserted
+	 * due to max_entries limit.
+	 */
+	key = 2;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_EXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Check that key = 2 doesn't exist. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
+
+	/* Iterate over two elements. */
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) == 0 &&
+	       next_key == 0);
+	assert(bpf_map_get_next_key(fd, &key, &next_key) == 0 &&
+	       next_key == 0);
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
+	       next_key == 1);
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
+	       errno == ENOENT);
+
+	/* Delete shouldn't succeed. */
+	key = 1;
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == EINVAL);
+
+	close(fd);
+}
+
+static void test_arraymap_percpu(unsigned int task, void *data)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	BPF_DECLARE_PERCPU(long, values);
+	int key, next_key, fd, i;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_PERCPU_ARRAY, NULL, sizeof(key),
+			    sizeof(bpf_percpu(values, 0)), 2, NULL);
+	if (fd < 0) {
+		printf("Failed to create arraymap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(values, i) = i + 100;
+
+	key = 1;
+	/* Insert key=1 element. */
+	assert(bpf_map_update_elem(fd, &key, values, BPF_ANY) == 0);
+
+	bpf_percpu(values, 0) = 0;
+	assert(bpf_map_update_elem(fd, &key, values, BPF_NOEXIST) < 0 &&
+	       errno == EEXIST);
+
+	/* Check that key=1 can be found. */
+	assert(bpf_map_lookup_elem(fd, &key, values) == 0 &&
+	       bpf_percpu(values, 0) == 100);
+
+	key = 0;
+	/* Check that key=0 is also found and zero initialized. */
+	assert(bpf_map_lookup_elem(fd, &key, values) == 0 &&
+	       bpf_percpu(values, 0) == 0 &&
+	       bpf_percpu(values, nr_cpus - 1) == 0);
+
+	/* Check that key=2 cannot be inserted due to max_entries limit. */
+	key = 2;
+	assert(bpf_map_update_elem(fd, &key, values, BPF_EXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Check that key = 2 doesn't exist. */
+	assert(bpf_map_lookup_elem(fd, &key, values) < 0 && errno == ENOENT);
+
+	/* Iterate over two elements. */
+	assert(bpf_map_get_next_key(fd, NULL, &next_key) == 0 &&
+	       next_key == 0);
+	assert(bpf_map_get_next_key(fd, &key, &next_key) == 0 &&
+	       next_key == 0);
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) == 0 &&
+	       next_key == 1);
+	assert(bpf_map_get_next_key(fd, &next_key, &next_key) < 0 &&
+	       errno == ENOENT);
+
+	/* Delete shouldn't succeed. */
+	key = 1;
+	assert(bpf_map_delete_elem(fd, &key) < 0 && errno == EINVAL);
+
+	close(fd);
+}
+
+static void test_arraymap_percpu_many_keys(void)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	BPF_DECLARE_PERCPU(long, values);
+	/* nr_keys is not too large otherwise the test stresses percpu
+	 * allocator more than anything else
+	 */
+	unsigned int nr_keys = 2000;
+	int key, fd, i;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_PERCPU_ARRAY, NULL, sizeof(key),
+			    sizeof(bpf_percpu(values, 0)), nr_keys, NULL);
+	if (fd < 0) {
+		printf("Failed to create per-cpu arraymap '%s'!\n",
+		       strerror(errno));
+		exit(1);
+	}
+
+	for (i = 0; i < nr_cpus; i++)
+		bpf_percpu(values, i) = i + 10;
+
+	for (key = 0; key < nr_keys; key++)
+		assert(bpf_map_update_elem(fd, &key, values, BPF_ANY) == 0);
+
+	for (key = 0; key < nr_keys; key++) {
+		for (i = 0; i < nr_cpus; i++)
+			bpf_percpu(values, i) = 0;
+
+		assert(bpf_map_lookup_elem(fd, &key, values) == 0);
+
+		for (i = 0; i < nr_cpus; i++)
+			assert(bpf_percpu(values, i) == i + 10);
+	}
+
+	close(fd);
+}
+
+static void test_devmap(unsigned int task, void *data)
+{
+	int fd;
+	__u32 key, value;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_DEVMAP, NULL, sizeof(key), sizeof(value), 2, NULL);
+	if (fd < 0) {
+		printf("Failed to create devmap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	close(fd);
+}
+
+static void test_devmap_hash(unsigned int task, void *data)
+{
+	int fd;
+	__u32 key, value;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_DEVMAP_HASH, NULL, sizeof(key), sizeof(value), 2, NULL);
+	if (fd < 0) {
+		printf("Failed to create devmap_hash '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	close(fd);
+}
+
+static void test_queuemap(unsigned int task, void *data)
+{
+	const int MAP_SIZE = 32;
+	__u32 vals[MAP_SIZE + MAP_SIZE/2], val = 0;
+	int fd, i;
+
+	/* Fill test values to be used */
+	for (i = 0; i < MAP_SIZE + MAP_SIZE/2; i++)
+		vals[i] = rand();
+
+	/* Invalid key size */
+	fd = bpf_map_create(BPF_MAP_TYPE_QUEUE, NULL, 4, sizeof(val), MAP_SIZE, &map_opts);
+	assert(fd < 0 && errno == EINVAL);
+
+	fd = bpf_map_create(BPF_MAP_TYPE_QUEUE, NULL, 0, sizeof(val), MAP_SIZE, &map_opts);
+	/* Queue map does not support BPF_F_NO_PREALLOC */
+	if (map_opts.map_flags & BPF_F_NO_PREALLOC) {
+		assert(fd < 0 && errno == EINVAL);
+		return;
+	}
+	if (fd < 0) {
+		printf("Failed to create queuemap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	/* Push MAP_SIZE elements */
+	for (i = 0; i < MAP_SIZE; i++)
+		assert(bpf_map_update_elem(fd, NULL, &vals[i], 0) == 0);
+
+	/* Check that element cannot be pushed due to max_entries limit */
+	assert(bpf_map_update_elem(fd, NULL, &val, 0) < 0 &&
+	       errno == E2BIG);
+
+	/* Peek element */
+	assert(bpf_map_lookup_elem(fd, NULL, &val) == 0 && val == vals[0]);
+
+	/* Replace half elements */
+	for (i = MAP_SIZE; i < MAP_SIZE + MAP_SIZE/2; i++)
+		assert(bpf_map_update_elem(fd, NULL, &vals[i], BPF_EXIST) == 0);
+
+	/* Pop all elements */
+	for (i = MAP_SIZE/2; i < MAP_SIZE + MAP_SIZE/2; i++)
+		assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) == 0 &&
+		       val == vals[i]);
+
+	/* Check that there are not elements left */
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) < 0 &&
+	       errno == ENOENT);
+
+	/* Check that non supported functions set errno to EINVAL */
+	assert(bpf_map_delete_elem(fd, NULL) < 0 && errno == EINVAL);
+	assert(bpf_map_get_next_key(fd, NULL, NULL) < 0 && errno == EINVAL);
+
+	close(fd);
+}
+
+static void test_stackmap(unsigned int task, void *data)
+{
+	const int MAP_SIZE = 32;
+	__u32 vals[MAP_SIZE + MAP_SIZE/2], val = 0;
+	int fd, i;
+
+	/* Fill test values to be used */
+	for (i = 0; i < MAP_SIZE + MAP_SIZE/2; i++)
+		vals[i] = rand();
+
+	/* Invalid key size */
+	fd = bpf_map_create(BPF_MAP_TYPE_STACK, NULL, 4, sizeof(val), MAP_SIZE, &map_opts);
+	assert(fd < 0 && errno == EINVAL);
+
+	fd = bpf_map_create(BPF_MAP_TYPE_STACK, NULL, 0, sizeof(val), MAP_SIZE, &map_opts);
+	/* Stack map does not support BPF_F_NO_PREALLOC */
+	if (map_opts.map_flags & BPF_F_NO_PREALLOC) {
+		assert(fd < 0 && errno == EINVAL);
+		return;
+	}
+	if (fd < 0) {
+		printf("Failed to create stackmap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	/* Push MAP_SIZE elements */
+	for (i = 0; i < MAP_SIZE; i++)
+		assert(bpf_map_update_elem(fd, NULL, &vals[i], 0) == 0);
+
+	/* Check that element cannot be pushed due to max_entries limit */
+	assert(bpf_map_update_elem(fd, NULL, &val, 0) < 0 &&
+	       errno == E2BIG);
+
+	/* Peek element */
+	assert(bpf_map_lookup_elem(fd, NULL, &val) == 0 && val == vals[i - 1]);
+
+	/* Replace half elements */
+	for (i = MAP_SIZE; i < MAP_SIZE + MAP_SIZE/2; i++)
+		assert(bpf_map_update_elem(fd, NULL, &vals[i], BPF_EXIST) == 0);
+
+	/* Pop all elements */
+	for (i = MAP_SIZE + MAP_SIZE/2 - 1; i >= MAP_SIZE/2; i--)
+		assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) == 0 &&
+		       val == vals[i]);
+
+	/* Check that there are not elements left */
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &val) < 0 &&
+	       errno == ENOENT);
+
+	/* Check that non supported functions set errno to EINVAL */
+	assert(bpf_map_delete_elem(fd, NULL) < 0 && errno == EINVAL);
+	assert(bpf_map_get_next_key(fd, NULL, NULL) < 0 && errno == EINVAL);
+
+	close(fd);
+}
+
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <sys/select.h>
+#include <linux/err.h>
+#define SOCKMAP_PARSE_PROG "./sockmap_parse_prog.bpf.o"
+#define SOCKMAP_VERDICT_PROG "./sockmap_verdict_prog.bpf.o"
+#define SOCKMAP_TCP_MSG_PROG "./sockmap_tcp_msg_prog.bpf.o"
+static void test_sockmap(unsigned int tasks, void *data)
+{
+	struct bpf_map *bpf_map_rx, *bpf_map_tx, *bpf_map_msg, *bpf_map_break;
+	int map_fd_msg = 0, map_fd_rx = 0, map_fd_tx = 0, map_fd_break;
+	struct bpf_object *parse_obj, *verdict_obj, *msg_obj;
+	int ports[] = {50200, 50201, 50202, 50204};
+	int err, i, fd, udp, sfd[6] = {0xdeadbeef};
+	u8 buf[20] = {0x0, 0x5, 0x3, 0x2, 0x1, 0x0};
+	int parse_prog, verdict_prog, msg_prog;
+	struct sockaddr_in addr;
+	int one = 1, s, sc, rc;
+	struct timeval to;
+	__u32 key, value;
+	pid_t pid[tasks];
+	fd_set w;
+
+	/* Create some sockets to use with sockmap */
+	for (i = 0; i < 2; i++) {
+		sfd[i] = socket(AF_INET, SOCK_STREAM, 0);
+		if (sfd[i] < 0)
+			goto out;
+		err = setsockopt(sfd[i], SOL_SOCKET, SO_REUSEADDR,
+				 (char *)&one, sizeof(one));
+		if (err) {
+			printf("failed to setsockopt\n");
+			goto out;
+		}
+		err = ioctl(sfd[i], FIONBIO, (char *)&one);
+		if (err < 0) {
+			printf("failed to ioctl\n");
+			goto out;
+		}
+		memset(&addr, 0, sizeof(struct sockaddr_in));
+		addr.sin_family = AF_INET;
+		addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+		addr.sin_port = htons(ports[i]);
+		err = bind(sfd[i], (struct sockaddr *)&addr, sizeof(addr));
+		if (err < 0) {
+			printf("failed to bind: err %i: %i:%i\n",
+			       err, i, sfd[i]);
+			goto out;
+		}
+		err = listen(sfd[i], 32);
+		if (err < 0) {
+			printf("failed to listen\n");
+			goto out;
+		}
+	}
+
+	for (i = 2; i < 4; i++) {
+		sfd[i] = socket(AF_INET, SOCK_STREAM, 0);
+		if (sfd[i] < 0)
+			goto out;
+		err = setsockopt(sfd[i], SOL_SOCKET, SO_REUSEADDR,
+				 (char *)&one, sizeof(one));
+		if (err) {
+			printf("set sock opt\n");
+			goto out;
+		}
+		memset(&addr, 0, sizeof(struct sockaddr_in));
+		addr.sin_family = AF_INET;
+		addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+		addr.sin_port = htons(ports[i - 2]);
+		err = connect(sfd[i], (struct sockaddr *)&addr, sizeof(addr));
+		if (err) {
+			printf("failed to connect\n");
+			goto out;
+		}
+	}
+
+
+	for (i = 4; i < 6; i++) {
+		sfd[i] = accept(sfd[i - 4], NULL, NULL);
+		if (sfd[i] < 0) {
+			printf("accept failed\n");
+			goto out;
+		}
+	}
+
+	/* Test sockmap with connected sockets */
+	fd = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL,
+			    sizeof(key), sizeof(value),
+			    6, NULL);
+	if (fd < 0) {
+		if (!libbpf_probe_bpf_map_type(BPF_MAP_TYPE_SOCKMAP, NULL)) {
+			printf("%s SKIP (unsupported map type BPF_MAP_TYPE_SOCKMAP)\n",
+			       __func__);
+			skips++;
+			for (i = 0; i < 6; i++)
+				close(sfd[i]);
+			return;
+		}
+
+		printf("Failed to create sockmap %i\n", fd);
+		goto out_sockmap;
+	}
+
+	/* Test update with unsupported UDP socket */
+	udp = socket(AF_INET, SOCK_DGRAM, 0);
+	i = 0;
+	err = bpf_map_update_elem(fd, &i, &udp, BPF_ANY);
+	if (err) {
+		printf("Failed socket update SOCK_DGRAM '%i:%i'\n",
+		       i, udp);
+		goto out_sockmap;
+	}
+	close(udp);
+
+	/* Test update without programs */
+	for (i = 0; i < 6; i++) {
+		err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+		if (err) {
+			printf("Failed noprog update sockmap '%i:%i'\n",
+			       i, sfd[i]);
+			goto out_sockmap;
+		}
+	}
+
+	/* Test attaching/detaching bad fds */
+	err = bpf_prog_attach(-1, fd, BPF_SK_SKB_STREAM_PARSER, 0);
+	if (!err) {
+		printf("Failed invalid parser prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(-1, fd, BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (!err) {
+		printf("Failed invalid verdict prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(-1, fd, BPF_SK_MSG_VERDICT, 0);
+	if (!err) {
+		printf("Failed invalid msg verdict prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(-1, fd, __MAX_BPF_ATTACH_TYPE, 0);
+	if (!err) {
+		printf("Failed unknown prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach(fd, BPF_SK_SKB_STREAM_PARSER);
+	if (!err) {
+		printf("Failed empty parser prog detach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach(fd, BPF_SK_SKB_STREAM_VERDICT);
+	if (!err) {
+		printf("Failed empty verdict prog detach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach(fd, BPF_SK_MSG_VERDICT);
+	if (!err) {
+		printf("Failed empty msg verdict prog detach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach(fd, __MAX_BPF_ATTACH_TYPE);
+	if (!err) {
+		printf("Detach invalid prog successful\n");
+		goto out_sockmap;
+	}
+
+	/* Load SK_SKB program and Attach */
+	err = bpf_prog_test_load(SOCKMAP_PARSE_PROG,
+			    BPF_PROG_TYPE_SK_SKB, &parse_obj, &parse_prog);
+	if (err) {
+		printf("Failed to load SK_SKB parse prog\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_test_load(SOCKMAP_TCP_MSG_PROG,
+			    BPF_PROG_TYPE_SK_MSG, &msg_obj, &msg_prog);
+	if (err) {
+		printf("Failed to load SK_SKB msg prog\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_test_load(SOCKMAP_VERDICT_PROG,
+			    BPF_PROG_TYPE_SK_SKB, &verdict_obj, &verdict_prog);
+	if (err) {
+		printf("Failed to load SK_SKB verdict prog\n");
+		goto out_sockmap;
+	}
+
+	bpf_map_rx = bpf_object__find_map_by_name(verdict_obj, "sock_map_rx");
+	if (!bpf_map_rx) {
+		printf("Failed to load map rx from verdict prog\n");
+		goto out_sockmap;
+	}
+
+	map_fd_rx = bpf_map__fd(bpf_map_rx);
+	if (map_fd_rx < 0) {
+		printf("Failed to get map rx fd\n");
+		goto out_sockmap;
+	}
+
+	bpf_map_tx = bpf_object__find_map_by_name(verdict_obj, "sock_map_tx");
+	if (!bpf_map_tx) {
+		printf("Failed to load map tx from verdict prog\n");
+		goto out_sockmap;
+	}
+
+	map_fd_tx = bpf_map__fd(bpf_map_tx);
+	if (map_fd_tx < 0) {
+		printf("Failed to get map tx fd\n");
+		goto out_sockmap;
+	}
+
+	bpf_map_msg = bpf_object__find_map_by_name(verdict_obj, "sock_map_msg");
+	if (!bpf_map_msg) {
+		printf("Failed to load map msg from msg_verdict prog\n");
+		goto out_sockmap;
+	}
+
+	map_fd_msg = bpf_map__fd(bpf_map_msg);
+	if (map_fd_msg < 0) {
+		printf("Failed to get map msg fd\n");
+		goto out_sockmap;
+	}
+
+	bpf_map_break = bpf_object__find_map_by_name(verdict_obj, "sock_map_break");
+	if (!bpf_map_break) {
+		printf("Failed to load map tx from verdict prog\n");
+		goto out_sockmap;
+	}
+
+	map_fd_break = bpf_map__fd(bpf_map_break);
+	if (map_fd_break < 0) {
+		printf("Failed to get map tx fd\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(parse_prog, map_fd_break,
+			      BPF_SK_SKB_STREAM_PARSER, 0);
+	if (!err) {
+		printf("Allowed attaching SK_SKB program to invalid map\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(parse_prog, map_fd_rx,
+		      BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err) {
+		printf("Failed stream parser bpf prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(verdict_prog, map_fd_rx,
+			      BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err) {
+		printf("Failed stream verdict bpf prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(msg_prog, map_fd_msg, BPF_SK_MSG_VERDICT, 0);
+	if (err) {
+		printf("Failed msg verdict bpf prog attach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_attach(verdict_prog, map_fd_rx,
+			      __MAX_BPF_ATTACH_TYPE, 0);
+	if (!err) {
+		printf("Attached unknown bpf prog\n");
+		goto out_sockmap;
+	}
+
+	/* Test map update elem afterwards fd lives in fd and map_fd */
+	for (i = 2; i < 6; i++) {
+		err = bpf_map_update_elem(map_fd_rx, &i, &sfd[i], BPF_ANY);
+		if (err) {
+			printf("Failed map_fd_rx update sockmap %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+		err = bpf_map_update_elem(map_fd_tx, &i, &sfd[i], BPF_ANY);
+		if (err) {
+			printf("Failed map_fd_tx update sockmap %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+	}
+
+	/* Test map delete elem and remove send/recv sockets */
+	for (i = 2; i < 4; i++) {
+		err = bpf_map_delete_elem(map_fd_rx, &i);
+		if (err) {
+			printf("Failed delete sockmap rx %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+		err = bpf_map_delete_elem(map_fd_tx, &i);
+		if (err) {
+			printf("Failed delete sockmap tx %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+	}
+
+	/* Put sfd[2] (sending fd below) into msg map to test sendmsg bpf */
+	i = 0;
+	err = bpf_map_update_elem(map_fd_msg, &i, &sfd[2], BPF_ANY);
+	if (err) {
+		printf("Failed map_fd_msg update sockmap %i\n", err);
+		goto out_sockmap;
+	}
+
+	/* Test map send/recv */
+	for (i = 0; i < 2; i++) {
+		buf[0] = i;
+		buf[1] = 0x5;
+		sc = send(sfd[2], buf, 20, 0);
+		if (sc < 0) {
+			printf("Failed sockmap send\n");
+			goto out_sockmap;
+		}
+
+		FD_ZERO(&w);
+		FD_SET(sfd[3], &w);
+		to.tv_sec = 30;
+		to.tv_usec = 0;
+		s = select(sfd[3] + 1, &w, NULL, NULL, &to);
+		if (s == -1) {
+			perror("Failed sockmap select()");
+			goto out_sockmap;
+		} else if (!s) {
+			printf("Failed sockmap unexpected timeout\n");
+			goto out_sockmap;
+		}
+
+		if (!FD_ISSET(sfd[3], &w)) {
+			printf("Failed sockmap select/recv\n");
+			goto out_sockmap;
+		}
+
+		rc = recv(sfd[3], buf, sizeof(buf), 0);
+		if (rc < 0) {
+			printf("Failed sockmap recv\n");
+			goto out_sockmap;
+		}
+	}
+
+	/* Negative null entry lookup from datapath should be dropped */
+	buf[0] = 1;
+	buf[1] = 12;
+	sc = send(sfd[2], buf, 20, 0);
+	if (sc < 0) {
+		printf("Failed sockmap send\n");
+		goto out_sockmap;
+	}
+
+	/* Push fd into same slot */
+	i = 2;
+	err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_NOEXIST);
+	if (!err) {
+		printf("Failed allowed sockmap dup slot BPF_NOEXIST\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+	if (err) {
+		printf("Failed sockmap update new slot BPF_ANY\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_EXIST);
+	if (err) {
+		printf("Failed sockmap update new slot BPF_EXIST\n");
+		goto out_sockmap;
+	}
+
+	/* Delete the elems without programs */
+	for (i = 2; i < 6; i++) {
+		err = bpf_map_delete_elem(fd, &i);
+		if (err) {
+			printf("Failed delete sockmap %i '%i:%i'\n",
+			       err, i, sfd[i]);
+		}
+	}
+
+	/* Test having multiple maps open and set with programs on same fds */
+	err = bpf_prog_attach(parse_prog, fd,
+			      BPF_SK_SKB_STREAM_PARSER, 0);
+	if (err) {
+		printf("Failed fd bpf parse prog attach\n");
+		goto out_sockmap;
+	}
+	err = bpf_prog_attach(verdict_prog, fd,
+			      BPF_SK_SKB_STREAM_VERDICT, 0);
+	if (err) {
+		printf("Failed fd bpf verdict prog attach\n");
+		goto out_sockmap;
+	}
+
+	for (i = 4; i < 6; i++) {
+		err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
+		if (!err) {
+			printf("Failed allowed duplicate programs in update ANY sockmap %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+		err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_NOEXIST);
+		if (!err) {
+			printf("Failed allowed duplicate program in update NOEXIST sockmap  %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+		err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_EXIST);
+		if (!err) {
+			printf("Failed allowed duplicate program in update EXIST sockmap  %i '%i:%i'\n",
+			       err, i, sfd[i]);
+			goto out_sockmap;
+		}
+	}
+
+	/* Test tasks number of forked operations */
+	for (i = 0; i < tasks; i++) {
+		pid[i] = fork();
+		if (pid[i] == 0) {
+			for (i = 0; i < 6; i++) {
+				bpf_map_delete_elem(map_fd_tx, &i);
+				bpf_map_delete_elem(map_fd_rx, &i);
+				bpf_map_update_elem(map_fd_tx, &i,
+						    &sfd[i], BPF_ANY);
+				bpf_map_update_elem(map_fd_rx, &i,
+						    &sfd[i], BPF_ANY);
+			}
+			exit(0);
+		} else if (pid[i] == -1) {
+			printf("Couldn't spawn #%d process!\n", i);
+			exit(1);
+		}
+	}
+
+	for (i = 0; i < tasks; i++) {
+		int status;
+
+		assert(waitpid(pid[i], &status, 0) == pid[i]);
+		assert(status == 0);
+	}
+
+	err = bpf_prog_detach2(parse_prog, map_fd_rx, __MAX_BPF_ATTACH_TYPE);
+	if (!err) {
+		printf("Detached an invalid prog type.\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach2(parse_prog, map_fd_rx, BPF_SK_SKB_STREAM_PARSER);
+	if (err) {
+		printf("Failed parser prog detach\n");
+		goto out_sockmap;
+	}
+
+	err = bpf_prog_detach2(verdict_prog, map_fd_rx, BPF_SK_SKB_STREAM_VERDICT);
+	if (err) {
+		printf("Failed parser prog detach\n");
+		goto out_sockmap;
+	}
+
+	/* Test map close sockets and empty maps */
+	for (i = 0; i < 6; i++) {
+		bpf_map_delete_elem(map_fd_tx, &i);
+		bpf_map_delete_elem(map_fd_rx, &i);
+		close(sfd[i]);
+	}
+	close(fd);
+	close(map_fd_rx);
+	bpf_object__close(parse_obj);
+	bpf_object__close(msg_obj);
+	bpf_object__close(verdict_obj);
+	return;
+out:
+	for (i = 0; i < 6; i++)
+		close(sfd[i]);
+	printf("Failed to create sockmap '%i:%s'!\n", i, strerror(errno));
+	exit(1);
+out_sockmap:
+	for (i = 0; i < 6; i++) {
+		if (map_fd_tx)
+			bpf_map_delete_elem(map_fd_tx, &i);
+		if (map_fd_rx)
+			bpf_map_delete_elem(map_fd_rx, &i);
+		close(sfd[i]);
+	}
+	close(fd);
+	exit(1);
+}
+
+#define MAPINMAP_PROG "./test_map_in_map.bpf.o"
+#define MAPINMAP_INVALID_PROG "./test_map_in_map_invalid.bpf.o"
+static void test_map_in_map(void)
+{
+	struct bpf_object *obj;
+	struct bpf_map *map;
+	int mim_fd, fd, err;
+	int pos = 0;
+	struct bpf_map_info info = {};
+	__u32 len = sizeof(info);
+	__u32 id = 0;
+	libbpf_print_fn_t old_print_fn;
+
+	obj = bpf_object__open(MAPINMAP_PROG);
+
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(int), sizeof(int), 2, NULL);
+	if (fd < 0) {
+		printf("Failed to create hashmap '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	map = bpf_object__find_map_by_name(obj, "mim_array");
+	if (!map) {
+		printf("Failed to load array of maps from test prog\n");
+		goto out_map_in_map;
+	}
+	err = bpf_map__set_inner_map_fd(map, fd);
+	if (err) {
+		printf("Failed to set inner_map_fd for array of maps\n");
+		goto out_map_in_map;
+	}
+
+	map = bpf_object__find_map_by_name(obj, "mim_hash");
+	if (!map) {
+		printf("Failed to load hash of maps from test prog\n");
+		goto out_map_in_map;
+	}
+	err = bpf_map__set_inner_map_fd(map, fd);
+	if (err) {
+		printf("Failed to set inner_map_fd for hash of maps\n");
+		goto out_map_in_map;
+	}
+
+	err = bpf_object__load(obj);
+	if (err) {
+		printf("Failed to load test prog\n");
+		goto out_map_in_map;
+	}
+
+	map = bpf_object__find_map_by_name(obj, "mim_array");
+	if (!map) {
+		printf("Failed to load array of maps from test prog\n");
+		goto out_map_in_map;
+	}
+	mim_fd = bpf_map__fd(map);
+	if (mim_fd < 0) {
+		printf("Failed to get descriptor for array of maps\n");
+		goto out_map_in_map;
+	}
+
+	err = bpf_map_update_elem(mim_fd, &pos, &fd, 0);
+	if (err) {
+		printf("Failed to update array of maps\n");
+		goto out_map_in_map;
+	}
+
+	map = bpf_object__find_map_by_name(obj, "mim_hash");
+	if (!map) {
+		printf("Failed to load hash of maps from test prog\n");
+		goto out_map_in_map;
+	}
+	mim_fd = bpf_map__fd(map);
+	if (mim_fd < 0) {
+		printf("Failed to get descriptor for hash of maps\n");
+		goto out_map_in_map;
+	}
+
+	err = bpf_map_update_elem(mim_fd, &pos, &fd, 0);
+	if (err) {
+		printf("Failed to update hash of maps\n");
+		goto out_map_in_map;
+	}
+
+	close(fd);
+	fd = -1;
+	bpf_object__close(obj);
+
+	/* Test that failing bpf_object__create_map() destroys the inner map */
+	obj = bpf_object__open(MAPINMAP_INVALID_PROG);
+	err = libbpf_get_error(obj);
+	if (err) {
+		printf("Failed to load %s program: %d %d",
+		       MAPINMAP_INVALID_PROG, err, errno);
+		goto out_map_in_map;
+	}
+
+	map = bpf_object__find_map_by_name(obj, "mim");
+	if (!map) {
+		printf("Failed to load array of maps from test prog\n");
+		goto out_map_in_map;
+	}
+
+	old_print_fn = libbpf_set_print(NULL);
+
+	err = bpf_object__load(obj);
+	if (!err) {
+		printf("Loading obj supposed to fail\n");
+		goto out_map_in_map;
+	}
+
+	libbpf_set_print(old_print_fn);
+
+	/* Iterate over all maps to check whether the internal map
+	 * ("mim.internal") has been destroyed.
+	 */
+	while (true) {
+		err = bpf_map_get_next_id(id, &id);
+		if (err) {
+			if (errno == ENOENT)
+				break;
+			printf("Failed to get next map: %d", errno);
+			goto out_map_in_map;
+		}
+
+		fd = bpf_map_get_fd_by_id(id);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				continue;
+			printf("Failed to get map by id %u: %d", id, errno);
+			goto out_map_in_map;
+		}
+
+		err = bpf_map_get_info_by_fd(fd, &info, &len);
+		if (err) {
+			printf("Failed to get map info by fd %d: %d", fd,
+			       errno);
+			goto out_map_in_map;
+		}
+
+		if (!strcmp(info.name, "mim.inner")) {
+			printf("Inner map mim.inner was not destroyed\n");
+			goto out_map_in_map;
+		}
+
+		close(fd);
+	}
+
+	bpf_object__close(obj);
+	return;
+
+out_map_in_map:
+	if (fd >= 0)
+		close(fd);
+	exit(1);
+}
+
+#define MAP_SIZE (32 * 1024)
+
+static void test_map_large(void)
+{
+
+	struct bigkey {
+		int a;
+		char b[4096];
+		long long c;
+	} key;
+	int fd, i, value;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value),
+			    MAP_SIZE, &map_opts);
+	if (fd < 0) {
+		printf("Failed to create large map '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	for (i = 0; i < MAP_SIZE; i++) {
+		key = (struct bigkey) { .c = i };
+		value = i;
+
+		assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) == 0);
+	}
+
+	key.c = -1;
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       errno == E2BIG);
+
+	/* Iterate through all elements. */
+	assert(bpf_map_get_next_key(fd, NULL, &key) == 0);
+	key.c = -1;
+	for (i = 0; i < MAP_SIZE; i++)
+		assert(bpf_map_get_next_key(fd, &key, &key) == 0);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
+
+	key.c = 0;
+	assert(bpf_map_lookup_elem(fd, &key, &value) == 0 && value == 0);
+	key.a = 1;
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
+
+	close(fd);
+}
+
+#define run_parallel(N, FN, DATA) \
+	printf("Fork %u tasks to '" #FN "'\n", N); \
+	__run_parallel(N, FN, DATA)
+
+static void __run_parallel(unsigned int tasks,
+			   void (*fn)(unsigned int task, void *data),
+			   void *data)
+{
+	pid_t pid[tasks];
+	int i;
+
+	fflush(stdout);
+
+	for (i = 0; i < tasks; i++) {
+		pid[i] = fork();
+		if (pid[i] == 0) {
+			fn(i, data);
+			exit(0);
+		} else if (pid[i] == -1) {
+			printf("Couldn't spawn #%d process!\n", i);
+			exit(1);
+		}
+	}
+
+	for (i = 0; i < tasks; i++) {
+		int status;
+
+		assert(waitpid(pid[i], &status, 0) == pid[i]);
+		assert(status == 0);
+	}
+}
+
+static void test_map_stress(void)
+{
+	run_parallel(100, test_hashmap_walk, NULL);
+	run_parallel(100, test_hashmap, NULL);
+	run_parallel(100, test_hashmap_percpu, NULL);
+	run_parallel(100, test_hashmap_sizes, NULL);
+
+	run_parallel(100, test_arraymap, NULL);
+	run_parallel(100, test_arraymap_percpu, NULL);
+}
+
+#define TASKS 100
+
+#define DO_UPDATE 1
+#define DO_DELETE 0
+
+#define MAP_RETRIES 20
+#define MAX_DELAY_US 50000
+#define MIN_DELAY_RANGE_US 5000
+
+static bool can_retry(int err)
+{
+	return (err == EAGAIN || err == EBUSY ||
+		((err == ENOMEM || err == E2BIG) &&
+		 map_opts.map_flags == BPF_F_NO_PREALLOC));
+}
+
+int map_update_retriable(int map_fd, const void *key, const void *value, int flags, int attempts,
+			 retry_for_error_fn need_retry)
+{
+	int delay = rand() % MIN_DELAY_RANGE_US;
+
+	while (bpf_map_update_elem(map_fd, key, value, flags)) {
+		if (!attempts || !need_retry(errno))
+			return -errno;
+
+		if (delay <= MAX_DELAY_US / 2)
+			delay *= 2;
+
+		usleep(delay);
+		attempts--;
+	}
+
+	return 0;
+}
+
+static int map_delete_retriable(int map_fd, const void *key, int attempts)
+{
+	int delay = rand() % MIN_DELAY_RANGE_US;
+
+	while (bpf_map_delete_elem(map_fd, key)) {
+		if (!attempts || (errno != EAGAIN && errno != EBUSY))
+			return -errno;
+
+		if (delay <= MAX_DELAY_US / 2)
+			delay *= 2;
+
+		usleep(delay);
+		attempts--;
+	}
+
+	return 0;
+}
+
+static void test_update_delete(unsigned int fn, void *data)
+{
+	int do_update = ((int *)data)[1];
+	int fd = ((int *)data)[0];
+	int i, key, value, err;
+
+	if (fn & 1)
+		test_hashmap_walk(fn, NULL);
+	for (i = fn; i < MAP_SIZE; i += TASKS) {
+		key = value = i;
+
+		if (do_update) {
+			err = map_update_retriable(fd, &key, &value, BPF_NOEXIST, MAP_RETRIES,
+						   can_retry);
+			if (err)
+				printf("error %d %d\n", err, errno);
+			assert(err == 0);
+			err = map_update_retriable(fd, &key, &value, BPF_EXIST, MAP_RETRIES,
+						   can_retry);
+			if (err)
+				printf("error %d %d\n", err, errno);
+			assert(err == 0);
+		} else {
+			err = map_delete_retriable(fd, &key, MAP_RETRIES);
+			if (err)
+				printf("error %d %d\n", err, errno);
+			assert(err == 0);
+		}
+	}
+}
+
+static void test_map_parallel(void)
+{
+	int i, fd, key = 0, value = 0, j = 0;
+	int data[2];
+
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value),
+			    MAP_SIZE, &map_opts);
+	if (fd < 0) {
+		printf("Failed to create map for parallel test '%s'!\n",
+		       strerror(errno));
+		exit(1);
+	}
+
+again:
+	/* Use the same fd in children to add elements to this map:
+	 * child_0 adds key=0, key=1024, key=2048, ...
+	 * child_1 adds key=1, key=1025, key=2049, ...
+	 * child_1023 adds key=1023, ...
+	 */
+	data[0] = fd;
+	data[1] = DO_UPDATE;
+	run_parallel(TASKS, test_update_delete, data);
+
+	/* Check that key=0 is already there. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_NOEXIST) < 0 &&
+	       errno == EEXIST);
+
+	/* Check that all elements were inserted. */
+	assert(bpf_map_get_next_key(fd, NULL, &key) == 0);
+	key = -1;
+	for (i = 0; i < MAP_SIZE; i++)
+		assert(bpf_map_get_next_key(fd, &key, &key) == 0);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
+
+	/* Another check for all elements */
+	for (i = 0; i < MAP_SIZE; i++) {
+		key = MAP_SIZE - i - 1;
+
+		assert(bpf_map_lookup_elem(fd, &key, &value) == 0 &&
+		       value == key);
+	}
+
+	/* Now let's delete all elements in parallel. */
+	data[1] = DO_DELETE;
+	run_parallel(TASKS, test_update_delete, data);
+
+	/* Nothing should be left. */
+	key = -1;
+	assert(bpf_map_get_next_key(fd, NULL, &key) < 0 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &key) < 0 && errno == ENOENT);
+
+	key = 0;
+	bpf_map_delete_elem(fd, &key);
+	if (j++ < 5)
+		goto again;
+	close(fd);
+}
+
+static void test_map_rdonly(void)
+{
+	int fd, key = 0, value = 0;
+	__u32 old_flags;
+
+	old_flags = map_opts.map_flags;
+	map_opts.map_flags |= BPF_F_RDONLY;
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value),
+			    MAP_SIZE, &map_opts);
+	map_opts.map_flags = old_flags;
+	if (fd < 0) {
+		printf("Failed to create map for read only test '%s'!\n",
+		       strerror(errno));
+		exit(1);
+	}
+
+	key = 1;
+	value = 1234;
+	/* Try to insert key=1 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) < 0 &&
+	       errno == EPERM);
+
+	/* Check that key=1 is not found. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == ENOENT);
+	assert(bpf_map_get_next_key(fd, &key, &value) < 0 && errno == ENOENT);
+
+	close(fd);
+}
+
+static void test_map_wronly_hash(void)
+{
+	int fd, key = 0, value = 0;
+	__u32 old_flags;
+
+	old_flags = map_opts.map_flags;
+	map_opts.map_flags |= BPF_F_WRONLY;
+	fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(key), sizeof(value),
+			    MAP_SIZE, &map_opts);
+	map_opts.map_flags = old_flags;
+	if (fd < 0) {
+		printf("Failed to create map for write only test '%s'!\n",
+		       strerror(errno));
+		exit(1);
+	}
+
+	key = 1;
+	value = 1234;
+	/* Insert key=1 element. */
+	assert(bpf_map_update_elem(fd, &key, &value, BPF_ANY) == 0);
+
+	/* Check that reading elements and keys from the map is not allowed. */
+	assert(bpf_map_lookup_elem(fd, &key, &value) < 0 && errno == EPERM);
+	assert(bpf_map_get_next_key(fd, &key, &value) < 0 && errno == EPERM);
+
+	close(fd);
+}
+
+static void test_map_wronly_stack_or_queue(enum bpf_map_type map_type)
+{
+	int fd, value = 0;
+	__u32 old_flags;
+
+
+	assert(map_type == BPF_MAP_TYPE_QUEUE ||
+	       map_type == BPF_MAP_TYPE_STACK);
+	old_flags = map_opts.map_flags;
+	map_opts.map_flags |= BPF_F_WRONLY;
+	fd = bpf_map_create(map_type, NULL, 0, sizeof(value), MAP_SIZE, &map_opts);
+	map_opts.map_flags = old_flags;
+	/* Stack/Queue maps do not support BPF_F_NO_PREALLOC */
+	if (map_opts.map_flags & BPF_F_NO_PREALLOC) {
+		assert(fd < 0 && errno == EINVAL);
+		return;
+	}
+	if (fd < 0) {
+		printf("Failed to create map '%s'!\n", strerror(errno));
+		exit(1);
+	}
+
+	value = 1234;
+	assert(bpf_map_update_elem(fd, NULL, &value, BPF_ANY) == 0);
+
+	/* Peek element should fail */
+	assert(bpf_map_lookup_elem(fd, NULL, &value) < 0 && errno == EPERM);
+
+	/* Pop element should fail */
+	assert(bpf_map_lookup_and_delete_elem(fd, NULL, &value) < 0 &&
+	       errno == EPERM);
+
+	close(fd);
+}
+
+static void test_map_wronly(void)
+{
+	test_map_wronly_hash();
+	test_map_wronly_stack_or_queue(BPF_MAP_TYPE_STACK);
+	test_map_wronly_stack_or_queue(BPF_MAP_TYPE_QUEUE);
+}
+
+static void prepare_reuseport_grp(int type, int map_fd, size_t map_elem_size,
+				  __s64 *fds64, __u64 *sk_cookies,
+				  unsigned int n)
+{
+	socklen_t optlen, addrlen;
+	struct sockaddr_in6 s6;
+	const __u32 index0 = 0;
+	const int optval = 1;
+	unsigned int i;
+	u64 sk_cookie;
+	void *value;
+	__s32 fd32;
+	__s64 fd64;
+	int err;
+
+	s6.sin6_family = AF_INET6;
+	s6.sin6_addr = in6addr_any;
+	s6.sin6_port = 0;
+	addrlen = sizeof(s6);
+	optlen = sizeof(sk_cookie);
+
+	for (i = 0; i < n; i++) {
+		fd64 = socket(AF_INET6, type, 0);
+		CHECK(fd64 == -1, "socket()",
+		      "sock_type:%d fd64:%lld errno:%d\n",
+		      type, fd64, errno);
+
+		err = setsockopt(fd64, SOL_SOCKET, SO_REUSEPORT,
+				 &optval, sizeof(optval));
+		CHECK(err == -1, "setsockopt(SO_REUSEPORT)",
+		      "err:%d errno:%d\n", err, errno);
+
+		/* reuseport_array does not allow unbound sk */
+		if (map_elem_size == sizeof(__u64))
+			value = &fd64;
+		else {
+			assert(map_elem_size == sizeof(__u32));
+			fd32 = (__s32)fd64;
+			value = &fd32;
+		}
+		err = bpf_map_update_elem(map_fd, &index0, value, BPF_ANY);
+		CHECK(err >= 0 || errno != EINVAL,
+		      "reuseport array update unbound sk",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+
+		err = bind(fd64, (struct sockaddr *)&s6, sizeof(s6));
+		CHECK(err == -1, "bind()",
+		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
+
+		if (i == 0) {
+			err = getsockname(fd64, (struct sockaddr *)&s6,
+					  &addrlen);
+			CHECK(err == -1, "getsockname()",
+			      "sock_type:%d err:%d errno:%d\n",
+			      type, err, errno);
+		}
+
+		err = getsockopt(fd64, SOL_SOCKET, SO_COOKIE, &sk_cookie,
+				 &optlen);
+		CHECK(err == -1, "getsockopt(SO_COOKIE)",
+		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
+
+		if (type == SOCK_STREAM) {
+			/*
+			 * reuseport_array does not allow
+			 * non-listening tcp sk.
+			 */
+			err = bpf_map_update_elem(map_fd, &index0, value,
+						  BPF_ANY);
+			CHECK(err >= 0 || errno != EINVAL,
+			      "reuseport array update non-listening sk",
+			      "sock_type:%d err:%d errno:%d\n",
+			      type, err, errno);
+			err = listen(fd64, 0);
+			CHECK(err == -1, "listen()",
+			      "sock_type:%d, err:%d errno:%d\n",
+			      type, err, errno);
+		}
+
+		fds64[i] = fd64;
+		sk_cookies[i] = sk_cookie;
+	}
+}
+
+static void test_reuseport_array(void)
+{
+#define REUSEPORT_FD_IDX(err, last) ({ (err) ? last : !last; })
+
+	const __u32 array_size = 4, index0 = 0, index3 = 3;
+	int types[2] = { SOCK_STREAM, SOCK_DGRAM }, type;
+	__u64 grpa_cookies[2], sk_cookie, map_cookie;
+	__s64 grpa_fds64[2] = { -1, -1 }, fd64 = -1;
+	const __u32 bad_index = array_size;
+	int map_fd, err, t, f;
+	__u32 fds_idx = 0;
+	int fd;
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY, NULL,
+				sizeof(__u32), sizeof(__u64), array_size, NULL);
+	CHECK(map_fd < 0, "reuseport array create",
+	      "map_fd:%d, errno:%d\n", map_fd, errno);
+
+	/* Test lookup/update/delete with invalid index */
+	err = bpf_map_delete_elem(map_fd, &bad_index);
+	CHECK(err >= 0 || errno != E2BIG, "reuseport array del >=max_entries",
+	      "err:%d errno:%d\n", err, errno);
+
+	err = bpf_map_update_elem(map_fd, &bad_index, &fd64, BPF_ANY);
+	CHECK(err >= 0 || errno != E2BIG,
+	      "reuseport array update >=max_entries",
+	      "err:%d errno:%d\n", err, errno);
+
+	err = bpf_map_lookup_elem(map_fd, &bad_index, &map_cookie);
+	CHECK(err >= 0 || errno != ENOENT,
+	      "reuseport array update >=max_entries",
+	      "err:%d errno:%d\n", err, errno);
+
+	/* Test lookup/delete non existence elem */
+	err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
+	CHECK(err >= 0 || errno != ENOENT,
+	      "reuseport array lookup not-exist elem",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_delete_elem(map_fd, &index3);
+	CHECK(err >= 0 || errno != ENOENT,
+	      "reuseport array del not-exist elem",
+	      "err:%d errno:%d\n", err, errno);
+
+	for (t = 0; t < ARRAY_SIZE(types); t++) {
+		type = types[t];
+
+		prepare_reuseport_grp(type, map_fd, sizeof(__u64), grpa_fds64,
+				      grpa_cookies, ARRAY_SIZE(grpa_fds64));
+
+		/* Test BPF_* update flags */
+		/* BPF_EXIST failure case */
+		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
+					  BPF_EXIST);
+		CHECK(err >= 0 || errno != ENOENT,
+		      "reuseport array update empty elem BPF_EXIST",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+		fds_idx = REUSEPORT_FD_IDX(err, fds_idx);
+
+		/* BPF_NOEXIST success case */
+		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
+					  BPF_NOEXIST);
+		CHECK(err < 0,
+		      "reuseport array update empty elem BPF_NOEXIST",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+		fds_idx = REUSEPORT_FD_IDX(err, fds_idx);
+
+		/* BPF_EXIST success case. */
+		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
+					  BPF_EXIST);
+		CHECK(err < 0,
+		      "reuseport array update same elem BPF_EXIST",
+		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
+		fds_idx = REUSEPORT_FD_IDX(err, fds_idx);
+
+		/* BPF_NOEXIST failure case */
+		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
+					  BPF_NOEXIST);
+		CHECK(err >= 0 || errno != EEXIST,
+		      "reuseport array update non-empty elem BPF_NOEXIST",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+		fds_idx = REUSEPORT_FD_IDX(err, fds_idx);
+
+		/* BPF_ANY case (always succeed) */
+		err = bpf_map_update_elem(map_fd, &index3, &grpa_fds64[fds_idx],
+					  BPF_ANY);
+		CHECK(err < 0,
+		      "reuseport array update same sk with BPF_ANY",
+		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
+
+		fd64 = grpa_fds64[fds_idx];
+		sk_cookie = grpa_cookies[fds_idx];
+
+		/* The same sk cannot be added to reuseport_array twice */
+		err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_ANY);
+		CHECK(err >= 0 || errno != EBUSY,
+		      "reuseport array update same sk with same index",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+
+		err = bpf_map_update_elem(map_fd, &index0, &fd64, BPF_ANY);
+		CHECK(err >= 0 || errno != EBUSY,
+		      "reuseport array update same sk with different index",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+
+		/* Test delete elem */
+		err = bpf_map_delete_elem(map_fd, &index3);
+		CHECK(err < 0, "reuseport array delete sk",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+
+		/* Add it back with BPF_NOEXIST */
+		err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_NOEXIST);
+		CHECK(err < 0,
+		      "reuseport array re-add with BPF_NOEXIST after del",
+		      "sock_type:%d err:%d errno:%d\n", type, err, errno);
+
+		/* Test cookie */
+		err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
+		CHECK(err < 0 || sk_cookie != map_cookie,
+		      "reuseport array lookup re-added sk",
+		      "sock_type:%d err:%d errno:%d sk_cookie:0x%llx map_cookie:0x%llxn",
+		      type, err, errno, sk_cookie, map_cookie);
+
+		/* Test elem removed by close() */
+		for (f = 0; f < ARRAY_SIZE(grpa_fds64); f++)
+			close(grpa_fds64[f]);
+		err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
+		CHECK(err >= 0 || errno != ENOENT,
+		      "reuseport array lookup after close()",
+		      "sock_type:%d err:%d errno:%d\n",
+		      type, err, errno);
+	}
+
+	/* Test SOCK_RAW */
+	fd64 = socket(AF_INET6, SOCK_RAW, IPPROTO_UDP);
+	CHECK(fd64 == -1, "socket(SOCK_RAW)", "err:%d errno:%d\n",
+	      err, errno);
+	err = bpf_map_update_elem(map_fd, &index3, &fd64, BPF_NOEXIST);
+	CHECK(err >= 0 || errno != ENOTSUPP, "reuseport array update SOCK_RAW",
+	      "err:%d errno:%d\n", err, errno);
+	close(fd64);
+
+	/* Close the 64 bit value map */
+	close(map_fd);
+
+	/* Test 32 bit fd */
+	map_fd = bpf_map_create(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY, NULL,
+				sizeof(__u32), sizeof(__u32), array_size, NULL);
+	CHECK(map_fd < 0, "reuseport array create",
+	      "map_fd:%d, errno:%d\n", map_fd, errno);
+	prepare_reuseport_grp(SOCK_STREAM, map_fd, sizeof(__u32), &fd64,
+			      &sk_cookie, 1);
+	fd = fd64;
+	err = bpf_map_update_elem(map_fd, &index3, &fd, BPF_NOEXIST);
+	CHECK(err < 0, "reuseport array update 32 bit fd",
+	      "err:%d errno:%d\n", err, errno);
+	err = bpf_map_lookup_elem(map_fd, &index3, &map_cookie);
+	CHECK(err >= 0 || errno != ENOSPC,
+	      "reuseport array lookup 32 bit fd",
+	      "err:%d errno:%d\n", err, errno);
+	close(fd);
+	close(map_fd);
+}
+
+static void run_all_tests(void)
+{
+	test_hashmap(0, NULL);
+	test_hashmap_percpu(0, NULL);
+	test_hashmap_walk(0, NULL);
+	test_hashmap_zero_seed();
+
+	test_arraymap(0, NULL);
+	test_arraymap_percpu(0, NULL);
+
+	test_arraymap_percpu_many_keys();
+
+	test_devmap(0, NULL);
+	test_devmap_hash(0, NULL);
+	test_sockmap(0, NULL);
+
+	test_map_large();
+	test_map_parallel();
+	test_map_stress();
+
+	test_map_rdonly();
+	test_map_wronly();
+
+	test_reuseport_array();
+
+	test_queuemap(0, NULL);
+	test_stackmap(0, NULL);
+
+	test_map_in_map();
+}
+
+#define DEFINE_TEST(name) extern void test_##name(void);
+#include <map_tests/tests.h>
+#undef DEFINE_TEST
+
+int main(void)
+{
+	srand(time(NULL));
+
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	map_opts.map_flags = 0;
+	run_all_tests();
+
+	map_opts.map_flags = BPF_F_NO_PREALLOC;
+	run_all_tests();
+
+#define DEFINE_TEST(name) test_##name();
+#include <map_tests/tests.h>
+#undef DEFINE_TEST
+
+	printf("test_maps: OK, %d SKIPPED\n", skips);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/test_maps.h b/tools/testing/selftests/bpf/test_maps.h
new file mode 100644
index 000000000000..e4ac704a536c
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_maps.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _TEST_MAPS_H
+#define _TEST_MAPS_H
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define CHECK(condition, tag, format...) ({				\
+	int __ret = !!(condition);					\
+	if (__ret) {							\
+		printf("%s(%d):FAIL:%s ", __func__, __LINE__, tag);	\
+		printf(format);						\
+		exit(-1);						\
+	}								\
+})
+
+extern int skips;
+
+typedef bool (*retry_for_error_fn)(int err);
+int map_update_retriable(int map_fd, const void *key, const void *value, int flags, int attempts,
+			 retry_for_error_fn need_retry);
+
+#endif
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
new file mode 100644
index 000000000000..02a85dda30e6
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -0,0 +1,2108 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2017 Facebook
+ */
+#define _GNU_SOURCE
+#include "test_progs.h"
+#include "testing_helpers.h"
+#include "cgroup_helpers.h"
+#include <argp.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/sysinfo.h> /* get_nprocs */
+#include <netinet/in.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <linux/keyctl.h>
+#include <sys/un.h>
+#include <bpf/btf.h>
+#include <time.h>
+#include "json_writer.h"
+
+#include "network_helpers.h"
+#include "verification_cert.h"
+
+/* backtrace() and backtrace_symbols_fd() are glibc specific,
+ * use header file when glibc is available and provide stub
+ * implementations when another libc implementation is used.
+ */
+#ifdef __GLIBC__
+#include <execinfo.h> /* backtrace */
+#else
+__weak int backtrace(void **buffer, int size)
+{
+	return 0;
+}
+
+__weak void backtrace_symbols_fd(void *const *buffer, int size, int fd)
+{
+	dprintf(fd, "<backtrace not supported>\n");
+}
+#endif /*__GLIBC__ */
+
+int env_verbosity = 0;
+
+static bool verbose(void)
+{
+	return env.verbosity > VERBOSE_NONE;
+}
+
+static void stdio_hijack_init(char **log_buf, size_t *log_cnt)
+{
+#ifdef __GLIBC__
+	if (verbose() && env.worker_id == -1) {
+		/* nothing to do, output to stdout by default */
+		return;
+	}
+
+	fflush(stdout);
+	fflush(stderr);
+
+	stdout = open_memstream(log_buf, log_cnt);
+	if (!stdout) {
+		stdout = env.stdout_saved;
+		perror("open_memstream");
+		return;
+	}
+
+	if (env.subtest_state)
+		env.subtest_state->stdout_saved = stdout;
+	else
+		env.test_state->stdout_saved = stdout;
+
+	stderr = stdout;
+#endif
+}
+
+static void stdio_hijack(char **log_buf, size_t *log_cnt)
+{
+#ifdef __GLIBC__
+	if (verbose() && env.worker_id == -1) {
+		/* nothing to do, output to stdout by default */
+		return;
+	}
+
+	env.stdout_saved = stdout;
+	env.stderr_saved = stderr;
+
+	stdio_hijack_init(log_buf, log_cnt);
+#endif
+}
+
+static pthread_mutex_t stdout_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void stdio_restore(void)
+{
+#ifdef __GLIBC__
+	if (verbose() && env.worker_id == -1) {
+		/* nothing to do, output to stdout by default */
+		return;
+	}
+
+	fflush(stdout);
+
+	pthread_mutex_lock(&stdout_lock);
+
+	if (env.subtest_state) {
+		if (env.subtest_state->stdout_saved)
+			fclose(env.subtest_state->stdout_saved);
+		env.subtest_state->stdout_saved = NULL;
+		stdout = env.test_state->stdout_saved;
+		stderr = env.test_state->stdout_saved;
+	} else {
+		if (env.test_state->stdout_saved)
+			fclose(env.test_state->stdout_saved);
+		env.test_state->stdout_saved = NULL;
+		stdout = env.stdout_saved;
+		stderr = env.stderr_saved;
+	}
+
+	pthread_mutex_unlock(&stdout_lock);
+#endif
+}
+
+static int traffic_monitor_print_fn(const char *format, va_list args)
+{
+	pthread_mutex_lock(&stdout_lock);
+	vfprintf(stdout, format, args);
+	pthread_mutex_unlock(&stdout_lock);
+
+	return 0;
+}
+
+/* Adapted from perf/util/string.c */
+static bool glob_match(const char *str, const char *pat)
+{
+	while (*str && *pat && *pat != '*') {
+		if (*str != *pat)
+			return false;
+		str++;
+		pat++;
+	}
+	/* Check wild card */
+	if (*pat == '*') {
+		while (*pat == '*')
+			pat++;
+		if (!*pat) /* Tail wild card matches all */
+			return true;
+		while (*str)
+			if (glob_match(str++, pat))
+				return true;
+	}
+	return !*str && !*pat;
+}
+
+#define EXIT_NO_TEST		2
+#define EXIT_ERR_SETUP_INFRA	3
+
+/* defined in test_progs.h */
+struct test_env env = {};
+
+struct prog_test_def {
+	const char *test_name;
+	int test_num;
+	void (*run_test)(void);
+	void (*run_serial_test)(void);
+	bool should_run;
+	bool need_cgroup_cleanup;
+	bool should_tmon;
+};
+
+/* Override C runtime library's usleep() implementation to ensure nanosleep()
+ * is always called. Usleep is frequently used in selftests as a way to
+ * trigger kprobe and tracepoints.
+ */
+int usleep(useconds_t usec)
+{
+	struct timespec ts = {
+		.tv_sec = usec / 1000000,
+		.tv_nsec = (usec % 1000000) * 1000,
+	};
+
+	return syscall(__NR_nanosleep, &ts, NULL);
+}
+
+/* Watchdog timer is started by watchdog_start() and stopped by watchdog_stop().
+ * If timer is active for longer than env.secs_till_notify,
+ * it prints the name of the current test to the stderr.
+ * If timer is active for longer than env.secs_till_kill,
+ * it kills the thread executing the test by sending a SIGSEGV signal to it.
+ */
+static void watchdog_timer_func(union sigval sigval)
+{
+	struct itimerspec timeout = {};
+	char test_name[256];
+	int err;
+
+	if (env.subtest_state)
+		snprintf(test_name, sizeof(test_name), "%s/%s",
+			 env.test->test_name, env.subtest_state->name);
+	else
+		snprintf(test_name, sizeof(test_name), "%s",
+			 env.test->test_name);
+
+	switch (env.watchdog_state) {
+	case WD_NOTIFY:
+		fprintf(env.stderr_saved, "WATCHDOG: test case %s executes for %d seconds...\n",
+			test_name, env.secs_till_notify);
+		timeout.it_value.tv_sec = env.secs_till_kill - env.secs_till_notify;
+		env.watchdog_state = WD_KILL;
+		err = timer_settime(env.watchdog, 0, &timeout, NULL);
+		if (err)
+			fprintf(env.stderr_saved, "Failed to arm watchdog timer\n");
+		break;
+	case WD_KILL:
+		fprintf(env.stderr_saved,
+			"WATCHDOG: test case %s executes for %d seconds, terminating with SIGSEGV\n",
+			test_name, env.secs_till_kill);
+		pthread_kill(env.main_thread, SIGSEGV);
+		break;
+	}
+}
+
+static void watchdog_start(void)
+{
+	struct itimerspec timeout = {};
+	int err;
+
+	if (env.secs_till_kill == 0)
+		return;
+	if (env.secs_till_notify > 0) {
+		env.watchdog_state = WD_NOTIFY;
+		timeout.it_value.tv_sec = env.secs_till_notify;
+	} else {
+		env.watchdog_state = WD_KILL;
+		timeout.it_value.tv_sec = env.secs_till_kill;
+	}
+	err = timer_settime(env.watchdog, 0, &timeout, NULL);
+	if (err)
+		fprintf(env.stderr_saved, "Failed to start watchdog timer\n");
+}
+
+static void watchdog_stop(void)
+{
+	struct itimerspec timeout = {};
+	int err;
+
+	env.watchdog_state = WD_NOTIFY;
+	err = timer_settime(env.watchdog, 0, &timeout, NULL);
+	if (err)
+		fprintf(env.stderr_saved, "Failed to stop watchdog timer\n");
+}
+
+static void watchdog_init(void)
+{
+	struct sigevent watchdog_sev = {
+		.sigev_notify = SIGEV_THREAD,
+		.sigev_notify_function = watchdog_timer_func,
+	};
+	int err;
+
+	env.main_thread = pthread_self();
+	err = timer_create(CLOCK_MONOTONIC, &watchdog_sev, &env.watchdog);
+	if (err)
+		fprintf(stderr, "Failed to initialize watchdog timer\n");
+}
+
+static bool should_run(struct test_selector *sel, int num, const char *name)
+{
+	int i;
+
+	for (i = 0; i < sel->blacklist.cnt; i++) {
+		if (glob_match(name, sel->blacklist.tests[i].name) &&
+		    !sel->blacklist.tests[i].subtest_cnt)
+			return false;
+	}
+
+	for (i = 0; i < sel->whitelist.cnt; i++) {
+		if (glob_match(name, sel->whitelist.tests[i].name))
+			return true;
+	}
+
+	if (!sel->whitelist.cnt && !sel->num_set)
+		return true;
+
+	return num < sel->num_set_len && sel->num_set[num];
+}
+
+static bool match_subtest(struct test_filter_set *filter,
+			  const char *test_name,
+			  const char *subtest_name)
+{
+	int i, j;
+
+	for (i = 0; i < filter->cnt; i++) {
+		if (glob_match(test_name, filter->tests[i].name)) {
+			if (!filter->tests[i].subtest_cnt)
+				return true;
+
+			for (j = 0; j < filter->tests[i].subtest_cnt; j++) {
+				if (glob_match(subtest_name,
+					       filter->tests[i].subtests[j]))
+					return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+static bool should_run_subtest(struct test_selector *sel,
+			       struct test_selector *subtest_sel,
+			       int subtest_num,
+			       const char *test_name,
+			       const char *subtest_name)
+{
+	if (match_subtest(&sel->blacklist, test_name, subtest_name))
+		return false;
+
+	if (match_subtest(&sel->whitelist, test_name, subtest_name))
+		return true;
+
+	if (!sel->whitelist.cnt && !subtest_sel->num_set)
+		return true;
+
+	return subtest_num < subtest_sel->num_set_len && subtest_sel->num_set[subtest_num];
+}
+
+static bool should_tmon(struct test_selector *sel, const char *name)
+{
+	int i;
+
+	for (i = 0; i < sel->whitelist.cnt; i++) {
+		if (glob_match(name, sel->whitelist.tests[i].name) &&
+		    !sel->whitelist.tests[i].subtest_cnt)
+			return true;
+	}
+
+	return false;
+}
+
+static char *test_result(bool failed, bool skipped)
+{
+	return failed ? "FAIL" : (skipped ? "SKIP" : "OK");
+}
+
+#define TEST_NUM_WIDTH 7
+
+static void print_test_result(const struct prog_test_def *test, const struct test_state *test_state)
+{
+	int skipped_cnt = test_state->skip_cnt;
+	int subtests_cnt = test_state->subtest_num;
+
+	fprintf(env.stdout_saved, "#%-*d %s:", TEST_NUM_WIDTH, test->test_num, test->test_name);
+	if (test_state->error_cnt)
+		fprintf(env.stdout_saved, "FAIL");
+	else if (!skipped_cnt)
+		fprintf(env.stdout_saved, "OK");
+	else if (skipped_cnt == subtests_cnt || !subtests_cnt)
+		fprintf(env.stdout_saved, "SKIP");
+	else
+		fprintf(env.stdout_saved, "OK (SKIP: %d/%d)", skipped_cnt, subtests_cnt);
+
+	fprintf(env.stdout_saved, "\n");
+}
+
+static void print_test_log(char *log_buf, size_t log_cnt)
+{
+	log_buf[log_cnt] = '\0';
+	fprintf(env.stdout_saved, "%s", log_buf);
+	if (log_buf[log_cnt - 1] != '\n')
+		fprintf(env.stdout_saved, "\n");
+}
+
+static void print_subtest_name(int test_num, int subtest_num,
+			       const char *test_name, char *subtest_name,
+			       char *result)
+{
+	char test_num_str[32];
+
+	snprintf(test_num_str, sizeof(test_num_str), "%d/%d", test_num, subtest_num);
+
+	fprintf(env.stdout_saved, "#%-*s %s/%s",
+		TEST_NUM_WIDTH, test_num_str,
+		test_name, subtest_name);
+
+	if (result)
+		fprintf(env.stdout_saved, ":%s", result);
+
+	fprintf(env.stdout_saved, "\n");
+}
+
+static void jsonw_write_log_message(json_writer_t *w, char *log_buf, size_t log_cnt)
+{
+	/* open_memstream (from stdio_hijack_init) ensures that log_bug is terminated by a
+	 * null byte. Yet in parallel mode, log_buf will be NULL if there is no message.
+	 */
+	if (log_cnt) {
+		jsonw_string_field(w, "message", log_buf);
+	} else {
+		jsonw_string_field(w, "message", "");
+	}
+}
+
+static void dump_test_log(const struct prog_test_def *test,
+			  const struct test_state *test_state,
+			  bool skip_ok_subtests,
+			  bool par_exec_result,
+			  json_writer_t *w)
+{
+	bool test_failed = test_state->error_cnt > 0;
+	bool force_log = test_state->force_log;
+	bool print_test = verbose() || force_log || test_failed;
+	int i;
+	struct subtest_state *subtest_state;
+	bool subtest_failed;
+	bool subtest_filtered;
+	bool print_subtest;
+
+	/* we do not print anything in the worker thread */
+	if (env.worker_id != -1)
+		return;
+
+	/* there is nothing to print when verbose log is used and execution
+	 * is not in parallel mode
+	 */
+	if (verbose() && !par_exec_result)
+		return;
+
+	if (test_state->log_cnt && print_test)
+		print_test_log(test_state->log_buf, test_state->log_cnt);
+
+	if (w && print_test) {
+		jsonw_start_object(w);
+		jsonw_string_field(w, "name", test->test_name);
+		jsonw_uint_field(w, "number", test->test_num);
+		jsonw_write_log_message(w, test_state->log_buf, test_state->log_cnt);
+		jsonw_bool_field(w, "failed", test_failed);
+		jsonw_name(w, "subtests");
+		jsonw_start_array(w);
+	}
+
+	for (i = 0; i < test_state->subtest_num; i++) {
+		subtest_state = &test_state->subtest_states[i];
+		subtest_failed = subtest_state->error_cnt;
+		subtest_filtered = subtest_state->filtered;
+		print_subtest = verbose() || force_log || subtest_failed;
+
+		if ((skip_ok_subtests && !subtest_failed) || subtest_filtered)
+			continue;
+
+		if (subtest_state->log_cnt && print_subtest) {
+			print_test_log(subtest_state->log_buf,
+				       subtest_state->log_cnt);
+		}
+
+		print_subtest_name(test->test_num, i + 1,
+				   test->test_name, subtest_state->name,
+				   test_result(subtest_state->error_cnt,
+					       subtest_state->skipped));
+
+		if (w && print_subtest) {
+			jsonw_start_object(w);
+			jsonw_string_field(w, "name", subtest_state->name);
+			jsonw_uint_field(w, "number", i+1);
+			jsonw_write_log_message(w, subtest_state->log_buf, subtest_state->log_cnt);
+			jsonw_bool_field(w, "failed", subtest_failed);
+			jsonw_end_object(w);
+		}
+	}
+
+	if (w && print_test) {
+		jsonw_end_array(w);
+		jsonw_end_object(w);
+	}
+
+	print_test_result(test, test_state);
+}
+
+/* A bunch of tests set custom affinity per-thread and/or per-process. Reset
+ * it after each test/sub-test.
+ */
+static void reset_affinity(void)
+{
+	cpu_set_t cpuset;
+	int i, err;
+
+	CPU_ZERO(&cpuset);
+	for (i = 0; i < env.nr_cpus; i++)
+		CPU_SET(i, &cpuset);
+
+	err = sched_setaffinity(0, sizeof(cpuset), &cpuset);
+	if (err < 0) {
+		fprintf(stderr, "Failed to reset process affinity: %d!\n", err);
+		exit(EXIT_ERR_SETUP_INFRA);
+	}
+	err = pthread_setaffinity_np(pthread_self(), sizeof(cpuset), &cpuset);
+	if (err < 0) {
+		fprintf(stderr, "Failed to reset thread affinity: %d!\n", err);
+		exit(EXIT_ERR_SETUP_INFRA);
+	}
+}
+
+static void save_netns(void)
+{
+	env.saved_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+	if (env.saved_netns_fd == -1) {
+		perror("open(/proc/self/ns/net)");
+		exit(EXIT_ERR_SETUP_INFRA);
+	}
+}
+
+static void restore_netns(void)
+{
+	if (setns(env.saved_netns_fd, CLONE_NEWNET) == -1) {
+		perror("setns(CLONE_NEWNS)");
+		exit(EXIT_ERR_SETUP_INFRA);
+	}
+}
+
+void test__end_subtest(void)
+{
+	struct prog_test_def *test = env.test;
+	struct test_state *test_state = env.test_state;
+	struct subtest_state *subtest_state = env.subtest_state;
+
+	if (subtest_state->error_cnt) {
+		test_state->error_cnt++;
+	} else {
+		if (!subtest_state->skipped)
+			test_state->sub_succ_cnt++;
+		else
+			test_state->skip_cnt++;
+	}
+
+	if (verbose() && !env.workers)
+		print_subtest_name(test->test_num, test_state->subtest_num,
+				   test->test_name, subtest_state->name,
+				   test_result(subtest_state->error_cnt,
+					       subtest_state->skipped));
+
+	stdio_restore();
+
+	env.subtest_state = NULL;
+}
+
+bool test__start_subtest(const char *subtest_name)
+{
+	struct prog_test_def *test = env.test;
+	struct test_state *state = env.test_state;
+	struct subtest_state *subtest_state;
+	size_t sub_state_size = sizeof(*subtest_state);
+
+	if (env.subtest_state)
+		test__end_subtest();
+
+	state->subtest_num++;
+	state->subtest_states =
+		realloc(state->subtest_states,
+			state->subtest_num * sub_state_size);
+	if (!state->subtest_states) {
+		fprintf(stderr, "Not enough memory to allocate subtest result\n");
+		return false;
+	}
+
+	subtest_state = &state->subtest_states[state->subtest_num - 1];
+
+	memset(subtest_state, 0, sub_state_size);
+
+	if (!subtest_name || !subtest_name[0]) {
+		fprintf(env.stderr_saved,
+			"Subtest #%d didn't provide sub-test name!\n",
+			state->subtest_num);
+		return false;
+	}
+
+	subtest_state->name = strdup(subtest_name);
+	if (!subtest_state->name) {
+		fprintf(env.stderr_saved,
+			"Subtest #%d: failed to copy subtest name!\n",
+			state->subtest_num);
+		return false;
+	}
+
+	if (!should_run_subtest(&env.test_selector,
+				&env.subtest_selector,
+				state->subtest_num,
+				test->test_name,
+				subtest_name)) {
+		subtest_state->filtered = true;
+		return false;
+	}
+
+	subtest_state->should_tmon = match_subtest(&env.tmon_selector.whitelist,
+						   test->test_name,
+						   subtest_name);
+
+	env.subtest_state = subtest_state;
+	stdio_hijack_init(&subtest_state->log_buf, &subtest_state->log_cnt);
+	watchdog_start();
+
+	return true;
+}
+
+void test__force_log(void)
+{
+	env.test_state->force_log = true;
+}
+
+void test__skip(void)
+{
+	if (env.subtest_state)
+		env.subtest_state->skipped = true;
+	else
+		env.test_state->skip_cnt++;
+}
+
+void test__fail(void)
+{
+	if (env.subtest_state)
+		env.subtest_state->error_cnt++;
+	else
+		env.test_state->error_cnt++;
+}
+
+int test__join_cgroup(const char *path)
+{
+	int fd;
+
+	if (!env.test->need_cgroup_cleanup) {
+		if (setup_cgroup_environment()) {
+			fprintf(stderr,
+				"#%d %s: Failed to setup cgroup environment\n",
+				env.test->test_num, env.test->test_name);
+			return -1;
+		}
+
+		env.test->need_cgroup_cleanup = true;
+	}
+
+	fd = create_and_get_cgroup(path);
+	if (fd < 0) {
+		fprintf(stderr,
+			"#%d %s: Failed to create cgroup '%s' (errno=%d)\n",
+			env.test->test_num, env.test->test_name, path, errno);
+		return fd;
+	}
+
+	if (join_cgroup(path)) {
+		fprintf(stderr,
+			"#%d %s: Failed to join cgroup '%s' (errno=%d)\n",
+			env.test->test_num, env.test->test_name, path, errno);
+		return -1;
+	}
+
+	return fd;
+}
+
+int bpf_find_map(const char *test, struct bpf_object *obj, const char *name)
+{
+	struct bpf_map *map;
+
+	map = bpf_object__find_map_by_name(obj, name);
+	if (!map) {
+		fprintf(stdout, "%s:FAIL:map '%s' not found\n", test, name);
+		test__fail();
+		return -1;
+	}
+	return bpf_map__fd(map);
+}
+
+int compare_map_keys(int map1_fd, int map2_fd)
+{
+	__u32 key, next_key;
+	char val_buf[PERF_MAX_STACK_DEPTH *
+		     sizeof(struct bpf_stack_build_id)];
+	int err;
+
+	err = bpf_map_get_next_key(map1_fd, NULL, &key);
+	if (err)
+		return err;
+	err = bpf_map_lookup_elem(map2_fd, &key, val_buf);
+	if (err)
+		return err;
+
+	while (bpf_map_get_next_key(map1_fd, &key, &next_key) == 0) {
+		err = bpf_map_lookup_elem(map2_fd, &next_key, val_buf);
+		if (err)
+			return err;
+
+		key = next_key;
+	}
+	if (errno != ENOENT)
+		return -1;
+
+	return 0;
+}
+
+int compare_stack_ips(int smap_fd, int amap_fd, int stack_trace_len)
+{
+	__u32 key, next_key, *cur_key_p, *next_key_p;
+	char *val_buf1, *val_buf2;
+	int i, err = 0;
+
+	val_buf1 = malloc(stack_trace_len);
+	val_buf2 = malloc(stack_trace_len);
+	cur_key_p = NULL;
+	next_key_p = &key;
+	while (bpf_map_get_next_key(smap_fd, cur_key_p, next_key_p) == 0) {
+		err = bpf_map_lookup_elem(smap_fd, next_key_p, val_buf1);
+		if (err)
+			goto out;
+		err = bpf_map_lookup_elem(amap_fd, next_key_p, val_buf2);
+		if (err)
+			goto out;
+		for (i = 0; i < stack_trace_len; i++) {
+			if (val_buf1[i] != val_buf2[i]) {
+				err = -1;
+				goto out;
+			}
+		}
+		key = *next_key_p;
+		cur_key_p = &key;
+		next_key_p = &next_key;
+	}
+	if (errno != ENOENT)
+		err = -1;
+
+out:
+	free(val_buf1);
+	free(val_buf2);
+	return err;
+}
+
+struct netns_obj {
+	char *nsname;
+	struct tmonitor_ctx *tmon;
+	struct nstoken *nstoken;
+};
+
+/* Create a new network namespace with the given name.
+ *
+ * Create a new network namespace and set the network namespace of the
+ * current process to the new network namespace if the argument "open" is
+ * true. This function should be paired with netns_free() to release the
+ * resource and delete the network namespace.
+ *
+ * It also implements the functionality of the option "-m" by starting
+ * traffic monitor on the background to capture the packets in this network
+ * namespace if the current test or subtest matching the pattern.
+ *
+ * nsname: the name of the network namespace to create.
+ * open: open the network namespace if true.
+ *
+ * Return: the network namespace object on success, NULL on failure.
+ */
+struct netns_obj *netns_new(const char *nsname, bool open)
+{
+	struct netns_obj *netns_obj = malloc(sizeof(*netns_obj));
+	const char *test_name, *subtest_name;
+	int r;
+
+	if (!netns_obj)
+		return NULL;
+	memset(netns_obj, 0, sizeof(*netns_obj));
+
+	netns_obj->nsname = strdup(nsname);
+	if (!netns_obj->nsname)
+		goto fail;
+
+	/* Create the network namespace */
+	r = make_netns(nsname);
+	if (r)
+		goto fail;
+
+	/* Start traffic monitor */
+	if (env.test->should_tmon ||
+	    (env.subtest_state && env.subtest_state->should_tmon)) {
+		test_name = env.test->test_name;
+		subtest_name = env.subtest_state ? env.subtest_state->name : NULL;
+		netns_obj->tmon = traffic_monitor_start(nsname, test_name, subtest_name);
+		if (!netns_obj->tmon) {
+			fprintf(stderr, "Failed to start traffic monitor for %s\n", nsname);
+			goto fail;
+		}
+	} else {
+		netns_obj->tmon = NULL;
+	}
+
+	if (open) {
+		netns_obj->nstoken = open_netns(nsname);
+		if (!netns_obj->nstoken)
+			goto fail;
+	}
+
+	return netns_obj;
+fail:
+	traffic_monitor_stop(netns_obj->tmon);
+	remove_netns(nsname);
+	free(netns_obj->nsname);
+	free(netns_obj);
+	return NULL;
+}
+
+/* Delete the network namespace.
+ *
+ * This function should be paired with netns_new() to delete the namespace
+ * created by netns_new().
+ */
+void netns_free(struct netns_obj *netns_obj)
+{
+	if (!netns_obj)
+		return;
+	traffic_monitor_stop(netns_obj->tmon);
+	close_netns(netns_obj->nstoken);
+	remove_netns(netns_obj->nsname);
+	free(netns_obj->nsname);
+	free(netns_obj);
+}
+
+/* extern declarations for test funcs */
+#define DEFINE_TEST(name)				\
+	extern void test_##name(void) __weak;		\
+	extern void serial_test_##name(void) __weak;
+#include <prog_tests/tests.h>
+#undef DEFINE_TEST
+
+static struct prog_test_def prog_test_defs[] = {
+#define DEFINE_TEST(name) {			\
+	.test_name = #name,			\
+	.run_test = &test_##name,		\
+	.run_serial_test = &serial_test_##name,	\
+},
+#include <prog_tests/tests.h>
+#undef DEFINE_TEST
+};
+
+static const int prog_test_cnt = ARRAY_SIZE(prog_test_defs);
+
+static struct test_state test_states[ARRAY_SIZE(prog_test_defs)];
+
+const char *argp_program_version = "test_progs 0.1";
+const char *argp_program_bug_address = "<bpf@vger.kernel.org>";
+static const char argp_program_doc[] =
+"BPF selftests test runner\v"
+"Options accepting the NAMES parameter take either a comma-separated list\n"
+"of test names, or a filename prefixed with @. The file contains one name\n"
+"(or wildcard pattern) per line, and comments beginning with # are ignored.\n"
+"\n"
+"These options can be passed repeatedly to read multiple files.\n";
+
+enum ARG_KEYS {
+	ARG_TEST_NUM = 'n',
+	ARG_TEST_NAME = 't',
+	ARG_TEST_NAME_BLACKLIST = 'b',
+	ARG_VERIFIER_STATS = 's',
+	ARG_VERBOSE = 'v',
+	ARG_GET_TEST_CNT = 'c',
+	ARG_LIST_TEST_NAMES = 'l',
+	ARG_TEST_NAME_GLOB_ALLOWLIST = 'a',
+	ARG_TEST_NAME_GLOB_DENYLIST = 'd',
+	ARG_NUM_WORKERS = 'j',
+	ARG_DEBUG = -1,
+	ARG_JSON_SUMMARY = 'J',
+	ARG_TRAFFIC_MONITOR = 'm',
+	ARG_WATCHDOG_TIMEOUT = 'w',
+};
+
+static const struct argp_option opts[] = {
+	{ "num", ARG_TEST_NUM, "NUM", 0,
+	  "Run test number NUM only " },
+	{ "name", ARG_TEST_NAME, "NAMES", 0,
+	  "Run tests with names containing any string from NAMES list" },
+	{ "name-blacklist", ARG_TEST_NAME_BLACKLIST, "NAMES", 0,
+	  "Don't run tests with names containing any string from NAMES list" },
+	{ "verifier-stats", ARG_VERIFIER_STATS, NULL, 0,
+	  "Output verifier statistics", },
+	{ "verbose", ARG_VERBOSE, "LEVEL", OPTION_ARG_OPTIONAL,
+	  "Verbose output (use -vv or -vvv for progressively verbose output)" },
+	{ "count", ARG_GET_TEST_CNT, NULL, 0,
+	  "Get number of selected top-level tests " },
+	{ "list", ARG_LIST_TEST_NAMES, NULL, 0,
+	  "List test names that would run (without running them) " },
+	{ "allow", ARG_TEST_NAME_GLOB_ALLOWLIST, "NAMES", 0,
+	  "Run tests with name matching the pattern (supports '*' wildcard)." },
+	{ "deny", ARG_TEST_NAME_GLOB_DENYLIST, "NAMES", 0,
+	  "Don't run tests with name matching the pattern (supports '*' wildcard)." },
+	{ "workers", ARG_NUM_WORKERS, "WORKERS", OPTION_ARG_OPTIONAL,
+	  "Number of workers to run in parallel, default to number of cpus." },
+	{ "debug", ARG_DEBUG, NULL, 0,
+	  "print extra debug information for test_progs." },
+	{ "json-summary", ARG_JSON_SUMMARY, "FILE", 0, "Write report in json format to this file."},
+#ifdef TRAFFIC_MONITOR
+	{ "traffic-monitor", ARG_TRAFFIC_MONITOR, "NAMES", 0,
+	  "Monitor network traffic of tests with name matching the pattern (supports '*' wildcard)." },
+#endif
+	{ "watchdog-timeout", ARG_WATCHDOG_TIMEOUT, "SECONDS", 0,
+	  "Kill the process if tests are not making progress for specified number of seconds." },
+	{},
+};
+
+static FILE *libbpf_capture_stream;
+
+static struct {
+	char *buf;
+	size_t buf_sz;
+} libbpf_output_capture;
+
+/* Creates a global memstream capturing INFO and WARN level output
+ * passed to libbpf_print_fn.
+ * Returns 0 on success, negative value on failure.
+ * On failure the description is printed using PRINT_FAIL and
+ * current test case is marked as fail.
+ */
+int start_libbpf_log_capture(void)
+{
+	if (libbpf_capture_stream) {
+		PRINT_FAIL("%s: libbpf_capture_stream != NULL\n", __func__);
+		return -EINVAL;
+	}
+
+	libbpf_capture_stream = open_memstream(&libbpf_output_capture.buf,
+					       &libbpf_output_capture.buf_sz);
+	if (!libbpf_capture_stream) {
+		PRINT_FAIL("%s: open_memstream failed errno=%d\n", __func__, errno);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* Destroys global memstream created by start_libbpf_log_capture().
+ * Returns a pointer to captured data which has to be freed.
+ * Returned buffer is null terminated.
+ */
+char *stop_libbpf_log_capture(void)
+{
+	char *buf;
+
+	if (!libbpf_capture_stream)
+		return NULL;
+
+	fputc(0, libbpf_capture_stream);
+	fclose(libbpf_capture_stream);
+	libbpf_capture_stream = NULL;
+	/* get 'buf' after fclose(), see open_memstream() documentation */
+	buf = libbpf_output_capture.buf;
+	memset(&libbpf_output_capture, 0, sizeof(libbpf_output_capture));
+	return buf;
+}
+
+static int libbpf_print_fn(enum libbpf_print_level level,
+			   const char *format, va_list args)
+{
+	if (libbpf_capture_stream && level != LIBBPF_DEBUG) {
+		va_list args2;
+
+		va_copy(args2, args);
+		vfprintf(libbpf_capture_stream, format, args2);
+		va_end(args2);
+	}
+
+	if (env.verbosity < VERBOSE_VERY && level == LIBBPF_DEBUG)
+		return 0;
+
+	vfprintf(stdout, format, args);
+	return 0;
+}
+
+static void free_test_filter_set(const struct test_filter_set *set)
+{
+	int i, j;
+
+	if (!set)
+		return;
+
+	for (i = 0; i < set->cnt; i++) {
+		free((void *)set->tests[i].name);
+		for (j = 0; j < set->tests[i].subtest_cnt; j++)
+			free((void *)set->tests[i].subtests[j]);
+
+		free((void *)set->tests[i].subtests);
+	}
+
+	free((void *)set->tests);
+}
+
+static void free_test_selector(struct test_selector *test_selector)
+{
+	free_test_filter_set(&test_selector->blacklist);
+	free_test_filter_set(&test_selector->whitelist);
+	free(test_selector->num_set);
+}
+
+extern int extra_prog_load_log_flags;
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	struct test_env *env = state->input;
+	int err = 0;
+
+	switch (key) {
+	case ARG_TEST_NUM: {
+		char *subtest_str = strchr(arg, '/');
+
+		if (subtest_str) {
+			*subtest_str = '\0';
+			if (parse_num_list(subtest_str + 1,
+					   &env->subtest_selector.num_set,
+					   &env->subtest_selector.num_set_len)) {
+				fprintf(stderr,
+					"Failed to parse subtest numbers.\n");
+				return -EINVAL;
+			}
+		}
+		if (parse_num_list(arg, &env->test_selector.num_set,
+				   &env->test_selector.num_set_len)) {
+			fprintf(stderr, "Failed to parse test numbers.\n");
+			return -EINVAL;
+		}
+		break;
+	}
+	case ARG_TEST_NAME_GLOB_ALLOWLIST:
+	case ARG_TEST_NAME: {
+		if (arg[0] == '@')
+			err = parse_test_list_file(arg + 1,
+						   &env->test_selector.whitelist,
+						   key == ARG_TEST_NAME_GLOB_ALLOWLIST);
+		else
+			err = parse_test_list(arg,
+					      &env->test_selector.whitelist,
+					      key == ARG_TEST_NAME_GLOB_ALLOWLIST);
+
+		break;
+	}
+	case ARG_TEST_NAME_GLOB_DENYLIST:
+	case ARG_TEST_NAME_BLACKLIST: {
+		if (arg[0] == '@')
+			err = parse_test_list_file(arg + 1,
+						   &env->test_selector.blacklist,
+						   key == ARG_TEST_NAME_GLOB_DENYLIST);
+		else
+			err = parse_test_list(arg,
+					      &env->test_selector.blacklist,
+					      key == ARG_TEST_NAME_GLOB_DENYLIST);
+
+		break;
+	}
+	case ARG_VERIFIER_STATS:
+		env->verifier_stats = true;
+		break;
+	case ARG_VERBOSE:
+		env->verbosity = VERBOSE_NORMAL;
+		if (arg) {
+			if (strcmp(arg, "v") == 0) {
+				env->verbosity = VERBOSE_VERY;
+				extra_prog_load_log_flags = 1;
+			} else if (strcmp(arg, "vv") == 0) {
+				env->verbosity = VERBOSE_SUPER;
+				extra_prog_load_log_flags = 2;
+			} else {
+				fprintf(stderr,
+					"Unrecognized verbosity setting ('%s'), only -v and -vv are supported\n",
+					arg);
+				return -EINVAL;
+			}
+		}
+		env_verbosity = env->verbosity;
+
+		if (verbose()) {
+			if (setenv("SELFTESTS_VERBOSE", "1", 1) == -1) {
+				fprintf(stderr,
+					"Unable to setenv SELFTESTS_VERBOSE=1 (errno=%d)",
+					errno);
+				return -EINVAL;
+			}
+		}
+
+		break;
+	case ARG_GET_TEST_CNT:
+		env->get_test_cnt = true;
+		break;
+	case ARG_LIST_TEST_NAMES:
+		env->list_test_names = true;
+		break;
+	case ARG_NUM_WORKERS:
+		if (arg) {
+			env->workers = atoi(arg);
+			if (!env->workers) {
+				fprintf(stderr, "Invalid number of worker: %s.", arg);
+				return -EINVAL;
+			}
+		} else {
+			env->workers = get_nprocs();
+		}
+		break;
+	case ARG_DEBUG:
+		env->debug = true;
+		break;
+	case ARG_JSON_SUMMARY:
+		env->json = fopen(arg, "w");
+		if (env->json == NULL) {
+			perror("Failed to open json summary file");
+			return -errno;
+		}
+		break;
+	case ARGP_KEY_ARG:
+		argp_usage(state);
+		break;
+	case ARGP_KEY_END:
+		break;
+#ifdef TRAFFIC_MONITOR
+	case ARG_TRAFFIC_MONITOR:
+		if (arg[0] == '@')
+			err = parse_test_list_file(arg + 1,
+						   &env->tmon_selector.whitelist,
+						   true);
+		else
+			err = parse_test_list(arg,
+					      &env->tmon_selector.whitelist,
+					      true);
+		break;
+#endif
+	case ARG_WATCHDOG_TIMEOUT:
+		env->secs_till_kill = atoi(arg);
+		if (env->secs_till_kill < 0) {
+			fprintf(stderr, "Invalid watchdog timeout: %s.\n", arg);
+			return -EINVAL;
+		}
+		if (env->secs_till_kill < env->secs_till_notify) {
+			env->secs_till_notify = 0;
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return err;
+}
+
+/*
+ * Determine if test_progs is running as a "flavored" test runner and switch
+ * into corresponding sub-directory to load correct BPF objects.
+ *
+ * This is done by looking at executable name. If it contains "-flavor"
+ * suffix, then we are running as a flavored test runner.
+ */
+int cd_flavor_subdir(const char *exec_name)
+{
+	/* General form of argv[0] passed here is:
+	 * some/path/to/test_progs[-flavor], where -flavor part is optional.
+	 * First cut out "test_progs[-flavor]" part, then extract "flavor"
+	 * part, if it's there.
+	 */
+	const char *flavor = strrchr(exec_name, '/');
+
+	if (!flavor)
+		flavor = exec_name;
+	else
+		flavor++;
+
+	flavor = strrchr(flavor, '-');
+	if (!flavor)
+		return 0;
+	flavor++;
+	if (verbose())
+		fprintf(stdout,	"Switching to flavor '%s' subdirectory...\n", flavor);
+
+	return chdir(flavor);
+}
+
+int trigger_module_test_read(int read_sz)
+{
+	int fd, err;
+
+	fd = open(BPF_TESTMOD_TEST_FILE, O_RDONLY);
+	err = -errno;
+	if (!ASSERT_GE(fd, 0, "testmod_file_open"))
+		return err;
+
+	read(fd, NULL, read_sz);
+	close(fd);
+
+	return 0;
+}
+
+int trigger_module_test_write(int write_sz)
+{
+	int fd, err;
+	char *buf = malloc(write_sz);
+
+	if (!buf)
+		return -ENOMEM;
+
+	memset(buf, 'a', write_sz);
+	buf[write_sz-1] = '\0';
+
+	fd = open(BPF_TESTMOD_TEST_FILE, O_WRONLY);
+	err = -errno;
+	if (!ASSERT_GE(fd, 0, "testmod_file_open")) {
+		free(buf);
+		return err;
+	}
+
+	write(fd, buf, write_sz);
+	close(fd);
+	free(buf);
+	return 0;
+}
+
+int write_sysctl(const char *sysctl, const char *value)
+{
+	int fd, err, len;
+
+	fd = open(sysctl, O_WRONLY);
+	if (!ASSERT_NEQ(fd, -1, "open sysctl"))
+		return -1;
+
+	len = strlen(value);
+	err = write(fd, value, len);
+	close(fd);
+	if (!ASSERT_EQ(err, len, "write sysctl"))
+		return -1;
+
+	return 0;
+}
+
+int get_bpf_max_tramp_links_from(struct btf *btf)
+{
+	const struct btf_enum *e;
+	const struct btf_type *t;
+	__u32 i, type_cnt;
+	const char *name;
+	__u16 j, vlen;
+
+	for (i = 1, type_cnt = btf__type_cnt(btf); i < type_cnt; i++) {
+		t = btf__type_by_id(btf, i);
+		if (!t || !btf_is_enum(t) || t->name_off)
+			continue;
+		e = btf_enum(t);
+		for (j = 0, vlen = btf_vlen(t); j < vlen; j++, e++) {
+			name = btf__str_by_offset(btf, e->name_off);
+			if (name && !strcmp(name, "BPF_MAX_TRAMP_LINKS"))
+				return e->val;
+		}
+	}
+
+	return -1;
+}
+
+int get_bpf_max_tramp_links(void)
+{
+	struct btf *vmlinux_btf;
+	int ret;
+
+	vmlinux_btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK_PTR(vmlinux_btf, "vmlinux btf"))
+		return -1;
+	ret = get_bpf_max_tramp_links_from(vmlinux_btf);
+	btf__free(vmlinux_btf);
+
+	return ret;
+}
+
+#define MAX_BACKTRACE_SZ 128
+void crash_handler(int signum)
+{
+	void *bt[MAX_BACKTRACE_SZ];
+	size_t sz;
+
+	sz = backtrace(bt, ARRAY_SIZE(bt));
+
+	fflush(stdout);
+	stdout = env.stdout_saved;
+	stderr = env.stderr_saved;
+
+	if (env.test) {
+		env.test_state->error_cnt++;
+		dump_test_log(env.test, env.test_state, true, false, NULL);
+	}
+	if (env.worker_id != -1)
+		fprintf(stderr, "[%d]: ", env.worker_id);
+	fprintf(stderr, "Caught signal #%d!\nStack trace:\n", signum);
+	backtrace_symbols_fd(bt, sz, STDERR_FILENO);
+}
+
+void hexdump(const char *prefix, const void *buf, size_t len)
+{
+	for (int i = 0; i < len; i++) {
+		if (!(i % 16)) {
+			if (i)
+				fprintf(stdout, "\n");
+			fprintf(stdout, "%s", prefix);
+		}
+		if (i && !(i % 8) && (i % 16))
+			fprintf(stdout, "\t");
+		fprintf(stdout, "%02X ", ((uint8_t *)(buf))[i]);
+	}
+	fprintf(stdout, "\n");
+}
+
+static void sigint_handler(int signum)
+{
+	int i;
+
+	for (i = 0; i < env.workers; i++)
+		if (env.worker_socks[i] > 0)
+			close(env.worker_socks[i]);
+}
+
+static int current_test_idx;
+static pthread_mutex_t current_test_lock;
+static pthread_mutex_t stdout_output_lock;
+
+static inline const char *str_msg(const struct msg *msg, char *buf)
+{
+	switch (msg->type) {
+	case MSG_DO_TEST:
+		sprintf(buf, "MSG_DO_TEST %d", msg->do_test.num);
+		break;
+	case MSG_TEST_DONE:
+		sprintf(buf, "MSG_TEST_DONE %d (log: %d)",
+			msg->test_done.num,
+			msg->test_done.have_log);
+		break;
+	case MSG_SUBTEST_DONE:
+		sprintf(buf, "MSG_SUBTEST_DONE %d (log: %d)",
+			msg->subtest_done.num,
+			msg->subtest_done.have_log);
+		break;
+	case MSG_TEST_LOG:
+		sprintf(buf, "MSG_TEST_LOG (cnt: %zu, last: %d)",
+			strlen(msg->test_log.log_buf),
+			msg->test_log.is_last);
+		break;
+	case MSG_EXIT:
+		sprintf(buf, "MSG_EXIT");
+		break;
+	default:
+		sprintf(buf, "UNKNOWN");
+		break;
+	}
+
+	return buf;
+}
+
+static int send_message(int sock, const struct msg *msg)
+{
+	char buf[256];
+
+	if (env.debug)
+		fprintf(stderr, "Sending msg: %s\n", str_msg(msg, buf));
+	return send(sock, msg, sizeof(*msg), 0);
+}
+
+static int recv_message(int sock, struct msg *msg)
+{
+	int ret;
+	char buf[256];
+
+	memset(msg, 0, sizeof(*msg));
+	ret = recv(sock, msg, sizeof(*msg), 0);
+	if (ret >= 0) {
+		if (env.debug)
+			fprintf(stderr, "Received msg: %s\n", str_msg(msg, buf));
+	}
+	return ret;
+}
+
+static bool ns_is_needed(const char *test_name)
+{
+	if (strlen(test_name) < 3)
+		return false;
+
+	return !strncmp(test_name, "ns_", 3);
+}
+
+static void run_one_test(int test_num)
+{
+	struct prog_test_def *test = &prog_test_defs[test_num];
+	struct test_state *state = &test_states[test_num];
+	struct netns_obj *ns = NULL;
+
+	env.test = test;
+	env.test_state = state;
+
+	stdio_hijack(&state->log_buf, &state->log_cnt);
+
+	watchdog_start();
+	if (ns_is_needed(test->test_name))
+		ns = netns_new(test->test_name, true);
+	if (test->run_test)
+		test->run_test();
+	else if (test->run_serial_test)
+		test->run_serial_test();
+	netns_free(ns);
+	watchdog_stop();
+
+	/* ensure last sub-test is finalized properly */
+	if (env.subtest_state)
+		test__end_subtest();
+
+	state->tested = true;
+
+	stdio_restore();
+
+	if (verbose() && env.worker_id == -1)
+		print_test_result(test, state);
+
+	reset_affinity();
+	restore_netns();
+	if (test->need_cgroup_cleanup)
+		cleanup_cgroup_environment();
+
+	free(stop_libbpf_log_capture());
+
+	dump_test_log(test, state, false, false, NULL);
+}
+
+struct dispatch_data {
+	int worker_id;
+	int sock_fd;
+};
+
+static int read_prog_test_msg(int sock_fd, struct msg *msg, enum msg_type type)
+{
+	if (recv_message(sock_fd, msg) < 0)
+		return 1;
+
+	if (msg->type != type) {
+		printf("%s: unexpected message type %d. expected %d\n", __func__, msg->type, type);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int dispatch_thread_read_log(int sock_fd, char **log_buf, size_t *log_cnt)
+{
+	FILE *log_fp = NULL;
+	int result = 0;
+
+	log_fp = open_memstream(log_buf, log_cnt);
+	if (!log_fp)
+		return 1;
+
+	while (true) {
+		struct msg msg;
+
+		if (read_prog_test_msg(sock_fd, &msg, MSG_TEST_LOG)) {
+			result = 1;
+			goto out;
+		}
+
+		fprintf(log_fp, "%s", msg.test_log.log_buf);
+		if (msg.test_log.is_last)
+			break;
+	}
+
+out:
+	fclose(log_fp);
+	log_fp = NULL;
+	return result;
+}
+
+static int dispatch_thread_send_subtests(int sock_fd, struct test_state *state)
+{
+	struct msg msg;
+	struct subtest_state *subtest_state;
+	int subtest_num = state->subtest_num;
+
+	state->subtest_states = malloc(subtest_num * sizeof(*subtest_state));
+
+	for (int i = 0; i < subtest_num; i++) {
+		subtest_state = &state->subtest_states[i];
+
+		memset(subtest_state, 0, sizeof(*subtest_state));
+
+		if (read_prog_test_msg(sock_fd, &msg, MSG_SUBTEST_DONE))
+			return 1;
+
+		subtest_state->name = strdup(msg.subtest_done.name);
+		subtest_state->error_cnt = msg.subtest_done.error_cnt;
+		subtest_state->skipped = msg.subtest_done.skipped;
+		subtest_state->filtered = msg.subtest_done.filtered;
+
+		/* collect all logs */
+		if (msg.subtest_done.have_log)
+			if (dispatch_thread_read_log(sock_fd,
+						     &subtest_state->log_buf,
+						     &subtest_state->log_cnt))
+				return 1;
+	}
+
+	return 0;
+}
+
+static void *dispatch_thread(void *ctx)
+{
+	struct dispatch_data *data = ctx;
+	int sock_fd;
+
+	sock_fd = data->sock_fd;
+
+	while (true) {
+		int test_to_run = -1;
+		struct prog_test_def *test;
+		struct test_state *state;
+
+		/* grab a test */
+		{
+			pthread_mutex_lock(&current_test_lock);
+
+			if (current_test_idx >= prog_test_cnt) {
+				pthread_mutex_unlock(&current_test_lock);
+				goto done;
+			}
+
+			test = &prog_test_defs[current_test_idx];
+			test_to_run = current_test_idx;
+			current_test_idx++;
+
+			pthread_mutex_unlock(&current_test_lock);
+		}
+
+		if (!test->should_run || test->run_serial_test)
+			continue;
+
+		/* run test through worker */
+		{
+			struct msg msg_do_test;
+
+			memset(&msg_do_test, 0, sizeof(msg_do_test));
+			msg_do_test.type = MSG_DO_TEST;
+			msg_do_test.do_test.num = test_to_run;
+			if (send_message(sock_fd, &msg_do_test) < 0) {
+				perror("Fail to send command");
+				goto done;
+			}
+			env.worker_current_test[data->worker_id] = test_to_run;
+		}
+
+		/* wait for test done */
+		do {
+			struct msg msg;
+
+			if (read_prog_test_msg(sock_fd, &msg, MSG_TEST_DONE))
+				goto error;
+			if (test_to_run != msg.test_done.num)
+				goto error;
+
+			state = &test_states[test_to_run];
+			state->tested = true;
+			state->error_cnt = msg.test_done.error_cnt;
+			state->skip_cnt = msg.test_done.skip_cnt;
+			state->sub_succ_cnt = msg.test_done.sub_succ_cnt;
+			state->subtest_num = msg.test_done.subtest_num;
+
+			/* collect all logs */
+			if (msg.test_done.have_log) {
+				if (dispatch_thread_read_log(sock_fd,
+							     &state->log_buf,
+							     &state->log_cnt))
+					goto error;
+			}
+
+			/* collect all subtests and subtest logs */
+			if (!state->subtest_num)
+				break;
+
+			if (dispatch_thread_send_subtests(sock_fd, state))
+				goto error;
+		} while (false);
+
+		pthread_mutex_lock(&stdout_output_lock);
+		dump_test_log(test, state, false, true, NULL);
+		pthread_mutex_unlock(&stdout_output_lock);
+	} /* while (true) */
+error:
+	if (env.debug)
+		fprintf(stderr, "[%d]: Protocol/IO error: %s.\n", data->worker_id, strerror(errno));
+
+done:
+	{
+		struct msg msg_exit;
+
+		msg_exit.type = MSG_EXIT;
+		if (send_message(sock_fd, &msg_exit) < 0) {
+			if (env.debug)
+				fprintf(stderr, "[%d]: send_message msg_exit: %s.\n",
+					data->worker_id, strerror(errno));
+		}
+	}
+	return NULL;
+}
+
+static void calculate_summary_and_print_errors(struct test_env *env)
+{
+	int i;
+	int succ_cnt = 0, fail_cnt = 0, sub_succ_cnt = 0, skip_cnt = 0;
+	json_writer_t *w = NULL;
+
+	for (i = 0; i < prog_test_cnt; i++) {
+		struct test_state *state = &test_states[i];
+
+		if (!state->tested)
+			continue;
+
+		sub_succ_cnt += state->sub_succ_cnt;
+		skip_cnt += state->skip_cnt;
+
+		if (state->error_cnt)
+			fail_cnt++;
+		else
+			succ_cnt++;
+	}
+
+	if (env->json) {
+		w = jsonw_new(env->json);
+		if (!w)
+			fprintf(env->stderr_saved, "Failed to create new JSON stream.");
+	}
+
+	if (w) {
+		jsonw_start_object(w);
+		jsonw_uint_field(w, "success", succ_cnt);
+		jsonw_uint_field(w, "success_subtest", sub_succ_cnt);
+		jsonw_uint_field(w, "skipped", skip_cnt);
+		jsonw_uint_field(w, "failed", fail_cnt);
+		jsonw_name(w, "results");
+		jsonw_start_array(w);
+	}
+
+	/*
+	 * We only print error logs summary when there are failed tests and
+	 * verbose mode is not enabled. Otherwise, results may be inconsistent.
+	 *
+	 */
+	if (!verbose() && fail_cnt) {
+		printf("\nAll error logs:\n");
+
+		/* print error logs again */
+		for (i = 0; i < prog_test_cnt; i++) {
+			struct prog_test_def *test = &prog_test_defs[i];
+			struct test_state *state = &test_states[i];
+
+			if (!state->tested || !state->error_cnt)
+				continue;
+
+			dump_test_log(test, state, true, true, w);
+		}
+	}
+
+	if (w) {
+		jsonw_end_array(w);
+		jsonw_end_object(w);
+		jsonw_destroy(&w);
+	}
+
+	if (env->json)
+		fclose(env->json);
+
+	printf("Summary: %d/%d PASSED, %d SKIPPED, %d FAILED\n",
+	       succ_cnt, sub_succ_cnt, skip_cnt, fail_cnt);
+
+	env->succ_cnt = succ_cnt;
+	env->sub_succ_cnt = sub_succ_cnt;
+	env->fail_cnt = fail_cnt;
+	env->skip_cnt = skip_cnt;
+}
+
+static void server_main(void)
+{
+	pthread_t *dispatcher_threads;
+	struct dispatch_data *data;
+	struct sigaction sigact_int = {
+		.sa_handler = sigint_handler,
+		.sa_flags = SA_RESETHAND,
+	};
+	int i;
+
+	sigaction(SIGINT, &sigact_int, NULL);
+
+	dispatcher_threads = calloc(sizeof(pthread_t), env.workers);
+	data = calloc(sizeof(struct dispatch_data), env.workers);
+
+	env.worker_current_test = calloc(sizeof(int), env.workers);
+	for (i = 0; i < env.workers; i++) {
+		int rc;
+
+		data[i].worker_id = i;
+		data[i].sock_fd = env.worker_socks[i];
+		rc = pthread_create(&dispatcher_threads[i], NULL, dispatch_thread, &data[i]);
+		if (rc < 0) {
+			perror("Failed to launch dispatcher thread");
+			exit(EXIT_ERR_SETUP_INFRA);
+		}
+	}
+
+	/* wait for all dispatcher to finish */
+	for (i = 0; i < env.workers; i++) {
+		while (true) {
+			int ret = pthread_tryjoin_np(dispatcher_threads[i], NULL);
+
+			if (!ret) {
+				break;
+			} else if (ret == EBUSY) {
+				if (env.debug)
+					fprintf(stderr, "Still waiting for thread %d (test %d).\n",
+						i,  env.worker_current_test[i] + 1);
+				usleep(1000 * 1000);
+				continue;
+			} else {
+				fprintf(stderr, "Unexpected error joining dispatcher thread: %d", ret);
+				break;
+			}
+		}
+	}
+	free(dispatcher_threads);
+	free(env.worker_current_test);
+	free(data);
+
+	/* run serial tests */
+	save_netns();
+
+	for (int i = 0; i < prog_test_cnt; i++) {
+		struct prog_test_def *test = &prog_test_defs[i];
+
+		if (!test->should_run || !test->run_serial_test)
+			continue;
+
+		run_one_test(i);
+	}
+
+	/* generate summary */
+	fflush(stderr);
+	fflush(stdout);
+
+	calculate_summary_and_print_errors(&env);
+
+	/* reap all workers */
+	for (i = 0; i < env.workers; i++) {
+		int wstatus, pid;
+
+		pid = waitpid(env.worker_pids[i], &wstatus, 0);
+		if (pid != env.worker_pids[i])
+			perror("Unable to reap worker");
+	}
+}
+
+static void worker_main_send_log(int sock, char *log_buf, size_t log_cnt)
+{
+	char *src;
+	size_t slen;
+
+	src = log_buf;
+	slen = log_cnt;
+	while (slen) {
+		struct msg msg_log;
+		char *dest;
+		size_t len;
+
+		memset(&msg_log, 0, sizeof(msg_log));
+		msg_log.type = MSG_TEST_LOG;
+		dest = msg_log.test_log.log_buf;
+		len = slen >= MAX_LOG_TRUNK_SIZE ? MAX_LOG_TRUNK_SIZE : slen;
+		memcpy(dest, src, len);
+
+		src += len;
+		slen -= len;
+		if (!slen)
+			msg_log.test_log.is_last = true;
+
+		assert(send_message(sock, &msg_log) >= 0);
+	}
+}
+
+static void free_subtest_state(struct subtest_state *state)
+{
+	if (state->log_buf) {
+		free(state->log_buf);
+		state->log_buf = NULL;
+		state->log_cnt = 0;
+	}
+	free(state->name);
+	state->name = NULL;
+}
+
+static int worker_main_send_subtests(int sock, struct test_state *state)
+{
+	int i, result = 0;
+	struct msg msg;
+	struct subtest_state *subtest_state;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_SUBTEST_DONE;
+
+	for (i = 0; i < state->subtest_num; i++) {
+		subtest_state = &state->subtest_states[i];
+
+		msg.subtest_done.num = i;
+
+		strncpy(msg.subtest_done.name, subtest_state->name, MAX_SUBTEST_NAME);
+
+		msg.subtest_done.error_cnt = subtest_state->error_cnt;
+		msg.subtest_done.skipped = subtest_state->skipped;
+		msg.subtest_done.filtered = subtest_state->filtered;
+		msg.subtest_done.have_log = false;
+
+		if (verbose() || state->force_log || subtest_state->error_cnt) {
+			if (subtest_state->log_cnt)
+				msg.subtest_done.have_log = true;
+		}
+
+		if (send_message(sock, &msg) < 0) {
+			perror("Fail to send message done");
+			result = 1;
+			goto out;
+		}
+
+		/* send logs */
+		if (msg.subtest_done.have_log)
+			worker_main_send_log(sock, subtest_state->log_buf, subtest_state->log_cnt);
+
+		free_subtest_state(subtest_state);
+		free(subtest_state->name);
+	}
+
+out:
+	for (; i < state->subtest_num; i++)
+		free_subtest_state(&state->subtest_states[i]);
+	free(state->subtest_states);
+	return result;
+}
+
+static int worker_main(int sock)
+{
+	save_netns();
+	watchdog_init();
+
+	while (true) {
+		/* receive command */
+		struct msg msg;
+
+		if (recv_message(sock, &msg) < 0)
+			goto out;
+
+		switch (msg.type) {
+		case MSG_EXIT:
+			if (env.debug)
+				fprintf(stderr, "[%d]: worker exit.\n",
+					env.worker_id);
+			goto out;
+		case MSG_DO_TEST: {
+			int test_to_run = msg.do_test.num;
+			struct prog_test_def *test = &prog_test_defs[test_to_run];
+			struct test_state *state = &test_states[test_to_run];
+			struct msg msg;
+
+			if (env.debug)
+				fprintf(stderr, "[%d]: #%d:%s running.\n",
+					env.worker_id,
+					test_to_run + 1,
+					test->test_name);
+
+			run_one_test(test_to_run);
+
+			memset(&msg, 0, sizeof(msg));
+			msg.type = MSG_TEST_DONE;
+			msg.test_done.num = test_to_run;
+			msg.test_done.error_cnt = state->error_cnt;
+			msg.test_done.skip_cnt = state->skip_cnt;
+			msg.test_done.sub_succ_cnt = state->sub_succ_cnt;
+			msg.test_done.subtest_num = state->subtest_num;
+			msg.test_done.have_log = false;
+
+			if (verbose() || state->force_log || state->error_cnt) {
+				if (state->log_cnt)
+					msg.test_done.have_log = true;
+			}
+			if (send_message(sock, &msg) < 0) {
+				perror("Fail to send message done");
+				goto out;
+			}
+
+			/* send logs */
+			if (msg.test_done.have_log)
+				worker_main_send_log(sock, state->log_buf, state->log_cnt);
+
+			if (state->log_buf) {
+				free(state->log_buf);
+				state->log_buf = NULL;
+				state->log_cnt = 0;
+			}
+
+			if (state->subtest_num)
+				if (worker_main_send_subtests(sock, state))
+					goto out;
+
+			if (env.debug)
+				fprintf(stderr, "[%d]: #%d:%s done.\n",
+					env.worker_id,
+					test_to_run + 1,
+					test->test_name);
+			break;
+		} /* case MSG_DO_TEST */
+		default:
+			if (env.debug)
+				fprintf(stderr, "[%d]: unknown message.\n",  env.worker_id);
+			return -1;
+		}
+	}
+out:
+	return 0;
+}
+
+static void free_test_states(void)
+{
+	int i, j;
+
+	for (i = 0; i < ARRAY_SIZE(prog_test_defs); i++) {
+		struct test_state *test_state = &test_states[i];
+
+		for (j = 0; j < test_state->subtest_num; j++)
+			free_subtest_state(&test_state->subtest_states[j]);
+
+		free(test_state->subtest_states);
+		free(test_state->log_buf);
+		test_state->subtest_states = NULL;
+		test_state->log_buf = NULL;
+	}
+}
+
+static __u32 register_session_key(const char *key_data, size_t key_data_size)
+{
+	return syscall(__NR_add_key, "asymmetric", "libbpf_session_key",
+			(const void *)key_data, key_data_size,
+			KEY_SPEC_SESSION_KEYRING);
+}
+
+int main(int argc, char **argv)
+{
+	static const struct argp argp = {
+		.options = opts,
+		.parser = parse_arg,
+		.doc = argp_program_doc,
+	};
+	struct sigaction sigact = {
+		.sa_handler = crash_handler,
+		.sa_flags = SA_RESETHAND,
+		};
+	int err, i;
+
+	sigaction(SIGSEGV, &sigact, NULL);
+
+	env.stdout_saved = stdout;
+	env.stderr_saved = stderr;
+
+	env.secs_till_notify = 10;
+	env.secs_till_kill = 120;
+	err = argp_parse(&argp, argc, argv, 0, NULL, &env);
+	if (err)
+		return err;
+
+	err = cd_flavor_subdir(argv[0]);
+	if (err)
+		return err;
+
+	watchdog_init();
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+	libbpf_set_print(libbpf_print_fn);
+	err = register_session_key((const char *)test_progs_verification_cert,
+				   test_progs_verification_cert_len);
+	if (err < 0)
+		return err;
+
+	traffic_monitor_set_print(traffic_monitor_print_fn);
+
+	srand(time(NULL));
+
+	env.jit_enabled = is_jit_enabled();
+	env.nr_cpus = libbpf_num_possible_cpus();
+	if (env.nr_cpus < 0) {
+		fprintf(stderr, "Failed to get number of CPUs: %d!\n",
+			env.nr_cpus);
+		return -1;
+	}
+
+	env.has_testmod = true;
+	if (!env.list_test_names) {
+		/* ensure previous instance of the module is unloaded */
+		unload_bpf_testmod(verbose());
+
+		if (load_bpf_testmod(verbose())) {
+			fprintf(env.stderr_saved, "WARNING! Selftests relying on bpf_testmod.ko will be skipped.\n");
+			env.has_testmod = false;
+		}
+	}
+
+	/* initializing tests */
+	for (i = 0; i < prog_test_cnt; i++) {
+		struct prog_test_def *test = &prog_test_defs[i];
+
+		test->test_num = i + 1;
+		test->should_run = should_run(&env.test_selector,
+					      test->test_num, test->test_name);
+
+		if ((test->run_test == NULL && test->run_serial_test == NULL) ||
+		    (test->run_test != NULL && test->run_serial_test != NULL)) {
+			fprintf(stderr, "Test %d:%s must have either test_%s() or serial_test_%sl() defined.\n",
+				test->test_num, test->test_name, test->test_name, test->test_name);
+			exit(EXIT_ERR_SETUP_INFRA);
+		}
+		if (test->should_run)
+			test->should_tmon = should_tmon(&env.tmon_selector, test->test_name);
+	}
+
+	/* ignore workers if we are just listing */
+	if (env.get_test_cnt || env.list_test_names)
+		env.workers = 0;
+
+	/* launch workers if requested */
+	env.worker_id = -1; /* main process */
+	if (env.workers) {
+		env.worker_pids = calloc(sizeof(pid_t), env.workers);
+		env.worker_socks = calloc(sizeof(int), env.workers);
+		if (env.debug)
+			fprintf(stdout, "Launching %d workers.\n", env.workers);
+		for (i = 0; i < env.workers; i++) {
+			int sv[2];
+			pid_t pid;
+
+			if (socketpair(AF_UNIX, SOCK_SEQPACKET | SOCK_CLOEXEC, 0, sv) < 0) {
+				perror("Fail to create worker socket");
+				return -1;
+			}
+			pid = fork();
+			if (pid < 0) {
+				perror("Failed to fork worker");
+				return -1;
+			} else if (pid != 0) { /* main process */
+				close(sv[1]);
+				env.worker_pids[i] = pid;
+				env.worker_socks[i] = sv[0];
+			} else { /* inside each worker process */
+				close(sv[0]);
+				env.worker_id = i;
+				return worker_main(sv[1]);
+			}
+		}
+
+		if (env.worker_id == -1) {
+			server_main();
+			goto out;
+		}
+	}
+
+	/* The rest of the main process */
+
+	/* on single mode */
+	save_netns();
+
+	for (i = 0; i < prog_test_cnt; i++) {
+		struct prog_test_def *test = &prog_test_defs[i];
+
+		if (!test->should_run)
+			continue;
+
+		if (env.get_test_cnt) {
+			env.succ_cnt++;
+			continue;
+		}
+
+		if (env.list_test_names) {
+			fprintf(env.stdout_saved, "%s\n", test->test_name);
+			env.succ_cnt++;
+			continue;
+		}
+
+		run_one_test(i);
+	}
+
+	if (env.get_test_cnt) {
+		printf("%d\n", env.succ_cnt);
+		goto out;
+	}
+
+	if (env.list_test_names)
+		goto out;
+
+	calculate_summary_and_print_errors(&env);
+
+	close(env.saved_netns_fd);
+out:
+	if (!env.list_test_names && env.has_testmod)
+		unload_bpf_testmod(verbose());
+
+	free_test_selector(&env.test_selector);
+	free_test_selector(&env.subtest_selector);
+	free_test_selector(&env.tmon_selector);
+	free_test_states();
+
+	if (env.succ_cnt + env.fail_cnt + env.skip_cnt == 0)
+		return EXIT_NO_TEST;
+
+	return env.fail_cnt ? EXIT_FAILURE : EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/bpf/test_progs.h b/tools/testing/selftests/bpf/test_progs.h
new file mode 100644
index 000000000000..eebfc18cdcd2
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_progs.h
@@ -0,0 +1,566 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TEST_PROGS_H
+#define __TEST_PROGS_H
+
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <assert.h>
+#include <regex.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <time.h>
+#include <signal.h>
+
+#include <linux/types.h>
+typedef __u16 __sum16;
+#include <arpa/inet.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/filter.h>
+#include <linux/perf_event.h>
+#include <linux/socket.h>
+#include <linux/unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/param.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <linux/bpf.h>
+#include <linux/err.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "test_iptunnel_common.h"
+#include "bpf_util.h"
+#include <bpf/bpf_endian.h>
+#include "trace_helpers.h"
+#include "testing_helpers.h"
+
+enum verbosity {
+	VERBOSE_NONE,
+	VERBOSE_NORMAL,
+	VERBOSE_VERY,
+	VERBOSE_SUPER,
+};
+
+struct test_filter {
+	char *name;
+	char **subtests;
+	int subtest_cnt;
+};
+
+struct test_filter_set {
+	struct test_filter *tests;
+	int cnt;
+};
+
+struct test_selector {
+	struct test_filter_set whitelist;
+	struct test_filter_set blacklist;
+	bool *num_set;
+	int num_set_len;
+};
+
+struct subtest_state {
+	char *name;
+	size_t log_cnt;
+	char *log_buf;
+	int error_cnt;
+	bool skipped;
+	bool filtered;
+	bool should_tmon;
+
+	FILE *stdout_saved;
+};
+
+struct test_state {
+	bool tested;
+	bool force_log;
+
+	int error_cnt;
+	int skip_cnt;
+	int sub_succ_cnt;
+
+	struct subtest_state *subtest_states;
+	int subtest_num;
+
+	size_t log_cnt;
+	char *log_buf;
+
+	FILE *stdout_saved;
+};
+
+extern int env_verbosity;
+
+struct test_env {
+	struct test_selector test_selector;
+	struct test_selector subtest_selector;
+	struct test_selector tmon_selector;
+	bool verifier_stats;
+	bool debug;
+	enum verbosity verbosity;
+
+	bool jit_enabled;
+	bool has_testmod;
+	bool get_test_cnt;
+	bool list_test_names;
+
+	struct prog_test_def *test; /* current running test */
+	struct test_state *test_state; /* current running test state */
+	struct subtest_state *subtest_state; /* current running subtest state */
+
+	FILE *stdout_saved;
+	FILE *stderr_saved;
+	int nr_cpus;
+	FILE *json;
+
+	int succ_cnt; /* successful tests */
+	int sub_succ_cnt; /* successful sub-tests */
+	int fail_cnt; /* total failed tests + sub-tests */
+	int skip_cnt; /* skipped tests */
+
+	int saved_netns_fd;
+	int workers; /* number of worker process */
+	int worker_id; /* id number of current worker, main process is -1 */
+	pid_t *worker_pids; /* array of worker pids */
+	int *worker_socks; /* array of worker socks */
+	int *worker_current_test; /* array of current running test for each worker */
+
+	pthread_t main_thread;
+	int secs_till_notify;
+	int secs_till_kill;
+	timer_t watchdog; /* watch for stalled tests/subtests */
+	enum { WD_NOTIFY, WD_KILL } watchdog_state;
+};
+
+#define MAX_LOG_TRUNK_SIZE 8192
+#define MAX_SUBTEST_NAME 1024
+enum msg_type {
+	MSG_DO_TEST = 0,
+	MSG_TEST_DONE = 1,
+	MSG_TEST_LOG = 2,
+	MSG_SUBTEST_DONE = 3,
+	MSG_EXIT = 255,
+};
+struct msg {
+	enum msg_type type;
+	union {
+		struct {
+			int num;
+		} do_test;
+		struct {
+			int num;
+			int sub_succ_cnt;
+			int error_cnt;
+			int skip_cnt;
+			bool have_log;
+			int subtest_num;
+		} test_done;
+		struct {
+			char log_buf[MAX_LOG_TRUNK_SIZE + 1];
+			bool is_last;
+		} test_log;
+		struct {
+			int num;
+			char name[MAX_SUBTEST_NAME + 1];
+			int error_cnt;
+			bool skipped;
+			bool filtered;
+			bool have_log;
+		} subtest_done;
+	};
+};
+
+extern struct test_env env;
+
+void test__force_log(void);
+bool test__start_subtest(const char *name);
+void test__end_subtest(void);
+void test__skip(void);
+void test__fail(void);
+int test__join_cgroup(const char *path);
+void hexdump(const char *prefix, const void *buf, size_t len);
+
+#define PRINT_FAIL(format...)                                                  \
+	({                                                                     \
+		test__fail();                                                  \
+		fprintf(stdout, "%s:FAIL:%d ", __func__, __LINE__);            \
+		fprintf(stdout, ##format);                                     \
+	})
+
+#define _CHECK(condition, tag, duration, format...) ({			\
+	int __ret = !!(condition);					\
+	int __save_errno = errno;					\
+	if (__ret) {							\
+		test__fail();						\
+		fprintf(stdout, "%s:FAIL:%s ", __func__, tag);		\
+		fprintf(stdout, ##format);				\
+	} else {							\
+		fprintf(stdout, "%s:PASS:%s %d nsec\n",			\
+		       __func__, tag, duration);			\
+	}								\
+	errno = __save_errno;						\
+	__ret;								\
+})
+
+#define CHECK_FAIL(condition) ({					\
+	int __ret = !!(condition);					\
+	int __save_errno = errno;					\
+	if (__ret) {							\
+		test__fail();						\
+		fprintf(stdout, "%s:FAIL:%d\n", __func__, __LINE__);	\
+	}								\
+	errno = __save_errno;						\
+	__ret;								\
+})
+
+#define CHECK(condition, tag, format...) \
+	_CHECK(condition, tag, duration, format)
+#define CHECK_ATTR(condition, tag, format...) \
+	_CHECK(condition, tag, tattr.duration, format)
+
+#define ASSERT_FAIL(fmt, args...) ({					\
+	static int duration = 0;					\
+	CHECK(false, "", fmt"\n", ##args);				\
+	false;								\
+})
+
+#define ASSERT_TRUE(actual, name) ({					\
+	static int duration = 0;					\
+	bool ___ok = (actual);						\
+	CHECK(!___ok, (name), "unexpected %s: got FALSE\n", (name));	\
+	___ok;								\
+})
+
+#define ASSERT_FALSE(actual, name) ({					\
+	static int duration = 0;					\
+	bool ___ok = !(actual);						\
+	CHECK(!___ok, (name), "unexpected %s: got TRUE\n", (name));	\
+	___ok;								\
+})
+
+#define ASSERT_EQ(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act == ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld != expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_NEQ(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act != ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld == expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_LT(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act < ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld >= expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_LE(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act <= ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld > expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_GT(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act > ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld <= expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_GE(actual, expected, name) ({				\
+	static int duration = 0;					\
+	typeof(actual) ___act = (actual);				\
+	typeof(expected) ___exp = (expected);				\
+	bool ___ok = ___act >= ___exp;					\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual %lld < expected %lld\n",		\
+	      (name), (long long)(___act), (long long)(___exp));	\
+	___ok;								\
+})
+
+#define ASSERT_STREQ(actual, expected, name) ({				\
+	static int duration = 0;					\
+	const char *___act = actual;					\
+	const char *___exp = expected;					\
+	bool ___ok = strcmp(___act, ___exp) == 0;			\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual '%s' != expected '%s'\n",		\
+	      (name), ___act, ___exp);					\
+	___ok;								\
+})
+
+#define ASSERT_STRNEQ(actual, expected, len, name) ({			\
+	static int duration = 0;					\
+	const char *___act = actual;					\
+	const char *___exp = expected;					\
+	int ___len = len;						\
+	bool ___ok = strncmp(___act, ___exp, ___len) == 0;		\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: actual '%.*s' != expected '%.*s'\n",	\
+	      (name), ___len, ___act, ___len, ___exp);			\
+	___ok;								\
+})
+
+#define ASSERT_HAS_SUBSTR(str, substr, name) ({				\
+	static int duration = 0;					\
+	const char *___str = str;					\
+	const char *___substr = substr;					\
+	bool ___ok = strstr(___str, ___substr) != NULL;			\
+	CHECK(!___ok, (name),						\
+	      "unexpected %s: '%s' is not a substring of '%s'\n",	\
+	      (name), ___substr, ___str);				\
+	___ok;								\
+})
+
+#define ASSERT_MEMEQ(actual, expected, len, name) ({			\
+	static int duration = 0;					\
+	const void *__act = actual;					\
+	const void *__exp = expected;					\
+	int __len = len;						\
+	bool ___ok = memcmp(__act, __exp, __len) == 0;			\
+	CHECK(!___ok, (name), "unexpected memory mismatch\n");		\
+	fprintf(stdout, "actual:\n");					\
+	hexdump("\t", __act, __len);					\
+	fprintf(stdout, "expected:\n");					\
+	hexdump("\t", __exp, __len);					\
+	___ok;								\
+})
+
+#define ASSERT_OK(res, name) ({						\
+	static int duration = 0;					\
+	long long ___res = (res);					\
+	bool ___ok = ___res == 0;					\
+	CHECK(!___ok, (name), "unexpected error: %lld (errno %d)\n",	\
+	      ___res, errno);						\
+	___ok;								\
+})
+
+#define ASSERT_ERR(res, name) ({					\
+	static int duration = 0;					\
+	long long ___res = (res);					\
+	bool ___ok = ___res < 0;					\
+	CHECK(!___ok, (name), "unexpected success: %lld\n", ___res);	\
+	___ok;								\
+})
+
+#define ASSERT_NULL(ptr, name) ({					\
+	static int duration = 0;					\
+	const void *___res = (ptr);					\
+	bool ___ok = !___res;						\
+	CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res);	\
+	___ok;								\
+})
+
+#define ASSERT_OK_PTR(ptr, name) ({					\
+	static int duration = 0;					\
+	const void *___res = (ptr);					\
+	int ___err = libbpf_get_error(___res);				\
+	bool ___ok = ___err == 0;					\
+	CHECK(!___ok, (name), "unexpected error: %d\n", ___err);	\
+	___ok;								\
+})
+
+#define ASSERT_ERR_PTR(ptr, name) ({					\
+	static int duration = 0;					\
+	const void *___res = (ptr);					\
+	int ___err = libbpf_get_error(___res);				\
+	bool ___ok = ___err != 0;					\
+	CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res);	\
+	___ok;								\
+})
+
+#define ASSERT_OK_FD(fd, name) ({					\
+	static int duration = 0;					\
+	int ___fd = (fd);						\
+	bool ___ok = ___fd >= 0;					\
+	CHECK(!___ok, (name), "unexpected fd: %d (errno %d)\n",		\
+	      ___fd, errno);						\
+	___ok;								\
+})
+
+#define ASSERT_ERR_FD(fd, name) ({					\
+	static int duration = 0;					\
+	int ___fd = (fd);						\
+	bool ___ok = ___fd < 0;						\
+	CHECK(!___ok, (name), "unexpected fd: %d\n", ___fd);		\
+	___ok;								\
+})
+
+#define SYS(goto_label, fmt, ...)					\
+	({								\
+		char cmd[1024];						\
+		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);		\
+		if (!ASSERT_OK(system(cmd), cmd))			\
+			goto goto_label;				\
+	})
+
+#define SYS_FAIL(goto_label, fmt, ...)					\
+	({								\
+		char cmd[1024];						\
+		snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);		\
+		if (!ASSERT_NEQ(0, system(cmd), cmd))			\
+			goto goto_label;				\
+	})
+
+#define ALL_TO_DEV_NULL " >/dev/null 2>&1"
+
+#define SYS_NOFAIL(fmt, ...)						\
+	({								\
+		char cmd[1024];						\
+		int n;							\
+		n = snprintf(cmd, sizeof(cmd), fmt, ##__VA_ARGS__);	\
+		if (n < sizeof(cmd) && sizeof(cmd) - n >= sizeof(ALL_TO_DEV_NULL)) \
+			strcat(cmd, ALL_TO_DEV_NULL);			\
+		system(cmd);						\
+	})
+
+int start_libbpf_log_capture(void);
+char *stop_libbpf_log_capture(void);
+
+static inline __u64 ptr_to_u64(const void *ptr)
+{
+	return (__u64) (unsigned long) ptr;
+}
+
+static inline void *u64_to_ptr(__u64 ptr)
+{
+	return (void *) (unsigned long) ptr;
+}
+
+static inline __u32 id_from_prog_fd(int fd)
+{
+	struct bpf_prog_info prog_info = {};
+	__u32 prog_info_len = sizeof(prog_info);
+	int err;
+
+	err = bpf_obj_get_info_by_fd(fd, &prog_info, &prog_info_len);
+	if (!ASSERT_OK(err, "id_from_prog_fd"))
+		return 0;
+
+	ASSERT_NEQ(prog_info.id, 0, "prog_info.id");
+	return prog_info.id;
+}
+
+static inline __u32 id_from_link_fd(int fd)
+{
+	struct bpf_link_info link_info = {};
+	__u32 link_info_len = sizeof(link_info);
+	int err;
+
+	err = bpf_link_get_info_by_fd(fd, &link_info, &link_info_len);
+	if (!ASSERT_OK(err, "id_from_link_fd"))
+		return 0;
+
+	ASSERT_NEQ(link_info.id, 0, "link_info.id");
+	return link_info.id;
+}
+
+int bpf_find_map(const char *test, struct bpf_object *obj, const char *name);
+int compare_map_keys(int map1_fd, int map2_fd);
+int compare_stack_ips(int smap_fd, int amap_fd, int stack_trace_len);
+int trigger_module_test_read(int read_sz);
+int trigger_module_test_write(int write_sz);
+int write_sysctl(const char *sysctl, const char *value);
+int get_bpf_max_tramp_links_from(struct btf *btf);
+int get_bpf_max_tramp_links(void);
+
+struct netns_obj;
+struct netns_obj *netns_new(const char *name, bool open);
+void netns_free(struct netns_obj *netns);
+
+#ifdef __x86_64__
+#define SYS_NANOSLEEP_KPROBE_NAME "__x64_sys_nanosleep"
+#elif defined(__s390x__)
+#define SYS_NANOSLEEP_KPROBE_NAME "__s390x_sys_nanosleep"
+#elif defined(__aarch64__)
+#define SYS_NANOSLEEP_KPROBE_NAME "__arm64_sys_nanosleep"
+#elif defined(__riscv)
+#define SYS_NANOSLEEP_KPROBE_NAME "__riscv_sys_nanosleep"
+#else
+#define SYS_NANOSLEEP_KPROBE_NAME "sys_nanosleep"
+#endif
+
+#define BPF_TESTMOD_TEST_FILE "/sys/kernel/bpf_testmod"
+
+typedef int (*pre_execution_cb)(struct bpf_object *obj);
+
+struct test_loader {
+	char *log_buf;
+	size_t log_buf_sz;
+	pre_execution_cb pre_execution_cb;
+
+	struct bpf_object *obj;
+};
+
+static inline void test_loader__set_pre_execution_cb(struct test_loader *tester,
+						     pre_execution_cb cb)
+{
+	tester->pre_execution_cb = cb;
+}
+
+typedef const void *(*skel_elf_bytes_fn)(size_t *sz);
+
+extern void test_loader__run_subtests(struct test_loader *tester,
+				      const char *skel_name,
+				      skel_elf_bytes_fn elf_bytes_factory);
+
+extern void test_loader_fini(struct test_loader *tester);
+
+#define RUN_TESTS(skel) ({						       \
+	struct test_loader tester = {};					       \
+									       \
+	test_loader__run_subtests(&tester, #skel, skel##__elf_bytes);	       \
+	test_loader_fini(&tester);					       \
+})
+
+struct expect_msg {
+	const char *substr; /* substring match */
+	regex_t regex;
+	bool is_regex;
+	bool on_next_line;
+	bool negative;
+};
+
+struct expected_msgs {
+	struct expect_msg *patterns;
+	size_t cnt;
+};
+
+void validate_msgs(const char *log_buf, struct expected_msgs *msgs,
+		   void (*emit_fn)(const char *buf, bool force));
+
+#endif /* __TEST_PROGS_H */
diff --git a/tools/testing/selftests/bpf/test_select_reuseport_common.h b/tools/testing/selftests/bpf/test_select_reuseport_common.h
new file mode 100644
index 000000000000..08eb2a9f145f
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_select_reuseport_common.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2018 Facebook */
+
+#ifndef __TEST_SELECT_REUSEPORT_COMMON_H
+#define __TEST_SELECT_REUSEPORT_COMMON_H
+
+#include <linux/types.h>
+
+enum result {
+	DROP_ERR_INNER_MAP,
+	DROP_ERR_SKB_DATA,
+	DROP_ERR_SK_SELECT_REUSEPORT,
+	DROP_MISC,
+	PASS,
+	PASS_ERR_SK_SELECT_REUSEPORT,
+	NR_RESULTS,
+};
+
+struct cmd {
+	__u32 reuseport_index;
+	__u32 pass_on_failure;
+};
+
+struct data_check {
+	__u32 ip_protocol;
+	__u32 skb_addrs[8];
+	__u16 skb_ports[2];
+	__u16 eth_protocol;
+	__u8  bind_inany;
+	__u8  equal_check_end[0];
+
+	__u32 len;
+	__u32 hash;
+};
+
+#endif
diff --git a/tools/testing/selftests/bpf/test_sockmap.c b/tools/testing/selftests/bpf/test_sockmap.c
new file mode 100644
index 000000000000..76568db7a664
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_sockmap.c
@@ -0,0 +1,2247 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2017-2018 Covalent IO, Inc. http://covalent.io
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <sched.h>
+
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/sendfile.h>
+
+#include <linux/netlink.h>
+#include <linux/socket.h>
+#include <linux/sock_diag.h>
+#include <linux/bpf.h>
+#include <linux/if_link.h>
+#include <linux/tls.h>
+#include <assert.h>
+#include <libgen.h>
+
+#include <getopt.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "bpf_util.h"
+#include "cgroup_helpers.h"
+
+int running;
+static void running_handler(int a);
+
+#ifndef TCP_ULP
+# define TCP_ULP 31
+#endif
+#ifndef SOL_TLS
+# define SOL_TLS 282
+#endif
+
+/* randomly selected ports for testing on lo */
+#define S1_PORT 10000
+#define S2_PORT 10001
+
+#define BPF_SOCKMAP_FILENAME  "test_sockmap_kern.bpf.o"
+#define BPF_SOCKHASH_FILENAME "test_sockhash_kern.bpf.o"
+#define CG_PATH "/sockmap"
+
+#define EDATAINTEGRITY 2001
+
+/* global sockets */
+int s1, s2, c1, c2, p1, p2;
+int test_cnt;
+int passed;
+int failed;
+int map_fd[9];
+struct bpf_map *maps[9];
+struct bpf_program *progs[9];
+struct bpf_link *links[9];
+
+int txmsg_pass;
+int txmsg_redir;
+int txmsg_drop;
+int txmsg_apply;
+int txmsg_cork;
+int txmsg_start;
+int txmsg_end;
+int txmsg_start_push;
+int txmsg_end_push;
+int txmsg_start_pop;
+int txmsg_pop;
+int txmsg_ingress;
+int txmsg_redir_skb;
+int txmsg_ktls_skb;
+int txmsg_ktls_skb_drop;
+int txmsg_ktls_skb_redir;
+int ktls;
+int peek_flag;
+int skb_use_parser;
+int txmsg_omit_skb_parser;
+int verify_push_start;
+int verify_push_len;
+int verify_pop_start;
+int verify_pop_len;
+
+static const struct option long_options[] = {
+	{"help",	no_argument,		NULL, 'h' },
+	{"cgroup",	required_argument,	NULL, 'c' },
+	{"rate",	required_argument,	NULL, 'r' },
+	{"verbose",	optional_argument,	NULL, 'v' },
+	{"iov_count",	required_argument,	NULL, 'i' },
+	{"length",	required_argument,	NULL, 'l' },
+	{"test",	required_argument,	NULL, 't' },
+	{"data_test",   no_argument,		NULL, 'd' },
+	{"txmsg",		no_argument,	&txmsg_pass,  1  },
+	{"txmsg_redir",		no_argument,	&txmsg_redir, 1  },
+	{"txmsg_drop",		no_argument,	&txmsg_drop, 1 },
+	{"txmsg_apply",	required_argument,	NULL, 'a'},
+	{"txmsg_cork",	required_argument,	NULL, 'k'},
+	{"txmsg_start", required_argument,	NULL, 's'},
+	{"txmsg_end",	required_argument,	NULL, 'e'},
+	{"txmsg_start_push", required_argument,	NULL, 'p'},
+	{"txmsg_end_push",   required_argument,	NULL, 'q'},
+	{"txmsg_start_pop",  required_argument,	NULL, 'w'},
+	{"txmsg_pop",	     required_argument,	NULL, 'x'},
+	{"txmsg_ingress", no_argument,		&txmsg_ingress, 1 },
+	{"txmsg_redir_skb", no_argument,	&txmsg_redir_skb, 1 },
+	{"ktls", no_argument,			&ktls, 1 },
+	{"peek", no_argument,			&peek_flag, 1 },
+	{"txmsg_omit_skb_parser", no_argument,      &txmsg_omit_skb_parser, 1},
+	{"whitelist", required_argument,	NULL, 'n' },
+	{"blacklist", required_argument,	NULL, 'b' },
+	{0, 0, NULL, 0 }
+};
+
+struct test_env {
+	const char *type;
+	const char *subtest;
+	const char *prepend;
+
+	int test_num;
+	int subtest_num;
+
+	int succ_cnt;
+	int fail_cnt;
+	int fail_last;
+};
+
+struct test_env env;
+
+struct sockmap_options {
+	int verbose;
+	bool base;
+	bool sendpage;
+	bool data_test;
+	bool drop_expected;
+	bool check_recved_len;
+	bool tx_wait_mem;
+	int iov_count;
+	int iov_length;
+	int rate;
+	char *map;
+	char *whitelist;
+	char *blacklist;
+	char *prepend;
+};
+
+struct _test {
+	char *title;
+	void (*tester)(int cg_fd, struct sockmap_options *opt);
+};
+
+static void test_start(void)
+{
+	env.subtest_num++;
+}
+
+static void test_fail(void)
+{
+	env.fail_cnt++;
+}
+
+static void test_pass(void)
+{
+	env.succ_cnt++;
+}
+
+static void test_reset(void)
+{
+	txmsg_start = txmsg_end = 0;
+	txmsg_start_pop = txmsg_pop = 0;
+	txmsg_start_push = txmsg_end_push = 0;
+	txmsg_pass = txmsg_drop = txmsg_redir = 0;
+	txmsg_apply = txmsg_cork = 0;
+	txmsg_ingress = txmsg_redir_skb = 0;
+	txmsg_ktls_skb = txmsg_ktls_skb_drop = txmsg_ktls_skb_redir = 0;
+	txmsg_omit_skb_parser = 0;
+	skb_use_parser = 0;
+}
+
+static int test_start_subtest(const struct _test *t, struct sockmap_options *o)
+{
+	env.type = o->map;
+	env.subtest = t->title;
+	env.prepend = o->prepend;
+	env.test_num++;
+	env.subtest_num = 0;
+	env.fail_last = env.fail_cnt;
+	test_reset();
+	return 0;
+}
+
+static void test_end_subtest(void)
+{
+	int error = env.fail_cnt - env.fail_last;
+	int type = strcmp(env.type, BPF_SOCKMAP_FILENAME);
+
+	if (!error)
+		test_pass();
+
+	fprintf(stdout, "#%2d/%2d %8s:%s:%s:%s\n",
+		env.test_num, env.subtest_num,
+		!type ? "sockmap" : "sockhash",
+		env.prepend ? : "",
+		env.subtest, error ? "FAIL" : "OK");
+}
+
+static void test_print_results(void)
+{
+	fprintf(stdout, "Pass: %d Fail: %d\n",
+		env.succ_cnt, env.fail_cnt);
+}
+
+static void usage(char *argv[])
+{
+	int i;
+
+	printf(" Usage: %s --cgroup <cgroup_path>\n", argv[0]);
+	printf(" options:\n");
+	for (i = 0; long_options[i].name != 0; i++) {
+		printf(" --%-12s", long_options[i].name);
+		if (long_options[i].flag != NULL)
+			printf(" flag (internal value:%d)\n",
+				*long_options[i].flag);
+		else
+			printf(" -%c\n", long_options[i].val);
+	}
+	printf("\n");
+}
+
+char *sock_to_string(int s)
+{
+	if (s == c1)
+		return "client1";
+	else if (s == c2)
+		return "client2";
+	else if (s == s1)
+		return "server1";
+	else if (s == s2)
+		return "server2";
+	else if (s == p1)
+		return "peer1";
+	else if (s == p2)
+		return "peer2";
+	else
+		return "unknown";
+}
+
+static int sockmap_init_ktls(int verbose, int s)
+{
+	struct tls12_crypto_info_aes_gcm_128 tls_tx = {
+		.info = {
+			.version     = TLS_1_2_VERSION,
+			.cipher_type = TLS_CIPHER_AES_GCM_128,
+		},
+	};
+	struct tls12_crypto_info_aes_gcm_128 tls_rx = {
+		.info = {
+			.version     = TLS_1_2_VERSION,
+			.cipher_type = TLS_CIPHER_AES_GCM_128,
+		},
+	};
+	int so_buf = 6553500;
+	int err;
+
+	err = setsockopt(s, 6, TCP_ULP, "tls", sizeof("tls"));
+	if (err) {
+		fprintf(stderr, "setsockopt: TCP_ULP(%s) failed with error %i\n", sock_to_string(s), err);
+		return -EINVAL;
+	}
+	err = setsockopt(s, SOL_TLS, TLS_TX, (void *)&tls_tx, sizeof(tls_tx));
+	if (err) {
+		fprintf(stderr, "setsockopt: TLS_TX(%s) failed with error %i\n", sock_to_string(s), err);
+		return -EINVAL;
+	}
+	err = setsockopt(s, SOL_TLS, TLS_RX, (void *)&tls_rx, sizeof(tls_rx));
+	if (err) {
+		fprintf(stderr, "setsockopt: TLS_RX(%s) failed with error %i\n", sock_to_string(s), err);
+		return -EINVAL;
+	}
+	err = setsockopt(s, SOL_SOCKET, SO_SNDBUF, &so_buf, sizeof(so_buf));
+	if (err) {
+		fprintf(stderr, "setsockopt: (%s) failed sndbuf with error %i\n", sock_to_string(s), err);
+		return -EINVAL;
+	}
+	err = setsockopt(s, SOL_SOCKET, SO_RCVBUF, &so_buf, sizeof(so_buf));
+	if (err) {
+		fprintf(stderr, "setsockopt: (%s) failed rcvbuf with error %i\n", sock_to_string(s), err);
+		return -EINVAL;
+	}
+
+	if (verbose)
+		fprintf(stdout, "socket(%s) kTLS enabled\n", sock_to_string(s));
+	return 0;
+}
+static int sockmap_init_sockets(int verbose)
+{
+	int i, err, one = 1;
+	struct sockaddr_in addr;
+	int *fds[4] = {&s1, &s2, &c1, &c2};
+
+	s1 = s2 = p1 = p2 = c1 = c2 = 0;
+
+	/* Init sockets */
+	for (i = 0; i < 4; i++) {
+		*fds[i] = socket(AF_INET, SOCK_STREAM, 0);
+		if (*fds[i] < 0) {
+			perror("socket s1 failed()");
+			return errno;
+		}
+	}
+
+	/* Allow reuse */
+	for (i = 0; i < 2; i++) {
+		err = setsockopt(*fds[i], SOL_SOCKET, SO_REUSEADDR,
+				 (char *)&one, sizeof(one));
+		if (err) {
+			perror("setsockopt failed()");
+			return errno;
+		}
+	}
+
+	/* Non-blocking sockets */
+	for (i = 0; i < 2; i++) {
+		err = ioctl(*fds[i], FIONBIO, (char *)&one);
+		if (err < 0) {
+			perror("ioctl s1 failed()");
+			return errno;
+		}
+	}
+
+	/* Bind server sockets */
+	memset(&addr, 0, sizeof(struct sockaddr_in));
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+
+	addr.sin_port = htons(S1_PORT);
+	err = bind(s1, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0) {
+		perror("bind s1 failed()");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = bind(s2, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0) {
+		perror("bind s2 failed()");
+		return errno;
+	}
+
+	/* Listen server sockets */
+	addr.sin_port = htons(S1_PORT);
+	err = listen(s1, 32);
+	if (err < 0) {
+		perror("listen s1 failed()");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = listen(s2, 32);
+	if (err < 0) {
+		perror("listen s1 failed()");
+		return errno;
+	}
+
+	/* Initiate Connect */
+	addr.sin_port = htons(S1_PORT);
+	err = connect(c1, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0 && errno != EINPROGRESS) {
+		perror("connect c1 failed()");
+		return errno;
+	}
+
+	addr.sin_port = htons(S2_PORT);
+	err = connect(c2, (struct sockaddr *)&addr, sizeof(addr));
+	if (err < 0 && errno != EINPROGRESS) {
+		perror("connect c2 failed()");
+		return errno;
+	} else if (err < 0) {
+		err = 0;
+	}
+
+	/* Accept Connecrtions */
+	p1 = accept(s1, NULL, NULL);
+	if (p1 < 0) {
+		perror("accept s1 failed()");
+		return errno;
+	}
+
+	p2 = accept(s2, NULL, NULL);
+	if (p2 < 0) {
+		perror("accept s1 failed()");
+		return errno;
+	}
+
+	if (verbose > 1) {
+		printf("connected sockets: c1 <-> p1, c2 <-> p2\n");
+		printf("cgroups binding: c1(%i) <-> s1(%i) - - - c2(%i) <-> s2(%i)\n",
+			c1, s1, c2, s2);
+	}
+	return 0;
+}
+
+struct msg_stats {
+	size_t bytes_sent;
+	size_t bytes_recvd;
+	struct timespec start;
+	struct timespec end;
+};
+
+static int msg_loop_sendpage(int fd, int iov_length, int cnt,
+			     struct msg_stats *s,
+			     struct sockmap_options *opt)
+{
+	bool drop = opt->drop_expected;
+	unsigned char k = 0;
+	int i, j, fp;
+	FILE *file;
+
+	file = tmpfile();
+	if (!file) {
+		perror("create file for sendpage");
+		return 1;
+	}
+	for (i = 0; i < cnt; i++, k = 0) {
+		for (j = 0; j < iov_length; j++, k++)
+			fwrite(&k, sizeof(char), 1, file);
+	}
+	fflush(file);
+	fseek(file, 0, SEEK_SET);
+
+	fp = fileno(file);
+
+	clock_gettime(CLOCK_MONOTONIC, &s->start);
+	for (i = 0; i < cnt; i++) {
+		int sent;
+
+		errno = 0;
+		sent = sendfile(fd, fp, NULL, iov_length);
+
+		if (!drop && sent < 0) {
+			perror("sendpage loop error");
+			fclose(file);
+			return sent;
+		} else if (drop && sent >= 0) {
+			printf("sendpage loop error expected: %i errno %i\n",
+			       sent, errno);
+			fclose(file);
+			return -EIO;
+		}
+
+		if (sent > 0)
+			s->bytes_sent += sent;
+	}
+	clock_gettime(CLOCK_MONOTONIC, &s->end);
+	fclose(file);
+	return 0;
+}
+
+static void msg_free_iov(struct msghdr *msg)
+{
+	int i;
+
+	for (i = 0; i < msg->msg_iovlen; i++)
+		free(msg->msg_iov[i].iov_base);
+	free(msg->msg_iov);
+	msg->msg_iov = NULL;
+	msg->msg_iovlen = 0;
+}
+
+static int msg_alloc_iov(struct msghdr *msg,
+			 int iov_count, int iov_length,
+			 bool data, bool xmit)
+{
+	unsigned char k = 0;
+	struct iovec *iov;
+	int i;
+
+	iov = calloc(iov_count, sizeof(struct iovec));
+	if (!iov)
+		return errno;
+
+	for (i = 0; i < iov_count; i++) {
+		unsigned char *d = calloc(iov_length, sizeof(char));
+
+		if (!d) {
+			fprintf(stderr, "iov_count %i/%i OOM\n", i, iov_count);
+			goto unwind_iov;
+		}
+		iov[i].iov_base = d;
+		iov[i].iov_len = iov_length;
+
+		if (data && xmit) {
+			int j;
+
+			for (j = 0; j < iov_length; j++)
+				d[j] = k++;
+		}
+	}
+
+	msg->msg_iov = iov;
+	msg->msg_iovlen = iov_count;
+
+	return 0;
+unwind_iov:
+	for (i--; i >= 0 ; i--)
+		free(msg->msg_iov[i].iov_base);
+	return -ENOMEM;
+}
+
+/* In push or pop test, we need to do some calculations for msg_verify_data */
+static void msg_verify_date_prep(void)
+{
+	int push_range_end = txmsg_start_push + txmsg_end_push - 1;
+	int pop_range_end = txmsg_start_pop + txmsg_pop - 1;
+
+	if (txmsg_end_push && txmsg_pop &&
+	    txmsg_start_push <= pop_range_end && txmsg_start_pop <= push_range_end) {
+		/* The push range and the pop range overlap */
+		int overlap_len;
+
+		verify_push_start = txmsg_start_push;
+		verify_pop_start = txmsg_start_pop;
+		if (txmsg_start_push < txmsg_start_pop)
+			overlap_len = min(push_range_end - txmsg_start_pop + 1, txmsg_pop);
+		else
+			overlap_len = min(pop_range_end - txmsg_start_push + 1, txmsg_end_push);
+		verify_push_len = max(txmsg_end_push - overlap_len, 0);
+		verify_pop_len = max(txmsg_pop - overlap_len, 0);
+	} else {
+		/* Otherwise */
+		verify_push_start = txmsg_start_push;
+		verify_pop_start = txmsg_start_pop;
+		verify_push_len = txmsg_end_push;
+		verify_pop_len = txmsg_pop;
+	}
+}
+
+static int msg_verify_data(struct msghdr *msg, int size, int chunk_sz,
+			   unsigned char *k_p, int *bytes_cnt_p,
+			   int *check_cnt_p, int *push_p)
+{
+	int bytes_cnt = *bytes_cnt_p, check_cnt = *check_cnt_p, push = *push_p;
+	unsigned char k = *k_p;
+	int i, j;
+
+	for (i = 0, j = 0; i < msg->msg_iovlen && size; i++, j = 0) {
+		unsigned char *d = msg->msg_iov[i].iov_base;
+
+		/* Special case test for skb ingress + ktls */
+		if (i == 0 && txmsg_ktls_skb) {
+			if (msg->msg_iov[i].iov_len < 4)
+				return -EDATAINTEGRITY;
+			if (memcmp(d, "PASS", 4) != 0) {
+				fprintf(stderr,
+					"detected skb data error with skb ingress update @iov[%i]:%i \"%02x %02x %02x %02x\" != \"PASS\"\n",
+					i, 0, d[0], d[1], d[2], d[3]);
+				return -EDATAINTEGRITY;
+			}
+			j = 4; /* advance index past PASS header */
+		}
+
+		for (; j < msg->msg_iov[i].iov_len && size; j++) {
+			if (push > 0 &&
+			    check_cnt == verify_push_start + verify_push_len - push) {
+				int skipped;
+revisit_push:
+				skipped = push;
+				if (j + push >= msg->msg_iov[i].iov_len)
+					skipped = msg->msg_iov[i].iov_len - j;
+				push -= skipped;
+				size -= skipped;
+				j += skipped - 1;
+				check_cnt += skipped;
+				continue;
+			}
+
+			if (verify_pop_len > 0 && check_cnt == verify_pop_start) {
+				bytes_cnt += verify_pop_len;
+				check_cnt += verify_pop_len;
+				k += verify_pop_len;
+
+				if (bytes_cnt == chunk_sz) {
+					k = 0;
+					bytes_cnt = 0;
+					check_cnt = 0;
+					push = verify_push_len;
+				}
+
+				if (push > 0 &&
+				    check_cnt == verify_push_start + verify_push_len - push)
+					goto revisit_push;
+			}
+
+			if (d[j] != k++) {
+				fprintf(stderr,
+					"detected data corruption @iov[%i]:%i %02x != %02x, %02x ?= %02x\n",
+					i, j, d[j], k - 1, d[j+1], k);
+				return -EDATAINTEGRITY;
+			}
+			bytes_cnt++;
+			check_cnt++;
+			if (bytes_cnt == chunk_sz) {
+				k = 0;
+				bytes_cnt = 0;
+				check_cnt = 0;
+				push = verify_push_len;
+			}
+			size--;
+		}
+	}
+	*k_p = k;
+	*bytes_cnt_p = bytes_cnt;
+	*check_cnt_p = check_cnt;
+	*push_p = push;
+	return 0;
+}
+
+static int msg_loop(int fd, int iov_count, int iov_length, int cnt,
+		    struct msg_stats *s, bool tx,
+		    struct sockmap_options *opt)
+{
+	struct msghdr msg = {0}, msg_peek = {0};
+	int err, i, flags = MSG_NOSIGNAL;
+	bool drop = opt->drop_expected;
+	bool data = opt->data_test;
+	int iov_alloc_length = iov_length;
+
+	if (!tx && opt->check_recved_len)
+		iov_alloc_length *= 2;
+
+	err = msg_alloc_iov(&msg, iov_count, iov_alloc_length, data, tx);
+	if (err)
+		goto out_errno;
+	if (peek_flag) {
+		err = msg_alloc_iov(&msg_peek, iov_count, iov_length, data, tx);
+		if (err)
+			goto out_errno;
+	}
+
+	if (tx) {
+		clock_gettime(CLOCK_MONOTONIC, &s->start);
+		for (i = 0; i < cnt; i++) {
+			int sent;
+
+			errno = 0;
+			sent = sendmsg(fd, &msg, flags);
+
+			if (!drop && sent < 0) {
+				if (opt->tx_wait_mem && errno == EACCES) {
+					errno = 0;
+					goto out_errno;
+				}
+				perror("sendmsg loop error");
+				goto out_errno;
+			} else if (drop && sent >= 0) {
+				fprintf(stderr,
+					"sendmsg loop error expected: %i errno %i\n",
+					sent, errno);
+				errno = -EIO;
+				goto out_errno;
+			}
+			if (sent > 0)
+				s->bytes_sent += sent;
+		}
+		clock_gettime(CLOCK_MONOTONIC, &s->end);
+	} else {
+		float total_bytes, txmsg_pop_total, txmsg_push_total;
+		int slct, recvp = 0, recv, max_fd = fd;
+		int fd_flags = O_NONBLOCK;
+		struct timeval timeout;
+		unsigned char k = 0;
+		int bytes_cnt = 0;
+		int check_cnt = 0;
+		int push = 0;
+		fd_set w;
+
+		fcntl(fd, fd_flags);
+		/* Account for pop bytes noting each iteration of apply will
+		 * call msg_pop_data helper so we need to account for this
+		 * by calculating the number of apply iterations. Note user
+		 * of the tool can create cases where no data is sent by
+		 * manipulating pop/push/pull/etc. For example txmsg_apply 1
+		 * with txmsg_pop 1 will try to apply 1B at a time but each
+		 * iteration will then pop 1B so no data will ever be sent.
+		 * This is really only useful for testing edge cases in code
+		 * paths.
+		 */
+		total_bytes = (float)iov_length * (float)cnt;
+		if (!opt->sendpage)
+			total_bytes *= (float)iov_count;
+		if (txmsg_apply) {
+			txmsg_push_total = txmsg_end_push * (total_bytes / txmsg_apply);
+			txmsg_pop_total = txmsg_pop * (total_bytes / txmsg_apply);
+		} else {
+			txmsg_push_total = txmsg_end_push * cnt;
+			txmsg_pop_total = txmsg_pop * cnt;
+		}
+		total_bytes += txmsg_push_total;
+		total_bytes -= txmsg_pop_total;
+		if (data) {
+			msg_verify_date_prep();
+			push = verify_push_len;
+		}
+		err = clock_gettime(CLOCK_MONOTONIC, &s->start);
+		if (err < 0)
+			perror("recv start time");
+		while (s->bytes_recvd < total_bytes) {
+			if (txmsg_cork) {
+				timeout.tv_sec = 0;
+				timeout.tv_usec = 300000;
+			} else {
+				timeout.tv_sec = 3;
+				timeout.tv_usec = 0;
+			}
+
+			/* FD sets */
+			FD_ZERO(&w);
+			FD_SET(fd, &w);
+
+			slct = select(max_fd + 1, &w, NULL, NULL, &timeout);
+			if (slct == -1) {
+				perror("select()");
+				clock_gettime(CLOCK_MONOTONIC, &s->end);
+				goto out_errno;
+			} else if (!slct) {
+				if (opt->verbose)
+					fprintf(stderr, "unexpected timeout: recved %zu/%f pop_total %f\n", s->bytes_recvd, total_bytes, txmsg_pop_total);
+				errno = -EIO;
+				clock_gettime(CLOCK_MONOTONIC, &s->end);
+				goto out_errno;
+			}
+
+			if (opt->tx_wait_mem) {
+				FD_ZERO(&w);
+				FD_SET(fd, &w);
+				slct = select(max_fd + 1, NULL, NULL, &w, &timeout);
+				errno = 0;
+				close(fd);
+				goto out_errno;
+			}
+
+			errno = 0;
+			if (peek_flag) {
+				flags |= MSG_PEEK;
+				recvp = recvmsg(fd, &msg_peek, flags);
+				if (recvp < 0) {
+					if (errno != EWOULDBLOCK) {
+						clock_gettime(CLOCK_MONOTONIC, &s->end);
+						goto out_errno;
+					}
+				}
+				flags = 0;
+			}
+
+			recv = recvmsg(fd, &msg, flags);
+			if (recv < 0) {
+				if (errno != EWOULDBLOCK) {
+					clock_gettime(CLOCK_MONOTONIC, &s->end);
+					perror("recv failed()");
+					goto out_errno;
+				}
+			}
+
+			if (recv > 0)
+				s->bytes_recvd += recv;
+
+			if (opt->check_recved_len && s->bytes_recvd > total_bytes) {
+				errno = EMSGSIZE;
+				fprintf(stderr, "recv failed(), bytes_recvd:%zd, total_bytes:%f\n",
+						s->bytes_recvd, total_bytes);
+				goto out_errno;
+			}
+
+			if (data) {
+				int chunk_sz = opt->sendpage ?
+						iov_length :
+						iov_length * iov_count;
+
+				errno = msg_verify_data(&msg, recv, chunk_sz, &k, &bytes_cnt,
+							&check_cnt, &push);
+				if (errno) {
+					perror("data verify msg failed");
+					goto out_errno;
+				}
+				if (recvp) {
+					errno = msg_verify_data(&msg_peek,
+								recvp,
+								chunk_sz,
+								&k,
+								&bytes_cnt,
+								&check_cnt,
+								&push);
+					if (errno) {
+						perror("data verify msg_peek failed");
+						goto out_errno;
+					}
+				}
+			}
+		}
+		clock_gettime(CLOCK_MONOTONIC, &s->end);
+	}
+
+	msg_free_iov(&msg);
+	msg_free_iov(&msg_peek);
+	return err;
+out_errno:
+	msg_free_iov(&msg);
+	msg_free_iov(&msg_peek);
+	return errno;
+}
+
+static float giga = 1000000000;
+
+static inline float sentBps(struct msg_stats s)
+{
+	return s.bytes_sent / (s.end.tv_sec - s.start.tv_sec);
+}
+
+static inline float recvdBps(struct msg_stats s)
+{
+	return s.bytes_recvd / (s.end.tv_sec - s.start.tv_sec);
+}
+
+static int sendmsg_test(struct sockmap_options *opt)
+{
+	float sent_Bps = 0, recvd_Bps = 0;
+	int rx_fd, txpid, rxpid, err = 0;
+	struct msg_stats s = {0};
+	int iov_count = opt->iov_count;
+	int iov_buf = opt->iov_length;
+	int rx_status, tx_status;
+	int cnt = opt->rate;
+
+	errno = 0;
+
+	if (opt->base)
+		rx_fd = p1;
+	else
+		rx_fd = p2;
+
+	if (ktls) {
+		/* Redirecting into non-TLS socket which sends into a TLS
+		 * socket is not a valid test. So in this case lets not
+		 * enable kTLS but still run the test.
+		 */
+		if (!txmsg_redir || txmsg_ingress) {
+			err = sockmap_init_ktls(opt->verbose, rx_fd);
+			if (err)
+				return err;
+		}
+		err = sockmap_init_ktls(opt->verbose, c1);
+		if (err)
+			return err;
+	}
+
+	if (opt->tx_wait_mem) {
+		struct timeval timeout;
+		int rxtx_buf_len = 1024;
+
+		timeout.tv_sec = 3;
+		timeout.tv_usec = 0;
+
+		err = setsockopt(c2, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(struct timeval));
+		err |= setsockopt(c2, SOL_SOCKET, SO_SNDBUFFORCE, &rxtx_buf_len, sizeof(int));
+		err |= setsockopt(p2, SOL_SOCKET, SO_RCVBUFFORCE, &rxtx_buf_len, sizeof(int));
+		if (err) {
+			perror("setsockopt failed()");
+			return errno;
+		}
+	}
+
+	rxpid = fork();
+	if (rxpid == 0) {
+		if (opt->drop_expected || txmsg_ktls_skb_drop)
+			_exit(0);
+
+		if (!iov_buf) /* zero bytes sent case */
+			_exit(0);
+
+		if (opt->sendpage)
+			iov_count = 1;
+		err = msg_loop(rx_fd, iov_count, iov_buf,
+			       cnt, &s, false, opt);
+		if (opt->verbose > 1)
+			fprintf(stderr,
+				"msg_loop_rx: iov_count %i iov_buf %i cnt %i err %i\n",
+				iov_count, iov_buf, cnt, err);
+		if (s.end.tv_sec - s.start.tv_sec) {
+			sent_Bps = sentBps(s);
+			recvd_Bps = recvdBps(s);
+		}
+		if (opt->verbose > 1)
+			fprintf(stdout,
+				"rx_sendmsg: TX: %zuB %fB/s %fGB/s RX: %zuB %fB/s %fGB/s %s\n",
+				s.bytes_sent, sent_Bps, sent_Bps/giga,
+				s.bytes_recvd, recvd_Bps, recvd_Bps/giga,
+				peek_flag ? "(peek_msg)" : "");
+		if (err && err != -EDATAINTEGRITY && txmsg_cork)
+			err = 0;
+		exit(err ? 1 : 0);
+	} else if (rxpid == -1) {
+		perror("msg_loop_rx");
+		return errno;
+	}
+
+	if (opt->tx_wait_mem)
+		close(c2);
+
+	txpid = fork();
+	if (txpid == 0) {
+		if (opt->sendpage)
+			err = msg_loop_sendpage(c1, iov_buf, cnt, &s, opt);
+		else
+			err = msg_loop(c1, iov_count, iov_buf,
+				       cnt, &s, true, opt);
+
+		if (err)
+			fprintf(stderr,
+				"msg_loop_tx: iov_count %i iov_buf %i cnt %i err %i\n",
+				iov_count, iov_buf, cnt, err);
+		if (s.end.tv_sec - s.start.tv_sec) {
+			sent_Bps = sentBps(s);
+			recvd_Bps = recvdBps(s);
+		}
+		if (opt->verbose > 1)
+			fprintf(stdout,
+				"tx_sendmsg: TX: %zuB %fB/s %f GB/s RX: %zuB %fB/s %fGB/s\n",
+				s.bytes_sent, sent_Bps, sent_Bps/giga,
+				s.bytes_recvd, recvd_Bps, recvd_Bps/giga);
+		exit(err ? 1 : 0);
+	} else if (txpid == -1) {
+		perror("msg_loop_tx");
+		return errno;
+	}
+
+	assert(waitpid(rxpid, &rx_status, 0) == rxpid);
+	assert(waitpid(txpid, &tx_status, 0) == txpid);
+	if (WIFEXITED(rx_status)) {
+		err = WEXITSTATUS(rx_status);
+		if (err) {
+			fprintf(stderr, "rx thread exited with err %d.\n", err);
+			goto out;
+		}
+	}
+	if (WIFEXITED(tx_status)) {
+		err = WEXITSTATUS(tx_status);
+		if (err)
+			fprintf(stderr, "tx thread exited with err %d.\n", err);
+	}
+out:
+	return err;
+}
+
+static int forever_ping_pong(int rate, struct sockmap_options *opt)
+{
+	struct timeval timeout;
+	char buf[1024] = {0};
+	int sc;
+
+	timeout.tv_sec = 10;
+	timeout.tv_usec = 0;
+
+	/* Ping/Pong data from client to server */
+	sc = send(c1, buf, sizeof(buf), 0);
+	if (sc < 0) {
+		perror("send failed()");
+		return sc;
+	}
+
+	do {
+		int s, rc, i, max_fd = p2;
+		fd_set w;
+
+		/* FD sets */
+		FD_ZERO(&w);
+		FD_SET(c1, &w);
+		FD_SET(c2, &w);
+		FD_SET(p1, &w);
+		FD_SET(p2, &w);
+
+		s = select(max_fd + 1, &w, NULL, NULL, &timeout);
+		if (s == -1) {
+			perror("select()");
+			break;
+		} else if (!s) {
+			fprintf(stderr, "unexpected timeout\n");
+			break;
+		}
+
+		for (i = 0; i <= max_fd && s > 0; ++i) {
+			if (!FD_ISSET(i, &w))
+				continue;
+
+			s--;
+
+			rc = recv(i, buf, sizeof(buf), 0);
+			if (rc < 0) {
+				if (errno != EWOULDBLOCK) {
+					perror("recv failed()");
+					return rc;
+				}
+			}
+
+			if (rc == 0) {
+				close(i);
+				break;
+			}
+
+			sc = send(i, buf, rc, 0);
+			if (sc < 0) {
+				perror("send failed()");
+				return sc;
+			}
+		}
+
+		if (rate)
+			sleep(rate);
+
+		if (opt->verbose) {
+			printf(".");
+			fflush(stdout);
+
+		}
+	} while (running);
+
+	return 0;
+}
+
+enum {
+	SELFTESTS,
+	PING_PONG,
+	SENDMSG,
+	BASE,
+	BASE_SENDPAGE,
+	SENDPAGE,
+};
+
+static int run_options(struct sockmap_options *options, int cg_fd,  int test)
+{
+	int i, key, next_key, err, zero = 0;
+	struct bpf_program *tx_prog;
+
+	/* If base test skip BPF setup */
+	if (test == BASE || test == BASE_SENDPAGE)
+		goto run;
+
+	/* Attach programs to sockmap */
+	if (!txmsg_omit_skb_parser) {
+		links[0] = bpf_program__attach_sockmap(progs[0], map_fd[0]);
+		if (!links[0]) {
+			fprintf(stderr,
+				"ERROR: bpf_program__attach_sockmap (sockmap %i->%i): (%s)\n",
+				bpf_program__fd(progs[0]), map_fd[0], strerror(errno));
+			return -1;
+		}
+	}
+
+	links[1] = bpf_program__attach_sockmap(progs[1], map_fd[0]);
+	if (!links[1]) {
+		fprintf(stderr, "ERROR: bpf_program__attach_sockmap (sockmap): (%s)\n",
+			strerror(errno));
+		return -1;
+	}
+
+	/* Attach programs to TLS sockmap */
+	if (txmsg_ktls_skb) {
+		if (!txmsg_omit_skb_parser) {
+			links[2] = bpf_program__attach_sockmap(progs[0], map_fd[8]);
+			if (!links[2]) {
+				fprintf(stderr,
+					"ERROR: bpf_program__attach_sockmap (TLS sockmap %i->%i): (%s)\n",
+					bpf_program__fd(progs[0]), map_fd[8], strerror(errno));
+				return -1;
+			}
+		}
+
+		links[3] = bpf_program__attach_sockmap(progs[2], map_fd[8]);
+		if (!links[3]) {
+			fprintf(stderr, "ERROR: bpf_program__attach_sockmap (TLS sockmap): (%s)\n",
+				strerror(errno));
+			return -1;
+		}
+	}
+
+	/* Attach to cgroups */
+	err = bpf_prog_attach(bpf_program__fd(progs[3]), cg_fd, BPF_CGROUP_SOCK_OPS, 0);
+	if (err) {
+		fprintf(stderr, "ERROR: bpf_prog_attach (groups): %d (%s)\n",
+			err, strerror(errno));
+		return err;
+	}
+
+run:
+	err = sockmap_init_sockets(options->verbose);
+	if (err) {
+		fprintf(stderr, "ERROR: test socket failed: %d\n", err);
+		goto out;
+	}
+
+	/* Attach txmsg program to sockmap */
+	if (txmsg_pass)
+		tx_prog = progs[4];
+	else if (txmsg_redir)
+		tx_prog = progs[5];
+	else if (txmsg_apply)
+		tx_prog = progs[6];
+	else if (txmsg_cork)
+		tx_prog = progs[7];
+	else if (txmsg_drop)
+		tx_prog = progs[8];
+	else
+		tx_prog = NULL;
+
+	if (tx_prog) {
+		int redir_fd;
+
+		links[4] = bpf_program__attach_sockmap(tx_prog, map_fd[1]);
+		if (!links[4]) {
+			fprintf(stderr,
+				"ERROR: bpf_program__attach_sockmap (txmsg): (%s)\n",
+				strerror(errno));
+			err = -1;
+			goto out;
+		}
+
+		i = 0;
+		err = bpf_map_update_elem(map_fd[1], &i, &c1, BPF_ANY);
+		if (err) {
+			fprintf(stderr,
+				"ERROR: bpf_map_update_elem (txmsg):  %d (%s\n",
+				err, strerror(errno));
+			goto out;
+		}
+
+		if (txmsg_redir)
+			redir_fd = c2;
+		else
+			redir_fd = c1;
+
+		err = bpf_map_update_elem(map_fd[2], &i, &redir_fd, BPF_ANY);
+		if (err) {
+			fprintf(stderr,
+				"ERROR: bpf_map_update_elem (txmsg):  %d (%s\n",
+				err, strerror(errno));
+			goto out;
+		}
+
+		if (txmsg_apply) {
+			err = bpf_map_update_elem(map_fd[3],
+						  &i, &txmsg_apply, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (apply_bytes):  %d (%s\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_cork) {
+			err = bpf_map_update_elem(map_fd[4],
+						  &i, &txmsg_cork, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (cork_bytes):  %d (%s\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_start) {
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_start, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_start):  %d (%s)\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_end) {
+			i = 1;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_end, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_end):  %d (%s)\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_start_push) {
+			i = 2;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_start_push, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_start_push):  %d (%s)\n",
+					err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_end_push) {
+			i = 3;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_end_push, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem %i@%i (txmsg_end_push):  %d (%s)\n",
+					txmsg_end_push, i, err, strerror(errno));
+				goto out;
+			}
+		}
+
+		if (txmsg_start_pop) {
+			i = 4;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_start_pop, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem %i@%i (txmsg_start_pop):  %d (%s)\n",
+					txmsg_start_pop, i, err, strerror(errno));
+				goto out;
+			}
+		} else {
+			i = 4;
+			bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_start_pop, BPF_ANY);
+		}
+
+		if (txmsg_pop) {
+			i = 5;
+			err = bpf_map_update_elem(map_fd[5],
+						  &i, &txmsg_pop, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem %i@%i (txmsg_pop):  %d (%s)\n",
+					txmsg_pop, i, err, strerror(errno));
+				goto out;
+			}
+		} else {
+			i = 5;
+			bpf_map_update_elem(map_fd[5],
+					    &i, &txmsg_pop, BPF_ANY);
+
+		}
+
+		if (txmsg_ingress) {
+			int in = BPF_F_INGRESS;
+
+			i = 0;
+			err = bpf_map_update_elem(map_fd[6], &i, &in, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
+					err, strerror(errno));
+			}
+			i = 1;
+			err = bpf_map_update_elem(map_fd[1], &i, &p1, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p1 txmsg): %d (%s)\n",
+					err, strerror(errno));
+			}
+			err = bpf_map_update_elem(map_fd[2], &i, &p1, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p1 redir): %d (%s)\n",
+					err, strerror(errno));
+			}
+
+			i = 2;
+			err = bpf_map_update_elem(map_fd[2], &i, &p2, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (p2 txmsg): %d (%s)\n",
+					err, strerror(errno));
+			}
+		}
+
+		if (txmsg_ktls_skb) {
+			int ingress = BPF_F_INGRESS;
+
+			i = 0;
+			err = bpf_map_update_elem(map_fd[8], &i, &p2, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (c1 sockmap): %d (%s)\n",
+					err, strerror(errno));
+			}
+
+			if (txmsg_ktls_skb_redir) {
+				i = 1;
+				err = bpf_map_update_elem(map_fd[7],
+							  &i, &ingress, BPF_ANY);
+				if (err) {
+					fprintf(stderr,
+						"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
+						err, strerror(errno));
+				}
+			}
+
+			if (txmsg_ktls_skb_drop) {
+				i = 1;
+				err = bpf_map_update_elem(map_fd[7], &i, &i, BPF_ANY);
+			}
+		}
+
+		if (txmsg_redir_skb) {
+			int skb_fd = (test == SENDMSG || test == SENDPAGE) ?
+					p2 : p1;
+			int ingress = BPF_F_INGRESS;
+
+			i = 0;
+			err = bpf_map_update_elem(map_fd[7],
+						  &i, &ingress, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (txmsg_ingress): %d (%s)\n",
+					err, strerror(errno));
+			}
+
+			i = 3;
+			err = bpf_map_update_elem(map_fd[0], &i, &skb_fd, BPF_ANY);
+			if (err) {
+				fprintf(stderr,
+					"ERROR: bpf_map_update_elem (c1 sockmap): %d (%s)\n",
+					err, strerror(errno));
+			}
+		}
+	}
+
+	if (skb_use_parser) {
+		i = 2;
+		err = bpf_map_update_elem(map_fd[7], &i, &skb_use_parser, BPF_ANY);
+	}
+
+	if (txmsg_drop)
+		options->drop_expected = true;
+
+	if (test == PING_PONG)
+		err = forever_ping_pong(options->rate, options);
+	else if (test == SENDMSG) {
+		options->base = false;
+		options->sendpage = false;
+		err = sendmsg_test(options);
+	} else if (test == SENDPAGE) {
+		options->base = false;
+		options->sendpage = true;
+		err = sendmsg_test(options);
+	} else if (test == BASE) {
+		options->base = true;
+		options->sendpage = false;
+		err = sendmsg_test(options);
+	} else if (test == BASE_SENDPAGE) {
+		options->base = true;
+		options->sendpage = true;
+		err = sendmsg_test(options);
+	} else
+		fprintf(stderr, "unknown test\n");
+out:
+	/* Detach and zero all the maps */
+	bpf_prog_detach2(bpf_program__fd(progs[3]), cg_fd, BPF_CGROUP_SOCK_OPS);
+
+	for (i = 0; i < ARRAY_SIZE(links); i++) {
+		if (links[i])
+			bpf_link__detach(links[i]);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(map_fd); i++) {
+		key = next_key = 0;
+		bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
+		while (bpf_map_get_next_key(map_fd[i], &key, &next_key) == 0) {
+			bpf_map_update_elem(map_fd[i], &key, &zero, BPF_ANY);
+			key = next_key;
+		}
+	}
+
+	close(s1);
+	close(s2);
+	close(p1);
+	close(p2);
+	close(c1);
+	close(c2);
+	return err;
+}
+
+static char *test_to_str(int test)
+{
+	switch (test) {
+	case SENDMSG:
+		return "sendmsg";
+	case SENDPAGE:
+		return "sendpage";
+	}
+	return "unknown";
+}
+
+static void append_str(char *dst, const char *src, size_t dst_cap)
+{
+	size_t avail = dst_cap - strlen(dst);
+
+	if (avail <= 1) /* just zero byte could be written */
+		return;
+
+	strncat(dst, src, avail - 1); /* strncat() adds + 1 for zero byte */
+}
+
+#define OPTSTRING 60
+static void test_options(char *options)
+{
+	char tstr[OPTSTRING];
+
+	memset(options, 0, OPTSTRING);
+
+	if (txmsg_pass)
+		append_str(options, "pass,", OPTSTRING);
+	if (txmsg_redir)
+		append_str(options, "redir,", OPTSTRING);
+	if (txmsg_drop)
+		append_str(options, "drop,", OPTSTRING);
+	if (txmsg_apply) {
+		snprintf(tstr, OPTSTRING, "apply %d,", txmsg_apply);
+		append_str(options, tstr, OPTSTRING);
+	}
+	if (txmsg_cork) {
+		snprintf(tstr, OPTSTRING, "cork %d,", txmsg_cork);
+		append_str(options, tstr, OPTSTRING);
+	}
+	if (txmsg_start) {
+		snprintf(tstr, OPTSTRING, "start %d,", txmsg_start);
+		append_str(options, tstr, OPTSTRING);
+	}
+	if (txmsg_end) {
+		snprintf(tstr, OPTSTRING, "end %d,", txmsg_end);
+		append_str(options, tstr, OPTSTRING);
+	}
+	if (txmsg_start_pop) {
+		snprintf(tstr, OPTSTRING, "pop (%d,%d),",
+			 txmsg_start_pop, txmsg_start_pop + txmsg_pop);
+		append_str(options, tstr, OPTSTRING);
+	}
+	if (txmsg_ingress)
+		append_str(options, "ingress,", OPTSTRING);
+	if (txmsg_redir_skb)
+		append_str(options, "redir_skb,", OPTSTRING);
+	if (txmsg_ktls_skb)
+		append_str(options, "ktls_skb,", OPTSTRING);
+	if (ktls)
+		append_str(options, "ktls,", OPTSTRING);
+	if (peek_flag)
+		append_str(options, "peek,", OPTSTRING);
+}
+
+static int __test_exec(int cgrp, int test, struct sockmap_options *opt)
+{
+	char *options = calloc(OPTSTRING, sizeof(char));
+	int err;
+
+	if (test == SENDPAGE)
+		opt->sendpage = true;
+	else
+		opt->sendpage = false;
+
+	if (txmsg_drop)
+		opt->drop_expected = true;
+	else
+		opt->drop_expected = false;
+
+	test_options(options);
+
+	if (opt->verbose) {
+		fprintf(stdout,
+			" [TEST %i]: (%i, %i, %i, %s, %s): ",
+			test_cnt, opt->rate, opt->iov_count, opt->iov_length,
+			test_to_str(test), options);
+		fflush(stdout);
+	}
+	err = run_options(opt, cgrp, test);
+	if (opt->verbose)
+		fprintf(stdout, " %s\n", !err ? "PASS" : "FAILED");
+	test_cnt++;
+	!err ? passed++ : failed++;
+	free(options);
+	return err;
+}
+
+static void test_exec(int cgrp, struct sockmap_options *opt)
+{
+	int type = strcmp(opt->map, BPF_SOCKMAP_FILENAME);
+	int err;
+
+	if (type == 0) {
+		test_start();
+		err = __test_exec(cgrp, SENDMSG, opt);
+		if (err)
+			test_fail();
+	} else {
+		test_start();
+		err = __test_exec(cgrp, SENDPAGE, opt);
+		if (err)
+			test_fail();
+	}
+}
+
+static void test_send_one(struct sockmap_options *opt, int cgrp)
+{
+	opt->iov_length = 1;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	test_exec(cgrp, opt);
+
+	opt->iov_length = 1;
+	opt->iov_count = 1024;
+	opt->rate = 1;
+	test_exec(cgrp, opt);
+
+	opt->iov_length = 1024;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	test_exec(cgrp, opt);
+
+}
+
+static void test_send_many(struct sockmap_options *opt, int cgrp)
+{
+	opt->iov_length = 3;
+	opt->iov_count = 1;
+	opt->rate = 512;
+	test_exec(cgrp, opt);
+
+	opt->rate = 100;
+	opt->iov_count = 1;
+	opt->iov_length = 5;
+	test_exec(cgrp, opt);
+}
+
+static void test_send_large(struct sockmap_options *opt, int cgrp)
+{
+	opt->iov_length = 8192;
+	opt->iov_count = 32;
+	opt->rate = 2;
+	test_exec(cgrp, opt);
+}
+
+static void test_send(struct sockmap_options *opt, int cgrp)
+{
+	test_send_one(opt, cgrp);
+	test_send_many(opt, cgrp);
+	test_send_large(opt, cgrp);
+	sched_yield();
+}
+
+static void test_txmsg_pass(int cgrp, struct sockmap_options *opt)
+{
+	/* Test small and large iov_count values with pass/redir/apply/cork */
+	txmsg_pass = 1;
+	test_send(opt, cgrp);
+}
+
+static void test_txmsg_redir(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_redir = 1;
+	test_send(opt, cgrp);
+}
+
+static void test_txmsg_redir_wait_sndmem(int cgrp, struct sockmap_options *opt)
+{
+	opt->tx_wait_mem = true;
+	txmsg_redir = 1;
+	test_send_large(opt, cgrp);
+
+	txmsg_redir = 1;
+	txmsg_apply = 4097;
+	test_send_large(opt, cgrp);
+	opt->tx_wait_mem = false;
+}
+
+static void test_txmsg_drop(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_drop = 1;
+	test_send(opt, cgrp);
+}
+
+static void test_txmsg_ingress_redir(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_pass = txmsg_drop = 0;
+	txmsg_ingress = txmsg_redir = 1;
+	test_send(opt, cgrp);
+}
+
+static void test_txmsg_skb(int cgrp, struct sockmap_options *opt)
+{
+	bool data = opt->data_test;
+	int k = ktls;
+
+	opt->data_test = true;
+	ktls = 1;
+
+	txmsg_pass = txmsg_drop = 0;
+	txmsg_ingress = txmsg_redir = 0;
+	txmsg_ktls_skb = 1;
+	txmsg_pass = 1;
+
+	/* Using data verification so ensure iov layout is
+	 * expected from test receiver side. e.g. has enough
+	 * bytes to write test code.
+	 */
+	opt->iov_length = 100;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	test_exec(cgrp, opt);
+
+	txmsg_ktls_skb_drop = 1;
+	test_exec(cgrp, opt);
+
+	txmsg_ktls_skb_drop = 0;
+	txmsg_ktls_skb_redir = 1;
+	test_exec(cgrp, opt);
+	txmsg_ktls_skb_redir = 0;
+
+	/* Tests that omit skb_parser */
+	txmsg_omit_skb_parser = 1;
+	ktls = 0;
+	txmsg_ktls_skb = 0;
+	test_exec(cgrp, opt);
+
+	txmsg_ktls_skb_drop = 1;
+	test_exec(cgrp, opt);
+	txmsg_ktls_skb_drop = 0;
+
+	txmsg_ktls_skb_redir = 1;
+	test_exec(cgrp, opt);
+
+	ktls = 1;
+	test_exec(cgrp, opt);
+	txmsg_omit_skb_parser = 0;
+
+	opt->data_test = data;
+	ktls = k;
+}
+
+/* Test cork with hung data. This tests poor usage patterns where
+ * cork can leave data on the ring if user program is buggy and
+ * doesn't flush them somehow. They do take some time however
+ * because they wait for a timeout. Test pass, redir and cork with
+ * apply logic. Use cork size of 4097 with send_large to avoid
+ * aligning cork size with send size.
+ */
+static void test_txmsg_cork_hangs(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_cork = 4097;
+	txmsg_apply = 4097;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 0;
+	txmsg_cork = 4097;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_apply = 4097;
+	txmsg_cork = 4097;
+	test_send_large(opt, cgrp);
+}
+
+static void test_txmsg_pull(int cgrp, struct sockmap_options *opt)
+{
+	/* Test basic start/end */
+	txmsg_pass = 1;
+	txmsg_start = 1;
+	txmsg_end = 2;
+	test_send(opt, cgrp);
+
+	/* Test >4k pull */
+	txmsg_pass = 1;
+	txmsg_start = 4096;
+	txmsg_end = 9182;
+	test_send_large(opt, cgrp);
+
+	/* Test pull + redirect */
+	txmsg_redir = 1;
+	txmsg_start = 1;
+	txmsg_end = 2;
+	test_send(opt, cgrp);
+
+	/* Test pull + cork */
+	txmsg_redir = 0;
+	txmsg_cork = 512;
+	txmsg_start = 1;
+	txmsg_end = 2;
+	test_send_many(opt, cgrp);
+
+	/* Test pull + cork + redirect */
+	txmsg_redir = 1;
+	txmsg_cork = 512;
+	txmsg_start = 1;
+	txmsg_end = 2;
+	test_send_many(opt, cgrp);
+}
+
+static void test_txmsg_pop(int cgrp, struct sockmap_options *opt)
+{
+	bool data = opt->data_test;
+
+	/* Test basic pop */
+	txmsg_pass = 1;
+	txmsg_start_pop = 1;
+	txmsg_pop = 2;
+	test_send_many(opt, cgrp);
+
+	/* Test pop with >4k */
+	txmsg_pass = 1;
+	txmsg_start_pop = 4096;
+	txmsg_pop = 4096;
+	test_send_large(opt, cgrp);
+
+	/* Test pop + redirect */
+	txmsg_redir = 1;
+	txmsg_start_pop = 1;
+	txmsg_pop = 2;
+	test_send_many(opt, cgrp);
+
+	/* TODO: Test for pop + cork should be different,
+	 * - It makes the layout of the received data difficult
+	 * - It makes it hard to calculate the total_bytes in the recvmsg
+	 * Temporarily skip the data integrity test for this case now.
+	 */
+	opt->data_test = false;
+	/* Test pop + cork */
+	txmsg_redir = 0;
+	txmsg_cork = 512;
+	txmsg_start_pop = 1;
+	txmsg_pop = 2;
+	test_send_many(opt, cgrp);
+
+	/* Test pop + redirect + cork */
+	txmsg_redir = 1;
+	txmsg_cork = 4;
+	txmsg_start_pop = 1;
+	txmsg_pop = 2;
+	test_send_many(opt, cgrp);
+	opt->data_test = data;
+}
+
+static void test_txmsg_push(int cgrp, struct sockmap_options *opt)
+{
+	bool data = opt->data_test;
+
+	/* Test basic push */
+	txmsg_pass = 1;
+	txmsg_start_push = 1;
+	txmsg_end_push = 1;
+	test_send(opt, cgrp);
+
+	/* Test push 4kB >4k */
+	txmsg_pass = 1;
+	txmsg_start_push = 4096;
+	txmsg_end_push = 4096;
+	test_send_large(opt, cgrp);
+
+	/* Test push + redirect */
+	txmsg_redir = 1;
+	txmsg_start_push = 1;
+	txmsg_end_push = 2;
+	test_send_many(opt, cgrp);
+
+	/* TODO: Test for push + cork should be different,
+	 * - It makes the layout of the received data difficult
+	 * - It makes it hard to calculate the total_bytes in the recvmsg
+	 * Temporarily skip the data integrity test for this case now.
+	 */
+	opt->data_test = false;
+	/* Test push + cork */
+	txmsg_redir = 0;
+	txmsg_cork = 512;
+	txmsg_start_push = 1;
+	txmsg_end_push = 2;
+	test_send_many(opt, cgrp);
+	opt->data_test = data;
+}
+
+static void test_txmsg_push_pop(int cgrp, struct sockmap_options *opt)
+{
+	/* Test push/pop range overlapping */
+	txmsg_pass = 1;
+	txmsg_start_push = 1;
+	txmsg_end_push = 10;
+	txmsg_start_pop = 5;
+	txmsg_pop = 4;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_start_push = 1;
+	txmsg_end_push = 10;
+	txmsg_start_pop = 5;
+	txmsg_pop = 16;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_start_push = 5;
+	txmsg_end_push = 4;
+	txmsg_start_pop = 1;
+	txmsg_pop = 10;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_start_push = 5;
+	txmsg_end_push = 16;
+	txmsg_start_pop = 1;
+	txmsg_pop = 10;
+	test_send_large(opt, cgrp);
+
+	/* Test push/pop range non-overlapping */
+	txmsg_pass = 1;
+	txmsg_start_push = 1;
+	txmsg_end_push = 10;
+	txmsg_start_pop = 16;
+	txmsg_pop = 4;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_start_push = 16;
+	txmsg_end_push = 10;
+	txmsg_start_pop = 5;
+	txmsg_pop = 4;
+	test_send_large(opt, cgrp);
+}
+
+static void test_txmsg_apply(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_ingress = 0;
+	txmsg_apply = 1;
+	txmsg_cork = 0;
+	test_send_one(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_ingress = 0;
+	txmsg_apply = 1;
+	txmsg_cork = 0;
+	test_send_one(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_ingress = 1;
+	txmsg_apply = 1;
+	txmsg_cork = 0;
+	test_send_one(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_ingress = 0;
+	txmsg_apply = 1024;
+	txmsg_cork = 0;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_ingress = 0;
+	txmsg_apply = 1024;
+	txmsg_cork = 0;
+	test_send_large(opt, cgrp);
+
+	txmsg_pass = 0;
+	txmsg_redir = 1;
+	txmsg_ingress = 1;
+	txmsg_apply = 1024;
+	txmsg_cork = 0;
+	test_send_large(opt, cgrp);
+}
+
+static void test_txmsg_cork(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 0;
+	txmsg_cork = 1;
+	test_send(opt, cgrp);
+
+	txmsg_pass = 1;
+	txmsg_redir = 0;
+	txmsg_apply = 1;
+	txmsg_cork = 1;
+	test_send(opt, cgrp);
+}
+
+static void test_txmsg_ingress_parser(int cgrp, struct sockmap_options *opt)
+{
+	txmsg_pass = 1;
+	skb_use_parser = 512;
+	if (ktls == 1)
+		skb_use_parser = 570;
+	opt->iov_length = 256;
+	opt->iov_count = 1;
+	opt->rate = 2;
+	test_exec(cgrp, opt);
+}
+
+static void test_txmsg_ingress_parser2(int cgrp, struct sockmap_options *opt)
+{
+	if (ktls == 1)
+		return;
+	skb_use_parser = 10;
+	opt->iov_length = 20;
+	opt->iov_count = 1;
+	opt->rate = 1;
+	opt->check_recved_len = true;
+	test_exec(cgrp, opt);
+	opt->check_recved_len = false;
+}
+
+char *map_names[] = {
+	"sock_map",
+	"sock_map_txmsg",
+	"sock_map_redir",
+	"sock_apply_bytes",
+	"sock_cork_bytes",
+	"sock_bytes",
+	"sock_redir_flags",
+	"sock_skb_opts",
+	"tls_sock_map",
+};
+
+static int populate_progs(char *bpf_file)
+{
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int i = 0;
+	long err;
+
+	obj = bpf_object__open(bpf_file);
+	err = libbpf_get_error(obj);
+	if (err) {
+		char err_buf[256];
+
+		libbpf_strerror(err, err_buf, sizeof(err_buf));
+		printf("Unable to load eBPF objects in file '%s' : %s\n",
+		       bpf_file, err_buf);
+		return -1;
+	}
+
+	i = bpf_object__load(obj);
+	i = 0;
+	bpf_object__for_each_program(prog, obj) {
+		progs[i] = prog;
+		i++;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(map_fd); i++) {
+		maps[i] = bpf_object__find_map_by_name(obj, map_names[i]);
+		map_fd[i] = bpf_map__fd(maps[i]);
+		if (map_fd[i] < 0) {
+			fprintf(stderr, "load_bpf_file: (%i) %s\n",
+				map_fd[i], strerror(errno));
+			return -1;
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(links); i++)
+		links[i] = NULL;
+
+	return 0;
+}
+
+struct _test test[] = {
+	{"txmsg test passthrough", test_txmsg_pass},
+	{"txmsg test redirect", test_txmsg_redir},
+	{"txmsg test redirect wait send mem", test_txmsg_redir_wait_sndmem},
+	{"txmsg test drop", test_txmsg_drop},
+	{"txmsg test ingress redirect", test_txmsg_ingress_redir},
+	{"txmsg test skb", test_txmsg_skb},
+	{"txmsg test apply", test_txmsg_apply},
+	{"txmsg test cork", test_txmsg_cork},
+	{"txmsg test hanging corks", test_txmsg_cork_hangs},
+	{"txmsg test push_data", test_txmsg_push},
+	{"txmsg test pull-data", test_txmsg_pull},
+	{"txmsg test pop-data", test_txmsg_pop},
+	{"txmsg test push/pop data", test_txmsg_push_pop},
+	{"txmsg test ingress parser", test_txmsg_ingress_parser},
+	{"txmsg test ingress parser2", test_txmsg_ingress_parser2},
+};
+
+static int check_whitelist(struct _test *t, struct sockmap_options *opt)
+{
+	char *entry, *ptr;
+
+	if (!opt->whitelist)
+		return 0;
+	ptr = strdup(opt->whitelist);
+	if (!ptr)
+		return -ENOMEM;
+	entry = strtok(ptr, ",");
+	while (entry) {
+		if ((opt->prepend && strstr(opt->prepend, entry) != 0) ||
+		    strstr(opt->map, entry) != 0 ||
+		    strstr(t->title, entry) != 0) {
+			free(ptr);
+			return 0;
+		}
+		entry = strtok(NULL, ",");
+	}
+	free(ptr);
+	return -EINVAL;
+}
+
+static int check_blacklist(struct _test *t, struct sockmap_options *opt)
+{
+	char *entry, *ptr;
+
+	if (!opt->blacklist)
+		return -EINVAL;
+	ptr = strdup(opt->blacklist);
+	if (!ptr)
+		return -ENOMEM;
+	entry = strtok(ptr, ",");
+	while (entry) {
+		if ((opt->prepend && strstr(opt->prepend, entry) != 0) ||
+		    strstr(opt->map, entry) != 0 ||
+		    strstr(t->title, entry) != 0) {
+			free(ptr);
+			return 0;
+		}
+		entry = strtok(NULL, ",");
+	}
+	free(ptr);
+	return -EINVAL;
+}
+
+static int __test_selftests(int cg_fd, struct sockmap_options *opt)
+{
+	int i, err;
+
+	err = populate_progs(opt->map);
+	if (err < 0) {
+		fprintf(stderr, "ERROR: (%i) load bpf failed\n", err);
+		return err;
+	}
+
+	/* Tests basic commands and APIs */
+	for (i = 0; i < ARRAY_SIZE(test); i++) {
+		struct _test t = test[i];
+
+		if (check_whitelist(&t, opt) != 0)
+			continue;
+		if (check_blacklist(&t, opt) == 0)
+			continue;
+
+		test_start_subtest(&t, opt);
+		t.tester(cg_fd, opt);
+		test_end_subtest();
+	}
+
+	return err;
+}
+
+static void test_selftests_sockmap(int cg_fd, struct sockmap_options *opt)
+{
+	opt->map = BPF_SOCKMAP_FILENAME;
+	__test_selftests(cg_fd, opt);
+}
+
+static void test_selftests_sockhash(int cg_fd, struct sockmap_options *opt)
+{
+	opt->map = BPF_SOCKHASH_FILENAME;
+	__test_selftests(cg_fd, opt);
+}
+
+static void test_selftests_ktls(int cg_fd, struct sockmap_options *opt)
+{
+	opt->map = BPF_SOCKHASH_FILENAME;
+	opt->prepend = "ktls";
+	ktls = 1;
+	__test_selftests(cg_fd, opt);
+	ktls = 0;
+}
+
+static int test_selftest(int cg_fd, struct sockmap_options *opt)
+{
+	test_selftests_sockmap(cg_fd, opt);
+	test_selftests_sockhash(cg_fd, opt);
+	test_selftests_ktls(cg_fd, opt);
+	test_print_results();
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int iov_count = 1, length = 1024, rate = 1;
+	struct sockmap_options options = {0};
+	int opt, longindex, err, cg_fd = 0;
+	char *bpf_file = BPF_SOCKMAP_FILENAME;
+	int test = SELFTESTS;
+	bool cg_created = 0;
+
+	while ((opt = getopt_long(argc, argv, ":dhv:c:r:i:l:t:p:q:n:b:",
+				  long_options, &longindex)) != -1) {
+		switch (opt) {
+		case 's':
+			txmsg_start = atoi(optarg);
+			break;
+		case 'e':
+			txmsg_end = atoi(optarg);
+			break;
+		case 'p':
+			txmsg_start_push = atoi(optarg);
+			break;
+		case 'q':
+			txmsg_end_push = atoi(optarg);
+			break;
+		case 'w':
+			txmsg_start_pop = atoi(optarg);
+			break;
+		case 'x':
+			txmsg_pop = atoi(optarg);
+			break;
+		case 'a':
+			txmsg_apply = atoi(optarg);
+			break;
+		case 'k':
+			txmsg_cork = atoi(optarg);
+			break;
+		case 'c':
+			cg_fd = open(optarg, O_DIRECTORY, O_RDONLY);
+			if (cg_fd < 0) {
+				fprintf(stderr,
+					"ERROR: (%i) open cg path failed: %s\n",
+					cg_fd, optarg);
+				return cg_fd;
+			}
+			break;
+		case 'r':
+			rate = atoi(optarg);
+			break;
+		case 'v':
+			options.verbose = 1;
+			if (optarg)
+				options.verbose = atoi(optarg);
+			break;
+		case 'i':
+			iov_count = atoi(optarg);
+			break;
+		case 'l':
+			length = atoi(optarg);
+			break;
+		case 'd':
+			options.data_test = true;
+			break;
+		case 't':
+			if (strcmp(optarg, "ping") == 0) {
+				test = PING_PONG;
+			} else if (strcmp(optarg, "sendmsg") == 0) {
+				test = SENDMSG;
+			} else if (strcmp(optarg, "base") == 0) {
+				test = BASE;
+			} else if (strcmp(optarg, "base_sendpage") == 0) {
+				test = BASE_SENDPAGE;
+			} else if (strcmp(optarg, "sendpage") == 0) {
+				test = SENDPAGE;
+			} else {
+				usage(argv);
+				return -1;
+			}
+			break;
+		case 'n':
+			options.whitelist = strdup(optarg);
+			if (!options.whitelist)
+				return -ENOMEM;
+			break;
+		case 'b':
+			options.blacklist = strdup(optarg);
+			if (!options.blacklist)
+				return -ENOMEM;
+		case 0:
+			break;
+		case 'h':
+		default:
+			usage(argv);
+			return -1;
+		}
+	}
+
+	if (!cg_fd) {
+		cg_fd = cgroup_setup_and_join(CG_PATH);
+		if (cg_fd < 0)
+			return cg_fd;
+		cg_created = 1;
+	}
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	if (test == SELFTESTS) {
+		err = test_selftest(cg_fd, &options);
+		goto out;
+	}
+
+	err = populate_progs(bpf_file);
+	if (err) {
+		fprintf(stderr, "populate program: (%s) %s\n",
+			bpf_file, strerror(errno));
+		return 1;
+	}
+	running = 1;
+
+	/* catch SIGINT */
+	signal(SIGINT, running_handler);
+
+	options.iov_count = iov_count;
+	options.iov_length = length;
+	options.rate = rate;
+
+	err = run_options(&options, cg_fd, test);
+out:
+	if (options.whitelist)
+		free(options.whitelist);
+	if (options.blacklist)
+		free(options.blacklist);
+	close(cg_fd);
+	if (cg_created)
+		cleanup_cgroup_environment();
+	return err;
+}
+
+void running_handler(int a)
+{
+	running = 0;
+}
diff --git a/tools/testing/selftests/bpf/test_tag.c b/tools/testing/selftests/bpf/test_tag.c
new file mode 100644
index 000000000000..f1300047c1e0
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_tag.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+#include <time.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <sched.h>
+#include <limits.h>
+#include <assert.h>
+
+#include <sys/socket.h>
+
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/if_alg.h>
+
+#include <bpf/bpf.h>
+
+#include "../../../include/linux/filter.h"
+#include "testing_helpers.h"
+
+static struct bpf_insn prog[BPF_MAXINSNS];
+
+static void bpf_gen_imm_prog(unsigned int insns, int fd_map)
+{
+	int i;
+
+	srand(time(NULL));
+	for (i = 0; i < insns; i++)
+		prog[i] = BPF_ALU64_IMM(BPF_MOV, i % BPF_REG_10, rand());
+	prog[i - 1] = BPF_EXIT_INSN();
+}
+
+static void bpf_gen_map_prog(unsigned int insns, int fd_map)
+{
+	int i, j = 0;
+
+	for (i = 0; i + 1 < insns; i += 2) {
+		struct bpf_insn tmp[] = {
+			BPF_LD_MAP_FD(j++ % BPF_REG_10, fd_map)
+		};
+
+		memcpy(&prog[i], tmp, sizeof(tmp));
+	}
+	if (insns % 2 == 0)
+		prog[insns - 2] = BPF_ALU64_IMM(BPF_MOV, i % BPF_REG_10, 42);
+	prog[insns - 1] = BPF_EXIT_INSN();
+}
+
+static int bpf_try_load_prog(int insns, int fd_map,
+			     void (*bpf_filler)(unsigned int insns,
+						int fd_map))
+{
+	int fd_prog;
+
+	bpf_filler(insns, fd_map);
+	fd_prog = bpf_test_load_program(BPF_PROG_TYPE_SCHED_CLS, prog, insns, "", 0,
+				   NULL, 0);
+	assert(fd_prog > 0);
+	if (fd_map > 0)
+		bpf_filler(insns, 0);
+	return fd_prog;
+}
+
+static int __hex2bin(char ch)
+{
+	if ((ch >= '0') && (ch <= '9'))
+		return ch - '0';
+	ch = tolower(ch);
+	if ((ch >= 'a') && (ch <= 'f'))
+		return ch - 'a' + 10;
+	return -1;
+}
+
+static int hex2bin(uint8_t *dst, const char *src, size_t count)
+{
+	while (count--) {
+		int hi = __hex2bin(*src++);
+		int lo = __hex2bin(*src++);
+
+		if ((hi < 0) || (lo < 0))
+			return -1;
+		*dst++ = (hi << 4) | lo;
+	}
+	return 0;
+}
+
+static void tag_from_fdinfo(int fd_prog, uint8_t *tag, uint32_t len)
+{
+	const int prefix_len = sizeof("prog_tag:\t") - 1;
+	char buff[256];
+	int ret = -1;
+	FILE *fp;
+
+	snprintf(buff, sizeof(buff), "/proc/%d/fdinfo/%d", getpid(),
+		 fd_prog);
+	fp = fopen(buff, "r");
+	assert(fp);
+
+	while (fgets(buff, sizeof(buff), fp)) {
+		if (strncmp(buff, "prog_tag:\t", prefix_len))
+			continue;
+		ret = hex2bin(tag, buff + prefix_len, len);
+		break;
+	}
+
+	fclose(fp);
+	assert(!ret);
+}
+
+static void tag_from_alg(int insns, uint8_t *tag, uint32_t len)
+{
+	static const struct sockaddr_alg alg = {
+		.salg_family	= AF_ALG,
+		.salg_type	= "hash",
+		.salg_name	= "sha256",
+	};
+	int fd_base, fd_alg, ret;
+	ssize_t size;
+
+	fd_base = socket(AF_ALG, SOCK_SEQPACKET, 0);
+	assert(fd_base > 0);
+
+	ret = bind(fd_base, (struct sockaddr *)&alg, sizeof(alg));
+	assert(!ret);
+
+	fd_alg = accept(fd_base, NULL, 0);
+	assert(fd_alg > 0);
+
+	insns *= sizeof(struct bpf_insn);
+	size = write(fd_alg, prog, insns);
+	assert(size == insns);
+
+	size = read(fd_alg, tag, len);
+	assert(size == len);
+
+	close(fd_alg);
+	close(fd_base);
+}
+
+static void tag_dump(const char *prefix, uint8_t *tag, uint32_t len)
+{
+	int i;
+
+	printf("%s", prefix);
+	for (i = 0; i < len; i++)
+		printf("%02x", tag[i]);
+	printf("\n");
+}
+
+static void tag_exit_report(int insns, int fd_map, uint8_t *ftag,
+			    uint8_t *atag, uint32_t len)
+{
+	printf("Program tag mismatch for %d insns%s!\n", insns,
+	       fd_map < 0 ? "" : " with map");
+
+	tag_dump("  fdinfo result: ", ftag, len);
+	tag_dump("  af_alg result: ", atag, len);
+	exit(1);
+}
+
+static void do_test(uint32_t *tests, int start_insns, int fd_map,
+		    void (*bpf_filler)(unsigned int insns, int fd))
+{
+	int i, fd_prog;
+
+	for (i = start_insns; i <= BPF_MAXINSNS; i++) {
+		uint8_t ftag[8], atag[sizeof(ftag)];
+
+		fd_prog = bpf_try_load_prog(i, fd_map, bpf_filler);
+		tag_from_fdinfo(fd_prog, ftag, sizeof(ftag));
+		tag_from_alg(i, atag, sizeof(atag));
+		if (memcmp(ftag, atag, sizeof(ftag)))
+			tag_exit_report(i, fd_map, ftag, atag, sizeof(ftag));
+
+		close(fd_prog);
+		sched_yield();
+		(*tests)++;
+	}
+}
+
+int main(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts, .map_flags = BPF_F_NO_PREALLOC);
+	uint32_t tests = 0;
+	int i, fd_map;
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	fd_map = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(int),
+				sizeof(int), 1, &opts);
+	assert(fd_map > 0);
+
+	for (i = 0; i < 5; i++) {
+		do_test(&tests, 2, -1,     bpf_gen_imm_prog);
+		do_test(&tests, 3, fd_map, bpf_gen_map_prog);
+	}
+
+	printf("test_tag: OK (%u tests)\n", tests);
+	close(fd_map);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/test_tcp_hdr_options.h b/tools/testing/selftests/bpf/test_tcp_hdr_options.h
new file mode 100644
index 000000000000..56c9f8a3ad3d
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_tcp_hdr_options.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2020 Facebook */
+
+#ifndef _TEST_TCP_HDR_OPTIONS_H
+#define _TEST_TCP_HDR_OPTIONS_H
+
+struct bpf_test_option {
+	__u8 flags;
+	__u8 max_delack_ms;
+	__u8 rand;
+} __attribute__((packed));
+
+enum {
+	OPTION_RESEND,
+	OPTION_MAX_DELACK_MS,
+	OPTION_RAND,
+	__NR_OPTION_FLAGS,
+};
+
+#define OPTION_F_RESEND		(1 << OPTION_RESEND)
+#define OPTION_F_MAX_DELACK_MS	(1 << OPTION_MAX_DELACK_MS)
+#define OPTION_F_RAND		(1 << OPTION_RAND)
+#define OPTION_MASK		((1 << __NR_OPTION_FLAGS) - 1)
+
+#define TEST_OPTION_FLAGS(flags, option) (1 & ((flags) >> (option)))
+#define SET_OPTION_FLAGS(flags, option)	((flags) |= (1 << (option)))
+
+/* Store in bpf_sk_storage */
+struct hdr_stg {
+	bool active;
+	bool resend_syn; /* active side only */
+	bool syncookie;  /* passive side only */
+	bool fastopen;	/* passive side only */
+};
+
+struct linum_err {
+	unsigned int linum;
+	int err;
+};
+
+#define TCPHDR_FIN 0x01
+#define TCPHDR_SYN 0x02
+#define TCPHDR_RST 0x04
+#define TCPHDR_PSH 0x08
+#define TCPHDR_ACK 0x10
+#define TCPHDR_URG 0x20
+#define TCPHDR_ECE 0x40
+#define TCPHDR_CWR 0x80
+#define TCPHDR_SYNACK (TCPHDR_SYN | TCPHDR_ACK)
+
+#define TCPOPT_EOL		0
+#define TCPOPT_NOP		1
+#define TCPOPT_MSS		2
+#define TCPOPT_WINDOW		3
+#define TCPOPT_EXP		254
+
+#define TCP_BPF_EXPOPT_BASE_LEN 4
+#define MAX_TCP_HDR_LEN		60
+#define MAX_TCP_OPTION_SPACE	40
+
+#ifdef BPF_PROG_TEST_TCP_HDR_OPTIONS
+
+#define CG_OK	1
+#define CG_ERR	0
+
+#ifndef SOL_TCP
+#define SOL_TCP 6
+#endif
+
+struct tcp_exprm_opt {
+	__u8 kind;
+	__u8 len;
+	__u16 magic;
+	union {
+		__u8 data[4];
+		__u32 data32;
+	};
+} __attribute__((packed));
+
+struct tcp_opt {
+	__u8 kind;
+	__u8 len;
+	union {
+		__u8 data[4];
+		__u32 data32;
+	};
+} __attribute__((packed));
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 2);
+	__type(key, int);
+	__type(value, struct linum_err);
+} lport_linum_map SEC(".maps");
+
+static inline unsigned int tcp_hdrlen(const struct tcphdr *th)
+{
+	return th->doff << 2;
+}
+
+static inline __u8 skops_tcp_flags(const struct bpf_sock_ops *skops)
+{
+	return skops->skb_tcp_flags;
+}
+
+static inline void clear_hdr_cb_flags(struct bpf_sock_ops *skops)
+{
+	bpf_sock_ops_cb_flags_set(skops,
+				  skops->bpf_sock_ops_cb_flags &
+				  ~(BPF_SOCK_OPS_PARSE_UNKNOWN_HDR_OPT_CB_FLAG |
+				    BPF_SOCK_OPS_WRITE_HDR_OPT_CB_FLAG));
+}
+
+static inline void set_hdr_cb_flags(struct bpf_sock_ops *skops, __u32 extra)
+{
+	bpf_sock_ops_cb_flags_set(skops,
+				  skops->bpf_sock_ops_cb_flags |
+				  BPF_SOCK_OPS_PARSE_UNKNOWN_HDR_OPT_CB_FLAG |
+				  BPF_SOCK_OPS_WRITE_HDR_OPT_CB_FLAG |
+				  extra);
+}
+static inline void
+clear_parse_all_hdr_cb_flags(struct bpf_sock_ops *skops)
+{
+	bpf_sock_ops_cb_flags_set(skops,
+				  skops->bpf_sock_ops_cb_flags &
+				  ~BPF_SOCK_OPS_PARSE_ALL_HDR_OPT_CB_FLAG);
+}
+
+static inline void
+set_parse_all_hdr_cb_flags(struct bpf_sock_ops *skops)
+{
+	bpf_sock_ops_cb_flags_set(skops,
+				  skops->bpf_sock_ops_cb_flags |
+				  BPF_SOCK_OPS_PARSE_ALL_HDR_OPT_CB_FLAG);
+}
+
+#define RET_CG_ERR(__err) ({			\
+	struct linum_err __linum_err;		\
+	int __lport;				\
+						\
+	__linum_err.linum = __LINE__;		\
+	__linum_err.err = __err;		\
+	__lport = skops->local_port;		\
+	bpf_map_update_elem(&lport_linum_map, &__lport, &__linum_err, BPF_NOEXIST); \
+	clear_hdr_cb_flags(skops);					\
+	clear_parse_all_hdr_cb_flags(skops);				\
+	return CG_ERR;							\
+})
+
+#endif /* BPF_PROG_TEST_TCP_HDR_OPTIONS */
+
+#endif /* _TEST_TCP_HDR_OPTIONS_H */
diff --git a/tools/testing/selftests/bpf/test_tcpbpf.h b/tools/testing/selftests/bpf/test_tcpbpf.h
new file mode 100644
index 000000000000..9dd9b5590f9d
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_tcpbpf.h
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifndef _TEST_TCPBPF_H
+#define _TEST_TCPBPF_H
+
+struct tcpbpf_globals {
+	__u32 event_map;
+	__u32 total_retrans;
+	__u32 data_segs_in;
+	__u32 data_segs_out;
+	__u32 bad_cb_test_rv;
+	__u32 good_cb_test_rv;
+	__u64 bytes_received;
+	__u64 bytes_acked;
+	__u32 num_listen;
+	__u32 num_close_events;
+	__u32 tcp_save_syn;
+	__u32 tcp_saved_syn;
+	__u32 window_clamp_client;
+	__u32 window_clamp_server;
+};
+#endif
diff --git a/tools/testing/selftests/bpf/test_tcpnotify.h b/tools/testing/selftests/bpf/test_tcpnotify.h
new file mode 100644
index 000000000000..8b6cea030bfc
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_tcpnotify.h
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifndef _TEST_TCPBPF_H
+#define _TEST_TCPBPF_H
+
+struct tcpnotify_globals {
+	__u32 total_retrans;
+	__u32 ncalls;
+};
+
+struct tcp_notifier {
+	__u8    type;
+	__u8    subtype;
+	__u8    source;
+	__u8    hash;
+};
+
+#define	TESTPORT	12877
+#endif
diff --git a/tools/testing/selftests/bpf/test_tcpnotify_user.c b/tools/testing/selftests/bpf/test_tcpnotify_user.c
new file mode 100644
index 000000000000..35b4893ccdf8
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_tcpnotify_user.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <asm/types.h>
+#include <sys/syscall.h>
+#include <errno.h>
+#include <string.h>
+#include <linux/bpf.h>
+#include <sys/socket.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <sys/ioctl.h>
+#include <linux/rtnetlink.h>
+#include <linux/perf_event.h>
+
+#include "cgroup_helpers.h"
+
+#include "test_tcpnotify.h"
+#include "testing_helpers.h"
+
+#define SOCKET_BUFFER_SIZE (getpagesize() < 8192L ? getpagesize() : 8192L)
+
+pthread_t tid;
+static bool exit_thread;
+
+int rx_callbacks;
+
+static void dummyfn(void *ctx, int cpu, void *data, __u32 size)
+{
+	struct tcp_notifier *t = data;
+
+	if (t->type != 0xde || t->subtype != 0xad ||
+	    t->source != 0xbe || t->hash != 0xef)
+		return;
+	rx_callbacks++;
+}
+
+void tcp_notifier_poller(struct perf_buffer *pb)
+{
+	int err;
+
+	while (!exit_thread) {
+		err = perf_buffer__poll(pb, 100);
+		if (err < 0 && err != -EINTR) {
+			printf("failed perf_buffer__poll: %d\n", err);
+			return;
+		}
+	}
+}
+
+static void *poller_thread(void *arg)
+{
+	struct perf_buffer *pb = arg;
+
+	tcp_notifier_poller(pb);
+	return arg;
+}
+
+int verify_result(const struct tcpnotify_globals *result)
+{
+	return (result->ncalls > 0 && result->ncalls == rx_callbacks ? 0 : 1);
+}
+
+int main(int argc, char **argv)
+{
+	const char *file = "test_tcpnotify_kern.bpf.o";
+	struct bpf_map *perf_map, *global_map;
+	struct tcpnotify_globals g = {0};
+	struct perf_buffer *pb = NULL;
+	const char *cg_path = "/foo";
+	int prog_fd, rv, cg_fd = -1;
+	int error = EXIT_FAILURE;
+	struct bpf_object *obj;
+	char test_script[80];
+	__u32 key = 0;
+
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	cg_fd = cgroup_setup_and_join(cg_path);
+	if (cg_fd < 0)
+		goto err;
+
+	if (bpf_prog_test_load(file, BPF_PROG_TYPE_SOCK_OPS, &obj, &prog_fd)) {
+		printf("FAILED: load_bpf_file failed for: %s\n", file);
+		goto err;
+	}
+
+	rv = bpf_prog_attach(prog_fd, cg_fd, BPF_CGROUP_SOCK_OPS, 0);
+	if (rv) {
+		printf("FAILED: bpf_prog_attach: %d (%s)\n",
+		       error, strerror(errno));
+		goto err;
+	}
+
+	perf_map = bpf_object__find_map_by_name(obj, "perf_event_map");
+	if (!perf_map) {
+		printf("FAIL:map '%s' not found\n", "perf_event_map");
+		goto err;
+	}
+
+	global_map = bpf_object__find_map_by_name(obj, "global_map");
+	if (!global_map) {
+		printf("FAIL:map '%s' not found\n", "global_map");
+		return -1;
+	}
+
+	pb = perf_buffer__new(bpf_map__fd(perf_map), 8, dummyfn, NULL, NULL, NULL);
+	if (!pb)
+		goto err;
+
+	pthread_create(&tid, NULL, poller_thread, pb);
+
+	sprintf(test_script,
+		"iptables -A INPUT -p tcp --dport %d -j DROP",
+		TESTPORT);
+	if (system(test_script)) {
+		printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
+		goto err;
+	}
+
+	sprintf(test_script,
+		"nc 127.0.0.1 %d < /etc/passwd > /dev/null 2>&1 ",
+		TESTPORT);
+	if (system(test_script))
+		printf("execute command: %s, err %d\n", test_script, -errno);
+
+	sprintf(test_script,
+		"iptables -D INPUT -p tcp --dport %d -j DROP",
+		TESTPORT);
+	if (system(test_script)) {
+		printf("FAILED: execute command: %s, err %d\n", test_script, -errno);
+		goto err;
+	}
+
+	rv = bpf_map_lookup_elem(bpf_map__fd(global_map), &key, &g);
+	if (rv != 0) {
+		printf("FAILED: bpf_map_lookup_elem returns %d\n", rv);
+		goto err;
+	}
+
+	sleep(10);
+
+	exit_thread = true;
+	int ret = pthread_join(tid, NULL);
+	if (ret) {
+		printf("FAILED: pthread_join\n");
+		goto err;
+	}
+
+	if (verify_result(&g)) {
+		printf("FAILED: Wrong stats Expected %d calls, got %d\n",
+			g.ncalls, rx_callbacks);
+		goto err;
+	}
+
+	printf("PASSED!\n");
+	error = 0;
+err:
+	bpf_prog_detach(cg_fd, BPF_CGROUP_SOCK_OPS);
+	close(cg_fd);
+	cleanup_cgroup_environment();
+	perf_buffer__free(pb);
+	return error;
+}
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
new file mode 100644
index 000000000000..27db34ecf3f5
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -0,0 +1,1854 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Testsuite for eBPF verifier
+ *
+ * Copyright (c) 2014 PLUMgrid, http://plumgrid.com
+ * Copyright (c) 2017 Facebook
+ * Copyright (c) 2018 Covalent IO, Inc. http://covalent.io
+ */
+
+#include <endian.h>
+#include <asm/types.h>
+#include <linux/types.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <sched.h>
+#include <limits.h>
+#include <assert.h>
+
+#include <linux/unistd.h>
+#include <linux/filter.h>
+#include <linux/bpf_perf_event.h>
+#include <linux/bpf.h>
+#include <linux/if_ether.h>
+#include <linux/btf.h>
+
+#include <bpf/btf.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+
+#include "autoconf_helper.h"
+#include "unpriv_helpers.h"
+#include "cap_helpers.h"
+#include "bpf_rand.h"
+#include "bpf_util.h"
+#include "test_btf.h"
+#include "../../../include/linux/filter.h"
+#include "testing_helpers.h"
+
+#define MAX_INSNS	BPF_MAXINSNS
+#define MAX_EXPECTED_INSNS	32
+#define MAX_UNEXPECTED_INSNS	32
+#define MAX_TEST_INSNS	1000000
+#define MAX_FIXUPS	8
+#define MAX_NR_MAPS	23
+#define MAX_TEST_RUNS	8
+#define POINTER_VALUE	0xcafe4all
+#define TEST_DATA_LEN	64
+#define MAX_FUNC_INFOS	8
+#define MAX_BTF_STRINGS	256
+#define MAX_BTF_TYPES	256
+
+#define INSN_OFF_MASK	((__s16)0xFFFF)
+#define INSN_IMM_MASK	((__s32)0xFFFFFFFF)
+#define SKIP_INSNS()	BPF_RAW_INSN(0xde, 0xa, 0xd, 0xbeef, 0xdeadbeef)
+
+#define DEFAULT_LIBBPF_LOG_LEVEL	4
+
+#define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS	(1 << 0)
+#define F_LOAD_WITH_STRICT_ALIGNMENT		(1 << 1)
+#define F_NEEDS_JIT_ENABLED			(1 << 2)
+
+/* need CAP_BPF, CAP_NET_ADMIN, CAP_PERFMON to load progs */
+#define ADMIN_CAPS (1ULL << CAP_NET_ADMIN |	\
+		    1ULL << CAP_PERFMON |	\
+		    1ULL << CAP_BPF)
+#define UNPRIV_SYSCTL "kernel/unprivileged_bpf_disabled"
+static bool unpriv_disabled = false;
+static bool jit_disabled;
+static int skips;
+static bool verbose = false;
+static int verif_log_level = 0;
+
+struct kfunc_btf_id_pair {
+	const char *kfunc;
+	int insn_idx;
+};
+
+struct bpf_test {
+	const char *descr;
+	struct bpf_insn	insns[MAX_INSNS];
+	struct bpf_insn	*fill_insns;
+	/* If specified, test engine looks for this sequence of
+	 * instructions in the BPF program after loading. Allows to
+	 * test rewrites applied by verifier.  Use values
+	 * INSN_OFF_MASK and INSN_IMM_MASK to mask `off` and `imm`
+	 * fields if content does not matter.  The test case fails if
+	 * specified instructions are not found.
+	 *
+	 * The sequence could be split into sub-sequences by adding
+	 * SKIP_INSNS instruction at the end of each sub-sequence. In
+	 * such case sub-sequences are searched for one after another.
+	 */
+	struct bpf_insn expected_insns[MAX_EXPECTED_INSNS];
+	/* If specified, test engine applies same pattern matching
+	 * logic as for `expected_insns`. If the specified pattern is
+	 * matched test case is marked as failed.
+	 */
+	struct bpf_insn unexpected_insns[MAX_UNEXPECTED_INSNS];
+	int fixup_map_hash_8b[MAX_FIXUPS];
+	int fixup_map_hash_48b[MAX_FIXUPS];
+	int fixup_map_hash_16b[MAX_FIXUPS];
+	int fixup_map_array_48b[MAX_FIXUPS];
+	int fixup_map_sockmap[MAX_FIXUPS];
+	int fixup_map_sockhash[MAX_FIXUPS];
+	int fixup_map_xskmap[MAX_FIXUPS];
+	int fixup_map_stacktrace[MAX_FIXUPS];
+	int fixup_prog1[MAX_FIXUPS];
+	int fixup_prog2[MAX_FIXUPS];
+	int fixup_map_in_map[MAX_FIXUPS];
+	int fixup_cgroup_storage[MAX_FIXUPS];
+	int fixup_percpu_cgroup_storage[MAX_FIXUPS];
+	int fixup_map_spin_lock[MAX_FIXUPS];
+	int fixup_map_array_ro[MAX_FIXUPS];
+	int fixup_map_array_wo[MAX_FIXUPS];
+	int fixup_map_array_small[MAX_FIXUPS];
+	int fixup_sk_storage_map[MAX_FIXUPS];
+	int fixup_map_event_output[MAX_FIXUPS];
+	int fixup_map_reuseport_array[MAX_FIXUPS];
+	int fixup_map_ringbuf[MAX_FIXUPS];
+	int fixup_map_timer[MAX_FIXUPS];
+	int fixup_map_kptr[MAX_FIXUPS];
+	struct kfunc_btf_id_pair fixup_kfunc_btf_id[MAX_FIXUPS];
+	/* Expected verifier log output for result REJECT or VERBOSE_ACCEPT.
+	 * Can be a tab-separated sequence of expected strings. An empty string
+	 * means no log verification.
+	 */
+	const char *errstr;
+	const char *errstr_unpriv;
+	uint32_t insn_processed;
+	int prog_len;
+	enum {
+		UNDEF,
+		ACCEPT,
+		REJECT,
+		VERBOSE_ACCEPT,
+	} result, result_unpriv;
+	enum bpf_prog_type prog_type;
+	uint8_t flags;
+	void (*fill_helper)(struct bpf_test *self);
+	int runs;
+#define bpf_testdata_struct_t					\
+	struct {						\
+		uint32_t retval, retval_unpriv;			\
+		union {						\
+			__u8 data[TEST_DATA_LEN];		\
+			__u64 data64[TEST_DATA_LEN / 8];	\
+		};						\
+	}
+	union {
+		bpf_testdata_struct_t;
+		bpf_testdata_struct_t retvals[MAX_TEST_RUNS];
+	};
+	enum bpf_attach_type expected_attach_type;
+	const char *kfunc;
+	struct bpf_func_info func_info[MAX_FUNC_INFOS];
+	int func_info_cnt;
+	char btf_strings[MAX_BTF_STRINGS];
+	/* A set of BTF types to load when specified,
+	 * use macro definitions from test_btf.h,
+	 * must end with BTF_END_RAW
+	 */
+	__u32 btf_types[MAX_BTF_TYPES];
+};
+
+/* Note we want this to be 64 bit aligned so that the end of our array is
+ * actually the end of the structure.
+ */
+#define MAX_ENTRIES 11
+
+struct test_val {
+	unsigned int index;
+	int foo[MAX_ENTRIES];
+};
+
+struct other_val {
+	long long foo;
+	long long bar;
+};
+
+static void bpf_fill_ld_abs_vlan_push_pop(struct bpf_test *self)
+{
+	/* test: {skb->data[0], vlan_push} x 51 + {skb->data[0], vlan_pop} x 51 */
+#define PUSH_CNT 51
+	/* jump range is limited to 16 bit. PUSH_CNT of ld_abs needs room */
+	unsigned int len = (1 << 15) - PUSH_CNT * 2 * 5 * 6;
+	struct bpf_insn *insn = self->fill_insns;
+	int i = 0, j, k = 0;
+
+	insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+loop:
+	for (j = 0; j < PUSH_CNT; j++) {
+		insn[i++] = BPF_LD_ABS(BPF_B, 0);
+		/* jump to error label */
+		insn[i] = BPF_JMP32_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 3);
+		i++;
+		insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_6);
+		insn[i++] = BPF_MOV64_IMM(BPF_REG_2, 1);
+		insn[i++] = BPF_MOV64_IMM(BPF_REG_3, 2);
+		insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+					 BPF_FUNC_skb_vlan_push);
+		insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 3);
+		i++;
+	}
+
+	for (j = 0; j < PUSH_CNT; j++) {
+		insn[i++] = BPF_LD_ABS(BPF_B, 0);
+		insn[i] = BPF_JMP32_IMM(BPF_JNE, BPF_REG_0, 0x34, len - i - 3);
+		i++;
+		insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_6);
+		insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+					 BPF_FUNC_skb_vlan_pop);
+		insn[i] = BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, len - i - 3);
+		i++;
+	}
+	if (++k < 5)
+		goto loop;
+
+	for (; i < len - 3; i++)
+		insn[i] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0xbef);
+	insn[len - 3] = BPF_JMP_A(1);
+	/* error label */
+	insn[len - 2] = BPF_MOV32_IMM(BPF_REG_0, 0);
+	insn[len - 1] = BPF_EXIT_INSN();
+	self->prog_len = len;
+}
+
+static void bpf_fill_jump_around_ld_abs(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	/* jump range is limited to 16 bit. every ld_abs is replaced by 6 insns,
+	 * but on arches like arm, ppc etc, there will be one BPF_ZEXT inserted
+	 * to extend the error value of the inlined ld_abs sequence which then
+	 * contains 7 insns. so, set the dividend to 7 so the testcase could
+	 * work on all arches.
+	 */
+	unsigned int len = (1 << 15) / 7;
+	int i = 0;
+
+	insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+	insn[i++] = BPF_LD_ABS(BPF_B, 0);
+	insn[i] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 10, len - i - 2);
+	i++;
+	while (i < len - 1)
+		insn[i++] = BPF_LD_ABS(BPF_B, 1);
+	insn[i] = BPF_EXIT_INSN();
+	self->prog_len = i + 1;
+}
+
+static void bpf_fill_rand_ld_dw(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	uint64_t res = 0;
+	int i = 0;
+
+	insn[i++] = BPF_MOV32_IMM(BPF_REG_0, 0);
+	while (i < self->retval) {
+		uint64_t val = bpf_semi_rand_get();
+		struct bpf_insn tmp[2] = { BPF_LD_IMM64(BPF_REG_1, val) };
+
+		res ^= val;
+		insn[i++] = tmp[0];
+		insn[i++] = tmp[1];
+		insn[i++] = BPF_ALU64_REG(BPF_XOR, BPF_REG_0, BPF_REG_1);
+	}
+	insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_0);
+	insn[i++] = BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32);
+	insn[i++] = BPF_ALU64_REG(BPF_XOR, BPF_REG_0, BPF_REG_1);
+	insn[i] = BPF_EXIT_INSN();
+	self->prog_len = i + 1;
+	res ^= (res >> 32);
+	self->retval = (uint32_t)res;
+}
+
+#define MAX_JMP_SEQ 8192
+
+/* test the sequence of 8k jumps */
+static void bpf_fill_scale1(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	int i = 0, k = 0;
+
+	insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+	/* test to check that the long sequence of jumps is acceptable */
+	while (k++ < MAX_JMP_SEQ) {
+		insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+					 BPF_FUNC_get_prandom_u32);
+		insn[i++] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, bpf_semi_rand_get(), 2);
+		insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_10);
+		insn[i++] = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6,
+					-8 * (k % 64 + 1));
+	}
+	/* is_state_visited() doesn't allocate state for pruning for every jump.
+	 * Hence multiply jmps by 4 to accommodate that heuristic
+	 */
+	while (i < MAX_TEST_INSNS - MAX_JMP_SEQ * 4)
+		insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 42);
+	insn[i] = BPF_EXIT_INSN();
+	self->prog_len = i + 1;
+	self->retval = 42;
+}
+
+/* test the sequence of 8k jumps in inner most function (function depth 8)*/
+static void bpf_fill_scale2(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	int i = 0, k = 0;
+
+#define FUNC_NEST 7
+	for (k = 0; k < FUNC_NEST; k++) {
+		insn[i++] = BPF_CALL_REL(1);
+		insn[i++] = BPF_EXIT_INSN();
+	}
+	insn[i++] = BPF_MOV64_REG(BPF_REG_6, BPF_REG_1);
+	/* test to check that the long sequence of jumps is acceptable */
+	k = 0;
+	while (k++ < MAX_JMP_SEQ) {
+		insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+					 BPF_FUNC_get_prandom_u32);
+		insn[i++] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, bpf_semi_rand_get(), 2);
+		insn[i++] = BPF_MOV64_REG(BPF_REG_1, BPF_REG_10);
+		insn[i++] = BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6,
+					-8 * (k % (64 - 4 * FUNC_NEST) + 1));
+	}
+	while (i < MAX_TEST_INSNS - MAX_JMP_SEQ * 4)
+		insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 42);
+	insn[i] = BPF_EXIT_INSN();
+	self->prog_len = i + 1;
+	self->retval = 42;
+}
+
+static void bpf_fill_scale(struct bpf_test *self)
+{
+	switch (self->retval) {
+	case 1:
+		return bpf_fill_scale1(self);
+	case 2:
+		return bpf_fill_scale2(self);
+	default:
+		self->prog_len = 0;
+		break;
+	}
+}
+
+static int bpf_fill_torturous_jumps_insn_1(struct bpf_insn *insn)
+{
+	unsigned int len = 259, hlen = 128;
+	int i;
+
+	insn[0] = BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32);
+	for (i = 1; i <= hlen; i++) {
+		insn[i]        = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, i, hlen);
+		insn[i + hlen] = BPF_JMP_A(hlen - i);
+	}
+	insn[len - 2] = BPF_MOV64_IMM(BPF_REG_0, 1);
+	insn[len - 1] = BPF_EXIT_INSN();
+
+	return len;
+}
+
+static int bpf_fill_torturous_jumps_insn_2(struct bpf_insn *insn)
+{
+	unsigned int len = 4100, jmp_off = 2048;
+	int i, j;
+
+	insn[0] = BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32);
+	for (i = 1; i <= jmp_off; i++) {
+		insn[i] = BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, i, jmp_off);
+	}
+	insn[i++] = BPF_JMP_A(jmp_off);
+	for (; i <= jmp_off * 2 + 1; i+=16) {
+		for (j = 0; j < 16; j++) {
+			insn[i + j] = BPF_JMP_A(16 - j - 1);
+		}
+	}
+
+	insn[len - 2] = BPF_MOV64_IMM(BPF_REG_0, 2);
+	insn[len - 1] = BPF_EXIT_INSN();
+
+	return len;
+}
+
+static void bpf_fill_torturous_jumps(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	int i = 0;
+
+	switch (self->retval) {
+	case 1:
+		self->prog_len = bpf_fill_torturous_jumps_insn_1(insn);
+		return;
+	case 2:
+		self->prog_len = bpf_fill_torturous_jumps_insn_2(insn);
+		return;
+	case 3:
+		/* main */
+		insn[i++] = BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4);
+		insn[i++] = BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 262);
+		insn[i++] = BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0);
+		insn[i++] = BPF_MOV64_IMM(BPF_REG_0, 3);
+		insn[i++] = BPF_EXIT_INSN();
+
+		/* subprog 1 */
+		i += bpf_fill_torturous_jumps_insn_1(insn + i);
+
+		/* subprog 2 */
+		i += bpf_fill_torturous_jumps_insn_2(insn + i);
+
+		self->prog_len = i;
+		return;
+	default:
+		self->prog_len = 0;
+		break;
+	}
+}
+
+static void bpf_fill_big_prog_with_loop_1(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	/* This test was added to catch a specific use after free
+	 * error, which happened upon BPF program reallocation.
+	 * Reallocation is handled by core.c:bpf_prog_realloc, which
+	 * reuses old memory if page boundary is not crossed. The
+	 * value of `len` is chosen to cross this boundary on bpf_loop
+	 * patching.
+	 */
+	const int len = getpagesize() - 25;
+	int callback_load_idx;
+	int callback_idx;
+	int i = 0;
+
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1);
+	callback_load_idx = i;
+	insn[i++] = BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW,
+				 BPF_REG_2, BPF_PSEUDO_FUNC, 0,
+				 777 /* filled below */);
+	insn[i++] = BPF_RAW_INSN(0, 0, 0, 0, 0);
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0);
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0);
+	insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop);
+
+	while (i < len - 3)
+		insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
+	insn[i++] = BPF_EXIT_INSN();
+
+	callback_idx = i;
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
+	insn[i++] = BPF_EXIT_INSN();
+
+	insn[callback_load_idx].imm = callback_idx - callback_load_idx - 1;
+	self->func_info[1].insn_off = callback_idx;
+	self->prog_len = i;
+	assert(i == len);
+}
+
+/* BPF_SK_LOOKUP contains 13 instructions, if you need to fix up maps */
+#define BPF_SK_LOOKUP(func)						\
+	/* struct bpf_sock_tuple tuple = {} */				\
+	BPF_MOV64_IMM(BPF_REG_2, 0),					\
+	BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -8),			\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -16),		\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -24),		\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -32),		\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -40),		\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -48),		\
+	/* sk = func(ctx, &tuple, sizeof tuple, 0, 0) */		\
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),				\
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),				\
+	BPF_MOV64_IMM(BPF_REG_3, sizeof(struct bpf_sock_tuple)),	\
+	BPF_MOV64_IMM(BPF_REG_4, 0),					\
+	BPF_MOV64_IMM(BPF_REG_5, 0),					\
+	BPF_EMIT_CALL(BPF_FUNC_ ## func)
+
+/* BPF_DIRECT_PKT_R2 contains 7 instructions, it initializes default return
+ * value into 0 and does necessary preparation for direct packet access
+ * through r2. The allowed access range is 8 bytes.
+ */
+#define BPF_DIRECT_PKT_R2						\
+	BPF_MOV64_IMM(BPF_REG_0, 0),					\
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,			\
+		    offsetof(struct __sk_buff, data)),			\
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,			\
+		    offsetof(struct __sk_buff, data_end)),		\
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_2),				\
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8),				\
+	BPF_JMP_REG(BPF_JLE, BPF_REG_4, BPF_REG_3, 1),			\
+	BPF_EXIT_INSN()
+
+/* BPF_RAND_UEXT_R7 contains 4 instructions, it initializes R7 into a random
+ * positive u32, and zero-extend it into 64-bit.
+ */
+#define BPF_RAND_UEXT_R7						\
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,			\
+		     BPF_FUNC_get_prandom_u32),				\
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),				\
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 33),				\
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_7, 33)
+
+/* BPF_RAND_SEXT_R7 contains 5 instructions, it initializes R7 into a random
+ * negative u32, and sign-extend it into 64-bit.
+ */
+#define BPF_RAND_SEXT_R7						\
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,			\
+		     BPF_FUNC_get_prandom_u32),				\
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),				\
+	BPF_ALU64_IMM(BPF_OR, BPF_REG_7, 0x80000000),			\
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_7, 32),				\
+	BPF_ALU64_IMM(BPF_ARSH, BPF_REG_7, 32)
+
+static struct bpf_test tests[] = {
+#define FILL_ARRAY
+#include <verifier/tests.h>
+#undef FILL_ARRAY
+};
+
+static int probe_filter_length(const struct bpf_insn *fp)
+{
+	int len;
+
+	for (len = MAX_INSNS - 1; len > 0; --len)
+		if (fp[len].code != 0 || fp[len].imm != 0)
+			break;
+	return len + 1;
+}
+
+static bool skip_unsupported_map(enum bpf_map_type map_type)
+{
+	if (!libbpf_probe_bpf_map_type(map_type, NULL)) {
+		printf("SKIP (unsupported map type %d)\n", map_type);
+		skips++;
+		return true;
+	}
+	return false;
+}
+
+static int __create_map(uint32_t type, uint32_t size_key,
+			uint32_t size_value, uint32_t max_elem,
+			uint32_t extra_flags)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	int fd;
+
+	opts.map_flags = (type == BPF_MAP_TYPE_HASH ? BPF_F_NO_PREALLOC : 0) | extra_flags;
+	fd = bpf_map_create(type, NULL, size_key, size_value, max_elem, &opts);
+	if (fd < 0) {
+		if (skip_unsupported_map(type))
+			return -1;
+		printf("Failed to create hash map '%s'!\n", strerror(errno));
+	}
+
+	return fd;
+}
+
+static int create_map(uint32_t type, uint32_t size_key,
+		      uint32_t size_value, uint32_t max_elem)
+{
+	return __create_map(type, size_key, size_value, max_elem, 0);
+}
+
+static void update_map(int fd, int index)
+{
+	struct test_val value = {
+		.index = (6 + 1) * sizeof(int),
+		.foo[6] = 0xabcdef12,
+	};
+
+	assert(!bpf_map_update_elem(fd, &index, &value, 0));
+}
+
+static int create_prog_dummy_simple(enum bpf_prog_type prog_type, int ret)
+{
+	struct bpf_insn prog[] = {
+		BPF_MOV64_IMM(BPF_REG_0, ret),
+		BPF_EXIT_INSN(),
+	};
+
+	return bpf_prog_load(prog_type, NULL, "GPL", prog, ARRAY_SIZE(prog), NULL);
+}
+
+static int create_prog_dummy_loop(enum bpf_prog_type prog_type, int mfd,
+				  int idx, int ret)
+{
+	struct bpf_insn prog[] = {
+		BPF_MOV64_IMM(BPF_REG_3, idx),
+		BPF_LD_MAP_FD(BPF_REG_2, mfd),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+			     BPF_FUNC_tail_call),
+		BPF_MOV64_IMM(BPF_REG_0, ret),
+		BPF_EXIT_INSN(),
+	};
+
+	return bpf_prog_load(prog_type, NULL, "GPL", prog, ARRAY_SIZE(prog), NULL);
+}
+
+static int create_prog_array(enum bpf_prog_type prog_type, uint32_t max_elem,
+			     int p1key, int p2key, int p3key)
+{
+	int mfd, p1fd, p2fd, p3fd;
+
+	mfd = bpf_map_create(BPF_MAP_TYPE_PROG_ARRAY, NULL, sizeof(int),
+			     sizeof(int), max_elem, NULL);
+	if (mfd < 0) {
+		if (skip_unsupported_map(BPF_MAP_TYPE_PROG_ARRAY))
+			return -1;
+		printf("Failed to create prog array '%s'!\n", strerror(errno));
+		return -1;
+	}
+
+	p1fd = create_prog_dummy_simple(prog_type, 42);
+	p2fd = create_prog_dummy_loop(prog_type, mfd, p2key, 41);
+	p3fd = create_prog_dummy_simple(prog_type, 24);
+	if (p1fd < 0 || p2fd < 0 || p3fd < 0)
+		goto err;
+	if (bpf_map_update_elem(mfd, &p1key, &p1fd, BPF_ANY) < 0)
+		goto err;
+	if (bpf_map_update_elem(mfd, &p2key, &p2fd, BPF_ANY) < 0)
+		goto err;
+	if (bpf_map_update_elem(mfd, &p3key, &p3fd, BPF_ANY) < 0) {
+err:
+		close(mfd);
+		mfd = -1;
+	}
+	close(p3fd);
+	close(p2fd);
+	close(p1fd);
+	return mfd;
+}
+
+static int create_map_in_map(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts);
+	int inner_map_fd, outer_map_fd;
+
+	inner_map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, NULL, sizeof(int),
+				      sizeof(int), 1, NULL);
+	if (inner_map_fd < 0) {
+		if (skip_unsupported_map(BPF_MAP_TYPE_ARRAY))
+			return -1;
+		printf("Failed to create array '%s'!\n", strerror(errno));
+		return inner_map_fd;
+	}
+
+	opts.inner_map_fd = inner_map_fd;
+	outer_map_fd = bpf_map_create(BPF_MAP_TYPE_ARRAY_OF_MAPS, NULL,
+				      sizeof(int), sizeof(int), 1, &opts);
+	if (outer_map_fd < 0) {
+		if (skip_unsupported_map(BPF_MAP_TYPE_ARRAY_OF_MAPS))
+			return -1;
+		printf("Failed to create array of maps '%s'!\n",
+		       strerror(errno));
+	}
+
+	close(inner_map_fd);
+
+	return outer_map_fd;
+}
+
+static int create_cgroup_storage(bool percpu)
+{
+	enum bpf_map_type type = percpu ? BPF_MAP_TYPE_PERCPU_CGROUP_STORAGE :
+		BPF_MAP_TYPE_CGROUP_STORAGE;
+	int fd;
+
+	fd = bpf_map_create(type, NULL, sizeof(struct bpf_cgroup_storage_key),
+			    TEST_DATA_LEN, 0, NULL);
+	if (fd < 0) {
+		if (skip_unsupported_map(type))
+			return -1;
+		printf("Failed to create cgroup storage '%s'!\n",
+		       strerror(errno));
+	}
+
+	return fd;
+}
+
+/* struct bpf_spin_lock {
+ *   int val;
+ * };
+ * struct val {
+ *   int cnt;
+ *   struct bpf_spin_lock l;
+ * };
+ * struct bpf_timer {
+ *   __u64 :64;
+ *   __u64 :64;
+ * } __attribute__((aligned(8)));
+ * struct timer {
+ *   struct bpf_timer t;
+ * };
+ * struct btf_ptr {
+ *   struct prog_test_ref_kfunc __kptr_untrusted *ptr;
+ *   struct prog_test_ref_kfunc __kptr *ptr;
+ *   struct prog_test_member __kptr *ptr;
+ * }
+ */
+static const char btf_str_sec[] = "\0bpf_spin_lock\0val\0cnt\0l\0bpf_timer\0timer\0t"
+				  "\0btf_ptr\0prog_test_ref_kfunc\0ptr\0kptr\0kptr_untrusted"
+				  "\0prog_test_member";
+static __u32 btf_raw_types[] = {
+	/* int */
+	BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),  /* [1] */
+	/* struct bpf_spin_lock */                      /* [2] */
+	BTF_TYPE_ENC(1, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 4),
+	BTF_MEMBER_ENC(15, 1, 0), /* int val; */
+	/* struct val */                                /* [3] */
+	BTF_TYPE_ENC(15, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 2), 8),
+	BTF_MEMBER_ENC(19, 1, 0), /* int cnt; */
+	BTF_MEMBER_ENC(23, 2, 32),/* struct bpf_spin_lock l; */
+	/* struct bpf_timer */                          /* [4] */
+	BTF_TYPE_ENC(25, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 0), 16),
+	/* struct timer */                              /* [5] */
+	BTF_TYPE_ENC(35, BTF_INFO_ENC(BTF_KIND_STRUCT, 0, 1), 16),
+	BTF_MEMBER_ENC(41, 4, 0), /* struct bpf_timer t; */
+	/* struct prog_test_ref_kfunc */		/* [6] */
+	BTF_STRUCT_ENC(51, 0, 0),
+	BTF_STRUCT_ENC(95, 0, 0),			/* [7] */
+	/* type tag "kptr_untrusted" */
+	BTF_TYPE_TAG_ENC(80, 6),			/* [8] */
+	/* type tag "kptr" */
+	BTF_TYPE_TAG_ENC(75, 6),			/* [9] */
+	BTF_TYPE_TAG_ENC(75, 7),			/* [10] */
+	BTF_PTR_ENC(8),					/* [11] */
+	BTF_PTR_ENC(9),					/* [12] */
+	BTF_PTR_ENC(10),				/* [13] */
+	/* struct btf_ptr */				/* [14] */
+	BTF_STRUCT_ENC(43, 3, 24),
+	BTF_MEMBER_ENC(71, 11, 0), /* struct prog_test_ref_kfunc __kptr_untrusted *ptr; */
+	BTF_MEMBER_ENC(71, 12, 64), /* struct prog_test_ref_kfunc __kptr *ptr; */
+	BTF_MEMBER_ENC(71, 13, 128), /* struct prog_test_member __kptr *ptr; */
+};
+
+static char bpf_vlog[UINT_MAX >> 5];
+
+static int load_btf_spec(__u32 *types, int types_len,
+			 const char *strings, int strings_len)
+{
+	struct btf_header hdr = {
+		.magic = BTF_MAGIC,
+		.version = BTF_VERSION,
+		.hdr_len = sizeof(struct btf_header),
+		.type_len = types_len,
+		.str_off = types_len,
+		.str_len = strings_len,
+	};
+	void *ptr, *raw_btf;
+	int btf_fd;
+	LIBBPF_OPTS(bpf_btf_load_opts, opts,
+		    .log_buf = bpf_vlog,
+		    .log_size = sizeof(bpf_vlog),
+		    .log_level = (verbose
+				  ? verif_log_level
+				  : DEFAULT_LIBBPF_LOG_LEVEL),
+	);
+
+	raw_btf = malloc(sizeof(hdr) + types_len + strings_len);
+
+	ptr = raw_btf;
+	memcpy(ptr, &hdr, sizeof(hdr));
+	ptr += sizeof(hdr);
+	memcpy(ptr, types, hdr.type_len);
+	ptr += hdr.type_len;
+	memcpy(ptr, strings, hdr.str_len);
+	ptr += hdr.str_len;
+
+	btf_fd = bpf_btf_load(raw_btf, ptr - raw_btf, &opts);
+	if (btf_fd < 0)
+		printf("Failed to load BTF spec: '%s'\n", strerror(errno));
+
+	free(raw_btf);
+
+	return btf_fd < 0 ? -1 : btf_fd;
+}
+
+static int load_btf(void)
+{
+	return load_btf_spec(btf_raw_types, sizeof(btf_raw_types),
+			     btf_str_sec, sizeof(btf_str_sec));
+}
+
+static int load_btf_for_test(struct bpf_test *test)
+{
+	int types_num = 0;
+
+	while (types_num < MAX_BTF_TYPES &&
+	       test->btf_types[types_num] != BTF_END_RAW)
+		++types_num;
+
+	int types_len = types_num * sizeof(test->btf_types[0]);
+
+	return load_btf_spec(test->btf_types, types_len,
+			     test->btf_strings, sizeof(test->btf_strings));
+}
+
+static int create_map_spin_lock(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 3,
+	);
+	int fd, btf_fd;
+
+	btf_fd = load_btf();
+	if (btf_fd < 0)
+		return -1;
+	opts.btf_fd = btf_fd;
+	fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_map", 4, 8, 1, &opts);
+	if (fd < 0)
+		printf("Failed to create map with spin_lock\n");
+	return fd;
+}
+
+static int create_sk_storage_map(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts,
+		.map_flags = BPF_F_NO_PREALLOC,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 3,
+	);
+	int fd, btf_fd;
+
+	btf_fd = load_btf();
+	if (btf_fd < 0)
+		return -1;
+	opts.btf_fd = btf_fd;
+	fd = bpf_map_create(BPF_MAP_TYPE_SK_STORAGE, "test_map", 4, 8, 0, &opts);
+	close(opts.btf_fd);
+	if (fd < 0)
+		printf("Failed to create sk_storage_map\n");
+	return fd;
+}
+
+static int create_map_timer(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 5,
+	);
+	int fd, btf_fd;
+
+	btf_fd = load_btf();
+	if (btf_fd < 0)
+		return -1;
+
+	opts.btf_fd = btf_fd;
+	fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_map", 4, 16, 1, &opts);
+	if (fd < 0)
+		printf("Failed to create map with timer\n");
+	return fd;
+}
+
+static int create_map_kptr(void)
+{
+	LIBBPF_OPTS(bpf_map_create_opts, opts,
+		.btf_key_type_id = 1,
+		.btf_value_type_id = 14,
+	);
+	int fd, btf_fd;
+
+	btf_fd = load_btf();
+	if (btf_fd < 0)
+		return -1;
+
+	opts.btf_fd = btf_fd;
+	fd = bpf_map_create(BPF_MAP_TYPE_ARRAY, "test_map", 4, 24, 1, &opts);
+	if (fd < 0)
+		printf("Failed to create map with btf_id pointer\n");
+	return fd;
+}
+
+static void set_root(bool set)
+{
+	__u64 caps;
+
+	if (set) {
+		if (cap_enable_effective(1ULL << CAP_SYS_ADMIN, &caps))
+			perror("cap_disable_effective(CAP_SYS_ADMIN)");
+	} else {
+		if (cap_disable_effective(1ULL << CAP_SYS_ADMIN, &caps))
+			perror("cap_disable_effective(CAP_SYS_ADMIN)");
+	}
+}
+
+static __u64 ptr_to_u64(const void *ptr)
+{
+	return (uintptr_t) ptr;
+}
+
+static struct btf *btf__load_testmod_btf(struct btf *vmlinux)
+{
+	struct bpf_btf_info info;
+	__u32 len = sizeof(info);
+	struct btf *btf = NULL;
+	char name[64];
+	__u32 id = 0;
+	int err, fd;
+
+	/* Iterate all loaded BTF objects and find bpf_testmod,
+	 * we need SYS_ADMIN cap for that.
+	 */
+	set_root(true);
+
+	while (true) {
+		err = bpf_btf_get_next_id(id, &id);
+		if (err) {
+			if (errno == ENOENT)
+				break;
+			perror("bpf_btf_get_next_id failed");
+			break;
+		}
+
+		fd = bpf_btf_get_fd_by_id(id);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				continue;
+			perror("bpf_btf_get_fd_by_id failed");
+			break;
+		}
+
+		memset(&info, 0, sizeof(info));
+		info.name_len = sizeof(name);
+		info.name = ptr_to_u64(name);
+		len = sizeof(info);
+
+		err = bpf_obj_get_info_by_fd(fd, &info, &len);
+		if (err) {
+			close(fd);
+			perror("bpf_obj_get_info_by_fd failed");
+			break;
+		}
+
+		if (strcmp("bpf_testmod", name)) {
+			close(fd);
+			continue;
+		}
+
+		btf = btf__load_from_kernel_by_id_split(id, vmlinux);
+		if (!btf) {
+			close(fd);
+			break;
+		}
+
+		/* We need the fd to stay open so it can be used in fd_array.
+		 * The final cleanup call to btf__free will free btf object
+		 * and close the file descriptor.
+		 */
+		btf__set_fd(btf, fd);
+		break;
+	}
+
+	set_root(false);
+	return btf;
+}
+
+static struct btf *testmod_btf;
+static struct btf *vmlinux_btf;
+
+static void kfuncs_cleanup(void)
+{
+	btf__free(testmod_btf);
+	btf__free(vmlinux_btf);
+}
+
+static void fixup_prog_kfuncs(struct bpf_insn *prog, int *fd_array,
+			      struct kfunc_btf_id_pair *fixup_kfunc_btf_id)
+{
+	/* Patch in kfunc BTF IDs */
+	while (fixup_kfunc_btf_id->kfunc) {
+		int btf_id = 0;
+
+		/* try to find kfunc in kernel BTF */
+		vmlinux_btf = vmlinux_btf ?: btf__load_vmlinux_btf();
+		if (vmlinux_btf) {
+			btf_id = btf__find_by_name_kind(vmlinux_btf,
+							fixup_kfunc_btf_id->kfunc,
+							BTF_KIND_FUNC);
+			btf_id = btf_id < 0 ? 0 : btf_id;
+		}
+
+		/* kfunc not found in kernel BTF, try bpf_testmod BTF */
+		if (!btf_id) {
+			testmod_btf = testmod_btf ?: btf__load_testmod_btf(vmlinux_btf);
+			if (testmod_btf) {
+				btf_id = btf__find_by_name_kind(testmod_btf,
+								fixup_kfunc_btf_id->kfunc,
+								BTF_KIND_FUNC);
+				btf_id = btf_id < 0 ? 0 : btf_id;
+				if (btf_id) {
+					/* We put bpf_testmod module fd into fd_array
+					 * and its index 1 into instruction 'off'.
+					 */
+					*fd_array = btf__fd(testmod_btf);
+					prog[fixup_kfunc_btf_id->insn_idx].off = 1;
+				}
+			}
+		}
+
+		prog[fixup_kfunc_btf_id->insn_idx].imm = btf_id;
+		fixup_kfunc_btf_id++;
+	}
+}
+
+static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
+			  struct bpf_insn *prog, int *map_fds, int *fd_array)
+{
+	int *fixup_map_hash_8b = test->fixup_map_hash_8b;
+	int *fixup_map_hash_48b = test->fixup_map_hash_48b;
+	int *fixup_map_hash_16b = test->fixup_map_hash_16b;
+	int *fixup_map_array_48b = test->fixup_map_array_48b;
+	int *fixup_map_sockmap = test->fixup_map_sockmap;
+	int *fixup_map_sockhash = test->fixup_map_sockhash;
+	int *fixup_map_xskmap = test->fixup_map_xskmap;
+	int *fixup_map_stacktrace = test->fixup_map_stacktrace;
+	int *fixup_prog1 = test->fixup_prog1;
+	int *fixup_prog2 = test->fixup_prog2;
+	int *fixup_map_in_map = test->fixup_map_in_map;
+	int *fixup_cgroup_storage = test->fixup_cgroup_storage;
+	int *fixup_percpu_cgroup_storage = test->fixup_percpu_cgroup_storage;
+	int *fixup_map_spin_lock = test->fixup_map_spin_lock;
+	int *fixup_map_array_ro = test->fixup_map_array_ro;
+	int *fixup_map_array_wo = test->fixup_map_array_wo;
+	int *fixup_map_array_small = test->fixup_map_array_small;
+	int *fixup_sk_storage_map = test->fixup_sk_storage_map;
+	int *fixup_map_event_output = test->fixup_map_event_output;
+	int *fixup_map_reuseport_array = test->fixup_map_reuseport_array;
+	int *fixup_map_ringbuf = test->fixup_map_ringbuf;
+	int *fixup_map_timer = test->fixup_map_timer;
+	int *fixup_map_kptr = test->fixup_map_kptr;
+
+	if (test->fill_helper) {
+		test->fill_insns = calloc(MAX_TEST_INSNS, sizeof(struct bpf_insn));
+		test->fill_helper(test);
+	}
+
+	/* Allocating HTs with 1 elem is fine here, since we only test
+	 * for verifier and not do a runtime lookup, so the only thing
+	 * that really matters is value size in this case.
+	 */
+	if (*fixup_map_hash_8b) {
+		map_fds[0] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
+					sizeof(long long), 1);
+		do {
+			prog[*fixup_map_hash_8b].imm = map_fds[0];
+			fixup_map_hash_8b++;
+		} while (*fixup_map_hash_8b);
+	}
+
+	if (*fixup_map_hash_48b) {
+		map_fds[1] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
+					sizeof(struct test_val), 1);
+		do {
+			prog[*fixup_map_hash_48b].imm = map_fds[1];
+			fixup_map_hash_48b++;
+		} while (*fixup_map_hash_48b);
+	}
+
+	if (*fixup_map_hash_16b) {
+		map_fds[2] = create_map(BPF_MAP_TYPE_HASH, sizeof(long long),
+					sizeof(struct other_val), 1);
+		do {
+			prog[*fixup_map_hash_16b].imm = map_fds[2];
+			fixup_map_hash_16b++;
+		} while (*fixup_map_hash_16b);
+	}
+
+	if (*fixup_map_array_48b) {
+		map_fds[3] = create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+					sizeof(struct test_val), 1);
+		update_map(map_fds[3], 0);
+		do {
+			prog[*fixup_map_array_48b].imm = map_fds[3];
+			fixup_map_array_48b++;
+		} while (*fixup_map_array_48b);
+	}
+
+	if (*fixup_prog1) {
+		map_fds[4] = create_prog_array(prog_type, 4, 0, 1, 2);
+		do {
+			prog[*fixup_prog1].imm = map_fds[4];
+			fixup_prog1++;
+		} while (*fixup_prog1);
+	}
+
+	if (*fixup_prog2) {
+		map_fds[5] = create_prog_array(prog_type, 8, 7, 1, 2);
+		do {
+			prog[*fixup_prog2].imm = map_fds[5];
+			fixup_prog2++;
+		} while (*fixup_prog2);
+	}
+
+	if (*fixup_map_in_map) {
+		map_fds[6] = create_map_in_map();
+		do {
+			prog[*fixup_map_in_map].imm = map_fds[6];
+			fixup_map_in_map++;
+		} while (*fixup_map_in_map);
+	}
+
+	if (*fixup_cgroup_storage) {
+		map_fds[7] = create_cgroup_storage(false);
+		do {
+			prog[*fixup_cgroup_storage].imm = map_fds[7];
+			fixup_cgroup_storage++;
+		} while (*fixup_cgroup_storage);
+	}
+
+	if (*fixup_percpu_cgroup_storage) {
+		map_fds[8] = create_cgroup_storage(true);
+		do {
+			prog[*fixup_percpu_cgroup_storage].imm = map_fds[8];
+			fixup_percpu_cgroup_storage++;
+		} while (*fixup_percpu_cgroup_storage);
+	}
+	if (*fixup_map_sockmap) {
+		map_fds[9] = create_map(BPF_MAP_TYPE_SOCKMAP, sizeof(int),
+					sizeof(int), 1);
+		do {
+			prog[*fixup_map_sockmap].imm = map_fds[9];
+			fixup_map_sockmap++;
+		} while (*fixup_map_sockmap);
+	}
+	if (*fixup_map_sockhash) {
+		map_fds[10] = create_map(BPF_MAP_TYPE_SOCKHASH, sizeof(int),
+					sizeof(int), 1);
+		do {
+			prog[*fixup_map_sockhash].imm = map_fds[10];
+			fixup_map_sockhash++;
+		} while (*fixup_map_sockhash);
+	}
+	if (*fixup_map_xskmap) {
+		map_fds[11] = create_map(BPF_MAP_TYPE_XSKMAP, sizeof(int),
+					sizeof(int), 1);
+		do {
+			prog[*fixup_map_xskmap].imm = map_fds[11];
+			fixup_map_xskmap++;
+		} while (*fixup_map_xskmap);
+	}
+	if (*fixup_map_stacktrace) {
+		map_fds[12] = create_map(BPF_MAP_TYPE_STACK_TRACE, sizeof(u32),
+					 sizeof(u64), 1);
+		do {
+			prog[*fixup_map_stacktrace].imm = map_fds[12];
+			fixup_map_stacktrace++;
+		} while (*fixup_map_stacktrace);
+	}
+	if (*fixup_map_spin_lock) {
+		map_fds[13] = create_map_spin_lock();
+		do {
+			prog[*fixup_map_spin_lock].imm = map_fds[13];
+			fixup_map_spin_lock++;
+		} while (*fixup_map_spin_lock);
+	}
+	if (*fixup_map_array_ro) {
+		map_fds[14] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+					   sizeof(struct test_val), 1,
+					   BPF_F_RDONLY_PROG);
+		update_map(map_fds[14], 0);
+		do {
+			prog[*fixup_map_array_ro].imm = map_fds[14];
+			fixup_map_array_ro++;
+		} while (*fixup_map_array_ro);
+	}
+	if (*fixup_map_array_wo) {
+		map_fds[15] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+					   sizeof(struct test_val), 1,
+					   BPF_F_WRONLY_PROG);
+		update_map(map_fds[15], 0);
+		do {
+			prog[*fixup_map_array_wo].imm = map_fds[15];
+			fixup_map_array_wo++;
+		} while (*fixup_map_array_wo);
+	}
+	if (*fixup_map_array_small) {
+		map_fds[16] = __create_map(BPF_MAP_TYPE_ARRAY, sizeof(int),
+					   1, 1, 0);
+		update_map(map_fds[16], 0);
+		do {
+			prog[*fixup_map_array_small].imm = map_fds[16];
+			fixup_map_array_small++;
+		} while (*fixup_map_array_small);
+	}
+	if (*fixup_sk_storage_map) {
+		map_fds[17] = create_sk_storage_map();
+		do {
+			prog[*fixup_sk_storage_map].imm = map_fds[17];
+			fixup_sk_storage_map++;
+		} while (*fixup_sk_storage_map);
+	}
+	if (*fixup_map_event_output) {
+		map_fds[18] = __create_map(BPF_MAP_TYPE_PERF_EVENT_ARRAY,
+					   sizeof(int), sizeof(int), 1, 0);
+		do {
+			prog[*fixup_map_event_output].imm = map_fds[18];
+			fixup_map_event_output++;
+		} while (*fixup_map_event_output);
+	}
+	if (*fixup_map_reuseport_array) {
+		map_fds[19] = __create_map(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY,
+					   sizeof(u32), sizeof(u64), 1, 0);
+		do {
+			prog[*fixup_map_reuseport_array].imm = map_fds[19];
+			fixup_map_reuseport_array++;
+		} while (*fixup_map_reuseport_array);
+	}
+	if (*fixup_map_ringbuf) {
+		map_fds[20] = create_map(BPF_MAP_TYPE_RINGBUF, 0,
+					 0, getpagesize());
+		do {
+			prog[*fixup_map_ringbuf].imm = map_fds[20];
+			fixup_map_ringbuf++;
+		} while (*fixup_map_ringbuf);
+	}
+	if (*fixup_map_timer) {
+		map_fds[21] = create_map_timer();
+		do {
+			prog[*fixup_map_timer].imm = map_fds[21];
+			fixup_map_timer++;
+		} while (*fixup_map_timer);
+	}
+	if (*fixup_map_kptr) {
+		map_fds[22] = create_map_kptr();
+		do {
+			prog[*fixup_map_kptr].imm = map_fds[22];
+			fixup_map_kptr++;
+		} while (*fixup_map_kptr);
+	}
+
+	fixup_prog_kfuncs(prog, fd_array, test->fixup_kfunc_btf_id);
+}
+
+static int set_admin(bool admin)
+{
+	int err;
+
+	if (admin) {
+		err = cap_enable_effective(ADMIN_CAPS, NULL);
+		if (err)
+			perror("cap_enable_effective(ADMIN_CAPS)");
+	} else {
+		err = cap_disable_effective(ADMIN_CAPS, NULL);
+		if (err)
+			perror("cap_disable_effective(ADMIN_CAPS)");
+	}
+
+	return err;
+}
+
+static int do_prog_test_run(int fd_prog, bool unpriv, uint32_t expected_val,
+			    void *data, size_t size_data)
+{
+	__u8 tmp[TEST_DATA_LEN << 2];
+	__u32 size_tmp = sizeof(tmp);
+	int err, saved_errno;
+	LIBBPF_OPTS(bpf_test_run_opts, topts,
+		.data_in = data,
+		.data_size_in = size_data,
+		.data_out = tmp,
+		.data_size_out = size_tmp,
+		.repeat = 1,
+	);
+
+	if (unpriv)
+		set_admin(true);
+	err = bpf_prog_test_run_opts(fd_prog, &topts);
+	saved_errno = errno;
+
+	if (unpriv)
+		set_admin(false);
+
+	if (err) {
+		switch (saved_errno) {
+		case ENOTSUPP:
+			printf("Did not run the program (not supported) ");
+			return 0;
+		case EPERM:
+			if (unpriv) {
+				printf("Did not run the program (no permission) ");
+				return 0;
+			}
+			/* fallthrough; */
+		default:
+			printf("FAIL: Unexpected bpf_prog_test_run error (%s) ",
+				strerror(saved_errno));
+			return err;
+		}
+	}
+
+	if (topts.retval != expected_val && expected_val != POINTER_VALUE) {
+		printf("FAIL retval %d != %d ", topts.retval, expected_val);
+		return 1;
+	}
+
+	return 0;
+}
+
+/* Returns true if every part of exp (tab-separated) appears in log, in order.
+ *
+ * If exp is an empty string, returns true.
+ */
+static bool cmp_str_seq(const char *log, const char *exp)
+{
+	char needle[200];
+	const char *p, *q;
+	int len;
+
+	do {
+		if (!strlen(exp))
+			break;
+		p = strchr(exp, '\t');
+		if (!p)
+			p = exp + strlen(exp);
+
+		len = p - exp;
+		if (len >= sizeof(needle) || !len) {
+			printf("FAIL\nTestcase bug\n");
+			return false;
+		}
+		strncpy(needle, exp, len);
+		needle[len] = 0;
+		q = strstr(log, needle);
+		if (!q) {
+			printf("FAIL\nUnexpected verifier log!\n"
+			       "EXP: %s\nRES:\n", needle);
+			return false;
+		}
+		log = q + len;
+		exp = p + 1;
+	} while (*p);
+	return true;
+}
+
+static bool is_null_insn(struct bpf_insn *insn)
+{
+	struct bpf_insn null_insn = {};
+
+	return memcmp(insn, &null_insn, sizeof(null_insn)) == 0;
+}
+
+static bool is_skip_insn(struct bpf_insn *insn)
+{
+	struct bpf_insn skip_insn = SKIP_INSNS();
+
+	return memcmp(insn, &skip_insn, sizeof(skip_insn)) == 0;
+}
+
+static int null_terminated_insn_len(struct bpf_insn *seq, int max_len)
+{
+	int i;
+
+	for (i = 0; i < max_len; ++i) {
+		if (is_null_insn(&seq[i]))
+			return i;
+	}
+	return max_len;
+}
+
+static bool compare_masked_insn(struct bpf_insn *orig, struct bpf_insn *masked)
+{
+	struct bpf_insn orig_masked;
+
+	memcpy(&orig_masked, orig, sizeof(orig_masked));
+	if (masked->imm == INSN_IMM_MASK)
+		orig_masked.imm = INSN_IMM_MASK;
+	if (masked->off == INSN_OFF_MASK)
+		orig_masked.off = INSN_OFF_MASK;
+
+	return memcmp(&orig_masked, masked, sizeof(orig_masked)) == 0;
+}
+
+static int find_insn_subseq(struct bpf_insn *seq, struct bpf_insn *subseq,
+			    int seq_len, int subseq_len)
+{
+	int i, j;
+
+	if (subseq_len > seq_len)
+		return -1;
+
+	for (i = 0; i < seq_len - subseq_len + 1; ++i) {
+		bool found = true;
+
+		for (j = 0; j < subseq_len; ++j) {
+			if (!compare_masked_insn(&seq[i + j], &subseq[j])) {
+				found = false;
+				break;
+			}
+		}
+		if (found)
+			return i;
+	}
+
+	return -1;
+}
+
+static int find_skip_insn_marker(struct bpf_insn *seq, int len)
+{
+	int i;
+
+	for (i = 0; i < len; ++i)
+		if (is_skip_insn(&seq[i]))
+			return i;
+
+	return -1;
+}
+
+/* Return true if all sub-sequences in `subseqs` could be found in
+ * `seq` one after another. Sub-sequences are separated by a single
+ * nil instruction.
+ */
+static bool find_all_insn_subseqs(struct bpf_insn *seq, struct bpf_insn *subseqs,
+				  int seq_len, int max_subseqs_len)
+{
+	int subseqs_len = null_terminated_insn_len(subseqs, max_subseqs_len);
+
+	while (subseqs_len > 0) {
+		int skip_idx = find_skip_insn_marker(subseqs, subseqs_len);
+		int cur_subseq_len = skip_idx < 0 ? subseqs_len : skip_idx;
+		int subseq_idx = find_insn_subseq(seq, subseqs,
+						  seq_len, cur_subseq_len);
+
+		if (subseq_idx < 0)
+			return false;
+		seq += subseq_idx + cur_subseq_len;
+		seq_len -= subseq_idx + cur_subseq_len;
+		subseqs += cur_subseq_len + 1;
+		subseqs_len -= cur_subseq_len + 1;
+	}
+
+	return true;
+}
+
+static void print_insn(struct bpf_insn *buf, int cnt)
+{
+	int i;
+
+	printf("  addr  op d s off  imm\n");
+	for (i = 0; i < cnt; ++i) {
+		struct bpf_insn *insn = &buf[i];
+
+		if (is_null_insn(insn))
+			break;
+
+		if (is_skip_insn(insn))
+			printf("  ...\n");
+		else
+			printf("  %04x: %02x %1x %x %04hx %08x\n",
+			       i, insn->code, insn->dst_reg,
+			       insn->src_reg, insn->off, insn->imm);
+	}
+}
+
+static bool check_xlated_program(struct bpf_test *test, int fd_prog)
+{
+	struct bpf_insn *buf;
+	unsigned int cnt;
+	bool result = true;
+	bool check_expected = !is_null_insn(test->expected_insns);
+	bool check_unexpected = !is_null_insn(test->unexpected_insns);
+
+	if (!check_expected && !check_unexpected)
+		goto out;
+
+	if (get_xlated_program(fd_prog, &buf, &cnt)) {
+		printf("FAIL: can't get xlated program\n");
+		result = false;
+		goto out;
+	}
+
+	if (check_expected &&
+	    !find_all_insn_subseqs(buf, test->expected_insns,
+				   cnt, MAX_EXPECTED_INSNS)) {
+		printf("FAIL: can't find expected subsequence of instructions\n");
+		result = false;
+		if (verbose) {
+			printf("Program:\n");
+			print_insn(buf, cnt);
+			printf("Expected subsequence:\n");
+			print_insn(test->expected_insns, MAX_EXPECTED_INSNS);
+		}
+	}
+
+	if (check_unexpected &&
+	    find_all_insn_subseqs(buf, test->unexpected_insns,
+				  cnt, MAX_UNEXPECTED_INSNS)) {
+		printf("FAIL: found unexpected subsequence of instructions\n");
+		result = false;
+		if (verbose) {
+			printf("Program:\n");
+			print_insn(buf, cnt);
+			printf("Un-expected subsequence:\n");
+			print_insn(test->unexpected_insns, MAX_UNEXPECTED_INSNS);
+		}
+	}
+
+	free(buf);
+ out:
+	return result;
+}
+
+static void do_test_single(struct bpf_test *test, bool unpriv,
+			   int *passes, int *errors)
+{
+	int fd_prog, btf_fd, expected_ret, alignment_prevented_execution;
+	int prog_len, prog_type = test->prog_type;
+	struct bpf_insn *prog = test->insns;
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+	int run_errs, run_successes;
+	int map_fds[MAX_NR_MAPS];
+	const char *expected_err;
+	int fd_array[2] = { -1, -1 };
+	int saved_errno;
+	int fixup_skips;
+	__u32 pflags;
+	int i, err;
+
+	if ((test->flags & F_NEEDS_JIT_ENABLED) && jit_disabled) {
+		printf("SKIP (requires BPF JIT)\n");
+		skips++;
+		sched_yield();
+		return;
+	}
+
+	fd_prog = -1;
+	for (i = 0; i < MAX_NR_MAPS; i++)
+		map_fds[i] = -1;
+	btf_fd = -1;
+
+	if (!prog_type)
+		prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+	fixup_skips = skips;
+	do_test_fixup(test, prog_type, prog, map_fds, &fd_array[1]);
+	if (test->fill_insns) {
+		prog = test->fill_insns;
+		prog_len = test->prog_len;
+	} else {
+		prog_len = probe_filter_length(prog);
+	}
+	/* If there were some map skips during fixup due to missing bpf
+	 * features, skip this test.
+	 */
+	if (fixup_skips != skips)
+		return;
+
+	pflags = testing_prog_flags();
+	if (test->flags & F_LOAD_WITH_STRICT_ALIGNMENT)
+		pflags |= BPF_F_STRICT_ALIGNMENT;
+	if (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS)
+		pflags |= BPF_F_ANY_ALIGNMENT;
+	if (test->flags & ~3)
+		pflags |= test->flags;
+
+	expected_ret = unpriv && test->result_unpriv != UNDEF ?
+		       test->result_unpriv : test->result;
+	expected_err = unpriv && test->errstr_unpriv ?
+		       test->errstr_unpriv : test->errstr;
+
+	opts.expected_attach_type = test->expected_attach_type;
+	if (expected_ret == VERBOSE_ACCEPT)
+		opts.log_level = 2;
+	else if (verbose)
+		opts.log_level = verif_log_level | 4; /* force stats */
+	else
+		opts.log_level = DEFAULT_LIBBPF_LOG_LEVEL;
+	opts.prog_flags = pflags;
+	if (fd_array[1] != -1)
+		opts.fd_array = &fd_array[0];
+
+	if ((prog_type == BPF_PROG_TYPE_TRACING ||
+	     prog_type == BPF_PROG_TYPE_LSM) && test->kfunc) {
+		int attach_btf_id;
+
+		attach_btf_id = libbpf_find_vmlinux_btf_id(test->kfunc,
+						opts.expected_attach_type);
+		if (attach_btf_id < 0) {
+			printf("FAIL\nFailed to find BTF ID for '%s'!\n",
+				test->kfunc);
+			(*errors)++;
+			return;
+		}
+
+		opts.attach_btf_id = attach_btf_id;
+	}
+
+	if (test->btf_types[0] != 0) {
+		btf_fd = load_btf_for_test(test);
+		if (btf_fd < 0)
+			goto fail_log;
+		opts.prog_btf_fd = btf_fd;
+	}
+
+	if (test->func_info_cnt != 0) {
+		opts.func_info = test->func_info;
+		opts.func_info_cnt = test->func_info_cnt;
+		opts.func_info_rec_size = sizeof(test->func_info[0]);
+	}
+
+	opts.log_buf = bpf_vlog;
+	opts.log_size = sizeof(bpf_vlog);
+	fd_prog = bpf_prog_load(prog_type, NULL, "GPL", prog, prog_len, &opts);
+	saved_errno = errno;
+
+	/* BPF_PROG_TYPE_TRACING requires more setup and
+	 * bpf_probe_prog_type won't give correct answer
+	 */
+	if (fd_prog < 0 && prog_type != BPF_PROG_TYPE_TRACING &&
+	    !libbpf_probe_bpf_prog_type(prog_type, NULL)) {
+		printf("SKIP (unsupported program type %d)\n", prog_type);
+		skips++;
+		goto close_fds;
+	}
+
+	if (fd_prog < 0 && saved_errno == ENOTSUPP) {
+		printf("SKIP (program uses an unsupported feature)\n");
+		skips++;
+		goto close_fds;
+	}
+
+	alignment_prevented_execution = 0;
+
+	if (expected_ret == ACCEPT || expected_ret == VERBOSE_ACCEPT) {
+		if (fd_prog < 0) {
+			printf("FAIL\nFailed to load prog '%s'!\n",
+			       strerror(saved_errno));
+			goto fail_log;
+		}
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+		if (fd_prog >= 0 &&
+		    (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS))
+			alignment_prevented_execution = 1;
+#endif
+		if (expected_ret == VERBOSE_ACCEPT && !cmp_str_seq(bpf_vlog, expected_err)) {
+			goto fail_log;
+		}
+	} else {
+		if (fd_prog >= 0) {
+			printf("FAIL\nUnexpected success to load!\n");
+			goto fail_log;
+		}
+		if (!expected_err || !cmp_str_seq(bpf_vlog, expected_err)) {
+			printf("FAIL\nUnexpected error message!\n\tEXP: %s\n\tRES: %s\n",
+			      expected_err, bpf_vlog);
+			goto fail_log;
+		}
+	}
+
+	if (!unpriv && test->insn_processed) {
+		uint32_t insn_processed;
+		char *proc;
+
+		proc = strstr(bpf_vlog, "processed ");
+		insn_processed = atoi(proc + 10);
+		if (test->insn_processed != insn_processed) {
+			printf("FAIL\nUnexpected insn_processed %u vs %u\n",
+			       insn_processed, test->insn_processed);
+			goto fail_log;
+		}
+	}
+
+	if (verbose)
+		printf(", verifier log:\n%s", bpf_vlog);
+
+	if (!check_xlated_program(test, fd_prog))
+		goto fail_log;
+
+	run_errs = 0;
+	run_successes = 0;
+	if (!alignment_prevented_execution && fd_prog >= 0 && test->runs >= 0) {
+		uint32_t expected_val;
+		int i;
+
+		if (!test->runs)
+			test->runs = 1;
+
+		for (i = 0; i < test->runs; i++) {
+			if (unpriv && test->retvals[i].retval_unpriv)
+				expected_val = test->retvals[i].retval_unpriv;
+			else
+				expected_val = test->retvals[i].retval;
+
+			err = do_prog_test_run(fd_prog, unpriv, expected_val,
+					       test->retvals[i].data,
+					       sizeof(test->retvals[i].data));
+			if (err) {
+				printf("(run %d/%d) ", i + 1, test->runs);
+				run_errs++;
+			} else {
+				run_successes++;
+			}
+		}
+	}
+
+	if (!run_errs) {
+		(*passes)++;
+		if (run_successes > 1)
+			printf("%d cases ", run_successes);
+		printf("OK");
+		if (alignment_prevented_execution)
+			printf(" (NOTE: not executed due to unknown alignment)");
+		printf("\n");
+	} else {
+		printf("\n");
+		goto fail_log;
+	}
+close_fds:
+	if (test->fill_insns)
+		free(test->fill_insns);
+	close(fd_prog);
+	close(btf_fd);
+	for (i = 0; i < MAX_NR_MAPS; i++)
+		close(map_fds[i]);
+	sched_yield();
+	return;
+fail_log:
+	(*errors)++;
+	printf("%s", bpf_vlog);
+	goto close_fds;
+}
+
+static bool is_admin(void)
+{
+	__u64 caps;
+
+	/* The test checks for finer cap as CAP_NET_ADMIN,
+	 * CAP_PERFMON, and CAP_BPF instead of CAP_SYS_ADMIN.
+	 * Thus, disable CAP_SYS_ADMIN at the beginning.
+	 */
+	if (cap_disable_effective(1ULL << CAP_SYS_ADMIN, &caps)) {
+		perror("cap_disable_effective(CAP_SYS_ADMIN)");
+		return false;
+	}
+
+	return (caps & ADMIN_CAPS) == ADMIN_CAPS;
+}
+
+static bool test_as_unpriv(struct bpf_test *test)
+{
+#ifndef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+	/* Some architectures have strict alignment requirements. In
+	 * that case, the BPF verifier detects if a program has
+	 * unaligned accesses and rejects them. A user can pass
+	 * BPF_F_ANY_ALIGNMENT to a program to override this
+	 * check. That, however, will only work when a privileged user
+	 * loads a program. An unprivileged user loading a program
+	 * with this flag will be rejected prior entering the
+	 * verifier.
+	 */
+	if (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS)
+		return false;
+#endif
+	return !test->prog_type ||
+	       test->prog_type == BPF_PROG_TYPE_SOCKET_FILTER ||
+	       test->prog_type == BPF_PROG_TYPE_CGROUP_SKB;
+}
+
+static int do_test(bool unpriv, unsigned int from, unsigned int to)
+{
+	int i, passes = 0, errors = 0;
+
+	/* ensure previous instance of the module is unloaded */
+	unload_bpf_testmod(verbose);
+
+	if (load_bpf_testmod(verbose))
+		return EXIT_FAILURE;
+
+	for (i = from; i < to; i++) {
+		struct bpf_test *test = &tests[i];
+
+		/* Program types that are not supported by non-root we
+		 * skip right away.
+		 */
+		if (test_as_unpriv(test) && unpriv_disabled) {
+			printf("#%d/u %s SKIP\n", i, test->descr);
+			skips++;
+		} else if (test_as_unpriv(test)) {
+			if (!unpriv)
+				set_admin(false);
+			printf("#%d/u %s ", i, test->descr);
+			do_test_single(test, true, &passes, &errors);
+			if (!unpriv)
+				set_admin(true);
+		}
+
+		if (unpriv) {
+			printf("#%d/p %s SKIP\n", i, test->descr);
+			skips++;
+		} else {
+			printf("#%d/p %s ", i, test->descr);
+			do_test_single(test, false, &passes, &errors);
+		}
+	}
+
+	unload_bpf_testmod(verbose);
+	kfuncs_cleanup();
+
+	printf("Summary: %d PASSED, %d SKIPPED, %d FAILED\n", passes,
+	       skips, errors);
+	return errors ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int from = 0, to = ARRAY_SIZE(tests);
+	bool unpriv = !is_admin();
+	int arg = 1;
+
+	if (argc > 1 && strcmp(argv[1], "-v") == 0) {
+		arg++;
+		verbose = true;
+		verif_log_level = 1;
+		argc--;
+	}
+	if (argc > 1 && strcmp(argv[1], "-vv") == 0) {
+		arg++;
+		verbose = true;
+		verif_log_level = 2;
+		argc--;
+	}
+
+	if (argc == 3) {
+		unsigned int l = atoi(argv[arg]);
+		unsigned int u = atoi(argv[arg + 1]);
+
+		if (l < to && u < to) {
+			from = l;
+			to   = u + 1;
+		}
+	} else if (argc == 2) {
+		unsigned int t = atoi(argv[arg]);
+
+		if (t < to) {
+			from = t;
+			to   = t + 1;
+		}
+	}
+
+	unpriv_disabled = get_unpriv_disabled();
+	if (unpriv && unpriv_disabled) {
+		printf("Cannot run as unprivileged user with sysctl %s.\n",
+		       UNPRIV_SYSCTL);
+		return EXIT_FAILURE;
+	}
+
+	jit_disabled = !is_jit_enabled();
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	bpf_semi_rand_init();
+	return do_test(unpriv, from, to);
+}
diff --git a/tools/testing/selftests/bpf/test_xdp_features.sh b/tools/testing/selftests/bpf/test_xdp_features.sh
new file mode 100755
index 000000000000..0aa71c4455c0
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_xdp_features.sh
@@ -0,0 +1,107 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+readonly NS="ns1-$(mktemp -u XXXXXX)"
+readonly V0_IP4=10.10.0.11
+readonly V1_IP4=10.10.0.1
+readonly V0_IP6=2001:db8::11
+readonly V1_IP6=2001:db8::1
+
+ret=1
+
+setup() {
+	{
+		ip netns add ${NS}
+
+		ip link add v1 type veth peer name v0 netns ${NS}
+
+		ip link set v1 up
+		ip addr add $V1_IP4/24 dev v1
+		ip addr add $V1_IP6/64 nodad dev v1
+		ip -n ${NS} link set dev v0 up
+		ip -n ${NS} addr add $V0_IP4/24 dev v0
+		ip -n ${NS} addr add $V0_IP6/64 nodad dev v0
+
+		# Enable XDP mode and disable checksum offload
+		ethtool -K v1 gro on
+		ethtool -K v1 tx-checksumming off
+		ip netns exec ${NS} ethtool -K v0 gro on
+		ip netns exec ${NS} ethtool -K v0 tx-checksumming off
+	} > /dev/null 2>&1
+}
+
+cleanup() {
+	ip link del v1 2> /dev/null
+	ip netns del ${NS} 2> /dev/null
+	[ "$(pidof xdp_features)" = "" ] || kill $(pidof xdp_features) 2> /dev/null
+}
+
+wait_for_dut_server() {
+	while sleep 1; do
+		ss -tlp | grep -q xdp_features
+		[ $? -eq 0 ] && break
+	done
+}
+
+test_xdp_features() {
+	setup
+
+	## XDP_PASS
+	./xdp_features -f XDP_PASS -D $V1_IP6 -T $V0_IP6 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_PASS \
+					   -D $V1_IP6 -C $V1_IP6 \
+					   -T $V0_IP6 v0
+	[ $? -ne 0 ] && exit
+
+	## XDP_DROP
+	./xdp_features -f XDP_DROP -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_DROP \
+					   -D ::ffff:$V1_IP4 \
+					   -C ::ffff:$V1_IP4 \
+					   -T ::ffff:$V0_IP4 v0
+	[ $? -ne 0 ] && exit
+
+	## XDP_ABORTED
+	./xdp_features -f XDP_ABORTED -D $V1_IP6 -T $V0_IP6 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_ABORTED \
+					   -D $V1_IP6 -C $V1_IP6 \
+					   -T $V0_IP6 v0
+	[ $? -ne 0 ] && exit
+
+	## XDP_TX
+	./xdp_features -f XDP_TX -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_TX \
+					   -D ::ffff:$V1_IP4 \
+					   -C ::ffff:$V1_IP4 \
+					   -T ::ffff:$V0_IP4 v0
+	[ $? -ne 0 ] && exit
+
+	## XDP_REDIRECT
+	./xdp_features -f XDP_REDIRECT -D $V1_IP6 -T $V0_IP6 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_REDIRECT \
+					   -D $V1_IP6 -C $V1_IP6 \
+					   -T $V0_IP6 v0
+	[ $? -ne 0 ] && exit
+
+	## XDP_NDO_XMIT
+	./xdp_features -f XDP_NDO_XMIT -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
+	wait_for_dut_server
+	ip netns exec ${NS} ./xdp_features -t -f XDP_NDO_XMIT \
+					   -D ::ffff:$V1_IP4 \
+					   -C ::ffff:$V1_IP4 \
+					   -T ::ffff:$V0_IP4 v0
+	ret=$?
+	cleanup
+}
+
+set -e
+trap cleanup 2 3 6 9
+
+test_xdp_features
+
+exit $ret
diff --git a/tools/testing/selftests/bpf/test_xdping.sh b/tools/testing/selftests/bpf/test_xdping.sh
new file mode 100755
index 000000000000..c3d82e0a7378
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_xdping.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# xdping tests
+#   Here we setup and teardown configuration required to run
+#   xdping, exercising its options.
+#
+#   Setup is similar to test_tunnel tests but without the tunnel.
+#
+# Topology:
+# ---------
+#     root namespace   |     tc_ns0 namespace
+#                      |
+#      ----------      |     ----------
+#      |  veth1  | --------- |  veth0  |
+#      ----------    peer    ----------
+#
+# Device Configuration
+# --------------------
+# Root namespace with BPF
+# Device names and addresses:
+#	veth1 IP: 10.1.1.200
+#	xdp added to veth1, xdpings originate from here.
+#
+# Namespace tc_ns0 with BPF
+# Device names and addresses:
+#       veth0 IPv4: 10.1.1.100
+#	For some tests xdping run in server mode here.
+#
+
+readonly TARGET_IP="10.1.1.100"
+readonly TARGET_NS="xdp_ns0"
+
+readonly LOCAL_IP="10.1.1.200"
+
+setup()
+{
+	ip netns add $TARGET_NS
+	ip link add veth0 type veth peer name veth1
+	ip link set veth0 netns $TARGET_NS
+	ip netns exec $TARGET_NS ip addr add ${TARGET_IP}/24 dev veth0
+	ip addr add ${LOCAL_IP}/24 dev veth1
+	ip netns exec $TARGET_NS ip link set veth0 up
+	ip link set veth1 up
+}
+
+cleanup()
+{
+	set +e
+	ip netns delete $TARGET_NS 2>/dev/null
+	ip link del veth1 2>/dev/null
+	if [[ $server_pid -ne 0 ]]; then
+		kill -TERM $server_pid
+	fi
+}
+
+test()
+{
+	client_args="$1"
+	server_args="$2"
+
+	echo "Test client args '$client_args'; server args '$server_args'"
+
+	server_pid=0
+	if [[ -n "$server_args" ]]; then
+		ip netns exec $TARGET_NS ./xdping $server_args &
+		server_pid=$!
+		sleep 10
+	fi
+	./xdping $client_args $TARGET_IP
+
+	if [[ $server_pid -ne 0 ]]; then
+		kill -TERM $server_pid
+		server_pid=0
+	fi
+
+	echo "Test client args '$client_args'; server args '$server_args': PASS"
+}
+
+set -e
+
+server_pid=0
+
+trap cleanup EXIT
+
+setup
+
+for server_args in "" "-I veth0 -s -S" ; do
+	# client in skb mode
+	client_args="-I veth1 -S"
+	test "$client_args" "$server_args"
+
+	# client with count of 10 RTT measurements.
+	client_args="-I veth1 -S -c 10"
+	test "$client_args" "$server_args"
+done
+
+# Test drv mode
+test "-I veth1 -N" "-I veth0 -s -N"
+test "-I veth1 -N -c 10" "-I veth0 -s -N"
+
+echo "OK. All tests passed"
+exit 0
diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
new file mode 100755
index 000000000000..62db060298a4
--- /dev/null
+++ b/tools/testing/selftests/bpf/test_xsk.sh
@@ -0,0 +1,246 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 2020 Intel Corporation, Weqaar Janjua <weqaar.a.janjua@intel.com>
+
+# AF_XDP selftests based on veth
+#
+# End-to-end AF_XDP over Veth test
+#
+# Topology:
+# ---------
+#                 -----------
+#               _ | Process | _
+#              /  -----------  \
+#             /        |        \
+#            /         |         \
+#      -----------     |     -----------
+#      | Thread1 |     |     | Thread2 |
+#      -----------     |     -----------
+#           |          |          |
+#      -----------     |     -----------
+#      |  xskX   |     |     |  xskY   |
+#      -----------     |     -----------
+#           |          |          |
+#      -----------     |     ----------
+#      |  vethX  | --------- |  vethY |
+#      -----------   peer    ----------
+#
+# AF_XDP is an address family optimized for high performance packet processing,
+# it is XDP’s user-space interface.
+#
+# An AF_XDP socket is linked to a single UMEM which is a region of virtual
+# contiguous memory, divided into equal-sized frames.
+#
+# Refer to AF_XDP Kernel Documentation for detailed information:
+# https://www.kernel.org/doc/html/latest/networking/af_xdp.html
+#
+# Prerequisites setup by script:
+#
+#   Set up veth interfaces as per the topology shown ^^:
+#   * setup two veth interfaces
+#   ** veth<xxxx>
+#   ** veth<yyyy>
+#   *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid
+#       conflict with any existing interface
+#   * tests the veth and xsk layers of the topology
+#
+# See the source xskxceiver.c for information on each test
+#
+# Kernel configuration:
+# ---------------------
+# See "config" file for recommended kernel config options.
+#
+# Turn on XDP sockets and veth support when compiling i.e.
+# 	Networking support -->
+# 		Networking options -->
+# 			[ * ] XDP sockets
+#
+# Executing Tests:
+# ----------------
+# Must run with CAP_NET_ADMIN capability.
+#
+# Run:
+#   sudo ./test_xsk.sh
+#
+# If running from kselftests:
+#   sudo make run_tests
+#
+# Run with verbose output:
+#   sudo ./test_xsk.sh -v
+#
+# Set up veth interfaces and leave them up so xskxceiver can be launched in a debugger:
+#   sudo ./test_xsk.sh -d
+#
+# Run test suite for physical device in loopback mode
+#   sudo ./test_xsk.sh -i IFACE
+#
+# Run test suite in a specific mode only [skb,drv,zc]
+#   sudo ./test_xsk.sh -m MODE
+#
+# List available tests
+#   ./test_xsk.sh -l
+#
+# Run a specific test from the test suite
+#   sudo ./test_xsk.sh -t TEST_NAME
+#
+# Display the available command line options
+#   ./test_xsk.sh -h
+
+. xsk_prereqs.sh
+
+ETH=""
+
+while getopts "vi:dm:lt:h" flag
+do
+	case "${flag}" in
+		v) verbose=1;;
+		d) debug=1;;
+		i) ETH=${OPTARG};;
+		m) MODE=${OPTARG};;
+		l) list=1;;
+		t) TEST=${OPTARG};;
+		h) help=1;;
+	esac
+done
+
+TEST_NAME="PREREQUISITES"
+
+URANDOM=/dev/urandom
+[ ! -e "${URANDOM}" ] && { echo "${URANDOM} not found. Skipping tests."; test_exit $ksft_fail; }
+
+VETH0_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' | fold -w 256 | head -n 1 | head --bytes 4)
+VETH0=ve${VETH0_POSTFIX}
+VETH1_POSTFIX=$(cat ${URANDOM} | tr -dc '0-9' | fold -w 256 | head -n 1 | head --bytes 4)
+VETH1=ve${VETH1_POSTFIX}
+MTU=1500
+
+trap ctrl_c INT
+
+function ctrl_c() {
+        cleanup_exit ${VETH0} ${VETH1}
+	exit 1
+}
+
+setup_vethPairs() {
+	if [[ $verbose -eq 1 ]]; then
+	        echo "setting up ${VETH0}"
+	fi
+	ip link add ${VETH0} numtxqueues 4 numrxqueues 4 type veth peer name ${VETH1} numtxqueues 4 numrxqueues 4
+	if [ -f /proc/net/if_inet6 ]; then
+		echo 1 > /proc/sys/net/ipv6/conf/${VETH0}/disable_ipv6
+		echo 1 > /proc/sys/net/ipv6/conf/${VETH1}/disable_ipv6
+	fi
+	if [[ $verbose -eq 1 ]]; then
+	        echo "setting up ${VETH1}"
+	fi
+
+	if [[ $busy_poll -eq 1 ]]; then
+	        echo 2 > /sys/class/net/${VETH0}/napi_defer_hard_irqs
+		echo 200000 > /sys/class/net/${VETH0}/gro_flush_timeout
+		echo 2 > /sys/class/net/${VETH1}/napi_defer_hard_irqs
+		echo 200000 > /sys/class/net/${VETH1}/gro_flush_timeout
+	fi
+
+	ip link set ${VETH1} mtu ${MTU}
+	ip link set ${VETH0} mtu ${MTU}
+	ip link set ${VETH1} up
+	ip link set ${VETH0} up
+}
+
+if [[ $list -eq 1 ]]; then
+        ./${XSKOBJ} -l
+        exit
+fi
+
+if [[ $help -eq 1 ]]; then
+	./${XSKOBJ}
+        exit
+fi
+
+if [ ! -z $ETH ]; then
+	VETH0=${ETH}
+	VETH1=${ETH}
+else
+	validate_root_exec
+	validate_veth_support ${VETH0}
+	validate_ip_utility
+	setup_vethPairs
+
+	retval=$?
+	if [ $retval -ne 0 ]; then
+		test_status $retval "${TEST_NAME}"
+		cleanup_exit ${VETH0} ${VETH1}
+		exit $retval
+	fi
+fi
+
+
+if [[ $verbose -eq 1 ]]; then
+	ARGS+="-v "
+fi
+
+if [ -n "$MODE" ]; then
+	ARGS+="-m ${MODE} "
+fi
+
+if [ -n "$TEST" ]; then
+	ARGS+="-t ${TEST} "
+fi
+
+retval=$?
+test_status $retval "${TEST_NAME}"
+
+## START TESTS
+
+statusList=()
+
+TEST_NAME="XSK_SELFTESTS_${VETH0}_SOFTIRQ"
+
+if [[ $debug -eq 1 ]]; then
+    echo "-i" ${VETH0} "-i" ${VETH1}
+    exit
+fi
+
+exec_xskxceiver
+
+if [ -z $ETH ]; then
+	cleanup_exit ${VETH0} ${VETH1}
+else
+	cleanup_iface ${ETH} ${MTU}
+fi
+
+if [[ $list -eq 1 ]]; then
+    exit
+fi
+
+TEST_NAME="XSK_SELFTESTS_${VETH0}_BUSY_POLL"
+busy_poll=1
+
+if [ -z $ETH ]; then
+	setup_vethPairs
+fi
+exec_xskxceiver
+
+## END TESTS
+
+if [ -z $ETH ]; then
+	cleanup_exit ${VETH0} ${VETH1}
+else
+	cleanup_iface ${ETH} ${MTU}
+fi
+
+failures=0
+echo -e "\nSummary:"
+for i in "${!statusList[@]}"
+do
+	if [ ${statusList[$i]} -ne 0 ]; then
+	        test_status ${statusList[$i]} ${nameList[$i]}
+		failures=1
+	fi
+done
+
+if [ $failures -eq 0 ]; then
+        echo "All tests successful!"
+else
+	exit 1
+fi
diff --git a/tools/testing/selftests/bpf/testing_helpers.c b/tools/testing/selftests/bpf/testing_helpers.c
new file mode 100644
index 000000000000..16eb37e5bad6
--- /dev/null
+++ b/tools/testing/selftests/bpf/testing_helpers.c
@@ -0,0 +1,512 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+/* Copyright (C) 2019 Netronome Systems, Inc. */
+/* Copyright (C) 2020 Facebook, Inc. */
+#include <ctype.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include "disasm.h"
+#include "test_progs.h"
+#include "testing_helpers.h"
+#include <linux/membarrier.h>
+
+int parse_num_list(const char *s, bool **num_set, int *num_set_len)
+{
+	int i, set_len = 0, new_len, num, start = 0, end = -1;
+	bool *set = NULL, *tmp, parsing_end = false;
+	char *next;
+
+	while (s[0]) {
+		errno = 0;
+		num = strtol(s, &next, 10);
+		if (errno)
+			return -errno;
+
+		if (parsing_end)
+			end = num;
+		else
+			start = num;
+
+		if (!parsing_end && *next == '-') {
+			s = next + 1;
+			parsing_end = true;
+			continue;
+		} else if (*next == ',') {
+			parsing_end = false;
+			s = next + 1;
+			end = num;
+		} else if (*next == '\0') {
+			parsing_end = false;
+			s = next;
+			end = num;
+		} else {
+			return -EINVAL;
+		}
+
+		if (start > end)
+			return -EINVAL;
+
+		if (end + 1 > set_len) {
+			new_len = end + 1;
+			tmp = realloc(set, new_len);
+			if (!tmp) {
+				free(set);
+				return -ENOMEM;
+			}
+			for (i = set_len; i < start; i++)
+				tmp[i] = false;
+			set = tmp;
+			set_len = new_len;
+		}
+		for (i = start; i <= end; i++)
+			set[i] = true;
+	}
+
+	if (!set || parsing_end)
+		return -EINVAL;
+
+	*num_set = set;
+	*num_set_len = set_len;
+
+	return 0;
+}
+
+static int do_insert_test(struct test_filter_set *set,
+			  char *test_str,
+			  char *subtest_str)
+{
+	struct test_filter *tmp, *test;
+	char **ctmp;
+	int i;
+
+	for (i = 0; i < set->cnt; i++) {
+		test = &set->tests[i];
+
+		if (strcmp(test_str, test->name) == 0) {
+			free(test_str);
+			goto subtest;
+		}
+	}
+
+	tmp = realloc(set->tests, sizeof(*test) * (set->cnt + 1));
+	if (!tmp)
+		return -ENOMEM;
+
+	set->tests = tmp;
+	test = &set->tests[set->cnt];
+
+	test->name = test_str;
+	test->subtests = NULL;
+	test->subtest_cnt = 0;
+
+	set->cnt++;
+
+subtest:
+	if (!subtest_str)
+		return 0;
+
+	for (i = 0; i < test->subtest_cnt; i++) {
+		if (strcmp(subtest_str, test->subtests[i]) == 0) {
+			free(subtest_str);
+			return 0;
+		}
+	}
+
+	ctmp = realloc(test->subtests,
+		       sizeof(*test->subtests) * (test->subtest_cnt + 1));
+	if (!ctmp)
+		return -ENOMEM;
+
+	test->subtests = ctmp;
+	test->subtests[test->subtest_cnt] = subtest_str;
+
+	test->subtest_cnt++;
+
+	return 0;
+}
+
+static int insert_test(struct test_filter_set *set,
+		       char *test_spec,
+		       bool is_glob_pattern)
+{
+	char *pattern, *subtest_str, *ext_test_str, *ext_subtest_str = NULL;
+	int glob_chars = 0;
+
+	if (is_glob_pattern) {
+		pattern = "%s";
+	} else {
+		pattern = "*%s*";
+		glob_chars = 2;
+	}
+
+	subtest_str = strchr(test_spec, '/');
+	if (subtest_str) {
+		*subtest_str = '\0';
+		subtest_str += 1;
+	}
+
+	ext_test_str = malloc(strlen(test_spec) + glob_chars + 1);
+	if (!ext_test_str)
+		goto err;
+
+	sprintf(ext_test_str, pattern, test_spec);
+
+	if (subtest_str) {
+		ext_subtest_str = malloc(strlen(subtest_str) + glob_chars + 1);
+		if (!ext_subtest_str)
+			goto err;
+
+		sprintf(ext_subtest_str, pattern, subtest_str);
+	}
+
+	return do_insert_test(set, ext_test_str, ext_subtest_str);
+
+err:
+	free(ext_test_str);
+	free(ext_subtest_str);
+
+	return -ENOMEM;
+}
+
+int parse_test_list_file(const char *path,
+			 struct test_filter_set *set,
+			 bool is_glob_pattern)
+{
+	char *buf = NULL, *capture_start, *capture_end, *scan_end;
+	size_t buflen = 0;
+	int err = 0;
+	FILE *f;
+
+	f = fopen(path, "r");
+	if (!f) {
+		err = -errno;
+		fprintf(stderr, "Failed to open '%s': %d\n", path, err);
+		return err;
+	}
+
+	while (getline(&buf, &buflen, f) != -1) {
+		capture_start = buf;
+
+		while (isspace(*capture_start))
+			++capture_start;
+
+		capture_end = capture_start;
+		scan_end = capture_start;
+
+		while (*scan_end && *scan_end != '#') {
+			if (!isspace(*scan_end))
+				capture_end = scan_end;
+
+			++scan_end;
+		}
+
+		if (capture_end == capture_start)
+			continue;
+
+		*(++capture_end) = '\0';
+
+		err = insert_test(set, capture_start, is_glob_pattern);
+		if (err)
+			break;
+	}
+
+	fclose(f);
+	return err;
+}
+
+int parse_test_list(const char *s,
+		    struct test_filter_set *set,
+		    bool is_glob_pattern)
+{
+	char *input, *state = NULL, *test_spec;
+	int err = 0, cnt = 0;
+
+	input = strdup(s);
+	if (!input)
+		return -ENOMEM;
+
+	while ((test_spec = strtok_r(cnt++ ? NULL : input, ",", &state))) {
+		err = insert_test(set, test_spec, is_glob_pattern);
+		if (err)
+			break;
+	}
+
+	free(input);
+	return err;
+}
+
+__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info)
+{
+	__u32 info_len = sizeof(*info);
+	int err;
+
+	memset(info, 0, sizeof(*info));
+	err = bpf_link_get_info_by_fd(bpf_link__fd(link), info, &info_len);
+	if (err) {
+		printf("failed to get link info: %d\n", -errno);
+		return 0;
+	}
+	return info->prog_id;
+}
+
+int extra_prog_load_log_flags = 0;
+
+int testing_prog_flags(void)
+{
+	static int cached_flags = -1;
+	static int prog_flags[] = { BPF_F_TEST_RND_HI32, BPF_F_TEST_REG_INVARIANTS };
+	static struct bpf_insn insns[] = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	};
+	int insn_cnt = ARRAY_SIZE(insns), i, fd, flags = 0;
+	LIBBPF_OPTS(bpf_prog_load_opts, opts);
+
+	if (cached_flags >= 0)
+		return cached_flags;
+
+	for (i = 0; i < ARRAY_SIZE(prog_flags); i++) {
+		opts.prog_flags = prog_flags[i];
+		fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, "flag-test", "GPL",
+				   insns, insn_cnt, &opts);
+		if (fd >= 0) {
+			flags |= prog_flags[i];
+			close(fd);
+		}
+	}
+
+	cached_flags = flags;
+	return cached_flags;
+}
+
+int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
+		       struct bpf_object **pobj, int *prog_fd)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts,
+		.kernel_log_level = extra_prog_load_log_flags,
+	);
+	struct bpf_object *obj;
+	struct bpf_program *prog;
+	__u32 flags;
+	int err;
+
+	obj = bpf_object__open_file(file, &opts);
+	if (!obj)
+		return -errno;
+
+	prog = bpf_object__next_program(obj, NULL);
+	if (!prog) {
+		err = -ENOENT;
+		goto err_out;
+	}
+
+	if (type != BPF_PROG_TYPE_UNSPEC && bpf_program__type(prog) != type)
+		bpf_program__set_type(prog, type);
+
+	flags = bpf_program__flags(prog) | testing_prog_flags();
+	bpf_program__set_flags(prog, flags);
+
+	err = bpf_object__load(obj);
+	if (err)
+		goto err_out;
+
+	*pobj = obj;
+	*prog_fd = bpf_program__fd(prog);
+
+	return 0;
+err_out:
+	bpf_object__close(obj);
+	return err;
+}
+
+int bpf_test_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+			  size_t insns_cnt, const char *license,
+			  __u32 kern_version, char *log_buf,
+			  size_t log_buf_sz)
+{
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.kern_version = kern_version,
+		.prog_flags = testing_prog_flags(),
+		.log_level = extra_prog_load_log_flags,
+		.log_buf = log_buf,
+		.log_size = log_buf_sz,
+	);
+
+	return bpf_prog_load(type, NULL, license, insns, insns_cnt, &opts);
+}
+
+__u64 read_perf_max_sample_freq(void)
+{
+	__u64 sample_freq = 5000; /* fallback to 5000 on error */
+	FILE *f;
+
+	f = fopen("/proc/sys/kernel/perf_event_max_sample_rate", "r");
+	if (f == NULL) {
+		printf("Failed to open /proc/sys/kernel/perf_event_max_sample_rate: err %d\n"
+		       "return default value: 5000\n", -errno);
+		return sample_freq;
+	}
+	if (fscanf(f, "%llu", &sample_freq) != 1) {
+		printf("Failed to parse /proc/sys/kernel/perf_event_max_sample_rate: err %d\n"
+		       "return default value: 5000\n", -errno);
+	}
+
+	fclose(f);
+	return sample_freq;
+}
+
+int finit_module(int fd, const char *param_values, int flags)
+{
+	return syscall(__NR_finit_module, fd, param_values, flags);
+}
+
+int delete_module(const char *name, int flags)
+{
+	return syscall(__NR_delete_module, name, flags);
+}
+
+int unload_module(const char *name, bool verbose)
+{
+	int ret, cnt = 0;
+
+	if (kern_sync_rcu())
+		fprintf(stdout, "Failed to trigger kernel-side RCU sync!\n");
+
+	for (;;) {
+		ret = delete_module(name, 0);
+		if (!ret || errno != EAGAIN)
+			break;
+		if (++cnt > 10000) {
+			fprintf(stdout, "Unload of %s timed out\n", name);
+			break;
+		}
+		usleep(100);
+	}
+
+	if (ret) {
+		if (errno == ENOENT) {
+			if (verbose)
+				fprintf(stdout, "%s.ko is already unloaded.\n", name);
+			return -1;
+		}
+		fprintf(stdout, "Failed to unload %s.ko from kernel: %d\n", name, -errno);
+		return -1;
+	}
+	if (verbose)
+		fprintf(stdout, "Successfully unloaded %s.ko.\n", name);
+	return 0;
+}
+
+static int __load_module(const char *path, const char *param_values, bool verbose)
+{
+	int fd;
+
+	if (verbose)
+		fprintf(stdout, "Loading %s...\n", path);
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stdout, "Can't find %s kernel module: %d\n", path, -errno);
+		return -ENOENT;
+	}
+	if (finit_module(fd, param_values, 0)) {
+		fprintf(stdout, "Failed to load %s into the kernel: %d\n", path, -errno);
+		close(fd);
+		return -EINVAL;
+	}
+	close(fd);
+
+	if (verbose)
+		fprintf(stdout, "Successfully loaded %s.\n", path);
+	return 0;
+}
+
+int load_module_params(const char *path, const char *param_values, bool verbose)
+{
+	return __load_module(path, param_values, verbose);
+}
+
+int load_module(const char *path, bool verbose)
+{
+	return __load_module(path, "", verbose);
+}
+
+int unload_bpf_testmod(bool verbose)
+{
+	return unload_module("bpf_testmod", verbose);
+}
+
+int load_bpf_testmod(bool verbose)
+{
+	return load_module("bpf_testmod.ko", verbose);
+}
+
+/*
+ * Trigger synchronize_rcu() in kernel.
+ */
+int kern_sync_rcu(void)
+{
+	return syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0, 0);
+}
+
+int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt)
+{
+	__u32 buf_element_size = sizeof(struct bpf_insn);
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	__u32 xlated_prog_len;
+
+	if (bpf_prog_get_info_by_fd(fd_prog, &info, &info_len)) {
+		perror("bpf_prog_get_info_by_fd failed");
+		return -1;
+	}
+
+	xlated_prog_len = info.xlated_prog_len;
+	if (xlated_prog_len % buf_element_size) {
+		printf("Program length %u is not multiple of %u\n",
+		       xlated_prog_len, buf_element_size);
+		return -1;
+	}
+
+	*cnt = xlated_prog_len / buf_element_size;
+	*buf = calloc(*cnt, buf_element_size);
+	if (!*buf) {
+		perror("can't allocate xlated program buffer");
+		return -ENOMEM;
+	}
+
+	bzero(&info, sizeof(info));
+	info.xlated_prog_len = xlated_prog_len;
+	info.xlated_prog_insns = (__u64)(unsigned long)*buf;
+	if (bpf_prog_get_info_by_fd(fd_prog, &info, &info_len)) {
+		perror("second bpf_prog_get_info_by_fd failed");
+		goto out_free_buf;
+	}
+
+	return 0;
+
+out_free_buf:
+	free(*buf);
+	*buf = NULL;
+	return -1;
+}
+
+bool is_jit_enabled(void)
+{
+	const char *jit_sysctl = "/proc/sys/net/core/bpf_jit_enable";
+	bool enabled = false;
+	int sysctl_fd;
+
+	sysctl_fd = open(jit_sysctl, O_RDONLY);
+	if (sysctl_fd != -1) {
+		char tmpc;
+
+		if (read(sysctl_fd, &tmpc, sizeof(tmpc)) == 1)
+			enabled = (tmpc != '0');
+		close(sysctl_fd);
+	}
+
+	return enabled;
+}
diff --git a/tools/testing/selftests/bpf/testing_helpers.h b/tools/testing/selftests/bpf/testing_helpers.h
new file mode 100644
index 000000000000..eb20d3772218
--- /dev/null
+++ b/tools/testing/selftests/bpf/testing_helpers.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+/* Copyright (C) 2020 Facebook, Inc. */
+
+#ifndef __TESTING_HELPERS_H
+#define __TESTING_HELPERS_H
+
+#include <stdbool.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <time.h>
+
+#define __TO_STR(x) #x
+#define TO_STR(x) __TO_STR(x)
+
+int parse_num_list(const char *s, bool **set, int *set_len);
+__u32 link_info_prog_id(const struct bpf_link *link, struct bpf_link_info *info);
+int bpf_prog_test_load(const char *file, enum bpf_prog_type type,
+		       struct bpf_object **pobj, int *prog_fd);
+int bpf_test_load_program(enum bpf_prog_type type, const struct bpf_insn *insns,
+			  size_t insns_cnt, const char *license,
+			  __u32 kern_version, char *log_buf,
+			  size_t log_buf_sz);
+
+/*
+ * below function is exported for testing in prog_test test
+ */
+struct test_filter_set;
+int parse_test_list(const char *s,
+		    struct test_filter_set *test_set,
+		    bool is_glob_pattern);
+int parse_test_list_file(const char *path,
+			 struct test_filter_set *test_set,
+			 bool is_glob_pattern);
+
+__u64 read_perf_max_sample_freq(void);
+int load_bpf_testmod(bool verbose);
+int unload_bpf_testmod(bool verbose);
+int kern_sync_rcu(void);
+int finit_module(int fd, const char *param_values, int flags);
+int delete_module(const char *name, int flags);
+int load_module(const char *path, bool verbose);
+int load_module_params(const char *path, const char *param_values, bool verbose);
+int unload_module(const char *name, bool verbose);
+
+static inline __u64 get_time_ns(void)
+{
+	struct timespec t;
+
+	clock_gettime(CLOCK_MONOTONIC, &t);
+
+	return (u64)t.tv_sec * 1000000000 + t.tv_nsec;
+}
+
+struct bpf_insn;
+/* Request BPF program instructions after all rewrites are applied,
+ * e.g. verifier.c:convert_ctx_access() is done.
+ */
+int get_xlated_program(int fd_prog, struct bpf_insn **buf, __u32 *cnt);
+int testing_prog_flags(void);
+bool is_jit_enabled(void);
+
+#endif /* __TESTING_HELPERS_H */
diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c
new file mode 100644
index 000000000000..eeaab7013ca2
--- /dev/null
+++ b/tools/testing/selftests/bpf/trace_helpers.c
@@ -0,0 +1,755 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <linux/perf_event.h>
+#include <linux/fs.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include "trace_helpers.h"
+#include <linux/limits.h>
+#include <libelf.h>
+#include <gelf.h>
+#include "bpf/hashmap.h"
+#include "bpf/libbpf_internal.h"
+#include "bpf_util.h"
+
+#define TRACEFS_PIPE	"/sys/kernel/tracing/trace_pipe"
+#define DEBUGFS_PIPE	"/sys/kernel/debug/tracing/trace_pipe"
+
+struct ksyms {
+	struct ksym *syms;
+	size_t sym_cap;
+	size_t sym_cnt;
+};
+
+static struct ksyms *ksyms;
+static pthread_mutex_t ksyms_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static int ksyms__add_symbol(struct ksyms *ksyms, const char *name,
+			     unsigned long addr)
+{
+	void *tmp;
+
+	tmp = strdup(name);
+	if (!tmp)
+		return -ENOMEM;
+	ksyms->syms[ksyms->sym_cnt].addr = addr;
+	ksyms->syms[ksyms->sym_cnt].name = tmp;
+	ksyms->sym_cnt++;
+	return 0;
+}
+
+void free_kallsyms_local(struct ksyms *ksyms)
+{
+	unsigned int i;
+
+	if (!ksyms)
+		return;
+
+	if (!ksyms->syms) {
+		free(ksyms);
+		return;
+	}
+
+	for (i = 0; i < ksyms->sym_cnt; i++)
+		free(ksyms->syms[i].name);
+	free(ksyms->syms);
+	free(ksyms);
+}
+
+static struct ksyms *load_kallsyms_local_common(ksym_cmp_t cmp_cb)
+{
+	FILE *f;
+	char func[256], buf[256];
+	char symbol;
+	void *addr;
+	int ret;
+	struct ksyms *ksyms;
+
+	f = fopen("/proc/kallsyms", "r");
+	if (!f)
+		return NULL;
+
+	ksyms = calloc(1, sizeof(struct ksyms));
+	if (!ksyms) {
+		fclose(f);
+		return NULL;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		if (sscanf(buf, "%p %c %s", &addr, &symbol, func) != 3)
+			break;
+		if (!addr)
+			continue;
+
+		ret = libbpf_ensure_mem((void **) &ksyms->syms, &ksyms->sym_cap,
+					sizeof(struct ksym), ksyms->sym_cnt + 1);
+		if (ret)
+			goto error;
+		ret = ksyms__add_symbol(ksyms, func, (unsigned long)addr);
+		if (ret)
+			goto error;
+	}
+	fclose(f);
+	qsort(ksyms->syms, ksyms->sym_cnt, sizeof(struct ksym), cmp_cb);
+	return ksyms;
+
+error:
+	fclose(f);
+	free_kallsyms_local(ksyms);
+	return NULL;
+}
+
+static int ksym_cmp(const void *p1, const void *p2)
+{
+	return ((struct ksym *)p1)->addr - ((struct ksym *)p2)->addr;
+}
+
+struct ksyms *load_kallsyms_local(void)
+{
+	return load_kallsyms_local_common(ksym_cmp);
+}
+
+struct ksyms *load_kallsyms_custom_local(ksym_cmp_t cmp_cb)
+{
+	return load_kallsyms_local_common(cmp_cb);
+}
+
+int load_kallsyms(void)
+{
+	pthread_mutex_lock(&ksyms_mutex);
+	if (!ksyms)
+		ksyms = load_kallsyms_local();
+	pthread_mutex_unlock(&ksyms_mutex);
+	return ksyms ? 0 : 1;
+}
+
+struct ksym *ksym_search_local(struct ksyms *ksyms, long key)
+{
+	int start = 0, end = ksyms->sym_cnt;
+	int result;
+
+	/* kallsyms not loaded. return NULL */
+	if (ksyms->sym_cnt <= 0)
+		return NULL;
+
+	while (start < end) {
+		size_t mid = start + (end - start) / 2;
+
+		result = key - ksyms->syms[mid].addr;
+		if (result < 0)
+			end = mid;
+		else if (result > 0)
+			start = mid + 1;
+		else
+			return &ksyms->syms[mid];
+	}
+
+	if (start >= 1 && ksyms->syms[start - 1].addr < key &&
+	    key < ksyms->syms[start].addr)
+		/* valid ksym */
+		return &ksyms->syms[start - 1];
+
+	/* out of range. return _stext */
+	return &ksyms->syms[0];
+}
+
+struct ksym *search_kallsyms_custom_local(struct ksyms *ksyms, const void *p,
+					  ksym_search_cmp_t cmp_cb)
+{
+	int start = 0, mid, end = ksyms->sym_cnt;
+	struct ksym *ks;
+	int result;
+
+	while (start < end) {
+		mid = start + (end - start) / 2;
+		ks = &ksyms->syms[mid];
+		result = cmp_cb(p, ks);
+		if (result < 0)
+			end = mid;
+		else if (result > 0)
+			start = mid + 1;
+		else
+			return ks;
+	}
+
+	return NULL;
+}
+
+struct ksym *ksym_search(long key)
+{
+	if (!ksyms)
+		return NULL;
+	return ksym_search_local(ksyms, key);
+}
+
+long ksym_get_addr_local(struct ksyms *ksyms, const char *name)
+{
+	int i;
+
+	for (i = 0; i < ksyms->sym_cnt; i++) {
+		if (strcmp(ksyms->syms[i].name, name) == 0)
+			return ksyms->syms[i].addr;
+	}
+
+	return 0;
+}
+
+long ksym_get_addr(const char *name)
+{
+	if (!ksyms)
+		return 0;
+	return ksym_get_addr_local(ksyms, name);
+}
+
+/* open kallsyms and read symbol addresses on the fly. Without caching all symbols,
+ * this is faster than load + find.
+ */
+int kallsyms_find(const char *sym, unsigned long long *addr)
+{
+	char type, name[500], *match;
+	unsigned long long value;
+	int err = 0;
+	FILE *f;
+
+	f = fopen("/proc/kallsyms", "r");
+	if (!f)
+		return -EINVAL;
+
+	while (fscanf(f, "%llx %c %499s%*[^\n]\n", &value, &type, name) > 0) {
+		/* If CONFIG_LTO_CLANG_THIN is enabled, static variable/function
+		 * symbols could be promoted to global due to cross-file inlining.
+		 * For such cases, clang compiler will add .llvm.<hash> suffix
+		 * to those symbols to avoid potential naming conflict.
+		 * Let us ignore .llvm.<hash> suffix during symbol comparison.
+		 */
+		if (type == 'd') {
+			match = strstr(name, ".llvm.");
+			if (match)
+				*match = '\0';
+		}
+		if (strcmp(name, sym) == 0) {
+			*addr = value;
+			goto out;
+		}
+	}
+	err = -ENOENT;
+
+out:
+	fclose(f);
+	return err;
+}
+
+#ifdef PROCMAP_QUERY
+int env_verbosity __weak = 0;
+
+static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags)
+{
+	char path_buf[PATH_MAX], build_id_buf[20];
+	struct procmap_query q;
+	int err;
+
+	memset(&q, 0, sizeof(q));
+	q.size = sizeof(q);
+	q.query_flags = query_flags;
+	q.query_addr = (__u64)addr;
+	q.vma_name_addr = (__u64)path_buf;
+	q.vma_name_size = sizeof(path_buf);
+	q.build_id_addr = (__u64)build_id_buf;
+	q.build_id_size = sizeof(build_id_buf);
+
+	err = ioctl(fd, PROCMAP_QUERY, &q);
+	if (err < 0) {
+		err = -errno;
+		if (err == -ENOTTY)
+			return -EOPNOTSUPP; /* ioctl() not implemented yet */
+		if (err == -ENOENT)
+			return -ESRCH; /* vma not found */
+		return err;
+	}
+
+	if (env_verbosity >= 1) {
+		printf("VMA FOUND (addr %08lx): %08lx-%08lx %c%c%c%c %08lx %02x:%02x %ld %s (build ID: %s, %d bytes)\n",
+		       (long)addr, (long)q.vma_start, (long)q.vma_end,
+		       (q.vma_flags & PROCMAP_QUERY_VMA_READABLE) ? 'r' : '-',
+		       (q.vma_flags & PROCMAP_QUERY_VMA_WRITABLE) ? 'w' : '-',
+		       (q.vma_flags & PROCMAP_QUERY_VMA_EXECUTABLE) ? 'x' : '-',
+		       (q.vma_flags & PROCMAP_QUERY_VMA_SHARED) ? 's' : 'p',
+		       (long)q.vma_offset, q.dev_major, q.dev_minor, (long)q.inode,
+		       q.vma_name_size ? path_buf : "",
+		       q.build_id_size ? "YES" : "NO",
+		       q.build_id_size);
+	}
+
+	*start = q.vma_start;
+	*offset = q.vma_offset;
+	*flags = q.vma_flags;
+	return 0;
+}
+#else
+# ifndef PROCMAP_QUERY_VMA_EXECUTABLE
+#  define PROCMAP_QUERY_VMA_EXECUTABLE 0x04
+# endif
+
+static int procmap_query(int fd, const void *addr, __u32 query_flags, size_t *start, size_t *offset, int *flags)
+{
+	return -EOPNOTSUPP;
+}
+#endif
+
+ssize_t get_uprobe_offset(const void *addr)
+{
+	size_t start, base, end;
+	FILE *f;
+	char buf[256];
+	int err, flags;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!f)
+		return -errno;
+
+	/* requested executable VMA only */
+	err = procmap_query(fileno(f), addr, PROCMAP_QUERY_VMA_EXECUTABLE, &start, &base, &flags);
+	if (err == -EOPNOTSUPP) {
+		bool found = false;
+
+		while (fscanf(f, "%zx-%zx %s %zx %*[^\n]\n", &start, &end, buf, &base) == 4) {
+			if (buf[2] == 'x' && (uintptr_t)addr >= start && (uintptr_t)addr < end) {
+				found = true;
+				break;
+			}
+		}
+		if (!found) {
+			fclose(f);
+			return -ESRCH;
+		}
+	} else if (err) {
+		fclose(f);
+		return err;
+	}
+	fclose(f);
+
+#if defined(__powerpc64__) && defined(_CALL_ELF) && _CALL_ELF == 2
+
+#define OP_RT_RA_MASK   0xffff0000UL
+#define LIS_R2          0x3c400000UL
+#define ADDIS_R2_R12    0x3c4c0000UL
+#define ADDI_R2_R2      0x38420000UL
+
+	/*
+	 * A PPC64 ABIv2 function may have a local and a global entry
+	 * point. We need to use the local entry point when patching
+	 * functions, so identify and step over the global entry point
+	 * sequence.
+	 *
+	 * The global entry point sequence is always of the form:
+	 *
+	 * addis r2,r12,XXXX
+	 * addi  r2,r2,XXXX
+	 *
+	 * A linker optimisation may convert the addis to lis:
+	 *
+	 * lis   r2,XXXX
+	 * addi  r2,r2,XXXX
+	 */
+	{
+		const __u32 *insn = (const __u32 *)(uintptr_t)addr;
+
+		if ((((*insn & OP_RT_RA_MASK) == ADDIS_R2_R12) ||
+		     ((*insn & OP_RT_RA_MASK) == LIS_R2)) &&
+		    ((*(insn + 1) & OP_RT_RA_MASK) == ADDI_R2_R2))
+			return (uintptr_t)(insn + 2) - start + base;
+	}
+#endif
+	return (uintptr_t)addr - start + base;
+}
+
+ssize_t get_rel_offset(uintptr_t addr)
+{
+	size_t start, end, offset;
+	char buf[256];
+	FILE *f;
+	int err, flags;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!f)
+		return -errno;
+
+	err = procmap_query(fileno(f), (const void *)addr, 0, &start, &offset, &flags);
+	if (err == 0) {
+		fclose(f);
+		return (size_t)addr - start + offset;
+	} else if (err != -EOPNOTSUPP) {
+		fclose(f);
+		return err;
+	} else if (err) {
+		while (fscanf(f, "%zx-%zx %s %zx %*[^\n]\n", &start, &end, buf, &offset) == 4) {
+			if (addr >= start && addr < end) {
+				fclose(f);
+				return (size_t)addr - start + offset;
+			}
+		}
+	}
+
+	fclose(f);
+	return -EINVAL;
+}
+
+static int
+parse_build_id_buf(const void *note_start, Elf32_Word note_size, char *build_id)
+{
+	Elf32_Word note_offs = 0;
+
+	while (note_offs + sizeof(Elf32_Nhdr) < note_size) {
+		Elf32_Nhdr *nhdr = (Elf32_Nhdr *)(note_start + note_offs);
+
+		if (nhdr->n_type == 3 && nhdr->n_namesz == sizeof("GNU") &&
+		    !strcmp((char *)(nhdr + 1), "GNU") && nhdr->n_descsz > 0 &&
+		    nhdr->n_descsz <= BPF_BUILD_ID_SIZE) {
+			memcpy(build_id, note_start + note_offs +
+			       ALIGN(sizeof("GNU"), 4) + sizeof(Elf32_Nhdr), nhdr->n_descsz);
+			memset(build_id + nhdr->n_descsz, 0, BPF_BUILD_ID_SIZE - nhdr->n_descsz);
+			return (int) nhdr->n_descsz;
+		}
+
+		note_offs = note_offs + sizeof(Elf32_Nhdr) +
+			   ALIGN(nhdr->n_namesz, 4) + ALIGN(nhdr->n_descsz, 4);
+	}
+
+	return -ENOENT;
+}
+
+/* Reads binary from *path* file and returns it in the *build_id* buffer
+ * with *size* which is expected to be at least BPF_BUILD_ID_SIZE bytes.
+ * Returns size of build id on success. On error the error value is
+ * returned.
+ */
+int read_build_id(const char *path, char *build_id, size_t size)
+{
+	int fd, err = -EINVAL;
+	Elf *elf = NULL;
+	GElf_Ehdr ehdr;
+	size_t max, i;
+
+	if (size < BPF_BUILD_ID_SIZE)
+		return -EINVAL;
+
+	fd = open(path, O_RDONLY | O_CLOEXEC);
+	if (fd < 0)
+		return -errno;
+
+	(void)elf_version(EV_CURRENT);
+
+	elf = elf_begin(fd, ELF_C_READ_MMAP, NULL);
+	if (!elf)
+		goto out;
+	if (elf_kind(elf) != ELF_K_ELF)
+		goto out;
+	if (!gelf_getehdr(elf, &ehdr))
+		goto out;
+
+	for (i = 0; i < ehdr.e_phnum; i++) {
+		GElf_Phdr mem, *phdr;
+		char *data;
+
+		phdr = gelf_getphdr(elf, i, &mem);
+		if (!phdr)
+			goto out;
+		if (phdr->p_type != PT_NOTE)
+			continue;
+		data = elf_rawfile(elf, &max);
+		if (!data)
+			goto out;
+		if (phdr->p_offset + phdr->p_memsz > max)
+			goto out;
+		err = parse_build_id_buf(data + phdr->p_offset, phdr->p_memsz, build_id);
+		if (err > 0)
+			break;
+	}
+
+out:
+	if (elf)
+		elf_end(elf);
+	close(fd);
+	return err;
+}
+
+int read_trace_pipe_iter(void (*cb)(const char *str, void *data), void *data, int iter)
+{
+	size_t buflen, n;
+	char *buf = NULL;
+	FILE *fp = NULL;
+
+	if (access(TRACEFS_PIPE, F_OK) == 0)
+		fp = fopen(TRACEFS_PIPE, "r");
+	else
+		fp = fopen(DEBUGFS_PIPE, "r");
+	if (!fp)
+		return -1;
+
+	 /* We do not want to wait forever when iter is specified. */
+	if (iter)
+		fcntl(fileno(fp), F_SETFL, O_NONBLOCK);
+
+	while ((n = getline(&buf, &buflen, fp) >= 0) || errno == EAGAIN) {
+		if (n > 0)
+			cb(buf, data);
+		if (iter && !(--iter))
+			break;
+	}
+
+	free(buf);
+	if (fp)
+		fclose(fp);
+	return 0;
+}
+
+static void trace_pipe_cb(const char *str, void *data)
+{
+	printf("%s", str);
+}
+
+void read_trace_pipe(void)
+{
+	read_trace_pipe_iter(trace_pipe_cb, NULL, 0);
+}
+
+static size_t symbol_hash(long key, void *ctx __maybe_unused)
+{
+	return str_hash((const char *) key);
+}
+
+static bool symbol_equal(long key1, long key2, void *ctx __maybe_unused)
+{
+	return strcmp((const char *) key1, (const char *) key2) == 0;
+}
+
+static bool is_invalid_entry(char *buf, bool kernel)
+{
+	if (kernel && strchr(buf, '['))
+		return true;
+	if (!kernel && !strchr(buf, '['))
+		return true;
+	return false;
+}
+
+static const char * const trace_blacklist[] = {
+	"migrate_disable",
+	"migrate_enable",
+	"rcu_read_unlock_strict",
+	"preempt_count_add",
+	"preempt_count_sub",
+	"__rcu_read_lock",
+	"__rcu_read_unlock",
+	"bpf_get_numa_node_id",
+};
+
+static bool skip_entry(char *name)
+{
+	int i;
+
+	/*
+	 * We attach to almost all kernel functions and some of them
+	 * will cause 'suspicious RCU usage' when fprobe is attached
+	 * to them. Filter out the current culprits - arch_cpu_idle
+	 * default_idle and rcu_* functions.
+	 */
+	if (!strcmp(name, "arch_cpu_idle"))
+		return true;
+	if (!strcmp(name, "default_idle"))
+		return true;
+	if (!strncmp(name, "rcu_", 4))
+		return true;
+	if (!strcmp(name, "bpf_dispatcher_xdp_func"))
+		return true;
+	if (!strncmp(name, "__ftrace_invalid_address__",
+		     sizeof("__ftrace_invalid_address__") - 1))
+		return true;
+
+	for (i = 0; i < ARRAY_SIZE(trace_blacklist); i++) {
+		if (!strcmp(name, trace_blacklist[i]))
+			return true;
+	}
+
+	return false;
+}
+
+/* Do comparison by ignoring '.llvm.<hash>' suffixes. */
+static int compare_name(const char *name1, const char *name2)
+{
+	const char *res1, *res2;
+	int len1, len2;
+
+	res1 = strstr(name1, ".llvm.");
+	res2 = strstr(name2, ".llvm.");
+	len1 = res1 ? res1 - name1 : strlen(name1);
+	len2 = res2 ? res2 - name2 : strlen(name2);
+
+	if (len1 == len2)
+		return strncmp(name1, name2, len1);
+	if (len1 < len2)
+		return strncmp(name1, name2, len1) <= 0 ? -1 : 1;
+	return strncmp(name1, name2, len2) >= 0 ? 1 : -1;
+}
+
+static int load_kallsyms_compare(const void *p1, const void *p2)
+{
+	return compare_name(((const struct ksym *)p1)->name, ((const struct ksym *)p2)->name);
+}
+
+static int search_kallsyms_compare(const void *p1, const struct ksym *p2)
+{
+	return compare_name(p1, p2->name);
+}
+
+int bpf_get_ksyms(char ***symsp, size_t *cntp, bool kernel)
+{
+	size_t cap = 0, cnt = 0;
+	char *name = NULL, *ksym_name, **syms = NULL;
+	struct hashmap *map;
+	struct ksyms *ksyms;
+	struct ksym *ks;
+	char buf[256];
+	FILE *f;
+	int err = 0;
+
+	ksyms = load_kallsyms_custom_local(load_kallsyms_compare);
+	if (!ksyms)
+		return -EINVAL;
+
+	/*
+	 * The available_filter_functions contains many duplicates,
+	 * but other than that all symbols are usable to trace.
+	 * Filtering out duplicates by using hashmap__add, which won't
+	 * add existing entry.
+	 */
+
+	if (access("/sys/kernel/tracing/trace", F_OK) == 0)
+		f = fopen("/sys/kernel/tracing/available_filter_functions", "r");
+	else
+		f = fopen("/sys/kernel/debug/tracing/available_filter_functions", "r");
+
+	if (!f)
+		return -EINVAL;
+
+	map = hashmap__new(symbol_hash, symbol_equal, NULL);
+	if (IS_ERR(map)) {
+		err = libbpf_get_error(map);
+		goto error;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		if (is_invalid_entry(buf, kernel))
+			continue;
+
+		free(name);
+		if (sscanf(buf, "%ms$*[^\n]\n", &name) != 1)
+			continue;
+		if (skip_entry(name))
+			continue;
+
+		ks = search_kallsyms_custom_local(ksyms, name, search_kallsyms_compare);
+		if (!ks) {
+			err = -EINVAL;
+			goto error;
+		}
+
+		ksym_name = ks->name;
+		err = hashmap__add(map, ksym_name, 0);
+		if (err == -EEXIST) {
+			err = 0;
+			continue;
+		}
+		if (err)
+			goto error;
+
+		err = libbpf_ensure_mem((void **) &syms, &cap,
+					sizeof(*syms), cnt + 1);
+		if (err)
+			goto error;
+
+		syms[cnt++] = ksym_name;
+	}
+
+	*symsp = syms;
+	*cntp = cnt;
+
+error:
+	free(name);
+	fclose(f);
+	hashmap__free(map);
+	if (err)
+		free(syms);
+	return err;
+}
+
+int bpf_get_addrs(unsigned long **addrsp, size_t *cntp, bool kernel)
+{
+	unsigned long *addr, *addrs, *tmp_addrs;
+	int err = 0, max_cnt, inc_cnt;
+	char *name = NULL;
+	size_t cnt = 0;
+	char buf[256];
+	FILE *f;
+
+	if (access("/sys/kernel/tracing/trace", F_OK) == 0)
+		f = fopen("/sys/kernel/tracing/available_filter_functions_addrs", "r");
+	else
+		f = fopen("/sys/kernel/debug/tracing/available_filter_functions_addrs", "r");
+
+	if (!f)
+		return -ENOENT;
+
+	/* In my local setup, the number of entries is 50k+ so Let us initially
+	 * allocate space to hold 64k entries. If 64k is not enough, incrementally
+	 * increase 1k each time.
+	 */
+	max_cnt = 65536;
+	inc_cnt = 1024;
+	addrs = malloc(max_cnt * sizeof(long));
+	if (addrs == NULL) {
+		err = -ENOMEM;
+		goto error;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		if (is_invalid_entry(buf, kernel))
+			continue;
+
+		free(name);
+		if (sscanf(buf, "%p %ms$*[^\n]\n", &addr, &name) != 2)
+			continue;
+		if (skip_entry(name))
+			continue;
+
+		if (cnt == max_cnt) {
+			max_cnt += inc_cnt;
+			tmp_addrs = realloc(addrs, max_cnt * sizeof(long));
+			if (!tmp_addrs) {
+				err = -ENOMEM;
+				goto error;
+			}
+			addrs = tmp_addrs;
+		}
+
+		addrs[cnt++] = (unsigned long)addr;
+	}
+
+	*addrsp = addrs;
+	*cntp = cnt;
+
+error:
+	free(name);
+	fclose(f);
+	if (err)
+		free(addrs);
+	return err;
+}
diff --git a/tools/testing/selftests/bpf/trace_helpers.h b/tools/testing/selftests/bpf/trace_helpers.h
new file mode 100644
index 000000000000..9437bdd4afa5
--- /dev/null
+++ b/tools/testing/selftests/bpf/trace_helpers.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __TRACE_HELPER_H
+#define __TRACE_HELPER_H
+
+#include <bpf/libbpf.h>
+
+#define __ALIGN_MASK(x, mask)	(((x)+(mask))&~(mask))
+#define ALIGN(x, a)		__ALIGN_MASK(x, (typeof(x))(a)-1)
+
+struct ksym {
+	long addr;
+	char *name;
+};
+struct ksyms;
+
+typedef int (*ksym_cmp_t)(const void *p1, const void *p2);
+typedef int (*ksym_search_cmp_t)(const void *p1, const struct ksym *p2);
+
+int load_kallsyms(void);
+struct ksym *ksym_search(long key);
+long ksym_get_addr(const char *name);
+
+struct ksyms *load_kallsyms_local(void);
+struct ksym *ksym_search_local(struct ksyms *ksyms, long key);
+long ksym_get_addr_local(struct ksyms *ksyms, const char *name);
+void free_kallsyms_local(struct ksyms *ksyms);
+
+struct ksyms *load_kallsyms_custom_local(ksym_cmp_t cmp_cb);
+struct ksym *search_kallsyms_custom_local(struct ksyms *ksyms, const void *p1,
+					  ksym_search_cmp_t cmp_cb);
+
+/* open kallsyms and find addresses on the fly, faster than load + search. */
+int kallsyms_find(const char *sym, unsigned long long *addr);
+
+void read_trace_pipe(void);
+int read_trace_pipe_iter(void (*cb)(const char *str, void *data),
+			 void *data, int iter);
+
+ssize_t get_uprobe_offset(const void *addr);
+ssize_t get_rel_offset(uintptr_t addr);
+
+int read_build_id(const char *path, char *build_id, size_t size);
+
+int bpf_get_ksyms(char ***symsp, size_t *cntp, bool kernel);
+int bpf_get_addrs(unsigned long **addrsp, size_t *cntp, bool kernel);
+
+#endif
diff --git a/tools/testing/selftests/bpf/unpriv_helpers.c b/tools/testing/selftests/bpf/unpriv_helpers.c
new file mode 100644
index 000000000000..f997d7ec8fd0
--- /dev/null
+++ b/tools/testing/selftests/bpf/unpriv_helpers.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/utsname.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <zlib.h>
+
+#include "unpriv_helpers.h"
+
+static gzFile open_config(void)
+{
+	struct utsname uts;
+	char buf[PATH_MAX];
+	gzFile config;
+
+	if (uname(&uts)) {
+		perror("uname");
+		goto config_gz;
+	}
+
+	snprintf(buf, sizeof(buf), "/boot/config-%s", uts.release);
+	config = gzopen(buf, "rb");
+	if (config)
+		return config;
+	fprintf(stderr, "gzopen %s: %s\n", buf, strerror(errno));
+
+config_gz:
+	config = gzopen("/proc/config.gz", "rb");
+	if (!config)
+		perror("gzopen /proc/config.gz");
+	return config;
+}
+
+static int config_contains(const char *pat)
+{
+	const char *msg;
+	char buf[1024];
+	gzFile config;
+	int n, err;
+
+	config = open_config();
+	if (!config)
+		return -1;
+
+	for (;;) {
+		if (!gzgets(config, buf, sizeof(buf))) {
+			msg = gzerror(config, &err);
+			if (err == Z_ERRNO)
+				perror("gzgets /proc/config.gz");
+			else if (err != Z_OK)
+				fprintf(stderr, "gzgets /proc/config.gz: %s", msg);
+			gzclose(config);
+			return -1;
+		}
+		n = strlen(buf);
+		if (buf[n - 1] == '\n')
+			buf[n - 1] = 0;
+		if (strcmp(buf, pat) == 0) {
+			gzclose(config);
+			return 1;
+		}
+	}
+	gzclose(config);
+	return 0;
+}
+
+static bool cmdline_contains(const char *pat)
+{
+	char cmdline[4096], *c;
+	int fd, ret = false;
+
+	fd = open("/proc/cmdline", O_RDONLY);
+	if (fd < 0) {
+		perror("open /proc/cmdline");
+		return false;
+	}
+
+	if (read(fd, cmdline, sizeof(cmdline) - 1) < 0) {
+		perror("read /proc/cmdline");
+		goto out;
+	}
+
+	cmdline[sizeof(cmdline) - 1] = '\0';
+	for (c = strtok(cmdline, " \n"); c; c = strtok(NULL, " \n")) {
+		if (strncmp(c, pat, strlen(c)))
+			continue;
+		ret = true;
+		break;
+	}
+out:
+	close(fd);
+	return ret;
+}
+
+static int get_mitigations_off(void)
+{
+	int enabled_in_config;
+
+	if (cmdline_contains("mitigations=off"))
+		return 1;
+	enabled_in_config = config_contains("CONFIG_CPU_MITIGATIONS=y");
+	if (enabled_in_config < 0)
+		return -1;
+	return !enabled_in_config;
+}
+
+bool get_unpriv_disabled(void)
+{
+	int mitigations_off;
+	bool disabled;
+	char buf[2];
+	FILE *fd;
+
+	fd = fopen("/proc/sys/" UNPRIV_SYSCTL, "r");
+	if (fd) {
+		disabled = (fgets(buf, 2, fd) == buf && atoi(buf));
+		fclose(fd);
+	} else {
+		perror("fopen /proc/sys/" UNPRIV_SYSCTL);
+		disabled = true;
+	}
+
+	if (disabled)
+		return true;
+
+	/*
+	 * Some unpriv tests rely on spectre mitigations being on.
+	 * If mitigations are off or status can't be determined
+	 * assume that unpriv tests are disabled.
+	 */
+	mitigations_off = get_mitigations_off();
+	if (mitigations_off < 0) {
+		fprintf(stderr,
+			"Can't determine if mitigations are enabled, disabling unpriv tests.");
+		return true;
+	}
+	return mitigations_off;
+}
diff --git a/tools/testing/selftests/bpf/unpriv_helpers.h b/tools/testing/selftests/bpf/unpriv_helpers.h
new file mode 100644
index 000000000000..151f67329665
--- /dev/null
+++ b/tools/testing/selftests/bpf/unpriv_helpers.h
@@ -0,0 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <stdbool.h>
+
+#define UNPRIV_SYSCTL "kernel/unprivileged_bpf_disabled"
+
+bool get_unpriv_disabled(void);
diff --git a/tools/testing/selftests/bpf/uprobe_multi.c b/tools/testing/selftests/bpf/uprobe_multi.c
new file mode 100644
index 000000000000..dd38dc68f635
--- /dev/null
+++ b/tools/testing/selftests/bpf/uprobe_multi.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <sdt.h>
+
+#ifndef MADV_POPULATE_READ
+#define MADV_POPULATE_READ 22
+#endif
+
+#ifndef MADV_PAGEOUT
+#define MADV_PAGEOUT 21
+#endif
+
+int __attribute__((weak)) uprobe(void)
+{
+	return 0;
+}
+
+#define __PASTE(a, b) a##b
+#define PASTE(a, b) __PASTE(a, b)
+
+#define NAME(name, idx) PASTE(name, idx)
+
+#define DEF(name, idx) int __attribute__((weak)) NAME(name, idx)(void) { return 0; }
+#define CALL(name, idx) NAME(name, idx)();
+
+#define F(body, name, idx) body(name, idx)
+
+#define F10(body, name, idx) \
+	F(body, PASTE(name, idx), 0) F(body, PASTE(name, idx), 1) F(body, PASTE(name, idx), 2) \
+	F(body, PASTE(name, idx), 3) F(body, PASTE(name, idx), 4) F(body, PASTE(name, idx), 5) \
+	F(body, PASTE(name, idx), 6) F(body, PASTE(name, idx), 7) F(body, PASTE(name, idx), 8) \
+	F(body, PASTE(name, idx), 9)
+
+#define F100(body, name, idx) \
+	F10(body, PASTE(name, idx), 0) F10(body, PASTE(name, idx), 1) F10(body, PASTE(name, idx), 2) \
+	F10(body, PASTE(name, idx), 3) F10(body, PASTE(name, idx), 4) F10(body, PASTE(name, idx), 5) \
+	F10(body, PASTE(name, idx), 6) F10(body, PASTE(name, idx), 7) F10(body, PASTE(name, idx), 8) \
+	F10(body, PASTE(name, idx), 9)
+
+#define F1000(body, name, idx) \
+	F100(body, PASTE(name, idx), 0) F100(body, PASTE(name, idx), 1) F100(body, PASTE(name, idx), 2) \
+	F100(body, PASTE(name, idx), 3) F100(body, PASTE(name, idx), 4) F100(body, PASTE(name, idx), 5) \
+	F100(body, PASTE(name, idx), 6) F100(body, PASTE(name, idx), 7) F100(body, PASTE(name, idx), 8) \
+	F100(body, PASTE(name, idx), 9)
+
+#define F10000(body, name, idx) \
+	F1000(body, PASTE(name, idx), 0) F1000(body, PASTE(name, idx), 1) F1000(body, PASTE(name, idx), 2) \
+	F1000(body, PASTE(name, idx), 3) F1000(body, PASTE(name, idx), 4) F1000(body, PASTE(name, idx), 5) \
+	F1000(body, PASTE(name, idx), 6) F1000(body, PASTE(name, idx), 7) F1000(body, PASTE(name, idx), 8) \
+	F1000(body, PASTE(name, idx), 9)
+
+F10000(DEF, uprobe_multi_func_, 0)
+F10000(DEF, uprobe_multi_func_, 1)
+F10000(DEF, uprobe_multi_func_, 2)
+F10000(DEF, uprobe_multi_func_, 3)
+F10000(DEF, uprobe_multi_func_, 4)
+
+static int bench(void)
+{
+	F10000(CALL, uprobe_multi_func_, 0)
+	F10000(CALL, uprobe_multi_func_, 1)
+	F10000(CALL, uprobe_multi_func_, 2)
+	F10000(CALL, uprobe_multi_func_, 3)
+	F10000(CALL, uprobe_multi_func_, 4)
+	return 0;
+}
+
+#define PROBE STAP_PROBE(test, usdt);
+
+#define PROBE10    PROBE PROBE PROBE PROBE PROBE \
+		   PROBE PROBE PROBE PROBE PROBE
+#define PROBE100   PROBE10 PROBE10 PROBE10 PROBE10 PROBE10 \
+		   PROBE10 PROBE10 PROBE10 PROBE10 PROBE10
+#define PROBE1000  PROBE100 PROBE100 PROBE100 PROBE100 PROBE100 \
+		   PROBE100 PROBE100 PROBE100 PROBE100 PROBE100
+#define PROBE10000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000 \
+		   PROBE1000 PROBE1000 PROBE1000 PROBE1000 PROBE1000
+
+static int usdt(void)
+{
+	PROBE10000
+	PROBE10000
+	PROBE10000
+	PROBE10000
+	PROBE10000
+	return 0;
+}
+
+extern char build_id_start[];
+extern char build_id_end[];
+
+int __attribute__((weak)) trigger_uprobe(bool build_id_resident)
+{
+	int page_sz = sysconf(_SC_PAGESIZE);
+	void *addr;
+
+	/* page-align build ID start */
+	addr = (void *)((uintptr_t)&build_id_start & ~(page_sz - 1));
+
+	/* to guarantee MADV_PAGEOUT work reliably, we need to ensure that
+	 * memory range is mapped into current process, so we unconditionally
+	 * do MADV_POPULATE_READ, and then MADV_PAGEOUT, if necessary
+	 */
+	madvise(addr, page_sz, MADV_POPULATE_READ);
+	if (!build_id_resident)
+		madvise(addr, page_sz, MADV_PAGEOUT);
+
+	(void)uprobe();
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	if (argc != 2)
+		goto error;
+
+	if (!strcmp("bench", argv[1]))
+		return bench();
+	if (!strcmp("usdt", argv[1]))
+		return usdt();
+	if (!strcmp("uprobe-paged-out", argv[1]))
+		return trigger_uprobe(false /* page-out build ID */);
+	if (!strcmp("uprobe-paged-in", argv[1]))
+		return trigger_uprobe(true /* page-in build ID */);
+
+error:
+	fprintf(stderr, "usage: %s <bench|usdt>\n", argv[0]);
+	return -1;
+}
diff --git a/tools/testing/selftests/bpf/uprobe_multi.ld b/tools/testing/selftests/bpf/uprobe_multi.ld
new file mode 100644
index 000000000000..a2e94828bc8c
--- /dev/null
+++ b/tools/testing/selftests/bpf/uprobe_multi.ld
@@ -0,0 +1,11 @@
+SECTIONS
+{
+	. = ALIGN(4096);
+	.note.gnu.build-id : { *(.note.gnu.build-id) }
+	. = ALIGN(4096);
+}
+INSERT AFTER .text;
+
+build_id_start = ADDR(.note.gnu.build-id);
+build_id_end = ADDR(.note.gnu.build-id) + SIZEOF(.note.gnu.build-id);
+
diff --git a/tools/testing/selftests/bpf/uptr_test_common.h b/tools/testing/selftests/bpf/uptr_test_common.h
new file mode 100644
index 000000000000..f8a134ba12f9
--- /dev/null
+++ b/tools/testing/selftests/bpf/uptr_test_common.h
@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#ifndef _UPTR_TEST_COMMON_H
+#define _UPTR_TEST_COMMON_H
+
+#define MAGIC_VALUE 0xabcd1234
+#define PAGE_SIZE 4096
+
+#ifdef __BPF__
+/* Avoid fwd btf type being generated for the following struct */
+struct large_data *dummy_large_data;
+struct empty_data *dummy_empty_data;
+struct user_data *dummy_data;
+struct cgroup *dummy_cgrp;
+#else
+#define __uptr
+#define __kptr
+#endif
+
+struct user_data {
+	int a;
+	int b;
+	int result;
+	int nested_result;
+};
+
+struct nested_udata {
+	struct user_data __uptr *udata;
+};
+
+struct value_type {
+	struct user_data __uptr *udata;
+	struct cgroup __kptr *cgrp;
+	struct nested_udata nested;
+};
+
+struct value_lock_type {
+	struct user_data __uptr *udata;
+	struct bpf_spin_lock lock;
+};
+
+struct large_data {
+	__u8 one_page[PAGE_SIZE];
+	int a;
+};
+
+struct large_uptr {
+	struct large_data __uptr *udata;
+};
+
+struct empty_data {
+};
+
+struct empty_uptr {
+	struct empty_data __uptr *udata;
+};
+
+struct kstruct_uptr {
+	struct cgroup __uptr *cgrp;
+};
+
+#endif
diff --git a/tools/testing/selftests/bpf/urandom_read.c b/tools/testing/selftests/bpf/urandom_read.c
new file mode 100644
index 000000000000..4ed795655b9f
--- /dev/null
+++ b/tools/testing/selftests/bpf/urandom_read.c
@@ -0,0 +1,99 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <signal.h>
+
+#define _SDT_HAS_SEMAPHORES 1
+#include "sdt.h"
+
+#define SHARED 1
+#include "bpf/libbpf_internal.h"
+
+#define SEC(name) __attribute__((section(name), used))
+
+#define BUF_SIZE 256
+
+/* defined in urandom_read_aux.c */
+void urand_read_without_sema(int iter_num, int iter_cnt, int read_sz);
+/* these are coming from urandom_read_lib{1,2}.c */
+void urandlib_read_with_sema(int iter_num, int iter_cnt, int read_sz);
+void urandlib_read_without_sema(int iter_num, int iter_cnt, int read_sz);
+
+int urandlib_api(void);
+COMPAT_VERSION(urandlib_api_old, urandlib_api, LIBURANDOM_READ_1.0.0)
+int urandlib_api_old(void);
+int urandlib_api_sameoffset(void);
+
+unsigned short urand_read_with_sema_semaphore SEC(".probes");
+
+static noinline void urandom_read(int fd, int count)
+{
+	char buf[BUF_SIZE];
+	int i;
+
+	for (i = 0; i < count; ++i) {
+		read(fd, buf, BUF_SIZE);
+
+		/* trigger USDTs defined in executable itself */
+		urand_read_without_sema(i, count, BUF_SIZE);
+		STAP_PROBE3(urand, read_with_sema, i, count, BUF_SIZE);
+
+		/* trigger USDTs defined in shared lib */
+		urandlib_read_without_sema(i, count, BUF_SIZE);
+		urandlib_read_with_sema(i, count, BUF_SIZE);
+	}
+}
+
+static volatile bool parent_ready;
+
+static void handle_sigpipe(int sig)
+{
+	parent_ready = true;
+}
+
+int main(int argc, char *argv[])
+{
+	int fd = open("/dev/urandom", O_RDONLY);
+	int count = 4;
+	bool report_pid = false;
+
+	if (fd < 0)
+		return 1;
+
+	if (argc >= 2)
+		count = atoi(argv[1]);
+	if (argc >= 3) {
+		report_pid = true;
+		/* install SIGPIPE handler to catch when parent closes their
+		 * end of the pipe (on the other side of our stdout)
+		 */
+		signal(SIGPIPE, handle_sigpipe);
+	}
+
+	/* report PID and wait for parent process to send us "signal" by
+	 * closing stdout
+	 */
+	if (report_pid) {
+		while (!parent_ready) {
+			fprintf(stdout, "%d\n", getpid());
+			fflush(stdout);
+		}
+		/* at this point stdout is closed, parent process knows our
+		 * PID and is ready to trace us
+		 */
+	}
+
+	urandom_read(fd, count);
+
+	urandlib_api();
+	urandlib_api_old();
+	urandlib_api_sameoffset();
+
+	close(fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/urandom_read_aux.c b/tools/testing/selftests/bpf/urandom_read_aux.c
new file mode 100644
index 000000000000..6132edcfea74
--- /dev/null
+++ b/tools/testing/selftests/bpf/urandom_read_aux.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include "sdt.h"
+
+void urand_read_without_sema(int iter_num, int iter_cnt, int read_sz)
+{
+	/* semaphore-less USDT */
+	STAP_PROBE3(urand, read_without_sema, iter_num, iter_cnt, read_sz);
+}
diff --git a/tools/testing/selftests/bpf/urandom_read_lib1.c b/tools/testing/selftests/bpf/urandom_read_lib1.c
new file mode 100644
index 000000000000..8c1356d8b4ee
--- /dev/null
+++ b/tools/testing/selftests/bpf/urandom_read_lib1.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#define _SDT_HAS_SEMAPHORES 1
+#include "sdt.h"
+
+#define SHARED 1
+#include "bpf/libbpf_internal.h"
+
+#define SEC(name) __attribute__((section(name), used))
+
+unsigned short urandlib_read_with_sema_semaphore SEC(".probes");
+
+void urandlib_read_with_sema(int iter_num, int iter_cnt, int read_sz)
+{
+	STAP_PROBE3(urandlib, read_with_sema, iter_num, iter_cnt, read_sz);
+}
+
+COMPAT_VERSION(urandlib_api_v1, urandlib_api, LIBURANDOM_READ_1.0.0)
+int urandlib_api_v1(void)
+{
+	return 1;
+}
+
+DEFAULT_VERSION(urandlib_api_v2, urandlib_api, LIBURANDOM_READ_2.0.0)
+int urandlib_api_v2(void)
+{
+	return 2;
+}
+
+COMPAT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_1.0.0)
+DEFAULT_VERSION(urandlib_api_sameoffset, urandlib_api_sameoffset, LIBURANDOM_READ_2.0.0)
+int urandlib_api_sameoffset(void)
+{
+	return 3;
+}
diff --git a/tools/testing/selftests/bpf/urandom_read_lib2.c b/tools/testing/selftests/bpf/urandom_read_lib2.c
new file mode 100644
index 000000000000..9d401ad9838f
--- /dev/null
+++ b/tools/testing/selftests/bpf/urandom_read_lib2.c
@@ -0,0 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#include "sdt.h"
+
+void urandlib_read_without_sema(int iter_num, int iter_cnt, int read_sz)
+{
+	STAP_PROBE3(urandlib, read_without_sema, iter_num, iter_cnt, read_sz);
+}
diff --git a/tools/testing/selftests/bpf/usdt.h b/tools/testing/selftests/bpf/usdt.h
new file mode 100644
index 000000000000..549d1f774810
--- /dev/null
+++ b/tools/testing/selftests/bpf/usdt.h
@@ -0,0 +1,545 @@
+// SPDX-License-Identifier: BSD-2-Clause
+/*
+ *  This single-header library defines a collection of variadic macros for
+ *  defining and triggering USDTs (User Statically-Defined Tracepoints):
+ *
+ *      - For USDTs without associated semaphore:
+ *          USDT(group, name, args...)
+ *
+ *      - For USDTs with implicit (transparent to the user) semaphore:
+ *          USDT_WITH_SEMA(group, name, args...)
+ *          USDT_IS_ACTIVE(group, name)
+ *
+ *      - For USDTs with explicit (user-defined and provided) semaphore:
+ *          USDT_WITH_EXPLICIT_SEMA(sema, group, name, args...)
+ *          USDT_SEMA_IS_ACTIVE(sema)
+ *
+ *  all of which emit a NOP instruction into the instruction stream, and so
+ *  have *zero* overhead for the surrounding code. USDTs are identified by
+ *  a combination of `group` and `name` identifiers, which is used by external
+ *  tracing tooling (tracers) for identifying exact USDTs of interest.
+ *
+ *  USDTs can have an associated (2-byte) activity counter (USDT semaphore),
+ *  automatically maintained by Linux kernel whenever any correctly written
+ *  BPF-based tracer is attached to the USDT. This USDT semaphore can be used
+ *  to check whether there is a need to do any extra data collection and
+ *  processing for a given USDT (if necessary), and otherwise avoid extra work
+ *  for a common case of USDT not being traced ("active").
+ *
+ *  See documentation for USDT_WITH_SEMA()/USDT_IS_ACTIVE() or
+ *  USDT_WITH_EXPLICIT_SEMA()/USDT_SEMA_IS_ACTIVE() APIs below for details on
+ *  working with USDTs with implicitly or explicitly associated
+ *  USDT semaphores, respectively.
+ *
+ *  There is also some additional data recorded into an auxiliary note
+ *  section. The data in the note section describes the operands, in terms of
+ *  size and location, used by tracing tooling to know where to find USDT
+ *  arguments. Each location is encoded as an assembler operand string.
+ *  Tracing tools (bpftrace and BPF-based tracers, systemtap, etc) insert
+ *  breakpoints on top of the nop, and decode the location operand-strings,
+ *  like an assembler, to find the values being passed.
+ *
+ *  The operand strings are selected by the compiler for each operand.
+ *  They are constrained by inline-assembler codes.The default is:
+ *
+ *  #define USDT_ARG_CONSTRAINT nor
+ *
+ *  This is a good default if the operands tend to be integral and
+ *  moderate in number (smaller than number of registers). In other
+ *  cases, the compiler may report "'asm' requires impossible reload" or
+ *  similar. In this case, consider simplifying the macro call (fewer
+ *  and simpler operands), reduce optimization, or override the default
+ *  constraints string via:
+ *
+ *  #define USDT_ARG_CONSTRAINT g
+ *  #include <usdt.h>
+ *
+ * For some historical description of USDT v3 format (the one used by this
+ * library and generally recognized and assumed by BPF-based tracing tools)
+ * see [0]. The more formal specification can be found at [1]. Additional
+ * argument constraints information can be found at [2].
+ *
+ * Original SystemTap's sys/sdt.h implementation ([3]) was used as a base for
+ * this USDT library implementation. Current implementation differs *a lot* in
+ * terms of exposed user API and general usability, which was the main goal
+ * and focus of the reimplementation work. Nevertheless, underlying recorded
+ * USDT definitions are fully binary compatible and any USDT-based tooling
+ * should work equally well with USDTs defined by either SystemTap's or this
+ * library's USDT implementation.
+ *
+ *   [0] https://ecos.sourceware.org/ml/systemtap/2010-q3/msg00145.html
+ *   [1] https://sourceware.org/systemtap/wiki/UserSpaceProbeImplementation
+ *   [2] https://gcc.gnu.org/onlinedocs/gcc/Constraints.html
+ *   [3] https://sourceware.org/git/?p=systemtap.git;a=blob;f=includes/sys/sdt.h
+ */
+#ifndef __USDT_H
+#define __USDT_H
+
+/*
+ * Changelog:
+ *
+ * 0.1.0
+ * -----
+ * - Initial release
+ */
+#define USDT_MAJOR_VERSION 0
+#define USDT_MINOR_VERSION 1
+#define USDT_PATCH_VERSION 0
+
+/* C++20 and C23 added __VA_OPT__ as a standard replacement for non-standard `##__VA_ARGS__` extension */
+#if (defined(__STDC_VERSION__) && __STDC_VERSION__ > 201710L) || (defined(__cplusplus) && __cplusplus > 201703L)
+#define __usdt_va_opt 1
+#define __usdt_va_args(...) __VA_OPT__(,) __VA_ARGS__
+#else
+#define __usdt_va_args(...) , ##__VA_ARGS__
+#endif
+
+/*
+ * Trigger USDT with `group`:`name` identifier and pass through `args` as its
+ * arguments. Zero arguments are acceptable as well. No USDT semaphore is
+ * associated with this USDT.
+ *
+ * Such "semaphoreless" USDTs are commonly used when there is no extra data
+ * collection or processing needed to collect and prepare USDT arguments and
+ * they are just available in the surrounding code. USDT() macro will just
+ * record their locations in CPU registers or in memory for tracing tooling to
+ * be able to access them, if necessary.
+ */
+#ifdef __usdt_va_opt
+#define USDT(group, name, ...)							\
+	__usdt_probe(group, name, __usdt_sema_none, 0 __VA_OPT__(,) __VA_ARGS__)
+#else
+#define USDT(group, name, ...)							\
+	__usdt_probe(group, name, __usdt_sema_none, 0, ##__VA_ARGS__)
+#endif
+
+/*
+ * Trigger USDT with `group`:`name` identifier and pass through `args` as its
+ * arguments. Zero arguments are acceptable as well. USDT also get an
+ * implicitly-defined associated USDT semaphore, which will be "activated" by
+ * tracing tooling and can be used to check whether USDT is being actively
+ * observed.
+ *
+ * USDTs with semaphore are commonly used when there is a need to perform
+ * additional data collection and processing to prepare USDT arguments, which
+ * otherwise might not be necessary for the rest of application logic. In such
+ * case, USDT semaphore can be used to avoid unnecessary extra work. If USDT
+ * is not traced (which is presumed to be a common situation), the associated
+ * USDT semaphore is "inactive", and so there is no need to waste resources to
+ * prepare USDT arguments. Use USDT_IS_ACTIVE(group, name) to check whether
+ * USDT is "active".
+ *
+ * N.B. There is an inherent (albeit short) gap between checking whether USDT
+ * is active and triggering corresponding USDT, in which external tracer can
+ * be attached to an USDT and activate USDT semaphore after the activity check.
+ * If such a race occurs, tracers might miss one USDT execution. Tracers are
+ * expected to accommodate such possibility and this is expected to not be
+ * a problem for applications and tracers.
+ *
+ * N.B. Implicit USDT semaphore defined by USDT_WITH_SEMA() is contained
+ * within a single executable or shared library and is not shared outside
+ * them. I.e., if you use USDT_WITH_SEMA() with the same USDT group and name
+ * identifier across executable and shared library, it will work and won't
+ * conflict, per se, but will define independent USDT semaphores, one for each
+ * shared library/executable in which USDT_WITH_SEMA(group, name) is used.
+ * That is, if you attach to this USDT in one shared library (or executable),
+ * then only USDT semaphore within that shared library (or executable) will be
+ * updated by the kernel, while other libraries (or executable) will not see
+ * activated USDT semaphore. In short, it's best to use unique USDT group:name
+ * identifiers across different shared libraries (and, equivalently, between
+ * executable and shared library). This is advanced consideration and is
+ * rarely (if ever) seen in practice, but just to avoid surprises this is
+ * called out here. (Static libraries become a part of final executable, once
+ * linked by linker, so the above considerations don't apply to them.)
+ */
+#ifdef __usdt_va_opt
+#define USDT_WITH_SEMA(group, name, ...)					\
+	__usdt_probe(group, name,						\
+		     __usdt_sema_implicit, __usdt_sema_name(group, name)	\
+		     __VA_OPT__(,) __VA_ARGS__)
+#else
+#define USDT_WITH_SEMA(group, name, ...)					\
+	__usdt_probe(group, name,						\
+		     __usdt_sema_implicit, __usdt_sema_name(group, name),	\
+		     ##__VA_ARGS__)
+#endif
+
+struct usdt_sema { volatile unsigned short active; };
+
+/*
+ * Check if USDT with `group`:`name` identifier is "active" (i.e., whether it
+ * is attached to by external tracing tooling and is actively observed).
+ *
+ * This macro can be used to decide whether any additional and potentially
+ * expensive data collection or processing should be done to pass extra
+ * information into the given USDT. It is assumed that USDT is triggered with
+ * USDT_WITH_SEMA() macro which will implicitly define associated USDT
+ * semaphore. (If one needs more control over USDT semaphore, see
+ * USDT_DEFINE_SEMA() and USDT_WITH_EXPLICIT_SEMA() macros below.)
+ *
+ * N.B. Such checks are necessarily racy and speculative. Between checking
+ * whether USDT is active and triggering the USDT itself, tracer can be
+ * detached with no notification. This race should be extremely rare and worst
+ * case should result in one-time wasted extra data collection and processing.
+ */
+#define USDT_IS_ACTIVE(group, name) ({						\
+	extern struct usdt_sema __usdt_sema_name(group, name)			\
+		__usdt_asm_name(__usdt_sema_name(group, name));			\
+	__usdt_sema_implicit(__usdt_sema_name(group, name));			\
+	__usdt_sema_name(group, name).active > 0;				\
+})
+
+/*
+ * APIs for working with user-defined explicit USDT semaphores.
+ *
+ * This is a less commonly used advanced API for use cases in which user needs
+ * an explicit control over (potentially shared across multiple USDTs) USDT
+ * semaphore instance. This can be used when there is a group of logically
+ * related USDTs that all need extra data collection and processing whenever
+ * any of a family of related USDTs are "activated" (i.e., traced). In such
+ * a case, all such related USDTs will be associated with the same shared USDT
+ * semaphore defined with USDT_DEFINE_SEMA() and the USDTs themselves will be
+ * triggered with USDT_WITH_EXPLICIT_SEMA() macros, taking an explicit extra
+ * USDT semaphore identifier as an extra parameter.
+ */
+
+/**
+ * Underlying C global variable name for user-defined USDT semaphore with
+ * `sema` identifier. Could be useful for debugging, but normally shouldn't be
+ * used explicitly.
+ */
+#define USDT_SEMA(sema) __usdt_sema_##sema
+
+/*
+ * Define storage for user-defined USDT semaphore `sema`.
+ *
+ * Should be used only once in non-header source file to let compiler allocate
+ * space for the semaphore variable. Just like with any other global variable.
+ *
+ * This macro can be used anywhere where global variable declaration is
+ * allowed. Just like with global variable definitions, there should be only
+ * one definition of user-defined USDT semaphore with given `sema` identifier,
+ * otherwise compiler or linker will complain about duplicate variable
+ * definition.
+ *
+ * For C++, it is allowed to use USDT_DEFINE_SEMA() both in global namespace
+ * and inside namespaces (including nested namespaces). Just make sure that
+ * USDT_DECLARE_SEMA() is placed within the namespace where this semaphore is
+ * referenced, or any of its parent namespaces, so the C++ language-level
+ * identifier is visible to the code that needs to reference the semaphore.
+ * At the lowest layer, USDT semaphores have global naming and visibility
+ * (they have a corresponding `__usdt_sema_<name>` symbol, which can be linked
+ * against from C or C++ code, if necessary). To keep it simple, putting
+ * USDT_DECLARE_SEMA() declarations into global namespaces is the simplest
+ * no-brainer solution. All these aspects are irrelevant for plain C, because
+ * C doesn't have namespaces and everything is always in the global namespace.
+ *
+ * N.B. Due to USDT metadata being recorded in non-allocatable ELF note
+ * section, it has limitations when it comes to relocations, which, in
+ * practice, means that it's not possible to correctly share USDT semaphores
+ * between main executable and shared libraries, or even between multiple
+ * shared libraries. USDT semaphore has to be contained to individual shared
+ * library or executable to avoid unpleasant surprises with half-working USDT
+ * semaphores. We enforce this by marking semaphore ELF symbols as having
+ * a hidden visibility. This is quite an advanced use case and consideration
+ * and for most users this should have no consequences whatsoever.
+ */
+#define USDT_DEFINE_SEMA(sema)							\
+	struct usdt_sema __usdt_sema_sec USDT_SEMA(sema)			\
+		__usdt_asm_name(USDT_SEMA(sema))				\
+		__attribute__((visibility("hidden"))) = { 0 }
+
+/*
+ * Declare extern reference to user-defined USDT semaphore `sema`.
+ *
+ * Refers to a variable defined in another compilation unit by
+ * USDT_DEFINE_SEMA() and allows to use the same USDT semaphore across
+ * multiple compilation units (i.e., .c and .cpp files).
+ *
+ * See USDT_DEFINE_SEMA() notes above for C++ language usage peculiarities.
+ */
+#define USDT_DECLARE_SEMA(sema)							\
+	extern struct usdt_sema USDT_SEMA(sema) __usdt_asm_name(USDT_SEMA(sema))
+
+/*
+ * Check if user-defined USDT semaphore `sema` is "active" (i.e., whether it
+ * is attached to by external tracing tooling and is actively observed).
+ *
+ * This macro can be used to decide whether any additional and potentially
+ * expensive data collection or processing should be done to pass extra
+ * information into USDT(s) associated with USDT semaphore `sema`.
+ *
+ * N.B. Such checks are necessarily racy. Between checking the state of USDT
+ * semaphore and triggering associated USDT(s), the active tracer might attach
+ * or detach. This race should be extremely rare and worst case should result
+ * in one-time missed USDT event or wasted extra data collection and
+ * processing. USDT-using tracers should be written with this in mind and is
+ * not a concern of the application defining USDTs with associated semaphore.
+ */
+#define USDT_SEMA_IS_ACTIVE(sema) (USDT_SEMA(sema).active > 0)
+
+/*
+ * Invoke USDT specified by `group` and `name` identifiers and associate
+ * explicitly user-defined semaphore `sema` with it. Pass through `args` as
+ * USDT arguments. `args` are optional and zero arguments are acceptable.
+ *
+ * Semaphore is defined with the help of USDT_DEFINE_SEMA() macro and can be
+ * checked whether active with USDT_SEMA_IS_ACTIVE().
+ */
+#ifdef __usdt_va_opt
+#define USDT_WITH_EXPLICIT_SEMA(sema, group, name, ...)				\
+	__usdt_probe(group, name, __usdt_sema_explicit, USDT_SEMA(sema), ##__VA_ARGS__)
+#else
+#define USDT_WITH_EXPLICIT_SEMA(sema, group, name, ...)				\
+	__usdt_probe(group, name, __usdt_sema_explicit, USDT_SEMA(sema) __VA_OPT__(,) __VA_ARGS__)
+#endif
+
+/*
+ * Adjustable implementation aspects
+ */
+#ifndef USDT_ARG_CONSTRAINT
+#if defined __powerpc__
+#define USDT_ARG_CONSTRAINT		nZr
+#elif defined __arm__
+#define USDT_ARG_CONSTRAINT		g
+#elif defined __loongarch__
+#define USDT_ARG_CONSTRAINT		nmr
+#else
+#define USDT_ARG_CONSTRAINT		nor
+#endif
+#endif /* USDT_ARG_CONSTRAINT */
+
+#ifndef USDT_NOP
+#if defined(__ia64__) || defined(__s390__) || defined(__s390x__)
+#define USDT_NOP			nop 0
+#else
+#define USDT_NOP			nop
+#endif
+#endif /* USDT_NOP */
+
+/*
+ * Implementation details
+ */
+/* USDT name for implicitly-defined USDT semaphore, derived from group:name */
+#define __usdt_sema_name(group, name)	__usdt_sema_##group##__##name
+/* ELF section into which USDT semaphores are put */
+#define __usdt_sema_sec			__attribute__((section(".probes")))
+
+#define __usdt_concat(a, b)		a ## b
+#define __usdt_apply(fn, n)		__usdt_concat(fn, n)
+
+#ifndef __usdt_nth
+#define __usdt_nth(_, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, N, ...) N
+#endif
+
+#ifndef __usdt_narg
+#ifdef __usdt_va_opt
+#define __usdt_narg(...) __usdt_nth(_ __VA_OPT__(,) __VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+#else
+#define __usdt_narg(...) __usdt_nth(_, ##__VA_ARGS__, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+#endif
+#endif /* __usdt_narg */
+
+#define __usdt_hash			#
+#define __usdt_str_(x)			#x
+#define __usdt_str(x)			__usdt_str_(x)
+
+#ifndef __usdt_asm_name
+#define __usdt_asm_name(name)		__asm__(__usdt_str(name))
+#endif
+
+#define __usdt_asm0()		"\n"
+#define __usdt_asm1(x)		__usdt_str(x) "\n"
+#define __usdt_asm2(x, ...)	__usdt_str(x) "," __usdt_asm1(__VA_ARGS__)
+#define __usdt_asm3(x, ...)	__usdt_str(x) "," __usdt_asm2(__VA_ARGS__)
+#define __usdt_asm4(x, ...)	__usdt_str(x) "," __usdt_asm3(__VA_ARGS__)
+#define __usdt_asm5(x, ...)	__usdt_str(x) "," __usdt_asm4(__VA_ARGS__)
+#define __usdt_asm6(x, ...)	__usdt_str(x) "," __usdt_asm5(__VA_ARGS__)
+#define __usdt_asm7(x, ...)	__usdt_str(x) "," __usdt_asm6(__VA_ARGS__)
+#define __usdt_asm8(x, ...)	__usdt_str(x) "," __usdt_asm7(__VA_ARGS__)
+#define __usdt_asm9(x, ...)	__usdt_str(x) "," __usdt_asm8(__VA_ARGS__)
+#define __usdt_asm10(x, ...)	__usdt_str(x) "," __usdt_asm9(__VA_ARGS__)
+#define __usdt_asm11(x, ...)	__usdt_str(x) "," __usdt_asm10(__VA_ARGS__)
+#define __usdt_asm12(x, ...)	__usdt_str(x) "," __usdt_asm11(__VA_ARGS__)
+#define __usdt_asm(...)		__usdt_apply(__usdt_asm, __usdt_narg(__VA_ARGS__))(__VA_ARGS__)
+
+#ifdef __LP64__
+#define __usdt_asm_addr		.8byte
+#else
+#define __usdt_asm_addr		.4byte
+#endif
+
+#define __usdt_asm_strz_(x)	__usdt_asm1(.asciz #x)
+#define __usdt_asm_strz(x)	__usdt_asm_strz_(x)
+#define __usdt_asm_str_(x)	__usdt_asm1(.ascii #x)
+#define __usdt_asm_str(x)	__usdt_asm_str_(x)
+
+/* "semaphoreless" USDT case */
+#ifndef __usdt_sema_none
+#define __usdt_sema_none(sema)
+#endif
+
+/* implicitly defined __usdt_sema__group__name semaphore (using weak symbols) */
+#ifndef __usdt_sema_implicit
+#define __usdt_sema_implicit(sema)								\
+	__asm__ __volatile__ (									\
+	__usdt_asm1(.ifndef sema)								\
+	__usdt_asm3(		.pushsection .probes, "aw", "progbits")				\
+	__usdt_asm1(		.weak sema)							\
+	__usdt_asm1(		.hidden sema)							\
+	__usdt_asm1(		.align 2)							\
+	__usdt_asm1(sema:)									\
+	__usdt_asm1(		.zero 2)							\
+	__usdt_asm2(		.type sema, @object)						\
+	__usdt_asm2(		.size sema, 2)							\
+	__usdt_asm1(		.popsection)							\
+	__usdt_asm1(.endif)									\
+	);
+#endif
+
+/* externally defined semaphore using USDT_DEFINE_SEMA() and passed explicitly by user */
+#ifndef __usdt_sema_explicit
+#define __usdt_sema_explicit(sema)								\
+	__asm__ __volatile__ ("" :: "m" (sema));
+#endif
+
+/* main USDT definition (nop and .note.stapsdt metadata) */
+#define __usdt_probe(group, name, sema_def, sema, ...) do {					\
+	sema_def(sema)										\
+	__asm__ __volatile__ (									\
+	__usdt_asm( 990:	USDT_NOP)							\
+	__usdt_asm3(		.pushsection .note.stapsdt, "", "note")				\
+	__usdt_asm1(		.balign 4)							\
+	__usdt_asm3(		.4byte 992f-991f,994f-993f,3)					\
+	__usdt_asm1(991:	.asciz "stapsdt")						\
+	__usdt_asm1(992:	.balign 4)							\
+	__usdt_asm1(993:	__usdt_asm_addr 990b)						\
+	__usdt_asm1(		__usdt_asm_addr _.stapsdt.base)					\
+	__usdt_asm1(		__usdt_asm_addr sema)						\
+	__usdt_asm_strz(group)									\
+	__usdt_asm_strz(name)									\
+	__usdt_asm_args(__VA_ARGS__)								\
+	__usdt_asm1(		.ascii "\0")							\
+	__usdt_asm1(994:	.balign 4)							\
+	__usdt_asm1(		.popsection)							\
+	__usdt_asm1(.ifndef _.stapsdt.base)							\
+	__usdt_asm5(		.pushsection .stapsdt.base,"aG","progbits",.stapsdt.base,comdat)\
+	__usdt_asm1(		.weak _.stapsdt.base)						\
+	__usdt_asm1(		.hidden _.stapsdt.base)						\
+	__usdt_asm1(_.stapsdt.base:)								\
+	__usdt_asm1(		.space 1)							\
+	__usdt_asm2(		.size _.stapsdt.base, 1)					\
+	__usdt_asm1(		.popsection)							\
+	__usdt_asm1(.endif)									\
+	:: __usdt_asm_ops(__VA_ARGS__)								\
+	);											\
+} while (0)
+
+/*
+ * NB: gdb PR24541 highlighted an unspecified corner of the sdt.h
+ * operand note format.
+ *
+ * The named register may be a longer or shorter (!) alias for the
+ * storage where the value in question is found. For example, on
+ * i386, 64-bit value may be put in register pairs, and a register
+ * name stored would identify just one of them. Previously, gcc was
+ * asked to emit the %w[id] (16-bit alias of some registers holding
+ * operands), even when a wider 32-bit value was used.
+ *
+ * Bottom line: the byte-width given before the @ sign governs. If
+ * there is a mismatch between that width and that of the named
+ * register, then a sys/sdt.h note consumer may need to employ
+ * architecture-specific heuristics to figure out where the compiler
+ * has actually put the complete value.
+ */
+#if defined(__powerpc__) || defined(__powerpc64__)
+#define __usdt_argref(id)	%I[id]%[id]
+#elif defined(__i386__)
+#define __usdt_argref(id)	%k[id]		/* gcc.gnu.org/PR80115 sourceware.org/PR24541 */
+#else
+#define __usdt_argref(id)	%[id]
+#endif
+
+#define __usdt_asm_arg(n)	__usdt_asm_str(%c[__usdt_asz##n])				\
+				__usdt_asm1(.ascii "@")						\
+				__usdt_asm_str(__usdt_argref(__usdt_aval##n))
+
+#define __usdt_asm_args0	/* no arguments */
+#define __usdt_asm_args1	__usdt_asm_arg(1)
+#define __usdt_asm_args2	__usdt_asm_args1 __usdt_asm1(.ascii " ") __usdt_asm_arg(2)
+#define __usdt_asm_args3	__usdt_asm_args2 __usdt_asm1(.ascii " ") __usdt_asm_arg(3)
+#define __usdt_asm_args4	__usdt_asm_args3 __usdt_asm1(.ascii " ") __usdt_asm_arg(4)
+#define __usdt_asm_args5	__usdt_asm_args4 __usdt_asm1(.ascii " ") __usdt_asm_arg(5)
+#define __usdt_asm_args6	__usdt_asm_args5 __usdt_asm1(.ascii " ") __usdt_asm_arg(6)
+#define __usdt_asm_args7	__usdt_asm_args6 __usdt_asm1(.ascii " ") __usdt_asm_arg(7)
+#define __usdt_asm_args8	__usdt_asm_args7 __usdt_asm1(.ascii " ") __usdt_asm_arg(8)
+#define __usdt_asm_args9	__usdt_asm_args8 __usdt_asm1(.ascii " ") __usdt_asm_arg(9)
+#define __usdt_asm_args10	__usdt_asm_args9 __usdt_asm1(.ascii " ") __usdt_asm_arg(10)
+#define __usdt_asm_args11	__usdt_asm_args10 __usdt_asm1(.ascii " ") __usdt_asm_arg(11)
+#define __usdt_asm_args12	__usdt_asm_args11 __usdt_asm1(.ascii " ") __usdt_asm_arg(12)
+#define __usdt_asm_args(...)	__usdt_apply(__usdt_asm_args, __usdt_narg(__VA_ARGS__))
+
+#define __usdt_is_arr(x)	(__builtin_classify_type(x) == 14 || __builtin_classify_type(x) == 5)
+#define __usdt_arg_size(x)	(__usdt_is_arr(x) ? sizeof(void *) : sizeof(x))
+
+/*
+ * We can't use __builtin_choose_expr() in C++, so fall back to table-based
+ * signedness determination for known types, utilizing templates magic.
+ */
+#ifdef __cplusplus
+
+#define __usdt_is_signed(x)	(!__usdt_is_arr(x) && __usdt_t<__typeof(x)>::is_signed)
+
+#include <cstddef>
+
+template<typename T> struct __usdt_t { static const bool is_signed = false; };
+template<typename A> struct __usdt_t<A[]> : public __usdt_t<A *> {};
+template<typename A, size_t N> struct __usdt_t<A[N]> : public __usdt_t<A *> {};
+
+#define __usdt_def_signed(T)									\
+template<> struct __usdt_t<T>		     { static const bool is_signed = true; };		\
+template<> struct __usdt_t<const T>	     { static const bool is_signed = true; };		\
+template<> struct __usdt_t<volatile T>	     { static const bool is_signed = true; };		\
+template<> struct __usdt_t<const volatile T> { static const bool is_signed = true; }
+#define __usdt_maybe_signed(T)									\
+template<> struct __usdt_t<T>		     { static const bool is_signed = (T)-1 < (T)1; };	\
+template<> struct __usdt_t<const T>	     { static const bool is_signed = (T)-1 < (T)1; };	\
+template<> struct __usdt_t<volatile T>	     { static const bool is_signed = (T)-1 < (T)1; };	\
+template<> struct __usdt_t<const volatile T> { static const bool is_signed = (T)-1 < (T)1; }
+
+__usdt_def_signed(signed char);
+__usdt_def_signed(short);
+__usdt_def_signed(int);
+__usdt_def_signed(long);
+__usdt_def_signed(long long);
+__usdt_maybe_signed(char);
+__usdt_maybe_signed(wchar_t);
+
+#else /* !__cplusplus */
+
+#define __usdt_is_inttype(x)	(__builtin_classify_type(x) >= 1 && __builtin_classify_type(x) <= 4)
+#define __usdt_inttype(x)	__typeof(__builtin_choose_expr(__usdt_is_inttype(x), (x), 0U))
+#define __usdt_is_signed(x)	((__usdt_inttype(x))-1 < (__usdt_inttype(x))1)
+
+#endif /* __cplusplus */
+
+#define __usdt_asm_op(n, x)									\
+	[__usdt_asz##n] "n" ((__usdt_is_signed(x) ? (int)-1 : 1) * (int)__usdt_arg_size(x)),	\
+	[__usdt_aval##n] __usdt_str(USDT_ARG_CONSTRAINT)(x)
+
+#define __usdt_asm_ops0()				[__usdt_dummy] "g" (0)
+#define __usdt_asm_ops1(x)				__usdt_asm_op(1, x)
+#define __usdt_asm_ops2(a,x)				__usdt_asm_ops1(a), __usdt_asm_op(2, x)
+#define __usdt_asm_ops3(a,b,x)				__usdt_asm_ops2(a,b), __usdt_asm_op(3, x)
+#define __usdt_asm_ops4(a,b,c,x)			__usdt_asm_ops3(a,b,c), __usdt_asm_op(4, x)
+#define __usdt_asm_ops5(a,b,c,d,x)			__usdt_asm_ops4(a,b,c,d), __usdt_asm_op(5, x)
+#define __usdt_asm_ops6(a,b,c,d,e,x)			__usdt_asm_ops5(a,b,c,d,e), __usdt_asm_op(6, x)
+#define __usdt_asm_ops7(a,b,c,d,e,f,x)			__usdt_asm_ops6(a,b,c,d,e,f), __usdt_asm_op(7, x)
+#define __usdt_asm_ops8(a,b,c,d,e,f,g,x)		__usdt_asm_ops7(a,b,c,d,e,f,g), __usdt_asm_op(8, x)
+#define __usdt_asm_ops9(a,b,c,d,e,f,g,h,x)		__usdt_asm_ops8(a,b,c,d,e,f,g,h), __usdt_asm_op(9, x)
+#define __usdt_asm_ops10(a,b,c,d,e,f,g,h,i,x)		__usdt_asm_ops9(a,b,c,d,e,f,g,h,i), __usdt_asm_op(10, x)
+#define __usdt_asm_ops11(a,b,c,d,e,f,g,h,i,j,x)		__usdt_asm_ops10(a,b,c,d,e,f,g,h,i,j), __usdt_asm_op(11, x)
+#define __usdt_asm_ops12(a,b,c,d,e,f,g,h,i,j,k,x)	__usdt_asm_ops11(a,b,c,d,e,f,g,h,i,j,k), __usdt_asm_op(12, x)
+#define __usdt_asm_ops(...)				__usdt_apply(__usdt_asm_ops, __usdt_narg(__VA_ARGS__))(__VA_ARGS__)
+
+#endif /* __USDT_H */
diff --git a/tools/testing/selftests/bpf/verifier/.gitignore b/tools/testing/selftests/bpf/verifier/.gitignore
new file mode 100644
index 000000000000..89c4a3d37544
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+tests.h
diff --git a/tools/testing/selftests/bpf/verifier/atomic_and.c b/tools/testing/selftests/bpf/verifier/atomic_and.c
new file mode 100644
index 000000000000..fe4bb70eb9c5
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_and.c
@@ -0,0 +1,100 @@
+{
+	"BPF_ATOMIC_AND without fetch",
+	.insns = {
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* atomic_and(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_AND, BPF_REG_10, BPF_REG_1, -8),
+		/* if (val != 0x010) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x010, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* r1 should not be clobbered, no BPF_FETCH flag */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC_AND with fetch",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 123),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* old = atomic_fetch_and(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x010) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (for fear of x86 JIT bug) */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC_AND with fetch 32bit",
+	.insns = {
+		/* r0 = (s64) -1 */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+		/* old = atomic_fetch_and(&val, 0x011); */
+		BPF_MOV32_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x010) exit(2); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+		BPF_MOV32_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (for fear of x86 JIT bug)
+		 * It should be -1 so add 1 to get exit code.
+		 */
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC_AND with fetch - r0 as source reg",
+	.insns = {
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* old = atomic_fetch_and(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_0, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_10, BPF_REG_0, -8),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x110, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x010) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x010, 2),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_bounds.c b/tools/testing/selftests/bpf/verifier/atomic_bounds.c
new file mode 100644
index 000000000000..e82183e4914f
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_bounds.c
@@ -0,0 +1,27 @@
+{
+	"BPF_ATOMIC bounds propagation, mem->reg",
+	.insns = {
+		/* a = 0; */
+		/*
+		 * Note this is implemented with two separate instructions,
+		 * where you might think one would suffice:
+		 *
+		 * BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		 *
+		 * This is because BPF_ST_MEM doesn't seem to set the stack slot
+		 * type to 0 when storing an immediate.
+		 */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+		/* b = atomic_fetch_add(&a, 1); */
+		BPF_MOV64_IMM(BPF_REG_1, 1),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* Verifier should be able to tell that this infinite loop isn't reachable. */
+		/* if (b) while (true) continue; */
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, -1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "back-edge",
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c b/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c
new file mode 100644
index 000000000000..9a7b1106fda8
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_cmpxchg.c
@@ -0,0 +1,235 @@
+{
+	"atomic compare-and-exchange smoketest - 64bit",
+	.insns = {
+		/* val = 3; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		/* old = atomic_cmpxchg(&val, 2, 4); */
+		BPF_MOV64_IMM(BPF_REG_1, 4),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 3) exit(2); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* if (val != 3) exit(3); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* old = atomic_cmpxchg(&val, 3, 4); */
+		BPF_MOV64_IMM(BPF_REG_1, 4),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 3) exit(4); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 4),
+		BPF_EXIT_INSN(),
+		/* if (val != 4) exit(5); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 5),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"atomic compare-and-exchange smoketest - 32bit",
+	.insns = {
+		/* val = 3; */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+		/* old = atomic_cmpxchg(&val, 2, 4); */
+		BPF_MOV32_IMM(BPF_REG_1, 4),
+		BPF_MOV32_IMM(BPF_REG_0, 2),
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 3) exit(2); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* if (val != 3) exit(3); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* old = atomic_cmpxchg(&val, 3, 4); */
+		BPF_MOV32_IMM(BPF_REG_1, 4),
+		BPF_MOV32_IMM(BPF_REG_0, 3),
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 3) exit(4); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 3, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 4),
+		BPF_EXIT_INSN(),
+		/* if (val != 4) exit(5); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 5),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"Can't use cmpxchg on uninit src reg",
+	.insns = {
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_2, -8),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "!read_ok",
+},
+{
+	"BPF_W cmpxchg should zero top 32 bits",
+	.insns = {
+		/* r0 = U64_MAX; */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+		/* u64 val = r0; */
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+		/* r0 = (u32)atomic_cmpxchg((u32 *)&val, r0, 1); */
+		BPF_MOV32_IMM(BPF_REG_1, 1),
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* r1 = 0x00000000FFFFFFFFull; */
+		BPF_MOV64_IMM(BPF_REG_1, 1),
+		BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 32),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
+		/* if (r0 != r1) exit(1); */
+		BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_1, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"Dest pointer in r0 - fail",
+	.insns = {
+		/* val = 0; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+		/* r0 = &val */
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+		/* r0 = atomic_cmpxchg(&val, r0, 1); */
+		BPF_MOV64_IMM(BPF_REG_1, 1),
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* if (r0 != 0) exit(1); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+	"Dest pointer in r0 - succeed",
+	.insns = {
+		/* r0 = &val */
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+		/* val = r0; */
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+		/* r0 = atomic_cmpxchg(&val, r0, 0); */
+		BPF_MOV64_IMM(BPF_REG_1, 0),
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* r1 = *r0 */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+	"Dest pointer in r0 - succeed, check 2",
+	.insns = {
+		/* r0 = &val */
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+		/* val = r0; */
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+		/* r5 = &val */
+		BPF_MOV64_REG(BPF_REG_5, BPF_REG_10),
+		/* r0 = atomic_cmpxchg(&val, r0, r5); */
+		BPF_ATOMIC_OP(BPF_DW, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+		/* r1 = *r0 */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+	"Dest pointer in r0 - succeed, check 3",
+	.insns = {
+		/* r0 = &val */
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+		/* val = r0; */
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+		/* r5 = &val */
+		BPF_MOV64_REG(BPF_REG_5, BPF_REG_10),
+		/* r0 = atomic_cmpxchg(&val, r0, r5); */
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "invalid size of register fill",
+	.errstr_unpriv = "R0 leaks addr into mem",
+},
+{
+	"Dest pointer in r0 - succeed, check 4",
+	.insns = {
+		/* r0 = &val */
+		BPF_MOV32_REG(BPF_REG_0, BPF_REG_10),
+		/* val = r0; */
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
+		/* r5 = &val */
+		BPF_MOV32_REG(BPF_REG_5, BPF_REG_10),
+		/* r0 = atomic_cmpxchg(&val, r0, r5); */
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+		/* r1 = *r10 */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -8),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "R10 partial copy of pointer",
+},
+{
+	"Dest pointer in r0 - succeed, check 5",
+	.insns = {
+		/* r0 = &val */
+		BPF_MOV32_REG(BPF_REG_0, BPF_REG_10),
+		/* val = r0; */
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -8),
+		/* r5 = &val */
+		BPF_MOV32_REG(BPF_REG_5, BPF_REG_10),
+		/* r0 = atomic_cmpxchg(&val, r0, r5); */
+		BPF_ATOMIC_OP(BPF_W, BPF_CMPXCHG, BPF_REG_10, BPF_REG_5, -8),
+		/* r1 = *r0 */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, -8),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "R0 invalid mem access",
+	.errstr_unpriv = "R10 partial copy of pointer",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_fetch.c b/tools/testing/selftests/bpf/verifier/atomic_fetch.c
new file mode 100644
index 000000000000..5bf03fb4fa2b
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_fetch.c
@@ -0,0 +1,151 @@
+{
+	"atomic dw/fetch and address leakage of (map ptr & -1) via stack slot",
+	.insns = {
+		BPF_LD_IMM64(BPF_REG_1, -1),
+		BPF_LD_MAP_FD(BPF_REG_8, 0),
+		BPF_LD_MAP_FD(BPF_REG_9, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+		BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+		BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_2, 0),
+		BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+		BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 2, 4 },
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "leaking pointer from stack off -8",
+},
+{
+	"atomic dw/fetch and address leakage of (map ptr & -1) via returned value",
+	.insns = {
+		BPF_LD_IMM64(BPF_REG_1, -1),
+		BPF_LD_MAP_FD(BPF_REG_8, 0),
+		BPF_LD_MAP_FD(BPF_REG_9, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+		BPF_ATOMIC_OP(BPF_DW, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+		BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+		BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+		BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 2, 4 },
+	.result = ACCEPT,
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "leaking pointer from stack off -8",
+},
+{
+	"atomic w/fetch and address leakage of (map ptr & -1) via stack slot",
+	.insns = {
+		BPF_LD_IMM64(BPF_REG_1, -1),
+		BPF_LD_MAP_FD(BPF_REG_8, 0),
+		BPF_LD_MAP_FD(BPF_REG_9, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+		BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+		BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_2, 0),
+		BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+		BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 2, 4 },
+	.result = REJECT,
+	.errstr = "invalid size of register fill",
+},
+{
+	"atomic w/fetch and address leakage of (map ptr & -1) via returned value",
+	.insns = {
+		BPF_LD_IMM64(BPF_REG_1, -1),
+		BPF_LD_MAP_FD(BPF_REG_8, 0),
+		BPF_LD_MAP_FD(BPF_REG_9, 0),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+		BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_9, 0),
+		BPF_ATOMIC_OP(BPF_W, BPF_AND | BPF_FETCH, BPF_REG_2, BPF_REG_1, 0),
+		BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+		BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+		BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_9, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 2, 4 },
+	.result = REJECT,
+	.errstr = "invalid size of register fill",
+},
+#define __ATOMIC_FETCH_OP_TEST(src_reg, dst_reg, operand1, op, operand2, expect) \
+	{								\
+		"atomic fetch " #op ", src=" #dst_reg " dst=" #dst_reg,	\
+		.insns = {						\
+			/* u64 val = operan1; */			\
+			BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, operand1),	\
+			/* u64 old = atomic_fetch_add(&val, operand2); */ \
+			BPF_MOV64_REG(dst_reg, BPF_REG_10),		\
+			BPF_MOV64_IMM(src_reg, operand2),		\
+			BPF_ATOMIC_OP(BPF_DW, op,			\
+				      dst_reg, src_reg, -8),		\
+			/* if (old != operand1) exit(1); */		\
+			BPF_JMP_IMM(BPF_JEQ, src_reg, operand1, 2),	\
+			BPF_MOV64_IMM(BPF_REG_0, 1),			\
+			BPF_EXIT_INSN(),				\
+			/* if (val != result) exit (2); */		\
+			BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),	\
+			BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, expect, 2),	\
+			BPF_MOV64_IMM(BPF_REG_0, 2),			\
+			BPF_EXIT_INSN(),				\
+			/* exit(0); */					\
+			BPF_MOV64_IMM(BPF_REG_0, 0),			\
+			BPF_EXIT_INSN(),				\
+		},							\
+		.result = ACCEPT,					\
+	}
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 1, BPF_ADD | BPF_FETCH, 2, 3),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_AND | BPF_FETCH, 0x011, 0x010),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_OR | BPF_FETCH, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_XOR | BPF_FETCH, 0x011, 0x001),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_2, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_0, BPF_REG_1, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_1, BPF_REG_0, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_2, BPF_REG_3, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_4, BPF_REG_5, 0x010, BPF_XCHG, 0x011, 0x011),
+__ATOMIC_FETCH_OP_TEST(BPF_REG_9, BPF_REG_8, 0x010, BPF_XCHG, 0x011, 0x011),
+#undef __ATOMIC_FETCH_OP_TEST
diff --git a/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c b/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c
new file mode 100644
index 000000000000..a91de8cd9def
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_fetch_add.c
@@ -0,0 +1,106 @@
+{
+	"BPF_ATOMIC_FETCH_ADD smoketest - 64bit",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		/* Write 3 to stack */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		/* Put a 1 in R1, add it to the 3 on the stack, and load the value back into R1 */
+		BPF_MOV64_IMM(BPF_REG_1, 1),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* Check the value we loaded back was 3 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* Load value from stack */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+		/* Check value loaded from stack was 4 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC_FETCH_ADD smoketest - 32bit",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		/* Write 3 to stack */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+		/* Put a 1 in R1, add it to the 3 on the stack, and load the value back into R1 */
+		BPF_MOV32_IMM(BPF_REG_1, 1),
+		BPF_ATOMIC_OP(BPF_W, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+		/* Check the value we loaded back was 3 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* Load value from stack */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+		/* Check value loaded from stack was 4 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"Can't use ATM_FETCH_ADD on frame pointer",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_10, -8),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr_unpriv = "R10 leaks addr into mem",
+	.errstr = "frame pointer is read only",
+},
+{
+	"Can't use ATM_FETCH_ADD on uninit src reg",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_10, BPF_REG_2, -8),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	/* It happens that the address leak check is first, but it would also be
+	 * complain about the fact that we're trying to modify R10.
+	 */
+	.errstr = "!read_ok",
+},
+{
+	"Can't use ATM_FETCH_ADD on uninit dst reg",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_2, BPF_REG_0, -8),
+		BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	/* It happens that the address leak check is first, but it would also be
+	 * complain about the fact that we're trying to modify R10.
+	 */
+	.errstr = "!read_ok",
+},
+{
+	"Can't use ATM_FETCH_ADD on kernel memory",
+	.insns = {
+		/* This is an fentry prog, context is array of the args of the
+		 * kernel function being called. Load first arg into R2.
+		 */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, 0),
+		/* First arg of bpf_fentry_test7 is a pointer to a struct.
+		 * Attempt to modify that struct. Verifier shouldn't let us
+		 * because it's kernel memory.
+		 */
+		BPF_MOV64_IMM(BPF_REG_3, 1),
+		BPF_ATOMIC_OP(BPF_DW, BPF_ADD | BPF_FETCH, BPF_REG_2, BPF_REG_3, 0),
+		/* Done */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_TRACE_FENTRY,
+	.kfunc = "bpf_fentry_test7",
+	.result = REJECT,
+	.errstr = "only read is supported",
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_invalid.c b/tools/testing/selftests/bpf/verifier/atomic_invalid.c
new file mode 100644
index 000000000000..25f4ac1c69ab
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_invalid.c
@@ -0,0 +1,25 @@
+#define __INVALID_ATOMIC_ACCESS_TEST(op)				\
+	{								\
+		"atomic " #op " access through non-pointer ",		\
+		.insns = {						\
+			BPF_MOV64_IMM(BPF_REG_0, 1),			\
+			BPF_MOV64_IMM(BPF_REG_1, 0),			\
+			BPF_ATOMIC_OP(BPF_DW, op, BPF_REG_1, BPF_REG_0, -8), \
+			BPF_MOV64_IMM(BPF_REG_0, 0),			\
+			BPF_EXIT_INSN(),				\
+		},							\
+		.result = REJECT,					\
+		.errstr = "R1 invalid mem access 'scalar'"		\
+	}
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_ADD | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_AND),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_AND | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_OR),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_OR | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XOR | BPF_FETCH),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_XCHG),
+__INVALID_ATOMIC_ACCESS_TEST(BPF_CMPXCHG),
diff --git a/tools/testing/selftests/bpf/verifier/atomic_or.c b/tools/testing/selftests/bpf/verifier/atomic_or.c
new file mode 100644
index 000000000000..9d0716ac5080
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_or.c
@@ -0,0 +1,102 @@
+{
+	"BPF_ATOMIC OR without fetch",
+	.insns = {
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* atomic_or(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_OR, BPF_REG_10, BPF_REG_1, -8),
+		/* if (val != 0x111) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x111, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* r1 should not be clobbered, no BPF_FETCH flag */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC OR with fetch",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 123),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* old = atomic_fetch_or(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x111) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x111, 2),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (for fear of x86 JIT bug) */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC OR with fetch 32bit",
+	.insns = {
+		/* r0 = (s64) -1 */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+		/* old = atomic_fetch_or(&val, 0x011); */
+		BPF_MOV32_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_W, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x111) exit(2); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x111, 2),
+		BPF_MOV32_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (for fear of x86 JIT bug)
+		 * It should be -1 so add 1 to get exit code.
+		 */
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_W atomic_fetch_or should zero top 32 bits",
+	.insns = {
+		/* r1 = U64_MAX; */
+		BPF_MOV64_IMM(BPF_REG_1, 0),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 1),
+		/* u64 val = r1; */
+		BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8),
+		/* r1 = (u32)atomic_fetch_or((u32 *)&val, 2); */
+		BPF_MOV32_IMM(BPF_REG_1, 2),
+		BPF_ATOMIC_OP(BPF_W, BPF_OR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* r2 = 0x00000000FFFFFFFF; */
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 1),
+		/* if (r2 != r1) exit(1); */
+		BPF_JMP_REG(BPF_JEQ, BPF_REG_2, BPF_REG_1, 2),
+		BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_xchg.c b/tools/testing/selftests/bpf/verifier/atomic_xchg.c
new file mode 100644
index 000000000000..33e2d6c973ee
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_xchg.c
@@ -0,0 +1,46 @@
+{
+	"atomic exchange smoketest - 64bit",
+	.insns = {
+		/* val = 3; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 3),
+		/* old = atomic_xchg(&val, 4); */
+		BPF_MOV64_IMM(BPF_REG_1, 4),
+		BPF_ATOMIC_OP(BPF_DW, BPF_XCHG, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 3) exit(1); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* if (val != 4) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"atomic exchange smoketest - 32bit",
+	.insns = {
+		/* val = 3; */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 3),
+		/* old = atomic_xchg(&val, 4); */
+		BPF_MOV32_IMM(BPF_REG_1, 4),
+		BPF_ATOMIC_OP(BPF_W, BPF_XCHG, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 3) exit(1); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* if (val != 4) exit(2); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_0, 4, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/atomic_xor.c b/tools/testing/selftests/bpf/verifier/atomic_xor.c
new file mode 100644
index 000000000000..74e8fb46694b
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/atomic_xor.c
@@ -0,0 +1,77 @@
+{
+	"BPF_ATOMIC XOR without fetch",
+	.insns = {
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* atomic_xor(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_XOR, BPF_REG_10, BPF_REG_1, -8),
+		/* if (val != 0x101) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0x101, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		BPF_EXIT_INSN(),
+		/* r1 should not be clobbered, no BPF_FETCH flag */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x011, 1),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC XOR with fetch",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 123),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0x110),
+		/* old = atomic_fetch_xor(&val, 0x011); */
+		BPF_MOV64_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_DW, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -8),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x101) exit(2); */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -8),
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
+		BPF_MOV64_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (fxor fear of x86 JIT bug) */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 123, 2),
+		BPF_MOV64_IMM(BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+		/* exit(0); */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"BPF_ATOMIC XOR with fetch 32bit",
+	.insns = {
+		/* r0 = (s64) -1 */
+		BPF_MOV64_IMM(BPF_REG_0, 0),
+		BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 1),
+		/* val = 0x110; */
+		BPF_ST_MEM(BPF_W, BPF_REG_10, -4, 0x110),
+		/* old = atomic_fetch_xor(&val, 0x011); */
+		BPF_MOV32_IMM(BPF_REG_1, 0x011),
+		BPF_ATOMIC_OP(BPF_W, BPF_XOR | BPF_FETCH, BPF_REG_10, BPF_REG_1, -4),
+		/* if (old != 0x110) exit(3); */
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x110, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 3),
+		BPF_EXIT_INSN(),
+		/* if (val != 0x101) exit(2); */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_10, -4),
+		BPF_JMP32_IMM(BPF_JEQ, BPF_REG_1, 0x101, 2),
+		BPF_MOV32_IMM(BPF_REG_1, 2),
+		BPF_EXIT_INSN(),
+		/* Check R0 wasn't clobbered (fxor fear of x86 JIT bug)
+		 * It should be -1 so add 1 to get exit code.
+		 */
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic.c b/tools/testing/selftests/bpf/verifier/basic.c
new file mode 100644
index 000000000000..de84f0d57082
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic.c
@@ -0,0 +1,23 @@
+{
+	"empty prog",
+	.insns = {
+	},
+	.errstr = "last insn is not an exit or jmp",
+	.result = REJECT,
+},
+{
+	"only exit insn",
+	.insns = {
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R0 !read_ok",
+	.result = REJECT,
+},
+{
+	"no bpf_exit",
+	.insns = {
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2),
+	},
+	.errstr = "not an exit",
+	.result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_call.c b/tools/testing/selftests/bpf/verifier/basic_call.c
new file mode 100644
index 000000000000..a8c6ab4c1622
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_call.c
@@ -0,0 +1,50 @@
+{
+	"invalid call insn1",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "unknown opcode 8d",
+	.result = REJECT,
+},
+{
+	"invalid call insn2",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "BPF_CALL uses reserved",
+	.result = REJECT,
+},
+{
+	"invalid function call",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid func unknown#1234567",
+	.result = REJECT,
+},
+{
+	"invalid argument register",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 !read_ok",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"non-invalid argument register",
+	.insns = {
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_cgroup_classid),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_instr.c b/tools/testing/selftests/bpf/verifier/basic_instr.c
new file mode 100644
index 000000000000..bd928a72ad73
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_instr.c
@@ -0,0 +1,219 @@
+{
+	"add+sub+mul",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 1),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2),
+	BPF_MOV64_IMM(BPF_REG_2, 3),
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1),
+	BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = -3,
+},
+{
+	"xor32 zero extend check",
+	.insns = {
+	BPF_MOV32_IMM(BPF_REG_2, -1),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 32),
+	BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 0xffff),
+	BPF_ALU32_REG(BPF_XOR, BPF_REG_2, BPF_REG_2),
+	BPF_MOV32_IMM(BPF_REG_0, 2),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+	BPF_MOV32_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"arsh32 on imm",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 5),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"arsh32 on imm 2",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 0x1122334485667788),
+	BPF_ALU32_IMM(BPF_ARSH, BPF_REG_0, 7),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = -16069393,
+},
+{
+	"arsh32 on reg",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 5),
+	BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"arsh32 on reg 2",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 0xffff55667788),
+	BPF_MOV64_IMM(BPF_REG_1, 15),
+	BPF_ALU32_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 43724,
+},
+{
+	"arsh64 on imm",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_ALU64_IMM(BPF_ARSH, BPF_REG_0, 5),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"arsh64 on reg",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 5),
+	BPF_ALU64_REG(BPF_ARSH, BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"lsh64 by 0 imm",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 1),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"rsh64 by 0 imm",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 0),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"arsh64 by 0 imm",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+	BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 0),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"lsh64 by 0 reg",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 1),
+	BPF_LD_IMM64(BPF_REG_2, 0),
+	BPF_ALU64_REG(BPF_LSH, BPF_REG_1, BPF_REG_2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"rsh64 by 0 reg",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+	BPF_LD_IMM64(BPF_REG_3, 0),
+	BPF_ALU64_REG(BPF_RSH, BPF_REG_1, BPF_REG_3),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"arsh64 by 0 reg",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 0x100000000LL),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1),
+	BPF_LD_IMM64(BPF_REG_3, 0),
+	BPF_ALU64_REG(BPF_ARSH, BPF_REG_1, BPF_REG_3),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"invalid 64-bit BPF_END with BPF_TO_BE",
+	.insns = {
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	{
+		.code  = BPF_ALU64 | BPF_END | BPF_TO_BE,
+		.dst_reg = BPF_REG_0,
+		.src_reg = 0,
+		.off   = 0,
+		.imm   = 32,
+	},
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "unknown opcode df",
+	.result = REJECT,
+},
+{
+	"mov64 src == dst",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_2),
+	// Check bounds are OK
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+},
+{
+	"mov64 src != dst",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_3),
+	// Check bounds are OK
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c b/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c
new file mode 100644
index 000000000000..7a0aab3f2cd2
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/basic_stx_ldx.c
@@ -0,0 +1,45 @@
+{
+	"invalid src register in STX",
+	.insns = {
+	BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R15 is invalid",
+	.result = REJECT,
+},
+{
+	"invalid dst register in STX",
+	.insns = {
+	BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R14 is invalid",
+	.result = REJECT,
+},
+{
+	"invalid dst register in ST",
+	.insns = {
+	BPF_ST_MEM(BPF_B, 14, -1, -1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R14 is invalid",
+	.result = REJECT,
+},
+{
+	"invalid src register in LDX",
+	.insns = {
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R12 is invalid",
+	.result = REJECT,
+},
+{
+	"invalid dst register in LDX",
+	.insns = {
+	BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R11 is invalid",
+	.result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
new file mode 100644
index 000000000000..59125b22ae39
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
@@ -0,0 +1,270 @@
+#define BTF_TYPES \
+	.btf_strings = "\0int\0i\0ctx\0callback\0main\0", \
+	.btf_types = { \
+	/* 1: int   */ BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4), \
+	/* 2: int*  */ BTF_PTR_ENC(1), \
+	/* 3: void* */ BTF_PTR_ENC(0), \
+	/* 4: int __(void*) */ BTF_FUNC_PROTO_ENC(1, 1), \
+		BTF_FUNC_PROTO_ARG_ENC(7, 3), \
+	/* 5: int __(int, int*) */ BTF_FUNC_PROTO_ENC(1, 2), \
+		BTF_FUNC_PROTO_ARG_ENC(5, 1), \
+		BTF_FUNC_PROTO_ARG_ENC(7, 2), \
+	/* 6: main      */ BTF_FUNC_ENC(20, 4), \
+	/* 7: callback  */ BTF_FUNC_ENC(11, 5), \
+	BTF_END_RAW \
+	}
+
+#define MAIN_TYPE	6
+#define CALLBACK_TYPE	7
+
+/* can't use BPF_CALL_REL, jit_subprogs adjusts IMM & OFF
+ * fields for pseudo calls
+ */
+#define PSEUDO_CALL_INSN() \
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_CALL, \
+		     INSN_OFF_MASK, INSN_IMM_MASK)
+
+/* can't use BPF_FUNC_loop constant,
+ * do_mix_fixups adjusts the IMM field
+ */
+#define HELPER_CALL_INSN() \
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, INSN_OFF_MASK, INSN_IMM_MASK)
+
+{
+	"inline simple bpf_loop call",
+	.insns = {
+	/* main */
+	/* force verifier state branching to verify logic on first and
+	 * subsequent bpf_loop insn processing steps
+	 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 2),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = { { 0, MAIN_TYPE }, { 12, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+{
+	"don't inline bpf_loop call, flags non-zero",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_7, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 9),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 7),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -10),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { HELPER_CALL_INSN() },
+	.unexpected_insns = { PSEUDO_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+{
+	"don't inline bpf_loop call, callback non-constant",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 4), /* pick a random callback */
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 10),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 3),
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	/* callback #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { HELPER_CALL_INSN() },
+	.unexpected_insns = { PSEUDO_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 14, CALLBACK_TYPE },
+		{ 16, CALLBACK_TYPE }
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"bpf_loop_inline and a dead func",
+	.insns = {
+	/* main */
+
+	/* A reference to callback #1 to make verifier count it as a func.
+	 * This reference is overwritten below and callback #1 is dead.
+	 */
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 9),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	/* callback #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 10, CALLBACK_TYPE },
+		{ 12, CALLBACK_TYPE }
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"bpf_loop_inline stack locations for loop vars",
+	.insns = {
+	/* main */
+	BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+	/* bpf_loop call #1 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 22),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	/* bpf_loop call #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 16),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	/* call func and exit */
+	BPF_CALL_REL(2),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* func */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = {
+	BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+	SKIP_INSNS(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+	SKIP_INSNS(),
+	/* offsets are the same as in the first call */
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+	SKIP_INSNS(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+	SKIP_INSNS(),
+	/* offsets differ from main because of different offset
+	 * in BPF_ST_MEM instruction
+	 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -56),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -48),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -40),
+	},
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.result = ACCEPT,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 16, MAIN_TYPE },
+		{ 25, CALLBACK_TYPE },
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"inline bpf_loop call in a big program",
+	.insns = {},
+	.fill_helper = bpf_fill_big_prog_with_loop_1,
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.flags = F_NEEDS_JIT_ENABLED,
+	.func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+
+#undef HELPER_CALL_INSN
+#undef PSEUDO_CALL_INSN
+#undef CALLBACK_TYPE
+#undef MAIN_TYPE
+#undef BTF_TYPES
diff --git a/tools/testing/selftests/bpf/verifier/bpf_st_mem.c b/tools/testing/selftests/bpf/verifier/bpf_st_mem.c
new file mode 100644
index 000000000000..ce13002c7a19
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bpf_st_mem.c
@@ -0,0 +1,99 @@
+{
+	"BPF_ST_MEM stack imm non-zero",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 42),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, -42),
+	/* if value is tracked correctly R0 is zero */
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	/* Use prog type that requires return value in range [0, 1] */
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.runs = -1,
+},
+{
+	"BPF_ST_MEM stack imm zero",
+	.insns = {
+	/* mark stack 0000 0000 */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	/* read and sum a few bytes */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -8),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -4),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_10, -1),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1),
+	/* if value is tracked correctly R0 is zero */
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	/* Use prog type that requires return value in range [0, 1] */
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.runs = -1,
+},
+{
+	"BPF_ST_MEM stack imm zero, variable offset",
+	.insns = {
+	/* set fp[-16], fp[-24] to zeros */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -24, 0),
+	/* r0 = random value in range [-32, -15] */
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_0, 16, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_SUB, BPF_REG_0, 32),
+	/* fp[r0] = 0, make a variable offset write of zero,
+	 *             this should preserve zero marks on stack.
+	 */
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_10),
+	BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0),
+	/* r0 = fp[-20], if variable offset write was tracked correctly
+	 *               r0 would be a known zero.
+	 */
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_10, -20),
+	/* Would fail return code verification if r0 range is not tracked correctly. */
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	/* Use prog type that requires return value in range [0, 1] */
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.runs = -1,
+},
+{
+	"BPF_ST_MEM stack imm sign",
+	/* Check if verifier correctly reasons about sign of an
+	 * immediate spilled to stack by BPF_ST instruction.
+	 *
+	 *   fp[-8] = -44;
+	 *   r0 = fp[-8];
+	 *   if r0 s< 0 goto ret0;
+	 *   r0 = -1;
+	 *   exit;
+	 * ret0:
+	 *   r0 = 0;
+	 *   exit;
+	 */
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, -44),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+	BPF_JMP_IMM(BPF_JSLT, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, -1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	/* Use prog type that requires return value in range [0, 1] */
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.result = VERBOSE_ACCEPT,
+	.runs = -1,
+	.errstr = "0: (7a) *(u64 *)(r10 -8) = -44        ; R10=fp0 fp-8=-44\
+	2: (c5) if r0 s< 0x0 goto pc+2\
+	R0=-44",
+},
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
new file mode 100644
index 000000000000..c8d640802cce
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -0,0 +1,2435 @@
+{
+	"calls: invalid kfunc call not eliminated",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result  = REJECT,
+	.errstr = "invalid kernel function call not eliminated in verifier pass",
+},
+{
+	"calls: invalid kfunc call unreachable",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 0, 2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result  = ACCEPT,
+},
+{
+	"calls: invalid kfunc call: ptr_to_mem to struct with non-scalar",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "arg#0 pointer type STRUCT prog_test_fail1 must point to scalar",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_fail1", 2 },
+	},
+},
+{
+	"calls: invalid kfunc call: ptr_to_mem to struct with nesting depth > 4",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "max struct nesting depth exceeded\narg#0 pointer type STRUCT prog_test_fail2",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_fail2", 2 },
+	},
+},
+{
+	"calls: invalid kfunc call: ptr_to_mem to struct with FAM",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "arg#0 pointer type STRUCT prog_test_fail3 must point to scalar",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_fail3", 2 },
+	},
+},
+{
+	"calls: invalid kfunc call: reg->type != PTR_TO_CTX",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "arg#0 expected pointer to ctx, but got fp",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_pass_ctx", 2 },
+	},
+},
+{
+	"calls: invalid kfunc call: void * not allowed in func proto without mem size arg",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "arg#0 pointer type UNKNOWN  must point to scalar",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_mem_len_fail1", 2 },
+	},
+},
+{
+	"calls: trigger reg2btf_ids[reg->type] for reg->type > __BPF_REG_TYPE_MAX",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "Possibly NULL pointer passed to trusted arg0",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_release", 5 },
+	},
+},
+{
+	"calls: invalid kfunc call: reg->off must be zero when passed to release kfunc",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "R1 must have zero offset when passed to release func",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_memb_release", 8 },
+	},
+},
+{
+	"calls: invalid kfunc call: don't match first member type when passed to release kfunc",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "kernel function bpf_kfunc_call_memb1_release args#0 expected pointer",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_memb_acquire", 1 },
+		{ "bpf_kfunc_call_memb1_release", 5 },
+	},
+},
+{
+	"calls: invalid kfunc call: PTR_TO_BTF_ID with negative offset",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -4),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_offset", 9 },
+		{ "bpf_kfunc_call_test_release", 12 },
+	},
+	.result_unpriv = REJECT,
+	.result = REJECT,
+	.errstr = "ptr R1 off=-4 disallowed",
+},
+{
+	"calls: invalid kfunc call: PTR_TO_BTF_ID with variable offset",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_0, 4),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_release", 9 },
+		{ "bpf_kfunc_call_test_release", 13 },
+		{ "bpf_kfunc_call_test_release", 17 },
+	},
+	.result_unpriv = REJECT,
+	.result = REJECT,
+	.errstr = "variable ptr_ access var_off=(0x0; 0x7) disallowed",
+},
+{
+	"calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_ref", 8 },
+		{ "bpf_kfunc_call_test_ref", 10 },
+	},
+	.result_unpriv = REJECT,
+	.result = REJECT,
+	.errstr = "R1 must be",
+},
+{
+	"calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_ref", 8 },
+		{ "bpf_kfunc_call_test_release", 10 },
+	},
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"calls: invalid kfunc call: must provide (attach_prog_fd, btf_id) pair when freplace",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_EXT,
+	.result = REJECT,
+	.errstr = "Tracing programs must provide btf_id",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_dynptr_from_skb", 0 },
+	},
+},
+{
+	"calls: basic sanity",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+},
+{
+	"calls: not on unprivileged",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"calls: div by 0 in subprog",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV32_IMM(BPF_REG_2, 0),
+	BPF_MOV32_IMM(BPF_REG_3, 1),
+	BPF_ALU32_REG(BPF_DIV, BPF_REG_3, BPF_REG_2),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"calls: multiple ret types in subprog 1",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV32_IMM(BPF_REG_0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "R0 invalid mem access 'scalar'",
+},
+{
+	"calls: multiple ret types in subprog 2",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 9),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_6,
+		    offsetof(struct __sk_buff, data)),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 64),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 16 },
+	.result = REJECT,
+	.errstr = "R0 min value is outside of the allowed memory range",
+},
+{
+	"calls: overlapping caller/callee",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "last insn is not an exit or jmp",
+	.result = REJECT,
+},
+{
+	"calls: wrong recursive calls",
+	.insns = {
+	BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "jump out of range",
+	.result = REJECT,
+},
+{
+	"calls: wrong src reg",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 3, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "BPF_CALL uses reserved fields",
+	.result = REJECT,
+},
+{
+	"calls: wrong off value",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, -1, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "BPF_CALL uses reserved fields",
+	.result = REJECT,
+},
+{
+	"calls: jump back loop",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "the call stack of 9 frames is too deep",
+	.result = REJECT,
+},
+{
+	"calls: conditional call",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "jump out of range",
+	.result = REJECT,
+},
+{
+	"calls: conditional call 2",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+},
+{
+	"calls: conditional call 3",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 4),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "back-edge from insn",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"calls: conditional call 4",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -5),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+},
+{
+	"calls: conditional call 5",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -6),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"calls: conditional call 6",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -3),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "infinite loop detected",
+	.result = REJECT,
+},
+{
+	"calls: using r0 returned by callee",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+},
+{
+	"calls: using uninit r0 from callee",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"calls: callee is using r1",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_ACT,
+	.result = ACCEPT,
+	.retval = TEST_DATA_LEN,
+},
+{
+	"calls: callee using args1",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = POINTER_VALUE,
+},
+{
+	"calls: callee using wrong args2",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "R2 !read_ok",
+	.result = REJECT,
+},
+{
+	"calls: callee using two args",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_6,
+		    offsetof(struct __sk_buff, len)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_6,
+		    offsetof(struct __sk_buff, len)),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = TEST_DATA_LEN + TEST_DATA_LEN - ETH_HLEN - ETH_HLEN,
+},
+{
+	"calls: callee changing pkt pointers",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, offsetof(struct xdp_md, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1,
+		    offsetof(struct xdp_md, data_end)),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_8, BPF_REG_7, 2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	/* clear_all_pkt_pointers() has to walk all frames
+	 * to make sure that pkt pointers in the caller
+	 * are cleared when callee is calling a helper that
+	 * adjusts packet size
+	 */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_xdp_adjust_head),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "R6 invalid mem access 'scalar'",
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: ptr null check in subprog",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.fixup_map_hash_48b = { 3 },
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"calls: two calls with args",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = TEST_DATA_LEN + TEST_DATA_LEN,
+},
+{
+	"calls: calls with stack arith",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -64),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 42,
+},
+{
+	"calls: calls with misaligned stack access",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -61),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -63),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+	.errstr = "misaligned stack access",
+	.result = REJECT,
+},
+{
+	"calls: calls control flow, jump test",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 43),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 43,
+},
+{
+	"calls: calls control flow, jump test 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 43),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "jump out of range from insn 1 to 4",
+	.result = REJECT,
+},
+{
+	"calls: two calls with bad jump",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, -3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "jump out of range from insn 11 to 9",
+	.result = REJECT,
+},
+{
+	"calls: recursive call. test1",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "the call stack of 9 frames is too deep",
+	.result = REJECT,
+},
+{
+	"calls: recursive call. test2",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "the call stack of 9 frames is too deep",
+	.result = REJECT,
+},
+{
+	"calls: unreachable code",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "unreachable insn 6",
+	.result = REJECT,
+},
+{
+	"calls: invalid call",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -4),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "invalid destination",
+	.result = REJECT,
+},
+{
+	"calls: invalid call 2",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 0x7fffffff),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "invalid destination",
+	.result = REJECT,
+},
+{
+	"calls: jumping across function bodies. test1",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "jump out of range",
+	.result = REJECT,
+},
+{
+	"calls: jumping across function bodies. test2",
+	.insns = {
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "jump out of range",
+	.result = REJECT,
+},
+{
+	"calls: call without exit",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -2),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "not an exit",
+	.result = REJECT,
+},
+{
+	"calls: call into middle of ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "last insn",
+	.result = REJECT,
+},
+{
+	"calls: call into middle of other call",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "last insn",
+	.result = REJECT,
+},
+{
+	"calls: subprog call with ld_abs in main prog",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_LD_ABS(BPF_B, 0),
+	BPF_LD_ABS(BPF_H, 0),
+	BPF_LD_ABS(BPF_W, 0),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+	BPF_LD_ABS(BPF_B, 0),
+	BPF_LD_ABS(BPF_H, 0),
+	BPF_LD_ABS(BPF_W, 0),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_3, 2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_vlan_push),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+},
+{
+	"calls: two calls with bad fallthrough",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.errstr = "not an exit",
+	.result = REJECT,
+},
+{
+	"calls: two calls with stack read",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 6),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = ACCEPT,
+},
+{
+	"calls: two calls with stack write",
+	.insns = {
+	/* main prog */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 7),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_8),
+	/* write into stack frame of main prog */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* read from stack frame of main prog */
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = ACCEPT,
+},
+{
+	"calls: stack overflow using two frames (pre-call access)",
+	.insns = {
+	/* prog 1 */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* prog 2 */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "combined stack size",
+	.result = REJECT,
+},
+{
+	"calls: stack overflow using two frames (post-call access)",
+	.insns = {
+	/* prog 1 */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 2),
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_EXIT_INSN(),
+
+	/* prog 2 */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "combined stack size",
+	.result = REJECT,
+},
+{
+	"calls: stack depth check using three frames. test1",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+	BPF_EXIT_INSN(),
+	/* B */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	/* stack_main=32, stack_A=256, stack_B=64
+	 * and max(main+A, main+A+B) < 512
+	 */
+	.result = ACCEPT,
+},
+{
+	"calls: stack depth check using three frames. test2",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 5), /* call B */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -32, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+	BPF_EXIT_INSN(),
+	/* B */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -3), /* call A */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	/* stack_main=32, stack_A=64, stack_B=256
+	 * and max(main+A, main+A+B) < 512
+	 */
+	.result = ACCEPT,
+},
+{
+	"calls: stack depth check using three frames. test3",
+	.insns = {
+	/* main */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 8), /* call B */
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_6, 0, 1),
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -64, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 10, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -224, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -3),
+	/* B */
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 2, 1),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, -6), /* call A */
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -256, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	/* stack_main=64, stack_A=224, stack_B=256
+	 * and max(main+A, main+A+B) > 512
+	 */
+	.errstr = "combined stack",
+	.result = REJECT,
+},
+{
+	"calls: stack depth check using three frames. test4",
+	/* void main(void) {
+	 *   func1(0);
+	 *   func1(1);
+	 *   func2(1);
+	 * }
+	 * void func1(int alloc_or_recurse) {
+	 *   if (alloc_or_recurse) {
+	 *     frame_pointer[-300] = 1;
+	 *   } else {
+	 *     func2(alloc_or_recurse);
+	 *   }
+	 * }
+	 * void func2(int alloc_or_recurse) {
+	 *   if (alloc_or_recurse) {
+	 *     frame_pointer[-300] = 1;
+	 *   }
+	 * }
+	 */
+	.insns = {
+	/* main */
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 6), /* call A */
+	BPF_MOV64_IMM(BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 4), /* call A */
+	BPF_MOV64_IMM(BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 7), /* call B */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
+	BPF_EXIT_INSN(),
+	/* B */
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_ST_MEM(BPF_B, BPF_REG_10, -300, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = REJECT,
+	.errstr = "combined stack",
+},
+{
+	"calls: stack depth check using three frames. test5",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call A */
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call B */
+	BPF_EXIT_INSN(),
+	/* B */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call C */
+	BPF_EXIT_INSN(),
+	/* C */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call D */
+	BPF_EXIT_INSN(),
+	/* D */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call E */
+	BPF_EXIT_INSN(),
+	/* E */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call F */
+	BPF_EXIT_INSN(),
+	/* F */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call G */
+	BPF_EXIT_INSN(),
+	/* G */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call H */
+	BPF_EXIT_INSN(),
+	/* H */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "call stack",
+	.result = REJECT,
+},
+{
+	"calls: stack depth check in dead code",
+	.insns = {
+	/* main */
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call A */
+	BPF_EXIT_INSN(),
+	/* A */
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 2), /* call B */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* B */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call C */
+	BPF_EXIT_INSN(),
+	/* C */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call D */
+	BPF_EXIT_INSN(),
+	/* D */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call E */
+	BPF_EXIT_INSN(),
+	/* E */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call F */
+	BPF_EXIT_INSN(),
+	/* F */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call G */
+	BPF_EXIT_INSN(),
+	/* G */
+	BPF_RAW_INSN(BPF_JMP|BPF_CALL, 0, 1, 0, 1), /* call H */
+	BPF_EXIT_INSN(),
+	/* H */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "call stack",
+	.result = REJECT,
+},
+{
+	"calls: spill into caller stack frame",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "cannot spill",
+	.result = REJECT,
+},
+{
+	"calls: write into caller stack frame",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = ACCEPT,
+	.retval = 42,
+},
+{
+	"calls: write into callee stack frame",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, -8),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.errstr = "cannot return stack pointer",
+	.result = REJECT,
+},
+{
+	"calls: two calls with stack write and void return",
+	.insns = {
+	/* main prog */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* write into stack frame of main prog */
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_EXIT_INSN(), /* void return */
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = ACCEPT,
+},
+{
+	"calls: ambiguous return value",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "allowed for",
+	.result_unpriv = REJECT,
+	.errstr = "R0 !read_ok",
+	.result = REJECT,
+},
+{
+	"calls: two calls that return map_value",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 8),
+
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	/* fetch second map_value_ptr from the stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -16),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	/* call 3rd function twice */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* first time with fp-8 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	/* second time with fp-16 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	/* lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr into stack frame of main prog */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(), /* return 0 */
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.fixup_map_hash_8b = { 23 },
+	.result = ACCEPT,
+},
+{
+	"calls: two calls that return map_value with bool condition",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	/* call 3rd function twice */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* first time with fp-8 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	/* second time with fp-16 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+	/* fetch second map_value_ptr from the stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	/* lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(), /* return 0 */
+	/* write map_value_ptr into stack frame of main prog */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(), /* return 1 */
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.fixup_map_hash_8b = { 23 },
+	.result = ACCEPT,
+},
+{
+	"calls: two calls that return map_value with incorrect bool check",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	/* call 3rd function twice */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* first time with fp-8 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 9),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	/* second time with fp-16 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	/* fetch second map_value_ptr from the stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_7, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	/* lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(), /* return 0 */
+	/* write map_value_ptr into stack frame of main prog */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(), /* return 1 */
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.fixup_map_hash_8b = { 23 },
+	.result = REJECT,
+	.errstr = "R0 invalid mem access 'scalar'",
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "invalid read from stack R7 off=-16 size=8",
+},
+{
+	"calls: two calls that receive map_value via arg=ptr_stack_of_caller. test1",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* 1st lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+
+	/* 2nd lookup from map */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
+		     BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-16 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+
+	/* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),  /* 34 */
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* if arg2 == 1 do *arg1 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+	/* if arg4 == 1 do *arg3 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 12, 22 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=8 off=2 size=8",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: two calls that receive map_value via arg=ptr_stack_of_caller. test2",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* 1st lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+
+	/* 2nd lookup from map */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), /* 20 */
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, /* 24 */
+		     BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-16 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+
+	/* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), /* 30 */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),  /* 34 */
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* if arg2 == 1 do *arg1 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+	/* if arg4 == 1 do *arg3 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 12, 22 },
+	.result = ACCEPT,
+},
+{
+	"calls: two jumps that receive map_value via arg=ptr_stack_of_jumper. test3",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* 1st lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -24, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+
+	/* 2nd lookup from map */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -24),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_9, 0),  // 26
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* write map_value_ptr into stack frame of main prog at fp-16 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+
+	/* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), // 30
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), // 34
+	BPF_JMP_IMM(BPF_JA, 0, 0, -30),
+
+	/* subprog 2 */
+	/* if arg2 == 1 do *arg1 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+	/* if arg4 == 1 do *arg3 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -8),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 12, 22 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=8 off=2 size=8",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: two calls that receive map_value_ptr_or_null via arg. test1",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* 1st lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+
+	/* 2nd lookup from map */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+
+	/* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* if arg2 == 1 do *arg1 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+	/* if arg4 == 1 do *arg3 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 12, 22 },
+	.result = ACCEPT,
+},
+{
+	"calls: two calls that receive map_value_ptr_or_null via arg. test2",
+	.insns = {
+	/* main prog */
+	/* pass fp-16, fp-8 into a function */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_2),
+	/* 1st lookup from map */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+
+	/* 2nd lookup from map */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr_or_null into stack frame of main prog at fp-16 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+
+	/* call 3rd func with fp-8, 0|1, fp-16, 0|1 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_9),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* subprog 2 */
+	/* if arg2 == 1 do *arg1 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 1, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+
+	/* if arg4 == 0 do *arg3 = 0 */
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_4, 0, 2),
+	/* fetch map_value_ptr from the stack of this function */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	/* write into map value */
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_8b = { 12, 22 },
+	.result = REJECT,
+	.errstr = "R0 invalid mem access 'scalar'",
+},
+{
+	"calls: pkt_ptr spill into caller stack",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	/* spill unchecked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+	/* now the pkt range is verified, read pkt_ptr from stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.retval = POINTER_VALUE,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 2",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	/* Marking is still kept, but not in all cases safe. */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	/* spill unchecked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+	/* now the pkt range is verified, read pkt_ptr from stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "invalid access to packet",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 3",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+	/* Marking is still kept and safe here. */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	/* spill unchecked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* now the pkt range is verified, read pkt_ptr from stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0),
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 4",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2),
+	/* Check marking propagated. */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_ST_MEM(BPF_W, BPF_REG_4, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	/* spill unchecked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 5",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+	/* spill checked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "same insn cannot be used with different",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 6",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+	/* spill checked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "R4 invalid mem access",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 7",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+	/* spill checked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "R4 invalid mem access",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 8",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3),
+	/* spill checked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: pkt_ptr spill into caller stack 9",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_JMP_REG(BPF_JLE, BPF_REG_0, BPF_REG_3, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_4, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	/* spill unchecked pkt_ptr into stack of caller */
+	BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2),
+	BPF_MOV64_IMM(BPF_REG_5, 1),
+	/* don't read back pkt_ptr from stack here */
+	/* write 4 bytes into packet */
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "invalid access to packet",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"calls: caller stack init to zero or map_value_or_null",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	/* fetch map_value_or_null or const_zero from stack */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1),
+	/* store into map_value */
+	BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+
+	/* subprog 1 */
+	/* if (ctx == 0) return; */
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 8),
+	/* else bpf_map_lookup() and *(fp - 8) = r0 */
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_2),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	/* write map_value_ptr_or_null into stack frame of main prog at fp-8 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 13 },
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_XDP,
+},
+{
+	"calls: stack init to zero and pruning",
+	.insns = {
+	/* first make allocated_stack 16 byte */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, 0),
+	/* now fork the execution such that the false branch
+	 * of JGT insn will be verified second and it skisp zero
+	 * init of fp-8 stack slot. If stack liveness marking
+	 * is missing live_read marks from call map_lookup
+	 * processing then pruning will incorrectly assume
+	 * that fp-8 stack slot was unused in the fall-through
+	 * branch and will accept the program incorrectly
+	 */
+	BPF_EMIT_CALL(BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 2, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 7 },
+	.errstr_unpriv = "invalid read from stack R2 off -8+0 size 8",
+	.result_unpriv = REJECT,
+	/* in privileged mode reads from uninitialized stack locations are permitted */
+	.result = ACCEPT,
+},
+{
+	"calls: ctx read at start of subprog",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 5),
+	BPF_JMP_REG(BPF_JSGT, BPF_REG_0, BPF_REG_0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_1, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"calls: cross frame pruning",
+	.insns = {
+	/* r8 = !!random();
+	 * call pruner()
+	 * if (r8)
+	 *     do something bad;
+	 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_9, BPF_REG_1, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"calls: cross frame pruning - liveness propagation",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+/* Make sure that verifier.c:states_equal() considers IDs from all
+ * frames when building 'idmap' for check_ids().
+ */
+{
+	"calls: check_ids() across call boundary",
+	.insns = {
+	/* Function main() */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	/* fp[-24] = map_lookup_elem(...) ; get a MAP_VALUE_PTR_OR_NULL with some ID */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1,
+		      0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_0, -24),
+	/* fp[-32] = map_lookup_elem(...) ; get a MAP_VALUE_PTR_OR_NULL with some ID */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1,
+		      0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_0, -32),
+	/* call foo(&fp[-24], &fp[-32])   ; both arguments have IDs in the current
+	 *                                ; stack frame
+	 */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -24),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
+	BPF_CALL_REL(2),
+	/* exit 0 */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* Function foo()
+	 *
+	 * r9 = &frame[0].fp[-24]  ; save arguments in the callee saved registers,
+	 * r8 = &frame[0].fp[-32]  ; arguments are pointers to pointers to map value
+	 */
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_2),
+	/* r7 = ktime_get_ns() */
+	BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	/* r6 = ktime_get_ns() */
+	BPF_EMIT_CALL(BPF_FUNC_ktime_get_ns),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	/* if r6 > r7 goto +1      ; no new information about the state is derived from
+	 *                         ; this check, thus produced verifier states differ
+	 *                         ; only in 'insn_idx'
+	 * r9 = r8
+	 */
+	BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 1),
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_8),
+	/* r9 = *r9                ; verifier gets to this point via two paths:
+	 *                         ; (I) one including r9 = r8, verified first;
+	 *                         ; (II) one excluding r9 = r8, verified next.
+	 *                         ; After load of *r9 to r9 the frame[0].fp[-24].id == r9.id.
+	 *                         ; Suppose that checkpoint is created here via path (I).
+	 *                         ; When verifying via (II) the r9.id must be compared against
+	 *                         ; frame[0].fp[-24].id, otherwise (I) and (II) would be
+	 *                         ; incorrectly deemed equivalent.
+	 * if r9 == 0 goto <exit>
+	 */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_9, BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 0, 1),
+	/* r8 = *r8                ; read map value via r8, this is not safe
+	 * r0 = *r8                ; because r8 might be not equal to r9.
+	 */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_8, BPF_REG_8, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_8, 0),
+	/* exit 0 */
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.flags = BPF_F_TEST_STATE_FREQ,
+	.fixup_map_hash_8b = { 3, 9 },
+	.result = REJECT,
+	.errstr = "R8 invalid mem access 'map_value_or_null'",
+	.result_unpriv = REJECT,
+	.errstr_unpriv = "",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"calls: several args with ref_obj_id",
+	.insns = {
+	/* Reserve at least sizeof(struct iphdr) bytes in the ring buffer.
+	 * With a smaller size, the verifier would reject the call to
+	 * bpf_tcp_raw_gen_syncookie_ipv4 before we can reach the
+	 * ref_obj_id error.
+	 */
+	BPF_MOV64_IMM(BPF_REG_2, 20),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
+	/* if r0 == 0 goto <exit> */
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_tcp_raw_gen_syncookie_ipv4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_ringbuf = { 2 },
+	.result = REJECT,
+	.errstr = "more than one arg with ref_obj_id",
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
new file mode 100644
index 000000000000..a2b006e2fd06
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ctx_sk_lookup.c
@@ -0,0 +1,532 @@
+{
+	"valid 1,2,4,8-byte reads from bpf_sk_lookup",
+	.insns = {
+		/* 1-byte read from family field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family) + 3),
+		/* 2-byte read from family field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family) + 2),
+		/* 4-byte read from family field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family)),
+
+		/* 1-byte read from protocol field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol) + 3),
+		/* 2-byte read from protocol field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol) + 2),
+		/* 4-byte read from protocol field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol)),
+
+		/* 1-byte read from remote_ip4 field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4) + 3),
+		/* 2-byte read from remote_ip4 field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4) + 2),
+		/* 4-byte read from remote_ip4 field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4)),
+
+		/* 1-byte read from remote_ip6 field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 3),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 5),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 7),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 9),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 11),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 13),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 15),
+		/* 2-byte read from remote_ip6 field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 2),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 6),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 10),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 14),
+		/* 4-byte read from remote_ip6 field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6)),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 4),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 8),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6) + 12),
+
+		/* 1-byte read from remote_port field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port) + 3),
+		/* 2-byte read from remote_port field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port) + 2),
+		/* 4-byte read from remote_port field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port)),
+
+		/* 1-byte read from local_ip4 field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4) + 3),
+		/* 2-byte read from local_ip4 field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4) + 2),
+		/* 4-byte read from local_ip4 field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4)),
+
+		/* 1-byte read from local_ip6 field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 3),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 5),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 6),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 7),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 9),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 10),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 11),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 13),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 14),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 15),
+		/* 2-byte read from local_ip6 field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 2),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 6),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 10),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 14),
+		/* 4-byte read from local_ip6 field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6)),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 4),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 8),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6) + 12),
+
+		/* 1-byte read from local_port field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port) + 3),
+		/* 2-byte read from local_port field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port) + 2),
+		/* 4-byte read from local_port field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port)),
+
+		/* 1-byte read from ingress_ifindex field */
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex) + 1),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex) + 3),
+		/* 2-byte read from ingress_ifindex field */
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex) + 2),
+		/* 4-byte read from ingress_ifindex field */
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+
+		/* 8-byte read from sk field */
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, sk)),
+
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.runs = -1,
+},
+/* invalid 8-byte reads from a 4-byte fields in bpf_sk_lookup */
+{
+	"invalid 8-byte read from bpf_sk_lookup family field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, family)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup protocol field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, protocol)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup remote_ip4 field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip4)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup remote_ip6 field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_ip6)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup remote_port field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, remote_port)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup local_ip4 field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip4)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup local_ip6 field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_ip6)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup local_port field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, local_port)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 8-byte read from bpf_sk_lookup ingress_ifindex field",
+	.insns = {
+		BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, ingress_ifindex)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+/* invalid 1,2,4-byte reads from 8-byte fields in bpf_sk_lookup */
+{
+	"invalid 4-byte read from bpf_sk_lookup sk field",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, sk)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 2-byte read from bpf_sk_lookup sk field",
+	.insns = {
+		BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, sk)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 1-byte read from bpf_sk_lookup sk field",
+	.insns = {
+		BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct bpf_sk_lookup, sk)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+/* out of bounds and unaligned reads from bpf_sk_lookup */
+{
+	"invalid 4-byte read past end of bpf_sk_lookup",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    sizeof(struct bpf_sk_lookup)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 4-byte unaligned read from bpf_sk_lookup at odd offset",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 1),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"invalid 4-byte unaligned read from bpf_sk_lookup at even offset",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+/* in-bound and out-of-bound writes to bpf_sk_lookup */
+{
+	"invalid 8-byte write to bpf_sk_lookup",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+		BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 4-byte write to bpf_sk_lookup",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+		BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 2-byte write to bpf_sk_lookup",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+		BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, 0),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 1-byte write to bpf_sk_lookup",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+		BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
+{
+	"invalid 4-byte write past end of bpf_sk_lookup",
+	.insns = {
+		BPF_MOV64_IMM(BPF_REG_0, 0xcafe4a11U),
+		BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+			    sizeof(struct bpf_sk_lookup)),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_LOOKUP,
+	.expected_attach_type = BPF_SK_LOOKUP,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ctx_skb.c b/tools/testing/selftests/bpf/verifier/ctx_skb.c
new file mode 100644
index 000000000000..0b394a7f7a2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ctx_skb.c
@@ -0,0 +1,1195 @@
+{
+	"access skb fields ok",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, pkt_type)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, queue_mapping)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, protocol)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, vlan_present)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, vlan_tci)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, napi_id)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"access skb fields bad1",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"access skb fields bad2",
+	.insns = {
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, pkt_type)),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 4 },
+	.errstr = "different pointers",
+	.errstr_unpriv = "R1 pointer comparison",
+	.result = REJECT,
+},
+{
+	"access skb fields bad3",
+	.insns = {
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, pkt_type)),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -12),
+	},
+	.fixup_map_hash_8b = { 6 },
+	.errstr = "different pointers",
+	.errstr_unpriv = "R1 pointer comparison",
+	.result = REJECT,
+},
+{
+	"access skb fields bad4",
+	.insns = {
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3),
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, len)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -13),
+	},
+	.fixup_map_hash_8b = { 7 },
+	.errstr = "different pointers",
+	.errstr_unpriv = "R1 pointer comparison",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff family",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, family)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff remote_ip4",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip4)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff local_ip4",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip4)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff remote_ip6",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip6)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff local_ip6",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip6)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff remote_port",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_port)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"invalid access __sk_buff remote_port",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_port)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"valid access __sk_buff family",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, family)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff remote_ip4",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip4)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff local_ip4",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip4)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff remote_ip6",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip6[0])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip6[1])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip6[2])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_ip6[3])),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff local_ip6",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip6[0])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip6[1])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip6[2])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_ip6[3])),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff remote_port",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, remote_port)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"valid access __sk_buff remote_port",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, local_port)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"invalid access of tc_classid for SK_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, tc_classid)),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+	.errstr = "invalid bpf_context access",
+},
+{
+	"invalid access of skb->mark for SK_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_EXIT_INSN(),
+	},
+	.result =  REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+	.errstr = "invalid bpf_context access",
+},
+{
+	"check skb->mark is not writeable by SK_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_EXIT_INSN(),
+	},
+	.result =  REJECT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+	.errstr = "invalid bpf_context access",
+},
+{
+	"check skb->tc_index is writeable by SK_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, tc_index)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"check skb->priority is writeable by SK_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, priority)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"direct packet read for SK_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"direct packet write for SK_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"overlapping checks for direct packet access SK_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+		    offsetof(struct __sk_buff, data_end)),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+},
+{
+	"check skb->mark is not writeable by sockets",
+	.insns = {
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.errstr_unpriv = "R1 leaks addr",
+	.result = REJECT,
+},
+{
+	"check skb->tc_index is not writeable by sockets",
+	.insns = {
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, tc_index)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.errstr_unpriv = "R1 leaks addr",
+	.result = REJECT,
+},
+{
+	"check cb access: byte",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 2),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 3),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1]) + 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1]) + 2),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1]) + 3),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2]) + 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2]) + 2),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2]) + 3),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3]) + 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3]) + 2),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3]) + 3),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 1),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 2),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 3),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0]) + 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0]) + 2),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0]) + 3),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1]) + 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1]) + 2),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1]) + 3),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2]) + 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2]) + 2),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2]) + 3),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3]) + 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3]) + 2),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3]) + 3),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4]) + 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4]) + 2),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4]) + 3),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"__sk_buff->hash, offset 0, byte store not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, hash)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"__sk_buff->tc_index, offset 3, byte store not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, tc_index) + 3),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check skb->hash byte load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash)),
+#else
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 3),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check skb->hash byte load permitted 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check skb->hash byte load permitted 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check skb->hash byte load permitted 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 3),
+#else
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash)),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check cb access: byte, wrong type",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+	"check cb access: half",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 2),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1]) + 2),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2]) + 2),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3]) + 2),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 2),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0]) + 2),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1]) + 2),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2]) + 2),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3]) + 2),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4]) + 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check cb access: half, unaligned",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check __sk_buff->hash, offset 0, half store not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, hash)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check __sk_buff->tc_index, offset 2, half store not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, tc_index) + 2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check skb->hash half load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash)),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 2),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check skb->hash half load permitted 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 2),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash)),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check skb->hash half load not permitted, unaligned 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 1),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 3),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"check skb->hash half load not permitted, unaligned 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 3),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hash) + 1),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"check cb access: half, wrong type",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+	"check cb access: word",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check cb access: word, unaligned 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0]) + 2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: word, unaligned 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: word, unaligned 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: word, unaligned 4",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4]) + 3),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: double",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"check cb access: double, unaligned 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[1])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: double, unaligned 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "misaligned context access",
+	.result = REJECT,
+	.flags = F_LOAD_WITH_STRICT_ALIGNMENT,
+},
+{
+	"check cb access: double, oob 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check cb access: double, oob 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check __sk_buff->ifindex dw store not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, ifindex)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check __sk_buff->ifindex dw load not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, ifindex)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check cb access: double, wrong type",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCK,
+},
+{
+	"check out of range skb->cb access",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0]) + 256),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.errstr_unpriv = "",
+	.result = REJECT,
+	.prog_type = BPF_PROG_TYPE_SCHED_ACT,
+},
+{
+	"write skb fields from socket prog",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[4])),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, tc_index)),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[2])),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.errstr_unpriv = "R1 leaks addr",
+	.result_unpriv = REJECT,
+},
+{
+	"write skb fields from tc_cls_act prog",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, cb[0])),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, mark)),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, tc_index)),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, tc_index)),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, cb[3])),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, tstamp)),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, tstamp)),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"check skb->data half load not permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, data)),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, data) + 2),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.errstr = "invalid bpf_context access",
+},
+{
+	"read gso_segs from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_segs)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read gso_segs from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_segs)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"write gso_segs from CGROUP_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, gso_segs)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.result_unpriv = REJECT,
+	.errstr = "invalid bpf_context access off=164 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read gso_segs from CLS",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_segs)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"read gso_size from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_size)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read gso_size from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_size)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"write gso_size from CGROUP_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, gso_size)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.result_unpriv = REJECT,
+	.errstr = "invalid bpf_context access off=176 size=4",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read gso_size from CLS",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, gso_size)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"padding after gso_size is not accessible",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetofend(struct __sk_buff, gso_size)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.result_unpriv = REJECT,
+	.errstr = "invalid bpf_context access off=180 size=4",
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"read hwtstamp from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hwtstamp)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read hwtstamp from CGROUP_SKB",
+	.insns = {
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1,
+		    offsetof(struct __sk_buff, hwtstamp)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"write hwtstamp from CGROUP_SKB",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0,
+		    offsetof(struct __sk_buff, hwtstamp)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = REJECT,
+	.result_unpriv = REJECT,
+	.errstr = "invalid bpf_context access off=184 size=8",
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+},
+{
+	"read hwtstamp from CLS",
+	.insns = {
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct __sk_buff, hwtstamp)),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+},
+{
+	"check wire_len is not readable by sockets",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct __sk_buff, wire_len)),
+		BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_context access",
+	.result = REJECT,
+},
+{
+	"check wire_len is readable by tc classifier",
+	.insns = {
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+			    offsetof(struct __sk_buff, wire_len)),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+},
+{
+	"check wire_len is not writable by tc classifier",
+	.insns = {
+		BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1,
+			    offsetof(struct __sk_buff, wire_len)),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.errstr = "invalid bpf_context access",
+	.errstr_unpriv = "R1 leaks addr",
+	.result = REJECT,
+},
+{
+       "pkt > pkt_end taken check",
+       .insns = {
+       BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,                //  0. r2 = *(u32 *)(r1 + data_end)
+                   offsetof(struct __sk_buff, data_end)),
+       BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,                //  1. r4 = *(u32 *)(r1 + data)
+                   offsetof(struct __sk_buff, data)),
+       BPF_MOV64_REG(BPF_REG_3, BPF_REG_4),                    //  2. r3 = r4
+       BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42),                  //  3. r3 += 42
+       BPF_MOV64_IMM(BPF_REG_1, 0),                            //  4. r1 = 0
+       BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2),          //  5. if r3 > r2 goto 8
+       BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14),                  //  6. r4 += 14
+       BPF_MOV64_REG(BPF_REG_1, BPF_REG_4),                    //  7. r1 = r4
+       BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 1),          //  8. if r3 > r2 goto 10
+       BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9),            //  9. r2 = *(u8 *)(r1 + 9)
+       BPF_MOV64_IMM(BPF_REG_0, 0),                            // 10. r0 = 0
+       BPF_EXIT_INSN(),                                        // 11. exit
+       },
+       .result = ACCEPT,
+       .prog_type = BPF_PROG_TYPE_SK_SKB,
+       .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+       "pkt_end < pkt taken check",
+       .insns = {
+       BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,                //  0. r2 = *(u32 *)(r1 + data_end)
+                   offsetof(struct __sk_buff, data_end)),
+       BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1,                //  1. r4 = *(u32 *)(r1 + data)
+                   offsetof(struct __sk_buff, data)),
+       BPF_MOV64_REG(BPF_REG_3, BPF_REG_4),                    //  2. r3 = r4
+       BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 42),                  //  3. r3 += 42
+       BPF_MOV64_IMM(BPF_REG_1, 0),                            //  4. r1 = 0
+       BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_2, 2),          //  5. if r3 > r2 goto 8
+       BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 14),                  //  6. r4 += 14
+       BPF_MOV64_REG(BPF_REG_1, BPF_REG_4),                    //  7. r1 = r4
+       BPF_JMP_REG(BPF_JLT, BPF_REG_2, BPF_REG_3, 1),          //  8. if r2 < r3 goto 10
+       BPF_LDX_MEM(BPF_H, BPF_REG_2, BPF_REG_1, 9),            //  9. r2 = *(u8 *)(r1 + 9)
+       BPF_MOV64_IMM(BPF_REG_0, 0),                            // 10. r0 = 0
+       BPF_EXIT_INSN(),                                        // 11. exit
+       },
+       .result = ACCEPT,
+       .prog_type = BPF_PROG_TYPE_SK_SKB,
+       .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
diff --git a/tools/testing/selftests/bpf/verifier/dead_code.c b/tools/testing/selftests/bpf/verifier/dead_code.c
new file mode 100644
index 000000000000..77207b498c6f
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/dead_code.c
@@ -0,0 +1,172 @@
+{
+	"dead code: start",
+	.insns = {
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, -4),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: mid 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: mid 2",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 4),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"dead code: end 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+	BPF_EXIT_INSN(),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: end 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 12),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: end 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 10, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 12),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -5),
+	},
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: tail of main + func",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 12),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: tail of main + two functions",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 8, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 12),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: function in the middle and mid of another func",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 7),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 3),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 12),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 7),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 7, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -5),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 7,
+},
+{
+	"dead code: middle of main before call",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 2),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 2, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 5),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"dead code: start of a function",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "loading/calling other bpf or kernel functions are allowed for",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"dead code: zero extension",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -4),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 0,
+},
diff --git a/tools/testing/selftests/bpf/verifier/direct_value_access.c b/tools/testing/selftests/bpf/verifier/direct_value_access.c
new file mode 100644
index 000000000000..c0648dc009b5
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/direct_value_access.c
@@ -0,0 +1,350 @@
+{
+	"direct map access, write test 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 4",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 5",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 32),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 6",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 40),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "R1 min value is outside of the allowed memory range",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"direct map access, write test 7",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, -1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 4, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "direct value offset of 4294967295 is not allowed",
+},
+{
+	"direct map access, write test 8",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, -1, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 9",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 4242),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value pointer",
+},
+{
+	"direct map access, write test 10",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 11",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 48),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value pointer",
+},
+{
+	"direct map access, write test 12",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "direct value offset of 536870912 is not allowed",
+},
+{
+	"direct map access, write test 13",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, (1<<29)-1),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 4),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value pointer, value_size=48 off=536870911",
+},
+{
+	"direct map access, write test 14",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 47),
+	BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+	BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1, 3 },
+	.result = ACCEPT,
+	.retval = 0xff,
+},
+{
+	"direct map access, write test 15",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+	BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+	BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1, 3 },
+	.result = ACCEPT,
+	.retval = 0xffff,
+},
+{
+	"direct map access, write test 16",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+	BPF_LD_MAP_VALUE(BPF_REG_2, 0, 47),
+	BPF_ST_MEM(BPF_H, BPF_REG_2, 0, 0xffff),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1, 3 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=48 off=47 size=2",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"direct map access, write test 17",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 46),
+	BPF_LD_MAP_VALUE(BPF_REG_2, 0, 46),
+	BPF_ST_MEM(BPF_H, BPF_REG_2, 1, 0xffff),
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1, 3 },
+	.result = REJECT,
+	.errstr = "invalid access to map value, value_size=48 off=47 size=2",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"direct map access, write test 18",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+	BPF_ST_MEM(BPF_H, BPF_REG_1, 0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_small = { 1 },
+	.result = REJECT,
+	.errstr = "R1 min value is outside of the allowed memory range",
+},
+{
+	"direct map access, write test 19",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 0),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_small = { 1 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"direct map access, write test 20",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_VALUE(BPF_REG_1, 0, 1),
+	BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_small = { 1 },
+	.result = REJECT,
+	.errstr = "invalid access to map value pointer",
+},
+{
+	"direct map access, invalid insn test 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, 1, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+	"direct map access, invalid insn test 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 1, 0, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+	"direct map access, invalid insn test 3",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, 0, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+	"direct map access, invalid insn test 4",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, 0, ~0, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+	"direct map access, invalid insn test 5",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_VALUE, ~0, ~0, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+	"direct map access, invalid insn test 6",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "BPF_LD_IMM64 uses reserved fields",
+},
+{
+	"direct map access, invalid insn test 7",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, ~0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+	"direct map access, invalid insn test 8",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, ~0, ~0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "invalid bpf_ld_imm64 insn",
+},
+{
+	"direct map access, invalid insn test 9",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64_RAW_FULL(BPF_REG_1, BPF_PSEUDO_MAP_FD, 0, 0, 0, 47),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 1 },
+	.result = REJECT,
+	.errstr = "unrecognized bpf_ld_imm64 insn",
+},
diff --git a/tools/testing/selftests/bpf/verifier/event_output.c b/tools/testing/selftests/bpf/verifier/event_output.c
new file mode 100644
index 000000000000..c5e805980409
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/event_output.c
@@ -0,0 +1,119 @@
+/* instructions used to output a skb based software event, produced
+ * from code snippet:
+ * struct TMP {
+ *  uint64_t tmp;
+ * } tt;
+ * tt.tmp = 5;
+ * bpf_perf_event_output(skb, &connection_tracking_event_map, 0,
+ *			 &tt, sizeof(tt));
+ * return 1;
+ *
+ * the bpf assembly from llvm is:
+ *        0:       b7 02 00 00 05 00 00 00         r2 = 5
+ *        1:       7b 2a f8 ff 00 00 00 00         *(u64 *)(r10 - 8) = r2
+ *        2:       bf a4 00 00 00 00 00 00         r4 = r10
+ *        3:       07 04 00 00 f8 ff ff ff         r4 += -8
+ *        4:       18 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00    r2 = 0ll
+ *        6:       b7 03 00 00 00 00 00 00         r3 = 0
+ *        7:       b7 05 00 00 08 00 00 00         r5 = 8
+ *        8:       85 00 00 00 19 00 00 00         call 25
+ *        9:       b7 00 00 00 01 00 00 00         r0 = 1
+ *       10:       95 00 00 00 00 00 00 00         exit
+ *
+ *     The reason I put the code here instead of fill_helpers is that map fixup
+ *     is against the insns, instead of filled prog.
+ */
+
+#define __PERF_EVENT_INSNS__					\
+	BPF_MOV64_IMM(BPF_REG_2, 5),				\
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8),		\
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_10),			\
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8),			\
+	BPF_LD_MAP_FD(BPF_REG_2, 0),				\
+	BPF_MOV64_IMM(BPF_REG_3, 0),				\
+	BPF_MOV64_IMM(BPF_REG_5, 8),				\
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,		\
+		     BPF_FUNC_perf_event_output),		\
+	BPF_MOV64_IMM(BPF_REG_0, 1),				\
+	BPF_EXIT_INSN(),
+{
+	"perfevent for sockops",
+	.insns = { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_SOCK_OPS,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for tc",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for lwt out",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_LWT_OUT,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for xdp",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for socket filter",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for sk_skb",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_SK_SKB,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for cgroup skb",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_CGROUP_SKB,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for cgroup dev",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_CGROUP_DEVICE,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for cgroup sysctl",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_CGROUP_SYSCTL,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"perfevent for cgroup sockopt",
+	.insns =  { __PERF_EVENT_INSNS__ },
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCKOPT,
+	.expected_attach_type = BPF_CGROUP_SETSOCKOPT,
+	.fixup_map_event_output = { 4 },
+	.result = ACCEPT,
+	.retval = 1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jit.c b/tools/testing/selftests/bpf/verifier/jit.c
new file mode 100644
index 000000000000..8bf37e5207f1
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jit.c
@@ -0,0 +1,218 @@
+{
+	"jit: lsh, rsh, arsh by 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 0xff),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 1),
+	BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 1),
+	BPF_ALU32_IMM(BPF_RSH, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0xff, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ARSH, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x7f, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: lsh, rsh, arsh by reg",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_4, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 0xff),
+	BPF_ALU64_REG(BPF_LSH, BPF_REG_1, BPF_REG_0),
+	BPF_ALU32_REG(BPF_LSH, BPF_REG_1, BPF_REG_4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0x3fc, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_RSH, BPF_REG_1, BPF_REG_4),
+	BPF_MOV64_REG(BPF_REG_4, BPF_REG_1),
+	BPF_ALU32_REG(BPF_RSH, BPF_REG_4, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0xff, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ARSH, BPF_REG_4, BPF_REG_4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: mov32 for ldimm64, 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_1, 0xfeffffffffffffffULL),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 32),
+	BPF_LD_IMM64(BPF_REG_2, 0xfeffffffULL),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: mov32 for ldimm64, 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_1, 0x1ffffffffULL),
+	BPF_LD_IMM64(BPF_REG_2, 0xffffffffULL),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: various mul tests",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_2, 0xeeff0d413122ULL),
+	BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+	BPF_LD_IMM64(BPF_REG_1, 0xefefefULL),
+	BPF_ALU64_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+	BPF_ALU64_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+	BPF_ALU64_IMM(BPF_MUL, BPF_REG_3, 0xefefef),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV32_REG(BPF_REG_2, BPF_REG_2),
+	BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+	BPF_ALU32_REG(BPF_MUL, BPF_REG_0, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+	BPF_ALU32_REG(BPF_MUL, BPF_REG_3, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_3, 0xfefefeULL),
+	BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0xefefef),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_0, 0xfefefeULL),
+	BPF_LD_IMM64(BPF_REG_2, 0x2ad4d4aaULL),
+	BPF_ALU32_IMM(BPF_MUL, BPF_REG_0, 0x2b),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_0, 0x952a7bbcULL),
+	BPF_LD_IMM64(BPF_REG_1, 0xfefefeULL),
+	BPF_LD_IMM64(BPF_REG_5, 0xeeff0d413122ULL),
+	BPF_ALU32_REG(BPF_MUL, BPF_REG_5, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_5, BPF_REG_0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: various div tests",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_2, 0xefeffeULL),
+	BPF_LD_IMM64(BPF_REG_0, 0xeeff0d413122ULL),
+	BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+	BPF_ALU64_REG(BPF_DIV, BPF_REG_0, BPF_REG_1),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_0, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_3, 0xeeff0d413122ULL),
+	BPF_ALU64_IMM(BPF_DIV, BPF_REG_3, 0xfefeeeULL),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_3, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_2, 0xaa93ULL),
+	BPF_ALU64_IMM(BPF_MOD, BPF_REG_1, 0xbeefULL),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+	BPF_LD_IMM64(BPF_REG_3, 0xbeefULL),
+	BPF_ALU64_REG(BPF_MOD, BPF_REG_1, BPF_REG_3),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LD_IMM64(BPF_REG_2, 0x5ee1dULL),
+	BPF_LD_IMM64(BPF_REG_1, 0xfefeeeULL),
+	BPF_LD_IMM64(BPF_REG_3, 0x2bULL),
+	BPF_ALU32_REG(BPF_DIV, BPF_REG_1, BPF_REG_3),
+	BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_REG(BPF_DIV, BPF_REG_1, BPF_REG_1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_MOD, BPF_REG_2, BPF_REG_2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: jsgt, jslt",
+	.insns = {
+	BPF_LD_IMM64(BPF_REG_1, 0x80000000ULL),
+	BPF_LD_IMM64(BPF_REG_2, 0x0ULL),
+	BPF_JMP_REG(BPF_JSGT, BPF_REG_1, BPF_REG_2, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_JMP_REG(BPF_JSLT, BPF_REG_2, BPF_REG_1, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: torturous jumps, imm8 nop jmp and pure jump padding",
+	.insns = { },
+	.fill_helper = bpf_fill_torturous_jumps,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"jit: torturous jumps, imm32 nop jmp and jmp_cond padding",
+	.insns = { },
+	.fill_helper = bpf_fill_torturous_jumps,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jit: torturous jumps in subprog",
+	.insns = { },
+	.fill_helper = bpf_fill_torturous_jumps,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 3,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jmp32.c b/tools/testing/selftests/bpf/verifier/jmp32.c
new file mode 100644
index 000000000000..91d83e9cb148
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jmp32.c
@@ -0,0 +1,884 @@
+{
+	"jset32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	/* reg, high bits shouldn't be tested */
+	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, -2, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 1, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { 1ULL << 63, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1ULL << 63 | 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
+	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { 1ULL << 63, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1ULL << 63 | 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset32: ignores upper bits",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_7, 0x8000000000000000),
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000000),
+	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jset32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP32_IMM(BPF_JSET, BPF_REG_7, 0x10, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x10, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"jeq32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 2,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { -2, }
+		},
+		{ .retval = 2,
+		  .data64 = { -1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jeq32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_LD_IMM64(BPF_REG_8, 0x7000000000000001),
+	BPF_JMP32_REG(BPF_JEQ, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { 2, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1ULL << 63 | 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jeq32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP32_IMM(BPF_JEQ, BPF_REG_7, 0x10, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, 0xf, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"jne32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 2,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { 1, }
+		},
+		{ .retval = 0,
+		  .data64 = { -1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jne32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+	BPF_JMP32_REG(BPF_JNE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { 1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 2, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1ULL << 63 | 2, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jne32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP32_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0x10, 1),
+	BPF_EXIT_INSN(),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"jge32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, UINT_MAX - 1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 2,
+		  .data64 = { UINT_MAX - 1, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jge32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, UINT_MAX | 1ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 0,
+		  .data64 = { INT_MAX, }
+		},
+		{ .retval = 0,
+		  .data64 = { (UINT_MAX - 1) | 2ULL << 32, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jge32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JGE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_IMM(BPF_JGE, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jgt32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JGT, BPF_REG_7, UINT_MAX - 1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX - 1, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jgt32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, (UINT_MAX - 1) | 1ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX - 1, }
+		},
+		{ .retval = 0,
+		  .data64 = { (UINT_MAX - 1) | 2ULL << 32, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jgt32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JGT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jle32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, INT_MAX, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { INT_MAX - 1, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 2,
+		  .data64 = { INT_MAX, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jle32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, (INT_MAX - 1) | 2ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { INT_MAX | 1ULL << 32, }
+		},
+		{ .retval = 2,
+		  .data64 = { INT_MAX - 2, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jle32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JLE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_IMM(BPF_JLE, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jlt32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JLT, BPF_REG_7, INT_MAX, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { INT_MAX, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 2,
+		  .data64 = { INT_MAX - 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jlt32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, INT_MAX | 2ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { INT_MAX | 1ULL << 32, }
+		},
+		{ .retval = 0,
+		  .data64 = { UINT_MAX, }
+		},
+		{ .retval = 2,
+		  .data64 = { (INT_MAX - 1) | 3ULL << 32, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jlt32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JLT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSLT, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsge32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JSGE, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { 0, }
+		},
+		{ .retval = 2,
+		  .data64 = { -1, }
+		},
+		{ .retval = 0,
+		  .data64 = { -2, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsge32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, (__u32)-1 | 2ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { -1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 0x7fffffff | 1ULL << 32, }
+		},
+		{ .retval = 0,
+		  .data64 = { -2, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsge32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JSGE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSGE, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsgt32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JSGT, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { (__u32)-2, }
+		},
+		{ .retval = 0,
+		  .data64 = { -1, }
+		},
+		{ .retval = 2,
+		  .data64 = { 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsgt32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 0,
+		  .data64 = { 0x7ffffffe, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0x1ffffffffULL, }
+		},
+		{ .retval = 2,
+		  .data64 = { 0x7fffffff, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsgt32: min/max deduction",
+	.insns = {
+	BPF_RAND_SEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, (__u32)(-2) | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JSGT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, -2, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsle32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JSLE, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { (__u32)-2, }
+		},
+		{ .retval = 2,
+		  .data64 = { -1, }
+		},
+		{ .retval = 0,
+		  .data64 = { 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsle32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffffe | 1ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { 0x7ffffffe, }
+		},
+		{ .retval = 2,
+		  .data64 = { (__u32)-1, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0x7fffffff | 2ULL << 32, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jsle32: min/max deduction",
+	.insns = {
+	BPF_RAND_UEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, 0x7ffffff0 | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JSLE, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSLE, BPF_REG_7, 0x7ffffff0, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jslt32: BPF_K",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { (__u32)-2, }
+		},
+		{ .retval = 0,
+		  .data64 = { -1, }
+		},
+		{ .retval = 0,
+		  .data64 = { 1, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jslt32: BPF_X",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LD_IMM64(BPF_REG_8, 0x7fffffff | 1ULL << 32),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+	BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 3,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { 0x7ffffffe, }
+		},
+		{ .retval = 2,
+		  .data64 = { 0xffffffff, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0x7fffffff | 2ULL << 32, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jslt32: min/max deduction",
+	.insns = {
+	BPF_RAND_SEXT_R7,
+	BPF_ALU32_IMM(BPF_MOV, BPF_REG_0, 2),
+	BPF_LD_IMM64(BPF_REG_8, (__u32)(-1) | 1ULL << 32),
+	BPF_JMP32_REG(BPF_JSLT, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP32_IMM(BPF_JSLT, BPF_REG_7, -1, 1),
+	/* unpriv: nospec (inserted to prevent "R0 invalid mem access 'scalar'") */
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jgt32: range bound deduction, reg op imm",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+	BPF_JMP32_IMM(BPF_JGT, BPF_REG_0, 1, 5),
+	BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+	BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_48b = { 4 },
+	.result = ACCEPT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jgt32: range bound deduction, reg1 op reg2, reg1 unknown",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+	BPF_MOV32_IMM(BPF_REG_2, 1),
+	BPF_JMP32_REG(BPF_JGT, BPF_REG_0, BPF_REG_2, 5),
+	BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+	BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_48b = { 4 },
+	.result = ACCEPT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jle32: range bound deduction, reg1 op reg2, reg2 unknown",
+	.insns = {
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_1),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_8),
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+	BPF_EMIT_CALL(BPF_FUNC_get_cgroup_classid),
+	BPF_MOV32_IMM(BPF_REG_2, 1),
+	BPF_JMP32_REG(BPF_JLE, BPF_REG_2, BPF_REG_0, 5),
+	BPF_MOV32_REG(BPF_REG_6, BPF_REG_0),
+	BPF_ALU64_IMM(BPF_LSH, BPF_REG_6, 32),
+	BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 32),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_6),
+	BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0),
+	BPF_MOV32_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_hash_48b = { 4 },
+	.result = ACCEPT,
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jeq32/jne32: bounds checking",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_6, 563),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
+	BPF_ALU64_IMM(BPF_NEG, BPF_REG_2, 0),
+	BPF_ALU32_REG(BPF_OR, BPF_REG_2, BPF_REG_6),
+	BPF_JMP32_IMM(BPF_JNE, BPF_REG_2, 8, 5),
+	BPF_JMP_IMM(BPF_JSGE, BPF_REG_2, 500, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jset.c b/tools/testing/selftests/bpf/verifier/jset.c
new file mode 100644
index 000000000000..e901eefd774a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jset.c
@@ -0,0 +1,167 @@
+{
+	"jset: functional",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+	/* reg, bit 63 or bit 0 set, taken */
+	BPF_LD_IMM64(BPF_REG_8, 0x8000000000000001),
+	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_EXIT_INSN(),
+
+	/* reg, bit 62, not taken */
+	BPF_LD_IMM64(BPF_REG_8, 0x4000000000000000),
+	BPF_JMP_REG(BPF_JSET, BPF_REG_7, BPF_REG_8, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	/* imm, any bit set, taken */
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, -1, 1),
+	BPF_EXIT_INSN(),
+
+	/* imm, bit 31 set, taken */
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+	BPF_EXIT_INSN(),
+
+	/* all good - return r0 == 2 */
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.runs = 7,
+	.retvals = {
+		{ .retval = 2,
+		  .data64 = { (1ULL << 63) | (1U << 31) | (1U << 0), }
+		},
+		{ .retval = 2,
+		  .data64 = { (1ULL << 63) | (1U << 31), }
+		},
+		{ .retval = 2,
+		  .data64 = { (1ULL << 31) | (1U << 0), }
+		},
+		{ .retval = 2,
+		  .data64 = { (__u32)-1, }
+		},
+		{ .retval = 2,
+		  .data64 = { ~0x4000000000000000ULL, }
+		},
+		{ .retval = 0,
+		  .data64 = { 0, }
+		},
+		{ .retval = 0,
+		  .data64 = { ~0ULL, }
+		},
+	},
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset: sign-extend",
+	.insns = {
+	BPF_DIRECT_PKT_R2,
+	BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_2, 0),
+
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_7, 0x80000000, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2,
+	.data = { 1, 0, 0, 0, 0, 0, 0, 1, },
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"jset: known const compare",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.retval = 1,
+	.result = ACCEPT,
+},
+{
+	"jset: known const compare bad",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: unknown const compare taken",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: unknown const compare not taken",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.errstr_unpriv = "!read_ok",
+	.result_unpriv = REJECT,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"jset: half-known const compare",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_ALU64_IMM(BPF_OR, BPF_REG_0, 2),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_0, 3, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.result = ACCEPT,
+},
+{
+	"jset: range",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_1, 0xff),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0xf0, 3),
+	BPF_JMP_IMM(BPF_JLT, BPF_REG_1, 0x10, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSET, BPF_REG_1, 0x10, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0x10, 1),
+	/* unpriv: nospec (inserted to prevent "R9 !read_ok") */
+	BPF_LDX_MEM(BPF_B, BPF_REG_8, BPF_REG_9, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SOCKET_FILTER,
+	.result = ACCEPT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/jump.c b/tools/testing/selftests/bpf/verifier/jump.c
new file mode 100644
index 000000000000..497fe17d2eaf
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/jump.c
@@ -0,0 +1,397 @@
+{
+	"jump test 1",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "R1 pointer comparison",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"jump test 2",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 14),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 11),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 8),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 5),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "R1 pointer comparison",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"jump test 3",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 19),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 15),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 11),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 7),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0),
+	BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56),
+	BPF_LD_MAP_FD(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_8b = { 24 },
+	.errstr_unpriv = "R1 pointer comparison",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+	.retval = -ENOENT,
+},
+{
+	"jump test 4",
+	.insns = {
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "R1 pointer comparison",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"jump test 5",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_2),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr_unpriv = "R1 pointer comparison",
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
+	"jump test 6",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 2),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+	},
+	.result = ACCEPT,
+	.retval = 2,
+},
+{
+	"jump test 7",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+	},
+	.result = ACCEPT,
+	.retval = 3,
+},
+{
+	"jump test 8",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_1, 2),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_JMP_REG(BPF_JNE, BPF_REG_0, BPF_REG_1, 16),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -20),
+	},
+	.result = ACCEPT,
+	.retval = 3,
+},
+{
+	"jump/call test 9",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "jump out of range from insn 1 to 4",
+},
+{
+	"jump/call test 10",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 16),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -20),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "last insn is not an exit or jmp",
+},
+{
+	"jump/call test 11",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 3),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 2, 26),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, -31),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 3,
+},
+{
+	"jump & dead code elimination",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_NEG, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_OR, BPF_REG_3, 32767),
+	BPF_JMP_IMM(BPF_JSGE, BPF_REG_3, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0x8000, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -32767),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 0, 1),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2,
+},
diff --git a/tools/testing/selftests/bpf/verifier/junk_insn.c b/tools/testing/selftests/bpf/verifier/junk_insn.c
new file mode 100644
index 000000000000..89d690f1992a
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/junk_insn.c
@@ -0,0 +1,45 @@
+{
+	"junk insn",
+	.insns = {
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "unknown opcode 00",
+	.result = REJECT,
+},
+{
+	"junk insn2",
+	.insns = {
+	BPF_RAW_INSN(1, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "BPF_LDX uses reserved fields",
+	.result = REJECT,
+},
+{
+	"junk insn3",
+	.insns = {
+	BPF_RAW_INSN(-1, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "unknown opcode ff",
+	.result = REJECT,
+},
+{
+	"junk insn4",
+	.insns = {
+	BPF_RAW_INSN(-1, -1, -1, -1, -1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "unknown opcode ff",
+	.result = REJECT,
+},
+{
+	"junk insn5",
+	.insns = {
+	BPF_RAW_INSN(0x7f, -1, -1, -1, -1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "BPF_ALU uses reserved fields",
+	.result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_abs.c b/tools/testing/selftests/bpf/verifier/ld_abs.c
new file mode 100644
index 000000000000..f6599d2ec22d
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_abs.c
@@ -0,0 +1,286 @@
+{
+	"ld_abs: check calling conv, r1",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R1 !read_ok",
+	.result = REJECT,
+},
+{
+	"ld_abs: check calling conv, r2",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R2 !read_ok",
+	.result = REJECT,
+},
+{
+	"ld_abs: check calling conv, r3",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_3),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R3 !read_ok",
+	.result = REJECT,
+},
+{
+	"ld_abs: check calling conv, r4",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_4, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_4),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R4 !read_ok",
+	.result = REJECT,
+},
+{
+	"ld_abs: check calling conv, r5",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_5, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_5),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "R5 !read_ok",
+	.result = REJECT,
+},
+{
+	"ld_abs: check calling conv, r7",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_MOV64_IMM(BPF_REG_7, 0),
+	BPF_LD_ABS(BPF_W, -0x200000),
+	BPF_MOV64_REG(BPF_REG_0, BPF_REG_7),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"ld_abs: tests on r6 and skb data reload helper",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+	BPF_LD_ABS(BPF_B, 0),
+	BPF_LD_ABS(BPF_H, 0),
+	BPF_LD_ABS(BPF_W, 0),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+	BPF_MOV64_IMM(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_MOV64_IMM(BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_3, 2),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_skb_vlan_push),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+	BPF_LD_ABS(BPF_B, 0),
+	BPF_LD_ABS(BPF_H, 0),
+	BPF_LD_ABS(BPF_W, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 42),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 42 /* ultimate return value */,
+},
+{
+	"ld_abs: invalid op 1",
+	.insns = {
+		BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+		BPF_LD_ABS(BPF_DW, 0),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "unknown opcode",
+},
+{
+	"ld_abs: invalid op 2",
+	.insns = {
+		BPF_MOV32_IMM(BPF_REG_0, 256),
+		BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+		BPF_LD_IND(BPF_DW, BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = REJECT,
+	.errstr = "unknown opcode",
+},
+{
+	"ld_abs: nmap reduced",
+	.insns = {
+		BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+		BPF_LD_ABS(BPF_H, 12),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 28),
+		BPF_LD_ABS(BPF_H, 12),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 26),
+		BPF_MOV32_IMM(BPF_REG_0, 18),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -64),
+		BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -64),
+		BPF_LD_IND(BPF_W, BPF_REG_7, 14),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -60),
+		BPF_MOV32_IMM(BPF_REG_0, 280971478),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
+		BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -60),
+		BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 15),
+		BPF_LD_ABS(BPF_H, 12),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0x806, 13),
+		BPF_MOV32_IMM(BPF_REG_0, 22),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -56),
+		BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -56),
+		BPF_LD_IND(BPF_H, BPF_REG_7, 14),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -52),
+		BPF_MOV32_IMM(BPF_REG_0, 17366),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -48),
+		BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_10, -48),
+		BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -52),
+		BPF_ALU32_REG(BPF_SUB, BPF_REG_0, BPF_REG_7),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 2),
+		BPF_MOV32_IMM(BPF_REG_0, 256),
+		BPF_EXIT_INSN(),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x08, 0x06, 0,
+		0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+		0x10, 0xbf, 0x48, 0xd6, 0x43, 0xd6,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 256,
+},
+{
+	"ld_abs: div + abs, test 1",
+	.insns = {
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+		BPF_LD_ABS(BPF_B, 3),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
+		BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
+		BPF_LD_ABS(BPF_B, 4),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+		BPF_LD_IND(BPF_B, BPF_REG_8, -70),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		10, 20, 30, 40, 50,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 10,
+},
+{
+	"ld_abs: div + abs, test 2",
+	.insns = {
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+		BPF_LD_ABS(BPF_B, 3),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_2, 2),
+		BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_2),
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_8, BPF_REG_0),
+		BPF_LD_ABS(BPF_B, 128),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_0),
+		BPF_LD_IND(BPF_B, BPF_REG_8, -70),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		10, 20, 30, 40, 50,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"ld_abs: div + abs, test 3",
+	.insns = {
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+		BPF_LD_ABS(BPF_B, 3),
+		BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		10, 20, 30, 40, 50,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"ld_abs: div + abs, test 4",
+	.insns = {
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+		BPF_LD_ABS(BPF_B, 256),
+		BPF_ALU32_REG(BPF_DIV, BPF_REG_0, BPF_REG_7),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		10, 20, 30, 40, 50,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 0,
+},
+{
+	"ld_abs: vlan + abs, test 1",
+	.insns = { },
+	.data = {
+		0x34,
+	},
+	.fill_helper = bpf_fill_ld_abs_vlan_push_pop,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 0xbef,
+},
+{
+	"ld_abs: vlan + abs, test 2",
+	.insns = {
+		BPF_MOV64_REG(BPF_REG_6, BPF_REG_1),
+		BPF_LD_ABS(BPF_B, 0),
+		BPF_LD_ABS(BPF_H, 0),
+		BPF_LD_ABS(BPF_W, 0),
+		BPF_MOV64_REG(BPF_REG_7, BPF_REG_6),
+		BPF_MOV64_IMM(BPF_REG_6, 0),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+		BPF_MOV64_IMM(BPF_REG_2, 1),
+		BPF_MOV64_IMM(BPF_REG_3, 2),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0,
+			     BPF_FUNC_skb_vlan_push),
+		BPF_MOV64_REG(BPF_REG_6, BPF_REG_7),
+		BPF_LD_ABS(BPF_B, 0),
+		BPF_LD_ABS(BPF_H, 0),
+		BPF_LD_ABS(BPF_W, 0),
+		BPF_MOV64_IMM(BPF_REG_0, 42),
+		BPF_EXIT_INSN(),
+	},
+	.data = {
+		0x34,
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 42,
+},
+{
+	"ld_abs: jump around ld_abs",
+	.insns = { },
+	.data = {
+		10, 11,
+	},
+	.fill_helper = bpf_fill_jump_around_ld_abs,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 10,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_dw.c b/tools/testing/selftests/bpf/verifier/ld_dw.c
new file mode 100644
index 000000000000..0f18e62f0099
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_dw.c
@@ -0,0 +1,45 @@
+{
+	"ld_dw: xor semi-random 64 bit imms, test 1",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_rand_ld_dw,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 4090,
+},
+{
+	"ld_dw: xor semi-random 64 bit imms, test 2",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_rand_ld_dw,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2047,
+},
+{
+	"ld_dw: xor semi-random 64 bit imms, test 3",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_rand_ld_dw,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 511,
+},
+{
+	"ld_dw: xor semi-random 64 bit imms, test 4",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_rand_ld_dw,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 5,
+},
+{
+	"ld_dw: xor semi-random 64 bit imms, test 5",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_rand_ld_dw,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1000000 - 6,
+},
diff --git a/tools/testing/selftests/bpf/verifier/ld_imm64.c b/tools/testing/selftests/bpf/verifier/ld_imm64.c
new file mode 100644
index 000000000000..78f19c255f20
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/ld_imm64.c
@@ -0,0 +1,146 @@
+{
+	"test1 ld_imm64",
+	.insns = {
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_MOV64_IMM(BPF_REG_0, 2),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "jump into the middle of ldimm64 insn 1",
+	.errstr_unpriv = "jump into the middle of ldimm64 insn 1",
+	.result = REJECT,
+},
+{
+	"test2 ld_imm64",
+	.insns = {
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "jump into the middle of ldimm64 insn 1",
+	.errstr_unpriv = "jump into the middle of ldimm64 insn 1",
+	.result = REJECT,
+},
+{
+	"test3 ld_imm64",
+	.insns = {
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 0),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_LD_IMM64(BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test4 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test6 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+},
+{
+	"test7 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+	BPF_RAW_INSN(0, 0, 0, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"test8 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1),
+	BPF_RAW_INSN(0, 0, 0, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "uses reserved fields",
+	.result = REJECT,
+},
+{
+	"test9 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+	BPF_RAW_INSN(0, 0, 0, 1, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test10 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+	BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test11 ld_imm64",
+	.insns = {
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1),
+	BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test12 ld_imm64",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "not pointing to valid bpf_map",
+	.result = REJECT,
+},
+{
+	"test13 ld_imm64",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1),
+	BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.errstr = "invalid bpf_ld_imm64 insn",
+	.result = REJECT,
+},
+{
+	"test14 ld_imm64: reject 2nd imm != 0",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_1,
+		     BPF_PSEUDO_MAP_FD, 0, 0),
+	BPF_RAW_INSN(0, 0, 0, 0, 0xfefefe),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_hash_48b = { 1 },
+	.errstr = "unrecognized bpf_ld_imm64 insn",
+	.result = REJECT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/map_kptr.c b/tools/testing/selftests/bpf/verifier/map_kptr.c
new file mode 100644
index 000000000000..4b39f8472f9b
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/map_kptr.c
@@ -0,0 +1,444 @@
+/* Common tests */
+{
+	"map_kptr: BPF_ST imm != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "BPF_ST imm must be 0 when storing to kptr at off=0",
+},
+{
+	"map_kptr: size != bpf_size_to_bytes(BPF_DW)",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_W, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access size must be BPF_DW",
+},
+{
+	"map_kptr: map_value non-const var_off",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access cannot have variable offset",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"map_kptr: bpf_kptr_xchg non-const var_off",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_3),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 doesn't have constant offset. kptr has to be at the constant offset",
+},
+{
+	"map_kptr: unaligned boundary load/store",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 7),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr access misaligned expected=0 off=7",
+	.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+},
+{
+	"map_kptr: reject var_off != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0),
+	BPF_JMP_IMM(BPF_JLE, BPF_REG_2, 4, 1),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "variable untrusted_ptr_ access var_off=(0x0; 0x7) disallowed",
+},
+/* Tests for unreferenced PTR_TO_BTF_ID */
+{
+	"map_kptr: unref: reject btf_struct_ids_match == false",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 4),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R1 type=untrusted_ptr_prog_test_ref_kfunc expected=ptr_prog_test",
+},
+{
+	"map_kptr: unref: loaded pointer marked as untrusted",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R0 invalid mem access 'untrusted_ptr_or_null_'",
+},
+{
+	"map_kptr: unref: correct in kernel type size",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 32),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "access beyond struct prog_test_ref_kfunc at off 32 size 8",
+},
+{
+	"map_kptr: unref: inherit PTR_UNTRUSTED on struct walk",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=untrusted_ptr_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: unref: no reference state created",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = ACCEPT,
+},
+{
+	"map_kptr: unref: bpf_kptr_xchg rejected",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "off=0 kptr isn't referenced kptr",
+},
+/* Tests for referenced PTR_TO_BTF_ID */
+{
+	"map_kptr: ref: loaded pointer marked as untrusted",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_IMM(BPF_REG_1, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 8),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_this_cpu_ptr),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "R1 type=rcu_ptr_or_null_ expected=percpu_ptr_",
+},
+{
+	"map_kptr: ref: reject off != 0",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_MOV64_IMM(BPF_REG_2, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "invalid kptr access, R2 type=ptr_prog_test_ref_kfunc expected=ptr_prog_test_member",
+},
+{
+	"map_kptr: ref: reference state created and released on xchg",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8),
+	BPF_MOV64_REG(BPF_REG_7, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_7),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_kptr_xchg),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "Unreleased reference id=4 alloc_insn=20",
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 15 },
+	}
+},
+{
+	"map_kptr: ref: reject STX",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "store to referenced kptr disallowed",
+},
+{
+	"map_kptr: ref: reject ST",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_0, 8, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "store to referenced kptr disallowed",
+},
+{
+	"map_kptr: reject helper access to kptr",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_ST_MEM(BPF_W, BPF_REG_2, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_delete_elem),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_map_kptr = { 1 },
+	.result = REJECT,
+	.errstr = "kptr cannot be accessed indirectly by helper",
+},
diff --git a/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c b/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c
new file mode 100644
index 000000000000..d8a9b1a1f9a2
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/perf_event_sample_period.c
@@ -0,0 +1,59 @@
+{
+	"check bpf_perf_event_data->sample_period byte load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period) + 7),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+	"check bpf_perf_event_data->sample_period half load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+	BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period) + 6),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+	"check bpf_perf_event_data->sample_period word load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period)),
+#else
+	BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period) + 4),
+#endif
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
+{
+	"check bpf_perf_event_data->sample_period dword load permitted",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1,
+		    offsetof(struct bpf_perf_event_data, sample_period)),
+	BPF_EXIT_INSN(),
+	},
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_PERF_EVENT,
+},
diff --git a/tools/testing/selftests/bpf/verifier/precise.c b/tools/testing/selftests/bpf/verifier/precise.c
new file mode 100644
index 000000000000..59a020c35647
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/precise.c
@@ -0,0 +1,264 @@
+{
+	"precise: test 1",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_0),
+
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_9),
+	BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.fixup_map_array_48b = { 1 },
+	.result = VERBOSE_ACCEPT,
+	.errstr =
+	"mark_precise: frame0: last_idx 26 first_idx 20\
+	mark_precise: frame0: regs=r2 stack= before 25\
+	mark_precise: frame0: regs=r2 stack= before 24\
+	mark_precise: frame0: regs=r2 stack= before 23\
+	mark_precise: frame0: regs=r2 stack= before 22\
+	mark_precise: frame0: regs=r2 stack= before 20\
+	mark_precise: frame0: parent state regs=r2,r9 stack=:\
+	mark_precise: frame0: last_idx 19 first_idx 10\
+	mark_precise: frame0: regs=r2,r9 stack= before 19\
+	mark_precise: frame0: regs=r9 stack= before 18\
+	mark_precise: frame0: regs=r8,r9 stack= before 17\
+	mark_precise: frame0: regs=r0,r9 stack= before 15\
+	mark_precise: frame0: regs=r0,r9 stack= before 14\
+	mark_precise: frame0: regs=r9 stack= before 13\
+	mark_precise: frame0: regs=r9 stack= before 12\
+	mark_precise: frame0: regs=r9 stack= before 11\
+	mark_precise: frame0: regs=r9 stack= before 10\
+	mark_precise: frame0: parent state regs= stack=:",
+},
+{
+	"precise: test 2",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 1),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_FP, -8, 0),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_REG(BPF_REG_9, BPF_REG_0),
+
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8),
+	BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_MOV64_REG(BPF_REG_8, BPF_REG_0),
+
+	BPF_ALU64_REG(BPF_SUB, BPF_REG_9, BPF_REG_8), /* map_value_ptr -= map_value_ptr */
+	BPF_MOV64_REG(BPF_REG_2, BPF_REG_9),
+	BPF_JMP_IMM(BPF_JLT, BPF_REG_2, 8, 1),
+	BPF_EXIT_INSN(),
+
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), /* R2=scalar(umin=1, umax=8) */
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_FP),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_EMIT_CALL(BPF_FUNC_probe_read_kernel),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.fixup_map_array_48b = { 1 },
+	.result = VERBOSE_ACCEPT,
+	.flags = BPF_F_TEST_STATE_FREQ,
+	.errstr =
+	"26: (85) call bpf_probe_read_kernel#113\
+	mark_precise: frame0: last_idx 26 first_idx 22\
+	mark_precise: frame0: regs=r2 stack= before 25\
+	mark_precise: frame0: regs=r2 stack= before 24\
+	mark_precise: frame0: regs=r2 stack= before 23\
+	mark_precise: frame0: regs=r2 stack= before 22\
+	mark_precise: frame0: parent state regs=r2 stack=:\
+	mark_precise: frame0: last_idx 20 first_idx 20\
+	mark_precise: frame0: regs=r2 stack= before 20\
+	mark_precise: frame0: parent state regs=r2,r9 stack=:\
+	mark_precise: frame0: last_idx 19 first_idx 17\
+	mark_precise: frame0: regs=r2,r9 stack= before 19\
+	mark_precise: frame0: regs=r9 stack= before 18\
+	mark_precise: frame0: regs=r8,r9 stack= before 17\
+	mark_precise: frame0: parent state regs= stack=:",
+},
+{
+	"precise: cross frame pruning",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_IMM(BPF_REG_8, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_8, 1),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	BPF_MOV64_IMM(BPF_REG_9, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_9, 1),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 4),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_8, 1, 1),
+	BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_2, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = BPF_F_TEST_STATE_FREQ,
+	.errstr = "!read_ok",
+	.result = REJECT,
+},
+{
+	"precise: ST zero to stack insn is supported",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0),
+	/* not a register spill, so we stop precision propagation for R4 here */
+	BPF_ST_MEM(BPF_DW, BPF_REG_3, -8, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_MOV64_IMM(BPF_REG_0, -1),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = BPF_F_TEST_STATE_FREQ,
+	.errstr = "mark_precise: frame0: last_idx 5 first_idx 5\
+	mark_precise: frame0: parent state regs=r4 stack=:\
+	mark_precise: frame0: last_idx 4 first_idx 2\
+	mark_precise: frame0: regs=r4 stack= before 4\
+	mark_precise: frame0: regs=r4 stack= before 3\
+	mark_precise: frame0: last_idx 5 first_idx 5\
+	mark_precise: frame0: parent state regs=r0 stack=:\
+	mark_precise: frame0: last_idx 4 first_idx 2\
+	mark_precise: frame0: regs=r0 stack= before 4\
+	5: R0=-1 R4=0",
+	.result = VERBOSE_ACCEPT,
+	.retval = -1,
+},
+{
+	"precise: STX insn causing spi > allocated_stack",
+	.insns = {
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_prandom_u32),
+	/* make later reg spill more interesting by having somewhat known scalar */
+	BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff),
+	BPF_MOV64_REG(BPF_REG_3, BPF_REG_10),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_3, 123, 0),
+	BPF_STX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, -8),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8),
+	BPF_MOV64_IMM(BPF_REG_0, -1),
+	BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = BPF_F_TEST_STATE_FREQ,
+	.errstr = "mark_precise: frame0: last_idx 7 first_idx 7\
+	mark_precise: frame0: parent state regs=r4 stack=:\
+	mark_precise: frame0: last_idx 6 first_idx 4\
+	mark_precise: frame0: regs=r4 stack= before 6: (b7) r0 = -1\
+	mark_precise: frame0: regs=r4 stack= before 5: (79) r4 = *(u64 *)(r10 -8)\
+	mark_precise: frame0: regs= stack=-8 before 4: (7b) *(u64 *)(r3 -8) = r0\
+	mark_precise: frame0: parent state regs=r0 stack=:\
+	mark_precise: frame0: last_idx 3 first_idx 3\
+	mark_precise: frame0: regs=r0 stack= before 3: (55) if r3 != 0x7b goto pc+0\
+	mark_precise: frame0: regs=r0 stack= before 2: (bf) r3 = r10\
+	mark_precise: frame0: regs=r0 stack= before 1: (57) r0 &= 255\
+	mark_precise: frame0: parent state regs=r0 stack=:\
+	mark_precise: frame0: last_idx 0 first_idx 0\
+	mark_precise: frame0: regs=r0 stack= before 0: (85) call bpf_get_prandom_u32#7\
+	mark_precise: frame0: last_idx 7 first_idx 7\
+	mark_precise: frame0: parent state regs= stack=:",
+	.result = VERBOSE_ACCEPT,
+	.retval = -1,
+},
+{
+	"precise: mark_chain_precision for ARG_CONST_ALLOC_SIZE_OR_ZERO",
+	.insns = {
+	BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, offsetof(struct xdp_md, ingress_ifindex)),
+	BPF_LD_MAP_FD(BPF_REG_6, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_MOV64_IMM(BPF_REG_2, 1),
+	BPF_MOV64_IMM(BPF_REG_3, 0),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_4, 0, 1),
+	BPF_MOV64_IMM(BPF_REG_2, 0x1000),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_reserve),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 42),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_ringbuf_submit),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.fixup_map_ringbuf = { 1 },
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.flags = BPF_F_TEST_STATE_FREQ | F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	.errstr = "invalid access to memory, mem_size=1 off=42 size=8",
+	.result = REJECT,
+},
+{
+	"precise: program doesn't prematurely prune branches",
+	.insns = {
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0x400),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_7, 0),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_8, 0),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0x80000000),
+		BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 0x401),
+		BPF_JMP_IMM(BPF_JA, 0, 0, 0),
+		BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 2),
+		BPF_ALU64_IMM(BPF_MOD, BPF_REG_6, 1),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_9, 0),
+		BPF_JMP_REG(BPF_JLE, BPF_REG_6, BPF_REG_9, 1),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_6, 0),
+		BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_0, -4),
+		BPF_LD_MAP_FD(BPF_REG_4, 0),
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_4),
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+		BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem),
+		BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+		BPF_EXIT_INSN(),
+		BPF_ALU64_IMM(BPF_RSH, BPF_REG_6, 10),
+		BPF_ALU64_IMM(BPF_MUL, BPF_REG_6, 8192),
+		BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_0),
+		BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_6),
+		BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0),
+		BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_3, 0),
+		BPF_EXIT_INSN(),
+	},
+	.fixup_map_array_48b = { 13 },
+	.prog_type = BPF_PROG_TYPE_XDP,
+	.result = REJECT,
+	.errstr = "register with unbounded min value is not allowed",
+},
diff --git a/tools/testing/selftests/bpf/verifier/scale.c b/tools/testing/selftests/bpf/verifier/scale.c
new file mode 100644
index 000000000000..7f868d4802e0
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/scale.c
@@ -0,0 +1,18 @@
+{
+	"scale: scale test 1",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_scale,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 1,
+},
+{
+	"scale: scale test 2",
+	.insns = { },
+	.data = { },
+	.fill_helper = bpf_fill_scale,
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.result = ACCEPT,
+	.retval = 2,
+},
diff --git a/tools/testing/selftests/bpf/verifier/sleepable.c b/tools/testing/selftests/bpf/verifier/sleepable.c
new file mode 100644
index 000000000000..1f0d2bdc673f
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/sleepable.c
@@ -0,0 +1,91 @@
+{
+	"sleepable fentry accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_TRACE_FENTRY,
+	.kfunc = "bpf_fentry_test1",
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable fexit accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_TRACE_FENTRY,
+	.kfunc = "bpf_fentry_test1",
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable fmod_ret accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_MODIFY_RETURN,
+	.kfunc = "bpf_fentry_test1",
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable iter accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_TRACE_ITER,
+	.kfunc = "task",
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable lsm accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_LSM,
+	.kfunc = "bpf",
+	.expected_attach_type = BPF_LSM_MAC,
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable uprobe accept",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_KPROBE,
+	.kfunc = "bpf_fentry_test1",
+	.result = ACCEPT,
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
+{
+	"sleepable raw tracepoint reject",
+	.insns = {
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_TRACING,
+	.expected_attach_type = BPF_TRACE_RAW_TP,
+	.kfunc = "sched_switch",
+	.result = REJECT,
+	.errstr = "Only fentry/fexit/fmod_ret, lsm, iter, uprobe, and struct_ops programs can be sleepable",
+	.flags = BPF_F_SLEEPABLE,
+	.runs = -1,
+},
diff --git a/tools/testing/selftests/bpf/verifier/wide_access.c b/tools/testing/selftests/bpf/verifier/wide_access.c
new file mode 100644
index 000000000000..55af248efa93
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/wide_access.c
@@ -0,0 +1,83 @@
+#define BPF_SOCK_ADDR_STORE(field, off, res, err, flgs)	\
+{ \
+	"wide store to bpf_sock_addr." #field "[" #off "]", \
+	.insns = { \
+	BPF_MOV64_IMM(BPF_REG_0, 1), \
+	BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, \
+		    offsetof(struct bpf_sock_addr, field[off])), \
+	BPF_EXIT_INSN(), \
+	}, \
+	.result = res, \
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCK_ADDR, \
+	.expected_attach_type = BPF_CGROUP_UDP6_SENDMSG, \
+	.errstr = err, \
+	.flags = flgs, \
+}
+
+/* user_ip6[0] is u64 aligned */
+BPF_SOCK_ADDR_STORE(user_ip6, 0, ACCEPT,
+		    NULL, 0),
+BPF_SOCK_ADDR_STORE(user_ip6, 1, REJECT,
+		    "invalid bpf_context access off=12 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(user_ip6, 2, ACCEPT,
+		    NULL, 0),
+BPF_SOCK_ADDR_STORE(user_ip6, 3, REJECT,
+		    "invalid bpf_context access off=20 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+
+/* msg_src_ip6[0] is _not_ u64 aligned */
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 0, REJECT,
+		    "invalid bpf_context access off=44 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 1, ACCEPT,
+		    NULL, 0),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 2, REJECT,
+		    "invalid bpf_context access off=52 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_STORE(msg_src_ip6, 3, REJECT,
+		    "invalid bpf_context access off=56 size=8", 0),
+
+#undef BPF_SOCK_ADDR_STORE
+
+#define BPF_SOCK_ADDR_LOAD(field, off, res, err, flgs)	\
+{ \
+	"wide load from bpf_sock_addr." #field "[" #off "]", \
+	.insns = { \
+	BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, \
+		    offsetof(struct bpf_sock_addr, field[off])), \
+	BPF_MOV64_IMM(BPF_REG_0, 1), \
+	BPF_EXIT_INSN(), \
+	}, \
+	.result = res, \
+	.prog_type = BPF_PROG_TYPE_CGROUP_SOCK_ADDR, \
+	.expected_attach_type = BPF_CGROUP_UDP6_SENDMSG, \
+	.errstr = err, \
+	.flags = flgs, \
+}
+
+/* user_ip6[0] is u64 aligned */
+BPF_SOCK_ADDR_LOAD(user_ip6, 0, ACCEPT,
+		   NULL, 0),
+BPF_SOCK_ADDR_LOAD(user_ip6, 1, REJECT,
+		   "invalid bpf_context access off=12 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(user_ip6, 2, ACCEPT,
+		   NULL, 0),
+BPF_SOCK_ADDR_LOAD(user_ip6, 3, REJECT,
+		   "invalid bpf_context access off=20 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+
+/* msg_src_ip6[0] is _not_ u64 aligned */
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 0, REJECT,
+		   "invalid bpf_context access off=44 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 1, ACCEPT,
+		   NULL, 0),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 2, REJECT,
+		   "invalid bpf_context access off=52 size=8",
+		    F_NEEDS_EFFICIENT_UNALIGNED_ACCESS),
+BPF_SOCK_ADDR_LOAD(msg_src_ip6, 3, REJECT,
+		   "invalid bpf_context access off=56 size=8", 0),
+
+#undef BPF_SOCK_ADDR_LOAD
diff --git a/tools/testing/selftests/bpf/verify_sig_setup.sh b/tools/testing/selftests/bpf/verify_sig_setup.sh
new file mode 100755
index 000000000000..09179fb551f0
--- /dev/null
+++ b/tools/testing/selftests/bpf/verify_sig_setup.sh
@@ -0,0 +1,136 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+set -u
+set -o pipefail
+
+VERBOSE="${SELFTESTS_VERBOSE:=0}"
+LOG_FILE="$(mktemp /tmp/verify_sig_setup.log.XXXXXX)"
+
+x509_genkey_content="\
+[ req ]
+default_bits = 2048
+distinguished_name = req_distinguished_name
+prompt = no
+string_mask = utf8only
+x509_extensions = myexts
+
+[ req_distinguished_name ]
+CN = eBPF Signature Verification Testing Key
+
+[ myexts ]
+basicConstraints=critical,CA:FALSE
+keyUsage=digitalSignature
+subjectKeyIdentifier=hash
+authorityKeyIdentifier=keyid
+"
+
+usage()
+{
+	echo "Usage: $0 <setup|cleanup <existing_tmp_dir>"
+	exit 1
+}
+
+genkey()
+{
+	local tmp_dir="$1"
+
+	echo "${x509_genkey_content}" > ${tmp_dir}/x509.genkey
+
+	openssl req -new -nodes -utf8 -sha256 -days 36500 \
+			-batch -x509 -config ${tmp_dir}/x509.genkey \
+			-outform PEM -out ${tmp_dir}/signing_key.pem \
+			-keyout ${tmp_dir}/signing_key.pem 2>&1
+
+	openssl x509 -in ${tmp_dir}/signing_key.pem -out \
+		${tmp_dir}/signing_key.der -outform der
+}
+
+setup()
+{
+	local tmp_dir="$1"
+
+	genkey "${tmp_dir}"
+	key_id=$(cat ${tmp_dir}/signing_key.der | keyctl padd asymmetric ebpf_testing_key @s)
+	keyring_id=$(keyctl newring ebpf_testing_keyring @s)
+	keyctl link $key_id $keyring_id
+}
+
+cleanup() {
+	local tmp_dir="$1"
+
+	keyctl unlink $(keyctl search @s asymmetric ebpf_testing_key) @s
+	keyctl unlink $(keyctl search @s keyring ebpf_testing_keyring) @s
+	rm -rf ${tmp_dir}
+}
+
+fsverity_create_sign_file() {
+	local tmp_dir="$1"
+
+	data_file=${tmp_dir}/data-file
+	sig_file=${tmp_dir}/sig-file
+	dd if=/dev/urandom of=$data_file bs=1 count=12345 2> /dev/null
+	fsverity sign --key ${tmp_dir}/signing_key.pem $data_file $sig_file
+
+	# We do not want to enable fsverity on $data_file yet. Try whether
+	# the file system support fsverity on a different file.
+	touch ${tmp_dir}/tmp-file
+	fsverity enable ${tmp_dir}/tmp-file
+}
+
+fsverity_enable_file() {
+	local tmp_dir="$1"
+
+	data_file=${tmp_dir}/data-file
+	fsverity enable $data_file
+}
+
+catch()
+{
+	local exit_code="$1"
+	local log_file="$2"
+
+	if [[ "${exit_code}" -ne 0 ]]; then
+		cat "${log_file}" >&3
+	fi
+
+	rm -f "${log_file}"
+	exit ${exit_code}
+}
+
+main()
+{
+	[[ $# -ne 2 ]] && usage
+
+	local action="$1"
+	local tmp_dir="$2"
+
+	[[ ! -d "${tmp_dir}" ]] && echo "Directory ${tmp_dir} doesn't exist" && exit 1
+
+	if [[ "${action}" == "setup" ]]; then
+		setup "${tmp_dir}"
+	elif [[ "${action}" == "genkey" ]]; then
+		genkey "${tmp_dir}"
+	elif [[ "${action}" == "cleanup" ]]; then
+		cleanup "${tmp_dir}"
+	elif [[ "${action}" == "fsverity-create-sign" ]]; then
+		fsverity_create_sign_file "${tmp_dir}"
+	elif [[ "${action}" == "fsverity-enable" ]]; then
+		fsverity_enable_file "${tmp_dir}"
+	else
+		echo "Unknown action: ${action}"
+		exit 1
+	fi
+}
+
+trap 'catch "$?" "${LOG_FILE}"' EXIT
+
+if [[ "${VERBOSE}" -eq 0 ]]; then
+	# Save the stderr to 3 so that we can output back to
+	# it incase of an error.
+	exec 3>&2 1>"${LOG_FILE}" 2>&1
+fi
+
+main "$@"
+rm -f "${LOG_FILE}"
diff --git a/tools/testing/selftests/bpf/veristat.c b/tools/testing/selftests/bpf/veristat.c
new file mode 100644
index 000000000000..e962f133250c
--- /dev/null
+++ b/tools/testing/selftests/bpf/veristat.c
@@ -0,0 +1,3384 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+#define _GNU_SOURCE
+#include <argp.h>
+#include <libgen.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <pthread.h>
+#include <dirent.h>
+#include <signal.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/time.h>
+#include <sys/sysinfo.h>
+#include <sys/stat.h>
+#include <bpf/libbpf.h>
+#include <bpf/btf.h>
+#include <bpf/bpf.h>
+#include <libelf.h>
+#include <gelf.h>
+#include <float.h>
+#include <math.h>
+#include <limits.h>
+#include <assert.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+#ifndef max
+#define max(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef min
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+enum stat_id {
+	VERDICT,
+	DURATION,
+	TOTAL_INSNS,
+	TOTAL_STATES,
+	PEAK_STATES,
+	MAX_STATES_PER_INSN,
+	MARK_READ_MAX_LEN,
+	SIZE,
+	JITED_SIZE,
+	STACK,
+	PROG_TYPE,
+	ATTACH_TYPE,
+	MEMORY_PEAK,
+
+	FILE_NAME,
+	PROG_NAME,
+
+	ALL_STATS_CNT,
+	NUM_STATS_CNT = FILE_NAME - VERDICT,
+};
+
+/* In comparison mode each stat can specify up to four different values:
+ *   - A side value;
+ *   - B side value;
+ *   - absolute diff value;
+ *   - relative (percentage) diff value.
+ *
+ * When specifying stat specs in comparison mode, user can use one of the
+ * following variant suffixes to specify which exact variant should be used for
+ * ordering or filtering:
+ *   - `_a` for A side value;
+ *   - `_b` for B side value;
+ *   - `_diff` for absolute diff value;
+ *   - `_pct` for relative (percentage) diff value.
+ *
+ * If no variant suffix is provided, then `_b` (control data) is assumed.
+ *
+ * As an example, let's say instructions stat has the following output:
+ *
+ * Insns (A)  Insns (B)  Insns   (DIFF)
+ * ---------  ---------  --------------
+ * 21547      20920       -627 (-2.91%)
+ *
+ * Then:
+ *   - 21547 is A side value (insns_a);
+ *   - 20920 is B side value (insns_b);
+ *   - -627 is absolute diff value (insns_diff);
+ *   - -2.91% is relative diff value (insns_pct).
+ *
+ * For verdict there is no verdict_pct variant.
+ * For file and program name, _a and _b variants are equivalent and there are
+ * no _diff or _pct variants.
+ */
+enum stat_variant {
+	VARIANT_A,
+	VARIANT_B,
+	VARIANT_DIFF,
+	VARIANT_PCT,
+};
+
+struct verif_stats {
+	char *file_name;
+	char *prog_name;
+
+	long stats[NUM_STATS_CNT];
+};
+
+/* joined comparison mode stats */
+struct verif_stats_join {
+	char *file_name;
+	char *prog_name;
+
+	const struct verif_stats *stats_a;
+	const struct verif_stats *stats_b;
+};
+
+struct stat_specs {
+	int spec_cnt;
+	enum stat_id ids[ALL_STATS_CNT];
+	enum stat_variant variants[ALL_STATS_CNT];
+	bool asc[ALL_STATS_CNT];
+	bool abs[ALL_STATS_CNT];
+	int lens[ALL_STATS_CNT * 3]; /* 3x for comparison mode */
+};
+
+enum resfmt {
+	RESFMT_TABLE,
+	RESFMT_TABLE_CALCLEN, /* fake format to pre-calculate table's column widths */
+	RESFMT_CSV,
+};
+
+enum filter_kind {
+	FILTER_NAME,
+	FILTER_STAT,
+};
+
+enum operator_kind {
+	OP_EQ,		/* == or = */
+	OP_NEQ,		/* != or <> */
+	OP_LT,		/* < */
+	OP_LE,		/* <= */
+	OP_GT,		/* > */
+	OP_GE,		/* >= */
+};
+
+struct filter {
+	enum filter_kind kind;
+	/* FILTER_NAME */
+	char *any_glob;
+	char *file_glob;
+	char *prog_glob;
+	/* FILTER_STAT */
+	enum operator_kind op;
+	int stat_id;
+	enum stat_variant stat_var;
+	long value;
+	bool abs;
+};
+
+struct rvalue {
+	enum { INTEGRAL, ENUMERATOR } type;
+	union {
+		long long ivalue;
+		char *svalue;
+	};
+};
+
+struct field_access {
+	enum { FIELD_NAME, ARRAY_INDEX } type;
+	union {
+		char *name;
+		struct rvalue index;
+	};
+};
+
+struct var_preset {
+	struct field_access *atoms;
+	int atom_count;
+	char *full_name;
+	struct rvalue value;
+	bool applied;
+};
+
+enum dump_mode {
+	DUMP_NONE = 0,
+	DUMP_XLATED = 1,
+	DUMP_JITED = 2,
+};
+
+static struct env {
+	char **filenames;
+	int filename_cnt;
+	bool verbose;
+	bool debug;
+	bool quiet;
+	bool force_checkpoints;
+	bool force_reg_invariants;
+	enum resfmt out_fmt;
+	bool show_version;
+	bool comparison_mode;
+	bool replay_mode;
+	int top_n;
+
+	int log_level;
+	int log_size;
+	bool log_fixed;
+
+	struct verif_stats *prog_stats;
+	int prog_stat_cnt;
+
+	/* baseline_stats is allocated and used only in comparison mode */
+	struct verif_stats *baseline_stats;
+	int baseline_stat_cnt;
+
+	struct verif_stats_join *join_stats;
+	int join_stat_cnt;
+
+	struct stat_specs output_spec;
+	struct stat_specs sort_spec;
+
+	struct filter *allow_filters;
+	struct filter *deny_filters;
+	int allow_filter_cnt;
+	int deny_filter_cnt;
+
+	int files_processed;
+	int files_skipped;
+	int progs_processed;
+	int progs_skipped;
+	int top_src_lines;
+	struct var_preset *presets;
+	int npresets;
+	char orig_cgroup[PATH_MAX];
+	char stat_cgroup[PATH_MAX];
+	int memory_peak_fd;
+	__u32 dump_mode;
+} env;
+
+static int libbpf_print_fn(enum libbpf_print_level level, const char *format, va_list args)
+{
+	if (!env.verbose)
+		return 0;
+	if (level == LIBBPF_DEBUG  && !env.debug)
+		return 0;
+	return vfprintf(stderr, format, args);
+}
+
+#define log_errno(fmt, ...) log_errno_aux(__FILE__, __LINE__, fmt, ##__VA_ARGS__)
+
+__attribute__((format(printf, 3, 4)))
+static int log_errno_aux(const char *file, int line, const char *fmt, ...)
+{
+	int err = -errno;
+	va_list ap;
+
+	va_start(ap, fmt);
+	fprintf(stderr, "%s:%d: ", file, line);
+	vfprintf(stderr, fmt, ap);
+	fprintf(stderr, " failed with error '%s'.\n", strerror(errno));
+	va_end(ap);
+	return err;
+}
+
+#ifndef VERISTAT_VERSION
+#define VERISTAT_VERSION "<kernel>"
+#endif
+
+const char *argp_program_version = "veristat v" VERISTAT_VERSION;
+const char *argp_program_bug_address = "<bpf@vger.kernel.org>";
+const char argp_program_doc[] =
+"veristat    BPF verifier stats collection and comparison tool.\n"
+"\n"
+"USAGE: veristat <obj-file> [<obj-file>...]\n"
+"   OR: veristat -C <baseline.csv> <comparison.csv>\n"
+"   OR: veristat -R <results.csv>\n"
+"   OR: veristat -vl2 <to_analyze.bpf.o>\n";
+
+enum {
+	OPT_LOG_FIXED = 1000,
+	OPT_LOG_SIZE = 1001,
+	OPT_DUMP = 1002,
+};
+
+static const struct argp_option opts[] = {
+	{ NULL, 'h', NULL, OPTION_HIDDEN, "Show the full help" },
+	{ "version", 'V', NULL, 0, "Print version" },
+	{ "verbose", 'v', NULL, 0, "Verbose mode" },
+	{ "debug", 'd', NULL, 0, "Debug mode (turns on libbpf debug logging)" },
+	{ "log-level", 'l', "LEVEL", 0, "Verifier log level (default 0 for normal mode, 1 for verbose mode, 2 for full verification log)" },
+	{ "log-fixed", OPT_LOG_FIXED, NULL, 0, "Disable verifier log rotation" },
+	{ "log-size", OPT_LOG_SIZE, "BYTES", 0, "Customize verifier log size (default to 16MB)" },
+	{ "top-n", 'n', "N", 0, "Emit only up to first N results." },
+	{ "quiet", 'q', NULL, 0, "Quiet mode" },
+	{ "emit", 'e', "SPEC", 0, "Specify stats to be emitted" },
+	{ "sort", 's', "SPEC", 0, "Specify sort order" },
+	{ "output-format", 'o', "FMT", 0, "Result output format (table, csv), default is table." },
+	{ "compare", 'C', NULL, 0, "Comparison mode" },
+	{ "replay", 'R', NULL, 0, "Replay mode" },
+	{ "filter", 'f', "FILTER", 0, "Filter expressions (or @filename for file with expressions)." },
+	{ "test-states", 't', NULL, 0,
+	  "Force frequent BPF verifier state checkpointing (set BPF_F_TEST_STATE_FREQ program flag)" },
+	{ "test-reg-invariants", 'r', NULL, 0,
+	  "Force BPF verifier failure on register invariant violation (BPF_F_TEST_REG_INVARIANTS program flag)" },
+	{ "top-src-lines", 'S', "N", 0, "Emit N most frequent source code lines" },
+	{ "set-global-vars", 'G', "GLOBAL", 0, "Set global variables provided in the expression, for example \"var1 = 1\"" },
+	{ "dump", OPT_DUMP, "DUMP_MODE", OPTION_ARG_OPTIONAL, "Print BPF program dump (xlated, jited)" },
+	{},
+};
+
+static int parse_stats(const char *stats_str, struct stat_specs *specs);
+static int append_filter(struct filter **filters, int *cnt, const char *str);
+static int append_filter_file(const char *path);
+static int append_var_preset(struct var_preset **presets, int *cnt, const char *expr);
+static int append_var_preset_file(const char *filename);
+static int append_file(const char *path);
+static int append_file_from_file(const char *path);
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	int err;
+
+	switch (key) {
+	case 'h':
+		argp_state_help(state, stderr, ARGP_HELP_STD_HELP);
+		break;
+	case 'V':
+		env.show_version = true;
+		break;
+	case 'v':
+		env.verbose = true;
+		break;
+	case 'd':
+		env.debug = true;
+		env.verbose = true;
+		break;
+	case 'q':
+		env.quiet = true;
+		break;
+	case 'e':
+		err = parse_stats(arg, &env.output_spec);
+		if (err)
+			return err;
+		break;
+	case 's':
+		err = parse_stats(arg, &env.sort_spec);
+		if (err)
+			return err;
+		break;
+	case 'o':
+		if (strcmp(arg, "table") == 0) {
+			env.out_fmt = RESFMT_TABLE;
+		} else if (strcmp(arg, "csv") == 0) {
+			env.out_fmt = RESFMT_CSV;
+		} else {
+			fprintf(stderr, "Unrecognized output format '%s'\n", arg);
+			return -EINVAL;
+		}
+		break;
+	case 'l':
+		errno = 0;
+		env.log_level = strtol(arg, NULL, 10);
+		if (errno) {
+			fprintf(stderr, "invalid log level: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case OPT_LOG_FIXED:
+		env.log_fixed = true;
+		break;
+	case OPT_LOG_SIZE:
+		errno = 0;
+		env.log_size = strtol(arg, NULL, 10);
+		if (errno) {
+			fprintf(stderr, "invalid log size: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 't':
+		env.force_checkpoints = true;
+		break;
+	case 'r':
+		env.force_reg_invariants = true;
+		break;
+	case 'n':
+		errno = 0;
+		env.top_n = strtol(arg, NULL, 10);
+		if (errno) {
+			fprintf(stderr, "invalid top N specifier: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'C':
+		env.comparison_mode = true;
+		break;
+	case 'R':
+		env.replay_mode = true;
+		break;
+	case 'f':
+		if (arg[0] == '@')
+			err = append_filter_file(arg + 1);
+		else if (arg[0] == '!')
+			err = append_filter(&env.deny_filters, &env.deny_filter_cnt, arg + 1);
+		else
+			err = append_filter(&env.allow_filters, &env.allow_filter_cnt, arg);
+		if (err) {
+			fprintf(stderr, "Failed to collect program filter expressions: %d\n", err);
+			return err;
+		}
+		break;
+	case 'S':
+		errno = 0;
+		env.top_src_lines = strtol(arg, NULL, 10);
+		if (errno) {
+			fprintf(stderr, "invalid top lines N specifier: %s\n", arg);
+			argp_usage(state);
+		}
+		break;
+	case 'G': {
+		if (arg[0] == '@')
+			err = append_var_preset_file(arg + 1);
+		else
+			err = append_var_preset(&env.presets, &env.npresets, arg);
+		if (err) {
+			fprintf(stderr, "Failed to parse global variable presets: %s\n", arg);
+			return err;
+		}
+		break;
+	}
+	case ARGP_KEY_ARG:
+		if (arg[0] == '@')
+			err = append_file_from_file(arg + 1);
+		else
+			err = append_file(arg);
+		if (err) {
+			fprintf(stderr, "Failed to collect BPF object files: %d\n", err);
+			return err;
+		}
+		break;
+	case OPT_DUMP:
+		if (!arg || strcasecmp(arg, "xlated") == 0) {
+			env.dump_mode |= DUMP_XLATED;
+		} else if (strcasecmp(arg, "jited") == 0) {
+			env.dump_mode |= DUMP_JITED;
+		} else {
+			fprintf(stderr, "Unrecognized dump mode '%s'\n", arg);
+			return -EINVAL;
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+	return 0;
+}
+
+static const struct argp argp = {
+	.options = opts,
+	.parser = parse_arg,
+	.doc = argp_program_doc,
+};
+
+
+/* Adapted from perf/util/string.c */
+static bool glob_matches(const char *str, const char *pat)
+{
+	while (*str && *pat && *pat != '*') {
+		if (*str != *pat)
+			return false;
+		str++;
+		pat++;
+	}
+	/* Check wild card */
+	if (*pat == '*') {
+		while (*pat == '*')
+			pat++;
+		if (!*pat) /* Tail wild card matches all */
+			return true;
+		while (*str)
+			if (glob_matches(str++, pat))
+				return true;
+	}
+	return !*str && !*pat;
+}
+
+static bool is_bpf_obj_file(const char *path) {
+	Elf64_Ehdr *ehdr;
+	int fd, err = -EINVAL;
+	Elf *elf = NULL;
+
+	fd = open(path, O_RDONLY | O_CLOEXEC);
+	if (fd < 0)
+		return true; /* we'll fail later and propagate error */
+
+	/* ensure libelf is initialized */
+	(void)elf_version(EV_CURRENT);
+
+	elf = elf_begin(fd, ELF_C_READ, NULL);
+	if (!elf)
+		goto cleanup;
+
+	if (elf_kind(elf) != ELF_K_ELF || gelf_getclass(elf) != ELFCLASS64)
+		goto cleanup;
+
+	ehdr = elf64_getehdr(elf);
+	/* Old LLVM set e_machine to EM_NONE */
+	if (!ehdr || ehdr->e_type != ET_REL || (ehdr->e_machine && ehdr->e_machine != EM_BPF))
+		goto cleanup;
+
+	err = 0;
+cleanup:
+	if (elf)
+		elf_end(elf);
+	close(fd);
+	return err == 0;
+}
+
+static bool should_process_file_prog(const char *filename, const char *prog_name)
+{
+	struct filter *f;
+	int i, allow_cnt = 0;
+
+	for (i = 0; i < env.deny_filter_cnt; i++) {
+		f = &env.deny_filters[i];
+		if (f->kind != FILTER_NAME)
+			continue;
+
+		if (f->any_glob && glob_matches(filename, f->any_glob))
+			return false;
+		if (f->any_glob && prog_name && glob_matches(prog_name, f->any_glob))
+			return false;
+		if (f->file_glob && glob_matches(filename, f->file_glob))
+			return false;
+		if (f->prog_glob && prog_name && glob_matches(prog_name, f->prog_glob))
+			return false;
+	}
+
+	for (i = 0; i < env.allow_filter_cnt; i++) {
+		f = &env.allow_filters[i];
+		if (f->kind != FILTER_NAME)
+			continue;
+
+		allow_cnt++;
+		if (f->any_glob) {
+			if (glob_matches(filename, f->any_glob))
+				return true;
+			/* If we don't know program name yet, any_glob filter
+			 * has to assume that current BPF object file might be
+			 * relevant; we'll check again later on after opening
+			 * BPF object file, at which point program name will
+			 * be known finally.
+			 */
+			if (!prog_name || glob_matches(prog_name, f->any_glob))
+				return true;
+		} else {
+			if (f->file_glob && !glob_matches(filename, f->file_glob))
+				continue;
+			if (f->prog_glob && prog_name && !glob_matches(prog_name, f->prog_glob))
+				continue;
+			return true;
+		}
+	}
+
+	/* if there are no file/prog name allow filters, allow all progs,
+	 * unless they are denied earlier explicitly
+	 */
+	return allow_cnt == 0;
+}
+
+static struct {
+	enum operator_kind op_kind;
+	const char *op_str;
+} operators[] = {
+	/* Order of these definitions matter to avoid situations like '<'
+	 * matching part of what is actually a '<>' operator. That is,
+	 * substrings should go last.
+	 */
+	{ OP_EQ, "==" },
+	{ OP_NEQ, "!=" },
+	{ OP_NEQ, "<>" },
+	{ OP_LE, "<=" },
+	{ OP_LT, "<" },
+	{ OP_GE, ">=" },
+	{ OP_GT, ">" },
+	{ OP_EQ, "=" },
+};
+
+static bool parse_stat_id_var(const char *name, size_t len, int *id,
+			      enum stat_variant *var, bool *is_abs);
+
+static int append_filter(struct filter **filters, int *cnt, const char *str)
+{
+	struct filter *f;
+	void *tmp;
+	const char *p;
+	int i;
+
+	tmp = realloc(*filters, (*cnt + 1) * sizeof(**filters));
+	if (!tmp)
+		return -ENOMEM;
+	*filters = tmp;
+
+	f = &(*filters)[*cnt];
+	memset(f, 0, sizeof(*f));
+
+	/* First, let's check if it's a stats filter of the following form:
+	 * <stat><op><value, where:
+	 *   - <stat> is one of supported numerical stats (verdict is also
+	 *     considered numerical, failure == 0, success == 1);
+	 *   - <op> is comparison operator (see `operators` definitions);
+	 *   - <value> is an integer (or failure/success, or false/true as
+	 *     special aliases for 0 and 1, respectively).
+	 * If the form doesn't match what user provided, we assume file/prog
+	 * glob filter.
+	 */
+	for (i = 0; i < ARRAY_SIZE(operators); i++) {
+		enum stat_variant var;
+		int id;
+		long val;
+		const char *end = str;
+		const char *op_str;
+		bool is_abs;
+
+		op_str = operators[i].op_str;
+		p = strstr(str, op_str);
+		if (!p)
+			continue;
+
+		if (!parse_stat_id_var(str, p - str, &id, &var, &is_abs)) {
+			fprintf(stderr, "Unrecognized stat name in '%s'!\n", str);
+			return -EINVAL;
+		}
+		if (id >= FILE_NAME) {
+			fprintf(stderr, "Non-integer stat is specified in '%s'!\n", str);
+			return -EINVAL;
+		}
+
+		p += strlen(op_str);
+
+		if (strcasecmp(p, "true") == 0 ||
+		    strcasecmp(p, "t") == 0 ||
+		    strcasecmp(p, "success") == 0 ||
+		    strcasecmp(p, "succ") == 0 ||
+		    strcasecmp(p, "s") == 0 ||
+		    strcasecmp(p, "match") == 0 ||
+		    strcasecmp(p, "m") == 0) {
+			val = 1;
+		} else if (strcasecmp(p, "false") == 0 ||
+			   strcasecmp(p, "f") == 0 ||
+			   strcasecmp(p, "failure") == 0 ||
+			   strcasecmp(p, "fail") == 0 ||
+			   strcasecmp(p, "mismatch") == 0 ||
+			   strcasecmp(p, "mis") == 0) {
+			val = 0;
+		} else {
+			errno = 0;
+			val = strtol(p, (char **)&end, 10);
+			if (errno || end == p || *end != '\0' ) {
+				fprintf(stderr, "Invalid integer value in '%s'!\n", str);
+				return -EINVAL;
+			}
+		}
+
+		f->kind = FILTER_STAT;
+		f->stat_id = id;
+		f->stat_var = var;
+		f->op = operators[i].op_kind;
+		f->abs = true;
+		f->value = val;
+
+		*cnt += 1;
+		return 0;
+	}
+
+	/* File/prog filter can be specified either as '<glob>' or
+	 * '<file-glob>/<prog-glob>'. In the former case <glob> is applied to
+	 * both file and program names. This seems to be way more useful in
+	 * practice. If user needs full control, they can use '/<prog-glob>'
+	 * form to glob just program name, or '<file-glob>/' to glob only file
+	 * name. But usually common <glob> seems to be the most useful and
+	 * ergonomic way.
+	 */
+	f->kind = FILTER_NAME;
+	p = strchr(str, '/');
+	if (!p) {
+		f->any_glob = strdup(str);
+		if (!f->any_glob)
+			return -ENOMEM;
+	} else {
+		if (str != p) {
+			/* non-empty file glob */
+			f->file_glob = strndup(str, p - str);
+			if (!f->file_glob)
+				return -ENOMEM;
+		}
+		if (strlen(p + 1) > 0) {
+			/* non-empty prog glob */
+			f->prog_glob = strdup(p + 1);
+			if (!f->prog_glob) {
+				free(f->file_glob);
+				f->file_glob = NULL;
+				return -ENOMEM;
+			}
+		}
+	}
+
+	*cnt += 1;
+	return 0;
+}
+
+static int append_filter_file(const char *path)
+{
+	char buf[1024];
+	FILE *f;
+	int err = 0;
+
+	f = fopen(path, "r");
+	if (!f) {
+		err = -errno;
+		fprintf(stderr, "Failed to open filters in '%s': %s\n", path, strerror(-err));
+		return err;
+	}
+
+	while (fscanf(f, " %1023[^\n]\n", buf) == 1) {
+		/* lines starting with # are comments, skip them */
+		if (buf[0] == '\0' || buf[0] == '#')
+			continue;
+		/* lines starting with ! are negative match filters */
+		if (buf[0] == '!')
+			err = append_filter(&env.deny_filters, &env.deny_filter_cnt, buf + 1);
+		else
+			err = append_filter(&env.allow_filters, &env.allow_filter_cnt, buf);
+		if (err)
+			goto cleanup;
+	}
+
+cleanup:
+	fclose(f);
+	return err;
+}
+
+static const struct stat_specs default_output_spec = {
+	.spec_cnt = 8,
+	.ids = {
+		FILE_NAME, PROG_NAME, VERDICT, DURATION,
+		TOTAL_INSNS, TOTAL_STATES, SIZE, JITED_SIZE
+	},
+};
+
+static int append_file(const char *path)
+{
+	void *tmp;
+
+	tmp = realloc(env.filenames, (env.filename_cnt + 1) * sizeof(*env.filenames));
+	if (!tmp)
+		return -ENOMEM;
+	env.filenames = tmp;
+	env.filenames[env.filename_cnt] = strdup(path);
+	if (!env.filenames[env.filename_cnt])
+		return -ENOMEM;
+	env.filename_cnt++;
+	return 0;
+}
+
+static int append_file_from_file(const char *path)
+{
+	char buf[1024];
+	int err = 0;
+	FILE *f;
+
+	f = fopen(path, "r");
+	if (!f) {
+		err = -errno;
+		fprintf(stderr, "Failed to open object files list in '%s': %s\n",
+			path, strerror(errno));
+		return err;
+	}
+
+	while (fscanf(f, " %1023[^\n]\n", buf) == 1) {
+		/* lines starting with # are comments, skip them */
+		if (buf[0] == '\0' || buf[0] == '#')
+			continue;
+		err = append_file(buf);
+		if (err)
+			goto cleanup;
+	}
+
+cleanup:
+	fclose(f);
+	return err;
+}
+
+static const struct stat_specs default_csv_output_spec = {
+	.spec_cnt = 15,
+	.ids = {
+		FILE_NAME, PROG_NAME, VERDICT, DURATION,
+		TOTAL_INSNS, TOTAL_STATES, PEAK_STATES,
+		MAX_STATES_PER_INSN, MARK_READ_MAX_LEN,
+		SIZE, JITED_SIZE, PROG_TYPE, ATTACH_TYPE,
+		STACK, MEMORY_PEAK,
+	},
+};
+
+static const struct stat_specs default_sort_spec = {
+	.spec_cnt = 2,
+	.ids = {
+		FILE_NAME, PROG_NAME,
+	},
+	.asc = { true, true, },
+};
+
+/* sorting for comparison mode to join two data sets */
+static const struct stat_specs join_sort_spec = {
+	.spec_cnt = 2,
+	.ids = {
+		FILE_NAME, PROG_NAME,
+	},
+	.asc = { true, true, },
+};
+
+static struct stat_def {
+	const char *header;
+	const char *names[4];
+	bool asc_by_default;
+	bool left_aligned;
+} stat_defs[] = {
+	[FILE_NAME] = { "File", {"file_name", "filename", "file"}, true /* asc */, true /* left */ },
+	[PROG_NAME] = { "Program", {"prog_name", "progname", "prog"}, true /* asc */, true /* left */ },
+	[VERDICT] = { "Verdict", {"verdict"}, true /* asc: failure, success */, true /* left */ },
+	[DURATION] = { "Duration (us)", {"duration", "dur"}, },
+	[TOTAL_INSNS] = { "Insns", {"total_insns", "insns"}, },
+	[TOTAL_STATES] = { "States", {"total_states", "states"}, },
+	[PEAK_STATES] = { "Peak states", {"peak_states"}, },
+	[MAX_STATES_PER_INSN] = { "Max states per insn", {"max_states_per_insn"}, },
+	[MARK_READ_MAX_LEN] = { "Max mark read length", {"max_mark_read_len", "mark_read"}, },
+	[SIZE] = { "Program size", {"prog_size"}, },
+	[JITED_SIZE] = { "Jited size", {"prog_size_jited"}, },
+	[STACK] = {"Stack depth", {"stack_depth", "stack"}, },
+	[PROG_TYPE] = { "Program type", {"prog_type"}, },
+	[ATTACH_TYPE] = { "Attach type", {"attach_type", }, },
+	[MEMORY_PEAK] = { "Peak memory (MiB)", {"mem_peak", }, },
+};
+
+static bool parse_stat_id_var(const char *name, size_t len, int *id,
+			      enum stat_variant *var, bool *is_abs)
+{
+	static const char *var_sfxs[] = {
+		[VARIANT_A] = "_a",
+		[VARIANT_B] = "_b",
+		[VARIANT_DIFF] = "_diff",
+		[VARIANT_PCT] = "_pct",
+	};
+	int i, j, k;
+
+	/* |<stat>| means we take absolute value of given stat */
+	*is_abs = false;
+	if (len > 2 && name[0] == '|' && name[len - 1] == '|') {
+		*is_abs = true;
+		name += 1;
+		len -= 2;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(stat_defs); i++) {
+		struct stat_def *def = &stat_defs[i];
+		size_t alias_len, sfx_len;
+		const char *alias;
+
+		for (j = 0; j < ARRAY_SIZE(stat_defs[i].names); j++) {
+			alias = def->names[j];
+			if (!alias)
+				continue;
+
+			alias_len = strlen(alias);
+			if (strncmp(name, alias, alias_len) != 0)
+				continue;
+
+			if (alias_len == len) {
+				/* If no variant suffix is specified, we
+				 * assume control group (just in case we are
+				 * in comparison mode. Variant is ignored in
+				 * non-comparison mode.
+				 */
+				*var = VARIANT_B;
+				*id = i;
+				return true;
+			}
+
+			for (k = 0; k < ARRAY_SIZE(var_sfxs); k++) {
+				sfx_len = strlen(var_sfxs[k]);
+				if (alias_len + sfx_len != len)
+					continue;
+
+				if (strncmp(name + alias_len, var_sfxs[k], sfx_len) == 0) {
+					*var = (enum stat_variant)k;
+					*id = i;
+					return true;
+				}
+			}
+		}
+	}
+
+	return false;
+}
+
+static bool is_asc_sym(char c)
+{
+	return c == '^';
+}
+
+static bool is_desc_sym(char c)
+{
+	return c == 'v' || c == 'V' || c == '.' || c == '!' || c == '_';
+}
+
+static char *rtrim(char *str)
+{
+	int i;
+
+	for (i = strlen(str) - 1; i > 0; --i) {
+		if (!isspace(str[i]))
+			break;
+		str[i] = '\0';
+	}
+	return str;
+}
+
+static int parse_stat(const char *stat_name, struct stat_specs *specs)
+{
+	int id;
+	bool has_order = false, is_asc = false, is_abs = false;
+	size_t len = strlen(stat_name);
+	enum stat_variant var;
+
+	if (specs->spec_cnt >= ARRAY_SIZE(specs->ids)) {
+		fprintf(stderr, "Can't specify more than %zd stats\n", ARRAY_SIZE(specs->ids));
+		return -E2BIG;
+	}
+
+	if (len > 1 && (is_asc_sym(stat_name[len - 1]) || is_desc_sym(stat_name[len - 1]))) {
+		has_order = true;
+		is_asc = is_asc_sym(stat_name[len - 1]);
+		len -= 1;
+	}
+
+	if (!parse_stat_id_var(stat_name, len, &id, &var, &is_abs)) {
+		fprintf(stderr, "Unrecognized stat name '%s'\n", stat_name);
+		return -ESRCH;
+	}
+
+	specs->ids[specs->spec_cnt] = id;
+	specs->variants[specs->spec_cnt] = var;
+	specs->asc[specs->spec_cnt] = has_order ? is_asc : stat_defs[id].asc_by_default;
+	specs->abs[specs->spec_cnt] = is_abs;
+	specs->spec_cnt++;
+
+	return 0;
+}
+
+static int parse_stats(const char *stats_str, struct stat_specs *specs)
+{
+	char *input, *state = NULL, *next;
+	int err, cnt = 0;
+
+	input = strdup(stats_str);
+	if (!input)
+		return -ENOMEM;
+
+	while ((next = strtok_r(cnt++ ? NULL : input, ",", &state))) {
+		err = parse_stat(next, specs);
+		if (err) {
+			free(input);
+			return err;
+		}
+	}
+
+	free(input);
+	return 0;
+}
+
+static void free_verif_stats(struct verif_stats *stats, size_t stat_cnt)
+{
+	int i;
+
+	if (!stats)
+		return;
+
+	for (i = 0; i < stat_cnt; i++) {
+		free(stats[i].file_name);
+		free(stats[i].prog_name);
+	}
+	free(stats);
+}
+
+static char verif_log_buf[64 * 1024];
+
+#define MAX_PARSED_LOG_LINES 100
+
+static int parse_verif_log(char * const buf, size_t buf_sz, struct verif_stats *s)
+{
+	const char *cur;
+	int pos, lines, sub_stack, cnt = 0;
+	char *state = NULL, *token, stack[512];
+
+	buf[buf_sz - 1] = '\0';
+
+	for (pos = strlen(buf) - 1, lines = 0; pos >= 0 && lines < MAX_PARSED_LOG_LINES; lines++) {
+		/* find previous endline or otherwise take the start of log buf */
+		for (cur = &buf[pos]; cur > buf && cur[0] != '\n'; cur--, pos--) {
+		}
+		/* next time start from end of previous line (or pos goes to <0) */
+		pos--;
+		/* if we found endline, point right after endline symbol;
+		 * otherwise, stay at the beginning of log buf
+		 */
+		if (cur[0] == '\n')
+			cur++;
+
+		if (1 == sscanf(cur, "verification time %ld usec\n", &s->stats[DURATION]))
+			continue;
+		if (5 == sscanf(cur, "processed %ld insns (limit %*d) max_states_per_insn %ld total_states %ld peak_states %ld mark_read %ld",
+				&s->stats[TOTAL_INSNS],
+				&s->stats[MAX_STATES_PER_INSN],
+				&s->stats[TOTAL_STATES],
+				&s->stats[PEAK_STATES],
+				&s->stats[MARK_READ_MAX_LEN]))
+			continue;
+
+		if (1 == sscanf(cur, "stack depth %511s", stack))
+			continue;
+	}
+	while ((token = strtok_r(cnt++ ? NULL : stack, "+", &state))) {
+		if (sscanf(token, "%d", &sub_stack) == 0)
+			break;
+		s->stats[STACK] += sub_stack;
+	}
+	return 0;
+}
+
+struct line_cnt {
+	char *line;
+	int cnt;
+};
+
+static int str_cmp(const void *a, const void *b)
+{
+	const char **str1 = (const char **)a;
+	const char **str2 = (const char **)b;
+
+	return strcmp(*str1, *str2);
+}
+
+static int line_cnt_cmp(const void *a, const void *b)
+{
+	const struct line_cnt *a_cnt = (const struct line_cnt *)a;
+	const struct line_cnt *b_cnt = (const struct line_cnt *)b;
+
+	if (a_cnt->cnt != b_cnt->cnt)
+		return a_cnt->cnt > b_cnt->cnt ? -1 : 1;
+	return strcmp(a_cnt->line, b_cnt->line);
+}
+
+static int print_top_src_lines(char * const buf, size_t buf_sz, const char *prog_name)
+{
+	int lines_cap = 0;
+	int lines_size = 0;
+	char **lines = NULL;
+	char *line = NULL;
+	char *state;
+	struct line_cnt *freq = NULL;
+	struct line_cnt *cur;
+	int unique_lines;
+	int err = 0;
+	int i;
+
+	while ((line = strtok_r(line ? NULL : buf, "\n", &state))) {
+		if (strncmp(line, "; ", 2) != 0)
+			continue;
+		line += 2;
+
+		if (lines_size == lines_cap) {
+			char **tmp;
+
+			lines_cap = max(16, lines_cap * 2);
+			tmp = realloc(lines, lines_cap * sizeof(*tmp));
+			if (!tmp) {
+				err = -ENOMEM;
+				goto cleanup;
+			}
+			lines = tmp;
+		}
+		lines[lines_size] = line;
+		lines_size++;
+	}
+
+	if (lines_size == 0)
+		goto cleanup;
+
+	qsort(lines, lines_size, sizeof(*lines), str_cmp);
+
+	freq = calloc(lines_size, sizeof(*freq));
+	if (!freq) {
+		err = -ENOMEM;
+		goto cleanup;
+	}
+
+	cur = freq;
+	cur->line = lines[0];
+	cur->cnt = 1;
+	for (i = 1; i < lines_size; ++i) {
+		if (strcmp(lines[i], cur->line) != 0) {
+			cur++;
+			cur->line = lines[i];
+			cur->cnt = 0;
+		}
+		cur->cnt++;
+	}
+	unique_lines = cur - freq + 1;
+
+	qsort(freq, unique_lines, sizeof(struct line_cnt), line_cnt_cmp);
+
+	printf("Top source lines (%s):\n", prog_name);
+	for (i = 0; i < min(unique_lines, env.top_src_lines); ++i) {
+		const char *src_code = freq[i].line;
+		const char *src_line = NULL;
+		char *split = strrchr(freq[i].line, '@');
+
+		if (split) {
+			src_line = split + 1;
+
+			while (*src_line && isspace(*src_line))
+				src_line++;
+
+			while (split > src_code && isspace(*split))
+				split--;
+			*split = '\0';
+		}
+
+		if (src_line)
+			printf("%5d: (%s)\t%s\n", freq[i].cnt, src_line, src_code);
+		else
+			printf("%5d: %s\n", freq[i].cnt, src_code);
+	}
+	printf("\n");
+
+cleanup:
+	free(freq);
+	free(lines);
+	return err;
+}
+
+static int guess_prog_type_by_ctx_name(const char *ctx_name,
+				       enum bpf_prog_type *prog_type,
+				       enum bpf_attach_type *attach_type)
+{
+	/* We need to guess program type based on its declared context type.
+	 * This guess can't be perfect as many different program types might
+	 * share the same context type.  So we can only hope to reasonably
+	 * well guess this and get lucky.
+	 *
+	 * Just in case, we support both UAPI-side type names and
+	 * kernel-internal names.
+	 */
+	static struct {
+		const char *uapi_name;
+		const char *kern_name;
+		enum bpf_prog_type prog_type;
+		enum bpf_attach_type attach_type;
+	} ctx_map[] = {
+		/* __sk_buff is most ambiguous, we assume TC program */
+		{ "__sk_buff", "sk_buff", BPF_PROG_TYPE_SCHED_CLS },
+		{ "bpf_sock", "sock", BPF_PROG_TYPE_CGROUP_SOCK, BPF_CGROUP_INET4_POST_BIND },
+		{ "bpf_sock_addr", "bpf_sock_addr_kern",  BPF_PROG_TYPE_CGROUP_SOCK_ADDR, BPF_CGROUP_INET4_BIND },
+		{ "bpf_sock_ops", "bpf_sock_ops_kern", BPF_PROG_TYPE_SOCK_OPS, BPF_CGROUP_SOCK_OPS },
+		{ "sk_msg_md", "sk_msg", BPF_PROG_TYPE_SK_MSG, BPF_SK_MSG_VERDICT },
+		{ "bpf_cgroup_dev_ctx", "bpf_cgroup_dev_ctx", BPF_PROG_TYPE_CGROUP_DEVICE, BPF_CGROUP_DEVICE },
+		{ "bpf_sysctl", "bpf_sysctl_kern", BPF_PROG_TYPE_CGROUP_SYSCTL, BPF_CGROUP_SYSCTL },
+		{ "bpf_sockopt", "bpf_sockopt_kern", BPF_PROG_TYPE_CGROUP_SOCKOPT, BPF_CGROUP_SETSOCKOPT },
+		{ "sk_reuseport_md", "sk_reuseport_kern", BPF_PROG_TYPE_SK_REUSEPORT, BPF_SK_REUSEPORT_SELECT_OR_MIGRATE },
+		{ "bpf_sk_lookup", "bpf_sk_lookup_kern", BPF_PROG_TYPE_SK_LOOKUP, BPF_SK_LOOKUP },
+		{ "xdp_md", "xdp_buff", BPF_PROG_TYPE_XDP, BPF_XDP },
+		/* tracing types with no expected attach type */
+		{ "bpf_user_pt_regs_t", "pt_regs", BPF_PROG_TYPE_KPROBE },
+		{ "bpf_perf_event_data", "bpf_perf_event_data_kern", BPF_PROG_TYPE_PERF_EVENT },
+		/* raw_tp programs use u64[] from kernel side, we don't want
+		 * to match on that, probably; so NULL for kern-side type
+		 */
+		{ "bpf_raw_tracepoint_args", NULL, BPF_PROG_TYPE_RAW_TRACEPOINT },
+	};
+	int i;
+
+	if (!ctx_name)
+		return -EINVAL;
+
+	for (i = 0; i < ARRAY_SIZE(ctx_map); i++) {
+		if (strcmp(ctx_map[i].uapi_name, ctx_name) == 0 ||
+		    (ctx_map[i].kern_name && strcmp(ctx_map[i].kern_name, ctx_name) == 0)) {
+			*prog_type = ctx_map[i].prog_type;
+			*attach_type = ctx_map[i].attach_type;
+			return 0;
+		}
+	}
+
+	return -ESRCH;
+}
+
+/* Make sure only target program is referenced from struct_ops map,
+ * otherwise libbpf would automatically set autocreate for all
+ * referenced programs.
+ * See libbpf.c:bpf_object_adjust_struct_ops_autoload.
+ */
+static void mask_unrelated_struct_ops_progs(struct bpf_object *obj,
+					    struct bpf_map *map,
+					    struct bpf_program *prog)
+{
+	struct btf *btf = bpf_object__btf(obj);
+	const struct btf_type *t, *mt;
+	struct btf_member *m;
+	int i, moff;
+	size_t data_sz, ptr_sz = sizeof(void *);
+	void *data;
+
+	t = btf__type_by_id(btf, bpf_map__btf_value_type_id(map));
+	if (!btf_is_struct(t))
+		return;
+
+	data = bpf_map__initial_value(map, &data_sz);
+	for (i = 0; i < btf_vlen(t); i++) {
+		m = &btf_members(t)[i];
+		mt = btf__type_by_id(btf, m->type);
+		if (!btf_is_ptr(mt))
+			continue;
+		moff = m->offset / 8;
+		if (moff + ptr_sz > data_sz)
+			continue;
+		if (memcmp(data + moff, &prog, ptr_sz) == 0)
+			continue;
+		memset(data + moff, 0, ptr_sz);
+	}
+}
+
+static void fixup_obj(struct bpf_object *obj, struct bpf_program *prog, const char *filename)
+{
+	struct bpf_map *map;
+
+	bpf_object__for_each_map(map, obj) {
+		/* disable pinning */
+		bpf_map__set_pin_path(map, NULL);
+
+		/* fix up map size, if necessary */
+		switch (bpf_map__type(map)) {
+		case BPF_MAP_TYPE_SK_STORAGE:
+		case BPF_MAP_TYPE_TASK_STORAGE:
+		case BPF_MAP_TYPE_INODE_STORAGE:
+		case BPF_MAP_TYPE_CGROUP_STORAGE:
+		case BPF_MAP_TYPE_CGRP_STORAGE:
+			break;
+		case BPF_MAP_TYPE_STRUCT_OPS:
+			mask_unrelated_struct_ops_progs(obj, map, prog);
+			break;
+		default:
+			if (bpf_map__max_entries(map) == 0)
+				bpf_map__set_max_entries(map, 1);
+		}
+	}
+
+	/* SEC(freplace) programs can't be loaded with veristat as is,
+	 * but we can try guessing their target program's expected type by
+	 * looking at the type of program's first argument and substituting
+	 * corresponding program type
+	 */
+	if (bpf_program__type(prog) == BPF_PROG_TYPE_EXT) {
+		const struct btf *btf = bpf_object__btf(obj);
+		const char *prog_name = bpf_program__name(prog);
+		enum bpf_prog_type prog_type;
+		enum bpf_attach_type attach_type;
+		const struct btf_type *t;
+		const char *ctx_name;
+		int id;
+
+		if (!btf)
+			goto skip_freplace_fixup;
+
+		id = btf__find_by_name_kind(btf, prog_name, BTF_KIND_FUNC);
+		t = btf__type_by_id(btf, id);
+		t = btf__type_by_id(btf, t->type);
+		if (!btf_is_func_proto(t) || btf_vlen(t) != 1)
+			goto skip_freplace_fixup;
+
+		/* context argument is a pointer to a struct/typedef */
+		t = btf__type_by_id(btf, btf_params(t)[0].type);
+		while (t && btf_is_mod(t))
+			t = btf__type_by_id(btf, t->type);
+		if (!t || !btf_is_ptr(t))
+			goto skip_freplace_fixup;
+		t = btf__type_by_id(btf, t->type);
+		while (t && btf_is_mod(t))
+			t = btf__type_by_id(btf, t->type);
+		if (!t)
+			goto skip_freplace_fixup;
+
+		ctx_name = btf__name_by_offset(btf, t->name_off);
+
+		if (guess_prog_type_by_ctx_name(ctx_name, &prog_type, &attach_type) == 0) {
+			bpf_program__set_type(prog, prog_type);
+			bpf_program__set_expected_attach_type(prog, attach_type);
+
+			if (!env.quiet) {
+				fprintf(stderr, "Using guessed program type '%s' for %s/%s...\n",
+					libbpf_bpf_prog_type_str(prog_type),
+					filename, prog_name);
+			}
+		} else {
+			if (!env.quiet) {
+				fprintf(stderr, "Failed to guess program type for freplace program with context type name '%s' for %s/%s. Consider using canonical type names to help veristat...\n",
+					ctx_name, filename, prog_name);
+			}
+		}
+	}
+skip_freplace_fixup:
+	return;
+}
+
+static int max_verifier_log_size(void)
+{
+	const int SMALL_LOG_SIZE = UINT_MAX >> 8;
+	const int BIG_LOG_SIZE = UINT_MAX >> 2;
+	struct bpf_insn insns[] = {
+		{ .code = BPF_ALU | BPF_MOV | BPF_X, .dst_reg = BPF_REG_0, },
+		{ .code  = BPF_JMP | BPF_EXIT, },
+	};
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		    .log_size = BIG_LOG_SIZE,
+		    .log_buf = (void *)-1,
+		    .log_level = 4
+	);
+	int ret, insn_cnt = ARRAY_SIZE(insns);
+	static int log_size;
+
+	if (log_size != 0)
+		return log_size;
+
+	ret = bpf_prog_load(BPF_PROG_TYPE_TRACEPOINT, NULL, "GPL", insns, insn_cnt, &opts);
+
+	if (ret == -EFAULT)
+		log_size = BIG_LOG_SIZE;
+	else /* ret == -EINVAL, big log size is not supported by the verifier */
+		log_size = SMALL_LOG_SIZE;
+
+	return log_size;
+}
+
+static bool output_stat_enabled(int id)
+{
+	int i;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++)
+		if (env.output_spec.ids[i] == id)
+			return true;
+	return false;
+}
+
+__attribute__((format(printf, 2, 3)))
+static int write_one_line(const char *file, const char *fmt, ...)
+{
+	int err, saved_errno;
+	va_list ap;
+	FILE *f;
+
+	f = fopen(file, "w");
+	if (!f)
+		return -1;
+
+	va_start(ap, fmt);
+	errno = 0;
+	err = vfprintf(f, fmt, ap);
+	saved_errno = errno;
+	va_end(ap);
+	fclose(f);
+	errno = saved_errno;
+	return err < 0 ? -1 : 0;
+}
+
+__attribute__((format(scanf, 3, 4)))
+static int scanf_one_line(const char *file, int fields_expected, const char *fmt, ...)
+{
+	int res = 0, saved_errno = 0;
+	char *line = NULL;
+	size_t line_len;
+	va_list ap;
+	FILE *f;
+
+	f = fopen(file, "r");
+	if (!f)
+		return -1;
+
+	va_start(ap, fmt);
+	while (getline(&line, &line_len, f) > 0) {
+		res = vsscanf(line, fmt, ap);
+		if (res == fields_expected)
+			goto out;
+	}
+	if (ferror(f)) {
+		saved_errno = errno;
+		res = -1;
+	}
+
+out:
+	va_end(ap);
+	free(line);
+	fclose(f);
+	errno = saved_errno;
+	return res;
+}
+
+static void destroy_stat_cgroup(void)
+{
+	char buf[PATH_MAX];
+	int err;
+
+	close(env.memory_peak_fd);
+
+	if (env.orig_cgroup[0]) {
+		snprintf(buf, sizeof(buf), "%s/cgroup.procs", env.orig_cgroup);
+		err = write_one_line(buf, "%d\n", getpid());
+		if (err < 0)
+			log_errno("moving self to original cgroup %s\n", env.orig_cgroup);
+	}
+
+	if (env.stat_cgroup[0]) {
+		err = rmdir(env.stat_cgroup);
+		if (err < 0)
+			log_errno("deletion of cgroup %s", env.stat_cgroup);
+	}
+
+	env.memory_peak_fd = -1;
+	env.orig_cgroup[0] = 0;
+	env.stat_cgroup[0] = 0;
+}
+
+/*
+ * Creates a cgroup at /sys/fs/cgroup/veristat-accounting-<pid>,
+ * moves current process to this cgroup.
+ */
+static void create_stat_cgroup(void)
+{
+	char cgroup_fs_mount[4096];
+	char buf[4096];
+	int err;
+
+	env.memory_peak_fd = -1;
+
+	if (!output_stat_enabled(MEMORY_PEAK))
+		return;
+
+	err = scanf_one_line("/proc/self/mounts", 2, "%*s %4095s cgroup2 %s",
+			     cgroup_fs_mount, buf);
+	if (err != 2) {
+		if (err < 0)
+			log_errno("reading /proc/self/mounts");
+		else if (!env.quiet)
+			fprintf(stderr, "Can't find cgroupfs v2 mount point.\n");
+		goto err_out;
+	}
+
+	/* cgroup-v2.rst promises the line "0::<group>" for cgroups v2 */
+	err = scanf_one_line("/proc/self/cgroup", 1, "0::%4095s", buf);
+	if (err != 1) {
+		if (err < 0)
+			log_errno("reading /proc/self/cgroup");
+		else if (!env.quiet)
+			fprintf(stderr, "Can't infer veristat process cgroup.");
+		goto err_out;
+	}
+
+	snprintf(env.orig_cgroup, sizeof(env.orig_cgroup), "%s/%s", cgroup_fs_mount, buf);
+
+	snprintf(buf, sizeof(buf), "%s/veristat-accounting-%d", cgroup_fs_mount, getpid());
+	err = mkdir(buf, 0777);
+	if (err < 0) {
+		log_errno("creation of cgroup %s", buf);
+		goto err_out;
+	}
+	strcpy(env.stat_cgroup, buf);
+
+	snprintf(buf, sizeof(buf), "%s/cgroup.procs", env.stat_cgroup);
+	err = write_one_line(buf, "%d\n", getpid());
+	if (err < 0) {
+		log_errno("entering cgroup %s", buf);
+		goto err_out;
+	}
+
+	snprintf(buf, sizeof(buf), "%s/memory.peak", env.stat_cgroup);
+	env.memory_peak_fd = open(buf, O_RDWR | O_APPEND);
+	if (env.memory_peak_fd < 0) {
+		log_errno("opening %s", buf);
+		goto err_out;
+	}
+
+	return;
+
+err_out:
+	if (!env.quiet)
+		fprintf(stderr, "Memory usage metric unavailable.\n");
+	destroy_stat_cgroup();
+}
+
+/* Current value of /sys/fs/cgroup/veristat-accounting-<pid>/memory.peak */
+static long cgroup_memory_peak(void)
+{
+	long err, memory_peak;
+	char buf[32];
+
+	if (env.memory_peak_fd < 0)
+		return -1;
+
+	err = pread(env.memory_peak_fd, buf, sizeof(buf) - 1, 0);
+	if (err <= 0) {
+		log_errno("pread(%s/memory.peak)", env.stat_cgroup);
+		return -1;
+	}
+
+	buf[err] = 0;
+	errno = 0;
+	memory_peak = strtoll(buf, NULL, 10);
+	if (errno) {
+		log_errno("%s/memory.peak:strtoll(%s)", env.stat_cgroup, buf);
+		return -1;
+	}
+
+	return memory_peak;
+}
+
+static int reset_stat_cgroup(void)
+{
+	char buf[] = "r\n";
+	int err;
+
+	if (env.memory_peak_fd < 0)
+		return -1;
+
+	err = pwrite(env.memory_peak_fd, buf, sizeof(buf), 0);
+	if (err <= 0) {
+		log_errno("pwrite(%s/memory.peak)", env.stat_cgroup);
+		return -1;
+	}
+	return 0;
+}
+
+static int parse_rvalue(const char *val, struct rvalue *rvalue)
+{
+	long long value;
+	char *val_end;
+
+	if (val[0] == '-' || isdigit(val[0])) {
+		/* must be a number */
+		errno = 0;
+		value = strtoll(val, &val_end, 0);
+		if (errno == ERANGE) {
+			errno = 0;
+			value = strtoull(val, &val_end, 0);
+		}
+		if (errno || *val_end != '\0') {
+			fprintf(stderr, "Failed to parse value '%s'\n", val);
+			return -EINVAL;
+		}
+		rvalue->ivalue = value;
+		rvalue->type = INTEGRAL;
+	} else {
+		/* if not a number, consider it enum value */
+		rvalue->svalue = strdup(val);
+		if (!rvalue->svalue)
+			return -ENOMEM;
+		rvalue->type = ENUMERATOR;
+	}
+	return 0;
+}
+
+static void dump(__u32 prog_id, enum dump_mode mode, const char *file_name, const char *prog_name)
+{
+	char command[64], buf[4096];
+	FILE *fp;
+	int status;
+
+	status = system("command -v bpftool > /dev/null 2>&1");
+	if (status != 0) {
+		fprintf(stderr, "bpftool is not available, can't print program dump\n");
+		return;
+	}
+	snprintf(command, sizeof(command), "bpftool prog dump %s id %u",
+		 mode == DUMP_JITED ? "jited" : "xlated", prog_id);
+	fp = popen(command, "r");
+	if (!fp) {
+		fprintf(stderr, "bpftool failed with error: %d\n", errno);
+		return;
+	}
+
+	printf("DUMP (%s) %s/%s:\n", mode == DUMP_JITED ? "JITED" : "XLATED", file_name, prog_name);
+	while (fgets(buf, sizeof(buf), fp))
+		fputs(buf, stdout);
+	fprintf(stdout, "\n");
+
+	if (ferror(fp))
+		fprintf(stderr, "Failed to dump BPF prog with error: %d\n", errno);
+
+	pclose(fp);
+}
+
+static int process_prog(const char *filename, struct bpf_object *obj, struct bpf_program *prog)
+{
+	const char *base_filename = basename(strdupa(filename));
+	const char *prog_name = bpf_program__name(prog);
+	long mem_peak_a, mem_peak_b, mem_peak = -1;
+	char *buf;
+	int buf_sz, log_level;
+	struct verif_stats *stats;
+	struct bpf_prog_info info;
+	__u32 info_len = sizeof(info);
+	int err = 0, cgroup_err;
+	void *tmp;
+	int fd;
+
+	if (!should_process_file_prog(base_filename, bpf_program__name(prog))) {
+		env.progs_skipped++;
+		return 0;
+	}
+
+	tmp = realloc(env.prog_stats, (env.prog_stat_cnt + 1) * sizeof(*env.prog_stats));
+	if (!tmp)
+		return -ENOMEM;
+	env.prog_stats = tmp;
+	stats = &env.prog_stats[env.prog_stat_cnt++];
+	memset(stats, 0, sizeof(*stats));
+
+	if (env.verbose || env.top_src_lines > 0) {
+		buf_sz = env.log_size ? env.log_size : max_verifier_log_size();
+		buf = malloc(buf_sz);
+		if (!buf)
+			return -ENOMEM;
+		/* ensure we always request stats */
+		log_level = env.log_level | 4 | (env.log_fixed ? 8 : 0);
+		/* --top-src-lines needs verifier log */
+		if (env.top_src_lines > 0 && env.log_level == 0)
+			log_level |= 2;
+	} else {
+		buf = verif_log_buf;
+		buf_sz = sizeof(verif_log_buf);
+		/* request only verifier stats */
+		log_level = 4 | (env.log_fixed ? 8 : 0);
+	}
+	verif_log_buf[0] = '\0';
+
+	bpf_program__set_log_buf(prog, buf, buf_sz);
+	bpf_program__set_log_level(prog, log_level);
+
+	/* increase chances of successful BPF object loading */
+	fixup_obj(obj, prog, base_filename);
+
+	if (env.force_checkpoints)
+		bpf_program__set_flags(prog, bpf_program__flags(prog) | BPF_F_TEST_STATE_FREQ);
+	if (env.force_reg_invariants)
+		bpf_program__set_flags(prog, bpf_program__flags(prog) | BPF_F_TEST_REG_INVARIANTS);
+
+	err = bpf_object__prepare(obj);
+	if (!err) {
+		cgroup_err = reset_stat_cgroup();
+		mem_peak_a = cgroup_memory_peak();
+		err = bpf_object__load(obj);
+		mem_peak_b = cgroup_memory_peak();
+		if (!cgroup_err && mem_peak_a >= 0 && mem_peak_b >= 0)
+			mem_peak = mem_peak_b - mem_peak_a;
+	}
+	env.progs_processed++;
+
+	stats->file_name = strdup(base_filename);
+	stats->prog_name = strdup(bpf_program__name(prog));
+	stats->stats[VERDICT] = err == 0; /* 1 - success, 0 - failure */
+	stats->stats[SIZE] = bpf_program__insn_cnt(prog);
+	stats->stats[PROG_TYPE] = bpf_program__type(prog);
+	stats->stats[ATTACH_TYPE] = bpf_program__expected_attach_type(prog);
+	stats->stats[MEMORY_PEAK] = mem_peak < 0 ? -1 : mem_peak / (1024 * 1024);
+
+	memset(&info, 0, info_len);
+	fd = bpf_program__fd(prog);
+	if (fd > 0 && bpf_prog_get_info_by_fd(fd, &info, &info_len) == 0) {
+		stats->stats[JITED_SIZE] = info.jited_prog_len;
+		if (env.dump_mode & DUMP_JITED)
+			dump(info.id, DUMP_JITED, base_filename, prog_name);
+		if (env.dump_mode & DUMP_XLATED)
+			dump(info.id, DUMP_XLATED, base_filename, prog_name);
+	}
+
+	parse_verif_log(buf, buf_sz, stats);
+
+	if (env.verbose) {
+		printf("PROCESSING %s/%s, DURATION US: %ld, VERDICT: %s, VERIFIER LOG:\n%s\n",
+		       filename, prog_name, stats->stats[DURATION],
+		       err ? "failure" : "success", buf);
+	}
+	if (env.top_src_lines > 0)
+		print_top_src_lines(buf, buf_sz, stats->prog_name);
+
+	if (verif_log_buf != buf)
+		free(buf);
+
+	return 0;
+}
+
+static int append_preset_atom(struct var_preset *preset, char *value, bool is_index)
+{
+	struct field_access *tmp;
+	int i = preset->atom_count;
+	int err;
+
+	tmp = reallocarray(preset->atoms, i + 1, sizeof(*preset->atoms));
+	if (!tmp)
+		return -ENOMEM;
+
+	preset->atoms = tmp;
+	preset->atom_count++;
+
+	if (is_index) {
+		preset->atoms[i].type = ARRAY_INDEX;
+		err = parse_rvalue(value, &preset->atoms[i].index);
+		if (err)
+			return err;
+	} else {
+		preset->atoms[i].type = FIELD_NAME;
+		preset->atoms[i].name = strdup(value);
+		if (!preset->atoms[i].name)
+			return -ENOMEM;
+	}
+	return 0;
+}
+
+static int parse_var_atoms(const char *full_var, struct var_preset *preset)
+{
+	char expr[256], var[256], *name, *saveptr;
+	int n, len, off, err;
+
+	snprintf(expr, sizeof(expr), "%s", full_var);
+	preset->atom_count = 0;
+	while ((name = strtok_r(preset->atom_count ? NULL : expr, ".", &saveptr))) {
+		len = strlen(name);
+		/* parse variable name */
+		if (sscanf(name, "%[a-zA-Z0-9_] %n", var, &off) != 1) {
+			fprintf(stderr, "Can't parse %s\n", name);
+			return -EINVAL;
+		}
+		err = append_preset_atom(preset, var, false);
+		if (err)
+			return err;
+
+		/* parse optional array indexes */
+		while (off < len) {
+			if (sscanf(name + off, " [ %[a-zA-Z0-9_] ] %n", var, &n) != 1) {
+				fprintf(stderr, "Can't parse %s as index\n", name + off);
+				return -EINVAL;
+			}
+			err = append_preset_atom(preset, var, true);
+			if (err)
+				return err;
+			off += n;
+		}
+	}
+	return 0;
+}
+
+static int append_var_preset(struct var_preset **presets, int *cnt, const char *expr)
+{
+	void *tmp;
+	struct var_preset *cur;
+	char var[256], val[256];
+	int n, err;
+
+	tmp = realloc(*presets, (*cnt + 1) * sizeof(**presets));
+	if (!tmp)
+		return -ENOMEM;
+	*presets = tmp;
+	cur = &(*presets)[*cnt];
+	memset(cur, 0, sizeof(*cur));
+	(*cnt)++;
+
+	if (sscanf(expr, " %[][a-zA-Z0-9_. ] = %s %n", var, val, &n) != 2 || n != strlen(expr)) {
+		fprintf(stderr, "Failed to parse expression '%s'\n", expr);
+		return -EINVAL;
+	}
+	/* Remove trailing spaces from var, as scanf may add those */
+	rtrim(var);
+
+	err = parse_rvalue(val, &cur->value);
+	if (err)
+		return err;
+
+	cur->full_name = strdup(var);
+	if (!cur->full_name)
+		return -ENOMEM;
+
+	err = parse_var_atoms(var, cur);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int append_var_preset_file(const char *filename)
+{
+	char buf[1024];
+	FILE *f;
+	int err = 0;
+
+	f = fopen(filename, "rt");
+	if (!f) {
+		err = -errno;
+		fprintf(stderr, "Failed to open presets in '%s': %s\n", filename, strerror(-err));
+		return -EINVAL;
+	}
+
+	while (fscanf(f, " %1023[^\n]\n", buf) == 1) {
+		if (buf[0] == '\0' || buf[0] == '#')
+			continue;
+
+		err = append_var_preset(&env.presets, &env.npresets, buf);
+		if (err)
+			goto cleanup;
+	}
+
+cleanup:
+	fclose(f);
+	return err;
+}
+
+static bool is_signed_type(const struct btf_type *t)
+{
+	if (btf_is_int(t))
+		return btf_int_encoding(t) & BTF_INT_SIGNED;
+	if (btf_is_any_enum(t))
+		return btf_kflag(t);
+	return true;
+}
+
+static int enum_value_from_name(const struct btf *btf, const struct btf_type *t,
+				const char *evalue, long long *retval)
+{
+	if (btf_is_enum(t)) {
+		struct btf_enum *e = btf_enum(t);
+		int i, n = btf_vlen(t);
+
+		for (i = 0; i < n; ++i, ++e) {
+			const char *cur_name = btf__name_by_offset(btf, e->name_off);
+
+			if (strcmp(cur_name, evalue) == 0) {
+				*retval = e->val;
+				return 0;
+			}
+		}
+	} else if (btf_is_enum64(t)) {
+		struct btf_enum64 *e = btf_enum64(t);
+		int i, n = btf_vlen(t);
+
+		for (i = 0; i < n; ++i, ++e) {
+			const char *cur_name = btf__name_by_offset(btf, e->name_off);
+			__u64 value =  btf_enum64_value(e);
+
+			if (strcmp(cur_name, evalue) == 0) {
+				*retval = value;
+				return 0;
+			}
+		}
+	}
+	return -EINVAL;
+}
+
+static bool is_preset_supported(const struct btf_type *t)
+{
+	return btf_is_int(t) || btf_is_enum(t) || btf_is_enum64(t);
+}
+
+static int find_enum_value(const struct btf *btf, const char *name, long long *value)
+{
+	const struct btf_type *t;
+	int cnt, i;
+	long long lvalue;
+
+	cnt = btf__type_cnt(btf);
+	for (i = 1; i != cnt; ++i) {
+		t = btf__type_by_id(btf, i);
+
+		if (!btf_is_any_enum(t))
+			continue;
+
+		if (enum_value_from_name(btf, t, name, &lvalue) == 0) {
+			*value = lvalue;
+			return 0;
+		}
+	}
+	return -ESRCH;
+}
+
+static int resolve_rvalue(struct btf *btf, const struct rvalue *rvalue, long long *result)
+{
+	int err = 0;
+
+	switch (rvalue->type) {
+	case INTEGRAL:
+		*result = rvalue->ivalue;
+		return 0;
+	case ENUMERATOR:
+		err = find_enum_value(btf, rvalue->svalue, result);
+		if (err) {
+			fprintf(stderr, "Can't resolve enum value %s\n", rvalue->svalue);
+			return err;
+		}
+		return 0;
+	default:
+		fprintf(stderr, "Unknown rvalue type\n");
+		return -EOPNOTSUPP;
+	}
+	return 0;
+}
+
+static int adjust_var_secinfo_array(struct btf *btf, int tid, struct field_access *atom,
+				    const char *array_name, struct btf_var_secinfo *sinfo)
+{
+	const struct btf_type *t;
+	struct btf_array *barr;
+	long long idx;
+	int err;
+
+	tid = btf__resolve_type(btf, tid);
+	t = btf__type_by_id(btf, tid);
+	if (!btf_is_array(t)) {
+		fprintf(stderr, "Array index is not expected for %s\n",
+			array_name);
+		return -EINVAL;
+	}
+	barr = btf_array(t);
+	err = resolve_rvalue(btf, &atom->index, &idx);
+	if (err)
+		return err;
+	if (idx < 0 || idx >= barr->nelems) {
+		fprintf(stderr, "Array index %lld is out of bounds [0, %u): %s\n",
+			idx, barr->nelems, array_name);
+		return -EINVAL;
+	}
+	sinfo->size = btf__resolve_size(btf, barr->type);
+	sinfo->offset += sinfo->size * idx;
+	sinfo->type = btf__resolve_type(btf, barr->type);
+	return 0;
+}
+
+static int adjust_var_secinfo_member(const struct btf *btf,
+				     const struct btf_type *parent_type,
+				     __u32 parent_offset,
+				     const char *member_name,
+				     struct btf_var_secinfo *sinfo)
+{
+	int i;
+
+	if (!btf_is_composite(parent_type)) {
+		fprintf(stderr, "Can't resolve field %s for non-composite type\n", member_name);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < btf_vlen(parent_type); ++i) {
+		const struct btf_member *member;
+		const struct btf_type *member_type;
+		int tid, off;
+
+		member = btf_members(parent_type) + i;
+		tid =  btf__resolve_type(btf, member->type);
+		if (tid < 0)
+			return -EINVAL;
+
+		member_type = btf__type_by_id(btf, tid);
+		off = parent_offset + member->offset;
+		if (member->name_off) {
+			const char *name = btf__name_by_offset(btf, member->name_off);
+
+			if (strcmp(member_name, name) == 0) {
+				if (btf_member_bitfield_size(parent_type, i) != 0) {
+					fprintf(stderr, "Bitfield presets are not supported %s\n",
+						name);
+					return -EINVAL;
+				}
+				sinfo->offset += off / 8;
+				sinfo->type = tid;
+				sinfo->size = member_type->size;
+				return 0;
+			}
+		} else if (btf_is_composite(member_type)) {
+			int err;
+
+			err = adjust_var_secinfo_member(btf, member_type, off,
+							member_name, sinfo);
+			if (!err)
+				return 0;
+		}
+	}
+
+	return -ESRCH;
+}
+
+static int adjust_var_secinfo(struct btf *btf, const struct btf_type *t,
+			      struct btf_var_secinfo *sinfo, struct var_preset *preset)
+{
+	const struct btf_type *base_type;
+	const char *prev_name;
+	int err, i;
+	int tid;
+
+	assert(preset->atom_count > 0);
+	assert(preset->atoms[0].type == FIELD_NAME);
+
+	tid = btf__resolve_type(btf, t->type);
+	base_type = btf__type_by_id(btf, tid);
+	prev_name = preset->atoms[0].name;
+
+	for (i = 1; i < preset->atom_count; ++i) {
+		struct field_access *atom = preset->atoms + i;
+
+		switch (atom->type) {
+		case ARRAY_INDEX:
+			err = adjust_var_secinfo_array(btf, tid, atom, prev_name, sinfo);
+			break;
+		case FIELD_NAME:
+			err = adjust_var_secinfo_member(btf, base_type, 0, atom->name, sinfo);
+			if (err == -ESRCH)
+				fprintf(stderr, "Can't find '%s'\n", atom->name);
+			prev_name = atom->name;
+			break;
+		default:
+			fprintf(stderr, "Unknown field_access type\n");
+			return -EOPNOTSUPP;
+		}
+		if (err)
+			return err;
+		base_type = btf__type_by_id(btf, sinfo->type);
+		tid = sinfo->type;
+	}
+
+	return 0;
+}
+
+static int set_global_var(struct bpf_object *obj, struct btf *btf,
+			  struct bpf_map *map, struct btf_var_secinfo *sinfo,
+			  struct var_preset *preset)
+{
+	const struct btf_type *base_type;
+	void *ptr;
+	long long value = preset->value.ivalue;
+	size_t size;
+
+	base_type = btf__type_by_id(btf, btf__resolve_type(btf, sinfo->type));
+	if (!base_type) {
+		fprintf(stderr, "Failed to resolve type %d\n", sinfo->type);
+		return -EINVAL;
+	}
+	if (!is_preset_supported(base_type)) {
+		fprintf(stderr, "Can't set %s. Only ints and enums are supported\n",
+			preset->full_name);
+		return -EINVAL;
+	}
+
+	if (preset->value.type == ENUMERATOR) {
+		if (btf_is_any_enum(base_type)) {
+			if (enum_value_from_name(btf, base_type, preset->value.svalue, &value)) {
+				fprintf(stderr,
+					"Failed to find integer value for enum element %s\n",
+					preset->value.svalue);
+				return -EINVAL;
+			}
+		} else {
+			fprintf(stderr, "Value %s is not supported for type %s\n",
+				preset->value.svalue,
+				btf__name_by_offset(btf, base_type->name_off));
+			return -EINVAL;
+		}
+	}
+
+	/* Check if value fits into the target variable size */
+	if  (sinfo->size < sizeof(value)) {
+		bool is_signed = is_signed_type(base_type);
+		__u32 unsigned_bits = sinfo->size * 8 - (is_signed ? 1 : 0);
+		long long max_val = 1ll << unsigned_bits;
+
+		if (value >= max_val || value < -max_val) {
+			fprintf(stderr,
+				"Variable %s value %lld is out of range [%lld; %lld]\n",
+				btf__name_by_offset(btf, base_type->name_off), value,
+				is_signed ? -max_val : 0, max_val - 1);
+			return -EINVAL;
+		}
+	}
+
+	ptr = bpf_map__initial_value(map, &size);
+	if (!ptr || sinfo->offset + sinfo->size > size)
+		return -EINVAL;
+
+	if (__BYTE_ORDER == __LITTLE_ENDIAN) {
+		memcpy(ptr + sinfo->offset, &value, sinfo->size);
+	} else { /* __BYTE_ORDER == __BIG_ENDIAN */
+		__u8 src_offset = sizeof(value) - sinfo->size;
+
+		memcpy(ptr + sinfo->offset, (void *)&value + src_offset, sinfo->size);
+	}
+	return 0;
+}
+
+static int set_global_vars(struct bpf_object *obj, struct var_preset *presets, int npresets)
+{
+	struct btf_var_secinfo *sinfo;
+	const char *sec_name;
+	const struct btf_type *t;
+	struct bpf_map *map;
+	struct btf *btf;
+	int i, j, k, n, cnt, err = 0;
+
+	if (npresets == 0)
+		return 0;
+
+	btf = bpf_object__btf(obj);
+	if (!btf)
+		return -EINVAL;
+
+	cnt = btf__type_cnt(btf);
+	for (i = 1; i != cnt; ++i) {
+		t = btf__type_by_id(btf, i);
+
+		if (!btf_is_datasec(t))
+			continue;
+
+		sinfo = btf_var_secinfos(t);
+		sec_name = btf__name_by_offset(btf, t->name_off);
+		map = bpf_object__find_map_by_name(obj, sec_name);
+		if (!map)
+			continue;
+
+		n = btf_vlen(t);
+		for (j = 0; j < n; ++j, ++sinfo) {
+			const struct btf_type *var_type = btf__type_by_id(btf, sinfo->type);
+			const char *var_name;
+
+			if (!btf_is_var(var_type))
+				continue;
+
+			var_name = btf__name_by_offset(btf, var_type->name_off);
+
+			for (k = 0; k < npresets; ++k) {
+				struct btf_var_secinfo tmp_sinfo;
+
+				if (strcmp(var_name, presets[k].atoms[0].name) != 0)
+					continue;
+
+				if (presets[k].applied) {
+					fprintf(stderr, "Variable %s is set more than once",
+						var_name);
+					return -EINVAL;
+				}
+				tmp_sinfo = *sinfo;
+				err = adjust_var_secinfo(btf, var_type,
+							 &tmp_sinfo, presets + k);
+				if (err)
+					return err;
+
+				err = set_global_var(obj, btf, map, &tmp_sinfo, presets + k);
+				if (err)
+					return err;
+
+				presets[k].applied = true;
+			}
+		}
+	}
+	for (i = 0; i < npresets; ++i) {
+		if (!presets[i].applied) {
+			fprintf(stderr, "Global variable preset %s has not been applied\n",
+				presets[i].full_name);
+			err = -EINVAL;
+		}
+		presets[i].applied = false;
+	}
+	return err;
+}
+
+static int process_obj(const char *filename)
+{
+	const char *base_filename = basename(strdupa(filename));
+	struct bpf_object *obj = NULL, *tobj;
+	struct bpf_program *prog, *tprog, *lprog;
+	libbpf_print_fn_t old_libbpf_print_fn;
+	LIBBPF_OPTS(bpf_object_open_opts, opts);
+	int err = 0, prog_cnt = 0;
+
+	if (!should_process_file_prog(base_filename, NULL)) {
+		if (env.verbose)
+			printf("Skipping '%s' due to filters...\n", filename);
+		env.files_skipped++;
+		return 0;
+	}
+	if (!is_bpf_obj_file(filename)) {
+		if (env.verbose)
+			printf("Skipping '%s' as it's not a BPF object file...\n", filename);
+		env.files_skipped++;
+		return 0;
+	}
+
+	if (!env.quiet && env.out_fmt == RESFMT_TABLE)
+		printf("Processing '%s'...\n", base_filename);
+
+	old_libbpf_print_fn = libbpf_set_print(libbpf_print_fn);
+	obj = bpf_object__open_file(filename, &opts);
+	if (!obj) {
+		/* if libbpf can't open BPF object file, it could be because
+		 * that BPF object file is incomplete and has to be statically
+		 * linked into a final BPF object file; instead of bailing
+		 * out, report it into stderr, mark it as skipped, and
+		 * proceed
+		 */
+		fprintf(stderr, "Failed to open '%s': %d\n", filename, -errno);
+		env.files_skipped++;
+		err = 0;
+		goto cleanup;
+	}
+
+	env.files_processed++;
+
+	bpf_object__for_each_program(prog, obj) {
+		prog_cnt++;
+	}
+
+	if (prog_cnt == 1) {
+		prog = bpf_object__next_program(obj, NULL);
+		bpf_program__set_autoload(prog, true);
+		err = set_global_vars(obj, env.presets, env.npresets);
+		if (err) {
+			fprintf(stderr, "Failed to set global variables %d\n", err);
+			goto cleanup;
+		}
+		process_prog(filename, obj, prog);
+		goto cleanup;
+	}
+
+	bpf_object__for_each_program(prog, obj) {
+		const char *prog_name = bpf_program__name(prog);
+
+		tobj = bpf_object__open_file(filename, &opts);
+		if (!tobj) {
+			err = -errno;
+			fprintf(stderr, "Failed to open '%s': %d\n", filename, err);
+			goto cleanup;
+		}
+
+		err = set_global_vars(tobj, env.presets, env.npresets);
+		if (err) {
+			fprintf(stderr, "Failed to set global variables %d\n", err);
+			goto cleanup;
+		}
+
+		lprog = NULL;
+		bpf_object__for_each_program(tprog, tobj) {
+			const char *tprog_name = bpf_program__name(tprog);
+
+			if (strcmp(prog_name, tprog_name) == 0) {
+				bpf_program__set_autoload(tprog, true);
+				lprog = tprog;
+			} else {
+				bpf_program__set_autoload(tprog, false);
+			}
+		}
+
+		process_prog(filename, tobj, lprog);
+		bpf_object__close(tobj);
+	}
+
+cleanup:
+	bpf_object__close(obj);
+	libbpf_set_print(old_libbpf_print_fn);
+	return err;
+}
+
+static int cmp_stat(const struct verif_stats *s1, const struct verif_stats *s2,
+		    enum stat_id id, bool asc, bool abs)
+{
+	int cmp = 0;
+
+	switch (id) {
+	case FILE_NAME:
+		cmp = strcmp(s1->file_name, s2->file_name);
+		break;
+	case PROG_NAME:
+		cmp = strcmp(s1->prog_name, s2->prog_name);
+		break;
+	case ATTACH_TYPE:
+	case PROG_TYPE:
+	case SIZE:
+	case JITED_SIZE:
+	case STACK:
+	case VERDICT:
+	case DURATION:
+	case TOTAL_INSNS:
+	case TOTAL_STATES:
+	case PEAK_STATES:
+	case MAX_STATES_PER_INSN:
+	case MEMORY_PEAK:
+	case MARK_READ_MAX_LEN: {
+		long v1 = s1->stats[id];
+		long v2 = s2->stats[id];
+
+		if (abs) {
+			v1 = v1 < 0 ? -v1 : v1;
+			v2 = v2 < 0 ? -v2 : v2;
+		}
+
+		if (v1 != v2)
+			cmp = v1 < v2 ? -1 : 1;
+		break;
+	}
+	default:
+		fprintf(stderr, "Unrecognized stat #%d\n", id);
+		exit(1);
+	}
+
+	return asc ? cmp : -cmp;
+}
+
+static int cmp_prog_stats(const void *v1, const void *v2)
+{
+	const struct verif_stats *s1 = v1, *s2 = v2;
+	int i, cmp;
+
+	for (i = 0; i < env.sort_spec.spec_cnt; i++) {
+		cmp = cmp_stat(s1, s2, env.sort_spec.ids[i],
+			       env.sort_spec.asc[i], env.sort_spec.abs[i]);
+		if (cmp != 0)
+			return cmp;
+	}
+
+	/* always disambiguate with file+prog, which are unique */
+	cmp = strcmp(s1->file_name, s2->file_name);
+	if (cmp != 0)
+		return cmp;
+	return strcmp(s1->prog_name, s2->prog_name);
+}
+
+static void fetch_join_stat_value(const struct verif_stats_join *s,
+				  enum stat_id id, enum stat_variant var,
+				  const char **str_val,
+				  double *num_val)
+{
+	long v1, v2;
+
+	if (id == FILE_NAME) {
+		*str_val = s->file_name;
+		return;
+	}
+	if (id == PROG_NAME) {
+		*str_val = s->prog_name;
+		return;
+	}
+
+	v1 = s->stats_a ? s->stats_a->stats[id] : 0;
+	v2 = s->stats_b ? s->stats_b->stats[id] : 0;
+
+	switch (var) {
+	case VARIANT_A:
+		if (!s->stats_a)
+			*num_val = -DBL_MAX;
+		else
+			*num_val = s->stats_a->stats[id];
+		return;
+	case VARIANT_B:
+		if (!s->stats_b)
+			*num_val = -DBL_MAX;
+		else
+			*num_val = s->stats_b->stats[id];
+		return;
+	case VARIANT_DIFF:
+		if (!s->stats_a || !s->stats_b)
+			*num_val = -DBL_MAX;
+		else if (id == VERDICT)
+			*num_val = v1 == v2 ? 1.0 /* MATCH */ : 0.0 /* MISMATCH */;
+		else
+			*num_val = (double)(v2 - v1);
+		return;
+	case VARIANT_PCT:
+		if (!s->stats_a || !s->stats_b) {
+			*num_val = -DBL_MAX;
+		} else if (v1 == 0) {
+			if (v1 == v2)
+				*num_val = 0.0;
+			else
+				*num_val = v2 < v1 ? -100.0 : 100.0;
+		} else {
+			 *num_val = (v2 - v1) * 100.0 / v1;
+		}
+		return;
+	}
+}
+
+static int cmp_join_stat(const struct verif_stats_join *s1,
+			 const struct verif_stats_join *s2,
+			 enum stat_id id, enum stat_variant var,
+			 bool asc, bool abs)
+{
+	const char *str1 = NULL, *str2 = NULL;
+	double v1 = 0.0, v2 = 0.0;
+	int cmp = 0;
+
+	fetch_join_stat_value(s1, id, var, &str1, &v1);
+	fetch_join_stat_value(s2, id, var, &str2, &v2);
+
+	if (abs) {
+		v1 = fabs(v1);
+		v2 = fabs(v2);
+	}
+
+	if (str1)
+		cmp = strcmp(str1, str2);
+	else if (v1 != v2)
+		cmp = v1 < v2 ? -1 : 1;
+
+	return asc ? cmp : -cmp;
+}
+
+static int cmp_join_stats(const void *v1, const void *v2)
+{
+	const struct verif_stats_join *s1 = v1, *s2 = v2;
+	int i, cmp;
+
+	for (i = 0; i < env.sort_spec.spec_cnt; i++) {
+		cmp = cmp_join_stat(s1, s2,
+				    env.sort_spec.ids[i],
+				    env.sort_spec.variants[i],
+				    env.sort_spec.asc[i],
+				    env.sort_spec.abs[i]);
+		if (cmp != 0)
+			return cmp;
+	}
+
+	/* always disambiguate with file+prog, which are unique */
+	cmp = strcmp(s1->file_name, s2->file_name);
+	if (cmp != 0)
+		return cmp;
+	return strcmp(s1->prog_name, s2->prog_name);
+}
+
+#define HEADER_CHAR '-'
+#define COLUMN_SEP "  "
+
+static void output_header_underlines(void)
+{
+	int i, j, len;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		len = env.output_spec.lens[i];
+
+		printf("%s", i == 0 ? "" : COLUMN_SEP);
+		for (j = 0; j < len; j++)
+			printf("%c", HEADER_CHAR);
+	}
+	printf("\n");
+}
+
+static void output_headers(enum resfmt fmt)
+{
+	const char *fmt_str;
+	int i, len;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		int id = env.output_spec.ids[i];
+		int *max_len = &env.output_spec.lens[i];
+
+		switch (fmt) {
+		case RESFMT_TABLE_CALCLEN:
+			len = snprintf(NULL, 0, "%s", stat_defs[id].header);
+			if (len > *max_len)
+				*max_len = len;
+			break;
+		case RESFMT_TABLE:
+			fmt_str = stat_defs[id].left_aligned ? "%s%-*s" : "%s%*s";
+			printf(fmt_str, i == 0 ? "" : COLUMN_SEP,  *max_len, stat_defs[id].header);
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		case RESFMT_CSV:
+			printf("%s%s", i == 0 ? "" : ",", stat_defs[id].names[0]);
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		}
+	}
+
+	if (fmt == RESFMT_TABLE)
+		output_header_underlines();
+}
+
+static void prepare_value(const struct verif_stats *s, enum stat_id id,
+			  const char **str, long *val)
+{
+	switch (id) {
+	case FILE_NAME:
+		*str = s ? s->file_name : "N/A";
+		break;
+	case PROG_NAME:
+		*str = s ? s->prog_name : "N/A";
+		break;
+	case VERDICT:
+		if (!s)
+			*str = "N/A";
+		else
+			*str = s->stats[VERDICT] ? "success" : "failure";
+		break;
+	case ATTACH_TYPE:
+		if (!s)
+			*str = "N/A";
+		else
+			*str = libbpf_bpf_attach_type_str(s->stats[ATTACH_TYPE]) ?: "N/A";
+		break;
+	case PROG_TYPE:
+		if (!s)
+			*str = "N/A";
+		else
+			*str = libbpf_bpf_prog_type_str(s->stats[PROG_TYPE]) ?: "N/A";
+		break;
+	case DURATION:
+	case TOTAL_INSNS:
+	case TOTAL_STATES:
+	case PEAK_STATES:
+	case MAX_STATES_PER_INSN:
+	case MARK_READ_MAX_LEN:
+	case STACK:
+	case SIZE:
+	case JITED_SIZE:
+	case MEMORY_PEAK:
+		*val = s ? s->stats[id] : 0;
+		break;
+	default:
+		fprintf(stderr, "Unrecognized stat #%d\n", id);
+		exit(1);
+	}
+}
+
+static void output_stats(const struct verif_stats *s, enum resfmt fmt, bool last)
+{
+	int i;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		int id = env.output_spec.ids[i];
+		int *max_len = &env.output_spec.lens[i], len;
+		const char *str = NULL;
+		long val = 0;
+
+		prepare_value(s, id, &str, &val);
+
+		switch (fmt) {
+		case RESFMT_TABLE_CALCLEN:
+			if (str)
+				len = snprintf(NULL, 0, "%s", str);
+			else
+				len = snprintf(NULL, 0, "%ld", val);
+			if (len > *max_len)
+				*max_len = len;
+			break;
+		case RESFMT_TABLE:
+			if (str)
+				printf("%s%-*s", i == 0 ? "" : COLUMN_SEP, *max_len, str);
+			else
+				printf("%s%*ld", i == 0 ? "" : COLUMN_SEP,  *max_len, val);
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		case RESFMT_CSV:
+			if (str)
+				printf("%s%s", i == 0 ? "" : ",", str);
+			else
+				printf("%s%ld", i == 0 ? "" : ",", val);
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		}
+	}
+
+	if (last && fmt == RESFMT_TABLE) {
+		output_header_underlines();
+		printf("Done. Processed %d files, %d programs. Skipped %d files, %d programs.\n",
+		       env.files_processed, env.files_skipped, env.progs_processed, env.progs_skipped);
+	}
+}
+
+static int parse_stat_value(const char *str, enum stat_id id, struct verif_stats *st)
+{
+	switch (id) {
+	case FILE_NAME:
+		st->file_name = strdup(str);
+		if (!st->file_name)
+			return -ENOMEM;
+		break;
+	case PROG_NAME:
+		st->prog_name = strdup(str);
+		if (!st->prog_name)
+			return -ENOMEM;
+		break;
+	case VERDICT:
+		if (strcmp(str, "success") == 0) {
+			st->stats[VERDICT] = true;
+		} else if (strcmp(str, "failure") == 0) {
+			st->stats[VERDICT] = false;
+		} else {
+			fprintf(stderr, "Unrecognized verification verdict '%s'\n", str);
+			return -EINVAL;
+		}
+		break;
+	case DURATION:
+	case TOTAL_INSNS:
+	case TOTAL_STATES:
+	case PEAK_STATES:
+	case MAX_STATES_PER_INSN:
+	case MARK_READ_MAX_LEN:
+	case SIZE:
+	case JITED_SIZE:
+	case MEMORY_PEAK:
+	case STACK: {
+		long val;
+		int err, n;
+
+		if (sscanf(str, "%ld %n", &val, &n) != 1 || n != strlen(str)) {
+			err = -errno;
+			fprintf(stderr, "Failed to parse '%s' as integer\n", str);
+			return err;
+		}
+
+		st->stats[id] = val;
+		break;
+	}
+	case PROG_TYPE: {
+		enum bpf_prog_type prog_type = 0;
+		const char *type;
+
+		while ((type = libbpf_bpf_prog_type_str(prog_type)))  {
+			if (strcmp(type, str) == 0) {
+				st->stats[id] = prog_type;
+				break;
+			}
+			prog_type++;
+		}
+
+		if (!type) {
+			fprintf(stderr, "Unrecognized prog type %s\n", str);
+			return -EINVAL;
+		}
+		break;
+	}
+	case ATTACH_TYPE: {
+		enum bpf_attach_type attach_type = 0;
+		const char *type;
+
+		while ((type = libbpf_bpf_attach_type_str(attach_type)))  {
+			if (strcmp(type, str) == 0) {
+				st->stats[id] = attach_type;
+				break;
+			}
+			attach_type++;
+		}
+
+		if (!type) {
+			fprintf(stderr, "Unrecognized attach type %s\n", str);
+			return -EINVAL;
+		}
+		break;
+	}
+	default:
+		fprintf(stderr, "Unrecognized stat #%d\n", id);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int parse_stats_csv(const char *filename, struct stat_specs *specs,
+			   struct verif_stats **statsp, int *stat_cntp)
+{
+	char line[4096];
+	FILE *f;
+	int err = 0;
+	bool header = true;
+
+	f = fopen(filename, "r");
+	if (!f) {
+		err = -errno;
+		fprintf(stderr, "Failed to open '%s': %d\n", filename, err);
+		return err;
+	}
+
+	*stat_cntp = 0;
+
+	while (fgets(line, sizeof(line), f)) {
+		char *input = line, *state = NULL, *next;
+		struct verif_stats *st = NULL;
+		int col = 0, cnt = 0;
+
+		if (!header) {
+			void *tmp;
+
+			tmp = realloc(*statsp, (*stat_cntp + 1) * sizeof(**statsp));
+			if (!tmp) {
+				err = -ENOMEM;
+				goto cleanup;
+			}
+			*statsp = tmp;
+
+			st = &(*statsp)[*stat_cntp];
+			memset(st, 0, sizeof(*st));
+
+			*stat_cntp += 1;
+		}
+
+		while ((next = strtok_r(cnt++ ? NULL : input, ",\n", &state))) {
+			if (header) {
+				/* for the first line, set up spec stats */
+				err = parse_stat(next, specs);
+				if (err)
+					goto cleanup;
+				continue;
+			}
+
+			/* for all other lines, parse values based on spec */
+			if (col >= specs->spec_cnt) {
+				fprintf(stderr, "Found extraneous column #%d in row #%d of '%s'\n",
+					col, *stat_cntp, filename);
+				err = -EINVAL;
+				goto cleanup;
+			}
+			err = parse_stat_value(next, specs->ids[col], st);
+			if (err)
+				goto cleanup;
+			col++;
+		}
+
+		if (header) {
+			header = false;
+			continue;
+		}
+
+		if (col < specs->spec_cnt) {
+			fprintf(stderr, "Not enough columns in row #%d in '%s'\n",
+				*stat_cntp, filename);
+			err = -EINVAL;
+			goto cleanup;
+		}
+
+		if (!st->file_name || !st->prog_name) {
+			fprintf(stderr, "Row #%d in '%s' is missing file and/or program name\n",
+				*stat_cntp, filename);
+			err = -EINVAL;
+			goto cleanup;
+		}
+
+		/* in comparison mode we can only check filters after we
+		 * parsed entire line; if row should be ignored we pretend we
+		 * never parsed it
+		 */
+		if (!should_process_file_prog(st->file_name, st->prog_name)) {
+			free(st->file_name);
+			free(st->prog_name);
+			*stat_cntp -= 1;
+		}
+	}
+
+	if (!feof(f)) {
+		err = -errno;
+		fprintf(stderr, "Failed I/O for '%s': %d\n", filename, err);
+	}
+
+cleanup:
+	fclose(f);
+	return err;
+}
+
+/* empty/zero stats for mismatched rows */
+static const struct verif_stats fallback_stats = { .file_name = "", .prog_name = "" };
+
+static bool is_key_stat(enum stat_id id)
+{
+	return id == FILE_NAME || id == PROG_NAME;
+}
+
+static void output_comp_header_underlines(void)
+{
+	int i, j, k;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		int id = env.output_spec.ids[i];
+		int max_j = is_key_stat(id) ? 1 : 3;
+
+		for (j = 0; j < max_j; j++) {
+			int len = env.output_spec.lens[3 * i + j];
+
+			printf("%s", i + j == 0 ? "" : COLUMN_SEP);
+
+			for (k = 0; k < len; k++)
+				printf("%c", HEADER_CHAR);
+		}
+	}
+	printf("\n");
+}
+
+static void output_comp_headers(enum resfmt fmt)
+{
+	static const char *table_sfxs[3] = {" (A)", " (B)", " (DIFF)"};
+	static const char *name_sfxs[3] = {"_base", "_comp", "_diff"};
+	int i, j, len;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		int id = env.output_spec.ids[i];
+		/* key stats don't have A/B/DIFF columns, they are common for both data sets */
+		int max_j = is_key_stat(id) ? 1 : 3;
+
+		for (j = 0; j < max_j; j++) {
+			int *max_len = &env.output_spec.lens[3 * i + j];
+			bool last = (i == env.output_spec.spec_cnt - 1) && (j == max_j - 1);
+			const char *sfx;
+
+			switch (fmt) {
+			case RESFMT_TABLE_CALCLEN:
+				sfx = is_key_stat(id) ? "" : table_sfxs[j];
+				len = snprintf(NULL, 0, "%s%s", stat_defs[id].header, sfx);
+				if (len > *max_len)
+					*max_len = len;
+				break;
+			case RESFMT_TABLE:
+				sfx = is_key_stat(id) ? "" : table_sfxs[j];
+				printf("%s%-*s%s", i + j == 0 ? "" : COLUMN_SEP,
+				       *max_len - (int)strlen(sfx), stat_defs[id].header, sfx);
+				if (last)
+					printf("\n");
+				break;
+			case RESFMT_CSV:
+				sfx = is_key_stat(id) ? "" : name_sfxs[j];
+				printf("%s%s%s", i + j == 0 ? "" : ",", stat_defs[id].names[0], sfx);
+				if (last)
+					printf("\n");
+				break;
+			}
+		}
+	}
+
+	if (fmt == RESFMT_TABLE)
+		output_comp_header_underlines();
+}
+
+static void output_comp_stats(const struct verif_stats_join *join_stats,
+			      enum resfmt fmt, bool last)
+{
+	const struct verif_stats *base = join_stats->stats_a;
+	const struct verif_stats *comp = join_stats->stats_b;
+	char base_buf[1024] = {}, comp_buf[1024] = {}, diff_buf[1024] = {};
+	int i;
+
+	for (i = 0; i < env.output_spec.spec_cnt; i++) {
+		int id = env.output_spec.ids[i], len;
+		int *max_len_base = &env.output_spec.lens[3 * i + 0];
+		int *max_len_comp = &env.output_spec.lens[3 * i + 1];
+		int *max_len_diff = &env.output_spec.lens[3 * i + 2];
+		const char *base_str = NULL, *comp_str = NULL;
+		long base_val = 0, comp_val = 0, diff_val = 0;
+
+		prepare_value(base, id, &base_str, &base_val);
+		prepare_value(comp, id, &comp_str, &comp_val);
+
+		/* normalize all the outputs to be in string buffers for simplicity */
+		if (is_key_stat(id)) {
+			/* key stats (file and program name) are always strings */
+			if (base)
+				snprintf(base_buf, sizeof(base_buf), "%s", base_str);
+			else
+				snprintf(base_buf, sizeof(base_buf), "%s", comp_str);
+		} else if (base_str) {
+			snprintf(base_buf, sizeof(base_buf), "%s", base_str);
+			snprintf(comp_buf, sizeof(comp_buf), "%s", comp_str);
+			if (!base || !comp)
+				snprintf(diff_buf, sizeof(diff_buf), "%s", "N/A");
+			else if (strcmp(base_str, comp_str) == 0)
+				snprintf(diff_buf, sizeof(diff_buf), "%s", "MATCH");
+			else
+				snprintf(diff_buf, sizeof(diff_buf), "%s", "MISMATCH");
+		} else {
+			double p = 0.0;
+
+			if (base)
+				snprintf(base_buf, sizeof(base_buf), "%ld", base_val);
+			else
+				snprintf(base_buf, sizeof(base_buf), "%s", "N/A");
+			if (comp)
+				snprintf(comp_buf, sizeof(comp_buf), "%ld", comp_val);
+			else
+				snprintf(comp_buf, sizeof(comp_buf), "%s", "N/A");
+
+			diff_val = comp_val - base_val;
+			if (!base || !comp) {
+				snprintf(diff_buf, sizeof(diff_buf), "%s", "N/A");
+			} else {
+				if (base_val == 0) {
+					if (comp_val == base_val)
+						p = 0.0; /* avoid +0 (+100%) case */
+					else
+						p = comp_val < base_val ? -100.0 : 100.0;
+				} else {
+					 p = diff_val * 100.0 / base_val;
+				}
+				snprintf(diff_buf, sizeof(diff_buf), "%+ld (%+.2lf%%)", diff_val, p);
+			}
+		}
+
+		switch (fmt) {
+		case RESFMT_TABLE_CALCLEN:
+			len = strlen(base_buf);
+			if (len > *max_len_base)
+				*max_len_base = len;
+			if (!is_key_stat(id)) {
+				len = strlen(comp_buf);
+				if (len > *max_len_comp)
+					*max_len_comp = len;
+				len = strlen(diff_buf);
+				if (len > *max_len_diff)
+					*max_len_diff = len;
+			}
+			break;
+		case RESFMT_TABLE: {
+			/* string outputs are left-aligned, number outputs are right-aligned */
+			const char *fmt = base_str ? "%s%-*s" : "%s%*s";
+
+			printf(fmt, i == 0 ? "" : COLUMN_SEP, *max_len_base, base_buf);
+			if (!is_key_stat(id)) {
+				printf(fmt, COLUMN_SEP, *max_len_comp, comp_buf);
+				printf(fmt, COLUMN_SEP, *max_len_diff, diff_buf);
+			}
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		}
+		case RESFMT_CSV:
+			printf("%s%s", i == 0 ? "" : ",", base_buf);
+			if (!is_key_stat(id)) {
+				printf("%s%s", i == 0 ? "" : ",", comp_buf);
+				printf("%s%s", i == 0 ? "" : ",", diff_buf);
+			}
+			if (i == env.output_spec.spec_cnt - 1)
+				printf("\n");
+			break;
+		}
+	}
+
+	if (last && fmt == RESFMT_TABLE)
+		output_comp_header_underlines();
+}
+
+static int cmp_stats_key(const struct verif_stats *base, const struct verif_stats *comp)
+{
+	int r;
+
+	r = strcmp(base->file_name, comp->file_name);
+	if (r != 0)
+		return r;
+	return strcmp(base->prog_name, comp->prog_name);
+}
+
+static bool is_join_stat_filter_matched(struct filter *f, const struct verif_stats_join *stats)
+{
+	static const double eps = 1e-9;
+	const char *str = NULL;
+	double value = 0.0;
+
+	fetch_join_stat_value(stats, f->stat_id, f->stat_var, &str, &value);
+
+	if (f->abs)
+		value = fabs(value);
+
+	switch (f->op) {
+	case OP_EQ: return value > f->value - eps && value < f->value + eps;
+	case OP_NEQ: return value < f->value - eps || value > f->value + eps;
+	case OP_LT: return value < f->value - eps;
+	case OP_LE: return value <= f->value + eps;
+	case OP_GT: return value > f->value + eps;
+	case OP_GE: return value >= f->value - eps;
+	}
+
+	fprintf(stderr, "BUG: unknown filter op %d!\n", f->op);
+	return false;
+}
+
+static bool should_output_join_stats(const struct verif_stats_join *stats)
+{
+	struct filter *f;
+	int i, allow_cnt = 0;
+
+	for (i = 0; i < env.deny_filter_cnt; i++) {
+		f = &env.deny_filters[i];
+		if (f->kind != FILTER_STAT)
+			continue;
+
+		if (is_join_stat_filter_matched(f, stats))
+			return false;
+	}
+
+	for (i = 0; i < env.allow_filter_cnt; i++) {
+		f = &env.allow_filters[i];
+		if (f->kind != FILTER_STAT)
+			continue;
+		allow_cnt++;
+
+		if (is_join_stat_filter_matched(f, stats))
+			return true;
+	}
+
+	/* if there are no stat allowed filters, pass everything through */
+	return allow_cnt == 0;
+}
+
+static int handle_comparison_mode(void)
+{
+	struct stat_specs base_specs = {}, comp_specs = {};
+	struct stat_specs tmp_sort_spec;
+	enum resfmt cur_fmt;
+	int err, i, j, last_idx, cnt;
+
+	if (env.filename_cnt != 2) {
+		fprintf(stderr, "Comparison mode expects exactly two input CSV files!\n\n");
+		argp_help(&argp, stderr, ARGP_HELP_USAGE, "veristat");
+		return -EINVAL;
+	}
+
+	err = parse_stats_csv(env.filenames[0], &base_specs,
+			      &env.baseline_stats, &env.baseline_stat_cnt);
+	if (err) {
+		fprintf(stderr, "Failed to parse stats from '%s': %d\n", env.filenames[0], err);
+		return err;
+	}
+	err = parse_stats_csv(env.filenames[1], &comp_specs,
+			      &env.prog_stats, &env.prog_stat_cnt);
+	if (err) {
+		fprintf(stderr, "Failed to parse stats from '%s': %d\n", env.filenames[1], err);
+		return err;
+	}
+
+	/* To keep it simple we validate that the set and order of stats in
+	 * both CSVs are exactly the same. This can be lifted with a bit more
+	 * pre-processing later.
+	 */
+	if (base_specs.spec_cnt != comp_specs.spec_cnt) {
+		fprintf(stderr, "Number of stats in '%s' and '%s' differs (%d != %d)!\n",
+			env.filenames[0], env.filenames[1],
+			base_specs.spec_cnt, comp_specs.spec_cnt);
+		return -EINVAL;
+	}
+	for (i = 0; i < base_specs.spec_cnt; i++) {
+		if (base_specs.ids[i] != comp_specs.ids[i]) {
+			fprintf(stderr, "Stats composition differs between '%s' and '%s' (%s != %s)!\n",
+				env.filenames[0], env.filenames[1],
+				stat_defs[base_specs.ids[i]].names[0],
+				stat_defs[comp_specs.ids[i]].names[0]);
+			return -EINVAL;
+		}
+	}
+
+	/* Replace user-specified sorting spec with file+prog sorting rule to
+	 * be able to join two datasets correctly. Once we are done, we will
+	 * restore the original sort spec.
+	 */
+	tmp_sort_spec = env.sort_spec;
+	env.sort_spec = join_sort_spec;
+	qsort(env.prog_stats, env.prog_stat_cnt, sizeof(*env.prog_stats), cmp_prog_stats);
+	qsort(env.baseline_stats, env.baseline_stat_cnt, sizeof(*env.baseline_stats), cmp_prog_stats);
+	env.sort_spec = tmp_sort_spec;
+
+	/* Join two datasets together. If baseline and comparison datasets
+	 * have different subset of rows (we match by 'object + prog' as
+	 * a unique key) then assume empty/missing/zero value for rows that
+	 * are missing in the opposite data set.
+	 */
+	i = j = 0;
+	while (i < env.baseline_stat_cnt || j < env.prog_stat_cnt) {
+		const struct verif_stats *base, *comp;
+		struct verif_stats_join *join;
+		void *tmp;
+		int r;
+
+		base = i < env.baseline_stat_cnt ? &env.baseline_stats[i] : &fallback_stats;
+		comp = j < env.prog_stat_cnt ? &env.prog_stats[j] : &fallback_stats;
+
+		if (!base->file_name || !base->prog_name) {
+			fprintf(stderr, "Entry #%d in '%s' doesn't have file and/or program name specified!\n",
+				i, env.filenames[0]);
+			return -EINVAL;
+		}
+		if (!comp->file_name || !comp->prog_name) {
+			fprintf(stderr, "Entry #%d in '%s' doesn't have file and/or program name specified!\n",
+				j, env.filenames[1]);
+			return -EINVAL;
+		}
+
+		tmp = realloc(env.join_stats, (env.join_stat_cnt + 1) * sizeof(*env.join_stats));
+		if (!tmp)
+			return -ENOMEM;
+		env.join_stats = tmp;
+
+		join = &env.join_stats[env.join_stat_cnt];
+		memset(join, 0, sizeof(*join));
+
+		r = cmp_stats_key(base, comp);
+		if (r == 0) {
+			join->file_name = base->file_name;
+			join->prog_name = base->prog_name;
+			join->stats_a = base;
+			join->stats_b = comp;
+			i++;
+			j++;
+		} else if (base != &fallback_stats && (comp == &fallback_stats || r < 0)) {
+			join->file_name = base->file_name;
+			join->prog_name = base->prog_name;
+			join->stats_a = base;
+			join->stats_b = NULL;
+			i++;
+		} else if (comp != &fallback_stats && (base == &fallback_stats || r > 0)) {
+			join->file_name = comp->file_name;
+			join->prog_name = comp->prog_name;
+			join->stats_a = NULL;
+			join->stats_b = comp;
+			j++;
+		} else {
+			fprintf(stderr, "%s:%d: should never reach here i=%i, j=%i",
+				__FILE__, __LINE__, i, j);
+			return -EINVAL;
+		}
+		env.join_stat_cnt += 1;
+	}
+
+	/* now sort joined results according to sort spec */
+	qsort(env.join_stats, env.join_stat_cnt, sizeof(*env.join_stats), cmp_join_stats);
+
+	/* for human-readable table output we need to do extra pass to
+	 * calculate column widths, so we substitute current output format
+	 * with RESFMT_TABLE_CALCLEN and later revert it back to RESFMT_TABLE
+	 * and do everything again.
+	 */
+	if (env.out_fmt == RESFMT_TABLE)
+		cur_fmt = RESFMT_TABLE_CALCLEN;
+	else
+		cur_fmt = env.out_fmt;
+
+one_more_time:
+	output_comp_headers(cur_fmt);
+
+	last_idx = -1;
+	cnt = 0;
+	for (i = 0; i < env.join_stat_cnt; i++) {
+		const struct verif_stats_join *join = &env.join_stats[i];
+
+		if (!should_output_join_stats(join))
+			continue;
+
+		if (env.top_n && cnt >= env.top_n)
+			break;
+
+		if (cur_fmt == RESFMT_TABLE_CALCLEN)
+			last_idx = i;
+
+		output_comp_stats(join, cur_fmt, i == last_idx);
+
+		cnt++;
+	}
+
+	if (cur_fmt == RESFMT_TABLE_CALCLEN) {
+		cur_fmt = RESFMT_TABLE;
+		goto one_more_time; /* ... this time with feeling */
+	}
+
+	return 0;
+}
+
+static bool is_stat_filter_matched(struct filter *f, const struct verif_stats *stats)
+{
+	long value = stats->stats[f->stat_id];
+
+	if (f->abs)
+		value = value < 0 ? -value : value;
+
+	switch (f->op) {
+	case OP_EQ: return value == f->value;
+	case OP_NEQ: return value != f->value;
+	case OP_LT: return value < f->value;
+	case OP_LE: return value <= f->value;
+	case OP_GT: return value > f->value;
+	case OP_GE: return value >= f->value;
+	}
+
+	fprintf(stderr, "BUG: unknown filter op %d!\n", f->op);
+	return false;
+}
+
+static bool should_output_stats(const struct verif_stats *stats)
+{
+	struct filter *f;
+	int i, allow_cnt = 0;
+
+	for (i = 0; i < env.deny_filter_cnt; i++) {
+		f = &env.deny_filters[i];
+		if (f->kind != FILTER_STAT)
+			continue;
+
+		if (is_stat_filter_matched(f, stats))
+			return false;
+	}
+
+	for (i = 0; i < env.allow_filter_cnt; i++) {
+		f = &env.allow_filters[i];
+		if (f->kind != FILTER_STAT)
+			continue;
+		allow_cnt++;
+
+		if (is_stat_filter_matched(f, stats))
+			return true;
+	}
+
+	/* if there are no stat allowed filters, pass everything through */
+	return allow_cnt == 0;
+}
+
+static void output_prog_stats(void)
+{
+	const struct verif_stats *stats;
+	int i, last_stat_idx = 0, cnt = 0;
+
+	if (env.out_fmt == RESFMT_TABLE) {
+		/* calculate column widths */
+		output_headers(RESFMT_TABLE_CALCLEN);
+		for (i = 0; i < env.prog_stat_cnt; i++) {
+			stats = &env.prog_stats[i];
+			if (!should_output_stats(stats))
+				continue;
+			output_stats(stats, RESFMT_TABLE_CALCLEN, false);
+			last_stat_idx = i;
+		}
+	}
+
+	/* actually output the table */
+	output_headers(env.out_fmt);
+	for (i = 0; i < env.prog_stat_cnt; i++) {
+		stats = &env.prog_stats[i];
+		if (!should_output_stats(stats))
+			continue;
+		if (env.top_n && cnt >= env.top_n)
+			break;
+		output_stats(stats, env.out_fmt, i == last_stat_idx);
+		cnt++;
+	}
+}
+
+static int handle_verif_mode(void)
+{
+	int i, err = 0;
+
+	if (env.filename_cnt == 0) {
+		fprintf(stderr, "Please provide path to BPF object file!\n\n");
+		argp_help(&argp, stderr, ARGP_HELP_USAGE, "veristat");
+		return -EINVAL;
+	}
+
+	create_stat_cgroup();
+	for (i = 0; i < env.filename_cnt; i++) {
+		err = process_obj(env.filenames[i]);
+		if (err) {
+			fprintf(stderr, "Failed to process '%s': %d\n", env.filenames[i], err);
+			goto out;
+		}
+	}
+
+	qsort(env.prog_stats, env.prog_stat_cnt, sizeof(*env.prog_stats), cmp_prog_stats);
+
+	output_prog_stats();
+
+out:
+	destroy_stat_cgroup();
+	return err;
+}
+
+static int handle_replay_mode(void)
+{
+	struct stat_specs specs = {};
+	int err;
+
+	if (env.filename_cnt != 1) {
+		fprintf(stderr, "Replay mode expects exactly one input CSV file!\n\n");
+		argp_help(&argp, stderr, ARGP_HELP_USAGE, "veristat");
+		return -EINVAL;
+	}
+
+	err = parse_stats_csv(env.filenames[0], &specs,
+			      &env.prog_stats, &env.prog_stat_cnt);
+	if (err) {
+		fprintf(stderr, "Failed to parse stats from '%s': %d\n", env.filenames[0], err);
+		return err;
+	}
+
+	qsort(env.prog_stats, env.prog_stat_cnt, sizeof(*env.prog_stats), cmp_prog_stats);
+
+	output_prog_stats();
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int err = 0, i, j;
+
+	if (argp_parse(&argp, argc, argv, 0, NULL, NULL))
+		return 1;
+
+	if (env.show_version) {
+		printf("%s\n", argp_program_version);
+		return 0;
+	}
+
+	if (env.verbose && env.quiet) {
+		fprintf(stderr, "Verbose and quiet modes are incompatible, please specify just one or neither!\n\n");
+		argp_help(&argp, stderr, ARGP_HELP_USAGE, "veristat");
+		return 1;
+	}
+	if (env.verbose && env.log_level == 0)
+		env.log_level = 1;
+
+	if (env.output_spec.spec_cnt == 0) {
+		if (env.out_fmt == RESFMT_CSV)
+			env.output_spec = default_csv_output_spec;
+		else
+			env.output_spec = default_output_spec;
+	}
+	if (env.sort_spec.spec_cnt == 0)
+		env.sort_spec = default_sort_spec;
+
+	if (env.comparison_mode && env.replay_mode) {
+		fprintf(stderr, "Can't specify replay and comparison mode at the same time!\n\n");
+		argp_help(&argp, stderr, ARGP_HELP_USAGE, "veristat");
+		return 1;
+	}
+
+	if (env.comparison_mode)
+		err = handle_comparison_mode();
+	else if (env.replay_mode)
+		err = handle_replay_mode();
+	else
+		err = handle_verif_mode();
+
+	free_verif_stats(env.prog_stats, env.prog_stat_cnt);
+	free_verif_stats(env.baseline_stats, env.baseline_stat_cnt);
+	free(env.join_stats);
+	for (i = 0; i < env.filename_cnt; i++)
+		free(env.filenames[i]);
+	free(env.filenames);
+	for (i = 0; i < env.allow_filter_cnt; i++) {
+		free(env.allow_filters[i].any_glob);
+		free(env.allow_filters[i].file_glob);
+		free(env.allow_filters[i].prog_glob);
+	}
+	free(env.allow_filters);
+	for (i = 0; i < env.deny_filter_cnt; i++) {
+		free(env.deny_filters[i].any_glob);
+		free(env.deny_filters[i].file_glob);
+		free(env.deny_filters[i].prog_glob);
+	}
+	free(env.deny_filters);
+	for (i = 0; i < env.npresets; ++i) {
+		free(env.presets[i].full_name);
+		for (j = 0; j < env.presets[i].atom_count; ++j) {
+			switch (env.presets[i].atoms[j].type) {
+			case FIELD_NAME:
+				free(env.presets[i].atoms[j].name);
+				break;
+			case ARRAY_INDEX:
+				if (env.presets[i].atoms[j].index.type == ENUMERATOR)
+					free(env.presets[i].atoms[j].index.svalue);
+				break;
+			}
+		}
+		free(env.presets[i].atoms);
+	}
+	free(env.presets);
+	return -err;
+}
diff --git a/tools/testing/selftests/bpf/veristat.cfg b/tools/testing/selftests/bpf/veristat.cfg
new file mode 100644
index 000000000000..e661ffdcaadf
--- /dev/null
+++ b/tools/testing/selftests/bpf/veristat.cfg
@@ -0,0 +1,18 @@
+# pre-canned list of rather complex selftests/bpf BPF object files to monitor
+# BPF verifier's performance on
+bpf_flow*
+bpf_loop_bench*
+loop*
+netif_receive_skb*
+profiler*
+pyperf*
+strobemeta*
+test_cls_redirect*
+test_l4lb
+test_sysctl*
+test_tcp_hdr_*
+test_usdt*
+test_verif_scale*
+test_xdp_noinline*
+xdp_synproxy*
+verifier_search_pruning*
diff --git a/tools/testing/selftests/bpf/vmtest.sh b/tools/testing/selftests/bpf/vmtest.sh
new file mode 100755
index 000000000000..2f869daf8a06
--- /dev/null
+++ b/tools/testing/selftests/bpf/vmtest.sh
@@ -0,0 +1,484 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+# This script currently only works for the following platforms,
+# as it is based on the VM image used by the BPF CI, which is
+# available only for these architectures. We can also specify
+# the local rootfs image generated by the following script:
+# https://github.com/libbpf/ci/blob/main/rootfs/mkrootfs_debian.sh
+PLATFORM="${PLATFORM:-$(uname -m)}"
+case "${PLATFORM}" in
+s390x)
+	QEMU_BINARY=qemu-system-s390x
+	QEMU_CONSOLE="ttyS1"
+	HOST_FLAGS=(-smp 2 -enable-kvm)
+	CROSS_FLAGS=(-smp 2)
+	BZIMAGE="arch/s390/boot/vmlinux"
+	ARCH="s390"
+	;;
+x86_64)
+	QEMU_BINARY=qemu-system-x86_64
+	QEMU_CONSOLE="ttyS0,115200"
+	HOST_FLAGS=(-cpu host -enable-kvm -smp 8)
+	CROSS_FLAGS=(-smp 8)
+	BZIMAGE="arch/x86/boot/bzImage"
+	ARCH="x86"
+	;;
+aarch64)
+	QEMU_BINARY=qemu-system-aarch64
+	QEMU_CONSOLE="ttyAMA0,115200"
+	HOST_FLAGS=(-M virt,gic-version=3 -cpu host -enable-kvm -smp 8)
+	CROSS_FLAGS=(-M virt,gic-version=3 -cpu cortex-a76 -smp 8)
+	BZIMAGE="arch/arm64/boot/Image"
+	ARCH="arm64"
+	;;
+riscv64)
+	# required qemu version v7.2.0+
+	QEMU_BINARY=qemu-system-riscv64
+	QEMU_CONSOLE="ttyS0,115200"
+	HOST_FLAGS=(-M virt -cpu host -enable-kvm -smp 8)
+	CROSS_FLAGS=(-M virt -cpu rv64,sscofpmf=true -smp 8)
+	BZIMAGE="arch/riscv/boot/Image"
+	ARCH="riscv"
+	;;
+ppc64el)
+	QEMU_BINARY=qemu-system-ppc64
+	QEMU_CONSOLE="hvc0"
+	# KVM could not be tested for powerpc, therefore not enabled for now.
+	HOST_FLAGS=(-machine pseries -cpu POWER9)
+	CROSS_FLAGS=(-machine pseries -cpu POWER9)
+	BZIMAGE="vmlinux"
+	ARCH="powerpc"
+	;;
+*)
+	echo "Unsupported architecture"
+	exit 1
+	;;
+esac
+DEFAULT_COMMAND="./test_progs"
+MOUNT_DIR="mnt"
+LOCAL_ROOTFS_IMAGE=""
+ROOTFS_IMAGE="root.img"
+OUTPUT_DIR="$HOME/.bpf_selftests"
+KCONFIG_REL_PATHS=("tools/testing/selftests/bpf/config"
+	"tools/testing/selftests/bpf/config.vm"
+	"tools/testing/selftests/bpf/config.${PLATFORM}")
+INDEX_URL="https://raw.githubusercontent.com/libbpf/ci/master/INDEX"
+NUM_COMPILE_JOBS="$(nproc)"
+LOG_FILE_BASE="$(date +"bpf_selftests.%Y-%m-%d_%H-%M-%S")"
+LOG_FILE="${LOG_FILE_BASE}.log"
+EXIT_STATUS_FILE="${LOG_FILE_BASE}.exit_status"
+
+usage()
+{
+	cat <<EOF
+Usage: $0 [-i] [-s] [-d <output_dir>] -- [<command>]
+
+<command> is the command you would normally run when you are in
+tools/testing/selftests/bpf. e.g:
+
+	$0 -- ./test_progs -t test_lsm
+
+If no command is specified and a debug shell (-s) is not requested,
+"${DEFAULT_COMMAND}" will be run by default.
+
+Using PLATFORM= and CROSS_COMPILE= options will enable cross platform testing:
+
+  PLATFORM=<platform> CROSS_COMPILE=<toolchain> $0 -- ./test_progs -t test_lsm
+
+If you build your kernel using KBUILD_OUTPUT= or O= options, these
+can be passed as environment variables to the script:
+
+  O=<kernel_build_path> $0 -- ./test_progs -t test_lsm
+
+or
+
+  KBUILD_OUTPUT=<kernel_build_path> $0 -- ./test_progs -t test_lsm
+
+Options:
+
+	-l)             Specify the path to the local rootfs image.
+	-i)		Update the rootfs image with a newer version.
+	-d)		Update the output directory (default: ${OUTPUT_DIR})
+	-j)		Number of jobs for compilation, similar to -j in make
+			(default: ${NUM_COMPILE_JOBS})
+	-s)		Instead of powering off the VM, start an interactive
+			shell. If <command> is specified, the shell runs after
+			the command finishes executing
+EOF
+}
+
+unset URLS
+populate_url_map()
+{
+	if ! declare -p URLS &> /dev/null; then
+		# URLS contain the mapping from file names to URLs where
+		# those files can be downloaded from.
+		declare -gA URLS
+		while IFS=$'\t' read -r name url; do
+			URLS["$name"]="$url"
+		done < <(curl -Lsf ${INDEX_URL})
+	fi
+}
+
+newest_rootfs_version()
+{
+	{
+	for file in "${!URLS[@]}"; do
+		if [[ $file =~ ^"${PLATFORM}"/libbpf-vmtest-rootfs-(.*)\.tar\.zst$ ]]; then
+			echo "${BASH_REMATCH[1]}"
+		fi
+	done
+	} | sort -rV | head -1
+}
+
+download_rootfs()
+{
+	populate_url_map
+
+	local rootfsversion="$(newest_rootfs_version)"
+	local file="${PLATFORM}/libbpf-vmtest-rootfs-$rootfsversion.tar.zst"
+
+	if [[ ! -v URLS[$file] ]]; then
+		echo "$file not found" >&2
+		return 1
+	fi
+
+	echo "Downloading $file..." >&2
+	curl -Lsf "${URLS[$file]}" "${@:2}"
+}
+
+load_rootfs()
+{
+	local dir="$1"
+
+	if ! which zstd &> /dev/null; then
+		echo 'Could not find "zstd" on the system, please install zstd'
+		exit 1
+	fi
+
+	if [[ -n "${LOCAL_ROOTFS_IMAGE}" ]]; then
+		cat "${LOCAL_ROOTFS_IMAGE}" | zstd -d | sudo tar -C "$dir" -x
+	else
+		download_rootfs | zstd -d | sudo tar -C "$dir" -x
+	fi
+}
+
+recompile_kernel()
+{
+	local kernel_checkout="$1"
+	local make_command="$2"
+
+	cd "${kernel_checkout}"
+
+	${make_command} olddefconfig
+	${make_command}
+}
+
+mount_image()
+{
+	local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
+	local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
+
+	sudo mount -o loop "${rootfs_img}" "${mount_dir}"
+}
+
+unmount_image()
+{
+	local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
+
+	sudo umount "${mount_dir}" &> /dev/null
+}
+
+update_selftests()
+{
+	local kernel_checkout="$1"
+	local selftests_dir="${kernel_checkout}/tools/testing/selftests/bpf"
+
+	cd "${selftests_dir}"
+	${make_command}
+
+	# Mount the image and copy the selftests to the image.
+	mount_image
+	sudo rm -rf "${mount_dir}/root/bpf"
+	sudo cp -r "${selftests_dir}" "${mount_dir}/root"
+	unmount_image
+}
+
+update_init_script()
+{
+	local init_script_dir="${OUTPUT_DIR}/${MOUNT_DIR}/etc/rcS.d"
+	local init_script="${init_script_dir}/S50-startup"
+	local command="$1"
+	local exit_command="$2"
+
+	mount_image
+
+	if [[ ! -d "${init_script_dir}" ]]; then
+		cat <<EOF
+Could not find ${init_script_dir} in the mounted image.
+This likely indicates a bad rootfs image, Please download
+a new image by passing "-i" to the script
+EOF
+		exit 1
+
+	fi
+
+	sudo bash -c "echo '#!/bin/bash' > ${init_script}"
+
+	if [[ "${command}" != "" ]]; then
+		sudo bash -c "cat >>${init_script}" <<EOF
+# Have a default value in the exit status file
+# incase the VM is forcefully stopped.
+echo "130" > "/root/${EXIT_STATUS_FILE}"
+
+{
+	cd /root/bpf
+	echo ${command}
+	stdbuf -oL -eL ${command}
+	echo "\$?" > "/root/${EXIT_STATUS_FILE}"
+} 2>&1 | tee "/root/${LOG_FILE}"
+# Ensure that the logs are written to disk
+sync
+EOF
+	fi
+
+	sudo bash -c "echo ${exit_command} >> ${init_script}"
+	sudo chmod a+x "${init_script}"
+	unmount_image
+}
+
+create_vm_image()
+{
+	local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
+	local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
+
+	rm -rf "${rootfs_img}"
+	touch "${rootfs_img}"
+	chattr +C "${rootfs_img}" >/dev/null 2>&1 || true
+
+	truncate -s 2G "${rootfs_img}"
+	mkfs.ext4 -q "${rootfs_img}"
+
+	mount_image
+	load_rootfs "${mount_dir}"
+	unmount_image
+}
+
+run_vm()
+{
+	local kernel_bzimage="$1"
+	local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
+
+	if ! which "${QEMU_BINARY}" &> /dev/null; then
+		cat <<EOF
+Could not find ${QEMU_BINARY}
+Please install qemu or set the QEMU_BINARY environment variable.
+EOF
+		exit 1
+	fi
+
+	if [[ "${PLATFORM}" != "$(uname -m)" ]]; then
+		QEMU_FLAGS=("${CROSS_FLAGS[@]}")
+	else
+		QEMU_FLAGS=("${HOST_FLAGS[@]}")
+	fi
+
+	${QEMU_BINARY} \
+		-nodefaults \
+		-display none \
+		-serial mon:stdio \
+		"${QEMU_FLAGS[@]}" \
+		-m 4G \
+		-drive file="${rootfs_img}",format=raw,index=1,media=disk,if=virtio,cache=none \
+		-kernel "${kernel_bzimage}" \
+		-append "root=/dev/vda rw console=${QEMU_CONSOLE}"
+}
+
+copy_logs()
+{
+	local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
+	local log_file="${mount_dir}/root/${LOG_FILE}"
+	local exit_status_file="${mount_dir}/root/${EXIT_STATUS_FILE}"
+
+	mount_image
+	sudo cp ${log_file} "${OUTPUT_DIR}"
+	sudo cp ${exit_status_file} "${OUTPUT_DIR}"
+	sudo rm -f ${log_file}
+	unmount_image
+}
+
+is_rel_path()
+{
+	local path="$1"
+
+	[[ ${path:0:1} != "/" ]]
+}
+
+do_update_kconfig()
+{
+	local kernel_checkout="$1"
+	local kconfig_file="$2"
+
+	rm -f "$kconfig_file" 2> /dev/null
+
+	for config in "${KCONFIG_REL_PATHS[@]}"; do
+		local kconfig_src="${kernel_checkout}/${config}"
+		cat "$kconfig_src" >> "$kconfig_file"
+	done
+}
+
+update_kconfig()
+{
+	local kernel_checkout="$1"
+	local kconfig_file="$2"
+
+	if [[ -f "${kconfig_file}" ]]; then
+		local local_modified="$(stat -c %Y "${kconfig_file}")"
+
+		for config in "${KCONFIG_REL_PATHS[@]}"; do
+			local kconfig_src="${kernel_checkout}/${config}"
+			local src_modified="$(stat -c %Y "${kconfig_src}")"
+			# Only update the config if it has been updated after the
+			# previously cached config was created. This avoids
+			# unnecessarily compiling the kernel and selftests.
+			if [[ "${src_modified}" -gt "${local_modified}" ]]; then
+				do_update_kconfig "$kernel_checkout" "$kconfig_file"
+				# Once we have found one outdated configuration
+				# there is no need to check other ones.
+				break
+			fi
+		done
+	else
+		do_update_kconfig "$kernel_checkout" "$kconfig_file"
+	fi
+}
+
+catch()
+{
+	local exit_code=$1
+	local exit_status_file="${OUTPUT_DIR}/${EXIT_STATUS_FILE}"
+	# This is just a cleanup and the directory may
+	# have already been unmounted. So, don't let this
+	# clobber the error code we intend to return.
+	unmount_image || true
+	if [[ -f "${exit_status_file}" ]]; then
+		exit_code="$(cat ${exit_status_file})"
+	fi
+	exit ${exit_code}
+}
+
+main()
+{
+	local script_dir="$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
+	local kernel_checkout=$(realpath "${script_dir}"/../../../../)
+	# By default the script searches for the kernel in the checkout directory but
+	# it also obeys environment variables O= and KBUILD_OUTPUT=
+	local kernel_bzimage="${kernel_checkout}/${BZIMAGE}"
+	local command="${DEFAULT_COMMAND}"
+	local update_image="no"
+	local exit_command="poweroff -f"
+	local debug_shell="no"
+
+	while getopts ':hskl:id:j:' opt; do
+		case ${opt} in
+		l)
+			LOCAL_ROOTFS_IMAGE="$OPTARG"
+			;;
+		i)
+			update_image="yes"
+			;;
+		d)
+			OUTPUT_DIR="$OPTARG"
+			;;
+		j)
+			NUM_COMPILE_JOBS="$OPTARG"
+			;;
+		s)
+			command=""
+			debug_shell="yes"
+			exit_command="bash"
+			;;
+		h)
+			usage
+			exit 0
+			;;
+		\? )
+			echo "Invalid Option: -$OPTARG"
+			usage
+			exit 1
+			;;
+		: )
+			echo "Invalid Option: -$OPTARG requires an argument"
+			usage
+			exit 1
+			;;
+		esac
+	done
+	shift $((OPTIND -1))
+
+	trap 'catch "$?"' EXIT
+
+	if [[ "${PLATFORM}" != "$(uname -m)" ]] && [[ -z "${CROSS_COMPILE}" ]]; then
+		echo "Cross-platform testing needs to specify CROSS_COMPILE"
+		exit 1
+	fi
+
+	if [[ $# -eq 0  && "${debug_shell}" == "no" ]]; then
+		echo "No command specified, will run ${DEFAULT_COMMAND} in the vm"
+	else
+		command="$@"
+	fi
+
+	local kconfig_file="${OUTPUT_DIR}/latest.config"
+	local make_command="make ARCH=${ARCH} CROSS_COMPILE=${CROSS_COMPILE} \
+			    -j ${NUM_COMPILE_JOBS} KCONFIG_CONFIG=${kconfig_file}"
+
+	# Figure out where the kernel is being built.
+	# O takes precedence over KBUILD_OUTPUT.
+	if [[ "${O:=""}" != "" ]]; then
+		if is_rel_path "${O}"; then
+			O="$(realpath "${PWD}/${O}")"
+		fi
+		kernel_bzimage="${O}/${BZIMAGE}"
+		make_command="${make_command} O=${O}"
+	elif [[ "${KBUILD_OUTPUT:=""}" != "" ]]; then
+		if is_rel_path "${KBUILD_OUTPUT}"; then
+			KBUILD_OUTPUT="$(realpath "${PWD}/${KBUILD_OUTPUT}")"
+		fi
+		kernel_bzimage="${KBUILD_OUTPUT}/${BZIMAGE}"
+		make_command="${make_command} KBUILD_OUTPUT=${KBUILD_OUTPUT}"
+	fi
+
+	local rootfs_img="${OUTPUT_DIR}/${ROOTFS_IMAGE}"
+	local mount_dir="${OUTPUT_DIR}/${MOUNT_DIR}"
+
+	echo "Output directory: ${OUTPUT_DIR}"
+
+	mkdir -p "${OUTPUT_DIR}"
+	mkdir -p "${mount_dir}"
+	update_kconfig "${kernel_checkout}" "${kconfig_file}"
+
+	recompile_kernel "${kernel_checkout}" "${make_command}"
+
+	if [[ "${update_image}" == "no" && ! -f "${rootfs_img}" ]]; then
+		echo "rootfs image not found in ${rootfs_img}"
+		update_image="yes"
+	fi
+
+	if [[ "${update_image}" == "yes" ]]; then
+		create_vm_image
+	fi
+
+	update_selftests "${kernel_checkout}" "${make_command}"
+	update_init_script "${command}" "${exit_command}"
+	run_vm "${kernel_bzimage}"
+	if [[ "${command}" != "" ]]; then
+		copy_logs
+		echo "Logs saved in ${OUTPUT_DIR}/${LOG_FILE}"
+	fi
+}
+
+main "$@"
diff --git a/tools/testing/selftests/bpf/xdp_features.c b/tools/testing/selftests/bpf/xdp_features.c
new file mode 100644
index 000000000000..595c79141cf3
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_features.c
@@ -0,0 +1,718 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <uapi/linux/bpf.h>
+#include <uapi/linux/netdev.h>
+#include <linux/if_link.h>
+#include <signal.h>
+#include <argp.h>
+#include <net/if.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <pthread.h>
+
+#include <network_helpers.h>
+
+#include "xdp_features.skel.h"
+#include "xdp_features.h"
+
+#define RED(str)	"\033[0;31m" str "\033[0m"
+#define GREEN(str)	"\033[0;32m" str "\033[0m"
+#define YELLOW(str)	"\033[0;33m" str "\033[0m"
+
+static struct env {
+	bool verbosity;
+	char ifname[IF_NAMESIZE];
+	int ifindex;
+	bool is_tester;
+	struct {
+		enum netdev_xdp_act drv_feature;
+		enum xdp_action action;
+	} feature;
+	struct sockaddr_storage dut_ctrl_addr;
+	struct sockaddr_storage dut_addr;
+	struct sockaddr_storage tester_addr;
+} env;
+
+#define BUFSIZE		128
+
+void test__fail(void) { /* for network_helpers.c */ }
+
+static int libbpf_print_fn(enum libbpf_print_level level,
+			   const char *format, va_list args)
+{
+	if (level == LIBBPF_DEBUG && !env.verbosity)
+		return 0;
+	return vfprintf(stderr, format, args);
+}
+
+static volatile bool exiting;
+
+static void sig_handler(int sig)
+{
+	exiting = true;
+}
+
+const char *argp_program_version = "xdp-features 0.0";
+const char argp_program_doc[] =
+"XDP features detection application.\n"
+"\n"
+"XDP features application checks the XDP advertised features match detected ones.\n"
+"\n"
+"USAGE: ./xdp-features [-vt] [-f <xdp-feature>] [-D <dut-data-ip>] [-T <tester-data-ip>] [-C <dut-ctrl-ip>] <iface-name>\n"
+"\n"
+"dut-data-ip, tester-data-ip, dut-ctrl-ip: IPv6 or IPv4-mapped-IPv6 addresses;\n"
+"\n"
+"XDP features\n:"
+"- XDP_PASS\n"
+"- XDP_DROP\n"
+"- XDP_ABORTED\n"
+"- XDP_REDIRECT\n"
+"- XDP_NDO_XMIT\n"
+"- XDP_TX\n";
+
+static const struct argp_option opts[] = {
+	{ "verbose", 'v', NULL, 0, "Verbose debug output" },
+	{ "tester", 't', NULL, 0, "Tester mode" },
+	{ "feature", 'f', "XDP-FEATURE", 0, "XDP feature to test" },
+	{ "dut_data_ip", 'D', "DUT-DATA-IP", 0, "DUT IP data channel" },
+	{ "dut_ctrl_ip", 'C', "DUT-CTRL-IP", 0, "DUT IP control channel" },
+	{ "tester_data_ip", 'T', "TESTER-DATA-IP", 0, "Tester IP data channel" },
+	{},
+};
+
+static int get_xdp_feature(const char *arg)
+{
+	if (!strcmp(arg, "XDP_PASS")) {
+		env.feature.action = XDP_PASS;
+		env.feature.drv_feature = NETDEV_XDP_ACT_BASIC;
+	} else if (!strcmp(arg, "XDP_DROP")) {
+		env.feature.drv_feature = NETDEV_XDP_ACT_BASIC;
+		env.feature.action = XDP_DROP;
+	} else if (!strcmp(arg, "XDP_ABORTED")) {
+		env.feature.drv_feature = NETDEV_XDP_ACT_BASIC;
+		env.feature.action = XDP_ABORTED;
+	} else if (!strcmp(arg, "XDP_TX")) {
+		env.feature.drv_feature = NETDEV_XDP_ACT_BASIC;
+		env.feature.action = XDP_TX;
+	} else if (!strcmp(arg, "XDP_REDIRECT")) {
+		env.feature.drv_feature = NETDEV_XDP_ACT_REDIRECT;
+		env.feature.action = XDP_REDIRECT;
+	} else if (!strcmp(arg, "XDP_NDO_XMIT")) {
+		env.feature.drv_feature = NETDEV_XDP_ACT_NDO_XMIT;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static char *get_xdp_feature_str(void)
+{
+	switch (env.feature.action) {
+	case XDP_PASS:
+		return YELLOW("XDP_PASS");
+	case XDP_DROP:
+		return YELLOW("XDP_DROP");
+	case XDP_ABORTED:
+		return YELLOW("XDP_ABORTED");
+	case XDP_TX:
+		return YELLOW("XDP_TX");
+	case XDP_REDIRECT:
+		return YELLOW("XDP_REDIRECT");
+	default:
+		break;
+	}
+
+	if (env.feature.drv_feature == NETDEV_XDP_ACT_NDO_XMIT)
+		return YELLOW("XDP_NDO_XMIT");
+
+	return "";
+}
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	switch (key) {
+	case 'v':
+		env.verbosity = true;
+		break;
+	case 't':
+		env.is_tester = true;
+		break;
+	case 'f':
+		if (get_xdp_feature(arg) < 0) {
+			fprintf(stderr, "Invalid xdp feature: %s\n", arg);
+			argp_usage(state);
+			return ARGP_ERR_UNKNOWN;
+		}
+		break;
+	case 'D':
+		if (make_sockaddr(AF_INET6, arg, DUT_ECHO_PORT,
+				  &env.dut_addr, NULL)) {
+			fprintf(stderr,
+				"Invalid address assigned to the Device Under Test: %s\n",
+				arg);
+			return ARGP_ERR_UNKNOWN;
+		}
+		break;
+	case 'C':
+		if (make_sockaddr(AF_INET6, arg, DUT_CTRL_PORT,
+				  &env.dut_ctrl_addr, NULL)) {
+			fprintf(stderr,
+				"Invalid address assigned to the Device Under Test: %s\n",
+				arg);
+			return ARGP_ERR_UNKNOWN;
+		}
+		break;
+	case 'T':
+		if (make_sockaddr(AF_INET6, arg, 0, &env.tester_addr, NULL)) {
+			fprintf(stderr,
+				"Invalid address assigned to the Tester device: %s\n",
+				arg);
+			return ARGP_ERR_UNKNOWN;
+		}
+		break;
+	case ARGP_KEY_ARG:
+		errno = 0;
+		if (strlen(arg) >= IF_NAMESIZE) {
+			fprintf(stderr, "Invalid device name: %s\n", arg);
+			argp_usage(state);
+			return ARGP_ERR_UNKNOWN;
+		}
+
+		env.ifindex = if_nametoindex(arg);
+		if (!env.ifindex)
+			env.ifindex = strtoul(arg, NULL, 0);
+		if (!env.ifindex || !if_indextoname(env.ifindex, env.ifname)) {
+			fprintf(stderr,
+				"Bad interface index or name (%d): %s\n",
+				errno, strerror(errno));
+			argp_usage(state);
+			return ARGP_ERR_UNKNOWN;
+		}
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+static const struct argp argp = {
+	.options = opts,
+	.parser = parse_arg,
+	.doc = argp_program_doc,
+};
+
+static void set_env_default(void)
+{
+	env.feature.drv_feature = NETDEV_XDP_ACT_NDO_XMIT;
+	env.feature.action = -EINVAL;
+	env.ifindex = -ENODEV;
+	strcpy(env.ifname, "unknown");
+	make_sockaddr(AF_INET6, "::ffff:127.0.0.1", DUT_CTRL_PORT,
+		      &env.dut_ctrl_addr, NULL);
+	make_sockaddr(AF_INET6, "::ffff:127.0.0.1", DUT_ECHO_PORT,
+		      &env.dut_addr, NULL);
+	make_sockaddr(AF_INET6, "::ffff:127.0.0.1", 0, &env.tester_addr, NULL);
+}
+
+static void *dut_echo_thread(void *arg)
+{
+	unsigned char buf[sizeof(struct tlv_hdr)];
+	int sockfd = *(int *)arg;
+
+	while (!exiting) {
+		struct tlv_hdr *tlv = (struct tlv_hdr *)buf;
+		struct sockaddr_storage addr;
+		socklen_t addrlen;
+		size_t n;
+
+		n = recvfrom(sockfd, buf, sizeof(buf), MSG_WAITALL,
+			     (struct sockaddr *)&addr, &addrlen);
+		if (n != ntohs(tlv->len))
+			continue;
+
+		if (ntohs(tlv->type) != CMD_ECHO)
+			continue;
+
+		sendto(sockfd, buf, sizeof(buf), MSG_NOSIGNAL | MSG_CONFIRM,
+		       (struct sockaddr *)&addr, addrlen);
+	}
+
+	pthread_exit((void *)0);
+	close(sockfd);
+
+	return NULL;
+}
+
+static int dut_run_echo_thread(pthread_t *t, int *sockfd)
+{
+	int err;
+
+	sockfd = start_reuseport_server(AF_INET6, SOCK_DGRAM, NULL,
+					DUT_ECHO_PORT, 0, 1);
+	if (!sockfd) {
+		fprintf(stderr,
+			"Failed creating data UDP socket on device %s\n",
+			env.ifname);
+		return -errno;
+	}
+
+	/* start echo channel */
+	err = pthread_create(t, NULL, dut_echo_thread, sockfd);
+	if (err) {
+		fprintf(stderr,
+			"Failed creating data UDP thread on device %s: %s\n",
+			env.ifname, strerror(-err));
+		free_fds(sockfd, 1);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int dut_attach_xdp_prog(struct xdp_features *skel, int flags)
+{
+	enum xdp_action action = env.feature.action;
+	struct bpf_program *prog;
+	unsigned int key = 0;
+	int err, fd = 0;
+
+	if (env.feature.drv_feature == NETDEV_XDP_ACT_NDO_XMIT) {
+		struct bpf_devmap_val entry = {
+			.ifindex = env.ifindex,
+		};
+
+		err = bpf_map__update_elem(skel->maps.dev_map,
+					   &key, sizeof(key),
+					   &entry, sizeof(entry), 0);
+		if (err < 0)
+			return err;
+
+		fd = bpf_program__fd(skel->progs.xdp_do_redirect_cpumap);
+		action = XDP_REDIRECT;
+	}
+
+	switch (action) {
+	case XDP_TX:
+		prog = skel->progs.xdp_do_tx;
+		break;
+	case XDP_DROP:
+		prog = skel->progs.xdp_do_drop;
+		break;
+	case XDP_ABORTED:
+		prog = skel->progs.xdp_do_aborted;
+		break;
+	case XDP_PASS:
+		prog = skel->progs.xdp_do_pass;
+		break;
+	case XDP_REDIRECT: {
+		struct bpf_cpumap_val entry = {
+			.qsize = 2048,
+			.bpf_prog.fd = fd,
+		};
+
+		err = bpf_map__update_elem(skel->maps.cpu_map,
+					   &key, sizeof(key),
+					   &entry, sizeof(entry), 0);
+		if (err < 0)
+			return err;
+
+		prog = skel->progs.xdp_do_redirect;
+		break;
+	}
+	default:
+		return -EINVAL;
+	}
+
+	err = bpf_xdp_attach(env.ifindex, bpf_program__fd(prog), flags, NULL);
+	if (err)
+		fprintf(stderr, "Failed attaching XDP program to device %s\n",
+			env.ifname);
+	return err;
+}
+
+static int recv_msg(int sockfd, void *buf, size_t bufsize, void *val,
+		    size_t val_size)
+{
+	struct tlv_hdr *tlv = (struct tlv_hdr *)buf;
+	size_t len;
+
+	len = recv(sockfd, buf, bufsize, 0);
+	if (len != ntohs(tlv->len) || len < sizeof(*tlv))
+		return -EINVAL;
+
+	if (val) {
+		len -= sizeof(*tlv);
+		if (len > val_size)
+			return -ENOMEM;
+
+		memcpy(val, tlv->data, len);
+	}
+
+	return 0;
+}
+
+static int dut_run(struct xdp_features *skel)
+{
+	int flags = XDP_FLAGS_UPDATE_IF_NOEXIST | XDP_FLAGS_DRV_MODE;
+	int state, err = 0, *sockfd, ctrl_sockfd, echo_sockfd;
+	struct sockaddr_storage ctrl_addr;
+	pthread_t dut_thread = 0;
+	socklen_t addrlen;
+
+	sockfd = start_reuseport_server(AF_INET6, SOCK_STREAM, NULL,
+					DUT_CTRL_PORT, 0, 1);
+	if (!sockfd) {
+		fprintf(stderr,
+			"Failed creating control socket on device %s\n", env.ifname);
+		return -errno;
+	}
+
+	ctrl_sockfd = accept(*sockfd, (struct sockaddr *)&ctrl_addr, &addrlen);
+	if (ctrl_sockfd < 0) {
+		fprintf(stderr,
+			"Failed accepting connections on device %s control socket\n",
+			env.ifname);
+		free_fds(sockfd, 1);
+		return -errno;
+	}
+
+	/* CTRL loop */
+	while (!exiting) {
+		unsigned char buf[BUFSIZE] = {};
+		struct tlv_hdr *tlv = (struct tlv_hdr *)buf;
+
+		err = recv_msg(ctrl_sockfd, buf, BUFSIZE, NULL, 0);
+		if (err)
+			continue;
+
+		switch (ntohs(tlv->type)) {
+		case CMD_START: {
+			if (state == CMD_START)
+				continue;
+
+			state = CMD_START;
+			/* Load the XDP program on the DUT */
+			err = dut_attach_xdp_prog(skel, flags);
+			if (err)
+				goto out;
+
+			err = dut_run_echo_thread(&dut_thread, &echo_sockfd);
+			if (err < 0)
+				goto out;
+
+			tlv->type = htons(CMD_ACK);
+			tlv->len = htons(sizeof(*tlv));
+			err = send(ctrl_sockfd, buf, sizeof(*tlv), 0);
+			if (err < 0)
+				goto end_thread;
+			break;
+		}
+		case CMD_STOP:
+			if (state != CMD_START)
+				break;
+
+			state = CMD_STOP;
+
+			exiting = true;
+			bpf_xdp_detach(env.ifindex, flags, NULL);
+
+			tlv->type = htons(CMD_ACK);
+			tlv->len = htons(sizeof(*tlv));
+			err = send(ctrl_sockfd, buf, sizeof(*tlv), 0);
+			goto end_thread;
+		case CMD_GET_XDP_CAP: {
+			LIBBPF_OPTS(bpf_xdp_query_opts, opts);
+			unsigned long long val;
+			size_t n;
+
+			err = bpf_xdp_query(env.ifindex, XDP_FLAGS_DRV_MODE,
+					    &opts);
+			if (err) {
+				fprintf(stderr,
+					"Failed querying XDP cap for device %s\n",
+					env.ifname);
+				goto end_thread;
+			}
+
+			tlv->type = htons(CMD_ACK);
+			n = sizeof(*tlv) + sizeof(opts.feature_flags);
+			tlv->len = htons(n);
+
+			val = htobe64(opts.feature_flags);
+			memcpy(tlv->data, &val, sizeof(val));
+
+			err = send(ctrl_sockfd, buf, n, 0);
+			if (err < 0)
+				goto end_thread;
+			break;
+		}
+		case CMD_GET_STATS: {
+			unsigned int key = 0, val;
+			size_t n;
+
+			err = bpf_map__lookup_elem(skel->maps.dut_stats,
+						   &key, sizeof(key),
+						   &val, sizeof(val), 0);
+			if (err) {
+				fprintf(stderr,
+					"bpf_map_lookup_elem failed (%d)\n", err);
+				goto end_thread;
+			}
+
+			tlv->type = htons(CMD_ACK);
+			n = sizeof(*tlv) + sizeof(val);
+			tlv->len = htons(n);
+
+			val = htonl(val);
+			memcpy(tlv->data, &val, sizeof(val));
+
+			err = send(ctrl_sockfd, buf, n, 0);
+			if (err < 0)
+				goto end_thread;
+			break;
+		}
+		default:
+			break;
+		}
+	}
+
+end_thread:
+	pthread_join(dut_thread, NULL);
+out:
+	bpf_xdp_detach(env.ifindex, flags, NULL);
+	close(ctrl_sockfd);
+	free_fds(sockfd, 1);
+
+	return err;
+}
+
+static bool tester_collect_detected_cap(struct xdp_features *skel,
+					unsigned int dut_stats)
+{
+	unsigned int err, key = 0, val;
+
+	if (!dut_stats)
+		return false;
+
+	err = bpf_map__lookup_elem(skel->maps.stats, &key, sizeof(key),
+				   &val, sizeof(val), 0);
+	if (err) {
+		fprintf(stderr, "bpf_map_lookup_elem failed (%d)\n", err);
+		return false;
+	}
+
+	switch (env.feature.action) {
+	case XDP_PASS:
+	case XDP_TX:
+	case XDP_REDIRECT:
+		return val > 0;
+	case XDP_DROP:
+	case XDP_ABORTED:
+		return val == 0;
+	default:
+		break;
+	}
+
+	if (env.feature.drv_feature == NETDEV_XDP_ACT_NDO_XMIT)
+		return val > 0;
+
+	return false;
+}
+
+static int send_and_recv_msg(int sockfd, enum test_commands cmd, void *val,
+			     size_t val_size)
+{
+	unsigned char buf[BUFSIZE] = {};
+	struct tlv_hdr *tlv = (struct tlv_hdr *)buf;
+	int err;
+
+	tlv->type = htons(cmd);
+	tlv->len = htons(sizeof(*tlv));
+
+	err = send(sockfd, buf, sizeof(*tlv), 0);
+	if (err < 0)
+		return err;
+
+	err = recv_msg(sockfd, buf, BUFSIZE, val, val_size);
+	if (err < 0)
+		return err;
+
+	return ntohs(tlv->type) == CMD_ACK ? 0 : -EINVAL;
+}
+
+static int send_echo_msg(void)
+{
+	unsigned char buf[sizeof(struct tlv_hdr)];
+	struct tlv_hdr *tlv = (struct tlv_hdr *)buf;
+	int sockfd, n;
+
+	sockfd = socket(AF_INET6, SOCK_DGRAM, 0);
+	if (sockfd < 0) {
+		fprintf(stderr,
+			"Failed creating data UDP socket on device %s\n",
+			env.ifname);
+		return -errno;
+	}
+
+	tlv->type = htons(CMD_ECHO);
+	tlv->len = htons(sizeof(*tlv));
+
+	n = sendto(sockfd, buf, sizeof(*tlv), MSG_NOSIGNAL | MSG_CONFIRM,
+		   (struct sockaddr *)&env.dut_addr, sizeof(env.dut_addr));
+	close(sockfd);
+
+	return n == ntohs(tlv->len) ? 0 : -EINVAL;
+}
+
+static int tester_run(struct xdp_features *skel)
+{
+	int flags = XDP_FLAGS_UPDATE_IF_NOEXIST | XDP_FLAGS_DRV_MODE;
+	unsigned long long advertised_feature;
+	struct bpf_program *prog;
+	unsigned int stats;
+	int i, err, sockfd;
+	bool detected_cap;
+
+	sockfd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (sockfd < 0) {
+		fprintf(stderr,
+			"Failed creating tester service control socket\n");
+		return -errno;
+	}
+
+	if (settimeo(sockfd, 1000) < 0)
+		return -EINVAL;
+
+	err = connect(sockfd, (struct sockaddr *)&env.dut_ctrl_addr,
+		      sizeof(env.dut_ctrl_addr));
+	if (err) {
+		fprintf(stderr,
+			"Failed connecting to the Device Under Test control socket\n");
+		return -errno;
+	}
+
+	err = send_and_recv_msg(sockfd, CMD_GET_XDP_CAP, &advertised_feature,
+				sizeof(advertised_feature));
+	if (err < 0) {
+		close(sockfd);
+		return err;
+	}
+
+	advertised_feature = be64toh(advertised_feature);
+
+	if (env.feature.drv_feature == NETDEV_XDP_ACT_NDO_XMIT ||
+	    env.feature.action == XDP_TX)
+		prog = skel->progs.xdp_tester_check_tx;
+	else
+		prog = skel->progs.xdp_tester_check_rx;
+
+	err = bpf_xdp_attach(env.ifindex, bpf_program__fd(prog), flags, NULL);
+	if (err) {
+		fprintf(stderr, "Failed attaching XDP program to device %s\n",
+			env.ifname);
+		goto out;
+	}
+
+	err = send_and_recv_msg(sockfd, CMD_START, NULL, 0);
+	if (err)
+		goto out;
+
+	for (i = 0; i < 10 && !exiting; i++) {
+		err = send_echo_msg();
+		if (err < 0)
+			goto out;
+
+		sleep(1);
+	}
+
+	err = send_and_recv_msg(sockfd, CMD_GET_STATS, &stats, sizeof(stats));
+	if (err)
+		goto out;
+
+	/* stop the test */
+	err = send_and_recv_msg(sockfd, CMD_STOP, NULL, 0);
+	/* send a new echo message to wake echo thread of the dut */
+	send_echo_msg();
+
+	detected_cap = tester_collect_detected_cap(skel, ntohl(stats));
+
+	fprintf(stdout, "Feature %s: [%s][%s]\n", get_xdp_feature_str(),
+		detected_cap ? GREEN("DETECTED") : RED("NOT DETECTED"),
+		env.feature.drv_feature & advertised_feature ? GREEN("ADVERTISED")
+							     : RED("NOT ADVERTISED"));
+out:
+	bpf_xdp_detach(env.ifindex, flags, NULL);
+	close(sockfd);
+	return err < 0 ? err : 0;
+}
+
+int main(int argc, char **argv)
+{
+	struct xdp_features *skel;
+	int err;
+
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+	libbpf_set_print(libbpf_print_fn);
+
+	signal(SIGINT, sig_handler);
+	signal(SIGTERM, sig_handler);
+
+	set_env_default();
+
+	/* Parse command line arguments */
+	err = argp_parse(&argp, argc, argv, 0, NULL, NULL);
+	if (err)
+		return err;
+
+	if (env.ifindex < 0) {
+		fprintf(stderr, "Invalid device name %s\n", env.ifname);
+		return -ENODEV;
+	}
+
+	/* Load and verify BPF application */
+	skel = xdp_features__open();
+	if (!skel) {
+		fprintf(stderr, "Failed to open and load BPF skeleton\n");
+		return -EINVAL;
+	}
+
+	skel->rodata->tester_addr =
+		((struct sockaddr_in6 *)&env.tester_addr)->sin6_addr;
+	skel->rodata->dut_addr =
+		((struct sockaddr_in6 *)&env.dut_addr)->sin6_addr;
+
+	/* Load & verify BPF programs */
+	err = xdp_features__load(skel);
+	if (err) {
+		fprintf(stderr, "Failed to load and verify BPF skeleton\n");
+		goto cleanup;
+	}
+
+	err = xdp_features__attach(skel);
+	if (err) {
+		fprintf(stderr, "Failed to attach BPF skeleton\n");
+		goto cleanup;
+	}
+
+	if (env.is_tester) {
+		/* Tester */
+		fprintf(stdout, "Starting tester service on device %s\n",
+			env.ifname);
+		err = tester_run(skel);
+	} else {
+		/* DUT */
+		fprintf(stdout, "Starting test on device %s\n", env.ifname);
+		err = dut_run(skel);
+	}
+
+cleanup:
+	xdp_features__destroy(skel);
+
+	return err < 0 ? -err : 0;
+}
diff --git a/tools/testing/selftests/bpf/xdp_features.h b/tools/testing/selftests/bpf/xdp_features.h
new file mode 100644
index 000000000000..2670c541713b
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_features.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/* test commands */
+enum test_commands {
+	CMD_STOP,		/* CMD */
+	CMD_START,		/* CMD */
+	CMD_ECHO,		/* CMD */
+	CMD_ACK,		/* CMD + data */
+	CMD_GET_XDP_CAP,	/* CMD */
+	CMD_GET_STATS,		/* CMD */
+};
+
+#define DUT_CTRL_PORT	12345
+#define DUT_ECHO_PORT	12346
+
+struct tlv_hdr {
+	__be16 type;
+	__be16 len;
+	__u8 data[];
+};
diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/selftests/bpf/xdp_hw_metadata.c
new file mode 100644
index 000000000000..3d8de0d4c96a
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c
@@ -0,0 +1,894 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Reference program for verifying XDP metadata on real HW. Functional test
+ * only, doesn't test the performance.
+ *
+ * RX:
+ * - UDP 9091 packets are diverted into AF_XDP
+ * - Metadata verified:
+ *   - rx_timestamp
+ *   - rx_hash
+ *
+ * TX:
+ * - UDP 9091 packets trigger TX reply
+ * - TX HW timestamp is requested and reported back upon completion
+ * - TX checksum is requested
+ * - TX launch time HW offload is requested for transmission
+ */
+
+#include <test_progs.h>
+#include <network_helpers.h>
+#include "xdp_hw_metadata.skel.h"
+#include "xsk.h"
+
+#include <error.h>
+#include <linux/kernel.h>
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+#include <linux/errqueue.h>
+#include <linux/if_link.h>
+#include <linux/net_tstamp.h>
+#include <netinet/udp.h>
+#include <linux/sockios.h>
+#include <linux/if_xdp.h>
+#include <sys/mman.h>
+#include <net/if.h>
+#include <ctype.h>
+#include <poll.h>
+#include <time.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <linux/pkt_sched.h>
+#include <linux/pkt_cls.h>
+#include <linux/ethtool.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+
+#include "xdp_metadata.h"
+
+#define UMEM_NUM 256
+#define UMEM_FRAME_SIZE XSK_UMEM__DEFAULT_FRAME_SIZE
+#define UMEM_SIZE (UMEM_FRAME_SIZE * UMEM_NUM)
+#define XDP_FLAGS (XDP_FLAGS_DRV_MODE | XDP_FLAGS_REPLACE)
+
+struct xsk {
+	void *umem_area;
+	struct xsk_umem *umem;
+	struct xsk_ring_prod fill;
+	struct xsk_ring_cons comp;
+	struct xsk_ring_prod tx;
+	struct xsk_ring_cons rx;
+	struct xsk_socket *socket;
+};
+
+struct xdp_hw_metadata *bpf_obj;
+__u16 bind_flags = XDP_USE_NEED_WAKEUP | XDP_ZEROCOPY;
+struct xsk *rx_xsk;
+const char *ifname;
+int ifindex;
+int rxq;
+bool skip_tx;
+__u64 last_hw_rx_timestamp;
+__u64 last_xdp_rx_timestamp;
+__u64 last_launch_time;
+__u64 launch_time_delta_to_hw_rx_timestamp;
+int launch_time_queue;
+
+#define run_command(cmd, ...)					\
+({								\
+	char command[1024];					\
+	memset(command, 0, sizeof(command));			\
+	snprintf(command, sizeof(command), cmd, ##__VA_ARGS__);	\
+	fprintf(stderr, "Running: %s\n", command);		\
+	system(command);					\
+})
+
+void test__fail(void) { /* for network_helpers.c */ }
+
+static int open_xsk(int ifindex, struct xsk *xsk, __u32 queue_id)
+{
+	int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+	const struct xsk_socket_config socket_config = {
+		.rx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.bind_flags = bind_flags,
+	};
+	const struct xsk_umem_config umem_config = {
+		.fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+		.comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
+		.frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
+		.flags = XDP_UMEM_TX_METADATA_LEN,
+		.tx_metadata_len = sizeof(struct xsk_tx_metadata),
+	};
+	__u32 idx = 0;
+	u64 addr;
+	int ret;
+	int i;
+
+	xsk->umem_area = mmap(NULL, UMEM_SIZE, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
+	if (xsk->umem_area == MAP_FAILED)
+		return -ENOMEM;
+
+	ret = xsk_umem__create(&xsk->umem,
+			       xsk->umem_area, UMEM_SIZE,
+			       &xsk->fill,
+			       &xsk->comp,
+			       &umem_config);
+	if (ret)
+		return ret;
+
+	ret = xsk_socket__create(&xsk->socket, ifindex, queue_id,
+				 xsk->umem,
+				 &xsk->rx,
+				 &xsk->tx,
+				 &socket_config);
+	if (ret)
+		return ret;
+
+	/* First half of umem is for TX. This way address matches 1-to-1
+	 * to the completion queue index.
+	 */
+
+	for (i = 0; i < UMEM_NUM / 2; i++) {
+		addr = i * UMEM_FRAME_SIZE;
+		printf("%p: tx_desc[%d] -> %lx\n", xsk, i, addr);
+	}
+
+	/* Second half of umem is for RX. */
+
+	ret = xsk_ring_prod__reserve(&xsk->fill, UMEM_NUM / 2, &idx);
+	for (i = 0; i < UMEM_NUM / 2; i++) {
+		addr = (UMEM_NUM / 2 + i) * UMEM_FRAME_SIZE;
+		printf("%p: rx_desc[%d] -> %lx\n", xsk, i, addr);
+		*xsk_ring_prod__fill_addr(&xsk->fill, idx + i) = addr;
+	}
+	xsk_ring_prod__submit(&xsk->fill, ret);
+
+	return 0;
+}
+
+static void close_xsk(struct xsk *xsk)
+{
+	if (xsk->umem)
+		xsk_umem__delete(xsk->umem);
+	if (xsk->socket)
+		xsk_socket__delete(xsk->socket);
+	munmap(xsk->umem_area, UMEM_SIZE);
+}
+
+static void refill_rx(struct xsk *xsk, __u64 addr)
+{
+	__u32 idx;
+
+	if (xsk_ring_prod__reserve(&xsk->fill, 1, &idx) == 1) {
+		printf("%p: complete rx idx=%u addr=%llx\n", xsk, idx, addr);
+		*xsk_ring_prod__fill_addr(&xsk->fill, idx) = addr;
+		xsk_ring_prod__submit(&xsk->fill, 1);
+	}
+}
+
+static int kick_tx(struct xsk *xsk)
+{
+	return sendto(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, 0);
+}
+
+static int kick_rx(struct xsk *xsk)
+{
+	return recvfrom(xsk_socket__fd(xsk->socket), NULL, 0, MSG_DONTWAIT, NULL, NULL);
+}
+
+#define NANOSEC_PER_SEC 1000000000 /* 10^9 */
+static __u64 gettime(clockid_t clock_id)
+{
+	struct timespec t;
+	int res;
+
+	/* See man clock_gettime(2) for type of clock_id's */
+	res = clock_gettime(clock_id, &t);
+
+	if (res < 0)
+		error(res, errno, "Error with clock_gettime()");
+
+	return (__u64) t.tv_sec * NANOSEC_PER_SEC + t.tv_nsec;
+}
+
+static void print_tstamp_delta(const char *name, const char *refname,
+			       __u64 tstamp, __u64 reference)
+{
+	__s64 delta = (__s64)reference - (__s64)tstamp;
+
+	printf("%s:   %llu (sec:%0.4f) delta to %s sec:%0.4f (%0.3f usec)\n",
+	       name, tstamp, (double)tstamp / NANOSEC_PER_SEC, refname,
+	       (double)delta / NANOSEC_PER_SEC,
+	       (double)delta / 1000);
+}
+
+#define VLAN_PRIO_MASK		GENMASK(15, 13) /* Priority Code Point */
+#define VLAN_DEI_MASK		GENMASK(12, 12) /* Drop Eligible Indicator */
+#define VLAN_VID_MASK		GENMASK(11, 0)	/* VLAN Identifier */
+static void print_vlan_tci(__u16 tag)
+{
+	__u16 vlan_id = FIELD_GET(VLAN_VID_MASK, tag);
+	__u8 pcp = FIELD_GET(VLAN_PRIO_MASK, tag);
+	bool dei = FIELD_GET(VLAN_DEI_MASK, tag);
+
+	printf("PCP=%u, DEI=%d, VID=0x%X\n", pcp, dei, vlan_id);
+}
+
+static void verify_xdp_metadata(void *data, clockid_t clock_id)
+{
+	struct xdp_meta *meta;
+
+	meta = data - sizeof(*meta);
+
+	if (meta->hint_valid & XDP_META_FIELD_RSS)
+		printf("rx_hash: 0x%X with RSS type:0x%X\n",
+		       meta->rx_hash, meta->rx_hash_type);
+	else
+		printf("No rx_hash, err=%d\n", meta->rx_hash_err);
+
+	if (meta->hint_valid & XDP_META_FIELD_TS) {
+		__u64 ref_tstamp = gettime(clock_id);
+
+		/* store received timestamps to calculate a delta at tx */
+		last_hw_rx_timestamp = meta->rx_timestamp;
+		last_xdp_rx_timestamp = meta->xdp_timestamp;
+
+		print_tstamp_delta("HW RX-time", "User RX-time",
+				   meta->rx_timestamp, ref_tstamp);
+		print_tstamp_delta("XDP RX-time", "User RX-time",
+				   meta->xdp_timestamp, ref_tstamp);
+	} else {
+		printf("No rx_timestamp, err=%d\n", meta->rx_timestamp_err);
+	}
+
+	if (meta->hint_valid & XDP_META_FIELD_VLAN_TAG) {
+		printf("rx_vlan_proto: 0x%X\n", ntohs(meta->rx_vlan_proto));
+		printf("rx_vlan_tci: ");
+		print_vlan_tci(meta->rx_vlan_tci);
+	} else {
+		printf("No rx_vlan_tci or rx_vlan_proto, err=%d\n",
+		       meta->rx_vlan_tag_err);
+	}
+}
+
+static void verify_skb_metadata(int fd)
+{
+	char cmsg_buf[1024];
+	char packet_buf[128];
+
+	struct scm_timestamping *ts;
+	struct iovec packet_iov;
+	struct cmsghdr *cmsg;
+	struct msghdr hdr;
+
+	memset(&hdr, 0, sizeof(hdr));
+	hdr.msg_iov = &packet_iov;
+	hdr.msg_iovlen = 1;
+	packet_iov.iov_base = packet_buf;
+	packet_iov.iov_len = sizeof(packet_buf);
+
+	hdr.msg_control = cmsg_buf;
+	hdr.msg_controllen = sizeof(cmsg_buf);
+
+	if (recvmsg(fd, &hdr, 0) < 0)
+		error(1, errno, "recvmsg");
+
+	for (cmsg = CMSG_FIRSTHDR(&hdr); cmsg != NULL;
+	     cmsg = CMSG_NXTHDR(&hdr, cmsg)) {
+
+		if (cmsg->cmsg_level != SOL_SOCKET)
+			continue;
+
+		switch (cmsg->cmsg_type) {
+		case SCM_TIMESTAMPING:
+			ts = (struct scm_timestamping *)CMSG_DATA(cmsg);
+			if (ts->ts[2].tv_sec || ts->ts[2].tv_nsec) {
+				printf("found skb hwtstamp = %lu.%lu\n",
+				       ts->ts[2].tv_sec, ts->ts[2].tv_nsec);
+				return;
+			}
+			break;
+		default:
+			break;
+		}
+	}
+
+	printf("skb hwtstamp is not found!\n");
+}
+
+static bool complete_tx(struct xsk *xsk, clockid_t clock_id)
+{
+	struct xsk_tx_metadata *meta;
+	__u64 addr;
+	void *data;
+	__u32 idx;
+
+	if (!xsk_ring_cons__peek(&xsk->comp, 1, &idx))
+		return false;
+
+	addr = *xsk_ring_cons__comp_addr(&xsk->comp, idx);
+	data = xsk_umem__get_data(xsk->umem_area, addr);
+	meta = data - sizeof(struct xsk_tx_metadata);
+
+	printf("%p: complete tx idx=%u addr=%llx\n", xsk, idx, addr);
+
+	if (meta->completion.tx_timestamp) {
+		__u64 ref_tstamp = gettime(clock_id);
+
+		if (launch_time_delta_to_hw_rx_timestamp) {
+			print_tstamp_delta("HW Launch-time",
+					   "HW TX-complete-time",
+					   last_launch_time,
+					   meta->completion.tx_timestamp);
+		}
+		print_tstamp_delta("HW TX-complete-time", "User TX-complete-time",
+				   meta->completion.tx_timestamp, ref_tstamp);
+		print_tstamp_delta("XDP RX-time", "User TX-complete-time",
+				   last_xdp_rx_timestamp, ref_tstamp);
+		print_tstamp_delta("HW RX-time", "HW TX-complete-time",
+				   last_hw_rx_timestamp, meta->completion.tx_timestamp);
+	} else {
+		printf("No tx_timestamp\n");
+	}
+
+	xsk_ring_cons__release(&xsk->comp, 1);
+
+	return true;
+}
+
+#define swap(a, b, len) do { \
+	for (int i = 0; i < len; i++) { \
+		__u8 tmp = ((__u8 *)a)[i]; \
+		((__u8 *)a)[i] = ((__u8 *)b)[i]; \
+		((__u8 *)b)[i] = tmp; \
+	} \
+} while (0)
+
+static void ping_pong(struct xsk *xsk, void *rx_packet, clockid_t clock_id)
+{
+	struct xsk_tx_metadata *meta;
+	struct ipv6hdr *ip6h = NULL;
+	struct iphdr *iph = NULL;
+	struct xdp_desc *tx_desc;
+	struct udphdr *udph;
+	struct ethhdr *eth;
+	__sum16 want_csum;
+	void *data;
+	__u32 idx;
+	int ret;
+	int len;
+
+	ret = xsk_ring_prod__reserve(&xsk->tx, 1, &idx);
+	if (ret != 1) {
+		printf("%p: failed to reserve tx slot\n", xsk);
+		return;
+	}
+
+	tx_desc = xsk_ring_prod__tx_desc(&xsk->tx, idx);
+	tx_desc->addr = idx % (UMEM_NUM / 2) * UMEM_FRAME_SIZE + sizeof(struct xsk_tx_metadata);
+	data = xsk_umem__get_data(xsk->umem_area, tx_desc->addr);
+
+	meta = data - sizeof(struct xsk_tx_metadata);
+	memset(meta, 0, sizeof(*meta));
+	meta->flags = XDP_TXMD_FLAGS_TIMESTAMP;
+
+	eth = rx_packet;
+
+	if (eth->h_proto == htons(ETH_P_IP)) {
+		iph = (void *)(eth + 1);
+		udph = (void *)(iph + 1);
+	} else if (eth->h_proto == htons(ETH_P_IPV6)) {
+		ip6h = (void *)(eth + 1);
+		udph = (void *)(ip6h + 1);
+	} else {
+		printf("%p: failed to detect IP version for ping pong %04x\n", xsk, eth->h_proto);
+		xsk_ring_prod__cancel(&xsk->tx, 1);
+		return;
+	}
+
+	len = ETH_HLEN;
+	if (ip6h)
+		len += sizeof(*ip6h) + ntohs(ip6h->payload_len);
+	if (iph)
+		len += ntohs(iph->tot_len);
+
+	swap(eth->h_dest, eth->h_source, ETH_ALEN);
+	if (iph)
+		swap(&iph->saddr, &iph->daddr, 4);
+	else
+		swap(&ip6h->saddr, &ip6h->daddr, 16);
+	swap(&udph->source, &udph->dest, 2);
+
+	want_csum = udph->check;
+	if (ip6h)
+		udph->check = ~csum_ipv6_magic(&ip6h->saddr, &ip6h->daddr,
+					       ntohs(udph->len), IPPROTO_UDP, 0);
+	else
+		udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
+						 ntohs(udph->len), IPPROTO_UDP, 0);
+
+	meta->flags |= XDP_TXMD_FLAGS_CHECKSUM;
+	if (iph)
+		meta->request.csum_start = sizeof(*eth) + sizeof(*iph);
+	else
+		meta->request.csum_start = sizeof(*eth) + sizeof(*ip6h);
+	meta->request.csum_offset = offsetof(struct udphdr, check);
+
+	printf("%p: ping-pong with csum=%04x (want %04x) csum_start=%d csum_offset=%d\n",
+	       xsk, ntohs(udph->check), ntohs(want_csum),
+	       meta->request.csum_start, meta->request.csum_offset);
+
+	/* Set the value of launch time */
+	if (launch_time_delta_to_hw_rx_timestamp) {
+		meta->flags |= XDP_TXMD_FLAGS_LAUNCH_TIME;
+		meta->request.launch_time = last_hw_rx_timestamp +
+					    launch_time_delta_to_hw_rx_timestamp;
+		last_launch_time = meta->request.launch_time;
+		print_tstamp_delta("HW RX-time", "HW Launch-time",
+				   last_hw_rx_timestamp,
+				   meta->request.launch_time);
+	}
+
+	memcpy(data, rx_packet, len); /* don't share umem chunk for simplicity */
+	tx_desc->options |= XDP_TX_METADATA;
+	tx_desc->len = len;
+
+	xsk_ring_prod__submit(&xsk->tx, 1);
+}
+
+static int verify_metadata(struct xsk *rx_xsk, int rxq, int server_fd, clockid_t clock_id)
+{
+	const struct xdp_desc *rx_desc;
+	struct pollfd fds[rxq + 1];
+	__u64 comp_addr;
+	__u64 deadline;
+	__u64 addr;
+	__u32 idx = 0;
+	int ret;
+	int i;
+
+	for (i = 0; i < rxq; i++) {
+		fds[i].fd = xsk_socket__fd(rx_xsk[i].socket);
+		fds[i].events = POLLIN;
+		fds[i].revents = 0;
+	}
+
+	fds[rxq].fd = server_fd;
+	fds[rxq].events = POLLIN;
+	fds[rxq].revents = 0;
+
+	while (true) {
+		errno = 0;
+
+		for (i = 0; i < rxq; i++) {
+			ret = kick_rx(&rx_xsk[i]);
+			if (ret)
+				printf("kick_rx ret=%d\n", ret);
+		}
+
+		ret = poll(fds, rxq + 1, 1000);
+		printf("poll: %d (%d) skip=%llu fail=%llu redir=%llu\n",
+		       ret, errno, bpf_obj->bss->pkts_skip,
+		       bpf_obj->bss->pkts_fail, bpf_obj->bss->pkts_redir);
+		if (ret < 0)
+			break;
+		if (ret == 0)
+			continue;
+
+		if (fds[rxq].revents)
+			verify_skb_metadata(server_fd);
+
+		for (i = 0; i < rxq; i++) {
+			bool first_seg = true;
+			bool is_eop = true;
+
+			if (fds[i].revents == 0)
+				continue;
+
+			struct xsk *xsk = &rx_xsk[i];
+peek:
+			ret = xsk_ring_cons__peek(&xsk->rx, 1, &idx);
+			printf("xsk_ring_cons__peek: %d\n", ret);
+			if (ret != 1)
+				continue;
+
+			rx_desc = xsk_ring_cons__rx_desc(&xsk->rx, idx);
+			comp_addr = xsk_umem__extract_addr(rx_desc->addr);
+			addr = xsk_umem__add_offset_to_addr(rx_desc->addr);
+			is_eop = !(rx_desc->options & XDP_PKT_CONTD);
+			printf("%p: rx_desc[%u]->addr=%llx addr=%llx comp_addr=%llx%s\n",
+			       xsk, idx, rx_desc->addr, addr, comp_addr, is_eop ? " EoP" : "");
+			if (first_seg) {
+				verify_xdp_metadata(xsk_umem__get_data(xsk->umem_area, addr),
+						    clock_id);
+				first_seg = false;
+
+				if (!skip_tx) {
+					/* mirror first chunk back */
+					ping_pong(xsk, xsk_umem__get_data(xsk->umem_area, addr),
+						  clock_id);
+
+					ret = kick_tx(xsk);
+					if (ret)
+						printf("kick_tx ret=%d\n", ret);
+
+					/* wait 1 second + cover launch time */
+					deadline = gettime(clock_id) +
+						   NANOSEC_PER_SEC +
+						   launch_time_delta_to_hw_rx_timestamp;
+					while (true) {
+						if (complete_tx(xsk, clock_id))
+							break;
+						if (gettime(clock_id) >= deadline)
+							break;
+						usleep(10);
+					}
+				}
+			}
+
+			xsk_ring_cons__release(&xsk->rx, 1);
+			refill_rx(xsk, comp_addr);
+			if (!is_eop)
+				goto peek;
+		}
+	}
+
+	return 0;
+}
+
+static int rxq_num(const char *ifname)
+{
+	struct ethtool_channels ch = {
+		.cmd = ETHTOOL_GCHANNELS,
+	};
+
+	struct ifreq ifr = {
+		.ifr_data = (void *)&ch,
+	};
+	strncpy(ifr.ifr_name, ifname, IF_NAMESIZE - 1);
+	int fd, ret;
+
+	fd = socket(AF_UNIX, SOCK_DGRAM, 0);
+	if (fd < 0)
+		error(1, errno, "socket");
+
+	ret = ioctl(fd, SIOCETHTOOL, &ifr);
+	if (ret < 0)
+		error(1, errno, "ioctl(SIOCETHTOOL)");
+
+	close(fd);
+
+	return ch.rx_count + ch.combined_count;
+}
+
+static void hwtstamp_ioctl(int op, const char *ifname, struct hwtstamp_config *cfg)
+{
+	struct ifreq ifr = {
+		.ifr_data = (void *)cfg,
+	};
+	strncpy(ifr.ifr_name, ifname, IF_NAMESIZE - 1);
+	int fd, ret;
+
+	fd = socket(AF_UNIX, SOCK_DGRAM, 0);
+	if (fd < 0)
+		error(1, errno, "socket");
+
+	ret = ioctl(fd, op, &ifr);
+	if (ret < 0)
+		error(1, errno, "ioctl(%d)", op);
+
+	close(fd);
+}
+
+static struct hwtstamp_config saved_hwtstamp_cfg;
+static const char *saved_hwtstamp_ifname;
+
+static void hwtstamp_restore(void)
+{
+	hwtstamp_ioctl(SIOCSHWTSTAMP, saved_hwtstamp_ifname, &saved_hwtstamp_cfg);
+}
+
+static void hwtstamp_enable(const char *ifname)
+{
+	struct hwtstamp_config cfg = {
+		.rx_filter = HWTSTAMP_FILTER_ALL,
+		.tx_type = HWTSTAMP_TX_ON,
+	};
+
+	hwtstamp_ioctl(SIOCGHWTSTAMP, ifname, &saved_hwtstamp_cfg);
+	saved_hwtstamp_ifname = strdup(ifname);
+	atexit(hwtstamp_restore);
+
+	hwtstamp_ioctl(SIOCSHWTSTAMP, ifname, &cfg);
+}
+
+static void cleanup(void)
+{
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+	int ret;
+	int i;
+
+	if (bpf_obj) {
+		opts.old_prog_fd = bpf_program__fd(bpf_obj->progs.rx);
+		if (opts.old_prog_fd >= 0) {
+			printf("detaching bpf program....\n");
+			ret = bpf_xdp_detach(ifindex, XDP_FLAGS, &opts);
+			if (ret)
+				printf("failed to detach XDP program: %d\n", ret);
+		}
+	}
+
+	for (i = 0; i < rxq; i++)
+		close_xsk(&rx_xsk[i]);
+
+	if (bpf_obj)
+		xdp_hw_metadata__destroy(bpf_obj);
+
+	free((void *)saved_hwtstamp_ifname);
+}
+
+static void handle_signal(int sig)
+{
+	/* interrupting poll() is all we need */
+}
+
+static void timestamping_enable(int fd, int val)
+{
+	int ret;
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val));
+	if (ret < 0)
+		error(1, errno, "setsockopt(SO_TIMESTAMPING)");
+}
+
+static void print_usage(void)
+{
+	const char *usage =
+		"Usage: xdp_hw_metadata [OPTIONS] [IFNAME]\n"
+		"  -c    Run in copy mode (zerocopy is default)\n"
+		"  -h    Display this help and exit\n\n"
+		"  -m    Enable multi-buffer XDP for larger MTU\n"
+		"  -r    Don't generate AF_XDP reply (rx metadata only)\n"
+		"  -l    Delta of launch time relative to HW RX-time in ns\n"
+		"        default: 0 ns (launch time request is disabled)\n"
+		"  -L    Tx Queue to be enabled with launch time offload\n"
+		"        default: 0 (Tx Queue 0)\n"
+		"Generate test packets on the other machine with:\n"
+		"  echo -n xdp | nc -u -q1 <dst_ip> 9091\n";
+
+	printf("%s", usage);
+}
+
+static void read_args(int argc, char *argv[])
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "chmrl:L:")) != -1) {
+		switch (opt) {
+		case 'c':
+			bind_flags &= ~XDP_USE_NEED_WAKEUP;
+			bind_flags &= ~XDP_ZEROCOPY;
+			bind_flags |= XDP_COPY;
+			break;
+		case 'h':
+			print_usage();
+			exit(0);
+		case 'm':
+			bind_flags |= XDP_USE_SG;
+			break;
+		case 'r':
+			skip_tx = true;
+			break;
+		case 'l':
+			launch_time_delta_to_hw_rx_timestamp = atoll(optarg);
+			break;
+		case 'L':
+			launch_time_queue = atoll(optarg);
+			break;
+		case '?':
+			if (isprint(optopt))
+				fprintf(stderr, "Unknown option: -%c\n", optopt);
+			fallthrough;
+		default:
+			print_usage();
+			error(-1, opterr, "Command line options error");
+		}
+	}
+
+	if (optind >= argc) {
+		fprintf(stderr, "No device name provided\n");
+		print_usage();
+		exit(-1);
+	}
+
+	ifname = argv[optind];
+	ifindex = if_nametoindex(ifname);
+
+	if (!ifname)
+		error(-1, errno, "Invalid interface name");
+}
+
+void clean_existing_configurations(void)
+{
+	/* Check and delete root qdisc if exists */
+	if (run_command("sudo tc qdisc show dev %s | grep -q 'qdisc mqprio 8001:'", ifname) == 0)
+		run_command("sudo tc qdisc del dev %s root", ifname);
+
+	/* Check and delete ingress qdisc if exists */
+	if (run_command("sudo tc qdisc show dev %s | grep -q 'qdisc ingress ffff:'", ifname) == 0)
+		run_command("sudo tc qdisc del dev %s ingress", ifname);
+
+	/* Check and delete ethtool filters if any exist */
+	if (run_command("sudo ethtool -n %s | grep -q 'Filter:'", ifname) == 0) {
+		run_command("sudo ethtool -n %s | grep 'Filter:' | awk '{print $2}' | xargs -n1 sudo ethtool -N %s delete >&2",
+			    ifname, ifname);
+	}
+}
+
+#define MAX_TC 16
+
+int main(int argc, char *argv[])
+{
+	clockid_t clock_id = CLOCK_TAI;
+	struct bpf_program *prog;
+	int server_fd = -1;
+	size_t map_len = 0;
+	size_t que_len = 0;
+	char *buf = NULL;
+	char *map = NULL;
+	char *que = NULL;
+	char *tmp = NULL;
+	int tc = 0;
+	int ret;
+	int i;
+
+	read_args(argc, argv);
+
+	rxq = rxq_num(ifname);
+	printf("rxq: %d\n", rxq);
+
+	if (launch_time_queue >= rxq || launch_time_queue < 0)
+		error(1, 0, "Invalid launch_time_queue.");
+
+	clean_existing_configurations();
+	sleep(1);
+
+	/* Enable tx and rx hardware timestamping */
+	hwtstamp_enable(ifname);
+
+	/* Prepare priority to traffic class map for tc-mqprio */
+	for (i = 0; i < MAX_TC; i++) {
+		if (i < rxq)
+			tc = i;
+
+		if (asprintf(&buf, "%d ", tc) == -1) {
+			printf("Failed to malloc buf for tc map.\n");
+			goto free_mem;
+		}
+
+		map_len += strlen(buf);
+		tmp = realloc(map, map_len + 1);
+		if (!tmp) {
+			printf("Failed to realloc tc map.\n");
+			goto free_mem;
+		}
+		map = tmp;
+		strcat(map, buf);
+		free(buf);
+		buf = NULL;
+	}
+
+	/* Prepare traffic class to hardware queue map for tc-mqprio */
+	for (i = 0; i <= tc; i++) {
+		if (asprintf(&buf, "1@%d ", i) == -1) {
+			printf("Failed to malloc buf for tc queues.\n");
+			goto free_mem;
+		}
+
+		que_len += strlen(buf);
+		tmp = realloc(que, que_len + 1);
+		if (!tmp) {
+			printf("Failed to realloc tc queues.\n");
+			goto free_mem;
+		}
+		que = tmp;
+		strcat(que, buf);
+		free(buf);
+		buf = NULL;
+	}
+
+	/* Add mqprio qdisc */
+	run_command("sudo tc qdisc add dev %s handle 8001: parent root mqprio num_tc %d map %squeues %shw 0",
+		    ifname, tc + 1, map, que);
+
+	/* To test launch time, send UDP packet with VLAN priority 1 to port 9091 */
+	if (launch_time_delta_to_hw_rx_timestamp) {
+		/* Enable launch time hardware offload on launch_time_queue */
+		run_command("sudo tc qdisc replace dev %s parent 8001:%d etf offload clockid CLOCK_TAI delta 500000",
+			    ifname, launch_time_queue + 1);
+		sleep(1);
+
+		/* Route incoming packet with VLAN priority 1 into launch_time_queue */
+		if (run_command("sudo ethtool -N %s flow-type ether vlan 0x2000 vlan-mask 0x1FFF action %d",
+				ifname, launch_time_queue)) {
+			run_command("sudo tc qdisc add dev %s ingress", ifname);
+			run_command("sudo tc filter add dev %s parent ffff: protocol 802.1Q flower vlan_prio 1 hw_tc %d",
+				    ifname, launch_time_queue);
+		}
+
+		/* Enable VLAN tag stripping offload */
+		run_command("sudo ethtool -K %s rxvlan on", ifname);
+	}
+
+	rx_xsk = malloc(sizeof(struct xsk) * rxq);
+	if (!rx_xsk)
+		error(1, ENOMEM, "malloc");
+
+	for (i = 0; i < rxq; i++) {
+		printf("open_xsk(%s, %p, %d)\n", ifname, &rx_xsk[i], i);
+		ret = open_xsk(ifindex, &rx_xsk[i], i);
+		if (ret)
+			error(1, -ret, "open_xsk");
+
+		printf("xsk_socket__fd() -> %d\n", xsk_socket__fd(rx_xsk[i].socket));
+	}
+
+	printf("open bpf program...\n");
+	bpf_obj = xdp_hw_metadata__open();
+	if (libbpf_get_error(bpf_obj))
+		error(1, libbpf_get_error(bpf_obj), "xdp_hw_metadata__open");
+
+	prog = bpf_object__find_program_by_name(bpf_obj->obj, "rx");
+	bpf_program__set_ifindex(prog, ifindex);
+	bpf_program__set_flags(prog, BPF_F_XDP_DEV_BOUND_ONLY);
+
+	printf("load bpf program...\n");
+	ret = xdp_hw_metadata__load(bpf_obj);
+	if (ret)
+		error(1, -ret, "xdp_hw_metadata__load");
+
+	printf("prepare skb endpoint...\n");
+	server_fd = start_server(AF_INET6, SOCK_DGRAM, NULL, 9092, 1000);
+	if (server_fd < 0)
+		error(1, errno, "start_server");
+	timestamping_enable(server_fd,
+			    SOF_TIMESTAMPING_SOFTWARE |
+			    SOF_TIMESTAMPING_RAW_HARDWARE);
+
+	printf("prepare xsk map...\n");
+	for (i = 0; i < rxq; i++) {
+		int sock_fd = xsk_socket__fd(rx_xsk[i].socket);
+		__u32 queue_id = i;
+
+		printf("map[%d] = %d\n", queue_id, sock_fd);
+		ret = bpf_map_update_elem(bpf_map__fd(bpf_obj->maps.xsk), &queue_id, &sock_fd, 0);
+		if (ret)
+			error(1, -ret, "bpf_map_update_elem");
+	}
+
+	printf("attach bpf program...\n");
+	ret = bpf_xdp_attach(ifindex,
+			     bpf_program__fd(bpf_obj->progs.rx),
+			     XDP_FLAGS, NULL);
+	if (ret)
+		error(1, -ret, "bpf_xdp_attach");
+
+	signal(SIGINT, handle_signal);
+	ret = verify_metadata(rx_xsk, rxq, server_fd, clock_id);
+	close(server_fd);
+	cleanup();
+	if (ret)
+		error(1, -ret, "verify_metadata");
+
+	clean_existing_configurations();
+
+free_mem:
+	free(buf);
+	free(map);
+	free(que);
+}
diff --git a/tools/testing/selftests/bpf/xdp_metadata.h b/tools/testing/selftests/bpf/xdp_metadata.h
new file mode 100644
index 000000000000..87318ad1117a
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_metadata.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#pragma once
+
+#ifndef ETH_P_IP
+#define ETH_P_IP 0x0800
+#endif
+
+#ifndef ETH_P_IPV6
+#define ETH_P_IPV6 0x86DD
+#endif
+
+#ifndef ETH_P_8021Q
+#define ETH_P_8021Q 0x8100
+#endif
+
+#ifndef ETH_P_8021AD
+#define ETH_P_8021AD 0x88A8
+#endif
+
+#ifndef BIT
+#define BIT(nr)			(1 << (nr))
+#endif
+
+/* Non-existent checksum status */
+#define XDP_CHECKSUM_MAGIC	BIT(2)
+
+enum xdp_meta_field {
+	XDP_META_FIELD_TS	= BIT(0),
+	XDP_META_FIELD_RSS	= BIT(1),
+	XDP_META_FIELD_VLAN_TAG	= BIT(2),
+};
+
+struct xdp_meta {
+	union {
+		__u64 rx_timestamp;
+		__s32 rx_timestamp_err;
+	};
+	__u64 xdp_timestamp;
+	__u32 rx_hash;
+	union {
+		__u32 rx_hash_type;
+		__s32 rx_hash_err;
+	};
+	union {
+		struct {
+			__be16 rx_vlan_proto;
+			__u16 rx_vlan_tci;
+		};
+		__s32 rx_vlan_tag_err;
+	};
+	enum xdp_meta_field hint_valid;
+};
diff --git a/tools/testing/selftests/bpf/xdp_synproxy.c b/tools/testing/selftests/bpf/xdp_synproxy.c
new file mode 100644
index 000000000000..ce68c342b56f
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_synproxy.c
@@ -0,0 +1,471 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#include <stdnoreturn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <net/if.h>
+#include <linux/if_link.h>
+#include <linux/limits.h>
+
+static unsigned int ifindex;
+static __u32 attached_prog_id;
+static bool attached_tc;
+
+static void noreturn cleanup(int sig)
+{
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+	int prog_fd;
+	int err;
+
+	if (attached_prog_id == 0)
+		exit(0);
+
+	if (attached_tc) {
+		LIBBPF_OPTS(bpf_tc_hook, hook,
+			    .ifindex = ifindex,
+			    .attach_point = BPF_TC_INGRESS);
+
+		err = bpf_tc_hook_destroy(&hook);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_hook_destroy: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to destroy the TC hook\n");
+			exit(1);
+		}
+		exit(0);
+	}
+
+	prog_fd = bpf_prog_get_fd_by_id(attached_prog_id);
+	if (prog_fd < 0) {
+		fprintf(stderr, "Error: bpf_prog_get_fd_by_id: %s\n", strerror(-prog_fd));
+		err = bpf_xdp_attach(ifindex, -1, 0, NULL);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to detach XDP program\n");
+			exit(1);
+		}
+	} else {
+		opts.old_prog_fd = prog_fd;
+		err = bpf_xdp_attach(ifindex, -1, XDP_FLAGS_REPLACE, &opts);
+		close(prog_fd);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd_opts: %s\n", strerror(-err));
+			/* Not an error if already replaced by someone else. */
+			if (err != -EEXIST) {
+				fprintf(stderr, "Failed to detach XDP program\n");
+				exit(1);
+			}
+		}
+	}
+	exit(0);
+}
+
+static noreturn void usage(const char *progname)
+{
+	fprintf(stderr, "Usage: %s [--iface <iface>|--prog <prog_id>] [--mss4 <mss ipv4> --mss6 <mss ipv6> --wscale <wscale> --ttl <ttl>] [--ports <port1>,<port2>,...] [--single] [--tc]\n",
+		progname);
+	exit(1);
+}
+
+static unsigned long parse_arg_ul(const char *progname, const char *arg, unsigned long limit)
+{
+	unsigned long res;
+	char *endptr;
+
+	errno = 0;
+	res = strtoul(arg, &endptr, 10);
+	if (errno != 0 || *endptr != '\0' || arg[0] == '\0' || res > limit)
+		usage(progname);
+
+	return res;
+}
+
+static void parse_options(int argc, char *argv[], unsigned int *ifindex, __u32 *prog_id,
+			  __u64 *tcpipopts, char **ports, bool *single, bool *tc)
+{
+	static struct option long_options[] = {
+		{ "help", no_argument, NULL, 'h' },
+		{ "iface", required_argument, NULL, 'i' },
+		{ "prog", required_argument, NULL, 'x' },
+		{ "mss4", required_argument, NULL, 4 },
+		{ "mss6", required_argument, NULL, 6 },
+		{ "wscale", required_argument, NULL, 'w' },
+		{ "ttl", required_argument, NULL, 't' },
+		{ "ports", required_argument, NULL, 'p' },
+		{ "single", no_argument, NULL, 's' },
+		{ "tc", no_argument, NULL, 'c' },
+		{ NULL, 0, NULL, 0 },
+	};
+	unsigned long mss4, wscale, ttl;
+	unsigned long long mss6;
+	unsigned int tcpipopts_mask = 0;
+
+	if (argc < 2)
+		usage(argv[0]);
+
+	*ifindex = 0;
+	*prog_id = 0;
+	*tcpipopts = 0;
+	*ports = NULL;
+	*single = false;
+	*tc = false;
+
+	while (true) {
+		int opt;
+
+		opt = getopt_long(argc, argv, "", long_options, NULL);
+		if (opt == -1)
+			break;
+
+		switch (opt) {
+		case 'h':
+			usage(argv[0]);
+			break;
+		case 'i':
+			*ifindex = if_nametoindex(optarg);
+			if (*ifindex == 0)
+				usage(argv[0]);
+			break;
+		case 'x':
+			*prog_id = parse_arg_ul(argv[0], optarg, UINT32_MAX);
+			if (*prog_id == 0)
+				usage(argv[0]);
+			break;
+		case 4:
+			mss4 = parse_arg_ul(argv[0], optarg, UINT16_MAX);
+			tcpipopts_mask |= 1 << 0;
+			break;
+		case 6:
+			mss6 = parse_arg_ul(argv[0], optarg, UINT16_MAX);
+			tcpipopts_mask |= 1 << 1;
+			break;
+		case 'w':
+			wscale = parse_arg_ul(argv[0], optarg, 14);
+			tcpipopts_mask |= 1 << 2;
+			break;
+		case 't':
+			ttl = parse_arg_ul(argv[0], optarg, UINT8_MAX);
+			tcpipopts_mask |= 1 << 3;
+			break;
+		case 'p':
+			*ports = optarg;
+			break;
+		case 's':
+			*single = true;
+			break;
+		case 'c':
+			*tc = true;
+			break;
+		default:
+			usage(argv[0]);
+		}
+	}
+	if (optind < argc)
+		usage(argv[0]);
+
+	if (tcpipopts_mask == 0xf) {
+		if (mss4 == 0 || mss6 == 0 || wscale == 0 || ttl == 0)
+			usage(argv[0]);
+		*tcpipopts = (mss6 << 32) | (ttl << 24) | (wscale << 16) | mss4;
+	} else if (tcpipopts_mask != 0) {
+		usage(argv[0]);
+	}
+
+	if (*ifindex != 0 && *prog_id != 0)
+		usage(argv[0]);
+	if (*ifindex == 0 && *prog_id == 0)
+		usage(argv[0]);
+}
+
+static int syncookie_attach(const char *argv0, unsigned int ifindex, bool tc)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	char xdp_filename[PATH_MAX];
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int prog_fd;
+	int err;
+
+	snprintf(xdp_filename, sizeof(xdp_filename), "%s_kern.bpf.o", argv0);
+	obj = bpf_object__open_file(xdp_filename, NULL);
+	err = libbpf_get_error(obj);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_object__open_file: %s\n", strerror(-err));
+		return err;
+	}
+
+	err = bpf_object__load(obj);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_object__open_file: %s\n", strerror(-err));
+		return err;
+	}
+
+	prog = bpf_object__find_program_by_name(obj, tc ? "syncookie_tc" : "syncookie_xdp");
+	if (!prog) {
+		fprintf(stderr, "Error: bpf_object__find_program_by_name: program was not found\n");
+		return -ENOENT;
+	}
+
+	prog_fd = bpf_program__fd(prog);
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_prog_get_info_by_fd: %s\n",
+			strerror(-err));
+		goto out;
+	}
+	attached_tc = tc;
+	attached_prog_id = info.id;
+	signal(SIGINT, cleanup);
+	signal(SIGTERM, cleanup);
+	if (tc) {
+		LIBBPF_OPTS(bpf_tc_hook, hook,
+			    .ifindex = ifindex,
+			    .attach_point = BPF_TC_INGRESS);
+		LIBBPF_OPTS(bpf_tc_opts, opts,
+			    .handle = 1,
+			    .priority = 1,
+			    .prog_fd = prog_fd);
+
+		err = bpf_tc_hook_create(&hook);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_hook_create: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+		err = bpf_tc_attach(&hook, &opts);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_attach: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+
+	} else {
+		err = bpf_xdp_attach(ifindex, prog_fd,
+				     XDP_FLAGS_UPDATE_IF_NOEXIST, NULL);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+	}
+	err = 0;
+out:
+	bpf_object__close(obj);
+	return err;
+fail:
+	signal(SIGINT, SIG_DFL);
+	signal(SIGTERM, SIG_DFL);
+	attached_prog_id = 0;
+	goto out;
+}
+
+static int syncookie_open_bpf_maps(__u32 prog_id, int *values_map_fd, int *ports_map_fd)
+{
+	struct bpf_prog_info prog_info;
+	__u32 map_ids[8];
+	__u32 info_len;
+	int prog_fd;
+	int err;
+	int i;
+
+	*values_map_fd = -1;
+	*ports_map_fd = -1;
+
+	prog_fd = bpf_prog_get_fd_by_id(prog_id);
+	if (prog_fd < 0) {
+		fprintf(stderr, "Error: bpf_prog_get_fd_by_id: %s\n", strerror(-prog_fd));
+		return prog_fd;
+	}
+
+	prog_info = (struct bpf_prog_info) {
+		.nr_map_ids = 8,
+		.map_ids = (__u64)(unsigned long)map_ids,
+	};
+	info_len = sizeof(prog_info);
+
+	err = bpf_prog_get_info_by_fd(prog_fd, &prog_info, &info_len);
+	if (err != 0) {
+		fprintf(stderr, "Error: bpf_prog_get_info_by_fd: %s\n",
+			strerror(-err));
+		goto out;
+	}
+
+	if (prog_info.nr_map_ids < 2) {
+		fprintf(stderr, "Error: Found %u BPF maps, expected at least 2\n",
+			prog_info.nr_map_ids);
+		err = -ENOENT;
+		goto out;
+	}
+
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		struct bpf_map_info map_info = {};
+		int map_fd;
+
+		err = bpf_map_get_fd_by_id(map_ids[i]);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_map_get_fd_by_id: %s\n", strerror(-err));
+			goto err_close_map_fds;
+		}
+		map_fd = err;
+
+		info_len = sizeof(map_info);
+		err = bpf_map_get_info_by_fd(map_fd, &map_info, &info_len);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_get_info_by_fd: %s\n",
+				strerror(-err));
+			close(map_fd);
+			goto err_close_map_fds;
+		}
+		if (strcmp(map_info.name, "values") == 0) {
+			*values_map_fd = map_fd;
+			continue;
+		}
+		if (strcmp(map_info.name, "allowed_ports") == 0) {
+			*ports_map_fd = map_fd;
+			continue;
+		}
+		close(map_fd);
+	}
+
+	if (*values_map_fd != -1 && *ports_map_fd != -1) {
+		err = 0;
+		goto out;
+	}
+
+	err = -ENOENT;
+
+err_close_map_fds:
+	if (*values_map_fd != -1)
+		close(*values_map_fd);
+	if (*ports_map_fd != -1)
+		close(*ports_map_fd);
+	*values_map_fd = -1;
+	*ports_map_fd = -1;
+
+out:
+	close(prog_fd);
+	return err;
+}
+
+int main(int argc, char *argv[])
+{
+	int values_map_fd, ports_map_fd;
+	__u64 tcpipopts;
+	bool firstiter;
+	__u64 prevcnt;
+	__u32 prog_id;
+	char *ports;
+	bool single;
+	int err = 0;
+	bool tc;
+
+	parse_options(argc, argv, &ifindex, &prog_id, &tcpipopts, &ports,
+		      &single, &tc);
+
+	if (prog_id == 0) {
+		if (!tc) {
+			err = bpf_xdp_query_id(ifindex, 0, &prog_id);
+			if (err < 0) {
+				fprintf(stderr, "Error: bpf_get_link_xdp_id: %s\n",
+					strerror(-err));
+				goto out;
+			}
+		}
+		if (prog_id == 0) {
+			err = syncookie_attach(argv[0], ifindex, tc);
+			if (err < 0)
+				goto out;
+			prog_id = attached_prog_id;
+		}
+	}
+
+	err = syncookie_open_bpf_maps(prog_id, &values_map_fd, &ports_map_fd);
+	if (err < 0)
+		goto out;
+
+	if (ports) {
+		__u16 port_last = 0;
+		__u32 port_idx = 0;
+		char *p = ports;
+
+		fprintf(stderr, "Replacing allowed ports\n");
+
+		while (p && *p != '\0') {
+			char *token = strsep(&p, ",");
+			__u16 port;
+
+			port = parse_arg_ul(argv[0], token, UINT16_MAX);
+			err = bpf_map_update_elem(ports_map_fd, &port_idx, &port, BPF_ANY);
+			if (err != 0) {
+				fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+				fprintf(stderr, "Failed to add port %u (index %u)\n",
+					port, port_idx);
+				goto out_close_maps;
+			}
+			fprintf(stderr, "Added port %u\n", port);
+			port_idx++;
+		}
+		err = bpf_map_update_elem(ports_map_fd, &port_idx, &port_last, BPF_ANY);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to add the terminator value 0 (index %u)\n",
+				port_idx);
+			goto out_close_maps;
+		}
+	}
+
+	if (tcpipopts) {
+		__u32 key = 0;
+
+		fprintf(stderr, "Replacing TCP/IP options\n");
+
+		err = bpf_map_update_elem(values_map_fd, &key, &tcpipopts, BPF_ANY);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+			goto out_close_maps;
+		}
+	}
+
+	if ((ports || tcpipopts) && attached_prog_id == 0 && !single)
+		goto out_close_maps;
+
+	prevcnt = 0;
+	firstiter = true;
+	while (true) {
+		__u32 key = 1;
+		__u64 value;
+
+		err = bpf_map_lookup_elem(values_map_fd, &key, &value);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_lookup_elem: %s\n", strerror(-err));
+			goto out_close_maps;
+		}
+		if (firstiter) {
+			prevcnt = value;
+			firstiter = false;
+		}
+		if (single) {
+			printf("Total SYNACKs generated: %llu\n", value);
+			break;
+		}
+		printf("SYNACKs generated: %llu (total %llu)\n", value - prevcnt, value);
+		prevcnt = value;
+		sleep(1);
+	}
+
+out_close_maps:
+	close(values_map_fd);
+	close(ports_map_fd);
+out:
+	return err == 0 ? 0 : 1;
+}
diff --git a/tools/testing/selftests/bpf/xdping.c b/tools/testing/selftests/bpf/xdping.c
new file mode 100644
index 000000000000..9ed8c796645d
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdping.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. */
+
+#include <linux/bpf.h>
+#include <linux/if_link.h>
+#include <arpa/inet.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <libgen.h>
+#include <net/if.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "bpf/bpf.h"
+#include "bpf/libbpf.h"
+
+#include "xdping.h"
+#include "testing_helpers.h"
+
+static int ifindex;
+static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
+
+static void cleanup(int sig)
+{
+	bpf_xdp_detach(ifindex, xdp_flags, NULL);
+	if (sig)
+		exit(1);
+}
+
+static int get_stats(int fd, __u16 count, __u32 raddr)
+{
+	struct pinginfo pinginfo = { 0 };
+	char inaddrbuf[INET_ADDRSTRLEN];
+	struct in_addr inaddr;
+	__u16 i;
+
+	inaddr.s_addr = raddr;
+
+	printf("\nXDP RTT data:\n");
+
+	if (bpf_map_lookup_elem(fd, &raddr, &pinginfo)) {
+		perror("bpf_map_lookup elem");
+		return 1;
+	}
+
+	for (i = 0; i < count; i++) {
+		if (pinginfo.times[i] == 0)
+			break;
+
+		printf("64 bytes from %s: icmp_seq=%d ttl=64 time=%#.5f ms\n",
+		       inet_ntop(AF_INET, &inaddr, inaddrbuf,
+				 sizeof(inaddrbuf)),
+		       count + i + 1,
+		       (double)pinginfo.times[i]/1000000);
+	}
+
+	if (i < count) {
+		fprintf(stderr, "Expected %d samples, got %d.\n", count, i);
+		return 1;
+	}
+
+	bpf_map_delete_elem(fd, &raddr);
+
+	return 0;
+}
+
+static void show_usage(const char *prog)
+{
+	fprintf(stderr,
+		"usage: %s [OPTS] -I interface destination\n\n"
+		"OPTS:\n"
+		"    -c count		Stop after sending count requests\n"
+		"			(default %d, max %d)\n"
+		"    -I interface	interface name\n"
+		"    -N			Run in driver mode\n"
+		"    -s			Server mode\n"
+		"    -S			Run in skb mode\n",
+		prog, XDPING_DEFAULT_COUNT, XDPING_MAX_COUNT);
+}
+
+int main(int argc, char **argv)
+{
+	__u32 mode_flags = XDP_FLAGS_DRV_MODE | XDP_FLAGS_SKB_MODE;
+	struct addrinfo *a, hints = { .ai_family = AF_INET };
+	__u16 count = XDPING_DEFAULT_COUNT;
+	struct pinginfo pinginfo = { 0 };
+	const char *optstr = "c:I:NsS";
+	struct bpf_program *main_prog;
+	int prog_fd = -1, map_fd = -1;
+	struct sockaddr_in rin;
+	struct bpf_object *obj;
+	struct bpf_map *map;
+	char *ifname = NULL;
+	char filename[256];
+	int opt, ret = 1;
+	__u32 raddr = 0;
+	int server = 0;
+	char cmd[256];
+
+	while ((opt = getopt(argc, argv, optstr)) != -1) {
+		switch (opt) {
+		case 'c':
+			count = atoi(optarg);
+			if (count < 1 || count > XDPING_MAX_COUNT) {
+				fprintf(stderr,
+					"min count is 1, max count is %d\n",
+					XDPING_MAX_COUNT);
+				return 1;
+			}
+			break;
+		case 'I':
+			ifname = optarg;
+			ifindex = if_nametoindex(ifname);
+			if (!ifindex) {
+				fprintf(stderr, "Could not get interface %s\n",
+					ifname);
+				return 1;
+			}
+			break;
+		case 'N':
+			xdp_flags |= XDP_FLAGS_DRV_MODE;
+			break;
+		case 's':
+			/* use server program */
+			server = 1;
+			break;
+		case 'S':
+			xdp_flags |= XDP_FLAGS_SKB_MODE;
+			break;
+		default:
+			show_usage(basename(argv[0]));
+			return 1;
+		}
+	}
+
+	if (!ifname) {
+		show_usage(basename(argv[0]));
+		return 1;
+	}
+	if (!server && optind == argc) {
+		show_usage(basename(argv[0]));
+		return 1;
+	}
+
+	if ((xdp_flags & mode_flags) == mode_flags) {
+		fprintf(stderr, "-N or -S can be specified, not both.\n");
+		show_usage(basename(argv[0]));
+		return 1;
+	}
+
+	if (!server) {
+		/* Only supports IPv4; see hints initialization above. */
+		if (getaddrinfo(argv[optind], NULL, &hints, &a) || !a) {
+			fprintf(stderr, "Could not resolve %s\n", argv[optind]);
+			return 1;
+		}
+		memcpy(&rin, a->ai_addr, sizeof(rin));
+		raddr = rin.sin_addr.s_addr;
+		freeaddrinfo(a);
+	}
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	snprintf(filename, sizeof(filename), "%s_kern.bpf.o", argv[0]);
+
+	if (bpf_prog_test_load(filename, BPF_PROG_TYPE_XDP, &obj, &prog_fd)) {
+		fprintf(stderr, "load of %s failed\n", filename);
+		return 1;
+	}
+
+	main_prog = bpf_object__find_program_by_name(obj,
+						     server ? "xdping_server" : "xdping_client");
+	if (main_prog)
+		prog_fd = bpf_program__fd(main_prog);
+	if (!main_prog || prog_fd < 0) {
+		fprintf(stderr, "could not find xdping program");
+		return 1;
+	}
+
+	map = bpf_object__next_map(obj, NULL);
+	if (map)
+		map_fd = bpf_map__fd(map);
+	if (!map || map_fd < 0) {
+		fprintf(stderr, "Could not find ping map");
+		goto done;
+	}
+
+	signal(SIGINT, cleanup);
+	signal(SIGTERM, cleanup);
+
+	printf("Setting up XDP for %s, please wait...\n", ifname);
+
+	printf("XDP setup disrupts network connectivity, hit Ctrl+C to quit\n");
+
+	if (bpf_xdp_attach(ifindex, prog_fd, xdp_flags, NULL) < 0) {
+		fprintf(stderr, "Link set xdp fd failed for %s\n", ifname);
+		goto done;
+	}
+
+	if (server) {
+		close(prog_fd);
+		close(map_fd);
+		printf("Running server on %s; press Ctrl+C to exit...\n",
+		       ifname);
+		do { } while (1);
+	}
+
+	/* Start xdping-ing from last regular ping reply, e.g. for a count
+	 * of 10 ICMP requests, we start xdping-ing using reply with seq number
+	 * 10.  The reason the last "real" ping RTT is much higher is that
+	 * the ping program sees the ICMP reply associated with the last
+	 * XDP-generated packet, so ping doesn't get a reply until XDP is done.
+	 */
+	pinginfo.seq = htons(count);
+	pinginfo.count = count;
+
+	if (bpf_map_update_elem(map_fd, &raddr, &pinginfo, BPF_ANY)) {
+		fprintf(stderr, "could not communicate with BPF map: %s\n",
+			strerror(errno));
+		cleanup(0);
+		goto done;
+	}
+
+	/* We need to wait for XDP setup to complete. */
+	sleep(10);
+
+	snprintf(cmd, sizeof(cmd), "ping -c %d -I %s %s",
+		 count, ifname, argv[optind]);
+
+	printf("\nNormal ping RTT data\n");
+	printf("[Ignore final RTT; it is distorted by XDP using the reply]\n");
+
+	ret = system(cmd);
+
+	if (!ret)
+		ret = get_stats(map_fd, count, raddr);
+
+	cleanup(0);
+
+done:
+	if (prog_fd > 0)
+		close(prog_fd);
+	if (map_fd > 0)
+		close(map_fd);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/bpf/xdping.h b/tools/testing/selftests/bpf/xdping.h
new file mode 100644
index 000000000000..afc578df77be
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdping.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. */
+
+#define	XDPING_MAX_COUNT	10
+#define	XDPING_DEFAULT_COUNT	4
+
+struct pinginfo {
+	__u64	start;
+	__be16	seq;
+	__u16	count;
+	__u32	pad;
+	__u64	times[XDPING_MAX_COUNT];
+};
diff --git a/tools/testing/selftests/bpf/xsk.c b/tools/testing/selftests/bpf/xsk.c
new file mode 100644
index 000000000000..25d568abf0f2
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk.c
@@ -0,0 +1,781 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * AF_XDP user-space access library.
+ *
+ * Copyright(c) 2018 - 2019 Intel Corporation.
+ *
+ * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <asm/barrier.h>
+#include <linux/compiler.h>
+#include <linux/ethtool.h>
+#include <linux/filter.h>
+#include <linux/if_ether.h>
+#include <linux/if_link.h>
+#include <linux/if_packet.h>
+#include <linux/if_xdp.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/sockios.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include "xsk.h"
+#include "bpf_util.h"
+
+#ifndef SOL_XDP
+ #define SOL_XDP 283
+#endif
+
+#ifndef AF_XDP
+ #define AF_XDP 44
+#endif
+
+#ifndef PF_XDP
+ #define PF_XDP AF_XDP
+#endif
+
+#define pr_warn(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)
+
+#define XSKMAP_SIZE 1
+
+struct xsk_umem {
+	struct xsk_ring_prod *fill_save;
+	struct xsk_ring_cons *comp_save;
+	char *umem_area;
+	struct xsk_umem_config config;
+	int fd;
+	int refcount;
+	struct list_head ctx_list;
+	bool rx_ring_setup_done;
+	bool tx_ring_setup_done;
+};
+
+struct xsk_ctx {
+	struct xsk_ring_prod *fill;
+	struct xsk_ring_cons *comp;
+	__u32 queue_id;
+	struct xsk_umem *umem;
+	int refcount;
+	int ifindex;
+	struct list_head list;
+};
+
+struct xsk_socket {
+	struct xsk_ring_cons *rx;
+	struct xsk_ring_prod *tx;
+	struct xsk_ctx *ctx;
+	struct xsk_socket_config config;
+	int fd;
+};
+
+struct nl_mtu_req {
+	struct nlmsghdr nh;
+	struct ifinfomsg msg;
+	char             buf[512];
+};
+
+int xsk_umem__fd(const struct xsk_umem *umem)
+{
+	return umem ? umem->fd : -EINVAL;
+}
+
+int xsk_socket__fd(const struct xsk_socket *xsk)
+{
+	return xsk ? xsk->fd : -EINVAL;
+}
+
+static bool xsk_page_aligned(void *buffer)
+{
+	unsigned long addr = (unsigned long)buffer;
+
+	return !(addr & (getpagesize() - 1));
+}
+
+static void xsk_set_umem_config(struct xsk_umem_config *cfg,
+				const struct xsk_umem_config *usr_cfg)
+{
+	if (!usr_cfg) {
+		cfg->fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+		cfg->comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+		cfg->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
+		cfg->frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM;
+		cfg->flags = XSK_UMEM__DEFAULT_FLAGS;
+		cfg->tx_metadata_len = 0;
+		return;
+	}
+
+	cfg->fill_size = usr_cfg->fill_size;
+	cfg->comp_size = usr_cfg->comp_size;
+	cfg->frame_size = usr_cfg->frame_size;
+	cfg->frame_headroom = usr_cfg->frame_headroom;
+	cfg->flags = usr_cfg->flags;
+	cfg->tx_metadata_len = usr_cfg->tx_metadata_len;
+}
+
+static int xsk_set_xdp_socket_config(struct xsk_socket_config *cfg,
+				     const struct xsk_socket_config *usr_cfg)
+{
+	if (!usr_cfg) {
+		cfg->rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+		cfg->tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+		cfg->bind_flags = 0;
+		return 0;
+	}
+
+	cfg->rx_size = usr_cfg->rx_size;
+	cfg->tx_size = usr_cfg->tx_size;
+	cfg->bind_flags = usr_cfg->bind_flags;
+
+	return 0;
+}
+
+static int xsk_get_mmap_offsets(int fd, struct xdp_mmap_offsets *off)
+{
+	socklen_t optlen;
+	int err;
+
+	optlen = sizeof(*off);
+	err = getsockopt(fd, SOL_XDP, XDP_MMAP_OFFSETS, off, &optlen);
+	if (err)
+		return err;
+
+	if (optlen == sizeof(*off))
+		return 0;
+
+	return -EINVAL;
+}
+
+static int xsk_create_umem_rings(struct xsk_umem *umem, int fd,
+				 struct xsk_ring_prod *fill,
+				 struct xsk_ring_cons *comp)
+{
+	struct xdp_mmap_offsets off;
+	void *map;
+	int err;
+
+	err = setsockopt(fd, SOL_XDP, XDP_UMEM_FILL_RING,
+			 &umem->config.fill_size,
+			 sizeof(umem->config.fill_size));
+	if (err)
+		return -errno;
+
+	err = setsockopt(fd, SOL_XDP, XDP_UMEM_COMPLETION_RING,
+			 &umem->config.comp_size,
+			 sizeof(umem->config.comp_size));
+	if (err)
+		return -errno;
+
+	err = xsk_get_mmap_offsets(fd, &off);
+	if (err)
+		return -errno;
+
+	map = mmap(NULL, off.fr.desc + umem->config.fill_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
+		   XDP_UMEM_PGOFF_FILL_RING);
+	if (map == MAP_FAILED)
+		return -errno;
+
+	fill->mask = umem->config.fill_size - 1;
+	fill->size = umem->config.fill_size;
+	fill->producer = map + off.fr.producer;
+	fill->consumer = map + off.fr.consumer;
+	fill->flags = map + off.fr.flags;
+	fill->ring = map + off.fr.desc;
+	fill->cached_cons = umem->config.fill_size;
+
+	map = mmap(NULL, off.cr.desc + umem->config.comp_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
+		   XDP_UMEM_PGOFF_COMPLETION_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_mmap;
+	}
+
+	comp->mask = umem->config.comp_size - 1;
+	comp->size = umem->config.comp_size;
+	comp->producer = map + off.cr.producer;
+	comp->consumer = map + off.cr.consumer;
+	comp->flags = map + off.cr.flags;
+	comp->ring = map + off.cr.desc;
+
+	return 0;
+
+out_mmap:
+	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));
+	return err;
+}
+
+int xsk_umem__create(struct xsk_umem **umem_ptr, void *umem_area,
+		     __u64 size, struct xsk_ring_prod *fill,
+		     struct xsk_ring_cons *comp,
+		     const struct xsk_umem_config *usr_config)
+{
+	struct xdp_umem_reg mr;
+	struct xsk_umem *umem;
+	int err;
+
+	if (!umem_area || !umem_ptr || !fill || !comp)
+		return -EFAULT;
+	if (!size && !xsk_page_aligned(umem_area))
+		return -EINVAL;
+
+	umem = calloc(1, sizeof(*umem));
+	if (!umem)
+		return -ENOMEM;
+
+	umem->fd = socket(AF_XDP, SOCK_RAW | SOCK_CLOEXEC, 0);
+	if (umem->fd < 0) {
+		err = -errno;
+		goto out_umem_alloc;
+	}
+
+	umem->umem_area = umem_area;
+	INIT_LIST_HEAD(&umem->ctx_list);
+	xsk_set_umem_config(&umem->config, usr_config);
+
+	memset(&mr, 0, sizeof(mr));
+	mr.addr = (uintptr_t)umem_area;
+	mr.len = size;
+	mr.chunk_size = umem->config.frame_size;
+	mr.headroom = umem->config.frame_headroom;
+	mr.flags = umem->config.flags;
+	mr.tx_metadata_len = umem->config.tx_metadata_len;
+
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_REG, &mr, sizeof(mr));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	err = xsk_create_umem_rings(umem, umem->fd, fill, comp);
+	if (err)
+		goto out_socket;
+
+	umem->fill_save = fill;
+	umem->comp_save = comp;
+	*umem_ptr = umem;
+	return 0;
+
+out_socket:
+	close(umem->fd);
+out_umem_alloc:
+	free(umem);
+	return err;
+}
+
+bool xsk_is_in_mode(u32 ifindex, int mode)
+{
+	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
+	int ret;
+
+	ret = bpf_xdp_query(ifindex, mode, &opts);
+	if (ret) {
+		printf("XDP mode query returned error %s\n", strerror(errno));
+		return false;
+	}
+
+	if (mode == XDP_FLAGS_DRV_MODE)
+		return opts.attach_mode == XDP_ATTACHED_DRV;
+	else if (mode == XDP_FLAGS_SKB_MODE)
+		return opts.attach_mode == XDP_ATTACHED_SKB;
+
+	return false;
+}
+
+/* Lifted from netlink.c in tools/lib/bpf */
+static int netlink_recvmsg(int sock, struct msghdr *mhdr, int flags)
+{
+	int len;
+
+	do {
+		len = recvmsg(sock, mhdr, flags);
+	} while (len < 0 && (errno == EINTR || errno == EAGAIN));
+
+	if (len < 0)
+		return -errno;
+	return len;
+}
+
+/* Lifted from netlink.c in tools/lib/bpf */
+static int alloc_iov(struct iovec *iov, int len)
+{
+	void *nbuf;
+
+	nbuf = realloc(iov->iov_base, len);
+	if (!nbuf)
+		return -ENOMEM;
+
+	iov->iov_base = nbuf;
+	iov->iov_len = len;
+	return 0;
+}
+
+/* Original version lifted from netlink.c in tools/lib/bpf */
+static int netlink_recv(int sock)
+{
+	struct iovec iov = {};
+	struct msghdr mhdr = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+	};
+	bool multipart = true;
+	struct nlmsgerr *err;
+	struct nlmsghdr *nh;
+	int len, ret;
+
+	ret = alloc_iov(&iov, 4096);
+	if (ret)
+		goto done;
+
+	while (multipart) {
+		multipart = false;
+		len = netlink_recvmsg(sock, &mhdr, MSG_PEEK | MSG_TRUNC);
+		if (len < 0) {
+			ret = len;
+			goto done;
+		}
+
+		if (len > iov.iov_len) {
+			ret = alloc_iov(&iov, len);
+			if (ret)
+				goto done;
+		}
+
+		len = netlink_recvmsg(sock, &mhdr, 0);
+		if (len < 0) {
+			ret = len;
+			goto done;
+		}
+
+		if (len == 0)
+			break;
+
+		for (nh = (struct nlmsghdr *)iov.iov_base; NLMSG_OK(nh, len);
+		     nh = NLMSG_NEXT(nh, len)) {
+			if (nh->nlmsg_flags & NLM_F_MULTI)
+				multipart = true;
+			switch (nh->nlmsg_type) {
+			case NLMSG_ERROR:
+				err = (struct nlmsgerr *)NLMSG_DATA(nh);
+				if (!err->error)
+					continue;
+				ret = err->error;
+				goto done;
+			case NLMSG_DONE:
+				ret = 0;
+				goto done;
+			default:
+				break;
+			}
+		}
+	}
+	ret = 0;
+done:
+	free(iov.iov_base);
+	return ret;
+}
+
+int xsk_set_mtu(int ifindex, int mtu)
+{
+	struct nl_mtu_req req;
+	struct rtattr *rta;
+	int fd, ret;
+
+	fd = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
+	if (fd < 0)
+		return fd;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(struct ifinfomsg));
+	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_type = RTM_NEWLINK;
+	req.msg.ifi_family = AF_UNSPEC;
+	req.msg.ifi_index = ifindex;
+	rta = (struct rtattr *)(((char *)&req) + NLMSG_ALIGN(req.nh.nlmsg_len));
+	rta->rta_type = IFLA_MTU;
+	rta->rta_len = RTA_LENGTH(sizeof(unsigned int));
+	req.nh.nlmsg_len = NLMSG_ALIGN(req.nh.nlmsg_len) + RTA_LENGTH(sizeof(mtu));
+	memcpy(RTA_DATA(rta), &mtu, sizeof(mtu));
+
+	ret = send(fd, &req, req.nh.nlmsg_len, 0);
+	if (ret < 0) {
+		close(fd);
+		return errno;
+	}
+
+	ret = netlink_recv(fd);
+	close(fd);
+	return ret;
+}
+
+int xsk_attach_xdp_program(struct bpf_program *prog, int ifindex, u32 xdp_flags)
+{
+	int prog_fd;
+
+	prog_fd = bpf_program__fd(prog);
+	return bpf_xdp_attach(ifindex, prog_fd, xdp_flags, NULL);
+}
+
+void xsk_detach_xdp_program(int ifindex, u32 xdp_flags)
+{
+	bpf_xdp_detach(ifindex, xdp_flags, NULL);
+}
+
+void xsk_clear_xskmap(struct bpf_map *map)
+{
+	u32 index = 0;
+	int map_fd;
+
+	map_fd = bpf_map__fd(map);
+	bpf_map_delete_elem(map_fd, &index);
+}
+
+int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index)
+{
+	int map_fd, sock_fd;
+
+	map_fd = bpf_map__fd(map);
+	sock_fd = xsk_socket__fd(xsk);
+
+	return bpf_map_update_elem(map_fd, &index, &sock_fd, 0);
+}
+
+static struct xsk_ctx *xsk_get_ctx(struct xsk_umem *umem, int ifindex,
+				   __u32 queue_id)
+{
+	struct xsk_ctx *ctx;
+
+	if (list_empty(&umem->ctx_list))
+		return NULL;
+
+	list_for_each_entry(ctx, &umem->ctx_list, list) {
+		if (ctx->ifindex == ifindex && ctx->queue_id == queue_id) {
+			ctx->refcount++;
+			return ctx;
+		}
+	}
+
+	return NULL;
+}
+
+static void xsk_put_ctx(struct xsk_ctx *ctx, bool unmap)
+{
+	struct xsk_umem *umem = ctx->umem;
+	struct xdp_mmap_offsets off;
+	int err;
+
+	if (--ctx->refcount)
+		return;
+
+	if (!unmap)
+		goto out_free;
+
+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (err)
+		goto out_free;
+
+	munmap(ctx->fill->ring - off.fr.desc, off.fr.desc + umem->config.fill_size *
+	       sizeof(__u64));
+	munmap(ctx->comp->ring - off.cr.desc, off.cr.desc + umem->config.comp_size *
+	       sizeof(__u64));
+
+out_free:
+	list_del(&ctx->list);
+	free(ctx);
+}
+
+static struct xsk_ctx *xsk_create_ctx(struct xsk_socket *xsk,
+				      struct xsk_umem *umem, int ifindex,
+				      __u32 queue_id,
+				      struct xsk_ring_prod *fill,
+				      struct xsk_ring_cons *comp)
+{
+	struct xsk_ctx *ctx;
+	int err;
+
+	ctx = calloc(1, sizeof(*ctx));
+	if (!ctx)
+		return NULL;
+
+	if (!umem->fill_save) {
+		err = xsk_create_umem_rings(umem, xsk->fd, fill, comp);
+		if (err) {
+			free(ctx);
+			return NULL;
+		}
+	} else if (umem->fill_save != fill || umem->comp_save != comp) {
+		/* Copy over rings to new structs. */
+		memcpy(fill, umem->fill_save, sizeof(*fill));
+		memcpy(comp, umem->comp_save, sizeof(*comp));
+	}
+
+	ctx->ifindex = ifindex;
+	ctx->refcount = 1;
+	ctx->umem = umem;
+	ctx->queue_id = queue_id;
+
+	ctx->fill = fill;
+	ctx->comp = comp;
+	list_add(&ctx->list, &umem->ctx_list);
+	return ctx;
+}
+
+int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
+			      int ifindex,
+			      __u32 queue_id, struct xsk_umem *umem,
+			      struct xsk_ring_cons *rx,
+			      struct xsk_ring_prod *tx,
+			      struct xsk_ring_prod *fill,
+			      struct xsk_ring_cons *comp,
+			      const struct xsk_socket_config *usr_config)
+{
+	bool unmap, rx_setup_done = false, tx_setup_done = false;
+	void *rx_map = NULL, *tx_map = NULL;
+	struct sockaddr_xdp sxdp = {};
+	struct xdp_mmap_offsets off;
+	struct xsk_socket *xsk;
+	struct xsk_ctx *ctx;
+	int err;
+
+	if (!umem || !xsk_ptr || !(rx || tx))
+		return -EFAULT;
+
+	unmap = umem->fill_save != fill;
+
+	xsk = calloc(1, sizeof(*xsk));
+	if (!xsk)
+		return -ENOMEM;
+
+	err = xsk_set_xdp_socket_config(&xsk->config, usr_config);
+	if (err)
+		goto out_xsk_alloc;
+
+	if (umem->refcount++ > 0) {
+		xsk->fd = socket(AF_XDP, SOCK_RAW | SOCK_CLOEXEC, 0);
+		if (xsk->fd < 0) {
+			err = -errno;
+			goto out_xsk_alloc;
+		}
+	} else {
+		xsk->fd = umem->fd;
+		rx_setup_done = umem->rx_ring_setup_done;
+		tx_setup_done = umem->tx_ring_setup_done;
+	}
+
+	ctx = xsk_get_ctx(umem, ifindex, queue_id);
+	if (!ctx) {
+		if (!fill || !comp) {
+			err = -EFAULT;
+			goto out_socket;
+		}
+
+		ctx = xsk_create_ctx(xsk, umem, ifindex, queue_id, fill, comp);
+		if (!ctx) {
+			err = -ENOMEM;
+			goto out_socket;
+		}
+	}
+	xsk->ctx = ctx;
+
+	if (rx && !rx_setup_done) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_RX_RING,
+				 &xsk->config.rx_size,
+				 sizeof(xsk->config.rx_size));
+		if (err) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+		if (xsk->fd == umem->fd)
+			umem->rx_ring_setup_done = true;
+	}
+	if (tx && !tx_setup_done) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_TX_RING,
+				 &xsk->config.tx_size,
+				 sizeof(xsk->config.tx_size));
+		if (err) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+		if (xsk->fd == umem->fd)
+			umem->tx_ring_setup_done = true;
+	}
+
+	err = xsk_get_mmap_offsets(xsk->fd, &off);
+	if (err) {
+		err = -errno;
+		goto out_put_ctx;
+	}
+
+	if (rx) {
+		rx_map = mmap(NULL, off.rx.desc +
+			      xsk->config.rx_size * sizeof(struct xdp_desc),
+			      PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
+			      xsk->fd, XDP_PGOFF_RX_RING);
+		if (rx_map == MAP_FAILED) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+
+		rx->mask = xsk->config.rx_size - 1;
+		rx->size = xsk->config.rx_size;
+		rx->producer = rx_map + off.rx.producer;
+		rx->consumer = rx_map + off.rx.consumer;
+		rx->flags = rx_map + off.rx.flags;
+		rx->ring = rx_map + off.rx.desc;
+		rx->cached_prod = *rx->producer;
+		rx->cached_cons = *rx->consumer;
+	}
+	xsk->rx = rx;
+
+	if (tx) {
+		tx_map = mmap(NULL, off.tx.desc +
+			      xsk->config.tx_size * sizeof(struct xdp_desc),
+			      PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
+			      xsk->fd, XDP_PGOFF_TX_RING);
+		if (tx_map == MAP_FAILED) {
+			err = -errno;
+			goto out_mmap_rx;
+		}
+
+		tx->mask = xsk->config.tx_size - 1;
+		tx->size = xsk->config.tx_size;
+		tx->producer = tx_map + off.tx.producer;
+		tx->consumer = tx_map + off.tx.consumer;
+		tx->flags = tx_map + off.tx.flags;
+		tx->ring = tx_map + off.tx.desc;
+		tx->cached_prod = *tx->producer;
+		/* cached_cons is r->size bigger than the real consumer pointer
+		 * See xsk_prod_nb_free
+		 */
+		tx->cached_cons = *tx->consumer + xsk->config.tx_size;
+	}
+	xsk->tx = tx;
+
+	sxdp.sxdp_family = PF_XDP;
+	sxdp.sxdp_ifindex = ctx->ifindex;
+	sxdp.sxdp_queue_id = ctx->queue_id;
+	if (umem->refcount > 1) {
+		sxdp.sxdp_flags |= XDP_SHARED_UMEM;
+		sxdp.sxdp_shared_umem_fd = umem->fd;
+	} else {
+		sxdp.sxdp_flags = xsk->config.bind_flags;
+	}
+
+	err = bind(xsk->fd, (struct sockaddr *)&sxdp, sizeof(sxdp));
+	if (err) {
+		err = -errno;
+		goto out_mmap_tx;
+	}
+
+	*xsk_ptr = xsk;
+	umem->fill_save = NULL;
+	umem->comp_save = NULL;
+	return 0;
+
+out_mmap_tx:
+	if (tx)
+		munmap(tx_map, off.tx.desc +
+		       xsk->config.tx_size * sizeof(struct xdp_desc));
+out_mmap_rx:
+	if (rx)
+		munmap(rx_map, off.rx.desc +
+		       xsk->config.rx_size * sizeof(struct xdp_desc));
+out_put_ctx:
+	xsk_put_ctx(ctx, unmap);
+out_socket:
+	if (--umem->refcount)
+		close(xsk->fd);
+out_xsk_alloc:
+	free(xsk);
+	return err;
+}
+
+int xsk_socket__create(struct xsk_socket **xsk_ptr, int ifindex,
+		       __u32 queue_id, struct xsk_umem *umem,
+		       struct xsk_ring_cons *rx, struct xsk_ring_prod *tx,
+		       const struct xsk_socket_config *usr_config)
+{
+	if (!umem)
+		return -EFAULT;
+
+	return xsk_socket__create_shared(xsk_ptr, ifindex, queue_id, umem,
+					 rx, tx, umem->fill_save,
+					 umem->comp_save, usr_config);
+}
+
+int xsk_umem__delete(struct xsk_umem *umem)
+{
+	struct xdp_mmap_offsets off;
+	int err;
+
+	if (!umem)
+		return 0;
+
+	if (umem->refcount)
+		return -EBUSY;
+
+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (!err && umem->fill_save && umem->comp_save) {
+		munmap(umem->fill_save->ring - off.fr.desc,
+		       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+		munmap(umem->comp_save->ring - off.cr.desc,
+		       off.cr.desc + umem->config.comp_size * sizeof(__u64));
+	}
+
+	close(umem->fd);
+	free(umem);
+
+	return 0;
+}
+
+void xsk_socket__delete(struct xsk_socket *xsk)
+{
+	size_t desc_sz = sizeof(struct xdp_desc);
+	struct xdp_mmap_offsets off;
+	struct xsk_umem *umem;
+	struct xsk_ctx *ctx;
+	int err;
+
+	if (!xsk)
+		return;
+
+	ctx = xsk->ctx;
+	umem = ctx->umem;
+
+	xsk_put_ctx(ctx, true);
+
+	err = xsk_get_mmap_offsets(xsk->fd, &off);
+	if (!err) {
+		if (xsk->rx) {
+			munmap(xsk->rx->ring - off.rx.desc,
+			       off.rx.desc + xsk->config.rx_size * desc_sz);
+		}
+		if (xsk->tx) {
+			munmap(xsk->tx->ring - off.tx.desc,
+			       off.tx.desc + xsk->config.tx_size * desc_sz);
+		}
+	}
+
+	umem->refcount--;
+	/* Do not close an fd that also has an associated umem connected
+	 * to it.
+	 */
+	if (xsk->fd != umem->fd)
+		close(xsk->fd);
+	free(xsk);
+}
diff --git a/tools/testing/selftests/bpf/xsk.h b/tools/testing/selftests/bpf/xsk.h
new file mode 100644
index 000000000000..48729da142c2
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk.h
@@ -0,0 +1,249 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+
+/*
+ * AF_XDP user-space access library.
+ *
+ * Copyright (c) 2018 - 2019 Intel Corporation.
+ * Copyright (c) 2019 Facebook
+ *
+ * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#ifndef __XSK_H
+#define __XSK_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <linux/if_xdp.h>
+
+#include <bpf/libbpf.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Do not access these members directly. Use the functions below. */
+#define DEFINE_XSK_RING(name) \
+struct name { \
+	__u32 cached_prod; \
+	__u32 cached_cons; \
+	__u32 mask; \
+	__u32 size; \
+	__u32 *producer; \
+	__u32 *consumer; \
+	void *ring; \
+	__u32 *flags; \
+}
+
+DEFINE_XSK_RING(xsk_ring_prod);
+DEFINE_XSK_RING(xsk_ring_cons);
+
+/* For a detailed explanation on the memory barriers associated with the
+ * ring, please take a look at net/xdp/xsk_queue.h.
+ */
+
+struct xsk_umem;
+struct xsk_socket;
+
+static inline __u64 *xsk_ring_prod__fill_addr(struct xsk_ring_prod *fill,
+					      __u32 idx)
+{
+	__u64 *addrs = (__u64 *)fill->ring;
+
+	return &addrs[idx & fill->mask];
+}
+
+static inline const __u64 *
+xsk_ring_cons__comp_addr(const struct xsk_ring_cons *comp, __u32 idx)
+{
+	const __u64 *addrs = (const __u64 *)comp->ring;
+
+	return &addrs[idx & comp->mask];
+}
+
+static inline struct xdp_desc *xsk_ring_prod__tx_desc(struct xsk_ring_prod *tx,
+						      __u32 idx)
+{
+	struct xdp_desc *descs = (struct xdp_desc *)tx->ring;
+
+	return &descs[idx & tx->mask];
+}
+
+static inline const struct xdp_desc *
+xsk_ring_cons__rx_desc(const struct xsk_ring_cons *rx, __u32 idx)
+{
+	const struct xdp_desc *descs = (const struct xdp_desc *)rx->ring;
+
+	return &descs[idx & rx->mask];
+}
+
+static inline int xsk_ring_prod__needs_wakeup(const struct xsk_ring_prod *r)
+{
+	return *r->flags & XDP_RING_NEED_WAKEUP;
+}
+
+static inline __u32 xsk_prod_nb_free(struct xsk_ring_prod *r, __u32 nb)
+{
+	__u32 free_entries = r->cached_cons - r->cached_prod;
+
+	if (free_entries >= nb)
+		return free_entries;
+
+	/* Refresh the local tail pointer.
+	 * cached_cons is r->size bigger than the real consumer pointer so
+	 * that this addition can be avoided in the more frequently
+	 * executed code that computes free_entries in the beginning of
+	 * this function. Without this optimization it would have been
+	 * free_entries = r->cached_prod - r->cached_cons + r->size.
+	 */
+	r->cached_cons = __atomic_load_n(r->consumer, __ATOMIC_ACQUIRE);
+	r->cached_cons += r->size;
+
+	return r->cached_cons - r->cached_prod;
+}
+
+static inline __u32 xsk_cons_nb_avail(struct xsk_ring_cons *r, __u32 nb)
+{
+	__u32 entries = r->cached_prod - r->cached_cons;
+
+	if (entries == 0) {
+		r->cached_prod = __atomic_load_n(r->producer, __ATOMIC_ACQUIRE);
+		entries = r->cached_prod - r->cached_cons;
+	}
+
+	return (entries > nb) ? nb : entries;
+}
+
+static inline __u32 xsk_ring_prod__reserve(struct xsk_ring_prod *prod, __u32 nb, __u32 *idx)
+{
+	if (xsk_prod_nb_free(prod, nb) < nb)
+		return 0;
+
+	*idx = prod->cached_prod;
+	prod->cached_prod += nb;
+
+	return nb;
+}
+
+static inline void xsk_ring_prod__submit(struct xsk_ring_prod *prod, __u32 nb)
+{
+	/* Make sure everything has been written to the ring before indicating
+	 * this to the kernel by writing the producer pointer.
+	 */
+	__atomic_store_n(prod->producer, *prod->producer + nb, __ATOMIC_RELEASE);
+}
+
+static inline void xsk_ring_prod__cancel(struct xsk_ring_prod *prod, __u32 nb)
+{
+	prod->cached_prod -= nb;
+}
+
+static inline __u32 xsk_ring_cons__peek(struct xsk_ring_cons *cons, __u32 nb, __u32 *idx)
+{
+	__u32 entries = xsk_cons_nb_avail(cons, nb);
+
+	if (entries > 0) {
+		*idx = cons->cached_cons;
+		cons->cached_cons += entries;
+	}
+
+	return entries;
+}
+
+static inline void xsk_ring_cons__cancel(struct xsk_ring_cons *cons, __u32 nb)
+{
+	cons->cached_cons -= nb;
+}
+
+static inline void xsk_ring_cons__release(struct xsk_ring_cons *cons, __u32 nb)
+{
+	/* Make sure data has been read before indicating we are done
+	 * with the entries by updating the consumer pointer.
+	 */
+	__atomic_store_n(cons->consumer, *cons->consumer + nb, __ATOMIC_RELEASE);
+}
+
+static inline void *xsk_umem__get_data(void *umem_area, __u64 addr)
+{
+	return &((char *)umem_area)[addr];
+}
+
+static inline __u64 xsk_umem__extract_addr(__u64 addr)
+{
+	return addr & XSK_UNALIGNED_BUF_ADDR_MASK;
+}
+
+static inline __u64 xsk_umem__extract_offset(__u64 addr)
+{
+	return addr >> XSK_UNALIGNED_BUF_OFFSET_SHIFT;
+}
+
+static inline __u64 xsk_umem__add_offset_to_addr(__u64 addr)
+{
+	return xsk_umem__extract_addr(addr) + xsk_umem__extract_offset(addr);
+}
+
+int xsk_umem__fd(const struct xsk_umem *umem);
+int xsk_socket__fd(const struct xsk_socket *xsk);
+
+#define XSK_RING_CONS__DEFAULT_NUM_DESCS      2048
+#define XSK_RING_PROD__DEFAULT_NUM_DESCS      2048
+#define XSK_UMEM__DEFAULT_FRAME_SHIFT    12 /* 4096 bytes */
+#define XSK_UMEM__DEFAULT_FRAME_SIZE     (1 << XSK_UMEM__DEFAULT_FRAME_SHIFT)
+#define XSK_UMEM__DEFAULT_FRAME_HEADROOM 0
+#define XSK_UMEM__DEFAULT_FLAGS 0
+
+struct xsk_umem_config {
+	__u32 fill_size;
+	__u32 comp_size;
+	__u32 frame_size;
+	__u32 frame_headroom;
+	__u32 flags;
+	__u32 tx_metadata_len;
+};
+
+int xsk_attach_xdp_program(struct bpf_program *prog, int ifindex, u32 xdp_flags);
+void xsk_detach_xdp_program(int ifindex, u32 xdp_flags);
+int xsk_update_xskmap(struct bpf_map *map, struct xsk_socket *xsk, u32 index);
+void xsk_clear_xskmap(struct bpf_map *map);
+bool xsk_is_in_mode(u32 ifindex, int mode);
+
+struct xsk_socket_config {
+	__u32 rx_size;
+	__u32 tx_size;
+	__u16 bind_flags;
+};
+
+/* Set config to NULL to get the default configuration. */
+int xsk_umem__create(struct xsk_umem **umem,
+		     void *umem_area, __u64 size,
+		     struct xsk_ring_prod *fill,
+		     struct xsk_ring_cons *comp,
+		     const struct xsk_umem_config *config);
+int xsk_socket__create(struct xsk_socket **xsk,
+		       int ifindex, __u32 queue_id,
+		       struct xsk_umem *umem,
+		       struct xsk_ring_cons *rx,
+		       struct xsk_ring_prod *tx,
+		       const struct xsk_socket_config *config);
+int xsk_socket__create_shared(struct xsk_socket **xsk_ptr,
+			      int ifindex,
+			      __u32 queue_id, struct xsk_umem *umem,
+			      struct xsk_ring_cons *rx,
+			      struct xsk_ring_prod *tx,
+			      struct xsk_ring_prod *fill,
+			      struct xsk_ring_cons *comp,
+			      const struct xsk_socket_config *config);
+
+/* Returns 0 for success and -EBUSY if the umem is still in use. */
+int xsk_umem__delete(struct xsk_umem *umem);
+void xsk_socket__delete(struct xsk_socket *xsk);
+
+int xsk_set_mtu(int ifindex, int mtu);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __XSK_H */
diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh
new file mode 100755
index 000000000000..47c7b8064f38
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk_prereqs.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright(c) 2020 Intel Corporation.
+
+ksft_pass=0
+ksft_fail=1
+ksft_xfail=2
+ksft_xpass=3
+ksft_skip=4
+
+XSKOBJ=xskxceiver
+
+validate_root_exec()
+{
+	msg="skip all tests:"
+	if [ $UID != 0 ]; then
+		echo $msg must be run as root >&2
+		test_exit $ksft_fail
+	else
+		return $ksft_pass
+	fi
+}
+
+validate_veth_support()
+{
+	msg="skip all tests:"
+	if [ $(ip link add $1 type veth 2>/dev/null; echo $?;) != 0 ]; then
+		echo $msg veth kernel support not available >&2
+		test_exit $ksft_skip
+	else
+		ip link del $1
+		return $ksft_pass
+	fi
+}
+
+test_status()
+{
+	statusval=$1
+	if [ $statusval -eq $ksft_fail ]; then
+		echo "$2: [ FAIL ]"
+	elif [ $statusval -eq $ksft_skip ]; then
+		echo "$2: [ SKIPPED ]"
+	elif [ $statusval -eq $ksft_pass ]; then
+		echo "$2: [ PASS ]"
+	fi
+}
+
+test_exit()
+{
+	if [ $1 -ne 0 ]; then
+		test_status $1 $(basename $0)
+	fi
+	exit 1
+}
+
+cleanup_iface()
+{
+	ip link set $1 mtu $2
+	ip link set $1 xdp off
+	ip link set $1 xdpgeneric off
+}
+
+clear_configs()
+{
+	[ $(ip link show $1 &>/dev/null; echo $?;) == 0 ] &&
+		{ ip link del $1; }
+}
+
+cleanup_exit()
+{
+	clear_configs $1 $2
+}
+
+validate_ip_utility()
+{
+	[ ! $(type -P ip) ] && { echo "'ip' not found. Skipping tests."; test_exit $ksft_skip; }
+}
+
+exec_xskxceiver()
+{
+        if [[ $busy_poll -eq 1 ]]; then
+	        ARGS+="-b "
+	fi
+
+	./${XSKOBJ} -i ${VETH0} -i ${VETH1} ${ARGS}
+	retval=$?
+
+	if [[ $list -ne 1 ]]; then
+	    test_status $retval "${TEST_NAME}"
+	    statusList+=($retval)
+	    nameList+=(${TEST_NAME})
+	fi
+}
diff --git a/tools/testing/selftests/bpf/xsk_xdp_common.h b/tools/testing/selftests/bpf/xsk_xdp_common.h
new file mode 100644
index 000000000000..45810ff552da
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk_xdp_common.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef XSK_XDP_COMMON_H_
+#define XSK_XDP_COMMON_H_
+
+#define MAX_SOCKETS 2
+#define PKT_HDR_ALIGN (sizeof(struct ethhdr) + 2) /* Just to align the data in the packet */
+
+struct xdp_info {
+	__u64 count;
+} __attribute__((aligned(32)));
+
+#endif /* XSK_XDP_COMMON_H_ */
diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
new file mode 100644
index 000000000000..05b3cebc5ca9
--- /dev/null
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2020 Intel Corporation. */
+
+/*
+ * Some functions in this program are taken from
+ * Linux kernel samples/bpf/xdpsock* and modified
+ * for use.
+ *
+ * See test_xsk.sh for detailed information on test topology
+ * and prerequisite network setup.
+ *
+ * This test program contains two threads, each thread is single socket with
+ * a unique UMEM. It validates in-order packet delivery and packet content
+ * by sending packets to each other.
+ *
+ * Tests Information:
+ * ------------------
+ * These selftests test AF_XDP SKB and Native/DRV modes using veth
+ * Virtual Ethernet interfaces.
+ *
+ * For each mode, the following tests are run:
+ *    a. nopoll - soft-irq processing in run-to-completion mode
+ *    b. poll - using poll() syscall
+ *    c. Socket Teardown
+ *       Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy
+ *       both sockets, then repeat multiple times. Only nopoll mode is used
+ *    d. Bi-directional sockets
+ *       Configure sockets as bi-directional tx/rx sockets, sets up fill and
+ *       completion rings on each socket, tx/rx in both directions. Only nopoll
+ *       mode is used
+ *    e. Statistics
+ *       Trigger some error conditions and ensure that the appropriate statistics
+ *       are incremented. Within this test, the following statistics are tested:
+ *       i.   rx dropped
+ *            Increase the UMEM frame headroom to a value which results in
+ *            insufficient space in the rx buffer for both the packet and the headroom.
+ *       ii.  tx invalid
+ *            Set the 'len' field of tx descriptors to an invalid value (umem frame
+ *            size + 1).
+ *       iii. rx ring full
+ *            Reduce the size of the RX ring to a fraction of the fill ring size.
+ *       iv.  fill queue empty
+ *            Do not populate the fill queue and then try to receive pkts.
+ *    f. bpf_link resource persistence
+ *       Configure sockets at indexes 0 and 1, run a traffic on queue ids 0,
+ *       then remove xsk sockets from queue 0 on both veth interfaces and
+ *       finally run a traffic on queues ids 1
+ *    g. unaligned mode
+ *    h. tests for invalid and corner case Tx descriptors so that the correct ones
+ *       are discarded and let through, respectively.
+ *    i. 2K frame size tests
+ *    j. If multi-buffer is supported, send 9k packets divided into 3 frames
+ *    k. If multi-buffer and huge pages are supported, send 9k packets in a single frame
+ *       using unaligned mode
+ *    l. If multi-buffer is supported, try various nasty combinations of descriptors to
+ *       check if they pass the validation or not
+ *
+ * Flow:
+ * -----
+ * - Single process spawns two threads: Tx and Rx
+ * - Each of these two threads attach to a veth interface
+ * - Each thread creates one AF_XDP socket connected to a unique umem for each
+ *   veth interface
+ * - Tx thread Transmits a number of packets from veth<xxxx> to veth<yyyy>
+ * - Rx thread verifies if all packets were received and delivered in-order,
+ *   and have the right content
+ *
+ * Enable/disable packet dump mode:
+ * --------------------------
+ * To enable L2 - L4 headers and payload dump of each packet on STDOUT, add
+ * parameter -D to params array in test_xsk.sh, i.e. params=("-S" "-D")
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/if_link.h>
+#include <linux/if_ether.h>
+#include <linux/mman.h>
+#include <linux/netdev.h>
+#include <linux/ethtool.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <libgen.h>
+#include <stddef.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include "prog_tests/test_xsk.h"
+#include "xsk_xdp_progs.skel.h"
+#include "xsk.h"
+#include "xskxceiver.h"
+#include <bpf/bpf.h>
+#include <linux/filter.h>
+#include "kselftest.h"
+#include "xsk_xdp_common.h"
+
+#include <network_helpers.h>
+
+static bool opt_print_tests;
+static enum test_mode opt_mode = TEST_MODE_ALL;
+static u32 opt_run_test = RUN_ALL_TESTS;
+
+void test__fail(void) { /* for network_helpers.c */ }
+
+static void __exit_with_error(int error, const char *file, const char *func, int line)
+{
+	ksft_test_result_fail("[%s:%s:%i]: ERROR: %d/\"%s\"\n", file, func, line,
+			      error, strerror(error));
+	ksft_exit_xfail();
+}
+
+#define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__)
+
+static bool ifobj_zc_avail(struct ifobject *ifobject)
+{
+	size_t umem_sz = DEFAULT_UMEM_BUFFERS * XSK_UMEM__DEFAULT_FRAME_SIZE;
+	int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+	struct xsk_socket_info *xsk;
+	struct xsk_umem_info *umem;
+	bool zc_avail = false;
+	void *bufs;
+	int ret;
+
+	bufs = mmap(NULL, umem_sz, PROT_READ | PROT_WRITE, mmap_flags, -1, 0);
+	if (bufs == MAP_FAILED)
+		exit_with_error(errno);
+
+	umem = calloc(1, sizeof(struct xsk_umem_info));
+	if (!umem) {
+		munmap(bufs, umem_sz);
+		exit_with_error(ENOMEM);
+	}
+	umem->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
+	ret = xsk_configure_umem(ifobject, umem, bufs, umem_sz);
+	if (ret)
+		exit_with_error(-ret);
+
+	xsk = calloc(1, sizeof(struct xsk_socket_info));
+	if (!xsk)
+		goto out;
+	ifobject->bind_flags = XDP_USE_NEED_WAKEUP | XDP_ZEROCOPY;
+	ifobject->rx_on = true;
+	xsk->rxqsize = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+	ret = xsk_configure_socket(xsk, umem, ifobject, false);
+	if (!ret)
+		zc_avail = true;
+
+	xsk_socket__delete(xsk->xsk);
+	free(xsk);
+out:
+	munmap(umem->buffer, umem_sz);
+	xsk_umem__delete(umem->umem);
+	free(umem);
+	return zc_avail;
+}
+
+static struct option long_options[] = {
+	{"interface", required_argument, 0, 'i'},
+	{"busy-poll", no_argument, 0, 'b'},
+	{"verbose", no_argument, 0, 'v'},
+	{"mode", required_argument, 0, 'm'},
+	{"list", no_argument, 0, 'l'},
+	{"test", required_argument, 0, 't'},
+	{"help", no_argument, 0, 'h'},
+	{0, 0, 0, 0}
+};
+
+static void print_usage(char **argv)
+{
+	const char *str =
+		"  Usage: xskxceiver [OPTIONS]\n"
+		"  Options:\n"
+		"  -i, --interface      Use interface\n"
+		"  -v, --verbose        Verbose output\n"
+		"  -b, --busy-poll      Enable busy poll\n"
+		"  -m, --mode           Run only mode skb, drv, or zc\n"
+		"  -l, --list           List all available tests\n"
+		"  -t, --test           Run a specific test. Enter number from -l option.\n"
+		"  -h, --help           Display this help and exit\n";
+
+	ksft_print_msg(str, basename(argv[0]));
+	ksft_exit_xfail();
+}
+
+static bool validate_interface(struct ifobject *ifobj)
+{
+	if (!strcmp(ifobj->ifname, ""))
+		return false;
+	return true;
+}
+
+static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj_rx, int argc,
+			       char **argv)
+{
+	struct ifobject *ifobj;
+	u32 interface_nb = 0;
+	int option_index, c;
+
+	opterr = 0;
+
+	for (;;) {
+		c = getopt_long(argc, argv, "i:vbm:lt:", long_options, &option_index);
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 'i':
+			if (interface_nb == 0)
+				ifobj = ifobj_tx;
+			else if (interface_nb == 1)
+				ifobj = ifobj_rx;
+			else
+				break;
+
+			memcpy(ifobj->ifname, optarg,
+			       min_t(size_t, MAX_INTERFACE_NAME_CHARS, strlen(optarg)));
+
+			ifobj->ifindex = if_nametoindex(ifobj->ifname);
+			if (!ifobj->ifindex)
+				exit_with_error(errno);
+
+			interface_nb++;
+			break;
+		case 'v':
+			opt_verbose = true;
+			break;
+		case 'b':
+			ifobj_tx->busy_poll = true;
+			ifobj_rx->busy_poll = true;
+			break;
+		case 'm':
+			if (!strncmp("skb", optarg, strlen(optarg)))
+				opt_mode = TEST_MODE_SKB;
+			else if (!strncmp("drv", optarg, strlen(optarg)))
+				opt_mode = TEST_MODE_DRV;
+			else if (!strncmp("zc", optarg, strlen(optarg)))
+				opt_mode = TEST_MODE_ZC;
+			else
+				print_usage(argv);
+			break;
+		case 'l':
+			opt_print_tests = true;
+			break;
+		case 't':
+			errno = 0;
+			opt_run_test = strtol(optarg, NULL, 0);
+			if (errno)
+				print_usage(argv);
+			break;
+		case 'h':
+		default:
+			print_usage(argv);
+		}
+	}
+}
+
+static void xsk_unload_xdp_programs(struct ifobject *ifobj)
+{
+	xsk_xdp_progs__destroy(ifobj->xdp_progs);
+}
+
+static void run_pkt_test(struct test_spec *test)
+{
+	int ret;
+
+	ret = test->test_func(test);
+
+	switch (ret) {
+	case TEST_PASS:
+		ksft_test_result_pass("PASS: %s %s%s\n", mode_string(test), busy_poll_string(test),
+				      test->name);
+		break;
+	case TEST_SKIP:
+		ksft_test_result_skip("SKIP: %s %s%s\n", mode_string(test), busy_poll_string(test),
+				      test->name);
+		break;
+	case TEST_FAILURE:
+		ksft_test_result_fail("FAIL: %s %s%s\n", mode_string(test), busy_poll_string(test),
+				      test->name);
+		break;
+	default:
+		ksft_test_result_fail("FAIL: %s %s%s -- Unexpected returned value (%d)\n",
+				      mode_string(test), busy_poll_string(test), test->name, ret);
+	}
+
+	pkt_stream_restore_default(test);
+}
+
+static bool is_xdp_supported(int ifindex)
+{
+	int flags = XDP_FLAGS_DRV_MODE;
+
+	LIBBPF_OPTS(bpf_link_create_opts, opts, .flags = flags);
+	struct bpf_insn insns[2] = {
+		BPF_MOV64_IMM(BPF_REG_0, XDP_PASS),
+		BPF_EXIT_INSN()
+	};
+	int prog_fd, insn_cnt = ARRAY_SIZE(insns);
+	int err;
+
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "GPL", insns, insn_cnt, NULL);
+	if (prog_fd < 0)
+		return false;
+
+	err = bpf_xdp_attach(ifindex, prog_fd, flags, NULL);
+	if (err) {
+		close(prog_fd);
+		return false;
+	}
+
+	bpf_xdp_detach(ifindex, flags, NULL);
+	close(prog_fd);
+
+	return true;
+}
+
+static void print_tests(void)
+{
+	u32 i;
+
+	printf("Tests:\n");
+	for (i = 0; i < ARRAY_SIZE(tests); i++)
+		printf("%u: %s\n", i, tests[i].name);
+	for (i = ARRAY_SIZE(tests); i < ARRAY_SIZE(tests) + ARRAY_SIZE(ci_skip_tests); i++)
+		printf("%u: %s\n", i, ci_skip_tests[i - ARRAY_SIZE(tests)].name);
+}
+
+int main(int argc, char **argv)
+{
+	const size_t total_tests = ARRAY_SIZE(tests) + ARRAY_SIZE(ci_skip_tests);
+	struct pkt_stream *rx_pkt_stream_default;
+	struct pkt_stream *tx_pkt_stream_default;
+	struct ifobject *ifobj_tx, *ifobj_rx;
+	u32 i, j, failed_tests = 0, nb_tests;
+	int modes = TEST_MODE_SKB + 1;
+	struct test_spec test;
+	bool shared_netdev;
+	int ret;
+
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	ifobj_tx = ifobject_create();
+	if (!ifobj_tx)
+		exit_with_error(ENOMEM);
+	ifobj_rx = ifobject_create();
+	if (!ifobj_rx)
+		exit_with_error(ENOMEM);
+
+	setlocale(LC_ALL, "");
+
+	parse_command_line(ifobj_tx, ifobj_rx, argc, argv);
+
+	if (opt_print_tests) {
+		print_tests();
+		ksft_exit_xpass();
+	}
+	if (opt_run_test != RUN_ALL_TESTS && opt_run_test >= total_tests) {
+		ksft_print_msg("Error: test %u does not exist.\n", opt_run_test);
+		ksft_exit_xfail();
+	}
+
+	shared_netdev = (ifobj_tx->ifindex == ifobj_rx->ifindex);
+	ifobj_tx->shared_umem = shared_netdev;
+	ifobj_rx->shared_umem = shared_netdev;
+
+	if (!validate_interface(ifobj_tx) || !validate_interface(ifobj_rx))
+		print_usage(argv);
+
+	if (is_xdp_supported(ifobj_tx->ifindex)) {
+		modes++;
+		if (ifobj_zc_avail(ifobj_tx))
+			modes++;
+	}
+
+	ret = get_hw_ring_size(ifobj_tx->ifname, &ifobj_tx->ring);
+	if (!ret) {
+		ifobj_tx->hw_ring_size_supp = true;
+		ifobj_tx->set_ring.default_tx = ifobj_tx->ring.tx_pending;
+		ifobj_tx->set_ring.default_rx = ifobj_tx->ring.rx_pending;
+	}
+
+	if (init_iface(ifobj_rx, worker_testapp_validate_rx) ||
+	    init_iface(ifobj_tx, worker_testapp_validate_tx)) {
+		ksft_print_msg("Error : can't initialize interfaces\n");
+		ksft_exit_xfail();
+	}
+
+	test_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
+	tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, MIN_PKT_SIZE);
+	if (!tx_pkt_stream_default || !rx_pkt_stream_default)
+		exit_with_error(ENOMEM);
+	test.tx_pkt_stream_default = tx_pkt_stream_default;
+	test.rx_pkt_stream_default = rx_pkt_stream_default;
+
+	if (opt_run_test == RUN_ALL_TESTS)
+		nb_tests = total_tests;
+	else
+		nb_tests = 1;
+	if (opt_mode == TEST_MODE_ALL) {
+		ksft_set_plan(modes * nb_tests);
+	} else {
+		if (opt_mode == TEST_MODE_DRV && modes <= TEST_MODE_DRV) {
+			ksft_print_msg("Error: XDP_DRV mode not supported.\n");
+			ksft_exit_xfail();
+		}
+		if (opt_mode == TEST_MODE_ZC && modes <= TEST_MODE_ZC) {
+			ksft_print_msg("Error: zero-copy mode not supported.\n");
+			ksft_exit_xfail();
+		}
+
+		ksft_set_plan(nb_tests);
+	}
+
+	for (i = 0; i < modes; i++) {
+		if (opt_mode != TEST_MODE_ALL && i != opt_mode)
+			continue;
+
+		for (j = 0; j < total_tests; j++) {
+			if (opt_run_test != RUN_ALL_TESTS && j != opt_run_test)
+				continue;
+
+			if (j < ARRAY_SIZE(tests))
+				test_init(&test, ifobj_tx, ifobj_rx, i, &tests[j]);
+			else
+				test_init(&test, ifobj_tx, ifobj_rx, i,
+					  &ci_skip_tests[j - ARRAY_SIZE(tests)]);
+			run_pkt_test(&test);
+			usleep(USLEEP_MAX);
+
+			if (test.fail)
+				failed_tests++;
+		}
+	}
+
+	if (ifobj_tx->hw_ring_size_supp)
+		hw_ring_size_reset(ifobj_tx);
+
+	pkt_stream_delete(tx_pkt_stream_default);
+	pkt_stream_delete(rx_pkt_stream_default);
+	xsk_unload_xdp_programs(ifobj_tx);
+	xsk_unload_xdp_programs(ifobj_rx);
+	ifobject_delete(ifobj_tx);
+	ifobject_delete(ifobj_rx);
+
+	if (failed_tests)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h
new file mode 100644
index 000000000000..3ca518df23ad
--- /dev/null
+++ b/tools/testing/selftests/bpf/xskxceiver.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright(c) 2020 Intel Corporation.
+ */
+
+#ifndef XSKXCEIVER_H_
+#define XSKXCEIVER_H_
+
+#include <limits.h>
+
+#include "xsk_xdp_progs.skel.h"
+#include "xsk_xdp_common.h"
+
+#ifndef SOL_XDP
+#define SOL_XDP 283
+#endif
+
+#ifndef AF_XDP
+#define AF_XDP 44
+#endif
+
+#ifndef PF_XDP
+#define PF_XDP AF_XDP
+#endif
+
+#define MAX_TEARDOWN_ITER 10
+#define MAX_ETH_JUMBO_SIZE 9000
+#define SOCK_RECONF_CTR 10
+#define RX_FULL_RXQSIZE 32
+#define UMEM_HEADROOM_TEST_SIZE 128
+#define XSK_UMEM__INVALID_FRAME_SIZE (MAX_ETH_JUMBO_SIZE + 1)
+#define RUN_ALL_TESTS UINT_MAX
+#define NUM_MAC_ADDRESSES 4
+
+#endif				/* XSKXCEIVER_H_ */
diff --git a/tools/testing/selftests/breakpoints/.gitignore b/tools/testing/selftests/breakpoints/.gitignore
new file mode 100644
index 000000000000..def2e97dab9a
--- /dev/null
+++ b/tools/testing/selftests/breakpoints/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+breakpoint_test
+step_after_suspend_test
diff --git a/tools/testing/selftests/breakpoints/Makefile b/tools/testing/selftests/breakpoints/Makefile
index 182235640209..9ec2c78de8ca 100644
--- a/tools/testing/selftests/breakpoints/Makefile
+++ b/tools/testing/selftests/breakpoints/Makefile
@@ -1,24 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
 # Taken from perf makefile
 uname_M := $(shell uname -m 2>/dev/null || echo not)
-ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
-ifeq ($(ARCH),i386)
-        ARCH := x86
-endif
-ifeq ($(ARCH),x86_64)
-	ARCH := x86
-endif
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
 
+TEST_GEN_PROGS := step_after_suspend_test
 
-all:
 ifeq ($(ARCH),x86)
-	gcc breakpoint_test.c -o breakpoint_test
-else
-	echo "Not an x86 target, can't build breakpoints selftests"
+TEST_GEN_PROGS += breakpoint_test
+endif
+ifneq (,$(filter $(ARCH),aarch64 arm64))
+TEST_GEN_PROGS += breakpoint_test_arm64
 endif
-
-TEST_PROGS := breakpoint_test
 
 include ../lib.mk
 
-clean:
-	rm -fr breakpoint_test
diff --git a/tools/testing/selftests/breakpoints/breakpoint_test.c b/tools/testing/selftests/breakpoints/breakpoint_test.c
index 120895ab5505..1159d81890c2 100644
--- a/tools/testing/selftests/breakpoints/breakpoint_test.c
+++ b/tools/testing/selftests/breakpoints/breakpoint_test.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (C) 2011 Red Hat, Inc., Frederic Weisbecker <fweisbec@redhat.com>
  *
- * Licensed under the terms of the GNU GPL License version 2
- *
  * Selftests for breakpoints (and more generally the do_debug() path) in x86.
  */
 
@@ -16,9 +15,13 @@
 #include <signal.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <errno.h>
+#include <string.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
+#define COUNT_ISN_BPS	4
+#define COUNT_WPS	4
 
 /* Breakpoint access modes */
 enum {
@@ -42,10 +45,9 @@ static void set_breakpoint_addr(void *addr, int n)
 
 	ret = ptrace(PTRACE_POKEUSER, child_pid,
 		     offsetof(struct user, u_debugreg[n]), addr);
-	if (ret) {
-		perror("Can't set breakpoint addr\n");
-		ksft_exit_fail();
-	}
+	if (ret)
+		ksft_exit_fail_msg("Can't set breakpoint addr: %s\n",
+			strerror(errno));
 }
 
 static void toggle_breakpoint(int n, int type, int len,
@@ -106,8 +108,8 @@ static void toggle_breakpoint(int n, int type, int len,
 	ret = ptrace(PTRACE_POKEUSER, child_pid,
 		     offsetof(struct user, u_debugreg[7]), dr7);
 	if (ret) {
-		perror("Can't set dr7");
-		ksft_exit_fail();
+		ksft_print_msg("Can't set dr7: %s\n", strerror(errno));
+		exit(-1);
 	}
 }
 
@@ -206,7 +208,7 @@ static void trigger_tests(void)
 
 	ret = ptrace(PTRACE_TRACEME, 0, NULL, 0);
 	if (ret) {
-		perror("Can't be traced?\n");
+		ksft_print_msg("Can't be traced? %s\n", strerror(errno));
 		return;
 	}
 
@@ -219,7 +221,7 @@ static void trigger_tests(void)
 			if (!local && !global)
 				continue;
 
-			for (i = 0; i < 4; i++) {
+			for (i = 0; i < COUNT_ISN_BPS; i++) {
 				dummy_funcs[i]();
 				check_trapped();
 			}
@@ -261,40 +263,41 @@ static void trigger_tests(void)
 
 static void check_success(const char *msg)
 {
-	const char *msg2;
 	int child_nr_tests;
 	int status;
+	int ret;
 
 	/* Wait for the child to SIGTRAP */
 	wait(&status);
 
-	msg2 = "Failed";
+	ret = 0;
 
 	if (WSTOPSIG(status) == SIGTRAP) {
 		child_nr_tests = ptrace(PTRACE_PEEKDATA, child_pid,
 					&nr_tests, 0);
 		if (child_nr_tests == nr_tests)
-			msg2 = "Ok";
-		if (ptrace(PTRACE_POKEDATA, child_pid, &trapped, 1)) {
-			perror("Can't poke\n");
-			ksft_exit_fail();
-		}
+			ret = 1;
+		if (ptrace(PTRACE_POKEDATA, child_pid, &trapped, 1))
+			ksft_exit_fail_msg("Can't poke: %s\n", strerror(errno));
 	}
 
 	nr_tests++;
 
-	printf("%s [%s]\n", msg, msg2);
+	if (ret)
+		ksft_test_result_pass("%s", msg);
+	else
+		ksft_test_result_fail("%s", msg);
 }
 
 static void launch_instruction_breakpoints(char *buf, int local, int global)
 {
 	int i;
 
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < COUNT_ISN_BPS; i++) {
 		set_breakpoint_addr(dummy_funcs[i], i);
 		toggle_breakpoint(i, BP_X, 1, local, global, 1);
 		ptrace(PTRACE_CONT, child_pid, NULL, 0);
-		sprintf(buf, "Test breakpoint %d with local: %d global: %d",
+		sprintf(buf, "Test breakpoint %d with local: %d global: %d\n",
 			i, local, global);
 		check_success(buf);
 		toggle_breakpoint(i, BP_X, 1, local, global, 0);
@@ -312,12 +315,13 @@ static void launch_watchpoints(char *buf, int mode, int len,
 	else
 		mode_str = "read";
 
-	for (i = 0; i < 4; i++) {
+	for (i = 0; i < COUNT_WPS; i++) {
 		set_breakpoint_addr(&dummy_var[i], i);
 		toggle_breakpoint(i, mode, len, local, global, 1);
 		ptrace(PTRACE_CONT, child_pid, NULL, 0);
-		sprintf(buf, "Test %s watchpoint %d with len: %d local: "
-			"%d global: %d", mode_str, i, len, local, global);
+		sprintf(buf,
+			"Test %s watchpoint %d with len: %d local: %d global: %d\n",
+			mode_str, i, len, local, global);
 		check_success(buf);
 		toggle_breakpoint(i, mode, len, local, global, 0);
 	}
@@ -327,8 +331,15 @@ static void launch_watchpoints(char *buf, int mode, int len,
 static void launch_tests(void)
 {
 	char buf[1024];
+	unsigned int tests = 0;
 	int len, local, global, i;
 
+	tests += 3 * COUNT_ISN_BPS;
+	tests += sizeof(long) / 2 * 3 * COUNT_WPS;
+	tests += sizeof(long) / 2 * 3 * COUNT_WPS;
+	tests += 2;
+	ksft_set_plan(tests);
+
 	/* Instruction breakpoints */
 	for (local = 0; local < 2; local++) {
 		for (global = 0; global < 2; global++) {
@@ -364,11 +375,11 @@ static void launch_tests(void)
 
 	/* Icebp traps */
 	ptrace(PTRACE_CONT, child_pid, NULL, 0);
-	check_success("Test icebp");
+	check_success("Test icebp\n");
 
 	/* Int 3 traps */
 	ptrace(PTRACE_CONT, child_pid, NULL, 0);
-	check_success("Test int 3 trap");
+	check_success("Test int 3 trap\n");
 
 	ptrace(PTRACE_CONT, child_pid, NULL, 0);
 }
@@ -378,10 +389,12 @@ int main(int argc, char **argv)
 	pid_t pid;
 	int ret;
 
+	ksft_print_header();
+
 	pid = fork();
 	if (!pid) {
 		trigger_tests();
-		return 0;
+		exit(0);
 	}
 
 	child_pid = pid;
@@ -392,5 +405,5 @@ int main(int argc, char **argv)
 
 	wait(NULL);
 
-	return ksft_exit_pass();
+	ksft_exit_pass();
 }
diff --git a/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
new file mode 100644
index 000000000000..5fc0f37f3fd4
--- /dev/null
+++ b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
@@ -0,0 +1,250 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2016 Google, Inc.
+ *
+ * Original Code by Pavel Labath <labath@google.com>
+ *
+ * Code modified by Pratyush Anand <panand@redhat.com>
+ * for testing different byte select for each access size.
+ */
+
+#define _GNU_SOURCE
+
+#include <asm/ptrace.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/ptrace.h>
+#include <sys/param.h>
+#include <sys/uio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <elf.h>
+#include <errno.h>
+#include <signal.h>
+
+#include "kselftest.h"
+
+static volatile uint8_t var[96] __attribute__((__aligned__(32)));
+
+static void child(int size, int wr)
+{
+	volatile uint8_t *addr = &var[32 + wr];
+
+	if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0) {
+		ksft_print_msg(
+			"ptrace(PTRACE_TRACEME) failed: %s\n",
+			strerror(errno));
+		_exit(1);
+	}
+
+	if (raise(SIGSTOP) != 0) {
+		ksft_print_msg(
+			"raise(SIGSTOP) failed: %s\n", strerror(errno));
+		_exit(1);
+	}
+
+	if ((uintptr_t) addr % size) {
+		ksft_print_msg(
+			 "Wrong address write for the given size: %s\n",
+			 strerror(errno));
+		_exit(1);
+	}
+
+	switch (size) {
+	case 1:
+		*addr = 47;
+		break;
+	case 2:
+		*(uint16_t *)addr = 47;
+		break;
+	case 4:
+		*(uint32_t *)addr = 47;
+		break;
+	case 8:
+		*(uint64_t *)addr = 47;
+		break;
+	case 16:
+		__asm__ volatile ("stp x29, x30, %0" : "=m" (addr[0]));
+		break;
+	case 32:
+		__asm__ volatile ("stp q29, q30, %0" : "=m" (addr[0]));
+		break;
+	}
+
+	_exit(0);
+}
+
+static bool set_watchpoint(pid_t pid, int size, int wp)
+{
+	const volatile uint8_t *addr = &var[32 + wp];
+	const int offset = (uintptr_t)addr % 8;
+	const unsigned int byte_mask = ((1 << size) - 1) << offset;
+	const unsigned int type = 2; /* Write */
+	const unsigned int enable = 1;
+	const unsigned int control = byte_mask << 5 | type << 3 | enable;
+	struct user_hwdebug_state dreg_state;
+	struct iovec iov;
+
+	memset(&dreg_state, 0, sizeof(dreg_state));
+	dreg_state.dbg_regs[0].addr = (uintptr_t)(addr - offset);
+	dreg_state.dbg_regs[0].ctrl = control;
+	iov.iov_base = &dreg_state;
+	iov.iov_len = offsetof(struct user_hwdebug_state, dbg_regs) +
+				sizeof(dreg_state.dbg_regs[0]);
+	if (ptrace(PTRACE_SETREGSET, pid, NT_ARM_HW_WATCH, &iov) == 0)
+		return true;
+
+	if (errno == EIO)
+		ksft_print_msg(
+			"ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) not supported on this hardware: %s\n",
+			strerror(errno));
+
+	ksft_print_msg(
+		"ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) failed: %s\n",
+		strerror(errno));
+	return false;
+}
+
+static bool run_test(int wr_size, int wp_size, int wr, int wp)
+{
+	int status;
+	siginfo_t siginfo;
+	pid_t pid = fork();
+	pid_t wpid;
+
+	if (pid < 0) {
+		ksft_test_result_fail(
+			"fork() failed: %s\n", strerror(errno));
+		return false;
+	}
+	if (pid == 0)
+		child(wr_size, wr);
+
+	wpid = waitpid(pid, &status, __WALL);
+	if (wpid != pid) {
+		ksft_print_msg(
+			"waitpid() failed: %s\n", strerror(errno));
+		return false;
+	}
+	if (!WIFSTOPPED(status)) {
+		ksft_print_msg(
+			"child did not stop: %s\n", strerror(errno));
+		return false;
+	}
+	if (WSTOPSIG(status) != SIGSTOP) {
+		ksft_print_msg("child did not stop with SIGSTOP\n");
+		return false;
+	}
+
+	if (!set_watchpoint(pid, wp_size, wp))
+		return false;
+
+	if (ptrace(PTRACE_CONT, pid, NULL, NULL) < 0) {
+		ksft_print_msg(
+			"ptrace(PTRACE_CONT) failed: %s\n",
+			strerror(errno));
+		return false;
+	}
+
+	alarm(3);
+	wpid = waitpid(pid, &status, __WALL);
+	if (wpid != pid) {
+		ksft_print_msg(
+			"waitpid() failed: %s\n", strerror(errno));
+		return false;
+	}
+	alarm(0);
+	if (WIFEXITED(status)) {
+		ksft_print_msg("child exited prematurely\n");
+		return false;
+	}
+	if (!WIFSTOPPED(status)) {
+		ksft_print_msg("child did not stop\n");
+		return false;
+	}
+	if (WSTOPSIG(status) != SIGTRAP) {
+		ksft_print_msg("child did not stop with SIGTRAP\n");
+		return false;
+	}
+	if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo) != 0) {
+		ksft_print_msg(
+			"ptrace(PTRACE_GETSIGINFO): %s\n",
+			strerror(errno));
+		return false;
+	}
+	if (siginfo.si_code != TRAP_HWBKPT) {
+		ksft_print_msg(
+			"Unexpected si_code %d\n", siginfo.si_code);
+		return false;
+	}
+
+	kill(pid, SIGKILL);
+	wpid = waitpid(pid, &status, 0);
+	if (wpid != pid) {
+		ksft_print_msg(
+			"waitpid() failed: %s\n", strerror(errno));
+		return false;
+	}
+	return true;
+}
+
+static void sigalrm(int sig)
+{
+}
+
+int main(int argc, char **argv)
+{
+	int opt;
+	bool succeeded = true;
+	struct sigaction act;
+	int wr, wp, size;
+	bool result;
+
+	ksft_print_header();
+	ksft_set_plan(213);
+
+	act.sa_handler = sigalrm;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = 0;
+	sigaction(SIGALRM, &act, NULL);
+	for (size = 1; size <= 32; size = size*2) {
+		for (wr = 0; wr <= 32; wr = wr + size) {
+			for (wp = wr - size; wp <= wr + size; wp = wp + size) {
+				result = run_test(size, MIN(size, 8), wr, wp);
+				if ((result && wr == wp) ||
+				    (!result && wr != wp))
+					ksft_test_result_pass(
+						"Test size = %d write offset = %d watchpoint offset = %d\n",
+						size, wr, wp);
+				else {
+					ksft_test_result_fail(
+						"Test size = %d write offset = %d watchpoint offset = %d\n",
+						size, wr, wp);
+					succeeded = false;
+				}
+			}
+		}
+	}
+
+	for (size = 1; size <= 32; size = size*2) {
+		if (run_test(size, 8, -size, -8))
+			ksft_test_result_pass(
+				"Test size = %d write offset = %d watchpoint offset = -8\n",
+				size, -size);
+		else {
+			ksft_test_result_fail(
+				"Test size = %d write offset = %d watchpoint offset = -8\n",
+				size, -size);
+			succeeded = false;
+		}
+	}
+
+	if (succeeded)
+		ksft_exit_pass();
+	else
+		ksft_exit_fail();
+}
diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
new file mode 100644
index 000000000000..ca2aaab9e4ca
--- /dev/null
+++ b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2016 Google, Inc.
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ptrace.h>
+#include <sys/stat.h>
+#include <sys/timerfd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+
+void child(int cpu)
+{
+	cpu_set_t set;
+
+	CPU_ZERO(&set);
+	CPU_SET(cpu, &set);
+	if (sched_setaffinity(0, sizeof(set), &set) != 0) {
+		ksft_print_msg("sched_setaffinity() failed: %s\n",
+			strerror(errno));
+		_exit(1);
+	}
+
+	if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0) {
+		ksft_print_msg("ptrace(PTRACE_TRACEME) failed: %s\n",
+			strerror(errno));
+		_exit(1);
+	}
+
+	if (raise(SIGSTOP) != 0) {
+		ksft_print_msg("raise(SIGSTOP) failed: %s\n", strerror(errno));
+		_exit(1);
+	}
+
+	_exit(0);
+}
+
+int run_test(int cpu)
+{
+	int status;
+	pid_t pid = fork();
+	pid_t wpid;
+
+	if (pid < 0) {
+		ksft_print_msg("fork() failed: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (pid == 0)
+		child(cpu);
+
+	wpid = waitpid(pid, &status, __WALL);
+	if (wpid != pid) {
+		ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (!WIFSTOPPED(status)) {
+		ksft_print_msg("child did not stop: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (WSTOPSIG(status) != SIGSTOP) {
+		ksft_print_msg("child did not stop with SIGSTOP: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+
+	if (ptrace(PTRACE_SINGLESTEP, pid, NULL, NULL) < 0) {
+		if (errno == EIO) {
+			ksft_print_msg(
+				"ptrace(PTRACE_SINGLESTEP) not supported on this architecture: %s\n",
+				strerror(errno));
+			return KSFT_SKIP;
+		}
+		ksft_print_msg("ptrace(PTRACE_SINGLESTEP) failed: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+
+	wpid = waitpid(pid, &status, __WALL);
+	if (wpid != pid) {
+		ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (WIFEXITED(status)) {
+		ksft_print_msg("child did not single-step: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (!WIFSTOPPED(status)) {
+		ksft_print_msg("child did not stop: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (WSTOPSIG(status) != SIGTRAP) {
+		ksft_print_msg("child did not stop with SIGTRAP: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+
+	if (ptrace(PTRACE_CONT, pid, NULL, NULL) < 0) {
+		ksft_print_msg("ptrace(PTRACE_CONT) failed: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+
+	wpid = waitpid(pid, &status, __WALL);
+	if (wpid != pid) {
+		ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
+		return KSFT_FAIL;
+	}
+	if (!WIFEXITED(status)) {
+		ksft_print_msg("child did not exit after PTRACE_CONT: %s\n",
+			strerror(errno));
+		return KSFT_FAIL;
+	}
+
+	return KSFT_PASS;
+}
+
+/*
+ * Reads the suspend success count from sysfs.
+ * Returns the count on success or exits on failure.
+ */
+static int get_suspend_success_count_or_fail(void)
+{
+	FILE *fp;
+	int val;
+
+	fp = fopen("/sys/power/suspend_stats/success", "r");
+	if (!fp)
+		ksft_exit_fail_msg(
+			"Failed to open suspend_stats/success: %s\n",
+			strerror(errno));
+
+	if (fscanf(fp, "%d", &val) != 1) {
+		fclose(fp);
+		ksft_exit_fail_msg(
+			"Failed to read suspend success count\n");
+	}
+
+	fclose(fp);
+	return val;
+}
+
+void suspend(void)
+{
+	int timerfd;
+	int err;
+	int count_before;
+	int count_after;
+	struct itimerspec spec = {};
+
+	if (getuid() != 0)
+		ksft_exit_skip("Please run the test as root - Exiting.\n");
+
+	timerfd = timerfd_create(CLOCK_BOOTTIME_ALARM, 0);
+	if (timerfd < 0)
+		ksft_exit_fail_msg("timerfd_create() failed\n");
+
+	spec.it_value.tv_sec = 5;
+	err = timerfd_settime(timerfd, 0, &spec, NULL);
+	if (err < 0)
+		ksft_exit_fail_msg("timerfd_settime() failed\n");
+
+	count_before = get_suspend_success_count_or_fail();
+
+	system("(echo mem > /sys/power/state) 2> /dev/null");
+
+	count_after = get_suspend_success_count_or_fail();
+	if (count_after <= count_before)
+		ksft_exit_fail_msg("Failed to enter Suspend state\n");
+
+	close(timerfd);
+}
+
+int main(int argc, char **argv)
+{
+	int opt;
+	bool do_suspend = true;
+	bool succeeded = true;
+	unsigned int tests = 0;
+	cpu_set_t available_cpus;
+	int err;
+	int cpu;
+
+	ksft_print_header();
+
+	while ((opt = getopt(argc, argv, "n")) != -1) {
+		switch (opt) {
+		case 'n':
+			do_suspend = false;
+			break;
+		default:
+			printf("Usage: %s [-n]\n", argv[0]);
+			printf("        -n: do not trigger a suspend/resume cycle before the test\n");
+			return -1;
+		}
+	}
+
+	err = sched_getaffinity(0, sizeof(available_cpus), &available_cpus);
+	if (err < 0)
+		ksft_exit_fail_msg("sched_getaffinity() failed\n");
+
+	for (cpu = 0; cpu < CPU_SETSIZE; cpu++) {
+		if (!CPU_ISSET(cpu, &available_cpus))
+			continue;
+		tests++;
+	}
+
+	if (do_suspend)
+		suspend();
+
+	ksft_set_plan(tests);
+	for (cpu = 0; cpu < CPU_SETSIZE; cpu++) {
+		int test_success;
+
+		if (!CPU_ISSET(cpu, &available_cpus))
+			continue;
+
+		test_success = run_test(cpu);
+		switch (test_success) {
+		case KSFT_PASS:
+			ksft_test_result_pass("CPU %d\n", cpu);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("CPU %d\n", cpu);
+			break;
+		case KSFT_FAIL:
+			ksft_test_result_fail("CPU %d\n", cpu);
+			succeeded = false;
+			break;
+		}
+	}
+
+	if (succeeded)
+		ksft_exit_pass();
+	else
+		ksft_exit_fail();
+}
diff --git a/tools/testing/selftests/cachestat/.gitignore b/tools/testing/selftests/cachestat/.gitignore
new file mode 100644
index 000000000000..abbb13b6e96b
--- /dev/null
+++ b/tools/testing/selftests/cachestat/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+test_cachestat
+tmpshmcstat
diff --git a/tools/testing/selftests/cachestat/Makefile b/tools/testing/selftests/cachestat/Makefile
new file mode 100644
index 000000000000..778b54ebb036
--- /dev/null
+++ b/tools/testing/selftests/cachestat/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := test_cachestat
+
+CFLAGS += $(KHDR_INCLUDES)
+CFLAGS += -Wall
+LDLIBS += -lrt
+
+include ../lib.mk
diff --git a/tools/testing/selftests/cachestat/test_cachestat.c b/tools/testing/selftests/cachestat/test_cachestat.c
new file mode 100644
index 000000000000..542cd09cb443
--- /dev/null
+++ b/tools/testing/selftests/cachestat/test_cachestat.c
@@ -0,0 +1,365 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <linux/kernel.h>
+#include <linux/magic.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <sys/shm.h>
+#include <sys/syscall.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "kselftest.h"
+
+#define NR_TESTS	9
+
+static const char * const dev_files[] = {
+	"/dev/zero", "/dev/null", "/dev/urandom",
+	"/proc/version", "/proc"
+};
+
+void print_cachestat(struct cachestat *cs)
+{
+	ksft_print_msg(
+	"Using cachestat: Cached: %llu, Dirty: %llu, Writeback: %llu, Evicted: %llu, Recently Evicted: %llu\n",
+	cs->nr_cache, cs->nr_dirty, cs->nr_writeback,
+	cs->nr_evicted, cs->nr_recently_evicted);
+}
+
+enum file_type {
+	FILE_MMAP,
+	FILE_SHMEM
+};
+
+bool write_exactly(int fd, size_t filesize)
+{
+	int random_fd = open("/dev/urandom", O_RDONLY);
+	char *cursor, *data;
+	int remained;
+	bool ret;
+
+	if (random_fd < 0) {
+		ksft_print_msg("Unable to access urandom.\n");
+		ret = false;
+		goto out;
+	}
+
+	data = malloc(filesize);
+	if (!data) {
+		ksft_print_msg("Unable to allocate data.\n");
+		ret = false;
+		goto close_random_fd;
+	}
+
+	remained = filesize;
+	cursor = data;
+
+	while (remained) {
+		ssize_t read_len = read(random_fd, cursor, remained);
+
+		if (read_len <= 0) {
+			ksft_print_msg("Unable to read from urandom.\n");
+			ret = false;
+			goto out_free_data;
+		}
+
+		remained -= read_len;
+		cursor += read_len;
+	}
+
+	/* write random data to fd */
+	remained = filesize;
+	cursor = data;
+	while (remained) {
+		ssize_t write_len = write(fd, cursor, remained);
+
+		if (write_len <= 0) {
+			ksft_print_msg("Unable write random data to file.\n");
+			ret = false;
+			goto out_free_data;
+		}
+
+		remained -= write_len;
+		cursor += write_len;
+	}
+
+	ret = true;
+out_free_data:
+	free(data);
+close_random_fd:
+	close(random_fd);
+out:
+	return ret;
+}
+
+/*
+ * fsync() is implemented via noop_fsync() on tmpfs. This makes the fsync()
+ * test fail below, so we need to check for test file living on a tmpfs.
+ */
+static bool is_on_tmpfs(int fd)
+{
+	struct statfs statfs_buf;
+
+	if (fstatfs(fd, &statfs_buf))
+		return false;
+
+	return statfs_buf.f_type == TMPFS_MAGIC;
+}
+
+/*
+ * Open/create the file at filename, (optionally) write random data to it
+ * (exactly num_pages), then test the cachestat syscall on this file.
+ *
+ * If test_fsync == true, fsync the file, then check the number of dirty
+ * pages.
+ */
+static int test_cachestat(const char *filename, bool write_random, bool create,
+			  bool test_fsync, unsigned long num_pages,
+			  int open_flags, mode_t open_mode)
+{
+	size_t PS = sysconf(_SC_PAGESIZE);
+	int filesize = num_pages * PS;
+	int ret = KSFT_PASS;
+	long syscall_ret;
+	struct cachestat cs;
+	struct cachestat_range cs_range = { 0, filesize };
+
+	int fd = open(filename, open_flags, open_mode);
+
+	if (fd == -1) {
+		ksft_print_msg("Unable to create/open file.\n");
+		ret = KSFT_FAIL;
+		goto out;
+	} else {
+		ksft_print_msg("Create/open %s\n", filename);
+	}
+
+	if (write_random) {
+		if (!write_exactly(fd, filesize)) {
+			ksft_print_msg("Unable to access urandom.\n");
+			ret = KSFT_FAIL;
+			goto out1;
+		}
+	}
+
+	syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);
+
+	ksft_print_msg("Cachestat call returned %ld\n", syscall_ret);
+
+	if (syscall_ret) {
+		ksft_print_msg("Cachestat returned non-zero.\n");
+		ret = KSFT_FAIL;
+		goto out1;
+
+	} else {
+		print_cachestat(&cs);
+
+		if (write_random) {
+			if (cs.nr_cache + cs.nr_evicted != num_pages) {
+				ksft_print_msg(
+					"Total number of cached and evicted pages is off.\n");
+				ret = KSFT_FAIL;
+			}
+		}
+	}
+
+	if (test_fsync) {
+		if (is_on_tmpfs(fd)) {
+			ret = KSFT_SKIP;
+		} else if (fsync(fd)) {
+			ksft_print_msg("fsync fails.\n");
+			ret = KSFT_FAIL;
+		} else {
+			syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);
+
+			ksft_print_msg("Cachestat call (after fsync) returned %ld\n",
+				syscall_ret);
+
+			if (!syscall_ret) {
+				print_cachestat(&cs);
+
+				if (cs.nr_dirty) {
+					ret = KSFT_FAIL;
+					ksft_print_msg(
+						"Number of dirty should be zero after fsync.\n");
+				}
+			} else {
+				ksft_print_msg("Cachestat (after fsync) returned non-zero.\n");
+				ret = KSFT_FAIL;
+				goto out1;
+			}
+		}
+	}
+
+out1:
+	close(fd);
+
+	if (create)
+		remove(filename);
+out:
+	return ret;
+}
+const char *file_type_str(enum file_type type)
+{
+	switch (type) {
+	case FILE_SHMEM:
+		return "shmem";
+	case FILE_MMAP:
+		return "mmap";
+	default:
+		return "unknown";
+	}
+}
+
+
+bool run_cachestat_test(enum file_type type)
+{
+	size_t PS = sysconf(_SC_PAGESIZE);
+	size_t filesize = PS * 512 * 2; /* 2 2MB huge pages */
+	int syscall_ret;
+	size_t compute_len = PS * 512;
+	struct cachestat_range cs_range = { PS, compute_len };
+	char *filename = "tmpshmcstat", *map;
+	struct cachestat cs;
+	bool ret = true;
+	int fd;
+	unsigned long num_pages = compute_len / PS;
+	if (type == FILE_SHMEM)
+		fd = shm_open(filename, O_CREAT | O_RDWR, 0600);
+	else
+		fd = open(filename, O_RDWR | O_CREAT | O_TRUNC, 0666);
+
+	if (fd < 0) {
+		ksft_print_msg("Unable to create %s file.\n",
+				file_type_str(type));
+		ret = false;
+		goto out;
+	}
+
+	if (ftruncate(fd, filesize)) {
+		ksft_print_msg("Unable to truncate %s file.\n",file_type_str(type));
+		ret = false;
+		goto close_fd;
+	}
+	switch (type) {
+	case FILE_SHMEM:
+		if (!write_exactly(fd, filesize)) {
+			ksft_print_msg("Unable to write to file.\n");
+			ret = false;
+			goto close_fd;
+		}
+		break;
+	case FILE_MMAP:
+		map = mmap(NULL, filesize, PROT_READ | PROT_WRITE,
+				 MAP_SHARED, fd, 0);
+
+		if (map == MAP_FAILED) {
+			ksft_print_msg("mmap failed.\n");
+			ret = false;
+			goto close_fd;
+		}
+		for (int i = 0; i < filesize; i++)
+			map[i] = 'A';
+		break;
+	default:
+		ksft_print_msg("Unsupported file type.\n");
+		ret = false;
+		goto close_fd;
+	}
+	syscall_ret = syscall(__NR_cachestat, fd, &cs_range, &cs, 0);
+
+	if (syscall_ret) {
+		ksft_print_msg("Cachestat returned non-zero.\n");
+		ret = false;
+		goto close_fd;
+	} else {
+		print_cachestat(&cs);
+		if (cs.nr_cache + cs.nr_evicted != num_pages) {
+			ksft_print_msg(
+				"Total number of cached and evicted pages is off.\n");
+			ret = false;
+		}
+	}
+
+close_fd:
+	shm_unlink(filename);
+out:
+	return ret;
+}
+
+int main(void)
+{
+	int ret;
+
+	ksft_print_header();
+
+	ret = syscall(__NR_cachestat, -1, NULL, NULL, 0);
+	if (ret == -1 && errno == ENOSYS)
+		ksft_exit_skip("cachestat syscall not available\n");
+
+	ksft_set_plan(NR_TESTS);
+
+	if (ret == -1 && errno == EBADF) {
+		ksft_test_result_pass("bad file descriptor recognized\n");
+		ret = 0;
+	} else {
+		ksft_test_result_fail("bad file descriptor ignored\n");
+		ret = 1;
+	}
+
+	for (int i = 0; i < 5; i++) {
+		const char *dev_filename = dev_files[i];
+
+		if (test_cachestat(dev_filename, false, false, false,
+			4, O_RDONLY, 0400) == KSFT_PASS)
+			ksft_test_result_pass("cachestat works with %s\n", dev_filename);
+		else {
+			ksft_test_result_fail("cachestat fails with %s\n", dev_filename);
+			ret = 1;
+		}
+	}
+
+	if (test_cachestat("tmpfilecachestat", true, true,
+		false, 4, O_CREAT | O_RDWR, 0600) == KSFT_PASS)
+		ksft_test_result_pass("cachestat works with a normal file\n");
+	else {
+		ksft_test_result_fail("cachestat fails with normal file\n");
+		ret = 1;
+	}
+
+	switch (test_cachestat("tmpfilecachestat", true, true,
+		true, 4, O_CREAT | O_RDWR, 0600)) {
+	case KSFT_FAIL:
+		ksft_test_result_fail("cachestat fsync fails with normal file\n");
+		ret = KSFT_FAIL;
+		break;
+	case KSFT_PASS:
+		ksft_test_result_pass("cachestat fsync works with a normal file\n");
+		break;
+	case KSFT_SKIP:
+		ksft_test_result_skip("tmpfilecachestat is on tmpfs\n");
+		break;
+	}
+
+	if (run_cachestat_test(FILE_SHMEM))
+		ksft_test_result_pass("cachestat works with a shmem file\n");
+	else {
+		ksft_test_result_fail("cachestat fails with a shmem file\n");
+		ret = 1;
+	}
+
+	if (run_cachestat_test(FILE_MMAP))
+		ksft_test_result_pass("cachestat works with a mmap file\n");
+	else {
+		ksft_test_result_fail("cachestat fails with a mmap file\n");
+		ret = 1;
+	}
+	return ret;
+}
diff --git a/tools/testing/selftests/capabilities/.gitignore b/tools/testing/selftests/capabilities/.gitignore
new file mode 100644
index 000000000000..426d9adca67c
--- /dev/null
+++ b/tools/testing/selftests/capabilities/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+test_execve
+validate_cap
diff --git a/tools/testing/selftests/capabilities/Makefile b/tools/testing/selftests/capabilities/Makefile
new file mode 100644
index 000000000000..411ac098308f
--- /dev/null
+++ b/tools/testing/selftests/capabilities/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_FILES := validate_cap
+TEST_GEN_PROGS := test_execve
+
+CFLAGS += -O2 -g -std=gnu99 -Wall $(KHDR_INCLUDES)
+LDLIBS += -lcap-ng -lrt -ldl
+
+include ../lib.mk
+
diff --git a/tools/testing/selftests/capabilities/test_execve.c b/tools/testing/selftests/capabilities/test_execve.c
new file mode 100644
index 000000000000..46fc8d46b6e6
--- /dev/null
+++ b/tools/testing/selftests/capabilities/test_execve.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <cap-ng.h>
+#include <linux/capability.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdarg.h>
+#include <sched.h>
+#include <sys/mount.h>
+#include <limits.h>
+#include <libgen.h>
+#include <malloc.h>
+#include <sys/wait.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+
+#include "kselftest.h"
+
+static int nerrs;
+static pid_t mpid;	/*  main() pid is used to avoid duplicate test counts */
+
+static void vmaybe_write_file(bool enoent_ok, char *filename, char *fmt, va_list ap)
+{
+	char buf[4096];
+	int fd;
+	ssize_t written;
+	int buf_len;
+
+	buf_len = vsnprintf(buf, sizeof(buf), fmt, ap);
+	if (buf_len < 0)
+		ksft_exit_fail_msg("vsnprintf failed - %s\n", strerror(errno));
+
+	if (buf_len >= sizeof(buf))
+		ksft_exit_fail_msg("vsnprintf output truncated\n");
+
+
+	fd = open(filename, O_WRONLY);
+	if (fd < 0) {
+		if ((errno == ENOENT) && enoent_ok)
+			return;
+		ksft_exit_fail_msg("open of %s failed - %s\n",
+					filename, strerror(errno));
+	}
+	written = write(fd, buf, buf_len);
+	if (written != buf_len) {
+		if (written >= 0) {
+			ksft_exit_fail_msg("short write to %s\n", filename);
+		} else {
+			ksft_exit_fail_msg("write to %s failed - %s\n",
+						filename, strerror(errno));
+		}
+	}
+	if (close(fd) != 0) {
+		ksft_exit_fail_msg("close of %s failed - %s\n",
+					filename, strerror(errno));
+	}
+}
+
+static void maybe_write_file(char *filename, char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vmaybe_write_file(true, filename, fmt, ap);
+	va_end(ap);
+}
+
+static void write_file(char *filename, char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vmaybe_write_file(false, filename, fmt, ap);
+	va_end(ap);
+}
+
+static bool create_and_enter_ns(uid_t inner_uid)
+{
+	uid_t outer_uid;
+	gid_t outer_gid;
+	int i, ret;
+	bool have_outer_privilege;
+
+	outer_uid = getuid();
+	outer_gid = getgid();
+
+	if (outer_uid == 0 && unshare(CLONE_NEWNS) == 0) {
+		ksft_print_msg("[NOTE]\tUsing global UIDs for tests\n");
+		if (prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0) != 0)
+			ksft_exit_fail_msg("PR_SET_KEEPCAPS - %s\n",
+						strerror(errno));
+		if (setresuid(inner_uid, inner_uid, -1) != 0)
+			ksft_exit_fail_msg("setresuid - %s\n", strerror(errno));
+
+		// Re-enable effective caps
+		ret = capng_get_caps_process();
+		if (ret == -1)
+			ksft_exit_fail_msg("capng_get_caps_process failed\n");
+
+		for (i = 0; i < CAP_LAST_CAP; i++)
+			if (capng_have_capability(CAPNG_PERMITTED, i))
+				capng_update(CAPNG_ADD, CAPNG_EFFECTIVE, i);
+		if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+			ksft_exit_fail_msg(
+					"capng_apply - %s\n", strerror(errno));
+
+		have_outer_privilege = true;
+	} else if (unshare(CLONE_NEWUSER | CLONE_NEWNS) == 0) {
+		ksft_print_msg("[NOTE]\tUsing a user namespace for tests\n");
+		maybe_write_file("/proc/self/setgroups", "deny");
+		write_file("/proc/self/uid_map", "%d %d 1", inner_uid, outer_uid);
+		write_file("/proc/self/gid_map", "0 %d 1", outer_gid);
+
+		have_outer_privilege = false;
+	} else {
+		ksft_exit_skip("must be root or be able to create a userns\n");
+	}
+
+	if (mount("none", "/", NULL, MS_REC | MS_PRIVATE, NULL) != 0)
+		ksft_exit_fail_msg("remount everything private - %s\n",
+					strerror(errno));
+
+	return have_outer_privilege;
+}
+
+static void chdir_to_tmpfs(void)
+{
+	char cwd[PATH_MAX];
+	if (getcwd(cwd, sizeof(cwd)) != cwd)
+		ksft_exit_fail_msg("getcwd - %s\n", strerror(errno));
+
+	if (mount("private_tmp", ".", "tmpfs", 0, "mode=0777") != 0)
+		ksft_exit_fail_msg("mount private tmpfs - %s\n",
+					strerror(errno));
+
+	if (chdir(cwd) != 0)
+		ksft_exit_fail_msg("chdir to private tmpfs - %s\n",
+					strerror(errno));
+}
+
+static void copy_fromat_to(int fromfd, const char *fromname, const char *toname)
+{
+	int from = openat(fromfd, fromname, O_RDONLY);
+	if (from == -1)
+		ksft_exit_fail_msg("open copy source - %s\n", strerror(errno));
+
+	int to = open(toname, O_CREAT | O_WRONLY | O_EXCL, 0700);
+
+	while (true) {
+		char buf[4096];
+		ssize_t sz = read(from, buf, sizeof(buf));
+		if (sz == 0)
+			break;
+		if (sz < 0)
+			ksft_exit_fail_msg("read - %s\n", strerror(errno));
+
+		if (write(to, buf, sz) != sz)
+			/* no short writes on tmpfs */
+			ksft_exit_fail_msg("write - %s\n", strerror(errno));
+	}
+
+	close(from);
+	close(to);
+}
+
+static bool fork_wait(void)
+{
+	pid_t child = fork();
+	if (child == 0) {
+		nerrs = 0;
+		return true;
+	} else if (child > 0) {
+		int status;
+		if (waitpid(child, &status, 0) != child ||
+		    !WIFEXITED(status)) {
+			ksft_print_msg("Child died\n");
+			nerrs++;
+		} else if (WEXITSTATUS(status) != 0) {
+			ksft_print_msg("Child failed\n");
+			nerrs++;
+		} else {
+			/* don't print this message for mpid */
+			if (getpid() != mpid)
+				ksft_test_result_pass("Passed\n");
+		}
+		return false;
+	} else {
+		ksft_exit_fail_msg("fork - %s\n", strerror(errno));
+		return false;
+	}
+}
+
+static void exec_other_validate_cap(const char *name,
+				    bool eff, bool perm, bool inh, bool ambient)
+{
+	execl(name, name, (eff ? "1" : "0"),
+	      (perm ? "1" : "0"), (inh ? "1" : "0"), (ambient ? "1" : "0"),
+	      NULL);
+	ksft_exit_fail_msg("execl - %s\n", strerror(errno));
+}
+
+static void exec_validate_cap(bool eff, bool perm, bool inh, bool ambient)
+{
+	exec_other_validate_cap("./validate_cap", eff, perm, inh, ambient);
+}
+
+static int do_tests(int uid, const char *our_path)
+{
+	int ret;
+	bool have_outer_privilege = create_and_enter_ns(uid);
+
+	int ourpath_fd = open(our_path, O_RDONLY | O_DIRECTORY);
+	if (ourpath_fd == -1)
+		ksft_exit_fail_msg("open '%s' - %s\n",
+					our_path, strerror(errno));
+
+	chdir_to_tmpfs();
+
+	copy_fromat_to(ourpath_fd, "validate_cap", "validate_cap");
+
+	if (have_outer_privilege) {
+		uid_t gid = getegid();
+
+		copy_fromat_to(ourpath_fd, "validate_cap",
+			       "validate_cap_suidroot");
+		if (chown("validate_cap_suidroot", 0, -1) != 0)
+			ksft_exit_fail_msg("chown - %s\n", strerror(errno));
+		if (chmod("validate_cap_suidroot", S_ISUID | 0700) != 0)
+			ksft_exit_fail_msg("chmod - %s\n", strerror(errno));
+
+		copy_fromat_to(ourpath_fd, "validate_cap",
+			       "validate_cap_suidnonroot");
+		if (chown("validate_cap_suidnonroot", uid + 1, -1) != 0)
+			ksft_exit_fail_msg("chown - %s\n", strerror(errno));
+		if (chmod("validate_cap_suidnonroot", S_ISUID | 0700) != 0)
+			ksft_exit_fail_msg("chmod - %s\n", strerror(errno));
+
+		copy_fromat_to(ourpath_fd, "validate_cap",
+			       "validate_cap_sgidroot");
+		if (chown("validate_cap_sgidroot", -1, 0) != 0)
+			ksft_exit_fail_msg("chown - %s\n", strerror(errno));
+		if (chmod("validate_cap_sgidroot", S_ISGID | 0710) != 0)
+			ksft_exit_fail_msg("chmod - %s\n", strerror(errno));
+
+		copy_fromat_to(ourpath_fd, "validate_cap",
+			       "validate_cap_sgidnonroot");
+		if (chown("validate_cap_sgidnonroot", -1, gid + 1) != 0)
+			ksft_exit_fail_msg("chown - %s\n", strerror(errno));
+		if (chmod("validate_cap_sgidnonroot", S_ISGID | 0710) != 0)
+			ksft_exit_fail_msg("chmod - %s\n", strerror(errno));
+	}
+
+	ret = capng_get_caps_process();
+	if (ret == -1)
+		ksft_exit_fail_msg("capng_get_caps_process failed\n");
+
+	/* Make sure that i starts out clear */
+	capng_update(CAPNG_DROP, CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE);
+	if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+		ksft_exit_fail_msg("capng_apply - %s\n", strerror(errno));
+
+	if (uid == 0) {
+		ksft_print_msg("[RUN]\tRoot => ep\n");
+		if (fork_wait())
+			exec_validate_cap(true, true, false, false);
+	} else {
+		ksft_print_msg("[RUN]\tNon-root => no caps\n");
+		if (fork_wait())
+			exec_validate_cap(false, false, false, false);
+	}
+
+	ksft_print_msg("Check cap_ambient manipulation rules\n");
+
+	/* We should not be able to add ambient caps yet. */
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != -1 || errno != EPERM) {
+		if (errno == EINVAL)
+			ksft_test_result_fail(
+				"PR_CAP_AMBIENT_RAISE isn't supported\n");
+		else
+			ksft_test_result_fail(
+				"PR_CAP_AMBIENT_RAISE should have failed eith EPERM on a non-inheritable cap\n");
+		return 1;
+	}
+	ksft_test_result_pass(
+		"PR_CAP_AMBIENT_RAISE failed on non-inheritable cap\n");
+
+	capng_update(CAPNG_ADD, CAPNG_INHERITABLE, CAP_NET_RAW);
+	capng_update(CAPNG_DROP, CAPNG_PERMITTED, CAP_NET_RAW);
+	capng_update(CAPNG_DROP, CAPNG_EFFECTIVE, CAP_NET_RAW);
+	if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+		ksft_exit_fail_msg("capng_apply - %s\n", strerror(errno));
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_RAW, 0, 0, 0) != -1 || errno != EPERM) {
+		ksft_test_result_fail(
+			"PR_CAP_AMBIENT_RAISE should have failed on a non-permitted cap\n");
+		return 1;
+	}
+	ksft_test_result_pass(
+		"PR_CAP_AMBIENT_RAISE failed on non-permitted cap\n");
+
+	capng_update(CAPNG_ADD, CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE);
+	if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+		ksft_exit_fail_msg("capng_apply - %s\n", strerror(errno));
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) {
+		ksft_test_result_fail(
+			"PR_CAP_AMBIENT_RAISE should have succeeded\n");
+		return 1;
+	}
+	ksft_test_result_pass("PR_CAP_AMBIENT_RAISE worked\n");
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 1) {
+		ksft_test_result_fail("PR_CAP_AMBIENT_IS_SET is broken\n");
+		return 1;
+	}
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_CLEAR_ALL, 0, 0, 0, 0) != 0)
+		ksft_exit_fail_msg("PR_CAP_AMBIENT_CLEAR_ALL - %s\n",
+					strerror(errno));
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) {
+		ksft_test_result_fail(
+			"PR_CAP_AMBIENT_CLEAR_ALL didn't work\n");
+		return 1;
+	}
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0)
+		ksft_exit_fail_msg("PR_CAP_AMBIENT_RAISE - %s\n",
+					strerror(errno));
+
+	capng_update(CAPNG_DROP, CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE);
+	if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+		ksft_exit_fail_msg("capng_apply - %s\n", strerror(errno));
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0) {
+		ksft_test_result_fail("Dropping I should have dropped A\n");
+		return 1;
+	}
+
+	ksft_test_result_pass("Basic manipulation appears to work\n");
+
+	capng_update(CAPNG_ADD, CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE);
+	if (capng_apply(CAPNG_SELECT_CAPS) != 0)
+		ksft_exit_fail_msg("capng_apply - %s\n", strerror(errno));
+	if (uid == 0) {
+		ksft_print_msg("[RUN]\tRoot +i => eip\n");
+		if (fork_wait())
+			exec_validate_cap(true, true, true, false);
+	} else {
+		ksft_print_msg("[RUN]\tNon-root +i => i\n");
+		if (fork_wait())
+			exec_validate_cap(false, false, true, false);
+	}
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_RAISE, CAP_NET_BIND_SERVICE, 0, 0, 0) != 0)
+		ksft_exit_fail_msg("PR_CAP_AMBIENT_RAISE - %s\n",
+					strerror(errno));
+
+	ksft_print_msg("[RUN]\tUID %d +ia => eipa\n", uid);
+	if (fork_wait())
+		exec_validate_cap(true, true, true, true);
+
+	/* The remaining tests need real privilege */
+
+	if (!have_outer_privilege) {
+		ksft_test_result_skip("SUID/SGID tests (needs privilege)\n");
+		goto done;
+	}
+
+	if (uid == 0) {
+		ksft_print_msg("[RUN]\tRoot +ia, suidroot => eipa\n");
+		if (fork_wait())
+			exec_other_validate_cap("./validate_cap_suidroot",
+						true, true, true, true);
+
+		ksft_print_msg("[RUN]\tRoot +ia, suidnonroot => ip\n");
+		if (fork_wait())
+			exec_other_validate_cap("./validate_cap_suidnonroot",
+						false, true, true, false);
+
+		ksft_print_msg("[RUN]\tRoot +ia, sgidroot => eipa\n");
+		if (fork_wait())
+			exec_other_validate_cap("./validate_cap_sgidroot",
+						true, true, true, true);
+
+		if (fork_wait()) {
+			ksft_print_msg(
+				"[RUN]\tRoot, gid != 0, +ia, sgidroot => eip\n");
+			if (setresgid(1, 1, 1) != 0)
+				ksft_exit_fail_msg("setresgid - %s\n",
+							strerror(errno));
+			exec_other_validate_cap("./validate_cap_sgidroot",
+						true, true, true, false);
+		}
+
+		ksft_print_msg("[RUN]\tRoot +ia, sgidnonroot => eip\n");
+		if (fork_wait())
+			exec_other_validate_cap("./validate_cap_sgidnonroot",
+						true, true, true, false);
+	} else {
+		ksft_print_msg("[RUN]\tNon-root +ia, sgidnonroot => i\n");
+		if (fork_wait())
+			exec_other_validate_cap("./validate_cap_sgidnonroot",
+					false, false, true, false);
+
+		if (fork_wait()) {
+			ksft_print_msg("[RUN]\tNon-root +ia, sgidroot => i\n");
+			if (setresgid(1, 1, 1) != 0)
+				ksft_exit_fail_msg("setresgid - %s\n",
+							strerror(errno));
+			exec_other_validate_cap("./validate_cap_sgidroot",
+						false, false, true, false);
+		}
+	}
+
+done:
+	ksft_print_cnts();
+	return nerrs ? 1 : 0;
+}
+
+int main(int argc, char **argv)
+{
+	char *tmp1, *tmp2, *our_path;
+
+	/* Find our path */
+	tmp1 = strdup(argv[0]);
+	if (!tmp1)
+		ksft_exit_fail_msg("strdup - %s\n", strerror(errno));
+	tmp2 = dirname(tmp1);
+	our_path = strdup(tmp2);
+	if (!our_path)
+		ksft_exit_fail_msg("strdup - %s\n", strerror(errno));
+	free(tmp1);
+
+	mpid = getpid();
+
+	if (fork_wait()) {
+		ksft_print_header();
+		ksft_set_plan(12);
+		ksft_print_msg("[RUN]\t+++ Tests with uid == 0 +++\n");
+		return do_tests(0, our_path);
+	}
+
+	ksft_print_msg("==================================================\n");
+
+	if (fork_wait()) {
+		ksft_print_header();
+		ksft_set_plan(9);
+		ksft_print_msg("[RUN]\t+++ Tests with uid != 0 +++\n");
+		return do_tests(1, our_path);
+	}
+
+	return nerrs ? 1 : 0;
+}
diff --git a/tools/testing/selftests/capabilities/validate_cap.c b/tools/testing/selftests/capabilities/validate_cap.c
new file mode 100644
index 000000000000..cef1d9937b9f
--- /dev/null
+++ b/tools/testing/selftests/capabilities/validate_cap.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <cap-ng.h>
+#include <linux/capability.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <sys/auxv.h>
+
+#include "kselftest.h"
+
+#if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19)
+# define HAVE_GETAUXVAL
+#endif
+
+static bool bool_arg(char **argv, int i)
+{
+	if (!strcmp(argv[i], "0"))
+		return false;
+	else if (!strcmp(argv[i], "1"))
+		return true;
+	else {
+		ksft_exit_fail_msg("wrong argv[%d]\n", i);
+		return false;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	const char *atsec = "";
+	int ret;
+
+	/*
+	 * Be careful just in case a setgid or setcapped copy of this
+	 * helper gets out.
+	 */
+
+	if (argc != 5)
+		ksft_exit_fail_msg("wrong argc\n");
+
+#ifdef HAVE_GETAUXVAL
+	if (getauxval(AT_SECURE))
+		atsec = " (AT_SECURE is set)";
+	else
+		atsec = " (AT_SECURE is not set)";
+#endif
+
+	ret = capng_get_caps_process();
+	if (ret == -1) {
+		ksft_print_msg("capng_get_caps_process failed\n");
+		return 1;
+	}
+
+	if (capng_have_capability(CAPNG_EFFECTIVE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 1)) {
+		ksft_print_msg("Wrong effective state%s\n", atsec);
+		return 1;
+	}
+
+	if (capng_have_capability(CAPNG_PERMITTED, CAP_NET_BIND_SERVICE) != bool_arg(argv, 2)) {
+		ksft_print_msg("Wrong permitted state%s\n", atsec);
+		return 1;
+	}
+
+	if (capng_have_capability(CAPNG_INHERITABLE, CAP_NET_BIND_SERVICE) != bool_arg(argv, 3)) {
+		ksft_print_msg("Wrong inheritable state%s\n", atsec);
+		return 1;
+	}
+
+	if (prctl(PR_CAP_AMBIENT, PR_CAP_AMBIENT_IS_SET, CAP_NET_BIND_SERVICE, 0, 0, 0) != bool_arg(argv, 4)) {
+		ksft_print_msg("Wrong ambient state%s\n", atsec);
+		return 1;
+	}
+
+	ksft_print_msg("%s: Capabilities after execve were correct\n",
+			"validate_cap:");
+	return 0;
+}
diff --git a/tools/testing/selftests/cgroup/.gitignore b/tools/testing/selftests/cgroup/.gitignore
new file mode 100644
index 000000000000..952e4448bf07
--- /dev/null
+++ b/tools/testing/selftests/cgroup/.gitignore
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+test_core
+test_cpu
+test_cpuset
+test_freezer
+test_hugetlb_memcg
+test_kill
+test_kmem
+test_memcontrol
+test_pids
+test_zswap
+wait_inotify
diff --git a/tools/testing/selftests/cgroup/Makefile b/tools/testing/selftests/cgroup/Makefile
new file mode 100644
index 000000000000..e01584c2189a
--- /dev/null
+++ b/tools/testing/selftests/cgroup/Makefile
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wall -pthread
+
+all: ${HELPER_PROGS}
+
+TEST_FILES     := with_stress.sh
+TEST_PROGS     := test_stress.sh test_cpuset_prs.sh test_cpuset_v1_hp.sh
+TEST_GEN_FILES := wait_inotify
+# Keep the lists lexicographically sorted
+TEST_GEN_PROGS  = test_core
+TEST_GEN_PROGS += test_cpu
+TEST_GEN_PROGS += test_cpuset
+TEST_GEN_PROGS += test_freezer
+TEST_GEN_PROGS += test_hugetlb_memcg
+TEST_GEN_PROGS += test_kill
+TEST_GEN_PROGS += test_kmem
+TEST_GEN_PROGS += test_memcontrol
+TEST_GEN_PROGS += test_pids
+TEST_GEN_PROGS += test_zswap
+
+LOCAL_HDRS += $(selfdir)/clone3/clone3_selftests.h $(selfdir)/pidfd/pidfd.h
+
+include ../lib.mk
+include lib/libcgroup.mk
+
+$(OUTPUT)/test_core: $(LIBCGROUP_O)
+$(OUTPUT)/test_cpu: $(LIBCGROUP_O)
+$(OUTPUT)/test_cpuset: $(LIBCGROUP_O)
+$(OUTPUT)/test_freezer: $(LIBCGROUP_O)
+$(OUTPUT)/test_hugetlb_memcg: $(LIBCGROUP_O)
+$(OUTPUT)/test_kill: $(LIBCGROUP_O)
+$(OUTPUT)/test_kmem: $(LIBCGROUP_O)
+$(OUTPUT)/test_memcontrol: $(LIBCGROUP_O)
+$(OUTPUT)/test_pids: $(LIBCGROUP_O)
+$(OUTPUT)/test_zswap: $(LIBCGROUP_O)
diff --git a/tools/testing/selftests/cgroup/config b/tools/testing/selftests/cgroup/config
new file mode 100644
index 000000000000..39f979690dd3
--- /dev/null
+++ b/tools/testing/selftests/cgroup/config
@@ -0,0 +1,6 @@
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_MEMCG=y
+CONFIG_PAGE_COUNTER=y
diff --git a/tools/testing/selftests/cgroup/lib/cgroup_util.c b/tools/testing/selftests/cgroup/lib/cgroup_util.c
new file mode 100644
index 000000000000..44c52f620fda
--- /dev/null
+++ b/tools/testing/selftests/cgroup/lib/cgroup_util.c
@@ -0,0 +1,639 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/limits.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/inotify.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "cgroup_util.h"
+#include "../../clone3/clone3_selftests.h"
+
+bool cg_test_v1_named;
+
+/* Returns read len on success, or -errno on failure. */
+ssize_t read_text(const char *path, char *buf, size_t max_len)
+{
+	ssize_t len;
+	int fd;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return -errno;
+
+	len = read(fd, buf, max_len - 1);
+
+	if (len >= 0)
+		buf[len] = 0;
+
+	close(fd);
+	return len < 0 ? -errno : len;
+}
+
+/* Returns written len on success, or -errno on failure. */
+ssize_t write_text(const char *path, char *buf, ssize_t len)
+{
+	int fd;
+
+	fd = open(path, O_WRONLY | O_APPEND);
+	if (fd < 0)
+		return -errno;
+
+	len = write(fd, buf, len);
+	close(fd);
+	return len < 0 ? -errno : len;
+}
+
+char *cg_name(const char *root, const char *name)
+{
+	size_t len = strlen(root) + strlen(name) + 2;
+	char *ret = malloc(len);
+
+	snprintf(ret, len, "%s/%s", root, name);
+
+	return ret;
+}
+
+char *cg_name_indexed(const char *root, const char *name, int index)
+{
+	size_t len = strlen(root) + strlen(name) + 10;
+	char *ret = malloc(len);
+
+	snprintf(ret, len, "%s/%s_%d", root, name, index);
+
+	return ret;
+}
+
+char *cg_control(const char *cgroup, const char *control)
+{
+	size_t len = strlen(cgroup) + strlen(control) + 2;
+	char *ret = malloc(len);
+
+	snprintf(ret, len, "%s/%s", cgroup, control);
+
+	return ret;
+}
+
+/* Returns 0 on success, or -errno on failure. */
+int cg_read(const char *cgroup, const char *control, char *buf, size_t len)
+{
+	char path[PATH_MAX];
+	ssize_t ret;
+
+	snprintf(path, sizeof(path), "%s/%s", cgroup, control);
+
+	ret = read_text(path, buf, len);
+	return ret >= 0 ? 0 : ret;
+}
+
+int cg_read_strcmp(const char *cgroup, const char *control,
+		   const char *expected)
+{
+	size_t size;
+	char *buf;
+	int ret;
+
+	/* Handle the case of comparing against empty string */
+	if (!expected)
+		return -1;
+	else
+		size = strlen(expected) + 1;
+
+	buf = malloc(size);
+	if (!buf)
+		return -1;
+
+	if (cg_read(cgroup, control, buf, size)) {
+		free(buf);
+		return -1;
+	}
+
+	ret = strcmp(expected, buf);
+	free(buf);
+	return ret;
+}
+
+int cg_read_strstr(const char *cgroup, const char *control, const char *needle)
+{
+	char buf[PAGE_SIZE];
+
+	if (cg_read(cgroup, control, buf, sizeof(buf)))
+		return -1;
+
+	return strstr(buf, needle) ? 0 : -1;
+}
+
+long cg_read_long(const char *cgroup, const char *control)
+{
+	char buf[128];
+
+	if (cg_read(cgroup, control, buf, sizeof(buf)))
+		return -1;
+
+	return atol(buf);
+}
+
+long cg_read_long_fd(int fd)
+{
+	char buf[128];
+
+	if (pread(fd, buf, sizeof(buf), 0) <= 0)
+		return -1;
+
+	return atol(buf);
+}
+
+long cg_read_key_long(const char *cgroup, const char *control, const char *key)
+{
+	char buf[PAGE_SIZE];
+	char *ptr;
+
+	if (cg_read(cgroup, control, buf, sizeof(buf)))
+		return -1;
+
+	ptr = strstr(buf, key);
+	if (!ptr)
+		return -1;
+
+	return atol(ptr + strlen(key));
+}
+
+long cg_read_lc(const char *cgroup, const char *control)
+{
+	char buf[PAGE_SIZE];
+	const char delim[] = "\n";
+	char *line;
+	long cnt = 0;
+
+	if (cg_read(cgroup, control, buf, sizeof(buf)))
+		return -1;
+
+	for (line = strtok(buf, delim); line; line = strtok(NULL, delim))
+		cnt++;
+
+	return cnt;
+}
+
+/* Returns 0 on success, or -errno on failure. */
+int cg_write(const char *cgroup, const char *control, char *buf)
+{
+	char path[PATH_MAX];
+	ssize_t len = strlen(buf), ret;
+
+	snprintf(path, sizeof(path), "%s/%s", cgroup, control);
+	ret = write_text(path, buf, len);
+	return ret == len ? 0 : ret;
+}
+
+/*
+ * Returns fd on success, or -1 on failure.
+ * (fd should be closed with close() as usual)
+ */
+int cg_open(const char *cgroup, const char *control, int flags)
+{
+	char path[PATH_MAX];
+
+	snprintf(path, sizeof(path), "%s/%s", cgroup, control);
+	return open(path, flags);
+}
+
+int cg_write_numeric(const char *cgroup, const char *control, long value)
+{
+	char buf[64];
+	int ret;
+
+	ret = sprintf(buf, "%lu", value);
+	if (ret < 0)
+		return ret;
+
+	return cg_write(cgroup, control, buf);
+}
+
+static int cg_find_root(char *root, size_t len, const char *controller,
+			bool *nsdelegate)
+{
+	char buf[10 * PAGE_SIZE];
+	char *fs, *mount, *type, *options;
+	const char delim[] = "\n\t ";
+
+	if (read_text("/proc/self/mounts", buf, sizeof(buf)) <= 0)
+		return -1;
+
+	/*
+	 * Example:
+	 * cgroup /sys/fs/cgroup cgroup2 rw,seclabel,noexec,relatime 0 0
+	 */
+	for (fs = strtok(buf, delim); fs; fs = strtok(NULL, delim)) {
+		mount = strtok(NULL, delim);
+		type = strtok(NULL, delim);
+		options = strtok(NULL, delim);
+		strtok(NULL, delim);
+		strtok(NULL, delim);
+		if (strcmp(type, "cgroup") == 0) {
+			if (!controller || !strstr(options, controller))
+				continue;
+		} else if (strcmp(type, "cgroup2") == 0) {
+			if (controller &&
+					cg_read_strstr(mount, "cgroup.controllers", controller))
+				continue;
+		} else {
+			continue;
+		}
+		strncpy(root, mount, len);
+
+		if (nsdelegate)
+			*nsdelegate = !!strstr(options, "nsdelegate");
+		return 0;
+
+	}
+
+	return -1;
+}
+
+int cg_find_controller_root(char *root, size_t len, const char *controller)
+{
+	return cg_find_root(root, len, controller, NULL);
+}
+
+int cg_find_unified_root(char *root, size_t len, bool *nsdelegate)
+{
+	return cg_find_root(root, len, NULL, nsdelegate);
+}
+
+int cg_create(const char *cgroup)
+{
+	return mkdir(cgroup, 0755);
+}
+
+int cg_wait_for_proc_count(const char *cgroup, int count)
+{
+	char buf[10 * PAGE_SIZE] = {0};
+	int attempts;
+	char *ptr;
+
+	for (attempts = 10; attempts >= 0; attempts--) {
+		int nr = 0;
+
+		if (cg_read(cgroup, "cgroup.procs", buf, sizeof(buf)))
+			break;
+
+		for (ptr = buf; *ptr; ptr++)
+			if (*ptr == '\n')
+				nr++;
+
+		if (nr >= count)
+			return 0;
+
+		usleep(100000);
+	}
+
+	return -1;
+}
+
+int cg_killall(const char *cgroup)
+{
+	char buf[PAGE_SIZE];
+	char *ptr = buf;
+
+	/* If cgroup.kill exists use it. */
+	if (!cg_write(cgroup, "cgroup.kill", "1"))
+		return 0;
+
+	if (cg_read(cgroup, "cgroup.procs", buf, sizeof(buf)))
+		return -1;
+
+	while (ptr < buf + sizeof(buf)) {
+		int pid = strtol(ptr, &ptr, 10);
+
+		if (pid == 0)
+			break;
+		if (*ptr)
+			ptr++;
+		else
+			break;
+		if (kill(pid, SIGKILL))
+			return -1;
+	}
+
+	return 0;
+}
+
+int cg_destroy(const char *cgroup)
+{
+	int ret;
+
+	if (!cgroup)
+		return 0;
+retry:
+	ret = rmdir(cgroup);
+	if (ret && errno == EBUSY) {
+		cg_killall(cgroup);
+		usleep(100);
+		goto retry;
+	}
+
+	if (ret && errno == ENOENT)
+		ret = 0;
+
+	return ret;
+}
+
+int cg_enter(const char *cgroup, int pid)
+{
+	char pidbuf[64];
+
+	snprintf(pidbuf, sizeof(pidbuf), "%d", pid);
+	return cg_write(cgroup, "cgroup.procs", pidbuf);
+}
+
+int cg_enter_current(const char *cgroup)
+{
+	return cg_write(cgroup, "cgroup.procs", "0");
+}
+
+int cg_enter_current_thread(const char *cgroup)
+{
+	return cg_write(cgroup, CG_THREADS_FILE, "0");
+}
+
+int cg_run(const char *cgroup,
+	   int (*fn)(const char *cgroup, void *arg),
+	   void *arg)
+{
+	int pid, retcode;
+
+	pid = fork();
+	if (pid < 0) {
+		return pid;
+	} else if (pid == 0) {
+		char buf[64];
+
+		snprintf(buf, sizeof(buf), "%d", getpid());
+		if (cg_write(cgroup, "cgroup.procs", buf))
+			exit(EXIT_FAILURE);
+		exit(fn(cgroup, arg));
+	} else {
+		waitpid(pid, &retcode, 0);
+		if (WIFEXITED(retcode))
+			return WEXITSTATUS(retcode);
+		else
+			return -1;
+	}
+}
+
+pid_t clone_into_cgroup(int cgroup_fd)
+{
+#ifdef CLONE_ARGS_SIZE_VER2
+	pid_t pid;
+
+	struct __clone_args args = {
+		.flags = CLONE_INTO_CGROUP,
+		.exit_signal = SIGCHLD,
+		.cgroup = cgroup_fd,
+	};
+
+	pid = sys_clone3(&args, sizeof(struct __clone_args));
+	/*
+	 * Verify that this is a genuine test failure:
+	 * ENOSYS -> clone3() not available
+	 * E2BIG  -> CLONE_INTO_CGROUP not available
+	 */
+	if (pid < 0 && (errno == ENOSYS || errno == E2BIG))
+		goto pretend_enosys;
+
+	return pid;
+
+pretend_enosys:
+#endif
+	errno = ENOSYS;
+	return -ENOSYS;
+}
+
+int clone_reap(pid_t pid, int options)
+{
+	int ret;
+	siginfo_t info = {
+		.si_signo = 0,
+	};
+
+again:
+	ret = waitid(P_PID, pid, &info, options | __WALL | __WNOTHREAD);
+	if (ret < 0) {
+		if (errno == EINTR)
+			goto again;
+		return -1;
+	}
+
+	if (options & WEXITED) {
+		if (WIFEXITED(info.si_status))
+			return WEXITSTATUS(info.si_status);
+	}
+
+	if (options & WSTOPPED) {
+		if (WIFSTOPPED(info.si_status))
+			return WSTOPSIG(info.si_status);
+	}
+
+	if (options & WCONTINUED) {
+		if (WIFCONTINUED(info.si_status))
+			return 0;
+	}
+
+	return -1;
+}
+
+int dirfd_open_opath(const char *dir)
+{
+	return open(dir, O_DIRECTORY | O_CLOEXEC | O_NOFOLLOW | O_PATH);
+}
+
+#define close_prot_errno(fd)                                                   \
+	if (fd >= 0) {                                                         \
+		int _e_ = errno;                                               \
+		close(fd);                                                     \
+		errno = _e_;                                                   \
+	}
+
+static int clone_into_cgroup_run_nowait(const char *cgroup,
+					int (*fn)(const char *cgroup, void *arg),
+					void *arg)
+{
+	int cgroup_fd;
+	pid_t pid;
+
+	cgroup_fd =  dirfd_open_opath(cgroup);
+	if (cgroup_fd < 0)
+		return -1;
+
+	pid = clone_into_cgroup(cgroup_fd);
+	close_prot_errno(cgroup_fd);
+	if (pid == 0)
+		exit(fn(cgroup, arg));
+
+	return pid;
+}
+
+int cg_run_nowait(const char *cgroup,
+		  int (*fn)(const char *cgroup, void *arg),
+		  void *arg)
+{
+	int pid;
+
+	pid = clone_into_cgroup_run_nowait(cgroup, fn, arg);
+	if (pid > 0)
+		return pid;
+
+	/* Genuine test failure. */
+	if (pid < 0 && errno != ENOSYS)
+		return -1;
+
+	pid = fork();
+	if (pid == 0) {
+		char buf[64];
+
+		snprintf(buf, sizeof(buf), "%d", getpid());
+		if (cg_write(cgroup, "cgroup.procs", buf))
+			exit(EXIT_FAILURE);
+		exit(fn(cgroup, arg));
+	}
+
+	return pid;
+}
+
+int proc_mount_contains(const char *option)
+{
+	char buf[4 * PAGE_SIZE];
+	ssize_t read;
+
+	read = read_text("/proc/mounts", buf, sizeof(buf));
+	if (read < 0)
+		return read;
+
+	return strstr(buf, option) != NULL;
+}
+
+int cgroup_feature(const char *feature)
+{
+	char buf[PAGE_SIZE];
+	ssize_t read;
+
+	read = read_text("/sys/kernel/cgroup/features", buf, sizeof(buf));
+	if (read < 0)
+		return read;
+
+	return strstr(buf, feature) != NULL;
+}
+
+ssize_t proc_read_text(int pid, bool thread, const char *item, char *buf, size_t size)
+{
+	char path[PATH_MAX];
+	ssize_t ret;
+
+	if (!pid)
+		snprintf(path, sizeof(path), "/proc/%s/%s",
+			 thread ? "thread-self" : "self", item);
+	else
+		snprintf(path, sizeof(path), "/proc/%d/%s", pid, item);
+
+	ret = read_text(path, buf, size);
+	return ret < 0 ? -1 : ret;
+}
+
+int proc_read_strstr(int pid, bool thread, const char *item, const char *needle)
+{
+	char buf[PAGE_SIZE];
+
+	if (proc_read_text(pid, thread, item, buf, sizeof(buf)) < 0)
+		return -1;
+
+	return strstr(buf, needle) ? 0 : -1;
+}
+
+int clone_into_cgroup_run_wait(const char *cgroup)
+{
+	int cgroup_fd;
+	pid_t pid;
+
+	cgroup_fd =  dirfd_open_opath(cgroup);
+	if (cgroup_fd < 0)
+		return -1;
+
+	pid = clone_into_cgroup(cgroup_fd);
+	close_prot_errno(cgroup_fd);
+	if (pid < 0)
+		return -1;
+
+	if (pid == 0)
+		exit(EXIT_SUCCESS);
+
+	/*
+	 * We don't care whether this fails. We only care whether the initial
+	 * clone succeeded.
+	 */
+	(void)clone_reap(pid, WEXITED);
+	return 0;
+}
+
+static int __prepare_for_wait(const char *cgroup, const char *filename)
+{
+	int fd, ret = -1;
+
+	fd = inotify_init1(0);
+	if (fd == -1)
+		return fd;
+
+	ret = inotify_add_watch(fd, cg_control(cgroup, filename), IN_MODIFY);
+	if (ret == -1) {
+		close(fd);
+		fd = -1;
+	}
+
+	return fd;
+}
+
+int cg_prepare_for_wait(const char *cgroup)
+{
+	return __prepare_for_wait(cgroup, "cgroup.events");
+}
+
+int memcg_prepare_for_wait(const char *cgroup)
+{
+	return __prepare_for_wait(cgroup, "memory.events");
+}
+
+int cg_wait_for(int fd)
+{
+	int ret = -1;
+	struct pollfd fds = {
+		.fd = fd,
+		.events = POLLIN,
+	};
+
+	while (true) {
+		ret = poll(&fds, 1, 10000);
+
+		if (ret == -1) {
+			if (errno == EINTR)
+				continue;
+
+			break;
+		}
+
+		if (ret > 0 && fds.revents & POLLIN) {
+			ret = 0;
+			break;
+		}
+	}
+
+	return ret;
+}
diff --git a/tools/testing/selftests/cgroup/lib/include/cgroup_util.h b/tools/testing/selftests/cgroup/lib/include/cgroup_util.h
new file mode 100644
index 000000000000..7ab2824ed7b5
--- /dev/null
+++ b/tools/testing/selftests/cgroup/lib/include/cgroup_util.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <stdbool.h>
+#include <stdlib.h>
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+#define MB(x) (x << 20)
+
+#define USEC_PER_SEC	1000000L
+#define NSEC_PER_SEC	1000000000L
+
+#define TEST_UID	65534 /* usually nobody, any !root is fine */
+
+#define CG_THREADS_FILE (!cg_test_v1_named ? "cgroup.threads" : "tasks")
+#define CG_NAMED_NAME "selftest"
+#define CG_PATH_FORMAT (!cg_test_v1_named ? "0::%s" : (":name=" CG_NAMED_NAME ":%s"))
+
+/*
+ * Checks if two given values differ by less than err% of their sum.
+ */
+static inline int values_close(long a, long b, int err)
+{
+	return labs(a - b) <= (a + b) / 100 * err;
+}
+
+/*
+ * Checks if two given values differ by less than err% of their sum and assert
+ * with detailed debug info if not.
+ */
+static inline int values_close_report(long a, long b, int err)
+{
+	long diff  = labs(a - b);
+	long limit = (a + b) / 100 * err;
+	double actual_err = (a + b) ? (100.0 * diff / (a + b)) : 0.0;
+	int close = diff <= limit;
+
+	if (!close)
+		fprintf(stderr,
+			"[FAIL] actual=%ld expected=%ld | diff=%ld | limit=%ld | "
+			"tolerance=%d%% | actual_error=%.2f%%\n",
+			a, b, diff, limit, err, actual_err);
+
+	return close;
+}
+
+extern ssize_t read_text(const char *path, char *buf, size_t max_len);
+extern ssize_t write_text(const char *path, char *buf, ssize_t len);
+
+extern int cg_find_controller_root(char *root, size_t len, const char *controller);
+extern int cg_find_unified_root(char *root, size_t len, bool *nsdelegate);
+extern char *cg_name(const char *root, const char *name);
+extern char *cg_name_indexed(const char *root, const char *name, int index);
+extern char *cg_control(const char *cgroup, const char *control);
+extern int cg_create(const char *cgroup);
+extern int cg_destroy(const char *cgroup);
+extern int cg_read(const char *cgroup, const char *control,
+		   char *buf, size_t len);
+extern int cg_read_strcmp(const char *cgroup, const char *control,
+			  const char *expected);
+extern int cg_read_strstr(const char *cgroup, const char *control,
+			  const char *needle);
+extern long cg_read_long(const char *cgroup, const char *control);
+extern long cg_read_long_fd(int fd);
+long cg_read_key_long(const char *cgroup, const char *control, const char *key);
+extern long cg_read_lc(const char *cgroup, const char *control);
+extern int cg_write(const char *cgroup, const char *control, char *buf);
+extern int cg_open(const char *cgroup, const char *control, int flags);
+int cg_write_numeric(const char *cgroup, const char *control, long value);
+extern int cg_run(const char *cgroup,
+		  int (*fn)(const char *cgroup, void *arg),
+		  void *arg);
+extern int cg_enter(const char *cgroup, int pid);
+extern int cg_enter_current(const char *cgroup);
+extern int cg_enter_current_thread(const char *cgroup);
+extern int cg_run_nowait(const char *cgroup,
+			 int (*fn)(const char *cgroup, void *arg),
+			 void *arg);
+extern int cg_wait_for_proc_count(const char *cgroup, int count);
+extern int cg_killall(const char *cgroup);
+int proc_mount_contains(const char *option);
+int cgroup_feature(const char *feature);
+extern ssize_t proc_read_text(int pid, bool thread, const char *item, char *buf, size_t size);
+extern int proc_read_strstr(int pid, bool thread, const char *item, const char *needle);
+extern pid_t clone_into_cgroup(int cgroup_fd);
+extern int clone_reap(pid_t pid, int options);
+extern int clone_into_cgroup_run_wait(const char *cgroup);
+extern int dirfd_open_opath(const char *dir);
+extern int cg_prepare_for_wait(const char *cgroup);
+extern int memcg_prepare_for_wait(const char *cgroup);
+extern int cg_wait_for(int fd);
+extern bool cg_test_v1_named;
diff --git a/tools/testing/selftests/cgroup/lib/libcgroup.mk b/tools/testing/selftests/cgroup/lib/libcgroup.mk
new file mode 100644
index 000000000000..7a73007204c3
--- /dev/null
+++ b/tools/testing/selftests/cgroup/lib/libcgroup.mk
@@ -0,0 +1,19 @@
+CGROUP_DIR := $(selfdir)/cgroup
+
+LIBCGROUP_C := lib/cgroup_util.c
+
+LIBCGROUP_O := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBCGROUP_C))
+
+LIBCGROUP_O_DIRS := $(shell dirname $(LIBCGROUP_O) | uniq)
+
+CFLAGS += -I$(CGROUP_DIR)/lib/include
+
+EXTRA_HDRS := $(selfdir)/clone3/clone3_selftests.h
+
+$(LIBCGROUP_O_DIRS):
+	mkdir -p $@
+
+$(LIBCGROUP_O): $(OUTPUT)/%.o : $(CGROUP_DIR)/%.c $(EXTRA_HDRS) $(LIBCGROUP_O_DIRS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+EXTRA_CLEAN += $(LIBCGROUP_O)
diff --git a/tools/testing/selftests/cgroup/memcg_protection.m b/tools/testing/selftests/cgroup/memcg_protection.m
new file mode 100644
index 000000000000..051daa3477b6
--- /dev/null
+++ b/tools/testing/selftests/cgroup/memcg_protection.m
@@ -0,0 +1,89 @@
+% SPDX-License-Identifier: GPL-2.0
+%
+% run as: octave-cli memcg_protection.m
+%
+% This script simulates reclaim protection behavior on a single level of memcg
+% hierarchy to illustrate how overcommitted protection spreads among siblings
+% (as it depends also on their current consumption).
+%
+% Simulation assumes siblings consumed the initial amount of memory (w/out
+% reclaim) and then the reclaim starts, all memory is reclaimable, i.e. treated
+% same. It simulates only non-low reclaim and assumes all memory.min = 0.
+%
+% Input configurations
+% --------------------
+% E number	parent effective protection
+% n vector	nominal protection of siblings set at the given level (memory.low)
+% c vector	current consumption -,,- (memory.current)
+
+% example from testcase (values in GB)
+E = 50 / 1024;
+n = [75 25 0 500 ] / 1024;
+c = [50 50 50 0] / 1024;
+
+% Reclaim parameters
+% ------------------
+
+% Minimal reclaim amount (GB)
+cluster = 32*4 / 2**20;
+
+% Reclaim coefficient (think as 0.5^sc->priority)
+alpha = .1
+
+% Simulation parameters
+% ---------------------
+epsilon = 1e-7;
+timeout = 1000;
+
+% Simulation loop
+% ---------------
+
+ch = [];
+eh = [];
+rh = [];
+
+for t = 1:timeout
+        % low_usage
+        u = min(c, n);
+        siblings = sum(u);
+
+        % effective_protection()
+        protected = min(n, c);                % start with nominal
+        e = protected * min(1, E / siblings); % normalize overcommit
+
+        % recursive protection
+        unclaimed = max(0, E - siblings);
+        parent_overuse = sum(c) - siblings;
+        if (unclaimed > 0 && parent_overuse > 0)
+                overuse = max(0, c - protected);
+                e += unclaimed * (overuse / parent_overuse);
+        endif
+
+        % get_scan_count()
+        r = alpha * c;             % assume all memory is in a single LRU list
+
+        % commit 1bc63fb1272b ("mm, memcg: make scan aggression always exclude protection")
+        sz = max(e, c);
+        r .*= (1 - (e+epsilon) ./ (sz+epsilon));
+
+        % uncomment to debug prints
+        % e, c, r
+
+        % nothing to reclaim, reached equilibrium
+        if max(r) < epsilon
+                break;
+        endif
+
+        % SWAP_CLUSTER_MAX roundup
+        r = max(r, (r > epsilon) .* cluster);
+        % XXX here I do parallel reclaim of all siblings
+        % in reality reclaim is serialized and each sibling recalculates own residual
+        c = max(c - r, 0);
+
+        ch = [ch ; c];
+        eh = [eh ; e];
+        rh = [rh ; r];
+endfor
+
+t
+c, e
diff --git a/tools/testing/selftests/cgroup/test_core.c b/tools/testing/selftests/cgroup/test_core.c
new file mode 100644
index 000000000000..102262555a59
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_core.c
@@ -0,0 +1,958 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+#include <linux/limits.h>
+#include <linux/sched.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+static bool nsdelegate;
+#ifndef CLONE_NEWCGROUP
+#define CLONE_NEWCGROUP 0
+#endif
+
+static int touch_anon(char *buf, size_t size)
+{
+	int fd;
+	char *pos = buf;
+
+	fd = open("/dev/urandom", O_RDONLY);
+	if (fd < 0)
+		return -1;
+
+	while (size > 0) {
+		ssize_t ret = read(fd, pos, size);
+
+		if (ret < 0) {
+			if (errno != EINTR) {
+				close(fd);
+				return -1;
+			}
+		} else {
+			pos += ret;
+			size -= ret;
+		}
+	}
+	close(fd);
+
+	return 0;
+}
+
+static int alloc_and_touch_anon_noexit(const char *cgroup, void *arg)
+{
+	int ppid = getppid();
+	size_t size = (size_t)arg;
+	void *buf;
+
+	buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
+		   0, 0);
+	if (buf == MAP_FAILED)
+		return -1;
+
+	if (touch_anon((char *)buf, size)) {
+		munmap(buf, size);
+		return -1;
+	}
+
+	while (getppid() == ppid)
+		sleep(1);
+
+	munmap(buf, size);
+	return 0;
+}
+
+/*
+ * Create a child process that allocates and touches 100MB, then waits to be
+ * killed. Wait until the child is attached to the cgroup, kill all processes
+ * in that cgroup and wait until "cgroup.procs" is empty. At this point try to
+ * destroy the empty cgroup. The test helps detect race conditions between
+ * dying processes leaving the cgroup and cgroup destruction path.
+ */
+static int test_cgcore_destroy(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cg_test = NULL;
+	int child_pid;
+	char buf[PAGE_SIZE];
+
+	cg_test = cg_name(root, "cg_test");
+
+	if (!cg_test)
+		goto cleanup;
+
+	for (int i = 0; i < 10; i++) {
+		if (cg_create(cg_test))
+			goto cleanup;
+
+		child_pid = cg_run_nowait(cg_test, alloc_and_touch_anon_noexit,
+					  (void *) MB(100));
+
+		if (child_pid < 0)
+			goto cleanup;
+
+		/* wait for the child to enter cgroup */
+		if (cg_wait_for_proc_count(cg_test, 1))
+			goto cleanup;
+
+		if (cg_killall(cg_test))
+			goto cleanup;
+
+		/* wait for cgroup to be empty */
+		while (1) {
+			if (cg_read(cg_test, "cgroup.procs", buf, sizeof(buf)))
+				goto cleanup;
+			if (buf[0] == '\0')
+				break;
+			usleep(1000);
+		}
+
+		if (rmdir(cg_test))
+			goto cleanup;
+
+		if (waitpid(child_pid, NULL, 0) < 0)
+			goto cleanup;
+	}
+	ret = KSFT_PASS;
+cleanup:
+	if (cg_test)
+		cg_destroy(cg_test);
+	free(cg_test);
+	return ret;
+}
+
+/*
+ * A(0) - B(0) - C(1)
+ *        \ D(0)
+ *
+ * A, B and C's "populated" fields would be 1 while D's 0.
+ * test that after the one process in C is moved to root,
+ * A,B and C's "populated" fields would flip to "0" and file
+ * modified events will be generated on the
+ * "cgroup.events" files of both cgroups.
+ */
+static int test_cgcore_populated(const char *root)
+{
+	int ret = KSFT_FAIL;
+	int err;
+	char *cg_test_a = NULL, *cg_test_b = NULL;
+	char *cg_test_c = NULL, *cg_test_d = NULL;
+	int cgroup_fd = -EBADF;
+	pid_t pid;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	cg_test_a = cg_name(root, "cg_test_a");
+	cg_test_b = cg_name(root, "cg_test_a/cg_test_b");
+	cg_test_c = cg_name(root, "cg_test_a/cg_test_b/cg_test_c");
+	cg_test_d = cg_name(root, "cg_test_a/cg_test_b/cg_test_d");
+
+	if (!cg_test_a || !cg_test_b || !cg_test_c || !cg_test_d)
+		goto cleanup;
+
+	if (cg_create(cg_test_a))
+		goto cleanup;
+
+	if (cg_create(cg_test_b))
+		goto cleanup;
+
+	if (cg_create(cg_test_c))
+		goto cleanup;
+
+	if (cg_create(cg_test_d))
+		goto cleanup;
+
+	if (cg_enter_current(cg_test_c))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_a, "cgroup.events", "populated 1\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_b, "cgroup.events", "populated 1\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_c, "cgroup.events", "populated 1\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_d, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	if (cg_enter_current(root))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_a, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_b, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_c, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_d, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	/* Test that we can directly clone into a new cgroup. */
+	cgroup_fd = dirfd_open_opath(cg_test_d);
+	if (cgroup_fd < 0)
+		goto cleanup;
+
+	pid = clone_into_cgroup(cgroup_fd);
+	if (pid < 0) {
+		if (errno == ENOSYS)
+			goto cleanup_pass;
+		goto cleanup;
+	}
+
+	if (pid == 0) {
+		if (raise(SIGSTOP))
+			exit(EXIT_FAILURE);
+		exit(EXIT_SUCCESS);
+	}
+
+	err = cg_read_strcmp(cg_test_d, "cgroup.events", "populated 1\n");
+
+	(void)clone_reap(pid, WSTOPPED);
+	(void)kill(pid, SIGCONT);
+	(void)clone_reap(pid, WEXITED);
+
+	if (err)
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_test_d, "cgroup.events", "populated 0\n"))
+		goto cleanup;
+
+	/* Remove cgroup. */
+	if (cg_test_d) {
+		cg_destroy(cg_test_d);
+		free(cg_test_d);
+		cg_test_d = NULL;
+	}
+
+	pid = clone_into_cgroup(cgroup_fd);
+	if (pid < 0)
+		goto cleanup_pass;
+	if (pid == 0)
+		exit(EXIT_SUCCESS);
+	(void)clone_reap(pid, WEXITED);
+	goto cleanup;
+
+cleanup_pass:
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cg_test_d)
+		cg_destroy(cg_test_d);
+	if (cg_test_c)
+		cg_destroy(cg_test_c);
+	if (cg_test_b)
+		cg_destroy(cg_test_b);
+	if (cg_test_a)
+		cg_destroy(cg_test_a);
+	free(cg_test_d);
+	free(cg_test_c);
+	free(cg_test_b);
+	free(cg_test_a);
+	if (cgroup_fd >= 0)
+		close(cgroup_fd);
+	return ret;
+}
+
+/*
+ * A (domain threaded) - B (threaded) - C (domain)
+ *
+ * test that C can't be used until it is turned into a
+ * threaded cgroup.  "cgroup.type" file will report "domain (invalid)" in
+ * these cases. Operations which fail due to invalid topology use
+ * EOPNOTSUPP as the errno.
+ */
+static int test_cgcore_invalid_domain(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *grandparent = NULL, *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	grandparent = cg_name(root, "cg_test_grandparent");
+	parent = cg_name(root, "cg_test_grandparent/cg_test_parent");
+	child = cg_name(root, "cg_test_grandparent/cg_test_parent/cg_test_child");
+	if (!parent || !child || !grandparent)
+		goto cleanup;
+
+	if (cg_create(grandparent))
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.type", "threaded"))
+		goto cleanup;
+
+	if (cg_read_strcmp(child, "cgroup.type", "domain invalid\n"))
+		goto cleanup;
+
+	if (!cg_enter_current(child))
+		goto cleanup;
+
+	if (errno != EOPNOTSUPP)
+		goto cleanup;
+
+	if (!clone_into_cgroup_run_wait(child))
+		goto cleanup;
+
+	if (errno == ENOSYS)
+		goto cleanup_pass;
+
+	if (errno != EOPNOTSUPP)
+		goto cleanup;
+
+cleanup_pass:
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	if (grandparent)
+		cg_destroy(grandparent);
+	free(child);
+	free(parent);
+	free(grandparent);
+	return ret;
+}
+
+/*
+ * Test that when a child becomes threaded
+ * the parent type becomes domain threaded.
+ */
+static int test_cgcore_parent_becomes_threaded(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	parent = cg_name(root, "cg_test_parent");
+	child = cg_name(root, "cg_test_parent/cg_test_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(child, "cgroup.type", "threaded"))
+		goto cleanup;
+
+	if (cg_read_strcmp(parent, "cgroup.type", "domain threaded\n"))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+	return ret;
+
+}
+
+/*
+ * Test that there's no internal process constrain on threaded cgroups.
+ * You can add threads/processes on a parent with a controller enabled.
+ */
+static int test_cgcore_no_internal_process_constraint_on_threads(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named ||
+	    cg_read_strstr(root, "cgroup.controllers", "cpu") ||
+	    cg_write(root, "cgroup.subtree_control", "+cpu")) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	parent = cg_name(root, "cg_test_parent");
+	child = cg_name(root, "cg_test_parent/cg_test_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.type", "threaded"))
+		goto cleanup;
+
+	if (cg_write(child, "cgroup.type", "threaded"))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+
+	if (cg_enter_current(parent))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	cg_enter_current(root);
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+	return ret;
+}
+
+/*
+ * Test that you can't enable a controller on a child if it's not enabled
+ * on the parent.
+ */
+static int test_cgcore_top_down_constraint_enable(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	parent = cg_name(root, "cg_test_parent");
+	child = cg_name(root, "cg_test_parent/cg_test_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (!cg_write(child, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+	return ret;
+}
+
+/*
+ * Test that you can't disable a controller on a parent
+ * if it's enabled in a child.
+ */
+static int test_cgcore_top_down_constraint_disable(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	parent = cg_name(root, "cg_test_parent");
+	child = cg_name(root, "cg_test_parent/cg_test_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_write(child, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (!cg_write(parent, "cgroup.subtree_control", "-memory"))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+	return ret;
+}
+
+/*
+ * Test internal process constraint.
+ * You can't add a pid to a domain parent if a controller is enabled.
+ */
+static int test_cgcore_internal_process_constraint(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent = NULL, *child = NULL;
+
+	if (cg_test_v1_named)
+		return KSFT_SKIP;
+
+	parent = cg_name(root, "cg_test_parent");
+	child = cg_name(root, "cg_test_parent/cg_test_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (!cg_enter_current(parent))
+		goto cleanup;
+
+	if (!clone_into_cgroup_run_wait(parent))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+	return ret;
+}
+
+static void *dummy_thread_fn(void *arg)
+{
+	return (void *)(size_t)pause();
+}
+
+/*
+ * Test threadgroup migration.
+ * All threads of a process are migrated together.
+ */
+static int test_cgcore_proc_migration(const char *root)
+{
+	int ret = KSFT_FAIL;
+	int t, c_threads = 0, n_threads = 13;
+	char *src = NULL, *dst = NULL;
+	pthread_t threads[n_threads];
+
+	src = cg_name(root, "cg_src");
+	dst = cg_name(root, "cg_dst");
+	if (!src || !dst)
+		goto cleanup;
+
+	if (cg_create(src))
+		goto cleanup;
+	if (cg_create(dst))
+		goto cleanup;
+
+	if (cg_enter_current(src))
+		goto cleanup;
+
+	for (c_threads = 0; c_threads < n_threads; ++c_threads) {
+		if (pthread_create(&threads[c_threads], NULL, dummy_thread_fn, NULL))
+			goto cleanup;
+	}
+
+	cg_enter_current(dst);
+	if (cg_read_lc(dst, CG_THREADS_FILE) != n_threads + 1)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (t = 0; t < c_threads; ++t) {
+		pthread_cancel(threads[t]);
+	}
+
+	for (t = 0; t < c_threads; ++t) {
+		pthread_join(threads[t], NULL);
+	}
+
+	cg_enter_current(root);
+
+	if (dst)
+		cg_destroy(dst);
+	if (src)
+		cg_destroy(src);
+	free(dst);
+	free(src);
+	return ret;
+}
+
+static void *migrating_thread_fn(void *arg)
+{
+	int g, i, n_iterations = 1000;
+	char **grps = arg;
+	char lines[3][PATH_MAX];
+
+	for (g = 1; g < 3; ++g)
+		snprintf(lines[g], sizeof(lines[g]), CG_PATH_FORMAT, grps[g] + strlen(grps[0]));
+
+	for (i = 0; i < n_iterations; ++i) {
+		cg_enter_current_thread(grps[(i % 2) + 1]);
+
+		if (proc_read_strstr(0, 1, "cgroup", lines[(i % 2) + 1]))
+			return (void *)-1;
+	}
+	return NULL;
+}
+
+/*
+ * Test single thread migration.
+ * Threaded cgroups allow successful migration of a thread.
+ */
+static int test_cgcore_thread_migration(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *dom = NULL;
+	char line[PATH_MAX];
+	char *grps[3] = { (char *)root, NULL, NULL };
+	pthread_t thr;
+	void *retval;
+
+	dom = cg_name(root, "cg_dom");
+	grps[1] = cg_name(root, "cg_dom/cg_src");
+	grps[2] = cg_name(root, "cg_dom/cg_dst");
+	if (!grps[1] || !grps[2] || !dom)
+		goto cleanup;
+
+	if (cg_create(dom))
+		goto cleanup;
+	if (cg_create(grps[1]))
+		goto cleanup;
+	if (cg_create(grps[2]))
+		goto cleanup;
+
+	if (!cg_test_v1_named) {
+		if (cg_write(grps[1], "cgroup.type", "threaded"))
+			goto cleanup;
+		if (cg_write(grps[2], "cgroup.type", "threaded"))
+			goto cleanup;
+	}
+
+	if (cg_enter_current(grps[1]))
+		goto cleanup;
+
+	if (pthread_create(&thr, NULL, migrating_thread_fn, grps))
+		goto cleanup;
+
+	if (pthread_join(thr, &retval))
+		goto cleanup;
+
+	if (retval)
+		goto cleanup;
+
+	snprintf(line, sizeof(line), CG_PATH_FORMAT, grps[1] + strlen(grps[0]));
+	if (proc_read_strstr(0, 1, "cgroup", line))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	if (grps[2])
+		cg_destroy(grps[2]);
+	if (grps[1])
+		cg_destroy(grps[1]);
+	if (dom)
+		cg_destroy(dom);
+	free(grps[2]);
+	free(grps[1]);
+	free(dom);
+	return ret;
+}
+
+/*
+ * cgroup migration permission check should be performed based on the
+ * credentials at the time of open instead of write.
+ */
+static int test_cgcore_lesser_euid_open(const char *root)
+{
+	const uid_t test_euid = TEST_UID;
+	int ret = KSFT_FAIL;
+	char *cg_test_a = NULL, *cg_test_b = NULL;
+	char *cg_test_a_procs = NULL, *cg_test_b_procs = NULL;
+	int cg_test_b_procs_fd = -1;
+	uid_t saved_uid;
+
+	cg_test_a = cg_name(root, "cg_test_a");
+	cg_test_b = cg_name(root, "cg_test_b");
+
+	if (!cg_test_a || !cg_test_b)
+		goto cleanup;
+
+	cg_test_a_procs = cg_name(cg_test_a, "cgroup.procs");
+	cg_test_b_procs = cg_name(cg_test_b, "cgroup.procs");
+
+	if (!cg_test_a_procs || !cg_test_b_procs)
+		goto cleanup;
+
+	if (cg_create(cg_test_a) || cg_create(cg_test_b))
+		goto cleanup;
+
+	if (cg_enter_current(cg_test_a))
+		goto cleanup;
+
+	if (chown(cg_test_a_procs, test_euid, -1) ||
+	    chown(cg_test_b_procs, test_euid, -1))
+		goto cleanup;
+
+	saved_uid = geteuid();
+	if (seteuid(test_euid))
+		goto cleanup;
+
+	cg_test_b_procs_fd = open(cg_test_b_procs, O_RDWR);
+
+	if (seteuid(saved_uid))
+		goto cleanup;
+
+	if (cg_test_b_procs_fd < 0)
+		goto cleanup;
+
+	if (write(cg_test_b_procs_fd, "0", 1) >= 0 || errno != EACCES)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	if (cg_test_b_procs_fd >= 0)
+		close(cg_test_b_procs_fd);
+	if (cg_test_b)
+		cg_destroy(cg_test_b);
+	if (cg_test_a)
+		cg_destroy(cg_test_a);
+	free(cg_test_b_procs);
+	free(cg_test_a_procs);
+	free(cg_test_b);
+	free(cg_test_a);
+	return ret;
+}
+
+struct lesser_ns_open_thread_arg {
+	const char	*path;
+	int		fd;
+	int		err;
+};
+
+static int lesser_ns_open_thread_fn(void *arg)
+{
+	struct lesser_ns_open_thread_arg *targ = arg;
+
+	targ->fd = open(targ->path, O_RDWR);
+	targ->err = errno;
+	return 0;
+}
+
+/*
+ * cgroup migration permission check should be performed based on the cgroup
+ * namespace at the time of open instead of write.
+ */
+static int test_cgcore_lesser_ns_open(const char *root)
+{
+	static char stack[65536];
+	const uid_t test_euid = 65534;	/* usually nobody, any !root is fine */
+	int ret = KSFT_FAIL;
+	char *cg_test_a = NULL, *cg_test_b = NULL;
+	char *cg_test_a_procs = NULL, *cg_test_b_procs = NULL;
+	int cg_test_b_procs_fd = -1;
+	struct lesser_ns_open_thread_arg targ = { .fd = -1 };
+	pid_t pid;
+	int status;
+
+	if (!nsdelegate)
+		return KSFT_SKIP;
+
+	cg_test_a = cg_name(root, "cg_test_a");
+	cg_test_b = cg_name(root, "cg_test_b");
+
+	if (!cg_test_a || !cg_test_b)
+		goto cleanup;
+
+	cg_test_a_procs = cg_name(cg_test_a, "cgroup.procs");
+	cg_test_b_procs = cg_name(cg_test_b, "cgroup.procs");
+
+	if (!cg_test_a_procs || !cg_test_b_procs)
+		goto cleanup;
+
+	if (cg_create(cg_test_a) || cg_create(cg_test_b))
+		goto cleanup;
+
+	if (cg_enter_current(cg_test_b))
+		goto cleanup;
+
+	if (chown(cg_test_a_procs, test_euid, -1) ||
+	    chown(cg_test_b_procs, test_euid, -1))
+		goto cleanup;
+
+	targ.path = cg_test_b_procs;
+	pid = clone(lesser_ns_open_thread_fn, stack + sizeof(stack),
+		    CLONE_NEWCGROUP | CLONE_FILES | CLONE_VM | SIGCHLD,
+		    &targ);
+	if (pid < 0)
+		goto cleanup;
+
+	if (waitpid(pid, &status, 0) < 0)
+		goto cleanup;
+
+	if (!WIFEXITED(status))
+		goto cleanup;
+
+	cg_test_b_procs_fd = targ.fd;
+	if (cg_test_b_procs_fd < 0)
+		goto cleanup;
+
+	if (cg_enter_current(cg_test_a))
+		goto cleanup;
+
+	if ((status = write(cg_test_b_procs_fd, "0", 1)) >= 0 || errno != ENOENT)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	if (cg_test_b_procs_fd >= 0)
+		close(cg_test_b_procs_fd);
+	if (cg_test_b)
+		cg_destroy(cg_test_b);
+	if (cg_test_a)
+		cg_destroy(cg_test_a);
+	free(cg_test_b_procs);
+	free(cg_test_a_procs);
+	free(cg_test_b);
+	free(cg_test_a);
+	return ret;
+}
+
+static int setup_named_v1_root(char *root, size_t len, const char *name)
+{
+	char options[PATH_MAX];
+	int r;
+
+	r = snprintf(root, len, "/mnt/cg_selftest");
+	if (r < 0)
+		return r;
+
+	r = snprintf(options, sizeof(options), "none,name=%s", name);
+	if (r < 0)
+		return r;
+
+	r = mkdir(root, 0755);
+	if (r < 0 && errno != EEXIST)
+		return r;
+
+	r = mount("none", root, "cgroup", 0, options);
+	if (r < 0)
+		return r;
+
+	return 0;
+}
+
+static void cleanup_named_v1_root(char *root)
+{
+	if (!cg_test_v1_named)
+		return;
+	umount(root);
+	rmdir(root);
+}
+
+#define T(x) { x, #x }
+struct corecg_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_cgcore_internal_process_constraint),
+	T(test_cgcore_top_down_constraint_enable),
+	T(test_cgcore_top_down_constraint_disable),
+	T(test_cgcore_no_internal_process_constraint_on_threads),
+	T(test_cgcore_parent_becomes_threaded),
+	T(test_cgcore_invalid_domain),
+	T(test_cgcore_populated),
+	T(test_cgcore_proc_migration),
+	T(test_cgcore_thread_migration),
+	T(test_cgcore_destroy),
+	T(test_cgcore_lesser_euid_open),
+	T(test_cgcore_lesser_ns_open),
+};
+#undef T
+
+int main(int argc, char *argv[])
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), &nsdelegate)) {
+		if (setup_named_v1_root(root, sizeof(root), CG_NAMED_NAME))
+			ksft_exit_skip("cgroup v2 isn't mounted and could not setup named v1 hierarchy\n");
+		cg_test_v1_named = true;
+		goto post_v2_setup;
+	}
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
+post_v2_setup:
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	cleanup_named_v1_root(root);
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_cpu.c b/tools/testing/selftests/cgroup/test_cpu.c
new file mode 100644
index 000000000000..c83f05438d7c
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_cpu.c
@@ -0,0 +1,825 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <linux/limits.h>
+#include <sys/param.h>
+#include <sys/sysinfo.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+enum hog_clock_type {
+	// Count elapsed time using the CLOCK_PROCESS_CPUTIME_ID clock.
+	CPU_HOG_CLOCK_PROCESS,
+	// Count elapsed time using system wallclock time.
+	CPU_HOG_CLOCK_WALL,
+};
+
+struct cpu_hogger {
+	char *cgroup;
+	pid_t pid;
+	long usage;
+};
+
+struct cpu_hog_func_param {
+	int nprocs;
+	struct timespec ts;
+	enum hog_clock_type clock_type;
+};
+
+/*
+ * This test creates two nested cgroups with and without enabling
+ * the cpu controller.
+ */
+static int test_cpucg_subtree_control(const char *root)
+{
+	char *parent = NULL, *child = NULL, *parent2 = NULL, *child2 = NULL;
+	int ret = KSFT_FAIL;
+
+	// Create two nested cgroups with the cpu controller enabled.
+	parent = cg_name(root, "cpucg_test_0");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+
+	child = cg_name(parent, "cpucg_test_child");
+	if (!child)
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_read_strstr(child, "cgroup.controllers", "cpu"))
+		goto cleanup;
+
+	// Create two nested cgroups without enabling the cpu controller.
+	parent2 = cg_name(root, "cpucg_test_1");
+	if (!parent2)
+		goto cleanup;
+
+	if (cg_create(parent2))
+		goto cleanup;
+
+	child2 = cg_name(parent2, "cpucg_test_child");
+	if (!child2)
+		goto cleanup;
+
+	if (cg_create(child2))
+		goto cleanup;
+
+	if (!cg_read_strstr(child2, "cgroup.controllers", "cpu"))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(child);
+	free(child);
+	cg_destroy(child2);
+	free(child2);
+	cg_destroy(parent);
+	free(parent);
+	cg_destroy(parent2);
+	free(parent2);
+
+	return ret;
+}
+
+static void *hog_cpu_thread_func(void *arg)
+{
+	while (1)
+		;
+
+	return NULL;
+}
+
+static struct timespec
+timespec_sub(const struct timespec *lhs, const struct timespec *rhs)
+{
+	struct timespec zero = {
+		.tv_sec = 0,
+		.tv_nsec = 0,
+	};
+	struct timespec ret;
+
+	if (lhs->tv_sec < rhs->tv_sec)
+		return zero;
+
+	ret.tv_sec = lhs->tv_sec - rhs->tv_sec;
+
+	if (lhs->tv_nsec < rhs->tv_nsec) {
+		if (ret.tv_sec == 0)
+			return zero;
+
+		ret.tv_sec--;
+		ret.tv_nsec = NSEC_PER_SEC - rhs->tv_nsec + lhs->tv_nsec;
+	} else
+		ret.tv_nsec = lhs->tv_nsec - rhs->tv_nsec;
+
+	return ret;
+}
+
+static int hog_cpus_timed(const char *cgroup, void *arg)
+{
+	const struct cpu_hog_func_param *param =
+		(struct cpu_hog_func_param *)arg;
+	struct timespec ts_run = param->ts;
+	struct timespec ts_remaining = ts_run;
+	struct timespec ts_start;
+	int i, ret;
+
+	ret = clock_gettime(CLOCK_MONOTONIC, &ts_start);
+	if (ret != 0)
+		return ret;
+
+	for (i = 0; i < param->nprocs; i++) {
+		pthread_t tid;
+
+		ret = pthread_create(&tid, NULL, &hog_cpu_thread_func, NULL);
+		if (ret != 0)
+			return ret;
+	}
+
+	while (ts_remaining.tv_sec > 0 || ts_remaining.tv_nsec > 0) {
+		struct timespec ts_total;
+
+		ret = nanosleep(&ts_remaining, NULL);
+		if (ret && errno != EINTR)
+			return ret;
+
+		if (param->clock_type == CPU_HOG_CLOCK_PROCESS) {
+			ret = clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts_total);
+			if (ret != 0)
+				return ret;
+		} else {
+			struct timespec ts_current;
+
+			ret = clock_gettime(CLOCK_MONOTONIC, &ts_current);
+			if (ret != 0)
+				return ret;
+
+			ts_total = timespec_sub(&ts_current, &ts_start);
+		}
+
+		ts_remaining = timespec_sub(&ts_run, &ts_total);
+	}
+
+	return 0;
+}
+
+/*
+ * Creates a cpu cgroup, burns a CPU for a few quanta, and verifies that
+ * cpu.stat shows the expected output.
+ */
+static int test_cpucg_stats(const char *root)
+{
+	int ret = KSFT_FAIL;
+	long usage_usec, user_usec, system_usec;
+	long usage_seconds = 2;
+	long expected_usage_usec = usage_seconds * USEC_PER_SEC;
+	char *cpucg;
+
+	cpucg = cg_name(root, "cpucg_test");
+	if (!cpucg)
+		goto cleanup;
+
+	if (cg_create(cpucg))
+		goto cleanup;
+
+	usage_usec = cg_read_key_long(cpucg, "cpu.stat", "usage_usec");
+	user_usec = cg_read_key_long(cpucg, "cpu.stat", "user_usec");
+	system_usec = cg_read_key_long(cpucg, "cpu.stat", "system_usec");
+	if (usage_usec != 0 || user_usec != 0 || system_usec != 0)
+		goto cleanup;
+
+	struct cpu_hog_func_param param = {
+		.nprocs = 1,
+		.ts = {
+			.tv_sec = usage_seconds,
+			.tv_nsec = 0,
+		},
+		.clock_type = CPU_HOG_CLOCK_PROCESS,
+	};
+	if (cg_run(cpucg, hog_cpus_timed, (void *)&param))
+		goto cleanup;
+
+	usage_usec = cg_read_key_long(cpucg, "cpu.stat", "usage_usec");
+	user_usec = cg_read_key_long(cpucg, "cpu.stat", "user_usec");
+	if (user_usec <= 0)
+		goto cleanup;
+
+	if (!values_close_report(usage_usec, expected_usage_usec, 1))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(cpucg);
+	free(cpucg);
+
+	return ret;
+}
+
+/*
+ * Creates a nice process that consumes CPU and checks that the elapsed
+ * usertime in the cgroup is close to the expected time.
+ */
+static int test_cpucg_nice(const char *root)
+{
+	int ret = KSFT_FAIL;
+	int status;
+	long user_usec, nice_usec;
+	long usage_seconds = 2;
+	long expected_nice_usec = usage_seconds * USEC_PER_SEC;
+	char *cpucg;
+	pid_t pid;
+
+	cpucg = cg_name(root, "cpucg_test");
+	if (!cpucg)
+		goto cleanup;
+
+	if (cg_create(cpucg))
+		goto cleanup;
+
+	user_usec = cg_read_key_long(cpucg, "cpu.stat", "user_usec");
+	nice_usec = cg_read_key_long(cpucg, "cpu.stat", "nice_usec");
+	if (nice_usec == -1)
+		ret = KSFT_SKIP;
+	if (user_usec != 0 || nice_usec != 0)
+		goto cleanup;
+
+	/*
+	 * We fork here to create a new process that can be niced without
+	 * polluting the nice value of other selftests
+	 */
+	pid = fork();
+	if (pid < 0) {
+		goto cleanup;
+	} else if (pid == 0) {
+		struct cpu_hog_func_param param = {
+			.nprocs = 1,
+			.ts = {
+				.tv_sec = usage_seconds,
+				.tv_nsec = 0,
+			},
+			.clock_type = CPU_HOG_CLOCK_PROCESS,
+		};
+		char buf[64];
+		snprintf(buf, sizeof(buf), "%d", getpid());
+		if (cg_write(cpucg, "cgroup.procs", buf))
+			goto cleanup;
+
+		/* Try to keep niced CPU usage as constrained to hog_cpu as possible */
+		nice(1);
+		hog_cpus_timed(cpucg, &param);
+		exit(0);
+	} else {
+		waitpid(pid, &status, 0);
+		if (!WIFEXITED(status))
+			goto cleanup;
+
+		user_usec = cg_read_key_long(cpucg, "cpu.stat", "user_usec");
+		nice_usec = cg_read_key_long(cpucg, "cpu.stat", "nice_usec");
+		if (!values_close_report(nice_usec, expected_nice_usec, 1))
+			goto cleanup;
+
+		ret = KSFT_PASS;
+	}
+
+cleanup:
+	cg_destroy(cpucg);
+	free(cpucg);
+
+	return ret;
+}
+
+static int
+run_cpucg_weight_test(
+		const char *root,
+		pid_t (*spawn_child)(const struct cpu_hogger *child),
+		int (*validate)(const struct cpu_hogger *children, int num_children))
+{
+	int ret = KSFT_FAIL, i;
+	char *parent = NULL;
+	struct cpu_hogger children[3] = {};
+
+	parent = cg_name(root, "cpucg_test_0");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		children[i].cgroup = cg_name_indexed(parent, "cpucg_child", i);
+		if (!children[i].cgroup)
+			goto cleanup;
+
+		if (cg_create(children[i].cgroup))
+			goto cleanup;
+
+		if (cg_write_numeric(children[i].cgroup, "cpu.weight",
+					50 * (i + 1)))
+			goto cleanup;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		pid_t pid = spawn_child(&children[i]);
+		if (pid <= 0)
+			goto cleanup;
+		children[i].pid = pid;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		int retcode;
+
+		waitpid(children[i].pid, &retcode, 0);
+		if (!WIFEXITED(retcode))
+			goto cleanup;
+		if (WEXITSTATUS(retcode))
+			goto cleanup;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(children); i++)
+		children[i].usage = cg_read_key_long(children[i].cgroup,
+				"cpu.stat", "usage_usec");
+
+	if (validate(children, ARRAY_SIZE(children)))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+cleanup:
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		cg_destroy(children[i].cgroup);
+		free(children[i].cgroup);
+	}
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+static pid_t weight_hog_ncpus(const struct cpu_hogger *child, int ncpus)
+{
+	long usage_seconds = 10;
+	struct cpu_hog_func_param param = {
+		.nprocs = ncpus,
+		.ts = {
+			.tv_sec = usage_seconds,
+			.tv_nsec = 0,
+		},
+		.clock_type = CPU_HOG_CLOCK_WALL,
+	};
+	return cg_run_nowait(child->cgroup, hog_cpus_timed, (void *)&param);
+}
+
+static pid_t weight_hog_all_cpus(const struct cpu_hogger *child)
+{
+	return weight_hog_ncpus(child, get_nprocs());
+}
+
+static int
+overprovision_validate(const struct cpu_hogger *children, int num_children)
+{
+	int ret = KSFT_FAIL, i;
+
+	for (i = 0; i < num_children - 1; i++) {
+		long delta;
+
+		if (children[i + 1].usage <= children[i].usage)
+			goto cleanup;
+
+		delta = children[i + 1].usage - children[i].usage;
+		if (!values_close_report(delta, children[0].usage, 35))
+			goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+cleanup:
+	return ret;
+}
+
+/*
+ * First, this test creates the following hierarchy:
+ * A
+ * A/B     cpu.weight = 50
+ * A/C     cpu.weight = 100
+ * A/D     cpu.weight = 150
+ *
+ * A separate process is then created for each child cgroup which spawns as
+ * many threads as there are cores, and hogs each CPU as much as possible
+ * for some time interval.
+ *
+ * Once all of the children have exited, we verify that each child cgroup
+ * was given proportional runtime as informed by their cpu.weight.
+ */
+static int test_cpucg_weight_overprovisioned(const char *root)
+{
+	return run_cpucg_weight_test(root, weight_hog_all_cpus,
+			overprovision_validate);
+}
+
+static pid_t weight_hog_one_cpu(const struct cpu_hogger *child)
+{
+	return weight_hog_ncpus(child, 1);
+}
+
+static int
+underprovision_validate(const struct cpu_hogger *children, int num_children)
+{
+	int ret = KSFT_FAIL, i;
+
+	for (i = 0; i < num_children - 1; i++) {
+		if (!values_close_report(children[i + 1].usage, children[0].usage, 15))
+			goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+cleanup:
+	return ret;
+}
+
+/*
+ * First, this test creates the following hierarchy:
+ * A
+ * A/B     cpu.weight = 50
+ * A/C     cpu.weight = 100
+ * A/D     cpu.weight = 150
+ *
+ * A separate process is then created for each child cgroup which spawns a
+ * single thread that hogs a CPU. The testcase is only run on systems that
+ * have at least one core per-thread in the child processes.
+ *
+ * Once all of the children have exited, we verify that each child cgroup
+ * had roughly the same runtime despite having different cpu.weight.
+ */
+static int test_cpucg_weight_underprovisioned(const char *root)
+{
+	// Only run the test if there are enough cores to avoid overprovisioning
+	// the system.
+	if (get_nprocs() < 4)
+		return KSFT_SKIP;
+
+	return run_cpucg_weight_test(root, weight_hog_one_cpu,
+			underprovision_validate);
+}
+
+static int
+run_cpucg_nested_weight_test(const char *root, bool overprovisioned)
+{
+	int ret = KSFT_FAIL, i;
+	char *parent = NULL, *child = NULL;
+	struct cpu_hogger leaf[3] = {};
+	long nested_leaf_usage, child_usage;
+	int nprocs = get_nprocs();
+
+	if (!overprovisioned) {
+		if (nprocs < 4)
+			/*
+			 * Only run the test if there are enough cores to avoid overprovisioning
+			 * the system.
+			 */
+			return KSFT_SKIP;
+		nprocs /= 4;
+	}
+
+	parent = cg_name(root, "cpucg_test");
+	child = cg_name(parent, "cpucg_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+	if (cg_write(parent, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+	if (cg_write(child, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+	if (cg_write(child, "cpu.weight", "1000"))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(leaf); i++) {
+		const char *ancestor;
+		long weight;
+
+		if (i == 0) {
+			ancestor = parent;
+			weight = 1000;
+		} else {
+			ancestor = child;
+			weight = 5000;
+		}
+		leaf[i].cgroup = cg_name_indexed(ancestor, "cpucg_leaf", i);
+		if (!leaf[i].cgroup)
+			goto cleanup;
+
+		if (cg_create(leaf[i].cgroup))
+			goto cleanup;
+
+		if (cg_write_numeric(leaf[i].cgroup, "cpu.weight", weight))
+			goto cleanup;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(leaf); i++) {
+		pid_t pid;
+		struct cpu_hog_func_param param = {
+			.nprocs = nprocs,
+			.ts = {
+				.tv_sec = 10,
+				.tv_nsec = 0,
+			},
+			.clock_type = CPU_HOG_CLOCK_WALL,
+		};
+
+		pid = cg_run_nowait(leaf[i].cgroup, hog_cpus_timed,
+				(void *)&param);
+		if (pid <= 0)
+			goto cleanup;
+		leaf[i].pid = pid;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(leaf); i++) {
+		int retcode;
+
+		waitpid(leaf[i].pid, &retcode, 0);
+		if (!WIFEXITED(retcode))
+			goto cleanup;
+		if (WEXITSTATUS(retcode))
+			goto cleanup;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(leaf); i++) {
+		leaf[i].usage = cg_read_key_long(leaf[i].cgroup,
+				"cpu.stat", "usage_usec");
+		if (leaf[i].usage <= 0)
+			goto cleanup;
+	}
+
+	nested_leaf_usage = leaf[1].usage + leaf[2].usage;
+	if (overprovisioned) {
+		if (!values_close_report(leaf[0].usage, nested_leaf_usage, 15))
+			goto cleanup;
+	} else if (!values_close_report(leaf[0].usage * 2, nested_leaf_usage, 15))
+		goto cleanup;
+
+
+	child_usage = cg_read_key_long(child, "cpu.stat", "usage_usec");
+	if (child_usage <= 0)
+		goto cleanup;
+	if (!values_close_report(child_usage, nested_leaf_usage, 1))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+cleanup:
+	for (i = 0; i < ARRAY_SIZE(leaf); i++) {
+		cg_destroy(leaf[i].cgroup);
+		free(leaf[i].cgroup);
+	}
+	cg_destroy(child);
+	free(child);
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+/*
+ * First, this test creates the following hierarchy:
+ * A
+ * A/B     cpu.weight = 1000
+ * A/C     cpu.weight = 1000
+ * A/C/D   cpu.weight = 5000
+ * A/C/E   cpu.weight = 5000
+ *
+ * A separate process is then created for each leaf, which spawn nproc threads
+ * that burn a CPU for a few seconds.
+ *
+ * Once all of those processes have exited, we verify that each of the leaf
+ * cgroups have roughly the same usage from cpu.stat.
+ */
+static int
+test_cpucg_nested_weight_overprovisioned(const char *root)
+{
+	return run_cpucg_nested_weight_test(root, true);
+}
+
+/*
+ * First, this test creates the following hierarchy:
+ * A
+ * A/B     cpu.weight = 1000
+ * A/C     cpu.weight = 1000
+ * A/C/D   cpu.weight = 5000
+ * A/C/E   cpu.weight = 5000
+ *
+ * A separate process is then created for each leaf, which nproc / 4 threads
+ * that burns a CPU for a few seconds.
+ *
+ * Once all of those processes have exited, we verify that each of the leaf
+ * cgroups have roughly the same usage from cpu.stat.
+ */
+static int
+test_cpucg_nested_weight_underprovisioned(const char *root)
+{
+	return run_cpucg_nested_weight_test(root, false);
+}
+
+/*
+ * This test creates a cgroup with some maximum value within a period, and
+ * verifies that a process in the cgroup is not overscheduled.
+ */
+static int test_cpucg_max(const char *root)
+{
+	int ret = KSFT_FAIL;
+	long quota_usec = 1000;
+	long default_period_usec = 100000; /* cpu.max's default period */
+	long duration_seconds = 1;
+
+	long duration_usec = duration_seconds * USEC_PER_SEC;
+	long usage_usec, n_periods, remainder_usec, expected_usage_usec;
+	char *cpucg;
+	char quota_buf[32];
+
+	snprintf(quota_buf, sizeof(quota_buf), "%ld", quota_usec);
+
+	cpucg = cg_name(root, "cpucg_test");
+	if (!cpucg)
+		goto cleanup;
+
+	if (cg_create(cpucg))
+		goto cleanup;
+
+	if (cg_write(cpucg, "cpu.max", quota_buf))
+		goto cleanup;
+
+	struct cpu_hog_func_param param = {
+		.nprocs = 1,
+		.ts = {
+			.tv_sec = duration_seconds,
+			.tv_nsec = 0,
+		},
+		.clock_type = CPU_HOG_CLOCK_WALL,
+	};
+	if (cg_run(cpucg, hog_cpus_timed, (void *)&param))
+		goto cleanup;
+
+	usage_usec = cg_read_key_long(cpucg, "cpu.stat", "usage_usec");
+	if (usage_usec <= 0)
+		goto cleanup;
+
+	/*
+	 * The following calculation applies only since
+	 * the cpu hog is set to run as per wall-clock time
+	 */
+	n_periods = duration_usec / default_period_usec;
+	remainder_usec = duration_usec - n_periods * default_period_usec;
+	expected_usage_usec
+		= n_periods * quota_usec + MIN(remainder_usec, quota_usec);
+
+	if (!values_close_report(usage_usec, expected_usage_usec, 10))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(cpucg);
+	free(cpucg);
+
+	return ret;
+}
+
+/*
+ * This test verifies that a process inside of a nested cgroup whose parent
+ * group has a cpu.max value set, is properly throttled.
+ */
+static int test_cpucg_max_nested(const char *root)
+{
+	int ret = KSFT_FAIL;
+	long quota_usec = 1000;
+	long default_period_usec = 100000; /* cpu.max's default period */
+	long duration_seconds = 1;
+
+	long duration_usec = duration_seconds * USEC_PER_SEC;
+	long usage_usec, n_periods, remainder_usec, expected_usage_usec;
+	char *parent, *child;
+	char quota_buf[32];
+
+	snprintf(quota_buf, sizeof(quota_buf), "%ld", quota_usec);
+
+	parent = cg_name(root, "cpucg_parent");
+	child = cg_name(parent, "cpucg_child");
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpu"))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cpu.max", quota_buf))
+		goto cleanup;
+
+	struct cpu_hog_func_param param = {
+		.nprocs = 1,
+		.ts = {
+			.tv_sec = duration_seconds,
+			.tv_nsec = 0,
+		},
+		.clock_type = CPU_HOG_CLOCK_WALL,
+	};
+	if (cg_run(child, hog_cpus_timed, (void *)&param))
+		goto cleanup;
+
+	usage_usec = cg_read_key_long(child, "cpu.stat", "usage_usec");
+	if (usage_usec <= 0)
+		goto cleanup;
+
+	/*
+	 * The following calculation applies only since
+	 * the cpu hog is set to run as per wall-clock time
+	 */
+	n_periods = duration_usec / default_period_usec;
+	remainder_usec = duration_usec - n_periods * default_period_usec;
+	expected_usage_usec
+		= n_periods * quota_usec + MIN(remainder_usec, quota_usec);
+
+	if (!values_close_report(usage_usec, expected_usage_usec, 10))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(child);
+	free(child);
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct cpucg_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_cpucg_subtree_control),
+	T(test_cpucg_stats),
+	T(test_cpucg_nice),
+	T(test_cpucg_weight_overprovisioned),
+	T(test_cpucg_weight_underprovisioned),
+	T(test_cpucg_nested_weight_overprovisioned),
+	T(test_cpucg_nested_weight_underprovisioned),
+	T(test_cpucg_max),
+	T(test_cpucg_max_nested),
+};
+#undef T
+
+int main(int argc, char *argv[])
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "cpu"))
+		if (cg_write(root, "cgroup.subtree_control", "+cpu"))
+			ksft_exit_skip("Failed to set cpu controller\n");
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_cpuset.c b/tools/testing/selftests/cgroup/test_cpuset.c
new file mode 100644
index 000000000000..c5cf8b56ceb8
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_cpuset.c
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/limits.h>
+#include <signal.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+static int idle_process_fn(const char *cgroup, void *arg)
+{
+	(void)pause();
+	return 0;
+}
+
+static int do_migration_fn(const char *cgroup, void *arg)
+{
+	int object_pid = (int)(size_t)arg;
+
+	if (setuid(TEST_UID))
+		return EXIT_FAILURE;
+
+	// XXX checking /proc/$pid/cgroup would be quicker than wait
+	if (cg_enter(cgroup, object_pid) ||
+	    cg_wait_for_proc_count(cgroup, 1))
+		return EXIT_FAILURE;
+
+	return EXIT_SUCCESS;
+}
+
+static int do_controller_fn(const char *cgroup, void *arg)
+{
+	const char *child = cgroup;
+	const char *parent = arg;
+
+	if (setuid(TEST_UID))
+		return EXIT_FAILURE;
+
+	if (!cg_read_strstr(child, "cgroup.controllers", "cpuset"))
+		return EXIT_FAILURE;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpuset"))
+		return EXIT_FAILURE;
+
+	if (cg_read_strstr(child, "cgroup.controllers", "cpuset"))
+		return EXIT_FAILURE;
+
+	if (cg_write(parent, "cgroup.subtree_control", "-cpuset"))
+		return EXIT_FAILURE;
+
+	if (!cg_read_strstr(child, "cgroup.controllers", "cpuset"))
+		return EXIT_FAILURE;
+
+	return EXIT_SUCCESS;
+}
+
+/*
+ * Migrate a process between two sibling cgroups.
+ * The success should only depend on the parent cgroup permissions and not the
+ * migrated process itself (cpuset controller is in place because it uses
+ * security_task_setscheduler() in cgroup v1).
+ *
+ * Deliberately don't set cpuset.cpus in children to avoid definining migration
+ * permissions between two different cpusets.
+ */
+static int test_cpuset_perms_object(const char *root, bool allow)
+{
+	char *parent = NULL, *child_src = NULL, *child_dst = NULL;
+	char *parent_procs = NULL, *child_src_procs = NULL, *child_dst_procs = NULL;
+	const uid_t test_euid = TEST_UID;
+	int object_pid = 0;
+	int ret = KSFT_FAIL;
+
+	parent = cg_name(root, "cpuset_test_0");
+	if (!parent)
+		goto cleanup;
+	parent_procs = cg_name(parent, "cgroup.procs");
+	if (!parent_procs)
+		goto cleanup;
+	if (cg_create(parent))
+		goto cleanup;
+
+	child_src = cg_name(parent, "cpuset_test_1");
+	if (!child_src)
+		goto cleanup;
+	child_src_procs = cg_name(child_src, "cgroup.procs");
+	if (!child_src_procs)
+		goto cleanup;
+	if (cg_create(child_src))
+		goto cleanup;
+
+	child_dst = cg_name(parent, "cpuset_test_2");
+	if (!child_dst)
+		goto cleanup;
+	child_dst_procs = cg_name(child_dst, "cgroup.procs");
+	if (!child_dst_procs)
+		goto cleanup;
+	if (cg_create(child_dst))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+cpuset"))
+		goto cleanup;
+
+	if (cg_read_strstr(child_src, "cgroup.controllers", "cpuset") ||
+	    cg_read_strstr(child_dst, "cgroup.controllers", "cpuset"))
+		goto cleanup;
+
+	/* Enable permissions along src->dst tree path */
+	if (chown(child_src_procs, test_euid, -1) ||
+	    chown(child_dst_procs, test_euid, -1))
+		goto cleanup;
+
+	if (allow && chown(parent_procs, test_euid, -1))
+		goto cleanup;
+
+	/* Fork a privileged child as a test object */
+	object_pid = cg_run_nowait(child_src, idle_process_fn, NULL);
+	if (object_pid < 0)
+		goto cleanup;
+
+	/* Carry out migration in a child process that can drop all privileges
+	 * (including capabilities), the main process must remain privileged for
+	 * cleanup.
+	 * Child process's cgroup is irrelevant but we place it into child_dst
+	 * as hacky way to pass information about migration target to the child.
+	 */
+	if (allow ^ (cg_run(child_dst, do_migration_fn, (void *)(size_t)object_pid) == EXIT_SUCCESS))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (object_pid > 0) {
+		(void)kill(object_pid, SIGTERM);
+		(void)clone_reap(object_pid, WEXITED);
+	}
+
+	cg_destroy(child_dst);
+	free(child_dst_procs);
+	free(child_dst);
+
+	cg_destroy(child_src);
+	free(child_src_procs);
+	free(child_src);
+
+	cg_destroy(parent);
+	free(parent_procs);
+	free(parent);
+
+	return ret;
+}
+
+static int test_cpuset_perms_object_allow(const char *root)
+{
+	return test_cpuset_perms_object(root, true);
+}
+
+static int test_cpuset_perms_object_deny(const char *root)
+{
+	return test_cpuset_perms_object(root, false);
+}
+
+/*
+ * Migrate a process between parent and child implicitely
+ * Implicit migration happens when a controller is enabled/disabled.
+ *
+ */
+static int test_cpuset_perms_subtree(const char *root)
+{
+	char *parent = NULL, *child = NULL;
+	char *parent_procs = NULL, *parent_subctl = NULL, *child_procs = NULL;
+	const uid_t test_euid = TEST_UID;
+	int object_pid = 0;
+	int ret = KSFT_FAIL;
+
+	parent = cg_name(root, "cpuset_test_0");
+	if (!parent)
+		goto cleanup;
+	parent_procs = cg_name(parent, "cgroup.procs");
+	if (!parent_procs)
+		goto cleanup;
+	parent_subctl = cg_name(parent, "cgroup.subtree_control");
+	if (!parent_subctl)
+		goto cleanup;
+	if (cg_create(parent))
+		goto cleanup;
+
+	child = cg_name(parent, "cpuset_test_1");
+	if (!child)
+		goto cleanup;
+	child_procs = cg_name(child, "cgroup.procs");
+	if (!child_procs)
+		goto cleanup;
+	if (cg_create(child))
+		goto cleanup;
+
+	/* Enable permissions as in a delegated subtree */
+	if (chown(parent_procs, test_euid, -1) ||
+	    chown(parent_subctl, test_euid, -1) ||
+	    chown(child_procs, test_euid, -1))
+		goto cleanup;
+
+	/* Put a privileged child in the subtree and modify controller state
+	 * from an unprivileged process, the main process remains privileged
+	 * for cleanup.
+	 * The unprivileged child runs in subtree too to avoid parent and
+	 * internal-node constraing violation.
+	 */
+	object_pid = cg_run_nowait(child, idle_process_fn, NULL);
+	if (object_pid < 0)
+		goto cleanup;
+
+	if (cg_run(child, do_controller_fn, parent) != EXIT_SUCCESS)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (object_pid > 0) {
+		(void)kill(object_pid, SIGTERM);
+		(void)clone_reap(object_pid, WEXITED);
+	}
+
+	cg_destroy(child);
+	free(child_procs);
+	free(child);
+
+	cg_destroy(parent);
+	free(parent_subctl);
+	free(parent_procs);
+	free(parent);
+
+	return ret;
+}
+
+
+#define T(x) { x, #x }
+struct cpuset_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_cpuset_perms_object_allow),
+	T(test_cpuset_perms_object_deny),
+	T(test_cpuset_perms_subtree),
+};
+#undef T
+
+int main(int argc, char *argv[])
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "cpuset"))
+		if (cg_write(root, "cgroup.subtree_control", "+cpuset"))
+			ksft_exit_skip("Failed to set cpuset controller\n");
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_cpuset_prs.sh b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
new file mode 100755
index 000000000000..a17256d9f88a
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_cpuset_prs.sh
@@ -0,0 +1,1193 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test for cpuset v2 partition root state (PRS)
+#
+# The sched verbose flag can be optionally set so that the console log
+# can be examined for the correct setting of scheduling domain.
+#
+
+skip_test() {
+	echo "$1"
+	echo "Test SKIPPED"
+	exit 4 # ksft_skip
+}
+
+[[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!"
+
+
+# Get wait_inotify location
+WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify
+
+# Find cgroup v2 mount point
+CGROUP2=$(mount -t cgroup2 | head -1 | awk -e '{print $3}')
+[[ -n "$CGROUP2" ]] || skip_test "Cgroup v2 mount point not found!"
+SUBPARTS_CPUS=$CGROUP2/.__DEBUG__.cpuset.cpus.subpartitions
+CPULIST=$(cat $CGROUP2/cpuset.cpus.effective)
+
+NR_CPUS=$(lscpu | grep "^CPU(s):" | sed -e "s/.*:[[:space:]]*//")
+[[ $NR_CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!"
+
+# Check to see if /dev/console exists and is writable
+if [[ -c /dev/console && -w /dev/console ]]
+then
+	CONSOLE=/dev/console
+else
+	CONSOLE=/dev/null
+fi
+
+# Set verbose flag and delay factor
+PROG=$1
+VERBOSE=0
+DELAY_FACTOR=1
+SCHED_DEBUG=
+while [[ "$1" = -* ]]
+do
+	case "$1" in
+		-v) ((VERBOSE++))
+		    # Enable sched/verbose can slow thing down
+		    [[ $DELAY_FACTOR -eq 1 ]] &&
+			DELAY_FACTOR=2
+		    ;;
+		-d) DELAY_FACTOR=$2
+		    shift
+		    ;;
+		*)  echo "Usage: $PROG [-v] [-d <delay-factor>"
+		    exit
+		    ;;
+	esac
+	shift
+done
+
+# Set sched verbose flag if available when "-v" option is specified
+if [[ $VERBOSE -gt 0 && -d /sys/kernel/debug/sched ]]
+then
+	# Used to restore the original setting during cleanup
+	SCHED_DEBUG=$(cat /sys/kernel/debug/sched/verbose)
+	echo Y > /sys/kernel/debug/sched/verbose
+fi
+
+cd $CGROUP2
+echo +cpuset > cgroup.subtree_control
+
+#
+# If cpuset has been set up and used in child cgroups, we may not be able to
+# create partition under root cgroup because of the CPU exclusivity rule.
+# So we are going to skip the test if this is the case.
+#
+[[ -d test ]] || mkdir test
+echo 0-6 > test/cpuset.cpus
+echo root > test/cpuset.cpus.partition
+cat test/cpuset.cpus.partition | grep -q invalid
+RESULT=$?
+echo member > test/cpuset.cpus.partition
+echo "" > test/cpuset.cpus
+[[ $RESULT -eq 0 ]] && skip_test "Child cgroups are using cpuset!"
+
+#
+# If isolated CPUs have been reserved at boot time (as shown in
+# cpuset.cpus.isolated), these isolated CPUs should be outside of CPUs 0-8
+# that will be used by this script for testing purpose. If not, some of
+# the tests may fail incorrectly. Wait a bit and retry again just in case
+# these isolated CPUs are leftover from previous run and have just been
+# cleaned up earlier in this script.
+#
+# These pre-isolated CPUs should stay in an isolated state throughout the
+# testing process for now.
+#
+BOOT_ISOLCPUS=$(cat $CGROUP2/cpuset.cpus.isolated)
+[[ -n "$BOOT_ISOLCPUS" ]] && {
+	sleep 0.5
+	BOOT_ISOLCPUS=$(cat $CGROUP2/cpuset.cpus.isolated)
+}
+if [[ -n "$BOOT_ISOLCPUS" ]]
+then
+	[[ $(echo $BOOT_ISOLCPUS | sed -e "s/[,-].*//") -le 8 ]] &&
+		skip_test "Pre-isolated CPUs ($BOOT_ISOLCPUS) overlap CPUs to be tested"
+	echo "Pre-isolated CPUs: $BOOT_ISOLCPUS"
+fi
+
+cleanup()
+{
+	online_cpus
+	cd $CGROUP2
+	rmdir A1/A2/A3 A1/A2 A1 B1 test/A1 test/B1 test > /dev/null 2>&1
+	rmdir rtest/p1/c11 rtest/p1/c12 rtest/p2/c21 \
+	      rtest/p2/c22 rtest/p1 rtest/p2 rtest > /dev/null 2>&1
+	[[ -n "$SCHED_DEBUG" ]] &&
+		echo "$SCHED_DEBUG" > /sys/kernel/debug/sched/verbose
+}
+
+# Pause in ms
+pause()
+{
+	DELAY=$1
+	LOOP=0
+	while [[ $LOOP -lt $DELAY_FACTOR ]]
+	do
+		sleep $DELAY
+		((LOOP++))
+	done
+	return 0
+}
+
+console_msg()
+{
+	MSG=$1
+	echo "$MSG"
+	echo "" > $CONSOLE
+	echo "$MSG" > $CONSOLE
+	pause 0.01
+}
+
+test_partition()
+{
+	EXPECTED_VAL=$1
+	echo $EXPECTED_VAL > cpuset.cpus.partition
+	[[ $? -eq 0 ]] || exit 1
+	ACTUAL_VAL=$(cat cpuset.cpus.partition)
+	[[ $ACTUAL_VAL != $EXPECTED_VAL ]] && {
+		echo "cpuset.cpus.partition: expect $EXPECTED_VAL, found $ACTUAL_VAL"
+		echo "Test FAILED"
+		exit 1
+	}
+}
+
+test_effective_cpus()
+{
+	EXPECTED_VAL=$1
+	ACTUAL_VAL=$(cat cpuset.cpus.effective)
+	[[ "$ACTUAL_VAL" != "$EXPECTED_VAL" ]] && {
+		echo "cpuset.cpus.effective: expect '$EXPECTED_VAL', found '$ACTUAL_VAL'"
+		echo "Test FAILED"
+		exit 1
+	}
+}
+
+# Adding current process to cgroup.procs as a test
+test_add_proc()
+{
+	OUTSTR="$1"
+	ERRMSG=$((echo $$ > cgroup.procs) |& cat)
+	echo $ERRMSG | grep -q "$OUTSTR"
+	[[ $? -ne 0 ]] && {
+		echo "cgroup.procs: expect '$OUTSTR', got '$ERRMSG'"
+		echo "Test FAILED"
+		exit 1
+	}
+	echo $$ > $CGROUP2/cgroup.procs	# Move out the task
+}
+
+#
+# Cpuset controller state transition test matrix.
+#
+# Cgroup test hierarchy
+#
+#	      root
+#	        |
+#	 +------+------+
+#	 |             |
+#	 A1            B1
+#	 |
+#	 A2
+#	 |
+#	 A3
+#
+#  P<v> = set cpus.partition (0:member, 1:root, 2:isolated)
+#  C<l> = add cpu-list to cpuset.cpus
+#  X<l> = add cpu-list to cpuset.cpus.exclusive
+#  S<p> = use prefix in subtree_control
+#  T    = put a task into cgroup
+#  CX<l> = add cpu-list to both cpuset.cpus and cpuset.cpus.exclusive
+#  O<c>=<v> = Write <v> to CPU online file of <c>
+#
+# ECPUs    - effective CPUs of cpusets
+# Pstate   - partition root state
+# ISOLCPUS - isolated CPUs (<icpus>[,<icpus2>])
+#
+# Note that if there are 2 fields in ISOLCPUS, the first one is for
+# sched-debug matching which includes offline CPUs and single-CPU partitions
+# while the second one is for matching cpuset.cpus.isolated.
+#
+SETUP_A123_PARTITIONS="C1-3:P1:S+ C2-3:P1:S+ C3:P1"
+TEST_MATRIX=(
+	#  old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate ISOLCPUS
+	#  ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ --------
+	"   C0-1     .      .    C2-3    S+    C4-5     .      .     0 A2:0-1"
+	"   C0-1     .      .    C2-3    P1      .      .      .     0 "
+	"   C0-1     .      .    C2-3   P1:S+ C0-1:P1   .      .     0 "
+	"   C0-1     .      .    C2-3   P1:S+  C1:P1    .      .     0 "
+	"  C0-1:S+   .      .    C2-3     .      .      .     P1     0 "
+	"  C0-1:P1   .      .    C2-3    S+     C1      .      .     0 "
+	"  C0-1:P1   .      .    C2-3    S+    C1:P1    .      .     0 "
+	"  C0-1:P1   .      .    C2-3    S+    C1:P1    .     P1     0 "
+	"  C0-1:P1   .      .    C2-3   C4-5     .      .      .     0 A1:4-5"
+	"  C0-1:P1   .      .    C2-3  S+:C4-5   .      .      .     0 A1:4-5"
+	"   C0-1     .      .   C2-3:P1   .      .      .     C2     0 "
+	"   C0-1     .      .   C2-3:P1   .      .      .    C4-5    0 B1:4-5"
+	"C0-3:P1:S+ C2-3:P1 .      .      .      .      .      .     0 A1:0-1|A2:2-3|XA2:2-3"
+	"C0-3:P1:S+ C2-3:P1 .      .     C1-3    .      .      .     0 A1:1|A2:2-3|XA2:2-3"
+	"C2-3:P1:S+  C3:P1  .      .     C3      .      .      .     0 A1:|A2:3|XA2:3 A1:P1|A2:P1"
+	"C2-3:P1:S+  C3:P1  .      .     C3      P0     .      .     0 A1:3|A2:3 A1:P1|A2:P0"
+	"C2-3:P1:S+  C2:P1  .      .     C2-4    .      .      .     0 A1:3-4|A2:2"
+	"C2-3:P1:S+  C3:P1  .      .     C3      .      .     C0-2   0 A1:|B1:0-2 A1:P1|A2:P1"
+	"$SETUP_A123_PARTITIONS    .     C2-3    .      .      .     0 A1:|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+
+	# CPU offlining cases:
+	"   C0-1     .      .    C2-3    S+    C4-5     .     O2=0   0 A1:0-1|B1:3"
+	"C0-3:P1:S+ C2-3:P1 .      .     O2=0    .      .      .     0 A1:0-1|A2:3"
+	"C0-3:P1:S+ C2-3:P1 .      .     O2=0   O2=1    .      .     0 A1:0-1|A2:2-3"
+	"C0-3:P1:S+ C2-3:P1 .      .     O1=0    .      .      .     0 A1:0|A2:2-3"
+	"C0-3:P1:S+ C2-3:P1 .      .     O1=0   O1=1    .      .     0 A1:0-1|A2:2-3"
+	"C2-3:P1:S+  C3:P1  .      .     O3=0   O3=1    .      .     0 A1:2|A2:3 A1:P1|A2:P1"
+	"C2-3:P1:S+  C3:P2  .      .     O3=0   O3=1    .      .     0 A1:2|A2:3 A1:P1|A2:P2"
+	"C2-3:P1:S+  C3:P1  .      .     O2=0   O2=1    .      .     0 A1:2|A2:3 A1:P1|A2:P1"
+	"C2-3:P1:S+  C3:P2  .      .     O2=0   O2=1    .      .     0 A1:2|A2:3 A1:P1|A2:P2"
+	"C2-3:P1:S+  C3:P1  .      .     O2=0    .      .      .     0 A1:|A2:3 A1:P1|A2:P1"
+	"C2-3:P1:S+  C3:P1  .      .     O3=0    .      .      .     0 A1:2|A2: A1:P1|A2:P1"
+	"C2-3:P1:S+  C3:P1  .      .    T:O2=0   .      .      .     0 A1:3|A2:3 A1:P1|A2:P-1"
+	"C2-3:P1:S+  C3:P1  .      .      .    T:O3=0   .      .     0 A1:2|A2:2 A1:P1|A2:P-1"
+	"$SETUP_A123_PARTITIONS    .     O1=0    .      .      .     0 A1:|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .     O2=0    .      .      .     0 A1:1|A2:|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .     O3=0    .      .      .     0 A1:1|A2:2|A3: A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .    T:O1=0   .      .      .     0 A1:2-3|A2:2-3|A3:3 A1:P1|A2:P-1|A3:P-1"
+	"$SETUP_A123_PARTITIONS    .      .    T:O2=0   .      .     0 A1:1|A2:3|A3:3 A1:P1|A2:P1|A3:P-1"
+	"$SETUP_A123_PARTITIONS    .      .      .    T:O3=0   .     0 A1:1|A2:2|A3:2 A1:P1|A2:P1|A3:P-1"
+	"$SETUP_A123_PARTITIONS    .    T:O1=0  O1=1    .      .     0 A1:1|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .      .    T:O2=0  O2=1    .     0 A1:1|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .      .      .    T:O3=0  O3=1   0 A1:1|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .    T:O1=0  O2=0   O1=1    .     0 A1:1|A2:|A3:3 A1:P1|A2:P1|A3:P1"
+	"$SETUP_A123_PARTITIONS    .    T:O1=0  O2=0   O2=1    .     0 A1:2-3|A2:2-3|A3:3 A1:P1|A2:P-1|A3:P-1"
+
+	#  old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate ISOLCPUS
+	#  ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ --------
+	#
+	# Remote partition and cpuset.cpus.exclusive tests
+	#
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3     .      .      .     0 A1:0-3|A2:1-3|A3:2-3|XA1:2-3"
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3  X2-3:P2   .      .     0 A1:0-1|A2:2-3|A3:2-3 A1:P0|A2:P2 2-3"
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3   X3:P2    .      .     0 A1:0-2|A2:3|A3:3 A1:P0|A2:P2 3"
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3   X2-3  X2-3:P2   .     0 A1:0-1|A2:1|A3:2-3 A1:P0|A3:P2 2-3"
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3   X2-3 X2-3:P2:C3 .     0 A1:0-1|A2:1|A3:2-3 A1:P0|A3:P2 2-3"
+	" C0-3:S+ C1-3:S+ C2-3   C2-3     .      .      .      P2    0 A1:0-3|A2:1-3|A3:2-3|B1:2-3 A1:P0|A3:P0|B1:P-2"
+	" C0-3:S+ C1-3:S+ C2-3   C4-5     .      .      .      P2    0 B1:4-5 B1:P2 4-5"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X2-3   X2-3  X2-3:P2   P2    0 A3:2-3|B1:4 A3:P2|B1:P2 2-4"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X2-3   X2-3 X2-3:P2:C1-3 P2  0 A3:2-3|B1:4 A3:P2|B1:P2 2-4"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X1-3  X1-3:P2   P2     .     0 A2:1|A3:2-3 A2:P2|A3:P2 1-3"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X2-3   X2-3  X2-3:P2 P2:C4-5 0 A3:2-3|B1:4-5 A3:P2|B1:P2 2-5"
+	" C4:X0-3:S+ X1-3:S+ X2-3  .      .      P2     .      .     0 A1:4|A2:1-3|A3:1-3 A2:P2 1-3"
+	" C4:X0-3:S+ X1-3:S+ X2-3  .      .      .      P2     .     0 A1:4|A2:4|A3:2-3 A3:P2 2-3"
+
+	# Nested remote/local partition tests
+	" C0-3:S+ C1-3:S+ C2-3   C4-5   X2-3  X2-3:P1   P2     P1    0 A1:0-1|A2:|A3:2-3|B1:4-5 \
+								       A1:P0|A2:P1|A3:P2|B1:P1 2-3"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X2-3  X2-3:P1   P2     P1    0 A1:0-1|A2:|A3:2-3|B1:4 \
+								       A1:P0|A2:P1|A3:P2|B1:P1 2-4|2-3"
+	" C0-3:S+ C1-3:S+ C2-3    C4    X2-3  X2-3:P1    .     P1    0 A1:0-1|A2:2-3|A3:2-3|B1:4 \
+								       A1:P0|A2:P1|A3:P0|B1:P1"
+	" C0-3:S+ C1-3:S+  C3     C4    X2-3  X2-3:P1   P2     P1    0 A1:0-1|A2:2|A3:3|B1:4 \
+								       A1:P0|A2:P1|A3:P2|B1:P1 2-4|3"
+	" C0-4:S+ C1-4:S+ C2-4     .    X2-4  X2-4:P2  X4:P1    .    0 A1:0-1|A2:2-3|A3:4 \
+								       A1:P0|A2:P2|A3:P1 2-4|2-3"
+	" C0-4:S+ C1-4:S+ C2-4     .    X2-4  X2-4:P2 X3-4:P1   .    0 A1:0-1|A2:2|A3:3-4 \
+								       A1:P0|A2:P2|A3:P1 2"
+	" C0-4:X2-4:S+ C1-4:X2-4:S+:P2 C2-4:X4:P1 \
+				   .      .      X5      .      .    0 A1:0-4|A2:1-4|A3:2-4 \
+								       A1:P0|A2:P-2|A3:P-1 ."
+	" C0-4:X2-4:S+ C1-4:X2-4:S+:P2 C2-4:X4:P1 \
+				   .      .      .      X1      .    0 A1:0-1|A2:2-4|A3:2-4 \
+								       A1:P0|A2:P2|A3:P-1 2-4"
+
+	# Remote partition offline tests
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3   X2-3 X2-3:P2:O2=0 .   0 A1:0-1|A2:1|A3:3 A1:P0|A3:P2 2-3"
+	" C0-3:S+ C1-3:S+ C2-3     .    X2-3   X2-3 X2-3:P2:O2=0 O2=1 0 A1:0-1|A2:1|A3:2-3 A1:P0|A3:P2 2-3"
+	" C0-3:S+ C1-3:S+  C3      .    X2-3   X2-3    P2:O3=0   .   0 A1:0-2|A2:1-2|A3: A1:P0|A3:P2 3"
+	" C0-3:S+ C1-3:S+  C3      .    X2-3   X2-3   T:P2:O3=0  .   0 A1:0-2|A2:1-2|A3:1-2 A1:P0|A3:P-2 3|"
+
+	# An invalidated remote partition cannot self-recover from hotplug
+	" C0-3:S+ C1-3:S+  C2      .    X2-3   X2-3   T:P2:O2=0 O2=1 0 A1:0-3|A2:1-3|A3:2 A1:P0|A3:P-2 ."
+
+	# cpus.exclusive.effective clearing test
+	" C0-3:S+ C1-3:S+  C2      .   X2-3:X    .      .      .     0 A1:0-3|A2:1-3|A3:2|XA1:"
+
+	# Invalid to valid remote partition transition test
+	" C0-3:S+   C1-3    .      .      .    X3:P2    .      .     0 A1:0-3|A2:1-3|XA2: A2:P-2 ."
+	" C0-3:S+ C1-3:X3:P2
+			    .      .    X2-3    P2      .      .     0 A1:0-2|A2:3|XA2:3 A2:P2 3"
+
+	# Invalid to valid local partition direct transition tests
+	" C1-3:S+:P2 X4:P2  .      .      .      .      .      .     0 A1:1-3|XA1:1-3|A2:1-3:XA2: A1:P2|A2:P-2 1-3"
+	" C1-3:S+:P2 X4:P2  .      .      .    X3:P2    .      .     0 A1:1-2|XA1:1-3|A2:3:XA2:3 A1:P2|A2:P2 1-3"
+	"  C0-3:P2   .      .    C4-6   C0-4     .      .      .     0 A1:0-4|B1:4-6 A1:P-2|B1:P0"
+	"  C0-3:P2   .      .    C4-6 C0-4:C0-3  .      .      .     0 A1:0-3|B1:4-6 A1:P2|B1:P0 0-3"
+
+	# Local partition invalidation tests
+	" C0-3:X1-3:S+:P2 C1-3:X2-3:S+:P2 C2-3:X3:P2 \
+				   .      .      .      .      .     0 A1:1|A2:2|A3:3 A1:P2|A2:P2|A3:P2 1-3"
+	" C0-3:X1-3:S+:P2 C1-3:X2-3:S+:P2 C2-3:X3:P2 \
+				   .      .     X4      .      .     0 A1:1-3|A2:1-3|A3:2-3|XA2:|XA3: A1:P2|A2:P-2|A3:P-2 1-3"
+	" C0-3:X1-3:S+:P2 C1-3:X2-3:S+:P2 C2-3:X3:P2 \
+				   .      .    C4:X     .      .     0 A1:1-3|A2:1-3|A3:2-3|XA2:|XA3: A1:P2|A2:P-2|A3:P-2 1-3"
+	# Local partition CPU change tests
+	" C0-5:S+:P2 C4-5:S+:P1 .  .      .    C3-5     .      .     0 A1:0-2|A2:3-5 A1:P2|A2:P1 0-2"
+	" C0-5:S+:P2 C4-5:S+:P1 .  .    C1-5     .      .      .     0 A1:1-3|A2:4-5 A1:P2|A2:P1 1-3"
+
+	# cpus_allowed/exclusive_cpus update tests
+	" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
+				   .    X:C4     .      P2     .     0 A1:4|A2:4|XA2:|XA3:|A3:4 \
+								       A1:P0|A3:P-2 ."
+	" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
+				   .     X1      .      P2     .     0 A1:0-3|A2:1-3|XA1:1|XA2:|XA3:|A3:2-3 \
+								       A1:P0|A3:P-2 ."
+	" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3 \
+				   .      .     X3      P2     .     0 A1:0-2|A2:1-2|XA2:3|XA3:3|A3:3 \
+								       A1:P0|A3:P2 3"
+	" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3:P2 \
+				   .      .     X3      .      .     0 A1:0-2|A2:1-2|XA2:3|XA3:3|A3:3|XA3:3 \
+								       A1:P0|A3:P2 3"
+	" C0-3:X2-3:S+ C1-3:X2-3:S+ C2-3:X2-3:P2 \
+				   .     X4      .      .      .     0 A1:0-3|A2:1-3|A3:2-3|XA1:4|XA2:|XA3 \
+								       A1:P0|A3:P-2"
+
+	#  old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate ISOLCPUS
+	#  ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ --------
+	#
+	# Incorrect change to cpuset.cpus[.exclusive] invalidates partition root
+	#
+	# Adding CPUs to partition root that are not in parent's
+	# cpuset.cpus is allowed, but those extra CPUs are ignored.
+	"C2-3:P1:S+ C3:P1   .      .      .     C2-4    .      .     0 A1:|A2:2-3 A1:P1|A2:P1"
+
+	# Taking away all CPUs from parent or itself if there are tasks
+	# will make the partition invalid.
+	"C2-3:P1:S+  C3:P1  .      .      T     C2-3    .      .     0 A1:2-3|A2:2-3 A1:P1|A2:P-1"
+	" C3:P1:S+    C3    .      .      T      P1     .      .     0 A1:3|A2:3 A1:P1|A2:P-1"
+	"$SETUP_A123_PARTITIONS    .    T:C2-3   .      .      .     0 A1:2-3|A2:2-3|A3:3 A1:P1|A2:P-1|A3:P-1"
+	"$SETUP_A123_PARTITIONS    . T:C2-3:C1-3 .      .      .     0 A1:1|A2:2|A3:3 A1:P1|A2:P1|A3:P1"
+
+	# Changing a partition root to member makes child partitions invalid
+	"C2-3:P1:S+  C3:P1  .      .      P0     .      .      .     0 A1:2-3|A2:3 A1:P0|A2:P-1"
+	"$SETUP_A123_PARTITIONS    .     C2-3    P0     .      .     0 A1:2-3|A2:2-3|A3:3 A1:P1|A2:P0|A3:P-1"
+
+	# cpuset.cpus can contains cpus not in parent's cpuset.cpus as long
+	# as they overlap.
+	"C2-3:P1:S+  .      .      .      .   C3-4:P1   .      .     0 A1:2|A2:3 A1:P1|A2:P1"
+
+	# Deletion of CPUs distributed to child cgroup is allowed.
+	"C0-1:P1:S+ C1      .    C2-3   C4-5     .      .      .     0 A1:4-5|A2:4-5"
+
+	# To become a valid partition root, cpuset.cpus must overlap parent's
+	# cpuset.cpus.
+	"  C0-1:P1   .      .    C2-3    S+   C4-5:P1   .      .     0 A1:0-1|A2:0-1 A1:P1|A2:P-1"
+
+	# Enabling partition with child cpusets is allowed
+	"  C0-1:S+  C1      .    C2-3    P1      .      .      .     0 A1:0-1|A2:1 A1:P1"
+
+	# A partition root with non-partition root parent is invalid| but it
+	# can be made valid if its parent becomes a partition root too.
+	"  C0-1:S+  C1      .    C2-3     .      P2     .      .     0 A1:0-1|A2:1 A1:P0|A2:P-2"
+	"  C0-1:S+ C1:P2    .    C2-3     P1     .      .      .     0 A1:0|A2:1 A1:P1|A2:P2 0-1|1"
+
+	# A non-exclusive cpuset.cpus change will invalidate partition and its siblings
+	"  C0-1:P1   .      .    C2-3   C0-2     .      .      .     0 A1:0-2|B1:2-3 A1:P-1|B1:P0"
+	"  C0-1:P1   .      .  P1:C2-3  C0-2     .      .      .     0 A1:0-2|B1:2-3 A1:P-1|B1:P-1"
+	"   C0-1     .      .  P1:C2-3  C0-2     .      .      .     0 A1:0-2|B1:2-3 A1:P0|B1:P-1"
+
+	# cpuset.cpus can overlap with sibling cpuset.cpus.exclusive but not subsumed by it
+	"   C0-3     .      .    C4-5     X5     .      .      .     0 A1:0-3|B1:4-5"
+
+	# Child partition root that try to take all CPUs from parent partition
+	# with tasks will remain invalid.
+	" C1-4:P1:S+ P1     .      .       .     .      .      .     0 A1:1-4|A2:1-4 A1:P1|A2:P-1"
+	" C1-4:P1:S+ P1     .      .       .   C1-4     .      .     0 A1|A2:1-4 A1:P1|A2:P1"
+	" C1-4:P1:S+ P1     .      .       T   C1-4     .      .     0 A1:1-4|A2:1-4 A1:P1|A2:P-1"
+
+	# Clearing of cpuset.cpus with a preset cpuset.cpus.exclusive shouldn't
+	# affect cpuset.cpus.exclusive.effective.
+	" C1-4:X3:S+ C1:X3  .      .       .     C      .      .     0 A2:1-4|XA2:3"
+
+	# cpuset.cpus can contain CPUs that overlap a sibling cpuset with cpus.exclusive
+	# but creating a local partition out of it is not allowed. Similarly and change
+	# in cpuset.cpus of a local partition that overlaps sibling exclusive CPUs will
+	# invalidate it.
+	" CX1-4:S+ CX2-4:P2 .    C5-6      .     .      .      P1    0 A1:1|A2:2-4|B1:5-6|XB1:5-6 \
+								       A1:P0|A2:P2:B1:P1 2-4"
+	" CX1-4:S+ CX2-4:P2 .    C3-6      .     .      .      P1    0 A1:1|A2:2-4|B1:5-6 \
+								       A1:P0|A2:P2:B1:P-1 2-4"
+	" CX1-4:S+ CX2-4:P2 .    C5-6      .     .      .   P1:C3-6  0 A1:1|A2:2-4|B1:5-6 \
+								       A1:P0|A2:P2:B1:P-1 2-4"
+
+	#  old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate ISOLCPUS
+	#  ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ --------
+	# Failure cases:
+
+	# A task cannot be added to a partition with no cpu
+	"C2-3:P1:S+  C3:P1  .      .    O2=0:T   .      .      .     1 A1:|A2:3 A1:P1|A2:P1"
+
+	# Changes to cpuset.cpus.exclusive that violate exclusivity rule is rejected
+	"   C0-3     .      .    C4-5   X0-3     .      .     X3-5   1 A1:0-3|B1:4-5"
+
+	# cpuset.cpus cannot be a subset of sibling cpuset.cpus.exclusive
+	"   C0-3     .      .    C4-5   X3-5     .      .      .     1 A1:0-3|B1:4-5"
+)
+
+#
+# Cpuset controller remote partition test matrix.
+#
+# Cgroup test hierarchy
+#
+#	      root
+#	        |
+#	      rtest (cpuset.cpus.exclusive=1-7)
+#	        |
+#	 +------+------+
+#	 |             |
+#	 p1            p2
+#     +--+--+       +--+--+
+#     |     |       |     |
+#    c11   c12     c21   c22
+#
+# REMOTE_TEST_MATRIX uses the same notational convention as TEST_MATRIX.
+# Only CPUs 1-7 should be used.
+#
+REMOTE_TEST_MATRIX=(
+	#  old-p1 old-p2 old-c11 old-c12 old-c21 old-c22
+	#  new-p1 new-p2 new-c11 new-c12 new-c21 new-c22 ECPUs Pstate ISOLCPUS
+	#  ------ ------ ------- ------- ------- ------- ----- ------ --------
+	" X1-3:S+ X4-6:S+ X1-2     X3     X4-5     X6 \
+	      .      .     P2      P2      P2      P2    c11:1-2|c12:3|c21:4-5|c22:6 \
+							 c11:P2|c12:P2|c21:P2|c22:P2 1-6"
+	" CX1-4:S+   .   X1-2:P2   C3      .       .  \
+	      .      .     .      C3-4     .       .     p1:3-4|c11:1-2|c12:3-4 \
+							 p1:P0|c11:P2|c12:P0 1-2"
+	" CX1-4:S+   .   X1-2:P2   .       .       .  \
+	    X2-4     .     .       .       .       .     p1:1,3-4|c11:2 \
+							 p1:P0|c11:P2 2"
+	" CX1-5:S+   .   X1-2:P2 X3-5:P1   .       .  \
+	    X2-4     .     .       .       .       .     p1:1,5|c11:2|c12:3-4 \
+							 p1:P0|c11:P2|c12:P1 2"
+	" CX1-4:S+   .   X1-2:P2 X3-4:P1   .       .  \
+	      .      .     X2      .       .       .     p1:1|c11:2|c12:3-4 \
+							 p1:P0|c11:P2|c12:P1 2"
+	# p1 as member, will get its effective CPUs from its parent rtest
+	" CX1-4:S+   .   X1-2:P2 X3-4:P1   .       .  \
+	      .      .     X1     CX2-4    .       .     p1:5-7|c11:1|c12:2-4 \
+							 p1:P0|c11:P2|c12:P1 1"
+	" CX1-4:S+ X5-6:P1:S+ .    .       .       .  \
+	      .      .   X1-2:P2  X4-5:P1  .     X1-7:P2 p1:3|c11:1-2|c12:4:c22:5-6 \
+							 p1:P0|p2:P1|c11:P2|c12:P1|c22:P2 \
+							 1-2,4-6|1-2,5-6"
+)
+
+#
+# Write to the cpu online file
+#  $1 - <c>=<v> where <c> = cpu number, <v> value to be written
+#
+write_cpu_online()
+{
+	CPU=${1%=*}
+	VAL=${1#*=}
+	CPUFILE=//sys/devices/system/cpu/cpu${CPU}/online
+	if [[ $VAL -eq 0 ]]
+	then
+		OFFLINE_CPUS="$OFFLINE_CPUS $CPU"
+	else
+		[[ -n "$OFFLINE_CPUS" ]] && {
+			OFFLINE_CPUS=$(echo $CPU $CPU $OFFLINE_CPUS | fmt -1 |\
+					sort | uniq -u)
+		}
+	fi
+	echo $VAL > $CPUFILE
+	pause 0.05
+}
+
+#
+# Set controller state
+#  $1 - cgroup directory
+#  $2 - state
+#  $3 - showerr
+#
+# The presence of ":" in state means transition from one to the next.
+#
+set_ctrl_state()
+{
+	TMPMSG=/tmp/.msg_$$
+	CGRP=$1
+	STATE=$2
+	SHOWERR=${3}
+	CTRL=${CTRL:=$CONTROLLER}
+	HASERR=0
+	REDIRECT="2> $TMPMSG"
+	[[ -z "$STATE" || "$STATE" = '.' ]] && return 0
+	[[ $VERBOSE -gt 0 ]] && SHOWERR=1
+
+	rm -f $TMPMSG
+	for CMD in $(echo $STATE | sed -e "s/:/ /g")
+	do
+		TFILE=$CGRP/cgroup.procs
+		SFILE=$CGRP/cgroup.subtree_control
+		PFILE=$CGRP/cpuset.cpus.partition
+		CFILE=$CGRP/cpuset.cpus
+		XFILE=$CGRP/cpuset.cpus.exclusive
+		case $CMD in
+		    S*) PREFIX=${CMD#?}
+			COMM="echo ${PREFIX}${CTRL} > $SFILE"
+			eval $COMM $REDIRECT
+			;;
+		    X*)
+			CPUS=${CMD#?}
+			COMM="echo $CPUS > $XFILE"
+			eval $COMM $REDIRECT
+			;;
+		    CX*)
+			CPUS=${CMD#??}
+			COMM="echo $CPUS > $CFILE; echo $CPUS > $XFILE"
+			eval $COMM $REDIRECT
+			;;
+		    C*) CPUS=${CMD#?}
+			COMM="echo $CPUS > $CFILE"
+			eval $COMM $REDIRECT
+			;;
+		    P*) VAL=${CMD#?}
+			case $VAL in
+			0)  VAL=member
+			    ;;
+			1)  VAL=root
+			    ;;
+			2)  VAL=isolated
+			    ;;
+			*)
+			    echo "Invalid partition state - $VAL"
+			    exit 1
+			    ;;
+			esac
+			COMM="echo $VAL > $PFILE"
+			eval $COMM $REDIRECT
+			;;
+		    O*) VAL=${CMD#?}
+			write_cpu_online $VAL
+			;;
+		    T*) COMM="echo 0 > $TFILE"
+			eval $COMM $REDIRECT
+			;;
+		    *)  echo "Unknown command: $CMD"
+		        exit 1
+			;;
+		esac
+		RET=$?
+		[[ $RET -ne 0 ]] && {
+			[[ -n "$SHOWERR" ]] && {
+				echo "$COMM"
+				cat $TMPMSG
+			}
+			HASERR=1
+		}
+		pause 0.01
+		rm -f $TMPMSG
+	done
+	return $HASERR
+}
+
+set_ctrl_state_noerr()
+{
+	CGRP=$1
+	STATE=$2
+	[[ -d $CGRP ]] || mkdir $CGRP
+	set_ctrl_state $CGRP $STATE 1
+	[[ $? -ne 0 ]] && {
+		echo "ERROR: Failed to set $2 to cgroup $1!"
+		exit 1
+	}
+}
+
+online_cpus()
+{
+	[[ -n "OFFLINE_CPUS" ]] && {
+		for C in $OFFLINE_CPUS
+		do
+			write_cpu_online ${C}=1
+		done
+	}
+}
+
+#
+# Remove all the test cgroup directories
+#
+reset_cgroup_states()
+{
+	echo 0 > $CGROUP2/cgroup.procs
+	online_cpus
+	rmdir $RESET_LIST > /dev/null 2>&1
+}
+
+dump_states()
+{
+	for DIR in $CGROUP_LIST
+	do
+		CPUS=$DIR/cpuset.cpus
+		ECPUS=$DIR/cpuset.cpus.effective
+		XCPUS=$DIR/cpuset.cpus.exclusive
+		XECPUS=$DIR/cpuset.cpus.exclusive.effective
+		PRS=$DIR/cpuset.cpus.partition
+		PCPUS=$DIR/.__DEBUG__.cpuset.cpus.subpartitions
+		ISCPUS=$DIR/cpuset.cpus.isolated
+		[[ -e $CPUS   ]] && echo "$CPUS: $(cat $CPUS)"
+		[[ -e $XCPUS  ]] && echo "$XCPUS: $(cat $XCPUS)"
+		[[ -e $ECPUS  ]] && echo "$ECPUS: $(cat $ECPUS)"
+		[[ -e $XECPUS ]] && echo "$XECPUS: $(cat $XECPUS)"
+		[[ -e $PRS    ]] && echo "$PRS: $(cat $PRS)"
+		[[ -e $PCPUS  ]] && echo "$PCPUS: $(cat $PCPUS)"
+		[[ -e $ISCPUS ]] && echo "$ISCPUS: $(cat $ISCPUS)"
+	done
+}
+
+#
+# Set the actual cgroup directory into $CGRP_DIR
+# $1 - cgroup name
+#
+set_cgroup_dir()
+{
+	CGRP_DIR=$1
+	[[ $CGRP_DIR = A2  ]] && CGRP_DIR=A1/A2
+	[[ $CGRP_DIR = A3  ]] && CGRP_DIR=A1/A2/A3
+	[[ $CGRP_DIR = c11 ]] && CGRP_DIR=p1/c11
+	[[ $CGRP_DIR = c12 ]] && CGRP_DIR=p1/c12
+	[[ $CGRP_DIR = c21 ]] && CGRP_DIR=p2/c21
+	[[ $CGRP_DIR = c22 ]] && CGRP_DIR=p2/c22
+}
+
+#
+# Check effective cpus
+# $1 - check string, format: <cgroup>:<cpu-list>[|<cgroup>:<cpu-list>]*
+#
+check_effective_cpus()
+{
+	CHK_STR=$1
+	for CHK in $(echo $CHK_STR | sed -e "s/|/ /g")
+	do
+		set -- $(echo $CHK | sed -e "s/:/ /g")
+		CGRP=$1
+		EXPECTED_CPUS=$2
+		ACTUAL_CPUS=
+		if [[ $CGRP = X* ]]
+		then
+			CGRP=${CGRP#X}
+			FILE=cpuset.cpus.exclusive.effective
+		else
+			FILE=cpuset.cpus.effective
+		fi
+		set_cgroup_dir $CGRP
+		[[ -e $CGRP_DIR/$FILE ]] || return 1
+		ACTUAL_CPUS=$(cat $CGRP_DIR/$FILE)
+		[[ $EXPECTED_CPUS = $ACTUAL_CPUS ]] || return 1
+	done
+}
+
+#
+# Check cgroup states
+#  $1 - check string, format: <cgroup>:<state>[|<cgroup>:<state>]*
+#
+check_cgroup_states()
+{
+	CHK_STR=$1
+	for CHK in $(echo $CHK_STR | sed -e "s/|/ /g")
+	do
+		set -- $(echo $CHK | sed -e "s/:/ /g")
+		CGRP=$1
+		EXPECTED_STATE=$2
+		FILE=
+		EVAL=$(expr substr $EXPECTED_STATE 2 2)
+
+		set_cgroup_dir $CGRP
+		case $EXPECTED_STATE in
+			P*) FILE=$CGRP_DIR/cpuset.cpus.partition
+			    ;;
+			*)  echo "Unknown state: $EXPECTED_STATE!"
+			    exit 1
+			    ;;
+		esac
+		ACTUAL_STATE=$(cat $FILE)
+
+		case "$ACTUAL_STATE" in
+			member) VAL=0
+				;;
+			root)	VAL=1
+				;;
+			isolated)
+				VAL=2
+				;;
+			"root invalid"*)
+				VAL=-1
+				;;
+			"isolated invalid"*)
+				VAL=-2
+				;;
+		esac
+		[[ $EVAL != $VAL ]] && return 1
+
+		#
+		# For root partition, dump sched-domains info to console if
+		# verbose mode set for manual comparison with sched debug info.
+		#
+		[[ $VAL -eq 1 && $VERBOSE -gt 0 ]] && {
+			DOMS=$(cat $CGRP_DIR/cpuset.cpus.effective)
+			[[ -n "$DOMS" ]] &&
+				echo " [$CGRP_DIR] sched-domain: $DOMS" > $CONSOLE
+		}
+	done
+	return 0
+}
+
+#
+# Get isolated (including offline) CPUs by looking at
+# /sys/kernel/debug/sched/domains and cpuset.cpus.isolated control file,
+# if available, and compare that with the expected value.
+#
+# Note that isolated CPUs from the sched/domains context include offline
+# CPUs as well as CPUs in non-isolated 1-CPU partition. Those CPUs may
+# not be included in the cpuset.cpus.isolated control file which contains
+# only CPUs in isolated partitions as well as those that are isolated at
+# boot time.
+#
+# $1 - expected isolated cpu list(s) <isolcpus1>{,<isolcpus2>}
+# <isolcpus1> - expected sched/domains value
+# <isolcpus2> - cpuset.cpus.isolated value = <isolcpus1> if not defined
+#
+check_isolcpus()
+{
+	EXPECTED_ISOLCPUS=$1
+	ISCPUS=${CGROUP2}/cpuset.cpus.isolated
+	ISOLCPUS=$(cat $ISCPUS)
+	LASTISOLCPU=
+	SCHED_DOMAINS=/sys/kernel/debug/sched/domains
+	if [[ $EXPECTED_ISOLCPUS = . ]]
+	then
+		EXPECTED_ISOLCPUS=
+		EXPECTED_SDOMAIN=
+	elif [[ $(expr $EXPECTED_ISOLCPUS : ".*|.*") > 0 ]]
+	then
+		set -- $(echo $EXPECTED_ISOLCPUS | sed -e "s/|/ /g")
+		EXPECTED_ISOLCPUS=$2
+		EXPECTED_SDOMAIN=$1
+	else
+		EXPECTED_SDOMAIN=$EXPECTED_ISOLCPUS
+	fi
+
+	#
+	# Appending pre-isolated CPUs
+	# Even though CPU #8 isn't used for testing, it can't be pre-isolated
+	# to make appending those CPUs easier.
+	#
+	[[ -n "$BOOT_ISOLCPUS" ]] && {
+		EXPECTED_ISOLCPUS=${EXPECTED_ISOLCPUS:+${EXPECTED_ISOLCPUS},}${BOOT_ISOLCPUS}
+		EXPECTED_SDOMAIN=${EXPECTED_SDOMAIN:+${EXPECTED_SDOMAIN},}${BOOT_ISOLCPUS}
+	}
+
+	#
+	# Check cpuset.cpus.isolated cpumask
+	#
+	[[ "$EXPECTED_ISOLCPUS" != "$ISOLCPUS" ]] && {
+		# Take a 50ms pause and try again
+		pause 0.05
+		ISOLCPUS=$(cat $ISCPUS)
+	}
+	[[ "$EXPECTED_ISOLCPUS" != "$ISOLCPUS" ]] && return 1
+	ISOLCPUS=
+	EXPECTED_ISOLCPUS=$EXPECTED_SDOMAIN
+
+	#
+	# Use the sched domain in debugfs to check isolated CPUs, if available
+	#
+	[[ -d $SCHED_DOMAINS ]] || return 0
+
+	for ((CPU=0; CPU < $NR_CPUS; CPU++))
+	do
+		[[ -n "$(ls ${SCHED_DOMAINS}/cpu$CPU)" ]] && continue
+
+		if [[ -z "$LASTISOLCPU" ]]
+		then
+			ISOLCPUS=$CPU
+			LASTISOLCPU=$CPU
+		elif [[ "$LASTISOLCPU" -eq $((CPU - 1)) ]]
+		then
+			echo $ISOLCPUS | grep -q "\<$LASTISOLCPU\$"
+			if [[ $? -eq 0 ]]
+			then
+				ISOLCPUS=${ISOLCPUS}-
+			fi
+			LASTISOLCPU=$CPU
+		else
+			if [[ $ISOLCPUS = *- ]]
+			then
+				ISOLCPUS=${ISOLCPUS}$LASTISOLCPU
+			fi
+			ISOLCPUS=${ISOLCPUS},$CPU
+			LASTISOLCPU=$CPU
+		fi
+	done
+	[[ "$ISOLCPUS" = *- ]] && ISOLCPUS=${ISOLCPUS}$LASTISOLCPU
+
+	[[ "$EXPECTED_SDOMAIN" = "$ISOLCPUS" ]]
+}
+
+test_fail()
+{
+	TESTNUM=$1
+	TESTTYPE=$2
+	ADDINFO=$3
+	echo "Test $TEST[$TESTNUM] failed $TESTTYPE check!"
+	[[ -n "$ADDINFO" ]] && echo "*** $ADDINFO ***"
+	eval echo \${$TEST[$I]}
+	echo
+	dump_states
+	exit 1
+}
+
+#
+# Check to see if there are unexpected isolated CPUs left beyond the boot
+# time isolated ones.
+#
+null_isolcpus_check()
+{
+	[[ $VERBOSE -gt 0 ]] || return 0
+	# Retry a few times before printing error
+	RETRY=0
+	while [[ $RETRY -lt 8 ]]
+	do
+		pause 0.02
+		check_isolcpus "."
+		[[ $? -eq 0 ]] && return 0
+		((RETRY++))
+	done
+	echo "Unexpected isolated CPUs: $ISOLCPUS"
+	dump_states
+	exit 1
+}
+
+#
+# Check state transition test result
+#  $1 - Test number
+#  $2 - Expected effective CPU values
+#  $3 - Expected partition states
+#  $4 - Expected isolated CPUs
+#
+check_test_results()
+{
+	_NR=$1
+	_ECPUS="$2"
+	_PSTATES="$3"
+	_ISOLCPUS="$4"
+
+	[[ -n "$_ECPUS" && "$_ECPUS" != . ]] && {
+		check_effective_cpus $_ECPUS
+		[[ $? -ne 0 ]] && test_fail $_NR "effective CPU" \
+			 "Cgroup $CGRP: expected $EXPECTED_CPUS, got $ACTUAL_CPUS"
+	}
+
+	[[ -n "$_PSTATES" && "$_PSTATES" != . ]] && {
+		check_cgroup_states $_PSTATES
+		[[ $? -ne 0 ]] && test_fail $_NR states \
+			"Cgroup $CGRP: expected $EXPECTED_STATE, got $ACTUAL_STATE"
+	}
+
+	# Compare the expected isolated CPUs with the actual ones,
+	# if available
+	[[ -n "$_ISOLCPUS" ]] && {
+		check_isolcpus $_ISOLCPUS
+		[[ $? -ne 0 ]] && {
+			[[ -n "$BOOT_ISOLCPUS" ]] && _ISOLCPUS=${_ISOLCPUS},${BOOT_ISOLCPUS}
+			test_fail $_NR "isolated CPU" \
+				"Expect $_ISOLCPUS, get $ISOLCPUS instead"
+		}
+	}
+	reset_cgroup_states
+	#
+	# Check to see if effective cpu list changes
+	#
+	_NEWLIST=$(cat $CGROUP2/cpuset.cpus.effective)
+	RETRY=0
+	while [[ $_NEWLIST != $CPULIST && $RETRY -lt 8 ]]
+	do
+		# Wait a bit longer & recheck a few times
+		pause 0.02
+		((RETRY++))
+		_NEWLIST=$(cat $CGROUP2/cpuset.cpus.effective)
+	done
+	[[ $_NEWLIST != $CPULIST ]] && {
+		echo "Effective cpus changed to $_NEWLIST after test $_NR!"
+		exit 1
+	}
+	null_isolcpus_check
+	[[ $VERBOSE -gt 0 ]] && echo "Test $I done."
+}
+
+#
+# Run cpuset state transition test
+#  $1 - test matrix name
+#
+# This test is somewhat fragile as delays (sleep x) are added in various
+# places to make sure state changes are fully propagated before the next
+# action. These delays may need to be adjusted if running in a slower machine.
+#
+run_state_test()
+{
+	TEST=$1
+	CONTROLLER=cpuset
+	CGROUP_LIST=". A1 A1/A2 A1/A2/A3 B1"
+	RESET_LIST="A1/A2/A3 A1/A2 A1 B1"
+	I=0
+	eval CNT="\${#$TEST[@]}"
+
+	reset_cgroup_states
+	console_msg "Running state transition test ..."
+
+	while [[ $I -lt $CNT ]]
+	do
+		echo "Running test $I ..." > $CONSOLE
+		[[ $VERBOSE -gt 1 ]] && {
+			echo ""
+			eval echo \${$TEST[$I]}
+		}
+		eval set -- "\${$TEST[$I]}"
+		OLD_A1=$1
+		OLD_A2=$2
+		OLD_A3=$3
+		OLD_B1=$4
+		NEW_A1=$5
+		NEW_A2=$6
+		NEW_A3=$7
+		NEW_B1=$8
+		RESULT=$9
+		ECPUS=${10}
+		STATES=${11}
+		ICPUS=${12}
+
+		set_ctrl_state_noerr A1       $OLD_A1
+		set_ctrl_state_noerr A1/A2    $OLD_A2
+		set_ctrl_state_noerr A1/A2/A3 $OLD_A3
+		set_ctrl_state_noerr B1       $OLD_B1
+
+		RETVAL=0
+		set_ctrl_state A1       $NEW_A1; ((RETVAL += $?))
+		set_ctrl_state A1/A2    $NEW_A2; ((RETVAL += $?))
+		set_ctrl_state A1/A2/A3 $NEW_A3; ((RETVAL += $?))
+		set_ctrl_state B1       $NEW_B1; ((RETVAL += $?))
+
+		[[ $RETVAL -ne $RESULT ]] && test_fail $I result
+
+		check_test_results $I "$ECPUS" "$STATES" "$ICPUS"
+		((I++))
+	done
+	echo "All $I tests of $TEST PASSED."
+}
+
+#
+# Run cpuset remote partition state transition test
+#  $1 - test matrix name
+#
+run_remote_state_test()
+{
+	TEST=$1
+	CONTROLLER=cpuset
+	[[ -d rtest ]] || mkdir rtest
+	cd rtest
+	echo +cpuset > cgroup.subtree_control
+	echo "1-7" > cpuset.cpus
+	echo "1-7" > cpuset.cpus.exclusive
+	CGROUP_LIST=".. . p1 p2 p1/c11 p1/c12 p2/c21 p2/c22"
+	RESET_LIST="p1/c11 p1/c12 p2/c21 p2/c22 p1 p2"
+	I=0
+	eval CNT="\${#$TEST[@]}"
+
+	reset_cgroup_states
+	console_msg "Running remote partition state transition test ..."
+
+	while [[ $I -lt $CNT ]]
+	do
+		echo "Running test $I ..." > $CONSOLE
+		[[ $VERBOSE -gt 1 ]] && {
+			echo ""
+			eval echo \${$TEST[$I]}
+		}
+		eval set -- "\${$TEST[$I]}"
+		OLD_p1=$1
+		OLD_p2=$2
+		OLD_c11=$3
+		OLD_c12=$4
+		OLD_c21=$5
+		OLD_c22=$6
+		NEW_p1=$7
+		NEW_p2=$8
+		NEW_c11=$9
+		NEW_c12=${10}
+		NEW_c21=${11}
+		NEW_c22=${12}
+		ECPUS=${13}
+		STATES=${14}
+		ICPUS=${15}
+
+		set_ctrl_state_noerr p1     $OLD_p1
+		set_ctrl_state_noerr p2     $OLD_p2
+		set_ctrl_state_noerr p1/c11 $OLD_c11
+		set_ctrl_state_noerr p1/c12 $OLD_c12
+		set_ctrl_state_noerr p2/c21 $OLD_c21
+		set_ctrl_state_noerr p2/c22 $OLD_c22
+
+		RETVAL=0
+		set_ctrl_state p1     $NEW_p1 ; ((RETVAL += $?))
+		set_ctrl_state p2     $NEW_p2 ; ((RETVAL += $?))
+		set_ctrl_state p1/c11 $NEW_c11; ((RETVAL += $?))
+		set_ctrl_state p1/c12 $NEW_c12; ((RETVAL += $?))
+		set_ctrl_state p2/c21 $NEW_c21; ((RETVAL += $?))
+		set_ctrl_state p2/c22 $NEW_c22; ((RETVAL += $?))
+
+		[[ $RETVAL -ne 0 ]] && test_fail $I result
+
+		check_test_results $I "$ECPUS" "$STATES" "$ICPUS"
+		((I++))
+	done
+	cd ..
+	rmdir rtest
+	echo "All $I tests of $TEST PASSED."
+}
+
+#
+# Testing the new "isolated" partition root type
+#
+test_isolated()
+{
+	cd $CGROUP2/test
+	echo 2-3 > cpuset.cpus
+	TYPE=$(cat cpuset.cpus.partition)
+	[[ $TYPE = member ]] || echo member > cpuset.cpus.partition
+
+	console_msg "Change from member to root"
+	test_partition root
+
+	console_msg "Change from root to isolated"
+	test_partition isolated
+
+	console_msg "Change from isolated to member"
+	test_partition member
+
+	console_msg "Change from member to isolated"
+	test_partition isolated
+
+	console_msg "Change from isolated to root"
+	test_partition root
+
+	console_msg "Change from root to member"
+	test_partition member
+
+	#
+	# Testing partition root with no cpu
+	#
+	console_msg "Distribute all cpus to child partition"
+	echo +cpuset > cgroup.subtree_control
+	test_partition root
+
+	mkdir A1
+	cd A1
+	echo 2-3 > cpuset.cpus
+	test_partition root
+	test_effective_cpus 2-3
+	cd ..
+	test_effective_cpus ""
+
+	console_msg "Moving task to partition test"
+	test_add_proc "No space left"
+	cd A1
+	test_add_proc ""
+	cd ..
+
+	console_msg "Shrink and expand child partition"
+	cd A1
+	echo 2 > cpuset.cpus
+	cd ..
+	test_effective_cpus 3
+	cd A1
+	echo 2-3 > cpuset.cpus
+	cd ..
+	test_effective_cpus ""
+
+	# Cleaning up
+	console_msg "Cleaning up"
+	echo $$ > $CGROUP2/cgroup.procs
+	[[ -d A1 ]] && rmdir A1
+	null_isolcpus_check
+	pause 0.05
+}
+
+#
+# Wait for inotify event for the given file and read it
+# $1: cgroup file to wait for
+# $2: file to store the read result
+#
+wait_inotify()
+{
+	CGROUP_FILE=$1
+	OUTPUT_FILE=$2
+
+	$WAIT_INOTIFY $CGROUP_FILE
+	cat $CGROUP_FILE > $OUTPUT_FILE
+}
+
+#
+# Test if inotify events are properly generated when going into and out of
+# invalid partition state.
+#
+test_inotify()
+{
+	ERR=0
+	PRS=/tmp/.prs_$$
+	cd $CGROUP2/test
+	[[ -f $WAIT_INOTIFY ]] || {
+		echo "wait_inotify not found, inotify test SKIPPED."
+		return
+	}
+
+	pause 0.01
+	echo 1 > cpuset.cpus
+	echo 0 > cgroup.procs
+	echo root > cpuset.cpus.partition
+	pause 0.01
+	rm -f $PRS
+	wait_inotify $PWD/cpuset.cpus.partition $PRS &
+	pause 0.01
+	set_ctrl_state . "O1=0"
+	pause 0.01
+	check_cgroup_states ".:P-1"
+	if [[ $? -ne 0 ]]
+	then
+		echo "FAILED: Inotify test - partition not invalid"
+		ERR=1
+	elif [[ ! -f $PRS ]]
+	then
+		echo "FAILED: Inotify test - event not generated"
+		ERR=1
+		kill %1
+	elif [[ $(cat $PRS) != "root invalid"* ]]
+	then
+		echo "FAILED: Inotify test - incorrect state"
+		cat $PRS
+		ERR=1
+	fi
+	online_cpus
+	echo member > cpuset.cpus.partition
+	echo 0 > ../cgroup.procs
+	if [[ $ERR -ne 0 ]]
+	then
+		exit 1
+	else
+		echo "Inotify test PASSED"
+	fi
+	echo member > cpuset.cpus.partition
+	echo "" > cpuset.cpus
+}
+
+trap cleanup 0 2 3 6
+run_state_test TEST_MATRIX
+run_remote_state_test REMOTE_TEST_MATRIX
+test_isolated
+test_inotify
+echo "All tests PASSED."
diff --git a/tools/testing/selftests/cgroup/test_cpuset_v1_base.sh b/tools/testing/selftests/cgroup/test_cpuset_v1_base.sh
new file mode 100755
index 000000000000..42a6628fb8bc
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_cpuset_v1_base.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Basc test for cpuset v1 interfaces write/read
+#
+
+skip_test() {
+	echo "$1"
+	echo "Test SKIPPED"
+	exit 4 # ksft_skip
+}
+
+write_test() {
+	dir=$1
+	interface=$2
+	value=$3
+	original=$(cat $dir/$interface)
+	echo "testing $interface $value"
+	echo $value > $dir/$interface
+	new=$(cat $dir/$interface)
+	[[ $value -ne $(cat $dir/$interface) ]] && {
+		echo "$interface write $value failed: new:$new"
+		exit 1
+	}
+}
+
+[[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!"
+
+# Find cpuset v1 mount point
+CPUSET=$(mount -t cgroup | grep cpuset | head -1 | awk '{print $3}')
+[[ -n "$CPUSET" ]] || skip_test "cpuset v1 mount point not found!"
+
+#
+# Create a test cpuset, read write test
+#
+TDIR=test$$
+[[ -d $CPUSET/$TDIR ]] || mkdir $CPUSET/$TDIR
+
+ITF_MATRIX=(
+	#interface			value		expect 	root_only
+	'cpuset.cpus			0-1		0-1	0'
+	'cpuset.mem_exclusive		1		1	0'
+	'cpuset.mem_exclusive		0		0	0'
+	'cpuset.mem_hardwall		1		1	0'
+	'cpuset.mem_hardwall		0		0	0'
+	'cpuset.memory_migrate		1		1	0'
+	'cpuset.memory_migrate		0		0	0'
+	'cpuset.memory_spread_page	1		1	0'
+	'cpuset.memory_spread_page	0		0	0'
+	'cpuset.memory_spread_slab	1		1	0'
+	'cpuset.memory_spread_slab	0		0	0'
+	'cpuset.mems			0		0	0'
+	'cpuset.sched_load_balance	1		1	0'
+	'cpuset.sched_load_balance	0		0	0'
+	'cpuset.sched_relax_domain_level	2	2	0'
+	'cpuset.memory_pressure_enabled	1		1	1'
+	'cpuset.memory_pressure_enabled	0		0	1'
+)
+
+run_test()
+{
+	cnt="${ITF_MATRIX[@]}"
+	for i in "${ITF_MATRIX[@]}" ; do
+		args=($i)
+		root_only=${args[3]}
+		[[ $root_only -eq 1 ]] && {
+			write_test "$CPUSET" "${args[0]}" "${args[1]}" "${args[2]}"
+			continue
+		}
+		write_test "$CPUSET/$TDIR" "${args[0]}" "${args[1]}" "${args[2]}"
+	done
+}
+
+run_test
+rmdir $CPUSET/$TDIR
+echo "Test PASSED"
+exit 0
diff --git a/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh b/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh
new file mode 100755
index 000000000000..7406c24be1ac
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_cpuset_v1_hp.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test the special cpuset v1 hotplug case where a cpuset become empty of
+# CPUs will force migration of tasks out to an ancestor.
+#
+
+skip_test() {
+	echo "$1"
+	echo "Test SKIPPED"
+	exit 4 # ksft_skip
+}
+
+[[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!"
+
+# Find cpuset v1 mount point
+CPUSET=$(mount -t cgroup | grep cpuset | head -1 | awk -e '{print $3}')
+[[ -n "$CPUSET" ]] || skip_test "cpuset v1 mount point not found!"
+
+#
+# Create a test cpuset, put a CPU and a task there and offline that CPU
+#
+TDIR=test$$
+[[ -d $CPUSET/$TDIR ]] || mkdir $CPUSET/$TDIR
+echo 1 > $CPUSET/$TDIR/cpuset.cpus
+echo 0 > $CPUSET/$TDIR/cpuset.mems
+sleep 10&
+TASK=$!
+echo $TASK > $CPUSET/$TDIR/tasks
+NEWCS=$(cat /proc/$TASK/cpuset)
+[[ $NEWCS != "/$TDIR" ]] && {
+	echo "Unexpected cpuset $NEWCS, test FAILED!"
+	exit 1
+}
+
+echo 0 > /sys/devices/system/cpu/cpu1/online
+sleep 0.5
+echo 1 > /sys/devices/system/cpu/cpu1/online
+NEWCS=$(cat /proc/$TASK/cpuset)
+rmdir $CPUSET/$TDIR
+[[ $NEWCS != "/" ]] && {
+	echo "cpuset $NEWCS, test FAILED!"
+	exit 1
+}
+echo "Test PASSED"
+exit 0
diff --git a/tools/testing/selftests/cgroup/test_freezer.c b/tools/testing/selftests/cgroup/test_freezer.c
new file mode 100644
index 000000000000..97fae92c8387
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_freezer.c
@@ -0,0 +1,1512 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <stdbool.h>
+#include <linux/limits.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+#define DEBUG
+#ifdef DEBUG
+#define debug(args...) fprintf(stderr, args)
+#else
+#define debug(args...)
+#endif
+
+/*
+ * Check if the cgroup is frozen by looking at the cgroup.events::frozen value.
+ */
+static int cg_check_frozen(const char *cgroup, bool frozen)
+{
+	if (frozen) {
+		if (cg_read_strstr(cgroup, "cgroup.events", "frozen 1") != 0) {
+			debug("Cgroup %s isn't frozen\n", cgroup);
+			return -1;
+		}
+	} else {
+		/*
+		 * Check the cgroup.events::frozen value.
+		 */
+		if (cg_read_strstr(cgroup, "cgroup.events", "frozen 0") != 0) {
+			debug("Cgroup %s is frozen\n", cgroup);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * Freeze the given cgroup.
+ */
+static int cg_freeze_nowait(const char *cgroup, bool freeze)
+{
+	return cg_write(cgroup, "cgroup.freeze", freeze ? "1" : "0");
+}
+
+/*
+ * Attach a task to the given cgroup and wait for a cgroup frozen event.
+ * All transient events (e.g. populated) are ignored.
+ */
+static int cg_enter_and_wait_for_frozen(const char *cgroup, int pid,
+					bool frozen)
+{
+	int fd, ret = -1;
+	int attempts;
+
+	fd = cg_prepare_for_wait(cgroup);
+	if (fd < 0)
+		return fd;
+
+	ret = cg_enter(cgroup, pid);
+	if (ret)
+		goto out;
+
+	for (attempts = 0; attempts < 10; attempts++) {
+		ret = cg_wait_for(fd);
+		if (ret)
+			break;
+
+		ret = cg_check_frozen(cgroup, frozen);
+		if (ret)
+			continue;
+	}
+
+out:
+	close(fd);
+	return ret;
+}
+
+/*
+ * Freeze the given cgroup and wait for the inotify signal.
+ * If there are no events in 10 seconds, treat this as an error.
+ * Then check that the cgroup is in the desired state.
+ */
+static int cg_freeze_wait(const char *cgroup, bool freeze)
+{
+	int fd, ret = -1;
+
+	fd = cg_prepare_for_wait(cgroup);
+	if (fd < 0)
+		return fd;
+
+	ret = cg_freeze_nowait(cgroup, freeze);
+	if (ret) {
+		debug("Error: cg_freeze_nowait() failed\n");
+		goto out;
+	}
+
+	ret = cg_wait_for(fd);
+	if (ret)
+		goto out;
+
+	ret = cg_check_frozen(cgroup, freeze);
+out:
+	close(fd);
+	return ret;
+}
+
+/*
+ * A simple process running in a sleep loop until being
+ * re-parented.
+ */
+static int child_fn(const char *cgroup, void *arg)
+{
+	int ppid = getppid();
+
+	while (getppid() == ppid)
+		usleep(1000);
+
+	return getppid() == ppid;
+}
+
+/*
+ * A simple test for the cgroup freezer: populated the cgroup with 100
+ * running processes and freeze it. Then unfreeze it. Then it kills all
+ * processes and destroys the cgroup.
+ */
+static int test_cgfreezer_simple(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	int i;
+
+	cgroup = cg_name(root, "cg_test_simple");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	for (i = 0; i < 100; i++)
+		cg_run_nowait(cgroup, child_fn, NULL);
+
+	if (cg_wait_for_proc_count(cgroup, 100))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup, false))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, false))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * The test creates the following hierarchy:
+ *       A
+ *    / / \ \
+ *   B  E  I K
+ *  /\  |
+ * C  D F
+ *      |
+ *      G
+ *      |
+ *      H
+ *
+ * with a process in C, H and 3 processes in K.
+ * Then it tries to freeze and unfreeze the whole tree.
+ */
+static int test_cgfreezer_tree(const char *root)
+{
+	char *cgroup[10] = {0};
+	int ret = KSFT_FAIL;
+	int i;
+
+	cgroup[0] = cg_name(root, "cg_test_tree_A");
+	if (!cgroup[0])
+		goto cleanup;
+
+	cgroup[1] = cg_name(cgroup[0], "B");
+	if (!cgroup[1])
+		goto cleanup;
+
+	cgroup[2] = cg_name(cgroup[1], "C");
+	if (!cgroup[2])
+		goto cleanup;
+
+	cgroup[3] = cg_name(cgroup[1], "D");
+	if (!cgroup[3])
+		goto cleanup;
+
+	cgroup[4] = cg_name(cgroup[0], "E");
+	if (!cgroup[4])
+		goto cleanup;
+
+	cgroup[5] = cg_name(cgroup[4], "F");
+	if (!cgroup[5])
+		goto cleanup;
+
+	cgroup[6] = cg_name(cgroup[5], "G");
+	if (!cgroup[6])
+		goto cleanup;
+
+	cgroup[7] = cg_name(cgroup[6], "H");
+	if (!cgroup[7])
+		goto cleanup;
+
+	cgroup[8] = cg_name(cgroup[0], "I");
+	if (!cgroup[8])
+		goto cleanup;
+
+	cgroup[9] = cg_name(cgroup[0], "K");
+	if (!cgroup[9])
+		goto cleanup;
+
+	for (i = 0; i < 10; i++)
+		if (cg_create(cgroup[i]))
+			goto cleanup;
+
+	cg_run_nowait(cgroup[2], child_fn, NULL);
+	cg_run_nowait(cgroup[7], child_fn, NULL);
+	cg_run_nowait(cgroup[9], child_fn, NULL);
+	cg_run_nowait(cgroup[9], child_fn, NULL);
+	cg_run_nowait(cgroup[9], child_fn, NULL);
+
+	/*
+	 * Wait until all child processes will enter
+	 * corresponding cgroups.
+	 */
+
+	if (cg_wait_for_proc_count(cgroup[2], 1) ||
+	    cg_wait_for_proc_count(cgroup[7], 1) ||
+	    cg_wait_for_proc_count(cgroup[9], 3))
+		goto cleanup;
+
+	/*
+	 * Freeze B.
+	 */
+	if (cg_freeze_wait(cgroup[1], true))
+		goto cleanup;
+
+	/*
+	 * Freeze F.
+	 */
+	if (cg_freeze_wait(cgroup[5], true))
+		goto cleanup;
+
+	/*
+	 * Freeze G.
+	 */
+	if (cg_freeze_wait(cgroup[6], true))
+		goto cleanup;
+
+	/*
+	 * Check that A and E are not frozen.
+	 */
+	if (cg_check_frozen(cgroup[0], false))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[4], false))
+		goto cleanup;
+
+	/*
+	 * Freeze A. Check that A, B and E are frozen.
+	 */
+	if (cg_freeze_wait(cgroup[0], true))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[1], true))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[4], true))
+		goto cleanup;
+
+	/*
+	 * Unfreeze B, F and G
+	 */
+	if (cg_freeze_nowait(cgroup[1], false))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[5], false))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[6], false))
+		goto cleanup;
+
+	/*
+	 * Check that C and H are still frozen.
+	 */
+	if (cg_check_frozen(cgroup[2], true))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[7], true))
+		goto cleanup;
+
+	/*
+	 * Unfreeze A. Check that A, C and K are not frozen.
+	 */
+	if (cg_freeze_wait(cgroup[0], false))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[2], false))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[9], false))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (i = 9; i >= 0 && cgroup[i]; i--) {
+		cg_destroy(cgroup[i]);
+		free(cgroup[i]);
+	}
+
+	return ret;
+}
+
+/*
+ * A fork bomb emulator.
+ */
+static int forkbomb_fn(const char *cgroup, void *arg)
+{
+	int ppid;
+
+	fork();
+	fork();
+
+	ppid = getppid();
+
+	while (getppid() == ppid)
+		usleep(1000);
+
+	return getppid() == ppid;
+}
+
+/*
+ * The test runs a fork bomb in a cgroup and tries to freeze it.
+ * Then it kills all processes and checks that cgroup isn't populated
+ * anymore.
+ */
+static int test_cgfreezer_forkbomb(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+
+	cgroup = cg_name(root, "cg_forkbomb_test");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	cg_run_nowait(cgroup, forkbomb_fn, NULL);
+
+	usleep(100000);
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	if (cg_killall(cgroup))
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(cgroup, 0))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * The test creates a cgroups and freezes it. Then it creates a child cgroup
+ * and populates it with a task. After that it checks that the child cgroup
+ * is frozen and the parent cgroup remains frozen too.
+ */
+static int test_cgfreezer_mkdir(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child = NULL;
+	int pid;
+
+	parent = cg_name(root, "cg_test_mkdir_A");
+	if (!parent)
+		goto cleanup;
+
+	child = cg_name(parent, "cg_test_mkdir_B");
+	if (!child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_freeze_wait(parent, true))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	pid = cg_run_nowait(child, child_fn, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(child, 1))
+		goto cleanup;
+
+	if (cg_check_frozen(child, true))
+		goto cleanup;
+
+	if (cg_check_frozen(parent, true))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	free(child);
+	if (parent)
+		cg_destroy(parent);
+	free(parent);
+	return ret;
+}
+
+/*
+ * The test creates two nested cgroups, freezes the parent
+ * and removes the child. Then it checks that the parent cgroup
+ * remains frozen and it's possible to create a new child
+ * without unfreezing. The new child is frozen too.
+ */
+static int test_cgfreezer_rmdir(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child = NULL;
+
+	parent = cg_name(root, "cg_test_rmdir_A");
+	if (!parent)
+		goto cleanup;
+
+	child = cg_name(parent, "cg_test_rmdir_B");
+	if (!child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_freeze_wait(parent, true))
+		goto cleanup;
+
+	if (cg_destroy(child))
+		goto cleanup;
+
+	if (cg_check_frozen(parent, true))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_check_frozen(child, true))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	free(child);
+	if (parent)
+		cg_destroy(parent);
+	free(parent);
+	return ret;
+}
+
+/*
+ * The test creates two cgroups: A and B, runs a process in A
+ * and performs several migrations:
+ * 1) A (running) -> B (frozen)
+ * 2) B (frozen) -> A (running)
+ * 3) A (frozen) -> B (frozen)
+ *
+ * On each step it checks the actual state of both cgroups.
+ */
+static int test_cgfreezer_migrate(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup[2] = {0};
+	int pid;
+
+	cgroup[0] = cg_name(root, "cg_test_migrate_A");
+	if (!cgroup[0])
+		goto cleanup;
+
+	cgroup[1] = cg_name(root, "cg_test_migrate_B");
+	if (!cgroup[1])
+		goto cleanup;
+
+	if (cg_create(cgroup[0]))
+		goto cleanup;
+
+	if (cg_create(cgroup[1]))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup[0], child_fn, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(cgroup[0], 1))
+		goto cleanup;
+
+	/*
+	 * Migrate from A (running) to B (frozen)
+	 */
+	if (cg_freeze_wait(cgroup[1], true))
+		goto cleanup;
+
+	if (cg_enter_and_wait_for_frozen(cgroup[1], pid, true))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[0], false))
+		goto cleanup;
+
+	/*
+	 * Migrate from B (frozen) to A (running)
+	 */
+	if (cg_enter_and_wait_for_frozen(cgroup[0], pid, false))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[1], true))
+		goto cleanup;
+
+	/*
+	 * Migrate from A (frozen) to B (frozen)
+	 */
+	if (cg_freeze_wait(cgroup[0], true))
+		goto cleanup;
+
+	if (cg_enter_and_wait_for_frozen(cgroup[1], pid, true))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup[0], true))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup[0])
+		cg_destroy(cgroup[0]);
+	free(cgroup[0]);
+	if (cgroup[1])
+		cg_destroy(cgroup[1]);
+	free(cgroup[1]);
+	return ret;
+}
+
+/*
+ * The test checks that ptrace works with a tracing process in a frozen cgroup.
+ */
+static int test_cgfreezer_ptrace(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	siginfo_t siginfo;
+	int pid;
+
+	cgroup = cg_name(root, "cg_test_ptrace");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup, child_fn, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(cgroup, 1))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	if (ptrace(PTRACE_SEIZE, pid, NULL, NULL))
+		goto cleanup;
+
+	if (ptrace(PTRACE_INTERRUPT, pid, NULL, NULL))
+		goto cleanup;
+
+	waitpid(pid, NULL, 0);
+
+	/*
+	 * Cgroup has to remain frozen, however the test task
+	 * is in traced state.
+	 */
+	if (cg_check_frozen(cgroup, true))
+		goto cleanup;
+
+	if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo))
+		goto cleanup;
+
+	if (ptrace(PTRACE_DETACH, pid, NULL, NULL))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup, true))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * Check if the process is stopped.
+ */
+static int proc_check_stopped(int pid)
+{
+	char buf[PAGE_SIZE];
+	int len;
+
+	len = proc_read_text(pid, 0, "stat", buf, sizeof(buf));
+	if (len == -1) {
+		debug("Can't get %d stat\n", pid);
+		return -1;
+	}
+
+	if (strstr(buf, "(test_freezer) T ") == NULL) {
+		debug("Process %d in the unexpected state: %s\n", pid, buf);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Test that it's possible to freeze a cgroup with a stopped process.
+ */
+static int test_cgfreezer_stopped(const char *root)
+{
+	int pid, ret = KSFT_FAIL;
+	char *cgroup = NULL;
+
+	cgroup = cg_name(root, "cg_test_stopped");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup, child_fn, NULL);
+
+	if (cg_wait_for_proc_count(cgroup, 1))
+		goto cleanup;
+
+	if (kill(pid, SIGSTOP))
+		goto cleanup;
+
+	if (cg_check_frozen(cgroup, false))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, false))
+		goto cleanup;
+
+	if (proc_check_stopped(pid))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * Test that it's possible to freeze a cgroup with a ptraced process.
+ */
+static int test_cgfreezer_ptraced(const char *root)
+{
+	int pid, ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	siginfo_t siginfo;
+
+	cgroup = cg_name(root, "cg_test_ptraced");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup, child_fn, NULL);
+
+	if (cg_wait_for_proc_count(cgroup, 1))
+		goto cleanup;
+
+	if (ptrace(PTRACE_SEIZE, pid, NULL, NULL))
+		goto cleanup;
+
+	if (ptrace(PTRACE_INTERRUPT, pid, NULL, NULL))
+		goto cleanup;
+
+	waitpid(pid, NULL, 0);
+
+	if (cg_check_frozen(cgroup, false))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	/*
+	 * cg_check_frozen(cgroup, true) will fail here,
+	 * because the task is in the TRACEd state.
+	 */
+	if (cg_freeze_wait(cgroup, false))
+		goto cleanup;
+
+	if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo))
+		goto cleanup;
+
+	if (ptrace(PTRACE_DETACH, pid, NULL, NULL))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+static int vfork_fn(const char *cgroup, void *arg)
+{
+	int pid = vfork();
+
+	if (pid == 0)
+		while (true)
+			sleep(1);
+
+	return pid;
+}
+
+/*
+ * Test that it's possible to freeze a cgroup with a process,
+ * which called vfork() and is waiting for a child.
+ */
+static int test_cgfreezer_vfork(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+
+	cgroup = cg_name(root, "cg_test_vfork");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	cg_run_nowait(cgroup, vfork_fn, NULL);
+
+	if (cg_wait_for_proc_count(cgroup, 2))
+		goto cleanup;
+
+	if (cg_freeze_wait(cgroup, true))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * Get the current frozen_usec for the cgroup.
+ */
+static long cg_check_freezetime(const char *cgroup)
+{
+	return cg_read_key_long(cgroup, "cgroup.stat.local",
+				"frozen_usec ");
+}
+
+/*
+ * Test that the freeze time will behave as expected for an empty cgroup.
+ */
+static int test_cgfreezer_time_empty(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	long prev, curr;
+
+	cgroup = cg_name(root, "cg_time_test_empty");
+	if (!cgroup)
+		goto cleanup;
+
+	/*
+	 * 1) Create an empty cgroup and check that its freeze time
+	 *    is 0.
+	 */
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	curr = cg_check_freezetime(cgroup);
+	if (curr < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+	if (curr > 0) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	if (cg_freeze_nowait(cgroup, true))
+		goto cleanup;
+
+	/*
+	 * 2) Sleep for 1000 us. Check that the freeze time is at
+	 *    least 1000 us.
+	 */
+	usleep(1000);
+	curr = cg_check_freezetime(cgroup);
+	if (curr < 1000) {
+		debug("Expect time (%ld) to be at least 1000 us\n",
+		      curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 3) Unfreeze the cgroup. Check that the freeze time is
+	 *    larger than at 2).
+	 */
+	if (cg_freeze_nowait(cgroup, false))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 4) Check the freeze time again to ensure that it has not
+	 *    changed.
+	 */
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr != prev) {
+		debug("Expect time (%ld) to be unchanged from previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * A simple test for cgroup freezer time accounting. This test follows
+ * the same flow as test_cgfreezer_time_empty, but with a single process
+ * in the cgroup.
+ */
+static int test_cgfreezer_time_simple(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	long prev, curr;
+
+	cgroup = cg_name(root, "cg_time_test_simple");
+	if (!cgroup)
+		goto cleanup;
+
+	/*
+	 * 1) Create a cgroup and check that its freeze time is 0.
+	 */
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	curr = cg_check_freezetime(cgroup);
+	if (curr < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+	if (curr > 0) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 2) Populate the cgroup with one child and check that the
+	 *    freeze time is still 0.
+	 */
+	cg_run_nowait(cgroup, child_fn, NULL);
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr > prev) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	if (cg_freeze_nowait(cgroup, true))
+		goto cleanup;
+
+	/*
+	 * 3) Sleep for 1000 us. Check that the freeze time is at
+	 *    least 1000 us.
+	 */
+	usleep(1000);
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr < 1000) {
+		debug("Expect time (%ld) to be at least 1000 us\n",
+		      curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 4) Unfreeze the cgroup. Check that the freeze time is
+	 *    larger than at 3).
+	 */
+	if (cg_freeze_nowait(cgroup, false))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 5) Sleep for 1000 us. Check that the freeze time is the
+	 *    same as at 4).
+	 */
+	usleep(1000);
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr != prev) {
+		debug("Expect time (%ld) to be unchanged from previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * Test that freezer time accounting works as expected, even while we're
+ * populating a cgroup with processes.
+ */
+static int test_cgfreezer_time_populate(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	long prev, curr;
+	int i;
+
+	cgroup = cg_name(root, "cg_time_test_populate");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	curr = cg_check_freezetime(cgroup);
+	if (curr < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+	if (curr > 0) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 1) Populate the cgroup with 100 processes. Check that
+	 *    the freeze time is 0.
+	 */
+	for (i = 0; i < 100; i++)
+		cg_run_nowait(cgroup, child_fn, NULL);
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr != prev) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 2) Wait for the group to become fully populated. Check
+	 *    that the freeze time is 0.
+	 */
+	if (cg_wait_for_proc_count(cgroup, 100))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr != prev) {
+		debug("Expect time (%ld) to be 0\n", curr);
+		goto cleanup;
+	}
+
+	/*
+	 * 3) Freeze the cgroup and then populate it with 100 more
+	 *    processes. Check that the freeze time continues to grow.
+	 */
+	if (cg_freeze_nowait(cgroup, true))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	for (i = 0; i < 100; i++)
+		cg_run_nowait(cgroup, child_fn, NULL);
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 4) Wait for the group to become fully populated. Check
+	 *    that the freeze time is larger than at 3).
+	 */
+	if (cg_wait_for_proc_count(cgroup, 200))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 5) Unfreeze the cgroup. Check that the freeze time is
+	 *    larger than at 4).
+	 */
+	if (cg_freeze_nowait(cgroup, false))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 6) Kill the processes. Check that the freeze time is the
+	 *    same as it was at 5).
+	 */
+	if (cg_killall(cgroup))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr != prev) {
+		debug("Expect time (%ld) to be unchanged from previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	/*
+	 * 7) Freeze and unfreeze the cgroup. Check that the freeze
+	 *    time is larger than it was at 6).
+	 */
+	if (cg_freeze_nowait(cgroup, true))
+		goto cleanup;
+	if (cg_freeze_nowait(cgroup, false))
+		goto cleanup;
+	prev = curr;
+	curr = cg_check_freezetime(cgroup);
+	if (curr <= prev) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr, prev);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * Test that frozen time for a cgroup continues to work as expected,
+ * even as processes are migrated. Frozen cgroup A's freeze time should
+ * continue to increase and running cgroup B's should stay 0.
+ */
+static int test_cgfreezer_time_migrate(const char *root)
+{
+	long prev_A, curr_A, curr_B;
+	char *cgroup[2] = {0};
+	int ret = KSFT_FAIL;
+	int pid;
+
+	cgroup[0] = cg_name(root, "cg_time_test_migrate_A");
+	if (!cgroup[0])
+		goto cleanup;
+
+	cgroup[1] = cg_name(root, "cg_time_test_migrate_B");
+	if (!cgroup[1])
+		goto cleanup;
+
+	if (cg_create(cgroup[0]))
+		goto cleanup;
+
+	if (cg_check_freezetime(cgroup[0]) < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (cg_create(cgroup[1]))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup[0], child_fn, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(cgroup[0], 1))
+		goto cleanup;
+
+	curr_A = cg_check_freezetime(cgroup[0]);
+	if (curr_A) {
+		debug("Expect time (%ld) to be 0\n", curr_A);
+		goto cleanup;
+	}
+	curr_B = cg_check_freezetime(cgroup[1]);
+	if (curr_B) {
+		debug("Expect time (%ld) to be 0\n", curr_B);
+		goto cleanup;
+	}
+
+	/*
+	 * Freeze cgroup A.
+	 */
+	if (cg_freeze_wait(cgroup[0], true))
+		goto cleanup;
+	prev_A = curr_A;
+	curr_A = cg_check_freezetime(cgroup[0]);
+	if (curr_A <= prev_A) {
+		debug("Expect time (%ld) to be > 0\n", curr_A);
+		goto cleanup;
+	}
+
+	/*
+	 * Migrate from A (frozen) to B (running).
+	 */
+	if (cg_enter(cgroup[1], pid))
+		goto cleanup;
+
+	usleep(1000);
+	curr_B = cg_check_freezetime(cgroup[1]);
+	if (curr_B) {
+		debug("Expect time (%ld) to be 0\n", curr_B);
+		goto cleanup;
+	}
+
+	prev_A = curr_A;
+	curr_A = cg_check_freezetime(cgroup[0]);
+	if (curr_A <= prev_A) {
+		debug("Expect time (%ld) to be more than previous check (%ld)\n",
+		      curr_A, prev_A);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (cgroup[0])
+		cg_destroy(cgroup[0]);
+	free(cgroup[0]);
+	if (cgroup[1])
+		cg_destroy(cgroup[1]);
+	free(cgroup[1]);
+	return ret;
+}
+
+/*
+ * The test creates a cgroup and freezes it. Then it creates a child cgroup.
+ * After that it checks that the child cgroup has a non-zero freeze time
+ * that is less than the parent's. Next, it freezes the child, unfreezes
+ * the parent, and sleeps. Finally, it checks that the child's freeze
+ * time has grown larger than the parent's.
+ */
+static int test_cgfreezer_time_parent(const char *root)
+{
+	char *parent, *child = NULL;
+	int ret = KSFT_FAIL;
+	long ptime, ctime;
+
+	parent = cg_name(root, "cg_test_parent_A");
+	if (!parent)
+		goto cleanup;
+
+	child = cg_name(parent, "cg_test_parent_B");
+	if (!child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_check_freezetime(parent) < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (cg_freeze_wait(parent, true))
+		goto cleanup;
+
+	usleep(1000);
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_check_frozen(child, true))
+		goto cleanup;
+
+	/*
+	 * Since the parent was frozen the entire time the child cgroup
+	 * was being created, we expect the parent's freeze time to be
+	 * larger than the child's.
+	 *
+	 * Ideally, we would be able to check both times simultaneously,
+	 * but here we get the child's after we get the parent's.
+	 */
+	ptime = cg_check_freezetime(parent);
+	ctime = cg_check_freezetime(child);
+	if (ptime <= ctime) {
+		debug("Expect ptime (%ld) > ctime (%ld)\n", ptime, ctime);
+		goto cleanup;
+	}
+
+	if (cg_freeze_nowait(child, true))
+		goto cleanup;
+
+	if (cg_freeze_wait(parent, false))
+		goto cleanup;
+
+	if (cg_check_frozen(child, true))
+		goto cleanup;
+
+	usleep(100000);
+
+	ctime = cg_check_freezetime(child);
+	ptime = cg_check_freezetime(parent);
+
+	if (ctime <= ptime) {
+		debug("Expect ctime (%ld) > ptime (%ld)\n", ctime, ptime);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	free(child);
+	if (parent)
+		cg_destroy(parent);
+	free(parent);
+	return ret;
+}
+
+/*
+ * The test creates a parent cgroup and a child cgroup. Then, it freezes
+ * the child and checks that the child's freeze time is greater than the
+ * parent's, which should be zero.
+ */
+static int test_cgfreezer_time_child(const char *root)
+{
+	char *parent, *child = NULL;
+	int ret = KSFT_FAIL;
+	long ptime, ctime;
+
+	parent = cg_name(root, "cg_test_child_A");
+	if (!parent)
+		goto cleanup;
+
+	child = cg_name(parent, "cg_test_child_B");
+	if (!child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_check_freezetime(parent) < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_freeze_wait(child, true))
+		goto cleanup;
+
+	ctime = cg_check_freezetime(child);
+	ptime = cg_check_freezetime(parent);
+	if (ptime != 0) {
+		debug("Expect ptime (%ld) to be 0\n", ptime);
+		goto cleanup;
+	}
+
+	if (ctime <= ptime) {
+		debug("Expect ctime (%ld) <= ptime (%ld)\n", ctime, ptime);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	free(child);
+	if (parent)
+		cg_destroy(parent);
+	free(parent);
+	return ret;
+}
+
+/*
+ * The test creates the following hierarchy:
+ *    A
+ *    |
+ *    B
+ *    |
+ *    C
+ *
+ * Then it freezes the cgroups in the order C, B, A.
+ * Then it unfreezes the cgroups in the order A, B, C.
+ * Then it checks that C's freeze time is larger than B's and
+ * that B's is larger than A's.
+ */
+static int test_cgfreezer_time_nested(const char *root)
+{
+	char *cgroup[3] = {0};
+	int ret = KSFT_FAIL;
+	long time[3] = {0};
+	int i;
+
+	cgroup[0] = cg_name(root, "cg_test_time_A");
+	if (!cgroup[0])
+		goto cleanup;
+
+	cgroup[1] = cg_name(cgroup[0], "B");
+	if (!cgroup[1])
+		goto cleanup;
+
+	cgroup[2] = cg_name(cgroup[1], "C");
+	if (!cgroup[2])
+		goto cleanup;
+
+	if (cg_create(cgroup[0]))
+		goto cleanup;
+
+	if (cg_check_freezetime(cgroup[0]) < 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (cg_create(cgroup[1]))
+		goto cleanup;
+
+	if (cg_create(cgroup[2]))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[2], true))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[1], true))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[0], true))
+		goto cleanup;
+
+	usleep(1000);
+
+	if (cg_freeze_nowait(cgroup[0], false))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[1], false))
+		goto cleanup;
+
+	if (cg_freeze_nowait(cgroup[2], false))
+		goto cleanup;
+
+	time[2] = cg_check_freezetime(cgroup[2]);
+	time[1] = cg_check_freezetime(cgroup[1]);
+	time[0] = cg_check_freezetime(cgroup[0]);
+
+	if (time[2] <= time[1]) {
+		debug("Expect C's time (%ld) > B's time (%ld)", time[2], time[1]);
+		goto cleanup;
+	}
+
+	if (time[1] <= time[0]) {
+		debug("Expect B's time (%ld) > A's time (%ld)", time[1], time[0]);
+		goto cleanup;
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (i = 2; i >= 0 && cgroup[i]; i--) {
+		cg_destroy(cgroup[i]);
+		free(cgroup[i]);
+	}
+
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct cgfreezer_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_cgfreezer_simple),
+	T(test_cgfreezer_tree),
+	T(test_cgfreezer_forkbomb),
+	T(test_cgfreezer_mkdir),
+	T(test_cgfreezer_rmdir),
+	T(test_cgfreezer_migrate),
+	T(test_cgfreezer_ptrace),
+	T(test_cgfreezer_stopped),
+	T(test_cgfreezer_ptraced),
+	T(test_cgfreezer_vfork),
+	T(test_cgfreezer_time_empty),
+	T(test_cgfreezer_time_simple),
+	T(test_cgfreezer_time_populate),
+	T(test_cgfreezer_time_migrate),
+	T(test_cgfreezer_time_parent),
+	T(test_cgfreezer_time_child),
+	T(test_cgfreezer_time_nested),
+};
+#undef T
+
+int main(int argc, char *argv[])
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_hugetlb_memcg.c b/tools/testing/selftests/cgroup/test_hugetlb_memcg.c
new file mode 100644
index 000000000000..f451aa449be6
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_hugetlb_memcg.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <linux/limits.h>
+#include <sys/mman.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+#define ADDR ((void *)(0x0UL))
+#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB)
+/* mapping 8 MBs == 4 hugepages */
+#define LENGTH (8UL*1024*1024)
+#define PROTECTION (PROT_READ | PROT_WRITE)
+
+/* borrowed from mm/hmm-tests.c */
+static long get_hugepage_size(void)
+{
+	int fd;
+	char buf[2048];
+	int len;
+	char *p, *q, *path = "/proc/meminfo", *tag = "Hugepagesize:";
+	long val;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0) {
+		/* Error opening the file */
+		return -1;
+	}
+
+	len = read(fd, buf, sizeof(buf));
+	close(fd);
+	if (len < 0) {
+		/* Error in reading the file */
+		return -1;
+	}
+	if (len == sizeof(buf)) {
+		/* Error file is too large */
+		return -1;
+	}
+	buf[len] = '\0';
+
+	/* Search for a tag if provided */
+	if (tag) {
+		p = strstr(buf, tag);
+		if (!p)
+			return -1; /* looks like the line we want isn't there */
+		p += strlen(tag);
+	} else
+		p = buf;
+
+	val = strtol(p, &q, 0);
+	if (*q != ' ') {
+		/* Error parsing the file */
+		return -1;
+	}
+
+	return val;
+}
+
+static int set_file(const char *path, long value)
+{
+	FILE *file;
+	int ret;
+
+	file = fopen(path, "w");
+	if (!file)
+		return -1;
+	ret = fprintf(file, "%ld\n", value);
+	fclose(file);
+	return ret;
+}
+
+static int set_nr_hugepages(long value)
+{
+	return set_file("/proc/sys/vm/nr_hugepages", value);
+}
+
+static unsigned int check_first(char *addr)
+{
+	return *(unsigned int *)addr;
+}
+
+static void write_data(char *addr)
+{
+	unsigned long i;
+
+	for (i = 0; i < LENGTH; i++)
+		*(addr + i) = (char)i;
+}
+
+static int hugetlb_test_program(const char *cgroup, void *arg)
+{
+	char *test_group = (char *)arg;
+	void *addr;
+	long old_current, expected_current, current;
+	int ret = EXIT_FAILURE;
+
+	old_current = cg_read_long(test_group, "memory.current");
+	set_nr_hugepages(20);
+	current = cg_read_long(test_group, "memory.current");
+	if (current - old_current >= MB(2)) {
+		ksft_print_msg(
+			"setting nr_hugepages should not increase hugepage usage.\n");
+		ksft_print_msg("before: %ld, after: %ld\n", old_current, current);
+		return EXIT_FAILURE;
+	}
+
+	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, 0, 0);
+	if (addr == MAP_FAILED) {
+		ksft_print_msg("fail to mmap.\n");
+		return EXIT_FAILURE;
+	}
+	current = cg_read_long(test_group, "memory.current");
+	if (current - old_current >= MB(2)) {
+		ksft_print_msg("mmap should not increase hugepage usage.\n");
+		ksft_print_msg("before: %ld, after: %ld\n", old_current, current);
+		goto out_failed_munmap;
+	}
+	old_current = current;
+
+	/* read the first page */
+	check_first(addr);
+	expected_current = old_current + MB(2);
+	current = cg_read_long(test_group, "memory.current");
+	if (!values_close(expected_current, current, 5)) {
+		ksft_print_msg("memory usage should increase by around 2MB.\n");
+		ksft_print_msg(
+			"expected memory: %ld, actual memory: %ld\n",
+			expected_current, current);
+		goto out_failed_munmap;
+	}
+
+	/* write to the whole range */
+	write_data(addr);
+	current = cg_read_long(test_group, "memory.current");
+	expected_current = old_current + MB(8);
+	if (!values_close(expected_current, current, 5)) {
+		ksft_print_msg("memory usage should increase by around 8MB.\n");
+		ksft_print_msg(
+			"expected memory: %ld, actual memory: %ld\n",
+			expected_current, current);
+		goto out_failed_munmap;
+	}
+
+	/* unmap the whole range */
+	munmap(addr, LENGTH);
+	current = cg_read_long(test_group, "memory.current");
+	expected_current = old_current;
+	if (!values_close(expected_current, current, 5)) {
+		ksft_print_msg("memory usage should go back down.\n");
+		ksft_print_msg(
+			"expected memory: %ld, actual memory: %ld\n",
+			expected_current, current);
+		return ret;
+	}
+
+	ret = EXIT_SUCCESS;
+	return ret;
+
+out_failed_munmap:
+	munmap(addr, LENGTH);
+	return ret;
+}
+
+static int test_hugetlb_memcg(char *root)
+{
+	int ret = KSFT_FAIL;
+	char *test_group;
+
+	test_group = cg_name(root, "hugetlb_memcg_test");
+	if (!test_group || cg_create(test_group)) {
+		ksft_print_msg("fail to create cgroup.\n");
+		goto out;
+	}
+
+	if (cg_write(test_group, "memory.max", "100M")) {
+		ksft_print_msg("fail to set cgroup memory limit.\n");
+		goto out;
+	}
+
+	/* disable swap */
+	if (cg_write(test_group, "memory.swap.max", "0")) {
+		ksft_print_msg("fail to disable swap.\n");
+		goto out;
+	}
+
+	if (!cg_run(test_group, hugetlb_test_program, (void *)test_group))
+		ret = KSFT_PASS;
+out:
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+int main(int argc, char **argv)
+{
+	char root[PATH_MAX];
+	int ret = EXIT_SUCCESS, has_memory_hugetlb_acc;
+
+	has_memory_hugetlb_acc = proc_mount_contains("memory_hugetlb_accounting");
+	if (has_memory_hugetlb_acc < 0)
+		ksft_exit_skip("Failed to query cgroup mount option\n");
+	else if (!has_memory_hugetlb_acc)
+		ksft_exit_skip("memory hugetlb accounting is disabled\n");
+
+	/* Unit is kB! */
+	if (get_hugepage_size() != 2048) {
+		ksft_print_msg("test_hugetlb_memcg requires 2MB hugepages\n");
+		ksft_test_result_skip("test_hugetlb_memcg\n");
+		return ret;
+	}
+
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	switch (test_hugetlb_memcg(root)) {
+	case KSFT_PASS:
+		ksft_test_result_pass("test_hugetlb_memcg\n");
+		break;
+	case KSFT_SKIP:
+		ksft_test_result_skip("test_hugetlb_memcg\n");
+		break;
+	default:
+		ret = EXIT_FAILURE;
+		ksft_test_result_fail("test_hugetlb_memcg\n");
+		break;
+	}
+
+	return ret;
+}
diff --git a/tools/testing/selftests/cgroup/test_kill.c b/tools/testing/selftests/cgroup/test_kill.c
new file mode 100644
index 000000000000..c8c9d306925b
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_kill.c
@@ -0,0 +1,298 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <errno.h>
+#include <linux/limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+#include "../pidfd/pidfd.h"
+#include "cgroup_util.h"
+
+/*
+ * Kill the given cgroup and wait for the inotify signal.
+ * If there are no events in 10 seconds, treat this as an error.
+ * Then check that the cgroup is in the desired state.
+ */
+static int cg_kill_wait(const char *cgroup)
+{
+	int fd, ret = -1;
+
+	fd = cg_prepare_for_wait(cgroup);
+	if (fd < 0)
+		return fd;
+
+	ret = cg_write(cgroup, "cgroup.kill", "1");
+	if (ret)
+		goto out;
+
+	ret = cg_wait_for(fd);
+	if (ret)
+		goto out;
+
+out:
+	close(fd);
+	return ret;
+}
+
+/*
+ * A simple process running in a sleep loop until being
+ * re-parented.
+ */
+static int child_fn(const char *cgroup, void *arg)
+{
+	int ppid = getppid();
+
+	while (getppid() == ppid)
+		usleep(1000);
+
+	return getppid() == ppid;
+}
+
+static int test_cgkill_simple(const char *root)
+{
+	pid_t pids[100];
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	int i;
+
+	cgroup = cg_name(root, "cg_test_simple");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	for (i = 0; i < 100; i++)
+		pids[i] = cg_run_nowait(cgroup, child_fn, NULL);
+
+	if (cg_wait_for_proc_count(cgroup, 100))
+		goto cleanup;
+
+	if (cg_read_strcmp(cgroup, "cgroup.events", "populated 1\n"))
+		goto cleanup;
+
+	if (cg_kill_wait(cgroup))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (i = 0; i < 100; i++)
+		wait_for_pid(pids[i]);
+
+	if (ret == KSFT_PASS &&
+	    cg_read_strcmp(cgroup, "cgroup.events", "populated 0\n"))
+		ret = KSFT_FAIL;
+
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+/*
+ * The test creates the following hierarchy:
+ *       A
+ *    / / \ \
+ *   B  E  I K
+ *  /\  |
+ * C  D F
+ *      |
+ *      G
+ *      |
+ *      H
+ *
+ * with a process in C, H and 3 processes in K.
+ * Then it tries to kill the whole tree.
+ */
+static int test_cgkill_tree(const char *root)
+{
+	pid_t pids[5];
+	char *cgroup[10] = {0};
+	int ret = KSFT_FAIL;
+	int i;
+
+	cgroup[0] = cg_name(root, "cg_test_tree_A");
+	if (!cgroup[0])
+		goto cleanup;
+
+	cgroup[1] = cg_name(cgroup[0], "B");
+	if (!cgroup[1])
+		goto cleanup;
+
+	cgroup[2] = cg_name(cgroup[1], "C");
+	if (!cgroup[2])
+		goto cleanup;
+
+	cgroup[3] = cg_name(cgroup[1], "D");
+	if (!cgroup[3])
+		goto cleanup;
+
+	cgroup[4] = cg_name(cgroup[0], "E");
+	if (!cgroup[4])
+		goto cleanup;
+
+	cgroup[5] = cg_name(cgroup[4], "F");
+	if (!cgroup[5])
+		goto cleanup;
+
+	cgroup[6] = cg_name(cgroup[5], "G");
+	if (!cgroup[6])
+		goto cleanup;
+
+	cgroup[7] = cg_name(cgroup[6], "H");
+	if (!cgroup[7])
+		goto cleanup;
+
+	cgroup[8] = cg_name(cgroup[0], "I");
+	if (!cgroup[8])
+		goto cleanup;
+
+	cgroup[9] = cg_name(cgroup[0], "K");
+	if (!cgroup[9])
+		goto cleanup;
+
+	for (i = 0; i < 10; i++)
+		if (cg_create(cgroup[i]))
+			goto cleanup;
+
+	pids[0] = cg_run_nowait(cgroup[2], child_fn, NULL);
+	pids[1] = cg_run_nowait(cgroup[7], child_fn, NULL);
+	pids[2] = cg_run_nowait(cgroup[9], child_fn, NULL);
+	pids[3] = cg_run_nowait(cgroup[9], child_fn, NULL);
+	pids[4] = cg_run_nowait(cgroup[9], child_fn, NULL);
+
+	/*
+	 * Wait until all child processes will enter
+	 * corresponding cgroups.
+	 */
+
+	if (cg_wait_for_proc_count(cgroup[2], 1) ||
+	    cg_wait_for_proc_count(cgroup[7], 1) ||
+	    cg_wait_for_proc_count(cgroup[9], 3))
+		goto cleanup;
+
+	/*
+	 * Kill A and check that we get an empty notification.
+	 */
+	if (cg_kill_wait(cgroup[0]))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (i = 0; i < 5; i++)
+		wait_for_pid(pids[i]);
+
+	if (ret == KSFT_PASS &&
+	    cg_read_strcmp(cgroup[0], "cgroup.events", "populated 0\n"))
+		ret = KSFT_FAIL;
+
+	for (i = 9; i >= 0 && cgroup[i]; i--) {
+		cg_destroy(cgroup[i]);
+		free(cgroup[i]);
+	}
+
+	return ret;
+}
+
+static int forkbomb_fn(const char *cgroup, void *arg)
+{
+	int ppid;
+
+	fork();
+	fork();
+
+	ppid = getppid();
+
+	while (getppid() == ppid)
+		usleep(1000);
+
+	return getppid() == ppid;
+}
+
+/*
+ * The test runs a fork bomb in a cgroup and tries to kill it.
+ */
+static int test_cgkill_forkbomb(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cgroup = NULL;
+	pid_t pid = -ESRCH;
+
+	cgroup = cg_name(root, "cg_forkbomb_test");
+	if (!cgroup)
+		goto cleanup;
+
+	if (cg_create(cgroup))
+		goto cleanup;
+
+	pid = cg_run_nowait(cgroup, forkbomb_fn, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	usleep(100000);
+
+	if (cg_kill_wait(cgroup))
+		goto cleanup;
+
+	if (cg_wait_for_proc_count(cgroup, 0))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (pid > 0)
+		wait_for_pid(pid);
+
+	if (ret == KSFT_PASS &&
+	    cg_read_strcmp(cgroup, "cgroup.events", "populated 0\n"))
+		ret = KSFT_FAIL;
+
+	if (cgroup)
+		cg_destroy(cgroup);
+	free(cgroup);
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct cgkill_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_cgkill_simple),
+	T(test_cgkill_tree),
+	T(test_cgkill_forkbomb),
+};
+#undef T
+
+int main(int argc, char *argv[])
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_kmem.c b/tools/testing/selftests/cgroup/test_kmem.c
new file mode 100644
index 000000000000..ca38525484e3
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_kmem.c
@@ -0,0 +1,457 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <linux/limits.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <sys/sysinfo.h>
+#include <pthread.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+
+/*
+ * Memory cgroup charging is performed using percpu batches 64 pages
+ * big (look at MEMCG_CHARGE_BATCH), whereas memory.stat is exact. So
+ * the maximum discrepancy between charge and vmstat entries is number
+ * of cpus multiplied by 64 pages.
+ */
+#define MAX_VMSTAT_ERROR (4096 * 64 * get_nprocs())
+
+
+static int alloc_dcache(const char *cgroup, void *arg)
+{
+	unsigned long i;
+	struct stat st;
+	char buf[128];
+
+	for (i = 0; i < (unsigned long)arg; i++) {
+		snprintf(buf, sizeof(buf),
+			"/something-non-existent-with-a-long-name-%64lu-%d",
+			 i, getpid());
+		stat(buf, &st);
+	}
+
+	return 0;
+}
+
+/*
+ * This test allocates 100000 of negative dentries with long names.
+ * Then it checks that "slab" in memory.stat is larger than 1M.
+ * Then it sets memory.high to 1M and checks that at least 1/2
+ * of slab memory has been reclaimed.
+ */
+static int test_kmem_basic(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cg = NULL;
+	long slab0, slab1, current;
+
+	cg = cg_name(root, "kmem_basic_test");
+	if (!cg)
+		goto cleanup;
+
+	if (cg_create(cg))
+		goto cleanup;
+
+	if (cg_run(cg, alloc_dcache, (void *)100000))
+		goto cleanup;
+
+	slab0 = cg_read_key_long(cg, "memory.stat", "slab ");
+	if (slab0 < (1 << 20))
+		goto cleanup;
+
+	cg_write(cg, "memory.high", "1M");
+
+	/* wait for RCU freeing */
+	sleep(1);
+
+	slab1 = cg_read_key_long(cg, "memory.stat", "slab ");
+	if (slab1 < 0)
+		goto cleanup;
+
+	current = cg_read_long(cg, "memory.current");
+	if (current < 0)
+		goto cleanup;
+
+	if (slab1 < slab0 / 2 && current < slab0 / 2)
+		ret = KSFT_PASS;
+cleanup:
+	cg_destroy(cg);
+	free(cg);
+
+	return ret;
+}
+
+static void *alloc_kmem_fn(void *arg)
+{
+	alloc_dcache(NULL, (void *)100);
+	return NULL;
+}
+
+static int alloc_kmem_smp(const char *cgroup, void *arg)
+{
+	int nr_threads = 2 * get_nprocs();
+	pthread_t *tinfo;
+	unsigned long i;
+	int ret = -1;
+
+	tinfo = calloc(nr_threads, sizeof(pthread_t));
+	if (tinfo == NULL)
+		return -1;
+
+	for (i = 0; i < nr_threads; i++) {
+		if (pthread_create(&tinfo[i], NULL, &alloc_kmem_fn,
+				   (void *)i)) {
+			free(tinfo);
+			return -1;
+		}
+	}
+
+	for (i = 0; i < nr_threads; i++) {
+		ret = pthread_join(tinfo[i], NULL);
+		if (ret)
+			break;
+	}
+
+	free(tinfo);
+	return ret;
+}
+
+static int cg_run_in_subcgroups(const char *parent,
+				int (*fn)(const char *cgroup, void *arg),
+				void *arg, int times)
+{
+	char *child;
+	int i;
+
+	for (i = 0; i < times; i++) {
+		child = cg_name_indexed(parent, "child", i);
+		if (!child)
+			return -1;
+
+		if (cg_create(child)) {
+			cg_destroy(child);
+			free(child);
+			return -1;
+		}
+
+		if (cg_run(child, fn, NULL)) {
+			cg_destroy(child);
+			free(child);
+			return -1;
+		}
+
+		cg_destroy(child);
+		free(child);
+	}
+
+	return 0;
+}
+
+/*
+ * The test creates and destroys a large number of cgroups. In each cgroup it
+ * allocates some slab memory (mostly negative dentries) using 2 * NR_CPUS
+ * threads. Then it checks the sanity of numbers on the parent level:
+ * the total size of the cgroups should be roughly equal to
+ * anon + file + kernel + sock.
+ */
+static int test_kmem_memcg_deletion(const char *root)
+{
+	long current, anon, file, kernel, sock, sum;
+	int ret = KSFT_FAIL;
+	char *parent;
+
+	parent = cg_name(root, "kmem_memcg_deletion_test");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_run_in_subcgroups(parent, alloc_kmem_smp, NULL, 100))
+		goto cleanup;
+
+	current = cg_read_long(parent, "memory.current");
+	anon = cg_read_key_long(parent, "memory.stat", "anon ");
+	file = cg_read_key_long(parent, "memory.stat", "file ");
+	kernel = cg_read_key_long(parent, "memory.stat", "kernel ");
+	sock = cg_read_key_long(parent, "memory.stat", "sock ");
+	if (current < 0 || anon < 0 || file < 0 || kernel < 0 || sock < 0)
+		goto cleanup;
+
+	sum = anon + file + kernel + sock;
+	if (labs(sum - current) < MAX_VMSTAT_ERROR) {
+		ret = KSFT_PASS;
+	} else {
+		printf("memory.current = %ld\n", current);
+		printf("anon + file + kernel + sock = %ld\n", sum);
+		printf("anon = %ld\n", anon);
+		printf("file = %ld\n", file);
+		printf("kernel = %ld\n", kernel);
+		printf("sock = %ld\n", sock);
+	}
+
+cleanup:
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+/*
+ * The test reads the entire /proc/kpagecgroup. If the operation went
+ * successfully (and the kernel didn't panic), the test is treated as passed.
+ */
+static int test_kmem_proc_kpagecgroup(const char *root)
+{
+	unsigned long buf[128];
+	int ret = KSFT_FAIL;
+	ssize_t len;
+	int fd;
+
+	fd = open("/proc/kpagecgroup", O_RDONLY);
+	if (fd < 0)
+		return ret;
+
+	do {
+		len = read(fd, buf, sizeof(buf));
+	} while (len > 0);
+
+	if (len == 0)
+		ret = KSFT_PASS;
+
+	close(fd);
+	return ret;
+}
+
+static void *pthread_wait_fn(void *arg)
+{
+	sleep(100);
+	return NULL;
+}
+
+static int spawn_1000_threads(const char *cgroup, void *arg)
+{
+	int nr_threads = 1000;
+	pthread_t *tinfo;
+	unsigned long i;
+	long stack;
+	int ret = -1;
+
+	tinfo = calloc(nr_threads, sizeof(pthread_t));
+	if (tinfo == NULL)
+		return -1;
+
+	for (i = 0; i < nr_threads; i++) {
+		if (pthread_create(&tinfo[i], NULL, &pthread_wait_fn,
+				   (void *)i)) {
+			free(tinfo);
+			return(-1);
+		}
+	}
+
+	stack = cg_read_key_long(cgroup, "memory.stat", "kernel_stack ");
+	if (stack >= 4096 * 1000)
+		ret = 0;
+
+	free(tinfo);
+	return ret;
+}
+
+/*
+ * The test spawns a process, which spawns 1000 threads. Then it checks
+ * that memory.stat's kernel_stack is at least 1000 pages large.
+ */
+static int test_kmem_kernel_stacks(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cg = NULL;
+
+	cg = cg_name(root, "kmem_kernel_stacks_test");
+	if (!cg)
+		goto cleanup;
+
+	if (cg_create(cg))
+		goto cleanup;
+
+	if (cg_run(cg, spawn_1000_threads, NULL))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+cleanup:
+	cg_destroy(cg);
+	free(cg);
+
+	return ret;
+}
+
+/*
+ * This test sequentionally creates 30 child cgroups, allocates some
+ * kernel memory in each of them, and deletes them. Then it checks
+ * that the number of dying cgroups on the parent level is 0.
+ */
+static int test_kmem_dead_cgroups(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent;
+	long dead;
+	int i;
+	int max_time = 20;
+
+	parent = cg_name(root, "kmem_dead_cgroups_test");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_run_in_subcgroups(parent, alloc_dcache, (void *)100, 30))
+		goto cleanup;
+
+	for (i = 0; i < max_time; i++) {
+		dead = cg_read_key_long(parent, "cgroup.stat",
+					"nr_dying_descendants ");
+		if (dead == 0) {
+			ret = KSFT_PASS;
+			break;
+		}
+		/*
+		 * Reclaiming cgroups might take some time,
+		 * let's wait a bit and repeat.
+		 */
+		sleep(1);
+		if (i > 5)
+			printf("Waiting time longer than 5s; wait: %ds (dead: %ld)\n", i, dead);
+	}
+
+cleanup:
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+/*
+ * This test creates a sub-tree with 1000 memory cgroups.
+ * Then it checks that the memory.current on the parent level
+ * is greater than 0 and approximates matches the percpu value
+ * from memory.stat.
+ */
+static int test_percpu_basic(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child;
+	long current, percpu;
+	int i;
+
+	parent = cg_name(root, "percpu_basic_test");
+	if (!parent)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	for (i = 0; i < 1000; i++) {
+		child = cg_name_indexed(parent, "child", i);
+		if (!child)
+			return -1;
+
+		if (cg_create(child))
+			goto cleanup_children;
+
+		free(child);
+	}
+
+	current = cg_read_long(parent, "memory.current");
+	percpu = cg_read_key_long(parent, "memory.stat", "percpu ");
+
+	if (current > 0 && percpu > 0 && labs(current - percpu) <
+	    MAX_VMSTAT_ERROR)
+		ret = KSFT_PASS;
+	else
+		printf("memory.current %ld\npercpu %ld\n",
+		       current, percpu);
+
+cleanup_children:
+	for (i = 0; i < 1000; i++) {
+		child = cg_name_indexed(parent, "child", i);
+		cg_destroy(child);
+		free(child);
+	}
+
+cleanup:
+	cg_destroy(parent);
+	free(parent);
+
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct kmem_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_kmem_basic),
+	T(test_kmem_memcg_deletion),
+	T(test_kmem_proc_kpagecgroup),
+	T(test_kmem_kernel_stacks),
+	T(test_kmem_dead_cgroups),
+	T(test_percpu_basic),
+};
+#undef T
+
+int main(int argc, char **argv)
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	/*
+	 * Check that memory controller is available:
+	 * memory is listed in cgroup.controllers
+	 */
+	if (cg_read_strstr(root, "cgroup.controllers", "memory"))
+		ksft_exit_skip("memory controller isn't available\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_memcontrol.c b/tools/testing/selftests/cgroup/test_memcontrol.c
new file mode 100644
index 000000000000..4e1647568c5b
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_memcontrol.c
@@ -0,0 +1,1696 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define _GNU_SOURCE
+
+#include <linux/limits.h>
+#include <linux/oom.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <netdb.h>
+#include <errno.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+static bool has_localevents;
+static bool has_recursiveprot;
+
+int get_temp_fd(void)
+{
+	return open(".", O_TMPFILE | O_RDWR | O_EXCL);
+}
+
+int alloc_pagecache(int fd, size_t size)
+{
+	char buf[PAGE_SIZE];
+	struct stat st;
+	int i;
+
+	if (fstat(fd, &st))
+		goto cleanup;
+
+	size += st.st_size;
+
+	if (ftruncate(fd, size))
+		goto cleanup;
+
+	for (i = 0; i < size; i += sizeof(buf))
+		read(fd, buf, sizeof(buf));
+
+	return 0;
+
+cleanup:
+	return -1;
+}
+
+int alloc_anon(const char *cgroup, void *arg)
+{
+	size_t size = (unsigned long)arg;
+	char *buf, *ptr;
+
+	buf = malloc(size);
+	for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE)
+		*ptr = 0;
+
+	free(buf);
+	return 0;
+}
+
+int is_swap_enabled(void)
+{
+	char buf[PAGE_SIZE];
+	const char delim[] = "\n";
+	int cnt = 0;
+	char *line;
+
+	if (read_text("/proc/swaps", buf, sizeof(buf)) <= 0)
+		return -1;
+
+	for (line = strtok(buf, delim); line; line = strtok(NULL, delim))
+		cnt++;
+
+	return cnt > 1;
+}
+
+int set_oom_adj_score(int pid, int score)
+{
+	char path[PATH_MAX];
+	int fd, len;
+
+	sprintf(path, "/proc/%d/oom_score_adj", pid);
+
+	fd = open(path, O_WRONLY | O_APPEND);
+	if (fd < 0)
+		return fd;
+
+	len = dprintf(fd, "%d", score);
+	if (len < 0) {
+		close(fd);
+		return len;
+	}
+
+	close(fd);
+	return 0;
+}
+
+/*
+ * This test creates two nested cgroups with and without enabling
+ * the memory controller.
+ */
+static int test_memcg_subtree_control(const char *root)
+{
+	char *parent, *child, *parent2 = NULL, *child2 = NULL;
+	int ret = KSFT_FAIL;
+	char buf[PAGE_SIZE];
+
+	/* Create two nested cgroups with the memory controller enabled */
+	parent = cg_name(root, "memcg_test_0");
+	child = cg_name(root, "memcg_test_0/memcg_test_1");
+	if (!parent || !child)
+		goto cleanup_free;
+
+	if (cg_create(parent))
+		goto cleanup_free;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup_parent;
+
+	if (cg_create(child))
+		goto cleanup_parent;
+
+	if (cg_read_strstr(child, "cgroup.controllers", "memory"))
+		goto cleanup_child;
+
+	/* Create two nested cgroups without enabling memory controller */
+	parent2 = cg_name(root, "memcg_test_1");
+	child2 = cg_name(root, "memcg_test_1/memcg_test_1");
+	if (!parent2 || !child2)
+		goto cleanup_free2;
+
+	if (cg_create(parent2))
+		goto cleanup_free2;
+
+	if (cg_create(child2))
+		goto cleanup_parent2;
+
+	if (cg_read(child2, "cgroup.controllers", buf, sizeof(buf)))
+		goto cleanup_all;
+
+	if (!cg_read_strstr(child2, "cgroup.controllers", "memory"))
+		goto cleanup_all;
+
+	ret = KSFT_PASS;
+
+cleanup_all:
+	cg_destroy(child2);
+cleanup_parent2:
+	cg_destroy(parent2);
+cleanup_free2:
+	free(parent2);
+	free(child2);
+cleanup_child:
+	cg_destroy(child);
+cleanup_parent:
+	cg_destroy(parent);
+cleanup_free:
+	free(parent);
+	free(child);
+
+	return ret;
+}
+
+static int alloc_anon_50M_check(const char *cgroup, void *arg)
+{
+	size_t size = MB(50);
+	char *buf, *ptr;
+	long anon, current;
+	int ret = -1;
+
+	buf = malloc(size);
+	if (buf == NULL) {
+		fprintf(stderr, "malloc() failed\n");
+		return -1;
+	}
+
+	for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE)
+		*ptr = 0;
+
+	current = cg_read_long(cgroup, "memory.current");
+	if (current < size)
+		goto cleanup;
+
+	if (!values_close(size, current, 3))
+		goto cleanup;
+
+	anon = cg_read_key_long(cgroup, "memory.stat", "anon ");
+	if (anon < 0)
+		goto cleanup;
+
+	if (!values_close(anon, current, 3))
+		goto cleanup;
+
+	ret = 0;
+cleanup:
+	free(buf);
+	return ret;
+}
+
+static int alloc_pagecache_50M_check(const char *cgroup, void *arg)
+{
+	size_t size = MB(50);
+	int ret = -1;
+	long current, file;
+	int fd;
+
+	fd = get_temp_fd();
+	if (fd < 0)
+		return -1;
+
+	if (alloc_pagecache(fd, size))
+		goto cleanup;
+
+	current = cg_read_long(cgroup, "memory.current");
+	if (current < size)
+		goto cleanup;
+
+	file = cg_read_key_long(cgroup, "memory.stat", "file ");
+	if (file < 0)
+		goto cleanup;
+
+	if (!values_close(file, current, 10))
+		goto cleanup;
+
+	ret = 0;
+
+cleanup:
+	close(fd);
+	return ret;
+}
+
+/*
+ * This test create a memory cgroup, allocates
+ * some anonymous memory and some pagecache
+ * and checks memory.current, memory.peak, and some memory.stat values.
+ */
+static int test_memcg_current_peak(const char *root)
+{
+	int ret = KSFT_FAIL;
+	long current, peak, peak_reset;
+	char *memcg;
+	bool fd2_closed = false, fd3_closed = false, fd4_closed = false;
+	int peak_fd = -1, peak_fd2 = -1, peak_fd3 = -1, peak_fd4 = -1;
+	struct stat ss;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	current = cg_read_long(memcg, "memory.current");
+	if (current != 0)
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak != 0)
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_anon_50M_check, NULL))
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak < MB(50))
+		goto cleanup;
+
+	/*
+	 * We'll open a few FDs for the same memory.peak file to exercise the free-path
+	 * We need at least three to be closed in a different order than writes occurred to test
+	 * the linked-list handling.
+	 */
+	peak_fd = cg_open(memcg, "memory.peak", O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (peak_fd == -1) {
+		if (errno == ENOENT)
+			ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	/*
+	 * Before we try to use memory.peak's fd, try to figure out whether
+	 * this kernel supports writing to that file in the first place. (by
+	 * checking the writable bit on the file's st_mode)
+	 */
+	if (fstat(peak_fd, &ss))
+		goto cleanup;
+
+	if ((ss.st_mode & S_IWUSR) == 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	peak_fd2 = cg_open(memcg, "memory.peak", O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (peak_fd2 == -1)
+		goto cleanup;
+
+	peak_fd3 = cg_open(memcg, "memory.peak", O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (peak_fd3 == -1)
+		goto cleanup;
+
+	/* any non-empty string resets, but make it clear */
+	static const char reset_string[] = "reset\n";
+
+	peak_reset = write(peak_fd, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	peak_reset = write(peak_fd2, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	peak_reset = write(peak_fd3, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	/* Make sure a completely independent read isn't affected by our  FD-local reset above*/
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak < MB(50))
+		goto cleanup;
+
+	fd2_closed = true;
+	if (close(peak_fd2))
+		goto cleanup;
+
+	peak_fd4 = cg_open(memcg, "memory.peak", O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (peak_fd4 == -1)
+		goto cleanup;
+
+	peak_reset = write(peak_fd4, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	peak = cg_read_long_fd(peak_fd);
+	if (peak > MB(30) || peak < 0)
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_pagecache_50M_check, NULL))
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak < MB(50))
+		goto cleanup;
+
+	/* Make sure everything is back to normal */
+	peak = cg_read_long_fd(peak_fd);
+	if (peak < MB(50))
+		goto cleanup;
+
+	peak = cg_read_long_fd(peak_fd4);
+	if (peak < MB(50))
+		goto cleanup;
+
+	fd3_closed = true;
+	if (close(peak_fd3))
+		goto cleanup;
+
+	fd4_closed = true;
+	if (close(peak_fd4))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	close(peak_fd);
+	if (!fd2_closed)
+		close(peak_fd2);
+	if (!fd3_closed)
+		close(peak_fd3);
+	if (!fd4_closed)
+		close(peak_fd4);
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+static int alloc_pagecache_50M_noexit(const char *cgroup, void *arg)
+{
+	int fd = (long)arg;
+	int ppid = getppid();
+
+	if (alloc_pagecache(fd, MB(50)))
+		return -1;
+
+	while (getppid() == ppid)
+		sleep(1);
+
+	return 0;
+}
+
+static int alloc_anon_noexit(const char *cgroup, void *arg)
+{
+	int ppid = getppid();
+	size_t size = (unsigned long)arg;
+	char *buf, *ptr;
+
+	buf = malloc(size);
+	if (buf == NULL) {
+		fprintf(stderr, "malloc() failed\n");
+		return -1;
+	}
+
+	for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE)
+		*ptr = 0;
+
+	while (getppid() == ppid)
+		sleep(1);
+
+	free(buf);
+	return 0;
+}
+
+/*
+ * Wait until processes are killed asynchronously by the OOM killer
+ * If we exceed a timeout, fail.
+ */
+static int cg_test_proc_killed(const char *cgroup)
+{
+	int limit;
+
+	for (limit = 10; limit > 0; limit--) {
+		if (cg_read_strcmp(cgroup, "cgroup.procs", "") == 0)
+			return 0;
+
+		usleep(100000);
+	}
+	return -1;
+}
+
+static bool reclaim_until(const char *memcg, long goal);
+
+/*
+ * First, this test creates the following hierarchy:
+ * A       memory.min = 0,    memory.max = 200M
+ * A/B     memory.min = 50M
+ * A/B/C   memory.min = 75M,  memory.current = 50M
+ * A/B/D   memory.min = 25M,  memory.current = 50M
+ * A/B/E   memory.min = 0,    memory.current = 50M
+ * A/B/F   memory.min = 500M, memory.current = 0
+ *
+ * (or memory.low if we test soft protection)
+ *
+ * Usages are pagecache and the test keeps a running
+ * process in every leaf cgroup.
+ * Then it creates A/G and creates a significant
+ * memory pressure in A.
+ *
+ * Then it checks actual memory usages and expects that:
+ * A/B    memory.current ~= 50M
+ * A/B/C  memory.current ~= 29M [memory.events:low > 0]
+ * A/B/D  memory.current ~= 21M [memory.events:low > 0]
+ * A/B/E  memory.current ~= 0   [memory.events:low == 0 if !memory_recursiveprot,
+ *				 undefined otherwise]
+ * A/B/F  memory.current  = 0   [memory.events:low == 0]
+ * (for origin of the numbers, see model in memcg_protection.m.)
+ *
+ * After that it tries to allocate more than there is
+ * unprotected memory in A available, and checks that:
+ * a) memory.min protects pagecache even in this case,
+ * b) memory.low allows reclaiming page cache with low events.
+ *
+ * Then we try to reclaim from A/B/C using memory.reclaim until its
+ * usage reaches 10M.
+ * This makes sure that:
+ * (a) We ignore the protection of the reclaim target memcg.
+ * (b) The previously calculated emin value (~29M) should be dismissed.
+ */
+static int test_memcg_protection(const char *root, bool min)
+{
+	int ret = KSFT_FAIL, rc;
+	char *parent[3] = {NULL};
+	char *children[4] = {NULL};
+	const char *attribute = min ? "memory.min" : "memory.low";
+	long c[4];
+	long current;
+	int i, attempts;
+	int fd;
+
+	fd = get_temp_fd();
+	if (fd < 0)
+		goto cleanup;
+
+	parent[0] = cg_name(root, "memcg_test_0");
+	if (!parent[0])
+		goto cleanup;
+
+	parent[1] = cg_name(parent[0], "memcg_test_1");
+	if (!parent[1])
+		goto cleanup;
+
+	parent[2] = cg_name(parent[0], "memcg_test_2");
+	if (!parent[2])
+		goto cleanup;
+
+	if (cg_create(parent[0]))
+		goto cleanup;
+
+	if (cg_read_long(parent[0], attribute)) {
+		/* No memory.min on older kernels is fine */
+		if (min)
+			ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (cg_write(parent[0], "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_write(parent[0], "memory.max", "200M"))
+		goto cleanup;
+
+	if (cg_write(parent[0], "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_create(parent[1]))
+		goto cleanup;
+
+	if (cg_write(parent[1], "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_create(parent[2]))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		children[i] = cg_name_indexed(parent[1], "child_memcg", i);
+		if (!children[i])
+			goto cleanup;
+
+		if (cg_create(children[i]))
+			goto cleanup;
+
+		if (i > 2)
+			continue;
+
+		cg_run_nowait(children[i], alloc_pagecache_50M_noexit,
+			      (void *)(long)fd);
+	}
+
+	if (cg_write(parent[1],   attribute, "50M"))
+		goto cleanup;
+	if (cg_write(children[0], attribute, "75M"))
+		goto cleanup;
+	if (cg_write(children[1], attribute, "25M"))
+		goto cleanup;
+	if (cg_write(children[2], attribute, "0"))
+		goto cleanup;
+	if (cg_write(children[3], attribute, "500M"))
+		goto cleanup;
+
+	attempts = 0;
+	while (!values_close(cg_read_long(parent[1], "memory.current"),
+			     MB(150), 3)) {
+		if (attempts++ > 5)
+			break;
+		sleep(1);
+	}
+
+	if (cg_run(parent[2], alloc_anon, (void *)MB(148)))
+		goto cleanup;
+
+	if (!values_close(cg_read_long(parent[1], "memory.current"), MB(50), 3))
+		goto cleanup;
+
+	for (i = 0; i < ARRAY_SIZE(children); i++)
+		c[i] = cg_read_long(children[i], "memory.current");
+
+	if (!values_close(c[0], MB(29), 15))
+		goto cleanup;
+
+	if (!values_close(c[1], MB(21), 20))
+		goto cleanup;
+
+	if (c[3] != 0)
+		goto cleanup;
+
+	rc = cg_run(parent[2], alloc_anon, (void *)MB(170));
+	if (min && !rc)
+		goto cleanup;
+	else if (!min && rc) {
+		fprintf(stderr,
+			"memory.low prevents from allocating anon memory\n");
+		goto cleanup;
+	}
+
+	current = min ? MB(50) : MB(30);
+	if (!values_close(cg_read_long(parent[1], "memory.current"), current, 3))
+		goto cleanup;
+
+	if (!reclaim_until(children[0], MB(10)))
+		goto cleanup;
+
+	if (min) {
+		ret = KSFT_PASS;
+		goto cleanup;
+	}
+
+	/*
+	 * Child 2 has memory.low=0, but some low protection may still be
+	 * distributed down from its parent with memory.low=50M if cgroup2
+	 * memory_recursiveprot mount option is enabled. Ignore the low
+	 * event count in this case.
+	 */
+	for (i = 0; i < ARRAY_SIZE(children); i++) {
+		int ignore_low_events_index = has_recursiveprot ? 2 : -1;
+		int no_low_events_index = 1;
+		long low, oom;
+
+		oom = cg_read_key_long(children[i], "memory.events", "oom ");
+		low = cg_read_key_long(children[i], "memory.events", "low ");
+
+		if (oom)
+			goto cleanup;
+		if (i == ignore_low_events_index)
+			continue;
+		if (i <= no_low_events_index && low <= 0)
+			goto cleanup;
+		if (i > no_low_events_index && low)
+			goto cleanup;
+
+	}
+
+	ret = KSFT_PASS;
+
+cleanup:
+	for (i = ARRAY_SIZE(children) - 1; i >= 0; i--) {
+		if (!children[i])
+			continue;
+
+		cg_destroy(children[i]);
+		free(children[i]);
+	}
+
+	for (i = ARRAY_SIZE(parent) - 1; i >= 0; i--) {
+		if (!parent[i])
+			continue;
+
+		cg_destroy(parent[i]);
+		free(parent[i]);
+	}
+	close(fd);
+	return ret;
+}
+
+static int test_memcg_min(const char *root)
+{
+	return test_memcg_protection(root, true);
+}
+
+static int test_memcg_low(const char *root)
+{
+	return test_memcg_protection(root, false);
+}
+
+static int alloc_pagecache_max_30M(const char *cgroup, void *arg)
+{
+	size_t size = MB(50);
+	int ret = -1;
+	long current, high, max;
+	int fd;
+
+	high = cg_read_long(cgroup, "memory.high");
+	max = cg_read_long(cgroup, "memory.max");
+	if (high != MB(30) && max != MB(30))
+		return -1;
+
+	fd = get_temp_fd();
+	if (fd < 0)
+		return -1;
+
+	if (alloc_pagecache(fd, size))
+		goto cleanup;
+
+	current = cg_read_long(cgroup, "memory.current");
+	if (!values_close(current, MB(30), 5))
+		goto cleanup;
+
+	ret = 0;
+
+cleanup:
+	close(fd);
+	return ret;
+
+}
+
+/*
+ * This test checks that memory.high limits the amount of
+ * memory which can be consumed by either anonymous memory
+ * or pagecache.
+ */
+static int test_memcg_high(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *memcg;
+	long high;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	if (cg_read_strcmp(memcg, "memory.high", "max\n"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.high", "30M"))
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_anon, (void *)MB(31)))
+		goto cleanup;
+
+	if (!cg_run(memcg, alloc_pagecache_50M_check, NULL))
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_pagecache_max_30M, NULL))
+		goto cleanup;
+
+	high = cg_read_key_long(memcg, "memory.events", "high ");
+	if (high <= 0)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+static int alloc_anon_mlock(const char *cgroup, void *arg)
+{
+	size_t size = (size_t)arg;
+	void *buf;
+
+	buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON,
+		   0, 0);
+	if (buf == MAP_FAILED)
+		return -1;
+
+	mlock(buf, size);
+	munmap(buf, size);
+	return 0;
+}
+
+/*
+ * This test checks that memory.high is able to throttle big single shot
+ * allocation i.e. large allocation within one kernel entry.
+ */
+static int test_memcg_high_sync(const char *root)
+{
+	int ret = KSFT_FAIL, pid, fd = -1;
+	char *memcg;
+	long pre_high, pre_max;
+	long post_high, post_max;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	pre_high = cg_read_key_long(memcg, "memory.events", "high ");
+	pre_max = cg_read_key_long(memcg, "memory.events", "max ");
+	if (pre_high < 0 || pre_max < 0)
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.high", "30M"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.max", "140M"))
+		goto cleanup;
+
+	fd = memcg_prepare_for_wait(memcg);
+	if (fd < 0)
+		goto cleanup;
+
+	pid = cg_run_nowait(memcg, alloc_anon_mlock, (void *)MB(200));
+	if (pid < 0)
+		goto cleanup;
+
+	cg_wait_for(fd);
+
+	post_high = cg_read_key_long(memcg, "memory.events", "high ");
+	post_max = cg_read_key_long(memcg, "memory.events", "max ");
+	if (post_high < 0 || post_max < 0)
+		goto cleanup;
+
+	if (pre_high == post_high || pre_max != post_max)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (fd >= 0)
+		close(fd);
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+/*
+ * This test checks that memory.max limits the amount of
+ * memory which can be consumed by either anonymous memory
+ * or pagecache.
+ */
+static int test_memcg_max(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *memcg;
+	long current, max;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	if (cg_read_strcmp(memcg, "memory.max", "max\n"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.max", "30M"))
+		goto cleanup;
+
+	/* Should be killed by OOM killer */
+	if (!cg_run(memcg, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_pagecache_max_30M, NULL))
+		goto cleanup;
+
+	current = cg_read_long(memcg, "memory.current");
+	if (current > MB(30) || !current)
+		goto cleanup;
+
+	max = cg_read_key_long(memcg, "memory.events", "max ");
+	if (max <= 0)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+/*
+ * Reclaim from @memcg until usage reaches @goal by writing to
+ * memory.reclaim.
+ *
+ * This function will return false if the usage is already below the
+ * goal.
+ *
+ * This function assumes that writing to memory.reclaim is the only
+ * source of change in memory.current (no concurrent allocations or
+ * reclaim).
+ *
+ * This function makes sure memory.reclaim is sane. It will return
+ * false if memory.reclaim's error codes do not make sense, even if
+ * the usage goal was satisfied.
+ */
+static bool reclaim_until(const char *memcg, long goal)
+{
+	char buf[64];
+	int retries, err;
+	long current, to_reclaim;
+	bool reclaimed = false;
+
+	for (retries = 5; retries > 0; retries--) {
+		current = cg_read_long(memcg, "memory.current");
+
+		if (current < goal || values_close(current, goal, 3))
+			break;
+		/* Did memory.reclaim return 0 incorrectly? */
+		else if (reclaimed)
+			return false;
+
+		to_reclaim = current - goal;
+		snprintf(buf, sizeof(buf), "%ld", to_reclaim);
+		err = cg_write(memcg, "memory.reclaim", buf);
+		if (!err)
+			reclaimed = true;
+		else if (err != -EAGAIN)
+			return false;
+	}
+	return reclaimed;
+}
+
+/*
+ * This test checks that memory.reclaim reclaims the given
+ * amount of memory (from both anon and file, if possible).
+ */
+static int test_memcg_reclaim(const char *root)
+{
+	int ret = KSFT_FAIL;
+	int fd = -1;
+	int retries;
+	char *memcg;
+	long current, expected_usage;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	current = cg_read_long(memcg, "memory.current");
+	if (current != 0)
+		goto cleanup;
+
+	fd = get_temp_fd();
+	if (fd < 0)
+		goto cleanup;
+
+	cg_run_nowait(memcg, alloc_pagecache_50M_noexit, (void *)(long)fd);
+
+	/*
+	 * If swap is enabled, try to reclaim from both anon and file, else try
+	 * to reclaim from file only.
+	 */
+	if (is_swap_enabled()) {
+		cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(50));
+		expected_usage = MB(100);
+	} else
+		expected_usage = MB(50);
+
+	/*
+	 * Wait until current usage reaches the expected usage (or we run out of
+	 * retries).
+	 */
+	retries = 5;
+	while (!values_close(cg_read_long(memcg, "memory.current"),
+			    expected_usage, 10)) {
+		if (retries--) {
+			sleep(1);
+			continue;
+		} else {
+			fprintf(stderr,
+				"failed to allocate %ld for memcg reclaim test\n",
+				expected_usage);
+			goto cleanup;
+		}
+	}
+
+	/*
+	 * Reclaim until current reaches 30M, this makes sure we hit both anon
+	 * and file if swap is enabled.
+	 */
+	if (!reclaim_until(memcg, MB(30)))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+cleanup:
+	cg_destroy(memcg);
+	free(memcg);
+	close(fd);
+
+	return ret;
+}
+
+static int alloc_anon_50M_check_swap(const char *cgroup, void *arg)
+{
+	long mem_max = (long)arg;
+	size_t size = MB(50);
+	char *buf, *ptr;
+	long mem_current, swap_current;
+	int ret = -1;
+
+	buf = malloc(size);
+	if (buf == NULL) {
+		fprintf(stderr, "malloc() failed\n");
+		return -1;
+	}
+
+	for (ptr = buf; ptr < buf + size; ptr += PAGE_SIZE)
+		*ptr = 0;
+
+	mem_current = cg_read_long(cgroup, "memory.current");
+	if (!mem_current || !values_close(mem_current, mem_max, 3))
+		goto cleanup;
+
+	swap_current = cg_read_long(cgroup, "memory.swap.current");
+	if (!swap_current ||
+	    !values_close(mem_current + swap_current, size, 3))
+		goto cleanup;
+
+	ret = 0;
+cleanup:
+	free(buf);
+	return ret;
+}
+
+/*
+ * This test checks that memory.swap.max limits the amount of
+ * anonymous memory which can be swapped out. Additionally, it verifies that
+ * memory.swap.peak reflects the high watermark and can be reset.
+ */
+static int test_memcg_swap_max_peak(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *memcg;
+	long max, peak;
+	struct stat ss;
+	int swap_peak_fd = -1, mem_peak_fd = -1;
+
+	/* any non-empty string resets */
+	static const char reset_string[] = "foobarbaz";
+
+	if (!is_swap_enabled())
+		return KSFT_SKIP;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.swap.current")) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	swap_peak_fd = cg_open(memcg, "memory.swap.peak",
+			       O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (swap_peak_fd == -1) {
+		if (errno == ENOENT)
+			ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	/*
+	 * Before we try to use memory.swap.peak's fd, try to figure out
+	 * whether this kernel supports writing to that file in the first
+	 * place. (by checking the writable bit on the file's st_mode)
+	 */
+	if (fstat(swap_peak_fd, &ss))
+		goto cleanup;
+
+	if ((ss.st_mode & S_IWUSR) == 0) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	mem_peak_fd = cg_open(memcg, "memory.peak", O_RDWR | O_APPEND | O_CLOEXEC);
+
+	if (mem_peak_fd == -1)
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.swap.peak"))
+		goto cleanup;
+
+	if (cg_read_long_fd(swap_peak_fd))
+		goto cleanup;
+
+	/* switch the swap and mem fds into local-peak tracking mode*/
+	int peak_reset = write(swap_peak_fd, reset_string, sizeof(reset_string));
+
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	if (cg_read_long_fd(swap_peak_fd))
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.peak"))
+		goto cleanup;
+
+	if (cg_read_long_fd(mem_peak_fd))
+		goto cleanup;
+
+	peak_reset = write(mem_peak_fd, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	if (cg_read_long_fd(mem_peak_fd))
+		goto cleanup;
+
+	if (cg_read_strcmp(memcg, "memory.max", "max\n"))
+		goto cleanup;
+
+	if (cg_read_strcmp(memcg, "memory.swap.max", "max\n"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "30M"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.max", "30M"))
+		goto cleanup;
+
+	/* Should be killed by OOM killer */
+	if (!cg_run(memcg, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.events", "oom ") != 1)
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 1)
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.swap.peak");
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long_fd(mem_peak_fd);
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long_fd(swap_peak_fd);
+	if (peak < MB(29))
+		goto cleanup;
+
+	/*
+	 * open, reset and close the peak swap on another FD to make sure
+	 * multiple extant fds don't corrupt the linked-list
+	 */
+	peak_reset = cg_write(memcg, "memory.swap.peak", (char *)reset_string);
+	if (peak_reset)
+		goto cleanup;
+
+	peak_reset = cg_write(memcg, "memory.peak", (char *)reset_string);
+	if (peak_reset)
+		goto cleanup;
+
+	/* actually reset on the fds */
+	peak_reset = write(swap_peak_fd, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	peak_reset = write(mem_peak_fd, reset_string, sizeof(reset_string));
+	if (peak_reset != sizeof(reset_string))
+		goto cleanup;
+
+	peak = cg_read_long_fd(swap_peak_fd);
+	if (peak > MB(10))
+		goto cleanup;
+
+	/*
+	 * The cgroup is now empty, but there may be a page or two associated
+	 * with the open FD accounted to it.
+	 */
+	peak = cg_read_long_fd(mem_peak_fd);
+	if (peak > MB(1))
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.peak") < MB(29))
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.swap.peak") < MB(29))
+		goto cleanup;
+
+	if (cg_run(memcg, alloc_anon_50M_check_swap, (void *)MB(30)))
+		goto cleanup;
+
+	max = cg_read_key_long(memcg, "memory.events", "max ");
+	if (max <= 0)
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.peak");
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long(memcg, "memory.swap.peak");
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long_fd(mem_peak_fd);
+	if (peak < MB(29))
+		goto cleanup;
+
+	peak = cg_read_long_fd(swap_peak_fd);
+	if (peak < MB(19))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (mem_peak_fd != -1 && close(mem_peak_fd))
+		ret = KSFT_FAIL;
+	if (swap_peak_fd != -1 && close(swap_peak_fd))
+		ret = KSFT_FAIL;
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM. Then it checks for oom and oom_kill events in
+ * memory.events.
+ */
+static int test_memcg_oom_events(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *memcg;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.max", "30M"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (!cg_run(memcg, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_read_strcmp(memcg, "cgroup.procs", ""))
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.events", "oom ") != 1)
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 1)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+struct tcp_server_args {
+	unsigned short port;
+	int ctl[2];
+};
+
+static int tcp_server(const char *cgroup, void *arg)
+{
+	struct tcp_server_args *srv_args = arg;
+	struct sockaddr_in6 saddr = { 0 };
+	socklen_t slen = sizeof(saddr);
+	int sk, client_sk, ctl_fd, yes = 1, ret = -1;
+
+	close(srv_args->ctl[0]);
+	ctl_fd = srv_args->ctl[1];
+
+	saddr.sin6_family = AF_INET6;
+	saddr.sin6_addr = in6addr_any;
+	saddr.sin6_port = htons(srv_args->port);
+
+	sk = socket(AF_INET6, SOCK_STREAM, 0);
+	if (sk < 0)
+		return ret;
+
+	if (setsockopt(sk, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0)
+		goto cleanup;
+
+	if (bind(sk, (struct sockaddr *)&saddr, slen)) {
+		write(ctl_fd, &errno, sizeof(errno));
+		goto cleanup;
+	}
+
+	if (listen(sk, 1))
+		goto cleanup;
+
+	ret = 0;
+	if (write(ctl_fd, &ret, sizeof(ret)) != sizeof(ret)) {
+		ret = -1;
+		goto cleanup;
+	}
+
+	client_sk = accept(sk, NULL, NULL);
+	if (client_sk < 0)
+		goto cleanup;
+
+	ret = -1;
+	for (;;) {
+		uint8_t buf[0x100000];
+
+		if (write(client_sk, buf, sizeof(buf)) <= 0) {
+			if (errno == ECONNRESET)
+				ret = 0;
+			break;
+		}
+	}
+
+	close(client_sk);
+
+cleanup:
+	close(sk);
+	return ret;
+}
+
+static int tcp_client(const char *cgroup, unsigned short port)
+{
+	const char server[] = "localhost";
+	struct addrinfo *ai;
+	char servport[6];
+	int retries = 0x10; /* nice round number */
+	int sk, ret;
+	long allocated;
+
+	allocated = cg_read_long(cgroup, "memory.current");
+	snprintf(servport, sizeof(servport), "%hd", port);
+	ret = getaddrinfo(server, servport, NULL, &ai);
+	if (ret)
+		return ret;
+
+	sk = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
+	if (sk < 0)
+		goto free_ainfo;
+
+	ret = connect(sk, ai->ai_addr, ai->ai_addrlen);
+	if (ret < 0)
+		goto close_sk;
+
+	ret = KSFT_FAIL;
+	while (retries--) {
+		uint8_t buf[0x100000];
+		long current, sock;
+
+		if (read(sk, buf, sizeof(buf)) <= 0)
+			goto close_sk;
+
+		current = cg_read_long(cgroup, "memory.current");
+		sock = cg_read_key_long(cgroup, "memory.stat", "sock ");
+
+		if (current < 0 || sock < 0)
+			goto close_sk;
+
+		/* exclude the memory not related to socket connection */
+		if (values_close(current - allocated, sock, 10)) {
+			ret = KSFT_PASS;
+			break;
+		}
+	}
+
+close_sk:
+	close(sk);
+free_ainfo:
+	freeaddrinfo(ai);
+	return ret;
+}
+
+/*
+ * This test checks socket memory accounting.
+ * The test forks a TCP server listens on a random port between 1000
+ * and 61000. Once it gets a client connection, it starts writing to
+ * its socket.
+ * The TCP client interleaves reads from the socket with check whether
+ * memory.current and memory.stat.sock are similar.
+ */
+static int test_memcg_sock(const char *root)
+{
+	int bind_retries = 5, ret = KSFT_FAIL, pid, err;
+	unsigned short port;
+	char *memcg;
+
+	memcg = cg_name(root, "memcg_test");
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	while (bind_retries--) {
+		struct tcp_server_args args;
+
+		if (pipe(args.ctl))
+			goto cleanup;
+
+		port = args.port = 1000 + rand() % 60000;
+
+		pid = cg_run_nowait(memcg, tcp_server, &args);
+		if (pid < 0)
+			goto cleanup;
+
+		close(args.ctl[1]);
+		if (read(args.ctl[0], &err, sizeof(err)) != sizeof(err))
+			goto cleanup;
+		close(args.ctl[0]);
+
+		if (!err)
+			break;
+		if (err != EADDRINUSE)
+			goto cleanup;
+
+		waitpid(pid, NULL, 0);
+	}
+
+	if (err == EADDRINUSE) {
+		ret = KSFT_SKIP;
+		goto cleanup;
+	}
+
+	if (tcp_client(memcg, port) != KSFT_PASS)
+		goto cleanup;
+
+	waitpid(pid, &err, 0);
+	if (WEXITSTATUS(err))
+		goto cleanup;
+
+	if (cg_read_long(memcg, "memory.current") < 0)
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.stat", "sock "))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes in the leaf were killed. It also checks that oom_events
+ * were propagated to the parent level.
+ */
+static int test_memcg_oom_group_leaf_events(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child;
+	long parent_oom_events;
+
+	parent = cg_name(root, "memcg_test_0");
+	child = cg_name(root, "memcg_test_0/memcg_test_1");
+
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "cgroup.subtree_control", "+memory"))
+		goto cleanup;
+
+	if (cg_write(child, "memory.max", "50M"))
+		goto cleanup;
+
+	if (cg_write(child, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(child, "memory.oom.group", "1"))
+		goto cleanup;
+
+	cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));
+	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+	if (!cg_run(child, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_test_proc_killed(child))
+		goto cleanup;
+
+	if (cg_read_key_long(child, "memory.events", "oom_kill ") <= 0)
+		goto cleanup;
+
+	parent_oom_events = cg_read_key_long(
+			parent, "memory.events", "oom_kill ");
+	/*
+	 * If memory_localevents is not enabled (the default), the parent should
+	 * count OOM events in its children groups. Otherwise, it should not
+	 * have observed any events.
+	 */
+	if (has_localevents && parent_oom_events != 0)
+		goto cleanup;
+	else if (!has_localevents && parent_oom_events <= 0)
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+
+	return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes in the parent and leaf were killed.
+ */
+static int test_memcg_oom_group_parent_events(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *parent, *child;
+
+	parent = cg_name(root, "memcg_test_0");
+	child = cg_name(root, "memcg_test_0/memcg_test_1");
+
+	if (!parent || !child)
+		goto cleanup;
+
+	if (cg_create(parent))
+		goto cleanup;
+
+	if (cg_create(child))
+		goto cleanup;
+
+	if (cg_write(parent, "memory.max", "80M"))
+		goto cleanup;
+
+	if (cg_write(parent, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(parent, "memory.oom.group", "1"))
+		goto cleanup;
+
+	cg_run_nowait(parent, alloc_anon_noexit, (void *) MB(60));
+	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+	cg_run_nowait(child, alloc_anon_noexit, (void *) MB(1));
+
+	if (!cg_run(child, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_test_proc_killed(child))
+		goto cleanup;
+	if (cg_test_proc_killed(parent))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (child)
+		cg_destroy(child);
+	if (parent)
+		cg_destroy(parent);
+	free(child);
+	free(parent);
+
+	return ret;
+}
+
+/*
+ * This test disables swapping and tries to allocate anonymous memory
+ * up to OOM with memory.group.oom set. Then it checks that all
+ * processes were killed except those set with OOM_SCORE_ADJ_MIN
+ */
+static int test_memcg_oom_group_score_events(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *memcg;
+	int safe_pid;
+
+	memcg = cg_name(root, "memcg_test_0");
+
+	if (!memcg)
+		goto cleanup;
+
+	if (cg_create(memcg))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.max", "50M"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.swap.max", "0"))
+		goto cleanup;
+
+	if (cg_write(memcg, "memory.oom.group", "1"))
+		goto cleanup;
+
+	safe_pid = cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1));
+	if (set_oom_adj_score(safe_pid, OOM_SCORE_ADJ_MIN))
+		goto cleanup;
+
+	cg_run_nowait(memcg, alloc_anon_noexit, (void *) MB(1));
+	if (!cg_run(memcg, alloc_anon, (void *)MB(100)))
+		goto cleanup;
+
+	if (cg_read_key_long(memcg, "memory.events", "oom_kill ") != 3)
+		goto cleanup;
+
+	if (kill(safe_pid, SIGKILL))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	if (memcg)
+		cg_destroy(memcg);
+	free(memcg);
+
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct memcg_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_memcg_subtree_control),
+	T(test_memcg_current_peak),
+	T(test_memcg_min),
+	T(test_memcg_low),
+	T(test_memcg_high),
+	T(test_memcg_high_sync),
+	T(test_memcg_max),
+	T(test_memcg_reclaim),
+	T(test_memcg_oom_events),
+	T(test_memcg_swap_max_peak),
+	T(test_memcg_sock),
+	T(test_memcg_oom_group_leaf_events),
+	T(test_memcg_oom_group_parent_events),
+	T(test_memcg_oom_group_score_events),
+};
+#undef T
+
+int main(int argc, char **argv)
+{
+	char root[PATH_MAX];
+	int i, proc_status;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	/*
+	 * Check that memory controller is available:
+	 * memory is listed in cgroup.controllers
+	 */
+	if (cg_read_strstr(root, "cgroup.controllers", "memory"))
+		ksft_exit_skip("memory controller isn't available\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
+	proc_status = proc_mount_contains("memory_recursiveprot");
+	if (proc_status < 0)
+		ksft_exit_skip("Failed to query cgroup mount option\n");
+	has_recursiveprot = proc_status;
+
+	proc_status = proc_mount_contains("memory_localevents");
+	if (proc_status < 0)
+		ksft_exit_skip("Failed to query cgroup mount option\n");
+	has_localevents = proc_status;
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_pids.c b/tools/testing/selftests/cgroup/test_pids.c
new file mode 100644
index 000000000000..9a387c815d2c
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_pids.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <linux/limits.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+static int run_success(const char *cgroup, void *arg)
+{
+	return 0;
+}
+
+static int run_pause(const char *cgroup, void *arg)
+{
+	return pause();
+}
+
+/*
+ * This test checks that pids.max prevents forking new children above the
+ * specified limit in the cgroup.
+ */
+static int test_pids_max(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cg_pids;
+	int pid;
+
+	cg_pids = cg_name(root, "pids_test");
+	if (!cg_pids)
+		goto cleanup;
+
+	if (cg_create(cg_pids))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_pids, "pids.max", "max\n"))
+		goto cleanup;
+
+	if (cg_write(cg_pids, "pids.max", "2"))
+		goto cleanup;
+
+	if (cg_enter_current(cg_pids))
+		goto cleanup;
+
+	pid = cg_run_nowait(cg_pids, run_pause, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_run_nowait(cg_pids, run_success, NULL) != -1 || errno != EAGAIN)
+		goto cleanup;
+
+	if (kill(pid, SIGINT))
+		goto cleanup;
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	cg_destroy(cg_pids);
+	free(cg_pids);
+
+	return ret;
+}
+
+/*
+ * This test checks that pids.events are counted in cgroup associated with pids.max
+ */
+static int test_pids_events(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *cg_parent = NULL, *cg_child = NULL;
+	int pid;
+
+	if (cgroup_feature("pids_localevents") <= 0)
+		return KSFT_SKIP;
+
+	cg_parent = cg_name(root, "pids_parent");
+	cg_child = cg_name(cg_parent, "pids_child");
+	if (!cg_parent || !cg_child)
+		goto cleanup;
+
+	if (cg_create(cg_parent))
+		goto cleanup;
+	if (cg_write(cg_parent, "cgroup.subtree_control", "+pids"))
+		goto cleanup;
+	if (cg_create(cg_child))
+		goto cleanup;
+
+	if (cg_write(cg_parent, "pids.max", "2"))
+		goto cleanup;
+
+	if (cg_read_strcmp(cg_child, "pids.max", "max\n"))
+		goto cleanup;
+
+	if (cg_enter_current(cg_child))
+		goto cleanup;
+
+	pid = cg_run_nowait(cg_child, run_pause, NULL);
+	if (pid < 0)
+		goto cleanup;
+
+	if (cg_run_nowait(cg_child, run_success, NULL) != -1 || errno != EAGAIN)
+		goto cleanup;
+
+	if (kill(pid, SIGINT))
+		goto cleanup;
+
+	if (cg_read_key_long(cg_child, "pids.events", "max ") != 0)
+		goto cleanup;
+	if (cg_read_key_long(cg_parent, "pids.events", "max ") != 1)
+		goto cleanup;
+
+
+	ret = KSFT_PASS;
+
+cleanup:
+	cg_enter_current(root);
+	if (cg_child)
+		cg_destroy(cg_child);
+	if (cg_parent)
+		cg_destroy(cg_parent);
+	free(cg_child);
+	free(cg_parent);
+
+	return ret;
+}
+
+
+
+#define T(x) { x, #x }
+struct pids_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_pids_max),
+	T(test_pids_events),
+};
+#undef T
+
+int main(int argc, char **argv)
+{
+	char root[PATH_MAX];
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	/*
+	 * Check that pids controller is available:
+	 * pids is listed in cgroup.controllers
+	 */
+	if (cg_read_strstr(root, "cgroup.controllers", "pids"))
+		ksft_exit_skip("pids controller isn't available\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "pids"))
+		if (cg_write(root, "cgroup.subtree_control", "+pids"))
+			ksft_exit_skip("Failed to set pids controller\n");
+
+	for (int i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/test_stress.sh b/tools/testing/selftests/cgroup/test_stress.sh
new file mode 100755
index 000000000000..3c9c4554d5f6
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_stress.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+./with_stress.sh -s subsys -s fork ${OUTPUT:-.}/test_core
diff --git a/tools/testing/selftests/cgroup/test_zswap.c b/tools/testing/selftests/cgroup/test_zswap.c
new file mode 100644
index 000000000000..64ebc3f3f203
--- /dev/null
+++ b/tools/testing/selftests/cgroup/test_zswap.c
@@ -0,0 +1,636 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <linux/limits.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <signal.h>
+#include <sys/sysinfo.h>
+#include <string.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "cgroup_util.h"
+
+static int read_int(const char *path, size_t *value)
+{
+	FILE *file;
+	int ret = 0;
+
+	file = fopen(path, "r");
+	if (!file)
+		return -1;
+	if (fscanf(file, "%ld", value) != 1)
+		ret = -1;
+	fclose(file);
+	return ret;
+}
+
+static int set_min_free_kb(size_t value)
+{
+	FILE *file;
+	int ret;
+
+	file = fopen("/proc/sys/vm/min_free_kbytes", "w");
+	if (!file)
+		return -1;
+	ret = fprintf(file, "%ld\n", value);
+	fclose(file);
+	return ret;
+}
+
+static int read_min_free_kb(size_t *value)
+{
+	return read_int("/proc/sys/vm/min_free_kbytes", value);
+}
+
+static int get_zswap_stored_pages(size_t *value)
+{
+	return read_int("/sys/kernel/debug/zswap/stored_pages", value);
+}
+
+static long get_cg_wb_count(const char *cg)
+{
+	return cg_read_key_long(cg, "memory.stat", "zswpwb");
+}
+
+static long get_zswpout(const char *cgroup)
+{
+	return cg_read_key_long(cgroup, "memory.stat", "zswpout ");
+}
+
+static int allocate_and_read_bytes(const char *cgroup, void *arg)
+{
+	size_t size = (size_t)arg;
+	char *mem = (char *)malloc(size);
+	int ret = 0;
+
+	if (!mem)
+		return -1;
+	for (int i = 0; i < size; i += 4095)
+		mem[i] = 'a';
+
+	/* Go through the allocated memory to (z)swap in and out pages */
+	for (int i = 0; i < size; i += 4095) {
+		if (mem[i] != 'a')
+			ret = -1;
+	}
+
+	free(mem);
+	return ret;
+}
+
+static int allocate_bytes(const char *cgroup, void *arg)
+{
+	size_t size = (size_t)arg;
+	char *mem = (char *)malloc(size);
+
+	if (!mem)
+		return -1;
+	for (int i = 0; i < size; i += 4095)
+		mem[i] = 'a';
+	free(mem);
+	return 0;
+}
+
+static char *setup_test_group_1M(const char *root, const char *name)
+{
+	char *group_name = cg_name(root, name);
+
+	if (!group_name)
+		return NULL;
+	if (cg_create(group_name))
+		goto fail;
+	if (cg_write(group_name, "memory.max", "1M")) {
+		cg_destroy(group_name);
+		goto fail;
+	}
+	return group_name;
+fail:
+	free(group_name);
+	return NULL;
+}
+
+/*
+ * Sanity test to check that pages are written into zswap.
+ */
+static int test_zswap_usage(const char *root)
+{
+	long zswpout_before, zswpout_after;
+	int ret = KSFT_FAIL;
+	char *test_group;
+
+	test_group = cg_name(root, "no_shrink_test");
+	if (!test_group)
+		goto out;
+	if (cg_create(test_group))
+		goto out;
+	if (cg_write(test_group, "memory.max", "1M"))
+		goto out;
+
+	zswpout_before = get_zswpout(test_group);
+	if (zswpout_before < 0) {
+		ksft_print_msg("Failed to get zswpout\n");
+		goto out;
+	}
+
+	/* Allocate more than memory.max to push memory into zswap */
+	if (cg_run(test_group, allocate_bytes, (void *)MB(4)))
+		goto out;
+
+	/* Verify that pages come into zswap */
+	zswpout_after = get_zswpout(test_group);
+	if (zswpout_after <= zswpout_before) {
+		ksft_print_msg("zswpout does not increase after test program\n");
+		goto out;
+	}
+	ret = KSFT_PASS;
+
+out:
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+/*
+ * Check that when memory.zswap.max = 0, no pages can go to the zswap pool for
+ * the cgroup.
+ */
+static int test_swapin_nozswap(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *test_group;
+	long swap_peak, zswpout;
+
+	test_group = cg_name(root, "no_zswap_test");
+	if (!test_group)
+		goto out;
+	if (cg_create(test_group))
+		goto out;
+	if (cg_write(test_group, "memory.max", "8M"))
+		goto out;
+	if (cg_write(test_group, "memory.zswap.max", "0"))
+		goto out;
+
+	/* Allocate and read more than memory.max to trigger swapin */
+	if (cg_run(test_group, allocate_and_read_bytes, (void *)MB(32)))
+		goto out;
+
+	/* Verify that pages are swapped out, but no zswap happened */
+	swap_peak = cg_read_long(test_group, "memory.swap.peak");
+	if (swap_peak < 0) {
+		ksft_print_msg("failed to get cgroup's swap_peak\n");
+		goto out;
+	}
+
+	if (swap_peak < MB(24)) {
+		ksft_print_msg("at least 24MB of memory should be swapped out\n");
+		goto out;
+	}
+
+	zswpout = get_zswpout(test_group);
+	if (zswpout < 0) {
+		ksft_print_msg("failed to get zswpout\n");
+		goto out;
+	}
+
+	if (zswpout > 0) {
+		ksft_print_msg("zswapout > 0 when memory.zswap.max = 0\n");
+		goto out;
+	}
+
+	ret = KSFT_PASS;
+
+out:
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+/* Simple test to verify the (z)swapin code paths */
+static int test_zswapin(const char *root)
+{
+	int ret = KSFT_FAIL;
+	char *test_group;
+	long zswpin;
+
+	test_group = cg_name(root, "zswapin_test");
+	if (!test_group)
+		goto out;
+	if (cg_create(test_group))
+		goto out;
+	if (cg_write(test_group, "memory.max", "8M"))
+		goto out;
+	if (cg_write(test_group, "memory.zswap.max", "max"))
+		goto out;
+
+	/* Allocate and read more than memory.max to trigger (z)swap in */
+	if (cg_run(test_group, allocate_and_read_bytes, (void *)MB(32)))
+		goto out;
+
+	zswpin = cg_read_key_long(test_group, "memory.stat", "zswpin ");
+	if (zswpin < 0) {
+		ksft_print_msg("failed to get zswpin\n");
+		goto out;
+	}
+
+	if (zswpin < MB(24) / PAGE_SIZE) {
+		ksft_print_msg("at least 24MB should be brought back from zswap\n");
+		goto out;
+	}
+
+	ret = KSFT_PASS;
+
+out:
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+/*
+ * Attempt writeback with the following steps:
+ * 1. Allocate memory.
+ * 2. Reclaim memory equal to the amount that was allocated in step 1.
+      This will move it into zswap.
+ * 3. Save current zswap usage.
+ * 4. Move the memory allocated in step 1 back in from zswap.
+ * 5. Set zswap.max to half the amount that was recorded in step 3.
+ * 6. Attempt to reclaim memory equal to the amount that was allocated,
+      this will either trigger writeback if it's enabled, or reclamation
+      will fail if writeback is disabled as there isn't enough zswap space.
+ */
+static int attempt_writeback(const char *cgroup, void *arg)
+{
+	long pagesize = sysconf(_SC_PAGESIZE);
+	size_t memsize = MB(4);
+	char buf[pagesize];
+	long zswap_usage;
+	bool wb_enabled = *(bool *) arg;
+	int ret = -1;
+	char *mem;
+
+	mem = (char *)malloc(memsize);
+	if (!mem)
+		return ret;
+
+	/*
+	 * Fill half of each page with increasing data, and keep other
+	 * half empty, this will result in data that is still compressible
+	 * and ends up in zswap, with material zswap usage.
+	 */
+	for (int i = 0; i < pagesize; i++)
+		buf[i] = i < pagesize/2 ? (char) i : 0;
+
+	for (int i = 0; i < memsize; i += pagesize)
+		memcpy(&mem[i], buf, pagesize);
+
+	/* Try and reclaim allocated memory */
+	if (cg_write_numeric(cgroup, "memory.reclaim", memsize)) {
+		ksft_print_msg("Failed to reclaim all of the requested memory\n");
+		goto out;
+	}
+
+	zswap_usage = cg_read_long(cgroup, "memory.zswap.current");
+
+	/* zswpin */
+	for (int i = 0; i < memsize; i += pagesize) {
+		if (memcmp(&mem[i], buf, pagesize)) {
+			ksft_print_msg("invalid memory\n");
+			goto out;
+		}
+	}
+
+	if (cg_write_numeric(cgroup, "memory.zswap.max", zswap_usage/2))
+		goto out;
+
+	/*
+	 * If writeback is enabled, trying to reclaim memory now will trigger a
+	 * writeback as zswap.max is half of what was needed when reclaim ran the first time.
+	 * If writeback is disabled, memory reclaim will fail as zswap is limited and
+	 * it can't writeback to swap.
+	 */
+	ret = cg_write_numeric(cgroup, "memory.reclaim", memsize);
+	if (!wb_enabled)
+		ret = (ret == -EAGAIN) ? 0 : -1;
+
+out:
+	free(mem);
+	return ret;
+}
+
+static int test_zswap_writeback_one(const char *cgroup, bool wb)
+{
+	long zswpwb_before, zswpwb_after;
+
+	zswpwb_before = get_cg_wb_count(cgroup);
+	if (zswpwb_before != 0) {
+		ksft_print_msg("zswpwb_before = %ld instead of 0\n", zswpwb_before);
+		return -1;
+	}
+
+	if (cg_run(cgroup, attempt_writeback, (void *) &wb))
+		return -1;
+
+	/* Verify that zswap writeback occurred only if writeback was enabled */
+	zswpwb_after = get_cg_wb_count(cgroup);
+	if (zswpwb_after < 0)
+		return -1;
+
+	if (wb != !!zswpwb_after) {
+		ksft_print_msg("zswpwb_after is %ld while wb is %s\n",
+				zswpwb_after, wb ? "enabled" : "disabled");
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Test to verify the zswap writeback path */
+static int test_zswap_writeback(const char *root, bool wb)
+{
+	int ret = KSFT_FAIL;
+	char *test_group, *test_group_child = NULL;
+
+	if (cg_read_strcmp(root, "memory.zswap.writeback", "1"))
+		return KSFT_SKIP;
+
+	test_group = cg_name(root, "zswap_writeback_test");
+	if (!test_group)
+		goto out;
+	if (cg_create(test_group))
+		goto out;
+	if (cg_write(test_group, "memory.zswap.writeback", wb ? "1" : "0"))
+		goto out;
+
+	if (test_zswap_writeback_one(test_group, wb))
+		goto out;
+
+	/* Reset memory.zswap.max to max (modified by attempt_writeback), and
+	 * set up child cgroup, whose memory.zswap.writeback is hardcoded to 1.
+	 * Thus, the parent's setting shall be what's in effect. */
+	if (cg_write(test_group, "memory.zswap.max", "max"))
+		goto out;
+	if (cg_write(test_group, "cgroup.subtree_control", "+memory"))
+		goto out;
+
+	test_group_child = cg_name(test_group, "zswap_writeback_test_child");
+	if (!test_group_child)
+		goto out;
+	if (cg_create(test_group_child))
+		goto out;
+	if (cg_write(test_group_child, "memory.zswap.writeback", "1"))
+		goto out;
+
+	if (test_zswap_writeback_one(test_group_child, wb))
+		goto out;
+
+	ret = KSFT_PASS;
+
+out:
+	if (test_group_child) {
+		cg_destroy(test_group_child);
+		free(test_group_child);
+	}
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+static int test_zswap_writeback_enabled(const char *root)
+{
+	return test_zswap_writeback(root, true);
+}
+
+static int test_zswap_writeback_disabled(const char *root)
+{
+	return test_zswap_writeback(root, false);
+}
+
+/*
+ * When trying to store a memcg page in zswap, if the memcg hits its memory
+ * limit in zswap, writeback should affect only the zswapped pages of that
+ * memcg.
+ */
+static int test_no_invasive_cgroup_shrink(const char *root)
+{
+	int ret = KSFT_FAIL;
+	size_t control_allocation_size = MB(10);
+	char *control_allocation = NULL, *wb_group = NULL, *control_group = NULL;
+
+	wb_group = setup_test_group_1M(root, "per_memcg_wb_test1");
+	if (!wb_group)
+		return KSFT_FAIL;
+	if (cg_write(wb_group, "memory.zswap.max", "10K"))
+		goto out;
+	control_group = setup_test_group_1M(root, "per_memcg_wb_test2");
+	if (!control_group)
+		goto out;
+
+	/* Push some test_group2 memory into zswap */
+	if (cg_enter_current(control_group))
+		goto out;
+	control_allocation = malloc(control_allocation_size);
+	for (int i = 0; i < control_allocation_size; i += 4095)
+		control_allocation[i] = 'a';
+	if (cg_read_key_long(control_group, "memory.stat", "zswapped") < 1)
+		goto out;
+
+	/* Allocate 10x memory.max to push wb_group memory into zswap and trigger wb */
+	if (cg_run(wb_group, allocate_bytes, (void *)MB(10)))
+		goto out;
+
+	/* Verify that only zswapped memory from gwb_group has been written back */
+	if (get_cg_wb_count(wb_group) > 0 && get_cg_wb_count(control_group) == 0)
+		ret = KSFT_PASS;
+out:
+	cg_enter_current(root);
+	if (control_group) {
+		cg_destroy(control_group);
+		free(control_group);
+	}
+	cg_destroy(wb_group);
+	free(wb_group);
+	if (control_allocation)
+		free(control_allocation);
+	return ret;
+}
+
+struct no_kmem_bypass_child_args {
+	size_t target_alloc_bytes;
+	size_t child_allocated;
+};
+
+static int no_kmem_bypass_child(const char *cgroup, void *arg)
+{
+	struct no_kmem_bypass_child_args *values = arg;
+	void *allocation;
+
+	allocation = malloc(values->target_alloc_bytes);
+	if (!allocation) {
+		values->child_allocated = true;
+		return -1;
+	}
+	for (long i = 0; i < values->target_alloc_bytes; i += 4095)
+		((char *)allocation)[i] = 'a';
+	values->child_allocated = true;
+	pause();
+	free(allocation);
+	return 0;
+}
+
+/*
+ * When pages owned by a memcg are pushed to zswap by kswapd, they should be
+ * charged to that cgroup. This wasn't the case before commit
+ * cd08d80ecdac("mm: correctly charge compressed memory to its memcg").
+ *
+ * The test first allocates memory in a memcg, then raises min_free_kbytes to
+ * a very high value so that the allocation falls below low wm, then makes
+ * another allocation to trigger kswapd that should push the memcg-owned pages
+ * to zswap and verifies that the zswap pages are correctly charged.
+ *
+ * To be run on a VM with at most 4G of memory.
+ */
+static int test_no_kmem_bypass(const char *root)
+{
+	size_t min_free_kb_high, min_free_kb_low, min_free_kb_original;
+	struct no_kmem_bypass_child_args *values;
+	size_t trigger_allocation_size;
+	int wait_child_iteration = 0;
+	long stored_pages_threshold;
+	struct sysinfo sys_info;
+	int ret = KSFT_FAIL;
+	int child_status;
+	char *test_group = NULL;
+	pid_t child_pid;
+
+	/* Read sys info and compute test values accordingly */
+	if (sysinfo(&sys_info) != 0)
+		return KSFT_FAIL;
+	if (sys_info.totalram > 5000000000)
+		return KSFT_SKIP;
+	values = mmap(0, sizeof(struct no_kmem_bypass_child_args), PROT_READ |
+			PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	if (values == MAP_FAILED)
+		return KSFT_FAIL;
+	if (read_min_free_kb(&min_free_kb_original))
+		return KSFT_FAIL;
+	min_free_kb_high = sys_info.totalram / 2000;
+	min_free_kb_low = sys_info.totalram / 500000;
+	values->target_alloc_bytes = (sys_info.totalram - min_free_kb_high * 1000) +
+		sys_info.totalram * 5 / 100;
+	stored_pages_threshold = sys_info.totalram / 5 / 4096;
+	trigger_allocation_size = sys_info.totalram / 20;
+
+	/* Set up test memcg */
+	test_group = cg_name(root, "kmem_bypass_test");
+	if (!test_group)
+		goto out;
+
+	/* Spawn memcg child and wait for it to allocate */
+	set_min_free_kb(min_free_kb_low);
+	if (cg_create(test_group))
+		goto out;
+	values->child_allocated = false;
+	child_pid = cg_run_nowait(test_group, no_kmem_bypass_child, values);
+	if (child_pid < 0)
+		goto out;
+	while (!values->child_allocated && wait_child_iteration++ < 10000)
+		usleep(1000);
+
+	/* Try to wakeup kswapd and let it push child memory to zswap */
+	set_min_free_kb(min_free_kb_high);
+	for (int i = 0; i < 20; i++) {
+		size_t stored_pages;
+		char *trigger_allocation = malloc(trigger_allocation_size);
+
+		if (!trigger_allocation)
+			break;
+		for (int i = 0; i < trigger_allocation_size; i += 4095)
+			trigger_allocation[i] = 'b';
+		usleep(100000);
+		free(trigger_allocation);
+		if (get_zswap_stored_pages(&stored_pages))
+			break;
+		if (stored_pages < 0)
+			break;
+		/* If memory was pushed to zswap, verify it belongs to memcg */
+		if (stored_pages > stored_pages_threshold) {
+			int zswapped = cg_read_key_long(test_group, "memory.stat", "zswapped ");
+			int delta = stored_pages * 4096 - zswapped;
+			int result_ok = delta < stored_pages * 4096 / 4;
+
+			ret = result_ok ? KSFT_PASS : KSFT_FAIL;
+			break;
+		}
+	}
+
+	kill(child_pid, SIGTERM);
+	waitpid(child_pid, &child_status, 0);
+out:
+	set_min_free_kb(min_free_kb_original);
+	cg_destroy(test_group);
+	free(test_group);
+	return ret;
+}
+
+#define T(x) { x, #x }
+struct zswap_test {
+	int (*fn)(const char *root);
+	const char *name;
+} tests[] = {
+	T(test_zswap_usage),
+	T(test_swapin_nozswap),
+	T(test_zswapin),
+	T(test_zswap_writeback_enabled),
+	T(test_zswap_writeback_disabled),
+	T(test_no_kmem_bypass),
+	T(test_no_invasive_cgroup_shrink),
+};
+#undef T
+
+static bool zswap_configured(void)
+{
+	return access("/sys/module/zswap", F_OK) == 0;
+}
+
+int main(int argc, char **argv)
+{
+	char root[PATH_MAX];
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	if (cg_find_unified_root(root, sizeof(root), NULL))
+		ksft_exit_skip("cgroup v2 isn't mounted\n");
+
+	if (!zswap_configured())
+		ksft_exit_skip("zswap isn't configured\n");
+
+	/*
+	 * Check that memory controller is available:
+	 * memory is listed in cgroup.controllers
+	 */
+	if (cg_read_strstr(root, "cgroup.controllers", "memory"))
+		ksft_exit_skip("memory controller isn't available\n");
+
+	if (cg_read_strstr(root, "cgroup.subtree_control", "memory"))
+		if (cg_write(root, "cgroup.subtree_control", "+memory"))
+			ksft_exit_skip("Failed to set memory controller\n");
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		switch (tests[i].fn(root)) {
+		case KSFT_PASS:
+			ksft_test_result_pass("%s\n", tests[i].name);
+			break;
+		case KSFT_SKIP:
+			ksft_test_result_skip("%s\n", tests[i].name);
+			break;
+		default:
+			ksft_test_result_fail("%s\n", tests[i].name);
+			break;
+		}
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/cgroup/wait_inotify.c b/tools/testing/selftests/cgroup/wait_inotify.c
new file mode 100644
index 000000000000..e11b431e1b62
--- /dev/null
+++ b/tools/testing/selftests/cgroup/wait_inotify.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Wait until an inotify event on the given cgroup file.
+ */
+#include <linux/limits.h>
+#include <sys/inotify.h>
+#include <sys/mman.h>
+#include <sys/ptrace.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+static const char usage[] = "Usage: %s [-v] <cgroup_file>\n";
+static char *file;
+static int verbose;
+
+static inline void fail_message(char *msg)
+{
+	fprintf(stderr, msg, file);
+	exit(1);
+}
+
+int main(int argc, char *argv[])
+{
+	char *cmd = argv[0];
+	int c, fd;
+	struct pollfd fds = { .events = POLLIN, };
+
+	while ((c = getopt(argc, argv, "v")) != -1) {
+		switch (c) {
+		case 'v':
+			verbose++;
+			break;
+		}
+		argv++, argc--;
+	}
+
+	if (argc != 2) {
+		fprintf(stderr, usage, cmd);
+		return -1;
+	}
+	file = argv[1];
+	fd = open(file, O_RDONLY);
+	if (fd < 0)
+		fail_message("Cgroup file %s not found!\n");
+	close(fd);
+
+	fd = inotify_init();
+	if (fd < 0)
+		fail_message("inotify_init() fails on %s!\n");
+	if (inotify_add_watch(fd, file, IN_MODIFY) < 0)
+		fail_message("inotify_add_watch() fails on %s!\n");
+	fds.fd = fd;
+
+	/*
+	 * poll waiting loop
+	 */
+	for (;;) {
+		int ret = poll(&fds, 1, 10000);
+
+		if (ret < 0) {
+			if (errno == EINTR)
+				continue;
+			perror("poll");
+			exit(1);
+		}
+		if ((ret > 0) && (fds.revents & POLLIN))
+			break;
+	}
+	if (verbose) {
+		struct inotify_event events[10];
+		long len;
+
+		usleep(1000);
+		len = read(fd, events, sizeof(events));
+		printf("Number of events read = %ld\n",
+			len/sizeof(struct inotify_event));
+	}
+	close(fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/cgroup/with_stress.sh b/tools/testing/selftests/cgroup/with_stress.sh
new file mode 100755
index 000000000000..e28c35008f5b
--- /dev/null
+++ b/tools/testing/selftests/cgroup/with_stress.sh
@@ -0,0 +1,101 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+stress_fork()
+{
+	while true ; do
+		/usr/bin/true
+		sleep 0.01
+	done
+}
+
+stress_subsys()
+{
+	local verb=+
+	while true ; do
+		echo $verb$subsys_ctrl >$sysfs/cgroup.subtree_control
+		[ $verb = "+" ] && verb=- || verb=+
+		# incommensurable period with other stresses
+		sleep 0.011
+	done
+}
+
+init_and_check()
+{
+	sysfs=`mount -t cgroup2 | head -1 | awk '{ print $3 }'`
+	if [ ! -d "$sysfs" ]; then
+		echo "Skipping: cgroup2 is not mounted" >&2
+		exit $ksft_skip
+	fi
+
+	if ! echo +$subsys_ctrl >$sysfs/cgroup.subtree_control ; then
+		echo "Skipping: cannot enable $subsys_ctrl in $sysfs" >&2
+		exit $ksft_skip
+	fi
+
+	if ! echo -$subsys_ctrl >$sysfs/cgroup.subtree_control ; then
+		echo "Skipping: cannot disable $subsys_ctrl in $sysfs" >&2
+		exit $ksft_skip
+	fi
+}
+
+declare -a stresses
+declare -a stress_pids
+duration=5
+rc=0
+subsys_ctrl=cpuset
+sysfs=
+
+while getopts c:d:hs: opt; do
+	case $opt in
+	c)
+		subsys_ctrl=$OPTARG
+		;;
+	d)
+		duration=$OPTARG
+		;;
+	h)
+		echo "Usage $0 [ -s stress ] ... [ -d duration ] [-c controller] cmd args .."
+		echo -e "\t default duration $duration seconds"
+		echo -e "\t default controller $subsys_ctrl"
+		exit
+		;;
+	s)
+		func=stress_$OPTARG
+		if [ "x$(type -t $func)" != "xfunction" ] ; then
+			echo "Unknown stress $OPTARG"
+			exit 1
+		fi
+		stresses+=($func)
+		;;
+	esac
+done
+shift $((OPTIND - 1))
+
+init_and_check
+
+for s in ${stresses[*]} ; do
+	$s &
+	stress_pids+=($!)
+done
+
+
+time=0
+start=$(date +%s)
+
+while [ $time -lt $duration ] ; do
+	$*
+	rc=$?
+	[ $rc -eq 0 ] || break
+	time=$(($(date +%s) - $start))
+done
+
+for pid in ${stress_pids[*]} ; do
+	kill -SIGTERM $pid
+	wait $pid
+done
+
+exit $rc
diff --git a/tools/testing/selftests/clone3/.gitignore b/tools/testing/selftests/clone3/.gitignore
new file mode 100644
index 000000000000..83c0f6246055
--- /dev/null
+++ b/tools/testing/selftests/clone3/.gitignore
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+clone3
+clone3_clear_sighand
+clone3_set_tid
+clone3_cap_checkpoint_restore
diff --git a/tools/testing/selftests/clone3/Makefile b/tools/testing/selftests/clone3/Makefile
new file mode 100644
index 000000000000..84832c369a2e
--- /dev/null
+++ b/tools/testing/selftests/clone3/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -g -std=gnu99 $(KHDR_INCLUDES)
+LDLIBS += -lcap
+
+TEST_GEN_PROGS := clone3 clone3_clear_sighand clone3_set_tid \
+	clone3_cap_checkpoint_restore
+
+include ../lib.mk
diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
new file mode 100644
index 000000000000..289e0c7c1f09
--- /dev/null
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -0,0 +1,342 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Based on Christian Brauner's clone3() example */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sched.h>
+
+#include "kselftest.h"
+#include "clone3_selftests.h"
+
+enum test_mode {
+	CLONE3_ARGS_NO_TEST,
+	CLONE3_ARGS_ALL_0,
+	CLONE3_ARGS_INVAL_EXIT_SIGNAL_BIG,
+	CLONE3_ARGS_INVAL_EXIT_SIGNAL_NEG,
+	CLONE3_ARGS_INVAL_EXIT_SIGNAL_CSIG,
+	CLONE3_ARGS_INVAL_EXIT_SIGNAL_NSIG,
+};
+
+static int call_clone3(uint64_t flags, size_t size, enum test_mode test_mode)
+{
+	struct __clone_args args = {
+		.flags = flags,
+		.exit_signal = SIGCHLD,
+	};
+
+	struct clone_args_extended {
+		struct __clone_args args;
+		__aligned_u64 excess_space[2];
+	} args_ext;
+
+	pid_t pid = -1;
+	int status;
+
+	memset(&args_ext, 0, sizeof(args_ext));
+	if (size > sizeof(struct __clone_args))
+		args_ext.excess_space[1] = 1;
+
+	if (size == 0)
+		size = sizeof(struct __clone_args);
+
+	switch (test_mode) {
+	case CLONE3_ARGS_NO_TEST:
+		/*
+		 * Uses default 'flags' and 'SIGCHLD'
+		 * assignment.
+		 */
+		break;
+	case CLONE3_ARGS_ALL_0:
+		args.flags = 0;
+		args.exit_signal = 0;
+		break;
+	case CLONE3_ARGS_INVAL_EXIT_SIGNAL_BIG:
+		args.exit_signal = 0xbadc0ded00000000ULL;
+		break;
+	case CLONE3_ARGS_INVAL_EXIT_SIGNAL_NEG:
+		args.exit_signal = 0x0000000080000000ULL;
+		break;
+	case CLONE3_ARGS_INVAL_EXIT_SIGNAL_CSIG:
+		args.exit_signal = 0x0000000000000100ULL;
+		break;
+	case CLONE3_ARGS_INVAL_EXIT_SIGNAL_NSIG:
+		args.exit_signal = 0x00000000000000f0ULL;
+		break;
+	}
+
+	memcpy(&args_ext.args, &args, sizeof(struct __clone_args));
+
+	pid = sys_clone3((struct __clone_args *)&args_ext, size);
+	if (pid < 0) {
+		ksft_print_msg("%s - Failed to create new process\n",
+				strerror(errno));
+		return -errno;
+	}
+
+	if (pid == 0) {
+		ksft_print_msg("I am the child, my PID is %d\n", getpid());
+		_exit(EXIT_SUCCESS);
+	}
+
+	ksft_print_msg("I am the parent (%d). My child's pid is %d\n",
+			getpid(), pid);
+
+	if (waitpid(-1, &status, __WALL) < 0) {
+		ksft_print_msg("waitpid() returned %s\n", strerror(errno));
+		return -errno;
+	}
+	if (!WIFEXITED(status)) {
+		ksft_print_msg("Child did not exit normally, status 0x%x\n",
+			       status);
+		return EXIT_FAILURE;
+	}
+	if (WEXITSTATUS(status))
+		return WEXITSTATUS(status);
+
+	return 0;
+}
+
+static bool test_clone3(uint64_t flags, size_t size, int expected,
+			enum test_mode test_mode)
+{
+	int ret;
+
+	ksft_print_msg(
+		"[%d] Trying clone3() with flags %#" PRIx64 " (size %zu)\n",
+		getpid(), flags, size);
+	ret = call_clone3(flags, size, test_mode);
+	ksft_print_msg("[%d] clone3() with flags says: %d expected %d\n",
+			getpid(), ret, expected);
+	if (ret != expected) {
+		ksft_print_msg(
+			"[%d] Result (%d) is different than expected (%d)\n",
+			getpid(), ret, expected);
+		return false;
+	}
+
+	return true;
+}
+
+typedef bool (*filter_function)(void);
+typedef size_t (*size_function)(void);
+
+static bool not_root(void)
+{
+	if (getuid() != 0) {
+		ksft_print_msg("Not running as root\n");
+		return true;
+	}
+
+	return false;
+}
+
+static bool no_timenamespace(void)
+{
+	if (not_root())
+		return true;
+
+	if (!access("/proc/self/ns/time", F_OK))
+		return false;
+
+	ksft_print_msg("Time namespaces are not supported\n");
+	return true;
+}
+
+static size_t page_size_plus_8(void)
+{
+	return getpagesize() + 8;
+}
+
+struct test {
+	const char *name;
+	uint64_t flags;
+	size_t size;
+	size_function size_function;
+	int expected;
+	enum test_mode test_mode;
+	filter_function filter;
+};
+
+static const struct test tests[] = {
+	{
+		.name = "simple clone3()",
+		.flags = 0,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "clone3() in a new PID_NS",
+		.flags = CLONE_NEWPID,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0",
+		.flags = 0,
+		.size = CLONE_ARGS_SIZE_VER0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 - 8",
+		.flags = 0,
+		.size = CLONE_ARGS_SIZE_VER0 - 8,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "sizeof(struct clone_args) + 8",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "exit_signal with highest 32 bits non-zero",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_BIG,
+	},
+	{
+		.name = "negative 32-bit exit_signal",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_NEG,
+	},
+	{
+		.name = "exit_signal not fitting into CSIGNAL mask",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_CSIG,
+	},
+	{
+		.name = "NSIG < exit_signal < CSIG",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_NSIG,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_args) + 8",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_args) + 16",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 16,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_arg) * 2",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 16,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments > page size",
+		.flags = 0,
+		.size_function = page_size_plus_8,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = CLONE_ARGS_SIZE_VER0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 - 8 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = CLONE_ARGS_SIZE_VER0 - 8,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "sizeof(struct clone_args) + 8 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "Arguments > page size in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size_function = page_size_plus_8,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "New time NS",
+		.flags = CLONE_NEWTIME,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = no_timenamespace,
+	},
+	{
+		.name = "exit signal (SIGCHLD) in flags",
+		.flags = SIGCHLD,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+};
+
+int main(int argc, char *argv[])
+{
+	size_t size;
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	test_clone3_supported();
+
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (tests[i].filter && tests[i].filter()) {
+			ksft_test_result_skip("%s\n", tests[i].name);
+			continue;
+		}
+
+		if (tests[i].size_function)
+			size = tests[i].size_function();
+		else
+			size = tests[i].size;
+
+		ksft_print_msg("Running test '%s'\n", tests[i].name);
+
+		ksft_test_result(test_clone3(tests[i].flags, size,
+					     tests[i].expected,
+					     tests[i].test_mode),
+				 "%s\n", tests[i].name);
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
new file mode 100644
index 000000000000..e82281efa273
--- /dev/null
+++ b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Based on Christian Brauner's clone3() example.
+ * These tests are assuming to be running in the host's
+ * PID namespace.
+ */
+
+/* capabilities related code based on selftests/bpf/test_verifier.c */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/capability.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sched.h>
+
+#include "kselftest_harness.h"
+#include "clone3_selftests.h"
+
+static void child_exit(int ret)
+{
+	fflush(stdout);
+	fflush(stderr);
+	_exit(ret);
+}
+
+static int call_clone3_set_tid(struct __test_metadata *_metadata,
+			       pid_t *set_tid, size_t set_tid_size)
+{
+	int status;
+	pid_t pid = -1;
+
+	struct __clone_args args = {
+		.exit_signal = SIGCHLD,
+		.set_tid = ptr_to_u64(set_tid),
+		.set_tid_size = set_tid_size,
+	};
+
+	pid = sys_clone3(&args, sizeof(args));
+	if (pid < 0) {
+		TH_LOG("%s - Failed to create new process", strerror(errno));
+		return -errno;
+	}
+
+	if (pid == 0) {
+		int ret;
+		char tmp = 0;
+
+		TH_LOG("I am the child, my PID is %d (expected %d)", getpid(), set_tid[0]);
+
+		if (set_tid[0] != getpid())
+			child_exit(EXIT_FAILURE);
+		child_exit(EXIT_SUCCESS);
+	}
+
+	TH_LOG("I am the parent (%d). My child's pid is %d", getpid(), pid);
+
+	if (waitpid(pid, &status, 0) < 0) {
+		TH_LOG("Child returned %s", strerror(errno));
+		return -errno;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static int test_clone3_set_tid(struct __test_metadata *_metadata,
+			       pid_t *set_tid, size_t set_tid_size)
+{
+	int ret;
+
+	TH_LOG("[%d] Trying clone3() with CLONE_SET_TID to %d", getpid(), set_tid[0]);
+	ret = call_clone3_set_tid(_metadata, set_tid, set_tid_size);
+	TH_LOG("[%d] clone3() with CLONE_SET_TID %d says:%d", getpid(), set_tid[0], ret);
+	return ret;
+}
+
+struct libcap {
+	struct __user_cap_header_struct hdr;
+	struct __user_cap_data_struct data[2];
+};
+
+static int set_capability(void)
+{
+	cap_value_t cap_values[] = { CAP_SETUID, CAP_SETGID };
+	struct libcap *cap;
+	int ret = -1;
+	cap_t caps;
+
+	caps = cap_get_proc();
+	if (!caps) {
+		perror("cap_get_proc");
+		return -1;
+	}
+
+	/* Drop all capabilities */
+	if (cap_clear(caps)) {
+		perror("cap_clear");
+		goto out;
+	}
+
+	cap_set_flag(caps, CAP_EFFECTIVE, 2, cap_values, CAP_SET);
+	cap_set_flag(caps, CAP_PERMITTED, 2, cap_values, CAP_SET);
+
+	cap = (struct libcap *) caps;
+
+	/* 40 -> CAP_CHECKPOINT_RESTORE */
+	cap->data[1].effective |= 1 << (40 - 32);
+	cap->data[1].permitted |= 1 << (40 - 32);
+
+	if (cap_set_proc(caps)) {
+		perror("cap_set_proc");
+		goto out;
+	}
+	ret = 0;
+out:
+	if (cap_free(caps))
+		perror("cap_free");
+	return ret;
+}
+
+TEST(clone3_cap_checkpoint_restore)
+{
+	pid_t pid;
+	int status;
+	int ret = 0;
+	pid_t set_tid[1];
+
+	test_clone3_supported();
+
+	EXPECT_EQ(getuid(), 0)
+		SKIP(return, "Skipping all tests as non-root");
+
+	memset(&set_tid, 0, sizeof(set_tid));
+
+	/* Find the current active PID */
+	pid = fork();
+	if (pid == 0) {
+		TH_LOG("Child has PID %d", getpid());
+		child_exit(EXIT_SUCCESS);
+	}
+	ASSERT_GT(waitpid(pid, &status, 0), 0)
+		TH_LOG("Waiting for child %d failed", pid);
+
+	/* After the child has finished, its PID should be free. */
+	set_tid[0] = pid;
+
+	ASSERT_EQ(set_capability(), 0)
+		TH_LOG("Could not set CAP_CHECKPOINT_RESTORE");
+
+	ASSERT_EQ(prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0), 0);
+
+	EXPECT_EQ(setgid(65534), 0)
+		TH_LOG("Failed to setgid(65534)");
+	ASSERT_EQ(setuid(65534), 0);
+
+	set_tid[0] = pid;
+	/* This would fail without CAP_CHECKPOINT_RESTORE */
+	ASSERT_EQ(test_clone3_set_tid(_metadata, set_tid, 1), -EPERM);
+	ASSERT_EQ(set_capability(), 0)
+		TH_LOG("Could not set CAP_CHECKPOINT_RESTORE");
+	/* This should work as we have CAP_CHECKPOINT_RESTORE as non-root */
+	ASSERT_EQ(test_clone3_set_tid(_metadata, set_tid, 1), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/clone3/clone3_clear_sighand.c b/tools/testing/selftests/clone3/clone3_clear_sighand.c
new file mode 100644
index 000000000000..de0c9d62015d
--- /dev/null
+++ b/tools/testing/selftests/clone3/clone3_clear_sighand.c
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+#include "clone3_selftests.h"
+
+static void nop_handler(int signo)
+{
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static void test_clone3_clear_sighand(void)
+{
+	int ret;
+	pid_t pid;
+	struct __clone_args args = {};
+	struct sigaction act;
+
+	/*
+	 * Check that CLONE_CLEAR_SIGHAND and CLONE_SIGHAND are mutually
+	 * exclusive.
+	 */
+	args.flags |= CLONE_CLEAR_SIGHAND | CLONE_SIGHAND;
+	args.exit_signal = SIGCHLD;
+	pid = sys_clone3(&args, sizeof(args));
+	if (pid > 0)
+		ksft_exit_fail_msg(
+			"clone3(CLONE_CLEAR_SIGHAND | CLONE_SIGHAND) succeeded\n");
+
+	act.sa_handler = nop_handler;
+	ret = sigemptyset(&act.sa_mask);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s - sigemptyset() failed\n",
+				   strerror(errno));
+
+	act.sa_flags = 0;
+
+	/* Register signal handler for SIGUSR1 */
+	ret = sigaction(SIGUSR1, &act, NULL);
+	if (ret < 0)
+		ksft_exit_fail_msg(
+			"%s - sigaction(SIGUSR1, &act, NULL) failed\n",
+			strerror(errno));
+
+	/* Register signal handler for SIGUSR2 */
+	ret = sigaction(SIGUSR2, &act, NULL);
+	if (ret < 0)
+		ksft_exit_fail_msg(
+			"%s - sigaction(SIGUSR2, &act, NULL) failed\n",
+			strerror(errno));
+
+	/* Check that CLONE_CLEAR_SIGHAND works. */
+	args.flags = CLONE_CLEAR_SIGHAND;
+	pid = sys_clone3(&args, sizeof(args));
+	if (pid < 0)
+		ksft_exit_fail_msg("%s - clone3(CLONE_CLEAR_SIGHAND) failed\n",
+				   strerror(errno));
+
+	if (pid == 0) {
+		ret = sigaction(SIGUSR1, NULL, &act);
+		if (ret < 0)
+			exit(EXIT_FAILURE);
+
+		if (act.sa_handler != SIG_DFL)
+			exit(EXIT_FAILURE);
+
+		ret = sigaction(SIGUSR2, NULL, &act);
+		if (ret < 0)
+			exit(EXIT_FAILURE);
+
+		if (act.sa_handler != SIG_DFL)
+			exit(EXIT_FAILURE);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	ret = wait_for_pid(pid);
+	if (ret)
+		ksft_exit_fail_msg(
+			"Failed to clear signal handler for child process\n");
+
+	ksft_test_result_pass("Cleared signal handlers for child process\n");
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(1);
+	test_clone3_supported();
+
+	test_clone3_clear_sighand();
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/clone3/clone3_selftests.h b/tools/testing/selftests/clone3/clone3_selftests.h
new file mode 100644
index 000000000000..a0593e8950f0
--- /dev/null
+++ b/tools/testing/selftests/clone3/clone3_selftests.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _CLONE3_SELFTESTS_H
+#define _CLONE3_SELFTESTS_H
+
+#define _GNU_SOURCE
+#include <sched.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <stdint.h>
+#include <syscall.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+
+#define ptr_to_u64(ptr) ((__u64)((uintptr_t)(ptr)))
+
+#ifndef __NR_clone3
+#define __NR_clone3 435
+#endif
+
+struct __clone_args {
+	__aligned_u64 flags;
+	__aligned_u64 pidfd;
+	__aligned_u64 child_tid;
+	__aligned_u64 parent_tid;
+	__aligned_u64 exit_signal;
+	__aligned_u64 stack;
+	__aligned_u64 stack_size;
+	__aligned_u64 tls;
+	__aligned_u64 set_tid;
+	__aligned_u64 set_tid_size;
+	__aligned_u64 cgroup;
+};
+
+static pid_t sys_clone3(struct __clone_args *args, size_t size)
+{
+	fflush(stdout);
+	fflush(stderr);
+	return syscall(__NR_clone3, args, size);
+}
+
+static inline void test_clone3_supported(void)
+{
+	pid_t pid;
+	struct __clone_args args = {};
+
+	if (__NR_clone3 < 0)
+		ksft_exit_skip("clone3() syscall is not supported\n");
+
+	/* Set to something that will always cause EINVAL. */
+	args.exit_signal = -1;
+	pid = sys_clone3(&args, sizeof(args));
+	if (!pid)
+		exit(EXIT_SUCCESS);
+
+	if (pid > 0) {
+		wait(NULL);
+		ksft_exit_fail_msg(
+			"Managed to create child process with invalid exit_signal\n");
+	}
+
+	if (errno == ENOSYS)
+		ksft_exit_skip("clone3() syscall is not supported\n");
+
+	ksft_print_msg("clone3() syscall supported\n");
+}
+
+#endif /* _CLONE3_SELFTESTS_H */
diff --git a/tools/testing/selftests/clone3/clone3_set_tid.c b/tools/testing/selftests/clone3/clone3_set_tid.c
new file mode 100644
index 000000000000..5c944aee6b41
--- /dev/null
+++ b/tools/testing/selftests/clone3/clone3_set_tid.c
@@ -0,0 +1,418 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Based on Christian Brauner's clone3() example.
+ * These tests are assuming to be running in the host's
+ * PID namespace.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/types.h>
+#include <linux/sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sched.h>
+
+#include "kselftest.h"
+#include "clone3_selftests.h"
+
+#define MAX_PID_NS_LEVEL 32
+
+static int pipe_1[2];
+static int pipe_2[2];
+
+static void child_exit(int ret)
+{
+	fflush(stdout);
+	fflush(stderr);
+	_exit(ret);
+}
+
+static int call_clone3_set_tid(pid_t *set_tid,
+			       size_t set_tid_size,
+			       int flags,
+			       int expected_pid,
+			       bool wait_for_it)
+{
+	int status;
+	pid_t pid = -1;
+
+	struct __clone_args args = {
+		.flags = flags,
+		.exit_signal = SIGCHLD,
+		.set_tid = ptr_to_u64(set_tid),
+		.set_tid_size = set_tid_size,
+	};
+
+	pid = sys_clone3(&args, sizeof(args));
+	if (pid < 0) {
+		ksft_print_msg("%s - Failed to create new process\n",
+			       strerror(errno));
+		return -errno;
+	}
+
+	if (pid == 0) {
+		int ret;
+		char tmp = 0;
+		int exit_code = EXIT_SUCCESS;
+
+		ksft_print_msg("I am the child, my PID is %d (expected %d)\n",
+			       getpid(), set_tid[0]);
+		if (wait_for_it) {
+			ksft_print_msg("[%d] Child is ready and waiting\n",
+				       getpid());
+
+			/* Signal the parent that the child is ready */
+			close(pipe_1[0]);
+			ret = write(pipe_1[1], &tmp, 1);
+			if (ret != 1) {
+				ksft_print_msg(
+					"Writing to pipe returned %d", ret);
+				exit_code = EXIT_FAILURE;
+			}
+			close(pipe_1[1]);
+			close(pipe_2[1]);
+			ret = read(pipe_2[0], &tmp, 1);
+			if (ret != 1) {
+				ksft_print_msg(
+					"Reading from pipe returned %d", ret);
+				exit_code = EXIT_FAILURE;
+			}
+			close(pipe_2[0]);
+		}
+
+		if (set_tid[0] != getpid())
+			child_exit(EXIT_FAILURE);
+		child_exit(exit_code);
+	}
+
+	if (expected_pid == 0 || expected_pid == pid) {
+		ksft_print_msg("I am the parent (%d). My child's pid is %d\n",
+			       getpid(), pid);
+	} else {
+		ksft_print_msg(
+			"Expected child pid %d does not match actual pid %d\n",
+			expected_pid, pid);
+		return -1;
+	}
+
+	if (waitpid(pid, &status, 0) < 0) {
+		ksft_print_msg("Child returned %s\n", strerror(errno));
+		return -errno;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static void test_clone3_set_tid(const char *desc,
+				pid_t *set_tid,
+				size_t set_tid_size,
+				int flags,
+				int expected,
+				int expected_pid,
+				bool wait_for_it)
+{
+	int ret;
+
+	ksft_print_msg(
+		"[%d] Trying clone3() with CLONE_SET_TID to %d and 0x%x\n",
+		getpid(), set_tid[0], flags);
+	ret = call_clone3_set_tid(set_tid, set_tid_size, flags, expected_pid,
+				  wait_for_it);
+	ksft_print_msg(
+		"[%d] clone3() with CLONE_SET_TID %d says: %d - expected %d\n",
+		getpid(), set_tid[0], ret, expected);
+
+	ksft_test_result(ret == expected, "%s with %zu TIDs and flags 0x%x\n",
+			 desc, set_tid_size, flags);
+}
+
+int main(int argc, char *argv[])
+{
+	FILE *f;
+	char buf;
+	char *line;
+	int status;
+	int ret = -1;
+	size_t len = 0;
+	int pid_max = 0;
+	uid_t uid = getuid();
+	char proc_path[100] = {0};
+	pid_t pid, ns1, ns2, ns3, ns_pid;
+	pid_t set_tid[MAX_PID_NS_LEVEL * 2];
+
+	ksft_print_header();
+	ksft_set_plan(29);
+	test_clone3_supported();
+
+	if (pipe(pipe_1) < 0 || pipe(pipe_2) < 0)
+		ksft_exit_fail_msg("pipe() failed\n");
+
+	f = fopen("/proc/sys/kernel/pid_max", "r");
+	if (f == NULL)
+		ksft_exit_fail_msg(
+			"%s - Could not open /proc/sys/kernel/pid_max\n",
+			strerror(errno));
+	fscanf(f, "%d", &pid_max);
+	fclose(f);
+	ksft_print_msg("/proc/sys/kernel/pid_max %d\n", pid_max);
+
+	/* Try invalid settings */
+	memset(&set_tid, 0, sizeof(set_tid));
+	test_clone3_set_tid("invalid size, 0 TID",
+			    set_tid, MAX_PID_NS_LEVEL + 1, 0, -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, 0 TID",
+			    set_tid, MAX_PID_NS_LEVEL * 2, 0, -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, 0 TID",
+			    set_tid, MAX_PID_NS_LEVEL * 2 + 1, 0,
+			    -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, 0 TID",
+			    set_tid, MAX_PID_NS_LEVEL * 42, 0, -EINVAL, 0, 0);
+
+	/*
+	 * This can actually work if this test running in a MAX_PID_NS_LEVEL - 1
+	 * nested PID namespace.
+	 */
+	test_clone3_set_tid("invalid size, 0 TID",
+			    set_tid, MAX_PID_NS_LEVEL - 1, 0, -EINVAL, 0, 0);
+
+	memset(&set_tid, 0xff, sizeof(set_tid));
+	test_clone3_set_tid("invalid size, TID all 1s",
+			    set_tid, MAX_PID_NS_LEVEL + 1, 0, -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, TID all 1s",
+			    set_tid, MAX_PID_NS_LEVEL * 2, 0, -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, TID all 1s",
+			    set_tid, MAX_PID_NS_LEVEL * 2 + 1, 0,
+			    -EINVAL, 0, 0);
+
+	test_clone3_set_tid("invalid size, TID all 1s",
+			    set_tid, MAX_PID_NS_LEVEL * 42, 0, -EINVAL, 0, 0);
+
+	/*
+	 * This can actually work if this test running in a MAX_PID_NS_LEVEL - 1
+	 * nested PID namespace.
+	 */
+	test_clone3_set_tid("invalid size, TID all 1s",
+			    set_tid, MAX_PID_NS_LEVEL - 1, 0, -EINVAL, 0, 0);
+
+	memset(&set_tid, 0, sizeof(set_tid));
+	/* Try with an invalid PID */
+	set_tid[0] = 0;
+	test_clone3_set_tid("valid size, 0 TID",
+			    set_tid, 1, 0, -EINVAL, 0, 0);
+
+	set_tid[0] = -1;
+	test_clone3_set_tid("valid size, -1 TID",
+			    set_tid, 1, 0, -EINVAL, 0, 0);
+
+	/* Claim that the set_tid array actually contains 2 elements. */
+	test_clone3_set_tid("2 TIDs, -1 and 0",
+			    set_tid, 2, 0, -EINVAL, 0, 0);
+
+	/* Try it in a new PID namespace */
+	if (uid == 0)
+		test_clone3_set_tid("valid size, -1 TID",
+				    set_tid, 1, CLONE_NEWPID, -EINVAL, 0, 0);
+	else
+		ksft_test_result_skip("Clone3() with set_tid requires root\n");
+
+	/* Try with a valid PID (1) this should return -EEXIST. */
+	set_tid[0] = 1;
+	if (uid == 0)
+		test_clone3_set_tid("duplicate PID 1",
+				    set_tid, 1, 0, -EEXIST, 0, 0);
+	else
+		ksft_test_result_skip("Clone3() with set_tid requires root\n");
+
+	/* Try it in a new PID namespace */
+	if (uid == 0)
+		test_clone3_set_tid("duplicate PID 1",
+				    set_tid, 1, CLONE_NEWPID, 0, 0, 0);
+	else
+		ksft_test_result_skip("Clone3() with set_tid requires root\n");
+
+	/* pid_max should fail everywhere */
+	set_tid[0] = pid_max;
+	test_clone3_set_tid("set TID to maximum",
+			    set_tid, 1, 0, -EINVAL, 0, 0);
+
+	if (uid == 0)
+		test_clone3_set_tid("set TID to maximum",
+				    set_tid, 1, CLONE_NEWPID, -EINVAL, 0, 0);
+	else
+		ksft_test_result_skip("Clone3() with set_tid requires root\n");
+
+	if (uid != 0) {
+		/*
+		 * All remaining tests require root. Tell the framework
+		 * that all those tests are skipped as non-root.
+		 */
+		ksft_cnt.ksft_xskip += ksft_plan - ksft_test_num();
+		goto out;
+	}
+
+	/* Find the current active PID */
+	pid = fork();
+	if (pid == 0) {
+		ksft_print_msg("Child has PID %d\n", getpid());
+		child_exit(EXIT_SUCCESS);
+	}
+	if (waitpid(pid, &status, 0) < 0)
+		ksft_exit_fail_msg("Waiting for child %d failed", pid);
+
+	/* After the child has finished, its PID should be free. */
+	set_tid[0] = pid;
+	test_clone3_set_tid("reallocate child TID",
+			    set_tid, 1, 0, 0, 0, 0);
+
+	/* This should fail as there is no PID 1 in that namespace */
+	test_clone3_set_tid("duplicate child TID",
+			    set_tid, 1, CLONE_NEWPID, -EINVAL, 0, 0);
+
+	/*
+	 * Creating a process with PID 1 in the newly created most nested
+	 * PID namespace and PID 'pid' in the parent PID namespace. This
+	 * needs to work.
+	 */
+	set_tid[0] = 1;
+	set_tid[1] = pid;
+	test_clone3_set_tid("create PID 1 in new NS",
+			    set_tid, 2, CLONE_NEWPID, 0, pid, 0);
+
+	ksft_print_msg("unshare PID namespace\n");
+	if (unshare(CLONE_NEWPID) == -1)
+		ksft_exit_fail_msg("unshare(CLONE_NEWPID) failed: %s\n",
+				strerror(errno));
+
+	set_tid[0] = pid;
+
+	/* This should fail as there is no PID 1 in that namespace */
+	test_clone3_set_tid("duplicate PID 1",
+			    set_tid, 1, 0, -EINVAL, 0, 0);
+
+	/* Let's create a PID 1 */
+	ns_pid = fork();
+	if (ns_pid == 0) {
+		/*
+		 * This and the next test cases check that all pid-s are
+		 * released on error paths.
+		 */
+		set_tid[0] = 43;
+		set_tid[1] = -1;
+		test_clone3_set_tid("check leak on invalid TID -1",
+				    set_tid, 2, 0, -EINVAL, 0, 0);
+
+		set_tid[0] = 43;
+		set_tid[1] = pid;
+		test_clone3_set_tid("check leak on invalid specific TID",
+				    set_tid, 2, 0, 0, 43, 0);
+
+		ksft_print_msg("Child in PID namespace has PID %d\n", getpid());
+		set_tid[0] = 2;
+		test_clone3_set_tid("create PID 2 in child NS",
+				    set_tid, 1, 0, 0, 2, 0);
+
+		set_tid[0] = 1;
+		set_tid[1] = -1;
+		set_tid[2] = pid;
+		/* This should fail as there is invalid PID at level '1'. */
+		test_clone3_set_tid("fail due to invalid TID at level 1",
+				    set_tid, 3, CLONE_NEWPID, -EINVAL, 0, 0);
+
+		set_tid[0] = 1;
+		set_tid[1] = 42;
+		set_tid[2] = pid;
+		/*
+		 * This should fail as there are not enough active PID
+		 * namespaces. Again assuming this is running in the host's
+		 * PID namespace. Not yet nested.
+		 */
+		test_clone3_set_tid("fail due to too few active PID NSs",
+				    set_tid, 4, CLONE_NEWPID, -EINVAL, 0, 0);
+
+		/*
+		 * This should work and from the parent we should see
+		 * something like 'NSpid:	pid	42	1'.
+		 */
+		test_clone3_set_tid("verify that we have 3 PID NSs",
+				    set_tid, 3, CLONE_NEWPID, 0, 42, true);
+
+		child_exit(ksft_cnt.ksft_fail);
+	}
+
+	close(pipe_1[1]);
+	close(pipe_2[0]);
+	while (read(pipe_1[0], &buf, 1) > 0) {
+		ksft_print_msg("[%d] Child is ready and waiting\n", getpid());
+		break;
+	}
+
+	snprintf(proc_path, sizeof(proc_path), "/proc/%d/status", pid);
+	f = fopen(proc_path, "r");
+	if (f == NULL)
+		ksft_exit_fail_msg(
+			"%s - Could not open %s\n",
+			strerror(errno), proc_path);
+
+	while (getline(&line, &len, f) != -1) {
+		if (strstr(line, "NSpid")) {
+			int i;
+
+			/* Verify that all generated PIDs are as expected. */
+			i = sscanf(line, "NSpid:\t%d\t%d\t%d",
+				   &ns3, &ns2, &ns1);
+			if (i != 3) {
+				ksft_print_msg(
+					"Unexpected 'NSPid:' entry: %s",
+					line);
+				ns1 = ns2 = ns3 = 0;
+			}
+			break;
+		}
+	}
+	fclose(f);
+	free(line);
+	close(pipe_2[0]);
+
+	/* Tell the clone3()'d child to finish. */
+	write(pipe_2[1], &buf, 1);
+	close(pipe_2[1]);
+
+	if (waitpid(ns_pid, &status, 0) < 0) {
+		ksft_print_msg("Child returned %s\n", strerror(errno));
+		ret = -errno;
+		goto out;
+	}
+
+	if (!WIFEXITED(status))
+		ksft_test_result_fail("Child error\n");
+
+	ksft_cnt.ksft_pass += 6 - (ksft_cnt.ksft_fail - WEXITSTATUS(status));
+	ksft_cnt.ksft_fail = WEXITSTATUS(status);
+
+	ksft_print_msg("Expecting PIDs %d, 42, 1\n", pid);
+	ksft_print_msg("Have PIDs in namespaces: %d, %d, %d\n", ns3, ns2, ns1);
+	ksft_test_result(ns3 == pid && ns2 == 42 && ns1 == 1,
+			 "PIDs in all namespaces as expected\n");
+out:
+	ret = 0;
+
+	if (ret)
+		ksft_exit_fail();
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/connector/.gitignore b/tools/testing/selftests/connector/.gitignore
new file mode 100644
index 000000000000..c90098199a44
--- /dev/null
+++ b/tools/testing/selftests/connector/.gitignore
@@ -0,0 +1 @@
+proc_filter
diff --git a/tools/testing/selftests/connector/Makefile b/tools/testing/selftests/connector/Makefile
new file mode 100644
index 000000000000..92188b9bac5c
--- /dev/null
+++ b/tools/testing/selftests/connector/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wall $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS = proc_filter
+
+include ../lib.mk
diff --git a/tools/testing/selftests/connector/proc_filter.c b/tools/testing/selftests/connector/proc_filter.c
new file mode 100644
index 000000000000..36c11467a8f1
--- /dev/null
+++ b/tools/testing/selftests/connector/proc_filter.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <sys/types.h>
+#include <sys/epoll.h>
+#include <sys/socket.h>
+#include <linux/netlink.h>
+#include <linux/connector.h>
+#include <linux/cn_proc.h>
+
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <strings.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+
+#include "kselftest.h"
+
+#define NL_MESSAGE_SIZE (sizeof(struct nlmsghdr) + sizeof(struct cn_msg) + \
+			 sizeof(struct proc_input))
+#define NL_MESSAGE_SIZE_NF (sizeof(struct nlmsghdr) + sizeof(struct cn_msg) + \
+			 sizeof(int))
+
+#define MAX_EVENTS 1
+
+volatile static int interrupted;
+static int nl_sock, ret_errno, tcount;
+static struct epoll_event evn;
+
+static int filter;
+
+#ifdef ENABLE_PRINTS
+#define Printf printf
+#else
+#define Printf ksft_print_msg
+#endif
+
+int send_message(void *pinp)
+{
+	char buff[NL_MESSAGE_SIZE];
+	struct nlmsghdr *hdr;
+	struct cn_msg *msg;
+
+	hdr = (struct nlmsghdr *)buff;
+	if (filter)
+		hdr->nlmsg_len = NL_MESSAGE_SIZE;
+	else
+		hdr->nlmsg_len = NL_MESSAGE_SIZE_NF;
+	hdr->nlmsg_type = NLMSG_DONE;
+	hdr->nlmsg_flags = 0;
+	hdr->nlmsg_seq = 0;
+	hdr->nlmsg_pid = getpid();
+
+	msg = (struct cn_msg *)NLMSG_DATA(hdr);
+	msg->id.idx = CN_IDX_PROC;
+	msg->id.val = CN_VAL_PROC;
+	msg->seq = 0;
+	msg->ack = 0;
+	msg->flags = 0;
+
+	if (filter) {
+		msg->len = sizeof(struct proc_input);
+		((struct proc_input *)msg->data)->mcast_op =
+			((struct proc_input *)pinp)->mcast_op;
+		((struct proc_input *)msg->data)->event_type =
+			((struct proc_input *)pinp)->event_type;
+	} else {
+		msg->len = sizeof(int);
+		*(int *)msg->data = *(enum proc_cn_mcast_op *)pinp;
+	}
+
+	if (send(nl_sock, hdr, hdr->nlmsg_len, 0) == -1) {
+		ret_errno = errno;
+		perror("send failed");
+		return -3;
+	}
+	return 0;
+}
+
+int register_proc_netlink(int *efd, void *input)
+{
+	struct sockaddr_nl sa_nl;
+	int err = 0, epoll_fd;
+
+	nl_sock = socket(PF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
+
+	if (nl_sock == -1) {
+		ret_errno = errno;
+		perror("socket failed");
+		return -1;
+	}
+
+	bzero(&sa_nl, sizeof(sa_nl));
+	sa_nl.nl_family = AF_NETLINK;
+	sa_nl.nl_groups = CN_IDX_PROC;
+	sa_nl.nl_pid    = getpid();
+
+	if (bind(nl_sock, (struct sockaddr *)&sa_nl, sizeof(sa_nl)) == -1) {
+		ret_errno = errno;
+		perror("bind failed");
+		return -2;
+	}
+
+	epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+	if (epoll_fd < 0) {
+		ret_errno = errno;
+		perror("epoll_create1 failed");
+		return -2;
+	}
+
+	err = send_message(input);
+
+	if (err < 0)
+		return err;
+
+	evn.events = EPOLLIN;
+	evn.data.fd = nl_sock;
+	if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, nl_sock, &evn) < 0) {
+		ret_errno = errno;
+		perror("epoll_ctl failed");
+		return -3;
+	}
+	*efd = epoll_fd;
+	return 0;
+}
+
+static void sigint(int sig)
+{
+	interrupted = 1;
+}
+
+int handle_packet(char *buff, int fd, struct proc_event *event)
+{
+	struct nlmsghdr *hdr;
+
+	hdr = (struct nlmsghdr *)buff;
+
+	if (hdr->nlmsg_type == NLMSG_ERROR) {
+		perror("NLMSG_ERROR error\n");
+		return -3;
+	} else if (hdr->nlmsg_type == NLMSG_DONE) {
+		event = (struct proc_event *)
+			((struct cn_msg *)NLMSG_DATA(hdr))->data;
+		tcount++;
+		switch (event->what) {
+		case PROC_EVENT_EXIT:
+			Printf("Exit process %d (tgid %d) with code %d, signal %d\n",
+			       event->event_data.exit.process_pid,
+			       event->event_data.exit.process_tgid,
+			       event->event_data.exit.exit_code,
+			       event->event_data.exit.exit_signal);
+			break;
+		case PROC_EVENT_FORK:
+			Printf("Fork process %d (tgid %d), parent %d (tgid %d)\n",
+			       event->event_data.fork.child_pid,
+			       event->event_data.fork.child_tgid,
+			       event->event_data.fork.parent_pid,
+			       event->event_data.fork.parent_tgid);
+			break;
+		case PROC_EVENT_EXEC:
+			Printf("Exec process %d (tgid %d)\n",
+			       event->event_data.exec.process_pid,
+			       event->event_data.exec.process_tgid);
+			break;
+		case PROC_EVENT_UID:
+			Printf("UID process %d (tgid %d) uid %d euid %d\n",
+			       event->event_data.id.process_pid,
+			       event->event_data.id.process_tgid,
+			       event->event_data.id.r.ruid,
+			       event->event_data.id.e.euid);
+			break;
+		case PROC_EVENT_GID:
+			Printf("GID process %d (tgid %d) gid %d egid %d\n",
+			       event->event_data.id.process_pid,
+			       event->event_data.id.process_tgid,
+			       event->event_data.id.r.rgid,
+			       event->event_data.id.e.egid);
+			break;
+		case PROC_EVENT_SID:
+			Printf("SID process %d (tgid %d)\n",
+			       event->event_data.sid.process_pid,
+			       event->event_data.sid.process_tgid);
+			break;
+		case PROC_EVENT_PTRACE:
+			Printf("Ptrace process %d (tgid %d), Tracer %d (tgid %d)\n",
+			       event->event_data.ptrace.process_pid,
+			       event->event_data.ptrace.process_tgid,
+			       event->event_data.ptrace.tracer_pid,
+			       event->event_data.ptrace.tracer_tgid);
+			break;
+		case PROC_EVENT_COMM:
+			Printf("Comm process %d (tgid %d) comm %s\n",
+			       event->event_data.comm.process_pid,
+			       event->event_data.comm.process_tgid,
+			       event->event_data.comm.comm);
+			break;
+		case PROC_EVENT_COREDUMP:
+			Printf("Coredump process %d (tgid %d) parent %d, (tgid %d)\n",
+			       event->event_data.coredump.process_pid,
+			       event->event_data.coredump.process_tgid,
+			       event->event_data.coredump.parent_pid,
+			       event->event_data.coredump.parent_tgid);
+			break;
+		default:
+			break;
+		}
+	}
+	return 0;
+}
+
+int handle_events(int epoll_fd, struct proc_event *pev)
+{
+	char buff[CONNECTOR_MAX_MSG_SIZE];
+	struct epoll_event ev[MAX_EVENTS];
+	int i, event_count = 0, err = 0;
+
+	event_count = epoll_wait(epoll_fd, ev, MAX_EVENTS, -1);
+	if (event_count < 0) {
+		ret_errno = errno;
+		if (ret_errno != EINTR)
+			perror("epoll_wait failed");
+		return -3;
+	}
+	for (i = 0; i < event_count; i++) {
+		if (!(ev[i].events & EPOLLIN))
+			continue;
+		if (recv(ev[i].data.fd, buff, sizeof(buff), 0) == -1) {
+			ret_errno = errno;
+			perror("recv failed");
+			return -3;
+		}
+		err = handle_packet(buff, ev[i].data.fd, pev);
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int epoll_fd, err;
+	struct proc_event proc_ev;
+	struct proc_input input;
+
+	signal(SIGINT, sigint);
+
+	if (argc > 2) {
+		printf("Expected 0(assume no-filter) or 1 argument(-f)\n");
+		exit(KSFT_SKIP);
+	}
+
+	if (argc == 2) {
+		if (strcmp(argv[1], "-f") == 0) {
+			filter = 1;
+		} else {
+			printf("Valid option : -f (for filter feature)\n");
+			exit(KSFT_SKIP);
+		}
+	}
+
+	if (filter) {
+		input.event_type = PROC_EVENT_NONZERO_EXIT;
+		input.mcast_op = PROC_CN_MCAST_LISTEN;
+		err = register_proc_netlink(&epoll_fd, (void*)&input);
+	} else {
+		enum proc_cn_mcast_op op = PROC_CN_MCAST_LISTEN;
+		err = register_proc_netlink(&epoll_fd, (void*)&op);
+	}
+
+	if (err < 0) {
+		if (err == -2)
+			close(nl_sock);
+		if (err == -3) {
+			close(nl_sock);
+			close(epoll_fd);
+		}
+		exit(1);
+	}
+
+	while (!interrupted) {
+		err = handle_events(epoll_fd, &proc_ev);
+		if (err < 0) {
+			if (ret_errno == EINTR)
+				continue;
+			if (err == -2)
+				close(nl_sock);
+			if (err == -3) {
+				close(nl_sock);
+				close(epoll_fd);
+			}
+			exit(1);
+		}
+	}
+
+	if (filter) {
+		input.mcast_op = PROC_CN_MCAST_IGNORE;
+		send_message((void*)&input);
+	} else {
+		enum proc_cn_mcast_op op = PROC_CN_MCAST_IGNORE;
+		send_message((void*)&op);
+	}
+
+	close(epoll_fd);
+	close(nl_sock);
+
+	printf("Done total count: %d\n", tcount);
+	exit(0);
+}
diff --git a/tools/testing/selftests/core/.gitignore b/tools/testing/selftests/core/.gitignore
new file mode 100644
index 000000000000..7999361992aa
--- /dev/null
+++ b/tools/testing/selftests/core/.gitignore
@@ -0,0 +1,2 @@
+close_range_test
+unshare_test
diff --git a/tools/testing/selftests/core/Makefile b/tools/testing/selftests/core/Makefile
new file mode 100644
index 000000000000..8e99f87f5d7c
--- /dev/null
+++ b/tools/testing/selftests/core/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -g $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := close_range_test unshare_test
+
+include ../lib.mk
+
diff --git a/tools/testing/selftests/core/close_range_test.c b/tools/testing/selftests/core/close_range_test.c
new file mode 100644
index 000000000000..f14eca63f20c
--- /dev/null
+++ b/tools/testing/selftests/core/close_range_test.c
@@ -0,0 +1,666 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/kernel.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <unistd.h>
+#include <sys/resource.h>
+#include <linux/close_range.h>
+
+#include "kselftest_harness.h"
+#include "../clone3/clone3_selftests.h"
+
+
+#ifndef F_LINUX_SPECIFIC_BASE
+#define F_LINUX_SPECIFIC_BASE 1024
+#endif
+
+#ifndef F_DUPFD_QUERY
+#define F_DUPFD_QUERY (F_LINUX_SPECIFIC_BASE + 3)
+#endif
+
+#ifndef F_CREATED_QUERY
+#define F_CREATED_QUERY (F_LINUX_SPECIFIC_BASE + 4)
+#endif
+
+static inline int sys_close_range(unsigned int fd, unsigned int max_fd,
+				  unsigned int flags)
+{
+	return syscall(__NR_close_range, fd, max_fd, flags);
+}
+
+TEST(core_close_range)
+{
+	int i, ret;
+	int open_fds[101];
+
+	for (i = 0; i < ARRAY_SIZE(open_fds); i++) {
+		int fd;
+
+		fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return, "Skipping test since /dev/null does not exist");
+		}
+
+		open_fds[i] = fd;
+	}
+
+	EXPECT_EQ(-1, sys_close_range(open_fds[0], open_fds[100], -1)) {
+		if (errno == ENOSYS)
+			SKIP(return, "close_range() syscall not supported");
+	}
+
+	for (i = 0; i < 100; i++) {
+		ret = fcntl(open_fds[i], F_DUPFD_QUERY, open_fds[i + 1]);
+		if (ret < 0) {
+			EXPECT_EQ(errno, EINVAL);
+		} else {
+			EXPECT_EQ(ret, 0);
+		}
+	}
+
+	EXPECT_EQ(0, sys_close_range(open_fds[0], open_fds[50], 0));
+
+	for (i = 0; i <= 50; i++)
+		EXPECT_EQ(-1, fcntl(open_fds[i], F_GETFL));
+
+	for (i = 51; i <= 100; i++)
+		EXPECT_GT(fcntl(open_fds[i], F_GETFL), -1);
+
+	/* create a couple of gaps */
+	close(57);
+	close(78);
+	close(81);
+	close(82);
+	close(84);
+	close(90);
+
+	EXPECT_EQ(0, sys_close_range(open_fds[51], open_fds[92], 0));
+
+	for (i = 51; i <= 92; i++)
+		EXPECT_EQ(-1, fcntl(open_fds[i], F_GETFL));
+
+	for (i = 93; i <= 100; i++)
+		EXPECT_GT(fcntl(open_fds[i], F_GETFL), -1);
+
+	/* test that the kernel caps and still closes all fds */
+	EXPECT_EQ(0, sys_close_range(open_fds[93], open_fds[99], 0));
+
+	for (i = 93; i <= 99; i++)
+		EXPECT_EQ(-1, fcntl(open_fds[i], F_GETFL));
+
+	EXPECT_GT(fcntl(open_fds[i], F_GETFL), -1);
+
+	EXPECT_EQ(0, sys_close_range(open_fds[100], open_fds[100], 0));
+
+	EXPECT_EQ(-1, fcntl(open_fds[100], F_GETFL));
+}
+
+TEST(close_range_unshare)
+{
+	int i, ret, status;
+	pid_t pid;
+	int open_fds[101];
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(open_fds); i++) {
+		int fd;
+
+		fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return, "Skipping test since /dev/null does not exist");
+		}
+
+		open_fds[i] = fd;
+	}
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = sys_close_range(open_fds[0], open_fds[50],
+				      CLOSE_RANGE_UNSHARE);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		for (i = 0; i <= 50; i++)
+			if (fcntl(open_fds[i], F_GETFL) != -1)
+				exit(EXIT_FAILURE);
+
+		for (i = 51; i <= 100; i++)
+			if (fcntl(open_fds[i], F_GETFL) == -1)
+				exit(EXIT_FAILURE);
+
+		/* create a couple of gaps */
+		close(57);
+		close(78);
+		close(81);
+		close(82);
+		close(84);
+		close(90);
+
+		ret = sys_close_range(open_fds[51], open_fds[92],
+				      CLOSE_RANGE_UNSHARE);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		for (i = 51; i <= 92; i++)
+			if (fcntl(open_fds[i], F_GETFL) != -1)
+				exit(EXIT_FAILURE);
+
+		for (i = 93; i <= 100; i++)
+			if (fcntl(open_fds[i], F_GETFL) == -1)
+				exit(EXIT_FAILURE);
+
+		/* test that the kernel caps and still closes all fds */
+		ret = sys_close_range(open_fds[93], open_fds[99],
+				      CLOSE_RANGE_UNSHARE);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		for (i = 93; i <= 99; i++)
+			if (fcntl(open_fds[i], F_GETFL) != -1)
+				exit(EXIT_FAILURE);
+
+		if (fcntl(open_fds[100], F_GETFL) == -1)
+			exit(EXIT_FAILURE);
+
+		ret = sys_close_range(open_fds[100], open_fds[100],
+				      CLOSE_RANGE_UNSHARE);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		if (fcntl(open_fds[100], F_GETFL) != -1)
+			exit(EXIT_FAILURE);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(close_range_unshare_capped)
+{
+	int i, ret, status;
+	pid_t pid;
+	int open_fds[101];
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	for (i = 0; i < ARRAY_SIZE(open_fds); i++) {
+		int fd;
+
+		fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return, "Skipping test since /dev/null does not exist");
+		}
+
+		open_fds[i] = fd;
+	}
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = sys_close_range(open_fds[0], UINT_MAX,
+				      CLOSE_RANGE_UNSHARE);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		for (i = 0; i <= 100; i++)
+			if (fcntl(open_fds[i], F_GETFL) != -1)
+				exit(EXIT_FAILURE);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(close_range_cloexec)
+{
+	int i, ret;
+	int open_fds[101];
+	struct rlimit rlimit;
+
+	for (i = 0; i < ARRAY_SIZE(open_fds); i++) {
+		int fd;
+
+		fd = open("/dev/null", O_RDONLY);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return, "Skipping test since /dev/null does not exist");
+		}
+
+		open_fds[i] = fd;
+	}
+
+	ret = sys_close_range(1000, 1000, CLOSE_RANGE_CLOEXEC);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "close_range() syscall not supported");
+		if (errno == EINVAL)
+			SKIP(return, "close_range() doesn't support CLOSE_RANGE_CLOEXEC");
+	}
+
+	/* Ensure the FD_CLOEXEC bit is set also with a resource limit in place.  */
+	ASSERT_EQ(0, getrlimit(RLIMIT_NOFILE, &rlimit));
+	rlimit.rlim_cur = 25;
+	ASSERT_EQ(0, setrlimit(RLIMIT_NOFILE, &rlimit));
+
+	/* Set close-on-exec for two ranges: [0-50] and [75-100].  */
+	ret = sys_close_range(open_fds[0], open_fds[50], CLOSE_RANGE_CLOEXEC);
+	ASSERT_EQ(0, ret);
+	ret = sys_close_range(open_fds[75], open_fds[100], CLOSE_RANGE_CLOEXEC);
+	ASSERT_EQ(0, ret);
+
+	for (i = 0; i <= 50; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+
+	for (i = 51; i <= 74; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, 0);
+	}
+
+	for (i = 75; i <= 100; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+
+	/* Test a common pattern.  */
+	ret = sys_close_range(3, UINT_MAX, CLOSE_RANGE_CLOEXEC);
+	for (i = 0; i <= 100; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+}
+
+TEST(close_range_cloexec_unshare)
+{
+	int i, ret;
+	int open_fds[101];
+	struct rlimit rlimit;
+
+	for (i = 0; i < ARRAY_SIZE(open_fds); i++) {
+		int fd;
+
+		fd = open("/dev/null", O_RDONLY);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return, "Skipping test since /dev/null does not exist");
+		}
+
+		open_fds[i] = fd;
+	}
+
+	ret = sys_close_range(1000, 1000, CLOSE_RANGE_CLOEXEC);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "close_range() syscall not supported");
+		if (errno == EINVAL)
+			SKIP(return, "close_range() doesn't support CLOSE_RANGE_CLOEXEC");
+	}
+
+	/* Ensure the FD_CLOEXEC bit is set also with a resource limit in place.  */
+	ASSERT_EQ(0, getrlimit(RLIMIT_NOFILE, &rlimit));
+	rlimit.rlim_cur = 25;
+	ASSERT_EQ(0, setrlimit(RLIMIT_NOFILE, &rlimit));
+
+	/* Set close-on-exec for two ranges: [0-50] and [75-100].  */
+	ret = sys_close_range(open_fds[0], open_fds[50],
+			      CLOSE_RANGE_CLOEXEC | CLOSE_RANGE_UNSHARE);
+	ASSERT_EQ(0, ret);
+	ret = sys_close_range(open_fds[75], open_fds[100],
+			      CLOSE_RANGE_CLOEXEC | CLOSE_RANGE_UNSHARE);
+	ASSERT_EQ(0, ret);
+
+	for (i = 0; i <= 50; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+
+	for (i = 51; i <= 74; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, 0);
+	}
+
+	for (i = 75; i <= 100; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+
+	/* Test a common pattern.  */
+	ret = sys_close_range(3, UINT_MAX,
+			      CLOSE_RANGE_CLOEXEC | CLOSE_RANGE_UNSHARE);
+	for (i = 0; i <= 100; i++) {
+		int flags = fcntl(open_fds[i], F_GETFD);
+
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+	}
+}
+
+/*
+ * Regression test for syzbot+96cfd2b22b3213646a93@syzkaller.appspotmail.com
+ */
+TEST(close_range_cloexec_syzbot)
+{
+	int fd1, fd2, fd3, fd4, flags, ret, status;
+	pid_t pid;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	/* Create a huge gap in the fd table. */
+	fd1 = open("/dev/null", O_RDWR);
+	EXPECT_GT(fd1, 0);
+
+	fd2 = dup2(fd1, 1000);
+	EXPECT_GT(fd2, 0);
+
+	flags = fcntl(fd1, F_DUPFD_QUERY, fd2);
+	if (flags < 0) {
+		EXPECT_EQ(errno, EINVAL);
+	} else {
+		EXPECT_EQ(flags, 1);
+	}
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = sys_close_range(3, ~0U, CLOSE_RANGE_CLOEXEC);
+		if (ret)
+			exit(EXIT_FAILURE);
+
+		/*
+			 * We now have a private file descriptor table and all
+			 * our open fds should still be open but made
+			 * close-on-exec.
+			 */
+		flags = fcntl(fd1, F_GETFD);
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+		flags = fcntl(fd2, F_GETFD);
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+		fd3 = dup2(fd1, 42);
+		EXPECT_GT(fd3, 0);
+
+		flags = fcntl(fd1, F_DUPFD_QUERY, fd3);
+		if (flags < 0) {
+			EXPECT_EQ(errno, EINVAL);
+		} else {
+			EXPECT_EQ(flags, 1);
+		}
+
+
+
+		/*
+			 * Duplicating the file descriptor must remove the
+			 * FD_CLOEXEC flag.
+			 */
+		flags = fcntl(fd3, F_GETFD);
+		EXPECT_GT(flags, -1);
+		EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	/*
+	 * We had a shared file descriptor table before along with requesting
+	 * close-on-exec so the original fds must not be close-on-exec.
+	 */
+	flags = fcntl(fd1, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+	flags = fcntl(fd2, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+	fd3 = dup2(fd1, 42);
+	EXPECT_GT(fd3, 0);
+
+	flags = fcntl(fd1, F_DUPFD_QUERY, fd3);
+	if (flags < 0) {
+		EXPECT_EQ(errno, EINVAL);
+	} else {
+		EXPECT_EQ(flags, 1);
+	}
+
+	fd4 = open("/dev/null", O_RDWR);
+	EXPECT_GT(fd4, 0);
+
+	/* Same inode, different file pointers. */
+	flags = fcntl(fd1, F_DUPFD_QUERY, fd4);
+	if (flags < 0) {
+		EXPECT_EQ(errno, EINVAL);
+	} else {
+		EXPECT_EQ(flags, 0);
+	}
+
+	flags = fcntl(fd3, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+	EXPECT_EQ(close(fd1), 0);
+	EXPECT_EQ(close(fd2), 0);
+	EXPECT_EQ(close(fd3), 0);
+	EXPECT_EQ(close(fd4), 0);
+}
+
+/*
+ * Regression test for syzbot+96cfd2b22b3213646a93@syzkaller.appspotmail.com
+ */
+TEST(close_range_cloexec_unshare_syzbot)
+{
+	int i, fd1, fd2, fd3, flags, ret, status;
+	pid_t pid;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	/*
+	 * Create a huge gap in the fd table. When we now call
+	 * CLOSE_RANGE_UNSHARE with a shared fd table and and with ~0U as upper
+	 * bound the kernel will only copy up to fd1 file descriptors into the
+	 * new fd table. If the kernel is buggy and doesn't handle
+	 * CLOSE_RANGE_CLOEXEC correctly it will not have copied all file
+	 * descriptors and we will oops!
+	 *
+	 * On a buggy kernel this should immediately oops. But let's loop just
+	 * to be sure.
+	 */
+	fd1 = open("/dev/null", O_RDWR);
+	EXPECT_GT(fd1, 0);
+
+	fd2 = dup2(fd1, 1000);
+	EXPECT_GT(fd2, 0);
+
+	for (i = 0; i < 100; i++) {
+
+		pid = sys_clone3(&args, sizeof(args));
+		ASSERT_GE(pid, 0);
+
+		if (pid == 0) {
+			ret = sys_close_range(3, ~0U, CLOSE_RANGE_UNSHARE |
+						      CLOSE_RANGE_CLOEXEC);
+			if (ret)
+				exit(EXIT_FAILURE);
+
+			/*
+			 * We now have a private file descriptor table and all
+			 * our open fds should still be open but made
+			 * close-on-exec.
+			 */
+			flags = fcntl(fd1, F_GETFD);
+			EXPECT_GT(flags, -1);
+			EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+			flags = fcntl(fd2, F_GETFD);
+			EXPECT_GT(flags, -1);
+			EXPECT_EQ(flags & FD_CLOEXEC, FD_CLOEXEC);
+
+			fd3 = dup2(fd1, 42);
+			EXPECT_GT(fd3, 0);
+
+			/*
+			 * Duplicating the file descriptor must remove the
+			 * FD_CLOEXEC flag.
+			 */
+			flags = fcntl(fd3, F_GETFD);
+			EXPECT_GT(flags, -1);
+			EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+			EXPECT_EQ(close(fd1), 0);
+			EXPECT_EQ(close(fd2), 0);
+			EXPECT_EQ(close(fd3), 0);
+
+			exit(EXIT_SUCCESS);
+		}
+
+		EXPECT_EQ(waitpid(pid, &status, 0), pid);
+		EXPECT_EQ(true, WIFEXITED(status));
+		EXPECT_EQ(0, WEXITSTATUS(status));
+	}
+
+	/*
+	 * We created a private file descriptor table before along with
+	 * requesting close-on-exec so the original fds must not be
+	 * close-on-exec.
+	 */
+	flags = fcntl(fd1, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+	flags = fcntl(fd2, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+	fd3 = dup2(fd1, 42);
+	EXPECT_GT(fd3, 0);
+
+	flags = fcntl(fd3, F_GETFD);
+	EXPECT_GT(flags, -1);
+	EXPECT_EQ(flags & FD_CLOEXEC, 0);
+
+	EXPECT_EQ(close(fd1), 0);
+	EXPECT_EQ(close(fd2), 0);
+	EXPECT_EQ(close(fd3), 0);
+}
+
+TEST(close_range_bitmap_corruption)
+{
+	pid_t pid;
+	int status;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	/* get the first 128 descriptors open */
+	for (int i = 2; i < 128; i++)
+		EXPECT_GE(dup2(0, i), 0);
+
+	/* get descriptor table shared */
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* unshare and truncate descriptor table down to 64 */
+		if (sys_close_range(64, ~0U, CLOSE_RANGE_UNSHARE))
+			exit(EXIT_FAILURE);
+
+		ASSERT_EQ(fcntl(64, F_GETFD), -1);
+		/* ... and verify that the range 64..127 is not
+		   stuck "fully used" according to secondary bitmap */
+		EXPECT_EQ(dup(0), 64)
+			exit(EXIT_FAILURE);
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(fcntl_created)
+{
+	for (int i = 0; i < 101; i++) {
+		int fd;
+		char path[PATH_MAX];
+
+		fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(fd, 0) {
+			if (errno == ENOENT)
+				SKIP(return,
+					   "Skipping test since /dev/null does not exist");
+		}
+
+		/* We didn't create "/dev/null". */
+		EXPECT_EQ(fcntl(fd, F_CREATED_QUERY, 0), 0);
+		close(fd);
+
+		sprintf(path, "aaaa_%d", i);
+		fd = open(path, O_CREAT | O_RDONLY | O_CLOEXEC, 0600);
+		ASSERT_GE(fd, 0);
+
+		/* We created "aaaa_%d". */
+		EXPECT_EQ(fcntl(fd, F_CREATED_QUERY, 0), 1);
+		close(fd);
+
+		fd = open(path, O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(fd, 0);
+
+		/* We're opening it again, so no positive creation check. */
+		EXPECT_EQ(fcntl(fd, F_CREATED_QUERY, 0), 0);
+		close(fd);
+		unlink(path);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/core/unshare_test.c b/tools/testing/selftests/core/unshare_test.c
new file mode 100644
index 000000000000..ffce75a6c228
--- /dev/null
+++ b/tools/testing/selftests/core/unshare_test.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/kernel.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <unistd.h>
+#include <sys/resource.h>
+#include <linux/close_range.h>
+
+#include "kselftest_harness.h"
+#include "../clone3/clone3_selftests.h"
+
+TEST(unshare_EMFILE)
+{
+	pid_t pid;
+	int status;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+	int fd;
+	ssize_t n, n2;
+	static char buf[512], buf2[512];
+	struct rlimit rlimit;
+	int nr_open;
+
+	fd = open("/proc/sys/fs/nr_open", O_RDWR);
+	ASSERT_GE(fd, 0);
+
+	n = read(fd, buf, sizeof(buf));
+	ASSERT_GT(n, 0);
+	ASSERT_EQ(buf[n - 1], '\n');
+
+	ASSERT_EQ(sscanf(buf, "%d", &nr_open), 1);
+
+	ASSERT_EQ(0, getrlimit(RLIMIT_NOFILE, &rlimit));
+
+	/* bump fs.nr_open */
+	n2 = sprintf(buf2, "%d\n", nr_open + 1024);
+	lseek(fd, 0, SEEK_SET);
+	write(fd, buf2, n2);
+
+	/* bump ulimit -n */
+	rlimit.rlim_cur = nr_open + 1024;
+	rlimit.rlim_max = nr_open + 1024;
+	EXPECT_EQ(0, setrlimit(RLIMIT_NOFILE, &rlimit)) {
+		lseek(fd, 0, SEEK_SET);
+		write(fd, buf, n);
+		exit(EXIT_FAILURE);
+	}
+
+	/* get a descriptor past the old fs.nr_open */
+	EXPECT_GE(dup2(2, nr_open + 64), 0) {
+		lseek(fd, 0, SEEK_SET);
+		write(fd, buf, n);
+		exit(EXIT_FAILURE);
+	}
+
+	/* get descriptor table shared */
+	pid = sys_clone3(&args, sizeof(args));
+	EXPECT_GE(pid, 0) {
+		lseek(fd, 0, SEEK_SET);
+		write(fd, buf, n);
+		exit(EXIT_FAILURE);
+	}
+
+	if (pid == 0) {
+		int err;
+
+		/* restore fs.nr_open */
+		lseek(fd, 0, SEEK_SET);
+		write(fd, buf, n);
+		/* ... and now unshare(CLONE_FILES) must fail with EMFILE */
+		err = unshare(CLONE_FILES);
+		EXPECT_EQ(err, -1)
+			exit(EXIT_FAILURE);
+		EXPECT_EQ(errno, EMFILE)
+			exit(EXIT_FAILURE);
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/coredump/.gitignore b/tools/testing/selftests/coredump/.gitignore
new file mode 100644
index 000000000000..097f52db0be9
--- /dev/null
+++ b/tools/testing/selftests/coredump/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+stackdump_test
+coredump_socket_test
+coredump_socket_protocol_test
diff --git a/tools/testing/selftests/coredump/Makefile b/tools/testing/selftests/coredump/Makefile
new file mode 100644
index 000000000000..dece1a31d561
--- /dev/null
+++ b/tools/testing/selftests/coredump/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -Wall -O0 -g $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
+
+TEST_GEN_PROGS := stackdump_test \
+		  coredump_socket_test \
+		  coredump_socket_protocol_test
+TEST_FILES := stackdump
+
+include ../lib.mk
+
+$(OUTPUT)/stackdump_test: coredump_test_helpers.c
+$(OUTPUT)/coredump_socket_test: coredump_test_helpers.c
+$(OUTPUT)/coredump_socket_protocol_test: coredump_test_helpers.c
diff --git a/tools/testing/selftests/coredump/README.rst b/tools/testing/selftests/coredump/README.rst
new file mode 100644
index 000000000000..164a7aa181c8
--- /dev/null
+++ b/tools/testing/selftests/coredump/README.rst
@@ -0,0 +1,50 @@
+coredump selftest
+=================
+
+Background context
+------------------
+
+`coredump` is a feature which dumps a process's memory space when the process terminates
+unexpectedly (e.g. due to segmentation fault), which can be useful for debugging. By default,
+`coredump` dumps the memory to the file named `core`, but this behavior can be changed by writing a
+different file name to `/proc/sys/kernel/core_pattern`. Furthermore, `coredump` can be piped to a
+user-space program by writing the pipe symbol (`|`) followed by the command to be executed to
+`/proc/sys/kernel/core_pattern`. For the full description, see `man 5 core`.
+
+The piped user program may be interested in reading the stack pointers of the crashed process. The
+crashed process's stack pointers can be read from `procfs`: it is the `kstkesp` field in
+`/proc/$PID/stat`. See `man 5 proc` for all the details.
+
+The problem
+-----------
+While a thread is active, the stack pointer is unsafe to read and therefore the `kstkesp` field
+reads zero. But when the thread is dead (e.g. during a coredump), this field should have valid
+value.
+
+However, this was broken in the past and `kstkesp` was zero even during coredump:
+
+* commit 0a1eb2d474ed ("fs/proc: Stop reporting eip and esp in /proc/PID/stat") changed kstkesp to
+  always be zero
+
+* commit fd7d56270b52 ("fs/proc: Report eip/esp in /prod/PID/stat for coredumping") fixed it for the
+  coredumping thread. However, other threads in a coredumping process still had the problem.
+
+* commit cb8f381f1613 ("fs/proc/array.c: allow reporting eip/esp for all coredumping threads") fixed
+  for all threads in a coredumping process.
+
+* commit 92307383082d ("coredump:  Don't perform any cleanups before dumping core") broke it again
+  for the other threads in a coredumping process.
+
+The problem has been fixed now, but considering the history, it may appear again in the future.
+
+The goal of this test
+---------------------
+This test detects problem with reading `kstkesp` during coredump by doing the following:
+
+#. Tell the kernel to execute the "stackdump" script when a coredump happens. This script
+   reads the stack pointers of all threads of crashed processes.
+
+#. Spawn a child process who creates some threads and then crashes.
+
+#. Read the output from the "stackdump" script, and make sure all stack pointer values are
+   non-zero.
diff --git a/tools/testing/selftests/coredump/config b/tools/testing/selftests/coredump/config
new file mode 100644
index 000000000000..a05ef112b4f9
--- /dev/null
+++ b/tools/testing/selftests/coredump/config
@@ -0,0 +1,3 @@
+CONFIG_COREDUMP=y
+CONFIG_NET=y
+CONFIG_UNIX=y
diff --git a/tools/testing/selftests/coredump/coredump_socket_protocol_test.c b/tools/testing/selftests/coredump/coredump_socket_protocol_test.c
new file mode 100644
index 000000000000..d19b6717c53e
--- /dev/null
+++ b/tools/testing/selftests/coredump/coredump_socket_protocol_test.c
@@ -0,0 +1,1568 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/stat.h>
+#include <sys/epoll.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "coredump_test.h"
+
+#define NUM_CRASHING_COREDUMPS 5
+
+FIXTURE_SETUP(coredump)
+{
+	FILE *file;
+	int ret;
+
+	self->pid_coredump_server = -ESRCH;
+	self->fd_tmpfs_detached = -1;
+	file = fopen("/proc/sys/kernel/core_pattern", "r");
+	ASSERT_NE(NULL, file);
+
+	ret = fread(self->original_core_pattern, 1, sizeof(self->original_core_pattern), file);
+	ASSERT_TRUE(ret || feof(file));
+	ASSERT_LT(ret, sizeof(self->original_core_pattern));
+
+	self->original_core_pattern[ret] = '\0';
+	self->fd_tmpfs_detached = create_detached_tmpfs();
+	ASSERT_GE(self->fd_tmpfs_detached, 0);
+
+	ret = fclose(file);
+	ASSERT_EQ(0, ret);
+}
+
+FIXTURE_TEARDOWN(coredump)
+{
+	const char *reason;
+	FILE *file;
+	int ret, status;
+
+	if (self->pid_coredump_server > 0) {
+		kill(self->pid_coredump_server, SIGTERM);
+		waitpid(self->pid_coredump_server, &status, 0);
+	}
+	unlink("/tmp/coredump.file");
+	unlink("/tmp/coredump.socket");
+
+	file = fopen("/proc/sys/kernel/core_pattern", "w");
+	if (!file) {
+		reason = "Unable to open core_pattern";
+		goto fail;
+	}
+
+	ret = fprintf(file, "%s", self->original_core_pattern);
+	if (ret < 0) {
+		reason = "Unable to write to core_pattern";
+		goto fail;
+	}
+
+	ret = fclose(file);
+	if (ret) {
+		reason = "Unable to close core_pattern";
+		goto fail;
+	}
+
+	if (self->fd_tmpfs_detached >= 0) {
+		ret = close(self->fd_tmpfs_detached);
+		if (ret < 0) {
+			reason = "Unable to close detached tmpfs";
+			goto fail;
+		}
+		self->fd_tmpfs_detached = -1;
+	}
+
+	return;
+fail:
+	/* This should never happen */
+	fprintf(stderr, "Failed to cleanup coredump test: %s\n", reason);
+}
+
+TEST_F(coredump, socket_request_kernel)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct stat st;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_core_file = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_kernel: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_kernel: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_kernel: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_kernel: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_kernel: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_kernel: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_kernel: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		fd_core_file = creat("/tmp/coredump.file", 0644);
+		if (fd_core_file < 0) {
+			fprintf(stderr, "socket_request_kernel: creat coredump file failed: %m\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_kernel: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_kernel: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_KERNEL | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_request_kernel: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+			fprintf(stderr, "socket_request_kernel: read_marker COREDUMP_MARK_REQACK failed\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read, bytes_write;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket_request_kernel: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+
+			bytes_write = write(fd_core_file, buffer, bytes_read);
+			if (bytes_read != bytes_write) {
+				if (bytes_write < 0 && errno == ENOSPC)
+					continue;
+				fprintf(stderr, "socket_request_kernel: write to core file failed (read=%zd, write=%zd): %m\n",
+					bytes_read, bytes_write);
+				goto out;
+			}
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_kernel: completed successfully\n");
+out:
+		if (fd_core_file >= 0)
+			close(fd_core_file);
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+
+	ASSERT_EQ(stat("/tmp/coredump.file", &st), 0);
+	ASSERT_GT(st.st_size, 0);
+	system("file /tmp/coredump.file");
+}
+
+TEST_F(coredump, socket_request_userspace)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_userspace: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_userspace: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_userspace: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_userspace: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_userspace: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_userspace: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_userspace: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_userspace: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_userspace: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_USERSPACE | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_request_userspace: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+			fprintf(stderr, "socket_request_userspace: read_marker COREDUMP_MARK_REQACK failed\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read > 0) {
+				fprintf(stderr, "socket_request_userspace: unexpected data received (expected no coredump data)\n");
+				goto out;
+			}
+
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket_request_userspace: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_userspace: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_request_reject)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_reject: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_reject: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_reject: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_reject: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_reject: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_reject: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_reject: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_reject: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_reject: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_REJECT | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_request_reject: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+			fprintf(stderr, "socket_request_reject: read_marker COREDUMP_MARK_REQACK failed\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read > 0) {
+				fprintf(stderr, "socket_request_reject: unexpected data received (expected no coredump data for REJECT)\n");
+				goto out;
+			}
+
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket_request_reject: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_reject: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_request_invalid_flag_combination)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_KERNEL | COREDUMP_REJECT | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_CONFLICTING)) {
+			fprintf(stderr, "socket_request_invalid_flag_combination: read_marker COREDUMP_MARK_CONFLICTING failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_invalid_flag_combination: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_request_unknown_flag)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_unknown_flag: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_unknown_flag: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_unknown_flag: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_unknown_flag: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_unknown_flag: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_unknown_flag: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_unknown_flag: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_unknown_flag: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_unknown_flag: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req, (1ULL << 63), 0)) {
+			fprintf(stderr, "socket_request_unknown_flag: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_UNSUPPORTED)) {
+			fprintf(stderr, "socket_request_unknown_flag: read_marker COREDUMP_MARK_UNSUPPORTED failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_unknown_flag: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_request_invalid_size_small)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_invalid_size_small: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_invalid_size_small: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_invalid_size_small: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_invalid_size_small: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_invalid_size_small: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_invalid_size_small: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_invalid_size_small: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_invalid_size_small: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_invalid_size_small: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_REJECT | COREDUMP_WAIT,
+				       COREDUMP_ACK_SIZE_VER0 / 2)) {
+			fprintf(stderr, "socket_request_invalid_size_small: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_MINSIZE)) {
+			fprintf(stderr, "socket_request_invalid_size_small: read_marker COREDUMP_MARK_MINSIZE failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_invalid_size_small: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_request_invalid_size_large)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_request_invalid_size_large: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_request_invalid_size_large: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_request_invalid_size_large: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_request_invalid_size_large: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_request_invalid_size_large: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_request_invalid_size_large: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_request_invalid_size_large: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_request_invalid_size_large: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+					COREDUMP_KERNEL | COREDUMP_USERSPACE |
+					COREDUMP_REJECT | COREDUMP_WAIT)) {
+			fprintf(stderr, "socket_request_invalid_size_large: check_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_REJECT | COREDUMP_WAIT,
+				       COREDUMP_ACK_SIZE_VER0 + PAGE_SIZE)) {
+			fprintf(stderr, "socket_request_invalid_size_large: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_MAXSIZE)) {
+			fprintf(stderr, "socket_request_invalid_size_large: read_marker COREDUMP_MARK_MAXSIZE failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_request_invalid_size_large: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+/*
+ * Test: PIDFD_INFO_COREDUMP_SIGNAL via socket coredump with SIGSEGV
+ *
+ * Verify that when using socket-based coredump protocol,
+ * the coredump_signal field is correctly exposed as SIGSEGV.
+ */
+TEST_F(coredump, socket_coredump_signal_sigsegv)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		/* Verify coredump_signal is available and correct */
+		if (!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_INFO_COREDUMP_SIGNAL not set in mask\n");
+			goto out;
+		}
+
+		if (info.coredump_signal != SIGSEGV) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: coredump_signal=%d, expected SIGSEGV=%d\n",
+				info.coredump_signal, SIGSEGV);
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_REJECT | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: read_marker COREDUMP_MARK_REQACK failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_coredump_signal_sigsegv: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGSEGV);
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL));
+	ASSERT_EQ(info.coredump_signal, SIGSEGV);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+/*
+ * Test: PIDFD_INFO_COREDUMP_SIGNAL via socket coredump with SIGABRT
+ *
+ * Verify that when using socket-based coredump protocol,
+ * the coredump_signal field is correctly exposed as SIGABRT.
+ */
+TEST_F(coredump, socket_coredump_signal_sigabrt)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		struct coredump_req req = {};
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		/* Verify coredump_signal is available and correct */
+		if (!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_INFO_COREDUMP_SIGNAL not set in mask\n");
+			goto out;
+		}
+
+		if (info.coredump_signal != SIGABRT) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: coredump_signal=%d, expected SIGABRT=%d\n",
+				info.coredump_signal, SIGABRT);
+			goto out;
+		}
+
+		if (!read_coredump_req(fd_coredump, &req)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: read_coredump_req failed\n");
+			goto out;
+		}
+
+		if (!send_coredump_ack(fd_coredump, &req,
+				       COREDUMP_REJECT | COREDUMP_WAIT, 0)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: send_coredump_ack failed\n");
+			goto out;
+		}
+
+		if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: read_marker COREDUMP_MARK_REQACK failed\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_coredump_signal_sigabrt: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		abort();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGABRT);
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL));
+	ASSERT_EQ(info.coredump_signal, SIGABRT);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F_TIMEOUT(coredump, socket_multiple_crashing_coredumps, 500)
+{
+	int pidfd[NUM_CRASHING_COREDUMPS], status[NUM_CRASHING_COREDUMPS];
+	pid_t pid[NUM_CRASHING_COREDUMPS], pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1, fd_core_file = -1;
+		int exit_code = EXIT_FAILURE;
+		struct coredump_req req = {};
+
+		close(ipc_sockets[0]);
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "Failed to create and listen on unix socket\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "Failed to notify parent via ipc socket\n");
+			goto out;
+		}
+		close(ipc_sockets[1]);
+
+		for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+			fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+			if (fd_coredump < 0) {
+				fprintf(stderr, "accept4 failed: %m\n");
+				goto out;
+			}
+
+			fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+			if (fd_peer_pidfd < 0) {
+				fprintf(stderr, "get_peer_pidfd failed for fd %d: %m\n", fd_coredump);
+				goto out;
+			}
+
+			if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+				fprintf(stderr, "get_pidfd_info failed for fd %d\n", fd_peer_pidfd);
+				goto out;
+			}
+
+			if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+				fprintf(stderr, "pidfd info missing PIDFD_INFO_COREDUMP for fd %d\n", fd_peer_pidfd);
+				goto out;
+			}
+			if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+				fprintf(stderr, "pidfd info missing PIDFD_COREDUMPED for fd %d\n", fd_peer_pidfd);
+				goto out;
+			}
+
+			if (!read_coredump_req(fd_coredump, &req)) {
+				fprintf(stderr, "read_coredump_req failed for fd %d\n", fd_coredump);
+				goto out;
+			}
+
+			if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+						COREDUMP_KERNEL | COREDUMP_USERSPACE |
+						COREDUMP_REJECT | COREDUMP_WAIT)) {
+				fprintf(stderr, "check_coredump_req failed for fd %d\n", fd_coredump);
+				goto out;
+			}
+
+			if (!send_coredump_ack(fd_coredump, &req,
+					       COREDUMP_KERNEL | COREDUMP_WAIT, 0)) {
+				fprintf(stderr, "send_coredump_ack failed for fd %d\n", fd_coredump);
+				goto out;
+			}
+
+			if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+				fprintf(stderr, "read_marker failed for fd %d\n", fd_coredump);
+				goto out;
+			}
+
+			fd_core_file = open_coredump_tmpfile(self->fd_tmpfs_detached);
+			if (fd_core_file < 0) {
+				fprintf(stderr, "%m - open_coredump_tmpfile failed for fd %d\n", fd_coredump);
+				goto out;
+			}
+
+			for (;;) {
+				char buffer[4096];
+				ssize_t bytes_read, bytes_write;
+
+				bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+				if (bytes_read < 0) {
+					fprintf(stderr, "read failed for fd %d: %m\n", fd_coredump);
+					goto out;
+				}
+
+				if (bytes_read == 0)
+					break;
+
+				bytes_write = write(fd_core_file, buffer, bytes_read);
+				if (bytes_read != bytes_write) {
+					if (bytes_write < 0 && errno == ENOSPC)
+						continue;
+					fprintf(stderr, "write failed for fd %d: %m\n", fd_core_file);
+					goto out;
+				}
+			}
+
+			close(fd_core_file);
+			close(fd_peer_pidfd);
+			close(fd_coredump);
+			fd_peer_pidfd = -1;
+			fd_coredump = -1;
+		}
+
+		exit_code = EXIT_SUCCESS;
+out:
+		if (fd_core_file >= 0)
+			close(fd_core_file);
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		pid[i] = fork();
+		ASSERT_GE(pid[i], 0);
+		if (pid[i] == 0)
+			crashing_child();
+		pidfd[i] = sys_pidfd_open(pid[i], 0);
+		ASSERT_GE(pidfd[i], 0);
+	}
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		waitpid(pid[i], &status[i], 0);
+		ASSERT_TRUE(WIFSIGNALED(status[i]));
+		ASSERT_TRUE(WCOREDUMP(status[i]));
+	}
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		info.mask = PIDFD_INFO_EXIT | PIDFD_INFO_COREDUMP;
+		ASSERT_EQ(ioctl(pidfd[i], PIDFD_GET_INFO, &info), 0);
+		ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+		ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+	}
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F_TIMEOUT(coredump, socket_multiple_crashing_coredumps_epoll_workers, 500)
+{
+	int pidfd[NUM_CRASHING_COREDUMPS], status[NUM_CRASHING_COREDUMPS];
+	pid_t pid[NUM_CRASHING_COREDUMPS], pid_coredump_server, worker_pids[NUM_CRASHING_COREDUMPS];
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@@/tmp/coredump.socket"));
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, exit_code = EXIT_FAILURE, n_conns = 0;
+		fd_server = -1;
+		exit_code = EXIT_FAILURE;
+		n_conns = 0;
+		close(ipc_sockets[0]);
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+		close(ipc_sockets[1]);
+
+		while (n_conns < NUM_CRASHING_COREDUMPS) {
+			int fd_coredump = -1, fd_peer_pidfd = -1, fd_core_file = -1;
+			struct coredump_req req = {};
+			fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+			if (fd_coredump < 0) {
+				if (errno == EAGAIN || errno == EWOULDBLOCK)
+					continue;
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: accept4 failed: %m\n");
+				goto out;
+			}
+			fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+			if (fd_peer_pidfd < 0) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: get_peer_pidfd failed\n");
+				goto out;
+			}
+			if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: get_pidfd_info failed\n");
+				goto out;
+			}
+			if (!(info.mask & PIDFD_INFO_COREDUMP) || !(info.coredump_mask & PIDFD_COREDUMPED)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: missing PIDFD_INFO_COREDUMP or PIDFD_COREDUMPED\n");
+				goto out;
+			}
+			if (!read_coredump_req(fd_coredump, &req)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: read_coredump_req failed\n");
+				goto out;
+			}
+			if (!check_coredump_req(&req, COREDUMP_ACK_SIZE_VER0,
+						COREDUMP_KERNEL | COREDUMP_USERSPACE |
+						COREDUMP_REJECT | COREDUMP_WAIT)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: check_coredump_req failed\n");
+				goto out;
+			}
+			if (!send_coredump_ack(fd_coredump, &req, COREDUMP_KERNEL | COREDUMP_WAIT, 0)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: send_coredump_ack failed\n");
+				goto out;
+			}
+			if (!read_marker(fd_coredump, COREDUMP_MARK_REQACK)) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: read_marker failed\n");
+				goto out;
+			}
+			fd_core_file = open_coredump_tmpfile(self->fd_tmpfs_detached);
+			if (fd_core_file < 0) {
+				fprintf(stderr, "socket_multiple_crashing_coredumps_epoll_workers: open_coredump_tmpfile failed: %m\n");
+				goto out;
+			}
+			pid_t worker = fork();
+			if (worker == 0) {
+				close(fd_server);
+				process_coredump_worker(fd_coredump, fd_peer_pidfd, fd_core_file);
+			}
+			worker_pids[n_conns] = worker;
+			if (fd_coredump >= 0)
+				close(fd_coredump);
+			if (fd_peer_pidfd >= 0)
+				close(fd_peer_pidfd);
+			if (fd_core_file >= 0)
+				close(fd_core_file);
+			n_conns++;
+		}
+		exit_code = EXIT_SUCCESS;
+out:
+		if (fd_server >= 0)
+			close(fd_server);
+
+		// Reap all worker processes
+		for (int i = 0; i < n_conns; i++) {
+			int wstatus;
+			if (waitpid(worker_pids[i], &wstatus, 0) < 0) {
+				fprintf(stderr, "Failed to wait for worker %d: %m\n", worker_pids[i]);
+			} else if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) != EXIT_SUCCESS) {
+				fprintf(stderr, "Worker %d exited with error code %d\n", worker_pids[i], WEXITSTATUS(wstatus));
+				exit_code = EXIT_FAILURE;
+			}
+		}
+
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		pid[i] = fork();
+		ASSERT_GE(pid[i], 0);
+		if (pid[i] == 0)
+			crashing_child();
+		pidfd[i] = sys_pidfd_open(pid[i], 0);
+		ASSERT_GE(pidfd[i], 0);
+	}
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		ASSERT_GE(waitpid(pid[i], &status[i], 0), 0);
+		ASSERT_TRUE(WIFSIGNALED(status[i]));
+		ASSERT_TRUE(WCOREDUMP(status[i]));
+	}
+
+	for (int i = 0; i < NUM_CRASHING_COREDUMPS; i++) {
+		info.mask = PIDFD_INFO_EXIT | PIDFD_INFO_COREDUMP;
+		ASSERT_EQ(ioctl(pidfd[i], PIDFD_GET_INFO, &info), 0);
+		ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+		ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+	}
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/coredump/coredump_socket_test.c b/tools/testing/selftests/coredump/coredump_socket_test.c
new file mode 100644
index 000000000000..7e26d4a6a15d
--- /dev/null
+++ b/tools/testing/selftests/coredump/coredump_socket_test.c
@@ -0,0 +1,742 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/stat.h>
+#include <sys/epoll.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "coredump_test.h"
+
+FIXTURE_SETUP(coredump)
+{
+	FILE *file;
+	int ret;
+
+	self->pid_coredump_server = -ESRCH;
+	self->fd_tmpfs_detached = -1;
+	file = fopen("/proc/sys/kernel/core_pattern", "r");
+	ASSERT_NE(NULL, file);
+
+	ret = fread(self->original_core_pattern, 1, sizeof(self->original_core_pattern), file);
+	ASSERT_TRUE(ret || feof(file));
+	ASSERT_LT(ret, sizeof(self->original_core_pattern));
+
+	self->original_core_pattern[ret] = '\0';
+	self->fd_tmpfs_detached = create_detached_tmpfs();
+	ASSERT_GE(self->fd_tmpfs_detached, 0);
+
+	ret = fclose(file);
+	ASSERT_EQ(0, ret);
+}
+
+FIXTURE_TEARDOWN(coredump)
+{
+	const char *reason;
+	FILE *file;
+	int ret, status;
+
+	if (self->pid_coredump_server > 0) {
+		kill(self->pid_coredump_server, SIGTERM);
+		waitpid(self->pid_coredump_server, &status, 0);
+	}
+	unlink("/tmp/coredump.file");
+	unlink("/tmp/coredump.socket");
+
+	file = fopen("/proc/sys/kernel/core_pattern", "w");
+	if (!file) {
+		reason = "Unable to open core_pattern";
+		goto fail;
+	}
+
+	ret = fprintf(file, "%s", self->original_core_pattern);
+	if (ret < 0) {
+		reason = "Unable to write to core_pattern";
+		goto fail;
+	}
+
+	ret = fclose(file);
+	if (ret) {
+		reason = "Unable to close core_pattern";
+		goto fail;
+	}
+
+	if (self->fd_tmpfs_detached >= 0) {
+		ret = close(self->fd_tmpfs_detached);
+		if (ret < 0) {
+			reason = "Unable to close detached tmpfs";
+			goto fail;
+		}
+		self->fd_tmpfs_detached = -1;
+	}
+
+	return;
+fail:
+	/* This should never happen */
+	fprintf(stderr, "Failed to cleanup coredump test: %s\n", reason);
+}
+
+TEST_F(coredump, socket)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct stat st;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1, fd_core_file = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket test: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket test: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket test: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket test: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket test: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket test: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket test: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		fd_core_file = creat("/tmp/coredump.file", 0644);
+		if (fd_core_file < 0) {
+			fprintf(stderr, "socket test: creat coredump file failed: %m\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read, bytes_write;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket test: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+
+			bytes_write = write(fd_core_file, buffer, bytes_read);
+			if (bytes_read != bytes_write) {
+				if (bytes_write < 0 && errno == ENOSPC)
+					continue;
+				fprintf(stderr, "socket test: write to core file failed (read=%zd, write=%zd): %m\n", bytes_read, bytes_write);
+				goto out;
+			}
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket test: completed successfully\n");
+out:
+		if (fd_core_file >= 0)
+			close(fd_core_file);
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_GT((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+
+	ASSERT_EQ(stat("/tmp/coredump.file", &st), 0);
+	ASSERT_GT(st.st_size, 0);
+}
+
+TEST_F(coredump, socket_detect_userspace_client)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct stat st;
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_COREDUMP,
+	};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_detect_userspace_client: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_detect_userspace_client: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_detect_userspace_client: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_detect_userspace_client: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_detect_userspace_client: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_detect_userspace_client: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (info.coredump_mask & PIDFD_COREDUMPED) {
+			fprintf(stderr, "socket_detect_userspace_client: PIDFD_COREDUMPED incorrectly set (should be userspace client)\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_detect_userspace_client: completed successfully\n");
+out:
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		int fd_socket;
+		ssize_t ret;
+		const struct sockaddr_un coredump_sk = {
+			.sun_family = AF_UNIX,
+			.sun_path = "/tmp/coredump.socket",
+		};
+		size_t coredump_sk_len =
+			offsetof(struct sockaddr_un, sun_path) +
+			sizeof("/tmp/coredump.socket");
+
+		fd_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+		if (fd_socket < 0) {
+			fprintf(stderr, "socket_detect_userspace_client (client): socket failed: %m\n");
+			_exit(EXIT_FAILURE);
+		}
+
+		ret = connect(fd_socket, (const struct sockaddr *)&coredump_sk, coredump_sk_len);
+		if (ret < 0) {
+			fprintf(stderr, "socket_detect_userspace_client (client): connect failed: %m\n");
+			_exit(EXIT_FAILURE);
+		}
+
+		close(fd_socket);
+		pause();
+		fprintf(stderr, "socket_detect_userspace_client (client): completed successfully\n");
+		_exit(EXIT_SUCCESS);
+	}
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_GT((info.mask & PIDFD_INFO_COREDUMP), 0);
+	ASSERT_EQ((info.coredump_mask & PIDFD_COREDUMPED), 0);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+
+	ASSERT_EQ(sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0), 0);
+	ASSERT_EQ(close(pidfd), 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGKILL);
+
+	ASSERT_NE(stat("/tmp/coredump.file", &st), 0);
+	ASSERT_EQ(errno, ENOENT);
+}
+
+TEST_F(coredump, socket_enoent)
+{
+	int pidfd, status;
+	pid_t pid;
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+}
+
+TEST_F(coredump, socket_no_listener)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	int ipc_sockets[2];
+	char c;
+	const struct sockaddr_un coredump_sk = {
+		.sun_family = AF_UNIX,
+		.sun_path = "/tmp/coredump.socket",
+	};
+	size_t coredump_sk_len = offsetof(struct sockaddr_un, sun_path) +
+				 sizeof("/tmp/coredump.socket");
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_no_listener: socket failed: %m\n");
+			goto out;
+		}
+
+		ret = bind(fd_server, (const struct sockaddr *)&coredump_sk, coredump_sk_len);
+		if (ret < 0) {
+			fprintf(stderr, "socket_no_listener: bind failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_no_listener: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_no_listener: completed successfully\n");
+out:
+		if (fd_server >= 0)
+			close(fd_server);
+		close(ipc_sockets[1]);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_FALSE(WCOREDUMP(status));
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+/*
+ * Test: PIDFD_INFO_COREDUMP_SIGNAL via simple socket coredump
+ *
+ * Verify that when using simple socket-based coredump (@ pattern),
+ * the coredump_signal field is correctly exposed as SIGSEGV.
+ */
+TEST_F(coredump, socket_coredump_signal_sigsegv)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1, fd_core_file = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		/* Verify coredump_signal is available and correct */
+		if (!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL)) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: PIDFD_INFO_COREDUMP_SIGNAL not set in mask\n");
+			goto out;
+		}
+
+		if (info.coredump_signal != SIGSEGV) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: coredump_signal=%d, expected SIGSEGV=%d\n",
+				info.coredump_signal, SIGSEGV);
+			goto out;
+		}
+
+		fd_core_file = open_coredump_tmpfile(self->fd_tmpfs_detached);
+		if (fd_core_file < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigsegv: open_coredump_tmpfile failed: %m\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read, bytes_write;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket_coredump_signal_sigsegv: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+
+			bytes_write = write(fd_core_file, buffer, bytes_read);
+			if (bytes_read != bytes_write) {
+				fprintf(stderr, "socket_coredump_signal_sigsegv: write to core file failed (read=%zd, write=%zd): %m\n",
+					bytes_read, bytes_write);
+				goto out;
+			}
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_coredump_signal_sigsegv: completed successfully\n");
+out:
+		if (fd_core_file >= 0)
+			close(fd_core_file);
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		crashing_child();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGSEGV);
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL));
+	ASSERT_EQ(info.coredump_signal, SIGSEGV);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+/*
+ * Test: PIDFD_INFO_COREDUMP_SIGNAL via simple socket coredump with SIGABRT
+ *
+ * Verify that when using simple socket-based coredump (@ pattern),
+ * the coredump_signal field is correctly exposed as SIGABRT.
+ */
+TEST_F(coredump, socket_coredump_signal_sigabrt)
+{
+	int pidfd, ret, status;
+	pid_t pid, pid_coredump_server;
+	struct pidfd_info info = {};
+	int ipc_sockets[2];
+	char c;
+
+	ASSERT_TRUE(set_core_pattern("@/tmp/coredump.socket"));
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_EQ(ret, 0);
+
+	pid_coredump_server = fork();
+	ASSERT_GE(pid_coredump_server, 0);
+	if (pid_coredump_server == 0) {
+		int fd_server = -1, fd_coredump = -1, fd_peer_pidfd = -1, fd_core_file = -1;
+		int exit_code = EXIT_FAILURE;
+
+		close(ipc_sockets[0]);
+
+		fd_server = create_and_listen_unix_socket("/tmp/coredump.socket");
+		if (fd_server < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: create_and_listen_unix_socket failed: %m\n");
+			goto out;
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: write_nointr to ipc socket failed: %m\n");
+			goto out;
+		}
+
+		close(ipc_sockets[1]);
+
+		fd_coredump = accept4(fd_server, NULL, NULL, SOCK_CLOEXEC);
+		if (fd_coredump < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: accept4 failed: %m\n");
+			goto out;
+		}
+
+		fd_peer_pidfd = get_peer_pidfd(fd_coredump);
+		if (fd_peer_pidfd < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: get_peer_pidfd failed\n");
+			goto out;
+		}
+
+		if (!get_pidfd_info(fd_peer_pidfd, &info)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: get_pidfd_info failed\n");
+			goto out;
+		}
+
+		if (!(info.mask & PIDFD_INFO_COREDUMP)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_INFO_COREDUMP not set in mask\n");
+			goto out;
+		}
+
+		if (!(info.coredump_mask & PIDFD_COREDUMPED)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_COREDUMPED not set in coredump_mask\n");
+			goto out;
+		}
+
+		/* Verify coredump_signal is available and correct */
+		if (!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL)) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: PIDFD_INFO_COREDUMP_SIGNAL not set in mask\n");
+			goto out;
+		}
+
+		if (info.coredump_signal != SIGABRT) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: coredump_signal=%d, expected SIGABRT=%d\n",
+				info.coredump_signal, SIGABRT);
+			goto out;
+		}
+
+		fd_core_file = open_coredump_tmpfile(self->fd_tmpfs_detached);
+		if (fd_core_file < 0) {
+			fprintf(stderr, "socket_coredump_signal_sigabrt: open_coredump_tmpfile failed: %m\n");
+			goto out;
+		}
+
+		for (;;) {
+			char buffer[4096];
+			ssize_t bytes_read, bytes_write;
+
+			bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+			if (bytes_read < 0) {
+				fprintf(stderr, "socket_coredump_signal_sigabrt: read from coredump socket failed: %m\n");
+				goto out;
+			}
+
+			if (bytes_read == 0)
+				break;
+
+			bytes_write = write(fd_core_file, buffer, bytes_read);
+			if (bytes_read != bytes_write) {
+				fprintf(stderr, "socket_coredump_signal_sigabrt: write to core file failed (read=%zd, write=%zd): %m\n",
+					bytes_read, bytes_write);
+				goto out;
+			}
+		}
+
+		exit_code = EXIT_SUCCESS;
+		fprintf(stderr, "socket_coredump_signal_sigabrt: completed successfully\n");
+out:
+		if (fd_core_file >= 0)
+			close(fd_core_file);
+		if (fd_peer_pidfd >= 0)
+			close(fd_peer_pidfd);
+		if (fd_coredump >= 0)
+			close(fd_coredump);
+		if (fd_server >= 0)
+			close(fd_server);
+		_exit(exit_code);
+	}
+	self->pid_coredump_server = pid_coredump_server;
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0)
+		abort();
+
+	pidfd = sys_pidfd_open(pid, 0);
+	ASSERT_GE(pidfd, 0);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGABRT);
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	ASSERT_TRUE(get_pidfd_info(pidfd, &info));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_COREDUMP_SIGNAL));
+	ASSERT_EQ(info.coredump_signal, SIGABRT);
+
+	wait_and_check_coredump_server(pid_coredump_server, _metadata, self);
+}
+
+TEST_F(coredump, socket_invalid_paths)
+{
+	ASSERT_FALSE(set_core_pattern("@ /tmp/coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@/tmp/../coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@../coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@/tmp/coredump.socket/.."));
+	ASSERT_FALSE(set_core_pattern("@.."));
+
+	ASSERT_FALSE(set_core_pattern("@@ /tmp/coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@@/tmp/../coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@@../coredump.socket"));
+	ASSERT_FALSE(set_core_pattern("@@/tmp/coredump.socket/.."));
+	ASSERT_FALSE(set_core_pattern("@@.."));
+
+	ASSERT_FALSE(set_core_pattern("@@@/tmp/coredump.socket"));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/coredump/coredump_test.h b/tools/testing/selftests/coredump/coredump_test.h
new file mode 100644
index 000000000000..ed47f01fa53c
--- /dev/null
+++ b/tools/testing/selftests/coredump/coredump_test.h
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __COREDUMP_TEST_H
+#define __COREDUMP_TEST_H
+
+#include <stdbool.h>
+#include <sys/types.h>
+#include <linux/coredump.h>
+
+#include "../kselftest_harness.h"
+#include "../pidfd/pidfd.h"
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+#define NUM_THREAD_SPAWN 128
+
+/* Coredump fixture */
+FIXTURE(coredump)
+{
+	char original_core_pattern[256];
+	pid_t pid_coredump_server;
+	int fd_tmpfs_detached;
+};
+
+/* Shared helper function declarations */
+void *do_nothing(void *arg);
+void crashing_child(void);
+int create_detached_tmpfs(void);
+int create_and_listen_unix_socket(const char *path);
+bool set_core_pattern(const char *pattern);
+int get_peer_pidfd(int fd);
+bool get_pidfd_info(int fd_peer_pidfd, struct pidfd_info *info);
+
+/* Inline helper that uses harness types */
+static inline void wait_and_check_coredump_server(pid_t pid_coredump_server,
+						   struct __test_metadata *const _metadata,
+						   FIXTURE_DATA(coredump) *self)
+{
+	int status;
+	waitpid(pid_coredump_server, &status, 0);
+	self->pid_coredump_server = -ESRCH;
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+}
+
+/* Protocol helper function declarations */
+ssize_t recv_marker(int fd);
+bool read_marker(int fd, enum coredump_mark mark);
+bool read_coredump_req(int fd, struct coredump_req *req);
+bool send_coredump_ack(int fd, const struct coredump_req *req,
+		       __u64 mask, size_t size_ack);
+bool check_coredump_req(const struct coredump_req *req, size_t min_size,
+			__u64 required_mask);
+int open_coredump_tmpfile(int fd_tmpfs_detached);
+void process_coredump_worker(int fd_coredump, int fd_peer_pidfd, int fd_core_file);
+
+#endif /* __COREDUMP_TEST_H */
diff --git a/tools/testing/selftests/coredump/coredump_test_helpers.c b/tools/testing/selftests/coredump/coredump_test_helpers.c
new file mode 100644
index 000000000000..a6f6d5f2ae07
--- /dev/null
+++ b/tools/testing/selftests/coredump/coredump_test_helpers.c
@@ -0,0 +1,383 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/coredump.h>
+#include <linux/fs.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "../filesystems/wrappers.h"
+#include "../pidfd/pidfd.h"
+
+/* Forward declarations to avoid including harness header */
+struct __test_metadata;
+
+/* Match the fixture definition from coredump_test.h */
+struct _fixture_coredump_data {
+	char original_core_pattern[256];
+	pid_t pid_coredump_server;
+	int fd_tmpfs_detached;
+};
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+#define NUM_THREAD_SPAWN 128
+
+void *do_nothing(void *arg)
+{
+	(void)arg;
+	while (1)
+		pause();
+
+	return NULL;
+}
+
+void crashing_child(void)
+{
+	pthread_t thread;
+	int i;
+
+	for (i = 0; i < NUM_THREAD_SPAWN; ++i)
+		pthread_create(&thread, NULL, do_nothing, NULL);
+
+	/* crash on purpose */
+	i = *(int *)NULL;
+}
+
+int create_detached_tmpfs(void)
+{
+	int fd_context, fd_tmpfs;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	if (fd_context < 0)
+		return -1;
+
+	if (sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0) < 0)
+		return -1;
+
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	close(fd_context);
+	return fd_tmpfs;
+}
+
+int create_and_listen_unix_socket(const char *path)
+{
+	struct sockaddr_un addr = {
+		.sun_family = AF_UNIX,
+	};
+	assert(strlen(path) < sizeof(addr.sun_path) - 1);
+	strncpy(addr.sun_path, path, sizeof(addr.sun_path) - 1);
+	size_t addr_len =
+		offsetof(struct sockaddr_un, sun_path) + strlen(path) + 1;
+	int fd, ret;
+
+	fd = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	if (fd < 0)
+		goto out;
+
+	ret = bind(fd, (const struct sockaddr *)&addr, addr_len);
+	if (ret < 0)
+		goto out;
+
+	ret = listen(fd, 128);
+	if (ret < 0)
+		goto out;
+
+	return fd;
+
+out:
+	if (fd >= 0)
+		close(fd);
+	return -1;
+}
+
+bool set_core_pattern(const char *pattern)
+{
+	int fd;
+	ssize_t ret;
+
+	fd = open("/proc/sys/kernel/core_pattern", O_WRONLY | O_CLOEXEC);
+	if (fd < 0)
+		return false;
+
+	ret = write(fd, pattern, strlen(pattern));
+	close(fd);
+	if (ret < 0)
+		return false;
+
+	fprintf(stderr, "Set core_pattern to '%s' | %zu == %zu\n", pattern, ret, strlen(pattern));
+	return ret == strlen(pattern);
+}
+
+int get_peer_pidfd(int fd)
+{
+	int fd_peer_pidfd;
+	socklen_t fd_peer_pidfd_len = sizeof(fd_peer_pidfd);
+	int ret = getsockopt(fd, SOL_SOCKET, SO_PEERPIDFD, &fd_peer_pidfd,
+			     &fd_peer_pidfd_len);
+	if (ret < 0) {
+		fprintf(stderr, "get_peer_pidfd: getsockopt(SO_PEERPIDFD) failed: %m\n");
+		return -1;
+	}
+	fprintf(stderr, "get_peer_pidfd: successfully retrieved pidfd %d\n", fd_peer_pidfd);
+	return fd_peer_pidfd;
+}
+
+bool get_pidfd_info(int fd_peer_pidfd, struct pidfd_info *info)
+{
+	int ret;
+	memset(info, 0, sizeof(*info));
+	info->mask = PIDFD_INFO_EXIT | PIDFD_INFO_COREDUMP | PIDFD_INFO_COREDUMP_SIGNAL;
+	ret = ioctl(fd_peer_pidfd, PIDFD_GET_INFO, info);
+	if (ret < 0) {
+		fprintf(stderr, "get_pidfd_info: ioctl(PIDFD_GET_INFO) failed: %m\n");
+		return false;
+	}
+	fprintf(stderr, "get_pidfd_info: mask=0x%llx, coredump_mask=0x%x, coredump_signal=%d\n",
+		(unsigned long long)info->mask, info->coredump_mask, info->coredump_signal);
+	return true;
+}
+
+/* Protocol helper functions */
+
+ssize_t recv_marker(int fd)
+{
+	enum coredump_mark mark = COREDUMP_MARK_REQACK;
+	ssize_t ret;
+
+	ret = recv(fd, &mark, sizeof(mark), MSG_WAITALL);
+	if (ret != sizeof(mark))
+		return -1;
+
+	switch (mark) {
+	case COREDUMP_MARK_REQACK:
+		fprintf(stderr, "Received marker: ReqAck\n");
+		return COREDUMP_MARK_REQACK;
+	case COREDUMP_MARK_MINSIZE:
+		fprintf(stderr, "Received marker: MinSize\n");
+		return COREDUMP_MARK_MINSIZE;
+	case COREDUMP_MARK_MAXSIZE:
+		fprintf(stderr, "Received marker: MaxSize\n");
+		return COREDUMP_MARK_MAXSIZE;
+	case COREDUMP_MARK_UNSUPPORTED:
+		fprintf(stderr, "Received marker: Unsupported\n");
+		return COREDUMP_MARK_UNSUPPORTED;
+	case COREDUMP_MARK_CONFLICTING:
+		fprintf(stderr, "Received marker: Conflicting\n");
+		return COREDUMP_MARK_CONFLICTING;
+	default:
+		fprintf(stderr, "Received unknown marker: %u\n", mark);
+		break;
+	}
+	return -1;
+}
+
+bool read_marker(int fd, enum coredump_mark mark)
+{
+	ssize_t ret;
+
+	ret = recv_marker(fd);
+	if (ret < 0)
+		return false;
+	return ret == mark;
+}
+
+bool read_coredump_req(int fd, struct coredump_req *req)
+{
+	ssize_t ret;
+	size_t field_size, user_size, ack_size, kernel_size, remaining_size;
+
+	memset(req, 0, sizeof(*req));
+	field_size = sizeof(req->size);
+
+	/* Peek the size of the coredump request. */
+	ret = recv(fd, req, field_size, MSG_PEEK | MSG_WAITALL);
+	if (ret != field_size) {
+		fprintf(stderr, "read_coredump_req: peek failed (got %zd, expected %zu): %m\n",
+			ret, field_size);
+		return false;
+	}
+	kernel_size = req->size;
+
+	if (kernel_size < COREDUMP_ACK_SIZE_VER0) {
+		fprintf(stderr, "read_coredump_req: kernel_size %zu < min %d\n",
+			kernel_size, COREDUMP_ACK_SIZE_VER0);
+		return false;
+	}
+	if (kernel_size >= PAGE_SIZE) {
+		fprintf(stderr, "read_coredump_req: kernel_size %zu >= PAGE_SIZE %d\n",
+			kernel_size, PAGE_SIZE);
+		return false;
+	}
+
+	/* Use the minimum of user and kernel size to read the full request. */
+	user_size = sizeof(struct coredump_req);
+	ack_size = user_size < kernel_size ? user_size : kernel_size;
+	ret = recv(fd, req, ack_size, MSG_WAITALL);
+	if (ret != ack_size)
+		return false;
+
+	fprintf(stderr, "Read coredump request with size %u and mask 0x%llx\n",
+		req->size, (unsigned long long)req->mask);
+
+	if (user_size > kernel_size)
+		remaining_size = user_size - kernel_size;
+	else
+		remaining_size = kernel_size - user_size;
+
+	if (PAGE_SIZE <= remaining_size)
+		return false;
+
+	/*
+	 * Discard any additional data if the kernel's request was larger than
+	 * what we knew about or cared about.
+	 */
+	if (remaining_size) {
+		char buffer[PAGE_SIZE];
+
+		ret = recv(fd, buffer, sizeof(buffer), MSG_WAITALL);
+		if (ret != remaining_size)
+			return false;
+		fprintf(stderr, "Discarded %zu bytes of data after coredump request\n", remaining_size);
+	}
+
+	return true;
+}
+
+bool send_coredump_ack(int fd, const struct coredump_req *req,
+		       __u64 mask, size_t size_ack)
+{
+	ssize_t ret;
+	/*
+	 * Wrap struct coredump_ack in a larger struct so we can
+	 * simulate sending to much data to the kernel.
+	 */
+	struct large_ack_for_size_testing {
+		struct coredump_ack ack;
+		char buffer[PAGE_SIZE];
+	} large_ack = {};
+
+	if (!size_ack)
+		size_ack = sizeof(struct coredump_ack) < req->size_ack ?
+				   sizeof(struct coredump_ack) :
+				   req->size_ack;
+	large_ack.ack.mask = mask;
+	large_ack.ack.size = size_ack;
+	ret = send(fd, &large_ack, size_ack, MSG_NOSIGNAL);
+	if (ret != size_ack)
+		return false;
+
+	fprintf(stderr, "Sent coredump ack with size %zu and mask 0x%llx\n",
+		size_ack, (unsigned long long)mask);
+	return true;
+}
+
+bool check_coredump_req(const struct coredump_req *req, size_t min_size,
+			__u64 required_mask)
+{
+	if (req->size < min_size)
+		return false;
+	if ((req->mask & required_mask) != required_mask)
+		return false;
+	if (req->mask & ~required_mask)
+		return false;
+	return true;
+}
+
+int open_coredump_tmpfile(int fd_tmpfs_detached)
+{
+	return openat(fd_tmpfs_detached, ".", O_TMPFILE | O_RDWR | O_EXCL, 0600);
+}
+
+void process_coredump_worker(int fd_coredump, int fd_peer_pidfd, int fd_core_file)
+{
+	int epfd = -1;
+	int exit_code = EXIT_FAILURE;
+	struct epoll_event ev;
+	int flags;
+
+	/* Set socket to non-blocking mode for edge-triggered epoll */
+	flags = fcntl(fd_coredump, F_GETFL, 0);
+	if (flags < 0) {
+		fprintf(stderr, "Worker: fcntl(F_GETFL) failed: %m\n");
+		goto out;
+	}
+	if (fcntl(fd_coredump, F_SETFL, flags | O_NONBLOCK) < 0) {
+		fprintf(stderr, "Worker: fcntl(F_SETFL, O_NONBLOCK) failed: %m\n");
+		goto out;
+	}
+
+	epfd = epoll_create1(0);
+	if (epfd < 0) {
+		fprintf(stderr, "Worker: epoll_create1() failed: %m\n");
+		goto out;
+	}
+
+	ev.events = EPOLLIN | EPOLLRDHUP | EPOLLET;
+	ev.data.fd = fd_coredump;
+	if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd_coredump, &ev) < 0) {
+		fprintf(stderr, "Worker: epoll_ctl(EPOLL_CTL_ADD) failed: %m\n");
+		goto out;
+	}
+
+	for (;;) {
+		struct epoll_event events[1];
+		int n = epoll_wait(epfd, events, 1, -1);
+		if (n < 0) {
+			fprintf(stderr, "Worker: epoll_wait() failed: %m\n");
+			break;
+		}
+
+		if (events[0].events & (EPOLLIN | EPOLLRDHUP)) {
+			for (;;) {
+				char buffer[4096];
+				ssize_t bytes_read = read(fd_coredump, buffer, sizeof(buffer));
+				if (bytes_read < 0) {
+					if (errno == EAGAIN || errno == EWOULDBLOCK)
+						break;
+					fprintf(stderr, "Worker: read() failed: %m\n");
+					goto out;
+				}
+				if (bytes_read == 0)
+					goto done;
+				ssize_t bytes_write = write(fd_core_file, buffer, bytes_read);
+				if (bytes_write != bytes_read) {
+					if (bytes_write < 0 && errno == ENOSPC)
+						continue;
+					fprintf(stderr, "Worker: write() failed (read=%zd, write=%zd): %m\n",
+						bytes_read, bytes_write);
+					goto out;
+				}
+			}
+		}
+	}
+
+done:
+	exit_code = EXIT_SUCCESS;
+	fprintf(stderr, "Worker: completed successfully\n");
+out:
+	if (epfd >= 0)
+		close(epfd);
+	if (fd_core_file >= 0)
+		close(fd_core_file);
+	if (fd_peer_pidfd >= 0)
+		close(fd_peer_pidfd);
+	if (fd_coredump >= 0)
+		close(fd_coredump);
+	_exit(exit_code);
+}
diff --git a/tools/testing/selftests/coredump/stackdump b/tools/testing/selftests/coredump/stackdump
new file mode 100755
index 000000000000..96714ce42d12
--- /dev/null
+++ b/tools/testing/selftests/coredump/stackdump
@@ -0,0 +1,14 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+CRASH_PROGRAM_ID=$1
+STACKDUMP_FILE=$2
+
+TMP=$(mktemp)
+
+for t in /proc/$CRASH_PROGRAM_ID/task/*; do
+	tid=$(basename $t)
+	cat /proc/$tid/stat | awk '{print $29}' >> $TMP
+done
+
+mv $TMP $STACKDUMP_FILE
diff --git a/tools/testing/selftests/coredump/stackdump_test.c b/tools/testing/selftests/coredump/stackdump_test.c
new file mode 100644
index 000000000000..1ec88937a1c2
--- /dev/null
+++ b/tools/testing/selftests/coredump/stackdump_test.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <limits.h>
+#include <linux/coredump.h>
+#include <linux/fs.h>
+#include <linux/limits.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <poll.h>
+#include <sys/epoll.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+#include "../filesystems/wrappers.h"
+#include "../pidfd/pidfd.h"
+
+#include "coredump_test.h"
+
+#define STACKDUMP_FILE "stack_values"
+#define STACKDUMP_SCRIPT "stackdump"
+
+#ifndef PAGE_SIZE
+#define PAGE_SIZE 4096
+#endif
+
+FIXTURE_SETUP(coredump)
+{
+	FILE *file;
+	int ret;
+
+	self->pid_coredump_server = -ESRCH;
+	self->fd_tmpfs_detached = -1;
+	file = fopen("/proc/sys/kernel/core_pattern", "r");
+	ASSERT_NE(NULL, file);
+
+	ret = fread(self->original_core_pattern, 1, sizeof(self->original_core_pattern), file);
+	ASSERT_TRUE(ret || feof(file));
+	ASSERT_LT(ret, sizeof(self->original_core_pattern));
+
+	self->original_core_pattern[ret] = '\0';
+	self->fd_tmpfs_detached = create_detached_tmpfs();
+	ASSERT_GE(self->fd_tmpfs_detached, 0);
+
+	ret = fclose(file);
+	ASSERT_EQ(0, ret);
+}
+
+FIXTURE_TEARDOWN(coredump)
+{
+	const char *reason;
+	FILE *file;
+	int ret, status;
+
+	unlink(STACKDUMP_FILE);
+
+	if (self->pid_coredump_server > 0) {
+		kill(self->pid_coredump_server, SIGTERM);
+		waitpid(self->pid_coredump_server, &status, 0);
+	}
+	unlink("/tmp/coredump.file");
+	unlink("/tmp/coredump.socket");
+
+	file = fopen("/proc/sys/kernel/core_pattern", "w");
+	if (!file) {
+		reason = "Unable to open core_pattern";
+		goto fail;
+	}
+
+	ret = fprintf(file, "%s", self->original_core_pattern);
+	if (ret < 0) {
+		reason = "Unable to write to core_pattern";
+		goto fail;
+	}
+
+	ret = fclose(file);
+	if (ret) {
+		reason = "Unable to close core_pattern";
+		goto fail;
+	}
+
+	if (self->fd_tmpfs_detached >= 0) {
+		ret = close(self->fd_tmpfs_detached);
+		if (ret < 0) {
+			reason = "Unable to close detached tmpfs";
+			goto fail;
+		}
+		self->fd_tmpfs_detached = -1;
+	}
+
+	return;
+fail:
+	/* This should never happen */
+	fprintf(stderr, "Failed to cleanup stackdump test: %s\n", reason);
+}
+
+TEST_F_TIMEOUT(coredump, stackdump, 120)
+{
+	unsigned long long stack;
+	char *test_dir, *line;
+	size_t line_length;
+	char buf[PAGE_SIZE];
+	int ret, i, status;
+	FILE *file;
+	pid_t pid;
+
+	/*
+	 * Step 1: Setup core_pattern so that the stackdump script is executed when the child
+	 * process crashes
+	 */
+	ret = readlink("/proc/self/exe", buf, sizeof(buf));
+	ASSERT_NE(-1, ret);
+	ASSERT_LT(ret, sizeof(buf));
+	buf[ret] = '\0';
+
+	test_dir = dirname(buf);
+
+	file = fopen("/proc/sys/kernel/core_pattern", "w");
+	ASSERT_NE(NULL, file);
+
+	ret = fprintf(file, "|%1$s/%2$s %%P %1$s/%3$s", test_dir, STACKDUMP_SCRIPT, STACKDUMP_FILE);
+	ASSERT_LT(0, ret);
+
+	ret = fclose(file);
+	ASSERT_EQ(0, ret);
+
+	/* Step 2: Create a process who spawns some threads then crashes */
+	pid = fork();
+	ASSERT_TRUE(pid >= 0);
+	if (pid == 0)
+		crashing_child();
+
+	/*
+	 * Step 3: Wait for the stackdump script to write the stack pointers to the stackdump file
+	 */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_TRUE(WCOREDUMP(status));
+
+	for (i = 0; i < 10; ++i) {
+		file = fopen(STACKDUMP_FILE, "r");
+		if (file)
+			break;
+		sleep(1);
+	}
+	ASSERT_NE(file, NULL);
+
+	/* Step 4: Make sure all stack pointer values are non-zero */
+	line = NULL;
+	for (i = 0; -1 != getline(&line, &line_length, file); ++i) {
+		stack = strtoull(line, NULL, 10);
+		ASSERT_NE(stack, 0);
+	}
+	free(line);
+
+	ASSERT_EQ(i, 1 + NUM_THREAD_SPAWN);
+
+	fclose(file);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/cpu-hotplug/Makefile b/tools/testing/selftests/cpu-hotplug/Makefile
index fe1f99101c5d..8b66c4738344 100644
--- a/tools/testing/selftests/cpu-hotplug/Makefile
+++ b/tools/testing/selftests/cpu-hotplug/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 TEST_PROGS := cpu-on-off-test.sh
@@ -5,6 +6,6 @@ TEST_PROGS := cpu-on-off-test.sh
 include ../lib.mk
 
 run_full_test:
-	@/bin/bash ./cpu-on-off-test.sh -a || echo "cpu-hotplug selftests: [FAIL]"
+	@/bin/bash ./cpu-on-off-test.sh -a && echo "cpu-hotplug selftests: [PASS]" || echo "cpu-hotplug selftests: [FAIL]"
 
 clean:
diff --git a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
index 98b1d6565f2c..6232a46ca6e1 100755
--- a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
+++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
@@ -1,6 +1,10 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 SYSFS=
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+retval=0
 
 prerequisite()
 {
@@ -8,7 +12,7 @@ prerequisite()
 
 	if [ $UID != 0 ]; then
 		echo $msg must be run as root >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	taskset -p 01 $$
@@ -17,17 +21,27 @@ prerequisite()
 
 	if [ ! -d "$SYSFS" ]; then
 		echo $msg sysfs is not mounted >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	if ! ls $SYSFS/devices/system/cpu/cpu* > /dev/null 2>&1; then
 		echo $msg cpu hotplug is not supported >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	echo "CPU online/offline summary:"
 	online_cpus=`cat $SYSFS/devices/system/cpu/online`
 	online_max=${online_cpus##*-}
+
+	if [[ "$online_cpus" = "$online_max" ]]; then
+		echo "$msg: since there is only one cpu: $online_cpus"
+		exit $ksft_skip
+	fi
+
+	present_cpus=`cat $SYSFS/devices/system/cpu/present`
+	present_max=${present_cpus##*-}
+	echo "present_cpus = $present_cpus present_max = $present_max"
+
 	echo -e "\t Cpus in online state: $online_cpus"
 
 	offline_cpus=`cat $SYSFS/devices/system/cpu/offline`
@@ -53,7 +67,7 @@ hotpluggable_cpus()
 	done
 }
 
-hotplaggable_offline_cpus()
+hotpluggable_offline_cpus()
 {
 	hotpluggable_cpus 0
 }
@@ -89,8 +103,10 @@ online_cpu_expect_success()
 
 	if ! online_cpu $cpu; then
 		echo $FUNCNAME $cpu: unexpected fail >&2
+		retval=1
 	elif ! cpu_is_online $cpu; then
 		echo $FUNCNAME $cpu: unexpected offline >&2
+		retval=1
 	fi
 }
 
@@ -100,8 +116,10 @@ online_cpu_expect_fail()
 
 	if online_cpu $cpu 2> /dev/null; then
 		echo $FUNCNAME $cpu: unexpected success >&2
+		retval=1
 	elif ! cpu_is_offline $cpu; then
 		echo $FUNCNAME $cpu: unexpected online >&2
+		retval=1
 	fi
 }
 
@@ -111,8 +129,10 @@ offline_cpu_expect_success()
 
 	if ! offline_cpu $cpu; then
 		echo $FUNCNAME $cpu: unexpected fail >&2
+		retval=1
 	elif ! cpu_is_offline $cpu; then
 		echo $FUNCNAME $cpu: unexpected offline >&2
+		retval=1
 	fi
 }
 
@@ -122,44 +142,54 @@ offline_cpu_expect_fail()
 
 	if offline_cpu $cpu 2> /dev/null; then
 		echo $FUNCNAME $cpu: unexpected success >&2
+		retval=1
 	elif ! cpu_is_online $cpu; then
 		echo $FUNCNAME $cpu: unexpected offline >&2
+		retval=1
 	fi
 }
 
-error=-12
+online_all_hot_pluggable_cpus()
+{
+	for cpu in `hotpluggable_offline_cpus`; do
+		online_cpu_expect_success $cpu
+	done
+}
+
+offline_all_hot_pluggable_cpus()
+{
+	local reserve_cpu=$online_max
+	for cpu in `hotpluggable_online_cpus`; do
+		# Reserve one cpu oneline at least.
+		if [ $cpu -eq $reserve_cpu ];then
+			continue
+		fi
+		offline_cpu_expect_success $cpu
+	done
+}
+
 allcpus=0
-priority=0
 online_cpus=0
 online_max=0
 offline_cpus=0
 offline_max=0
+present_cpus=0
+present_max=0
 
-while getopts e:ahp: opt; do
+while getopts ah opt; do
 	case $opt in
-	e)
-		error=$OPTARG
-		;;
 	a)
 		allcpus=1
 		;;
 	h)
-		echo "Usage $0 [ -a ] [ -e errno ] [ -p notifier-priority ]"
+		echo "Usage $0 [ -a ]"
 		echo -e "\t default offline one cpu"
 		echo -e "\t run with -a option to offline all cpus"
 		exit
 		;;
-	p)
-		priority=$OPTARG
-		;;
 	esac
 done
 
-if ! [ "$error" -ge -4095 -a "$error" -lt 0 ]; then
-	echo "error code must be -4095 <= errno < 0" >&2
-	exit 1
-fi
-
 prerequisite
 
 #
@@ -173,11 +203,12 @@ if [ $allcpus -eq 0 ]; then
 	online_cpu_expect_success $online_max
 
 	if [[ $offline_cpus -gt 0 ]]; then
-		echo -e "\t offline to online to offline: cpu $offline_max"
-		online_cpu_expect_success $offline_max
-		offline_cpu_expect_success $offline_max
+		echo -e "\t online to offline to online: cpu $present_max"
+		online_cpu_expect_success $present_max
+		offline_cpu_expect_success $present_max
+		online_cpu $present_max
 	fi
-	exit 0
+	exit $retval
 else
 	echo "Full scope test: all hotplug cpus"
 	echo -e "\t online all offline cpus"
@@ -185,85 +216,10 @@ else
 	echo -e "\t online all offline cpus"
 fi
 
-#
-# Online all hot-pluggable CPUs
-#
-for cpu in `hotplaggable_offline_cpus`; do
-	online_cpu_expect_success $cpu
-done
-
-#
-# Offline all hot-pluggable CPUs
-#
-for cpu in `hotpluggable_online_cpus`; do
-	offline_cpu_expect_success $cpu
-done
+online_all_hot_pluggable_cpus
 
-#
-# Online all hot-pluggable CPUs again
-#
-for cpu in `hotplaggable_offline_cpus`; do
-	online_cpu_expect_success $cpu
-done
+offline_all_hot_pluggable_cpus
 
-#
-# Test with cpu notifier error injection
-#
-
-DEBUGFS=`mount -t debugfs | head -1 | awk '{ print $3 }'`
-NOTIFIER_ERR_INJECT_DIR=$DEBUGFS/notifier-error-inject/cpu
-
-prerequisite_extra()
-{
-	msg="skip extra tests:"
-
-	/sbin/modprobe -q -r cpu-notifier-error-inject
-	/sbin/modprobe -q cpu-notifier-error-inject priority=$priority
-
-	if [ ! -d "$DEBUGFS" ]; then
-		echo $msg debugfs is not mounted >&2
-		exit 0
-	fi
-
-	if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
-		echo $msg cpu-notifier-error-inject module is not available >&2
-		exit 0
-	fi
-}
-
-prerequisite_extra
-
-#
-# Offline all hot-pluggable CPUs
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-for cpu in `hotpluggable_online_cpus`; do
-	offline_cpu_expect_success $cpu
-done
-
-#
-# Test CPU hot-add error handling (offline => online)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
-for cpu in `hotplaggable_offline_cpus`; do
-	online_cpu_expect_fail $cpu
-done
-
-#
-# Online all hot-pluggable CPUs
-#
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_UP_PREPARE/error
-for cpu in `hotplaggable_offline_cpus`; do
-	online_cpu_expect_success $cpu
-done
-
-#
-# Test CPU hot-remove error handling (online => offline)
-#
-echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-for cpu in `hotpluggable_online_cpus`; do
-	offline_cpu_expect_fail $cpu
-done
+online_all_hot_pluggable_cpus
 
-echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/CPU_DOWN_PREPARE/error
-/sbin/modprobe -q -r cpu-notifier-error-inject
+exit $retval
diff --git a/tools/testing/selftests/cpufreq/.gitignore b/tools/testing/selftests/cpufreq/.gitignore
new file mode 100644
index 000000000000..67604e91e068
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+cpufreq_selftest.*
diff --git a/tools/testing/selftests/cpufreq/Makefile b/tools/testing/selftests/cpufreq/Makefile
new file mode 100644
index 000000000000..9b2ccb10b0cf
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+all:
+
+TEST_PROGS := main.sh
+TEST_FILES := cpu.sh cpufreq.sh governor.sh module.sh special-tests.sh
+EXTRA_CLEAN := cpufreq_selftest.dmesg_cpufreq.txt cpufreq_selftest.dmesg_full.txt cpufreq_selftest.txt
+
+include ../lib.mk
+
+clean:
diff --git a/tools/testing/selftests/cpufreq/config b/tools/testing/selftests/cpufreq/config
new file mode 100644
index 000000000000..ce5068f5a6a2
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/config
@@ -0,0 +1,7 @@
+CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y
diff --git a/tools/testing/selftests/cpufreq/cpu.sh b/tools/testing/selftests/cpufreq/cpu.sh
new file mode 100755
index 000000000000..39fdcdfb8e97
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/cpu.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# CPU helpers
+
+# protect against multiple inclusion
+if [ $FILE_CPU ]; then
+	return 0
+else
+	FILE_CPU=DONE
+fi
+
+source cpufreq.sh
+
+for_each_cpu()
+{
+	cpus=$(ls $CPUROOT | grep "cpu[0-9].*")
+	for cpu in $cpus; do
+		$@ $cpu
+	done
+}
+
+for_each_non_boot_cpu()
+{
+	cpus=$(ls $CPUROOT | grep "cpu[1-9].*")
+	for cpu in $cpus; do
+		$@ $cpu
+	done
+}
+
+#$1: cpu
+offline_cpu()
+{
+	printf "Offline $1\n"
+	echo 0 > $CPUROOT/$1/online
+}
+
+#$1: cpu
+online_cpu()
+{
+	printf "Online $1\n"
+	echo 1 > $CPUROOT/$1/online
+}
+
+#$1: cpu
+reboot_cpu()
+{
+	offline_cpu $1
+	online_cpu $1
+}
+
+# Reboot CPUs
+# param: number of times we want to run the loop
+reboot_cpus()
+{
+	printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"
+
+	for i in `seq 1 $1`; do
+		for_each_non_boot_cpu offline_cpu
+		for_each_non_boot_cpu online_cpu
+		printf "\n"
+	done
+
+	printf "\n%s\n\n" "------------------------------------------------"
+}
+
+# Prints warning for all CPUs with missing cpufreq directory
+print_unmanaged_cpus()
+{
+	for_each_cpu cpu_should_have_cpufreq_directory
+}
+
+# Counts CPUs with cpufreq directories
+count_cpufreq_managed_cpus()
+{
+	count=0;
+
+	for cpu in `ls $CPUROOT | grep "cpu[0-9].*"`; do
+		if [ -d $CPUROOT/$cpu/cpufreq ]; then
+			let count=count+1;
+		fi
+	done
+
+	echo $count;
+}
diff --git a/tools/testing/selftests/cpufreq/cpufreq.sh b/tools/testing/selftests/cpufreq/cpufreq.sh
new file mode 100755
index 000000000000..9927b654fb8f
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/cpufreq.sh
@@ -0,0 +1,264 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# protect against multiple inclusion
+if [ $FILE_CPUFREQ ]; then
+	return 0
+else
+	FILE_CPUFREQ=DONE
+fi
+
+source cpu.sh
+
+
+# $1: cpu
+cpu_should_have_cpufreq_directory()
+{
+	if [ ! -d $CPUROOT/$1/cpufreq ]; then
+		printf "Warning: No cpufreq directory present for $1\n"
+	fi
+}
+
+cpu_should_not_have_cpufreq_directory()
+{
+	if [ -d $CPUROOT/$1/cpufreq ]; then
+		printf "Warning: cpufreq directory present for $1\n"
+	fi
+}
+
+for_each_policy()
+{
+	policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+	for policy in $policies; do
+		$@ $policy
+	done
+}
+
+for_each_policy_concurrent()
+{
+	policies=$(ls $CPUFREQROOT| grep "policy[0-9].*")
+	for policy in $policies; do
+		$@ $policy &
+	done
+}
+
+# $1: Path
+read_cpufreq_files_in_dir()
+{
+	local files=`ls $1`
+
+	printf "Printing directory: $1\n\n"
+
+	for file in $files; do
+		if [ -f $1/$file ]; then
+			printf "$file:"
+			#file is readable ?
+			local rfile=$(ls -l $1/$file | awk '$1 ~ /^.*r.*/ { print $NF; }')
+
+			if [ ! -z $rfile ]; then
+				cat $1/$file
+			else
+				printf "$file is not readable\n"
+			fi
+		else
+			printf "\n"
+			read_cpufreq_files_in_dir "$1/$file"
+		fi
+	done
+	printf "\n"
+}
+
+
+read_all_cpufreq_files()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	read_cpufreq_files_in_dir $CPUFREQROOT
+
+	printf "%s\n\n" "------------------------------------------------"
+}
+
+
+# UPDATE CPUFREQ FILES
+
+# $1: directory path
+update_cpufreq_files_in_dir()
+{
+	local files=`ls $1`
+
+	printf "Updating directory: $1\n\n"
+
+	for file in $files; do
+		if [ -f $1/$file ]; then
+			# file is readable and writable ?
+			local rwfile=$(ls -l $1/$file | awk '$1 ~ /^.*rw.*/ { print $NF; }')
+
+			if [ ! -z $rwfile ]; then
+				# scaling_setspeed is a special file and we
+				# should skip updating it
+				if [ $file != "scaling_setspeed" ]; then
+					local val=$(cat $1/$file)
+					printf "Writing $val to: $file\n"
+					echo $val > $1/$file
+				fi
+			fi
+		else
+			printf "\n"
+			update_cpufreq_files_in_dir "$1/$file"
+		fi
+	done
+
+	printf "\n"
+}
+
+# Update all writable files with their existing values
+update_all_cpufreq_files()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	update_cpufreq_files_in_dir $CPUFREQROOT
+
+	printf "%s\n\n" "------------------------------------------------"
+}
+
+
+# CHANGE CPU FREQUENCIES
+
+# $1: policy
+find_current_freq()
+{
+	cat $CPUFREQROOT/$1/scaling_cur_freq
+}
+
+# $1: policy
+# $2: frequency
+set_cpu_frequency()
+{
+	printf "Change frequency for $1 to $2\n"
+	echo $2 > $CPUFREQROOT/$1/scaling_setspeed
+}
+
+# $1: policy
+test_all_frequencies()
+{
+	local filepath="$CPUFREQROOT/$1"
+
+	backup_governor $1
+
+	local found=$(switch_governor $1 "userspace")
+	if [ $found = 1 ]; then
+		printf "${FUNCNAME[0]}: userspace governor not available for: $1\n"
+		return;
+	fi
+
+	printf "Switched governor for $1 to userspace\n\n"
+
+	local freqs=$(cat $filepath/scaling_available_frequencies)
+	printf "Available frequencies for $1: $freqs\n\n"
+
+	# Set all frequencies one-by-one
+	for freq in $freqs; do
+		set_cpu_frequency $1 $freq
+	done
+
+	printf "\n"
+
+	restore_governor $1
+}
+
+# $1: loop count
+shuffle_frequency_for_all_cpus()
+{
+	printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"
+
+	for i in `seq 1 $1`; do
+		for_each_policy test_all_frequencies
+	done
+	printf "\n%s\n\n" "------------------------------------------------"
+}
+
+# Basic cpufreq tests
+cpufreq_basic_tests()
+{
+	printf "*** RUNNING CPUFREQ SANITY TESTS ***\n"
+	printf "====================================\n\n"
+
+	count=$(count_cpufreq_managed_cpus)
+	if [ $count = 0 ]; then
+		ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting\n"
+	else
+		printf "CPUFreq manages: $count CPUs\n\n"
+	fi
+
+	# Detect & print which CPUs are not managed by cpufreq
+	print_unmanaged_cpus
+
+	# read/update all cpufreq files
+	read_all_cpufreq_files
+	update_all_cpufreq_files
+
+	# hotplug cpus
+	reboot_cpus 5
+
+	# Test all frequencies
+	shuffle_frequency_for_all_cpus 2
+
+	# Test all governors
+	shuffle_governors_for_all_cpus 1
+}
+
+# Suspend/resume
+# $1: "suspend" or "hibernate", $2: loop count
+do_suspend()
+{
+	printf "** Test: Running ${FUNCNAME[0]}: Trying $1 for $2 loops **\n\n"
+
+	# Is the directory available
+	if [ ! -d $SYSFS/power/ -o ! -f $SYSFS/power/state ]; then
+		printf "$SYSFS/power/state not available\n"
+		return 1
+	fi
+
+	if [ $1 = "suspend" ]; then
+		filename="mem"
+	elif [ $1 = "hibernate" ]; then
+		filename="disk"
+	else
+		printf "$1 is not a valid option\n"
+		return 1
+	fi
+
+	if [ -n $filename ]; then
+		present=$(cat $SYSFS/power/state | grep $filename)
+
+		if [ -z "$present" ]; then
+			printf "Tried to $1 but $filename isn't present in $SYSFS/power/state\n"
+			return 1;
+		fi
+
+		for i in `seq 1 $2`; do
+			printf "Starting $1\n"
+
+			if [ "$3" = "rtc" ]; then
+				if ! command -v rtcwake &> /dev/null; then
+					printf "rtcwake could not be found, please install it.\n"
+					return 1
+				fi
+
+				rtcwake -m $filename -s 15
+
+				if [ $? -ne 0 ]; then
+					printf "Failed to suspend using RTC wake alarm\n"
+					return 1
+				fi
+			else
+				echo $filename > $SYSFS/power/state
+			fi
+
+			printf "Came out of $1\n"
+
+			printf "Do basic tests after finishing $1 to verify cpufreq state\n\n"
+			cpufreq_basic_tests
+		done
+	fi
+}
diff --git a/tools/testing/selftests/cpufreq/governor.sh b/tools/testing/selftests/cpufreq/governor.sh
new file mode 100755
index 000000000000..fe37df79c087
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/governor.sh
@@ -0,0 +1,154 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test governors
+
+# protect against multiple inclusion
+if [ $FILE_GOVERNOR ]; then
+	return 0
+else
+	FILE_GOVERNOR=DONE
+fi
+
+source cpu.sh
+source cpufreq.sh
+
+CUR_GOV=
+CUR_FREQ=
+
+# Find governor's directory path
+# $1: policy, $2: governor
+find_gov_directory()
+{
+	if [ -d $CPUFREQROOT/$2 ]; then
+		printf "$CPUFREQROOT/$2\n"
+	elif [ -d $CPUFREQROOT/$1/$2 ]; then
+		printf "$CPUFREQROOT/$1/$2\n"
+	else
+		printf "INVALID\n"
+	fi
+}
+
+# $1: policy
+find_current_governor()
+{
+	cat $CPUFREQROOT/$1/scaling_governor
+}
+
+# $1: policy
+backup_governor()
+{
+	CUR_GOV=$(find_current_governor $1)
+
+	printf "Governor backup done for $1: $CUR_GOV\n"
+
+	if [ $CUR_GOV == "userspace" ]; then
+		CUR_FREQ=$(find_current_freq $1)
+		printf "Governor frequency backup done for $1: $CUR_FREQ\n"
+	fi
+
+	printf "\n"
+}
+
+# $1: policy
+restore_governor()
+{
+	__switch_governor $1 $CUR_GOV
+
+	printf "Governor restored for $1 to $CUR_GOV\n"
+
+	if [ $CUR_GOV == "userspace" ]; then
+		set_cpu_frequency $1 $CUR_FREQ
+		printf "Governor frequency restored for $1: $CUR_FREQ\n"
+	fi
+
+	printf "\n"
+}
+
+# param:
+# $1: policy, $2: governor
+__switch_governor()
+{
+	echo $2 > $CPUFREQROOT/$1/scaling_governor
+}
+
+# param:
+# $1: cpu, $2: governor
+__switch_governor_for_cpu()
+{
+	echo $2 > $CPUROOT/$1/cpufreq/scaling_governor
+}
+
+# SWITCH GOVERNORS
+
+# $1: cpu, $2: governor
+switch_governor()
+{
+	local filepath=$CPUFREQROOT/$1/scaling_available_governors
+
+	# check if governor is available
+	local found=$(cat $filepath | grep $2 | wc -l)
+	if [ $found = 0 ]; then
+		echo 1;
+		return
+	fi
+
+	__switch_governor $1 $2
+	echo 0;
+}
+
+# $1: policy, $2: governor
+switch_show_governor()
+{
+	cur_gov=find_current_governor
+	if [ $cur_gov == "userspace" ]; then
+		cur_freq=find_current_freq
+	fi
+
+	# switch governor
+	__switch_governor $1 $2
+
+	printf "\nSwitched governor for $1 to $2\n\n"
+
+	if [ $2 == "userspace" -o $2 == "powersave" -o $2 == "performance" ]; then
+		printf "No files to read for $2 governor\n\n"
+		return
+	fi
+
+	# show governor files
+	local govpath=$(find_gov_directory $1 $2)
+	read_cpufreq_files_in_dir $govpath
+}
+
+# $1: function to be called, $2: policy
+call_for_each_governor()
+{
+	local filepath=$CPUFREQROOT/$2/scaling_available_governors
+
+	# Exit if cpu isn't managed by cpufreq core
+	if [ ! -f $filepath ]; then
+		return;
+	fi
+
+	backup_governor $2
+
+	local governors=$(cat $filepath)
+	printf "Available governors for $2: $governors\n"
+
+	for governor in $governors; do
+		$1 $2 $governor
+	done
+
+	restore_governor $2
+}
+
+# $1: loop count
+shuffle_governors_for_all_cpus()
+{
+	printf "** Test: Running ${FUNCNAME[0]} for $1 loops **\n\n"
+
+	for i in `seq 1 $1`; do
+		for_each_policy call_for_each_governor switch_show_governor
+	done
+	printf "%s\n\n" "------------------------------------------------"
+}
diff --git a/tools/testing/selftests/cpufreq/main.sh b/tools/testing/selftests/cpufreq/main.sh
new file mode 100755
index 000000000000..f12ff7416e41
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/main.sh
@@ -0,0 +1,218 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source cpu.sh
+source cpufreq.sh
+source governor.sh
+source module.sh
+source special-tests.sh
+
+DIR="$(dirname $(readlink -f "$0"))"
+source "${DIR}"/../kselftest/ktap_helpers.sh
+
+FUNC=basic	# do basic tests by default
+OUTFILE=cpufreq_selftest
+SYSFS=
+CPUROOT=
+CPUFREQROOT=
+
+helpme()
+{
+	printf "Usage: $0 [-h] [-todg args]
+	[-h <help>]
+	[-o <output-file-for-dump>]
+	[-t <basic: Basic cpufreq testing
+	     suspend: suspend/resume,
+	     hibernate: hibernate/resume,
+	     suspend_rtc: suspend/resume back using the RTC wakeup alarm,
+	     hibernate_rtc: hibernate/resume back using the RTC wakeup alarm,
+	     modtest: test driver or governor modules. Only to be used with -d or -g options,
+	     sptest1: Simple governor switch to produce lockdep.
+	     sptest2: Concurrent governor switch to produce lockdep.
+	     sptest3: Governor races, shuffle between governors quickly.
+	     sptest4: CPU hotplugs with updates to cpufreq files.>]
+	[-d <driver's module name: only with \"-t modtest>\"]
+	[-g <governor's module name: only with \"-t modtest>\"]
+	\n"
+	exit "${KSFT_FAIL}"
+}
+
+prerequisite()
+{
+	msg="skip all tests:"
+
+	if [ $UID != 0 ]; then
+		ktap_skip_all "$msg must be run as root"
+		exit "${KSFT_SKIP}"
+	fi
+
+	taskset -p 01 $$
+
+	SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+	if [ ! -d "$SYSFS" ]; then
+		ktap_skip_all "$msg sysfs is not mounted"
+		exit "${KSFT_SKIP}"
+	fi
+
+	CPUROOT=$SYSFS/devices/system/cpu
+	CPUFREQROOT="$CPUROOT/cpufreq"
+
+	if ! ls $CPUROOT/cpu* > /dev/null 2>&1; then
+		ktap_skip_all "$msg cpus not available in sysfs"
+		exit "${KSFT_SKIP}"
+	fi
+
+	if ! ls $CPUROOT/cpufreq > /dev/null 2>&1; then
+		ktap_skip_all "$msg cpufreq directory not available in sysfs"
+		exit "${KSFT_SKIP}"
+	fi
+}
+
+parse_arguments()
+{
+	while getopts ht:o:d:g: arg
+	do
+		case $arg in
+			h) # --help
+				helpme
+				;;
+
+			t) # --func_type (Function to perform: basic, suspend, hibernate,
+			   # suspend_rtc, hibernate_rtc, modtest, sptest1/2/3/4 (default: basic))
+				FUNC=$OPTARG
+				;;
+
+			o) # --output-file (Output file to store dumps)
+				OUTFILE=$OPTARG
+				;;
+
+			d) # --driver-mod-name (Name of the driver module)
+				DRIVER_MOD=$OPTARG
+				;;
+
+			g) # --governor-mod-name (Name of the governor module)
+				GOVERNOR_MOD=$OPTARG
+				;;
+
+			\?)
+				helpme
+				;;
+		esac
+	done
+}
+
+do_test()
+{
+	# Check if CPUs are managed by cpufreq or not
+	count=$(count_cpufreq_managed_cpus)
+
+	if [ $count = 0 -a $FUNC != "modtest" ]; then
+		ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting"
+	fi
+
+	case "$FUNC" in
+		"basic")
+		cpufreq_basic_tests
+		;;
+
+		"suspend")
+		do_suspend "suspend" 1
+		;;
+
+		"hibernate")
+		do_suspend "hibernate" 1
+		;;
+
+		"suspend_rtc")
+                do_suspend "suspend" 1 rtc
+                ;;
+
+                "hibernate_rtc")
+                do_suspend "hibernate" 1 rtc
+                ;;
+
+		"modtest")
+		# Do we have modules in place?
+		if [ -z $DRIVER_MOD ] && [ -z $GOVERNOR_MOD ]; then
+			ktap_exit_fail_msg "No driver or governor module passed with -d or -g"
+		fi
+
+		if [ $DRIVER_MOD ]; then
+			if [ $GOVERNOR_MOD ]; then
+				module_test $DRIVER_MOD $GOVERNOR_MOD
+			else
+				module_driver_test $DRIVER_MOD
+			fi
+		else
+			if [ $count = 0 ]; then
+				ktap_exit_fail_msg "No cpu is managed by cpufreq core, exiting"
+			fi
+
+			module_governor_test $GOVERNOR_MOD
+		fi
+		;;
+
+		"sptest1")
+		simple_lockdep
+		;;
+
+		"sptest2")
+		concurrent_lockdep
+		;;
+
+		"sptest3")
+		governor_race
+		;;
+
+		"sptest4")
+		hotplug_with_updates
+		;;
+
+		*)
+		ktap_print_msg "Invalid [-f] function type"
+		helpme
+		;;
+	esac
+}
+
+# clear dumps
+# $1: file name
+clear_dumps()
+{
+	echo "" > $1.txt
+	echo "" > $1.dmesg_cpufreq.txt
+	echo "" > $1.dmesg_full.txt
+}
+
+# $1: output file name
+dmesg_dumps()
+{
+	dmesg | grep cpufreq >> $1.dmesg_cpufreq.txt
+
+	# We may need the full logs as well
+	dmesg >> $1.dmesg_full.txt
+}
+
+ktap_print_header
+
+# Parse arguments
+parse_arguments $@
+
+ktap_set_plan 1
+
+# Make sure all requirements are met
+prerequisite
+
+# Run requested functions
+clear_dumps $OUTFILE
+do_test | tee -a $OUTFILE.txt
+if [ "${PIPESTATUS[0]}" -ne 0 ]; then
+    exit ${PIPESTATUS[0]};
+fi
+dmesg_dumps $OUTFILE
+
+ktap_test_pass "Completed successfully"
+
+ktap_print_totals
+exit "${KSFT_PASS}"
diff --git a/tools/testing/selftests/cpufreq/module.sh b/tools/testing/selftests/cpufreq/module.sh
new file mode 100755
index 000000000000..7f2667e0ae2d
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/module.sh
@@ -0,0 +1,242 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Modules specific tests cases
+
+# protect against multiple inclusion
+if [ $FILE_MODULE ]; then
+	return 0
+else
+	FILE_MODULE=DONE
+fi
+
+source cpu.sh
+source cpufreq.sh
+source governor.sh
+
+# Check basic insmod/rmmod
+# $1: module
+test_basic_insmod_rmmod()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	printf "Inserting $1 module\n"
+	# insert module
+	insmod $1
+	if [ $? != 0 ]; then
+		ktap_exit_fail_msg "Insmod $1 failed\n"
+	fi
+
+	printf "Removing $1 module\n"
+	# remove module
+	rmmod $1
+	if [ $? != 0 ]; then
+		ktap_exit_fail_msg "rmmod $1 failed\n"
+	fi
+
+	printf "\n"
+}
+
+# Insert cpufreq driver module and perform basic tests
+# $1: cpufreq-driver module to insert
+# $2: If we want to play with CPUs (1) or not (0)
+module_driver_test_single()
+{
+	printf "** Test: Running ${FUNCNAME[0]} for driver $1 and cpus_hotplug=$2 **\n\n"
+
+	if [ $2 -eq 1 ]; then
+		# offline all non-boot CPUs
+		for_each_non_boot_cpu offline_cpu
+		printf "\n"
+	fi
+
+	# insert module
+	printf "Inserting $1 module\n\n"
+	insmod $1
+	if [ $? != 0 ]; then
+		printf "Insmod $1 failed\n"
+		return;
+	fi
+
+	if [ $2 -eq 1 ]; then
+		# online all non-boot CPUs
+		for_each_non_boot_cpu online_cpu
+		printf "\n"
+	fi
+
+	# run basic tests
+	cpufreq_basic_tests
+
+	# remove module
+	printf "Removing $1 module\n\n"
+	rmmod $1
+	if [ $? != 0 ]; then
+		printf "rmmod $1 failed\n"
+		return;
+	fi
+
+	# There shouldn't be any cpufreq directories now.
+	for_each_cpu cpu_should_not_have_cpufreq_directory
+	printf "\n"
+}
+
+# $1: cpufreq-driver module to insert
+module_driver_test()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	# check if module is present or not
+	ls $1 > /dev/null
+	if [ $? != 0 ]; then
+		printf "$1: not present in `pwd` folder\n"
+		return;
+	fi
+
+	# test basic module tests
+	test_basic_insmod_rmmod $1
+
+	# Do simple module test
+	module_driver_test_single $1 0
+
+	# Remove CPUs before inserting module and then bring them back
+	module_driver_test_single $1 1
+	printf "\n"
+}
+
+# find governor name based on governor module name
+# $1: governor module name
+find_gov_name()
+{
+	if [ $1 = "cpufreq_ondemand.ko" ]; then
+		printf "ondemand"
+	elif [ $1 = "cpufreq_conservative.ko" ]; then
+		printf "conservative"
+	elif [ $1 = "cpufreq_userspace.ko" ]; then
+		printf "userspace"
+	elif [ $1 = "cpufreq_performance.ko" ]; then
+		printf "performance"
+	elif [ $1 = "cpufreq_powersave.ko" ]; then
+		printf "powersave"
+	elif [ $1 = "cpufreq_schedutil.ko" ]; then
+		printf "schedutil"
+	fi
+}
+
+# $1: governor string, $2: governor module, $3: policy
+# example: module_governor_test_single "ondemand" "cpufreq_ondemand.ko" 2
+module_governor_test_single()
+{
+	printf "** Test: Running ${FUNCNAME[0]} for $3 **\n\n"
+
+	backup_governor $3
+
+	# switch to new governor
+	printf "Switch from $CUR_GOV to $1\n"
+	switch_show_governor $3 $1
+
+	# try removing module, it should fail as governor is used
+	printf "Removing $2 module\n\n"
+	rmmod $2
+	if [ $? = 0 ]; then
+		printf "WARN: rmmod $2 succeeded even if governor is used\n"
+		insmod $2
+	else
+		printf "Pass: unable to remove $2 while it is being used\n\n"
+	fi
+
+	# switch back to old governor
+	printf "Switchback to $CUR_GOV from $1\n"
+	restore_governor $3
+	printf "\n"
+}
+
+# Insert cpufreq governor module and perform basic tests
+# $1: cpufreq-governor module to insert
+module_governor_test()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	# check if module is present or not
+	ls $1 > /dev/null
+	if [ $? != 0 ]; then
+		printf "$1: not present in `pwd` folder\n"
+		return;
+	fi
+
+	# test basic module tests
+	test_basic_insmod_rmmod $1
+
+	# insert module
+	printf "Inserting $1 module\n\n"
+	insmod $1
+	if [ $? != 0 ]; then
+		printf "Insmod $1 failed\n"
+		return;
+	fi
+
+	# switch to new governor for each cpu
+	for_each_policy module_governor_test_single $(find_gov_name $1) $1
+
+	# remove module
+	printf "Removing $1 module\n\n"
+	rmmod $1
+	if [ $? != 0 ]; then
+		printf "rmmod $1 failed\n"
+		return;
+	fi
+	printf "\n"
+}
+
+# test modules: driver and governor
+# $1: driver module, $2: governor module
+module_test()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n\n"
+
+	# check if modules are present or not
+	ls $1 $2 > /dev/null
+	if [ $? != 0 ]; then
+		printf "$1 or $2: is not present in `pwd` folder\n"
+		return;
+	fi
+
+	# TEST1: Insert gov after driver
+	# insert driver module
+	printf "Inserting $1 module\n\n"
+	insmod $1
+	if [ $? != 0 ]; then
+		printf "Insmod $1 failed\n"
+		return;
+	fi
+
+	# run governor tests
+	module_governor_test $2
+
+	# remove driver module
+	printf "Removing $1 module\n\n"
+	rmmod $1
+	if [ $? != 0 ]; then
+		printf "rmmod $1 failed\n"
+		return;
+	fi
+
+	# TEST2: Insert driver after governor
+	# insert governor module
+	printf "Inserting $2 module\n\n"
+	insmod $2
+	if [ $? != 0 ]; then
+		printf "Insmod $2 failed\n"
+		return;
+	fi
+
+	# run governor tests
+	module_driver_test $1
+
+	# remove driver module
+	printf "Removing $2 module\n\n"
+	rmmod $2
+	if [ $? != 0 ]; then
+		printf "rmmod $2 failed\n"
+		return;
+	fi
+}
diff --git a/tools/testing/selftests/cpufreq/special-tests.sh b/tools/testing/selftests/cpufreq/special-tests.sh
new file mode 100755
index 000000000000..8d40505dc468
--- /dev/null
+++ b/tools/testing/selftests/cpufreq/special-tests.sh
@@ -0,0 +1,116 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Special test cases reported by people
+
+# Testcase 1: Reported here: http://marc.info/?l=linux-pm&m=140618592709858&w=2
+
+# protect against multiple inclusion
+if [ $FILE_SPECIAL ]; then
+	return 0
+else
+	FILE_SPECIAL=DONE
+fi
+
+source cpu.sh
+source cpufreq.sh
+source governor.sh
+
+# Test 1
+# $1: policy
+__simple_lockdep()
+{
+	# switch to ondemand
+	__switch_governor $1 "ondemand"
+
+	# cat ondemand files
+	local ondir=$(find_gov_directory $1 "ondemand")
+	if [ -z $ondir ]; then
+		printf "${FUNCNAME[0]}Ondemand directory not created, quit"
+		return
+	fi
+
+	cat $ondir/*
+
+	# switch to conservative
+	__switch_governor $1 "conservative"
+}
+
+simple_lockdep()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n"
+
+	for_each_policy __simple_lockdep
+}
+
+# Test 2
+# $1: policy
+__concurrent_lockdep()
+{
+	for i in `seq 0 100`; do
+		__simple_lockdep $1
+	done
+}
+
+concurrent_lockdep()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n"
+
+	for_each_policy_concurrent __concurrent_lockdep
+}
+
+# Test 3
+quick_shuffle()
+{
+	# this is called concurrently from governor_race
+	for I in `seq 1000`
+	do
+		echo ondemand | sudo tee $CPUFREQROOT/policy*/scaling_governor &
+		echo userspace | sudo tee $CPUFREQROOT/policy*/scaling_governor &
+	done
+}
+
+governor_race()
+{
+	printf "** Test: Running ${FUNCNAME[0]} **\n"
+
+	# run 8 concurrent instances
+	for I in `seq 8`
+	do
+		quick_shuffle &
+	done
+}
+
+# Test 4
+# $1: cpu
+hotplug_with_updates_cpu()
+{
+	local filepath="$CPUROOT/$1/cpufreq"
+
+	# switch to ondemand
+	__switch_governor_for_cpu $1 "ondemand"
+
+	for i in `seq 1 5000`
+	do
+		reboot_cpu $1
+	done &
+
+	local freqs=$(cat $filepath/scaling_available_frequencies)
+	local oldfreq=$(cat $filepath/scaling_min_freq)
+
+	for j in `seq 1 5000`
+	do
+		# Set all frequencies one-by-one
+		for freq in $freqs; do
+			echo $freq > $filepath/scaling_min_freq
+		done
+	done
+
+	# restore old freq
+	echo $oldfreq > $filepath/scaling_min_freq
+}
+
+hotplug_with_updates()
+{
+	for_each_non_boot_cpu hotplug_with_updates_cpu
+}
diff --git a/tools/testing/selftests/damon/.gitignore b/tools/testing/selftests/damon/.gitignore
new file mode 100644
index 000000000000..2f0297657c81
--- /dev/null
+++ b/tools/testing/selftests/damon/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+access_memory
+access_memory_even
diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile
new file mode 100644
index 000000000000..2180c328a825
--- /dev/null
+++ b/tools/testing/selftests/damon/Makefile
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for damon selftests
+
+TEST_GEN_FILES += access_memory access_memory_even
+
+TEST_FILES = _damon_sysfs.py
+TEST_FILES += drgn_dump_damon_status.py
+TEST_FILES += _common.sh
+
+# functionality tests
+TEST_PROGS += sysfs.sh
+TEST_PROGS += sysfs.py
+TEST_PROGS += sysfs_update_schemes_tried_regions_wss_estimation.py
+TEST_PROGS += damos_quota.py damos_quota_goal.py damos_apply_interval.py
+TEST_PROGS += damos_tried_regions.py damon_nr_regions.py
+TEST_PROGS += reclaim.sh lru_sort.sh
+
+# regression tests (reproducers of previously found bugs)
+TEST_PROGS += sysfs_update_removed_scheme_dir.sh
+TEST_PROGS += sysfs_update_schemes_tried_regions_hang.py
+TEST_PROGS += sysfs_memcg_path_leak.sh
+TEST_PROGS += sysfs_no_op_commit_break.py
+
+EXTRA_CLEAN = __pycache__
+
+include ../lib.mk
diff --git a/tools/testing/selftests/damon/_common.sh b/tools/testing/selftests/damon/_common.sh
new file mode 100644
index 000000000000..0279698f733e
--- /dev/null
+++ b/tools/testing/selftests/damon/_common.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+check_dependencies()
+{
+	if [ $EUID -ne 0 ]
+	then
+		echo "Run as root"
+		exit $ksft_skip
+	fi
+}
diff --git a/tools/testing/selftests/damon/_damon_sysfs.py b/tools/testing/selftests/damon/_damon_sysfs.py
new file mode 100644
index 000000000000..748778b563cd
--- /dev/null
+++ b/tools/testing/selftests/damon/_damon_sysfs.py
@@ -0,0 +1,837 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+
+ksft_skip=4
+
+sysfs_root = None
+with open('/proc/mounts', 'r') as f:
+    for line in f:
+        dev_name, mount_point, dev_fs = line.split()[:3]
+        if dev_fs == 'sysfs':
+            sysfs_root = '%s/kernel/mm/damon/admin' % mount_point
+            break
+if sysfs_root is None:
+    print('Seems sysfs not mounted?')
+    exit(ksft_skip)
+
+if not os.path.exists(sysfs_root):
+    print('Seems DAMON disabled?')
+    exit(ksft_skip)
+
+def write_file(path, string):
+    "Returns error string if failed, or None otherwise"
+    string = '%s' % string
+    try:
+        with open(path, 'w') as f:
+            f.write(string)
+    except Exception as e:
+        return '%s' % e
+    return None
+
+def read_file(path):
+    '''Returns the read content and error string.  The read content is None if
+    the reading failed'''
+    try:
+        with open(path, 'r') as f:
+            return f.read(), None
+    except Exception as e:
+        return None, '%s' % e
+
+class DamosAccessPattern:
+    size = None
+    nr_accesses = None
+    age = None
+    scheme = None
+
+    def __init__(self, size=None, nr_accesses=None, age=None):
+        self.size = size
+        self.nr_accesses = nr_accesses
+        self.age = age
+
+        if self.size is None:
+            self.size = [0, 2**64 - 1]
+        if self.nr_accesses is None:
+            self.nr_accesses = [0, 2**32 - 1]
+        if self.age is None:
+            self.age = [0, 2**32 - 1]
+
+    def sysfs_dir(self):
+        return os.path.join(self.scheme.sysfs_dir(), 'access_pattern')
+
+    def stage(self):
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'sz', 'min'), self.size[0])
+        if err is not None:
+            return err
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'sz', 'max'), self.size[1])
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'nr_accesses', 'min'),
+                self.nr_accesses[0])
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'nr_accesses', 'max'),
+                self.nr_accesses[1])
+        if err is not None:
+            return err
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'age', 'min'), self.age[0])
+        if err is not None:
+            return err
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'age', 'max'), self.age[1])
+        if err is not None:
+            return err
+
+qgoal_metric_user_input = 'user_input'
+qgoal_metric_some_mem_psi_us = 'some_mem_psi_us'
+qgoal_metrics = [qgoal_metric_user_input, qgoal_metric_some_mem_psi_us]
+
+class DamosQuotaGoal:
+    metric = None
+    target_value = None
+    current_value = None
+    nid = None
+    effective_bytes = None
+    quota = None            # owner quota
+    idx = None
+
+    def __init__(self, metric, target_value=10000, current_value=0, nid=0):
+        self.metric = metric
+        self.target_value = target_value
+        self.current_value = current_value
+        self.nid = nid
+
+    def sysfs_dir(self):
+        return os.path.join(self.quota.sysfs_dir(), 'goals', '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'target_metric'),
+                         self.metric)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'target_value'),
+                         self.target_value)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'current_value'),
+                         self.current_value)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'nid'), self.nid)
+        if err is not None:
+            return err
+
+        return None
+
+class DamosQuota:
+    sz = None                   # size quota, in bytes
+    ms = None                   # time quota
+    goals = None                # quota goals
+    reset_interval_ms = None    # quota reset interval
+    weight_sz_permil = None
+    weight_nr_accesses_permil = None
+    weight_age_permil = None
+    scheme = None               # owner scheme
+
+    def __init__(self, sz=0, ms=0, goals=None, reset_interval_ms=0,
+                 weight_sz_permil=0, weight_nr_accesses_permil=0,
+                 weight_age_permil=0):
+        self.sz = sz
+        self.ms = ms
+        self.reset_interval_ms = reset_interval_ms
+        self.weight_sz_permil = weight_sz_permil
+        self.weight_nr_accesses_permil = weight_nr_accesses_permil
+        self.weight_age_permil = weight_age_permil
+        self.goals = goals if goals is not None else []
+        for idx, goal in enumerate(self.goals):
+            goal.idx = idx
+            goal.quota = self
+
+    def sysfs_dir(self):
+        return os.path.join(self.scheme.sysfs_dir(), 'quotas')
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'bytes'), self.sz)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'ms'), self.ms)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'reset_interval_ms'),
+                         self.reset_interval_ms)
+        if err is not None:
+            return err
+
+        err = write_file(os.path.join(
+            self.sysfs_dir(), 'weights', 'sz_permil'), self.weight_sz_permil)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(
+            self.sysfs_dir(), 'weights', 'nr_accesses_permil'),
+                         self.weight_nr_accesses_permil)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(
+            self.sysfs_dir(), 'weights', 'age_permil'), self.weight_age_permil)
+        if err is not None:
+            return err
+
+        nr_goals_file = os.path.join(self.sysfs_dir(), 'goals', 'nr_goals')
+        content, err = read_file(nr_goals_file)
+        if err is not None:
+            return err
+        if int(content) != len(self.goals):
+            err = write_file(nr_goals_file, len(self.goals))
+            if err is not None:
+                return err
+        for goal in self.goals:
+            err = goal.stage()
+            if err is not None:
+                return err
+        return None
+
+class DamosWatermarks:
+    metric = None
+    interval = None
+    high = None
+    mid = None
+    low = None
+    scheme = None   # owner scheme
+
+    def __init__(self, metric='none', interval=0, high=0, mid=0, low=0):
+        self.metric = metric
+        self.interval = interval
+        self.high = high
+        self.mid = mid
+        self.low = low
+
+    def sysfs_dir(self):
+        return os.path.join(self.scheme.sysfs_dir(), 'watermarks')
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'metric'), self.metric)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'interval_us'),
+                         self.interval)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'high'), self.high)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'mid'), self.mid)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'low'), self.low)
+        if err is not None:
+            return err
+
+class DamosFilter:
+    type_ = None
+    matching = None
+    allow = None
+    memcg_path = None
+    addr_start = None
+    addr_end = None
+    target_idx = None
+    min_ = None
+    max_ = None
+    idx = None
+    filters = None  # owner filters
+
+    def __init__(self, type_='anon', matching=False, allow=False,
+                 memcg_path='', addr_start=0, addr_end=0, target_idx=0, min_=0,
+                 max_=0):
+        self.type_ = type_
+        self.matching = matching
+        self.allow = allow
+        self.memcg_path = memcg_path,
+        self.addr_start = addr_start
+        self.addr_end = addr_end
+        self.target_idx = target_idx
+        self.min_ = min_
+        self.max_ = max_
+
+    def sysfs_dir(self):
+        return os.path.join(self.filters.sysfs_dir(), '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'type'), self.type_)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'matching'),
+                         self.matching)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'allow'), self.allow)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'memcg_path'),
+                         self.memcg_path)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'addr_start'),
+                         self.addr_start)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'addr_end'),
+                         self.addr_end)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'damon_target_idx'),
+                         self.target_idx)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'min'), self.min_)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'max'), self.max_)
+        if err is not None:
+            return err
+        return None
+
+class DamosFilters:
+    name = None
+    filters = None
+    scheme = None   # owner scheme
+
+    def __init__(self, name, filters=[]):
+        self.name = name
+        self.filters = filters
+        for idx, filter_ in enumerate(self.filters):
+            filter_.idx = idx
+            filter_.filters = self
+
+    def sysfs_dir(self):
+        return os.path.join(self.scheme.sysfs_dir(), self.name)
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'nr_filters'),
+                         len(self.filters))
+        if err is not None:
+            return err
+        for filter_ in self.filters:
+            err = filter_.stage()
+            if err is not None:
+                return err
+        return None
+
+class DamosDest:
+    id = None
+    weight = None
+    idx = None
+    dests = None    # owner dests
+
+    def __init__(self, id=0, weight=0):
+        self.id = id
+        self.weight = weight
+
+    def sysfs_dir(self):
+        return os.path.join(self.dests.sysfs_dir(), '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'id'), self.id)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'weight'), self.weight)
+        if err is not None:
+            return err
+        return None
+
+class DamosDests:
+    dests = None
+    scheme = None   # owner scheme
+
+    def __init__(self, dests=[]):
+        self.dests = dests
+        for idx, dest in enumerate(self.dests):
+            dest.idx = idx
+            dest.dests = self
+
+    def sysfs_dir(self):
+        return os.path.join(self.scheme.sysfs_dir(), 'dests')
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'nr_dests'),
+                         len(self.dests))
+        if err is not None:
+            return err
+        for dest in self.dests:
+            err = dest.stage()
+            if err is not None:
+                return err
+        return None
+
+class DamosStats:
+    nr_tried = None
+    sz_tried = None
+    nr_applied = None
+    sz_applied = None
+    qt_exceeds = None
+
+    def __init__(self, nr_tried, sz_tried, nr_applied, sz_applied, qt_exceeds):
+        self.nr_tried = nr_tried
+        self.sz_tried = sz_tried
+        self.nr_applied = nr_applied
+        self.sz_applied = sz_applied
+        self.qt_exceeds = qt_exceeds
+
+class DamosTriedRegion:
+    def __init__(self, start, end, nr_accesses, age):
+        self.start = start
+        self.end = end
+        self.nr_accesses = nr_accesses
+        self.age = age
+
+class Damos:
+    action = None
+    access_pattern = None
+    quota = None
+    watermarks = None
+    core_filters = None
+    ops_filters = None
+    filters = None
+    apply_interval_us = None
+    target_nid = None
+    dests = None
+    idx = None
+    context = None
+    tried_bytes = None
+    stats = None
+    tried_regions = None
+
+    def __init__(self, action='stat', access_pattern=DamosAccessPattern(),
+                 quota=DamosQuota(), watermarks=DamosWatermarks(),
+                 core_filters=[], ops_filters=[], filters=[], target_nid=0,
+                 dests=DamosDests(), apply_interval_us=0):
+        self.action = action
+        self.access_pattern = access_pattern
+        self.access_pattern.scheme = self
+        self.quota = quota
+        self.quota.scheme = self
+        self.watermarks = watermarks
+        self.watermarks.scheme = self
+
+        self.core_filters = DamosFilters(name='core_filters',
+                                         filters=core_filters)
+        self.core_filters.scheme = self
+        self.ops_filters = DamosFilters(name='ops_filters',
+                                         filters=ops_filters)
+        self.ops_filters.scheme = self
+        self.filters = DamosFilters(name='filters', filters=filters)
+        self.filters.scheme = self
+
+        self.target_nid = target_nid
+        self.dests = dests
+        self.dests.scheme = self
+
+        self.apply_interval_us = apply_interval_us
+
+    def sysfs_dir(self):
+        return os.path.join(
+                self.context.sysfs_dir(), 'schemes', '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'action'), self.action)
+        if err is not None:
+            return err
+        err = self.access_pattern.stage()
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'apply_interval_us'),
+                         '%d' % self.apply_interval_us)
+        if err is not None:
+            return err
+
+        err = self.quota.stage()
+        if err is not None:
+            return err
+
+        err = self.watermarks.stage()
+        if err is not None:
+            return err
+
+        err = self.core_filters.stage()
+        if err is not None:
+            return err
+        err = self.ops_filters.stage()
+        if err is not None:
+            return err
+        err = self.filters.stage()
+        if err is not None:
+            return err
+
+        err = write_file(os.path.join(self.sysfs_dir(), 'target_nid'), '%d' %
+                         self.target_nid)
+        if err is not None:
+            return err
+
+        err = self.dests.stage()
+        if err is not None:
+            return err
+
+class DamonTarget:
+    pid = None
+    obsolete = None
+    # todo: Support target regions if test is made
+    idx = None
+    context = None
+
+    def __init__(self, pid, obsolete=False):
+        self.pid = pid
+        self.obsolete = obsolete
+
+    def sysfs_dir(self):
+        return os.path.join(
+                self.context.sysfs_dir(), 'targets', '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'regions', 'nr_regions'), '0')
+        if err is not None:
+            return err
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'pid_target'), self.pid)
+        if err is not None:
+            return err
+        return write_file(
+                os.path.join(self.sysfs_dir(), 'obsolete_target'),
+                'Y' if self.obsolete else 'N')
+
+class IntervalsGoal:
+    access_bp = None
+    aggrs = None
+    min_sample_us = None
+    max_sample_us = None
+    attrs = None    # owner DamonAttrs
+
+    def __init__(self, access_bp=0, aggrs=0, min_sample_us=0, max_sample_us=0):
+        self.access_bp = access_bp
+        self.aggrs = aggrs
+        self.min_sample_us = min_sample_us
+        self.max_sample_us = max_sample_us
+
+    def sysfs_dir(self):
+        return os.path.join(self.attrs.interval_sysfs_dir(), 'intervals_goal')
+
+    def stage(self):
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'access_bp'), self.access_bp)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'aggrs'), self.aggrs)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'min_sample_us'),
+                         self.min_sample_us)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'max_sample_us'),
+                         self.max_sample_us)
+        if err is not None:
+            return err
+        return None
+
+class DamonAttrs:
+    sample_us = None
+    aggr_us = None
+    intervals_goal = None
+    update_us = None
+    min_nr_regions = None
+    max_nr_regions = None
+    context = None
+
+    def __init__(self, sample_us=5000, aggr_us=100000,
+                 intervals_goal=IntervalsGoal(), update_us=1000000,
+            min_nr_regions=10, max_nr_regions=1000):
+        self.sample_us = sample_us
+        self.aggr_us = aggr_us
+        self.intervals_goal = intervals_goal
+        self.intervals_goal.attrs = self
+        self.update_us = update_us
+        self.min_nr_regions = min_nr_regions
+        self.max_nr_regions = max_nr_regions
+
+    def interval_sysfs_dir(self):
+        return os.path.join(self.context.sysfs_dir(), 'monitoring_attrs',
+                'intervals')
+
+    def nr_regions_range_sysfs_dir(self):
+        return os.path.join(self.context.sysfs_dir(), 'monitoring_attrs',
+                'nr_regions')
+
+    def stage(self):
+        err = write_file(os.path.join(self.interval_sysfs_dir(), 'sample_us'),
+                self.sample_us)
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.interval_sysfs_dir(), 'aggr_us'),
+                self.aggr_us)
+        if err is not None:
+            return err
+        err = self.intervals_goal.stage()
+        if err is not None:
+            return err
+        err = write_file(os.path.join(self.interval_sysfs_dir(), 'update_us'),
+                self.update_us)
+        if err is not None:
+            return err
+
+        err = write_file(
+                os.path.join(self.nr_regions_range_sysfs_dir(), 'min'),
+                self.min_nr_regions)
+        if err is not None:
+            return err
+
+        err = write_file(
+                os.path.join(self.nr_regions_range_sysfs_dir(), 'max'),
+                self.max_nr_regions)
+        if err is not None:
+            return err
+
+class DamonCtx:
+    ops = None
+    monitoring_attrs = None
+    targets = None
+    schemes = None
+    kdamond = None
+    idx = None
+
+    def __init__(self, ops='paddr', monitoring_attrs=DamonAttrs(), targets=[],
+            schemes=[]):
+        self.ops = ops
+        self.monitoring_attrs = monitoring_attrs
+        self.monitoring_attrs.context = self
+
+        self.targets = targets
+        for idx, target in enumerate(self.targets):
+            target.idx = idx
+            target.context = self
+
+        self.schemes = schemes
+        for idx, scheme in enumerate(self.schemes):
+            scheme.idx = idx
+            scheme.context = self
+
+    def sysfs_dir(self):
+        return os.path.join(self.kdamond.sysfs_dir(), 'contexts',
+                '%d' % self.idx)
+
+    def stage(self):
+        err = write_file(
+                os.path.join(self.sysfs_dir(), 'operations'), self.ops)
+        if err is not None:
+            return err
+        err = self.monitoring_attrs.stage()
+        if err is not None:
+            return err
+
+        nr_targets_file = os.path.join(
+                self.sysfs_dir(), 'targets', 'nr_targets')
+        content, err = read_file(nr_targets_file)
+        if err is not None:
+            return err
+        if int(content) != len(self.targets):
+            err = write_file(nr_targets_file, '%d' % len(self.targets))
+            if err is not None:
+                return err
+        for target in self.targets:
+            err = target.stage()
+            if err is not None:
+                return err
+
+        nr_schemes_file = os.path.join(
+                self.sysfs_dir(), 'schemes', 'nr_schemes')
+        content, err = read_file(nr_schemes_file)
+        if err is not None:
+            return err
+        if int(content) != len(self.schemes):
+            err = write_file(nr_schemes_file, '%d' % len(self.schemes))
+            if err is not None:
+                return err
+        for scheme in self.schemes:
+            err = scheme.stage()
+            if err is not None:
+                return err
+        return None
+
+class Kdamond:
+    state = None
+    pid = None
+    contexts = None
+    idx = None      # index of this kdamond between siblings
+    kdamonds = None # parent
+
+    def __init__(self, contexts=[]):
+        self.contexts = contexts
+        for idx, context in enumerate(self.contexts):
+            context.idx = idx
+            context.kdamond = self
+
+    def sysfs_dir(self):
+        return os.path.join(self.kdamonds.sysfs_dir(), '%d' % self.idx)
+
+    def start(self):
+        nr_contexts_file = os.path.join(self.sysfs_dir(),
+                'contexts', 'nr_contexts')
+        content, err = read_file(nr_contexts_file)
+        if err is not None:
+            return err
+        if int(content) != len(self.contexts):
+            err = write_file(nr_contexts_file, '%d' % len(self.contexts))
+            if err is not None:
+                return err
+
+        for context in self.contexts:
+            err = context.stage()
+            if err is not None:
+                return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'on')
+        if err is not None:
+            return err
+        self.pid, err = read_file(os.path.join(self.sysfs_dir(), 'pid'))
+        return err
+
+    def stop(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'off')
+        return err
+
+    def update_schemes_tried_regions(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'),
+                         'update_schemes_tried_regions')
+        if err is not None:
+            return err
+        for context in self.contexts:
+            for scheme in context.schemes:
+                tried_regions = []
+                tried_regions_dir = os.path.join(
+                        scheme.sysfs_dir(), 'tried_regions')
+                region_indices = []
+                for filename in os.listdir(
+                        os.path.join(scheme.sysfs_dir(), 'tried_regions')):
+                    tried_region_dir = os.path.join(tried_regions_dir, filename)
+                    if not os.path.isdir(tried_region_dir):
+                        continue
+                    region_indices.append(int(filename))
+                for region_idx in sorted(region_indices):
+                    tried_region_dir = os.path.join(tried_regions_dir,
+                                                    '%d' % region_idx)
+                    region_values = []
+                    for f in ['start', 'end', 'nr_accesses', 'age']:
+                        content, err = read_file(
+                                os.path.join(tried_region_dir, f))
+                        if err is not None:
+                            return err
+                        region_values.append(int(content))
+                    tried_regions.append(DamosTriedRegion(*region_values))
+                scheme.tried_regions = tried_regions
+
+    def update_schemes_tried_bytes(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'),
+                'update_schemes_tried_bytes')
+        if err is not None:
+            return err
+        for context in self.contexts:
+            for scheme in context.schemes:
+                content, err = read_file(os.path.join(scheme.sysfs_dir(),
+                    'tried_regions', 'total_bytes'))
+                if err is not None:
+                    return err
+                scheme.tried_bytes = int(content)
+
+    def update_schemes_stats(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'),
+                'update_schemes_stats')
+        if err is not None:
+            return err
+        for context in self.contexts:
+            for scheme in context.schemes:
+                stat_values = []
+                for stat in ['nr_tried', 'sz_tried', 'nr_applied',
+                             'sz_applied', 'qt_exceeds']:
+                    content, err = read_file(
+                            os.path.join(scheme.sysfs_dir(), 'stats', stat))
+                    if err is not None:
+                        return err
+                    stat_values.append(int(content))
+                scheme.stats = DamosStats(*stat_values)
+
+    def update_schemes_effective_quotas(self):
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'),
+                         'update_schemes_effective_quotas')
+        if err is not None:
+            return err
+        for context in self.contexts:
+            for scheme in context.schemes:
+                for goal in scheme.quota.goals:
+                    content, err = read_file(
+                            os.path.join(scheme.quota.sysfs_dir(),
+                                         'effective_bytes'))
+                    if err is not None:
+                        return err
+                    goal.effective_bytes = int(content)
+        return None
+
+    def commit(self):
+        nr_contexts_file = os.path.join(self.sysfs_dir(),
+                'contexts', 'nr_contexts')
+        content, err = read_file(nr_contexts_file)
+        if err is not None:
+            return err
+        if int(content) != len(self.contexts):
+            err = write_file(nr_contexts_file, '%d' % len(self.contexts))
+            if err is not None:
+                return err
+
+        for context in self.contexts:
+            err = context.stage()
+            if err is not None:
+                return err
+        err = write_file(os.path.join(self.sysfs_dir(), 'state'), 'commit')
+        return err
+
+
+    def commit_schemes_quota_goals(self):
+        for context in self.contexts:
+            for scheme in context.schemes:
+                for goal in scheme.quota.goals:
+                    err = goal.stage()
+                    if err is not None:
+                        print('commit_schemes_quota_goals failed stagign: %s'%
+                              err)
+                        exit(1)
+        return write_file(os.path.join(self.sysfs_dir(), 'state'),
+                         'commit_schemes_quota_goals')
+
+class Kdamonds:
+    kdamonds = []
+
+    def __init__(self, kdamonds=[]):
+        self.kdamonds = kdamonds
+        for idx, kdamond in enumerate(self.kdamonds):
+            kdamond.idx = idx
+            kdamond.kdamonds = self
+
+    def sysfs_dir(self):
+        return os.path.join(sysfs_root, 'kdamonds')
+
+    def start(self):
+        err = write_file(os.path.join(self.sysfs_dir(),  'nr_kdamonds'),
+                '%s' % len(self.kdamonds))
+        if err is not None:
+            return err
+        for kdamond in self.kdamonds:
+            err = kdamond.start()
+            if err is not None:
+                return err
+        return None
+
+    def stop(self):
+        for kdamond in self.kdamonds:
+            err = kdamond.stop()
+            if err is not None:
+                return err
+        return None
diff --git a/tools/testing/selftests/damon/access_memory.c b/tools/testing/selftests/damon/access_memory.c
new file mode 100644
index 000000000000..56b17e8fe1be
--- /dev/null
+++ b/tools/testing/selftests/damon/access_memory.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Artificial memory access program for testing DAMON.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+int main(int argc, char *argv[])
+{
+	char **regions;
+	clock_t start_clock;
+	int nr_regions;
+	int sz_region;
+	int access_time_ms;
+	int i;
+
+	if (argc != 4) {
+		printf("Usage: %s <number> <size (bytes)> <time (ms)>\n",
+				argv[0]);
+		return -1;
+	}
+
+	nr_regions = atoi(argv[1]);
+	sz_region = atoi(argv[2]);
+	access_time_ms = atoi(argv[3]);
+
+	regions = malloc(sizeof(*regions) * nr_regions);
+	for (i = 0; i < nr_regions; i++)
+		regions[i] = malloc(sz_region);
+
+	for (i = 0; i < nr_regions; i++) {
+		start_clock = clock();
+		while ((clock() - start_clock) * 1000 / CLOCKS_PER_SEC <
+				access_time_ms)
+			memset(regions[i], i, sz_region);
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/damon/access_memory_even.c b/tools/testing/selftests/damon/access_memory_even.c
new file mode 100644
index 000000000000..93f3a71bcfd4
--- /dev/null
+++ b/tools/testing/selftests/damon/access_memory_even.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Artificial memory access program for testing DAMON.
+ *
+ * Receives number of regions and size of each region from user.  Allocate the
+ * regions and repeatedly access even numbered (starting from zero) regions.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(int argc, char *argv[])
+{
+	char **regions;
+	int nr_regions;
+	int sz_region;
+	int i;
+
+	if (argc != 3) {
+		printf("Usage: %s <number> <size (bytes)>\n", argv[0]);
+		return -1;
+	}
+
+	nr_regions = atoi(argv[1]);
+	sz_region = atoi(argv[2]);
+
+	regions = malloc(sizeof(*regions) * nr_regions);
+	for (i = 0; i < nr_regions; i++)
+		regions[i] = malloc(sz_region);
+
+	while (1) {
+		for (i = 0; i < nr_regions; i++) {
+			if (i % 2 == 0)
+				memset(regions[i], i, sz_region);
+		}
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/damon/config b/tools/testing/selftests/damon/config
new file mode 100644
index 000000000000..a68a9fead5dc
--- /dev/null
+++ b/tools/testing/selftests/damon/config
@@ -0,0 +1,6 @@
+CONFIG_DAMON=y
+CONFIG_DAMON_SYSFS=y
+CONFIG_DAMON_PADDR=y
+CONFIG_DAMON_VADDR=y
+CONFIG_DAMON_RECLAIM=y
+CONFIG_DAMON_LRU_SORT=y
diff --git a/tools/testing/selftests/damon/damon_nr_regions.py b/tools/testing/selftests/damon/damon_nr_regions.py
new file mode 100755
index 000000000000..58f3291fed12
--- /dev/null
+++ b/tools/testing/selftests/damon/damon_nr_regions.py
@@ -0,0 +1,147 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def test_nr_regions(real_nr_regions, min_nr_regions, max_nr_regions):
+    '''
+    Create process of the given 'real_nr_regions' regions, monitor it using
+    DAMON with given '{min,max}_nr_regions' monitoring parameter.
+
+    Exit with non-zero return code if the given {min,max}_nr_regions is not
+    kept.
+    '''
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory_even', '%d' % real_nr_regions,
+                             '%d' % sz_region])
+
+    # stat every monitored regions
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                monitoring_attrs=_damon_sysfs.DamonAttrs(
+                    min_nr_regions=min_nr_regions,
+                    max_nr_regions=max_nr_regions),
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(action='stat',
+                    )] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err is not None:
+        proc.terminate()
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    collected_nr_regions = []
+    while proc.poll() is None:
+        time.sleep(0.1)
+        err = kdamonds.kdamonds[0].update_schemes_tried_regions()
+        if err is not None:
+            proc.terminate()
+            print('tried regions update failed: %s' % err)
+            exit(1)
+
+        scheme = kdamonds.kdamonds[0].contexts[0].schemes[0]
+        if scheme.tried_regions is None:
+            proc.terminate()
+            print('tried regions is not collected')
+            exit(1)
+
+        nr_tried_regions = len(scheme.tried_regions)
+        if nr_tried_regions <= 0:
+            proc.terminate()
+            print('tried regions is not created')
+            exit(1)
+        collected_nr_regions.append(nr_tried_regions)
+        if len(collected_nr_regions) > 10:
+            break
+    proc.terminate()
+    kdamonds.stop()
+
+    test_name = 'nr_regions test with %d/%d/%d real/min/max nr_regions' % (
+            real_nr_regions, min_nr_regions, max_nr_regions)
+    collected_nr_regions.sort()
+    if (collected_nr_regions[0] < min_nr_regions or
+        collected_nr_regions[-1] > max_nr_regions):
+        print('fail %s' % test_name)
+        print('number of regions that collected are:')
+        for nr in collected_nr_regions:
+            print(nr)
+        exit(1)
+    print('pass %s ' % test_name)
+
+def main():
+    # test min_nr_regions larger than real nr regions
+    test_nr_regions(10, 20, 100)
+
+    # test max_nr_regions smaller than real nr regions
+    test_nr_regions(15, 3, 10)
+
+    # test online-tuned max_nr_regions that smaller than real nr regions
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory_even', '14', '%d' % sz_region])
+
+    # stat every monitored regions
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                monitoring_attrs=_damon_sysfs.DamonAttrs(
+                    min_nr_regions=10, max_nr_regions=1000),
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(action='stat',
+                    )] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err is not None:
+        proc.terminate()
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    # wait until the real regions are found
+    time.sleep(3)
+
+    attrs = kdamonds.kdamonds[0].contexts[0].monitoring_attrs
+    attrs.min_nr_regions = 3
+    attrs.max_nr_regions = 7
+    attrs.update_us = 100000
+    err = kdamonds.kdamonds[0].commit()
+    if err is not None:
+        proc.terminate()
+        print('commit failed: %s' % err)
+        exit(1)
+    # wait for next merge operation is executed
+    time.sleep(0.3)
+
+    err = kdamonds.kdamonds[0].update_schemes_tried_regions()
+    if err is not None:
+        proc.terminate()
+        print('tried regions update failed: %s' % err)
+        exit(1)
+
+    scheme = kdamonds.kdamonds[0].contexts[0].schemes[0]
+    if scheme.tried_regions is None:
+        proc.terminate()
+        print('tried regions is not collected')
+        exit(1)
+
+    nr_tried_regions = len(scheme.tried_regions)
+    if nr_tried_regions <= 0:
+        proc.terminate()
+        print('tried regions is not created')
+        exit(1)
+    proc.terminate()
+
+    if nr_tried_regions > 7:
+        print('fail online-tuned max_nr_regions: %d > 7' % nr_tried_regions)
+        exit(1)
+    print('pass online-tuned max_nr_regions')
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/damos_apply_interval.py b/tools/testing/selftests/damon/damos_apply_interval.py
new file mode 100755
index 000000000000..f04d43702481
--- /dev/null
+++ b/tools/testing/selftests/damon/damos_apply_interval.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    # access two 10 MiB memory regions, 2 second per each
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory', '2', '%d' % sz_region, '2000'])
+
+    # Set quota up to 1 MiB per 100 ms
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[
+                    _damon_sysfs.Damos(
+                        access_pattern=_damon_sysfs.DamosAccessPattern(
+                            # >= 25% access rate, >= 200ms age
+                            nr_accesses=[5, 20], age=[2, 2**64 - 1]),
+                        # aggregation interval (100 ms) is used
+                        apply_interval_us=0),
+                    # use 10ms apply interval
+                    _damon_sysfs.Damos(
+                        access_pattern=_damon_sysfs.DamosAccessPattern(
+                            # >= 25% access rate, >= 200ms age
+                            nr_accesses=[5, 20], age=[2, 2**64 - 1]),
+                        # explicitly set 10 ms apply interval
+                        apply_interval_us=10 * 1000)
+                    ] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err != None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    wss_collected = []
+    nr_quota_exceeds = 0
+    while proc.poll() == None:
+        time.sleep(0.1)
+        err = kdamonds.kdamonds[0].update_schemes_stats()
+        if err != None:
+            print('stats update failed: %s' % err)
+            exit(1)
+    schemes = kdamonds.kdamonds[0].contexts[0].schemes
+    nr_tried_stats = [s.stats.nr_tried for s in schemes]
+    if nr_tried_stats[0] == 0 or nr_tried_stats[1] == 0:
+        print('scheme(s) are not tried')
+        exit(1)
+
+    # Because the second scheme was having the apply interval that is ten times
+    # lower than that of the first scheme, the second scheme should be tried
+    # about ten times more frequently than the first scheme.  For possible
+    # timing errors, check if it was at least nine times more freuqnetly tried.
+    ratio = nr_tried_stats[1] / nr_tried_stats[0]
+    if ratio < 9:
+        print('%d / %d = %f (< 9)' %
+              (nr_tried_stats[1], nr_tried_stats[0], ratio))
+        exit(1)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/damos_quota.py b/tools/testing/selftests/damon/damos_quota.py
new file mode 100755
index 000000000000..57c4937aaed2
--- /dev/null
+++ b/tools/testing/selftests/damon/damos_quota.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    # access two 10 MiB memory regions, 2 second per each
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory', '2', '%d' % sz_region, '2000'])
+
+    # Set quota up to 1 MiB per 100 ms
+    sz_quota = 1024 * 1024 # 1 MiB
+    quota_reset_interval = 100 # 100 ms
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(
+                    access_pattern=_damon_sysfs.DamosAccessPattern(
+                        # >= 25% access rate, >= 200ms age
+                        nr_accesses=[5, 20], age=[2, 2**64 - 1]),
+                    quota=_damon_sysfs.DamosQuota(
+                        sz=sz_quota, reset_interval_ms=quota_reset_interval)
+                    )] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err != None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    wss_collected = []
+    nr_quota_exceeds = 0
+    while proc.poll() == None:
+        time.sleep(0.1)
+        err = kdamonds.kdamonds[0].update_schemes_tried_bytes()
+        if err != None:
+            print('tried bytes update failed: %s' % err)
+            exit(1)
+        err = kdamonds.kdamonds[0].update_schemes_stats()
+        if err != None:
+            print('stats update failed: %s' % err)
+            exit(1)
+
+        scheme = kdamonds.kdamonds[0].contexts[0].schemes[0]
+        wss_collected.append(scheme.tried_bytes)
+        nr_quota_exceeds = scheme.stats.qt_exceeds
+
+    wss_collected.sort()
+    nr_expected_quota_exceeds = 0
+    for wss in wss_collected:
+        if wss > sz_quota:
+            print('quota is not kept: %s > %s' % (wss, sz_quota))
+            print('collected samples are as below')
+            print('\n'.join(['%d' % wss for wss in wss_collected]))
+            exit(1)
+        if wss == sz_quota:
+            nr_expected_quota_exceeds += 1
+
+    if nr_quota_exceeds < nr_expected_quota_exceeds:
+        print('quota is exceeded less than expected: %d < %d' %
+              (nr_quota_exceeds, nr_expected_quota_exceeds))
+        exit(1)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/damos_quota_goal.py b/tools/testing/selftests/damon/damos_quota_goal.py
new file mode 100755
index 000000000000..f76e0412b564
--- /dev/null
+++ b/tools/testing/selftests/damon/damos_quota_goal.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    # access two 10 MiB memory regions, 2 second per each
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory', '2', '%d' % sz_region, '2000'])
+
+    goal = _damon_sysfs.DamosQuotaGoal(
+            metric=_damon_sysfs.qgoal_metric_user_input, target_value=10000)
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(
+                    action='stat',
+                    quota=_damon_sysfs.DamosQuota(
+                        goals=[goal], reset_interval_ms=100),
+                    )] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err != None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    score_values_to_test = [0, 15000, 5000, 18000]
+    while proc.poll() == None:
+        if len(score_values_to_test) == 0:
+            time.sleep(0.1)
+            continue
+
+        goal.current_value = score_values_to_test.pop(0)
+        expect_increase = goal.current_value < goal.target_value
+
+        err = kdamonds.kdamonds[0].commit_schemes_quota_goals()
+        if err is not None:
+            print('commit_schemes_quota_goals failed: %s' % err)
+            exit(1)
+
+        err = kdamonds.kdamonds[0].update_schemes_effective_quotas()
+        if err is not None:
+            print('before-update_schemes_effective_quotas failed: %s' % err)
+            exit(1)
+        last_effective_bytes = goal.effective_bytes
+
+        time.sleep(0.5)
+
+        err = kdamonds.kdamonds[0].update_schemes_effective_quotas()
+        if err is not None:
+            print('after-update_schemes_effective_quotas failed: %s' % err)
+            exit(1)
+
+        print('score: %s, effective quota: %d -> %d (%.3fx)' % (
+            goal.current_value, last_effective_bytes, goal.effective_bytes,
+            goal.effective_bytes / last_effective_bytes
+            if last_effective_bytes != 0 else -1.0))
+
+        if last_effective_bytes == goal.effective_bytes:
+            # effective quota was already minimum that cannot be more reduced
+            if expect_increase is False and last_effective_bytes == 1:
+                continue
+            print('efective bytes not changed: %d' % goal.effective_bytes)
+            exit(1)
+
+        increased = last_effective_bytes < goal.effective_bytes
+        if expect_increase != increased:
+            print('expectation of increase (%s) != increased (%s)' %
+                  (expect_increase, increased))
+            exit(1)
+        last_effective_bytes = goal.effective_bytes
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/damos_tried_regions.py b/tools/testing/selftests/damon/damos_tried_regions.py
new file mode 100755
index 000000000000..3b347eb28bd2
--- /dev/null
+++ b/tools/testing/selftests/damon/damos_tried_regions.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    # repeatedly access even-numbered ones in 14 regions of 10 MiB size
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory_even', '14', '%d' % sz_region])
+
+    # stat every monitored regions
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(action='stat',
+                    )] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err is not None:
+        proc.terminate()
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    collected_nr_regions = []
+    while proc.poll() is None:
+        time.sleep(0.1)
+        err = kdamonds.kdamonds[0].update_schemes_tried_regions()
+        if err is not None:
+            proc.terminate()
+            print('tried regions update failed: %s' % err)
+            exit(1)
+
+        scheme = kdamonds.kdamonds[0].contexts[0].schemes[0]
+        if scheme.tried_regions is None:
+            proc.terminate()
+            print('tried regions is not collected')
+            exit(1)
+
+        nr_tried_regions = len(scheme.tried_regions)
+        if nr_tried_regions <= 0:
+            proc.terminate()
+            print('tried regions is not created')
+            exit(1)
+        collected_nr_regions.append(nr_tried_regions)
+        if len(collected_nr_regions) > 10:
+            break
+    proc.terminate()
+
+    collected_nr_regions.sort()
+    sample = collected_nr_regions[4]
+    print('50-th percentile nr_regions: %d' % sample)
+    print('expectation (>= 14) is %s' % 'met' if sample >= 14 else 'not met')
+    if collected_nr_regions[4] < 14:
+        print('full nr_regions:')
+        print('\n'.join(collected_nr_regions))
+        exit(1)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/drgn_dump_damon_status.py b/tools/testing/selftests/damon/drgn_dump_damon_status.py
new file mode 100755
index 000000000000..5374d18d1fa8
--- /dev/null
+++ b/tools/testing/selftests/damon/drgn_dump_damon_status.py
@@ -0,0 +1,223 @@
+#!/usr/bin/env drgn
+# SPDX-License-Identifier: GPL-2.0
+
+'''
+Read DAMON context data and dump as a json string.
+'''
+import drgn
+from drgn import FaultError, NULL, Object, cast, container_of, execscript, offsetof, reinterpret, sizeof
+from drgn.helpers.common import *
+from drgn.helpers.linux import *
+
+import json
+import sys
+
+if "prog" not in globals():
+    try:
+        prog = drgn.get_default_prog()
+    except drgn.NoDefaultProgramError:
+        prog = drgn.program_from_kernel()
+        drgn.set_default_prog(prog)
+
+def to_dict(object, attr_name_converter):
+    d = {}
+    for attr_name, converter in attr_name_converter:
+        d[attr_name] = converter(getattr(object, attr_name))
+    return d
+
+def ops_to_dict(ops):
+    return to_dict(ops, [
+        ['id', int],
+        ])
+
+def intervals_goal_to_dict(goal):
+    return to_dict(goal, [
+        ['access_bp', int],
+        ['aggrs', int],
+        ['min_sample_us', int],
+        ['max_sample_us', int],
+        ])
+
+def attrs_to_dict(attrs):
+    return to_dict(attrs, [
+        ['sample_interval', int],
+        ['aggr_interval', int],
+        ['ops_update_interval', int],
+        ['intervals_goal', intervals_goal_to_dict],
+        ['min_nr_regions', int],
+        ['max_nr_regions', int],
+        ])
+
+def addr_range_to_dict(addr_range):
+    return to_dict(addr_range, [
+        ['start', int],
+        ['end', int],
+        ])
+
+def region_to_dict(region):
+    return to_dict(region, [
+        ['ar', addr_range_to_dict],
+        ['sampling_addr', int],
+        ['nr_accesses', int],
+        ['nr_accesses_bp', int],
+        ['age', int],
+        ])
+
+def regions_to_list(regions):
+    return [region_to_dict(r)
+            for r in list_for_each_entry(
+                'struct damon_region', regions.address_of_(), 'list')]
+
+def target_to_dict(target):
+    return to_dict(target, [
+        ['pid', int],
+        ['nr_regions', int],
+        ['regions_list', regions_to_list],
+        ['obsolete', bool],
+        ])
+
+def targets_to_list(targets):
+    return [target_to_dict(t)
+            for t in list_for_each_entry(
+                'struct damon_target', targets.address_of_(), 'list')]
+
+def damos_access_pattern_to_dict(pattern):
+    return to_dict(pattern, [
+        ['min_sz_region', int],
+        ['max_sz_region', int],
+        ['min_nr_accesses', int],
+        ['max_nr_accesses', int],
+        ['min_age_region', int],
+        ['max_age_region', int],
+        ])
+
+def damos_quota_goal_to_dict(goal):
+    return to_dict(goal, [
+        ['metric', int],
+        ['target_value', int],
+        ['current_value', int],
+        ['last_psi_total', int],
+        ['nid', int],
+        ])
+
+def damos_quota_goals_to_list(goals):
+    return [damos_quota_goal_to_dict(g)
+            for g in list_for_each_entry(
+                'struct damos_quota_goal', goals.address_of_(), 'list')]
+
+def damos_quota_to_dict(quota):
+    return to_dict(quota, [
+        ['reset_interval', int],
+        ['ms', int], ['sz', int],
+        ['goals', damos_quota_goals_to_list],
+        ['esz', int],
+        ['weight_sz', int],
+        ['weight_nr_accesses', int],
+        ['weight_age', int],
+        ])
+
+def damos_watermarks_to_dict(watermarks):
+    return to_dict(watermarks, [
+        ['metric', int],
+        ['interval', int],
+        ['high', int], ['mid', int], ['low', int],
+        ])
+
+def damos_migrate_dests_to_dict(dests):
+    nr_dests = int(dests.nr_dests)
+    node_id_arr = []
+    weight_arr = []
+    for i in range(nr_dests):
+        node_id_arr.append(int(dests.node_id_arr[i]))
+        weight_arr.append(int(dests.weight_arr[i]))
+    return {
+            'node_id_arr': node_id_arr,
+            'weight_arr': weight_arr,
+            'nr_dests': nr_dests,
+            }
+
+def damos_filter_to_dict(damos_filter):
+    filter_type_keyword = {
+            0: 'anon',
+            1: 'active',
+            2: 'memcg',
+            3: 'young',
+            4: 'hugepage_size',
+            5: 'unmapped',
+            6: 'addr',
+            7: 'target'
+            }
+    dict_ = {
+            'type': filter_type_keyword[int(damos_filter.type)],
+            'matching': bool(damos_filter.matching),
+            'allow': bool(damos_filter.allow),
+            }
+    type_ = dict_['type']
+    if type_ == 'memcg':
+        dict_['memcg_id'] = int(damos_filter.memcg_id)
+    elif type_ == 'addr':
+        dict_['addr_range'] = [int(damos_filter.addr_range.start),
+                               int(damos_filter.addr_range.end)]
+    elif type_ == 'target':
+        dict_['target_idx'] = int(damos_filter.target_idx)
+    elif type_ == 'hugeapge_size':
+        dict_['sz_range'] = [int(damos_filter.sz_range.min),
+                             int(damos_filter.sz_range.max)]
+    return dict_
+
+def scheme_to_dict(scheme):
+    dict_ = to_dict(scheme, [
+        ['pattern', damos_access_pattern_to_dict],
+        ['action', int],
+        ['apply_interval_us', int],
+        ['quota', damos_quota_to_dict],
+        ['wmarks', damos_watermarks_to_dict],
+        ['target_nid', int],
+        ['migrate_dests', damos_migrate_dests_to_dict],
+        ])
+    core_filters = []
+    for f in list_for_each_entry(
+            'struct damos_filter', scheme.core_filters.address_of_(), 'list'):
+        core_filters.append(damos_filter_to_dict(f))
+    dict_['core_filters'] = core_filters
+    ops_filters = []
+    for f in list_for_each_entry(
+            'struct damos_filter', scheme.ops_filters.address_of_(), 'list'):
+        ops_filters.append(damos_filter_to_dict(f))
+    dict_['ops_filters'] = ops_filters
+
+    return dict_
+
+def schemes_to_list(schemes):
+    return [scheme_to_dict(s)
+            for s in list_for_each_entry(
+                'struct damos', schemes.address_of_(), 'list')]
+
+def damon_ctx_to_dict(ctx):
+    return to_dict(ctx, [
+        ['ops', ops_to_dict],
+        ['attrs', attrs_to_dict],
+        ['adaptive_targets', targets_to_list],
+        ['schemes', schemes_to_list],
+        ])
+
+def main():
+    if len(sys.argv) < 3:
+        print('Usage: %s <kdamond pid> <file>' % sys.argv[0])
+        exit(1)
+
+    pid = int(sys.argv[1])
+    file_to_store = sys.argv[2]
+
+    kthread_data = cast('struct kthread *',
+                        find_task(prog, pid).worker_private).data
+    ctx = cast('struct damon_ctx *', kthread_data)
+    status = {'contexts': [damon_ctx_to_dict(ctx)]}
+    if file_to_store == 'stdout':
+        print(json.dumps(status, indent=4))
+    else:
+        with open(file_to_store, 'w') as f:
+            json.dump(status, f, indent=4)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/lru_sort.sh b/tools/testing/selftests/damon/lru_sort.sh
new file mode 100755
index 000000000000..1e4849db78a9
--- /dev/null
+++ b/tools/testing/selftests/damon/lru_sort.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source _common.sh
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_dependencies
+
+damon_lru_sort_enabled="/sys/module/damon_lru_sort/parameters/enabled"
+if [ ! -f "$damon_lru_sort_enabled" ]
+then
+	echo "No 'enabled' file.  Maybe DAMON_LRU_SORT not built"
+	exit $ksft_skip
+fi
+
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+	echo "Another kdamond is running"
+	exit $ksft_skip
+fi
+
+echo Y > "$damon_lru_sort_enabled"
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 1 ]
+then
+	echo "kdamond is not turned on"
+	exit 1
+fi
+
+echo N > "$damon_lru_sort_enabled"
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+	echo "kdamond is not turned off"
+	exit 1
+fi
diff --git a/tools/testing/selftests/damon/reclaim.sh b/tools/testing/selftests/damon/reclaim.sh
new file mode 100755
index 000000000000..e56ceb035129
--- /dev/null
+++ b/tools/testing/selftests/damon/reclaim.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source _common.sh
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_dependencies
+
+damon_reclaim_enabled="/sys/module/damon_reclaim/parameters/enabled"
+if [ ! -f "$damon_reclaim_enabled" ]
+then
+	echo "No 'enabled' file.  Maybe DAMON_RECLAIM not built"
+	exit $ksft_skip
+fi
+
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+	echo "Another kdamond is running"
+	exit $ksft_skip
+fi
+
+echo Y > "$damon_reclaim_enabled"
+
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 1 ]
+then
+	echo "kdamond is not turned on"
+	exit 1
+fi
+
+echo N > "$damon_reclaim_enabled"
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+	echo "kdamond is not turned off"
+	exit 1
+fi
diff --git a/tools/testing/selftests/damon/sysfs.py b/tools/testing/selftests/damon/sysfs.py
new file mode 100755
index 000000000000..9cca71eb0325
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs.py
@@ -0,0 +1,303 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import json
+import os
+import subprocess
+
+import _damon_sysfs
+
+def dump_damon_status_dict(pid):
+    try:
+        subprocess.check_output(['which', 'drgn'], stderr=subprocess.DEVNULL)
+    except:
+        return None, 'drgn not found'
+    file_dir = os.path.dirname(os.path.abspath(__file__))
+    dump_script = os.path.join(file_dir, 'drgn_dump_damon_status.py')
+    rc = subprocess.call(['drgn', dump_script, pid, 'damon_dump_output'],
+                         stderr=subprocess.DEVNULL)
+    if rc != 0:
+        return None, 'drgn fail'
+    try:
+        with open('damon_dump_output', 'r') as f:
+            return json.load(f), None
+    except Exception as e:
+        return None, 'json.load fail (%s)' % e
+
+def fail(expectation, status):
+    print('unexpected %s' % expectation)
+    print(json.dumps(status, indent=4))
+    exit(1)
+
+def assert_true(condition, expectation, status):
+    if condition is not True:
+        fail(expectation, status)
+
+def assert_watermarks_committed(watermarks, dump):
+    wmark_metric_val = {
+            'none': 0,
+            'free_mem_rate': 1,
+            }
+    assert_true(dump['metric'] == wmark_metric_val[watermarks.metric],
+                'metric', dump)
+    assert_true(dump['interval'] == watermarks.interval, 'interval', dump)
+    assert_true(dump['high'] == watermarks.high, 'high', dump)
+    assert_true(dump['mid'] == watermarks.mid, 'mid', dump)
+    assert_true(dump['low'] == watermarks.low, 'low', dump)
+
+def assert_quota_goal_committed(qgoal, dump):
+    metric_val = {
+            'user_input': 0,
+            'some_mem_psi_us': 1,
+            'node_mem_used_bp': 2,
+            'node_mem_free_bp': 3,
+            }
+    assert_true(dump['metric'] == metric_val[qgoal.metric], 'metric', dump)
+    assert_true(dump['target_value'] == qgoal.target_value, 'target_value',
+                dump)
+    if qgoal.metric == 'user_input':
+        assert_true(dump['current_value'] == qgoal.current_value,
+                    'current_value', dump)
+    assert_true(dump['nid'] == qgoal.nid, 'nid', dump)
+
+def assert_quota_committed(quota, dump):
+    assert_true(dump['reset_interval'] == quota.reset_interval_ms,
+                'reset_interval', dump)
+    assert_true(dump['ms'] == quota.ms, 'ms', dump)
+    assert_true(dump['sz'] == quota.sz, 'sz', dump)
+    for idx, qgoal in enumerate(quota.goals):
+        assert_quota_goal_committed(qgoal, dump['goals'][idx])
+    assert_true(dump['weight_sz'] == quota.weight_sz_permil, 'weight_sz', dump)
+    assert_true(dump['weight_nr_accesses'] == quota.weight_nr_accesses_permil,
+                'weight_nr_accesses', dump)
+    assert_true(
+            dump['weight_age'] == quota.weight_age_permil, 'weight_age', dump)
+
+
+def assert_migrate_dests_committed(dests, dump):
+    assert_true(dump['nr_dests'] == len(dests.dests), 'nr_dests', dump)
+    for idx, dest in enumerate(dests.dests):
+        assert_true(dump['node_id_arr'][idx] == dest.id, 'node_id', dump)
+        assert_true(dump['weight_arr'][idx] == dest.weight, 'weight', dump)
+
+def assert_filter_committed(filter_, dump):
+    assert_true(filter_.type_ == dump['type'], 'type', dump)
+    assert_true(filter_.matching == dump['matching'], 'matching', dump)
+    assert_true(filter_.allow == dump['allow'], 'allow', dump)
+    # TODO: check memcg_path and memcg_id if type is memcg
+    if filter_.type_ == 'addr':
+        assert_true([filter_.addr_start, filter_.addr_end] ==
+                    dump['addr_range'], 'addr_range', dump)
+    elif filter_.type_ == 'target':
+        assert_true(filter_.target_idx == dump['target_idx'], 'target_idx',
+                    dump)
+    elif filter_.type_ == 'hugepage_size':
+        assert_true([filter_.min_, filter_.max_] == dump['sz_range'],
+                    'sz_range', dump)
+
+def assert_access_pattern_committed(pattern, dump):
+    assert_true(dump['min_sz_region'] == pattern.size[0], 'min_sz_region',
+                dump)
+    assert_true(dump['max_sz_region'] == pattern.size[1], 'max_sz_region',
+                dump)
+    assert_true(dump['min_nr_accesses'] == pattern.nr_accesses[0],
+                'min_nr_accesses', dump)
+    assert_true(dump['max_nr_accesses'] == pattern.nr_accesses[1],
+                'max_nr_accesses', dump)
+    assert_true(dump['min_age_region'] == pattern.age[0], 'min_age_region',
+                dump)
+    assert_true(dump['max_age_region'] == pattern.age[1], 'miaxage_region',
+                dump)
+
+def assert_scheme_committed(scheme, dump):
+    assert_access_pattern_committed(scheme.access_pattern, dump['pattern'])
+    action_val = {
+            'willneed': 0,
+            'cold': 1,
+            'pageout': 2,
+            'hugepage': 3,
+            'nohugeapge': 4,
+            'lru_prio': 5,
+            'lru_deprio': 6,
+            'migrate_hot': 7,
+            'migrate_cold': 8,
+            'stat': 9,
+            }
+    assert_true(dump['action'] == action_val[scheme.action], 'action', dump)
+    assert_true(dump['apply_interval_us'] == scheme. apply_interval_us,
+                'apply_interval_us', dump)
+    assert_true(dump['target_nid'] == scheme.target_nid, 'target_nid', dump)
+    assert_migrate_dests_committed(scheme.dests, dump['migrate_dests'])
+    assert_quota_committed(scheme.quota, dump['quota'])
+    assert_watermarks_committed(scheme.watermarks, dump['wmarks'])
+    # TODO: test filters directory
+    for idx, f in enumerate(scheme.core_filters.filters):
+        assert_filter_committed(f, dump['core_filters'][idx])
+    for idx, f in enumerate(scheme.ops_filters.filters):
+        assert_filter_committed(f, dump['ops_filters'][idx])
+
+def assert_schemes_committed(schemes, dump):
+    assert_true(len(schemes) == len(dump), 'len_schemes', dump)
+    for idx, scheme in enumerate(schemes):
+        assert_scheme_committed(scheme, dump[idx])
+
+def assert_monitoring_attrs_committed(attrs, dump):
+    assert_true(dump['sample_interval'] == attrs.sample_us, 'sample_interval',
+                dump)
+    assert_true(dump['aggr_interval'] == attrs.aggr_us, 'aggr_interval', dump)
+    assert_true(dump['intervals_goal']['access_bp'] ==
+                attrs.intervals_goal.access_bp, 'access_bp',
+                dump['intervals_goal'])
+    assert_true(dump['intervals_goal']['aggrs'] == attrs.intervals_goal.aggrs,
+                'aggrs', dump['intervals_goal'])
+    assert_true(dump['intervals_goal']['min_sample_us'] ==
+                attrs.intervals_goal.min_sample_us, 'min_sample_us',
+                dump['intervals_goal'])
+    assert_true(dump['intervals_goal']['max_sample_us'] ==
+                attrs.intervals_goal.max_sample_us, 'max_sample_us',
+                dump['intervals_goal'])
+
+    assert_true(dump['ops_update_interval'] == attrs.update_us,
+                'ops_update_interval', dump)
+    assert_true(dump['min_nr_regions'] == attrs.min_nr_regions,
+                'min_nr_regions', dump)
+    assert_true(dump['max_nr_regions'] == attrs.max_nr_regions,
+                'max_nr_regions', dump)
+
+def assert_monitoring_target_committed(target, dump):
+    # target.pid is the pid "number", while dump['pid'] is 'struct pid'
+    # pointer, and hence cannot be compared.
+    assert_true(dump['obsolete'] == target.obsolete, 'target obsolete', dump)
+
+def assert_monitoring_targets_committed(targets, dump):
+    assert_true(len(targets) == len(dump), 'len_targets', dump)
+    for idx, target in enumerate(targets):
+        assert_monitoring_target_committed(target, dump[idx])
+
+def assert_ctx_committed(ctx, dump):
+    ops_val = {
+            'vaddr': 0,
+            'fvaddr': 1,
+            'paddr': 2,
+            }
+    assert_true(dump['ops']['id'] == ops_val[ctx.ops], 'ops_id', dump)
+    assert_monitoring_attrs_committed(ctx.monitoring_attrs, dump['attrs'])
+    assert_monitoring_targets_committed(ctx.targets, dump['adaptive_targets'])
+    assert_schemes_committed(ctx.schemes, dump['schemes'])
+
+def assert_ctxs_committed(kdamonds):
+    status, err = dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+    if err is not None:
+        print(err)
+        kdamonds.stop()
+        exit(1)
+
+    ctxs = kdamonds.kdamonds[0].contexts
+    dump = status['contexts']
+    assert_true(len(ctxs) == len(dump), 'ctxs length', dump)
+    for idx, ctx in enumerate(ctxs):
+        assert_ctx_committed(ctx, dump[idx])
+
+def main():
+    kdamonds = _damon_sysfs.Kdamonds(
+            [_damon_sysfs.Kdamond(
+                contexts=[_damon_sysfs.DamonCtx(
+                    targets=[_damon_sysfs.DamonTarget(pid=-1)],
+                    schemes=[_damon_sysfs.Damos()],
+                    )])])
+    err = kdamonds.start()
+    if err is not None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    assert_ctxs_committed(kdamonds)
+
+    context = _damon_sysfs.DamonCtx(
+            monitoring_attrs=_damon_sysfs.DamonAttrs(
+                sample_us=100000, aggr_us=2000000,
+                intervals_goal=_damon_sysfs.IntervalsGoal(
+                    access_bp=400, aggrs=3, min_sample_us=5000,
+                    max_sample_us=10000000),
+                update_us=2000000),
+            schemes=[_damon_sysfs.Damos(
+                action='pageout',
+                access_pattern=_damon_sysfs.DamosAccessPattern(
+                    size=[4096, 2**10],
+                    nr_accesses=[3, 317],
+                    age=[5,71]),
+                quota=_damon_sysfs.DamosQuota(
+                    sz=100*1024*1024, ms=100,
+                    goals=[_damon_sysfs.DamosQuotaGoal(
+                        metric='node_mem_used_bp',
+                        target_value=9950,
+                        nid=1)],
+                    reset_interval_ms=1500,
+                    weight_sz_permil=20,
+                    weight_nr_accesses_permil=200,
+                    weight_age_permil=1000),
+                watermarks=_damon_sysfs.DamosWatermarks(
+                    metric = 'free_mem_rate', interval = 500000, # 500 ms
+                    high = 500, mid = 400, low = 50),
+                target_nid=1,
+                apply_interval_us=1000000,
+                dests=_damon_sysfs.DamosDests(
+                    dests=[_damon_sysfs.DamosDest(id=1, weight=30),
+                           _damon_sysfs.DamosDest(id=0, weight=70)]),
+                core_filters=[
+                    _damon_sysfs.DamosFilter(type_='addr', matching=True,
+                                             allow=False, addr_start=42,
+                                             addr_end=4242),
+                    ],
+                ops_filters=[
+                    _damon_sysfs.DamosFilter(type_='anon', matching=True,
+                                             allow=True),
+                    ],
+                )])
+    context.idx = 0
+    context.kdamond = kdamonds.kdamonds[0]
+    kdamonds.kdamonds[0].contexts = [context]
+    kdamonds.kdamonds[0].commit()
+
+    assert_ctxs_committed(kdamonds)
+
+    # test online commitment of minimum context.
+    context = _damon_sysfs.DamonCtx()
+    context.idx = 0
+    context.kdamond = kdamonds.kdamonds[0]
+    kdamonds.kdamonds[0].contexts = [context]
+    kdamonds.kdamonds[0].commit()
+
+    assert_ctxs_committed(kdamonds)
+
+    kdamonds.stop()
+
+    # test obsolete_target.
+    proc1 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    proc2 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    proc3 = subprocess.Popen(['sh'], stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+    kdamonds = _damon_sysfs.Kdamonds(
+            [_damon_sysfs.Kdamond(
+                contexts=[_damon_sysfs.DamonCtx(
+                    ops='vaddr',
+                    targets=[
+                        _damon_sysfs.DamonTarget(pid=proc1.pid),
+                        _damon_sysfs.DamonTarget(pid=proc2.pid),
+                        _damon_sysfs.DamonTarget(pid=proc3.pid),
+                        ],
+                    schemes=[_damon_sysfs.Damos()],
+                    )])])
+    err = kdamonds.start()
+    if err is not None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+    kdamonds.kdamonds[0].contexts[0].targets[1].obsolete = True
+    kdamonds.kdamonds[0].commit()
+    del kdamonds.kdamonds[0].contexts[0].targets[1]
+    assert_ctxs_committed(kdamonds)
+    kdamonds.stop()
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/sysfs.sh b/tools/testing/selftests/damon/sysfs.sh
new file mode 100755
index 000000000000..83e3b7f63d81
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs.sh
@@ -0,0 +1,370 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source _common.sh
+
+# Kselftest frmework requirement - SKIP code is 4.
+ksft_skip=4
+
+ensure_write_succ()
+{
+	file=$1
+	content=$2
+	reason=$3
+
+	if ! echo "$content" > "$file"
+	then
+		echo "writing $content to $file failed"
+		echo "expected success because $reason"
+		exit 1
+	fi
+}
+
+ensure_write_fail()
+{
+	file=$1
+	content=$2
+	reason=$3
+
+	if (echo "$content" > "$file") 2> /dev/null
+	then
+		echo "writing $content to $file succeed ($fail_reason)"
+		echo "expected failure because $reason"
+		exit 1
+	fi
+}
+
+ensure_dir()
+{
+	dir=$1
+	to_ensure=$2
+	if [ "$to_ensure" = "exist" ] && [ ! -d "$dir" ]
+	then
+		echo "$dir dir is expected but not found"
+		exit 1
+	elif [ "$to_ensure" = "not_exist" ] && [ -d "$dir" ]
+	then
+		echo "$dir dir is not expected but found"
+		exit 1
+	fi
+}
+
+ensure_file()
+{
+	file=$1
+	to_ensure=$2
+	permission=$3
+	if [ "$to_ensure" = "exist" ]
+	then
+		if [ ! -f "$file" ]
+		then
+			echo "$file is expected but not found"
+			exit 1
+		fi
+		perm=$(stat -c "%a" "$file")
+		if [ ! "$perm" = "$permission" ]
+		then
+			echo "$file permission: expected $permission but $perm"
+			exit 1
+		fi
+	elif [ "$to_ensure" = "not_exist" ] && [ -f "$dir" ]
+	then
+		echo "$file is not expected but found"
+		exit 1
+	fi
+}
+
+test_range()
+{
+	range_dir=$1
+	ensure_dir "$range_dir" "exist"
+	ensure_file "$range_dir/min" "exist" 600
+	ensure_file "$range_dir/max" "exist" 600
+}
+
+test_tried_regions()
+{
+	tried_regions_dir=$1
+	ensure_dir "$tried_regions_dir" "exist"
+	ensure_file "$tried_regions_dir/total_bytes" "exist" "400"
+}
+
+test_stats()
+{
+	stats_dir=$1
+	ensure_dir "$stats_dir" "exist"
+	for f in nr_tried sz_tried nr_applied sz_applied qt_exceeds
+	do
+		ensure_file "$stats_dir/$f" "exist" "400"
+	done
+}
+
+test_filter()
+{
+	filter_dir=$1
+	ensure_file "$filter_dir/type" "exist" "600"
+	ensure_write_succ "$filter_dir/type" "anon" "valid input"
+	ensure_write_succ "$filter_dir/type" "memcg" "valid input"
+	ensure_write_succ "$filter_dir/type" "addr" "valid input"
+	ensure_write_succ "$filter_dir/type" "target" "valid input"
+	ensure_write_fail "$filter_dir/type" "foo" "invalid input"
+	ensure_file "$filter_dir/matching" "exist" "600"
+	ensure_file "$filter_dir/memcg_path" "exist" "600"
+	ensure_file "$filter_dir/addr_start" "exist" "600"
+	ensure_file "$filter_dir/addr_end" "exist" "600"
+	ensure_file "$filter_dir/damon_target_idx" "exist" "600"
+}
+
+test_filters()
+{
+	filters_dir=$1
+	ensure_dir "$filters_dir" "exist"
+	ensure_file "$filters_dir/nr_filters" "exist" "600"
+	ensure_write_succ  "$filters_dir/nr_filters" "1" "valid input"
+	test_filter "$filters_dir/0"
+
+	ensure_write_succ  "$filters_dir/nr_filters" "2" "valid input"
+	test_filter "$filters_dir/0"
+	test_filter "$filters_dir/1"
+
+	ensure_write_succ "$filters_dir/nr_filters" "0" "valid input"
+	ensure_dir "$filters_dir/0" "not_exist"
+	ensure_dir "$filters_dir/1" "not_exist"
+}
+
+test_watermarks()
+{
+	watermarks_dir=$1
+	ensure_dir "$watermarks_dir" "exist"
+	ensure_file "$watermarks_dir/metric" "exist" "600"
+	ensure_file "$watermarks_dir/interval_us" "exist" "600"
+	ensure_file "$watermarks_dir/high" "exist" "600"
+	ensure_file "$watermarks_dir/mid" "exist" "600"
+	ensure_file "$watermarks_dir/low" "exist" "600"
+}
+
+test_weights()
+{
+	weights_dir=$1
+	ensure_dir "$weights_dir" "exist"
+	ensure_file "$weights_dir/sz_permil" "exist" "600"
+	ensure_file "$weights_dir/nr_accesses_permil" "exist" "600"
+	ensure_file "$weights_dir/age_permil" "exist" "600"
+}
+
+test_goal()
+{
+	goal_dir=$1
+	ensure_dir "$goal_dir" "exist"
+	ensure_file "$goal_dir/target_value" "exist" "600"
+	ensure_file "$goal_dir/current_value" "exist" "600"
+}
+
+test_goals()
+{
+	goals_dir=$1
+	ensure_dir "$goals_dir" "exist"
+	ensure_file "$goals_dir/nr_goals" "exist" "600"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "1" "valid input"
+	test_goal "$goals_dir/0"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "2" "valid input"
+	test_goal "$goals_dir/0"
+	test_goal "$goals_dir/1"
+
+	ensure_write_succ  "$goals_dir/nr_goals" "0" "valid input"
+	ensure_dir "$goals_dir/0" "not_exist"
+	ensure_dir "$goals_dir/1" "not_exist"
+}
+
+test_quotas()
+{
+	quotas_dir=$1
+	ensure_dir "$quotas_dir" "exist"
+	ensure_file "$quotas_dir/ms" "exist" 600
+	ensure_file "$quotas_dir/bytes" "exist" 600
+	ensure_file "$quotas_dir/reset_interval_ms" "exist" 600
+	test_weights "$quotas_dir/weights"
+	test_goals "$quotas_dir/goals"
+}
+
+test_access_pattern()
+{
+	access_pattern_dir=$1
+	ensure_dir "$access_pattern_dir" "exist"
+	test_range "$access_pattern_dir/age"
+	test_range "$access_pattern_dir/nr_accesses"
+	test_range "$access_pattern_dir/sz"
+}
+
+test_scheme()
+{
+	scheme_dir=$1
+	ensure_dir "$scheme_dir" "exist"
+	ensure_file "$scheme_dir/action" "exist" "600"
+	test_access_pattern "$scheme_dir/access_pattern"
+	ensure_file "$scheme_dir/apply_interval_us" "exist" "600"
+	test_quotas "$scheme_dir/quotas"
+	test_watermarks "$scheme_dir/watermarks"
+	test_filters "$scheme_dir/filters"
+	test_stats "$scheme_dir/stats"
+	test_tried_regions "$scheme_dir/tried_regions"
+}
+
+test_schemes()
+{
+	schemes_dir=$1
+	ensure_dir "$schemes_dir" "exist"
+	ensure_file "$schemes_dir/nr_schemes" "exist" 600
+
+	ensure_write_succ  "$schemes_dir/nr_schemes" "1" "valid input"
+	test_scheme "$schemes_dir/0"
+
+	ensure_write_succ  "$schemes_dir/nr_schemes" "2" "valid input"
+	test_scheme "$schemes_dir/0"
+	test_scheme "$schemes_dir/1"
+
+	ensure_write_succ "$schemes_dir/nr_schemes" "0" "valid input"
+	ensure_dir "$schemes_dir/0" "not_exist"
+	ensure_dir "$schemes_dir/1" "not_exist"
+}
+
+test_region()
+{
+	region_dir=$1
+	ensure_dir "$region_dir" "exist"
+	ensure_file "$region_dir/start" "exist" 600
+	ensure_file "$region_dir/end" "exist" 600
+}
+
+test_regions()
+{
+	regions_dir=$1
+	ensure_dir "$regions_dir" "exist"
+	ensure_file "$regions_dir/nr_regions" "exist" 600
+
+	ensure_write_succ  "$regions_dir/nr_regions" "1" "valid input"
+	test_region "$regions_dir/0"
+
+	ensure_write_succ  "$regions_dir/nr_regions" "2" "valid input"
+	test_region "$regions_dir/0"
+	test_region "$regions_dir/1"
+
+	ensure_write_succ "$regions_dir/nr_regions" "0" "valid input"
+	ensure_dir "$regions_dir/0" "not_exist"
+	ensure_dir "$regions_dir/1" "not_exist"
+}
+
+test_target()
+{
+	target_dir=$1
+	ensure_dir "$target_dir" "exist"
+	ensure_file "$target_dir/pid_target" "exist" "600"
+	test_regions "$target_dir/regions"
+}
+
+test_targets()
+{
+	targets_dir=$1
+	ensure_dir "$targets_dir" "exist"
+	ensure_file "$targets_dir/nr_targets" "exist" 600
+
+	ensure_write_succ  "$targets_dir/nr_targets" "1" "valid input"
+	test_target "$targets_dir/0"
+
+	ensure_write_succ  "$targets_dir/nr_targets" "2" "valid input"
+	test_target "$targets_dir/0"
+	test_target "$targets_dir/1"
+
+	ensure_write_succ "$targets_dir/nr_targets" "0" "valid input"
+	ensure_dir "$targets_dir/0" "not_exist"
+	ensure_dir "$targets_dir/1" "not_exist"
+}
+
+test_intervals()
+{
+	intervals_dir=$1
+	ensure_dir "$intervals_dir" "exist"
+	ensure_file "$intervals_dir/aggr_us" "exist" "600"
+	ensure_file "$intervals_dir/sample_us" "exist" "600"
+	ensure_file "$intervals_dir/update_us" "exist" "600"
+}
+
+test_monitoring_attrs()
+{
+	monitoring_attrs_dir=$1
+	ensure_dir "$monitoring_attrs_dir" "exist"
+	test_intervals "$monitoring_attrs_dir/intervals"
+	test_range "$monitoring_attrs_dir/nr_regions"
+}
+
+test_context()
+{
+	context_dir=$1
+	ensure_dir "$context_dir" "exist"
+	ensure_file "$context_dir/avail_operations" "exit" 400
+	ensure_file "$context_dir/operations" "exist" 600
+	test_monitoring_attrs "$context_dir/monitoring_attrs"
+	test_targets "$context_dir/targets"
+	test_schemes "$context_dir/schemes"
+}
+
+test_contexts()
+{
+	contexts_dir=$1
+	ensure_dir "$contexts_dir" "exist"
+	ensure_file "$contexts_dir/nr_contexts" "exist" 600
+
+	ensure_write_succ  "$contexts_dir/nr_contexts" "1" "valid input"
+	test_context "$contexts_dir/0"
+
+	ensure_write_fail "$contexts_dir/nr_contexts" "2" "only 0/1 are supported"
+	test_context "$contexts_dir/0"
+
+	ensure_write_succ "$contexts_dir/nr_contexts" "0" "valid input"
+	ensure_dir "$contexts_dir/0" "not_exist"
+}
+
+test_kdamond()
+{
+	kdamond_dir=$1
+	ensure_dir "$kdamond_dir" "exist"
+	ensure_file "$kdamond_dir/state" "exist" "600"
+	ensure_file "$kdamond_dir/pid" "exist" 400
+	test_contexts "$kdamond_dir/contexts"
+}
+
+test_kdamonds()
+{
+	kdamonds_dir=$1
+	ensure_dir "$kdamonds_dir" "exist"
+
+	ensure_file "$kdamonds_dir/nr_kdamonds" "exist" "600"
+
+	ensure_write_succ  "$kdamonds_dir/nr_kdamonds" "1" "valid input"
+	test_kdamond "$kdamonds_dir/0"
+
+	ensure_write_succ  "$kdamonds_dir/nr_kdamonds" "2" "valid input"
+	test_kdamond "$kdamonds_dir/0"
+	test_kdamond "$kdamonds_dir/1"
+
+	ensure_write_succ "$kdamonds_dir/nr_kdamonds" "0" "valid input"
+	ensure_dir "$kdamonds_dir/0" "not_exist"
+	ensure_dir "$kdamonds_dir/1" "not_exist"
+}
+
+test_damon_sysfs()
+{
+	damon_sysfs=$1
+	if [ ! -d "$damon_sysfs" ]
+	then
+		echo "$damon_sysfs not found"
+		exit $ksft_skip
+	fi
+
+	test_kdamonds "$damon_sysfs/kdamonds"
+}
+
+check_dependencies
+test_damon_sysfs "/sys/kernel/mm/damon/admin"
diff --git a/tools/testing/selftests/damon/sysfs_memcg_path_leak.sh b/tools/testing/selftests/damon/sysfs_memcg_path_leak.sh
new file mode 100755
index 000000000000..64c5d8c518a4
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs_memcg_path_leak.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+if [ $EUID -ne 0 ]
+then
+	echo "Run as root"
+	exit $ksft_skip
+fi
+
+damon_sysfs="/sys/kernel/mm/damon/admin"
+if [ ! -d "$damon_sysfs" ]
+then
+	echo "damon sysfs not found"
+	exit $ksft_skip
+fi
+
+# ensure filter directory
+echo 1 > "$damon_sysfs/kdamonds/nr_kdamonds"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/nr_contexts"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/nr_schemes"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/0/filters/nr_filters"
+
+filter_dir="$damon_sysfs/kdamonds/0/contexts/0/schemes/0/filters/0"
+
+before_kb=$(grep Slab /proc/meminfo | awk '{print $2}')
+
+# try to leak 3000 KiB
+for i in {1..102400};
+do
+	echo "012345678901234567890123456789" > "$filter_dir/memcg_path"
+done
+
+after_kb=$(grep Slab /proc/meminfo | awk '{print $2}')
+# expect up to 1500 KiB free from other tasks memory
+expected_after_kb_max=$((before_kb + 1500))
+
+if [ "$after_kb" -gt "$expected_after_kb_max" ]
+then
+	echo "maybe memcg_path are leaking: $before_kb -> $after_kb"
+	exit 1
+else
+	exit 0
+fi
diff --git a/tools/testing/selftests/damon/sysfs_no_op_commit_break.py b/tools/testing/selftests/damon/sysfs_no_op_commit_break.py
new file mode 100755
index 000000000000..2c65cffe6b54
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs_no_op_commit_break.py
@@ -0,0 +1,72 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import json
+import os
+import subprocess
+import sys
+
+import _damon_sysfs
+
+def dump_damon_status_dict(pid):
+    try:
+        subprocess.check_output(['which', 'drgn'], stderr=subprocess.DEVNULL)
+    except:
+        return None, 'drgn not found'
+    file_dir = os.path.dirname(os.path.abspath(__file__))
+    dump_script = os.path.join(file_dir, 'drgn_dump_damon_status.py')
+    rc = subprocess.call(['drgn', dump_script, pid, 'damon_dump_output'],
+        stderr=subprocess.DEVNULL)
+
+    if rc != 0:
+        return None, f'drgn fail: return code({rc})'
+    try:
+        with open('damon_dump_output', 'r') as f:
+            return json.load(f), None
+    except Exception as e:
+        return None, 'json.load fail (%s)' % e
+
+def main():
+    kdamonds = _damon_sysfs.Kdamonds(
+        [_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                schemes=[_damon_sysfs.Damos(
+                    ops_filters=[
+                        _damon_sysfs.DamosFilter(
+                            type_='anon',
+                            matching=True,
+                            allow=True,
+                        )
+                    ]
+                )],
+            )])]
+    )
+
+    err = kdamonds.start()
+    if err is not None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    before_commit_status, err = \
+        dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+    if err is not None:
+        print('before-commit status dump failed: %s' % err)
+        exit(1)
+
+    kdamonds.kdamonds[0].commit()
+
+    after_commit_status, err = \
+        dump_damon_status_dict(kdamonds.kdamonds[0].pid)
+    if err is not None:
+        print('after-commit status dump failed: %s' % err)
+        exit(1)
+
+    if before_commit_status != after_commit_status:
+        print(f'before: {json.dumps(before_commit_status, indent=2)}')
+        print(f'after: {json.dumps(after_commit_status, indent=2)}')
+        exit(1)
+
+    kdamonds.stop()
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh b/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh
new file mode 100755
index 000000000000..35fc32beeaf7
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source _common.sh
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_dependencies
+
+damon_sysfs="/sys/kernel/mm/damon/admin"
+if [ ! -d "$damon_sysfs" ]
+then
+	echo "damon sysfs not found"
+	exit $ksft_skip
+fi
+
+# clear log
+dmesg -C
+
+# start DAMON with a scheme
+echo 1 > "$damon_sysfs/kdamonds/nr_kdamonds"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/nr_contexts"
+echo "vaddr" > "$damon_sysfs/kdamonds/0/contexts/0/operations"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/targets/nr_targets"
+echo $$ > "$damon_sysfs/kdamonds/0/contexts/0/targets/0/pid_target"
+echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/nr_schemes"
+scheme_dir="$damon_sysfs/kdamonds/0/contexts/0/schemes/0"
+echo 4096000 > "$scheme_dir/access_pattern/sz/max"
+echo 20 > "$scheme_dir/access_pattern/nr_accesses/max"
+echo 1024 > "$scheme_dir/access_pattern/age/max"
+echo "on" > "$damon_sysfs/kdamonds/0/state"
+sleep 0.3
+
+# remove scheme sysfs dir
+echo 0 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/nr_schemes"
+
+# try to update stat of already removed scheme sysfs dir
+echo "update_schemes_stats" > "$damon_sysfs/kdamonds/0/state"
+if dmesg | grep -q BUG
+then
+	echo "update_schemes_stats triggers a kernel bug"
+	dmesg
+	exit 1
+fi
+
+# try to update tried regions of already removed scheme sysfs dir
+echo "update_schemes_tried_regions" > "$damon_sysfs/kdamonds/0/state"
+if dmesg | grep -q BUG
+then
+	echo "update_schemes_tried_regions triggers a kernel bug"
+	dmesg
+	exit 1
+fi
+
+echo "off" > "$damon_sysfs/kdamonds/0/state"
diff --git a/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_hang.py b/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_hang.py
new file mode 100755
index 000000000000..28c887a0108f
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_hang.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    proc = subprocess.Popen(['sleep', '2'])
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(
+                    access_pattern=_damon_sysfs.DamosAccessPattern(
+                        nr_accesses=[200, 200]))] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err != None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    while proc.poll() == None:
+        err = kdamonds.kdamonds[0].update_schemes_tried_bytes()
+        if err != None:
+            print('tried bytes update failed: %s' % err)
+            exit(1)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_wss_estimation.py b/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_wss_estimation.py
new file mode 100755
index 000000000000..90ad7409a7a6
--- /dev/null
+++ b/tools/testing/selftests/damon/sysfs_update_schemes_tried_regions_wss_estimation.py
@@ -0,0 +1,55 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import time
+
+import _damon_sysfs
+
+def main():
+    # access two 10 MiB memory regions, 2 second per each
+    sz_region = 10 * 1024 * 1024
+    proc = subprocess.Popen(['./access_memory', '2', '%d' % sz_region, '2000'])
+    kdamonds = _damon_sysfs.Kdamonds([_damon_sysfs.Kdamond(
+            contexts=[_damon_sysfs.DamonCtx(
+                ops='vaddr',
+                targets=[_damon_sysfs.DamonTarget(pid=proc.pid)],
+                schemes=[_damon_sysfs.Damos(
+                    access_pattern=_damon_sysfs.DamosAccessPattern(
+                        # >= 25% access rate, >= 200ms age
+                        nr_accesses=[5, 20], age=[2, 2**64 - 1]))] # schemes
+                )] # contexts
+            )]) # kdamonds
+
+    err = kdamonds.start()
+    if err != None:
+        print('kdamond start failed: %s' % err)
+        exit(1)
+
+    wss_collected = []
+    while proc.poll() == None:
+        time.sleep(0.1)
+        err = kdamonds.kdamonds[0].update_schemes_tried_bytes()
+        if err != None:
+            print('tried bytes update failed: %s' % err)
+            exit(1)
+
+        wss_collected.append(
+                kdamonds.kdamonds[0].contexts[0].schemes[0].tried_bytes)
+
+    wss_collected.sort()
+    acceptable_error_rate = 0.2
+    for percentile in [50, 75]:
+        sample = wss_collected[int(len(wss_collected) * percentile / 100)]
+        error_rate = abs(sample - sz_region) / sz_region
+        print('%d-th percentile (%d) error %f' %
+                (percentile, sample, error_rate))
+        if error_rate > acceptable_error_rate:
+            print('the error rate is not acceptable (> %f)' %
+                    acceptable_error_rate)
+            print('samples are as below')
+            print('\n'.join(['%d' % wss for wss in wss_collected]))
+            exit(1)
+
+if __name__ == '__main__':
+    main()
diff --git a/tools/testing/selftests/devices/error_logs/Makefile b/tools/testing/selftests/devices/error_logs/Makefile
new file mode 100644
index 000000000000..d546c3fb0a7f
--- /dev/null
+++ b/tools/testing/selftests/devices/error_logs/Makefile
@@ -0,0 +1,3 @@
+TEST_PROGS := test_device_error_logs.py
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/devices/error_logs/test_device_error_logs.py b/tools/testing/selftests/devices/error_logs/test_device_error_logs.py
new file mode 100755
index 000000000000..3dd56c8ec92c
--- /dev/null
+++ b/tools/testing/selftests/devices/error_logs/test_device_error_logs.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2024 Collabora Ltd
+#
+# This test checks for the presence of error (or more critical) log messages
+# coming from devices in the kernel log.
+#
+# One failed test case is reported for each device that has outputted error
+# logs. Devices with no errors do not produce a passing test case to avoid
+# polluting the results, therefore a successful run will list 0 tests run.
+#
+
+import glob
+import os
+import re
+import sys
+
+# Allow ksft module to be imported from different directory
+this_dir = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(this_dir, "../../kselftest/"))
+
+import ksft
+
+kmsg = "/dev/kmsg"
+
+RE_log = re.compile(
+    r"(?P<prefix>[0-9]+),(?P<sequence>[0-9]+),(?P<timestamp>[0-9]+),(?P<flag>[^;]*)(,[^;]*)*;(?P<message>.*)"
+)
+RE_tag = re.compile(r" (?P<key>[^=]+)=(?P<value>.*)")
+
+PREFIX_ERROR = 3
+
+logs = []
+error_log_per_device = {}
+
+
+def parse_kmsg():
+    current_log = {}
+
+    with open(kmsg) as f:
+        os.set_blocking(f.fileno(), False)
+
+        for line in f:
+            tag_line = RE_tag.match(line)
+            log_line = RE_log.match(line)
+
+            if log_line:
+                if current_log:
+                    logs.append(current_log)  # Save last log
+
+                current_log = {
+                    "prefix": int(log_line.group("prefix")),
+                    "sequence": int(log_line.group("sequence")),
+                    "timestamp": int(log_line.group("timestamp")),
+                    "flag": log_line.group("flag"),
+                    "message": log_line.group("message"),
+                }
+            elif tag_line:
+                current_log[tag_line.group("key")] = tag_line.group("value")
+
+
+def generate_per_device_error_log():
+    for log in logs:
+        if log.get("DEVICE") and log["prefix"] <= PREFIX_ERROR:
+            if not error_log_per_device.get(log["DEVICE"]):
+                error_log_per_device[log["DEVICE"]] = []
+            error_log_per_device[log["DEVICE"]].append(log)
+
+
+parse_kmsg()
+
+generate_per_device_error_log()
+num_tests = len(error_log_per_device)
+
+ksft.print_header()
+ksft.set_plan(num_tests)
+
+for device in error_log_per_device:
+    for log in error_log_per_device[device]:
+        ksft.print_msg(log["message"])
+    ksft.test_result_fail(device)
+if num_tests == 0:
+    ksft.print_msg("No device error logs found")
+ksft.finished()
diff --git a/tools/testing/selftests/devices/probe/Makefile b/tools/testing/selftests/devices/probe/Makefile
new file mode 100644
index 000000000000..f630108c3fdf
--- /dev/null
+++ b/tools/testing/selftests/devices/probe/Makefile
@@ -0,0 +1,4 @@
+TEST_PROGS := test_discoverable_devices.py
+TEST_FILES := boards
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/devices/probe/boards/Dell Inc.,XPS 13 9300.yaml b/tools/testing/selftests/devices/probe/boards/Dell Inc.,XPS 13 9300.yaml
new file mode 100644
index 000000000000..ff932eb19f0b
--- /dev/null
+++ b/tools/testing/selftests/devices/probe/boards/Dell Inc.,XPS 13 9300.yaml
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# This is the device definition for the XPS 13 9300.
+# The filename "Dell Inc.,XPS 13 9300" was chosen following the format
+# "Vendor,Product", where Vendor comes from
+# /sys/devices/virtual/dmi/id/sys_vendor, and Product comes from
+# /sys/devices/virtual/dmi/id/product_name.
+#
+# See google,spherion.yaml for more information.
+#
+- type: pci-controller
+  # This machine has a single PCI host controller so it's valid to not have any
+  # key to identify the controller. If it had more than one controller, the UID
+  # of the controller from ACPI could be used to distinguish as follows:
+  #acpi-uid: 0
+  devices:
+    - path: 14.0
+      type: usb-controller
+      usb-version: 2
+      devices:
+        - path: 9
+          name: camera
+          interfaces: [0, 1, 2, 3]
+        - path: 10
+          name: bluetooth
+          interfaces: [0, 1]
+    - path: 2.0
+      name: gpu
+    - path: 4.0
+      name: thermal
+    - path: 12.0
+      name: sensors
+    - path: 14.3
+      name: wifi
+    - path: 1d.0/0.0
+      name: ssd
+    - path: 1d.7/0.0
+      name: sdcard-reader
+    - path: 1f.3
+      name: audio
diff --git a/tools/testing/selftests/devices/probe/boards/google,spherion.yaml b/tools/testing/selftests/devices/probe/boards/google,spherion.yaml
new file mode 100644
index 000000000000..3ea843324797
--- /dev/null
+++ b/tools/testing/selftests/devices/probe/boards/google,spherion.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# This is the device definition for the Google Spherion Chromebook.
+# The filename "google,spherion" comes from the Devicetree compatible, so this
+# file will be automatically used when the test is run on that machine.
+#
+# The top-level is a list of controllers, either for USB or PCI(e).
+# Every controller needs to have a 'type' key set to either 'usb-controller' or
+# 'pci-controller'.
+# Every controller needs to be uniquely identified on the platform. To achieve
+# this, several optional keys can be used:
+# - dt-mmio: identify the MMIO address of the controller as defined in the
+#   Devicetree.
+# - of-fullname-regex: regular expression to match against the OF_FULLNAME
+#   property. Useful when the controller's address is not unique across other
+#   sibling controllers. In this case, dt-mmio can't be used, and this property
+#   allows the matching to include parent nodes as well to make it unique.
+# - usb-version: for USB controllers to differentiate between USB3 and USB2
+#   buses sharing the same controller.
+# - acpi-uid: _UID property of the controller as supplied by the ACPI. Useful to
+#   distinguish between multiple PCI host controllers.
+#
+# The 'devices' key defines a list of devices that are accessible under that
+# controller. A device might be a leaf device or another controller (see
+# 'Dell Inc.,XPS 13 9300.yaml').
+#
+# The 'path' key is needed for every child device (that is, not top-level) to
+# define how to reach this device from the parent controller. For USB devices it
+# follows the format \d(.\d)* and denotes the port in the hub at each level in
+# the USB topology. For PCI devices it follows the format \d.\d(/\d.\d)*
+# denoting the device (identified by device-function pair) at each level in the
+# PCI topology.
+#
+# The 'name' key is used in the leaf devices to name the device for clarity in
+# the test output.
+#
+# For USB leaf devices, the 'interfaces' key should contain a list of the
+# interfaces in that device that should be bound to a driver.
+#
+- type: usb-controller
+  dt-mmio: 11200000
+  usb-version: 2
+  devices:
+    - path: 1.4.1
+      interfaces: [0, 1]
+      name: camera
+    - path: 1.4.2
+      interfaces: [0, 1]
+      name: bluetooth
+- type: pci-controller
+  dt-mmio: 11230000
+  devices:
+    - path: 0.0/0.0
+      name: wifi
diff --git a/tools/testing/selftests/devices/probe/test_discoverable_devices.py b/tools/testing/selftests/devices/probe/test_discoverable_devices.py
new file mode 100755
index 000000000000..d7a2bb91c807
--- /dev/null
+++ b/tools/testing/selftests/devices/probe/test_discoverable_devices.py
@@ -0,0 +1,358 @@
+#!/usr/bin/python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2023 Collabora Ltd
+#
+# This script tests for presence and driver binding of devices from discoverable
+# buses (ie USB, PCI).
+#
+# The per-platform YAML file defining the devices to be tested is stored inside
+# the boards/ directory and chosen based on DT compatible or DMI IDs (sys_vendor
+# and product_name).
+#
+# See boards/google,spherion.yaml and boards/'Dell Inc.,XPS 13 9300.yaml' for
+# the description and examples of the file structure and vocabulary.
+#
+
+import argparse
+import glob
+import os
+import re
+import sys
+import yaml
+
+# Allow ksft module to be imported from different directory
+this_dir = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(this_dir, "../../kselftest/"))
+
+import ksft
+
+pci_controllers = []
+usb_controllers = []
+
+sysfs_usb_devices = "/sys/bus/usb/devices/"
+
+
+def find_pci_controller_dirs():
+    sysfs_devices = "/sys/devices"
+    pci_controller_sysfs_dir = "pci[0-9a-f]{4}:[0-9a-f]{2}"
+
+    dir_regex = re.compile(pci_controller_sysfs_dir)
+    for path, dirs, _ in os.walk(sysfs_devices):
+        for d in dirs:
+            if dir_regex.match(d):
+                pci_controllers.append(os.path.join(path, d))
+
+
+def find_usb_controller_dirs():
+    usb_controller_sysfs_dir = r"usb[\d]+"
+
+    dir_regex = re.compile(usb_controller_sysfs_dir)
+    for d in os.scandir(sysfs_usb_devices):
+        if dir_regex.match(d.name):
+            usb_controllers.append(os.path.realpath(d.path))
+
+
+def get_dt_mmio(sysfs_dev_dir):
+    re_dt_mmio = re.compile("OF_FULLNAME=.*@([0-9a-f]+)")
+    dt_mmio = None
+
+    # PCI controllers' sysfs don't have an of_node, so have to read it from the
+    # parent
+    while not dt_mmio:
+        try:
+            with open(os.path.join(sysfs_dev_dir, "uevent")) as f:
+                dt_mmio = re_dt_mmio.search(f.read()).group(1)
+                return dt_mmio
+        except:
+            pass
+        sysfs_dev_dir = os.path.dirname(sysfs_dev_dir)
+
+
+def get_of_fullname(sysfs_dev_dir):
+    re_of_fullname = re.compile("OF_FULLNAME=(.*)")
+    of_full_name = None
+
+    # PCI controllers' sysfs don't have an of_node, so have to read it from the
+    # parent
+    while not of_full_name:
+        try:
+            with open(os.path.join(sysfs_dev_dir, "uevent")) as f:
+                of_fullname = re_of_fullname.search(f.read()).group(1)
+                return of_fullname
+        except:
+            pass
+        sysfs_dev_dir = os.path.dirname(sysfs_dev_dir)
+
+
+def get_acpi_uid(sysfs_dev_dir):
+    with open(os.path.join(sysfs_dev_dir, "firmware_node", "uid")) as f:
+        return f.read()
+
+
+def get_usb_version(sysfs_dev_dir):
+    re_usb_version = re.compile(r"PRODUCT=.*/(\d)/.*")
+    with open(os.path.join(sysfs_dev_dir, "uevent")) as f:
+        return int(re_usb_version.search(f.read()).group(1))
+
+
+def get_usb_busnum(sysfs_dev_dir):
+    re_busnum = re.compile("BUSNUM=(.*)")
+    with open(os.path.join(sysfs_dev_dir, "uevent")) as f:
+        return int(re_busnum.search(f.read()).group(1))
+
+
+def find_controller_in_sysfs(controller, parent_sysfs=None):
+    if controller["type"] == "pci-controller":
+        controllers = pci_controllers
+    elif controller["type"] == "usb-controller":
+        controllers = usb_controllers
+
+    result_controllers = []
+
+    for c in controllers:
+        if parent_sysfs and parent_sysfs not in c:
+            continue
+
+        if controller.get("dt-mmio"):
+            if str(controller["dt-mmio"]) != get_dt_mmio(c):
+                continue
+
+        if controller.get("of-fullname-regex"):
+            re_of_fullname = re.compile(str(controller["of-fullname-regex"]))
+            if not re_of_fullname.match(get_of_fullname(c)):
+                continue
+
+        if controller.get("usb-version"):
+            if controller["usb-version"] != get_usb_version(c):
+                continue
+
+        if controller.get("acpi-uid"):
+            if controller["acpi-uid"] != get_acpi_uid(c):
+                continue
+
+        result_controllers.append(c)
+
+    return result_controllers
+
+
+def is_controller(device):
+    return device.get("type") and "controller" in device.get("type")
+
+
+def path_to_dir(parent_sysfs, dev_type, path):
+    if dev_type == "usb-device":
+        usb_dev_sysfs_fmt = "{}-{}"
+        busnum = get_usb_busnum(parent_sysfs)
+        dirname = os.path.join(
+            sysfs_usb_devices, usb_dev_sysfs_fmt.format(busnum, path)
+        )
+        return [os.path.realpath(dirname)]
+    else:
+        pci_dev_sysfs_fmt = "????:??:{}"
+        path_glob = ""
+        for dev_func in path.split("/"):
+            dev_func = dev_func.zfill(4)
+            path_glob = os.path.join(path_glob, pci_dev_sysfs_fmt.format(dev_func))
+
+        dir_list = glob.glob(os.path.join(parent_sysfs, path_glob))
+
+        return dir_list
+
+
+def find_in_sysfs(device, parent_sysfs=None):
+    if parent_sysfs and device.get("path"):
+        pathdirs = path_to_dir(
+            parent_sysfs, device["meta"]["type"], str(device["path"])
+        )
+        if len(pathdirs) != 1:
+            # Early return to report error
+            return pathdirs
+        pathdir = pathdirs[0]
+        sysfs_path = os.path.join(parent_sysfs, pathdir)
+    else:
+        sysfs_path = parent_sysfs
+
+    if is_controller(device):
+        return find_controller_in_sysfs(device, sysfs_path)
+    else:
+        return [sysfs_path]
+
+
+def check_driver_presence(sysfs_dir, current_node):
+    if current_node["meta"]["type"] == "usb-device":
+        usb_intf_fmt = "*-*:*.{}"
+
+        interfaces = []
+        for i in current_node["interfaces"]:
+            interfaces.append((i, usb_intf_fmt.format(i)))
+
+        for intf_num, intf_dir_fmt in interfaces:
+            test_name = f"{current_node['meta']['pathname']}.{intf_num}.driver"
+
+            intf_dirs = glob.glob(os.path.join(sysfs_dir, intf_dir_fmt))
+            if len(intf_dirs) != 1:
+                ksft.test_result_fail(test_name)
+                continue
+            intf_dir = intf_dirs[0]
+
+            driver_link = os.path.join(sysfs_dir, intf_dir, "driver")
+            ksft.test_result(os.path.isdir(driver_link), test_name)
+    else:
+        driver_link = os.path.join(sysfs_dir, "driver")
+        test_name = current_node["meta"]["pathname"] + ".driver"
+        ksft.test_result(os.path.isdir(driver_link), test_name)
+
+
+def generate_pathname(device):
+    pathname = ""
+
+    if device.get("path"):
+        pathname = str(device["path"])
+
+    if device.get("type"):
+        dev_type = device["type"]
+        if device.get("usb-version"):
+            dev_type = dev_type.replace("usb", "usb" + str(device["usb-version"]))
+        if device.get("acpi-uid") is not None:
+            dev_type = dev_type.replace("pci", "pci" + str(device["acpi-uid"]))
+        pathname = pathname + "/" + dev_type
+
+    if device.get("dt-mmio"):
+        pathname += "@" + str(device["dt-mmio"])
+
+    if device.get("of-fullname-regex"):
+        pathname += "-" + str(device["of-fullname-regex"])
+
+    if device.get("name"):
+        pathname = pathname + "/" + device["name"]
+
+    return pathname
+
+
+def fill_meta_keys(child, parent=None):
+    child["meta"] = {}
+
+    if parent:
+        child["meta"]["type"] = parent["type"].replace("controller", "device")
+
+    pathname = generate_pathname(child)
+    if parent:
+        pathname = parent["meta"]["pathname"] + "/" + pathname
+    child["meta"]["pathname"] = pathname
+
+
+def parse_device_tree_node(current_node, parent_sysfs=None):
+    if not parent_sysfs:
+        fill_meta_keys(current_node)
+
+    sysfs_dirs = find_in_sysfs(current_node, parent_sysfs)
+    if len(sysfs_dirs) != 1:
+        if len(sysfs_dirs) == 0:
+            ksft.test_result_fail(
+                f"Couldn't find in sysfs: {current_node['meta']['pathname']}"
+            )
+        else:
+            ksft.test_result_fail(
+                f"Found multiple sysfs entries for {current_node['meta']['pathname']}: {sysfs_dirs}"
+            )
+        return
+    sysfs_dir = sysfs_dirs[0]
+
+    if not is_controller(current_node):
+        ksft.test_result(
+            os.path.exists(sysfs_dir), current_node["meta"]["pathname"] + ".device"
+        )
+        check_driver_presence(sysfs_dir, current_node)
+    else:
+        for child_device in current_node["devices"]:
+            fill_meta_keys(child_device, current_node)
+            parse_device_tree_node(child_device, sysfs_dir)
+
+
+def count_tests(device_trees):
+    test_count = 0
+
+    def parse_node(device):
+        nonlocal test_count
+        if device.get("devices"):
+            for child in device["devices"]:
+                parse_node(child)
+        else:
+            if device.get("interfaces"):
+                test_count += len(device["interfaces"])
+            else:
+                test_count += 1
+            test_count += 1
+
+    for device_tree in device_trees:
+        parse_node(device_tree)
+
+    return test_count
+
+
+def get_board_filenames():
+    filenames = []
+
+    platform_compatible_file = "/proc/device-tree/compatible"
+    if os.path.exists(platform_compatible_file):
+        with open(platform_compatible_file) as f:
+            for line in f:
+                filenames.extend(line.split("\0"))
+    else:
+        dmi_id_dir = "/sys/devices/virtual/dmi/id"
+        vendor_dmi_file = os.path.join(dmi_id_dir, "sys_vendor")
+        product_dmi_file = os.path.join(dmi_id_dir, "product_name")
+
+        with open(vendor_dmi_file) as f:
+            vendor = f.read().replace("\n", "")
+        with open(product_dmi_file) as f:
+            product = f.read().replace("\n", "")
+
+        filenames = [vendor + "," + product]
+
+    return filenames
+
+
+def run_test(yaml_file):
+    ksft.print_msg(f"Using board file: {yaml_file}")
+
+    with open(yaml_file) as f:
+        device_trees = yaml.safe_load(f)
+
+    ksft.set_plan(count_tests(device_trees))
+
+    for device_tree in device_trees:
+        parse_device_tree_node(device_tree)
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument(
+    "--boards-dir", default="boards", help="Directory containing the board YAML files"
+)
+args = parser.parse_args()
+
+find_pci_controller_dirs()
+find_usb_controller_dirs()
+
+ksft.print_header()
+
+if not os.path.exists(args.boards_dir):
+    ksft.print_msg(f"Boards directory '{args.boards_dir}' doesn't exist")
+    ksft.exit_fail()
+
+board_file = ""
+for board_filename in get_board_filenames():
+    full_board_filename = os.path.join(args.boards_dir, board_filename + ".yaml")
+
+    if os.path.exists(full_board_filename):
+        board_file = full_board_filename
+        break
+
+if not board_file:
+    ksft.print_msg("No matching board file found")
+    ksft.exit_fail()
+
+run_test(board_file)
+
+ksft.finished()
diff --git a/tools/testing/selftests/dmabuf-heaps/.gitignore b/tools/testing/selftests/dmabuf-heaps/.gitignore
new file mode 100644
index 000000000000..b500e76b9045
--- /dev/null
+++ b/tools/testing/selftests/dmabuf-heaps/.gitignore
@@ -0,0 +1 @@
+dmabuf-heap
diff --git a/tools/testing/selftests/dmabuf-heaps/Makefile b/tools/testing/selftests/dmabuf-heaps/Makefile
new file mode 100644
index 000000000000..9e7e158d5fa3
--- /dev/null
+++ b/tools/testing/selftests/dmabuf-heaps/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -static -O3 -Wl,-no-as-needed -Wall $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS = dmabuf-heap
+
+include ../lib.mk
diff --git a/tools/testing/selftests/dmabuf-heaps/config b/tools/testing/selftests/dmabuf-heaps/config
new file mode 100644
index 000000000000..be091f1cdfa0
--- /dev/null
+++ b/tools/testing/selftests/dmabuf-heaps/config
@@ -0,0 +1,3 @@
+CONFIG_DMABUF_HEAPS=y
+CONFIG_DMABUF_HEAPS_SYSTEM=y
+CONFIG_DRM_VGEM=y
diff --git a/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
new file mode 100644
index 000000000000..fc9694fc4e89
--- /dev/null
+++ b/tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c
@@ -0,0 +1,442 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <linux/dma-buf.h>
+#include <linux/dma-heap.h>
+#include <drm/drm.h>
+#include "kselftest.h"
+
+#define DEVPATH "/dev/dma_heap"
+
+static int check_vgem(int fd)
+{
+	drm_version_t version = { 0 };
+	char name[5];
+	int ret;
+
+	version.name_len = 4;
+	version.name = name;
+
+	ret = ioctl(fd, DRM_IOCTL_VERSION, &version);
+	if (ret || version.name_len != 4)
+		return 0;
+
+	name[4] = '\0';
+
+	return !strcmp(name, "vgem");
+}
+
+static int open_vgem(void)
+{
+	int i, fd;
+	const char *drmstr = "/dev/dri/card";
+
+	fd = -1;
+	for (i = 0; i < 16; i++) {
+		char name[80];
+
+		snprintf(name, 80, "%s%u", drmstr, i);
+
+		fd = open(name, O_RDWR);
+		if (fd < 0)
+			continue;
+
+		if (!check_vgem(fd)) {
+			close(fd);
+			fd = -1;
+			continue;
+		} else {
+			break;
+		}
+	}
+	return fd;
+}
+
+static int import_vgem_fd(int vgem_fd, int dma_buf_fd, uint32_t *handle)
+{
+	struct drm_prime_handle import_handle = {
+		.fd = dma_buf_fd,
+		.flags = 0,
+		.handle = 0,
+	 };
+	int ret;
+
+	ret = ioctl(vgem_fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &import_handle);
+	if (ret == 0)
+		*handle = import_handle.handle;
+	return ret;
+}
+
+static void close_handle(int vgem_fd, uint32_t handle)
+{
+	struct drm_gem_close close = {
+		.handle = handle,
+	};
+
+	ioctl(vgem_fd, DRM_IOCTL_GEM_CLOSE, &close);
+}
+
+static int dmabuf_heap_open(char *name)
+{
+	int ret, fd;
+	char buf[256];
+
+	ret = snprintf(buf, 256, "%s/%s", DEVPATH, name);
+	if (ret < 0)
+		ksft_exit_fail_msg("snprintf failed! %d\n", ret);
+
+	fd = open(buf, O_RDWR);
+	if (fd < 0)
+		ksft_exit_fail_msg("open %s failed: %s\n", buf, strerror(errno));
+
+	return fd;
+}
+
+static int dmabuf_heap_alloc_fdflags(int fd, size_t len, unsigned int fd_flags,
+				     unsigned int heap_flags, int *dmabuf_fd)
+{
+	struct dma_heap_allocation_data data = {
+		.len = len,
+		.fd = 0,
+		.fd_flags = fd_flags,
+		.heap_flags = heap_flags,
+	};
+	int ret;
+
+	if (!dmabuf_fd)
+		return -EINVAL;
+
+	ret = ioctl(fd, DMA_HEAP_IOCTL_ALLOC, &data);
+	if (ret < 0)
+		return ret;
+	*dmabuf_fd = (int)data.fd;
+	return ret;
+}
+
+static int dmabuf_heap_alloc(int fd, size_t len, unsigned int flags,
+			     int *dmabuf_fd)
+{
+	return dmabuf_heap_alloc_fdflags(fd, len, O_RDWR | O_CLOEXEC, flags,
+					 dmabuf_fd);
+}
+
+static int dmabuf_sync(int fd, int start_stop)
+{
+	struct dma_buf_sync sync = {
+		.flags = start_stop | DMA_BUF_SYNC_RW,
+	};
+
+	return ioctl(fd, DMA_BUF_IOCTL_SYNC, &sync);
+}
+
+#define ONE_MEG (1024 * 1024)
+
+static void test_alloc_and_import(char *heap_name)
+{
+	int heap_fd = -1, dmabuf_fd = -1, importer_fd = -1;
+	uint32_t handle = 0;
+	void *p = NULL;
+	int ret;
+
+	heap_fd = dmabuf_heap_open(heap_name);
+
+	ksft_print_msg("Testing allocation and importing:\n");
+	ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0, &dmabuf_fd);
+	if (ret) {
+		ksft_test_result_fail("FAIL (Allocation Failed!) %d\n", ret);
+		return;
+	}
+
+	/* mmap and write a simple pattern */
+	p = mmap(NULL, ONE_MEG, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd, 0);
+	if (p == MAP_FAILED) {
+		ksft_test_result_fail("FAIL (mmap() failed): %s\n", strerror(errno));
+		goto close_and_return;
+	}
+
+	dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START);
+	memset(p, 1, ONE_MEG / 2);
+	memset((char *)p + ONE_MEG / 2, 0, ONE_MEG / 2);
+	dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END);
+
+	importer_fd = open_vgem();
+	if (importer_fd < 0) {
+		ksft_test_result_skip("Could not open vgem %d\n", importer_fd);
+	} else {
+		ret = import_vgem_fd(importer_fd, dmabuf_fd, &handle);
+		ksft_test_result(ret >= 0, "Import buffer %d\n", ret);
+	}
+
+	ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_START);
+	if (ret < 0) {
+		ksft_print_msg("FAIL (DMA_BUF_SYNC_START failed!) %d\n", ret);
+		goto out;
+	}
+
+	memset(p, 0xff, ONE_MEG);
+	ret = dmabuf_sync(dmabuf_fd, DMA_BUF_SYNC_END);
+	if (ret < 0) {
+		ksft_print_msg("FAIL (DMA_BUF_SYNC_END failed!) %d\n", ret);
+		goto out;
+	}
+
+	close_handle(importer_fd, handle);
+	ksft_test_result_pass("%s dmabuf sync succeeded\n", __func__);
+	return;
+
+out:
+	ksft_test_result_fail("%s dmabuf sync failed\n", __func__);
+	munmap(p, ONE_MEG);
+	close(importer_fd);
+
+close_and_return:
+	close(dmabuf_fd);
+	close(heap_fd);
+}
+
+static void test_alloc_zeroed(char *heap_name, size_t size)
+{
+	int heap_fd = -1, dmabuf_fd[32];
+	int i, j, k, ret;
+	void *p = NULL;
+	char *c;
+
+	ksft_print_msg("Testing alloced %ldk buffers are zeroed:\n", size / 1024);
+	heap_fd = dmabuf_heap_open(heap_name);
+
+	/* Allocate and fill a bunch of buffers */
+	for (i = 0; i < 32; i++) {
+		ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
+		if (ret) {
+			ksft_test_result_fail("FAIL (Allocation (%i) failed) %d\n", i, ret);
+			goto close_and_return;
+		}
+
+		/* mmap and fill with simple pattern */
+		p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
+		if (p == MAP_FAILED) {
+			ksft_test_result_fail("FAIL (mmap() failed!): %s\n", strerror(errno));
+			goto close_and_return;
+		}
+
+		dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_START);
+		memset(p, 0xff, size);
+		dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_END);
+		munmap(p, size);
+	}
+	/* close them all */
+	for (i = 0; i < 32; i++)
+		close(dmabuf_fd[i]);
+	ksft_test_result_pass("Allocate and fill a bunch of buffers\n");
+
+	/* Allocate and validate all buffers are zeroed */
+	for (i = 0; i < 32; i++) {
+		ret = dmabuf_heap_alloc(heap_fd, size, 0, &dmabuf_fd[i]);
+		if (ret < 0) {
+			ksft_test_result_fail("FAIL (Allocation (%i) failed) %d\n", i, ret);
+			goto close_and_return;
+		}
+
+		/* mmap and validate everything is zero */
+		p = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, dmabuf_fd[i], 0);
+		if (p == MAP_FAILED) {
+			ksft_test_result_fail("FAIL (mmap() failed!): %s\n", strerror(errno));
+			goto close_and_return;
+		}
+
+		dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_START);
+		c = (char *)p;
+		for (j = 0; j < size; j++) {
+			if (c[j] != 0) {
+				ksft_print_msg("FAIL (Allocated buffer not zeroed @ %i)\n", j);
+				dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_END);
+				munmap(p, size);
+				goto out;
+			}
+		}
+		dmabuf_sync(dmabuf_fd[i], DMA_BUF_SYNC_END);
+		munmap(p, size);
+	}
+
+out:
+	ksft_test_result(i == 32, "Allocate and validate all buffers are zeroed\n");
+
+close_and_return:
+	/* close them all */
+	for (k = 0; k < i; k++)
+		close(dmabuf_fd[k]);
+
+	close(heap_fd);
+	return;
+}
+
+/* Test the ioctl version compatibility w/ a smaller structure then expected */
+static int dmabuf_heap_alloc_older(int fd, size_t len, unsigned int flags,
+				   int *dmabuf_fd)
+{
+	int ret;
+	unsigned int older_alloc_ioctl;
+	struct dma_heap_allocation_data_smaller {
+		__u64 len;
+		__u32 fd;
+		__u32 fd_flags;
+	} data = {
+		.len = len,
+		.fd = 0,
+		.fd_flags = O_RDWR | O_CLOEXEC,
+	};
+
+	older_alloc_ioctl = _IOWR(DMA_HEAP_IOC_MAGIC, 0x0,
+				  struct dma_heap_allocation_data_smaller);
+	if (!dmabuf_fd)
+		return -EINVAL;
+
+	ret = ioctl(fd, older_alloc_ioctl, &data);
+	if (ret < 0)
+		return ret;
+	*dmabuf_fd = (int)data.fd;
+	return ret;
+}
+
+/* Test the ioctl version compatibility w/ a larger structure then expected */
+static int dmabuf_heap_alloc_newer(int fd, size_t len, unsigned int flags,
+				   int *dmabuf_fd)
+{
+	int ret;
+	unsigned int newer_alloc_ioctl;
+	struct dma_heap_allocation_data_bigger {
+		__u64 len;
+		__u32 fd;
+		__u32 fd_flags;
+		__u64 heap_flags;
+		__u64 garbage1;
+		__u64 garbage2;
+		__u64 garbage3;
+	} data = {
+		.len = len,
+		.fd = 0,
+		.fd_flags = O_RDWR | O_CLOEXEC,
+		.heap_flags = flags,
+		.garbage1 = 0xffffffff,
+		.garbage2 = 0x88888888,
+		.garbage3 = 0x11111111,
+	};
+
+	newer_alloc_ioctl = _IOWR(DMA_HEAP_IOC_MAGIC, 0x0,
+				  struct dma_heap_allocation_data_bigger);
+	if (!dmabuf_fd)
+		return -EINVAL;
+
+	ret = ioctl(fd, newer_alloc_ioctl, &data);
+	if (ret < 0)
+		return ret;
+
+	*dmabuf_fd = (int)data.fd;
+	return ret;
+}
+
+static void test_alloc_compat(char *heap_name)
+{
+	int ret, heap_fd = -1, dmabuf_fd = -1;
+
+	heap_fd = dmabuf_heap_open(heap_name);
+
+	ksft_print_msg("Testing (theoretical) older alloc compat:\n");
+	ret = dmabuf_heap_alloc_older(heap_fd, ONE_MEG, 0, &dmabuf_fd);
+	if (dmabuf_fd >= 0)
+		close(dmabuf_fd);
+	ksft_test_result(!ret, "dmabuf_heap_alloc_older\n");
+
+	ksft_print_msg("Testing (theoretical) newer alloc compat:\n");
+	ret = dmabuf_heap_alloc_newer(heap_fd, ONE_MEG, 0, &dmabuf_fd);
+	if (dmabuf_fd >= 0)
+		close(dmabuf_fd);
+	ksft_test_result(!ret, "dmabuf_heap_alloc_newer\n");
+
+	close(heap_fd);
+}
+
+static void test_alloc_errors(char *heap_name)
+{
+	int heap_fd = -1, dmabuf_fd = -1;
+	int ret;
+
+	heap_fd = dmabuf_heap_open(heap_name);
+
+	ksft_print_msg("Testing expected error cases:\n");
+	ret = dmabuf_heap_alloc(0, ONE_MEG, 0x111111, &dmabuf_fd);
+	ksft_test_result(ret, "Error expected on invalid fd %d\n", ret);
+
+	ret = dmabuf_heap_alloc(heap_fd, ONE_MEG, 0x111111, &dmabuf_fd);
+	ksft_test_result(ret, "Error expected on invalid heap flags %d\n", ret);
+
+	ret = dmabuf_heap_alloc_fdflags(heap_fd, ONE_MEG,
+					~(O_RDWR | O_CLOEXEC), 0, &dmabuf_fd);
+	ksft_test_result(ret, "Error expected on invalid heap flags %d\n", ret);
+
+	if (dmabuf_fd >= 0)
+		close(dmabuf_fd);
+	close(heap_fd);
+}
+
+static int numer_of_heaps(void)
+{
+	DIR *d = opendir(DEVPATH);
+	struct dirent *dir;
+	int heaps = 0;
+
+	while ((dir = readdir(d))) {
+		if (!strncmp(dir->d_name, ".", 2))
+			continue;
+		if (!strncmp(dir->d_name, "..", 3))
+			continue;
+		heaps++;
+	}
+
+	return heaps;
+}
+
+int main(void)
+{
+	struct dirent *dir;
+	DIR *d;
+
+	ksft_print_header();
+
+	d = opendir(DEVPATH);
+	if (!d) {
+		ksft_print_msg("No %s directory?\n", DEVPATH);
+		return KSFT_SKIP;
+	}
+
+	ksft_set_plan(11 * numer_of_heaps());
+
+	while ((dir = readdir(d))) {
+		if (!strncmp(dir->d_name, ".", 2))
+			continue;
+		if (!strncmp(dir->d_name, "..", 3))
+			continue;
+
+		ksft_print_msg("Testing heap: %s\n", dir->d_name);
+		ksft_print_msg("=======================================\n");
+		test_alloc_and_import(dir->d_name);
+		test_alloc_zeroed(dir->d_name, 4 * 1024);
+		test_alloc_zeroed(dir->d_name, ONE_MEG);
+		test_alloc_compat(dir->d_name);
+		test_alloc_errors(dir->d_name);
+	}
+	closedir(d);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/drivers/.gitignore b/tools/testing/selftests/drivers/.gitignore
new file mode 100644
index 000000000000..09e23b5afa96
--- /dev/null
+++ b/tools/testing/selftests/drivers/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/dma-buf/udmabuf
+/s390x/uvdevice/test_uvdevice
diff --git a/tools/testing/selftests/drivers/dma-buf/Makefile b/tools/testing/selftests/drivers/dma-buf/Makefile
new file mode 100644
index 000000000000..441407bb0e80
--- /dev/null
+++ b/tools/testing/selftests/drivers/dma-buf/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := udmabuf
+
+top_srcdir ?=../../../../..
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/drivers/dma-buf/config b/tools/testing/selftests/drivers/dma-buf/config
new file mode 100644
index 000000000000..d708515cff1b
--- /dev/null
+++ b/tools/testing/selftests/drivers/dma-buf/config
@@ -0,0 +1 @@
+CONFIG_UDMABUF=y
diff --git a/tools/testing/selftests/drivers/dma-buf/udmabuf.c b/tools/testing/selftests/drivers/dma-buf/udmabuf.c
new file mode 100644
index 000000000000..d78aec662586
--- /dev/null
+++ b/tools/testing/selftests/drivers/dma-buf/udmabuf.c
@@ -0,0 +1,277 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __EXPORTED_HEADERS__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <stdbool.h>
+
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#include <linux/memfd.h>
+#include <linux/udmabuf.h>
+#include "kselftest.h"
+
+#define TEST_PREFIX	"drivers/dma-buf/udmabuf"
+#define NUM_PAGES       4
+#define NUM_ENTRIES     4
+#define MEMFD_SIZE      1024 /* in pages */
+
+static unsigned int page_size;
+
+static int create_memfd_with_seals(off64_t size, bool hpage)
+{
+	int memfd, ret;
+	unsigned int flags = MFD_ALLOW_SEALING;
+
+	if (hpage)
+		flags |= MFD_HUGETLB;
+
+	memfd = memfd_create("udmabuf-test", flags);
+	if (memfd < 0) {
+		ksft_print_msg("%s: [skip,no-memfd]\n", TEST_PREFIX);
+		exit(KSFT_SKIP);
+	}
+
+	ret = fcntl(memfd, F_ADD_SEALS, F_SEAL_SHRINK);
+	if (ret < 0) {
+		ksft_print_msg("%s: [skip,fcntl-add-seals]\n", TEST_PREFIX);
+		exit(KSFT_SKIP);
+	}
+
+	ret = ftruncate(memfd, size);
+	if (ret == -1) {
+		ksft_print_msg("%s: [FAIL,memfd-truncate]\n", TEST_PREFIX);
+		exit(KSFT_FAIL);
+	}
+
+	return memfd;
+}
+
+static int create_udmabuf_list(int devfd, int memfd, off64_t memfd_size)
+{
+	struct udmabuf_create_list *list;
+	int ubuf_fd, i;
+
+	list = malloc(sizeof(struct udmabuf_create_list) +
+		      sizeof(struct udmabuf_create_item) * NUM_ENTRIES);
+	if (!list) {
+		ksft_print_msg("%s: [FAIL, udmabuf-malloc]\n", TEST_PREFIX);
+		exit(KSFT_FAIL);
+	}
+
+	for (i = 0; i < NUM_ENTRIES; i++) {
+		list->list[i].memfd  = memfd;
+		list->list[i].offset = i * (memfd_size / NUM_ENTRIES);
+		list->list[i].size   = getpagesize() * NUM_PAGES;
+	}
+
+	list->count = NUM_ENTRIES;
+	list->flags = UDMABUF_FLAGS_CLOEXEC;
+	ubuf_fd = ioctl(devfd, UDMABUF_CREATE_LIST, list);
+	free(list);
+	if (ubuf_fd < 0) {
+		ksft_print_msg("%s: [FAIL, udmabuf-create]\n", TEST_PREFIX);
+		exit(KSFT_FAIL);
+	}
+
+	return ubuf_fd;
+}
+
+static void write_to_memfd(void *addr, off64_t size, char chr)
+{
+	int i;
+
+	for (i = 0; i < size / page_size; i++) {
+		*((char *)addr + (i * page_size)) = chr;
+	}
+}
+
+static void *mmap_fd(int fd, off64_t size)
+{
+	void *addr;
+
+	addr = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+	if (addr == MAP_FAILED) {
+		ksft_print_msg("%s: ubuf_fd mmap fail\n", TEST_PREFIX);
+		exit(KSFT_FAIL);
+	}
+
+	return addr;
+}
+
+static int compare_chunks(void *addr1, void *addr2, off64_t memfd_size)
+{
+	off64_t off;
+	int i = 0, j, k = 0, ret = 0;
+	char char1, char2;
+
+	while (i < NUM_ENTRIES) {
+		off = i * (memfd_size / NUM_ENTRIES);
+		for (j = 0; j < NUM_PAGES; j++, k++) {
+			char1 = *((char *)addr1 + off + (j * getpagesize()));
+			char2 = *((char *)addr2 + (k * getpagesize()));
+			if (char1 != char2) {
+				ret = -1;
+				goto err;
+			}
+		}
+		i++;
+	}
+err:
+	munmap(addr1, memfd_size);
+	munmap(addr2, NUM_ENTRIES * NUM_PAGES * getpagesize());
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	struct udmabuf_create create;
+	int devfd, memfd, buf, ret;
+	off64_t size;
+	void *addr1, *addr2;
+
+	ksft_print_header();
+	ksft_set_plan(7);
+
+	devfd = open("/dev/udmabuf", O_RDWR);
+	if (devfd < 0) {
+		ksft_print_msg(
+			"%s: [skip,no-udmabuf: Unable to access DMA buffer device file]\n",
+			TEST_PREFIX);
+		exit(KSFT_SKIP);
+	}
+
+	memfd = memfd_create("udmabuf-test", MFD_ALLOW_SEALING);
+	if (memfd < 0) {
+		ksft_print_msg("%s: [skip,no-memfd]\n", TEST_PREFIX);
+		exit(KSFT_SKIP);
+	}
+
+	ret = fcntl(memfd, F_ADD_SEALS, F_SEAL_SHRINK);
+	if (ret < 0) {
+		ksft_print_msg("%s: [skip,fcntl-add-seals]\n", TEST_PREFIX);
+		exit(KSFT_SKIP);
+	}
+
+	size = getpagesize() * NUM_PAGES;
+	ret = ftruncate(memfd, size);
+	if (ret == -1) {
+		ksft_print_msg("%s: [FAIL,memfd-truncate]\n", TEST_PREFIX);
+		exit(KSFT_FAIL);
+	}
+
+	memset(&create, 0, sizeof(create));
+
+	/* should fail (offset not page aligned) */
+	create.memfd  = memfd;
+	create.offset = getpagesize()/2;
+	create.size   = getpagesize();
+	buf = ioctl(devfd, UDMABUF_CREATE, &create);
+	if (buf >= 0)
+		ksft_test_result_fail("%s: [FAIL,test-1]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-1]\n", TEST_PREFIX);
+
+	/* should fail (size not multiple of page) */
+	create.memfd  = memfd;
+	create.offset = 0;
+	create.size   = getpagesize()/2;
+	buf = ioctl(devfd, UDMABUF_CREATE, &create);
+	if (buf >= 0)
+		ksft_test_result_fail("%s: [FAIL,test-2]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-2]\n", TEST_PREFIX);
+
+	/* should fail (not memfd) */
+	create.memfd  = 0; /* stdin */
+	create.offset = 0;
+	create.size   = size;
+	buf = ioctl(devfd, UDMABUF_CREATE, &create);
+	if (buf >= 0)
+		ksft_test_result_fail("%s: [FAIL,test-3]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-3]\n", TEST_PREFIX);
+
+	/* should work */
+	page_size = getpagesize();
+	addr1 = mmap_fd(memfd, size);
+	write_to_memfd(addr1, size, 'a');
+	create.memfd  = memfd;
+	create.offset = 0;
+	create.size   = size;
+	buf = ioctl(devfd, UDMABUF_CREATE, &create);
+	if (buf < 0)
+		ksft_test_result_fail("%s: [FAIL,test-4]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-4]\n", TEST_PREFIX);
+
+	munmap(addr1, size);
+	close(buf);
+	close(memfd);
+
+	/* should work (migration of 4k size pages)*/
+	size = MEMFD_SIZE * page_size;
+	memfd = create_memfd_with_seals(size, false);
+	addr1 = mmap_fd(memfd, size);
+	write_to_memfd(addr1, size, 'a');
+	buf = create_udmabuf_list(devfd, memfd, size);
+	addr2 = mmap_fd(buf, NUM_PAGES * NUM_ENTRIES * getpagesize());
+	write_to_memfd(addr1, size, 'b');
+	ret = compare_chunks(addr1, addr2, size);
+	if (ret < 0)
+		ksft_test_result_fail("%s: [FAIL,test-5]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-5]\n", TEST_PREFIX);
+
+	close(buf);
+	close(memfd);
+
+	/* should work (migration of 2MB size huge pages)*/
+	page_size = getpagesize() * 512; /* 2 MB */
+	size = MEMFD_SIZE * page_size;
+	memfd = create_memfd_with_seals(size, true);
+	addr1 = mmap_fd(memfd, size);
+	write_to_memfd(addr1, size, 'a');
+	buf = create_udmabuf_list(devfd, memfd, size);
+	addr2 = mmap_fd(buf, NUM_PAGES * NUM_ENTRIES * getpagesize());
+	write_to_memfd(addr1, size, 'b');
+	ret = compare_chunks(addr1, addr2, size);
+	if (ret < 0)
+		ksft_test_result_fail("%s: [FAIL,test-6]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-6]\n", TEST_PREFIX);
+
+	close(buf);
+	close(memfd);
+
+	/* same test as above but we pin first before writing to memfd */
+	page_size = getpagesize() * 512; /* 2 MB */
+	size = MEMFD_SIZE * page_size;
+	memfd = create_memfd_with_seals(size, true);
+	buf = create_udmabuf_list(devfd, memfd, size);
+	addr2 = mmap_fd(buf, NUM_PAGES * NUM_ENTRIES * getpagesize());
+	addr1 = mmap_fd(memfd, size);
+	write_to_memfd(addr1, size, 'a');
+	write_to_memfd(addr1, size, 'b');
+	ret = compare_chunks(addr1, addr2, size);
+	if (ret < 0)
+		ksft_test_result_fail("%s: [FAIL,test-7]\n", TEST_PREFIX);
+	else
+		ksft_test_result_pass("%s: [PASS,test-7]\n", TEST_PREFIX);
+
+	close(buf);
+	close(memfd);
+	close(devfd);
+
+	ksft_print_msg("%s: ok\n", TEST_PREFIX);
+	ksft_print_cnts();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/drivers/gpu/drm_mm.sh b/tools/testing/selftests/drivers/gpu/drm_mm.sh
new file mode 100755
index 000000000000..09c76cd7661d
--- /dev/null
+++ b/tools/testing/selftests/drivers/gpu/drm_mm.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs API tests for struct drm_mm (DRM range manager)
+
+if ! /sbin/modprobe -n -q test-drm_mm; then
+       echo "drivers/gpu/drm_mm: module test-drm_mm is not found in /lib/modules/`uname -r` [skip]"
+       exit 77
+fi
+
+if /sbin/modprobe -q test-drm_mm; then
+       /sbin/modprobe -q -r test-drm_mm
+       echo "drivers/gpu/drm_mm: ok"
+else
+       echo "drivers/gpu/drm_mm: module test-drm_mm could not be removed [FAIL]"
+       exit 1
+fi
diff --git a/tools/testing/selftests/drivers/gpu/i915.sh b/tools/testing/selftests/drivers/gpu/i915.sh
new file mode 100755
index 000000000000..d3895bc714b7
--- /dev/null
+++ b/tools/testing/selftests/drivers/gpu/i915.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs hardware independent tests for i915 (drivers/gpu/drm/i915)
+
+if ! /sbin/modprobe -q -r i915; then
+	echo "drivers/gpu/i915: [SKIP]"
+	exit 77
+fi
+
+if /sbin/modprobe -q i915 mock_selftests=-1; then
+	/sbin/modprobe -q -r i915
+	echo "drivers/gpu/i915: ok"
+else
+	echo "drivers/gpu/i915: [FAIL]"
+	exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/.gitignore b/tools/testing/selftests/drivers/net/.gitignore
new file mode 100644
index 000000000000..3633c7a3ed65
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+gro
+napi_id_helper
+psp_responder
diff --git a/tools/testing/selftests/drivers/net/Makefile b/tools/testing/selftests/drivers/net/Makefile
new file mode 100644
index 000000000000..f5c71d993750
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/Makefile
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += $(KHDR_INCLUDES)
+
+TEST_INCLUDES := $(wildcard lib/py/*.py) \
+		 $(wildcard lib/sh/*.sh) \
+		 ../../net/lib.sh \
+
+TEST_GEN_FILES := \
+	gro \
+	napi_id_helper \
+# end of TEST_GEN_FILES
+
+TEST_PROGS := \
+	gro.py \
+	hds.py \
+	napi_id.py \
+	napi_threaded.py \
+	netcons_basic.sh \
+	netcons_cmdline.sh \
+	netcons_fragmented_msg.sh \
+	netcons_overflow.sh \
+	netcons_sysdata.sh \
+	netcons_torture.sh \
+	netpoll_basic.py \
+	ping.py \
+	psp.py \
+	queues.py \
+	ring_reconfig.py \
+	shaper.py \
+	stats.py \
+	xdp.py \
+# end of TEST_PROGS
+
+# YNL files, must be before "include ..lib.mk"
+YNL_GEN_FILES := psp_responder
+TEST_GEN_FILES += $(YNL_GEN_FILES)
+
+include ../../lib.mk
+
+# YNL build
+YNL_GENS := psp
+
+include ../../net/ynl.mk
diff --git a/tools/testing/selftests/drivers/net/README.rst b/tools/testing/selftests/drivers/net/README.rst
new file mode 100644
index 000000000000..eb838ae94844
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/README.rst
@@ -0,0 +1,136 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Running driver tests
+====================
+
+Networking driver tests are executed within kselftest framework like any
+other tests. They support testing both real device drivers and emulated /
+software drivers (latter mostly to test the core parts of the stack).
+
+SW mode
+~~~~~~~
+
+By default, when no extra parameters are set or exported, tests execute
+against software drivers such as netdevsim. No extra preparation is required
+the software devices are created and destroyed as part of the test.
+In this mode the tests are indistinguishable from other selftests and
+(for example) can be run under ``virtme-ng`` like the core networking selftests.
+
+HW mode
+~~~~~~~
+
+Executing tests against a real device requires external preparation.
+The netdevice against which tests will be run must exist, be running
+(in UP state) and be configured with an IP address.
+
+Refer to list of :ref:`Variables` later in this file to set up running
+the tests against a real device.
+
+Both modes required
+~~~~~~~~~~~~~~~~~~~
+
+All tests in drivers/net must support running both against a software device
+and a real device. SW-only tests should instead be placed in net/ or
+drivers/net/netdevsim, HW-only tests in drivers/net/hw.
+
+Variables
+=========
+
+The variables can be set in the environment or by creating a net.config
+file in the same directory as this README file. Example::
+
+  $ NETIF=eth0 ./some_test.sh
+
+or::
+
+  $ cat tools/testing/selftests/drivers/net/net.config
+  # Variable set in a file
+  NETIF=eth0
+
+Local test (which don't require endpoint for sending / receiving traffic)
+need only the ``NETIF`` variable. Remaining variables define the endpoint
+and communication method.
+
+NETIF
+~~~~~
+
+Name of the netdevice against which the test should be executed.
+When empty or not set software devices will be used.
+
+LOCAL_V4, LOCAL_V6, REMOTE_V4, REMOTE_V6
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Local and remote endpoint IP addresses.
+
+REMOTE_TYPE
+~~~~~~~~~~~
+
+Communication method used to run commands on the remote endpoint.
+Test framework has built-in support for ``netns`` and ``ssh`` channels.
+``netns`` assumes the "remote" interface is part of the same
+host, just moved to the specified netns.
+``ssh`` communicates with remote endpoint over ``ssh`` and ``scp``.
+Using persistent SSH connections is strongly encouraged to avoid
+the latency of SSH connection setup on every command.
+
+Communication methods are defined by classes in ``lib/py/remote_{name}.py``.
+It should be possible to add a new method without modifying any of
+the framework, by simply adding an appropriately named file to ``lib/py``.
+
+REMOTE_ARGS
+~~~~~~~~~~~
+
+Arguments used to construct the communication channel.
+Communication channel dependent::
+
+  for netns - name of the "remote" namespace
+  for ssh - name/address of the remote host
+
+Example
+=======
+
+Build the selftests::
+
+  # make -C tools/testing/selftests/ TARGETS="drivers/net drivers/net/hw"
+
+"Install" the tests and copy them over to the target machine::
+
+  # make -C tools/testing/selftests/ TARGETS="drivers/net drivers/net/hw" \
+     install INSTALL_PATH=/tmp/ksft-net-drv
+
+  # rsync -ra --delete /tmp/ksft-net-drv root@192.168.1.1:/root/
+
+On the target machine, running the tests will use netdevsim by default::
+
+  [/root] # ./ksft-net-drv/run_kselftest.sh -t drivers/net:ping.py
+  TAP version 13
+  1..1
+  # timeout set to 45
+  # selftests: drivers/net: ping.py
+  # TAP version 13
+  # 1..3
+  # ok 1 ping.test_v4
+  # ok 2 ping.test_v6
+  # ok 3 ping.test_tcp
+  # # Totals: pass:3 fail:0 xfail:0 xpass:0 skip:0 error:0
+  ok 1 selftests: drivers/net: ping.py
+
+Create a config with remote info::
+
+  [/root] # cat > ./ksft-net-drv/drivers/net/net.config <<EOF
+  NETIF=eth0
+  LOCAL_V4=192.168.1.1
+  REMOTE_V4=192.168.1.2
+  REMOTE_TYPE=ssh
+  REMOTE_ARGS=root@192.168.1.2
+  EOF
+
+Run the test::
+
+  [/root] # ./ksft-net-drv/drivers/net/ping.py
+  TAP version 13
+  1..3
+  ok 1 ping.test_v4
+  ok 2 ping.test_v6 # SKIP Test requires IPv6 connectivity
+  ok 3 ping.test_tcp
+  # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:1 error:0
diff --git a/tools/testing/selftests/drivers/net/bonding/Makefile b/tools/testing/selftests/drivers/net/bonding/Makefile
new file mode 100644
index 000000000000..6c5c60adb5e8
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/Makefile
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for net selftests
+
+TEST_PROGS := \
+	bond-arp-interval-causes-panic.sh \
+	bond-break-lacpdu-tx.sh \
+	bond-eth-type-change.sh \
+	bond-lladdr-target.sh \
+	bond_ipsec_offload.sh \
+	bond_lacp_prio.sh \
+	bond_macvlan_ipvlan.sh \
+	bond_options.sh \
+	bond_passive_lacp.sh \
+	dev_addr_lists.sh \
+	mode-1-recovery-updelay.sh \
+	mode-2-recovery-updelay.sh \
+	netcons_over_bonding.sh \
+# end of TEST_PROGS
+
+TEST_FILES := \
+	bond_topo_2d1c.sh \
+	bond_topo_3d1c.sh \
+	lag_lib.sh \
+# end of TEST_FILES
+
+TEST_INCLUDES := \
+	../../../net/lib.sh \
+	../lib/sh/lib_netcons.sh \
+	../../../net/forwarding/lib.sh \
+# end of TEST_INCLUDES
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-arp-interval-causes-panic.sh b/tools/testing/selftests/drivers/net/bonding/bond-arp-interval-causes-panic.sh
new file mode 100755
index 000000000000..5667febee328
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-arp-interval-causes-panic.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# cause kernel oops in bond_rr_gen_slave_id
+DEBUG=${DEBUG:-0}
+
+set -e
+test ${DEBUG} -ne 0 && set -x
+
+finish()
+{
+	ip netns delete server || true
+	ip netns delete client || true
+}
+
+trap finish EXIT
+
+client_ip4=192.168.1.198
+server_ip4=192.168.1.254
+
+# setup kernel so it reboots after causing the panic
+echo 180 >/proc/sys/kernel/panic
+
+# build namespaces
+ip netns add "server"
+ip netns add "client"
+ip -n client link add eth0 type veth peer name eth0 netns server
+ip netns exec server ip link set dev eth0 up
+ip netns exec server ip addr add ${server_ip4}/24 dev eth0
+
+ip netns exec client ip link add dev bond0 down type bond mode 1 \
+	miimon 100 all_slaves_active 1
+ip netns exec client ip link set dev eth0 master bond0
+ip netns exec client ip link set dev bond0 up
+ip netns exec client ip addr add ${client_ip4}/24 dev bond0
+ip netns exec client ping -c 5 $server_ip4 >/dev/null
+
+ip netns exec client ip link set dev eth0 nomaster
+ip netns exec client ip link set dev bond0 down
+ip netns exec client ip link set dev bond0 type bond mode 0 \
+	arp_interval 1000 arp_ip_target "+${server_ip4}"
+ip netns exec client ip link set dev eth0 master bond0
+ip netns exec client ip link set dev bond0 up
+ip netns exec client ping -c 5 $server_ip4 >/dev/null
+
+exit 0
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh b/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh
new file mode 100755
index 000000000000..1ec7f59db7f4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-break-lacpdu-tx.sh
@@ -0,0 +1,80 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Regression Test:
+#   Verify LACPDUs get transmitted after setting the MAC address of
+#   the bond.
+#
+# https://bugzilla.redhat.com/show_bug.cgi?id=2020773
+#
+#       +---------+
+#       | fab-br0 |
+#       +---------+
+#            |
+#       +---------+
+#       |  fbond  |
+#       +---------+
+#        |       |
+#    +------+ +------+
+#    |veth1 | |veth2 |
+#    +------+ +------+
+#
+# We use veths instead of physical interfaces
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+set -e
+cleanup() {
+	ip link del fab-br0 >/dev/null 2>&1 || :
+	ip link del fbond  >/dev/null 2>&1 || :
+	ip link del veth1-bond  >/dev/null 2>&1 || :
+	ip link del veth2-bond  >/dev/null 2>&1 || :
+}
+
+trap cleanup 0 1 2
+cleanup
+
+# create the bridge
+ip link add fab-br0 address 52:54:00:3B:7C:A6 mtu 1500 type bridge \
+	forward_delay 15
+
+# create the bond
+ip link add fbond type bond mode 4 miimon 200 xmit_hash_policy 1 \
+	ad_actor_sys_prio 65535 lacp_rate fast
+
+# set bond address
+ip link set fbond address 52:54:00:3B:7C:A6
+ip link set fbond up
+
+# set again bond sysfs parameters
+ip link set fbond type bond ad_actor_sys_prio 65535
+
+# create veths
+ip link add name veth1-bond type veth peer name veth1-end
+ip link add name veth2-bond type veth peer name veth2-end
+
+# add ports
+ip link set fbond master fab-br0
+ip link set veth1-bond master fbond
+ip link set veth2-bond master fbond
+
+# bring up
+ip link set veth1-end up
+ip link set veth2-end up
+ip link set fab-br0 up
+ip link set fbond up
+ip addr add dev fab-br0 10.0.0.3
+
+rc=0
+tc qdisc add dev veth1-end clsact
+tc filter add dev veth1-end ingress protocol 0x8809 pref 1 handle 101 flower skip_hw action pass
+if slowwait_for_counter 15 2 \
+	tc_rule_handle_stats_get "dev veth1-end ingress" 101 ".packets" "" &> /dev/null; then
+	echo "PASS, captured 2"
+else
+	echo "FAIL"
+	rc=1
+fi
+exit $rc
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh b/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh
new file mode 100755
index 000000000000..8293dbc7c18f
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-eth-type-change.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test bond device ether type changing
+#
+
+ALL_TESTS="
+	bond_test_unsuccessful_enslave_type_change
+	bond_test_successful_enslave_type_change
+"
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+bond_check_flags()
+{
+	local bonddev=$1
+
+	ip -d l sh dev "$bonddev" | grep -q "MASTER"
+	check_err $? "MASTER flag is missing from the bond device"
+
+	ip -d l sh dev "$bonddev" | grep -q "SLAVE"
+	check_err $? "SLAVE flag is missing from the bond device"
+}
+
+# test enslaved bond dev type change from ARPHRD_ETHER and back
+# this allows us to test both MASTER and SLAVE flags at once
+bond_test_enslave_type_change()
+{
+	local test_success=$1
+	local devbond0="test-bond0"
+	local devbond1="test-bond1"
+	local devbond2="test-bond2"
+	local nonethdev="test-noneth0"
+
+	# create a non-ARPHRD_ETHER device for testing (e.g. nlmon type)
+	ip link add name "$nonethdev" type nlmon
+	check_err $? "could not create a non-ARPHRD_ETHER device (nlmon)"
+	ip link add name "$devbond0" type bond
+	if [ $test_success -eq 1 ]; then
+		# we need devbond0 in active-backup mode to successfully enslave nonethdev
+		ip link set dev "$devbond0" type bond mode active-backup
+		check_err $? "could not change bond mode to active-backup"
+	fi
+	ip link add name "$devbond1" type bond
+	ip link add name "$devbond2" type bond
+	ip link set dev "$devbond0" master "$devbond1"
+	check_err $? "could not enslave $devbond0 to $devbond1"
+	# change bond type to non-ARPHRD_ETHER
+	ip link set dev "$nonethdev" master "$devbond0" 1>/dev/null 2>/dev/null
+	ip link set dev "$nonethdev" nomaster 1>/dev/null 2>/dev/null
+	# restore ARPHRD_ETHER type by enslaving such device
+	ip link set dev "$devbond2" master "$devbond0"
+	check_err $? "could not enslave $devbond2 to $devbond0"
+
+	bond_check_flags "$devbond0"
+
+	# clean up
+	ip link del dev "$devbond0"
+	ip link del dev "$devbond1"
+	ip link del dev "$devbond2"
+	ip link del dev "$nonethdev"
+}
+
+bond_test_unsuccessful_enslave_type_change()
+{
+	RET=0
+
+	bond_test_enslave_type_change 0
+	log_test "Change ether type of an enslaved bond device with unsuccessful enslave"
+}
+
+bond_test_successful_enslave_type_change()
+{
+	RET=0
+
+	bond_test_enslave_type_change 1
+	log_test "Change ether type of an enslaved bond device with successful enslave"
+}
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/bond-lladdr-target.sh b/tools/testing/selftests/drivers/net/bonding/bond-lladdr-target.sh
new file mode 100755
index 000000000000..78d3e0fe6604
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond-lladdr-target.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Regression Test:
+#   Verify bond interface could up when set IPv6 link local address target.
+#
+#  +----------------+
+#  |      br0       |
+#  |       |        |    sw
+#  | veth0   veth1  |
+#  +---+-------+----+
+#      |       |
+#  +---+-------+----+
+#  | veth0   veth1  |
+#  |       |        |    host
+#  |     bond0      |
+#  +----------------+
+#
+# We use veths instead of physical interfaces
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+sw="sw-$(mktemp -u XXXXXX)"
+host="ns-$(mktemp -u XXXXXX)"
+
+cleanup()
+{
+	ip netns del $sw
+	ip netns del $host
+}
+
+wait_lladdr_dad()
+{
+	$@ | grep fe80 | grep -qv tentative
+}
+
+wait_bond_up()
+{
+	$@ | grep -q 'state UP'
+}
+
+trap cleanup 0 1 2
+
+ip netns add $sw
+ip netns add $host
+
+ip -n $host link add veth0 type veth peer name veth0 netns $sw
+ip -n $host link add veth1 type veth peer name veth1 netns $sw
+
+ip -n $sw link add br0 type bridge
+ip -n $sw link set br0 up
+sw_lladdr=$(ip -n $sw addr show br0 | awk '/fe80/{print $2}' | cut -d'/' -f1)
+# wait some time to make sure bridge lladdr pass DAD
+slowwait 2 wait_lladdr_dad ip -n $sw addr show br0
+
+ip -n $host link add bond0 type bond mode 1 ns_ip6_target ${sw_lladdr} \
+	arp_validate 3 arp_interval 1000
+# add a lladdr for bond to make sure there is a route to target
+ip -n $host addr add fe80::beef/64 dev bond0
+ip -n $host link set bond0 up
+ip -n $host link set veth0 master bond0
+ip -n $host link set veth1 master bond0
+
+ip -n $sw link set veth0 master br0
+ip -n $sw link set veth1 master br0
+ip -n $sw link set veth0 up
+ip -n $sw link set veth1 up
+
+slowwait 5 wait_bond_up ip -n $host link show bond0
+
+rc=0
+if ip -n $host link show bond0 | grep -q LOWER_UP; then
+	echo "PASS"
+else
+	echo "FAIL"
+	rc=1
+fi
+exit $rc
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_ipsec_offload.sh b/tools/testing/selftests/drivers/net/bonding/bond_ipsec_offload.sh
new file mode 100755
index 000000000000..f09e100232c7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_ipsec_offload.sh
@@ -0,0 +1,156 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# IPsec over bonding offload test:
+#
+#  +----------------+
+#  |     bond0      |
+#  |       |        |
+#  |  eth0    eth1  |
+#  +---+-------+----+
+#
+# We use netdevsim instead of physical interfaces
+#-------------------------------------------------------------------
+# Example commands
+#   ip x s add proto esp src 192.0.2.1 dst 192.0.2.2 \
+#            spi 0x07 mode transport reqid 0x07 replay-window 32 \
+#            aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \
+#            sel src 192.0.2.1/24 dst 192.0.2.2/24
+#            offload dev bond0 dir out
+#   ip x p add dir out src 192.0.2.1/24 dst 192.0.2.2/24 \
+#            tmpl proto esp src 192.0.2.1 dst 192.0.2.2 \
+#            spi 0x07 mode transport reqid 0x07
+#
+#-------------------------------------------------------------------
+
+lib_dir=$(dirname "$0")
+# shellcheck disable=SC1091
+source "$lib_dir"/../../../net/lib.sh
+srcip=192.0.2.1
+dstip=192.0.2.2
+ipsec0=/sys/kernel/debug/netdevsim/netdevsim0/ports/0/ipsec
+ipsec1=/sys/kernel/debug/netdevsim/netdevsim0/ports/1/ipsec
+active_slave=""
+
+# shellcheck disable=SC2317
+active_slave_changed()
+{
+	local old_active_slave=$1
+	local new_active_slave
+
+	# shellcheck disable=SC2154
+	new_active_slave=$(ip -n "${ns}" -d -j link show bond0 | \
+		jq -r ".[].linkinfo.info_data.active_slave")
+	[ "$new_active_slave" != "$old_active_slave" ] && [ "$new_active_slave" != "null" ]
+}
+
+test_offload()
+{
+	# use ping to exercise the Tx path
+	ip netns exec "$ns" ping -I bond0 -c 3 -W 1 -i 0 "$dstip" >/dev/null
+
+	active_slave=$(ip -n "${ns}" -d -j link show bond0 | \
+		       jq -r ".[].linkinfo.info_data.active_slave")
+
+	if [ "$active_slave" = "$nic0" ]; then
+		sysfs=$ipsec0
+	elif [ "$active_slave" = "$nic1" ]; then
+		sysfs=$ipsec1
+	else
+		check_err 1 "bond_ipsec_offload invalid active_slave $active_slave"
+	fi
+
+	# The tx/rx order in sysfs may changed after failover
+	grep -q "SA count=2 tx=3" "$sysfs" && grep -q "tx ipaddr=$dstip" "$sysfs"
+	check_err $? "incorrect tx count with link ${active_slave}"
+
+	log_test bond_ipsec_offload "active_slave ${active_slave}"
+}
+
+setup_env()
+{
+	if ! mount | grep -q debugfs; then
+		mount -t debugfs none /sys/kernel/debug/ &> /dev/null
+		defer umount /sys/kernel/debug/
+
+	fi
+
+	# setup netdevsim since dummy/veth dev doesn't have offload support
+	if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+		if ! modprobe -q netdevsim; then
+			echo "SKIP: can't load netdevsim for ipsec offload"
+			# shellcheck disable=SC2154
+			exit "$ksft_skip"
+		fi
+		defer modprobe -r netdevsim
+	fi
+
+	setup_ns ns
+	defer cleanup_ns "$ns"
+}
+
+setup_bond()
+{
+	ip -n "$ns" link add bond0 type bond mode active-backup miimon 100
+	ip -n "$ns" addr add "$srcip/24" dev bond0
+	ip -n "$ns" link set bond0 up
+
+	echo "0 2" | ip netns exec "$ns" tee /sys/bus/netdevsim/new_device >/dev/null
+	nic0=$(ip netns exec "$ns" ls /sys/bus/netdevsim/devices/netdevsim0/net | head -n 1)
+	nic1=$(ip netns exec "$ns" ls /sys/bus/netdevsim/devices/netdevsim0/net | tail -n 1)
+	ip -n "$ns" link set "$nic0" master bond0
+	ip -n "$ns" link set "$nic1" master bond0
+
+	# we didn't create a peer, make sure we can Tx by adding a permanent
+	# neighbour this need to be added after enslave
+	ip -n "$ns" neigh add "$dstip" dev bond0 lladdr 00:11:22:33:44:55
+
+	# create offloaded SAs, both in and out
+	ip -n "$ns" x p add dir out src "$srcip/24" dst "$dstip/24" \
+	    tmpl proto esp src "$srcip" dst "$dstip" spi 9 \
+	    mode transport reqid 42
+
+	ip -n "$ns" x p add dir in src "$dstip/24" dst "$srcip/24" \
+	    tmpl proto esp src "$dstip" dst "$srcip" spi 9 \
+	    mode transport reqid 42
+
+	ip -n "$ns" x s add proto esp src "$srcip" dst "$dstip" spi 9 \
+	    mode transport reqid 42 aead "rfc4106(gcm(aes))" \
+	    0x3132333435363738393031323334353664636261 128 \
+	    sel src "$srcip/24" dst "$dstip/24" \
+	    offload dev bond0 dir out
+
+	ip -n "$ns" x s add proto esp src "$dstip" dst "$srcip" spi 9 \
+	    mode transport reqid 42 aead "rfc4106(gcm(aes))" \
+	    0x3132333435363738393031323334353664636261 128 \
+	    sel src "$dstip/24" dst "$srcip/24" \
+	    offload dev bond0 dir in
+
+	# does offload show up in ip output
+	lines=$(ip -n "$ns" x s list | grep -c "crypto offload parameters: dev bond0 dir")
+	if [ "$lines" -ne 2 ] ; then
+		check_err 1 "bond_ipsec_offload SA offload missing from list output"
+	fi
+}
+
+trap defer_scopes_cleanup EXIT
+setup_env
+setup_bond
+
+# start Offload testing
+test_offload
+
+# do failover and re-test
+ip -n "$ns" link set "$active_slave" down
+slowwait 5 active_slave_changed "$active_slave"
+test_offload
+
+# make sure offload get removed from driver
+ip -n "$ns" x s flush
+ip -n "$ns" x p flush
+line0=$(grep -c "SA count=0" "$ipsec0")
+line1=$(grep -c "SA count=0" "$ipsec1")
+[ "$line0" -ne 1 ] || [ "$line1" -ne 1 ]
+check_fail $? "bond_ipsec_offload SA not removed from driver"
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh b/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh
new file mode 100755
index 000000000000..a483d505c6a8
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_lacp_prio.sh
@@ -0,0 +1,108 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing if bond lacp per port priority works
+#
+#          Switch (s_ns)          Backup Switch (b_ns)
+#  +-------------------------+ +-------------------------+
+#  |          bond0          | |          bond0          |
+#  |            +            | |            +            |
+#  |      eth0  |  eth1      | |      eth0  |  eth1      |
+#  |        +---+---+        | |        +---+---+        |
+#  |        |       |        | |        |       |        |
+#  +-------------------------+ +-------------------------+
+#           |       |                   |       |
+#  +-----------------------------------------------------+
+#  |        |       |                   |       |        |
+#  |        +-------+---------+---------+-------+        |
+#  |      eth0     eth1       |       eth2     eth3      |
+#  |                          +                          |
+#  |                        bond0                        |
+#  +-----------------------------------------------------+
+#                        Client (c_ns)
+
+lib_dir=$(dirname "$0")
+# shellcheck disable=SC1091
+source "$lib_dir"/../../../net/lib.sh
+
+setup_links()
+{
+	# shellcheck disable=SC2154
+	ip -n "${c_ns}" link add eth0 type veth peer name eth0 netns "${s_ns}"
+	ip -n "${c_ns}" link add eth1 type veth peer name eth1 netns "${s_ns}"
+	# shellcheck disable=SC2154
+	ip -n "${c_ns}" link add eth2 type veth peer name eth0 netns "${b_ns}"
+	ip -n "${c_ns}" link add eth3 type veth peer name eth1 netns "${b_ns}"
+
+	ip -n "${c_ns}" link add bond0 type bond mode 802.3ad miimon 100 \
+		lacp_rate fast ad_select actor_port_prio
+	ip -n "${s_ns}" link add bond0 type bond mode 802.3ad miimon 100 \
+		lacp_rate fast
+	ip -n "${b_ns}" link add bond0 type bond mode 802.3ad miimon 100 \
+		lacp_rate fast
+
+	ip -n "${c_ns}" link set eth0 master bond0
+	ip -n "${c_ns}" link set eth1 master bond0
+	ip -n "${c_ns}" link set eth2 master bond0
+	ip -n "${c_ns}" link set eth3 master bond0
+	ip -n "${s_ns}" link set eth0 master bond0
+	ip -n "${s_ns}" link set eth1 master bond0
+	ip -n "${b_ns}" link set eth0 master bond0
+	ip -n "${b_ns}" link set eth1 master bond0
+
+	ip -n "${c_ns}" link set bond0 up
+	ip -n "${s_ns}" link set bond0 up
+	ip -n "${b_ns}" link set bond0 up
+}
+
+test_port_prio_setting()
+{
+	RET=0
+	ip -n "${c_ns}" link set eth0 type bond_slave actor_port_prio 1000
+	prio=$(cmd_jq "ip -n ${c_ns} -d -j link show eth0" \
+		".[].linkinfo.info_slave_data.actor_port_prio")
+	[ "$prio" -ne 1000 ] && RET=1
+	ip -n "${c_ns}" link set eth2 type bond_slave actor_port_prio 10
+	prio=$(cmd_jq "ip -n ${c_ns} -d -j link show eth2" \
+		".[].linkinfo.info_slave_data.actor_port_prio")
+	[ "$prio" -ne 10 ] && RET=1
+}
+
+test_agg_reselect()
+{
+	local bond_agg_id slave_agg_id
+	local expect_slave="$1"
+	RET=0
+
+	# Trigger link state change to reselect the aggregator
+	ip -n "${c_ns}" link set eth1 down
+	sleep 0.5
+	ip -n "${c_ns}" link set eth1 up
+	sleep 0.5
+
+	bond_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show bond0" \
+		".[].linkinfo.info_data.ad_info.aggregator")
+	slave_agg_id=$(cmd_jq "ip -n ${c_ns} -d -j link show $expect_slave" \
+		".[].linkinfo.info_slave_data.ad_aggregator_id")
+	# shellcheck disable=SC2034
+	[ "${bond_agg_id}" -ne "${slave_agg_id}" ] && \
+		RET=1
+}
+
+trap cleanup_all_ns EXIT
+setup_ns c_ns s_ns b_ns
+setup_links
+
+test_port_prio_setting
+log_test "bond 802.3ad" "actor_port_prio setting"
+
+test_agg_reselect eth0
+log_test "bond 802.3ad" "actor_port_prio select"
+
+# Change the actor port prio and re-test
+ip -n "${c_ns}" link set eth0 type bond_slave actor_port_prio 10
+ip -n "${c_ns}" link set eth2 type bond_slave actor_port_prio 1000
+test_agg_reselect eth2
+log_test "bond 802.3ad" "actor_port_prio switch"
+
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_macvlan_ipvlan.sh b/tools/testing/selftests/drivers/net/bonding/bond_macvlan_ipvlan.sh
new file mode 100755
index 000000000000..559f300f965a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_macvlan_ipvlan.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test macvlan/ipvlan over bond
+
+lib_dir=$(dirname "$0")
+source ${lib_dir}/bond_topo_2d1c.sh
+
+xvlan1_ns="xvlan1-$(mktemp -u XXXXXX)"
+xvlan2_ns="xvlan2-$(mktemp -u XXXXXX)"
+xvlan1_ip4="192.0.2.11"
+xvlan1_ip6="2001:db8::11"
+xvlan2_ip4="192.0.2.12"
+xvlan2_ip6="2001:db8::12"
+
+cleanup()
+{
+	client_destroy
+	server_destroy
+	gateway_destroy
+
+	ip netns del ${xvlan1_ns}
+	ip netns del ${xvlan2_ns}
+}
+
+check_connection()
+{
+	local ns=${1}
+	local target=${2}
+	local message=${3}
+	RET=0
+
+	sleep 0.25
+	ip netns exec ${ns} ping ${target} -c 4 -i 0.1 &>/dev/null
+	check_err $? "ping failed"
+	log_test "${bond_mode}/${xvlan_type}_${xvlan_mode}: ${message}"
+}
+
+xvlan_over_bond()
+{
+	local param="$1"
+	local xvlan_type="$2"
+	local xvlan_mode="$3"
+	RET=0
+
+	# setup new bond mode
+	bond_reset "${param}"
+
+	ip -n ${s_ns} link add link bond0 name ${xvlan_type}0 type ${xvlan_type} mode ${xvlan_mode}
+	ip -n ${s_ns} link set ${xvlan_type}0 netns ${xvlan1_ns}
+	ip -n ${xvlan1_ns} link set dev ${xvlan_type}0 up
+	ip -n ${xvlan1_ns} addr add ${xvlan1_ip4}/24 dev ${xvlan_type}0
+	ip -n ${xvlan1_ns} addr add ${xvlan1_ip6}/24 dev ${xvlan_type}0
+
+	ip -n ${s_ns} link add link bond0 name ${xvlan_type}0 type ${xvlan_type} mode ${xvlan_mode}
+	ip -n ${s_ns} link set ${xvlan_type}0 netns ${xvlan2_ns}
+	ip -n ${xvlan2_ns} link set dev ${xvlan_type}0 up
+	ip -n ${xvlan2_ns} addr add ${xvlan2_ip4}/24 dev ${xvlan_type}0
+	ip -n ${xvlan2_ns} addr add ${xvlan2_ip6}/24 dev ${xvlan_type}0
+
+	sleep 2
+
+	check_connection "${c_ns}" "${s_ip4}" "IPv4: client->server"
+	check_connection "${c_ns}" "${s_ip6}" "IPv6: client->server"
+	check_connection "${c_ns}" "${xvlan1_ip4}" "IPv4: client->${xvlan_type}_1"
+	check_connection "${c_ns}" "${xvlan1_ip6}" "IPv6: client->${xvlan_type}_1"
+	check_connection "${c_ns}" "${xvlan2_ip4}" "IPv4: client->${xvlan_type}_2"
+	check_connection "${c_ns}" "${xvlan2_ip6}" "IPv6: client->${xvlan_type}_2"
+	check_connection "${xvlan1_ns}" "${xvlan2_ip4}" "IPv4: ${xvlan_type}_1->${xvlan_type}_2"
+	check_connection "${xvlan1_ns}" "${xvlan2_ip6}" "IPv6: ${xvlan_type}_1->${xvlan_type}_2"
+
+	check_connection "${s_ns}" "${c_ip4}" "IPv4: server->client"
+	check_connection "${s_ns}" "${c_ip6}" "IPv6: server->client"
+	check_connection "${xvlan1_ns}" "${c_ip4}" "IPv4: ${xvlan_type}_1->client"
+	check_connection "${xvlan1_ns}" "${c_ip6}" "IPv6: ${xvlan_type}_1->client"
+	check_connection "${xvlan2_ns}" "${c_ip4}" "IPv4: ${xvlan_type}_2->client"
+	check_connection "${xvlan2_ns}" "${c_ip6}" "IPv6: ${xvlan_type}_2->client"
+	check_connection "${xvlan2_ns}" "${xvlan1_ip4}" "IPv4: ${xvlan_type}_2->${xvlan_type}_1"
+	check_connection "${xvlan2_ns}" "${xvlan1_ip6}" "IPv6: ${xvlan_type}_2->${xvlan_type}_1"
+
+	ip -n ${c_ns} neigh flush dev eth0
+}
+
+trap cleanup EXIT
+
+setup_prepare
+ip netns add ${xvlan1_ns}
+ip netns add ${xvlan2_ns}
+
+bond_modes="active-backup balance-tlb balance-alb"
+
+for bond_mode in ${bond_modes}; do
+	xvlan_over_bond "mode ${bond_mode}" macvlan bridge
+	xvlan_over_bond "mode ${bond_mode}" ipvlan  l2
+done
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_options.sh b/tools/testing/selftests/drivers/net/bonding/bond_options.sh
new file mode 100755
index 000000000000..187b478d0ddf
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_options.sh
@@ -0,0 +1,578 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test bonding options with mode 1,5,6
+
+ALL_TESTS="
+	prio
+	arp_validate
+	num_grat_arp
+	fail_over_mac
+	vlan_over_bond
+"
+
+lib_dir=$(dirname "$0")
+source ${lib_dir}/bond_topo_3d1c.sh
+c_maddr="33:33:ff:00:00:10"
+g_maddr="33:33:ff:00:02:54"
+
+skip_prio()
+{
+	local skip=1
+
+	# check if iproute support prio option
+	ip -n ${s_ns} link set eth0 type bond_slave prio 10
+	[[ $? -ne 0 ]] && skip=0
+
+	# check if kernel support prio option
+	ip -n ${s_ns} -d link show eth0 | grep -q "prio 10"
+	[[ $? -ne 0 ]] && skip=0
+
+	return $skip
+}
+
+skip_ns()
+{
+	local skip=1
+
+	# check if iproute support ns_ip6_target option
+	ip -n ${s_ns} link add bond1 type bond ns_ip6_target ${g_ip6}
+	[[ $? -ne 0 ]] && skip=0
+
+	# check if kernel support ns_ip6_target option
+	ip -n ${s_ns} -d link show bond1 | grep -q "ns_ip6_target ${g_ip6}"
+	[[ $? -ne 0 ]] && skip=0
+
+	ip -n ${s_ns} link del bond1
+
+	return $skip
+}
+
+active_slave=""
+active_slave_changed()
+{
+	local old_active_slave=$1
+	local new_active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" \
+				".[].linkinfo.info_data.active_slave")
+	[ "$new_active_slave" != "$old_active_slave" -a "$new_active_slave" != "null" ]
+}
+
+check_active_slave()
+{
+	local target_active_slave=$1
+	slowwait 5 active_slave_changed $active_slave
+	active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+	test "$active_slave" = "$target_active_slave"
+	check_err $? "Current active slave is $active_slave but not $target_active_slave"
+}
+
+# Test bonding prio option
+prio_test()
+{
+	local param="$1"
+	RET=0
+
+	# create bond
+	bond_reset "${param}"
+	# set active_slave to primary eth1 specifically
+	ip -n ${s_ns} link set bond0 type bond active_slave eth1
+
+	# check bonding member prio value
+	ip -n ${s_ns} link set eth0 type bond_slave prio 0
+	ip -n ${s_ns} link set eth1 type bond_slave prio 10
+	ip -n ${s_ns} link set eth2 type bond_slave prio 11
+	cmd_jq "ip -n ${s_ns} -d -j link show eth0" \
+		".[].linkinfo.info_slave_data | select (.prio == 0)" "-e" &> /dev/null
+	check_err $? "eth0 prio is not 0"
+	cmd_jq "ip -n ${s_ns} -d -j link show eth1" \
+		".[].linkinfo.info_slave_data | select (.prio == 10)" "-e" &> /dev/null
+	check_err $? "eth1 prio is not 10"
+	cmd_jq "ip -n ${s_ns} -d -j link show eth2" \
+		".[].linkinfo.info_slave_data | select (.prio == 11)" "-e" &> /dev/null
+	check_err $? "eth2 prio is not 11"
+
+	bond_check_connection "setup"
+
+	# active slave should be the primary slave
+	check_active_slave eth1
+
+	# active slave should be the higher prio slave
+	ip -n ${s_ns} link set $active_slave down
+	check_active_slave eth2
+	bond_check_connection "fail over"
+
+	# when only 1 slave is up
+	ip -n ${s_ns} link set $active_slave down
+	check_active_slave eth0
+	bond_check_connection "only 1 slave up"
+
+	# when a higher prio slave change to up
+	ip -n ${s_ns} link set eth2 up
+	bond_check_connection "higher prio slave up"
+	case $primary_reselect in
+		"0")
+			check_active_slave "eth2"
+			;;
+		"1")
+			check_active_slave "eth0"
+			;;
+		"2")
+			check_active_slave "eth0"
+			;;
+	esac
+	local pre_active_slave=$active_slave
+
+	# when the primary slave change to up
+	ip -n ${s_ns} link set eth1 up
+	bond_check_connection "primary slave up"
+	case $primary_reselect in
+		"0")
+			check_active_slave "eth1"
+			;;
+		"1")
+			check_active_slave "$pre_active_slave"
+			;;
+		"2")
+			check_active_slave "$pre_active_slave"
+			ip -n ${s_ns} link set $active_slave down
+			bond_check_connection "pre_active slave down"
+			check_active_slave "eth1"
+			;;
+	esac
+
+	# Test changing bond slave prio
+	if [[ "$primary_reselect" == "0" ]];then
+		ip -n ${s_ns} link set eth0 type bond_slave prio 1000000
+		ip -n ${s_ns} link set eth1 type bond_slave prio 0
+		ip -n ${s_ns} link set eth2 type bond_slave prio -50
+		ip -n ${s_ns} -d link show eth0 | grep -q 'prio 1000000'
+		check_err $? "eth0 prio is not 1000000"
+		ip -n ${s_ns} -d link show eth1 | grep -q 'prio 0'
+		check_err $? "eth1 prio is not 0"
+		ip -n ${s_ns} -d link show eth2 | grep -q 'prio -50'
+		check_err $? "eth3 prio is not -50"
+		check_active_slave "eth1"
+
+		ip -n ${s_ns} link set $active_slave down
+		check_active_slave "eth0"
+		bond_check_connection "change slave prio"
+	fi
+}
+
+prio_miimon()
+{
+	local primary_reselect
+	local mode=$1
+
+	for primary_reselect in 0 1 2; do
+		prio_test "mode $mode miimon 100 primary eth1 primary_reselect $primary_reselect"
+		log_test "prio" "$mode miimon primary_reselect $primary_reselect"
+	done
+}
+
+prio_arp()
+{
+	local primary_reselect
+	local mode=$1
+
+	for primary_reselect in 0 1 2; do
+		prio_test "mode $mode arp_interval 100 arp_ip_target ${g_ip4} primary eth1 primary_reselect $primary_reselect"
+		log_test "prio" "$mode arp_ip_target primary_reselect $primary_reselect"
+	done
+}
+
+prio_ns()
+{
+	local primary_reselect
+	local mode=$1
+
+	if skip_ns; then
+		log_test_skip "prio ns" "Current iproute or kernel doesn't support bond option 'ns_ip6_target'."
+		return 0
+	fi
+
+	for primary_reselect in 0 1 2; do
+		prio_test "mode $mode arp_interval 100 ns_ip6_target ${g_ip6} primary eth1 primary_reselect $primary_reselect"
+		log_test "prio" "$mode ns_ip6_target primary_reselect $primary_reselect"
+	done
+}
+
+prio()
+{
+	local mode modes="active-backup balance-tlb balance-alb"
+
+	if skip_prio; then
+		log_test_skip "prio" "Current iproute or kernel doesn't support bond option 'prio'."
+		return 0
+	fi
+
+	for mode in $modes; do
+		prio_miimon $mode
+	done
+	prio_arp "active-backup"
+	prio_ns "active-backup"
+}
+
+wait_mii_up()
+{
+	for i in $(seq 0 2); do
+		mii_status=$(cmd_jq "ip -n ${s_ns} -j -d link show eth$i" ".[].linkinfo.info_slave_data.mii_status")
+		[ ${mii_status} != "UP" ] && return 1
+	done
+	return 0
+}
+
+arp_validate_test()
+{
+	local param="$1"
+	RET=0
+
+	# create bond
+	bond_reset "${param}"
+
+	bond_check_connection
+	[ $RET -ne 0 ] && log_test "arp_validate" "$retmsg"
+
+	# wait for a while to make sure the mii status stable
+	slowwait 5 wait_mii_up
+	for i in $(seq 0 2); do
+		mii_status=$(cmd_jq "ip -n ${s_ns} -j -d link show eth$i" ".[].linkinfo.info_slave_data.mii_status")
+		if [ ${mii_status} != "UP" ]; then
+			RET=1
+			log_test "arp_validate" "interface eth$i mii_status $mii_status"
+		fi
+	done
+}
+
+# Testing correct multicast groups are added to slaves for ns targets
+arp_validate_mcast()
+{
+	RET=0
+	local arp_valid=$(cmd_jq "ip -n ${s_ns} -j -d link show bond0" ".[].linkinfo.info_data.arp_validate")
+	local active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+
+	for i in $(seq 0 2); do
+		maddr_list=$(ip -n ${s_ns} maddr show dev eth${i})
+
+		# arp_valid == 0 or active_slave should not join any maddrs
+		if { [ "$arp_valid" == "null" ] || [ "eth${i}" == ${active_slave} ]; } && \
+			echo "$maddr_list" | grep -qE "${c_maddr}|${g_maddr}"; then
+			RET=1
+			check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+		# arp_valid != 0 and backup_slave should join both maddrs
+		elif [ "$arp_valid" != "null" ] && [ "eth${i}" != ${active_slave} ] && \
+		     ( ! echo "$maddr_list" | grep -q "${c_maddr}" || \
+		       ! echo "$maddr_list" | grep -q "${m_maddr}"); then
+			RET=1
+			check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+		fi
+	done
+
+	# Do failover
+	ip -n ${s_ns} link set ${active_slave} down
+	# wait for active link change
+	slowwait 2 active_slave_changed $active_slave
+	active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+
+	for i in $(seq 0 2); do
+		maddr_list=$(ip -n ${s_ns} maddr show dev eth${i})
+
+		# arp_valid == 0 or active_slave should not join any maddrs
+		if { [ "$arp_valid" == "null" ] || [ "eth${i}" == ${active_slave} ]; } && \
+			echo "$maddr_list" | grep -qE "${c_maddr}|${g_maddr}"; then
+			RET=1
+			check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+		# arp_valid != 0 and backup_slave should join both maddrs
+		elif [ "$arp_valid" != "null" ] && [ "eth${i}" != ${active_slave} ] && \
+		     ( ! echo "$maddr_list" | grep -q "${c_maddr}" || \
+		       ! echo "$maddr_list" | grep -q "${m_maddr}"); then
+			RET=1
+			check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+		fi
+	done
+}
+
+arp_validate_arp()
+{
+	local mode=$1
+	local val
+	for val in $(seq 0 6); do
+		arp_validate_test "mode $mode arp_interval 100 arp_ip_target ${g_ip4} arp_validate $val"
+		log_test "arp_validate" "$mode arp_ip_target arp_validate $val"
+	done
+}
+
+arp_validate_ns()
+{
+	local mode=$1
+	local val
+
+	if skip_ns; then
+		log_test_skip "arp_validate ns" "Current iproute or kernel doesn't support bond option 'ns_ip6_target'."
+		return 0
+	fi
+
+	for val in $(seq 0 6); do
+		arp_validate_test "mode $mode arp_interval 100 ns_ip6_target ${g_ip6},${c_ip6} arp_validate $val"
+		log_test "arp_validate" "$mode ns_ip6_target arp_validate $val"
+		arp_validate_mcast
+		log_test "arp_validate" "join mcast group"
+	done
+}
+
+arp_validate()
+{
+	arp_validate_arp "active-backup"
+	arp_validate_ns "active-backup"
+}
+
+garp_test()
+{
+	local param="$1"
+	local active_slave exp_num real_num i
+	RET=0
+
+	# create bond
+	bond_reset "${param}"
+
+	bond_check_connection
+	[ $RET -ne 0 ] && log_test "num_grat_arp" "$retmsg"
+
+
+	# Add tc rules to count GARP number
+	for i in $(seq 0 2); do
+		tc -n ${g_ns} filter add dev s$i ingress protocol arp pref 1 handle 101 \
+			flower skip_hw arp_op request arp_sip ${s_ip4} arp_tip ${s_ip4} action pass
+	done
+
+	# Do failover
+	active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+	ip -n ${s_ns} link set ${active_slave} down
+
+	# wait for active link change
+	slowwait 2 active_slave_changed $active_slave
+
+	exp_num=$(echo "${param}" | cut -f6 -d ' ')
+	active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+	slowwait_for_counter $((exp_num + 5)) $exp_num tc_rule_handle_stats_get \
+		"dev s${active_slave#eth} ingress" 101 ".packets" "-n ${g_ns}" &> /dev/null
+
+	# check result
+	real_num=$(tc_rule_handle_stats_get "dev s${active_slave#eth} ingress" 101 ".packets" "-n ${g_ns}")
+	if [ "${real_num}" -ne "${exp_num}" ]; then
+		echo "$real_num garp packets sent on active slave ${active_slave}"
+		RET=1
+	fi
+
+	for i in $(seq 0 2); do
+		tc -n ${g_ns} filter del dev s$i ingress
+	done
+}
+
+num_grat_arp()
+{
+	local val
+	for val in 10 20 30; do
+		garp_test "mode active-backup miimon 10 num_grat_arp $val peer_notify_delay 100"
+		log_test "num_grat_arp" "active-backup miimon num_grat_arp $val"
+	done
+}
+
+check_all_mac_same()
+{
+	RET=0
+	# all slaves should have same mac address (with the first port's mac)
+	local bond_mac=$(ip -n "$s_ns" -j link show bond0 | jq -r '.[]["address"]')
+	local eth0_mac=$(ip -n "$s_ns" -j link show eth0 | jq -r '.[]["address"]')
+	local eth1_mac=$(ip -n "$s_ns" -j link show eth1 | jq -r '.[]["address"]')
+	local eth2_mac=$(ip -n "$s_ns" -j link show eth2 | jq -r '.[]["address"]')
+	if [ "$bond_mac" != "${mac[0]}" ] || [ "$eth0_mac" != "$bond_mac" ] || \
+		[ "$eth1_mac" != "$bond_mac" ] || [ "$eth2_mac" != "$bond_mac" ]; then
+		RET=1
+	fi
+}
+
+check_bond_mac_same_with_first()
+{
+	RET=0
+	# bond mac address should be same with the first added slave
+	local bond_mac=$(ip -n "$s_ns" -j link show bond0 | jq -r '.[]["address"]')
+	if [ "$bond_mac" != "${mac[0]}" ]; then
+		RET=1
+	fi
+}
+
+check_bond_mac_same_with_active()
+{
+	RET=0
+	# bond mac address should be same with active slave
+	local bond_mac=$(ip -n "$s_ns" -j link show bond0 | jq -r '.[]["address"]')
+	local active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+	local active_slave_mac=$(ip -n "$s_ns" -j link show "$active_slave" | jq -r '.[]["address"]')
+	if [ "$bond_mac" != "$active_slave_mac" ]; then
+		RET=1
+	fi
+}
+
+check_backup_slave_mac_not_change()
+{
+	RET=0
+	# backup slave's mac address is not changed
+	if ip -n "$s_ns" -d -j link show type bond_slave | jq -e '.[]
+		| select(.linkinfo.info_slave_data.state=="BACKUP")
+		| select(.address != .linkinfo.info_slave_data.perm_hwaddr)' &> /dev/null; then
+		RET=1
+	fi
+}
+
+check_backup_slave_mac_inherit()
+{
+	local backup_mac
+	RET=0
+
+	# backup slaves should use mac[1] or mac[2]
+	local backup_macs=$(ip -n "$s_ns" -d -j link show type bond_slave | \
+		jq -r '.[] | select(.linkinfo.info_slave_data.state=="BACKUP") | .address')
+	for backup_mac in $backup_macs; do
+		if [ "$backup_mac" != "${mac[1]}" ] && [ "$backup_mac" != "${mac[2]}" ]; then
+			RET=1
+		fi
+	done
+}
+
+check_first_slave_random_mac()
+{
+	RET=0
+	# remove the first added slave and added it back
+	ip -n "$s_ns" link set eth0 nomaster
+	ip -n "$s_ns" link set eth0 master bond0
+
+	# the first slave should use random mac address
+	eth0_mac=$(ip -n "$s_ns" -j link show eth0 | jq -r '.[]["address"]')
+	[ "$eth0_mac" = "${mac[0]}" ] && RET=1
+	log_test "bond fail_over_mac follow" "random first slave mac"
+
+	# remove the first slave, the permanent MAC address should be restored back
+	ip -n "$s_ns" link set eth0 nomaster
+	eth0_mac=$(ip -n "$s_ns" -j link show eth0 | jq -r '.[]["address"]')
+	[ "$eth0_mac" != "${mac[0]}" ] && RET=1
+}
+
+do_active_backup_failover()
+{
+	local active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+	ip -n ${s_ns} link set ${active_slave} down
+	slowwait 2 active_slave_changed $active_slave
+	ip -n ${s_ns} link set ${active_slave} up
+}
+
+fail_over_mac()
+{
+	# Bring down the first interface on the switch to force the bond to
+	# select another active interface instead of the first one that joined.
+	ip -n "$g_ns" link set s0 down
+
+	# fail_over_mac none
+	bond_reset "mode active-backup miimon 100 fail_over_mac 0"
+	check_all_mac_same
+	log_test "fail_over_mac 0" "all slaves have same mac"
+	do_active_backup_failover
+	check_all_mac_same
+	log_test "fail_over_mac 0" "failover: all slaves have same mac"
+
+	# fail_over_mac active
+	bond_reset "mode active-backup miimon 100 fail_over_mac 1"
+	check_bond_mac_same_with_active
+	log_test "fail_over_mac 1" "bond mac is same with active slave mac"
+	check_backup_slave_mac_not_change
+	log_test "fail_over_mac 1" "backup slave mac is not changed"
+	do_active_backup_failover
+	check_bond_mac_same_with_active
+	log_test "fail_over_mac 1" "failover: bond mac is same with active slave mac"
+	check_backup_slave_mac_not_change
+	log_test "fail_over_mac 1" "failover: backup slave mac is not changed"
+
+	# fail_over_mac follow
+	bond_reset "mode active-backup miimon 100 fail_over_mac 2"
+	check_bond_mac_same_with_first
+	log_test "fail_over_mac 2" "bond mac is same with first slave mac"
+	check_bond_mac_same_with_active
+	log_test "fail_over_mac 2" "bond mac is same with active slave mac"
+	check_backup_slave_mac_inherit
+	log_test "fail_over_mac 2" "backup slave mac inherit"
+	do_active_backup_failover
+	check_bond_mac_same_with_first
+	log_test "fail_over_mac 2" "failover: bond mac is same with first slave mac"
+	check_bond_mac_same_with_active
+	log_test "fail_over_mac 2" "failover: bond mac is same with active slave mac"
+	check_backup_slave_mac_inherit
+	log_test "fail_over_mac 2" "failover: backup slave mac inherit"
+	check_first_slave_random_mac
+	log_test "fail_over_mac 2" "first slave mac random"
+}
+
+vlan_over_bond_arp()
+{
+	local mode="$1"
+	RET=0
+
+	bond_reset "mode $mode arp_interval 100 arp_ip_target 192.0.3.10"
+	ip -n "${s_ns}" link add bond0.3 link bond0 type vlan id 3
+	ip -n "${s_ns}" link set bond0.3 up
+	ip -n "${s_ns}" addr add 192.0.3.1/24 dev bond0.3
+	ip -n "${s_ns}" addr add 2001:db8::3:1/64 dev bond0.3
+
+	slowwait_for_counter 5 5 tc_rule_handle_stats_get \
+		"dev eth0.3 ingress" 101 ".packets" "-n ${c_ns}" &> /dev/null || RET=1
+	log_test "vlan over bond arp" "$mode"
+}
+
+vlan_over_bond_ns()
+{
+	local mode="$1"
+	RET=0
+
+	if skip_ns; then
+		log_test_skip "vlan_over_bond ns" "$mode"
+		return 0
+	fi
+
+	bond_reset "mode $mode arp_interval 100 ns_ip6_target 2001:db8::3:10"
+	ip -n "${s_ns}" link add bond0.3 link bond0 type vlan id 3
+	ip -n "${s_ns}" link set bond0.3 up
+	ip -n "${s_ns}" addr add 192.0.3.1/24 dev bond0.3
+	ip -n "${s_ns}" addr add 2001:db8::3:1/64 dev bond0.3
+
+	slowwait_for_counter 5 5 tc_rule_handle_stats_get \
+		"dev eth0.3 ingress" 102 ".packets" "-n ${c_ns}" &> /dev/null || RET=1
+	log_test "vlan over bond ns" "$mode"
+}
+
+vlan_over_bond()
+{
+	# add vlan 3 for client
+	ip -n "${c_ns}" link add eth0.3 link eth0 type vlan id 3
+	ip -n "${c_ns}" link set eth0.3 up
+	ip -n "${c_ns}" addr add 192.0.3.10/24 dev eth0.3
+	ip -n "${c_ns}" addr add 2001:db8::3:10/64 dev eth0.3
+
+	# Add tc rule to check the vlan pkts
+	tc -n "${c_ns}" qdisc add dev eth0.3 clsact
+	tc -n "${c_ns}" filter add dev eth0.3 ingress protocol arp \
+		handle 101 flower skip_hw arp_op request \
+		arp_sip 192.0.3.1 arp_tip 192.0.3.10 action pass
+	tc -n "${c_ns}" filter add dev eth0.3 ingress protocol ipv6 \
+		handle 102 flower skip_hw ip_proto icmpv6 \
+		type 135 src_ip 2001:db8::3:1 action pass
+
+	vlan_over_bond_arp "active-backup"
+	vlan_over_bond_ns "active-backup"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh b/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh
new file mode 100755
index 000000000000..9c3b089813df
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_passive_lacp.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test if a bond interface works with lacp_active=off.
+
+# shellcheck disable=SC2034
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+# shellcheck disable=SC1091
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+# shellcheck disable=SC2317
+check_port_state()
+{
+	local netns=$1
+	local port=$2
+	local state=$3
+
+	ip -n "${netns}" -d -j link show "$port" | \
+		jq -e ".[].linkinfo.info_slave_data.ad_actor_oper_port_state_str | index(\"${state}\") != null" > /dev/null
+}
+
+check_pkt_count()
+{
+	RET=0
+	local ns="$1"
+	local iface="$2"
+
+	# wait 65s, one per 30s
+	slowwait_for_counter 65 2 tc_rule_handle_stats_get \
+		"dev ${iface} egress" 101 ".packets" "-n ${ns}" &> /dev/null
+}
+
+setup() {
+	setup_ns c_ns s_ns
+
+	# shellcheck disable=SC2154
+	ip -n "${c_ns}" link add eth0 type veth peer name eth0 netns "${s_ns}"
+	ip -n "${c_ns}" link add eth1 type veth peer name eth1 netns "${s_ns}"
+
+	# Add tc filter to count the pkts
+	tc -n "${c_ns}" qdisc add dev eth0 clsact
+	tc -n "${c_ns}" filter add dev eth0 egress handle 101 protocol 0x8809 matchall action pass
+	tc -n "${s_ns}" qdisc add dev eth1 clsact
+	tc -n "${s_ns}" filter add dev eth1 egress handle 101 protocol 0x8809 matchall action pass
+
+	ip -n "${s_ns}" link add bond0 type bond mode 802.3ad lacp_active on lacp_rate fast
+	ip -n "${s_ns}" link set eth0 master bond0
+	ip -n "${s_ns}" link set eth1 master bond0
+
+	ip -n "${c_ns}" link add bond0 type bond mode 802.3ad lacp_active off lacp_rate fast
+	ip -n "${c_ns}" link set eth0 master bond0
+	ip -n "${c_ns}" link set eth1 master bond0
+
+}
+
+trap cleanup_all_ns EXIT
+setup
+
+# The bond will send 2 lacpdu pkts during init time, let's wait at least 2s
+# after interface up
+ip -n "${c_ns}" link set bond0 up
+sleep 2
+
+# 1. The passive side shouldn't send LACPDU.
+check_pkt_count "${c_ns}" "eth0" && RET=1
+log_test "802.3ad lacp_active off" "init port"
+
+ip -n "${s_ns}" link set bond0 up
+# 2. The passive side should not have the 'active' flag.
+RET=0
+slowwait 2 check_port_state "${c_ns}" "eth0" "active" && RET=1
+log_test "802.3ad lacp_active off" "port state active"
+
+# 3. The active side should have the 'active' flag.
+RET=0
+slowwait 2 check_port_state "${s_ns}" "eth0" "active" || RET=1
+log_test "802.3ad lacp_active on" "port state active"
+
+# 4. Make sure the connection is not expired.
+RET=0
+slowwait 5 check_port_state "${s_ns}" "eth0" "distributing"
+slowwait 10 check_port_state "${s_ns}" "eth0" "expired" && RET=1
+log_test "bond 802.3ad lacp_active off" "port connection"
+
+# After testing, disconnect one port on each side to check the state.
+ip -n "${s_ns}" link set eth0 nomaster
+ip -n "${s_ns}" link set eth0 up
+ip -n "${c_ns}" link set eth1 nomaster
+ip -n "${c_ns}" link set eth1 up
+# Due to Periodic Machine and Rx Machine state change, the bond will still
+# send lacpdu pkts in a few seconds. sleep at lease 5s to make sure
+# negotiation finished
+sleep 5
+
+# 5. The active side should keep sending LACPDU.
+check_pkt_count "${s_ns}" "eth1" || RET=1
+log_test "bond 802.3ad lacp_active on" "port pkt after disconnect"
+
+# 6. The passive side shouldn't send LACPDU anymore.
+check_pkt_count "${c_ns}" "eth0" && RET=1
+log_test "bond 802.3ad lacp_active off" "port pkt after disconnect"
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_topo_2d1c.sh b/tools/testing/selftests/drivers/net/bonding/bond_topo_2d1c.sh
new file mode 100644
index 000000000000..167aa4a4a12a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_topo_2d1c.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Topology for Bond mode 1,5,6 testing
+#
+#  +-------------------------+
+#  |          bond0          |  Server
+#  |            +            |  192.0.2.1/24
+#  |      eth0  |  eth1      |  2001:db8::1/24
+#  |        +---+---+        |
+#  |        |       |        |
+#  +-------------------------+
+#           |       |
+#  +-------------------------+
+#  |        |       |        |
+#  |    +---+-------+---+    |  Gateway
+#  |    |      br0      |    |  192.0.2.254/24
+#  |    +-------+-------+    |  2001:db8::254/24
+#  |            |            |
+#  +-------------------------+
+#               |
+#  +-------------------------+
+#  |            |            |  Client
+#  |            +            |  192.0.2.10/24
+#  |          eth0           |  2001:db8::10/24
+#  +-------------------------+
+
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+s_ns="s-$(mktemp -u XXXXXX)"
+c_ns="c-$(mktemp -u XXXXXX)"
+g_ns="g-$(mktemp -u XXXXXX)"
+s_ip4="192.0.2.1"
+c_ip4="192.0.2.10"
+g_ip4="192.0.2.254"
+s_ip6="2001:db8::1"
+c_ip6="2001:db8::10"
+g_ip6="2001:db8::254"
+mac[0]="00:0a:0b:0c:0d:01"
+mac[1]="00:0a:0b:0c:0d:02"
+
+gateway_create()
+{
+	ip netns add ${g_ns}
+	ip -n ${g_ns} link add br0 type bridge
+	ip -n ${g_ns} link set br0 up
+	ip -n ${g_ns} addr add ${g_ip4}/24 dev br0
+	ip -n ${g_ns} addr add ${g_ip6}/24 dev br0
+}
+
+gateway_destroy()
+{
+	ip -n ${g_ns} link del br0
+	ip netns del ${g_ns}
+}
+
+server_create()
+{
+	ip netns add ${s_ns}
+	ip -n ${s_ns} link add bond0 type bond mode active-backup miimon 100
+
+	for i in $(seq 0 1); do
+		ip -n ${s_ns} link add eth${i} type veth peer name s${i} netns ${g_ns}
+		ip -n "${s_ns}" link set "eth${i}" addr "${mac[$i]}"
+
+		ip -n ${g_ns} link set s${i} up
+		ip -n ${g_ns} link set s${i} master br0
+		ip -n ${s_ns} link set eth${i} master bond0
+
+		tc -n ${g_ns} qdisc add dev s${i} clsact
+	done
+
+	ip -n ${s_ns} link set bond0 up
+	ip -n ${s_ns} addr add ${s_ip4}/24 dev bond0
+	ip -n ${s_ns} addr add ${s_ip6}/24 dev bond0
+}
+
+# Reset bond with new mode and options
+bond_reset()
+{
+	# Count the eth link number in real-time as this function
+	# maybe called from other topologies.
+	local link_num=$(ip -n ${s_ns} -br link show | grep -c "^eth")
+	local param="$1"
+	link_num=$((link_num -1))
+
+	ip -n ${s_ns} link set bond0 down
+	ip -n ${s_ns} link del bond0
+
+	ip -n ${s_ns} link add bond0 type bond $param
+	for i in $(seq 0 ${link_num}); do
+		ip -n ${s_ns} link set eth$i master bond0
+	done
+
+	ip -n ${s_ns} link set bond0 up
+	ip -n ${s_ns} addr add ${s_ip4}/24 dev bond0
+	ip -n ${s_ns} addr add ${s_ip6}/24 dev bond0
+	# Wait for IPv6 address ready as it needs DAD
+	slowwait 2 ip netns exec ${s_ns} ping6 ${c_ip6} -c 1 -W 0.1 &> /dev/null
+}
+
+server_destroy()
+{
+	# Count the eth link number in real-time as this function
+	# maybe called from other topologies.
+	local link_num=$(ip -n ${s_ns} -br link show | grep -c "^eth")
+	link_num=$((link_num -1))
+	for i in $(seq 0 ${link_num}); do
+		ip -n ${s_ns} link del eth${i}
+	done
+	ip netns del ${s_ns}
+}
+
+client_create()
+{
+	ip netns add ${c_ns}
+	ip -n ${c_ns} link add eth0 type veth peer name c0 netns ${g_ns}
+
+	ip -n ${g_ns} link set c0 up
+	ip -n ${g_ns} link set c0 master br0
+
+	ip -n ${c_ns} link set eth0 up
+	ip -n ${c_ns} addr add ${c_ip4}/24 dev eth0
+	ip -n ${c_ns} addr add ${c_ip6}/24 dev eth0
+}
+
+client_destroy()
+{
+	ip -n ${c_ns} link del eth0
+	ip netns del ${c_ns}
+}
+
+setup_prepare()
+{
+	gateway_create
+	server_create
+	client_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	client_destroy
+	server_destroy
+	gateway_destroy
+}
+
+bond_check_connection()
+{
+	local msg=${1:-"check connection"}
+
+	slowwait 2 ip netns exec ${s_ns} ping ${c_ip4} -c 1 -W 0.1 &> /dev/null
+	ip netns exec ${s_ns} ping ${c_ip4} -c5 -i 0.1 &>/dev/null
+	check_err $? "${msg}: ping failed"
+	ip netns exec ${s_ns} ping6 ${c_ip6} -c5 -i 0.1 &>/dev/null
+	check_err $? "${msg}: ping6 failed"
+}
diff --git a/tools/testing/selftests/drivers/net/bonding/bond_topo_3d1c.sh b/tools/testing/selftests/drivers/net/bonding/bond_topo_3d1c.sh
new file mode 100644
index 000000000000..23a2932301cc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/bond_topo_3d1c.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Topology for Bond mode 1,5,6 testing
+#
+#  +-------------------------------------+
+#  |                bond0                |
+#  |                  +                  |  Server
+#  |      eth0        | eth1   eth2      |  192.0.2.1/24
+#  |        +-------------------+        |  2001:db8::1/24
+#  |        |         |         |        |
+#  +-------------------------------------+
+#           |         |         |
+#  +-------------------------------------+
+#  |        |         |         |        |
+#  |    +---+---------+---------+---+    |  Gateway
+#  |    |            br0            |    |  192.0.2.254/24
+#  |    +-------------+-------------+    |  2001:db8::254/24
+#  |                  |                  |
+#  +-------------------------------------+
+#                     |
+#  +-------------------------------------+
+#  |                  |                  |  Client
+#  |                  +                  |  192.0.2.10/24
+#  |                eth0                 |  2001:db8::10/24
+#  +-------------------------------------+
+
+source bond_topo_2d1c.sh
+mac[2]="00:0a:0b:0c:0d:03"
+
+setup_prepare()
+{
+	gateway_create
+	server_create
+	client_create
+
+	# Add the extra device as we use 3 down links for bond0
+	local i=2
+	ip -n ${s_ns} link add eth${i} type veth peer name s${i} netns ${g_ns}
+	ip -n "${s_ns}" link set "eth${i}" addr "${mac[$i]}"
+	ip -n ${g_ns} link set s${i} up
+	ip -n ${g_ns} link set s${i} master br0
+	ip -n ${s_ns} link set eth${i} master bond0
+	tc -n ${g_ns} qdisc add dev s${i} clsact
+}
diff --git a/tools/testing/selftests/drivers/net/bonding/config b/tools/testing/selftests/drivers/net/bonding/config
new file mode 100644
index 000000000000..991494376223
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/config
@@ -0,0 +1,21 @@
+CONFIG_BONDING=y
+CONFIG_BRIDGE=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_DUMMY=y
+CONFIG_INET_ESP=y
+CONFIG_INET_ESP_OFFLOAD=y
+CONFIG_IPV6=y
+CONFIG_IPVLAN=y
+CONFIG_MACVLAN=y
+CONFIG_NET_ACT_GACT=y
+CONFIG_NET_CLS_FLOWER=y
+CONFIG_NET_CLS_MATCHALL=m
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_NETCONSOLE_EXTENDED_LOG=y
+CONFIG_NETDEVSIM=m
+CONFIG_NET_SCH_INGRESS=y
+CONFIG_NLMON=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=m
+CONFIG_XFRM_USER=m
diff --git a/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh b/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh
new file mode 100755
index 000000000000..e6fa24eded5b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/dev_addr_lists.sh
@@ -0,0 +1,109 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test bond device handling of addr lists (dev->uc, mc)
+#
+
+ALL_TESTS="
+	bond_cleanup_mode1
+	bond_cleanup_mode4
+	bond_listen_lacpdu_multicast_case_down
+	bond_listen_lacpdu_multicast_case_up
+"
+
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+source "$lib_dir"/lag_lib.sh
+
+
+destroy()
+{
+	local ifnames=(dummy1 dummy2 bond1 mv0)
+	local ifname
+
+	for ifname in "${ifnames[@]}"; do
+		ip link del "$ifname" &>/dev/null
+	done
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	destroy
+}
+
+
+# bond driver control paths vary between modes that have a primary slave
+# (bond_uses_primary()) and others. Test both kinds of modes.
+
+bond_cleanup_mode1()
+{
+	RET=0
+
+	test_LAG_cleanup "bonding" "active-backup"
+}
+
+bond_cleanup_mode4() {
+	RET=0
+
+	test_LAG_cleanup "bonding" "802.3ad"
+}
+
+bond_listen_lacpdu_multicast()
+{
+	# Initial state of bond device, up | down
+	local init_state=$1
+	local lacpdu_mc="01:80:c2:00:00:02"
+
+	ip link add dummy1 type dummy
+	ip link add bond1 "$init_state" type bond mode 802.3ad
+	ip link set dev dummy1 master bond1
+	if [ "$init_state" = "down" ]; then
+		ip link set dev bond1 up
+	fi
+
+	grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+	check_err $? "LACPDU multicast address not present on slave (1)"
+
+	ip link set dev bond1 down
+
+	not grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+	check_err $? "LACPDU multicast address still present on slave"
+
+	ip link set dev bond1 up
+
+	grep_bridge_fdb "$lacpdu_mc" bridge fdb show brport dummy1 >/dev/null
+	check_err $? "LACPDU multicast address not present on slave (2)"
+
+	cleanup
+
+	log_test "bonding LACPDU multicast address to slave (from bond $init_state)"
+}
+
+# The LACPDU mc addr is added by different paths depending on the initial state
+# of the bond when enslaving a device. Test both cases.
+
+bond_listen_lacpdu_multicast_case_down()
+{
+	RET=0
+
+	bond_listen_lacpdu_multicast "down"
+}
+
+bond_listen_lacpdu_multicast_case_up()
+{
+	RET=0
+
+	bond_listen_lacpdu_multicast "up"
+}
+
+
+trap cleanup EXIT
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/lag_lib.sh b/tools/testing/selftests/drivers/net/bonding/lag_lib.sh
new file mode 100644
index 000000000000..bf9bcd1b5ec0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/lag_lib.sh
@@ -0,0 +1,177 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+NAMESPACES=""
+
+# Test that a link aggregation device (bonding, team) removes the hardware
+# addresses that it adds on its underlying devices.
+test_LAG_cleanup()
+{
+	local driver=$1
+	local mode=$2
+	local ucaddr="02:00:00:12:34:56"
+	local addr6="fe80::78:9abc/64"
+	local mcaddr="33:33:ff:78:9a:bc"
+	local name
+
+	ip link add dummy1 type dummy
+	ip link add dummy2 type dummy
+	if [ "$driver" = "bonding" ]; then
+		name="bond1"
+		ip link add "$name" up type bond mode "$mode"
+		ip link set dev dummy1 master "$name"
+		ip link set dev dummy2 master "$name"
+	elif [ "$driver" = "team" ]; then
+		name="team0"
+		teamd -d -c '
+			{
+				"device": "'"$name"'",
+				"runner": {
+					"name": "'"$mode"'"
+				},
+				"ports": {
+					"dummy1":
+						{},
+					"dummy2":
+						{}
+				}
+			}
+		'
+		ip link set dev "$name" up
+	else
+		check_err 1
+		log_test test_LAG_cleanup ": unknown driver \"$driver\""
+		return
+	fi
+
+	# Used to test dev->uc handling
+	ip link add mv0 link "$name" up address "$ucaddr" type macvlan
+	# Used to test dev->mc handling
+	ip address add "$addr6" dev "$name"
+
+	# Check that addresses were added as expected
+	(grep_bridge_fdb "$ucaddr" bridge fdb show dev dummy1 ||
+		grep_bridge_fdb "$ucaddr" bridge fdb show dev dummy2) >/dev/null
+	check_err $? "macvlan unicast address not found on a slave"
+
+	# mcaddr is added asynchronously by addrconf_dad_work(), use busywait
+	(busywait 10000 grep_bridge_fdb "$mcaddr" bridge fdb show dev dummy1 ||
+		grep_bridge_fdb "$mcaddr" bridge fdb show dev dummy2) >/dev/null
+	check_err $? "IPv6 solicited-node multicast mac address not found on a slave"
+
+	ip link set dev "$name" down
+	ip link del "$name"
+
+	not grep_bridge_fdb "$ucaddr" bridge fdb show >/dev/null
+	check_err $? "macvlan unicast address still present on a slave"
+
+	not grep_bridge_fdb "$mcaddr" bridge fdb show >/dev/null
+	check_err $? "IPv6 solicited-node multicast mac address still present on a slave"
+
+	cleanup
+
+	log_test "$driver cleanup mode $mode"
+}
+
+# Build a generic 2 node net namespace with 2 connections
+# between the namespaces
+#
+#  +-----------+       +-----------+
+#  | node1     |       | node2     |
+#  |           |       |           |
+#  |           |       |           |
+#  |      eth0 +-------+ eth0      |
+#  |           |       |           |
+#  |      eth1 +-------+ eth1      |
+#  |           |       |           |
+#  +-----------+       +-----------+
+lag_setup2x2()
+{
+	local state=${1:-down}
+	local namespaces="lag_node1 lag_node2"
+
+	# create namespaces
+	for n in ${namespaces}; do
+		ip netns add ${n}
+	done
+
+	# wire up namespaces
+	ip link add name lag1 type veth peer name lag1-end
+	ip link set dev lag1 netns lag_node1 $state name eth0
+	ip link set dev lag1-end netns lag_node2 $state name eth0
+
+	ip link add name lag1 type veth peer name lag1-end
+	ip link set dev lag1 netns lag_node1 $state name eth1
+	ip link set dev lag1-end netns lag_node2 $state name eth1
+
+	NAMESPACES="${namespaces}"
+}
+
+# cleanup all lag related namespaces
+lag_cleanup()
+{
+	for n in ${NAMESPACES}; do
+		ip netns delete ${n} >/dev/null 2>&1 || true
+	done
+}
+
+SWITCH="lag_node1"
+CLIENT="lag_node2"
+CLIENTIP="172.20.2.1"
+SWITCHIP="172.20.2.2"
+
+lag_setup_network()
+{
+	lag_setup2x2 "down"
+
+	# create switch
+	ip netns exec ${SWITCH} ip link add br0 up type bridge
+	ip netns exec ${SWITCH} ip link set eth0 master br0 up
+	ip netns exec ${SWITCH} ip link set eth1 master br0 up
+	ip netns exec ${SWITCH} ip addr add ${SWITCHIP}/24 dev br0
+}
+
+lag_reset_network()
+{
+	ip netns exec ${CLIENT} ip link del bond0
+	ip netns exec ${SWITCH} ip link set eth0 up
+	ip netns exec ${SWITCH} ip link set eth1 up
+}
+
+create_bond()
+{
+	# create client
+	ip netns exec ${CLIENT} ip link set eth0 down
+	ip netns exec ${CLIENT} ip link set eth1 down
+
+	ip netns exec ${CLIENT} ip link add bond0 type bond $@
+	ip netns exec ${CLIENT} ip link set eth0 master bond0
+	ip netns exec ${CLIENT} ip link set eth1 master bond0
+	ip netns exec ${CLIENT} ip link set bond0 up
+	ip netns exec ${CLIENT} ip addr add ${CLIENTIP}/24 dev bond0
+}
+
+test_bond_recovery()
+{
+	RET=0
+
+	create_bond $@
+
+	# verify connectivity
+	slowwait 2 ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 -W 0.1 &> /dev/null
+	check_err $? "No connectivity"
+
+	# force the links of the bond down
+	ip netns exec ${SWITCH} ip link set eth0 down
+	sleep 2
+	ip netns exec ${SWITCH} ip link set eth0 up
+	ip netns exec ${SWITCH} ip link set eth1 down
+
+	# re-verify connectivity
+	slowwait 2 ip netns exec ${CLIENT} ping ${SWITCHIP} -c 2 -W 0.1 &> /dev/null
+
+	local rc=$?
+	check_err $rc "Bond failed to recover"
+	log_test "$1 ($2) bond recovery"
+	lag_reset_network
+}
diff --git a/tools/testing/selftests/drivers/net/bonding/mode-1-recovery-updelay.sh b/tools/testing/selftests/drivers/net/bonding/mode-1-recovery-updelay.sh
new file mode 100755
index 000000000000..9d26ab4cad0b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/mode-1-recovery-updelay.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Regression Test:
+#  When the bond is configured with down/updelay and the link state of
+#  slave members flaps if there are no remaining members up the bond
+#  should immediately select a member to bring up. (from bonding.txt
+#  section 13.1 paragraph 4)
+#
+#  +-------------+       +-----------+
+#  | client      |       | switch    |
+#  |             |       |           |
+#  |    +--------| link1 |-----+     |
+#  |    |        +-------+     |     |
+#  |    |        |       |     |     |
+#  |    |        +-------+     |     |
+#  |    | bond   | link2 | Br0 |     |
+#  +-------------+       +-----------+
+#     172.20.2.1           172.20.2.2
+
+
+REQUIRE_MZ=no
+REQUIRE_JQ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source "$lib_dir"/lag_lib.sh
+
+cleanup()
+{
+	lag_cleanup
+}
+
+trap cleanup 0 1 2
+
+lag_setup_network
+test_bond_recovery mode 1 miimon 100 updelay 0
+test_bond_recovery mode 1 miimon 100 updelay 200
+test_bond_recovery mode 1 miimon 100 updelay 500
+test_bond_recovery mode 1 miimon 100 updelay 1000
+test_bond_recovery mode 1 miimon 100 updelay 2000
+test_bond_recovery mode 1 miimon 100 updelay 5000
+test_bond_recovery mode 1 miimon 100 updelay 10000
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/mode-2-recovery-updelay.sh b/tools/testing/selftests/drivers/net/bonding/mode-2-recovery-updelay.sh
new file mode 100755
index 000000000000..2d275b3e47dd
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/mode-2-recovery-updelay.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Regression Test:
+#  When the bond is configured with down/updelay and the link state of
+#  slave members flaps if there are no remaining members up the bond
+#  should immediately select a member to bring up. (from bonding.txt
+#  section 13.1 paragraph 4)
+#
+#  +-------------+       +-----------+
+#  | client      |       | switch    |
+#  |             |       |           |
+#  |    +--------| link1 |-----+     |
+#  |    |        +-------+     |     |
+#  |    |        |       |     |     |
+#  |    |        +-------+     |     |
+#  |    | bond   | link2 | Br0 |     |
+#  +-------------+       +-----------+
+#     172.20.2.1           172.20.2.2
+
+
+REQUIRE_MZ=no
+REQUIRE_JQ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source "$lib_dir"/lag_lib.sh
+
+cleanup()
+{
+	lag_cleanup
+}
+
+trap cleanup 0 1 2
+
+lag_setup_network
+test_bond_recovery mode 2 miimon 100 updelay 0
+test_bond_recovery mode 2 miimon 100 updelay 200
+test_bond_recovery mode 2 miimon 100 updelay 500
+test_bond_recovery mode 2 miimon 100 updelay 1000
+test_bond_recovery mode 2 miimon 100 updelay 2000
+test_bond_recovery mode 2 miimon 100 updelay 5000
+test_bond_recovery mode 2 miimon 100 updelay 10000
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/bonding/netcons_over_bonding.sh b/tools/testing/selftests/drivers/net/bonding/netcons_over_bonding.sh
new file mode 100755
index 000000000000..477cc9379500
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/netcons_over_bonding.sh
@@ -0,0 +1,361 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This selftest exercises trying to have multiple netpoll users at the same
+# time.
+#
+# This selftest has multiple smalls test inside, and the goal is to
+# get interfaces with bonding and netconsole in different orders in order
+# to catch any possible issue.
+#
+# The main test composes of four interfaces being created using netdevsim; two
+# of them are bonded to serve as the netconsole's transmit interface. The
+# remaining two interfaces are similarly bonded and assigned to a separate
+# network namespace, which acts as the receive interface, where socat monitors
+# for incoming messages.
+#
+# A netconsole message is then sent to ensure it is properly received across
+# this configuration.
+#
+# Later, run a few other tests, to make sure that bonding and netconsole
+# cannot coexist.
+#
+# The test's objective is to exercise netpoll usage when managed simultaneously
+# by multiple subsystems (netconsole and bonding).
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/../lib/sh/lib_netcons.sh
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+modprobe bonding 2> /dev/null || true
+modprobe veth 2> /dev/null || true
+
+# The content of kmsg will be save to the following file
+OUTPUT_FILE="/tmp/${TARGET}"
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
+echo "6 5" > /proc/sys/kernel/printk
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup_bond EXIT
+
+FORMAT="extended"
+IP_VERSION="ipv4"
+VETH0="veth"$(( RANDOM % 256))
+VETH1="veth"$((256 +  RANDOM % 256))
+TXNS=""
+RXNS=""
+
+# Create "bond_tx_XX" and "bond_rx_XX" interfaces, and set DSTIF and SRCIF with
+# the bonding interfaces
+function setup_bonding_ifaces() {
+	local RAND=$(( RANDOM % 100 ))
+	BOND_TX_MAIN_IF="bond_tx_$RAND"
+	BOND_RX_MAIN_IF="bond_rx_$RAND"
+
+	# Setup TX
+	if ! ip -n "${TXNS}" link add "${BOND_TX_MAIN_IF}" type bond mode balance-rr
+	then
+		echo "Failed to create bond TX interface. Is CONFIG_BONDING set?" >&2
+		# only clean nsim ifaces and namespace. Nothing else has been
+		# initialized
+		cleanup_bond_nsim
+		trap - EXIT
+		exit "${ksft_skip}"
+	fi
+
+	# create_netdevsim() got the interface up, but it needs to be down
+	# before being enslaved.
+	ip -n "${TXNS}" \
+		link set "${BOND_TX1_SLAVE_IF}" down
+	ip -n "${TXNS}" \
+		link set "${BOND_TX2_SLAVE_IF}" down
+	ip -n "${TXNS}" \
+		link set "${BOND_TX1_SLAVE_IF}" master "${BOND_TX_MAIN_IF}"
+	ip -n "${TXNS}" \
+		link set "${BOND_TX2_SLAVE_IF}" master "${BOND_TX_MAIN_IF}"
+	ip -n "${TXNS}" \
+		link set "${BOND_TX_MAIN_IF}" up
+
+	# Setup RX
+	ip -n "${RXNS}" \
+		link add "${BOND_RX_MAIN_IF}" type bond mode balance-rr
+	ip -n "${RXNS}" \
+		link set "${BOND_RX1_SLAVE_IF}" down
+	ip -n "${RXNS}" \
+		link set "${BOND_RX2_SLAVE_IF}" down
+	ip -n "${RXNS}" \
+		link set "${BOND_RX1_SLAVE_IF}" master "${BOND_RX_MAIN_IF}"
+	ip -n "${RXNS}" \
+		link set "${BOND_RX2_SLAVE_IF}" master "${BOND_RX_MAIN_IF}"
+	ip -n "${RXNS}" \
+		link set "${BOND_RX_MAIN_IF}" up
+
+	export DSTIF="${BOND_RX_MAIN_IF}"
+	export SRCIF="${BOND_TX_MAIN_IF}"
+}
+
+# Create 4 netdevsim interfaces. Two of them will be bound to TX bonding iface
+# and the other two will be bond to the RX interface (on the other namespace)
+function create_ifaces_bond() {
+	BOND_TX1_SLAVE_IF=$(create_netdevsim "${NSIM_BOND_TX_1}" "${TXNS}")
+	BOND_TX2_SLAVE_IF=$(create_netdevsim "${NSIM_BOND_TX_2}" "${TXNS}")
+	BOND_RX1_SLAVE_IF=$(create_netdevsim "${NSIM_BOND_RX_1}" "${RXNS}")
+	BOND_RX2_SLAVE_IF=$(create_netdevsim "${NSIM_BOND_RX_2}" "${RXNS}")
+}
+
+# netdevsim link BOND_TX to BOND_RX interfaces
+function link_ifaces_bond() {
+	local BOND_TX1_SLAVE_IFIDX
+	local BOND_TX2_SLAVE_IFIDX
+	local BOND_RX1_SLAVE_IFIDX
+	local BOND_RX2_SLAVE_IFIDX
+	local TXNS_FD
+	local RXNS_FD
+
+	BOND_TX1_SLAVE_IFIDX=$(ip netns exec "${TXNS}" \
+				cat /sys/class/net/"$BOND_TX1_SLAVE_IF"/ifindex)
+	BOND_TX2_SLAVE_IFIDX=$(ip netns exec "${TXNS}" \
+				cat /sys/class/net/"$BOND_TX2_SLAVE_IF"/ifindex)
+	BOND_RX1_SLAVE_IFIDX=$(ip netns exec "${RXNS}" \
+				cat /sys/class/net/"$BOND_RX1_SLAVE_IF"/ifindex)
+	BOND_RX2_SLAVE_IFIDX=$(ip netns exec "${RXNS}" \
+				cat /sys/class/net/"$BOND_RX2_SLAVE_IF"/ifindex)
+
+	exec {TXNS_FD}</var/run/netns/"${TXNS}"
+	exec {RXNS_FD}</var/run/netns/"${RXNS}"
+
+	# Linking TX ifaces to the RX ones (on the other namespace)
+	echo "${TXNS_FD}:$BOND_TX1_SLAVE_IFIDX $RXNS_FD:$BOND_RX1_SLAVE_IFIDX"  \
+		> "$NSIM_DEV_SYS_LINK"
+	echo "${TXNS_FD}:$BOND_TX2_SLAVE_IFIDX $RXNS_FD:$BOND_RX2_SLAVE_IFIDX"  \
+		> "$NSIM_DEV_SYS_LINK"
+
+	exec {TXNS_FD}<&-
+	exec {RXNS_FD}<&-
+}
+
+function create_all_ifaces() {
+	# setup_ns function is coming from lib.sh
+	setup_ns TXNS RXNS
+	export NAMESPACE="${RXNS}"
+
+	# Create two interfaces for RX and two for TX
+	create_ifaces_bond
+	# Link netlink ifaces
+	link_ifaces_bond
+}
+
+# configure DSTIF and SRCIF IPs
+function configure_ifaces_ips() {
+	local IP_VERSION=${1:-"ipv4"}
+	select_ipv4_or_ipv6 "${IP_VERSION}"
+
+	ip -n "${RXNS}" addr add "${DSTIP}"/24 dev "${DSTIF}"
+	ip -n "${RXNS}" link set "${DSTIF}" up
+
+	ip -n "${TXNS}" addr add "${SRCIP}"/24 dev "${SRCIF}"
+	ip -n "${TXNS}" link set "${SRCIF}" up
+}
+
+function test_enable_netpoll_on_enslaved_iface() {
+	echo 0 > "${NETCONS_PATH}"/enabled
+
+	# At this stage, BOND_TX1_SLAVE_IF is enslaved to BOND_TX_MAIN_IF, and
+	# linked to BOND_RX1_SLAVE_IF inside the namespace.
+	echo "${BOND_TX1_SLAVE_IF}" > "${NETCONS_PATH}"/dev_name
+
+	# This should fail with the following message in dmesg:
+	# netpoll: netconsole: ethX is a slave device, aborting
+	set +e
+	enable_netcons_ns 2> /dev/null
+	set -e
+
+	if [[ $(cat "${NETCONS_PATH}"/enabled) -eq 1 ]]
+	then
+		echo "test failed: Bonding and netpoll cannot co-exists." >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+function test_delete_bond_and_reenable_target() {
+	ip -n "${TXNS}" \
+		link delete "${BOND_TX_MAIN_IF}" type bond
+
+	# BOND_TX1_SLAVE_IF is not attached to a bond interface anymore
+	# netpoll can be plugged in there
+	echo "${BOND_TX1_SLAVE_IF}" > "${NETCONS_PATH}"/dev_name
+
+	# this should work, since the interface is not enslaved
+	enable_netcons_ns
+
+	if [[ $(cat "${NETCONS_PATH}"/enabled) -eq 0 ]]
+	then
+		echo "test failed: Unable to start netpoll on an unbond iface." >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+# Send a netconsole message to the netconsole target
+function test_send_netcons_msg_through_bond_iface() {
+	# Listen for netconsole port inside the namespace and
+	# destination interface
+	listen_port_and_save_to "${OUTPUT_FILE}" "${IP_VERSION}" &
+	# Wait for socat to start and listen to the port.
+	wait_for_port "${RXNS}" "${PORT}" "${IP_VERSION}"
+	# Send the message
+	echo "${MSG}: ${TARGET}" > /dev/kmsg
+	# Wait until socat saves the file to disk
+	busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+	# Make sure the message was received in the dst part
+	# and exit
+	validate_result "${OUTPUT_FILE}" "${FORMAT}"
+	# kill socat in case it is still running
+	pkill_socat
+}
+
+# BOND_TX1_SLAVE_IF has netconsole enabled on it, bind it to BOND_TX_MAIN_IF.
+# Given BOND_TX_MAIN_IF was deleted, recreate it first
+function test_enslave_netcons_enabled_iface {
+	# netconsole got disabled while the interface was down
+	if [[ $(cat "${NETCONS_PATH}"/enabled) -eq 0 ]]
+	then
+		echo "test failed: netconsole expected to be enabled against BOND_TX1_SLAVE_IF" >&2
+		exit "${ksft_fail}"
+	fi
+
+	# recreate the bonding iface. it got deleted by previous
+	# test (test_delete_bond_and_reenable_target)
+	ip -n "${TXNS}" \
+		link add "${BOND_TX_MAIN_IF}" type bond mode balance-rr
+
+	# sub-interface need to be down before attaching to bonding
+	# This will also disable netconsole.
+	ip -n "${TXNS}" \
+		link set "${BOND_TX1_SLAVE_IF}" down
+	ip -n "${TXNS}" \
+		link set "${BOND_TX1_SLAVE_IF}" master "${BOND_TX_MAIN_IF}"
+	ip -n "${TXNS}" \
+		link set "${BOND_TX_MAIN_IF}" up
+
+	# netconsole got disabled while the interface was down
+	if [[ $(cat "${NETCONS_PATH}"/enabled) -eq 1 ]]
+	then
+		echo "test failed: Device is part of a bond iface, cannot have netcons enabled" >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+# Get netconsole enabled on a bonding interface and attach a second
+# sub-interface.
+function test_enslave_iface_to_bond {
+	# BOND_TX_MAIN_IF has only BOND_TX1_SLAVE_IF right now
+	echo "${BOND_TX_MAIN_IF}" > "${NETCONS_PATH}"/dev_name
+	enable_netcons_ns
+
+	# netcons is attached to bond0 and BOND_TX1_SLAVE_IF is
+	# part of BOND_TX_MAIN_IF. Attach BOND_TX2_SLAVE_IF to BOND_TX_MAIN_IF.
+	ip -n "${TXNS}" \
+		link set "${BOND_TX2_SLAVE_IF}" master "${BOND_TX_MAIN_IF}"
+	if [[ $(cat "${NETCONS_PATH}"/enabled) -eq 0 ]]
+	then
+		echo "test failed: Netconsole should be enabled on bonding interface. Failed" >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+function test_enslave_iff_disabled_netpoll_iface {
+	local ret
+
+	# Create two interfaces. veth interfaces it known to have
+	# IFF_DISABLE_NETPOLL set
+	if ! ip link add "${VETH0}" type veth peer name "${VETH1}"
+	then
+		echo "Failed to create veth TX interface. Is CONFIG_VETH set?" >&2
+		exit "${ksft_skip}"
+	fi
+	set +e
+	# This will print RTNETLINK answers: Device or resource busy
+	ip link set "${VETH0}" master "${BOND_TX_MAIN_IF}" 2> /dev/null
+	ret=$?
+	set -e
+	if [[ $ret -eq 0 ]]
+	then
+		echo "test failed: veth interface could not be enslaved"
+		exit "${ksft_fail}"
+	fi
+}
+
+# Given that netconsole picks the current net namespace, we need to enable it
+# from inside the TXNS namespace
+function enable_netcons_ns() {
+	ip netns exec "${TXNS}" sh -c \
+		"mount -t configfs configfs /sys/kernel/config && echo 1 > $NETCONS_PATH/enabled"
+}
+
+####################
+# Tests start here #
+####################
+
+# Create regular interfaces using netdevsim and link them
+create_all_ifaces
+
+# Setup the bonding interfaces
+# BOND_RX_MAIN_IF has BOND_RX{1,2}_SLAVE_IF
+# BOND_TX_MAIN_IF has BOND_TX{1,2}_SLAVE_IF
+setup_bonding_ifaces
+
+# Configure the ips as BOND_RX1_SLAVE_IF and BOND_TX1_SLAVE_IF
+configure_ifaces_ips "${IP_VERSION}"
+
+_create_dynamic_target "${FORMAT}" "${NETCONS_PATH}"
+enable_netcons_ns
+set_user_data
+
+# Test #1 : Create an bonding interface and attach netpoll into
+# the bonding interface. Netconsole/netpoll should work on
+# the bonding interface.
+test_send_netcons_msg_through_bond_iface
+echo "test #1: netpoll on bonding interface worked. Test passed" >&2
+
+# Test #2: Attach netpoll to an enslaved interface
+# Try to attach netpoll to an enslaved sub-interface (while still being part of
+# a bonding interface), which shouldn't be allowed
+test_enable_netpoll_on_enslaved_iface
+echo "test #2: netpoll correctly rejected enslaved interface (expected behavior). Test passed." >&2
+
+# Test #3: Unplug the sub-interface from bond and enable netconsole
+# Detach the interface from a bonding interface and attach netpoll again
+test_delete_bond_and_reenable_target
+echo "test #3: Able to attach to an unbound interface. Test passed." >&2
+
+# Test #4: Enslave a sub-interface that had netconsole enabled
+# Try to enslave an interface that has netconsole/netpoll enabled.
+# Previous test has netconsole enabled in BOND_TX1_SLAVE_IF, try to enslave it
+test_enslave_netcons_enabled_iface
+echo "test #4: Enslaving an interface with netpoll attached. Test passed." >&2
+
+# Test #5: Enslave a sub-interface to a bonding interface
+# Enslave an interface to a bond interface that has netpoll attached
+# At this stage, BOND_TX_MAIN_IF is created and BOND_TX1_SLAVE_IF is part of
+# it. Netconsole is currently disabled
+test_enslave_iface_to_bond
+echo "test #5: Enslaving an interface to bond+netpoll. Test passed." >&2
+
+# Test #6: Enslave a IFF_DISABLE_NETPOLL sub-interface to a bonding interface
+# At this stage, BOND_TX_MAIN_IF has both sub interface and netconsole is
+# enabled. This test will try to enslave an a veth (IFF_DISABLE_NETPOLL) interface
+# and it should fail, with netpoll: veth0 doesn't support polling
+test_enslave_iff_disabled_netpoll_iface
+echo "test #6: Enslaving IFF_DISABLE_NETPOLL ifaces to bond iface is not supported. Test passed." >&2
+
+cleanup_bond
+trap - EXIT
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/drivers/net/bonding/settings b/tools/testing/selftests/drivers/net/bonding/settings
new file mode 100644
index 000000000000..79b65bdf05db
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/bonding/settings
@@ -0,0 +1 @@
+timeout=1200
diff --git a/tools/testing/selftests/drivers/net/config b/tools/testing/selftests/drivers/net/config
new file mode 100644
index 000000000000..77ccf83d87e0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/config
@@ -0,0 +1,10 @@
+CONFIG_CONFIGFS_FS=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_BTF_MODULES=n
+CONFIG_INET_PSP=y
+CONFIG_IPV6=y
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_NETCONSOLE_EXTENDED_LOG=y
+CONFIG_NETDEVSIM=m
+CONFIG_XDP_SOCKETS=y
diff --git a/tools/testing/selftests/drivers/net/dsa/Makefile b/tools/testing/selftests/drivers/net/dsa/Makefile
new file mode 100644
index 000000000000..7994bd0e5c44
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/Makefile
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS := \
+	bridge_locked_port.sh \
+	bridge_mdb.sh \
+	bridge_mld.sh \
+	bridge_vlan_aware.sh \
+	bridge_vlan_mcast.sh \
+	bridge_vlan_unaware.sh \
+	local_termination.sh \
+	no_forwarding.sh \
+	tc_actions.sh \
+	test_bridge_fdb_stress.sh \
+# end of TEST_PROGS
+
+TEST_FILES := \
+	forwarding.config \
+	run_net_forwarding_test.sh \
+# end of TEST_FILES
+
+TEST_INCLUDES := \
+	../../../net/forwarding/bridge_locked_port.sh \
+	../../../net/forwarding/bridge_mdb.sh \
+	../../../net/forwarding/bridge_mld.sh \
+	../../../net/forwarding/bridge_vlan_aware.sh \
+	../../../net/forwarding/bridge_vlan_mcast.sh \
+	../../../net/forwarding/bridge_vlan_unaware.sh \
+	../../../net/forwarding/lib.sh \
+	../../../net/forwarding/local_termination.sh \
+	../../../net/forwarding/no_forwarding.sh \
+	../../../net/forwarding/tc_actions.sh \
+	../../../net/forwarding/tc_common.sh \
+	../../../net/lib.sh \
+# end of TEST_INCLUDES
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_locked_port.sh b/tools/testing/selftests/drivers/net/dsa/bridge_locked_port.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_locked_port.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_mdb.sh b/tools/testing/selftests/drivers/net/dsa/bridge_mdb.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_mdb.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_mld.sh b/tools/testing/selftests/drivers/net/dsa/bridge_mld.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_mld.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_vlan_aware.sh b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_aware.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_aware.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_vlan_mcast.sh b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_mcast.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_mcast.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/bridge_vlan_unaware.sh b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_unaware.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/bridge_vlan_unaware.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/forwarding.config b/tools/testing/selftests/drivers/net/dsa/forwarding.config
new file mode 100644
index 000000000000..7adc1396fae0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/forwarding.config
@@ -0,0 +1,2 @@
+NETIF_CREATE=no
+STABLE_MAC_ADDRS=yes
diff --git a/tools/testing/selftests/drivers/net/dsa/local_termination.sh b/tools/testing/selftests/drivers/net/dsa/local_termination.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/local_termination.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/no_forwarding.sh b/tools/testing/selftests/drivers/net/dsa/no_forwarding.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/no_forwarding.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
new file mode 100755
index 000000000000..4106c0a102ea
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/run_net_forwarding_test.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+libdir=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
+testname=$(basename "${BASH_SOURCE[0]}")
+
+source "$libdir"/forwarding.config
+cd "$libdir"/../../../net/forwarding/ || exit 1
+source "./$testname" "$@"
diff --git a/tools/testing/selftests/drivers/net/dsa/tc_actions.sh b/tools/testing/selftests/drivers/net/dsa/tc_actions.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/tc_actions.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/tc_taprio.sh b/tools/testing/selftests/drivers/net/dsa/tc_taprio.sh
new file mode 120000
index 000000000000..d16a65e7595d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/tc_taprio.sh
@@ -0,0 +1 @@
+run_net_forwarding_test.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh b/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh
new file mode 100755
index 000000000000..74682151d04d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/test_bridge_fdb_stress.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Bridge FDB entries can be offloaded to DSA switches without holding the
+# rtnl_mutex. Traditionally this mutex has conferred drivers implicit
+# serialization, which means their code paths are not well tested in the
+# presence of concurrency.
+# This test creates a background task that stresses the FDB by adding and
+# deleting an entry many times in a row without the rtnl_mutex held.
+# It then tests the driver resistance to concurrency by calling .ndo_fdb_dump
+# (with rtnl_mutex held) from a foreground task.
+# Since either the FDB dump or the additions/removals can fail, but the
+# additions and removals are performed in deferred as opposed to process
+# context, we cannot simply check for user space error codes.
+
+WAIT_TIME=1
+NUM_NETIFS=1
+REQUIRE_JQ="no"
+REQUIRE_MZ="no"
+NETIF_CREATE="no"
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+cleanup() {
+	echo "Cleaning up"
+	kill $pid && wait $pid &> /dev/null
+	ip link del br0
+	echo "Please check kernel log for errors"
+}
+trap 'cleanup' EXIT
+
+eth=${NETIFS[p1]}
+
+ip link del br0 2>&1 >/dev/null || :
+ip link add br0 type bridge && ip link set $eth master br0
+
+(while :; do
+	bridge fdb add 00:01:02:03:04:05 dev $eth master static
+	bridge fdb del 00:01:02:03:04:05 dev $eth master static
+done) &
+pid=$!
+
+for i in $(seq 1 50); do
+	bridge fdb show > /dev/null
+	sleep 3
+	echo "$((${i} * 2))% complete..."
+done
diff --git a/tools/testing/selftests/drivers/net/gro.c b/tools/testing/selftests/drivers/net/gro.c
new file mode 100644
index 000000000000..e894037d2e3e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/gro.c
@@ -0,0 +1,1369 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This testsuite provides conformance testing for GRO coalescing.
+ *
+ * Test cases:
+ * 1.data
+ *  Data packets of the same size and same header setup with correct
+ *  sequence numbers coalesce. The one exception being the last data
+ *  packet coalesced: it can be smaller than the rest and coalesced
+ *  as long as it is in the same flow.
+ * 2.ack
+ *  Pure ACK does not coalesce.
+ * 3.flags
+ *  Specific test cases: no packets with PSH, SYN, URG, RST set will
+ *  be coalesced.
+ * 4.tcp
+ *  Packets with incorrect checksum, non-consecutive seqno and
+ *  different TCP header options shouldn't coalesce. Nit: given that
+ *  some extension headers have paddings, such as timestamp, headers
+ *  that are padding differently would not be coalesced.
+ * 5.ip:
+ *  Packets with different (ECN, TTL, TOS) header, ip options or
+ *  ip fragments (ipv6) shouldn't coalesce.
+ * 6.large:
+ *  Packets larger than GRO_MAX_SIZE packets shouldn't coalesce.
+ *
+ * MSS is defined as 4096 - header because if it is too small
+ * (i.e. 1500 MTU - header), it will result in many packets,
+ * increasing the "large" test case's flakiness. This is because
+ * due to time sensitivity in the coalescing window, the receiver
+ * may not coalesce all of the packets.
+ *
+ * Note the timing issue applies to all of the test cases, so some
+ * flakiness is to be expected.
+ *
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <getopt.h>
+#include <linux/filter.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+#include "../../net/lib/ksft.h"
+
+#define DPORT 8000
+#define SPORT 1500
+#define PAYLOAD_LEN 100
+#define NUM_PACKETS 4
+#define START_SEQ 100
+#define START_ACK 100
+#define ETH_P_NONE 0
+#define TOTAL_HDR_LEN (ETH_HLEN + sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
+#define MSS (4096 - sizeof(struct tcphdr) - sizeof(struct ipv6hdr))
+#define MAX_PAYLOAD (IP_MAXPACKET - sizeof(struct tcphdr) - sizeof(struct ipv6hdr))
+#define NUM_LARGE_PKT (MAX_PAYLOAD / MSS)
+#define MAX_HDR_LEN (ETH_HLEN + sizeof(struct ipv6hdr) + sizeof(struct tcphdr))
+#define MIN_EXTHDR_SIZE 8
+#define EXT_PAYLOAD_1 "\x00\x00\x00\x00\x00\x00"
+#define EXT_PAYLOAD_2 "\x11\x11\x11\x11\x11\x11"
+
+#define ipv6_optlen(p)  (((p)->hdrlen+1) << 3) /* calculate IPv6 extension header len */
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+static const char *addr6_src = "fdaa::2";
+static const char *addr6_dst = "fdaa::1";
+static const char *addr4_src = "192.168.1.200";
+static const char *addr4_dst = "192.168.1.100";
+static int proto = -1;
+static uint8_t src_mac[ETH_ALEN], dst_mac[ETH_ALEN];
+static char *testname = "data";
+static char *ifname = "eth0";
+static char *smac = "aa:00:00:00:00:02";
+static char *dmac = "aa:00:00:00:00:01";
+static bool verbose;
+static bool tx_socket = true;
+static int tcp_offset = -1;
+static int total_hdr_len = -1;
+static int ethhdr_proto = -1;
+static bool ipip;
+static const int num_flush_id_cases = 6;
+
+static void vlog(const char *fmt, ...)
+{
+	va_list args;
+
+	if (verbose) {
+		va_start(args, fmt);
+		vfprintf(stderr, fmt, args);
+		va_end(args);
+	}
+}
+
+static void setup_sock_filter(int fd)
+{
+	const int dport_off = tcp_offset + offsetof(struct tcphdr, dest);
+	const int ethproto_off = offsetof(struct ethhdr, h_proto);
+	int optlen = 0;
+	int ipproto_off, opt_ipproto_off;
+	int next_off;
+
+	if (ipip)
+		next_off = sizeof(struct iphdr) + offsetof(struct iphdr, protocol);
+	else if (proto == PF_INET)
+		next_off = offsetof(struct iphdr, protocol);
+	else
+		next_off = offsetof(struct ipv6hdr, nexthdr);
+	ipproto_off = ETH_HLEN + next_off;
+
+	/* Overridden later if exthdrs are used: */
+	opt_ipproto_off = ipproto_off;
+
+	if (strcmp(testname, "ip") == 0) {
+		if (proto == PF_INET)
+			optlen = sizeof(struct ip_timestamp);
+		else {
+			BUILD_BUG_ON(sizeof(struct ip6_hbh) > MIN_EXTHDR_SIZE);
+			BUILD_BUG_ON(sizeof(struct ip6_dest) > MIN_EXTHDR_SIZE);
+			BUILD_BUG_ON(sizeof(struct ip6_frag) > MIN_EXTHDR_SIZE);
+
+			/* same size for HBH and Fragment extension header types */
+			optlen = MIN_EXTHDR_SIZE;
+			opt_ipproto_off = ETH_HLEN + sizeof(struct ipv6hdr)
+				+ offsetof(struct ip6_ext, ip6e_nxt);
+		}
+	}
+
+	/* this filter validates the following:
+	 *	- packet is IPv4/IPv6 according to the running test.
+	 *	- packet is TCP. Also handles the case of one extension header and then TCP.
+	 *	- checks the packet tcp dport equals to DPORT. Also handles the case of one
+	 *	  extension header and then TCP.
+	 */
+	struct sock_filter filter[] = {
+			BPF_STMT(BPF_LD  + BPF_H   + BPF_ABS, ethproto_off),
+			BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, ntohs(ethhdr_proto), 0, 9),
+			BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, ipproto_off),
+			BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_TCP, 2, 0),
+			BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, opt_ipproto_off),
+			BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_TCP, 0, 5),
+			BPF_STMT(BPF_LD  + BPF_H   + BPF_ABS, dport_off),
+			BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, DPORT, 2, 0),
+			BPF_STMT(BPF_LD  + BPF_H   + BPF_ABS, dport_off + optlen),
+			BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, DPORT, 0, 1),
+			BPF_STMT(BPF_RET + BPF_K, 0xFFFFFFFF),
+			BPF_STMT(BPF_RET + BPF_K, 0),
+	};
+
+	struct sock_fprog bpf = {
+		.len = ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf, sizeof(bpf)) < 0)
+		error(1, errno, "error setting filter");
+}
+
+static uint32_t checksum_nofold(void *data, size_t len, uint32_t sum)
+{
+	uint16_t *words = data;
+	int i;
+
+	for (i = 0; i < len / 2; i++)
+		sum += words[i];
+	if (len & 1)
+		sum += ((char *)data)[len - 1];
+	return sum;
+}
+
+static uint16_t checksum_fold(void *data, size_t len, uint32_t sum)
+{
+	sum = checksum_nofold(data, len, sum);
+	while (sum > 0xFFFF)
+		sum = (sum & 0xFFFF) + (sum >> 16);
+	return ~sum;
+}
+
+static uint16_t tcp_checksum(void *buf, int payload_len)
+{
+	struct pseudo_header6 {
+		struct in6_addr saddr;
+		struct in6_addr daddr;
+		uint16_t protocol;
+		uint16_t payload_len;
+	} ph6;
+	struct pseudo_header4 {
+		struct in_addr saddr;
+		struct in_addr daddr;
+		uint16_t protocol;
+		uint16_t payload_len;
+	} ph4;
+	uint32_t sum = 0;
+
+	if (proto == PF_INET6) {
+		if (inet_pton(AF_INET6, addr6_src, &ph6.saddr) != 1)
+			error(1, errno, "inet_pton6 source ip pseudo");
+		if (inet_pton(AF_INET6, addr6_dst, &ph6.daddr) != 1)
+			error(1, errno, "inet_pton6 dest ip pseudo");
+		ph6.protocol = htons(IPPROTO_TCP);
+		ph6.payload_len = htons(sizeof(struct tcphdr) + payload_len);
+
+		sum = checksum_nofold(&ph6, sizeof(ph6), 0);
+	} else if (proto == PF_INET) {
+		if (inet_pton(AF_INET, addr4_src, &ph4.saddr) != 1)
+			error(1, errno, "inet_pton source ip pseudo");
+		if (inet_pton(AF_INET, addr4_dst, &ph4.daddr) != 1)
+			error(1, errno, "inet_pton dest ip pseudo");
+		ph4.protocol = htons(IPPROTO_TCP);
+		ph4.payload_len = htons(sizeof(struct tcphdr) + payload_len);
+
+		sum = checksum_nofold(&ph4, sizeof(ph4), 0);
+	}
+
+	return checksum_fold(buf, sizeof(struct tcphdr) + payload_len, sum);
+}
+
+static void read_MAC(uint8_t *mac_addr, char *mac)
+{
+	if (sscanf(mac, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
+		   &mac_addr[0], &mac_addr[1], &mac_addr[2],
+		   &mac_addr[3], &mac_addr[4], &mac_addr[5]) != 6)
+		error(1, 0, "sscanf");
+}
+
+static void fill_datalinklayer(void *buf)
+{
+	struct ethhdr *eth = buf;
+
+	memcpy(eth->h_dest, dst_mac, ETH_ALEN);
+	memcpy(eth->h_source, src_mac, ETH_ALEN);
+	eth->h_proto = ethhdr_proto;
+}
+
+static void fill_networklayer(void *buf, int payload_len, int protocol)
+{
+	struct ipv6hdr *ip6h = buf;
+	struct iphdr *iph = buf;
+
+	if (proto == PF_INET6) {
+		memset(ip6h, 0, sizeof(*ip6h));
+
+		ip6h->version = 6;
+		ip6h->payload_len = htons(sizeof(struct tcphdr) + payload_len);
+		ip6h->nexthdr = protocol;
+		ip6h->hop_limit = 8;
+		if (inet_pton(AF_INET6, addr6_src, &ip6h->saddr) != 1)
+			error(1, errno, "inet_pton source ip6");
+		if (inet_pton(AF_INET6, addr6_dst, &ip6h->daddr) != 1)
+			error(1, errno, "inet_pton dest ip6");
+	} else if (proto == PF_INET) {
+		memset(iph, 0, sizeof(*iph));
+
+		iph->version = 4;
+		iph->ihl = 5;
+		iph->ttl = 8;
+		iph->protocol	= protocol;
+		iph->tot_len = htons(sizeof(struct tcphdr) +
+				payload_len + sizeof(struct iphdr));
+		iph->frag_off = htons(0x4000); /* DF = 1, MF = 0 */
+		if (inet_pton(AF_INET, addr4_src, &iph->saddr) != 1)
+			error(1, errno, "inet_pton source ip");
+		if (inet_pton(AF_INET, addr4_dst, &iph->daddr) != 1)
+			error(1, errno, "inet_pton dest ip");
+		iph->check = checksum_fold(buf, sizeof(struct iphdr), 0);
+	}
+}
+
+static void fill_transportlayer(void *buf, int seq_offset, int ack_offset,
+				int payload_len, int fin)
+{
+	struct tcphdr *tcph = buf;
+
+	memset(tcph, 0, sizeof(*tcph));
+
+	tcph->source = htons(SPORT);
+	tcph->dest = htons(DPORT);
+	tcph->seq = ntohl(START_SEQ + seq_offset);
+	tcph->ack_seq = ntohl(START_ACK + ack_offset);
+	tcph->ack = 1;
+	tcph->fin = fin;
+	tcph->doff = 5;
+	tcph->window = htons(TCP_MAXWIN);
+	tcph->urg_ptr = 0;
+	tcph->check = tcp_checksum(tcph, payload_len);
+}
+
+static void write_packet(int fd, char *buf, int len, struct sockaddr_ll *daddr)
+{
+	int ret = -1;
+
+	ret = sendto(fd, buf, len, 0, (struct sockaddr *)daddr, sizeof(*daddr));
+	if (ret == -1)
+		error(1, errno, "sendto failure");
+	if (ret != len)
+		error(1, errno, "sendto wrong length");
+}
+
+static void create_packet(void *buf, int seq_offset, int ack_offset,
+			  int payload_len, int fin)
+{
+	memset(buf, 0, total_hdr_len);
+	memset(buf + total_hdr_len, 'a', payload_len);
+
+	fill_transportlayer(buf + tcp_offset, seq_offset, ack_offset,
+			    payload_len, fin);
+
+	if (ipip) {
+		fill_networklayer(buf + ETH_HLEN, payload_len + sizeof(struct iphdr),
+				  IPPROTO_IPIP);
+		fill_networklayer(buf + ETH_HLEN + sizeof(struct iphdr),
+				  payload_len, IPPROTO_TCP);
+	} else {
+		fill_networklayer(buf + ETH_HLEN, payload_len, IPPROTO_TCP);
+	}
+
+	fill_datalinklayer(buf);
+}
+
+/* send one extra flag, not first and not last pkt */
+static void send_flags(int fd, struct sockaddr_ll *daddr, int psh, int syn,
+		       int rst, int urg)
+{
+	static char flag_buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	int payload_len, pkt_size, flag, i;
+	struct tcphdr *tcph;
+
+	payload_len = PAYLOAD_LEN * psh;
+	pkt_size = total_hdr_len + payload_len;
+	flag = NUM_PACKETS / 2;
+
+	create_packet(flag_buf, flag * payload_len, 0, payload_len, 0);
+
+	tcph = (struct tcphdr *)(flag_buf + tcp_offset);
+	tcph->psh = psh;
+	tcph->syn = syn;
+	tcph->rst = rst;
+	tcph->urg = urg;
+	tcph->check = 0;
+	tcph->check = tcp_checksum(tcph, payload_len);
+
+	for (i = 0; i < NUM_PACKETS + 1; i++) {
+		if (i == flag) {
+			write_packet(fd, flag_buf, pkt_size, daddr);
+			continue;
+		}
+		create_packet(buf, i * PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+		write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);
+	}
+}
+
+/* Test for data of same length, smaller than previous
+ * and of different lengths
+ */
+static void send_data_pkts(int fd, struct sockaddr_ll *daddr,
+			   int payload_len1, int payload_len2)
+{
+	static char buf[ETH_HLEN + IP_MAXPACKET];
+
+	create_packet(buf, 0, 0, payload_len1, 0);
+	write_packet(fd, buf, total_hdr_len + payload_len1, daddr);
+	create_packet(buf, payload_len1, 0, payload_len2, 0);
+	write_packet(fd, buf, total_hdr_len + payload_len2, daddr);
+}
+
+/* If incoming segments make tracked segment length exceed
+ * legal IP datagram length, do not coalesce
+ */
+static void send_large(int fd, struct sockaddr_ll *daddr, int remainder)
+{
+	static char pkts[NUM_LARGE_PKT][TOTAL_HDR_LEN + MSS];
+	static char last[TOTAL_HDR_LEN + MSS];
+	static char new_seg[TOTAL_HDR_LEN + MSS];
+	int i;
+
+	for (i = 0; i < NUM_LARGE_PKT; i++)
+		create_packet(pkts[i], i * MSS, 0, MSS, 0);
+	create_packet(last, NUM_LARGE_PKT * MSS, 0, remainder, 0);
+	create_packet(new_seg, (NUM_LARGE_PKT + 1) * MSS, 0, remainder, 0);
+
+	for (i = 0; i < NUM_LARGE_PKT; i++)
+		write_packet(fd, pkts[i], total_hdr_len + MSS, daddr);
+	write_packet(fd, last, total_hdr_len + remainder, daddr);
+	write_packet(fd, new_seg, total_hdr_len + remainder, daddr);
+}
+
+/* Pure acks and dup acks don't coalesce */
+static void send_ack(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN];
+
+	create_packet(buf, 0, 0, 0, 0);
+	write_packet(fd, buf, total_hdr_len, daddr);
+	write_packet(fd, buf, total_hdr_len, daddr);
+	create_packet(buf, 0, 1, 0, 0);
+	write_packet(fd, buf, total_hdr_len, daddr);
+}
+
+static void recompute_packet(char *buf, char *no_ext, int extlen)
+{
+	struct tcphdr *tcphdr = (struct tcphdr *)(buf + tcp_offset);
+	struct ipv6hdr *ip6h = (struct ipv6hdr *)(buf + ETH_HLEN);
+	struct iphdr *iph = (struct iphdr *)(buf + ETH_HLEN);
+
+	memmove(buf, no_ext, total_hdr_len);
+	memmove(buf + total_hdr_len + extlen,
+		no_ext + total_hdr_len, PAYLOAD_LEN);
+
+	tcphdr->doff = tcphdr->doff + (extlen / 4);
+	tcphdr->check = 0;
+	tcphdr->check = tcp_checksum(tcphdr, PAYLOAD_LEN + extlen);
+	if (proto == PF_INET) {
+		iph->tot_len = htons(ntohs(iph->tot_len) + extlen);
+		iph->check = 0;
+		iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+
+		if (ipip) {
+			iph += 1;
+			iph->tot_len = htons(ntohs(iph->tot_len) + extlen);
+			iph->check = 0;
+			iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+		}
+	} else {
+		ip6h->payload_len = htons(ntohs(ip6h->payload_len) + extlen);
+	}
+}
+
+static void tcp_write_options(char *buf, int kind, int ts)
+{
+	struct tcp_option_ts {
+		uint8_t kind;
+		uint8_t len;
+		uint32_t tsval;
+		uint32_t tsecr;
+	} *opt_ts = (void *)buf;
+	struct tcp_option_window {
+		uint8_t kind;
+		uint8_t len;
+		uint8_t shift;
+	} *opt_window = (void *)buf;
+
+	switch (kind) {
+	case TCPOPT_NOP:
+		buf[0] = TCPOPT_NOP;
+		break;
+	case TCPOPT_WINDOW:
+		memset(opt_window, 0, sizeof(struct tcp_option_window));
+		opt_window->kind = TCPOPT_WINDOW;
+		opt_window->len = TCPOLEN_WINDOW;
+		opt_window->shift = 0;
+		break;
+	case TCPOPT_TIMESTAMP:
+		memset(opt_ts, 0, sizeof(struct tcp_option_ts));
+		opt_ts->kind = TCPOPT_TIMESTAMP;
+		opt_ts->len = TCPOLEN_TIMESTAMP;
+		opt_ts->tsval = ts;
+		opt_ts->tsecr = 0;
+		break;
+	default:
+		error(1, 0, "unimplemented TCP option");
+		break;
+	}
+}
+
+/* TCP with options is always a permutation of {TS, NOP, NOP}.
+ * Implement different orders to verify coalescing stops.
+ */
+static void add_standard_tcp_options(char *buf, char *no_ext, int ts, int order)
+{
+	switch (order) {
+	case 0:
+		tcp_write_options(buf + total_hdr_len, TCPOPT_NOP, 0);
+		tcp_write_options(buf + total_hdr_len + 1, TCPOPT_NOP, 0);
+		tcp_write_options(buf + total_hdr_len + 2 /* two NOP opts */,
+				  TCPOPT_TIMESTAMP, ts);
+		break;
+	case 1:
+		tcp_write_options(buf + total_hdr_len, TCPOPT_NOP, 0);
+		tcp_write_options(buf + total_hdr_len + 1,
+				  TCPOPT_TIMESTAMP, ts);
+		tcp_write_options(buf + total_hdr_len + 1 + TCPOLEN_TIMESTAMP,
+				  TCPOPT_NOP, 0);
+		break;
+	case 2:
+		tcp_write_options(buf + total_hdr_len, TCPOPT_TIMESTAMP, ts);
+		tcp_write_options(buf + total_hdr_len + TCPOLEN_TIMESTAMP + 1,
+				  TCPOPT_NOP, 0);
+		tcp_write_options(buf + total_hdr_len + TCPOLEN_TIMESTAMP + 2,
+				  TCPOPT_NOP, 0);
+		break;
+	default:
+		error(1, 0, "unknown order");
+		break;
+	}
+	recompute_packet(buf, no_ext, TCPOLEN_TSTAMP_APPA);
+}
+
+/* Packets with invalid checksum don't coalesce. */
+static void send_changed_checksum(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	struct tcphdr *tcph = (struct tcphdr *)(buf + tcp_offset);
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	tcph->check = tcph->check - 1;
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+ /* Packets with non-consecutive sequence number don't coalesce.*/
+static void send_changed_seq(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	struct tcphdr *tcph = (struct tcphdr *)(buf + tcp_offset);
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	tcph->seq = ntohl(htonl(tcph->seq) + 1);
+	tcph->check = 0;
+	tcph->check = tcp_checksum(tcph, PAYLOAD_LEN);
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+ /* Packet with different timestamp option or different timestamps
+  * don't coalesce.
+  */
+static void send_changed_ts(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char extpkt[sizeof(buf) + TCPOLEN_TSTAMP_APPA];
+	int pkt_size = total_hdr_len + PAYLOAD_LEN + TCPOLEN_TSTAMP_APPA;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt, buf, 0, 0);
+	write_packet(fd, extpkt, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt, buf, 0, 0);
+	write_packet(fd, extpkt, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 2, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt, buf, 100, 0);
+	write_packet(fd, extpkt, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 3, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt, buf, 100, 1);
+	write_packet(fd, extpkt, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 4, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt, buf, 100, 2);
+	write_packet(fd, extpkt, pkt_size, daddr);
+}
+
+/* Packet with different tcp options don't coalesce. */
+static void send_diff_opt(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char extpkt1[sizeof(buf) + TCPOLEN_TSTAMP_APPA];
+	static char extpkt2[sizeof(buf) + TCPOLEN_MAXSEG];
+	int extpkt1_size = total_hdr_len + PAYLOAD_LEN + TCPOLEN_TSTAMP_APPA;
+	int extpkt2_size = total_hdr_len + PAYLOAD_LEN + TCPOLEN_MAXSEG;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt1, buf, 0, 0);
+	write_packet(fd, extpkt1, extpkt1_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	add_standard_tcp_options(extpkt1, buf, 0, 0);
+	write_packet(fd, extpkt1, extpkt1_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 2, 0, PAYLOAD_LEN, 0);
+	tcp_write_options(extpkt2 + MAX_HDR_LEN, TCPOPT_NOP, 0);
+	tcp_write_options(extpkt2 + MAX_HDR_LEN + 1, TCPOPT_WINDOW, 0);
+	recompute_packet(extpkt2, buf, TCPOLEN_WINDOW + 1);
+	write_packet(fd, extpkt2, extpkt2_size, daddr);
+}
+
+static void add_ipv4_ts_option(void *buf, void *optpkt)
+{
+	struct ip_timestamp *ts = (struct ip_timestamp *)(optpkt + tcp_offset);
+	int optlen = sizeof(struct ip_timestamp);
+	struct iphdr *iph;
+
+	if (optlen % 4)
+		error(1, 0, "ipv4 timestamp length is not a multiple of 4B");
+
+	ts->ipt_code = IPOPT_TS;
+	ts->ipt_len = optlen;
+	ts->ipt_ptr = 5;
+	ts->ipt_flg = IPOPT_TS_TSONLY;
+
+	memcpy(optpkt, buf, tcp_offset);
+	memcpy(optpkt + tcp_offset + optlen, buf + tcp_offset,
+	       sizeof(struct tcphdr) + PAYLOAD_LEN);
+
+	iph = (struct iphdr *)(optpkt + ETH_HLEN);
+	iph->ihl = 5 + (optlen / 4);
+	iph->tot_len = htons(ntohs(iph->tot_len) + optlen);
+	iph->check = 0;
+	iph->check = checksum_fold(iph, sizeof(struct iphdr) + optlen, 0);
+}
+
+static void add_ipv6_exthdr(void *buf, void *optpkt, __u8 exthdr_type, char *ext_payload)
+{
+	struct ipv6_opt_hdr *exthdr = (struct ipv6_opt_hdr *)(optpkt + tcp_offset);
+	struct ipv6hdr *iph = (struct ipv6hdr *)(optpkt + ETH_HLEN);
+	char *exthdr_payload_start = (char *)(exthdr + 1);
+
+	exthdr->hdrlen = 0;
+	exthdr->nexthdr = IPPROTO_TCP;
+
+	memcpy(exthdr_payload_start, ext_payload, MIN_EXTHDR_SIZE - sizeof(*exthdr));
+
+	memcpy(optpkt, buf, tcp_offset);
+	memcpy(optpkt + tcp_offset + MIN_EXTHDR_SIZE, buf + tcp_offset,
+		sizeof(struct tcphdr) + PAYLOAD_LEN);
+
+	iph->nexthdr = exthdr_type;
+	iph->payload_len = htons(ntohs(iph->payload_len) + MIN_EXTHDR_SIZE);
+}
+
+static void fix_ip4_checksum(struct iphdr *iph)
+{
+	iph->check = 0;
+	iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+}
+
+static void send_flush_id_case(int fd, struct sockaddr_ll *daddr, int tcase)
+{
+	static char buf1[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char buf2[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char buf3[MAX_HDR_LEN + PAYLOAD_LEN];
+	bool send_three = false;
+	struct iphdr *iph1;
+	struct iphdr *iph2;
+	struct iphdr *iph3;
+
+	iph1 = (struct iphdr *)(buf1 + ETH_HLEN);
+	iph2 = (struct iphdr *)(buf2 + ETH_HLEN);
+	iph3 = (struct iphdr *)(buf3 + ETH_HLEN);
+
+	create_packet(buf1, 0, 0, PAYLOAD_LEN, 0);
+	create_packet(buf2, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	create_packet(buf3, PAYLOAD_LEN * 2, 0, PAYLOAD_LEN, 0);
+
+	switch (tcase) {
+	case 0: /* DF=1, Incrementing - should coalesce */
+		iph1->frag_off |= htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off |= htons(IP_DF);
+		iph2->id = htons(9);
+		break;
+
+	case 1: /* DF=1, Fixed - should coalesce */
+		iph1->frag_off |= htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off |= htons(IP_DF);
+		iph2->id = htons(8);
+		break;
+
+	case 2: /* DF=0, Incrementing - should coalesce */
+		iph1->frag_off &= ~htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off &= ~htons(IP_DF);
+		iph2->id = htons(9);
+		break;
+
+	case 3: /* DF=0, Fixed - should coalesce */
+		iph1->frag_off &= ~htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off &= ~htons(IP_DF);
+		iph2->id = htons(8);
+		break;
+
+	case 4: /* DF=1, two packets incrementing, and one fixed - should
+		 * coalesce only the first two packets
+		 */
+		iph1->frag_off |= htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off |= htons(IP_DF);
+		iph2->id = htons(9);
+
+		iph3->frag_off |= htons(IP_DF);
+		iph3->id = htons(9);
+		send_three = true;
+		break;
+
+	case 5: /* DF=1, two packets fixed, and one incrementing - should
+		 * coalesce only the first two packets
+		 */
+		iph1->frag_off |= htons(IP_DF);
+		iph1->id = htons(8);
+
+		iph2->frag_off |= htons(IP_DF);
+		iph2->id = htons(8);
+
+		iph3->frag_off |= htons(IP_DF);
+		iph3->id = htons(9);
+		send_three = true;
+		break;
+	}
+
+	fix_ip4_checksum(iph1);
+	fix_ip4_checksum(iph2);
+	write_packet(fd, buf1, total_hdr_len + PAYLOAD_LEN, daddr);
+	write_packet(fd, buf2, total_hdr_len + PAYLOAD_LEN, daddr);
+
+	if (send_three) {
+		fix_ip4_checksum(iph3);
+		write_packet(fd, buf3, total_hdr_len + PAYLOAD_LEN, daddr);
+	}
+}
+
+static void test_flush_id(int fd, struct sockaddr_ll *daddr, char *fin_pkt)
+{
+	for (int i = 0; i < num_flush_id_cases; i++) {
+		sleep(1);
+		send_flush_id_case(fd, daddr, i);
+		sleep(1);
+		write_packet(fd, fin_pkt, total_hdr_len, daddr);
+	}
+}
+
+static void send_ipv6_exthdr(int fd, struct sockaddr_ll *daddr, char *ext_data1, char *ext_data2)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char exthdr_pck[sizeof(buf) + MIN_EXTHDR_SIZE];
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	add_ipv6_exthdr(buf, exthdr_pck, IPPROTO_DSTOPTS, ext_data1);
+	write_packet(fd, exthdr_pck, total_hdr_len + PAYLOAD_LEN + MIN_EXTHDR_SIZE, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 1, 0, PAYLOAD_LEN, 0);
+	add_ipv6_exthdr(buf, exthdr_pck, IPPROTO_DSTOPTS, ext_data2);
+	write_packet(fd, exthdr_pck, total_hdr_len + PAYLOAD_LEN + MIN_EXTHDR_SIZE, daddr);
+}
+
+/* IPv4 options shouldn't coalesce */
+static void send_ip_options(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char optpkt[sizeof(buf) + sizeof(struct ip_timestamp)];
+	int optlen = sizeof(struct ip_timestamp);
+	int pkt_size = total_hdr_len + PAYLOAD_LEN + optlen;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 1, 0, PAYLOAD_LEN, 0);
+	add_ipv4_ts_option(buf, optpkt);
+	write_packet(fd, optpkt, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 2, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, total_hdr_len + PAYLOAD_LEN, daddr);
+}
+
+/*  IPv4 fragments shouldn't coalesce */
+static void send_fragment4(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[IP_MAXPACKET];
+	struct iphdr *iph = (struct iphdr *)(buf + ETH_HLEN);
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	/* Once fragmented, packet would retain the total_len.
+	 * Tcp header is prepared as if rest of data is in follow-up frags,
+	 * but follow up frags aren't actually sent.
+	 */
+	memset(buf + total_hdr_len, 'a', PAYLOAD_LEN * 2);
+	fill_transportlayer(buf + tcp_offset, PAYLOAD_LEN, 0, PAYLOAD_LEN * 2, 0);
+	fill_networklayer(buf + ETH_HLEN, PAYLOAD_LEN, IPPROTO_TCP);
+	fill_datalinklayer(buf);
+
+	iph->frag_off = htons(0x6000); // DF = 1, MF = 1
+	iph->check = 0;
+	iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+/* IPv4 packets with different ttl don't coalesce.*/
+static void send_changed_ttl(int fd, struct sockaddr_ll *daddr)
+{
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	struct iphdr *iph = (struct iphdr *)(buf + ETH_HLEN);
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	iph->ttl = 7;
+	iph->check = 0;
+	iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+/* Packets with different tos don't coalesce.*/
+static void send_changed_tos(int fd, struct sockaddr_ll *daddr)
+{
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	struct iphdr *iph = (struct iphdr *)(buf + ETH_HLEN);
+	struct ipv6hdr *ip6h = (struct ipv6hdr *)(buf + ETH_HLEN);
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	if (proto == PF_INET) {
+		iph->tos = 1;
+		iph->check = 0;
+		iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+	} else if (proto == PF_INET6) {
+		ip6h->priority = 0xf;
+	}
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+/* Packets with different ECN don't coalesce.*/
+static void send_changed_ECN(int fd, struct sockaddr_ll *daddr)
+{
+	int pkt_size = total_hdr_len + PAYLOAD_LEN;
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	struct iphdr *iph = (struct iphdr *)(buf + ETH_HLEN);
+
+	create_packet(buf, 0, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, pkt_size, daddr);
+
+	create_packet(buf, PAYLOAD_LEN, 0, PAYLOAD_LEN, 0);
+	if (proto == PF_INET) {
+		buf[ETH_HLEN + 1] ^= 0x2; // ECN set to 10
+		iph->check = 0;
+		iph->check = checksum_fold(iph, sizeof(struct iphdr), 0);
+	} else {
+		buf[ETH_HLEN + 1] ^= 0x20; // ECN set to 10
+	}
+	write_packet(fd, buf, pkt_size, daddr);
+}
+
+/* IPv6 fragments and packets with extensions don't coalesce.*/
+static void send_fragment6(int fd, struct sockaddr_ll *daddr)
+{
+	static char buf[MAX_HDR_LEN + PAYLOAD_LEN];
+	static char extpkt[MAX_HDR_LEN + PAYLOAD_LEN +
+			   sizeof(struct ip6_frag)];
+	struct ipv6hdr *ip6h = (struct ipv6hdr *)(buf + ETH_HLEN);
+	struct ip6_frag *frag = (void *)(extpkt + tcp_offset);
+	int extlen = sizeof(struct ip6_frag);
+	int bufpkt_len = total_hdr_len + PAYLOAD_LEN;
+	int extpkt_len = bufpkt_len + extlen;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		create_packet(buf, PAYLOAD_LEN * i, 0, PAYLOAD_LEN, 0);
+		write_packet(fd, buf, bufpkt_len, daddr);
+	}
+	sleep(1);
+	create_packet(buf, PAYLOAD_LEN * 2, 0, PAYLOAD_LEN, 0);
+	memset(extpkt, 0, extpkt_len);
+
+	ip6h->nexthdr = IPPROTO_FRAGMENT;
+	ip6h->payload_len = htons(ntohs(ip6h->payload_len) + extlen);
+	frag->ip6f_nxt = IPPROTO_TCP;
+
+	memcpy(extpkt, buf, tcp_offset);
+	memcpy(extpkt + tcp_offset + extlen, buf + tcp_offset,
+	       sizeof(struct tcphdr) + PAYLOAD_LEN);
+	write_packet(fd, extpkt, extpkt_len, daddr);
+
+	create_packet(buf, PAYLOAD_LEN * 3, 0, PAYLOAD_LEN, 0);
+	write_packet(fd, buf, bufpkt_len, daddr);
+}
+
+static void bind_packetsocket(int fd)
+{
+	struct sockaddr_ll daddr = {};
+
+	daddr.sll_family = AF_PACKET;
+	daddr.sll_protocol = ethhdr_proto;
+	daddr.sll_ifindex = if_nametoindex(ifname);
+	if (daddr.sll_ifindex == 0)
+		error(1, errno, "if_nametoindex");
+
+	if (bind(fd, (void *)&daddr, sizeof(daddr)) < 0)
+		error(1, errno, "could not bind socket");
+}
+
+static void set_timeout(int fd)
+{
+	struct timeval timeout;
+
+	timeout.tv_sec = 3;
+	timeout.tv_usec = 0;
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (char *)&timeout,
+		       sizeof(timeout)) < 0)
+		error(1, errno, "cannot set timeout, setsockopt failed");
+}
+
+static void check_recv_pkts(int fd, int *correct_payload,
+			    int correct_num_pkts)
+{
+	static char buffer[IP_MAXPACKET + ETH_HLEN + 1];
+	struct iphdr *iph = (struct iphdr *)(buffer + ETH_HLEN);
+	struct ipv6hdr *ip6h = (struct ipv6hdr *)(buffer + ETH_HLEN);
+	struct tcphdr *tcph;
+	bool bad_packet = false;
+	int tcp_ext_len = 0;
+	int ip_ext_len = 0;
+	int pkt_size = -1;
+	int data_len = 0;
+	int num_pkt = 0;
+	int i;
+
+	vlog("Expected {");
+	for (i = 0; i < correct_num_pkts; i++)
+		vlog("%d ", correct_payload[i]);
+	vlog("}, Total %d packets\nReceived {", correct_num_pkts);
+
+	while (1) {
+		ip_ext_len = 0;
+		pkt_size = recv(fd, buffer, IP_MAXPACKET + ETH_HLEN + 1, 0);
+		if (pkt_size < 0)
+			error(1, errno, "could not receive");
+
+		if (iph->version == 4)
+			ip_ext_len = (iph->ihl - 5) * 4;
+		else if (ip6h->version == 6 && ip6h->nexthdr != IPPROTO_TCP)
+			ip_ext_len = MIN_EXTHDR_SIZE;
+
+		tcph = (struct tcphdr *)(buffer + tcp_offset + ip_ext_len);
+
+		if (tcph->fin)
+			break;
+
+		tcp_ext_len = (tcph->doff - 5) * 4;
+		data_len = pkt_size - total_hdr_len - tcp_ext_len - ip_ext_len;
+		/* Min ethernet frame payload is 46(ETH_ZLEN - ETH_HLEN) by RFC 802.3.
+		 * Ipv4/tcp packets without at least 6 bytes of data will be padded.
+		 * Packet sockets are protocol agnostic, and will not trim the padding.
+		 */
+		if (pkt_size == ETH_ZLEN && iph->version == 4) {
+			data_len = ntohs(iph->tot_len)
+				- sizeof(struct tcphdr) - sizeof(struct iphdr);
+		}
+		vlog("%d ", data_len);
+		if (data_len != correct_payload[num_pkt]) {
+			vlog("[!=%d]", correct_payload[num_pkt]);
+			bad_packet = true;
+		}
+		num_pkt++;
+	}
+	vlog("}, Total %d packets.\n", num_pkt);
+	if (num_pkt != correct_num_pkts)
+		error(1, 0, "incorrect number of packets");
+	if (bad_packet)
+		error(1, 0, "incorrect packet geometry");
+
+	printf("Test succeeded\n\n");
+}
+
+static void gro_sender(void)
+{
+	const int fin_delay_us = 100 * 1000;
+	static char fin_pkt[MAX_HDR_LEN];
+	struct sockaddr_ll daddr = {};
+	int txfd = -1;
+
+	txfd = socket(PF_PACKET, SOCK_RAW, IPPROTO_RAW);
+	if (txfd < 0)
+		error(1, errno, "socket creation");
+
+	memset(&daddr, 0, sizeof(daddr));
+	daddr.sll_ifindex = if_nametoindex(ifname);
+	if (daddr.sll_ifindex == 0)
+		error(1, errno, "if_nametoindex");
+	daddr.sll_family = AF_PACKET;
+	memcpy(daddr.sll_addr, dst_mac, ETH_ALEN);
+	daddr.sll_halen = ETH_ALEN;
+	create_packet(fin_pkt, PAYLOAD_LEN * 2, 0, 0, 1);
+
+	if (strcmp(testname, "data") == 0) {
+		send_data_pkts(txfd, &daddr, PAYLOAD_LEN, PAYLOAD_LEN);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_data_pkts(txfd, &daddr, PAYLOAD_LEN, PAYLOAD_LEN / 2);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_data_pkts(txfd, &daddr, PAYLOAD_LEN / 2, PAYLOAD_LEN);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+	} else if (strcmp(testname, "ack") == 0) {
+		send_ack(txfd, &daddr);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+	} else if (strcmp(testname, "flags") == 0) {
+		send_flags(txfd, &daddr, 1, 0, 0, 0);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_flags(txfd, &daddr, 0, 1, 0, 0);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_flags(txfd, &daddr, 0, 0, 1, 0);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_flags(txfd, &daddr, 0, 0, 0, 1);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+	} else if (strcmp(testname, "tcp") == 0) {
+		send_changed_checksum(txfd, &daddr);
+		/* Adding sleep before sending FIN so that it is not
+		 * received prior to other packets.
+		 */
+		usleep(fin_delay_us);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_changed_seq(txfd, &daddr);
+		usleep(fin_delay_us);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_changed_ts(txfd, &daddr);
+		usleep(fin_delay_us);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_diff_opt(txfd, &daddr);
+		usleep(fin_delay_us);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+	} else if (strcmp(testname, "ip") == 0) {
+		send_changed_ECN(txfd, &daddr);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_changed_tos(txfd, &daddr);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+		if (proto == PF_INET) {
+			/* Modified packets may be received out of order.
+			 * Sleep function added to enforce test boundaries
+			 * so that fin pkts are not received prior to other pkts.
+			 */
+			sleep(1);
+			send_changed_ttl(txfd, &daddr);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+			sleep(1);
+			send_ip_options(txfd, &daddr);
+			sleep(1);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+			sleep(1);
+			send_fragment4(txfd, &daddr);
+			sleep(1);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+			test_flush_id(txfd, &daddr, fin_pkt);
+		} else if (proto == PF_INET6) {
+			sleep(1);
+			send_fragment6(txfd, &daddr);
+			sleep(1);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+			sleep(1);
+			/* send IPv6 packets with ext header with same payload */
+			send_ipv6_exthdr(txfd, &daddr, EXT_PAYLOAD_1, EXT_PAYLOAD_1);
+			sleep(1);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+			sleep(1);
+			/* send IPv6 packets with ext header with different payload */
+			send_ipv6_exthdr(txfd, &daddr, EXT_PAYLOAD_1, EXT_PAYLOAD_2);
+			sleep(1);
+			write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+		}
+	} else if (strcmp(testname, "large") == 0) {
+		/* 20 is the difference between min iphdr size
+		 * and min ipv6hdr size. Like MAX_HDR_SIZE,
+		 * MAX_PAYLOAD is defined with the larger header of the two.
+		 */
+		int offset = (proto == PF_INET && !ipip) ? 20 : 0;
+		int remainder = (MAX_PAYLOAD + offset) % MSS;
+
+		send_large(txfd, &daddr, remainder);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+
+		send_large(txfd, &daddr, remainder + 1);
+		write_packet(txfd, fin_pkt, total_hdr_len, &daddr);
+	} else {
+		error(1, 0, "Unknown testcase");
+	}
+
+	if (close(txfd))
+		error(1, errno, "socket close");
+}
+
+static void gro_receiver(void)
+{
+	static int correct_payload[NUM_PACKETS];
+	int rxfd = -1;
+
+	rxfd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_NONE));
+	if (rxfd < 0)
+		error(1, 0, "socket creation");
+	setup_sock_filter(rxfd);
+	set_timeout(rxfd);
+	bind_packetsocket(rxfd);
+
+	ksft_ready();
+
+	memset(correct_payload, 0, sizeof(correct_payload));
+
+	if (strcmp(testname, "data") == 0) {
+		printf("pure data packet of same size: ");
+		correct_payload[0] = PAYLOAD_LEN * 2;
+		check_recv_pkts(rxfd, correct_payload, 1);
+
+		printf("large data packets followed by a smaller one: ");
+		correct_payload[0] = PAYLOAD_LEN * 1.5;
+		check_recv_pkts(rxfd, correct_payload, 1);
+
+		printf("small data packets followed by a larger one: ");
+		correct_payload[0] = PAYLOAD_LEN / 2;
+		correct_payload[1] = PAYLOAD_LEN;
+		check_recv_pkts(rxfd, correct_payload, 2);
+	} else if (strcmp(testname, "ack") == 0) {
+		printf("duplicate ack and pure ack: ");
+		check_recv_pkts(rxfd, correct_payload, 3);
+	} else if (strcmp(testname, "flags") == 0) {
+		correct_payload[0] = PAYLOAD_LEN * 3;
+		correct_payload[1] = PAYLOAD_LEN * 2;
+
+		printf("psh flag ends coalescing: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		correct_payload[0] = PAYLOAD_LEN * 2;
+		correct_payload[1] = 0;
+		correct_payload[2] = PAYLOAD_LEN * 2;
+		printf("syn flag ends coalescing: ");
+		check_recv_pkts(rxfd, correct_payload, 3);
+
+		printf("rst flag ends coalescing: ");
+		check_recv_pkts(rxfd, correct_payload, 3);
+
+		printf("urg flag ends coalescing: ");
+		check_recv_pkts(rxfd, correct_payload, 3);
+	} else if (strcmp(testname, "tcp") == 0) {
+		correct_payload[0] = PAYLOAD_LEN;
+		correct_payload[1] = PAYLOAD_LEN;
+		correct_payload[2] = PAYLOAD_LEN;
+		correct_payload[3] = PAYLOAD_LEN;
+
+		printf("changed checksum does not coalesce: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		printf("Wrong Seq number doesn't coalesce: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		printf("Different timestamp doesn't coalesce: ");
+		correct_payload[0] = PAYLOAD_LEN * 2;
+		check_recv_pkts(rxfd, correct_payload, 4);
+
+		printf("Different options doesn't coalesce: ");
+		correct_payload[0] = PAYLOAD_LEN * 2;
+		check_recv_pkts(rxfd, correct_payload, 2);
+	} else if (strcmp(testname, "ip") == 0) {
+		correct_payload[0] = PAYLOAD_LEN;
+		correct_payload[1] = PAYLOAD_LEN;
+
+		printf("different ECN doesn't coalesce: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		printf("different tos doesn't coalesce: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		if (proto == PF_INET) {
+			printf("different ttl doesn't coalesce: ");
+			check_recv_pkts(rxfd, correct_payload, 2);
+
+			printf("ip options doesn't coalesce: ");
+			correct_payload[2] = PAYLOAD_LEN;
+			check_recv_pkts(rxfd, correct_payload, 3);
+
+			printf("fragmented ip4 doesn't coalesce: ");
+			check_recv_pkts(rxfd, correct_payload, 2);
+
+			/* is_atomic checks */
+			printf("DF=1, Incrementing - should coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			check_recv_pkts(rxfd, correct_payload, 1);
+
+			printf("DF=1, Fixed - should coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			check_recv_pkts(rxfd, correct_payload, 1);
+
+			printf("DF=0, Incrementing - should coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			check_recv_pkts(rxfd, correct_payload, 1);
+
+			printf("DF=0, Fixed - should coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			check_recv_pkts(rxfd, correct_payload, 1);
+
+			printf("DF=1, 2 Incrementing and one fixed - should coalesce only first 2 packets: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			correct_payload[1] = PAYLOAD_LEN;
+			check_recv_pkts(rxfd, correct_payload, 2);
+
+			printf("DF=1, 2 Fixed and one incrementing - should coalesce only first 2 packets: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			correct_payload[1] = PAYLOAD_LEN;
+			check_recv_pkts(rxfd, correct_payload, 2);
+		} else if (proto == PF_INET6) {
+			/* GRO doesn't check for ipv6 hop limit when flushing.
+			 * Hence no corresponding test to the ipv4 case.
+			 */
+			printf("fragmented ip6 doesn't coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			correct_payload[1] = PAYLOAD_LEN;
+			correct_payload[2] = PAYLOAD_LEN;
+			check_recv_pkts(rxfd, correct_payload, 3);
+
+			printf("ipv6 with ext header does coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN * 2;
+			check_recv_pkts(rxfd, correct_payload, 1);
+
+			printf("ipv6 with ext header with different payloads doesn't coalesce: ");
+			correct_payload[0] = PAYLOAD_LEN;
+			correct_payload[1] = PAYLOAD_LEN;
+			check_recv_pkts(rxfd, correct_payload, 2);
+		}
+	} else if (strcmp(testname, "large") == 0) {
+		int offset = (proto == PF_INET && !ipip) ? 20 : 0;
+		int remainder = (MAX_PAYLOAD + offset) % MSS;
+
+		correct_payload[0] = (MAX_PAYLOAD + offset);
+		correct_payload[1] = remainder;
+		printf("Shouldn't coalesce if exceed IP max pkt size: ");
+		check_recv_pkts(rxfd, correct_payload, 2);
+
+		/* last segment sent individually, doesn't start new segment */
+		correct_payload[0] = correct_payload[0] - remainder;
+		correct_payload[1] = remainder + 1;
+		correct_payload[2] = remainder + 1;
+		check_recv_pkts(rxfd, correct_payload, 3);
+	} else {
+		error(1, 0, "Test case error, should never trigger");
+	}
+
+	if (close(rxfd))
+		error(1, 0, "socket close");
+}
+
+static void parse_args(int argc, char **argv)
+{
+	static const struct option opts[] = {
+		{ "daddr", required_argument, NULL, 'd' },
+		{ "dmac", required_argument, NULL, 'D' },
+		{ "iface", required_argument, NULL, 'i' },
+		{ "ipv4", no_argument, NULL, '4' },
+		{ "ipv6", no_argument, NULL, '6' },
+		{ "ipip", no_argument, NULL, 'e' },
+		{ "rx", no_argument, NULL, 'r' },
+		{ "saddr", required_argument, NULL, 's' },
+		{ "smac", required_argument, NULL, 'S' },
+		{ "test", required_argument, NULL, 't' },
+		{ "verbose", no_argument, NULL, 'v' },
+		{ 0, 0, 0, 0 }
+	};
+	int c;
+
+	while ((c = getopt_long(argc, argv, "46d:D:ei:rs:S:t:v", opts, NULL)) != -1) {
+		switch (c) {
+		case '4':
+			proto = PF_INET;
+			ethhdr_proto = htons(ETH_P_IP);
+			break;
+		case '6':
+			proto = PF_INET6;
+			ethhdr_proto = htons(ETH_P_IPV6);
+			break;
+		case 'e':
+			ipip = true;
+			proto = PF_INET;
+			ethhdr_proto = htons(ETH_P_IP);
+			break;
+		case 'd':
+			addr4_dst = addr6_dst = optarg;
+			break;
+		case 'D':
+			dmac = optarg;
+			break;
+		case 'i':
+			ifname = optarg;
+			break;
+		case 'r':
+			tx_socket = false;
+			break;
+		case 's':
+			addr4_src = addr6_src = optarg;
+			break;
+		case 'S':
+			smac = optarg;
+			break;
+		case 't':
+			testname = optarg;
+			break;
+		case 'v':
+			verbose = true;
+			break;
+		default:
+			error(1, 0, "%s invalid option %c\n", __func__, c);
+			break;
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	parse_args(argc, argv);
+
+	if (ipip) {
+		tcp_offset = ETH_HLEN + sizeof(struct iphdr) * 2;
+		total_hdr_len = tcp_offset + sizeof(struct tcphdr);
+	} else if (proto == PF_INET) {
+		tcp_offset = ETH_HLEN + sizeof(struct iphdr);
+		total_hdr_len = tcp_offset + sizeof(struct tcphdr);
+	} else if (proto == PF_INET6) {
+		tcp_offset = ETH_HLEN + sizeof(struct ipv6hdr);
+		total_hdr_len = MAX_HDR_LEN;
+	} else {
+		error(1, 0, "Protocol family is not ipv4 or ipv6");
+	}
+
+	read_MAC(src_mac, smac);
+	read_MAC(dst_mac, dmac);
+
+	if (tx_socket) {
+		gro_sender();
+	} else {
+		/* Only the receiver exit status determines test success. */
+		gro_receiver();
+		fprintf(stderr, "Gro::%s test passed.\n", testname);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/drivers/net/gro.py b/tools/testing/selftests/drivers/net/gro.py
new file mode 100755
index 000000000000..ba83713bf7b5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/gro.py
@@ -0,0 +1,164 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+GRO (Generic Receive Offload) conformance tests.
+
+Validates that GRO coalescing works correctly by running the gro
+binary in different configurations and checking for correct packet
+coalescing behavior.
+
+Test cases:
+  - data: Data packets with same size/headers and correct seq numbers coalesce
+  - ack: Pure ACK packets do not coalesce
+  - flags: Packets with PSH, SYN, URG, RST flags do not coalesce
+  - tcp: Packets with incorrect checksum, non-consecutive seqno don't coalesce
+  - ip: Packets with different ECN, TTL, TOS, or IP options don't coalesce
+  - large: Packets larger than GRO_MAX_SIZE don't coalesce
+"""
+
+import os
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import NetDrvEpEnv, KsftXfailEx
+from lib.py import cmd, defer, bkg, ip
+from lib.py import ksft_variants
+
+
+def _resolve_dmac(cfg, ipver):
+    """
+    Find the destination MAC address remote host should use to send packets
+    towards the local host. It may be a router / gateway address.
+    """
+
+    attr = "dmac" + ipver
+    # Cache the response across test cases
+    if hasattr(cfg, attr):
+        return getattr(cfg, attr)
+
+    route = ip(f"-{ipver} route get {cfg.addr_v[ipver]}",
+               json=True, host=cfg.remote)[0]
+    gw = route.get("gateway")
+    # Local L2 segment, address directly
+    if not gw:
+        setattr(cfg, attr, cfg.dev['address'])
+        return getattr(cfg, attr)
+
+    # ping to make sure neighbor is resolved,
+    # bind to an interface, for v6 the GW is likely link local
+    cmd(f"ping -c1 -W0 -I{cfg.remote_ifname} {gw}", host=cfg.remote)
+
+    neigh = ip(f"neigh get {gw} dev {cfg.remote_ifname}",
+               json=True, host=cfg.remote)[0]
+    setattr(cfg, attr, neigh['lladdr'])
+    return getattr(cfg, attr)
+
+
+def _write_defer_restore(cfg, path, val, defer_undo=False):
+    with open(path, "r", encoding="utf-8") as fp:
+        orig_val = fp.read().strip()
+        if str(val) == orig_val:
+            return
+    with open(path, "w", encoding="utf-8") as fp:
+        fp.write(val)
+    if defer_undo:
+        defer(_write_defer_restore, cfg, path, orig_val)
+
+
+def _set_mtu_restore(dev, mtu, host):
+    if dev['mtu'] < mtu:
+        ip(f"link set dev {dev['ifname']} mtu {mtu}", host=host)
+        defer(ip, f"link set dev {dev['ifname']} mtu {dev['mtu']}", host=host)
+
+
+def _setup(cfg, test_name):
+    """ Setup hardware loopback mode for GRO testing. """
+
+    if not hasattr(cfg, "bin_remote"):
+        cfg.bin_local = cfg.test_dir / "gro"
+        cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
+
+    # "large" test needs at least 4k MTU
+    if test_name == "large":
+        _set_mtu_restore(cfg.dev, 4096, None)
+        _set_mtu_restore(cfg.remote_dev, 4096, cfg.remote)
+
+    flush_path = f"/sys/class/net/{cfg.ifname}/gro_flush_timeout"
+    irq_path = f"/sys/class/net/{cfg.ifname}/napi_defer_hard_irqs"
+
+    _write_defer_restore(cfg, flush_path, "200000", defer_undo=True)
+    _write_defer_restore(cfg, irq_path, "10", defer_undo=True)
+
+    try:
+        # Disable TSO for local tests
+        cfg.require_nsim()  # will raise KsftXfailEx if not running on nsim
+
+        cmd(f"ethtool -K {cfg.ifname} gro on tso off")
+        cmd(f"ethtool -K {cfg.remote_ifname} gro on tso off", host=cfg.remote)
+    except KsftXfailEx:
+        pass
+
+def _gro_variants():
+    """Generator that yields all combinations of protocol and test types."""
+
+    for protocol in ["ipv4", "ipv6", "ipip"]:
+        for test_name in ["data", "ack", "flags", "tcp", "ip", "large"]:
+            yield protocol, test_name
+
+
+@ksft_variants(_gro_variants())
+def test(cfg, protocol, test_name):
+    """Run a single GRO test with retries."""
+
+    ipver = "6" if protocol[-1] == "6" else "4"
+    cfg.require_ipver(ipver)
+
+    _setup(cfg, test_name)
+
+    base_cmd_args = [
+        f"--{protocol}",
+        f"--dmac {_resolve_dmac(cfg, ipver)}",
+        f"--smac {cfg.remote_dev['address']}",
+        f"--daddr {cfg.addr_v[ipver]}",
+        f"--saddr {cfg.remote_addr_v[ipver]}",
+        f"--test {test_name}",
+        "--verbose"
+    ]
+    base_args = " ".join(base_cmd_args)
+
+    # Each test is run 6 times to deflake, because given the receive timing,
+    # not all packets that should coalesce will be considered in the same flow
+    # on every try.
+    max_retries = 6
+    for attempt in range(max_retries):
+        rx_cmd = f"{cfg.bin_local} {base_args} --rx --iface {cfg.ifname}"
+        tx_cmd = f"{cfg.bin_remote} {base_args} --iface {cfg.remote_ifname}"
+
+        fail_now = attempt >= max_retries - 1
+
+        with bkg(rx_cmd, ksft_ready=True, exit_wait=True,
+                 fail=fail_now) as rx_proc:
+            cmd(tx_cmd, host=cfg.remote)
+
+        if rx_proc.ret == 0:
+            return
+
+        ksft_pr(rx_proc.stdout.strip().replace('\n', '\n# '))
+        ksft_pr(rx_proc.stderr.strip().replace('\n', '\n# '))
+
+        if test_name == "large" and os.environ.get("KSFT_MACHINE_SLOW"):
+            ksft_pr(f"Ignoring {protocol}/{test_name} failure due to slow environment")
+            return
+
+        ksft_pr(f"Attempt {attempt + 1}/{max_retries} failed, retrying...")
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEpEnv(__file__) as cfg:
+        ksft_run(cases=[test], args=(cfg,))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hds.py b/tools/testing/selftests/drivers/net/hds.py
new file mode 100755
index 000000000000..c4fe049e9baa
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hds.py
@@ -0,0 +1,329 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import errno
+import os
+import random
+from typing import Union
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_raises, KsftSkipEx
+from lib.py import CmdExitFailure, EthtoolFamily, NlError
+from lib.py import NetDrvEnv
+from lib.py import defer, ethtool, ip
+
+
+def _get_hds_mode(cfg, netnl) -> str:
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'tcp-data-split' not in rings:
+        raise KsftSkipEx('tcp-data-split not supported by device')
+    return rings['tcp-data-split']
+
+
+def _xdp_onoff(cfg):
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    ip("link set dev %s xdp obj %s sec xdp" %
+       (cfg.ifname, prog))
+    ip("link set dev %s xdp off" % cfg.ifname)
+
+
+def _ioctl_ringparam_modify(cfg, netnl) -> None:
+    """
+    Helper for performing a hopefully unimportant IOCTL SET.
+    IOCTL does not support HDS, so it should not affect the HDS config.
+    """
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+
+    if 'tx' not in rings:
+        raise KsftSkipEx('setting Tx ring size not supported')
+
+    try:
+        ethtool(f"--disable-netlink -G {cfg.ifname} tx {rings['tx'] // 2}")
+    except CmdExitFailure as e:
+        ethtool(f"--disable-netlink -G {cfg.ifname} tx {rings['tx'] * 2}")
+    defer(ethtool, f"-G {cfg.ifname} tx {rings['tx']}")
+
+
+def get_hds(cfg, netnl) -> None:
+    _get_hds_mode(cfg, netnl)
+
+
+def get_hds_thresh(cfg, netnl) -> None:
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'hds-thresh' not in rings:
+        raise KsftSkipEx('hds-thresh not supported by device')
+
+
+def _hds_reset(cfg, netnl, rings) -> None:
+    cur = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+
+    arg = {'header': {'dev-index': cfg.ifindex}}
+    if cur.get('tcp-data-split') != rings.get('tcp-data-split'):
+        # Try to reset to "unknown" first, we don't know if the setting
+        # was the default or user chose it. Default seems more likely.
+        arg['tcp-data-split'] = "unknown"
+        netnl.rings_set(arg)
+        cur = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+        if cur['tcp-data-split'] == rings['tcp-data-split']:
+            del arg['tcp-data-split']
+        else:
+            # Try the explicit setting
+            arg['tcp-data-split'] = rings['tcp-data-split']
+    if cur.get('hds-thresh') != rings.get('hds-thresh'):
+        arg['hds-thresh'] = rings['hds-thresh']
+    if len(arg) > 1:
+        netnl.rings_set(arg)
+
+
+def _defer_reset_hds(cfg, netnl) -> Union[dict, None]:
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+        if 'hds-thresh' in rings or 'tcp-data-split' in rings:
+            defer(_hds_reset, cfg, netnl, rings)
+    except NlError as e:
+        pass
+
+
+def set_hds_enable(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'tcp-data-split': 'enabled'})
+    except NlError as e:
+        if e.error == errno.EINVAL:
+            raise KsftSkipEx("disabling of HDS not supported by the device")
+        elif e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("ring-set not supported by the device")
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'tcp-data-split' not in rings:
+        raise KsftSkipEx('tcp-data-split not supported by device')
+
+    ksft_eq('enabled', rings['tcp-data-split'])
+
+def set_hds_disable(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'tcp-data-split': 'disabled'})
+    except NlError as e:
+        if e.error == errno.EINVAL:
+            raise KsftSkipEx("disabling of HDS not supported by the device")
+        elif e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("ring-set not supported by the device")
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'tcp-data-split' not in rings:
+        raise KsftSkipEx('tcp-data-split not supported by device')
+
+    ksft_eq('disabled', rings['tcp-data-split'])
+
+def set_hds_thresh_zero(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'hds-thresh': 0})
+    except NlError as e:
+        if e.error == errno.EINVAL:
+            raise KsftSkipEx("hds-thresh-set not supported by the device")
+        elif e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("ring-set not supported by the device")
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'hds-thresh' not in rings:
+        raise KsftSkipEx('hds-thresh not supported by device')
+
+    ksft_eq(0, rings['hds-thresh'])
+
+def set_hds_thresh_random(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'hds-thresh' not in rings:
+        raise KsftSkipEx('hds-thresh not supported by device')
+    if 'hds-thresh-max' not in rings:
+        raise KsftSkipEx('hds-thresh-max not defined by device')
+
+    if rings['hds-thresh-max'] < 2:
+        raise KsftSkipEx('hds-thresh-max is too small')
+    elif rings['hds-thresh-max'] == 2:
+        hds_thresh = 1
+    else:
+        while True:
+            hds_thresh = random.randint(1, rings['hds-thresh-max'] - 1)
+            if hds_thresh != rings['hds-thresh']:
+                break
+
+    try:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'hds-thresh': hds_thresh})
+    except NlError as e:
+        if e.error == errno.EINVAL:
+            raise KsftSkipEx("hds-thresh-set not supported by the device")
+        elif e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("ring-set not supported by the device")
+    rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    ksft_eq(hds_thresh, rings['hds-thresh'])
+
+def set_hds_thresh_max(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'hds-thresh' not in rings:
+        raise KsftSkipEx('hds-thresh not supported by device')
+    try:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'hds-thresh': rings['hds-thresh-max']})
+    except NlError as e:
+        if e.error == errno.EINVAL:
+            raise KsftSkipEx("hds-thresh-set not supported by the device")
+        elif e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("ring-set not supported by the device")
+    rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    ksft_eq(rings['hds-thresh'], rings['hds-thresh-max'])
+
+def set_hds_thresh_gt(cfg, netnl) -> None:
+    _defer_reset_hds(cfg, netnl)
+    try:
+        rings = netnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+    except NlError as e:
+        raise KsftSkipEx('ring-get not supported by device')
+    if 'hds-thresh' not in rings:
+        raise KsftSkipEx('hds-thresh not supported by device')
+    if 'hds-thresh-max' not in rings:
+        raise KsftSkipEx('hds-thresh-max not defined by device')
+    hds_gt = rings['hds-thresh-max'] + 1
+    with ksft_raises(NlError) as e:
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex}, 'hds-thresh': hds_gt})
+    ksft_eq(e.exception.nl_msg.error, -errno.EINVAL)
+
+
+def set_xdp(cfg, netnl) -> None:
+    """
+    Enable single-buffer XDP on the device.
+    When HDS is in "auto" / UNKNOWN mode, XDP installation should work.
+    """
+    mode = _get_hds_mode(cfg, netnl)
+    if mode == 'enabled':
+        _defer_reset_hds(cfg, netnl)
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                         'tcp-data-split': 'unknown'})
+
+    _xdp_onoff(cfg)
+
+
+def enabled_set_xdp(cfg, netnl) -> None:
+    """
+    Enable single-buffer XDP on the device.
+    When HDS is in "enabled" mode, XDP installation should not work.
+    """
+    _get_hds_mode(cfg, netnl)
+    netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                     'tcp-data-split': 'enabled'})
+
+    defer(netnl.rings_set, {'header': {'dev-index': cfg.ifindex},
+                            'tcp-data-split': 'unknown'})
+
+    with ksft_raises(CmdExitFailure) as e:
+        _xdp_onoff(cfg)
+
+
+def set_xdp(cfg, netnl) -> None:
+    """
+    Enable single-buffer XDP on the device.
+    When HDS is in "auto" / UNKNOWN mode, XDP installation should work.
+    """
+    mode = _get_hds_mode(cfg, netnl)
+    if mode == 'enabled':
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                         'tcp-data-split': 'unknown'})
+
+    _xdp_onoff(cfg)
+
+
+def enabled_set_xdp(cfg, netnl) -> None:
+    """
+    Enable single-buffer XDP on the device.
+    When HDS is in "enabled" mode, XDP installation should not work.
+    """
+    _get_hds_mode(cfg, netnl)  # Trigger skip if not supported
+
+    netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                     'tcp-data-split': 'enabled'})
+    defer(netnl.rings_set, {'header': {'dev-index': cfg.ifindex},
+                            'tcp-data-split': 'unknown'})
+
+    with ksft_raises(CmdExitFailure) as e:
+        _xdp_onoff(cfg)
+
+
+def ioctl(cfg, netnl) -> None:
+    mode1 = _get_hds_mode(cfg, netnl)
+    _ioctl_ringparam_modify(cfg, netnl)
+    mode2 = _get_hds_mode(cfg, netnl)
+
+    ksft_eq(mode1, mode2)
+
+
+def ioctl_set_xdp(cfg, netnl) -> None:
+    """
+    Like set_xdp(), but we perturb the settings via the legacy ioctl.
+    """
+    mode = _get_hds_mode(cfg, netnl)
+    if mode == 'enabled':
+        netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                         'tcp-data-split': 'unknown'})
+
+    _ioctl_ringparam_modify(cfg, netnl)
+
+    _xdp_onoff(cfg)
+
+
+def ioctl_enabled_set_xdp(cfg, netnl) -> None:
+    """
+    Enable single-buffer XDP on the device.
+    When HDS is in "enabled" mode, XDP installation should not work.
+    """
+    _get_hds_mode(cfg, netnl)  # Trigger skip if not supported
+
+    netnl.rings_set({'header': {'dev-index': cfg.ifindex},
+                     'tcp-data-split': 'enabled'})
+    defer(netnl.rings_set, {'header': {'dev-index': cfg.ifindex},
+                            'tcp-data-split': 'unknown'})
+
+    with ksft_raises(CmdExitFailure) as e:
+        _xdp_onoff(cfg)
+
+
+def main() -> None:
+    with NetDrvEnv(__file__, queue_count=3) as cfg:
+        ksft_run([get_hds,
+                  get_hds_thresh,
+                  set_hds_disable,
+                  set_hds_enable,
+                  set_hds_thresh_random,
+                  set_hds_thresh_zero,
+                  set_hds_thresh_max,
+                  set_hds_thresh_gt,
+                  set_xdp,
+                  enabled_set_xdp,
+                  ioctl,
+                  ioctl_set_xdp,
+                  ioctl_enabled_set_xdp],
+                 args=(cfg, EthtoolFamily()))
+    ksft_exit()
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/.gitignore b/tools/testing/selftests/drivers/net/hw/.gitignore
new file mode 100644
index 000000000000..46540468a775
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+iou-zcrx
+ncdevmem
+toeplitz
diff --git a/tools/testing/selftests/drivers/net/hw/Makefile b/tools/testing/selftests/drivers/net/hw/Makefile
new file mode 100644
index 000000000000..9c163ba6feee
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/Makefile
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+# Check if io_uring supports zero-copy receive
+HAS_IOURING_ZCRX := $(shell \
+	echo -e '#include <liburing.h>\n' \
+	     'void *func = (void *)io_uring_register_ifq;\n' \
+	     'int main() {return 0;}' | \
+	$(CC) -luring -x c - -o /dev/null 2>&1 && echo y)
+
+ifeq ($(HAS_IOURING_ZCRX),y)
+COND_GEN_FILES += iou-zcrx
+else
+$(warning excluding iouring tests, liburing not installed or too old)
+endif
+
+TEST_GEN_FILES := \
+	$(COND_GEN_FILES) \
+# end of TEST_GEN_FILES
+
+TEST_PROGS = \
+	csum.py \
+	devlink_port_split.py \
+	devlink_rate_tc_bw.py \
+	devmem.py \
+	ethtool.sh \
+	ethtool_extended_state.sh \
+	ethtool_mm.sh \
+	ethtool_rmon.sh \
+	hw_stats_l3.sh \
+	hw_stats_l3_gre.sh \
+	iou-zcrx.py \
+	irq.py \
+	loopback.sh \
+	nic_timestamp.py \
+	pp_alloc_fail.py \
+	rss_api.py \
+	rss_ctx.py \
+	rss_flow_label.py \
+	rss_input_xfrm.py \
+	toeplitz.py \
+	tso.py \
+	xsk_reconfig.py \
+	#
+
+TEST_FILES := \
+	ethtool_lib.sh \
+	#
+
+TEST_INCLUDES := \
+	$(wildcard lib/py/*.py ../lib/py/*.py) \
+	../../../net/lib.sh \
+	../../../net/forwarding/ipip_lib.sh \
+	../../../net/forwarding/lib.sh \
+	../../../net/forwarding/tc_common.sh \
+	#
+
+# YNL files, must be before "include ..lib.mk"
+YNL_GEN_FILES := \
+	ncdevmem \
+	toeplitz \
+# end of YNL_GEN_FILES
+TEST_GEN_FILES += $(YNL_GEN_FILES)
+TEST_GEN_FILES += $(patsubst %.c,%.o,$(wildcard *.bpf.c))
+
+include ../../../lib.mk
+
+# YNL build
+YNL_GENS := \
+	ethtool \
+	netdev \
+# end of YNL_GENS
+
+include ../../../net/ynl.mk
+
+include ../../../net/bpf.mk
+
+ifeq ($(HAS_IOURING_ZCRX),y)
+$(OUTPUT)/iou-zcrx: LDLIBS += -luring
+endif
diff --git a/tools/testing/selftests/drivers/net/hw/config b/tools/testing/selftests/drivers/net/hw/config
new file mode 100644
index 000000000000..2307aa001be1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/config
@@ -0,0 +1,11 @@
+CONFIG_FAIL_FUNCTION=y
+CONFIG_FAULT_INJECTION=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FUNCTION_ERROR_INJECTION=y
+CONFIG_IO_URING=y
+CONFIG_IPV6=y
+CONFIG_IPV6_GRE=y
+CONFIG_NET_IPGRE=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_UDMABUF=y
+CONFIG_VXLAN=y
diff --git a/tools/testing/selftests/drivers/net/hw/csum.py b/tools/testing/selftests/drivers/net/hw/csum.py
new file mode 100755
index 000000000000..3e3a89a34afe
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/csum.py
@@ -0,0 +1,110 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Run the tools/testing/selftests/net/csum testsuite."""
+
+from os import path
+
+from lib.py import ksft_run, ksft_exit, KsftSkipEx
+from lib.py import EthtoolFamily, NetDrvEpEnv
+from lib.py import bkg, cmd, wait_port_listen
+
+def test_receive(cfg, ipver="6", extra_args=None):
+    """Test local nic checksum receive. Remote host sends crafted packets."""
+    if not cfg.have_rx_csum:
+        raise KsftSkipEx(f"Test requires rx checksum offload on {cfg.ifname}")
+
+    ip_args = f"-{ipver} -S {cfg.remote_addr_v[ipver]} -D {cfg.addr_v[ipver]}"
+
+    rx_cmd = f"{cfg.bin_local} -i {cfg.ifname} -n 100 {ip_args} -r 1 -R {extra_args}"
+    tx_cmd = f"{cfg.bin_remote} -i {cfg.remote_ifname} -n 100 {ip_args} -r 1 -T {extra_args}"
+
+    with bkg(rx_cmd, exit_wait=True):
+        wait_port_listen(34000, proto="udp")
+        cmd(tx_cmd, host=cfg.remote)
+
+
+def test_transmit(cfg, ipver="6", extra_args=None):
+    """Test local nic checksum transmit. Remote host verifies packets."""
+    if (not cfg.have_tx_csum_generic and
+        not (cfg.have_tx_csum_ipv4 and ipver == "4") and
+        not (cfg.have_tx_csum_ipv6 and ipver == "6")):
+        raise KsftSkipEx(f"Test requires tx checksum offload on {cfg.ifname}")
+
+    ip_args = f"-{ipver} -S {cfg.addr_v[ipver]} -D {cfg.remote_addr_v[ipver]}"
+
+    # Cannot randomize input when calculating zero checksum
+    if extra_args != "-U -Z":
+        extra_args += " -r 1"
+
+    rx_cmd = f"{cfg.bin_remote} -i {cfg.remote_ifname} -L 1 -n 100 {ip_args} -R {extra_args}"
+    tx_cmd = f"{cfg.bin_local} -i {cfg.ifname} -L 1 -n 100 {ip_args} -T {extra_args}"
+
+    with bkg(rx_cmd, host=cfg.remote, exit_wait=True):
+        wait_port_listen(34000, proto="udp", host=cfg.remote)
+        cmd(tx_cmd)
+
+
+def test_builder(name, cfg, ipver="6", tx=False, extra_args=""):
+    """Construct specific tests from the common template.
+
+       Most tests follow the same basic pattern, differing only in
+       Direction of the test and optional flags passed to csum."""
+    def f(cfg):
+        cfg.require_ipver(ipver)
+
+        if tx:
+            test_transmit(cfg, ipver, extra_args)
+        else:
+            test_receive(cfg, ipver, extra_args)
+
+    f.__name__ = f"ipv{ipver}_" + name
+    return f
+
+
+def check_nic_features(cfg) -> None:
+    """Test whether Tx and Rx checksum offload are enabled.
+
+       If the device under test has either off, then skip the relevant tests."""
+    cfg.have_tx_csum_generic = False
+    cfg.have_tx_csum_ipv4 = False
+    cfg.have_tx_csum_ipv6 = False
+    cfg.have_rx_csum = False
+
+    ethnl = EthtoolFamily()
+    features = ethnl.features_get({"header": {"dev-index": cfg.ifindex}})
+    for f in features["active"]["bits"]["bit"]:
+        if f["name"] == "tx-checksum-ip-generic":
+            cfg.have_tx_csum_generic = True
+        elif f["name"] == "tx-checksum-ipv4":
+            cfg.have_tx_csum_ipv4 = True
+        elif f["name"] == "tx-checksum-ipv6":
+            cfg.have_tx_csum_ipv6 = True
+        elif f["name"] == "rx-checksum":
+            cfg.have_rx_csum = True
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        check_nic_features(cfg)
+
+        cfg.bin_local = cfg.net_lib_dir / "csum"
+        cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
+
+        cases = []
+        for ipver in ["4", "6"]:
+            cases.append(test_builder("rx_tcp", cfg, ipver, False, "-t"))
+            cases.append(test_builder("rx_tcp_invalid", cfg, ipver, False, "-t -E"))
+
+            cases.append(test_builder("rx_udp", cfg, ipver, False, ""))
+            cases.append(test_builder("rx_udp_invalid", cfg, ipver, False, "-E"))
+
+            cases.append(test_builder("tx_udp_csum_offload", cfg, ipver, True, "-U"))
+            cases.append(test_builder("tx_udp_zero_checksum", cfg, ipver, True, "-U -Z"))
+
+        ksft_run(cases=cases, args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/devlink_port_split.py b/tools/testing/selftests/drivers/net/hw/devlink_port_split.py
new file mode 100755
index 000000000000..2d84c7a0be6b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/devlink_port_split.py
@@ -0,0 +1,309 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from subprocess import PIPE, Popen
+import json
+import time
+import argparse
+import collections
+import sys
+
+#
+# Test port split configuration using devlink-port lanes attribute.
+# The test is skipped in case the attribute is not available.
+#
+# First, check that all the ports with 1 lane fail to split.
+# Second, check that all the ports with more than 1 lane can be split
+# to all valid configurations (e.g., split to 2, split to 4 etc.)
+#
+
+
+# Kselftest framework requirement - SKIP code is 4
+KSFT_SKIP=4
+Port = collections.namedtuple('Port', 'bus_info name')
+
+
+def run_command(cmd, should_fail=False):
+    """
+    Run a command in subprocess.
+    Return: Tuple of (stdout, stderr).
+    """
+
+    p = Popen(cmd, stdout=PIPE, stderr=PIPE, shell=True)
+    stdout, stderr = p.communicate()
+    stdout, stderr = stdout.decode(), stderr.decode()
+
+    if stderr != "" and not should_fail:
+        print("Error sending command: %s" % cmd)
+        print(stdout)
+        print(stderr)
+    return stdout, stderr
+
+
+class devlink_ports(object):
+    """
+    Class that holds information on the devlink ports, required to the tests;
+    if_names: A list of interfaces in the devlink ports.
+    """
+
+    def get_if_names(dev):
+        """
+        Get a list of physical devlink ports.
+        Return: Array of tuples (bus_info/port, if_name).
+        """
+
+        arr = []
+
+        cmd = "devlink -j port show"
+        stdout, stderr = run_command(cmd)
+        assert stderr == ""
+        ports = json.loads(stdout)['port']
+
+        validate_devlink_output(ports, 'flavour')
+
+        for port in ports:
+            if dev in port:
+                if ports[port]['flavour'] == 'physical':
+                    arr.append(Port(bus_info=port, name=ports[port]['netdev']))
+
+        return arr
+
+    def __init__(self, dev):
+        self.if_names = devlink_ports.get_if_names(dev)
+
+
+def get_max_lanes(port):
+    """
+    Get the $port's maximum number of lanes.
+    Return: number of lanes, e.g. 1, 2, 4 and 8.
+    """
+
+    cmd = "devlink -j port show %s" % port
+    stdout, stderr = run_command(cmd)
+    assert stderr == ""
+    values = list(json.loads(stdout)['port'].values())[0]
+
+    if 'lanes' in values:
+        lanes = values['lanes']
+    else:
+        lanes = 0
+    return lanes
+
+
+def get_split_ability(port):
+    """
+    Get the $port split ability.
+    Return: split ability, true or false.
+    """
+
+    cmd = "devlink -j port show %s" % port.name
+    stdout, stderr = run_command(cmd)
+    assert stderr == ""
+    values = list(json.loads(stdout)['port'].values())[0]
+
+    return values['splittable']
+
+
+def split(k, port, should_fail=False):
+    """
+    Split $port into $k ports.
+    If should_fail == True, the split should fail. Otherwise, should pass.
+    Return: Array of sub ports after splitting.
+            If the $port wasn't split, the array will be empty.
+    """
+
+    cmd = "devlink port split %s count %s" % (port.bus_info, k)
+    stdout, stderr = run_command(cmd, should_fail=should_fail)
+
+    if should_fail:
+        if not test(stderr != "", "%s is unsplittable" % port.name):
+            print("split an unsplittable port %s" % port.name)
+            return create_split_group(port, k)
+    else:
+        if stderr == "":
+            return create_split_group(port, k)
+        print("didn't split a splittable port %s" % port.name)
+
+    return []
+
+
+def unsplit(port):
+    """
+    Unsplit $port.
+    """
+
+    cmd = "devlink port unsplit %s" % port
+    stdout, stderr = run_command(cmd)
+    test(stderr == "", "Unsplit port %s" % port)
+
+
+def exists(port, dev):
+    """
+    Check if $port exists in the devlink ports.
+    Return: True is so, False otherwise.
+    """
+
+    return any(dev_port.name == port
+               for dev_port in devlink_ports.get_if_names(dev))
+
+
+def exists_and_lanes(ports, lanes, dev):
+    """
+    Check if every port in the list $ports exists in the devlink ports and has
+    $lanes number of lanes after splitting.
+    Return: True if both are True, False otherwise.
+    """
+
+    for port in ports:
+        max_lanes = get_max_lanes(port)
+        if not exists(port, dev):
+            print("port %s doesn't exist in devlink ports" % port)
+            return False
+        if max_lanes != lanes:
+            print("port %s has %d lanes, but %s were expected"
+                  % (port, lanes, max_lanes))
+            return False
+    return True
+
+
+def test(cond, msg):
+    """
+    Check $cond and print a message accordingly.
+    Return: True is pass, False otherwise.
+    """
+
+    if cond:
+        print("TEST: %-60s [ OK ]" % msg)
+    else:
+        print("TEST: %-60s [FAIL]" % msg)
+
+    return cond
+
+
+def create_split_group(port, k):
+    """
+    Create the split group for $port.
+    Return: Array with $k elements, which are the split port group.
+    """
+
+    return list(port.name + "s" + str(i) for i in range(k))
+
+
+def split_unsplittable_port(port, k):
+    """
+    Test that splitting of unsplittable port fails.
+    """
+
+    # split to max
+    new_split_group = split(k, port, should_fail=True)
+
+    if new_split_group != []:
+        unsplit(port.bus_info)
+
+
+def split_splittable_port(port, k, lanes, dev):
+    """
+    Test that splitting of splittable port passes correctly.
+    """
+
+    new_split_group = split(k, port)
+
+    # Once the split command ends, it takes some time to the sub ifaces'
+    # to get their names. Use udevadm to continue only when all current udev
+    # events are handled.
+    cmd = "udevadm settle"
+    stdout, stderr = run_command(cmd)
+    assert stderr == ""
+
+    if new_split_group != []:
+        test(exists_and_lanes(new_split_group, lanes/k, dev),
+             "split port %s into %s" % (port.name, k))
+
+    unsplit(port.bus_info)
+
+
+def validate_devlink_output(devlink_data, target_property=None):
+    """
+    Determine if test should be skipped by checking:
+      1. devlink_data contains values
+      2. The target_property exist in devlink_data
+    """
+    skip_reason = None
+    if any(devlink_data.values()):
+        if target_property:
+            skip_reason = "{} not found in devlink output, test skipped".format(target_property)
+            for key in devlink_data:
+                if target_property in devlink_data[key]:
+                    skip_reason = None
+    else:
+        skip_reason = 'devlink output is empty, test skipped'
+
+    if skip_reason:
+        print(skip_reason)
+        sys.exit(KSFT_SKIP)
+
+
+def make_parser():
+    parser = argparse.ArgumentParser(description='A test for port splitting.')
+    parser.add_argument('--dev',
+                        help='The devlink handle of the device under test. ' +
+                             'The default is the first registered devlink ' +
+                             'handle.')
+
+    return parser
+
+
+def main(cmdline=None):
+    parser = make_parser()
+    args = parser.parse_args(cmdline)
+
+    dev = args.dev
+    if not dev:
+        cmd = "devlink -j dev show"
+        stdout, stderr = run_command(cmd)
+        assert stderr == ""
+
+        validate_devlink_output(json.loads(stdout))
+        devs = json.loads(stdout)['dev']
+        dev = list(devs.keys())[0]
+
+    cmd = "devlink dev show %s" % dev
+    stdout, stderr = run_command(cmd)
+    if stderr != "":
+        print("devlink device %s can not be found" % dev)
+        sys.exit(1)
+
+    ports = devlink_ports(dev)
+
+    found_max_lanes = False
+    for port in ports.if_names:
+        max_lanes = get_max_lanes(port.name)
+
+        # If max lanes is 0, do not test port splitting at all
+        if max_lanes == 0:
+            continue
+
+        # If 1 lane, shouldn't be able to split
+        elif max_lanes == 1:
+            test(not get_split_ability(port),
+                 "%s should not be able to split" % port.name)
+            split_unsplittable_port(port, max_lanes)
+
+        # Else, splitting should pass and all the split ports should exist.
+        else:
+            lane = max_lanes
+            test(get_split_ability(port),
+                 "%s should be able to split" % port.name)
+            while lane > 1:
+                split_splittable_port(port, lane, max_lanes, dev)
+
+                lane //= 2
+        found_max_lanes = True
+
+    if not found_max_lanes:
+        print(f"Test not started, no port of device {dev} reports max_lanes")
+        sys.exit(KSFT_SKIP)
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/devlink_rate_tc_bw.py b/tools/testing/selftests/drivers/net/hw/devlink_rate_tc_bw.py
new file mode 100755
index 000000000000..4e4faa9275bb
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/devlink_rate_tc_bw.py
@@ -0,0 +1,439 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Devlink Rate TC Bandwidth Test Suite
+===================================
+
+This test suite verifies the functionality of devlink-rate traffic class (TC)
+bandwidth distribution in a virtualized environment. The tests validate that
+bandwidth can be properly allocated between different traffic classes and
+that TC mapping works as expected.
+
+Test Environment:
+----------------
+- Creates 1 VF
+- Establishes a bridge connecting the VF representor and the uplink representor
+- Sets up 2 VLAN interfaces on the VF with different VLAN IDs (101, 102)
+- Configures different traffic classes (TC3 and TC4) for each VLAN
+
+Test Cases:
+----------
+1. test_no_tc_mapping_bandwidth:
+   - Verifies that without TC mapping, bandwidth is NOT distributed according to
+     the configured 20/80 split between TC3 and TC4
+   - This test should fail if bandwidth matches the 20/80 split without TC
+     mapping
+   - Expected: Bandwidth should NOT be distributed as 20/80
+
+2. test_tc_mapping_bandwidth:
+   - Configures TC mapping using mqprio qdisc
+   - Verifies that with TC mapping, bandwidth IS distributed according to the
+     configured 20/80 split between TC3 and TC4
+   - Expected: Bandwidth should be distributed as 20/80
+
+Bandwidth Distribution:
+----------------------
+- TC3 (VLAN 101): Configured for 20% of total bandwidth
+- TC4 (VLAN 102): Configured for 80% of total bandwidth
+- Total bandwidth: 1Gbps
+- Tolerance: +-12%
+
+Hardware-Specific Behavior (mlx5):
+--------------------------
+mlx5 hardware enforces traffic class separation by ensuring that each transmit
+queue (SQ) is associated with a single TC. If a packet is sent on a queue that
+doesn't match the expected TC (based on DSCP or VLAN priority and hypervisor-set
+mapping), the hardware moves the queue to the correct TC scheduler to preserve
+traffic isolation.
+
+This behavior means that even without explicit TC-to-queue mapping, bandwidth
+enforcement may still appear to work—because the hardware dynamically adjusts
+the scheduling context. However, this can lead to performance issues in high
+rates and HOL blocking if traffic from different TCs is mixed on the same queue.
+"""
+
+import json
+import os
+import subprocess
+import threading
+import time
+
+from lib.py import ksft_pr, ksft_run, ksft_exit
+from lib.py import KsftSkipEx, KsftFailEx, KsftXfailEx
+from lib.py import NetDrvEpEnv, DevlinkFamily
+from lib.py import NlError
+from lib.py import cmd, defer, ethtool, ip
+from lib.py import Iperf3Runner
+
+
+class BandwidthValidator:
+    """
+    Validates total bandwidth and individual shares with tolerance
+    relative to the overall total.
+    """
+
+    def __init__(self, shares):
+        self.tolerance_percent = 12
+        self.expected_total = sum(shares.values())
+        self.bounds = {}
+
+        for name, exp in shares.items():
+            self.bounds[name] = (self.min_expected(exp), self.max_expected(exp))
+
+    def min_expected(self, value):
+        """Calculates the minimum acceptable value based on tolerance."""
+        return value - (self.expected_total * self.tolerance_percent / 100)
+
+    def max_expected(self, value):
+        """Calculates the maximum acceptable value based on tolerance."""
+        return value + (self.expected_total * self.tolerance_percent / 100)
+
+    def bound(self, values):
+        """
+        Return True if all given values fall within tolerance.
+        """
+        for name, value in values.items():
+            low, high = self.bounds[name]
+            if not low <= value <= high:
+                return False
+        return True
+
+
+def setup_vf(cfg, set_tc_mapping=True):
+    """
+    Sets up a VF on the given network interface.
+
+    Enables SR-IOV and switchdev mode, brings the VF interface up,
+    and optionally configures TC mapping using mqprio.
+    """
+    try:
+        cmd(f"devlink dev eswitch set pci/{cfg.pci} mode switchdev")
+        defer(cmd, f"devlink dev eswitch set pci/{cfg.pci} mode legacy")
+    except Exception as exc:
+        raise KsftSkipEx(f"Failed to enable switchdev mode on {cfg.pci}") from exc
+    try:
+        cmd(f"echo 1 > /sys/class/net/{cfg.ifname}/device/sriov_numvfs", shell=True)
+        defer(cmd, f"echo 0 > /sys/class/net/{cfg.ifname}/device/sriov_numvfs", shell=True)
+    except Exception as exc:
+        raise KsftSkipEx(f"Failed to enable SR-IOV on {cfg.ifname}") from exc
+
+    time.sleep(2)
+    vf_ifc = (os.listdir(
+        f"/sys/class/net/{cfg.ifname}/device/virtfn0/net") or [None])[0]
+    if vf_ifc:
+        ip(f"link set dev {vf_ifc} up")
+    else:
+        raise KsftSkipEx("VF interface not found")
+    if set_tc_mapping:
+        cmd(f"tc qdisc add dev {vf_ifc} root handle 5 mqprio mode dcb hw 1 num_tc 8")
+
+    return vf_ifc
+
+
+def setup_vlans_on_vf(vf_ifc):
+    """
+    Sets up two VLAN interfaces on the given VF, each mapped to a different TC.
+    """
+    vlan_configs = [
+        {"vlan_id": 101, "tc": 3, "ip": "198.51.100.1"},
+        {"vlan_id": 102, "tc": 4, "ip": "198.51.100.9"},
+    ]
+
+    for config in vlan_configs:
+        vlan_dev = f"{vf_ifc}.{config['vlan_id']}"
+        ip(f"link add link {vf_ifc} name {vlan_dev} type vlan id {config['vlan_id']}")
+        ip(f"addr add {config['ip']}/29 dev {vlan_dev}")
+        ip(f"link set dev {vlan_dev} up")
+        ip(f"link set dev {vlan_dev} type vlan egress-qos-map 0:{config['tc']}")
+        ksft_pr(f"Created VLAN {vlan_dev} on {vf_ifc} with tc {config['tc']} and IP {config['ip']}")
+
+
+def get_vf_info(cfg):
+    """
+    Finds the VF representor interface and devlink port index
+    for the given PCI device used in the test environment.
+    """
+    cfg.vf_representor = None
+    cfg.vf_port_index = None
+    out = subprocess.check_output(["devlink", "-j", "port", "show"], encoding="utf-8")
+    ports = json.loads(out)["port"]
+
+    for port_name, props in ports.items():
+        netdev = props.get("netdev")
+
+        if (port_name.startswith(f"pci/{cfg.pci}/") and
+            props.get("vfnum") == 0):
+            cfg.vf_representor = netdev
+            cfg.vf_port_index = int(port_name.split("/")[-1])
+            break
+
+
+def setup_bridge(cfg):
+    """
+    Creates and configures a Linux bridge, with both the uplink
+    and VF representor interfaces attached to it.
+    """
+    bridge_name = f"br_{os.getpid()}"
+    ip(f"link add name {bridge_name} type bridge")
+    defer(cmd, f"ip link del name {bridge_name} type bridge")
+
+    ip(f"link set dev {cfg.ifname} master {bridge_name}")
+
+    rep_name = cfg.vf_representor
+    if rep_name:
+        ip(f"link set dev {rep_name} master {bridge_name}")
+        ip(f"link set dev {rep_name} up")
+        ksft_pr(f"Set representor {rep_name} up and added to bridge")
+    else:
+        raise KsftSkipEx("Could not find representor for the VF")
+
+    ip(f"link set dev {bridge_name} up")
+
+
+def setup_devlink_rate(cfg):
+    """
+    Configures devlink rate tx_max and traffic class bandwidth for the VF.
+    """
+    port_index = cfg.vf_port_index
+    if port_index is None:
+        raise KsftSkipEx("Could not find VF port index")
+    try:
+        cfg.devnl.rate_set({
+            "bus-name": "pci",
+            "dev-name": cfg.pci,
+            "port-index": port_index,
+            "rate-tx-max": 125000000,
+            "rate-tc-bws": [
+                {"index": 0, "bw": 0},
+                {"index": 1, "bw": 0},
+                {"index": 2, "bw": 0},
+                {"index": 3, "bw": 20},
+                {"index": 4, "bw": 80},
+                {"index": 5, "bw": 0},
+                {"index": 6, "bw": 0},
+                {"index": 7, "bw": 0},
+            ]
+        })
+    except NlError as exc:
+        if exc.error == 95:  # EOPNOTSUPP
+            raise KsftSkipEx("devlink rate configuration is not supported on the VF") from exc
+        raise KsftFailEx(f"rate_set failed on VF port {port_index}") from exc
+
+
+def setup_remote_vlans(cfg):
+    """
+    Sets up VLAN interfaces on the remote side.
+    """
+    remote_dev = cfg.remote_ifname
+    vlan_ids = [101, 102]
+    remote_ips = ["198.51.100.2", "198.51.100.10"]
+
+    for vlan_id, ip_addr in zip(vlan_ids, remote_ips):
+        vlan_dev = f"{remote_dev}.{vlan_id}"
+        cmd(f"ip link add link {remote_dev} name {vlan_dev} "
+            f"type vlan id {vlan_id}", host=cfg.remote)
+        cmd(f"ip addr add {ip_addr}/29 dev {vlan_dev}", host=cfg.remote)
+        cmd(f"ip link set dev {vlan_dev} up", host=cfg.remote)
+        defer(cmd, f"ip link del {vlan_dev}", host=cfg.remote)
+
+
+def setup_test_environment(cfg, set_tc_mapping=True):
+    """
+    Sets up the complete test environment including VF creation, VLANs,
+    bridge configuration and devlink rate setup.
+    """
+    vf_ifc = setup_vf(cfg, set_tc_mapping)
+    ksft_pr(f"Created VF interface: {vf_ifc}")
+
+    setup_vlans_on_vf(vf_ifc)
+
+    get_vf_info(cfg)
+    setup_bridge(cfg)
+
+    setup_devlink_rate(cfg)
+    setup_remote_vlans(cfg)
+
+
+def measure_bandwidth(cfg, server_ip, client_ip, barrier):
+    """
+    Synchronizes with peers and runs an iperf3-based bandwidth measurement
+    between the given endpoints. Returns average Gbps.
+    """
+    runner = Iperf3Runner(cfg, server_ip=server_ip, client_ip=client_ip)
+    try:
+        barrier.wait(timeout=10)
+    except Exception as exc:
+        raise KsftFailEx("iperf3 barrier wait timed") from exc
+
+    try:
+        bw_gbps = runner.measure_bandwidth(reverse=True)
+    except Exception as exc:
+        raise KsftFailEx("iperf3 bandwidth measurement failed") from exc
+
+    return bw_gbps
+
+
+def run_bandwidth_test(cfg):
+    """
+    Runs parallel bandwidth measurements for each VLAN/TC pair and collects results.
+    """
+    def _run_measure_bandwidth_thread(local_ip, remote_ip, results, barrier, tc_ix):
+        results[tc_ix] = measure_bandwidth(cfg, local_ip, remote_ip, barrier)
+
+    vf_vlan_data = [
+        # (local_ip, remote_ip, TC)
+        ("198.51.100.1",  "198.51.100.2", 3),
+        ("198.51.100.9", "198.51.100.10", 4),
+    ]
+
+    results = {}
+    threads = []
+    start_barrier = threading.Barrier(len(vf_vlan_data))
+
+    for local_ip, remote_ip, tc_ix in vf_vlan_data:
+        thread = threading.Thread(
+            target=_run_measure_bandwidth_thread,
+            args=(local_ip, remote_ip, results, start_barrier, tc_ix)
+        )
+        thread.start()
+        threads.append(thread)
+
+    for thread in threads:
+        thread.join()
+
+    for tc_ix, tc_bw in results.items():
+        if tc_bw is None:
+            raise KsftFailEx("iperf3 failed; cannot evaluate bandwidth")
+
+    return results
+
+
+def calculate_bandwidth_percentages(results):
+    """
+    Calculates the percentage of total bandwidth received by TC3 and TC4.
+    """
+    if 3 not in results or 4 not in results:
+        raise KsftFailEx(f"Missing expected TC results in {results}")
+
+    tc3_bw = results[3]
+    tc4_bw = results[4]
+    total_bw = tc3_bw + tc4_bw
+    tc3_percentage = (tc3_bw / total_bw) * 100
+    tc4_percentage = (tc4_bw / total_bw) * 100
+
+    return {
+        'tc3_bw': tc3_bw,
+        'tc4_bw': tc4_bw,
+        'tc3_percentage': tc3_percentage,
+        'tc4_percentage': tc4_percentage,
+        'total_bw': total_bw
+    }
+
+
+def print_bandwidth_results(bw_data, test_name):
+    """
+    Prints bandwidth measurements and TC usage summary for a given test.
+    """
+    ksft_pr(f"Bandwidth check results {test_name}:")
+    ksft_pr(f"TC 3: {bw_data['tc3_bw']:.2f} Gbits/sec")
+    ksft_pr(f"TC 4: {bw_data['tc4_bw']:.2f} Gbits/sec")
+    ksft_pr(f"Total bandwidth: {bw_data['total_bw']:.2f} Gbits/sec")
+    ksft_pr(f"TC 3 percentage: {bw_data['tc3_percentage']:.1f}%")
+    ksft_pr(f"TC 4 percentage: {bw_data['tc4_percentage']:.1f}%")
+
+
+def verify_total_bandwidth(bw_data, validator):
+    """
+    Ensures the total measured bandwidth falls within the acceptable tolerance.
+    """
+    total = bw_data['total_bw']
+
+    if validator.bound({"total": total}):
+        return
+
+    low, high = validator.bounds["total"]
+
+    if total < low:
+        raise KsftSkipEx(
+            f"Total bandwidth {total:.2f} Gbps < minimum "
+            f"{low:.2f} Gbps; "
+            f"parent tx_max ({validator.expected_total:.1f} G) "
+            f"not reached, cannot validate share"
+        )
+
+    raise KsftFailEx(
+        f"Total bandwidth {total:.2f} Gbps exceeds allowed ceiling "
+        f"{high:.2f} Gbps "
+        f"(VF tx_max set to {validator.expected_total:.1f} G)"
+    )
+
+
+def run_bandwidth_distribution_test(cfg, set_tc_mapping):
+    """
+    Runs parallel bandwidth measurements for both TCs and collects results.
+    """
+    setup_test_environment(cfg, set_tc_mapping)
+    bandwidths = run_bandwidth_test(cfg)
+    bw_data = calculate_bandwidth_percentages(bandwidths)
+    test_name = "with TC mapping" if set_tc_mapping else "without TC mapping"
+    print_bandwidth_results(bw_data, test_name)
+
+    verify_total_bandwidth(bw_data, cfg.traffic_bw_validator)
+
+    return cfg.tc_bw_validator.bound({"tc3": bw_data['tc3_percentage'],
+                                     "tc4": bw_data['tc4_percentage']})
+
+
+def test_no_tc_mapping_bandwidth(cfg):
+    """
+    Verifies that bandwidth is not split 20/80 without traffic class mapping.
+    """
+    pass_bw_msg = "Bandwidth is NOT distributed as 20/80 without TC mapping"
+    fail_bw_msg = "Bandwidth matched 20/80 split without TC mapping"
+    is_mlx5 = "driver: mlx5" in ethtool(f"-i {cfg.ifname}").stdout
+
+    if run_bandwidth_distribution_test(cfg, set_tc_mapping=False):
+        if is_mlx5:
+            raise KsftXfailEx(fail_bw_msg)
+        raise KsftFailEx(fail_bw_msg)
+    if is_mlx5:
+        raise KsftFailEx("mlx5 behavior changed:" + pass_bw_msg)
+    ksft_pr(pass_bw_msg)
+
+
+def test_tc_mapping_bandwidth(cfg):
+    """
+    Verifies that bandwidth is correctly split 20/80 between TC3 and TC4
+    when traffic class mapping is set.
+    """
+    if run_bandwidth_distribution_test(cfg, set_tc_mapping=True):
+        ksft_pr("Bandwidth is distributed as 20/80 with TC mapping")
+    else:
+        raise KsftFailEx("Bandwidth did not match 20/80 split with TC mapping")
+
+
+def main() -> None:
+    """
+    Main entry point for running the test cases.
+    """
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        cfg.devnl = DevlinkFamily()
+
+        cfg.pci = os.path.basename(
+            os.path.realpath(f"/sys/class/net/{cfg.ifname}/device")
+        )
+        if not cfg.pci:
+            raise KsftSkipEx("Could not get PCI address of the interface")
+
+        cfg.traffic_bw_validator = BandwidthValidator({"total": 1})
+        cfg.tc_bw_validator = BandwidthValidator({"tc3": 20, "tc4": 80})
+
+        cases = [test_no_tc_mapping_bandwidth, test_tc_mapping_bandwidth]
+
+        ksft_run(cases=cases, args=(cfg,))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/devmem.py b/tools/testing/selftests/drivers/net/hw/devmem.py
new file mode 100755
index 000000000000..45c2d49d55b6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/devmem.py
@@ -0,0 +1,77 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from os import path
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_eq, KsftSkipEx
+from lib.py import NetDrvEpEnv
+from lib.py import bkg, cmd, rand_port, wait_port_listen
+from lib.py import ksft_disruptive
+
+
+def require_devmem(cfg):
+    if not hasattr(cfg, "_devmem_probed"):
+        probe_command = f"{cfg.bin_local} -f {cfg.ifname}"
+        cfg._devmem_supported = cmd(probe_command, fail=False, shell=True).ret == 0
+        cfg._devmem_probed = True
+
+    if not cfg._devmem_supported:
+        raise KsftSkipEx("Test requires devmem support")
+
+
+@ksft_disruptive
+def check_rx(cfg) -> None:
+    require_devmem(cfg)
+
+    port = rand_port()
+    socat = f"socat -u - TCP{cfg.addr_ipver}:{cfg.baddr}:{port},bind={cfg.remote_baddr}:{port}"
+    listen_cmd = f"{cfg.bin_local} -l -f {cfg.ifname} -s {cfg.addr} -p {port} -c {cfg.remote_addr} -v 7"
+
+    with bkg(listen_cmd, exit_wait=True) as ncdevmem:
+        wait_port_listen(port)
+        cmd(f"yes $(echo -e \x01\x02\x03\x04\x05\x06) | \
+            head -c 1K | {socat}", host=cfg.remote, shell=True)
+
+    ksft_eq(ncdevmem.ret, 0)
+
+
+@ksft_disruptive
+def check_tx(cfg) -> None:
+    require_devmem(cfg)
+
+    port = rand_port()
+    listen_cmd = f"socat -U - TCP{cfg.addr_ipver}-LISTEN:{port}"
+
+    with bkg(listen_cmd, host=cfg.remote, exit_wait=True) as socat:
+        wait_port_listen(port, host=cfg.remote)
+        cmd(f"echo -e \"hello\\nworld\"| {cfg.bin_local} -f {cfg.ifname} -s {cfg.remote_addr} -p {port}", shell=True)
+
+    ksft_eq(socat.stdout.strip(), "hello\nworld")
+
+
+@ksft_disruptive
+def check_tx_chunks(cfg) -> None:
+    require_devmem(cfg)
+
+    port = rand_port()
+    listen_cmd = f"socat -U - TCP{cfg.addr_ipver}-LISTEN:{port}"
+
+    with bkg(listen_cmd, host=cfg.remote, exit_wait=True) as socat:
+        wait_port_listen(port, host=cfg.remote)
+        cmd(f"echo -e \"hello\\nworld\"| {cfg.bin_local} -f {cfg.ifname} -s {cfg.remote_addr} -p {port} -z 3", shell=True)
+
+    ksft_eq(socat.stdout.strip(), "hello\nworld")
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.bin_local = path.abspath(path.dirname(__file__) + "/ncdevmem")
+        cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
+
+        ksft_run([check_rx, check_tx, check_tx_chunks],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/ethtool.sh b/tools/testing/selftests/drivers/net/hw/ethtool.sh
new file mode 100755
index 000000000000..fa6953de6b6d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ethtool.sh
@@ -0,0 +1,297 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	same_speeds_autoneg_off
+	different_speeds_autoneg_off
+	combination_of_neg_on_and_off
+	advertise_subset_of_speeds
+	check_highest_speed_is_chosen
+	different_speeds_autoneg_on
+"
+NUM_NETIFS=2
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source ethtool_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+}
+
+same_speeds_autoneg_off()
+{
+	# Check that when each of the reported speeds is forced, the links come
+	# up and are operational.
+	local -a speeds_arr=($(common_speeds_get $h1 $h2 0 0))
+
+	for speed in "${speeds_arr[@]}"; do
+		RET=0
+		ethtool_set $h1 speed $speed autoneg off
+		ethtool_set $h2 speed $speed autoneg off
+
+		setup_wait_dev_with_timeout $h1
+		setup_wait_dev_with_timeout $h2
+		ping_do $h1 192.0.2.2
+		check_err $? "ping with speed $speed autoneg off"
+		log_test "force speed $speed on both ends"
+	done
+
+	ethtool -s $h2 autoneg on
+	ethtool -s $h1 autoneg on
+}
+
+different_speeds_autoneg_off()
+{
+	# Test that when we force different speeds, links are not up and ping
+	# fails.
+	RET=0
+
+	local -a speeds_arr=($(different_speeds_get $h1 $h2 0 0))
+	local speed1=${speeds_arr[0]}
+	local speed2=${speeds_arr[1]}
+
+	ethtool_set $h1 speed $speed1 autoneg off
+	ethtool_set $h2 speed $speed2 autoneg off
+
+	setup_wait_dev_with_timeout $h1
+	setup_wait_dev_with_timeout $h2
+	ping_do $h1 192.0.2.2
+	check_fail $? "ping with different speeds"
+
+	log_test "force of different speeds autoneg off"
+
+	ethtool -s $h2 autoneg on
+	ethtool -s $h1 autoneg on
+}
+
+combination_of_neg_on_and_off()
+{
+	# Test that when one device is forced to a speed supported by both
+	# endpoints and the other device is configured to autoneg on, the links
+	# are up and ping passes.
+	local -a speeds_arr=($(common_speeds_get $h1 $h2 0 1))
+
+	for speed in "${speeds_arr[@]}"; do
+		RET=0
+		ethtool_set $h1 speed $speed autoneg off
+
+		setup_wait_dev_with_timeout $h1
+		setup_wait_dev_with_timeout $h2
+		ping_do $h1 192.0.2.2
+		check_err $? "ping with h1-speed=$speed autoneg off, h2 autoneg on"
+		log_test "force speed $speed vs. autoneg"
+	done
+
+	ethtool -s $h1 autoneg on
+}
+
+hex_speed_value_get()
+{
+	local speed=$1; shift
+
+	local shift_size=${speed_values[$speed]}
+	speed=$((0x1 << $"shift_size"))
+	printf "%#x" "$speed"
+}
+
+subset_of_common_speeds_get()
+{
+	local dev1=$1; shift
+	local dev2=$1; shift
+	local adver=$1; shift
+
+	local -a speeds_arr=($(common_speeds_get $dev1 $dev2 0 $adver))
+	local speed_to_advertise=0
+	local speed_to_remove=${speeds_arr[0]}
+	speed_to_remove+='base'
+
+	local -a speeds_mode_arr=($(common_speeds_get $dev1 $dev2 1 $adver))
+
+	for speed in ${speeds_mode_arr[@]}; do
+		if [[ $speed != $speed_to_remove* ]]; then
+			speed=$(hex_speed_value_get $speed)
+			speed_to_advertise=$(($speed_to_advertise | \
+						$speed))
+		fi
+
+	done
+
+	# Convert to hex.
+	printf "%#x" "$speed_to_advertise"
+}
+
+speed_to_advertise_get()
+{
+	# The function returns the hex number that is composed by OR-ing all
+	# the modes corresponding to the provided speed.
+	local speed_without_mode=$1; shift
+	local supported_speeds=("$@"); shift
+	local speed_to_advertise=0
+
+	speed_without_mode+='base'
+
+	for speed in ${supported_speeds[@]}; do
+		if [[ $speed == $speed_without_mode* ]]; then
+			speed=$(hex_speed_value_get $speed)
+			speed_to_advertise=$(($speed_to_advertise | \
+						$speed))
+		fi
+
+	done
+
+	# Convert to hex.
+	printf "%#x" "$speed_to_advertise"
+}
+
+advertise_subset_of_speeds()
+{
+	# Test that when one device advertises a subset of speeds and another
+	# advertises a specific speed (but all modes of this speed), the links
+	# are up and ping passes.
+	RET=0
+
+	local speed_1_to_advertise=$(subset_of_common_speeds_get $h1 $h2 1)
+	ethtool_set $h1 advertise $speed_1_to_advertise
+
+	if [ $RET != 0 ]; then
+		log_test "advertise subset of speeds"
+		return
+	fi
+
+	local -a speeds_arr_without_mode=($(common_speeds_get $h1 $h2 0 1))
+	# Check only speeds that h1 advertised. Remove the first speed.
+	unset speeds_arr_without_mode[0]
+	local -a speeds_arr_with_mode=($(common_speeds_get $h1 $h2 1 1))
+
+	for speed_value in ${speeds_arr_without_mode[@]}; do
+		RET=0
+		local speed_2_to_advertise=$(speed_to_advertise_get $speed_value \
+			"${speeds_arr_with_mode[@]}")
+		ethtool_set $h2 advertise $speed_2_to_advertise
+
+		setup_wait_dev_with_timeout $h1
+		setup_wait_dev_with_timeout $h2
+		ping_do $h1 192.0.2.2
+		check_err $? "ping with h1=$speed_1_to_advertise, h2=$speed_2_to_advertise ($speed_value)"
+
+		log_test "advertise $speed_1_to_advertise vs. $speed_2_to_advertise"
+	done
+
+	ethtool -s $h2 autoneg on
+	ethtool -s $h1 autoneg on
+}
+
+check_highest_speed_is_chosen()
+{
+	# Test that when one device advertises a subset of speeds, the other
+	# chooses the highest speed. This test checks configuration without
+	# traffic.
+	RET=0
+
+	local max_speed
+	local chosen_speed
+	local speed_to_advertise=$(subset_of_common_speeds_get $h1 $h2 1)
+
+	ethtool_set $h1 advertise $speed_to_advertise
+
+	if [ $RET != 0 ]; then
+		log_test "check highest speed"
+		return
+	fi
+
+	local -a speeds_arr=($(common_speeds_get $h1 $h2 0 1))
+
+	max_speed=${speeds_arr[0]}
+	for current in ${speeds_arr[@]}; do
+		if [[ $current -gt $max_speed ]]; then
+			max_speed=$current
+		fi
+	done
+
+	setup_wait_dev_with_timeout $h1
+	setup_wait_dev_with_timeout $h2
+	chosen_speed=$(ethtool $h1 | grep 'Speed:')
+	chosen_speed=${chosen_speed%"Mb/s"*}
+	chosen_speed=${chosen_speed#*"Speed: "}
+	((chosen_speed == max_speed))
+	check_err $? "h1 advertise $speed_to_advertise, h2 sync to speed $chosen_speed"
+
+	log_test "check highest speed"
+
+	ethtool -s $h2 autoneg on
+	ethtool -s $h1 autoneg on
+}
+
+different_speeds_autoneg_on()
+{
+	# Test that when we configure links to advertise different speeds,
+	# links are not up and ping fails.
+	RET=0
+
+	local -a speeds=($(different_speeds_get $h1 $h2 1 1))
+	local speed1=${speeds[0]}
+	local speed2=${speeds[1]}
+
+	speed1=$(hex_speed_value_get $speed1)
+	speed2=$(hex_speed_value_get $speed2)
+
+	ethtool_set $h1 advertise $speed1
+	ethtool_set $h2 advertise $speed2
+
+	if (($RET)); then
+		setup_wait_dev_with_timeout $h1
+		setup_wait_dev_with_timeout $h2
+		ping_do $h1 192.0.2.2
+		check_fail $? "ping with different speeds autoneg on"
+	fi
+
+	log_test "advertise different speeds autoneg on"
+
+	ethtool -s $h2 autoneg on
+	ethtool -s $h1 autoneg on
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+declare -gA speed_values
+eval "speed_values=($(speeds_arr_get))"
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/ethtool_extended_state.sh b/tools/testing/selftests/drivers/net/hw/ethtool_extended_state.sh
new file mode 100755
index 000000000000..a7584448416e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ethtool_extended_state.sh
@@ -0,0 +1,116 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	autoneg
+	autoneg_force_mode
+	no_cable
+"
+
+NUM_NETIFS=2
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source ethtool_lib.sh
+
+TIMEOUT=$((WAIT_TIMEOUT * 1000)) # ms
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+	swp3=$NETIF_NO_CABLE
+}
+
+ethtool_ext_state()
+{
+	local dev=$1; shift
+	local expected_ext_state=$1; shift
+	local expected_ext_substate=${1:-""}; shift
+
+	local ext_state=$(ethtool $dev | grep "Link detected" \
+		| cut -d "(" -f2 | cut -d ")" -f1)
+	local ext_substate=$(echo $ext_state | cut -sd "," -f2 \
+		| sed -e 's/^[[:space:]]*//')
+	ext_state=$(echo $ext_state | cut -d "," -f1)
+
+	if [[ $ext_state != $expected_ext_state ]]; then
+		echo "Expected \"$expected_ext_state\", got \"$ext_state\""
+		return 1
+	fi
+	if [[ $ext_substate != $expected_ext_substate ]]; then
+		echo "Expected \"$expected_ext_substate\", got \"$ext_substate\""
+		return 1
+	fi
+}
+
+autoneg()
+{
+	local msg
+
+	RET=0
+
+	ip link set dev $swp1 up
+
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp1 \
+			"Autoneg" "No partner detected")
+	check_err $? "$msg"
+
+	log_test "Autoneg, No partner detected"
+
+	ip link set dev $swp1 down
+}
+
+autoneg_force_mode()
+{
+	local msg
+
+	RET=0
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	local -a speeds_arr=($(different_speeds_get $swp1 $swp2 0 0))
+	local speed1=${speeds_arr[0]}
+	local speed2=${speeds_arr[1]}
+
+	ethtool_set $swp1 speed $speed1 autoneg off
+	ethtool_set $swp2 speed $speed2 autoneg off
+
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp1 \
+			"Autoneg" "No partner detected during force mode")
+	check_err $? "$msg"
+
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp2 \
+			"Autoneg" "No partner detected during force mode")
+	check_err $? "$msg"
+
+	log_test "Autoneg, No partner detected during force mode"
+
+	ethtool -s $swp2 autoneg on
+	ethtool -s $swp1 autoneg on
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+no_cable()
+{
+	local msg
+
+	RET=0
+
+	ip link set dev $swp3 up
+
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp3 "No cable")
+	check_err $? "$msg"
+
+	log_test "No cable"
+
+	ip link set dev $swp3 down
+}
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/ethtool_lib.sh b/tools/testing/selftests/drivers/net/hw/ethtool_lib.sh
new file mode 100644
index 000000000000..b9bfb45085af
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ethtool_lib.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+speeds_arr_get()
+{
+	cmd='/ETHTOOL_LINK_MODE_[^[:space:]]*_BIT[[:space:]]+=[[:space:]]+/ \
+		{sub(/,$/, "") \
+		sub(/ETHTOOL_LINK_MODE_/,"") \
+		sub(/_BIT/,"") \
+		sub(/_Full/,"/Full") \
+		sub(/_Half/,"/Half");\
+		print "["$1"]="$3}'
+
+	awk "${cmd}" /usr/include/linux/ethtool.h
+}
+
+ethtool_set()
+{
+	local cmd="$@"
+	local out=$(ethtool -s $cmd 2>&1 | wc -l)
+
+	check_err $out "error in configuration. $cmd"
+}
+
+dev_linkmodes_params_get()
+{
+	local dev=$1; shift
+	local adver=$1; shift
+	local -a linkmodes_params
+	local param_count
+	local arr
+
+	if (($adver)); then
+		mode="Advertised link modes"
+	else
+		mode="Supported link modes"
+	fi
+
+	local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver))
+	for ((i=0; i<${#dev_linkmodes[@]}; i++)); do
+		linkmodes_params[$i]=$(echo -e "${dev_linkmodes[$i]}" | \
+			# Replaces all non numbers with spaces
+			sed -e 's/[^0-9]/ /g' | \
+			# Squeeze spaces in sequence to 1 space
+			tr -s ' ')
+		# Count how many numbers were found in the linkmode
+		param_count=$(echo "${linkmodes_params[$i]}" | wc -w)
+		if [[ $param_count -eq 1 ]]; then
+			linkmodes_params[$i]="${linkmodes_params[$i]} 1"
+		elif [[ $param_count -ge 3 ]]; then
+			arr=(${linkmodes_params[$i]})
+			# Take only first two params
+			linkmodes_params[$i]=$(echo "${arr[@]:0:2}")
+		fi
+	done
+	echo ${linkmodes_params[@]}
+}
+
+dev_speeds_get()
+{
+	local dev=$1; shift
+	local with_mode=$1; shift
+	local adver=$1; shift
+	local speeds_str
+
+	if (($adver)); then
+		mode="Advertised link modes"
+	else
+		mode="Supported link modes"
+	fi
+
+	speeds_str=$(ethtool "$dev" | \
+		# Snip everything before the link modes section.
+		sed -n '/'"$mode"':/,$p' | \
+		# Quit processing the rest at the start of the next section.
+		# When checking, skip the header of this section (hence the 2,).
+		sed -n '2,${/^[\t][^ \t]/q};p' | \
+		# Drop the section header of the current section.
+		cut -d':' -f2)
+
+	local -a speeds_arr=($speeds_str)
+	if [[ $with_mode -eq 0 ]]; then
+		for ((i=0; i<${#speeds_arr[@]}; i++)); do
+			speeds_arr[$i]=${speeds_arr[$i]%base*}
+		done
+	fi
+	echo ${speeds_arr[@]}
+}
+
+common_speeds_get()
+{
+	dev1=$1; shift
+	dev2=$1; shift
+	with_mode=$1; shift
+	adver=$1; shift
+
+	local -a dev1_speeds=($(dev_speeds_get $dev1 $with_mode $adver))
+	local -a dev2_speeds=($(dev_speeds_get $dev2 $with_mode $adver))
+
+	comm -12 \
+		<(printf '%s\n' "${dev1_speeds[@]}" | sort -u) \
+		<(printf '%s\n' "${dev2_speeds[@]}" | sort -u)
+}
+
+different_speeds_get()
+{
+	local dev1=$1; shift
+	local dev2=$1; shift
+	local with_mode=$1; shift
+	local adver=$1; shift
+
+	local -a speeds_arr
+
+	speeds_arr=($(common_speeds_get $dev1 $dev2 $with_mode $adver))
+	if [[ ${#speeds_arr[@]} < 2 ]]; then
+		check_err 1 "cannot check different speeds. There are not enough speeds"
+	fi
+
+	echo ${speeds_arr[0]} ${speeds_arr[1]}
+}
diff --git a/tools/testing/selftests/drivers/net/hw/ethtool_mm.sh b/tools/testing/selftests/drivers/net/hw/ethtool_mm.sh
new file mode 100755
index 000000000000..c301e735c8ab
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ethtool_mm.sh
@@ -0,0 +1,341 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	manual_with_verification_h1_to_h2
+	manual_with_verification_h2_to_h1
+	manual_without_verification_h1_to_h2
+	manual_without_verification_h2_to_h1
+	manual_failed_verification_h1_to_h2
+	manual_failed_verification_h2_to_h1
+	lldp
+"
+
+NUM_NETIFS=2
+REQUIRE_MZ=no
+PREEMPTIBLE_PRIO=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+traffic_test()
+{
+	local if=$1; shift
+	local src=$1; shift
+	local num_pkts=10000
+	local before=
+	local after=
+	local delta=
+
+	if [ ${has_pmac_stats[$if]} = false ]; then
+		src="aggregate"
+	fi
+
+	before=$(ethtool_std_stats_get $if "eth-mac" "FramesTransmittedOK" $src)
+
+	$MZ $if -q -c $num_pkts -p 64 -b bcast -t ip -R $PREEMPTIBLE_PRIO
+
+	after=$(ethtool_std_stats_get $if "eth-mac" "FramesTransmittedOK" $src)
+
+	delta=$((after - before))
+
+	# Allow an extra 1% tolerance for random packets sent by the stack
+	[ $delta -ge $num_pkts ] && [ $delta -le $((num_pkts + 100)) ]
+}
+
+manual_with_verification()
+{
+	local tx=$1; shift
+	local rx=$1; shift
+
+	RET=0
+
+	# It isn't completely clear from IEEE 802.3-2018 Figure 99-5: Transmit
+	# Processing state diagram whether the "send_r" variable (send response
+	# to verification frame) should be taken into consideration while the
+	# MAC Merge TX direction is disabled. That being said, at least the
+	# NXP ENETC does not, and requires tx-enabled on in order to respond to
+	# the link partner's verification frames.
+	ethtool --set-mm $rx tx-enabled on
+	ethtool --set-mm $tx verify-enabled on tx-enabled on
+
+	# Wait for verification to finish
+	sleep 1
+
+	ethtool --json --show-mm $tx | jq -r '.[]."verify-status"' | \
+		grep -q 'SUCCEEDED'
+	check_err "$?" "Verification did not succeed"
+
+	ethtool --json --show-mm $tx | jq -r '.[]."tx-active"' | grep -q 'true'
+	check_err "$?" "pMAC TX is not active"
+
+	traffic_test $tx "pmac"
+	check_err "$?" "Traffic did not get sent through $tx's pMAC"
+
+	ethtool --set-mm $tx verify-enabled off tx-enabled off
+	ethtool --set-mm $rx tx-enabled off
+
+	log_test "Manual configuration with verification: $tx to $rx"
+}
+
+manual_with_verification_h1_to_h2()
+{
+	manual_with_verification $h1 $h2
+}
+
+manual_with_verification_h2_to_h1()
+{
+	manual_with_verification $h2 $h1
+}
+
+manual_without_verification()
+{
+	local tx=$1; shift
+	local rx=$1; shift
+
+	RET=0
+
+	ethtool --set-mm $tx verify-enabled off tx-enabled on
+
+	ethtool --json --show-mm $tx | jq -r '.[]."verify-status"' | \
+		grep -q 'DISABLED'
+	check_err "$?" "Verification is not disabled"
+
+	ethtool --json --show-mm $tx | jq -r '.[]."tx-active"' | grep -q 'true'
+	check_err "$?" "pMAC TX is not active"
+
+	traffic_test $tx "pmac"
+	check_err "$?" "Traffic did not get sent through $tx's pMAC"
+
+	ethtool --set-mm $tx verify-enabled off tx-enabled off
+
+	log_test "Manual configuration without verification: $tx to $rx"
+}
+
+manual_without_verification_h1_to_h2()
+{
+	manual_without_verification $h1 $h2
+}
+
+manual_without_verification_h2_to_h1()
+{
+	manual_without_verification $h2 $h1
+}
+
+manual_failed_verification()
+{
+	local tx=$1; shift
+	local rx=$1; shift
+
+	RET=0
+
+	ethtool --set-mm $rx pmac-enabled off
+	ethtool --set-mm $tx verify-enabled on tx-enabled on
+
+	# Wait for verification to time out
+	sleep 1
+
+	ethtool --json --show-mm $tx | jq -r '.[]."verify-status"' | \
+		grep -q 'SUCCEEDED'
+	check_fail "$?" "Verification succeeded when it shouldn't have"
+
+	ethtool --json --show-mm $tx | jq -r '.[]."tx-active"' | grep -q 'true'
+	check_fail "$?" "pMAC TX is active when it shouldn't have"
+
+	traffic_test $tx "emac"
+	check_err "$?" "Traffic did not get sent through $tx's eMAC"
+
+	ethtool --set-mm $tx verify-enabled off tx-enabled off
+	ethtool --set-mm $rx pmac-enabled on
+
+	log_test "Manual configuration with failed verification: $tx to $rx"
+}
+
+manual_failed_verification_h1_to_h2()
+{
+	manual_failed_verification $h1 $h2
+}
+
+manual_failed_verification_h2_to_h1()
+{
+	manual_failed_verification $h2 $h1
+}
+
+smallest_supported_add_frag_size()
+{
+	local iface=$1
+	local rx_min_frag_size=
+
+	rx_min_frag_size=$(ethtool --json --show-mm $iface | \
+		jq '.[]."rx-min-frag-size"')
+
+	if [ $rx_min_frag_size -le 60 ]; then
+		echo 0
+	elif [ $rx_min_frag_size -le 124 ]; then
+		echo 1
+	elif [ $rx_min_frag_size -le 188 ]; then
+		echo 2
+	elif [ $rx_min_frag_size -le 252 ]; then
+		echo 3
+	else
+		echo "$iface: RX min frag size $rx_min_frag_size cannot be advertised over LLDP"
+		exit 1
+	fi
+}
+
+expected_add_frag_size()
+{
+	local iface=$1
+	local requested=$2
+	local min=$(smallest_supported_add_frag_size $iface)
+
+	[ $requested -le $min ] && echo $min || echo $requested
+}
+
+lldp_change_add_frag_size()
+{
+	local add_frag_size=$1
+	local pattern=
+
+	lldptool -T -i $h1 -V addEthCaps addFragSize=$add_frag_size >/dev/null
+	# Wait for TLVs to be received
+	sleep 2
+	pattern=$(printf "Additional fragment size: %d" \
+			 $(expected_add_frag_size $h1 $add_frag_size))
+	lldptool -i $h2 -t -n -V addEthCaps | grep -q "$pattern"
+}
+
+lldp()
+{
+	RET=0
+
+	systemctl start lldpad
+
+	# Configure the interfaces to receive and transmit LLDPDUs
+	lldptool -L -i $h1 adminStatus=rxtx >/dev/null
+	lldptool -L -i $h2 adminStatus=rxtx >/dev/null
+
+	# Enable the transmission of Additional Ethernet Capabilities TLV
+	lldptool -T -i $h1 -V addEthCaps enableTx=yes >/dev/null
+	lldptool -T -i $h2 -V addEthCaps enableTx=yes >/dev/null
+
+	# Wait for TLVs to be received
+	sleep 2
+
+	lldptool -i $h1 -t -n -V addEthCaps | \
+		grep -q "Preemption capability active"
+	check_err "$?" "$h1 pMAC TX is not active"
+
+	lldptool -i $h2 -t -n -V addEthCaps | \
+		grep -q "Preemption capability active"
+	check_err "$?" "$h2 pMAC TX is not active"
+
+	lldp_change_add_frag_size 3
+	check_err "$?" "addFragSize 3"
+
+	lldp_change_add_frag_size 2
+	check_err "$?" "addFragSize 2"
+
+	lldp_change_add_frag_size 1
+	check_err "$?" "addFragSize 1"
+
+	lldp_change_add_frag_size 0
+	check_err "$?" "addFragSize 0"
+
+	traffic_test $h1 "pmac"
+	check_err "$?" "Traffic did not get sent through $h1's pMAC"
+
+	traffic_test $h2 "pmac"
+	check_err "$?" "Traffic did not get sent through $h2's pMAC"
+
+	systemctl stop lldpad
+
+	log_test "LLDP"
+}
+
+h1_create()
+{
+	ip link set dev $h1 up
+
+	tc qdisc add dev $h1 root mqprio num_tc 4 map 0 1 2 3 \
+		queues 1@0 1@1 1@2 1@3 \
+		fp P E E E \
+		hw 1
+
+	ethtool --set-mm $h1 pmac-enabled on tx-enabled off verify-enabled off
+}
+
+h2_create()
+{
+	ip link set dev $h2 up
+
+	ethtool --set-mm $h2 pmac-enabled on tx-enabled off verify-enabled off
+
+	tc qdisc add dev $h2 root mqprio num_tc 4 map 0 1 2 3 \
+		queues 1@0 1@1 1@2 1@3 \
+		fp P E E E \
+		hw 1
+}
+
+h1_destroy()
+{
+	ethtool --set-mm $h1 pmac-enabled off tx-enabled off verify-enabled off
+
+	tc qdisc del dev $h1 root
+
+	ip link set dev $h1 down
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 root
+
+	ethtool --set-mm $h2 pmac-enabled off tx-enabled off verify-enabled off
+
+	ip link set dev $h2 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+}
+
+check_ethtool_mm_support
+check_tc_fp_support
+require_command lldptool
+bail_on_lldpad "autoconfigure the MAC Merge layer" "configure it manually"
+
+for netif in ${NETIFS[@]}; do
+	ethtool --show-mm $netif 2>&1 &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: $netif does not support MAC Merge"
+		exit $ksft_skip
+	fi
+
+	if check_ethtool_pmac_std_stats_support $netif eth-mac; then
+		has_pmac_stats[$netif]=true
+	else
+		has_pmac_stats[$netif]=false
+		echo "$netif does not report pMAC statistics, falling back to aggregate"
+	fi
+done
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh b/tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh
new file mode 100755
index 000000000000..8f60c1685ad4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ethtool_rmon.sh
@@ -0,0 +1,145 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	rmon_rx_histogram
+	rmon_tx_histogram
+"
+
+NUM_NETIFS=2
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+ETH_FCS_LEN=4
+ETH_HLEN=$((6+6+2))
+
+declare -A netif_mtu
+
+ensure_mtu()
+{
+	local iface=$1; shift
+	local len=$1; shift
+	local current=$(ip -j link show dev $iface | jq -r '.[0].mtu')
+	local required=$((len - ETH_HLEN - ETH_FCS_LEN))
+
+	if [ $current -lt $required ]; then
+		ip link set dev $iface mtu $required || return 1
+	fi
+}
+
+bucket_test()
+{
+	local iface=$1; shift
+	local neigh=$1; shift
+	local set=$1; shift
+	local bucket=$1; shift
+	local len=$1; shift
+	local num_rx=10000
+	local num_tx=20000
+	local expected=
+	local before=
+	local after=
+	local delta=
+
+	# Mausezahn does not include FCS bytes in its length - but the
+	# histogram counters do
+	len=$((len - ETH_FCS_LEN))
+	len=$((len > 0 ? len : 0))
+
+	before=$(ethtool --json -S $iface --groups rmon | \
+		jq -r ".[0].rmon[\"${set}-pktsNtoM\"][$bucket].val")
+
+	# Send 10k one way and 20k in the other, to detect counters
+	# mapped to the wrong direction
+	$MZ $neigh -q -c $num_rx -p $len -a own -b bcast -d 10us
+	$MZ $iface -q -c $num_tx -p $len -a own -b bcast -d 10us
+
+	after=$(ethtool --json -S $iface --groups rmon | \
+		jq -r ".[0].rmon[\"${set}-pktsNtoM\"][$bucket].val")
+
+	delta=$((after - before))
+
+	expected=$([ $set = rx ] && echo $num_rx || echo $num_tx)
+
+	# Allow some extra tolerance for other packets sent by the stack
+	[ $delta -ge $expected ] && [ $delta -le $((expected + 100)) ]
+}
+
+rmon_histogram()
+{
+	local iface=$1; shift
+	local neigh=$1; shift
+	local set=$1; shift
+	local nbuckets=0
+	local step=
+
+	RET=0
+
+	while read -r -a bucket; do
+		step="$set-pkts${bucket[0]}to${bucket[1]} on $iface"
+
+		for if in $iface $neigh; do
+			if ! ensure_mtu $if ${bucket[0]}; then
+				log_test_xfail "$if does not support the required MTU for $step"
+				return
+			fi
+		done
+
+		if ! bucket_test $iface $neigh $set $nbuckets ${bucket[0]}; then
+			check_err 1 "$step failed"
+			return 1
+		fi
+		log_test "$step"
+		nbuckets=$((nbuckets + 1))
+	done < <(ethtool --json -S $iface --groups rmon | \
+		jq -r ".[0].rmon[\"${set}-pktsNtoM\"][]|[.low, .high]|@tsv" 2>/dev/null)
+
+	if [ $nbuckets -eq 0 ]; then
+		log_test_xfail "$iface does not support $set histogram counters"
+		return
+	fi
+}
+
+rmon_rx_histogram()
+{
+	rmon_histogram $h1 $h2 rx
+	rmon_histogram $h2 $h1 rx
+}
+
+rmon_tx_histogram()
+{
+	rmon_histogram $h1 $h2 tx
+	rmon_histogram $h2 $h1 tx
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	for iface in $h1 $h2; do
+		netif_mtu[$iface]=$(ip -j link show dev $iface | jq -r '.[0].mtu')
+		ip link set dev $iface up
+	done
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	for iface in $h2 $h1; do
+		ip link set dev $iface \
+			mtu ${netif_mtu[$iface]} \
+			down
+	done
+}
+
+check_ethtool_counter_group_support
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/hw_stats_l3.sh b/tools/testing/selftests/drivers/net/hw/hw_stats_l3.sh
new file mode 100755
index 000000000000..67fafefc80be
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/hw_stats_l3.sh
@@ -0,0 +1,334 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+                     +----------------------+
+# | H1                 |                     |                   H2 |
+# |                    |                     |                      |
+# |          $h1.200 + |                     | + $h2.200            |
+# |     192.0.2.1/28 | |                     | | 192.0.2.18/28      |
+# | 2001:db8:1::1/64 | |                     | | 2001:db8:2::1/64   |
+# |                  | |                     | |                    |
+# |              $h1 + |                     | + $h2                |
+# |                  | |                     | |                    |
+# +------------------|-+                     +-|--------------------+
+#                    |                         |
+# +------------------|-------------------------|--------------------+
+# | SW               |                         |                    |
+# |                  |                         |                    |
+# |             $rp1 +                         + $rp2               |
+# |                  |                         |                    |
+# |         $rp1.200 +                         + $rp2.200           |
+# |     192.0.2.2/28                             192.0.2.17/28      |
+# | 2001:db8:1::2/64                             2001:db8:2::2/64   |
+# |                                                                 |
+# +-----------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	test_stats_rx_ipv4
+	test_stats_tx_ipv4
+	test_stats_rx_ipv6
+	test_stats_tx_ipv6
+	respin_enablement
+	test_stats_rx_ipv4
+	test_stats_tx_ipv4
+	test_stats_rx_ipv6
+	test_stats_tx_ipv6
+	reapply_config
+	ping_ipv4
+	ping_ipv6
+	test_stats_rx_ipv4
+	test_stats_tx_ipv4
+	test_stats_rx_ipv6
+	test_stats_tx_ipv6
+	test_stats_report_rx
+	test_stats_report_tx
+	test_destroy_enabled
+	test_double_enable
+"
+NUM_NETIFS=4
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source "$lib_dir"/../../../net/forwarding/tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 200 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+	ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+	vlan_destroy $h1 200
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 200 v$h2 192.0.2.18/28 2001:db8:2::1/64
+	ip route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::2
+	ip route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
+	vlan_destroy $h2 200
+	simple_if_fini $h2
+}
+
+router_rp1_200_create()
+{
+	ip link add name $rp1.200 link $rp1 type vlan id 200
+	ip link set dev $rp1.200 addrgenmode eui64
+	ip link set dev $rp1.200 up
+	ip address add dev $rp1.200 192.0.2.2/28
+	ip address add dev $rp1.200 2001:db8:1::2/64
+	ip stats set dev $rp1.200 l3_stats on
+}
+
+router_rp1_200_destroy()
+{
+	ip stats set dev $rp1.200 l3_stats off
+	ip address del dev $rp1.200 2001:db8:1::2/64
+	ip address del dev $rp1.200 192.0.2.2/28
+	ip link del dev $rp1.200
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	router_rp1_200_create
+
+	ip link set dev $rp2 up
+	vlan_create $rp2 200 "" 192.0.2.17/28 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+	vlan_destroy $rp2 200
+	ip link set dev $rp2 down
+
+	router_rp1_200_destroy
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1mac=$(mac_get $rp1)
+	rp2mac=$(mac_get $rp2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1.200 192.0.2.18 " IPv4"
+}
+
+ping_ipv6()
+{
+	ping_test $h1.200 2001:db8:2::1 " IPv6"
+}
+
+send_packets_rx_ipv4()
+{
+	# Send 21 packets instead of 20, because the first one might trap and go
+	# through the SW datapath, which might not bump the HW counter.
+	$MZ $h1.200 -c 21 -d 20msec -p 100 \
+	    -a own -b $rp1mac -A 192.0.2.1 -B 192.0.2.18 \
+	    -q -t udp sp=54321,dp=12345
+}
+
+send_packets_rx_ipv6()
+{
+	$MZ $h1.200 -6 -c 21 -d 20msec -p 100 \
+	    -a own -b $rp1mac -A 2001:db8:1::1 -B 2001:db8:2::1 \
+	    -q -t udp sp=54321,dp=12345
+}
+
+send_packets_tx_ipv4()
+{
+	$MZ $h2.200 -c 21 -d 20msec -p 100 \
+	    -a own -b $rp2mac -A 192.0.2.18 -B 192.0.2.1 \
+	    -q -t udp sp=54321,dp=12345
+}
+
+send_packets_tx_ipv6()
+{
+	$MZ $h2.200 -6 -c 21 -d 20msec -p 100 \
+	    -a own -b $rp2mac -A 2001:db8:2::1 -B 2001:db8:1::1 \
+	    -q -t udp sp=54321,dp=12345
+}
+
+___test_stats()
+{
+	local dir=$1; shift
+	local prot=$1; shift
+
+	local a
+	local b
+
+	a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
+	send_packets_${dir}_${prot}
+	"$@"
+	b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
+		       hw_stats_get l3_stats $rp1.200 ${dir} packets)
+	check_err $? "Traffic not reflected in the counter: $a -> $b"
+}
+
+__test_stats()
+{
+	local dir=$1; shift
+	local prot=$1; shift
+
+	RET=0
+	___test_stats "$dir" "$prot"
+	log_test "Test $dir packets: $prot"
+}
+
+test_stats_rx_ipv4()
+{
+	__test_stats rx ipv4
+}
+
+test_stats_tx_ipv4()
+{
+	__test_stats tx ipv4
+}
+
+test_stats_rx_ipv6()
+{
+	__test_stats rx ipv6
+}
+
+test_stats_tx_ipv6()
+{
+	__test_stats tx ipv6
+}
+
+# Make sure everything works well even after stats have been disabled and
+# reenabled on the same device without touching the L3 configuration.
+respin_enablement()
+{
+	log_info "Turning stats off and on again"
+	ip stats set dev $rp1.200 l3_stats off
+	ip stats set dev $rp1.200 l3_stats on
+}
+
+# For the initial run, l3_stats is enabled on a completely set up netdevice. Now
+# do it the other way around: enabling the L3 stats on an L2 netdevice, and only
+# then apply the L3 configuration.
+reapply_config()
+{
+	log_info "Reapplying configuration"
+
+	router_rp1_200_destroy
+
+	ip link add name $rp1.200 link $rp1 type vlan id 200
+	ip link set dev $rp1.200 addrgenmode none
+	ip stats set dev $rp1.200 l3_stats on
+	ip link set dev $rp1.200 addrgenmode eui64
+	ip link set dev $rp1.200 up
+	ip address add dev $rp1.200 192.0.2.2/28
+	ip address add dev $rp1.200 2001:db8:1::2/64
+}
+
+__test_stats_report()
+{
+	local dir=$1; shift
+	local prot=$1; shift
+
+	local a
+	local b
+
+	RET=0
+
+	a=$(hw_stats_get l3_stats $rp1.200 ${dir} packets)
+	send_packets_${dir}_${prot}
+	ip address flush dev $rp1.200
+	b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
+		       hw_stats_get l3_stats $rp1.200 ${dir} packets)
+	check_err $? "Traffic not reflected in the counter: $a -> $b"
+	log_test "Test ${dir} packets: stats pushed on loss of L3"
+
+	ip stats set dev $rp1.200 l3_stats off
+	ip link del dev $rp1.200
+	router_rp1_200_create
+}
+
+test_stats_report_rx()
+{
+	__test_stats_report rx ipv4
+}
+
+test_stats_report_tx()
+{
+	__test_stats_report tx ipv4
+}
+
+test_destroy_enabled()
+{
+	RET=0
+
+	ip link del dev $rp1.200
+	router_rp1_200_create
+
+	log_test "Destroy l3_stats-enabled netdev"
+}
+
+test_double_enable()
+{
+	RET=0
+	___test_stats rx ipv4 \
+		ip stats set dev $rp1.200 l3_stats on
+	log_test "Test stat retention across a spurious enablement"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+used=$(ip -j stats show dev $rp1.200 group offload subgroup hw_stats_info |
+	   jq '.[].info.l3_stats.used')
+[[ $used = true ]]
+check_err $? "hw_stats_info.used=$used"
+log_test "l3_stats offloaded"
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/hw_stats_l3_gre.sh b/tools/testing/selftests/drivers/net/hw/hw_stats_l3_gre.sh
new file mode 100755
index 000000000000..a94d92e1abce
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/hw_stats_l3_gre.sh
@@ -0,0 +1,111 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test L3 stats on IP-in-IP GRE tunnel without key.
+
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="
+	ping_ipv4
+	test_stats_rx
+	test_stats_tx
+"
+NUM_NETIFS=6
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+source "$lib_dir"/../../../net/forwarding/ipip_lib.sh
+source "$lib_dir"/../../../net/forwarding/tc_common.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	ol1mac=$(mac_get $ol1)
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create gre $ol1 $ul1
+	sw2_flat_create gre $ol2 $ul2
+	ip stats set dev g1a l3_stats on
+	ip stats set dev g2a l3_stats on
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip stats set dev g1a l3_stats off
+	ip stats set dev g2a l3_stats off
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+	forwarding_restore
+}
+
+ping_ipv4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre flat"
+}
+
+send_packets_ipv4()
+{
+	# Send 21 packets instead of 20, because the first one might trap and go
+	# through the SW datapath, which might not bump the HW counter.
+	$MZ $h1 -c 21 -d 20msec -p 100 \
+	    -a own -b $ol1mac -A 192.0.2.1 -B 192.0.2.18 \
+	    -q -t udp sp=54321,dp=12345
+}
+
+test_stats()
+{
+	local dev=$1; shift
+	local dir=$1; shift
+
+	local a
+	local b
+
+	RET=0
+
+	a=$(hw_stats_get l3_stats $dev $dir packets)
+	send_packets_ipv4
+	b=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $a + 20" \
+		     hw_stats_get l3_stats $dev $dir packets)
+	check_err $? "Traffic not reflected in the counter: $a -> $b"
+
+	log_test "Test $dir packets: $prot"
+}
+
+test_stats_tx()
+{
+	test_stats g1a tx
+}
+
+test_stats_rx()
+{
+	test_stats g2a rx
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/iou-zcrx.c b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c
new file mode 100644
index 000000000000..62456df947bc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/iou-zcrx.c
@@ -0,0 +1,464 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <arpa/inet.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+
+#include <liburing.h>
+
+static long page_size;
+#define AREA_SIZE (8192 * page_size)
+#define SEND_SIZE (512 * 4096)
+#define min(a, b) \
+	({ \
+		typeof(a) _a = (a); \
+		typeof(b) _b = (b); \
+		_a < _b ? _a : _b; \
+	})
+#define min_t(t, a, b) \
+	({ \
+		t _ta = (a); \
+		t _tb = (b); \
+		min(_ta, _tb); \
+	})
+
+#define ALIGN_UP(v, align) (((v) + (align) - 1) & ~((align) - 1))
+
+static int cfg_server;
+static int cfg_client;
+static int cfg_port = 8000;
+static int cfg_payload_len;
+static const char *cfg_ifname;
+static int cfg_queue_id = -1;
+static bool cfg_oneshot;
+static int cfg_oneshot_recvs;
+static int cfg_send_size = SEND_SIZE;
+static struct sockaddr_in6 cfg_addr;
+
+static char *payload;
+static void *area_ptr;
+static void *ring_ptr;
+static size_t ring_size;
+static struct io_uring_zcrx_rq rq_ring;
+static unsigned long area_token;
+static int connfd;
+static bool stop;
+static size_t received;
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static int parse_address(const char *str, int port, struct sockaddr_in6 *sin6)
+{
+	int ret;
+
+	sin6->sin6_family = AF_INET6;
+	sin6->sin6_port = htons(port);
+
+	ret = inet_pton(sin6->sin6_family, str, &sin6->sin6_addr);
+	if (ret != 1) {
+		/* fallback to plain IPv4 */
+		ret = inet_pton(AF_INET, str, &sin6->sin6_addr.s6_addr32[3]);
+		if (ret != 1)
+			return -1;
+
+		/* add ::ffff prefix */
+		sin6->sin6_addr.s6_addr32[0] = 0;
+		sin6->sin6_addr.s6_addr32[1] = 0;
+		sin6->sin6_addr.s6_addr16[4] = 0;
+		sin6->sin6_addr.s6_addr16[5] = 0xffff;
+	}
+
+	return 0;
+}
+
+static inline size_t get_refill_ring_size(unsigned int rq_entries)
+{
+	size_t size;
+
+	ring_size = rq_entries * sizeof(struct io_uring_zcrx_rqe);
+	/* add space for the header (head/tail/etc.) */
+	ring_size += page_size;
+	return ALIGN_UP(ring_size, page_size);
+}
+
+static void setup_zcrx(struct io_uring *ring)
+{
+	unsigned int ifindex;
+	unsigned int rq_entries = 4096;
+	int ret;
+
+	ifindex = if_nametoindex(cfg_ifname);
+	if (!ifindex)
+		error(1, 0, "bad interface name: %s", cfg_ifname);
+
+	area_ptr = mmap(NULL,
+			AREA_SIZE,
+			PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_PRIVATE,
+			0,
+			0);
+	if (area_ptr == MAP_FAILED)
+		error(1, 0, "mmap(): zero copy area");
+
+	ring_size = get_refill_ring_size(rq_entries);
+	ring_ptr = mmap(NULL,
+			ring_size,
+			PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_PRIVATE,
+			0,
+			0);
+
+	struct io_uring_region_desc region_reg = {
+		.size = ring_size,
+		.user_addr = (__u64)(unsigned long)ring_ptr,
+		.flags = IORING_MEM_REGION_TYPE_USER,
+	};
+
+	struct io_uring_zcrx_area_reg area_reg = {
+		.addr = (__u64)(unsigned long)area_ptr,
+		.len = AREA_SIZE,
+		.flags = 0,
+	};
+
+	struct io_uring_zcrx_ifq_reg reg = {
+		.if_idx = ifindex,
+		.if_rxq = cfg_queue_id,
+		.rq_entries = rq_entries,
+		.area_ptr = (__u64)(unsigned long)&area_reg,
+		.region_ptr = (__u64)(unsigned long)&region_reg,
+	};
+
+	ret = io_uring_register_ifq(ring, &reg);
+	if (ret)
+		error(1, 0, "io_uring_register_ifq(): %d", ret);
+
+	rq_ring.khead = (unsigned int *)((char *)ring_ptr + reg.offsets.head);
+	rq_ring.ktail = (unsigned int *)((char *)ring_ptr + reg.offsets.tail);
+	rq_ring.rqes = (struct io_uring_zcrx_rqe *)((char *)ring_ptr + reg.offsets.rqes);
+	rq_ring.rq_tail = 0;
+	rq_ring.ring_entries = reg.rq_entries;
+
+	area_token = area_reg.rq_area_token;
+}
+
+static void add_accept(struct io_uring *ring, int sockfd)
+{
+	struct io_uring_sqe *sqe;
+
+	sqe = io_uring_get_sqe(ring);
+
+	io_uring_prep_accept(sqe, sockfd, NULL, NULL, 0);
+	sqe->user_data = 1;
+}
+
+static void add_recvzc(struct io_uring *ring, int sockfd)
+{
+	struct io_uring_sqe *sqe;
+
+	sqe = io_uring_get_sqe(ring);
+
+	io_uring_prep_rw(IORING_OP_RECV_ZC, sqe, sockfd, NULL, 0, 0);
+	sqe->ioprio |= IORING_RECV_MULTISHOT;
+	sqe->user_data = 2;
+}
+
+static void add_recvzc_oneshot(struct io_uring *ring, int sockfd, size_t len)
+{
+	struct io_uring_sqe *sqe;
+
+	sqe = io_uring_get_sqe(ring);
+
+	io_uring_prep_rw(IORING_OP_RECV_ZC, sqe, sockfd, NULL, len, 0);
+	sqe->ioprio |= IORING_RECV_MULTISHOT;
+	sqe->user_data = 2;
+}
+
+static void process_accept(struct io_uring *ring, struct io_uring_cqe *cqe)
+{
+	if (cqe->res < 0)
+		error(1, 0, "accept()");
+	if (connfd)
+		error(1, 0, "Unexpected second connection");
+
+	connfd = cqe->res;
+	if (cfg_oneshot)
+		add_recvzc_oneshot(ring, connfd, page_size);
+	else
+		add_recvzc(ring, connfd);
+}
+
+static void process_recvzc(struct io_uring *ring, struct io_uring_cqe *cqe)
+{
+	unsigned rq_mask = rq_ring.ring_entries - 1;
+	struct io_uring_zcrx_cqe *rcqe;
+	struct io_uring_zcrx_rqe *rqe;
+	struct io_uring_sqe *sqe;
+	uint64_t mask;
+	char *data;
+	ssize_t n;
+	int i;
+
+	if (cqe->res == 0 && cqe->flags == 0 && cfg_oneshot_recvs == 0) {
+		stop = true;
+		return;
+	}
+
+	if (cqe->res < 0)
+		error(1, 0, "recvzc(): %d", cqe->res);
+
+	if (cfg_oneshot) {
+		if (cqe->res == 0 && cqe->flags == 0 && cfg_oneshot_recvs) {
+			add_recvzc_oneshot(ring, connfd, page_size);
+			cfg_oneshot_recvs--;
+		}
+	} else if (!(cqe->flags & IORING_CQE_F_MORE)) {
+		add_recvzc(ring, connfd);
+	}
+
+	rcqe = (struct io_uring_zcrx_cqe *)(cqe + 1);
+
+	n = cqe->res;
+	mask = (1ULL << IORING_ZCRX_AREA_SHIFT) - 1;
+	data = (char *)area_ptr + (rcqe->off & mask);
+
+	for (i = 0; i < n; i++) {
+		if (*(data + i) != payload[(received + i)])
+			error(1, 0, "payload mismatch at %d", i);
+	}
+	received += n;
+
+	rqe = &rq_ring.rqes[(rq_ring.rq_tail & rq_mask)];
+	rqe->off = (rcqe->off & ~IORING_ZCRX_AREA_MASK) | area_token;
+	rqe->len = cqe->res;
+	io_uring_smp_store_release(rq_ring.ktail, ++rq_ring.rq_tail);
+}
+
+static void server_loop(struct io_uring *ring)
+{
+	struct io_uring_cqe *cqe;
+	unsigned int count = 0;
+	unsigned int head;
+	int i, ret;
+
+	io_uring_submit_and_wait(ring, 1);
+
+	io_uring_for_each_cqe(ring, head, cqe) {
+		if (cqe->user_data == 1)
+			process_accept(ring, cqe);
+		else if (cqe->user_data == 2)
+			process_recvzc(ring, cqe);
+		else
+			error(1, 0, "unknown cqe");
+		count++;
+	}
+	io_uring_cq_advance(ring, count);
+}
+
+static void run_server(void)
+{
+	unsigned int flags = 0;
+	struct io_uring ring;
+	int fd, enable, ret;
+	uint64_t tstop;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd == -1)
+		error(1, 0, "socket()");
+
+	enable = 1;
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(int));
+	if (ret < 0)
+		error(1, 0, "setsockopt(SO_REUSEADDR)");
+
+	ret = bind(fd, (struct sockaddr *)&cfg_addr, sizeof(cfg_addr));
+	if (ret < 0)
+		error(1, 0, "bind()");
+
+	if (listen(fd, 1024) < 0)
+		error(1, 0, "listen()");
+
+	flags |= IORING_SETUP_COOP_TASKRUN;
+	flags |= IORING_SETUP_SINGLE_ISSUER;
+	flags |= IORING_SETUP_DEFER_TASKRUN;
+	flags |= IORING_SETUP_SUBMIT_ALL;
+	flags |= IORING_SETUP_CQE32;
+
+	io_uring_queue_init(512, &ring, flags);
+
+	setup_zcrx(&ring);
+
+	add_accept(&ring, fd);
+
+	tstop = gettimeofday_ms() + 5000;
+	while (!stop && gettimeofday_ms() < tstop)
+		server_loop(&ring);
+
+	if (!stop)
+		error(1, 0, "test failed\n");
+}
+
+static void run_client(void)
+{
+	ssize_t to_send = cfg_send_size;
+	ssize_t sent = 0;
+	ssize_t chunk, res;
+	int fd;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd == -1)
+		error(1, 0, "socket()");
+
+	if (connect(fd, (struct sockaddr *)&cfg_addr, sizeof(cfg_addr)))
+		error(1, 0, "connect()");
+
+	while (to_send) {
+		void *src = &payload[sent];
+
+		chunk = min_t(ssize_t, cfg_payload_len, to_send);
+		res = send(fd, src, chunk, 0);
+		if (res < 0)
+			error(1, 0, "send(): %zd", sent);
+		sent += res;
+		to_send -= res;
+	}
+
+	close(fd);
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s (-4|-6) (-s|-c) -h<server_ip> -p<port> "
+		    "-l<payload_size> -i<ifname> -q<rxq_id>", filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	const int max_payload_len = SEND_SIZE -
+				    sizeof(struct ipv6hdr) -
+				    sizeof(struct tcphdr) -
+				    40 /* max tcp options */;
+	struct sockaddr_in6 *addr6 = (void *) &cfg_addr;
+	char *addr = NULL;
+	int ret;
+	int c;
+
+	if (argc <= 1)
+		usage(argv[0]);
+	cfg_payload_len = max_payload_len;
+
+	while ((c = getopt(argc, argv, "sch:p:l:i:q:o:z:")) != -1) {
+		switch (c) {
+		case 's':
+			if (cfg_client)
+				error(1, 0, "Pass one of -s or -c");
+			cfg_server = 1;
+			break;
+		case 'c':
+			if (cfg_server)
+				error(1, 0, "Pass one of -s or -c");
+			cfg_client = 1;
+			break;
+		case 'h':
+			addr = optarg;
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 'l':
+			cfg_payload_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'i':
+			cfg_ifname = optarg;
+			break;
+		case 'q':
+			cfg_queue_id = strtoul(optarg, NULL, 0);
+			break;
+		case 'o': {
+			cfg_oneshot = true;
+			cfg_oneshot_recvs = strtoul(optarg, NULL, 0);
+			break;
+		}
+		case 'z':
+			cfg_send_size = strtoul(optarg, NULL, 0);
+			break;
+		}
+	}
+
+	if (cfg_server && addr)
+		error(1, 0, "Receiver cannot have -h specified");
+
+	memset(addr6, 0, sizeof(*addr6));
+	addr6->sin6_family = AF_INET6;
+	addr6->sin6_port = htons(cfg_port);
+	addr6->sin6_addr = in6addr_any;
+	if (addr) {
+		ret = parse_address(addr, cfg_port, addr6);
+		if (ret)
+			error(1, 0, "receiver address parse error: %s", addr);
+	}
+
+	if (cfg_payload_len > max_payload_len)
+		error(1, 0, "-l: payload exceeds max (%d)", max_payload_len);
+}
+
+int main(int argc, char **argv)
+{
+	const char *cfg_test = argv[argc - 1];
+	int i;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	if (page_size < 0)
+		return 1;
+
+	if (posix_memalign((void **)&payload, page_size, SEND_SIZE))
+		return 1;
+
+	parse_opts(argc, argv);
+
+	for (i = 0; i < SEND_SIZE; i++)
+		payload[i] = 'a' + (i % 26);
+
+	if (cfg_server)
+		run_server();
+	else if (cfg_client)
+		run_client();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/drivers/net/hw/iou-zcrx.py b/tools/testing/selftests/drivers/net/hw/iou-zcrx.py
new file mode 100755
index 000000000000..712c806508b5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/iou-zcrx.py
@@ -0,0 +1,145 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import re
+from os import path
+from lib.py import ksft_run, ksft_exit, KsftSkipEx
+from lib.py import NetDrvEpEnv
+from lib.py import bkg, cmd, defer, ethtool, rand_port, wait_port_listen
+
+
+def _get_current_settings(cfg):
+    output = ethtool(f"-g {cfg.ifname}", json=True)[0]
+    return (output['rx'], output['hds-thresh'])
+
+
+def _get_combined_channels(cfg):
+    output = ethtool(f"-l {cfg.ifname}").stdout
+    values = re.findall(r'Combined:\s+(\d+)', output)
+    return int(values[1])
+
+
+def _create_rss_ctx(cfg, chan):
+    output = ethtool(f"-X {cfg.ifname} context new start {chan} equal 1").stdout
+    values = re.search(r'New RSS context is (\d+)', output).group(1)
+    ctx_id = int(values)
+    return (ctx_id, defer(ethtool, f"-X {cfg.ifname} delete context {ctx_id}"))
+
+
+def _set_flow_rule(cfg, port, chan):
+    output = ethtool(f"-N {cfg.ifname} flow-type tcp6 dst-port {port} action {chan}").stdout
+    values = re.search(r'ID (\d+)', output).group(1)
+    return int(values)
+
+
+def _set_flow_rule_rss(cfg, port, ctx_id):
+    output = ethtool(f"-N {cfg.ifname} flow-type tcp6 dst-port {port} context {ctx_id}").stdout
+    values = re.search(r'ID (\d+)', output).group(1)
+    return int(values)
+
+
+def test_zcrx(cfg) -> None:
+    cfg.require_ipver('6')
+
+    combined_chans = _get_combined_channels(cfg)
+    if combined_chans < 2:
+        raise KsftSkipEx('at least 2 combined channels required')
+    (rx_ring, hds_thresh) = _get_current_settings(cfg)
+    port = rand_port()
+
+    ethtool(f"-G {cfg.ifname} tcp-data-split on")
+    defer(ethtool, f"-G {cfg.ifname} tcp-data-split auto")
+
+    ethtool(f"-G {cfg.ifname} hds-thresh 0")
+    defer(ethtool, f"-G {cfg.ifname} hds-thresh {hds_thresh}")
+
+    ethtool(f"-G {cfg.ifname} rx 64")
+    defer(ethtool, f"-G {cfg.ifname} rx {rx_ring}")
+
+    ethtool(f"-X {cfg.ifname} equal {combined_chans - 1}")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    flow_rule_id = _set_flow_rule(cfg, port, combined_chans - 1)
+    defer(ethtool, f"-N {cfg.ifname} delete {flow_rule_id}")
+
+    rx_cmd = f"{cfg.bin_local} -s -p {port} -i {cfg.ifname} -q {combined_chans - 1}"
+    tx_cmd = f"{cfg.bin_remote} -c -h {cfg.addr_v['6']} -p {port} -l 12840"
+    with bkg(rx_cmd, exit_wait=True):
+        wait_port_listen(port, proto="tcp")
+        cmd(tx_cmd, host=cfg.remote)
+
+
+def test_zcrx_oneshot(cfg) -> None:
+    cfg.require_ipver('6')
+
+    combined_chans = _get_combined_channels(cfg)
+    if combined_chans < 2:
+        raise KsftSkipEx('at least 2 combined channels required')
+    (rx_ring, hds_thresh) = _get_current_settings(cfg)
+    port = rand_port()
+
+    ethtool(f"-G {cfg.ifname} tcp-data-split on")
+    defer(ethtool, f"-G {cfg.ifname} tcp-data-split auto")
+
+    ethtool(f"-G {cfg.ifname} hds-thresh 0")
+    defer(ethtool, f"-G {cfg.ifname} hds-thresh {hds_thresh}")
+
+    ethtool(f"-G {cfg.ifname} rx 64")
+    defer(ethtool, f"-G {cfg.ifname} rx {rx_ring}")
+
+    ethtool(f"-X {cfg.ifname} equal {combined_chans - 1}")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    flow_rule_id = _set_flow_rule(cfg, port, combined_chans - 1)
+    defer(ethtool, f"-N {cfg.ifname} delete {flow_rule_id}")
+
+    rx_cmd = f"{cfg.bin_local} -s -p {port} -i {cfg.ifname} -q {combined_chans - 1} -o 4"
+    tx_cmd = f"{cfg.bin_remote} -c -h {cfg.addr_v['6']} -p {port} -l 4096 -z 16384"
+    with bkg(rx_cmd, exit_wait=True):
+        wait_port_listen(port, proto="tcp")
+        cmd(tx_cmd, host=cfg.remote)
+
+
+def test_zcrx_rss(cfg) -> None:
+    cfg.require_ipver('6')
+
+    combined_chans = _get_combined_channels(cfg)
+    if combined_chans < 2:
+        raise KsftSkipEx('at least 2 combined channels required')
+    (rx_ring, hds_thresh) = _get_current_settings(cfg)
+    port = rand_port()
+
+    ethtool(f"-G {cfg.ifname} tcp-data-split on")
+    defer(ethtool, f"-G {cfg.ifname} tcp-data-split auto")
+
+    ethtool(f"-G {cfg.ifname} hds-thresh 0")
+    defer(ethtool, f"-G {cfg.ifname} hds-thresh {hds_thresh}")
+
+    ethtool(f"-G {cfg.ifname} rx 64")
+    defer(ethtool, f"-G {cfg.ifname} rx {rx_ring}")
+
+    ethtool(f"-X {cfg.ifname} equal {combined_chans - 1}")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    (ctx_id, delete_ctx) = _create_rss_ctx(cfg, combined_chans - 1)
+    flow_rule_id = _set_flow_rule_rss(cfg, port, ctx_id)
+    defer(ethtool, f"-N {cfg.ifname} delete {flow_rule_id}")
+
+    rx_cmd = f"{cfg.bin_local} -s -p {port} -i {cfg.ifname} -q {combined_chans - 1}"
+    tx_cmd = f"{cfg.bin_remote} -c -h {cfg.addr_v['6']} -p {port} -l 12840"
+    with bkg(rx_cmd, exit_wait=True):
+        wait_port_listen(port, proto="tcp")
+        cmd(tx_cmd, host=cfg.remote)
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.bin_local = path.abspath(path.dirname(__file__) + "/../../../drivers/net/hw/iou-zcrx")
+        cfg.bin_remote = cfg.remote.deploy(cfg.bin_local)
+
+        ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/irq.py b/tools/testing/selftests/drivers/net/hw/irq.py
new file mode 100755
index 000000000000..0699d6a8b4e2
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/irq.py
@@ -0,0 +1,99 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_ge, ksft_eq
+from lib.py import KsftSkipEx
+from lib.py import ksft_disruptive
+from lib.py import EthtoolFamily, NetdevFamily
+from lib.py import NetDrvEnv
+from lib.py import cmd, ip, defer
+
+
+def read_affinity(irq) -> str:
+    with open(f'/proc/irq/{irq}/smp_affinity', 'r') as fp:
+        return fp.read().lstrip("0,").strip()
+
+
+def write_affinity(irq, what) -> str:
+    if what != read_affinity(irq):
+        with open(f'/proc/irq/{irq}/smp_affinity', 'w') as fp:
+            fp.write(what)
+
+
+def check_irqs_reported(cfg) -> None:
+    """ Check that device reports IRQs for NAPI instances """
+    napis = cfg.netnl.napi_get({"ifindex": cfg.ifindex}, dump=True)
+    irqs = sum(['irq' in x for x in napis])
+
+    ksft_ge(irqs, 1)
+    ksft_eq(irqs, len(napis))
+
+
+def _check_reconfig(cfg, reconfig_cb) -> None:
+    napis = cfg.netnl.napi_get({"ifindex": cfg.ifindex}, dump=True)
+    for n in reversed(napis):
+        if 'irq' in n:
+            break
+    else:
+        raise KsftSkipEx(f"Device has no NAPI with IRQ attribute (#napis: {len(napis)}")
+
+    old = read_affinity(n['irq'])
+    # pick an affinity that's not the current one
+    new = "3" if old != "3" else "5"
+    write_affinity(n['irq'], new)
+    defer(write_affinity, n['irq'], old)
+
+    reconfig_cb(cfg)
+
+    ksft_eq(read_affinity(n['irq']), new, comment="IRQ affinity changed after reconfig")
+
+
+def check_reconfig_queues(cfg) -> None:
+    def reconfig(cfg) -> None:
+        channels = cfg.ethnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+        if channels['combined-count'] == 0:
+            rx_type = 'rx'
+        else:
+            rx_type = 'combined'
+        cur_queue_cnt = channels[f'{rx_type}-count']
+        max_queue_cnt = channels[f'{rx_type}-max']
+
+        cmd(f"ethtool -L {cfg.ifname} {rx_type} 1")
+        cmd(f"ethtool -L {cfg.ifname} {rx_type} {max_queue_cnt}")
+        cmd(f"ethtool -L {cfg.ifname} {rx_type} {cur_queue_cnt}")
+
+    _check_reconfig(cfg, reconfig)
+
+
+def check_reconfig_xdp(cfg) -> None:
+    def reconfig(cfg) -> None:
+        ip(f"link set dev %s xdp obj %s sec xdp" %
+           (cfg.ifname, cfg.net_lib_dir / "xdp_dummy.bpf.o"))
+        ip(f"link set dev %s xdp off" % cfg.ifname)
+
+    _check_reconfig(cfg, reconfig)
+
+
+@ksft_disruptive
+def check_down(cfg) -> None:
+    def reconfig(cfg) -> None:
+        ip("link set dev %s down" % cfg.ifname)
+        ip("link set dev %s up" % cfg.ifname)
+
+    _check_reconfig(cfg, reconfig)
+
+
+def main() -> None:
+    with NetDrvEnv(__file__, nsim_test=False) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        cfg.netnl = NetdevFamily()
+
+        ksft_run([check_irqs_reported, check_reconfig_queues,
+                  check_reconfig_xdp, check_down],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
new file mode 100644
index 000000000000..766bfc4ad842
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/lib/py/__init__.py
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Driver test environment (hardware-only tests).
+NetDrvEnv and NetDrvEpEnv are the main environment classes.
+Former is for local host only tests, latter creates / connects
+to a remote endpoint. See NIPA wiki for more information about
+running and writing driver tests.
+"""
+
+import sys
+from pathlib import Path
+
+KSFT_DIR = (Path(__file__).parent / "../../../../..").resolve()
+
+try:
+    sys.path.append(KSFT_DIR.as_posix())
+
+    # Import one by one to avoid pylint false positives
+    from net.lib.py import NetNS, NetNSEnter, NetdevSimDev
+    from net.lib.py import EthtoolFamily, NetdevFamily, NetshaperFamily, \
+        NlError, RtnlFamily, DevlinkFamily, PSPFamily
+    from net.lib.py import CmdExitFailure
+    from net.lib.py import bkg, cmd, bpftool, bpftrace, defer, ethtool, \
+        fd_read_timeout, ip, rand_port, wait_port_listen, wait_file
+    from net.lib.py import KsftSkipEx, KsftFailEx, KsftXfailEx
+    from net.lib.py import ksft_disruptive, ksft_exit, ksft_pr, ksft_run, \
+        ksft_setup, ksft_variants, KsftNamedVariant
+    from net.lib.py import ksft_eq, ksft_ge, ksft_in, ksft_is, ksft_lt, \
+        ksft_ne, ksft_not_in, ksft_raises, ksft_true, ksft_gt, ksft_not_none
+    from drivers.net.lib.py import GenerateTraffic, Remote, Iperf3Runner
+    from drivers.net.lib.py import NetDrvEnv, NetDrvEpEnv
+
+    __all__ = ["NetNS", "NetNSEnter", "NetdevSimDev",
+               "EthtoolFamily", "NetdevFamily", "NetshaperFamily",
+               "NlError", "RtnlFamily", "DevlinkFamily", "PSPFamily",
+               "CmdExitFailure",
+               "bkg", "cmd", "bpftool", "bpftrace", "defer", "ethtool",
+               "fd_read_timeout", "ip", "rand_port",
+               "wait_port_listen", "wait_file",
+               "KsftSkipEx", "KsftFailEx", "KsftXfailEx",
+               "ksft_disruptive", "ksft_exit", "ksft_pr", "ksft_run",
+               "ksft_setup", "ksft_variants", "KsftNamedVariant",
+               "ksft_eq", "ksft_ge", "ksft_in", "ksft_is", "ksft_lt",
+               "ksft_ne", "ksft_not_in", "ksft_raises", "ksft_true", "ksft_gt",
+               "ksft_not_none", "ksft_not_none",
+               "NetDrvEnv", "NetDrvEpEnv", "GenerateTraffic", "Remote",
+               "Iperf3Runner"]
+except ModuleNotFoundError as e:
+    print("Failed importing `net` library from kernel sources")
+    print(str(e))
+    sys.exit(4)
diff --git a/tools/testing/selftests/drivers/net/hw/loopback.sh b/tools/testing/selftests/drivers/net/hw/loopback.sh
new file mode 100755
index 000000000000..5acc3ff820aa
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/loopback.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+ALL_TESTS="loopback_test"
+NUM_NETIFS=2
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/tc_common.sh
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+	tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+loopback_test()
+{
+	RET=0
+
+	tc filter add dev $h1 ingress protocol arp pref 1 handle 101 flower \
+		skip_hw arp_op reply arp_tip 192.0.2.1 action drop
+
+	$MZ $h1 -c 1 -t arp -q
+
+	tc_check_packets "dev $h1 ingress" 101 1
+	check_fail $? "Matched on a filter without loopback setup"
+
+	ethtool -K $h1 loopback on
+	check_err $? "Failed to enable loopback"
+
+	setup_wait_dev $h1
+
+	$MZ $h1 -c 1 -t arp -q
+
+	tc_check_packets "dev $h1 ingress" 101 1
+	check_err $? "Did not match on filter with loopback"
+
+	ethtool -K $h1 loopback off
+	check_err $? "Failed to disable loopback"
+
+	$MZ $h1 -c 1 -t arp -q
+
+	tc_check_packets "dev $h1 ingress" 101 2
+	check_fail $? "Matched on a filter after loopback was removed"
+
+	tc filter del dev $h1 ingress protocol arp pref 1 handle 101 flower
+
+	log_test "loopback"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	if ethtool -k $h1 | grep loopback | grep -q fixed; then
+		log_test "SKIP: dev $h1 does not support loopback feature"
+		exit $ksft_skip
+	fi
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/hw/ncdevmem.c b/tools/testing/selftests/drivers/net/hw/ncdevmem.c
new file mode 100644
index 000000000000..3288ed04ce08
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/ncdevmem.c
@@ -0,0 +1,1524 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * tcpdevmem netcat. Works similarly to netcat but does device memory TCP
+ * instead of regular TCP. Uses udmabuf to mock a dmabuf provider.
+ *
+ * Usage:
+ *
+ *     On server:
+ *     ncdevmem -s <server IP> [-c <client IP>] -f eth1 -l -p 5201
+ *
+ *     On client:
+ *     echo -n "hello\nworld" | \
+ *		ncdevmem -s <server IP> [-c <client IP>] -p 5201 -f eth1
+ *
+ * Note this is compatible with regular netcat. i.e. the sender or receiver can
+ * be replaced with regular netcat to test the RX or TX path in isolation.
+ *
+ * Test data validation (devmem TCP on RX only):
+ *
+ *     On server:
+ *     ncdevmem -s <server IP> [-c <client IP>] -f eth1 -l -p 5201 -v 7
+ *
+ *     On client:
+ *     yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06) | \
+ *             head -c 1G | \
+ *             nc <server IP> 5201 -p 5201
+ *
+ * Test data validation (devmem TCP on RX and TX, validation happens on RX):
+ *
+ *	On server:
+ *	ncdevmem -s <server IP> [-c <client IP>] -l -p 5201 -v 8 -f eth1
+ *
+ *	On client:
+ *	yes $(echo -e \\x01\\x02\\x03\\x04\\x05\\x06\\x07) | \
+ *		head -c 1M | \
+ *		ncdevmem -s <server IP> [-c <client IP>] -p 5201 -f eth1
+ */
+#define _GNU_SOURCE
+#define __EXPORTED_HEADERS__
+
+#include <linux/uio.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#define __iovec_defined
+#include <fcntl.h>
+#include <malloc.h>
+#include <error.h>
+#include <poll.h>
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+
+#include <linux/memfd.h>
+#include <linux/dma-buf.h>
+#include <linux/errqueue.h>
+#include <linux/udmabuf.h>
+#include <linux/types.h>
+#include <linux/netlink.h>
+#include <linux/genetlink.h>
+#include <linux/netdev.h>
+#include <linux/ethtool_netlink.h>
+#include <time.h>
+#include <net/if.h>
+
+#include "netdev-user.h"
+#include "ethtool-user.h"
+#include <ynl.h>
+
+#define PAGE_SHIFT 12
+#define TEST_PREFIX "ncdevmem"
+#define NUM_PAGES 16000
+
+#ifndef MSG_SOCK_DEVMEM
+#define MSG_SOCK_DEVMEM 0x2000000
+#endif
+
+#define MAX_IOV 1024
+
+static size_t max_chunk;
+static char *server_ip;
+static char *client_ip;
+static char *port;
+static size_t do_validation;
+static int start_queue = -1;
+static int num_queues = -1;
+static char *ifname;
+static unsigned int ifindex;
+static unsigned int dmabuf_id;
+static uint32_t tx_dmabuf_id;
+static int waittime_ms = 500;
+
+/* System state loaded by current_config_load() */
+#define MAX_FLOWS	8
+static int ntuple_ids[MAX_FLOWS] = { -1, -1, -1, -1, -1, -1, -1, -1, };
+
+struct memory_buffer {
+	int fd;
+	size_t size;
+
+	int devfd;
+	int memfd;
+	char *buf_mem;
+};
+
+struct memory_provider {
+	struct memory_buffer *(*alloc)(size_t size);
+	void (*free)(struct memory_buffer *ctx);
+	void (*memcpy_to_device)(struct memory_buffer *dst, size_t off,
+				 void *src, int n);
+	void (*memcpy_from_device)(void *dst, struct memory_buffer *src,
+				   size_t off, int n);
+};
+
+static void pr_err(const char *fmt, ...)
+{
+	va_list args;
+
+	fprintf(stderr, "%s: ", TEST_PREFIX);
+
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+
+	if (errno != 0)
+		fprintf(stderr, ": %s", strerror(errno));
+	fprintf(stderr, "\n");
+}
+
+static struct memory_buffer *udmabuf_alloc(size_t size)
+{
+	struct udmabuf_create create;
+	struct memory_buffer *ctx;
+	int ret;
+
+	ctx = malloc(sizeof(*ctx));
+	if (!ctx)
+		return NULL;
+
+	ctx->size = size;
+
+	ctx->devfd = open("/dev/udmabuf", O_RDWR);
+	if (ctx->devfd < 0) {
+		pr_err("[skip,no-udmabuf: Unable to access DMA buffer device file]");
+		goto err_free_ctx;
+	}
+
+	ctx->memfd = memfd_create("udmabuf-test", MFD_ALLOW_SEALING);
+	if (ctx->memfd < 0) {
+		pr_err("[skip,no-memfd]");
+		goto err_close_dev;
+	}
+
+	ret = fcntl(ctx->memfd, F_ADD_SEALS, F_SEAL_SHRINK);
+	if (ret < 0) {
+		pr_err("[skip,fcntl-add-seals]");
+		goto err_close_memfd;
+	}
+
+	ret = ftruncate(ctx->memfd, size);
+	if (ret == -1) {
+		pr_err("[FAIL,memfd-truncate]");
+		goto err_close_memfd;
+	}
+
+	memset(&create, 0, sizeof(create));
+
+	create.memfd = ctx->memfd;
+	create.offset = 0;
+	create.size = size;
+	ctx->fd = ioctl(ctx->devfd, UDMABUF_CREATE, &create);
+	if (ctx->fd < 0) {
+		pr_err("[FAIL, create udmabuf]");
+		goto err_close_fd;
+	}
+
+	ctx->buf_mem = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED,
+			    ctx->fd, 0);
+	if (ctx->buf_mem == MAP_FAILED) {
+		pr_err("[FAIL, map udmabuf]");
+		goto err_close_fd;
+	}
+
+	return ctx;
+
+err_close_fd:
+	close(ctx->fd);
+err_close_memfd:
+	close(ctx->memfd);
+err_close_dev:
+	close(ctx->devfd);
+err_free_ctx:
+	free(ctx);
+	return NULL;
+}
+
+static void udmabuf_free(struct memory_buffer *ctx)
+{
+	munmap(ctx->buf_mem, ctx->size);
+	close(ctx->fd);
+	close(ctx->memfd);
+	close(ctx->devfd);
+	free(ctx);
+}
+
+static void udmabuf_memcpy_to_device(struct memory_buffer *dst, size_t off,
+				     void *src, int n)
+{
+	struct dma_buf_sync sync = {};
+
+	sync.flags = DMA_BUF_SYNC_START | DMA_BUF_SYNC_WRITE;
+	ioctl(dst->fd, DMA_BUF_IOCTL_SYNC, &sync);
+
+	memcpy(dst->buf_mem + off, src, n);
+
+	sync.flags = DMA_BUF_SYNC_END | DMA_BUF_SYNC_WRITE;
+	ioctl(dst->fd, DMA_BUF_IOCTL_SYNC, &sync);
+}
+
+static void udmabuf_memcpy_from_device(void *dst, struct memory_buffer *src,
+				       size_t off, int n)
+{
+	struct dma_buf_sync sync = {};
+
+	sync.flags = DMA_BUF_SYNC_START;
+	ioctl(src->fd, DMA_BUF_IOCTL_SYNC, &sync);
+
+	memcpy(dst, src->buf_mem + off, n);
+
+	sync.flags = DMA_BUF_SYNC_END;
+	ioctl(src->fd, DMA_BUF_IOCTL_SYNC, &sync);
+}
+
+static struct memory_provider udmabuf_memory_provider = {
+	.alloc = udmabuf_alloc,
+	.free = udmabuf_free,
+	.memcpy_to_device = udmabuf_memcpy_to_device,
+	.memcpy_from_device = udmabuf_memcpy_from_device,
+};
+
+static struct memory_provider *provider = &udmabuf_memory_provider;
+
+static void print_nonzero_bytes(void *ptr, size_t size)
+{
+	unsigned char *p = ptr;
+	unsigned int i;
+
+	for (i = 0; i < size; i++)
+		putchar(p[i]);
+}
+
+int validate_buffer(void *line, size_t size)
+{
+	static unsigned char seed = 1;
+	unsigned char *ptr = line;
+	unsigned char expected;
+	static int errors;
+	size_t i;
+
+	for (i = 0; i < size; i++) {
+		expected = seed ? seed : '\n';
+		if (ptr[i] != expected) {
+			fprintf(stderr,
+				"Failed validation: expected=%u, actual=%u, index=%lu\n",
+				expected, ptr[i], i);
+			errors++;
+			if (errors > 20) {
+				pr_err("validation failed");
+				return -1;
+			}
+		}
+		seed++;
+		if (seed == do_validation)
+			seed = 0;
+	}
+
+	fprintf(stdout, "Validated buffer\n");
+	return 0;
+}
+
+static int
+__run_command(char *out, size_t outlen, const char *cmd, va_list args)
+{
+	char command[256];
+	FILE *fp;
+
+	vsnprintf(command, sizeof(command), cmd, args);
+
+	fprintf(stderr, "Running: %s\n", command);
+	fp = popen(command, "r");
+	if (!fp)
+		return -1;
+	if (out) {
+		size_t len;
+
+		if (!fgets(out, outlen, fp))
+			return -1;
+
+		/* Remove trailing newline if present */
+		len = strlen(out);
+		if (len && out[len - 1] == '\n')
+			out[len - 1] = '\0';
+	}
+	return pclose(fp);
+}
+
+static int run_command(const char *cmd, ...)
+{
+	va_list args;
+	int ret;
+
+	va_start(args, cmd);
+	ret = __run_command(NULL, 0, cmd, args);
+	va_end(args);
+
+	return ret;
+}
+
+static int ethtool_add_flow(const char *format, ...)
+{
+	char local_output[256], cmd[256];
+	const char *id_start;
+	int flow_idx, ret;
+	char *endptr;
+	long flow_id;
+	va_list args;
+
+	for (flow_idx = 0; flow_idx < MAX_FLOWS; flow_idx++)
+		if (ntuple_ids[flow_idx] == -1)
+			break;
+	if (flow_idx == MAX_FLOWS) {
+		fprintf(stderr, "Error: too many flows\n");
+		return -1;
+	}
+
+	snprintf(cmd, sizeof(cmd), "ethtool -N %s %s", ifname, format);
+
+	va_start(args, format);
+	ret = __run_command(local_output, sizeof(local_output), cmd, args);
+	va_end(args);
+
+	if (ret != 0)
+		return ret;
+
+	/* Extract the ID from the output */
+	id_start = strstr(local_output, "Added rule with ID ");
+	if (!id_start)
+		return -1;
+	id_start += strlen("Added rule with ID ");
+
+	flow_id = strtol(id_start, &endptr, 10);
+	if (endptr == id_start || flow_id < 0 || flow_id > INT_MAX)
+		return -1;
+
+	fprintf(stderr, "Added flow rule with ID %ld\n", flow_id);
+	ntuple_ids[flow_idx] = flow_id;
+	return flow_id;
+}
+
+static int rxq_num(int ifindex)
+{
+	struct ethtool_channels_get_req *req;
+	struct ethtool_channels_get_rsp *rsp;
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+	int num = -1;
+
+	ys = ynl_sock_create(&ynl_ethtool_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return -1;
+	}
+
+	req = ethtool_channels_get_req_alloc();
+	ethtool_channels_get_req_set_header_dev_index(req, ifindex);
+	rsp = ethtool_channels_get(ys, req);
+	if (rsp)
+		num = rsp->rx_count + rsp->combined_count;
+	ethtool_channels_get_req_free(req);
+	ethtool_channels_get_rsp_free(rsp);
+
+	ynl_sock_destroy(ys);
+
+	return num;
+}
+
+static void reset_flow_steering(void)
+{
+	int i;
+
+	for (i = 0; i < MAX_FLOWS; i++) {
+		if (ntuple_ids[i] == -1)
+			continue;
+		run_command("ethtool -N %s delete %d",
+			    ifname, ntuple_ids[i]);
+		ntuple_ids[i] = -1;
+	}
+}
+
+static const char *tcp_data_split_str(int val)
+{
+	switch (val) {
+	case 0:
+		return "off";
+	case 1:
+		return "auto";
+	case 2:
+		return "on";
+	default:
+		return "?";
+	}
+}
+
+static struct ethtool_rings_get_rsp *get_ring_config(void)
+{
+	struct ethtool_rings_get_req *get_req;
+	struct ethtool_rings_get_rsp *get_rsp;
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+
+	ys = ynl_sock_create(&ynl_ethtool_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return NULL;
+	}
+
+	get_req = ethtool_rings_get_req_alloc();
+	ethtool_rings_get_req_set_header_dev_index(get_req, ifindex);
+	get_rsp = ethtool_rings_get(ys, get_req);
+	ethtool_rings_get_req_free(get_req);
+
+	ynl_sock_destroy(ys);
+
+	return get_rsp;
+}
+
+static void restore_ring_config(const struct ethtool_rings_get_rsp *config)
+{
+	struct ethtool_rings_get_req *get_req;
+	struct ethtool_rings_get_rsp *get_rsp;
+	struct ethtool_rings_set_req *req;
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+	int ret;
+
+	if (!config)
+		return;
+
+	ys = ynl_sock_create(&ynl_ethtool_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return;
+	}
+
+	req = ethtool_rings_set_req_alloc();
+	ethtool_rings_set_req_set_header_dev_index(req, ifindex);
+	ethtool_rings_set_req_set_tcp_data_split(req,
+						ETHTOOL_TCP_DATA_SPLIT_UNKNOWN);
+	if (config->_present.hds_thresh)
+		ethtool_rings_set_req_set_hds_thresh(req, config->hds_thresh);
+
+	ret = ethtool_rings_set(ys, req);
+	if (ret < 0)
+		fprintf(stderr, "YNL restoring HDS cfg: %s\n", ys->err.msg);
+
+	get_req = ethtool_rings_get_req_alloc();
+	ethtool_rings_get_req_set_header_dev_index(get_req, ifindex);
+	get_rsp = ethtool_rings_get(ys, get_req);
+	ethtool_rings_get_req_free(get_req);
+
+	/* use explicit value if UKNOWN didn't give us the previous */
+	if (get_rsp->tcp_data_split != config->tcp_data_split) {
+		ethtool_rings_set_req_set_tcp_data_split(req,
+							config->tcp_data_split);
+		ret = ethtool_rings_set(ys, req);
+		if (ret < 0)
+			fprintf(stderr, "YNL restoring expl HDS cfg: %s\n",
+				ys->err.msg);
+	}
+
+	ethtool_rings_get_rsp_free(get_rsp);
+	ethtool_rings_set_req_free(req);
+
+	ynl_sock_destroy(ys);
+}
+
+static int
+configure_headersplit(const struct ethtool_rings_get_rsp *old, bool on)
+{
+	struct ethtool_rings_get_req *get_req;
+	struct ethtool_rings_get_rsp *get_rsp;
+	struct ethtool_rings_set_req *req;
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+	int ret;
+
+	ys = ynl_sock_create(&ynl_ethtool_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return -1;
+	}
+
+	req = ethtool_rings_set_req_alloc();
+	ethtool_rings_set_req_set_header_dev_index(req, ifindex);
+	if (on) {
+		ethtool_rings_set_req_set_tcp_data_split(req,
+						ETHTOOL_TCP_DATA_SPLIT_ENABLED);
+		if (old->_present.hds_thresh)
+			ethtool_rings_set_req_set_hds_thresh(req, 0);
+	} else {
+		ethtool_rings_set_req_set_tcp_data_split(req,
+						ETHTOOL_TCP_DATA_SPLIT_UNKNOWN);
+	}
+	ret = ethtool_rings_set(ys, req);
+	if (ret < 0)
+		fprintf(stderr, "YNL failed: %s\n", ys->err.msg);
+	ethtool_rings_set_req_free(req);
+
+	if (ret == 0) {
+		get_req = ethtool_rings_get_req_alloc();
+		ethtool_rings_get_req_set_header_dev_index(get_req, ifindex);
+		get_rsp = ethtool_rings_get(ys, get_req);
+		ethtool_rings_get_req_free(get_req);
+		if (get_rsp)
+			fprintf(stderr, "TCP header split: %s\n",
+				tcp_data_split_str(get_rsp->tcp_data_split));
+		ethtool_rings_get_rsp_free(get_rsp);
+	}
+
+	ynl_sock_destroy(ys);
+
+	return ret;
+}
+
+static int configure_rss(void)
+{
+	return run_command("ethtool -X %s equal %d >&2", ifname, start_queue);
+}
+
+static void reset_rss(void)
+{
+	run_command("ethtool -X %s default >&2", ifname, start_queue);
+}
+
+static int check_changing_channels(unsigned int rx, unsigned int tx)
+{
+	struct ethtool_channels_get_req *gchan;
+	struct ethtool_channels_set_req *schan;
+	struct ethtool_channels_get_rsp *chan;
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+	int ret;
+
+	fprintf(stderr, "setting channel count rx:%u tx:%u\n", rx, tx);
+
+	ys = ynl_sock_create(&ynl_ethtool_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return -1;
+	}
+
+	gchan = ethtool_channels_get_req_alloc();
+	if (!gchan) {
+		ret = -1;
+		goto exit_close_sock;
+	}
+
+	ethtool_channels_get_req_set_header_dev_index(gchan, ifindex);
+	chan = ethtool_channels_get(ys, gchan);
+	ethtool_channels_get_req_free(gchan);
+	if (!chan) {
+		fprintf(stderr, "YNL get channels: %s\n", ys->err.msg);
+		ret = -1;
+		goto exit_close_sock;
+	}
+
+	schan =	ethtool_channels_set_req_alloc();
+	if (!schan) {
+		ret = -1;
+		goto exit_free_chan;
+	}
+
+	ethtool_channels_set_req_set_header_dev_index(schan, ifindex);
+
+	if (chan->_present.combined_count) {
+		if (chan->_present.rx_count || chan->_present.tx_count) {
+			ethtool_channels_set_req_set_rx_count(schan, 0);
+			ethtool_channels_set_req_set_tx_count(schan, 0);
+		}
+
+		if (rx == tx) {
+			ethtool_channels_set_req_set_combined_count(schan, rx);
+		} else if (rx > tx) {
+			ethtool_channels_set_req_set_combined_count(schan, tx);
+			ethtool_channels_set_req_set_rx_count(schan, rx - tx);
+		} else {
+			ethtool_channels_set_req_set_combined_count(schan, rx);
+			ethtool_channels_set_req_set_tx_count(schan, tx - rx);
+		}
+
+	} else if (chan->_present.rx_count) {
+		ethtool_channels_set_req_set_rx_count(schan, rx);
+		ethtool_channels_set_req_set_tx_count(schan, tx);
+	} else {
+		fprintf(stderr, "Error: device has neither combined nor rx channels\n");
+		ret = -1;
+		goto exit_free_schan;
+	}
+
+	ret = ethtool_channels_set(ys, schan);
+	if (ret) {
+		fprintf(stderr, "YNL set channels: %s\n", ys->err.msg);
+	} else {
+		/* We were expecting a failure, go back to previous settings */
+		ethtool_channels_set_req_set_combined_count(schan,
+							    chan->combined_count);
+		ethtool_channels_set_req_set_rx_count(schan, chan->rx_count);
+		ethtool_channels_set_req_set_tx_count(schan, chan->tx_count);
+
+		ret = ethtool_channels_set(ys, schan);
+		if (ret)
+			fprintf(stderr, "YNL un-setting channels: %s\n",
+				ys->err.msg);
+	}
+
+exit_free_schan:
+	ethtool_channels_set_req_free(schan);
+exit_free_chan:
+	ethtool_channels_get_rsp_free(chan);
+exit_close_sock:
+	ynl_sock_destroy(ys);
+
+	return ret;
+}
+
+static int configure_flow_steering(struct sockaddr_in6 *server_sin)
+{
+	const char *type = "tcp6";
+	const char *server_addr;
+	char buf[40];
+	int flow_id;
+
+	inet_ntop(AF_INET6, &server_sin->sin6_addr, buf, sizeof(buf));
+	server_addr = buf;
+
+	if (IN6_IS_ADDR_V4MAPPED(&server_sin->sin6_addr)) {
+		type = "tcp4";
+		server_addr = strrchr(server_addr, ':') + 1;
+	}
+
+	/* Try configure 5-tuple */
+	flow_id = ethtool_add_flow("flow-type %s %s %s dst-ip %s %s %s dst-port %s queue %d",
+				   type,
+				   client_ip ? "src-ip" : "",
+				   client_ip ?: "",
+				   server_addr,
+				   client_ip ? "src-port" : "",
+				   client_ip ? port : "",
+				   port, start_queue);
+	if (flow_id < 0) {
+		/* If that fails, try configure 3-tuple */
+		flow_id = ethtool_add_flow("flow-type %s dst-ip %s dst-port %s queue %d",
+					   type, server_addr, port, start_queue);
+		if (flow_id < 0)
+			/* If that fails, return error */
+			return -1;
+	}
+
+	return 0;
+}
+
+static int bind_rx_queue(unsigned int ifindex, unsigned int dmabuf_fd,
+			 struct netdev_queue_id *queues,
+			 unsigned int n_queue_index, struct ynl_sock **ys)
+{
+	struct netdev_bind_rx_req *req = NULL;
+	struct netdev_bind_rx_rsp *rsp = NULL;
+	struct ynl_error yerr;
+
+	*ys = ynl_sock_create(&ynl_netdev_family, &yerr);
+	if (!*ys) {
+		netdev_queue_id_free(queues);
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return -1;
+	}
+
+	req = netdev_bind_rx_req_alloc();
+	netdev_bind_rx_req_set_ifindex(req, ifindex);
+	netdev_bind_rx_req_set_fd(req, dmabuf_fd);
+	__netdev_bind_rx_req_set_queues(req, queues, n_queue_index);
+
+	rsp = netdev_bind_rx(*ys, req);
+	if (!rsp) {
+		perror("netdev_bind_rx");
+		goto err_close;
+	}
+
+	if (!rsp->_present.id) {
+		perror("id not present");
+		goto err_close;
+	}
+
+	fprintf(stderr, "got dmabuf id=%d\n", rsp->id);
+	dmabuf_id = rsp->id;
+
+	netdev_bind_rx_req_free(req);
+	netdev_bind_rx_rsp_free(rsp);
+
+	return 0;
+
+err_close:
+	fprintf(stderr, "YNL failed: %s\n", (*ys)->err.msg);
+	netdev_bind_rx_req_free(req);
+	ynl_sock_destroy(*ys);
+	return -1;
+}
+
+static int bind_tx_queue(unsigned int ifindex, unsigned int dmabuf_fd,
+			 struct ynl_sock **ys)
+{
+	struct netdev_bind_tx_req *req = NULL;
+	struct netdev_bind_tx_rsp *rsp = NULL;
+	struct ynl_error yerr;
+
+	*ys = ynl_sock_create(&ynl_netdev_family, &yerr);
+	if (!*ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return -1;
+	}
+
+	req = netdev_bind_tx_req_alloc();
+	netdev_bind_tx_req_set_ifindex(req, ifindex);
+	netdev_bind_tx_req_set_fd(req, dmabuf_fd);
+
+	rsp = netdev_bind_tx(*ys, req);
+	if (!rsp) {
+		perror("netdev_bind_tx");
+		goto err_close;
+	}
+
+	if (!rsp->_present.id) {
+		perror("id not present");
+		goto err_close;
+	}
+
+	fprintf(stderr, "got tx dmabuf id=%d\n", rsp->id);
+	tx_dmabuf_id = rsp->id;
+
+	netdev_bind_tx_req_free(req);
+	netdev_bind_tx_rsp_free(rsp);
+
+	return 0;
+
+err_close:
+	fprintf(stderr, "YNL failed: %s\n", (*ys)->err.msg);
+	netdev_bind_tx_req_free(req);
+	ynl_sock_destroy(*ys);
+	return -1;
+}
+
+static int enable_reuseaddr(int fd)
+{
+	int opt = 1;
+	int ret;
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt));
+	if (ret) {
+		pr_err("SO_REUSEPORT failed");
+		return -1;
+	}
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
+	if (ret) {
+		pr_err("SO_REUSEADDR failed");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int parse_address(const char *str, int port, struct sockaddr_in6 *sin6)
+{
+	int ret;
+
+	sin6->sin6_family = AF_INET6;
+	sin6->sin6_port = htons(port);
+
+	ret = inet_pton(sin6->sin6_family, str, &sin6->sin6_addr);
+	if (ret != 1) {
+		/* fallback to plain IPv4 */
+		ret = inet_pton(AF_INET, str, &sin6->sin6_addr.s6_addr32[3]);
+		if (ret != 1)
+			return -1;
+
+		/* add ::ffff prefix */
+		sin6->sin6_addr.s6_addr32[0] = 0;
+		sin6->sin6_addr.s6_addr32[1] = 0;
+		sin6->sin6_addr.s6_addr16[4] = 0;
+		sin6->sin6_addr.s6_addr16[5] = 0xffff;
+	}
+
+	return 0;
+}
+
+static struct netdev_queue_id *create_queues(void)
+{
+	struct netdev_queue_id *queues;
+	size_t i = 0;
+
+	queues = netdev_queue_id_alloc(num_queues);
+	for (i = 0; i < num_queues; i++) {
+		netdev_queue_id_set_type(&queues[i], NETDEV_QUEUE_TYPE_RX);
+		netdev_queue_id_set_id(&queues[i], start_queue + i);
+	}
+
+	return queues;
+}
+
+static int do_server(struct memory_buffer *mem)
+{
+	struct ethtool_rings_get_rsp *ring_config;
+	char ctrl_data[sizeof(int) * 20000];
+	size_t non_page_aligned_frags = 0;
+	struct sockaddr_in6 client_addr;
+	struct sockaddr_in6 server_sin;
+	size_t page_aligned_frags = 0;
+	size_t total_received = 0;
+	socklen_t client_addr_len;
+	bool is_devmem = false;
+	char *tmp_mem = NULL;
+	struct ynl_sock *ys;
+	char iobuf[819200];
+	int ret, err = -1;
+	char buffer[256];
+	int socket_fd;
+	int client_fd;
+
+	ret = parse_address(server_ip, atoi(port), &server_sin);
+	if (ret < 0) {
+		pr_err("parse server address");
+		return -1;
+	}
+
+	ring_config = get_ring_config();
+	if (!ring_config) {
+		pr_err("Failed to get current ring configuration");
+		return -1;
+	}
+
+	if (configure_headersplit(ring_config, 1)) {
+		pr_err("Failed to enable TCP header split");
+		goto err_free_ring_config;
+	}
+
+	/* Configure RSS to divert all traffic from our devmem queues */
+	if (configure_rss()) {
+		pr_err("Failed to configure rss");
+		goto err_reset_headersplit;
+	}
+
+	/* Flow steer our devmem flows to start_queue */
+	if (configure_flow_steering(&server_sin)) {
+		pr_err("Failed to configure flow steering");
+		goto err_reset_rss;
+	}
+
+	if (bind_rx_queue(ifindex, mem->fd, create_queues(), num_queues, &ys)) {
+		pr_err("Failed to bind");
+		goto err_reset_flow_steering;
+	}
+
+	tmp_mem = malloc(mem->size);
+	if (!tmp_mem)
+		goto err_unbind;
+
+	socket_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (socket_fd < 0) {
+		pr_err("Failed to create socket");
+		goto err_free_tmp;
+	}
+
+	if (enable_reuseaddr(socket_fd))
+		goto err_close_socket;
+
+	fprintf(stderr, "binding to address %s:%d\n", server_ip,
+		ntohs(server_sin.sin6_port));
+
+	ret = bind(socket_fd, &server_sin, sizeof(server_sin));
+	if (ret) {
+		pr_err("Failed to bind");
+		goto err_close_socket;
+	}
+
+	ret = listen(socket_fd, 1);
+	if (ret) {
+		pr_err("Failed to listen");
+		goto err_close_socket;
+	}
+
+	client_addr_len = sizeof(client_addr);
+
+	inet_ntop(AF_INET6, &server_sin.sin6_addr, buffer,
+		  sizeof(buffer));
+	fprintf(stderr, "Waiting or connection on %s:%d\n", buffer,
+		ntohs(server_sin.sin6_port));
+	client_fd = accept(socket_fd, &client_addr, &client_addr_len);
+	if (client_fd < 0) {
+		pr_err("Failed to accept");
+		goto err_close_socket;
+	}
+
+	inet_ntop(AF_INET6, &client_addr.sin6_addr, buffer,
+		  sizeof(buffer));
+	fprintf(stderr, "Got connection from %s:%d\n", buffer,
+		ntohs(client_addr.sin6_port));
+
+	while (1) {
+		struct iovec iov = { .iov_base = iobuf,
+				     .iov_len = sizeof(iobuf) };
+		struct dmabuf_cmsg *dmabuf_cmsg = NULL;
+		struct cmsghdr *cm = NULL;
+		struct msghdr msg = { 0 };
+		struct dmabuf_token token;
+		ssize_t ret;
+
+		is_devmem = false;
+
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = ctrl_data;
+		msg.msg_controllen = sizeof(ctrl_data);
+		ret = recvmsg(client_fd, &msg, MSG_SOCK_DEVMEM);
+		fprintf(stderr, "recvmsg ret=%ld\n", ret);
+		if (ret < 0 && (errno == EAGAIN || errno == EWOULDBLOCK))
+			continue;
+		if (ret < 0) {
+			perror("recvmsg");
+			if (errno == EFAULT) {
+				pr_err("received EFAULT, won't recover");
+				goto err_close_client;
+			}
+			continue;
+		}
+		if (ret == 0) {
+			errno = 0;
+			pr_err("client exited");
+			goto cleanup;
+		}
+
+		for (cm = CMSG_FIRSTHDR(&msg); cm; cm = CMSG_NXTHDR(&msg, cm)) {
+			if (cm->cmsg_level != SOL_SOCKET ||
+			    (cm->cmsg_type != SCM_DEVMEM_DMABUF &&
+			     cm->cmsg_type != SCM_DEVMEM_LINEAR)) {
+				fprintf(stderr, "skipping non-devmem cmsg\n");
+				continue;
+			}
+
+			dmabuf_cmsg = (struct dmabuf_cmsg *)CMSG_DATA(cm);
+			is_devmem = true;
+
+			if (cm->cmsg_type == SCM_DEVMEM_LINEAR) {
+				/* TODO: process data copied from skb's linear
+				 * buffer.
+				 */
+				fprintf(stderr,
+					"SCM_DEVMEM_LINEAR. dmabuf_cmsg->frag_size=%u\n",
+					dmabuf_cmsg->frag_size);
+
+				continue;
+			}
+
+			token.token_start = dmabuf_cmsg->frag_token;
+			token.token_count = 1;
+
+			total_received += dmabuf_cmsg->frag_size;
+			fprintf(stderr,
+				"received frag_page=%llu, in_page_offset=%llu, frag_offset=%llu, frag_size=%u, token=%u, total_received=%lu, dmabuf_id=%u\n",
+				dmabuf_cmsg->frag_offset >> PAGE_SHIFT,
+				dmabuf_cmsg->frag_offset % getpagesize(),
+				dmabuf_cmsg->frag_offset,
+				dmabuf_cmsg->frag_size, dmabuf_cmsg->frag_token,
+				total_received, dmabuf_cmsg->dmabuf_id);
+
+			if (dmabuf_cmsg->dmabuf_id != dmabuf_id) {
+				pr_err("received on wrong dmabuf_id: flow steering error");
+				goto err_close_client;
+			}
+
+			if (dmabuf_cmsg->frag_size % getpagesize())
+				non_page_aligned_frags++;
+			else
+				page_aligned_frags++;
+
+			provider->memcpy_from_device(tmp_mem, mem,
+						     dmabuf_cmsg->frag_offset,
+						     dmabuf_cmsg->frag_size);
+
+			if (do_validation) {
+				if (validate_buffer(tmp_mem,
+						    dmabuf_cmsg->frag_size))
+					goto err_close_client;
+			} else {
+				print_nonzero_bytes(tmp_mem,
+						    dmabuf_cmsg->frag_size);
+			}
+
+			ret = setsockopt(client_fd, SOL_SOCKET,
+					 SO_DEVMEM_DONTNEED, &token,
+					 sizeof(token));
+			if (ret != 1) {
+				pr_err("SO_DEVMEM_DONTNEED not enough tokens");
+				goto err_close_client;
+			}
+		}
+		if (!is_devmem) {
+			pr_err("flow steering error");
+			goto err_close_client;
+		}
+
+		fprintf(stderr, "total_received=%lu\n", total_received);
+	}
+
+	fprintf(stderr, "%s: ok\n", TEST_PREFIX);
+
+	fprintf(stderr, "page_aligned_frags=%lu, non_page_aligned_frags=%lu\n",
+		page_aligned_frags, non_page_aligned_frags);
+
+cleanup:
+	err = 0;
+
+err_close_client:
+	close(client_fd);
+err_close_socket:
+	close(socket_fd);
+err_free_tmp:
+	free(tmp_mem);
+err_unbind:
+	ynl_sock_destroy(ys);
+err_reset_flow_steering:
+	reset_flow_steering();
+err_reset_rss:
+	reset_rss();
+err_reset_headersplit:
+	restore_ring_config(ring_config);
+err_free_ring_config:
+	ethtool_rings_get_rsp_free(ring_config);
+	return err;
+}
+
+int run_devmem_tests(void)
+{
+	struct ethtool_rings_get_rsp *ring_config;
+	struct netdev_queue_id *queues;
+	struct memory_buffer *mem;
+	struct ynl_sock *ys;
+	int err = -1;
+
+	mem = provider->alloc(getpagesize() * NUM_PAGES);
+	if (!mem) {
+		pr_err("Failed to allocate memory buffer");
+		return -1;
+	}
+
+	ring_config = get_ring_config();
+	if (!ring_config) {
+		pr_err("Failed to get current ring configuration");
+		goto err_free_mem;
+	}
+
+	/* Configure RSS to divert all traffic from our devmem queues */
+	if (configure_rss()) {
+		pr_err("rss error");
+		goto err_free_ring_config;
+	}
+
+	if (configure_headersplit(ring_config, 1)) {
+		pr_err("Failed to configure header split");
+		goto err_reset_rss;
+	}
+
+	queues = netdev_queue_id_alloc(num_queues);
+	if (!queues) {
+		pr_err("Failed to allocate empty queues array");
+		goto err_reset_headersplit;
+	}
+
+	if (!bind_rx_queue(ifindex, mem->fd, queues, num_queues, &ys)) {
+		pr_err("Binding empty queues array should have failed");
+		goto err_unbind;
+	}
+
+	if (configure_headersplit(ring_config, 0)) {
+		pr_err("Failed to configure header split");
+		goto err_reset_headersplit;
+	}
+
+	queues = create_queues();
+	if (!queues) {
+		pr_err("Failed to create queues");
+		goto err_reset_headersplit;
+	}
+
+	if (!bind_rx_queue(ifindex, mem->fd, queues, num_queues, &ys)) {
+		pr_err("Configure dmabuf with header split off should have failed");
+		goto err_unbind;
+	}
+
+	if (configure_headersplit(ring_config, 1)) {
+		pr_err("Failed to configure header split");
+		goto err_reset_headersplit;
+	}
+
+	queues = create_queues();
+	if (!queues) {
+		pr_err("Failed to create queues");
+		goto err_reset_headersplit;
+	}
+
+	if (bind_rx_queue(ifindex, mem->fd, queues, num_queues, &ys)) {
+		pr_err("Failed to bind");
+		goto err_reset_headersplit;
+	}
+
+	/* Deactivating a bound queue should not be legal */
+	if (!check_changing_channels(num_queues, num_queues)) {
+		pr_err("Deactivating a bound queue should be illegal");
+		goto err_unbind;
+	}
+
+	err = 0;
+	goto err_unbind;
+
+err_unbind:
+	ynl_sock_destroy(ys);
+err_reset_headersplit:
+	restore_ring_config(ring_config);
+err_reset_rss:
+	reset_rss();
+err_free_ring_config:
+	ethtool_rings_get_rsp_free(ring_config);
+err_free_mem:
+	provider->free(mem);
+	return err;
+}
+
+static uint64_t gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000ULL) + (tv.tv_usec / 1000ULL);
+}
+
+static int do_poll(int fd)
+{
+	struct pollfd pfd;
+	int ret;
+
+	pfd.revents = 0;
+	pfd.fd = fd;
+
+	ret = poll(&pfd, 1, waittime_ms);
+	if (ret == -1) {
+		pr_err("poll");
+		return -1;
+	}
+
+	return ret && (pfd.revents & POLLERR);
+}
+
+static int wait_compl(int fd)
+{
+	int64_t tstop = gettimeofday_ms() + waittime_ms;
+	char control[CMSG_SPACE(100)] = {};
+	struct sock_extended_err *serr;
+	struct msghdr msg = {};
+	struct cmsghdr *cm;
+	__u32 hi, lo;
+	int ret;
+
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	while (gettimeofday_ms() < tstop) {
+		ret = do_poll(fd);
+		if (ret < 0)
+			return ret;
+		if (!ret)
+			continue;
+
+		ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+		if (ret < 0) {
+			if (errno == EAGAIN)
+				continue;
+			pr_err("recvmsg(MSG_ERRQUEUE)");
+			return -1;
+		}
+		if (msg.msg_flags & MSG_CTRUNC) {
+			pr_err("MSG_CTRUNC");
+			return -1;
+		}
+
+		for (cm = CMSG_FIRSTHDR(&msg); cm; cm = CMSG_NXTHDR(&msg, cm)) {
+			if (cm->cmsg_level != SOL_IP &&
+			    cm->cmsg_level != SOL_IPV6)
+				continue;
+			if (cm->cmsg_level == SOL_IP &&
+			    cm->cmsg_type != IP_RECVERR)
+				continue;
+			if (cm->cmsg_level == SOL_IPV6 &&
+			    cm->cmsg_type != IPV6_RECVERR)
+				continue;
+
+			serr = (void *)CMSG_DATA(cm);
+			if (serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY) {
+				pr_err("wrong origin %u", serr->ee_origin);
+				return -1;
+			}
+			if (serr->ee_errno != 0) {
+				pr_err("wrong errno %d", serr->ee_errno);
+				return -1;
+			}
+
+			hi = serr->ee_data;
+			lo = serr->ee_info;
+
+			fprintf(stderr, "tx complete [%d,%d]\n", lo, hi);
+			return 0;
+		}
+	}
+
+	pr_err("did not receive tx completion");
+	return -1;
+}
+
+static int do_client(struct memory_buffer *mem)
+{
+	char ctrl_data[CMSG_SPACE(sizeof(__u32))];
+	struct sockaddr_in6 server_sin;
+	struct sockaddr_in6 client_sin;
+	struct ynl_sock *ys = NULL;
+	struct iovec iov[MAX_IOV];
+	struct msghdr msg = {};
+	ssize_t line_size = 0;
+	struct cmsghdr *cmsg;
+	char *line = NULL;
+	int ret, err = -1;
+	size_t len = 0;
+	int socket_fd;
+	__u32 ddmabuf;
+	int opt = 1;
+
+	ret = parse_address(server_ip, atoi(port), &server_sin);
+	if (ret < 0) {
+		pr_err("parse server address");
+		return -1;
+	}
+
+	if (client_ip) {
+		ret = parse_address(client_ip, atoi(port), &client_sin);
+		if (ret < 0) {
+			pr_err("parse client address");
+			return ret;
+		}
+	}
+
+	socket_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (socket_fd < 0) {
+		pr_err("create socket");
+		return -1;
+	}
+
+	if (enable_reuseaddr(socket_fd))
+		goto err_close_socket;
+
+	ret = setsockopt(socket_fd, SOL_SOCKET, SO_BINDTODEVICE, ifname,
+			 strlen(ifname) + 1);
+	if (ret) {
+		pr_err("bindtodevice");
+		goto err_close_socket;
+	}
+
+	if (bind_tx_queue(ifindex, mem->fd, &ys)) {
+		pr_err("Failed to bind");
+		goto err_close_socket;
+	}
+
+	if (client_ip) {
+		ret = bind(socket_fd, &client_sin, sizeof(client_sin));
+		if (ret) {
+			pr_err("bind");
+			goto err_unbind;
+		}
+	}
+
+	ret = setsockopt(socket_fd, SOL_SOCKET, SO_ZEROCOPY, &opt, sizeof(opt));
+	if (ret) {
+		pr_err("set sock opt");
+		goto err_unbind;
+	}
+
+	fprintf(stderr, "Connect to %s %d (via %s)\n", server_ip,
+		ntohs(server_sin.sin6_port), ifname);
+
+	ret = connect(socket_fd, &server_sin, sizeof(server_sin));
+	if (ret) {
+		pr_err("connect");
+		goto err_unbind;
+	}
+
+	while (1) {
+		free(line);
+		line = NULL;
+		line_size = getline(&line, &len, stdin);
+
+		if (line_size < 0)
+			break;
+
+		if (max_chunk) {
+			msg.msg_iovlen =
+				(line_size + max_chunk - 1) / max_chunk;
+			if (msg.msg_iovlen > MAX_IOV) {
+				pr_err("can't partition %zd bytes into maximum of %d chunks",
+				       line_size, MAX_IOV);
+				goto err_free_line;
+			}
+
+			for (int i = 0; i < msg.msg_iovlen; i++) {
+				iov[i].iov_base = (void *)(i * max_chunk);
+				iov[i].iov_len = max_chunk;
+			}
+
+			iov[msg.msg_iovlen - 1].iov_len =
+				line_size - (msg.msg_iovlen - 1) * max_chunk;
+		} else {
+			iov[0].iov_base = 0;
+			iov[0].iov_len = line_size;
+			msg.msg_iovlen = 1;
+		}
+
+		msg.msg_iov = iov;
+		provider->memcpy_to_device(mem, 0, line, line_size);
+
+		msg.msg_control = ctrl_data;
+		msg.msg_controllen = sizeof(ctrl_data);
+
+		cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_DEVMEM_DMABUF;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(__u32));
+
+		ddmabuf = tx_dmabuf_id;
+
+		*((__u32 *)CMSG_DATA(cmsg)) = ddmabuf;
+
+		ret = sendmsg(socket_fd, &msg, MSG_ZEROCOPY);
+		if (ret < 0) {
+			pr_err("Failed sendmsg");
+			goto err_free_line;
+		}
+
+		fprintf(stderr, "sendmsg_ret=%d\n", ret);
+
+		if (ret != line_size) {
+			pr_err("Did not send all bytes %d vs %zd", ret, line_size);
+			goto err_free_line;
+		}
+
+		if (wait_compl(socket_fd))
+			goto err_free_line;
+	}
+
+	fprintf(stderr, "%s: tx ok\n", TEST_PREFIX);
+
+	err = 0;
+
+err_free_line:
+	free(line);
+err_unbind:
+	ynl_sock_destroy(ys);
+err_close_socket:
+	close(socket_fd);
+	return err;
+}
+
+int main(int argc, char *argv[])
+{
+	struct memory_buffer *mem;
+	int is_server = 0, opt;
+	int ret, err = 1;
+
+	while ((opt = getopt(argc, argv, "ls:c:p:v:q:t:f:z:")) != -1) {
+		switch (opt) {
+		case 'l':
+			is_server = 1;
+			break;
+		case 's':
+			server_ip = optarg;
+			break;
+		case 'c':
+			client_ip = optarg;
+			break;
+		case 'p':
+			port = optarg;
+			break;
+		case 'v':
+			do_validation = atoll(optarg);
+			break;
+		case 'q':
+			num_queues = atoi(optarg);
+			break;
+		case 't':
+			start_queue = atoi(optarg);
+			break;
+		case 'f':
+			ifname = optarg;
+			break;
+		case 'z':
+			max_chunk = atoi(optarg);
+			break;
+		case '?':
+			fprintf(stderr, "unknown option: %c\n", optopt);
+			break;
+		}
+	}
+
+	if (!ifname) {
+		pr_err("Missing -f argument");
+		return 1;
+	}
+
+	ifindex = if_nametoindex(ifname);
+
+	fprintf(stderr, "using ifindex=%u\n", ifindex);
+
+	if (!server_ip && !client_ip) {
+		if (start_queue < 0 && num_queues < 0) {
+			num_queues = rxq_num(ifindex);
+			if (num_queues < 0) {
+				pr_err("couldn't detect number of queues");
+				return 1;
+			}
+			if (num_queues < 2) {
+				pr_err("number of device queues is too low");
+				return 1;
+			}
+			/* make sure can bind to multiple queues */
+			start_queue = num_queues / 2;
+			num_queues /= 2;
+		}
+
+		if (start_queue < 0 || num_queues < 0) {
+			pr_err("Both -t and -q are required");
+			return 1;
+		}
+
+		return run_devmem_tests();
+	}
+
+	if (start_queue < 0 && num_queues < 0) {
+		num_queues = rxq_num(ifindex);
+		if (num_queues < 2) {
+			pr_err("number of device queues is too low");
+			return 1;
+		}
+
+		num_queues = 1;
+		start_queue = rxq_num(ifindex) - num_queues;
+
+		if (start_queue < 0) {
+			pr_err("couldn't detect number of queues");
+			return 1;
+		}
+
+		fprintf(stderr, "using queues %d..%d\n", start_queue, start_queue + num_queues);
+	}
+
+	for (; optind < argc; optind++)
+		fprintf(stderr, "extra arguments: %s\n", argv[optind]);
+
+	if (start_queue < 0) {
+		pr_err("Missing -t argument");
+		return 1;
+	}
+
+	if (num_queues < 0) {
+		pr_err("Missing -q argument");
+		return 1;
+	}
+
+	if (!server_ip) {
+		pr_err("Missing -s argument");
+		return 1;
+	}
+
+	if (!port) {
+		pr_err("Missing -p argument");
+		return 1;
+	}
+
+	mem = provider->alloc(getpagesize() * NUM_PAGES);
+	if (!mem) {
+		pr_err("Failed to allocate memory buffer");
+		return 1;
+	}
+
+	ret = is_server ? do_server(mem) : do_client(mem);
+	if (ret)
+		goto err_free_mem;
+
+	err = 0;
+
+err_free_mem:
+	provider->free(mem);
+	return err;
+}
diff --git a/tools/testing/selftests/drivers/net/hw/nic_timestamp.py b/tools/testing/selftests/drivers/net/hw/nic_timestamp.py
new file mode 100755
index 000000000000..c1e943d53f19
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/nic_timestamp.py
@@ -0,0 +1,113 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Tests related to configuration of HW timestamping
+"""
+
+import errno
+from lib.py import ksft_run, ksft_exit, ksft_ge, ksft_eq, KsftSkipEx
+from lib.py import NetDrvEnv, EthtoolFamily, NlError
+
+
+def __get_hwtimestamp_support(cfg):
+    """ Retrieve supported configuration information """
+
+    try:
+        tsinfo = cfg.ethnl.tsinfo_get({'header': {'dev-name': cfg.ifname}})
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("timestamping configuration is not supported") from e
+        raise
+
+    ctx = {}
+    tx = tsinfo.get('tx-types', {})
+    rx = tsinfo.get('rx-filters', {})
+
+    bits = tx.get('bits', {})
+    ctx['tx'] = bits.get('bit', [])
+    bits = rx.get('bits', {})
+    ctx['rx'] = bits.get('bit', [])
+    return ctx
+
+
+def __get_hwtimestamp_config(cfg):
+    """ Retrieve current TS configuration information """
+
+    try:
+        tscfg = cfg.ethnl.tsconfig_get({'header': {'dev-name': cfg.ifname}})
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("timestamping configuration is not supported via netlink") from e
+        raise
+    return tscfg
+
+
+def __set_hwtimestamp_config(cfg, ts):
+    """ Setup new TS configuration information """
+
+    ts['header'] = {'dev-name': cfg.ifname}
+    try:
+        res = cfg.ethnl.tsconfig_set(ts)
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("timestamping configuration is not supported via netlink") from e
+        raise
+    return res
+
+
+def test_hwtstamp_tx(cfg):
+    """
+    Test TX timestamp configuration.
+    The driver should apply provided config and report back proper state.
+    """
+
+    orig_tscfg = __get_hwtimestamp_config(cfg)
+    ts = __get_hwtimestamp_support(cfg)
+    tx = ts['tx']
+    for t in tx:
+        tscfg = orig_tscfg
+        tscfg['tx-types']['bits']['bit'] = [t]
+        res = __set_hwtimestamp_config(cfg, tscfg)
+        if res is None:
+            res = __get_hwtimestamp_config(cfg)
+        ksft_eq(res['tx-types']['bits']['bit'], [t])
+    __set_hwtimestamp_config(cfg, orig_tscfg)
+
+
+def test_hwtstamp_rx(cfg):
+    """
+    Test RX timestamp configuration.
+    The filter configuration is taken from the list of supported filters.
+    The driver should apply the config without error and report back proper state.
+    Some extension of the timestamping scope is allowed for PTP filters.
+    """
+
+    orig_tscfg = __get_hwtimestamp_config(cfg)
+    ts = __get_hwtimestamp_support(cfg)
+    rx = ts['rx']
+    for r in rx:
+        tscfg = orig_tscfg
+        tscfg['rx-filters']['bits']['bit'] = [r]
+        res = __set_hwtimestamp_config(cfg, tscfg)
+        if res is None:
+            res = __get_hwtimestamp_config(cfg)
+        if r['index'] == 0 or r['index'] == 1:
+            ksft_eq(res['rx-filters']['bits']['bit'][0]['index'], r['index'])
+        else:
+            # the driver can fallback to some value which has higher coverage for timestamping
+            ksft_ge(res['rx-filters']['bits']['bit'][0]['index'], r['index'])
+    __set_hwtimestamp_config(cfg, orig_tscfg)
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEnv(__file__, nsim_test=False) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        ksft_run([test_hwtstamp_tx, test_hwtstamp_rx], args=(cfg,))
+        ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/pp_alloc_fail.py b/tools/testing/selftests/drivers/net/hw/pp_alloc_fail.py
new file mode 100755
index 000000000000..2a51b60df8a1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/pp_alloc_fail.py
@@ -0,0 +1,144 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Test driver resilience vs page pool allocation failures.
+"""
+
+import errno
+import time
+import math
+import os
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import NetdevFamily, NlError
+from lib.py import NetDrvEpEnv
+from lib.py import cmd, tool, GenerateTraffic
+
+
+def _write_fail_config(config):
+    for key, value in config.items():
+        path = "/sys/kernel/debug/fail_function/"
+        with open(path + key, "w", encoding='ascii') as fp:
+            fp.write(str(value) + "\n")
+
+
+def _enable_pp_allocation_fail():
+    if not os.path.exists("/sys/kernel/debug/fail_function"):
+        raise KsftSkipEx("Kernel built without function error injection (or DebugFS)")
+
+    if not os.path.exists("/sys/kernel/debug/fail_function/page_pool_alloc_netmems"):
+        _write_fail_config({"inject": "page_pool_alloc_netmems"})
+
+    _write_fail_config({
+        "verbose": 0,
+        "interval": 511,
+        "probability": 100,
+        "times": -1,
+    })
+
+
+def _disable_pp_allocation_fail():
+    if not os.path.exists("/sys/kernel/debug/fail_function"):
+        return
+
+    if os.path.exists("/sys/kernel/debug/fail_function/page_pool_alloc_netmems"):
+        _write_fail_config({"inject": ""})
+
+    _write_fail_config({
+        "probability": 0,
+        "times": 0,
+    })
+
+
+def test_pp_alloc(cfg, netdevnl):
+    """
+    Configure page pool allocation fail injection while traffic is running.
+    """
+
+    def get_stats():
+        return netdevnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+
+    def check_traffic_flowing():
+        stat1 = get_stats()
+        time.sleep(1)
+        stat2 = get_stats()
+        if stat2['rx-packets'] - stat1['rx-packets'] < 4000:
+            raise KsftFailEx("Traffic seems low:", stat2['rx-packets'] - stat1['rx-packets'])
+
+
+    try:
+        stats = get_stats()
+    except NlError as e:
+        if e.nl_msg.error == -errno.EOPNOTSUPP:
+            stats = {}
+        else:
+            raise
+    if 'rx-alloc-fail' not in stats:
+        raise KsftSkipEx("Driver does not report 'rx-alloc-fail' via qstats")
+
+    set_g = False
+    traffic = None
+    try:
+        traffic = GenerateTraffic(cfg)
+
+        check_traffic_flowing()
+
+        _enable_pp_allocation_fail()
+
+        s1 = get_stats()
+        time.sleep(3)
+        s2 = get_stats()
+
+        seen_fails = s2['rx-alloc-fail'] - s1['rx-alloc-fail']
+        if seen_fails < 1:
+            raise KsftSkipEx("Allocation failures not increasing")
+        pkts = s2['rx-packets'] - s1['rx-packets']
+        # Expecting one failure per 512 buffers, 3.1x safety margin
+        want_fails = math.floor(pkts / 512 / 3.1)
+        if seen_fails < want_fails:
+            raise KsftSkipEx("Allocation increasing too slowly", seen_fails,
+                             "packets:", pkts)
+        ksft_pr(f"Seen: pkts:{pkts} fails:{seen_fails} (pass thrs:{want_fails})")
+
+        # Basic failures are fine, try to wobble some settings to catch extra failures
+        check_traffic_flowing()
+        g = tool("ethtool", "-g " + cfg.ifname, json=True)[0]
+        if 'rx' in g and g["rx"] * 2 <= g["rx-max"]:
+            new_g = g['rx'] * 2
+        elif 'rx' in g:
+            new_g = g['rx'] // 2
+        else:
+            new_g = None
+
+        if new_g:
+            set_g = cmd(f"ethtool -G {cfg.ifname} rx {new_g}", fail=False).ret == 0
+            if set_g:
+                ksft_pr("ethtool -G change retval: success")
+            else:
+                ksft_pr("ethtool -G change retval: did not succeed", new_g)
+        else:
+            ksft_pr("ethtool -G change retval: did not try")
+
+        time.sleep(0.1)
+        check_traffic_flowing()
+    finally:
+        _disable_pp_allocation_fail()
+        if traffic:
+            traffic.stop()
+        time.sleep(0.1)
+        if set_g:
+            cmd(f"ethtool -G {cfg.ifname} rx {g['rx']}")
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+    netdevnl = NetdevFamily()
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+
+        ksft_run([test_pp_alloc], args=(cfg, netdevnl, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/rss_api.py b/tools/testing/selftests/drivers/net/hw/rss_api.py
new file mode 100755
index 000000000000..19847f3d4a00
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/rss_api.py
@@ -0,0 +1,476 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+API level tests for RSS (mostly Netlink vs IOCTL).
+"""
+
+import errno
+import glob
+import random
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_is, ksft_ne, ksft_raises
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import defer, ethtool, CmdExitFailure
+from lib.py import EthtoolFamily, NlError
+from lib.py import NetDrvEnv
+
+
+def _require_2qs(cfg):
+    qcnt = len(glob.glob(f"/sys/class/net/{cfg.ifname}/queues/rx-*"))
+    if qcnt < 2:
+        raise KsftSkipEx(f"Local has only {qcnt} queues")
+    return qcnt
+
+
+def _ethtool_create(cfg, act, opts):
+    output = ethtool(f"{act} {cfg.ifname} {opts}").stdout
+    # Output will be something like: "New RSS context is 1" or
+    # "Added rule with ID 7", we want the integer from the end
+    return int(output.split()[-1])
+
+
+def _ethtool_get_cfg(cfg, fl_type, to_nl=False):
+    descr = ethtool(f"-n {cfg.ifname} rx-flow-hash {fl_type}").stdout
+
+    if to_nl:
+        converter = {
+            "IP SA": "ip-src",
+            "IP DA": "ip-dst",
+            "L4 bytes 0 & 1 [TCP/UDP src port]": "l4-b-0-1",
+            "L4 bytes 2 & 3 [TCP/UDP dst port]": "l4-b-2-3",
+        }
+
+        ret = set()
+    else:
+        converter = {
+            "IP SA": "s",
+            "IP DA": "d",
+            "L3 proto": "t",
+            "L4 bytes 0 & 1 [TCP/UDP src port]": "f",
+            "L4 bytes 2 & 3 [TCP/UDP dst port]": "n",
+        }
+
+        ret = ""
+
+    for line in descr.split("\n")[1:-2]:
+        # if this raises we probably need to add more keys to converter above
+        if to_nl:
+            ret.add(converter[line])
+        else:
+            ret += converter[line]
+    return ret
+
+
+def test_rxfh_nl_set_fail(cfg):
+    """
+    Test error path of Netlink SET.
+    """
+    _require_2qs(cfg)
+
+    ethnl = EthtoolFamily()
+    ethnl.ntf_subscribe("monitor")
+
+    with ksft_raises(NlError):
+        ethnl.rss_set({"header": {"dev-name": "lo"},
+                       "indir": None})
+
+    with ksft_raises(NlError):
+        ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "indir": [100000]})
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    ksft_is(ntf, None)
+
+
+def test_rxfh_nl_set_indir(cfg):
+    """
+    Test setting indirection table via Netlink.
+    """
+    qcnt = _require_2qs(cfg)
+
+    # Test some SETs with a value
+    reset = defer(cfg.ethnl.rss_set,
+                  {"header": {"dev-index": cfg.ifindex}, "indir": None})
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "indir": [1]})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(set(rss.get("indir", [-1])), {1})
+
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "indir": [0, 1]})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(set(rss.get("indir", [-1])), {0, 1})
+
+    # Make sure we can't set the queue count below max queue used
+    with ksft_raises(CmdExitFailure):
+        ethtool(f"-L {cfg.ifname} combined 0 rx 1")
+    with ksft_raises(CmdExitFailure):
+        ethtool(f"-L {cfg.ifname} combined 1 rx 0")
+
+    # Test reset back to default
+    reset.exec()
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(set(rss.get("indir", [-1])), set(range(qcnt)))
+
+
+def test_rxfh_nl_set_indir_ctx(cfg):
+    """
+    Test setting indirection table for a custom context via Netlink.
+    """
+    _require_2qs(cfg)
+
+    # Get setting for ctx 0, we'll make sure they don't get clobbered
+    dflt = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+
+    # Create context
+    ctx_id = _ethtool_create(cfg, "-X", "context new")
+    defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "context": ctx_id, "indir": [1]})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex},
+                             "context": ctx_id})
+    ksft_eq(set(rss.get("indir", [-1])), {1})
+
+    ctx0 = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(ctx0, dflt)
+
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "context": ctx_id, "indir": [0, 1]})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex},
+                             "context": ctx_id})
+    ksft_eq(set(rss.get("indir", [-1])), {0, 1})
+
+    ctx0 = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(ctx0, dflt)
+
+    # Make sure we can't set the queue count below max queue used
+    with ksft_raises(CmdExitFailure):
+        ethtool(f"-L {cfg.ifname} combined 0 rx 1")
+    with ksft_raises(CmdExitFailure):
+        ethtool(f"-L {cfg.ifname} combined 1 rx 0")
+
+
+def test_rxfh_indir_ntf(cfg):
+    """
+    Check that Netlink notifications are generated when RSS indirection
+    table was modified.
+    """
+    _require_2qs(cfg)
+
+    ethnl = EthtoolFamily()
+    ethnl.ntf_subscribe("monitor")
+
+    ethtool(f"--disable-netlink -X {cfg.ifname} weight 0 1")
+    reset = defer(ethtool, f"-X {cfg.ifname} default")
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("No notification received")
+    ksft_eq(ntf["name"], "rss-ntf")
+    ksft_eq(set(ntf["msg"]["indir"]), {1})
+
+    reset.exec()
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("No notification received after reset")
+    ksft_eq(ntf["name"], "rss-ntf")
+    ksft_is(ntf["msg"].get("context"), None)
+    ksft_ne(set(ntf["msg"]["indir"]), {1})
+
+
+def test_rxfh_indir_ctx_ntf(cfg):
+    """
+    Check that Netlink notifications are generated when RSS indirection
+    table was modified on an additional RSS context.
+    """
+    _require_2qs(cfg)
+
+    ctx_id = _ethtool_create(cfg, "-X", "context new")
+    defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    ethnl = EthtoolFamily()
+    ethnl.ntf_subscribe("monitor")
+
+    ethtool(f"--disable-netlink -X {cfg.ifname} context {ctx_id} weight 0 1")
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("No notification received")
+    ksft_eq(ntf["name"], "rss-ntf")
+    ksft_eq(ntf["msg"].get("context"), ctx_id)
+    ksft_eq(set(ntf["msg"]["indir"]), {1})
+
+
+def test_rxfh_nl_set_key(cfg):
+    """
+    Test setting hashing key via Netlink.
+    """
+
+    dflt = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    defer(cfg.ethnl.rss_set,
+          {"header": {"dev-index": cfg.ifindex},
+           "hkey": dflt["hkey"], "indir": None})
+
+    # Empty key should error out
+    with ksft_raises(NlError) as cm:
+        cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                           "hkey": None})
+    ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.hkey')
+
+    # Set key to random
+    mod = random.randbytes(len(dflt["hkey"]))
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "hkey": mod})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(rss.get("hkey", [-1]), mod)
+
+    # Set key to random and indir tbl to something at once
+    mod = random.randbytes(len(dflt["hkey"]))
+    cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                       "indir": [0, 1], "hkey": mod})
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    ksft_eq(rss.get("hkey", [-1]), mod)
+    ksft_eq(set(rss.get("indir", [-1])), {0, 1})
+
+
+def test_rxfh_fields(cfg):
+    """
+    Test reading Rx Flow Hash over Netlink.
+    """
+
+    flow_types = ["tcp4", "tcp6", "udp4", "udp6"]
+    ethnl = EthtoolFamily()
+
+    cfg_nl = ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    for fl_type in flow_types:
+        one = _ethtool_get_cfg(cfg, fl_type, to_nl=True)
+        ksft_eq(one, cfg_nl["flow-hash"][fl_type],
+                comment="Config for " + fl_type)
+
+
+def test_rxfh_fields_set(cfg):
+    """ Test configuring Rx Flow Hash over Netlink. """
+
+    flow_types = ["tcp4", "tcp6", "udp4", "udp6"]
+
+    # Collect current settings
+    cfg_old = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    # symmetric hashing is config-order-sensitive make sure we leave
+    # symmetric mode, or make the flow-hash sym-compatible first
+    changes = [{"flow-hash": cfg_old["flow-hash"],},
+               {"input-xfrm": cfg_old.get("input-xfrm", {}),}]
+    if cfg_old.get("input-xfrm"):
+        changes = list(reversed(changes))
+    for old in changes:
+        defer(cfg.ethnl.rss_set, {"header": {"dev-index": cfg.ifindex},} | old)
+
+    # symmetric hashing prevents some of the configs below
+    if cfg_old.get("input-xfrm"):
+        cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                           "input-xfrm": {}})
+
+    for fl_type in flow_types:
+        cur = _ethtool_get_cfg(cfg, fl_type)
+        if cur == "sdfn":
+            change_nl = {"ip-src", "ip-dst"}
+            change_ic = "sd"
+        else:
+            change_nl = {"l4-b-0-1", "l4-b-2-3", "ip-src", "ip-dst"}
+            change_ic = "sdfn"
+
+        cfg.ethnl.rss_set({
+            "header": {"dev-index": cfg.ifindex},
+            "flow-hash": {fl_type: change_nl}
+        })
+        reset = defer(ethtool, f"--disable-netlink -N {cfg.ifname} "
+                      f"rx-flow-hash {fl_type} {cur}")
+
+        cfg_nl = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+        ksft_eq(change_nl, cfg_nl["flow-hash"][fl_type],
+                comment=f"Config for {fl_type} over Netlink")
+        cfg_ic = _ethtool_get_cfg(cfg, fl_type)
+        ksft_eq(change_ic, cfg_ic,
+                comment=f"Config for {fl_type} over IOCTL")
+
+        reset.exec()
+        cfg_nl = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+        ksft_eq(cfg_old["flow-hash"][fl_type], cfg_nl["flow-hash"][fl_type],
+                comment=f"Un-config for {fl_type} over Netlink")
+        cfg_ic = _ethtool_get_cfg(cfg, fl_type)
+        ksft_eq(cur, cfg_ic, comment=f"Un-config for {fl_type} over IOCTL")
+
+    # Try to set multiple at once, the defer was already installed at the start
+    change = {"ip-src"}
+    if change == cfg_old["flow-hash"]["tcp4"]:
+        change = {"ip-dst"}
+    cfg.ethnl.rss_set({
+        "header": {"dev-index": cfg.ifindex},
+        "flow-hash": {x: change for x in flow_types}
+    })
+
+    cfg_nl = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    for fl_type in flow_types:
+        ksft_eq(change, cfg_nl["flow-hash"][fl_type],
+                comment=f"multi-config for {fl_type} over Netlink")
+
+
+def test_rxfh_fields_set_xfrm(cfg):
+    """ Test changing Rx Flow Hash vs xfrm_input at once.  """
+
+    def set_rss(cfg, xfrm, fh):
+        cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                           "input-xfrm": xfrm, "flow-hash": fh})
+
+    # Install the reset handler
+    cfg_old = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    # symmetric hashing is config-order-sensitive make sure we leave
+    # symmetric mode, or make the flow-hash sym-compatible first
+    changes = [{"flow-hash": cfg_old["flow-hash"],},
+               {"input-xfrm": cfg_old.get("input-xfrm", {}),}]
+    if cfg_old.get("input-xfrm"):
+        changes = list(reversed(changes))
+    for old in changes:
+        defer(cfg.ethnl.rss_set, {"header": {"dev-index": cfg.ifindex},} | old)
+
+    # Make sure we start with input-xfrm off, and tcp4 config non-sym
+    set_rss(cfg, {}, {})
+    set_rss(cfg, {}, {"tcp4": {"ip-src"}})
+
+    # Setting sym and fixing tcp4 config not expected to pass right now
+    with ksft_raises(NlError):
+        set_rss(cfg, {"sym-xor"}, {"tcp4": {"ip-src", "ip-dst"}})
+    # One at a time should work, hopefully
+    set_rss(cfg, 0, {"tcp4": {"ip-src", "ip-dst"}})
+    no_support = False
+    try:
+        set_rss(cfg, {"sym-xor"}, {})
+    except NlError:
+        try:
+            set_rss(cfg, {"sym-or-xor"}, {})
+        except NlError:
+            no_support = True
+    if no_support:
+        raise KsftSkipEx("no input-xfrm supported")
+    # Disabling two at once should not work either without kernel changes
+    with ksft_raises(NlError):
+        set_rss(cfg, {}, {"tcp4": {"ip-src"}})
+
+
+def test_rxfh_fields_ntf(cfg):
+    """ Test Rx Flow Hash notifications. """
+
+    cur = _ethtool_get_cfg(cfg, "tcp4")
+    if cur == "sdfn":
+        change = {"ip-src", "ip-dst"}
+    else:
+        change = {"l4-b-0-1", "l4-b-2-3", "ip-src", "ip-dst"}
+
+    ethnl = EthtoolFamily()
+    ethnl.ntf_subscribe("monitor")
+
+    ethnl.rss_set({
+        "header": {"dev-index": cfg.ifindex},
+        "flow-hash": {"tcp4": change}
+    })
+    reset = defer(ethtool,
+                  f"--disable-netlink -N {cfg.ifname} rx-flow-hash tcp4 {cur}")
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("No notification received after IOCTL change")
+    ksft_eq(ntf["name"], "rss-ntf")
+    ksft_eq(ntf["msg"]["flow-hash"]["tcp4"], change)
+    ksft_eq(next(ethnl.poll_ntf(duration=0.01), None), None)
+
+    reset.exec()
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("No notification received after Netlink change")
+    ksft_eq(ntf["name"], "rss-ntf")
+    ksft_ne(ntf["msg"]["flow-hash"]["tcp4"], change)
+    ksft_eq(next(ethnl.poll_ntf(duration=0.01), None), None)
+
+
+def test_rss_ctx_add(cfg):
+    """ Test creating an additional RSS context via Netlink """
+
+    _require_2qs(cfg)
+
+    # Test basic creation
+    ctx = cfg.ethnl.rss_create_act({"header": {"dev-index": cfg.ifindex}})
+    d = defer(ethtool, f"-X {cfg.ifname} context {ctx.get('context')} delete")
+    ksft_ne(ctx.get("context", 0), 0)
+    ksft_ne(set(ctx.get("indir", [0])), {0},
+            comment="Driver should init the indirection table")
+
+    # Try requesting the ID we just got allocated
+    with ksft_raises(NlError) as cm:
+        ctx = cfg.ethnl.rss_create_act({
+            "header": {"dev-index": cfg.ifindex},
+            "context": ctx.get("context"),
+        })
+        ethtool(f"-X {cfg.ifname} context {ctx.get('context')} delete")
+    d.exec()
+    ksft_eq(cm.exception.nl_msg.error, -errno.EBUSY)
+
+    # Test creating with a specified RSS table, and context ID
+    ctx_id = ctx.get("context")
+    ctx = cfg.ethnl.rss_create_act({
+        "header": {"dev-index": cfg.ifindex},
+        "context": ctx_id,
+        "indir": [1],
+    })
+    ethtool(f"-X {cfg.ifname} context {ctx.get('context')} delete")
+    ksft_eq(ctx.get("context"), ctx_id)
+    ksft_eq(set(ctx.get("indir", [0])), {1})
+
+
+def test_rss_ctx_ntf(cfg):
+    """ Test notifications for creating additional RSS contexts """
+
+    ethnl = EthtoolFamily()
+    ethnl.ntf_subscribe("monitor")
+
+    # Create / delete via Netlink
+    ctx = cfg.ethnl.rss_create_act({"header": {"dev-index": cfg.ifindex}})
+    cfg.ethnl.rss_delete_act({
+        "header": {"dev-index": cfg.ifindex},
+        "context": ctx["context"],
+    })
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("[NL] No notification after context creation")
+    ksft_eq(ntf["name"], "rss-create-ntf")
+    ksft_eq(ctx, ntf["msg"])
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("[NL] No notification after context deletion")
+    ksft_eq(ntf["name"], "rss-delete-ntf")
+
+    # Create / deleve via IOCTL
+    ctx_id = _ethtool_create(cfg, "--disable-netlink -X", "context new")
+    ethtool(f"--disable-netlink -X {cfg.ifname} context {ctx_id} delete")
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("[IOCTL] No notification after context creation")
+    ksft_eq(ntf["name"], "rss-create-ntf")
+
+    ntf = next(ethnl.poll_ntf(duration=0.2), None)
+    if ntf is None:
+        raise KsftFailEx("[IOCTL] No notification after context deletion")
+    ksft_eq(ntf["name"], "rss-delete-ntf")
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEnv(__file__, nsim_test=False) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        ksft_run(globs=globals(), case_pfx={"test_"}, args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/rss_ctx.py b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
new file mode 100755
index 000000000000..ed7e405682f0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/rss_ctx.py
@@ -0,0 +1,832 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import datetime
+import random
+import re
+from lib.py import ksft_run, ksft_pr, ksft_exit
+from lib.py import ksft_eq, ksft_ne, ksft_ge, ksft_in, ksft_lt, ksft_true, ksft_raises
+from lib.py import NetDrvEpEnv
+from lib.py import EthtoolFamily, NetdevFamily
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import rand_port
+from lib.py import ethtool, ip, defer, GenerateTraffic, CmdExitFailure
+
+
+def _rss_key_str(key):
+    return ":".join(["{:02x}".format(x) for x in key])
+
+
+def _rss_key_rand(length):
+    return [random.randint(0, 255) for _ in range(length)]
+
+
+def _rss_key_check(cfg, data=None, context=0):
+    if data is None:
+        data = get_rss(cfg, context=context)
+    if 'rss-hash-key' not in data:
+        return
+    non_zero = [x for x in data['rss-hash-key'] if x != 0]
+    ksft_eq(bool(non_zero), True, comment=f"RSS key is all zero {data['rss-hash-key']}")
+
+
+def get_rss(cfg, context=0):
+    return ethtool(f"-x {cfg.ifname} context {context}", json=True)[0]
+
+
+def get_drop_err_sum(cfg):
+    stats = ip("-s -s link show dev " + cfg.ifname, json=True)[0]
+    cnt = 0
+    for key in ['errors', 'dropped', 'over_errors', 'fifo_errors',
+                'length_errors', 'crc_errors', 'missed_errors',
+                'frame_errors']:
+        cnt += stats["stats64"]["rx"][key]
+    return cnt, stats["stats64"]["tx"]["carrier_changes"]
+
+
+def ethtool_create(cfg, act, opts):
+    output = ethtool(f"{act} {cfg.ifname} {opts}").stdout
+    # Output will be something like: "New RSS context is 1" or
+    # "Added rule with ID 7", we want the integer from the end
+    return int(output.split()[-1])
+
+
+def require_ntuple(cfg):
+    features = ethtool(f"-k {cfg.ifname}", json=True)[0]
+    if not features["ntuple-filters"]["active"]:
+        # ntuple is more of a capability than a config knob, don't bother
+        # trying to enable it (until some driver actually needs it).
+        raise KsftSkipEx("Ntuple filters not enabled on the device: " + str(features["ntuple-filters"]))
+
+
+def require_context_cnt(cfg, need_cnt):
+    # There's no good API to get the context count, so the tests
+    # which try to add a lot opportunisitically set the count they
+    # discovered. Careful with test ordering!
+    if need_cnt and cfg.context_cnt and cfg.context_cnt < need_cnt:
+        raise KsftSkipEx(f"Test requires at least {need_cnt} contexts, but device only has {cfg.context_cnt}")
+
+
+# Get Rx packet counts for all queues, as a simple list of integers
+# if @prev is specified the prev counts will be subtracted
+def _get_rx_cnts(cfg, prev=None):
+    cfg.wait_hw_stats_settle()
+    data = cfg.netdevnl.qstats_get({"ifindex": cfg.ifindex, "scope": ["queue"]}, dump=True)
+    data = [x for x in data if x['queue-type'] == "rx"]
+    max_q = max([x["queue-id"] for x in data])
+    queue_stats = [0] * (max_q + 1)
+    for q in data:
+        queue_stats[q["queue-id"]] = q["rx-packets"]
+        if prev and q["queue-id"] < len(prev):
+            queue_stats[q["queue-id"]] -= prev[q["queue-id"]]
+    return queue_stats
+
+
+def _send_traffic_check(cfg, port, name, params):
+    # params is a dict with 3 possible keys:
+    #  - "target": required, which queues we expect to get iperf traffic
+    #  - "empty": optional, which queues should see no traffic at all
+    #  - "noise": optional, which queues we expect to see low traffic;
+    #             used for queues of the main context, since some background
+    #             OS activity may use those queues while we're testing
+    # the value for each is a list, or some other iterable containing queue ids.
+
+    cnts = _get_rx_cnts(cfg)
+    GenerateTraffic(cfg, port=port).wait_pkts_and_stop(20000)
+    cnts = _get_rx_cnts(cfg, prev=cnts)
+
+    directed = sum(cnts[i] for i in params['target'])
+
+    ksft_ge(directed, 20000, f"traffic on {name}: " + str(cnts))
+    if params.get('noise'):
+        ksft_lt(sum(cnts[i] for i in params['noise']), directed / 2,
+                f"traffic on other queues ({name})':" + str(cnts))
+    if params.get('empty'):
+        ksft_eq(sum(cnts[i] for i in params['empty']), 0,
+                f"traffic on inactive queues ({name}): " + str(cnts))
+
+
+def _ntuple_rule_check(cfg, rule_id, ctx_id):
+    """Check that ntuple rule references RSS context ID"""
+    text = ethtool(f"-n {cfg.ifname} rule {rule_id}").stdout
+    pattern = f"RSS Context (ID: )?{ctx_id}"
+    ksft_true(re.search(pattern, text), "RSS context not referenced in ntuple rule")
+
+
+def test_rss_key_indir(cfg):
+    """Test basics like updating the main RSS key and indirection table."""
+
+    qcnt = len(_get_rx_cnts(cfg))
+    if qcnt < 3:
+        raise KsftSkipEx("Device has fewer than 3 queues (or doesn't support queue stats)")
+
+    data = get_rss(cfg)
+    want_keys = ['rss-hash-key', 'rss-hash-function', 'rss-indirection-table']
+    for k in want_keys:
+        if k not in data:
+            raise KsftFailEx("ethtool results missing key: " + k)
+        if not data[k]:
+            raise KsftFailEx(f"ethtool results empty for '{k}': {data[k]}")
+
+    _rss_key_check(cfg, data=data)
+    key_len = len(data['rss-hash-key'])
+
+    # Set the key
+    key = _rss_key_rand(key_len)
+    ethtool(f"-X {cfg.ifname} hkey " + _rss_key_str(key))
+
+    data = get_rss(cfg)
+    ksft_eq(key, data['rss-hash-key'])
+
+    # Set the indirection table and the key together
+    key = _rss_key_rand(key_len)
+    ethtool(f"-X {cfg.ifname} equal 3 hkey " + _rss_key_str(key))
+    reset_indir = defer(ethtool, f"-X {cfg.ifname} default")
+
+    data = get_rss(cfg)
+    _rss_key_check(cfg, data=data)
+    ksft_eq(0, min(data['rss-indirection-table']))
+    ksft_eq(2, max(data['rss-indirection-table']))
+
+    # Reset indirection table and set the key
+    key = _rss_key_rand(key_len)
+    ethtool(f"-X {cfg.ifname} default hkey " + _rss_key_str(key))
+    data = get_rss(cfg)
+    _rss_key_check(cfg, data=data)
+    ksft_eq(0, min(data['rss-indirection-table']))
+    ksft_eq(qcnt - 1, max(data['rss-indirection-table']))
+
+    # Set the indirection table
+    ethtool(f"-X {cfg.ifname} equal 2")
+    data = get_rss(cfg)
+    ksft_eq(0, min(data['rss-indirection-table']))
+    ksft_eq(1, max(data['rss-indirection-table']))
+
+    # Check we only get traffic on the first 2 queues
+    cnts = _get_rx_cnts(cfg)
+    GenerateTraffic(cfg).wait_pkts_and_stop(20000)
+    cnts = _get_rx_cnts(cfg, prev=cnts)
+    # 2 queues, 20k packets, must be at least 5k per queue
+    ksft_ge(cnts[0], 5000, "traffic on main context (1/2): " + str(cnts))
+    ksft_ge(cnts[1], 5000, "traffic on main context (2/2): " + str(cnts))
+    # The other queues should be unused
+    ksft_eq(sum(cnts[2:]), 0, "traffic on unused queues: " + str(cnts))
+
+    # Restore, and check traffic gets spread again
+    reset_indir.exec()
+
+    cnts = _get_rx_cnts(cfg)
+    GenerateTraffic(cfg).wait_pkts_and_stop(20000)
+    cnts = _get_rx_cnts(cfg, prev=cnts)
+    if qcnt > 4:
+        # First two queues get less traffic than all the rest
+        ksft_lt(sum(cnts[:2]), sum(cnts[2:]),
+                "traffic distributed: " + str(cnts))
+    else:
+        # When queue count is low make sure third queue got significant pkts
+        ksft_ge(cnts[2], 3500, "traffic distributed: " + str(cnts))
+
+
+def test_rss_queue_reconfigure(cfg, main_ctx=True):
+    """Make sure queue changes can't override requested RSS config.
+
+    By default main RSS table should change to include all queues.
+    When user sets a specific RSS config the driver should preserve it,
+    even when queue count changes. Driver should refuse to deactivate
+    queues used in the user-set RSS config.
+    """
+
+    if not main_ctx:
+        require_ntuple(cfg)
+
+    # Start with 4 queues, an arbitrary known number.
+    try:
+        qcnt = len(_get_rx_cnts(cfg))
+        ethtool(f"-L {cfg.ifname} combined 4")
+        defer(ethtool, f"-L {cfg.ifname} combined {qcnt}")
+    except:
+        raise KsftSkipEx("Not enough queues for the test or qstat not supported")
+
+    if main_ctx:
+        ctx_id = 0
+        ctx_ref = ""
+    else:
+        ctx_id = ethtool_create(cfg, "-X", "context new")
+        ctx_ref = f"context {ctx_id}"
+        defer(ethtool, f"-X {cfg.ifname} {ctx_ref} delete")
+
+    # Indirection table should be distributing to all queues.
+    data = get_rss(cfg, context=ctx_id)
+    ksft_eq(0, min(data['rss-indirection-table']))
+    ksft_eq(3, max(data['rss-indirection-table']))
+
+    # Increase queues, indirection table should be distributing to all queues.
+    # It's unclear whether tables of additional contexts should be reset, too.
+    if main_ctx:
+        ethtool(f"-L {cfg.ifname} combined 5")
+        data = get_rss(cfg)
+        ksft_eq(0, min(data['rss-indirection-table']))
+        ksft_eq(4, max(data['rss-indirection-table']))
+        ethtool(f"-L {cfg.ifname} combined 4")
+
+    # Configure the table explicitly
+    port = rand_port()
+    ethtool(f"-X {cfg.ifname} {ctx_ref} weight 1 0 0 1")
+    if main_ctx:
+        other_key = 'empty'
+        defer(ethtool, f"-X {cfg.ifname} default")
+    else:
+        other_key = 'noise'
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {ctx_id}"
+        ntuple = ethtool_create(cfg, "-N", flow)
+        defer(ethtool, f"-N {cfg.ifname} delete {ntuple}")
+
+    _send_traffic_check(cfg, port, ctx_ref, { 'target': (0, 3),
+                                              other_key: (1, 2) })
+
+    # We should be able to increase queues, but table should be left untouched
+    ethtool(f"-L {cfg.ifname} combined 5")
+    data = get_rss(cfg, context=ctx_id)
+    ksft_eq({0, 3}, set(data['rss-indirection-table']))
+
+    _send_traffic_check(cfg, port, ctx_ref, { 'target': (0, 3),
+                                              other_key: (1, 2, 4) })
+
+    # Setting queue count to 3 should fail, queue 3 is used
+    try:
+        ethtool(f"-L {cfg.ifname} combined 3")
+    except CmdExitFailure:
+        pass
+    else:
+        raise Exception(f"Driver didn't prevent us from deactivating a used queue (context {ctx_id})")
+
+    if not main_ctx:
+        ethtool(f"-L {cfg.ifname} combined 4")
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {ctx_id} action 1"
+        try:
+            # this targets queue 4, which doesn't exist
+            ntuple2 = ethtool_create(cfg, "-N", flow)
+            defer(ethtool, f"-N {cfg.ifname} delete {ntuple2}")
+        except CmdExitFailure:
+            pass
+        else:
+            raise Exception(f"Driver didn't prevent us from targeting a nonexistent queue (context {ctx_id})")
+        # change the table to target queues 0 and 2
+        ethtool(f"-X {cfg.ifname} {ctx_ref} weight 1 0 1 0")
+        # ntuple rule therefore targets queues 1 and 3
+        try:
+            ntuple2 = ethtool_create(cfg, "-N", flow)
+        except CmdExitFailure:
+            ksft_pr("Driver does not support rss + queue offset")
+            return
+
+        defer(ethtool, f"-N {cfg.ifname} delete {ntuple2}")
+        # should replace existing filter
+        ksft_eq(ntuple, ntuple2)
+        _send_traffic_check(cfg, port, ctx_ref, { 'target': (1, 3),
+                                                  'noise' : (0, 2) })
+        # Setting queue count to 3 should fail, queue 3 is used
+        try:
+            ethtool(f"-L {cfg.ifname} combined 3")
+        except CmdExitFailure:
+            pass
+        else:
+            raise Exception(f"Driver didn't prevent us from deactivating a used queue (context {ctx_id})")
+
+
+def test_rss_resize(cfg):
+    """Test resizing of the RSS table.
+
+    Some devices dynamically increase and decrease the size of the RSS
+    indirection table based on the number of enabled queues.
+    When that happens driver must maintain the balance of entries
+    (preferably duplicating the smaller table).
+    """
+
+    channels = cfg.ethnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+    ch_max = channels['combined-max']
+    qcnt = channels['combined-count']
+
+    if ch_max < 2:
+        raise KsftSkipEx(f"Not enough queues for the test: {ch_max}")
+
+    ethtool(f"-L {cfg.ifname} combined 2")
+    defer(ethtool, f"-L {cfg.ifname} combined {qcnt}")
+
+    ethtool(f"-X {cfg.ifname} weight 1 7")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    ethtool(f"-L {cfg.ifname} combined {ch_max}")
+    data = get_rss(cfg)
+    ksft_eq(0, min(data['rss-indirection-table']))
+    ksft_eq(1, max(data['rss-indirection-table']))
+
+    ksft_eq(7,
+            data['rss-indirection-table'].count(1) /
+            data['rss-indirection-table'].count(0),
+            f"Table imbalance after resize: {data['rss-indirection-table']}")
+
+
+def test_hitless_key_update(cfg):
+    """Test that flows may be rehashed without impacting traffic.
+
+    Some workloads may want to rehash the flows in response to an imbalance.
+    Most effective way to do that is changing the RSS key. Check that changing
+    the key does not cause link flaps or traffic disruption.
+
+    Disrupting traffic for key update is not a bug, but makes the key
+    update unusable for rehashing under load.
+    """
+    data = get_rss(cfg)
+    key_len = len(data['rss-hash-key'])
+
+    ethnl = EthtoolFamily()
+    key = random.randbytes(key_len)
+
+    tgen = GenerateTraffic(cfg)
+    try:
+        errors0, carrier0 = get_drop_err_sum(cfg)
+        t0 = datetime.datetime.now()
+        ethnl.rss_set({"header": {"dev-index": cfg.ifindex}, "hkey": key})
+        t1 = datetime.datetime.now()
+        errors1, carrier1 = get_drop_err_sum(cfg)
+    finally:
+        tgen.wait_pkts_and_stop(5000)
+
+    ksft_lt((t1 - t0).total_seconds(), 0.15)
+    ksft_eq(errors1 - errors1, 0)
+    ksft_eq(carrier1 - carrier0, 0)
+
+
+def test_rss_context_dump(cfg):
+    """
+    Test dumping RSS contexts. This tests mostly exercises the kernel APIs.
+    """
+
+    # Get a random key of the right size
+    data = get_rss(cfg)
+    if 'rss-hash-key' in data:
+        key_data = _rss_key_rand(len(data['rss-hash-key']))
+        key = _rss_key_str(key_data)
+    else:
+        key_data = []
+        key = "ba:ad"
+
+    ids = []
+    try:
+        ids.append(ethtool_create(cfg, "-X", f"context new"))
+        defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+
+        ids.append(ethtool_create(cfg, "-X", f"context new weight 1 1"))
+        defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+
+        ids.append(ethtool_create(cfg, "-X", f"context new hkey {key}"))
+        defer(ethtool, f"-X {cfg.ifname} context {ids[-1]} delete")
+    except CmdExitFailure:
+        if not ids:
+            raise KsftSkipEx("Unable to add any contexts")
+        ksft_pr(f"Added only {len(ids)} out of 3 contexts")
+
+    expect_tuples = set([(cfg.ifname, -1)] + [(cfg.ifname, ctx_id) for ctx_id in ids])
+
+    # Dump all
+    ctxs = cfg.ethnl.rss_get({}, dump=True)
+    tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+    ksft_eq(len(tuples), len(set(tuples)), "duplicates in context dump")
+    ctx_tuples = set([ctx for ctx in tuples if ctx[0] == cfg.ifname])
+    ksft_eq(expect_tuples, ctx_tuples)
+
+    # Sanity-check the results
+    for data in ctxs:
+        ksft_ne(set(data.get('indir', [1])), {0}, "indir table is all zero")
+        ksft_ne(set(data.get('hkey', [1])), {0}, "key is all zero")
+
+        # More specific checks
+        if len(ids) > 1 and data.get('context') == ids[1]:
+            ksft_eq(set(data['indir']), {0, 1},
+                    "ctx1 - indir table mismatch")
+        if len(ids) > 2 and data.get('context') == ids[2]:
+            ksft_eq(data['hkey'], bytes(key_data), "ctx2 - key mismatch")
+
+    # Ifindex filter
+    ctxs = cfg.ethnl.rss_get({'header': {'dev-name': cfg.ifname}}, dump=True)
+    tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+    ctx_tuples = set(tuples)
+    ksft_eq(len(tuples), len(ctx_tuples), "duplicates in context dump")
+    ksft_eq(expect_tuples, ctx_tuples)
+
+    # Skip ctx 0
+    expect_tuples.remove((cfg.ifname, -1))
+
+    ctxs = cfg.ethnl.rss_get({'start-context': 1}, dump=True)
+    tuples = [(c['header']['dev-name'], c.get('context', -1)) for c in ctxs]
+    ksft_eq(len(tuples), len(set(tuples)), "duplicates in context dump")
+    ctx_tuples = set([ctx for ctx in tuples if ctx[0] == cfg.ifname])
+    ksft_eq(expect_tuples, ctx_tuples)
+
+    # And finally both with ifindex and skip main
+    ctxs = cfg.ethnl.rss_get({'header': {'dev-name': cfg.ifname}, 'start-context': 1}, dump=True)
+    ctx_tuples = set([(c['header']['dev-name'], c.get('context', -1)) for c in ctxs])
+    ksft_eq(expect_tuples, ctx_tuples)
+
+
+def test_rss_context(cfg, ctx_cnt=1, create_with_cfg=None):
+    """
+    Test separating traffic into RSS contexts.
+    The queues will be allocated 2 for each context:
+     ctx0  ctx1  ctx2  ctx3
+    [0 1] [2 3] [4 5] [6 7] ...
+    """
+
+    require_ntuple(cfg)
+
+    requested_ctx_cnt = ctx_cnt
+
+    # Try to allocate more queues when necessary
+    qcnt = len(_get_rx_cnts(cfg))
+    if qcnt < 2 + 2 * ctx_cnt:
+        try:
+            ksft_pr(f"Increasing queue count {qcnt} -> {2 + 2 * ctx_cnt}")
+            ethtool(f"-L {cfg.ifname} combined {2 + 2 * ctx_cnt}")
+            defer(ethtool, f"-L {cfg.ifname} combined {qcnt}")
+        except:
+            raise KsftSkipEx("Not enough queues for the test")
+
+    ports = []
+
+    # Use queues 0 and 1 for normal traffic
+    ethtool(f"-X {cfg.ifname} equal 2")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    for i in range(ctx_cnt):
+        want_cfg = f"start {2 + i * 2} equal 2"
+        create_cfg = want_cfg if create_with_cfg else ""
+
+        try:
+            ctx_id = ethtool_create(cfg, "-X", f"context new {create_cfg}")
+            defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+        except CmdExitFailure:
+            # try to carry on and skip at the end
+            if i == 0:
+                raise
+            ksft_pr(f"Failed to create context {i + 1}, trying to test what we got")
+            ctx_cnt = i
+            if cfg.context_cnt is None:
+                cfg.context_cnt = ctx_cnt
+            break
+
+        _rss_key_check(cfg, context=ctx_id)
+
+        if not create_with_cfg:
+            ethtool(f"-X {cfg.ifname} context {ctx_id} {want_cfg}")
+            _rss_key_check(cfg, context=ctx_id)
+
+        # Sanity check the context we just created
+        data = get_rss(cfg, ctx_id)
+        ksft_eq(min(data['rss-indirection-table']), 2 + i * 2, "Unexpected context cfg: " + str(data))
+        ksft_eq(max(data['rss-indirection-table']), 2 + i * 2 + 1, "Unexpected context cfg: " + str(data))
+
+        ports.append(rand_port())
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {ports[i]} context {ctx_id}"
+        ntuple = ethtool_create(cfg, "-N", flow)
+        defer(ethtool, f"-N {cfg.ifname} delete {ntuple}")
+
+        _ntuple_rule_check(cfg, ntuple, ctx_id)
+
+    for i in range(ctx_cnt):
+        _send_traffic_check(cfg, ports[i], f"context {i}",
+                            { 'target': (2+i*2, 3+i*2),
+                              'noise': (0, 1),
+                              'empty': list(range(2, 2+i*2)) + list(range(4+i*2, 2+2*ctx_cnt)) })
+
+    if requested_ctx_cnt != ctx_cnt:
+        raise KsftSkipEx(f"Tested only {ctx_cnt} contexts, wanted {requested_ctx_cnt}")
+
+
+def test_rss_context4(cfg):
+    test_rss_context(cfg, 4)
+
+
+def test_rss_context32(cfg):
+    test_rss_context(cfg, 32)
+
+
+def test_rss_context4_create_with_cfg(cfg):
+    test_rss_context(cfg, 4, create_with_cfg=True)
+
+
+def test_rss_context_queue_reconfigure(cfg):
+    test_rss_queue_reconfigure(cfg, main_ctx=False)
+
+
+def test_rss_context_out_of_order(cfg, ctx_cnt=4):
+    """
+    Test separating traffic into RSS contexts.
+    Contexts are removed in semi-random order, and steering re-tested
+    to make sure removal doesn't break steering to surviving contexts.
+    Test requires 3 contexts to work.
+    """
+
+    require_ntuple(cfg)
+    require_context_cnt(cfg, 4)
+
+    # Try to allocate more queues when necessary
+    qcnt = len(_get_rx_cnts(cfg))
+    if qcnt < 2 + 2 * ctx_cnt:
+        try:
+            ksft_pr(f"Increasing queue count {qcnt} -> {2 + 2 * ctx_cnt}")
+            ethtool(f"-L {cfg.ifname} combined {2 + 2 * ctx_cnt}")
+            defer(ethtool, f"-L {cfg.ifname} combined {qcnt}")
+        except:
+            raise KsftSkipEx("Not enough queues for the test")
+
+    ntuple = []
+    ctx = []
+    ports = []
+
+    def remove_ctx(idx):
+        ntuple[idx].exec()
+        ntuple[idx] = None
+        ctx[idx].exec()
+        ctx[idx] = None
+
+    def check_traffic():
+        for i in range(ctx_cnt):
+            if ctx[i]:
+                expected = {
+                    'target': (2+i*2, 3+i*2),
+                    'noise': (0, 1),
+                    'empty': list(range(2, 2+i*2)) + list(range(4+i*2, 2+2*ctx_cnt))
+                }
+            else:
+                expected = {
+                    'target': (0, 1),
+                    'empty':  range(2, 2+2*ctx_cnt)
+                }
+
+            _send_traffic_check(cfg, ports[i], f"context {i}", expected)
+
+    # Use queues 0 and 1 for normal traffic
+    ethtool(f"-X {cfg.ifname} equal 2")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    for i in range(ctx_cnt):
+        ctx_id = ethtool_create(cfg, "-X", f"context new start {2 + i * 2} equal 2")
+        ctx.append(defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete"))
+
+        ports.append(rand_port())
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {ports[i]} context {ctx_id}"
+        ntuple_id = ethtool_create(cfg, "-N", flow)
+        ntuple.append(defer(ethtool, f"-N {cfg.ifname} delete {ntuple_id}"))
+
+    check_traffic()
+
+    # Remove middle context
+    remove_ctx(ctx_cnt // 2)
+    check_traffic()
+
+    # Remove first context
+    remove_ctx(0)
+    check_traffic()
+
+    # Remove last context
+    remove_ctx(-1)
+    check_traffic()
+
+
+def test_rss_context_overlap(cfg, other_ctx=0):
+    """
+    Test contexts overlapping with each other.
+    Use 4 queues for the main context, but only queues 2 and 3 for context 1.
+    """
+
+    require_ntuple(cfg)
+    if other_ctx:
+        require_context_cnt(cfg, 2)
+
+    queue_cnt = len(_get_rx_cnts(cfg))
+    if queue_cnt < 4:
+        try:
+            ksft_pr(f"Increasing queue count {queue_cnt} -> 4")
+            ethtool(f"-L {cfg.ifname} combined 4")
+            defer(ethtool, f"-L {cfg.ifname} combined {queue_cnt}")
+        except:
+            raise KsftSkipEx("Not enough queues for the test")
+
+    if other_ctx == 0:
+        ethtool(f"-X {cfg.ifname} equal 4")
+        defer(ethtool, f"-X {cfg.ifname} default")
+    else:
+        other_ctx = ethtool_create(cfg, "-X", "context new")
+        ethtool(f"-X {cfg.ifname} context {other_ctx} equal 4")
+        defer(ethtool, f"-X {cfg.ifname} context {other_ctx} delete")
+
+    ctx_id = ethtool_create(cfg, "-X", "context new")
+    ethtool(f"-X {cfg.ifname} context {ctx_id} start 2 equal 2")
+    defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    port = rand_port()
+    if other_ctx:
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {other_ctx}"
+        ntuple_id = ethtool_create(cfg, "-N", flow)
+        ntuple = defer(ethtool, f"-N {cfg.ifname} delete {ntuple_id}")
+
+    # Test the main context
+    cnts = _get_rx_cnts(cfg)
+    GenerateTraffic(cfg, port=port).wait_pkts_and_stop(20000)
+    cnts = _get_rx_cnts(cfg, prev=cnts)
+
+    ksft_ge(sum(cnts[ :4]), 20000, "traffic on main context: " + str(cnts))
+    ksft_ge(sum(cnts[ :2]),  7000, "traffic on main context (1/2): " + str(cnts))
+    ksft_ge(sum(cnts[2:4]),  7000, "traffic on main context (2/2): " + str(cnts))
+    if other_ctx == 0:
+        ksft_eq(sum(cnts[4: ]),     0, "traffic on other queues: " + str(cnts))
+
+    # Now create a rule for context 1 and make sure traffic goes to a subset
+    if other_ctx:
+        ntuple.exec()
+    flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {ctx_id}"
+    ntuple_id = ethtool_create(cfg, "-N", flow)
+    defer(ethtool, f"-N {cfg.ifname} delete {ntuple_id}")
+
+    cnts = _get_rx_cnts(cfg)
+    GenerateTraffic(cfg, port=port).wait_pkts_and_stop(20000)
+    cnts = _get_rx_cnts(cfg, prev=cnts)
+
+    directed = sum(cnts[2:4])
+    ksft_lt(sum(cnts[ :2]), directed / 2, "traffic on main context: " + str(cnts))
+    ksft_ge(directed, 20000, "traffic on extra context: " + str(cnts))
+    if other_ctx == 0:
+        ksft_eq(sum(cnts[4: ]),     0, "traffic on other queues: " + str(cnts))
+
+
+def test_rss_context_overlap2(cfg):
+    test_rss_context_overlap(cfg, True)
+
+
+def test_flow_add_context_missing(cfg):
+    """
+    Test that we are not allowed to add a rule pointing to an RSS context
+    which was never created.
+    """
+
+    require_ntuple(cfg)
+
+    # Find a context which doesn't exist
+    for ctx_id in range(1, 100):
+        try:
+            get_rss(cfg, context=ctx_id)
+        except CmdExitFailure:
+            break
+
+    with ksft_raises(CmdExitFailure) as cm:
+        flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port 1234 context {ctx_id}"
+        ntuple_id = ethtool_create(cfg, "-N", flow)
+        ethtool(f"-N {cfg.ifname} delete {ntuple_id}")
+    if cm.exception:
+        ksft_in('Invalid argument', cm.exception.cmd.stderr)
+
+
+def test_delete_rss_context_busy(cfg):
+    """
+    Test that deletion returns -EBUSY when an rss context is being used
+    by an ntuple filter.
+    """
+
+    require_ntuple(cfg)
+
+    # create additional rss context
+    ctx_id = ethtool_create(cfg, "-X", "context new")
+    ctx_deleter = defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    # utilize context from ntuple filter
+    port = rand_port()
+    flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {ctx_id}"
+    ntuple_id = ethtool_create(cfg, "-N", flow)
+    defer(ethtool, f"-N {cfg.ifname} delete {ntuple_id}")
+
+    # attempt to delete in-use context
+    try:
+        ctx_deleter.exec_only()
+        ctx_deleter.cancel()
+        raise KsftFailEx(f"deleted context {ctx_id} used by rule {ntuple_id}")
+    except CmdExitFailure:
+        pass
+
+
+def test_rss_ntuple_addition(cfg):
+    """
+    Test that the queue offset (ring_cookie) of an ntuple rule is added
+    to the queue number read from the indirection table.
+    """
+
+    require_ntuple(cfg)
+
+    queue_cnt = len(_get_rx_cnts(cfg))
+    if queue_cnt < 4:
+        try:
+            ksft_pr(f"Increasing queue count {queue_cnt} -> 4")
+            ethtool(f"-L {cfg.ifname} combined 4")
+            defer(ethtool, f"-L {cfg.ifname} combined {queue_cnt}")
+        except:
+            raise KsftSkipEx("Not enough queues for the test")
+
+    # Use queue 0 for normal traffic
+    ethtool(f"-X {cfg.ifname} equal 1")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    # create additional rss context
+    ctx_id = ethtool_create(cfg, "-X", "context new equal 2")
+    defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    # utilize context from ntuple filter
+    port = rand_port()
+    flow = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port} context {ctx_id} action 2"
+    try:
+        ntuple_id = ethtool_create(cfg, "-N", flow)
+    except CmdExitFailure:
+        raise KsftSkipEx("Ntuple filter with RSS and nonzero action not supported")
+    defer(ethtool, f"-N {cfg.ifname} delete {ntuple_id}")
+
+    _send_traffic_check(cfg, port, f"context {ctx_id}", { 'target': (2, 3),
+                                                          'empty' : (1,),
+                                                          'noise' : (0,) })
+
+
+def test_rss_default_context_rule(cfg):
+    """
+    Allocate a port, direct this port to context 0, then create a new RSS
+    context and steer all TCP traffic to it (context 1).  Verify that:
+      * Traffic to the specific port continues to use queues of the main
+        context (0/1).
+      * Traffic to any other TCP port is redirected to the new context
+        (queues 2/3).
+    """
+
+    require_ntuple(cfg)
+
+    queue_cnt = len(_get_rx_cnts(cfg))
+    if queue_cnt < 4:
+        try:
+            ksft_pr(f"Increasing queue count {queue_cnt} -> 4")
+            ethtool(f"-L {cfg.ifname} combined 4")
+            defer(ethtool, f"-L {cfg.ifname} combined {queue_cnt}")
+        except Exception as exc:
+            raise KsftSkipEx("Not enough queues for the test") from exc
+
+    # Use queues 0 and 1 for the main context
+    ethtool(f"-X {cfg.ifname} equal 2")
+    defer(ethtool, f"-X {cfg.ifname} default")
+
+    # Create a new RSS context that uses queues 2 and 3
+    ctx_id = ethtool_create(cfg, "-X", "context new start 2 equal 2")
+    defer(ethtool, f"-X {cfg.ifname} context {ctx_id} delete")
+
+    # Generic low-priority rule: redirect all TCP traffic to the new context.
+    # Give it an explicit higher location number (lower priority).
+    flow_generic = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} context {ctx_id} loc 1"
+    ethtool(f"-N {cfg.ifname} {flow_generic}")
+    defer(ethtool, f"-N {cfg.ifname} delete 1")
+
+    # Specific high-priority rule for a random port that should stay on context 0.
+    # Assign loc 0 so it is evaluated before the generic rule.
+    port_main = rand_port()
+    flow_main = f"flow-type tcp{cfg.addr_ipver} dst-ip {cfg.addr} dst-port {port_main} context 0 loc 0"
+    ethtool(f"-N {cfg.ifname} {flow_main}")
+    defer(ethtool, f"-N {cfg.ifname} delete 0")
+
+    _ntuple_rule_check(cfg, 1, ctx_id)
+
+    # Verify that traffic matching the specific rule still goes to queues 0/1
+    _send_traffic_check(cfg, port_main, "context 0",
+                        { 'target': (0, 1),
+                          'empty' : (2, 3) })
+
+    # And that traffic for any other port is steered to the new context
+    port_other = rand_port()
+    _send_traffic_check(cfg, port_other, f"context {ctx_id}",
+                        { 'target': (2, 3),
+                          'noise' : (0, 1) })
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        cfg.context_cnt = None
+        cfg.ethnl = EthtoolFamily()
+        cfg.netdevnl = NetdevFamily()
+
+        ksft_run([test_rss_key_indir, test_rss_queue_reconfigure,
+                  test_rss_resize, test_hitless_key_update,
+                  test_rss_context, test_rss_context4, test_rss_context32,
+                  test_rss_context_dump, test_rss_context_queue_reconfigure,
+                  test_rss_context_overlap, test_rss_context_overlap2,
+                  test_rss_context_out_of_order, test_rss_context4_create_with_cfg,
+                  test_flow_add_context_missing,
+                  test_delete_rss_context_busy, test_rss_ntuple_addition,
+                  test_rss_default_context_rule],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/rss_flow_label.py b/tools/testing/selftests/drivers/net/hw/rss_flow_label.py
new file mode 100755
index 000000000000..6fa95fe27c47
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/rss_flow_label.py
@@ -0,0 +1,167 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Tests for RSS hashing on IPv6 Flow Label.
+"""
+
+import glob
+import os
+import socket
+from lib.py import CmdExitFailure
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_ge, ksft_in, \
+    ksft_not_in, ksft_raises, KsftSkipEx
+from lib.py import bkg, cmd, defer, fd_read_timeout, rand_port
+from lib.py import NetDrvEpEnv
+
+
+def _check_system(cfg):
+    if not hasattr(socket, "SO_INCOMING_CPU"):
+        raise KsftSkipEx("socket.SO_INCOMING_CPU was added in Python 3.11")
+
+    qcnt = len(glob.glob(f"/sys/class/net/{cfg.ifname}/queues/rx-*"))
+    if qcnt < 2:
+        raise KsftSkipEx(f"Local has only {qcnt} queues")
+
+    for f in [f"/sys/class/net/{cfg.ifname}/queues/rx-0/rps_flow_cnt",
+              f"/sys/class/net/{cfg.ifname}/queues/rx-0/rps_cpus"]:
+        try:
+            with open(f, 'r') as fp:
+                setting = fp.read().strip()
+                # CPU mask will be zeros and commas
+                if setting.replace("0", "").replace(",", ""):
+                    raise KsftSkipEx(f"RPS/RFS is configured: {f}: {setting}")
+        except FileNotFoundError:
+            pass
+
+    # 1 is the default, if someone changed it we probably shouldn"t mess with it
+    af = cmd("cat /proc/sys/net/ipv6/auto_flowlabels", host=cfg.remote).stdout
+    if af.strip() != "1":
+        raise KsftSkipEx("Remote does not have auto_flowlabels enabled")
+
+
+def _ethtool_get_cfg(cfg, fl_type):
+    descr = cmd(f"ethtool -n {cfg.ifname} rx-flow-hash {fl_type}").stdout
+
+    converter = {
+        "IP SA": "s",
+        "IP DA": "d",
+        "L3 proto": "t",
+        "L4 bytes 0 & 1 [TCP/UDP src port]": "f",
+        "L4 bytes 2 & 3 [TCP/UDP dst port]": "n",
+        "IPv6 Flow Label": "l",
+    }
+
+    ret = ""
+    for line in descr.split("\n")[1:-2]:
+        # if this raises we probably need to add more keys to converter above
+        ret += converter[line]
+    return ret
+
+
+def _traffic(cfg, one_sock, one_cpu):
+    local_port  = rand_port(socket.SOCK_DGRAM)
+    remote_port = rand_port(socket.SOCK_DGRAM)
+
+    sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+    sock.bind(("", local_port))
+    sock.connect((cfg.remote_addr_v["6"], 0))
+    if one_sock:
+        send = f"exec 5<>/dev/udp/{cfg.addr_v['6']}/{local_port}; " \
+                "for i in `seq 20`; do echo a >&5; sleep 0.02; done; exec 5>&-"
+    else:
+        send = "for i in `seq 20`; do echo a | socat -t0.02 - UDP6:" \
+              f"[{cfg.addr_v['6']}]:{local_port},sourceport={remote_port}; done"
+
+    cpus = set()
+    with bkg(send, shell=True, host=cfg.remote, exit_wait=True):
+        for _ in range(20):
+            fd_read_timeout(sock.fileno(), 1)
+            cpu = sock.getsockopt(socket.SOL_SOCKET, socket.SO_INCOMING_CPU)
+            cpus.add(cpu)
+
+    if one_cpu:
+        ksft_eq(len(cpus), 1,
+                f"{one_sock=} - expected one CPU, got traffic on: {cpus=}")
+    else:
+        ksft_ge(len(cpus), 2,
+                f"{one_sock=} - expected many CPUs, got traffic on: {cpus=}")
+
+
+def test_rss_flow_label(cfg):
+    """
+    Test hashing on IPv6 flow label. Send traffic over a single socket
+    and over multiple sockets. Depend on the remote having auto-label
+    enabled so that it randomizes the label per socket.
+    """
+
+    cfg.require_ipver("6")
+    cfg.require_cmd("socat", remote=True)
+    _check_system(cfg)
+
+    # Enable flow label hashing for UDP6
+    initial = _ethtool_get_cfg(cfg, "udp6")
+    no_lbl = initial.replace("l", "")
+    if "l" not in initial:
+        try:
+            cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 l{no_lbl}")
+        except CmdExitFailure as exc:
+            raise KsftSkipEx("Device doesn't support Flow Label for UDP6") from exc
+
+        defer(cmd, f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {initial}")
+
+    _traffic(cfg, one_sock=True, one_cpu=True)
+    _traffic(cfg, one_sock=False, one_cpu=False)
+
+    # Disable it, we should see no hashing (reset was already defer()ed)
+    cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {no_lbl}")
+
+    _traffic(cfg, one_sock=False, one_cpu=True)
+
+
+def _check_v4_flow_types(cfg):
+    for fl_type in ["tcp4", "udp4", "ah4", "esp4", "sctp4"]:
+        try:
+            cur = cmd(f"ethtool -n {cfg.ifname} rx-flow-hash {fl_type}").stdout
+            ksft_not_in("Flow Label", cur,
+                        comment=f"{fl_type=} has Flow Label:" + cur)
+        except CmdExitFailure:
+            # Probably does not support this flow type
+            pass
+
+
+def test_rss_flow_label_6only(cfg):
+    """
+    Test interactions with IPv4 flow types. It should not be possible to set
+    IPv6 Flow Label hashing for an IPv4 flow type. The Flow Label should also
+    not appear in the IPv4 "current config".
+    """
+
+    with ksft_raises(CmdExitFailure) as cm:
+        cmd(f"ethtool -N {cfg.ifname} rx-flow-hash tcp4 sdfnl")
+    ksft_in("Invalid argument", cm.exception.cmd.stderr)
+
+    _check_v4_flow_types(cfg)
+
+    # Try to enable Flow Labels and check again, in case it leaks thru
+    initial = _ethtool_get_cfg(cfg, "udp6")
+    changed = initial.replace("l", "") if "l" in initial else initial + "l"
+
+    cmd(f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {changed}")
+    restore = defer(cmd, f"ethtool -N {cfg.ifname} rx-flow-hash udp6 {initial}")
+
+    _check_v4_flow_types(cfg)
+    restore.exec()
+    _check_v4_flow_types(cfg)
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        ksft_run([test_rss_flow_label,
+                  test_rss_flow_label_6only],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py b/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py
new file mode 100755
index 000000000000..72880e388478
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/rss_input_xfrm.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import multiprocessing
+import socket
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_ge, cmd, fd_read_timeout
+from lib.py import NetDrvEpEnv
+from lib.py import EthtoolFamily, NetdevFamily
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import rand_port
+
+
+def traffic(cfg, local_port, remote_port, ipver):
+    af_inet = socket.AF_INET if ipver == "4" else socket.AF_INET6
+    sock = socket.socket(af_inet, socket.SOCK_DGRAM)
+    sock.bind(("", local_port))
+    sock.connect((cfg.remote_addr_v[ipver], remote_port))
+    tgt = f"{ipver}:[{cfg.addr_v[ipver]}]:{local_port},sourceport={remote_port}"
+    cmd("echo a | socat - UDP" + tgt, host=cfg.remote)
+    fd_read_timeout(sock.fileno(), 5)
+    return sock.getsockopt(socket.SOL_SOCKET, socket.SO_INCOMING_CPU)
+
+
+def test_rss_input_xfrm(cfg, ipver):
+    """
+    Test symmetric input_xfrm.
+    If symmetric RSS hash is configured, send traffic twice, swapping the
+    src/dst UDP ports, and verify that the same queue is receiving the traffic
+    in both cases (IPs are constant).
+    """
+
+    if multiprocessing.cpu_count() < 2:
+        raise KsftSkipEx("Need at least two CPUs to test symmetric RSS hash")
+
+    cfg.require_cmd("socat", local=False, remote=True)
+
+    if not hasattr(socket, "SO_INCOMING_CPU"):
+        raise KsftSkipEx("socket.SO_INCOMING_CPU was added in Python 3.11")
+
+    rss = cfg.ethnl.rss_get({'header': {'dev-name': cfg.ifname}})
+    input_xfrm = set(filter(lambda x: 'sym' in x, rss.get('input-xfrm', {})))
+
+    # Check for symmetric xor/or-xor
+    if not input_xfrm:
+        raise KsftSkipEx("Symmetric RSS hash not requested")
+
+    cpus = set()
+    successful = 0
+    for _ in range(100):
+        try:
+            port1 = rand_port(socket.SOCK_DGRAM)
+            port2 = rand_port(socket.SOCK_DGRAM)
+            cpu1 = traffic(cfg, port1, port2, ipver)
+            cpu2 = traffic(cfg, port2, port1, ipver)
+            cpus.update([cpu1, cpu2])
+            ksft_eq(
+                cpu1, cpu2, comment=f"Received traffic on different cpus with ports ({port1 = }, {port2 = }) while symmetric hash is configured")
+
+            successful += 1
+            if successful == 10:
+                break
+        except:
+            continue
+    else:
+        raise KsftFailEx("Failed to run traffic")
+
+    ksft_ge(len(cpus), 2,
+            comment=f"Received traffic on less than two cpus {cpus = }")
+
+
+def test_rss_input_xfrm_ipv4(cfg):
+    cfg.require_ipver("4")
+    test_rss_input_xfrm(cfg, "4")
+
+
+def test_rss_input_xfrm_ipv6(cfg):
+    cfg.require_ipver("6")
+    test_rss_input_xfrm(cfg, "6")
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        cfg.netdevnl = NetdevFamily()
+
+        ksft_run([test_rss_input_xfrm_ipv4, test_rss_input_xfrm_ipv6],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/settings b/tools/testing/selftests/drivers/net/hw/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/drivers/net/hw/toeplitz.c b/tools/testing/selftests/drivers/net/hw/toeplitz.c
new file mode 100644
index 000000000000..d23b3b0c20a3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/toeplitz.c
@@ -0,0 +1,655 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Toeplitz test
+ *
+ * 1. Read packets and their rx_hash using PF_PACKET/TPACKET_V3
+ * 2. Compute the rx_hash in software based on the packet contents
+ * 3. Compare the two
+ *
+ * Optionally, either '-C $rx_irq_cpu_list' or '-r $rps_bitmap' may be given.
+ *
+ * If '-C $rx_irq_cpu_list' is given, also
+ *
+ * 4. Identify the cpu on which the packet arrived with PACKET_FANOUT_CPU
+ * 5. Compute the rxqueue that RSS would select based on this rx_hash
+ * 6. Using the $rx_irq_cpu_list map, identify the arriving cpu based on rxq irq
+ * 7. Compare the cpus from 4 and 6
+ *
+ * Else if '-r $rps_bitmap' is given, also
+ *
+ * 4. Identify the cpu on which the packet arrived with PACKET_FANOUT_CPU
+ * 5. Compute the cpu that RPS should select based on rx_hash and $rps_bitmap
+ * 6. Compare the cpus from 4 and 5
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/filter.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <net/if.h>
+#include <netdb.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysinfo.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <ynl.h>
+#include "ethtool-user.h"
+
+#include "kselftest.h"
+#include "../../../net/lib/ksft.h"
+
+#define TOEPLITZ_KEY_MIN_LEN	40
+#define TOEPLITZ_KEY_MAX_LEN	60
+
+#define TOEPLITZ_STR_LEN(K)	(((K) * 3) - 1)	/* hex encoded: AA:BB:CC:...:ZZ */
+#define TOEPLITZ_STR_MIN_LEN	TOEPLITZ_STR_LEN(TOEPLITZ_KEY_MIN_LEN)
+#define TOEPLITZ_STR_MAX_LEN	TOEPLITZ_STR_LEN(TOEPLITZ_KEY_MAX_LEN)
+
+#define FOUR_TUPLE_MAX_LEN	((sizeof(struct in6_addr) * 2) + (sizeof(uint16_t) * 2))
+
+#define RSS_MAX_CPUS (1 << 16)	/* real constraint is PACKET_FANOUT_MAX */
+#define RSS_MAX_INDIR	(1 << 16)
+
+#define RPS_MAX_CPUS 16UL	/* must be a power of 2 */
+
+/* configuration options (cmdline arguments) */
+static uint16_t cfg_dport =	8000;
+static int cfg_family =		AF_INET6;
+static char *cfg_ifname =	"eth0";
+static int cfg_num_queues;
+static int cfg_num_rps_cpus;
+static bool cfg_sink;
+static int cfg_type =		SOCK_STREAM;
+static int cfg_timeout_msec =	1000;
+static bool cfg_verbose;
+
+/* global vars */
+static int num_cpus;
+static int ring_block_nr;
+static int ring_block_sz;
+
+/* stats */
+static int frames_received;
+static int frames_nohash;
+static int frames_error;
+
+#define log_verbose(args...)	do { if (cfg_verbose) fprintf(stderr, args); } while (0)
+
+/* tpacket ring */
+struct ring_state {
+	int fd;
+	char *mmap;
+	int idx;
+	int cpu;
+};
+
+static unsigned int rx_irq_cpus[RSS_MAX_CPUS];	/* map from rxq to cpu */
+static int rps_silo_to_cpu[RPS_MAX_CPUS];
+static unsigned char toeplitz_key[TOEPLITZ_KEY_MAX_LEN];
+static unsigned int rss_indir_tbl[RSS_MAX_INDIR];
+static unsigned int rss_indir_tbl_size;
+static struct ring_state rings[RSS_MAX_CPUS];
+
+static inline uint32_t toeplitz(const unsigned char *four_tuple,
+				const unsigned char *key)
+{
+	int i, bit, ret = 0;
+	uint32_t key32;
+
+	key32 = ntohl(*((uint32_t *)key));
+	key += 4;
+
+	for (i = 0; i < FOUR_TUPLE_MAX_LEN; i++) {
+		for (bit = 7; bit >= 0; bit--) {
+			if (four_tuple[i] & (1 << bit))
+				ret ^= key32;
+
+			key32 <<= 1;
+			key32 |= !!(key[0] & (1 << bit));
+		}
+		key++;
+	}
+
+	return ret;
+}
+
+/* Compare computed cpu with arrival cpu from packet_fanout_cpu */
+static void verify_rss(uint32_t rx_hash, int cpu)
+{
+	int queue;
+
+	if (rss_indir_tbl_size)
+		queue = rss_indir_tbl[rx_hash % rss_indir_tbl_size];
+	else
+		queue = rx_hash % cfg_num_queues;
+
+	log_verbose(" rxq %d (cpu %d)", queue, rx_irq_cpus[queue]);
+	if (rx_irq_cpus[queue] != cpu) {
+		log_verbose(". error: rss cpu mismatch (%d)", cpu);
+		frames_error++;
+	}
+}
+
+static void verify_rps(uint64_t rx_hash, int cpu)
+{
+	int silo = (rx_hash * cfg_num_rps_cpus) >> 32;
+
+	log_verbose(" silo %d (cpu %d)", silo, rps_silo_to_cpu[silo]);
+	if (rps_silo_to_cpu[silo] != cpu) {
+		log_verbose(". error: rps cpu mismatch (%d)", cpu);
+		frames_error++;
+	}
+}
+
+static void log_rxhash(int cpu, uint32_t rx_hash,
+		       const char *addrs, int addr_len)
+{
+	char saddr[INET6_ADDRSTRLEN], daddr[INET6_ADDRSTRLEN];
+	uint16_t *ports;
+
+	if (!inet_ntop(cfg_family, addrs, saddr, sizeof(saddr)) ||
+	    !inet_ntop(cfg_family, addrs + addr_len, daddr, sizeof(daddr)))
+		error(1, 0, "address parse error");
+
+	ports = (void *)addrs + (addr_len * 2);
+	log_verbose("cpu %d: rx_hash 0x%08x [saddr %s daddr %s sport %02hu dport %02hu]",
+		    cpu, rx_hash, saddr, daddr,
+		    ntohs(ports[0]), ntohs(ports[1]));
+}
+
+/* Compare computed rxhash with rxhash received from tpacket_v3 */
+static void verify_rxhash(const char *pkt, uint32_t rx_hash, int cpu)
+{
+	unsigned char four_tuple[FOUR_TUPLE_MAX_LEN] = {0};
+	uint32_t rx_hash_sw;
+	const char *addrs;
+	int addr_len;
+
+	if (cfg_family == AF_INET) {
+		addr_len = sizeof(struct in_addr);
+		addrs = pkt + offsetof(struct iphdr, saddr);
+	} else {
+		addr_len = sizeof(struct in6_addr);
+		addrs = pkt + offsetof(struct ip6_hdr, ip6_src);
+	}
+
+	memcpy(four_tuple, addrs, (addr_len * 2) + (sizeof(uint16_t) * 2));
+	rx_hash_sw = toeplitz(four_tuple, toeplitz_key);
+
+	if (cfg_verbose)
+		log_rxhash(cpu, rx_hash, addrs, addr_len);
+
+	if (rx_hash != rx_hash_sw) {
+		log_verbose(" != expected 0x%x\n", rx_hash_sw);
+		frames_error++;
+		return;
+	}
+
+	log_verbose(" OK");
+	if (cfg_num_queues)
+		verify_rss(rx_hash, cpu);
+	else if (cfg_num_rps_cpus)
+		verify_rps(rx_hash, cpu);
+	log_verbose("\n");
+}
+
+static char *recv_frame(const struct ring_state *ring, char *frame)
+{
+	struct tpacket3_hdr *hdr = (void *)frame;
+
+	if (hdr->hv1.tp_rxhash)
+		verify_rxhash(frame + hdr->tp_net, hdr->hv1.tp_rxhash,
+			      ring->cpu);
+	else
+		frames_nohash++;
+
+	return frame + hdr->tp_next_offset;
+}
+
+/* A single TPACKET_V3 block can hold multiple frames */
+static bool recv_block(struct ring_state *ring)
+{
+	struct tpacket_block_desc *block;
+	char *frame;
+	int i;
+
+	block = (void *)(ring->mmap + ring->idx * ring_block_sz);
+	if (!(block->hdr.bh1.block_status & TP_STATUS_USER))
+		return false;
+
+	frame = (char *)block;
+	frame += block->hdr.bh1.offset_to_first_pkt;
+
+	for (i = 0; i < block->hdr.bh1.num_pkts; i++) {
+		frame = recv_frame(ring, frame);
+		frames_received++;
+	}
+
+	block->hdr.bh1.block_status = TP_STATUS_KERNEL;
+	ring->idx = (ring->idx + 1) % ring_block_nr;
+
+	return true;
+}
+
+/* simple test: sleep once unconditionally and then process all rings */
+static void process_rings(void)
+{
+	int i;
+
+	usleep(1000 * cfg_timeout_msec);
+
+	for (i = 0; i < num_cpus; i++)
+		do {} while (recv_block(&rings[i]));
+
+	fprintf(stderr, "count: pass=%u nohash=%u fail=%u\n",
+		frames_received - frames_nohash - frames_error,
+		frames_nohash, frames_error);
+}
+
+static char *setup_ring(int fd)
+{
+	struct tpacket_req3 req3 = {0};
+	void *ring;
+
+	req3.tp_retire_blk_tov = cfg_timeout_msec / 8;
+	req3.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
+
+	req3.tp_frame_size = 2048;
+	req3.tp_frame_nr = 1 << 10;
+	req3.tp_block_nr = 16;
+
+	req3.tp_block_size = req3.tp_frame_size * req3.tp_frame_nr;
+	req3.tp_block_size /= req3.tp_block_nr;
+
+	if (setsockopt(fd, SOL_PACKET, PACKET_RX_RING, &req3, sizeof(req3)))
+		error(1, errno, "setsockopt PACKET_RX_RING");
+
+	ring_block_sz = req3.tp_block_size;
+	ring_block_nr = req3.tp_block_nr;
+
+	ring = mmap(0, req3.tp_block_size * req3.tp_block_nr,
+		    PROT_READ | PROT_WRITE,
+		    MAP_SHARED | MAP_LOCKED | MAP_POPULATE, fd, 0);
+	if (ring == MAP_FAILED)
+		error(1, 0, "mmap failed");
+
+	return ring;
+}
+
+static void __set_filter(int fd, int off_proto, uint8_t proto, int off_dport)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, PACKET_HOST, 0, 4),
+		BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, off_proto),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, proto, 0, 2),
+		BPF_STMT(BPF_LD  + BPF_H   + BPF_ABS, off_dport),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, cfg_dport, 1, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0xFFFF),
+	};
+	struct sock_fprog prog = {};
+
+	prog.filter = filter;
+	prog.len = ARRAY_SIZE(filter);
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &prog, sizeof(prog)))
+		error(1, errno, "setsockopt filter");
+}
+
+/* filter on transport protocol and destination port */
+static void set_filter(int fd)
+{
+	const int off_dport = offsetof(struct tcphdr, dest);	/* same for udp */
+	uint8_t proto;
+
+	proto = cfg_type == SOCK_STREAM ? IPPROTO_TCP : IPPROTO_UDP;
+	if (cfg_family == AF_INET)
+		__set_filter(fd, offsetof(struct iphdr, protocol), proto,
+			     sizeof(struct iphdr) + off_dport);
+	else
+		__set_filter(fd, offsetof(struct ip6_hdr, ip6_nxt), proto,
+			     sizeof(struct ip6_hdr) + off_dport);
+}
+
+/* drop everything: used temporarily during setup */
+static void set_filter_null(int fd)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET + BPF_K, 0),
+	};
+	struct sock_fprog prog = {};
+
+	prog.filter = filter;
+	prog.len = ARRAY_SIZE(filter);
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &prog, sizeof(prog)))
+		error(1, errno, "setsockopt filter");
+}
+
+static int create_ring(char **ring)
+{
+	struct fanout_args args = {
+		.id = 1,
+		.type_flags = PACKET_FANOUT_CPU,
+		.max_num_members = RSS_MAX_CPUS
+	};
+	struct sockaddr_ll ll = { 0 };
+	int fd, val;
+
+	fd = socket(PF_PACKET, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket creation failed");
+
+	val = TPACKET_V3;
+	if (setsockopt(fd, SOL_PACKET, PACKET_VERSION, &val, sizeof(val)))
+		error(1, errno, "setsockopt PACKET_VERSION");
+	*ring = setup_ring(fd);
+
+	/* block packets until all rings are added to the fanout group:
+	 * else packets can arrive during setup and get misclassified
+	 */
+	set_filter_null(fd);
+
+	ll.sll_family = AF_PACKET;
+	ll.sll_ifindex = if_nametoindex(cfg_ifname);
+	ll.sll_protocol = cfg_family == AF_INET ? htons(ETH_P_IP) :
+						  htons(ETH_P_IPV6);
+	if (bind(fd, (void *)&ll, sizeof(ll)))
+		error(1, errno, "bind");
+
+	/* must come after bind: verifies all programs in group match */
+	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &args, sizeof(args))) {
+		/* on failure, retry using old API if that is sufficient:
+		 * it has a hard limit of 256 sockets, so only try if
+		 * (a) only testing rxhash, not RSS or (b) <= 256 cpus.
+		 * in this API, the third argument is left implicit.
+		 */
+		if (cfg_num_queues || num_cpus > 256 ||
+		    setsockopt(fd, SOL_PACKET, PACKET_FANOUT,
+			       &args, sizeof(uint32_t)))
+			error(1, errno, "setsockopt PACKET_FANOUT cpu");
+	}
+
+	return fd;
+}
+
+/* setup inet(6) socket to blackhole the test traffic, if arg '-s' */
+static int setup_sink(void)
+{
+	int fd, val;
+
+	fd = socket(cfg_family, cfg_type, 0);
+	if (fd == -1)
+		error(1, errno, "socket %d.%d", cfg_family, cfg_type);
+
+	val = 1 << 20;
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVBUFFORCE, &val, sizeof(val)))
+		error(1, errno, "setsockopt rcvbuf");
+
+	return fd;
+}
+
+static void setup_rings(void)
+{
+	int i;
+
+	for (i = 0; i < num_cpus; i++) {
+		rings[i].cpu = i;
+		rings[i].fd = create_ring(&rings[i].mmap);
+	}
+
+	/* accept packets once all rings in the fanout group are up */
+	for (i = 0; i < num_cpus; i++)
+		set_filter(rings[i].fd);
+}
+
+static void cleanup_rings(void)
+{
+	int i;
+
+	for (i = 0; i < num_cpus; i++) {
+		if (munmap(rings[i].mmap, ring_block_nr * ring_block_sz))
+			error(1, errno, "munmap");
+		if (close(rings[i].fd))
+			error(1, errno, "close");
+	}
+}
+
+static void parse_cpulist(const char *arg)
+{
+	do {
+		rx_irq_cpus[cfg_num_queues++] = strtol(arg, NULL, 10);
+
+		arg = strchr(arg, ',');
+		if (!arg)
+			break;
+		arg++;			// skip ','
+	} while (1);
+}
+
+static void show_cpulist(void)
+{
+	int i;
+
+	for (i = 0; i < cfg_num_queues; i++)
+		fprintf(stderr, "rxq %d: cpu %d\n", i, rx_irq_cpus[i]);
+}
+
+static void show_silos(void)
+{
+	int i;
+
+	for (i = 0; i < cfg_num_rps_cpus; i++)
+		fprintf(stderr, "silo %d: cpu %d\n", i, rps_silo_to_cpu[i]);
+}
+
+static void parse_toeplitz_key(const char *str, int slen, unsigned char *key)
+{
+	int i, ret, off;
+
+	if (slen < TOEPLITZ_STR_MIN_LEN ||
+	    slen > TOEPLITZ_STR_MAX_LEN + 1)
+		error(1, 0, "invalid toeplitz key");
+
+	for (i = 0, off = 0; off < slen; i++, off += 3) {
+		ret = sscanf(str + off, "%hhx", &key[i]);
+		if (ret != 1)
+			error(1, 0, "key parse error at %d off %d len %d",
+			      i, off, slen);
+	}
+}
+
+static void parse_rps_bitmap(const char *arg)
+{
+	unsigned long bitmap;
+	int i;
+
+	bitmap = strtoul(arg, NULL, 0);
+
+	if (bitmap & ~(RPS_MAX_CPUS - 1))
+		error(1, 0, "rps bitmap 0x%lx out of bounds 0..%lu",
+		      bitmap, RPS_MAX_CPUS - 1);
+
+	for (i = 0; i < RPS_MAX_CPUS; i++)
+		if (bitmap & 1UL << i)
+			rps_silo_to_cpu[cfg_num_rps_cpus++] = i;
+}
+
+static void read_rss_dev_info_ynl(void)
+{
+	struct ethtool_rss_get_req *req;
+	struct ethtool_rss_get_rsp *rsp;
+	struct ynl_sock *ys;
+
+	ys = ynl_sock_create(&ynl_ethtool_family, NULL);
+	if (!ys)
+		error(1, errno, "ynl_sock_create failed");
+
+	req = ethtool_rss_get_req_alloc();
+	if (!req)
+		error(1, errno, "ethtool_rss_get_req_alloc failed");
+
+	ethtool_rss_get_req_set_header_dev_name(req, cfg_ifname);
+
+	rsp = ethtool_rss_get(ys, req);
+	if (!rsp)
+		error(1, ys->err.code, "YNL: %s", ys->err.msg);
+
+	if (!rsp->_len.hkey)
+		error(1, 0, "RSS key not available for %s", cfg_ifname);
+
+	if (rsp->_len.hkey < TOEPLITZ_KEY_MIN_LEN ||
+	    rsp->_len.hkey > TOEPLITZ_KEY_MAX_LEN)
+		error(1, 0, "RSS key length %u out of bounds [%u, %u]",
+		      rsp->_len.hkey, TOEPLITZ_KEY_MIN_LEN,
+		      TOEPLITZ_KEY_MAX_LEN);
+
+	memcpy(toeplitz_key, rsp->hkey, rsp->_len.hkey);
+
+	if (rsp->_count.indir > RSS_MAX_INDIR)
+		error(1, 0, "RSS indirection table too large (%u > %u)",
+		      rsp->_count.indir, RSS_MAX_INDIR);
+
+	/* If indir table not available we'll fallback to simple modulo math */
+	if (rsp->_count.indir) {
+		memcpy(rss_indir_tbl, rsp->indir,
+		       rsp->_count.indir * sizeof(rss_indir_tbl[0]));
+		rss_indir_tbl_size = rsp->_count.indir;
+
+		log_verbose("RSS indirection table size: %u\n",
+			    rss_indir_tbl_size);
+	}
+
+	ethtool_rss_get_rsp_free(rsp);
+	ethtool_rss_get_req_free(req);
+	ynl_sock_destroy(ys);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	static struct option long_options[] = {
+	    {"dport",	required_argument, 0, 'd'},
+	    {"cpus",	required_argument, 0, 'C'},
+	    {"key",	required_argument, 0, 'k'},
+	    {"iface",	required_argument, 0, 'i'},
+	    {"ipv4",	no_argument, 0, '4'},
+	    {"ipv6",	no_argument, 0, '6'},
+	    {"sink",	no_argument, 0, 's'},
+	    {"tcp",	no_argument, 0, 't'},
+	    {"timeout",	required_argument, 0, 'T'},
+	    {"udp",	no_argument, 0, 'u'},
+	    {"verbose",	no_argument, 0, 'v'},
+	    {"rps",	required_argument, 0, 'r'},
+	    {0, 0, 0, 0}
+	};
+	bool have_toeplitz = false;
+	int index, c;
+
+	while ((c = getopt_long(argc, argv, "46C:d:i:k:r:stT:uv", long_options, &index)) != -1) {
+		switch (c) {
+		case '4':
+			cfg_family = AF_INET;
+			break;
+		case '6':
+			cfg_family = AF_INET6;
+			break;
+		case 'C':
+			parse_cpulist(optarg);
+			break;
+		case 'd':
+			cfg_dport = strtol(optarg, NULL, 0);
+			break;
+		case 'i':
+			cfg_ifname = optarg;
+			break;
+		case 'k':
+			parse_toeplitz_key(optarg, strlen(optarg),
+					   toeplitz_key);
+			have_toeplitz = true;
+			break;
+		case 'r':
+			parse_rps_bitmap(optarg);
+			break;
+		case 's':
+			cfg_sink = true;
+			break;
+		case 't':
+			cfg_type = SOCK_STREAM;
+			break;
+		case 'T':
+			cfg_timeout_msec = strtol(optarg, NULL, 0);
+			break;
+		case 'u':
+			cfg_type = SOCK_DGRAM;
+			break;
+		case 'v':
+			cfg_verbose = true;
+			break;
+
+		default:
+			error(1, 0, "unknown option %c", optopt);
+			break;
+		}
+	}
+
+	if (!have_toeplitz)
+		read_rss_dev_info_ynl();
+
+	num_cpus = get_nprocs();
+	if (num_cpus > RSS_MAX_CPUS)
+		error(1, 0, "increase RSS_MAX_CPUS");
+
+	if (cfg_num_queues && cfg_num_rps_cpus)
+		error(1, 0,
+		      "Can't supply both RSS cpus ('-C') and RPS map ('-r')");
+	if (cfg_verbose) {
+		show_cpulist();
+		show_silos();
+	}
+}
+
+int main(int argc, char **argv)
+{
+	const int min_tests = 10;
+	int fd_sink = -1;
+
+	parse_opts(argc, argv);
+
+	if (cfg_sink)
+		fd_sink = setup_sink();
+
+	setup_rings();
+
+	/* Signal to test framework that we're ready to receive */
+	ksft_ready();
+
+	process_rings();
+	cleanup_rings();
+
+	if (cfg_sink && close(fd_sink))
+		error(1, errno, "close sink");
+
+	if (frames_received - frames_nohash < min_tests)
+		error(1, 0, "too few frames for verification");
+
+	return frames_error;
+}
diff --git a/tools/testing/selftests/drivers/net/hw/toeplitz.py b/tools/testing/selftests/drivers/net/hw/toeplitz.py
new file mode 100755
index 000000000000..d2db5ee9e358
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/toeplitz.py
@@ -0,0 +1,211 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Toeplitz Rx hashing test:
+ - rxhash (the hash value calculation itself);
+ - RSS mapping from rxhash to rx queue;
+ - RPS mapping from rxhash to cpu.
+"""
+
+import glob
+import os
+import socket
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import NetDrvEpEnv, EthtoolFamily, NetdevFamily
+from lib.py import cmd, bkg, rand_port, defer
+from lib.py import ksft_in
+from lib.py import ksft_variants, KsftNamedVariant, KsftSkipEx, KsftFailEx
+
+# "define" for the ID of the Toeplitz hash function
+ETH_RSS_HASH_TOP = 1
+
+
+def _check_rps_and_rfs_not_configured(cfg):
+    """Verify that RPS is not already configured."""
+
+    for rps_file in glob.glob(f"/sys/class/net/{cfg.ifname}/queues/rx-*/rps_cpus"):
+        with open(rps_file, "r", encoding="utf-8") as fp:
+            val = fp.read().strip()
+            if set(val) - {"0", ","}:
+                raise KsftSkipEx(f"RPS already configured on {rps_file}: {val}")
+
+    rfs_file = "/proc/sys/net/core/rps_sock_flow_entries"
+    with open(rfs_file, "r", encoding="utf-8") as fp:
+        val = fp.read().strip()
+        if val != "0":
+            raise KsftSkipEx(f"RFS already configured {rfs_file}: {val}")
+
+
+def _get_cpu_for_irq(irq):
+    with open(f"/proc/irq/{irq}/smp_affinity_list", "r",
+              encoding="utf-8") as fp:
+        data = fp.read().strip()
+        if "," in data or "-" in data:
+            raise KsftFailEx(f"IRQ{irq} is not mapped to a single core: {data}")
+        return int(data)
+
+
+def _get_irq_cpus(cfg):
+    """
+    Read the list of IRQs for the device Rx queues.
+    """
+    queues = cfg.netnl.queue_get({"ifindex": cfg.ifindex}, dump=True)
+    napis = cfg.netnl.napi_get({"ifindex": cfg.ifindex}, dump=True)
+
+    # Remap into ID-based dicts
+    napis = {n["id"]: n for n in napis}
+    queues = {f"{q['type']}{q['id']}": q for q in queues}
+
+    cpus = []
+    for rx in range(9999):
+        name = f"rx{rx}"
+        if name not in queues:
+            break
+        cpus.append(_get_cpu_for_irq(napis[queues[name]["napi-id"]]["irq"]))
+
+    return cpus
+
+
+def _get_unused_cpus(cfg, count=2):
+    """
+    Get CPUs that are not used by Rx queues.
+    Returns a list of at least 'count' CPU numbers.
+    """
+
+    # Get CPUs used by Rx queues
+    rx_cpus = set(_get_irq_cpus(cfg))
+
+    # Get total number of CPUs
+    num_cpus = os.cpu_count()
+
+    # Find unused CPUs
+    unused_cpus = [cpu for cpu in range(num_cpus) if cpu not in rx_cpus]
+
+    if len(unused_cpus) < count:
+        raise KsftSkipEx(f"Need at {count} CPUs not used by Rx queues, found {len(unused_cpus)}")
+
+    return unused_cpus[:count]
+
+
+def _configure_rps(cfg, rps_cpus):
+    """Configure RPS for all Rx queues."""
+
+    mask = 0
+    for cpu in rps_cpus:
+        mask |= (1 << cpu)
+    mask = hex(mask)[2:]
+
+    # Set RPS bitmap for all rx queues
+    for rps_file in glob.glob(f"/sys/class/net/{cfg.ifname}/queues/rx-*/rps_cpus"):
+        with open(rps_file, "w", encoding="utf-8") as fp:
+            fp.write(mask)
+
+    return mask
+
+
+def _send_traffic(cfg, proto_flag, ipver, port):
+    """Send 20 packets of requested type."""
+
+    # Determine protocol and IP version for socat
+    if proto_flag == "-u":
+        proto = "UDP"
+    else:
+        proto = "TCP"
+
+    baddr = f"[{cfg.addr_v['6']}]" if ipver == "6" else cfg.addr_v["4"]
+
+    # Run socat in a loop to send traffic periodically
+    # Use sh -c with a loop similar to toeplitz_client.sh
+    socat_cmd = f"""
+    for i in `seq 20`; do
+        echo "msg $i" | socat -{ipver} -t 0.1 - {proto}:{baddr}:{port};
+        sleep 0.001;
+    done
+    """
+
+    cmd(socat_cmd, shell=True, host=cfg.remote)
+
+
+def _test_variants():
+    for grp in ["", "rss", "rps"]:
+        for l4 in ["tcp", "udp"]:
+            for l3 in ["4", "6"]:
+                name = f"{l4}_ipv{l3}"
+                if grp:
+                    name = f"{grp}_{name}"
+                yield KsftNamedVariant(name, "-" + l4[0], l3, grp)
+
+
+@ksft_variants(_test_variants())
+def test(cfg, proto_flag, ipver, grp):
+    """Run a single toeplitz test."""
+
+    cfg.require_ipver(ipver)
+
+    # Check that rxhash is enabled
+    ksft_in("receive-hashing: on", cmd(f"ethtool -k {cfg.ifname}").stdout)
+
+    rss = cfg.ethnl.rss_get({"header": {"dev-index": cfg.ifindex}})
+    # Make sure NIC is configured to use Toeplitz hash, and no key xfrm.
+    if rss.get('hfunc') != ETH_RSS_HASH_TOP or rss.get('input-xfrm'):
+        cfg.ethnl.rss_set({"header": {"dev-index": cfg.ifindex},
+                           "hfunc": ETH_RSS_HASH_TOP,
+                           "input-xfrm": {}})
+        defer(cfg.ethnl.rss_set, {"header": {"dev-index": cfg.ifindex},
+                                  "hfunc": rss.get('hfunc'),
+                                  "input-xfrm": rss.get('input-xfrm', {})
+                                  })
+
+    port = rand_port(socket.SOCK_DGRAM)
+
+    toeplitz_path = cfg.test_dir / "toeplitz"
+    rx_cmd = [
+        str(toeplitz_path),
+        "-" + ipver,
+        proto_flag,
+        "-d", str(port),
+        "-i", cfg.ifname,
+        "-T", "4000",
+        "-s",
+        "-v"
+    ]
+
+    if grp:
+        _check_rps_and_rfs_not_configured(cfg)
+    if grp == "rss":
+        irq_cpus = ",".join([str(x) for x in _get_irq_cpus(cfg)])
+        rx_cmd += ["-C", irq_cpus]
+        ksft_pr(f"RSS using CPUs: {irq_cpus}")
+    elif grp == "rps":
+        # Get CPUs not used by Rx queues and configure them for RPS
+        rps_cpus = _get_unused_cpus(cfg, count=2)
+        rps_mask = _configure_rps(cfg, rps_cpus)
+        defer(_configure_rps, cfg, [])
+        rx_cmd += ["-r", rps_mask]
+        ksft_pr(f"RPS using CPUs: {rps_cpus}, mask: {rps_mask}")
+
+    # Run rx in background, it will exit once it has seen enough packets
+    with bkg(" ".join(rx_cmd), ksft_ready=True, exit_wait=True) as rx_proc:
+        while rx_proc.proc.poll() is None:
+            _send_traffic(cfg, proto_flag, ipver, port)
+
+    # Check rx result
+    ksft_pr("Receiver output:")
+    ksft_pr(rx_proc.stdout.strip().replace('\n', '\n# '))
+    if rx_proc.stderr:
+        ksft_pr(rx_proc.stderr.strip().replace('\n', '\n# '))
+
+
+def main() -> None:
+    """Ksft boilerplate main."""
+
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        cfg.netnl = NetdevFamily()
+        ksft_run(cases=[test], args=(cfg,))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/tso.py b/tools/testing/selftests/drivers/net/hw/tso.py
new file mode 100755
index 000000000000..0998e68ebaf0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/tso.py
@@ -0,0 +1,261 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Run the tools/testing/selftests/net/csum testsuite."""
+
+import fcntl
+import socket
+import struct
+import termios
+import time
+
+from lib.py import ksft_pr, ksft_run, ksft_exit, KsftSkipEx, KsftXfailEx
+from lib.py import ksft_eq, ksft_ge, ksft_lt
+from lib.py import EthtoolFamily, NetdevFamily, NetDrvEpEnv
+from lib.py import bkg, cmd, defer, ethtool, ip, rand_port, wait_port_listen
+
+
+def sock_wait_drain(sock, max_wait=1000):
+    """Wait for all pending write data on the socket to get ACKed."""
+    for _ in range(max_wait):
+        one = b'\0' * 4
+        outq = fcntl.ioctl(sock.fileno(), termios.TIOCOUTQ, one)
+        outq = struct.unpack("I", outq)[0]
+        if outq == 0:
+            break
+        time.sleep(0.01)
+    ksft_eq(outq, 0)
+
+
+def tcp_sock_get_retrans(sock):
+    """Get the number of retransmissions for the TCP socket."""
+    info = sock.getsockopt(socket.SOL_TCP, socket.TCP_INFO, 512)
+    return struct.unpack("I", info[100:104])[0]
+
+
+def run_one_stream(cfg, ipver, remote_v4, remote_v6, should_lso):
+    cfg.require_cmd("socat", local=False, remote=True)
+
+    port = rand_port()
+    listen_cmd = f"socat -{ipver} -t 2 -u TCP-LISTEN:{port},reuseport /dev/null,ignoreeof"
+
+    with bkg(listen_cmd, host=cfg.remote, exit_wait=True) as nc:
+        wait_port_listen(port, host=cfg.remote)
+
+        if ipver == "4":
+            sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+            sock.connect((remote_v4, port))
+        else:
+            sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
+            sock.connect((remote_v6, port))
+
+        # Small send to make sure the connection is working.
+        sock.send("ping".encode())
+        sock_wait_drain(sock)
+
+        # Send 4MB of data, record the LSO packet count.
+        qstat_old = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+        buf = b"0" * 1024 * 1024 * 4
+        sock.send(buf)
+        sock_wait_drain(sock)
+        qstat_new = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+
+        # Check that at least 90% of the data was sent as LSO packets.
+        # System noise may cause false negatives. Also header overheads
+        # will add up to 5% of extra packes... The check is best effort.
+        total_lso_wire  = len(buf) * 0.90 // cfg.dev["mtu"]
+        total_lso_super = len(buf) * 0.90 // cfg.dev["tso_max_size"]
+
+        # Make sure we have order of magnitude more LSO packets than
+        # retransmits, in case TCP retransmitted all the LSO packets.
+        ksft_lt(tcp_sock_get_retrans(sock), total_lso_wire / 4)
+        sock.close()
+
+        if should_lso:
+            if cfg.have_stat_super_count:
+                ksft_ge(qstat_new['tx-hw-gso-packets'] -
+                        qstat_old['tx-hw-gso-packets'],
+                        total_lso_super,
+                        comment="Number of LSO super-packets with LSO enabled")
+            if cfg.have_stat_wire_count:
+                ksft_ge(qstat_new['tx-hw-gso-wire-packets'] -
+                        qstat_old['tx-hw-gso-wire-packets'],
+                        total_lso_wire,
+                        comment="Number of LSO wire-packets with LSO enabled")
+        else:
+            if cfg.have_stat_super_count:
+                ksft_lt(qstat_new['tx-hw-gso-packets'] -
+                        qstat_old['tx-hw-gso-packets'],
+                        15, comment="Number of LSO super-packets with LSO disabled")
+            if cfg.have_stat_wire_count:
+                ksft_lt(qstat_new['tx-hw-gso-wire-packets'] -
+                        qstat_old['tx-hw-gso-wire-packets'],
+                        500, comment="Number of LSO wire-packets with LSO disabled")
+
+
+def build_tunnel(cfg, outer_ipver, tun_info):
+    local_v4  = NetDrvEpEnv.nsim_v4_pfx + "1"
+    local_v6  = NetDrvEpEnv.nsim_v6_pfx + "1"
+    remote_v4 = NetDrvEpEnv.nsim_v4_pfx + "2"
+    remote_v6 = NetDrvEpEnv.nsim_v6_pfx + "2"
+
+    local_addr  = cfg.addr_v[outer_ipver]
+    remote_addr = cfg.remote_addr_v[outer_ipver]
+
+    tun_type = tun_info[0]
+    tun_arg  = tun_info[1]
+    ip(f"link add {tun_type}-ksft type {tun_type} {tun_arg} local {local_addr} remote {remote_addr} dev {cfg.ifname}")
+    defer(ip, f"link del {tun_type}-ksft")
+    ip(f"link set dev {tun_type}-ksft up")
+    ip(f"addr add {local_v4}/24 dev {tun_type}-ksft")
+    ip(f"addr add {local_v6}/64 dev {tun_type}-ksft")
+
+    ip(f"link add {tun_type}-ksft type {tun_type} {tun_arg} local {remote_addr} remote {local_addr} dev {cfg.remote_ifname}",
+        host=cfg.remote)
+    defer(ip, f"link del {tun_type}-ksft", host=cfg.remote)
+    ip(f"link set dev {tun_type}-ksft up", host=cfg.remote)
+    ip(f"addr add {remote_v4}/24 dev {tun_type}-ksft", host=cfg.remote)
+    ip(f"addr add {remote_v6}/64 dev {tun_type}-ksft", host=cfg.remote)
+
+    return remote_v4, remote_v6
+
+
+def restore_wanted_features(cfg):
+    features_cmd = ""
+    for feature in cfg.hw_features:
+        setting = "on" if feature in cfg.wanted_features else "off"
+        features_cmd += f" {feature} {setting}"
+    try:
+        ethtool(f"-K {cfg.ifname} {features_cmd}")
+    except Exception as e:
+        ksft_pr(f"WARNING: failure restoring wanted features: {e}")
+
+
+def test_builder(name, cfg, outer_ipver, feature, tun=None, inner_ipver=None):
+    """Construct specific tests from the common template."""
+    def f(cfg):
+        cfg.require_ipver(outer_ipver)
+        defer(restore_wanted_features, cfg)
+
+        if not cfg.have_stat_super_count and \
+           not cfg.have_stat_wire_count:
+            raise KsftSkipEx(f"Device does not support LSO queue stats")
+
+        if feature not in cfg.hw_features:
+            raise KsftSkipEx(f"Device does not support {feature}")
+
+        ipver = outer_ipver
+        if tun:
+            remote_v4, remote_v6 = build_tunnel(cfg, ipver, tun)
+            ipver = inner_ipver
+        else:
+            remote_v4 = cfg.remote_addr_v["4"]
+            remote_v6 = cfg.remote_addr_v["6"]
+
+        # First test without the feature enabled.
+        ethtool(f"-K {cfg.ifname} {feature} off")
+        run_one_stream(cfg, ipver, remote_v4, remote_v6, should_lso=False)
+
+        ethtool(f"-K {cfg.ifname} tx-gso-partial off")
+        ethtool(f"-K {cfg.ifname} tx-tcp-mangleid-segmentation off")
+        if feature in cfg.partial_features:
+            ethtool(f"-K {cfg.ifname} tx-gso-partial on")
+            if ipver == "4":
+                ksft_pr("Testing with mangleid enabled")
+                ethtool(f"-K {cfg.ifname} tx-tcp-mangleid-segmentation on")
+
+        # Full feature enabled.
+        ethtool(f"-K {cfg.ifname} {feature} on")
+        run_one_stream(cfg, ipver, remote_v4, remote_v6, should_lso=True)
+
+    f.__name__ = name + ((outer_ipver + "_") if tun else "") + "ipv" + inner_ipver
+    return f
+
+
+def query_nic_features(cfg) -> None:
+    """Query and cache the NIC features."""
+    cfg.have_stat_super_count = False
+    cfg.have_stat_wire_count = False
+
+    features = cfg.ethnl.features_get({"header": {"dev-index": cfg.ifindex}})
+
+    cfg.wanted_features = set()
+    for f in features["wanted"]["bits"]["bit"]:
+        cfg.wanted_features.add(f["name"])
+
+    cfg.hw_features = set()
+    hw_all_features_cmd = ""
+    for f in features["hw"]["bits"]["bit"]:
+        if f.get("value", False):
+            feature = f["name"]
+            cfg.hw_features.add(feature)
+            hw_all_features_cmd += f" {feature} on"
+    try:
+        ethtool(f"-K {cfg.ifname} {hw_all_features_cmd}")
+    except Exception as e:
+        ksft_pr(f"WARNING: failure enabling all hw features: {e}")
+        ksft_pr("partial gso feature detection may be impacted")
+
+    # Check which features are supported via GSO partial
+    cfg.partial_features = set()
+    if 'tx-gso-partial' in cfg.hw_features:
+        ethtool(f"-K {cfg.ifname} tx-gso-partial off")
+
+        no_partial = set()
+        features = cfg.ethnl.features_get({"header": {"dev-index": cfg.ifindex}})
+        for f in features["active"]["bits"]["bit"]:
+            no_partial.add(f["name"])
+        cfg.partial_features = cfg.hw_features - no_partial
+        ethtool(f"-K {cfg.ifname} tx-gso-partial on")
+
+    restore_wanted_features(cfg)
+
+    stats = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)
+    if stats:
+        if 'tx-hw-gso-packets' in stats[0]:
+            ksft_pr("Detected qstat for LSO super-packets")
+            cfg.have_stat_super_count = True
+        if 'tx-hw-gso-wire-packets' in stats[0]:
+            ksft_pr("Detected qstat for LSO wire-packets")
+            cfg.have_stat_wire_count = True
+
+
+def main() -> None:
+    with NetDrvEpEnv(__file__, nsim_test=False) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        cfg.netnl = NetdevFamily()
+
+        query_nic_features(cfg)
+
+        test_info = (
+            # name,       v4/v6  ethtool_feature               tun:(type, args, inner ip versions)
+            ("",           "4", "tx-tcp-segmentation",         None),
+            ("",           "6", "tx-tcp6-segmentation",        None),
+            ("vxlan",      "4", "tx-udp_tnl-segmentation",     ("vxlan", "id 100 dstport 4789 noudpcsum", ("4", "6"))),
+            ("vxlan",      "6", "tx-udp_tnl-segmentation",     ("vxlan", "id 100 dstport 4789 udp6zerocsumtx udp6zerocsumrx", ("4", "6"))),
+            ("vxlan_csum", "", "tx-udp_tnl-csum-segmentation", ("vxlan", "id 100 dstport 4789 udpcsum", ("4", "6"))),
+            ("gre",        "4", "tx-gre-segmentation",         ("gre",   "", ("4", "6"))),
+            ("gre",        "6", "tx-gre-segmentation",         ("ip6gre","", ("4", "6"))),
+        )
+
+        cases = []
+        for outer_ipver in ["4", "6"]:
+            for info in test_info:
+                # Skip if test which only works for a specific IP version
+                if info[1] and outer_ipver != info[1]:
+                    continue
+
+                if info[3]:
+                    cases += [
+                        test_builder(info[0], cfg, outer_ipver, info[2], info[3], inner_ipver)
+                        for inner_ipver in info[3][2]
+                    ]
+                else:
+                    cases.append(test_builder(info[0], cfg, outer_ipver, info[2], None, outer_ipver))
+
+        ksft_run(cases=cases, args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/hw/xsk_reconfig.py b/tools/testing/selftests/drivers/net/hw/xsk_reconfig.py
new file mode 100755
index 000000000000..d19d1d518208
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/hw/xsk_reconfig.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+# This is intended to be run on a virtio-net guest interface.
+# The test binds the XDP socket to the interface without setting
+# the fill ring to trigger delayed refill_work. This helps to
+# make it easier to reproduce the deadlock when XDP program,
+# XDP socket bind/unbind, rx ring resize race with refill_work on
+# the buggy kernel.
+#
+# The Qemu command to setup virtio-net
+# -netdev tap,id=hostnet1,vhost=on,script=no,downscript=no
+# -device virtio-net-pci,netdev=hostnet1,iommu_platform=on,disable-legacy=on
+
+from lib.py import ksft_exit, ksft_run
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import NetDrvEnv
+from lib.py import bkg, ip, cmd, ethtool
+import time
+
+def _get_rx_ring_entries(cfg):
+    output = ethtool(f"-g {cfg.ifname}", json=True)
+    return output[0]["rx"]
+
+def setup_xsk(cfg, xdp_queue_id = 0) -> bkg:
+    # Probe for support
+    xdp = cmd(f'{cfg.net_lib_dir / "xdp_helper"} - -', fail=False)
+    if xdp.ret == 255:
+        raise KsftSkipEx('AF_XDP unsupported')
+    elif xdp.ret > 0:
+        raise KsftFailEx('unable to create AF_XDP socket')
+
+    try:
+        return bkg(f'{cfg.net_lib_dir / "xdp_helper"} {cfg.ifindex} ' \
+                   '{xdp_queue_id} -z', ksft_wait=3)
+    except:
+        raise KsftSkipEx('Failed to bind XDP socket in zerocopy.\n' \
+                         'Please consider adding iommu_platform=on ' \
+                         'when setting up virtio-net-pci')
+
+def check_xdp_bind(cfg):
+    with setup_xsk(cfg):
+        ip(f"link set dev %s xdp obj %s sec xdp" %
+           (cfg.ifname, cfg.net_lib_dir / "xdp_dummy.bpf.o"))
+        ip(f"link set dev %s xdp off" % cfg.ifname)
+
+def check_rx_resize(cfg):
+    with setup_xsk(cfg):
+        rx_ring = _get_rx_ring_entries(cfg)
+        ethtool(f"-G %s rx %d" % (cfg.ifname, rx_ring // 2))
+        ethtool(f"-G %s rx %d" % (cfg.ifname, rx_ring))
+
+def main():
+    with NetDrvEnv(__file__, nsim_test=False) as cfg:
+        ksft_run([check_xdp_bind, check_rx_resize],
+                 args=(cfg, ))
+    ksft_exit()
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/lib/py/__init__.py b/tools/testing/selftests/drivers/net/lib/py/__init__.py
new file mode 100644
index 000000000000..8b75faa9af6d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/__init__.py
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Driver test environment.
+NetDrvEnv and NetDrvEpEnv are the main environment classes.
+Former is for local host only tests, latter creates / connects
+to a remote endpoint. See NIPA wiki for more information about
+running and writing driver tests.
+"""
+
+import sys
+from pathlib import Path
+
+KSFT_DIR = (Path(__file__).parent / "../../../..").resolve()
+
+try:
+    sys.path.append(KSFT_DIR.as_posix())
+
+    # Import one by one to avoid pylint false positives
+    from net.lib.py import NetNS, NetNSEnter, NetdevSimDev
+    from net.lib.py import EthtoolFamily, NetdevFamily, NetshaperFamily, \
+        NlError, RtnlFamily, DevlinkFamily, PSPFamily
+    from net.lib.py import CmdExitFailure
+    from net.lib.py import bkg, cmd, bpftool, bpftrace, defer, ethtool, \
+        fd_read_timeout, ip, rand_port, wait_port_listen, wait_file
+    from net.lib.py import KsftSkipEx, KsftFailEx, KsftXfailEx
+    from net.lib.py import ksft_disruptive, ksft_exit, ksft_pr, ksft_run, \
+        ksft_setup, ksft_variants, KsftNamedVariant
+    from net.lib.py import ksft_eq, ksft_ge, ksft_in, ksft_is, ksft_lt, \
+        ksft_ne, ksft_not_in, ksft_raises, ksft_true, ksft_gt, ksft_not_none
+
+    __all__ = ["NetNS", "NetNSEnter", "NetdevSimDev",
+               "EthtoolFamily", "NetdevFamily", "NetshaperFamily",
+               "NlError", "RtnlFamily", "DevlinkFamily", "PSPFamily",
+               "CmdExitFailure",
+               "bkg", "cmd", "bpftool", "bpftrace", "defer", "ethtool",
+               "fd_read_timeout", "ip", "rand_port",
+               "wait_port_listen", "wait_file",
+               "KsftSkipEx", "KsftFailEx", "KsftXfailEx",
+               "ksft_disruptive", "ksft_exit", "ksft_pr", "ksft_run",
+               "ksft_setup", "ksft_variants", "KsftNamedVariant",
+               "ksft_eq", "ksft_ge", "ksft_in", "ksft_is", "ksft_lt",
+               "ksft_ne", "ksft_not_in", "ksft_raises", "ksft_true", "ksft_gt",
+               "ksft_not_none", "ksft_not_none"]
+
+    from .env import NetDrvEnv, NetDrvEpEnv
+    from .load import GenerateTraffic, Iperf3Runner
+    from .remote import Remote
+
+    __all__ += ["NetDrvEnv", "NetDrvEpEnv", "GenerateTraffic", "Remote",
+                "Iperf3Runner"]
+except ModuleNotFoundError as e:
+    print("Failed importing `net` library from kernel sources")
+    print(str(e))
+    sys.exit(4)
diff --git a/tools/testing/selftests/drivers/net/lib/py/env.py b/tools/testing/selftests/drivers/net/lib/py/env.py
new file mode 100644
index 000000000000..8b644fd84ff2
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/env.py
@@ -0,0 +1,287 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+import time
+from pathlib import Path
+from lib.py import KsftSkipEx, KsftXfailEx
+from lib.py import ksft_setup, wait_file
+from lib.py import cmd, ethtool, ip, CmdExitFailure
+from lib.py import NetNS, NetdevSimDev
+from .remote import Remote
+
+
+class NetDrvEnvBase:
+    """
+    Base class for a NIC / host environments
+
+    Attributes:
+      test_dir: Path to the source directory of the test
+      net_lib_dir: Path to the net/lib directory
+    """
+    def __init__(self, src_path):
+        self.src_path = Path(src_path)
+        self.test_dir = self.src_path.parent.resolve()
+        self.net_lib_dir = (Path(__file__).parent / "../../../../net/lib").resolve()
+
+        self.env = self._load_env_file()
+
+        # Following attrs must be set be inheriting classes
+        self.dev = None
+
+    def _load_env_file(self):
+        env = os.environ.copy()
+
+        src_dir = Path(self.src_path).parent.resolve()
+        if not (src_dir / "net.config").exists():
+            return ksft_setup(env)
+
+        with open((src_dir / "net.config").as_posix(), 'r') as fp:
+            for line in fp.readlines():
+                full_file = line
+                # Strip comments
+                pos = line.find("#")
+                if pos >= 0:
+                    line = line[:pos]
+                line = line.strip()
+                if not line:
+                    continue
+                pair = line.split('=', maxsplit=1)
+                if len(pair) != 2:
+                    raise Exception("Can't parse configuration line:", full_file)
+                env[pair[0]] = pair[1]
+        return ksft_setup(env)
+
+    def __del__(self):
+        pass
+
+    def __enter__(self):
+        ip(f"link set dev {self.dev['ifname']} up")
+        wait_file(f"/sys/class/net/{self.dev['ifname']}/carrier",
+                  lambda x: x.strip() == "1")
+
+        return self
+
+    def __exit__(self, ex_type, ex_value, ex_tb):
+        """
+        __exit__ gets called at the end of a "with" block.
+        """
+        self.__del__()
+
+
+class NetDrvEnv(NetDrvEnvBase):
+    """
+    Class for a single NIC / host env, with no remote end
+    """
+    def __init__(self, src_path, nsim_test=None, **kwargs):
+        super().__init__(src_path)
+
+        self._ns = None
+
+        if 'NETIF' in self.env:
+            if nsim_test is True:
+                raise KsftXfailEx("Test only works on netdevsim")
+
+            self.dev = ip("-d link show dev " + self.env['NETIF'], json=True)[0]
+        else:
+            if nsim_test is False:
+                raise KsftXfailEx("Test does not work on netdevsim")
+
+            self._ns = NetdevSimDev(**kwargs)
+            self.dev = self._ns.nsims[0].dev
+        self.ifname = self.dev['ifname']
+        self.ifindex = self.dev['ifindex']
+
+    def __del__(self):
+        if self._ns:
+            self._ns.remove()
+            self._ns = None
+
+
+class NetDrvEpEnv(NetDrvEnvBase):
+    """
+    Class for an environment with a local device and "remote endpoint"
+    which can be used to send traffic in.
+
+    For local testing it creates two network namespaces and a pair
+    of netdevsim devices.
+    """
+
+    # Network prefixes used for local tests
+    nsim_v4_pfx = "192.0.2."
+    nsim_v6_pfx = "2001:db8::"
+
+    def __init__(self, src_path, nsim_test=None):
+        super().__init__(src_path)
+
+        self._stats_settle_time = None
+
+        # Things we try to destroy
+        self.remote = None
+        # These are for local testing state
+        self._netns = None
+        self._ns = None
+        self._ns_peer = None
+
+        self.addr_v        = { "4": None, "6": None }
+        self.remote_addr_v = { "4": None, "6": None }
+
+        if "NETIF" in self.env:
+            if nsim_test is True:
+                raise KsftXfailEx("Test only works on netdevsim")
+            self._check_env()
+
+            self.dev = ip("-d link show dev " + self.env['NETIF'], json=True)[0]
+
+            self.addr_v["4"] = self.env.get("LOCAL_V4")
+            self.addr_v["6"] = self.env.get("LOCAL_V6")
+            self.remote_addr_v["4"] = self.env.get("REMOTE_V4")
+            self.remote_addr_v["6"] = self.env.get("REMOTE_V6")
+            kind = self.env["REMOTE_TYPE"]
+            args = self.env["REMOTE_ARGS"]
+        else:
+            if nsim_test is False:
+                raise KsftXfailEx("Test does not work on netdevsim")
+
+            self.create_local()
+
+            self.dev = self._ns.nsims[0].dev
+
+            self.addr_v["4"] = self.nsim_v4_pfx + "1"
+            self.addr_v["6"] = self.nsim_v6_pfx + "1"
+            self.remote_addr_v["4"] = self.nsim_v4_pfx + "2"
+            self.remote_addr_v["6"] = self.nsim_v6_pfx + "2"
+            kind = "netns"
+            args = self._netns.name
+
+        self.remote = Remote(kind, args, src_path)
+
+        self.addr_ipver = "6" if self.addr_v["6"] else "4"
+        self.addr = self.addr_v[self.addr_ipver]
+        self.remote_addr = self.remote_addr_v[self.addr_ipver]
+
+        # Bracketed addresses, some commands need IPv6 to be inside []
+        self.baddr = f"[{self.addr_v['6']}]" if self.addr_v["6"] else self.addr_v["4"]
+        self.remote_baddr = f"[{self.remote_addr_v['6']}]" if self.remote_addr_v["6"] else self.remote_addr_v["4"]
+
+        self.ifname = self.dev['ifname']
+        self.ifindex = self.dev['ifindex']
+
+        # resolve remote interface name
+        self.remote_ifname = self.resolve_remote_ifc()
+        self.remote_dev = ip("-d link show dev " + self.remote_ifname,
+                             host=self.remote, json=True)[0]
+
+        self._required_cmd = {}
+
+    def create_local(self):
+        self._netns = NetNS()
+        self._ns = NetdevSimDev()
+        self._ns_peer = NetdevSimDev(ns=self._netns)
+
+        with open("/proc/self/ns/net") as nsfd0, \
+             open("/var/run/netns/" + self._netns.name) as nsfd1:
+            ifi0 = self._ns.nsims[0].ifindex
+            ifi1 = self._ns_peer.nsims[0].ifindex
+            NetdevSimDev.ctrl_write('link_device',
+                                    f'{nsfd0.fileno()}:{ifi0} {nsfd1.fileno()}:{ifi1}')
+
+        ip(f"   addr add dev {self._ns.nsims[0].ifname} {self.nsim_v4_pfx}1/24")
+        ip(f"-6 addr add dev {self._ns.nsims[0].ifname} {self.nsim_v6_pfx}1/64 nodad")
+        ip(f"   link set dev {self._ns.nsims[0].ifname} up")
+
+        ip(f"   addr add dev {self._ns_peer.nsims[0].ifname} {self.nsim_v4_pfx}2/24", ns=self._netns)
+        ip(f"-6 addr add dev {self._ns_peer.nsims[0].ifname} {self.nsim_v6_pfx}2/64 nodad", ns=self._netns)
+        ip(f"   link set dev {self._ns_peer.nsims[0].ifname} up", ns=self._netns)
+
+    def _check_env(self):
+        vars_needed = [
+            ["LOCAL_V4", "LOCAL_V6"],
+            ["REMOTE_V4", "REMOTE_V6"],
+            ["REMOTE_TYPE"],
+            ["REMOTE_ARGS"]
+        ]
+        missing = []
+
+        for choice in vars_needed:
+            for entry in choice:
+                if entry in self.env:
+                    break
+            else:
+                missing.append(choice)
+        # Make sure v4 / v6 configs are symmetric
+        if ("LOCAL_V6" in self.env) != ("REMOTE_V6" in self.env):
+            missing.append(["LOCAL_V6", "REMOTE_V6"])
+        if ("LOCAL_V4" in self.env) != ("REMOTE_V4" in self.env):
+            missing.append(["LOCAL_V4", "REMOTE_V4"])
+        if missing:
+            raise Exception("Invalid environment, missing configuration:", missing,
+                            "Please see tools/testing/selftests/drivers/net/README.rst")
+
+    def resolve_remote_ifc(self):
+        v4 = v6 = None
+        if self.remote_addr_v["4"]:
+            v4 = ip("addr show to " + self.remote_addr_v["4"], json=True, host=self.remote)
+        if self.remote_addr_v["6"]:
+            v6 = ip("addr show to " + self.remote_addr_v["6"], json=True, host=self.remote)
+        if v4 and v6 and v4[0]["ifname"] != v6[0]["ifname"]:
+            raise Exception("Can't resolve remote interface name, v4 and v6 don't match")
+        if (v4 and len(v4) > 1) or (v6 and len(v6) > 1):
+            raise Exception("Can't resolve remote interface name, multiple interfaces match")
+        return v6[0]["ifname"] if v6 else v4[0]["ifname"]
+
+    def __del__(self):
+        if self._ns:
+            self._ns.remove()
+            self._ns = None
+        if self._ns_peer:
+            self._ns_peer.remove()
+            self._ns_peer = None
+        if self._netns:
+            del self._netns
+            self._netns = None
+        if self.remote:
+            del self.remote
+            self.remote = None
+
+    def require_ipver(self, ipver):
+        if not self.addr_v[ipver] or not self.remote_addr_v[ipver]:
+            raise KsftSkipEx(f"Test requires IPv{ipver} connectivity")
+
+    def require_nsim(self):
+        if self._ns is None:
+            raise KsftXfailEx("Test only works on netdevsim")
+
+    def _require_cmd(self, comm, key, host=None):
+        cached = self._required_cmd.get(comm, {})
+        if cached.get(key) is None:
+            cached[key] = cmd("command -v -- " + comm, fail=False,
+                              shell=True, host=host).ret == 0
+        self._required_cmd[comm] = cached
+        return cached[key]
+
+    def require_cmd(self, comm, local=True, remote=False):
+        if local:
+            if not self._require_cmd(comm, "local"):
+                raise KsftSkipEx("Test requires command: " + comm)
+        if remote:
+            if not self._require_cmd(comm, "remote", host=self.remote):
+                raise KsftSkipEx("Test requires (remote) command: " + comm)
+
+    def wait_hw_stats_settle(self):
+        """
+        Wait for HW stats to become consistent, some devices DMA HW stats
+        periodically so events won't be reflected until next sync.
+        Good drivers will tell us via ethtool what their sync period is.
+        """
+        if self._stats_settle_time is None:
+            data = {}
+            try:
+                data = ethtool("-c " + self.ifname, json=True)[0]
+            except CmdExitFailure as e:
+                if "Operation not supported" not in e.cmd.stderr:
+                    raise
+
+            self._stats_settle_time = 0.025 + \
+                data.get('stats-block-usecs', 0) / 1000 / 1000
+
+        time.sleep(self._stats_settle_time)
diff --git a/tools/testing/selftests/drivers/net/lib/py/load.py b/tools/testing/selftests/drivers/net/lib/py/load.py
new file mode 100644
index 000000000000..f181fa2d38fc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/load.py
@@ -0,0 +1,139 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import re
+import time
+import json
+
+from lib.py import ksft_pr, cmd, ip, rand_port, wait_port_listen
+
+
+class Iperf3Runner:
+    """
+    Sets up and runs iperf3 traffic.
+    """
+    def __init__(self, env, port=None, server_ip=None, client_ip=None):
+        env.require_cmd("iperf3", local=True, remote=True)
+        self.env = env
+        self.port = rand_port() if port is None else port
+        self.server_ip = server_ip
+        self.client_ip = client_ip
+
+    def _build_server(self):
+        cmdline = f"iperf3 -s -1 -p {self.port}"
+        if self.server_ip:
+            cmdline += f" -B {self.server_ip}"
+        return cmdline
+
+    def _build_client(self, streams, duration, reverse):
+        host = self.env.addr if self.server_ip is None else self.server_ip
+        cmdline = f"iperf3 -c {host} -p {self.port} -P {streams} -t {duration} -J"
+        if self.client_ip:
+            cmdline += f" -B {self.client_ip}"
+        if reverse:
+            cmdline += " --reverse"
+        return cmdline
+
+    def start_server(self):
+        """
+        Starts an iperf3 server with optional bind IP.
+        """
+        cmdline = self._build_server()
+        proc = cmd(cmdline, background=True)
+        wait_port_listen(self.port)
+        time.sleep(0.1)
+        return proc
+
+    def start_client(self, background=False, streams=1, duration=10, reverse=False):
+        """
+        Starts the iperf3 client with the configured options.
+        """
+        cmdline = self._build_client(streams, duration, reverse)
+        return cmd(cmdline, background=background, host=self.env.remote)
+
+    def measure_bandwidth(self, reverse=False):
+        """
+        Runs an iperf3 measurement and returns the average bandwidth (Gbps).
+        Discards the first and last few reporting intervals and uses only the
+        middle part of the run where throughput is typically stable.
+        """
+        self.start_server()
+        result = self.start_client(duration=10, reverse=reverse)
+
+        if result.ret != 0:
+            raise RuntimeError("iperf3 failed to run successfully")
+        try:
+            out = json.loads(result.stdout)
+        except json.JSONDecodeError as exc:
+            raise ValueError("Failed to parse iperf3 JSON output") from exc
+
+        intervals = out.get("intervals", [])
+        samples = [i["sum"]["bits_per_second"] / 1e9 for i in intervals]
+        if len(samples) < 10:
+            raise ValueError(f"iperf3 returned too few intervals: {len(samples)}")
+        # Discard potentially unstable first and last 3 seconds.
+        stable = samples[3:-3]
+
+        avg = sum(stable) / len(stable)
+
+        return avg
+
+
+class GenerateTraffic:
+    def __init__(self, env, port=None):
+        self.env = env
+        self.runner = Iperf3Runner(env, port)
+
+        self._iperf_server = self.runner.start_server()
+        self._iperf_client = self.runner.start_client(background=True, streams=16, duration=86400)
+
+        # Wait for traffic to ramp up
+        if not self._wait_pkts(pps=1000):
+            self.stop(verbose=True)
+            raise Exception("iperf3 traffic did not ramp up")
+
+    def _wait_pkts(self, pkt_cnt=None, pps=None):
+        """
+        Wait until we've seen pkt_cnt or until traffic ramps up to pps.
+        Only one of pkt_cnt or pss can be specified.
+        """
+        pkt_start = ip("-s link show dev " + self.env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
+        for _ in range(50):
+            time.sleep(0.1)
+            pkt_now = ip("-s link show dev " + self.env.ifname, json=True)[0]["stats64"]["rx"]["packets"]
+            if pps:
+                if pkt_now - pkt_start > pps / 10:
+                    return True
+                pkt_start = pkt_now
+            elif pkt_cnt:
+                if pkt_now - pkt_start > pkt_cnt:
+                    return True
+        return False
+
+    def wait_pkts_and_stop(self, pkt_cnt):
+        failed = not self._wait_pkts(pkt_cnt=pkt_cnt)
+        self.stop(verbose=failed)
+
+    def stop(self, verbose=None):
+        self._iperf_client.process(terminate=True)
+        if verbose:
+            ksft_pr(">> Client:")
+            ksft_pr(self._iperf_client.stdout)
+            ksft_pr(self._iperf_client.stderr)
+        self._iperf_server.process(terminate=True)
+        if verbose:
+            ksft_pr(">> Server:")
+            ksft_pr(self._iperf_server.stdout)
+            ksft_pr(self._iperf_server.stderr)
+        self._wait_client_stopped()
+
+    def _wait_client_stopped(self, sleep=0.005, timeout=5):
+        end = time.monotonic() + timeout
+
+        live_port_pattern = re.compile(fr":{self.runner.port:04X} 0[^6] ")
+
+        while time.monotonic() < end:
+            data = cmd("cat /proc/net/tcp*", host=self.env.remote).stdout
+            if not live_port_pattern.search(data):
+                return
+            time.sleep(sleep)
+        raise Exception(f"Waiting for client to stop timed out after {timeout}s")
diff --git a/tools/testing/selftests/drivers/net/lib/py/remote.py b/tools/testing/selftests/drivers/net/lib/py/remote.py
new file mode 100644
index 000000000000..b1780b987722
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/remote.py
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+import importlib
+
+_modules = {}
+
+def Remote(kind, args, src_path):
+    global _modules
+
+    if kind not in _modules:
+        _modules[kind] = importlib.import_module("..remote_" + kind, __name__)
+
+    dir_path = os.path.abspath(src_path + "/../")
+    return getattr(_modules[kind], "Remote")(args, dir_path)
diff --git a/tools/testing/selftests/drivers/net/lib/py/remote_netns.py b/tools/testing/selftests/drivers/net/lib/py/remote_netns.py
new file mode 100644
index 000000000000..7d5eeb0271bc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/remote_netns.py
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+import subprocess
+
+from lib.py import cmd
+
+
+class Remote:
+    def __init__(self, name, dir_path):
+        self.name = name
+        self.dir_path = dir_path
+
+    def cmd(self, comm):
+        return subprocess.Popen(["ip", "netns", "exec", self.name, "bash", "-c", comm],
+                                 stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    def deploy(self, what):
+        if os.path.isabs(what):
+            return what
+        return os.path.abspath(self.dir_path + "/" + what)
diff --git a/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py b/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
new file mode 100644
index 000000000000..924addde19a3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/py/remote_ssh.py
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+import string
+import subprocess
+import random
+
+from lib.py import cmd
+
+
+class Remote:
+    def __init__(self, name, dir_path):
+        self.name = name
+        self.dir_path = dir_path
+        self._tmpdir = None
+
+    def __del__(self):
+        if self._tmpdir:
+            cmd("rm -rf " + self._tmpdir, host=self)
+            self._tmpdir = None
+
+    def cmd(self, comm):
+        return subprocess.Popen(["ssh", "-q", self.name, comm],
+                                stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+    def _mktmp(self):
+        return ''.join(random.choice(string.ascii_lowercase) for _ in range(8))
+
+    def deploy(self, what):
+        if not self._tmpdir:
+            self._tmpdir = "/tmp/" + self._mktmp()
+            cmd("mkdir " + self._tmpdir, host=self)
+        file_name = self._tmpdir + "/" + self._mktmp() + os.path.basename(what)
+
+        if not os.path.isabs(what):
+            what = os.path.abspath(self.dir_path + "/" + what)
+
+        cmd(f"scp {what} {self.name}:{file_name}")
+        return file_name
diff --git a/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh
new file mode 100644
index 000000000000..ae8abff4be40
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/lib/sh/lib_netcons.sh
@@ -0,0 +1,419 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This file contains functions and helpers to support the netconsole
+# selftests
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+LIBDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+SRCIF="" # to be populated later
+SRCIP="" # to be populated later
+SRCIP4="192.0.2.1"
+SRCIP6="fc00::1"
+DSTIF="" # to be populated later
+DSTIP="" # to be populated later
+DSTIP4="192.0.2.2"
+DSTIP6="fc00::2"
+
+PORT="6666"
+MSG="netconsole selftest"
+USERDATA_KEY="key"
+USERDATA_VALUE="value"
+TARGET=$(mktemp -u netcons_XXXXX)
+DEFAULT_PRINTK_VALUES=$(cat /proc/sys/kernel/printk)
+NETCONS_CONFIGFS="/sys/kernel/config/netconsole"
+NETCONS_PATH="${NETCONS_CONFIGFS}"/"${TARGET}"
+# NAMESPACE will be populated by setup_ns with a random value
+NAMESPACE=""
+
+# IDs for netdevsim. We either use NSIM_DEV_{1,2}_ID for standard test
+# or NSIM_BOND_{T,R}X_{1,2} for the bonding tests. Not both at the
+# same time.
+NSIM_DEV_1_ID=$((256 + RANDOM % 256))
+NSIM_DEV_2_ID=$((512 + RANDOM % 256))
+NSIM_BOND_TX_1=$((768 + RANDOM % 256))
+NSIM_BOND_TX_2=$((1024 + RANDOM % 256))
+NSIM_BOND_RX_1=$((1280 + RANDOM % 256))
+NSIM_BOND_RX_2=$((1536 + RANDOM % 256))
+NSIM_DEV_SYS_NEW="/sys/bus/netdevsim/new_device"
+NSIM_DEV_SYS_LINK="/sys/bus/netdevsim/link_device"
+
+# Used to create and delete namespaces
+source "${LIBDIR}"/../../../../net/lib.sh
+
+# Create netdevsim interfaces
+create_ifaces() {
+	echo "$NSIM_DEV_2_ID" > "$NSIM_DEV_SYS_NEW"
+	echo "$NSIM_DEV_1_ID" > "$NSIM_DEV_SYS_NEW"
+	udevadm settle 2> /dev/null || true
+
+	local NSIM1=/sys/bus/netdevsim/devices/netdevsim"$NSIM_DEV_1_ID"
+	local NSIM2=/sys/bus/netdevsim/devices/netdevsim"$NSIM_DEV_2_ID"
+
+	# These are global variables
+	SRCIF=$(find "$NSIM1"/net -maxdepth 1 -type d ! \
+		-path "$NSIM1"/net -exec basename {} \;)
+	DSTIF=$(find "$NSIM2"/net -maxdepth 1 -type d ! \
+		-path "$NSIM2"/net -exec basename {} \;)
+}
+
+link_ifaces() {
+	local NSIM_DEV_SYS_LINK="/sys/bus/netdevsim/link_device"
+	local SRCIF_IFIDX=$(cat /sys/class/net/"$SRCIF"/ifindex)
+	local DSTIF_IFIDX=$(cat /sys/class/net/"$DSTIF"/ifindex)
+
+	exec {NAMESPACE_FD}</var/run/netns/"${NAMESPACE}"
+	exec {INITNS_FD}</proc/self/ns/net
+
+	# Bind the dst interface to namespace
+	ip link set "${DSTIF}" netns "${NAMESPACE}"
+
+	# Linking one device to the other one (on the other namespace}
+	if ! echo "${INITNS_FD}:$SRCIF_IFIDX $NAMESPACE_FD:$DSTIF_IFIDX"  > $NSIM_DEV_SYS_LINK
+	then
+		echo "linking netdevsim1 with netdevsim2 should succeed"
+		cleanup
+		exit "${ksft_skip}"
+	fi
+}
+
+function configure_ip() {
+	# Configure the IPs for both interfaces
+	ip netns exec "${NAMESPACE}" ip addr add "${DSTIP}"/24 dev "${DSTIF}"
+	ip netns exec "${NAMESPACE}" ip link set "${DSTIF}" up
+
+	ip addr add "${SRCIP}"/24 dev "${SRCIF}"
+	ip link set "${SRCIF}" up
+}
+
+function select_ipv4_or_ipv6()
+{
+	local VERSION=${1}
+
+	if [[ "$VERSION" == "ipv6" ]]
+	then
+		DSTIP="${DSTIP6}"
+		SRCIP="${SRCIP6}"
+	else
+		DSTIP="${DSTIP4}"
+		SRCIP="${SRCIP4}"
+	fi
+}
+
+function set_network() {
+	local IP_VERSION=${1:-"ipv4"}
+
+	# setup_ns function is coming from lib.sh
+	setup_ns NAMESPACE
+
+	# Create both interfaces, and assign the destination to a different
+	# namespace
+	create_ifaces
+
+	# Link both interfaces back to back
+	link_ifaces
+
+	select_ipv4_or_ipv6 "${IP_VERSION}"
+	configure_ip
+}
+
+function _create_dynamic_target() {
+	local FORMAT="${1:?FORMAT parameter required}"
+	local NCPATH="${2:?NCPATH parameter required}"
+
+	DSTMAC=$(ip netns exec "${NAMESPACE}" \
+		 ip link show "${DSTIF}" | awk '/ether/ {print $2}')
+
+	# Create a dynamic target
+	mkdir "${NCPATH}"
+
+	echo "${DSTIP}" > "${NCPATH}"/remote_ip
+	echo "${SRCIP}" > "${NCPATH}"/local_ip
+	echo "${DSTMAC}" > "${NCPATH}"/remote_mac
+	echo "${SRCIF}" > "${NCPATH}"/dev_name
+
+	if [ "${FORMAT}" == "basic" ]
+	then
+		# Basic target does not support release
+		echo 0 > "${NCPATH}"/release
+		echo 0 > "${NCPATH}"/extended
+	elif [ "${FORMAT}" == "extended" ]
+	then
+		echo 1 > "${NCPATH}"/extended
+	fi
+}
+
+function create_dynamic_target() {
+	local FORMAT=${1:-"extended"}
+	local NCPATH=${2:-"$NETCONS_PATH"}
+	_create_dynamic_target "${FORMAT}" "${NCPATH}"
+
+	echo 1 > "${NCPATH}"/enabled
+
+	# This will make sure that the kernel was able to
+	# load the netconsole driver configuration. The console message
+	# gets more organized/sequential as well.
+	sleep 1
+}
+
+# Generate the command line argument for netconsole following:
+#  netconsole=[+][src-port]@[src-ip]/[<dev>],[tgt-port]@<tgt-ip>/[tgt-macaddr]
+function create_cmdline_str() {
+	local BINDMODE=${1:-"ifname"}
+	if [ "${BINDMODE}" == "ifname" ]
+	then
+		SRCDEV=${SRCIF}
+	else
+		SRCDEV=$(mac_get "${SRCIF}")
+	fi
+
+	DSTMAC=$(ip netns exec "${NAMESPACE}" \
+		 ip link show "${DSTIF}" | awk '/ether/ {print $2}')
+	SRCPORT="1514"
+	TGTPORT="6666"
+
+	echo "netconsole=\"+${SRCPORT}@${SRCIP}/${SRCDEV},${TGTPORT}@${DSTIP}/${DSTMAC}\""
+}
+
+# Do not append the release to the header of the message
+function disable_release_append() {
+	echo 0 > "${NETCONS_PATH}"/enabled
+	echo 0 > "${NETCONS_PATH}"/release
+	echo 1 > "${NETCONS_PATH}"/enabled
+}
+
+function do_cleanup() {
+	local NSIM_DEV_SYS_DEL="/sys/bus/netdevsim/del_device"
+
+	# Delete netdevsim devices
+	echo "$NSIM_DEV_2_ID" > "$NSIM_DEV_SYS_DEL"
+	echo "$NSIM_DEV_1_ID" > "$NSIM_DEV_SYS_DEL"
+
+	# this is coming from lib.sh
+	cleanup_all_ns
+
+	# Restoring printk configurations
+	echo "${DEFAULT_PRINTK_VALUES}" > /proc/sys/kernel/printk
+}
+
+function cleanup_netcons() {
+	# delete netconsole dynamic reconfiguration
+	# do not fail if the target is already disabled
+	if [[ ! -d "${NETCONS_PATH}" ]]
+	then
+		# in some cases this is called before netcons path is created
+		return
+	fi
+	if [[ $(cat "${NETCONS_PATH}"/enabled) != 0 ]]
+	then
+		echo 0 > "${NETCONS_PATH}"/enabled || true
+	fi
+	# Remove all the keys that got created during the selftest
+	find "${NETCONS_PATH}/userdata/" -mindepth 1 -type d -delete
+	# Remove the configfs entry
+	rmdir "${NETCONS_PATH}"
+}
+
+function cleanup() {
+	cleanup_netcons
+	do_cleanup
+}
+
+function set_user_data() {
+	if [[ ! -d "${NETCONS_PATH}""/userdata" ]]
+	then
+		echo "Userdata path not available in ${NETCONS_PATH}/userdata"
+		exit "${ksft_skip}"
+	fi
+
+	KEY_PATH="${NETCONS_PATH}/userdata/${USERDATA_KEY}"
+	mkdir -p "${KEY_PATH}"
+	VALUE_PATH="${KEY_PATH}""/value"
+	echo "${USERDATA_VALUE}" > "${VALUE_PATH}"
+}
+
+function listen_port_and_save_to() {
+	local OUTPUT=${1}
+	local IPVERSION=${2:-"ipv4"}
+
+	if [ "${IPVERSION}" == "ipv4" ]
+	then
+		SOCAT_MODE="UDP-LISTEN"
+	else
+		SOCAT_MODE="UDP6-LISTEN"
+	fi
+
+	# Just wait for 2 seconds
+	timeout 2 ip netns exec "${NAMESPACE}" \
+		socat "${SOCAT_MODE}":"${PORT}",fork "${OUTPUT}" 2> /dev/null
+}
+
+# Only validate that the message arrived properly
+function validate_msg() {
+	local TMPFILENAME="$1"
+
+	# Check if the file exists
+	if [ ! -f "$TMPFILENAME" ]; then
+		echo "FAIL: File was not generated." >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "${MSG}" "${TMPFILENAME}"; then
+		echo "FAIL: ${MSG} not found in ${TMPFILENAME}" >&2
+		cat "${TMPFILENAME}" >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+# Validate the message and userdata
+function validate_result() {
+	local TMPFILENAME="$1"
+
+	# TMPFILENAME will contain something like:
+	# 6.11.1-0_fbk0_rc13_509_g30d75cea12f7,13,1822,115075213798,-;netconsole selftest: netcons_gtJHM
+	#  key=value
+
+	validate_msg "${TMPFILENAME}"
+
+	# userdata is not supported on basic format target,
+	# thus, do not validate it.
+	if [ "${FORMAT}" != "basic" ];
+	then
+		if ! grep -q "${USERDATA_KEY}=${USERDATA_VALUE}" "${TMPFILENAME}"; then
+			echo "FAIL: ${USERDATA_KEY}=${USERDATA_VALUE} not found in ${TMPFILENAME}" >&2
+			cat "${TMPFILENAME}" >&2
+			exit "${ksft_fail}"
+		fi
+	fi
+
+	# Delete the file once it is validated, otherwise keep it
+	# for debugging purposes
+	rm "${TMPFILENAME}"
+}
+
+function check_for_dependencies() {
+	if [ "$(id -u)" -ne 0 ]; then
+		echo "This test must be run as root" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if ! which socat > /dev/null ; then
+		echo "SKIP: socat(1) is not available" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if ! which ip > /dev/null ; then
+		echo "SKIP: ip(1) is not available" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if ! which udevadm > /dev/null ; then
+		echo "SKIP: udevadm(1) is not available" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if [ ! -f /proc/net/if_inet6 ]; then
+		echo "SKIP: IPv6 not configured. Check if CONFIG_IPV6 is enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if [ ! -f "${NSIM_DEV_SYS_NEW}" ]; then
+		echo "SKIP: file ${NSIM_DEV_SYS_NEW} does not exist. Check if CONFIG_NETDEVSIM is enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if [ ! -d "${NETCONS_CONFIGFS}" ]; then
+		echo "SKIP: directory ${NETCONS_CONFIGFS} does not exist. Check if NETCONSOLE_DYNAMIC is enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if ip link show "${DSTIF}" 2> /dev/null; then
+		echo "SKIP: interface ${DSTIF} exists in the system. Not overwriting it." >&2
+		exit "${ksft_skip}"
+	fi
+
+	REGEXP4="inet.*(${SRCIP4}|${DSTIP4})"
+	REGEXP6="inet.*(${SRCIP6}|${DSTIP6})"
+	if ip addr list | grep -E "${REGEXP4}" 2> /dev/null; then
+		echo "SKIP: IPv4s already in use. Skipping it" >&2
+		exit "${ksft_skip}"
+	fi
+
+	if ip addr list | grep -E "${REGEXP6}" 2> /dev/null; then
+		echo "SKIP: IPv6s already in use. Skipping it" >&2
+		exit "${ksft_skip}"
+	fi
+}
+
+function check_for_taskset() {
+	if ! which taskset > /dev/null ; then
+		echo "SKIP: taskset(1) is not available" >&2
+		exit "${ksft_skip}"
+	fi
+}
+
+# This is necessary if running multiple tests in a row
+function pkill_socat() {
+	PROCESS_NAME4="socat UDP-LISTEN:6666,fork ${OUTPUT_FILE}"
+	PROCESS_NAME6="socat UDP6-LISTEN:6666,fork ${OUTPUT_FILE}"
+	# socat runs under timeout(1), kill it if it is still alive
+	# do not fail if socat doesn't exist anymore
+	set +e
+	pkill -f "${PROCESS_NAME4}"
+	pkill -f "${PROCESS_NAME6}"
+	set -e
+}
+
+# Check if netconsole was compiled as a module, otherwise exit
+function check_netconsole_module() {
+	if modinfo netconsole | grep filename: | grep -q builtin
+	then
+		echo "SKIP: netconsole should be compiled as a module" >&2
+		exit "${ksft_skip}"
+	fi
+}
+
+# A wrapper to translate protocol version to udp version
+function wait_for_port() {
+	local NAMESPACE=${1}
+	local PORT=${2}
+	IP_VERSION=${3}
+
+	if [ "${IP_VERSION}" == "ipv6" ]
+	then
+		PROTOCOL="udp6"
+	else
+		PROTOCOL="udp"
+	fi
+
+	wait_local_port_listen "${NAMESPACE}" "${PORT}" "${PROTOCOL}"
+	# even after the port is open, let's wait 1 second before writing
+	# otherwise the packet could be missed, and the test will fail. Happens
+	# more frequently on IPv6
+	sleep 1
+}
+
+# Clean up netdevsim ifaces created for bonding test
+function cleanup_bond_nsim() {
+	ip -n "${TXNS}" \
+		link delete "${BOND_TX_MAIN_IF}" type bond || true
+	ip -n "${RXNS}" \
+		link delete "${BOND_RX_MAIN_IF}" type bond || true
+
+	cleanup_netdevsim "$NSIM_BOND_TX_1"
+	cleanup_netdevsim "$NSIM_BOND_TX_2"
+	cleanup_netdevsim "$NSIM_BOND_RX_1"
+	cleanup_netdevsim "$NSIM_BOND_RX_2"
+}
+
+# cleanup tests that use bonding interfaces
+function cleanup_bond() {
+	cleanup_netcons
+	cleanup_bond_nsim
+	cleanup_all_ns
+	ip link delete "${VETH0}" || true
+}
diff --git a/tools/testing/selftests/drivers/net/microchip/ksz9477_qos.sh b/tools/testing/selftests/drivers/net/microchip/ksz9477_qos.sh
new file mode 100755
index 000000000000..82be5d013330
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/microchip/ksz9477_qos.sh
@@ -0,0 +1,668 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2024 Pengutronix, Oleksij Rempel <kernel@pengutronix.de>
+
+# The script is adopted to work with the Microchip KSZ switch driver.
+
+ETH_FCS_LEN=4
+
+WAIT_TIME=1
+NUM_NETIFS=4
+REQUIRE_JQ="yes"
+REQUIRE_MZ="yes"
+STABLE_MAC_ADDRS=yes
+NETIF_CREATE=no
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+require_command dcb
+
+h1=${NETIFS[p1]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p3]}
+h2=${NETIFS[p4]}
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+# On h1_ and h2_create do not set IP addresses to avoid interaction with the
+# system, to keep packet counters clean.
+h1_create()
+{
+	simple_if_init $h1
+	sysctl_set net.ipv6.conf.${h1}.disable_ipv6 1
+	# Get the MAC address of the interface to use it with mausezahn
+	h1_mac=$(ip -j link show dev ${h1} | jq -e '.[].address')
+}
+
+h1_destroy()
+{
+	sysctl_restore net.ipv6.conf.${h1}.disable_ipv6
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	sysctl_set net.ipv6.conf.${h2}.disable_ipv6 1
+	h2_mac=$(ip -j link show dev ${h2} | jq -e '.[].address')
+}
+
+h2_destroy()
+{
+	sysctl_restore net.ipv6.conf.${h2}.disable_ipv6
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	ip link set ${swp1} up
+	ip link set ${swp2} up
+	sysctl_set net.ipv6.conf.${swp1}.disable_ipv6 1
+	sysctl_set net.ipv6.conf.${swp2}.disable_ipv6 1
+
+	# Ports should trust VLAN PCP even with vlan_filtering=0
+	ip link add br0 type bridge
+	ip link set ${swp1} master br0
+	ip link set ${swp2} master br0
+	ip link set br0 up
+	sysctl_set net.ipv6.conf.br0.disable_ipv6 1
+}
+
+switch_destroy()
+{
+	sysctl_restore net.ipv6.conf.${swp2}.disable_ipv6
+	sysctl_restore net.ipv6.conf.${swp1}.disable_ipv6
+
+	ip link del br0
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+	switch_destroy
+
+	vrf_cleanup
+}
+
+set_apptrust_order()
+{
+	local if_name=$1
+	local order=$2
+
+	dcb apptrust set dev ${if_name} order ${order}
+}
+
+# Function to extract a specified field from a given JSON stats string
+extract_network_stat() {
+	local stats_json=$1
+	local field_name=$2
+
+	echo $(echo "$stats_json" | jq -r "$field_name")
+}
+
+run_test()
+{
+	local test_name=$1;
+	local apptrust_order=$2;
+	local port_prio=$3;
+	local dscp_ipv=$4;
+	local dscp=$5;
+	local have_vlan=$6;
+	local pcp_ipv=$7;
+	local vlan_pcp=$8;
+	local ip_v6=$9
+
+	local rx_ipv
+	local tx_ipv
+
+	RET=0
+
+	# Send some packet to populate the switch MAC table
+	$MZ ${h2} -a ${h2_mac} -b ${h1_mac} -p 64 -t icmp echores -c 1
+
+	# Based on the apptrust order, set the expected Internal Priority values
+	# for the RX and TX paths.
+	if [ "${apptrust_order}" == "" ]; then
+		echo "Apptrust order not set."
+		rx_ipv=${port_prio}
+		tx_ipv=${port_prio}
+	elif [ "${apptrust_order}" == "dscp" ]; then
+		echo "Apptrust order is DSCP."
+		rx_ipv=${dscp_ipv}
+		tx_ipv=${dscp_ipv}
+	elif [ "${apptrust_order}" == "pcp" ]; then
+		echo "Apptrust order is PCP."
+		rx_ipv=${pcp_ipv}
+		tx_ipv=${pcp_ipv}
+	elif [ "${apptrust_order}" == "pcp dscp" ]; then
+		echo "Apptrust order is PCP DSCP."
+		if [ ${have_vlan} -eq 1 ]; then
+			rx_ipv=$((dscp_ipv > pcp_ipv ? dscp_ipv : pcp_ipv))
+			tx_ipv=${pcp_ipv}
+		else
+			rx_ipv=${dscp_ipv}
+			tx_ipv=${dscp_ipv}
+		fi
+	else
+		RET=1
+		echo "Error: Unknown apptrust order ${apptrust_order}"
+		log_test "${test_name}"
+		return
+	fi
+
+	# Most/all? of the KSZ switches do not provide per-TC counters. There
+	# are only tx_hi and rx_hi counters, which are used to count packets
+	# which are considered as high priority and most likely not assigned
+	# to the queue 0.
+	# On the ingress path, packets seem to get high priority status
+	# independently of the DSCP or PCP global mapping. On the egress path,
+	# the high priority status is assigned based on the DSCP or PCP global
+	# map configuration.
+	# The thresholds for the high priority status are not documented, but
+	# it seems that the switch considers packets as high priority on the
+	# ingress path if detected Internal Priority is greater than 0. On the
+	# egress path, the switch considers packets as high priority if
+	# detected Internal Priority is greater than 1.
+	if [ ${rx_ipv} -ge 1 ]; then
+		local expect_rx_high_prio=1
+	else
+		local expect_rx_high_prio=0
+	fi
+
+	if [ ${tx_ipv} -ge 2 ]; then
+		local expect_tx_high_prio=1
+	else
+		local expect_tx_high_prio=0
+	fi
+
+	# Use ip tool to get the current switch packet counters. ethool stats
+	# need to be recalculated to get the correct values.
+	local swp1_stats=$(ip -s -j link show dev ${swp1})
+	local swp2_stats=$(ip -s -j link show dev ${swp2})
+	local swp1_rx_packets_before=$(extract_network_stat "$swp1_stats" \
+				       '.[0].stats64.rx.packets')
+	local swp1_rx_bytes_before=$(extract_network_stat "$swp1_stats" \
+				     '.[0].stats64.rx.bytes')
+	local swp2_tx_packets_before=$(extract_network_stat "$swp2_stats" \
+				       '.[0].stats64.tx.packets')
+	local swp2_tx_bytes_before=$(extract_network_stat "$swp2_stats" \
+				     '.[0].stats64.tx.bytes')
+	local swp1_rx_hi_before=$(ethtool_stats_get ${swp1} "rx_hi")
+	local swp2_tx_hi_before=$(ethtool_stats_get ${swp2} "tx_hi")
+
+	# Assamble the mausezahn command based on the test parameters
+	# For the testis with ipv4 or ipv6, use icmp response packets,
+	# to avoid interaction with the system, to keep packet counters
+	# clean.
+	if [ ${ip_v6} -eq 0 ]; then
+		local ip="-a ${h1_mac} -b ${h2_mac} -A ${H1_IPV4} \
+			  -B ${H2_IPV4} -t icmp unreach,code=1,dscp=${dscp}"
+	else
+		local ip="-6 -a ${h1_mac} -b ${h2_mac} -A ${H1_IPV6} \
+			  -B ${H2_IPV6} -t icmp6 type=1,code=0,dscp=${dscp}"
+	fi
+
+	if [ ${have_vlan} -eq 1 ]; then
+		local vlan_pcp_opt="-Q ${vlan_pcp}:0"
+	else
+		local vlan_pcp_opt=""
+	fi
+	$MZ ${h1} ${ip} -c ${PING_COUNT} -d 10msec ${vlan_pcp_opt}
+
+	# Wait until the switch packet counters are updated
+	sleep 6
+
+	local swp1_stats=$(ip -s -j link show dev ${swp1})
+	local swp2_stats=$(ip -s -j link show dev ${swp2})
+
+	local swp1_rx_packets_after=$(extract_network_stat "$swp1_stats" \
+				      '.[0].stats64.rx.packets')
+	local swp1_rx_bytes_after=$(extract_network_stat "$swp1_stats" \
+				    '.[0].stats64.rx.bytes')
+	local swp2_tx_packets_after=$(extract_network_stat "$swp2_stats" \
+				      '.[0].stats64.tx.packets')
+	local swp2_tx_bytes_after=$(extract_network_stat "$swp2_stats" \
+				    '.[0].stats64.tx.bytes')
+
+	local swp1_rx_packets_diff=$((${swp1_rx_packets_after} - \
+				      ${swp1_rx_packets_before}))
+	local swp2_tx_packets_diff=$((${swp2_tx_packets_after} - \
+				      ${swp2_tx_packets_before}))
+
+	local swp1_rx_hi_after=$(ethtool_stats_get ${swp1} "rx_hi")
+	local swp2_tx_hi_after=$(ethtool_stats_get ${swp2} "tx_hi")
+
+	# Test if any packets were received on swp1, we will rx before and after
+	if [ ${swp1_rx_packets_diff} -lt ${PING_COUNT} ]; then
+		echo "Not expected amount of received packets on ${swp1}"
+		echo "before ${swp1_rx_packets_before} after ${swp1_rx_packets_after}"
+		RET=1
+	fi
+
+	# Test if any packets were transmitted on swp2, we will tx before and after
+	if [ ${swp2_tx_packets_diff} -lt ${PING_COUNT} ]; then
+		echo "Not expected amount of transmitted packets on ${swp2}"
+		echo "before ${swp2_tx_packets_before} after ${swp2_tx_packets_after}"
+		RET=1
+	fi
+
+	# tx/rx_hi counted in bytes. So, we need to compare the difference in bytes
+	local swp1_rx_bytes_diff=$(($swp1_rx_bytes_after - $swp1_rx_bytes_before))
+	local swp2_tx_bytes_diff=$(($swp2_tx_bytes_after - $swp2_tx_bytes_before))
+	local swp1_rx_hi_diff=$(($swp1_rx_hi_after - $swp1_rx_hi_before))
+	local swp2_tx_hi_diff=$(($swp2_tx_hi_after - $swp2_tx_hi_before))
+
+	if [ ${expect_rx_high_prio} -eq 1 ]; then
+		swp1_rx_hi_diff=$((${swp1_rx_hi_diff} - \
+				   ${swp1_rx_packets_diff} * ${ETH_FCS_LEN}))
+		if [ ${swp1_rx_hi_diff} -ne ${swp1_rx_bytes_diff} ]; then
+			echo "Not expected amount of high priority packets received on ${swp1}"
+			echo "RX hi diff: ${swp1_rx_hi_diff}, expected RX bytes diff: ${swp1_rx_bytes_diff}"
+			RET=1
+		fi
+	else
+		if [ ${swp1_rx_hi_diff} -ne 0 ]; then
+			echo "Unexpected amount of high priority packets received on ${swp1}"
+			echo "RX hi diff: ${swp1_rx_hi_diff}, expected 0"
+			RET=1
+		fi
+	fi
+
+	if [ ${expect_tx_high_prio} -eq 1 ]; then
+		swp2_tx_hi_diff=$((${swp2_tx_hi_diff} - \
+				   ${swp2_tx_packets_diff} * ${ETH_FCS_LEN}))
+		if [ ${swp2_tx_hi_diff} -ne ${swp2_tx_bytes_diff} ]; then
+			echo "Not expected amount of high priority packets transmitted on ${swp2}"
+			echo "TX hi diff: ${swp2_tx_hi_diff}, expected TX bytes diff: ${swp2_tx_bytes_diff}"
+			RET=1
+		fi
+	else
+		if [ ${swp2_tx_hi_diff} -ne 0 ]; then
+			echo "Unexpected amount of high priority packets transmitted on ${swp2}"
+			echo "TX hi diff: ${swp2_tx_hi_diff}, expected 0"
+			RET=1
+		fi
+	fi
+
+	log_test "${test_name}"
+}
+
+run_test_dscp()
+{
+	# IPv4 test
+	run_test "$1" "$2" "$3" "$4" "$5" 0 0 0 0
+	# IPv6 test
+	run_test "$1" "$2" "$3" "$4" "$5" 0 0 0 1
+}
+
+run_test_dscp_pcp()
+{
+	# IPv4 test
+	run_test "$1" "$2" "$3" "$4" "$5" 1 "$6" "$7" 0
+	# IPv6 test
+	run_test "$1" "$2" "$3" "$4" "$5" 1 "$6" "$7" 1
+}
+
+port_default_prio_get()
+{
+	local if_name=$1
+	local prio
+
+	prio="$(dcb -j app show dev ${if_name} default-prio | \
+		jq '.default_prio[]')"
+	if [ -z "${prio}" ]; then
+		prio=0
+	fi
+
+	echo ${prio}
+}
+
+test_port_default()
+{
+	local orig_apptrust=$(port_get_default_apptrust ${swp1})
+	local orig_prio=$(port_default_prio_get ${swp1})
+	local apptrust_order=""
+
+	RET=0
+
+	# Make sure no other priority sources will interfere with the test
+	set_apptrust_order ${swp1} "${apptrust_order}"
+
+	for val in $(seq 0 7); do
+		dcb app replace dev ${swp1} default-prio ${val}
+		if [ $val -ne $(port_default_prio_get ${swp1}) ]; then
+			RET=1
+			break
+		fi
+
+		run_test_dscp "Port-default QoS classification, prio: ${val}" \
+			"${apptrust_order}" ${val} 0 0
+	done
+
+	set_apptrust_order ${swp1} "${orig_apptrust}"
+	if [[ "$orig_apptrust" != "$(port_get_default_apptrust ${swp1})" ]]; then
+		RET=1
+	fi
+
+	dcb app replace dev ${swp1} default-prio ${orig_prio}
+	if [ $orig_prio -ne $(port_default_prio_get ${swp1}) ]; then
+		RET=1
+	fi
+
+	log_test "Port-default QoS classification"
+}
+
+port_get_default_apptrust()
+{
+	local if_name=$1
+
+	dcb -j apptrust show dev ${if_name} | jq -r '.order[]' | \
+		tr '\n' ' ' | xargs
+}
+
+test_port_apptrust()
+{
+	local original_dscp_prios_swp1=$(get_dscp_prios ${swp1})
+	local orig_apptrust=$(port_get_default_apptrust ${swp1})
+	local orig_port_prio=$(port_default_prio_get ${swp1})
+	local order_variants=("pcp dscp" "dscp" "pcp")
+	local apptrust_order
+	local port_prio
+	local dscp_prio
+	local pcp_prio
+	local dscp
+	local pcp
+
+	RET=0
+
+	# First, test if apptrust configuration as taken by the kernel
+	for order in "${order_variants[@]}"; do
+		set_apptrust_order ${swp1} "${order}"
+		if [[ "$order" != "$(port_get_default_apptrust ${swp1})" ]]; then
+			RET=1
+			break
+		fi
+	done
+
+	log_test "Apptrust, supported variants"
+
+	# To test if the apptrust configuration is working as expected, we need
+	# to set DSCP priorities for the switch port.
+	init_dscp_prios "${swp1}" "${original_dscp_prios_swp1}"
+
+	# Start with a simple test where all apptrust sources are disabled
+	# default port priority is 0, DSCP priority is mapped to 7.
+	# No high priority packets should be received or transmitted.
+	port_prio=0
+	dscp_prio=7
+	dscp=4
+
+	dcb app replace dev ${swp1} default-prio ${port_prio}
+	dcb app replace dev ${swp1} dscp-prio ${dscp}:${dscp_prio}
+
+	apptrust_order=""
+	set_apptrust_order ${swp1} "${apptrust_order}"
+	# Test with apptrust sources disabled, Packets should get port default
+	# priority which is 0
+	run_test_dscp "Apptrust, all disabled. DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp}
+
+	apptrust_order="pcp"
+	set_apptrust_order ${swp1} "${apptrust_order}"
+	# If PCP is enabled, packets should get PCP priority, which is not
+	# set in this test (no VLAN tags are present in the packet). No high
+	# priority packets should be received or transmitted.
+	run_test_dscp "Apptrust, PCP enabled. DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp}
+
+	apptrust_order="dscp"
+	set_apptrust_order ${swp1} "${apptrust_order}"
+	# If DSCP is enabled, packets should get DSCP priority which is set to 7
+	# in this test. High priority packets should be received and transmitted.
+	run_test_dscp "Apptrust, DSCP enabled. DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp}
+
+	apptrust_order="pcp dscp"
+	set_apptrust_order ${swp1} "${apptrust_order}"
+	# If PCP and DSCP are enabled, PCP would have higher apptrust priority
+	# so packets should get PCP priority. But in this test VLAN PCP is not
+	# set, so it should get DSCP priority which is set to 7. High priority
+	# packets should be received and transmitted.
+	run_test_dscp "Apptrust, PCP and DSCP are enabled. DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp}
+
+	# If VLAN PCP is set, it should have higher apptrust priority than DSCP
+	# so packets should get VLAN PCP priority. Send packets with VLAN PCP
+	# set to 0, DSCP set to 7. Packets should get VLAN PCP priority.
+	# No high priority packets should be transmitted. Due to nature of the
+	# switch, high priority packets will be received.
+	pcp_prio=0
+	pcp=0
+	run_test_dscp_pcp "Apptrust, PCP and DSCP are enabled. PCP ${pcp_prio}, DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp} ${pcp_prio} ${pcp}
+
+	# If VLAN PCP is set to 7, it should have higher apptrust priority than
+	# DSCP so packets should get VLAN PCP priority. Send packets with VLAN
+	# PCP set to 7, DSCP set to 7. Packets should get VLAN PCP priority.
+	# High priority packets should be received and transmitted.
+	pcp_prio=7
+	pcp=7
+	run_test_dscp_pcp "Apptrust, PCP and DSCP are enabled. PCP ${pcp_prio}, DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp} ${pcp_prio} ${pcp}
+	# Now make sure that the switch is able to handle the case where DSCP
+	# priority is set to 0 and PCP priority is set to 7. Packets should get
+	# PCP priority. High priority packets should be received and transmitted.
+	dscp_prio=0
+	dcb app replace dev ${swp1} dscp-prio ${dscp}:${dscp_prio}
+	run_test_dscp_pcp "Apptrust, PCP and DSCP are enabled. PCP ${pcp_prio}, DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp} ${pcp_prio} ${pcp}
+	# If both VLAN PCP and DSCP are set to 0, packets should get 0 priority.
+	# No high priority packets should be received or transmitted.
+	pcp_prio=0
+	pcp=0
+	run_test_dscp_pcp "Apptrust, PCP and DSCP are enabled. PCP ${pcp_prio}, DSCP-prio ${dscp}:${dscp_prio}" \
+		"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp} ${pcp_prio} ${pcp}
+
+	# Restore original priorities
+	if ! restore_priorities "${swp1}" "${original_dscp_prios_swp1}"; then
+		RET=1
+	fi
+
+	set_apptrust_order ${swp1} "${orig_apptrust}"
+	if [ "$orig_apptrust" != "$(port_get_default_apptrust ${swp1})" ]; then
+		RET=1
+	fi
+
+	dcb app replace dev ${swp1} default-prio ${orig_port_prio}
+	if [ $orig_port_prio -ne $(port_default_prio_get ${swp1}) ]; then
+		RET=1
+	fi
+
+	log_test "Apptrust, restore original settings"
+}
+
+# Function to get current DSCP priorities
+get_dscp_prios() {
+	local if_name=$1
+	dcb -j app show dev ${if_name} | jq -c '.dscp_prio'
+}
+
+# Function to set a specific DSCP priority on a device
+replace_dscp_prio() {
+	local if_name=$1
+	local dscp=$2
+	local prio=$3
+	dcb app replace dev ${if_name} dscp-prio ${dscp}:${prio}
+}
+
+# Function to compare DSCP maps
+compare_dscp_maps() {
+	local old_json=$1
+	local new_json=$2
+	local dscp=$3
+	local prio=$4
+
+	# Create a modified old_json with the expected change for comparison
+	local modified_old_json=$(echo "$old_json" |
+		jq --argjson dscp $dscp --argjson prio $prio \
+			'map(if .[0] == $dscp then [$dscp, $prio] else . end)' |
+		tr -d " \n")
+
+	# Compare new_json with the modified_old_json
+	if [[ "$modified_old_json" == "$new_json" ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+# Function to set DSCP priorities
+set_and_verify_dscp() {
+	local port=$1
+	local dscp=$2
+	local new_prio=$3
+
+	local old_prios=$(get_dscp_prios $port)
+
+	replace_dscp_prio "$port" $dscp $new_prio
+
+	# Fetch current settings and compare
+	local current_prios=$(get_dscp_prios $port)
+	if ! compare_dscp_maps "$old_prios" "$current_prios" $dscp $new_prio; then
+		echo "Error: Unintended changes detected in DSCP map for $port after setting DSCP $dscp to $new_prio."
+		return 1
+	fi
+	return 0
+}
+
+# Function to restore original priorities
+restore_priorities() {
+	local port=$1
+	local original_prios=$2
+
+	echo "Removing test artifacts for $port"
+	local current_prios=$(get_dscp_prios $port)
+	local prio_str=$(echo "$current_prios" |
+		jq -r 'map("\(.[0]):\(.[1])") | join(" ")')
+	dcb app del dev $port dscp-prio $prio_str
+
+	echo "Restoring original DSCP priorities for $port"
+	local restore_str=$(echo "$original_prios" |
+		jq -r 'map("\(.[0]):\(.[1])") | join(" ")')
+	dcb app add dev $port dscp-prio $restore_str
+
+	local current_prios=$(get_dscp_prios $port)
+	if [[ "$original_prios" != "$current_prios" ]]; then
+		echo "Error: Failed to restore original DSCP priorities for $port"
+		return 1
+	fi
+	return 0
+}
+
+# Initialize DSCP priorities. Set them to predictable values for testing.
+init_dscp_prios() {
+	local port=$1
+	local original_prios=$2
+
+	echo "Removing any existing DSCP priority mappins for $port"
+	local prio_str=$(echo "$original_prios" |
+		jq -r 'map("\(.[0]):\(.[1])") | join(" ")')
+	dcb app del dev $port dscp-prio $prio_str
+
+	# Initialize DSCP priorities list
+	local dscp_prios=""
+	for dscp in {0..63}; do
+		dscp_prios+=("$dscp:0")
+	done
+
+	echo "Setting initial DSCP priorities map to 0 for $port"
+	dcb app add dev $port dscp-prio ${dscp_prios[@]}
+}
+
+# Main function to test global DSCP map across specified ports
+test_global_dscp_map() {
+	local ports=("$swp1" "$swp2")
+	local original_dscp_prios_port0=$(get_dscp_prios ${ports[0]})
+	local orig_apptrust=$(port_get_default_apptrust ${swp1})
+	local orig_port_prio=$(port_default_prio_get ${swp1})
+	local apptrust_order="dscp"
+	local port_prio=0
+	local dscp_prio
+	local dscp
+
+	RET=0
+
+	set_apptrust_order ${swp1} "${apptrust_order}"
+	dcb app replace dev ${swp1} default-prio ${port_prio}
+
+	# Initialize DSCP priorities
+	init_dscp_prios "${ports[0]}" "$original_dscp_prios_port0"
+
+	# Loop over each DSCP index
+	for dscp in {0..63}; do
+		# and test each Internal Priority value
+		for dscp_prio in {0..7}; do
+			# do it for each port. This is to test if the global DSCP map
+			# is accessible from all ports.
+			for port in "${ports[@]}"; do
+				if ! set_and_verify_dscp "$port" $dscp $dscp_prio; then
+					RET=1
+				fi
+			done
+
+			# Test if the DSCP priority is correctly applied to the packets
+			run_test_dscp "DSCP (${dscp}) QoS classification, prio: ${dscp_prio}" \
+				"${apptrust_order}" ${port_prio} ${dscp_prio} ${dscp}
+			if [ ${RET} -eq 1 ]; then
+				break
+			fi
+		done
+	done
+
+	# Restore original priorities
+	if ! restore_priorities "${ports[0]}" "${original_dscp_prios_port0}"; then
+		RET=1
+	fi
+
+	set_apptrust_order ${swp1} "${orig_apptrust}"
+	if [[ "$orig_apptrust" != "$(port_get_default_apptrust ${swp1})" ]]; then
+		RET=1
+	fi
+
+	dcb app replace dev ${swp1} default-prio ${orig_port_prio}
+	if [ $orig_port_prio -ne $(port_default_prio_get ${swp1}) ]; then
+		RET=1
+	fi
+
+	log_test "DSCP global map"
+}
+
+trap cleanup EXIT
+
+ALL_TESTS="
+	test_port_default
+	test_port_apptrust
+	test_global_dscp_map
+"
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/blackhole_routes.sh b/tools/testing/selftests/drivers/net/mlxsw/blackhole_routes.sh
new file mode 100755
index 000000000000..bdffe698e1d1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/blackhole_routes.sh
@@ -0,0 +1,201 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that blackhole routes are marked as offloaded and that packets hitting
+# them are dropped by the ASIC and not by the kernel.
+#
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    | 2001:db8:1::1/64           |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# |    |  default via 2001:db8:1::2 |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |        2001:db8:1::2/64                                                   |
+# |                                                                           |
+# |        2001:db8:2::2/64                                                   |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |  default via 2001:db8:2::2 |
+# |    |                            |
+# |    | 2001:db8:2::1/64           |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	blackhole_ipv4
+	blackhole_ipv6
+"
+NUM_NETIFS=4
+: ${TIMEOUT:=20000} # ms
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp1 clsact
+
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	__addr_add_del $rp2 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+	__addr_add_del $rp2 del 198.51.100.2/24 2001:db8:2::2/64
+	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
+
+	tc qdisc del dev $rp1 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.1 ": h1->h2"
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::1 ": h1->h2"
+}
+
+blackhole_ipv4()
+{
+	# Transmit packets from H1 to H2 and make sure they are dropped by the
+	# ASIC and not by the kernel
+	RET=0
+
+	ip -4 route add blackhole 198.51.100.0/30
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_hw dst_ip 198.51.100.1 src_ip 192.0.2.1 ip_proto icmp \
+		action pass
+
+	busywait "$TIMEOUT" wait_for_offload ip -4 route show 198.51.100.0/30
+	check_err $? "route not marked as offloaded when should"
+
+	ping_do $h1 198.51.100.1
+	check_fail $? "ping passed when should not"
+
+	tc_check_packets "dev $rp1 ingress" 101 0
+	check_err $? "packets trapped and not dropped by ASIC"
+
+	log_test "IPv4 blackhole route"
+
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+	ip -4 route del blackhole 198.51.100.0/30
+}
+
+blackhole_ipv6()
+{
+	RET=0
+
+	ip -6 route add blackhole 2001:db8:2::/120
+	tc filter add dev $rp1 ingress protocol ipv6 pref 1 handle 101 flower \
+		skip_hw dst_ip 2001:db8:2::1 src_ip 2001:db8:1::1 \
+		ip_proto icmpv6 action pass
+
+	busywait "$TIMEOUT" wait_for_offload ip -6 route show 2001:db8:2::/120
+	check_err $? "route not marked as offloaded when should"
+
+	ping6_do $h1 2001:db8:2::1
+	check_fail $? "ping passed when should not"
+
+	tc_check_packets "dev $rp1 ingress" 101 0
+	check_err $? "packets trapped and not dropped by ASIC"
+
+	log_test "IPv6 blackhole route"
+
+	tc filter del dev $rp1 ingress protocol ipv6 pref 1 handle 101 flower
+	ip -6 route del blackhole 2001:db8:2::/120
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh
new file mode 100755
index 000000000000..224ca3695c89
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh
@@ -0,0 +1,334 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# In addition to the common variables, user might use:
+# LC_SLOT - If not set, all probed line cards are going to be tested,
+#	    with an exception of the "activation_16x100G_test".
+#	    It set, only the selected line card is going to be used
+#	    for tests, including "activation_16x100G_test".
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	unprovision_test
+	provision_test
+	activation_16x100G_test
+"
+
+NUM_NETIFS=0
+
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+until_lc_state_is()
+{
+	local state=$1; shift
+	local current=$("$@")
+
+	echo "$current"
+	[ "$current" == "$state" ]
+}
+
+until_lc_state_is_not()
+{
+	! until_lc_state_is "$@"
+}
+
+lc_state_get()
+{
+	local lc=$1
+
+	devlink lc show $DEVLINK_DEV lc $lc -j | jq -e -r ".[][][].state"
+}
+
+lc_wait_until_state_changes()
+{
+	local lc=$1
+	local state=$2
+	local timeout=$3 # ms
+
+	busywait "$timeout" until_lc_state_is_not "$state" lc_state_get "$lc"
+}
+
+lc_wait_until_state_becomes()
+{
+	local lc=$1
+	local state=$2
+	local timeout=$3 # ms
+
+	busywait "$timeout" until_lc_state_is "$state" lc_state_get "$lc"
+}
+
+until_lc_port_count_is()
+{
+	local port_count=$1; shift
+	local current=$("$@")
+
+	echo "$current"
+	[ $current == $port_count ]
+}
+
+lc_port_count_get()
+{
+	local lc=$1
+
+	devlink port -j | jq -e -r ".[][] | select(.lc==$lc) | .port" | wc -l
+}
+
+lc_wait_until_port_count_is()
+{
+	local lc=$1
+	local port_count=$2
+	local timeout=$3 # ms
+
+	busywait "$timeout" until_lc_port_count_is "$port_count" lc_port_count_get "$lc"
+}
+
+lc_nested_devlink_dev_get()
+{
+	local lc=$1
+
+	devlink lc show $DEVLINK_DEV lc $lc -j | jq -e -r ".[][][].nested_devlink"
+}
+
+PROV_UNPROV_TIMEOUT=8000 # ms
+POST_PROV_ACT_TIMEOUT=2000 # ms
+PROV_PORTS_INSTANTIATION_TIMEOUT=15000 # ms
+
+unprovision_one()
+{
+	local lc=$1
+	local state
+
+	state=$(lc_state_get $lc)
+	check_err $? "Failed to get state of linecard $lc"
+	if [[ "$state" == "unprovisioned" ]]; then
+		return
+	fi
+
+	log_info "Unprovisioning linecard $lc"
+
+	devlink lc set $DEVLINK_DEV lc $lc notype
+	check_err $? "Failed to trigger linecard $lc unprovisioning"
+
+	state=$(lc_wait_until_state_changes $lc "unprovisioning" \
+		$PROV_UNPROV_TIMEOUT)
+	check_err $? "Failed to unprovision linecard $lc (timeout)"
+
+	[ "$state" == "unprovisioned" ]
+	check_err $? "Failed to unprovision linecard $lc (state=$state)"
+}
+
+provision_one()
+{
+	local lc=$1
+	local type=$2
+	local state
+
+	log_info "Provisioning linecard $lc"
+
+	devlink lc set $DEVLINK_DEV lc $lc type $type
+	check_err $? "Failed trigger linecard $lc provisioning"
+
+	state=$(lc_wait_until_state_changes $lc "provisioning" \
+		$PROV_UNPROV_TIMEOUT)
+	check_err $? "Failed to provision linecard $lc (timeout)"
+
+	[ "$state" == "provisioned" ] || [ "$state" == "active" ]
+	check_err $? "Failed to provision linecard $lc (state=$state)"
+
+	provisioned_type=$(devlink lc show $DEVLINK_DEV lc $lc -j | jq -e -r ".[][][].type")
+	[ "$provisioned_type" == "$type" ]
+	check_err $? "Wrong provision type returned for linecard $lc (got \"$provisioned_type\", expected \"$type\")"
+
+	# Wait for possible activation to make sure the state
+	# won't change after return from this function.
+	state=$(lc_wait_until_state_becomes $lc "active" \
+		$POST_PROV_ACT_TIMEOUT)
+}
+
+unprovision_test()
+{
+	RET=0
+	local lc
+
+	lc=$LC_SLOT
+	unprovision_one $lc
+	log_test "Unprovision"
+}
+
+LC_16X100G_TYPE="16x100G"
+LC_16X100G_PORT_COUNT=16
+
+supported_types_check()
+{
+	local lc=$1
+	local supported_types_count
+	local type_index
+	local lc_16x100_found=false
+
+	supported_types_count=$(devlink lc show $DEVLINK_DEV lc $lc -j | \
+				jq -e -r ".[][][].supported_types | length")
+	[ $supported_types_count != 0 ]
+	check_err $? "No supported types found for linecard $lc"
+	for (( type_index=0; type_index<$supported_types_count; type_index++ ))
+	do
+		type=$(devlink lc show $DEVLINK_DEV lc $lc -j | \
+		       jq -e -r ".[][][].supported_types[$type_index]")
+		if [[ "$type" == "$LC_16X100G_TYPE" ]]; then
+			lc_16x100_found=true
+			break
+		fi
+	done
+	[ $lc_16x100_found = true ]
+	check_err $? "16X100G not found between supported types of linecard $lc"
+}
+
+ports_check()
+{
+	local lc=$1
+	local expected_port_count=$2
+	local port_count
+
+	port_count=$(lc_wait_until_port_count_is $lc $expected_port_count \
+		$PROV_PORTS_INSTANTIATION_TIMEOUT)
+	[ $port_count != 0 ]
+	check_err $? "No port associated with linecard $lc"
+	[ $port_count == $expected_port_count ]
+	check_err $? "Unexpected port count linecard $lc (got $port_count, expected $expected_port_count)"
+}
+
+lc_dev_info_provisioned_check()
+{
+	local lc=$1
+	local nested_devlink_dev=$2
+	local fixed_hw_revision
+	local running_ini_version
+
+	fixed_hw_revision=$(devlink dev info $nested_devlink_dev -j | \
+			    jq -e -r '.[][].versions.fixed."hw.revision"')
+	check_err $? "Failed to get linecard $lc fixed.hw.revision"
+	log_info "Linecard $lc fixed.hw.revision: \"$fixed_hw_revision\""
+	running_ini_version=$(devlink dev info $nested_devlink_dev -j | \
+			      jq -e -r '.[][].versions.running."ini.version"')
+	check_err $? "Failed to get linecard $lc running.ini.version"
+	log_info "Linecard $lc running.ini.version: \"$running_ini_version\""
+}
+
+provision_test()
+{
+	RET=0
+	local lc
+	local type
+	local state
+	local nested_devlink_dev
+
+	lc=$LC_SLOT
+	supported_types_check $lc
+	state=$(lc_state_get $lc)
+	check_err $? "Failed to get state of linecard $lc"
+	if [[ "$state" != "unprovisioned" ]]; then
+		unprovision_one $lc
+	fi
+	provision_one $lc $LC_16X100G_TYPE
+	ports_check $lc $LC_16X100G_PORT_COUNT
+
+	nested_devlink_dev=$(lc_nested_devlink_dev_get $lc)
+	check_err $? "Failed to get nested devlink handle of linecard $lc"
+	lc_dev_info_provisioned_check $lc $nested_devlink_dev
+
+	log_test "Provision"
+}
+
+ACTIVATION_TIMEOUT=20000 # ms
+
+interface_check()
+{
+	ip link set $h1 up
+	ip link set $h2 up
+	ifaces_upped=true
+	setup_wait
+}
+
+lc_dev_info_active_check()
+{
+	local lc=$1
+	local nested_devlink_dev=$2
+	local fixed_device_fw_psid
+	local running_device_fw
+
+	fixed_device_fw_psid=$(devlink dev info $nested_devlink_dev -j | \
+			       jq -e -r ".[][].versions.fixed" | \
+			       jq -e -r '."fw.psid"')
+	check_err $? "Failed to get linecard $lc fixed fw PSID"
+	log_info "Linecard $lc fixed.fw.psid: \"$fixed_device_fw_psid\""
+
+	running_device_fw=$(devlink dev info $nested_devlink_dev -j | \
+			    jq -e -r ".[][].versions.running.fw")
+	check_err $? "Failed to get linecard $lc running.fw.version"
+	log_info "Linecard $lc running.fw: \"$running_device_fw\""
+}
+
+activation_16x100G_test()
+{
+	RET=0
+	local lc
+	local type
+	local state
+	local nested_devlink_dev
+
+	lc=$LC_SLOT
+	type=$LC_16X100G_TYPE
+
+	unprovision_one $lc
+	provision_one $lc $type
+	state=$(lc_wait_until_state_becomes $lc "active" \
+		$ACTIVATION_TIMEOUT)
+	check_err $? "Failed to get linecard $lc activated (timeout)"
+
+	interface_check
+
+	nested_devlink_dev=$(lc_nested_devlink_dev_get $lc)
+	check_err $? "Failed to get nested devlink handle of linecard $lc"
+	lc_dev_info_active_check $lc $nested_devlink_dev
+
+	log_test "Activation 16x100G"
+}
+
+setup_prepare()
+{
+	local lc_num=$(devlink lc show -j | jq -e -r ".[][\"$DEVLINK_DEV\"] |length")
+	if [[ $? -ne 0 ]] || [[ $lc_num -eq 0 ]]; then
+		echo "SKIP: No linecard support found"
+		exit $ksft_skip
+	fi
+
+	if [ -z "$LC_SLOT" ]; then
+		echo "SKIP: \"LC_SLOT\" variable not provided"
+		exit $ksft_skip
+	fi
+
+	# Interfaces are not present during the script start,
+	# that's why we define NUM_NETIFS here so dummy
+	# implicit veth pairs are not created.
+	NUM_NETIFS=2
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+	ifaces_upped=false
+}
+
+cleanup()
+{
+	if [ "$ifaces_upped" = true ] ; then
+		ip link set $h1 down
+		ip link set $h2 down
+	fi
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh
new file mode 100755
index 000000000000..36055279ba92
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap.sh
@@ -0,0 +1,129 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test generic devlink-trap functionality over mlxsw. These tests are not
+# specific to a single trap, but do not check the devlink-trap common
+# infrastructure either.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	dev_del_test
+"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+dev_del_test()
+{
+	local trap_name="source_mac_is_multicast"
+	local smac=01:02:03:04:05:06
+	local num_iter=5
+	local mz_pid
+	local i
+
+	$MZ $h1 -c 0 -p 100 -a $smac -b bcast -t ip -q &
+	mz_pid=$!
+
+	# The purpose of this test is to make sure we correctly dismantle a
+	# port while packets are trapped from it. This is done by reloading the
+	# the driver while the 'ingress_smac_mc_drop' trap is triggered.
+	RET=0
+
+	for i in $(seq 1 $num_iter); do
+		log_info "Iteration $i / $num_iter"
+
+		devlink_trap_action_set $trap_name "trap"
+		sleep 1
+
+		devlink_reload
+		# Allow netdevices to be re-created following the reload
+		sleep 20
+
+		cleanup
+		setup_prepare
+		setup_wait
+	done
+
+	log_test "Device delete"
+
+	kill_process $mz_pid
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_acl_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_acl_drops.sh
new file mode 100755
index 000000000000..b32ba5fec59d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_acl_drops.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap ACL drops functionality over mlxsw.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ingress_flow_action_drop_test
+	egress_flow_action_drop_test
+"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ingress_flow_action_drop_test()
+{
+	local mz_pid
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower src_mac $h1mac action pass
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 \
+		flower dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 0 -p 100 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -d 1msec -q &
+	mz_pid=$!
+
+	RET=0
+
+	devlink_trap_drop_test ingress_flow_action_drop $swp2 101
+
+	log_test "ingress_flow_action_drop"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+}
+
+egress_flow_action_drop_test()
+{
+	local mz_pid
+
+	tc filter add dev $swp2 egress protocol ip pref 2 handle 102 \
+		flower src_mac $h1mac action pass
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 0 -p 100 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -d 1msec -q &
+	mz_pid=$!
+
+	RET=0
+
+	devlink_trap_drop_test egress_flow_action_drop $swp2 102
+
+	log_test "egress_flow_action_drop"
+
+	tc filter del dev $swp2 egress protocol ip pref 1 handle 101 flower
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 2 102
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
new file mode 100755
index 000000000000..64153bbf95df
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_control.sh
@@ -0,0 +1,709 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap control trap functionality over mlxsw. Each registered
+# control packet trap is tested to make sure it is triggered under the right
+# conditions.
+#
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    | 2001:db8:1::1/64           |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# |    |  default via 2001:db8:1::2 |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |        2001:db8:1::2/64                                                   |
+# |                                                                           |
+# |        2001:db8:2::2/64                                                   |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |  default via 2001:db8:2::2 |
+# |    |                            |
+# |    | 2001:db8:2::1/64           |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	stp_test
+	lacp_test
+	lldp_test
+	igmp_query_test
+	igmp_v1_report_test
+	igmp_v2_report_test
+	igmp_v3_report_test
+	igmp_v2_leave_test
+	mld_query_test
+	mld_v1_report_test
+	mld_v2_report_test
+	mld_v1_done_test
+	ipv4_dhcp_test
+	ipv6_dhcp_test
+	arp_request_test
+	arp_response_test
+	ipv6_neigh_solicit_test
+	ipv6_neigh_advert_test
+	ipv4_bfd_test
+	ipv6_bfd_test
+	ipv4_ospf_test
+	ipv6_ospf_test
+	ipv4_bgp_test
+	ipv6_bgp_test
+	ipv4_vrrp_test
+	ipv6_vrrp_test
+	ipv4_pim_test
+	ipv6_pim_test
+	uc_loopback_test
+	local_route_test
+	external_route_test
+	ipv6_uc_dip_link_local_scope_test
+	ipv4_router_alert_test
+	ipv6_router_alert_test
+	ipv6_dip_all_nodes_test
+	ipv6_dip_all_routers_test
+	ipv6_router_solicit_test
+	ipv6_router_advert_test
+	ipv6_redirect_test
+	ptp_event_test
+	ptp_general_test
+	flow_action_sample_test
+	flow_action_trap_test
+	eapol_test
+"
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	__addr_add_del $rp2 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+	__addr_add_del $rp2 del 198.51.100.2/24 2001:db8:2::2/64
+	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+stp_test()
+{
+	devlink_trap_stats_test "STP" "stp" $MZ $h1 -c 1 -t bpdu -q
+}
+
+lacp_payload_get()
+{
+	local source_mac=$1; shift
+	local p
+
+	p=$(:
+		)"01:80:C2:00:00:02:"$(       : ETH daddr
+		)"$source_mac:"$(             : ETH saddr
+		)"88:09:"$(                   : ETH type
+		)
+	echo $p
+}
+
+lacp_test()
+{
+	local h1mac=$(mac_get $h1)
+
+	devlink_trap_stats_test "LACP" "lacp" $MZ $h1 -c 1 \
+		$(lacp_payload_get $h1mac) -p 100 -q
+}
+
+lldp_payload_get()
+{
+	local source_mac=$1; shift
+	local p
+
+	p=$(:
+		)"01:80:C2:00:00:0E:"$(       : ETH daddr
+		)"$source_mac:"$(             : ETH saddr
+		)"88:CC:"$(                   : ETH type
+		)
+	echo $p
+}
+
+lldp_test()
+{
+	local h1mac=$(mac_get $h1)
+
+	devlink_trap_stats_test "LLDP" "lldp" $MZ $h1 -c 1 \
+		$(lldp_payload_get $h1mac) -p 100 -q
+}
+
+igmp_query_test()
+{
+	# IGMP (IP Protocol 2) Membership Query (Type 0x11)
+	devlink_trap_stats_test "IGMP Membership Query" "igmp_query" \
+		$MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+		-A 192.0.2.1 -B 224.0.0.1 -t ip proto=2,p=11 -p 100 -q
+}
+
+igmp_v1_report_test()
+{
+	# IGMP (IP Protocol 2) Version 1 Membership Report (Type 0x12)
+	devlink_trap_stats_test "IGMP Version 1 Membership Report" \
+		"igmp_v1_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+		-A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=12 -p 100 -q
+}
+
+igmp_v2_report_test()
+{
+	# IGMP (IP Protocol 2) Version 2 Membership Report (Type 0x16)
+	devlink_trap_stats_test "IGMP Version 2 Membership Report" \
+		"igmp_v2_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+		-A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=16 -p 100 -q
+}
+
+igmp_v3_report_test()
+{
+	# IGMP (IP Protocol 2) Version 3 Membership Report (Type 0x22)
+	devlink_trap_stats_test "IGMP Version 3 Membership Report" \
+		"igmp_v3_report" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:01 \
+		-A 192.0.2.1 -B 244.0.0.1 -t ip proto=2,p=22 -p 100 -q
+}
+
+igmp_v2_leave_test()
+{
+	# IGMP (IP Protocol 2) Version 2 Leave Group (Type 0x17)
+	devlink_trap_stats_test "IGMP Version 2 Leave Group" \
+		"igmp_v2_leave" $MZ $h1 -c 1 -a own -b 01:00:5E:00:00:02 \
+		-A 192.0.2.1 -B 224.0.0.2 -t ip proto=2,p=17 -p 100 -q
+}
+
+mld_payload_get()
+{
+	local type=$1; shift
+	local p
+
+	type=$(printf "%x" $type)
+	p=$(:
+		)"3A:"$(			: Next Header - ICMPv6
+		)"00:"$(			: Hdr Ext Len
+		)"00:00:00:00:00:00:"$(		: Options and Padding
+		)"$type:"$(			: ICMPv6.type
+		)"00:"$(			: ICMPv6.code
+		)"00:"$(			: ICMPv6.checksum
+		)
+	echo $p
+}
+
+mld_query_test()
+{
+	# MLD Multicast Listener Query (Type 130)
+	devlink_trap_stats_test "MLD Multicast Listener Query" "mld_query" \
+		$MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1 \
+		-t ip hop=1,next=0,payload=$(mld_payload_get 130) -p 100 -q
+}
+
+mld_v1_report_test()
+{
+	# MLD Version 1 Multicast Listener Report (Type 131)
+	devlink_trap_stats_test "MLD Version 1 Multicast Listener Report" \
+		"mld_v1_report" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+		-t ip hop=1,next=0,payload=$(mld_payload_get 131) -p 100 -q
+}
+
+mld_v2_report_test()
+{
+	# MLD Version 2 Multicast Listener Report (Type 143)
+	devlink_trap_stats_test "MLD Version 2 Multicast Listener Report" \
+		"mld_v2_report" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+		-t ip hop=1,next=0,payload=$(mld_payload_get 143) -p 100 -q
+}
+
+mld_v1_done_test()
+{
+	# MLD Version 1 Multicast Listener Done (Type 132)
+	devlink_trap_stats_test "MLD Version 1 Multicast Listener Done" \
+		"mld_v1_done" $MZ $h1 -6 -c 1 -A fe80::1 -B ff02::16 \
+		-t ip hop=1,next=0,payload=$(mld_payload_get 132) -p 100 -q
+}
+
+ipv4_dhcp_test()
+{
+	devlink_trap_stats_test "IPv4 DHCP Port 67" "ipv4_dhcp" \
+		$MZ $h1 -c 1 -a own -b bcast -A 0.0.0.0 -B 255.255.255.255 \
+		-t udp sp=68,dp=67 -p 100 -q
+
+	devlink_trap_stats_test "IPv4 DHCP Port 68" "ipv4_dhcp" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) -A 192.0.2.1 \
+		-B 255.255.255.255 -t udp sp=67,dp=68 -p 100 -q
+}
+
+ipv6_dhcp_test()
+{
+	devlink_trap_stats_test "IPv6 DHCP Port 547" "ipv6_dhcp" \
+		$MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1:2 -t udp sp=546,dp=547 \
+		-p 100 -q
+
+	devlink_trap_stats_test "IPv6 DHCP Port 546" "ipv6_dhcp" \
+		$MZ $h1 -6 -c 1 -A fe80::1 -B ff02::1:2 -t udp sp=547,dp=546 \
+		-p 100 -q
+}
+
+arp_request_test()
+{
+	devlink_trap_stats_test "ARP Request" "arp_request" \
+		$MZ $h1 -c 1 -a own -b bcast -t arp request -p 100 -q
+}
+
+arp_response_test()
+{
+	devlink_trap_stats_test "ARP Response" "arp_response" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) -t arp reply -p 100 -q
+}
+
+icmpv6_header_get()
+{
+	local type=$1; shift
+	local p
+
+	type=$(printf "%x" $type)
+	p=$(:
+		)"$type:"$(			: ICMPv6.type
+		)"00:"$(			: ICMPv6.code
+		)"00:"$(			: ICMPv6.checksum
+		)
+	echo $p
+}
+
+ipv6_neigh_solicit_test()
+{
+	devlink_trap_stats_test "IPv6 Neighbour Solicitation" \
+		"ipv6_neigh_solicit" $MZ $h1 -6 -c 1 \
+		-A fe80::1 -B ff02::1:ff00:02 \
+		-t ip hop=1,next=58,payload=$(icmpv6_header_get 135) -p 100 -q
+}
+
+ipv6_neigh_advert_test()
+{
+	devlink_trap_stats_test "IPv6 Neighbour Advertisement" \
+		"ipv6_neigh_advert" $MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A fe80::1 -B 2001:db8:1::2 \
+		-t ip hop=1,next=58,payload=$(icmpv6_header_get 136) -p 100 -q
+}
+
+ipv4_bfd_test()
+{
+	devlink_trap_stats_test "IPv4 BFD Control - Port 3784" "ipv4_bfd" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.2 -t udp sp=49153,dp=3784 -p 100 -q
+
+	devlink_trap_stats_test "IPv4 BFD Echo - Port 3785" "ipv4_bfd" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.2 -t udp sp=49153,dp=3785 -p 100 -q
+}
+
+ipv6_bfd_test()
+{
+	devlink_trap_stats_test "IPv6 BFD Control - Port 3784" "ipv6_bfd" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::2 \
+		-t udp sp=49153,dp=3784 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 BFD Echo - Port 3785" "ipv6_bfd" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::2 \
+		-t udp sp=49153,dp=3785 -p 100 -q
+}
+
+ipv4_ospf_test()
+{
+	devlink_trap_stats_test "IPv4 OSPF - Multicast" "ipv4_ospf" \
+		$MZ $h1 -c 1 -a own -b 01:00:5e:00:00:05 \
+		-A 192.0.2.1 -B 224.0.0.5 -t ip proto=89 -p 100 -q
+
+	devlink_trap_stats_test "IPv4 OSPF - Unicast" "ipv4_ospf" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.2 -t ip proto=89 -p 100 -q
+}
+
+ipv6_ospf_test()
+{
+	devlink_trap_stats_test "IPv6 OSPF - Multicast" "ipv6_ospf" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:05 \
+		-A fe80::1 -B ff02::5 -t ip next=89 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 OSPF - Unicast" "ipv6_ospf" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::2 -t ip next=89 -p 100 -q
+}
+
+ipv4_bgp_test()
+{
+	devlink_trap_stats_test "IPv4 BGP" "ipv4_bgp" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.2 -t tcp sp=54321,dp=179,flags=rst \
+		-p 100 -q
+}
+
+ipv6_bgp_test()
+{
+	devlink_trap_stats_test "IPv6 BGP" "ipv6_bgp" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::2 \
+		-t tcp sp=54321,dp=179,flags=rst -p 100 -q
+}
+
+ipv4_vrrp_test()
+{
+	devlink_trap_stats_test "IPv4 VRRP" "ipv4_vrrp" \
+		$MZ $h1 -c 1 -a own -b 01:00:5e:00:00:12 \
+		-A 192.0.2.1 -B 224.0.0.18 -t ip proto=112 -p 100 -q
+}
+
+ipv6_vrrp_test()
+{
+	devlink_trap_stats_test "IPv6 VRRP" "ipv6_vrrp" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:12 \
+		-A fe80::1 -B ff02::12 -t ip next=112 -p 100 -q
+}
+
+ipv4_pim_test()
+{
+	devlink_trap_stats_test "IPv4 PIM - Multicast" "ipv4_pim" \
+		$MZ $h1 -c 1 -a own -b 01:00:5e:00:00:0d \
+		-A 192.0.2.1 -B 224.0.0.13 -t ip proto=103 -p 100 -q
+
+	devlink_trap_stats_test "IPv4 PIM - Unicast" "ipv4_pim" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.2 -t ip proto=103 -p 100 -q
+}
+
+ipv6_pim_test()
+{
+	devlink_trap_stats_test "IPv6 PIM - Multicast" "ipv6_pim" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:0d \
+		-A fe80::1 -B ff02::d -t ip next=103 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 PIM - Unicast" "ipv6_pim" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A fe80::1 -B 2001:db8:1::2 -t ip next=103 -p 100 -q
+}
+
+uc_loopback_test()
+{
+	# Add neighbours to the fake destination IPs, so that the packets are
+	# routed in the device and not trapped due to an unresolved neighbour
+	# exception.
+	ip -4 neigh add 192.0.2.3 lladdr 00:11:22:33:44:55 nud permanent \
+		dev $rp1
+	ip -6 neigh add 2001:db8:1::3 lladdr 00:11:22:33:44:55 nud permanent \
+		dev $rp1
+
+	devlink_trap_stats_test "IPv4 Unicast Loopback" "uc_loopback" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 192.0.2.3 -t udp sp=54321,dp=12345 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 Unicast Loopback" "uc_loopback" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::3 -t udp sp=54321,dp=12345 \
+		-p 100 -q
+
+	ip -6 neigh del 2001:db8:1::3 dev $rp1
+	ip -4 neigh del 192.0.2.3 dev $rp1
+}
+
+local_route_test()
+{
+	# Use a fake source IP to prevent the trap from being triggered twice
+	# when the router sends back a port unreachable message.
+	devlink_trap_stats_test "IPv4 Local Route" "local_route" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.3 -B 192.0.2.2 -t udp sp=54321,dp=12345 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 Local Route" "local_route" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::3 -B 2001:db8:1::2 -t udp sp=54321,sp=12345 \
+		-p 100 -q
+}
+
+external_route_test()
+{
+	# Add a dummy device through which the incoming packets should be
+	# routed.
+	ip link add name dummy10 up type dummy
+	ip address add 203.0.113.1/24 dev dummy10
+	ip -6 address add 2001:db8:10::1/64 dev dummy10
+
+	devlink_trap_stats_test "IPv4 External Route" "external_route" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 203.0.113.2 -t udp sp=54321,dp=12345 -p 100 -q
+
+	devlink_trap_stats_test "IPv6 External Route" "external_route" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:10::2 -t udp sp=54321,sp=12345 \
+		-p 100 -q
+
+	ip -6 address del 2001:db8:10::1/64 dev dummy10
+	ip address del 203.0.113.1/24 dev dummy10
+	ip link del dev dummy10
+}
+
+ipv6_uc_dip_link_local_scope_test()
+{
+	# Add a dummy link-local prefix route to allow the packet to be routed.
+	ip -6 route add fe80:1::/64 dev $rp2
+
+	devlink_trap_stats_test \
+		"IPv6 Unicast Destination IP With Link-Local Scope" \
+		"ipv6_uc_dip_link_local_scope" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A fe80::1 -B fe80:1::2 -t udp sp=54321,sp=12345 \
+		-p 100 -q
+
+	ip -6 route del fe80:1::/64 dev $rp2
+}
+
+ipv4_router_alert_get()
+{
+	local p
+
+	# https://en.wikipedia.org/wiki/IPv4#Options
+	p=$(:
+		)"94:"$(			: Option Number
+		)"04:"$(			: Option Length
+		)"00:00:"$(			: Option Data
+		)
+	echo $p
+}
+
+ipv4_router_alert_test()
+{
+	devlink_trap_stats_test "IPv4 Router Alert" "ipv4_router_alert" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 198.51.100.3 \
+		-t ip option=$(ipv4_router_alert_get) -p 100 -q
+}
+
+ipv6_router_alert_get()
+{
+	local p
+
+	# https://en.wikipedia.org/wiki/IPv6_packet#Hop-by-hop_options_and_destination_options
+	# https://tools.ietf.org/html/rfc2711#section-2.1
+	p=$(:
+		)"11:"$(			: Next Header - UDP
+		)"00:"$(			: Hdr Ext Len
+		)"05:02:00:00:00:00:"$(		: Option Data
+		)
+	echo $p
+}
+
+ipv6_router_alert_test()
+{
+	devlink_trap_stats_test "IPv6 Router Alert" "ipv6_router_alert" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A 2001:db8:1::1 -B 2001:db8:1::3 \
+		-t ip next=0,payload=$(ipv6_router_alert_get) -p 100 -q
+}
+
+ipv6_dip_all_nodes_test()
+{
+	devlink_trap_stats_test "IPv6 Destination IP \"All Nodes Address\"" \
+		"ipv6_dip_all_nodes" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:01 \
+		-A 2001:db8:1::1 -B ff02::1 -t udp sp=12345,dp=54321 -p 100 -q
+}
+
+ipv6_dip_all_routers_test()
+{
+	devlink_trap_stats_test "IPv6 Destination IP \"All Routers Address\"" \
+		"ipv6_dip_all_routers" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:02 \
+		-A 2001:db8:1::1 -B ff02::2 -t udp sp=12345,dp=54321 -p 100 -q
+}
+
+ipv6_router_solicit_test()
+{
+	devlink_trap_stats_test "IPv6 Router Solicitation" \
+		"ipv6_router_solicit" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:02 \
+		-A fe80::1 -B ff02::2 \
+		-t ip hop=1,next=58,payload=$(icmpv6_header_get 133) -p 100 -q
+}
+
+ipv6_router_advert_test()
+{
+	devlink_trap_stats_test "IPv6 Router Advertisement" \
+		"ipv6_router_advert" \
+		$MZ $h1 -6 -c 1 -a own -b 33:33:00:00:00:01 \
+		-A fe80::1 -B ff02::1 \
+		-t ip hop=1,next=58,payload=$(icmpv6_header_get 134) -p 100 -q
+}
+
+ipv6_redirect_test()
+{
+	devlink_trap_stats_test "IPv6 Redirect Message" \
+		"ipv6_redirect" \
+		$MZ $h1 -6 -c 1 -a own -b $(mac_get $rp1) \
+		-A fe80::1 -B 2001:db8:1::2 \
+		-t ip hop=1,next=58,payload=$(icmpv6_header_get 137) -p 100 -q
+}
+
+ptp_event_test()
+{
+	mlxsw_only_on_spectrum 1 || return
+
+	# PTP Sync (0)
+	devlink_trap_stats_test "PTP Time-Critical Event Message" "ptp_event" \
+		$MZ $h1 -c 1 -a own -b 01:00:5e:00:01:81 \
+		-A 192.0.2.1 -B 224.0.1.129 \
+		-t udp sp=12345,dp=319,payload=10 -p 100 -q
+}
+
+ptp_general_test()
+{
+	mlxsw_only_on_spectrum 1 || return
+
+	# PTP Announce (b)
+	devlink_trap_stats_test "PTP General Message" "ptp_general" \
+		$MZ $h1 -c 1 -a own -b 01:00:5e:00:01:81 \
+		-A 192.0.2.1 -B 224.0.1.129 \
+		-t udp sp=12345,dp=320,payload=1b -p 100 -q
+}
+
+flow_action_sample_test()
+{
+	# Install a filter that samples every incoming packet.
+	tc qdisc add dev $rp1 clsact
+	tc filter add dev $rp1 ingress proto all pref 1 handle 101 matchall \
+		skip_sw action sample rate 1 group 1
+
+	devlink_trap_stats_test "Flow Sampling" "flow_action_sample" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 198.51.100.1 -t udp sp=12345,dp=54321 -p 100 -q
+
+	tc filter del dev $rp1 ingress proto all pref 1 handle 101 matchall
+	tc qdisc del dev $rp1 clsact
+}
+
+flow_action_trap_test()
+{
+	# Install a filter that traps a specific flow.
+	tc qdisc add dev $rp1 clsact
+	tc filter add dev $rp1 ingress proto ip pref 1 handle 101 flower \
+		skip_sw ip_proto udp src_port 12345 dst_port 54321 action trap
+
+	devlink_trap_stats_test "Flow Trapping (Logging)" "flow_action_trap" \
+		$MZ $h1 -c 1 -a own -b $(mac_get $rp1) \
+		-A 192.0.2.1 -B 198.51.100.1 -t udp sp=12345,dp=54321 -p 100 -q
+
+	tc filter del dev $rp1 ingress proto ip pref 1 handle 101 flower
+	tc qdisc del dev $rp1 clsact
+}
+
+eapol_payload_get()
+{
+	local source_mac=$1; shift
+	local p
+
+	p=$(:
+		)"01:80:C2:00:00:03:"$(       : ETH daddr
+		)"$source_mac:"$(             : ETH saddr
+		)"88:8E:"$(                   : ETH type
+		)
+	echo $p
+}
+
+eapol_test()
+{
+	local h1mac=$(mac_get $h1)
+
+	devlink_trap_stats_test "EAPOL" "eapol" $MZ $h1 -c 1 \
+		$(eapol_payload_get $h1mac) -p 100 -q
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l2_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l2_drops.sh
new file mode 100755
index 000000000000..8d4b2c6265b3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l2_drops.sh
@@ -0,0 +1,535 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap L2 drops functionality over mlxsw. Each registered L2 drop
+# packet trap is tested to make sure it is triggered under the right
+# conditions.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	source_mac_is_multicast_test
+	vlan_tag_mismatch_test
+	ingress_vlan_filter_test
+	ingress_stp_filter_test
+	port_list_is_empty_test
+	port_loopback_filter_test
+	locked_port_test
+"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+source_mac_is_multicast_test()
+{
+	local trap_name="source_mac_is_multicast"
+	local smac=01:02:03:04:05:06
+	local mz_pid
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower src_mac $smac action drop
+
+	$MZ $h1 -c 0 -p 100 -a $smac -b bcast -t ip -d 1msec -q &
+	mz_pid=$!
+
+	RET=0
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	log_test "Source MAC is multicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+}
+
+__vlan_tag_mismatch_test()
+{
+	local trap_name="vlan_tag_mismatch"
+	local dmac=de:ad:be:ef:13:37
+	local opt=$1; shift
+	local mz_pid
+
+	# Remove PVID flag. This should prevent untagged and prio-tagged
+	# packets from entering the bridge.
+	bridge vlan add vid 1 dev $swp1 untagged master
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 "$opt" -c 0 -p 100 -a own -b $dmac -t ip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Add PVID and make sure packets are no longer dropped.
+	bridge vlan add vid 1 dev $swp1 pvid untagged master
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+}
+
+vlan_tag_mismatch_untagged_test()
+{
+	RET=0
+
+	__vlan_tag_mismatch_test
+
+	log_test "VLAN tag mismatch - untagged packets"
+}
+
+vlan_tag_mismatch_vid_0_test()
+{
+	RET=0
+
+	__vlan_tag_mismatch_test "-Q 0"
+
+	log_test "VLAN tag mismatch - prio-tagged packets"
+}
+
+vlan_tag_mismatch_test()
+{
+	vlan_tag_mismatch_untagged_test
+	vlan_tag_mismatch_vid_0_test
+}
+
+ingress_vlan_filter_test()
+{
+	local trap_name="ingress_vlan_filter"
+	local dmac=de:ad:be:ef:13:37
+	local mz_pid
+	local vid=10
+
+	bridge vlan add vid $vid dev $swp2 master
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 -Q $vid -c 0 -p 100 -a own -b $dmac -t ip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Add the VLAN on the bridge port and make sure packets are no longer
+	# dropped.
+	bridge vlan add vid $vid dev $swp1 master
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	log_test "Ingress VLAN filter"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+
+	bridge vlan del vid $vid dev $swp1 master
+	bridge vlan del vid $vid dev $swp2 master
+}
+
+__ingress_stp_filter_test()
+{
+	local trap_name="ingress_spanning_tree_filter"
+	local dmac=de:ad:be:ef:13:37
+	local state=$1; shift
+	local mz_pid
+	local vid=20
+
+	bridge vlan add vid $vid dev $swp2 master
+	bridge vlan add vid $vid dev $swp1 master
+	ip link set dev $swp1 type bridge_slave state $state
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 -Q $vid -c 0 -p 100 -a own -b $dmac -t ip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Change STP state to forwarding and make sure packets are no longer
+	# dropped.
+	ip link set dev $swp1 type bridge_slave state 3
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+
+	bridge vlan del vid $vid dev $swp1 master
+	bridge vlan del vid $vid dev $swp2 master
+}
+
+ingress_stp_filter_listening_test()
+{
+	local state=$1; shift
+
+	RET=0
+
+	__ingress_stp_filter_test $state
+
+	log_test "Ingress STP filter - listening state"
+}
+
+ingress_stp_filter_learning_test()
+{
+	local state=$1; shift
+
+	RET=0
+
+	__ingress_stp_filter_test $state
+
+	log_test "Ingress STP filter - learning state"
+}
+
+ingress_stp_filter_test()
+{
+	ingress_stp_filter_listening_test 1
+	ingress_stp_filter_learning_test 2
+}
+
+port_list_is_empty_uc_test()
+{
+	local trap_name="port_list_is_empty"
+	local dmac=de:ad:be:ef:13:37
+	local mz_pid
+
+	# Disable unicast flooding on both ports, so that packets cannot egress
+	# any port.
+	ip link set dev $swp1 type bridge_slave flood off
+	ip link set dev $swp2 type bridge_slave flood off
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 -c 0 -p 100 -a own -b $dmac -t ip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Allow packets to be flooded to one port.
+	ip link set dev $swp2 type bridge_slave flood on
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	log_test "Port list is empty - unicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+
+	ip link set dev $swp1 type bridge_slave flood on
+}
+
+port_list_is_empty_mc_test()
+{
+	local trap_name="port_list_is_empty"
+	local dmac=01:00:5e:00:00:01
+	local dip=239.0.0.1
+	local mz_pid
+
+	# Disable multicast flooding on both ports, so that packets cannot
+	# egress any port. We also need to flush IP addresses from the bridge
+	# in order to prevent packets from being flooded to the router port.
+	ip link set dev $swp1 type bridge_slave mcast_flood off
+	ip link set dev $swp2 type bridge_slave mcast_flood off
+	ip address flush dev br0
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 -c 0 -p 100 -a own -b $dmac -t ip -B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Allow packets to be flooded to one port.
+	ip link set dev $swp2 type bridge_slave mcast_flood on
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	log_test "Port list is empty - multicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+
+	ip link set dev $swp1 type bridge_slave mcast_flood on
+}
+
+port_list_is_empty_test()
+{
+	port_list_is_empty_uc_test
+	port_list_is_empty_mc_test
+}
+
+port_loopback_filter_uc_test()
+{
+	local trap_name="port_loopback_filter"
+	local dmac=de:ad:be:ef:13:37
+	local mz_pid
+
+	# Make sure packets can only egress the input port.
+	ip link set dev $swp2 type bridge_slave flood off
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 \
+		flower dst_mac $dmac action drop
+
+	$MZ $h1 -c 0 -p 100 -a own -b $dmac -t ip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp2 101
+
+	# Allow packets to be flooded.
+	ip link set dev $swp2 type bridge_slave flood on
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle when packets should not be dropped"
+	devlink_trap_group_stats_idle_test $(devlink_trap_group_get $trap_name)
+	check_err $? "Trap group stats not idle with when packets should not be dropped"
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_fail $? "Packets not forwarded when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	log_test "Port loopback filter - unicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp2 ip 1 101
+}
+
+port_loopback_filter_test()
+{
+	port_loopback_filter_uc_test
+}
+
+locked_port_miss_test()
+{
+	local trap_name="locked_port"
+	local smac=00:11:22:33:44:55
+
+	bridge link set dev $swp1 learning off
+	bridge link set dev $swp1 locked on
+
+	RET=0
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased before setting action to \"trap\""
+
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_err $? "Trap stats did not increase when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after setting action to \"drop\""
+
+	devlink_trap_action_set $trap_name "trap"
+
+	bridge fdb replace $smac dev $swp1 master static vlan 1
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after adding an FDB entry"
+
+	bridge fdb del $smac dev $swp1 master static vlan 1
+	bridge link set dev $swp1 locked off
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after unlocking port"
+
+	log_test "Locked port - FDB miss"
+
+	devlink_trap_action_set $trap_name "drop"
+	bridge link set dev $swp1 learning on
+}
+
+locked_port_mismatch_test()
+{
+	local trap_name="locked_port"
+	local smac=00:11:22:33:44:55
+
+	bridge link set dev $swp1 learning off
+	bridge link set dev $swp1 locked on
+
+	RET=0
+
+	bridge fdb replace $smac dev $swp2 master static vlan 1
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased before setting action to \"trap\""
+
+	devlink_trap_action_set $trap_name "trap"
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_err $? "Trap stats did not increase when should"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after setting action to \"drop\""
+
+	devlink_trap_action_set $trap_name "trap"
+	bridge link set dev $swp1 locked off
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after unlocking port"
+
+	bridge link set dev $swp1 locked on
+	bridge fdb replace $smac dev $swp1 master static vlan 1
+
+	devlink_trap_stats_check $trap_name $MZ $h1 -c 1 \
+		-a $smac -b $(mac_get $h2) -A 192.0.2.1 -B 192.0.2.2 -p 100 -q
+	check_fail $? "Trap stats increased after replacing an FDB entry"
+
+	bridge fdb del $smac dev $swp1 master static vlan 1
+	devlink_trap_action_set $trap_name "drop"
+
+	log_test "Locked port - FDB mismatch"
+
+	bridge link set dev $swp1 locked off
+	bridge link set dev $swp1 learning on
+}
+
+locked_port_test()
+{
+	locked_port_miss_test
+	locked_port_mismatch_test
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh
new file mode 100755
index 000000000000..db5806d189bb
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_drops.sh
@@ -0,0 +1,696 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap L3 drops functionality over mlxsw. Each registered L3 drop
+# packet trap is tested to make sure it is triggered under the right
+# conditions.
+
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    | 2001:db8:1::1/64           |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# |    |  default via 2001:db8:1::2 |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |        2001:db8:1::2/64                                                   |
+# |                                                                           |
+# |        2001:db8:2::2/64                                                   |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |  default via 2001:db8:2::2 |
+# |    |                            |
+# |    | 2001:db8:2::1/64           |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	non_ip_test
+	uc_dip_over_mc_dmac_test
+	dip_is_loopback_test
+	sip_is_mc_test
+	sip_is_loopback_test
+	ip_header_corrupted_test
+	ipv4_sip_is_limited_bc_test
+	ipv6_mc_dip_reserved_scope_test
+	ipv6_mc_dip_interface_local_scope_test
+	blackhole_route_test
+	irif_disabled_test
+	erif_disabled_test
+	blackhole_nexthop_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $h2_ipv4/24 $h2_ipv6/64
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 $h2_ipv4/24 $h2_ipv6/64
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp2 clsact
+
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	__addr_add_del $rp2 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+	__addr_add_del $rp2 del 198.51.100.2/24 2001:db8:2::2/64
+	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
+
+	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	rp1mac=$(mac_get $rp1)
+
+	h1_ipv4=192.0.2.1
+	h2_ipv4=198.51.100.1
+	h1_ipv6=2001:db8:1::1
+	h2_ipv6=2001:db8:2::1
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_check()
+{
+	trap_name=$1; shift
+
+	devlink_trap_action_set $trap_name "trap"
+	ping_do $h1 $h2_ipv4
+	check_err $? "Packets that should not be trapped were trapped"
+	devlink_trap_action_set $trap_name "drop"
+}
+
+non_ip_test()
+{
+	local trap_name="non_ip"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower dst_ip $h2_ipv4 action drop
+
+	# Generate non-IP packets to the router
+	$MZ $h1 -c 0 -p 100 -d 1msec -B $h2_ipv4 -q "$rp1mac $h1mac \
+		00:00 de:ad:be:ef" &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "Non IP"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ip" 1 101
+}
+
+__uc_dip_over_mc_dmac_test()
+{
+	local desc=$1; shift
+	local proto=$1; shift
+	local dip=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="uc_dip_over_mc_dmac"
+	local dmac=01:02:03:04:05:06
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower ip_proto udp src_port 54321 dst_port 12345 action drop
+
+	# Generate IP packets with a unicast IP and a multicast destination MAC
+	$MZ $h1 $flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -b $dmac \
+		-B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "Unicast destination IP over multicast destination MAC: $desc"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+}
+
+uc_dip_over_mc_dmac_test()
+{
+	__uc_dip_over_mc_dmac_test "IPv4" "ip" $h2_ipv4
+	__uc_dip_over_mc_dmac_test "IPv6" "ipv6" $h2_ipv6 "-6"
+}
+
+__sip_is_loopback_test()
+{
+	local desc=$1; shift
+	local proto=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="sip_is_loopback_address"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower src_ip $sip action drop
+
+	# Generate packets with loopback source IP
+	$MZ $h1 $flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -A $sip \
+		-b $rp1mac -B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "Source IP is loopback address: $desc"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+}
+
+sip_is_loopback_test()
+{
+	__sip_is_loopback_test "IPv4" "ip" "127.0.0.0/8" $h2_ipv4
+	__sip_is_loopback_test "IPv6" "ipv6" "::1" $h2_ipv6 "-6"
+}
+
+__dip_is_loopback_test()
+{
+	local desc=$1; shift
+	local proto=$1; shift
+	local dip=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="dip_is_loopback_address"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower dst_ip $dip action drop
+
+	# Generate packets with loopback destination IP
+	$MZ $h1 $flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -b $rp1mac \
+		-B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "Destination IP is loopback address: $desc"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+}
+
+dip_is_loopback_test()
+{
+	__dip_is_loopback_test "IPv4" "ip" "127.0.0.0/8"
+	__dip_is_loopback_test "IPv6" "ipv6" "::1" "-6"
+}
+
+__sip_is_mc_test()
+{
+	local desc=$1; shift
+	local proto=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="sip_is_mc"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower src_ip $sip action drop
+
+	# Generate packets with multicast source IP
+	$MZ $h1 $flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -A $sip \
+		-b $rp1mac -B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "Source IP is multicast: $desc"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+}
+
+sip_is_mc_test()
+{
+	__sip_is_mc_test "IPv4" "ip" "239.1.1.1" $h2_ipv4
+	__sip_is_mc_test "IPv6" "ipv6" "FF02::2" $h2_ipv6 "-6"
+}
+
+ipv4_sip_is_limited_bc_test()
+{
+	local trap_name="ipv4_sip_is_limited_bc"
+	local sip=255.255.255.255
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower src_ip $sip action drop
+
+	# Generate packets with limited broadcast source IP
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 0 -p 100 -A $sip -b $rp1mac \
+		-B $h2_ipv4 -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "IPv4 source IP is limited broadcast"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ip" 1 101
+}
+
+ipv4_payload_get()
+{
+	local ipver=$1; shift
+	local ihl=$1; shift
+	local checksum=$1; shift
+
+	p=$(:
+		)"08:00:"$(                   : ETH type
+		)"$ipver"$(                   : IP version
+		)"$ihl:"$(                    : IHL
+		)"00:"$(		      : IP TOS
+		)"00:F4:"$(                   : IP total length
+		)"00:00:"$(                   : IP identification
+		)"20:00:"$(                   : IP flags + frag off
+		)"30:"$(                      : IP TTL
+		)"01:"$(                      : IP proto
+		)"$checksum:"$(               : IP header csum
+		)"$h1_ipv4:"$(                : IP saddr
+	        )"$h2_ipv4:"$(                : IP daddr
+		)
+	echo $p
+}
+
+__ipv4_header_corrupted_test()
+{
+	local desc=$1; shift
+	local ipver=$1; shift
+	local ihl=$1; shift
+	local checksum=$1; shift
+	local trap_name="ip_header_corrupted"
+	local payload
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower dst_ip $h2_ipv4 action drop
+
+	payload=$(ipv4_payload_get $ipver $ihl $checksum)
+
+	# Generate packets with corrupted IP header
+	$MZ $h1 -c 0 -d 1msec -a $h1mac -b $rp1mac -q p=$payload &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "IP header corrupted: $desc: IPv4"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ip" 1 101
+}
+
+ipv6_payload_get()
+{
+	local ipver=$1; shift
+
+	p=$(:
+		)"86:DD:"$(                  : ETH type
+		)"$ipver"$(                  : IP version
+		)"0:0:"$(                    : Traffic class
+		)"0:00:00:"$(		     : Flow label
+		)"00:00:"$(                  : Payload length
+		)"01:"$(                     : Next header
+		)"04:"$(                     : Hop limit
+		)"$h1_ipv6:"$(      	     : IP saddr
+		)"$h2_ipv6:"$(               : IP daddr
+		)
+	echo $p
+}
+
+__ipv6_header_corrupted_test()
+{
+	local desc=$1; shift
+	local ipver=$1; shift
+	local trap_name="ip_header_corrupted"
+	local payload
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower dst_ip $h2_ipv4 action drop
+
+	payload=$(ipv6_payload_get $ipver)
+
+	# Generate packets with corrupted IP header
+	$MZ $h1 -c 0 -d 1msec -a $h1mac -b $rp1mac -q p=$payload &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "IP header corrupted: $desc: IPv6"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ip" 1 101
+}
+
+ip_header_corrupted_test()
+{
+	# Each test uses one wrong value. The three values below are correct.
+	local ipv="4"
+	local ihl="5"
+	local checksum="00:F4"
+
+	__ipv4_header_corrupted_test "wrong IP version" 5 $ihl $checksum
+	__ipv4_header_corrupted_test "wrong IHL" $ipv 4 $checksum
+	__ipv4_header_corrupted_test "wrong checksum" $ipv $ihl "00:00"
+	__ipv6_header_corrupted_test "wrong IP version" 5
+}
+
+ipv6_mc_dip_reserved_scope_test()
+{
+	local trap_name="ipv6_mc_dip_reserved_scope"
+	local dip=FF00::
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ipv6 pref 1 handle 101 \
+		flower dst_ip $dip action drop
+
+	# Generate packets with reserved scope destination IP
+	$MZ $h1 -6 -t udp "sp=54321,dp=12345" -c 0 -p 100 -b \
+		"33:33:00:00:00:00" -B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "IPv6 multicast destination IP reserved scope"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ipv6" 1 101
+}
+
+ipv6_mc_dip_interface_local_scope_test()
+{
+	local trap_name="ipv6_mc_dip_interface_local_scope"
+	local dip=FF01::
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	tc filter add dev $rp2 egress protocol ipv6 pref 1 handle 101 \
+		flower dst_ip $dip action drop
+
+	# Generate packets with interface local scope destination IP
+	$MZ $h1 -6 -t udp "sp=54321,dp=12345" -c 0 -p 100 -b \
+		"33:33:00:00:00:00" -B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+
+	log_test "IPv6 multicast destination IP interface-local scope"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 "ipv6" 1 101
+}
+
+__blackhole_route_test()
+{
+	local flags=$1; shift
+	local subnet=$1; shift
+	local proto=$1; shift
+	local dip=$1; shift
+	local ip_proto=${1:-"icmp"}; shift
+	local trap_name="blackhole_route"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	ip -$flags route add blackhole $subnet
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower skip_hw dst_ip $dip ip_proto $ip_proto action drop
+
+	# Generate packets to the blackhole route
+	$MZ $h1 -$flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -b $rp1mac \
+		-B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+	log_test "Blackhole route: IPv$flags"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+	ip -$flags route del blackhole $subnet
+}
+
+blackhole_route_test()
+{
+	__blackhole_route_test "4" "198.51.100.0/30" "ip" $h2_ipv4
+	__blackhole_route_test "6" "2001:db8:2::/120" "ipv6" $h2_ipv6 "icmpv6"
+}
+
+irif_disabled_test()
+{
+	local trap_name="irif_disabled"
+	local t0_packets t0_bytes
+	local t1_packets t1_bytes
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	devlink_trap_action_set $trap_name "trap"
+
+	# When RIF of a physical port ("Sub-port RIF") is destroyed, we first
+	# block the STP of the {Port, VLAN} so packets cannot get into the RIF.
+	# Using bridge enables us to see this trap because when bridge is
+	# destroyed, there is a small time window that packets can go into the
+	# RIF, while it is disabled.
+	ip link add dev br0 type bridge
+	ip link set dev $rp1 master br0
+	ip address flush dev $rp1
+	__addr_add_del br0 add 192.0.2.2/24
+	ip li set dev br0 up
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	# Generate packets to h2 through br0 RIF that will be removed later
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 0 -p 100 -a own -b $rp1mac \
+		-B $h2_ipv4 -q &
+	mz_pid=$!
+
+	# Wait before removing br0 RIF to allow packets to go into the bridge.
+	sleep 1
+
+	# Flushing address will dismantle the RIF
+	ip address flush dev br0
+
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+		check_err 1 "Trap stats idle when packets should be trapped"
+	fi
+
+	log_test "Ingress RIF disabled"
+
+	kill_process $mz_pid
+	ip link set dev $rp1 nomaster
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	ip link del dev br0 type bridge
+	devlink_trap_action_set $trap_name "drop"
+}
+
+erif_disabled_test()
+{
+	local trap_name="erif_disabled"
+	local t0_packets t0_bytes
+	local t1_packets t1_bytes
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+
+	devlink_trap_action_set $trap_name "trap"
+	ip link add dev br0 type bridge
+	ip add flush dev $rp1
+	ip link set dev $rp1 master br0
+	__addr_add_del br0 add 192.0.2.2/24
+	ip link set dev br0 up
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	rp2mac=$(mac_get $rp2)
+
+	# Generate packets that should go out through br0 RIF that will be
+	# removed later
+	$MZ $h2 -t udp "sp=54321,dp=12345" -c 0 -p 100 -a own -b $rp2mac \
+		-B 192.0.2.1 -q &
+	mz_pid=$!
+
+	sleep 5
+	# Unlinking the port from the bridge will disable the RIF associated
+	# with br0 as it is no longer an upper of any mlxsw port.
+	ip link set dev $rp1 nomaster
+
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+		check_err 1 "Trap stats idle when packets should be trapped"
+	fi
+
+	log_test "Egress RIF disabled"
+
+	kill_process $mz_pid
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	ip link del dev br0 type bridge
+	devlink_trap_action_set $trap_name "drop"
+}
+
+__blackhole_nexthop_test()
+{
+	local flags=$1; shift
+	local subnet=$1; shift
+	local proto=$1; shift
+	local dip=$1; shift
+	local trap_name="blackhole_nexthop"
+	local mz_pid
+
+	RET=0
+
+	ip -$flags nexthop add id 1 blackhole
+	ip -$flags route add $subnet nhid 1
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower skip_hw dst_ip $dip ip_proto udp action drop
+
+	# Generate packets to the blackhole nexthop
+	$MZ $h1 -$flags -t udp "sp=54321,dp=12345" -c 0 -p 100 -b $rp1mac \
+		-B $dip -d 1msec -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $rp2 101
+	log_test "Blackhole nexthop: IPv$flags"
+
+	devlink_trap_drop_cleanup $mz_pid $rp2 $proto 1 101
+	ip -$flags route del $subnet
+	ip -$flags nexthop del id 1
+}
+
+blackhole_nexthop_test()
+{
+	__blackhole_nexthop_test "4" "198.51.100.0/30" "ip" $h2_ipv4
+	__blackhole_nexthop_test "6" "2001:db8:2::/120" "ipv6" $h2_ipv6
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh
new file mode 100755
index 000000000000..5d6d88b600f0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_l3_exceptions.sh
@@ -0,0 +1,583 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap L3 exceptions functionality over mlxsw.
+# Check all exception traps to make sure they are triggered under the right
+# conditions.
+
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    | 2001:db8:1::1/64           |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# |    |  default via 2001:db8:1::2 |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |        2001:db8:1::2/64                                                   |
+# |                                                                           |
+# |        2001:db8:2::2/64                                                   |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |  default via 2001:db8:2::2 |
+# |    |                            |
+# |    | 2001:db8:2::1/64           |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	mtu_value_is_too_small_test
+	ttl_value_is_too_small_test
+	mc_reverse_path_forwarding_test
+	reject_route_test
+	unresolved_neigh_test
+	ipv4_lpm_miss_test
+	ipv6_lpm_miss_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+require_command $MCD
+require_command $MC_CLI
+table_name=selftests
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+
+	tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+
+	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp2 clsact
+
+	__addr_add_del $rp1 add 192.0.2.2/24 2001:db8:1::2/64
+	__addr_add_del $rp2 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+router_destroy()
+{
+	__addr_add_del $rp2 del 198.51.100.2/24 2001:db8:2::2/64
+	__addr_add_del $rp1 del 192.0.2.2/24 2001:db8:1::2/64
+
+	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1mac=$(mac_get $rp1)
+
+	start_mcd
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+
+	kill_mcd
+}
+
+ping_check()
+{
+	ping_do $h1 198.51.100.1
+	check_err $? "Packets that should not be trapped were trapped"
+}
+
+trap_action_check()
+{
+	local trap_name=$1; shift
+	local expected_action=$1; shift
+
+	action=$(devlink_trap_action_get $trap_name)
+	if [ "$action" != $expected_action ]; then
+		check_err 1 "Trap $trap_name has wrong action: $action"
+	fi
+}
+
+mtu_value_is_too_small_test()
+{
+	local trap_name="mtu_value_is_too_small"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	# type - Destination Unreachable
+	# code - Fragmentation Needed and Don't Fragment was Set
+	tc filter add dev $h1 ingress protocol ip pref 1 handle 101 \
+		flower skip_hw ip_proto icmp type 3 code 4 action pass
+
+	mtu_set $rp2 1300
+
+	# Generate IP packets bigger than router's MTU with don't fragment
+	# flag on.
+	$MZ $h1 -t udp "sp=54321,dp=12345,df" -p 1400 -c 0 -d 1msec -b $rp1mac \
+		-B 198.51.100.1 -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets_hitting "dev $h1 ingress" 101
+	check_err $? "Packets were not received to h1"
+
+	log_test "MTU value is too small"
+
+	mtu_restore $rp2
+
+	kill_process $mz_pid
+	tc filter del dev $h1 ingress protocol ip pref 1 handle 101 flower
+}
+
+__ttl_value_is_too_small_test()
+{
+	local ttl_val=$1; shift
+	local trap_name="ttl_value_is_too_small"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	# type - Time Exceeded
+	# code - Time to Live exceeded in Transit
+	tc filter add dev $h1 ingress protocol ip pref 1 handle 101 \
+		 flower skip_hw ip_proto icmp type 11 code 0 action pass
+
+	# Generate IP packets with small TTL
+	$MZ $h1 -t udp "ttl=$ttl_val,sp=54321,dp=12345" -c 0 -d 1msec \
+		-b $rp1mac -B 198.51.100.1 -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets_hitting "dev $h1 ingress" 101
+	check_err $? "Packets were not received to h1"
+
+	log_test "TTL value is too small: TTL=$ttl_val"
+
+	kill_process $mz_pid
+	tc filter del dev $h1 ingress protocol ip pref 1 handle 101 flower
+}
+
+ttl_value_is_too_small_test()
+{
+	__ttl_value_is_too_small_test 0
+	__ttl_value_is_too_small_test 1
+}
+
+start_mcd()
+{
+	SMCROUTEDIR="$(mktemp -d)"
+	for ((i = 1; i <= $NUM_NETIFS; ++i)); do
+		 echo "phyint ${NETIFS[p$i]} enable" >> \
+			 $SMCROUTEDIR/$table_name.conf
+	done
+
+	$MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
+		-P $SMCROUTEDIR/$table_name.pid
+}
+
+kill_mcd()
+{
+	pkill $MCD
+	rm -rf $SMCROUTEDIR
+}
+
+__mc_reverse_path_forwarding_test()
+{
+	local desc=$1; shift
+	local src_ip=$1; shift
+	local dst_ip=$1; shift
+	local dst_mac=$1; shift
+	local proto=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="mc_reverse_path_forwarding"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower dst_ip $dst_ip ip_proto udp action drop
+
+	$MC_CLI -I $table_name add $rp1 $src_ip $dst_ip $rp2
+
+	# Generate packets to multicast address.
+	$MZ $h2 $flags -t udp "sp=54321,dp=12345" -c 0 -p 128 \
+		-a 00:11:22:33:44:55 -b $dst_mac \
+		-A $src_ip -B $dst_ip -q &
+
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $rp2 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "Multicast reverse path forwarding: $desc"
+
+	kill_process $mz_pid
+	tc filter del dev $rp2 egress protocol $proto pref 1 handle 101 flower
+}
+
+mc_reverse_path_forwarding_test()
+{
+	__mc_reverse_path_forwarding_test "IPv4" "192.0.2.1" "225.1.2.3" \
+		"01:00:5e:01:02:03" "ip"
+	__mc_reverse_path_forwarding_test "IPv6" "2001:db8:1::1" "ff0e::3" \
+		"33:33:00:00:00:03" "ipv6" "-6"
+}
+
+__reject_route_test()
+{
+	local desc=$1; shift
+	local dst_ip=$1; shift
+	local proto=$1; shift
+	local ip_proto=$1; shift
+	local type=$1; shift
+	local code=$1; shift
+	local unreachable=$1; shift
+	local flags=${1:-""}; shift
+	local trap_name="reject_route"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	tc filter add dev $h1 ingress protocol $proto pref 1 handle 101 flower \
+		skip_hw ip_proto $ip_proto type $type code $code action pass
+
+	ip route add unreachable $unreachable
+
+	# Generate pacekts to h2. The destination IP is unreachable.
+	$MZ $flags $h1 -t udp "sp=54321,dp=12345" -c 0 -d 1msec -b $rp1mac \
+		-B $dst_ip -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets_hitting "dev $h1 ingress" 101
+	check_err $? "ICMP packet was not received to h1"
+
+	log_test "Reject route: $desc"
+
+	kill_process $mz_pid
+	ip route del unreachable $unreachable
+	tc filter del dev $h1 ingress protocol $proto pref 1 handle 101 flower
+}
+
+reject_route_test()
+{
+	# type - Destination Unreachable
+	# code - Host Unreachable
+	__reject_route_test "IPv4" 198.51.100.1 "ip" "icmp" 3 1 \
+		"198.51.100.0/26"
+	# type - Destination Unreachable
+	# code - No Route
+	__reject_route_test "IPv6" 2001:db8:2::1 "ipv6" "icmpv6" 1 0 \
+		"2001:db8:2::0/66" "-6"
+}
+
+__host_miss_test()
+{
+	local desc=$1; shift
+	local dip=$1; shift
+	local trap_name="unresolved_neigh"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	ip neigh flush dev $rp2
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	# Generate packets to h2 (will incur a unresolved neighbor).
+	# The ping should pass and devlink counters should be increased.
+	ping_do $h1 $dip
+	check_err $? "ping failed: $desc"
+
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets ]]; then
+		check_err 1 "Trap counter did not increase"
+	fi
+
+	log_test "Unresolved neigh: host miss: $desc"
+}
+
+__invalid_nexthop_test()
+{
+	local desc=$1; shift
+	local dip=$1; shift
+	local extra_add=$1; shift
+	local subnet=$1; shift
+	local via_add=$1; shift
+	local trap_name="unresolved_neigh"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	ip address add $extra_add/$subnet dev $h2
+
+	# Check that correct route does not trigger unresolved_neigh
+	ip $flags route add $dip via $extra_add dev $rp2
+
+	# Generate packets in order to discover all neighbours.
+	# Without it, counters of unresolved_neigh will be increased
+	# during neighbours discovery and the check below will fail
+	# for a wrong reason
+	ping_do $h1 $dip
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	ping_do $h1 $dip
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	if [[ $t0_packets -ne $t1_packets ]]; then
+		check_err 1 "Trap counter increased when it should not"
+	fi
+
+	ip $flags route del $dip via $extra_add dev $rp2
+
+	# Check that route to nexthop that does not exist trigger
+	# unresolved_neigh
+	ip $flags route add $dip via $via_add dev $h2
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	ping_do $h1 $dip
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets ]]; then
+		check_err 1 "Trap counter did not increase"
+	fi
+
+	ip $flags route del $dip via $via_add dev $h2
+	ip address del $extra_add/$subnet dev $h2
+	log_test "Unresolved neigh: nexthop does not exist: $desc"
+}
+
+__invalid_nexthop_bucket_test()
+{
+	local desc=$1; shift
+	local dip=$1; shift
+	local via_add=$1; shift
+	local trap_name="unresolved_neigh"
+
+	RET=0
+
+	# Check that route to nexthop that does not exist triggers
+	# unresolved_neigh
+	ip nexthop add id 1 via $via_add dev $rp2
+	ip nexthop add id 10 group 1 type resilient buckets 32
+	ip route add $dip nhid 10
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	ping_do $h1 $dip
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets ]]; then
+		check_err 1 "Trap counter did not increase"
+	fi
+
+	ip route del $dip nhid 10
+	ip nexthop del id 10
+	ip nexthop del id 1
+	log_test "Unresolved neigh: nexthop bucket does not exist: $desc"
+}
+
+unresolved_neigh_test()
+{
+	__host_miss_test "IPv4" 198.51.100.1
+	__host_miss_test "IPv6" 2001:db8:2::1
+	__invalid_nexthop_test "IPv4" 198.51.100.1 198.51.100.3 24 198.51.100.4
+	__invalid_nexthop_test "IPv6" 2001:db8:2::1 2001:db8:2::3 64 \
+		2001:db8:2::4
+	__invalid_nexthop_bucket_test "IPv4" 198.51.100.1 198.51.100.4
+	__invalid_nexthop_bucket_test "IPv6" 2001:db8:2::1 2001:db8:2::4
+}
+
+vrf_without_routes_create()
+{
+	# VRF creating makes the links to be down and then up again.
+	# By default, IPv6 address is not saved after link becomes down.
+	# Save IPv6 address using sysctl configuration.
+	sysctl_set net.ipv6.conf.$rp1.keep_addr_on_down 1
+	sysctl_set net.ipv6.conf.$rp2.keep_addr_on_down 1
+
+	ip link add dev vrf1 type vrf table 101
+	ip link set dev $rp1 master vrf1
+	ip link set dev $rp2 master vrf1
+	ip link set dev vrf1 up
+
+	# Wait for rp1 and rp2 to be up
+	setup_wait
+}
+
+vrf_without_routes_destroy()
+{
+	ip link set dev $rp1 nomaster
+	ip link set dev $rp2 nomaster
+	ip link del dev vrf1
+
+	sysctl_restore net.ipv6.conf.$rp2.keep_addr_on_down
+	sysctl_restore net.ipv6.conf.$rp1.keep_addr_on_down
+
+	# Wait for interfaces to be up
+	setup_wait
+}
+
+ipv4_lpm_miss_test()
+{
+	local trap_name="ipv4_lpm_miss"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	# Create a VRF without a default route
+	vrf_without_routes_create
+
+	# Generate packets through a VRF without a matching route.
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 0 -d 1msec -b $rp1mac \
+		-B 203.0.113.1 -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	log_test "LPM miss: IPv4"
+
+	kill_process $mz_pid
+	vrf_without_routes_destroy
+}
+
+ipv6_lpm_miss_test()
+{
+	local trap_name="ipv6_lpm_miss"
+	local expected_action="trap"
+	local mz_pid
+
+	RET=0
+
+	ping_check $trap_name
+	trap_action_check $trap_name $expected_action
+
+	# Create a VRF without a default route
+	vrf_without_routes_create
+
+	# Generate packets through a VRF without a matching route.
+	$MZ -6 $h1 -t udp "sp=54321,dp=12345" -c 0 -d 1msec -b $rp1mac \
+		-B 2001:db8::1 -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	log_test "LPM miss: IPv6"
+
+	kill_process $mz_pid
+	vrf_without_routes_destroy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
new file mode 100755
index 000000000000..e212ad8ccef6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_policer.sh
@@ -0,0 +1,353 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap policer functionality over mlxsw.
+
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |                                                                           |
+# |        198.51.100.2/24                                                    |
+# |    + $rp2                                                                 |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |                            |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	rate_limits_test
+	burst_limits_test
+	rate_test
+	burst_test
+"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	adf_simple_if_init $h1 192.0.2.1/24
+
+	mtu_set $h1 10000
+	defer mtu_restore $h1
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	defer ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h2_create()
+{
+	adf_simple_if_init $h2 198.51.100.1/24
+
+	mtu_set $h2 10000
+	defer mtu_restore $h2
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	defer ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	defer ip link set dev $rp1 down
+
+	ip link set dev $rp2 up
+	defer ip link set dev $rp2 down
+
+	__addr_add_del $rp1 add 192.0.2.2/24
+	defer __addr_add_del $rp1 del 192.0.2.2/24
+
+	__addr_add_del $rp2 add 198.51.100.2/24
+	defer __addr_add_del $rp2 del 198.51.100.2/24
+
+	mtu_set $rp1 10000
+	defer mtu_restore $rp1
+
+	mtu_set $rp2 10000
+	defer mtu_restore $rp2
+
+	ip -4 route add blackhole 198.51.100.100
+	defer ip -4 route del blackhole 198.51.100.100
+
+	devlink trap set $DEVLINK_DEV trap blackhole_route action trap
+	defer devlink trap set $DEVLINK_DEV trap blackhole_route action drop
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1_mac=$(mac_get $rp1)
+
+	# Reload to ensure devlink-trap settings are back to default.
+	defer devlink_reload
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+}
+
+rate_limits_test()
+{
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 0 &> /dev/null
+	check_fail $? "Policer rate was changed to rate lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 \
+		rate 2000000001 &> /dev/null
+	check_fail $? "Policer rate was changed to rate higher than limit"
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 1
+	check_err $? "Failed to set policer rate to minimum"
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 2000000000
+	check_err $? "Failed to set policer rate to maximum"
+
+	log_test "Trap policer rate limits"
+}
+
+burst_limits_test()
+{
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 0 &> /dev/null
+	check_fail $? "Policer burst size was changed to 0"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 17 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size that is not power of 2"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 8 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 \
+		burst $((2**25)) &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size higher than limit"
+
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 16
+	check_err $? "Failed to set policer burst size to minimum"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst $((2**24))
+	check_err $? "Failed to set policer burst size to maximum"
+
+	log_test "Trap policer burst size limits"
+}
+
+trap_rate_get()
+{
+	local t0 t1
+
+	t0=$(devlink_trap_rx_packets_get blackhole_route)
+	sleep 10
+	t1=$(devlink_trap_rx_packets_get blackhole_route)
+
+	echo $(((t1 - t0) / 10))
+}
+
+policer_drop_rate_get()
+{
+	local id=$1; shift
+	local t0 t1
+
+	t0=$(devlink_trap_policer_rx_dropped_get $id)
+	sleep 10
+	t1=$(devlink_trap_policer_rx_dropped_get $id)
+
+	echo $(((t1 - t0) / 10))
+}
+
+__rate_test()
+{
+	local rate pct drop_rate
+	local id=$1; shift
+
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 512
+	devlink trap group set $DEVLINK_DEV group l3_drops policer $id
+
+	# Send packets at highest possible rate and make sure they are dropped
+	# by the policer. Make sure measured received rate is about 1000 pps
+	log_info "=== Tx rate: Highest, Policer rate: 1000 pps ==="
+
+	defer_scope_push
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+	defer stop_traffic $!
+
+	sleep 5 # Take measurements when rate is stable
+
+	rate=$(trap_rate_get)
+	pct=$((100 * (rate - 1000) / 1000))
+	((-10 <= pct && pct <= 10))
+	check_err $? "Expected rate 1000 pps, got $rate pps, which is $pct% off. Required accuracy is +-10%"
+	log_info "Expected rate 1000 pps, measured rate $rate pps"
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate > 0 ))
+	check_err $? "Expected non-zero policer drop rate, got 0"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	defer_scope_pop
+
+	# Send packets at a rate of 1000 pps and make sure they are not dropped
+	# by the policer
+	log_info "=== Tx rate: 1000 pps, Policer rate: 1000 pps ==="
+
+	defer_scope_push
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -d 1msec
+	defer stop_traffic $!
+
+	sleep 5 # Take measurements when rate is stable
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate == 0 ))
+	check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	defer_scope_pop
+
+	# Unbind the policer and send packets at highest possible rate. Make
+	# sure they are not dropped by the policer and that the measured
+	# received rate is higher than 1000 pps
+	log_info "=== Tx rate: Highest, Policer rate: No policer ==="
+
+	devlink trap group set $DEVLINK_DEV group l3_drops nopolicer
+
+	defer_scope_push
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac
+	defer stop_traffic $!
+
+	rate=$(trap_rate_get)
+	(( rate > 1000 ))
+	check_err $? "Expected rate higher than 1000 pps, got $rate pps"
+	log_info "Measured rate $rate pps"
+
+	drop_rate=$(policer_drop_rate_get $id)
+	(( drop_rate == 0 ))
+	check_err $? "Expected zero policer drop rate, got a drop rate of $drop_rate pps"
+	log_info "Measured policer drop rate of $drop_rate pps"
+
+	defer_scope_pop
+
+	log_test "Trap policer rate"
+}
+
+rate_test()
+{
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
+
+	log_info "Running rate test for policer 1"
+	__rate_test 1
+
+	log_info "Running rate test for policer $((last_policer / 2))"
+	__rate_test $((last_policer / 2))
+
+	log_info "Running rate test for policer $last_policer"
+	__rate_test $last_policer
+}
+
+__burst_test()
+{
+	local t0_rx t0_drop t1_rx t1_drop rx drop
+	local id=$1; shift
+
+	RET=0
+
+	devlink trap policer set $DEVLINK_DEV policer $id rate 1000 burst 512
+	devlink trap group set $DEVLINK_DEV group l3_drops policer $id
+
+	# Send a burst of 16 packets and make sure that 16 are received
+	# and that none are dropped by the policer
+	log_info "=== Tx burst size: 16, Policer burst size: 512 ==="
+
+	t0_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t0_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -c 16
+
+	t1_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t1_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	rx=$((t1_rx - t0_rx))
+	(( rx == 16 ))
+	check_err $? "Expected burst size of 16 packets, got $rx packets"
+	log_info "Expected burst size of 16 packets, measured burst size of $rx packets"
+
+	drop=$((t1_drop - t0_drop))
+	(( drop == 0 ))
+	check_err $? "Expected zero policer drops, got $drop"
+	log_info "Measured policer drops of $drop packets"
+
+	# Unbind the policer and send a burst of 64 packets. Make sure that
+	# 64 packets are received and that none are dropped by the policer
+	log_info "=== Tx burst size: 64, Policer burst size: No policer ==="
+
+	devlink trap group set $DEVLINK_DEV group l3_drops nopolicer
+
+	t0_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t0_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	start_traffic $h1 192.0.2.1 198.51.100.100 $rp1_mac -c 64
+
+	t1_rx=$(devlink_trap_rx_packets_get blackhole_route)
+	t1_drop=$(devlink_trap_policer_rx_dropped_get $id)
+
+	rx=$((t1_rx - t0_rx))
+	(( rx == 64 ))
+	check_err $? "Expected burst size of 64 packets, got $rx packets"
+	log_info "Expected burst size of 64 packets, measured burst size of $rx packets"
+
+	drop=$((t1_drop - t0_drop))
+	(( drop == 0 ))
+	check_err $? "Expected zero policer drops, got $drop"
+	log_info "Measured policer drops of $drop packets"
+
+	log_test "Trap policer burst size"
+}
+
+burst_test()
+{
+	local last_policer=$(devlink -j -p trap policer show |
+			     jq '[.[]["'$DEVLINK_DEV'"][].policer] | max')
+
+	log_info "Running burst test for policer 1"
+	__burst_test 1
+
+	log_info "Running burst test for policer $((last_policer / 2))"
+	__burst_test $((last_policer / 2))
+
+	log_info "Running burst test for policer $last_policer"
+	__burst_test $last_policer
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh
new file mode 100755
index 000000000000..4ac1dae92d0f
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip.sh
@@ -0,0 +1,249 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap tunnel exceptions functionality over mlxsw.
+# Check all exception traps to make sure they are triggered under the right
+# conditions.
+
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |      192.0.2.1/28 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-----+
+# | SW1               |     |
+# |             $swp1 +     |
+# |      192.0.2.2/28       |
+# |                         |
+# |  + g1a (gre)            |
+# |    loc=192.0.2.65       |
+# |    rem=192.0.2.66       |
+# |    tos=inherit          |
+# |                         |
+# |  + $rp1                 |
+# |  |  198.51.100.1/28     |
+# +--|----------------------+
+#    |
+# +--|----------------------+
+# |  |                 VRF2 |
+# |  + $rp2                 |
+# |    198.51.100.2/28      |
+# +-------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	decap_error_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+vrf2_create()
+{
+	simple_if_init $rp2 198.51.100.2/28
+}
+
+vrf2_destroy()
+{
+	simple_if_fini $rp2 198.51.100.2/28
+}
+
+switch_create()
+{
+	__addr_add_del $swp1 add 192.0.2.2/28
+	tc qdisc add dev $swp1 clsact
+	ip link set dev $swp1 up
+
+	tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit
+	__addr_add_del g1 add 192.0.2.65/32
+	ip link set dev g1 up
+
+	__addr_add_del $rp1 add 198.51.100.1/28
+	ip link set dev $rp1 up
+}
+
+switch_destroy()
+{
+	ip link set dev $rp1 down
+	__addr_add_del $rp1 del 198.51.100.1/28
+
+	ip link set dev g1 down
+	__addr_add_del g1 del 192.0.2.65/32
+	tunnel_destroy g1
+
+	ip link set dev $swp1 down
+	tc qdisc del dev $swp1 clsact
+	__addr_add_del $swp1 del 192.0.2.2/28
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	switch_create
+	vrf2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrf2_destroy
+	switch_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+ipip_payload_get()
+{
+	local flags=$1; shift
+	local key=$1; shift
+
+	p=$(:
+		)"$flags"$(		      : GRE flags
+	        )"0:00:"$(                    : Reserved + version
+		)"08:00:"$(		      : ETH protocol type
+		)"$key"$( 		      : Key
+		)"4"$(	                      : IP version
+		)"5:"$(                       : IHL
+		)"00:"$(                      : IP TOS
+		)"00:14:"$(                   : IP total length
+		)"00:00:"$(                   : IP identification
+		)"20:00:"$(                   : IP flags + frag off
+		)"30:"$(                      : IP TTL
+		)"01:"$(                      : IP proto
+		)"E7:E6:"$(    	              : IP header csum
+		)"C0:00:01:01:"$(             : IP saddr : 192.0.1.1
+		)"C0:00:02:01:"$(             : IP daddr : 192.0.2.1
+		)
+	echo $p
+}
+
+ecn_payload_get()
+{
+	echo $(ipip_payload_get "0")
+}
+
+ecn_decap_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local ecn_desc=$1; shift
+	local outer_tos=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower src_ip 192.0.1.1 dst_ip 192.0.2.1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	rp2_mac=$(mac_get $rp2)
+	payload=$(ecn_payload_get)
+
+	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \
+		-A 192.0.2.66 -B 192.0.2.65 -t ip \
+			len=48,tos=$outer_tos,proto=47,p=$payload -q &
+
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
+}
+
+no_matching_tunnel_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local sip=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower src_ip 192.0.1.1 dst_ip 192.0.2.1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	rp2_mac=$(mac_get $rp2)
+	payload=$(ipip_payload_get "$@")
+
+	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \
+		-A $sip -B 192.0.2.65 -t ip len=48,proto=47,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
+}
+
+decap_error_test()
+{
+	# Correct source IP - the remote address
+	local sip=192.0.2.66
+
+	ecn_decap_test "Decap error" "ECT(1)" 01
+	ecn_decap_test "Decap error" "ECT(0)" 02
+	ecn_decap_test "Decap error" "CE" 03
+
+	no_matching_tunnel_test "Decap error: Source IP check failed" \
+		192.0.2.68 "0"
+	no_matching_tunnel_test \
+		"Decap error: Key exists but was not expected" $sip "2" \
+		"00:00:00:E9:"
+
+	# Destroy the tunnel and create new one with key
+	__addr_add_del g1 del 192.0.2.65/32
+	tunnel_destroy g1
+
+	tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit key 233
+	__addr_add_del g1 add 192.0.2.65/32
+
+	no_matching_tunnel_test \
+		"Decap error: Key does not exist but was expected" $sip "0"
+	no_matching_tunnel_test \
+		"Decap error: Packet has a wrong key field" $sip "2" \
+		"00:00:00:E8:"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh
new file mode 100755
index 000000000000..fce885184404
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_ipip6.sh
@@ -0,0 +1,250 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap tunnel exceptions functionality over mlxsw.
+# Check all exception traps to make sure they are triggered under the right
+# conditions.
+
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |  2001:db8:1::1/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-----+
+# | SW1               |     |
+# |             $swp1 +     |
+# |  2001:db8:1::2/64       |
+# |                         |
+# |  + g1 (ip6gre)          |
+# |    loc=2001:db8:3::1    |
+# |    rem=2001:db8:3::2    |
+# |    tos=inherit          |
+# |                         |
+# |  + $rp1                 |
+# |  | 2001:db8:10::1/64    |
+# +--|----------------------+
+#    |
+# +--|----------------------+
+# |  |                 VRF2 |
+# |  + $rp2                 |
+# |    2001:db8:10::2/64    |
+# +-------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	decap_error_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+vrf2_create()
+{
+	simple_if_init $rp2 2001:db8:10::2/64
+}
+
+vrf2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:10::2/64
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	__addr_add_del $swp1 add 2001:db8:1::2/64
+	tc qdisc add dev $swp1 clsact
+
+	tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		ttl inherit
+	ip link set dev g1 up
+	__addr_add_del g1 add 2001:db8:3::1/128
+
+	ip link set dev $rp1 up
+	__addr_add_del $rp1 add 2001:db8:10::1/64
+}
+
+switch_destroy()
+{
+	__addr_add_del $rp1 del 2001:db8:10::1/64
+	ip link set dev $rp1 down
+
+	__addr_add_del g1 del 2001:db8:3::1/128
+	ip link set dev g1 down
+	tunnel_destroy g1
+
+	tc qdisc del dev $swp1 clsact
+	__addr_add_del $swp1 del 2001:db8:1::2/64
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	switch_create
+	vrf2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrf2_destroy
+	switch_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+ipip_payload_get()
+{
+	local saddr="20:01:0d:b8:00:02:00:00:00:00:00:00:00:00:00:01"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	local flags=$1; shift
+	local key=$1; shift
+
+	p=$(:
+		)"$flags"$(		      : GRE flags
+	        )"0:00:"$(                    : Reserved + version
+		)"86:dd:"$(		      : ETH protocol type
+		)"$key"$( 		      : Key
+		)"6"$(	                      : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(		      : Flow label
+		)"00:00:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(                  : IP daddr
+		)
+	echo $p
+}
+
+ecn_payload_get()
+{
+	echo $(ipip_payload_get "0")
+}
+
+ecn_decap_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local ecn_desc=$1; shift
+	local outer_tos=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip 2001:db8:2::1 dst_ip 2001:db8:1::1 skip_sw \
+		action pass
+
+	rp1_mac=$(mac_get $rp1)
+	rp2_mac=$(mac_get $rp2)
+	payload=$(ecn_payload_get)
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \
+		-A 2001:db8:3::2 -B 2001:db8:3::1 -t ip \
+			tos=$outer_tos,next=47,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+no_matching_tunnel_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local sip=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip 2001:db8:2::1 dst_ip 2001:db8:1::1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	rp2_mac=$(mac_get $rp2)
+	payload=$(ipip_payload_get "$@")
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -a $rp2_mac -b $rp1_mac \
+		-A $sip -B 2001:db8:3::1 -t ip next=47,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+decap_error_test()
+{
+	# Correct source IP - the remote address
+	local sip=2001:db8:3::2
+
+	ecn_decap_test "Decap error" "ECT(1)" 01
+	ecn_decap_test "Decap error" "ECT(0)" 02
+	ecn_decap_test "Decap error" "CE" 03
+
+	no_matching_tunnel_test "Decap error: Source IP check failed" \
+		2001:db8:4::2 "0"
+	no_matching_tunnel_test \
+		"Decap error: Key exists but was not expected" $sip "2" \
+		"00:00:00:E9:"
+
+	# Destroy the tunnel and create new one with key
+	__addr_add_del g1 del 2001:db8:3::1/128
+	tunnel_destroy g1
+
+	tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		ttl inherit key 233
+	__addr_add_del g1 add 2001:db8:3::1/128
+
+	no_matching_tunnel_test \
+		"Decap error: Key does not exist but was expected" $sip "0"
+	no_matching_tunnel_test \
+		"Decap error: Packet has a wrong key field" $sip "2" \
+		"00:00:00:E8:"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
new file mode 100755
index 000000000000..7aca8e5922cf
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan.sh
@@ -0,0 +1,330 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap tunnel drops and exceptions functionality over mlxsw.
+# Check all traps to make sure they are triggered under the right
+# conditions.
+
+# +--------------------+
+# | H1 (vrf)           |
+# |    + $h1           |
+# |    | 192.0.2.1/28  |
+# +----|---------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR1 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vx1 (vxlan)                                                        | |
+# | |    local 192.0.2.17                                                   | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 192.0.2.17/28                                                        |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRF2       |
+# |    + $rp2                                                   |
+# |      192.0.2.18/28                                          |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	decap_error_test
+	overlay_smac_is_mc_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+: ${VXPORT:=4789}
+export VXPORT
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	tc qdisc add dev $swp1 clsact
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link add name vx1 type vxlan id 1000 local 192.0.2.17 \
+		dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx1 master br1
+	ip link set dev vx1 up
+
+	ip address add dev $rp1 192.0.2.17/28
+	ip link set dev $rp1 up
+}
+
+switch_destroy()
+{
+	ip link set dev $rp1 down
+	ip address del dev $rp1 192.0.2.17/28
+
+	ip link set dev vx1 down
+	ip link set dev vx1 nomaster
+	ip link del dev vx1
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrf2_create()
+{
+	simple_if_init $rp2 192.0.2.18/28
+}
+
+vrf2_destroy()
+{
+	simple_if_fini $rp2 192.0.2.18/28
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+	h1_create
+	switch_create
+	vrf2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrf2_destroy
+	switch_destroy
+	h1_destroy
+	forwarding_restore
+	vrf_cleanup
+}
+
+ecn_payload_get()
+{
+	dest_mac=$(mac_get $h1)
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"08:00:"$(                   : ETH type
+		)"45:"$(                      : IP version + IHL
+		)"00:"$(                      : IP TOS
+		)"00:14:"$(                   : IP total length
+		)"00:00:"$(                   : IP identification
+		)"20:00:"$(                   : IP flags + frag off
+		)"40:"$(                      : IP TTL
+		)"00:"$(                      : IP proto
+		)"D6:E5:"$(                   : IP header csum
+		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
+		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
+		)
+	echo $p
+}
+
+ecn_decap_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local ecn_desc=$1; shift
+	local outer_tos=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(ecn_payload_get)
+
+	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac -B 192.0.2.17 \
+		-t udp sp=12345,dp=$VXPORT,tos=$outer_tos,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
+}
+
+reserved_bits_payload_get()
+{
+	dest_mac=$(mac_get $h1)
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"01:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"08:00:"$(                   : ETH type
+		)"45:"$(                      : IP version + IHL
+		)"00:"$(                      : IP TOS
+		)"00:14:"$(                   : IP total length
+		)"00:00:"$(                   : IP identification
+		)"20:00:"$(                   : IP flags + frag off
+		)"40:"$(                      : IP TTL
+		)"00:"$(                      : IP proto
+		)"00:00:"$(                   : IP header csum
+		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
+		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
+		)
+	echo $p
+}
+
+short_payload_get()
+{
+        dest_mac=$(mac_get $h1)
+        p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)
+        echo $p
+}
+
+corrupted_packet_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local payload_get=$1; shift
+	local mz_pid
+
+	RET=0
+
+	# In case of too short packet, there is no any inner packet,
+	# so the matching will always succeed
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower skip_hw src_ip 192.0.2.3 dst_ip 192.0.2.1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$($payload_get)
+	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ip pref 1 handle 101 flower
+}
+
+decap_error_test()
+{
+	ecn_decap_test "Decap error" "ECT(1)" 01
+	ecn_decap_test "Decap error" "ECT(0)" 02
+	ecn_decap_test "Decap error" "CE" 03
+
+	corrupted_packet_test "Decap error: Reserved bits in use" \
+		"reserved_bits_payload_get"
+	corrupted_packet_test "Decap error: Too short inner packet" \
+		"short_payload_get"
+}
+
+mc_smac_payload_get()
+{
+	dest_mac=$(mac_get $h1)
+	source_mac=01:02:03:04:05:06
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"$source_mac:"$(             : ETH saddr
+		)"08:00:"$(                   : ETH type
+		)"45:"$(                      : IP version + IHL
+		)"00:"$(                      : IP TOS
+		)"00:14:"$(                   : IP total length
+		)"00:00:"$(                   : IP identification
+		)"20:00:"$(                   : IP flags + frag off
+		)"40:"$(                      : IP TTL
+		)"00:"$(                      : IP proto
+		)"00:00:"$(                   : IP header csum
+		)"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
+		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
+		)
+	echo $p
+}
+
+overlay_smac_is_mc_test()
+{
+	local trap_name="overlay_smac_is_mc"
+	local mz_pid
+
+	RET=0
+
+	# The matching will be checked on devlink_trap_drop_test()
+	# and the filter will be removed on devlink_trap_drop_cleanup()
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower src_mac 01:02:03:04:05:06 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(mc_smac_payload_get)
+
+	ip vrf exec v$rp2 $MZ $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 192.0.2.17 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp1 101
+
+	log_test "Overlay source MAC is multicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp1 "ip" 1 101
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh
new file mode 100755
index 000000000000..4599c331240b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_trap_tunnel_vxlan_ipv6.sh
@@ -0,0 +1,342 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test devlink-trap tunnel drops and exceptions functionality over mlxsw.
+# Check all traps to make sure they are triggered under the right
+# conditions.
+
+# +------------------------+
+# | H1 (vrf)               |
+# |    + $h1               |
+# |    | 2001:db8:1::1/64  |
+# +----|-------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR1 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vx1 (vxlan)                                                        | |
+# | |    local 2001:db8:3::1                                                | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRF2       |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	decap_error_test
+	overlay_smac_is_mc_test
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+: ${VXPORT:=4789}
+export VXPORT
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	tc qdisc add dev $swp1 clsact
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link add name vx1 type vxlan id 1000 local 2001:db8:3::1 \
+		dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+		tos inherit ttl 100
+	ip link set dev vx1 master br1
+	ip link set dev vx1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 2001:db8:3::1/64
+}
+
+switch_destroy()
+{
+	ip address del dev $rp1 2001:db8:3::1/64
+	ip link set dev $rp1 down
+
+	ip link set dev vx1 down
+	ip link set dev vx1 nomaster
+	ip link del dev vx1
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrf2_create()
+{
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+vrf2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+	h1_create
+	switch_create
+	vrf2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrf2_destroy
+	switch_destroy
+	h1_destroy
+	forwarding_restore
+	vrf_cleanup
+}
+
+ecn_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+ecn_decap_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local ecn_desc=$1; shift
+	local outer_tos=$1; shift
+	local mz_pid
+
+	RET=0
+
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip 2001:db8:1::3 dst_ip 2001:db8:1::1 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(ecn_payload_get)
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp \
+		sp=12345,dp=$VXPORT,tos=$outer_tos,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc: Inner ECN is not ECT and outer is $ecn_desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+reserved_bits_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"01:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+short_payload_get()
+{
+        dest_mac=$(mac_get $h1)
+        p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"00:00:00:00:00:00:"$(       : ETH saddr
+		)
+        echo $p
+}
+
+corrupted_packet_test()
+{
+	local trap_name="decap_error"
+	local desc=$1; shift
+	local payload_get=$1; shift
+	local mz_pid
+
+	RET=0
+
+	# In case of too short packet, there is no any inner packet,
+	# so the matching will always succeed
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower skip_hw src_ip 2001:db8:3::1 dst_ip 2001:db8:1::1 \
+		action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$($payload_get)
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_exception_test $trap_name
+
+	tc_check_packets "dev $swp1 egress" 101 0
+	check_err $? "Packets were not dropped"
+
+	log_test "$desc"
+
+	kill_process $mz_pid
+	tc filter del dev $swp1 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+decap_error_test()
+{
+	ecn_decap_test "Decap error" "ECT(1)" 01
+	ecn_decap_test "Decap error" "ECT(0)" 02
+	ecn_decap_test "Decap error" "CE" 03
+
+	corrupted_packet_test "Decap error: Reserved bits in use" \
+		"reserved_bits_payload_get"
+	corrupted_packet_test "Decap error: Too short inner packet" \
+		"short_payload_get"
+}
+
+mc_smac_payload_get()
+{
+	local dest_mac=$(mac_get $h1)
+	local source_mac="01:02:03:04:05:06"
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"00:03:e8:"$(                : VXLAN VNI : 1000
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"$source_mac:"$(	      : ETH saddr
+		)"86:dd:"$(                   : ETH type
+		)"6"$(                        : IP version
+		)"0:0"$(		      : Traffic class
+		)"0:00:00:"$(                 : Flow label
+		)"00:08:"$(                   : Payload length
+		)"3a:"$(                      : Next header
+		)"04:"$(                      : Hop limit
+		)"$saddr:"$(                  : IP saddr
+		)"$daddr:"$(		      : IP daddr
+		)"80:"$(                      : ICMPv6.type
+		)"00:"$(                      : ICMPv6.code
+		)"00:"$(                      : ICMPv6.checksum
+		)
+	echo $p
+}
+
+overlay_smac_is_mc_test()
+{
+	local trap_name="overlay_smac_is_mc"
+	local mz_pid
+
+	RET=0
+
+	# The matching will be checked on devlink_trap_drop_test()
+	# and the filter will be removed on devlink_trap_drop_cleanup()
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_mac 01:02:03:04:05:06 action pass
+
+	rp1_mac=$(mac_get $rp1)
+	payload=$(mc_smac_payload_get)
+
+	ip vrf exec v$rp2 $MZ -6 $rp2 -c 0 -d 1msec -b $rp1_mac \
+		-B 2001:db8:3::1 -t udp sp=12345,dp=$VXPORT,p=$payload -q &
+	mz_pid=$!
+
+	devlink_trap_drop_test $trap_name $swp1 101
+
+	log_test "Overlay source MAC is multicast"
+
+	devlink_trap_drop_cleanup $mz_pid $swp1 "ipv6" 1 101
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/egress_vid_classification.sh b/tools/testing/selftests/drivers/net/mlxsw/egress_vid_classification.sh
new file mode 100755
index 000000000000..a5c2aec52898
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/egress_vid_classification.sh
@@ -0,0 +1,272 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test VLAN classification after routing and verify that the order of
+# configuration does not impact switch behavior. Verify that {RIF, Port}->VID
+# mapping is added correctly for existing {Port, VID}->FID mapping and that
+# {RIF, Port}->VID mapping is added correctly for new {Port, VID}->FID mapping.
+
+# +-------------------+                   +--------------------+
+# | H1                |                   | H2                 |
+# |                   |                   |                    |
+# |         $h1.10 +  |                   |  + $h2.10          |
+# |   192.0.2.1/28 |  |                   |  | 192.0.2.3/28    |
+# |                |  |                   |  |                 |
+# |            $h1 +  |                   |  + $h2             |
+# +----------------|--+                   +--|-----------------+
+#                  |                         |
+# +----------------|-------------------------|-----------------+
+# | SW       $swp1 +                         + $swp2           |
+# |                |                         |                 |
+# | +--------------|-------------------------|---------------+ |
+# | |     $swp1.10 +                         + $swp2.10      | |
+# | |                                                        | |
+# | |                           br0                          | |
+# | |                       192.0.2.2/28                     | |
+# | +--------------------------------------------------------+ |
+# |                                                            |
+# |      $swp3.20 +                                            |
+# | 192.0.2.17/28 |                                            |
+# |               |                                            |
+# |         $swp3 +                                            |
+# +---------------|--------------------------------------------+
+#                 |
+# +---------------|--+
+# |           $h3 +  |
+# |               |  |
+# |        $h3.20 +  |
+# | 192.0.2.18/28    |
+# |                  |
+# | H3               |
+# +------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	port_vid_map_rif
+	rif_port_vid_map
+"
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+
+	ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 10 v$h2 192.0.2.3/28
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 10
+	simple_if_fini $h2
+}
+
+h3_create()
+{
+	simple_if_init $h3
+	vlan_create $h3 20 v$h3 192.0.2.18/28
+
+	ip route add 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+}
+
+h3_destroy()
+{
+	ip route del 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+
+	vlan_destroy $h3 20
+	simple_if_fini $h3
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	# By default, a link-local address is generated when netdevice becomes
+	# up. Adding an address to the bridge will cause creating a RIF for it.
+	# Prevent generating link-local address to be able to control when the
+	# RIF is added.
+	sysctl_set net.ipv6.conf.br0.addr_gen_mode 1
+	ip link set dev br0 up
+
+	ip link set dev $swp2 up
+	vlan_create $swp2 10
+	ip link set dev $swp2.10 master br0
+
+	ip link set dev $swp3 up
+	vlan_create $swp3 20 "" 192.0.2.17/28
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev $swp3.20 192.0.2.18 lladdr $(mac_get $h3.20)
+}
+
+switch_destroy()
+{
+	vlan_destroy $swp3 20
+	ip link set dev $swp3 down
+
+	ip link set dev $swp2.10 nomaster
+	vlan_destroy $swp2 10
+	ip link set dev $swp2 down
+
+	ip link set dev br0 down
+	sysctl_restore net.ipv6.conf.br0.addr_gen_mode
+	ip link del dev br0
+
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+bridge_rif_add()
+{
+	rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	__addr_add_del br0 add 192.0.2.2/28
+	rifs_occ_t1=$(devlink_resource_occ_get rifs)
+
+	expected_rifs=$((rifs_occ_t0 + 1))
+
+	[[ $expected_rifs -eq $rifs_occ_t1 ]]
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	sleep 1
+}
+
+bridge_rif_del()
+{
+	__addr_add_del br0 del 192.0.2.2/28
+}
+
+port_vid_map_rif()
+{
+	RET=0
+
+	# First add {port, VID}->FID for swp1.10, then add a RIF and verify that
+	# packets get the correct VID after routing.
+	vlan_create $swp1 10
+	ip link set dev $swp1.10 master br0
+	bridge_rif_add
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev br0 192.0.2.1 lladdr $(mac_get $h1.10)
+
+	# The hardware matches on the first ethertype which is not VLAN,
+	# so the protocol should be IP.
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.1 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add RIF for existing {port, VID}->FID mapping"
+
+	tc filter del dev $swp1 egress
+
+	bridge_rif_del
+	ip link set dev $swp1.10 nomaster
+	vlan_destroy $swp1 10
+}
+
+rif_port_vid_map()
+{
+	RET=0
+
+	# First add an address to the bridge, which will create a RIF on top of
+	# it, then add a new {port, VID}->FID mapping and verify that packets
+	# get the correct VID after routing.
+	bridge_rif_add
+	vlan_create $swp1 10
+	ip link set dev $swp1.10 master br0
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev br0 192.0.2.1 lladdr $(mac_get $h1.10)
+
+	# The hardware matches on the first ethertype which is not VLAN,
+	# so the protocol should be IP.
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.1 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add {port, VID}->FID mapping for FID with a RIF"
+
+	tc filter del dev $swp1 egress
+
+	ip link set dev $swp1.10 nomaster
+	vlan_destroy $swp1 10
+	bridge_rif_del
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh b/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh
new file mode 100755
index 000000000000..fe905a7f34b3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/ethtool_lanes.sh
@@ -0,0 +1,190 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+ethtool_lib_dir=$(dirname $0)/../hw
+
+ALL_TESTS="
+	autoneg
+	autoneg_force_mode
+"
+
+NUM_NETIFS=2
+: ${TIMEOUT:=30000} # ms
+source $lib_dir/lib.sh
+source $ethtool_lib_dir/ethtool_lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	busywait "$TIMEOUT" wait_for_port_up ethtool $swp2
+	check_err $? "ports did not come up"
+
+	busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:"
+	if [[ $? -ne 0 ]]; then
+		log_test "SKIP: driver does not support lanes setting"
+		exit 1
+	fi
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+check_lanes()
+{
+	local dev=$1; shift
+	local lanes=$1; shift
+	local max_speed=$1; shift
+	local chosen_lanes
+
+	chosen_lanes=$(ethtool $dev | grep 'Lanes:')
+	chosen_lanes=${chosen_lanes#*"Lanes: "}
+
+	((chosen_lanes == lanes))
+	check_err $? "swp1 advertise $max_speed and $lanes, devs sync to $chosen_lanes"
+}
+
+check_unsupported_lanes()
+{
+	local dev=$1; shift
+	local max_speed=$1; shift
+	local max_lanes=$1; shift
+	local autoneg=$1; shift
+	local autoneg_str=""
+
+	local unsupported_lanes=$((max_lanes *= 2))
+
+	if [[ $autoneg -eq 0 ]]; then
+		autoneg_str="autoneg off"
+	fi
+
+	ethtool -s $swp1 speed $max_speed lanes $unsupported_lanes $autoneg_str &> /dev/null
+	check_fail $? "Unsuccessful $unsupported_lanes lanes setting was expected"
+}
+
+max_speed_and_lanes_get()
+{
+	local dev=$1; shift
+	local arr=("$@")
+	local max_lanes
+	local max_speed
+	local -a lanes_arr
+	local -a speeds_arr
+	local -a max_values
+
+	for ((i=0; i<${#arr[@]}; i+=2)); do
+		speeds_arr+=("${arr[$i]}")
+		lanes_arr+=("${arr[i+1]}")
+	done
+
+	max_values+=($(get_max "${speeds_arr[@]}"))
+	max_values+=($(get_max "${lanes_arr[@]}"))
+
+	echo ${max_values[@]}
+}
+
+search_linkmode()
+{
+	local speed=$1; shift
+	local lanes=$1; shift
+	local arr=("$@")
+
+	for ((i=0; i<${#arr[@]}; i+=2)); do
+		if [[ $speed -eq ${arr[$i]} && $lanes -eq ${arr[i+1]} ]]; then
+			return 1
+		fi
+	done
+	return 0
+}
+
+autoneg()
+{
+	RET=0
+
+	local lanes
+	local max_speed
+	local max_lanes
+
+	local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1))
+	local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}"))
+	max_speed=${max_values[0]}
+	max_lanes=${max_values[1]}
+
+	lanes=$max_lanes
+
+	while [[ $lanes -ge 1 ]]; do
+		search_linkmode $max_speed $lanes "${linkmodes_params[@]}"
+		if [[ $? -eq 1 ]]; then
+			ethtool_set $swp1 speed $max_speed lanes $lanes
+			ip link set dev $swp1 up
+			ip link set dev $swp2 up
+
+			busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:"
+			check_err $? "Lanes parameter is not presented on time"
+
+			check_lanes $swp1 $lanes $max_speed
+			log_test "$lanes lanes is autonegotiated"
+		fi
+		let $((lanes /= 2))
+	done
+
+	check_unsupported_lanes $swp1 $max_speed $max_lanes 1
+	log_test "Lanes number larger than max width is not set"
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+autoneg_force_mode()
+{
+	RET=0
+
+	local lanes
+	local max_speed
+	local max_lanes
+
+	local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1))
+	local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}"))
+	max_speed=${max_values[0]}
+	max_lanes=${max_values[1]}
+
+	lanes=$max_lanes
+
+	while [[ $lanes -ge 1 ]]; do
+		search_linkmode $max_speed $lanes "${linkmodes_params[@]}"
+		if [[ $? -eq 1 ]]; then
+			ethtool_set $swp1 speed $max_speed lanes $lanes autoneg off
+			ethtool_set $swp2 speed $max_speed lanes $lanes autoneg off
+			ip link set dev $swp1 up
+			ip link set dev $swp2 up
+
+			busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:"
+			check_err $? "Lanes parameter is not presented on time"
+
+			check_lanes $swp1 $lanes $max_speed
+			log_test "Autoneg off, $lanes lanes detected during force mode"
+		fi
+		let $((lanes /= 2))
+	done
+
+	check_unsupported_lanes $swp1 $max_speed $max_lanes 0
+	log_test "Lanes number larger than max width is not set"
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ethtool -s $swp2 autoneg on
+	ethtool -s $swp1 autoneg on
+}
+
+check_ethtool_lanes_support
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/extack.sh b/tools/testing/selftests/drivers/net/mlxsw/extack.sh
new file mode 100755
index 000000000000..6fd422d38fe8
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/extack.sh
@@ -0,0 +1,182 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test operations that we expect to report extended ack.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	netdev_pre_up_test
+	vxlan_vlan_add_test
+	vxlan_bridge_create_test
+	bridge_create_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+netdev_pre_up_test()
+{
+	RET=0
+
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link add name vx1 up type vxlan id 1000 \
+		local 192.0.2.17 remote 192.0.2.18 \
+		dstport 4789 nolearning noudpcsum tos inherit ttl 100
+
+	ip link set dev vx1 master br1
+	check_err $?
+
+	ip link set dev $swp1 master br1
+	check_err $?
+
+	ip link add name br2 type bridge vlan_filtering 0 mcast_snooping 0
+	ip link set dev br2 addrgenmode none
+	ip link set dev br2 up
+	ip link add name vx2 up type vxlan id 2000 \
+		local 192.0.2.17 remote 192.0.2.18 \
+		dstport 4789 nolearning noudpcsum tos inherit ttl 100
+
+	ip link set dev vx2 master br2
+	check_err $?
+
+	ip link set dev $swp2 master br2
+	check_err $?
+
+	# Unsupported configuration: mlxsw demands that all offloaded VXLAN
+	# devices have the same TTL.
+	ip link set dev vx2 down
+	ip link set dev vx2 type vxlan ttl 200
+
+	ip link set dev vx2 up &>/dev/null
+	check_fail $?
+
+	ip link set dev vx2 up 2>&1 >/dev/null | grep -q mlxsw_spectrum
+	check_err $?
+
+	log_test "extack - NETDEV_PRE_UP"
+
+	ip link del dev vx2
+	ip link del dev br2
+
+	ip link del dev vx1
+	ip link del dev br1
+}
+
+vxlan_vlan_add_test()
+{
+	RET=0
+
+	ip link add name br1 type bridge vlan_filtering 1 mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	# Unsupported configuration: mlxsw demands VXLAN with "noudpcsum".
+	ip link add name vx1 up type vxlan id 1000 \
+		local 192.0.2.17 remote 192.0.2.18 \
+		dstport 4789 tos inherit ttl 100
+
+	ip link set dev vx1 master br1
+	check_err $?
+
+	bridge vlan add dev vx1 vid 1
+	check_err $?
+
+	ip link set dev $swp1 master br1
+	check_err $?
+
+	bridge vlan add dev vx1 vid 1 pvid untagged 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $?
+
+	log_test "extack - map VLAN at VXLAN device"
+
+	ip link del dev vx1
+	ip link del dev br1
+}
+
+vxlan_bridge_create_test()
+{
+	RET=0
+
+	# Unsupported configuration: mlxsw demands VXLAN with "noudpcsum".
+	ip link add name vx1 up type vxlan id 1000 \
+		local 192.0.2.17 remote 192.0.2.18 \
+		dstport 4789 tos inherit ttl 100
+
+	# Test with VLAN-aware bridge.
+	ip link add name br1 type bridge vlan_filtering 1 mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev vx1 master br1
+
+	ip link set dev $swp1 master br1 2>&1 > /dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $?
+
+	# Test with VLAN-unaware bridge.
+	ip link set dev br1 type bridge vlan_filtering 0
+
+	ip link set dev $swp1 master br1 2>&1 > /dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $?
+
+	log_test "extack - bridge creation with VXLAN"
+
+	ip link del dev br1
+	ip link del dev vx1
+}
+
+bridge_create_test()
+{
+	RET=0
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link add name br2 type bridge vlan_filtering 1
+	ip link set dev br2 addrgenmode none
+	ip link set dev br2 up
+
+	ip link set dev $swp1 master br1
+	check_err $?
+
+	# Only one VLAN-aware bridge is supported, so this should fail with
+	# an extack.
+	ip link set dev $swp2 master br2 2>&1 > /dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $?
+
+	log_test "extack - multiple VLAN-aware bridges creation"
+
+	ip link del dev br2
+	ip link del dev br1
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/fib.sh b/tools/testing/selftests/drivers/net/mlxsw/fib.sh
new file mode 100755
index 000000000000..dcbf32b99bb6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/fib.sh
@@ -0,0 +1,270 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking the FIB offload API on top of mlxsw.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ipv4_identical_routes
+	ipv4_tos
+	ipv4_metric
+	ipv4_replace
+	ipv4_delete
+	ipv4_plen
+	ipv4_replay
+	ipv4_flush
+	ipv4_local_replace
+	ipv6_add
+	ipv6_metric
+	ipv6_append_single
+	ipv6_replace_single
+	ipv6_metric_multipath
+	ipv6_append_multipath
+	ipv6_replace_multipath
+	ipv6_append_multipath_to_single
+	ipv6_delete_single
+	ipv6_delete_multipath
+	ipv6_replay_single
+	ipv6_replay_multipath
+	ipv6_local_replace
+"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source $lib_dir/fib_offload_lib.sh
+
+ipv4_identical_routes()
+{
+	fib_ipv4_identical_routes_test "testns1"
+}
+
+ipv4_tos()
+{
+	fib_ipv4_tos_test "testns1"
+}
+
+ipv4_metric()
+{
+	fib_ipv4_metric_test "testns1"
+}
+
+ipv4_replace()
+{
+	fib_ipv4_replace_test "testns1"
+}
+
+ipv4_delete()
+{
+	fib_ipv4_delete_test "testns1"
+}
+
+ipv4_plen()
+{
+	fib_ipv4_plen_test "testns1"
+}
+
+ipv4_replay_metric()
+{
+	fib_ipv4_replay_metric_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_tos()
+{
+	fib_ipv4_replay_tos_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_plen()
+{
+	fib_ipv4_replay_plen_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay()
+{
+	ipv4_replay_metric
+	ipv4_replay_tos
+	ipv4_replay_plen
+}
+
+ipv4_flush()
+{
+	fib_ipv4_flush_test "testns1"
+}
+
+ipv4_local_replace()
+{
+	local ns="testns1"
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add table local 192.0.2.1/32 dev dummy1
+	fib4_trap_check $ns "table local 192.0.2.1/32 dev dummy1" false
+	check_err $? "Local table route not in hardware when should"
+
+	ip -n $ns route add table main 192.0.2.1/32 dev dummy1
+	fib4_trap_check $ns "table main 192.0.2.1/32 dev dummy1" true
+	check_err $? "Main table route in hardware when should not"
+
+	fib4_trap_check $ns "table local 192.0.2.1/32 dev dummy1" false
+	check_err $? "Local table route was replaced when should not"
+
+	# Test that local routes can replace routes in main table.
+	ip -n $ns route add table main 192.0.2.2/32 dev dummy1
+	fib4_trap_check $ns "table main 192.0.2.2/32 dev dummy1" false
+	check_err $? "Main table route not in hardware when should"
+
+	ip -n $ns route add table local 192.0.2.2/32 dev dummy1
+	fib4_trap_check $ns "table local 192.0.2.2/32 dev dummy1" false
+	check_err $? "Local table route did not replace route in main table when should"
+
+	fib4_trap_check $ns "table main 192.0.2.2/32 dev dummy1" true
+	check_err $? "Main table route was not replaced when should"
+
+	log_test "IPv4 local table route replacement"
+
+	ip -n $ns link del dev dummy1
+}
+
+ipv6_add()
+{
+	fib_ipv6_add_test "testns1"
+}
+
+ipv6_metric()
+{
+	fib_ipv6_metric_test "testns1"
+}
+
+ipv6_append_single()
+{
+	fib_ipv6_append_single_test "testns1"
+}
+
+ipv6_replace_single()
+{
+	fib_ipv6_replace_single_test "testns1"
+}
+
+ipv6_metric_multipath()
+{
+	fib_ipv6_metric_multipath_test "testns1"
+}
+
+ipv6_append_multipath()
+{
+	fib_ipv6_append_multipath_test "testns1"
+}
+
+ipv6_replace_multipath()
+{
+	fib_ipv6_replace_multipath_test "testns1"
+}
+
+ipv6_append_multipath_to_single()
+{
+	fib_ipv6_append_multipath_to_single_test "testns1"
+}
+
+ipv6_delete_single()
+{
+	fib_ipv6_delete_single_test "testns1"
+}
+
+ipv6_delete_multipath()
+{
+	fib_ipv6_delete_multipath_test "testns1"
+}
+
+ipv6_replay_single()
+{
+	fib_ipv6_replay_single_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_replay_multipath()
+{
+	fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_local_replace()
+{
+	local ns="testns1"
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add table local 2001:db8:1::1/128 dev dummy1
+	fib6_trap_check $ns "table local 2001:db8:1::1/128 dev dummy1" false
+	check_err $? "Local table route not in hardware when should"
+
+	ip -n $ns route add table main 2001:db8:1::1/128 dev dummy1
+	fib6_trap_check $ns "table main 2001:db8:1::1/128 dev dummy1" true
+	check_err $? "Main table route in hardware when should not"
+
+	fib6_trap_check $ns "table local 2001:db8:1::1/128 dev dummy1" false
+	check_err $? "Local table route was replaced when should not"
+
+	# Test that local routes can replace routes in main table.
+	ip -n $ns route add table main 2001:db8:1::2/128 dev dummy1
+	fib6_trap_check $ns "table main 2001:db8:1::2/128 dev dummy1" false
+	check_err $? "Main table route not in hardware when should"
+
+	ip -n $ns route add table local 2001:db8:1::2/128 dev dummy1
+	fib6_trap_check $ns "table local 2001:db8:1::2/128 dev dummy1" false
+	check_err $? "Local route route did not replace route in main table when should"
+
+	fib6_trap_check $ns "table main 2001:db8:1::2/128 dev dummy1" true
+	check_err $? "Main table route was not replaced when should"
+
+	log_test "IPv6 local table route replacement"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_notify_on_flag_change_set()
+{
+	local notify=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.ipv4.fib_notify_on_flag_change=$notify
+	ip netns exec testns1 sysctl -qw net.ipv6.fib_notify_on_flag_change=$notify
+
+	log_info "Set fib_notify_on_flag_change to $notify"
+}
+
+setup_prepare()
+{
+	ip netns add testns1
+	if [ $? -ne 0 ]; then
+		echo "Failed to add netns \"testns1\""
+		exit 1
+	fi
+
+	devlink dev reload $DEVLINK_DEV netns testns1
+	if [ $? -ne 0 ]; then
+		echo "Failed to reload into netns \"testns1\""
+		exit 1
+	fi
+}
+
+cleanup()
+{
+	pre_cleanup
+	devlink -N testns1 dev reload $DEVLINK_DEV netns $$
+	ip netns del testns1
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+fib_notify_on_flag_change_set 1
+tests_run
+
+fib_notify_on_flag_change_set 0
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/fib_offload.sh b/tools/testing/selftests/drivers/net/mlxsw/fib_offload.sh
new file mode 100755
index 000000000000..e99ae500f387
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/fib_offload.sh
@@ -0,0 +1,349 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test unicast FIB offload indication.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ipv6_route_add
+	ipv6_route_replace
+	ipv6_route_nexthop_group_share
+	ipv6_route_rate
+"
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+tor1_create()
+{
+	simple_if_init $tor1_p1 2001:db8:1::2/128 2001:db8:1::3/128
+}
+
+tor1_destroy()
+{
+	simple_if_fini $tor1_p1 2001:db8:1::2/128 2001:db8:1::3/128
+}
+
+tor2_create()
+{
+	simple_if_init $tor2_p1 2001:db8:2::2/128 2001:db8:2::3/128
+}
+
+tor2_destroy()
+{
+	simple_if_fini $tor2_p1 2001:db8:2::2/128 2001:db8:2::3/128
+}
+
+spine_create()
+{
+	ip link set dev $spine_p1 up
+	ip link set dev $spine_p2 up
+
+	__addr_add_del $spine_p1 add 2001:db8:1::1/64
+	__addr_add_del $spine_p2 add 2001:db8:2::1/64
+}
+
+spine_destroy()
+{
+	__addr_add_del $spine_p2 del 2001:db8:2::1/64
+	__addr_add_del $spine_p1 del 2001:db8:1::1/64
+
+	ip link set dev $spine_p2 down
+	ip link set dev $spine_p1 down
+}
+
+ipv6_offload_check()
+{
+	local pfx="$1"; shift
+	local expected_num=$1; shift
+	local num
+
+	# Try to avoid races with route offload
+	sleep .1
+
+	num=$(ip -6 route show match ${pfx} | grep "offload" | wc -l)
+
+	if [ $num -eq $expected_num ]; then
+		return 0
+	fi
+
+	return 1
+}
+
+ipv6_route_add_prefix()
+{
+	RET=0
+
+	# Add a prefix route and check that it is offloaded.
+	ip -6 route add 2001:db8:3::/64 dev $spine_p1 metric 100
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 1
+	check_err $? "prefix route not offloaded"
+
+	# Append an identical prefix route with an higher metric and check that
+	# offload indication did not change.
+	ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 200
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 1
+	check_err $? "lowest metric not offloaded after append"
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 200" 0
+	check_err $? "highest metric offloaded when should not"
+
+	# Prepend an identical prefix route with lower metric and check that
+	# it is offloaded and the others are not.
+	ip -6 route append 2001:db8:3::/64 dev $spine_p1 metric 10
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 10" 1
+	check_err $? "lowest metric not offloaded after prepend"
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 100" 0
+	check_err $? "mid metric offloaded when should not"
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p1 metric 200" 0
+	check_err $? "highest metric offloaded when should not"
+
+	# Delete the routes and add the same route with a different nexthop
+	# device. Check that it is offloaded.
+	ip -6 route flush 2001:db8:3::/64 dev $spine_p1
+	ip -6 route add 2001:db8:3::/64 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 dev $spine_p2" 1
+
+	log_test "IPv6 prefix route add"
+
+	ip -6 route flush 2001:db8:3::/64
+}
+
+ipv6_route_add_mpath()
+{
+	RET=0
+
+	# Add a multipath route and check that it is offloaded.
+	ip -6 route add 2001:db8:3::/64 metric 100 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded when should"
+
+	# Append another nexthop and check that it is offloaded as well.
+	ip -6 route append 2001:db8:3::/64 metric 100 \
+		nexthop via 2001:db8:1::3 dev $spine_p1
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 3
+	check_err $? "appended nexthop not offloaded when should"
+
+	# Mimic route replace by removing the route and adding it back with
+	# only two nexthops.
+	ip -6 route del 2001:db8:3::/64
+	ip -6 route add 2001:db8:3::/64 metric 100 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded after delete & add"
+
+	# Append a nexthop with an higher metric and check that the offload
+	# indication did not change.
+	ip -6 route append 2001:db8:3::/64 metric 200 \
+		nexthop via 2001:db8:1::3 dev $spine_p1
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "lowest metric not offloaded after append"
+	ipv6_offload_check "2001:db8:3::/64 metric 200" 0
+	check_err $? "highest metric offloaded when should not"
+
+	# Prepend a nexthop with a lower metric and check that it is offloaded
+	# and the others are not.
+	ip -6 route append 2001:db8:3::/64 metric 10 \
+		nexthop via 2001:db8:1::3 dev $spine_p1
+	ipv6_offload_check "2001:db8:3::/64 metric 10" 1
+	check_err $? "lowest metric not offloaded after prepend"
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 0
+	check_err $? "mid metric offloaded when should not"
+	ipv6_offload_check "2001:db8:3::/64 metric 200" 0
+	check_err $? "highest metric offloaded when should not"
+
+	log_test "IPv6 multipath route add"
+
+	ip -6 route flush 2001:db8:3::/64
+}
+
+ipv6_route_add()
+{
+	ipv6_route_add_prefix
+	ipv6_route_add_mpath
+}
+
+ipv6_route_replace()
+{
+	RET=0
+
+	# Replace prefix route with prefix route.
+	ip -6 route add 2001:db8:3::/64 metric 100 dev $spine_p1
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 1
+	check_err $? "prefix route not offloaded when should"
+	ip -6 route replace 2001:db8:3::/64 metric 100 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 1
+	check_err $? "prefix route not offloaded after replace"
+
+	# Replace prefix route with multipath route.
+	ip -6 route replace 2001:db8:3::/64 metric 100 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded after replace"
+
+	# Replace multipath route with prefix route. A prefix route cannot
+	# replace a multipath route, so it is appended.
+	ip -6 route replace 2001:db8:3::/64 metric 100 dev $spine_p1
+	ipv6_offload_check "2001:db8:3::/64 metric 100 dev $spine_p1" 0
+	check_err $? "prefix route offloaded after 'replacing' multipath route"
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded after being 'replaced' by prefix route"
+
+	# Replace multipath route with multipath route.
+	ip -6 route replace 2001:db8:3::/64 metric 100 \
+		nexthop via 2001:db8:1::3 dev $spine_p1 \
+		nexthop via 2001:db8:2::3 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded after replacing multipath route"
+
+	# Replace a non-existing multipath route with a multipath route and
+	# check that it is appended and not offloaded.
+	ip -6 route replace 2001:db8:3::/64 metric 200 \
+		nexthop via 2001:db8:1::3 dev $spine_p1 \
+		nexthop via 2001:db8:2::3 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64 metric 100" 2
+	check_err $? "multipath route not offloaded after non-existing route was 'replaced'"
+	ipv6_offload_check "2001:db8:3::/64 metric 200" 0
+	check_err $? "multipath route offloaded after 'replacing' non-existing route"
+
+	log_test "IPv6 route replace"
+
+	ip -6 route flush 2001:db8:3::/64
+}
+
+ipv6_route_nexthop_group_share()
+{
+	RET=0
+
+	# The driver consolidates identical nexthop groups in order to reduce
+	# the resource usage in its adjacency table. Check that the deletion
+	# of one multipath route using the group does not affect the other.
+	ip -6 route add 2001:db8:3::/64 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ip -6 route add 2001:db8:4::/64 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ipv6_offload_check "2001:db8:3::/64" 2
+	check_err $? "multipath route not offloaded when should"
+	ipv6_offload_check "2001:db8:4::/64" 2
+	check_err $? "multipath route not offloaded when should"
+	ip -6 route del 2001:db8:3::/64
+	ipv6_offload_check "2001:db8:4::/64" 2
+	check_err $? "multipath route not offloaded after deletion of route sharing the nexthop group"
+
+	# Check that after unsharing a nexthop group the routes are still
+	# marked as offloaded.
+	ip -6 route add 2001:db8:3::/64 \
+		nexthop via 2001:db8:1::2 dev $spine_p1 \
+		nexthop via 2001:db8:2::2 dev $spine_p2
+	ip -6 route del 2001:db8:4::/64 \
+		nexthop via 2001:db8:1::2 dev $spine_p1
+	ipv6_offload_check "2001:db8:4::/64" 1
+	check_err $? "singlepath route not offloaded after unsharing the nexthop group"
+	ipv6_offload_check "2001:db8:3::/64" 2
+	check_err $? "multipath route not offloaded after unsharing the nexthop group"
+
+	log_test "IPv6 nexthop group sharing"
+
+	ip -6 route flush 2001:db8:3::/64
+	ip -6 route flush 2001:db8:4::/64
+}
+
+ipv6_route_rate()
+{
+	local batch_dir=$(mktemp -d)
+	local num_rts=$((40 * 1024))
+	local num_nhs=16
+	local total
+	local start
+	local diff
+	local end
+	local nhs
+	local i
+
+	RET=0
+
+	# Prepare 40K /64 multipath routes with 16 nexthops each and check how
+	# long it takes to add them. A limit of 60 seconds is set. It is much
+	# higher than insertion should take and meant to flag a serious
+	# regression.
+	total=$((nums_nhs * num_rts))
+
+	for i in $(seq 1 $num_nhs); do
+		ip -6 address add 2001:db8:1::10:$i/128 dev $tor1_p1
+		nexthops+=" nexthop via 2001:db8:1::10:$i dev $spine_p1"
+	done
+
+	for i in $(seq 1 $num_rts); do
+		echo "route add 2001:db8:8:$(printf "%x" $i)::/64$nexthops" \
+			>> $batch_dir/add.batch
+		echo "route del 2001:db8:8:$(printf "%x" $i)::/64$nexthops" \
+			>> $batch_dir/del.batch
+	done
+
+	start=$(date +%s.%N)
+
+	ip -batch $batch_dir/add.batch
+	count=$(ip -6 route show | grep offload | wc -l)
+	while [ $count -lt $total ]; do
+		sleep .01
+		count=$(ip -6 route show | grep offload | wc -l)
+	done
+
+	end=$(date +%s.%N)
+
+	diff=$(echo "$end - $start" | bc -l)
+	test "$(echo "$diff > 60" | bc -l)" -eq 0
+	check_err $? "route insertion took too long"
+	log_info "inserted $num_rts routes in $diff seconds"
+
+	log_test "IPv6 routes insertion rate"
+
+	ip -batch $batch_dir/del.batch
+	for i in $(seq 1 $num_nhs); do
+		ip -6 address del 2001:db8:1::10:$i/128 dev $tor1_p1
+	done
+	rm -rf $batch_dir
+}
+
+setup_prepare()
+{
+	spine_p1=${NETIFS[p1]}
+	tor1_p1=${NETIFS[p2]}
+
+	spine_p2=${NETIFS[p3]}
+	tor2_p1=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	tor1_create
+	tor2_create
+	spine_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	spine_destroy
+	tor2_destroy
+	tor1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/hw_stats_l3.sh b/tools/testing/selftests/drivers/net/mlxsw/hw_stats_l3.sh
new file mode 100755
index 000000000000..941ba4c485c9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/hw_stats_l3.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	l3_monitor_test
+"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+swp=$NETIF_NO_CABLE
+
+cleanup()
+{
+	pre_cleanup
+}
+
+l3_monitor_test()
+{
+	hw_stats_monitor_test $swp l3		    \
+		"ip addr add dev $swp 192.0.2.1/28" \
+		"ip addr del dev $swp 192.0.2.1/28"
+}
+
+trap cleanup EXIT
+
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1d.sh b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1d.sh
new file mode 100755
index 000000000000..7d7f862c809c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1d.sh
@@ -0,0 +1,263 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test routing over bridge and verify that the order of configuration does not
+# impact switch behavior. Verify that RIF is added correctly for existing
+# mappings and that new mappings use the correct RIF.
+
+# +-------------------+                   +--------------------+
+# | H1                |                   | H2                 |
+# |                   |                   |                    |
+# |         $h1.10 +  |                   |  + $h2.10          |
+# |   192.0.2.1/28 |  |                   |  | 192.0.2.3/28    |
+# |                |  |                   |  |                 |
+# |            $h1 +  |                   |  + $h2             |
+# +----------------|--+                   +--|-----------------+
+#                  |                         |
+# +----------------|-------------------------|-----------------+
+# | SW       $swp1 +                         + $swp2           |
+# |                |                         |                 |
+# | +--------------|-------------------------|---------------+ |
+# | |     $swp1.10 +                         + $swp2.10      | |
+# | |                                                        | |
+# | |                           br0                          | |
+# | |                       192.0.2.2/28                     | |
+# | +--------------------------------------------------------+ |
+# |                                                            |
+# |      $swp3.10 +                                            |
+# | 192.0.2.17/28 |                                            |
+# |               |                                            |
+# |         $swp3 +                                            |
+# +---------------|--------------------------------------------+
+#                 |
+# +---------------|--+
+# |           $h3 +  |
+# |               |  |
+# |        $h3.10 +  |
+# | 192.0.2.18/28    |
+# |                  |
+# | H3               |
+# +------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	port_vid_map_rif
+	rif_port_vid_map
+"
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+
+	ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 10 v$h2 192.0.2.3/28
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 10
+	simple_if_fini $h2
+}
+
+h3_create()
+{
+	simple_if_init $h3
+	vlan_create $h3 10 v$h3 192.0.2.18/28
+
+	ip route add 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+}
+
+h3_destroy()
+{
+	ip route del 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+
+	vlan_destroy $h3 10
+	simple_if_fini $h3
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	# By default, a link-local address is generated when netdevice becomes
+	# up. Adding an address to the bridge will cause creating a RIF for it.
+	# Prevent generating link-local address to be able to control when the
+	# RIF is added.
+	sysctl_set net.ipv6.conf.br0.addr_gen_mode 1
+	ip link set dev br0 up
+
+	ip link set dev $swp2 up
+	vlan_create $swp2 10
+	ip link set dev $swp2.10 master br0
+
+	ip link set dev $swp3 up
+	vlan_create $swp3 10 "" 192.0.2.17/28
+	tc qdisc add dev $swp3 clsact
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev $swp3.10 192.0.2.18 lladdr $(mac_get $h3.10)
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp3 clsact
+	vlan_destroy $swp3 10
+	ip link set dev $swp3 down
+
+	ip link set dev $swp2.10 nomaster
+	vlan_destroy $swp2 10
+	ip link set dev $swp2 down
+
+	ip link set dev br0 down
+	sysctl_restore net.ipv6.conf.br0.addr_gen_mode
+	ip link del dev br0
+
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+bridge_rif_add()
+{
+	rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	__addr_add_del br0 add 192.0.2.2/28
+	rifs_occ_t1=$(devlink_resource_occ_get rifs)
+
+	expected_rifs=$((rifs_occ_t0 + 1))
+
+	[[ $expected_rifs -eq $rifs_occ_t1 ]]
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	sleep 1
+}
+
+bridge_rif_del()
+{
+	__addr_add_del br0 del 192.0.2.2/28
+}
+
+port_vid_map_rif()
+{
+	RET=0
+
+	# First add {port, VID}->FID for $swp1.10, then add a RIF and verify
+	# that packets can be routed via the existing mapping.
+	vlan_create $swp1 10
+	ip link set dev $swp1.10 master br0
+	bridge_rif_add
+
+	# The hardware matches on the first ethertype which is not VLAN,
+	# so the protocol should be IP.
+	tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.18 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp3 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add RIF for existing {port, VID}->FID mapping"
+
+	tc filter del dev $swp3 egress
+
+	bridge_rif_del
+	ip link set dev $swp1.10 nomaster
+	vlan_destroy $swp1 10
+}
+
+rif_port_vid_map()
+{
+	RET=0
+
+	# First add an address to the bridge, which will create a RIF on top of
+	# it, then add a new {port, VID}->FID mapping and verify that packets
+	# can be routed via the new mapping.
+	bridge_rif_add
+	vlan_create $swp1 10
+	ip link set dev $swp1.10 master br0
+
+	# The hardware matches on the first ethertype which is not VLAN,
+	# so the protocol should be IP.
+	tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.18 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp3 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add {port, VID}->FID mapping for FID with a RIF"
+
+	tc filter del dev $swp3 egress
+
+	ip link set dev $swp1.10 nomaster
+	vlan_destroy $swp1 10
+	bridge_rif_del
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1q.sh b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1q.sh
new file mode 100755
index 000000000000..577293bab88b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_1q.sh
@@ -0,0 +1,264 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test routing over bridge and verify that the order of configuration does not
+# impact switch behavior. Verify that RIF is added correctly for existing
+# mapping and that packets can be routed via port which is added after the FID
+# already has a RIF.
+
+# +-------------------+                   +--------------------+
+# | H1                |                   | H2                 |
+# |                   |                   |                    |
+# |         $h1.10 +  |                   |  + $h2.10          |
+# |   192.0.2.1/28 |  |                   |  | 192.0.2.3/28    |
+# |                |  |                   |  |                 |
+# |            $h1 +  |                   |  + $h2             |
+# +----------------|--+                   +--|-----------------+
+#                  |                         |
+# +----------------|-------------------------|-----------------+
+# | SW             |                         |                 |
+# | +--------------|-------------------------|---------------+ |
+# | |        $swp1 +                         + $swp2         | |
+# | |                                                        | |
+# | |                           br0                          | |
+# | +--------------------------------------------------------+ |
+# |                              |                             |
+# |                           br0.10                           |
+# |                        192.0.2.2/28                        |
+# |                                                            |
+# |                                                            |
+# |          $swp3 +                                           |
+# |  192.0.2.17/28 |                                           |
+# +----------------|-------------------------------------------+
+#                  |
+# +----------------|--+
+# |            $h3 +  |
+# |  192.0.2.18/28    |
+# |                   |
+# | H3                |
+# +-------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	vid_map_rif
+	rif_vid_map
+"
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+
+	ip route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 10 v$h2 192.0.2.3/28
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 10
+	simple_if_fini $h2
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.2.18/28
+	ip route add 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+}
+
+h3_destroy()
+{
+	ip route del 192.0.2.0/28 vrf v$h3 nexthop via 192.0.2.17
+	simple_if_fini $h3 192.0.2.18/28
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+
+	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+	# By default, a link-local address is generated when netdevice becomes
+	# up. Adding an address to the bridge will cause creating a RIF for it.
+	# Prevent generating link-local address to be able to control when the
+	# RIF is added.
+	sysctl_set net.ipv6.conf.br0.addr_gen_mode 1
+	ip link set dev br0 up
+
+	ip link set dev $swp2 up
+	ip link set dev $swp2 master br0
+	bridge vlan add vid 10 dev $swp2
+
+	ip link set dev $swp3 up
+	__addr_add_del $swp3 add 192.0.2.17/28
+	tc qdisc add dev $swp3 clsact
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev $swp3 192.0.2.18 lladdr $(mac_get $h3)
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp3 clsact
+	__addr_add_del $swp3 del 192.0.2.17/28
+	ip link set dev $swp3 down
+
+	bridge vlan del vid 10 dev $swp2
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp2 down
+
+	ip link set dev br0 down
+	sysctl_restore net.ipv6.conf.br0.addr_gen_mode
+	ip link del dev br0
+
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+bridge_rif_add()
+{
+	rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	vlan_create br0 10 "" 192.0.2.2/28
+	rifs_occ_t1=$(devlink_resource_occ_get rifs)
+
+	expected_rifs=$((rifs_occ_t0 + 1))
+
+	[[ $expected_rifs -eq $rifs_occ_t1 ]]
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	sleep 1
+}
+
+bridge_rif_del()
+{
+	vlan_destroy br0 10
+}
+
+vid_map_rif()
+{
+	RET=0
+
+	# First add VID->FID for vlan 10, then add a RIF and verify that
+	# packets can be routed via the existing mapping.
+	bridge vlan add vid 10 dev br0 self
+	ip link set dev $swp1 master br0
+	bridge vlan add vid 10 dev $swp1
+
+	bridge_rif_add
+
+	tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.18 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp3 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add RIF for existing VID->FID mapping"
+
+	tc filter del dev $swp3 egress
+
+	bridge_rif_del
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 nomaster
+	bridge vlan del vid 10 dev br0 self
+}
+
+rif_vid_map()
+{
+	RET=0
+
+	# Using 802.1Q, there is only one VID->FID map for each VID. That means
+	# that we cannot really check adding a new map for existing FID with a
+	# RIF. Verify that packets can be routed via port which is added after
+	# the FID already has a RIF, although in practice there is no new
+	# mapping in the hardware.
+	bridge vlan add vid 10 dev br0 self
+	bridge_rif_add
+
+	ip link set dev $swp1 master br0
+	bridge vlan add vid 10 dev $swp1
+
+	tc filter add dev $swp3 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.18 action pass
+
+	ping_do $h1.10 192.0.2.18
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $swp3 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add port to VID->FID mapping for FID with a RIF"
+
+	tc filter del dev $swp3 egress
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 nomaster
+
+	bridge_rif_del
+	bridge vlan del vid 10 dev br0 self
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_vxlan.sh
new file mode 100755
index 000000000000..90450216a10d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/ingress_rif_conf_vxlan.sh
@@ -0,0 +1,311 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test routing after VXLAN decapsulation and verify that the order of
+# configuration does not impact switch behavior. Verify that RIF is added
+# correctly for existing mapping and that new mapping uses the correct RIF.
+
+# +---------------------------+
+# |                        H1 |
+# |    + $h1                  |
+# |    | 192.0.2.1/28         |
+# +----|----------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                         br1                                  | |
+# | |     vid 10 pvid untagged                                              | |
+# | |                                                                       | |
+# | |                                                                       | |
+# | |                                            + vx4001                   | |
+# | |                                              local 192.0.2.17         | |
+# | |                                              remote 192.0.2.18        | |
+# | |                                              id 104001                | |
+# | |                                              dstport $VXPORT          | |
+# | |                                              vid 4001 pvid untagged   | |
+# | |                                                                       | |
+# | +----------------------------------+------------------------------------+ |
+# |                                    |                                      |
+# | +----------------------------------|------------------------------------+ |
+# | |                                  |                                    | |
+# | |  +-------------------------------+---------------------------------+  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10                                                 vlan4001 +  | |
+# | |    192.0.2.2/28                                                       | |
+# | |                                                                       | |
+# | |                               vrf-green                               | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                       +lo                       |
+# |    | 198.51.100.1/24                             192.0.2.17/32            |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             v$rp2      |
+# |    + $rp2                                                   |
+# |      198.51.100.2/24                                        |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	vni_fid_map_rif
+	rif_vni_fid_map
+"
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+: ${VXPORT:=4789}
+export VXPORT
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 198.51.100.1/24
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+
+	tc qdisc add dev $swp1 clsact
+
+	ip link add name vx4001 type vxlan id 104001 \
+		local 192.0.2.17 dstport $VXPORT \
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx4001 up
+
+	ip link set dev vx4001 master br1
+
+	ip address add 192.0.2.17/32 dev lo
+
+	# Create SVIs.
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+
+	# Replace neighbor to avoid 1 packet which is forwarded in software due
+	# to "unresolved neigh".
+	ip neigh replace dev vlan10 192.0.2.1 lladdr $(mac_get $h1)
+
+	ip address add 192.0.2.2/28 dev vlan10
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 4001 dev br1 self
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+}
+
+switch_destroy()
+{
+	sysctl_restore net.ipv4.conf.all.rp_filter
+
+	bridge vlan del vid 4001 dev br1 self
+	bridge vlan del vid 10 dev br1 self
+
+	ip link del dev vlan10
+
+	vrf_destroy "vrf-green"
+
+	ip address del 192.0.2.17/32 dev lo
+
+	tc qdisc del dev $swp1 clsact
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vx4001 nomaster
+
+	ip link set dev vx4001 down
+	ip link del dev vx4001
+
+	ip address del dev $rp1 198.51.100.1/24
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 198.51.100.2/24
+
+	ip route add 192.0.2.17/32 vrf v$rp2 nexthop via 198.51.100.1
+}
+
+vrp2_destroy()
+{
+	ip route del 192.0.2.17/32 vrf v$rp2 nexthop via 198.51.100.1
+
+	simple_if_fini $rp2 198.51.100.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	switch_create
+
+	vrp2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vrp2_destroy
+
+	switch_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+payload_get()
+{
+	local dest_mac=$(mac_get vlan4001)
+	local src_mac=$(mac_get $rp1)
+
+	p=$(:
+		)"08:"$(                      : VXLAN flags
+		)"00:00:00:"$(                : VXLAN reserved
+		)"01:96:41:"$(                : VXLAN VNI : 104001
+		)"00:"$(                      : VXLAN reserved
+		)"$dest_mac:"$(               : ETH daddr
+		)"$src_mac:"$(                : ETH saddr
+		)"08:00:"$(                   : ETH type
+		)"45:"$(                      : IP version + IHL
+		)"00:"$(                      : IP TOS
+		)"00:54:"$(                   : IP total length
+		)"3f:49:"$(                   : IP identification
+		)"00:00:"$(                   : IP flags + frag off
+		)"3f:"$(                      : IP TTL
+		)"01:"$(                      : IP proto
+		)"50:21:"$(                   : IP header csum
+		)"c6:33:64:0a:"$(             : IP saddr: 198.51.100.10
+		)"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
+	)
+	echo $p
+}
+
+vlan_rif_add()
+{
+	rifs_occ_t0=$(devlink_resource_occ_get rifs)
+
+	ip link add link br1 name vlan4001 up master vrf-green \
+		type vlan id 4001
+
+	rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	expected_rifs=$((rifs_occ_t0 + 1))
+
+	[[ $expected_rifs -eq $rifs_occ_t1 ]]
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+}
+
+vlan_rif_del()
+{
+	ip link del dev vlan4001
+}
+
+vni_fid_map_rif()
+{
+	local rp1_mac=$(mac_get $rp1)
+
+	RET=0
+
+	# First add VNI->FID mapping to the FID of VLAN 4001
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	# Add a RIF to the FID with VNI->FID mapping
+	vlan_rif_add
+
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.1 action pass
+
+	payload=$(payload_get)
+	ip vrf exec v$rp2 $MZ $rp2 -c 10 -d 1msec -b $rp1_mac \
+		-B 192.0.2.17 -A 192.0.2.18 \
+		-t udp sp=12345,dp=$VXPORT,p=$payload -q
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add RIF for existing VNI->FID mapping"
+
+	tc filter del dev $swp1 egress
+
+	bridge vlan del vid 4001 dev vx4001 pvid untagged
+	vlan_rif_del
+}
+
+rif_vni_fid_map()
+{
+	local rp1_mac=$(mac_get $rp1)
+
+	RET=0
+
+	# First add a RIF to the FID of VLAN 4001
+	vlan_rif_add
+
+	# Add VNI->FID mapping to FID with a RIF
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower skip_sw dst_ip 192.0.2.1 action pass
+
+	payload=$(payload_get)
+	ip vrf exec v$rp2 $MZ $rp2 -c 10 -d 1msec -b $rp1_mac \
+		-B 192.0.2.17 -A 192.0.2.18 \
+		-t udp sp=12345,dp=$VXPORT,p=$payload -q
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10
+	check_err $? "Packets were not routed in hardware"
+
+	log_test "Add VNI->FID mapping for FID with a RIF"
+
+	tc filter del dev $swp1 egress
+
+	bridge vlan del vid 4001 dev vx4001 pvid untagged
+	vlan_rif_del
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh
new file mode 100755
index 000000000000..e1ad623146d7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre.sh
@@ -0,0 +1,202 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# ../../../net/forwarding/mirror_gre_topo_lib.sh for more details.
+#
+# Test offloading various features of offloading gretap mirrors specific to
+# mlxsw.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/mirror_lib.sh
+source $lib_dir/mirror_gre_lib.sh
+source $lib_dir/mirror_gre_topo_lib.sh
+
+ALL_TESTS="
+	test_keyful
+	test_soft
+	test_tos_fixed
+	test_ttl_inherit
+"
+
+setup_keyful()
+{
+	tunnel_create gt6-key ip6gretap 2001:db8:3::1 2001:db8:3::2 \
+		      ttl 100 tos inherit allow-localremote \
+		      key 1234
+
+	tunnel_create h3-gt6-key ip6gretap 2001:db8:3::2 2001:db8:3::1 \
+		      key 1234
+	ip link set h3-gt6-key vrf v$h3
+	matchall_sink_create h3-gt6-key
+
+	ip address add dev $swp3 2001:db8:3::1/64
+	ip address add dev $h3 2001:db8:3::2/64
+}
+
+cleanup_keyful()
+{
+	ip address del dev $h3 2001:db8:3::2/64
+	ip address del dev $swp3 2001:db8:3::1/64
+
+	tunnel_destroy h3-gt6-key
+	tunnel_destroy gt6-key
+}
+
+setup_soft()
+{
+	# Set up a topology for testing underlay routes that point at an
+	# unsupported soft device.
+
+	tunnel_create gt6-soft ip6gretap 2001:db8:4::1 2001:db8:4::2 \
+		      ttl 100 tos inherit allow-localremote
+
+	tunnel_create h3-gt6-soft ip6gretap 2001:db8:4::2 2001:db8:4::1
+	ip link set h3-gt6-soft vrf v$h3
+	matchall_sink_create h3-gt6-soft
+
+	ip link add name v1 type veth peer name v2
+	ip link set dev v1 up
+	ip address add dev v1 2001:db8:4::1/64
+
+	ip link set dev v2 vrf v$h3
+	ip link set dev v2 up
+	ip address add dev v2 2001:db8:4::2/64
+}
+
+cleanup_soft()
+{
+	ip link del dev v1
+
+	tunnel_destroy h3-gt6-soft
+	tunnel_destroy gt6-soft
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	setup_keyful
+	setup_soft
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	cleanup_soft
+	cleanup_keyful
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $swp3 2001:db8:2::1/64
+
+	ip address del dev $h3 192.0.2.130/28
+	ip address del dev $swp3 192.0.2.129/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_ttl_inherit()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev type $type ttl inherit
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir $tundev
+
+	ip link set dev $tundev type $type ttl 100
+
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: no offload on TTL of inherit"
+}
+
+test_span_gre_tos_fixed()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev type $type tos 0x10
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir $tundev
+
+	ip link set dev $tundev type $type tos inherit
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: no offload on a fixed TOS"
+}
+
+test_span_failable()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir  $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "fail $what"
+}
+
+test_keyful()
+{
+	test_span_failable gt6-key "mirror to keyful gretap"
+}
+
+test_soft()
+{
+	test_span_failable gt6-soft "mirror to gretap w/ soft underlay"
+}
+
+test_tos_fixed()
+{
+	test_span_gre_tos_fixed gt4 gretap "mirror to gretap"
+	test_span_gre_tos_fixed gt6 ip6gretap "mirror to ip6gretap"
+}
+
+
+test_ttl_inherit()
+{
+	test_span_gre_ttl_inherit gt4 gretap "mirror to gretap"
+	test_span_gre_ttl_inherit gt6 ip6gretap "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/mirror_gre_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre_scale.sh
new file mode 100644
index 000000000000..d43093310e23
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/mirror_gre_scale.sh
@@ -0,0 +1,185 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# Test offloading a number of mirrors-to-gretap. The test creates a number of
+# tunnels. Then it adds one flower mirror for each of the tunnels, matching a
+# given host IP. Then it generates traffic at each of the host IPs and checks
+# that the traffic has been mirrored at the appropriate tunnel.
+#
+#   +--------------------------+                   +--------------------------+
+#   | H1                       |                   |                       H2 |
+#   |     + $h1                |                   |                $h2 +     |
+#   |     | 2001:db8:1:X::1/64 |                   | 2001:db8:1:X::2/64 |     |
+#   +-----|--------------------+                   +--------------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirrors                                                  |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   |     + $swp3                          + gt6-<X> (ip6gretap)              |
+#   |     | 2001:db8:2:X::1/64             : loc=2001:db8:2:X::1              |
+#   |     |                                : rem=2001:db8:2:X::2              |
+#   |     |                                : ttl=100                          |
+#   |     |                                : tos=inherit                      |
+#   |     |                                :                                  |
+#   +-----|--------------------------------:----------------------------------+
+#         |                                :
+#   +-----|--------------------------------:----------------------------------+
+#   | H3  + $h3                            + h3-gt6-<X> (ip6gretap)           |
+#   |       2001:db8:2:X::2/64               loc=2001:db8:2:X::2              |
+#   |                                        rem=2001:db8:2:X::1              |
+#   |                                        ttl=100                          |
+#   |                                        tos=inherit                      |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+
+source ../../../../net/forwarding/mirror_lib.sh
+
+MIRROR_NUM_NETIFS=6
+
+mirror_gre_ipv6_addr()
+{
+	local net=$1; shift
+	local num=$1; shift
+
+	printf "2001:db8:%x:%x" $net $num
+}
+
+mirror_gre_tunnels_create()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	MIRROR_GRE_BATCH_FILE="$(mktemp)"
+	for ((i=0; i < count; ++i)); do
+		local match_dip=$(mirror_gre_ipv6_addr 1 $i)::2
+		local htun=h3-gt6-$i
+		local tun=gt6-$i
+
+		((mirror_gre_tunnels++))
+
+		ip address add dev $h1 $(mirror_gre_ipv6_addr 1 $i)::1/64
+		ip address add dev $h2 $(mirror_gre_ipv6_addr 1 $i)::2/64
+
+		ip address add dev $swp3 $(mirror_gre_ipv6_addr 2 $i)::1/64
+		ip address add dev $h3 $(mirror_gre_ipv6_addr 2 $i)::2/64
+
+		tunnel_create $tun ip6gretap \
+			      $(mirror_gre_ipv6_addr 2 $i)::1 \
+			      $(mirror_gre_ipv6_addr 2 $i)::2 \
+			      ttl 100 tos inherit allow-localremote
+
+		tunnel_create $htun ip6gretap \
+			      $(mirror_gre_ipv6_addr 2 $i)::2 \
+			      $(mirror_gre_ipv6_addr 2 $i)::1
+		ip link set $htun vrf v$h3
+		matchall_sink_create $htun
+
+		cat >> $MIRROR_GRE_BATCH_FILE <<-EOF
+			filter add dev $swp1 ingress pref 1000 \
+				protocol ipv6 \
+				flower skip_sw dst_ip $match_dip \
+				action mirred egress mirror dev $tun
+		EOF
+	done
+
+	tc -b $MIRROR_GRE_BATCH_FILE
+	check_err_fail $should_fail $? "Mirror rule insertion"
+}
+
+mirror_gre_tunnels_destroy()
+{
+	local count=$1; shift
+
+	for ((i=0; i < count; ++i)); do
+		local htun=h3-gt6-$i
+		local tun=gt6-$i
+
+		ip address del dev $h3 $(mirror_gre_ipv6_addr 2 $i)::2/64
+		ip address del dev $swp3 $(mirror_gre_ipv6_addr 2 $i)::1/64
+
+		ip address del dev $h2 $(mirror_gre_ipv6_addr 1 $i)::2/64
+		ip address del dev $h1 $(mirror_gre_ipv6_addr 1 $i)::1/64
+
+		tunnel_destroy $htun
+		tunnel_destroy $tun
+	done
+}
+
+mirror_gre_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	mirror_gre_tunnels_create $count $should_fail
+	if ((should_fail)); then
+	    return
+	fi
+
+	sleep 5
+
+	for ((i = 0; i < count; ++i)); do
+		local sip=$(mirror_gre_ipv6_addr 1 $i)::1
+		local dip=$(mirror_gre_ipv6_addr 1 $i)::2
+		local htun=h3-gt6-$i
+		local message
+
+		icmp6_capture_install $htun
+		mirror_test v$h1 $sip $dip $htun 100 10
+		icmp6_capture_uninstall $htun
+	done
+}
+
+mirror_gre_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	mirror_gre_tunnels=0
+
+	vrf_prepare
+
+	simple_if_init $h1
+	simple_if_init $h2
+	simple_if_init $h3
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	ip link set dev $swp3 up
+}
+
+mirror_gre_cleanup()
+{
+	mirror_gre_tunnels_destroy $mirror_gre_tunnels
+
+	ip link set dev $swp3 down
+
+	ip link set dev $swp2 down
+
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+
+	ip link del dev br1
+
+	simple_if_fini $h3
+	simple_if_fini $h2
+	simple_if_fini $h1
+
+	vrf_cleanup
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh b/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh
new file mode 100644
index 000000000000..48395cfd4f95
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/mlxsw_lib.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Defines
+
+if [[ ! -v MLXSW_CHIP ]]; then
+	MLXSW_CHIP=$(devlink -j dev info $DEVLINK_DEV | jq -r '.[][]["driver"]')
+	if [ -z "$MLXSW_CHIP" ]; then
+		echo "SKIP: Device $DEVLINK_DEV doesn't support devlink info command"
+		exit 1
+	fi
+fi
+
+MLXSW_SPECTRUM_REV=$(case $MLXSW_CHIP in
+			     mlxsw_spectrum)
+				     echo 1 ;;
+			     mlxsw_spectrum*)
+				     echo ${MLXSW_CHIP#mlxsw_spectrum} ;;
+			     *)
+				     echo "Couldn't determine Spectrum chip revision." \
+					  > /dev/stderr ;;
+		     esac)
+
+mlxsw_on_spectrum()
+{
+	local rev=$1; shift
+	local op="=="
+	local rev2=${rev%+}
+
+	if [[ $rev2 != $rev ]]; then
+		op=">="
+	fi
+
+	((MLXSW_SPECTRUM_REV $op rev2))
+}
+
+__mlxsw_only_on_spectrum()
+{
+	local rev=$1; shift
+	local caller=$1; shift
+	local src=$1; shift
+
+	if ! mlxsw_on_spectrum "$rev"; then
+		log_test_xfail $src:$caller "(Spectrum-$rev only)"
+		return 1
+	fi
+}
+
+mlxsw_only_on_spectrum()
+{
+	local caller=${FUNCNAME[1]}
+	local src=${BASH_SOURCE[1]}
+	local rev
+
+	for rev in "$@"; do
+		if __mlxsw_only_on_spectrum "$rev" "$caller" "$src"; then
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+mlxsw_max_descriptors_get()
+{
+	local spectrum_rev=$MLXSW_SPECTRUM_REV
+
+	case $spectrum_rev in
+	1) echo 81920 ;;
+	2) echo 136960 ;;
+	3) echo 204800 ;;
+	4) echo 220000 ;;
+	*) echo "Unknown max descriptors for chip revision." > /dev/stderr
+	   return 1 ;;
+	esac
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/one_armed_router.sh b/tools/testing/selftests/drivers/net/mlxsw/one_armed_router.sh
new file mode 100755
index 000000000000..fca0e1e642c6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/one_armed_router.sh
@@ -0,0 +1,260 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test a "one-armed router" [1] scenario. Packets forwarded between H1 and H2
+# should be forwarded by the ASIC, but also trapped so that ICMP redirect
+# packets could be potentially generated.
+#
+# 1. https://en.wikipedia.org/wiki/One-armed_router
+#
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    | 2001:db8:1::1/64           |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# |    |  default via 2001:db8:1::2 |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |                            192.0.2.2/24                               | |
+# | |                          2001:db8:1::2/64                             | |
+# | |                           198.51.100.2/24                             | |
+# | |                          2001:db8:2::2/64                             | |
+# | |                                                                       | |
+# | |  + $swp2                                                              | |
+# | +--|--------------------------------------------------------------------+ |
+# |    |                                                                      |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------+
+# |    |  default via 198.51.100.2  |
+# |    |  default via 2001:db8:2::2 |
+# |    |                            |
+# |    | 2001:db8:2::1/64           |
+# |    | 198.51.100.1/24            |
+# |    + $h2                        |
+# | H2 (vrf)                        |
+# +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="ping_ipv4 ping_ipv6 fwd_mark_ipv4 fwd_mark_ipv6"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add default vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del default vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24 2001:db8:2::1/64
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+	ip -6 route add default vrf v$h2 nexthop via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del default vrf v$h2 nexthop via 2001:db8:2::2
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/24 2001:db8:2::1/64
+}
+
+switch_create()
+{
+	ip link add name br0 address $(mac_get $swp1) \
+		type bridge mcast_snooping 0
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br0
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+
+	__addr_add_del br0 add 192.0.2.2/24 2001:db8:1::2/64
+	__addr_add_del br0 add 198.51.100.2/24 2001:db8:2::2/64
+}
+
+switch_destroy()
+{
+	__addr_add_del br0 del 198.51.100.2/24 2001:db8:2::2/64
+	__addr_add_del br0 del 192.0.2.2/24 2001:db8:1::2/64
+
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev br0 down
+	ip link del dev br0
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.1 ": h1->h2"
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::1 ": h1->h2"
+}
+
+fwd_mark_ipv4()
+{
+	# Transmit packets from H1 to H2 and make sure they are trapped at
+	# swp1 due to loopback error, but only forwarded by the ASIC through
+	# swp2
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_hw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
+		action pass
+
+	tc filter add dev $swp2 egress protocol ip pref 1 handle 101 flower \
+		skip_hw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
+		action pass
+
+	tc filter add dev $swp2 egress protocol ip pref 2 handle 102 flower \
+		skip_sw dst_ip 198.51.100.1 ip_proto udp dst_port 52768 \
+		action pass
+
+	ip vrf exec v$h1 $MZ $h1 -c 10 -d 100msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	RET=0
+
+	tc_check_packets "dev $swp1 ingress" 101 10
+	check_err $?
+
+	log_test "fwd mark: trapping IPv4 packets due to LBERROR"
+
+	RET=0
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_err $?
+
+	log_test "fwd mark: forwarding IPv4 packets in software"
+
+	RET=0
+
+	tc_check_packets "dev $swp2 egress" 102 10
+	check_err $?
+
+	log_test "fwd mark: forwarding IPv4 packets in hardware"
+
+	tc filter del dev $swp2 egress protocol ip pref 2 handle 102 flower
+	tc filter del dev $swp2 egress protocol ip pref 1 handle 101 flower
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+fwd_mark_ipv6()
+{
+	tc filter add dev $swp1 ingress protocol ipv6 pref 1 handle 101 flower \
+		skip_hw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
+		action pass
+
+	tc filter add dev $swp2 egress protocol ipv6 pref 1 handle 101 flower \
+		skip_hw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
+		action pass
+
+	tc filter add dev $swp2 egress protocol ipv6 pref 2 handle 102 flower \
+		skip_sw dst_ip 2001:db8:2::1 ip_proto udp dst_port 52768 \
+		action pass
+
+	ip vrf exec v$h1 $MZ $h1 -6 -c 10 -d 100msec -p 64 -A 2001:db8:1::1 \
+		-B 2001:db8:2::1 -t udp dp=52768,sp=42768 -q
+
+	RET=0
+
+	tc_check_packets "dev $swp1 ingress" 101 10
+	check_err $?
+
+	log_test "fwd mark: trapping IPv6 packets due to LBERROR"
+
+	RET=0
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_err $?
+
+	log_test "fwd mark: forwarding IPv6 packets in software"
+
+	RET=0
+
+	tc_check_packets "dev $swp2 egress" 102 10
+	check_err $?
+
+	log_test "fwd mark: forwarding IPv6 packets in hardware"
+
+	tc filter del dev $swp2 egress protocol ipv6 pref 2 handle 102 flower
+	tc filter del dev $swp2 egress protocol ipv6 pref 1 handle 101 flower
+	tc filter del dev $swp1 ingress protocol ipv6 pref 1 handle 101 flower
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	sysctl_set net.ipv4.conf.all.accept_redirects 0
+	sysctl_set net.ipv6.conf.all.accept_redirects 0
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	sysctl_restore net.ipv6.conf.all.accept_redirects
+	sysctl_restore net.ipv4.conf.all.accept_redirects
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/pci_reset.sh b/tools/testing/selftests/drivers/net/mlxsw/pci_reset.sh
new file mode 100755
index 000000000000..fe0343b95e6c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/pci_reset.sh
@@ -0,0 +1,58 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that PCI reset works correctly by verifying that only the expected reset
+# methods are supported and that after issuing the reset the ifindex of the
+# port changes.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	pci_reset_test
+"
+NUM_NETIFS=1
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+pci_reset_test()
+{
+	RET=0
+
+	local bus=$(echo $DEVLINK_DEV | cut -d '/' -f 1)
+	local bdf=$(echo $DEVLINK_DEV | cut -d '/' -f 2)
+
+	if [ $bus != "pci" ]; then
+		check_err 1 "devlink device is not a PCI device"
+		log_test "pci reset"
+		return
+	fi
+
+	if [ ! -f /sys/bus/pci/devices/$bdf/reset_method ]; then
+		check_err 1 "reset is not supported"
+		log_test "pci reset"
+		return
+	fi
+
+	[[ $(cat /sys/bus/pci/devices/$bdf/reset_method) == "bus" ]]
+	check_err $? "only \"bus\" reset method should be supported"
+
+	local ifindex_pre=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]')
+
+	echo 1 > /sys/bus/pci/devices/$bdf/reset
+	check_err $? "reset failed"
+
+	# Wait for udev to rename newly created netdev.
+	udevadm settle
+
+	local ifindex_post=$(ip -j link show dev $swp1 | jq '.[]["ifindex"]')
+
+	[[ $ifindex_pre != $ifindex_post ]]
+	check_err $? "reset not performed"
+
+	log_test "pci reset"
+}
+
+swp1=${NETIFS[p1]}
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh b/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh
new file mode 100755
index 000000000000..b1f0781f6b25
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/port_range_occ.sh
@@ -0,0 +1,111 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that filters that match on the same port range, but with different
+# combination of IPv4/IPv6 and TCP/UDP all use the same port range register by
+# observing port range registers' occupancy via devlink-resource.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	port_range_occ_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+switch_create()
+{
+	simple_if_init $swp1
+	tc qdisc add dev $swp1 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+port_range_occ_get()
+{
+	devlink_resource_occ_get port_range_registers
+}
+
+port_range_occ_test()
+{
+	RET=0
+
+	local occ=$(port_range_occ_get)
+
+	# Two port range registers are used, for source and destination port
+	# ranges.
+	tc filter add dev $swp1 ingress pref 1 handle 101 proto ip \
+		flower skip_sw ip_proto udp src_port 1-100 dst_port 1-100 \
+		action pass
+	(( occ + 2 == $(port_range_occ_get) ))
+	check_err $? "Got occupancy $(port_range_occ_get), expected $((occ + 2))"
+
+	tc filter add dev $swp1 ingress pref 1 handle 102 proto ip \
+		flower skip_sw ip_proto tcp src_port 1-100 dst_port 1-100 \
+		action pass
+	tc filter add dev $swp1 ingress pref 2 handle 103 proto ipv6 \
+		flower skip_sw ip_proto udp src_port 1-100 dst_port 1-100 \
+		action pass
+	tc filter add dev $swp1 ingress pref 2 handle 104 proto ipv6 \
+		flower skip_sw ip_proto tcp src_port 1-100 dst_port 1-100 \
+		action pass
+	(( occ + 2 == $(port_range_occ_get) ))
+	check_err $? "Got occupancy $(port_range_occ_get), expected $((occ + 2))"
+
+	tc filter del dev $swp1 ingress pref 2 handle 104 flower
+	tc filter del dev $swp1 ingress pref 2 handle 103 flower
+	tc filter del dev $swp1 ingress pref 1 handle 102 flower
+	(( occ + 2 == $(port_range_occ_get) ))
+	check_err $? "Got occupancy $(port_range_occ_get), expected $((occ + 2))"
+
+	tc filter del dev $swp1 ingress pref 1 handle 101 flower
+	(( occ == $(port_range_occ_get) ))
+	check_err $? "Got occupancy $(port_range_occ_get), expected $occ"
+
+	log_test "port range occupancy"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/port_range_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/port_range_scale.sh
new file mode 100644
index 000000000000..2a70840ff14b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/port_range_scale.sh
@@ -0,0 +1,95 @@
+# SPDX-License-Identifier: GPL-2.0
+
+PORT_RANGE_NUM_NETIFS=2
+
+port_range_h1_create()
+{
+	simple_if_init $h1
+}
+
+port_range_h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+port_range_switch_create()
+{
+	simple_if_init $swp1
+	tc qdisc add dev $swp1 clsact
+}
+
+port_range_switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1
+}
+
+port_range_rules_create()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+	local batch_file="$(mktemp)"
+
+	for ((i = 0; i < count; ++i)); do
+		cat >> $batch_file <<-EOF
+			filter add dev $swp1 ingress \
+				prot ipv4 \
+				pref 1000 \
+				flower skip_sw \
+				ip_proto udp dst_port 1-$((100 + i)) \
+				action pass
+		EOF
+	done
+
+	tc -b $batch_file
+	check_err_fail $should_fail $? "Rule insertion"
+
+	rm -f $batch_file
+}
+
+__port_range_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	port_range_rules_create $count $should_fail
+
+	offload_count=$(tc -j filter show dev $swp1 ingress |
+			jq "[.[] | select(.options.in_hw == true)] | length")
+	((offload_count == count))
+	check_err_fail $should_fail $? "port range offload count"
+}
+
+port_range_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	if ! tc_offload_check $PORT_RANGE_NUM_NETIFS; then
+		check_err 1 "Could not test offloaded functionality"
+		return
+	fi
+
+	__port_range_test $count $should_fail
+}
+
+port_range_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	port_range_h1_create
+	port_range_switch_create
+}
+
+port_range_cleanup()
+{
+	pre_cleanup
+
+	port_range_switch_destroy
+	port_range_h1_destroy
+
+	vrf_cleanup
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh
new file mode 100644
index 000000000000..1e9a4aff76a2
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/port_scale.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for physical ports resource. The test splits each splittable port
+# to its width and checks that eventually the number of physical ports equals
+# the maximum number of physical ports.
+
+PORT_NUM_NETIFS=0
+
+declare -a unsplit
+
+port_setup_prepare()
+{
+	:
+}
+
+port_cleanup()
+{
+	pre_cleanup
+
+	for port in "${unsplit[@]}"; do
+		devlink port unsplit $port
+		check_err $? "Did not unsplit $netdev"
+	done
+	unsplit=()
+}
+
+split_all_ports()
+{
+	local should_fail=$1; shift
+
+	# Loop over the splittable netdevs and create tuples of netdev along
+	# with its width. For example:
+	# '$netdev1 $count1 $netdev2 $count2...', when:
+	# $netdev1-2 are splittable netdevs in the device, and
+	# $count1-2 are the netdevs width respectively.
+	while read netdev count <<<$(
+		devlink -j port show |
+		jq -r '.[][] | select(.splittable==true) | "\(.netdev) \(.lanes)"'
+		)
+		[[ ! -z $netdev ]]
+	do
+		devlink port split $netdev count $count
+		check_err $? "Did not split $netdev into $count"
+		unsplit+=( "${netdev}s0" )
+	done
+}
+
+port_test()
+{
+	local max_ports=$1; shift
+	local should_fail=$1; shift
+
+	split_all_ports $should_fail
+
+	occ=$(devlink -j resource show $DEVLINK_DEV \
+	      | jq '.[][][] | select(.name=="physical_ports") |.["occ"]')
+
+	[[ $occ -eq $max_ports ]]
+	check_err_fail $should_fail $? "Attempt to create $max_ports ports (actual result $occ)"
+
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/q_in_q_veto.sh b/tools/testing/selftests/drivers/net/mlxsw/q_in_q_veto.sh
new file mode 100755
index 000000000000..00d55b0e98c1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/q_in_q_veto.sh
@@ -0,0 +1,304 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	create_8021ad_vlan_upper_on_top_front_panel_port
+	create_8021ad_vlan_upper_on_top_bridge_port
+	create_8021ad_vlan_upper_on_top_lag
+	create_8021ad_vlan_upper_on_top_bridge
+	create_8021ad_vlan_upper_on_top_8021ad_bridge
+	create_vlan_upper_on_top_8021ad_bridge
+	create_vlan_upper_on_top_front_panel_enslaved_to_8021ad_bridge
+	create_vlan_upper_on_top_lag_enslaved_to_8021ad_bridge
+	enslave_front_panel_with_vlan_upper_to_8021ad_bridge
+	enslave_lag_with_vlan_upper_to_8021ad_bridge
+	add_ip_address_to_8021ad_bridge
+	switch_bridge_protocol_from_8021q_to_8021ad
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	sleep 10
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+create_vlan_upper_on_top_of_bridge()
+{
+	RET=0
+
+	local bridge_proto=$1; shift
+	local netdev_proto=$1; shift
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol $bridge_proto vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+
+	ip link set dev br0 up
+	ip link set dev $swp1 master br0
+
+	ip link add name br0.100 link br0 type vlan \
+		protocol $netdev_proto id 100 2>/dev/null
+	check_fail $? "$netdev_proto vlan upper creation on top of an $bridge_proto bridge not rejected"
+
+	ip link add name br0.100 link br0 type vlan \
+		protocol $netdev_proto id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "$netdev_proto vlan upper creation on top of an $bridge_proto bridge rejected without extack"
+
+	log_test "create $netdev_proto vlan upper on top $bridge_proto bridge"
+
+	ip link del dev br0
+}
+
+create_8021ad_vlan_upper_on_top_front_panel_port()
+{
+	RET=0
+
+	ip link add name $swp1.100 link $swp1 type vlan \
+		protocol 802.1ad id 100 2>/dev/null
+	check_fail $? "802.1ad vlan upper creation on top of a front panel not rejected"
+
+	ip link add name $swp1.100 link $swp1 type vlan \
+		protocol 802.1ad id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "802.1ad vlan upper creation on top of a front panel rejected without extack"
+
+	log_test "create 802.1ad vlan upper on top of a front panel"
+}
+
+create_8021ad_vlan_upper_on_top_bridge_port()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+
+	ip link set dev $swp1 master br0
+	ip link set dev br0 up
+
+	ip link add name $swp1.100 link $swp1 type vlan \
+		protocol 802.1ad id 100 2>/dev/null
+	check_fail $? "802.1ad vlan upper creation on top of a bridge port not rejected"
+
+	ip link add name $swp1.100 link $swp1 type vlan \
+		protocol 802.1ad id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "802.1ad vlan upper creation on top of a bridge port rejected without extack"
+
+	log_test "create 802.1ad vlan upper on top of a bridge port"
+
+	ip link del dev br0
+}
+
+create_8021ad_vlan_upper_on_top_lag()
+{
+	RET=0
+
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master bond1
+
+	ip link add name bond1.100 link bond1 type vlan \
+		protocol 802.1ad id 100 2>/dev/null
+	check_fail $? "802.1ad vlan upper creation on top of a lag not rejected"
+
+	ip link add name bond1.100 link bond1 type vlan \
+		protocol 802.1ad id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "802.1ad vlan upper creation on top of a lag rejected without extack"
+
+	log_test "create 802.1ad vlan upper on top of a lag"
+
+	ip link del dev bond1
+}
+
+create_8021ad_vlan_upper_on_top_bridge()
+{
+	RET=0
+
+	create_vlan_upper_on_top_of_bridge "802.1q" "802.1ad"
+}
+
+create_8021ad_vlan_upper_on_top_8021ad_bridge()
+{
+	RET=0
+
+	create_vlan_upper_on_top_of_bridge "802.1ad" "802.1ad"
+}
+
+create_vlan_upper_on_top_8021ad_bridge()
+{
+	RET=0
+
+	create_vlan_upper_on_top_of_bridge "802.1ad" "802.1q"
+}
+
+create_vlan_upper_on_top_front_panel_enslaved_to_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+
+	ip link add name $swp1.100 link $swp1 type vlan id 100 2>/dev/null
+	check_fail $? "vlan upper creation on top of front panel enslaved to 802.1ad bridge not rejected"
+
+	ip link add name $swp1.100 link $swp1 type vlan id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "vlan upper creation on top of front panel enslaved to 802.1ad bridge rejected without extack"
+
+	log_test "create vlan upper on top of front panel enslaved to 802.1ad bridge"
+
+	ip link del dev br0
+}
+
+create_vlan_upper_on_top_lag_enslaved_to_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master bond1
+	ip link set dev bond1 master br0
+
+	ip link add name bond1.100 link bond1 type vlan id 100 2>/dev/null
+	check_fail $? "vlan upper creation on top of lag enslaved to 802.1ad bridge not rejected"
+
+	ip link add name bond1.100 link bond1 type vlan id 100 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "vlan upper creation on top of lag enslaved to 802.1ad bridge rejected without extack"
+
+	log_test "create vlan upper on top of lag enslaved to 802.1ad bridge"
+
+	ip link del dev bond1
+	ip link del dev br0
+}
+
+enslave_front_panel_with_vlan_upper_to_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link add name $swp1.100 link $swp1 type vlan id 100
+
+	ip link set dev $swp1 master br0 2>/dev/null
+	check_fail $? "front panel with vlan upper enslavemnt to 802.1ad bridge not rejected"
+
+	ip link set dev $swp1 master br0 2>&1 >/dev/null | grep -q mlxsw_spectrum
+	check_err $? "front panel with vlan upper enslavemnt to 802.1ad bridge rejected without extack"
+
+	log_test "enslave front panel with vlan upper to 802.1ad bridge"
+
+	ip link del dev $swp1.100
+	ip link del dev br0
+}
+
+enslave_lag_with_vlan_upper_to_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master bond1
+	ip link add name bond1.100 link bond1 type vlan id 100
+
+	ip link set dev bond1 master br0 2>/dev/null
+	check_fail $? "lag with vlan upper enslavemnt to 802.1ad bridge not rejected"
+
+	ip link set dev bond1 master br0 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "lag with vlan upper enslavemnt to 802.1ad bridge rejected without extack"
+
+	log_test "enslave lag with vlan upper to 802.1ad bridge"
+
+	ip link del dev bond1
+	ip link del dev br0
+}
+
+
+add_ip_address_to_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+
+	ip link set dev br0 up
+	ip link set dev $swp1 master br0
+
+	ip addr add dev br0 192.0.2.17/28 2>/dev/null
+	check_fail $? "IP address addition to 802.1ad bridge not rejected"
+
+	ip addr add dev br0 192.0.2.17/28 2>&1 >/dev/null | grep -q mlxsw_spectrum
+	check_err $? "IP address addition to 802.1ad bridge rejected without extack"
+
+	log_test "IP address addition to 802.1ad bridge"
+
+	ip link del dev br0
+}
+
+switch_bridge_protocol_from_8021q_to_8021ad()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+
+	ip link set dev br0 up
+	ip link set dev $swp1 master br0
+
+	ip link set dev br0 type bridge vlan_protocol 802.1q 2>/dev/null
+	check_fail $? "switching bridge protocol from 802.1q to 802.1ad not rejected"
+
+	log_test "switch bridge protocol"
+
+	ip link del dev br0
+}
+
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
new file mode 100755
index 000000000000..5492fa5550d7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_defprio.sh
@@ -0,0 +1,130 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for port-default priority. Non-IP packets ingress $swp1 and are
+# prioritized according to the default priority specified at the port.
+# rx_octets_prio_* counters are used to verify the prioritization.
+#
+# +----------------------------------+
+# | H1                               |
+# |    + $h1                         |
+# |    | 192.0.2.1/28                |
+# +----|-----------------------------+
+#      |
+# +----|-----------------------------+
+# | SW |                             |
+# |    + $swp1                       |
+# |      192.0.2.2/28                |
+# |      dcb app default-prio <prio> |
+# +----------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_defprio
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=2
+: ${HIT_TIMEOUT:=1000} # ms
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	ip addr add dev $swp1 192.0.2.2/28
+}
+
+switch_destroy()
+{
+	dcb app flush dev $swp1 default-prio
+	ip addr del dev $swp1 192.0.2.2/28
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+__test_defprio()
+{
+	local prio_install=$1; shift
+	local prio_observe=$1; shift
+	local key
+	local t1
+	local i
+
+	RET=0
+
+	dcb app add dev $swp1 default-prio $prio_install
+
+	local t0=$(ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
+	mausezahn -q $h1 -d 100m -c 10 -t arp reply
+	t1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((t0 + 10))" \
+		ethtool_stats_get $swp1 rx_frames_prio_$prio_observe)
+
+	check_err $? "Default priority $prio_install/$prio_observe: Expected to capture 10 packets, got $((t1 - t0))."
+	log_test "Default priority $prio_install/$prio_observe"
+
+	dcb app del dev $swp1 default-prio $prio_install
+}
+
+test_defprio()
+{
+	local prio
+
+	for prio in {0..7}; do
+		__test_defprio $prio $prio
+	done
+
+	dcb app add dev $swp1 default-prio 3
+	__test_defprio 0 3
+	__test_defprio 1 3
+	__test_defprio 2 3
+	__test_defprio 4 4
+	__test_defprio 5 5
+	__test_defprio 6 6
+	__test_defprio 7 7
+	dcb app del dev $swp1 default-prio 3
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
new file mode 100755
index 000000000000..914c63d6318a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_bridge.sh
@@ -0,0 +1,182 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for DSCP prioritization and rewrite. Packets ingress $swp1 with a DSCP
+# tag and are prioritized according to the map at $swp1. They egress $swp2 and
+# the DSCP value is updated to match the map at that interface. The updated DSCP
+# tag is verified at $h2.
+#
+# ICMP responses are produced with the same DSCP tag that arrived at $h2. They
+# go through prioritization at $swp2 and DSCP retagging at $swp1. The tag is
+# verified at $h1--it should match the original tag.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |  +-|----------------------------------------------------------------|-+   |
+# |  | + $swp1                       BR                           $swp2 + |   |
+# |  |   dcb dscp-prio 10:0...17:7            dcb dscp-prio 20:0...27:7   |   |
+# |  +--------------------------------------------------------------------+   |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_dscp
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+	tc qdisc add dev $h1 clsact
+	dscp_capture_install $h1 10
+}
+
+h1_destroy()
+{
+	dscp_capture_uninstall $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+	tc qdisc add dev $h2 clsact
+	dscp_capture_install $h2 20
+}
+
+h2_destroy()
+{
+	dscp_capture_uninstall $h2 20
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	dcb app add dev $swp1 dscp-prio 10:0 11:1 12:2 13:3 14:4 15:5 16:6 17:7
+	dcb app add dev $swp2 dscp-prio 20:0 21:1 22:2 23:3 24:4 25:5 26:6 27:7
+}
+
+switch_destroy()
+{
+	dcb app del dev $swp2 dscp-prio 20:0 21:1 22:2 23:3 24:4 25:5 26:6 27:7
+	dcb app del dev $swp1 dscp-prio 10:0 11:1 12:2 13:3 14:4 15:5 16:6 17:7
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+dscp_ping_test()
+{
+	local vrf_name=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local prio=$1; shift
+	local dev_10=$1; shift
+	local dev_20=$1; shift
+	local key
+
+	local dscp_10=$(((prio + 10) << 2))
+	local dscp_20=$(((prio + 20) << 2))
+
+	RET=0
+
+	local -A t0s
+	eval "t0s=($(dscp_fetch_stats $dev_10 10)
+		   $(dscp_fetch_stats $dev_20 20))"
+
+	local ping_timeout=$((PING_TIMEOUT * 5))
+	ip vrf exec $vrf_name \
+	   ${PING} -Q $dscp_10 ${sip:+-I $sip} $dip \
+		   -c 10 -i 0.5 -w $ping_timeout &> /dev/null
+
+	local -A t1s
+	eval "t1s=($(dscp_fetch_stats $dev_10 10)
+		   $(dscp_fetch_stats $dev_20 20))"
+
+	for key in ${!t0s[@]}; do
+		local expect
+		if ((key == prio+10 || key == prio+20)); then
+			expect=10
+		else
+			expect=0
+		fi
+
+		local delta=$((t1s[$key] - t0s[$key]))
+		((expect == delta))
+		check_err $? "DSCP $key: Expected to capture $expect packets, got $delta."
+	done
+
+	log_test "DSCP rewrite: $dscp_10-(prio $prio)-$dscp_20"
+}
+
+test_dscp()
+{
+	local prio
+
+	for prio in {0..7}; do
+		dscp_ping_test v$h1 192.0.2.1 192.0.2.2 $prio $h1 $h2
+	done
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh
new file mode 100755
index 000000000000..f6c23f84423e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_dscp_router.sh
@@ -0,0 +1,269 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for DSCP prioritization in the router.
+#
+# With ip_forward_update_priority disabled, the packets are expected to keep
+# their DSCP (which in this test uses only values 0..7) intact as they are
+# forwarded by the switch. That is verified at $h2. ICMP responses are formed
+# with the same DSCP as the requests, and likewise pass through the switch
+# intact, which is verified at $h1.
+#
+# With ip_forward_update_priority enabled, router reprioritizes the packets
+# according to the table in reprioritize(). Thus, say, DSCP 7 maps to priority
+# 4, which on egress maps back to DSCP 4. The response packet then gets
+# reprioritized to 6, getting DSCP 6 on egress.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |  192.0.2.18/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |    + $swp1                                                    $swp2 +     |
+# |      192.0.2.2/28                                     192.0.2.17/28       |
+# |      APP=0,5,0 .. 7,5,7                          APP=0,5,0 .. 7,5,7       |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_update
+	test_no_update
+	test_pedit_norewrite
+	test_dscp_leftover
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+
+reprioritize()
+{
+	local in=$1; shift
+
+	# This is based on rt_tos2priority in include/net/route.h. Assuming 1:1
+	# mapping between priorities and TOS, it yields a new priority for a
+	# packet with ingress priority of $in.
+	local -a reprio=(0 0 2 2 6 6 4 4)
+
+	echo ${reprio[$in]}
+}
+
+zero()
+{
+    echo 0
+}
+
+three()
+{
+    echo 3
+}
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+	tc qdisc add dev $h1 clsact
+	dscp_capture_install $h1 0
+	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	dscp_capture_uninstall $h1 0
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.18/28
+	tc qdisc add dev $h2 clsact
+	dscp_capture_install $h2 0
+	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	dscp_capture_uninstall $h2 0
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.18/28
+}
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.2/28
+	__simple_if_init $swp2 v$swp1 192.0.2.17/28
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+
+	dcb app add dev $swp1 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+	dcb app add dev $swp2 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+}
+
+switch_destroy()
+{
+	dcb app del dev $swp2 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+	dcb app del dev $swp1 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	__simple_if_fini $swp2 192.0.2.17/28
+	simple_if_fini $swp1 192.0.2.2/28
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	sysctl_set net.ipv4.ip_forward_update_priority 1
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	sysctl_restore net.ipv4.ip_forward_update_priority
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.18
+}
+
+dscp_ping_test()
+{
+	local vrf_name=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local prio=$1; shift
+	local reprio=$1; shift
+	local dev1=$1; shift
+	local dev2=$1; shift
+	local i
+
+	local prio2=$($reprio $prio)   # ICMP Request egress prio
+	local prio3=$($reprio $prio2)  # ICMP Response egress prio
+
+	local dscp=$((prio << 2))     # ICMP Request ingress DSCP
+	local dscp2=$((prio2 << 2))   # ICMP Request egress DSCP
+	local dscp3=$((prio3 << 2))   # ICMP Response egress DSCP
+
+	RET=0
+
+	eval "local -A dev1_t0s=($(dscp_fetch_stats $dev1 0))"
+	eval "local -A dev2_t0s=($(dscp_fetch_stats $dev2 0))"
+
+	local ping_timeout=$((PING_TIMEOUT * 5))
+	ip vrf exec $vrf_name \
+	   ${PING} -Q $dscp ${sip:+-I $sip} $dip \
+		   -c 10 -i 0.5 -w $ping_timeout &> /dev/null
+
+	eval "local -A dev1_t1s=($(dscp_fetch_stats $dev1 0))"
+	eval "local -A dev2_t1s=($(dscp_fetch_stats $dev2 0))"
+
+	for i in {0..7}; do
+		local dscpi=$((i << 2))
+		local expect2=0
+		local expect3=0
+
+		if ((i == prio2)); then
+			expect2=10
+		fi
+		if ((i == prio3)); then
+			expect3=10
+		fi
+
+		local delta=$((dev2_t1s[$i] - dev2_t0s[$i]))
+		((expect2 == delta))
+		check_err $? "DSCP $dscpi@$dev2: Expected to capture $expect2 packets, got $delta."
+
+		delta=$((dev1_t1s[$i] - dev1_t0s[$i]))
+		((expect3 == delta))
+		check_err $? "DSCP $dscpi@$dev1: Expected to capture $expect3 packets, got $delta."
+	done
+
+	log_test "DSCP rewrite: $dscp-(prio $prio2)-$dscp2-(prio $prio3)-$dscp3"
+}
+
+__test_update()
+{
+	local update=$1; shift
+	local reprio=$1; shift
+	local prio
+
+	sysctl_restore net.ipv4.ip_forward_update_priority
+	sysctl_set net.ipv4.ip_forward_update_priority $update
+
+	for prio in {0..7}; do
+		dscp_ping_test v$h1 192.0.2.1 192.0.2.18 $prio $reprio $h1 $h2
+	done
+}
+
+test_update()
+{
+	echo "Test net.ipv4.ip_forward_update_priority=1"
+	__test_update 1 reprioritize
+}
+
+test_no_update()
+{
+	echo "Test net.ipv4.ip_forward_update_priority=0"
+	__test_update 0 echo
+}
+
+# Test that when DSCP is updated in pedit, the DSCP rewrite is turned off.
+test_pedit_norewrite()
+{
+	echo "Test no DSCP rewrite after DSCP is updated by pedit"
+
+	tc filter add dev $swp1 ingress handle 101 pref 1 prot ip flower \
+	    action pedit ex munge ip dsfield set $((3 << 2)) retain 0xfc \
+	    action skbedit priority 3
+
+	__test_update 0 three
+
+	tc filter del dev $swp1 ingress pref 1
+}
+
+# Test that when the last APP rule is removed, the prio->DSCP map is properly
+# set to zeroes, and that the last APP rule does not stay active in the ASIC.
+test_dscp_leftover()
+{
+	echo "Test that last removed DSCP rule is deconfigured correctly"
+
+	dcb app del dev $swp2 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+	__test_update 0 zero
+
+	dcb app add dev $swp2 dscp-prio 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh
new file mode 100755
index 000000000000..9ca340c5f3a6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_ets_strict.sh
@@ -0,0 +1,324 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# A test for strict prioritization of traffic in the switch. Run two streams of
+# traffic, each through a different ingress port, one tagged with PCP of 1, the
+# other with PCP of 2. Both streams converge at one egress port, where they are
+# assigned TC of, respectively, 1 and 2, with strict priority configured between
+# them. In H3, we expect to see (almost) exclusively the high-priority traffic.
+#
+# Please see qos_mc_aware.sh for an explanation of why we use mausezahn and
+# counters instead of just running iperf3.
+#
+# +---------------------------+                 +-----------------------------+
+# | H1                        |                 |                          H2 |
+# |         $h1.111 +         |                 |         + $h2.222           |
+# |   192.0.2.33/28 |         |                 |         | 192.0.2.65/28     |
+# |   e-qos-map 0:1 |         |                 |         | e-qos-map 0:2     |
+# |                 |         |                 |         |                   |
+# |             $h1 +         |                 |         + $h2               |
+# +-----------------|---------+                 +---------|-------------------+
+#                   |                                     |
+# +-----------------|-------------------------------------|-------------------+
+# |           $swp1 +                                     + $swp2             |
+# |          >1Gbps |                                     | >1Gbps            |
+# | +---------------|-----------+              +----------|----------------+  |
+# | |     $swp1.111 +           |              |          + $swp2.222      |  |
+# | |                     BR111 |       SW     | BR222                     |  |
+# | |     $swp3.111 +           |              |          + $swp3.222      |  |
+# | +---------------|-----------+              +----------|----------------+  |
+# |                 \_____________________________________/                   |
+# |                                    |                                      |
+# |                                    + $swp3                                |
+# |                                    | 1Gbps bottleneck                     |
+# |                                    | ETS: (up n->tc n for n in 0..7)      |
+# |                                    |      strict priority                 |
+# +------------------------------------|--------------------------------------+
+#                                      |
+#                 +--------------------|--------------------+
+#                 |                    + $h3             H3 |
+#                 |                   / \                   |
+#                 |                  /   \                  |
+#                 |         $h3.111 +     + $h3.222         |
+#                 |  192.0.2.34/28          192.0.2.66/28   |
+#                 +-----------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_ets_strict
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source qos_lib.sh
+
+h1_create()
+{
+	adf_simple_if_init $h1
+
+	mtu_set $h1 10000
+	defer mtu_restore $h1
+
+	vlan_create $h1 111 v$h1 192.0.2.33/28
+	defer vlan_destroy $h1 111
+	ip link set dev $h1.111 type vlan egress-qos-map 0:1
+}
+
+h2_create()
+{
+	adf_simple_if_init $h2
+
+	mtu_set $h2 10000
+	defer mtu_restore $h2
+
+	vlan_create $h2 222 v$h2 192.0.2.65/28
+	defer vlan_destroy $h2 222
+	ip link set dev $h2.222 type vlan egress-qos-map 0:2
+}
+
+h3_create()
+{
+	adf_simple_if_init $h3
+
+	mtu_set $h3 10000
+	defer mtu_restore $h3
+
+	vlan_create $h3 111 v$h3 192.0.2.34/28
+	defer vlan_destroy $h3 111
+
+	vlan_create $h3 222 v$h3 192.0.2.66/28
+	defer vlan_destroy $h3 222
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	defer ip link set dev $swp1 down
+
+	mtu_set $swp1 10000
+	defer mtu_restore $swp1
+
+	ip link set dev $swp2 up
+	defer ip link set dev $swp2 down
+
+	mtu_set $swp2 10000
+	defer mtu_restore $swp2
+
+	# prio n -> TC n, strict scheduling
+	lldptool -T -i $swp3 -V ETS-CFG up2tc=0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7
+	defer lldptool -T -i $swp3 -V ETS-CFG up2tc=0:0,1:0,2:0,3:0,4:0,5:0,6:0,7:0
+
+	lldptool -T -i $swp3 -V ETS-CFG tsa=$(
+			)"0:strict,"$(
+			)"1:strict,"$(
+			)"2:strict,"$(
+			)"3:strict,"$(
+			)"4:strict,"$(
+			)"5:strict,"$(
+			)"6:strict,"$(
+			)"7:strict"
+	sleep 1
+
+	ip link set dev $swp3 up
+	defer ip link set dev $swp3 down
+
+	mtu_set $swp3 10000
+	defer mtu_restore $swp3
+
+	tc qdisc replace dev $swp3 root handle 101: tbf rate 1gbit \
+		burst 128K limit 1G
+	defer tc qdisc del dev $swp3 root handle 101:
+
+	vlan_create $swp1 111
+	defer vlan_destroy $swp1 111
+
+	vlan_create $swp2 222
+	defer vlan_destroy $swp2 222
+
+	vlan_create $swp3 111
+	defer vlan_destroy $swp3 111
+
+	vlan_create $swp3 222
+	defer vlan_destroy $swp3 222
+
+	ip link add name br111 type bridge vlan_filtering 0
+	defer ip link del dev br111
+	ip link set dev br111 addrgenmode none
+
+	ip link set dev br111 up
+	defer ip link set dev br111 down
+
+	ip link set dev $swp1.111 master br111
+	defer ip link set dev $swp1.111 nomaster
+
+	ip link set dev $swp3.111 master br111
+	defer ip link set dev $swp3.111 nomaster
+
+	ip link add name br222 type bridge vlan_filtering 0
+	defer ip link del dev br222
+	ip link set dev br222 addrgenmode none
+
+	ip link set dev br222 up
+	defer ip link set dev br222 down
+
+	ip link set dev $swp2.222 master br222
+	defer ip link set dev $swp2.222 nomaster
+
+	ip link set dev $swp3.222 master br222
+	defer ip link set dev $swp3.222 nomaster
+
+	# Make sure that ingress quotas are smaller than egress so that there is
+	# room for both streams of traffic to be admitted to shared buffer.
+	devlink_pool_size_thtype_save 0
+	devlink_pool_size_thtype_set 0 dynamic 10000000
+	defer devlink_pool_size_thtype_restore 0
+
+	devlink_pool_size_thtype_save 4
+	devlink_pool_size_thtype_set 4 dynamic 10000000
+	defer devlink_pool_size_thtype_restore 4
+
+	devlink_port_pool_th_save $swp1 0
+	devlink_port_pool_th_set $swp1 0 6
+	defer devlink_port_pool_th_restore $swp1 0
+
+	devlink_tc_bind_pool_th_save $swp1 1 ingress
+	devlink_tc_bind_pool_th_set $swp1 1 ingress 0 6
+	defer devlink_tc_bind_pool_th_restore $swp1 1 ingress
+
+	devlink_port_pool_th_save $swp2 0
+	devlink_port_pool_th_set $swp2 0 6
+	defer devlink_port_pool_th_restore $swp2 0
+
+	devlink_tc_bind_pool_th_save $swp2 2 ingress
+	devlink_tc_bind_pool_th_set $swp2 2 ingress 0 6
+	defer devlink_tc_bind_pool_th_restore $swp2 2 ingress
+
+	devlink_tc_bind_pool_th_save $swp3 1 egress
+	devlink_tc_bind_pool_th_set $swp3 1 egress 4 7
+	defer devlink_tc_bind_pool_th_restore $swp3 1 egress
+
+	devlink_tc_bind_pool_th_save $swp3 2 egress
+	devlink_tc_bind_pool_th_set $swp3 2 egress 4 7
+	defer devlink_tc_bind_pool_th_restore $swp3 2 egress
+
+	devlink_port_pool_th_save $swp3 4
+	devlink_port_pool_th_set $swp3 4 7
+	defer devlink_port_pool_th_restore $swp3 4
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	h3mac=$(mac_get $h3)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.34 " from H1"
+	ping_test $h2 192.0.2.66 " from H2"
+}
+
+rel()
+{
+	local old=$1; shift
+	local new=$1; shift
+
+	bc <<< "
+	    scale=2
+	    ret = 100 * $new / $old
+	    if (ret > 0) { ret } else { 0 }
+	"
+}
+
+__run_hi_measure_rate()
+{
+	local what=$1; shift
+	local -a uc_rate
+
+	start_traffic $h2.222 192.0.2.65 192.0.2.66 $h3mac
+	defer stop_traffic $!
+
+	uc_rate=($(measure_rate $swp2 $h3 rx_octets_prio_2 "$what"))
+	check_err $? "Could not get high enough $what ingress rate"
+
+	echo ${uc_rate[@]}
+}
+
+run_hi_measure_rate()
+{
+	in_defer_scope __run_hi_measure_rate "$@"
+}
+
+test_ets_strict()
+{
+	RET=0
+
+	# Run high-prio traffic on its own.
+	local -a rate_2
+	rate_2=($(run_hi_measure_rate "prio 2"))
+	local rate_2_in=${rate_2[0]}
+	local rate_2_eg=${rate_2[1]}
+
+	# Start low-prio stream.
+	start_traffic $h1.111 192.0.2.33 192.0.2.34 $h3mac
+	defer stop_traffic $!
+
+	local -a rate_1
+	rate_1=($(measure_rate $swp1 $h3 rx_octets_prio_1 "prio 1"))
+	check_err $? "Could not get high enough prio-1 ingress rate"
+	local rate_1_in=${rate_1[0]}
+	local rate_1_eg=${rate_1[1]}
+
+	# High-prio and low-prio on their own should have about the same
+	# throughput.
+	local rel21=$(rel $rate_1_eg $rate_2_eg)
+	check_err $(bc <<< "$rel21 < 95")
+	check_err $(bc <<< "$rel21 > 105")
+
+	# Start the high-prio stream--now both streams run.
+	rate_3=($(run_hi_measure_rate "prio 2+1"))
+	local rate_3_in=${rate_3[0]}
+	local rate_3_eg=${rate_3[1]}
+
+	# High-prio should have about the same throughput whether or not
+	# low-prio is in the system.
+	local rel32=$(rel $rate_2_eg $rate_3_eg)
+	check_err $(bc <<< "$rel32 < 95")
+
+	log_test "strict priority"
+	echo "Ingress to switch:"
+	echo "  p1 in rate            $(humanize $rate_1_in)"
+	echo "  p2 in rate            $(humanize $rate_2_in)"
+	echo "  p2 in rate w/ p1      $(humanize $rate_3_in)"
+	echo "Egress from switch:"
+	echo "  p1 eg rate            $(humanize $rate_1_eg)"
+	echo "  p2 eg rate            $(humanize $rate_2_eg) ($rel21% of p1)"
+	echo "  p2 eg rate w/ p1      $(humanize $rate_3_eg) ($rel32% of p2)"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh
new file mode 100755
index 000000000000..88162b4027c0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_headroom.sh
@@ -0,0 +1,379 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	test_defaults
+	test_dcb_ets
+	test_mtu
+	test_pfc
+	test_int_buf
+	test_tc_priomap
+	test_tc_mtu
+	test_tc_sizes
+	test_tc_int_buf
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+swp=$NETIF_NO_CABLE
+
+cleanup()
+{
+	pre_cleanup
+}
+
+get_prio_pg()
+{
+	# Produces a string of numbers "<B0> <B1> ... <B7> ", where BX is number
+	# of buffer that priority X is mapped to.
+	dcb -j buffer show dev $swp |
+		jq -r '[.prio_buffer | .[] | tostring + " "] | add'
+}
+
+get_prio_pfc()
+{
+	# Produces a string of numbers "<P0> <P1> ... <P7> ", where PX denotes
+	# whether priority X has PFC enabled (the value is 1) or disabled (0).
+	dcb -j pfc show dev $swp |
+		jq -r '[.prio_pfc | .[] | if . then "1 " else "0 " end] | add'
+}
+
+get_prio_tc()
+{
+	# Produces a string of numbers "<T0> <T1> ... <T7> ", where TC is number
+	# of TC that priority X is mapped to.
+	dcb -j ets show dev $swp |
+		jq -r '[.prio_tc | .[] | tostring + " "] | add'
+}
+
+get_buf_size()
+{
+	local idx=$1; shift
+
+	dcb -j buffer show dev $swp | jq ".buffer_size[$idx]"
+}
+
+get_tot_size()
+{
+	dcb -j buffer show dev $swp | jq '.total_size'
+}
+
+check_prio_pg()
+{
+	local expect=$1; shift
+
+	local current=$(get_prio_pg)
+	test "$current" = "$expect"
+	check_err $? "prio2buffer is '$current', expected '$expect'"
+}
+
+check_prio_pfc()
+{
+	local expect=$1; shift
+
+	local current=$(get_prio_pfc)
+	test "$current" = "$expect"
+	check_err $? "prio PFC is '$current', expected '$expect'"
+}
+
+check_prio_tc()
+{
+	local expect=$1; shift
+
+	local current=$(get_prio_tc)
+	test "$current" = "$expect"
+	check_err $? "prio_tc is '$current', expected '$expect'"
+}
+
+__check_buf_size()
+{
+	local idx=$1; shift
+	local expr=$1; shift
+	local what=$1; shift
+
+	local current=$(get_buf_size $idx)
+	((current $expr))
+	check_err $? "${what}buffer $idx size is '$current', expected '$expr'"
+	echo $current
+}
+
+check_buf_size()
+{
+	__check_buf_size "$@" > /dev/null
+}
+
+test_defaults()
+{
+	RET=0
+
+	check_prio_pg "0 0 0 0 0 0 0 0 "
+	check_prio_tc "0 0 0 0 0 0 0 0 "
+	check_prio_pfc "0 0 0 0 0 0 0 0 "
+
+	log_test "Default headroom configuration"
+}
+
+test_dcb_ets()
+{
+	RET=0
+
+	dcb ets set dev $swp prio-tc 0:0 1:2 2:4 3:6 4:1 5:3 6:5 7:7
+
+	check_prio_pg "0 2 4 6 1 3 5 7 "
+	check_prio_tc "0 2 4 6 1 3 5 7 "
+	check_prio_pfc "0 0 0 0 0 0 0 0 "
+
+	dcb ets set dev $swp prio-tc all:0
+
+	check_prio_pg "0 0 0 0 0 0 0 0 "
+	check_prio_tc "0 0 0 0 0 0 0 0 "
+
+	dcb buffer set dev $swp prio-buffer 0:1 1:3 2:5 3:7 4:0 5:2 6:4 7:6 2>/dev/null
+	check_fail $? "prio2buffer accepted in DCB mode"
+
+	log_test "Configuring headroom through ETS"
+}
+
+test_mtu()
+{
+	local what=$1; shift
+	local buf0size_2
+	local buf0size
+
+	RET=0
+	buf0size=$(__check_buf_size 0 "> 0")
+
+	mtu_set $swp 3000
+	buf0size_2=$(__check_buf_size 0 "> $buf0size" "MTU 3000: ")
+	mtu_restore $swp
+
+	mtu_set $swp 6000
+	check_buf_size 0 "> $buf0size_2" "MTU 6000: "
+	mtu_restore $swp
+
+	check_buf_size 0 "== $buf0size"
+
+	log_test "${what}MTU impacts buffer size"
+}
+
+test_tc_mtu()
+{
+	# In TC mode, MTU still impacts the threshold below which a buffer is
+	# not permitted to go.
+
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
+	test_mtu "TC: "
+	tc qdisc delete dev $swp root
+}
+
+test_pfc()
+{
+	RET=0
+
+	dcb ets set dev $swp prio-tc all:0 5:1 6:2 7:3
+
+	local buf0size=$(get_buf_size 0)
+	local buf1size=$(get_buf_size 1)
+	local buf2size=$(get_buf_size 2)
+	local buf3size=$(get_buf_size 3)
+	check_buf_size 0 "> 0"
+	check_buf_size 1 "> 0"
+	check_buf_size 2 "> 0"
+	check_buf_size 3 "> 0"
+	check_buf_size 4 "== 0"
+	check_buf_size 5 "== 0"
+	check_buf_size 6 "== 0"
+	check_buf_size 7 "== 0"
+
+	log_test "Buffer size sans PFC"
+
+	RET=0
+
+	dcb pfc set dev $swp prio-pfc all:off 5:on 6:on 7:on delay 0
+
+	check_prio_pg "0 0 0 0 0 1 2 3 "
+	check_prio_pfc "0 0 0 0 0 1 1 1 "
+	check_buf_size 0 "== $buf0size"
+	check_buf_size 1 "> $buf1size"
+	check_buf_size 2 "> $buf2size"
+	check_buf_size 3 "> $buf3size"
+
+	local buf1size=$(get_buf_size 1)
+	check_buf_size 2 "== $buf1size"
+	check_buf_size 3 "== $buf1size"
+
+	log_test "PFC: Cable length 0"
+
+	RET=0
+
+	dcb pfc set dev $swp delay 1000
+
+	check_buf_size 0 "== $buf0size"
+	check_buf_size 1 "> $buf1size"
+	check_buf_size 2 "> $buf1size"
+	check_buf_size 3 "> $buf1size"
+
+	log_test "PFC: Cable length 1000"
+
+	RET=0
+
+	dcb pfc set dev $swp prio-pfc all:off delay 0
+	dcb ets set dev $swp prio-tc all:0
+
+	check_prio_pg "0 0 0 0 0 0 0 0 "
+	check_prio_tc "0 0 0 0 0 0 0 0 "
+	check_buf_size 0 "> 0"
+	check_buf_size 1 "== 0"
+	check_buf_size 2 "== 0"
+	check_buf_size 3 "== 0"
+	check_buf_size 4 "== 0"
+	check_buf_size 5 "== 0"
+	check_buf_size 6 "== 0"
+	check_buf_size 7 "== 0"
+
+	log_test "PFC: Restore defaults"
+}
+
+test_tc_priomap()
+{
+	RET=0
+
+	dcb ets set dev $swp prio-tc 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+	check_prio_pg "0 1 2 3 4 5 6 7 "
+
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
+	check_prio_pg "0 0 0 0 0 0 0 0 "
+
+	dcb buffer set dev $swp prio-buffer 0:1 1:3 2:5 3:7 4:0 5:2 6:4 7:6
+	check_prio_pg "1 3 5 7 0 2 4 6 "
+
+	tc qdisc delete dev $swp root
+	check_prio_pg "0 1 2 3 4 5 6 7 "
+
+	# Clean up.
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
+	dcb buffer set dev $swp prio-buffer all:0
+	tc qdisc delete dev $swp root
+	dcb ets set dev $swp prio-tc all:0
+
+	log_test "TC: priomap"
+}
+
+test_tc_sizes()
+{
+	local cell_size=$(devlink_cell_size_get)
+	local size=$((cell_size * 1000))
+
+	RET=0
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size 2>/dev/null
+	check_fail $? "buffer_size should fail before qdisc is added"
+
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size
+	check_err $? "buffer_size should pass after qdisc is added"
+	check_buf_size 0 "== $size" "set size: "
+
+	mtu_set $swp 6000
+	check_buf_size 0 "== $size" "set MTU: "
+	mtu_restore $swp
+
+	dcb buffer set dev $swp buffer-size all:0
+
+	# After replacing the qdisc for the same kind, buffer_size still has to
+	# work.
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1M
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size
+	check_buf_size 0 "== $size" "post replace, set size: "
+
+	dcb buffer set dev $swp buffer-size all:0
+
+	# Likewise after replacing for a different kind.
+	tc qdisc replace dev $swp root handle 2: prio bands 8
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size
+	check_buf_size 0 "== $size" "post replace different kind, set size: "
+
+	tc qdisc delete dev $swp root
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size 2>/dev/null
+	check_fail $? "buffer_size should fail after qdisc is deleted"
+
+	log_test "TC: buffer size"
+}
+
+test_int_buf()
+{
+	local what=$1; shift
+
+	RET=0
+
+	local buf0size=$(get_buf_size 0)
+	local tot_size=$(get_tot_size)
+
+	# Size of internal buffer and buffer 9.
+	local dsize=$((tot_size - buf0size))
+
+	tc qdisc add dev $swp clsact
+	tc filter add dev $swp egress matchall skip_sw action mirred egress mirror dev $swp
+
+	local buf0size_2=$(get_buf_size 0)
+	local tot_size_2=$(get_tot_size)
+	local dsize_2=$((tot_size_2 - buf0size_2))
+
+	# Egress SPAN should have added to the "invisible" buffer configuration.
+	((dsize_2 > dsize))
+	check_err $? "Invisible buffers account for '$dsize_2', expected '> $dsize'"
+
+	mtu_set $swp 3000
+
+	local buf0size_3=$(get_buf_size 0)
+	local tot_size_3=$(get_tot_size)
+	local dsize_3=$((tot_size_3 - buf0size_3))
+
+	# MTU change might change buffer 0, which will show at total, but the
+	# hidden buffers should stay the same size.
+	((dsize_3 == dsize_2))
+	check_err $? "MTU change: Invisible buffers account for '$dsize_3', expected '== $dsize_2'"
+
+	mtu_restore $swp
+	tc qdisc del dev $swp clsact
+
+	# After SPAN removal, hidden buffers should be back to the original sizes.
+	local buf0size_4=$(get_buf_size 0)
+	local tot_size_4=$(get_tot_size)
+	local dsize_4=$((tot_size_4 - buf0size_4))
+	((dsize_4 == dsize))
+	check_err $? "SPAN removed: Invisible buffers account for '$dsize_4', expected '== $dsize'"
+
+	log_test "${what}internal buffer size"
+}
+
+test_tc_int_buf()
+{
+	local cell_size=$(devlink_cell_size_get)
+	local size=$((cell_size * 1000))
+
+	tc qdisc replace dev $swp root handle 1: bfifo limit 1.5M
+	test_int_buf "TC: "
+
+	dcb buffer set dev $swp buffer-size all:0 0:$size
+	test_int_buf "TC+buffsize: "
+
+	dcb buffer set dev $swp buffer-size all:0
+	tc qdisc delete dev $swp root
+}
+
+bail_on_lldpad "configure DCB" "configure Qdiscs"
+
+trap cleanup EXIT
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
new file mode 100644
index 000000000000..5ad092b9bf10
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_lib.sh
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0
+
+check_rate()
+{
+	local rate=$1; shift
+	local min=$1; shift
+	local what=$1; shift
+
+	if ((rate > min)); then
+		return 0
+	fi
+
+	echo "$what $(humanize $ir) < $(humanize $min)" > /dev/stderr
+	return 1
+}
+
+measure_rate()
+{
+	local sw_in=$1; shift   # Where the traffic ingresses the switch
+	local host_in=$1; shift # Where it ingresses another host
+	local counter=$1; shift # Counter to use for measurement
+	local what=$1; shift
+
+	local interval=10
+	local i
+	local ret=0
+
+	# Dips in performance might cause momentary ingress rate to drop below
+	# 1Gbps. That wouldn't saturate egress and MC would thus get through,
+	# seemingly winning bandwidth on account of UC. Demand at least 2Gbps
+	# average ingress rate to somewhat mitigate this.
+	local min_ingress=2147483648
+
+	for i in {5..0}; do
+		local t0=$(ethtool_stats_get $host_in $counter)
+		local u0=$(ethtool_stats_get $sw_in $counter)
+		sleep $interval
+		local t1=$(ethtool_stats_get $host_in $counter)
+		local u1=$(ethtool_stats_get $sw_in $counter)
+
+		local ir=$(rate $u0 $u1 $interval)
+		local er=$(rate $t0 $t1 $interval)
+
+		if check_rate $ir $min_ingress "$what ingress rate"; then
+			break
+		fi
+
+		# Fail the test if we can't get the throughput.
+		if ((i == 0)); then
+			ret=1
+		fi
+	done
+
+	echo $ir $er
+	return $ret
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_max_descriptors.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_max_descriptors.sh
new file mode 100755
index 000000000000..a4a25637fe2a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_max_descriptors.sh
@@ -0,0 +1,243 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test sends many small packets (size is less than cell size) through the
+# switch. A shaper is used in $swp2, so the traffic is limited there. Packets
+# are queued till they will be sent.
+#
+# The idea is to verify that the switch can handle at least 85% of maximum
+# supported descrpitors by hardware. Then, we verify that the driver configures
+# firmware to allow infinite size of egress descriptor pool, and does not use a
+# lower limitation. Increase the size of the relevant pools such that the pool's
+# size does not limit the traffic.
+
+# +-----------------------+
+# | H1                    |
+# |   + $h1.111           |
+# |   | 192.0.2.33/28     |
+# |   |                   |
+# |   + $h1               |
+# +---|-------------------+
+#     |
+# +---|-----------------------------+
+# |   + $swp1                       |
+# |   | iPOOL1                      |
+# |   |                             |
+# | +-|------------------------+    |
+# | | + $swp1.111              |    |
+# | |                          |    |
+# | | BR1                      |    |
+# | |                          |    |
+# | | + $swp2.111              |    |
+# | +-|------------------------+    |
+# |   |                             |
+# |   + $swp2                       |
+# |   | ePOOL6                      |
+# |   | 1mbit                       |
+# +---+-----------------------------+
+#     |
+# +---|-------------------+
+# |   + $h2            H2 |
+# |   |                   |
+# |   + $h2.111           |
+# |     192.0.2.34/28     |
+# +-----------------------+
+#
+
+ALL_TESTS="
+	ping_ipv4
+	max_descriptors
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
+
+MAX_POOL_SIZE=$(devlink_pool_size_get)
+SHAPER_RATE=1mbit
+
+# The current TBF qdisc interface does not allow us to configure the shaper to
+# flat zero. The ASIC shaper is guaranteed to work with a granularity of
+# 200Mbps. On Spectrum-2, writing a value close to zero instead of zero works
+# well, but the performance on Spectrum-1 is unpredictable. Thus, do not run the
+# test on Spectrum-1.
+mlxsw_only_on_spectrum 2+ || exit
+
+h1_create()
+{
+	adf_simple_if_init $h1
+
+	vlan_create $h1 111 v$h1 192.0.2.33/28
+	defer vlan_destroy $h1 111
+	ip link set dev $h1.111 type vlan egress-qos-map 0:1
+}
+
+h2_create()
+{
+	adf_simple_if_init $h2
+
+	vlan_create $h2 111 v$h2 192.0.2.34/28
+	defer vlan_destroy $h2 111
+}
+
+switch_create()
+{
+	# pools
+	# -----
+	# devlink_pool_size_thtype_restore needs to be done first so that we can
+	# reset the various limits to values that are only valid for the
+	# original static / dynamic setting.
+
+	devlink_pool_size_thtype_save 1
+	devlink_pool_size_thtype_set 1 dynamic $MAX_POOL_SIZE
+	defer_prio devlink_pool_size_thtype_restore 1
+
+	devlink_pool_size_thtype_save 6
+	devlink_pool_size_thtype_set 6 static $MAX_POOL_SIZE
+	defer_prio devlink_pool_size_thtype_restore 6
+
+	# $swp1
+	# -----
+
+	ip link set dev $swp1 up
+	defer ip link set dev $swp1 down
+
+	vlan_create $swp1 111
+	defer vlan_destroy $swp1 111
+	ip link set dev $swp1.111 type vlan ingress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_save $swp1 1
+	devlink_port_pool_th_set $swp1 1 16
+	defer devlink_tc_bind_pool_th_restore $swp1 1 ingress
+
+	devlink_tc_bind_pool_th_save $swp1 1 ingress
+	devlink_tc_bind_pool_th_set $swp1 1 ingress 1 16
+	defer devlink_port_pool_th_restore $swp1 1
+
+	tc qdisc replace dev $swp1 root handle 1: \
+	   ets bands 8 strict 8 priomap 7 6
+	defer tc qdisc del dev $swp1 root
+
+	dcb buffer set dev $swp1 prio-buffer all:0 1:1
+	defer dcb buffer set dev $swp1 prio-buffer all:0
+
+	# $swp2
+	# -----
+
+	ip link set dev $swp2 up
+	defer ip link set dev $swp2 down
+
+	vlan_create $swp2 111
+	defer vlan_destroy $swp2 111
+	ip link set dev $swp2.111 type vlan egress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_save $swp2 6
+	devlink_port_pool_th_set $swp2 6 $MAX_POOL_SIZE
+	defer devlink_tc_bind_pool_th_restore $swp2 1 egress
+
+	devlink_tc_bind_pool_th_save $swp2 1 egress
+	devlink_tc_bind_pool_th_set $swp2 1 egress 6 $MAX_POOL_SIZE
+	defer devlink_port_pool_th_restore $swp2 6
+
+	tc qdisc replace dev $swp2 root handle 1: tbf rate $SHAPER_RATE \
+		burst 128K limit 500M
+	defer tc qdisc del dev $swp2 root
+
+	tc qdisc replace dev $swp2 parent 1:1 handle 11: \
+		ets bands 8 strict 8 priomap 7 6
+	defer tc qdisc del dev $swp2 parent 1:1 handle 11:
+
+	# bridge
+	# ------
+
+	ip link add name br1 type bridge vlan_filtering 0
+	defer ip link del dev br1
+
+	ip link set dev $swp1.111 master br1
+	defer ip link set dev $swp1.111 nomaster
+
+	ip link set dev br1 up
+	defer ip link set dev br1 down
+
+	ip link set dev $swp2.111 master br1
+	defer ip link set dev $swp2.111 nomaster
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h2mac=$(mac_get $h2)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.34 " h1->h2"
+}
+
+percentage_used()
+{
+	local num_packets=$1; shift
+	local max_packets=$1; shift
+
+	bc <<< "
+	    scale=2
+	    100 * $num_packets / $max_packets
+	"
+}
+
+max_descriptors()
+{
+	local cell_size=$(devlink_cell_size_get)
+	local exp_perc_used=85
+	local max_descriptors
+	local pktsize=30
+
+	RET=0
+
+	max_descriptors=$(mlxsw_max_descriptors_get) || exit 1
+
+	local d0=$(ethtool_stats_get $swp2 tc_no_buffer_discard_uc_tc_1)
+
+	log_info "Send many small packets, packet size = $pktsize bytes"
+	start_traffic_pktsize $pktsize $h1.111 192.0.2.33 192.0.2.34 $h2mac
+	defer stop_traffic $!
+
+	# Sleep to wait for congestion.
+	sleep 5
+
+	local d1=$(ethtool_stats_get $swp2 tc_no_buffer_discard_uc_tc_1)
+	((d1 == d0))
+	check_err $? "Drops seen on egress port: $d0 -> $d1 ($((d1 - d0)))"
+
+	# Check how many packets the switch can handle, the limitation is
+	# maximum descriptors.
+	local pkts_bytes=$(ethtool_stats_get $swp2 tc_transmit_queue_tc_1)
+	local pkts_num=$((pkts_bytes / cell_size))
+	local perc_used=$(percentage_used $pkts_num $max_descriptors)
+
+	check_err $(bc <<< "$perc_used < $exp_perc_used") \
+		"Expected > $exp_perc_used% of descriptors, handle $perc_used%"
+
+	log_test "Maximum descriptors usage. The percentage used is $perc_used%"
+}
+
+trap cleanup EXIT
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh
new file mode 100755
index 000000000000..d8f8ae8533cd
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_mc_aware.sh
@@ -0,0 +1,330 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# A test for switch behavior under MC overload. An issue in Spectrum chips
+# causes throughput of UC traffic to drop severely when a switch is under heavy
+# MC load. This issue can be overcome by putting the switch to MC-aware mode.
+# This test verifies that UC performance stays intact even as the switch is
+# under MC flood, and therefore that the MC-aware mode is enabled and correctly
+# configured.
+#
+# Because mlxsw throttles CPU port, the traffic can't actually reach userspace
+# at full speed. That makes it impossible to use iperf3 to simply measure the
+# throughput, because many packets (that reach $h3) don't get to the kernel at
+# all even in UDP mode (the situation is even worse in TCP mode, where one can't
+# hope to see more than a couple Mbps).
+#
+# So instead we send traffic with mausezahn and use RX ethtool counters at $h3.
+# Multicast traffic is untagged, unicast traffic is tagged with PCP 1. Therefore
+# each gets a different priority and we can use per-prio ethtool counters to
+# measure the throughput. In order to avoid prioritizing unicast traffic, prio
+# qdisc is installed on $swp3 and maps all priorities to the same band #7 (and
+# thus TC 0).
+#
+# Mausezahn can't actually saturate the links unless it's using large frames.
+# Thus we set MTU to 10K on all involved interfaces. Then both unicast and
+# multicast traffic uses 8K frames.
+#
+# +---------------------------+            +----------------------------------+
+# | H1                        |            |                               H2 |
+# |                           |            |  unicast --> + $h2.111           |
+# |                 multicast |            |  traffic     | 192.0.2.129/28    |
+# |                 traffic   |            |              | e-qos-map 0:1     |
+# |           $h1 + <-----    |            |              |                   |
+# | 192.0.2.65/28 |           |            |              + $h2               |
+# +---------------|-----------+            +--------------|-------------------+
+#                 |                                       |
+# +---------------|---------------------------------------|-------------------+
+# |         $swp1 +                                       + $swp2             |
+# |        >1Gbps |                                       | >1Gbps            |
+# | +-------------|------+                     +----------|----------------+  |
+# | |     $swp1.1 +      |                     |          + $swp2.111      |  |
+# | |                BR1 |             SW      | BR111                     |  |
+# | |     $swp3.1 +      |                     |          + $swp3.111      |  |
+# | +-------------|------+                     +----------|----------------+  |
+# |               \_______________________________________/                   |
+# |                                    |                                      |
+# |                                    + $swp3                                |
+# |                                    | 1Gbps bottleneck                     |
+# |                                    | prio qdisc: {0..7} -> 7              |
+# +------------------------------------|--------------------------------------+
+#                                      |
+#                                   +--|-----------------+
+#                                   |  + $h3          H3 |
+#                                   |  | 192.0.2.66/28   |
+#                                   |  |                 |
+#                                   |  + $h3.111         |
+#                                   |    192.0.2.130/28  |
+#                                   +--------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_mc_aware
+	test_uc_aware
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source qos_lib.sh
+
+h1_create()
+{
+	adf_simple_if_init $h1 192.0.2.65/28
+
+	mtu_set $h1 10000
+	defer mtu_restore $h1
+}
+
+h2_create()
+{
+	adf_simple_if_init $h2
+
+	mtu_set $h2 10000
+	defer mtu_restore $h2
+
+	vlan_create $h2 111 v$h2 192.0.2.129/28
+	defer vlan_destroy $h2 111
+	ip link set dev $h2.111 type vlan egress-qos-map 0:1
+}
+
+h3_create()
+{
+	adf_simple_if_init $h3 192.0.2.66/28
+
+	mtu_set $h3 10000
+	defer mtu_restore $h3
+
+	vlan_create $h3 111 v$h3 192.0.2.130/28
+	defer vlan_destroy $h3 111
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	defer ip link set dev $swp1 down
+
+	mtu_set $swp1 10000
+	defer mtu_restore $swp1
+
+	ip link set dev $swp2 up
+	defer ip link set dev $swp2 down
+
+	mtu_set $swp2 10000
+	defer mtu_restore $swp2
+
+	ip link set dev $swp3 up
+	defer ip link set dev $swp3 down
+
+	mtu_set $swp3 10000
+	defer mtu_restore $swp3
+
+	vlan_create $swp2 111
+	defer vlan_destroy $swp2 111
+
+	vlan_create $swp3 111
+	defer vlan_destroy $swp3 111
+
+	tc qdisc replace dev $swp3 root handle 3: tbf rate 1gbit \
+		burst 128K limit 1G
+	defer tc qdisc del dev $swp3 root handle 3:
+
+	tc qdisc replace dev $swp3 parent 3:3 handle 33: \
+		prio bands 8 priomap 7 7 7 7 7 7 7 7
+	defer tc qdisc del dev $swp3 parent 3:3 handle 33:
+
+	ip link add name br1 type bridge vlan_filtering 0
+	defer ip link del dev br1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	defer ip link set dev $swp1 nomaster
+
+	ip link set dev $swp3 master br1
+	defer ip link set dev $swp3 nomaster
+
+	ip link add name br111 type bridge vlan_filtering 0
+	defer ip link del dev br111
+	ip link set dev br111 addrgenmode none
+	ip link set dev br111 up
+
+	ip link set dev $swp2.111 master br111
+	defer ip link set dev $swp2.111 nomaster
+
+	ip link set dev $swp3.111 master br111
+	defer ip link set dev $swp3.111 nomaster
+
+	# Make sure that ingress quotas are smaller than egress so that there is
+	# room for both streams of traffic to be admitted to shared buffer.
+	devlink_port_pool_th_save $swp1 0
+	devlink_port_pool_th_set $swp1 0 5
+	defer devlink_port_pool_th_restore $swp1 0
+
+	devlink_tc_bind_pool_th_save $swp1 0 ingress
+	devlink_tc_bind_pool_th_set $swp1 0 ingress 0 5
+	defer devlink_tc_bind_pool_th_restore $swp1 0 ingress
+
+	devlink_port_pool_th_save $swp2 0
+	devlink_port_pool_th_set $swp2 0 5
+	defer devlink_port_pool_th_restore $swp2 0
+
+	devlink_tc_bind_pool_th_save $swp2 1 ingress
+	devlink_tc_bind_pool_th_set $swp2 1 ingress 0 5
+	defer devlink_tc_bind_pool_th_restore $swp2 1 ingress
+
+	devlink_port_pool_th_save $swp3 4
+	devlink_port_pool_th_set $swp3 4 12
+	defer devlink_port_pool_th_restore $swp3 4
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	h3mac=$(mac_get $h3)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h2 192.0.2.130
+}
+
+__run_uc_measure_rate()
+{
+	local what=$1; shift
+	local -a uc_rate
+
+	start_traffic $h2.111 192.0.2.129 192.0.2.130 $h3mac
+	defer stop_traffic $!
+
+	uc_rate=($(measure_rate $swp2 $h3 rx_octets_prio_1 "$what"))
+	check_err $? "Could not get high enough $what ingress rate"
+
+	echo ${uc_rate[@]}
+}
+
+run_uc_measure_rate()
+{
+	in_defer_scope __run_uc_measure_rate "$@"
+}
+
+test_mc_aware()
+{
+	RET=0
+
+	local -a uc_rate=($(run_uc_measure_rate "UC-only"))
+	local ucth1=${uc_rate[1]}
+
+	start_traffic $h1 192.0.2.65 bc bc
+	defer stop_traffic $!
+
+	local d0=$(date +%s)
+	local t0=$(ethtool_stats_get $h3 rx_octets_prio_0)
+	local u0=$(ethtool_stats_get $swp1 rx_octets_prio_0)
+
+	local -a uc_rate_2=($(run_uc_measure_rate "UC+MC"))
+	local ucth2=${uc_rate_2[1]}
+
+	local d1=$(date +%s)
+	local t1=$(ethtool_stats_get $h3 rx_octets_prio_0)
+	local u1=$(ethtool_stats_get $swp1 rx_octets_prio_0)
+
+	local deg=$(bc <<< "
+			scale=2
+			ret = 100 * ($ucth1 - $ucth2) / $ucth1
+			if (ret > 0) { ret } else { 0 }
+		    ")
+
+	# Minimum shaper of 200Mbps on MC TCs should cause about 20% of
+	# degradation on 1Gbps link.
+	check_err $(bc <<< "$deg < 15") "Minimum shaper not in effect"
+	check_err $(bc <<< "$deg > 25") "MC traffic degrades UC performance too much"
+
+	local interval=$((d1 - d0))
+	local mc_ir=$(rate $u0 $u1 $interval)
+	local mc_er=$(rate $t0 $t1 $interval)
+
+	log_test "UC performance under MC overload"
+
+	echo "UC-only throughput  $(humanize $ucth1)"
+	echo "UC+MC throughput    $(humanize $ucth2)"
+	echo "Degradation         $deg %"
+	echo
+	echo "Full report:"
+	echo "  UC only:"
+	echo "    ingress UC throughput $(humanize ${uc_rate[0]})"
+	echo "    egress UC throughput  $(humanize ${uc_rate[1]})"
+	echo "  UC+MC:"
+	echo "    ingress UC throughput $(humanize ${uc_rate_2[0]})"
+	echo "    egress UC throughput  $(humanize ${uc_rate_2[1]})"
+	echo "    ingress MC throughput $(humanize $mc_ir)"
+	echo "    egress MC throughput  $(humanize $mc_er)"
+	echo
+}
+
+test_uc_aware()
+{
+	RET=0
+
+	start_traffic $h2.111 192.0.2.129 192.0.2.130 $h3mac
+	defer stop_traffic $!
+
+	local d0=$(date +%s)
+	local t0=$(ethtool_stats_get $h3 rx_octets_prio_1)
+	local u0=$(ethtool_stats_get $swp2 rx_octets_prio_1)
+	sleep 1
+
+	local attempts=50
+	local passes=0
+	local i
+
+	for ((i = 0; i < attempts; ++i)); do
+		if $ARPING -c 1 -I $h1 -b 192.0.2.66 -q -w 1; then
+			((passes++))
+		fi
+
+		sleep 0.1
+	done
+
+	local d1=$(date +%s)
+	local t1=$(ethtool_stats_get $h3 rx_octets_prio_1)
+	local u1=$(ethtool_stats_get $swp2 rx_octets_prio_1)
+
+	local interval=$((d1 - d0))
+	local uc_ir=$(rate $u0 $u1 $interval)
+	local uc_er=$(rate $t0 $t1 $interval)
+
+	((attempts == passes))
+	check_err $?
+
+	log_test "MC performance under UC overload"
+	echo "    ingress UC throughput $(humanize ${uc_ir})"
+	echo "    egress UC throughput  $(humanize ${uc_er})"
+	echo "    sent $attempts BC ARPs, got $passes responses"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh
new file mode 100755
index 000000000000..0f0f4f05807c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/qos_pfc.sh
@@ -0,0 +1,417 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test injects a 10-MB burst of traffic with VLAN tag and 802.1p priority
+# of 1. This stream is consistently prioritized as priority 1, is put to PG
+# buffer 1, and scheduled at TC 1.
+#
+# - the stream first ingresses through $swp1, where it is forwarded to $swp3
+#
+# - then it ingresses through $swp4. Here it is put to a lossless buffer and put
+#   to a small pool ("PFC pool"). The traffic is forwarded to $swp2, which is
+#   shaped, and thus the PFC pool eventually fills, therefore the headroom
+#   fills, and $swp3 is paused.
+#
+# - since $swp3 now can't send traffic, the traffic ingressing $swp1 is kept at
+#   a pool ("overflow pool"). The overflow pool needs to be large enough to
+#   contain the whole burst.
+#
+# - eventually the PFC pool gets some traffic out, headroom therefore gets some
+#   traffic to the pool, and $swp3 is unpaused again. This way the traffic is
+#   gradually forwarded from the overflow pool, through the PFC pool, out of
+#   $swp2, and eventually to $h2.
+#
+# - if PFC works, all lossless flow packets that ingress through $swp1 should
+#   also be seen ingressing $h2. If it doesn't, there will be drops due to
+#   discrepancy between the speeds of $swp1 and $h2.
+#
+# - it should all play out relatively quickly, so that SLL and HLL will not
+#   cause drops.
+#
+# +-----------------------+
+# | H1                    |
+# |   + $h1.111           |
+# |   | 192.0.2.33/28     |
+# |   |                   |
+# |   + $h1               |
+# +---|-------------------+  +--------------------+
+#     |                      |                    |
+# +---|----------------------|--------------------|---------------------------+
+# |   + $swp1          $swp3 +                    + $swp4                     |
+# |   | iPOOL1        iPOOL0 |                    | iPOOL2                    |
+# |   | ePOOL4        ePOOL5 |                    | ePOOL4                    |
+# |   |        PFC:enabled=1 |                    | PFC:enabled=1             |
+# | +-|----------------------|-+                +-|------------------------+  |
+# | | + $swp1.111  $swp3.111 + |                | + $swp4.111              |  |
+# | |                          |                |                          |  |
+# | | BR1                      |                | BR2                      |  |
+# | |                          |                |                          |  |
+# | |                          |                |         + $swp2.111      |  |
+# | +--------------------------+                +---------|----------------+  |
+# |                                                       |                   |
+# | iPOOL0: 500KB dynamic                                 |                   |
+# | iPOOL1: 10MB static                                   |                   |
+# | iPOOL2: 1MB static                                    + $swp2             |
+# | ePOOL4: 500KB dynamic                                 | iPOOL0            |
+# | ePOOL5: 10MB static                                   | ePOOL6            |
+# | ePOOL6: "infinite" static                             | 200Mbps shaper    |
+# +-------------------------------------------------------|-------------------+
+#                                                         |
+#                                                     +---|-------------------+
+#                                                     |   + $h2            H2 |
+#                                                     |   |                   |
+#                                                     |   + $h2.111           |
+#                                                     |     192.0.2.34/28     |
+#                                                     +-----------------------+
+#
+# iPOOL0+ePOOL4 is a helper pool for control traffic etc.
+# iPOOL1+ePOOL5 are overflow pools.
+# iPOOL2+ePOOL6 are PFC pools.
+
+ALL_TESTS="
+	ping_ipv4
+	test_qos_pfc
+"
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+_1KB=1000
+_100KB=$((100 * _1KB))
+_500KB=$((500 * _1KB))
+_1MB=$((1000 * _1KB))
+_10MB=$((10 * _1MB))
+
+h1_create()
+{
+	simple_if_init $h1
+	mtu_set $h1 10000
+
+	vlan_create $h1 111 v$h1 192.0.2.33/28
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 111
+
+	mtu_restore $h1
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	mtu_set $h2 10000
+
+	vlan_create $h2 111 v$h2 192.0.2.34/28
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 111
+
+	mtu_restore $h2
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	local lanes_swp4
+	local pg1_size
+
+	# pools
+	# -----
+
+	devlink_pool_size_thtype_save 0
+	devlink_pool_size_thtype_save 4
+	devlink_pool_size_thtype_save 1
+	devlink_pool_size_thtype_save 5
+	devlink_pool_size_thtype_save 2
+	devlink_pool_size_thtype_save 6
+
+	devlink_port_pool_th_save $swp1 1
+	devlink_port_pool_th_save $swp2 6
+	devlink_port_pool_th_save $swp3 5
+	devlink_port_pool_th_save $swp4 2
+
+	devlink_tc_bind_pool_th_save $swp1 1 ingress
+	devlink_tc_bind_pool_th_save $swp2 1 egress
+	devlink_tc_bind_pool_th_save $swp3 1 egress
+	devlink_tc_bind_pool_th_save $swp4 1 ingress
+
+	# Control traffic pools. Just reduce the size. Keep them dynamic so that
+	# we don't need to change all the uninteresting quotas.
+	devlink_pool_size_thtype_set 0 dynamic $_500KB
+	devlink_pool_size_thtype_set 4 dynamic $_500KB
+
+	# Overflow pools.
+	devlink_pool_size_thtype_set 1 static $_10MB
+	devlink_pool_size_thtype_set 5 static $_10MB
+
+	# PFC pools. As per the writ, the size of egress PFC pool should be
+	# infinice, but actually it just needs to be large enough to not matter
+	# in practice, so reuse the 10MB limit.
+	devlink_pool_size_thtype_set 2 static $_1MB
+	devlink_pool_size_thtype_set 6 static $_10MB
+
+	# $swp1
+	# -----
+
+	ip link set dev $swp1 up
+	mtu_set $swp1 10000
+	vlan_create $swp1 111
+	ip link set dev $swp1.111 type vlan ingress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_set $swp1 1 $_10MB
+	devlink_tc_bind_pool_th_set $swp1 1 ingress 1 $_10MB
+
+	# Configure qdisc so that we can configure PG and therefore pool
+	# assignment.
+	tc qdisc replace dev $swp1 root handle 1: \
+	   ets bands 8 strict 8 priomap 7 6
+	dcb buffer set dev $swp1 prio-buffer all:0 1:1
+
+	# $swp2
+	# -----
+
+	ip link set dev $swp2 up
+	mtu_set $swp2 10000
+	vlan_create $swp2 111
+	ip link set dev $swp2.111 type vlan egress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_set $swp2 6 $_10MB
+	devlink_tc_bind_pool_th_set $swp2 1 egress 6 $_10MB
+
+	# prio 0->TC0 (band 7), 1->TC1 (band 6). TC1 is shaped.
+	tc qdisc replace dev $swp2 root handle 1: \
+	   ets bands 8 strict 8 priomap 7 6
+	tc qdisc replace dev $swp2 parent 1:7 handle 17: \
+	   tbf rate 200Mbit burst 131072 limit 1M
+
+	# $swp3
+	# -----
+
+	ip link set dev $swp3 up
+	mtu_set $swp3 10000
+	vlan_create $swp3 111
+	ip link set dev $swp3.111 type vlan egress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_set $swp3 5 $_10MB
+	devlink_tc_bind_pool_th_set $swp3 1 egress 5 $_10MB
+
+	# prio 0->TC0 (band 7), 1->TC1 (band 6)
+	tc qdisc replace dev $swp3 root handle 1: \
+	   ets bands 8 strict 8 priomap 7 6
+
+	# Need to enable PFC so that PAUSE takes effect. Therefore need to put
+	# the lossless prio into a buffer of its own. Don't bother with buffer
+	# sizes though, there is not going to be any pressure in the "backward"
+	# direction.
+	dcb buffer set dev $swp3 prio-buffer all:0 1:1
+	dcb pfc set dev $swp3 prio-pfc all:off 1:on
+
+	# $swp4
+	# -----
+
+	ip link set dev $swp4 up
+	mtu_set $swp4 10000
+	vlan_create $swp4 111
+	ip link set dev $swp4.111 type vlan ingress-qos-map 0:0 1:1
+
+	devlink_port_pool_th_set $swp4 2 $_1MB
+	devlink_tc_bind_pool_th_set $swp4 1 ingress 2 $_1MB
+
+	# Configure qdisc so that we can hand-tune headroom.
+	tc qdisc replace dev $swp4 root handle 1: \
+	   ets bands 8 strict 8 priomap 7 6
+	dcb buffer set dev $swp4 prio-buffer all:0 1:1
+	dcb pfc set dev $swp4 prio-pfc all:off 1:on
+	# PG0 will get autoconfigured to Xoff, give PG1 arbitrarily 100K, which
+	# is (-2*MTU) about 80K of delay provision.
+	pg1_size=$_100KB
+
+	setup_wait_dev_with_timeout $swp4
+
+	lanes_swp4=$(ethtool $swp4 | grep 'Lanes:')
+	lanes_swp4=${lanes_swp4#*"Lanes: "}
+
+	# 8-lane ports use two buffers among which the configured buffer
+	# is split, so double the size to get twice (20K + 80K).
+	if [[ $lanes_swp4 -eq 8 ]]; then
+		pg1_size=$((pg1_size * 2))
+	fi
+
+	dcb buffer set dev $swp4 buffer-size all:0 1:$pg1_size
+
+	# bridges
+	# -------
+
+	ip link add name br1 type bridge vlan_filtering 0
+	ip link set dev $swp1.111 master br1
+	ip link set dev $swp3.111 master br1
+	ip link set dev br1 up
+
+	ip link add name br2 type bridge vlan_filtering 0
+	ip link set dev $swp2.111 master br2
+	ip link set dev $swp4.111 master br2
+	ip link set dev br2 up
+}
+
+switch_destroy()
+{
+	# Do this first so that we can reset the limits to values that are only
+	# valid for the original static / dynamic setting.
+	devlink_pool_size_thtype_restore 6
+	devlink_pool_size_thtype_restore 5
+	devlink_pool_size_thtype_restore 4
+	devlink_pool_size_thtype_restore 2
+	devlink_pool_size_thtype_restore 1
+	devlink_pool_size_thtype_restore 0
+
+	# bridges
+	# -------
+
+	ip link set dev br2 down
+	ip link set dev $swp4.111 nomaster
+	ip link set dev $swp2.111 nomaster
+	ip link del dev br2
+
+	ip link set dev br1 down
+	ip link set dev $swp3.111 nomaster
+	ip link set dev $swp1.111 nomaster
+	ip link del dev br1
+
+	# $swp4
+	# -----
+
+	dcb buffer set dev $swp4 buffer-size all:0
+	dcb pfc set dev $swp4 prio-pfc all:off
+	dcb buffer set dev $swp4 prio-buffer all:0
+	tc qdisc del dev $swp4 root
+
+	devlink_tc_bind_pool_th_restore $swp4 1 ingress
+	devlink_port_pool_th_restore $swp4 2
+
+	vlan_destroy $swp4 111
+	mtu_restore $swp4
+	ip link set dev $swp4 down
+
+	# $swp3
+	# -----
+
+	dcb pfc set dev $swp3 prio-pfc all:off
+	dcb buffer set dev $swp3 prio-buffer all:0
+	tc qdisc del dev $swp3 root
+
+	devlink_tc_bind_pool_th_restore $swp3 1 egress
+	devlink_port_pool_th_restore $swp3 5
+
+	vlan_destroy $swp3 111
+	mtu_restore $swp3
+	ip link set dev $swp3 down
+
+	# $swp2
+	# -----
+
+	tc qdisc del dev $swp2 parent 1:7
+	tc qdisc del dev $swp2 root
+
+	devlink_tc_bind_pool_th_restore $swp2 1 egress
+	devlink_port_pool_th_restore $swp2 6
+
+	vlan_destroy $swp2 111
+	mtu_restore $swp2
+	ip link set dev $swp2 down
+
+	# $swp1
+	# -----
+
+	dcb buffer set dev $swp1 prio-buffer all:0
+	tc qdisc del dev $swp1 root
+
+	devlink_tc_bind_pool_th_restore $swp1 1 ingress
+	devlink_port_pool_th_restore $swp1 1
+
+	vlan_destroy $swp1 111
+	mtu_restore $swp1
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	swp4=${NETIFS[p6]}
+
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.34
+}
+
+test_qos_pfc()
+{
+	RET=0
+
+	# 10M pool, each packet is 8K of payload + headers
+	local pkts=$((_10MB / 8050))
+	local size=$((pkts * 8050))
+	local in0=$(ethtool_stats_get $swp1 rx_octets_prio_1)
+	local out0=$(ethtool_stats_get $swp2 tx_octets_prio_1)
+
+	$MZ $h1 -p 8000 -Q 1:111 -A 192.0.2.33 -B 192.0.2.34 \
+		-a own -b $h2mac -c $pkts -t udp -q
+	sleep 2
+
+	local in1=$(ethtool_stats_get $swp1 rx_octets_prio_1)
+	local out1=$(ethtool_stats_get $swp2 tx_octets_prio_1)
+
+	local din=$((in1 - in0))
+	local dout=$((out1 - out0))
+
+	local pct_in=$((din * 100 / size))
+
+	((pct_in > 95 && pct_in < 105))
+	check_err $? "Relative ingress out of expected bounds, $pct_in% should be 100%"
+
+	((dout == din))
+	check_err $? "$((din - dout)) bytes out of $din ingressed got lost"
+
+	log_test "PFC"
+}
+
+bail_on_lldpad "configure DCB" "configure Qdiscs"
+
+trap cleanup EXIT
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_bridge.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_bridge.sh
new file mode 100755
index 000000000000..4a11bf1d514a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_bridge.sh
@@ -0,0 +1,184 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	bridge_rif_add
+	bridge_rif_nomaster
+	bridge_rif_remaster
+	bridge_rif_nomaster_addr
+	bridge_rif_nomaster_port
+	bridge_rif_remaster_port
+"
+
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	team_create lag1 lacp
+	ip link set dev lag1 addrgenmode none
+	ip link set dev lag1 address $(mac_get $swp1)
+
+	team_create lag2 lacp
+	ip link set dev lag2 addrgenmode none
+	ip link set dev lag2 address $(mac_get $swp2)
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 address $(mac_get lag1)
+	ip link set dev br1 up
+
+	ip link set dev lag1 master br1
+
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master lag2
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp2 down
+
+	ip link set dev $swp1 nomaster
+	ip link set dev $swp1 down
+
+	ip link del dev lag2
+	ip link set dev lag1 nomaster
+	ip link del dev lag1
+
+	ip link del dev br1
+}
+
+bridge_rif_add()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	__addr_add_del br1 add 192.0.2.2/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIF for bridge on address addition"
+}
+
+bridge_rif_nomaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev lag1 nomaster
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 - 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Drop RIF for bridge on LAG deslavement"
+}
+
+bridge_rif_remaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev lag1 master br1
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIF for bridge on LAG reenslavement"
+}
+
+bridge_rif_nomaster_addr()
+{
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+
+	# Adding an address while the LAG is enslaved shouldn't generate a RIF.
+	__addr_add_del lag1 add 192.0.2.65/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "After adding IP: Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	# Removing the LAG from the bridge should drop RIF for the bridge (as
+	# tested in bridge_rif_lag_nomaster), but since the LAG now has an
+	# address, it should gain a RIF.
+	ip link set dev lag1 nomaster
+	sleep 1
+	local rifs_occ_t2=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0))
+
+	((expected_rifs == rifs_occ_t2))
+	check_err $? "After deslaving: Expected $expected_rifs RIFs, $rifs_occ_t2 are used"
+
+	log_test "Add RIF for LAG on deslavement from bridge"
+
+	__addr_add_del lag1 del 192.0.2.65/28
+	ip link set dev lag1 master br1
+	sleep 1
+}
+
+bridge_rif_nomaster_port()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 nomaster
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 - 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Drop RIF for bridge on deslavement of port from LAG"
+}
+
+bridge_rif_remaster_port()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+	setup_wait_dev $swp1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIF for bridge on reenslavement of port to LAG"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh
new file mode 100644
index 000000000000..a43a9926e690
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: GPL-2.0
+
+RIF_COUNTER_NUM_NETIFS=2
+
+rif_counter_addr4()
+{
+	local i=$1; shift
+	local p=$1; shift
+
+	printf 192.0.%d.%d $((i / 64)) $(((4 * i % 256) + p))
+}
+
+rif_counter_addr4pfx()
+{
+	rif_counter_addr4 $@
+	printf /30
+}
+
+rif_counter_h1_create()
+{
+	simple_if_init $h1
+}
+
+rif_counter_h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+rif_counter_h2_create()
+{
+	simple_if_init $h2
+}
+
+rif_counter_h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+rif_counter_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	vrf_prepare
+
+	rif_counter_h1_create
+	rif_counter_h2_create
+}
+
+rif_counter_cleanup()
+{
+	local count=$1; shift
+
+	pre_cleanup
+
+	for ((i = 1; i <= count; i++)); do
+		vlan_destroy $h2 $i
+	done
+
+	rif_counter_h2_destroy
+	rif_counter_h1_destroy
+
+	vrf_cleanup
+
+	if [[ -v RIF_COUNTER_BATCH_FILE ]]; then
+		rm -f $RIF_COUNTER_BATCH_FILE
+	fi
+}
+
+
+rif_counter_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	RIF_COUNTER_BATCH_FILE="$(mktemp)"
+
+	for ((i = 1; i <= count; i++)); do
+		vlan_create $h2 $i v$h2 $(rif_counter_addr4pfx $i 2)
+	done
+	for ((i = 1; i <= count; i++)); do
+		cat >> $RIF_COUNTER_BATCH_FILE <<-EOF
+			stats set dev $h2.$i l3_stats on
+		EOF
+	done
+
+	ip -b $RIF_COUNTER_BATCH_FILE
+	check_err_fail $should_fail $? "RIF counter enablement"
+}
+
+rif_counter_traffic_test()
+{
+	local count=$1; shift
+	local i;
+
+	for ((i = count; i > 0; i /= 2)); do
+		$MZ $h1 -Q $i -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \
+		    -A $(rif_counter_addr4 $i 1) \
+		    -B $(rif_counter_addr4 $i 2) \
+		    -q -t udp sp=54321,dp=12345
+	done
+	for ((i = count; i > 0; i /= 2)); do
+		busywait "$TC_HIT_TIMEOUT" until_counter_is "== 1" \
+			 hw_stats_get l3_stats $h2.$i rx packets > /dev/null
+		check_err $? "Traffic not seen at RIF $h2.$i"
+	done
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_lag.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_lag.sh
new file mode 100755
index 000000000000..b8bbe94f4736
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_lag.sh
@@ -0,0 +1,137 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	lag_rif_add
+	lag_rif_nomaster
+	lag_rif_remaster
+	lag_rif_nomaster_addr
+"
+
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	team_create lag1 lacp
+	ip link set dev lag1 addrgenmode none
+	ip link set dev lag1 address $(mac_get $swp1)
+
+	team_create lag2 lacp
+	ip link set dev lag2 addrgenmode none
+	ip link set dev lag2 address $(mac_get $swp2)
+
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master lag2
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp2 down
+
+	ip link set dev $swp1 nomaster
+	ip link set dev $swp1 down
+
+	ip link del dev lag2
+	ip link del dev lag1
+}
+
+lag_rif_add()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	__addr_add_del lag1 add 192.0.2.2/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIF for LAG on address addition"
+}
+
+lag_rif_nomaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 nomaster
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 - 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Drop RIF for LAG on port deslavement"
+}
+
+lag_rif_remaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+	setup_wait_dev $swp1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 1))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIF for LAG on port reenslavement"
+}
+
+lag_rif_nomaster_addr()
+{
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+
+	# Adding an address while the port is LAG'd shouldn't generate a RIF.
+	__addr_add_del $swp1 add 192.0.2.65/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "After adding IP: Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	# Removing the port from LAG should drop RIF for the LAG (as tested in
+	# lag_rif_nomaster), but since the port now has an address, it should
+	# gain a RIF.
+	ip link set dev $swp1 nomaster
+	sleep 1
+	local rifs_occ_t2=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0))
+
+	((expected_rifs == rifs_occ_t2))
+	check_err $? "After deslaving: Expected $expected_rifs RIFs, $rifs_occ_t2 are used"
+
+	__addr_add_del $swp1 del 192.0.2.65/28
+	log_test "Add RIF for port on deslavement from LAG"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_lag_vlan.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_lag_vlan.sh
new file mode 100755
index 000000000000..d1a9d379eaf3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_lag_vlan.sh
@@ -0,0 +1,147 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	lag_rif_add
+	lag_rif_nomaster
+	lag_rif_remaster
+	lag_rif_nomaster_addr
+"
+
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	team_create lag1 lacp
+	ip link set dev lag1 addrgenmode none
+	ip link set dev lag1 address $(mac_get $swp1)
+
+	team_create lag2 lacp
+	ip link set dev lag2 addrgenmode none
+	ip link set dev lag2 address $(mac_get $swp2)
+
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master lag2
+	ip link set dev $swp2 up
+
+	vlan_create lag1 100
+	ip link set dev lag1.100 addrgenmode none
+
+	vlan_create lag1 200
+	ip link set dev lag1.200 addrgenmode none
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link del dev lag1.200
+	ip link del dev lag1.100
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp2 down
+
+	ip link set dev $swp1 nomaster
+	ip link set dev $swp1 down
+
+	ip link del dev lag2
+	ip link del dev lag1
+}
+
+lag_rif_add()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	__addr_add_del lag1.100 add 192.0.2.2/28
+	__addr_add_del lag1.200 add 192.0.2.18/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 2))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIFs for LAG VLANs on address addition"
+}
+
+lag_rif_nomaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 nomaster
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 - 2))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Drop RIFs for LAG VLANs on port deslavement"
+}
+
+lag_rif_remaster()
+{
+	RET=0
+
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+	ip link set dev $swp1 down
+	ip link set dev $swp1 master lag1
+	ip link set dev $swp1 up
+	setup_wait_dev $swp1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 + 2))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	log_test "Add RIFs for LAG VLANs on port reenslavement"
+}
+
+lag_rif_nomaster_addr()
+{
+	local rifs_occ_t0=$(devlink_resource_occ_get rifs)
+
+	# Adding an address while the port is LAG'd shouldn't generate a RIF.
+	__addr_add_del $swp1 add 192.0.2.65/28
+	sleep 1
+	local rifs_occ_t1=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0))
+
+	((expected_rifs == rifs_occ_t1))
+	check_err $? "After adding IP: Expected $expected_rifs RIFs, $rifs_occ_t1 are used"
+
+	# Removing the port from LAG should drop two RIFs for the LAG VLANs (as
+	# tested in lag_rif_nomaster), but since the port now has an address, it
+	# should gain a RIF.
+	ip link set dev $swp1 nomaster
+	sleep 1
+	local rifs_occ_t2=$(devlink_resource_occ_get rifs)
+	local expected_rifs=$((rifs_occ_t0 - 1))
+
+	((expected_rifs == rifs_occ_t2))
+	check_err $? "After deslaving: Expected $expected_rifs RIFs, $rifs_occ_t2 are used"
+
+	__addr_add_del $swp1 del 192.0.2.65/28
+	log_test "Add RIF for port on deslavement from LAG"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profile_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profile_scale.sh
new file mode 100644
index 000000000000..71e7681f15f6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profile_scale.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for RIF MAC profiles resource. The test adds VLAN netdevices according to
+# the maximum number of RIF MAC profiles, sets each of them with a random
+# MAC address, and checks that eventually the number of occupied RIF MAC
+# profiles equals the maximum number of RIF MAC profiles.
+
+
+RIF_MAC_PROFILE_NUM_NETIFS=2
+
+rif_mac_profiles_create()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+	local batch_file="$(mktemp)"
+
+	for ((i = 1; i <= count; i++)); do
+		vlan=$(( i*10 ))
+		m=$(( i*11 ))
+
+		cat >> $batch_file <<-EOF
+			link add link $h1 name $h1.$vlan \
+				address 00:$m:$m:$m:$m:$m type vlan id $vlan
+			address add 192.0.$m.1/24 dev $h1.$vlan
+		EOF
+	done
+
+	ip -b $batch_file &> /dev/null
+	check_err_fail $should_fail $? "RIF creation"
+
+	rm -f $batch_file
+}
+
+rif_mac_profile_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	rif_mac_profiles_create $count $should_fail
+
+	occ=$(devlink -j resource show $DEVLINK_DEV \
+	      | jq '.[][][] | select(.name=="rif_mac_profiles") |.["occ"]')
+
+	[[ $occ -eq $count ]]
+	check_err_fail $should_fail $? "Attempt to use $count profiles (actual result $occ)"
+}
+
+rif_mac_profile_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	# Disable IPv6 on the two interfaces to avoid IPv6 link-local addresses
+	# being generated and RIFs being created.
+	sysctl_set net.ipv6.conf.$h1.disable_ipv6 1
+	sysctl_set net.ipv6.conf.$h2.disable_ipv6 1
+
+	ip link set $h1 up
+	ip link set $h2 up
+}
+
+rif_mac_profile_cleanup()
+{
+	pre_cleanup
+
+	ip link set $h2 down
+	ip link set $h1 down
+
+	sysctl_restore net.ipv6.conf.$h2.disable_ipv6
+	sysctl_restore net.ipv6.conf.$h1.disable_ipv6
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles.sh
new file mode 100755
index 000000000000..c18340cee55d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles.sh
@@ -0,0 +1,213 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	mac_profile_test
+"
+NUM_NETIFS=4
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+	ip route add 198.51.100.0/24 vrf v$h1 nexthop via 192.0.2.2
+
+	tc qdisc add dev $h1 ingress
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 ingress
+
+	ip route del 198.51.100.0/24 vrf v$h1
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24
+	ip route add 192.0.2.0/24 vrf v$h2 nexthop via 198.51.100.2
+
+	tc qdisc add dev $h2 ingress
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 ingress
+
+	ip route del 192.0.2.0/24 vrf v$h2
+	simple_if_fini $h2 198.51.100.1/24
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp1 clsact
+	tc qdisc add dev $rp2 clsact
+	ip address add 192.0.2.2/24 dev $rp1
+	ip address add 198.51.100.2/24 dev $rp2
+}
+
+router_destroy()
+{
+	ip address del 198.51.100.2/24 dev $rp2
+	ip address del 192.0.2.2/24 dev $rp1
+	tc qdisc del dev $rp2 clsact
+	tc qdisc del dev $rp1 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+h1_to_h2()
+{
+	local test_name=$@; shift
+	local smac=$(mac_get $rp2)
+
+	RET=0
+
+	# Replace neighbour to avoid first packet being forwarded in software
+	ip neigh replace dev $rp2 198.51.100.1 lladdr $(mac_get $h2)
+
+	# Add a filter to ensure that packets are forwarded in hardware. Cannot
+	# match on source MAC because it is not set in eACL after routing
+	tc filter add dev $rp2 egress proto ip pref 1 handle 101 \
+		flower skip_sw ip_proto udp src_port 12345 dst_port 54321 \
+		action pass
+
+	# Add a filter to ensure that packets are received with the correct
+	# source MAC
+	tc filter add dev $h2 ingress proto ip pref 1 handle 101 \
+		flower skip_sw src_mac $smac ip_proto udp src_port 12345 \
+		dst_port 54321 action pass
+
+	$MZ $h1 -a own -b $(mac_get $rp1) -t udp "sp=12345,dp=54321" \
+		-A 192.0.2.1 -B 198.51.100.1 -c 10 -p 100 -d 1msec -q
+
+	tc_check_packets "dev $rp2 egress" 101 10
+	check_err $? "packets not forwarded in hardware"
+
+	tc_check_packets "dev $h2 ingress" 101 10
+	check_err $? "packets not forwarded with correct source mac"
+
+	log_test "h1->h2: $test_name"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+	ip neigh del dev $rp2 198.51.100.1 lladdr $(mac_get $h2)
+}
+
+h2_to_h1()
+{
+	local test_name=$@; shift
+	local rp1_mac=$(mac_get $rp1)
+
+	RET=0
+
+	ip neigh replace dev $rp1 192.0.2.1 lladdr $(mac_get $h1)
+
+	tc filter add dev $rp1 egress proto ip pref 1 handle 101 \
+		flower skip_sw ip_proto udp src_port 54321 dst_port 12345 \
+		action pass
+
+	tc filter add dev $h1 ingress proto ip pref 1 handle 101 \
+		flower skip_sw src_mac $rp1_mac ip_proto udp src_port 54321 \
+		dst_port 12345 action pass
+
+	$MZ $h2 -a own -b $(mac_get $rp2) -t udp "sp=54321,dp=12345" \
+		-A 198.51.100.1 -B 192.0.2.1 -c 10 -p 100 -d 1msec -q
+
+	tc_check_packets "dev $rp1 egress" 101 10
+	check_err $? "packets not forwarded in hardware"
+
+	tc_check_packets "dev $h1 ingress" 101 10
+	check_err $? "packets not forwarded with correct source mac"
+
+	log_test "h2->h1: $test_name"
+
+	tc filter del dev $h1 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $rp1 egress protocol ip pref 1 handle 101 flower
+	ip neigh del dev $rp1 192.0.2.1 lladdr $(mac_get $h1)
+}
+
+smac_test()
+{
+	local test_name=$@; shift
+
+	# Test that packets forwarded to $h2 via $rp2 are forwarded with the
+	# current source MAC of $rp2
+	h1_to_h2 $test_name
+
+	# Test that packets forwarded to $h1 via $rp1 are forwarded with the
+	# current source MAC of $rp1. This MAC is never changed during the test,
+	# but given the shared nature of MAC profile, the point is to see that
+	# changes to the MAC of $rp2 do not affect that of $rp1
+	h2_to_h1 $test_name
+}
+
+mac_profile_test()
+{
+	local rp2_mac=$(mac_get $rp2)
+
+	# Test behavior when the RIF backing $rp2 is transitioned to use
+	# a new MAC profile
+	ip link set dev $rp2 addr 00:11:22:33:44:55
+	smac_test "new mac profile"
+
+	# Test behavior when the MAC profile used by the RIF is edited
+	ip link set dev $rp2 address 00:22:22:22:22:22
+	smac_test "edit mac profile"
+
+	# Restore original MAC
+	ip link set dev $rp2 addr $rp2_mac
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+mac_profiles=$(devlink_resource_size_get rif_mac_profiles)
+if [[ $mac_profiles -ne 1 ]]; then
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh
new file mode 100755
index 000000000000..026a126f584d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_mac_profiles_occ.sh
@@ -0,0 +1,147 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	rif_mac_profile_edit_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	# Disable IPv6 on the two interfaces to avoid IPv6 link-local addresses
+	# being generated and RIFs being created
+	sysctl_set net.ipv6.conf.$h1.disable_ipv6 1
+	sysctl_set net.ipv6.conf.$h2.disable_ipv6 1
+
+	ip link set $h1 up
+	ip link set $h2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set $h2 down
+	ip link set $h1 down
+
+	sysctl_restore net.ipv6.conf.$h2.disable_ipv6
+	sysctl_restore net.ipv6.conf.$h1.disable_ipv6
+
+	# Reload in order to clean all the RIFs and RIF MAC profiles created
+	devlink_reload
+}
+
+create_max_rif_mac_profiles()
+{
+	local count=$1; shift
+	local batch_file="$(mktemp)"
+
+	for ((i = 1; i <= count; i++)); do
+		vlan=$(( i*10 ))
+		m=$(( i*11 ))
+
+		cat >> $batch_file <<-EOF
+			link add link $h1 name $h1.$vlan \
+				address 00:$m:$m:$m:$m:$m type vlan id $vlan
+			address add 192.0.$m.1/24 dev $h1.$vlan
+		EOF
+	done
+
+	ip -b $batch_file &> /dev/null
+	rm -f $batch_file
+}
+
+rif_mac_profile_replacement_test()
+{
+	local h1_10_mac=$(mac_get $h1.10)
+
+	RET=0
+
+	ip link set $h1.10 address 00:12:34:56:78:99
+	check_err $?
+
+	log_test "RIF MAC profile replacement"
+
+	ip link set $h1.10 address $h1_10_mac
+}
+
+rif_mac_profile_consolidation_test()
+{
+	local count=$1; shift
+	local h1_20_mac
+
+	RET=0
+
+	if [[ $count -eq 1 ]]; then
+		return
+	fi
+
+	h1_20_mac=$(mac_get $h1.20)
+
+	# Set the MAC of $h1.20 to that of $h1.10 and confirm that they are
+	# using the same MAC profile.
+	ip link set $h1.20 address 00:11:11:11:11:11
+	check_err $?
+
+	occ=$(devlink -j resource show $DEVLINK_DEV \
+	      | jq '.[][][] | select(.name=="rif_mac_profiles") |.["occ"]')
+
+	[[ $occ -eq $((count - 1)) ]]
+	check_err $? "MAC profile occupancy did not decrease"
+
+	log_test "RIF MAC profile consolidation"
+
+	ip link set $h1.20 address $h1_20_mac
+}
+
+rif_mac_profile_shared_replacement_test()
+{
+	local count=$1; shift
+	local i=$((count + 1))
+	local vlan=$(( i*10 ))
+	local m=11
+
+	RET=0
+
+	# Create a VLAN netdevice that has the same MAC as the first one.
+	ip link add link $h1 name $h1.$vlan address 00:$m:$m:$m:$m:$m \
+		type vlan id $vlan
+	ip address add 192.0.$m.1/24 dev $h1.$vlan
+
+	# MAC replacement should fail because all the MAC profiles are in use
+	# and the profile is shared between multiple RIFs
+	m=$(( i*11 ))
+	ip link set $h1.$vlan address 00:$m:$m:$m:$m:$m &> /dev/null
+	check_fail $?
+
+	log_test "RIF MAC profile shared replacement"
+
+	ip link del dev $h1.$vlan
+}
+
+rif_mac_profile_edit_test()
+{
+	local count=$(devlink_resource_size_get rif_mac_profiles)
+
+	create_max_rif_mac_profiles $count
+
+	rif_mac_profile_replacement_test
+	rif_mac_profile_consolidation_test $count
+	rif_mac_profile_shared_replacement_test $count
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/router_bridge_lag.sh b/tools/testing/selftests/drivers/net/mlxsw/router_bridge_lag.sh
new file mode 100755
index 000000000000..6ce317cfaf9b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/router_bridge_lag.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test enslavement to LAG with a clean slate.
+# See $lib_dir/router_bridge_lag.sh for further details.
+
+ALL_TESTS="
+	config_devlink_reload
+	config_enslave_h1
+	config_enslave_h2
+	config_enslave_h3
+	config_enslave_h4
+	config_enslave_swp1
+	config_enslave_swp2
+	config_enslave_swp3
+	config_enslave_swp4
+	config_wait
+	ping_ipv4
+	ping_ipv6
+"
+
+config_devlink_reload()
+{
+	log_info "Devlink reload"
+	devlink_reload
+}
+
+config_enslave_h1()
+{
+	config_enslave $h1 lag1
+}
+
+config_enslave_h2()
+{
+	config_enslave $h2 lag4
+}
+
+config_enslave_h3()
+{
+	config_enslave $h3 lag4
+}
+
+config_enslave_h4()
+{
+	config_enslave $h4 lag1
+}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+EXTRA_SOURCE="source $lib_dir/devlink_lib.sh"
+source $lib_dir/router_bridge_lag.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
new file mode 100644
index 000000000000..683759d29199
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/router_scale.sh
@@ -0,0 +1,142 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ROUTER_NUM_NETIFS=4
+: ${TIMEOUT:=20000} # ms
+
+router_h1_create()
+{
+	simple_if_init $h1 192.0.1.1/24
+}
+
+router_h1_destroy()
+{
+	simple_if_fini $h1 192.0.1.1/24
+}
+
+router_h2_create()
+{
+	simple_if_init $h2 192.0.2.1/24
+	tc qdisc add dev $h2 handle ffff: ingress
+}
+
+router_h2_destroy()
+{
+	tc qdisc del dev $h2 handle ffff: ingress
+	simple_if_fini $h2 192.0.2.1/24
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	ip address add 192.0.1.2/24 dev $rp1
+	ip address add 192.0.2.2/24 dev $rp2
+}
+
+router_destroy()
+{
+	ip address del 192.0.2.2/24 dev $rp2
+	ip address del 192.0.1.2/24 dev $rp1
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+router_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	rp1mac=$(mac_get $rp1)
+
+	vrf_prepare
+
+	router_h1_create
+	router_h2_create
+
+	router_create
+}
+
+wait_for_routes()
+{
+	local t0=$1; shift
+	local route_count=$1; shift
+
+	local t1=$(ip route | grep 'offload' | grep -v 'offload_failed' | wc -l)
+	local delta=$((t1 - t0))
+	echo $delta
+	[[ $delta -ge $route_count ]]
+}
+
+router_routes_create()
+{
+	local route_count=$1
+	local count=0
+
+	ROUTE_FILE="$(mktemp)"
+
+	for i in {0..255}
+	do
+		for j in {0..255}
+		do
+			for k in {0..255}
+			do
+				if [[ $count -eq $route_count ]]; then
+					break 3
+				fi
+
+				echo route add 193.${i}.${j}.${k}/32 dev $rp2 \
+					>> $ROUTE_FILE
+				((count++))
+			done
+		done
+	done
+
+	ip -b $ROUTE_FILE &> /dev/null
+}
+
+router_routes_destroy()
+{
+	if [[ -v ROUTE_FILE ]]; then
+		rm -f $ROUTE_FILE
+	fi
+}
+
+router_test()
+{
+	local route_count=$1
+	local should_fail=$2
+	local delta
+
+	RET=0
+
+	local t0=$(ip route | grep -o 'offload' | wc -l)
+	router_routes_create $route_count
+	delta=$(busywait "$TIMEOUT" wait_for_routes $t0 $route_count)
+
+	check_err_fail $should_fail $? "Offload routes: Expected $route_count, got $delta."
+	if [[ $RET -ne 0 ]] || [[ $should_fail -eq 1 ]]; then
+		return
+	fi
+
+	router_routes_destroy
+}
+
+router_cleanup()
+{
+	pre_cleanup
+
+	router_routes_destroy
+	router_destroy
+
+	router_h2_destroy
+	router_h1_destroy
+
+	vrf_cleanup
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
new file mode 100755
index 000000000000..45a569618424
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rtnetlink.sh
@@ -0,0 +1,935 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test various interface configuration scenarios. Observe that configurations
+# deemed valid by mlxsw succeed, invalid configurations fail and that no traces
+# are produced. To prevent the test from passing in case traces are produced,
+# the user can set the 'kernel.panic_on_warn' and 'kernel.panic_on_oops'
+# sysctls in its environment.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	rif_vrf_set_addr_test
+	rif_non_inherit_bridge_addr_test
+	vlan_interface_deletion_test
+	bridge_deletion_test
+	bridge_vlan_flags_test
+	vlan_1_test
+	duplicate_vlans_test
+	vlan_rif_refcount_test
+	subport_rif_refcount_test
+	subport_rif_lag_join_test
+	vlan_dev_deletion_test
+	lag_unlink_slaves_test
+	lag_dev_deletion_test
+	vlan_interface_uppers_test
+	bridge_extern_learn_test
+	neigh_offload_test
+	nexthop_offload_test
+	nexthop_obj_invalid_test
+	nexthop_obj_offload_test
+	nexthop_obj_group_offload_test
+	nexthop_obj_bucket_offload_test
+	nexthop_obj_blackhole_offload_test
+	nexthop_obj_route_offload_test
+	bridge_locked_port_test
+	devlink_reload_test
+"
+NUM_NETIFS=2
+: ${TIMEOUT:=20000} # ms
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+rif_vrf_set_addr_test()
+{
+	# Test that it is possible to set an IP address on a VRF upper despite
+	# its random MAC address.
+	RET=0
+
+	ip link add name vrf-test type vrf table 10
+	ip link set dev $swp1 master vrf-test
+
+	ip -4 address add 192.0.2.1/24 dev vrf-test
+	check_err $? "failed to set IPv4 address on VRF"
+	ip -6 address add 2001:db8:1::1/64 dev vrf-test
+	check_err $? "failed to set IPv6 address on VRF"
+
+	log_test "RIF - setting IP address on VRF"
+
+	ip link del dev vrf-test
+}
+
+rif_non_inherit_bridge_addr_test()
+{
+	local swp2_mac=$(mac_get $swp2)
+
+	RET=0
+
+	# Create first RIF
+	ip addr add dev $swp1 192.0.2.1/28
+	check_err $?
+
+	# Create a FID RIF
+	ip link add name br1 up type bridge vlan_filtering 0
+	ip link set dev br1 addr $swp2_mac
+	ip link set dev $swp2 master br1
+	ip addr add dev br1 192.0.2.17/28
+	check_err $?
+
+	# Prepare a device with a low MAC address
+	ip link add name d up type dummy
+	ip link set dev d addr 00:11:22:33:44:55
+
+	# Attach the device to br1. Since the bridge address was set, it should
+	# work.
+	ip link set dev d master br1 &>/dev/null
+	check_err $? "Could not attach a device with low MAC to a bridge with RIF"
+
+	# Port MAC address change should be allowed for a bridge with set MAC.
+	ip link set dev $swp2 addr 00:11:22:33:44:55
+	check_err $? "Changing swp2's MAC address not permitted"
+
+	log_test "RIF - attach port with bad MAC to bridge with set MAC"
+
+	ip link set dev $swp2 addr $swp2_mac
+	ip link del dev d
+	ip link del dev br1
+	ip addr del dev $swp1 192.0.2.1/28
+}
+
+vlan_interface_deletion_test()
+{
+	# Test that when a VLAN interface is deleted, its associated router
+	# interface (RIF) is correctly deleted and not leaked. See commit
+	# c360867ec46a ("mlxsw: spectrum: Delete RIF when VLAN device is
+	# removed") for more details
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+
+	ip link add link br0 name br0.10 type vlan id 10
+	ip -6 address add 2001:db8:1::1/64 dev br0.10
+	ip link del dev br0.10
+
+	# If we leaked the previous RIF, then this should produce a trace
+	ip link add link br0 name br0.20 type vlan id 20
+	ip -6 address add 2001:db8:1::1/64 dev br0.20
+	ip link del dev br0.20
+
+	log_test "vlan interface deletion"
+
+	ip link del dev br0
+}
+
+bridge_deletion_test()
+{
+	# Test that when a bridge with VLAN interfaces is deleted, we correctly
+	# delete the associated RIFs. See commit 602b74eda813 ("mlxsw:
+	# spectrum_switchdev: Do not leak RIFs when removing bridge") for more
+	# details
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+	ip -6 address add 2001:db8::1/64 dev br0
+
+	ip link add link br0 name br0.10 type vlan id 10
+	ip -6 address add 2001:db8:1::1/64 dev br0.10
+
+	ip link add link br0 name br0.20 type vlan id 20
+	ip -6 address add 2001:db8:2::1/64 dev br0.20
+
+	ip link del dev br0
+
+	# If we leaked previous RIFs, then this should produce a trace
+	ip -6 address add 2001:db8:1::1/64 dev $swp1
+	ip -6 address del 2001:db8:1::1/64 dev $swp1
+
+	log_test "bridge deletion"
+}
+
+bridge_vlan_flags_test()
+{
+	# Test that when bridge VLAN flags are toggled, we do not take
+	# unnecessary references on related structs. See commit 9e25826ffc94
+	# ("mlxsw: spectrum_switchdev: Fix port_vlan refcounting") for more
+	# details
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+	bridge vlan add vid 10 dev $swp1 untagged
+	bridge vlan add vid 10 dev $swp1 pvid
+	bridge vlan add vid 10 dev $swp1
+	ip link del dev br0
+
+	# If we did not handle references correctly, then this should produce a
+	# trace
+	devlink_reload
+
+	log_test "bridge vlan flags"
+}
+
+vlan_1_test()
+{
+	# Test that VLAN 1 can be configured over mlxsw ports. In the past it
+	# was used internally for untagged traffic. See commit 47bf9df2e820
+	# ("mlxsw: spectrum: Forbid creation of VLAN 1 over port/LAG") for more
+	# details
+	RET=0
+
+	ip link add link $swp1 name $swp1.1 type vlan id 1
+	check_err $? "did not manage to create vlan 1 when should"
+
+	log_test "vlan 1"
+
+	ip link del dev $swp1.1
+}
+
+duplicate_vlans_test()
+{
+	# Test that on a given port a VLAN is only used once. Either as VLAN
+	# in a VLAN-aware bridge or as a VLAN device
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+	bridge vlan add vid 10 dev $swp1
+
+	ip link add link $swp1 name $swp1.10 type vlan id 10 &> /dev/null
+	check_fail $? "managed to create vlan device when should not"
+
+	bridge vlan del vid 10 dev $swp1
+	ip link add link $swp1 name $swp1.10 type vlan id 10
+	check_err $? "did not manage to create vlan device when should"
+	bridge vlan add vid 10 dev $swp1 &> /dev/null
+	check_fail $? "managed to add bridge vlan when should not"
+
+	log_test "duplicate vlans"
+
+	ip link del dev $swp1.10
+	ip link del dev br0
+}
+
+vlan_rif_refcount_test()
+{
+	# Test that RIFs representing VLAN interfaces are not affected from
+	# ports member in the VLAN. We use the offload indication on routes
+	# configured on the RIF to understand if it was created / destroyed
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+
+	ip link set dev $swp1 up
+	ip link set dev br0 up
+
+	ip link add link br0 name br0.10 up type vlan id 10
+	ip -6 address add 2001:db8:1::1/64 dev br0.10
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
+	check_err $? "vlan rif was not created before adding port to vlan"
+
+	bridge vlan add vid 10 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
+	check_err $? "vlan rif was destroyed after adding port to vlan"
+
+	bridge vlan del vid 10 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
+	check_err $? "vlan rif was destroyed after removing port from vlan"
+
+	ip link set dev $swp1 nomaster
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev br0.10
+	check_err $? "vlan rif was not destroyed after unlinking port from bridge"
+
+	log_test "vlan rif refcount"
+
+	ip link del dev br0.10
+	ip link set dev $swp1 down
+	ip link del dev br0
+}
+
+subport_rif_refcount_test()
+{
+	# Test that RIFs representing upper devices of physical ports are
+	# reference counted correctly and destroyed when should. We use the
+	# offload indication on routes configured on the RIF to understand if
+	# it was created / destroyed
+	RET=0
+
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link set dev $swp1 master bond1
+	ip link set dev $swp2 master bond1
+
+	ip link set dev bond1 up
+	ip link add link bond1 name bond1.10 up type vlan id 10
+	ip -6 address add 2001:db8:1::1/64 dev bond1
+	ip -6 address add 2001:db8:2::1/64 dev bond1.10
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif was not created on lag device"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
+	check_err $? "subport rif was not created on vlan device"
+
+	ip link set dev $swp1 nomaster
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was destroyed when should not"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
+	check_err $? "subport rif of vlan device was destroyed when should not"
+
+	ip link set dev $swp2 nomaster
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was not destroyed when should"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:2::2 dev bond1.10
+	check_err $? "subport rif of vlan device was not destroyed when should"
+
+	log_test "subport rif refcount"
+
+	ip link del dev bond1.10
+	ip link del dev bond1
+}
+
+subport_rif_lag_join_test()
+{
+	# Test that the reference count of a RIF configured for a LAG is
+	# incremented / decremented when ports join / leave the LAG. We use the
+	# offload indication on routes configured on the RIF to understand if
+	# it was created / destroyed
+	RET=0
+
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link set dev $swp1 master bond1
+	ip link set dev $swp2 master bond1
+
+	ip link set dev bond1 up
+	ip -6 address add 2001:db8:1::1/64 dev bond1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif was not created on lag device"
+
+	ip link set dev $swp1 nomaster
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was destroyed after removing one port"
+
+	ip link set dev $swp1 master bond1
+	ip link set dev $swp2 nomaster
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was destroyed after re-adding a port and removing another"
+
+	ip link set dev $swp1 nomaster
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route get fibmatch 2001:db8:1::2 dev bond1
+	check_err $? "subport rif of lag device was not destroyed when should"
+
+	log_test "subport rif lag join"
+
+	ip link del dev bond1
+}
+
+vlan_dev_deletion_test()
+{
+	# Test that VLAN devices are correctly deleted / unlinked when enslaved
+	# to bridge
+	RET=0
+
+	ip link add name br10 type bridge
+	ip link add name br20 type bridge
+	ip link add name br30 type bridge
+	ip link add link $swp1 name $swp1.10 type vlan id 10
+	ip link add link $swp1 name $swp1.20 type vlan id 20
+	ip link add link $swp1 name $swp1.30 type vlan id 30
+	ip link set dev $swp1.10 master br10
+	ip link set dev $swp1.20 master br20
+	ip link set dev $swp1.30 master br30
+
+	# If we did not handle the situation correctly, then these operations
+	# might produce a trace
+	ip link set dev $swp1.30 nomaster
+	ip link del dev $swp1.20
+	# Deletion via ioctl uses different code paths from netlink
+	vconfig rem $swp1.10 &> /dev/null
+
+	log_test "vlan device deletion"
+
+	ip link del dev $swp1.30
+	ip link del dev br30
+	ip link del dev br20
+	ip link del dev br10
+}
+
+lag_create()
+{
+	ip link add name bond1 type bond mode 802.3ad
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link set dev $swp1 master bond1
+	ip link set dev $swp2 master bond1
+
+	ip link add link bond1 name bond1.10 type vlan id 10
+	ip link add link bond1 name bond1.20 type vlan id 20
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev bond1 master br0
+
+	ip link add name br10 type bridge
+	ip link set dev bond1.10 master br10
+
+	ip link add name br20 type bridge
+	ip link set dev bond1.20 master br20
+}
+
+lag_unlink_slaves_test()
+{
+	# Test that ports are correctly unlinked from their LAG master, when
+	# the LAG and its VLAN uppers are enslaved to bridges
+	RET=0
+
+	lag_create
+
+	ip link set dev $swp1 nomaster
+	check_err $? "lag slave $swp1 was not unlinked from master"
+	ip link set dev $swp2 nomaster
+	check_err $? "lag slave $swp2 was not unlinked from master"
+
+	# Try to configure corresponding VLANs as router interfaces
+	ip -6 address add 2001:db8:1::1/64 dev $swp1
+	check_err $? "failed to configure ip address on $swp1"
+
+	ip link add link $swp1 name $swp1.10 type vlan id 10
+	ip -6 address add 2001:db8:10::1/64 dev $swp1.10
+	check_err $? "failed to configure ip address on $swp1.10"
+
+	ip link add link $swp1 name $swp1.20 type vlan id 20
+	ip -6 address add 2001:db8:20::1/64 dev $swp1.20
+	check_err $? "failed to configure ip address on $swp1.20"
+
+	log_test "lag slaves unlinking"
+
+	ip link del dev $swp1.20
+	ip link del dev $swp1.10
+	ip address flush dev $swp1
+
+	ip link del dev br20
+	ip link del dev br10
+	ip link del dev br0
+	ip link del dev bond1
+}
+
+lag_dev_deletion_test()
+{
+	# Test that LAG device is correctly deleted, when the LAG and its VLAN
+	# uppers are enslaved to bridges
+	RET=0
+
+	lag_create
+
+	ip link del dev bond1
+
+	log_test "lag device deletion"
+
+	ip link del dev br20
+	ip link del dev br10
+	ip link del dev br0
+}
+
+vlan_interface_uppers_test()
+{
+	# Test that uppers of a VLAN interface are correctly sanitized
+	RET=0
+
+	ip link add name br0 type bridge vlan_filtering 1
+	ip link set dev $swp1 master br0
+
+	ip link add link br0 name br0.10 type vlan id 10
+
+	ip -6 address add 2001:db8:1::1/64 dev br0.10
+	ip link add link br0.10 name macvlan0 type macvlan mode private
+	check_err $? "did not manage to create a macvlan when should"
+
+	ip link del dev macvlan0
+
+	ip link add name vrf-test type vrf table 10
+	ip link set dev br0.10 master vrf-test
+	check_err $? "did not manage to enslave vlan interface to vrf"
+	ip link del dev vrf-test
+
+	ip link add name br-test type bridge
+	ip link set dev br0.10 master br-test &> /dev/null
+	check_fail $? "managed to enslave vlan interface to bridge when should not"
+	ip link del dev br-test
+
+	log_test "vlan interface uppers"
+
+	ip link del dev br0
+}
+
+bridge_extern_learn_test()
+{
+	# Test that externally learned entries added from user space are
+	# marked as offloaded
+	RET=0
+
+	ip link add name br0 type bridge
+	ip link set dev $swp1 master br0
+
+	bridge fdb add de:ad:be:ef:13:37 dev $swp1 master extern_learn
+
+	busywait "$TIMEOUT" wait_for_offload \
+		bridge fdb show brport $swp1 de:ad:be:ef:13:37
+	check_err $? "fdb entry not marked as offloaded when should"
+
+	log_test "externally learned fdb entry"
+
+	ip link del dev br0
+}
+
+neigh_offload_test()
+{
+	# Test that IPv4 and IPv6 neighbour entries are marked as offloaded
+	RET=0
+
+	ip -4 address add 192.0.2.1/24 dev $swp1
+	ip -6 address add 2001:db8:1::1/64 dev $swp1
+
+	ip -4 neigh add 192.0.2.2 lladdr de:ad:be:ef:13:37 nud perm dev $swp1
+	ip -6 neigh add 2001:db8:1::2 lladdr de:ad:be:ef:13:37 nud perm \
+		dev $swp1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 neigh show dev $swp1 192.0.2.2
+	check_err $? "ipv4 neigh entry not marked as offloaded when should"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 neigh show dev $swp1 2001:db8:1::2
+	check_err $? "ipv6 neigh entry not marked as offloaded when should"
+
+	log_test "neighbour offload indication"
+
+	ip -6 neigh del 2001:db8:1::2 dev $swp1
+	ip -4 neigh del 192.0.2.2 dev $swp1
+	ip -6 address del 2001:db8:1::1/64 dev $swp1
+	ip -4 address del 192.0.2.1/24 dev $swp1
+}
+
+nexthop_offload_test()
+{
+	# Test that IPv4 and IPv6 nexthops are marked as offloaded
+	RET=0
+
+	sysctl_set net.ipv6.conf.$swp2.keep_addr_on_down 1
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2 192.0.2.2/24 2001:db8:1::2/64
+	setup_wait
+
+	ip -4 route add 198.51.100.0/24 vrf v$swp1 \
+		nexthop via 192.0.2.2 dev $swp1
+	ip -6 route add 2001:db8:2::/64 vrf v$swp1 \
+		nexthop via 2001:db8:1::2 dev $swp1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
+	check_err $? "ipv4 nexthop not marked as offloaded when should"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
+	check_err $? "ipv6 nexthop not marked as offloaded when should"
+
+	ip link set dev $swp2 down
+	sleep 1
+
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
+	check_err $? "ipv4 nexthop marked as offloaded when should not"
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
+	check_err $? "ipv6 nexthop marked as offloaded when should not"
+
+	ip link set dev $swp2 up
+	setup_wait
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -4 route show 198.51.100.0/24 vrf v$swp1
+	check_err $? "ipv4 nexthop not marked as offloaded after neigh add"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip -6 route show 2001:db8:2::/64 vrf v$swp1
+	check_err $? "ipv6 nexthop not marked as offloaded after neigh add"
+
+	log_test "nexthop offload indication"
+
+	ip -6 route del 2001:db8:2::/64 vrf v$swp1
+	ip -4 route del 198.51.100.0/24 vrf v$swp1
+
+	simple_if_fini $swp2 192.0.2.2/24 2001:db8:1::2/64
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+	sysctl_restore net.ipv6.conf.$swp2.keep_addr_on_down
+}
+
+nexthop_obj_invalid_test()
+{
+	# Test that invalid nexthop object configurations are rejected
+	RET=0
+
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2 192.0.2.2/24 2001:db8:1::2/64
+	setup_wait
+
+	ip nexthop add id 1 via 192.0.2.3 fdb
+	check_fail $? "managed to configure an FDB nexthop when should not"
+
+	ip nexthop add id 1 encap mpls 200/300 via 192.0.2.3 dev $swp1
+	check_fail $? "managed to configure a nexthop with MPLS encap when should not"
+
+	ip nexthop add id 1 dev $swp1
+	ip nexthop add id 2 dev $swp1
+	ip nexthop add id 3 via 192.0.2.3 dev $swp1
+	ip nexthop add id 10 group 1/2
+	check_fail $? "managed to configure a nexthop group with device-only nexthops when should not"
+
+	ip nexthop add id 10 group 3 type resilient buckets 7
+	check_fail $? "managed to configure a too small resilient nexthop group when should not"
+
+	ip nexthop add id 10 group 3 type resilient buckets 129
+	check_fail $? "managed to configure a resilient nexthop group with invalid number of buckets when should not"
+
+	ip nexthop add id 10 group 1/2 type resilient buckets 32
+	check_fail $? "managed to configure a resilient nexthop group with device-only nexthops when should not"
+
+	ip nexthop add id 10 group 3 type resilient buckets 32
+	check_err $? "failed to configure a valid resilient nexthop group"
+	ip nexthop replace id 3 dev $swp1
+	check_fail $? "managed to populate a nexthop bucket with a device-only nexthop when should not"
+
+	log_test "nexthop objects - invalid configurations"
+
+	ip nexthop del id 10
+	ip nexthop del id 3
+	ip nexthop del id 2
+	ip nexthop del id 1
+
+	simple_if_fini $swp2 192.0.2.2/24 2001:db8:1::2/64
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_offload_test()
+{
+	# Test offload indication of nexthop objects
+	RET=0
+
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2
+	setup_wait
+
+	ip nexthop add id 1 via 192.0.2.2 dev $swp1
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "nexthop not marked as offloaded when should"
+
+	ip neigh replace 192.0.2.2 nud failed dev $swp1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "nexthop marked as offloaded after setting neigh to failed state"
+
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "nexthop not marked as offloaded after neigh replace"
+
+	ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "nexthop marked as offloaded after replacing to use an invalid address"
+
+	ip nexthop replace id 1 via 192.0.2.2 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "nexthop not marked as offloaded after replacing to use a valid address"
+
+	log_test "nexthop objects offload indication"
+
+	ip neigh del 192.0.2.2 dev $swp1
+	ip nexthop del id 1
+
+	simple_if_fini $swp2
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_group_offload_test()
+{
+	# Test offload indication of nexthop group objects
+	RET=0
+
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2
+	setup_wait
+
+	ip nexthop add id 1 via 192.0.2.2 dev $swp1
+	ip nexthop add id 2 via 2001:db8:1::2 dev $swp1
+	ip nexthop add id 10 group 1/2
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "IPv4 nexthop not marked as offloaded when should"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 2
+	check_err $? "IPv6 nexthop not marked as offloaded when should"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 10
+	check_err $? "nexthop group not marked as offloaded when should"
+
+	# Invalidate nexthop id 1
+	ip neigh replace 192.0.2.2 nud failed dev $swp1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip nexthop show id 10
+	check_fail $? "nexthop group not marked as offloaded with one valid nexthop"
+
+	# Invalidate nexthop id 2
+	ip neigh replace 2001:db8:1::2 nud failed dev $swp1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip nexthop show id 10
+	check_err $? "nexthop group marked as offloaded when should not"
+
+	# Revalidate nexthop id 1
+	ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 10
+	check_err $? "nexthop group not marked as offloaded after revalidating nexthop"
+
+	log_test "nexthop group objects offload indication"
+
+	ip neigh del 2001:db8:1::2 dev $swp1
+	ip neigh del 192.0.2.3 dev $swp1
+	ip neigh del 192.0.2.2 dev $swp1
+	ip nexthop del id 10
+	ip nexthop del id 2
+	ip nexthop del id 1
+
+	simple_if_fini $swp2
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_bucket_offload_test()
+{
+	# Test offload indication of nexthop buckets
+	RET=0
+
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2
+	setup_wait
+
+	ip nexthop add id 1 via 192.0.2.2 dev $swp1
+	ip nexthop add id 2 via 2001:db8:1::2 dev $swp1
+	ip nexthop add id 10 group 1/2 type resilient buckets 32 idle_timer 0
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop bucket show nhid 1
+	check_err $? "IPv4 nexthop buckets not marked as offloaded when should"
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop bucket show nhid 2
+	check_err $? "IPv6 nexthop buckets not marked as offloaded when should"
+
+	# Invalidate nexthop id 1
+	ip neigh replace 192.0.2.2 nud failed dev $swp1
+	busywait "$TIMEOUT" wait_for_trap \
+		ip nexthop bucket show nhid 1
+	check_err $? "IPv4 nexthop buckets not marked with trap when should"
+
+	# Invalidate nexthop id 2
+	ip neigh replace 2001:db8:1::2 nud failed dev $swp1
+	busywait "$TIMEOUT" wait_for_trap \
+		ip nexthop bucket show nhid 2
+	check_err $? "IPv6 nexthop buckets not marked with trap when should"
+
+	# Revalidate nexthop id 1 by changing its configuration
+	ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop bucket show nhid 1
+	check_err $? "nexthop bucket not marked as offloaded after revalidating nexthop"
+
+	# Revalidate nexthop id 2 by changing its neighbour
+	ip neigh replace 2001:db8:1::2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop bucket show nhid 2
+	check_err $? "nexthop bucket not marked as offloaded after revalidating neighbour"
+
+	log_test "nexthop bucket offload indication"
+
+	ip neigh del 2001:db8:1::2 dev $swp1
+	ip neigh del 192.0.2.3 dev $swp1
+	ip neigh del 192.0.2.2 dev $swp1
+	ip nexthop del id 10
+	ip nexthop del id 2
+	ip nexthop del id 1
+
+	simple_if_fini $swp2
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+nexthop_obj_blackhole_offload_test()
+{
+	# Test offload indication of blackhole nexthop objects
+	RET=0
+
+	ip nexthop add id 1 blackhole
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 1
+	check_err $? "Blackhole nexthop not marked as offloaded when should"
+
+	ip nexthop add id 10 group 1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip nexthop show id 10
+	check_err $? "Nexthop group not marked as offloaded when should"
+
+	log_test "blackhole nexthop objects offload indication"
+
+	ip nexthop del id 10
+	ip nexthop del id 1
+}
+
+nexthop_obj_route_offload_test()
+{
+	# Test offload indication of routes using nexthop objects
+	RET=0
+
+	simple_if_init $swp1 192.0.2.1/24 2001:db8:1::1/64
+	simple_if_init $swp2
+	setup_wait
+
+	ip nexthop add id 1 via 192.0.2.2 dev $swp1
+	ip neigh replace 192.0.2.2 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+	ip neigh replace 192.0.2.3 lladdr 00:11:22:33:44:55 nud perm \
+		dev $swp1
+
+	ip route replace 198.51.100.0/24 nhid 1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip route show 198.51.100.0/24
+	check_err $? "route not marked as offloaded when using valid nexthop"
+
+	ip nexthop replace id 1 via 192.0.2.3 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip route show 198.51.100.0/24
+	check_err $? "route not marked as offloaded after replacing valid nexthop with a valid one"
+
+	ip nexthop replace id 1 via 192.0.2.4 dev $swp1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip route show 198.51.100.0/24
+	check_err $? "route marked as offloaded after replacing valid nexthop with an invalid one"
+
+	ip nexthop replace id 1 via 192.0.2.2 dev $swp1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip route show 198.51.100.0/24
+	check_err $? "route not marked as offloaded after replacing invalid nexthop with a valid one"
+
+	log_test "routes using nexthop objects offload indication"
+
+	ip route del 198.51.100.0/24
+	ip neigh del 192.0.2.3 dev $swp1
+	ip neigh del 192.0.2.2 dev $swp1
+	ip nexthop del id 1
+
+	simple_if_fini $swp2
+	simple_if_fini $swp1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+bridge_locked_port_test()
+{
+	RET=0
+
+	ip link add name br1 up type bridge vlan_filtering 0
+
+	ip link add link $swp1 name $swp1.10 type vlan id 10
+	ip link set dev $swp1.10 master br1
+
+	bridge link set dev $swp1.10 locked on
+	check_fail $? "managed to set locked flag on a VLAN upper"
+
+	ip link set dev $swp1.10 nomaster
+	ip link set dev $swp1 master br1
+
+	bridge link set dev $swp1 locked on
+	check_fail $? "managed to set locked flag on a bridge port that has a VLAN upper"
+
+	ip link del dev $swp1.10
+	bridge link set dev $swp1 locked on
+
+	ip link add link $swp1 name $swp1.10 type vlan id 10
+	check_fail $? "managed to configure a VLAN upper on a locked port"
+
+	log_test "bridge locked port"
+
+	ip link del dev $swp1.10 &> /dev/null
+	ip link del dev br1
+}
+
+devlink_reload_test()
+{
+	# Test that after executing all the above configuration tests, a
+	# devlink reload can be performed without errors
+	RET=0
+
+	devlink_reload
+
+	log_test "devlink reload - last test"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
new file mode 100755
index 000000000000..4aaceb6b2b60
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_ets.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A driver for the ETS selftest that implements testing in offloaded datapath.
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/sch_ets_core.sh
+source $lib_dir/devlink_lib.sh
+
+ALL_TESTS="
+	ping_ipv4
+	priomap_mode
+	ets_test_strict
+	ets_test_mixed
+	ets_test_dwrr
+"
+
+PARENT="parent 3:3"
+
+switch_create()
+{
+	# Create a bottleneck so that the DWRR process can kick in.
+	tc qdisc replace dev $swp2 root handle 3: tbf rate 1gbit \
+		burst 128K limit 1G
+	defer tc qdisc del dev $swp2 root handle 3:
+
+	ets_switch_create
+
+	# Set the ingress quota high and use the three egress TCs to limit the
+	# amount of traffic that is admitted to the shared buffers. This makes
+	# sure that there is always enough traffic of all types to select from
+	# for the DWRR process.
+	devlink_port_pool_th_save $swp1 0
+	devlink_port_pool_th_set $swp1 0 12
+	defer devlink_port_pool_th_restore $swp1 0
+
+	devlink_tc_bind_pool_th_save $swp1 0 ingress
+	devlink_tc_bind_pool_th_set $swp1 0 ingress 0 12
+	defer devlink_tc_bind_pool_th_restore $swp1 0 ingress
+
+	devlink_port_pool_th_save $swp2 4
+	devlink_port_pool_th_set $swp2 4 12
+	defer devlink_port_pool_th_restore $swp2 4
+
+	devlink_tc_bind_pool_th_save $swp2 7 egress
+	devlink_tc_bind_pool_th_set $swp2 7 egress 4 5
+	defer devlink_tc_bind_pool_th_restore $swp2 7 egress
+
+	devlink_tc_bind_pool_th_save $swp2 6 egress
+	devlink_tc_bind_pool_th_set $swp2 6 egress 4 5
+	defer devlink_tc_bind_pool_th_restore $swp2 6 egress
+
+	devlink_tc_bind_pool_th_save $swp2 5 egress
+	devlink_tc_bind_pool_th_set $swp2 5 egress 4 5
+	defer devlink_tc_bind_pool_th_restore $swp2 5 egress
+
+	# Note: sch_ets_core.sh uses VLAN ingress-qos-map to assign packet
+	# priorities at $swp1 based on their 802.1p headers. ingress-qos-map is
+	# not offloaded by mlxsw as of this writing, but the mapping used is
+	# 1:1, which is the mapping currently hard-coded by the driver.
+}
+
+# Callback from sch_ets_tests.sh
+collect_stats()
+{
+	local -a streams=("$@")
+	local stream
+
+	# Wait for qdisc counter update so that we don't get it mid-way through.
+	busywait_for_counter 1000 +1 \
+		qdisc_parent_stats_get $swp2 10:$((${streams[0]} + 1)) .bytes \
+		> /dev/null
+
+	for stream in ${streams[@]}; do
+		qdisc_parent_stats_get $swp2 10:$((stream + 1)) .bytes
+	done
+}
+
+bail_on_lldpad "configure DCB" "configure Qdiscs"
+ets_run
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_offload.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_offload.sh
new file mode 100755
index 000000000000..071a33d10c20
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_offload.sh
@@ -0,0 +1,290 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test qdisc offload indication
+
+
+ALL_TESTS="
+	test_root
+	test_port_tbf
+	test_etsprio
+	test_etsprio_port_tbf
+"
+NUM_NETIFS=1
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/lib.sh
+
+check_not_offloaded()
+{
+	local handle=$1; shift
+	local h
+	local offloaded
+
+	h=$(qdisc_stats_get $h1 "$handle" .handle)
+	[[ $h == '"'$handle'"' ]]
+	check_err $? "Qdisc with handle $handle does not exist"
+
+	offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
+	[[ $offloaded == true ]]
+	check_fail $? "Qdisc with handle $handle offloaded, but should not be"
+}
+
+check_all_offloaded()
+{
+	local handle=$1; shift
+
+	if [[ ! -z $handle ]]; then
+		local offloaded=$(qdisc_stats_get $h1 "$handle" .offloaded)
+		[[ $offloaded == true ]]
+		check_err $? "Qdisc with handle $handle not offloaded"
+	fi
+
+	local unoffloaded=$(tc q sh dev $h1 invisible |
+				grep -v offloaded |
+				sed s/root/parent\ root/ |
+				cut -d' ' -f 5)
+	[[ -z $unoffloaded ]]
+	check_err $? "Qdiscs with following parents not offloaded: $unoffloaded"
+
+	pre_cleanup
+}
+
+with_ets()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle \
+	   ets bands 8 priomap 7 6 5 4 3 2 1 0
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_prio()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle \
+	   prio bands 8 priomap 7 6 5 4 3 2 1 0
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_red()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle \
+	   red limit 1000000 min 200000 max 300000 probability 0.5 avpkt 1500
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_tbf()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle \
+	   tbf rate 400Mbit burst 128K limit 1M
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_pfifo()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle pfifo limit 100K
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_bfifo()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle bfifo limit 100K
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_drr()
+{
+	local handle=$1; shift
+	local locus=$1; shift
+
+	tc qdisc add dev $h1 $locus handle $handle drr
+	"$@"
+	tc qdisc del dev $h1 $locus
+}
+
+with_qdiscs()
+{
+	local handle=$1; shift
+	local parent=$1; shift
+	local kind=$1; shift
+	local next_handle=$((handle * 2))
+	local locus;
+
+	if [[ $kind == "--" ]]; then
+		local cmd=$1; shift
+		$cmd $(printf %x: $parent) "$@"
+	else
+		if ((parent == 0)); then
+			locus=root
+		else
+			locus=$(printf "parent %x:1" $parent)
+		fi
+
+		with_$kind $(printf %x: $handle) "$locus" \
+			with_qdiscs $next_handle $handle "$@"
+	fi
+}
+
+get_name()
+{
+	local parent=$1; shift
+	local name=$(echo "" "${@^^}" | tr ' ' -)
+
+	if ((parent != 0)); then
+		kind=$(qdisc_stats_get $h1 $parent: .kind)
+		kind=${kind%\"}
+		kind=${kind#\"}
+		name="-${kind^^}$name"
+	fi
+
+	echo root$name
+}
+
+do_test_offloaded()
+{
+	local handle=$1; shift
+	local parent=$1; shift
+
+	RET=0
+	with_qdiscs $handle $parent "$@" -- check_all_offloaded
+	log_test $(get_name $parent "$@")" offloaded"
+}
+
+do_test_nooffload()
+{
+	local handle=$1; shift
+	local parent=$1; shift
+
+	local name=$(echo "${@^^}" | tr ' ' -)
+	local kind
+
+	RET=0
+	with_qdiscs $handle $parent "$@" -- check_not_offloaded
+	log_test $(get_name $parent "$@")" not offloaded"
+}
+
+do_test_combinations()
+{
+	local handle=$1; shift
+	local parent=$1; shift
+
+	local cont
+	local leaf
+	local fifo
+
+	for cont in "" ets prio; do
+		for leaf in "" red tbf "red tbf" "tbf red"; do
+			for fifo in "" pfifo bfifo; do
+				if [[ -z "$cont$leaf$fifo" ]]; then
+					continue
+				fi
+				do_test_offloaded $handle $parent \
+						  $cont $leaf $fifo
+			done
+		done
+	done
+
+	for cont in ets prio; do
+		for leaf in red tbf; do
+			do_test_nooffload $handle $parent $cont red tbf $leaf
+			do_test_nooffload $handle $parent $cont tbf red $leaf
+		done
+		for leaf in "red red" "tbf tbf"; do
+			do_test_nooffload $handle $parent $cont $leaf
+		done
+	done
+
+	do_test_nooffload $handle $parent drr
+}
+
+test_root()
+{
+	do_test_combinations 1 0
+}
+
+test_port_tbf()
+{
+	with_tbf 1: root \
+		do_test_combinations 8 1
+}
+
+do_test_etsprio()
+{
+	local parent=$1; shift
+	local tbfpfx=$1; shift
+	local cont
+
+	for cont in ets prio; do
+		RET=0
+		with_$cont 8: "$parent" \
+			with_red 11: "parent 8:1" \
+			with_red 12: "parent 8:2" \
+			with_tbf 13: "parent 8:3" \
+			with_tbf 14: "parent 8:4" \
+			check_all_offloaded
+		log_test "root$tbfpfx-ETS-{RED,TBF} offloaded"
+
+		RET=0
+		with_$cont 8: "$parent" \
+			with_red 81: "parent 8:1" \
+				with_tbf 811: "parent 81:1" \
+			with_tbf 84: "parent 8:4" \
+				with_red 841: "parent 84:1" \
+			check_all_offloaded
+		log_test "root$tbfpfx-ETS-{RED-TBF,TBF-RED} offloaded"
+
+		RET=0
+		with_$cont 8: "$parent" \
+			with_red 81: "parent 8:1" \
+				with_tbf 811: "parent 81:1" \
+					with_bfifo 8111: "parent 811:1" \
+			with_tbf 82: "parent 8:2" \
+				with_red 821: "parent 82:1" \
+					with_bfifo 8211: "parent 821:1" \
+			check_all_offloaded
+		log_test "root$tbfpfx-ETS-{RED-TBF-bFIFO,TBF-RED-bFIFO} offloaded"
+	done
+}
+
+test_etsprio()
+{
+	do_test_etsprio root ""
+}
+
+test_etsprio_port_tbf()
+{
+	with_tbf 1: root \
+		do_test_etsprio "parent 1:1" "-TBF"
+}
+
+cleanup()
+{
+	tc qdisc del dev $h1 root &>/dev/null
+}
+
+trap cleanup EXIT
+h1=${NETIFS[p1]}
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh
new file mode 100644
index 000000000000..47d2ffcf366e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_core.sh
@@ -0,0 +1,761 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends a >1Gbps stream of traffic from H1, to the switch, which
+# forwards it to a 1Gbps port. This 1Gbps stream is then looped back to the
+# switch and forwarded to the port under test $swp3, which is also 1Gbps.
+#
+# This way, $swp3 should be 100% filled with traffic without any of it spilling
+# to the backlog. Any extra packets sent should almost 1:1 go to backlog. That
+# is what H2 is used for--it sends the extra traffic to create backlog.
+#
+# A RED Qdisc is installed on $swp3. The configuration is such that the minimum
+# and maximum size are 1 byte apart, so there is a very clear border under which
+# no marking or dropping takes place, and above which everything is marked or
+# dropped.
+#
+# The test uses the buffer build-up behavior to test the installed RED.
+#
+# In order to test WRED, $swp3 actually contains RED under PRIO, with two
+# different configurations. Traffic is prioritized using 802.1p and relies on
+# the implicit mlxsw configuration, where packet priority is taken 1:1 from the
+# 802.1p marking.
+#
+# +--------------------------+                     +--------------------------+
+# | H1                       |                     | H2                       |
+# |     + $h1.10             |                     |     + $h2.10             |
+# |     | 192.0.2.1/28       |                     |     | 192.0.2.2/28       |
+# |     |                    |                     |     |                    |
+# |     |         $h1.11 +   |                     |     |         $h2.11 +   |
+# |     |  192.0.2.17/28 |   |                     |     |  192.0.2.18/28 |   |
+# |     |                |   |                     |     |                |   |
+# |     \______    ______/   |                     |     \______    ______/   |
+# |            \ /           |                     |            \ /           |
+# |             + $h1        |                     |             + $h2        |
+# +-------------|------------+                     +-------------|------------+
+#               | >1Gbps                                         |
+# +-------------|------------------------------------------------|------------+
+# | SW          + $swp1                                          + $swp2      |
+# |     _______/ \___________                        ___________/ \_______    |
+# |    /                     \                      /                     \   |
+# |  +-|-----------------+   |                    +-|-----------------+   |   |
+# |  | + $swp1.10        |   |                    | + $swp2.10        |   |   |
+# |  |                   |   |        .-------------+ $swp5.10        |   |   |
+# |  |     BR1_10        |   |        |           |                   |   |   |
+# |  |                   |   |        |           |     BR2_10        |   |   |
+# |  | + $swp2.10        |   |        |           |                   |   |   |
+# |  +-|-----------------+   |        |           | + $swp3.10        |   |   |
+# |    |                     |        |           +-|-----------------+   |   |
+# |    |   +-----------------|-+      |             |   +-----------------|-+ |
+# |    |   |        $swp1.11 + |      |             |   |        $swp2.11 + | |
+# |    |   |                   |      | .-----------------+ $swp5.11        | |
+# |    |   |      BR1_11       |      | |           |   |                   | |
+# |    |   |                   |      | |           |   |      BR2_11       | |
+# |    |   |        $swp2.11 + |      | |           |   |                   | |
+# |    |   +-----------------|-+      | |           |   |        $swp3.11 + | |
+# |    |                     |        | |           |   +-----------------|-+ |
+# |    \_______   ___________/        | |           \___________   _______/   |
+# |            \ /                    \ /                       \ /           |
+# |             + $swp4                + $swp5                   + $swp3      |
+# +-------------|----------------------|-------------------------|------------+
+#               |                      |                         | 1Gbps
+#               \________1Gbps_________/                         |
+#                                   +----------------------------|------------+
+#                                   | H3                         + $h3        |
+#                                   |      _____________________/ \_______    |
+#                                   |     /                               \   |
+#                                   |     |                               |   |
+#                                   |     + $h3.10                 $h3.11 +   |
+#                                   |       192.0.2.3/28    192.0.2.19/28     |
+#                                   +-----------------------------------------+
+
+NUM_NETIFS=8
+CHECK_TC="yes"
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
+
+stop_traffic_sleep()
+{
+	local pid=$1; shift
+
+	# Issuing a kill still leaves a bunch of packets lingering in the
+	# buffers. This traffic then arrives at the point where a follow-up test
+	# is already running, and can confuse the test. Therefore sleep after
+	# stopping traffic to flush any leftover packets.
+	stop_traffic "$pid"
+	sleep 1
+}
+
+ipaddr()
+{
+	local host=$1; shift
+	local vlan=$1; shift
+
+	echo 192.0.2.$((16 * (vlan - 10) + host))
+}
+
+host_create()
+{
+	local dev=$1; shift
+	local host=$1; shift
+
+	adf_simple_if_init $dev
+
+	mtu_set $dev 10000
+	defer mtu_restore $dev
+
+	vlan_create $dev 10 v$dev $(ipaddr $host 10)/28
+	defer vlan_destroy $dev 10
+	ip link set dev $dev.10 type vlan egress 0:0
+
+	vlan_create $dev 11 v$dev $(ipaddr $host 11)/28
+	defer vlan_destroy $dev 11
+	ip link set dev $dev.11 type vlan egress 0:1
+}
+
+h1_create()
+{
+	host_create $h1 1
+}
+
+h2_create()
+{
+	host_create $h2 2
+
+	tc qdisc add dev $h2 clsact
+	defer tc qdisc del dev $h2 clsact
+
+	# Some of the tests in this suite use multicast traffic. As this traffic
+	# enters BR2_10 resp. BR2_11, it is flooded to all other ports. Thus
+	# e.g. traffic ingressing through $swp2 is flooded to $swp3 (the
+	# intended destination) and $swp5 (which is intended as ingress for
+	# another stream of traffic).
+	#
+	# This is generally not a problem, but if the $swp5 throughput is lower
+	# than $swp2 throughput, there will be a build-up at $swp5. That may
+	# cause packets to fail to queue up at $swp3 due to shared buffer
+	# quotas, and the test to spuriously fail.
+	#
+	# Prevent this by adding a shaper which limits the traffic in $h2 to
+	# 1Gbps.
+
+	tc qdisc replace dev $h2 root handle 10: tbf rate 200mbit \
+		burst 128K limit 1G
+	defer tc qdisc del dev $h2 root handle 10:
+}
+
+h3_create()
+{
+	host_create $h3 3
+}
+
+switch_create()
+{
+	local intf
+	local vlan
+
+	ip link add dev br1_10 type bridge
+	defer ip link del dev br1_10
+
+	ip link add dev br1_11 type bridge
+	defer ip link del dev br1_11
+
+	ip link add dev br2_10 type bridge
+	defer ip link del dev br2_10
+
+	ip link add dev br2_11 type bridge
+	defer ip link del dev br2_11
+
+	for intf in $swp1 $swp2 $swp3 $swp4 $swp5; do
+		ip link set dev $intf up
+		defer ip link set dev $intf down
+
+		mtu_set $intf 10000
+		defer mtu_restore $intf
+	done
+
+	for intf in $swp1 $swp4; do
+		for vlan in 10 11; do
+			vlan_create $intf $vlan
+			defer vlan_destroy $intf $vlan
+
+			ip link set dev $intf.$vlan master br1_$vlan
+			defer ip link set dev $intf.$vlan nomaster
+
+			ip link set dev $intf.$vlan up
+			defer ip link set dev $intf.$vlan up
+		done
+	done
+
+	for intf in $swp2 $swp3 $swp5; do
+		for vlan in 10 11; do
+			vlan_create $intf $vlan
+			defer vlan_destroy $intf $vlan
+
+			ip link set dev $intf.$vlan master br2_$vlan
+			defer ip link set dev $intf.$vlan nomaster
+
+			ip link set dev $intf.$vlan up
+			defer ip link set dev $intf.$vlan up
+		done
+	done
+
+	ip link set dev $swp4.10 type vlan egress 0:0
+	ip link set dev $swp4.11 type vlan egress 0:1
+	for intf in $swp1 $swp2 $swp5; do
+		for vlan in 10 11; do
+			ip link set dev $intf.$vlan type vlan ingress 0:0 1:1
+		done
+	done
+
+	for intf in $swp3 $swp4; do
+		tc qdisc replace dev $intf root handle 1: tbf rate 200mbit \
+			burst 128K limit 1G
+		defer tc qdisc del dev $intf root handle 1:
+	done
+
+	ip link set dev br1_10 up
+	defer ip link set dev br1_10 down
+
+	ip link set dev br1_11 up
+	defer ip link set dev br1_11 down
+
+	ip link set dev br2_10 up
+	defer ip link set dev br2_10 down
+
+	ip link set dev br2_11 up
+	defer ip link set dev br2_11 down
+
+	local size=$(devlink_pool_size_thtype 0 | cut -d' ' -f 1)
+	devlink_port_pool_th_save $swp3 8
+	devlink_port_pool_th_set $swp3 8 $size
+	defer devlink_port_pool_th_restore $swp3 8
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	swp4=${NETIFS[p7]}
+	swp5=${NETIFS[p8]}
+
+	h3_mac=$(mac_get $h3)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1.10 $(ipaddr 3 10) " from host 1, vlan 10"
+	ping_test $h1.11 $(ipaddr 3 11) " from host 1, vlan 11"
+	ping_test $h2.10 $(ipaddr 3 10) " from host 2, vlan 10"
+	ping_test $h2.11 $(ipaddr 3 11) " from host 2, vlan 11"
+}
+
+get_tc()
+{
+	local vlan=$1; shift
+
+	echo $((vlan - 10))
+}
+
+get_qdisc_handle()
+{
+	local vlan=$1; shift
+
+	local tc=$(get_tc $vlan)
+	local band=$((8 - tc))
+
+	# Handle is 107: for TC1, 108: for TC0.
+	echo "10$band:"
+}
+
+get_qdisc_backlog()
+{
+	local vlan=$1; shift
+
+	qdisc_stats_get $swp3 $(get_qdisc_handle $vlan) .backlog
+}
+
+get_mc_transmit_queue()
+{
+	local vlan=$1; shift
+
+	local tc=$(($(get_tc $vlan) + 8))
+	ethtool_stats_get $swp3 tc_transmit_queue_tc_$tc
+}
+
+get_nmarked()
+{
+	local vlan=$1; shift
+
+	ethtool_stats_get $swp3 ecn_marked
+}
+
+get_qdisc_nmarked()
+{
+	local vlan=$1; shift
+
+	busywait_for_counter 1100 +1 \
+		qdisc_stats_get $swp3 $(get_qdisc_handle $vlan) .marked
+}
+
+get_qdisc_npackets()
+{
+	local vlan=$1; shift
+
+	busywait_for_counter 1100 +1 \
+		qdisc_stats_get $swp3 $(get_qdisc_handle $vlan) .packets
+}
+
+send_packets()
+{
+	local vlan=$1; shift
+	local proto=$1; shift
+	local pkts=$1; shift
+
+	$MZ $h2.$vlan -p 8000 -a own -b $h3_mac \
+	    -A $(ipaddr 2 $vlan) -B $(ipaddr 3 $vlan) \
+	    -t $proto -q -c $pkts "$@"
+}
+
+# This sends traffic in an attempt to build a backlog of $size. Returns 0 on
+# success. After 10 failed attempts it bails out and returns 1. It dumps the
+# backlog size to stdout.
+build_backlog()
+{
+	local vlan=$1; shift
+	local size=$1; shift
+	local proto=$1; shift
+
+	local tc=$((vlan - 10))
+	local band=$((8 - tc))
+	local cur=-1
+	local i=0
+
+	while :; do
+		sleep 1
+		local cur=$(busywait 1100 until_counter_is "> $cur" \
+					    get_qdisc_backlog $vlan)
+		local diff=$((size - cur))
+		local pkts=$(((diff + 7999) / 8000))
+
+		if ((cur >= size)); then
+			echo $cur
+			return 0
+		elif ((i++ > 10)); then
+			echo $cur
+			return 1
+		fi
+
+		send_packets $vlan $proto $pkts "$@"
+	done
+}
+
+check_marking()
+{
+	local get_nmarked=$1; shift
+	local vlan=$1; shift
+	local cond=$1; shift
+
+	local npackets_0=$(get_qdisc_npackets $vlan)
+	local nmarked_0=$($get_nmarked $vlan)
+	sleep 5
+	local npackets_1=$(get_qdisc_npackets $vlan)
+	local nmarked_1=$($get_nmarked $vlan)
+
+	local nmarked_d=$((nmarked_1 - nmarked_0))
+	local npackets_d=$((npackets_1 - npackets_0))
+	local pct=$((100 * nmarked_d / npackets_d))
+
+	echo $pct
+	((pct $cond))
+}
+
+ecn_test_common()
+{
+	local name=$1; shift
+	local get_nmarked=$1; shift
+	local vlan=$1; shift
+	local limit=$1; shift
+	local backlog
+	local pct
+
+	# Build the below-the-limit backlog using UDP. We could use TCP just
+	# fine, but this way we get a proof that UDP is accepted when queue
+	# length is below the limit. The main stream is using TCP, and if the
+	# limit is misconfigured, we would see this traffic being ECN marked.
+	RET=0
+	backlog=$(build_backlog $vlan $((2 * limit / 3)) udp)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking "$get_nmarked" $vlan "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	log_test "TC $((vlan - 10)): $name backlog < limit"
+
+	# Now push TCP, because non-TCP traffic would be early-dropped after the
+	# backlog crosses the limit, and we want to make sure that the backlog
+	# is above the limit.
+	RET=0
+	backlog=$(build_backlog $vlan $((3 * limit / 2)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking "$get_nmarked" $vlan ">= 95")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected >= 95."
+	log_test "TC $((vlan - 10)): $name backlog > limit"
+}
+
+__do_ecn_test()
+{
+	local get_nmarked=$1; shift
+	local vlan=$1; shift
+	local limit=$1; shift
+	local name=${1-ECN}; shift
+
+	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
+			  $h3_mac tos=0x01
+	defer stop_traffic_sleep $!
+	sleep 1
+
+	ecn_test_common "$name" "$get_nmarked" $vlan $limit
+
+	# Up there we saw that UDP gets accepted when backlog is below the
+	# limit. Now that it is above, it should all get dropped, and backlog
+	# building should fail.
+	RET=0
+	build_backlog $vlan $((2 * limit)) udp >/dev/null
+	check_fail $? "UDP traffic went into backlog instead of being early-dropped"
+	log_test "TC $((vlan - 10)): $name backlog > limit: UDP early-dropped"
+}
+
+do_ecn_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+
+	in_defer_scope \
+		__do_ecn_test get_nmarked "$vlan" "$limit"
+}
+
+do_ecn_test_perband()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+
+	mlxsw_only_on_spectrum 3+ || return
+	in_defer_scope \
+		__do_ecn_test get_qdisc_nmarked "$vlan" "$limit" "per-band ECN"
+}
+
+__do_ecn_nodrop_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local name="ECN nodrop"
+
+	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
+			  $h3_mac tos=0x01
+	defer stop_traffic_sleep $!
+	sleep 1
+
+	ecn_test_common "$name" get_nmarked $vlan $limit
+
+	# Up there we saw that UDP gets accepted when backlog is below the
+	# limit. Now that it is above, in nodrop mode, make sure it goes to
+	# backlog as well.
+	RET=0
+	build_backlog $vlan $((2 * limit)) udp >/dev/null
+	check_err $? "UDP traffic was early-dropped instead of getting into backlog"
+	log_test "TC $((vlan - 10)): $name backlog > limit: UDP not dropped"
+}
+
+do_ecn_nodrop_test()
+{
+	in_defer_scope \
+		__do_ecn_nodrop_test "$@"
+}
+
+__do_red_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local backlog
+	local pct
+
+	# Use ECN-capable TCP to verify there's no marking even though the queue
+	# is above limit.
+	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
+			  $h3_mac tos=0x01
+	defer stop_traffic_sleep $!
+
+	# Pushing below the queue limit should work.
+	RET=0
+	backlog=$(build_backlog $vlan $((2 * limit / 3)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking get_nmarked $vlan "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	log_test "TC $((vlan - 10)): RED backlog < limit"
+
+	# Pushing above should not.
+	RET=0
+	backlog=$(build_backlog $vlan $((3 * limit / 2)) tcp tos=0x01)
+	check_fail $? "Traffic went into backlog instead of being early-dropped"
+	pct=$(check_marking get_nmarked $vlan "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	backlog=$(get_qdisc_backlog $vlan)
+	local diff=$((limit - backlog))
+	pct=$((100 * diff / limit))
+	((-15 <= pct && pct <= 15))
+	check_err $? "backlog $backlog / $limit expected <= 15% distance"
+	log_test "TC $((vlan - 10)): RED backlog > limit"
+}
+
+do_red_test()
+{
+	in_defer_scope \
+		__do_red_test "$@"
+}
+
+__do_mc_backlog_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local backlog
+	local pct
+
+	RET=0
+
+	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) bc
+	defer stop_traffic_sleep $!
+
+	start_tcp_traffic $h2.$vlan $(ipaddr 2 $vlan) $(ipaddr 3 $vlan) bc
+	defer stop_traffic_sleep $!
+
+	qbl=$(busywait 5000 until_counter_is ">= 500000" \
+		       get_qdisc_backlog $vlan)
+	check_err $? "Could not build MC backlog"
+
+	# Verify that we actually see the backlog on BUM TC. Do a busywait as
+	# well, performance blips might cause false fail.
+	local ebl
+	ebl=$(busywait 5000 until_counter_is ">= 500000" \
+		       get_mc_transmit_queue $vlan)
+	check_err $? "MC backlog reported by qdisc not visible in ethtool"
+
+	log_test "TC $((vlan - 10)): Qdisc reports MC backlog"
+}
+
+do_mc_backlog_test()
+{
+	in_defer_scope \
+		__do_mc_backlog_test "$@"
+}
+
+__do_mark_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local subtest=$1; shift
+	local fetch_counter=$1; shift
+	local should_fail=$1; shift
+	local base
+
+	mlxsw_only_on_spectrum 2+ || return
+
+	RET=0
+
+	start_tcp_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) \
+			  $h3_mac tos=0x01
+	defer stop_traffic_sleep $!
+
+	# Create a bit of a backlog and observe no mirroring due to marks.
+	qevent_rule_install_$subtest
+
+	build_backlog $vlan $((2 * limit / 3)) tcp tos=0x01 >/dev/null
+
+	base=$($fetch_counter)
+	count=$(busywait 1100 until_counter_is ">= $((base + 1))" \
+		$fetch_counter)
+	check_fail $? "Spurious packets ($base -> $count) observed without buffer pressure"
+
+	# Above limit, everything should be mirrored, we should see lots of
+	# packets.
+	build_backlog $vlan $((3 * limit / 2)) tcp tos=0x01 >/dev/null
+	busywait_for_counter 1100 +2500 \
+		 $fetch_counter > /dev/null
+	check_err_fail "$should_fail" $? "ECN-marked packets $subtest'd"
+
+	# When the rule is uninstalled, there should be no mirroring.
+	qevent_rule_uninstall_$subtest
+	busywait_for_counter 1100 +10 \
+		 $fetch_counter > /dev/null
+	check_fail $? "Spurious packets observed after uninstall"
+
+	if ((should_fail)); then
+		log_test "TC $((vlan - 10)): marked packets not $subtest'd"
+	else
+		log_test "TC $((vlan - 10)): marked packets $subtest'd"
+	fi
+}
+
+do_mark_test()
+{
+	in_defer_scope \
+		__do_mark_test "$@"
+}
+
+__do_drop_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local trigger=$1; shift
+	local subtest=$1; shift
+	local fetch_counter=$1; shift
+	local base
+	local now
+
+	mlxsw_only_on_spectrum 2+ || return
+
+	RET=0
+
+	start_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 3 $vlan) $h3_mac
+	defer stop_traffic_sleep $!
+
+	# Create a bit of a backlog and observe no mirroring due to drops.
+	qevent_rule_install_$subtest
+	base=$($fetch_counter)
+
+	build_backlog $vlan $((2 * limit / 3)) udp >/dev/null
+
+	busywait 1100 until_counter_is ">= $((base + 1))" $fetch_counter >/dev/null
+	check_fail $? "Spurious packets observed without buffer pressure"
+
+	# Push to the queue until it's at the limit. The configured limit is
+	# rounded by the qdisc and then by the driver, so this is the best we
+	# can do to get to the real limit of the system.
+	build_backlog $vlan $((3 * limit / 2)) udp >/dev/null
+
+	base=$($fetch_counter)
+	send_packets $vlan udp 100
+
+	now=$(busywait 1100 until_counter_is ">= $((base + 95))" $fetch_counter)
+	check_err $? "${trigger}ped packets not observed: 100 expected, $((now - base)) seen"
+
+	# When no extra traffic is injected, there should be no mirroring.
+	busywait 1100 until_counter_is ">= $((base + 110))" \
+		 $fetch_counter >/dev/null
+	check_fail $? "Spurious packets observed"
+
+	# When the rule is uninstalled, there should be no mirroring.
+	qevent_rule_uninstall_$subtest
+	send_packets $vlan udp 100
+	now=$(busywait 1100 until_counter_is ">= $((base + 110))" \
+		       $fetch_counter)
+	check_fail $? "$((now - base)) spurious packets observed after uninstall"
+
+	log_test "TC $((vlan - 10)): ${trigger}ped packets $subtest'd"
+}
+
+do_drop_test()
+{
+	in_defer_scope \
+		__do_drop_test "$@"
+}
+
+qevent_rule_install_mirror()
+{
+	tc filter add block 10 pref 1234 handle 102 matchall skip_sw \
+	   action mirred egress mirror dev $swp2 hw_stats disabled
+}
+
+qevent_rule_uninstall_mirror()
+{
+	tc filter del block 10 pref 1234 handle 102 matchall
+}
+
+qevent_counter_fetch_mirror()
+{
+	tc_rule_handle_stats_get "dev $h2 ingress" 101
+}
+
+do_drop_mirror_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local qevent_name=$1; shift
+
+	tc filter add dev $h2 ingress pref 1 handle 101 prot ip \
+	   flower skip_sw ip_proto udp \
+	   action drop
+
+	do_drop_test "$vlan" "$limit" "$qevent_name" mirror \
+		     qevent_counter_fetch_mirror
+
+	tc filter del dev $h2 ingress pref 1 handle 101 flower
+}
+
+do_mark_mirror_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+
+	tc filter add dev $h2 ingress pref 1 handle 101 prot ip \
+	   flower skip_sw ip_proto tcp \
+	   action drop
+
+	do_mark_test "$vlan" "$limit" mirror \
+		     qevent_counter_fetch_mirror \
+		     $(: should_fail=)0
+
+	tc filter del dev $h2 ingress pref 1 handle 101 flower
+}
+
+qevent_rule_install_trap()
+{
+	tc filter add block 10 pref 1234 handle 102 matchall skip_sw \
+	   action trap hw_stats disabled
+}
+
+qevent_rule_uninstall_trap()
+{
+	tc filter del block 10 pref 1234 handle 102 matchall
+}
+
+qevent_counter_fetch_trap()
+{
+	local trap_name=$1; shift
+
+	devlink_trap_rx_packets_get "$trap_name"
+}
+
+do_drop_trap_test()
+{
+	local vlan=$1; shift
+	local limit=$1; shift
+	local trap_name=$1; shift
+
+	do_drop_test "$vlan" "$limit" "$trap_name" trap \
+		     "qevent_counter_fetch_trap $trap_name"
+}
+
+qevent_rule_install_trap_fwd()
+{
+	tc filter add block 10 pref 1234 handle 102 matchall skip_sw \
+	   action trap_fwd hw_stats disabled
+}
+
+qevent_rule_uninstall_trap_fwd()
+{
+	tc filter del block 10 pref 1234 handle 102 matchall
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh
new file mode 100755
index 000000000000..8902a115d9cd
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_ets.sh
@@ -0,0 +1,168 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	ping_ipv4
+	ecn_test
+	ecn_test_perband
+	ecn_nodrop_test
+	red_test
+	mc_backlog_test
+	red_mirror_test
+	red_trap_test
+	ecn_mirror_test
+"
+: ${QDISC:=ets}
+source sch_red_core.sh
+
+# do_ecn_test first build 2/3 of the requested backlog and expects no marking,
+# and then builds 3/2 of it and does expect marking. The values of $BACKLOG1 and
+# $BACKLOG2 are far enough not to overlap, so that we can assume that if we do
+# see (do not see) marking, it is actually due to the configuration of that one
+# TC, and not due to configuration of the other TC leaking over.
+BACKLOG1=400000
+BACKLOG2=1000000
+
+install_root_qdisc()
+{
+	tc qdisc add dev $swp3 parent 1: handle 10: $QDISC \
+	   bands 8 priomap 7 6 5 4 3 2 1 0
+}
+
+install_qdisc_tc0()
+{
+	local -a args=("$@")
+
+	tc qdisc add dev $swp3 parent 10:8 handle 108: red \
+	   limit 1000000 min $BACKLOG1 max $((BACKLOG1 + 1)) \
+	   probability 1.0 avpkt 8000 burst 51 "${args[@]}"
+}
+
+install_qdisc_tc1()
+{
+	local -a args=("$@")
+
+	tc qdisc add dev $swp3 parent 10:7 handle 107: red \
+	   limit 1000000 min $BACKLOG2 max $((BACKLOG2 + 1)) \
+	   probability 1.0 avpkt 8000 burst 126 "${args[@]}"
+}
+
+install_qdisc()
+{
+	install_root_qdisc
+	install_qdisc_tc0 "$@"
+	install_qdisc_tc1 "$@"
+	sleep 1
+}
+
+uninstall_qdisc_tc0()
+{
+	tc qdisc del dev $swp3 parent 10:8
+}
+
+uninstall_qdisc_tc1()
+{
+	tc qdisc del dev $swp3 parent 10:7
+}
+
+uninstall_root_qdisc()
+{
+	tc qdisc del dev $swp3 parent 1:
+}
+
+uninstall_qdisc()
+{
+	uninstall_qdisc_tc0
+	uninstall_qdisc_tc1
+	uninstall_root_qdisc
+}
+
+ecn_test()
+{
+	install_qdisc ecn
+	defer uninstall_qdisc
+
+	do_ecn_test 10 $BACKLOG1
+	do_ecn_test 11 $BACKLOG2
+}
+
+ecn_test_perband()
+{
+	install_qdisc ecn
+	defer uninstall_qdisc
+
+	do_ecn_test_perband 10 $BACKLOG1
+	do_ecn_test_perband 11 $BACKLOG2
+}
+
+ecn_nodrop_test()
+{
+	install_qdisc ecn nodrop
+	defer uninstall_qdisc
+
+	do_ecn_nodrop_test 10 $BACKLOG1
+	do_ecn_nodrop_test 11 $BACKLOG2
+}
+
+red_test()
+{
+	install_qdisc
+	defer uninstall_qdisc
+
+	# Make sure that we get the non-zero value if there is any.
+	local cur=$(busywait 1100 until_counter_is "> 0" \
+			    qdisc_stats_get $swp3 10: .backlog)
+	(( cur == 0 ))
+	check_err $? "backlog of $cur observed on non-busy qdisc"
+	log_test "$QDISC backlog properly cleaned"
+
+	do_red_test 10 $BACKLOG1
+	do_red_test 11 $BACKLOG2
+}
+
+mc_backlog_test()
+{
+	install_qdisc
+	defer uninstall_qdisc
+
+	# Note that the backlog numbers here do not correspond to RED
+	# configuration, but are arbitrary.
+	do_mc_backlog_test 10 $BACKLOG1
+	do_mc_backlog_test 11 $BACKLOG2
+}
+
+red_mirror_test()
+{
+	install_qdisc qevent early_drop block 10
+	defer uninstall_qdisc
+
+	do_drop_mirror_test 10 $BACKLOG1 early_drop
+	do_drop_mirror_test 11 $BACKLOG2 early_drop
+}
+
+red_trap_test()
+{
+	install_qdisc qevent early_drop block 10
+	defer uninstall_qdisc
+
+	do_drop_trap_test 10 $BACKLOG1 early_drop
+	do_drop_trap_test 11 $BACKLOG2 early_drop
+}
+
+ecn_mirror_test()
+{
+	install_qdisc ecn qevent mark block 10
+	defer uninstall_qdisc
+
+	do_mark_mirror_test 10 $BACKLOG1
+	do_mark_mirror_test 11 $BACKLOG2
+}
+
+bail_on_lldpad "configure DCB" "configure Qdiscs"
+
+trap cleanup EXIT
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_prio.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_prio.sh
new file mode 100755
index 000000000000..76820a0e9a1b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_prio.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+QDISC=prio
+source sch_red_ets.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh
new file mode 100755
index 000000000000..e9043771787b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_red_root.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	ping_ipv4
+	ecn_test
+	ecn_test_perband
+	ecn_nodrop_test
+	red_test
+	mc_backlog_test
+	red_mirror_test
+"
+source sch_red_core.sh
+
+BACKLOG=300000
+
+install_qdisc()
+{
+	local -a args=("$@")
+
+	tc qdisc add dev $swp3 parent 1: handle 108: red \
+	   limit 1000000 min $BACKLOG max $((BACKLOG + 1)) \
+	   probability 1.0 avpkt 8000 burst 38 "${args[@]}"
+	sleep 1
+}
+
+uninstall_qdisc()
+{
+	tc qdisc del dev $swp3 parent 1:
+}
+
+ecn_test()
+{
+	install_qdisc ecn
+	defer uninstall_qdisc
+
+	do_ecn_test 10 $BACKLOG
+}
+
+ecn_test_perband()
+{
+	install_qdisc ecn
+	defer uninstall_qdisc
+
+	do_ecn_test_perband 10 $BACKLOG
+}
+
+ecn_nodrop_test()
+{
+	install_qdisc ecn nodrop
+	defer uninstall_qdisc
+
+	do_ecn_nodrop_test 10 $BACKLOG
+}
+
+red_test()
+{
+	install_qdisc
+	defer uninstall_qdisc
+
+	do_red_test 10 $BACKLOG
+}
+
+mc_backlog_test()
+{
+	install_qdisc
+	defer uninstall_qdisc
+
+	# Note that the backlog value here does not correspond to RED
+	# configuration, but is arbitrary.
+	do_mc_backlog_test 10 $BACKLOG
+}
+
+red_mirror_test()
+{
+	install_qdisc qevent early_drop block 10
+	defer uninstall_qdisc
+
+	do_drop_mirror_test 10 $BACKLOG
+}
+
+bail_on_lldpad "configure DCB" "configure Qdiscs"
+
+trap cleanup EXIT
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh
new file mode 100755
index 000000000000..ecc3664376b3
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_ets.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+sch_tbf_pre_hook()
+{
+	bail_on_lldpad "configure DCB" "configure Qdiscs"
+}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+TCFLAGS=skip_sw
+source $lib_dir/sch_tbf_ets.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh
new file mode 100755
index 000000000000..2e0a4efb1703
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_prio.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+sch_tbf_pre_hook()
+{
+	bail_on_lldpad "configure DCB" "configure Qdiscs"
+}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+TCFLAGS=skip_sw
+source $lib_dir/sch_tbf_prio.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh
new file mode 100755
index 000000000000..6679a338dfc4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sch_tbf_root.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+sch_tbf_pre_hook()
+{
+	bail_on_lldpad "configure DCB" "configure Qdiscs"
+}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+TCFLAGS=skip_sw
+source $lib_dir/sch_tbf_root.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer.sh b/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer.sh
new file mode 100755
index 000000000000..c068e6c2a580
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer.sh
@@ -0,0 +1,243 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	port_pool_test
+	port_tc_ip_test
+	port_tc_arp_test
+"
+
+NUM_NETIFS=2
+source ../../../net/forwarding/lib.sh
+source ../../../net/forwarding/devlink_lib.sh
+source mlxsw_lib.sh
+
+SB_POOL_ING=0
+SB_POOL_EGR_CPU=10
+
+SB_ITC_CPU_IP=2
+SB_ITC_CPU_ARP=2
+SB_ITC=0
+
+h1_create()
+{
+	simple_if_init $h1 192.0.1.1/24
+	tc qdisc add dev $h1 clsact
+
+	# Add egress filter on $h1 that will guarantee that the packet sent,
+	# will be the only packet being passed to the device.
+	tc filter add dev $h1 egress pref 2 handle 102 matchall action drop
+}
+
+h1_destroy()
+{
+	tc filter del dev $h1 egress pref 2 handle 102 matchall action drop
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.1.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.1.2/24
+	tc qdisc add dev $h2 clsact
+
+	# Add egress filter on $h2 that will guarantee that the packet sent,
+	# will be the only packet being passed to the device.
+	tc filter add dev $h2 egress pref 1 handle 101 matchall action drop
+}
+
+h2_destroy()
+{
+	tc filter del dev $h2 egress pref 1 handle 101 matchall action drop
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.1.2/24
+}
+
+sb_occ_pool_check()
+{
+	local dl_port=$1; shift
+	local pool=$1; shift
+	local exp_max_occ=$1
+	local max_occ
+	local err=0
+
+	max_occ=$(devlink sb -j occupancy show $dl_port \
+		  | jq -e ".[][][\"pool\"][\"$pool\"][\"max\"]")
+
+	if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
+		err=1
+	fi
+
+	echo $max_occ
+	return $err
+}
+
+sb_occ_itc_check()
+{
+	local dl_port=$1; shift
+	local itc=$1; shift
+	local exp_max_occ=$1
+	local max_occ
+	local err=0
+
+	max_occ=$(devlink sb -j occupancy show $dl_port \
+		  | jq -e ".[][][\"itc\"][\"$itc\"][\"max\"]")
+
+	if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
+		err=1
+	fi
+
+	echo $max_occ
+	return $err
+}
+
+sb_occ_etc_check()
+{
+	local dl_port=$1; shift
+	local etc=$1; shift
+	local exp_max_occ=$1; shift
+	local max_occ
+	local err=0
+
+	max_occ=$(devlink sb -j occupancy show $dl_port \
+		  | jq -e ".[][][\"etc\"][\"$etc\"][\"max\"]")
+
+	if [[ "$max_occ" -ne "$exp_max_occ" ]]; then
+		err=1
+	fi
+
+	echo $max_occ
+	return $err
+}
+
+port_pool_test()
+{
+	local exp_max_occ=$(devlink_cell_size_get)
+	local max_occ
+
+	tc filter add dev $h1 egress protocol ip pref 1 handle 101 flower \
+		src_mac $h1mac dst_mac $h2mac \
+		src_ip 192.0.1.1 dst_ip 192.0.1.2 \
+		action pass
+
+	devlink sb occupancy clearmax $DEVLINK_DEV
+
+	$MZ $h1 -c 1 -p 10 -a $h1mac -b $h2mac -A 192.0.1.1 -B 192.0.1.2 \
+		-t ip -q
+
+	devlink sb occupancy snapshot $DEVLINK_DEV
+
+	RET=0
+	max_occ=$(sb_occ_pool_check $dl_port2 $SB_POOL_ING $exp_max_occ)
+	check_err $? "Expected iPool($SB_POOL_ING) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "physical port's($h2) ingress pool"
+
+	RET=0
+	max_occ=$(sb_occ_pool_check $cpu_dl_port $SB_POOL_EGR_CPU $exp_max_occ)
+	check_err $? "Expected ePool($SB_POOL_EGR_CPU) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "CPU port's egress pool"
+
+	tc filter del dev $h1 egress protocol ip pref 1 handle 101 flower \
+		src_mac $h1mac dst_mac $h2mac \
+		src_ip 192.0.1.1 dst_ip 192.0.1.2 \
+		action pass
+}
+
+port_tc_ip_test()
+{
+	local exp_max_occ=$(devlink_cell_size_get)
+	local max_occ
+
+	tc filter add dev $h1 egress protocol ip pref 1 handle 101 flower \
+		src_mac $h1mac dst_mac $h2mac \
+		src_ip 192.0.1.1 dst_ip 192.0.1.2 \
+		action pass
+
+	devlink sb occupancy clearmax $DEVLINK_DEV
+
+	$MZ $h1 -c 1 -p 10 -a $h1mac -b $h2mac -A 192.0.1.1 -B 192.0.1.2 \
+		-t ip -q
+
+	devlink sb occupancy snapshot $DEVLINK_DEV
+
+	RET=0
+	max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
+	check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "physical port's($h2) ingress TC - IP packet"
+
+	RET=0
+	max_occ=$(sb_occ_etc_check $cpu_dl_port $SB_ITC_CPU_IP $exp_max_occ)
+	check_err $? "Expected egress TC($SB_ITC_CPU_IP) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "CPU port's egress TC - IP packet"
+
+	tc filter del dev $h1 egress protocol ip pref 1 handle 101 flower \
+		src_mac $h1mac dst_mac $h2mac \
+		src_ip 192.0.1.1 dst_ip 192.0.1.2 \
+		action pass
+}
+
+port_tc_arp_test()
+{
+	local exp_max_occ=$(devlink_cell_size_get)
+	local max_occ
+
+	tc filter add dev $h1 egress protocol arp pref 1 handle 101 flower \
+		src_mac $h1mac action pass
+
+	devlink sb occupancy clearmax $DEVLINK_DEV
+
+	$MZ $h1 -c 1 -p 10 -a $h1mac -A 192.0.1.1 -t arp -q
+
+	devlink sb occupancy snapshot $DEVLINK_DEV
+
+	RET=0
+	max_occ=$(sb_occ_itc_check $dl_port2 $SB_ITC $exp_max_occ)
+	check_err $? "Expected ingress TC($SB_ITC) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "physical port's($h2) ingress TC - ARP packet"
+
+	RET=0
+	max_occ=$(sb_occ_etc_check $cpu_dl_port $SB_ITC_CPU_ARP $exp_max_occ)
+	check_err $? "Expected egress TC($SB_ITC_IP2ME) max occupancy to be $exp_max_occ, but got $max_occ"
+	log_test "CPU port's egress TC - ARP packet"
+
+	tc filter del dev $h1 egress protocol arp pref 1 handle 101 flower \
+		src_mac $h1mac action pass
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	dl_port1=$(devlink_port_by_netdev $h1)
+	dl_port2=$(devlink_port_by_netdev $h2)
+
+	cpu_dl_port=$(devlink_cpu_port_get)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer_configuration.py b/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer_configuration.py
new file mode 100755
index 000000000000..2223337eed0c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/sharedbuffer_configuration.py
@@ -0,0 +1,416 @@
+#!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
+
+import subprocess
+import json as j
+import random
+
+
+class SkipTest(Exception):
+    pass
+
+
+class RandomValuePicker:
+    """
+    Class for storing shared buffer configuration. Can handle 3 different
+    objects, pool, tcbind and portpool. Provide an interface to get random
+    values for a specific object type as the follow:
+      1. Pool:
+         - random size
+
+      2. TcBind:
+         - random pool number
+         - random threshold
+
+      3. PortPool:
+         - random threshold
+    """
+    def __init__(self, pools):
+        self._pools = []
+        for pool in pools:
+            self._pools.append(pool)
+
+    def _cell_size(self):
+        return self._pools[0]["cell_size"]
+
+    def _get_static_size(self, th):
+        # For threshold of 16, this works out to be about 12MB on Spectrum-1,
+        # and about 17MB on Spectrum-2.
+        return th * 8000 * self._cell_size()
+
+    def _get_size(self):
+        return self._get_static_size(16)
+
+    def _get_thtype(self):
+        return "static"
+
+    def _get_th(self, pool):
+        # Threshold value could be any integer between 3 to 16
+        th = random.randint(3, 16)
+        if pool["thtype"] == "dynamic":
+            return th
+        else:
+            return self._get_static_size(th)
+
+    def _get_pool(self, direction):
+        ing_pools = []
+        egr_pools = []
+        for pool in self._pools:
+            if pool["type"] == "ingress":
+                ing_pools.append(pool)
+            else:
+                egr_pools.append(pool)
+        if direction == "ingress":
+            arr = ing_pools
+        else:
+            arr = egr_pools
+        return arr[random.randint(0, len(arr) - 1)]
+
+    def get_value(self, objid):
+        if isinstance(objid, Pool):
+            if objid["pool"] in [4, 8, 9, 10]:
+                # The threshold type of pools 4, 8, 9 and 10 cannot be changed
+                raise SkipTest()
+            else:
+                return (self._get_size(), self._get_thtype())
+        if isinstance(objid, TcBind):
+            if objid["tc"] >= 8:
+                # Multicast TCs cannot be changed
+                raise SkipTest()
+            else:
+                pool = self._get_pool(objid["type"])
+                th = self._get_th(pool)
+                pool_n = pool["pool"]
+                return (pool_n, th)
+        if isinstance(objid, PortPool):
+            pool_n = objid["pool"]
+            pool = self._pools[pool_n]
+            assert pool["pool"] == pool_n
+            th = self._get_th(pool)
+            return (th,)
+
+
+class RecordValuePickerException(Exception):
+    pass
+
+
+class RecordValuePicker:
+    """
+    Class for storing shared buffer configuration. Can handle 2 different
+    objects, pool and tcbind. Provide an interface to get the stored values per
+    object type.
+    """
+    def __init__(self, objlist):
+        self._recs = []
+        for item in objlist:
+            self._recs.append({"objid": item, "value": item.var_tuple()})
+
+    def get_value(self, objid):
+        if isinstance(objid, Pool) and objid["pool"] in [4, 8, 9, 10]:
+            # The threshold type of pools 4, 8, 9 and 10 cannot be changed
+            raise SkipTest()
+        if isinstance(objid, TcBind) and objid["tc"] >= 8:
+            # Multicast TCs cannot be changed
+            raise SkipTest()
+        for rec in self._recs:
+            if rec["objid"].weak_eq(objid):
+                return rec["value"]
+        raise RecordValuePickerException()
+
+
+def run_cmd(cmd, json=False):
+    out = subprocess.check_output(cmd, shell=True)
+    if json:
+        return j.loads(out)
+    return out
+
+
+def run_json_cmd(cmd):
+    return run_cmd(cmd, json=True)
+
+
+def log_test(test_name, err_msg=None):
+    if err_msg:
+        print("\t%s" % err_msg)
+        print("TEST: %-80s  [FAIL]" % test_name)
+    else:
+        print("TEST: %-80s  [ OK ]" % test_name)
+
+
+class CommonItem(dict):
+    varitems = []
+
+    def var_tuple(self):
+        ret = []
+        self.varitems.sort()
+        for key in self.varitems:
+            ret.append(self[key])
+        return tuple(ret)
+
+    def weak_eq(self, other):
+        for key in self:
+            if key in self.varitems:
+                continue
+            if self[key] != other[key]:
+                return False
+        return True
+
+
+class CommonList(list):
+    def get_by(self, by_obj):
+        for item in self:
+            if item.weak_eq(by_obj):
+                return item
+        return None
+
+    def del_by(self, by_obj):
+        for item in self:
+            if item.weak_eq(by_obj):
+                self.remove(item)
+
+
+class Pool(CommonItem):
+    varitems = ["size", "thtype"]
+
+    def dl_set(self, dlname, size, thtype):
+        run_cmd("devlink sb pool set {} sb {} pool {} size {} thtype {}".format(dlname, self["sb"],
+                                                                                self["pool"],
+                                                                                size, thtype))
+
+
+class PoolList(CommonList):
+    pass
+
+
+def get_pools(dlname, direction=None):
+    d = run_json_cmd("devlink sb pool show -j")
+    pools = PoolList()
+    for pooldict in d["pool"][dlname]:
+        if not direction or direction == pooldict["type"]:
+            pools.append(Pool(pooldict))
+    return pools
+
+
+def do_check_pools(dlname, pools, vp):
+    for pool in pools:
+        pre_pools = get_pools(dlname)
+        try:
+            (size, thtype) = vp.get_value(pool)
+        except SkipTest:
+            continue
+        pool.dl_set(dlname, size, thtype)
+        post_pools = get_pools(dlname)
+        pool = post_pools.get_by(pool)
+
+        err_msg = None
+        if pool["size"] != size:
+            err_msg = "Incorrect pool size (got {}, expected {})".format(pool["size"], size)
+        if pool["thtype"] != thtype:
+            err_msg = "Incorrect pool threshold type (got {}, expected {})".format(pool["thtype"], thtype)
+
+        pre_pools.del_by(pool)
+        post_pools.del_by(pool)
+        if pre_pools != post_pools:
+            err_msg = "Other pool setup changed as well"
+        log_test("pool {} of sb {} set verification".format(pool["pool"],
+                                                            pool["sb"]), err_msg)
+
+
+def check_pools(dlname, pools):
+    # Save defaults
+    record_vp = RecordValuePicker(pools)
+
+    # For each pool, set random size and static threshold type
+    do_check_pools(dlname, pools, RandomValuePicker(pools))
+
+    # Restore defaults
+    do_check_pools(dlname, pools, record_vp)
+
+
+class TcBind(CommonItem):
+    varitems = ["pool", "threshold"]
+
+    def __init__(self, port, d):
+        super(TcBind, self).__init__(d)
+        self["dlportname"] = port.name
+
+    def dl_set(self, pool, th):
+        run_cmd("devlink sb tc bind set {} sb {} tc {} type {} pool {} th {}".format(self["dlportname"],
+                                                                                     self["sb"],
+                                                                                     self["tc"],
+                                                                                     self["type"],
+                                                                                     pool, th))
+
+
+class TcBindList(CommonList):
+    pass
+
+
+def get_tcbinds(ports, verify_existence=False):
+    d = run_json_cmd("devlink sb tc bind show -j -n")
+    tcbinds = TcBindList()
+    for port in ports:
+        err_msg = None
+        if port.name not in d["tc_bind"] or len(d["tc_bind"][port.name]) == 0:
+            err_msg = "No tc bind for port"
+        else:
+            for tcbinddict in d["tc_bind"][port.name]:
+                tcbinds.append(TcBind(port, tcbinddict))
+        if verify_existence:
+            log_test("tc bind existence for port {} verification".format(port.name), err_msg)
+    return tcbinds
+
+
+def do_check_tcbind(ports, tcbinds, vp):
+    for tcbind in tcbinds:
+        pre_tcbinds = get_tcbinds(ports)
+        try:
+            (pool, th) = vp.get_value(tcbind)
+        except SkipTest:
+            continue
+        tcbind.dl_set(pool, th)
+        post_tcbinds = get_tcbinds(ports)
+        tcbind = post_tcbinds.get_by(tcbind)
+
+        err_msg = None
+        if tcbind["pool"] != pool:
+            err_msg = "Incorrect pool (got {}, expected {})".format(tcbind["pool"], pool)
+        if tcbind["threshold"] != th:
+            err_msg = "Incorrect threshold (got {}, expected {})".format(tcbind["threshold"], th)
+
+        pre_tcbinds.del_by(tcbind)
+        post_tcbinds.del_by(tcbind)
+        if pre_tcbinds != post_tcbinds:
+            err_msg = "Other tc bind setup changed as well"
+        log_test("tc bind {}-{} of sb {} set verification".format(tcbind["dlportname"],
+                                                                  tcbind["tc"],
+                                                                  tcbind["sb"]), err_msg)
+
+
+def check_tcbind(dlname, ports, pools):
+    tcbinds = get_tcbinds(ports, verify_existence=True)
+
+    # Save defaults
+    record_vp = RecordValuePicker(tcbinds)
+
+    # Bind each port and unicast TC (TCs < 8) to a random pool and a random
+    # threshold
+    do_check_tcbind(ports, tcbinds, RandomValuePicker(pools))
+
+    # Restore defaults
+    do_check_tcbind(ports, tcbinds, record_vp)
+
+
+class PortPool(CommonItem):
+    varitems = ["threshold"]
+
+    def __init__(self, port, d):
+        super(PortPool, self).__init__(d)
+        self["dlportname"] = port.name
+
+    def dl_set(self, th):
+        run_cmd("devlink sb port pool set {} sb {} pool {} th {}".format(self["dlportname"],
+                                                                         self["sb"],
+                                                                         self["pool"], th))
+
+
+class PortPoolList(CommonList):
+    pass
+
+
+def get_portpools(ports, verify_existence=False):
+    d = run_json_cmd("devlink sb port pool -j -n")
+    portpools = PortPoolList()
+    for port in ports:
+        err_msg = None
+        if port.name not in d["port_pool"] or len(d["port_pool"][port.name]) == 0:
+            err_msg = "No port pool for port"
+        else:
+            for portpooldict in d["port_pool"][port.name]:
+                portpools.append(PortPool(port, portpooldict))
+        if verify_existence:
+            log_test("port pool existence for port {} verification".format(port.name), err_msg)
+    return portpools
+
+
+def do_check_portpool(ports, portpools, vp):
+    for portpool in portpools:
+        pre_portpools = get_portpools(ports)
+        (th,) = vp.get_value(portpool)
+        portpool.dl_set(th)
+        post_portpools = get_portpools(ports)
+        portpool = post_portpools.get_by(portpool)
+
+        err_msg = None
+        if portpool["threshold"] != th:
+            err_msg = "Incorrect threshold (got {}, expected {})".format(portpool["threshold"], th)
+
+        pre_portpools.del_by(portpool)
+        post_portpools.del_by(portpool)
+        if pre_portpools != post_portpools:
+            err_msg = "Other port pool setup changed as well"
+        log_test("port pool {}-{} of sb {} set verification".format(portpool["dlportname"],
+                                                                    portpool["pool"],
+                                                                    portpool["sb"]), err_msg)
+
+
+def check_portpool(dlname, ports, pools):
+    portpools = get_portpools(ports, verify_existence=True)
+
+    # Save defaults
+    record_vp = RecordValuePicker(portpools)
+
+    # For each port pool, set a random threshold
+    do_check_portpool(ports, portpools, RandomValuePicker(pools))
+
+    # Restore defaults
+    do_check_portpool(ports, portpools, record_vp)
+
+
+class Port:
+    def __init__(self, name):
+        self.name = name
+
+
+class PortList(list):
+    pass
+
+
+def get_ports(dlname):
+    d = run_json_cmd("devlink port show -j")
+    ports = PortList()
+    for name in d["port"]:
+        if name.find(dlname) == 0 and d["port"][name]["flavour"] == "physical":
+            ports.append(Port(name))
+    return ports
+
+
+def get_device():
+    devices_info = run_json_cmd("devlink -j dev info")["info"]
+    for d in devices_info:
+        if "mlxsw_spectrum" in devices_info[d]["driver"]:
+            return d
+    return None
+
+
+class UnavailableDevlinkNameException(Exception):
+    pass
+
+
+def test_sb_configuration():
+    # Use static seed
+    random.seed(0)
+
+    dlname = get_device()
+    if not dlname:
+        raise UnavailableDevlinkNameException()
+
+    ports = get_ports(dlname)
+    pools = get_pools(dlname)
+
+    check_pools(dlname, pools)
+    check_tcbind(dlname, ports, pools)
+    check_portpool(dlname, ports, pools)
+
+
+test_sb_configuration()
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/mirror_gre_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/mirror_gre_scale.sh
new file mode 100644
index 000000000000..f7c168decd1e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/mirror_gre_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../mirror_gre_scale.sh
+
+mirror_gre_get_target()
+{
+	local should_fail=$1; shift
+	local target
+
+	target=$(devlink_resource_size_get span_agents)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_range_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_range_scale.sh
new file mode 120000
index 000000000000..bd670d9dc4e5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_range_scale.sh
@@ -0,0 +1 @@
+../spectrum/port_range_scale.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_scale.sh
new file mode 100644
index 000000000000..0b71dfbbb447
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/port_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../port_scale.sh
+
+port_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get physical_ports)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
new file mode 100755
index 000000000000..d7505b933aef
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+source ../mlxsw_lib.sh
+
+mlxsw_only_on_spectrum 2+ || exit 1
+
+current_test=""
+
+cleanup()
+{
+	pre_cleanup
+	if [ ! -z $current_test ]; then
+		${current_test}_cleanup
+	fi
+	# Need to reload in order to avoid router abort.
+	devlink_reload
+}
+
+trap cleanup EXIT
+
+ALL_TESTS="
+	router
+	tc_flower
+	mirror_gre
+	tc_police
+	port
+	rif_mac_profile
+	rif_counter
+	port_range
+"
+
+for current_test in ${TESTS:-$ALL_TESTS}; do
+	RET_FIN=0
+	source ${current_test}_scale.sh
+
+	num_netifs_var=${current_test^^}_NUM_NETIFS
+	num_netifs=${!num_netifs_var:-$NUM_NETIFS}
+
+	for should_fail in 0 1; do
+		RET=0
+		target=$(${current_test}_get_target "$should_fail")
+		if ((target == 0)); then
+			continue
+		fi
+
+		${current_test}_setup_prepare
+		setup_wait_n $num_netifs
+		# Update target in case occupancy of a certain resource changed
+		# following the test setup.
+		target=$(${current_test}_get_target "$should_fail")
+		${current_test}_test "$target" "$should_fail"
+		if [[ "$should_fail" -eq 0 ]]; then
+			log_test "'$current_test' $target"
+
+			if ((!RET)); then
+				tt=${current_test}_traffic_test
+				if [[ $(type -t $tt) == "function" ]]; then
+					$tt "$target"
+					log_test "'$current_test' $target traffic test"
+				fi
+			fi
+		else
+			log_test "'$current_test' overflow $target"
+		fi
+		${current_test}_cleanup $target
+		devlink_reload
+		RET_FIN=$(( RET_FIN || RET ))
+	done
+done
+current_test=""
+
+exit "$RET_FIN"
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh
new file mode 120000
index 000000000000..1f5752e8ffc0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh
@@ -0,0 +1 @@
+../spectrum/rif_counter_scale.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_mac_profile_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_mac_profile_scale.sh
new file mode 100644
index 000000000000..303d7cbe3c45
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_mac_profile_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../rif_mac_profile_scale.sh
+
+rif_mac_profile_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get rif_mac_profiles)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/router_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/router_scale.sh
new file mode 100644
index 000000000000..1897e163e3ab
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/router_scale.sh
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../router_scale.sh
+
+router_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get kvd)
+
+	if [[ $should_fail -eq 0 ]]; then
+		target=$((target * 85 / 100))
+	else
+		target=$((target + 1))
+	fi
+
+	echo $target
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
new file mode 100755
index 000000000000..4994bea5daf8
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower.sh
@@ -0,0 +1,1176 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking the A-TCAM and C-TCAM operation in Spectrum-2.
+# It tries to exercise as many code paths in the eRP state machine as
+# possible.
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+ALL_TESTS="single_mask_test identical_filters_test two_masks_test \
+	multiple_masks_test ctcam_edge_cases_test delta_simple_test \
+	delta_two_masks_one_key_test delta_simple_rehash_test \
+	bloom_simple_test bloom_complex_test bloom_delta_test \
+	max_erp_entries_test max_group_size_test collision_test"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source $lib_dir/devlink_lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 198.51.100.2/24
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/24 198.51.100.2/24
+}
+
+tp_record()
+{
+	local tracepoint=$1
+	local cmd=$2
+
+	perf record -q -e $tracepoint $cmd
+	return $?
+}
+
+tp_record_all()
+{
+	local tracepoint=$1
+	local seconds=$2
+
+	perf record -a -q -e $tracepoint sleep $seconds
+	return $?
+}
+
+__tp_hit_count()
+{
+	local tracepoint=$1
+
+	local perf_output=`perf script -F trace:event,trace`
+	return `echo $perf_output | grep "$tracepoint:" | wc -l`
+}
+
+tp_check_hits()
+{
+	local tracepoint=$1
+	local count=$2
+
+	__tp_hit_count $tracepoint
+	if [[ "$?" -ne "$count" ]]; then
+		return 1
+	fi
+	return 0
+}
+
+tp_check_hits_any()
+{
+	local tracepoint=$1
+
+	__tp_hit_count $tracepoint
+	if [[ "$?" -eq "0" ]]; then
+		return 1
+	fi
+	return 0
+}
+
+single_mask_test()
+{
+	# When only a single mask is required, the device uses the master
+	# mask and not the eRP table. Verify that under this mode the right
+	# filter is matched
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Single filter - did not match"
+
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 198.51.100.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 2
+	check_err $? "Two filters - did not match highest priority"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Two filters - did not match lowest priority"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Single filter - did not match after delete"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "single mask test ($tcflags)"
+}
+
+identical_filters_test()
+{
+	# When two filters that only differ in their priority are used,
+	# one needs to be inserted into the C-TCAM. This test verifies
+	# that filters are correctly spilled to C-TCAM and that the right
+	# filter is matched
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match A-TCAM filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match C-TCAM filter after A-TCAM delete"
+
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Did not match C-TCAM filter after A-TCAM add"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match A-TCAM filter after C-TCAM delete"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+	log_test "identical filters test ($tcflags)"
+}
+
+two_masks_test()
+{
+	# When more than one mask is required, the eRP table is used. This
+	# test verifies that the eRP table is correctly allocated and used
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.0.0/8 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Two filters - did not match highest priority"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Single filter - did not match"
+
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.0/24 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Two filters - did not match highest priority after add"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "two masks test ($tcflags)"
+}
+
+multiple_masks_test()
+{
+	# The number of masks in a region is limited. Once the maximum
+	# number of masks has been reached filters that require new
+	# masks are spilled to the C-TCAM. This test verifies that
+	# spillage is performed correctly and that the right filter is
+	# matched
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	local index
+
+	RET=0
+
+	NUM_MASKS=32
+	NUM_ERPS=16
+	BASE_INDEX=100
+
+	for i in $(eval echo {1..$NUM_MASKS}); do
+		index=$((BASE_INDEX - i))
+
+		if ((i > NUM_ERPS)); then
+			exp_hits=1
+			err_msg="$i filters - C-TCAM spill did not happen when it was expected"
+		else
+			exp_hits=0
+			err_msg="$i filters - C-TCAM spill happened when it should not"
+		fi
+
+		tp_record "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" \
+			"tc filter add dev $h2 ingress protocol ip pref $index \
+				handle $index \
+				flower $tcflags \
+				dst_ip 192.0.2.2/${i} src_ip 192.0.2.1/${i} \
+				action drop"
+		tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" \
+				$exp_hits
+		check_err $? "$err_msg"
+
+		$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 \
+			-B 192.0.2.2 -t ip -q
+
+		tc_check_packets "dev $h2 ingress" $index 1
+		check_err $? "$i filters - did not match highest priority (add)"
+	done
+
+	for i in $(eval echo {$NUM_MASKS..1}); do
+		index=$((BASE_INDEX - i))
+
+		$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 \
+			-B 192.0.2.2 -t ip -q
+
+		tc_check_packets "dev $h2 ingress" $index 2
+		check_err $? "$i filters - did not match highest priority (del)"
+
+		tc filter del dev $h2 ingress protocol ip pref $index \
+			handle $index flower
+	done
+
+	log_test "multiple masks test ($tcflags)"
+}
+
+ctcam_two_atcam_masks_test()
+{
+	RET=0
+
+	# First case: C-TCAM is disabled when there are two A-TCAM masks.
+	# We push a filter into the C-TCAM by using two identical filters
+	# as in identical_filters_test()
+
+	# Filter goes into A-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	# Filter goes into C-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	# Filter goes into A-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.0.0/16 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match A-TCAM filter"
+
+	# Delete both A-TCAM and C-TCAM filters and make sure the remaining
+	# A-TCAM filter still works
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match A-TCAM filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+	log_test "ctcam with two atcam masks test ($tcflags)"
+}
+
+ctcam_one_atcam_mask_test()
+{
+	RET=0
+
+	# Second case: C-TCAM is disabled when there is one A-TCAM mask.
+	# The test is similar to identical_filters_test()
+
+	# Filter goes into A-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	# Filter goes into C-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match C-TCAM filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match A-TCAM filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "ctcam with one atcam mask test ($tcflags)"
+}
+
+ctcam_no_atcam_masks_test()
+{
+	RET=0
+
+	# Third case: C-TCAM is disabled when there are no A-TCAM masks
+	# This test exercises the code path that transitions the eRP table
+	# to its initial state after deleting the last C-TCAM mask
+
+	# Filter goes into A-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	# Filter goes into C-TCAM
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "ctcam with no atcam masks test ($tcflags)"
+}
+
+ctcam_edge_cases_test()
+{
+	# When the C-TCAM is disabled after deleting the last C-TCAM
+	# mask, we want to make sure the eRP state machine is put in
+	# the correct state
+
+	ctcam_two_atcam_masks_test
+	ctcam_one_atcam_mask_test
+	ctcam_no_atcam_masks_test
+}
+
+delta_simple_test()
+{
+	# The first filter will create eRP, the second filter will fit into
+	# the first eRP with delta. Remove the first rule then and check that
+        # the eRP stays (referenced by the second filter).
+
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	tp_record "objagg:*" "tc filter add dev $h2 ingress protocol ip \
+		   pref 1 handle 101 flower $tcflags dst_ip 192.0.0.0/24 \
+		   action drop"
+	tp_check_hits "objagg:objagg_obj_root_create" 1
+	check_err $? "eRP was not created"
+
+	tp_record "objagg:*" "tc filter add dev $h2 ingress protocol ip \
+		   pref 2 handle 102 flower $tcflags dst_ip 192.0.2.2 \
+		   action drop"
+	tp_check_hits "objagg:objagg_obj_root_create" 0
+	check_err $? "eRP was incorrectly created"
+	tp_check_hits "objagg:objagg_obj_parent_assign" 1
+	check_err $? "delta was not created"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tp_record "objagg:*" "tc filter del dev $h2 ingress protocol ip \
+		   pref 1 handle 101 flower"
+	tp_check_hits "objagg:objagg_obj_root_destroy" 0
+	check_err $? "eRP was incorrectly destroyed"
+	tp_check_hits "objagg:objagg_obj_parent_unassign" 0
+	check_err $? "delta was incorrectly destroyed"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Did not match on correct filter after the first was removed"
+
+	tp_record "objagg:*" "tc filter del dev $h2 ingress protocol ip \
+		   pref 2 handle 102 flower"
+	tp_check_hits "objagg:objagg_obj_parent_unassign" 1
+	check_err $? "delta was not destroyed"
+	tp_check_hits "objagg:objagg_obj_root_destroy" 1
+	check_err $? "eRP was not destroyed"
+
+	log_test "delta simple test ($tcflags)"
+}
+
+delta_two_masks_one_key_test()
+{
+	# If 2 keys are the same and only differ in mask in a way that
+	# they belong under the same ERP (second is delta of the first),
+	# there should be C-TCAM spill.
+
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	tp_record "mlxsw:*" "tc filter add dev $h2 ingress protocol ip \
+		   pref 1 handle 101 flower $tcflags dst_ip 192.0.2.0/24 \
+		   action drop"
+	tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" 0
+	check_err $? "incorrect C-TCAM spill while inserting the first rule"
+
+	tp_record "mlxsw:*" "tc filter add dev $h2 ingress protocol ip \
+		   pref 2 handle 102 flower $tcflags dst_ip 192.0.2.2 \
+		   action drop"
+	tp_check_hits "mlxsw:mlxsw_sp_acl_atcam_entry_add_ctcam_spill" 1
+	check_err $? "C-TCAM spill did not happen while inserting the second rule"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "delta two masks one key test ($tcflags)"
+}
+
+delta_simple_rehash_test()
+{
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 0
+	check_err $? "Failed to set ACL region rehash interval"
+
+	tp_record_all mlxsw:mlxsw_sp_acl_tcam_vregion_rehash 7
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_fail $? "Rehash trace was hit even when rehash should be disabled"
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 3000
+	check_err $? "Failed to set ACL region rehash interval"
+
+	sleep 1
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.1.0/25 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.3.0/24 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tp_record_all mlxsw:* 3
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_err $? "Rehash trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate
+	check_err $? "Migrate trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate_end
+	check_err $? "Migrate end trace was not hit"
+	tp_record_all mlxsw:* 3
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_err $? "Rehash trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate
+	check_fail $? "Migrate trace was hit when no migration should happen"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate_end
+	check_fail $? "Migrate end trace was hit when no migration should happen"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Did not match on correct filter after rehash"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "delta simple rehash test ($tcflags)"
+}
+
+delta_simple_ipv6_rehash_test()
+{
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 0
+	check_err $? "Failed to set ACL region rehash interval"
+
+	tp_record_all mlxsw:mlxsw_sp_acl_tcam_vregion_rehash 7
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_fail $? "Rehash trace was hit even when rehash should be disabled"
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 3000
+	check_err $? "Failed to set ACL region rehash interval"
+
+	sleep 1
+
+	tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 101 flower \
+		$tcflags dst_ip 2001:db8:1::0/121 action drop
+	tc filter add dev $h2 ingress protocol ipv6 pref 2 handle 102 flower \
+		$tcflags dst_ip 2001:db8:2::2 action drop
+	tc filter add dev $h2 ingress protocol ipv6 pref 3 handle 103 flower \
+		$tcflags dst_ip 2001:db8:3::0/120 action drop
+
+	$MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+		-A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tp_record_all mlxsw:* 3
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_err $? "Rehash trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate
+	check_err $? "Migrate trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate_end
+	check_err $? "Migrate end trace was not hit"
+	tp_record_all mlxsw:* 3
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_err $? "Rehash trace was not hit"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate
+	check_fail $? "Migrate trace was hit when no migration should happen"
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_migrate_end
+	check_fail $? "Migrate end trace was hit when no migration should happen"
+
+	$MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+		-A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Did not match on correct filter after rehash"
+
+	tc filter del dev $h2 ingress protocol ipv6 pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 101 flower
+
+	log_test "delta simple IPv6 rehash test ($tcflags)"
+}
+
+TEST_RULE_BASE=256
+declare -a test_rules_inserted
+
+test_rule_add()
+{
+	local iface=$1
+	local tcflags=$2
+	local index=$3
+
+	if ! [ ${test_rules_inserted[$index]} ] ; then
+		test_rules_inserted[$index]=false
+	fi
+	if ${test_rules_inserted[$index]} ; then
+		return
+	fi
+
+	local number=$(( $index + $TEST_RULE_BASE ))
+	printf -v hexnumber '%x' $number
+
+	batch="${batch}filter add dev $iface ingress protocol ipv6 pref 1 \
+		handle $number flower $tcflags \
+		src_ip 2001:db8:1::$hexnumber action drop\n"
+	test_rules_inserted[$index]=true
+}
+
+test_rule_del()
+{
+	local iface=$1
+	local index=$2
+
+	if ! [ ${test_rules_inserted[$index]} ] ; then
+		test_rules_inserted[$index]=false
+	fi
+	if ! ${test_rules_inserted[$index]} ; then
+		return
+	fi
+
+	local number=$(( $index + $TEST_RULE_BASE ))
+	printf -v hexnumber '%x' $number
+
+	batch="${batch}filter del dev $iface ingress protocol ipv6 pref 1 \
+		handle $number flower\n"
+	test_rules_inserted[$index]=false
+}
+
+test_rule_add_or_remove()
+{
+	local iface=$1
+	local tcflags=$2
+	local index=$3
+
+	if ! [ ${test_rules_inserted[$index]} ] ; then
+		test_rules_inserted[$index]=false
+	fi
+	if ${test_rules_inserted[$index]} ; then
+		test_rule_del $iface $index
+	else
+		test_rule_add $iface $tcflags $index
+	fi
+}
+
+test_rule_add_or_remove_random_batch()
+{
+	local iface=$1
+	local tcflags=$2
+	local total_count=$3
+	local skip=0
+	local count=0
+	local MAXSKIP=20
+	local MAXCOUNT=20
+
+	for ((i=1;i<=total_count;i++)); do
+		if (( $skip == 0 )) && (($count == 0)); then
+			((skip=$RANDOM % $MAXSKIP + 1))
+			((count=$RANDOM % $MAXCOUNT + 1))
+		fi
+		if (( $skip != 0 )); then
+			((skip-=1))
+		else
+			((count-=1))
+			test_rule_add_or_remove $iface $tcflags $i
+		fi
+	done
+}
+
+delta_massive_ipv6_rehash_test()
+{
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 0
+	check_err $? "Failed to set ACL region rehash interval"
+
+	tp_record_all mlxsw:mlxsw_sp_acl_tcam_vregion_rehash 7
+	tp_check_hits_any mlxsw:mlxsw_sp_acl_tcam_vregion_rehash
+	check_fail $? "Rehash trace was hit even when rehash should be disabled"
+
+	RANDOM=4432897
+	declare batch=""
+	test_rule_add_or_remove_random_batch $h2 $tcflags 5000
+
+	echo -n -e $batch | tc -b -
+
+	declare batch=""
+	test_rule_add_or_remove_random_batch $h2 $tcflags 5000
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 3000
+	check_err $? "Failed to set ACL region rehash interval"
+
+	sleep 1
+
+	tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 101 flower \
+		$tcflags dst_ip 2001:db8:1::0/121 action drop
+	tc filter add dev $h2 ingress protocol ipv6 pref 2 handle 102 flower \
+		$tcflags dst_ip 2001:db8:2::2 action drop
+	tc filter add dev $h2 ingress protocol ipv6 pref 3 handle 103 flower \
+		$tcflags dst_ip 2001:db8:3::0/120 action drop
+
+	$MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+		-A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	echo -n -e $batch | tc -b -
+
+	devlink dev param set $DEVLINK_DEV \
+		name acl_region_rehash_interval cmode runtime value 0
+	check_err $? "Failed to set ACL region rehash interval"
+
+	$MZ $h1 -6 -c 1 -p 64 -a $h1mac -b $h2mac \
+		-A 2001:db8:2::1 -B 2001:db8:2::2 -t udp -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_fail $? "Matched a wrong filter after rehash"
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_err $? "Did not match on correct filter after rehash"
+
+	tc filter del dev $h2 ingress protocol ipv6 pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 101 flower
+
+	declare batch=""
+	for i in {1..5000}; do
+		test_rule_del $h2 $tcflags $i
+	done
+	echo -e $batch | tc -b -
+
+	log_test "delta massive IPv6 rehash test ($tcflags)"
+}
+
+bloom_simple_test()
+{
+	# Bloom filter requires that the eRP table is used. This test
+	# verifies that Bloom filter is not harming correctness of ACLs.
+	# First, make sure that eRP table is used and then set rule patterns
+	# which are distant enough and will result skipping a lookup after
+	# consulting the Bloom filter. Although some eRP lookups are skipped,
+	# the correct filter should be hit.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 5 handle 104 flower \
+		$tcflags dst_ip 198.51.100.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.0.0/8 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Two filters - did not match highest priority"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 104 1
+	check_err $? "Single filter - did not match"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Low prio filter - did not match"
+
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 198.0.0.0/8 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 198.51.100.1 -B 198.51.100.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Two filters - did not match highest priority after add"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 5 handle 104 flower
+
+	log_test "bloom simple test ($tcflags)"
+}
+
+bloom_complex_test()
+{
+	# Bloom filter index computation is affected from region ID, eRP
+	# ID and from the region key size. In order to exercise those parts
+	# of the Bloom filter code, use a series of regions, each with a
+	# different key size and send packet that should hit all of them.
+	local index
+
+	RET=0
+	NUM_CHAINS=4
+	BASE_INDEX=100
+
+	# Create chain with up to 2 key blocks (ip_proto only)
+	tc chain add dev $h2 ingress chain 1 protocol ip flower \
+		ip_proto tcp &> /dev/null
+	# Create chain with 2-4 key blocks (ip_proto, src MAC)
+	tc chain add dev $h2 ingress chain 2 protocol ip flower \
+		ip_proto tcp \
+		src_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF &> /dev/null
+	# Create chain with 4-8 key blocks (ip_proto, src & dst MAC, IPv4 dest)
+	tc chain add dev $h2 ingress chain 3 protocol ip flower \
+		ip_proto tcp \
+		dst_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF \
+		src_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF \
+		dst_ip 0.0.0.0/32 &> /dev/null
+	# Default chain contains all fields and therefore is 8-12 key blocks
+	tc chain add dev $h2 ingress chain 4
+
+	# We need at least 2 rules in every region to have eRP table active
+	# so create a dummy rule per chain using a different pattern
+	for i in $(eval echo {0..$NUM_CHAINS}); do
+		index=$((BASE_INDEX - 1 - i))
+		tc filter add dev $h2 ingress chain $i protocol ip \
+			pref 2 handle $index flower \
+			$tcflags ip_proto tcp action drop
+	done
+
+	# Add rules to test Bloom filter, each in a different chain
+	index=$BASE_INDEX
+	tc filter add dev $h2 ingress protocol ip \
+		pref 1 handle $((++index)) flower \
+		$tcflags dst_ip 192.0.0.0/16 action goto chain 1
+	tc filter add dev $h2 ingress chain 1 protocol ip \
+		pref 1 handle $((++index)) flower \
+		$tcflags action goto chain 2
+	tc filter add dev $h2 ingress chain 2 protocol ip \
+		pref 1 handle $((++index)) flower \
+		$tcflags src_mac $h1mac action goto chain 3
+	tc filter add dev $h2 ingress chain 3 protocol ip \
+		pref 1 handle $((++index)) flower \
+		$tcflags dst_ip 192.0.0.0/8 action goto chain 4
+	tc filter add dev $h2 ingress chain 4 protocol ip \
+		pref 1 handle $((++index)) flower \
+		$tcflags src_ip 192.0.2.0/24 action drop
+
+	# Send a packet that is supposed to hit all chains
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	for i in $(eval echo {0..$NUM_CHAINS}); do
+		index=$((BASE_INDEX + i + 1))
+		tc_check_packets "dev $h2 ingress" $index 1
+		check_err $? "Did not match chain $i"
+	done
+
+	# Rules cleanup
+	for i in $(eval echo {$NUM_CHAINS..0}); do
+		index=$((BASE_INDEX - i - 1))
+		tc filter del dev $h2 ingress chain $i \
+			pref 2 handle $index flower
+		index=$((BASE_INDEX + i + 1))
+		tc filter del dev $h2 ingress chain $i \
+			pref 1 handle $index flower
+	done
+
+	# Chains cleanup
+	for i in $(eval echo {$NUM_CHAINS..1}); do
+		tc chain del dev $h2 ingress chain $i
+	done
+
+	log_test "bloom complex test ($tcflags)"
+}
+
+
+bloom_delta_test()
+{
+	# When multiple masks are used, the eRP table is activated. When
+	# masks are close enough (delta) the masks reside on the same
+	# eRP table. This test verifies that the eRP table is correctly
+	# allocated and used in delta condition and that Bloom filter is
+	# still functional with delta.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.1.0.0/16 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.1.2.1 -B 192.1.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Single filter - did not match"
+
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.2.1.0/24 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.2.1.1 -B 192.2.1.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Delta filters - did not match second filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "bloom delta test ($tcflags)"
+}
+
+max_erp_entries_test()
+{
+	# The number of eRP entries is limited. Once the maximum number of eRPs
+	# has been reached, filters cannot be added. This test verifies that
+	# when this limit is reached, inserstion fails without crashing.
+
+	RET=0
+
+	local num_masks=32
+	local num_regions=15
+	local chain_failed
+	local mask_failed
+	local ret
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	for ((i=1; i < $num_regions; i++)); do
+		for ((j=$num_masks; j >= 0; j--)); do
+			tc filter add dev $h2 ingress chain $i protocol ip \
+				pref $i	handle $j flower $tcflags \
+				dst_ip 192.1.0.0/$j &> /dev/null
+			ret=$?
+
+			if [ $ret -ne 0 ]; then
+				chain_failed=$i
+				mask_failed=$j
+				break 2
+			fi
+		done
+	done
+
+	# We expect to exceed the maximum number of eRP entries, so that
+	# insertion eventually fails. Otherwise, the test should be adjusted to
+	# add more filters.
+	check_fail $ret "expected to exceed number of eRP entries"
+
+	for ((; i >= 1; i--)); do
+		for ((j=0; j <= $num_masks; j++)); do
+			tc filter del dev $h2 ingress chain $i protocol ip \
+				pref $i handle $j flower &> /dev/null
+		done
+	done
+
+	log_test "max eRP entries test ($tcflags). " \
+		"max chain $chain_failed, mask $mask_failed"
+}
+
+max_group_size_test()
+{
+	# The number of ACLs in an ACL group is limited. Once the maximum
+	# number of ACLs has been reached, filters cannot be added. This test
+	# verifies that when this limit is reached, insertion fails without
+	# crashing.
+
+	RET=0
+
+	local num_acls=32
+	local max_size
+	local ret
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	for ((i=1; i < $num_acls; i++)); do
+		if [[ $(( i % 2 )) == 1 ]]; then
+			tc filter add dev $h2 ingress pref $i proto ipv4 \
+				flower $tcflags dst_ip 198.51.100.1/32 \
+				ip_proto tcp tcp_flags 0x01/0x01 \
+				action drop &> /dev/null
+		else
+			tc filter add dev $h2 ingress pref $i proto ipv6 \
+				flower $tcflags dst_ip 2001:db8:1::1/128 \
+				action drop &> /dev/null
+		fi
+
+		ret=$?
+		[[ $ret -ne 0 ]] && max_size=$((i - 1)) && break
+	done
+
+	# We expect to exceed the maximum number of ACLs in a group, so that
+	# insertion eventually fails. Otherwise, the test should be adjusted to
+	# add more filters.
+	check_fail $ret "expected to exceed number of ACLs in a group"
+
+	for ((; i >= 1; i--)); do
+		if [[ $(( i % 2 )) == 1 ]]; then
+			tc filter del dev $h2 ingress pref $i proto ipv4 \
+				flower $tcflags dst_ip 198.51.100.1/32 \
+				ip_proto tcp tcp_flags 0x01/0x01 \
+				action drop &> /dev/null
+		else
+			tc filter del dev $h2 ingress pref $i proto ipv6 \
+				flower $tcflags dst_ip 2001:db8:1::1/128 \
+				action drop &> /dev/null
+		fi
+	done
+
+	log_test "max ACL group size test ($tcflags). max size $max_size"
+}
+
+collision_test()
+{
+	# Filters cannot share an eRP if in the common unmasked part (i.e.,
+	# without the delta bits) they have the same values. If the driver does
+	# not prevent such configuration (by spilling into the C-TCAM), then
+	# multiple entries will be present in the device with the same key,
+	# leading to collisions and a reduced scale.
+	#
+	# Create such a scenario and make sure all the filters are successfully
+	# added.
+
+	RET=0
+
+	local ret
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	# Add a single dst_ip/24 filter and multiple dst_ip/32 filters that all
+	# have the same values in the common unmasked part (dst_ip/24).
+
+	tc filter add dev $h2 ingress pref 1 proto ipv4 handle 101 \
+		flower $tcflags dst_ip 198.51.100.0/24 \
+		action drop
+
+	for i in {0..255}; do
+		tc filter add dev $h2 ingress pref 2 proto ipv4 \
+			handle $((102 + i)) \
+			flower $tcflags dst_ip 198.51.100.${i}/32 \
+			action drop
+		ret=$?
+		[[ $ret -ne 0 ]] && break
+	done
+
+	check_err $ret "failed to add all the filters"
+
+	for i in {255..0}; do
+		tc filter del dev $h2 ingress pref 2 proto ipv4 \
+			handle $((102 + i)) flower
+	done
+
+	tc filter del dev $h2 ingress pref 1 proto ipv4 handle 101 flower
+
+	log_test "collision test ($tcflags)"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+if ! tc_offload_check; then
+	check_err 1 "Could not test offloaded functionality"
+	log_test "mlxsw-specific tests for tc flower"
+	exit
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
new file mode 100644
index 000000000000..4444bbace1a9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../tc_flower_scale.sh
+
+tc_flower_get_target()
+{
+	local should_fail=$1; shift
+	local max_cnts
+
+	# The driver associates a counter with each tc filter, which means the
+	# number of supported filters is bounded by the number of available
+	# counters.
+	max_cnts=$(devlink_resource_size_get counters flow)
+
+	# Remove already allocated counters.
+	((max_cnts -= $(devlink_resource_occ_get counters flow)))
+
+	# Each rule uses two counters, for packets and bytes.
+	((max_cnts /= 2))
+
+	if ((! should_fail)); then
+		echo $max_cnts
+	else
+		echo $((max_cnts + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_police_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_police_scale.sh
new file mode 100644
index 000000000000..e79ac0dad1f4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_police_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../tc_police_scale.sh
+
+tc_police_get_target()
+{
+	local should_fail=$1; shift
+	local target
+
+	target=$(devlink_resource_size_get global_policers single_rate_policers)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh
new file mode 100755
index 000000000000..fd23c80eba31
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/vxlan_flooding_ipv6.sh
@@ -0,0 +1,339 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test VxLAN flooding. The device stores flood records in a singly linked list
+# where each record stores up to four IPv6 addresses of remote VTEPs. The test
+# verifies that packets are correctly flooded in various cases such as deletion
+# of a record in the middle of the list.
+#
+# +-----------------------+
+# | H1 (vrf)              |
+# |    + $h1              |
+# |    | 2001:db8:1::1/64 |
+# +----|------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vxlan0 (vxlan)                                                     | |
+# | |    local 2001:db8:2::1                                                | |
+# | |    remote 2001:db8:2::{2..17}                                         | |
+# | |    id 10 dstport 4789                                                 | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:2::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                               R2 (vrf) |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+ALL_TESTS="flooding_test"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	# Make sure the bridge uses the MAC address of the local port and
+	# not that of the VxLAN's device
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 address $(mac_get $swp1)
+
+	ip link add name vxlan0 type vxlan id 10 nolearning \
+		udp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local 2001:db8:2::1 dstport 4789
+
+	ip address add 2001:db8:2::1/128 dev lo
+
+	ip link set dev $swp1 master br0
+	ip link set dev vxlan0 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev vxlan0 up
+}
+
+switch_destroy()
+{
+	ip link set dev vxlan0 down
+	ip link set dev $swp1 down
+	ip link set dev br0 down
+
+	ip link set dev vxlan0 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip address del 2001:db8:2::1/128 dev lo
+
+	ip link del dev vxlan0
+
+	ip link del dev br0
+}
+
+router1_create()
+{
+	# This router is in the default VRF, where the VxLAN device is
+	# performing the L3 lookup
+	ip link set dev $rp1 up
+	ip address add 2001:db8:3::1/64 dev $rp1
+	ip route add 2001:db8:2::0/64 via 2001:db8:3::2
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::0/64 via 2001:db8:3::2
+	ip address del 2001:db8:3::1/64 dev $rp1
+	ip link set dev $rp1 down
+}
+
+router2_create()
+{
+	# This router is not in the default VRF, so use simple_if_init()
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+router2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+flooding_remotes_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	# Prevent unwanted packets from entering the bridge and interfering
+	# with the test.
+	tc qdisc add dev br0 clsact
+	tc filter add dev br0 egress protocol all pref 1 handle 1 \
+		matchall skip_hw action drop
+	tc qdisc add dev $h1 clsact
+	tc filter add dev $h1 egress protocol all pref 1 handle 1 \
+		flower skip_hw dst_mac de:ad:be:ef:13:37 action pass
+	tc filter add dev $h1 egress protocol all pref 2 handle 2 \
+		matchall skip_hw action drop
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \
+			dst 2001:db8:2::$lsb
+	done
+}
+
+flooding_filters_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	tc qdisc add dev $rp2 clsact
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		tc filter add dev $rp2 ingress protocol ipv6 pref $i handle $i \
+			flower ip_proto udp dst_ip 2001:db8:2::$lsb \
+			dst_port 4789 skip_sw action drop
+	done
+}
+
+flooding_filters_del()
+{
+	local num_remotes=$1
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc filter del dev $rp2 ingress protocol ipv6 pref $i \
+			handle $i flower
+	done
+
+	tc qdisc del dev $rp2 clsact
+
+	tc filter del dev $h1 egress protocol all pref 2 handle 2 matchall
+	tc filter del dev $h1 egress protocol all pref 1 handle 1 flower
+	tc qdisc del dev $h1 clsact
+	tc filter del dev br0 egress protocol all pref 1 handle 1 matchall
+	tc qdisc del dev br0 clsact
+}
+
+flooding_check_packets()
+{
+	local packets=("$@")
+	local num_remotes=${#packets[@]}
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]}
+		check_err $? "remote $i - did not get expected number of packets"
+	done
+}
+
+flooding_test()
+{
+	# Use 16 remote VTEPs that will be stored in 4 records. The array
+	# 'packets' will store how many packets are expected to be received
+	# by each remote VTEP at each stage of the test
+	declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+	local num_remotes=16
+
+	RET=0
+
+	# Add FDB entries for remote VTEPs and corresponding tc filters on the
+	# ingress of the nexthop router. These filters will count how many
+	# packets were flooded to each remote VTEP
+	flooding_remotes_add $num_remotes
+	flooding_filters_add $num_remotes
+
+	# Send one packet and make sure it is flooded to all the remote VTEPs
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 1 packet"
+
+	# Delete the third record which corresponds to VTEPs with LSB 10..13
+	# and check that packet is flooded correctly when we remove a record
+	# from the middle of the list
+	RET=0
+
+	packets=(2 2 2 2 2 2 2 2 1 1 1 1 2 2 2 2)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::10
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::11
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::12
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::13
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 2 packets"
+
+	# Delete the first record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 3 3 3 3 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::2
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::3
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::4
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::5
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 3 packets"
+
+	# Delete the last record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 4 4 4 4 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::14
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::15
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::16
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::17
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 4 packets"
+
+	# Delete the last record, one entry at a time and make sure single
+	# entries are correctly removed
+	RET=0
+
+	packets=(2 2 2 2 4 5 5 5 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::6
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 5 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 6 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::7
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 6 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 7 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::8
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 7 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 4 5 6 7 1 1 1 1 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::9
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 8 packets"
+
+	flooding_filters_del $num_remotes
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_lib_spectrum.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_lib_spectrum.sh
new file mode 100644
index 000000000000..06a80f40daa4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_lib_spectrum.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source "../../../../net/forwarding/devlink_lib.sh"
+source ../mlxsw_lib.sh
+
+mlxsw_only_on_spectrum 1 || exit 1
+
+# Needed for returning to default
+declare -A KVD_DEFAULTS
+
+KVD_CHILDREN="linear hash_single hash_double"
+KVDL_CHILDREN="singles chunks large_chunks"
+
+devlink_sp_resource_minimize()
+{
+	local size
+	local i
+
+	for i in $KVD_CHILDREN; do
+		size=$(devlink_resource_get kvd "$i" | jq '.["size_min"]')
+		devlink_resource_size_set "$size" kvd "$i"
+	done
+
+	for i in $KVDL_CHILDREN; do
+		size=$(devlink_resource_get kvd linear "$i" | \
+		       jq '.["size_min"]')
+		devlink_resource_size_set "$size" kvd linear "$i"
+	done
+}
+
+devlink_sp_size_kvd_to_default()
+{
+	local need_reload=0
+	local i
+
+	for i in $KVD_CHILDREN; do
+		local size=$(echo "${KVD_DEFAULTS[kvd_$i]}" | jq '.["size"]')
+		current_size=$(devlink_resource_size_get kvd "$i")
+
+		if [ "$size" -ne "$current_size" ]; then
+			devlink_resource_size_set "$size" kvd "$i"
+			need_reload=1
+		fi
+	done
+
+	for i in $KVDL_CHILDREN; do
+		local size=$(echo "${KVD_DEFAULTS[kvd_linear_$i]}" | \
+			     jq '.["size"]')
+		current_size=$(devlink_resource_size_get kvd linear "$i")
+
+		if [ "$size" -ne "$current_size" ]; then
+			devlink_resource_size_set "$size" kvd linear "$i"
+			need_reload=1
+		fi
+	done
+
+	if [ "$need_reload" -ne "0" ]; then
+		devlink_reload
+	fi
+}
+
+devlink_sp_read_kvd_defaults()
+{
+	local key
+	local i
+
+	KVD_DEFAULTS[kvd]=$(devlink_resource_get "kvd")
+	for i in $KVD_CHILDREN; do
+		key=kvd_$i
+		KVD_DEFAULTS[$key]=$(devlink_resource_get kvd "$i")
+	done
+
+	for i in $KVDL_CHILDREN; do
+		key=kvd_linear_$i
+		KVD_DEFAULTS[$key]=$(devlink_resource_get kvd linear "$i")
+	done
+}
+
+KVD_PROFILES="default scale ipv4_max"
+
+devlink_sp_resource_kvd_profile_set()
+{
+	local profile=$1
+
+	case "$profile" in
+	scale)
+		devlink_resource_size_set 64000 kvd linear
+		devlink_resource_size_set 15616 kvd linear singles
+		devlink_resource_size_set 32000 kvd linear chunks
+		devlink_resource_size_set 16384 kvd linear large_chunks
+		devlink_resource_size_set 128000 kvd hash_single
+		devlink_resource_size_set 48000 kvd hash_double
+		devlink_reload
+		;;
+	ipv4_max)
+		devlink_resource_size_set 64000 kvd linear
+		devlink_resource_size_set 15616 kvd linear singles
+		devlink_resource_size_set 32000 kvd linear chunks
+		devlink_resource_size_set 16384 kvd linear large_chunks
+		devlink_resource_size_set 144000 kvd hash_single
+		devlink_resource_size_set 32768 kvd hash_double
+		devlink_reload
+		;;
+	default)
+		devlink_resource_size_set 98304 kvd linear
+		devlink_resource_size_set 16384 kvd linear singles
+		devlink_resource_size_set 49152 kvd linear chunks
+		devlink_resource_size_set 32768 kvd linear large_chunks
+		devlink_resource_size_set 87040 kvd hash_single
+		devlink_resource_size_set 60416 kvd hash_double
+		devlink_reload
+		;;
+	*)
+		check_err 1 "Unknown profile $profile"
+	esac
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_resources.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_resources.sh
new file mode 100755
index 000000000000..6f2683cbc7d5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/devlink_resources.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+NUM_NETIFS=1
+source $lib_dir/lib.sh
+source devlink_lib_spectrum.sh
+
+setup_prepare()
+{
+	devlink_sp_read_kvd_defaults
+}
+
+cleanup()
+{
+	pre_cleanup
+	devlink_sp_size_kvd_to_default
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+profiles_test()
+{
+	local i
+
+	log_info "Running profile tests"
+
+	for i in $KVD_PROFILES; do
+		RET=0
+		devlink_sp_resource_kvd_profile_set $i
+		log_test "'$i' profile"
+	done
+
+	# Default is explicitly tested at end to ensure it's actually applied
+	RET=0
+	devlink_sp_resource_kvd_profile_set "default"
+	log_test "'default' profile"
+}
+
+resources_min_test()
+{
+	local size
+	local i
+	local j
+
+	log_info "Running KVD-minimum tests"
+
+	for i in $KVD_CHILDREN; do
+		RET=0
+		size=$(devlink_resource_get kvd "$i" | jq '.["size_min"]')
+		devlink_resource_size_set "$size" kvd "$i"
+
+		# In case of linear, need to minimize sub-resources as well
+		if [[ "$i" == "linear" ]]; then
+			for j in $KVDL_CHILDREN; do
+				devlink_resource_size_set 0 kvd linear "$j"
+			done
+		fi
+
+		devlink_reload
+		devlink_sp_size_kvd_to_default
+		log_test "'$i' minimize [$size]"
+	done
+}
+
+resources_max_test()
+{
+	local min_size
+	local size
+	local i
+	local j
+
+	log_info "Running KVD-maximum tests"
+	for i in $KVD_CHILDREN; do
+		RET=0
+		devlink_sp_resource_minimize
+
+		# Calculate the maximum possible size for the given partition
+		size=$(devlink_resource_size_get kvd)
+		for j in $KVD_CHILDREN; do
+			if [ "$i" != "$j" ]; then
+				min_size=$(devlink_resource_get kvd "$j" | \
+					   jq '.["size_min"]')
+				size=$((size - min_size))
+			fi
+		done
+
+		# Test almost maximum size
+		devlink_resource_size_set "$((size - 128))" kvd "$i"
+		devlink_reload
+		log_test "'$i' almost maximize [$((size - 128))]"
+
+		# Test above maximum size
+		devlink resource set "$DEVLINK_DEV" \
+			path "kvd/$i" size $((size + 128)) &> /dev/null
+		check_fail $? "Set kvd/$i to size $((size + 128)) should fail"
+		log_test "'$i' Overflow rejection [$((size + 128))]"
+
+		# Test maximum size
+		if [ "$i" == "hash_single" ] || [ "$i" == "hash_double" ]; then
+			echo "SKIP: Observed problem with exact max $i"
+			continue
+		fi
+
+		devlink_resource_size_set "$size" kvd "$i"
+		devlink_reload
+		log_test "'$i' maximize [$size]"
+
+		devlink_sp_size_kvd_to_default
+	done
+}
+
+profiles_test
+resources_min_test
+resources_max_test
+
+exit "$RET"
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/mirror_gre_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/mirror_gre_scale.sh
new file mode 100644
index 000000000000..f7c168decd1e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/mirror_gre_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../mirror_gre_scale.sh
+
+mirror_gre_get_target()
+{
+	local should_fail=$1; shift
+	local target
+
+	target=$(devlink_resource_size_get span_agents)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_range_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_range_scale.sh
new file mode 100644
index 000000000000..d0847e8ea270
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_range_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../port_range_scale.sh
+
+port_range_get_target()
+{
+	local should_fail=$1; shift
+	local target
+
+	target=$(devlink_resource_size_get port_range_registers)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_scale.sh
new file mode 100644
index 000000000000..0b71dfbbb447
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/port_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../port_scale.sh
+
+port_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get physical_ports)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh
new file mode 100755
index 000000000000..60753d46a2d4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/q_in_vni_veto.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+VXPORT=4789
+
+ALL_TESTS="
+	create_vxlan_on_top_of_8021ad_bridge
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+create_vxlan_on_top_of_8021ad_bridge()
+{
+	RET=0
+
+	ip link add dev br0 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
+		vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link add name vx100 type vxlan id 1000 local 192.0.2.17 dstport \
+		"$VXPORT" nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx100 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev vx100 master br0
+
+	bridge vlan add vid 100 dev vx100 pvid untagged 2>/dev/null
+	check_fail $? "802.1ad bridge with VxLAN in Spectrum-1 not rejected"
+
+	bridge vlan add vid 100 dev vx100 pvid untagged 2>&1 >/dev/null \
+		| grep -q mlxsw_spectrum
+	check_err $? "802.1ad bridge with VxLAN in Spectrum-1 rejected without extack"
+
+	log_test "create VxLAN on top of 802.1ad bridge"
+
+	ip link del dev vx100
+	ip link del dev br0
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
new file mode 100755
index 000000000000..7b98cdd0580d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+NUM_NETIFS=6
+source $lib_dir/lib.sh
+source $lib_dir/tc_common.sh
+source devlink_lib_spectrum.sh
+
+current_test=""
+
+cleanup()
+{
+	pre_cleanup
+	if [ ! -z $current_test ]; then
+		${current_test}_cleanup
+	fi
+	devlink_sp_size_kvd_to_default
+}
+
+devlink_sp_read_kvd_defaults
+trap cleanup EXIT
+
+ALL_TESTS="
+	router
+	tc_flower
+	mirror_gre
+	tc_police
+	port
+	rif_mac_profile
+	rif_counter
+	port_range
+"
+
+for current_test in ${TESTS:-$ALL_TESTS}; do
+	RET_FIN=0
+	source ${current_test}_scale.sh
+
+	num_netifs_var=${current_test^^}_NUM_NETIFS
+	num_netifs=${!num_netifs_var:-$NUM_NETIFS}
+
+	for profile in $KVD_PROFILES; do
+		RET=0
+		devlink_sp_resource_kvd_profile_set $profile
+		if [[ $RET -gt 0 ]]; then
+			log_test "'$current_test' [$profile] setting"
+			continue
+		fi
+
+		for should_fail in 0 1; do
+			RET=0
+			target=$(${current_test}_get_target "$should_fail")
+			if ((target == 0)); then
+				continue
+			fi
+			${current_test}_setup_prepare
+			setup_wait_n $num_netifs
+			# Update target in case occupancy of a certain resource
+			# changed following the test setup.
+			target=$(${current_test}_get_target "$should_fail")
+			${current_test}_test "$target" "$should_fail"
+			if [[ "$should_fail" -eq 0 ]]; then
+				log_test "'$current_test' [$profile] $target"
+
+				if ((!RET)); then
+					tt=${current_test}_traffic_test
+					if [[ $(type -t $tt) == "function" ]]
+					then
+						$tt "$target"
+						log_test "'$current_test' [$profile] $target traffic test"
+					fi
+				fi
+			else
+				log_test "'$current_test' [$profile] overflow $target"
+			fi
+			${current_test}_cleanup $target
+			RET_FIN=$(( RET_FIN || RET ))
+		done
+	done
+done
+current_test=""
+
+exit "$RET_FIN"
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh
new file mode 100644
index 000000000000..d44536276e8a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../rif_counter_scale.sh
+
+rif_counter_get_target()
+{
+	local should_fail=$1; shift
+	local max_cnts
+	local max_rifs
+	local target
+
+	max_rifs=$(devlink_resource_size_get rifs)
+	max_cnts=$(devlink_resource_size_get counters rif)
+
+	# Remove already allocated RIFs.
+	((max_rifs -= $(devlink_resource_occ_get rifs)))
+
+	# 10 KVD slots per counter, ingress+egress counters per RIF
+	((max_cnts /= 20))
+
+	# Pointless to run the overflow test if we don't have enough RIFs to
+	# host all the counters.
+	if ((max_cnts > max_rifs && should_fail)); then
+		echo 0
+		return
+	fi
+
+	target=$((max_rifs < max_cnts ? max_rifs : max_cnts))
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_mac_profile_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_mac_profile_scale.sh
new file mode 100644
index 000000000000..303d7cbe3c45
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_mac_profile_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../rif_mac_profile_scale.sh
+
+rif_mac_profile_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get rif_mac_profiles)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/router_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/router_scale.sh
new file mode 100644
index 000000000000..21c4697d5bab
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/router_scale.sh
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../router_scale.sh
+
+router_get_target()
+{
+	local should_fail=$1
+	local target
+
+	target=$(devlink_resource_size_get kvd hash_single)
+
+	if [[ $should_fail -eq 0 ]]; then
+		target=$((target * 85 / 100))
+	else
+		target=$((target + 1))
+	fi
+
+	echo $target
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_flower_scale.sh
new file mode 100644
index 000000000000..f9bfd8937765
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_flower_scale.sh
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../tc_flower_scale.sh
+
+tc_flower_get_target()
+{
+	local should_fail=$1; shift
+
+	# 6144 (6x1024) is the theoretical maximum.
+	# One bank of 512 rules is taken by the 18-byte MC router rule.
+	# One rule is the ACL catch-all.
+	# 6144 - 512 - 1 = 5631
+	local target=5631
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_police_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_police_scale.sh
new file mode 100644
index 000000000000..e79ac0dad1f4
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/tc_police_scale.sh
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../tc_police_scale.sh
+
+tc_police_get_target()
+{
+	local should_fail=$1; shift
+	local target
+
+	target=$(devlink_resource_size_get global_policers single_rate_policers)
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh
new file mode 100755
index 000000000000..d8fd875ad527
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/vxlan_flooding_ipv6.sh
@@ -0,0 +1,334 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test VxLAN flooding. The device stores flood records in a singly linked list
+# where each record stores up to five IPv6 addresses of remote VTEPs. The test
+# verifies that packets are correctly flooded in various cases such as deletion
+# of a record in the middle of the list.
+#
+# +-----------------------+
+# | H1 (vrf)              |
+# |    + $h1              |
+# |    | 2001:db8:1::1/64 |
+# +----|------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vxlan0 (vxlan)                                                     | |
+# | |    local 2001:db8:2::1                                                | |
+# | |    remote 2001:db8:2::{2..21}                                         | |
+# | |    id 10 dstport 4789                                                 | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:2::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                               R2 (vrf) |
+# |    + $rp2                                                   |
+# |      2001:db8:3::2/64                                       |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../../net/forwarding
+
+ALL_TESTS="flooding_test"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	# Make sure the bridge uses the MAC address of the local port and
+	# not that of the VxLAN's device
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 address $(mac_get $swp1)
+
+	ip link add name vxlan0 type vxlan id 10 nolearning \
+		udp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local 2001:db8:2::1 dstport 4789
+
+	ip address add 2001:db8:2::1/128 dev lo
+
+	ip link set dev $swp1 master br0
+	ip link set dev vxlan0 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev vxlan0 up
+}
+
+switch_destroy()
+{
+	ip link set dev vxlan0 down
+	ip link set dev $swp1 down
+	ip link set dev br0 down
+
+	ip link set dev vxlan0 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip address del 2001:db8:2::1/128 dev lo
+
+	ip link del dev vxlan0
+
+	ip link del dev br0
+}
+
+router1_create()
+{
+	# This router is in the default VRF, where the VxLAN device is
+	# performing the L3 lookup
+	ip link set dev $rp1 up
+	ip address add 2001:db8:3::1/64 dev $rp1
+	ip route add 2001:db8:2::0/64 via 2001:db8:3::2
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::0/64 via 2001:db8:3::2
+	ip address del 2001:db8:3::1/64 dev $rp1
+	ip link set dev $rp1 down
+}
+
+router2_create()
+{
+	# This router is not in the default VRF, so use simple_if_init()
+	simple_if_init $rp2 2001:db8:3::2/64
+}
+
+router2_destroy()
+{
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+flooding_remotes_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \
+			dst 2001:db8:2::$lsb
+	done
+}
+
+flooding_filters_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	tc qdisc add dev $rp2 clsact
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		tc filter add dev $rp2 ingress protocol ipv6 pref $i handle $i \
+			flower ip_proto udp dst_ip 2001:db8:2::$lsb \
+			dst_port 4789 skip_sw action drop
+	done
+}
+
+flooding_filters_del()
+{
+	local num_remotes=$1
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc filter del dev $rp2 ingress protocol ipv6 pref $i \
+			handle $i flower
+	done
+
+	tc qdisc del dev $rp2 clsact
+}
+
+flooding_check_packets()
+{
+	local packets=("$@")
+	local num_remotes=${#packets[@]}
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]}
+		check_err $? "remote $i - did not get expected number of packets"
+	done
+}
+
+flooding_test()
+{
+	# Use 20 remote VTEPs that will be stored in 4 records. The array
+	# 'packets' will store how many packets are expected to be received
+	# by each remote VTEP at each stage of the test
+	declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1)
+	local num_remotes=20
+
+	RET=0
+
+	# Add FDB entries for remote VTEPs and corresponding tc filters on the
+	# ingress of the nexthop router. These filters will count how many
+	# packets were flooded to each remote VTEP
+	flooding_remotes_add $num_remotes
+	flooding_filters_add $num_remotes
+
+	# Send one packet and make sure it is flooded to all the remote VTEPs
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 1 packet"
+
+	# Delete the third record which corresponds to VTEPs with LSB 12..16
+	# and check that packet is flooded correctly when we remove a record
+	# from the middle of the list
+	RET=0
+
+	packets=(2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 2 2 2 2 2)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::12
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::13
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::14
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::15
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::16
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 2 packets"
+
+	# Delete the first record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 2 3 3 3 3 3 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::2
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::3
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::4
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::5
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::6
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 3 packets"
+
+	# Delete the last record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 2 2 4 4 4 4 4 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::17
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::18
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::19
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::20
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::21
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 4 packets"
+
+	# Delete the last record, one entry at a time and make sure single
+	# entries are correctly removed
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 5 5 5 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::7
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 5 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 6 6 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::8
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 6 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 7 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::9
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 7 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::10
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 8 packets"
+
+	RET=0
+
+	packets=(2 2 2 2 2 4 5 6 7 8 1 1 1 1 1 3 3 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 2001:db8:2::11
+
+	$MZ -6 $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 9 packets"
+
+	flooding_filters_del $num_remotes
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh
new file mode 100755
index 000000000000..20ed98fe5a60
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_action_hw_stats.sh
@@ -0,0 +1,130 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	default_hw_stats_test
+	immediate_hw_stats_test
+	delayed_hw_stats_test
+	disabled_hw_stats_test
+"
+NUM_NETIFS=2
+
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.2/24
+	tc qdisc add dev $swp1 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1 192.0.2.2/24
+}
+
+hw_stats_test()
+{
+	RET=0
+
+	local name=$1
+	local action_hw_stats=$2
+	local occ_delta=$3
+	local expected_packet_count=$4
+
+	local orig_occ=$(devlink_resource_get "counters" "flow" | jq '.["occ"]')
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop $action_hw_stats
+	check_err $? "Failed to add rule with $name hw_stats"
+
+	local new_occ=$(devlink_resource_get "counters" "flow" | jq '.["occ"]')
+	local expected_occ=$((orig_occ + occ_delta))
+	[ "$new_occ" == "$expected_occ" ]
+	check_err $? "Expected occupancy of $expected_occ, got $new_occ"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $swp1mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $swp1 ingress" 101 $expected_packet_count
+	check_err $? "Did not match incoming packet"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "$name hw_stats"
+}
+
+default_hw_stats_test()
+{
+	hw_stats_test "default" "" 2 1
+}
+
+immediate_hw_stats_test()
+{
+	hw_stats_test "immediate" "hw_stats immediate" 2 1
+}
+
+delayed_hw_stats_test()
+{
+	RET=0
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop hw_stats delayed
+	check_fail $? "Unexpected success in adding rule with delayed hw_stats"
+
+	log_test "delayed hw_stats"
+}
+
+disabled_hw_stats_test()
+{
+	hw_stats_test "disabled" "hw_stats disabled" 0 0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	h1mac=$(mac_get $h1)
+	swp1mac=$(mac_get $swp1)
+
+	vrf_prepare
+
+	h1_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+check_tc_action_hw_stats_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
new file mode 100644
index 000000000000..d3d9e60d6ddf
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
@@ -0,0 +1,140 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for resource limit of offloaded flower rules. The test adds a given
+# number of flower matches for different IPv6 addresses, then check the offload
+# indication for all of the tc flower rules. This file contains functions to set
+# up a testing topology and run the test, and is meant to be sourced from a test
+# script that calls the testing routine with a given number of rules.
+
+TC_FLOWER_NUM_NETIFS=2
+
+tc_flower_h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+}
+
+tc_flower_h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+tc_flower_h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+}
+
+tc_flower_h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+tc_flower_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	vrf_prepare
+
+	tc_flower_h1_create
+	tc_flower_h2_create
+}
+
+tc_flower_cleanup()
+{
+	pre_cleanup
+
+	tc_flower_h2_destroy
+	tc_flower_h1_destroy
+
+	vrf_cleanup
+
+	if [[ -v TC_FLOWER_BATCH_FILE ]]; then
+		rm -f $TC_FLOWER_BATCH_FILE
+	fi
+}
+
+tc_flower_addr()
+{
+	local num=$1; shift
+
+	printf "2001:db8:1::%x" $num
+}
+
+tc_flower_rules_create()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	TC_FLOWER_BATCH_FILE="$(mktemp)"
+
+	for ((i = 0; i < count; ++i)); do
+		cat >> $TC_FLOWER_BATCH_FILE <<-EOF
+			filter add dev $h2 ingress \
+				prot ipv6 \
+				pref 1000 \
+				handle 42$i \
+				flower $tcflags dst_ip $(tc_flower_addr $i) \
+				action drop
+		EOF
+	done
+
+	tc -b $TC_FLOWER_BATCH_FILE
+	check_err_fail $should_fail $? "Rule insertion"
+}
+
+__tc_flower_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+	local last=$((count - 1))
+
+	tc_flower_rules_create $count $should_fail
+
+	offload_count=$(tc -j -s filter show dev $h2 ingress    |
+			jq -r '[ .[] | select(.kind == "flower") |
+			.options | .in_hw ]' | jq .[] | wc -l)
+	[[ $((offload_count - 1)) -eq $count ]]
+	check_err_fail $should_fail $? "Attempt to offload $count rules (actual result $((offload_count - 1)))"
+}
+
+tc_flower_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	# We use lower 16 bits of IPv6 address for match. Also there are only 16
+	# bits of rule priority space.
+	if ((count > 65536)); then
+		check_err 1 "Invalid count of $count. At most 65536 rules supported"
+		return
+	fi
+
+	if ! tc_offload_check $TC_FLOWER_NUM_NETIFS; then
+		check_err 1 "Could not test offloaded functionality"
+		return
+	fi
+
+	tcflags="skip_sw"
+	__tc_flower_test $count $should_fail
+}
+
+tc_flower_traffic_test()
+{
+	local count=$1; shift
+	local i;
+
+	for ((i = count - 1; i > 0; i /= 2)); do
+		$MZ -6 $h1 -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \
+		    -A $(tc_flower_addr 0) -B $(tc_flower_addr $i) \
+		    -q -t udp sp=54321,dp=12345
+	done
+	for ((i = count - 1; i > 0; i /= 2)); do
+		tc_check_packets "dev $h2 ingress" 42$i 1
+		check_err $? "Traffic not seen at rule #$i"
+	done
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_police_occ.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_police_occ.sh
new file mode 100755
index 000000000000..448b75c1545a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_police_occ.sh
@@ -0,0 +1,108 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that policers shared by different tc filters are correctly reference
+# counted by observing policers' occupancy via devlink-resource.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	tc_police_occ_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+switch_create()
+{
+	simple_if_init $swp1
+	tc qdisc add dev $swp1 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+tc_police_occ_get()
+{
+	devlink_resource_occ_get global_policers single_rate_policers
+}
+
+tc_police_occ_test()
+{
+	RET=0
+
+	local occ=$(tc_police_occ_get)
+
+	tc filter add dev $swp1 ingress pref 1 handle 101 proto ip \
+		flower skip_sw \
+		action police rate 100mbit burst 100k conform-exceed drop/ok
+	(( occ + 1 == $(tc_police_occ_get) ))
+	check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
+
+	tc filter del dev $swp1 ingress pref 1 handle 101 flower
+	(( occ == $(tc_police_occ_get) ))
+	check_err $? "Got occupancy $(tc_police_occ_get), expected $occ"
+
+	tc filter add dev $swp1 ingress pref 1 handle 101 proto ip \
+		flower skip_sw \
+		action police rate 100mbit burst 100k conform-exceed drop/ok \
+		index 10
+	tc filter add dev $swp1 ingress pref 2 handle 102 proto ip \
+		flower skip_sw action police index 10
+
+	(( occ + 1 == $(tc_police_occ_get) ))
+	check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
+
+	tc filter del dev $swp1 ingress pref 2 handle 102 flower
+	(( occ + 1 == $(tc_police_occ_get) ))
+	check_err $? "Got occupancy $(tc_police_occ_get), expected $((occ + 1))"
+
+	tc filter del dev $swp1 ingress pref 1 handle 101 flower
+	(( occ == $(tc_police_occ_get) ))
+	check_err $? "Got occupancy $(tc_police_occ_get), expected $occ"
+
+	log_test "tc police occupancy"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh
new file mode 100644
index 000000000000..86e787895f78
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_police_scale.sh
@@ -0,0 +1,101 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TC_POLICE_NUM_NETIFS=2
+
+tc_police_h1_create()
+{
+	simple_if_init $h1
+}
+
+tc_police_h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+tc_police_switch_create()
+{
+	simple_if_init $swp1
+	tc qdisc add dev $swp1 clsact
+}
+
+tc_police_switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1
+}
+
+tc_police_addr()
+{
+       local num=$1; shift
+
+       printf "2001:db8:1::%x" $num
+}
+
+tc_police_rules_create()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	TC_POLICE_BATCH_FILE="$(mktemp)"
+
+	for ((i = 0; i < count; ++i)); do
+		cat >> $TC_POLICE_BATCH_FILE <<-EOF
+			filter add dev $swp1 ingress \
+				prot ipv6 \
+				pref 1000 \
+				flower skip_sw dst_ip $(tc_police_addr $i) \
+				action police rate 10mbit burst 100k \
+				conform-exceed drop/ok
+		EOF
+	done
+
+	tc -b $TC_POLICE_BATCH_FILE
+	check_err_fail $should_fail $? "Rule insertion"
+}
+
+__tc_police_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	tc_police_rules_create $count $should_fail
+
+	offload_count=$(tc -j filter show dev $swp1 ingress |
+			jq "[.[] | select(.options.in_hw == true)] | length")
+	((offload_count == count))
+	check_err_fail $should_fail $? "tc police offload count"
+}
+
+tc_police_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	if ! tc_offload_check $TC_POLICE_NUM_NETIFS; then
+		check_err 1 "Could not test offloaded functionality"
+		return
+	fi
+
+	__tc_police_test $count $should_fail
+}
+
+tc_police_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	tc_police_h1_create
+	tc_police_switch_create
+}
+
+tc_police_cleanup()
+{
+	pre_cleanup
+
+	tc_police_switch_destroy
+	tc_police_h1_destroy
+
+	vrf_cleanup
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
new file mode 100755
index 000000000000..0441a18f098b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_restrictions.sh
@@ -0,0 +1,414 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	shared_block_drop_test
+	egress_redirect_test
+	multi_mirror_test
+	matchall_sample_egress_test
+	matchall_mirror_behind_flower_ingress_test
+	matchall_sample_behind_flower_ingress_test
+	matchall_mirror_behind_flower_egress_test
+	matchall_proto_match_test
+	police_limits_test
+	multi_police_test
+"
+NUM_NETIFS=2
+
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.1/24
+	simple_if_init $swp2 192.0.2.2/24
+}
+
+switch_destroy()
+{
+	simple_if_fini $swp2 192.0.2.2/24
+	simple_if_fini $swp1 192.0.2.1/24
+}
+
+shared_block_drop_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have mixed-bound
+	# shared block with a drop rule.
+
+	tc qdisc add dev $swp1 ingress_block 22 clsact
+	check_err $? "Failed to create clsact with ingress block"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_err $? "Failed to add drop rule to ingress bound block"
+
+	tc qdisc add dev $swp2 ingress_block 22 clsact
+	check_err $? "Failed to create another clsact with ingress shared block"
+
+	tc qdisc del dev $swp2 clsact
+
+	tc qdisc add dev $swp2 egress_block 22 clsact
+	check_fail $? "Incorrect success to create another clsact with egress shared block"
+
+	tc filter del block 22 protocol ip pref 1 handle 101 flower
+
+	tc qdisc add dev $swp2 egress_block 22 clsact
+	check_err $? "Failed to create another clsact with egress shared block after blocker drop rule removed"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_fail $? "Incorrect success to add drop rule to mixed bound block"
+
+	tc qdisc del dev $swp1 clsact
+
+	tc qdisc add dev $swp1 egress_block 22 clsact
+	check_err $? "Failed to create another clsact with egress shared block"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_err $? "Failed to add drop rule to egress bound shared block"
+
+	tc filter del block 22 protocol ip pref 1 handle 101 flower
+
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	log_test "shared block drop"
+}
+
+egress_redirect_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have mirred redirect on
+	# egress-bound block.
+
+	tc qdisc add dev $swp1 ingress_block 22 clsact
+	check_err $? "Failed to create clsact with ingress block"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress redirect dev $swp2
+	check_err $? "Failed to add redirect rule to ingress bound block"
+
+	tc qdisc add dev $swp2 ingress_block 22 clsact
+	check_err $? "Failed to create another clsact with ingress shared block"
+
+	tc qdisc del dev $swp2 clsact
+
+	tc qdisc add dev $swp2 egress_block 22 clsact
+	check_fail $? "Incorrect success to create another clsact with egress shared block"
+
+	tc filter del block 22 protocol ip pref 1 handle 101 flower
+
+	tc qdisc add dev $swp2 egress_block 22 clsact
+	check_err $? "Failed to create another clsact with egress shared block after blocker redirect rule removed"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress redirect dev $swp2
+	check_fail $? "Incorrect success to add redirect rule to mixed bound block"
+
+	tc qdisc del dev $swp1 clsact
+
+	tc qdisc add dev $swp1 egress_block 22 clsact
+	check_err $? "Failed to create another clsact with egress shared block"
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress redirect dev $swp2
+	check_fail $? "Incorrect success to add redirect rule to egress bound shared block"
+
+	tc qdisc del dev $swp2 clsact
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress redirect dev $swp2
+	check_fail $? "Incorrect success to add redirect rule to egress bound block"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "shared block drop"
+}
+
+multi_mirror_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have multiple mirror
+	# actions in a single rule.
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress mirror dev $swp2
+	check_err $? "Failed to add rule with single mirror action"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 \
+		action mirred egress mirror dev $swp2 \
+		action mirred egress mirror dev $swp1
+	check_fail $? "Incorrect success to add rule with two mirror actions"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "multi mirror"
+}
+
+matchall_sample_egress_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have matchall with sample action
+	# bound on egress. Spectrum-1 specific restriction
+	mlxsw_only_on_spectrum 1 || return
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress protocol all pref 1 handle 101 \
+		matchall skip_sw action sample rate 100 group 1
+	check_err $? "Failed to add rule with sample action on ingress"
+
+	tc filter del dev $swp1 ingress protocol all pref 1 handle 101 matchall
+
+	tc filter add dev $swp1 egress protocol all pref 1 handle 101 \
+		matchall skip_sw action sample rate 100 group 1
+	check_fail $? "Incorrect success to add rule with sample action on egress"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "matchall sample egress"
+}
+
+matchall_behind_flower_ingress_test()
+{
+	local action=$1
+	local action_args=$2
+
+	RET=0
+
+	# On ingress, all matchall-mirror and matchall-sample
+	# rules have to be in front of the flower rules
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress protocol ip pref 10 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+
+	tc filter add dev $swp1 ingress protocol all pref 9 handle 102 \
+		matchall skip_sw action $action_args
+	check_err $? "Failed to add matchall rule in front of a flower rule"
+
+	tc filter del dev $swp1 ingress protocol all pref 9 handle 102 matchall
+
+	tc filter add dev $swp1 ingress protocol all pref 11 handle 102 \
+		matchall skip_sw action $action_args
+	check_fail $? "Incorrect success to add matchall rule behind a flower rule"
+
+	tc filter del dev $swp1 ingress protocol ip pref 10 handle 101 flower
+
+	tc filter add dev $swp1 ingress protocol all pref 9 handle 102 \
+		matchall skip_sw action $action_args
+
+	tc filter add dev $swp1 ingress protocol ip pref 10 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_err $? "Failed to add flower rule behind a matchall rule"
+
+	tc filter del dev $swp1 ingress protocol ip pref 10 handle 101 flower
+
+	tc filter add dev $swp1 ingress protocol ip pref 8 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_fail $? "Incorrect success to add flower rule in front of a matchall rule"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "matchall $action flower ingress"
+}
+
+matchall_mirror_behind_flower_ingress_test()
+{
+	matchall_behind_flower_ingress_test "mirror" "mirred egress mirror dev $swp2"
+}
+
+matchall_sample_behind_flower_ingress_test()
+{
+	matchall_behind_flower_ingress_test "sample" "sample rate 100 group 1"
+}
+
+matchall_behind_flower_egress_test()
+{
+	local action=$1
+	local action_args=$2
+
+	RET=0
+
+	# On egress, all matchall-mirror rules have to be behind the flower rules
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 egress protocol ip pref 10 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+
+	tc filter add dev $swp1 egress protocol all pref 11 handle 102 \
+		matchall skip_sw action $action_args
+	check_err $? "Failed to add matchall rule in front of a flower rule"
+
+	tc filter del dev $swp1 egress protocol all pref 11 handle 102 matchall
+
+	tc filter add dev $swp1 egress protocol all pref 9 handle 102 \
+		matchall skip_sw action $action_args
+	check_fail $? "Incorrect success to add matchall rule behind a flower rule"
+
+	tc filter del dev $swp1 egress protocol ip pref 10 handle 101 flower
+
+	tc filter add dev $swp1 egress protocol all pref 11 handle 102 \
+		matchall skip_sw action $action_args
+
+	tc filter add dev $swp1 egress protocol ip pref 10 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_err $? "Failed to add flower rule behind a matchall rule"
+
+	tc filter del dev $swp1 egress protocol ip pref 10 handle 101 flower
+
+	tc filter add dev $swp1 egress protocol ip pref 12 handle 101 flower \
+		skip_sw dst_ip 192.0.2.2 action drop
+	check_fail $? "Incorrect success to add flower rule in front of a matchall rule"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "matchall $action flower egress"
+}
+
+matchall_mirror_behind_flower_egress_test()
+{
+	matchall_behind_flower_egress_test "mirror" "mirred egress mirror dev $swp2"
+}
+
+matchall_proto_match_test()
+{
+	RET=0
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		matchall skip_sw \
+		action sample group 1 rate 100
+	check_fail $? "Incorrect success to add matchall rule with protocol match"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "matchall protocol match"
+}
+
+police_limits_test()
+{
+	RET=0
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 0.5kbit burst 1m conform-exceed drop/ok
+	check_fail $? "Incorrect success to add police action with too low rate"
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 2.5tbit burst 1g conform-exceed drop/ok
+	check_fail $? "Incorrect success to add police action with too high rate"
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 1.5kbit burst 1m conform-exceed drop/ok
+	check_err $? "Failed to add police action with low rate"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 1.9tbit burst 1g conform-exceed drop/ok
+	check_err $? "Failed to add police action with high rate"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 1.5kbit burst 512b conform-exceed drop/ok
+	check_fail $? "Incorrect success to add police action with too low burst size"
+
+	tc filter add dev $swp1 ingress pref 1 proto ip handle 101 \
+		flower skip_sw \
+		action police rate 1.5kbit burst 2k conform-exceed drop/ok
+	check_err $? "Failed to add police action with low burst size"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "police rate and burst limits"
+}
+
+multi_police_test()
+{
+	RET=0
+
+	# It is forbidden in mlxsw driver to have multiple police
+	# actions in a single rule.
+
+	tc qdisc add dev $swp1 clsact
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 \
+		flower skip_sw \
+		action police rate 100mbit burst 100k conform-exceed drop/ok
+	check_err $? "Failed to add rule with single police action"
+
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 \
+		flower skip_sw \
+		action police rate 100mbit burst 100k conform-exceed drop/pipe \
+		action police rate 200mbit burst 200k conform-exceed drop/ok
+	check_fail $? "Incorrect success to add rule with two police actions"
+
+	tc qdisc del dev $swp1 clsact
+
+	log_test "multi police"
+}
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	vrf_prepare
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	vrf_cleanup
+}
+
+check_tc_shblock_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
new file mode 100755
index 000000000000..bc7ea2df49fb
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_sample.sh
@@ -0,0 +1,658 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that packets are sampled when tc-sample is used and that reported
+# metadata is correct. Two sets of hosts (with and without LAG) are used, since
+# metadata extraction in mlxsw is a bit different when LAG is involved.
+#
+# +---------------------------------+       +---------------------------------+
+# | H1 (vrf)                        |       | H3 (vrf)                        |
+# |    + $h1                        |       |    + $h3_lag                    |
+# |    | 192.0.2.1/28               |       |    | 192.0.2.17/28              |
+# |    |                            |       |    |                            |
+# |    |  default via 192.0.2.2     |       |    |  default via 192.0.2.18    |
+# +----|----------------------------+       +----|----------------------------+
+#      |                                         |
+# +----|-----------------------------------------|----------------------------+
+# |    | 192.0.2.2/28                            | 192.0.2.18/28              |
+# |    + $rp1                                    + $rp3_lag                   |
+# |                                                                           |
+# |    + $rp2                                    + $rp4_lag                   |
+# |    | 198.51.100.2/28                         | 198.51.100.18/28           |
+# +----|-----------------------------------------|----------------------------+
+#      |                                         |
+# +----|----------------------------+       +----|----------------------------+
+# |    |  default via 198.51.100.2  |       |    |  default via 198.51.100.18 |
+# |    |                            |       |    |                            |
+# |    | 198.51.100.1/28            |       |    | 198.51.100.17/28           |
+# |    + $h2                        |       |    + $h4_lag                    |
+# | H2 (vrf)                        |       | H4 (vrf)                        |
+# +---------------------------------+       +---------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	tc_sample_rate_test
+	tc_sample_max_rate_test
+	tc_sample_conflict_test
+	tc_sample_group_conflict_test
+	tc_sample_md_iif_test
+	tc_sample_md_lag_iif_test
+	tc_sample_md_oif_test
+	tc_sample_md_lag_oif_test
+	tc_sample_md_out_tc_test
+	tc_sample_md_out_tc_occ_test
+	tc_sample_md_latency_test
+	tc_sample_acl_group_conflict_test
+	tc_sample_acl_rate_test
+	tc_sample_acl_max_rate_test
+"
+NUM_NETIFS=8
+CAPTURE_FILE=$(mktemp)
+source $lib_dir/lib.sh
+source $lib_dir/devlink_lib.sh
+source mlxsw_lib.sh
+
+# Available at https://github.com/Mellanox/libpsample
+require_command psample
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/28
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+}
+
+h2_destroy()
+{
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/28
+}
+
+h3_create()
+{
+	ip link set dev $h3 down
+	ip link add name ${h3}_bond type bond mode 802.3ad
+	ip link set dev $h3 master ${h3}_bond
+
+	simple_if_init ${h3}_bond 192.0.2.17/28
+
+	ip -4 route add default vrf v${h3}_bond nexthop via 192.0.2.18
+}
+
+h3_destroy()
+{
+	ip -4 route del default vrf v${h3}_bond nexthop via 192.0.2.18
+
+	simple_if_fini ${h3}_bond 192.0.2.17/28
+
+	ip link set dev $h3 nomaster
+	ip link del dev ${h3}_bond
+}
+
+h4_create()
+{
+	ip link set dev $h4 down
+	ip link add name ${h4}_bond type bond mode 802.3ad
+	ip link set dev $h4 master ${h4}_bond
+
+	simple_if_init ${h4}_bond 198.51.100.17/28
+
+	ip -4 route add default vrf v${h4}_bond nexthop via 198.51.100.18
+}
+
+h4_destroy()
+{
+	ip -4 route del default vrf v${h4}_bond nexthop via 198.51.100.18
+
+	simple_if_fini ${h4}_bond 198.51.100.17/28
+
+	ip link set dev $h4 nomaster
+	ip link del dev ${h4}_bond
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	__addr_add_del $rp1 add 192.0.2.2/28
+	tc qdisc add dev $rp1 clsact
+
+	ip link set dev $rp2 up
+	__addr_add_del $rp2 add 198.51.100.2/28
+	tc qdisc add dev $rp2 clsact
+
+	ip link add name ${rp3}_bond type bond mode 802.3ad
+	ip link set dev $rp3 master ${rp3}_bond
+	__addr_add_del ${rp3}_bond add 192.0.2.18/28
+	tc qdisc add dev $rp3 clsact
+	ip link set dev ${rp3}_bond up
+
+	ip link add name ${rp4}_bond type bond mode 802.3ad
+	ip link set dev $rp4 master ${rp4}_bond
+	__addr_add_del ${rp4}_bond add 198.51.100.18/28
+	tc qdisc add dev $rp4 clsact
+	ip link set dev ${rp4}_bond up
+}
+
+router_destroy()
+{
+	ip link set dev ${rp4}_bond down
+	tc qdisc del dev $rp4 clsact
+	__addr_add_del ${rp4}_bond del 198.51.100.18/28
+	ip link set dev $rp4 nomaster
+	ip link del dev ${rp4}_bond
+
+	ip link set dev ${rp3}_bond down
+	tc qdisc del dev $rp3 clsact
+	__addr_add_del ${rp3}_bond del 192.0.2.18/28
+	ip link set dev $rp3 nomaster
+	ip link del dev ${rp3}_bond
+
+	tc qdisc del dev $rp2 clsact
+	__addr_add_del $rp2 del 198.51.100.2/28
+	ip link set dev $rp2 down
+
+	tc qdisc del dev $rp1 clsact
+	__addr_add_del $rp1 del 192.0.2.2/28
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+	h3=${NETIFS[p5]}
+	rp3=${NETIFS[p6]}
+	h4=${NETIFS[p7]}
+	rp4=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+	h4_create
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	rm -f $CAPTURE_FILE
+
+	router_destroy
+	h4_destroy
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+psample_capture_start()
+{
+	rm -f $CAPTURE_FILE
+
+	psample &> $CAPTURE_FILE &
+
+	sleep 1
+}
+
+psample_capture_stop()
+{
+	kill_process %%
+}
+
+__tc_sample_rate_test()
+{
+	local desc=$1; shift
+	local dip=$1; shift
+	local pkts pct
+
+	RET=0
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 32 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 320000 -d 100usec -p 64 -A 192.0.2.1 \
+		-B $dip -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	pkts=$(grep -e "group 1 " $CAPTURE_FILE | wc -l)
+	pct=$((100 * (pkts - 10000) / 10000))
+	(( -25 <= pct && pct <= 25))
+	check_err $? "Expected 10000 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
+
+	log_test "tc sample rate ($desc)"
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_rate_test()
+{
+	__tc_sample_rate_test "forward" 198.51.100.1
+	__tc_sample_rate_test "local receive" 192.0.2.2
+}
+
+tc_sample_max_rate_test()
+{
+	RET=0
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate $((35 * 10 ** 8)) group 1
+	check_err $? "Failed to configure sampling rule with max rate"
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate $((35 * 10 ** 8 + 1)) \
+		group 1 &> /dev/null
+	check_fail $? "Managed to configure sampling rate above maximum"
+
+	log_test "tc sample maximum rate"
+}
+
+tc_sample_conflict_test()
+{
+	RET=0
+
+	# Test that two sampling rules cannot be configured on the same port,
+	# even when they share the same parameters.
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	tc filter add dev $rp1 ingress protocol all pref 2 handle 102 matchall \
+		skip_sw action sample rate 1024 group 1 &> /dev/null
+	check_fail $? "Managed to configure second sampling rule"
+
+	# Delete the first rule and make sure the second rule can now be
+	# configured.
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+
+	tc filter add dev $rp1 ingress protocol all pref 2 handle 102 matchall \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule after deletion"
+
+	log_test "tc sample conflict test"
+
+	tc filter del dev $rp1 ingress protocol all pref 2 handle 102 matchall
+}
+
+tc_sample_group_conflict_test()
+{
+	RET=0
+
+	# Test that two sampling rules cannot be configured on the same port
+	# with different groups.
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	tc filter add dev $rp1 ingress protocol all pref 2 handle 102 matchall \
+		skip_sw action sample rate 1024 group 2 &> /dev/null
+	check_fail $? "Managed to configure sampling rule with conflicting group"
+
+	log_test "tc sample group conflict test"
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_iif_test()
+{
+	local rp1_ifindex
+
+	RET=0
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	rp1_ifindex=$(ip -j -p link show dev $rp1 | jq '.[]["ifindex"]')
+	grep -q -e "in-ifindex $rp1_ifindex " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected in-ifindex"
+
+	log_test "tc sample iif"
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_lag_iif_test()
+{
+	local rp3_ifindex
+
+	RET=0
+
+	tc filter add dev $rp3 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v${h3}_bond $MZ ${h3}_bond -c 3200 -d 1msec -p 64 \
+		-A 192.0.2.17 -B 198.51.100.17 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	rp3_ifindex=$(ip -j -p link show dev $rp3 | jq '.[]["ifindex"]')
+	grep -q -e "in-ifindex $rp3_ifindex " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected in-ifindex"
+
+	log_test "tc sample lag iif"
+
+	tc filter del dev $rp3 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_oif_test()
+{
+	local rp2_ifindex
+
+	RET=0
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	rp2_ifindex=$(ip -j -p link show dev $rp2 | jq '.[]["ifindex"]')
+	grep -q -e "out-ifindex $rp2_ifindex " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected out-ifindex"
+
+	log_test "tc sample oif"
+
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_lag_oif_test()
+{
+	local rp4_ifindex
+
+	RET=0
+
+	tc filter add dev $rp3 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v${h3}_bond $MZ ${h3}_bond -c 3200 -d 1msec -p 64 \
+		-A 192.0.2.17 -B 198.51.100.17 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	rp4_ifindex=$(ip -j -p link show dev $rp4 | jq '.[]["ifindex"]')
+	grep -q -e "out-ifindex $rp4_ifindex " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected out-ifindex"
+
+	log_test "tc sample lag oif"
+
+	tc filter del dev $rp3 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_out_tc_test()
+{
+	RET=0
+
+	# Output traffic class is not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	# By default, all the packets should go to the same traffic class (0).
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	grep -q -e "out-tc 0 " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected out-tc (0)"
+
+	# Map all priorities to highest traffic class (7) and check reported
+	# out-tc.
+	tc qdisc replace dev $rp2 root handle 1: \
+		prio bands 3 priomap 0 0 0 0 0 0 0 0
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	grep -q -e "out-tc 7 " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have expected out-tc (7)"
+
+	log_test "tc sample out-tc"
+
+	tc qdisc del dev $rp2 root handle 1:
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_out_tc_occ_test()
+{
+	local backlog pct occ
+
+	RET=0
+
+	# Output traffic class occupancy is not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $rp1 ingress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	# Configure a shaper on egress to create congestion.
+	tc qdisc replace dev $rp2 root handle 1: \
+		tbf rate 1Mbit burst 256k limit 1M
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 0 -d 1usec -p 1400 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q &
+
+	# Allow congestion to reach steady state.
+	sleep 10
+
+	backlog=$(tc -j -p -s qdisc show dev $rp2 | jq '.[0]["backlog"]')
+
+	# Kill mausezahn.
+	kill_process %%
+
+	psample_capture_stop
+
+	# Record last congestion sample.
+	occ=$(grep -e "out-tc-occ " $CAPTURE_FILE | tail -n 1 | \
+		cut -d ' ' -f 16)
+
+	pct=$((100 * (occ - backlog) / backlog))
+	(( -1 <= pct && pct <= 1))
+	check_err $? "Recorded a congestion of $backlog bytes, but sampled congestion is $occ bytes, which is $pct% off. Required accuracy is +-5%"
+
+	log_test "tc sample out-tc-occ"
+
+	tc qdisc del dev $rp2 root handle 1:
+	tc filter del dev $rp1 ingress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_md_latency_test()
+{
+	RET=0
+
+	# Egress sampling not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $rp2 egress protocol all pref 1 handle 101 matchall \
+		skip_sw action sample rate 5 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	grep -q -e "latency " $CAPTURE_FILE
+	check_err $? "Sampled packets do not have latency attribute"
+
+	log_test "tc sample latency"
+
+	tc filter del dev $rp2 egress protocol all pref 1 handle 101 matchall
+}
+
+tc_sample_acl_group_conflict_test()
+{
+	RET=0
+
+	# Test that two flower sampling rules cannot be configured on the same
+	# port with different groups.
+
+	# Policy-based sampling is not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	tc filter add dev $rp1 ingress protocol ip pref 2 handle 102 flower \
+		skip_sw action sample rate 1024 group 1
+	check_err $? "Failed to configure sampling rule with same group"
+
+	tc filter add dev $rp1 ingress protocol ip pref 3 handle 103 flower \
+		skip_sw action sample rate 1024 group 2 &> /dev/null
+	check_fail $? "Managed to configure sampling rule with conflicting group"
+
+	log_test "tc sample (w/ flower) group conflict test"
+
+	tc filter del dev $rp1 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+__tc_sample_acl_rate_test()
+{
+	local bind=$1; shift
+	local port=$1; shift
+	local pkts pct
+
+	RET=0
+
+	# Policy-based sampling is not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $port $bind protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 198.51.100.1 action sample rate 32 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 320000 -d 100usec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	pkts=$(grep -e "group 1 " $CAPTURE_FILE | wc -l)
+	pct=$((100 * (pkts - 10000) / 10000))
+	(( -25 <= pct && pct <= 25))
+	check_err $? "Expected 10000 packets, got $pkts packets, which is $pct% off. Required accuracy is +-25%"
+
+	# Setup a filter that should not match any packet and make sure packets
+	# are not sampled.
+	tc filter del dev $port $bind protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $port $bind protocol ip pref 1 handle 101 flower \
+		skip_sw dst_ip 198.51.100.10 action sample rate 32 group 1
+	check_err $? "Failed to configure sampling rule"
+
+	psample_capture_start
+
+	ip vrf exec v$h1 $MZ $h1 -c 3200 -d 1msec -p 64 -A 192.0.2.1 \
+		-B 198.51.100.1 -t udp dp=52768,sp=42768 -q
+
+	psample_capture_stop
+
+	grep -q -e "group 1 " $CAPTURE_FILE
+	check_fail $? "Sampled packets when should not"
+
+	log_test "tc sample (w/ flower) rate ($bind)"
+
+	tc filter del dev $port $bind protocol ip pref 1 handle 101 flower
+}
+
+tc_sample_acl_rate_test()
+{
+	__tc_sample_acl_rate_test ingress $rp1
+	__tc_sample_acl_rate_test egress $rp2
+}
+
+tc_sample_acl_max_rate_test()
+{
+	RET=0
+
+	# Policy-based sampling is not supported on Spectrum-1.
+	mlxsw_only_on_spectrum 2+ || return
+
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw action sample rate $((2 ** 24 - 1)) group 1
+	check_err $? "Failed to configure sampling rule with max rate"
+
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_sw action sample rate $((2 ** 24)) \
+		group 1 &> /dev/null
+	check_fail $? "Managed to configure sampling rate above maximum"
+
+	log_test "tc sample (w/ flower) maximum rate"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
new file mode 100755
index 000000000000..4687b0a7dffb
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
@@ -0,0 +1,1185 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test various aspects of VxLAN offloading which are specific to mlxsw, such
+# as sanitization of invalid configurations and offload indication.
+
+: ${ADDR_FAMILY:=ipv4}
+export ADDR_FAMILY
+
+: ${LOCAL_IP_1:=198.51.100.1}
+export LOCAL_IP_1
+
+: ${LOCAL_IP_2:=198.51.100.2}
+export LOCAL_IP_2
+
+: ${PREFIX_LEN:=32}
+export PREFIX_LEN
+
+: ${UDPCSUM_FLAFS:=noudpcsum}
+export UDPCSUM_FLAFS
+
+: ${MC_IP:=239.0.0.1}
+export MC_IP
+
+: ${IP_FLAG:=""}
+export IP_FLAG
+
+: ${ALL_TESTS:="
+	sanitization_test
+	offload_indication_test
+	sanitization_vlan_aware_test
+	offload_indication_vlan_aware_test
+"}
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+NUM_NETIFS=2
+: ${TIMEOUT:=20000} # ms
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+}
+
+sanitization_single_dev_test_pass()
+{
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev vxlan0 master br0
+	check_err $?
+
+	ip link set dev $swp1 nomaster
+
+	ip link set dev $swp1 master br0
+	check_err $?
+}
+
+sanitization_single_dev_test_fail()
+{
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev vxlan0 master br0 &> /dev/null
+	check_fail $?
+
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vxlan0 master br0
+	check_err $?
+	ip link set dev $swp1 master br0 &> /dev/null
+	check_fail $?
+}
+
+sanitization_single_dev_valid_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_pass
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device - valid configuration"
+}
+
+sanitization_single_dev_vlan_aware_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0 vlan_filtering 1
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_pass
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with a vlan-aware bridge"
+}
+
+sanitization_single_dev_mcast_enabled_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with a multicast enabled bridge"
+}
+
+sanitization_single_dev_mcast_group_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add name dummy1 up type dummy
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 \
+		dev dummy1 group $MC_IP
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev dummy1
+	ip link del dev br0
+
+	log_test "vxlan device with a multicast group"
+}
+
+sanitization_single_dev_no_local_ip_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with no local ip"
+}
+
+sanitization_single_dev_learning_enabled_ipv4_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 learning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_pass
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with learning enabled"
+}
+
+sanitization_single_dev_local_interface_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add name dummy1 up type dummy
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 dev dummy1
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev dummy1
+	ip link del dev br0
+
+	log_test "vxlan device with local interface"
+}
+
+sanitization_single_dev_port_range_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789 \
+		srcport 4000 5000
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with udp source port range"
+}
+
+sanitization_single_dev_tos_static_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos 20 local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with static tos"
+}
+
+sanitization_single_dev_ttl_inherit_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl inherit tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with inherit ttl"
+}
+
+sanitization_single_dev_udp_checksum_ipv4_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning udpcsum \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with udp checksum"
+}
+
+sanitization_single_dev_test()
+{
+	# These tests make sure that we correctly sanitize VxLAN device
+	# configurations we do not support
+	sanitization_single_dev_valid_test
+	sanitization_single_dev_vlan_aware_test
+	sanitization_single_dev_mcast_enabled_test
+	sanitization_single_dev_mcast_group_test
+	sanitization_single_dev_no_local_ip_test
+	sanitization_single_dev_learning_enabled_"$ADDR_FAMILY"_test
+	sanitization_single_dev_local_interface_test
+	sanitization_single_dev_port_range_test
+	sanitization_single_dev_tos_static_test
+	sanitization_single_dev_ttl_inherit_test
+	sanitization_single_dev_udp_checksum_"$ADDR_FAMILY"_test
+}
+
+sanitization_multi_devs_test_pass()
+{
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev vxlan0 master br0
+	check_err $?
+	ip link set dev $swp2 master br1
+	check_err $?
+	ip link set dev vxlan1 master br1
+	check_err $?
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev $swp2 master br1
+	check_err $?
+}
+
+sanitization_multi_devs_test_fail()
+{
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev vxlan0 master br0
+	check_err $?
+	ip link set dev $swp2 master br1
+	check_err $?
+	ip link set dev vxlan1 master br1 &> /dev/null
+	check_fail $?
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vxlan1 master br1
+	check_err $?
+	ip link set dev $swp1 master br0
+	check_err $?
+	ip link set dev $swp2 master br1 &> /dev/null
+	check_fail $?
+}
+
+sanitization_multi_devs_valid_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add dev br1 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_multi_devs_test_pass
+
+	ip link del dev vxlan1
+	ip link del dev vxlan0
+	ip link del dev br1
+	ip link del dev br0
+
+	log_test "multiple vxlan devices - valid configuration"
+}
+
+sanitization_multi_devs_ttl_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add dev br1 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 40 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_multi_devs_test_fail
+
+	ip link del dev vxlan1
+	ip link del dev vxlan0
+	ip link del dev br1
+	ip link del dev br0
+
+	log_test "multiple vxlan devices with different ttl"
+}
+
+sanitization_multi_devs_udp_dstport_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add dev br1 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 5789
+
+	sanitization_multi_devs_test_fail
+
+	ip link del dev vxlan1
+	ip link del dev vxlan0
+	ip link del dev br1
+	ip link del dev br0
+
+	log_test "multiple vxlan devices with different udp destination port"
+}
+
+sanitization_multi_devs_local_ip_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link add dev br1 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up type vxlan id 20 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_2 dstport 4789
+
+	sanitization_multi_devs_test_fail
+
+	ip link del dev vxlan1
+	ip link del dev vxlan0
+	ip link del dev br1
+	ip link del dev br0
+
+	log_test "multiple vxlan devices with different local ip"
+}
+
+sanitization_multi_devs_test()
+{
+	# The device has a single VTEP, which means all the VxLAN devices
+	# we offload must share certain properties such as source IP and
+	# UDP destination port. These tests make sure that we forbid
+	# configurations that violate this limitation
+	sanitization_multi_devs_valid_test
+	sanitization_multi_devs_ttl_test
+	sanitization_multi_devs_udp_dstport_test
+	sanitization_multi_devs_local_ip_test
+}
+
+sanitization_test()
+{
+	sanitization_single_dev_test
+	sanitization_multi_devs_test
+}
+
+offload_indication_setup_create()
+{
+	# Create a simple setup with two bridges, each with a VxLAN device
+	# and one local port
+	ip link add name br0 type bridge mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name br1 type bridge mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br1
+
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	ip link add name vxlan0 up master br0 type vxlan id 10 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up master br1 type vxlan id 20 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+}
+
+offload_indication_setup_destroy()
+{
+	ip link del dev vxlan1
+	ip link del dev vxlan0
+
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip link del dev br1
+	ip link del dev br0
+}
+
+offload_indication_fdb_flood_test()
+{
+	RET=0
+
+	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self dst $LOCAL_IP_2
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb 00:00:00:00:00:00 \
+		bridge fdb show brport vxlan0
+	check_err $?
+
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self
+
+	log_test "vxlan flood entry offload indication"
+}
+
+offload_indication_fdb_bridge_test()
+{
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 self master static \
+		dst $LOCAL_IP_2
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan0
+	check_err $?
+
+	log_test "vxlan entry offload indication - initial state"
+
+	# Remove FDB entry from the bridge driver and check that corresponding
+	# entry in the VxLAN driver is not marked as offloaded
+	RET=0
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan0 master
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
+	check_err $?
+
+	log_test "vxlan entry offload indication - after removal from bridge"
+
+	# Add the FDB entry back to the bridge driver and make sure it is
+	# marked as offloaded in both drivers
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 master static
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan0
+	check_err $?
+
+	log_test "vxlan entry offload indication - after re-add to bridge"
+
+	# Remove FDB entry from the VxLAN driver and check that corresponding
+	# entry in the bridge driver is not marked as offloaded
+	RET=0
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan0 self
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan0
+	check_err $?
+
+	log_test "vxlan entry offload indication - after removal from vxlan"
+
+	# Add the FDB entry back to the VxLAN driver and make sure it is
+	# marked as offloaded in both drivers
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan0 self dst $LOCAL_IP_2
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan0
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan0
+	check_err $?
+
+	log_test "vxlan entry offload indication - after re-add to vxlan"
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan0 self master
+}
+
+offload_indication_fdb_test()
+{
+	offload_indication_fdb_flood_test
+	offload_indication_fdb_bridge_test
+}
+
+offload_indication_decap_route_test()
+{
+	RET=0
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link set dev vxlan0 down
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link set dev vxlan1 down
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - vxlan device down"
+
+	RET=0
+
+	ip link set dev vxlan1 up
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link set dev vxlan0 up
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - vxlan device up"
+
+	RET=0
+
+	ip address delete $LOCAL_IP_1/$PREFIX_LEN dev lo
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - add local route"
+
+	RET=0
+
+	ip link set dev $swp1 nomaster
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link set dev $swp2 nomaster
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - local ports enslavement"
+
+	RET=0
+
+	ip link del dev br0
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link del dev br1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - bridge device deletion"
+
+	RET=0
+
+	ip link add name br0 type bridge mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name br1 type bridge mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br1
+	ip link set dev vxlan0 master br0
+	ip link set dev vxlan1 master br1
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link del dev vxlan0
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	ip link del dev vxlan1
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - vxlan device deletion"
+
+	ip link add name vxlan0 up master br0 type vxlan id 10 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan1 up master br1 type vxlan id 20 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+}
+
+check_fdb_offloaded()
+{
+	local mac=00:11:22:33:44:55
+	local zmac=00:00:00:00:00:00
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $mac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $mac master \
+		bridge fdb show dev vxlan0
+	check_err $?
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+}
+
+check_vxlan_fdb_not_offloaded()
+{
+	local mac=00:11:22:33:44:55
+	local zmac=00:00:00:00:00:00
+
+	bridge fdb show dev vxlan0 | grep $mac | grep -q self
+	check_err $?
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $mac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+
+	bridge fdb show dev vxlan0 | grep $zmac | grep -q self
+	check_err $?
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+}
+
+check_bridge_fdb_not_offloaded()
+{
+	local mac=00:11:22:33:44:55
+	local zmac=00:00:00:00:00:00
+
+	bridge fdb show dev vxlan0 | grep $mac | grep -q master
+	check_err $?
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $mac master \
+		bridge fdb show dev vxlan0
+	check_err $?
+}
+
+__offload_indication_join_vxlan_first()
+{
+	local vid=$1; shift
+
+	local mac=00:11:22:33:44:55
+	local zmac=00:00:00:00:00:00
+
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
+
+	ip link set dev vxlan0 master br0
+	bridge fdb add dev vxlan0 $mac self master static dst $LOCAL_IP_2
+
+	RET=0
+	check_vxlan_fdb_not_offloaded
+	ip link set dev $swp1 master br0
+	sleep .1
+	check_fdb_offloaded
+	log_test "offload indication - attach vxlan first"
+
+	RET=0
+	ip link set dev vxlan0 down
+	check_vxlan_fdb_not_offloaded
+	check_bridge_fdb_not_offloaded
+	log_test "offload indication - set vxlan down"
+
+	RET=0
+	ip link set dev vxlan0 up
+	sleep .1
+	check_fdb_offloaded
+	log_test "offload indication - set vxlan up"
+
+	if [[ ! -z $vid ]]; then
+		RET=0
+		bridge vlan del dev vxlan0 vid $vid
+		check_vxlan_fdb_not_offloaded
+		check_bridge_fdb_not_offloaded
+		log_test "offload indication - delete VLAN"
+
+		RET=0
+		bridge vlan add dev vxlan0 vid $vid
+		check_vxlan_fdb_not_offloaded
+		check_bridge_fdb_not_offloaded
+		log_test "offload indication - add tagged VLAN"
+
+		RET=0
+		bridge vlan add dev vxlan0 vid $vid pvid untagged
+		sleep .1
+		check_fdb_offloaded
+		log_test "offload indication - add pvid/untagged VLAN"
+	fi
+
+	RET=0
+	ip link set dev $swp1 nomaster
+	check_vxlan_fdb_not_offloaded
+	log_test "offload indication - detach port"
+}
+
+offload_indication_join_vxlan_first()
+{
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	__offload_indication_join_vxlan_first
+
+	ip link del dev vxlan0
+	ip link del dev br0
+}
+
+__offload_indication_join_vxlan_last()
+{
+	local zmac=00:00:00:00:00:00
+
+	RET=0
+
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
+
+	ip link set dev $swp1 master br0
+
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+
+	ip link set dev vxlan0 master br0
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show dev vxlan0
+	check_err $?
+
+	log_test "offload indication - attach vxlan last"
+}
+
+offload_indication_join_vxlan_last()
+{
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	__offload_indication_join_vxlan_last
+
+	ip link del dev vxlan0
+	ip link del dev br0
+}
+
+offload_indication_test()
+{
+	offload_indication_setup_create
+	offload_indication_fdb_test
+	offload_indication_decap_route_test
+	offload_indication_setup_destroy
+
+	log_info "offload indication - replay & cleanup"
+	offload_indication_join_vxlan_first
+	offload_indication_join_vxlan_last
+}
+
+sanitization_vlan_aware_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0 vlan_filtering 1
+	ip link set dev br0 addrgenmode none
+
+	ip link add name vxlan10 up master br0 type vxlan id 10 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	ip link add name vxlan20 up master br0 type vxlan id 20 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	# Test that when each VNI is mapped to a different VLAN we can enslave
+	# a port to the bridge
+	bridge vlan add vid 10 dev vxlan10 pvid untagged
+	bridge vlan add vid 20 dev vxlan20 pvid untagged
+
+	ip link set dev $swp1 master br0
+	check_err $?
+
+	log_test "vlan-aware - enslavement to vlan-aware bridge"
+
+	# Try to map both VNIs to the same VLAN and make sure configuration
+	# fails
+	RET=0
+
+	bridge vlan add vid 10 dev vxlan20 pvid untagged &> /dev/null
+	check_fail $?
+
+	log_test "vlan-aware - two vnis mapped to the same vlan"
+
+	# Test that enslavement of a port to a bridge fails when two VNIs
+	# are mapped to the same VLAN
+	RET=0
+
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 20 dev vxlan20 pvid untagged
+	bridge vlan add vid 10 dev vxlan20 pvid untagged
+
+	ip link set dev $swp1 master br0 &> /dev/null
+	check_fail $?
+
+	log_test "vlan-aware - failed enslavement to vlan-aware bridge"
+
+	bridge vlan del vid 10 dev vxlan20
+	bridge vlan add vid 20 dev vxlan20 pvid untagged
+
+	# Test that when two VXLAN tunnels with conflicting configurations
+	# (i.e., different TTL) are enslaved to the same VLAN-aware bridge,
+	# then the enslavement of a port to the bridge is denied.
+
+	# Use the offload indication of the local route to ensure the VXLAN
+	# configuration was correctly rollbacked.
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	ip link set dev vxlan10 type vxlan ttl 10
+	ip link set dev $swp1 master br0 &> /dev/null
+	check_fail $?
+
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	log_test "vlan-aware - failed enslavement to bridge due to conflict"
+
+	ip link set dev vxlan10 type vxlan ttl 20
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	ip link del dev vxlan20
+	ip link del dev vxlan10
+	ip link del dev br0
+}
+
+offload_indication_vlan_aware_setup_create()
+{
+	# Create a simple setup with two VxLAN devices and a single VLAN-aware
+	# bridge
+	ip link add name br0 type bridge mcast_snooping 0 vlan_filtering 1 \
+		vlan_default_pvid 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan add vid 20 dev $swp1
+
+	ip address add $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	ip link add name vxlan10 up master br0 type vxlan id 10 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+	ip link add name vxlan20 up master br0 type vxlan id 20 nolearning \
+		$UDPCSUM_FLAFS ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	bridge vlan add vid 10 dev vxlan10 pvid untagged
+	bridge vlan add vid 20 dev vxlan20 pvid untagged
+}
+
+offload_indication_vlan_aware_setup_destroy()
+{
+	bridge vlan del vid 20 dev vxlan20
+	bridge vlan del vid 10 dev vxlan10
+
+	ip link del dev vxlan20
+	ip link del dev vxlan10
+
+	ip address del $LOCAL_IP_1/$PREFIX_LEN dev lo
+
+	bridge vlan del vid 20 dev $swp1
+	bridge vlan del vid 10 dev $swp1
+
+	ip link set dev $swp1 nomaster
+
+	ip link del dev br0
+}
+
+offload_indication_vlan_aware_fdb_test()
+{
+	RET=0
+
+	log_info "vxlan entry offload indication - vlan-aware"
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 self master static \
+		dst $LOCAL_IP_2 vlan 10
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan10
+	check_err $?
+
+	log_test "vxlan entry offload indication - initial state"
+
+	# Remove FDB entry from the bridge driver and check that corresponding
+	# entry in the VxLAN driver is not marked as offloaded
+	RET=0
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan10 master vlan 10
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
+	check_err $?
+
+	log_test "vxlan entry offload indication - after removal from bridge"
+
+	# Add the FDB entry back to the bridge driver and make sure it is
+	# marked as offloaded in both drivers
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 master static vlan 10
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan10
+	check_err $?
+
+	log_test "vxlan entry offload indication - after re-add to bridge"
+
+	# Remove FDB entry from the VxLAN driver and check that corresponding
+	# entry in the bridge driver is not marked as offloaded
+	RET=0
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan10 self
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan10
+	check_err $?
+
+	log_test "vxlan entry offload indication - after removal from vxlan"
+
+	# Add the FDB entry back to the VxLAN driver and make sure it is
+	# marked as offloaded in both drivers
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev vxlan10 self dst $LOCAL_IP_2
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self bridge fdb show brport vxlan10
+	check_err $?
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb \
+		de:ad:be:ef:13:37 self -v bridge fdb show brport vxlan10
+	check_err $?
+
+	log_test "vxlan entry offload indication - after re-add to vxlan"
+
+	bridge fdb del de:ad:be:ef:13:37 dev vxlan10 self master vlan 10
+}
+
+offload_indication_vlan_aware_decap_route_test()
+{
+	RET=0
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	# Toggle PVID flag on one VxLAN device and make sure route is still
+	# marked as offloaded
+	bridge vlan add vid 10 dev vxlan10 untagged
+
+	busywait "$TIMEOUT" wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	# Toggle PVID flag on second VxLAN device and make sure route is no
+	# longer marked as offloaded
+	bridge vlan add vid 20 dev vxlan20 untagged
+
+	busywait "$TIMEOUT" not wait_for_offload \
+		ip $IP_FLAG route show table local $LOCAL_IP_1
+	check_err $?
+
+	# Toggle PVID flag back and make sure route is marked as offloaded
+	bridge vlan add vid 10 dev vxlan10 pvid untagged
+	bridge vlan add vid 20 dev vxlan20 pvid untagged
+
+	busywait "$TIMEOUT" wait_for_offload ip $IP_FLAG route show table local \
+		$LOCAL_IP_1
+	check_err $?
+
+	log_test "vxlan decap route - vni map/unmap"
+}
+
+offload_indication_vlan_aware_join_vxlan_first()
+{
+	ip link add dev br0 type bridge mcast_snooping 0 \
+		vlan_filtering 1 vlan_default_pvid 1
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	__offload_indication_join_vxlan_first 1
+
+	ip link del dev vxlan0
+	ip link del dev br0
+}
+
+offload_indication_vlan_aware_join_vxlan_last()
+{
+	ip link add dev br0 type bridge mcast_snooping 0 \
+		vlan_filtering 1 vlan_default_pvid 1
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	__offload_indication_join_vxlan_last
+
+	ip link del dev vxlan0
+	ip link del dev br0
+}
+
+offload_indication_vlan_aware_l3vni_test()
+{
+	local zmac=00:00:00:00:00:00
+
+	RET=0
+
+	sysctl_set net.ipv6.conf.default.disable_ipv6 1
+	ip link add dev br0 type bridge mcast_snooping 0 \
+		vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br0 addrgenmode none
+	ip link set dev br0 up
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	ip link set dev $swp1 master br0
+
+	# The test will use the offload indication on the FDB entry to
+	# understand if the tunnel is offloaded or not
+	bridge fdb append $zmac dev vxlan0 self dst $LOCAL_IP_2
+
+	ip link set dev vxlan0 master br0
+	bridge vlan add dev vxlan0 vid 10 pvid untagged
+
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show brport vxlan0
+	check_err $? "vxlan tunnel not offloaded when should"
+
+	# Configure a VLAN interface and make sure tunnel is offloaded
+	ip link add link br0 name br10 up type vlan id 10
+	sysctl_set net.ipv6.conf.br10.disable_ipv6 0
+	ip -6 address add 2001:db8:1::1/64 dev br10
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show brport vxlan0
+	check_err $? "vxlan tunnel not offloaded when should"
+
+	# Unlink the VXLAN device, make sure tunnel is no longer offloaded,
+	# then add it back to the bridge and make sure it is offloaded
+	ip link set dev vxlan0 nomaster
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show brport vxlan0
+	check_err $? "vxlan tunnel offloaded after unlinked from bridge"
+
+	ip link set dev vxlan0 master br0
+	busywait "$TIMEOUT" not wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show brport vxlan0
+	check_err $? "vxlan tunnel offloaded despite no matching vid"
+
+	bridge vlan add dev vxlan0 vid 10 pvid untagged
+	busywait "$TIMEOUT" wait_for_offload grep_bridge_fdb $zmac self \
+		bridge fdb show brport vxlan0
+	check_err $? "vxlan tunnel not offloaded after adding vid"
+
+	log_test "vxlan - l3 vni"
+
+	ip link del dev vxlan0
+	ip link del dev br0
+	sysctl_restore net.ipv6.conf.default.disable_ipv6
+}
+
+offload_indication_vlan_aware_test()
+{
+	offload_indication_vlan_aware_setup_create
+	offload_indication_vlan_aware_fdb_test
+	offload_indication_vlan_aware_decap_route_test
+	offload_indication_vlan_aware_setup_destroy
+
+	log_info "offload indication - replay & cleanup - vlan aware"
+	offload_indication_vlan_aware_join_vxlan_first
+	offload_indication_vlan_aware_join_vxlan_last
+	offload_indication_vlan_aware_l3vni_test
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh
new file mode 100755
index 000000000000..38148f51877a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh
@@ -0,0 +1,141 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test vetoing of FDB entries that mlxsw can not offload. This exercises several
+# different veto vectors to test various rollback scenarios in the vxlan driver.
+
+: ${LOCAL_IP:=198.51.100.1}
+export LOCAL_IP
+
+: ${REMOTE_IP_1:=198.51.100.2}
+export REMOTE_IP_1
+
+: ${REMOTE_IP_2:=198.51.100.3}
+export REMOTE_IP_2
+
+: ${UDPCSUM_FLAFS:=noudpcsum}
+export UDPCSUM_FLAFS
+
+: ${MC_IP:=224.0.0.1}
+export MC_IP
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	fdb_create_veto_test
+	fdb_replace_veto_test
+	fdb_append_veto_test
+	fdb_changelink_veto_test
+"
+NUM_NETIFS=2
+source $lib_dir/lib.sh
+
+setup_prepare()
+{
+	swp1=${NETIFS[p1]}
+	swp2=${NETIFS[p2]}
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link set dev $swp1 up
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 up
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP dstport 4789
+	ip link set dev vxlan0 master br0
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev vxlan0 nomaster
+	ip link del dev vxlan0
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 nomaster
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+fdb_create_veto_test()
+{
+	RET=0
+
+	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \
+	       dst $REMOTE_IP_1 2>/dev/null
+	check_fail $? "multicast MAC not rejected"
+
+	bridge fdb add 01:02:03:04:05:06 dev vxlan0 self static \
+	       dst $REMOTE_IP_1 2>&1 >/dev/null | grep -q mlxsw_spectrum
+	check_err $? "multicast MAC rejected without extack"
+
+	log_test "vxlan FDB veto - create"
+}
+
+fdb_replace_veto_test()
+{
+	RET=0
+
+	bridge fdb add 00:01:02:03:04:05 dev vxlan0 self static \
+	       dst $REMOTE_IP_1
+	check_err $? "valid FDB rejected"
+
+	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \
+	       dst $REMOTE_IP_1 port 1234 2>/dev/null
+	check_fail $? "FDB with an explicit port not rejected"
+
+	bridge fdb replace 00:01:02:03:04:05 dev vxlan0 self static \
+	       dst $REMOTE_IP_1 port 1234 2>&1 >/dev/null \
+	    | grep -q mlxsw_spectrum
+	check_err $? "FDB with an explicit port rejected without extack"
+
+	log_test "vxlan FDB veto - replace"
+}
+
+fdb_append_veto_test()
+{
+	RET=0
+
+	bridge fdb add 00:00:00:00:00:00 dev vxlan0 self static \
+	       dst $REMOTE_IP_1
+	check_err $? "valid FDB rejected"
+
+	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \
+	       dst $REMOTE_IP_2 port 1234 2>/dev/null
+	check_fail $? "FDB with an explicit port not rejected"
+
+	bridge fdb append 00:00:00:00:00:00 dev vxlan0 self static \
+	       dst $REMOTE_IP_2 port 1234 2>&1 >/dev/null \
+	    | grep -q mlxsw_spectrum
+	check_err $? "FDB with an explicit port rejected without extack"
+
+	log_test "vxlan FDB veto - append"
+}
+
+fdb_changelink_veto_test()
+{
+	RET=0
+
+	ip link set dev vxlan0 type vxlan \
+	   group $MC_IP dev lo 2>/dev/null
+	check_fail $? "FDB with a multicast IP not rejected"
+
+	ip link set dev vxlan0 type vxlan \
+	   group $MC_IP dev lo 2>&1 >/dev/null \
+	    | grep -q mlxsw_spectrum
+	check_err $? "FDB with a multicast IP rejected without extack"
+
+	log_test "vxlan FDB veto - changelink"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh
new file mode 100755
index 000000000000..66c87aab86f6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto_ipv6.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN test for IPv6.
+
+LOCAL_IP=2001:db8:1::1
+REMOTE_IP_1=2001:db8:2::1
+REMOTE_IP_2=2001:db8:3::1
+UDPCSUM_FLAFS="udp6zerocsumrx udp6zerocsumtx"
+MC_IP=FF02::2
+
+source vxlan_fdb_veto.sh
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_flooding.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_flooding.sh
new file mode 100755
index 000000000000..af5ea50ed5c0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_flooding.sh
@@ -0,0 +1,326 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test VxLAN flooding. The device stores flood records in a singly linked list
+# where each record stores up to three IPv4 addresses of remote VTEPs. The test
+# verifies that packets are correctly flooded in various cases such as deletion
+# of a record in the middle of the list.
+#
+# +--------------------+
+# | H1 (vrf)           |
+# |    + $h1           |
+# |    | 203.0.113.1/24|
+# +----|---------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# | +--|--------------------------------------------------------------------+ |
+# | |  + $swp1                   BR0 (802.1d)                               | |
+# | |                                                                       | |
+# | |  + vxlan0 (vxlan)                                                     | |
+# | |    local 198.51.100.1                                                 | |
+# | |    remote 198.51.100.{2..13}                                          | |
+# | |    id 10 dstport 4789                                                 | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  198.51.100.0/24 via 192.0.2.2                                            |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 192.0.2.1/24                                                         |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                               R2 (vrf) |
+# |    + $rp2                                                   |
+# |      192.0.2.2/24                                           |
+# |                                                             |
+# +-------------------------------------------------------------+
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="flooding_test"
+NUM_NETIFS=4
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 203.0.113.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 203.0.113.1/24
+}
+
+switch_create()
+{
+	# Make sure the bridge uses the MAC address of the local port and
+	# not that of the VxLAN's device
+	ip link add dev br0 type bridge mcast_snooping 0
+	ip link set dev br0 address $(mac_get $swp1)
+
+	ip link add name vxlan0 type vxlan id 10 nolearning noudpcsum \
+		ttl 20 tos inherit local 198.51.100.1 dstport 4789
+
+	ip address add 198.51.100.1/32 dev lo
+
+	ip link set dev $swp1 master br0
+	ip link set dev vxlan0 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev vxlan0 up
+}
+
+switch_destroy()
+{
+	ip link set dev vxlan0 down
+	ip link set dev $swp1 down
+	ip link set dev br0 down
+
+	ip link set dev vxlan0 nomaster
+	ip link set dev $swp1 nomaster
+
+	ip address del 198.51.100.1/32 dev lo
+
+	ip link del dev vxlan0
+
+	ip link del dev br0
+}
+
+router1_create()
+{
+	# This router is in the default VRF, where the VxLAN device is
+	# performing the L3 lookup
+	ip link set dev $rp1 up
+	ip address add 192.0.2.1/24 dev $rp1
+	ip route add 198.51.100.0/24 via 192.0.2.2
+}
+
+router1_destroy()
+{
+	ip route del 198.51.100.0/24 via 192.0.2.2
+	ip address del 192.0.2.1/24 dev $rp1
+	ip link set dev $rp1 down
+}
+
+router2_create()
+{
+	# This router is not in the default VRF, so use simple_if_init()
+	simple_if_init $rp2 192.0.2.2/24
+}
+
+router2_destroy()
+{
+	simple_if_fini $rp2 192.0.2.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+flooding_remotes_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		bridge fdb append 00:00:00:00:00:00 dev vxlan0 self \
+			dst 198.51.100.$lsb
+	done
+}
+
+flooding_filters_add()
+{
+	local num_remotes=$1
+	local lsb
+	local i
+
+	# Prevent unwanted packets from entering the bridge and interfering
+	# with the test.
+	tc qdisc add dev br0 clsact
+	tc filter add dev br0 egress protocol all pref 1 handle 1 \
+		matchall skip_hw action drop
+	tc qdisc add dev $h1 clsact
+	tc filter add dev $h1 egress protocol all pref 1 handle 1 \
+		flower skip_hw dst_mac de:ad:be:ef:13:37 action pass
+	tc filter add dev $h1 egress protocol all pref 2 handle 2 \
+		matchall skip_hw action drop
+
+	tc qdisc add dev $rp2 clsact
+
+	for i in $(eval echo {1..$num_remotes}); do
+		lsb=$((i + 1))
+
+		tc filter add dev $rp2 ingress protocol ip pref $i handle $i \
+			flower ip_proto udp dst_ip 198.51.100.$lsb \
+			dst_port 4789 skip_sw action drop
+	done
+}
+
+flooding_filters_del()
+{
+	local num_remotes=$1
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc filter del dev $rp2 ingress protocol ip pref $i \
+			handle $i flower
+	done
+
+	tc qdisc del dev $rp2 clsact
+
+	tc filter del dev $h1 egress protocol all pref 2 handle 2 matchall
+	tc filter del dev $h1 egress protocol all pref 1 handle 1 flower
+	tc qdisc del dev $h1 clsact
+	tc filter del dev br0 egress protocol all pref 1 handle 1 matchall
+	tc qdisc del dev br0 clsact
+}
+
+flooding_check_packets()
+{
+	local packets=("$@")
+	local num_remotes=${#packets[@]}
+	local i
+
+	for i in $(eval echo {1..$num_remotes}); do
+		tc_check_packets "dev $rp2 ingress" $i ${packets[i - 1]}
+		check_err $? "remote $i - did not get expected number of packets"
+	done
+}
+
+flooding_test()
+{
+	# Use 12 remote VTEPs that will be stored in 4 records. The array
+	# 'packets' will store how many packets are expected to be received
+	# by each remote VTEP at each stage of the test
+	declare -a packets=(1 1 1 1 1 1 1 1 1 1 1 1)
+	local num_remotes=12
+
+	RET=0
+
+	# Add FDB entries for remote VTEPs and corresponding tc filters on the
+	# ingress of the nexthop router. These filters will count how many
+	# packets were flooded to each remote VTEP
+	flooding_remotes_add $num_remotes
+	flooding_filters_add $num_remotes
+
+	# Send one packet and make sure it is flooded to all the remote VTEPs
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 1 packet"
+
+	# Delete the third record which corresponds to VTEPs with LSB 8..10
+	# and check that packet is flooded correctly when we remove a record
+	# from the middle of the list
+	RET=0
+
+	packets=(2 2 2 2 2 2 1 1 1 2 2 2)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.8
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.9
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.10
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 2 packets"
+
+	# Delete the first record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 3 3 3 1 1 1 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.2
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.3
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.4
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 3 packets"
+
+	# Delete the last record and make sure the packet is flooded correctly
+	RET=0
+
+	packets=(2 2 2 4 4 4 1 1 1 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.11
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.12
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.13
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 4 packets"
+
+	# Delete the last record, one entry at a time and make sure single
+	# entries are correctly removed
+	RET=0
+
+	packets=(2 2 2 4 5 5 1 1 1 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.5
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 5 packets"
+
+	RET=0
+
+	packets=(2 2 2 4 5 6 1 1 1 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.6
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 6 packets"
+
+	RET=0
+
+	packets=(2 2 2 4 5 6 1 1 1 3 3 3)
+	bridge fdb del 00:00:00:00:00:00 dev vxlan0 self dst 198.51.100.7
+
+	$MZ $h1 -q -p 64 -b de:ad:be:ef:13:37 -t ip -c 1
+	flooding_check_packets "${packets[@]}"
+	log_test "flood after 7 packets"
+
+	flooding_filters_del $num_remotes
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh
new file mode 100755
index 000000000000..f2ea0163ddea
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan_ipv6.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN test for IPv6.
+
+ADDR_FAMILY=ipv6
+LOCAL_IP_1=2001:db8:1::1
+LOCAL_IP_2=2001:db8:1::2
+PREFIX_LEN=128
+UDPCSUM_FLAFS="udp6zerocsumrx udp6zerocsumtx"
+MC_IP=FF02::2
+IP_FLAG="-6"
+
+ALL_TESTS="
+	sanitization_test
+	offload_indication_test
+	sanitization_vlan_aware_test
+	offload_indication_vlan_aware_test
+"
+
+sanitization_single_dev_learning_enabled_ipv6_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 learning $UDPCSUM_FLAFS \
+		ttl 20 tos inherit local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+	log_test "vxlan device with learning enabled"
+}
+
+sanitization_single_dev_udp_checksum_ipv6_test()
+{
+	RET=0
+
+	ip link add dev br0 type bridge mcast_snooping 0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning \
+		noudp6zerocsumrx udp6zerocsumtx ttl 20 tos inherit \
+		local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+	log_test "vxlan device without zero udp checksum at RX"
+
+	ip link del dev vxlan0
+
+	ip link add name vxlan0 up type vxlan id 10 nolearning \
+		udp6zerocsumrx noudp6zerocsumtx ttl 20 tos inherit \
+		local $LOCAL_IP_1 dstport 4789
+
+	sanitization_single_dev_test_fail
+	log_test "vxlan device without zero udp checksum at TX"
+
+	ip link del dev vxlan0
+	ip link del dev br0
+
+}
+
+source vxlan.sh
diff --git a/tools/testing/selftests/drivers/net/napi_id.py b/tools/testing/selftests/drivers/net/napi_id.py
new file mode 100755
index 000000000000..d05eddcad539
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/napi_id.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_eq, NetDrvEpEnv
+from lib.py import bkg, cmd, rand_port, NetNSEnter
+
+def test_napi_id(cfg) -> None:
+    port = rand_port()
+    listen_cmd = f"{cfg.test_dir}/napi_id_helper {cfg.addr} {port}"
+
+    with bkg(listen_cmd, ksft_wait=3) as server:
+        cmd(f"echo a | socat - TCP:{cfg.baddr}:{port}", host=cfg.remote, shell=True)
+
+    ksft_eq(0, server.ret)
+
+def main() -> None:
+    with NetDrvEpEnv(__file__) as cfg:
+        ksft_run([test_napi_id], args=(cfg,))
+    ksft_exit()
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/napi_id_helper.c b/tools/testing/selftests/drivers/net/napi_id_helper.c
new file mode 100644
index 000000000000..7f49ca6c8637
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/napi_id_helper.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "../../net/lib/ksft.h"
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_storage address;
+	struct addrinfo *result;
+	struct addrinfo hints;
+	unsigned int napi_id;
+	socklen_t addr_len;
+	socklen_t optlen;
+	char buf[1024];
+	int opt = 1;
+	int family;
+	int server;
+	int client;
+	int ret;
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = AF_UNSPEC;
+	hints.ai_socktype = SOCK_STREAM;
+	hints.ai_flags = AI_PASSIVE;
+
+	ret = getaddrinfo(argv[1], argv[2], &hints, &result);
+	if (ret != 0) {
+		fprintf(stderr, "getaddrinfo: %s\n", gai_strerror(ret));
+		return 1;
+	}
+
+	family = result->ai_family;
+	addr_len = result->ai_addrlen;
+
+	server = socket(family, SOCK_STREAM, IPPROTO_TCP);
+	if (server < 0) {
+		perror("socket creation failed");
+		freeaddrinfo(result);
+		if (errno == EAFNOSUPPORT)
+			return -1;
+		return 1;
+	}
+
+	if (setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) {
+		perror("setsockopt");
+		freeaddrinfo(result);
+		return 1;
+	}
+
+	memcpy(&address, result->ai_addr, result->ai_addrlen);
+	freeaddrinfo(result);
+
+	if (bind(server, (struct sockaddr *)&address, addr_len) < 0) {
+		perror("bind failed");
+		return 1;
+	}
+
+	if (listen(server, 1) < 0) {
+		perror("listen");
+		return 1;
+	}
+
+	ksft_ready();
+
+	client = accept(server, NULL, 0);
+	if (client < 0) {
+		perror("accept");
+		return 1;
+	}
+
+	optlen = sizeof(napi_id);
+	ret = getsockopt(client, SOL_SOCKET, SO_INCOMING_NAPI_ID, &napi_id,
+			 &optlen);
+	if (ret != 0) {
+		perror("getsockopt");
+		return 1;
+	}
+
+	read(client, buf, 1024);
+
+	ksft_wait();
+
+	if (napi_id == 0) {
+		fprintf(stderr, "napi ID is 0\n");
+		return 1;
+	}
+
+	close(client);
+	close(server);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/drivers/net/napi_threaded.py b/tools/testing/selftests/drivers/net/napi_threaded.py
new file mode 100755
index 000000000000..f4be72b2145a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/napi_threaded.py
@@ -0,0 +1,143 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Test napi threaded states.
+"""
+
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_eq, ksft_ne, ksft_ge
+from lib.py import NetDrvEnv, NetdevFamily
+from lib.py import cmd, defer, ethtool
+
+
+def _assert_napi_threaded_enabled(nl, napi_id) -> None:
+    napi = nl.napi_get({'id': napi_id})
+    ksft_eq(napi['threaded'], 'enabled')
+    ksft_ne(napi.get('pid'), None)
+
+
+def _assert_napi_threaded_disabled(nl, napi_id) -> None:
+    napi = nl.napi_get({'id': napi_id})
+    ksft_eq(napi['threaded'], 'disabled')
+    ksft_eq(napi.get('pid'), None)
+
+
+def _set_threaded_state(cfg, threaded) -> None:
+    with open(f"/sys/class/net/{cfg.ifname}/threaded", "wb") as fp:
+        fp.write(str(threaded).encode('utf-8'))
+
+
+def _setup_deferred_cleanup(cfg) -> None:
+    combined = ethtool(f"-l {cfg.ifname}", json=True)[0].get("combined", 0)
+    ksft_ge(combined, 2)
+    defer(ethtool, f"-L {cfg.ifname} combined {combined}")
+
+    threaded = cmd(f"cat /sys/class/net/{cfg.ifname}/threaded").stdout
+    defer(_set_threaded_state, cfg, threaded)
+
+    return combined
+
+
+def napi_init(cfg, nl) -> None:
+    """
+    Test that threaded state (in the persistent NAPI config) gets updated
+    even when NAPI with given ID is not allocated at the time.
+    """
+
+    qcnt = _setup_deferred_cleanup(cfg)
+
+    _set_threaded_state(cfg, 1)
+    cmd(f"ethtool -L {cfg.ifname} combined 1")
+    _set_threaded_state(cfg, 0)
+    cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
+
+    napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
+    for napi in napis:
+        ksft_eq(napi['threaded'], 'disabled')
+        ksft_eq(napi.get('pid'), None)
+
+    cmd(f"ethtool -L {cfg.ifname} combined 1")
+    _set_threaded_state(cfg, 1)
+    cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
+
+    napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
+    for napi in napis:
+        ksft_eq(napi['threaded'], 'enabled')
+        ksft_ne(napi.get('pid'), None)
+
+
+def enable_dev_threaded_disable_napi_threaded(cfg, nl) -> None:
+    """
+    Test that when napi threaded is enabled at device level and
+    then disabled at napi level for one napi, the threaded state
+    of all napis is preserved after a change in number of queues.
+    """
+
+    napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_ge(len(napis), 2)
+
+    napi0_id = napis[0]['id']
+    napi1_id = napis[1]['id']
+
+    qcnt = _setup_deferred_cleanup(cfg)
+
+    # set threaded
+    _set_threaded_state(cfg, 1)
+
+    # check napi threaded is set for both napis
+    _assert_napi_threaded_enabled(nl, napi0_id)
+    _assert_napi_threaded_enabled(nl, napi1_id)
+
+    # disable threaded for napi1
+    nl.napi_set({'id': napi1_id, 'threaded': 'disabled'})
+
+    cmd(f"ethtool -L {cfg.ifname} combined 1")
+    cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
+    _assert_napi_threaded_enabled(nl, napi0_id)
+    _assert_napi_threaded_disabled(nl, napi1_id)
+
+
+def change_num_queues(cfg, nl) -> None:
+    """
+    Test that when napi threaded is enabled at device level,
+    the napi threaded state is preserved after a change in
+    number of queues.
+    """
+
+    napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_ge(len(napis), 2)
+
+    napi0_id = napis[0]['id']
+    napi1_id = napis[1]['id']
+
+    qcnt = _setup_deferred_cleanup(cfg)
+
+    # set threaded
+    _set_threaded_state(cfg, 1)
+
+    # check napi threaded is set for both napis
+    _assert_napi_threaded_enabled(nl, napi0_id)
+    _assert_napi_threaded_enabled(nl, napi1_id)
+
+    cmd(f"ethtool -L {cfg.ifname} combined 1")
+    cmd(f"ethtool -L {cfg.ifname} combined {qcnt}")
+
+    # check napi threaded is set for both napis
+    _assert_napi_threaded_enabled(nl, napi0_id)
+    _assert_napi_threaded_enabled(nl, napi1_id)
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEnv(__file__, queue_count=2) as cfg:
+        ksft_run([napi_init,
+                  change_num_queues,
+                  enable_dev_threaded_disable_napi_threaded],
+                 args=(cfg, NetdevFamily()))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/netcons_basic.sh b/tools/testing/selftests/drivers/net/netcons_basic.sh
new file mode 100755
index 000000000000..2022f3061738
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_basic.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test creates two netdevsim virtual interfaces, assigns one of them (the
+# "destination interface") to a new namespace, and assigns IP addresses to both
+# interfaces.
+#
+# It listens on the destination interface using socat and configures a dynamic
+# target on netconsole, pointing to the destination IP address.
+#
+# Finally, it checks whether the message was received properly on the
+# destination interface.  Note that this test may pollute the kernel log buffer
+# (dmesg) and relies on dynamic configuration and namespaces being configured.
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+
+# The content of kmsg will be save to the following file
+OUTPUT_FILE="/tmp/${TARGET}"
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup EXIT
+
+# Run the test twice, with different format modes
+for FORMAT in "basic" "extended"
+do
+	for IP_VERSION in "ipv6" "ipv4"
+	do
+		echo "Running with target mode: ${FORMAT} (${IP_VERSION})"
+		# Set current loglevel to KERN_INFO(6), and default to
+		# KERN_NOTICE(5)
+		echo "6 5" > /proc/sys/kernel/printk
+		# Create one namespace and two interfaces
+		set_network "${IP_VERSION}"
+		# Create a dynamic target for netconsole
+		create_dynamic_target "${FORMAT}"
+		# Only set userdata for extended format
+		if [ "$FORMAT" == "extended" ]
+		then
+			# Set userdata "key" with the "value" value
+			set_user_data
+		fi
+		# Listed for netconsole port inside the namespace and
+		# destination interface
+		listen_port_and_save_to "${OUTPUT_FILE}" "${IP_VERSION}" &
+		# Wait for socat to start and listen to the port.
+		wait_for_port "${NAMESPACE}" "${PORT}" "${IP_VERSION}"
+		# Send the message
+		echo "${MSG}: ${TARGET}" > /dev/kmsg
+		# Wait until socat saves the file to disk
+		busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+
+		# Make sure the message was received in the dst part
+		# and exit
+		validate_result "${OUTPUT_FILE}" "${FORMAT}"
+		# kill socat in case it is still running
+		pkill_socat
+		cleanup
+		echo "${FORMAT} : ${IP_VERSION} : Test passed" >&2
+	done
+done
+
+trap - EXIT
+exit "${ksft_pass}"
diff --git a/tools/testing/selftests/drivers/net/netcons_cmdline.sh b/tools/testing/selftests/drivers/net/netcons_cmdline.sh
new file mode 100755
index 000000000000..d1d23dc67f99
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_cmdline.sh
@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This is a selftest to test cmdline arguments on netconsole.
+# It exercises loading of netconsole from cmdline instead of the dynamic
+# reconfiguration. This includes parsing the long netconsole= line and all the
+# flow through init_netconsole().
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+
+check_netconsole_module
+
+modprobe netdevsim 2> /dev/null || true
+rmmod netconsole 2> /dev/null || true
+
+# Check for basic system dependency and exit if not found
+# check_for_dependencies
+# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
+echo "6 5" > /proc/sys/kernel/printk
+# Remove the namespace and network interfaces
+trap do_cleanup EXIT
+# Create one namespace and two interfaces
+set_network
+
+# Run the test twice, with different cmdline parameters
+for BINDMODE in "ifname" "mac"
+do
+	echo "Running with bind mode: ${BINDMODE}" >&2
+	# Create the command line for netconsole, with the configuration from
+	# the function above
+	CMDLINE=$(create_cmdline_str "${BINDMODE}")
+
+	# The content of kmsg will be save to the following file
+	OUTPUT_FILE="/tmp/${TARGET}-${BINDMODE}"
+
+	# Load the module, with the cmdline set
+	modprobe netconsole "${CMDLINE}"
+
+	# Listed for netconsole port inside the namespace and destination
+	# interface
+	listen_port_and_save_to "${OUTPUT_FILE}" &
+	# Wait for socat to start and listen to the port.
+	wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
+	# Send the message
+	echo "${MSG}: ${TARGET}" > /dev/kmsg
+	# Wait until socat saves the file to disk
+	busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+	# Make sure the message was received in the dst part
+	# and exit
+	validate_msg "${OUTPUT_FILE}"
+
+	# kill socat in case it is still running
+	pkill_socat
+	# Unload the module
+	rmmod netconsole
+	echo "${BINDMODE} : Test passed" >&2
+done
+
+exit "${ksft_pass}"
diff --git a/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh
new file mode 100755
index 000000000000..4a71e01a230c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_fragmented_msg.sh
@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test netconsole's message fragmentation functionality.
+#
+# When a message exceeds the maximum packet size, netconsole splits it into
+# multiple fragments for transmission. This test verifies:
+#  - Correct fragmentation of large messages
+#  - Proper reassembly of fragments at the receiver
+#  - Preservation of userdata across fragments
+#  - Behavior with and without kernel release version appending
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+
+# The content of kmsg will be save to the following file
+OUTPUT_FILE="/tmp/${TARGET}"
+
+# set userdata to a long value. In this case, it is "1-2-3-4...50-"
+USERDATA_VALUE=$(printf -- '%.2s-' {1..60})
+
+# Convert the header string in a regexp, so, we can remove
+# the second header as well.
+# A header looks like "13,468,514729715,-,ncfrag=0/1135;". If
+# release is appended, you might find something like:L
+# "6.13.0-04048-g4f561a87745a,13,468,514729715,-,ncfrag=0/1135;"
+function header_to_regex() {
+	# header is everything before ;
+	local HEADER="${1}"
+	REGEX=$(echo "${HEADER}" | cut -d'=' -f1)
+	echo "${REGEX}=[0-9]*\/[0-9]*;"
+}
+
+# We have two headers in the message. Remove both to get the full message,
+# and extract the full message.
+function extract_msg() {
+	local MSGFILE="${1}"
+	# Extract the header, which is the very first thing that arrives in the
+	# first list.
+	HEADER=$(sed -n '1p' "${MSGFILE}" | cut -d';' -f1)
+	HEADER_REGEX=$(header_to_regex "${HEADER}")
+
+	# Remove the two headers from the received message
+	# This will return the message without any header, similarly to what
+	# was sent.
+	sed "s/""${HEADER_REGEX}""//g" "${MSGFILE}"
+}
+
+# Validate the message, which has two messages glued together.
+# unwrap them to make sure all the characters were transmitted.
+# File will look like the following:
+#  13,468,514729715,-,ncfrag=0/1135;<message>
+#   key=<part of key>-13,468,514729715,-,ncfrag=967/1135;<rest of the key>
+function validate_fragmented_result() {
+	# Discard the netconsole headers, and assemble the full message
+	RCVMSG=$(extract_msg "${1}")
+
+	# check for the main message
+	if ! echo "${RCVMSG}" | grep -q "${MSG}"; then
+		echo "Message body doesn't match." >&2
+		echo "msg received=" "${RCVMSG}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	# check userdata
+	if ! echo "${RCVMSG}" | grep -q "${USERDATA_VALUE}"; then
+		echo "message userdata doesn't match" >&2
+		echo "msg received=" "${RCVMSG}" >&2
+		exit "${ksft_fail}"
+	fi
+	# test passed. hooray
+}
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
+echo "6 5" > /proc/sys/kernel/printk
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup EXIT
+# Create one namespace and two interfaces
+set_network
+# Create a dynamic target for netconsole
+create_dynamic_target
+# Set userdata "key" with the "value" value
+set_user_data
+
+
+# TEST 1: Send message and userdata. They will fragment
+# =======
+MSG=$(printf -- 'MSG%.3s=' {1..150})
+
+# Listen for netconsole port inside the namespace and destination interface
+listen_port_and_save_to "${OUTPUT_FILE}" &
+# Wait for socat to start and listen to the port.
+wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
+# Send the message
+echo "${MSG}: ${TARGET}" > /dev/kmsg
+# Wait until socat saves the file to disk
+busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+# Check if the message was not corrupted
+validate_fragmented_result "${OUTPUT_FILE}"
+
+# TEST 2: Test with smaller message, and without release appended
+# =======
+MSG=$(printf -- 'FOOBAR%.3s=' {1..100})
+# Let's disable release and test again.
+disable_release_append
+
+listen_port_and_save_to "${OUTPUT_FILE}" &
+wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
+echo "${MSG}: ${TARGET}" > /dev/kmsg
+busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+validate_fragmented_result "${OUTPUT_FILE}"
+exit "${ksft_pass}"
diff --git a/tools/testing/selftests/drivers/net/netcons_overflow.sh b/tools/testing/selftests/drivers/net/netcons_overflow.sh
new file mode 100755
index 000000000000..06089643b771
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_overflow.sh
@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test verifies that users can successfully create up to
+# MAX_USERDATA_ITEMS userdata entries without encountering any failures.
+#
+# Additionally, it tests for expected failure when attempting to exceed this
+# maximum limit.
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+# This is coming from netconsole code. Check for it in drivers/net/netconsole.c
+MAX_USERDATA_ITEMS=256
+
+# Function to create userdata entries
+function create_userdata_max_entries() {
+	# All these keys should be created without any error
+	for i in $(seq $MAX_USERDATA_ITEMS)
+	do
+		# USERDATA_KEY is used by set_user_data
+		USERDATA_KEY="key"${i}
+		set_user_data
+	done
+}
+
+# Function to verify the entry limit
+function verify_entry_limit() {
+	# Allowing the test to fail without exiting, since the next command
+	# will fail
+	set +e
+	mkdir "${NETCONS_PATH}/userdata/key_that_will_fail" 2> /dev/null
+	ret="$?"
+	set -e
+	if [ "$ret" -eq 0 ];
+	then
+		echo "Adding more than ${MAX_USERDATA_ITEMS} entries in userdata should fail, but it didn't" >&2
+		ls "${NETCONS_PATH}/userdata/" >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+# ========== #
+# Start here #
+# ========== #
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup EXIT
+# Create one namespace and two interfaces
+set_network
+# Create a dynamic target for netconsole
+create_dynamic_target
+# populate the maximum number of supported keys in userdata
+create_userdata_max_entries
+# Verify an additional entry is not allowed
+verify_entry_limit
+exit "${ksft_pass}"
diff --git a/tools/testing/selftests/drivers/net/netcons_sysdata.sh b/tools/testing/selftests/drivers/net/netcons_sysdata.sh
new file mode 100755
index 000000000000..baf69031089e
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_sysdata.sh
@@ -0,0 +1,272 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A test that makes sure that sysdata runtime CPU data is properly set
+# when a message is sent.
+#
+# There are 3 different tests, every time sent using a random CPU.
+#  - Test #1
+#    * Only enable cpu_nr sysdata feature.
+#  - Test #2
+#    * Keep cpu_nr sysdata feature enable and enable userdata.
+#  - Test #3
+#    * keep userdata enabled, and disable sysdata cpu_nr feature.
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+
+# Enable the sysdata cpu_nr feature
+function set_cpu_nr() {
+	if [[ ! -f "${NETCONS_PATH}/userdata/cpu_nr_enabled" ]]
+	then
+		echo "Populate CPU configfs path not available in ${NETCONS_PATH}/userdata/cpu_nr_enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	echo 1 > "${NETCONS_PATH}/userdata/cpu_nr_enabled"
+}
+
+# Enable the taskname to be appended to sysdata
+function set_taskname() {
+	if [[ ! -f "${NETCONS_PATH}/userdata/taskname_enabled" ]]
+	then
+		echo "Not able to enable taskname sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/taskname_enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	echo 1 > "${NETCONS_PATH}/userdata/taskname_enabled"
+}
+
+# Enable the release to be appended to sysdata
+function set_release() {
+	if [[ ! -f "${NETCONS_PATH}/userdata/release_enabled" ]]
+	then
+		echo "Not able to enable release sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/release_enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	echo 1 > "${NETCONS_PATH}/userdata/release_enabled"
+}
+
+# Enable the msgid to be appended to sysdata
+function set_msgid() {
+	if [[ ! -f "${NETCONS_PATH}/userdata/msgid_enabled" ]]
+	then
+		echo "Not able to enable msgid sysdata append. Configfs not available in ${NETCONS_PATH}/userdata/msgid_enabled" >&2
+		exit "${ksft_skip}"
+	fi
+
+	echo 1 > "${NETCONS_PATH}/userdata/msgid_enabled"
+}
+
+# Disable the sysdata cpu_nr feature
+function unset_cpu_nr() {
+	echo 0 > "${NETCONS_PATH}/userdata/cpu_nr_enabled"
+}
+
+# Once called, taskname=<..> will not be appended anymore
+function unset_taskname() {
+	echo 0 > "${NETCONS_PATH}/userdata/taskname_enabled"
+}
+
+function unset_release() {
+	echo 0 > "${NETCONS_PATH}/userdata/release_enabled"
+}
+
+function unset_msgid() {
+	echo 0 > "${NETCONS_PATH}/userdata/msgid_enabled"
+}
+
+# Test if MSG contains sysdata
+function validate_sysdata() {
+	# OUTPUT_FILE will contain something like:
+	# 6.11.1-0_fbk0_rc13_509_g30d75cea12f7,13,1822,115075213798,-;netconsole selftest: netcons_gtJHM
+	#  userdatakey=userdatavalue
+	#  cpu=X
+	#  taskname=<taskname>
+	#  msgid=<id>
+
+	# Echo is what this test uses to create the message. See runtest()
+	# function
+	SENDER="echo"
+
+	if [ ! -f "$OUTPUT_FILE" ]; then
+		echo "FAIL: File was not generated." >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "${MSG}" "${OUTPUT_FILE}"; then
+		echo "FAIL: ${MSG} not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	# Check if cpu=XX exists in the file and matches the one used
+	# in taskset(1)
+	if ! grep -q "cpu=${CPU}\+" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'cpu=${CPU}' not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "taskname=${SENDER}" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'taskname=echo' not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "msgid=[0-9]\+$" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'msgid=<id>' not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	rm "${OUTPUT_FILE}"
+	pkill_socat
+}
+
+function validate_release() {
+	RELEASE=$(uname -r)
+
+	if [ ! -f "$OUTPUT_FILE" ]; then
+		echo "FAIL: File was not generated." >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "release=${RELEASE}" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'release=${RELEASE}' not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+}
+
+# Test if MSG content exists in OUTPUT_FILE but no `cpu=` and `taskname=`
+# strings
+function validate_no_sysdata() {
+	if [ ! -f "$OUTPUT_FILE" ]; then
+		echo "FAIL: File was not generated." >&2
+		exit "${ksft_fail}"
+	fi
+
+	if ! grep -q "${MSG}" "${OUTPUT_FILE}"; then
+		echo "FAIL: ${MSG} not found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if grep -q "cpu=" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'cpu=  found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if grep -q "taskname=" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'taskname=  found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if grep -q "release=" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'release=  found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	if grep -q "msgid=" "${OUTPUT_FILE}"; then
+		echo "FAIL: 'msgid=  found in ${OUTPUT_FILE}" >&2
+		cat "${OUTPUT_FILE}" >&2
+		exit "${ksft_fail}"
+	fi
+
+	rm "${OUTPUT_FILE}"
+}
+
+# Start socat, send the message and wait for the file to show up in the file
+# system
+function runtest {
+	# Listen for netconsole port inside the namespace and destination
+	# interface
+	listen_port_and_save_to "${OUTPUT_FILE}" &
+	# Wait for socat to start and listen to the port.
+	wait_local_port_listen "${NAMESPACE}" "${PORT}" udp
+	# Send the message
+	taskset -c "${CPU}" echo "${MSG}: ${TARGET}" > /dev/kmsg
+	# Wait until socat saves the file to disk
+	busywait "${BUSYWAIT_TIMEOUT}" test -s "${OUTPUT_FILE}"
+}
+
+# ========== #
+# Start here #
+# ========== #
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+# This test also depends on taskset(1). Check for it before starting the test
+check_for_taskset
+
+# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
+echo "6 5" > /proc/sys/kernel/printk
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup EXIT
+# Create one namespace and two interfaces
+set_network
+# Create a dynamic target for netconsole
+create_dynamic_target
+
+#====================================================
+# TEST #1
+# Send message from a random CPU
+#====================================================
+# Random CPU in the system
+CPU=$((RANDOM % $(nproc)))
+OUTPUT_FILE="/tmp/${TARGET}_1"
+MSG="Test #1 from CPU${CPU}"
+# Enable the auto population of cpu_nr
+set_cpu_nr
+# Enable taskname to be appended to sysdata
+set_taskname
+set_release
+set_msgid
+runtest
+# Make sure the message was received in the dst part
+# and exit
+validate_release
+validate_sysdata
+
+#====================================================
+# TEST #2
+# This test now adds userdata together with sysdata
+# ===================================================
+# Get a new random CPU
+CPU=$((RANDOM % $(nproc)))
+OUTPUT_FILE="/tmp/${TARGET}_2"
+MSG="Test #2 from CPU${CPU}"
+set_user_data
+runtest
+validate_release
+validate_sysdata
+
+# ===================================================
+# TEST #3
+# Unset all sysdata, fail if any userdata is set
+# ===================================================
+CPU=$((RANDOM % $(nproc)))
+OUTPUT_FILE="/tmp/${TARGET}_3"
+MSG="Test #3 from CPU${CPU}"
+unset_cpu_nr
+unset_taskname
+unset_release
+unset_msgid
+runtest
+# At this time, cpu= shouldn't be present in the msg
+validate_no_sysdata
+
+exit "${ksft_pass}"
diff --git a/tools/testing/selftests/drivers/net/netcons_torture.sh b/tools/testing/selftests/drivers/net/netcons_torture.sh
new file mode 100755
index 000000000000..2ce9ee3719d1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netcons_torture.sh
@@ -0,0 +1,130 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Repeatedly send kernel messages, toggles netconsole targets on and off,
+# creates and deletes targets in parallel, and toggles the source interface to
+# simulate stress conditions.
+#
+# This test aims to verify the robustness of netconsole under dynamic
+# configurations and concurrent operations.
+#
+# The major goal is to run this test with LOCKDEP, Kmemleak and KASAN to make
+# sure no issues is reported.
+#
+# Author: Breno Leitao <leitao@debian.org>
+
+set -euo pipefail
+
+SCRIPTDIR=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "${SCRIPTDIR}"/lib/sh/lib_netcons.sh
+
+# Number of times the main loop run
+ITERATIONS=${1:-150}
+
+# Only test extended format
+FORMAT="extended"
+# And ipv6 only
+IP_VERSION="ipv6"
+
+# Create, enable and delete some targets.
+create_and_delete_random_target() {
+	COUNT=2
+	RND_PREFIX=$(mktemp -u netcons_rnd_XXXX_)
+
+	if [ -d "${NETCONS_CONFIGFS}/${RND_PREFIX}${COUNT}"  ] || \
+	   [ -d "${NETCONS_CONFIGFS}/${RND_PREFIX}0" ]; then
+		echo "Function didn't finish yet, skipping it." >&2
+		return
+	fi
+
+	# enable COUNT targets
+	for i in $(seq ${COUNT})
+	do
+		RND_TARGET="${RND_PREFIX}"${i}
+		RND_TARGET_PATH="${NETCONS_CONFIGFS}"/"${RND_TARGET}"
+
+		# Basic population so the target can come up
+		_create_dynamic_target "${FORMAT}" "${RND_TARGET_PATH}"
+	done
+
+	echo "netconsole selftest: ${COUNT} additional targets were created" > /dev/kmsg
+	# disable them all
+	for i in $(seq ${COUNT})
+	do
+		RND_TARGET="${RND_PREFIX}"${i}
+		RND_TARGET_PATH="${NETCONS_CONFIGFS}"/"${RND_TARGET}"
+		if [[ $(cat "${RND_TARGET_PATH}/enabled") -eq 1 ]]
+		then
+			echo 0 > "${RND_TARGET_PATH}"/enabled
+		fi
+		rmdir "${RND_TARGET_PATH}"
+	done
+}
+
+# Disable and enable the target mid-air, while messages
+# are being transmitted.
+toggle_netcons_target() {
+	for i in $(seq 2)
+	do
+		if [ ! -d "${NETCONS_PATH}" ]
+		then
+			break
+		fi
+		echo 0 > "${NETCONS_PATH}"/enabled 2> /dev/null || true
+		# Try to enable a bit harder, given it might fail to enable
+		# Write to `enabled` might fail depending on the lock, which is
+		# highly contentious here
+		for _ in $(seq 5)
+		do
+			echo 1 > "${NETCONS_PATH}"/enabled 2> /dev/null || true
+		done
+	done
+}
+
+toggle_iface(){
+	ip link set "${SRCIF}" down
+	ip link set "${SRCIF}" up
+}
+
+# Start here
+
+modprobe netdevsim 2> /dev/null || true
+modprobe netconsole 2> /dev/null || true
+
+# Check for basic system dependency and exit if not found
+check_for_dependencies
+# Set current loglevel to KERN_INFO(6), and default to KERN_NOTICE(5)
+echo "6 5" > /proc/sys/kernel/printk
+# Remove the namespace, interfaces and netconsole target on exit
+trap cleanup EXIT
+# Create one namespace and two interfaces
+set_network "${IP_VERSION}"
+# Create a dynamic target for netconsole
+create_dynamic_target "${FORMAT}"
+
+for i in $(seq "$ITERATIONS")
+do
+	for _ in $(seq 10)
+	do
+		echo "${MSG}: ${TARGET} ${i}" > /dev/kmsg
+	done
+	wait
+
+	if (( i % 30 == 0 )); then
+		toggle_netcons_target &
+	fi
+
+	if (( i % 50 == 0 )); then
+		# create some targets, enable them, send msg and disable
+		# all in a parallel thread
+		create_and_delete_random_target &
+	fi
+
+	if (( i % 70 == 0 )); then
+		toggle_iface &
+	fi
+done
+wait
+
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/drivers/net/netdevsim/Makefile b/tools/testing/selftests/drivers/net/netdevsim/Makefile
new file mode 100644
index 000000000000..1a228c5430f5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/Makefile
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS := \
+	devlink.sh \
+	devlink_in_netns.sh \
+	devlink_trap.sh \
+	ethtool-coalesce.sh \
+	ethtool-features.sh \
+	ethtool-fec.sh \
+	ethtool-pause.sh \
+	fib.sh \
+	fib_notifications.sh \
+	hw_stats_l3.sh \
+	macsec-offload.sh \
+	nexthop.sh \
+	peer.sh \
+	psample.sh \
+	tc-mq-visibility.sh \
+	udp_tunnel_nic.sh \
+# end of TEST_PROGS
+
+TEST_FILES := \
+	ethtool-common.sh
+# end of TEST_FILES
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/netdevsim/config b/tools/testing/selftests/drivers/net/netdevsim/config
new file mode 100644
index 000000000000..5117c78ddf0a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/config
@@ -0,0 +1,11 @@
+CONFIG_DUMMY=y
+CONFIG_GENEVE=m
+CONFIG_IPV6=y
+CONFIG_MACSEC=m
+CONFIG_NETDEVSIM=m
+CONFIG_NET_SCH_MQPRIO=y
+CONFIG_NET_SCH_MULTIQ=y
+CONFIG_NET_SCH_PRIO=y
+CONFIG_PSAMPLE=y
+CONFIG_PTP_1588_CLOCK_MOCK=y
+CONFIG_VXLAN=m
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
new file mode 100755
index 000000000000..1b529ccaf050
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink.sh
@@ -0,0 +1,879 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="fw_flash_test params_test  \
+	   params_default_test regions_test reload_test \
+	   netns_reload_test resource_test dev_info_test \
+	   empty_reporter_test dummy_reporter_test rate_test"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+BUS_ADDR=10
+PORT_COUNT=4
+VF_COUNT=4
+DEV_NAME=netdevsim$BUS_ADDR
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV_NAME/
+DL_HANDLE=netdevsim/$DEV_NAME
+
+wait_for_devlink()
+{
+	"$@" | grep -q $DL_HANDLE
+}
+
+devlink_wait()
+{
+	local timeout=$1
+
+	busywait "$timeout" wait_for_devlink devlink dev
+}
+
+fw_flash_test()
+{
+	DUMMYFILE=$(find /lib/firmware -type f -printf '%P\n' | head -1)
+	RET=0
+
+	if [ -z "$DUMMYFILE" ]
+	then
+		echo "SKIP: unable to find suitable dummy firmware file"
+		return
+	fi
+
+	echo "10"> $DEBUGFS_DIR/fw_update_flash_chunk_time_ms
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE
+	check_err $? "Failed to flash with status updates on"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE component fw.mgmt
+	check_err $? "Failed to flash with component attribute"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite settings
+	check_fail $? "Flash with overwrite settings should be rejected"
+
+	echo "1"> $DEBUGFS_DIR/fw_update_overwrite_mask
+	check_err $? "Failed to change allowed overwrite mask"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite settings
+	check_err $? "Failed to flash with settings overwrite enabled"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite identifiers
+	check_fail $? "Flash with overwrite settings should be identifiers"
+
+	echo "3"> $DEBUGFS_DIR/fw_update_overwrite_mask
+	check_err $? "Failed to change allowed overwrite mask"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE overwrite identifiers overwrite settings
+	check_err $? "Failed to flash with settings and identifiers overwrite enabled"
+
+	echo "n"> $DEBUGFS_DIR/fw_update_status
+	check_err $? "Failed to disable status updates"
+
+	devlink dev flash $DL_HANDLE file $DUMMYFILE
+	check_err $? "Failed to flash with status updates off"
+
+	log_test "fw flash test"
+}
+
+param_get()
+{
+	local name=$1
+	local attr=${2:-value}
+	local cmode=${3:-driverinit}
+
+	cmd_jq "devlink dev param show $DL_HANDLE name $name -j" \
+	       '.[][][].values[] | select(.cmode == "'"$cmode"'").'"$attr"
+}
+
+param_set()
+{
+	local name=$1
+	local value=$2
+	local cmode=${3:-driverinit}
+
+	devlink dev param set $DL_HANDLE name $name cmode $cmode value $value
+}
+
+param_set_default()
+{
+	local name=$1
+	local cmode=${2:-driverinit}
+
+	devlink dev param set $DL_HANDLE name $name default cmode $cmode
+}
+
+check_value()
+{
+	local name=$1
+	local phase_name=$2
+	local expected_param_value=$3
+	local expected_debugfs_value=$4
+	local cmode=${5:-driverinit}
+	local value
+	local attr="value"
+
+	if [[ "$phase_name" == *"default"* ]]; then
+		attr="default"
+	fi
+
+	value=$(param_get $name $attr $cmode)
+	check_err $? "Failed to get $name param $attr"
+	[ "$value" == "$expected_param_value" ]
+	check_err $? "Unexpected $phase_name $name param $attr"
+	value=$(<$DEBUGFS_DIR/$name)
+	check_err $? "Failed to get $name debugfs value"
+	[ "$value" == "$expected_debugfs_value" ]
+	check_err $? "Unexpected $phase_name $name debugfs value"
+}
+
+params_test()
+{
+	RET=0
+
+	local max_macs
+	local test1
+
+	check_value max_macs initial 32 32
+	check_value test1 initial true Y
+
+	param_set max_macs 16
+	check_err $? "Failed to set max_macs param value"
+	param_set test1 false
+	check_err $? "Failed to set test1 param value"
+
+	check_value max_macs post-set 16 32
+	check_value test1 post-set false Y
+
+	devlink dev reload $DL_HANDLE
+
+	check_value max_macs post-reload 16 16
+	check_value test1 post-reload false N
+
+	log_test "params test"
+}
+
+value_to_debugfs()
+{
+	local value=$1
+
+	case "$value" in
+		true)
+			echo "Y"
+			;;
+		false)
+			echo "N"
+			;;
+		*)
+			echo "$value"
+			;;
+	esac
+}
+
+test_default()
+{
+	local param_name=$1
+	local new_value=$2
+	local expected_default=$3
+	local cmode=${4:-driverinit}
+	local default_debugfs
+	local new_debugfs
+	local expected_debugfs
+
+	default_debugfs=$(value_to_debugfs $expected_default)
+	new_debugfs=$(value_to_debugfs $new_value)
+
+	expected_debugfs=$default_debugfs
+	check_value $param_name initial-default $expected_default $expected_debugfs $cmode
+
+	param_set $param_name $new_value $cmode
+	check_err $? "Failed to set $param_name to $new_value"
+
+	expected_debugfs=$([ "$cmode" == "runtime" ] && echo "$new_debugfs" || echo "$default_debugfs")
+	check_value $param_name post-set $new_value $expected_debugfs $cmode
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload device"
+
+	expected_debugfs=$new_debugfs
+	check_value $param_name post-reload-new-value $new_value $expected_debugfs $cmode
+
+	param_set_default $param_name $cmode
+	check_err $? "Failed to set $param_name to default"
+
+	expected_debugfs=$([ "$cmode" == "runtime" ] && echo "$default_debugfs" || echo "$new_debugfs")
+	check_value $param_name post-set-default $expected_default $expected_debugfs $cmode
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload device"
+
+	expected_debugfs=$default_debugfs
+	check_value $param_name post-reload-default $expected_default $expected_debugfs $cmode
+}
+
+params_default_test()
+{
+	RET=0
+
+	if ! devlink dev param help 2>&1 | grep -q "value VALUE | default"; then
+		echo "SKIP: devlink cli missing default feature"
+		return
+	fi
+
+	# Remove side effects of previous tests. Use plain param_set, because
+	# param_set_default is a feature under test here.
+	param_set max_macs 32 driverinit
+	check_err $? "Failed to reset max_macs to default value"
+	param_set test1 true driverinit
+	check_err $? "Failed to reset test1 to default value"
+	param_set test2 1234 runtime
+	check_err $? "Failed to reset test2 to default value"
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload device for clean state"
+
+	test_default max_macs 16 32 driverinit
+	test_default test1 false true driverinit
+	test_default test2 100 1234 runtime
+
+	log_test "params default test"
+}
+
+check_region_size()
+{
+	local name=$1
+	local size
+
+	size=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].size')
+	check_err $? "Failed to get $name region size"
+	[ $size -eq 32768 ]
+	check_err $? "Invalid $name region size"
+}
+
+check_region_snapshot_count()
+{
+	local name=$1
+	local phase_name=$2
+	local expected_count=$3
+	local count
+
+	count=$(devlink region show $DL_HANDLE/$name -j | jq -e -r '.[][].snapshot | length')
+	[ $count -eq $expected_count ]
+	check_err $? "Unexpected $phase_name snapshot count"
+}
+
+regions_test()
+{
+	RET=0
+
+	local count
+
+	check_region_size dummy
+	check_region_snapshot_count dummy initial 0
+
+	echo ""> $DEBUGFS_DIR/take_snapshot
+	check_err $? "Failed to take first dummy region snapshot"
+	check_region_snapshot_count dummy post-first-snapshot 1
+
+	echo ""> $DEBUGFS_DIR/take_snapshot
+	check_err $? "Failed to take second dummy region snapshot"
+	check_region_snapshot_count dummy post-second-snapshot 2
+
+	echo ""> $DEBUGFS_DIR/take_snapshot
+	check_err $? "Failed to take third dummy region snapshot"
+	check_region_snapshot_count dummy post-third-snapshot 3
+
+	devlink region del $DL_HANDLE/dummy snapshot 1
+	check_err $? "Failed to delete first dummy region snapshot"
+
+	check_region_snapshot_count dummy post-first-delete 2
+
+	devlink region new $DL_HANDLE/dummy snapshot 25
+	check_err $? "Failed to create a new snapshot with id 25"
+
+	check_region_snapshot_count dummy post-first-request 3
+
+	devlink region dump $DL_HANDLE/dummy snapshot 25 >> /dev/null
+	check_err $? "Failed to dump snapshot with id 25"
+
+	devlink region read $DL_HANDLE/dummy snapshot 25 addr 0 len 1 >> /dev/null
+	check_err $? "Failed to read snapshot with id 25 (1 byte)"
+
+	devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len 128 >> /dev/null
+	check_err $? "Failed to read snapshot with id 25 (128 bytes)"
+
+	devlink region read $DL_HANDLE/dummy snapshot 25 addr 128 len $((1<<32)) >> /dev/null
+	check_err $? "Failed to read snapshot with id 25 (oversized)"
+
+	devlink region read $DL_HANDLE/dummy snapshot 25 addr $((1<<32)) len 128 >> /dev/null 2>&1
+	check_fail $? "Bad read of snapshot with id 25 did not fail"
+
+	devlink region del $DL_HANDLE/dummy snapshot 25
+	check_err $? "Failed to delete snapshot with id 25"
+
+	check_region_snapshot_count dummy post-second-delete 2
+
+	sid=$(devlink -j region new $DL_HANDLE/dummy | jq '.[][][][]')
+	check_err $? "Failed to create a new snapshot with id allocated by the kernel"
+
+	check_region_snapshot_count dummy post-first-request 3
+
+	devlink region dump $DL_HANDLE/dummy snapshot $sid >> /dev/null
+	check_err $? "Failed to dump a snapshot with id allocated by the kernel"
+
+	devlink region del $DL_HANDLE/dummy snapshot $sid
+	check_err $? "Failed to delete snapshot with id allocated by the kernel"
+
+	check_region_snapshot_count dummy post-first-request 2
+
+	log_test "regions test"
+}
+
+reload_test()
+{
+	RET=0
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload"
+
+	echo "y"> $DEBUGFS_DIR/fail_reload
+	check_err $? "Failed to setup devlink reload to fail"
+
+	devlink dev reload $DL_HANDLE
+	check_fail $? "Unexpected success of devlink reload"
+
+	echo "n"> $DEBUGFS_DIR/fail_reload
+	check_err $? "Failed to setup devlink reload not to fail"
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload after set not to fail"
+
+	echo "y"> $DEBUGFS_DIR/dont_allow_reload
+	check_err $? "Failed to forbid devlink reload"
+
+	devlink dev reload $DL_HANDLE
+	check_fail $? "Unexpected success of devlink reload"
+
+	echo "n"> $DEBUGFS_DIR/dont_allow_reload
+	check_err $? "Failed to re-enable devlink reload"
+
+	devlink dev reload $DL_HANDLE
+	check_err $? "Failed to reload after re-enable"
+
+	log_test "reload test"
+}
+
+netns_reload_test()
+{
+	RET=0
+
+	ip netns add testns1
+	check_err $? "Failed add netns \"testns1\""
+	ip netns add testns2
+	check_err $? "Failed add netns \"testns2\""
+
+	devlink dev reload $DL_HANDLE netns testns1
+	check_err $? "Failed to reload into netns \"testns1\""
+
+	devlink -N testns1 dev reload $DL_HANDLE netns testns2
+	check_err $? "Failed to reload from netns \"testns1\" into netns \"testns2\""
+
+	ip netns del testns2
+	ip netns del testns1
+
+	# Wait until netns async cleanup is done.
+	devlink_wait 2000
+
+	log_test "netns reload test"
+}
+
+DUMMYDEV="dummytest"
+
+res_val_get()
+{
+	local netns=$1
+	local parentname=$2
+	local name=$3
+	local type=$4
+
+	cmd_jq "devlink -N $netns resource show $DL_HANDLE -j" \
+	       ".[][][] | select(.name == \"$parentname\").resources[] \
+	        | select(.name == \"$name\").$type"
+}
+
+resource_test()
+{
+	RET=0
+
+	ip netns add testns1
+	check_err $? "Failed add netns \"testns1\""
+	ip netns add testns2
+	check_err $? "Failed add netns \"testns2\""
+
+	devlink dev reload $DL_HANDLE netns testns1
+	check_err $? "Failed to reload into netns \"testns1\""
+
+	# Create dummy dev to add the address and routes on.
+
+	ip -n testns1 link add name $DUMMYDEV type dummy
+	check_err $? "Failed create dummy device"
+	ip -n testns1 link set $DUMMYDEV up
+	check_err $? "Failed bring up dummy device"
+	ip -n testns1 a a 192.0.1.1/24 dev $DUMMYDEV
+	check_err $? "Failed add an IP address to dummy device"
+
+	local occ=$(res_val_get testns1 IPv4 fib occ)
+	local limit=$((occ+1))
+
+	# Set fib size limit to handle one another route only.
+
+	devlink -N testns1 resource set $DL_HANDLE path IPv4/fib size $limit
+	check_err $? "Failed to set IPv4/fib resource size"
+	local size_new=$(res_val_get testns1 IPv4 fib size_new)
+	[ "$size_new" -eq "$limit" ]
+	check_err $? "Unexpected \"size_new\" value (got $size_new, expected $limit)"
+
+	devlink -N testns1 dev reload $DL_HANDLE
+	check_err $? "Failed to reload"
+	local size=$(res_val_get testns1 IPv4 fib size)
+	[ "$size" -eq "$limit" ]
+	check_err $? "Unexpected \"size\" value (got $size, expected $limit)"
+
+	# Insert 2 routes, the first is going to be inserted,
+	# the second is expected to fail to be inserted.
+
+	ip -n testns1 r a 192.0.2.0/24 via 192.0.1.2
+	check_err $? "Failed to add route"
+
+	ip -n testns1 r a 192.0.3.0/24 via 192.0.1.2
+	check_fail $? "Unexpected successful route add over limit"
+
+	# Now create another dummy in second network namespace and
+	# insert two routes. That is over the limit of the netdevsim
+	# instance in the first namespace. Move the netdevsim instance
+	# into the second namespace and expect it to fail.
+
+	ip -n testns2 link add name $DUMMYDEV type dummy
+	check_err $? "Failed create dummy device"
+	ip -n testns2 link set $DUMMYDEV up
+	check_err $? "Failed bring up dummy device"
+	ip -n testns2 a a 192.0.1.1/24 dev $DUMMYDEV
+	check_err $? "Failed add an IP address to dummy device"
+	ip -n testns2 r a 192.0.2.0/24 via 192.0.1.2
+	check_err $? "Failed to add route"
+	ip -n testns2 r a 192.0.3.0/24 via 192.0.1.2
+	check_err $? "Failed to add route"
+
+	devlink -N testns1 dev reload $DL_HANDLE netns testns2
+	check_fail $? "Unexpected successful reload from netns \"testns1\" into netns \"testns2\""
+
+	devlink -N testns2 resource set $DL_HANDLE path IPv4/fib size ' -1'
+	check_err $? "Failed to reset IPv4/fib resource size"
+
+	devlink -N testns2 dev reload $DL_HANDLE netns 1
+	check_err $? "Failed to reload devlink back"
+
+	ip netns del testns2
+	ip netns del testns1
+
+	# Wait until netns async cleanup is done.
+	devlink_wait 2000
+
+	log_test "resource test"
+}
+
+info_get()
+{
+	local name=$1
+
+	cmd_jq "devlink dev info $DL_HANDLE -j" ".[][][\"$name\"]" "-e"
+}
+
+dev_info_test()
+{
+	RET=0
+
+	driver=$(info_get "driver")
+	check_err $? "Failed to get driver name"
+	[ "$driver" == "netdevsim" ]
+	check_err $? "Unexpected driver name $driver"
+
+	log_test "dev_info test"
+}
+
+empty_reporter_test()
+{
+	RET=0
+
+	devlink health show $DL_HANDLE reporter empty >/dev/null
+	check_err $? "Failed show empty reporter"
+
+	devlink health dump show $DL_HANDLE reporter empty >/dev/null
+	check_err $? "Failed show dump of empty reporter"
+
+	devlink health diagnose $DL_HANDLE reporter empty >/dev/null
+	check_err $? "Failed diagnose empty reporter"
+
+	devlink health recover $DL_HANDLE reporter empty
+	check_err $? "Failed recover empty reporter"
+
+	log_test "empty reporter test"
+}
+
+check_reporter_info()
+{
+	local name=$1
+	local expected_state=$2
+	local expected_error=$3
+	local expected_recover=$4
+	local expected_grace_period=$5
+	local expected_auto_recover=$6
+
+	local show=$(devlink health show $DL_HANDLE reporter $name -j | jq -e -r ".[][][]")
+	check_err $? "Failed show $name reporter"
+
+	local state=$(echo $show | jq -r ".state")
+	[ "$state" == "$expected_state" ]
+	check_err $? "Unexpected \"state\" value (got $state, expected $expected_state)"
+
+	local error=$(echo $show | jq -r ".error")
+	[ "$error" == "$expected_error" ]
+	check_err $? "Unexpected \"error\" value (got $error, expected $expected_error)"
+
+	local recover=`echo $show | jq -r ".recover"`
+	[ "$recover" == "$expected_recover" ]
+	check_err $? "Unexpected \"recover\" value (got $recover, expected $expected_recover)"
+
+	local grace_period=$(echo $show | jq -r ".grace_period")
+	check_err $? "Failed get $name reporter grace_period"
+	[ "$grace_period" == "$expected_grace_period" ]
+	check_err $? "Unexpected \"grace_period\" value (got $grace_period, expected $expected_grace_period)"
+
+	local auto_recover=$(echo $show | jq -r ".auto_recover")
+	[ "$auto_recover" == "$expected_auto_recover" ]
+	check_err $? "Unexpected \"auto_recover\" value (got $auto_recover, expected $expected_auto_recover)"
+}
+
+dummy_reporter_test()
+{
+	RET=0
+
+	check_reporter_info dummy healthy 0 0 0 true
+
+	devlink health set $DL_HANDLE reporter dummy auto_recover false
+	check_err $? "Failed to dummy reporter auto_recover option"
+
+	check_reporter_info dummy healthy 0 0 0 false
+
+	local BREAK_MSG="foo bar"
+	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
+	check_err $? "Failed to break dummy reporter"
+
+	check_reporter_info dummy error 1 0 0 false
+
+	local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
+	check_err $? "Failed show dump of dummy reporter"
+
+	local dump_break_msg=$(echo $dump | jq -r ".break_message")
+	[ "$dump_break_msg" == "$BREAK_MSG" ]
+	check_err $? "Unexpected dump break message value (got $dump_break_msg, expected $BREAK_MSG)"
+
+	devlink health dump clear $DL_HANDLE reporter dummy
+	check_err $? "Failed clear dump of dummy reporter"
+
+	devlink health recover $DL_HANDLE reporter dummy
+	check_err $? "Failed recover dummy reporter"
+
+	check_reporter_info dummy healthy 1 1 0 false
+
+	devlink health set $DL_HANDLE reporter dummy auto_recover true
+	check_err $? "Failed to dummy reporter auto_recover option"
+
+	check_reporter_info dummy healthy 1 1 0 true
+
+	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
+	check_err $? "Failed to break dummy reporter"
+
+	check_reporter_info dummy healthy 2 2 0 true
+
+	local diagnose=$(devlink health diagnose $DL_HANDLE reporter dummy -j -p)
+	check_err $? "Failed show diagnose of dummy reporter"
+
+	local rcvrd_break_msg=$(echo $diagnose | jq -r ".recovered_break_message")
+	[ "$rcvrd_break_msg" == "$BREAK_MSG" ]
+	check_err $? "Unexpected recovered break message value (got $rcvrd_break_msg, expected $BREAK_MSG)"
+
+	devlink health set $DL_HANDLE reporter dummy grace_period 10
+	check_err $? "Failed to dummy reporter grace_period option"
+
+	check_reporter_info dummy healthy 2 2 10 true
+
+	echo "Y"> $DEBUGFS_DIR/health/fail_recover
+	check_err $? "Failed set dummy reporter recovery to fail"
+
+	echo "$BREAK_MSG"> $DEBUGFS_DIR/health/break_health
+	check_fail $? "Unexpected success of dummy reporter break"
+
+	check_reporter_info dummy error 3 2 10 true
+
+	devlink health recover $DL_HANDLE reporter dummy
+	check_fail $? "Unexpected success of dummy reporter recover"
+
+	echo "N"> $DEBUGFS_DIR/health/fail_recover
+	check_err $? "Failed set dummy reporter recovery to be successful"
+
+	devlink health recover $DL_HANDLE reporter dummy
+	check_err $? "Failed recover dummy reporter"
+
+	check_reporter_info dummy healthy 3 3 10 true
+
+	echo 8192 > $DEBUGFS_DIR/health/binary_len
+	check_err $? "Failed set dummy reporter binary len to 8192"
+
+	local dump=$(devlink health dump show $DL_HANDLE reporter dummy -j)
+	check_err $? "Failed show dump of dummy reporter"
+
+	devlink health dump clear $DL_HANDLE reporter dummy
+	check_err $? "Failed clear dump of dummy reporter"
+
+	log_test "dummy reporter test"
+}
+
+rate_leafs_get()
+{
+	local handle=$1
+
+	cmd_jq "devlink port function rate show -j" \
+	       '.[] | to_entries | .[] | select(.value.type == "leaf") | .key | select(contains("'$handle'"))'
+}
+
+rate_nodes_get()
+{
+	local handle=$1
+
+	cmd_jq "devlink port function rate show -j" \
+		'.[] | to_entries | .[] | select(.value.type == "node") | .key | select(contains("'$handle'"))'
+}
+
+rate_attr_set()
+{
+	local handle=$1
+	local name=$2
+	local value=$3
+	local units=$4
+
+	devlink port function rate set $handle $name $value$units
+}
+
+rate_attr_get()
+{
+	local handle=$1
+	local name=$2
+
+	cmd_jq "devlink port function rate show $handle -j" '.[][].'$name
+}
+
+rate_attr_tx_rate_check()
+{
+	local handle=$1
+	local name=$2
+	local rate=$3
+	local debug_file=$4
+
+	rate_attr_set $handle $name $rate mbit
+	check_err $? "Failed to set $name value"
+
+	local debug_value=$(cat $debug_file)
+	check_err $? "Failed to read $name value from debugfs"
+	[ "$debug_value" == "$rate" ]
+	check_err $? "Unexpected $name debug value $debug_value != $rate"
+
+	local api_value=$(( $(rate_attr_get $handle $name) * 8 / 1000000 ))
+	check_err $? "Failed to get $name attr value"
+	[ "$api_value" == "$rate" ]
+	check_err $? "Unexpected $name attr value $api_value != $rate"
+}
+
+rate_attr_parent_check()
+{
+	local handle=$1
+	local parent=$2
+	local debug_file=$3
+
+	rate_attr_set $handle parent $parent
+	check_err $? "Failed to set parent"
+
+	debug_value=$(cat $debug_file)
+	check_err $? "Failed to get parent debugfs value"
+	[ "$debug_value" == "$parent" ]
+	check_err $? "Unexpected parent debug value $debug_value != $parent"
+
+	api_value=$(rate_attr_get $r_obj parent)
+	check_err $? "Failed to get parent attr value"
+	[ "$api_value" == "$parent" ]
+	check_err $? "Unexpected parent attr value $api_value != $parent"
+}
+
+rate_attr_tc_bw_check()
+{
+	local handle=$1
+	local tc_bw=$2
+	local debug_file=$3
+
+	local tc_bw_str=""
+	for bw in $tc_bw; do
+		local tc=${bw%%:*}
+		local value=${bw##*:}
+		tc_bw_str="$tc_bw_str $tc:$value"
+	done
+	tc_bw_str=${tc_bw_str# }
+
+	rate_attr_set "$handle" tc-bw "$tc_bw_str"
+	check_err $? "Failed to set tc-bw values"
+
+	for bw in $tc_bw; do
+		local tc=${bw%%:*}
+		local value=${bw##*:}
+		local debug_value
+		debug_value=$(cat "$debug_file"/tc"${tc}"_bw)
+		check_err $? "Failed to read tc-bw value from debugfs for tc$tc"
+		[ "$debug_value" == "$value" ]
+		check_err $? "Unexpected tc-bw debug value for tc$tc: $debug_value != $value"
+	done
+
+	for bw in $tc_bw; do
+		local tc=${bw%%:*}
+		local expected_value=${bw##*:}
+		local api_value
+		api_value=$(rate_attr_get "$handle" tc_"$tc")
+		if [ "$api_value" = "null" ]; then
+			api_value=0
+		fi
+		[ "$api_value" == "$expected_value" ]
+		check_err $? "Unexpected tc-bw value for tc$tc: $api_value != $expected_value"
+	done
+}
+
+rate_node_add()
+{
+	local handle=$1
+
+	devlink port function rate add $handle
+}
+
+rate_node_del()
+{
+	local handle=$1
+
+	devlink port function rate del $handle
+}
+
+rate_test()
+{
+	RET=0
+
+	echo $VF_COUNT > /sys/bus/netdevsim/devices/$DEV_NAME/sriov_numvfs
+	devlink dev eswitch set $DL_HANDLE mode switchdev
+	local leafs=`rate_leafs_get $DL_HANDLE`
+	local num_leafs=`echo $leafs | wc -w`
+	[ "$num_leafs" == "$VF_COUNT" ]
+	check_err $? "Expected $VF_COUNT rate leafs but got $num_leafs"
+
+	rate=10
+	for r_obj in $leafs
+	do
+		rate_attr_tx_rate_check $r_obj tx_share $rate \
+			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_share
+		rate=$(($rate+10))
+	done
+
+	rate=100
+	for r_obj in $leafs
+	do
+		rate_attr_tx_rate_check $r_obj tx_max $rate \
+			$DEBUGFS_DIR/ports/${r_obj##*/}/tx_max
+		rate=$(($rate+100))
+	done
+
+	local tc_bw="0:0 1:40 2:0 3:0 4:0 5:0 6:60 7:0"
+	for r_obj in $leafs
+	do
+		rate_attr_tc_bw_check "$r_obj" "$tc_bw" \
+			"$DEBUGFS_DIR"/ports/"${r_obj##*/}"
+	done
+
+	local node1_name='group1'
+	local node1="$DL_HANDLE/$node1_name"
+	rate_node_add "$node1"
+	check_err $? "Failed to add node $node1"
+
+	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
+	[ $num_nodes == 1 ]
+	check_err $? "Expected 1 rate node in output but got $num_nodes"
+
+	local node_tx_share=10
+	rate_attr_tx_rate_check $node1 tx_share $node_tx_share \
+		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_share
+
+	local node_tx_max=100
+	rate_attr_tx_rate_check $node1 tx_max $node_tx_max \
+		$DEBUGFS_DIR/rate_nodes/${node1##*/}/tx_max
+
+
+	local tc_bw="0:20 1:0 2:0 3:0 4:0 5:20 6:60 7:0"
+	rate_attr_tc_bw_check $node1 "$tc_bw" \
+		"$DEBUGFS_DIR"/rate_nodes/"${node1##*/}"
+
+
+	rate_node_del "$node1"
+	check_err $? "Failed to delete node $node1"
+	local num_nodes=`rate_nodes_get $DL_HANDLE | wc -w`
+	[ $num_nodes == 0 ]
+	check_err $? "Expected 0 rate node but got $num_nodes"
+
+	local node1_name='group1'
+	local node1="$DL_HANDLE/$node1_name"
+	rate_node_add "$node1"
+	check_err $? "Failed to add node $node1"
+
+	rate_attr_parent_check $r_obj $node1_name \
+		$DEBUGFS_DIR/ports/${r_obj##*/}/rate_parent
+
+	local node2_name='group2'
+	local node2="$DL_HANDLE/$node2_name"
+	rate_node_add "$node2"
+	check_err $? "Failed to add node $node2"
+
+	rate_attr_parent_check $node2 $node1_name \
+		$DEBUGFS_DIR/rate_nodes/$node2_name/rate_parent
+	rate_node_del "$node2"
+	check_err $? "Failed to delete node $node2"
+	rate_attr_set "$r_obj" noparent
+	check_err $? "Failed to unset $r_obj parent node"
+	rate_node_del "$node1"
+	check_err $? "Failed to delete node $node1"
+
+	log_test "rate test"
+}
+
+setup_prepare()
+{
+	modprobe netdevsim
+	echo "$BUS_ADDR $PORT_COUNT" > /sys/bus/netdevsim/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+}
+
+cleanup()
+{
+	pre_cleanup
+	echo "$BUS_ADDR" > /sys/bus/netdevsim/del_device
+	modprobe -r netdevsim
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink_in_netns.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink_in_netns.sh
new file mode 100755
index 000000000000..7effd35369e1
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink_in_netns.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="check_devlink_test check_ports_test"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+BUS_ADDR=10
+PORT_COUNT=4
+DEV_NAME=netdevsim$BUS_ADDR
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV_NAME/net/
+DL_HANDLE=netdevsim/$DEV_NAME
+NETNS_NAME=testns1
+
+port_netdev_get()
+{
+	local port_index=$1
+
+	cmd_jq "devlink -N $NETNS_NAME port show -j" \
+	       ".[][\"$DL_HANDLE/$port_index\"].netdev" "-e"
+}
+
+check_ports_test()
+{
+	RET=0
+
+	for i in $(seq 0 $(expr $PORT_COUNT - 1)); do
+		netdev_name=$(port_netdev_get $i)
+		check_err $? "Failed to get netdev name for port $DL_HANDLE/$i"
+		ip -n $NETNS_NAME link show $netdev_name &> /dev/null
+		check_err $? "Failed to find netdev $netdev_name"
+	done
+
+	log_test "check ports test"
+}
+
+check_devlink_test()
+{
+	RET=0
+
+	devlink -N $NETNS_NAME dev show $DL_HANDLE &> /dev/null
+	check_err $? "Failed to show devlink instance"
+
+	log_test "check devlink test"
+}
+
+setup_prepare()
+{
+	modprobe netdevsim
+	ip netns add $NETNS_NAME
+	ip netns exec $NETNS_NAME \
+		echo "$BUS_ADDR $PORT_COUNT" > /sys/bus/netdevsim/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+}
+
+cleanup()
+{
+	pre_cleanup
+	echo "$BUS_ADDR" > /sys/bus/netdevsim/del_device
+	ip netns del $NETNS_NAME
+	modprobe -r netdevsim
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
new file mode 100755
index 000000000000..b64d98ca0df7
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh
@@ -0,0 +1,514 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking devlink-trap functionality. It makes use of
+# netdevsim which implements the required callbacks.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	init_test
+	trap_action_test
+	trap_metadata_test
+	bad_trap_test
+	bad_trap_action_test
+	trap_stats_test
+	trap_group_action_test
+	bad_trap_group_test
+	trap_group_stats_test
+	trap_policer_test
+	trap_policer_bind_test
+	port_del_test
+	dev_del_test
+"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
+SLEEP_TIME=1
+NETDEV=""
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
+require_command udevadm
+
+modprobe netdevsim &> /dev/null
+if [ ! -d "$NETDEVSIM_PATH" ]; then
+	echo "SKIP: No netdevsim support"
+	exit 1
+fi
+
+if [ -d "${NETDEVSIM_PATH}/devices/netdevsim${DEV_ADDR}" ]; then
+	echo "SKIP: Device netdevsim${DEV_ADDR} already exists"
+	exit 1
+fi
+
+check_netdev_down()
+{
+	state=$(cat /sys/class/net/${NETDEV}/flags)
+
+	if [ $((state & 1)) -ne 0 ]; then
+		echo "WARNING: unexpected interface UP, disable NetworkManager?"
+
+		ip link set dev $NETDEV down
+	fi
+}
+
+init_test()
+{
+	RET=0
+
+	test $(devlink_traps_num_get) -ne 0
+	check_err $? "No traps were registered"
+
+	log_test "Initialization"
+}
+
+trap_action_test()
+{
+	local orig_action
+	local trap_name
+	local action
+
+	RET=0
+
+	for trap_name in $(devlink_traps_get); do
+		# The action of non-drop traps cannot be changed.
+		if [ $(devlink_trap_type_get $trap_name) = "drop" ]; then
+			devlink_trap_action_set $trap_name "trap"
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != "trap" ]; then
+				check_err 1 "Trap $trap_name did not change action to trap"
+			fi
+
+			devlink_trap_action_set $trap_name "drop"
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != "drop" ]; then
+				check_err 1 "Trap $trap_name did not change action to drop"
+			fi
+		else
+			orig_action=$(devlink_trap_action_get $trap_name)
+
+			devlink_trap_action_set $trap_name "trap"
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != $orig_action ]; then
+				check_err 1 "Trap $trap_name changed action when should not"
+			fi
+
+			devlink_trap_action_set $trap_name "drop"
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != $orig_action ]; then
+				check_err 1 "Trap $trap_name changed action when should not"
+			fi
+		fi
+	done
+
+	log_test "Trap action"
+}
+
+trap_metadata_test()
+{
+	local trap_name
+
+	RET=0
+
+	for trap_name in $(devlink_traps_get); do
+		devlink_trap_metadata_test $trap_name "input_port"
+		check_err $? "Input port not reported as metadata of trap $trap_name"
+		if [ $trap_name == "ingress_flow_action_drop" ] ||
+		   [ $trap_name == "egress_flow_action_drop" ]; then
+			devlink_trap_metadata_test $trap_name "flow_action_cookie"
+			check_err $? "Flow action cookie not reported as metadata of trap $trap_name"
+		fi
+	done
+
+	log_test "Trap metadata"
+}
+
+bad_trap_test()
+{
+	RET=0
+
+	devlink_trap_action_set "made_up_trap" "drop"
+	check_fail $? "Did not get an error for non-existing trap"
+
+	log_test "Non-existing trap"
+}
+
+bad_trap_action_test()
+{
+	local traps_arr
+	local trap_name
+
+	RET=0
+
+	# Pick first trap.
+	traps_arr=($(devlink_traps_get))
+	trap_name=${traps_arr[0]}
+
+	devlink_trap_action_set $trap_name "made_up_action"
+	check_fail $? "Did not get an error for non-existing trap action"
+
+	log_test "Non-existing trap action"
+}
+
+trap_stats_test()
+{
+	local trap_name
+
+	RET=0
+
+	check_netdev_down
+	for trap_name in $(devlink_traps_get); do
+		devlink_trap_stats_idle_test $trap_name
+		check_err $? "Stats of trap $trap_name not idle when netdev down"
+
+		ip link set dev $NETDEV up
+
+		if [ $(devlink_trap_type_get $trap_name) = "drop" ]; then
+			devlink_trap_action_set $trap_name "trap"
+			devlink_trap_stats_idle_test $trap_name
+			check_fail $? "Stats of trap $trap_name idle when action is trap"
+
+			devlink_trap_action_set $trap_name "drop"
+			devlink_trap_stats_idle_test $trap_name
+			check_err $? "Stats of trap $trap_name not idle when action is drop"
+
+			echo "y"> $DEBUGFS_DIR/fail_trap_drop_counter_get
+			devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
+			check_fail $? "Managed to read trap (hard dropped) statistics when should not"
+			echo "n"> $DEBUGFS_DIR/fail_trap_drop_counter_get
+			devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
+			check_err $? "Did not manage to read trap (hard dropped) statistics when should"
+
+			devlink_trap_drop_stats_idle_test $trap_name
+			check_fail $? "Drop stats of trap $trap_name idle when should not"
+		else
+			devlink_trap_stats_idle_test $trap_name
+			check_fail $? "Stats of non-drop trap $trap_name idle when should not"
+		fi
+
+		ip link set dev $NETDEV down
+	done
+
+	log_test "Trap statistics"
+}
+
+trap_group_action_test()
+{
+	local curr_group group_name
+	local trap_name
+	local trap_type
+	local action
+
+	RET=0
+
+	for group_name in $(devlink_trap_groups_get); do
+		devlink_trap_group_action_set $group_name "trap"
+
+		for trap_name in $(devlink_traps_get); do
+			curr_group=$(devlink_trap_group_get $trap_name)
+			if [ $curr_group != $group_name ]; then
+				continue
+			fi
+
+			trap_type=$(devlink_trap_type_get $trap_name)
+			if [ $trap_type != "drop" ]; then
+				continue
+			fi
+
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != "trap" ]; then
+				check_err 1 "Trap $trap_name did not change action to trap"
+			fi
+		done
+
+		devlink_trap_group_action_set $group_name "drop"
+
+		for trap_name in $(devlink_traps_get); do
+			curr_group=$(devlink_trap_group_get $trap_name)
+			if [ $curr_group != $group_name ]; then
+				continue
+			fi
+
+			trap_type=$(devlink_trap_type_get $trap_name)
+			if [ $trap_type != "drop" ]; then
+				continue
+			fi
+
+			action=$(devlink_trap_action_get $trap_name)
+			if [ $action != "drop" ]; then
+				check_err 1 "Trap $trap_name did not change action to drop"
+			fi
+		done
+	done
+
+	log_test "Trap group action"
+}
+
+bad_trap_group_test()
+{
+	RET=0
+
+	devlink_trap_group_action_set "made_up_trap_group" "drop"
+	check_fail $? "Did not get an error for non-existing trap group"
+
+	log_test "Non-existing trap group"
+}
+
+trap_group_stats_test()
+{
+	local group_name
+
+	RET=0
+
+	check_netdev_down
+	for group_name in $(devlink_trap_groups_get); do
+		devlink_trap_group_stats_idle_test $group_name
+		check_err $? "Stats of trap group $group_name not idle when netdev down"
+
+		ip link set dev $NETDEV up
+
+		devlink_trap_group_action_set $group_name "trap"
+		devlink_trap_group_stats_idle_test $group_name
+		check_fail $? "Stats of trap group $group_name idle when action is trap"
+
+		devlink_trap_group_action_set $group_name "drop"
+		ip link set dev $NETDEV down
+	done
+
+	log_test "Trap group statistics"
+}
+
+trap_policer_test()
+{
+	local packets_t0
+	local packets_t1
+
+	RET=0
+
+	if [ $(devlink_trap_policers_num_get) -eq 0 ]; then
+		check_err 1 "Failed to dump policers"
+	fi
+
+	devlink trap policer set $DEVLINK_DEV policer 1337 &> /dev/null
+	check_fail $? "Did not get an error for setting a non-existing policer"
+	devlink trap policer show $DEVLINK_DEV policer 1337 &> /dev/null
+	check_fail $? "Did not get an error for getting a non-existing policer"
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 2000 burst 16
+	check_err $? "Failed to set valid parameters for a valid policer"
+	if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then
+		check_err 1 "Policer rate was not changed"
+	fi
+	if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then
+		check_err 1 "Policer burst size was not changed"
+	fi
+
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 0 &> /dev/null
+	check_fail $? "Policer rate was changed to rate lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 9000 &> /dev/null
+	check_fail $? "Policer rate was changed to rate higher than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 burst 2 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size lower than limit"
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 65537 &> /dev/null
+	check_fail $? "Policer burst size was changed to burst size higher than limit"
+	echo "y" > $DEBUGFS_DIR/fail_trap_policer_set
+	devlink trap policer set $DEVLINK_DEV policer 1 rate 3000 &> /dev/null
+	check_fail $? "Managed to set policer rate when should not"
+	echo "n" > $DEBUGFS_DIR/fail_trap_policer_set
+	if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then
+		check_err 1 "Policer rate was changed to an invalid value"
+	fi
+	if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then
+		check_err 1 "Policer burst size was changed to an invalid value"
+	fi
+
+	packets_t0=$(devlink_trap_policer_rx_dropped_get 1)
+	sleep .5
+	packets_t1=$(devlink_trap_policer_rx_dropped_get 1)
+	if [ ! $packets_t1 -gt $packets_t0 ]; then
+		check_err 1 "Policer drop counter was not incremented"
+	fi
+
+	echo "y"> $DEBUGFS_DIR/fail_trap_policer_counter_get
+	devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null
+	check_fail $? "Managed to read policer drop counter when should not"
+	echo "n"> $DEBUGFS_DIR/fail_trap_policer_counter_get
+	devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null
+	check_err $? "Did not manage to read policer drop counter when should"
+
+	log_test "Trap policer"
+}
+
+trap_group_check_policer()
+{
+	local group_name=$1; shift
+
+	devlink -j -p trap group show $DEVLINK_DEV group $group_name \
+		| jq -e '.[][][]["policer"]' &> /dev/null
+}
+
+trap_policer_bind_test()
+{
+	RET=0
+
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 1
+	check_err $? "Failed to bind a valid policer"
+	if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then
+		check_err 1 "Bound policer was not changed"
+	fi
+
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 1337 \
+		&> /dev/null
+	check_fail $? "Did not get an error for binding a non-existing policer"
+	if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then
+		check_err 1 "Bound policer was changed when should not"
+	fi
+
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 0
+	check_err $? "Failed to unbind a policer when using ID 0"
+	trap_group_check_policer "l2_drops"
+	check_fail $? "Trap group has a policer after unbinding with ID 0"
+
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 1
+	check_err $? "Failed to bind a valid policer"
+
+	devlink trap group set $DEVLINK_DEV group l2_drops nopolicer
+	check_err $? "Failed to unbind a policer when using 'nopolicer' keyword"
+	trap_group_check_policer "l2_drops"
+	check_fail $? "Trap group has a policer after unbinding with 'nopolicer' keyword"
+
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 1
+	check_err $? "Failed to bind a valid policer"
+
+	echo "y"> $DEBUGFS_DIR/fail_trap_group_set
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 2 \
+		&> /dev/null
+	check_fail $? "Managed to bind a policer when should not"
+	echo "n"> $DEBUGFS_DIR/fail_trap_group_set
+	devlink trap group set $DEVLINK_DEV group l2_drops policer 2
+	check_err $? "Did not manage to bind a policer when should"
+
+	devlink trap group set $DEVLINK_DEV group l2_drops action drop \
+		policer 1337 &> /dev/null
+	check_fail $? "Did not get an error for partially modified trap group"
+
+	log_test "Trap policer binding"
+}
+
+port_del_test()
+{
+	local group_name
+	local i
+
+	# The test never fails. It is meant to exercise different code paths
+	# and make sure we properly dismantle a port while packets are
+	# in-flight.
+	RET=0
+
+	devlink_traps_enable_all
+
+	for i in $(seq 1 10); do
+		ip link set dev $NETDEV up
+
+		sleep $SLEEP_TIME
+
+		netdevsim_port_destroy
+		netdevsim_port_create
+		udevadm settle
+	done
+
+	devlink_traps_disable_all
+
+	log_test "Port delete"
+}
+
+dev_del_test()
+{
+	local group_name
+	local i
+
+	# The test never fails. It is meant to exercise different code paths
+	# and make sure we properly unregister traps while packets are
+	# in-flight.
+	RET=0
+
+	devlink_traps_enable_all
+
+	for i in $(seq 1 10); do
+		ip link set dev $NETDEV up
+
+		sleep $SLEEP_TIME
+
+		cleanup
+		setup_prepare
+	done
+
+	devlink_traps_disable_all
+
+	log_test "Device delete"
+}
+
+netdevsim_dev_create()
+{
+	echo "$DEV_ADDR 0" > ${NETDEVSIM_PATH}/new_device
+}
+
+netdevsim_dev_destroy()
+{
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+}
+
+netdevsim_port_create()
+{
+	echo 1 > ${NETDEVSIM_PATH}/devices/${DEV}/new_port
+}
+
+netdevsim_port_destroy()
+{
+	echo 1 > ${NETDEVSIM_PATH}/devices/${DEV}/del_port
+}
+
+setup_prepare()
+{
+	local netdev
+
+	netdevsim_dev_create
+
+	if [ ! -d "${NETDEVSIM_PATH}/devices/${DEV}" ]; then
+		echo "Failed to create netdevsim device"
+		exit 1
+	fi
+
+	netdevsim_port_create
+
+	if [ ! -d "${NETDEVSIM_PATH}/devices/${DEV}/net/" ]; then
+		echo "Failed to create netdevsim port"
+		exit 1
+	fi
+
+	# Wait for udev to rename newly created netdev.
+	udevadm settle
+
+	NETDEV=$(ls ${NETDEVSIM_PATH}/devices/${DEV}/net/)
+}
+
+cleanup()
+{
+	pre_cleanup
+	netdevsim_port_destroy
+	netdevsim_dev_destroy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh
new file mode 100755
index 000000000000..9adfba8f87e6
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-coalesce.sh
@@ -0,0 +1,132 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+function get_value {
+    local query="${SETTINGS_MAP[$1]}"
+
+    echo $(ethtool -c $NSIM_NETDEV | \
+        awk -F':' -v pattern="$query:" '$0 ~ pattern {gsub(/[ \t]/, "", $2); print $2}')
+}
+
+function update_current_settings {
+    for key in ${!SETTINGS_MAP[@]}; do
+        CURRENT_SETTINGS[$key]=$(get_value $key)
+    done
+    echo ${CURRENT_SETTINGS[@]}
+}
+
+if ! ethtool -h | grep -q coalesce; then
+    echo "SKIP: No --coalesce support in ethtool"
+    exit 4
+fi
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+declare -A SETTINGS_MAP=(
+    ["rx-frames-low"]="rx-frame-low"
+    ["tx-frames-low"]="tx-frame-low"
+    ["rx-frames-high"]="rx-frame-high"
+    ["tx-frames-high"]="tx-frame-high"
+    ["rx-usecs"]="rx-usecs"
+    ["rx-frames"]="rx-frames"
+    ["rx-usecs-irq"]="rx-usecs-irq"
+    ["rx-frames-irq"]="rx-frames-irq"
+    ["tx-usecs"]="tx-usecs"
+    ["tx-frames"]="tx-frames"
+    ["tx-usecs-irq"]="tx-usecs-irq"
+    ["tx-frames-irq"]="tx-frames-irq"
+    ["stats-block-usecs"]="stats-block-usecs"
+    ["pkt-rate-low"]="pkt-rate-low"
+    ["rx-usecs-low"]="rx-usecs-low"
+    ["tx-usecs-low"]="tx-usecs-low"
+    ["pkt-rate-high"]="pkt-rate-high"
+    ["rx-usecs-high"]="rx-usecs-high"
+    ["tx-usecs-high"]="tx-usecs-high"
+    ["sample-interval"]="sample-interval"
+)
+
+declare -A CURRENT_SETTINGS=(
+    ["rx-frames-low"]=""
+    ["tx-frames-low"]=""
+    ["rx-frames-high"]=""
+    ["tx-frames-high"]=""
+    ["rx-usecs"]=""
+    ["rx-frames"]=""
+    ["rx-usecs-irq"]=""
+    ["rx-frames-irq"]=""
+    ["tx-usecs"]=""
+    ["tx-frames"]=""
+    ["tx-usecs-irq"]=""
+    ["tx-frames-irq"]=""
+    ["stats-block-usecs"]=""
+    ["pkt-rate-low"]=""
+    ["rx-usecs-low"]=""
+    ["tx-usecs-low"]=""
+    ["pkt-rate-high"]=""
+    ["rx-usecs-high"]=""
+    ["tx-usecs-high"]=""
+    ["sample-interval"]=""
+)
+
+declare -A EXPECTED_SETTINGS=(
+    ["rx-frames-low"]=""
+    ["tx-frames-low"]=""
+    ["rx-frames-high"]=""
+    ["tx-frames-high"]=""
+    ["rx-usecs"]=""
+    ["rx-frames"]=""
+    ["rx-usecs-irq"]=""
+    ["rx-frames-irq"]=""
+    ["tx-usecs"]=""
+    ["tx-frames"]=""
+    ["tx-usecs-irq"]=""
+    ["tx-frames-irq"]=""
+    ["stats-block-usecs"]=""
+    ["pkt-rate-low"]=""
+    ["rx-usecs-low"]=""
+    ["tx-usecs-low"]=""
+    ["pkt-rate-high"]=""
+    ["rx-usecs-high"]=""
+    ["tx-usecs-high"]=""
+    ["sample-interval"]=""
+)
+
+# populate the expected settings map
+for key in ${!SETTINGS_MAP[@]}; do
+    EXPECTED_SETTINGS[$key]=$(get_value $key)
+done
+
+# test
+for key in ${!SETTINGS_MAP[@]}; do
+    value=$((RANDOM % $((2**32-1))))
+
+    ethtool -C $NSIM_NETDEV "$key" "$value"
+
+    EXPECTED_SETTINGS[$key]="$value"
+    expected=${EXPECTED_SETTINGS[@]}
+    current=$(update_current_settings)
+
+    check $? "$current" "$expected"
+    set +x
+done
+
+# bool settings which ethtool displays on the same line
+ethtool -C $NSIM_NETDEV adaptive-rx on
+s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on  TX: off")
+check $? "$s" ""
+
+ethtool -C $NSIM_NETDEV adaptive-tx on
+s=$(ethtool -c $NSIM_NETDEV | grep -q "Adaptive RX: on  TX: on")
+check $? "$s" ""
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
new file mode 100644
index 000000000000..80160579e0cc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-common.sh
@@ -0,0 +1,57 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+NSIM_ID=$((RANDOM % 1024))
+NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
+NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID/ports/0
+NSIM_NETDEV=
+num_passes=0
+num_errors=0
+
+function cleanup_nsim {
+    if [ -e $NSIM_DEV_SYS ]; then
+	echo $NSIM_ID > /sys/bus/netdevsim/del_device
+    fi
+}
+
+function cleanup {
+    cleanup_nsim
+}
+
+trap cleanup EXIT
+
+function check {
+    local code=$1
+    local str=$2
+    local exp_str=$3
+    local exp_fail=$4
+
+    [ -z "$exp_fail" ] && cop="-ne" || cop="-eq"
+
+    if [ $code $cop 0 ]; then
+	((num_errors++))
+	return
+    fi
+
+    if [ "$str" != "$exp_str"  ]; then
+	echo -e "Expected: '$exp_str', got '$str'"
+	((num_errors++))
+	return
+    fi
+
+    ((num_passes++))
+}
+
+function make_netdev {
+    # Make a netdevsim
+    old_netdevs=$(ls /sys/class/net)
+
+    if ! $(lsmod | grep -q netdevsim); then
+	modprobe netdevsim
+    fi
+
+    echo $NSIM_ID $@ > /sys/bus/netdevsim/new_device
+    udevadm settle
+    # get new device name
+    ls /sys/bus/netdevsim/devices/netdevsim${NSIM_ID}/net/
+}
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh
new file mode 100644
index 000000000000..bc210dc6ad2d
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-features.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+FEATS="
+  tx-checksum-ip-generic
+  tx-scatter-gather
+  tx-tcp-segmentation
+  generic-segmentation-offload
+  generic-receive-offload"
+
+for feat in $FEATS ; do
+    s=$(ethtool --json -k $NSIM_NETDEV | jq ".[].\"$feat\".active" 2>/dev/null)
+    check $? "$s" true
+
+    s=$(ethtool --json -k $NSIM_NETDEV | jq ".[].\"$feat\".fixed" 2>/dev/null)
+    check $? "$s" false
+done
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh
new file mode 100755
index 000000000000..6c52ce1b0450
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-fec.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+NSIM_NETDEV=$(make_netdev)
+[ a$ETHTOOL == a ] && ETHTOOL=ethtool
+
+set -o pipefail
+
+# Since commit 2b3ddcb35357 ("ethtool: fec: Change the prompt ...")
+# in ethtool CLI the Configured lines start with Supported/Configured.
+configured=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2 | head -1 | cut -d' ' -f1)
+
+# netdevsim starts out with None/None
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: None
+Active FEC encoding: None"
+
+# Test Auto
+$ETHTOOL --set-fec $NSIM_NETDEV encoding auto
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: Auto
+Active FEC encoding: Off"
+
+# Test case in-sensitivity
+for o in off Off OFF; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: Off
+Active FEC encoding: Off"
+done
+
+for o in BaseR baser BAser; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: BaseR
+Active FEC encoding: BaseR"
+done
+
+for o in llrs rs; do
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding $o
+    check $?
+    s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+    check $? "$s" "$configured FEC encodings: ${o^^}
+Active FEC encoding: ${o^^}"
+done
+
+# Test multiple bits
+$ETHTOOL --set-fec $NSIM_NETDEV encoding rs llrs
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: RS LLRS
+Active FEC encoding: LLRS"
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding rs off auto
+check $?
+s=$($ETHTOOL --show-fec $NSIM_NETDEV | tail -2)
+check $? "$s" "$configured FEC encodings: Auto Off RS
+Active FEC encoding: RS"
+
+# Make sure other link modes are rejected
+$ETHTOOL --set-fec $NSIM_NETDEV encoding FIBRE 2>/dev/null
+check $? '' '' 1
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding bla-bla-bla 2>/dev/null
+check $? '' '' 1
+
+# Try JSON
+$ETHTOOL --json --show-fec $NSIM_NETDEV | jq empty >>/dev/null 2>&1
+if [ $? -eq 0 ]; then
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto
+    check $?
+
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')
+    check $? "$s" '"Auto"'
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')
+    check $? "$s" '"Off"'
+
+    $ETHTOOL --set-fec $NSIM_NETDEV encoding auto RS
+    check $?
+
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].config[]')
+    check $? "$s" '"Auto"
+"RS"'
+    s=$($ETHTOOL --json --show-fec $NSIM_NETDEV | jq '.[].active[]')
+    check $? "$s" '"RS"'
+fi
+
+# Test error injection
+echo 11 > $NSIM_DEV_DFS/ethtool/get_err
+
+$ETHTOOL --show-fec $NSIM_NETDEV >>/dev/null 2>&1
+check $? '' '' 1
+
+echo 0 > $NSIM_DEV_DFS/ethtool/get_err
+echo 11 > $NSIM_DEV_DFS/ethtool/set_err
+
+$ETHTOOL --show-fec $NSIM_NETDEV  >>/dev/null 2>&1
+check $?
+
+$ETHTOOL --set-fec $NSIM_NETDEV encoding RS 2>/dev/null
+check $? '' '' 1
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh
new file mode 100755
index 000000000000..b4a7abfe5454
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/ethtool-pause.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+# Bail if ethtool is too old
+if ! ethtool -h | grep include-stat 2>&1 >/dev/null; then
+    echo "SKIP: No --include-statistics support in ethtool"
+    exit 4
+fi
+
+NSIM_NETDEV=$(make_netdev)
+
+set -o pipefail
+
+echo n > $NSIM_DEV_DFS/ethtool/pause/report_stats_tx
+echo n > $NSIM_DEV_DFS/ethtool/pause/report_stats_rx
+
+s=$(ethtool --json -a $NSIM_NETDEV | jq '.[].statistics')
+check $? "$s" "null"
+
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics')
+check $? "$s" "{}"
+
+echo y > $NSIM_DEV_DFS/ethtool/pause/report_stats_tx
+
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics | length')
+check $? "$s" "1"
+
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.tx_pause_frames')
+check $? "$s" "2"
+
+echo y > $NSIM_DEV_DFS/ethtool/pause/report_stats_rx
+
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics | length')
+check $? "$s" "2"
+
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.rx_pause_frames')
+check $? "$s" "1"
+s=$(ethtool -I --json -a $NSIM_NETDEV | jq '.[].statistics.tx_pause_frames')
+check $? "$s" "2"
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib.sh b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
new file mode 100755
index 000000000000..6800de816e8b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
@@ -0,0 +1,402 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking the FIB offload API. It makes use of netdevsim
+# which registers a listener to the FIB notification chain.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ipv4_identical_routes
+	ipv4_tos
+	ipv4_metric
+	ipv4_replace
+	ipv4_delete
+	ipv4_plen
+	ipv4_replay
+	ipv4_flush
+	ipv4_error_path
+	ipv4_delete_fail
+	ipv6_add
+	ipv6_metric
+	ipv6_append_single
+	ipv6_replace_single
+	ipv6_metric_multipath
+	ipv6_append_multipath
+	ipv6_replace_multipath
+	ipv6_append_multipath_to_single
+	ipv6_delete_single
+	ipv6_delete_multipath
+	ipv6_replay_single
+	ipv6_replay_multipath
+	ipv6_error_path
+	ipv6_delete_fail
+"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+source $lib_dir/fib_offload_lib.sh
+
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
+ipv4_identical_routes()
+{
+	fib_ipv4_identical_routes_test "testns1"
+}
+
+ipv4_tos()
+{
+	fib_ipv4_tos_test "testns1"
+}
+
+ipv4_metric()
+{
+	fib_ipv4_metric_test "testns1"
+}
+
+ipv4_replace()
+{
+	fib_ipv4_replace_test "testns1"
+}
+
+ipv4_delete()
+{
+	fib_ipv4_delete_test "testns1"
+}
+
+ipv4_plen()
+{
+	fib_ipv4_plen_test "testns1"
+}
+
+ipv4_replay_metric()
+{
+	fib_ipv4_replay_metric_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_tos()
+{
+	fib_ipv4_replay_tos_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay_plen()
+{
+	fib_ipv4_replay_plen_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv4_replay()
+{
+	ipv4_replay_metric
+	ipv4_replay_tos
+	ipv4_replay_plen
+}
+
+ipv4_flush()
+{
+	fib_ipv4_flush_test "testns1"
+}
+
+ipv4_error_path_add()
+{
+	local lsb
+
+	RET=0
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
+	devlink -N testns1 dev reload $DEVLINK_DEV
+
+	for lsb in $(seq 1 20); do
+		ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1 \
+			&> /dev/null
+	done
+
+	log_test "IPv4 error path - add"
+
+	ip -n testns1 link del dev dummy1
+}
+
+ipv4_error_path_replay()
+{
+	local lsb
+
+	RET=0
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
+	devlink -N testns1 dev reload $DEVLINK_DEV
+
+	for lsb in $(seq 1 20); do
+		ip -n testns1 route add 192.0.2.${lsb}/32 dev dummy1
+	done
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 10
+	devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
+
+	log_test "IPv4 error path - replay"
+
+	ip -n testns1 link del dev dummy1
+
+	# Successfully reload after deleting all the routes.
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv4/fib size 100
+	devlink -N testns1 dev reload $DEVLINK_DEV
+}
+
+ipv4_error_path()
+{
+	# Test the different error paths of the notifiers by limiting the size
+	# of the "IPv4/fib" resource.
+	ipv4_error_path_add
+	ipv4_error_path_replay
+}
+
+ipv4_delete_fail()
+{
+	RET=0
+
+	echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	ip -n testns1 route add 192.0.2.0/24 dev dummy1
+	ip -n testns1 route del 192.0.2.0/24 dev dummy1 &> /dev/null
+
+	# We should not be able to delete the netdev if we are leaking a
+	# reference.
+	ip -n testns1 link del dev dummy1
+
+	log_test "IPv4 route delete failure"
+
+	echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
+}
+
+ipv6_add()
+{
+	fib_ipv6_add_test "testns1"
+}
+
+ipv6_metric()
+{
+	fib_ipv6_metric_test "testns1"
+}
+
+ipv6_append_single()
+{
+	fib_ipv6_append_single_test "testns1"
+}
+
+ipv6_replace_single()
+{
+	fib_ipv6_replace_single_test "testns1"
+}
+
+ipv6_metric_multipath()
+{
+	fib_ipv6_metric_multipath_test "testns1"
+}
+
+ipv6_append_multipath()
+{
+	fib_ipv6_append_multipath_test "testns1"
+}
+
+ipv6_replace_multipath()
+{
+	fib_ipv6_replace_multipath_test "testns1"
+}
+
+ipv6_append_multipath_to_single()
+{
+	fib_ipv6_append_multipath_to_single_test "testns1"
+}
+
+ipv6_delete_single()
+{
+	fib_ipv6_delete_single_test "testns1"
+}
+
+ipv6_delete_multipath()
+{
+	fib_ipv6_delete_multipath_test "testns1"
+}
+
+ipv6_replay_single()
+{
+	fib_ipv6_replay_single_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_replay_multipath()
+{
+	fib_ipv6_replay_multipath_test "testns1" "$DEVLINK_DEV"
+}
+
+ipv6_error_path_add_single()
+{
+	local lsb
+
+	RET=0
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+	devlink -N testns1 dev reload $DEVLINK_DEV
+
+	for lsb in $(seq 1 20); do
+		ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1 \
+			&> /dev/null
+	done
+
+	log_test "IPv6 error path - add single"
+
+	ip -n testns1 link del dev dummy1
+}
+
+ipv6_error_path_add_multipath()
+{
+	local lsb
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n testns1 link add name dummy$i type dummy
+		ip -n testns1 link set dev dummy$i up
+		ip -n testns1 address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+	devlink -N testns1 dev reload $DEVLINK_DEV
+
+	for lsb in $(seq 1 20); do
+		ip -n testns1 route add 2001:db8:10::${lsb}/128 \
+			nexthop via 2001:db8:1::2 dev dummy1 \
+			nexthop via 2001:db8:2::2 dev dummy2 &> /dev/null
+	done
+
+	log_test "IPv6 error path - add multipath"
+
+	for i in $(seq 1 2); do
+		ip -n testns1 link del dev dummy$i
+	done
+}
+
+ipv6_error_path_replay()
+{
+	local lsb
+
+	RET=0
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
+	devlink -N testns1 dev reload $DEVLINK_DEV
+
+	for lsb in $(seq 1 20); do
+		ip -n testns1 route add 2001:db8:1::${lsb}/128 dev dummy1
+	done
+
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 10
+	devlink -N testns1 dev reload $DEVLINK_DEV &> /dev/null
+
+	log_test "IPv6 error path - replay"
+
+	ip -n testns1 link del dev dummy1
+
+	# Successfully reload after deleting all the routes.
+	devlink -N testns1 resource set $DEVLINK_DEV path IPv6/fib size 100
+	devlink -N testns1 dev reload $DEVLINK_DEV
+}
+
+ipv6_error_path()
+{
+	# Test the different error paths of the notifiers by limiting the size
+	# of the "IPv6/fib" resource.
+	ipv6_error_path_add_single
+	ipv6_error_path_add_multipath
+	ipv6_error_path_replay
+}
+
+ipv6_delete_fail()
+{
+	RET=0
+
+	echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	ip -n testns1 route add 2001:db8:1::/64 dev dummy1
+	ip -n testns1 route del 2001:db8:1::/64 dev dummy1 &> /dev/null
+
+	# We should not be able to delete the netdev if we are leaking a
+	# reference.
+	ip -n testns1 link del dev dummy1
+
+	log_test "IPv6 route delete failure"
+
+	echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
+}
+
+fib_notify_on_flag_change_set()
+{
+	local notify=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.ipv4.fib_notify_on_flag_change=$notify
+	ip netns exec testns1 sysctl -qw net.ipv6.fib_notify_on_flag_change=$notify
+
+	log_info "Set fib_notify_on_flag_change to $notify"
+}
+
+setup_prepare()
+{
+	local netdev
+
+	modprobe netdevsim &> /dev/null
+
+	echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+	ip netns add testns1
+	if [ $? -ne 0 ]; then
+		echo "Failed to add netns \"testns1\""
+		exit 1
+	fi
+
+	devlink dev reload $DEVLINK_DEV netns testns1
+	if [ $? -ne 0 ]; then
+		echo "Failed to reload into netns \"testns1\""
+		exit 1
+	fi
+}
+
+cleanup()
+{
+	pre_cleanup
+	ip netns del testns1
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+fib_notify_on_flag_change_set 1
+tests_run
+
+fib_notify_on_flag_change_set 0
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh
new file mode 100755
index 000000000000..9896580c3d85
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib_notifications.sh
@@ -0,0 +1,430 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	ipv4_route_addition_test
+	ipv4_route_deletion_test
+	ipv4_route_replacement_test
+	ipv4_route_offload_failed_test
+	ipv6_route_addition_test
+	ipv6_route_deletion_test
+	ipv6_route_replacement_test
+	ipv6_route_offload_failed_test
+"
+
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEVLINK_DEV=netdevsim/${DEV}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+check_rt_offload_failed()
+{
+	local outfile=$1; shift
+	local line
+
+	# Make sure that the first notification was emitted without
+	# RTM_F_OFFLOAD_FAILED flag and the second with RTM_F_OFFLOAD_FAILED
+	# flag
+	head -n 1 $outfile | grep -q "rt_offload_failed"
+	if [[ $? -eq 0 ]]; then
+		return 1
+	fi
+
+	head -n 2 $outfile | tail -n 1 | grep -q "rt_offload_failed"
+}
+
+check_rt_trap()
+{
+	local outfile=$1; shift
+	local line
+
+	# Make sure that the first notification was emitted without RTM_F_TRAP
+	# flag and the second with RTM_F_TRAP flag
+	head -n 1 $outfile | grep -q "rt_trap"
+	if [[ $? -eq 0 ]]; then
+		return 1
+	fi
+
+	head -n 2 $outfile | tail -n 1 | grep -q "rt_trap"
+}
+
+route_notify_check()
+{
+	local outfile=$1; shift
+	local expected_num_lines=$1; shift
+	local offload_failed=${1:-0}; shift
+
+	# check the monitor results
+	lines=`wc -l $outfile | cut "-d " -f1`
+	test $lines -eq $expected_num_lines
+	check_err $? "$expected_num_lines notifications were expected but $lines were received"
+
+	if [[ $expected_num_lines -eq 1 ]]; then
+		return
+	fi
+
+	if [[ $offload_failed -eq 0 ]]; then
+		check_rt_trap $outfile
+		check_err $? "Wrong RTM_F_TRAP flags in notifications"
+	else
+		check_rt_offload_failed $outfile
+		check_err $? "Wrong RTM_F_OFFLOAD_FAILED flags in notifications"
+	fi
+}
+
+route_addition_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+	local offload_failed=${1:-0}; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route add $route dev dummy1
+	sleep 1
+	kill_process %%
+
+	route_notify_check $outfile $expected_num_notifications $offload_failed
+	rm -f $outfile
+
+	$IP route del $route dev dummy1
+}
+
+ipv4_route_addition_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	# route_addition_check will assign value to RET.
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the programmed route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the programmed
+	# route.
+	notify=2
+	expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv4 route addition"
+}
+
+route_deletion_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+	$IP route add $route dev dummy1
+	sleep 1
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route del $route dev dummy1
+	sleep 1
+	kill_process %%
+
+	route_notify_check $outfile $expected_num_notifications
+	rm -f $outfile
+}
+
+ipv4_route_deletion_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+	local expected_num_notifications=1
+
+	# Make sure a single notification will be emitted for the deleted route,
+	# regardless of fib_notify_on_flag_change value.
+	local notify=0
+	# route_deletion_check will assign value to RET.
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	notify=1
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv4 route deletion"
+}
+
+route_replacement_check()
+{
+	local ip=$1; shift
+	local notify=$1; shift
+	local route=$1; shift
+	local expected_num_notifications=$1; shift
+
+	ip netns exec testns1 sysctl -qw net.$ip.fib_notify_on_flag_change=$notify
+	$IP route add $route dev dummy1
+	sleep 1
+
+	local outfile=$(mktemp)
+
+	$IP monitor route &> $outfile &
+	sleep 1
+	$IP route replace $route dev dummy2
+	sleep 1
+	kill_process %%
+
+	route_notify_check $outfile $expected_num_notifications
+	rm -f $outfile
+
+	$IP route del $route dev dummy2
+}
+
+ipv4_route_replacement_test()
+{
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+
+	$IP link add name dummy2 type dummy
+	$IP link set dev dummy2 up
+
+	# Make sure a single notification will be emitted for the new route.
+	local notify=0
+	local expected_num_notifications=1
+	# route_replacement_check will assign value to RET.
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the new route.
+	notify=2
+	expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	$IP link del name dummy2
+
+	log_test "IPv4 route replacement"
+}
+
+ipv4_route_offload_failed_test()
+{
+
+	RET=0
+
+	local ip="ipv4"
+	local route=192.0.2.0/24
+	local offload_failed=1
+
+	echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload to fail"
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure two notifications will be emitted for the new route.
+	notify=2
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload not to fail"
+
+	log_test "IPv4 route offload failed"
+}
+
+ipv6_route_addition_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the programmed route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the programmed
+	# route.
+	notify=2
+	expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv6 route addition"
+}
+
+ipv6_route_deletion_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+	local expected_num_notifications=1
+
+	# Make sure a single notification will be emitted for the deleted route,
+	# regardless of fib_notify_on_flag_change value.
+	local notify=0
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	notify=1
+	route_deletion_check $ip $notify $route $expected_num_notifications
+
+	log_test "IPv6 route deletion"
+}
+
+ipv6_route_replacement_test()
+{
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+
+	$IP link add name dummy2 type dummy
+	$IP link set dev dummy2 up
+
+	# Make sure a single notification will be emitted for the new route.
+	local notify=0
+	local expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure a single notification will be emitted for the new route.
+	notify=2
+	expected_num_notifications=1
+	route_replacement_check $ip $notify $route $expected_num_notifications
+
+	$IP link del name dummy2
+
+	log_test "IPv6 route replacement"
+}
+
+ipv6_route_offload_failed_test()
+{
+
+	RET=0
+
+	local ip="ipv6"
+	local route=2001:db8:1::/64
+	local offload_failed=1
+
+	echo "y"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload to fail"
+
+	# Make sure a single notification will be emitted for the programmed
+	# route.
+	local notify=0
+	local expected_num_notifications=1
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# Make sure two notifications will be emitted for the new route.
+	notify=1
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	# notify=2 means emit notifications only for failed route installation,
+	# make sure two notifications will be emitted for the new route.
+	notify=2
+	expected_num_notifications=2
+	route_addition_check $ip $notify $route $expected_num_notifications \
+		$offload_failed
+
+	echo "n"> $DEBUGFS_DIR/fib/fail_route_offload
+	check_err $? "Failed to setup route offload not to fail"
+
+	log_test "IPv6 route offload failed"
+}
+
+setup_prepare()
+{
+	modprobe netdevsim &> /dev/null
+	echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+	ip netns add testns1
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to add netns \"testns1\""
+		exit 1
+	fi
+
+	devlink dev reload $DEVLINK_DEV netns testns1
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to reload into netns \"testns1\""
+		exit 1
+	fi
+
+	IP="ip -n testns1"
+
+	$IP link add name dummy1 type dummy
+	$IP link set dev dummy1 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	$IP link del name dummy1
+	ip netns del testns1
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/hw_stats_l3.sh b/tools/testing/selftests/drivers/net/netdevsim/hw_stats_l3.sh
new file mode 100755
index 000000000000..cba5ac08426b
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/hw_stats_l3.sh
@@ -0,0 +1,421 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	l3_reporting_test
+	l3_fail_next_test
+	l3_counter_test
+	l3_rollback_test
+	l3_monitor_test
+"
+
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR_1=1337
+DEV_ADDR_2=1057
+DEV_ADDR_3=5417
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DUMMY_IFINDEX=
+
+DEV_ADDR()
+{
+	local n=$1; shift
+	local var=DEV_ADDR_$n
+
+	echo ${!var}
+}
+
+DEV()
+{
+	echo netdevsim$(DEV_ADDR $1)
+}
+
+DEVLINK_DEV()
+{
+	echo netdevsim/$(DEV $1)
+}
+
+SYSFS_NET_DIR()
+{
+	echo /sys/bus/netdevsim/devices/$(DEV $1)/net/
+}
+
+DEBUGFS_DIR()
+{
+	echo /sys/kernel/debug/netdevsim/$(DEV $1)/
+}
+
+nsim_add()
+{
+	local n=$1; shift
+
+	echo "$(DEV_ADDR $n) 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $(SYSFS_NET_DIR $n) ] ; do :; done
+}
+
+nsim_reload()
+{
+	local n=$1; shift
+	local ns=$1; shift
+
+	devlink dev reload $(DEVLINK_DEV $n) netns $ns
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to reload $(DEV $n) into netns \"testns1\""
+		exit 1
+	fi
+
+}
+
+nsim_del()
+{
+	local n=$1; shift
+
+	echo "$(DEV_ADDR $n)" > ${NETDEVSIM_PATH}/del_device
+}
+
+nsim_hwstats_toggle()
+{
+	local action=$1; shift
+	local instance=$1; shift
+	local netdev=$1; shift
+	local type=$1; shift
+
+	local ifindex=$($IP -j link show dev $netdev | jq '.[].ifindex')
+
+	echo $ifindex > $(DEBUGFS_DIR $instance)/hwstats/$type/$action
+}
+
+nsim_hwstats_enable()
+{
+	nsim_hwstats_toggle enable_ifindex "$@"
+}
+
+nsim_hwstats_disable()
+{
+	nsim_hwstats_toggle disable_ifindex "$@"
+}
+
+nsim_hwstats_fail_next_enable()
+{
+	nsim_hwstats_toggle fail_next_enable "$@"
+}
+
+setup_prepare()
+{
+	modprobe netdevsim &> /dev/null
+	nsim_add 1
+	nsim_add 2
+	nsim_add 3
+
+	ip netns add testns1
+
+	if [ $? -ne 0 ]; then
+		echo "Failed to add netns \"testns1\""
+		exit 1
+	fi
+
+	nsim_reload 1 testns1
+	nsim_reload 2 testns1
+	nsim_reload 3 testns1
+
+	IP="ip -n testns1"
+
+	$IP link add name dummy1 type dummy
+	$IP link set dev dummy1 up
+	DUMMY_IFINDEX=$($IP -j link show dev dummy1 | jq '.[].ifindex')
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	$IP link del name dummy1
+	ip netns del testns1
+	nsim_del 3
+	nsim_del 2
+	nsim_del 1
+	modprobe -r netdevsim &> /dev/null
+}
+
+netdev_hwstats_used()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	$IP -j stats show dev "$netdev" group offload subgroup hw_stats_info |
+	    jq '.[].info.l3_stats.used'
+}
+
+netdev_check_used()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	[[ $(netdev_hwstats_used $netdev $type) == "true" ]]
+}
+
+netdev_check_unused()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	[[ $(netdev_hwstats_used $netdev $type) == "false" ]]
+}
+
+netdev_hwstats_request()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	$IP -j stats show dev "$netdev" group offload subgroup hw_stats_info |
+	    jq ".[].info.${type}_stats.request"
+}
+
+netdev_check_requested()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	[[ $(netdev_hwstats_request $netdev $type) == "true" ]]
+}
+
+netdev_check_unrequested()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+
+	[[ $(netdev_hwstats_request $netdev $type) == "false" ]]
+}
+
+reporting_test()
+{
+	local type=$1; shift
+	local instance=1
+
+	RET=0
+
+	[[ -n $(netdev_hwstats_used dummy1 $type) ]]
+	check_err $? "$type stats not reported"
+
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used before either device or netdevsim request"
+
+	nsim_hwstats_enable $instance dummy1 $type
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used before device request"
+	netdev_check_unrequested dummy1 $type
+	check_err $? "$type stats reported as requested before device request"
+
+	$IP stats set dev dummy1 ${type}_stats on
+	netdev_check_used dummy1 $type
+	check_err $? "$type stats reported as not used after both device and netdevsim request"
+	netdev_check_requested dummy1 $type
+	check_err $? "$type stats reported as not requested after device request"
+
+	nsim_hwstats_disable $instance dummy1 $type
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used after netdevsim request withdrawn"
+
+	nsim_hwstats_enable $instance dummy1 $type
+	netdev_check_used dummy1 $type
+	check_err $? "$type stats reported as not used after netdevsim request reenabled"
+
+	$IP stats set dev dummy1 ${type}_stats off
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used after device request withdrawn"
+	netdev_check_unrequested dummy1 $type
+	check_err $? "$type stats reported as requested after device request withdrawn"
+
+	nsim_hwstats_disable $instance dummy1 $type
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used after both requests withdrawn"
+
+	log_test "Reporting of $type stats usage"
+}
+
+l3_reporting_test()
+{
+	reporting_test l3
+}
+
+__fail_next_test()
+{
+	local instance=$1; shift
+	local type=$1; shift
+
+	RET=0
+
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used before either device or netdevsim request"
+
+	nsim_hwstats_enable $instance dummy1 $type
+	nsim_hwstats_fail_next_enable $instance dummy1 $type
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used before device request"
+	netdev_check_unrequested dummy1 $type
+	check_err $? "$type stats reported as requested before device request"
+
+	$IP stats set dev dummy1 ${type}_stats on 2>/dev/null
+	check_fail $? "$type stats request not bounced as it should have been"
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used after bounce"
+	netdev_check_unrequested dummy1 $type
+	check_err $? "$type stats reported as requested after bounce"
+
+	$IP stats set dev dummy1 ${type}_stats on
+	check_err $? "$type stats request failed when it shouldn't have"
+	netdev_check_used dummy1 $type
+	check_err $? "$type stats reported as not used after both device and netdevsim request"
+	netdev_check_requested dummy1 $type
+	check_err $? "$type stats reported as not requested after device request"
+
+	$IP stats set dev dummy1 ${type}_stats off
+	nsim_hwstats_disable $instance dummy1 $type
+
+	log_test "Injected failure of $type stats enablement (netdevsim #$instance)"
+}
+
+fail_next_test()
+{
+	__fail_next_test 1 "$@"
+	__fail_next_test 2 "$@"
+	__fail_next_test 3 "$@"
+}
+
+l3_fail_next_test()
+{
+	fail_next_test l3
+}
+
+get_hwstat()
+{
+	local netdev=$1; shift
+	local type=$1; shift
+	local selector=$1; shift
+
+	$IP -j stats show dev $netdev group offload subgroup ${type}_stats |
+		  jq ".[0].stats64.${selector}"
+}
+
+counter_test()
+{
+	local type=$1; shift
+	local instance=1
+
+	RET=0
+
+	nsim_hwstats_enable $instance dummy1 $type
+	$IP stats set dev dummy1 ${type}_stats on
+	netdev_check_used dummy1 $type
+	check_err $? "$type stats reported as not used after both device and netdevsim request"
+
+	# Netdevsim counts 10pps on ingress. We should see maybe a couple
+	# packets, unless things take a reeealy long time.
+	local pkts=$(get_hwstat dummy1 l3 rx.packets)
+	((pkts < 10))
+	check_err $? "$type stats show >= 10 packets after first enablement"
+
+	sleep 2.5
+
+	local pkts=$(get_hwstat dummy1 l3 rx.packets)
+	((pkts >= 20))
+	check_err $? "$type stats show < 20 packets after 2.5s passed"
+
+	$IP stats set dev dummy1 ${type}_stats off
+
+	sleep 2
+
+	$IP stats set dev dummy1 ${type}_stats on
+	local pkts=$(get_hwstat dummy1 l3 rx.packets)
+	((pkts < 10))
+	check_err $? "$type stats show >= 10 packets after second enablement"
+
+	$IP stats set dev dummy1 ${type}_stats off
+	nsim_hwstats_fail_next_enable $instance dummy1 $type
+	$IP stats set dev dummy1 ${type}_stats on 2>/dev/null
+	check_fail $? "$type stats request not bounced as it should have been"
+
+	sleep 2
+
+	$IP stats set dev dummy1 ${type}_stats on
+	local pkts=$(get_hwstat dummy1 l3 rx.packets)
+	((pkts < 10))
+	check_err $? "$type stats show >= 10 packets after post-fail enablement"
+
+	$IP stats set dev dummy1 ${type}_stats off
+
+	log_test "Counter values in $type stats"
+}
+
+l3_counter_test()
+{
+	counter_test l3
+}
+
+rollback_test()
+{
+	local type=$1; shift
+
+	RET=0
+
+	nsim_hwstats_enable 1 dummy1 l3
+	nsim_hwstats_enable 2 dummy1 l3
+	nsim_hwstats_enable 3 dummy1 l3
+
+	# The three netdevsim instances are registered in order of their number
+	# one after another. It is reasonable to expect that whatever
+	# notifications take place hit no. 2 in between hitting nos. 1 and 3,
+	# whatever the actual order. This allows us to test that a fail caused
+	# by no. 2 does not leave the system in a partial state, and rolls
+	# everything back.
+
+	nsim_hwstats_fail_next_enable 2 dummy1 l3
+	$IP stats set dev dummy1 ${type}_stats on 2>/dev/null
+	check_fail $? "$type stats request not bounced as it should have been"
+
+	netdev_check_unused dummy1 $type
+	check_err $? "$type stats reported as used after bounce"
+	netdev_check_unrequested dummy1 $type
+	check_err $? "$type stats reported as requested after bounce"
+
+	sleep 2
+
+	$IP stats set dev dummy1 ${type}_stats on
+	check_err $? "$type stats request not upheld as it should have been"
+
+	local pkts=$(get_hwstat dummy1 l3 rx.packets)
+	((pkts < 10))
+	check_err $? "$type stats show $pkts packets after post-fail enablement"
+
+	$IP stats set dev dummy1 ${type}_stats off
+
+	nsim_hwstats_disable 3 dummy1 l3
+	nsim_hwstats_disable 2 dummy1 l3
+	nsim_hwstats_disable 1 dummy1 l3
+
+	log_test "Failure in $type stats enablement rolled back"
+}
+
+l3_rollback_test()
+{
+	rollback_test l3
+}
+
+l3_monitor_test()
+{
+	hw_stats_monitor_test dummy1 l3		   \
+		"nsim_hwstats_enable 1 dummy1 l3"  \
+		"nsim_hwstats_disable 1 dummy1 l3" \
+		"$IP"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh b/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh
new file mode 100755
index 000000000000..98033e6667d2
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/macsec-offload.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+NSIM_NETDEV=$(make_netdev)
+MACSEC_NETDEV=macsec_nsim
+
+set -o pipefail
+
+if ! ethtool -k $NSIM_NETDEV | grep -q 'macsec-hw-offload: on'; then
+    echo "SKIP: netdevsim doesn't support MACsec offload"
+    exit 4
+fi
+
+if ! ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec offload mac 2>/dev/null; then
+    echo "SKIP: couldn't create macsec device"
+    exit 4
+fi
+ip link del $MACSEC_NETDEV
+
+#
+# test macsec offload API
+#
+
+ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}" type macsec port 4 offload mac
+check $?
+
+ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}2" type macsec address "aa:bb:cc:dd:ee:ff" port 5 offload mac
+check $?
+
+ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}3" type macsec sci abbacdde01020304 offload mac
+check $?
+
+ip link add link $NSIM_NETDEV "${MACSEC_NETDEV}4" type macsec port 8 offload mac 2> /dev/null
+check $? '' '' 1
+
+ip macsec add "${MACSEC_NETDEV}" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012
+check $?
+
+ip macsec add "${MACSEC_NETDEV}" rx port 1234 address "1c:ed:de:ad:be:ef"
+check $?
+
+ip macsec add "${MACSEC_NETDEV}" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on \
+    key 00 0123456789abcdef0123456789abcdef
+check $?
+
+ip macsec add "${MACSEC_NETDEV}" rx port 1235 address "1c:ed:de:ad:be:ef" 2> /dev/null
+check $? '' '' 1
+
+# can't disable macsec offload when SAs are configured
+ip link set "${MACSEC_NETDEV}" type macsec offload off 2> /dev/null
+check $? '' '' 1
+
+ip macsec offload "${MACSEC_NETDEV}" off 2> /dev/null
+check $? '' '' 1
+
+# toggle macsec offload via rtnetlink
+ip link set "${MACSEC_NETDEV}2" type macsec offload off
+check $?
+
+ip link set "${MACSEC_NETDEV}2" type macsec offload mac
+check $?
+
+# toggle macsec offload via genetlink
+ip macsec offload "${MACSEC_NETDEV}2" off
+check $?
+
+ip macsec offload "${MACSEC_NETDEV}2" mac
+check $?
+
+for dev in ${MACSEC_NETDEV}{,2,3} ; do
+    ip link del $dev
+    check $?
+done
+
+
+#
+# test ethtool features when toggling offload
+#
+
+ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec offload mac
+TMP_FEATS_ON_1="$(ethtool -k $MACSEC_NETDEV)"
+
+ip link set $MACSEC_NETDEV type macsec offload off
+TMP_FEATS_OFF_1="$(ethtool -k $MACSEC_NETDEV)"
+
+ip link set $MACSEC_NETDEV type macsec offload mac
+TMP_FEATS_ON_2="$(ethtool -k $MACSEC_NETDEV)"
+
+[ "$TMP_FEATS_ON_1" = "$TMP_FEATS_ON_2" ]
+check $?
+
+ip link del $MACSEC_NETDEV
+
+ip link add link $NSIM_NETDEV $MACSEC_NETDEV type macsec
+check $?
+
+TMP_FEATS_OFF_2="$(ethtool -k $MACSEC_NETDEV)"
+[ "$TMP_FEATS_OFF_1" = "$TMP_FEATS_OFF_2" ]
+check $?
+
+ip link set $MACSEC_NETDEV type macsec offload mac
+check $?
+
+TMP_FEATS_ON_3="$(ethtool -k $MACSEC_NETDEV)"
+[ "$TMP_FEATS_ON_1" = "$TMP_FEATS_ON_3" ]
+check $?
+
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
new file mode 100755
index 000000000000..01d0c044a5fc
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/nexthop.sh
@@ -0,0 +1,1058 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking the nexthop offload API. It makes use of netdevsim
+# which registers a listener to the nexthop notification chain.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	nexthop_single_add_test
+	nexthop_single_add_err_test
+	nexthop_group_add_test
+	nexthop_group_add_err_test
+	nexthop_res_group_add_test
+	nexthop_res_group_add_err_test
+	nexthop_group_replace_test
+	nexthop_group_replace_err_test
+	nexthop_res_group_replace_test
+	nexthop_res_group_replace_err_test
+	nexthop_res_group_idle_timer_test
+	nexthop_res_group_idle_timer_del_test
+	nexthop_res_group_increase_idle_timer_test
+	nexthop_res_group_decrease_idle_timer_test
+	nexthop_res_group_unbalanced_timer_test
+	nexthop_res_group_unbalanced_timer_del_test
+	nexthop_res_group_no_unbalanced_timer_test
+	nexthop_res_group_short_unbalanced_timer_test
+	nexthop_res_group_increase_unbalanced_timer_test
+	nexthop_res_group_decrease_unbalanced_timer_test
+	nexthop_res_group_force_migrate_busy_test
+	nexthop_single_replace_test
+	nexthop_single_replace_err_test
+	nexthop_single_in_group_replace_test
+	nexthop_single_in_group_replace_err_test
+	nexthop_single_in_res_group_replace_test
+	nexthop_single_in_res_group_replace_err_test
+	nexthop_single_in_group_delete_test
+	nexthop_single_in_group_delete_err_test
+	nexthop_single_in_res_group_delete_test
+	nexthop_single_in_res_group_delete_err_test
+	nexthop_replay_test
+	nexthop_replay_err_test
+"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+DEBUGFS_NET_DIR=/sys/kernel/debug/netdevsim/$DEV/
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
+nexthop_check()
+{
+	local nharg="$1"; shift
+	local expected="$1"; shift
+
+	out=$($IP nexthop show ${nharg} | sed -e 's/ *$//')
+	if [[ "$out" != "$expected" ]]; then
+		return 1
+	fi
+
+	return 0
+}
+
+nexthop_bucket_nhid_count_check()
+{
+	local group_id=$1; shift
+	local expected
+	local count
+	local nhid
+	local ret
+
+	while (($# > 0)); do
+		nhid=$1; shift
+		expected=$1; shift
+
+		count=$($IP nexthop bucket show id $group_id nhid $nhid |
+			grep "trap" | wc -l)
+		if ((expected != count)); then
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+nexthop_resource_check()
+{
+	local expected_occ=$1; shift
+
+	occ=$($DEVLINK -jp resource show $DEVLINK_DEV \
+		| jq '.[][][] | select(.name=="nexthops") | .["occ"]')
+
+	if [ $expected_occ -ne $occ ]; then
+		return 1
+	fi
+
+	return 0
+}
+
+nexthop_resource_set()
+{
+	local size=$1; shift
+
+	$DEVLINK resource set $DEVLINK_DEV path nexthops size $size
+	$DEVLINK dev reload $DEVLINK_DEV
+}
+
+nexthop_single_add_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry"
+
+	nexthop_resource_check 1
+	check_err $? "Wrong nexthop occupancy"
+
+	$IP nexthop del id 1
+	nexthop_resource_check 0
+	check_err $? "Wrong nexthop occupancy after delete"
+
+	log_test "Single nexthop add and delete"
+}
+
+nexthop_single_add_err_test()
+{
+	RET=0
+
+	nexthop_resource_set 1
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1 &> /dev/null
+	check_fail $? "Nexthop addition succeeded when should fail"
+
+	nexthop_resource_check 1
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop add failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_group_add_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	$IP nexthop add id 10 group 1/2
+	nexthop_check "id 10" "id 10 group 1/2 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_resource_check 4
+	check_err $? "Wrong nexthop occupancy"
+
+	$IP nexthop del id 10
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy after delete"
+
+	$IP nexthop add id 10 group 1,20/2,39
+	nexthop_check "id 10" "id 10 group 1,20/2,39 trap"
+	check_err $? "Unexpected weighted nexthop group entry"
+
+	nexthop_resource_check 61
+	check_err $? "Wrong weighted nexthop occupancy"
+
+	$IP nexthop del id 10
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy after delete"
+
+	log_test "Nexthop group add and delete"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_group_add_err_test()
+{
+	RET=0
+
+	nexthop_resource_set 2
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	$IP nexthop add id 10 group 1/2 &> /dev/null
+	check_fail $? "Nexthop group addition succeeded when should fail"
+
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Nexthop group add failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_res_group_add_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 4
+	nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_bucket_nhid_count_check 10 1 2
+	check_err $? "Wrong nexthop buckets count"
+	nexthop_bucket_nhid_count_check 10 2 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 6
+	check_err $? "Wrong nexthop occupancy"
+
+	$IP nexthop del id 10
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy after delete"
+
+	$IP nexthop add id 10 group 1,3/2,2 type resilient buckets 5
+	nexthop_check "id 10" "id 10 group 1,3/2,2 type resilient buckets 5 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected weighted nexthop group entry"
+
+	nexthop_bucket_nhid_count_check 10 1 3
+	check_err $? "Wrong nexthop buckets count"
+	nexthop_bucket_nhid_count_check 10 2 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 7
+	check_err $? "Wrong weighted nexthop occupancy"
+
+	$IP nexthop del id 10
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy after delete"
+
+	log_test "Resilient nexthop group add and delete"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_add_err_test()
+{
+	RET=0
+
+	nexthop_resource_set 2
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 4 &> /dev/null
+	check_fail $? "Nexthop group addition succeeded when should fail"
+
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Resilient nexthop group add failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_group_replace_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$IP nexthop replace id 10 group 1/2/3
+	nexthop_check "id 10" "id 10 group 1/2/3 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_resource_check 6
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Nexthop group replace"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_group_replace_err_test()
+{
+	RET=0
+
+	nexthop_resource_set 5
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$IP nexthop replace id 10 group 1/2/3 &> /dev/null
+	check_fail $? "Nexthop group replacement succeeded when should fail"
+
+	nexthop_check "id 10" "id 10 group 1/2 trap"
+	check_err $? "Unexpected nexthop group entry after failure"
+
+	nexthop_resource_check 5
+	check_err $? "Wrong nexthop occupancy after failure"
+
+	log_test "Nexthop group replace failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_res_group_replace_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2 type resilient buckets 6
+
+	$IP nexthop replace id 10 group 1/2/3 type resilient
+	nexthop_check "id 10" "id 10 group 1/2/3 type resilient buckets 6 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_bucket_nhid_count_check 10 1 2
+	check_err $? "Wrong nexthop buckets count"
+	nexthop_bucket_nhid_count_check 10 2 2
+	check_err $? "Wrong nexthop buckets count"
+	nexthop_bucket_nhid_count_check 10 3 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 9
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Resilient nexthop group replace"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_replace_err_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2 type resilient buckets 6
+
+	ip netns exec testns1 \
+		echo 1 > $DEBUGFS_NET_DIR/fib/fail_res_nexthop_group_replace
+	$IP nexthop replace id 10 group 1/2/3 type resilient &> /dev/null
+	check_fail $? "Nexthop group replacement succeeded when should fail"
+
+	nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 6 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry after failure"
+
+	nexthop_bucket_nhid_count_check 10 1 3
+	check_err $? "Wrong nexthop buckets count"
+	nexthop_bucket_nhid_count_check 10 2 3
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 9
+	check_err $? "Wrong nexthop occupancy after failure"
+
+	log_test "Resilient nexthop group replace failure"
+
+	$IP nexthop flush &> /dev/null
+	ip netns exec testns1 \
+		echo 0 > $DEBUGFS_NET_DIR/fib/fail_res_nexthop_group_replace
+}
+
+nexthop_res_mark_buckets_busy()
+{
+	local group_id=$1; shift
+	local nhid=$1; shift
+	local count=$1; shift
+	local index
+
+	for index in $($IP -j nexthop bucket show id $group_id nhid $nhid |
+		       jq '.[].bucket.index' | head -n ${count:--0})
+	do
+		echo $group_id $index \
+			> $DEBUGFS_NET_DIR/fib/nexthop_bucket_activity
+	done
+}
+
+nexthop_res_num_nhid_buckets()
+{
+	local group_id=$1; shift
+	local nhid=$1; shift
+
+	$IP -j nexthop bucket show id $group_id nhid $nhid | jq length
+}
+
+nexthop_res_group_idle_timer_test()
+{
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 8 idle_timer 4
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	nexthop_bucket_nhid_count_check 10  1 4  2 4
+	check_err $? "Group expected to be unbalanced"
+
+	sleep 6
+
+	nexthop_bucket_nhid_count_check 10  1 2  2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after idle timer"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_idle_timer_del_test()
+{
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1,50/2,50/3,1 \
+	    type resilient buckets 8 idle_timer 6
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1,50/2,150/3,1 type resilient
+
+	nexthop_bucket_nhid_count_check 10  1 4  2 4  3 0
+	check_err $? "Group expected to be unbalanced"
+
+	sleep 4
+
+	# Deletion prompts group replacement. Check that the bucket timers
+	# are kept.
+	$IP nexthop delete id 3
+
+	nexthop_bucket_nhid_count_check 10  1 4  2 4
+	check_err $? "Group expected to still be unbalanced"
+
+	sleep 4
+
+	nexthop_bucket_nhid_count_check 10  1 2  2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after idle timer (with delete)"
+
+	$IP nexthop flush &> /dev/null
+}
+
+__nexthop_res_group_increase_timer_test()
+{
+	local timer=$1; shift
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 8 $timer 4
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group expected to be unbalanced"
+
+	sleep 2
+	$IP nexthop replace id 10 group 1/2,3 type resilient $timer 8
+	sleep 4
+
+	# 6 seconds, past the original timer.
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group still expected to be unbalanced"
+
+	sleep 4
+
+	# 10 seconds, past the new timer.
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after $timer increase"
+
+	$IP nexthop flush &> /dev/null
+}
+
+__nexthop_res_group_decrease_timer_test()
+{
+	local timer=$1; shift
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 8 $timer 8
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group expected to be unbalanced"
+
+	sleep 2
+	$IP nexthop replace id 10 group 1/2,3 type resilient $timer 4
+	sleep 4
+
+	# 6 seconds, past the new timer, before the old timer.
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after $timer decrease"
+
+	$IP nexthop flush &> /dev/null
+}
+
+__nexthop_res_group_increase_timer_del_test()
+{
+	local timer=$1; shift
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1,100/2,100/3,1 \
+	    type resilient buckets 8 $timer 4
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1,100/2,300/3,1 type resilient
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group expected to be unbalanced"
+
+	sleep 2
+	$IP nexthop replace id 10 group 1/2,3 type resilient $timer 8
+	sleep 4
+
+	# 6 seconds, past the original timer.
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group still expected to be unbalanced"
+
+	sleep 4
+
+	# 10 seconds, past the new timer.
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after $timer increase"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_increase_idle_timer_test()
+{
+	__nexthop_res_group_increase_timer_test idle_timer
+}
+
+nexthop_res_group_decrease_idle_timer_test()
+{
+	__nexthop_res_group_decrease_timer_test idle_timer
+}
+
+nexthop_res_group_unbalanced_timer_test()
+{
+	local i
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient \
+	    buckets 8 idle_timer 6 unbalanced_timer 10
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	for i in 1 2; do
+		sleep 4
+		nexthop_bucket_nhid_count_check 10  1 4  2 4
+		check_err $? "$i: Group expected to be unbalanced"
+		nexthop_res_mark_buckets_busy 10 1
+	done
+
+	# 3 x sleep 4 > unbalanced timer 10
+	sleep 4
+	nexthop_bucket_nhid_count_check 10  1 2  2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after unbalanced timer"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_unbalanced_timer_del_test()
+{
+	local i
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1,50/2,50/3,1 type resilient \
+	    buckets 8 idle_timer 6 unbalanced_timer 10
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1,50/2,150/3,1 type resilient
+
+	# Check that NH delete does not reset unbalanced time.
+	sleep 4
+	$IP nexthop delete id 3
+	nexthop_bucket_nhid_count_check 10  1 4  2 4
+	check_err $? "1: Group expected to be unbalanced"
+	nexthop_res_mark_buckets_busy 10 1
+
+	sleep 4
+	nexthop_bucket_nhid_count_check 10  1 4  2 4
+	check_err $? "2: Group expected to be unbalanced"
+	nexthop_res_mark_buckets_busy 10 1
+
+	# 3 x sleep 4 > unbalanced timer 10
+	sleep 4
+	nexthop_bucket_nhid_count_check 10  1 2  2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after unbalanced timer (with delete)"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_no_unbalanced_timer_test()
+{
+	local i
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient buckets 8
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	for i in $(seq 3); do
+		sleep 60
+		nexthop_bucket_nhid_count_check 10 2 6
+		check_fail $? "$i: Group expected to be unbalanced"
+		nexthop_res_mark_buckets_busy 10 1
+	done
+
+	log_test "Buckets never force-migrated without unbalanced timer"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_short_unbalanced_timer_test()
+{
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient \
+	    buckets 8 idle_timer 120 unbalanced_timer 4
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group expected to be unbalanced"
+
+	sleep 5
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_err $? "Group expected to be balanced"
+
+	log_test "Bucket migration after unbalanced < idle timer"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_res_group_increase_unbalanced_timer_test()
+{
+	__nexthop_res_group_increase_timer_test unbalanced_timer
+}
+
+nexthop_res_group_decrease_unbalanced_timer_test()
+{
+	__nexthop_res_group_decrease_timer_test unbalanced_timer
+}
+
+nexthop_res_group_force_migrate_busy_test()
+{
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+
+	RET=0
+
+	$IP nexthop add id 10 group 1/2 type resilient \
+	    buckets 8 idle_timer 120
+	nexthop_res_mark_buckets_busy 10 1
+	$IP nexthop replace id 10 group 1/2,3 type resilient
+
+	nexthop_bucket_nhid_count_check 10 2 6
+	check_fail $? "Group expected to be unbalanced"
+
+	$IP nexthop replace id 10 group 2 type resilient
+	nexthop_bucket_nhid_count_check 10 2 8
+	check_err $? "All buckets expected to have migrated"
+
+	log_test "Busy buckets force-migrated when NH removed"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_replace_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+
+	$IP nexthop replace id 1 via 192.0.2.3 dev dummy1
+	nexthop_check "id 1" "id 1 via 192.0.2.3 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry"
+
+	nexthop_resource_check 1
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop replace"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_replace_err_test()
+{
+	RET=0
+
+	# This is supposed to cause the replace to fail because the new nexthop
+	# is programmed before deleting the replaced one.
+	nexthop_resource_set 1
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+
+	$IP nexthop replace id 1 via 192.0.2.3 dev dummy1 &> /dev/null
+	check_fail $? "Nexthop replace succeeded when should fail"
+
+	nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry after failure"
+
+	nexthop_resource_check 1
+	check_err $? "Wrong nexthop occupancy after failure"
+
+	log_test "Single nexthop replace failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_single_in_group_replace_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$IP nexthop replace id 1 via 192.0.2.4 dev dummy1
+	check_err $? "Failed to replace nexthop when should not"
+
+	nexthop_check "id 10" "id 10 group 1/2 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_resource_check 4
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop replace while in group"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_in_group_replace_err_test()
+{
+	RET=0
+
+	nexthop_resource_set 5
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$IP nexthop replace id 1 via 192.0.2.4 dev dummy1 &> /dev/null
+	check_fail $? "Nexthop replacement succeeded when should fail"
+
+	nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry after failure"
+
+	nexthop_check "id 10" "id 10 group 1/2 trap"
+	check_err $? "Unexpected nexthop group entry after failure"
+
+	nexthop_resource_check 4
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop replace while in group failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_single_in_res_group_replace_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2 type resilient buckets 4
+
+	$IP nexthop replace id 1 via 192.0.2.4 dev dummy1
+	check_err $? "Failed to replace nexthop when should not"
+
+	nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_bucket_nhid_count_check 10  1 2  2 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 6
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop replace while in resilient group"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_in_res_group_replace_err_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2 type resilient buckets 4
+
+	ip netns exec testns1 \
+		echo 1 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
+	$IP nexthop replace id 1 via 192.0.2.4 dev dummy1 &> /dev/null
+	check_fail $? "Nexthop replacement succeeded when should fail"
+
+	nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry after failure"
+
+	nexthop_check "id 10" "id 10 group 1/2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry after failure"
+
+	nexthop_bucket_nhid_count_check 10  1 2  2 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 6
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop replace while in resilient group failure"
+
+	$IP nexthop flush &> /dev/null
+	ip netns exec testns1 \
+		echo 0 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
+}
+
+nexthop_single_in_group_delete_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$IP nexthop del id 1
+	nexthop_check "id 10" "id 10 group 2 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_resource_check 2
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop delete while in group"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_in_group_delete_err_test()
+{
+	RET=0
+
+	# First, nexthop 1 will be deleted, which will reduce the occupancy to
+	# 5. Afterwards, a replace notification will be sent for nexthop group
+	# 10 with only two nexthops. Since the new group is allocated before
+	# the old is deleted, the replacement will fail as it will result in an
+	# occupancy of 7.
+	nexthop_resource_set 6
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2/3
+
+	$IP nexthop del id 1
+
+	nexthop_resource_check 5
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop delete while in group failure"
+
+	$IP nexthop flush &> /dev/null
+	nexthop_resource_set 9999
+}
+
+nexthop_single_in_res_group_delete_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2 type resilient buckets 4
+
+	$IP nexthop del id 1
+	nexthop_check "id 10" "id 10 group 2 type resilient buckets 4 idle_timer 120 unbalanced_timer 0 unbalanced_time 0 trap"
+	check_err $? "Unexpected nexthop group entry"
+
+	nexthop_bucket_nhid_count_check 10 2 4
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 5
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop delete while in resilient group"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_single_in_res_group_delete_err_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 3 via 192.0.2.4 dev dummy1
+	$IP nexthop add id 10 group 1/2/3 type resilient buckets 6
+
+	ip netns exec testns1 \
+		echo 1 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
+	$IP nexthop del id 1
+
+	# We failed to replace the two nexthop buckets that were originally
+	# assigned to nhid 1.
+	nexthop_bucket_nhid_count_check 10  2 2  3 2
+	check_err $? "Wrong nexthop buckets count"
+
+	nexthop_resource_check 8
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Single nexthop delete while in resilient group failure"
+
+	$IP nexthop flush &> /dev/null
+	ip netns exec testns1 \
+		echo 0 > $DEBUGFS_NET_DIR/fib/fail_nexthop_bucket_replace
+}
+
+nexthop_replay_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	$DEVLINK dev reload $DEVLINK_DEV
+	check_err $? "Failed to reload when should not"
+
+	nexthop_check "id 1" "id 1 via 192.0.2.2 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry after reload"
+
+	nexthop_check "id 2" "id 2 via 192.0.2.3 dev dummy1 scope link trap"
+	check_err $? "Unexpected nexthop entry after reload"
+
+	nexthop_check "id 10" "id 10 group 1/2 trap"
+	check_err $? "Unexpected nexthop group entry after reload"
+
+	nexthop_resource_check 4
+	check_err $? "Wrong nexthop occupancy"
+
+	log_test "Nexthop replay"
+
+	$IP nexthop flush &> /dev/null
+}
+
+nexthop_replay_err_test()
+{
+	RET=0
+
+	$IP nexthop add id 1 via 192.0.2.2 dev dummy1
+	$IP nexthop add id 2 via 192.0.2.3 dev dummy1
+	$IP nexthop add id 10 group 1/2
+
+	# Reduce size of nexthop resource so that reload will fail.
+	$DEVLINK resource set $DEVLINK_DEV path nexthops size 3
+	$DEVLINK dev reload $DEVLINK_DEV &> /dev/null
+	check_fail $? "Reload succeeded when should fail"
+
+	$DEVLINK resource set $DEVLINK_DEV path nexthops size 9999
+	$DEVLINK dev reload $DEVLINK_DEV
+	check_err $? "Failed to reload when should not"
+
+	log_test "Nexthop replay failure"
+
+	$IP nexthop flush &> /dev/null
+}
+
+setup_prepare()
+{
+	local netdev
+
+	modprobe netdevsim &> /dev/null
+
+	echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+	set -e
+
+	ip netns add testns1
+	devlink dev reload $DEVLINK_DEV netns testns1
+
+	IP="ip -netns testns1"
+	DEVLINK="devlink -N testns1"
+
+	$IP link add name dummy1 up type dummy
+	$IP address add 192.0.2.1/24 dev dummy1
+
+	set +e
+}
+
+cleanup()
+{
+	pre_cleanup
+	ip netns del testns1
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+xfail_on_slow tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/peer.sh b/tools/testing/selftests/drivers/net/netdevsim/peer.sh
new file mode 100755
index 000000000000..7f32b5600925
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/peer.sh
@@ -0,0 +1,144 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+lib_dir=$(dirname $0)/../../../net
+source $lib_dir/lib.sh
+
+NSIM_DEV_1_ID=$((256 + RANDOM % 256))
+NSIM_DEV_1_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_1_ID
+NSIM_DEV_2_ID=$((512 + RANDOM % 256))
+NSIM_DEV_2_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_DEV_2_ID
+
+NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
+NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
+NSIM_DEV_SYS_LINK=/sys/bus/netdevsim/link_device
+NSIM_DEV_SYS_UNLINK=/sys/bus/netdevsim/unlink_device
+
+socat_check()
+{
+	if [ ! -x "$(command -v socat)" ]; then
+		echo "socat command not found. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+setup_ns()
+{
+	set -e
+	ip netns add nssv
+	ip netns add nscl
+
+	NSIM_DEV_1_NAME=$(find $NSIM_DEV_1_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_DEV_1_SYS/net -exec basename {} \;)
+	NSIM_DEV_2_NAME=$(find $NSIM_DEV_2_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_DEV_2_SYS/net -exec basename {} \;)
+
+	ip link set $NSIM_DEV_1_NAME netns nssv
+	ip link set $NSIM_DEV_2_NAME netns nscl
+
+	ip netns exec nssv ip addr add '192.168.1.1/24' dev $NSIM_DEV_1_NAME
+	ip netns exec nscl ip addr add '192.168.1.2/24' dev $NSIM_DEV_2_NAME
+
+	ip netns exec nssv ip link set dev $NSIM_DEV_1_NAME up
+	ip netns exec nscl ip link set dev $NSIM_DEV_2_NAME up
+	set +e
+}
+
+cleanup_ns()
+{
+	ip netns del nscl
+	ip netns del nssv
+}
+
+###
+### Code start
+###
+
+socat_check || exit 4
+
+modprobe netdevsim
+
+# linking
+
+echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_NEW
+echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_NEW
+udevadm settle
+
+setup_ns
+
+NSIM_DEV_1_FD=$((256 + RANDOM % 256))
+exec {NSIM_DEV_1_FD}</var/run/netns/nssv
+NSIM_DEV_1_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_DEV_1_NAME/ifindex)
+
+NSIM_DEV_2_FD=$((256 + RANDOM % 256))
+exec {NSIM_DEV_2_FD}</var/run/netns/nscl
+NSIM_DEV_2_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_DEV_2_NAME/ifindex)
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:2000" > $NSIM_DEV_SYS_LINK 2>/dev/null
+if [ $? -eq 0 ]; then
+	echo "linking with non-existent netdevsim should fail"
+	cleanup_ns
+	exit 1
+fi
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX 2000:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
+if [ $? -eq 0 ]; then
+	echo "linking with non-existent netnsid should fail"
+	cleanup_ns
+	exit 1
+fi
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_LINK 2>/dev/null
+if [ $? -eq 0 ]; then
+	echo "linking with self should fail"
+	cleanup_ns
+	exit 1
+fi
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:$NSIM_DEV_2_IFIDX" > $NSIM_DEV_SYS_LINK
+if [ $? -ne 0 ]; then
+	echo "linking netdevsim1 with netdevsim2 should succeed"
+	cleanup_ns
+	exit 1
+fi
+
+# argument error checking
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX $NSIM_DEV_2_FD:a" > $NSIM_DEV_SYS_LINK 2>/dev/null
+if [ $? -eq 0 ]; then
+	echo "invalid arg should fail"
+	cleanup_ns
+	exit 1
+fi
+
+# send/recv packets
+
+tmp_file=$(mktemp)
+ip netns exec nssv socat TCP-LISTEN:1234,fork $tmp_file &
+pid=$!
+res=0
+
+wait_local_port_listen nssv 1234 tcp
+
+echo "HI" | ip netns exec nscl socat STDIN TCP:192.168.1.1:1234
+
+count=$(cat $tmp_file | wc -c)
+if [[ $count -ne 3 ]]; then
+	echo "expected 3 bytes, got $count"
+	res=1
+fi
+
+echo "$NSIM_DEV_1_FD:$NSIM_DEV_1_IFIDX" > $NSIM_DEV_SYS_UNLINK
+
+echo $NSIM_DEV_2_ID > $NSIM_DEV_SYS_DEL
+
+kill $pid
+echo $NSIM_DEV_1_ID > $NSIM_DEV_SYS_DEL
+
+cleanup_ns
+
+modprobe -r netdevsim
+
+exit $res
diff --git a/tools/testing/selftests/drivers/net/netdevsim/psample.sh b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
new file mode 100755
index 000000000000..e689ff7a0b12
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/psample.sh
@@ -0,0 +1,183 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking the psample module. It makes use of netdevsim
+# which periodically generates "sampled" packets.
+
+lib_dir=$(dirname $0)/../../../net/forwarding
+
+ALL_TESTS="
+	psample_enable_test
+	psample_group_num_test
+	psample_md_test
+"
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+PSAMPLE_DIR=/sys/kernel/debug/netdevsim/$DEV/psample/
+CAPTURE_FILE=$(mktemp)
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DEVLINK_DEV=
+source $lib_dir/devlink_lib.sh
+DEVLINK_DEV=netdevsim/${DEV}
+
+# Available at https://github.com/Mellanox/libpsample
+require_command psample
+
+psample_capture()
+{
+	rm -f $CAPTURE_FILE
+
+	timeout 2 ip netns exec testns1 psample &> $CAPTURE_FILE
+}
+
+psample_enable_test()
+{
+	RET=0
+
+	echo 1 > $PSAMPLE_DIR/enable
+	check_err $? "Failed to enable sampling when should not"
+
+	echo 1 > $PSAMPLE_DIR/enable 2>/dev/null
+	check_fail $? "Sampling enablement succeeded when should fail"
+
+	psample_capture
+	if [ $(cat $CAPTURE_FILE | wc -l) -eq 0 ]; then
+		check_err 1 "Failed to capture sampled packets"
+	fi
+
+	echo 0 > $PSAMPLE_DIR/enable
+	check_err $? "Failed to disable sampling when should not"
+
+	echo 0 > $PSAMPLE_DIR/enable 2>/dev/null
+	check_fail $? "Sampling disablement succeeded when should fail"
+
+	psample_capture
+	if [ $(cat $CAPTURE_FILE | wc -l) -ne 0 ]; then
+		check_err 1 "Captured sampled packets when should not"
+	fi
+
+	log_test "psample enable / disable"
+}
+
+psample_group_num_test()
+{
+	RET=0
+
+	echo 1234 > $PSAMPLE_DIR/group_num
+	echo 1 > $PSAMPLE_DIR/enable
+
+	psample_capture
+	grep -q -e "group 1234" $CAPTURE_FILE
+	check_err $? "Sampled packets reported with wrong group number"
+
+	# New group number should only be used after disable / enable.
+	echo 4321 > $PSAMPLE_DIR/group_num
+
+	psample_capture
+	grep -q -e "group 4321" $CAPTURE_FILE
+	check_fail $? "Group number changed while sampling is active"
+
+	echo 0 > $PSAMPLE_DIR/enable && echo 1 > $PSAMPLE_DIR/enable
+
+	psample_capture
+	grep -q -e "group 4321" $CAPTURE_FILE
+	check_err $? "Group number did not change after restarting sampling"
+
+	log_test "psample group number"
+
+	echo 0 > $PSAMPLE_DIR/enable
+}
+
+psample_md_test()
+{
+	RET=0
+
+	echo 1 > $PSAMPLE_DIR/enable
+
+	echo 1234 > $PSAMPLE_DIR/in_ifindex
+	echo 4321 > $PSAMPLE_DIR/out_ifindex
+	psample_capture
+
+	grep -q -e "in-ifindex 1234" $CAPTURE_FILE
+	check_err $? "Sampled packets reported with wrong in-ifindex"
+
+	grep -q -e "out-ifindex 4321" $CAPTURE_FILE
+	check_err $? "Sampled packets reported with wrong out-ifindex"
+
+	echo 5 > $PSAMPLE_DIR/out_tc
+	psample_capture
+
+	grep -q -e "out-tc 5" $CAPTURE_FILE
+	check_err $? "Sampled packets reported with wrong out-tc"
+
+	echo $((2**16 - 1)) > $PSAMPLE_DIR/out_tc
+	psample_capture
+
+	grep -q -e "out-tc " $CAPTURE_FILE
+	check_fail $? "Sampled packets reported with out-tc when should not"
+
+	echo 1 > $PSAMPLE_DIR/out_tc
+	echo 10000 > $PSAMPLE_DIR/out_tc_occ_max
+	psample_capture
+
+	grep -q -e "out-tc-occ " $CAPTURE_FILE
+	check_err $? "Sampled packets not reported with out-tc-occ when should"
+
+	echo 0 > $PSAMPLE_DIR/out_tc_occ_max
+	psample_capture
+
+	grep -q -e "out-tc-occ " $CAPTURE_FILE
+	check_fail $? "Sampled packets reported with out-tc-occ when should not"
+
+	echo 10000 > $PSAMPLE_DIR/latency_max
+	psample_capture
+
+	grep -q -e "latency " $CAPTURE_FILE
+	check_err $? "Sampled packets not reported with latency when should"
+
+	echo 0 > $PSAMPLE_DIR/latency_max
+	psample_capture
+
+	grep -q -e "latency " $CAPTURE_FILE
+	check_fail $? "Sampled packets reported with latency when should not"
+
+	log_test "psample metadata"
+
+	echo 0 > $PSAMPLE_DIR/enable
+}
+
+setup_prepare()
+{
+	modprobe netdevsim &> /dev/null
+
+	echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	while [ ! -d $SYSFS_NET_DIR ] ; do :; done
+
+	set -e
+
+	ip netns add testns1
+	devlink dev reload $DEVLINK_DEV netns testns1
+
+	set +e
+}
+
+cleanup()
+{
+	pre_cleanup
+	rm -f $CAPTURE_FILE
+	ip netns del testns1
+	echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	modprobe -r netdevsim &> /dev/null
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netdevsim/settings b/tools/testing/selftests/drivers/net/netdevsim/settings
new file mode 100644
index 000000000000..a62d2fa1275c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/settings
@@ -0,0 +1 @@
+timeout=600
diff --git a/tools/testing/selftests/drivers/net/netdevsim/tc-mq-visibility.sh b/tools/testing/selftests/drivers/net/netdevsim/tc-mq-visibility.sh
new file mode 100755
index 000000000000..b411fe66510f
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/tc-mq-visibility.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+source ethtool-common.sh
+
+set -o pipefail
+
+n_children() {
+    n=$(tc qdisc show dev $NDEV | grep '^qdisc' | wc -l)
+    echo $((n - 1))
+}
+
+tcq() {
+    tc qdisc $1 dev $NDEV ${@:2}
+}
+
+n_child_assert() {
+    n=$(n_children)
+    if [ $n -ne $1 ]; then
+	echo "ERROR ($root): ${@:2}, expected $1 have $n"
+	((num_errors++))
+    else
+	((num_passes++))
+    fi
+}
+
+
+for root in mq mqprio; do
+    NDEV=$(make_netdev 1 4)
+
+    opts=
+    [ $root == "mqprio" ] && opts='hw 0 num_tc 1 map 0 0 0 0  queues 1@0'
+
+    tcq add root handle 100: $root $opts
+    n_child_assert 4 'Init'
+
+    # All defaults
+
+    for n in 3 2 1 2 3 4 1 4; do
+	ethtool -L $NDEV combined $n
+	n_child_assert $n "Change queues to $n while down"
+    done
+
+    ip link set dev $NDEV up
+
+    for n in 3 2 1 2 3 4 1 4; do
+	ethtool -L $NDEV combined $n
+	n_child_assert $n "Change queues to $n while up"
+    done
+
+    # One real one
+    tcq replace parent 100:4 handle 204: pfifo_fast
+    n_child_assert 4 "One real queue"
+
+    ethtool -L $NDEV combined 1
+    n_child_assert 2 "One real queue, one default"
+
+    ethtool -L $NDEV combined 4
+    n_child_assert 4 "One real queue, rest default"
+
+    # Remove real one
+    tcq del parent 100:4 handle 204:
+
+    # Replace default with pfifo
+    tcq replace parent 100:1 handle 205: pfifo limit 1000
+    n_child_assert 3 "Deleting real one, replacing default one with pfifo"
+
+    ethtool -L $NDEV combined 1
+    n_child_assert 1 "Grafted, one"
+
+    cleanup_nsim
+done
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $((num_passes)) checks"
+    exit 0
+else
+    echo "FAILED $num_errors/$((num_errors+num_passes)) checks"
+    exit 1
+fi
diff --git a/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
new file mode 100755
index 000000000000..4c859ecdad94
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netdevsim/udp_tunnel_nic.sh
@@ -0,0 +1,942 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only
+
+VNI_GEN=$RANDOM
+NSIM_ID=$((RANDOM % 1024))
+NSIM_DEV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_ID
+NSIM_DEV_DFS=/sys/kernel/debug/netdevsim/netdevsim$NSIM_ID
+NSIM_NETDEV=
+HAS_ETHTOOL=
+STATIC_ENTRIES=
+EXIT_STATUS=0
+num_cases=0
+num_errors=0
+
+clean_up_devs=( )
+
+function err_cnt {
+    echo "ERROR:" $@
+    EXIT_STATUS=1
+    ((num_errors++))
+    ((num_cases++))
+}
+
+function pass_cnt {
+    ((num_cases++))
+}
+
+function cleanup_tuns {
+    for dev in "${clean_up_devs[@]}"; do
+	[ -e /sys/class/net/$dev ] && ip link del dev $dev
+    done
+    clean_up_devs=( )
+}
+
+function cleanup_nsim {
+    if [ -e $NSIM_DEV_SYS ]; then
+	echo $NSIM_ID > /sys/bus/netdevsim/del_device
+    fi
+}
+
+function cleanup {
+    cleanup_tuns
+    cleanup_nsim
+}
+
+trap cleanup EXIT
+
+function new_vxlan {
+    local dev=$1
+    local dstport=$2
+    local lower=$3
+    local ipver=$4
+    local flags=$5
+
+    local group ipfl
+
+    [ "$ipver" != '6' ] && group=239.1.1.1 || group=fff1::1
+    [ "$ipver" != '6' ] || ipfl="-6"
+
+    [[ ! "$flags" =~ "external" ]] && flags="$flags id $((VNI_GEN++))"
+
+    ip $ipfl link add $dev type vxlan \
+       group $group \
+       dev $lower \
+       dstport $dstport \
+       $flags
+
+    ip link set dev $dev up
+
+    clean_up_devs=("${clean_up_devs[@]}" $dev)
+
+    check_tables
+}
+
+function new_geneve {
+    local dev=$1
+    local dstport=$2
+    local ipver=$3
+    local flags=$4
+
+    local group ipfl
+
+    [ "$ipver" != '6' ] && remote=1.1.1.2 || group=::2
+    [ "$ipver" != '6' ] || ipfl="-6"
+
+    [[ ! "$flags" =~ "external" ]] && flags="$flags vni $((VNI_GEN++))"
+
+    ip $ipfl link add $dev type geneve \
+       remote $remote  \
+       dstport $dstport \
+       $flags
+
+    ip link set dev $dev up
+
+    clean_up_devs=("${clean_up_devs[@]}" $dev)
+
+    check_tables
+}
+
+function del_dev {
+    local dev=$1
+
+    ip link del dev $dev
+    check_tables
+}
+
+# Helpers for netdevsim port/type encoding
+function mke {
+    local port=$1
+    local type=$2
+
+    echo $((port << 16 | type))
+}
+
+function pre {
+    local val=$1
+
+    echo -e "port: $((val >> 16))\ttype: $((val & 0xffff))"
+}
+
+function pre_ethtool {
+    local val=$1
+    local port=$((val >> 16))
+    local type=$((val & 0xffff))
+
+    case $type in
+	1)
+	    type_name="vxlan"
+	    ;;
+	2)
+	    type_name="geneve"
+	    ;;
+	4)
+	    type_name="vxlan-gpe"
+	    ;;
+	*)
+	    type_name="bit X"
+	    ;;
+    esac
+
+    echo "port $port, $type_name"
+}
+
+function check_table {
+    local path=$NSIM_DEV_DFS/ports/$port/udp_ports/table$1
+    local -n expected=$2
+    local last=$3
+
+    read -a have < $path
+
+    if [ ${#expected[@]} -ne ${#have[@]} ]; then
+	echo "check_table: BAD NUMBER OF ITEMS"
+	return 0
+    fi
+
+    for i in "${!expected[@]}"; do
+	if [ -n "$HAS_ETHTOOL" -a ${expected[i]} -ne 0 ]; then
+	    pp_expected=`pre_ethtool ${expected[i]}`
+	    ethtool --show-tunnels $NSIM_NETDEV | grep "$pp_expected" >/dev/null
+	    if [ $? -ne 0 -a $last -ne 0 ]; then
+		err_cnt "ethtool table $1 on port $port: $pfx - $msg"
+		echo "       check_table: ethtool does not contain '$pp_expected'"
+		ethtool --show-tunnels $NSIM_NETDEV
+		return 0
+
+	    fi
+	fi
+
+	if [ ${expected[i]} != ${have[i]} ]; then
+	    if [ $last -ne 0 ]; then
+		err_cnt "table $1 on port $port: $pfx - $msg"
+		echo "       check_table: wrong entry $i"
+		echo "       expected: `pre ${expected[i]}`"
+		echo "       have:     `pre ${have[i]}`"
+		return 0
+	    fi
+	    return 1
+	fi
+    done
+
+    pass_cnt
+    return 0
+}
+
+function check_tables {
+    # Need retries in case we have workqueue making the changes
+    local retries=10
+
+    while ! check_table 0 exp0 $((retries == 0)); do
+	sleep 0.02
+	((retries--))
+    done
+    while ! check_table 1 exp1 $((retries == 0)); do
+	sleep 0.02
+	((retries--))
+    done
+
+    if [ -n "$HAS_ETHTOOL" -a -n "${STATIC_ENTRIES[0]}" ]; then
+	fail=0
+	for i in "${!STATIC_ENTRIES[@]}"; do
+	    pp_expected=`pre_ethtool ${STATIC_ENTRIES[i]}`
+	    cnt=$(ethtool --show-tunnels $NSIM_NETDEV | grep -c "$pp_expected")
+	    if [ $cnt -ne 1 ]; then
+		err_cnt "ethtool static entry: $pfx - $msg"
+		echo "       check_table: ethtool does not contain '$pp_expected'"
+		ethtool --show-tunnels $NSIM_NETDEV
+		fail=1
+	    fi
+	done
+	[ $fail == 0 ] && pass_cnt
+    fi
+}
+
+function print_table {
+    local path=$NSIM_DEV_DFS/ports/$port/udp_ports/table$1
+    read -a have < $path
+
+    tree $NSIM_DEV_DFS/
+
+    echo "Port $port table $1:"
+
+    for i in "${!have[@]}"; do
+	echo "    `pre ${have[i]}`"
+    done
+
+}
+
+function print_tables {
+    print_table 0
+    print_table 1
+}
+
+function get_netdev_name {
+    local -n old=$1
+
+    udevadm settle
+    new=$(ls /sys/class/net)
+
+    for netdev in $new; do
+	for check in $old; do
+            [ $netdev == $check ] && break
+	done
+
+	if [ $netdev != $check ]; then
+	    echo $netdev
+	    break
+	fi
+    done
+}
+
+###
+### Code start
+###
+
+# Probe ethtool support
+ethtool -h | grep show-tunnels 2>&1 >/dev/null && HAS_ETHTOOL=y
+
+modprobe netdevsim
+
+# Basic test
+pfx="basic"
+
+for port in 0 1; do
+    old_netdevs=$(ls /sys/class/net)
+    if [ $port -eq 0 ]; then
+	echo $NSIM_ID > /sys/bus/netdevsim/new_device
+    else
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+	echo 1 > $NSIM_DEV_SYS/new_port
+    fi
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    msg="new NIC device created"
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+    check_tables
+
+    msg="VxLAN v4 devices"
+    exp0=( `mke 4789 1` 0 0 0 )
+    new_vxlan vxlan0 4789 $NSIM_NETDEV
+    new_vxlan vxlan1 4789 $NSIM_NETDEV
+
+    msg="VxLAN v4 devices go down"
+    exp0=( 0 0 0 0 )
+    ip link set dev vxlan1 down
+    ip link set dev vxlan0 down
+    check_tables
+
+    msg="VxLAN v6 devices"
+    exp0=( `mke 4789 1` 0 0 0 )
+    new_vxlan vxlanA 4789 $NSIM_NETDEV 6
+
+    for ifc in vxlan0 vxlan1; do
+	ip link set dev $ifc up
+    done
+
+    new_vxlan vxlanB 4789 $NSIM_NETDEV 6
+
+    msg="another VxLAN v6 devices"
+    exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+    new_vxlan vxlanC 4790 $NSIM_NETDEV 6
+
+    msg="Geneve device"
+    exp1=( `mke 6081 2` 0 0 0 )
+    new_geneve gnv0 6081
+
+    msg="NIC device goes down"
+    ip link set dev $NSIM_NETDEV down
+    if [ $port -eq 1 ]; then
+	exp0=( 0 0 0 0 )
+	exp1=( 0 0 0 0 )
+    fi
+    check_tables
+    msg="NIC device goes up again"
+    ip link set dev $NSIM_NETDEV up
+    exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+    exp1=( `mke 6081 2` 0 0 0 )
+    check_tables
+
+    cleanup_tuns
+
+    msg="tunnels destroyed"
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+    check_tables
+
+    modprobe -r geneve
+    modprobe -r vxlan
+    modprobe -r udp_tunnel
+
+    check_tables
+done
+
+modprobe -r netdevsim
+
+# Module tests
+pfx="module tests"
+
+if modinfo netdevsim | grep udp_tunnel >/dev/null; then
+    err_cnt "netdevsim depends on udp_tunnel"
+else
+    pass_cnt
+fi
+
+modprobe netdevsim
+
+old_netdevs=$(ls /sys/class/net)
+port=0
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 0 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
+
+msg="create VxLANs"
+exp0=( `mke 10000 1` 0 0 0 )
+new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+exp0=( 0 0 0 0 )
+
+modprobe -r netdevsim
+modprobe netdevsim
+
+# Overflow the table
+
+function overflow_table0 {
+    local pfx=$1
+
+    msg="create VxLANs 1/5"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    msg="create VxLANs 2/5"
+    exp0=( `mke 10000 1` `mke 10001 1` 0 0 )
+    new_vxlan vxlan1 10001 $NSIM_NETDEV
+
+    msg="create VxLANs 3/5"
+    exp0=( `mke 10000 1` `mke 10001 1` `mke 10002 1` 0 )
+    new_vxlan vxlan2 10002 $NSIM_NETDEV
+
+    msg="create VxLANs 4/5"
+    exp0=( `mke 10000 1` `mke 10001 1` `mke 10002 1` `mke 10003 1` )
+    new_vxlan vxlan3 10003 $NSIM_NETDEV
+
+    msg="create VxLANs 5/5"
+    new_vxlan vxlan4 10004 $NSIM_NETDEV
+}
+
+function overflow_table1 {
+    local pfx=$1
+
+    msg="create GENEVE 1/5"
+    exp1=( `mke 20000 2` 0 0 0 )
+    new_geneve gnv0 20000
+
+    msg="create GENEVE 2/5"
+    exp1=( `mke 20000 2` `mke 20001 2` 0 0 )
+    new_geneve gnv1 20001
+
+    msg="create GENEVE 3/5"
+    exp1=( `mke 20000 2` `mke 20001 2` `mke 20002 2` 0 )
+    new_geneve gnv2 20002
+
+    msg="create GENEVE 4/5"
+    exp1=( `mke 20000 2` `mke 20001 2` `mke 20002 2` `mke 20003 2` )
+    new_geneve gnv3 20003
+
+    msg="create GENEVE 5/5"
+    new_geneve gnv4 20004
+}
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    overflow_table0 "overflow NIC table"
+    overflow_table1 "overflow NIC table"
+
+    msg="replace VxLAN in overflow table"
+    exp0=( `mke 10000 1` `mke 10004 1` `mke 10002 1` `mke 10003 1` )
+    del_dev vxlan1
+
+    msg="vacate VxLAN in overflow table"
+    exp0=( `mke 10000 1` `mke 10004 1` 0 `mke 10003 1` )
+    del_dev vxlan2
+
+    msg="replace GENEVE in overflow table"
+    exp1=( `mke 20000 2` `mke 20004 2` `mke 20002 2` `mke 20003 2` )
+    del_dev gnv1
+
+    msg="vacate GENEVE in overflow table"
+    exp1=( `mke 20000 2` `mke 20004 2` 0 `mke 20003 2` )
+    del_dev gnv2
+
+    msg="table sharing - share"
+    exp1=( `mke 20000 2` `mke 20004 2` `mke 30001 4` `mke 20003 2` )
+    new_vxlan vxlanG0 30001 $NSIM_NETDEV 4 "gpe external"
+
+    msg="table sharing - overflow"
+    new_vxlan vxlanG1 30002 $NSIM_NETDEV 4 "gpe external"
+    msg="table sharing - overflow v6"
+    new_vxlan vxlanG2 30002 $NSIM_NETDEV 6 "gpe external"
+
+    exp1=( `mke 20000 2` `mke 30002 4` `mke 30001 4` `mke 20003 2` )
+    del_dev gnv4
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Sync all
+pfx="sync all"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 1 > $NSIM_DEV_DFS/udp_ports_sync_all
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    overflow_table0 "overflow NIC table"
+    overflow_table1 "overflow NIC table"
+
+    msg="replace VxLAN in overflow table"
+    exp0=( `mke 10000 1` `mke 10004 1` `mke 10002 1` `mke 10003 1` )
+    del_dev vxlan1
+
+    msg="vacate VxLAN in overflow table"
+    exp0=( `mke 10000 1` `mke 10004 1` 0 `mke 10003 1` )
+    del_dev vxlan2
+
+    msg="replace GENEVE in overflow table"
+    exp1=( `mke 20000 2` `mke 20004 2` `mke 20002 2` `mke 20003 2` )
+    del_dev gnv1
+
+    msg="vacate GENEVE in overflow table"
+    exp1=( `mke 20000 2` `mke 20004 2` 0 `mke 20003 2` )
+    del_dev gnv2
+
+    msg="table sharing - share"
+    exp1=( `mke 20000 2` `mke 20004 2` `mke 30001 4` `mke 20003 2` )
+    new_vxlan vxlanG0 30001 $NSIM_NETDEV 4 "gpe external"
+
+    msg="table sharing - overflow"
+    new_vxlan vxlanG1 30002 $NSIM_NETDEV 4 "gpe external"
+    msg="table sharing - overflow v6"
+    new_vxlan vxlanG2 30002 $NSIM_NETDEV 6 "gpe external"
+
+    exp1=( `mke 20000 2` `mke 30002 4` `mke 30001 4` `mke 20003 2` )
+    del_dev gnv4
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Destroy full NIC
+pfx="destroy full"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    overflow_table0 "destroy NIC"
+    overflow_table1 "destroy NIC"
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# IPv4 only
+pfx="IPv4 only"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+echo 1 > $NSIM_DEV_DFS/udp_ports_ipv4_only
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    msg="create VxLANs v6"
+    new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+    msg="create VxLANs v6"
+    new_vxlan vxlanA1 10000 $NSIM_NETDEV 6
+
+    ip link set dev vxlanA0 down
+    ip link set dev vxlanA0 up
+    check_tables
+
+    msg="create VxLANs v4"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    msg="down VxLANs v4"
+    exp0=( 0 0 0 0 )
+    ip link set dev vxlan0 down
+    check_tables
+
+    msg="up VxLANs v4"
+    exp0=( `mke 10000 1` 0 0 0 )
+    ip link set dev vxlan0 up
+    check_tables
+
+    msg="destroy VxLANs v4"
+    exp0=( 0 0 0 0 )
+    del_dev vxlan0
+
+    msg="recreate VxLANs v4"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    del_dev vxlanA0
+    del_dev vxlanA1
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# Failures
+pfx="error injection"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    echo 110 > $NSIM_DEV_DFS/ports/$port/udp_ports/inject_error
+
+    msg="1 - create VxLANs v6"
+    exp0=( 0 0 0 0 )
+    new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+    msg="1 - create VxLANs v4"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    msg="1 - remove VxLANs v4"
+    del_dev vxlan0
+
+    msg="1 - remove VxLANs v6"
+    exp0=( 0 0 0 0 )
+    del_dev vxlanA0
+
+    msg="2 - create GENEVE"
+    exp1=( `mke 20000 2` 0 0 0 )
+    new_geneve gnv0 20000
+
+    msg="2 - destroy GENEVE"
+    echo 2 > $NSIM_DEV_DFS/ports/$port/udp_ports/inject_error
+    exp1=( `mke 20000 2` 0 0 0 )
+    del_dev gnv0
+
+    msg="2 - create second GENEVE"
+    exp1=( 0 `mke 20001 2` 0 0 )
+    new_geneve gnv0 20001
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# netdev flags
+pfx="netdev flags"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    msg="create VxLANs v6"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+    msg="create VxLANs v4"
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    msg="turn off"
+    exp0=( 0 0 0 0 )
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload off
+    check_tables
+
+    msg="turn on"
+    exp0=( `mke 10000 1` 0 0 0 )
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload on
+    check_tables
+
+    msg="remove both"
+    del_dev vxlanA0
+    exp0=( 0 0 0 0 )
+    del_dev vxlan0
+    check_tables
+
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload off
+
+    msg="create VxLANs v4 - off"
+    exp0=( 0 0 0 0 )
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    msg="created off - turn on"
+    exp0=( `mke 10000 1` 0 0 0 )
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload on
+    check_tables
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# device initiated reset
+pfx="reset notification"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+for port in 0 1; do
+    if [ $port -ne 0 ]; then
+	echo 1 > $NSIM_DEV_DFS/udp_ports_open_only
+    fi
+
+    echo $port > $NSIM_DEV_SYS/new_port
+    NSIM_NETDEV=`get_netdev_name old_netdevs`
+    ip link set dev $NSIM_NETDEV up
+
+    msg="create VxLANs v6"
+    exp0=( `mke 10000 1` 0 0 0 )
+    new_vxlan vxlanA0 10000 $NSIM_NETDEV 6
+
+    msg="create VxLANs v4"
+    new_vxlan vxlan0 10000 $NSIM_NETDEV
+
+    echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports/reset
+    check_tables
+
+    msg="NIC device goes down"
+    ip link set dev $NSIM_NETDEV down
+    if [ $port -eq 1 ]; then
+	exp0=( 0 0 0 0 )
+	exp1=( 0 0 0 0 )
+    fi
+    check_tables
+
+    echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports/reset
+    check_tables
+
+    msg="NIC device goes up again"
+    ip link set dev $NSIM_NETDEV up
+    exp0=( `mke 10000 1` 0 0 0 )
+    check_tables
+
+    msg="remove both"
+    del_dev vxlanA0
+    exp0=( 0 0 0 0 )
+    del_dev vxlan0
+    check_tables
+
+    echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports/reset
+    check_tables
+
+    msg="destroy NIC"
+    echo $port > $NSIM_DEV_SYS/del_port
+
+    cleanup_tuns
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+done
+
+cleanup_nsim
+
+# shared port tables
+pfx="table sharing"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+echo 0 > $NSIM_DEV_DFS/udp_ports_open_only
+echo 1 > $NSIM_DEV_DFS/udp_ports_shared
+
+old_netdevs=$(ls /sys/class/net)
+echo 1 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
+old_netdevs=$(ls /sys/class/net)
+echo 2 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV2=`get_netdev_name old_netdevs`
+
+msg="VxLAN v4 devices"
+exp0=( `mke 4789 1` 0 0 0 )
+exp1=( 0 0 0 0 )
+new_vxlan vxlan0 4789 $NSIM_NETDEV
+new_vxlan vxlan1 4789 $NSIM_NETDEV2
+
+msg="VxLAN v4 devices go down"
+exp0=( 0 0 0 0 )
+ip link set dev vxlan1 down
+ip link set dev vxlan0 down
+check_tables
+
+for ifc in vxlan0 vxlan1; do
+    ip link set dev $ifc up
+done
+
+msg="VxLAN v6 device"
+exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+new_vxlan vxlanC 4790 $NSIM_NETDEV 6
+
+msg="Geneve device"
+exp1=( `mke 6081 2` 0 0 0 )
+new_geneve gnv0 6081
+
+msg="NIC device goes down"
+ip link set dev $NSIM_NETDEV down
+check_tables
+
+msg="NIC device goes up again"
+ip link set dev $NSIM_NETDEV up
+check_tables
+
+for i in `seq 2`; do
+    msg="turn feature off - 1, rep $i"
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload off
+    check_tables
+
+    msg="turn feature off - 2, rep $i"
+    exp0=( 0 0 0 0 )
+    exp1=( 0 0 0 0 )
+    ethtool -K $NSIM_NETDEV2 rx-udp_tunnel-port-offload off
+    check_tables
+
+    msg="turn feature on - 1, rep $i"
+    exp0=( `mke 4789 1` `mke 4790 1` 0 0 )
+    exp1=( `mke 6081 2` 0 0 0 )
+    ethtool -K $NSIM_NETDEV rx-udp_tunnel-port-offload on
+    check_tables
+
+    msg="turn feature on - 2, rep $i"
+    ethtool -K $NSIM_NETDEV2 rx-udp_tunnel-port-offload on
+    check_tables
+done
+
+msg="tunnels destroyed 1"
+cleanup_tuns
+exp0=( 0 0 0 0 )
+exp1=( 0 0 0 0 )
+check_tables
+
+overflow_table0 "overflow NIC table"
+
+msg="re-add a port"
+
+echo 2 > $NSIM_DEV_SYS/del_port
+echo 2 > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
+check_tables
+
+msg="replace VxLAN in overflow table"
+exp0=( `mke 10000 1` `mke 10004 1` `mke 10002 1` `mke 10003 1` )
+del_dev vxlan1
+
+msg="vacate VxLAN in overflow table"
+exp0=( `mke 10000 1` `mke 10004 1` 0 `mke 10003 1` )
+del_dev vxlan2
+
+echo 1 > $NSIM_DEV_DFS/ports/$port/udp_ports/reset
+check_tables
+
+msg="tunnels destroyed 2"
+cleanup_tuns
+exp0=( 0 0 0 0 )
+exp1=( 0 0 0 0 )
+check_tables
+
+echo 1 > $NSIM_DEV_SYS/del_port
+echo 2 > $NSIM_DEV_SYS/del_port
+
+cleanup_nsim
+
+# Static IANA port
+pfx="static IANA vxlan"
+
+echo $NSIM_ID > /sys/bus/netdevsim/new_device
+echo 0 > $NSIM_DEV_SYS/del_port
+
+echo 1 > $NSIM_DEV_DFS/udp_ports_static_iana_vxlan
+STATIC_ENTRIES=( `mke 4789 1` )
+
+port=1
+old_netdevs=$(ls /sys/class/net)
+echo $port > $NSIM_DEV_SYS/new_port
+NSIM_NETDEV=`get_netdev_name old_netdevs`
+
+msg="check empty"
+exp0=( 0 0 0 0 )
+exp1=( 0 0 0 0 )
+check_tables
+
+msg="add on static port"
+new_vxlan vxlan0 4789 $NSIM_NETDEV
+new_vxlan vxlan1 4789 $NSIM_NETDEV
+
+msg="add on different port"
+exp0=( `mke 4790 1` 0 0 0 )
+new_vxlan vxlan2 4790 $NSIM_NETDEV
+
+cleanup_tuns
+
+msg="tunnels destroyed"
+exp0=( 0 0 0 0 )
+exp1=( 0 0 0 0 )
+check_tables
+
+msg="different type"
+new_geneve gnv0	4789
+
+cleanup_tuns
+cleanup_nsim
+
+# END
+
+modprobe -r netdevsim
+
+if [ $num_errors -eq 0 ]; then
+    echo "PASSED all $num_cases checks"
+else
+    echo "FAILED $num_errors/$num_cases checks"
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/netpoll_basic.py b/tools/testing/selftests/drivers/net/netpoll_basic.py
new file mode 100755
index 000000000000..408bd54d6779
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/netpoll_basic.py
@@ -0,0 +1,396 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# Author: Breno Leitao <leitao@debian.org>
+"""
+ This test aims to evaluate the netpoll polling mechanism (as in
+ netpoll_poll_dev()). It presents a complex scenario where the network
+ attempts to send a packet but fails, prompting it to poll the NIC from within
+ the netpoll TX side.
+
+ This has been a crucial path in netpoll that was previously untested. Jakub
+ suggested using a single RX/TX queue, pushing traffic to the NIC, and then
+ sending netpoll messages (via netconsole) to trigger the poll.
+
+ In parallel, bpftrace is used to detect if netpoll_poll_dev() was called. If
+ so, the test passes, otherwise it will be skipped. This test is very dependent on
+ the driver and environment, given we are trying to trigger a tricky scenario.
+"""
+
+import errno
+import logging
+import os
+import random
+import string
+import threading
+import time
+from typing import Optional
+
+from lib.py import (
+    bpftrace,
+    CmdExitFailure,
+    defer,
+    ethtool,
+    GenerateTraffic,
+    ksft_exit,
+    ksft_pr,
+    ksft_run,
+    KsftFailEx,
+    KsftSkipEx,
+    NetDrvEpEnv,
+    KsftXfailEx,
+)
+
+# Configure logging
+logging.basicConfig(
+    level=logging.INFO,
+    format="%(asctime)s - %(levelname)s - %(message)s",
+)
+
+NETCONSOLE_CONFIGFS_PATH: str = "/sys/kernel/config/netconsole"
+NETCONS_REMOTE_PORT: int = 6666
+NETCONS_LOCAL_PORT: int = 1514
+
+# Max number of netcons messages to send. Each iteration will setup
+# netconsole and send MAX_WRITES messages
+ITERATIONS: int = 20
+# Number of writes to /dev/kmsg per iteration
+MAX_WRITES: int = 40
+# MAPS contains the information coming from bpftrace it will have only one
+# key: "hits", which tells the number of times netpoll_poll_dev() was called
+MAPS: dict[str, int] = {}
+# Thread to run bpftrace in parallel
+BPF_THREAD: Optional[threading.Thread] = None
+# Time bpftrace will be running in parallel.
+BPFTRACE_TIMEOUT: int = 10
+
+
+def ethtool_get_ringsize(interface_name: str) -> tuple[int, int]:
+    """
+    Read the ringsize using ethtool. This will be used to restore it after the test
+    """
+    try:
+        ethtool_result = ethtool(f"-g {interface_name}", json=True)[0]
+        rxs = ethtool_result["rx"]
+        txs = ethtool_result["tx"]
+    except (KeyError, IndexError) as exception:
+        raise KsftSkipEx(
+            f"Failed to read RX/TX ringsize: {exception}. Not going to mess with them."
+        ) from exception
+
+    return rxs, txs
+
+
+def ethtool_set_ringsize(interface_name: str, ring_size: tuple[int, int]) -> bool:
+    """Try to the number of RX and TX ringsize."""
+    rxs = ring_size[0]
+    txs = ring_size[1]
+
+    logging.debug("Setting ring size to %d/%d", rxs, txs)
+    try:
+        ethtool(f"-G {interface_name} rx {rxs} tx {txs}")
+    except CmdExitFailure:
+        # This might fail on real device, retry with a higher value,
+        # worst case, keep it as it is.
+        return False
+
+    return True
+
+
+def ethtool_get_queues_cnt(interface_name: str) -> tuple[int, int, int]:
+    """Read the number of RX, TX and combined queues using ethtool"""
+
+    try:
+        ethtool_result = ethtool(f"-l {interface_name}", json=True)[0]
+        rxq = ethtool_result.get("rx", -1)
+        txq = ethtool_result.get("tx", -1)
+        combined = ethtool_result.get("combined", -1)
+
+    except IndexError as exception:
+        raise KsftSkipEx(
+            f"Failed to read queues numbers: {exception}. Not going to mess with them."
+        ) from exception
+
+    return rxq, txq, combined
+
+
+def ethtool_set_queues_cnt(interface_name: str, queues: tuple[int, int, int]) -> None:
+    """Set the number of RX, TX and combined queues using ethtool"""
+    rxq, txq, combined = queues
+
+    cmdline = f"-L {interface_name}"
+
+    if rxq != -1:
+        cmdline += f" rx {rxq}"
+    if txq != -1:
+        cmdline += f" tx {txq}"
+    if combined != -1:
+        cmdline += f" combined {combined}"
+
+    logging.debug("calling: ethtool %s", cmdline)
+
+    try:
+        ethtool(cmdline)
+    except CmdExitFailure as exception:
+        raise KsftSkipEx(
+            f"Failed to configure RX/TX queues: {exception}. Ethtool not available?"
+        ) from exception
+
+
+def netcons_generate_random_target_name() -> str:
+    """Generate a random target name starting with 'netcons'"""
+    random_suffix = "".join(random.choices(string.ascii_lowercase + string.digits, k=8))
+    return f"netcons_{random_suffix}"
+
+
+def netcons_create_target(
+    config_data: dict[str, str],
+    target_name: str,
+) -> None:
+    """Create a netconsole dynamic target against the interfaces"""
+    logging.debug("Using netconsole name: %s", target_name)
+    try:
+        os.makedirs(f"{NETCONSOLE_CONFIGFS_PATH}/{target_name}", exist_ok=True)
+        logging.debug(
+            "Created target directory: %s/%s", NETCONSOLE_CONFIGFS_PATH, target_name
+        )
+    except OSError as exception:
+        if exception.errno != errno.EEXIST:
+            raise KsftFailEx(
+                f"Failed to create netconsole target directory: {exception}"
+            ) from exception
+
+    try:
+        for key, value in config_data.items():
+            path = f"{NETCONSOLE_CONFIGFS_PATH}/{target_name}/{key}"
+            logging.debug("Writing %s to %s", key, path)
+            with open(path, "w", encoding="utf-8") as file:
+                # Always convert to string to write to file
+                file.write(str(value))
+
+        # Read all configuration values for debugging purposes
+        for debug_key in config_data.keys():
+            with open(
+                f"{NETCONSOLE_CONFIGFS_PATH}/{target_name}/{debug_key}",
+                "r",
+                encoding="utf-8",
+            ) as file:
+                content = file.read()
+                logging.debug(
+                    "%s/%s/%s : %s",
+                    NETCONSOLE_CONFIGFS_PATH,
+                    target_name,
+                    debug_key,
+                    content.strip(),
+                )
+
+    except Exception as exception:
+        raise KsftFailEx(
+            f"Failed to configure netconsole target: {exception}"
+        ) from exception
+
+
+def netcons_configure_target(
+    cfg: NetDrvEpEnv, interface_name: str, target_name: str
+) -> None:
+    """Configure netconsole on the interface with the given target name"""
+    config_data = {
+        "extended": "1",
+        "dev_name": interface_name,
+        "local_port": NETCONS_LOCAL_PORT,
+        "remote_port": NETCONS_REMOTE_PORT,
+        "local_ip": cfg.addr,
+        "remote_ip": cfg.remote_addr,
+        "remote_mac": "00:00:00:00:00:00",  # Not important for this test
+        "enabled": "1",
+    }
+
+    netcons_create_target(config_data, target_name)
+    logging.debug(
+        "Created netconsole target: %s on interface %s", target_name, interface_name
+    )
+
+
+def netcons_delete_target(name: str) -> None:
+    """Delete a netconsole dynamic target"""
+    target_path = f"{NETCONSOLE_CONFIGFS_PATH}/{name}"
+    try:
+        if os.path.exists(target_path):
+            os.rmdir(target_path)
+    except OSError as exception:
+        raise KsftFailEx(
+            f"Failed to delete netconsole target: {exception}"
+        ) from exception
+
+
+def netcons_load_module() -> None:
+    """Try to load the netconsole module"""
+    os.system("modprobe netconsole")
+
+
+def bpftrace_call() -> None:
+    """Call bpftrace to find how many times netpoll_poll_dev() is called.
+    Output is saved in the global variable `maps`"""
+
+    # This is going to update the global variable, that will be seen by the
+    # main function
+    global MAPS  # pylint: disable=W0603
+
+    # This will be passed to bpftrace as in bpftrace -e "expr"
+    expr = "kprobe:netpoll_poll_dev { @hits = count(); }"
+
+    MAPS = bpftrace(expr, timeout=BPFTRACE_TIMEOUT, json=True)
+    logging.debug("BPFtrace output: %s", MAPS)
+
+
+def bpftrace_start():
+    """Start a thread to call `call_bpf` in a parallel thread"""
+    global BPF_THREAD  # pylint: disable=W0603
+
+    BPF_THREAD = threading.Thread(target=bpftrace_call)
+    BPF_THREAD.start()
+    if not BPF_THREAD.is_alive():
+        raise KsftSkipEx("BPFtrace thread is not alive. Skipping test")
+
+
+def bpftrace_stop() -> None:
+    """Stop the bpftrace thread"""
+    if BPF_THREAD:
+        BPF_THREAD.join()
+
+
+def bpftrace_any_hit(join: bool) -> bool:
+    """Check if netpoll_poll_dev() was called by checking the global variable `maps`"""
+    if not BPF_THREAD:
+        raise KsftFailEx("BPFtrace didn't start")
+
+    if BPF_THREAD.is_alive():
+        if join:
+            # Wait for bpftrace to finish
+            BPF_THREAD.join()
+        else:
+            # bpftrace is still running, so, we will not check the result yet
+            return False
+
+    logging.debug("MAPS coming from bpftrace = %s", MAPS)
+    if "hits" not in MAPS.keys():
+        raise KsftFailEx(f"bpftrace failed to run!?: {MAPS}")
+
+    logging.debug("Got a total of %d hits", MAPS["hits"])
+    return MAPS["hits"] > 0
+
+
+def do_netpoll_flush_monitored(cfg: NetDrvEpEnv, ifname: str, target_name: str) -> None:
+    """Print messages to the console, trying to trigger a netpoll poll"""
+    # Start bpftrace in parallel, so, it is watching
+    # netpoll_poll_dev() while we are sending netconsole messages
+    bpftrace_start()
+    defer(bpftrace_stop)
+
+    do_netpoll_flush(cfg, ifname, target_name)
+
+    if bpftrace_any_hit(join=True):
+        ksft_pr("netpoll_poll_dev() was called. Success")
+        return
+
+    raise KsftXfailEx("netpoll_poll_dev() was not called during the test...")
+
+
+def do_netpoll_flush(cfg: NetDrvEpEnv, ifname: str, target_name: str) -> None:
+    """Print messages to the console, trying to trigger a netpoll poll"""
+    netcons_configure_target(cfg, ifname, target_name)
+    retry = 0
+
+    for i in range(int(ITERATIONS)):
+        if not BPF_THREAD.is_alive() or bpftrace_any_hit(join=False):
+            # bpftrace is done, stop sending messages
+            break
+
+        msg = f"netcons test #{i}"
+        with open("/dev/kmsg", "w", encoding="utf-8") as kmsg:
+            for j in range(MAX_WRITES):
+                try:
+                    kmsg.write(f"{msg}-{j}\n")
+                except OSError as exception:
+                    # in some cases, kmsg can be busy, so, we will retry
+                    time.sleep(1)
+                    retry += 1
+                    if retry < 5:
+                        logging.info("Failed to write to kmsg. Retrying")
+                        # Just retry a few times
+                        continue
+                    raise KsftFailEx(
+                        f"Failed to write to kmsg: {exception}"
+                    ) from exception
+
+        netcons_delete_target(target_name)
+        netcons_configure_target(cfg, ifname, target_name)
+        # If we sleep here, we will have a better chance of triggering
+        # This number is based on a few tests I ran while developing this test
+        time.sleep(0.4)
+
+
+def configure_network(ifname: str) -> None:
+    """Configure ring size and queue numbers"""
+
+    # Set defined queues to 1 to force congestion
+    prev_queues = ethtool_get_queues_cnt(ifname)
+    logging.debug("RX/TX/combined queues: %s", prev_queues)
+    # Only set the queues to 1 if they exists in the device. I.e, they are > 0
+    ethtool_set_queues_cnt(ifname, tuple(1 if x > 0 else x for x in prev_queues))
+    defer(ethtool_set_queues_cnt, ifname, prev_queues)
+
+    # Try to set the ring size to some low value.
+    # Do not fail if the hardware do not accepted desired values
+    prev_ring_size = ethtool_get_ringsize(ifname)
+    for size in [(1, 1), (128, 128), (256, 256)]:
+        if ethtool_set_ringsize(ifname, size):
+            # hardware accepted the desired ringsize
+            logging.debug("Set RX/TX ringsize to: %s from %s", size, prev_ring_size)
+            break
+    defer(ethtool_set_ringsize, ifname, prev_ring_size)
+
+
+def test_netpoll(cfg: NetDrvEpEnv) -> None:
+    """
+    Test netpoll by sending traffic to the interface and then sending
+    netconsole messages to trigger a poll
+    """
+
+    ifname = cfg.ifname
+    configure_network(ifname)
+    target_name = netcons_generate_random_target_name()
+    traffic = None
+
+    try:
+        traffic = GenerateTraffic(cfg)
+        do_netpoll_flush_monitored(cfg, ifname, target_name)
+    finally:
+        if traffic:
+            traffic.stop()
+
+        # Revert RX/TX queues
+        netcons_delete_target(target_name)
+
+
+def test_check_dependencies() -> None:
+    """Check if the dependencies are met"""
+    if not os.path.exists(NETCONSOLE_CONFIGFS_PATH):
+        raise KsftSkipEx(
+            f"Directory {NETCONSOLE_CONFIGFS_PATH} does not exist. CONFIG_NETCONSOLE_DYNAMIC might not be set."  # pylint: disable=C0301
+        )
+
+
+def main() -> None:
+    """Main function to run the test"""
+    netcons_load_module()
+    test_check_dependencies()
+    with NetDrvEpEnv(__file__) as cfg:
+        ksft_run(
+            [test_netpoll],
+            args=(cfg,),
+        )
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/ocelot/basic_qos.sh b/tools/testing/selftests/drivers/net/ocelot/basic_qos.sh
new file mode 100755
index 000000000000..c51c83421c61
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/ocelot/basic_qos.sh
@@ -0,0 +1,253 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2022 NXP
+
+# The script is mostly generic, with the exception of the
+# ethtool per-TC counter names ("rx_green_prio_${tc}")
+
+WAIT_TIME=1
+NUM_NETIFS=4
+STABLE_MAC_ADDRS=yes
+NETIF_CREATE=no
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+require_command dcb
+
+h1=${NETIFS[p1]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p3]}
+h2=${NETIFS[p4]}
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h1_vlan_create()
+{
+	local vid=$1
+
+	vlan_create $h1 $vid
+	simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+	ip link set $h1.$vid type vlan \
+		egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \
+		ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+}
+
+h1_vlan_destroy()
+{
+	local vid=$1
+
+	simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+	vlan_destroy $h1 $vid
+}
+
+h2_vlan_create()
+{
+	local vid=$1
+
+	vlan_create $h2 $vid
+	simple_if_init $h2.$vid $H2_IPV4/24 $H2_IPV6/64
+	ip link set $h2.$vid type vlan \
+		egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7 \
+		ingress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+}
+
+h2_vlan_destroy()
+{
+	local vid=$1
+
+	simple_if_fini $h2.$vid $H2_IPV4/24 $H2_IPV6/64
+	vlan_destroy $h2 $vid
+}
+
+vlans_prepare()
+{
+	h1_vlan_create 100
+	h2_vlan_create 100
+
+	tc qdisc add dev ${h1}.100 clsact
+	tc filter add dev ${h1}.100 egress protocol ipv4 \
+		flower ip_proto icmp action skbedit priority 3
+	tc filter add dev ${h1}.100 egress protocol ipv6 \
+		flower ip_proto icmpv6 action skbedit priority 3
+}
+
+vlans_destroy()
+{
+	tc qdisc del dev ${h1}.100 clsact
+
+	h1_vlan_destroy 100
+	h2_vlan_destroy 100
+}
+
+switch_create()
+{
+	ip link set ${swp1} up
+	ip link set ${swp2} up
+
+	# Ports should trust VLAN PCP even with vlan_filtering=0
+	ip link add br0 type bridge
+	ip link set ${swp1} master br0
+	ip link set ${swp2} master br0
+	ip link set br0 up
+}
+
+switch_destroy()
+{
+	ip link del br0
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+	switch_destroy
+
+	vrf_cleanup
+}
+
+dscp_cs_to_tos()
+{
+	local dscp_cs=$1
+
+	# https://datatracker.ietf.org/doc/html/rfc2474
+	# 4.2.2.1  The Class Selector Codepoints
+	echo $((${dscp_cs} << 5))
+}
+
+run_test()
+{
+	local test_name=$1; shift
+	local if_name=$1; shift
+	local tc=$1; shift
+	local tos=$1; shift
+	local counter_name="rx_green_prio_${tc}"
+	local ipv4_before
+	local ipv4_after
+	local ipv6_before
+	local ipv6_after
+
+	ipv4_before=$(ethtool_stats_get ${swp1} "${counter_name}")
+	ping_do ${if_name} $H2_IPV4 "-Q ${tos}"
+	ipv4_after=$(ethtool_stats_get ${swp1} "${counter_name}")
+
+	if [ $((${ipv4_after} - ${ipv4_before})) -lt ${PING_COUNT} ]; then
+		RET=1
+	else
+		RET=0
+	fi
+	log_test "IPv4 ${test_name}"
+
+	ipv6_before=$(ethtool_stats_get ${swp1} "${counter_name}")
+	ping_do ${if_name} $H2_IPV6 "-Q ${tos}"
+	ipv6_after=$(ethtool_stats_get ${swp1} "${counter_name}")
+
+	if [ $((${ipv6_after} - ${ipv6_before})) -lt ${PING_COUNT} ]; then
+		RET=1
+	else
+		RET=0
+	fi
+	log_test "IPv6 ${test_name}"
+}
+
+port_default_prio_get()
+{
+	local if_name=$1
+	local prio
+
+	prio="$(dcb -j app show dev ${if_name} default-prio | \
+		jq '.default_prio[]')"
+	if [ -z "${prio}" ]; then
+		prio=0
+	fi
+
+	echo ${prio}
+}
+
+test_port_default()
+{
+	local orig=$(port_default_prio_get ${swp1})
+	local dmac=$(mac_get ${h2})
+
+	dcb app replace dev ${swp1} default-prio 5
+
+	run_test "Port-default QoS classification" ${h1} 5 0
+
+	dcb app replace dev ${swp1} default-prio ${orig}
+}
+
+test_vlan_pcp()
+{
+	vlans_prepare
+
+	run_test "Trusted VLAN PCP QoS classification" ${h1}.100 3 0
+
+	vlans_destroy
+}
+
+test_ip_dscp()
+{
+	local port_default=$(port_default_prio_get ${swp1})
+	local tos=$(dscp_cs_to_tos 4)
+
+	dcb app add dev ${swp1} dscp-prio CS4:4
+	run_test "Trusted DSCP QoS classification" ${h1} 4 ${tos}
+	dcb app del dev ${swp1} dscp-prio CS4:4
+
+	vlans_prepare
+	run_test "Untrusted DSCP QoS classification follows VLAN PCP" \
+		${h1}.100 3 ${tos}
+	vlans_destroy
+
+	run_test "Untrusted DSCP QoS classification follows port default" \
+		${h1} ${port_default} ${tos}
+}
+
+trap cleanup EXIT
+
+ALL_TESTS="
+	test_port_default
+	test_vlan_pcp
+	test_ip_dscp
+"
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/ocelot/psfp.sh b/tools/testing/selftests/drivers/net/ocelot/psfp.sh
new file mode 100755
index 000000000000..8972f42dfe03
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/ocelot/psfp.sh
@@ -0,0 +1,323 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2021-2022 NXP
+
+# Note: On LS1028A, in lack of enough user ports, this setup requires patching
+# the device tree to use the second CPU port as a user port
+
+WAIT_TIME=1
+NUM_NETIFS=4
+STABLE_MAC_ADDRS=yes
+NETIF_CREATE=no
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+source $lib_dir/tsn_lib.sh
+
+UDS_ADDRESS_H1="/var/run/ptp4l_h1"
+UDS_ADDRESS_SWP1="/var/run/ptp4l_swp1"
+
+# Tunables
+NUM_PKTS=1000
+STREAM_VID=100
+STREAM_PRIO=6
+# Use a conservative cycle of 10 ms to allow the test to still pass when the
+# kernel has some extra overhead like lockdep etc
+CYCLE_TIME_NS=10000000
+# Create two Gate Control List entries, one OPEN and one CLOSE, of equal
+# durations
+GATE_DURATION_NS=$((${CYCLE_TIME_NS} / 2))
+# Give 2/3 of the cycle time to user space and 1/3 to the kernel
+FUDGE_FACTOR=$((${CYCLE_TIME_NS} / 3))
+# Shift the isochron base time by half the gate time, so that packets are
+# always received by swp1 close to the middle of the time slot, to minimize
+# inaccuracies due to network sync
+SHIFT_TIME_NS=$((${GATE_DURATION_NS} / 2))
+
+h1=${NETIFS[p1]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p3]}
+h2=${NETIFS[p4]}
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+# Chain number exported by the ocelot driver for
+# Per-Stream Filtering and Policing filters
+PSFP()
+{
+	echo 30000
+}
+
+psfp_chain_create()
+{
+	local if_name=$1
+
+	tc qdisc add dev $if_name clsact
+
+	tc filter add dev $if_name ingress chain 0 pref 49152 flower \
+		skip_sw action goto chain $(PSFP)
+}
+
+psfp_chain_destroy()
+{
+	local if_name=$1
+
+	tc qdisc del dev $if_name clsact
+}
+
+psfp_filter_check()
+{
+	local expected=$1
+	local packets=""
+	local drops=""
+	local stats=""
+
+	stats=$(tc -j -s filter show dev ${swp1} ingress chain $(PSFP) pref 1)
+	packets=$(echo ${stats} | jq ".[1].options.actions[].stats.packets")
+	drops=$(echo ${stats} | jq ".[1].options.actions[].stats.drops")
+
+	if ! [ "${packets}" = "${expected}" ]; then
+		printf "Expected filter to match on %d packets but matched on %d instead\n" \
+			"${expected}" "${packets}"
+	fi
+
+	echo "Hardware filter reports ${drops} drops"
+}
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+switch_create()
+{
+	local h2_mac_addr=$(mac_get $h2)
+
+	ip link set ${swp1} up
+	ip link set ${swp2} up
+
+	ip link add br0 type bridge vlan_filtering 1
+	ip link set ${swp1} master br0
+	ip link set ${swp2} master br0
+	ip link set br0 up
+
+	bridge vlan add dev ${swp2} vid ${STREAM_VID}
+	bridge vlan add dev ${swp1} vid ${STREAM_VID}
+	# PSFP on Ocelot requires the filter to also be added to the bridge
+	# FDB, and not be removed
+	bridge fdb add dev ${swp2} \
+		${h2_mac_addr} vlan ${STREAM_VID} static master
+
+	psfp_chain_create ${swp1}
+
+	tc filter add dev ${swp1} ingress chain $(PSFP) pref 1 \
+		protocol 802.1Q flower skip_sw \
+		dst_mac ${h2_mac_addr} vlan_id ${STREAM_VID} \
+		action gate base-time 0.000000000 \
+		sched-entry OPEN  ${GATE_DURATION_NS} -1 -1 \
+		sched-entry CLOSE ${GATE_DURATION_NS} -1 -1
+}
+
+switch_destroy()
+{
+	psfp_chain_destroy ${swp1}
+	ip link del br0
+}
+
+txtime_setup()
+{
+	local if_name=$1
+
+	tc qdisc add dev ${if_name} clsact
+	# Classify PTP on TC 7 and isochron on TC 6
+	tc filter add dev ${if_name} egress protocol 0x88f7 \
+		flower action skbedit priority 7
+	tc filter add dev ${if_name} egress protocol 802.1Q \
+		flower vlan_ethtype 0xdead action skbedit priority 6
+	tc qdisc add dev ${if_name} handle 100: parent root mqprio num_tc 8 \
+		queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
+		map 0 1 2 3 4 5 6 7 \
+		hw 1
+	# Set up TC 6 for SO_TXTIME. tc-mqprio queues count from 1.
+	tc qdisc replace dev ${if_name} parent 100:$((${STREAM_PRIO} + 1)) etf \
+		clockid CLOCK_TAI offload delta ${FUDGE_FACTOR}
+}
+
+txtime_cleanup()
+{
+	local if_name=$1
+
+	tc qdisc del dev ${if_name} root
+	tc qdisc del dev ${if_name} clsact
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+
+	txtime_setup ${h1}
+
+	# Set up swp1 as a master PHC for h1, synchronized to the local
+	# CLOCK_REALTIME.
+	phc2sys_start ${UDS_ADDRESS_SWP1}
+
+	# Assumption true for LS1028A: h1 and h2 use the same PHC. So by
+	# synchronizing h1 to swp1 via PTP, h2 is also implicitly synchronized
+	# to swp1 (and both to CLOCK_REALTIME).
+	ptp4l_start ${h1} true ${UDS_ADDRESS_H1}
+	ptp4l_start ${swp1} false ${UDS_ADDRESS_SWP1}
+
+	# Make sure there are no filter matches at the beginning of the test
+	psfp_filter_check 0
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ptp4l_stop ${swp1}
+	ptp4l_stop ${h1}
+	phc2sys_stop
+	isochron_recv_stop
+
+	txtime_cleanup ${h1}
+
+	h2_destroy
+	h1_destroy
+	switch_destroy
+
+	vrf_cleanup
+}
+
+debug_incorrectly_dropped_packets()
+{
+	local isochron_dat=$1
+	local dropped_seqids
+	local seqid
+
+	echo "Packets incorrectly dropped:"
+
+	dropped_seqids=$(isochron report \
+		--input-file "${isochron_dat}" \
+		--printf-format "%u RX hw %T\n" \
+		--printf-args "qR" | \
+		grep 'RX hw 0.000000000' | \
+		awk '{print $1}')
+
+	for seqid in ${dropped_seqids}; do
+		isochron report \
+			--input-file "${isochron_dat}" \
+			--start ${seqid} --stop ${seqid} \
+			--printf-format "seqid %u scheduled for %T, HW TX timestamp %T\n" \
+			--printf-args "qST"
+	done
+}
+
+debug_incorrectly_received_packets()
+{
+	local isochron_dat=$1
+
+	echo "Packets incorrectly received:"
+
+	isochron report \
+		--input-file "${isochron_dat}" \
+		--printf-format "seqid %u scheduled for %T, HW TX timestamp %T, HW RX timestamp %T\n" \
+		--printf-args "qSTR" |
+		grep -v 'HW RX timestamp 0.000000000'
+}
+
+run_test()
+{
+	local base_time=$1
+	local expected=$2
+	local test_name=$3
+	local debug=$4
+	local isochron_dat="$(mktemp)"
+	local extra_args=""
+	local received
+
+	isochron_do \
+		"${h1}" \
+		"${h2}" \
+		"${UDS_ADDRESS_H1}" \
+		"" \
+		"${base_time}" \
+		"${CYCLE_TIME_NS}" \
+		"${SHIFT_TIME_NS}" \
+		"${GATE_DURATION_NS}" \
+		"${NUM_PKTS}" \
+		"${STREAM_VID}" \
+		"${STREAM_PRIO}" \
+		"" \
+		"${isochron_dat}"
+
+	received=$(isochron_report_num_received "${isochron_dat}")
+	if [ "${received}" = "${expected}" ]; then
+		RET=0
+	else
+		RET=1
+		echo "Expected isochron to receive ${expected} packets but received ${received}"
+	fi
+
+	log_test "${test_name}"
+
+	if [ "$RET" = "1" ]; then
+		${debug} "${isochron_dat}"
+	fi
+
+	rm ${isochron_dat} 2> /dev/null
+}
+
+test_gate_in_band()
+{
+	# Send packets in-band with the OPEN gate entry
+	run_test 0.000000000 ${NUM_PKTS} "In band" \
+		debug_incorrectly_dropped_packets
+
+	psfp_filter_check ${NUM_PKTS}
+}
+
+test_gate_out_of_band()
+{
+	# Send packets in-band with the CLOSE gate entry
+	run_test 0.005000000 0 "Out of band" \
+		debug_incorrectly_received_packets
+
+	psfp_filter_check $((2 * ${NUM_PKTS}))
+}
+
+trap cleanup EXIT
+
+ALL_TESTS="
+	test_gate_in_band
+	test_gate_out_of_band
+"
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/ocelot/tc_flower_chains.sh b/tools/testing/selftests/drivers/net/ocelot/tc_flower_chains.sh
new file mode 100755
index 000000000000..aff0a59f92d9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/ocelot/tc_flower_chains.sh
@@ -0,0 +1,352 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2020 NXP
+
+WAIT_TIME=1
+NUM_NETIFS=4
+STABLE_MAC_ADDRS=yes
+lib_dir=$(dirname $0)/../../../net/forwarding
+source $lib_dir/tc_common.sh
+source $lib_dir/lib.sh
+
+require_command tcpdump
+
+h1=${NETIFS[p1]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p3]}
+h2=${NETIFS[p4]}
+
+# Helpers to map a VCAP IS1 and VCAP IS2 lookup and policy to a chain number
+# used by the kernel driver. The numbers are:
+# VCAP IS1 lookup 0:            10000
+# VCAP IS1 lookup 1:            11000
+# VCAP IS1 lookup 2:            12000
+# VCAP IS2 lookup 0 policy 0:   20000
+# VCAP IS2 lookup 0 policy 1:   20001
+# VCAP IS2 lookup 0 policy 255: 20255
+# VCAP IS2 lookup 1 policy 0:   21000
+# VCAP IS2 lookup 1 policy 1:   21001
+# VCAP IS2 lookup 1 policy 255: 21255
+IS1()
+{
+	local lookup=$1
+
+	echo $((10000 + 1000 * lookup))
+}
+
+IS2()
+{
+	local lookup=$1
+	local pag=$2
+
+	echo $((20000 + 1000 * lookup + pag))
+}
+
+ES0()
+{
+	echo 0
+}
+
+# The Ocelot switches have a fixed ingress pipeline composed of:
+#
+# +----------------------------------------------+      +-----------------------------------------+
+# |                   VCAP IS1                   |      |                  VCAP IS2               |
+# |                                              |      |                                         |
+# | +----------+    +----------+    +----------+ |      |            +----------+    +----------+ |
+# | | Lookup 0 |    | Lookup 1 |    | Lookup 2 | | --+------> PAG 0: | Lookup 0 | -> | Lookup 1 | |
+# | +----------+ -> +----------+ -> +----------+ |   |  |            +----------+    +----------+ |
+# | |key&action|    |key&action|    |key&action| |   |  |            |key&action|    |key&action| |
+# | |key&action|    |key&action|    |key&action| |   |  |            |    ..    |    |    ..    | |
+# | |    ..    |    |    ..    |    |    ..    | |   |  |            +----------+    +----------+ |
+# | +----------+    +----------+    +----------+ |   |  |                                         |
+# |                                 selects PAG  |   |  |            +----------+    +----------+ |
+# +----------------------------------------------+   +------> PAG 1: | Lookup 0 | -> | Lookup 1 | |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    |  |            |key&action|    |key&action| |
+#                                                    |  |            |    ..    |    |    ..    | |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    |  |      ...                                |
+#                                                    |  |                                         |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    +----> PAG 254: | Lookup 0 | -> | Lookup 1 | |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    |  |            |key&action|    |key&action| |
+#                                                    |  |            |    ..    |    |    ..    | |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    |  |                                         |
+#                                                    |  |            +----------+    +----------+ |
+#                                                    +----> PAG 255: | Lookup 0 | -> | Lookup 1 | |
+#                                                       |            +----------+    +----------+ |
+#                                                       |            |key&action|    |key&action| |
+#                                                       |            |    ..    |    |    ..    | |
+#                                                       |            +----------+    +----------+ |
+#                                                       +-----------------------------------------+
+#
+# Both the VCAP IS1 (Ingress Stage 1) and IS2 (Ingress Stage 2) are indexed
+# (looked up) multiple times: IS1 3 times, and IS2 2 times. Each filter
+# (key and action pair) can be configured to only match during the first, or
+# second, etc, lookup.
+#
+# During one TCAM lookup, the filter processing stops at the first entry that
+# matches, then the pipeline jumps to the next lookup.
+# The driver maps each individual lookup of each individual ingress TCAM to a
+# separate chain number. For correct rule offloading, it is mandatory that each
+# filter installed in one TCAM is terminated by a non-optional GOTO action to
+# the next lookup from the fixed pipeline.
+#
+# A chain can only be used if there is a GOTO action correctly set up from the
+# prior lookup in the processing pipeline. Setting up all chains is not
+# mandatory.
+
+# NOTE: VCAP IS1 currently uses only S1_NORMAL half keys and VCAP IS2
+# dynamically chooses between MAC_ETYPE, ARP, IP4_TCP_UDP, IP4_OTHER, which are
+# all half keys as well.
+
+create_tcam_skeleton()
+{
+	local eth=$1
+
+	tc qdisc add dev $eth clsact
+
+	# VCAP IS1 is the Ingress Classification TCAM and can offload the
+	# following actions:
+	# - skbedit priority
+	# - vlan pop
+	# - vlan modify
+	# - goto (only in lookup 2, the last IS1 lookup)
+	tc filter add dev $eth ingress chain 0 pref 49152 flower \
+		skip_sw action goto chain $(IS1 0)
+	tc filter add dev $eth ingress chain $(IS1 0) pref 49152 \
+		flower skip_sw action goto chain $(IS1 1)
+	tc filter add dev $eth ingress chain $(IS1 1) pref 49152 \
+		flower skip_sw action goto chain $(IS1 2)
+	tc filter add dev $eth ingress chain $(IS1 2) pref 49152 \
+		flower skip_sw action goto chain $(IS2 0 0)
+
+	# VCAP IS2 is the Security Enforcement ingress TCAM and can offload the
+	# following actions:
+	# - trap
+	# - drop
+	# - police
+	# The two VCAP IS2 lookups can be segmented into up to 256 groups of
+	# rules, called Policies. A Policy is selected through the Policy
+	# Association Group (PAG) action of VCAP IS1 (which is the
+	# GOTO offload).
+	tc filter add dev $eth ingress chain $(IS2 0 0) pref 49152 \
+		flower skip_sw action goto chain $(IS2 1 0)
+}
+
+setup_prepare()
+{
+	ip link set $swp1 up
+	ip link set $swp2 up
+	ip link set $h2 up
+	ip link set $h1 up
+
+	create_tcam_skeleton $swp1
+
+	ip link add br0 type bridge
+	ip link set $swp1 master br0
+	ip link set $swp2 master br0
+	ip link set br0 up
+
+	ip link add link $h1 name $h1.100 type vlan id 100
+	ip link set $h1.100 up
+
+	ip link add link $h1 name $h1.200 type vlan id 200
+	ip link set $h1.200 up
+
+	tc filter add dev $swp1 ingress chain $(IS1 1) pref 1 \
+		protocol 802.1Q flower skip_sw vlan_id 100 \
+		action vlan pop \
+		action goto chain $(IS1 2)
+
+	tc filter add dev $swp1 egress chain $(ES0) pref 1 \
+		flower skip_sw indev $swp2 \
+		action vlan push protocol 802.1Q id 100
+
+	tc filter add dev $swp1 ingress chain $(IS1 0) pref 2 \
+		protocol ipv4 flower skip_sw src_ip 10.1.1.2 \
+		action skbedit priority 7 \
+		action goto chain $(IS1 1)
+
+	tc filter add dev $swp1 ingress chain $(IS2 0 0) pref 1 \
+		protocol ipv4 flower skip_sw ip_proto udp dst_port 5201 \
+		action police rate 50mbit burst 64k conform-exceed drop/pipe \
+		action goto chain $(IS2 1 0)
+}
+
+cleanup()
+{
+	ip link del $h1.200
+	ip link del $h1.100
+	tc qdisc del dev $swp1 clsact
+	ip link del br0
+}
+
+test_vlan_pop()
+{
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	RET=0
+
+	tcpdump_start $h2
+
+	# Work around Mausezahn VLAN builder bug
+	# (https://github.com/netsniff-ng/netsniff-ng/issues/225) by using
+	# an 8021q upper
+	$MZ $h1.100 -q -c 1 -p 64 -a $h1_mac -b $h2_mac -t ip
+
+	sleep 1
+
+	tcpdump_stop $h2
+
+	tcpdump_show $h2 | grep -q "$h1_mac > $h2_mac, ethertype IPv4"
+	check_err "$?" "untagged reception"
+
+	tcpdump_cleanup $h2
+
+	log_test "VLAN pop"
+}
+
+test_vlan_push()
+{
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	RET=0
+
+	tcpdump_start $h1.100
+
+	$MZ $h2 -q -c 1 -p 64 -a $h2_mac -b $h1_mac -t ip
+
+	sleep 1
+
+	tcpdump_stop $h1.100
+
+	tcpdump_show $h1.100 | grep -q "$h2_mac > $h1_mac"
+	check_err "$?" "tagged reception"
+
+	tcpdump_cleanup $h1.100
+
+	log_test "VLAN push"
+}
+
+test_vlan_ingress_modify()
+{
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	RET=0
+
+	ip link set br0 type bridge vlan_filtering 1
+	bridge vlan add dev $swp1 vid 200
+	bridge vlan add dev $swp1 vid 300
+	bridge vlan add dev $swp2 vid 300
+
+	tc filter add dev $swp1 ingress chain $(IS1 2) pref 3 \
+		protocol 802.1Q flower skip_sw vlan_id 200 src_mac $h1_mac \
+		action vlan modify id 300 \
+		action goto chain $(IS2 0 0)
+
+	tcpdump_start $h2
+
+	$MZ $h1.200 -q -c 1 -p 64 -a $h1_mac -b $h2_mac -t ip
+
+	sleep 1
+
+	tcpdump_stop $h2
+
+	tcpdump_show $h2 | grep -q "$h1_mac > $h2_mac, .* vlan 300"
+	check_err "$?" "tagged reception"
+
+	tcpdump_cleanup $h2
+
+	tc filter del dev $swp1 ingress chain $(IS1 2) pref 3
+
+	bridge vlan del dev $swp1 vid 200
+	bridge vlan del dev $swp1 vid 300
+	bridge vlan del dev $swp2 vid 300
+	ip link set br0 type bridge vlan_filtering 0
+
+	log_test "Ingress VLAN modification"
+}
+
+test_vlan_egress_modify()
+{
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	RET=0
+
+	tc qdisc add dev $swp2 clsact
+
+	ip link set br0 type bridge vlan_filtering 1
+	bridge vlan add dev $swp1 vid 200
+	bridge vlan add dev $swp2 vid 200
+
+	tc filter add dev $swp2 egress chain $(ES0) pref 3 \
+		protocol 802.1Q flower skip_sw vlan_id 200 vlan_prio 0 \
+		action vlan modify id 300 priority 7
+
+	tcpdump_start $h2
+
+	$MZ $h1.200 -q -c 1 -p 64 -a $h1_mac -b $h2_mac -t ip
+
+	sleep 1
+
+	tcpdump_stop $h2
+
+	tcpdump_show $h2 | grep -q "$h1_mac > $h2_mac, .* vlan 300"
+	check_err "$?" "tagged reception"
+
+	tcpdump_cleanup $h2
+
+	tc filter del dev $swp2 egress chain $(ES0) pref 3
+	tc qdisc del dev $swp2 clsact
+
+	bridge vlan del dev $swp1 vid 200
+	bridge vlan del dev $swp2 vid 200
+	ip link set br0 type bridge vlan_filtering 0
+
+	log_test "Egress VLAN modification"
+}
+
+test_skbedit_priority()
+{
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+	local num_pkts=100
+
+	before=$(ethtool_stats_get $swp1 'rx_green_prio_7')
+
+	$MZ $h1 -q -c $num_pkts -p 64 -a $h1_mac -b $h2_mac -t ip -A 10.1.1.2
+
+	after=$(ethtool_stats_get $swp1 'rx_green_prio_7')
+
+	if [ $((after - before)) = $num_pkts ]; then
+		RET=0
+	else
+		RET=1
+	fi
+
+	log_test "Frame prioritization"
+}
+
+trap cleanup EXIT
+
+ALL_TESTS="
+	test_vlan_pop
+	test_vlan_push
+	test_vlan_ingress_modify
+	test_vlan_egress_modify
+	test_skbedit_priority
+"
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/drivers/net/ping.py b/tools/testing/selftests/drivers/net/ping.py
new file mode 100755
index 000000000000..da3623c5e8a9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/ping.py
@@ -0,0 +1,241 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import os
+import random, string, time
+from lib.py import ksft_run, ksft_exit
+from lib.py import ksft_eq, KsftSkipEx, KsftFailEx
+from lib.py import EthtoolFamily, NetDrvEpEnv
+from lib.py import bkg, cmd, wait_port_listen, rand_port
+from lib.py import defer, ethtool, ip
+
+no_sleep=False
+
+def _test_v4(cfg) -> None:
+    if not cfg.addr_v["4"]:
+        return
+
+    cmd("ping -c 1 -W0.5 " + cfg.remote_addr_v["4"])
+    cmd("ping -c 1 -W0.5 " + cfg.addr_v["4"], host=cfg.remote)
+    cmd("ping -s 65000 -c 1 -W0.5 " + cfg.remote_addr_v["4"])
+    cmd("ping -s 65000 -c 1 -W0.5 " + cfg.addr_v["4"], host=cfg.remote)
+
+def _test_v6(cfg) -> None:
+    if not cfg.addr_v["6"]:
+        return
+
+    cmd("ping -c 1 -W5 " + cfg.remote_addr_v["6"])
+    cmd("ping -c 1 -W5 " + cfg.addr_v["6"], host=cfg.remote)
+    cmd("ping -s 65000 -c 1 -W0.5 " + cfg.remote_addr_v["6"])
+    cmd("ping -s 65000 -c 1 -W0.5 " + cfg.addr_v["6"], host=cfg.remote)
+
+def _test_tcp(cfg) -> None:
+    cfg.require_cmd("socat", local=False, remote=True)
+
+    port = rand_port()
+    listen_cmd = f"socat -{cfg.addr_ipver} -t 2 -u TCP-LISTEN:{port},reuseport STDOUT"
+
+    test_string = ''.join(random.choice(string.ascii_lowercase) for _ in range(65536))
+    with bkg(listen_cmd, exit_wait=True) as nc:
+        wait_port_listen(port)
+
+        cmd(f"echo {test_string} | socat -t 2 -u STDIN TCP:{cfg.baddr}:{port}",
+            shell=True, host=cfg.remote)
+    ksft_eq(nc.stdout.strip(), test_string)
+
+    test_string = ''.join(random.choice(string.ascii_lowercase) for _ in range(65536))
+    with bkg(listen_cmd, host=cfg.remote, exit_wait=True) as nc:
+        wait_port_listen(port, host=cfg.remote)
+
+        cmd(f"echo {test_string} | socat -t 2 -u STDIN TCP:{cfg.remote_baddr}:{port}", shell=True)
+    ksft_eq(nc.stdout.strip(), test_string)
+
+def _schedule_checksum_reset(cfg, netnl) -> None:
+    features = ethtool(f"-k {cfg.ifname}", json=True)
+    setting = ""
+    for side in ["tx", "rx"]:
+        f = features[0][side + "-checksumming"]
+        if not f["fixed"]:
+            setting += " " + side
+            setting += " " + ("on" if f["requested"] or f["active"] else "off")
+    defer(ethtool, f" -K {cfg.ifname} " + setting)
+
+def _set_offload_checksum(cfg, netnl, on) -> None:
+    try:
+        ethtool(f" -K {cfg.ifname} rx {on} tx {on} ")
+    except:
+        return
+
+def _set_xdp_generic_sb_on(cfg) -> None:
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 1500", shell=True, host=cfg.remote)
+    cmd(f"ip link set dev {cfg.ifname} mtu 1500 xdpgeneric obj {prog} sec xdp", shell=True)
+    defer(cmd, f"ip link set dev {cfg.ifname} xdpgeneric off")
+
+    if no_sleep != True:
+        time.sleep(10)
+
+def _set_xdp_generic_mb_on(cfg) -> None:
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 9000", shell=True, host=cfg.remote)
+    defer(ip, f"link set dev {cfg.remote_ifname} mtu 1500", host=cfg.remote)
+    ip("link set dev %s mtu 9000 xdpgeneric obj %s sec xdp.frags" % (cfg.ifname, prog))
+    defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdpgeneric off")
+
+    if no_sleep != True:
+        time.sleep(10)
+
+def _set_xdp_native_sb_on(cfg) -> None:
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 1500", shell=True, host=cfg.remote)
+    cmd(f"ip -j link set dev {cfg.ifname} mtu 1500 xdp obj {prog} sec xdp", shell=True)
+    defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdp off")
+    xdp_info = ip("-d link show %s" % (cfg.ifname), json=True)[0]
+    if xdp_info['xdp']['mode'] != 1:
+        """
+        If the interface doesn't support native-mode, it falls back to generic mode.
+        The mode value 1 is native and 2 is generic.
+        So it raises an exception if mode is not 1(native mode).
+        """
+        raise KsftSkipEx('device does not support native-XDP')
+
+    if no_sleep != True:
+        time.sleep(10)
+
+def _set_xdp_native_mb_on(cfg) -> None:
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 9000", shell=True, host=cfg.remote)
+    defer(ip, f"link set dev {cfg.remote_ifname} mtu 1500", host=cfg.remote)
+    try:
+        cmd(f"ip link set dev {cfg.ifname} mtu 9000 xdp obj {prog} sec xdp.frags", shell=True)
+        defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdp off")
+    except Exception as e:
+        raise KsftSkipEx('device does not support native-multi-buffer XDP')
+
+    if no_sleep != True:
+        time.sleep(10)
+
+def _set_xdp_offload_on(cfg) -> None:
+    prog = cfg.net_lib_dir / "xdp_dummy.bpf.o"
+    cmd(f"ip link set dev {cfg.ifname} mtu 1500", shell=True)
+    try:
+        cmd(f"ip link set dev {cfg.ifname} xdpoffload obj {prog} sec xdp", shell=True)
+    except Exception as e:
+        raise KsftSkipEx('device does not support offloaded XDP')
+    defer(ip, f"link set dev {cfg.ifname} xdpoffload off")
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 1500", shell=True, host=cfg.remote)
+
+    if no_sleep != True:
+        time.sleep(10)
+
+def get_interface_info(cfg) -> None:
+    global no_sleep
+
+    if cfg.remote_ifname == "":
+        raise KsftFailEx('Can not get remote interface')
+    local_info = ip("-d link show %s" % (cfg.ifname), json=True)[0]
+    if 'parentbus' in local_info and local_info['parentbus'] == "netdevsim":
+        no_sleep=True
+    if 'linkinfo' in local_info and local_info['linkinfo']['info_kind'] == "veth":
+        no_sleep=True
+
+def set_interface_init(cfg) -> None:
+    cmd(f"ip link set dev {cfg.ifname} mtu 1500", shell=True)
+    cmd(f"ip link set dev {cfg.ifname} xdp off ", shell=True)
+    cmd(f"ip link set dev {cfg.ifname} xdpgeneric off ", shell=True)
+    cmd(f"ip link set dev {cfg.ifname} xdpoffload off", shell=True)
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu 1500", shell=True, host=cfg.remote)
+
+def test_default_v4(cfg, netnl) -> None:
+    cfg.require_ipver("4")
+
+    _schedule_checksum_reset(cfg, netnl)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v4(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v4(cfg)
+    _test_tcp(cfg)
+
+def test_default_v6(cfg, netnl) -> None:
+    cfg.require_ipver("6")
+
+    _schedule_checksum_reset(cfg, netnl)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v6(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def test_xdp_generic_sb(cfg, netnl) -> None:
+    _schedule_checksum_reset(cfg, netnl)
+    _set_xdp_generic_sb_on(cfg)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def test_xdp_generic_mb(cfg, netnl) -> None:
+    _schedule_checksum_reset(cfg, netnl)
+    _set_xdp_generic_mb_on(cfg)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def test_xdp_native_sb(cfg, netnl) -> None:
+    _schedule_checksum_reset(cfg, netnl)
+    _set_xdp_native_sb_on(cfg)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def test_xdp_native_mb(cfg, netnl) -> None:
+    _schedule_checksum_reset(cfg, netnl)
+    _set_xdp_native_mb_on(cfg)
+    _set_offload_checksum(cfg, netnl, "off")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+    _set_offload_checksum(cfg, netnl, "on")
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def test_xdp_offload(cfg, netnl) -> None:
+    _set_xdp_offload_on(cfg)
+    _test_v4(cfg)
+    _test_v6(cfg)
+    _test_tcp(cfg)
+
+def main() -> None:
+    with NetDrvEpEnv(__file__) as cfg:
+        get_interface_info(cfg)
+        set_interface_init(cfg)
+        ksft_run([test_default_v4,
+                  test_default_v6,
+                  test_xdp_generic_sb,
+                  test_xdp_generic_mb,
+                  test_xdp_native_sb,
+                  test_xdp_native_mb,
+                  test_xdp_offload],
+                 args=(cfg, EthtoolFamily()))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/psp.py b/tools/testing/selftests/drivers/net/psp.py
new file mode 100755
index 000000000000..06559ef49b9a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/psp.py
@@ -0,0 +1,640 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Test suite for PSP capable drivers."""
+
+import errno
+import fcntl
+import socket
+import struct
+import termios
+import time
+
+from lib.py import defer
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import ksft_true, ksft_eq, ksft_ne, ksft_gt, ksft_raises
+from lib.py import ksft_not_none
+from lib.py import KsftSkipEx
+from lib.py import NetDrvEpEnv, PSPFamily, NlError
+from lib.py import bkg, rand_port, wait_port_listen
+
+
+def _get_outq(s):
+    one = b'\0' * 4
+    outq = fcntl.ioctl(s.fileno(), termios.TIOCOUTQ, one)
+    return struct.unpack("I", outq)[0]
+
+
+def _send_with_ack(cfg, msg):
+    cfg.comm_sock.send(msg)
+    response = cfg.comm_sock.recv(4)
+    if response != b'ack\0':
+        raise RuntimeError("Unexpected server response", response)
+
+
+def _remote_read_len(cfg):
+    cfg.comm_sock.send(b'read len\0')
+    return int(cfg.comm_sock.recv(1024)[:-1].decode('utf-8'))
+
+
+def _make_clr_conn(cfg, ipver=None):
+    _send_with_ack(cfg, b'conn clr\0')
+    remote_addr = cfg.remote_addr_v[ipver] if ipver else cfg.remote_addr
+    s = socket.create_connection((remote_addr, cfg.comm_port), )
+    return s
+
+
+def _make_psp_conn(cfg, version=0, ipver=None):
+    _send_with_ack(cfg, b'conn psp\0' + struct.pack('BB', version, version))
+    remote_addr = cfg.remote_addr_v[ipver] if ipver else cfg.remote_addr
+    s = socket.create_connection((remote_addr, cfg.comm_port), )
+    return s
+
+
+def _close_conn(cfg, s):
+    _send_with_ack(cfg, b'data close\0')
+    s.close()
+
+
+def _close_psp_conn(cfg, s):
+    _close_conn(cfg, s)
+
+
+def _spi_xchg(s, rx):
+    s.send(struct.pack('I', rx['spi']) + rx['key'])
+    tx = s.recv(4 + len(rx['key']))
+    return {
+        'spi': struct.unpack('I', tx[:4])[0],
+        'key': tx[4:]
+    }
+
+
+def _send_careful(cfg, s, rounds):
+    data = b'0123456789' * 200
+    for i in range(rounds):
+        n = 0
+        for _ in range(10): # allow 10 retries
+            try:
+                n += s.send(data[n:], socket.MSG_DONTWAIT)
+                if n == len(data):
+                    break
+            except BlockingIOError:
+                time.sleep(0.05)
+        else:
+            rlen = _remote_read_len(cfg)
+            outq = _get_outq(s)
+            report = f'sent: {i * len(data) + n} remote len: {rlen} outq: {outq}'
+            raise RuntimeError(report)
+
+    return len(data) * rounds
+
+
+def _check_data_rx(cfg, exp_len):
+    read_len = -1
+    for _ in range(30):
+        cfg.comm_sock.send(b'read len\0')
+        read_len = int(cfg.comm_sock.recv(1024)[:-1].decode('utf-8'))
+        if read_len == exp_len:
+            break
+        time.sleep(0.01)
+    ksft_eq(read_len, exp_len)
+
+
+def _check_data_outq(s, exp_len, force_wait=False):
+    outq = 0
+    for _ in range(10):
+        outq = _get_outq(s)
+        if not force_wait and outq == exp_len:
+            break
+        time.sleep(0.01)
+    ksft_eq(outq, exp_len)
+
+
+def _get_stat(cfg, key):
+    return cfg.pspnl.get_stats({'dev-id': cfg.psp_dev_id})[key]
+
+#
+# Test case boiler plate
+#
+
+def _init_psp_dev(cfg):
+    if not hasattr(cfg, 'psp_dev_id'):
+        # Figure out which local device we are testing against
+        for dev in cfg.pspnl.dev_get({}, dump=True):
+            if dev['ifindex'] == cfg.ifindex:
+                cfg.psp_info = dev
+                cfg.psp_dev_id = cfg.psp_info['id']
+                break
+        else:
+            raise KsftSkipEx("No PSP devices found")
+
+    # Enable PSP if necessary
+    cap = cfg.psp_info['psp-versions-cap']
+    ena = cfg.psp_info['psp-versions-ena']
+    if cap != ena:
+        cfg.pspnl.dev_set({'id': cfg.psp_dev_id, 'psp-versions-ena': cap})
+        defer(cfg.pspnl.dev_set, {'id': cfg.psp_dev_id,
+                                  'psp-versions-ena': ena })
+
+#
+# Test cases
+#
+
+def dev_list_devices(cfg):
+    """ Dump all devices """
+    _init_psp_dev(cfg)
+
+    devices = cfg.pspnl.dev_get({}, dump=True)
+
+    found = False
+    for dev in devices:
+        found |= dev['id'] == cfg.psp_dev_id
+    ksft_true(found)
+
+
+def dev_get_device(cfg):
+    """ Get the device we intend to use """
+    _init_psp_dev(cfg)
+
+    dev = cfg.pspnl.dev_get({'id': cfg.psp_dev_id})
+    ksft_eq(dev['id'], cfg.psp_dev_id)
+
+
+def dev_get_device_bad(cfg):
+    """ Test getting device which doesn't exist """
+    raised = False
+    try:
+        cfg.pspnl.dev_get({'id': 1234567})
+    except NlError as e:
+        ksft_eq(e.nl_msg.error, -errno.ENODEV)
+        raised = True
+    ksft_true(raised)
+
+
+def dev_rotate(cfg):
+    """ Test key rotation """
+    _init_psp_dev(cfg)
+
+    prev_rotations = _get_stat(cfg, 'key-rotations')
+
+    rot = cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
+    ksft_eq(rot['id'], cfg.psp_dev_id)
+    rot = cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
+    ksft_eq(rot['id'], cfg.psp_dev_id)
+
+    cur_rotations = _get_stat(cfg, 'key-rotations')
+    ksft_eq(cur_rotations, prev_rotations + 2)
+
+
+def dev_rotate_spi(cfg):
+    """ Test key rotation and SPI check """
+    _init_psp_dev(cfg)
+
+    top_a = top_b = 0
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        assoc_a = cfg.pspnl.rx_assoc({"version": 0,
+                                     "dev-id": cfg.psp_dev_id,
+                                     "sock-fd": s.fileno()})
+        top_a = assoc_a['rx-key']['spi'] >> 31
+        s.close()
+    rot = cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        ksft_eq(rot['id'], cfg.psp_dev_id)
+        assoc_b = cfg.pspnl.rx_assoc({"version": 0,
+                                    "dev-id": cfg.psp_dev_id,
+                                    "sock-fd": s.fileno()})
+        top_b = assoc_b['rx-key']['spi'] >> 31
+        s.close()
+    ksft_ne(top_a, top_b)
+
+
+def assoc_basic(cfg):
+    """ Test creating associations """
+    _init_psp_dev(cfg)
+
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                  "dev-id": cfg.psp_dev_id,
+                                  "sock-fd": s.fileno()})
+        ksft_eq(assoc['dev-id'], cfg.psp_dev_id)
+        ksft_gt(assoc['rx-key']['spi'], 0)
+        ksft_eq(len(assoc['rx-key']['key']), 16)
+
+        assoc = cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                                  "version": 0,
+                                  "tx-key": assoc['rx-key'],
+                                  "sock-fd": s.fileno()})
+        ksft_eq(len(assoc), 0)
+        s.close()
+
+
+def assoc_bad_dev(cfg):
+    """ Test creating associations with bad device ID """
+    _init_psp_dev(cfg)
+
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        with ksft_raises(NlError) as cm:
+            cfg.pspnl.rx_assoc({"version": 0,
+                              "dev-id": cfg.psp_dev_id + 1234567,
+                              "sock-fd": s.fileno()})
+        ksft_eq(cm.exception.nl_msg.error, -errno.ENODEV)
+
+
+def assoc_sk_only_conn(cfg):
+    """ Test creating associations based on socket """
+    _init_psp_dev(cfg)
+
+    with _make_clr_conn(cfg) as s:
+        assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                  "sock-fd": s.fileno()})
+        ksft_eq(assoc['dev-id'], cfg.psp_dev_id)
+        cfg.pspnl.tx_assoc({"version": 0,
+                          "tx-key": assoc['rx-key'],
+                          "sock-fd": s.fileno()})
+        _close_conn(cfg, s)
+
+
+def assoc_sk_only_mismatch(cfg):
+    """ Test creating associations based on socket (dev mismatch) """
+    _init_psp_dev(cfg)
+
+    with _make_clr_conn(cfg) as s:
+        with ksft_raises(NlError) as cm:
+            cfg.pspnl.rx_assoc({"version": 0,
+                              "dev-id": cfg.psp_dev_id + 1234567,
+                              "sock-fd": s.fileno()})
+        the_exception = cm.exception
+        ksft_eq(the_exception.nl_msg.extack['bad-attr'], ".dev-id")
+        ksft_eq(the_exception.nl_msg.error, -errno.EINVAL)
+
+
+def assoc_sk_only_mismatch_tx(cfg):
+    """ Test creating associations based on socket (dev mismatch) """
+    _init_psp_dev(cfg)
+
+    with _make_clr_conn(cfg) as s:
+        with ksft_raises(NlError) as cm:
+            assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                      "sock-fd": s.fileno()})
+            cfg.pspnl.tx_assoc({"version": 0,
+                              "tx-key": assoc['rx-key'],
+                              "dev-id": cfg.psp_dev_id + 1234567,
+                              "sock-fd": s.fileno()})
+        the_exception = cm.exception
+        ksft_eq(the_exception.nl_msg.extack['bad-attr'], ".dev-id")
+        ksft_eq(the_exception.nl_msg.error, -errno.EINVAL)
+
+
+def assoc_sk_only_unconn(cfg):
+    """ Test creating associations based on socket (unconnected, should fail) """
+    _init_psp_dev(cfg)
+
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        with ksft_raises(NlError) as cm:
+            cfg.pspnl.rx_assoc({"version": 0,
+                              "sock-fd": s.fileno()})
+        the_exception = cm.exception
+        ksft_eq(the_exception.nl_msg.extack['miss-type'], "dev-id")
+        ksft_eq(the_exception.nl_msg.error, -errno.EINVAL)
+
+
+def assoc_version_mismatch(cfg):
+    """ Test creating associations where Rx and Tx PSP versions do not match """
+    _init_psp_dev(cfg)
+
+    versions = list(cfg.psp_info['psp-versions-cap'])
+    if len(versions) < 2:
+        raise KsftSkipEx("Not enough PSP versions supported by the device for the test")
+
+    # Translate versions to integers
+    versions = [cfg.pspnl.consts["version"].entries[v].value for v in versions]
+
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        rx = cfg.pspnl.rx_assoc({"version": versions[0],
+                                 "dev-id": cfg.psp_dev_id,
+                                 "sock-fd": s.fileno()})
+
+        for version in versions[1:]:
+            with ksft_raises(NlError) as cm:
+                cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                                    "version": version,
+                                    "tx-key": rx['rx-key'],
+                                    "sock-fd": s.fileno()})
+            the_exception = cm.exception
+            ksft_eq(the_exception.nl_msg.error, -errno.EINVAL)
+
+
+def assoc_twice(cfg):
+    """ Test reusing Tx assoc for two sockets """
+    _init_psp_dev(cfg)
+
+    def rx_assoc_check(s):
+        assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                  "dev-id": cfg.psp_dev_id,
+                                  "sock-fd": s.fileno()})
+        ksft_eq(assoc['dev-id'], cfg.psp_dev_id)
+        ksft_gt(assoc['rx-key']['spi'], 0)
+        ksft_eq(len(assoc['rx-key']['key']), 16)
+
+        return assoc
+
+    with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+        assoc = rx_assoc_check(s)
+        tx = cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                               "version": 0,
+                               "tx-key": assoc['rx-key'],
+                               "sock-fd": s.fileno()})
+        ksft_eq(len(tx), 0)
+
+        # Use the same Tx assoc second time
+        with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s2:
+            rx_assoc_check(s2)
+            tx = cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                                   "version": 0,
+                                   "tx-key": assoc['rx-key'],
+                                   "sock-fd": s2.fileno()})
+            ksft_eq(len(tx), 0)
+
+        s.close()
+
+
+def _data_basic_send(cfg, version, ipver):
+    """ Test basic data send """
+    _init_psp_dev(cfg)
+
+    # Version 0 is required by spec, don't let it skip
+    if version:
+        name = cfg.pspnl.consts["version"].entries_by_val[version].name
+        if name not in cfg.psp_info['psp-versions-cap']:
+            with socket.socket(socket.AF_INET6, socket.SOCK_STREAM) as s:
+                with ksft_raises(NlError) as cm:
+                    cfg.pspnl.rx_assoc({"version": version,
+                                        "dev-id": cfg.psp_dev_id,
+                                        "sock-fd": s.fileno()})
+                ksft_eq(cm.exception.nl_msg.error, -errno.EOPNOTSUPP)
+            raise KsftSkipEx("PSP version not supported", name)
+
+    s = _make_psp_conn(cfg, version, ipver)
+
+    rx_assoc = cfg.pspnl.rx_assoc({"version": version,
+                                   "dev-id": cfg.psp_dev_id,
+                                   "sock-fd": s.fileno()})
+    rx = rx_assoc['rx-key']
+    tx = _spi_xchg(s, rx)
+
+    cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                        "version": version,
+                        "tx-key": tx,
+                        "sock-fd": s.fileno()})
+
+    data_len = _send_careful(cfg, s, 100)
+    _check_data_rx(cfg, data_len)
+    _close_psp_conn(cfg, s)
+
+
+def __bad_xfer_do(cfg, s, tx, version='hdr0-aes-gcm-128'):
+    # Make sure we accept the ACK for the SPI before we seal with the bad assoc
+    _check_data_outq(s, 0)
+
+    cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                        "version": version,
+                        "tx-key": tx,
+                        "sock-fd": s.fileno()})
+
+    data_len = _send_careful(cfg, s, 20)
+    _check_data_outq(s, data_len, force_wait=True)
+    _check_data_rx(cfg, 0)
+    _close_psp_conn(cfg, s)
+
+
+def data_send_bad_key(cfg):
+    """ Test send data with bad key """
+    _init_psp_dev(cfg)
+
+    s = _make_psp_conn(cfg)
+
+    rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                   "dev-id": cfg.psp_dev_id,
+                                   "sock-fd": s.fileno()})
+    rx = rx_assoc['rx-key']
+    tx = _spi_xchg(s, rx)
+    tx['key'] = (tx['key'][0] ^ 0xff).to_bytes(1, 'little') + tx['key'][1:]
+    __bad_xfer_do(cfg, s, tx)
+
+
+def data_send_disconnect(cfg):
+    """ Test socket close after sending data """
+    _init_psp_dev(cfg)
+
+    with _make_psp_conn(cfg) as s:
+        assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                  "sock-fd": s.fileno()})
+        tx = _spi_xchg(s, assoc['rx-key'])
+        cfg.pspnl.tx_assoc({"version": 0,
+                          "tx-key": tx,
+                          "sock-fd": s.fileno()})
+
+        data_len = _send_careful(cfg, s, 100)
+        _check_data_rx(cfg, data_len)
+
+        s.shutdown(socket.SHUT_RDWR)
+        s.close()
+
+
+def _data_mss_adjust(cfg, ipver):
+    _init_psp_dev(cfg)
+
+    # First figure out what the MSS would be without any adjustments
+    s = _make_clr_conn(cfg, ipver)
+    s.send(b"0123456789abcdef" * 1024)
+    _check_data_rx(cfg, 16 * 1024)
+    mss = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_MAXSEG)
+    _close_conn(cfg, s)
+
+    s = _make_psp_conn(cfg, 0, ipver)
+    try:
+        rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                     "dev-id": cfg.psp_dev_id,
+                                     "sock-fd": s.fileno()})
+        rx = rx_assoc['rx-key']
+        tx = _spi_xchg(s, rx)
+
+        rxmss = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_MAXSEG)
+        ksft_eq(mss, rxmss)
+
+        cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                          "version": 0,
+                          "tx-key": tx,
+                          "sock-fd": s.fileno()})
+
+        txmss = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_MAXSEG)
+        ksft_eq(mss, txmss + 40)
+
+        data_len = _send_careful(cfg, s, 100)
+        _check_data_rx(cfg, data_len)
+        _check_data_outq(s, 0)
+
+        txmss = s.getsockopt(socket.IPPROTO_TCP, socket.TCP_MAXSEG)
+        ksft_eq(mss, txmss + 40)
+    finally:
+        _close_psp_conn(cfg, s)
+
+
+def data_stale_key(cfg):
+    """ Test send on a double-rotated key """
+    _init_psp_dev(cfg)
+
+    prev_stale = _get_stat(cfg, 'stale-events')
+    s = _make_psp_conn(cfg)
+    try:
+        rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                     "dev-id": cfg.psp_dev_id,
+                                     "sock-fd": s.fileno()})
+        rx = rx_assoc['rx-key']
+        tx = _spi_xchg(s, rx)
+
+        cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                          "version": 0,
+                          "tx-key": tx,
+                          "sock-fd": s.fileno()})
+
+        data_len = _send_careful(cfg, s, 100)
+        _check_data_rx(cfg, data_len)
+        _check_data_outq(s, 0)
+
+        cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
+        cfg.pspnl.key_rotate({"id": cfg.psp_dev_id})
+
+        cur_stale = _get_stat(cfg, 'stale-events')
+        ksft_gt(cur_stale, prev_stale)
+
+        s.send(b'0123456789' * 200)
+        _check_data_outq(s, 2000, force_wait=True)
+    finally:
+        _close_psp_conn(cfg, s)
+
+
+def __nsim_psp_rereg(cfg):
+    # The PSP dev ID will change, remember what was there before
+    before = set([x['id'] for x in cfg.pspnl.dev_get({}, dump=True)])
+
+    cfg._ns.nsims[0].dfs_write('psp_rereg', '1')
+
+    after = set([x['id'] for x in cfg.pspnl.dev_get({}, dump=True)])
+
+    new_devs = list(after - before)
+    ksft_eq(len(new_devs), 1)
+    cfg.psp_dev_id = list(after - before)[0]
+
+
+def removal_device_rx(cfg):
+    """ Test removing a netdev / PSD with active Rx assoc """
+
+    # We could technically devlink reload real devices, too
+    # but that kills the control socket. So test this on
+    # netdevsim only for now
+    cfg.require_nsim()
+
+    s = _make_clr_conn(cfg)
+    try:
+        rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                       "dev-id": cfg.psp_dev_id,
+                                       "sock-fd": s.fileno()})
+        ksft_not_none(rx_assoc)
+
+        __nsim_psp_rereg(cfg)
+    finally:
+        _close_conn(cfg, s)
+
+
+def removal_device_bi(cfg):
+    """ Test removing a netdev / PSD with active Rx/Tx assoc """
+
+    # We could technically devlink reload real devices, too
+    # but that kills the control socket. So test this on
+    # netdevsim only for now
+    cfg.require_nsim()
+
+    s = _make_clr_conn(cfg)
+    try:
+        rx_assoc = cfg.pspnl.rx_assoc({"version": 0,
+                                       "dev-id": cfg.psp_dev_id,
+                                       "sock-fd": s.fileno()})
+        cfg.pspnl.tx_assoc({"dev-id": cfg.psp_dev_id,
+                            "version": 0,
+                            "tx-key": rx_assoc['rx-key'],
+                            "sock-fd": s.fileno()})
+        __nsim_psp_rereg(cfg)
+    finally:
+        _close_conn(cfg, s)
+
+
+def psp_ip_ver_test_builder(name, test_func, psp_ver, ipver):
+    """Build test cases for each combo of PSP version and IP version"""
+    def test_case(cfg):
+        cfg.require_ipver(ipver)
+        test_case.__name__ = f"{name}_v{psp_ver}_ip{ipver}"
+        test_func(cfg, psp_ver, ipver)
+    return test_case
+
+
+def ipver_test_builder(name, test_func, ipver):
+    """Build test cases for each IP version"""
+    def test_case(cfg):
+        cfg.require_ipver(ipver)
+        test_case.__name__ = f"{name}_ip{ipver}"
+        test_func(cfg, ipver)
+    return test_case
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.pspnl = PSPFamily()
+
+        # Set up responder and communication sock
+        responder = cfg.remote.deploy("psp_responder")
+
+        cfg.comm_port = rand_port()
+        srv = None
+        try:
+            with bkg(responder + f" -p {cfg.comm_port}", host=cfg.remote,
+                     exit_wait=True) as srv:
+                wait_port_listen(cfg.comm_port, host=cfg.remote)
+
+                cfg.comm_sock = socket.create_connection((cfg.remote_addr,
+                                                          cfg.comm_port),
+                                                         timeout=1)
+
+                cases = [
+                    psp_ip_ver_test_builder(
+                        "data_basic_send", _data_basic_send, version, ipver
+                    )
+                    for version in range(0, 4)
+                    for ipver in ("4", "6")
+                ]
+                cases += [
+                    ipver_test_builder("data_mss_adjust", _data_mss_adjust, ipver)
+                    for ipver in ("4", "6")
+                ]
+
+                ksft_run(cases=cases, globs=globals(),
+                         case_pfx={"dev_", "data_", "assoc_", "removal_"},
+                         args=(cfg, ))
+
+                cfg.comm_sock.send(b"exit\0")
+                cfg.comm_sock.close()
+        finally:
+            if srv and (srv.stdout or srv.stderr):
+                ksft_pr("")
+                ksft_pr(f"Responder logs ({srv.ret}):")
+            if srv and srv.stdout:
+                ksft_pr("STDOUT:\n#  " + srv.stdout.strip().replace("\n", "\n#  "))
+            if srv and srv.stderr:
+                ksft_pr("STDERR:\n#  " + srv.stderr.strip().replace("\n", "\n#  "))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/psp_responder.c b/tools/testing/selftests/drivers/net/psp_responder.c
new file mode 100644
index 000000000000..f309e0d73cbf
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/psp_responder.c
@@ -0,0 +1,483 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <string.h>
+#include <sys/poll.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <unistd.h>
+
+#include <ynl.h>
+
+#include "psp-user.h"
+
+#define dbg(msg...)				\
+do {						\
+	if (opts->verbose)			\
+		fprintf(stderr, "DEBUG: " msg);	\
+} while (0)
+
+static bool should_quit;
+
+struct opts {
+	int port;
+	int devid;
+	bool verbose;
+};
+
+enum accept_cfg {
+	ACCEPT_CFG_NONE = 0,
+	ACCEPT_CFG_CLEAR,
+	ACCEPT_CFG_PSP,
+};
+
+static struct {
+	unsigned char tx;
+	unsigned char rx;
+} psp_vers;
+
+static int conn_setup_psp(struct ynl_sock *ys, struct opts *opts, int data_sock)
+{
+	struct psp_rx_assoc_rsp *rsp;
+	struct psp_rx_assoc_req *req;
+	struct psp_tx_assoc_rsp *tsp;
+	struct psp_tx_assoc_req *teq;
+	char info[300];
+	int key_len;
+	ssize_t sz;
+	__u32 spi;
+
+	dbg("create PSP connection\n");
+
+	// Rx assoc alloc
+	req = psp_rx_assoc_req_alloc();
+
+	psp_rx_assoc_req_set_sock_fd(req, data_sock);
+	psp_rx_assoc_req_set_version(req, psp_vers.rx);
+
+	rsp = psp_rx_assoc(ys, req);
+	psp_rx_assoc_req_free(req);
+
+	if (!rsp) {
+		perror("ERROR: failed to Rx assoc");
+		return -1;
+	}
+
+	// SPI exchange
+	key_len = rsp->rx_key._len.key;
+	memcpy(info, &rsp->rx_key.spi, sizeof(spi));
+	memcpy(&info[sizeof(spi)], rsp->rx_key.key, key_len);
+	sz = sizeof(spi) + key_len;
+
+	send(data_sock, info, sz, MSG_WAITALL);
+	psp_rx_assoc_rsp_free(rsp);
+
+	sz = recv(data_sock, info, sz, MSG_WAITALL);
+	if (sz < 0) {
+		perror("ERROR: failed to read PSP key from sock");
+		return -1;
+	}
+	memcpy(&spi, info, sizeof(spi));
+
+	// Setup Tx assoc
+	teq = psp_tx_assoc_req_alloc();
+
+	psp_tx_assoc_req_set_sock_fd(teq, data_sock);
+	psp_tx_assoc_req_set_version(teq, psp_vers.tx);
+	psp_tx_assoc_req_set_tx_key_spi(teq, spi);
+	psp_tx_assoc_req_set_tx_key_key(teq, &info[sizeof(spi)], key_len);
+
+	tsp = psp_tx_assoc(ys, teq);
+	psp_tx_assoc_req_free(teq);
+	if (!tsp) {
+		perror("ERROR: failed to Tx assoc");
+		return -1;
+	}
+	psp_tx_assoc_rsp_free(tsp);
+
+	return 0;
+}
+
+static void send_ack(int sock)
+{
+	send(sock, "ack", 4, MSG_WAITALL);
+}
+
+static void send_err(int sock)
+{
+	send(sock, "err", 4, MSG_WAITALL);
+}
+
+static void send_str(int sock, int value)
+{
+	char buf[128];
+	int ret;
+
+	ret = snprintf(buf, sizeof(buf), "%d", value);
+	send(sock, buf, ret + 1, MSG_WAITALL);
+}
+
+static void
+run_session(struct ynl_sock *ys, struct opts *opts,
+	    int server_sock, int comm_sock)
+{
+	enum accept_cfg accept_cfg = ACCEPT_CFG_NONE;
+	struct pollfd pfds[3];
+	size_t data_read = 0;
+	int data_sock = -1;
+
+	while (true) {
+		bool race_close = false;
+		int nfds;
+
+		memset(pfds, 0, sizeof(pfds));
+
+		pfds[0].fd = server_sock;
+		pfds[0].events = POLLIN;
+
+		pfds[1].fd = comm_sock;
+		pfds[1].events = POLLIN;
+
+		nfds = 2;
+		if (data_sock >= 0) {
+			pfds[2].fd = data_sock;
+			pfds[2].events = POLLIN;
+			nfds++;
+		}
+
+		dbg(" ...\n");
+		if (poll(pfds, nfds, -1) < 0) {
+			perror("poll");
+			break;
+		}
+
+		/* data sock */
+		if (pfds[2].revents & POLLIN) {
+			char buf[8192];
+			ssize_t n;
+
+			n = recv(data_sock, buf, sizeof(buf), 0);
+			if (n <= 0) {
+				if (n < 0)
+					perror("data read");
+				close(data_sock);
+				data_sock = -1;
+				dbg("data sock closed\n");
+			} else {
+				data_read += n;
+				dbg("data read %zd\n", data_read);
+			}
+		}
+
+		/* comm sock */
+		if (pfds[1].revents & POLLIN) {
+			static char buf[4096];
+			static ssize_t off;
+			bool consumed;
+			ssize_t n;
+
+			n = recv(comm_sock, &buf[off], sizeof(buf) - off, 0);
+			if (n <= 0) {
+				if (n < 0)
+					perror("comm read");
+				return;
+			}
+
+			off += n;
+			n = off;
+
+#define __consume(sz)						\
+		({						\
+			if (n == (sz)) {			\
+				off = 0;			\
+			} else {				\
+				off -= (sz);			\
+				memmove(buf, &buf[(sz)], off);	\
+			}					\
+		})
+
+#define cmd(_name)							\
+		({							\
+			ssize_t sz = sizeof(_name);			\
+			bool match = n >= sz &&	!memcmp(buf, _name, sz); \
+									\
+			if (match) {					\
+				dbg("command: " _name "\n");		\
+				__consume(sz);				\
+			}						\
+			consumed |= match;				\
+			match;						\
+		})
+
+			do {
+				consumed = false;
+
+				if (cmd("read len"))
+					send_str(comm_sock, data_read);
+
+				if (cmd("data echo")) {
+					if (data_sock >= 0)
+						send(data_sock, "echo", 5,
+						     MSG_WAITALL);
+					else
+						fprintf(stderr, "WARN: echo but no data sock\n");
+					send_ack(comm_sock);
+				}
+				if (cmd("data close")) {
+					if (data_sock >= 0) {
+						close(data_sock);
+						data_sock = -1;
+						send_ack(comm_sock);
+					} else {
+						race_close = true;
+					}
+				}
+				if (cmd("conn psp")) {
+					if (accept_cfg != ACCEPT_CFG_NONE)
+						fprintf(stderr, "WARN: old conn config still set!\n");
+					accept_cfg = ACCEPT_CFG_PSP;
+					send_ack(comm_sock);
+					/* next two bytes are versions */
+					if (off >= 2) {
+						memcpy(&psp_vers, buf, 2);
+						__consume(2);
+					} else {
+						fprintf(stderr, "WARN: short conn psp command!\n");
+					}
+				}
+				if (cmd("conn clr")) {
+					if (accept_cfg != ACCEPT_CFG_NONE)
+						fprintf(stderr, "WARN: old conn config still set!\n");
+					accept_cfg = ACCEPT_CFG_CLEAR;
+					send_ack(comm_sock);
+				}
+				if (cmd("exit"))
+					should_quit = true;
+#undef cmd
+
+				if (!consumed) {
+					fprintf(stderr, "WARN: unknown cmd: [%zd] %s\n",
+						off, buf);
+				}
+			} while (consumed && off);
+		}
+
+		/* server sock */
+		if (pfds[0].revents & POLLIN) {
+			if (data_sock >= 0) {
+				fprintf(stderr, "WARN: new data sock but old one still here\n");
+				close(data_sock);
+				data_sock = -1;
+			}
+			data_sock = accept(server_sock, NULL, NULL);
+			if (data_sock < 0) {
+				perror("accept");
+				continue;
+			}
+			data_read = 0;
+
+			if (accept_cfg == ACCEPT_CFG_CLEAR) {
+				dbg("new data sock: clear\n");
+				/* nothing to do */
+			} else if (accept_cfg == ACCEPT_CFG_PSP) {
+				dbg("new data sock: psp\n");
+				conn_setup_psp(ys, opts, data_sock);
+			} else {
+				fprintf(stderr, "WARN: new data sock but no config\n");
+			}
+			accept_cfg = ACCEPT_CFG_NONE;
+		}
+
+		if (race_close) {
+			if (data_sock >= 0) {
+				/* indeed, ordering problem, handle the close */
+				close(data_sock);
+				data_sock = -1;
+				send_ack(comm_sock);
+			} else {
+				fprintf(stderr, "WARN: close but no data sock\n");
+				send_err(comm_sock);
+			}
+		}
+	}
+	dbg("session ending\n");
+}
+
+static int spawn_server(struct opts *opts)
+{
+	struct sockaddr_in6 addr;
+	int fd;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd < 0) {
+		perror("can't open socket");
+		return -1;
+	}
+
+	memset(&addr, 0, sizeof(addr));
+
+	addr.sin6_family = AF_INET6;
+	addr.sin6_addr = in6addr_any;
+	addr.sin6_port = htons(opts->port);
+
+	if (bind(fd, (struct sockaddr *)&addr, sizeof(addr))) {
+		perror("can't bind socket");
+		return -1;
+	}
+
+	if (listen(fd, 5)) {
+		perror("can't listen");
+		return -1;
+	}
+
+	return fd;
+}
+
+static int run_responder(struct ynl_sock *ys, struct opts *opts)
+{
+	int server_sock, comm;
+
+	server_sock = spawn_server(opts);
+	if (server_sock < 0)
+		return 4;
+
+	while (!should_quit) {
+		comm = accept(server_sock, NULL, NULL);
+		if (comm < 0) {
+			perror("accept failed");
+		} else {
+			run_session(ys, opts, server_sock, comm);
+			close(comm);
+		}
+	}
+
+	return 0;
+}
+
+static void usage(const char *name, const char *miss)
+{
+	if (miss)
+		fprintf(stderr, "Missing argument: %s\n", miss);
+
+	fprintf(stderr, "Usage: %s -p port [-v] [-d psp-dev-id]\n", name);
+	exit(EXIT_FAILURE);
+}
+
+static void parse_cmd_opts(int argc, char **argv, struct opts *opts)
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "vp:d:")) != -1) {
+		switch (opt) {
+		case 'v':
+			opts->verbose = 1;
+			break;
+		case 'p':
+			opts->port = atoi(optarg);
+			break;
+		case 'd':
+			opts->devid = atoi(optarg);
+			break;
+		default:
+			usage(argv[0], NULL);
+		}
+	}
+}
+
+static int psp_dev_set_ena(struct ynl_sock *ys, __u32 dev_id, __u32 versions)
+{
+	struct psp_dev_set_req *sreq;
+	struct psp_dev_set_rsp *srsp;
+
+	fprintf(stderr, "Set PSP enable on device %d to 0x%x\n",
+		dev_id, versions);
+
+	sreq = psp_dev_set_req_alloc();
+
+	psp_dev_set_req_set_id(sreq, dev_id);
+	psp_dev_set_req_set_psp_versions_ena(sreq, versions);
+
+	srsp = psp_dev_set(ys, sreq);
+	psp_dev_set_req_free(sreq);
+	if (!srsp)
+		return 10;
+
+	psp_dev_set_rsp_free(srsp);
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	struct psp_dev_get_list *dev_list;
+	bool devid_found = false;
+	__u32 ver_ena, ver_cap;
+	struct opts opts = {};
+	struct ynl_error yerr;
+	struct ynl_sock *ys;
+	int first_id = 0;
+	int ret;
+
+	parse_cmd_opts(argc, argv, &opts);
+	if (!opts.port)
+		usage(argv[0], "port"); // exits
+
+	ys = ynl_sock_create(&ynl_psp_family, &yerr);
+	if (!ys) {
+		fprintf(stderr, "YNL: %s\n", yerr.msg);
+		return 1;
+	}
+
+	dev_list = psp_dev_get_dump(ys);
+	if (ynl_dump_empty(dev_list)) {
+		if (ys->err.code)
+			goto err_close;
+		fprintf(stderr, "No PSP devices\n");
+		goto err_close_silent;
+	}
+
+	ynl_dump_foreach(dev_list, d) {
+		if (opts.devid) {
+			devid_found = true;
+			ver_ena = d->psp_versions_ena;
+			ver_cap = d->psp_versions_cap;
+		} else if (!first_id) {
+			first_id = d->id;
+			ver_ena = d->psp_versions_ena;
+			ver_cap = d->psp_versions_cap;
+		} else {
+			fprintf(stderr, "Multiple PSP devices found\n");
+			goto err_close_silent;
+		}
+	}
+	psp_dev_get_list_free(dev_list);
+
+	if (opts.devid && !devid_found) {
+		fprintf(stderr, "PSP device %d requested on cmdline, not found\n",
+			opts.devid);
+		goto err_close_silent;
+	} else if (!opts.devid) {
+		opts.devid = first_id;
+	}
+
+	if (ver_ena != ver_cap) {
+		ret = psp_dev_set_ena(ys, opts.devid, ver_cap);
+		if (ret)
+			goto err_close;
+	}
+
+	ret = run_responder(ys, &opts);
+
+	if (ver_ena != ver_cap && psp_dev_set_ena(ys, opts.devid, ver_ena))
+		fprintf(stderr, "WARN: failed to set the PSP versions back\n");
+
+	ynl_sock_destroy(ys);
+
+	return ret;
+
+err_close:
+	fprintf(stderr, "YNL: %s\n", ys->err.msg);
+err_close_silent:
+	ynl_sock_destroy(ys);
+	return 2;
+}
diff --git a/tools/testing/selftests/drivers/net/queues.py b/tools/testing/selftests/drivers/net/queues.py
new file mode 100755
index 000000000000..236005290a33
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/queues.py
@@ -0,0 +1,125 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_disruptive, ksft_exit, ksft_run
+from lib.py import ksft_eq, ksft_not_in, ksft_raises, KsftSkipEx, KsftFailEx
+from lib.py import EthtoolFamily, NetdevFamily, NlError
+from lib.py import NetDrvEnv
+from lib.py import bkg, cmd, defer, ip
+import errno
+import glob
+import os
+import socket
+import struct
+
+def sys_get_queues(ifname, qtype='rx') -> int:
+    folders = glob.glob(f'/sys/class/net/{ifname}/queues/{qtype}-*')
+    return len(folders)
+
+
+def nl_get_queues(cfg, nl, qtype='rx'):
+    queues = nl.queue_get({'ifindex': cfg.ifindex}, dump=True)
+    if queues:
+        return len([q for q in queues if q['type'] == qtype])
+    return None
+
+
+def check_xsk(cfg, nl, xdp_queue_id=0) -> None:
+    # Probe for support
+    xdp = cmd(f'{cfg.net_lib_dir / "xdp_helper"} - -', fail=False)
+    if xdp.ret == 255:
+        raise KsftSkipEx('AF_XDP unsupported')
+    elif xdp.ret > 0:
+        raise KsftFailEx('unable to create AF_XDP socket')
+
+    with bkg(f'{cfg.net_lib_dir / "xdp_helper"} {cfg.ifindex} {xdp_queue_id}',
+             ksft_wait=3):
+
+        rx = tx = False
+
+        queues = nl.queue_get({'ifindex': cfg.ifindex}, dump=True)
+        if not queues:
+            raise KsftSkipEx("Netlink reports no queues")
+
+        for q in queues:
+            if q['id'] == 0:
+                if q['type'] == 'rx':
+                    rx = True
+                if q['type'] == 'tx':
+                    tx = True
+
+                ksft_eq(q.get('xsk', None), {},
+                        comment="xsk attr on queue we configured")
+            else:
+                ksft_not_in('xsk', q,
+                            comment="xsk attr on queue we didn't configure")
+
+        ksft_eq(rx, True)
+        ksft_eq(tx, True)
+
+
+def get_queues(cfg, nl) -> None:
+    snl = NetdevFamily(recv_size=4096)
+
+    for qtype in ['rx', 'tx']:
+        queues = nl_get_queues(cfg, snl, qtype)
+        if not queues:
+            raise KsftSkipEx('queue-get not supported by device')
+
+        expected = sys_get_queues(cfg.dev['ifname'], qtype)
+        ksft_eq(queues, expected)
+
+
+def addremove_queues(cfg, nl) -> None:
+    queues = nl_get_queues(cfg, nl)
+    if not queues:
+        raise KsftSkipEx('queue-get not supported by device')
+
+    curr_queues = sys_get_queues(cfg.dev['ifname'])
+    if curr_queues == 1:
+        raise KsftSkipEx('cannot decrement queue: already at 1')
+
+    netnl = EthtoolFamily()
+    channels = netnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+    rx_type = 'rx'
+    if channels.get('combined-count', 0) > 0:
+            rx_type = 'combined'
+
+    expected = curr_queues - 1
+    cmd(f"ethtool -L {cfg.dev['ifname']} {rx_type} {expected}", timeout=10)
+    queues = nl_get_queues(cfg, nl)
+    ksft_eq(queues, expected)
+
+    expected = curr_queues
+    cmd(f"ethtool -L {cfg.dev['ifname']} {rx_type} {expected}", timeout=10)
+    queues = nl_get_queues(cfg, nl)
+    ksft_eq(queues, expected)
+
+
+@ksft_disruptive
+def check_down(cfg, nl) -> None:
+    # Check the NAPI IDs before interface goes down and hides them
+    napis = nl.napi_get({'ifindex': cfg.ifindex}, dump=True)
+
+    ip(f"link set dev {cfg.dev['ifname']} down")
+    defer(ip, f"link set dev {cfg.dev['ifname']} up")
+
+    with ksft_raises(NlError) as cm:
+        nl.queue_get({'ifindex': cfg.ifindex, 'id': 0, 'type': 'rx'})
+    ksft_eq(cm.exception.nl_msg.error, -errno.ENOENT)
+
+    if napis:
+        with ksft_raises(NlError) as cm:
+            nl.napi_get({'id': napis[0]['id']})
+        ksft_eq(cm.exception.nl_msg.error, -errno.ENOENT)
+
+
+def main() -> None:
+    with NetDrvEnv(__file__, queue_count=100) as cfg:
+        ksft_run([get_queues, addremove_queues, check_down, check_xsk],
+                 args=(cfg, NetdevFamily()))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/ring_reconfig.py b/tools/testing/selftests/drivers/net/ring_reconfig.py
new file mode 100755
index 000000000000..f9530a8b0856
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/ring_reconfig.py
@@ -0,0 +1,167 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Test channel and ring size configuration via ethtool (-L / -G).
+"""
+
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import ksft_eq
+from lib.py import NetDrvEpEnv, EthtoolFamily, GenerateTraffic
+from lib.py import defer, NlError
+
+
+def channels(cfg) -> None:
+    """
+    Twiddle channel counts in various combinations of parameters.
+    We're only looking for driver adhering to the requested config
+    if the config is accepted and crashes.
+    """
+    ehdr = {'header':{'dev-index': cfg.ifindex}}
+    chans = cfg.eth.channels_get(ehdr)
+
+    all_keys = ["rx", "tx", "combined"]
+    mixes = [{"combined"}, {"rx", "tx"}, {"rx", "combined"}, {"tx", "combined"},
+             {"rx", "tx", "combined"},]
+
+    # Get the set of keys that device actually supports
+    restore = {}
+    supported = set()
+    for key in all_keys:
+        if key + "-max" in chans:
+            supported.add(key)
+            restore |= {key + "-count": chans[key + "-count"]}
+
+    defer(cfg.eth.channels_set, ehdr | restore)
+
+    def test_config(config):
+        try:
+            cfg.eth.channels_set(ehdr | config)
+            get = cfg.eth.channels_get(ehdr)
+            for k, v in config.items():
+                ksft_eq(get.get(k, 0), v)
+        except NlError as e:
+            failed.append(mix)
+            ksft_pr("Can't set", config, e)
+        else:
+            ksft_pr("Okay", config)
+
+    failed = []
+    for mix in mixes:
+        if not mix.issubset(supported):
+            continue
+
+        # Set all the values in the mix to 1, other supported to 0
+        config = {}
+        for key in all_keys:
+            config[key + "-count"] = 1 if key in mix else 0
+        test_config(config)
+
+    for mix in mixes:
+        if not mix.issubset(supported):
+            continue
+        if mix in failed:
+            continue
+
+        # Set all the values in the mix to max, other supported to 0
+        config = {}
+        for key in all_keys:
+            config[key + "-count"] = chans[key + '-max'] if key in mix else 0
+        test_config(config)
+
+
+def _configure_min_ring_cnt(cfg) -> None:
+    """ Try to configure a single Rx/Tx ring. """
+    ehdr = {'header':{'dev-index': cfg.ifindex}}
+    chans = cfg.eth.channels_get(ehdr)
+
+    all_keys = ["rx-count", "tx-count", "combined-count"]
+    restore = {}
+    config = {}
+    for key in all_keys:
+        if key in chans:
+            restore[key] = chans[key]
+            config[key] = 0
+
+    if chans.get('combined-count', 0) > 1:
+        config['combined-count'] = 1
+    elif chans.get('rx-count', 0) > 1 and chans.get('tx-count', 0) > 1:
+        config['tx-count'] = 1
+        config['rx-count'] = 1
+    else:
+        # looks like we're already on 1 channel
+        return
+
+    cfg.eth.channels_set(ehdr | config)
+    defer(cfg.eth.channels_set, ehdr | restore)
+
+
+def ringparam(cfg) -> None:
+    """
+    Tweak the ringparam configuration. Try to run some traffic over min
+    ring size to make sure it actually functions.
+    """
+    ehdr = {'header':{'dev-index': cfg.ifindex}}
+    rings = cfg.eth.rings_get(ehdr)
+
+    restore = {}
+    maxes = {}
+    params = set()
+    for key in rings.keys():
+        if 'max' in key:
+            param = key[:-4]
+            maxes[param] = rings[key]
+            params.add(param)
+            restore[param] = rings[param]
+
+    defer(cfg.eth.rings_set, ehdr | restore)
+
+    # Speed up the reconfig by configuring just one ring
+    _configure_min_ring_cnt(cfg)
+
+    # Try to reach min on all settings
+    for param in params:
+        val = rings[param]
+        while True:
+            try:
+                cfg.eth.rings_set({'header':{'dev-index': cfg.ifindex},
+                                   param: val // 2})
+                if val == 0:
+                    break
+                val //= 2
+            except NlError:
+                break
+
+        get = cfg.eth.rings_get(ehdr)
+        ksft_eq(get[param], val)
+
+        ksft_pr(f"Reached min for '{param}' at {val} (max {rings[param]})")
+
+    GenerateTraffic(cfg).wait_pkts_and_stop(10000)
+
+    # Try max across all params, if the driver supports large rings
+    # this may OOM so we ignore errors
+    try:
+        ksft_pr("Applying max settings")
+        config = {p: maxes[p] for p in params}
+        cfg.eth.rings_set(ehdr | config)
+    except NlError as e:
+        ksft_pr("Can't set max params", config, e)
+    else:
+        GenerateTraffic(cfg).wait_pkts_and_stop(10000)
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.eth = EthtoolFamily()
+
+        ksft_run([channels,
+                  ringparam],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/shaper.py b/tools/testing/selftests/drivers/net/shaper.py
new file mode 100755
index 000000000000..11310f19bfa0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/shaper.py
@@ -0,0 +1,461 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_true, KsftSkipEx
+from lib.py import EthtoolFamily, NetshaperFamily
+from lib.py import NetDrvEnv
+from lib.py import NlError
+from lib.py import cmd
+
+def get_shapers(cfg, nl_shaper) -> None:
+    try:
+        shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+
+    # Default configuration: no shapers configured.
+    ksft_eq(len(shapers), 0)
+
+def get_caps(cfg, nl_shaper) -> None:
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex}, dump=True)
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+
+    # Each device implementing shaper support must support some
+    # features in at least a scope.
+    ksft_true(len(caps)> 0)
+
+def set_qshapers(cfg, nl_shaper) -> None:
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                 'scope':'queue'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+    if not 'support-bw-max' in caps or not 'support-metric-bps' in caps:
+        raise KsftSkipEx("device does not support queue scope shapers with bw_max and metric bps")
+
+    cfg.queues = True;
+    netnl = EthtoolFamily()
+    channels = netnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+    if channels['combined-count'] == 0:
+        cfg.rx_type = 'rx'
+        cfg.nr_queues = channels['rx-count']
+    else:
+        cfg.rx_type = 'combined'
+        cfg.nr_queues = channels['combined-count']
+    if cfg.nr_queues < 3:
+        raise KsftSkipEx(f"device does not support enough queues min 3 found {cfg.nr_queues}")
+
+    nl_shaper.set({'ifindex': cfg.ifindex,
+                   'handle': {'scope': 'queue', 'id': 1},
+                   'metric': 'bps',
+                   'bw-max': 10000})
+    nl_shaper.set({'ifindex': cfg.ifindex,
+                   'handle': {'scope': 'queue', 'id': 2},
+                   'metric': 'bps',
+                   'bw-max': 20000})
+
+    # Querying a specific shaper not yet configured must fail.
+    raised = False
+    try:
+        shaper_q0 = nl_shaper.get({'ifindex': cfg.ifindex,
+                                   'handle': {'scope': 'queue', 'id': 0}})
+    except (NlError):
+        raised = True
+    ksft_eq(raised, True)
+
+    shaper_q1 = nl_shaper.get({'ifindex': cfg.ifindex,
+                              'handle': {'scope': 'queue', 'id': 1}})
+    ksft_eq(shaper_q1, {'ifindex': cfg.ifindex,
+                        'parent': {'scope': 'netdev'},
+                        'handle': {'scope': 'queue', 'id': 1},
+                        'metric': 'bps',
+                        'bw-max': 10000})
+
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'metric': 'bps',
+                       'bw-max': 10000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 2},
+                       'metric': 'bps',
+                       'bw-max': 20000}])
+
+def del_qshapers(cfg, nl_shaper) -> None:
+    if not cfg.queues:
+        raise KsftSkipEx("queue shapers not supported by device, skipping delete")
+
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 2}})
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 1}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(len(shapers), 0)
+
+def set_nshapers(cfg, nl_shaper) -> None:
+    # Check required features.
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                  'scope':'netdev'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+    if not 'support-bw-max' in caps or not 'support-metric-bps' in caps:
+        raise KsftSkipEx("device does not support nested netdev scope shapers with weight")
+
+    cfg.netdev = True;
+    nl_shaper.set({'ifindex': cfg.ifindex,
+                   'handle': {'scope': 'netdev', 'id': 0},
+                   'bw-max': 100000})
+
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'handle': {'scope': 'netdev'},
+                       'metric': 'bps',
+                       'bw-max': 100000}])
+
+def del_nshapers(cfg, nl_shaper) -> None:
+    if not cfg.netdev:
+        raise KsftSkipEx("netdev shaper not supported by device, skipping delete")
+
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'netdev'}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(len(shapers), 0)
+
+def basic_groups(cfg, nl_shaper) -> None:
+    if not cfg.netdev:
+        raise KsftSkipEx("netdev shaper not supported by the device")
+    if cfg.nr_queues < 3:
+        raise KsftSkipEx(f"netdev does not have enough queues min 3 reported {cfg.nr_queues}")
+
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                  'scope':'queue'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+    if not 'support-weight' in caps:
+        raise KsftSkipEx("device does not support queue scope shapers with weight")
+
+    node_handle = nl_shaper.group({
+                        'ifindex': cfg.ifindex,
+                        'leaves':[{'handle': {'scope': 'queue', 'id': 1},
+                                   'weight': 1},
+                                  {'handle': {'scope': 'queue', 'id': 2},
+                                   'weight': 2}],
+                         'handle': {'scope':'netdev'},
+                         'metric': 'bps',
+                         'bw-max': 10000})
+    ksft_eq(node_handle, {'ifindex': cfg.ifindex,
+                          'handle': {'scope': 'netdev'}})
+
+    shaper = nl_shaper.get({'ifindex': cfg.ifindex,
+                            'handle': {'scope': 'queue', 'id': 1}})
+    ksft_eq(shaper, {'ifindex': cfg.ifindex,
+                     'parent': {'scope': 'netdev'},
+                     'handle': {'scope': 'queue', 'id': 1},
+                     'weight': 1 })
+
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 2}})
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 1}})
+
+    # Deleting all the leaves shaper does not affect the node one
+    # when the latter has 'netdev' scope.
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(len(shapers), 1)
+
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'netdev'}})
+
+def qgroups(cfg, nl_shaper) -> None:
+    if cfg.nr_queues < 4:
+        raise KsftSkipEx(f"netdev does not have enough queues min 4 reported {cfg.nr_queues}")
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                  'scope':'node'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+    if not 'support-bw-max' in caps or not 'support-metric-bps' in caps:
+        raise KsftSkipEx("device does not support node scope shapers with bw_max and metric bps")
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                  'scope':'queue'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("shapers not supported by the device")
+        raise
+    if not 'support-nesting' in caps or not 'support-weight' in caps or not 'support-metric-bps' in caps:
+            raise KsftSkipEx("device does not support nested queue scope shapers with weight")
+
+    cfg.groups = True;
+    node_handle = nl_shaper.group({
+                   'ifindex': cfg.ifindex,
+                   'leaves':[{'handle': {'scope': 'queue', 'id': 1},
+                              'weight': 3},
+                             {'handle': {'scope': 'queue', 'id': 2},
+                              'weight': 2}],
+                   'handle': {'scope':'node'},
+                   'metric': 'bps',
+                   'bw-max': 10000})
+    node_id = node_handle['handle']['id']
+
+    shaper = nl_shaper.get({'ifindex': cfg.ifindex,
+                            'handle': {'scope': 'queue', 'id': 1}})
+    ksft_eq(shaper, {'ifindex': cfg.ifindex,
+                     'parent': {'scope': 'node', 'id': node_id},
+                     'handle': {'scope': 'queue', 'id': 1},
+                     'weight': 3})
+    shaper = nl_shaper.get({'ifindex': cfg.ifindex,
+                            'handle': {'scope': 'node', 'id': node_id}})
+    ksft_eq(shaper, {'ifindex': cfg.ifindex,
+                     'handle': {'scope': 'node', 'id': node_id},
+                     'parent': {'scope': 'netdev'},
+                     'metric': 'bps',
+                     'bw-max': 10000})
+
+    # Grouping to a specified, not existing node scope shaper must fail
+    raised = False
+    try:
+        nl_shaper.group({
+                   'ifindex': cfg.ifindex,
+                   'leaves':[{'handle': {'scope': 'queue', 'id': 3},
+                              'weight': 3}],
+                   'handle': {'scope':'node', 'id': node_id + 1},
+                   'metric': 'bps',
+                   'bw-max': 10000})
+
+    except (NlError):
+        raised = True
+    ksft_eq(raised, True)
+
+    # Add to an existing node
+    node_handle = nl_shaper.group({
+                   'ifindex': cfg.ifindex,
+                   'leaves':[{'handle': {'scope': 'queue', 'id': 3},
+                              'weight': 4}],
+                   'handle': {'scope':'node', 'id': node_id}})
+    ksft_eq(node_handle, {'ifindex': cfg.ifindex,
+                          'handle': {'scope': 'node', 'id': node_id}})
+
+    shaper = nl_shaper.get({'ifindex': cfg.ifindex,
+                            'handle': {'scope': 'queue', 'id': 3}})
+    ksft_eq(shaper, {'ifindex': cfg.ifindex,
+                     'parent': {'scope': 'node', 'id': node_id},
+                     'handle': {'scope': 'queue', 'id': 3},
+                     'weight': 4})
+
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 2}})
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 1}})
+
+    # Deleting a non empty node will move the leaves downstream.
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'node', 'id': node_id}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 3},
+                       'weight': 4}])
+
+    # Finish and verify the complete cleanup.
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'queue', 'id': 3}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(len(shapers), 0)
+
+def delegation(cfg, nl_shaper) -> None:
+    if not cfg.groups:
+        raise KsftSkipEx("device does not support node scope")
+    try:
+        caps = nl_shaper.cap_get({'ifindex': cfg.ifindex,
+                                  'scope':'node'})
+    except NlError as e:
+        if e.error == 95:
+            raise KsftSkipEx("node scope shapers not supported by the device")
+        raise
+    if not 'support-nesting' in caps:
+        raise KsftSkipEx("device does not support node scope shapers nesting")
+
+    node_handle = nl_shaper.group({
+                   'ifindex': cfg.ifindex,
+                   'leaves':[{'handle': {'scope': 'queue', 'id': 1},
+                              'weight': 3},
+                             {'handle': {'scope': 'queue', 'id': 2},
+                              'weight': 2},
+                             {'handle': {'scope': 'queue', 'id': 3},
+                              'weight': 1}],
+                   'handle': {'scope':'node'},
+                   'metric': 'bps',
+                   'bw-max': 10000})
+    node_id = node_handle['handle']['id']
+
+    # Create the nested node and validate the hierarchy
+    nested_node_handle = nl_shaper.group({
+                   'ifindex': cfg.ifindex,
+                   'leaves':[{'handle': {'scope': 'queue', 'id': 1},
+                              'weight': 3},
+                             {'handle': {'scope': 'queue', 'id': 2},
+                              'weight': 2}],
+                   'handle': {'scope':'node'},
+                   'metric': 'bps',
+                   'bw-max': 5000})
+    nested_node_id = nested_node_handle['handle']['id']
+    ksft_true(nested_node_id != node_id)
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': nested_node_id},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'weight': 3},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': nested_node_id},
+                       'handle': {'scope': 'queue', 'id': 2},
+                       'weight': 2},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': node_id},
+                       'handle': {'scope': 'queue', 'id': 3},
+                       'weight': 1},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'node', 'id': node_id},
+                       'metric': 'bps',
+                       'bw-max': 10000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': node_id},
+                       'handle': {'scope': 'node', 'id': nested_node_id},
+                       'metric': 'bps',
+                       'bw-max': 5000}])
+
+    # Deleting a non empty node will move the leaves downstream.
+    nl_shaper.delete({'ifindex': cfg.ifindex,
+                      'handle': {'scope': 'node', 'id': nested_node_id}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': node_id},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'weight': 3},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': node_id},
+                       'handle': {'scope': 'queue', 'id': 2},
+                       'weight': 2},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'node', 'id': node_id},
+                       'handle': {'scope': 'queue', 'id': 3},
+                       'weight': 1},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'node', 'id': node_id},
+                       'metric': 'bps',
+                       'bw-max': 10000}])
+
+    # Final cleanup.
+    for i in range(1, 4):
+        nl_shaper.delete({'ifindex': cfg.ifindex,
+                          'handle': {'scope': 'queue', 'id': i}})
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(len(shapers), 0)
+
+def queue_update(cfg, nl_shaper) -> None:
+    if cfg.nr_queues < 4:
+        raise KsftSkipEx(f"netdev does not have enough queues min 4 reported {cfg.nr_queues}")
+    if not cfg.queues:
+        raise KsftSkipEx("device does not support queue scope")
+
+    for i in range(3):
+        nl_shaper.set({'ifindex': cfg.ifindex,
+                       'handle': {'scope': 'queue', 'id': i},
+                       'metric': 'bps',
+                       'bw-max': (i + 1) * 1000})
+    # Delete a channel, with no shapers configured on top of the related
+    # queue: no changes expected
+    cmd(f"ethtool -L {cfg.dev['ifname']} {cfg.rx_type} 3", timeout=10)
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 0},
+                       'metric': 'bps',
+                       'bw-max': 1000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'metric': 'bps',
+                       'bw-max': 2000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 2},
+                       'metric': 'bps',
+                       'bw-max': 3000}])
+
+    # Delete a channel, with a shaper configured on top of the related
+    # queue: the shaper must be deleted, too
+    cmd(f"ethtool -L {cfg.dev['ifname']} {cfg.rx_type} 2", timeout=10)
+
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 0},
+                       'metric': 'bps',
+                       'bw-max': 1000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'metric': 'bps',
+                       'bw-max': 2000}])
+
+    # Restore the original channels number, no expected changes
+    cmd(f"ethtool -L {cfg.dev['ifname']} {cfg.rx_type} {cfg.nr_queues}", timeout=10)
+    shapers = nl_shaper.get({'ifindex': cfg.ifindex}, dump=True)
+    ksft_eq(shapers, [{'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 0},
+                       'metric': 'bps',
+                       'bw-max': 1000},
+                      {'ifindex': cfg.ifindex,
+                       'parent': {'scope': 'netdev'},
+                       'handle': {'scope': 'queue', 'id': 1},
+                       'metric': 'bps',
+                       'bw-max': 2000}])
+
+    # Final cleanup.
+    for i in range(0, 2):
+        nl_shaper.delete({'ifindex': cfg.ifindex,
+                          'handle': {'scope': 'queue', 'id': i}})
+
+def main() -> None:
+    with NetDrvEnv(__file__, queue_count=4) as cfg:
+        cfg.queues = False
+        cfg.netdev = False
+        cfg.groups = False
+        cfg.nr_queues = 0
+        ksft_run([get_shapers,
+                  get_caps,
+                  set_qshapers,
+                  del_qshapers,
+                  set_nshapers,
+                  del_nshapers,
+                  basic_groups,
+                  qgroups,
+                  delegation,
+                  queue_update], args=(cfg, NetshaperFamily()))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/stats.py b/tools/testing/selftests/drivers/net/stats.py
new file mode 100755
index 000000000000..b08e4d48b15c
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/stats.py
@@ -0,0 +1,321 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Tests related to standard netdevice statistics.
+"""
+
+import errno
+import subprocess
+import time
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import ksft_ge, ksft_eq, ksft_is, ksft_in, ksft_lt, ksft_true, ksft_raises
+from lib.py import KsftSkipEx, KsftFailEx
+from lib.py import ksft_disruptive
+from lib.py import EthtoolFamily, NetdevFamily, RtnlFamily, NlError
+from lib.py import NetDrvEnv
+from lib.py import cmd, ip, defer
+
+ethnl = EthtoolFamily()
+netfam = NetdevFamily()
+rtnl = RtnlFamily()
+
+
+def check_pause(cfg) -> None:
+    """
+    Check that drivers which support Pause config also report standard
+    pause stats.
+    """
+
+    try:
+        ethnl.pause_get({"header": {"dev-index": cfg.ifindex}})
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("pause not supported by the device") from e
+        raise
+
+    data = ethnl.pause_get({"header": {"dev-index": cfg.ifindex,
+                                       "flags": {'stats'}}})
+    ksft_true(data['stats'], "driver does not report stats")
+
+
+def check_fec(cfg) -> None:
+    """
+    Check that drivers which support FEC config also report standard
+    FEC stats.
+    """
+
+    try:
+        ethnl.fec_get({"header": {"dev-index": cfg.ifindex}})
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("FEC not supported by the device") from e
+        raise
+
+    data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
+                                     "flags": {'stats'}}})
+    ksft_true(data['stats'], "driver does not report stats")
+
+
+def check_fec_hist(cfg) -> None:
+    """
+    Check that drivers which support FEC histogram statistics report
+    reasonable values.
+    """
+
+    try:
+        data = ethnl.fec_get({"header": {"dev-index": cfg.ifindex,
+                                         "flags": {'stats'}}})
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("FEC not supported by the device") from e
+        raise
+    if 'stats' not in data:
+        raise KsftSkipEx("FEC stats not supported by the device")
+    if 'hist' not in data['stats']:
+        raise KsftSkipEx("FEC histogram not supported by the device")
+
+    hist = data['stats']['hist']
+    for fec_bin in hist:
+        for key in ['bin-low', 'bin-high', 'bin-val']:
+            ksft_in(key, fec_bin,
+	            "Drivers should always report FEC bin range and value")
+        ksft_ge(fec_bin['bin-high'], fec_bin['bin-low'],
+                "FEC bin range should be valid")
+        if 'bin-val-per-lane' in fec_bin:
+            ksft_eq(sum(fec_bin['bin-val-per-lane']), fec_bin['bin-val'],
+                    "FEC bin value should be equal to sum of per-plane values")
+
+
+def pkt_byte_sum(cfg) -> None:
+    """
+    Check that qstat and interface stats match in value.
+    """
+
+    def get_qstat(test):
+        stats = netfam.qstats_get({}, dump=True)
+        if stats:
+            for qs in stats:
+                if qs["ifindex"]== test.ifindex:
+                    return qs
+        return None
+
+    qstat = get_qstat(cfg)
+    if qstat is None:
+        raise KsftSkipEx("qstats not supported by the device")
+
+    for key in ['tx-packets', 'tx-bytes', 'rx-packets', 'rx-bytes']:
+        ksft_in(key, qstat, "Drivers should always report basic keys")
+
+    # Compare stats, rtnl stats and qstats must match,
+    # but the interface may be up, so do a series of dumps
+    # each time the more "recent" stats must be higher or same.
+    def stat_cmp(rstat, qstat):
+        for key in ['tx-packets', 'tx-bytes', 'rx-packets', 'rx-bytes']:
+            if rstat[key] != qstat[key]:
+                return rstat[key] - qstat[key]
+        return 0
+
+    for _ in range(10):
+        rtstat = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
+        if stat_cmp(rtstat, qstat) < 0:
+            raise KsftFailEx("RTNL stats are lower, fetched later")
+        qstat = get_qstat(cfg)
+        if stat_cmp(rtstat, qstat) > 0:
+            raise KsftFailEx("Qstats are lower, fetched later")
+
+
+def qstat_by_ifindex(cfg) -> None:
+    """ Qstats Netlink API tests - querying by ifindex. """
+
+    # Construct a map ifindex -> [dump, by-index, dump]
+    ifindexes = {}
+    stats = netfam.qstats_get({}, dump=True)
+    for entry in stats:
+        ifindexes[entry['ifindex']] = [entry, None, None]
+
+    for ifindex in ifindexes:
+        entry = netfam.qstats_get({"ifindex": ifindex}, dump=True)
+        ksft_eq(len(entry), 1)
+        ifindexes[entry[0]['ifindex']][1] = entry[0]
+
+    stats = netfam.qstats_get({}, dump=True)
+    for entry in stats:
+        ifindexes[entry['ifindex']][2] = entry
+
+    if len(ifindexes) == 0:
+        raise KsftSkipEx("No ifindex supports qstats")
+
+    # Now make sure the stats match/make sense
+    for ifindex, triple in ifindexes.items():
+        all_keys = triple[0].keys() | triple[1].keys() | triple[2].keys()
+
+        for key in all_keys:
+            ksft_ge(triple[1][key], triple[0][key], comment="bad key: " + key)
+            ksft_ge(triple[2][key], triple[1][key], comment="bad key: " + key)
+
+    # Sanity check the dumps
+    queues = NetdevFamily(recv_size=4096).qstats_get({"scope": "queue"}, dump=True)
+    # Reformat the output into {ifindex: {rx: [id, id, ...], tx: [id, id, ...]}}
+    parsed = {}
+    for entry in queues:
+        ifindex = entry["ifindex"]
+        if ifindex not in parsed:
+            parsed[ifindex] = {"rx":[], "tx": []}
+        parsed[ifindex][entry["queue-type"]].append(entry['queue-id'])
+    # Now, validate
+    for ifindex, queues in parsed.items():
+        for qtype in ['rx', 'tx']:
+            ksft_eq(len(queues[qtype]), len(set(queues[qtype])),
+                    comment="repeated queue keys")
+            ksft_eq(len(queues[qtype]), max(queues[qtype]) + 1,
+                    comment="missing queue keys")
+
+    # Test invalid dumps
+    # 0 is invalid
+    with ksft_raises(NlError) as cm:
+        netfam.qstats_get({"ifindex": 0}, dump=True)
+    ksft_eq(cm.exception.nl_msg.error, -34)
+    ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.ifindex')
+
+    # loopback has no stats
+    with ksft_raises(NlError) as cm:
+        netfam.qstats_get({"ifindex": 1}, dump=True)
+    ksft_eq(cm.exception.nl_msg.error, -errno.EOPNOTSUPP)
+    ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.ifindex')
+
+    # Try to get stats for lowest unused ifindex but not 0
+    devs = rtnl.getlink({}, dump=True)
+    all_ifindexes = set(dev["ifi-index"] for dev in devs)
+    lowest = 2
+    while lowest in all_ifindexes:
+        lowest += 1
+
+    with ksft_raises(NlError) as cm:
+        netfam.qstats_get({"ifindex": lowest}, dump=True)
+    ksft_eq(cm.exception.nl_msg.error, -19)
+    ksft_eq(cm.exception.nl_msg.extack['bad-attr'], '.ifindex')
+
+
+@ksft_disruptive
+def check_down(cfg) -> None:
+    """ Test statistics (interface and qstat) are not impacted by ifdown """
+
+    try:
+        qstat = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+    except NlError as e:
+        if e.error == errno.EOPNOTSUPP:
+            raise KsftSkipEx("qstats not supported by the device") from e
+        raise
+
+    ip(f"link set dev {cfg.dev['ifname']} down")
+    defer(ip, f"link set dev {cfg.dev['ifname']} up")
+
+    qstat2 = netfam.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+    for k in qstat:
+        ksft_ge(qstat2[k], qstat[k], comment=f"{k} went backwards on device down")
+
+    # exercise per-queue API to make sure that "device down" state
+    # is handled correctly and doesn't crash
+    netfam.qstats_get({"ifindex": cfg.ifindex, "scope": "queue"}, dump=True)
+
+
+def __run_inf_loop(body):
+    body = body.strip()
+    if body[-1] != ';':
+        body += ';'
+
+    return subprocess.Popen(f"while true; do {body} done", shell=True,
+                            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+
+def __stats_increase_sanely(old, new) -> None:
+    for k in old.keys():
+        ksft_ge(new[k], old[k])
+        ksft_lt(new[k] - old[k], 1 << 31, comment="likely wrapping error")
+
+
+def procfs_hammer(cfg) -> None:
+    """
+    Reading stats via procfs only holds the RCU lock, which is not an exclusive
+    lock, make sure drivers can handle parallel reads of stats.
+    """
+    one = __run_inf_loop("cat /proc/net/dev")
+    defer(one.kill)
+    two = __run_inf_loop("cat /proc/net/dev")
+    defer(two.kill)
+
+    time.sleep(1)
+    # Make sure the processes are running
+    ksft_is(one.poll(), None)
+    ksft_is(two.poll(), None)
+
+    rtstat1 = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
+    time.sleep(2)
+    rtstat2 = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
+    __stats_increase_sanely(rtstat1, rtstat2)
+    # defers will kill the loops
+
+
+@ksft_disruptive
+def procfs_downup_hammer(cfg) -> None:
+    """
+    Reading stats via procfs only holds the RCU lock, drivers often try
+    to sleep when reading the stats, or don't protect against races.
+    """
+    # Set a large number of queues,
+    # we'll flip between min(max_queues, 64) and 1
+    channels = ethnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+    if channels['combined-count'] == 0:
+        rx_type = 'rx'
+    else:
+        rx_type = 'combined'
+    cur_queue_cnt = channels[f'{rx_type}-count']
+    max_queue_cnt = min(channels[f'{rx_type}-max'], 64)
+
+    cmd(f"ethtool -L {cfg.ifname} {rx_type} {max_queue_cnt}")
+    defer(cmd, f"ethtool -L {cfg.ifname} {rx_type} {cur_queue_cnt}")
+
+    # Real test stats
+    stats = __run_inf_loop("cat /proc/net/dev")
+    defer(stats.kill)
+
+    ipset = f"ip link set dev {cfg.ifname}"
+    defer(ip, f"link set dev {cfg.ifname} up")
+    # The "echo -n 1" lets us count iterations below
+    updown = f"{ipset} down; sleep 0.05; {ipset} up; sleep 0.05; " + \
+             f"ethtool -L {cfg.ifname} {rx_type} 1; " + \
+             f"ethtool -L {cfg.ifname} {rx_type} {max_queue_cnt}; " + \
+              "echo -n 1"
+    updown = __run_inf_loop(updown)
+    kill_updown = defer(updown.kill)
+
+    time.sleep(1)
+    # Make sure the processes are running
+    ksft_is(stats.poll(), None)
+    ksft_is(updown.poll(), None)
+
+    rtstat1 = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
+    # We're looking for crashes, give it extra time
+    time.sleep(9)
+    rtstat2 = rtnl.getlink({"ifi-index": cfg.ifindex})['stats64']
+    __stats_increase_sanely(rtstat1, rtstat2)
+
+    kill_updown.exec()
+    stdout, _ = updown.communicate(timeout=5)
+    ksft_pr("completed up/down cycles:", len(stdout.decode('utf-8')))
+
+
+def main() -> None:
+    """ Ksft boiler plate main """
+
+    with NetDrvEnv(__file__, queue_count=100) as cfg:
+        ksft_run([check_pause, check_fec, check_fec_hist, pkt_byte_sum,
+		  qstat_by_ifindex, check_down, procfs_hammer,
+		  procfs_downup_hammer],
+                 args=(cfg, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/net/team/Makefile b/tools/testing/selftests/drivers/net/team/Makefile
new file mode 100644
index 000000000000..1340b3df9c31
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for net selftests
+
+TEST_PROGS := \
+	dev_addr_lists.sh \
+	options.sh \
+	propagation.sh \
+# end of TEST_PROGS
+
+TEST_INCLUDES := \
+	../bonding/lag_lib.sh \
+	../../../net/forwarding/lib.sh \
+	../../../net/in_netns.sh \
+	../../../net/lib.sh \
+	../../../net/lib/sh/defer.sh \
+# end of TEST_INCLUDES
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/team/config b/tools/testing/selftests/drivers/net/team/config
new file mode 100644
index 000000000000..558e1d0cf565
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/config
@@ -0,0 +1,7 @@
+CONFIG_DUMMY=y
+CONFIG_IPV6=y
+CONFIG_MACVLAN=y
+CONFIG_NETDEVSIM=m
+CONFIG_NET_TEAM=y
+CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=y
+CONFIG_NET_TEAM_MODE_LOADBALANCE=y
diff --git a/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh b/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh
new file mode 100755
index 000000000000..b1ec7755b783
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/dev_addr_lists.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test team device handling of addr lists (dev->uc, mc)
+#
+
+ALL_TESTS="
+	team_cleanup
+"
+
+REQUIRE_MZ=no
+NUM_NETIFS=0
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+source "$lib_dir"/../bonding/lag_lib.sh
+
+
+destroy()
+{
+	local ifnames=(dummy1 dummy2 team0 mv0)
+	local ifname
+
+	for ifname in "${ifnames[@]}"; do
+		ip link del "$ifname" &>/dev/null
+	done
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	destroy
+}
+
+
+team_cleanup()
+{
+	RET=0
+
+	test_LAG_cleanup "team" "lacp"
+}
+
+
+require_command teamd
+
+trap cleanup EXIT
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/team/options.sh b/tools/testing/selftests/drivers/net/team/options.sh
new file mode 100755
index 000000000000..44888f32b513
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/options.sh
@@ -0,0 +1,188 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# These tests verify basic set and get functionality of the team
+# driver options over netlink.
+
+# Run in private netns.
+test_dir="$(dirname "$0")"
+if [[ $# -eq 0 ]]; then
+        "${test_dir}"/../../../net/in_netns.sh "$0" __subprocess
+        exit $?
+fi
+
+ALL_TESTS="
+        team_test_options
+"
+
+source "${test_dir}/../../../net/lib.sh"
+
+TEAM_PORT="team0"
+MEMBER_PORT="dummy0"
+
+setup()
+{
+        ip link add name "${MEMBER_PORT}" type dummy
+        ip link add name "${TEAM_PORT}" type team
+}
+
+get_and_check_value()
+{
+        local option_name="$1"
+        local expected_value="$2"
+        local port_flag="$3"
+
+        local value_from_get
+
+        if ! value_from_get=$(teamnl "${TEAM_PORT}" getoption "${option_name}" \
+                        "${port_flag}"); then
+                echo "Could not get option '${option_name}'" >&2
+                return 1
+        fi
+
+        if [[ "${value_from_get}" != "${expected_value}" ]]; then
+                echo "Incorrect value for option '${option_name}'" >&2
+                echo "get (${value_from_get}) != set (${expected_value})" >&2
+                return 1
+        fi
+}
+
+set_and_check_get()
+{
+        local option_name="$1"
+        local option_value="$2"
+        local port_flag="$3"
+
+        local value_from_get
+
+        if ! teamnl "${TEAM_PORT}" setoption "${option_name}" \
+                        "${option_value}" "${port_flag}"; then
+                echo "'setoption ${option_name} ${option_value}' failed" >&2
+                return 1
+        fi
+
+        get_and_check_value "${option_name}" "${option_value}" "${port_flag}"
+        return $?
+}
+
+# Get a "port flag" to pass to the `teamnl` command.
+# E.g. $1="dummy0" -> "port=dummy0",
+#      $1=""       -> ""
+get_port_flag()
+{
+        local port_name="$1"
+
+        if [[ -n "${port_name}" ]]; then
+                echo "--port=${port_name}"
+        fi
+}
+
+attach_port_if_specified()
+{
+        local port_name="$1"
+
+        if [[ -n "${port_name}" ]]; then
+                ip link set dev "${port_name}" master "${TEAM_PORT}"
+                return $?
+        fi
+}
+
+detach_port_if_specified()
+{
+        local port_name="$1"
+
+        if [[ -n "${port_name}" ]]; then
+                ip link set dev "${port_name}" nomaster
+                return $?
+        fi
+}
+
+# Test that an option's get value matches its set value.
+# Globals:
+#   RET - Used by testing infra like `check_err`.
+#   EXIT_STATUS - Used by `log_test` for whole script exit value.
+# Arguments:
+#   option_name - The name of the option.
+#   value_1 - The first value to try setting.
+#   value_2 - The second value to try setting.
+#   port_name - The (optional) name of the attached port.
+team_test_option()
+{
+        local option_name="$1"
+        local value_1="$2"
+        local value_2="$3"
+        local possible_values="$2 $3 $2"
+        local port_name="$4"
+        local port_flag
+
+        RET=0
+
+        echo "Setting '${option_name}' to '${value_1}' and '${value_2}'"
+
+        attach_port_if_specified "${port_name}"
+        check_err $? "Couldn't attach ${port_name} to master"
+        port_flag=$(get_port_flag "${port_name}")
+
+        # Set and get both possible values.
+        for value in ${possible_values}; do
+                set_and_check_get "${option_name}" "${value}" "${port_flag}"
+                check_err $? "Failed to set '${option_name}' to '${value}'"
+        done
+
+        detach_port_if_specified "${port_name}"
+        check_err $? "Couldn't detach ${port_name} from its master"
+
+        log_test "Set + Get '${option_name}' test"
+}
+
+# Test that getting a non-existant option fails.
+# Globals:
+#   RET - Used by testing infra like `check_err`.
+#   EXIT_STATUS - Used by `log_test` for whole script exit value.
+# Arguments:
+#   option_name - The name of the option.
+#   port_name - The (optional) name of the attached port.
+team_test_get_option_fails()
+{
+        local option_name="$1"
+        local port_name="$2"
+        local port_flag
+
+        RET=0
+
+        attach_port_if_specified "${port_name}"
+        check_err $? "Couldn't attach ${port_name} to master"
+        port_flag=$(get_port_flag "${port_name}")
+
+        # Just confirm that getting the value fails.
+        teamnl "${TEAM_PORT}" getoption "${option_name}" "${port_flag}"
+        check_fail $? "Shouldn't be able to get option '${option_name}'"
+
+        detach_port_if_specified "${port_name}"
+
+        log_test "Get '${option_name}' fails"
+}
+
+team_test_options()
+{
+        # Wrong option name behavior.
+        team_test_get_option_fails fake_option1
+        team_test_get_option_fails fake_option2 "${MEMBER_PORT}"
+
+        # Correct set and get behavior.
+        team_test_option mode activebackup loadbalance
+        team_test_option notify_peers_count 0 5
+        team_test_option notify_peers_interval 0 5
+        team_test_option mcast_rejoin_count 0 5
+        team_test_option mcast_rejoin_interval 0 5
+        team_test_option enabled true false "${MEMBER_PORT}"
+        team_test_option user_linkup true false "${MEMBER_PORT}"
+        team_test_option user_linkup_enabled true false "${MEMBER_PORT}"
+        team_test_option priority 10 20 "${MEMBER_PORT}"
+        team_test_option queue_id 0 1 "${MEMBER_PORT}"
+}
+
+require_command teamnl
+setup
+tests_run
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/drivers/net/team/propagation.sh b/tools/testing/selftests/drivers/net/team/propagation.sh
new file mode 100755
index 000000000000..4bea75b79878
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/team/propagation.sh
@@ -0,0 +1,80 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+NSIM_LRO_ID=$((256 + RANDOM % 256))
+NSIM_LRO_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_LRO_ID
+
+NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
+NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
+
+cleanup()
+{
+	set +e
+	ip link del dummyteam &>/dev/null
+	ip link del team0 &>/dev/null
+	echo $NSIM_LRO_ID > $NSIM_DEV_SYS_DEL
+	modprobe -r netdevsim
+}
+
+# Trigger LRO propagation to the lower.
+# https://lore.kernel.org/netdev/aBvOpkIoxcr9PfDg@mini-arch/
+team_lro()
+{
+	# using netdevsim because it supports NETIF_F_LRO
+	NSIM_LRO_NAME=$(find $NSIM_LRO_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_LRO_SYS/net -exec basename {} \;)
+
+	ip link add name team0 type team
+	ip link set $NSIM_LRO_NAME down
+	ip link set dev $NSIM_LRO_NAME master team0
+	ip link set team0 up
+	ethtool -K team0 large-receive-offload off
+
+	ip link del team0
+}
+
+# Trigger promisc propagation to the lower during IFLA_MASTER.
+# https://lore.kernel.org/netdev/20250506032328.3003050-1-sdf@fomichev.me/
+team_promisc()
+{
+	ip link add name dummyteam type dummy
+	ip link add name team0 type team
+	ip link set dummyteam down
+	ip link set team0 promisc on
+	ip link set dev dummyteam master team0
+	ip link set team0 up
+
+	ip link del team0
+	ip link del dummyteam
+}
+
+# Trigger promisc propagation to the lower via netif_change_flags (aka
+# ndo_change_rx_flags).
+# https://lore.kernel.org/netdev/20250514220319.3505158-1-stfomichev@gmail.com/
+team_change_flags()
+{
+	ip link add name dummyteam type dummy
+	ip link add name team0 type team
+	ip link set dummyteam down
+	ip link set dev dummyteam master team0
+	ip link set team0 up
+	ip link set team0 promisc on
+
+	# Make sure we can add more L2 addresses without any issues.
+	ip link add link team0 address 00:00:00:00:00:01 team0.1 type macvlan
+	ip link set team0.1 up
+
+	ip link del team0.1
+	ip link del team0
+	ip link del dummyteam
+}
+
+trap cleanup EXIT
+modprobe netdevsim || :
+echo $NSIM_LRO_ID > $NSIM_DEV_SYS_NEW
+udevadm settle
+team_lro
+team_promisc
+team_change_flags
diff --git a/tools/testing/selftests/drivers/net/virtio_net/Makefile b/tools/testing/selftests/drivers/net/virtio_net/Makefile
new file mode 100644
index 000000000000..868ece3fea1f
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/virtio_net/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS = basic_features.sh
+
+TEST_FILES = virtio_net_common.sh
+
+TEST_INCLUDES = \
+	../../../net/forwarding/lib.sh \
+	../../../net/lib.sh \
+# end of TEST_INCLUDES
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/virtio_net/basic_features.sh b/tools/testing/selftests/drivers/net/virtio_net/basic_features.sh
new file mode 100755
index 000000000000..cf8cf816ed48
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/virtio_net/basic_features.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# See virtio_net_common.sh comments for more details about assumed setup
+
+ALL_TESTS="
+	initial_ping_test
+	f_mac_test
+"
+
+source virtio_net_common.sh
+
+lib_dir=$(dirname "$0")
+source "$lib_dir"/../../../net/forwarding/lib.sh
+
+h1=${NETIFS[p1]}
+h2=${NETIFS[p2]}
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+initial_ping_test()
+{
+	setup_cleanup
+	setup_prepare
+	ping_test $h1 $H2_IPV4 " simple"
+}
+
+f_mac_test()
+{
+	RET=0
+	local test_name="mac feature filtered"
+
+	virtio_feature_present $h1 $VIRTIO_NET_F_MAC
+	if [ $? -ne 0 ]; then
+		log_test_skip "$test_name" "Device $h1 is missing feature $VIRTIO_NET_F_MAC."
+		return 0
+	fi
+	virtio_feature_present $h1 $VIRTIO_NET_F_MAC
+	if [ $? -ne 0 ]; then
+		log_test_skip "$test_name" "Device $h2 is missing feature $VIRTIO_NET_F_MAC."
+		return 0
+	fi
+
+	setup_cleanup
+	setup_prepare
+
+	grep -q 0 /sys/class/net/$h1/addr_assign_type
+	check_err $? "Permanent address assign type for $h1 is not set"
+	grep -q 0 /sys/class/net/$h2/addr_assign_type
+	check_err $? "Permanent address assign type for $h2 is not set"
+
+	setup_cleanup
+	virtio_filter_feature_add $h1 $VIRTIO_NET_F_MAC
+	virtio_filter_feature_add $h2 $VIRTIO_NET_F_MAC
+	setup_prepare
+
+	grep -q 0 /sys/class/net/$h1/addr_assign_type
+	check_fail $? "Permanent address assign type for $h1 is set when F_MAC feature is filtered"
+	grep -q 0 /sys/class/net/$h2/addr_assign_type
+	check_fail $? "Permanent address assign type for $h2 is set when F_MAC feature is filtered"
+
+	ping_do $h1 $H2_IPV4
+	check_err $? "Ping failed"
+
+	log_test "$test_name"
+}
+
+setup_prepare()
+{
+	virtio_device_rebind $h1
+	virtio_device_rebind $h2
+	wait_for_dev $h1
+	wait_for_dev $h2
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+setup_cleanup()
+{
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	virtio_filter_features_clear $h1
+	virtio_filter_features_clear $h2
+	virtio_device_rebind $h1
+	virtio_device_rebind $h2
+	wait_for_dev $h1
+	wait_for_dev $h2
+}
+
+cleanup()
+{
+	pre_cleanup
+	setup_cleanup
+}
+
+check_driver $h1 "virtio_net"
+check_driver $h2 "virtio_net"
+check_virtio_debugfs $h1
+check_virtio_debugfs $h2
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/drivers/net/virtio_net/config b/tools/testing/selftests/drivers/net/virtio_net/config
new file mode 100644
index 000000000000..bcf7555eaffe
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/virtio_net/config
@@ -0,0 +1,8 @@
+CONFIG_BPF_SYSCALL=y
+CONFIG_CGROUP_BPF=y
+CONFIG_IPV6=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_VRF=m
+CONFIG_VIRTIO_DEBUG=y
+CONFIG_VIRTIO_NET=y
diff --git a/tools/testing/selftests/drivers/net/virtio_net/virtio_net_common.sh b/tools/testing/selftests/drivers/net/virtio_net/virtio_net_common.sh
new file mode 100644
index 000000000000..57bd8055e2e5
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/virtio_net/virtio_net_common.sh
@@ -0,0 +1,99 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This assumes running on a host with two virtio interfaces connected
+# back to back. Example script to do such wire-up of tap devices would
+# look like this:
+#
+# =======================================================================================================
+# #!/bin/bash
+#
+# DEV1="$1"
+# DEV2="$2"
+#
+# sudo tc qdisc add dev $DEV1 clsact
+# sudo tc qdisc add dev $DEV2 clsact
+# sudo tc filter add dev $DEV1 ingress protocol all pref 1 matchall action mirred egress redirect dev $DEV2
+# sudo tc filter add dev $DEV2 ingress protocol all pref 1 matchall action mirred egress redirect dev $DEV1
+# sudo ip link set $DEV1 up
+# sudo ip link set $DEV2 up
+# =======================================================================================================
+
+REQUIRE_MZ="no"
+NETIF_CREATE="no"
+NETIF_FIND_DRIVER="virtio_net"
+NUM_NETIFS=2
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+VIRTIO_NET_F_MAC=5
+
+virtio_device_get()
+{
+	local dev=$1; shift
+	local device_path="/sys/class/net/$dev/device/"
+
+	basename `realpath $device_path`
+}
+
+virtio_device_rebind()
+{
+	local dev=$1; shift
+	local device=`virtio_device_get $dev`
+
+	echo "$device" > /sys/bus/virtio/drivers/virtio_net/unbind
+	echo "$device" > /sys/bus/virtio/drivers/virtio_net/bind
+}
+
+virtio_debugfs_get()
+{
+	local dev=$1; shift
+	local device=`virtio_device_get $dev`
+
+	echo /sys/kernel/debug/virtio/$device/
+}
+
+check_virtio_debugfs()
+{
+	local dev=$1; shift
+	local debugfs=`virtio_debugfs_get $dev`
+
+	if [ ! -f "$debugfs/device_features" ] ||
+	   [ ! -f "$debugfs/filter_feature_add"  ] ||
+	   [ ! -f "$debugfs/filter_feature_del"  ] ||
+	   [ ! -f "$debugfs/filter_features"  ] ||
+	   [ ! -f "$debugfs/filter_features_clear"  ]; then
+		echo "SKIP: not possible to access debugfs for $dev"
+		exit $ksft_skip
+	fi
+}
+
+virtio_feature_present()
+{
+	local dev=$1; shift
+	local feature=$1; shift
+	local debugfs=`virtio_debugfs_get $dev`
+
+	cat $debugfs/device_features |grep "^$feature$" &> /dev/null
+	return $?
+}
+
+virtio_filter_features_clear()
+{
+	local dev=$1; shift
+	local debugfs=`virtio_debugfs_get $dev`
+
+	echo "1" > $debugfs/filter_features_clear
+}
+
+virtio_filter_feature_add()
+{
+	local dev=$1; shift
+	local feature=$1; shift
+	local debugfs=`virtio_debugfs_get $dev`
+
+	echo "$feature" > $debugfs/filter_feature_add
+}
diff --git a/tools/testing/selftests/drivers/net/xdp.py b/tools/testing/selftests/drivers/net/xdp.py
new file mode 100755
index 000000000000..e54df158dfe9
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/xdp.py
@@ -0,0 +1,779 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+This file contains tests to verify native XDP support in network drivers.
+The tests utilize the BPF program `xdp_native.bpf.o` from the `selftests.net.lib`
+directory, with each test focusing on a specific aspect of XDP functionality.
+"""
+import random
+import string
+from dataclasses import dataclass
+from enum import Enum
+
+from lib.py import ksft_run, ksft_exit, ksft_eq, ksft_ge, ksft_ne, ksft_pr
+from lib.py import KsftNamedVariant, ksft_variants
+from lib.py import KsftFailEx, NetDrvEpEnv
+from lib.py import EthtoolFamily, NetdevFamily, NlError
+from lib.py import bkg, cmd, rand_port, wait_port_listen
+from lib.py import ip, bpftool, defer
+
+
+class TestConfig(Enum):
+    """Enum for XDP configuration options."""
+    MODE = 0  # Configures the BPF program for a specific test
+    PORT = 1  # Port configuration to communicate with the remote host
+    ADJST_OFFSET = 2  # Tail/Head adjustment offset for extension/shrinking
+    ADJST_TAG = 3  # Adjustment tag to annotate the start and end of extension
+
+
+class XDPAction(Enum):
+    """Enum for XDP actions."""
+    PASS = 0  # Pass the packet up to the stack
+    DROP = 1  # Drop the packet
+    TX = 2    # Route the packet to the remote host
+    TAIL_ADJST = 3  # Adjust the tail of the packet
+    HEAD_ADJST = 4  # Adjust the head of the packet
+
+
+class XDPStats(Enum):
+    """Enum for XDP statistics."""
+    RX = 0    # Count of valid packets received for testing
+    PASS = 1  # Count of packets passed up to the stack
+    DROP = 2  # Count of packets dropped
+    TX = 3    # Count of incoming packets routed to the remote host
+    ABORT = 4 # Count of packets that were aborted
+
+
+@dataclass
+class BPFProgInfo:
+    """Data class to store information about a BPF program."""
+    name: str               # Name of the BPF program
+    file: str               # BPF program object file
+    xdp_sec: str = "xdp"    # XDP section name (e.g., "xdp" or "xdp.frags")
+    mtu: int = 1500         # Maximum Transmission Unit, default is 1500
+
+
+def _exchg_udp(cfg, port, test_string):
+    """
+    Exchanges UDP packets between a local and remote host using the socat tool.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        port: Port number to use for the UDP communication.
+        test_string: String that the remote host will send.
+
+    Returns:
+        The string received by the test host.
+    """
+    cfg.require_cmd("socat", remote=True)
+
+    rx_udp_cmd = f"socat -{cfg.addr_ipver} -T 2 -u UDP-RECV:{port},reuseport STDOUT"
+    tx_udp_cmd = f"echo -n {test_string} | socat -t 2 -u STDIN UDP:{cfg.baddr}:{port}"
+
+    with bkg(rx_udp_cmd, exit_wait=True) as nc:
+        wait_port_listen(port, proto="udp")
+        cmd(tx_udp_cmd, host=cfg.remote, shell=True)
+
+    return nc.stdout.strip()
+
+
+def _test_udp(cfg, port, size=256):
+    """
+    Tests UDP packet exchange between a local and remote host.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        port: Port number to use for the UDP communication.
+        size: The length of the test string to be exchanged, default is 256 characters.
+
+    Returns:
+        bool: True if the received string matches the sent string, False otherwise.
+    """
+    test_str = "".join(random.choice(string.ascii_lowercase) for _ in range(size))
+    recvd_str = _exchg_udp(cfg, port, test_str)
+
+    return recvd_str == test_str
+
+
+def _load_xdp_prog(cfg, bpf_info):
+    """
+    Loads an XDP program onto a network interface.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        bpf_info: BPFProgInfo object containing information about the BPF program.
+
+    Returns:
+        dict: A dictionary containing the XDP program ID, name, and associated map IDs.
+    """
+    abs_path = cfg.net_lib_dir / bpf_info.file
+    prog_info = {}
+
+    cmd(f"ip link set dev {cfg.remote_ifname} mtu {bpf_info.mtu}", shell=True, host=cfg.remote)
+    defer(ip, f"link set dev {cfg.remote_ifname} mtu 1500", host=cfg.remote)
+
+    cmd(
+    f"ip link set dev {cfg.ifname} mtu {bpf_info.mtu} xdpdrv obj {abs_path} sec {bpf_info.xdp_sec}",
+    shell=True
+    )
+    defer(ip, f"link set dev {cfg.ifname} mtu 1500 xdpdrv off")
+
+    xdp_info = ip(f"-d link show dev {cfg.ifname}", json=True)[0]
+    prog_info["id"] = xdp_info["xdp"]["prog"]["id"]
+    prog_info["name"] = xdp_info["xdp"]["prog"]["name"]
+    prog_id = prog_info["id"]
+
+    map_ids = bpftool(f"prog show id {prog_id}", json=True)["map_ids"]
+    prog_info["maps"] = {}
+    for map_id in map_ids:
+        name = bpftool(f"map show id {map_id}", json=True)["name"]
+        prog_info["maps"][name] = map_id
+
+    return prog_info
+
+
+def format_hex_bytes(value):
+    """
+    Helper function that converts an integer into a formatted hexadecimal byte string.
+
+    Args:
+        value: An integer representing the number to be converted.
+
+    Returns:
+        A string representing hexadecimal equivalent of value, with bytes separated by spaces.
+    """
+    hex_str = value.to_bytes(4, byteorder='little', signed=True)
+    return ' '.join(f'{byte:02x}' for byte in hex_str)
+
+
+def _set_xdp_map(map_name, key, value):
+    """
+    Updates an XDP map with a given key-value pair using bpftool.
+
+    Args:
+        map_name: The name of the XDP map to update.
+        key: The key to update in the map, formatted as a hexadecimal string.
+        value: The value to associate with the key, formatted as a hexadecimal string.
+    """
+    key_formatted = format_hex_bytes(key)
+    value_formatted = format_hex_bytes(value)
+    bpftool(
+        f"map update name {map_name} key hex {key_formatted} value hex {value_formatted}"
+    )
+
+
+def _get_stats(xdp_map_id):
+    """
+    Retrieves and formats statistics from an XDP map.
+
+    Args:
+        xdp_map_id: The ID of the XDP map from which to retrieve statistics.
+
+    Returns:
+        A dictionary containing formatted packet statistics for various XDP actions.
+        The keys are based on the XDPStats Enum values.
+
+    Raises:
+        KsftFailEx: If the stats retrieval fails.
+    """
+    stats_dump = bpftool(f"map dump id {xdp_map_id}", json=True)
+    if not stats_dump:
+        raise KsftFailEx(f"Failed to get stats for map {xdp_map_id}")
+
+    stats_formatted = {}
+    for key in range(0, 5):
+        val = stats_dump[key]["formatted"]["value"]
+        if stats_dump[key]["formatted"]["key"] == XDPStats.RX.value:
+            stats_formatted[XDPStats.RX.value] = val
+        elif stats_dump[key]["formatted"]["key"] == XDPStats.PASS.value:
+            stats_formatted[XDPStats.PASS.value] = val
+        elif stats_dump[key]["formatted"]["key"] == XDPStats.DROP.value:
+            stats_formatted[XDPStats.DROP.value] = val
+        elif stats_dump[key]["formatted"]["key"] == XDPStats.TX.value:
+            stats_formatted[XDPStats.TX.value] = val
+        elif stats_dump[key]["formatted"]["key"] == XDPStats.ABORT.value:
+            stats_formatted[XDPStats.ABORT.value] = val
+
+    return stats_formatted
+
+
+def _test_pass(cfg, bpf_info, msg_sz):
+    """
+    Tests the XDP_PASS action by exchanging UDP packets.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        bpf_info: BPFProgInfo object containing information about the BPF program.
+        msg_sz: Size of the test message to send.
+    """
+
+    prog_info = _load_xdp_prog(cfg, bpf_info)
+    port = rand_port()
+
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, XDPAction.PASS.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    ksft_eq(_test_udp(cfg, port, msg_sz), True, "UDP packet exchange failed")
+    stats = _get_stats(prog_info["maps"]["map_xdp_stats"])
+
+    ksft_ne(stats[XDPStats.RX.value], 0, "RX stats should not be zero")
+    ksft_eq(stats[XDPStats.RX.value], stats[XDPStats.PASS.value], "RX and PASS stats mismatch")
+
+
+def test_xdp_native_pass_sb(cfg):
+    """
+    Tests the XDP_PASS action for single buffer case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog", "xdp_native.bpf.o", "xdp", 1500)
+
+    _test_pass(cfg, bpf_info, 256)
+
+
+def test_xdp_native_pass_mb(cfg):
+    """
+    Tests the XDP_PASS action for a multi-buff size.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog_frags", "xdp_native.bpf.o", "xdp.frags", 9000)
+
+    _test_pass(cfg, bpf_info, 8000)
+
+
+def _test_drop(cfg, bpf_info, msg_sz):
+    """
+    Tests the XDP_DROP action by exchanging UDP packets.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        bpf_info: BPFProgInfo object containing information about the BPF program.
+        msg_sz: Size of the test message to send.
+    """
+
+    prog_info = _load_xdp_prog(cfg, bpf_info)
+    port = rand_port()
+
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, XDPAction.DROP.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    ksft_eq(_test_udp(cfg, port, msg_sz), False, "UDP packet exchange should fail")
+    stats = _get_stats(prog_info["maps"]["map_xdp_stats"])
+
+    ksft_ne(stats[XDPStats.RX.value], 0, "RX stats should be zero")
+    ksft_eq(stats[XDPStats.RX.value], stats[XDPStats.DROP.value], "RX and DROP stats mismatch")
+
+
+def test_xdp_native_drop_sb(cfg):
+    """
+    Tests the XDP_DROP action for a signle-buff case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog", "xdp_native.bpf.o", "xdp", 1500)
+
+    _test_drop(cfg, bpf_info, 256)
+
+
+def test_xdp_native_drop_mb(cfg):
+    """
+    Tests the XDP_DROP action for a multi-buff case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog_frags", "xdp_native.bpf.o", "xdp.frags", 9000)
+
+    _test_drop(cfg, bpf_info, 8000)
+
+
+def _test_xdp_native_tx(cfg, bpf_info, payload_lens):
+    """
+    Tests the XDP_TX action.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        bpf_info: BPFProgInfo object containing the BPF program metadata.
+        payload_lens: Array of packet lengths to send.
+    """
+    cfg.require_cmd("socat", remote=True)
+    prog_info = _load_xdp_prog(cfg, bpf_info)
+    port = rand_port()
+
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, XDPAction.TX.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    expected_pkts = 0
+    for payload_len in payload_lens:
+        test_string = "".join(
+            random.choice(string.ascii_lowercase) for _ in range(payload_len)
+        )
+
+        rx_udp = f"socat -{cfg.addr_ipver} -T 2 " + \
+                 f"-u UDP-RECV:{port},reuseport STDOUT"
+
+        # Writing zero bytes to stdin gets ignored by socat,
+        # but with the shut-null flag socat generates a zero sized packet
+        # when the socket is closed.
+        tx_cmd_suffix = ",shut-null" if payload_len == 0 else ""
+        tx_udp = f"echo -n {test_string} | socat -t 2 " + \
+                 f"-u STDIN UDP:{cfg.baddr}:{port}{tx_cmd_suffix}"
+
+        with bkg(rx_udp, host=cfg.remote, exit_wait=True) as rnc:
+            wait_port_listen(port, proto="udp", host=cfg.remote)
+            cmd(tx_udp, host=cfg.remote, shell=True)
+
+        ksft_eq(rnc.stdout.strip(), test_string, "UDP packet exchange failed")
+
+        expected_pkts += 1
+        stats = _get_stats(prog_info["maps"]["map_xdp_stats"])
+        ksft_eq(stats[XDPStats.RX.value], expected_pkts, "RX stats mismatch")
+        ksft_eq(stats[XDPStats.TX.value], expected_pkts, "TX stats mismatch")
+
+
+def test_xdp_native_tx_sb(cfg):
+    """
+    Tests the XDP_TX action for a single-buff case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog", "xdp_native.bpf.o", "xdp", 1500)
+
+    # Ensure there's enough room for an ETH / IP / UDP header
+    pkt_hdr_len = 42 if cfg.addr_ipver == "4" else 62
+
+    _test_xdp_native_tx(cfg, bpf_info, [0, 1500 // 2, 1500 - pkt_hdr_len])
+
+
+def test_xdp_native_tx_mb(cfg):
+    """
+    Tests the XDP_TX action for a multi-buff case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    bpf_info = BPFProgInfo("xdp_prog_frags", "xdp_native.bpf.o",
+                           "xdp.frags", 9000)
+    # The first packet ensures we exercise the fragmented code path.
+    # And the subsequent 0-sized packet ensures the driver
+    # reinitializes xdp_buff correctly.
+    _test_xdp_native_tx(cfg, bpf_info, [8000, 0])
+
+
+def _validate_res(res, offset_lst, pkt_sz_lst):
+    """
+    Validates the result of a test.
+
+    Args:
+        res: The result of the test, which should be a dictionary with a "status" key.
+
+    Raises:
+        KsftFailEx: If the test fails to pass any combination of offset and packet size.
+    """
+    if "status" not in res:
+        raise KsftFailEx("Missing 'status' key in result dictionary")
+
+    # Validate that not a single case was successful
+    if res["status"] == "fail":
+        if res["offset"] == offset_lst[0] and res["pkt_sz"] == pkt_sz_lst[0]:
+            raise KsftFailEx(f"{res['reason']}")
+
+        # Get the previous offset and packet size to report the successful run
+        tmp_idx = offset_lst.index(res["offset"])
+        prev_offset = offset_lst[tmp_idx - 1]
+        if tmp_idx == 0:
+            tmp_idx = pkt_sz_lst.index(res["pkt_sz"])
+            prev_pkt_sz = pkt_sz_lst[tmp_idx - 1]
+        else:
+            prev_pkt_sz = res["pkt_sz"]
+
+        # Use these values for error reporting
+        ksft_pr(
+        f"Failed run: pkt_sz {res['pkt_sz']}, offset {res['offset']}. "
+        f"Last successful run: pkt_sz {prev_pkt_sz}, offset {prev_offset}. "
+        f"Reason: {res['reason']}"
+        )
+
+
+def _check_for_failures(recvd_str, stats):
+    """
+    Checks for common failures while adjusting headroom or tailroom.
+
+    Args:
+        recvd_str: The string received from the remote host after sending a test string.
+        stats: A dictionary containing formatted packet statistics for various XDP actions.
+
+    Returns:
+        str: A string describing the failure reason if a failure is detected, otherwise None.
+    """
+
+    # Any adjustment failure result in an abort hence, we track this counter
+    if stats[XDPStats.ABORT.value] != 0:
+        return "Adjustment failed"
+
+    # Since we are using aggregate stats for a single test across all offsets and packet sizes
+    # we can't use RX stats only to track data exchange failure without taking a previous
+    # snapshot. An easier way is to simply check for non-zero length of received string.
+    if len(recvd_str) == 0:
+        return "Data exchange failed"
+
+    # Check for RX and PASS stats mismatch. Ideally, they should be equal for a successful run
+    if stats[XDPStats.RX.value] != stats[XDPStats.PASS.value]:
+        return "RX stats mismatch"
+
+    return None
+
+
+def _test_xdp_native_tail_adjst(cfg, pkt_sz_lst, offset_lst):
+    """
+    Tests the XDP tail adjustment functionality.
+
+    This function loads the appropriate XDP program based on the provided
+    program name and configures the XDP map for tail adjustment. It then
+    validates the tail adjustment by sending and receiving UDP packets
+    with specified packet sizes and offsets.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        prog: Name of the XDP program to load.
+        pkt_sz_lst: List of packet sizes to test.
+        offset_lst: List of offsets to validate support for tail adjustment.
+
+    Returns:
+        dict: A dictionary with test status and failure details if applicable.
+    """
+    port = rand_port()
+    bpf_info = BPFProgInfo("xdp_prog_frags", "xdp_native.bpf.o", "xdp.frags", 9000)
+
+    prog_info = _load_xdp_prog(cfg, bpf_info)
+
+    # Configure the XDP map for tail adjustment
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, XDPAction.TAIL_ADJST.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    for offset in offset_lst:
+        tag = format(random.randint(65, 90), "02x")
+
+        _set_xdp_map("map_xdp_setup", TestConfig.ADJST_OFFSET.value, offset)
+        if offset > 0:
+            _set_xdp_map("map_xdp_setup", TestConfig.ADJST_TAG.value, int(tag, 16))
+
+        for pkt_sz in pkt_sz_lst:
+            test_str = "".join(random.choice(string.ascii_lowercase) for _ in range(pkt_sz))
+            recvd_str = _exchg_udp(cfg, port, test_str)
+            stats = _get_stats(prog_info["maps"]["map_xdp_stats"])
+
+            failure = _check_for_failures(recvd_str, stats)
+            if failure is not None:
+                return {
+                    "status": "fail",
+                    "reason": failure,
+                    "offset": offset,
+                    "pkt_sz": pkt_sz,
+                }
+
+            # Validate data content based on offset direction
+            expected_data = None
+            if offset > 0:
+                expected_data = test_str + (offset * chr(int(tag, 16)))
+            else:
+                expected_data = test_str[0:pkt_sz + offset]
+
+            if recvd_str != expected_data:
+                return {
+                    "status": "fail",
+                    "reason": "Data mismatch",
+                    "offset": offset,
+                    "pkt_sz": pkt_sz,
+                }
+
+    return {"status": "pass"}
+
+
+def test_xdp_native_adjst_tail_grow_data(cfg):
+    """
+    Tests the XDP tail adjustment by growing packet data.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    pkt_sz_lst = [512, 1024, 2048]
+    offset_lst = [1, 16, 32, 64, 128, 256]
+    res = _test_xdp_native_tail_adjst(
+        cfg,
+        pkt_sz_lst,
+        offset_lst,
+    )
+
+    _validate_res(res, offset_lst, pkt_sz_lst)
+
+
+def test_xdp_native_adjst_tail_shrnk_data(cfg):
+    """
+    Tests the XDP tail adjustment by shrinking packet data.
+
+    Args:
+        cfg: Configuration object containing network settings.
+    """
+    pkt_sz_lst = [512, 1024, 2048]
+    offset_lst = [-16, -32, -64, -128, -256]
+    res = _test_xdp_native_tail_adjst(
+        cfg,
+        pkt_sz_lst,
+        offset_lst,
+    )
+
+    _validate_res(res, offset_lst, pkt_sz_lst)
+
+
+def get_hds_thresh(cfg):
+    """
+    Retrieves the header data split (HDS) threshold for a network interface.
+
+    Args:
+        cfg: Configuration object containing network settings.
+
+    Returns:
+        The HDS threshold value. If the threshold is not supported or an error occurs,
+        a default value of 1500 is returned.
+    """
+    ethnl = cfg.ethnl
+    hds_thresh = 1500
+
+    try:
+        rings = ethnl.rings_get({'header': {'dev-index': cfg.ifindex}})
+        if 'hds-thresh' not in rings:
+            ksft_pr(f'hds-thresh not supported. Using default: {hds_thresh}')
+            return hds_thresh
+        hds_thresh = rings['hds-thresh']
+    except NlError as e:
+        ksft_pr(f"Failed to get rings: {e}. Using default: {hds_thresh}")
+
+    return hds_thresh
+
+
+def _test_xdp_native_head_adjst(cfg, prog, pkt_sz_lst, offset_lst):
+    """
+    Tests the XDP head adjustment action for a multi-buffer case.
+
+    Args:
+        cfg: Configuration object containing network settings.
+        ethnl: Network namespace or link object (not used in this function).
+
+    This function sets up the packet size and offset lists, then performs
+    the head adjustment test by sending and receiving UDP packets.
+    """
+    cfg.require_cmd("socat", remote=True)
+
+    prog_info = _load_xdp_prog(cfg, BPFProgInfo(prog, "xdp_native.bpf.o", "xdp.frags", 9000))
+    port = rand_port()
+
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, XDPAction.HEAD_ADJST.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    hds_thresh = get_hds_thresh(cfg)
+    for offset in offset_lst:
+        for pkt_sz in pkt_sz_lst:
+            # The "head" buffer must contain at least the Ethernet header
+            # after we eat into it. We send large-enough packets, but if HDS
+            # is enabled head will only contain headers. Don't try to eat
+            # more than 28 bytes (UDPv4 + eth hdr left: (14 + 20 + 8) - 14)
+            l2_cut_off = 28 if cfg.addr_ipver == 4 else 48
+            if pkt_sz > hds_thresh and offset > l2_cut_off:
+                ksft_pr(
+                f"Failed run: pkt_sz ({pkt_sz}) > HDS threshold ({hds_thresh}) and "
+                f"offset {offset} > {l2_cut_off}"
+                )
+                return {"status": "pass"}
+
+            test_str = ''.join(random.choice(string.ascii_lowercase) for _ in range(pkt_sz))
+            tag = format(random.randint(65, 90), '02x')
+
+            _set_xdp_map("map_xdp_setup",
+                     TestConfig.ADJST_OFFSET.value,
+                     offset)
+            _set_xdp_map("map_xdp_setup", TestConfig.ADJST_TAG.value, int(tag, 16))
+            _set_xdp_map("map_xdp_setup", TestConfig.ADJST_OFFSET.value, offset)
+
+            recvd_str = _exchg_udp(cfg, port, test_str)
+
+            # Check for failures around adjustment and data exchange
+            failure = _check_for_failures(recvd_str, _get_stats(prog_info['maps']['map_xdp_stats']))
+            if failure is not None:
+                return {
+                    "status": "fail",
+                    "reason": failure,
+                    "offset": offset,
+                    "pkt_sz": pkt_sz
+                }
+
+            # Validate data content based on offset direction
+            expected_data = None
+            if offset < 0:
+                expected_data = chr(int(tag, 16)) * (0 - offset) + test_str
+            else:
+                expected_data = test_str[offset:]
+
+            if recvd_str != expected_data:
+                return {
+                    "status": "fail",
+                    "reason": "Data mismatch",
+                    "offset": offset,
+                    "pkt_sz": pkt_sz
+                }
+
+    return {"status": "pass"}
+
+
+def test_xdp_native_adjst_head_grow_data(cfg):
+    """
+    Tests the XDP headroom growth support.
+
+    Args:
+        cfg: Configuration object containing network settings.
+
+    This function sets up the packet size and offset lists, then calls the
+    _test_xdp_native_head_adjst_mb function to perform the actual test. The
+    test is passed if the headroom is successfully extended for given packet
+    sizes and offsets.
+    """
+    pkt_sz_lst = [512, 1024, 2048]
+
+    # Negative values result in headroom shrinking, resulting in growing of payload
+    offset_lst = [-16, -32, -64, -128, -256]
+    res = _test_xdp_native_head_adjst(cfg, "xdp_prog_frags", pkt_sz_lst, offset_lst)
+
+    _validate_res(res, offset_lst, pkt_sz_lst)
+
+
+def test_xdp_native_adjst_head_shrnk_data(cfg):
+    """
+    Tests the XDP headroom shrinking support.
+
+    Args:
+        cfg: Configuration object containing network settings.
+
+    This function sets up the packet size and offset lists, then calls the
+    _test_xdp_native_head_adjst_mb function to perform the actual test. The
+    test is passed if the headroom is successfully shrunk for given packet
+    sizes and offsets.
+    """
+    pkt_sz_lst = [512, 1024, 2048]
+
+    # Positive values result in headroom growing, resulting in shrinking of payload
+    offset_lst = [16, 32, 64, 128, 256]
+    res = _test_xdp_native_head_adjst(cfg, "xdp_prog_frags", pkt_sz_lst, offset_lst)
+
+    _validate_res(res, offset_lst, pkt_sz_lst)
+
+
+@ksft_variants([
+    KsftNamedVariant("pass", XDPAction.PASS),
+    KsftNamedVariant("drop", XDPAction.DROP),
+    KsftNamedVariant("tx", XDPAction.TX),
+])
+def test_xdp_native_qstats(cfg, act):
+    """
+    Send 1000 messages. Expect XDP action specified in @act.
+    Make sure the packets were counted to interface level qstats
+    (Rx, and Tx if act is TX).
+    """
+
+    cfg.require_cmd("socat")
+
+    bpf_info = BPFProgInfo("xdp_prog", "xdp_native.bpf.o", "xdp", 1500)
+    prog_info = _load_xdp_prog(cfg, bpf_info)
+    port = rand_port()
+
+    _set_xdp_map("map_xdp_setup", TestConfig.MODE.value, act.value)
+    _set_xdp_map("map_xdp_setup", TestConfig.PORT.value, port)
+
+    # Discard the input, but we need a listener to avoid ICMP errors
+    rx_udp = f"socat -{cfg.addr_ipver} -T 2 -u UDP-RECV:{port},reuseport " + \
+        "/dev/null"
+    # Listener runs on "remote" in case of XDP_TX
+    rx_host = cfg.remote if act == XDPAction.TX else None
+    # We want to spew 1000 packets quickly, bash seems to do a good enough job
+    # Each reopening of the socket gives us a differenot local port (for RSS)
+    tx_udp = "for _ in `seq 20`; do " \
+        f"exec 5<>/dev/udp/{cfg.addr}/{port}; " \
+        "for i in `seq 50`; do echo a >&5; done; " \
+        "exec 5>&-; done"
+
+    cfg.wait_hw_stats_settle()
+    # Qstats have more clearly defined semantics than rtnetlink.
+    # XDP is the "first layer of the stack" so XDP packets should be counted
+    # as received and sent as if the decision was made in the routing layer.
+    before = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+
+    with bkg(rx_udp, host=rx_host, exit_wait=True):
+        wait_port_listen(port, proto="udp", host=rx_host)
+        cmd(tx_udp, host=cfg.remote, shell=True)
+
+    cfg.wait_hw_stats_settle()
+    after = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+
+    expected_pkts = 1000
+    ksft_ge(after['rx-packets'] - before['rx-packets'], expected_pkts)
+    if act == XDPAction.TX:
+        ksft_ge(after['tx-packets'] - before['tx-packets'], expected_pkts)
+
+    stats = _get_stats(prog_info["maps"]["map_xdp_stats"])
+    ksft_eq(stats[XDPStats.RX.value], expected_pkts, "XDP RX stats mismatch")
+    if act == XDPAction.TX:
+        ksft_eq(stats[XDPStats.TX.value], expected_pkts, "XDP TX stats mismatch")
+
+    # Flip the ring count back and forth to make sure the stats from XDP rings
+    # don't get lost.
+    chans = cfg.ethnl.channels_get({'header': {'dev-index': cfg.ifindex}})
+    if chans.get('combined-count', 0) > 1:
+        cfg.ethnl.channels_set({'header': {'dev-index': cfg.ifindex},
+                                'combined-count': 1})
+        cfg.ethnl.channels_set({'header': {'dev-index': cfg.ifindex},
+                                'combined-count': chans['combined-count']})
+        before = after
+        after = cfg.netnl.qstats_get({"ifindex": cfg.ifindex}, dump=True)[0]
+
+        ksft_ge(after['rx-packets'], before['rx-packets'])
+        if act == XDPAction.TX:
+            ksft_ge(after['tx-packets'], before['tx-packets'])
+
+
+def main():
+    """
+    Main function to execute the XDP tests.
+
+    This function runs a series of tests to validate the XDP support for
+    both the single and multi-buffer. It uses the NetDrvEpEnv context
+    manager to manage the network driver environment and the ksft_run
+    function to execute the tests.
+    """
+    with NetDrvEpEnv(__file__) as cfg:
+        cfg.ethnl = EthtoolFamily()
+        cfg.netnl = NetdevFamily()
+        ksft_run(
+            [
+                test_xdp_native_pass_sb,
+                test_xdp_native_pass_mb,
+                test_xdp_native_drop_sb,
+                test_xdp_native_drop_mb,
+                test_xdp_native_tx_sb,
+                test_xdp_native_tx_mb,
+                test_xdp_native_adjst_tail_grow_data,
+                test_xdp_native_adjst_tail_shrnk_data,
+                test_xdp_native_adjst_head_grow_data,
+                test_xdp_native_adjst_head_shrnk_data,
+                test_xdp_native_qstats,
+            ],
+            args=(cfg,))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/drivers/ntsync/.gitignore b/tools/testing/selftests/drivers/ntsync/.gitignore
new file mode 100644
index 000000000000..848573a3d3ea
--- /dev/null
+++ b/tools/testing/selftests/drivers/ntsync/.gitignore
@@ -0,0 +1 @@
+ntsync
diff --git a/tools/testing/selftests/drivers/ntsync/Makefile b/tools/testing/selftests/drivers/ntsync/Makefile
new file mode 100644
index 000000000000..dbf2b055c0b2
--- /dev/null
+++ b/tools/testing/selftests/drivers/ntsync/Makefile
@@ -0,0 +1,7 @@
+# SPDX-LICENSE-IDENTIFIER: GPL-2.0-only
+TEST_GEN_PROGS := ntsync
+
+CFLAGS += $(KHDR_INCLUDES)
+LDLIBS += -lpthread
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/drivers/ntsync/config b/tools/testing/selftests/drivers/ntsync/config
new file mode 100644
index 000000000000..60539c826d06
--- /dev/null
+++ b/tools/testing/selftests/drivers/ntsync/config
@@ -0,0 +1 @@
+CONFIG_WINESYNC=y
diff --git a/tools/testing/selftests/drivers/ntsync/ntsync.c b/tools/testing/selftests/drivers/ntsync/ntsync.c
new file mode 100644
index 000000000000..e6a37214aa46
--- /dev/null
+++ b/tools/testing/selftests/drivers/ntsync/ntsync.c
@@ -0,0 +1,1343 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Various unit tests for the "ntsync" synchronization primitive driver.
+ *
+ * Copyright (C) 2021-2022 Elizabeth Figura <zfigura@codeweavers.com>
+ */
+
+#define _GNU_SOURCE
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <time.h>
+#include <pthread.h>
+#include <linux/ntsync.h>
+#include "kselftest_harness.h"
+
+static int read_sem_state(int sem, __u32 *count, __u32 *max)
+{
+	struct ntsync_sem_args args;
+	int ret;
+
+	memset(&args, 0xcc, sizeof(args));
+	ret = ioctl(sem, NTSYNC_IOC_SEM_READ, &args);
+	*count = args.count;
+	*max = args.max;
+	return ret;
+}
+
+#define check_sem_state(sem, count, max) \
+	({ \
+		__u32 __count, __max; \
+		int ret = read_sem_state((sem), &__count, &__max); \
+		EXPECT_EQ(0, ret); \
+		EXPECT_EQ((count), __count); \
+		EXPECT_EQ((max), __max); \
+	})
+
+static int release_sem(int sem, __u32 *count)
+{
+	return ioctl(sem, NTSYNC_IOC_SEM_RELEASE, count);
+}
+
+static int read_mutex_state(int mutex, __u32 *count, __u32 *owner)
+{
+	struct ntsync_mutex_args args;
+	int ret;
+
+	memset(&args, 0xcc, sizeof(args));
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &args);
+	*count = args.count;
+	*owner = args.owner;
+	return ret;
+}
+
+#define check_mutex_state(mutex, count, owner) \
+	({ \
+		__u32 __count, __owner; \
+		int ret = read_mutex_state((mutex), &__count, &__owner); \
+		EXPECT_EQ(0, ret); \
+		EXPECT_EQ((count), __count); \
+		EXPECT_EQ((owner), __owner); \
+	})
+
+static int unlock_mutex(int mutex, __u32 owner, __u32 *count)
+{
+	struct ntsync_mutex_args args;
+	int ret;
+
+	args.owner = owner;
+	args.count = 0xdeadbeef;
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_UNLOCK, &args);
+	*count = args.count;
+	return ret;
+}
+
+static int read_event_state(int event, __u32 *signaled, __u32 *manual)
+{
+	struct ntsync_event_args args;
+	int ret;
+
+	memset(&args, 0xcc, sizeof(args));
+	ret = ioctl(event, NTSYNC_IOC_EVENT_READ, &args);
+	*signaled = args.signaled;
+	*manual = args.manual;
+	return ret;
+}
+
+#define check_event_state(event, signaled, manual) \
+	({ \
+		__u32 __signaled, __manual; \
+		int ret = read_event_state((event), &__signaled, &__manual); \
+		EXPECT_EQ(0, ret); \
+		EXPECT_EQ((signaled), __signaled); \
+		EXPECT_EQ((manual), __manual); \
+	})
+
+static int wait_objs(int fd, unsigned long request, __u32 count,
+		     const int *objs, __u32 owner, int alert, __u32 *index)
+{
+	struct ntsync_wait_args args = {0};
+	struct timespec timeout;
+	int ret;
+
+	clock_gettime(CLOCK_MONOTONIC, &timeout);
+
+	args.timeout = timeout.tv_sec * 1000000000 + timeout.tv_nsec;
+	args.count = count;
+	args.objs = (uintptr_t)objs;
+	args.owner = owner;
+	args.index = 0xdeadbeef;
+	args.alert = alert;
+	ret = ioctl(fd, request, &args);
+	*index = args.index;
+	return ret;
+}
+
+static int wait_any(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
+{
+	return wait_objs(fd, NTSYNC_IOC_WAIT_ANY, count, objs, owner, 0, index);
+}
+
+static int wait_all(int fd, __u32 count, const int *objs, __u32 owner, __u32 *index)
+{
+	return wait_objs(fd, NTSYNC_IOC_WAIT_ALL, count, objs, owner, 0, index);
+}
+
+static int wait_any_alert(int fd, __u32 count, const int *objs,
+			  __u32 owner, int alert, __u32 *index)
+{
+	return wait_objs(fd, NTSYNC_IOC_WAIT_ANY,
+			 count, objs, owner, alert, index);
+}
+
+static int wait_all_alert(int fd, __u32 count, const int *objs,
+			  __u32 owner, int alert, __u32 *index)
+{
+	return wait_objs(fd, NTSYNC_IOC_WAIT_ALL,
+			 count, objs, owner, alert, index);
+}
+
+TEST(semaphore_state)
+{
+	struct ntsync_sem_args sem_args;
+	struct timespec timeout;
+	__u32 count, index;
+	int fd, ret, sem;
+
+	clock_gettime(CLOCK_MONOTONIC, &timeout);
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 3;
+	sem_args.max = 2;
+	sem = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_EQ(-1, sem);
+	EXPECT_EQ(EINVAL, errno);
+
+	sem_args.count = 2;
+	sem_args.max = 2;
+	sem = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, sem);
+	check_sem_state(sem, 2, 2);
+
+	count = 0;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, count);
+	check_sem_state(sem, 2, 2);
+
+	count = 1;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOVERFLOW, errno);
+	check_sem_state(sem, 2, 2);
+
+	ret = wait_any(fd, 1, &sem, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(sem, 1, 2);
+
+	ret = wait_any(fd, 1, &sem, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(sem, 0, 2);
+
+	ret = wait_any(fd, 1, &sem, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	count = 3;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOVERFLOW, errno);
+	check_sem_state(sem, 0, 2);
+
+	count = 2;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+	check_sem_state(sem, 2, 2);
+
+	ret = wait_any(fd, 1, &sem, 123, &index);
+	EXPECT_EQ(0, ret);
+	ret = wait_any(fd, 1, &sem, 123, &index);
+	EXPECT_EQ(0, ret);
+
+	count = 1;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+	check_sem_state(sem, 1, 2);
+
+	count = ~0u;
+	ret = release_sem(sem, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOVERFLOW, errno);
+	check_sem_state(sem, 1, 2);
+
+	close(sem);
+
+	close(fd);
+}
+
+TEST(mutex_state)
+{
+	struct ntsync_mutex_args mutex_args;
+	__u32 owner, count, index;
+	struct timespec timeout;
+	int fd, ret, mutex;
+
+	clock_gettime(CLOCK_MONOTONIC, &timeout);
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	mutex_args.owner = 123;
+	mutex_args.count = 0;
+	mutex = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_EQ(-1, mutex);
+	EXPECT_EQ(EINVAL, errno);
+
+	mutex_args.owner = 0;
+	mutex_args.count = 2;
+	mutex = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_EQ(-1, mutex);
+	EXPECT_EQ(EINVAL, errno);
+
+	mutex_args.owner = 123;
+	mutex_args.count = 2;
+	mutex = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, mutex);
+	check_mutex_state(mutex, 2, 123);
+
+	ret = unlock_mutex(mutex, 0, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	ret = unlock_mutex(mutex, 456, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EPERM, errno);
+	check_mutex_state(mutex, 2, 123);
+
+	ret = unlock_mutex(mutex, 123, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, count);
+	check_mutex_state(mutex, 1, 123);
+
+	ret = unlock_mutex(mutex, 123, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, count);
+	check_mutex_state(mutex, 0, 0);
+
+	ret = unlock_mutex(mutex, 123, &count);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EPERM, errno);
+
+	ret = wait_any(fd, 1, &mutex, 456, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_mutex_state(mutex, 1, 456);
+
+	ret = wait_any(fd, 1, &mutex, 456, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_mutex_state(mutex, 2, 456);
+
+	ret = unlock_mutex(mutex, 456, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, count);
+	check_mutex_state(mutex, 1, 456);
+
+	ret = wait_any(fd, 1, &mutex, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	owner = 0;
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	owner = 123;
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EPERM, errno);
+	check_mutex_state(mutex, 1, 456);
+
+	owner = 456;
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(0, ret);
+
+	memset(&mutex_args, 0xcc, sizeof(mutex_args));
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(0, mutex_args.count);
+	EXPECT_EQ(0, mutex_args.owner);
+
+	memset(&mutex_args, 0xcc, sizeof(mutex_args));
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(0, mutex_args.count);
+	EXPECT_EQ(0, mutex_args.owner);
+
+	ret = wait_any(fd, 1, &mutex, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(0, index);
+	check_mutex_state(mutex, 1, 123);
+
+	owner = 123;
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(0, ret);
+
+	memset(&mutex_args, 0xcc, sizeof(mutex_args));
+	ret = ioctl(mutex, NTSYNC_IOC_MUTEX_READ, &mutex_args);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(0, mutex_args.count);
+	EXPECT_EQ(0, mutex_args.owner);
+
+	ret = wait_any(fd, 1, &mutex, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(0, index);
+	check_mutex_state(mutex, 1, 123);
+
+	close(mutex);
+
+	mutex_args.owner = 0;
+	mutex_args.count = 0;
+	mutex = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, mutex);
+	check_mutex_state(mutex, 0, 0);
+
+	ret = wait_any(fd, 1, &mutex, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_mutex_state(mutex, 1, 123);
+
+	close(mutex);
+
+	mutex_args.owner = 123;
+	mutex_args.count = ~0u;
+	mutex = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, mutex);
+	check_mutex_state(mutex, ~0u, 123);
+
+	ret = wait_any(fd, 1, &mutex, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	close(mutex);
+
+	close(fd);
+}
+
+TEST(manual_event_state)
+{
+	struct ntsync_event_args event_args;
+	__u32 index, signaled;
+	int fd, event, ret;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	event_args.manual = 1;
+	event_args.signaled = 0;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+	check_event_state(event, 0, 1);
+
+	signaled = 0xdeadbeef;
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(event, 1, 1);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+	check_event_state(event, 1, 1);
+
+	ret = wait_any(fd, 1, &event, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_event_state(event, 1, 1);
+
+	signaled = 0xdeadbeef;
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+	check_event_state(event, 0, 1);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(event, 0, 1);
+
+	ret = wait_any(fd, 1, &event, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+	check_event_state(event, 0, 1);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(event, 0, 1);
+
+	close(event);
+
+	close(fd);
+}
+
+TEST(auto_event_state)
+{
+	struct ntsync_event_args event_args;
+	__u32 index, signaled;
+	int fd, event, ret;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	event_args.manual = 0;
+	event_args.signaled = 1;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+
+	check_event_state(event, 1, 0);
+
+	signaled = 0xdeadbeef;
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+	check_event_state(event, 1, 0);
+
+	ret = wait_any(fd, 1, &event, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_event_state(event, 0, 0);
+
+	signaled = 0xdeadbeef;
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(event, 0, 0);
+
+	ret = wait_any(fd, 1, &event, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+	check_event_state(event, 0, 0);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(event, 0, 0);
+
+	close(event);
+
+	close(fd);
+}
+
+TEST(test_wait_any)
+{
+	int objs[NTSYNC_MAX_WAIT_COUNT + 1], fd, ret;
+	struct ntsync_mutex_args mutex_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	__u32 owner, index, count, i;
+	struct timespec timeout;
+
+	clock_gettime(CLOCK_MONOTONIC, &timeout);
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 2;
+	sem_args.max = 3;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	mutex_args.owner = 0;
+	mutex_args.count = 0;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, objs[1]);
+
+	ret = wait_any(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 1, 3);
+	check_mutex_state(objs[1], 0, 0);
+
+	ret = wait_any(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 0, 0);
+
+	ret = wait_any(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, index);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 1, 123);
+
+	count = 1;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+
+	ret = wait_any(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 1, 123);
+
+	ret = wait_any(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, index);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 2, 123);
+
+	ret = wait_any(fd, 2, objs, 456, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	owner = 123;
+	ret = ioctl(objs[1], NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_any(fd, 2, objs, 456, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	EXPECT_EQ(1, index);
+
+	ret = wait_any(fd, 2, objs, 456, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, index);
+
+	close(objs[1]);
+
+	/* test waiting on the same object twice */
+
+	count = 2;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+
+	objs[1] = objs[0];
+	ret = wait_any(fd, 2, objs, 456, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 1, 3);
+
+	ret = wait_any(fd, 0, NULL, 456, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	for (i = 1; i < NTSYNC_MAX_WAIT_COUNT + 1; ++i)
+		objs[i] = objs[0];
+
+	ret = wait_any(fd, NTSYNC_MAX_WAIT_COUNT, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = wait_any(fd, NTSYNC_MAX_WAIT_COUNT + 1, objs, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	ret = wait_any(fd, -1, objs, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	close(objs[0]);
+
+	close(fd);
+}
+
+TEST(test_wait_all)
+{
+	struct ntsync_event_args event_args = {0};
+	struct ntsync_mutex_args mutex_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	__u32 owner, index, count;
+	int objs[2], fd, ret;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 2;
+	sem_args.max = 3;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	mutex_args.owner = 0;
+	mutex_args.count = 0;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, objs[1]);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 1, 3);
+	check_mutex_state(objs[1], 1, 123);
+
+	ret = wait_all(fd, 2, objs, 456, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+	check_sem_state(objs[0], 1, 3);
+	check_mutex_state(objs[1], 1, 123);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 2, 123);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+	check_sem_state(objs[0], 0, 3);
+	check_mutex_state(objs[1], 2, 123);
+
+	count = 3;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 2, 3);
+	check_mutex_state(objs[1], 3, 123);
+
+	owner = 123;
+	ret = ioctl(objs[1], NTSYNC_IOC_MUTEX_KILL, &owner);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EOWNERDEAD, errno);
+	check_sem_state(objs[0], 1, 3);
+	check_mutex_state(objs[1], 1, 123);
+
+	close(objs[1]);
+
+	event_args.manual = true;
+	event_args.signaled = true;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, objs[1]);
+
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+	check_sem_state(objs[0], 0, 3);
+	check_event_state(objs[1], 1, 1);
+
+	close(objs[1]);
+
+	/* test waiting on the same object twice */
+	objs[1] = objs[0];
+	ret = wait_all(fd, 2, objs, 123, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	close(objs[0]);
+
+	close(fd);
+}
+
+struct wake_args {
+	int fd;
+	int obj;
+};
+
+struct wait_args {
+	int fd;
+	unsigned long request;
+	struct ntsync_wait_args *args;
+	int ret;
+	int err;
+};
+
+static void *wait_thread(void *arg)
+{
+	struct wait_args *args = arg;
+
+	args->ret = ioctl(args->fd, args->request, args->args);
+	args->err = errno;
+	return NULL;
+}
+
+static __u64 get_abs_timeout(unsigned int ms)
+{
+	struct timespec timeout;
+	clock_gettime(CLOCK_MONOTONIC, &timeout);
+	return (timeout.tv_sec * 1000000000) + timeout.tv_nsec + (ms * 1000000);
+}
+
+static int wait_for_thread(pthread_t thread, unsigned int ms)
+{
+	struct timespec timeout;
+
+	clock_gettime(CLOCK_REALTIME, &timeout);
+	timeout.tv_nsec += ms * 1000000;
+	timeout.tv_sec += (timeout.tv_nsec / 1000000000);
+	timeout.tv_nsec %= 1000000000;
+	return pthread_timedjoin_np(thread, NULL, &timeout);
+}
+
+TEST(wake_any)
+{
+	struct ntsync_event_args event_args = {0};
+	struct ntsync_mutex_args mutex_args = {0};
+	struct ntsync_wait_args wait_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	struct wait_args thread_args;
+	__u32 count, index, signaled;
+	int objs[2], fd, ret;
+	pthread_t thread;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 0;
+	sem_args.max = 3;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	mutex_args.owner = 123;
+	mutex_args.count = 1;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, objs[1]);
+
+	/* test waking the semaphore */
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 2;
+	wait_args.owner = 456;
+	wait_args.index = 0xdeadbeef;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ANY;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	count = 1;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+	check_sem_state(objs[0], 0, 3);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(0, wait_args.index);
+
+	/* test waking the mutex */
+
+	/* first grab it again for owner 123 */
+	ret = wait_any(fd, 1, &objs[1], 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.owner = 456;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = unlock_mutex(objs[1], 123, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, count);
+
+	ret = pthread_tryjoin_np(thread, NULL);
+	EXPECT_EQ(EBUSY, ret);
+
+	ret = unlock_mutex(objs[1], 123, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, mutex_args.count);
+	check_mutex_state(objs[1], 1, 456);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(1, wait_args.index);
+
+	close(objs[1]);
+
+	/* test waking events */
+
+	event_args.manual = false;
+	event_args.signaled = false;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, objs[1]);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(objs[1], NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(objs[1], 0, 0);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(1, wait_args.index);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(objs[1], NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(objs[1], 0, 0);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(1, wait_args.index);
+
+	close(objs[1]);
+
+	event_args.manual = true;
+	event_args.signaled = false;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, objs[1]);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(objs[1], NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(objs[1], 1, 1);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(1, wait_args.index);
+
+	ret = ioctl(objs[1], NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(objs[1], NTSYNC_IOC_EVENT_PULSE, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+	check_event_state(objs[1], 0, 1);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(1, wait_args.index);
+
+	/* delete an object while it's being waited on */
+
+	wait_args.timeout = get_abs_timeout(200);
+	wait_args.owner = 123;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	close(objs[0]);
+	close(objs[1]);
+
+	ret = wait_for_thread(thread, 200);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(-1, thread_args.ret);
+	EXPECT_EQ(ETIMEDOUT, thread_args.err);
+
+	close(fd);
+}
+
+TEST(wake_all)
+{
+	struct ntsync_event_args manual_event_args = {0};
+	struct ntsync_event_args auto_event_args = {0};
+	struct ntsync_mutex_args mutex_args = {0};
+	struct ntsync_wait_args wait_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	struct wait_args thread_args;
+	__u32 count, index, signaled;
+	int objs[4], fd, ret;
+	pthread_t thread;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 0;
+	sem_args.max = 3;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	mutex_args.owner = 123;
+	mutex_args.count = 1;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, objs[1]);
+
+	manual_event_args.manual = true;
+	manual_event_args.signaled = true;
+	objs[2] = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &manual_event_args);
+	EXPECT_LE(0, objs[2]);
+
+	auto_event_args.manual = false;
+	auto_event_args.signaled = true;
+	objs[3] = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &auto_event_args);
+	EXPECT_EQ(0, objs[3]);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 4;
+	wait_args.owner = 456;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ALL;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	count = 1;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+
+	ret = pthread_tryjoin_np(thread, NULL);
+	EXPECT_EQ(EBUSY, ret);
+
+	check_sem_state(objs[0], 1, 3);
+
+	ret = wait_any(fd, 1, &objs[0], 123, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = unlock_mutex(objs[1], 123, &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, count);
+
+	ret = pthread_tryjoin_np(thread, NULL);
+	EXPECT_EQ(EBUSY, ret);
+
+	check_mutex_state(objs[1], 0, 0);
+
+	ret = ioctl(objs[2], NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+
+	count = 2;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, count);
+	check_sem_state(objs[0], 2, 3);
+
+	ret = ioctl(objs[3], NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, signaled);
+
+	ret = ioctl(objs[2], NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+
+	ret = ioctl(objs[3], NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, signaled);
+
+	check_sem_state(objs[0], 1, 3);
+	check_mutex_state(objs[1], 1, 456);
+	check_event_state(objs[2], 1, 1);
+	check_event_state(objs[3], 0, 0);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+
+	/* delete an object while it's being waited on */
+
+	wait_args.timeout = get_abs_timeout(200);
+	wait_args.owner = 123;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	close(objs[0]);
+	close(objs[1]);
+	close(objs[2]);
+	close(objs[3]);
+
+	ret = wait_for_thread(thread, 200);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(-1, thread_args.ret);
+	EXPECT_EQ(ETIMEDOUT, thread_args.err);
+
+	close(fd);
+}
+
+TEST(alert_any)
+{
+	struct ntsync_event_args event_args = {0};
+	struct ntsync_wait_args wait_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	__u32 index, count, signaled;
+	struct wait_args thread_args;
+	int objs[2], event, fd, ret;
+	pthread_t thread;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 0;
+	sem_args.max = 2;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	sem_args.count = 1;
+	sem_args.max = 2;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[1]);
+
+	event_args.manual = true;
+	event_args.signaled = true;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+
+	ret = wait_any_alert(fd, 0, NULL, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_any_alert(fd, 0, NULL, 123, event, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_any_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(1, index);
+
+	ret = wait_any_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, index);
+
+	/* test wakeup via alert */
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 2;
+	wait_args.owner = 123;
+	wait_args.index = 0xdeadbeef;
+	wait_args.alert = event;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ANY;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(2, wait_args.index);
+
+	close(event);
+
+	/* test with an auto-reset event */
+
+	event_args.manual = false;
+	event_args.signaled = true;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+
+	count = 1;
+	ret = release_sem(objs[0], &count);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_any_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = wait_any_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, index);
+
+	ret = wait_any_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	close(event);
+
+	close(objs[0]);
+	close(objs[1]);
+
+	close(fd);
+}
+
+TEST(alert_all)
+{
+	struct ntsync_event_args event_args = {0};
+	struct ntsync_wait_args wait_args = {0};
+	struct ntsync_sem_args sem_args = {0};
+	struct wait_args thread_args;
+	__u32 index, count, signaled;
+	int objs[2], event, fd, ret;
+	pthread_t thread;
+
+	fd = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	sem_args.count = 2;
+	sem_args.max = 2;
+	objs[0] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[0]);
+
+	sem_args.count = 1;
+	sem_args.max = 2;
+	objs[1] = ioctl(fd, NTSYNC_IOC_CREATE_SEM, &sem_args);
+	EXPECT_LE(0, objs[1]);
+
+	event_args.manual = true;
+	event_args.signaled = true;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+
+	ret = wait_all_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = wait_all_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, index);
+
+	/* test wakeup via alert */
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_RESET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	wait_args.timeout = get_abs_timeout(1000);
+	wait_args.objs = (uintptr_t)objs;
+	wait_args.count = 2;
+	wait_args.owner = 123;
+	wait_args.index = 0xdeadbeef;
+	wait_args.alert = event;
+	thread_args.fd = fd;
+	thread_args.args = &wait_args;
+	thread_args.request = NTSYNC_IOC_WAIT_ALL;
+	ret = pthread_create(&thread, NULL, wait_thread, &thread_args);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(ETIMEDOUT, ret);
+
+	ret = ioctl(event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_for_thread(thread, 100);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, thread_args.ret);
+	EXPECT_EQ(2, wait_args.index);
+
+	close(event);
+
+	/* test with an auto-reset event */
+
+	event_args.manual = false;
+	event_args.signaled = true;
+	event = ioctl(fd, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, event);
+
+	count = 2;
+	ret = release_sem(objs[1], &count);
+	EXPECT_EQ(0, ret);
+
+	ret = wait_all_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, index);
+
+	ret = wait_all_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(2, index);
+
+	ret = wait_all_alert(fd, 2, objs, 123, event, &index);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(ETIMEDOUT, errno);
+
+	close(event);
+
+	close(objs[0]);
+	close(objs[1]);
+
+	close(fd);
+}
+
+#define STRESS_LOOPS 10000
+#define STRESS_THREADS 4
+
+static unsigned int stress_counter;
+static int stress_device, stress_start_event, stress_mutex;
+
+static void *stress_thread(void *arg)
+{
+	struct ntsync_wait_args wait_args = {0};
+	__u32 index, count, i;
+	int ret;
+
+	wait_args.timeout = UINT64_MAX;
+	wait_args.count = 1;
+	wait_args.objs = (uintptr_t)&stress_start_event;
+	wait_args.owner = gettid();
+	wait_args.index = 0xdeadbeef;
+
+	ioctl(stress_device, NTSYNC_IOC_WAIT_ANY, &wait_args);
+
+	wait_args.objs = (uintptr_t)&stress_mutex;
+
+	for (i = 0; i < STRESS_LOOPS; ++i) {
+		ioctl(stress_device, NTSYNC_IOC_WAIT_ANY, &wait_args);
+
+		++stress_counter;
+
+		unlock_mutex(stress_mutex, wait_args.owner, &count);
+	}
+
+	return NULL;
+}
+
+TEST(stress_wait)
+{
+	struct ntsync_event_args event_args;
+	struct ntsync_mutex_args mutex_args;
+	pthread_t threads[STRESS_THREADS];
+	__u32 signaled, i;
+	int ret;
+
+	stress_device = open("/dev/ntsync", O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, stress_device);
+
+	mutex_args.owner = 0;
+	mutex_args.count = 0;
+	stress_mutex = ioctl(stress_device, NTSYNC_IOC_CREATE_MUTEX, &mutex_args);
+	EXPECT_LE(0, stress_mutex);
+
+	event_args.manual = 1;
+	event_args.signaled = 0;
+	stress_start_event = ioctl(stress_device, NTSYNC_IOC_CREATE_EVENT, &event_args);
+	EXPECT_LE(0, stress_start_event);
+
+	for (i = 0; i < STRESS_THREADS; ++i)
+		pthread_create(&threads[i], NULL, stress_thread, NULL);
+
+	ret = ioctl(stress_start_event, NTSYNC_IOC_EVENT_SET, &signaled);
+	EXPECT_EQ(0, ret);
+
+	for (i = 0; i < STRESS_THREADS; ++i) {
+		ret = pthread_join(threads[i], NULL);
+		EXPECT_EQ(0, ret);
+	}
+
+	EXPECT_EQ(STRESS_LOOPS * STRESS_THREADS, stress_counter);
+
+	close(stress_start_event);
+	close(stress_mutex);
+	close(stress_device);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/drivers/platform/x86/intel/ifs/Makefile b/tools/testing/selftests/drivers/platform/x86/intel/ifs/Makefile
new file mode 100644
index 000000000000..03d0449d307c
--- /dev/null
+++ b/tools/testing/selftests/drivers/platform/x86/intel/ifs/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for ifs(In Field Scan) selftests
+
+TEST_PROGS := test_ifs.sh
+
+include ../../../../../lib.mk
diff --git a/tools/testing/selftests/drivers/platform/x86/intel/ifs/test_ifs.sh b/tools/testing/selftests/drivers/platform/x86/intel/ifs/test_ifs.sh
new file mode 100755
index 000000000000..8b68964b29f4
--- /dev/null
+++ b/tools/testing/selftests/drivers/platform/x86/intel/ifs/test_ifs.sh
@@ -0,0 +1,494 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test the functionality of the Intel IFS(In Field Scan) driver.
+#
+
+# Matched with kselftest framework: tools/testing/selftests/kselftest.h
+readonly KSFT_PASS=0
+readonly KSFT_FAIL=1
+readonly KSFT_XFAIL=2
+readonly KSFT_SKIP=4
+
+readonly CPU_SYSFS="/sys/devices/system/cpu"
+readonly CPU_OFFLINE_SYSFS="${CPU_SYSFS}/offline"
+readonly IMG_PATH="/lib/firmware/intel/ifs_0"
+readonly IFS_SCAN_MODE="0"
+readonly IFS_ARRAY_BIST_SCAN_MODE="1"
+readonly IFS_PATH="/sys/devices/virtual/misc/intel_ifs"
+readonly IFS_SCAN_SYSFS_PATH="${IFS_PATH}_${IFS_SCAN_MODE}"
+readonly IFS_ARRAY_BIST_SYSFS_PATH="${IFS_PATH}_${IFS_ARRAY_BIST_SCAN_MODE}"
+readonly RUN_TEST="run_test"
+readonly STATUS="status"
+readonly DETAILS="details"
+readonly STATUS_PASS="pass"
+readonly PASS="PASS"
+readonly FAIL="FAIL"
+readonly INFO="INFO"
+readonly XFAIL="XFAIL"
+readonly SKIP="SKIP"
+readonly IFS_NAME="intel_ifs"
+readonly ALL="all"
+readonly SIBLINGS="siblings"
+
+# Matches arch/x86/include/asm/intel-family.h and
+# drivers/platform/x86/intel/ifs/core.c requirement as follows
+readonly SAPPHIRERAPIDS_X="8f"
+readonly EMERALDRAPIDS_X="cf"
+
+readonly INTEL_FAM6="06"
+
+LOOP_TIMES=3
+FML=""
+MODEL=""
+STEPPING=""
+CPU_FMS=""
+TRUE="true"
+FALSE="false"
+RESULT=$KSFT_PASS
+IMAGE_NAME=""
+INTERVAL_TIME=1
+OFFLINE_CPUS=""
+# For IFS cleanup tags
+ORIGIN_IFS_LOADED=""
+IFS_IMAGE_NEED_RESTORE=$FALSE
+IFS_LOG="/tmp/ifs_logs.$$"
+RANDOM_CPU=""
+DEFAULT_IMG_ID=""
+
+append_log()
+{
+	echo -e "$1" | tee -a "$IFS_LOG"
+}
+
+online_offline_cpu_list()
+{
+	local on_off=$1
+	local target_cpus=$2
+	local cpu=""
+	local cpu_start=""
+	local cpu_end=""
+	local i=""
+
+	if [[ -n "$target_cpus" ]]; then
+		for cpu in $(echo "$target_cpus" | tr ',' ' '); do
+			if [[ "$cpu" == *"-"* ]]; then
+				cpu_start=""
+				cpu_end=""
+				i=""
+				cpu_start=$(echo "$cpu" | cut -d "-" -f 1)
+				cpu_end=$(echo "$cpu" | cut -d "-" -f 2)
+				for((i=cpu_start;i<=cpu_end;i++)); do
+					append_log "[$INFO] echo $on_off > \
+${CPU_SYSFS}/cpu${i}/online"
+					echo "$on_off" > "$CPU_SYSFS"/cpu"$i"/online
+				done
+			else
+				set_target_cpu "$on_off" "$cpu"
+			fi
+		done
+	fi
+}
+
+ifs_scan_result_summary()
+{
+	local failed_info pass_num skip_num fail_num
+
+	if [[ -e "$IFS_LOG" ]]; then
+		failed_info=$(grep ^"\[${FAIL}\]" "$IFS_LOG")
+		fail_num=$(grep -c ^"\[${FAIL}\]" "$IFS_LOG")
+		skip_num=$(grep -c ^"\[${SKIP}\]" "$IFS_LOG")
+		pass_num=$(grep -c ^"\[${PASS}\]" "$IFS_LOG")
+
+		if [[ "$fail_num" -ne 0 ]]; then
+			RESULT=$KSFT_FAIL
+			echo "[$INFO] IFS test failure summary:"
+			echo "$failed_info"
+		elif [[ "$skip_num" -ne 0 ]]; then
+			RESULT=$KSFT_SKIP
+		fi
+			echo "[$INFO] IFS test pass:$pass_num, skip:$skip_num, fail:$fail_num"
+	else
+		echo "[$INFO] No file $IFS_LOG for IFS scan summary"
+	fi
+}
+
+ifs_cleanup()
+{
+	echo "[$INFO] Restore environment after IFS test"
+
+	# Restore ifs origin image if origin image backup step is needed
+	[[ "$IFS_IMAGE_NEED_RESTORE" == "$TRUE" ]] && {
+		mv -f "$IMG_PATH"/"$IMAGE_NAME"_origin "$IMG_PATH"/"$IMAGE_NAME"
+	}
+
+	# Restore the CPUs to the state before testing
+	[[ -z "$OFFLINE_CPUS" ]] || online_offline_cpu_list "0" "$OFFLINE_CPUS"
+
+	lsmod | grep -q "$IFS_NAME" && [[ "$ORIGIN_IFS_LOADED" == "$FALSE" ]] && {
+		echo "[$INFO] modprobe -r $IFS_NAME"
+		modprobe -r "$IFS_NAME"
+	}
+
+	ifs_scan_result_summary
+	[[ -e "$IFS_LOG" ]] && rm -rf "$IFS_LOG"
+
+	echo "[RESULT] IFS test exit with $RESULT"
+	exit "$RESULT"
+}
+
+do_cmd()
+{
+	local cmd=$*
+	local ret=""
+
+	append_log "[$INFO] $cmd"
+	eval "$cmd"
+	ret=$?
+	if [[ $ret -ne 0 ]]; then
+		append_log "[$FAIL] $cmd failed. Return code is $ret"
+		RESULT=$KSFT_XFAIL
+		ifs_cleanup
+	fi
+}
+
+test_exit()
+{
+	local info=$1
+	RESULT=$2
+
+	declare -A EXIT_MAP
+	EXIT_MAP[$KSFT_PASS]=$PASS
+	EXIT_MAP[$KSFT_FAIL]=$FAIL
+	EXIT_MAP[$KSFT_XFAIL]=$XFAIL
+	EXIT_MAP[$KSFT_SKIP]=$SKIP
+
+	append_log "[${EXIT_MAP[$RESULT]}] $info"
+	ifs_cleanup
+}
+
+online_all_cpus()
+{
+	local off_cpus=""
+
+	OFFLINE_CPUS=$(cat "$CPU_OFFLINE_SYSFS")
+	online_offline_cpu_list "1" "$OFFLINE_CPUS"
+
+	off_cpus=$(cat "$CPU_OFFLINE_SYSFS")
+	if [[ -z "$off_cpus" ]]; then
+		append_log "[$INFO] All CPUs are online."
+	else
+		append_log "[$XFAIL] There is offline cpu:$off_cpus after online all cpu!"
+		RESULT=$KSFT_XFAIL
+		ifs_cleanup
+	fi
+}
+
+get_cpu_fms()
+{
+	FML=$(grep -m 1 "family" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')
+	MODEL=$(grep -m 1 "model" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')
+	STEPPING=$(grep -m 1 "stepping" /proc/cpuinfo | awk -F ":" '{printf "%02x",$2;}')
+	CPU_FMS="${FML}-${MODEL}-${STEPPING}"
+}
+
+check_cpu_ifs_support_interval_time()
+{
+	get_cpu_fms
+
+	if [[ "$FML" != "$INTEL_FAM6" ]]; then
+		test_exit "CPU family:$FML does not support IFS" "$KSFT_SKIP"
+	fi
+
+	# Ucode has time interval requirement for IFS scan on same CPU as follows:
+	case $MODEL in
+		"$SAPPHIRERAPIDS_X")
+			INTERVAL_TIME=180;
+			;;
+		"$EMERALDRAPIDS_X")
+			INTERVAL_TIME=30;
+			;;
+		*)
+			# Set default interval time for other platforms
+			INTERVAL_TIME=1;
+			append_log "[$INFO] CPU FML:$FML model:0x$MODEL, default: 1s interval time"
+			;;
+	esac
+}
+
+check_ifs_loaded()
+{
+	local ifs_info=""
+
+	ifs_info=$(lsmod | grep "$IFS_NAME")
+	if [[ -z "$ifs_info" ]]; then
+		append_log "[$INFO] modprobe $IFS_NAME"
+		modprobe "$IFS_NAME" || {
+			test_exit "Check if CONFIG_INTEL_IFS is set to m or \
+platform doesn't support ifs" "$KSFT_SKIP"
+		}
+		ifs_info=$(lsmod | grep "$IFS_NAME")
+		[[ -n "$ifs_info" ]] || test_exit "No ifs module listed by lsmod" "$KSFT_FAIL"
+	fi
+}
+
+test_ifs_scan_entry()
+{
+	local ifs_info=""
+
+	ifs_info=$(lsmod | grep "$IFS_NAME")
+
+	if [[ -z "$ifs_info" ]]; then
+		ORIGIN_IFS_LOADED="$FALSE"
+		check_ifs_loaded
+	else
+		ORIGIN_IFS_LOADED="$TRUE"
+		append_log "[$INFO] Module $IFS_NAME is already loaded"
+	fi
+
+	if [[ -d "$IFS_SCAN_SYSFS_PATH" ]]; then
+		append_log "[$PASS] IFS sysfs $IFS_SCAN_SYSFS_PATH entry is created\n"
+	else
+		test_exit "No sysfs entry in $IFS_SCAN_SYSFS_PATH" "$KSFT_FAIL"
+	fi
+}
+
+load_image()
+{
+	local image_id=$1
+	local image_info=""
+	local ret=""
+
+	check_ifs_loaded
+	if [[ -e "${IMG_PATH}/${IMAGE_NAME}" ]]; then
+		append_log "[$INFO] echo 0x$image_id > ${IFS_SCAN_SYSFS_PATH}/current_batch"
+		echo "0x$image_id" > "$IFS_SCAN_SYSFS_PATH"/current_batch 2>/dev/null
+		ret=$?
+		[[ "$ret" -eq 0 ]] || {
+			append_log "[$FAIL] Load ifs image $image_id failed with ret:$ret\n"
+			return "$ret"
+		}
+		image_info=$(cat ${IFS_SCAN_SYSFS_PATH}/current_batch)
+		if [[ "$image_info" == 0x"$image_id" ]]; then
+			append_log "[$PASS] load IFS current_batch:$image_info"
+		else
+			append_log "[$FAIL] current_batch:$image_info is not expected:$image_id"
+			return "$KSFT_FAIL"
+		fi
+	else
+		append_log "[$FAIL] No IFS image file ${IMG_PATH}/${IMAGE_NAME}"\
+		return "$KSFT_FAIL"
+	fi
+	return 0
+}
+
+test_load_origin_ifs_image()
+{
+	local image_id=$1
+
+	IMAGE_NAME="${CPU_FMS}-${image_id}.scan"
+
+	load_image "$image_id" || return $?
+	return 0
+}
+
+test_load_bad_ifs_image()
+{
+	local image_id=$1
+
+	IMAGE_NAME="${CPU_FMS}-${image_id}.scan"
+
+	do_cmd "mv -f ${IMG_PATH}/${IMAGE_NAME} ${IMG_PATH}/${IMAGE_NAME}_origin"
+
+	# Set IFS_IMAGE_NEED_RESTORE to true before corrupt the origin ifs image file
+	IFS_IMAGE_NEED_RESTORE=$TRUE
+	do_cmd "dd if=/dev/urandom of=${IMG_PATH}/${IMAGE_NAME} bs=1K count=6 2>/dev/null"
+
+	# Use the specified judgment for negative testing
+	append_log "[$INFO] echo 0x$image_id > ${IFS_SCAN_SYSFS_PATH}/current_batch"
+	echo "0x$image_id" > "$IFS_SCAN_SYSFS_PATH"/current_batch 2>/dev/null
+	ret=$?
+	if [[ "$ret" -ne 0 ]]; then
+		append_log "[$PASS] Load invalid ifs image failed with ret:$ret not 0 as expected"
+	else
+		append_log "[$FAIL] Load invalid ifs image ret:$ret unexpectedly"
+	fi
+
+	do_cmd "mv -f ${IMG_PATH}/${IMAGE_NAME}_origin ${IMG_PATH}/${IMAGE_NAME}"
+	IFS_IMAGE_NEED_RESTORE=$FALSE
+}
+
+test_bad_and_origin_ifs_image()
+{
+	local image_id=$1
+
+	append_log "[$INFO] Test loading bad and then loading original IFS image:"
+	test_load_origin_ifs_image "$image_id" || return $?
+	test_load_bad_ifs_image "$image_id"
+	# Load origin image again and make sure it's worked
+	test_load_origin_ifs_image "$image_id" || return $?
+	append_log "[$INFO] Loading invalid IFS image and then loading initial image passed.\n"
+}
+
+ifs_test_cpu()
+{
+	local ifs_mode=$1
+	local cpu_num=$2
+	local image_id status details ret result result_info
+
+	echo "$cpu_num" > "$IFS_PATH"_"$ifs_mode"/"$RUN_TEST"
+	ret=$?
+
+	status=$(cat "${IFS_PATH}_${ifs_mode}/${STATUS}")
+	details=$(cat "${IFS_PATH}_${ifs_mode}/${DETAILS}")
+
+	if [[ "$ret" -eq 0 && "$status" == "$STATUS_PASS" ]]; then
+		result="$PASS"
+	else
+		result="$FAIL"
+	fi
+
+	cpu_num=$(cat "${CPU_SYSFS}/cpu${cpu_num}/topology/thread_siblings_list")
+
+	# There is no image file for IFS ARRAY BIST scan
+	if [[ -e "${IFS_PATH}_${ifs_mode}/current_batch" ]]; then
+		image_id=$(cat "${IFS_PATH}_${ifs_mode}/current_batch")
+		result_info=$(printf "[%s] ifs_%1d cpu(s):%s, current_batch:0x%02x, \
+ret:%2d, status:%s, details:0x%016x" \
+			     "$result" "$ifs_mode" "$cpu_num" "$image_id" "$ret" \
+			     "$status" "$details")
+	else
+		result_info=$(printf "[%s] ifs_%1d cpu(s):%s, ret:%2d, status:%s, details:0x%016x" \
+			     "$result" "$ifs_mode" "$cpu_num" "$ret" "$status" "$details")
+	fi
+
+	append_log "$result_info"
+}
+
+ifs_test_cpus()
+{
+	local cpus_type=$1
+	local ifs_mode=$2
+	local image_id=$3
+	local cpu_max_num=""
+	local cpu_num=""
+
+	case "$cpus_type" in
+		"$ALL")
+			cpu_max_num=$(($(nproc) - 1))
+			cpus=$(seq 0 $cpu_max_num)
+			;;
+		"$SIBLINGS")
+			cpus=$(cat ${CPU_SYSFS}/cpu*/topology/thread_siblings_list \
+				| sed -e 's/,.*//' \
+				| sed -e 's/-.*//' \
+				| sort -n \
+				| uniq)
+			;;
+		*)
+			test_exit "Invalid cpus_type:$cpus_type" "$KSFT_XFAIL"
+			;;
+	esac
+
+	for cpu_num in $cpus; do
+		ifs_test_cpu "$ifs_mode" "$cpu_num"
+	done
+
+	if [[ -z "$image_id" ]]; then
+		append_log "[$INFO] ifs_$ifs_mode test $cpus_type cpus completed\n"
+	else
+		append_log "[$INFO] ifs_$ifs_mode $cpus_type cpus with $CPU_FMS-$image_id.scan \
+completed\n"
+	fi
+}
+
+test_ifs_same_cpu_loop()
+{
+	local ifs_mode=$1
+	local cpu_num=$2
+	local loop_times=$3
+
+	append_log "[$INFO] Test ifs mode $ifs_mode on CPU:$cpu_num for $loop_times rounds:"
+	[[ "$ifs_mode" == "$IFS_SCAN_MODE" ]] && {
+		load_image "$DEFAULT_IMG_ID" ||	return $?
+	}
+	for (( i=1; i<=loop_times; i++ )); do
+		append_log "[$INFO] Loop iteration: $i in total of $loop_times"
+		# Only IFS scan needs the interval time
+		if [[ "$ifs_mode" == "$IFS_SCAN_MODE" ]]; then
+			do_cmd "sleep $INTERVAL_TIME"
+		elif [[ "$ifs_mode" == "$IFS_ARRAY_BIST_SCAN_MODE" ]]; then
+			true
+		else
+			test_exit "Invalid ifs_mode:$ifs_mode" "$KSFT_XFAIL"
+		fi
+
+		ifs_test_cpu "$ifs_mode" "$cpu_num"
+	done
+	append_log "[$INFO] $loop_times rounds of ifs_$ifs_mode test on CPU:$cpu_num completed.\n"
+}
+
+test_ifs_scan_available_imgs()
+{
+	local image_ids=""
+	local image_id=""
+
+	append_log "[$INFO] Test ifs scan with available images:"
+	image_ids=$(find "$IMG_PATH" -maxdepth 1 -name "${CPU_FMS}-[0-9a-fA-F][0-9a-fA-F].scan" \
+		    2>/dev/null \
+		    | sort \
+		    | awk -F "-" '{print $NF}' \
+		    | cut -d "." -f 1)
+
+	for image_id in $image_ids; do
+		load_image "$image_id" || return $?
+
+		ifs_test_cpus "$SIBLINGS" "$IFS_SCAN_MODE" "$image_id"
+		# IFS scan requires time interval for the scan on the same CPU
+		do_cmd "sleep $INTERVAL_TIME"
+	done
+}
+
+prepare_ifs_test_env()
+{
+	local max_cpu=""
+
+	check_cpu_ifs_support_interval_time
+
+	online_all_cpus
+	max_cpu=$(($(nproc) - 1))
+	RANDOM_CPU=$(shuf -i 0-$max_cpu -n 1)
+
+	DEFAULT_IMG_ID=$(find $IMG_PATH -maxdepth 1 -name "${CPU_FMS}-[0-9a-fA-F][0-9a-fA-F].scan" \
+			 2>/dev/null \
+			 | sort \
+			 | head -n 1 \
+			 | awk -F "-" '{print $NF}' \
+			 | cut -d "." -f 1)
+}
+
+test_ifs()
+{
+	prepare_ifs_test_env
+
+	test_ifs_scan_entry
+
+	if [[ -z "$DEFAULT_IMG_ID" ]]; then
+		append_log "[$SKIP] No proper ${IMG_PATH}/${CPU_FMS}-*.scan, skip ifs_0 scan"
+	else
+		test_bad_and_origin_ifs_image "$DEFAULT_IMG_ID"
+		test_ifs_scan_available_imgs
+		test_ifs_same_cpu_loop "$IFS_SCAN_MODE" "$RANDOM_CPU" "$LOOP_TIMES"
+	fi
+
+	if [[ -d "$IFS_ARRAY_BIST_SYSFS_PATH" ]]; then
+		ifs_test_cpus "$SIBLINGS" "$IFS_ARRAY_BIST_SCAN_MODE"
+		test_ifs_same_cpu_loop "$IFS_ARRAY_BIST_SCAN_MODE" "$RANDOM_CPU" "$LOOP_TIMES"
+	else
+		append_log "[$SKIP] No $IFS_ARRAY_BIST_SYSFS_PATH, skip IFS ARRAY BIST scan"
+	fi
+}
+
+trap ifs_cleanup SIGTERM SIGINT
+test_ifs
+ifs_cleanup
diff --git a/tools/testing/selftests/drivers/s390x/uvdevice/Makefile b/tools/testing/selftests/drivers/s390x/uvdevice/Makefile
new file mode 100644
index 000000000000..755d164384c4
--- /dev/null
+++ b/tools/testing/selftests/drivers/s390x/uvdevice/Makefile
@@ -0,0 +1,20 @@
+include ../../../../../build/Build.include
+
+UNAME_M := $(shell uname -m)
+
+ifneq ($(UNAME_M),s390x)
+nothing:
+.PHONY: all clean run_tests install
+.SILENT:
+else
+
+TEST_GEN_PROGS := test_uvdevice
+
+top_srcdir ?= ../../../../../..
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
+
+CFLAGS += -Wall -Werror -static $(KHDR_INCLUDES) -I$(LINUX_TOOL_ARCH_INCLUDE)
+
+include ../../../lib.mk
+
+endif
diff --git a/tools/testing/selftests/drivers/s390x/uvdevice/config b/tools/testing/selftests/drivers/s390x/uvdevice/config
new file mode 100644
index 000000000000..f28a04b99eff
--- /dev/null
+++ b/tools/testing/selftests/drivers/s390x/uvdevice/config
@@ -0,0 +1 @@
+CONFIG_S390_UV_UAPI=y
diff --git a/tools/testing/selftests/drivers/s390x/uvdevice/test_uvdevice.c b/tools/testing/selftests/drivers/s390x/uvdevice/test_uvdevice.c
new file mode 100644
index 000000000000..14df9aa07308
--- /dev/null
+++ b/tools/testing/selftests/drivers/s390x/uvdevice/test_uvdevice.c
@@ -0,0 +1,270 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *  selftest for the Ultravisor UAPI device
+ *
+ *  Copyright IBM Corp. 2022
+ *  Author(s): Steffen Eiden <seiden@linux.ibm.com>
+ */
+
+#include <stdint.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <asm/uvdevice.h>
+
+#include "kselftest_harness.h"
+
+#define UV_PATH  "/dev/uv"
+#define BUFFER_SIZE 0x200
+FIXTURE(uvio_fixture) {
+	int uv_fd;
+	struct uvio_ioctl_cb uvio_ioctl;
+	uint8_t buffer[BUFFER_SIZE];
+	__u64 fault_page;
+};
+
+FIXTURE_VARIANT(uvio_fixture) {
+	unsigned long ioctl_cmd;
+	uint32_t arg_size;
+};
+
+FIXTURE_VARIANT_ADD(uvio_fixture, att) {
+	.ioctl_cmd = UVIO_IOCTL_ATT,
+	.arg_size = sizeof(struct uvio_attest),
+};
+
+FIXTURE_SETUP(uvio_fixture)
+{
+	self->uv_fd = open(UV_PATH, O_ACCMODE);
+
+	self->uvio_ioctl.argument_addr = (__u64)self->buffer;
+	self->uvio_ioctl.argument_len = variant->arg_size;
+	self->fault_page =
+		(__u64)mmap(NULL, (size_t)getpagesize(), PROT_NONE, MAP_ANONYMOUS, -1, 0);
+}
+
+FIXTURE_TEARDOWN(uvio_fixture)
+{
+	if (self->uv_fd)
+		close(self->uv_fd);
+	munmap((void *)self->fault_page, (size_t)getpagesize());
+}
+
+TEST_F(uvio_fixture, fault_ioctl_arg)
+{
+	int rc, errno_cache;
+
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, NULL);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, self->fault_page);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+}
+
+TEST_F(uvio_fixture, fault_uvio_arg)
+{
+	int rc, errno_cache;
+
+	self->uvio_ioctl.argument_addr = 0;
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+
+	self->uvio_ioctl.argument_addr = self->fault_page;
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+}
+
+/*
+ * Test to verify that IOCTLs with invalid values in the ioctl_control block
+ * are rejected.
+ */
+TEST_F(uvio_fixture, inval_ioctl_cb)
+{
+	int rc, errno_cache;
+
+	self->uvio_ioctl.argument_len = 0;
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+
+	self->uvio_ioctl.argument_len = (uint32_t)-1;
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+	self->uvio_ioctl.argument_len = variant->arg_size;
+
+	self->uvio_ioctl.flags = (uint32_t)-1;
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+	self->uvio_ioctl.flags = 0;
+
+	memset(self->uvio_ioctl.reserved14, 0xff, sizeof(self->uvio_ioctl.reserved14));
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+
+	memset(&self->uvio_ioctl, 0x11, sizeof(self->uvio_ioctl));
+	rc = ioctl(self->uv_fd, variant->ioctl_cmd, &self->uvio_ioctl);
+	ASSERT_EQ(rc, -1);
+}
+
+TEST_F(uvio_fixture, inval_ioctl_cmd)
+{
+	int rc, errno_cache;
+	uint8_t nr = _IOC_NR(variant->ioctl_cmd);
+	unsigned long cmds[] = {
+		_IOWR('a', nr, struct uvio_ioctl_cb),
+		_IOWR(UVIO_TYPE_UVC, nr, int),
+		_IO(UVIO_TYPE_UVC, nr),
+		_IOR(UVIO_TYPE_UVC, nr, struct uvio_ioctl_cb),
+		_IOW(UVIO_TYPE_UVC, nr, struct uvio_ioctl_cb),
+	};
+
+	for (size_t i = 0; i < ARRAY_SIZE(cmds); i++) {
+		rc = ioctl(self->uv_fd, cmds[i], &self->uvio_ioctl);
+		errno_cache = errno;
+		ASSERT_EQ(rc, -1);
+		ASSERT_EQ(errno_cache, ENOTTY);
+	}
+}
+
+struct test_attest_buffer {
+	uint8_t arcb[0x180];
+	uint8_t meas[64];
+	uint8_t add[32];
+};
+
+FIXTURE(attest_fixture) {
+	int uv_fd;
+	struct uvio_ioctl_cb uvio_ioctl;
+	struct uvio_attest uvio_attest;
+	struct test_attest_buffer attest_buffer;
+	__u64 fault_page;
+};
+
+FIXTURE_SETUP(attest_fixture)
+{
+	self->uv_fd = open(UV_PATH, O_ACCMODE);
+
+	self->uvio_ioctl.argument_addr = (__u64)&self->uvio_attest;
+	self->uvio_ioctl.argument_len = sizeof(self->uvio_attest);
+
+	self->uvio_attest.arcb_addr = (__u64)&self->attest_buffer.arcb;
+	self->uvio_attest.arcb_len = sizeof(self->attest_buffer.arcb);
+
+	self->uvio_attest.meas_addr = (__u64)&self->attest_buffer.meas;
+	self->uvio_attest.meas_len = sizeof(self->attest_buffer.meas);
+
+	self->uvio_attest.add_data_addr = (__u64)&self->attest_buffer.add;
+	self->uvio_attest.add_data_len = sizeof(self->attest_buffer.add);
+	self->fault_page =
+		(__u64)mmap(NULL, (size_t)getpagesize(), PROT_NONE, MAP_ANONYMOUS, -1, 0);
+}
+
+FIXTURE_TEARDOWN(attest_fixture)
+{
+	if (self->uv_fd)
+		close(self->uv_fd);
+	munmap((void *)self->fault_page, (size_t)getpagesize());
+}
+
+static void att_inval_sizes_test(uint32_t *size, uint32_t max_size, bool test_zero,
+				 struct __test_metadata *_metadata,
+				 FIXTURE_DATA(attest_fixture) *self)
+{
+	int rc, errno_cache;
+	uint32_t tmp = *size;
+
+	if (test_zero) {
+		*size = 0;
+		rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+		errno_cache = errno;
+		ASSERT_EQ(rc, -1);
+		ASSERT_EQ(errno_cache, EINVAL);
+	}
+	*size = max_size + 1;
+	rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+	*size = tmp;
+}
+
+/*
+ * Test to verify that attestation IOCTLs with invalid values in the UVIO
+ * attestation control block are rejected.
+ */
+TEST_F(attest_fixture, att_inval_request)
+{
+	int rc, errno_cache;
+
+	att_inval_sizes_test(&self->uvio_attest.add_data_len, UVIO_ATT_ADDITIONAL_MAX_LEN,
+			     false, _metadata, self);
+	att_inval_sizes_test(&self->uvio_attest.meas_len, UVIO_ATT_MEASUREMENT_MAX_LEN,
+			     true, _metadata, self);
+	att_inval_sizes_test(&self->uvio_attest.arcb_len, UVIO_ATT_ARCB_MAX_LEN,
+			     true, _metadata, self);
+
+	self->uvio_attest.reserved136 = (uint16_t)-1;
+	rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EINVAL);
+
+	memset(&self->uvio_attest, 0x11, sizeof(self->uvio_attest));
+	rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+	ASSERT_EQ(rc, -1);
+}
+
+static void att_inval_addr_test(__u64 *addr, struct __test_metadata *_metadata,
+				FIXTURE_DATA(attest_fixture) *self)
+{
+	int rc, errno_cache;
+	__u64 tmp = *addr;
+
+	*addr = 0;
+	rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+	*addr = self->fault_page;
+	rc = ioctl(self->uv_fd, UVIO_IOCTL_ATT, &self->uvio_ioctl);
+	errno_cache = errno;
+	ASSERT_EQ(rc, -1);
+	ASSERT_EQ(errno_cache, EFAULT);
+	*addr = tmp;
+}
+
+TEST_F(attest_fixture, att_inval_addr)
+{
+	att_inval_addr_test(&self->uvio_attest.arcb_addr, _metadata, self);
+	att_inval_addr_test(&self->uvio_attest.add_data_addr, _metadata, self);
+	att_inval_addr_test(&self->uvio_attest.meas_addr, _metadata, self);
+}
+
+int main(int argc, char **argv)
+{
+	int fd = open(UV_PATH, O_ACCMODE);
+
+	if (fd < 0)
+		ksft_exit_skip("No uv-device or cannot access " UV_PATH  "\n"
+			       "Enable CONFIG_S390_UV_UAPI and check the access rights on "
+			       UV_PATH ".\n");
+	close(fd);
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/drivers/sdsi/sdsi.sh b/tools/testing/selftests/drivers/sdsi/sdsi.sh
new file mode 100755
index 000000000000..9b84b9b82b49
--- /dev/null
+++ b/tools/testing/selftests/drivers/sdsi/sdsi.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the intel_sdsi driver
+
+if ! command -v python3 > /dev/null 2>&1; then
+	echo "drivers/sdsi: [SKIP] python3 not installed"
+	exit 77
+fi
+
+if ! python3 -c "import pytest" > /dev/null 2>&1; then
+	echo "drivers/sdsi: [SKIP] pytest module not installed"
+	exit 77
+fi
+
+if ! /sbin/modprobe -q -r intel_sdsi; then
+	echo "drivers/sdsi: [SKIP]"
+	exit 77
+fi
+
+if /sbin/modprobe -q intel_sdsi && python3 -m pytest sdsi_test.py; then
+	echo "drivers/sdsi: [OK]"
+else
+	echo "drivers/sdsi: [FAIL]"
+	exit 1
+fi
diff --git a/tools/testing/selftests/drivers/sdsi/sdsi_test.py b/tools/testing/selftests/drivers/sdsi/sdsi_test.py
new file mode 100644
index 000000000000..5efb29feee70
--- /dev/null
+++ b/tools/testing/selftests/drivers/sdsi/sdsi_test.py
@@ -0,0 +1,226 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from struct import pack
+from time import sleep
+
+import errno
+import glob
+import os
+import subprocess
+
+try:
+    import pytest
+except ImportError:
+    print("Unable to import pytest python module.")
+    print("\nIf not already installed, you may do so with:")
+    print("\t\tpip3 install pytest")
+    exit(1)
+
+SOCKETS = glob.glob('/sys/bus/auxiliary/devices/intel_vsec.sdsi.*')
+NUM_SOCKETS = len(SOCKETS)
+
+MODULE_NAME = 'intel_sdsi'
+DEV_PREFIX = 'intel_vsec.sdsi'
+CLASS_DIR = '/sys/bus/auxiliary/devices'
+GUID = "0x6dd191"
+
+def read_bin_file(file):
+    with open(file, mode='rb') as f:
+        content = f.read()
+    return content
+
+def get_dev_file_path(socket, file):
+    return CLASS_DIR + '/' + DEV_PREFIX + '.' + str(socket) + '/' + file
+
+def kmemleak_enabled():
+    kmemleak = "/sys/kernel/debug/kmemleak"
+    return os.path.isfile(kmemleak)
+
+class TestSDSiDriver:
+    def test_driver_loaded(self):
+        lsmod_p = subprocess.Popen(('lsmod'), stdout=subprocess.PIPE)
+        result = subprocess.check_output(('grep', '-q', MODULE_NAME), stdin=lsmod_p.stdout)
+
+@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
+class TestSDSiFilesClass:
+
+    def read_value(self, file):
+        f = open(file, "r")
+        value = f.read().strip("\n")
+        return value
+
+    def get_dev_folder(self, socket):
+        return CLASS_DIR + '/' + DEV_PREFIX + '.' + str(socket) + '/'
+
+    def test_sysfs_files_exist(self, socket):
+        folder = self.get_dev_folder(socket)
+        print (folder)
+        assert os.path.isfile(folder + "guid") == True
+        assert os.path.isfile(folder + "provision_akc") == True
+        assert os.path.isfile(folder + "provision_cap") == True
+        assert os.path.isfile(folder + "state_certificate") == True
+        assert os.path.isfile(folder + "registers") == True
+
+    def test_sysfs_file_permissions(self, socket):
+        folder = self.get_dev_folder(socket)
+        mode = os.stat(folder + "guid").st_mode & 0o777
+        assert mode == 0o444    # Read all
+        mode = os.stat(folder + "registers").st_mode & 0o777
+        assert mode == 0o400    # Read owner
+        mode = os.stat(folder + "provision_akc").st_mode & 0o777
+        assert mode == 0o200    # Read owner
+        mode = os.stat(folder + "provision_cap").st_mode & 0o777
+        assert mode == 0o200    # Read owner
+        mode = os.stat(folder + "state_certificate").st_mode & 0o777
+        assert mode == 0o400    # Read owner
+
+    def test_sysfs_file_ownership(self, socket):
+        folder = self.get_dev_folder(socket)
+
+        st = os.stat(folder + "guid")
+        assert st.st_uid == 0
+        assert st.st_gid == 0
+
+        st = os.stat(folder + "registers")
+        assert st.st_uid == 0
+        assert st.st_gid == 0
+
+        st = os.stat(folder + "provision_akc")
+        assert st.st_uid == 0
+        assert st.st_gid == 0
+
+        st = os.stat(folder + "provision_cap")
+        assert st.st_uid == 0
+        assert st.st_gid == 0
+
+        st = os.stat(folder + "state_certificate")
+        assert st.st_uid == 0
+        assert st.st_gid == 0
+
+    def test_sysfs_file_sizes(self, socket):
+        folder = self.get_dev_folder(socket)
+
+        if self.read_value(folder + "guid") == GUID:
+            st = os.stat(folder + "registers")
+            assert st.st_size == 72
+
+        st = os.stat(folder + "provision_akc")
+        assert st.st_size == 1024
+
+        st = os.stat(folder + "provision_cap")
+        assert st.st_size == 1024
+
+        st = os.stat(folder + "state_certificate")
+        assert st.st_size == 4096
+
+    def test_no_seek_allowed(self, socket):
+        folder = self.get_dev_folder(socket)
+        rand_file = bytes(os.urandom(8))
+
+        f = open(folder + "provision_cap", "wb", 0)
+        f.seek(1)
+        with pytest.raises(OSError) as error:
+            f.write(rand_file)
+        assert error.value.errno == errno.ESPIPE
+        f.close()
+
+        f = open(folder + "provision_akc", "wb", 0)
+        f.seek(1)
+        with pytest.raises(OSError) as error:
+            f.write(rand_file)
+        assert error.value.errno == errno.ESPIPE
+        f.close()
+
+    def test_registers_seek(self, socket):
+        folder = self.get_dev_folder(socket)
+
+        # Check that the value read from an offset of the entire
+        # file is none-zero and the same as the value read
+        # from seeking to the same location
+        f = open(folder + "registers", "rb")
+        data = f.read()
+        f.seek(64)
+        id = f.read()
+        assert id != bytes(0)
+        assert data[64:] == id
+        f.close()
+
+@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
+class TestSDSiMailboxCmdsClass:
+    def test_provision_akc_eoverflow_1017_bytes(self, socket):
+
+        # The buffer for writes is 1k, of with 8 bytes must be
+        # reserved for the command, leaving 1016 bytes max.
+        # Check that we get an overflow error for 1017 bytes.
+        node = get_dev_file_path(socket, "provision_akc")
+        rand_file = bytes(os.urandom(1017))
+
+        f = open(node, 'wb', 0)
+        with pytest.raises(OSError) as error:
+            f.write(rand_file)
+        assert error.value.errno == errno.EOVERFLOW
+        f.close()
+
+@pytest.mark.parametrize('socket', range(0, NUM_SOCKETS))
+class TestSdsiDriverLocksClass:
+    def test_enodev_when_pci_device_removed(self, socket):
+        node = get_dev_file_path(socket, "provision_akc")
+        dev_name = DEV_PREFIX + '.' + str(socket)
+        driver_dir = CLASS_DIR + '/' + dev_name + "/driver/"
+        rand_file = bytes(os.urandom(8))
+
+        f = open(node, 'wb', 0)
+        g = open(node, 'wb', 0)
+
+        with open(driver_dir + 'unbind', 'w') as k:
+            print(dev_name, file = k)
+
+        with pytest.raises(OSError) as error:
+            f.write(rand_file)
+        assert error.value.errno == errno.ENODEV
+
+        with pytest.raises(OSError) as error:
+            g.write(rand_file)
+        assert error.value.errno == errno.ENODEV
+
+        f.close()
+        g.close()
+
+        # Short wait needed to allow file to close before pulling driver
+        sleep(1)
+
+        p = subprocess.Popen(('modprobe', '-r', 'intel_sdsi'))
+        p.wait()
+        p = subprocess.Popen(('modprobe', '-r', 'intel_vsec'))
+        p.wait()
+        p = subprocess.Popen(('modprobe', 'intel_vsec'))
+        p.wait()
+
+        # Short wait needed to allow driver time to get inserted
+        # before continuing tests
+        sleep(1)
+
+    def test_memory_leak(self, socket):
+        if not kmemleak_enabled():
+            pytest.skip("kmemleak not enabled in kernel")
+
+        dev_name = DEV_PREFIX + '.' + str(socket)
+        driver_dir = CLASS_DIR + '/' + dev_name + "/driver/"
+
+        with open(driver_dir + 'unbind', 'w') as k:
+            print(dev_name, file = k)
+
+        sleep(1)
+
+        subprocess.check_output(('modprobe', '-r', 'intel_sdsi'))
+        subprocess.check_output(('modprobe', '-r', 'intel_vsec'))
+
+        with open('/sys/kernel/debug/kmemleak', 'w') as f:
+            print('scan', file = f)
+        sleep(5)
+
+        assert os.stat('/sys/kernel/debug/kmemleak').st_size == 0
+
+        subprocess.check_output(('modprobe', 'intel_vsec'))
+        sleep(1)
diff --git a/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh b/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh
new file mode 100755
index 000000000000..128f0ab24307
--- /dev/null
+++ b/tools/testing/selftests/drivers/usb/usbip/usbip_test.sh
@@ -0,0 +1,200 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+usage() { echo "usbip_test.sh -b <busid> -p <usbip tools path>"; exit 1; }
+
+while getopts "h:b:p:" arg; do
+    case "${arg}" in
+	h)
+	    usage
+	    ;;
+	b)
+	    busid=${OPTARG}
+	    ;;
+	p)
+	    tools_path=${OPTARG}
+	    ;;
+	*)
+	    usage
+	    ;;
+    esac
+done
+shift $((OPTIND-1))
+
+if [ -z "${busid}" ]; then
+	usage
+fi
+
+echo "Running USB over IP Testing on $busid";
+
+test_end_msg="End of USB over IP Testing on $busid"
+
+if [ $UID != 0 ]; then
+	echo "Please run usbip_test as root [SKIP]"
+	echo $test_end_msg
+	exit $ksft_skip
+fi
+
+echo "Load usbip_host module"
+if ! /sbin/modprobe -q -n usbip_host; then
+	echo "usbip_test: module usbip_host is not found [SKIP]"
+	echo $test_end_msg
+	exit $ksft_skip
+fi
+
+if /sbin/modprobe -q usbip_host; then
+	echo "usbip_test: module usbip_host is loaded [OK]"
+else
+	echo "usbip_test: module usbip_host failed to load [FAIL]"
+	echo $test_end_msg
+	exit 1
+fi
+
+echo "Load vhci_hcd module"
+if /sbin/modprobe -q vhci_hcd; then
+	echo "usbip_test: module vhci_hcd is loaded [OK]"
+else
+	echo "usbip_test: module vhci_hcd failed to load [FAIL]"
+	echo $test_end_msg
+	exit 1
+fi
+echo "=============================================================="
+
+cd $tools_path;
+
+if [ ! -f src/usbip ]; then
+	echo "Please build usbip tools"
+	echo $test_end_msg
+	exit $ksft_skip
+fi
+
+echo "Expect to see export-able devices";
+src/usbip list -l;
+echo "=============================================================="
+
+echo "Run lsusb to see all usb devices"
+lsusb -t;
+echo "=============================================================="
+
+src/usbipd -D;
+
+echo "Get exported devices from localhost - expect to see none";
+src/usbip list -r localhost;
+echo "=============================================================="
+
+echo "bind devices";
+src/usbip bind -b $busid;
+echo "=============================================================="
+
+echo "Run lsusb - bound devices should be under usbip_host control"
+lsusb -t;
+echo "=============================================================="
+
+echo "bind devices - expect already bound messages"
+src/usbip bind -b $busid;
+echo "=============================================================="
+
+echo "Get exported devices from localhost - expect to see exported devices";
+src/usbip list -r localhost;
+echo "=============================================================="
+
+echo "unbind devices";
+src/usbip unbind -b $busid;
+echo "=============================================================="
+
+echo "Run lsusb - bound devices should be rebound to original drivers"
+lsusb -t;
+echo "=============================================================="
+
+echo "unbind devices - expect no devices bound message";
+src/usbip unbind -b $busid;
+echo "=============================================================="
+
+echo "Get exported devices from localhost - expect to see none";
+src/usbip list -r localhost;
+echo "=============================================================="
+
+echo "List imported devices - expect to see none";
+src/usbip port;
+echo "=============================================================="
+
+echo "Import devices from localhost - should fail with no devices"
+src/usbip attach -r localhost -b $busid;
+echo "=============================================================="
+
+echo "bind devices";
+src/usbip bind -b $busid;
+echo "=============================================================="
+
+echo "List imported devices - expect to see exported devices";
+src/usbip list -r localhost;
+echo "=============================================================="
+
+echo "List imported devices - expect to see none";
+src/usbip port;
+echo "=============================================================="
+
+echo "Import devices from localhost - should work"
+src/usbip attach -r localhost -b $busid;
+echo "=============================================================="
+
+# Wait for sysfs file to be updated. Without this sleep, usbip port
+# shows no imported devices.
+sleep 3;
+
+echo "List imported devices - expect to see imported devices";
+src/usbip port;
+echo "=============================================================="
+
+echo "Import devices from localhost - expect already imported messages"
+src/usbip attach -r localhost -b $busid;
+echo "=============================================================="
+
+echo "Un-import devices";
+src/usbip detach -p 00;
+src/usbip detach -p 01;
+echo "=============================================================="
+
+echo "List imported devices - expect to see none";
+src/usbip port;
+echo "=============================================================="
+
+echo "Un-import devices - expect no devices to detach messages";
+src/usbip detach -p 00;
+src/usbip detach -p 01;
+echo "=============================================================="
+
+echo "Detach invalid port tests - expect invalid port error message";
+src/usbip detach -p 100;
+echo "=============================================================="
+
+echo "Expect to see export-able devices";
+src/usbip list -l;
+echo "=============================================================="
+
+echo "Remove usbip_host module";
+rmmod usbip_host;
+
+echo "Run lsusb - bound devices should be rebound to original drivers"
+lsusb -t;
+echo "=============================================================="
+
+echo "Run bind without usbip_host - expect fail"
+src/usbip bind -b $busid;
+echo "=============================================================="
+
+echo "Run lsusb - devices that failed to bind aren't bound to any driver"
+lsusb -t;
+echo "=============================================================="
+
+echo "modprobe usbip_host - does it work?"
+/sbin/modprobe usbip_host
+echo "Should see -busid- is not in match_busid table... skip! dmesg"
+echo "=============================================================="
+dmesg | grep "is not in match_busid table"
+echo "=============================================================="
+
+echo $test_end_msg
diff --git a/tools/testing/selftests/dt/.gitignore b/tools/testing/selftests/dt/.gitignore
new file mode 100644
index 000000000000..f6476c9f2884
--- /dev/null
+++ b/tools/testing/selftests/dt/.gitignore
@@ -0,0 +1 @@
+compatible_list
diff --git a/tools/testing/selftests/dt/Makefile b/tools/testing/selftests/dt/Makefile
new file mode 100644
index 000000000000..2d33ee9e9b71
--- /dev/null
+++ b/tools/testing/selftests/dt/Makefile
@@ -0,0 +1,21 @@
+PY3 = $(shell which python3 2>/dev/null)
+
+ifneq ($(PY3),)
+
+TEST_PROGS := test_unprobed_devices.sh
+TEST_GEN_FILES := compatible_list
+TEST_FILES := compatible_ignore_list
+
+include ../lib.mk
+
+$(OUTPUT)/compatible_list:
+	$(top_srcdir)/scripts/dtc/dt-extract-compatibles -d $(top_srcdir) > $@
+
+else
+
+all: no_py3_warning
+
+no_py3_warning:
+	@echo "Missing python3. This test will be skipped."
+
+endif
diff --git a/tools/testing/selftests/dt/compatible_ignore_list b/tools/testing/selftests/dt/compatible_ignore_list
new file mode 100644
index 000000000000..1323903feca9
--- /dev/null
+++ b/tools/testing/selftests/dt/compatible_ignore_list
@@ -0,0 +1 @@
+simple-mfd
diff --git a/tools/testing/selftests/dt/test_unprobed_devices.sh b/tools/testing/selftests/dt/test_unprobed_devices.sh
new file mode 100755
index 000000000000..5e3f42ef249e
--- /dev/null
+++ b/tools/testing/selftests/dt/test_unprobed_devices.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2023 Collabora Ltd
+#
+# Based on Frank Rowand's dt_stat script.
+#
+# This script tests for devices that were declared on the Devicetree and are
+# expected to bind to a driver, but didn't.
+#
+# To achieve this, two lists are used:
+# * a list of the compatibles that can be matched by a Devicetree node
+# * a list of compatibles that should be ignored
+#
+
+DIR="$(dirname $(readlink -f "$0"))"
+
+source "${DIR}"/../kselftest/ktap_helpers.sh
+
+PDT=/proc/device-tree/
+COMPAT_LIST="${DIR}"/compatible_list
+IGNORE_LIST="${DIR}"/compatible_ignore_list
+
+ktap_print_header
+
+if [[ ! -d "${PDT}" ]]; then
+	ktap_skip_all "${PDT} doesn't exist."
+	exit "${KSFT_SKIP}"
+fi
+
+nodes_compatible=$(
+	for node in $(find ${PDT} -type d); do
+		[ ! -f "${node}"/compatible ] && continue
+		# Check if node is available
+		if [[ -e "${node}"/status ]]; then
+			status=$(tr -d '\000' < "${node}"/status)
+			if [[ "${status}" != "okay" && "${status}" != "ok" ]]; then
+				if [ -n "${disabled_nodes_regex}" ]; then
+					disabled_nodes_regex="${disabled_nodes_regex}|${node}"
+				else
+					disabled_nodes_regex="${node}"
+				fi
+				continue
+			fi
+		fi
+
+		# Ignore this node if one of its ancestors was disabled
+		if [ -n "${disabled_nodes_regex}" ]; then
+			echo "${node}" | grep -q -E "${disabled_nodes_regex}" && continue
+		fi
+
+		echo "${node}" | sed -e 's|\/proc\/device-tree||'
+	done | sort
+	)
+
+nodes_dev_bound=$(
+	IFS=$'\n'
+	for dev_dir in $(find /sys/devices -type d); do
+		[ ! -f "${dev_dir}"/uevent ] && continue
+		[ ! -d "${dev_dir}"/driver ] && continue
+
+		grep '^OF_FULLNAME=' "${dev_dir}"/uevent | sed -e 's|OF_FULLNAME=||'
+	done
+	)
+
+num_tests=$(echo ${nodes_compatible} | wc -w)
+ktap_set_plan "${num_tests}"
+
+retval="${KSFT_PASS}"
+for node in ${nodes_compatible}; do
+	if ! echo "${nodes_dev_bound}" | grep -E -q "(^| )${node}( |\$)"; then
+		compatibles=$(tr '\000' '\n' < "${PDT}"/"${node}"/compatible)
+
+		for compatible in ${compatibles}; do
+			if grep -x -q "${compatible}" "${IGNORE_LIST}"; then
+				continue
+			fi
+
+			if grep -x -q "${compatible}" "${COMPAT_LIST}"; then
+				ktap_test_fail "${node}"
+				retval="${KSFT_FAIL}"
+				continue 2
+			fi
+		done
+		ktap_test_skip "${node}"
+	else
+		ktap_test_pass "${node}"
+	fi
+
+done
+
+ktap_print_totals
+exit "${retval}"
diff --git a/tools/testing/selftests/efivarfs/.gitignore b/tools/testing/selftests/efivarfs/.gitignore
new file mode 100644
index 000000000000..807407f7f58b
--- /dev/null
+++ b/tools/testing/selftests/efivarfs/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+create-read
+open-unlink
diff --git a/tools/testing/selftests/efivarfs/Makefile b/tools/testing/selftests/efivarfs/Makefile
index 736c3ddfc787..e3181338ba5e 100644
--- a/tools/testing/selftests/efivarfs/Makefile
+++ b/tools/testing/selftests/efivarfs/Makefile
@@ -1,13 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
 CFLAGS = -Wall
 
-test_objs = open-unlink create-read
-
-all: $(test_objs)
-
+TEST_GEN_FILES := open-unlink create-read
 TEST_PROGS := efivarfs.sh
-TEST_FILES := $(test_objs)
 
 include ../lib.mk
 
-clean:
-	rm -f $(test_objs)
diff --git a/tools/testing/selftests/efivarfs/config b/tools/testing/selftests/efivarfs/config
new file mode 100644
index 000000000000..4e151f1005b2
--- /dev/null
+++ b/tools/testing/selftests/efivarfs/config
@@ -0,0 +1 @@
+CONFIG_EFIVAR_FS=y
diff --git a/tools/testing/selftests/efivarfs/create-read.c b/tools/testing/selftests/efivarfs/create-read.c
index 7feef1880968..7bc7af4eb2c1 100644
--- a/tools/testing/selftests/efivarfs/create-read.c
+++ b/tools/testing/selftests/efivarfs/create-read.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -31,8 +32,10 @@ int main(int argc, char **argv)
 	rc = read(fd, buf, sizeof(buf));
 	if (rc != 0) {
 		fprintf(stderr, "Reading a new var should return EOF\n");
+		close(fd);
 		return EXIT_FAILURE;
 	}
 
+	close(fd);
 	return EXIT_SUCCESS;
 }
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh
index 77edcdcc016b..c62544b966ae 100755
--- a/tools/testing/selftests/efivarfs/efivarfs.sh
+++ b/tools/testing/selftests/efivarfs/efivarfs.sh
@@ -1,20 +1,30 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 efivarfs_mount=/sys/firmware/efi/efivars
 test_guid=210be57c-9849-4fc7-a635-e6382d1aec27
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+file_cleanup()
+{
+	chattr -i $1
+	rm -f $1
+}
+
 check_prereqs()
 {
 	local msg="skip all tests:"
 
 	if [ $UID != 0 ]; then
 		echo $msg must be run as root >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	if ! grep -q "^\S\+ $efivarfs_mount efivarfs" /proc/mounts; then
 		echo $msg efivarfs is not mounted on $efivarfs_mount >&2
-		exit 0
+		exit $ksft_skip
 	fi
 }
 
@@ -54,8 +64,10 @@ test_create()
 
 	if [ $(stat -c %s $file) -ne 5 ]; then
 		echo "$file has invalid size" >&2
+		file_cleanup $file
 		exit 1
 	fi
+	file_cleanup $file
 }
 
 test_create_empty()
@@ -64,8 +76,9 @@ test_create_empty()
 
 	: > $file
 
-	if [ ! -e $file ]; then
-		echo "$file can not be created without writing" >&2
+	if [ -e $file ]; then
+		echo "$file can be created without writing" >&2
+		file_cleanup $file
 		exit 1
 	fi
 }
@@ -74,6 +87,15 @@ test_create_read()
 {
 	local file=$efivarfs_mount/$FUNCNAME-$test_guid
 	./create-read $file
+	if [ $? -ne 0 ]; then
+		echo "create and read $file failed"
+		exit 1
+	fi
+	if [ -e $file ]; then
+		echo "file still exists and should not"
+		file_cleanup $file
+		exit 1
+	fi
 }
 
 test_delete()
@@ -88,7 +110,7 @@ test_delete()
 		exit 1
 	fi
 
-	rm $file
+	file_cleanup $file
 
 	if [ -e $file ]; then
 		echo "$file couldn't be deleted" >&2
@@ -111,6 +133,7 @@ test_zero_size_delete()
 		exit 1
 	fi
 
+	chattr -i $file
 	printf "$attrs" > $file
 
 	if [ -e $file ]; then
@@ -141,7 +164,7 @@ test_valid_filenames()
 			echo "$file could not be created" >&2
 			ret=1
 		else
-			rm $file
+			file_cleanup $file
 		fi
 	done
 
@@ -174,7 +197,7 @@ test_invalid_filenames()
 
 		if [ -e $file ]; then
 			echo "Creating $file should have failed" >&2
-			rm $file
+			file_cleanup $file
 			ret=1
 		fi
 	done
@@ -182,6 +205,158 @@ test_invalid_filenames()
 	exit $ret
 }
 
+test_no_set_size()
+{
+	local attrs='\x07\x00\x00\x00'
+	local file=$efivarfs_mount/$FUNCNAME-$test_guid
+	local ret=0
+
+	printf "$attrs\x00" > $file
+	[ -e $file -a -s $file ] || exit 1
+	chattr -i $file
+	: > $file
+	if [ $? != 0 ]; then
+		echo "variable file failed to accept truncation"
+		ret=1
+	elif [ -e $file -a ! -s $file ]; then
+		echo "file can be truncated to zero size"
+		ret=1
+	fi
+	rm $file || exit 1
+
+	exit $ret
+}
+
+setup_test_multiple()
+{
+       ##
+       # we're going to do multi-threaded tests, so create a set of
+       # pipes for synchronization.  We use pipes 1..3 to start the
+       # stalled shell job and pipes 4..6 as indicators that the job
+       # has started.  If you need more than 3 jobs the two +3's below
+       # need increasing
+       ##
+
+       declare -ag p
+
+       # empty is because arrays number from 0 but jobs number from 1
+       p[0]=""
+
+       for f in 1 2 3 4 5 6; do
+               p[$f]=/tmp/efivarfs_pipe${f}
+               mknod ${p[$f]} p
+       done
+
+       declare -g var=$efivarfs_mount/test_multiple-$test_guid
+
+       cleanup() {
+               for f in ${p[@]}; do
+                       rm -f ${f}
+               done
+               if [ -e $var ]; then
+                       file_cleanup $var
+               fi
+       }
+       trap cleanup exit
+
+       waitstart() {
+               cat ${p[$[$1+3]]} > /dev/null
+       }
+
+       waitpipe() {
+               echo 1 > ${p[$[$1+3]]}
+               cat ${p[$1]} > /dev/null
+       }
+
+       endjob() {
+               echo 1 > ${p[$1]}
+               wait -n %$1
+       }
+}
+
+test_multiple_zero_size()
+{
+       ##
+       # check for remove on last close, set up three threads all
+       # holding the variable (one write and two reads) and then
+       # close them sequentially (waiting for completion) and check
+       # the state of the variable
+       ##
+
+       { waitpipe 1; echo 1; } > $var 2> /dev/null &
+       waitstart 1
+       # zero length file should exist
+       [ -e $var ] || exit 1
+       # second and third delayed close
+       { waitpipe 2; } < $var &
+       waitstart 2
+       { waitpipe 3; } < $var &
+       waitstart 3
+       # close first fd
+       endjob 1
+       # var should only be deleted on last close
+       [ -e $var ] || exit 1
+       # close second fd
+       endjob 2
+       [ -e $var ] || exit 1
+       # file should go on last close
+       endjob 3
+       [ ! -e $var ] || exit 1
+}
+
+test_multiple_create()
+{
+       ##
+       # set multiple threads to access the variable but delay
+       # the final write to check the close of 2 and 3.  The
+       # final write should succeed in creating the variable
+       ##
+       { waitpipe 1; printf '\x07\x00\x00\x00\x54'; } > $var &
+       waitstart 1
+       [ -e $var -a ! -s $var ] || exit 1
+       { waitpipe 2; } < $var &
+       waitstart 2
+       { waitpipe 3; } < $var &
+       waitstart 3
+       # close second and third fds
+       endjob 2
+       # var should only be created (have size) on last close
+       [ -e $var -a ! -s $var ] || exit 1
+       endjob 3
+       [ -e $var -a ! -s $var ] || exit 1
+       # close first fd
+       endjob 1
+       # variable should still exist
+       [ -s $var ] || exit 1
+       file_cleanup $var
+}
+
+test_multiple_delete_on_write() {
+       ##
+       # delete the variable on final write; seqencing similar
+       # to test_multiple_create()
+       ##
+       printf '\x07\x00\x00\x00\x54' > $var
+       chattr -i $var
+       { waitpipe 1; printf '\x07\x00\x00\x00'; } > $var &
+       waitstart 1
+       [ -e $var -a -s $var ] || exit 1
+       { waitpipe 2; } < $var &
+       waitstart 2
+       { waitpipe 3; } < $var &
+       waitstart 3
+       # close first fd; write should set variable size to zero
+       endjob 1
+       # var should only be deleted on last close
+       [ -e $var -a ! -s $var ] || exit 1
+       endjob 2
+       [ -e $var ] || exit 1
+       # close last fd
+       endjob 3
+       # variable should now be removed
+       [ ! -e $var ] || exit 1
+}
+
 check_prereqs
 
 rc=0
@@ -194,5 +369,10 @@ run_test test_zero_size_delete
 run_test test_open_unlink
 run_test test_valid_filenames
 run_test test_invalid_filenames
+run_test test_no_set_size
+setup_test_multiple
+run_test test_multiple_zero_size
+run_test test_multiple_create
+run_test test_multiple_delete_on_write
 
 exit $rc
diff --git a/tools/testing/selftests/efivarfs/open-unlink.c b/tools/testing/selftests/efivarfs/open-unlink.c
index 8c0764407b3c..562742d44ac9 100644
--- a/tools/testing/selftests/efivarfs/open-unlink.c
+++ b/tools/testing/selftests/efivarfs/open-unlink.c
@@ -1,10 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <errno.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <linux/fs.h>
+
+static int set_immutable(const char *path, int immutable)
+{
+	unsigned int flags;
+	int fd;
+	int rc;
+	int error;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+	if (rc < 0) {
+		error = errno;
+		close(fd);
+		errno = error;
+		return rc;
+	}
+
+	if (immutable)
+		flags |= FS_IMMUTABLE_FL;
+	else
+		flags &= ~FS_IMMUTABLE_FL;
+
+	rc = ioctl(fd, FS_IOC_SETFLAGS, &flags);
+	error = errno;
+	close(fd);
+	errno = error;
+	return rc;
+}
+
+static int get_immutable(const char *path)
+{
+	unsigned int flags;
+	int fd;
+	int rc;
+	int error;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return fd;
+
+	rc = ioctl(fd, FS_IOC_GETFLAGS, &flags);
+	if (rc < 0) {
+		error = errno;
+		close(fd);
+		errno = error;
+		return rc;
+	}
+	close(fd);
+	if (flags & FS_IMMUTABLE_FL)
+		return 1;
+	return 0;
+}
 
 int main(int argc, char **argv)
 {
@@ -27,7 +86,7 @@ int main(int argc, char **argv)
 	buf[4] = 0;
 
 	/* create a test variable */
-	fd = open(path, O_WRONLY | O_CREAT);
+	fd = open(path, O_WRONLY | O_CREAT, 0600);
 	if (fd < 0) {
 		perror("open(O_WRONLY)");
 		return EXIT_FAILURE;
@@ -41,6 +100,18 @@ int main(int argc, char **argv)
 
 	close(fd);
 
+	rc = get_immutable(path);
+	if (rc < 0) {
+		perror("ioctl(FS_IOC_GETFLAGS)");
+		return EXIT_FAILURE;
+	} else if (rc) {
+		rc = set_immutable(path, 0);
+		if (rc < 0) {
+			perror("ioctl(FS_IOC_SETFLAGS)");
+			return EXIT_FAILURE;
+		}
+	}
+
 	fd = open(path, O_RDONLY);
 	if (fd < 0) {
 		perror("open");
diff --git a/tools/testing/selftests/exec/.gitignore b/tools/testing/selftests/exec/.gitignore
index 64073e050c6a..7f3d1ae762ec 100644
--- a/tools/testing/selftests/exec/.gitignore
+++ b/tools/testing/selftests/exec/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 subdir*
 script*
 execveat
@@ -6,4 +7,15 @@ execveat.moved
 execveat.path.ephemeral
 execveat.ephemeral
 execveat.denatured
-xxxxxxxx*
-\ No newline at end of file
+non-regular
+null-argv
+/check-exec
+/false
+/inc
+/load_address.*
+!load_address.c
+/recursion-depth
+/set-exec
+xxxxxxxx*
+pipe
+S_I*.test
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 6b76bfdc847e..45a3cfc435cf 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,28 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS = -Wall
-BINARIES = execveat
-DEPS = execveat.symlink execveat.denatured script
-all: $(BINARIES) $(DEPS)
+CFLAGS += -Wno-nonnull
+CFLAGS += $(KHDR_INCLUDES)
 
-subdir:
-	mkdir -p $@
-script:
-	echo '#!/bin/sh' > $@
-	echo 'exit $$*' >> $@
-	chmod +x $@
-execveat.symlink: execveat
-	ln -s -f $< $@
-execveat.denatured: execveat
-	cp $< $@
-	chmod -x $@
-%: %.c
-	$(CC) $(CFLAGS) -o $@ $^
+LDLIBS += -lcap
+
+ALIGNS := 0x1000 0x200000 0x1000000
+ALIGN_PIES        := $(patsubst %,load_address.%,$(ALIGNS))
+ALIGN_STATIC_PIES := $(patsubst %,load_address.static.%,$(ALIGNS))
+ALIGNMENT_TESTS   := $(ALIGN_PIES) $(ALIGN_STATIC_PIES)
+
+TEST_PROGS := binfmt_script.py check-exec-tests.sh
+TEST_GEN_PROGS := execveat non-regular $(ALIGNMENT_TESTS)
+TEST_GEN_PROGS_EXTENDED := false inc set-exec script-exec.inc script-noexec.inc
+TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir
+# Makefile is a run-time dependency, since it's accessed by the execveat test
+TEST_FILES := Makefile
+
+TEST_GEN_PROGS += recursion-depth
+TEST_GEN_PROGS += null-argv
+TEST_GEN_PROGS += check-exec
 
-TEST_PROGS := execveat
-TEST_FILES := $(DEPS)
+EXTRA_CLEAN := $(OUTPUT)/subdir.moved $(OUTPUT)/execveat.moved $(OUTPUT)/xxxxx*	\
+	       $(OUTPUT)/S_I*.test
 
 include ../lib.mk
 
-override EMIT_TESTS := echo "mkdir -p subdir; (./execveat && echo \"selftests: execveat [PASS]\") || echo \"selftests: execveat [FAIL]\""
+CHECK_EXEC_SAMPLES := $(top_srcdir)/samples/check-exec
 
-clean:
-	rm -rf $(BINARIES) $(DEPS) subdir.moved execveat.moved xxxxx*
+$(OUTPUT)/subdir:
+	mkdir -p $@
+$(OUTPUT)/script: Makefile
+	echo '#!/bin/bash' > $@
+	echo 'exit $$*' >> $@
+	chmod +x $@
+$(OUTPUT)/execveat.symlink: $(OUTPUT)/execveat
+	cd $(OUTPUT) && ln -s -f $(shell basename $<) $(shell basename $@)
+$(OUTPUT)/execveat.denatured: $(OUTPUT)/execveat
+	cp $< $@
+	chmod -x $@
+$(OUTPUT)/load_address.0x%: load_address.c
+	$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=$(lastword $(subst ., ,$@)) \
+		-fPIE -pie $< -o $@
+$(OUTPUT)/load_address.static.0x%: load_address.c
+	$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-z,max-page-size=$(lastword $(subst ., ,$@)) \
+		-fPIE -static-pie $< -o $@
+$(OUTPUT)/false: false.c
+	$(CC) $(CFLAGS) $(LDFLAGS) -static $< -o $@
+$(OUTPUT)/inc: $(CHECK_EXEC_SAMPLES)/inc.c
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
+$(OUTPUT)/set-exec: $(CHECK_EXEC_SAMPLES)/set-exec.c
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
+$(OUTPUT)/script-exec.inc: $(CHECK_EXEC_SAMPLES)/script-exec.inc
+	cp $< $@
+$(OUTPUT)/script-noexec.inc: $(CHECK_EXEC_SAMPLES)/script-noexec.inc
+	cp $< $@
diff --git a/tools/testing/selftests/exec/binfmt_script.py b/tools/testing/selftests/exec/binfmt_script.py
new file mode 100755
index 000000000000..2c575a2c0eab
--- /dev/null
+++ b/tools/testing/selftests/exec/binfmt_script.py
@@ -0,0 +1,179 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that truncation of bprm->buf doesn't cause unexpected execs paths, along
+# with various other pathological cases.
+import os, subprocess
+
+# Relevant commits
+#
+# b5372fe5dc84 ("exec: load_script: Do not exec truncated interpreter path")
+# 6eb3c3d0a52d ("exec: increase BINPRM_BUF_SIZE to 256")
+
+# BINPRM_BUF_SIZE
+SIZE=256
+
+NAME_MAX=int(subprocess.check_output(["getconf", "NAME_MAX", "."]))
+
+test_num=0
+pass_num=0
+fail_num=0
+
+code='''#!/usr/bin/perl
+print "Executed interpreter! Args:\n";
+print "0 : '$0'\n";
+$counter = 1;
+foreach my $a (@ARGV) {
+    print "$counter : '$a'\n";
+    $counter++;
+}
+'''
+
+##
+# test - produce a binfmt_script hashbang line for testing
+#
+# @size:     bytes for bprm->buf line, including hashbang but not newline
+# @good:     whether this script is expected to execute correctly
+# @hashbang: the special 2 bytes for running binfmt_script
+# @leading:  any leading whitespace before the executable path
+# @root:     start of executable pathname
+# @target:   end of executable pathname
+# @arg:      bytes following the executable pathname
+# @fill:     character to fill between @root and @target to reach @size bytes
+# @newline:  character to use as newline, not counted towards @size
+# ...
+def test(name, size, good=True, leading="", root="./", target="/perl",
+                     fill="A", arg="", newline="\n", hashbang="#!"):
+    global test_num, pass_num, fail_num, tests, NAME_MAX
+    test_num += 1
+    if test_num > tests:
+        raise ValueError("more binfmt_script tests than expected! (want %d, expected %d)"
+                         % (test_num, tests))
+
+    middle = ""
+    remaining = size - len(hashbang) - len(leading) - len(root) - len(target) - len(arg)
+    # The middle of the pathname must not exceed NAME_MAX
+    while remaining >= NAME_MAX:
+        middle += fill * (NAME_MAX - 1)
+        middle += '/'
+        remaining -= NAME_MAX
+    middle += fill * remaining
+
+    dirpath = root + middle
+    binary = dirpath + target
+    if len(target):
+        os.makedirs(dirpath, mode=0o755, exist_ok=True)
+        open(binary, "w").write(code)
+        os.chmod(binary, 0o755)
+
+    buf=hashbang + leading + root + middle + target + arg + newline
+    if len(newline) > 0:
+        buf += 'echo this is not really perl\n'
+
+    script = "binfmt_script-%s" % (name)
+    open(script, "w").write(buf)
+    os.chmod(script, 0o755)
+
+    proc = subprocess.Popen(["./%s" % (script)], shell=True,
+                            stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+    stdout = proc.communicate()[0]
+
+    if proc.returncode == 0 and b'Executed interpreter' in stdout:
+        if good:
+            print("ok %d - binfmt_script %s (successful good exec)"
+                  % (test_num, name))
+            pass_num += 1
+        else:
+            print("not ok %d - binfmt_script %s succeeded when it should have failed"
+                  % (test_num, name))
+            fail_num = 1
+    else:
+        if good:
+            print("not ok %d - binfmt_script %s failed when it should have succeeded (rc:%d)"
+                  % (test_num, name, proc.returncode))
+            fail_num = 1
+        else:
+            print("ok %d - binfmt_script %s (correctly failed bad exec)"
+                  % (test_num, name))
+            pass_num += 1
+
+    # Clean up crazy binaries
+    os.unlink(script)
+    if len(target):
+        elements = binary.split('/')
+        os.unlink(binary)
+        elements.pop()
+        while len(elements) > 1:
+            os.rmdir("/".join(elements))
+            elements.pop()
+
+tests=27
+print("TAP version 1.3")
+print("1..%d" % (tests))
+
+### FAIL (8 tests)
+
+# Entire path is well past the BINFMT_BUF_SIZE.
+test(name="too-big",        size=SIZE+80, good=False)
+# Path is right at max size, making it impossible to tell if it was truncated.
+test(name="exact",          size=SIZE,    good=False)
+# Same as above, but with leading whitespace.
+test(name="exact-space",    size=SIZE,    good=False, leading=" ")
+# Huge buffer of only whitespace.
+test(name="whitespace-too-big", size=SIZE+71, good=False, root="",
+                                              fill=" ", target="")
+# A good path, but it gets truncated due to leading whitespace.
+test(name="truncated",      size=SIZE+17, good=False, leading=" " * 19)
+# Entirely empty except for #!
+test(name="empty",          size=2,       good=False, root="",
+                                          fill="", target="", newline="")
+# Within size, but entirely spaces
+test(name="spaces",         size=SIZE-1,  good=False, root="", fill=" ",
+                                          target="", newline="")
+# Newline before binary.
+test(name="newline-prefix", size=SIZE-1,  good=False, leading="\n",
+                                          root="", fill=" ", target="")
+
+### ok (19 tests)
+
+# The original test case that was broken by commit:
+# 8099b047ecc4 ("exec: load_script: don't blindly truncate shebang string")
+test(name="test.pl",        size=439, leading=" ",
+     root="./nix/store/bwav8kz8b3y471wjsybgzw84mrh4js9-perl-5.28.1/bin",
+     arg=" -I/nix/store/x6yyav38jgr924nkna62q3pkp0dgmzlx-perl5.28.1-File-Slurp-9999.25/lib/perl5/site_perl -I/nix/store/ha8v67sl8dac92r9z07vzr4gv1y9nwqz-perl5.28.1-Net-DBus-1.1.0/lib/perl5/site_perl -I/nix/store/dcrkvnjmwh69ljsvpbdjjdnqgwx90a9d-perl5.28.1-XML-Parser-2.44/lib/perl5/site_perl -I/nix/store/rmji88k2zz7h4zg97385bygcydrf2q8h-perl5.28.1-XML-Twig-3.52/lib/perl5/site_perl")
+# One byte under size, leaving newline visible.
+test(name="one-under",           size=SIZE-1)
+# Two bytes under size, leaving newline visible.
+test(name="two-under",           size=SIZE-2)
+# Exact size, but trailing whitespace visible instead of newline
+test(name="exact-trunc-whitespace", size=SIZE, arg=" ")
+# Exact size, but trailing space and first arg char visible instead of newline.
+test(name="exact-trunc-arg",     size=SIZE, arg=" f")
+# One bute under, with confirmed non-truncated arg since newline now visible.
+test(name="one-under-full-arg",  size=SIZE-1, arg=" f")
+# Short read buffer by one byte.
+test(name="one-under-no-nl",     size=SIZE-1, newline="")
+# Short read buffer by half buffer size.
+test(name="half-under-no-nl",    size=int(SIZE/2), newline="")
+# One byte under with whitespace arg. leaving wenline visible.
+test(name="one-under-trunc-arg", size=SIZE-1, arg=" ")
+# One byte under with whitespace leading. leaving wenline visible.
+test(name="one-under-leading",   size=SIZE-1, leading=" ")
+# One byte under with whitespace leading and as arg. leaving newline visible.
+test(name="one-under-leading-trunc-arg",  size=SIZE-1, leading=" ", arg=" ")
+# Same as above, but with 2 bytes under
+test(name="two-under-no-nl",     size=SIZE-2, newline="")
+test(name="two-under-trunc-arg", size=SIZE-2, arg=" ")
+test(name="two-under-leading",   size=SIZE-2, leading=" ")
+test(name="two-under-leading-trunc-arg",   size=SIZE-2, leading=" ", arg=" ")
+# Same as above, but with buffer half filled
+test(name="two-under-no-nl",     size=int(SIZE/2), newline="")
+test(name="two-under-trunc-arg", size=int(SIZE/2), arg=" ")
+test(name="two-under-leading",   size=int(SIZE/2), leading=" ")
+test(name="two-under-lead-trunc-arg", size=int(SIZE/2), leading=" ", arg=" ")
+
+print("# Totals: pass:%d fail:%d xfail:0 xpass:0 skip:0 error:0" % (pass_num, fail_num))
+
+if test_num != tests:
+    raise ValueError("fewer binfmt_script tests than expected! (ran %d, expected %d"
+                     % (test_num, tests))
diff --git a/tools/testing/selftests/exec/check-exec-tests.sh b/tools/testing/selftests/exec/check-exec-tests.sh
new file mode 100755
index 000000000000..87102906ae3c
--- /dev/null
+++ b/tools/testing/selftests/exec/check-exec-tests.sh
@@ -0,0 +1,205 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test the "inc" interpreter.
+#
+# See include/uapi/linux/securebits.h, include/uapi/linux/fcntl.h and
+# samples/check-exec/inc.c
+#
+# Copyright © 2024 Microsoft Corporation
+
+set -u -e -o pipefail
+
+EXPECTED_OUTPUT="1"
+exec 2>/dev/null
+
+DIR="$(dirname $(readlink -f "$0"))"
+source "${DIR}"/../kselftest/ktap_helpers.sh
+
+exec_direct() {
+	local expect="$1"
+	local script="$2"
+	shift 2
+	local ret=0
+	local out
+
+	# Updates PATH for `env` to execute the `inc` interpreter.
+	out="$(PATH="." "$@" "${script}")" || ret=$?
+
+	if [[ ${ret} -ne ${expect} ]]; then
+		echo "ERROR: Wrong expectation for direct file execution: ${ret}"
+		return 1
+	fi
+	if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
+		echo "ERROR: Wrong output for direct file execution: ${out}"
+		return 1
+	fi
+}
+
+exec_indirect() {
+	local expect="$1"
+	local script="$2"
+	shift 2
+	local ret=0
+	local out
+
+	# Script passed as argument.
+	out="$("$@" ./inc "${script}")" || ret=$?
+
+	if [[ ${ret} -ne ${expect} ]]; then
+		echo "ERROR: Wrong expectation for indirect file execution: ${ret}"
+		return 1
+	fi
+	if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
+		echo "ERROR: Wrong output for indirect file execution: ${out}"
+		return 1
+	fi
+}
+
+exec_stdin_reg() {
+	local expect="$1"
+	local script="$2"
+	shift 2
+	local ret=0
+	local out
+
+	# Executing stdin must be allowed if the related file is executable.
+	out="$("$@" ./inc -i < "${script}")" || ret=$?
+
+	if [[ ${ret} -ne ${expect} ]]; then
+		echo "ERROR: Wrong expectation for stdin regular file execution: ${ret}"
+		return 1
+	fi
+	if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
+		echo "ERROR: Wrong output for stdin regular file execution: ${out}"
+		return 1
+	fi
+}
+
+exec_stdin_pipe() {
+	local expect="$1"
+	shift
+	local ret=0
+	local out
+
+	# A pipe is not executable.
+	out="$(cat script-exec.inc | "$@" ./inc -i)" || ret=$?
+
+	if [[ ${ret} -ne ${expect} ]]; then
+		echo "ERROR: Wrong expectation for stdin pipe execution: ${ret}"
+		return 1
+	fi
+}
+
+exec_argument() {
+	local expect="$1"
+	local ret=0
+	shift
+	local out
+
+	# Script not coming from a file must not be executed.
+	out="$("$@" ./inc -c "$(< script-exec.inc)")" || ret=$?
+
+	if [[ ${ret} -ne ${expect} ]]; then
+		echo "ERROR: Wrong expectation for arbitrary argument execution: ${ret}"
+		return 1
+	fi
+	if [[ ${ret} -eq 0 && "${out}" != "${EXPECTED_OUTPUT}" ]]; then
+		echo "ERROR: Wrong output for arbitrary argument execution: ${out}"
+		return 1
+	fi
+}
+
+exec_interactive() {
+	exec_stdin_pipe "$@"
+	exec_argument "$@"
+}
+
+ktap_test() {
+	ktap_test_result "$*" "$@"
+}
+
+ktap_print_header
+ktap_set_plan 28
+
+# Without secbit configuration, nothing is changed.
+
+ktap_print_msg "By default, executable scripts are allowed to be interpreted and executed."
+ktap_test exec_direct 0 script-exec.inc
+ktap_test exec_indirect 0 script-exec.inc
+
+ktap_print_msg "By default, executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-exec.inc
+
+ktap_print_msg "By default, non-executable scripts are allowed to be interpreted, but not directly executed."
+# We get 126 because of direct execution by Bash.
+ktap_test exec_direct 126 script-noexec.inc
+ktap_test exec_indirect 0 script-noexec.inc
+
+ktap_print_msg "By default, non-executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-noexec.inc
+
+ktap_print_msg "By default, interactive commands are allowed to be interpreted."
+ktap_test exec_interactive 0
+
+# With only file restriction: protect non-malicious users from inadvertent errors (e.g. python ~/Downloads/*.py).
+
+ktap_print_msg "With -f, executable scripts are allowed to be interpreted and executed."
+ktap_test exec_direct 0 script-exec.inc ./set-exec -f --
+ktap_test exec_indirect 0 script-exec.inc ./set-exec -f --
+
+ktap_print_msg "With -f, executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-exec.inc ./set-exec -f --
+
+ktap_print_msg "With -f, non-executable scripts are not allowed to be executed nor interpreted."
+# Direct execution of non-executable script is alwayse denied by the kernel.
+ktap_test exec_direct 1 script-noexec.inc ./set-exec -f --
+ktap_test exec_indirect 1 script-noexec.inc ./set-exec -f --
+
+ktap_print_msg "With -f, non-executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-noexec.inc ./set-exec -f --
+
+ktap_print_msg "With -f, interactive commands are allowed to be interpreted."
+ktap_test exec_interactive 0 ./set-exec -f --
+
+# With only denied interactive commands: check or monitor script content (e.g. with LSM).
+
+ktap_print_msg "With -i, executable scripts are allowed to be interpreted and executed."
+ktap_test exec_direct 0 script-exec.inc ./set-exec -i --
+ktap_test exec_indirect 0 script-exec.inc ./set-exec -i --
+
+ktap_print_msg "With -i, executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-exec.inc ./set-exec -i --
+
+ktap_print_msg "With -i, non-executable scripts are allowed to be interpreted, but not directly executed."
+# Direct execution of non-executable script is alwayse denied by the kernel.
+ktap_test exec_direct 1 script-noexec.inc ./set-exec -i --
+ktap_test exec_indirect 0 script-noexec.inc ./set-exec -i --
+
+ktap_print_msg "With -i, non-executable stdin is not allowed to be interpreted."
+ktap_test exec_stdin_reg 1 script-noexec.inc ./set-exec -i --
+
+ktap_print_msg "With -i, interactive commands are not allowed to be interpreted."
+ktap_test exec_interactive 1 ./set-exec -i --
+
+# With both file restriction and denied interactive commands: only allow executable scripts.
+
+ktap_print_msg "With -fi, executable scripts are allowed to be interpreted and executed."
+ktap_test exec_direct 0 script-exec.inc ./set-exec -fi --
+ktap_test exec_indirect 0 script-exec.inc ./set-exec -fi --
+
+ktap_print_msg "With -fi, executable stdin is allowed to be interpreted."
+ktap_test exec_stdin_reg 0 script-exec.inc ./set-exec -fi --
+
+ktap_print_msg "With -fi, non-executable scripts are not allowed to be interpreted nor executed."
+# Direct execution of non-executable script is alwayse denied by the kernel.
+ktap_test exec_direct 1 script-noexec.inc ./set-exec -fi --
+ktap_test exec_indirect 1 script-noexec.inc ./set-exec -fi --
+
+ktap_print_msg "With -fi, non-executable stdin is not allowed to be interpreted."
+ktap_test exec_stdin_reg 1 script-noexec.inc ./set-exec -fi --
+
+ktap_print_msg "With -fi, interactive commands are not allowed to be interpreted."
+ktap_test exec_interactive 1 ./set-exec -fi --
+
+ktap_finished
diff --git a/tools/testing/selftests/exec/check-exec.c b/tools/testing/selftests/exec/check-exec.c
new file mode 100644
index 000000000000..f2397e75aa7c
--- /dev/null
+++ b/tools/testing/selftests/exec/check-exec.c
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test execveat(2) with AT_EXECVE_CHECK, and prctl(2) with
+ * SECBIT_EXEC_RESTRICT_FILE, SECBIT_EXEC_DENY_INTERACTIVE, and their locked
+ * counterparts.
+ *
+ * Copyright © 2018-2020 ANSSI
+ * Copyright © 2024 Microsoft Corporation
+ *
+ * Author: Mickaël Salaün <mic@digikod.net>
+ */
+
+#include <asm-generic/unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/prctl.h>
+#include <linux/securebits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/capability.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+
+/* Defines AT_EXECVE_CHECK without type conflicts. */
+#define _ASM_GENERIC_FCNTL_H
+#include <linux/fcntl.h>
+
+#include "kselftest_harness.h"
+
+static int sys_execveat(int dirfd, const char *pathname, char *const argv[],
+			char *const envp[], int flags)
+{
+	return syscall(__NR_execveat, dirfd, pathname, argv, envp, flags);
+}
+
+static void drop_privileges(struct __test_metadata *const _metadata)
+{
+	const unsigned int noroot = SECBIT_NOROOT | SECBIT_NOROOT_LOCKED;
+	cap_t cap_p;
+
+	if ((cap_get_secbits() & noroot) != noroot)
+		EXPECT_EQ(0, cap_set_secbits(noroot));
+
+	cap_p = cap_get_proc();
+	EXPECT_NE(NULL, cap_p);
+	EXPECT_NE(-1, cap_clear(cap_p));
+
+	/*
+	 * Drops everything, especially CAP_SETPCAP, CAP_DAC_OVERRIDE, and
+	 * CAP_DAC_READ_SEARCH.
+	 */
+	EXPECT_NE(-1, cap_set_proc(cap_p));
+	EXPECT_NE(-1, cap_free(cap_p));
+}
+
+static int test_secbits_set(const unsigned int secbits)
+{
+	int err;
+
+	err = prctl(PR_SET_SECUREBITS, secbits);
+	if (err)
+		return errno;
+	return 0;
+}
+
+FIXTURE(access)
+{
+	int memfd, pipefd;
+	int pipe_fds[2], socket_fds[2];
+};
+
+FIXTURE_VARIANT(access)
+{
+	const bool mount_exec;
+	const bool file_exec;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(access, mount_exec_file_exec) {
+	/* clang-format on */
+	.mount_exec = true,
+	.file_exec = true,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(access, mount_exec_file_noexec) {
+	/* clang-format on */
+	.mount_exec = true,
+	.file_exec = false,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(access, mount_noexec_file_exec) {
+	/* clang-format on */
+	.mount_exec = false,
+	.file_exec = true,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(access, mount_noexec_file_noexec) {
+	/* clang-format on */
+	.mount_exec = false,
+	.file_exec = false,
+};
+
+static const char binary_path[] = "./false";
+static const char workdir_path[] = "./test-mount";
+static const char reg_file_path[] = "./test-mount/regular_file";
+static const char dir_path[] = "./test-mount/directory";
+static const char block_dev_path[] = "./test-mount/block_device";
+static const char char_dev_path[] = "./test-mount/character_device";
+static const char fifo_path[] = "./test-mount/fifo";
+
+FIXTURE_SETUP(access)
+{
+	int procfd_path_size;
+	static const char path_template[] = "/proc/self/fd/%d";
+	char procfd_path[sizeof(path_template) + 10];
+
+	/* Makes sure we are not already restricted nor locked. */
+	EXPECT_EQ(0, test_secbits_set(0));
+
+	/*
+	 * Cleans previous workspace if any error previously happened (don't
+	 * check errors).
+	 */
+	umount(workdir_path);
+	rmdir(workdir_path);
+
+	/* Creates a clean mount point. */
+	ASSERT_EQ(0, mkdir(workdir_path, 00700));
+	ASSERT_EQ(0, mount("test", workdir_path, "tmpfs",
+			   MS_MGC_VAL | (variant->mount_exec ? 0 : MS_NOEXEC),
+			   "mode=0700,size=9m"));
+
+	/* Creates a regular file. */
+	ASSERT_EQ(0, mknod(reg_file_path,
+			   S_IFREG | (variant->file_exec ? 0700 : 0600), 0));
+	/* Creates a directory. */
+	ASSERT_EQ(0, mkdir(dir_path, variant->file_exec ? 0700 : 0600));
+	/* Creates a character device: /dev/null. */
+	ASSERT_EQ(0, mknod(char_dev_path, S_IFCHR | 0400, makedev(1, 3)));
+	/* Creates a block device: /dev/loop0 */
+	ASSERT_EQ(0, mknod(block_dev_path, S_IFBLK | 0400, makedev(7, 0)));
+	/* Creates a fifo. */
+	ASSERT_EQ(0, mknod(fifo_path, S_IFIFO | 0600, 0));
+
+	/* Creates a regular file without user mount point. */
+	self->memfd = memfd_create("test-exec-probe", MFD_CLOEXEC);
+	ASSERT_LE(0, self->memfd);
+	/* Sets mode, which must be ignored by the exec check. */
+	ASSERT_EQ(0, fchmod(self->memfd, variant->file_exec ? 0700 : 0600));
+
+	/* Creates a pipefs file descriptor. */
+	ASSERT_EQ(0, pipe(self->pipe_fds));
+	procfd_path_size = snprintf(procfd_path, sizeof(procfd_path),
+				    path_template, self->pipe_fds[0]);
+	ASSERT_LT(procfd_path_size, sizeof(procfd_path));
+	self->pipefd = open(procfd_path, O_RDWR | O_CLOEXEC);
+	ASSERT_LE(0, self->pipefd);
+	ASSERT_EQ(0, fchmod(self->pipefd, variant->file_exec ? 0700 : 0600));
+
+	/* Creates a socket file descriptor. */
+	ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0,
+				self->socket_fds));
+}
+
+FIXTURE_TEARDOWN_PARENT(access)
+{
+	/* There is no need to unlink the test files. */
+	EXPECT_EQ(0, umount(workdir_path));
+	EXPECT_EQ(0, rmdir(workdir_path));
+}
+
+static void fill_exec_fd(struct __test_metadata *_metadata, const int fd_out)
+{
+	char buf[1024];
+	size_t len;
+	int fd_in;
+
+	fd_in = open(binary_path, O_CLOEXEC | O_RDONLY);
+	ASSERT_LE(0, fd_in);
+	/* Cannot use copy_file_range(2) because of EXDEV. */
+	len = read(fd_in, buf, sizeof(buf));
+	EXPECT_LE(0, len);
+	while (len > 0) {
+		EXPECT_EQ(len, write(fd_out, buf, len))
+		{
+			TH_LOG("Failed to write: %s (%d)", strerror(errno),
+			       errno);
+		}
+		len = read(fd_in, buf, sizeof(buf));
+		EXPECT_LE(0, len);
+	}
+	EXPECT_EQ(0, close(fd_in));
+}
+
+static void fill_exec_path(struct __test_metadata *_metadata,
+			   const char *const path)
+{
+	int fd_out;
+
+	fd_out = open(path, O_CLOEXEC | O_WRONLY);
+	ASSERT_LE(0, fd_out)
+	{
+		TH_LOG("Failed to open %s: %s", path, strerror(errno));
+	}
+	fill_exec_fd(_metadata, fd_out);
+	EXPECT_EQ(0, close(fd_out));
+}
+
+static void test_exec_fd(struct __test_metadata *_metadata, const int fd,
+			 const int err_code)
+{
+	char *const argv[] = { "", NULL };
+	int access_ret, access_errno;
+
+	/*
+	 * If we really execute fd, filled with the "false" binary, the current
+	 * thread will exits with an error, which will be interpreted by the
+	 * test framework as an error.  With AT_EXECVE_CHECK, we only check a
+	 * potential successful execution.
+	 */
+	access_ret = sys_execveat(fd, "", argv, NULL,
+				  AT_EMPTY_PATH | AT_EXECVE_CHECK);
+	access_errno = errno;
+	if (err_code) {
+		EXPECT_EQ(-1, access_ret);
+		EXPECT_EQ(err_code, access_errno)
+		{
+			TH_LOG("Wrong error for execveat(2): %s (%d)",
+			       strerror(access_errno), errno);
+		}
+	} else {
+		EXPECT_EQ(0, access_ret)
+		{
+			TH_LOG("Access denied: %s", strerror(access_errno));
+		}
+	}
+}
+
+static void test_exec_path(struct __test_metadata *_metadata,
+			   const char *const path, const int err_code)
+{
+	int flags = O_CLOEXEC;
+	int fd;
+
+	/* Do not block on pipes. */
+	if (path == fifo_path)
+		flags |= O_NONBLOCK;
+
+	fd = open(path, flags | O_RDONLY);
+	ASSERT_LE(0, fd)
+	{
+		TH_LOG("Failed to open %s: %s", path, strerror(errno));
+	}
+	test_exec_fd(_metadata, fd, err_code);
+	EXPECT_EQ(0, close(fd));
+}
+
+/* Tests that we don't get ENOEXEC. */
+TEST_F(access, regular_file_empty)
+{
+	const int exec = variant->mount_exec && variant->file_exec;
+
+	test_exec_path(_metadata, reg_file_path, exec ? 0 : EACCES);
+
+	drop_privileges(_metadata);
+	test_exec_path(_metadata, reg_file_path, exec ? 0 : EACCES);
+}
+
+TEST_F(access, regular_file_elf)
+{
+	const int exec = variant->mount_exec && variant->file_exec;
+
+	fill_exec_path(_metadata, reg_file_path);
+
+	test_exec_path(_metadata, reg_file_path, exec ? 0 : EACCES);
+
+	drop_privileges(_metadata);
+	test_exec_path(_metadata, reg_file_path, exec ? 0 : EACCES);
+}
+
+/* Tests that we don't get ENOEXEC. */
+TEST_F(access, memfd_empty)
+{
+	const int exec = variant->file_exec;
+
+	test_exec_fd(_metadata, self->memfd, exec ? 0 : EACCES);
+
+	drop_privileges(_metadata);
+	test_exec_fd(_metadata, self->memfd, exec ? 0 : EACCES);
+}
+
+TEST_F(access, memfd_elf)
+{
+	const int exec = variant->file_exec;
+
+	fill_exec_fd(_metadata, self->memfd);
+
+	test_exec_fd(_metadata, self->memfd, exec ? 0 : EACCES);
+
+	drop_privileges(_metadata);
+	test_exec_fd(_metadata, self->memfd, exec ? 0 : EACCES);
+}
+
+TEST_F(access, non_regular_files)
+{
+	test_exec_path(_metadata, dir_path, EACCES);
+	test_exec_path(_metadata, block_dev_path, EACCES);
+	test_exec_path(_metadata, char_dev_path, EACCES);
+	test_exec_path(_metadata, fifo_path, EACCES);
+	test_exec_fd(_metadata, self->socket_fds[0], EACCES);
+	test_exec_fd(_metadata, self->pipefd, EACCES);
+}
+
+/* clang-format off */
+FIXTURE(secbits) {};
+/* clang-format on */
+
+FIXTURE_VARIANT(secbits)
+{
+	const bool is_privileged;
+	const int error;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(secbits, priv) {
+	/* clang-format on */
+	.is_privileged = true,
+	.error = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(secbits, unpriv) {
+	/* clang-format on */
+	.is_privileged = false,
+	.error = EPERM,
+};
+
+FIXTURE_SETUP(secbits)
+{
+	/* Makes sure no exec bits are set. */
+	EXPECT_EQ(0, test_secbits_set(0));
+	EXPECT_EQ(0, prctl(PR_GET_SECUREBITS));
+
+	if (!variant->is_privileged)
+		drop_privileges(_metadata);
+}
+
+FIXTURE_TEARDOWN(secbits)
+{
+}
+
+TEST_F(secbits, legacy)
+{
+	EXPECT_EQ(variant->error, test_secbits_set(0));
+}
+
+#define CHILD(...)                     \
+	do {                           \
+		pid_t child = vfork(); \
+		EXPECT_LE(0, child);   \
+		if (child == 0) {      \
+			__VA_ARGS__;   \
+			_exit(0);      \
+		}                      \
+	} while (0)
+
+TEST_F(secbits, exec)
+{
+	unsigned int secbits = prctl(PR_GET_SECUREBITS);
+
+	secbits |= SECBIT_EXEC_RESTRICT_FILE;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+	EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS));
+	CHILD(EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS)));
+
+	secbits |= SECBIT_EXEC_DENY_INTERACTIVE;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+	EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS));
+	CHILD(EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS)));
+
+	secbits &= ~(SECBIT_EXEC_RESTRICT_FILE | SECBIT_EXEC_DENY_INTERACTIVE);
+	EXPECT_EQ(0, test_secbits_set(secbits));
+	EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS));
+	CHILD(EXPECT_EQ(secbits, prctl(PR_GET_SECUREBITS)));
+}
+
+TEST_F(secbits, check_locked_set)
+{
+	unsigned int secbits = prctl(PR_GET_SECUREBITS);
+
+	secbits |= SECBIT_EXEC_RESTRICT_FILE;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+	secbits |= SECBIT_EXEC_RESTRICT_FILE_LOCKED;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+
+	/* Checks lock set but unchanged. */
+	EXPECT_EQ(variant->error, test_secbits_set(secbits));
+	CHILD(EXPECT_EQ(variant->error, test_secbits_set(secbits)));
+
+	secbits &= ~SECBIT_EXEC_RESTRICT_FILE;
+	EXPECT_EQ(EPERM, test_secbits_set(0));
+	CHILD(EXPECT_EQ(EPERM, test_secbits_set(0)));
+}
+
+TEST_F(secbits, check_locked_unset)
+{
+	unsigned int secbits = prctl(PR_GET_SECUREBITS);
+
+	secbits |= SECBIT_EXEC_RESTRICT_FILE_LOCKED;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+
+	/* Checks lock unset but unchanged. */
+	EXPECT_EQ(variant->error, test_secbits_set(secbits));
+	CHILD(EXPECT_EQ(variant->error, test_secbits_set(secbits)));
+
+	secbits &= ~SECBIT_EXEC_RESTRICT_FILE;
+	EXPECT_EQ(EPERM, test_secbits_set(0));
+	CHILD(EXPECT_EQ(EPERM, test_secbits_set(0)));
+}
+
+TEST_F(secbits, restrict_locked_set)
+{
+	unsigned int secbits = prctl(PR_GET_SECUREBITS);
+
+	secbits |= SECBIT_EXEC_DENY_INTERACTIVE;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+	secbits |= SECBIT_EXEC_DENY_INTERACTIVE_LOCKED;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+
+	/* Checks lock set but unchanged. */
+	EXPECT_EQ(variant->error, test_secbits_set(secbits));
+	CHILD(EXPECT_EQ(variant->error, test_secbits_set(secbits)));
+
+	secbits &= ~SECBIT_EXEC_DENY_INTERACTIVE;
+	EXPECT_EQ(EPERM, test_secbits_set(0));
+	CHILD(EXPECT_EQ(EPERM, test_secbits_set(0)));
+}
+
+TEST_F(secbits, restrict_locked_unset)
+{
+	unsigned int secbits = prctl(PR_GET_SECUREBITS);
+
+	secbits |= SECBIT_EXEC_DENY_INTERACTIVE_LOCKED;
+	EXPECT_EQ(0, test_secbits_set(secbits));
+
+	/* Checks lock unset but unchanged. */
+	EXPECT_EQ(variant->error, test_secbits_set(secbits));
+	CHILD(EXPECT_EQ(variant->error, test_secbits_set(secbits)));
+
+	secbits &= ~SECBIT_EXEC_DENY_INTERACTIVE;
+	EXPECT_EQ(EPERM, test_secbits_set(0));
+	CHILD(EXPECT_EQ(EPERM, test_secbits_set(0)));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/exec/config b/tools/testing/selftests/exec/config
new file mode 100644
index 000000000000..c308079867b3
--- /dev/null
+++ b/tools/testing/selftests/exec/config
@@ -0,0 +1,2 @@
+CONFIG_BLK_DEV=y
+CONFIG_BLK_DEV_LOOP=y
diff --git a/tools/testing/selftests/exec/execveat.c b/tools/testing/selftests/exec/execveat.c
index 8d5d1d2ee7c1..d37c068ed5fe 100644
--- a/tools/testing/selftests/exec/execveat.c
+++ b/tools/testing/selftests/exec/execveat.c
@@ -1,12 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2014 Google, Inc.
  *
- * Licensed under the terms of the GNU GPL License version 2
- *
  * Selftests for execveat(2).
  */
 
+#ifndef _GNU_SOURCE
 #define _GNU_SOURCE  /* to get O_PATH, AT_EMPTY_PATH */
+#endif
 #include <sys/sendfile.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
@@ -20,6 +21,13 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "kselftest.h"
+
+#define TESTS_EXPECTED 54
+#define TEST_NAME_LEN (PATH_MAX * 4)
+
+#define CHECK_COMM "CHECK_COMM"
+
 static char longpath[2 * PATH_MAX] = "";
 static char *envp[] = { "IN_TEST=yes", NULL, NULL };
 static char *argv[] = { "execveat", "99", NULL };
@@ -40,71 +48,84 @@ static int execveat_(int fd, const char *path, char **argv, char **envp,
 static int _check_execveat_fail(int fd, const char *path, int flags,
 				int expected_errno, const char *errno_str)
 {
+	char test_name[TEST_NAME_LEN];
 	int rc;
 
 	errno = 0;
-	printf("Check failure of execveat(%d, '%s', %d) with %s... ",
-		fd, path?:"(null)", flags, errno_str);
+	snprintf(test_name, sizeof(test_name),
+		 "Check failure of execveat(%d, '%s', %d) with %s",
+		 fd, path?:"(null)", flags, errno_str);
 	rc = execveat_(fd, path, argv, envp, flags);
 
 	if (rc > 0) {
-		printf("[FAIL] (unexpected success from execveat(2))\n");
+		ksft_print_msg("unexpected success from execveat(2)\n");
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
 	if (errno != expected_errno) {
-		printf("[FAIL] (expected errno %d (%s) not %d (%s)\n",
-			expected_errno, strerror(expected_errno),
-			errno, strerror(errno));
+		ksft_print_msg("expected errno %d (%s) not %d (%s)\n",
+			       expected_errno, strerror(expected_errno),
+			       errno, strerror(errno));
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
-	printf("[OK]\n");
+	ksft_test_result_pass("%s\n", test_name);
 	return 0;
 }
 
 static int check_execveat_invoked_rc(int fd, const char *path, int flags,
 				     int expected_rc, int expected_rc2)
 {
+	char test_name[TEST_NAME_LEN];
 	int status;
 	int rc;
 	pid_t child;
 	int pathlen = path ? strlen(path) : 0;
 
 	if (pathlen > 40)
-		printf("Check success of execveat(%d, '%.20s...%s', %d)... ",
-			fd, path, (path + pathlen - 20), flags);
+		snprintf(test_name, sizeof(test_name),
+			 "Check success of execveat(%d, '%.20s...%s', %d)... ",
+			 fd, path, (path + pathlen - 20), flags);
 	else
-		printf("Check success of execveat(%d, '%s', %d)... ",
-			fd, path?:"(null)", flags);
+		snprintf(test_name, sizeof(test_name),
+			 "Check success of execveat(%d, '%s', %d)... ",
+			 fd, path?:"(null)", flags);
+
 	child = fork();
 	if (child < 0) {
-		printf("[FAIL] (fork() failed)\n");
+		ksft_perror("fork() failed");
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
 	if (child == 0) {
 		/* Child: do execveat(). */
 		rc = execveat_(fd, path, argv, envp, flags);
-		printf("[FAIL]: execveat() failed, rc=%d errno=%d (%s)\n",
-			rc, errno, strerror(errno));
-		exit(1);  /* should not reach here */
+		ksft_print_msg("child execveat() failed, rc=%d errno=%d (%s)\n",
+			       rc, errno, strerror(errno));
+		exit(errno);
 	}
 	/* Parent: wait for & check child's exit status. */
 	rc = waitpid(child, &status, 0);
 	if (rc != child) {
-		printf("[FAIL] (waitpid(%d,...) returned %d)\n", child, rc);
+		ksft_print_msg("waitpid(%d,...) returned %d\n", child, rc);
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
 	if (!WIFEXITED(status)) {
-		printf("[FAIL] (child %d did not exit cleanly, status=%08x)\n",
-			child, status);
+		ksft_print_msg("child %d did not exit cleanly, status=%08x\n",
+			       child, status);
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
 	if ((WEXITSTATUS(status) != expected_rc) &&
 	    (WEXITSTATUS(status) != expected_rc2)) {
-		printf("[FAIL] (child %d exited with %d not %d nor %d)\n",
-			child, WEXITSTATUS(status), expected_rc, expected_rc2);
+		ksft_print_msg("child %d exited with %d neither %d nor %d\n",
+			       child, WEXITSTATUS(status), expected_rc,
+			       expected_rc2);
+		ksft_test_result_fail("%s\n", test_name);
 		return 1;
 	}
-	printf("[OK]\n");
+	ksft_test_result_pass("%s\n", test_name);
 	return 0;
 }
 
@@ -126,11 +147,9 @@ static int open_or_die(const char *filename, int flags)
 {
 	int fd = open(filename, flags);
 
-	if (fd < 0) {
-		printf("Failed to open '%s'; "
+	if (fd < 0)
+		ksft_exit_fail_msg("Failed to open '%s'; "
 			"check prerequisites are available\n", filename);
-		exit(1);
-	}
 	return fd;
 }
 
@@ -147,7 +166,7 @@ static void exe_cp(const char *src, const char *dest)
 }
 
 #define XX_DIR_LEN 200
-static int check_execveat_pathmax(int dot_dfd, const char *src, int is_script)
+static int check_execveat_pathmax(int root_dfd, const char *src, int is_script)
 {
 	int fail = 0;
 	int ii, count, len;
@@ -156,20 +175,29 @@ static int check_execveat_pathmax(int dot_dfd, const char *src, int is_script)
 
 	if (*longpath == '\0') {
 		/* Create a filename close to PATH_MAX in length */
+		char *cwd = getcwd(NULL, 0);
+
+		if (!cwd) {
+			ksft_perror("Failed to getcwd()");
+			return 2;
+		}
+		strcpy(longpath, cwd);
+		strcat(longpath, "/");
 		memset(longname, 'x', XX_DIR_LEN - 1);
 		longname[XX_DIR_LEN - 1] = '/';
 		longname[XX_DIR_LEN] = '\0';
-		count = (PATH_MAX - 3) / XX_DIR_LEN;
+		count = (PATH_MAX - 3 - strlen(cwd)) / XX_DIR_LEN;
 		for (ii = 0; ii < count; ii++) {
 			strcat(longpath, longname);
 			mkdir(longpath, 0755);
 		}
-		len = (PATH_MAX - 3) - (count * XX_DIR_LEN);
+		len = (PATH_MAX - 3 - strlen(cwd)) - (count * XX_DIR_LEN);
 		if (len <= 0)
 			len = 1;
 		memset(longname, 'y', len);
 		longname[len] = '\0';
 		strcat(longpath, longname);
+		free(cwd);
 	}
 	exe_cp(src, longpath);
 
@@ -180,17 +208,17 @@ static int check_execveat_pathmax(int dot_dfd, const char *src, int is_script)
 	 */
 	fd = open(longpath, O_RDONLY);
 	if (fd > 0) {
-		printf("Invoke copy of '%s' via filename of length %zu:\n",
-			src, strlen(longpath));
+		ksft_print_msg("Invoke copy of '%s' via filename of length %zu:\n",
+			       src, strlen(longpath));
 		fail += check_execveat(fd, "", AT_EMPTY_PATH);
 	} else {
-		printf("Failed to open length %zu filename, errno=%d (%s)\n",
-			strlen(longpath), errno, strerror(errno));
+		ksft_print_msg("Failed to open length %zu filename, errno=%d (%s)\n",
+			       strlen(longpath), errno, strerror(errno));
 		fail++;
 	}
 
 	/*
-	 * Execute as a long pathname relative to ".".  If this is a script,
+	 * Execute as a long pathname relative to "/".  If this is a script,
 	 * the interpreter will launch but fail to open the script because its
 	 * name ("/dev/fd/5/xxx....") is bigger than PATH_MAX.
 	 *
@@ -199,15 +227,41 @@ static int check_execveat_pathmax(int dot_dfd, const char *src, int is_script)
 	 * "If the command name is found, but it is not an executable utility,
 	 * the exit status shall be 126."), so allow either.
 	 */
-	if (is_script)
-		fail += check_execveat_invoked_rc(dot_dfd, longpath, 0,
+	if (is_script) {
+		ksft_print_msg("Invoke script via root_dfd and relative filename\n");
+		fail += check_execveat_invoked_rc(root_dfd, longpath + 1, 0,
 						  127, 126);
-	else
-		fail += check_execveat(dot_dfd, longpath, 0);
+	} else {
+		ksft_print_msg("Invoke exec via root_dfd and relative filename\n");
+		fail += check_execveat(root_dfd, longpath + 1, 0);
+	}
 
 	return fail;
 }
 
+static int check_execveat_comm(int fd, char *argv0, char *expected)
+{
+	char buf[128], *old_env, *old_argv0;
+	int ret;
+
+	snprintf(buf, sizeof(buf), CHECK_COMM "=%s", expected);
+
+	old_env = envp[1];
+	envp[1] = buf;
+
+	old_argv0 = argv[0];
+	argv[0] = argv0;
+
+	ksft_print_msg("Check execveat(AT_EMPTY_PATH)'s comm is %s\n",
+		       expected);
+	ret = check_execveat_invoked_rc(fd, "", AT_EMPTY_PATH, 0, 0);
+
+	envp[1] = old_env;
+	argv[0] = old_argv0;
+
+	return ret;
+}
+
 static int run_tests(void)
 {
 	int fail = 0;
@@ -218,6 +272,7 @@ static int run_tests(void)
 	int subdir_dfd_ephemeral = open_or_die("subdir.ephemeral",
 					       O_DIRECTORY|O_RDONLY);
 	int dot_dfd = open_or_die(".", O_DIRECTORY|O_RDONLY);
+	int root_dfd = open_or_die("/", O_DIRECTORY|O_RDONLY);
 	int dot_dfd_path = open_or_die(".", O_DIRECTORY|O_RDONLY|O_PATH);
 	int dot_dfd_cloexec = open_or_die(".", O_DIRECTORY|O_RDONLY|O_CLOEXEC);
 	int fd = open_or_die("execveat", O_RDONLY);
@@ -238,8 +293,8 @@ static int run_tests(void)
 	errno = 0;
 	execveat_(-1, NULL, NULL, NULL, 0);
 	if (errno == ENOSYS) {
-		printf("[FAIL] ENOSYS calling execveat - no kernel support?\n");
-		return 1;
+		ksft_exit_skip(
+			"ENOSYS calling execveat - no kernel support?\n");
 	}
 
 	/* Change file position to confirm it doesn't affect anything */
@@ -299,6 +354,10 @@ static int run_tests(void)
 	fail += check_execveat_fail(AT_FDCWD, fullname_symlink,
 				    AT_SYMLINK_NOFOLLOW, ELOOP);
 
+	/*  Non-regular file failure */
+	fail += check_execveat_fail(dot_dfd, "pipe", 0, EACCES);
+	unlink("pipe");
+
 	/* Shell script wrapping executable file: */
 	/*   dfd + path */
 	fail += check_execveat(subdir_dfd, "../script", 0);
@@ -353,15 +412,23 @@ static int run_tests(void)
 	/* Attempt to execute relative to non-directory => ENOTDIR */
 	fail += check_execveat_fail(fd, "execveat", 0, ENOTDIR);
 
-	fail += check_execveat_pathmax(dot_dfd, "execveat", 0);
-	fail += check_execveat_pathmax(dot_dfd, "script", 1);
+	fail += check_execveat_pathmax(root_dfd, "execveat", 0);
+	fail += check_execveat_pathmax(root_dfd, "script", 1);
+
+	/* /proc/pid/comm gives filename by default */
+	fail += check_execveat_comm(fd, "sentinel", "execveat");
+	/* /proc/pid/comm gives argv[0] when invoked via link */
+	fail += check_execveat_comm(fd_symlink, "sentinel", "execveat");
+	/* /proc/pid/comm gives filename if NULL is passed */
+	fail += check_execveat_comm(fd, NULL, "execveat");
+
 	return fail;
 }
 
 static void prerequisites(void)
 {
 	int fd;
-	const char *script = "#!/bin/sh\nexit $*\n";
+	const char *script = "#!/bin/bash\nexit $*\n";
 
 	/* Create ephemeral copies of files */
 	exe_cp("execveat", "execveat.ephemeral");
@@ -372,6 +439,8 @@ static void prerequisites(void)
 	fd = open("subdir.ephemeral/script", O_RDWR|O_CREAT|O_TRUNC, 0755);
 	write(fd, script, strlen(script));
 	close(fd);
+
+	mkfifo("pipe", 0755);
 }
 
 int main(int argc, char **argv)
@@ -379,34 +448,73 @@ int main(int argc, char **argv)
 	int ii;
 	int rc;
 	const char *verbose = getenv("VERBOSE");
+	const char *check_comm = getenv(CHECK_COMM);
 
-	if (argc >= 2) {
-		/* If we are invoked with an argument, don't run tests. */
+	if (argc >= 2 || check_comm) {
+		/*
+		 * If we are invoked with an argument, or no arguments but a
+		 * command to check, don't run tests.
+		 */
 		const char *in_test = getenv("IN_TEST");
 
 		if (verbose) {
-			printf("  invoked with:");
+			ksft_print_msg("invoked with:\n");
 			for (ii = 0; ii < argc; ii++)
-				printf(" [%d]='%s'", ii, argv[ii]);
-			printf("\n");
+				ksft_print_msg("\t[%d]='%s\n'", ii, argv[ii]);
+		}
+
+		/* If the tests wanted us to check the command, do so. */
+		if (check_comm) {
+			/* TASK_COMM_LEN == 16 */
+			char buf[32];
+			int fd, ret;
+
+			fd = open("/proc/self/comm", O_RDONLY);
+			if (fd < 0) {
+				ksft_perror("open() comm failed");
+				exit(1);
+			}
+
+			ret = read(fd, buf, sizeof(buf));
+			if (ret < 0) {
+				ksft_perror("read() comm failed");
+				close(fd);
+				exit(1);
+			}
+			close(fd);
+
+			// trim off the \n
+			buf[ret-1] = 0;
+
+			if (strcmp(buf, check_comm)) {
+				ksft_print_msg("bad comm, got: %s expected: %s\n",
+					       buf, check_comm);
+				exit(1);
+			}
+
+			exit(0);
 		}
 
 		/* Check expected environment transferred. */
 		if (!in_test || strcmp(in_test, "yes") != 0) {
-			printf("[FAIL] (no IN_TEST=yes in env)\n");
+			ksft_print_msg("no IN_TEST=yes in env\n");
 			return 1;
 		}
 
 		/* Use the final argument as an exit code. */
 		rc = atoi(argv[argc - 1]);
-		fflush(stdout);
+		exit(rc);
 	} else {
+		ksft_print_header();
+		ksft_set_plan(TESTS_EXPECTED);
 		prerequisites();
 		if (verbose)
 			envp[1] = "VERBOSE=1";
 		rc = run_tests();
 		if (rc > 0)
 			printf("%d tests failed\n", rc);
+		ksft_finished();
 	}
+
 	return rc;
 }
diff --git a/tools/testing/selftests/exec/false.c b/tools/testing/selftests/exec/false.c
new file mode 100644
index 000000000000..104383ec3a79
--- /dev/null
+++ b/tools/testing/selftests/exec/false.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+int main(void)
+{
+	return 1;
+}
diff --git a/tools/testing/selftests/exec/load_address.c b/tools/testing/selftests/exec/load_address.c
new file mode 100644
index 000000000000..55fd3732f029
--- /dev/null
+++ b/tools/testing/selftests/exec/load_address.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <link.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include "kselftest.h"
+
+struct Statistics {
+	unsigned long long load_address;
+	unsigned long long alignment;
+	bool interp;
+};
+
+int ExtractStatistics(struct dl_phdr_info *info, size_t size, void *data)
+{
+	struct Statistics *stats = (struct Statistics *) data;
+	int i;
+
+	if (info->dlpi_name != NULL && info->dlpi_name[0] != '\0') {
+		// Ignore headers from other than the executable.
+		return 2;
+	}
+
+	stats->load_address = (unsigned long long) info->dlpi_addr;
+	stats->alignment = 0;
+
+	for (i = 0; i < info->dlpi_phnum; i++) {
+		unsigned long long align;
+
+		if (info->dlpi_phdr[i].p_type == PT_INTERP) {
+			stats->interp = true;
+			continue;
+		}
+
+		if (info->dlpi_phdr[i].p_type != PT_LOAD)
+			continue;
+
+		align = info->dlpi_phdr[i].p_align;
+
+		if (align > stats->alignment)
+			stats->alignment = align;
+	}
+
+	return 1;  // Terminate dl_iterate_phdr.
+}
+
+int main(int argc, char **argv)
+{
+	struct Statistics extracted = { };
+	unsigned long long misalign, pow2;
+	bool interp_needed;
+	char buf[1024];
+	FILE *maps;
+	int ret;
+
+	ksft_print_header();
+	ksft_set_plan(4);
+
+	/* Dump maps file for debugging reference. */
+	maps = fopen("/proc/self/maps", "r");
+	if (!maps)
+		ksft_exit_fail_msg("FAILED: /proc/self/maps: %s\n", strerror(errno));
+	while (fgets(buf, sizeof(buf), maps)) {
+		ksft_print_msg("%s", buf);
+	}
+	fclose(maps);
+
+	/* Walk the program headers. */
+	ret = dl_iterate_phdr(ExtractStatistics, &extracted);
+	if (ret != 1)
+		ksft_exit_fail_msg("FAILED: dl_iterate_phdr\n");
+
+	/* Report our findings. */
+	ksft_print_msg("load_address=%#llx alignment=%#llx\n",
+		       extracted.load_address, extracted.alignment);
+
+	/* If we're named with ".static." we expect no INTERP. */
+	interp_needed = strstr(argv[0], ".static.") == NULL;
+
+	/* Were we built as expected? */
+	ksft_test_result(interp_needed == extracted.interp,
+			 "%s INTERP program header %s\n",
+			 interp_needed ? "Wanted" : "Unwanted",
+			 extracted.interp ? "seen" : "missing");
+
+	/* Did we find an alignment? */
+	ksft_test_result(extracted.alignment != 0,
+			 "Alignment%s found\n", extracted.alignment ? "" : " NOT");
+
+	/* Is the alignment sane? */
+	pow2 = extracted.alignment & (extracted.alignment - 1);
+	ksft_test_result(pow2 == 0,
+			 "Alignment is%s a power of 2: %#llx\n",
+			 pow2 == 0 ? "" : " NOT", extracted.alignment);
+
+	/* Is the load address aligned? */
+	misalign = extracted.load_address & (extracted.alignment - 1);
+	ksft_test_result(misalign == 0, "Load Address is %saligned (%#llx)\n",
+			 misalign ? "MIS" : "", misalign);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/exec/non-regular.c b/tools/testing/selftests/exec/non-regular.c
new file mode 100644
index 000000000000..14ac36487df5
--- /dev/null
+++ b/tools/testing/selftests/exec/non-regular.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/types.h>
+
+#include "kselftest_harness.h"
+
+/* Remove a file, ignoring the result if it didn't exist. */
+void rm(struct __test_metadata *_metadata, const char *pathname,
+	int is_dir)
+{
+	int rc;
+
+	if (is_dir)
+		rc = rmdir(pathname);
+	else
+		rc = unlink(pathname);
+
+	if (rc < 0) {
+		ASSERT_EQ(errno, ENOENT) {
+			TH_LOG("Not ENOENT: %s", pathname);
+		}
+	} else {
+		ASSERT_EQ(rc, 0) {
+			TH_LOG("Failed to remove: %s", pathname);
+		}
+	}
+}
+
+FIXTURE(file) {
+	char *pathname;
+	int is_dir;
+};
+
+FIXTURE_VARIANT(file)
+{
+	const char *name;
+	int expected;
+	int is_dir;
+	void (*setup)(struct __test_metadata *_metadata,
+		      FIXTURE_DATA(file) *self,
+		      const FIXTURE_VARIANT(file) *variant);
+	int major, minor, mode; /* for mknod() */
+};
+
+void setup_link(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	const char * const paths[] = {
+		"/bin/true",
+		"/usr/bin/true",
+	};
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(paths); i++) {
+		if (access(paths[i], X_OK) == 0) {
+			ASSERT_EQ(symlink(paths[i], self->pathname), 0);
+			return;
+		}
+	}
+	ASSERT_EQ(1, 0) {
+		TH_LOG("Could not find viable 'true' binary");
+	}
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFLNK)
+{
+	.name = "S_IFLNK",
+	.expected = ELOOP,
+	.setup = setup_link,
+};
+
+void setup_dir(struct __test_metadata *_metadata,
+	       FIXTURE_DATA(file) *self,
+	       const FIXTURE_VARIANT(file) *variant)
+{
+	ASSERT_EQ(mkdir(self->pathname, 0755), 0);
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFDIR)
+{
+	.name = "S_IFDIR",
+	.is_dir = 1,
+	.expected = EACCES,
+	.setup = setup_dir,
+};
+
+void setup_node(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	dev_t dev;
+	int rc;
+
+	dev = makedev(variant->major, variant->minor);
+	rc = mknod(self->pathname, 0755 | variant->mode, dev);
+	ASSERT_EQ(rc, 0) {
+		if (errno == EPERM)
+			SKIP(return, "Please run as root; cannot mknod(%s)",
+				variant->name);
+	}
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFBLK)
+{
+	.name = "S_IFBLK",
+	.expected = EACCES,
+	.setup = setup_node,
+	/* /dev/loop0 */
+	.major = 7,
+	.minor = 0,
+	.mode = S_IFBLK,
+};
+
+FIXTURE_VARIANT_ADD(file, S_IFCHR)
+{
+	.name = "S_IFCHR",
+	.expected = EACCES,
+	.setup = setup_node,
+	/* /dev/zero */
+	.major = 1,
+	.minor = 5,
+	.mode = S_IFCHR,
+};
+
+void setup_fifo(struct __test_metadata *_metadata,
+		FIXTURE_DATA(file) *self,
+		const FIXTURE_VARIANT(file) *variant)
+{
+	ASSERT_EQ(mkfifo(self->pathname, 0755), 0);
+}
+
+FIXTURE_VARIANT_ADD(file, S_IFIFO)
+{
+	.name = "S_IFIFO",
+	.expected = EACCES,
+	.setup = setup_fifo,
+};
+
+FIXTURE_SETUP(file)
+{
+	ASSERT_GT(asprintf(&self->pathname, "%s.test", variant->name), 6);
+	self->is_dir = variant->is_dir;
+
+	rm(_metadata, self->pathname, variant->is_dir);
+	variant->setup(_metadata, self, variant);
+}
+
+FIXTURE_TEARDOWN(file)
+{
+	rm(_metadata, self->pathname, self->is_dir);
+}
+
+TEST_F(file, exec_errno)
+{
+	char * const argv[2] = { (char * const)self->pathname, NULL };
+
+	EXPECT_LT(execv(argv[0], argv), 0);
+	EXPECT_EQ(errno, variant->expected);
+}
+
+/* S_IFSOCK */
+FIXTURE(sock)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(sock)
+{
+	self->fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(self->fd, 0);
+}
+
+FIXTURE_TEARDOWN(sock)
+{
+	if (self->fd >= 0)
+		ASSERT_EQ(close(self->fd), 0);
+}
+
+TEST_F(sock, exec_errno)
+{
+	char * const argv[2] = { " magic socket ", NULL };
+	char * const envp[1] = { NULL };
+
+	EXPECT_LT(fexecve(self->fd, argv, envp), 0);
+	EXPECT_EQ(errno, EACCES);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/exec/null-argv.c b/tools/testing/selftests/exec/null-argv.c
new file mode 100644
index 000000000000..4940aee5bb38
--- /dev/null
+++ b/tools/testing/selftests/exec/null-argv.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Test that empty argvs are swapped out for a single empty string. */
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "kselftest.h"
+
+#define FORK(exec)				\
+do {						\
+	pid = fork();				\
+	if (pid == 0) {				\
+		/* Child */			\
+		exec; /* Some kind of exec */	\
+		perror("# " #exec);		\
+		return 1;			\
+	}					\
+	check_result(pid, #exec);		\
+} while (0)
+
+void check_result(pid_t pid, const char *msg)
+{
+	int wstatus;
+
+	if (pid == (pid_t)-1) {
+		perror("# fork");
+		ksft_test_result_fail("fork failed: %s\n", msg);
+		return;
+	}
+	if (waitpid(pid, &wstatus, 0) < 0) {
+		perror("# waitpid");
+		ksft_test_result_fail("waitpid failed: %s\n", msg);
+		return;
+	}
+	if (!WIFEXITED(wstatus)) {
+		ksft_test_result_fail("child did not exit: %s\n", msg);
+		return;
+	}
+	if (WEXITSTATUS(wstatus) != 0) {
+		ksft_test_result_fail("non-zero exit: %s\n", msg);
+		return;
+	}
+	ksft_test_result_pass("%s\n", msg);
+}
+
+int main(int argc, char *argv[], char *envp[])
+{
+	pid_t pid;
+	static char * const args[] = { NULL };
+	static char * const str[] = { "", NULL };
+
+	/* argc counting checks */
+	if (argc < 1) {
+		fprintf(stderr, "# FAIL: saw argc == 0 (old kernel?)\n");
+		return 1;
+	}
+	if (argc != 1) {
+		fprintf(stderr, "# FAIL: unknown argc (%d)\n", argc);
+		return 1;
+	}
+	if (argv[0][0] == '\0') {
+		/* Good, we found a NULL terminated string at argv[0]! */
+		return 0;
+	}
+
+	/* Test runner. */
+	ksft_print_header();
+	ksft_set_plan(5);
+
+	FORK(execve(argv[0], str, NULL));
+	FORK(execve(argv[0], NULL, NULL));
+	FORK(execve(argv[0], NULL, envp));
+	FORK(execve(argv[0], args, NULL));
+	FORK(execve(argv[0], args, envp));
+
+	ksft_exit(ksft_cnt.ksft_pass == ksft_plan);
+}
diff --git a/tools/testing/selftests/exec/recursion-depth.c b/tools/testing/selftests/exec/recursion-depth.c
new file mode 100644
index 000000000000..7b5c4f6d1928
--- /dev/null
+++ b/tools/testing/selftests/exec/recursion-depth.c
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2019 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test that pointing #! script interpreter to self doesn't recurse. */
+#include <errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/mount.h>
+#include <unistd.h>
+#include "kselftest.h"
+
+int main(void)
+{
+	int fd, rv;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	if (unshare(CLONE_NEWNS) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			ksft_test_result_skip("error: unshare, errno %d\n", errno);
+			ksft_finished();
+		}
+		ksft_exit_fail_perror("error: unshare");
+	}
+
+	if (mount(NULL, "/", NULL, MS_PRIVATE | MS_REC, NULL) == -1)
+		ksft_exit_fail_perror("error: mount '/'");
+
+	/* Require "exec" filesystem. */
+	if (mount(NULL, "/tmp", "ramfs", 0, NULL) == -1)
+		ksft_exit_fail_perror("error: mount ramfs");
+
+#define FILENAME "/tmp/1"
+
+	fd = creat(FILENAME, 0700);
+	if (fd == -1)
+		ksft_exit_fail_perror("error: creat");
+
+#define S "#!" FILENAME "\n"
+	if (write(fd, S, strlen(S)) != strlen(S))
+		ksft_exit_fail_perror("error: write");
+
+	close(fd);
+
+	rv = execve(FILENAME, NULL, NULL);
+	ksft_test_result(rv == -1 && errno == ELOOP,
+			 "execve failed as expected (ret %d, errno %d)\n", rv, errno);
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/fchmodat2/.gitignore b/tools/testing/selftests/fchmodat2/.gitignore
new file mode 100644
index 000000000000..82a4846cbc4b
--- /dev/null
+++ b/tools/testing/selftests/fchmodat2/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/*_test
diff --git a/tools/testing/selftests/fchmodat2/Makefile b/tools/testing/selftests/fchmodat2/Makefile
new file mode 100644
index 000000000000..4373cea79b79
--- /dev/null
+++ b/tools/testing/selftests/fchmodat2/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g -fsanitize=address -fsanitize=undefined $(KHDR_INCLUDES)
+
+# gcc requires -static-libasan in order to ensure that Address Sanitizer's
+# library is the first one loaded. However, clang already statically links the
+# Address Sanitizer if -fsanitize is specified. Therefore, simply omit
+# -static-libasan for clang builds.
+ifeq ($(LLVM),)
+    CFLAGS += -static-libasan
+endif
+
+TEST_GEN_PROGS := fchmodat2_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/fchmodat2/fchmodat2_test.c b/tools/testing/selftests/fchmodat2/fchmodat2_test.c
new file mode 100644
index 000000000000..e397339495f6
--- /dev/null
+++ b/tools/testing/selftests/fchmodat2/fchmodat2_test.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <syscall.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+int sys_fchmodat2(int dfd, const char *filename, mode_t mode, int flags)
+{
+	int ret = syscall(__NR_fchmodat2, dfd, filename, mode, flags);
+
+	return ret >= 0 ? ret : -errno;
+}
+
+int setup_testdir(void)
+{
+	int dfd, ret;
+	char dirname[] = "/tmp/ksft-fchmodat2.XXXXXX";
+
+	/* Make the top-level directory. */
+	if (!mkdtemp(dirname))
+		ksft_exit_fail_msg("%s: failed to create tmpdir\n", __func__);
+
+	dfd = open(dirname, O_PATH | O_DIRECTORY);
+	if (dfd < 0)
+		ksft_exit_fail_msg("%s: failed to open tmpdir\n", __func__);
+
+	ret = openat(dfd, "regfile", O_CREAT | O_WRONLY | O_TRUNC, 0644);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s: failed to create file in tmpdir\n",
+				__func__);
+	close(ret);
+
+	ret = symlinkat("regfile", dfd, "symlink");
+	if (ret < 0)
+		ksft_exit_fail_msg("%s: failed to create symlink in tmpdir\n",
+				__func__);
+
+	return dfd;
+}
+
+int expect_mode(int dfd, const char *filename, mode_t expect_mode)
+{
+	struct stat st;
+	int ret = fstatat(dfd, filename, &st, AT_SYMLINK_NOFOLLOW);
+
+	if (ret)
+		ksft_exit_fail_msg("%s: %s: fstatat failed\n",
+				__func__, filename);
+
+	return (st.st_mode == expect_mode);
+}
+
+void test_regfile(void)
+{
+	int dfd, ret;
+
+	dfd = setup_testdir();
+
+	ret = sys_fchmodat2(dfd, "regfile", 0640, 0);
+
+	if (ret < 0)
+		ksft_exit_fail_msg("%s: fchmodat2(noflag) failed\n", __func__);
+
+	if (!expect_mode(dfd, "regfile", 0100640))
+		ksft_exit_fail_msg("%s: wrong file mode bits after fchmodat2\n",
+				__func__);
+
+	ret = sys_fchmodat2(dfd, "regfile", 0600, AT_SYMLINK_NOFOLLOW);
+
+	if (ret < 0)
+		ksft_exit_fail_msg("%s: fchmodat2(AT_SYMLINK_NOFOLLOW) failed\n",
+				__func__);
+
+	if (!expect_mode(dfd, "regfile", 0100600))
+		ksft_exit_fail_msg("%s: wrong file mode bits after fchmodat2 with nofollow\n",
+				__func__);
+
+	ksft_test_result_pass("fchmodat2(regfile)\n");
+}
+
+void test_symlink(void)
+{
+	int dfd, ret;
+
+	dfd = setup_testdir();
+
+	ret = sys_fchmodat2(dfd, "symlink", 0640, 0);
+
+	if (ret < 0)
+		ksft_exit_fail_msg("%s: fchmodat2(noflag) failed\n", __func__);
+
+	if (!expect_mode(dfd, "regfile", 0100640))
+		ksft_exit_fail_msg("%s: wrong file mode bits after fchmodat2\n",
+				__func__);
+
+	if (!expect_mode(dfd, "symlink", 0120777))
+		ksft_exit_fail_msg("%s: wrong symlink mode bits after fchmodat2\n",
+				__func__);
+
+	ret = sys_fchmodat2(dfd, "symlink", 0600, AT_SYMLINK_NOFOLLOW);
+
+	/*
+	 * On certain filesystems (xfs or btrfs), chmod operation fails. So we
+	 * first check the symlink target but if the operation fails we mark the
+	 * test as skipped.
+	 *
+	 * https://sourceware.org/legacy-ml/libc-alpha/2020-02/msg00467.html
+	 */
+	if (ret == 0 && !expect_mode(dfd, "symlink", 0120600))
+		ksft_exit_fail_msg("%s: wrong symlink mode bits after fchmodat2 with nofollow\n",
+				__func__);
+
+	if (!expect_mode(dfd, "regfile", 0100640))
+		ksft_exit_fail_msg("%s: wrong file mode bits after fchmodat2 with nofollow\n",
+				__func__);
+
+	if (ret != 0)
+		ksft_test_result_skip("fchmodat2(symlink)\n");
+	else
+		ksft_test_result_pass("fchmodat2(symlink)\n");
+}
+
+#define NUM_TESTS 2
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(NUM_TESTS);
+
+	test_regfile();
+	test_symlink();
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/filelock/Makefile b/tools/testing/selftests/filelock/Makefile
new file mode 100644
index 000000000000..478e82f8b464
--- /dev/null
+++ b/tools/testing/selftests/filelock/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_PROGS := ofdlocks
+
+include ../lib.mk
diff --git a/tools/testing/selftests/filelock/ofdlocks.c b/tools/testing/selftests/filelock/ofdlocks.c
new file mode 100644
index 000000000000..ff8d47fc373a
--- /dev/null
+++ b/tools/testing/selftests/filelock/ofdlocks.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <assert.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include "kselftest.h"
+
+static int lock_set(int fd, struct flock *fl)
+{
+	int ret;
+
+	fl->l_pid = 0;		// needed for OFD locks
+	fl->l_whence = SEEK_SET;
+	ret = fcntl(fd, F_OFD_SETLK, fl);
+	if (ret)
+		perror("fcntl()");
+	return ret;
+}
+
+static int lock_get(int fd, struct flock *fl)
+{
+	int ret;
+
+	fl->l_pid = 0;		// needed for OFD locks
+	fl->l_whence = SEEK_SET;
+	ret = fcntl(fd, F_OFD_GETLK, fl);
+	if (ret)
+		perror("fcntl()");
+	return ret;
+}
+
+int main(void)
+{
+	int rc;
+	struct flock fl, fl2;
+	int fd = open("/tmp/aa", O_RDWR | O_CREAT | O_EXCL, 0600);
+	int fd2 = open("/tmp/aa", O_RDONLY);
+
+	unlink("/tmp/aa");
+	assert(fd != -1);
+	assert(fd2 != -1);
+	ksft_print_msg("[INFO] opened fds %i %i\n", fd, fd2);
+
+	/* Set some read lock */
+	fl.l_type = F_RDLCK;
+	fl.l_start = 5;
+	fl.l_len = 3;
+	rc = lock_set(fd, &fl);
+	if (rc == 0) {
+		ksft_print_msg
+		    ("[SUCCESS] set OFD read lock on first fd\n");
+	} else {
+		ksft_print_msg("[FAIL] to set OFD read lock on first fd\n");
+		return -1;
+	}
+	/* Make sure read locks do not conflict on different fds. */
+	fl.l_type = F_RDLCK;
+	fl.l_start = 5;
+	fl.l_len = 1;
+	rc = lock_get(fd2, &fl);
+	if (rc != 0)
+		return -1;
+	if (fl.l_type != F_UNLCK) {
+		ksft_print_msg("[FAIL] read locks conflicted\n");
+		return -1;
+	}
+	/* Make sure read/write locks do conflict on different fds. */
+	fl.l_type = F_WRLCK;
+	fl.l_start = 5;
+	fl.l_len = 1;
+	rc = lock_get(fd2, &fl);
+	if (rc != 0)
+		return -1;
+	if (fl.l_type != F_UNLCK) {
+		ksft_print_msg
+		    ("[SUCCESS] read and write locks conflicted\n");
+	} else {
+		ksft_print_msg
+		    ("[SUCCESS] read and write locks not conflicted\n");
+		return -1;
+	}
+	/* Get info about the lock on first fd. */
+	fl.l_type = F_UNLCK;
+	fl.l_start = 5;
+	fl.l_len = 1;
+	rc = lock_get(fd, &fl);
+	if (rc != 0) {
+		ksft_print_msg
+		    ("[FAIL] F_OFD_GETLK with F_UNLCK not supported\n");
+		return -1;
+	}
+	if (fl.l_type != F_UNLCK) {
+		ksft_print_msg
+		    ("[SUCCESS] F_UNLCK test returns: locked, type %i pid %i len %zi\n",
+		     fl.l_type, fl.l_pid, fl.l_len);
+	} else {
+		ksft_print_msg
+		    ("[FAIL] F_OFD_GETLK with F_UNLCK did not return lock info\n");
+		return -1;
+	}
+	/* Try the same but by locking everything by len==0. */
+	fl2.l_type = F_UNLCK;
+	fl2.l_start = 0;
+	fl2.l_len = 0;
+	rc = lock_get(fd, &fl2);
+	if (rc != 0) {
+		ksft_print_msg
+		    ("[FAIL] F_OFD_GETLK with F_UNLCK not supported\n");
+		return -1;
+	}
+	if (memcmp(&fl, &fl2, sizeof(fl))) {
+		ksft_print_msg
+		    ("[FAIL] F_UNLCK test returns: locked, type %i pid %i len %zi\n",
+		     fl.l_type, fl.l_pid, fl.l_len);
+		return -1;
+	}
+	ksft_print_msg("[SUCCESS] F_UNLCK with len==0 returned the same\n");
+	/* Get info about the lock on second fd - no locks on it. */
+	fl.l_type = F_UNLCK;
+	fl.l_start = 0;
+	fl.l_len = 0;
+	lock_get(fd2, &fl);
+	if (fl.l_type != F_UNLCK) {
+		ksft_print_msg
+		    ("[FAIL] F_OFD_GETLK with F_UNLCK return lock info from another fd\n");
+		return -1;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/filesystems/.gitignore b/tools/testing/selftests/filesystems/.gitignore
new file mode 100644
index 000000000000..64ac0dfa46b7
--- /dev/null
+++ b/tools/testing/selftests/filesystems/.gitignore
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+dnotify_test
+devpts_pts
+fclog
+file_stressor
+anon_inode_test
+kernfs_test
diff --git a/tools/testing/selftests/filesystems/Makefile b/tools/testing/selftests/filesystems/Makefile
new file mode 100644
index 000000000000..85427d7f19b9
--- /dev/null
+++ b/tools/testing/selftests/filesystems/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += $(KHDR_INCLUDES)
+TEST_GEN_PROGS := devpts_pts file_stressor anon_inode_test kernfs_test fclog
+TEST_GEN_PROGS_EXTENDED := dnotify_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/filesystems/anon_inode_test.c b/tools/testing/selftests/filesystems/anon_inode_test.c
new file mode 100644
index 000000000000..94c6c81c2301
--- /dev/null
+++ b/tools/testing/selftests/filesystems/anon_inode_test.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
+
+#include "kselftest_harness.h"
+#include "wrappers.h"
+
+TEST(anon_inode_no_chown)
+{
+	int fd_context;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_LT(fchown(fd_context, 1234, 5678), 0);
+	ASSERT_EQ(errno, EOPNOTSUPP);
+
+	EXPECT_EQ(close(fd_context), 0);
+}
+
+TEST(anon_inode_no_chmod)
+{
+	int fd_context;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_LT(fchmod(fd_context, 0777), 0);
+	ASSERT_EQ(errno, EOPNOTSUPP);
+
+	EXPECT_EQ(close(fd_context), 0);
+}
+
+TEST(anon_inode_no_exec)
+{
+	int fd_context;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_LT(execveat(fd_context, "", NULL, NULL, AT_EMPTY_PATH), 0);
+	ASSERT_EQ(errno, EACCES);
+
+	EXPECT_EQ(close(fd_context), 0);
+}
+
+TEST(anon_inode_no_open)
+{
+	int fd_context;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_GE(dup2(fd_context, 500), 0);
+	ASSERT_EQ(close(fd_context), 0);
+	fd_context = 500;
+
+	ASSERT_LT(open("/proc/self/fd/500", 0), 0);
+	ASSERT_EQ(errno, ENXIO);
+
+	EXPECT_EQ(close(fd_context), 0);
+}
+
+TEST_HARNESS_MAIN
+
diff --git a/tools/testing/selftests/filesystems/binderfs/.gitignore b/tools/testing/selftests/filesystems/binderfs/.gitignore
new file mode 100644
index 000000000000..8e5cf9084894
--- /dev/null
+++ b/tools/testing/selftests/filesystems/binderfs/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+binderfs_test
diff --git a/tools/testing/selftests/filesystems/binderfs/Makefile b/tools/testing/selftests/filesystems/binderfs/Makefile
new file mode 100644
index 000000000000..eb4c3b411934
--- /dev/null
+++ b/tools/testing/selftests/filesystems/binderfs/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += $(KHDR_INCLUDES) -pthread
+TEST_GEN_PROGS := binderfs_test
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/binderfs/binderfs_test.c b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
new file mode 100644
index 000000000000..a1a79a6fef17
--- /dev/null
+++ b/tools/testing/selftests/filesystems/binderfs/binderfs_test.c
@@ -0,0 +1,541 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/fsuid.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysinfo.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/android/binder.h>
+#include <linux/android/binderfs.h>
+
+#include "kselftest_harness.h"
+
+#define DEFAULT_THREADS 4
+
+#define PTR_TO_INT(p) ((int)((intptr_t)(p)))
+#define INT_TO_PTR(u) ((void *)((intptr_t)(u)))
+
+#define close_prot_errno_disarm(fd) \
+	if (fd >= 0) {              \
+		int _e_ = errno;    \
+		close(fd);          \
+		errno = _e_;        \
+		fd = -EBADF;        \
+	}
+
+static void change_mountns(struct __test_metadata *_metadata)
+{
+	int ret;
+
+	ret = unshare(CLONE_NEWNS);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to unshare mount namespace",
+			strerror(errno));
+	}
+
+	ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to mount / as private",
+			strerror(errno));
+	}
+}
+
+static int __do_binderfs_test(struct __test_metadata *_metadata)
+{
+	int fd, ret, saved_errno, result = 1;
+	size_t len;
+	struct binderfs_device device = { 0 };
+	struct binder_version version = { 0 };
+	char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
+		device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+	static const char * const binder_features[] = {
+		"oneway_spam_detection",
+		"extended_error",
+		"freeze_notification",
+		"transaction_report",
+	};
+
+	change_mountns(_metadata);
+
+	EXPECT_NE(mkdtemp(binderfs_mntpt), NULL) {
+		TH_LOG("%s - Failed to create binderfs mountpoint",
+			strerror(errno));
+		goto out;
+	}
+
+	ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
+	EXPECT_EQ(ret, 0) {
+		if (errno == ENODEV)
+			SKIP(goto out, "binderfs missing");
+		TH_LOG("%s - Failed to mount binderfs", strerror(errno));
+		goto rmdir;
+	}
+
+	/* success: binderfs mounted */
+
+	memcpy(device.name, "my-binder", strlen("my-binder"));
+
+	snprintf(device_path, sizeof(device_path), "%s/binder-control", binderfs_mntpt);
+	fd = open(device_path, O_RDONLY | O_CLOEXEC);
+	EXPECT_GE(fd, 0) {
+		TH_LOG("%s - Failed to open binder-control device",
+			strerror(errno));
+		goto umount;
+	}
+
+	ret = ioctl(fd, BINDER_CTL_ADD, &device);
+	saved_errno = errno;
+	close(fd);
+	errno = saved_errno;
+	EXPECT_GE(ret, 0) {
+		TH_LOG("%s - Failed to allocate new binder device",
+			strerror(errno));
+		goto umount;
+	}
+
+	TH_LOG("Allocated new binder device with major %d, minor %d, and name %s",
+		device.major, device.minor, device.name);
+
+	/* success: binder device allocation */
+
+	snprintf(device_path, sizeof(device_path), "%s/my-binder", binderfs_mntpt);
+	fd = open(device_path, O_CLOEXEC | O_RDONLY);
+	EXPECT_GE(fd, 0) {
+		TH_LOG("%s - Failed to open my-binder device",
+			strerror(errno));
+		goto umount;
+	}
+
+	ret = ioctl(fd, BINDER_VERSION, &version);
+	saved_errno = errno;
+	close(fd);
+	errno = saved_errno;
+	EXPECT_GE(ret, 0) {
+		TH_LOG("%s - Failed to open perform BINDER_VERSION request",
+			strerror(errno));
+		goto umount;
+	}
+
+	TH_LOG("Detected binder version: %d", version.protocol_version);
+
+	/* success: binder transaction with binderfs binder device */
+
+	ret = unlink(device_path);
+	EXPECT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to delete binder device",
+			strerror(errno));
+		goto umount;
+	}
+
+	/* success: binder device removal */
+
+	snprintf(device_path, sizeof(device_path), "%s/binder-control", binderfs_mntpt);
+	ret = unlink(device_path);
+	EXPECT_NE(ret, 0) {
+		TH_LOG("Managed to delete binder-control device");
+		goto umount;
+	}
+	EXPECT_EQ(errno, EPERM) {
+		TH_LOG("%s - Failed to delete binder-control device but exited with unexpected error code",
+			strerror(errno));
+		goto umount;
+	}
+
+	/* success: binder-control device removal failed as expected */
+
+	for (int i = 0; i < ARRAY_SIZE(binder_features); i++) {
+		snprintf(device_path, sizeof(device_path), "%s/features/%s",
+			 binderfs_mntpt, binder_features[i]);
+		fd = open(device_path, O_CLOEXEC | O_RDONLY);
+		EXPECT_GE(fd, 0) {
+			TH_LOG("%s - Failed to open binder feature: %s",
+				strerror(errno), binder_features[i]);
+			goto umount;
+		}
+		close(fd);
+	}
+
+	/* success: binder feature files found */
+	result = 0;
+
+umount:
+	ret = umount2(binderfs_mntpt, MNT_DETACH);
+	EXPECT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to unmount binderfs", strerror(errno));
+	}
+rmdir:
+	ret = rmdir(binderfs_mntpt);
+	EXPECT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to rmdir binderfs mount", strerror(errno));
+	}
+out:
+	return result;
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static int setid_userns_root(void)
+{
+	if (setuid(0))
+		return -1;
+	if (setgid(0))
+		return -1;
+
+	setfsuid(0);
+	setfsgid(0);
+
+	return 0;
+}
+
+enum idmap_type {
+	UID_MAP,
+	GID_MAP,
+};
+
+static ssize_t read_nointr(int fd, void *buf, size_t count)
+{
+	ssize_t ret;
+again:
+	ret = read(fd, buf, count);
+	if (ret < 0 && errno == EINTR)
+		goto again;
+
+	return ret;
+}
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+again:
+	ret = write(fd, buf, count);
+	if (ret < 0 && errno == EINTR)
+		goto again;
+
+	return ret;
+}
+
+static int write_id_mapping(enum idmap_type type, pid_t pid, const char *buf,
+			    size_t buf_size)
+{
+	int fd;
+	int ret;
+	char path[4096];
+
+	if (type == GID_MAP) {
+		int setgroups_fd;
+
+		snprintf(path, sizeof(path), "/proc/%d/setgroups", pid);
+		setgroups_fd = open(path, O_WRONLY | O_CLOEXEC | O_NOFOLLOW);
+		if (setgroups_fd < 0 && errno != ENOENT)
+			return -1;
+
+		if (setgroups_fd >= 0) {
+			ret = write_nointr(setgroups_fd, "deny", sizeof("deny") - 1);
+			close_prot_errno_disarm(setgroups_fd);
+			if (ret != sizeof("deny") - 1)
+				return -1;
+		}
+	}
+
+	switch (type) {
+	case UID_MAP:
+		ret = snprintf(path, sizeof(path), "/proc/%d/uid_map", pid);
+		break;
+	case GID_MAP:
+		ret = snprintf(path, sizeof(path), "/proc/%d/gid_map", pid);
+		break;
+	default:
+		return -1;
+	}
+	if (ret < 0 || ret >= sizeof(path))
+		return -E2BIG;
+
+	fd = open(path, O_WRONLY | O_CLOEXEC | O_NOFOLLOW);
+	if (fd < 0)
+		return -1;
+
+	ret = write_nointr(fd, buf, buf_size);
+	close_prot_errno_disarm(fd);
+	if (ret != buf_size)
+		return -1;
+
+	return 0;
+}
+
+static void change_userns(struct __test_metadata *_metadata, int syncfds[2])
+{
+	int ret;
+	char buf;
+
+	close_prot_errno_disarm(syncfds[1]);
+
+	ret = unshare(CLONE_NEWUSER);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to unshare user namespace",
+			strerror(errno));
+	}
+
+	ret = write_nointr(syncfds[0], "1", 1);
+	ASSERT_EQ(ret, 1) {
+		TH_LOG("write_nointr() failed");
+	}
+
+	ret = read_nointr(syncfds[0], &buf, 1);
+	ASSERT_EQ(ret, 1) {
+		TH_LOG("read_nointr() failed");
+	}
+
+	close_prot_errno_disarm(syncfds[0]);
+
+	ASSERT_EQ(setid_userns_root(), 0) {
+		TH_LOG("setid_userns_root() failed");
+	}
+}
+
+static void change_idmaps(struct __test_metadata *_metadata, int syncfds[2], pid_t pid)
+{
+	int ret;
+	char buf;
+	char id_map[4096];
+
+	close_prot_errno_disarm(syncfds[0]);
+
+	ret = read_nointr(syncfds[1], &buf, 1);
+	ASSERT_EQ(ret, 1) {
+		TH_LOG("read_nointr() failed");
+	}
+
+	snprintf(id_map, sizeof(id_map), "0 %d 1\n", getuid());
+	ret = write_id_mapping(UID_MAP, pid, id_map, strlen(id_map));
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("write_id_mapping(UID_MAP) failed");
+	}
+
+	snprintf(id_map, sizeof(id_map), "0 %d 1\n", getgid());
+	ret = write_id_mapping(GID_MAP, pid, id_map, strlen(id_map));
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("write_id_mapping(GID_MAP) failed");
+	}
+
+	ret = write_nointr(syncfds[1], "1", 1);
+	ASSERT_EQ(ret, 1) {
+		TH_LOG("write_nointr() failed");
+	}
+
+	close_prot_errno_disarm(syncfds[1]);
+}
+
+struct __test_metadata *_thread_metadata;
+static void *binder_version_thread(void *data)
+{
+	struct __test_metadata *_metadata = _thread_metadata;
+	int fd = PTR_TO_INT(data);
+	struct binder_version version = { 0 };
+	int ret;
+
+	ret = ioctl(fd, BINDER_VERSION, &version);
+	if (ret < 0)
+		TH_LOG("%s - Failed to open perform BINDER_VERSION request\n",
+			strerror(errno));
+
+	pthread_exit(data);
+}
+
+/*
+ * Regression test:
+ * 2669b8b0c798 ("binder: prevent UAF for binderfs devices")
+ * f0fe2c0f050d ("binder: prevent UAF for binderfs devices II")
+ * 211b64e4b5b6 ("binderfs: use refcount for binder control devices too")
+ */
+TEST(binderfs_stress)
+{
+	int fds[1000];
+	int syncfds[2];
+	pid_t pid;
+	int fd, ret;
+	size_t len;
+	struct binderfs_device device = { 0 };
+	char binderfs_mntpt[] = P_tmpdir "/binderfs_XXXXXX",
+		device_path[sizeof(P_tmpdir "/binderfs_XXXXXX/") + BINDERFS_MAX_NAME];
+
+	ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to create socket pair", strerror(errno));
+	}
+
+	pid = fork();
+	ASSERT_GE(pid, 0) {
+		TH_LOG("%s - Failed to fork", strerror(errno));
+		close_prot_errno_disarm(syncfds[0]);
+		close_prot_errno_disarm(syncfds[1]);
+	}
+
+	if (pid == 0) {
+		int i, j, k, nthreads;
+		pthread_attr_t attr;
+		pthread_t threads[DEFAULT_THREADS];
+		change_userns(_metadata, syncfds);
+		change_mountns(_metadata);
+
+		ASSERT_NE(mkdtemp(binderfs_mntpt), NULL) {
+			TH_LOG("%s - Failed to create binderfs mountpoint",
+				strerror(errno));
+		}
+
+		ret = mount(NULL, binderfs_mntpt, "binder", 0, 0);
+		ASSERT_EQ(ret, 0) {
+			TH_LOG("%s - Failed to mount binderfs, check if CONFIG_ANDROID_BINDERFS is enabled in the running kernel",
+				strerror(errno));
+		}
+
+		for (int i = 0; i < ARRAY_SIZE(fds); i++) {
+
+			snprintf(device_path, sizeof(device_path),
+				 "%s/binder-control", binderfs_mntpt);
+			fd = open(device_path, O_RDONLY | O_CLOEXEC);
+			ASSERT_GE(fd, 0) {
+				TH_LOG("%s - Failed to open binder-control device",
+					strerror(errno));
+			}
+
+			memset(&device, 0, sizeof(device));
+			snprintf(device.name, sizeof(device.name), "%d", i);
+			ret = ioctl(fd, BINDER_CTL_ADD, &device);
+			close_prot_errno_disarm(fd);
+			ASSERT_EQ(ret, 0) {
+				TH_LOG("%s - Failed to allocate new binder device",
+					strerror(errno));
+			}
+
+			snprintf(device_path, sizeof(device_path), "%s/%d",
+				 binderfs_mntpt, i);
+			fds[i] = open(device_path, O_RDONLY | O_CLOEXEC);
+			ASSERT_GE(fds[i], 0) {
+				TH_LOG("%s - Failed to open binder device", strerror(errno));
+			}
+		}
+
+		ret = umount2(binderfs_mntpt, MNT_DETACH);
+		ASSERT_EQ(ret, 0) {
+			TH_LOG("%s - Failed to unmount binderfs", strerror(errno));
+			rmdir(binderfs_mntpt);
+		}
+
+		nthreads = get_nprocs_conf();
+		if (nthreads > DEFAULT_THREADS)
+			nthreads = DEFAULT_THREADS;
+
+		_thread_metadata = _metadata;
+		pthread_attr_init(&attr);
+		for (k = 0; k < ARRAY_SIZE(fds); k++) {
+			for (i = 0; i < nthreads; i++) {
+				ret = pthread_create(&threads[i], &attr, binder_version_thread, INT_TO_PTR(fds[k]));
+				if (ret) {
+					TH_LOG("%s - Failed to create thread %d",
+						strerror(errno), i);
+					break;
+				}
+			}
+
+			for (j = 0; j < i; j++) {
+				void *fdptr = NULL;
+
+				ret = pthread_join(threads[j], &fdptr);
+				if (ret)
+					TH_LOG("%s - Failed to join thread %d for fd %d",
+						strerror(errno), j, PTR_TO_INT(fdptr));
+			}
+		}
+		pthread_attr_destroy(&attr);
+
+		for (k = 0; k < ARRAY_SIZE(fds); k++)
+			close(fds[k]);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	change_idmaps(_metadata, syncfds, pid);
+
+	ret = wait_for_pid(pid);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("wait_for_pid() failed");
+	}
+}
+
+TEST(binderfs_test_privileged)
+{
+	if (geteuid() != 0)
+		SKIP(return, "Tests are not run as root. Skipping privileged tests");
+
+	if (__do_binderfs_test(_metadata))
+		SKIP(return, "The Android binderfs filesystem is not available");
+}
+
+TEST(binderfs_test_unprivileged)
+{
+	int ret;
+	int syncfds[2];
+	pid_t pid;
+
+	ret = socketpair(PF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, syncfds);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("%s - Failed to create socket pair", strerror(errno));
+	}
+
+	pid = fork();
+	ASSERT_GE(pid, 0) {
+		close_prot_errno_disarm(syncfds[0]);
+		close_prot_errno_disarm(syncfds[1]);
+		TH_LOG("%s - Failed to fork", strerror(errno));
+	}
+
+	if (pid == 0) {
+		change_userns(_metadata, syncfds);
+		if (__do_binderfs_test(_metadata))
+			exit(2);
+		exit(EXIT_SUCCESS);
+	}
+
+	change_idmaps(_metadata, syncfds, pid);
+
+	ret = wait_for_pid(pid);
+	if (ret) {
+		if (ret == 2)
+			SKIP(return, "The Android binderfs filesystem is not available");
+		ASSERT_EQ(ret, 0) {
+			TH_LOG("wait_for_pid() failed");
+		}
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/binderfs/config b/tools/testing/selftests/filesystems/binderfs/config
new file mode 100644
index 000000000000..7b4fc6ee6205
--- /dev/null
+++ b/tools/testing/selftests/filesystems/binderfs/config
@@ -0,0 +1,2 @@
+CONFIG_ANDROID_BINDERFS=y
+CONFIG_ANDROID_BINDER_IPC=y
diff --git a/tools/testing/selftests/filesystems/devpts_pts.c b/tools/testing/selftests/filesystems/devpts_pts.c
new file mode 100644
index 000000000000..54fea349204e
--- /dev/null
+++ b/tools/testing/selftests/filesystems/devpts_pts.c
@@ -0,0 +1,316 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <asm/ioctls.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include "kselftest.h"
+
+static bool terminal_dup2(int duplicate, int original)
+{
+	int ret;
+
+	ret = dup2(duplicate, original);
+	if (ret < 0)
+		return false;
+
+	return true;
+}
+
+static int terminal_set_stdfds(int fd)
+{
+	int i;
+
+	if (fd < 0)
+		return 0;
+
+	for (i = 0; i < 3; i++)
+		if (!terminal_dup2(fd, (int[]){STDIN_FILENO, STDOUT_FILENO,
+					       STDERR_FILENO}[i]))
+			return -1;
+
+	return 0;
+}
+
+static int login_pty(int fd)
+{
+	int ret;
+
+	setsid();
+
+	ret = ioctl(fd, TIOCSCTTY, NULL);
+	if (ret < 0)
+		return -1;
+
+	ret = terminal_set_stdfds(fd);
+	if (ret < 0)
+		return -1;
+
+	if (fd > STDERR_FILENO)
+		close(fd);
+
+	return 0;
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+		return -1;
+	}
+	if (ret != pid)
+		goto again;
+
+	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0)
+		return -1;
+
+	return 0;
+}
+
+static int resolve_procfd_symlink(int fd, char *buf, size_t buflen)
+{
+	int ret;
+	char procfd[4096];
+
+	ret = snprintf(procfd, 4096, "/proc/self/fd/%d", fd);
+	if (ret < 0 || ret >= 4096)
+		return -1;
+
+	ret = readlink(procfd, buf, buflen);
+	if (ret < 0 || (size_t)ret >= buflen)
+		return -1;
+
+	buf[ret] = '\0';
+
+	return 0;
+}
+
+static int do_tiocgptpeer(char *ptmx, char *expected_procfd_contents)
+{
+	int ret;
+	int master = -1, slave = -1, fret = -1;
+
+	master = open(ptmx, O_RDWR | O_NOCTTY | O_CLOEXEC);
+	if (master < 0) {
+		fprintf(stderr, "Failed to open \"%s\": %s\n", ptmx,
+			strerror(errno));
+		return -1;
+	}
+
+	/*
+	 * grantpt() makes assumptions about /dev/pts/ so ignore it. It's also
+	 * not really needed.
+	 */
+	ret = unlockpt(master);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to unlock terminal\n");
+		goto do_cleanup;
+	}
+
+#ifdef TIOCGPTPEER
+	slave = ioctl(master, TIOCGPTPEER, O_RDWR | O_NOCTTY | O_CLOEXEC);
+#endif
+	if (slave < 0) {
+		if (errno == EINVAL) {
+			fprintf(stderr, "TIOCGPTPEER is not supported. "
+					"Skipping test.\n");
+			fret = KSFT_SKIP;
+		} else {
+			fprintf(stderr,
+				"Failed to perform TIOCGPTPEER ioctl\n");
+			fret = EXIT_FAILURE;
+		}
+		goto do_cleanup;
+	}
+
+	pid_t pid = fork();
+	if (pid < 0)
+		goto do_cleanup;
+
+	if (pid == 0) {
+		char buf[4096];
+
+		ret = login_pty(slave);
+		if (ret < 0) {
+			fprintf(stderr, "Failed to setup terminal\n");
+			_exit(EXIT_FAILURE);
+		}
+
+		ret = resolve_procfd_symlink(STDIN_FILENO, buf, sizeof(buf));
+		if (ret < 0) {
+			fprintf(stderr, "Failed to retrieve pathname of pts "
+					"slave file descriptor\n");
+			_exit(EXIT_FAILURE);
+		}
+
+		if (strncmp(expected_procfd_contents, buf,
+			    strlen(expected_procfd_contents)) != 0) {
+			fprintf(stderr, "Received invalid contents for "
+					"\"/proc/<pid>/fd/%d\" symlink: %s\n",
+					STDIN_FILENO, buf);
+			_exit(-1);
+		}
+
+		fprintf(stderr, "Contents of \"/proc/<pid>/fd/%d\" "
+				"symlink are valid: %s\n", STDIN_FILENO, buf);
+
+		_exit(EXIT_SUCCESS);
+	}
+
+	ret = wait_for_pid(pid);
+	if (ret < 0)
+		goto do_cleanup;
+
+	fret = EXIT_SUCCESS;
+
+do_cleanup:
+	if (master >= 0)
+		close(master);
+	if (slave >= 0)
+		close(slave);
+
+	return fret;
+}
+
+static int verify_non_standard_devpts_mount(void)
+{
+	char *mntpoint;
+	int ret = -1;
+	char devpts[] = P_tmpdir "/devpts_fs_XXXXXX";
+	char ptmx[] = P_tmpdir "/devpts_fs_XXXXXX/ptmx";
+
+	ret = umount("/dev/pts");
+	if (ret < 0) {
+		fprintf(stderr, "Failed to unmount \"/dev/pts\": %s\n",
+				strerror(errno));
+		return -1;
+	}
+
+	(void)umount("/dev/ptmx");
+
+	mntpoint = mkdtemp(devpts);
+	if (!mntpoint) {
+		fprintf(stderr, "Failed to create temporary mountpoint: %s\n",
+				 strerror(errno));
+		return -1;
+	}
+
+	ret = mount("devpts", mntpoint, "devpts", MS_NOSUID | MS_NOEXEC,
+		    "newinstance,ptmxmode=0666,mode=0620,gid=5");
+	if (ret < 0) {
+		fprintf(stderr, "Failed to mount devpts fs to \"%s\" in new "
+				"mount namespace: %s\n", mntpoint,
+				strerror(errno));
+		unlink(mntpoint);
+		return -1;
+	}
+
+	ret = snprintf(ptmx, sizeof(ptmx), "%s/ptmx", devpts);
+	if (ret < 0 || (size_t)ret >= sizeof(ptmx)) {
+		unlink(mntpoint);
+		return -1;
+	}
+
+	ret = do_tiocgptpeer(ptmx, mntpoint);
+	unlink(mntpoint);
+	if (ret < 0)
+		return -1;
+
+	return 0;
+}
+
+static int verify_ptmx_bind_mount(void)
+{
+	int ret;
+
+	ret = mount("/dev/pts/ptmx", "/dev/ptmx", NULL, MS_BIND, NULL);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to bind mount \"/dev/pts/ptmx\" to "
+				"\"/dev/ptmx\" mount namespace\n");
+		return -1;
+	}
+
+	ret = do_tiocgptpeer("/dev/ptmx", "/dev/pts/");
+	if (ret < 0)
+		return -1;
+
+	return 0;
+}
+
+static int verify_invalid_ptmx_bind_mount(void)
+{
+	int ret;
+	char mntpoint_fd;
+	char ptmx[] = P_tmpdir "/devpts_ptmx_XXXXXX";
+
+	mntpoint_fd = mkstemp(ptmx);
+	if (mntpoint_fd < 0) {
+		fprintf(stderr, "Failed to create temporary directory: %s\n",
+				 strerror(errno));
+		return -1;
+	}
+
+	ret = mount("/dev/pts/ptmx", ptmx, NULL, MS_BIND, NULL);
+	close(mntpoint_fd);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to bind mount \"/dev/pts/ptmx\" to "
+				"\"%s\" mount namespace\n", ptmx);
+		return -1;
+	}
+
+	ret = do_tiocgptpeer(ptmx, "/dev/pts/");
+	if (ret == 0)
+		return -1;
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int ret;
+
+	if (!isatty(STDIN_FILENO)) {
+		fprintf(stderr, "Standard input file descriptor is not attached "
+				"to a terminal. Skipping test\n");
+		exit(KSFT_SKIP);
+	}
+
+	ret = unshare(CLONE_NEWNS);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to unshare mount namespace\n");
+		exit(EXIT_FAILURE);
+	}
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret < 0) {
+		fprintf(stderr, "Failed to make \"/\" MS_PRIVATE in new mount "
+				"namespace\n");
+		exit(EXIT_FAILURE);
+	}
+
+	ret = verify_ptmx_bind_mount();
+	if (ret < 0)
+		exit(EXIT_FAILURE);
+
+	ret = verify_invalid_ptmx_bind_mount();
+	if (ret < 0)
+		exit(EXIT_FAILURE);
+
+	ret = verify_non_standard_devpts_mount();
+	if (ret < 0)
+		exit(EXIT_FAILURE);
+
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/testing/selftests/filesystems/dnotify_test.c b/tools/testing/selftests/filesystems/dnotify_test.c
new file mode 100644
index 000000000000..c0a9b2d3302d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/dnotify_test.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE	/* needed to get the defines */
+#include <fcntl.h>	/* in glibc 2.2 this has the needed
+				   values defined */
+#include <signal.h>
+#include <stdio.h>
+#include <unistd.h>
+
+static volatile int event_fd;
+
+static void handler(int sig, siginfo_t *si, void *data)
+{
+	event_fd = si->si_fd;
+}
+
+int main(void)
+{
+	struct sigaction act;
+	int fd;
+
+	act.sa_sigaction = handler;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	sigaction(SIGRTMIN + 1, &act, NULL);
+
+	fd = open(".", O_RDONLY);
+	fcntl(fd, F_SETSIG, SIGRTMIN + 1);
+	fcntl(fd, F_NOTIFY, DN_MODIFY|DN_CREATE|DN_MULTISHOT);
+	/* we will now be notified if any of the files
+	   in "." is modified or new files are created */
+	while (1) {
+		pause();
+		printf("Got event on fd=%d\n", event_fd);
+	}
+}
diff --git a/tools/testing/selftests/filesystems/epoll/.gitignore b/tools/testing/selftests/filesystems/epoll/.gitignore
new file mode 100644
index 000000000000..9090157258b1
--- /dev/null
+++ b/tools/testing/selftests/filesystems/epoll/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+epoll_wakeup_test
diff --git a/tools/testing/selftests/filesystems/epoll/Makefile b/tools/testing/selftests/filesystems/epoll/Makefile
new file mode 100644
index 000000000000..0788a7dc8004
--- /dev/null
+++ b/tools/testing/selftests/filesystems/epoll/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += $(KHDR_INCLUDES)
+LDLIBS += -lpthread
+TEST_GEN_PROGS := epoll_wakeup_test
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
new file mode 100644
index 000000000000..8bc57a2ef966
--- /dev/null
+++ b/tools/testing/selftests/filesystems/epoll/epoll_wakeup_test.c
@@ -0,0 +1,3496 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <asm/unistd.h>
+#include <linux/time_types.h>
+#include <poll.h>
+#include <unistd.h>
+#include <assert.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/epoll.h>
+#include <sys/socket.h>
+#include <sys/eventfd.h>
+#include "kselftest_harness.h"
+
+struct epoll_mtcontext
+{
+	int efd[3];
+	int sfd[4];
+	volatile int count;
+
+	pthread_t main;
+	pthread_t waiter;
+};
+
+#ifndef __NR_epoll_pwait2
+#define __NR_epoll_pwait2 -1
+#endif
+
+static inline int sys_epoll_pwait2(int fd, struct epoll_event *events,
+				   int maxevents,
+				   const struct __kernel_timespec *timeout,
+				   const sigset_t *sigset, size_t sigsetsize)
+{
+	return syscall(__NR_epoll_pwait2, fd, events, maxevents, timeout,
+		       sigset, sigsetsize);
+}
+
+static void signal_handler(int signum)
+{
+}
+
+static void kill_timeout(struct epoll_mtcontext *ctx)
+{
+	usleep(1000000);
+	pthread_kill(ctx->main, SIGUSR1);
+	pthread_kill(ctx->waiter, SIGUSR1);
+}
+
+static void *waiter_entry1a(void *data)
+{
+	struct epoll_event e;
+	struct epoll_mtcontext *ctx = data;
+
+	if (epoll_wait(ctx->efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx->count, 1);
+
+	return NULL;
+}
+
+static void *waiter_entry1ap(void *data)
+{
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext *ctx = data;
+
+	pfd.fd = ctx->efd[0];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx->efd[0], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx->count, 1);
+	}
+
+	return NULL;
+}
+
+static void *waiter_entry1o(void *data)
+{
+	struct epoll_event e;
+	struct epoll_mtcontext *ctx = data;
+
+	if (epoll_wait(ctx->efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx->count, 1);
+
+	return NULL;
+}
+
+static void *waiter_entry1op(void *data)
+{
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext *ctx = data;
+
+	pfd.fd = ctx->efd[0];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx->efd[0], &e, 1, 0) > 0)
+			__sync_fetch_and_or(&ctx->count, 1);
+	}
+
+	return NULL;
+}
+
+static void *waiter_entry2a(void *data)
+{
+	struct epoll_event events[2];
+	struct epoll_mtcontext *ctx = data;
+
+	if (epoll_wait(ctx->efd[0], events, 2, -1) > 0)
+		__sync_fetch_and_add(&ctx->count, 1);
+
+	return NULL;
+}
+
+static void *waiter_entry2ap(void *data)
+{
+	struct pollfd pfd;
+	struct epoll_event events[2];
+	struct epoll_mtcontext *ctx = data;
+
+	pfd.fd = ctx->efd[0];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx->efd[0], events, 2, 0) > 0)
+			__sync_fetch_and_add(&ctx->count, 1);
+	}
+
+	return NULL;
+}
+
+static void *emitter_entry1(void *data)
+{
+	struct epoll_mtcontext *ctx = data;
+
+	usleep(100000);
+	write(ctx->sfd[1], "w", 1);
+
+	kill_timeout(ctx);
+
+	return NULL;
+}
+
+static void *emitter_entry2(void *data)
+{
+	struct epoll_mtcontext *ctx = data;
+
+	usleep(100000);
+	write(ctx->sfd[1], "w", 1);
+	write(ctx->sfd[3], "w", 1);
+
+	kill_timeout(ctx);
+
+	return NULL;
+}
+
+/*
+ *          t0
+ *           | (ew)
+ *          e0
+ *           | (lt)
+ *          s0
+ */
+TEST(epoll1)
+{
+	int efd;
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (ew)
+ *          e0
+ *           | (et)
+ *          s0
+ */
+TEST(epoll2)
+{
+	int efd;
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd, &e, 1, 0), 0);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        s0    s2
+ */
+TEST(epoll3)
+{
+	int efd;
+	int sfd[4];
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *     (et) /  \ (et)
+ *        s0    s2
+ */
+TEST(epoll4)
+{
+	int efd;
+	int sfd[4];
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 0);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (lt)
+ *          s0
+ */
+TEST(epoll5)
+{
+	int efd;
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	ASSERT_EQ(poll(&pfd, 1, 0), 1);
+	ASSERT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	ASSERT_EQ(poll(&pfd, 1, 0), 1);
+	ASSERT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (et)
+ *          s0
+ */
+TEST(epoll6)
+{
+	int efd;
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	ASSERT_EQ(poll(&pfd, 1, 0), 1);
+	ASSERT_EQ(epoll_wait(efd, &e, 1, 0), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	ASSERT_EQ(poll(&pfd, 1, 0), 0);
+	ASSERT_EQ(epoll_wait(efd, &e, 1, 0), 0);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *           t0
+ *            | (p)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        s0    s2
+ */
+
+TEST(epoll7)
+{
+	int efd;
+	int sfd[4];
+	struct pollfd pfd;
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *           t0
+ *            | (p)
+ *           e0
+ *     (et) /  \ (et)
+ *        s0    s2
+ */
+TEST(epoll8)
+{
+	int efd;
+	int sfd[4];
+	struct pollfd pfd;
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 2);
+
+	pfd.fd = efd;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 0);
+	EXPECT_EQ(epoll_wait(efd, events, 2, 0), 0);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll9)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (et)
+ *           s0
+ */
+TEST(epoll10)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        s0    s2
+ */
+TEST(epoll11)
+{
+	pthread_t emitter;
+	struct epoll_event events[2];
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[2], events), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry2a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], events, 2, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *     (et) /  \ (et)
+ *        s0    s2
+ */
+TEST(epoll12)
+{
+	pthread_t emitter;
+	struct epoll_event events[2];
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[2], events), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], events, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll13)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (et)
+ *           s0
+ */
+TEST(epoll14)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        s0    s2
+ */
+TEST(epoll15)
+{
+	pthread_t emitter;
+	struct epoll_event events[2];
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[2], events), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry2ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], events, 2, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *     (et) /  \ (et)
+ *        s0    s2
+ */
+TEST(epoll16)
+{
+	pthread_t emitter;
+	struct epoll_event events[2];
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[2], events), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], events, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *          t0
+ *           | (ew)
+ *          e0
+ *           | (lt)
+ *          e1
+ *           | (lt)
+ *          s0
+ */
+TEST(epoll17)
+{
+	int efd[2];
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (ew)
+ *          e0
+ *           | (lt)
+ *          e1
+ *           | (et)
+ *          s0
+ */
+TEST(epoll18)
+{
+	int efd[2];
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll19)
+{
+	int efd[2];
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll20)
+{
+	int efd[2];
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (lt)
+ *          e1
+ *           | (lt)
+ *          s0
+ */
+TEST(epoll21)
+{
+	int efd[2];
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (lt)
+ *          e1
+ *           | (et)
+ *          s0
+ */
+TEST(epoll22)
+{
+	int efd[2];
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (et)
+ *          e1
+ *           | (lt)
+ *          s0
+ */
+TEST(epoll23)
+{
+	int efd[2];
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 0);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *          t0
+ *           | (p)
+ *          e0
+ *           | (et)
+ *          e1
+ *           | (et)
+ *          s0
+ */
+TEST(epoll24)
+{
+	int efd[2];
+	int sfd[2];
+	struct pollfd pfd;
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 0);
+	EXPECT_EQ(epoll_wait(efd[0], &e, 1, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll25)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll26)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll27)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll28)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll29)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll30)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll31)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *            | (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll32)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 1);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (ew)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll33)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (ew)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll34)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1o, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (ew)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll35)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (ew)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll36)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1o, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (ew)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll37)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (ew)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll38)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1o, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_or(&ctx.count, 2);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (ew)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll39)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (ew)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll40)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1o, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_or(&ctx.count, 2);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (p)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll41)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (p)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll42)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1op, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (p)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll43)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *    (ew) |    | (p)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll44)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1op, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (p)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll45)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (p)
+ *         |   e0
+ *          \  / (lt)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll46)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1op, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (p)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll47)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	pfd.fd = ctx.efd[1];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[1], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *        t0   t1
+ *     (p) |    | (p)
+ *         |   e0
+ *          \  / (et)
+ *           e1
+ *            | (et)
+ *           s0
+ */
+TEST(epoll48)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1op, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry1, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[1], &e, 1, -1) > 0)
+		__sync_fetch_and_or(&ctx.count, 2);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_TRUE((ctx.count == 2) || (ctx.count == 3));
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll49)
+{
+	int efd[3];
+	int sfd[4];
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	efd[2] = epoll_create(1);
+	ASSERT_GE(efd[2], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[2], EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(efd[2]);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *           t0
+ *            | (ew)
+ *           e0
+ *     (et) /  \ (et)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll50)
+{
+	int efd[3];
+	int sfd[4];
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	efd[2] = epoll_create(1);
+	ASSERT_GE(efd[2], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[2], EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(efd[2]);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *           t0
+ *            | (p)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll51)
+{
+	int efd[3];
+	int sfd[4];
+	struct pollfd pfd;
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	efd[2] = epoll_create(1);
+	ASSERT_GE(efd[2], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[2], EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(efd[2]);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *           t0
+ *            | (p)
+ *           e0
+ *     (et) /  \ (et)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll52)
+{
+	int efd[3];
+	int sfd[4];
+	struct pollfd pfd;
+	struct epoll_event events[2];
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &sfd[2]), 0);
+
+	efd[0] = epoll_create(1);
+	ASSERT_GE(efd[0], 0);
+
+	efd[1] = epoll_create(1);
+	ASSERT_GE(efd[1], 0);
+
+	efd[2] = epoll_create(1);
+	ASSERT_GE(efd[2], 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[1], EPOLL_CTL_ADD, sfd[0], events), 0);
+
+	events[0].events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd[2], EPOLL_CTL_ADD, sfd[2], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[1], events), 0);
+
+	events[0].events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(efd[0], EPOLL_CTL_ADD, efd[2], events), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+	ASSERT_EQ(write(sfd[3], "w", 1), 1);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 1);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 2);
+
+	pfd.fd = efd[0];
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 0);
+	EXPECT_EQ(epoll_wait(efd[0], events, 2, 0), 0);
+
+	close(efd[0]);
+	close(efd[1]);
+	close(efd[2]);
+	close(sfd[0]);
+	close(sfd[1]);
+	close(sfd[2]);
+	close(sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll53)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *     (et) /  \ (et)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll54)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll55)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (p)
+ *           e0
+ *     (et) /  \ (et)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll56)
+{
+	pthread_t emitter;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	if (epoll_wait(ctx.efd[0], &e, 1, -1) > 0)
+		__sync_fetch_and_add(&ctx.count, 1);
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *      (p) \  / (p)
+ *           e0
+ *     (lt) /  \ (lt)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll57)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	pfd.fd = ctx.efd[0];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[0], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+/*
+ *        t0    t1
+ *      (p) \  / (p)
+ *           e0
+ *     (et) /  \ (et)
+ *        e1    e2
+ *    (lt) |     | (lt)
+ *        s0    s2
+ */
+TEST(epoll58)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[0]), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, &ctx.sfd[2]), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.efd[1] = epoll_create(1);
+	ASSERT_GE(ctx.efd[1], 0);
+
+	ctx.efd[2] = epoll_create(1);
+	ASSERT_GE(ctx.efd[2], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[1], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[2], EPOLL_CTL_ADD, ctx.sfd[2], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[1], &e), 0);
+
+	e.events = EPOLLIN | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.efd[2], &e), 0);
+
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&ctx.waiter, NULL, waiter_entry1ap, &ctx), 0);
+	ASSERT_EQ(pthread_create(&emitter, NULL, emitter_entry2, &ctx), 0);
+
+	pfd.fd = ctx.efd[0];
+	pfd.events = POLLIN;
+	if (poll(&pfd, 1, -1) > 0) {
+		if (epoll_wait(ctx.efd[0], &e, 1, 0) > 0)
+			__sync_fetch_and_add(&ctx.count, 1);
+	}
+
+	ASSERT_EQ(pthread_join(ctx.waiter, NULL), 0);
+	EXPECT_EQ(ctx.count, 2);
+
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+
+	close(ctx.efd[0]);
+	close(ctx.efd[1]);
+	close(ctx.efd[2]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+	close(ctx.sfd[2]);
+	close(ctx.sfd[3]);
+}
+
+static void *epoll59_thread(void *ctx_)
+{
+	struct epoll_mtcontext *ctx = ctx_;
+	struct epoll_event e;
+	int i;
+
+	for (i = 0; i < 100000; i++) {
+		while (ctx->count == 0)
+			;
+
+		e.events = EPOLLIN | EPOLLERR | EPOLLET;
+		epoll_ctl(ctx->efd[0], EPOLL_CTL_MOD, ctx->sfd[0], &e);
+		ctx->count = 0;
+	}
+
+	return NULL;
+}
+
+/*
+ *        t0
+ *      (p) \
+ *           e0
+ *     (et) /
+ *        e0
+ *
+ * Based on https://bugzilla.kernel.org/show_bug.cgi?id=205933
+ */
+TEST(epoll59)
+{
+	pthread_t emitter;
+	struct pollfd pfd;
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+	int i, ret;
+
+	signal(SIGUSR1, signal_handler);
+
+	ctx.efd[0] = epoll_create1(0);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	ctx.sfd[0] = eventfd(1, 0);
+	ASSERT_GE(ctx.sfd[0], 0);
+
+	e.events = EPOLLIN | EPOLLERR | EPOLLET;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	ASSERT_EQ(pthread_create(&emitter, NULL, epoll59_thread, &ctx), 0);
+
+	for (i = 0; i < 100000; i++) {
+		ret = epoll_wait(ctx.efd[0], &e, 1, 1000);
+		ASSERT_GT(ret, 0);
+
+		while (ctx.count != 0)
+			;
+		ctx.count = 1;
+	}
+	if (pthread_tryjoin_np(emitter, NULL) < 0) {
+		pthread_kill(emitter, SIGUSR1);
+		pthread_join(emitter, NULL);
+	}
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+}
+
+enum {
+	EPOLL60_EVENTS_NR = 10,
+};
+
+struct epoll60_ctx {
+	volatile int stopped;
+	int ready;
+	int waiters;
+	int epfd;
+	int evfd[EPOLL60_EVENTS_NR];
+};
+
+static void *epoll60_wait_thread(void *ctx_)
+{
+	struct epoll60_ctx *ctx = ctx_;
+	struct epoll_event e;
+	sigset_t sigmask;
+	uint64_t v;
+	int ret;
+
+	/* Block SIGUSR1 */
+	sigemptyset(&sigmask);
+	sigaddset(&sigmask, SIGUSR1);
+	sigprocmask(SIG_SETMASK, &sigmask, NULL);
+
+	/* Prepare empty mask for epoll_pwait() */
+	sigemptyset(&sigmask);
+
+	while (!ctx->stopped) {
+		/* Mark we are ready */
+		__atomic_fetch_add(&ctx->ready, 1, __ATOMIC_ACQUIRE);
+
+		/* Start when all are ready */
+		while (__atomic_load_n(&ctx->ready, __ATOMIC_ACQUIRE) &&
+		       !ctx->stopped);
+
+		/* Account this waiter */
+		__atomic_fetch_add(&ctx->waiters, 1, __ATOMIC_ACQUIRE);
+
+		ret = epoll_pwait(ctx->epfd, &e, 1, 2000, &sigmask);
+		if (ret != 1) {
+			/* We expect only signal delivery on stop */
+			assert(ret < 0 && errno == EINTR && "Lost wakeup!\n");
+			assert(ctx->stopped);
+			break;
+		}
+
+		ret = read(e.data.fd, &v, sizeof(v));
+		/* Since we are on ET mode, thus each thread gets its own fd. */
+		assert(ret == sizeof(v));
+
+		__atomic_fetch_sub(&ctx->waiters, 1, __ATOMIC_RELEASE);
+	}
+
+	return NULL;
+}
+
+static inline unsigned long long msecs(void)
+{
+	struct timespec ts;
+	unsigned long long msecs;
+
+	clock_gettime(CLOCK_REALTIME, &ts);
+	msecs = ts.tv_sec * 1000ull;
+	msecs += ts.tv_nsec / 1000000ull;
+
+	return msecs;
+}
+
+static inline int count_waiters(struct epoll60_ctx *ctx)
+{
+	return __atomic_load_n(&ctx->waiters, __ATOMIC_ACQUIRE);
+}
+
+TEST(epoll60)
+{
+	struct epoll60_ctx ctx = { 0 };
+	pthread_t waiters[ARRAY_SIZE(ctx.evfd)];
+	struct epoll_event e;
+	int i, n, ret;
+
+	signal(SIGUSR1, signal_handler);
+
+	ctx.epfd = epoll_create1(0);
+	ASSERT_GE(ctx.epfd, 0);
+
+	/* Create event fds */
+	for (i = 0; i < ARRAY_SIZE(ctx.evfd); i++) {
+		ctx.evfd[i] = eventfd(0, EFD_NONBLOCK);
+		ASSERT_GE(ctx.evfd[i], 0);
+
+		e.events = EPOLLIN | EPOLLET;
+		e.data.fd = ctx.evfd[i];
+		ASSERT_EQ(epoll_ctl(ctx.epfd, EPOLL_CTL_ADD, ctx.evfd[i], &e), 0);
+	}
+
+	/* Create waiter threads */
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		ASSERT_EQ(pthread_create(&waiters[i], NULL,
+					 epoll60_wait_thread, &ctx), 0);
+
+	for (i = 0; i < 300; i++) {
+		uint64_t v = 1, ms;
+
+		/* Wait for all to be ready */
+		while (__atomic_load_n(&ctx.ready, __ATOMIC_ACQUIRE) !=
+		       ARRAY_SIZE(ctx.evfd))
+			;
+
+		/* Steady, go */
+		__atomic_fetch_sub(&ctx.ready, ARRAY_SIZE(ctx.evfd),
+				   __ATOMIC_ACQUIRE);
+
+		/* Wait all have gone to kernel */
+		while (count_waiters(&ctx) != ARRAY_SIZE(ctx.evfd))
+			;
+
+		/* 1ms should be enough to schedule away */
+		usleep(1000);
+
+		/* Quickly signal all handles at once */
+		for (n = 0; n < ARRAY_SIZE(ctx.evfd); n++) {
+			ret = write(ctx.evfd[n], &v, sizeof(v));
+			ASSERT_EQ(ret, sizeof(v));
+		}
+
+		/* Busy loop for 1s and wait for all waiters to wake up */
+		ms = msecs();
+		while (count_waiters(&ctx) && msecs() < ms + 1000)
+			;
+
+		ASSERT_EQ(count_waiters(&ctx), 0);
+	}
+	ctx.stopped = 1;
+	/* Stop waiters */
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		ret = pthread_kill(waiters[i], SIGUSR1);
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		pthread_join(waiters[i], NULL);
+
+	for (i = 0; i < ARRAY_SIZE(waiters); i++)
+		close(ctx.evfd[i]);
+	close(ctx.epfd);
+}
+
+struct epoll61_ctx {
+	int epfd;
+	int evfd;
+};
+
+static void *epoll61_write_eventfd(void *ctx_)
+{
+	struct epoll61_ctx *ctx = ctx_;
+	int64_t l = 1;
+
+	usleep(10950);
+	write(ctx->evfd, &l, sizeof(l));
+	return NULL;
+}
+
+static void *epoll61_epoll_with_timeout(void *ctx_)
+{
+	struct epoll61_ctx *ctx = ctx_;
+	struct epoll_event events[1];
+	int n;
+
+	n = epoll_wait(ctx->epfd, events, 1, 11);
+	/*
+	 * If epoll returned the eventfd, write on the eventfd to wake up the
+	 * blocking poller.
+	 */
+	if (n == 1) {
+		int64_t l = 1;
+
+		write(ctx->evfd, &l, sizeof(l));
+	}
+	return NULL;
+}
+
+static void *epoll61_blocking_epoll(void *ctx_)
+{
+	struct epoll61_ctx *ctx = ctx_;
+	struct epoll_event events[1];
+
+	epoll_wait(ctx->epfd, events, 1, -1);
+	return NULL;
+}
+
+TEST(epoll61)
+{
+	struct epoll61_ctx ctx;
+	struct epoll_event ev;
+	int i, r;
+
+	ctx.epfd = epoll_create1(0);
+	ASSERT_GE(ctx.epfd, 0);
+	ctx.evfd = eventfd(0, EFD_NONBLOCK);
+	ASSERT_GE(ctx.evfd, 0);
+
+	ev.events = EPOLLIN | EPOLLET | EPOLLERR | EPOLLHUP;
+	ev.data.ptr = NULL;
+	r = epoll_ctl(ctx.epfd, EPOLL_CTL_ADD, ctx.evfd, &ev);
+	ASSERT_EQ(r, 0);
+
+	/*
+	 * We are testing a race.  Repeat the test case 1000 times to make it
+	 * more likely to fail in case of a bug.
+	 */
+	for (i = 0; i < 1000; i++) {
+		pthread_t threads[3];
+		int n;
+
+		/*
+		 * Start 3 threads:
+		 * Thread 1 sleeps for 10.9ms and writes to the evenfd.
+		 * Thread 2 calls epoll with a timeout of 11ms.
+		 * Thread 3 calls epoll with a timeout of -1.
+		 *
+		 * The eventfd write by Thread 1 should either wakeup Thread 2
+		 * or Thread 3.  If it wakes up Thread 2, Thread 2 writes on the
+		 * eventfd to wake up Thread 3.
+		 *
+		 * If no events are missed, all three threads should eventually
+		 * be joinable.
+		 */
+		ASSERT_EQ(pthread_create(&threads[0], NULL,
+					 epoll61_write_eventfd, &ctx), 0);
+		ASSERT_EQ(pthread_create(&threads[1], NULL,
+					 epoll61_epoll_with_timeout, &ctx), 0);
+		ASSERT_EQ(pthread_create(&threads[2], NULL,
+					 epoll61_blocking_epoll, &ctx), 0);
+
+		for (n = 0; n < ARRAY_SIZE(threads); ++n)
+			ASSERT_EQ(pthread_join(threads[n], NULL), 0);
+	}
+
+	close(ctx.epfd);
+	close(ctx.evfd);
+}
+
+/* Equivalent to basic test epoll1, but exercising epoll_pwait2. */
+TEST(epoll62)
+{
+	int efd;
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ASSERT_EQ(write(sfd[1], "w", 1), 1);
+
+	EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, NULL, NULL, 0), 1);
+	EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, NULL, NULL, 0), 1);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/* Epoll_pwait2 basic timeout test. */
+TEST(epoll63)
+{
+	const int cfg_delay_ms = 10;
+	unsigned long long tdiff;
+	struct __kernel_timespec ts;
+	int efd;
+	int sfd[2];
+	struct epoll_event e;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sfd), 0);
+
+	efd = epoll_create(1);
+	ASSERT_GE(efd, 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(efd, EPOLL_CTL_ADD, sfd[0], &e), 0);
+
+	ts.tv_sec = 0;
+	ts.tv_nsec = cfg_delay_ms * 1000 * 1000;
+
+	tdiff = msecs();
+	EXPECT_EQ(sys_epoll_pwait2(efd, &e, 1, &ts, NULL, 0), 0);
+	tdiff = msecs() - tdiff;
+
+	EXPECT_GE(tdiff, cfg_delay_ms);
+
+	close(efd);
+	close(sfd[0]);
+	close(sfd[1]);
+}
+
+/*
+ *        t0    t1
+ *     (ew) \  / (ew)
+ *           e0
+ *            | (lt)
+ *           s0
+ */
+TEST(epoll64)
+{
+	pthread_t waiter[2];
+	struct epoll_event e;
+	struct epoll_mtcontext ctx = { 0 };
+
+	signal(SIGUSR1, signal_handler);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, ctx.sfd), 0);
+
+	ctx.efd[0] = epoll_create(1);
+	ASSERT_GE(ctx.efd[0], 0);
+
+	e.events = EPOLLIN;
+	ASSERT_EQ(epoll_ctl(ctx.efd[0], EPOLL_CTL_ADD, ctx.sfd[0], &e), 0);
+
+	/*
+	 * main will act as the emitter once both waiter threads are
+	 * blocked and expects to both be awoken upon the ready event.
+	 */
+	ctx.main = pthread_self();
+	ASSERT_EQ(pthread_create(&waiter[0], NULL, waiter_entry1a, &ctx), 0);
+	ASSERT_EQ(pthread_create(&waiter[1], NULL, waiter_entry1a, &ctx), 0);
+
+	usleep(100000);
+	ASSERT_EQ(write(ctx.sfd[1], "w", 1), 1);
+
+	ASSERT_EQ(pthread_join(waiter[0], NULL), 0);
+	ASSERT_EQ(pthread_join(waiter[1], NULL), 0);
+
+	EXPECT_EQ(ctx.count, 2);
+
+	close(ctx.efd[0]);
+	close(ctx.sfd[0]);
+	close(ctx.sfd[1]);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/eventfd/.gitignore b/tools/testing/selftests/filesystems/eventfd/.gitignore
new file mode 100644
index 000000000000..483faf59fe4a
--- /dev/null
+++ b/tools/testing/selftests/filesystems/eventfd/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+eventfd_test
diff --git a/tools/testing/selftests/filesystems/eventfd/Makefile b/tools/testing/selftests/filesystems/eventfd/Makefile
new file mode 100644
index 000000000000..0a8e3910df15
--- /dev/null
+++ b/tools/testing/selftests/filesystems/eventfd/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += $(KHDR_INCLUDES)
+LDLIBS += -lpthread
+TEST_GEN_PROGS := eventfd_test
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/eventfd/eventfd_test.c b/tools/testing/selftests/filesystems/eventfd/eventfd_test.c
new file mode 100644
index 000000000000..1b48f267157d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/eventfd/eventfd_test.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <asm/unistd.h>
+#include <linux/time_types.h>
+#include <unistd.h>
+#include <assert.h>
+#include <signal.h>
+#include <pthread.h>
+#include <sys/epoll.h>
+#include <sys/eventfd.h>
+#include "kselftest_harness.h"
+
+#define EVENTFD_TEST_ITERATIONS 100000UL
+
+struct error {
+	int  code;
+	char msg[512];
+};
+
+static int error_set(struct error *err, int code, const char *fmt, ...)
+{
+	va_list args;
+	int r;
+
+	if (code == 0 || !err || err->code != 0)
+		return code;
+
+	err->code = code;
+	va_start(args, fmt);
+	r = vsnprintf(err->msg, sizeof(err->msg), fmt, args);
+	assert((size_t)r < sizeof(err->msg));
+	va_end(args);
+
+	return code;
+}
+
+static inline int sys_eventfd2(unsigned int count, int flags)
+{
+	return syscall(__NR_eventfd2, count, flags);
+}
+
+TEST(eventfd_check_flag_rdwr)
+{
+	int fd, flags;
+
+	fd = sys_eventfd2(0, 0);
+	ASSERT_GE(fd, 0);
+
+	flags = fcntl(fd, F_GETFL);
+	// The kernel automatically adds the O_RDWR flag.
+	EXPECT_EQ(flags, O_RDWR);
+
+	close(fd);
+}
+
+TEST(eventfd_check_flag_cloexec)
+{
+	int fd, flags;
+
+	fd = sys_eventfd2(0, EFD_CLOEXEC);
+	ASSERT_GE(fd, 0);
+
+	flags = fcntl(fd, F_GETFD);
+	ASSERT_GT(flags, -1);
+	EXPECT_EQ(flags, FD_CLOEXEC);
+
+	close(fd);
+}
+
+TEST(eventfd_check_flag_nonblock)
+{
+	int fd, flags;
+
+	fd = sys_eventfd2(0, EFD_NONBLOCK);
+	ASSERT_GE(fd, 0);
+
+	flags = fcntl(fd, F_GETFL);
+	ASSERT_GT(flags, -1);
+	EXPECT_EQ(flags & EFD_NONBLOCK, EFD_NONBLOCK);
+	EXPECT_EQ(flags & O_RDWR, O_RDWR);
+
+	close(fd);
+}
+
+TEST(eventfd_check_flag_cloexec_and_nonblock)
+{
+	int fd, flags;
+
+	fd = sys_eventfd2(0, EFD_CLOEXEC|EFD_NONBLOCK);
+	ASSERT_GE(fd, 0);
+
+	flags = fcntl(fd, F_GETFL);
+	ASSERT_GT(flags, -1);
+	EXPECT_EQ(flags & EFD_NONBLOCK, EFD_NONBLOCK);
+	EXPECT_EQ(flags & O_RDWR, O_RDWR);
+
+	flags = fcntl(fd, F_GETFD);
+	ASSERT_GT(flags, -1);
+	EXPECT_EQ(flags, FD_CLOEXEC);
+
+	close(fd);
+}
+
+static inline void trim_newline(char *str)
+{
+	char *pos = strrchr(str, '\n');
+
+	if (pos)
+		*pos = '\0';
+}
+
+static int verify_fdinfo(int fd, struct error *err, const char *prefix,
+		size_t prefix_len, const char *expect, ...)
+{
+	char buffer[512] = {0, };
+	char path[512] = {0, };
+	va_list args;
+	FILE *f;
+	char *line = NULL;
+	size_t n = 0;
+	int found = 0;
+	int r;
+
+	va_start(args, expect);
+	r = vsnprintf(buffer, sizeof(buffer), expect, args);
+	assert((size_t)r < sizeof(buffer));
+	va_end(args);
+
+	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", fd);
+	f = fopen(path, "re");
+	if (!f)
+		return error_set(err, -1, "fdinfo open failed for %d", fd);
+
+	while (getline(&line, &n, f) != -1) {
+		char *val;
+
+		if (strncmp(line, prefix, prefix_len))
+			continue;
+
+		found = 1;
+
+		val = line + prefix_len;
+		r = strcmp(val, buffer);
+		if (r != 0) {
+			trim_newline(line);
+			trim_newline(buffer);
+			error_set(err, -1, "%s '%s' != '%s'",
+				  prefix, val, buffer);
+		}
+		break;
+	}
+
+	free(line);
+	fclose(f);
+
+	if (found == 0)
+		return error_set(err, -1, "%s not found for fd %d",
+				 prefix, fd);
+
+	return 0;
+}
+
+TEST(eventfd_check_flag_semaphore)
+{
+	struct error err = {0};
+	int fd, ret;
+
+	fd = sys_eventfd2(0, EFD_SEMAPHORE);
+	ASSERT_GE(fd, 0);
+
+	ret = fcntl(fd, F_GETFL);
+	ASSERT_GT(ret, -1);
+	EXPECT_EQ(ret & O_RDWR, O_RDWR);
+
+	// The semaphore could only be obtained from fdinfo.
+	ret = verify_fdinfo(fd, &err, "eventfd-semaphore: ", 19, "1\n");
+	if (ret != 0)
+		ksft_print_msg("eventfd semaphore flag check failed: %s\n", err.msg);
+	EXPECT_EQ(ret, 0);
+
+	close(fd);
+}
+
+/*
+ * A write(2) fails with the error EINVAL if the size of the supplied buffer
+ * is less than 8 bytes, or if an attempt is made to write the value
+ * 0xffffffffffffffff.
+ */
+TEST(eventfd_check_write)
+{
+	uint64_t value = 1;
+	ssize_t size;
+	int fd;
+
+	fd = sys_eventfd2(0, 0);
+	ASSERT_GE(fd, 0);
+
+	size = write(fd, &value, sizeof(int));
+	EXPECT_EQ(size, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	size = write(fd, &value, sizeof(value));
+	EXPECT_EQ(size, sizeof(value));
+
+	value = (uint64_t)-1;
+	size = write(fd, &value, sizeof(value));
+	EXPECT_EQ(size, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	close(fd);
+}
+
+/*
+ * A read(2) fails with the error EINVAL if the size of the supplied buffer is
+ * less than 8 bytes.
+ */
+TEST(eventfd_check_read)
+{
+	uint64_t value;
+	ssize_t size;
+	int fd;
+
+	fd = sys_eventfd2(1, 0);
+	ASSERT_GE(fd, 0);
+
+	size = read(fd, &value, sizeof(int));
+	EXPECT_EQ(size, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	size = read(fd, &value, sizeof(value));
+	EXPECT_EQ(size, sizeof(value));
+	EXPECT_EQ(value, 1);
+
+	close(fd);
+}
+
+
+/*
+ * If EFD_SEMAPHORE was not specified and the eventfd counter has a nonzero
+ * value, then a read(2) returns 8 bytes containing that value, and the
+ * counter's value is reset to zero.
+ * If the eventfd counter is zero at the time of the call to read(2), then the
+ * call fails with the error EAGAIN if the file descriptor has been made nonblocking.
+ */
+TEST(eventfd_check_read_with_nonsemaphore)
+{
+	uint64_t value;
+	ssize_t size;
+	int fd;
+	int i;
+
+	fd = sys_eventfd2(0, EFD_NONBLOCK);
+	ASSERT_GE(fd, 0);
+
+	value = 1;
+	for (i = 0; i < EVENTFD_TEST_ITERATIONS; i++) {
+		size = write(fd, &value, sizeof(value));
+		EXPECT_EQ(size, sizeof(value));
+	}
+
+	size = read(fd, &value, sizeof(value));
+	EXPECT_EQ(size, sizeof(uint64_t));
+	EXPECT_EQ(value, EVENTFD_TEST_ITERATIONS);
+
+	size = read(fd, &value, sizeof(value));
+	EXPECT_EQ(size, -1);
+	EXPECT_EQ(errno, EAGAIN);
+
+	close(fd);
+}
+
+/*
+ * If EFD_SEMAPHORE was specified and the eventfd counter has a nonzero value,
+ * then a read(2) returns 8 bytes containing the value 1, and the counter's
+ * value is decremented by 1.
+ * If the eventfd counter is zero at the time of the call to read(2), then the
+ * call fails with the error EAGAIN if the file descriptor has been made nonblocking.
+ */
+TEST(eventfd_check_read_with_semaphore)
+{
+	uint64_t value;
+	ssize_t size;
+	int fd;
+	int i;
+
+	fd = sys_eventfd2(0, EFD_SEMAPHORE|EFD_NONBLOCK);
+	ASSERT_GE(fd, 0);
+
+	value = 1;
+	for (i = 0; i < EVENTFD_TEST_ITERATIONS; i++) {
+		size = write(fd, &value, sizeof(value));
+		EXPECT_EQ(size, sizeof(value));
+	}
+
+	for (i = 0; i < EVENTFD_TEST_ITERATIONS; i++) {
+		size = read(fd, &value, sizeof(value));
+		EXPECT_EQ(size, sizeof(value));
+		EXPECT_EQ(value, 1);
+	}
+
+	size = read(fd, &value, sizeof(value));
+	EXPECT_EQ(size, -1);
+	EXPECT_EQ(errno, EAGAIN);
+
+	close(fd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/fat/.gitignore b/tools/testing/selftests/filesystems/fat/.gitignore
new file mode 100644
index 000000000000..b89920ed841c
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fat/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+rename_exchange
diff --git a/tools/testing/selftests/filesystems/fat/Makefile b/tools/testing/selftests/filesystems/fat/Makefile
new file mode 100644
index 000000000000..902033f6ef09
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fat/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_PROGS := run_fat_tests.sh
+TEST_GEN_PROGS_EXTENDED := rename_exchange
+CFLAGS += -O2 -g -Wall $(KHDR_INCLUDES)
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/fat/config b/tools/testing/selftests/filesystems/fat/config
new file mode 100644
index 000000000000..6cf95e787a17
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fat/config
@@ -0,0 +1,2 @@
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_VFAT_FS=y
diff --git a/tools/testing/selftests/filesystems/fat/rename_exchange.c b/tools/testing/selftests/filesystems/fat/rename_exchange.c
new file mode 100644
index 000000000000..e488ad354fce
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fat/rename_exchange.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Program that atomically exchanges two paths using
+ * the renameat2() system call RENAME_EXCHANGE flag.
+ *
+ * Copyright 2022 Red Hat Inc.
+ * Author: Javier Martinez Canillas <javierm@redhat.com>
+ */
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+void print_usage(const char *program)
+{
+	printf("Usage: %s [oldpath] [newpath]\n", program);
+	printf("Atomically exchange oldpath and newpath\n");
+}
+
+int main(int argc, char *argv[])
+{
+	int ret;
+
+	if (argc != 3) {
+		print_usage(argv[0]);
+		exit(EXIT_FAILURE);
+	}
+
+	ret = renameat2(AT_FDCWD, argv[1], AT_FDCWD, argv[2], RENAME_EXCHANGE);
+	if (ret) {
+		perror("rename exchange failed");
+		exit(EXIT_FAILURE);
+	}
+
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/testing/selftests/filesystems/fat/run_fat_tests.sh b/tools/testing/selftests/filesystems/fat/run_fat_tests.sh
new file mode 100755
index 000000000000..d61264d4795d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fat/run_fat_tests.sh
@@ -0,0 +1,82 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run filesystem operations tests on an 1 MiB disk image that is formatted with
+# a vfat filesystem and mounted in a temporary directory using a loop device.
+#
+# Copyright 2022 Red Hat Inc.
+# Author: Javier Martinez Canillas <javierm@redhat.com>
+
+set -e
+set -u
+set -o pipefail
+
+BASE_DIR="$(dirname $0)"
+TMP_DIR="$(mktemp -d /tmp/fat_tests_tmp.XXXXXX)"
+IMG_PATH="${TMP_DIR}/fat.img"
+MNT_PATH="${TMP_DIR}/mnt"
+
+cleanup()
+{
+    mountpoint -q "${MNT_PATH}" && unmount_image
+    rm -rf "${TMP_DIR}"
+}
+trap cleanup SIGINT SIGTERM EXIT
+
+create_loopback()
+{
+    touch "${IMG_PATH}"
+    chattr +C "${IMG_PATH}" >/dev/null 2>&1 || true
+
+    truncate -s 1M "${IMG_PATH}"
+    mkfs.vfat "${IMG_PATH}" >/dev/null 2>&1
+}
+
+mount_image()
+{
+    mkdir -p "${MNT_PATH}"
+    sudo mount -o loop "${IMG_PATH}" "${MNT_PATH}"
+}
+
+rename_exchange_test()
+{
+    local rename_exchange="${BASE_DIR}/rename_exchange"
+    local old_path="${MNT_PATH}/old_file"
+    local new_path="${MNT_PATH}/new_file"
+
+    echo old | sudo tee "${old_path}" >/dev/null 2>&1
+    echo new | sudo tee "${new_path}" >/dev/null 2>&1
+    sudo "${rename_exchange}" "${old_path}" "${new_path}" >/dev/null 2>&1
+    sudo sync -f "${MNT_PATH}"
+    grep new "${old_path}" >/dev/null 2>&1
+    grep old "${new_path}" >/dev/null 2>&1
+}
+
+rename_exchange_subdir_test()
+{
+    local rename_exchange="${BASE_DIR}/rename_exchange"
+    local dir_path="${MNT_PATH}/subdir"
+    local old_path="${MNT_PATH}/old_file"
+    local new_path="${dir_path}/new_file"
+
+    sudo mkdir -p "${dir_path}"
+    echo old | sudo tee "${old_path}" >/dev/null 2>&1
+    echo new | sudo tee "${new_path}" >/dev/null 2>&1
+    sudo "${rename_exchange}" "${old_path}" "${new_path}" >/dev/null 2>&1
+    sudo sync -f "${MNT_PATH}"
+    grep new "${old_path}" >/dev/null 2>&1
+    grep old "${new_path}" >/dev/null 2>&1
+}
+
+unmount_image()
+{
+    sudo umount "${MNT_PATH}" &> /dev/null
+}
+
+create_loopback
+mount_image
+rename_exchange_test
+rename_exchange_subdir_test
+unmount_image
+
+exit 0
diff --git a/tools/testing/selftests/filesystems/fclog.c b/tools/testing/selftests/filesystems/fclog.c
new file mode 100644
index 000000000000..551c4a0f395a
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fclog.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2025 SUSE LLC.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mount.h>
+
+#include "kselftest_harness.h"
+
+#define ASSERT_ERRNO(expected, _t, seen)				\
+	__EXPECT(expected, #expected,					\
+		({__typeof__(seen) _tmp_seen = (seen);			\
+		  _tmp_seen >= 0 ? _tmp_seen : -errno; }), #seen, _t, 1)
+
+#define ASSERT_ERRNO_EQ(expected, seen) \
+	ASSERT_ERRNO(expected, ==, seen)
+
+#define ASSERT_SUCCESS(seen) \
+	ASSERT_ERRNO(0, <=, seen)
+
+FIXTURE(ns)
+{
+	int host_mntns;
+};
+
+FIXTURE_SETUP(ns)
+{
+	/* Stash the old mntns. */
+	self->host_mntns = open("/proc/self/ns/mnt", O_RDONLY|O_CLOEXEC);
+	ASSERT_SUCCESS(self->host_mntns);
+
+	/* Create a new mount namespace and make it private. */
+	ASSERT_SUCCESS(unshare(CLONE_NEWNS));
+	ASSERT_SUCCESS(mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL));
+}
+
+FIXTURE_TEARDOWN(ns)
+{
+	ASSERT_SUCCESS(setns(self->host_mntns, CLONE_NEWNS));
+	ASSERT_SUCCESS(close(self->host_mntns));
+}
+
+TEST_F(ns, fscontext_log_enodata)
+{
+	int fsfd = fsopen("tmpfs", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	/* A brand new fscontext has no log entries. */
+	char buf[128] = {};
+	for (int i = 0; i < 16; i++)
+		ASSERT_ERRNO_EQ(-ENODATA, read(fsfd, buf, sizeof(buf)));
+
+	ASSERT_SUCCESS(close(fsfd));
+}
+
+TEST_F(ns, fscontext_log_errorfc)
+{
+	int fsfd = fsopen("tmpfs", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_ERRNO_EQ(-EINVAL, fsconfig(fsfd, FSCONFIG_SET_STRING, "invalid-arg", "123", 0));
+
+	char buf[128] = {};
+	ASSERT_SUCCESS(read(fsfd, buf, sizeof(buf)));
+	EXPECT_STREQ("e tmpfs: Unknown parameter 'invalid-arg'\n", buf);
+
+	/* The message has been consumed. */
+	ASSERT_ERRNO_EQ(-ENODATA, read(fsfd, buf, sizeof(buf)));
+	ASSERT_SUCCESS(close(fsfd));
+}
+
+TEST_F(ns, fscontext_log_errorfc_after_fsmount)
+{
+	int fsfd = fsopen("tmpfs", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_ERRNO_EQ(-EINVAL, fsconfig(fsfd, FSCONFIG_SET_STRING, "invalid-arg", "123", 0));
+
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
+	int mfd = fsmount(fsfd, FSMOUNT_CLOEXEC, MOUNT_ATTR_NOEXEC | MOUNT_ATTR_NOSUID);
+	ASSERT_SUCCESS(mfd);
+	ASSERT_SUCCESS(move_mount(mfd, "", AT_FDCWD, "/tmp", MOVE_MOUNT_F_EMPTY_PATH));
+
+	/*
+	 * The fscontext log should still contain data even after
+	 * FSCONFIG_CMD_CREATE and fsmount().
+	 */
+	char buf[128] = {};
+	ASSERT_SUCCESS(read(fsfd, buf, sizeof(buf)));
+	EXPECT_STREQ("e tmpfs: Unknown parameter 'invalid-arg'\n", buf);
+
+	/* The message has been consumed. */
+	ASSERT_ERRNO_EQ(-ENODATA, read(fsfd, buf, sizeof(buf)));
+	ASSERT_SUCCESS(close(fsfd));
+}
+
+TEST_F(ns, fscontext_log_emsgsize)
+{
+	int fsfd = fsopen("tmpfs", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_ERRNO_EQ(-EINVAL, fsconfig(fsfd, FSCONFIG_SET_STRING, "invalid-arg", "123", 0));
+
+	char buf[128] = {};
+	/*
+	 * Attempting to read a message with too small a buffer should not
+	 * result in the message getting consumed.
+	 */
+	ASSERT_ERRNO_EQ(-EMSGSIZE, read(fsfd, buf, 0));
+	ASSERT_ERRNO_EQ(-EMSGSIZE, read(fsfd, buf, 1));
+	for (int i = 0; i < 16; i++)
+		ASSERT_ERRNO_EQ(-EMSGSIZE, read(fsfd, buf, 16));
+
+	ASSERT_SUCCESS(read(fsfd, buf, sizeof(buf)));
+	EXPECT_STREQ("e tmpfs: Unknown parameter 'invalid-arg'\n", buf);
+
+	/* The message has been consumed. */
+	ASSERT_ERRNO_EQ(-ENODATA, read(fsfd, buf, sizeof(buf)));
+	ASSERT_SUCCESS(close(fsfd));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/file_stressor.c b/tools/testing/selftests/filesystems/file_stressor.c
new file mode 100644
index 000000000000..141badd671a9
--- /dev/null
+++ b/tools/testing/selftests/filesystems/file_stressor.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
+
+#include <fcntl.h>
+#include <limits.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+#include <linux/types.h>
+#include <linux/mount.h>
+#include <sys/syscall.h>
+
+static inline int sys_fsopen(const char *fsname, unsigned int flags)
+{
+	return syscall(__NR_fsopen, fsname, flags);
+}
+
+static inline int sys_fsconfig(int fd, unsigned int cmd, const char *key,
+			       const char *value, int aux)
+{
+	return syscall(__NR_fsconfig, fd, cmd, key, value, aux);
+}
+
+static inline int sys_fsmount(int fd, unsigned int flags,
+			      unsigned int attr_flags)
+{
+	return syscall(__NR_fsmount, fd, flags, attr_flags);
+}
+
+#ifndef MOVE_MOUNT_F_EMPTY_PATH
+#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */
+#endif
+
+static inline int sys_move_mount(int from_dfd, const char *from_pathname,
+				 int to_dfd, const char *to_pathname,
+				 unsigned int flags)
+{
+	return syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd,
+		       to_pathname, flags);
+}
+
+FIXTURE(file_stressor) {
+	int fd_tmpfs;
+	int nr_procs;
+	int max_fds;
+	pid_t *pids_openers;
+	pid_t *pids_getdents;
+	int *fd_proc_pid;
+};
+
+FIXTURE_SETUP(file_stressor)
+{
+	int fd_context;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+	ASSERT_EQ(mkdir("/slab_typesafe_by_rcu", 0755), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	self->fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(self->fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(sys_move_mount(self->fd_tmpfs, "", -EBADF, "/slab_typesafe_by_rcu", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	self->nr_procs = sysconf(_SC_NPROCESSORS_ONLN);
+	self->pids_openers = malloc(sizeof(pid_t) * self->nr_procs);
+	ASSERT_NE(self->pids_openers, NULL);
+	self->pids_getdents = malloc(sizeof(pid_t) * self->nr_procs);
+	ASSERT_NE(self->pids_getdents, NULL);
+	self->fd_proc_pid = malloc(sizeof(int) * self->nr_procs);
+	ASSERT_NE(self->fd_proc_pid, NULL);
+	self->max_fds = 500;
+}
+
+FIXTURE_TEARDOWN(file_stressor)
+{
+	for (int i = 0; i < self->nr_procs; i++) {
+		int wstatus;
+		pid_t pid;
+
+		pid = waitpid(self->pids_openers[i], &wstatus, 0);
+		ASSERT_EQ(pid, self->pids_openers[i]);
+		ASSERT_TRUE(!WIFEXITED(wstatus) || !WIFSIGNALED(wstatus));
+
+		pid = waitpid(self->pids_getdents[i], &wstatus, 0);
+		ASSERT_EQ(pid, self->pids_getdents[i]);
+		ASSERT_TRUE(!WIFEXITED(wstatus) || !WIFSIGNALED(wstatus));
+	}
+	free(self->pids_openers);
+	free(self->pids_getdents);
+	ASSERT_EQ(close(self->fd_tmpfs), 0);
+
+	umount2("/slab_typesafe_by_rcu", 0);
+	ASSERT_EQ(rmdir("/slab_typesafe_by_rcu"), 0);
+}
+
+TEST_F_TIMEOUT(file_stressor, slab_typesafe_by_rcu, 900 * 2)
+{
+	for (int i = 0; i < self->nr_procs; i++) {
+		pid_t pid_self;
+
+		self->pids_openers[i] = fork();
+		ASSERT_GE(self->pids_openers[i], 0);
+
+		if (self->pids_openers[i] != 0)
+			continue;
+
+		self->pids_openers[i] = getpid();
+		for (;;) {
+			for (int i = 0; i < self->max_fds; i++) {
+				char path[PATH_MAX];
+				int fd;
+
+				sprintf(path, "/slab_typesafe_by_rcu/file-%d-%d", self->pids_openers[i], i);
+				fd = open(path, O_CREAT | O_RDONLY | O_CLOEXEC, 0644);
+				if (fd < 0)
+					continue;
+			}
+
+			close_range(3, ~0U, 0);
+		}
+
+		exit(0);
+	}
+
+	for (int i = 0; i < self->nr_procs; i++) {
+		char path[PATH_MAX];
+
+		sprintf(path, "/proc/%d/fd/", self->pids_openers[i]);
+		self->fd_proc_pid[i] = open(path, O_DIRECTORY | O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(self->fd_proc_pid[i], 0);
+	}
+
+	for (int i = 0; i < self->nr_procs; i++) {
+		self->pids_getdents[i] = fork();
+		ASSERT_GE(self->pids_getdents[i], 0);
+
+		if (self->pids_getdents[i] != 0)
+			continue;
+
+		self->pids_getdents[i] = getpid();
+		for (;;) {
+			char ents[1024];
+			ssize_t nr_read;
+
+			/*
+			 * Concurrently read /proc/<pid>/fd/ which roughly does:
+			 *
+			 * f = fget_task_next(p, &fd);
+			 * if (!f)
+			 *	break;
+			 * data.mode = f->f_mode;
+			 * fput(f);
+			 *
+			 * Which means that it'll try to get a reference to a
+			 * file in another task's file descriptor table.
+			 *
+			 * Under heavy file load it is increasingly likely that
+			 * the other task will manage to close @file and @file
+			 * is being recycled due to SLAB_TYPEAFE_BY_RCU
+			 * concurrently. This will trigger various warnings in
+			 * the file reference counting code.
+			 */
+			do {
+				nr_read = syscall(SYS_getdents64, self->fd_proc_pid[i], ents, sizeof(ents));
+			} while (nr_read >= 0);
+
+			lseek(self->fd_proc_pid[i], 0, SEEK_SET);
+		}
+
+		exit(0);
+	}
+
+	ASSERT_EQ(clock_nanosleep(CLOCK_MONOTONIC, 0, &(struct timespec){ .tv_sec = 900 /* 15 min */ }, NULL), 0);
+
+	for (int i = 0; i < self->nr_procs; i++) {
+		kill(self->pids_openers[i], SIGKILL);
+		kill(self->pids_getdents[i], SIGKILL);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/fuse/.gitignore b/tools/testing/selftests/filesystems/fuse/.gitignore
new file mode 100644
index 000000000000..3e72e742d08e
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+fuse_mnt
+fusectl_test
diff --git a/tools/testing/selftests/filesystems/fuse/Makefile b/tools/testing/selftests/filesystems/fuse/Makefile
new file mode 100644
index 000000000000..612aad69a93a
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/Makefile
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := fusectl_test
+TEST_GEN_FILES := fuse_mnt
+
+include ../../lib.mk
+
+VAR_CFLAGS := $(shell pkg-config fuse --cflags 2>/dev/null)
+ifeq ($(VAR_CFLAGS),)
+VAR_CFLAGS := -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
+endif
+
+VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
+ifeq ($(VAR_LDLIBS),)
+VAR_LDLIBS := -lfuse -pthread
+endif
+
+$(OUTPUT)/fuse_mnt: CFLAGS += $(VAR_CFLAGS)
+$(OUTPUT)/fuse_mnt: LDLIBS += $(VAR_LDLIBS)
diff --git a/tools/testing/selftests/filesystems/fuse/fuse_mnt.c b/tools/testing/selftests/filesystems/fuse/fuse_mnt.c
new file mode 100644
index 000000000000..d12b17f30fad
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fuse_mnt.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fusectl test file-system
+ * Creates a simple FUSE filesystem with a single read-write file (/test)
+ */
+
+#define FUSE_USE_VERSION 26
+
+#include <fuse.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+
+static char *content;
+static size_t content_size = 0;
+static const char test_path[] = "/test";
+
+static int test_getattr(const char *path, struct stat *st)
+{
+	memset(st, 0, sizeof(*st));
+
+	if (!strcmp(path, "/")) {
+		st->st_mode = S_IFDIR | 0755;
+		st->st_nlink = 2;
+		return 0;
+	}
+
+	if (!strcmp(path, test_path)) {
+		st->st_mode = S_IFREG | 0664;
+		st->st_nlink = 1;
+		st->st_size = content_size;
+		return 0;
+	}
+
+	return -ENOENT;
+}
+
+static int test_readdir(const char *path, void *buf, fuse_fill_dir_t filler,
+			off_t offset, struct fuse_file_info *fi)
+{
+	if (strcmp(path, "/"))
+		return -ENOENT;
+
+	filler(buf, ".", NULL, 0);
+	filler(buf, "..", NULL, 0);
+	filler(buf, test_path + 1, NULL, 0);
+
+	return 0;
+}
+
+static int test_open(const char *path, struct fuse_file_info *fi)
+{
+	if (strcmp(path, test_path))
+		return -ENOENT;
+
+	return 0;
+}
+
+static int test_read(const char *path, char *buf, size_t size, off_t offset,
+		     struct fuse_file_info *fi)
+{
+	if (strcmp(path, test_path) != 0)
+		return -ENOENT;
+
+	if (!content || content_size == 0)
+		return 0;
+
+	if (offset >= content_size)
+		return 0;
+
+	if (offset + size > content_size)
+		size = content_size - offset;
+
+	memcpy(buf, content + offset, size);
+
+	return size;
+}
+
+static int test_write(const char *path, const char *buf, size_t size,
+		      off_t offset, struct fuse_file_info *fi)
+{
+	size_t new_size;
+
+	if (strcmp(path, test_path) != 0)
+		return -ENOENT;
+
+	if(offset > content_size)
+		return -EINVAL;
+
+	new_size = MAX(offset + size, content_size);
+
+	if (new_size > content_size)
+		content = realloc(content, new_size);
+
+	content_size = new_size;
+
+	if (!content)
+		return -ENOMEM;
+
+	memcpy(content + offset, buf, size);
+
+	return size;
+}
+
+static int test_truncate(const char *path, off_t size)
+{
+	if (strcmp(path, test_path) != 0)
+		return -ENOENT;
+
+	if (size == 0) {
+		free(content);
+		content = NULL;
+		content_size = 0;
+		return 0;
+	}
+
+	content = realloc(content, size);
+
+	if (!content)
+		return -ENOMEM;
+
+	if (size > content_size)
+		memset(content + content_size, 0, size - content_size);
+
+	content_size = size;
+	return 0;
+}
+
+static struct fuse_operations memfd_ops = {
+	.getattr = test_getattr,
+	.readdir = test_readdir,
+	.open = test_open,
+	.read = test_read,
+	.write = test_write,
+	.truncate = test_truncate,
+};
+
+int main(int argc, char *argv[])
+{
+	return fuse_main(argc, argv, &memfd_ops, NULL);
+}
diff --git a/tools/testing/selftests/filesystems/fuse/fusectl_test.c b/tools/testing/selftests/filesystems/fuse/fusectl_test.c
new file mode 100644
index 000000000000..0d1d012c35ed
--- /dev/null
+++ b/tools/testing/selftests/filesystems/fuse/fusectl_test.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2025 Chen Linxuan <chenlinxuan@uniontech.com>
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sched.h>
+#include <linux/limits.h>
+
+#include "kselftest_harness.h"
+
+#define FUSECTL_MOUNTPOINT "/sys/fs/fuse/connections"
+#define FUSE_MOUNTPOINT "/tmp/fuse_mnt_XXXXXX"
+#define FUSE_DEVICE "/dev/fuse"
+#define FUSECTL_TEST_VALUE "1"
+
+static void write_file(struct __test_metadata *const _metadata,
+		       const char *path, const char *val)
+{
+	int fd = open(path, O_WRONLY);
+	size_t len = strlen(val);
+
+	ASSERT_GE(fd, 0);
+	ASSERT_EQ(write(fd, val, len), len);
+	ASSERT_EQ(close(fd), 0);
+}
+
+FIXTURE(fusectl){
+	char fuse_mountpoint[sizeof(FUSE_MOUNTPOINT)];
+	int connection;
+};
+
+FIXTURE_SETUP(fusectl)
+{
+	const char *fuse_mnt_prog = "./fuse_mnt";
+	int status, pid;
+	struct stat statbuf;
+	uid_t uid = getuid();
+	gid_t gid = getgid();
+	char buf[32];
+
+	/* Setup userns */
+	ASSERT_EQ(unshare(CLONE_NEWNS|CLONE_NEWUSER), 0);
+	sprintf(buf, "0 %d 1", uid);
+	write_file(_metadata, "/proc/self/uid_map", buf);
+	write_file(_metadata, "/proc/self/setgroups", "deny");
+	sprintf(buf, "0 %d 1", gid);
+	write_file(_metadata, "/proc/self/gid_map", buf);
+	ASSERT_EQ(mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL), 0);
+
+	strcpy(self->fuse_mountpoint, FUSE_MOUNTPOINT);
+
+	if (!mkdtemp(self->fuse_mountpoint))
+		SKIP(return,
+		     "Failed to create FUSE mountpoint %s",
+		     strerror(errno));
+
+	if (access(FUSECTL_MOUNTPOINT, F_OK))
+		SKIP(return,
+		     "FUSE control filesystem not mounted");
+
+	pid = fork();
+	if (pid < 0)
+		SKIP(return,
+		     "Failed to fork FUSE daemon process: %s",
+		     strerror(errno));
+
+	if (pid == 0) {
+		execlp(fuse_mnt_prog, fuse_mnt_prog, self->fuse_mountpoint, NULL);
+		exit(errno);
+	}
+
+	waitpid(pid, &status, 0);
+	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+		SKIP(return,
+		     "Failed to start FUSE daemon %s",
+		     strerror(WEXITSTATUS(status)));
+	}
+
+	if (stat(self->fuse_mountpoint, &statbuf))
+		SKIP(return,
+		     "Failed to stat FUSE mountpoint %s",
+		     strerror(errno));
+
+	self->connection = statbuf.st_dev;
+}
+
+FIXTURE_TEARDOWN(fusectl)
+{
+	umount2(self->fuse_mountpoint, MNT_DETACH);
+	rmdir(self->fuse_mountpoint);
+}
+
+TEST_F(fusectl, abort)
+{
+	char path_buf[PATH_MAX];
+	int abort_fd, test_fd, ret;
+
+	sprintf(path_buf, "/sys/fs/fuse/connections/%d/abort", self->connection);
+
+	ASSERT_EQ(0, access(path_buf, F_OK));
+
+	abort_fd = open(path_buf, O_WRONLY);
+	ASSERT_GE(abort_fd, 0);
+
+	sprintf(path_buf, "%s/test", self->fuse_mountpoint);
+
+	test_fd = open(path_buf, O_RDWR);
+	ASSERT_GE(test_fd, 0);
+
+	ret = read(test_fd, path_buf, sizeof(path_buf));
+	ASSERT_EQ(ret, 0);
+
+	ret = write(test_fd, "test", sizeof("test"));
+	ASSERT_EQ(ret, sizeof("test"));
+
+	ret = lseek(test_fd, 0, SEEK_SET);
+	ASSERT_GE(ret, 0);
+
+	ret = write(abort_fd, FUSECTL_TEST_VALUE, sizeof(FUSECTL_TEST_VALUE));
+	ASSERT_GT(ret, 0);
+
+	close(abort_fd);
+
+	ret = read(test_fd, path_buf, sizeof(path_buf));
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, ENOTCONN);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/kernfs_test.c b/tools/testing/selftests/filesystems/kernfs_test.c
new file mode 100644
index 000000000000..84c2b910a60d
--- /dev/null
+++ b/tools/testing/selftests/filesystems/kernfs_test.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <sys/stat.h>
+#include <sys/xattr.h>
+
+#include "kselftest_harness.h"
+#include "wrappers.h"
+
+TEST(kernfs_listxattr)
+{
+	int fd;
+
+	/* Read-only file that can never have any extended attributes set. */
+	fd = open("/sys/kernel/warn_count", O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(fd, 0);
+	ASSERT_EQ(flistxattr(fd, NULL, 0), 0);
+	EXPECT_EQ(close(fd), 0);
+}
+
+TEST(kernfs_getxattr)
+{
+	int fd;
+	char buf[1];
+
+	/* Read-only file that can never have any extended attributes set. */
+	fd = open("/sys/kernel/warn_count", O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(fd, 0);
+	ASSERT_LT(fgetxattr(fd, "user.foo", buf, sizeof(buf)), 0);
+	ASSERT_EQ(errno, ENODATA);
+	EXPECT_EQ(close(fd), 0);
+}
+
+TEST_HARNESS_MAIN
+
diff --git a/tools/testing/selftests/filesystems/mount-notify/.gitignore b/tools/testing/selftests/filesystems/mount-notify/.gitignore
new file mode 100644
index 000000000000..124339ea7845
--- /dev/null
+++ b/tools/testing/selftests/filesystems/mount-notify/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/*_test
+/*_test_ns
diff --git a/tools/testing/selftests/filesystems/mount-notify/Makefile b/tools/testing/selftests/filesystems/mount-notify/Makefile
new file mode 100644
index 000000000000..836a4eb7be06
--- /dev/null
+++ b/tools/testing/selftests/filesystems/mount-notify/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
+LDLIBS += -lcap
+
+TEST_GEN_PROGS := mount-notify_test mount-notify_test_ns
+
+include ../../lib.mk
+
+$(OUTPUT)/mount-notify_test: ../utils.c
+$(OUTPUT)/mount-notify_test_ns: ../utils.c
diff --git a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
new file mode 100644
index 000000000000..6381af6a40e3
--- /dev/null
+++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test.c
@@ -0,0 +1,528 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2025 Miklos Szeredi <miklos@szeredi.hu>
+
+#define _GNU_SOURCE
+
+// Needed for linux/fanotify.h
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+#define __kernel_fsid_t __kernel_fsid_t
+
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/fanotify.h>
+
+#include "kselftest_harness.h"
+#include "../statmount/statmount.h"
+#include "../utils.h"
+
+static const char root_mntpoint_templ[] = "/tmp/mount-notify_test_root.XXXXXX";
+
+static const int mark_cmds[] = {
+	FAN_MARK_ADD,
+	FAN_MARK_REMOVE,
+	FAN_MARK_FLUSH
+};
+
+#define NUM_FAN_FDS ARRAY_SIZE(mark_cmds)
+
+FIXTURE(fanotify) {
+	int fan_fd[NUM_FAN_FDS];
+	char buf[256];
+	unsigned int rem;
+	void *next;
+	char root_mntpoint[sizeof(root_mntpoint_templ)];
+	int orig_root;
+	int ns_fd;
+	uint64_t root_id;
+};
+
+FIXTURE_SETUP(fanotify)
+{
+	int i, ret;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	self->ns_fd = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(self->ns_fd, 0);
+
+	ASSERT_EQ(mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL), 0);
+
+	strcpy(self->root_mntpoint, root_mntpoint_templ);
+	ASSERT_NE(mkdtemp(self->root_mntpoint), NULL);
+
+	self->orig_root = open("/", O_PATH | O_CLOEXEC);
+	ASSERT_GE(self->orig_root, 0);
+
+	ASSERT_EQ(mount("tmpfs", self->root_mntpoint, "tmpfs", 0, NULL), 0);
+
+	ASSERT_EQ(chroot(self->root_mntpoint), 0);
+
+	ASSERT_EQ(chdir("/"), 0);
+
+	ASSERT_EQ(mkdir("a", 0700), 0);
+
+	ASSERT_EQ(mkdir("b", 0700), 0);
+
+	self->root_id = get_unique_mnt_id("/");
+	ASSERT_NE(self->root_id, 0);
+
+	for (i = 0; i < NUM_FAN_FDS; i++) {
+		self->fan_fd[i] = fanotify_init(FAN_REPORT_MNT | FAN_NONBLOCK,
+						0);
+		ASSERT_GE(self->fan_fd[i], 0);
+		ret = fanotify_mark(self->fan_fd[i], FAN_MARK_ADD |
+				    FAN_MARK_MNTNS,
+				    FAN_MNT_ATTACH | FAN_MNT_DETACH,
+				    self->ns_fd, NULL);
+		ASSERT_EQ(ret, 0);
+		// On fd[0] we do an extra ADD that changes nothing.
+		// On fd[1]/fd[2] we REMOVE/FLUSH which removes the mark.
+		ret = fanotify_mark(self->fan_fd[i], mark_cmds[i] |
+				    FAN_MARK_MNTNS,
+				    FAN_MNT_ATTACH | FAN_MNT_DETACH,
+				    self->ns_fd, NULL);
+		ASSERT_EQ(ret, 0);
+	}
+
+	self->rem = 0;
+}
+
+FIXTURE_TEARDOWN(fanotify)
+{
+	int i;
+
+	ASSERT_EQ(self->rem, 0);
+	for (i = 0; i < NUM_FAN_FDS; i++)
+		close(self->fan_fd[i]);
+
+	ASSERT_EQ(fchdir(self->orig_root), 0);
+
+	ASSERT_EQ(chroot("."), 0);
+
+	EXPECT_EQ(umount2(self->root_mntpoint, MNT_DETACH), 0);
+	EXPECT_EQ(chdir(self->root_mntpoint), 0);
+	EXPECT_EQ(chdir("/"), 0);
+	EXPECT_EQ(rmdir(self->root_mntpoint), 0);
+}
+
+static uint64_t expect_notify(struct __test_metadata *const _metadata,
+			      FIXTURE_DATA(fanotify) *self,
+			      uint64_t *mask)
+{
+	struct fanotify_event_metadata *meta;
+	struct fanotify_event_info_mnt *mnt;
+	unsigned int thislen;
+
+	if (!self->rem) {
+		ssize_t len;
+		int i;
+
+		for (i = NUM_FAN_FDS - 1; i >= 0; i--) {
+			len = read(self->fan_fd[i], self->buf,
+				   sizeof(self->buf));
+			if (i > 0) {
+				// Groups 1,2 should get EAGAIN
+				ASSERT_EQ(len, -1);
+				ASSERT_EQ(errno, EAGAIN);
+			} else {
+				// Group 0 should get events
+				ASSERT_GT(len, 0);
+			}
+		}
+
+		self->rem = len;
+		self->next = (void *) self->buf;
+	}
+
+	meta = self->next;
+	ASSERT_TRUE(FAN_EVENT_OK(meta, self->rem));
+
+	thislen = meta->event_len;
+	self->rem -= thislen;
+	self->next += thislen;
+
+	*mask = meta->mask;
+	thislen -= sizeof(*meta);
+
+	mnt = ((void *) meta) + meta->event_len - thislen;
+
+	ASSERT_EQ(thislen, sizeof(*mnt));
+
+	return mnt->mnt_id;
+}
+
+static void expect_notify_n(struct __test_metadata *const _metadata,
+				 FIXTURE_DATA(fanotify) *self,
+				 unsigned int n, uint64_t mask[], uint64_t mnts[])
+{
+	unsigned int i;
+
+	for (i = 0; i < n; i++)
+		mnts[i] = expect_notify(_metadata, self, &mask[i]);
+}
+
+static uint64_t expect_notify_mask(struct __test_metadata *const _metadata,
+				   FIXTURE_DATA(fanotify) *self,
+				   uint64_t expect_mask)
+{
+	uint64_t mntid, mask;
+
+	mntid = expect_notify(_metadata, self, &mask);
+	ASSERT_EQ(expect_mask, mask);
+
+	return mntid;
+}
+
+
+static void expect_notify_mask_n(struct __test_metadata *const _metadata,
+				 FIXTURE_DATA(fanotify) *self,
+				 uint64_t mask, unsigned int n, uint64_t mnts[])
+{
+	unsigned int i;
+
+	for (i = 0; i < n; i++)
+		mnts[i] = expect_notify_mask(_metadata, self, mask);
+}
+
+static void verify_mount_ids(struct __test_metadata *const _metadata,
+			     const uint64_t list1[], const uint64_t list2[],
+			     size_t num)
+{
+	unsigned int i, j;
+
+	// Check that neither list has any duplicates
+	for (i = 0; i < num; i++) {
+		for (j = 0; j < num; j++) {
+			if (i != j) {
+				ASSERT_NE(list1[i], list1[j]);
+				ASSERT_NE(list2[i], list2[j]);
+			}
+		}
+	}
+	// Check that all list1 memebers can be found in list2. Together with
+	// the above it means that the list1 and list2 represent the same sets.
+	for (i = 0; i < num; i++) {
+		for (j = 0; j < num; j++) {
+			if (list1[i] == list2[j])
+				break;
+		}
+		ASSERT_NE(j, num);
+	}
+}
+
+static void check_mounted(struct __test_metadata *const _metadata,
+			  const uint64_t mnts[], size_t num)
+{
+	ssize_t ret;
+	uint64_t *list;
+
+	list = malloc((num + 1) * sizeof(list[0]));
+	ASSERT_NE(list, NULL);
+
+	ret = listmount(LSMT_ROOT, 0, 0, list, num + 1, 0);
+	ASSERT_EQ(ret, num);
+
+	verify_mount_ids(_metadata, mnts, list, num);
+
+	free(list);
+}
+
+static void setup_mount_tree(struct __test_metadata *const _metadata,
+			    int log2_num)
+{
+	int ret, i;
+
+	ret = mount("", "/", NULL, MS_SHARED, NULL);
+	ASSERT_EQ(ret, 0);
+
+	for (i = 0; i < log2_num; i++) {
+		ret = mount("/", "/", NULL, MS_BIND, NULL);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+TEST_F(fanotify, bind)
+{
+	int ret;
+	uint64_t mnts[2] = { self->root_id };
+
+	ret = mount("/", "/", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	// Cleanup
+	uint64_t detach_id;
+	ret = umount("/");
+	ASSERT_EQ(ret, 0);
+
+	detach_id = expect_notify_mask(_metadata, self, FAN_MNT_DETACH);
+	ASSERT_EQ(detach_id, mnts[1]);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, move)
+{
+	int ret;
+	uint64_t mnts[2] = { self->root_id };
+	uint64_t move_id;
+
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	ret = move_mount(AT_FDCWD, "/a", AT_FDCWD, "/b", 0);
+	ASSERT_EQ(ret, 0);
+
+	move_id = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH | FAN_MNT_DETACH);
+	ASSERT_EQ(move_id, mnts[1]);
+
+	// Cleanup
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, propagate)
+{
+	const unsigned int log2_num = 4;
+	const unsigned int num = (1 << log2_num);
+	uint64_t mnts[num];
+
+	setup_mount_tree(_metadata, log2_num);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, num - 1, mnts + 1);
+
+	mnts[0] = self->root_id;
+	check_mounted(_metadata, mnts, num);
+
+	// Cleanup
+	int ret;
+	uint64_t mnts2[num];
+	ret = umount2("/", MNT_DETACH);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/", NULL, MS_PRIVATE, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts2[0] = self->root_id;
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, num - 1, mnts2 + 1);
+	verify_mount_ids(_metadata, mnts, mnts2, num);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, fsmount)
+{
+	int ret, fs, mnt;
+	uint64_t mnts[2] = { self->root_id };
+
+	fs = fsopen("tmpfs", 0);
+	ASSERT_GE(fs, 0);
+
+        ret = fsconfig(fs, FSCONFIG_CMD_CREATE, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+
+        mnt = fsmount(fs, 0, 0);
+	ASSERT_GE(mnt, 0);
+
+        close(fs);
+
+	ret = move_mount(mnt, "", AT_FDCWD, "/a", MOVE_MOUNT_F_EMPTY_PATH);
+	ASSERT_EQ(ret, 0);
+
+        close(mnt);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	// Cleanup
+	uint64_t detach_id;
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	detach_id = expect_notify_mask(_metadata, self, FAN_MNT_DETACH);
+	ASSERT_EQ(detach_id, mnts[1]);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, reparent)
+{
+	uint64_t mnts[6] = { self->root_id };
+	uint64_t dmnts[3];
+	uint64_t masks[3];
+	unsigned int i;
+	int ret;
+
+	// Create setup with a[1] -> b[2] propagation
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/a", NULL, MS_SHARED, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/a", "/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/b", NULL, MS_SLAVE, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 1);
+
+	check_mounted(_metadata, mnts, 3);
+
+	// Mount on a[3], which is propagated to b[4]
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 3);
+
+	check_mounted(_metadata, mnts, 5);
+
+	// Mount on b[5], not propagated
+	ret = mount("/", "/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[5] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+
+	check_mounted(_metadata, mnts, 6);
+
+	// Umount a[3], which is propagated to b[4], but not b[5]
+	// This will result in b[5] "falling" on b[2]
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_n(_metadata, self, 3, masks, dmnts);
+	verify_mount_ids(_metadata, mnts + 3, dmnts, 3);
+
+	for (i = 0; i < 3; i++) {
+		if (dmnts[i] == mnts[5]) {
+			ASSERT_EQ(masks[i], FAN_MNT_ATTACH | FAN_MNT_DETACH);
+		} else {
+			ASSERT_EQ(masks[i], FAN_MNT_DETACH);
+		}
+	}
+
+	mnts[3] = mnts[5];
+	check_mounted(_metadata, mnts, 4);
+
+	// Cleanup
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, 3, dmnts);
+	verify_mount_ids(_metadata, mnts + 1, dmnts, 3);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, rmdir)
+{
+	uint64_t mnts[3] = { self->root_id };
+	int ret;
+
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/", "/a/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 1);
+
+	check_mounted(_metadata, mnts, 3);
+
+	ret = chdir("/a");
+	ASSERT_EQ(ret, 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret == 0) {
+		chdir("/");
+		unshare(CLONE_NEWNS);
+		mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL);
+		umount2("/a", MNT_DETACH);
+		// This triggers a detach in the other namespace
+		rmdir("/a");
+		exit(0);
+	}
+	wait(NULL);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, 2, mnts + 1);
+	check_mounted(_metadata, mnts, 1);
+
+	// Cleanup
+	ret = chdir("/");
+	ASSERT_EQ(ret, 0);
+}
+
+TEST_F(fanotify, pivot_root)
+{
+	uint64_t mnts[3] = { self->root_id };
+	uint64_t mnts2[3];
+	int ret;
+
+	ret = mount("tmpfs", "/a", "tmpfs", 0, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[2] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+
+	ret = mkdir("/a/new", 0700);
+	ASSERT_EQ(ret, 0);
+
+	ret = mkdir("/a/old", 0700);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/a", "/a/new", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	check_mounted(_metadata, mnts, 3);
+
+	ret = syscall(SYS_pivot_root, "/a/new", "/a/new/old");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH | FAN_MNT_DETACH, 2, mnts2);
+	verify_mount_ids(_metadata, mnts, mnts2, 2);
+	check_mounted(_metadata, mnts, 3);
+
+	// Cleanup
+	ret = syscall(SYS_pivot_root, "/old", "/old/a/new");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a/new");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
new file mode 100644
index 000000000000..320ee25dc8a5
--- /dev/null
+++ b/tools/testing/selftests/filesystems/mount-notify/mount-notify_test_ns.c
@@ -0,0 +1,555 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2025 Miklos Szeredi <miklos@szeredi.hu>
+
+#define _GNU_SOURCE
+
+// Needed for linux/fanotify.h
+typedef struct {
+	int	val[2];
+} __kernel_fsid_t;
+#define __kernel_fsid_t __kernel_fsid_t
+
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/fanotify.h>
+
+#include "kselftest_harness.h"
+#include "../statmount/statmount.h"
+#include "../utils.h"
+
+static const char root_mntpoint_templ[] = "/tmp/mount-notify_test_root.XXXXXX";
+
+static const int mark_types[] = {
+	FAN_MARK_FILESYSTEM,
+	FAN_MARK_MOUNT,
+	FAN_MARK_INODE
+};
+
+static const int mark_cmds[] = {
+	FAN_MARK_ADD,
+	FAN_MARK_REMOVE,
+	FAN_MARK_FLUSH
+};
+
+#define NUM_FAN_FDS ARRAY_SIZE(mark_cmds)
+
+FIXTURE(fanotify) {
+	int fan_fd[NUM_FAN_FDS];
+	char buf[256];
+	unsigned int rem;
+	void *next;
+	char root_mntpoint[sizeof(root_mntpoint_templ)];
+	int orig_root;
+	int orig_ns_fd;
+	int ns_fd;
+	uint64_t root_id;
+};
+
+FIXTURE_SETUP(fanotify)
+{
+	int i, ret;
+
+	self->orig_ns_fd = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(self->orig_ns_fd, 0);
+
+	ret = setup_userns();
+	ASSERT_EQ(ret, 0);
+
+	self->ns_fd = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(self->ns_fd, 0);
+
+	strcpy(self->root_mntpoint, root_mntpoint_templ);
+	ASSERT_NE(mkdtemp(self->root_mntpoint), NULL);
+
+	self->orig_root = open("/", O_PATH | O_CLOEXEC);
+	ASSERT_GE(self->orig_root, 0);
+
+	ASSERT_EQ(mount("tmpfs", self->root_mntpoint, "tmpfs", 0, NULL), 0);
+
+	ASSERT_EQ(chroot(self->root_mntpoint), 0);
+
+	ASSERT_EQ(chdir("/"), 0);
+
+	ASSERT_EQ(mkdir("a", 0700), 0);
+
+	ASSERT_EQ(mkdir("b", 0700), 0);
+
+	self->root_id = get_unique_mnt_id("/");
+	ASSERT_NE(self->root_id, 0);
+
+	for (i = 0; i < NUM_FAN_FDS; i++) {
+		int fan_fd = fanotify_init(FAN_REPORT_FID, 0);
+		// Verify that watching tmpfs mounted inside userns is allowed
+		ret = fanotify_mark(fan_fd, FAN_MARK_ADD | mark_types[i],
+				    FAN_OPEN, AT_FDCWD, "/");
+		ASSERT_EQ(ret, 0);
+		// ...but watching entire orig root filesystem is not allowed
+		ret = fanotify_mark(fan_fd, FAN_MARK_ADD | FAN_MARK_FILESYSTEM,
+				    FAN_OPEN, self->orig_root, ".");
+		ASSERT_NE(ret, 0);
+		close(fan_fd);
+
+		self->fan_fd[i] = fanotify_init(FAN_REPORT_MNT | FAN_NONBLOCK,
+						0);
+		ASSERT_GE(self->fan_fd[i], 0);
+		// Verify that watching mntns where group was created is allowed
+		ret = fanotify_mark(self->fan_fd[i], FAN_MARK_ADD |
+				    FAN_MARK_MNTNS,
+				    FAN_MNT_ATTACH | FAN_MNT_DETACH,
+				    self->ns_fd, NULL);
+		ASSERT_EQ(ret, 0);
+		// ...but watching orig mntns is not allowed
+		ret = fanotify_mark(self->fan_fd[i], FAN_MARK_ADD |
+				    FAN_MARK_MNTNS,
+				    FAN_MNT_ATTACH | FAN_MNT_DETACH,
+				    self->orig_ns_fd, NULL);
+		ASSERT_NE(ret, 0);
+		// On fd[0] we do an extra ADD that changes nothing.
+		// On fd[1]/fd[2] we REMOVE/FLUSH which removes the mark.
+		ret = fanotify_mark(self->fan_fd[i], mark_cmds[i] |
+				    FAN_MARK_MNTNS,
+				    FAN_MNT_ATTACH | FAN_MNT_DETACH,
+				    self->ns_fd, NULL);
+		ASSERT_EQ(ret, 0);
+	}
+
+	self->rem = 0;
+}
+
+FIXTURE_TEARDOWN(fanotify)
+{
+	int i;
+
+	ASSERT_EQ(self->rem, 0);
+	for (i = 0; i < NUM_FAN_FDS; i++)
+		close(self->fan_fd[i]);
+
+	ASSERT_EQ(fchdir(self->orig_root), 0);
+
+	ASSERT_EQ(chroot("."), 0);
+
+	EXPECT_EQ(umount2(self->root_mntpoint, MNT_DETACH), 0);
+	EXPECT_EQ(chdir(self->root_mntpoint), 0);
+	EXPECT_EQ(chdir("/"), 0);
+	EXPECT_EQ(rmdir(self->root_mntpoint), 0);
+}
+
+static uint64_t expect_notify(struct __test_metadata *const _metadata,
+			      FIXTURE_DATA(fanotify) *self,
+			      uint64_t *mask)
+{
+	struct fanotify_event_metadata *meta;
+	struct fanotify_event_info_mnt *mnt;
+	unsigned int thislen;
+
+	if (!self->rem) {
+		ssize_t len;
+		int i;
+
+		for (i = NUM_FAN_FDS - 1; i >= 0; i--) {
+			len = read(self->fan_fd[i], self->buf,
+				   sizeof(self->buf));
+			if (i > 0) {
+				// Groups 1,2 should get EAGAIN
+				ASSERT_EQ(len, -1);
+				ASSERT_EQ(errno, EAGAIN);
+			} else {
+				// Group 0 should get events
+				ASSERT_GT(len, 0);
+			}
+		}
+
+		self->rem = len;
+		self->next = (void *) self->buf;
+	}
+
+	meta = self->next;
+	ASSERT_TRUE(FAN_EVENT_OK(meta, self->rem));
+
+	thislen = meta->event_len;
+	self->rem -= thislen;
+	self->next += thislen;
+
+	*mask = meta->mask;
+	thislen -= sizeof(*meta);
+
+	mnt = ((void *) meta) + meta->event_len - thislen;
+
+	ASSERT_EQ(thislen, sizeof(*mnt));
+
+	return mnt->mnt_id;
+}
+
+static void expect_notify_n(struct __test_metadata *const _metadata,
+				 FIXTURE_DATA(fanotify) *self,
+				 unsigned int n, uint64_t mask[], uint64_t mnts[])
+{
+	unsigned int i;
+
+	for (i = 0; i < n; i++)
+		mnts[i] = expect_notify(_metadata, self, &mask[i]);
+}
+
+static uint64_t expect_notify_mask(struct __test_metadata *const _metadata,
+				   FIXTURE_DATA(fanotify) *self,
+				   uint64_t expect_mask)
+{
+	uint64_t mntid, mask;
+
+	mntid = expect_notify(_metadata, self, &mask);
+	ASSERT_EQ(expect_mask, mask);
+
+	return mntid;
+}
+
+
+static void expect_notify_mask_n(struct __test_metadata *const _metadata,
+				 FIXTURE_DATA(fanotify) *self,
+				 uint64_t mask, unsigned int n, uint64_t mnts[])
+{
+	unsigned int i;
+
+	for (i = 0; i < n; i++)
+		mnts[i] = expect_notify_mask(_metadata, self, mask);
+}
+
+static void verify_mount_ids(struct __test_metadata *const _metadata,
+			     const uint64_t list1[], const uint64_t list2[],
+			     size_t num)
+{
+	unsigned int i, j;
+
+	// Check that neither list has any duplicates
+	for (i = 0; i < num; i++) {
+		for (j = 0; j < num; j++) {
+			if (i != j) {
+				ASSERT_NE(list1[i], list1[j]);
+				ASSERT_NE(list2[i], list2[j]);
+			}
+		}
+	}
+	// Check that all list1 memebers can be found in list2. Together with
+	// the above it means that the list1 and list2 represent the same sets.
+	for (i = 0; i < num; i++) {
+		for (j = 0; j < num; j++) {
+			if (list1[i] == list2[j])
+				break;
+		}
+		ASSERT_NE(j, num);
+	}
+}
+
+static void check_mounted(struct __test_metadata *const _metadata,
+			  const uint64_t mnts[], size_t num)
+{
+	ssize_t ret;
+	uint64_t *list;
+
+	list = malloc((num + 1) * sizeof(list[0]));
+	ASSERT_NE(list, NULL);
+
+	ret = listmount(LSMT_ROOT, 0, 0, list, num + 1, 0);
+	ASSERT_EQ(ret, num);
+
+	verify_mount_ids(_metadata, mnts, list, num);
+
+	free(list);
+}
+
+static void setup_mount_tree(struct __test_metadata *const _metadata,
+			    int log2_num)
+{
+	int ret, i;
+
+	ret = mount("", "/", NULL, MS_SHARED, NULL);
+	ASSERT_EQ(ret, 0);
+
+	for (i = 0; i < log2_num; i++) {
+		ret = mount("/", "/", NULL, MS_BIND, NULL);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+TEST_F(fanotify, bind)
+{
+	int ret;
+	uint64_t mnts[2] = { self->root_id };
+
+	ret = mount("/", "/", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	// Cleanup
+	uint64_t detach_id;
+	ret = umount("/");
+	ASSERT_EQ(ret, 0);
+
+	detach_id = expect_notify_mask(_metadata, self, FAN_MNT_DETACH);
+	ASSERT_EQ(detach_id, mnts[1]);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, move)
+{
+	int ret;
+	uint64_t mnts[2] = { self->root_id };
+	uint64_t move_id;
+
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	ret = move_mount(AT_FDCWD, "/a", AT_FDCWD, "/b", 0);
+	ASSERT_EQ(ret, 0);
+
+	move_id = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH | FAN_MNT_DETACH);
+	ASSERT_EQ(move_id, mnts[1]);
+
+	// Cleanup
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, propagate)
+{
+	const unsigned int log2_num = 4;
+	const unsigned int num = (1 << log2_num);
+	uint64_t mnts[num];
+
+	setup_mount_tree(_metadata, log2_num);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, num - 1, mnts + 1);
+
+	mnts[0] = self->root_id;
+	check_mounted(_metadata, mnts, num);
+
+	// Cleanup
+	int ret;
+	uint64_t mnts2[num];
+	ret = umount2("/", MNT_DETACH);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/", NULL, MS_PRIVATE, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts2[0] = self->root_id;
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, num - 1, mnts2 + 1);
+	verify_mount_ids(_metadata, mnts, mnts2, num);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, fsmount)
+{
+	int ret, fs, mnt;
+	uint64_t mnts[2] = { self->root_id };
+
+	fs = fsopen("tmpfs", 0);
+	ASSERT_GE(fs, 0);
+
+	ret = fsconfig(fs, FSCONFIG_CMD_CREATE, 0, 0, 0);
+	ASSERT_EQ(ret, 0);
+
+	mnt = fsmount(fs, 0, 0);
+	ASSERT_GE(mnt, 0);
+
+	close(fs);
+
+	ret = move_mount(mnt, "", AT_FDCWD, "/a", MOVE_MOUNT_F_EMPTY_PATH);
+	ASSERT_EQ(ret, 0);
+
+	close(mnt);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	ASSERT_NE(mnts[0], mnts[1]);
+
+	check_mounted(_metadata, mnts, 2);
+
+	// Cleanup
+	uint64_t detach_id;
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	detach_id = expect_notify_mask(_metadata, self, FAN_MNT_DETACH);
+	ASSERT_EQ(detach_id, mnts[1]);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, reparent)
+{
+	uint64_t mnts[6] = { self->root_id };
+	uint64_t dmnts[3];
+	uint64_t masks[3];
+	unsigned int i;
+	int ret;
+
+	// Create setup with a[1] -> b[2] propagation
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/a", NULL, MS_SHARED, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/a", "/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("", "/b", NULL, MS_SLAVE, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 1);
+
+	check_mounted(_metadata, mnts, 3);
+
+	// Mount on a[3], which is propagated to b[4]
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 3);
+
+	check_mounted(_metadata, mnts, 5);
+
+	// Mount on b[5], not propagated
+	ret = mount("/", "/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[5] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+
+	check_mounted(_metadata, mnts, 6);
+
+	// Umount a[3], which is propagated to b[4], but not b[5]
+	// This will result in b[5] "falling" on b[2]
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_n(_metadata, self, 3, masks, dmnts);
+	verify_mount_ids(_metadata, mnts + 3, dmnts, 3);
+
+	for (i = 0; i < 3; i++) {
+		if (dmnts[i] == mnts[5]) {
+			ASSERT_EQ(masks[i], FAN_MNT_ATTACH | FAN_MNT_DETACH);
+		} else {
+			ASSERT_EQ(masks[i], FAN_MNT_DETACH);
+		}
+	}
+
+	mnts[3] = mnts[5];
+	check_mounted(_metadata, mnts, 4);
+
+	// Cleanup
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/b");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, 3, dmnts);
+	verify_mount_ids(_metadata, mnts + 1, dmnts, 3);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_F(fanotify, rmdir)
+{
+	uint64_t mnts[3] = { self->root_id };
+	int ret;
+
+	ret = mount("/", "/a", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/", "/a/b", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH, 2, mnts + 1);
+
+	check_mounted(_metadata, mnts, 3);
+
+	ret = chdir("/a");
+	ASSERT_EQ(ret, 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret == 0) {
+		chdir("/");
+		unshare(CLONE_NEWNS);
+		mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL);
+		umount2("/a", MNT_DETACH);
+		// This triggers a detach in the other namespace
+		rmdir("/a");
+		exit(0);
+	}
+	wait(NULL);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_DETACH, 2, mnts + 1);
+	check_mounted(_metadata, mnts, 1);
+
+	// Cleanup
+	ret = chdir("/");
+	ASSERT_EQ(ret, 0);
+}
+
+TEST_F(fanotify, pivot_root)
+{
+	uint64_t mnts[3] = { self->root_id };
+	uint64_t mnts2[3];
+	int ret;
+
+	ret = mount("tmpfs", "/a", "tmpfs", 0, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[2] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+
+	ret = mkdir("/a/new", 0700);
+	ASSERT_EQ(ret, 0);
+
+	ret = mkdir("/a/old", 0700);
+	ASSERT_EQ(ret, 0);
+
+	ret = mount("/a", "/a/new", NULL, MS_BIND, NULL);
+	ASSERT_EQ(ret, 0);
+
+	mnts[1] = expect_notify_mask(_metadata, self, FAN_MNT_ATTACH);
+	check_mounted(_metadata, mnts, 3);
+
+	ret = syscall(SYS_pivot_root, "/a/new", "/a/new/old");
+	ASSERT_EQ(ret, 0);
+
+	expect_notify_mask_n(_metadata, self, FAN_MNT_ATTACH | FAN_MNT_DETACH, 2, mnts2);
+	verify_mount_ids(_metadata, mnts, mnts2, 2);
+	check_mounted(_metadata, mnts, 3);
+
+	// Cleanup
+	ret = syscall(SYS_pivot_root, "/old", "/old/a/new");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a/new");
+	ASSERT_EQ(ret, 0);
+
+	ret = umount("/a");
+	ASSERT_EQ(ret, 0);
+
+	check_mounted(_metadata, mnts, 1);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/nsfs/.gitignore b/tools/testing/selftests/filesystems/nsfs/.gitignore
new file mode 100644
index 000000000000..92a8249006d1
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+owner
+pidns
+iterate_mntns
diff --git a/tools/testing/selftests/filesystems/nsfs/Makefile b/tools/testing/selftests/filesystems/nsfs/Makefile
new file mode 100644
index 000000000000..231aaa7dfd95
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+TEST_GEN_PROGS := owner pidns iterate_mntns
+
+CFLAGS := -Wall -Werror
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/filesystems/nsfs/config b/tools/testing/selftests/filesystems/nsfs/config
new file mode 100644
index 000000000000..598d0a225fc9
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/config
@@ -0,0 +1,3 @@
+CONFIG_USER_NS=y
+CONFIG_UTS_NS=y
+CONFIG_PID_NS=y
diff --git a/tools/testing/selftests/filesystems/nsfs/iterate_mntns.c b/tools/testing/selftests/filesystems/nsfs/iterate_mntns.c
new file mode 100644
index 000000000000..61e55dfbf121
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/iterate_mntns.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2024 Christian Brauner <brauner@kernel.org>
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <linux/auto_dev-ioctl.h>
+#include <linux/errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+#define MNT_NS_COUNT 11
+#define MNT_NS_LAST_INDEX 10
+
+struct mnt_ns_info {
+	__u32 size;
+	__u32 nr_mounts;
+	__u64 mnt_ns_id;
+};
+
+#define MNT_NS_INFO_SIZE_VER0 16 /* size of first published struct */
+
+/* Get information about namespace. */
+#define NS_MNT_GET_INFO _IOR(0xb7, 10, struct mnt_ns_info)
+/* Get next namespace. */
+#define NS_MNT_GET_NEXT _IOR(0xb7, 11, struct mnt_ns_info)
+/* Get previous namespace. */
+#define NS_MNT_GET_PREV _IOR(0xb7, 12, struct mnt_ns_info)
+
+FIXTURE(iterate_mount_namespaces) {
+	int fd_mnt_ns[MNT_NS_COUNT];
+	__u64 mnt_ns_id[MNT_NS_COUNT];
+};
+
+FIXTURE_SETUP(iterate_mount_namespaces)
+{
+	for (int i = 0; i < MNT_NS_COUNT; i++)
+		self->fd_mnt_ns[i] = -EBADF;
+
+	/*
+	 * Creating a new user namespace let's us guarantee that we only see
+	 * mount namespaces that we did actually create.
+	 */
+	ASSERT_EQ(unshare(CLONE_NEWUSER), 0);
+
+	for (int i = 0; i < MNT_NS_COUNT; i++) {
+		struct mnt_ns_info info = {};
+
+		ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+		self->fd_mnt_ns[i] = open("/proc/self/ns/mnt", O_RDONLY | O_CLOEXEC);
+		ASSERT_GE(self->fd_mnt_ns[i], 0);
+		ASSERT_EQ(ioctl(self->fd_mnt_ns[i], NS_MNT_GET_INFO, &info), 0);
+		self->mnt_ns_id[i] = info.mnt_ns_id;
+	}
+}
+
+FIXTURE_TEARDOWN(iterate_mount_namespaces)
+{
+	for (int i = 0; i < MNT_NS_COUNT; i++) {
+		if (self->fd_mnt_ns[i] < 0)
+			continue;
+		ASSERT_EQ(close(self->fd_mnt_ns[i]), 0);
+	}
+}
+
+TEST_F(iterate_mount_namespaces, iterate_all_forward)
+{
+	int fd_mnt_ns_cur, count = 0;
+
+	fd_mnt_ns_cur = fcntl(self->fd_mnt_ns[0], F_DUPFD_CLOEXEC);
+	ASSERT_GE(fd_mnt_ns_cur, 0);
+
+	for (;; count++) {
+		struct mnt_ns_info info = {};
+		int fd_mnt_ns_next;
+
+		fd_mnt_ns_next = ioctl(fd_mnt_ns_cur, NS_MNT_GET_NEXT, &info);
+		if (fd_mnt_ns_next < 0 && errno == ENOENT)
+			break;
+		ASSERT_GE(fd_mnt_ns_next, 0);
+		ASSERT_EQ(close(fd_mnt_ns_cur), 0);
+		fd_mnt_ns_cur = fd_mnt_ns_next;
+	}
+	ASSERT_EQ(count, MNT_NS_LAST_INDEX);
+}
+
+TEST_F(iterate_mount_namespaces, iterate_all_backwards)
+{
+	int fd_mnt_ns_cur, count = 0;
+
+	fd_mnt_ns_cur = fcntl(self->fd_mnt_ns[MNT_NS_LAST_INDEX], F_DUPFD_CLOEXEC);
+	ASSERT_GE(fd_mnt_ns_cur, 0);
+
+	for (;; count++) {
+		struct mnt_ns_info info = {};
+		int fd_mnt_ns_prev;
+
+		fd_mnt_ns_prev = ioctl(fd_mnt_ns_cur, NS_MNT_GET_PREV, &info);
+		if (fd_mnt_ns_prev < 0 && errno == ENOENT)
+			break;
+		ASSERT_GE(fd_mnt_ns_prev, 0);
+		ASSERT_EQ(close(fd_mnt_ns_cur), 0);
+		fd_mnt_ns_cur = fd_mnt_ns_prev;
+	}
+	ASSERT_EQ(count, MNT_NS_LAST_INDEX);
+}
+
+TEST_F(iterate_mount_namespaces, iterate_forward)
+{
+	int fd_mnt_ns_cur;
+
+	ASSERT_EQ(setns(self->fd_mnt_ns[0], CLONE_NEWNS), 0);
+
+	fd_mnt_ns_cur = self->fd_mnt_ns[0];
+	for (int i = 1; i < MNT_NS_COUNT; i++) {
+		struct mnt_ns_info info = {};
+		int fd_mnt_ns_next;
+
+		fd_mnt_ns_next = ioctl(fd_mnt_ns_cur, NS_MNT_GET_NEXT, &info);
+		ASSERT_GE(fd_mnt_ns_next, 0);
+		ASSERT_EQ(close(fd_mnt_ns_cur), 0);
+		fd_mnt_ns_cur = fd_mnt_ns_next;
+		ASSERT_EQ(info.mnt_ns_id, self->mnt_ns_id[i]);
+	}
+}
+
+TEST_F(iterate_mount_namespaces, iterate_backward)
+{
+	int fd_mnt_ns_cur;
+
+	ASSERT_EQ(setns(self->fd_mnt_ns[MNT_NS_LAST_INDEX], CLONE_NEWNS), 0);
+
+	fd_mnt_ns_cur = self->fd_mnt_ns[MNT_NS_LAST_INDEX];
+	for (int i = MNT_NS_LAST_INDEX - 1; i >= 0; i--) {
+		struct mnt_ns_info info = {};
+		int fd_mnt_ns_prev;
+
+		fd_mnt_ns_prev = ioctl(fd_mnt_ns_cur, NS_MNT_GET_PREV, &info);
+		ASSERT_GE(fd_mnt_ns_prev, 0);
+		ASSERT_EQ(close(fd_mnt_ns_cur), 0);
+		fd_mnt_ns_cur = fd_mnt_ns_prev;
+		ASSERT_EQ(info.mnt_ns_id, self->mnt_ns_id[i]);
+	}
+}
+
+TEST_F(iterate_mount_namespaces, nfs_valid_ioctl)
+{
+	ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_OPENMOUNT, NULL), 0);
+	ASSERT_EQ(errno, ENOTTY);
+
+	ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_CLOSEMOUNT, NULL), 0);
+	ASSERT_EQ(errno, ENOTTY);
+
+	ASSERT_NE(ioctl(self->fd_mnt_ns[0], AUTOFS_DEV_IOCTL_READY, NULL), 0);
+	ASSERT_EQ(errno, ENOTTY);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/nsfs/owner.c b/tools/testing/selftests/filesystems/nsfs/owner.c
new file mode 100644
index 000000000000..96a976c74550
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/owner.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+
+#define NSIO    0xb7
+#define NS_GET_USERNS   _IO(NSIO, 0x1)
+
+#define pr_err(fmt, ...) \
+		({ \
+			fprintf(stderr, "%s:%d:" fmt ": %m\n", \
+				__func__, __LINE__, ##__VA_ARGS__); \
+			1; \
+		})
+
+int main(int argc, char *argvp[])
+{
+	int pfd[2], ns, uns, init_uns;
+	struct stat st1, st2;
+	char path[128];
+	pid_t pid;
+	char c;
+
+	if (pipe(pfd))
+		return 1;
+
+	pid = fork();
+	if (pid < 0)
+		return pr_err("fork");
+	if (pid == 0) {
+		prctl(PR_SET_PDEATHSIG, SIGKILL);
+		if (unshare(CLONE_NEWUTS | CLONE_NEWUSER))
+			return pr_err("unshare");
+		close(pfd[0]);
+		close(pfd[1]);
+		while (1)
+			sleep(1);
+		return 0;
+	}
+	close(pfd[1]);
+	if (read(pfd[0], &c, 1) != 0)
+		return pr_err("Unable to read from pipe");
+	close(pfd[0]);
+
+	snprintf(path, sizeof(path), "/proc/%d/ns/uts", pid);
+	ns = open(path, O_RDONLY);
+	if (ns < 0)
+		return pr_err("Unable to open %s", path);
+
+	uns = ioctl(ns, NS_GET_USERNS);
+	if (uns < 0)
+		return pr_err("Unable to get an owning user namespace");
+
+	if (fstat(uns, &st1))
+		return pr_err("fstat");
+
+	snprintf(path, sizeof(path), "/proc/%d/ns/user", pid);
+	if (stat(path, &st2))
+		return pr_err("stat");
+
+	if (st1.st_ino != st2.st_ino)
+		return pr_err("NS_GET_USERNS returned a wrong namespace");
+
+	init_uns = ioctl(uns, NS_GET_USERNS);
+	if (uns < 0)
+		return pr_err("Unable to get an owning user namespace");
+
+	if (ioctl(init_uns, NS_GET_USERNS) >= 0 || errno != EPERM)
+		return pr_err("Don't get EPERM");
+
+	if (unshare(CLONE_NEWUSER))
+		return pr_err("unshare");
+
+	if (ioctl(ns, NS_GET_USERNS) >= 0 || errno != EPERM)
+		return pr_err("Don't get EPERM");
+	if (ioctl(init_uns, NS_GET_USERNS) >= 0 || errno != EPERM)
+		return pr_err("Don't get EPERM");
+
+	kill(pid, SIGKILL);
+	wait(NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/filesystems/nsfs/pidns.c b/tools/testing/selftests/filesystems/nsfs/pidns.c
new file mode 100644
index 000000000000..e3c772c6a7c7
--- /dev/null
+++ b/tools/testing/selftests/filesystems/nsfs/pidns.c
@@ -0,0 +1,79 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+
+#define pr_err(fmt, ...) \
+		({ \
+			fprintf(stderr, "%s:%d:" fmt ": %m\n", \
+				__func__, __LINE__, ##__VA_ARGS__); \
+			1; \
+		})
+
+#define NSIO	0xb7
+#define NS_GET_USERNS   _IO(NSIO, 0x1)
+#define NS_GET_PARENT   _IO(NSIO, 0x2)
+
+#define __stack_aligned__	__attribute__((aligned(16)))
+struct cr_clone_arg {
+	char stack[128] __stack_aligned__;
+	char stack_ptr[];
+};
+
+static int child(void *args)
+{
+	prctl(PR_SET_PDEATHSIG, SIGKILL);
+	while (1)
+		sleep(1);
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	char *ns_strs[] = {"pid", "user"};
+	char path[] = "/proc/0123456789/ns/pid";
+	struct cr_clone_arg ca;
+	struct stat st1, st2;
+	int ns, pns, i;
+	pid_t pid;
+
+	pid = clone(child, ca.stack_ptr, CLONE_NEWUSER | CLONE_NEWPID | SIGCHLD, NULL);
+	if (pid < 0)
+		return pr_err("clone");
+
+	for (i = 0; i < 2; i++) {
+		snprintf(path, sizeof(path), "/proc/%d/ns/%s", pid, ns_strs[i]);
+		ns = open(path, O_RDONLY);
+		if (ns < 0)
+			return pr_err("Unable to open %s", path);
+
+		pns = ioctl(ns, NS_GET_PARENT);
+		if (pns < 0)
+			return pr_err("Unable to get a parent pidns");
+
+		snprintf(path, sizeof(path), "/proc/self/ns/%s", ns_strs[i]);
+		if (stat(path, &st2))
+			return pr_err("Unable to stat %s", path);
+		if (fstat(pns, &st1))
+			return pr_err("Unable to stat the parent pidns");
+		if (st1.st_ino != st2.st_ino)
+			return pr_err("NS_GET_PARENT returned a wrong namespace");
+
+		if (ioctl(pns, NS_GET_PARENT) >= 0 || errno != EPERM)
+			return pr_err("Don't get EPERM");
+	}
+
+	kill(pid, SIGKILL);
+	wait(NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/filesystems/overlayfs/.gitignore b/tools/testing/selftests/filesystems/overlayfs/.gitignore
new file mode 100644
index 000000000000..e23a18c8b37f
--- /dev/null
+++ b/tools/testing/selftests/filesystems/overlayfs/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+dev_in_maps
+set_layers_via_fds
diff --git a/tools/testing/selftests/filesystems/overlayfs/Makefile b/tools/testing/selftests/filesystems/overlayfs/Makefile
new file mode 100644
index 000000000000..d3ad4a77db9b
--- /dev/null
+++ b/tools/testing/selftests/filesystems/overlayfs/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -Wall
+CFLAGS += $(KHDR_INCLUDES)
+LDLIBS += -lcap
+
+LOCAL_HDRS += ../wrappers.h log.h
+
+TEST_GEN_PROGS := dev_in_maps
+TEST_GEN_PROGS += set_layers_via_fds
+
+include ../../lib.mk
+
+$(OUTPUT)/set_layers_via_fds: ../utils.c
diff --git a/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
new file mode 100644
index 000000000000..8924cea6aa4b
--- /dev/null
+++ b/tools/testing/selftests/filesystems/overlayfs/dev_in_maps.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+
+#include <inttypes.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include <linux/unistd.h>
+#include <linux/types.h>
+#include <linux/mount.h>
+#include <sys/syscall.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sched.h>
+#include <fcntl.h>
+
+#include "kselftest.h"
+#include "log.h"
+#include "../wrappers.h"
+
+static long get_file_dev_and_inode(void *addr, struct statx *stx)
+{
+	char buf[4096];
+	FILE *mapf;
+
+	mapf = fopen("/proc/self/maps", "r");
+	if (mapf == NULL)
+		return pr_perror("fopen(/proc/self/maps)");
+
+	while (fgets(buf, sizeof(buf), mapf)) {
+		unsigned long start, end;
+		uint32_t maj, min;
+		__u64 ino;
+
+		if (sscanf(buf, "%lx-%lx %*s %*s %x:%x %llu",
+				&start, &end, &maj, &min, &ino) != 5)
+			return pr_perror("unable to parse: %s", buf);
+		if (start == (unsigned long)addr) {
+			stx->stx_dev_major = maj;
+			stx->stx_dev_minor = min;
+			stx->stx_ino = ino;
+			return 0;
+		}
+	}
+
+	return pr_err("unable to find the mapping");
+}
+
+static int ovl_mount(void)
+{
+	int tmpfs, fsfd, ovl;
+
+	fsfd = sys_fsopen("tmpfs", 0);
+	if (fsfd == -1)
+		return pr_perror("fsopen(tmpfs)");
+
+	if (sys_fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0) == -1)
+		return pr_perror("FSCONFIG_CMD_CREATE");
+
+	tmpfs = sys_fsmount(fsfd, 0, 0);
+	if (tmpfs == -1)
+		return pr_perror("fsmount");
+
+	close(fsfd);
+
+	/* overlayfs can't be constructed on top of a detached mount. */
+	if (sys_move_mount(tmpfs, "", AT_FDCWD, "/tmp", MOVE_MOUNT_F_EMPTY_PATH))
+		return pr_perror("move_mount");
+	close(tmpfs);
+
+	if (mkdir("/tmp/w", 0755) == -1 ||
+	    mkdir("/tmp/u", 0755) == -1 ||
+	    mkdir("/tmp/l", 0755) == -1)
+		return pr_perror("mkdir");
+
+	fsfd = sys_fsopen("overlay", 0);
+	if (fsfd == -1)
+		return pr_perror("fsopen(overlay)");
+	if (sys_fsconfig(fsfd, FSCONFIG_SET_STRING, "source", "test", 0) == -1 ||
+	    sys_fsconfig(fsfd, FSCONFIG_SET_STRING, "lowerdir", "/tmp/l", 0) == -1 ||
+	    sys_fsconfig(fsfd, FSCONFIG_SET_STRING, "upperdir", "/tmp/u", 0) == -1 ||
+	    sys_fsconfig(fsfd, FSCONFIG_SET_STRING, "workdir", "/tmp/w", 0) == -1)
+		return pr_perror("fsconfig");
+	if (sys_fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0) == -1)
+		return pr_perror("fsconfig");
+	ovl = sys_fsmount(fsfd, 0, 0);
+	if (ovl == -1)
+		return pr_perror("fsmount");
+
+	return ovl;
+}
+
+/*
+ * Check that the file device and inode shown in /proc/pid/maps match values
+ * returned by stat(2).
+ */
+static int test(void)
+{
+	struct statx stx, mstx;
+	int ovl, fd;
+	void *addr;
+
+	ovl = ovl_mount();
+	if (ovl == -1)
+		return -1;
+
+	fd = openat(ovl, "test", O_RDWR | O_CREAT, 0644);
+	if (fd == -1)
+		return pr_perror("openat");
+
+	addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_FILE | MAP_SHARED, fd, 0);
+	if (addr == MAP_FAILED)
+		return pr_perror("mmap");
+
+	if (get_file_dev_and_inode(addr, &mstx))
+		return -1;
+	if (statx(fd, "", AT_EMPTY_PATH | AT_STATX_SYNC_AS_STAT, STATX_INO, &stx))
+		return pr_perror("statx");
+
+	if (stx.stx_dev_major != mstx.stx_dev_major ||
+	    stx.stx_dev_minor != mstx.stx_dev_minor ||
+	    stx.stx_ino != mstx.stx_ino)
+		return pr_fail("unmatched dev:ino %x:%x:%llx (expected %x:%x:%llx)\n",
+			mstx.stx_dev_major, mstx.stx_dev_minor, mstx.stx_ino,
+			stx.stx_dev_major, stx.stx_dev_minor, stx.stx_ino);
+
+	ksft_test_result_pass("devices are matched\n");
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int fsfd;
+
+	fsfd = sys_fsopen("overlay", 0);
+	if (fsfd == -1) {
+		ksft_test_result_skip("unable to create overlay mount\n");
+		return 1;
+	}
+	close(fsfd);
+
+	/* Create a new mount namespace to not care about cleaning test mounts. */
+	if (unshare(CLONE_NEWNS) == -1) {
+		ksft_test_result_skip("unable to create a new mount namespace\n");
+		return 1;
+	}
+	if (sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL) == -1) {
+		pr_perror("mount");
+		return 1;
+	}
+
+	ksft_set_plan(1);
+
+	if (test())
+		return 1;
+
+	ksft_exit_pass();
+	return 0;
+}
diff --git a/tools/testing/selftests/filesystems/overlayfs/log.h b/tools/testing/selftests/filesystems/overlayfs/log.h
new file mode 100644
index 000000000000..db64df2a8483
--- /dev/null
+++ b/tools/testing/selftests/filesystems/overlayfs/log.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __SELFTEST_TIMENS_LOG_H__
+#define __SELFTEST_TIMENS_LOG_H__
+
+#define pr_msg(fmt, lvl, ...)						\
+	ksft_print_msg("[%s] (%s:%d)\t" fmt "\n",			\
+			lvl, __FILE__, __LINE__, ##__VA_ARGS__)
+
+#define pr_p(func, fmt, ...)	func(fmt ": %m", ##__VA_ARGS__)
+
+#define pr_err(fmt, ...)						\
+	({								\
+		ksft_test_result_error(fmt "\n", ##__VA_ARGS__);		\
+		-1;							\
+	})
+
+#define pr_fail(fmt, ...)					\
+	({							\
+		ksft_test_result_fail(fmt, ##__VA_ARGS__);	\
+		-1;						\
+	})
+
+#define pr_perror(fmt, ...)	pr_p(pr_err, fmt, ##__VA_ARGS__)
+
+#endif
diff --git a/tools/testing/selftests/filesystems/overlayfs/set_layers_via_fds.c b/tools/testing/selftests/filesystems/overlayfs/set_layers_via_fds.c
new file mode 100644
index 000000000000..3c0b93183348
--- /dev/null
+++ b/tools/testing/selftests/filesystems/overlayfs/set_layers_via_fds.c
@@ -0,0 +1,720 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+#include "../../pidfd/pidfd.h"
+#include "log.h"
+#include "../utils.h"
+#include "../wrappers.h"
+
+FIXTURE(set_layers_via_fds) {
+	int pidfd;
+};
+
+FIXTURE_SETUP(set_layers_via_fds)
+{
+	self->pidfd = -EBADF;
+	EXPECT_EQ(mkdir("/set_layers_via_fds", 0755), 0);
+	EXPECT_EQ(mkdir("/set_layers_via_fds_tmpfs", 0755), 0);
+}
+
+FIXTURE_TEARDOWN(set_layers_via_fds)
+{
+	if (self->pidfd >= 0) {
+		EXPECT_EQ(sys_pidfd_send_signal(self->pidfd, SIGKILL, NULL, 0), 0);
+		EXPECT_EQ(close(self->pidfd), 0);
+	}
+	umount2("/set_layers_via_fds", 0);
+	EXPECT_EQ(rmdir("/set_layers_via_fds"), 0);
+
+	umount2("/set_layers_via_fds_tmpfs", 0);
+	EXPECT_EQ(rmdir("/set_layers_via_fds_tmpfs"), 0);
+}
+
+TEST_F(set_layers_via_fds, set_layers_via_fds)
+{
+	int fd_context, fd_tmpfs, fd_overlay;
+	int layer_fds[] = { [0 ... 8] = -EBADF };
+	bool layers_found[] = { [0 ... 8] =  false };
+	size_t len = 0;
+	char *line = NULL;
+	FILE *f_mountinfo;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l2", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l3", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l4", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d2", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d3", 0755), 0);
+
+	layer_fds[0] = openat(fd_tmpfs, "w", O_DIRECTORY);
+	ASSERT_GE(layer_fds[0], 0);
+
+	layer_fds[1] = openat(fd_tmpfs, "u", O_DIRECTORY);
+	ASSERT_GE(layer_fds[1], 0);
+
+	layer_fds[2] = openat(fd_tmpfs, "l1", O_DIRECTORY);
+	ASSERT_GE(layer_fds[2], 0);
+
+	layer_fds[3] = openat(fd_tmpfs, "l2", O_DIRECTORY);
+	ASSERT_GE(layer_fds[3], 0);
+
+	layer_fds[4] = openat(fd_tmpfs, "l3", O_DIRECTORY);
+	ASSERT_GE(layer_fds[4], 0);
+
+	layer_fds[5] = openat(fd_tmpfs, "l4", O_DIRECTORY);
+	ASSERT_GE(layer_fds[5], 0);
+
+	layer_fds[6] = openat(fd_tmpfs, "d1", O_DIRECTORY);
+	ASSERT_GE(layer_fds[6], 0);
+
+	layer_fds[7] = openat(fd_tmpfs, "d2", O_DIRECTORY);
+	ASSERT_GE(layer_fds[7], 0);
+
+	layer_fds[8] = openat(fd_tmpfs, "d3", O_DIRECTORY);
+	ASSERT_GE(layer_fds[8], 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir", NULL, layer_fds[2]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, layer_fds[0]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, layer_fds[1]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[3]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[4]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[5]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[6]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[7]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[8]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_STRING, "metacopy", "on", 0), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_overlay, "", -EBADF, "/set_layers_via_fds", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	f_mountinfo = fopen("/proc/self/mountinfo", "r");
+	ASSERT_NE(f_mountinfo, NULL);
+
+	while (getline(&line, &len, f_mountinfo) != -1) {
+		char *haystack = line;
+
+		if (strstr(haystack, "workdir=/tmp/w"))
+			layers_found[0] = true;
+		if (strstr(haystack, "upperdir=/tmp/u"))
+			layers_found[1] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l1"))
+			layers_found[2] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l2"))
+			layers_found[3] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l3"))
+			layers_found[4] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l4"))
+			layers_found[5] = true;
+		if (strstr(haystack, "datadir+=/tmp/d1"))
+			layers_found[6] = true;
+		if (strstr(haystack, "datadir+=/tmp/d2"))
+			layers_found[7] = true;
+		if (strstr(haystack, "datadir+=/tmp/d3"))
+			layers_found[8] = true;
+	}
+	free(line);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		ASSERT_EQ(layers_found[i], true);
+		ASSERT_EQ(close(layer_fds[i]), 0);
+	}
+
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+	ASSERT_EQ(fclose(f_mountinfo), 0);
+}
+
+TEST_F(set_layers_via_fds, set_500_layers_via_fds)
+{
+	int fd_context, fd_tmpfs, fd_overlay, fd_work, fd_upper, fd_lower;
+	int layer_fds[500] = { [0 ... 499] = -EBADF };
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		char path[100];
+
+		sprintf(path, "l%d", i);
+		ASSERT_EQ(mkdirat(fd_tmpfs, path, 0755), 0);
+		layer_fds[i] = openat(fd_tmpfs, path, O_DIRECTORY);
+		ASSERT_GE(layer_fds[i], 0);
+	}
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	fd_work = openat(fd_tmpfs, "w", O_DIRECTORY);
+	ASSERT_GE(fd_work, 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	fd_upper = openat(fd_tmpfs, "u", O_DIRECTORY);
+	ASSERT_GE(fd_upper, 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l501", 0755), 0);
+	fd_lower = openat(fd_tmpfs, "l501", O_DIRECTORY);
+	ASSERT_GE(fd_lower, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, fd_work), 0);
+	ASSERT_EQ(close(fd_work), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, fd_upper), 0);
+	ASSERT_EQ(close(fd_upper), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[i]), 0);
+		ASSERT_EQ(close(layer_fds[i]), 0);
+	}
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower), 0);
+	ASSERT_EQ(close(fd_lower), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+}
+
+TEST_F(set_layers_via_fds, set_override_creds)
+{
+	int fd_context, fd_tmpfs, fd_overlay;
+	int layer_fds[] = { [0 ... 3] = -EBADF };
+	pid_t pid;
+	int pidfd;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l2", 0755), 0);
+
+	layer_fds[0] = openat(fd_tmpfs, "w", O_DIRECTORY);
+	ASSERT_GE(layer_fds[0], 0);
+
+	layer_fds[1] = openat(fd_tmpfs, "u", O_DIRECTORY);
+	ASSERT_GE(layer_fds[1], 0);
+
+	layer_fds[2] = openat(fd_tmpfs, "l1", O_DIRECTORY);
+	ASSERT_GE(layer_fds[2], 0);
+
+	layer_fds[3] = openat(fd_tmpfs, "l2", O_DIRECTORY);
+	ASSERT_GE(layer_fds[3], 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir", NULL, layer_fds[2]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, layer_fds[0]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, layer_fds[1]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[3]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_STRING, "metacopy", "on", 0), 0);
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		if (sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "override_creds", NULL, 0)) {
+			TH_LOG("sys_fsconfig should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		_exit(EXIT_SUCCESS);
+	}
+	ASSERT_GE(sys_waitid(P_PID, pid, NULL, WEXITED), 0);
+	ASSERT_GE(close(pidfd), 0);
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		if (sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "nooverride_creds", NULL, 0)) {
+			TH_LOG("sys_fsconfig should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		_exit(EXIT_SUCCESS);
+	}
+	ASSERT_GE(sys_waitid(P_PID, pid, NULL, WEXITED), 0);
+	ASSERT_GE(close(pidfd), 0);
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		if (sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "override_creds", NULL, 0)) {
+			TH_LOG("sys_fsconfig should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		_exit(EXIT_SUCCESS);
+	}
+	ASSERT_GE(sys_waitid(P_PID, pid, NULL, WEXITED), 0);
+	ASSERT_GE(close(pidfd), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_overlay, "", -EBADF, "/set_layers_via_fds", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+}
+
+TEST_F(set_layers_via_fds, set_override_creds_invalid)
+{
+	int fd_context, fd_tmpfs, fd_overlay, ret;
+	int layer_fds[] = { [0 ... 3] = -EBADF };
+	pid_t pid;
+	int fd_userns1, fd_userns2;
+	int ipc_sockets[2];
+	char c;
+	const unsigned int predictable_fd_context_nr = 123;
+
+	fd_userns1 = get_userns_fd(0, 0, 10000);
+	ASSERT_GE(fd_userns1, 0);
+
+	fd_userns2 = get_userns_fd(0, 1234, 10000);
+	ASSERT_GE(fd_userns2, 0);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	ASSERT_GE(ret, 0);
+
+	pid = create_child(&self->pidfd, 0);
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		if (close(ipc_sockets[0])) {
+			TH_LOG("close should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		if (!switch_userns(fd_userns2, 0, 0, false)) {
+			TH_LOG("switch_userns should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		if (read_nointr(ipc_sockets[1], &c, 1) != 1) {
+			TH_LOG("read_nointr should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		if (close(ipc_sockets[1])) {
+			TH_LOG("close should have succeeded");
+			_exit(EXIT_FAILURE);
+		}
+
+		if (!sys_fsconfig(predictable_fd_context_nr, FSCONFIG_SET_FLAG, "override_creds", NULL, 0)) {
+			TH_LOG("sys_fsconfig should have failed");
+			_exit(EXIT_FAILURE);
+		}
+
+		_exit(EXIT_SUCCESS);
+	}
+
+	ASSERT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(switch_userns(fd_userns1, 0, 0, false), true);
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l2", 0755), 0);
+
+	layer_fds[0] = openat(fd_tmpfs, "w", O_DIRECTORY);
+	ASSERT_GE(layer_fds[0], 0);
+
+	layer_fds[1] = openat(fd_tmpfs, "u", O_DIRECTORY);
+	ASSERT_GE(layer_fds[1], 0);
+
+	layer_fds[2] = openat(fd_tmpfs, "l1", O_DIRECTORY);
+	ASSERT_GE(layer_fds[2], 0);
+
+	layer_fds[3] = openat(fd_tmpfs, "l2", O_DIRECTORY);
+	ASSERT_GE(layer_fds[3], 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+	ASSERT_EQ(dup3(fd_context, predictable_fd_context_nr, 0), predictable_fd_context_nr);
+	ASSERT_EQ(close(fd_context), 0);
+	fd_context = predictable_fd_context_nr;
+	ASSERT_EQ(write_nointr(ipc_sockets[0], "1", 1), 1);
+	ASSERT_EQ(close(ipc_sockets[0]), 0);
+
+	ASSERT_EQ(wait_for_pid(pid), 0);
+	ASSERT_EQ(close(self->pidfd), 0);
+	self->pidfd = -EBADF;
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, layer_fds[0]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, layer_fds[1]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[3]), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++)
+		ASSERT_EQ(close(layer_fds[i]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "userxattr", NULL, 0), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_overlay, "", -EBADF, "/set_layers_via_fds", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+	ASSERT_EQ(close(fd_userns1), 0);
+	ASSERT_EQ(close(fd_userns2), 0);
+}
+
+TEST_F(set_layers_via_fds, set_override_creds_nomknod)
+{
+	int fd_context, fd_tmpfs, fd_overlay;
+	int layer_fds[] = { [0 ... 3] = -EBADF };
+	pid_t pid;
+	int pidfd;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l2", 0755), 0);
+
+	layer_fds[0] = openat(fd_tmpfs, "w", O_DIRECTORY);
+	ASSERT_GE(layer_fds[0], 0);
+
+	layer_fds[1] = openat(fd_tmpfs, "u", O_DIRECTORY);
+	ASSERT_GE(layer_fds[1], 0);
+
+	layer_fds[2] = openat(fd_tmpfs, "l1", O_DIRECTORY);
+	ASSERT_GE(layer_fds[2], 0);
+
+	layer_fds[3] = openat(fd_tmpfs, "l2", O_DIRECTORY);
+	ASSERT_GE(layer_fds[3], 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir", NULL, layer_fds[2]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, layer_fds[0]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, layer_fds[1]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[3]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "userxattr", NULL, 0), 0);
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		if (!cap_down(CAP_MKNOD))
+			_exit(EXIT_FAILURE);
+
+		if (!cap_down(CAP_SYS_ADMIN))
+			_exit(EXIT_FAILURE);
+
+		if (sys_fsconfig(fd_context, FSCONFIG_SET_FLAG, "override_creds", NULL, 0))
+			_exit(EXIT_FAILURE);
+
+		_exit(EXIT_SUCCESS);
+	}
+	ASSERT_EQ(sys_waitid(P_PID, pid, NULL, WEXITED), 0);
+	ASSERT_GE(close(pidfd), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_overlay, "", -EBADF, "/set_layers_via_fds", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(mknodat(fd_overlay, "dev-zero", S_IFCHR | 0644, makedev(1, 5)), -1);
+	ASSERT_EQ(errno, EPERM);
+
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+}
+
+TEST_F(set_layers_via_fds, set_500_layers_via_opath_fds)
+{
+	int fd_context, fd_tmpfs, fd_overlay, fd_work, fd_upper, fd_lower;
+	int layer_fds[500] = { [0 ... 499] = -EBADF };
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		char path[100];
+
+		sprintf(path, "l%d", i);
+		ASSERT_EQ(mkdirat(fd_tmpfs, path, 0755), 0);
+		layer_fds[i] = openat(fd_tmpfs, path, O_DIRECTORY | O_PATH);
+		ASSERT_GE(layer_fds[i], 0);
+	}
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "w", 0755), 0);
+	fd_work = openat(fd_tmpfs, "w", O_DIRECTORY | O_PATH);
+	ASSERT_GE(fd_work, 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	fd_upper = openat(fd_tmpfs, "u", O_DIRECTORY | O_PATH);
+	ASSERT_GE(fd_upper, 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l501", 0755), 0);
+	fd_lower = openat(fd_tmpfs, "l501", O_DIRECTORY | O_PATH);
+	ASSERT_GE(fd_lower, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/tmp", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, fd_work), 0);
+	ASSERT_EQ(close(fd_work), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, fd_upper), 0);
+	ASSERT_EQ(close(fd_upper), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[i]), 0);
+		ASSERT_EQ(close(layer_fds[i]), 0);
+	}
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, fd_lower), 0);
+	ASSERT_EQ(close(fd_lower), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+}
+
+TEST_F(set_layers_via_fds, set_layers_via_detached_mount_fds)
+{
+	int fd_context, fd_tmpfs, fd_overlay, fd_tmp;
+	int layer_fds[] = { [0 ... 8] = -EBADF };
+	bool layers_found[] = { [0 ... 8] =  false };
+	size_t len = 0;
+	char *line = NULL;
+	FILE *f_mountinfo;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(sys_mount(NULL, "/", NULL, MS_SLAVE | MS_REC, NULL), 0);
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+	ASSERT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u/upper", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "u/work", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l2", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l3", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "l4", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d1", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d2", 0755), 0);
+	ASSERT_EQ(mkdirat(fd_tmpfs, "d3", 0755), 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tmpfs, "", -EBADF, "/set_layers_via_fds_tmpfs", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	fd_tmp = open_tree(fd_tmpfs, "u", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(fd_tmp, 0);
+
+	layer_fds[0] = openat(fd_tmp, "upper", O_CLOEXEC | O_DIRECTORY | O_PATH);
+	ASSERT_GE(layer_fds[0], 0);
+
+	layer_fds[1] = openat(fd_tmp, "work", O_CLOEXEC | O_DIRECTORY | O_PATH);
+	ASSERT_GE(layer_fds[1], 0);
+
+	layer_fds[2] = open_tree(fd_tmpfs, "l1", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[2], 0);
+
+	layer_fds[3] = open_tree(fd_tmpfs, "l2", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[3], 0);
+
+	layer_fds[4] = open_tree(fd_tmpfs, "l3", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[4], 0);
+
+	layer_fds[5] = open_tree(fd_tmpfs, "l4", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[5], 0);
+
+	layer_fds[6] = open_tree(fd_tmpfs, "d1", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[6], 0);
+
+	layer_fds[7] = open_tree(fd_tmpfs, "d2", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[7], 0);
+
+	layer_fds[8] = open_tree(fd_tmpfs, "d3", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(layer_fds[8], 0);
+
+	ASSERT_EQ(close(fd_tmpfs), 0);
+
+	fd_context = sys_fsopen("overlay", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_NE(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir", NULL, layer_fds[2]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "upperdir",  NULL, layer_fds[0]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "workdir",   NULL, layer_fds[1]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[2]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[3]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[4]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "lowerdir+", NULL, layer_fds[5]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[6]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[7]), 0);
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_FD, "datadir+",  NULL, layer_fds[8]), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_SET_STRING, "metacopy", "on", 0), 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_overlay = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_overlay, 0);
+
+	ASSERT_EQ(sys_move_mount(fd_overlay, "", -EBADF, "/set_layers_via_fds", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	f_mountinfo = fopen("/proc/self/mountinfo", "r");
+	ASSERT_NE(f_mountinfo, NULL);
+
+	while (getline(&line, &len, f_mountinfo) != -1) {
+		char *haystack = line;
+
+		if (strstr(haystack, "workdir=/tmp/w"))
+			layers_found[0] = true;
+		if (strstr(haystack, "upperdir=/tmp/u"))
+			layers_found[1] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l1"))
+			layers_found[2] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l2"))
+			layers_found[3] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l3"))
+			layers_found[4] = true;
+		if (strstr(haystack, "lowerdir+=/tmp/l4"))
+			layers_found[5] = true;
+		if (strstr(haystack, "datadir+=/tmp/d1"))
+			layers_found[6] = true;
+		if (strstr(haystack, "datadir+=/tmp/d2"))
+			layers_found[7] = true;
+		if (strstr(haystack, "datadir+=/tmp/d3"))
+			layers_found[8] = true;
+	}
+	free(line);
+
+	for (int i = 0; i < ARRAY_SIZE(layer_fds); i++) {
+		ASSERT_EQ(layers_found[i], true);
+		ASSERT_EQ(close(layer_fds[i]), 0);
+	}
+
+	ASSERT_EQ(close(fd_context), 0);
+	ASSERT_EQ(close(fd_overlay), 0);
+	ASSERT_EQ(fclose(f_mountinfo), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/statmount/.gitignore b/tools/testing/selftests/filesystems/statmount/.gitignore
new file mode 100644
index 000000000000..973363ad66a2
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+statmount_test_ns
+/*_test
diff --git a/tools/testing/selftests/filesystems/statmount/Makefile b/tools/testing/selftests/filesystems/statmount/Makefile
new file mode 100644
index 000000000000..8e354fe99b44
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
+LDLIBS += -lcap
+
+TEST_GEN_PROGS := statmount_test statmount_test_ns listmount_test
+
+include ../../lib.mk
+
+$(OUTPUT)/statmount_test_ns: ../utils.c
diff --git a/tools/testing/selftests/filesystems/statmount/listmount_test.c b/tools/testing/selftests/filesystems/statmount/listmount_test.c
new file mode 100644
index 000000000000..8bc82f38c42f
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/listmount_test.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2024 Christian Brauner <brauner@kernel.org>
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "statmount.h"
+#include "kselftest_harness.h"
+
+#ifndef LISTMOUNT_REVERSE
+#define LISTMOUNT_REVERSE    (1 << 0) /* List later mounts first */
+#endif
+
+#define LISTMNT_BUFFER 10
+
+/* Check that all mount ids are in increasing order. */
+TEST(listmount_forward)
+{
+	uint64_t list[LISTMNT_BUFFER], last_mnt_id = 0;
+
+	for (;;) {
+		ssize_t nr_mounts;
+
+		nr_mounts = listmount(LSMT_ROOT, 0, last_mnt_id,
+				      list, LISTMNT_BUFFER, 0);
+		ASSERT_GE(nr_mounts, 0);
+		if (nr_mounts == 0)
+			break;
+
+		for (size_t cur = 0; cur < nr_mounts; cur++) {
+			if (cur < nr_mounts - 1)
+				ASSERT_LT(list[cur], list[cur + 1]);
+			last_mnt_id = list[cur];
+		}
+	}
+}
+
+/* Check that all mount ids are in decreasing order. */
+TEST(listmount_backward)
+{
+	uint64_t list[LISTMNT_BUFFER], last_mnt_id = 0;
+
+	for (;;) {
+		ssize_t nr_mounts;
+
+		nr_mounts = listmount(LSMT_ROOT, 0, last_mnt_id,
+				      list, LISTMNT_BUFFER, LISTMOUNT_REVERSE);
+		ASSERT_GE(nr_mounts, 0);
+		if (nr_mounts == 0)
+			break;
+
+		for (size_t cur = 0; cur < nr_mounts; cur++) {
+			if (cur < nr_mounts - 1)
+				ASSERT_GT(list[cur], list[cur + 1]);
+			last_mnt_id = list[cur];
+		}
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/filesystems/statmount/statmount.h b/tools/testing/selftests/filesystems/statmount/statmount.h
new file mode 100644
index 000000000000..99e5ad082fb1
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/statmount.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __STATMOUNT_H
+#define __STATMOUNT_H
+
+#include <stdint.h>
+#include <linux/mount.h>
+#include <asm/unistd.h>
+
+#ifndef __NR_statmount
+	#if defined __alpha__
+		#define __NR_statmount 567
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_statmount 4457
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_statmount 6457
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_statmount 5457
+		#endif
+	#else
+		#define __NR_statmount 457
+	#endif
+#endif
+
+#ifndef __NR_listmount
+	#if defined __alpha__
+		#define __NR_listmount 568
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_listmount 4458
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_listmount 6458
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_listmount 5458
+		#endif
+	#else
+		#define __NR_listmount 458
+	#endif
+#endif
+
+static inline int statmount(uint64_t mnt_id, uint64_t mnt_ns_id, uint64_t mask,
+			    struct statmount *buf, size_t bufsize,
+			    unsigned int flags)
+{
+	struct mnt_id_req req = {
+		.size = MNT_ID_REQ_SIZE_VER0,
+		.mnt_id = mnt_id,
+		.param = mask,
+	};
+
+	if (mnt_ns_id) {
+		req.size = MNT_ID_REQ_SIZE_VER1;
+		req.mnt_ns_id = mnt_ns_id;
+	}
+
+	return syscall(__NR_statmount, &req, buf, bufsize, flags);
+}
+
+static inline ssize_t listmount(uint64_t mnt_id, uint64_t mnt_ns_id,
+			 uint64_t last_mnt_id, uint64_t list[], size_t num,
+			 unsigned int flags)
+{
+	struct mnt_id_req req = {
+		.size = MNT_ID_REQ_SIZE_VER0,
+		.mnt_id = mnt_id,
+		.param = last_mnt_id,
+	};
+
+	if (mnt_ns_id) {
+		req.size = MNT_ID_REQ_SIZE_VER1;
+		req.mnt_ns_id = mnt_ns_id;
+	}
+
+	return syscall(__NR_listmount, &req, list, num, flags);
+}
+
+#endif /* __STATMOUNT_H */
diff --git a/tools/testing/selftests/filesystems/statmount/statmount_test.c b/tools/testing/selftests/filesystems/statmount/statmount_test.c
new file mode 100644
index 000000000000..6e53430423d2
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/statmount_test.c
@@ -0,0 +1,702 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <stddef.h>
+#include <sched.h>
+#include <fcntl.h>
+#include <sys/param.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/statfs.h>
+#include <linux/stat.h>
+
+#include "statmount.h"
+#include "kselftest.h"
+
+static const char *const known_fs[] = {
+	"9p", "adfs", "affs", "afs", "aio", "anon_inodefs", "apparmorfs",
+	"autofs", "bcachefs", "bdev", "befs", "bfs", "binder", "binfmt_misc",
+	"bpf", "btrfs", "btrfs_test_fs", "ceph", "cgroup", "cgroup2", "cifs",
+	"coda", "configfs", "cpuset", "cramfs", "cxl", "dax", "debugfs",
+	"devpts", "devtmpfs", "dmabuf", "drm", "ecryptfs", "efivarfs", "efs",
+	"erofs", "exfat", "ext2", "ext3", "ext4", "f2fs", "functionfs",
+	"fuse", "fuseblk", "fusectl", "gadgetfs", "gfs2", "gfs2meta", "hfs",
+	"hfsplus", "hostfs", "hpfs", "hugetlbfs", "ibmasmfs", "iomem",
+	"ipathfs", "iso9660", "jffs2", "jfs", "minix", "mqueue", "msdos",
+	"nfs", "nfs4", "nfsd", "nilfs2", "nsfs", "ntfs", "ntfs3", "ocfs2",
+	"ocfs2_dlmfs", "omfs", "openpromfs", "overlay", "pipefs", "proc",
+	"pstore", "pvfs2", "qnx4", "qnx6", "ramfs", "resctrl", "romfs",
+	"rootfs", "rpc_pipefs", "s390_hypfs", "secretmem", "securityfs",
+	"selinuxfs", "smackfs", "smb3", "sockfs", "spufs", "squashfs", "sysfs",
+	"sysv", "tmpfs", "tracefs", "ubifs", "udf", "ufs", "v7", "vboxsf",
+	"vfat", "virtiofs", "vxfs", "xenfs", "xfs", "zonefs", NULL };
+
+static struct statmount *statmount_alloc(uint64_t mnt_id, uint64_t mask, unsigned int flags)
+{
+	size_t bufsize = 1 << 15;
+	struct statmount *buf = NULL, *tmp = alloca(bufsize);
+	int tofree = 0;
+	int ret;
+
+	for (;;) {
+		ret = statmount(mnt_id, 0, mask, tmp, bufsize, flags);
+		if (ret != -1)
+			break;
+		if (tofree)
+			free(tmp);
+		if (errno != EOVERFLOW)
+			return NULL;
+		bufsize <<= 1;
+		tofree = 1;
+		tmp = malloc(bufsize);
+		if (!tmp)
+			return NULL;
+	}
+	buf = malloc(tmp->size);
+	if (buf)
+		memcpy(buf, tmp, tmp->size);
+	if (tofree)
+		free(tmp);
+
+	return buf;
+}
+
+static void write_file(const char *path, const char *val)
+{
+	int fd = open(path, O_WRONLY);
+	size_t len = strlen(val);
+	int ret;
+
+	if (fd == -1)
+		ksft_exit_fail_msg("opening %s for write: %s\n", path, strerror(errno));
+
+	ret = write(fd, val, len);
+	if (ret == -1)
+		ksft_exit_fail_msg("writing to %s: %s\n", path, strerror(errno));
+	if (ret != len)
+		ksft_exit_fail_msg("short write to %s\n", path);
+
+	ret = close(fd);
+	if (ret == -1)
+		ksft_exit_fail_msg("closing %s\n", path);
+}
+
+static uint64_t get_mnt_id(const char *name, const char *path, uint64_t mask)
+{
+	struct statx sx;
+	int ret;
+
+	ret = statx(AT_FDCWD, path, 0, mask, &sx);
+	if (ret == -1)
+		ksft_exit_fail_msg("retrieving %s mount ID for %s: %s\n",
+				   mask & STATX_MNT_ID_UNIQUE ? "unique" : "old",
+				   name, strerror(errno));
+	if (!(sx.stx_mask & mask))
+		ksft_exit_fail_msg("no %s mount ID available for %s\n",
+				   mask & STATX_MNT_ID_UNIQUE ? "unique" : "old",
+				   name);
+
+	return sx.stx_mnt_id;
+}
+
+
+static char root_mntpoint[] = "/tmp/statmount_test_root.XXXXXX";
+static int orig_root;
+static uint64_t root_id, parent_id;
+static uint32_t old_root_id, old_parent_id;
+static FILE *f_mountinfo;
+
+static void cleanup_namespace(void)
+{
+	int ret;
+
+	ret = fchdir(orig_root);
+	if (ret == -1)
+		ksft_perror("fchdir to original root");
+
+	ret = chroot(".");
+	if (ret == -1)
+		ksft_perror("chroot to original root");
+
+	umount2(root_mntpoint, MNT_DETACH);
+	rmdir(root_mntpoint);
+}
+
+static void setup_namespace(void)
+{
+	int ret;
+	char buf[32];
+	uid_t uid = getuid();
+	gid_t gid = getgid();
+
+	ret = unshare(CLONE_NEWNS|CLONE_NEWUSER|CLONE_NEWPID);
+	if (ret == -1)
+		ksft_exit_fail_msg("unsharing mountns and userns: %s\n",
+				   strerror(errno));
+
+	sprintf(buf, "0 %d 1", uid);
+	write_file("/proc/self/uid_map", buf);
+	write_file("/proc/self/setgroups", "deny");
+	sprintf(buf, "0 %d 1", gid);
+	write_file("/proc/self/gid_map", buf);
+
+	f_mountinfo = fopen("/proc/self/mountinfo", "re");
+	if (!f_mountinfo)
+		ksft_exit_fail_msg("failed to open mountinfo: %s\n",
+				   strerror(errno));
+
+	ret = mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL);
+	if (ret == -1)
+		ksft_exit_fail_msg("making mount tree private: %s\n",
+				   strerror(errno));
+
+	if (!mkdtemp(root_mntpoint))
+		ksft_exit_fail_msg("creating temporary directory %s: %s\n",
+				   root_mntpoint, strerror(errno));
+
+	old_parent_id = get_mnt_id("parent", root_mntpoint, STATX_MNT_ID);
+	parent_id = get_mnt_id("parent", root_mntpoint, STATX_MNT_ID_UNIQUE);
+
+	orig_root = open("/", O_PATH);
+	if (orig_root == -1)
+		ksft_exit_fail_msg("opening root directory: %s",
+				   strerror(errno));
+
+	atexit(cleanup_namespace);
+
+	ret = mount(root_mntpoint, root_mntpoint, NULL, MS_BIND, NULL);
+	if (ret == -1)
+		ksft_exit_fail_msg("mounting temp root %s: %s\n",
+				   root_mntpoint, strerror(errno));
+
+	ret = chroot(root_mntpoint);
+	if (ret == -1)
+		ksft_exit_fail_msg("chroot to temp root %s: %s\n",
+				   root_mntpoint, strerror(errno));
+
+	ret = chdir("/");
+	if (ret == -1)
+		ksft_exit_fail_msg("chdir to root: %s\n", strerror(errno));
+
+	old_root_id = get_mnt_id("root", "/", STATX_MNT_ID);
+	root_id = get_mnt_id("root", "/", STATX_MNT_ID_UNIQUE);
+}
+
+static int setup_mount_tree(int log2_num)
+{
+	int ret, i;
+
+	ret = mount("", "/", NULL, MS_REC|MS_SHARED, NULL);
+	if (ret == -1) {
+		ksft_test_result_fail("making mount tree shared: %s\n",
+				   strerror(errno));
+		return -1;
+	}
+
+	for (i = 0; i < log2_num; i++) {
+		ret = mount("/", "/", NULL, MS_BIND, NULL);
+		if (ret == -1) {
+			ksft_test_result_fail("mounting submount %s: %s\n",
+					      root_mntpoint, strerror(errno));
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static void test_listmount_empty_root(void)
+{
+	ssize_t res;
+	const unsigned int size = 32;
+	uint64_t list[size];
+
+	res = listmount(LSMT_ROOT, 0, 0, list, size, 0);
+	if (res == -1) {
+		ksft_test_result_fail("listmount: %s\n", strerror(errno));
+		return;
+	}
+	if (res != 1) {
+		ksft_test_result_fail("listmount result is %zi != 1\n", res);
+		return;
+	}
+
+	if (list[0] != root_id) {
+		ksft_test_result_fail("listmount ID doesn't match 0x%llx != 0x%llx\n",
+				      (unsigned long long) list[0],
+				      (unsigned long long) root_id);
+		return;
+	}
+
+	ksft_test_result_pass("listmount empty root\n");
+}
+
+static void test_statmount_zero_mask(void)
+{
+	struct statmount sm;
+	int ret;
+
+	ret = statmount(root_id, 0, 0, &sm, sizeof(sm), 0);
+	if (ret == -1) {
+		ksft_test_result_fail("statmount zero mask: %s\n",
+				      strerror(errno));
+		return;
+	}
+	if (sm.size != sizeof(sm)) {
+		ksft_test_result_fail("unexpected size: %u != %u\n",
+				      sm.size, (uint32_t) sizeof(sm));
+		return;
+	}
+	if (sm.mask != 0) {
+		ksft_test_result_fail("unexpected mask: 0x%llx != 0x0\n",
+				      (unsigned long long) sm.mask);
+		return;
+	}
+
+	ksft_test_result_pass("statmount zero mask\n");
+}
+
+static void test_statmount_mnt_basic(void)
+{
+	struct statmount sm;
+	int ret;
+	uint64_t mask = STATMOUNT_MNT_BASIC;
+
+	ret = statmount(root_id, 0, mask, &sm, sizeof(sm), 0);
+	if (ret == -1) {
+		ksft_test_result_fail("statmount mnt basic: %s\n",
+				      strerror(errno));
+		return;
+	}
+	if (sm.size != sizeof(sm)) {
+		ksft_test_result_fail("unexpected size: %u != %u\n",
+				      sm.size, (uint32_t) sizeof(sm));
+		return;
+	}
+	if (sm.mask != mask) {
+		ksft_test_result_skip("statmount mnt basic unavailable\n");
+		return;
+	}
+
+	if (sm.mnt_id != root_id) {
+		ksft_test_result_fail("unexpected root ID: 0x%llx != 0x%llx\n",
+				      (unsigned long long) sm.mnt_id,
+				      (unsigned long long) root_id);
+		return;
+	}
+
+	if (sm.mnt_id_old != old_root_id) {
+		ksft_test_result_fail("unexpected old root ID: %u != %u\n",
+				      sm.mnt_id_old, old_root_id);
+		return;
+	}
+
+	if (sm.mnt_parent_id != parent_id) {
+		ksft_test_result_fail("unexpected parent ID: 0x%llx != 0x%llx\n",
+				      (unsigned long long) sm.mnt_parent_id,
+				      (unsigned long long) parent_id);
+		return;
+	}
+
+	if (sm.mnt_parent_id_old != old_parent_id) {
+		ksft_test_result_fail("unexpected old parent ID: %u != %u\n",
+				      sm.mnt_parent_id_old, old_parent_id);
+		return;
+	}
+
+	if (sm.mnt_propagation != MS_PRIVATE) {
+		ksft_test_result_fail("unexpected propagation: 0x%llx\n",
+				      (unsigned long long) sm.mnt_propagation);
+		return;
+	}
+
+	ksft_test_result_pass("statmount mnt basic\n");
+}
+
+
+static void test_statmount_sb_basic(void)
+{
+	struct statmount sm;
+	int ret;
+	uint64_t mask = STATMOUNT_SB_BASIC;
+	struct statx sx;
+	struct statfs sf;
+
+	ret = statmount(root_id, 0, mask, &sm, sizeof(sm), 0);
+	if (ret == -1) {
+		ksft_test_result_fail("statmount sb basic: %s\n",
+				      strerror(errno));
+		return;
+	}
+	if (sm.size != sizeof(sm)) {
+		ksft_test_result_fail("unexpected size: %u != %u\n",
+				      sm.size, (uint32_t) sizeof(sm));
+		return;
+	}
+	if (sm.mask != mask) {
+		ksft_test_result_skip("statmount sb basic unavailable\n");
+		return;
+	}
+
+	ret = statx(AT_FDCWD, "/", 0, 0, &sx);
+	if (ret == -1) {
+		ksft_test_result_fail("stat root failed: %s\n",
+				      strerror(errno));
+		return;
+	}
+
+	if (sm.sb_dev_major != sx.stx_dev_major ||
+	    sm.sb_dev_minor != sx.stx_dev_minor) {
+		ksft_test_result_fail("unexpected sb dev %u:%u != %u:%u\n",
+				      sm.sb_dev_major, sm.sb_dev_minor,
+				      sx.stx_dev_major, sx.stx_dev_minor);
+		return;
+	}
+
+	ret = statfs("/", &sf);
+	if (ret == -1) {
+		ksft_test_result_fail("statfs root failed: %s\n",
+				      strerror(errno));
+		return;
+	}
+
+	if (sm.sb_magic != sf.f_type) {
+		ksft_test_result_fail("unexpected sb magic: 0x%llx != 0x%lx\n",
+				      (unsigned long long) sm.sb_magic,
+				      sf.f_type);
+		return;
+	}
+
+	ksft_test_result_pass("statmount sb basic\n");
+}
+
+static void test_statmount_mnt_point(void)
+{
+	struct statmount *sm;
+
+	sm = statmount_alloc(root_id, STATMOUNT_MNT_POINT, 0);
+	if (!sm) {
+		ksft_test_result_fail("statmount mount point: %s\n",
+				      strerror(errno));
+		return;
+	}
+
+	if (!(sm->mask & STATMOUNT_MNT_POINT)) {
+		ksft_test_result_fail("missing STATMOUNT_MNT_POINT in mask\n");
+		return;
+	}
+	if (strcmp(sm->str + sm->mnt_point, "/") != 0) {
+		ksft_test_result_fail("unexpected mount point: '%s' != '/'\n",
+				      sm->str + sm->mnt_point);
+		goto out;
+	}
+	ksft_test_result_pass("statmount mount point\n");
+out:
+	free(sm);
+}
+
+static void test_statmount_mnt_root(void)
+{
+	struct statmount *sm;
+	const char *mnt_root, *last_dir, *last_root;
+
+	last_dir = strrchr(root_mntpoint, '/');
+	assert(last_dir);
+	last_dir++;
+
+	sm = statmount_alloc(root_id, STATMOUNT_MNT_ROOT, 0);
+	if (!sm) {
+		ksft_test_result_fail("statmount mount root: %s\n",
+				      strerror(errno));
+		return;
+	}
+	if (!(sm->mask & STATMOUNT_MNT_ROOT)) {
+		ksft_test_result_fail("missing STATMOUNT_MNT_ROOT in mask\n");
+		return;
+	}
+	mnt_root = sm->str + sm->mnt_root;
+	last_root = strrchr(mnt_root, '/');
+	if (last_root)
+		last_root++;
+	else
+		last_root = mnt_root;
+
+	if (strcmp(last_dir, last_root) != 0) {
+		ksft_test_result_fail("unexpected mount root last component: '%s' != '%s'\n",
+				      last_root, last_dir);
+		goto out;
+	}
+	ksft_test_result_pass("statmount mount root\n");
+out:
+	free(sm);
+}
+
+static void test_statmount_fs_type(void)
+{
+	struct statmount *sm;
+	const char *fs_type;
+	const char *const *s;
+
+	sm = statmount_alloc(root_id, STATMOUNT_FS_TYPE, 0);
+	if (!sm) {
+		ksft_test_result_fail("statmount fs type: %s\n",
+				      strerror(errno));
+		return;
+	}
+	if (!(sm->mask & STATMOUNT_FS_TYPE)) {
+		ksft_test_result_fail("missing STATMOUNT_FS_TYPE in mask\n");
+		return;
+	}
+	fs_type = sm->str + sm->fs_type;
+	for (s = known_fs; s != NULL; s++) {
+		if (strcmp(fs_type, *s) == 0)
+			break;
+	}
+	if (!s)
+		ksft_print_msg("unknown filesystem type: %s\n", fs_type);
+
+	ksft_test_result_pass("statmount fs type\n");
+	free(sm);
+}
+
+static void test_statmount_mnt_opts(void)
+{
+	struct statmount *sm;
+	const char *statmount_opts;
+	char *line = NULL;
+	size_t len = 0;
+
+	sm = statmount_alloc(root_id, STATMOUNT_MNT_BASIC | STATMOUNT_MNT_OPTS,
+			     0);
+	if (!sm) {
+		ksft_test_result_fail("statmount mnt opts: %s\n",
+				      strerror(errno));
+		return;
+	}
+
+	if (!(sm->mask & STATMOUNT_MNT_BASIC)) {
+		ksft_test_result_fail("missing STATMOUNT_MNT_BASIC in mask\n");
+		return;
+	}
+
+	while (getline(&line, &len, f_mountinfo) != -1) {
+		int i;
+		char *p, *p2;
+		unsigned int old_mnt_id;
+
+		old_mnt_id = atoi(line);
+		if (old_mnt_id != sm->mnt_id_old)
+			continue;
+
+		for (p = line, i = 0; p && i < 5; i++)
+			p = strchr(p + 1, ' ');
+		if (!p)
+			continue;
+
+		p2 = strchr(p + 1, ' ');
+		if (!p2)
+			continue;
+		*p2 = '\0';
+		p = strchr(p2 + 1, '-');
+		if (!p)
+			continue;
+		for (p++, i = 0; p && i < 2; i++)
+			p = strchr(p + 1, ' ');
+		if (!p)
+			continue;
+		p++;
+
+		/* skip generic superblock options */
+		if (strncmp(p, "ro", 2) == 0)
+			p += 2;
+		else if (strncmp(p, "rw", 2) == 0)
+			p += 2;
+		if (*p == ',')
+			p++;
+		if (strncmp(p, "sync", 4) == 0)
+			p += 4;
+		if (*p == ',')
+			p++;
+		if (strncmp(p, "dirsync", 7) == 0)
+			p += 7;
+		if (*p == ',')
+			p++;
+		if (strncmp(p, "lazytime", 8) == 0)
+			p += 8;
+		if (*p == ',')
+			p++;
+		p2 = strrchr(p, '\n');
+		if (p2)
+			*p2 = '\0';
+
+		if (sm->mask & STATMOUNT_MNT_OPTS)
+			statmount_opts = sm->str + sm->mnt_opts;
+		else
+			statmount_opts = "";
+		if (strcmp(statmount_opts, p) != 0)
+			ksft_test_result_fail(
+				"unexpected mount options: '%s' != '%s'\n",
+				statmount_opts, p);
+		else
+			ksft_test_result_pass("statmount mount options\n");
+		free(sm);
+		free(line);
+		return;
+	}
+
+	ksft_test_result_fail("didnt't find mount entry\n");
+	free(sm);
+	free(line);
+}
+
+static void test_statmount_string(uint64_t mask, size_t off, const char *name)
+{
+	struct statmount *sm;
+	size_t len, shortsize, exactsize;
+	uint32_t start, i;
+	int ret;
+
+	sm = statmount_alloc(root_id, mask, 0);
+	if (!sm) {
+		ksft_test_result_fail("statmount %s: %s\n", name,
+				      strerror(errno));
+		goto out;
+	}
+	if (sm->size < sizeof(*sm)) {
+		ksft_test_result_fail("unexpected size: %u < %u\n",
+				      sm->size, (uint32_t) sizeof(*sm));
+		goto out;
+	}
+	if (sm->mask != mask) {
+		ksft_test_result_skip("statmount %s unavailable\n", name);
+		goto out;
+	}
+	len = sm->size - sizeof(*sm);
+	start = ((uint32_t *) sm)[off];
+
+	for (i = start;; i++) {
+		if (i >= len) {
+			ksft_test_result_fail("string out of bounds\n");
+			goto out;
+		}
+		if (!sm->str[i])
+			break;
+	}
+	exactsize = sm->size;
+	shortsize = sizeof(*sm) + i;
+
+	ret = statmount(root_id, 0, mask, sm, exactsize, 0);
+	if (ret == -1) {
+		ksft_test_result_fail("statmount exact size: %s\n",
+				      strerror(errno));
+		goto out;
+	}
+	errno = 0;
+	ret = statmount(root_id, 0, mask, sm, shortsize, 0);
+	if (ret != -1 || errno != EOVERFLOW) {
+		ksft_test_result_fail("should have failed with EOVERFLOW: %s\n",
+				      strerror(errno));
+		goto out;
+	}
+
+	ksft_test_result_pass("statmount string %s\n", name);
+out:
+	free(sm);
+}
+
+static void test_listmount_tree(void)
+{
+	ssize_t res;
+	const unsigned int log2_num = 4;
+	const unsigned int step = 3;
+	const unsigned int size = (1 << log2_num) + step + 1;
+	size_t num, expect = 1 << log2_num;
+	uint64_t list[size];
+	uint64_t list2[size];
+	size_t i;
+
+
+	res = setup_mount_tree(log2_num);
+	if (res == -1)
+		return;
+
+	num = res = listmount(LSMT_ROOT, 0, 0, list, size, 0);
+	if (res == -1) {
+		ksft_test_result_fail("listmount: %s\n", strerror(errno));
+		return;
+	}
+	if (num != expect) {
+		ksft_test_result_fail("listmount result is %zi != %zi\n",
+				      res, expect);
+		return;
+	}
+
+	for (i = 0; i < size - step;) {
+		res = listmount(LSMT_ROOT, 0, i ? list2[i - 1] : 0, list2 + i, step, 0);
+		if (res == -1)
+			ksft_test_result_fail("short listmount: %s\n",
+					      strerror(errno));
+		i += res;
+		if (res < step)
+			break;
+	}
+	if (i != num) {
+		ksft_test_result_fail("different number of entries: %zu != %zu\n",
+				      i, num);
+		return;
+	}
+	for (i = 0; i < num; i++) {
+		if (list2[i] != list[i]) {
+			ksft_test_result_fail("different value for entry %zu: 0x%llx != 0x%llx\n",
+					      i,
+					      (unsigned long long) list2[i],
+					      (unsigned long long) list[i]);
+		}
+	}
+
+	ksft_test_result_pass("listmount tree\n");
+}
+
+#define str_off(memb) (offsetof(struct statmount, memb) / sizeof(uint32_t))
+
+int main(void)
+{
+	int ret;
+	uint64_t all_mask = STATMOUNT_SB_BASIC | STATMOUNT_MNT_BASIC |
+		STATMOUNT_PROPAGATE_FROM | STATMOUNT_MNT_ROOT |
+		STATMOUNT_MNT_POINT | STATMOUNT_FS_TYPE | STATMOUNT_MNT_NS_ID;
+
+	ksft_print_header();
+
+	ret = statmount(0, 0, 0, NULL, 0, 0);
+	assert(ret == -1);
+	if (errno == ENOSYS)
+		ksft_exit_skip("statmount() syscall not supported\n");
+
+	setup_namespace();
+
+	ksft_set_plan(15);
+	test_listmount_empty_root();
+	test_statmount_zero_mask();
+	test_statmount_mnt_basic();
+	test_statmount_sb_basic();
+	test_statmount_mnt_root();
+	test_statmount_mnt_point();
+	test_statmount_fs_type();
+	test_statmount_mnt_opts();
+	test_statmount_string(STATMOUNT_MNT_ROOT, str_off(mnt_root), "mount root");
+	test_statmount_string(STATMOUNT_MNT_POINT, str_off(mnt_point), "mount point");
+	test_statmount_string(STATMOUNT_FS_TYPE, str_off(fs_type), "fs type");
+	test_statmount_string(all_mask, str_off(mnt_root), "mount root & all");
+	test_statmount_string(all_mask, str_off(mnt_point), "mount point & all");
+	test_statmount_string(all_mask, str_off(fs_type), "fs type & all");
+
+	test_listmount_tree();
+
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/filesystems/statmount/statmount_test_ns.c b/tools/testing/selftests/filesystems/statmount/statmount_test_ns.c
new file mode 100644
index 000000000000..d56d4103182f
--- /dev/null
+++ b/tools/testing/selftests/filesystems/statmount/statmount_test_ns.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <linux/nsfs.h>
+#include <linux/stat.h>
+
+#include "statmount.h"
+#include "../utils.h"
+#include "kselftest.h"
+
+#define NSID_PASS 0
+#define NSID_FAIL 1
+#define NSID_SKIP 2
+#define NSID_ERROR 3
+
+static void handle_result(int ret, const char *testname)
+{
+	if (ret == NSID_PASS)
+		ksft_test_result_pass("%s\n", testname);
+	else if (ret == NSID_FAIL)
+		ksft_test_result_fail("%s\n", testname);
+	else if (ret == NSID_ERROR)
+		ksft_exit_fail_msg("%s\n", testname);
+	else
+		ksft_test_result_skip("%s\n", testname);
+}
+
+static inline int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		ksft_print_msg("waitpid returned -1, errno=%d\n", errno);
+		return -1;
+	}
+
+	if (!WIFEXITED(status)) {
+		ksft_print_msg(
+		       "waitpid !WIFEXITED, WIFSIGNALED=%d, WTERMSIG=%d\n",
+		       WIFSIGNALED(status), WTERMSIG(status));
+		return -1;
+	}
+
+	ret = WEXITSTATUS(status);
+	return ret;
+}
+
+static int get_mnt_ns_id(const char *mnt_ns, uint64_t *mnt_ns_id)
+{
+	int fd = open(mnt_ns, O_RDONLY);
+
+	if (fd < 0) {
+		ksft_print_msg("failed to open for ns %s: %s\n",
+			       mnt_ns, strerror(errno));
+		sleep(60);
+		return NSID_ERROR;
+	}
+
+	if (ioctl(fd, NS_GET_MNTNS_ID, mnt_ns_id) < 0) {
+		ksft_print_msg("failed to get the nsid for ns %s: %s\n",
+			       mnt_ns, strerror(errno));
+		return NSID_ERROR;
+	}
+	close(fd);
+	return NSID_PASS;
+}
+
+static int setup_namespace(void)
+{
+	if (setup_userns() != 0)
+		return NSID_ERROR;
+
+	return NSID_PASS;
+}
+
+static int _test_statmount_mnt_ns_id(void)
+{
+	struct statmount sm;
+	uint64_t mnt_ns_id;
+	uint64_t root_id;
+	int ret;
+
+	ret = get_mnt_ns_id("/proc/self/ns/mnt", &mnt_ns_id);
+	if (ret != NSID_PASS)
+		return ret;
+
+	root_id = get_unique_mnt_id("/");
+	if (!root_id)
+		return NSID_ERROR;
+
+	ret = statmount(root_id, 0, STATMOUNT_MNT_NS_ID, &sm, sizeof(sm), 0);
+	if (ret == -1) {
+		ksft_print_msg("statmount mnt ns id: %s\n", strerror(errno));
+		return NSID_ERROR;
+	}
+
+	if (sm.size != sizeof(sm)) {
+		ksft_print_msg("unexpected size: %u != %u\n", sm.size,
+			       (uint32_t)sizeof(sm));
+		return NSID_FAIL;
+	}
+	if (sm.mask != STATMOUNT_MNT_NS_ID) {
+		ksft_print_msg("statmount mnt ns id unavailable\n");
+		return NSID_SKIP;
+	}
+
+	if (sm.mnt_ns_id != mnt_ns_id) {
+		ksft_print_msg("unexpected mnt ns ID: 0x%llx != 0x%llx\n",
+			       (unsigned long long)sm.mnt_ns_id,
+			       (unsigned long long)mnt_ns_id);
+		return NSID_FAIL;
+	}
+
+	return NSID_PASS;
+}
+
+static void test_statmount_mnt_ns_id(void)
+{
+	pid_t pid;
+	int ret;
+
+	pid = fork();
+	if (pid < 0)
+		ksft_exit_fail_msg("failed to fork: %s\n", strerror(errno));
+
+	/* We're the original pid, wait for the result. */
+	if (pid != 0) {
+		ret = wait_for_pid(pid);
+		handle_result(ret, "test statmount ns id");
+		return;
+	}
+
+	ret = setup_namespace();
+	if (ret != NSID_PASS)
+		exit(ret);
+	ret = _test_statmount_mnt_ns_id();
+	exit(ret);
+}
+
+static int validate_external_listmount(pid_t pid, uint64_t child_nr_mounts)
+{
+	uint64_t list[256];
+	uint64_t mnt_ns_id;
+	uint64_t nr_mounts;
+	char buf[256];
+	int ret;
+
+	/* Get the mount ns id for our child. */
+	snprintf(buf, sizeof(buf), "/proc/%lu/ns/mnt", (unsigned long)pid);
+	ret = get_mnt_ns_id(buf, &mnt_ns_id);
+
+	nr_mounts = listmount(LSMT_ROOT, mnt_ns_id, 0, list, 256, 0);
+	if (nr_mounts == (uint64_t)-1) {
+		ksft_print_msg("listmount: %s\n", strerror(errno));
+		return NSID_ERROR;
+	}
+
+	if (nr_mounts != child_nr_mounts) {
+		ksft_print_msg("listmount results is %zi != %zi\n", nr_mounts,
+			       child_nr_mounts);
+		return NSID_FAIL;
+	}
+
+	/* Validate that all of our entries match our mnt_ns_id. */
+	for (int i = 0; i < nr_mounts; i++) {
+		struct statmount sm;
+
+		ret = statmount(list[i], mnt_ns_id, STATMOUNT_MNT_NS_ID, &sm,
+				sizeof(sm), 0);
+		if (ret < 0) {
+			ksft_print_msg("statmount mnt ns id: %s\n", strerror(errno));
+			return NSID_ERROR;
+		}
+
+		if (sm.mask != STATMOUNT_MNT_NS_ID) {
+			ksft_print_msg("statmount mnt ns id unavailable\n");
+			return NSID_SKIP;
+		}
+
+		if (sm.mnt_ns_id != mnt_ns_id) {
+			ksft_print_msg("listmount gave us the wrong ns id: 0x%llx != 0x%llx\n",
+				       (unsigned long long)sm.mnt_ns_id,
+				       (unsigned long long)mnt_ns_id);
+			return NSID_FAIL;
+		}
+	}
+
+	return NSID_PASS;
+}
+
+static void test_listmount_ns(void)
+{
+	uint64_t nr_mounts;
+	char pval;
+	int child_ready_pipe[2];
+	int parent_ready_pipe[2];
+	pid_t pid;
+	int ret, child_ret;
+
+	if (pipe(child_ready_pipe) < 0)
+		ksft_exit_fail_msg("failed to create the child pipe: %s\n",
+				   strerror(errno));
+	if (pipe(parent_ready_pipe) < 0)
+		ksft_exit_fail_msg("failed to create the parent pipe: %s\n",
+				   strerror(errno));
+
+	pid = fork();
+	if (pid < 0)
+		ksft_exit_fail_msg("failed to fork: %s\n", strerror(errno));
+
+	if (pid == 0) {
+		char cval;
+		uint64_t list[256];
+
+		close(child_ready_pipe[0]);
+		close(parent_ready_pipe[1]);
+
+		ret = setup_namespace();
+		if (ret != NSID_PASS)
+			exit(ret);
+
+		nr_mounts = listmount(LSMT_ROOT, 0, 0, list, 256, 0);
+		if (nr_mounts == (uint64_t)-1) {
+			ksft_print_msg("listmount: %s\n", strerror(errno));
+			exit(NSID_FAIL);
+		}
+
+		/*
+		 * Tell our parent how many mounts we have, and then wait for it
+		 * to tell us we're done.
+		 */
+		if (write(child_ready_pipe[1], &nr_mounts, sizeof(nr_mounts)) !=
+					sizeof(nr_mounts))
+			ret = NSID_ERROR;
+		if (read(parent_ready_pipe[0], &cval, sizeof(cval)) != sizeof(cval))
+			ret = NSID_ERROR;
+		exit(NSID_PASS);
+	}
+
+	close(child_ready_pipe[1]);
+	close(parent_ready_pipe[0]);
+
+	/* Wait until the child has created everything. */
+	if (read(child_ready_pipe[0], &nr_mounts, sizeof(nr_mounts)) !=
+	    sizeof(nr_mounts))
+		ret = NSID_ERROR;
+
+	ret = validate_external_listmount(pid, nr_mounts);
+
+	if (write(parent_ready_pipe[1], &pval, sizeof(pval)) != sizeof(pval))
+		ret = NSID_ERROR;
+
+	child_ret = wait_for_pid(pid);
+	if (child_ret != NSID_PASS)
+		ret = child_ret;
+	handle_result(ret, "test listmount ns id");
+}
+
+int main(void)
+{
+	int ret;
+
+	ksft_print_header();
+	ret = statmount(0, 0, 0, NULL, 0, 0);
+	assert(ret == -1);
+	if (errno == ENOSYS)
+		ksft_exit_skip("statmount() syscall not supported\n");
+
+	ksft_set_plan(2);
+	test_statmount_mnt_ns_id();
+	test_listmount_ns();
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/filesystems/utils.c b/tools/testing/selftests/filesystems/utils.c
new file mode 100644
index 000000000000..c9dd5412b37b
--- /dev/null
+++ b/tools/testing/selftests/filesystems/utils.c
@@ -0,0 +1,589 @@
+// SPDX-License-Identifier: GPL-2.0
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <fcntl.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <grp.h>
+#include <linux/limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/eventfd.h>
+#include <sys/fsuid.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/xattr.h>
+#include <sys/mount.h>
+
+#include "kselftest.h"
+#include "wrappers.h"
+#include "utils.h"
+
+#define MAX_USERNS_LEVEL 32
+
+#define syserror(format, ...)                           \
+	({                                              \
+		fprintf(stderr, "%m - " format "\n", ##__VA_ARGS__); \
+		(-errno);                               \
+	})
+
+#define syserror_set(__ret__, format, ...)                    \
+	({                                                    \
+		typeof(__ret__) __internal_ret__ = (__ret__); \
+		errno = labs(__ret__);                        \
+		fprintf(stderr, "%m - " format "\n", ##__VA_ARGS__);       \
+		__internal_ret__;                             \
+	})
+
+#define STRLITERALLEN(x) (sizeof(""x"") - 1)
+
+#define INTTYPE_TO_STRLEN(type)             \
+	(2 + (sizeof(type) <= 1             \
+		  ? 3                       \
+		  : sizeof(type) <= 2       \
+			? 5                 \
+			: sizeof(type) <= 4 \
+			      ? 10          \
+			      : sizeof(type) <= 8 ? 20 : sizeof(int[-2 * (sizeof(type) > 8)])))
+
+#define list_for_each(__iterator, __list) \
+	for (__iterator = (__list)->next; __iterator != __list; __iterator = __iterator->next)
+
+typedef enum idmap_type_t {
+	ID_TYPE_UID,
+	ID_TYPE_GID
+} idmap_type_t;
+
+struct id_map {
+	idmap_type_t map_type;
+	__u32 nsid;
+	__u32 hostid;
+	__u32 range;
+};
+
+struct list {
+	void *elem;
+	struct list *next;
+	struct list *prev;
+};
+
+struct userns_hierarchy {
+	int fd_userns;
+	int fd_event;
+	unsigned int level;
+	struct list id_map;
+};
+
+static inline void list_init(struct list *list)
+{
+	list->elem = NULL;
+	list->next = list->prev = list;
+}
+
+static inline int list_empty(const struct list *list)
+{
+	return list == list->next;
+}
+
+static inline void __list_add(struct list *new, struct list *prev, struct list *next)
+{
+	next->prev = new;
+	new->next = next;
+	new->prev = prev;
+	prev->next = new;
+}
+
+static inline void list_add_tail(struct list *head, struct list *list)
+{
+	__list_add(list, head->prev, head);
+}
+
+static inline void list_del(struct list *list)
+{
+	struct list *next, *prev;
+
+	next = list->next;
+	prev = list->prev;
+	next->prev = prev;
+	prev->next = next;
+}
+
+static ssize_t read_nointr(int fd, void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = read(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+#define __STACK_SIZE (8 * 1024 * 1024)
+static pid_t do_clone(int (*fn)(void *), void *arg, int flags)
+{
+	void *stack;
+
+	stack = malloc(__STACK_SIZE);
+	if (!stack)
+		return -ENOMEM;
+
+#ifdef __ia64__
+	return __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#else
+	return clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#endif
+}
+
+static int get_userns_fd_cb(void *data)
+{
+	for (;;)
+		pause();
+	_exit(0);
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static int write_id_mapping(idmap_type_t map_type, pid_t pid, const char *buf, size_t buf_size)
+{
+	int fd = -EBADF, setgroups_fd = -EBADF;
+	int fret = -1;
+	int ret;
+	char path[STRLITERALLEN("/proc/") + INTTYPE_TO_STRLEN(pid_t) +
+		  STRLITERALLEN("/setgroups") + 1];
+
+	if (geteuid() != 0 && map_type == ID_TYPE_GID) {
+		ret = snprintf(path, sizeof(path), "/proc/%d/setgroups", pid);
+		if (ret < 0 || ret >= sizeof(path))
+			goto out;
+
+		setgroups_fd = open(path, O_WRONLY | O_CLOEXEC);
+		if (setgroups_fd < 0 && errno != ENOENT) {
+			syserror("Failed to open \"%s\"", path);
+			goto out;
+		}
+
+		if (setgroups_fd >= 0) {
+			ret = write_nointr(setgroups_fd, "deny\n", STRLITERALLEN("deny\n"));
+			if (ret != STRLITERALLEN("deny\n")) {
+				syserror("Failed to write \"deny\" to \"/proc/%d/setgroups\"", pid);
+				goto out;
+			}
+		}
+	}
+
+	ret = snprintf(path, sizeof(path), "/proc/%d/%cid_map", pid, map_type == ID_TYPE_UID ? 'u' : 'g');
+	if (ret < 0 || ret >= sizeof(path))
+		goto out;
+
+	fd = open(path, O_WRONLY | O_CLOEXEC);
+	if (fd < 0) {
+		syserror("Failed to open \"%s\"", path);
+		goto out;
+	}
+
+	ret = write_nointr(fd, buf, buf_size);
+	if (ret != buf_size) {
+		syserror("Failed to write %cid mapping to \"%s\"",
+			 map_type == ID_TYPE_UID ? 'u' : 'g', path);
+		goto out;
+	}
+
+	fret = 0;
+out:
+	close(fd);
+	close(setgroups_fd);
+
+	return fret;
+}
+
+static int map_ids_from_idmap(struct list *idmap, pid_t pid)
+{
+	int fill, left;
+	char mapbuf[4096] = {};
+	bool had_entry = false;
+	idmap_type_t map_type, u_or_g;
+
+	if (list_empty(idmap))
+		return 0;
+
+	for (map_type = ID_TYPE_UID, u_or_g = 'u';
+	     map_type <= ID_TYPE_GID; map_type++, u_or_g = 'g') {
+		char *pos = mapbuf;
+		int ret;
+		struct list *iterator;
+
+
+		list_for_each(iterator, idmap) {
+			struct id_map *map = iterator->elem;
+			if (map->map_type != map_type)
+				continue;
+
+			had_entry = true;
+
+			left = 4096 - (pos - mapbuf);
+			fill = snprintf(pos, left, "%u %u %u\n", map->nsid, map->hostid, map->range);
+			/*
+			 * The kernel only takes <= 4k for writes to
+			 * /proc/<pid>/{g,u}id_map
+			 */
+			if (fill <= 0 || fill >= left)
+				return syserror_set(-E2BIG, "Too many %cid mappings defined", u_or_g);
+
+			pos += fill;
+		}
+		if (!had_entry)
+			continue;
+
+		ret = write_id_mapping(map_type, pid, mapbuf, pos - mapbuf);
+		if (ret < 0)
+			return syserror("Failed to write mapping: %s", mapbuf);
+
+		memset(mapbuf, 0, sizeof(mapbuf));
+	}
+
+	return 0;
+}
+
+static int get_userns_fd_from_idmap(struct list *idmap)
+{
+	int ret;
+	pid_t pid;
+	char path_ns[STRLITERALLEN("/proc/") + INTTYPE_TO_STRLEN(pid_t) +
+		     STRLITERALLEN("/ns/user") + 1];
+
+	pid = do_clone(get_userns_fd_cb, NULL, CLONE_NEWUSER | CLONE_NEWNS);
+	if (pid < 0)
+		return -errno;
+
+	ret = map_ids_from_idmap(idmap, pid);
+	if (ret < 0)
+		return ret;
+
+	ret = snprintf(path_ns, sizeof(path_ns), "/proc/%d/ns/user", pid);
+	if (ret < 0 || (size_t)ret >= sizeof(path_ns))
+		ret = -EIO;
+	else
+		ret = open(path_ns, O_RDONLY | O_CLOEXEC | O_NOCTTY);
+
+	(void)kill(pid, SIGKILL);
+	(void)wait_for_pid(pid);
+	return ret;
+}
+
+int get_userns_fd(unsigned long nsid, unsigned long hostid, unsigned long range)
+{
+	struct list head, uid_mapl, gid_mapl;
+	struct id_map uid_map = {
+		.map_type	= ID_TYPE_UID,
+		.nsid		= nsid,
+		.hostid		= hostid,
+		.range		= range,
+	};
+	struct id_map gid_map = {
+		.map_type	= ID_TYPE_GID,
+		.nsid		= nsid,
+		.hostid		= hostid,
+		.range		= range,
+	};
+
+	list_init(&head);
+	uid_mapl.elem = &uid_map;
+	gid_mapl.elem = &gid_map;
+	list_add_tail(&head, &uid_mapl);
+	list_add_tail(&head, &gid_mapl);
+
+	return get_userns_fd_from_idmap(&head);
+}
+
+bool switch_ids(uid_t uid, gid_t gid)
+{
+	if (setgroups(0, NULL))
+		return syserror("failure: setgroups");
+
+	if (setresgid(gid, gid, gid))
+		return syserror("failure: setresgid");
+
+	if (setresuid(uid, uid, uid))
+		return syserror("failure: setresuid");
+
+	/* Ensure we can access proc files from processes we can ptrace. */
+	if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0))
+		return syserror("failure: make dumpable");
+
+	return true;
+}
+
+static int create_userns_hierarchy(struct userns_hierarchy *h);
+
+static int userns_fd_cb(void *data)
+{
+	struct userns_hierarchy *h = data;
+	char c;
+	int ret;
+
+	ret = read_nointr(h->fd_event, &c, 1);
+	if (ret < 0)
+		return syserror("failure: read from socketpair");
+
+	/* Only switch ids if someone actually wrote a mapping for us. */
+	if (c == '1') {
+		if (!switch_ids(0, 0))
+			return syserror("failure: switch ids to 0");
+	}
+
+	ret = write_nointr(h->fd_event, "1", 1);
+	if (ret < 0)
+		return syserror("failure: write to socketpair");
+
+	ret = create_userns_hierarchy(++h);
+	if (ret < 0)
+		return syserror("failure: userns level %d", h->level);
+
+	return 0;
+}
+
+static int create_userns_hierarchy(struct userns_hierarchy *h)
+{
+	int fret = -1;
+	char c;
+	int fd_socket[2];
+	int fd_userns = -EBADF, ret = -1;
+	ssize_t bytes;
+	pid_t pid;
+	char path[256];
+
+	if (h->level == MAX_USERNS_LEVEL)
+		return 0;
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, fd_socket);
+	if (ret < 0)
+		return syserror("failure: create socketpair");
+
+	/* Note the CLONE_FILES | CLONE_VM when mucking with fds and memory. */
+	h->fd_event = fd_socket[1];
+	pid = do_clone(userns_fd_cb, h, CLONE_NEWUSER | CLONE_FILES | CLONE_VM);
+	if (pid < 0) {
+		syserror("failure: userns level %d", h->level);
+		goto out_close;
+	}
+
+	ret = map_ids_from_idmap(&h->id_map, pid);
+	if (ret < 0) {
+		kill(pid, SIGKILL);
+		syserror("failure: writing id mapping for userns level %d for %d", h->level, pid);
+		goto out_wait;
+	}
+
+	if (!list_empty(&h->id_map))
+		bytes = write_nointr(fd_socket[0], "1", 1); /* Inform the child we wrote a mapping. */
+	else
+		bytes = write_nointr(fd_socket[0], "0", 1); /* Inform the child we didn't write a mapping. */
+	if (bytes < 0) {
+		kill(pid, SIGKILL);
+		syserror("failure: write to socketpair");
+		goto out_wait;
+	}
+
+	/* Wait for child to set*id() and become dumpable. */
+	bytes = read_nointr(fd_socket[0], &c, 1);
+	if (bytes < 0) {
+		kill(pid, SIGKILL);
+		syserror("failure: read from socketpair");
+		goto out_wait;
+	}
+
+	snprintf(path, sizeof(path), "/proc/%d/ns/user", pid);
+	fd_userns = open(path, O_RDONLY | O_CLOEXEC);
+	if (fd_userns < 0) {
+		kill(pid, SIGKILL);
+		syserror("failure: open userns level %d for %d", h->level, pid);
+		goto out_wait;
+	}
+
+	fret = 0;
+
+out_wait:
+	if (!wait_for_pid(pid) && !fret) {
+		h->fd_userns = fd_userns;
+		fd_userns = -EBADF;
+	}
+
+out_close:
+	if (fd_userns >= 0)
+		close(fd_userns);
+	close(fd_socket[0]);
+	close(fd_socket[1]);
+	return fret;
+}
+
+static int write_file(const char *path, const char *val)
+{
+	int fd = open(path, O_WRONLY);
+	size_t len = strlen(val);
+	int ret;
+
+	if (fd == -1) {
+		ksft_print_msg("opening %s for write: %s\n", path, strerror(errno));
+		return -1;
+	}
+
+	ret = write(fd, val, len);
+	if (ret == -1) {
+		ksft_print_msg("writing to %s: %s\n", path, strerror(errno));
+		return -1;
+	}
+	if (ret != len) {
+		ksft_print_msg("short write to %s\n", path);
+		return -1;
+	}
+
+	ret = close(fd);
+	if (ret == -1) {
+		ksft_print_msg("closing %s\n", path);
+		return -1;
+	}
+
+	return 0;
+}
+
+int setup_userns(void)
+{
+	int ret;
+	char buf[32];
+	uid_t uid = getuid();
+	gid_t gid = getgid();
+
+	ret = unshare(CLONE_NEWNS|CLONE_NEWUSER);
+	if (ret) {
+		ksft_exit_fail_msg("unsharing mountns and userns: %s\n",
+				   strerror(errno));
+		return ret;
+	}
+
+	sprintf(buf, "0 %d 1", uid);
+	ret = write_file("/proc/self/uid_map", buf);
+	if (ret)
+		return ret;
+	ret = write_file("/proc/self/setgroups", "deny");
+	if (ret)
+		return ret;
+	sprintf(buf, "0 %d 1", gid);
+	ret = write_file("/proc/self/gid_map", buf);
+	if (ret)
+		return ret;
+
+	ret = mount("", "/", NULL, MS_REC|MS_PRIVATE, NULL);
+	if (ret) {
+		ksft_print_msg("making mount tree private: %s\n", strerror(errno));
+		return ret;
+	}
+
+	return 0;
+}
+
+/* caps_down - lower all effective caps */
+int caps_down(void)
+{
+	bool fret = false;
+	cap_t caps = NULL;
+	int ret = -1;
+
+	caps = cap_get_proc();
+	if (!caps)
+		goto out;
+
+	ret = cap_clear_flag(caps, CAP_EFFECTIVE);
+	if (ret)
+		goto out;
+
+	ret = cap_set_proc(caps);
+	if (ret)
+		goto out;
+
+	fret = true;
+
+out:
+	cap_free(caps);
+	return fret;
+}
+
+/* cap_down - lower an effective cap */
+int cap_down(cap_value_t down)
+{
+	bool fret = false;
+	cap_t caps = NULL;
+	cap_value_t cap = down;
+	int ret = -1;
+
+	caps = cap_get_proc();
+	if (!caps)
+		goto out;
+
+	ret = cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap, 0);
+	if (ret)
+		goto out;
+
+	ret = cap_set_proc(caps);
+	if (ret)
+		goto out;
+
+	fret = true;
+
+out:
+	cap_free(caps);
+	return fret;
+}
+
+uint64_t get_unique_mnt_id(const char *path)
+{
+	struct statx sx;
+	int ret;
+
+	ret = statx(AT_FDCWD, path, 0, STATX_MNT_ID_UNIQUE, &sx);
+	if (ret == -1) {
+		ksft_print_msg("retrieving unique mount ID for %s: %s\n", path,
+			 strerror(errno));
+		return 0;
+	}
+
+	if (!(sx.stx_mask & STATX_MNT_ID_UNIQUE)) {
+		ksft_print_msg("no unique mount ID available for %s\n", path);
+		return 0;
+	}
+
+	return sx.stx_mnt_id;
+}
diff --git a/tools/testing/selftests/filesystems/utils.h b/tools/testing/selftests/filesystems/utils.h
new file mode 100644
index 000000000000..70f7ccc607f4
--- /dev/null
+++ b/tools/testing/selftests/filesystems/utils.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __IDMAP_UTILS_H
+#define __IDMAP_UTILS_H
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <errno.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/capability.h>
+#include <sys/fsuid.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+extern int get_userns_fd(unsigned long nsid, unsigned long hostid,
+			 unsigned long range);
+
+extern int caps_down(void);
+extern int cap_down(cap_value_t down);
+
+extern bool switch_ids(uid_t uid, gid_t gid);
+extern int setup_userns(void);
+
+static inline bool switch_userns(int fd, uid_t uid, gid_t gid, bool drop_caps)
+{
+	if (setns(fd, CLONE_NEWUSER))
+		return false;
+
+	if (!switch_ids(uid, gid))
+		return false;
+
+	if (drop_caps && !caps_down())
+		return false;
+
+	return true;
+}
+
+extern uint64_t get_unique_mnt_id(const char *path);
+
+#endif /* __IDMAP_UTILS_H */
diff --git a/tools/testing/selftests/filesystems/wrappers.h b/tools/testing/selftests/filesystems/wrappers.h
new file mode 100644
index 000000000000..420ae4f908cf
--- /dev/null
+++ b/tools/testing/selftests/filesystems/wrappers.h
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+#ifndef __SELFTEST_OVERLAYFS_WRAPPERS_H__
+#define __SELFTEST_OVERLAYFS_WRAPPERS_H__
+
+#define _GNU_SOURCE
+
+#include <linux/types.h>
+#include <linux/mount.h>
+#include <sys/syscall.h>
+
+#ifndef STATX_MNT_ID_UNIQUE
+#define STATX_MNT_ID_UNIQUE 0x00004000U /* Want/got extended stx_mount_id */
+#endif
+
+static inline int sys_fsopen(const char *fsname, unsigned int flags)
+{
+	return syscall(__NR_fsopen, fsname, flags);
+}
+
+static inline int sys_fsconfig(int fd, unsigned int cmd, const char *key,
+			       const char *value, int aux)
+{
+	return syscall(__NR_fsconfig, fd, cmd, key, value, aux);
+}
+
+static inline int sys_fsmount(int fd, unsigned int flags,
+			      unsigned int attr_flags)
+{
+	return syscall(__NR_fsmount, fd, flags, attr_flags);
+}
+
+static inline int sys_mount(const char *src, const char *tgt, const char *fst,
+			    unsigned long flags, const void *data)
+{
+	return syscall(__NR_mount, src, tgt, fst, flags, data);
+}
+
+#ifndef MOVE_MOUNT_F_EMPTY_PATH
+#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004 /* Empty from path permitted */
+#endif
+
+#ifndef MOVE_MOUNT_T_EMPTY_PATH
+#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040 /* Empty to path permitted */
+#endif
+
+#ifndef __NR_move_mount
+	#if defined __alpha__
+		#define __NR_move_mount 539
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_move_mount 4429
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_move_mount 6429
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_move_mount 5429
+		#endif
+	#else
+		#define __NR_move_mount 429
+	#endif
+#endif
+
+static inline int sys_move_mount(int from_dfd, const char *from_pathname,
+				 int to_dfd, const char *to_pathname,
+				 unsigned int flags)
+{
+	return syscall(__NR_move_mount, from_dfd, from_pathname, to_dfd,
+		       to_pathname, flags);
+}
+
+#ifndef OPEN_TREE_CLONE
+#define OPEN_TREE_CLONE 1
+#endif
+
+#ifndef OPEN_TREE_CLOEXEC
+#define OPEN_TREE_CLOEXEC O_CLOEXEC
+#endif
+
+#ifndef AT_RECURSIVE
+#define AT_RECURSIVE 0x8000 /* Apply to the entire subtree */
+#endif
+
+#ifndef __NR_open_tree
+	#if defined __alpha__
+		#define __NR_open_tree 538
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_open_tree 4428
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_open_tree 6428
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_open_tree 5428
+		#endif
+	#else
+		#define __NR_open_tree 428
+	#endif
+#endif
+
+static inline int sys_open_tree(int dfd, const char *filename, unsigned int flags)
+{
+	return syscall(__NR_open_tree, dfd, filename, flags);
+}
+
+#endif
diff --git a/tools/testing/selftests/firmware/.gitignore b/tools/testing/selftests/firmware/.gitignore
new file mode 100644
index 000000000000..62abc92a94c4
--- /dev/null
+++ b/tools/testing/selftests/firmware/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+fw_namespace
diff --git a/tools/testing/selftests/firmware/Makefile b/tools/testing/selftests/firmware/Makefile
index 9bf82234855b..7992969deaa2 100644
--- a/tools/testing/selftests/firmware/Makefile
+++ b/tools/testing/selftests/firmware/Makefile
@@ -1,11 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile for firmware loading selftests
+CFLAGS = -Wall \
+         -O2
 
-# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
-all:
-
-TEST_PROGS := fw_filesystem.sh fw_userhelper.sh
+TEST_PROGS := fw_run_tests.sh
+TEST_FILES := fw_fallback.sh fw_filesystem.sh fw_upload.sh fw_lib.sh
+TEST_GEN_FILES := fw_namespace
 
 include ../lib.mk
-
-# Nothing to clean up.
-clean:
diff --git a/tools/testing/selftests/firmware/config b/tools/testing/selftests/firmware/config
new file mode 100644
index 000000000000..6e402519b117
--- /dev/null
+++ b/tools/testing/selftests/firmware/config
@@ -0,0 +1,6 @@
+CONFIG_TEST_FIRMWARE=y
+CONFIG_FW_LOADER=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_FW_UPLOAD=y
diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
new file mode 100755
index 000000000000..70d18be46af5
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -0,0 +1,283 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# This validates that the kernel will fall back to using the fallback mechanism
+# to load firmware it can't find on disk itself. We must request a firmware
+# that the kernel won't find, and any installed helper (e.g. udev) also
+# won't find so that we can do the load ourself manually.
+set -e
+
+TEST_REQS_FW_SYSFS_FALLBACK="yes"
+TEST_REQS_FW_SET_CUSTOM_PATH="no"
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
+
+check_mods
+check_setup
+verify_reqs
+setup_tmp_file
+
+trap "test_finish" EXIT
+
+load_fw()
+{
+	local name="$1"
+	local file="$2"
+
+	# This will block until our load (below) has finished.
+	echo -n "$name" >"$DIR"/trigger_request &
+
+	# Give kernel a chance to react.
+	local timeout=10
+	while [ ! -e "$DIR"/"$name"/loading ]; do
+		sleep 0.1
+		timeout=$(( $timeout - 1 ))
+		if [ "$timeout" -eq 0 ]; then
+			echo "$0: firmware interface never appeared" >&2
+			exit 1
+		fi
+	done
+
+	echo 1 >"$DIR"/"$name"/loading
+	cat "$file" >"$DIR"/"$name"/data
+	echo 0 >"$DIR"/"$name"/loading
+
+	# Wait for request to finish.
+	wait
+}
+
+load_fw_cancel()
+{
+	local name="$1"
+	local file="$2"
+
+	# This will block until our load (below) has finished.
+	echo -n "$name" >"$DIR"/trigger_request 2>/dev/null &
+
+	# Give kernel a chance to react.
+	local timeout=10
+	while [ ! -e "$DIR"/"$name"/loading ]; do
+		sleep 0.1
+		timeout=$(( $timeout - 1 ))
+		if [ "$timeout" -eq 0 ]; then
+			echo "$0: firmware interface never appeared" >&2
+			exit 1
+		fi
+	done
+
+	echo -1 >"$DIR"/"$name"/loading
+
+	# Wait for request to finish.
+	wait
+}
+
+load_fw_custom()
+{
+	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
+		echo "$0: custom fallback trigger not present, ignoring test" >&2
+		exit $ksft_skip
+	fi
+
+	local name="$1"
+	local file="$2"
+
+	echo -n "$name" >"$DIR"/trigger_custom_fallback 2>/dev/null &
+
+	# Give kernel a chance to react.
+	local timeout=10
+	while [ ! -e "$DIR"/"$name"/loading ]; do
+		sleep 0.1
+		timeout=$(( $timeout - 1 ))
+		if [ "$timeout" -eq 0 ]; then
+			echo "$0: firmware interface never appeared" >&2
+			exit 1
+		fi
+	done
+
+	echo 1 >"$DIR"/"$name"/loading
+	cat "$file" >"$DIR"/"$name"/data
+	echo 0 >"$DIR"/"$name"/loading
+
+	# Wait for request to finish.
+	wait
+	return 0
+}
+
+
+load_fw_custom_cancel()
+{
+	if [ ! -e "$DIR"/trigger_custom_fallback ]; then
+		echo "$0: canceling custom fallback trigger not present, ignoring test" >&2
+		exit $ksft_skip
+	fi
+
+	local name="$1"
+	local file="$2"
+
+	echo -n "$name" >"$DIR"/trigger_custom_fallback 2>/dev/null &
+
+	# Give kernel a chance to react.
+	local timeout=10
+	while [ ! -e "$DIR"/"$name"/loading ]; do
+		sleep 0.1
+		timeout=$(( $timeout - 1 ))
+		if [ "$timeout" -eq 0 ]; then
+			echo "$0: firmware interface never appeared" >&2
+			exit 1
+		fi
+	done
+
+	echo -1 >"$DIR"/"$name"/loading
+
+	# Wait for request to finish.
+	wait
+	return 0
+}
+
+load_fw_fallback_with_child()
+{
+	local name="$1"
+	local file="$2"
+
+	# This is the value already set but we want to be explicit
+	echo 4 >/sys/class/firmware/timeout
+
+	sleep 1 &
+	SECONDS_BEFORE=$(date +%s)
+	echo -n "$name" >"$DIR"/trigger_request 2>/dev/null
+	SECONDS_AFTER=$(date +%s)
+	SECONDS_DELTA=$(($SECONDS_AFTER - $SECONDS_BEFORE))
+	if [ "$SECONDS_DELTA" -lt 4 ]; then
+		RET=1
+	else
+		RET=0
+	fi
+	wait
+	return $RET
+}
+
+test_syfs_timeout()
+{
+	DEVPATH="$DIR"/"nope-$NAME"/loading
+
+	# Test failure when doing nothing (timeout works).
+	echo -n 2 >/sys/class/firmware/timeout
+	echo -n "nope-$NAME" >"$DIR"/trigger_request 2>/dev/null &
+
+	# Give the kernel some time to load the loading file, must be less
+	# than the timeout above.
+	sleep 1
+	if [ ! -f $DEVPATH ]; then
+		echo "$0: fallback mechanism immediately cancelled"
+		echo ""
+		echo "The file never appeared: $DEVPATH"
+		echo ""
+		echo "This might be a distribution udev rule setup by your distribution"
+		echo "to immediately cancel all fallback requests, this must be"
+		echo "removed before running these tests. To confirm look for"
+		echo "a firmware rule like /lib/udev/rules.d/50-firmware.rules"
+		echo "and see if you have something like this:"
+		echo ""
+		echo "SUBSYSTEM==\"firmware\", ACTION==\"add\", ATTR{loading}=\"-1\""
+		echo ""
+		echo "If you do remove this file or comment out this line before"
+		echo "proceeding with these tests."
+		exit 1
+	fi
+
+	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not expected to match" >&2
+		exit 1
+	else
+		echo "$0: timeout works"
+	fi
+}
+
+run_sysfs_main_tests()
+{
+	test_syfs_timeout
+	# Put timeout high enough for us to do work but not so long that failures
+	# slow down this test too much.
+	echo 4 >/sys/class/firmware/timeout
+
+	# Load this script instead of the desired firmware.
+	load_fw "$NAME" "$0"
+	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not expected to match" >&2
+		exit 1
+	else
+		echo "$0: firmware comparison works"
+	fi
+
+	# Do a proper load, which should work correctly.
+	load_fw "$NAME" "$FW"
+	if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not loaded" >&2
+		exit 1
+	else
+		echo "$0: fallback mechanism works"
+	fi
+
+	load_fw_cancel "nope-$NAME" "$FW"
+	if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was expected to be cancelled" >&2
+		exit 1
+	else
+		echo "$0: cancelling fallback mechanism works"
+	fi
+
+	set +e
+	load_fw_fallback_with_child "nope-signal-$NAME" "$FW"
+	if [ "$?" -eq 0 ]; then
+		echo "$0: SIGCHLD on sync ignored as expected" >&2
+	else
+		echo "$0: error - sync firmware request cancelled due to SIGCHLD" >&2
+		exit 1
+	fi
+	set -e
+}
+
+run_sysfs_custom_load_tests()
+{
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+		if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
+			echo "$0: firmware was not loaded" >&2
+			exit 1
+		else
+			echo "$0: custom fallback loading mechanism works"
+		fi
+	fi
+
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+		if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
+			echo "$0: firmware was not loaded" >&2
+			exit 1
+		else
+			echo "$0: custom fallback loading mechanism works"
+		fi
+	fi
+
+	RANDOM_FILE_REAL="$RANDOM_FILE_PATH"
+	FAKE_RANDOM_FILE_PATH=$(setup_random_file_fake)
+	FAKE_RANDOM_FILE="$(basename $FAKE_RANDOM_FILE_PATH)"
+
+	if load_fw_custom_cancel "$FAKE_RANDOM_FILE" "$RANDOM_FILE_REAL" ; then
+		if diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
+			echo "$0: firmware was expected to be cancelled" >&2
+			exit 1
+		else
+			echo "$0: cancelling custom fallback mechanism works"
+		fi
+	fi
+}
+
+if [ "$HAS_FW_LOADER_USER_HELPER_FALLBACK" = "yes" ]; then
+	run_sysfs_main_tests
+fi
+
+run_sysfs_custom_load_tests
+
+exit 0
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 3fc6c10c2479..1a99aea0549e 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -1,47 +1,58 @@
-#!/bin/sh
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # This validates that the kernel will load firmware out of its list of
 # firmware locations on disk. Since the user helper does similar work,
 # we reset the custom load directory to a location the user helper doesn't
 # know so we can be sure we're not accidentally testing the user helper.
 set -e
 
-modprobe test_firmware
+TEST_REQS_FW_SYSFS_FALLBACK="no"
+TEST_REQS_FW_SET_CUSTOM_PATH="yes"
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
 
-DIR=/sys/devices/virtual/misc/test_firmware
+RUN_XZ="xz -C crc32 --lzma2=dict=2MiB"
+RUN_ZSTD="zstd -q"
 
-OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
-OLD_FWPATH=$(cat /sys/module/firmware_class/parameters/path)
-
-FWPATH=$(mktemp -d)
-FW="$FWPATH/test-firmware.bin"
-
-test_finish()
-{
-	echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
-	echo -n "$OLD_PATH" >/sys/module/firmware_class/parameters/path
-	rm -f "$FW"
-	rmdir "$FWPATH"
-}
+check_mods
+check_setup
+verify_reqs
+setup_tmp_file
 
 trap "test_finish" EXIT
 
-# Turn down the timeout so failures don't take so long.
-echo 1 >/sys/class/firmware/timeout
-# Set the kernel search path.
-echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
+if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+	# Turn down the timeout so failures don't take so long.
+	echo 1 >/sys/class/firmware/timeout
+fi
 
-# This is an unlikely real-world firmware content. :)
-echo "ABCD0123" >"$FW"
+if printf '\000' >"$DIR"/trigger_request 2> /dev/null; then
+	echo "$0: empty filename should not succeed" >&2
+	exit 1
+fi
 
-NAME=$(basename "$FW")
+if [ ! -e "$DIR"/trigger_async_request ]; then
+	echo "$0: empty filename: async trigger not present, ignoring test" >&2
+	exit $ksft_skip
+else
+	if printf '\000' >"$DIR"/trigger_async_request 2> /dev/null; then
+		echo "$0: empty filename should not succeed (async)" >&2
+		exit 1
+	fi
+fi
 
 # Request a firmware that doesn't exist, it should fail.
-echo -n "nope-$NAME" >"$DIR"/trigger_request
+if echo -n "nope-$NAME" >"$DIR"/trigger_request 2> /dev/null; then
+	echo "$0: firmware shouldn't have loaded" >&2
+	exit 1
+fi
 if diff -q "$FW" /dev/test_firmware >/dev/null ; then
 	echo "$0: firmware was not expected to match" >&2
 	exit 1
 else
-	echo "$0: timeout works"
+	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+		echo "$0: timeout works"
+	fi
 fi
 
 # This should succeed via kernel load or will fail after 1 second after
@@ -59,4 +70,477 @@ else
 	echo "$0: filesystem loading works"
 fi
 
+# Try the asynchronous version too
+if [ ! -e "$DIR"/trigger_async_request ]; then
+	echo "$0: firmware loading: async trigger not present, ignoring test" >&2
+	exit $ksft_skip
+else
+	if ! echo -n "$NAME" >"$DIR"/trigger_async_request ; then
+		echo "$0: could not trigger async request" >&2
+		exit 1
+	fi
+
+	# Verify the contents are what we expect.
+	if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+		echo "$0: firmware was not loaded (async)" >&2
+		exit 1
+	else
+		echo "$0: async filesystem loading works"
+	fi
+fi
+
+# Try platform (EFI embedded fw) loading too
+if [ ! -e "$DIR"/trigger_request_platform ]; then
+	echo "$0: firmware loading: platform trigger not present, ignoring test" >&2
+else
+	if printf '\000' >"$DIR"/trigger_request_platform 2> /dev/null; then
+		echo "$0: empty filename should not succeed (platform)" >&2
+		exit 1
+	fi
+
+	# Note we echo a non-existing name, since files on the file-system
+	# are preferred over firmware embedded inside the platform's firmware
+	# The test adds a fake entry with the requested name to the platform's
+	# fw list, so the name does not matter as long as it does not exist
+	if ! echo -n "nope-$NAME" >"$DIR"/trigger_request_platform ; then
+		echo "$0: could not trigger request platform" >&2
+		exit 1
+	fi
+
+	# The test verifies itself that the loaded firmware contents matches
+	# the contents for the fake platform fw entry it added.
+	echo "$0: platform loading works"
+fi
+
+### Batched requests tests
+test_config_present()
+{
+	if [ ! -f $DIR/reset ]; then
+		echo "Configuration triggers not present, ignoring test"
+		exit $ksft_skip
+	fi
+}
+
+# Defaults :
+#
+# send_uevent: 1
+# sync_direct: 0
+# name: test-firmware.bin
+# num_requests: 4
+config_reset()
+{
+	echo 1 >  $DIR/reset
+}
+
+release_all_firmware()
+{
+	echo 1 >  $DIR/release_all_firmware
+}
+
+config_set_name()
+{
+	echo -n $1 >  $DIR/config_name
+}
+
+config_set_into_buf()
+{
+	echo 1 >  $DIR/config_into_buf
+}
+
+config_unset_into_buf()
+{
+	echo 0 >  $DIR/config_into_buf
+}
+
+config_set_buf_size()
+{
+	echo $1 >  $DIR/config_buf_size
+}
+
+config_set_file_offset()
+{
+	echo $1 >  $DIR/config_file_offset
+}
+
+config_set_partial()
+{
+	echo 1 >  $DIR/config_partial
+}
+
+config_unset_partial()
+{
+	echo 0 >  $DIR/config_partial
+}
+
+config_set_sync_direct()
+{
+	echo 1 >  $DIR/config_sync_direct
+}
+
+config_unset_sync_direct()
+{
+	echo 0 >  $DIR/config_sync_direct
+}
+
+config_set_uevent()
+{
+	echo 1 >  $DIR/config_send_uevent
+}
+
+config_unset_uevent()
+{
+	echo 0 >  $DIR/config_send_uevent
+}
+
+config_trigger_sync()
+{
+	echo -n 1 > $DIR/trigger_batched_requests 2>/dev/null
+}
+
+config_trigger_async()
+{
+	echo -n 1 > $DIR/trigger_batched_requests_async 2> /dev/null
+}
+
+config_set_read_fw_idx()
+{
+	echo -n $1 > $DIR/config_read_fw_idx 2> /dev/null
+}
+
+read_firmwares()
+{
+	if [ "$(cat $DIR/config_into_buf)" == "1" ]; then
+		fwfile="$FW_INTO_BUF"
+	else
+		fwfile="$FW"
+	fi
+	if [ "$1" = "componly" ]; then
+		fwfile="${fwfile}-orig"
+	fi
+	for i in $(seq 0 3); do
+		config_set_read_fw_idx $i
+		# Verify the contents are what we expect.
+		# -Z required for now -- check for yourself, md5sum
+		# on $FW and DIR/read_firmware will yield the same. Even
+		# cmp agrees, so something is off.
+		if ! diff -q -Z "$fwfile" $DIR/read_firmware 2>/dev/null ; then
+			echo "request #$i: firmware was not loaded" >&2
+			exit 1
+		fi
+	done
+}
+
+read_partial_firmwares()
+{
+	if [ "$(cat $DIR/config_into_buf)" == "1" ]; then
+		fwfile="${FW_INTO_BUF}"
+	else
+		fwfile="${FW}"
+	fi
+
+	if [ "$1" = "componly" ]; then
+		fwfile="${fwfile}-orig"
+	fi
+
+	# Strip fwfile down to match partial offset and length
+	partial_data="$(cat $fwfile)"
+	partial_data="${partial_data:$2:$3}"
+
+	for i in $(seq 0 3); do
+		config_set_read_fw_idx $i
+
+		read_firmware="$(cat $DIR/read_firmware)"
+
+		# Verify the contents are what we expect.
+		if [ $read_firmware != $partial_data ]; then
+			echo "request #$i: partial firmware was not loaded" >&2
+			exit 1
+		fi
+	done
+}
+
+read_firmwares_expect_nofile()
+{
+	for i in $(seq 0 3); do
+		config_set_read_fw_idx $i
+		# Ensures contents differ
+		if diff -q -Z "$FW" $DIR/read_firmware 2>/dev/null ; then
+			echo "request $i: file was not expected to match" >&2
+			exit 1
+		fi
+	done
+}
+
+test_batched_request_firmware_nofile()
+{
+	echo -n "Batched request_firmware() nofile try #$1: "
+	config_reset
+	config_set_name nope-test-firmware.bin
+	config_trigger_sync
+	read_firmwares_expect_nofile
+	release_all_firmware
+	echo "OK"
+}
+
+test_batched_request_firmware_into_buf_nofile()
+{
+	echo -n "Batched request_firmware_into_buf() nofile try #$1: "
+	config_reset
+	config_set_name nope-test-firmware.bin
+	config_set_into_buf
+	config_trigger_sync
+	read_firmwares_expect_nofile
+	release_all_firmware
+	echo "OK"
+}
+
+test_request_partial_firmware_into_buf_nofile()
+{
+	echo -n "Test request_partial_firmware_into_buf() off=$1 size=$2 nofile: "
+	config_reset
+	config_set_name nope-test-firmware.bin
+	config_set_into_buf
+	config_set_partial
+	config_set_buf_size $2
+	config_set_file_offset $1
+	config_trigger_sync
+	read_firmwares_expect_nofile
+	release_all_firmware
+	echo "OK"
+}
+
+test_batched_request_firmware_direct_nofile()
+{
+	echo -n "Batched request_firmware_direct() nofile try #$1: "
+	config_reset
+	config_set_name nope-test-firmware.bin
+	config_set_sync_direct
+	config_trigger_sync
+	release_all_firmware
+	echo "OK"
+}
+
+test_request_firmware_nowait_uevent_nofile()
+{
+	echo -n "Batched request_firmware_nowait(uevent=true) nofile try #$1: "
+	config_reset
+	config_set_name nope-test-firmware.bin
+	config_trigger_async
+	release_all_firmware
+	echo "OK"
+}
+
+test_wait_and_cancel_custom_load()
+{
+	if [ "$HAS_FW_LOADER_USER_HELPER" != "yes" ]; then
+		return
+	fi
+	local timeout=10
+	name=$1
+	while [ ! -e "$DIR"/"$name"/loading ]; do
+		sleep 0.1
+		timeout=$(( $timeout - 1 ))
+		if [ "$timeout" -eq 0 ]; then
+			echo "firmware interface never appeared:" >&2
+			echo "$DIR/$name/loading" >&2
+			exit 1
+		fi
+	done
+	echo -1 >"$DIR"/"$name"/loading
+}
+
+test_request_firmware_nowait_custom_nofile()
+{
+	echo -n "Batched request_firmware_nowait(uevent=false) nofile try #$1: "
+	config_reset
+	config_unset_uevent
+	RANDOM_FILE_PATH=$(setup_random_file_fake)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	config_set_name $RANDOM_FILE
+	config_trigger_async &
+	test_wait_and_cancel_custom_load $RANDOM_FILE
+	wait
+	release_all_firmware
+	echo "OK"
+}
+
+test_batched_request_firmware()
+{
+	echo -n "Batched request_firmware() $2 try #$1: "
+	config_reset
+	config_trigger_sync
+	read_firmwares $2
+	release_all_firmware
+	echo "OK"
+}
+
+test_batched_request_firmware_into_buf()
+{
+	echo -n "Batched request_firmware_into_buf() $2 try #$1: "
+	config_reset
+	config_set_name $TEST_FIRMWARE_INTO_BUF_FILENAME
+	config_set_into_buf
+	config_trigger_sync
+	read_firmwares $2
+	release_all_firmware
+	echo "OK"
+}
+
+test_batched_request_firmware_direct()
+{
+	echo -n "Batched request_firmware_direct() $2 try #$1: "
+	config_reset
+	config_set_sync_direct
+	config_trigger_sync
+	release_all_firmware
+	echo "OK"
+}
+
+test_request_firmware_nowait_uevent()
+{
+	echo -n "Batched request_firmware_nowait(uevent=true) $2 try #$1: "
+	config_reset
+	config_trigger_async
+	release_all_firmware
+	echo "OK"
+}
+
+test_request_firmware_nowait_custom()
+{
+	echo -n "Batched request_firmware_nowait(uevent=false) $2 try #$1: "
+	config_reset
+	config_unset_uevent
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	if [ -n "$2" -a "$2" != "normal" ]; then
+		compress_"$2"_"$COMPRESS_FORMAT" $RANDOM_FILE_PATH
+	fi
+	config_set_name $RANDOM_FILE
+	config_trigger_async
+	release_all_firmware
+	echo "OK"
+}
+
+test_request_partial_firmware_into_buf()
+{
+	echo -n "Test request_partial_firmware_into_buf() off=$1 size=$2: "
+	config_reset
+	config_set_name $TEST_FIRMWARE_INTO_BUF_FILENAME
+	config_set_into_buf
+	config_set_partial
+	config_set_buf_size $2
+	config_set_file_offset $1
+	config_trigger_sync
+	read_partial_firmwares normal $1 $2
+	release_all_firmware
+	echo "OK"
+}
+
+do_tests ()
+{
+	mode="$1"
+	suffix="$2"
+
+	for i in $(seq 1 5); do
+		test_batched_request_firmware$suffix $i $mode
+	done
+
+	for i in $(seq 1 5); do
+		test_batched_request_firmware_into_buf$suffix $i $mode
+	done
+
+	for i in $(seq 1 5); do
+		test_batched_request_firmware_direct$suffix $i $mode
+	done
+
+	for i in $(seq 1 5); do
+		test_request_firmware_nowait_uevent$suffix $i $mode
+	done
+
+	for i in $(seq 1 5); do
+		test_request_firmware_nowait_custom$suffix $i $mode
+	done
+}
+
+# Only continue if batched request triggers are present on the
+# test-firmware driver
+test_config_present
+
+# test with the file present
+echo
+echo "Testing with the file present..."
+do_tests normal
+
+# Partial loads cannot use fallback, so do not repeat tests.
+test_request_partial_firmware_into_buf 0 10
+test_request_partial_firmware_into_buf 0 5
+test_request_partial_firmware_into_buf 1 6
+test_request_partial_firmware_into_buf 2 10
+
+# Test for file not found, errors are expected, the failure would be
+# a hung task, which would require a hard reset.
+echo
+echo "Testing with the file missing..."
+do_tests nofile _nofile
+
+# Partial loads cannot use fallback, so do not repeat tests.
+test_request_partial_firmware_into_buf_nofile 0 10
+test_request_partial_firmware_into_buf_nofile 0 5
+test_request_partial_firmware_into_buf_nofile 1 6
+test_request_partial_firmware_into_buf_nofile 2 10
+
+test_request_firmware_compressed ()
+{
+	export COMPRESS_FORMAT="$1"
+
+	# test with both files present
+	compress_both_"$COMPRESS_FORMAT" $FW
+	compress_both_"$COMPRESS_FORMAT" $FW_INTO_BUF
+
+	config_set_name $NAME
+	echo
+	echo "Testing with both plain and $COMPRESS_FORMAT files present..."
+	do_tests both
+
+	# test with only compressed file present
+	mv "$FW" "${FW}-orig"
+	mv "$FW_INTO_BUF" "${FW_INTO_BUF}-orig"
+
+	config_set_name $NAME
+	echo
+	echo "Testing with only $COMPRESS_FORMAT file present..."
+	do_tests componly
+
+	mv "${FW}-orig" "$FW"
+	mv "${FW_INTO_BUF}-orig" "$FW_INTO_BUF"
+}
+
+compress_both_XZ ()
+{
+	$RUN_XZ -k "$@"
+}
+
+compress_componly_XZ ()
+{
+	$RUN_XZ "$@"
+}
+
+compress_both_ZSTD ()
+{
+	$RUN_ZSTD -k "$@"
+}
+
+compress_componly_ZSTD ()
+{
+	$RUN_ZSTD --rm "$@"
+}
+
+if test "$HAS_FW_LOADER_COMPRESS_XZ" = "yes"; then
+	test_request_firmware_compressed XZ
+fi
+
+if test "$HAS_FW_LOADER_COMPRESS_ZSTD" = "yes"; then
+	test_request_firmware_compressed ZSTD
+fi
+
 exit 0
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
new file mode 100755
index 000000000000..7bffd67800bf
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -0,0 +1,236 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Library of helpers for test scripts.
+set -e
+
+DIR=/sys/devices/virtual/misc/test_firmware
+
+PROC_CONFIG="/proc/config.gz"
+TEST_DIR=$(dirname $0)
+
+# We need to load a different file to test request_firmware_into_buf
+# I believe the issue is firmware loaded cached vs. non-cached
+# with same filename is bungled.
+# To reproduce rename this to test-firmware.bin
+TEST_FIRMWARE_INTO_BUF_FILENAME=test-firmware-into-buf.bin
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+print_reqs_exit()
+{
+	echo "You must have the following enabled in your kernel:" >&2
+	cat $TEST_DIR/config >&2
+	exit $ksft_skip
+}
+
+test_modprobe()
+{
+	if [ ! -d $DIR ]; then
+		print_reqs_exit
+	fi
+}
+
+check_mods()
+{
+	local uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo "skip all tests: must be run as root" >&2
+		exit $ksft_skip
+	fi
+
+	trap "test_modprobe" EXIT
+	if [ ! -d $DIR ]; then
+		modprobe test_firmware
+	fi
+	if [ ! -f $PROC_CONFIG ]; then
+		if modprobe configs 2>/dev/null; then
+			echo "Loaded configs module"
+			if [ ! -f $PROC_CONFIG ]; then
+				echo "You must have the following enabled in your kernel:" >&2
+				cat $TEST_DIR/config >&2
+				echo "Resorting to old heuristics" >&2
+			fi
+		else
+			echo "Failed to load configs module, using old heuristics" >&2
+		fi
+	fi
+}
+
+check_setup()
+{
+	HAS_FW_LOADER_USER_HELPER="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)"
+	HAS_FW_LOADER_USER_HELPER_FALLBACK="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)"
+	HAS_FW_LOADER_COMPRESS_XZ="$(kconfig_has CONFIG_FW_LOADER_COMPRESS_XZ=y)"
+	HAS_FW_LOADER_COMPRESS_ZSTD="$(kconfig_has CONFIG_FW_LOADER_COMPRESS_ZSTD=y)"
+	HAS_FW_UPLOAD="$(kconfig_has CONFIG_FW_UPLOAD=y)"
+	PROC_FW_IGNORE_SYSFS_FALLBACK="0"
+	PROC_FW_FORCE_SYSFS_FALLBACK="0"
+
+	if [ -z $PROC_SYS_DIR ]; then
+		PROC_SYS_DIR="/proc/sys/kernel"
+	fi
+
+	FW_PROC="${PROC_SYS_DIR}/firmware_config"
+	FW_FORCE_SYSFS_FALLBACK="$FW_PROC/force_sysfs_fallback"
+	FW_IGNORE_SYSFS_FALLBACK="$FW_PROC/ignore_sysfs_fallback"
+
+	if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+		PROC_FW_FORCE_SYSFS_FALLBACK="$(cat $FW_FORCE_SYSFS_FALLBACK)"
+	fi
+
+	if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+		PROC_FW_IGNORE_SYSFS_FALLBACK="$(cat $FW_IGNORE_SYSFS_FALLBACK)"
+	fi
+
+	if [ "$PROC_FW_FORCE_SYSFS_FALLBACK" = "1" ]; then
+		HAS_FW_LOADER_USER_HELPER="yes"
+		HAS_FW_LOADER_USER_HELPER_FALLBACK="yes"
+	fi
+
+	if [ "$PROC_FW_IGNORE_SYSFS_FALLBACK" = "1" ]; then
+		HAS_FW_LOADER_USER_HELPER_FALLBACK="no"
+		HAS_FW_LOADER_USER_HELPER="no"
+	fi
+
+	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+	       OLD_TIMEOUT="$(cat /sys/class/firmware/timeout)"
+	fi
+
+	OLD_FWPATH="$(cat /sys/module/firmware_class/parameters/path)"
+
+	if [ "$HAS_FW_LOADER_COMPRESS_XZ" = "yes" ]; then
+		if ! which xz 2> /dev/null > /dev/null; then
+			HAS_FW_LOADER_COMPRESS_XZ=""
+		fi
+	fi
+	if [ "$HAS_FW_LOADER_COMPRESS_ZSTD" = "yes" ]; then
+		if ! which zstd 2> /dev/null > /dev/null; then
+			HAS_FW_LOADER_COMPRESS_ZSTD=""
+		fi
+	fi
+}
+
+verify_reqs()
+{
+	if [ "$TEST_REQS_FW_SYSFS_FALLBACK" = "yes" ]; then
+		if [ ! "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+			echo "usermode helper disabled so ignoring test"
+			exit 0
+		fi
+	fi
+	if [ "$TEST_REQS_FW_UPLOAD" = "yes" ]; then
+		if [ ! "$HAS_FW_UPLOAD" = "yes" ]; then
+			echo "firmware upload disabled so ignoring test"
+			exit 0
+		fi
+	fi
+}
+
+setup_tmp_file()
+{
+	FWPATH=$(mktemp -d)
+	FW="$FWPATH/test-firmware.bin"
+	echo "ABCD0123" >"$FW"
+	FW_INTO_BUF="$FWPATH/$TEST_FIRMWARE_INTO_BUF_FILENAME"
+	echo "EFGH4567" >"$FW_INTO_BUF"
+	NAME=$(basename "$FW")
+	if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then
+		echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
+	fi
+}
+
+__setup_random_file()
+{
+	RANDOM_FILE_PATH="$(mktemp -p $FWPATH)"
+	# mktemp says dry-run -n is unsafe, so...
+	if [[ "$1" = "fake" ]]; then
+		rm -rf $RANDOM_FILE_PATH
+		sync
+	else
+		echo "ABCD0123" >"$RANDOM_FILE_PATH"
+	fi
+	echo $RANDOM_FILE_PATH
+}
+
+setup_random_file()
+{
+	echo $(__setup_random_file)
+}
+
+setup_random_file_fake()
+{
+	echo $(__setup_random_file fake)
+}
+
+proc_set_force_sysfs_fallback()
+{
+	if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+		echo -n $1 > $FW_FORCE_SYSFS_FALLBACK
+		check_setup
+	fi
+}
+
+proc_set_ignore_sysfs_fallback()
+{
+	if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+		echo -n $1 > $FW_IGNORE_SYSFS_FALLBACK
+		check_setup
+	fi
+}
+
+proc_restore_defaults()
+{
+	proc_set_force_sysfs_fallback 0
+	proc_set_ignore_sysfs_fallback 0
+}
+
+test_finish()
+{
+	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+		echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
+	fi
+	if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then
+		if [ "$OLD_FWPATH" = "" ]; then
+			# A zero-length write won't work; write a null byte
+			printf '\000' >/sys/module/firmware_class/parameters/path
+		else
+			echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
+		fi
+	fi
+	if [ -f $FW ]; then
+		rm -f "$FW"
+	fi
+	if [ -f $FW_INTO_BUF ]; then
+		rm -f "$FW_INTO_BUF"
+	fi
+	if [ -d $FWPATH ]; then
+		rm -rf "$FWPATH"
+	fi
+	proc_restore_defaults
+}
+
+kconfig_has()
+{
+	if [ -f $PROC_CONFIG ]; then
+		if zgrep -q $1 $PROC_CONFIG 2>/dev/null; then
+			echo "yes"
+		else
+			echo "no"
+		fi
+	else
+		# We currently don't have easy heuristics to infer this
+		# so best we can do is just try to use the kernel assuming
+		# you had enabled it. This matches the old behaviour.
+		if [ "$1" = "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y" ]; then
+			echo "yes"
+		elif [ "$1" = "CONFIG_FW_LOADER_USER_HELPER=y" ]; then
+			if [ -d /sys/class/firmware/ ]; then
+				echo yes
+			else
+				echo no
+			fi
+		fi
+	fi
+}
diff --git a/tools/testing/selftests/firmware/fw_namespace.c b/tools/testing/selftests/firmware/fw_namespace.c
new file mode 100644
index 000000000000..04757dc7e546
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_namespace.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test triggering of loading of firmware from different mount
+ * namespaces. Expect firmware to be always loaded from the mount
+ * namespace of PID 1. */
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static char *fw_path = NULL;
+
+static void die(char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	if (fw_path)
+		unlink(fw_path);
+	umount("/lib/firmware");
+	exit(EXIT_FAILURE);
+}
+
+static void trigger_fw(const char *fw_name, const char *sys_path)
+{
+	int fd;
+
+	fd = open(sys_path, O_WRONLY);
+	if (fd < 0)
+		die("open failed: %s\n",
+		    strerror(errno));
+	if (write(fd, fw_name, strlen(fw_name)) != strlen(fw_name))
+		exit(EXIT_FAILURE);
+	close(fd);
+}
+
+static void setup_fw(const char *fw_path)
+{
+	int fd;
+	const char fw[] = "ABCD0123";
+
+	fd = open(fw_path, O_WRONLY | O_CREAT, 0600);
+	if (fd < 0)
+		die("open failed: %s\n",
+		    strerror(errno));
+	if (write(fd, fw, sizeof(fw) -1) != sizeof(fw) -1)
+		die("write failed: %s\n",
+		    strerror(errno));
+	close(fd);
+}
+
+static bool test_fw_in_ns(const char *fw_name, const char *sys_path, bool block_fw_in_parent_ns)
+{
+	pid_t child;
+
+	if (block_fw_in_parent_ns)
+		if (mount("test", "/lib/firmware", "tmpfs", MS_RDONLY, NULL) == -1)
+			die("blocking firmware in parent ns failed\n");
+
+	child = fork();
+	if (child == -1) {
+		die("fork failed: %s\n",
+			strerror(errno));
+	}
+	if (child != 0) { /* parent */
+		pid_t pid;
+		int status;
+
+		pid = waitpid(child, &status, 0);
+		if (pid == -1) {
+			die("waitpid failed: %s\n",
+				strerror(errno));
+		}
+		if (pid != child) {
+			die("waited for %d got %d\n",
+				child, pid);
+		}
+		if (!WIFEXITED(status)) {
+			die("child did not terminate cleanly\n");
+		}
+		if (block_fw_in_parent_ns)
+			umount("/lib/firmware");
+		return WEXITSTATUS(status) == EXIT_SUCCESS;
+	}
+
+	if (unshare(CLONE_NEWNS) != 0) {
+		die("unshare(CLONE_NEWNS) failed: %s\n",
+			strerror(errno));
+	}
+	if (mount(NULL, "/", NULL, MS_SLAVE|MS_REC, NULL) == -1)
+		die("remount root in child ns failed\n");
+
+	if (!block_fw_in_parent_ns) {
+		if (mount("test", "/lib/firmware", "tmpfs", MS_RDONLY, NULL) == -1)
+			die("blocking firmware in child ns failed\n");
+	} else
+		umount("/lib/firmware");
+
+	trigger_fw(fw_name, sys_path);
+
+	exit(EXIT_SUCCESS);
+}
+
+int main(int argc, char **argv)
+{
+	const char *fw_name = "test-firmware.bin";
+	char *sys_path;
+	if (argc != 2)
+		die("usage: %s sys_path\n", argv[0]);
+
+	/* Mount tmpfs to /lib/firmware so we don't have to assume
+	   that it is writable for us.*/
+	if (mount("test", "/lib/firmware", "tmpfs", 0, NULL) == -1)
+		die("mounting tmpfs to /lib/firmware failed\n");
+
+	sys_path = argv[1];
+	if (asprintf(&fw_path, "/lib/firmware/%s", fw_name) < 0)
+		die("error: failed to build full fw_path\n");
+
+	setup_fw(fw_path);
+
+	setvbuf(stdout, NULL, _IONBF, 0);
+	/* Positive case: firmware in PID1 mount namespace */
+	printf("Testing with firmware in parent namespace (assumed to be same file system as PID1)\n");
+	if (!test_fw_in_ns(fw_name, sys_path, false))
+		die("error: failed to access firmware\n");
+
+	/* Negative case: firmware in child mount namespace, expected to fail */
+	printf("Testing with firmware in child namespace\n");
+	if (test_fw_in_ns(fw_name, sys_path, true))
+		die("error: firmware access did not fail\n");
+
+	unlink(fw_path);
+	free(fw_path);
+	umount("/lib/firmware");
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/testing/selftests/firmware/fw_run_tests.sh b/tools/testing/selftests/firmware/fw_run_tests.sh
new file mode 100755
index 000000000000..f6d95a2d5124
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_run_tests.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This runs all known tests across all known possible configurations we could
+# emulate in one run.
+
+set -e
+
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
+
+export HAS_FW_LOADER_USER_HELPER=""
+export HAS_FW_LOADER_USER_HELPER_FALLBACK=""
+export HAS_FW_LOADER_COMPRESS=""
+
+run_tests()
+{
+	proc_set_force_sysfs_fallback $1
+	proc_set_ignore_sysfs_fallback $2
+	$TEST_DIR/fw_filesystem.sh
+
+	proc_set_force_sysfs_fallback $1
+	proc_set_ignore_sysfs_fallback $2
+	$TEST_DIR/fw_fallback.sh
+
+	proc_set_force_sysfs_fallback $1
+	proc_set_ignore_sysfs_fallback $2
+	$TEST_DIR/fw_upload.sh
+}
+
+run_test_config_0001()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 1 -- rare"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=n"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+	run_tests 0 1
+}
+
+run_test_config_0002()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 2 -- distro"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+	proc_set_ignore_sysfs_fallback 0
+	run_tests 0 0
+}
+
+run_test_config_0003()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 3 -- android"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y"
+	run_tests 1 0
+}
+
+check_mods
+check_setup
+
+echo "Running namespace test: "
+$TEST_DIR/fw_namespace $DIR/trigger_request
+echo "OK"
+
+if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+	run_test_config_0001
+	run_test_config_0002
+	run_test_config_0003
+else
+	echo "Running basic kernel configuration, working with your config"
+	run_tests
+fi
diff --git a/tools/testing/selftests/firmware/fw_upload.sh b/tools/testing/selftests/firmware/fw_upload.sh
new file mode 100755
index 000000000000..c7a6f06c9adb
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_upload.sh
@@ -0,0 +1,214 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# This validates the user-initiated fw upload mechanism of the firmware
+# loader. It verifies that one or more firmware devices can be created
+# for a device driver. It also verifies the data transfer, the
+# cancellation support, and the error flows.
+set -e
+
+TEST_REQS_FW_UPLOAD="yes"
+TEST_DIR=$(dirname $0)
+
+progress_states="preparing transferring  programming"
+errors="hw-error
+	timeout
+	device-busy
+	invalid-file-size
+	read-write-error
+	flash-wearout"
+error_abort="user-abort"
+fwname1=fw1
+fwname2=fw2
+fwname3=fw3
+
+source $TEST_DIR/fw_lib.sh
+
+check_mods
+check_setup
+verify_reqs
+
+trap "upload_finish" EXIT
+
+upload_finish() {
+	local fwdevs="$fwname1 $fwname2 $fwname3"
+
+	for name in $fwdevs; do
+		if [ -e "$DIR/$name" ]; then
+			echo -n "$name" > "$DIR"/upload_unregister
+		fi
+	done
+}
+
+upload_fw() {
+	local name="$1"
+	local file="$2"
+
+	echo 1 > "$DIR"/"$name"/loading
+	cat "$file" > "$DIR"/"$name"/data
+	echo 0 > "$DIR"/"$name"/loading
+}
+
+verify_fw() {
+	local name="$1"
+	local file="$2"
+
+	echo -n "$name" > "$DIR"/config_upload_name
+	if ! cmp "$file" "$DIR"/upload_read > /dev/null 2>&1; then
+		echo "$0: firmware compare for $name did not match" >&2
+		exit 1
+	fi
+
+	echo "$0: firmware upload for $name works" >&2
+	return 0
+}
+
+inject_error() {
+	local name="$1"
+	local status="$2"
+	local error="$3"
+
+	echo 1 > "$DIR"/"$name"/loading
+	echo -n "inject":"$status":"$error" > "$DIR"/"$name"/data
+	echo 0 > "$DIR"/"$name"/loading
+}
+
+await_status() {
+	local name="$1"
+	local expected="$2"
+	local status
+	local i
+
+	let i=0
+	while [ $i -lt 50 ]; do
+		status=$(cat "$DIR"/"$name"/status)
+		if [ "$status" = "$expected" ]; then
+			return 0;
+		fi
+		sleep 1e-03
+		let i=$i+1
+	done
+
+	echo "$0: Invalid status: Expected $expected, Actual $status" >&2
+	return 1;
+}
+
+await_idle() {
+	local name="$1"
+
+	await_status "$name" "idle"
+	return $?
+}
+
+expect_error() {
+	local name="$1"
+	local expected="$2"
+	local error=$(cat "$DIR"/"$name"/error)
+
+	if [ "$error" != "$expected" ]; then
+		echo "Invalid error: Expected $expected, Actual $error" >&2
+		return 1
+	fi
+
+	return 0
+}
+
+random_firmware() {
+	local bs="$1"
+	local count="$2"
+	local file=$(mktemp -p /tmp uploadfwXXX.bin)
+
+	dd if=/dev/urandom of="$file" bs="$bs" count="$count" > /dev/null 2>&1
+	echo "$file"
+}
+
+test_upload_cancel() {
+	local name="$1"
+	local status
+
+	for status in $progress_states; do
+		inject_error $name $status $error_abort
+		if ! await_status $name $status; then
+			exit 1
+		fi
+
+		echo 1 > "$DIR"/"$name"/cancel
+
+		if ! await_idle $name; then
+			exit 1
+		fi
+
+		if ! expect_error $name "$status":"$error_abort"; then
+			exit 1
+		fi
+	done
+
+	echo "$0: firmware upload cancellation works"
+	return 0
+}
+
+test_error_handling() {
+	local name=$1
+	local status
+	local error
+
+	for status in $progress_states; do
+		for error in $errors; do
+			inject_error $name $status $error
+
+			if ! await_idle $name; then
+				exit 1
+			fi
+
+			if ! expect_error $name "$status":"$error"; then
+				exit 1
+			fi
+
+		done
+	done
+	echo "$0: firmware upload error handling works"
+}
+
+test_fw_too_big() {
+	local name=$1
+	local fw_too_big=`random_firmware 512 5`
+	local expected="preparing:invalid-file-size"
+
+	upload_fw $name $fw_too_big
+	rm -f $fw_too_big
+
+	if ! await_idle $name; then
+		exit 1
+	fi
+
+	if ! expect_error $name $expected; then
+		exit 1
+	fi
+
+	echo "$0: oversized firmware error handling works"
+}
+
+echo -n "$fwname1" > "$DIR"/upload_register
+echo -n "$fwname2" > "$DIR"/upload_register
+echo -n "$fwname3" > "$DIR"/upload_register
+
+test_upload_cancel $fwname1
+test_error_handling $fwname1
+test_fw_too_big $fwname1
+
+fw_file1=`random_firmware 512 4`
+fw_file2=`random_firmware 512 3`
+fw_file3=`random_firmware 512 2`
+
+upload_fw $fwname1 $fw_file1
+upload_fw $fwname2 $fw_file2
+upload_fw $fwname3 $fw_file3
+
+verify_fw ${fwname1} ${fw_file1}
+verify_fw ${fwname2} ${fw_file2}
+verify_fw ${fwname3} ${fw_file3}
+
+echo -n "$fwname1" > "$DIR"/upload_unregister
+echo -n "$fwname2" > "$DIR"/upload_unregister
+echo -n "$fwname3" > "$DIR"/upload_unregister
+
+exit 0
diff --git a/tools/testing/selftests/firmware/fw_userhelper.sh b/tools/testing/selftests/firmware/fw_userhelper.sh
deleted file mode 100755
index 6efbade12139..000000000000
--- a/tools/testing/selftests/firmware/fw_userhelper.sh
+++ /dev/null
@@ -1,89 +0,0 @@
-#!/bin/sh
-# This validates that the kernel will fall back to using the user helper
-# to load firmware it can't find on disk itself. We must request a firmware
-# that the kernel won't find, and any installed helper (e.g. udev) also
-# won't find so that we can do the load ourself manually.
-set -e
-
-modprobe test_firmware
-
-DIR=/sys/devices/virtual/misc/test_firmware
-
-OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
-
-FWPATH=$(mktemp -d)
-FW="$FWPATH/test-firmware.bin"
-
-test_finish()
-{
-	echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
-	rm -f "$FW"
-	rmdir "$FWPATH"
-}
-
-load_fw()
-{
-	local name="$1"
-	local file="$2"
-
-	# This will block until our load (below) has finished.
-	echo -n "$name" >"$DIR"/trigger_request &
-
-	# Give kernel a chance to react.
-	local timeout=10
-	while [ ! -e "$DIR"/"$name"/loading ]; do
-		sleep 0.1
-		timeout=$(( $timeout - 1 ))
-		if [ "$timeout" -eq 0 ]; then
-			echo "$0: firmware interface never appeared" >&2
-			exit 1
-		fi
-	done
-
-	echo 1 >"$DIR"/"$name"/loading
-	cat "$file" >"$DIR"/"$name"/data
-	echo 0 >"$DIR"/"$name"/loading
-
-	# Wait for request to finish.
-	wait
-}
-
-trap "test_finish" EXIT
-
-# This is an unlikely real-world firmware content. :)
-echo "ABCD0123" >"$FW"
-NAME=$(basename "$FW")
-
-# Test failure when doing nothing (timeout works).
-echo 1 >/sys/class/firmware/timeout
-echo -n "$NAME" >"$DIR"/trigger_request
-if diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was not expected to match" >&2
-	exit 1
-else
-	echo "$0: timeout works"
-fi
-
-# Put timeout high enough for us to do work but not so long that failures
-# slow down this test too much.
-echo 4 >/sys/class/firmware/timeout
-
-# Load this script instead of the desired firmware.
-load_fw "$NAME" "$0"
-if diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was not expected to match" >&2
-	exit 1
-else
-	echo "$0: firmware comparison works"
-fi
-
-# Do a proper load, which should work correctly.
-load_fw "$NAME" "$FW"
-if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
-	echo "$0: firmware was not loaded" >&2
-	exit 1
-else
-	echo "$0: user helper firmware loading works"
-fi
-
-exit 0
diff --git a/tools/testing/selftests/firmware/settings b/tools/testing/selftests/firmware/settings
new file mode 100644
index 000000000000..085e664ee093
--- /dev/null
+++ b/tools/testing/selftests/firmware/settings
@@ -0,0 +1,8 @@
+# The async firmware timeout is set to 1 second (but ends up being effectively
+# 2 seconds). There are 3 test configs, each done with and without firmware
+# present, each with 2 "nowait" functions tested 5 times. Expected time for a
+# normal execution should be 2 * 3 * 2 * 2 * 5 = 120 seconds for those alone.
+# Additionally, fw_fallback may take 5 seconds for internal timeouts in each
+# of the 3 configs, so at least another 15 seconds are needed. Add another
+# 10 seconds for each testing config: 120 + 15 + 30
+timeout=165
diff --git a/tools/testing/selftests/fpu/.gitignore b/tools/testing/selftests/fpu/.gitignore
new file mode 100644
index 000000000000..d6d12ac1d9c3
--- /dev/null
+++ b/tools/testing/selftests/fpu/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0+
+test_fpu
diff --git a/tools/testing/selftests/fpu/Makefile b/tools/testing/selftests/fpu/Makefile
new file mode 100644
index 000000000000..ea62c176ede7
--- /dev/null
+++ b/tools/testing/selftests/fpu/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+LDLIBS := -lm
+
+TEST_GEN_PROGS := test_fpu
+
+TEST_PROGS := run_test_fpu.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/fpu/run_test_fpu.sh b/tools/testing/selftests/fpu/run_test_fpu.sh
new file mode 100755
index 000000000000..d77be93ec139
--- /dev/null
+++ b/tools/testing/selftests/fpu/run_test_fpu.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Load kernel module for FPU tests
+
+uid=$(id -u)
+if [ $uid -ne 0 ]; then
+	echo "$0: Must be run as root"
+	exit 1
+fi
+
+if ! which modprobe > /dev/null 2>&1; then
+	echo "$0: You need modprobe installed"
+        exit 4
+fi
+
+if ! modinfo test_fpu > /dev/null 2>&1; then
+	echo "$0: You must have the following enabled in your kernel:"
+	echo "CONFIG_TEST_FPU=m"
+	exit 4
+fi
+
+NR_CPUS=$(getconf _NPROCESSORS_ONLN)
+if [ ! $NR_CPUS ]; then
+	NR_CPUS=1
+fi
+
+modprobe test_fpu
+
+if [ ! -e /sys/kernel/debug/selftest_helpers/test_fpu ]; then
+	mount -t debugfs none /sys/kernel/debug
+
+	if [ ! -e /sys/kernel/debug/selftest_helpers/test_fpu ]; then
+		echo "$0: Error mounting debugfs"
+		exit 4
+	fi
+fi
+
+echo "Running 1000 iterations on all CPUs... "
+for i in $(seq 1 1000); do
+	for c in $(seq 1 $NR_CPUS); do
+		./test_fpu &
+	done
+done
+
+rmmod test_fpu
diff --git a/tools/testing/selftests/fpu/test_fpu.c b/tools/testing/selftests/fpu/test_fpu.c
new file mode 100644
index 000000000000..200238522a9d
--- /dev/null
+++ b/tools/testing/selftests/fpu/test_fpu.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* This testcase operates with the test_fpu kernel driver.
+ * It modifies the FPU control register in user mode and calls the kernel
+ * module to perform floating point operations in the kernel. The control
+ * register value should be independent between kernel and user mode.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <fenv.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+const char *test_fpu_path = "/sys/kernel/debug/selftest_helpers/test_fpu";
+
+int main(void)
+{
+	char dummy[1];
+	int fd = open(test_fpu_path, O_RDONLY);
+
+	if (fd < 0) {
+		printf("[SKIP]\tcan't access %s: %s\n",
+		       test_fpu_path, strerror(errno));
+		return 0;
+	}
+
+	if (read(fd, dummy, 1) < 0) {
+		printf("[FAIL]\taccess with default rounding mode failed\n");
+		return 1;
+	}
+
+	fesetround(FE_DOWNWARD);
+	if (read(fd, dummy, 1) < 0) {
+		printf("[FAIL]\taccess with downward rounding mode failed\n");
+		return 2;
+	}
+	if (fegetround() != FE_DOWNWARD) {
+		printf("[FAIL]\tusermode rounding mode clobbered\n");
+		return 3;
+	}
+
+	/* Note: the tests up to this point are quite safe and will only return
+	 * an error. But the exception mask setting can cause misbehaving kernel
+	 * to crash.
+	 */
+	feclearexcept(FE_ALL_EXCEPT);
+	feenableexcept(FE_ALL_EXCEPT);
+	if (read(fd, dummy, 1) < 0) {
+		printf("[FAIL]\taccess with fpu exceptions unmasked failed\n");
+		return 4;
+	}
+	if (fegetexcept() != FE_ALL_EXCEPT) {
+		printf("[FAIL]\tusermode fpu exception mask clobbered\n");
+		return 5;
+	}
+
+	printf("[OK]\ttest_fpu\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/ftrace/.gitignore b/tools/testing/selftests/ftrace/.gitignore
new file mode 100644
index 000000000000..4d7fcb828850
--- /dev/null
+++ b/tools/testing/selftests/ftrace/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+logs
+poll
diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
index 0acbeca47225..7c12263f8260 100644
--- a/tools/testing/selftests/ftrace/Makefile
+++ b/tools/testing/selftests/ftrace/Makefile
@@ -1,9 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
-TEST_PROGS := ftracetest
-TEST_DIRS := test.d/
+TEST_PROGS_EXTENDED := ftracetest
+TEST_PROGS := ftracetest-ktap
+TEST_FILES := test.d settings
+EXTRA_CLEAN := $(OUTPUT)/logs/*
 
-include ../lib.mk
+TEST_GEN_FILES := poll
 
-clean:
-	rm -rf logs/*
+include ../lib.mk
diff --git a/tools/testing/selftests/ftrace/config b/tools/testing/selftests/ftrace/config
new file mode 100644
index 000000000000..544de0db5f58
--- /dev/null
+++ b/tools/testing/selftests/ftrace/config
@@ -0,0 +1,29 @@
+CONFIG_BPF_SYSCALL=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_EPROBE_EVENTS=y
+CONFIG_FPROBE=y
+CONFIG_FPROBE_EVENTS=y
+CONFIG_FTRACE=y
+CONFIG_FTRACE_SYSCALLS=y
+CONFIG_FUNCTION_GRAPH_RETVAL=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_HIST_TRIGGERS=y
+CONFIG_IRQSOFF_TRACER=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KPROBES=y
+CONFIG_KPROBE_EVENTS=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_PREEMPTIRQ_DELAY_TEST=m
+CONFIG_PREEMPT_TRACER=y
+CONFIG_PROBE_EVENTS_BTF_ARGS=y
+CONFIG_SAMPLES=y
+CONFIG_SAMPLE_FTRACE_DIRECT=m
+CONFIG_SAMPLE_TRACE_EVENTS=m
+CONFIG_SAMPLE_TRACE_PRINTK=m
+CONFIG_SCHED_TRACER=y
+CONFIG_STACK_TRACER=y
+CONFIG_TRACER_SNAPSHOT=y
+CONFIG_UPROBES=y
+CONFIG_UPROBE_EVENTS=y
diff --git a/tools/testing/selftests/ftrace/ftracetest b/tools/testing/selftests/ftrace/ftracetest
index da48812ab95e..3230bd54dba8 100755
--- a/tools/testing/selftests/ftrace/ftracetest
+++ b/tools/testing/selftests/ftrace/ftracetest
@@ -1,26 +1,63 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
 
 # ftracetest - Ftrace test shell scripts
 #
 # Copyright (C) Hitachi Ltd., 2014
 #  Written by Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
 #
-# Released under the terms of the GPL v2.
 
 usage() { # errno [message]
-[ "$2" ] && echo $2
+[ ! -z "$2" ] && echo $2
 echo "Usage: ftracetest [options] [testcase(s)] [testcase-directory(s)]"
 echo " Options:"
 echo "		-h|--help  Show help message"
 echo "		-k|--keep  Keep passed test logs"
-echo "		-v|--verbose Show all stdout messages in testcases"
+echo "		-K|--ktap  Output in KTAP format"
+echo "		-v|--verbose Increase verbosity of test messages"
+echo "		-vv        Alias of -v -v (Show all results in stdout)"
+echo "		-vvv       Alias of -v -v -v (Show all commands immediately)"
+echo "		--fail-unsupported Treat UNSUPPORTED as a failure"
+echo "		--fail-unresolved Treat UNRESOLVED as a failure"
 echo "		-d|--debug Debug mode (trace all shell commands)"
+echo "		-l|--logdir <dir> Save logs on the <dir>"
+echo "		            If <dir> is -, all logs output in console only"
+echo "		--rv       Run RV selftests instead of ftrace ones"
 exit $1
 }
 
+# default error
+err_ret=1
+
+# kselftest skip code is 4
+err_skip=4
+
+# umount required
+UMOUNT_DIR=""
+
+# cgroup RT scheduling prevents chrt commands from succeeding, which
+# induces failures in test wakeup tests.  Disable for the duration of
+# the tests.
+
+readonly sched_rt_runtime=/proc/sys/kernel/sched_rt_runtime_us
+
+sched_rt_runtime_orig=$(cat $sched_rt_runtime)
+
+setup() {
+  echo -1 > $sched_rt_runtime
+}
+
+cleanup() {
+  echo $sched_rt_runtime_orig > $sched_rt_runtime
+  if [ -n "${UMOUNT_DIR}" ]; then
+    umount ${UMOUNT_DIR} ||:
+  fi
+}
+
 errexit() { # message
   echo "Error: $1" 1>&2
-  exit 1
+  cleanup
+  exit $err_ret
 }
 
 # Ensuring user privilege
@@ -28,6 +65,8 @@ if [ `id -u` -ne 0 ]; then
   errexit "this must be run by root user"
 fi
 
+setup
+
 # Utilities
 absdir() { # file_path
   (cd `dirname $1`; pwd)
@@ -45,7 +84,7 @@ parse_opts() { # opts
   local OPT_TEST_CASES=
   local OPT_TEST_DIR=
 
-  while [ "$1" ]; do
+  while [ ! -z "$1" ]; do
     case "$1" in
     --help|-h)
       usage 0
@@ -54,14 +93,51 @@ parse_opts() { # opts
       KEEP_LOG=1
       shift 1
     ;;
-    --verbose|-v)
-      VERBOSE=1
+    --ktap|-K)
+      KTAP=1
+      shift 1
+    ;;
+    --verbose|-v|-vv|-vvv)
+      if [ $VERBOSE -eq -1 ]; then
+	usage "--console can not use with --verbose"
+      fi
+      VERBOSE=$((VERBOSE + 1))
+      [ $1 = '-vv' ] && VERBOSE=$((VERBOSE + 1))
+      [ $1 = '-vvv' ] && VERBOSE=$((VERBOSE + 2))
+      shift 1
+    ;;
+    --console)
+      if [ $VERBOSE -ne 0 ]; then
+	usage "--console can not use with --verbose"
+      fi
+      VERBOSE=-1
       shift 1
     ;;
     --debug|-d)
       DEBUG=1
       shift 1
     ;;
+    --stop-fail)
+      STOP_FAILURE=1
+      shift 1
+    ;;
+    --fail-unsupported)
+      UNSUPPORTED_RESULT=1
+      shift 1
+    ;;
+    --fail-unresolved)
+      UNRESOLVED_RESULT=1
+      shift 1
+    ;;
+    --logdir|-l)
+      LOG_DIR=$2
+      LINK_PTR=
+      shift 2
+    ;;
+    --rv)
+      RV_TEST=1
+      shift 1
+    ;;
     *.tc)
       if [ -f "$1" ]; then
         OPT_TEST_CASES="$OPT_TEST_CASES `abspath $1`"
@@ -81,40 +157,126 @@ parse_opts() { # opts
     ;;
     esac
   done
-  if [ "$OPT_TEST_CASES" ]; then
+  if [ -n "$OPT_TEST_CASES" ]; then
     TEST_CASES=$OPT_TEST_CASES
   fi
+  if [ -n "$OPT_TEST_DIR" -a -f "$OPT_TEST_DIR"/test.d/functions ]; then
+    TOP_DIR=$OPT_TEST_DIR
+    TEST_DIR=$TOP_DIR/test.d
+  fi
 }
 
 # Parameters
-DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
-TRACING_DIR=$DEBUGFS_DIR/tracing
+TRACING_DIR=`grep tracefs /proc/mounts | cut -f2 -d' ' | head -1`
+if [ -z "$TRACING_DIR" ]; then
+    DEBUGFS_DIR=`grep debugfs /proc/mounts | cut -f2 -d' ' | head -1`
+    if [ -z "$DEBUGFS_DIR" ]; then
+	# If tracefs exists, then so does /sys/kernel/tracing
+	if [ -d "/sys/kernel/tracing" ]; then
+	    mount -t tracefs nodev /sys/kernel/tracing ||
+	      errexit "Failed to mount /sys/kernel/tracing"
+	    TRACING_DIR="/sys/kernel/tracing"
+	    UMOUNT_DIR=${TRACING_DIR}
+	# If debugfs exists, then so does /sys/kernel/debug
+	elif [ -d "/sys/kernel/debug" ]; then
+	    mount -t debugfs nodev /sys/kernel/debug ||
+	      errexit "Failed to mount /sys/kernel/debug"
+	    TRACING_DIR="/sys/kernel/debug/tracing"
+	    UMOUNT_DIR=${TRACING_DIR}
+	else
+	    err_ret=$err_skip
+	    errexit "debugfs and tracefs are not configured in this kernel"
+	fi
+    else
+	TRACING_DIR="$DEBUGFS_DIR/tracing"
+    fi
+fi
+if [ ! -d "$TRACING_DIR" ]; then
+    err_ret=$err_skip
+    errexit "ftrace is not configured in this kernel"
+fi
+
 TOP_DIR=`absdir $0`
 TEST_DIR=$TOP_DIR/test.d
 TEST_CASES=`find_testcases $TEST_DIR`
-LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`/
 KEEP_LOG=0
+KTAP=0
 DEBUG=0
 VERBOSE=0
+UNSUPPORTED_RESULT=0
+UNRESOLVED_RESULT=0
+STOP_FAILURE=0
+RV_TEST=0
 # Parse command-line options
 parse_opts $*
 
+LOG_TOP_DIR=$TOP_DIR/logs
+LOG_DATE=`date +%Y%m%d-%H%M%S`
+LOG_DIR=$LOG_TOP_DIR/$LOG_DATE/
+LINK_PTR=$LOG_TOP_DIR/latest
+
 [ $DEBUG -ne 0 ] && set -x
 
-# Verify parameters
-if [ -z "$DEBUGFS_DIR" -o ! -d "$TRACING_DIR" ]; then
-  errexit "No ftrace directory found"
+if [ $RV_TEST -ne 0 ]; then
+	TRACING_DIR=$TRACING_DIR/rv
+	if [ ! -d "$TRACING_DIR" ]; then
+		err_ret=$err_skip
+		errexit "rv is not configured in this kernel"
+	fi
 fi
 
 # Preparing logs
-LOG_FILE=$LOG_DIR/ftracetest.log
-mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
-date > $LOG_FILE
+if [ "x$LOG_DIR" = "x-" ]; then
+  LOG_FILE=
+  date
+else
+  LOG_FILE=$LOG_DIR/ftracetest.log
+  mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
+  date > $LOG_FILE
+  if [ "x-$LINK_PTR" != "x-" ]; then
+    unlink $LINK_PTR
+    ln -fs $LOG_DATE $LINK_PTR
+  fi
+fi
+
+# Define text colors
+# Check available colors on the terminal, if any
+ncolors=`tput colors 2>/dev/null || echo 0`
+color_reset=
+color_red=
+color_green=
+color_blue=
+# If stdout exists and number of colors is eight or more, use them
+if [ -t 1 -a "$ncolors" -ge 8 ]; then
+  color_reset="\033[0m"
+  color_red="\033[31m"
+  color_green="\033[32m"
+  color_blue="\033[34m"
+fi
+
+strip_esc() {
+  # busybox sed implementation doesn't accept "\x1B", so use [:cntrl:] instead.
+  sed -E "s/[[:cntrl:]]\[([0-9]{1,2}(;[0-9]{1,2})?)?[m|K]//g"
+}
+
 prlog() { # messages
-  echo "$@" | tee -a $LOG_FILE
+  newline="\n"
+  if [ "$1" = "-n" ] ; then
+    newline=
+    shift
+  fi
+  [ "$KTAP" != "1" ] && printf "$*$newline"
+  [ "$LOG_FILE" ] && printf "$*$newline" | strip_esc >> $LOG_FILE
 }
 catlog() { #file
-  cat $1 | tee -a $LOG_FILE
+  if [ "${KTAP}" = "1" ]; then
+    cat $1 | while read line ; do
+      echo "# $line"
+    done
+  else
+    cat $1
+  fi
+  [ "$LOG_FILE" ] && cat $1 | strip_esc >> $LOG_FILE
 }
 prlog "=== Ftrace unit tests ==="
 
@@ -138,47 +300,87 @@ XFAILED_CASES=
 UNDEFINED_CASES=
 TOTAL_RESULT=0
 
+INSTANCE=
 CASENO=0
+CASENAME=
+
 testcase() { # testfile
   CASENO=$((CASENO+1))
-  desc=`grep "^#[ \t]*description:" $1 | cut -f2 -d:`
-  prlog -n "[$CASENO]$desc"
+  CASENAME=`grep "^#[ \t]*description:" $1 | cut -f2- -d:`
+}
+
+checkreq() { # testfile
+  requires=`grep "^#[ \t]*requires:" $1 | cut -f2- -d:`
+  # Use eval to pass quoted-patterns correctly.
+  eval check_requires "$requires"
+}
+
+test_on_instance() { # testfile
+  grep -q "^#[ \t]*flags:.*instance" $1
+}
+
+ktaptest() { # result comment
+  if [ "$KTAP" != "1" ]; then
+    return
+  fi
+
+  local result=
+  if [ "$1" = "1" ]; then
+    result="ok"
+  else
+    result="not ok"
+  fi
+  shift
+
+  local comment=$*
+  if [ "$comment" != "" ]; then
+    comment="# $comment"
+  fi
+
+  echo $result $CASENO $INSTANCE$CASENAME $comment
 }
 
 eval_result() { # sigval
   case $1 in
     $PASS)
-      prlog "	[PASS]"
+      prlog "	[${color_green}PASS${color_reset}]"
+      ktaptest 1
       PASSED_CASES="$PASSED_CASES $CASENO"
       return 0
     ;;
     $FAIL)
-      prlog "	[FAIL]"
+      prlog "	[${color_red}FAIL${color_reset}]"
+      ktaptest 0
       FAILED_CASES="$FAILED_CASES $CASENO"
       return 1 # this is a bug.
     ;;
     $UNRESOLVED)
-      prlog "	[UNRESOLVED]"
+      prlog "	[${color_blue}UNRESOLVED${color_reset}]"
+      ktaptest 0 UNRESOLVED
       UNRESOLVED_CASES="$UNRESOLVED_CASES $CASENO"
-      return 1 # this is a kind of bug.. something happened.
+      return $UNRESOLVED_RESULT # depends on use case
     ;;
     $UNTESTED)
-      prlog "	[UNTESTED]"
+      prlog "	[${color_blue}UNTESTED${color_reset}]"
+      ktaptest 1 SKIP
       UNTESTED_CASES="$UNTESTED_CASES $CASENO"
       return 0
     ;;
     $UNSUPPORTED)
-      prlog "	[UNSUPPORTED]"
+      prlog "	[${color_blue}UNSUPPORTED${color_reset}]"
+      ktaptest 1 SKIP
       UNSUPPORTED_CASES="$UNSUPPORTED_CASES $CASENO"
-      return 1 # this is not a bug, but the result should be reported.
+      return $UNSUPPORTED_RESULT # depends on use case
     ;;
     $XFAIL)
-      prlog "	[XFAIL]"
+      prlog "	[${color_green}XFAIL${color_reset}]"
+      ktaptest 1 XFAIL
       XFAILED_CASES="$XFAILED_CASES $CASENO"
       return 0
     ;;
     *)
-      prlog "	[UNDEFINED]"
+      prlog "	[${color_blue}UNDEFINED${color_reset}]"
+      ktaptest 0 error
       UNDEFINED_CASES="$UNDEFINED_CASES $CASENO"
       return 1 # this must be a test bug
     ;;
@@ -190,7 +392,14 @@ SIG_RESULT=
 SIG_BASE=36	# Use realtime signals
 SIG_PID=$$
 
+exit_pass () {
+  exit 0
+}
+
 SIG_FAIL=$((SIG_BASE + FAIL))
+exit_fail () {
+  exit 1
+}
 trap 'SIG_RESULT=$FAIL' $SIG_FAIL
 
 SIG_UNRESOLVED=$((SIG_BASE + UNRESOLVED))
@@ -223,18 +432,32 @@ trap 'SIG_RESULT=$XFAIL' $SIG_XFAIL
 
 __run_test() { # testfile
   # setup PID and PPID, $$ is not updated.
-  (cd $TRACING_DIR; read PID _ < /proc/self/stat ; set -e; set -x; . $1)
+  (cd $TRACING_DIR; read PID _ < /proc/self/stat; set -e; set -x;
+   checkreq $1; initialize_system; . $1)
   [ $? -ne 0 ] && kill -s $SIG_FAIL $SIG_PID
 }
 
 # Run one test case
 run_test() { # testfile
   local testname=`basename $1`
-  local testlog=`mktemp $LOG_DIR/${testname}-log.XXXXXX`
   testcase $1
-  echo "execute: "$1 > $testlog
+  prlog -n "[$CASENO]$INSTANCE$CASENAME"
+  if [ ! -z "$LOG_FILE" ] ; then
+    local testlog=`mktemp $LOG_DIR/${CASENO}-${testname}-log.XXXXXX`
+  else
+    local testlog=/proc/self/fd/1
+  fi
+  export TMPDIR=`mktemp -d /tmp/ftracetest-dir.XXXXXX`
+  export FTRACETEST_ROOT=$TOP_DIR
+  echo "execute$INSTANCE: "$1 > $testlog
   SIG_RESULT=0
-  if [ $VERBOSE -ne 0 ]; then
+  if [ $VERBOSE -eq -1 ]; then
+    __run_test $1
+  elif [ -z "$LOG_FILE" ]; then
+    __run_test $1 2>&1
+  elif [ $VERBOSE -ge 3 ]; then
+    __run_test $1 | tee -a $testlog 2>&1
+  elif [ $VERBOSE -eq 2 ]; then
     __run_test $1 2>> $testlog | tee -a $testlog
   else
     __run_test $1 >> $testlog 2>&1
@@ -242,21 +465,53 @@ run_test() { # testfile
   eval_result $SIG_RESULT
   if [ $? -eq 0 ]; then
     # Remove test log if the test was done as it was expected.
-    [ $KEEP_LOG -eq 0 ] && rm $testlog
+    [ $KEEP_LOG -eq 0 -a ! -z "$LOG_FILE" ] && rm $testlog
   else
-    catlog $testlog
+    [ $VERBOSE -eq 1 -o $VERBOSE -eq 2 ] && catlog $testlog
     TOTAL_RESULT=1
   fi
+  rm -rf $TMPDIR
 }
 
 # load in the helper functions
 . $TEST_DIR/functions
 
+if [ "$KTAP" = "1" ]; then
+  echo "TAP version 13"
+
+  casecount=`echo $TEST_CASES | wc -w`
+  for t in $TEST_CASES; do
+    test_on_instance $t || continue
+    casecount=$((casecount+1))
+  done
+  echo "1..${casecount}"
+fi
+
 # Main loop
 for t in $TEST_CASES; do
   run_test $t
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
+    echo "A failure detected. Stop test."
+    exit 1
+  fi
 done
 
+# Test on instance loop
+INSTANCE=" (instance) "
+for t in $TEST_CASES; do
+  test_on_instance $t || continue
+  SAVED_TRACING_DIR=$TRACING_DIR
+  export TRACING_DIR=`mktemp -d $TRACING_DIR/instances/ftracetest.XXXXXX`
+  run_test $t
+  rmdir $TRACING_DIR
+  TRACING_DIR=$SAVED_TRACING_DIR
+  if [ $STOP_FAILURE -ne 0 -a $TOTAL_RESULT -ne 0 ]; then
+    echo "A failure detected. Stop test."
+    exit 1
+  fi
+done
+(cd $TRACING_DIR; finish_system) # for cleanup
+
 prlog ""
 prlog "# of passed: " `echo $PASSED_CASES | wc -w`
 prlog "# of failed: " `echo $FAILED_CASES | wc -w`
@@ -266,5 +521,18 @@ prlog "# of unsupported: " `echo $UNSUPPORTED_CASES | wc -w`
 prlog "# of xfailed: " `echo $XFAILED_CASES | wc -w`
 prlog "# of undefined(test bug): " `echo $UNDEFINED_CASES | wc -w`
 
+if [ "$KTAP" = "1" ]; then
+  echo -n "# Totals:"
+  echo -n " pass:"`echo $PASSED_CASES | wc -w`
+  echo -n " fail:"`echo $FAILED_CASES | wc -w`
+  echo -n " xfail:"`echo $XFAILED_CASES | wc -w`
+  echo -n " xpass:0"
+  echo -n " skip:"`echo $UNTESTED_CASES $UNSUPPORTED_CASES | wc -w`
+  echo -n " error:"`echo $UNRESOLVED_CASES $UNDEFINED_CASES | wc -w`
+  echo
+fi
+
+cleanup
+
 # if no error, return 0
 exit $TOTAL_RESULT
diff --git a/tools/testing/selftests/ftrace/ftracetest-ktap b/tools/testing/selftests/ftrace/ftracetest-ktap
new file mode 100755
index 000000000000..14e62ef3f3b9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/ftracetest-ktap
@@ -0,0 +1,8 @@
+#!/bin/sh -e
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# ftracetest-ktap: Wrapper to integrate ftracetest with the kselftest runner
+#
+# Copyright (C) Arm Ltd., 2023
+
+./ftracetest -K -v
diff --git a/tools/testing/selftests/ftrace/poll.c b/tools/testing/selftests/ftrace/poll.c
new file mode 100644
index 000000000000..53258f7515e7
--- /dev/null
+++ b/tools/testing/selftests/ftrace/poll.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Simple poll on a file.
+ *
+ * Copyright (c) 2024 Google LLC.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define BUFSIZE 4096
+
+/*
+ * Usage:
+ *  poll [-I|-P] [-t timeout] FILE
+ */
+int main(int argc, char *argv[])
+{
+	struct pollfd pfd = {.events = POLLIN};
+	char buf[BUFSIZE];
+	int timeout = -1;
+	int ret, opt;
+
+	while ((opt = getopt(argc, argv, "IPt:")) != -1) {
+		switch (opt) {
+		case 'I':
+			pfd.events = POLLIN;
+			break;
+		case 'P':
+			pfd.events = POLLPRI;
+			break;
+		case 't':
+			timeout = atoi(optarg);
+			break;
+		default:
+			fprintf(stderr, "Usage: %s [-I|-P] [-t timeout] FILE\n",
+				argv[0]);
+			return -1;
+		}
+	}
+	if (optind >= argc) {
+		fprintf(stderr, "Error: Polling file is not specified\n");
+		return -1;
+	}
+
+	pfd.fd = open(argv[optind], O_RDONLY);
+	if (pfd.fd < 0) {
+		fprintf(stderr, "failed to open %s", argv[optind]);
+		perror("open");
+		return -1;
+	}
+
+	/* Reset poll by read if POLLIN is specified. */
+	if (pfd.events & POLLIN)
+		do {} while (read(pfd.fd, buf, BUFSIZE) == BUFSIZE);
+
+	ret = poll(&pfd, 1, timeout);
+	if (ret < 0 && errno != EINTR) {
+		perror("poll");
+		return -1;
+	}
+	close(pfd.fd);
+
+	/* If timeout happned (ret == 0), exit code is 1 */
+	if (ret == 0)
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/ftrace/settings b/tools/testing/selftests/ftrace/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/ftrace/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
index bf9a7b037924..531e472362df 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
@@ -1,5 +1,7 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Basic test for tracers
+# flags: instance
 test -f available_tracers
 for t in `cat available_tracers`; do
   echo $t > current_tracer
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
index bde6625d9785..58a2506f788e 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
@@ -1,5 +1,7 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Basic trace clock test
+# flags: instance
 test -f trace_clock
 for c in `cat trace_clock | tr  -d \[\]`; do
   echo $c > trace_clock
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
index aa51f6c17359..0696098d6408 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic4.tc
@@ -2,4 +2,4 @@
 # description: Basic event tracing check
 test -f available_events -a -f set_event -a -d events
 # check scheduler events are available
-grep -q sched available_events && exit 0 || exit $FAIL
+grep -q sched available_events && exit_pass || exit_fail
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc
new file mode 100644
index 000000000000..318939451caf
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/mount_options.tc
@@ -0,0 +1,101 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test tracefs GID mount option
+# requires: "[gid=<gid>]":README
+
+fail() {
+	local msg="$1"
+
+	echo "FAILED: $msg"
+	exit_fail
+}
+
+find_alternate_gid() {
+	local original_gid="$1"
+	tac /etc/group | grep -v ":$original_gid:" | head -1 | cut -d: -f3
+}
+
+remount_tracefs_with_options() {
+	local mount_point="$1"
+	local options="$2"
+
+	mount -t tracefs -o "remount,$options" nodev "$mount_point"
+
+	setup
+}
+
+unmount_tracefs() {
+	local mount_point="$1"
+
+	# Need to make sure the mount isn't busy so that we can umount it
+	(cd $mount_point; finish_system;)
+
+	cleanup
+}
+
+create_instance() {
+	local mount_point="$1"
+	local instance="$mount_point/instances/$(mktemp -u test-XXXXXX)"
+
+	mkdir "$instance"
+	echo "$instance"
+}
+
+remove_instance() {
+	local instance="$1"
+
+	rmdir "$instance"
+}
+
+check_gid() {
+	local mount_point="$1"
+	local expected_gid="$2"
+
+	echo "Checking permission group ..."
+
+	cd "$mount_point"
+
+	for file in "." "events" "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable"; do
+		local gid=`stat -c "%g" $file`
+		if [ "$gid" -ne "$expected_gid" ]; then
+			cd - # Return to the previous working directory (tracefs root)
+			fail "$(realpath $file): Expected group $expected_gid; Got group $gid"
+		fi
+	done
+
+	cd - # Return to the previous working directory (tracefs root)
+}
+
+test_gid_mount_option() {
+	local mount_point=$(get_mount_point)
+	local mount_options=$(get_mnt_options "$mount_point")
+	local original_group=$(stat -c "%g" .)
+	local other_group=$(find_alternate_gid "$original_group")
+
+	# Set up mount options with new GID for testing
+	local new_options=`echo "$mount_options" | sed -e "s/gid=[0-9]*/gid=$other_group/"`
+	if [ "$new_options" = "$mount_options" ]; then
+		new_options="$mount_options,gid=$other_group"
+		mount_options="$mount_options,gid=$original_group"
+	fi
+
+	# Unmount existing tracefs instance and mount with new GID
+	unmount_tracefs "$mount_point"
+	remount_tracefs_with_options "$mount_point" "$new_options"
+
+	check_gid "$mount_point" "$other_group"
+
+	# Check that files created after the mount inherit the GID
+	local instance=$(create_instance "$mount_point")
+	check_gid "$instance" "$other_group"
+	remove_instance "$instance"
+
+	# Unmount and remount with the original GID
+	unmount_tracefs "$mount_point"
+	remount_tracefs_with_options "$mount_point" "$mount_options"
+	check_gid "$mount_point" "$original_group"
+}
+
+test_gid_mount_option
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc
new file mode 100644
index 000000000000..ab70f0077c35
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_size.tc
@@ -0,0 +1,22 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Change the ringbuffer size
+# flags: instance
+
+rb_size_test() {
+ORIG=`cat buffer_size_kb`
+
+expr $ORIG / 2 > buffer_size_kb
+
+expr $ORIG \* 2 > buffer_size_kb
+
+echo $ORIG > buffer_size_kb
+}
+
+rb_size_test
+
+: "If per-cpu buffer is supported, imbalance it"
+if [ -d per_cpu/cpu0 ]; then
+  cd per_cpu/cpu0
+  rb_size_test
+fi
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_subbuf_size.tc b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_subbuf_size.tc
new file mode 100644
index 000000000000..d44d09a33a74
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/ringbuffer_subbuf_size.tc
@@ -0,0 +1,95 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Change the ringbuffer sub-buffer size
+# requires: buffer_subbuf_size_kb
+# flags: instance
+
+get_buffer_data_size() {
+	sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page
+}
+
+get_buffer_data_offset() {
+	sed -ne 's/^.*data.*offset:\([0-9][0-9]*\).*/\1/p' events/header_page
+}
+
+get_event_header_size() {
+	type_len=`sed -ne 's/^.*type_len.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	time_len=`sed -ne 's/^.*time_delta.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	array_len=`sed -ne 's/^.*array.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	total_bits=$((type_len+time_len+array_len))
+	total_bits=$((total_bits+7))
+	echo $((total_bits/8))
+}
+
+get_print_event_buf_offset() {
+	sed -ne 's/^.*buf.*offset:\([0-9][0-9]*\).*/\1/p' events/ftrace/print/format
+}
+
+event_header_size=`get_event_header_size`
+print_header_size=`get_print_event_buf_offset`
+
+data_offset=`get_buffer_data_offset`
+
+marker_meta=$((event_header_size+print_header_size))
+
+make_str() {
+        cnt=$1
+	printf -- 'X%.0s' $(seq $cnt)
+}
+
+write_buffer() {
+	size=$1
+
+	str=`make_str $size`
+
+	# clear the buffer
+	echo > trace
+
+	# write the string into the marker
+	echo $str > trace_marker
+
+	echo $str
+}
+
+test_buffer() {
+	size_kb=$1
+	page_size=$((size_kb*1024))
+
+	size=`get_buffer_data_size`
+
+	# the size must be greater than or equal to page_size - data_offset
+	page_size=$((page_size-data_offset))
+	if [ $size -lt $page_size ]; then
+		exit fail
+	fi
+
+	# Now add a little more the meta data overhead will overflow
+
+	str=`write_buffer $size`
+
+	# Make sure the line was broken
+	new_str=`awk ' /tracing_mark_write:/ { sub(/^.*tracing_mark_write: /,"");printf "%s", $0; exit}' trace`
+
+	if [ "$new_str" = "$str" ]; then
+		exit fail;
+	fi
+
+	# Make sure the entire line can be found
+	new_str=`awk ' /tracing_mark_write:/ { sub(/^.*tracing_mark_write: /,"");printf "%s", $0; }' trace`
+
+	if [ "$new_str" != "$str" ]; then
+		exit fail;
+	fi
+}
+
+ORIG=`cat buffer_subbuf_size_kb`
+
+# Could test bigger sizes than 32K, but then creating the string
+# to write into the ring buffer takes too long
+for a in 4 8 16 32 ; do
+	echo $a > buffer_subbuf_size_kb
+	test_buffer $a
+done
+
+echo $ORIG > buffer_subbuf_size_kb
+
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc
new file mode 100644
index 000000000000..13b4dabcf46e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/snapshot.tc
@@ -0,0 +1,27 @@
+#!/bin/sh
+# description: Snapshot and tracing setting
+# requires: snapshot
+# flags: instance
+
+echo "Set tracing off"
+echo 0 > tracing_on
+
+echo "Allocate and take a snapshot"
+echo 1 > snapshot
+
+# Since trace buffer is empty, snapshot is also empty, but allocated
+grep -q "Snapshot is allocated" snapshot
+
+echo "Ensure keep tracing off"
+test `cat tracing_on` -eq 0
+
+echo "Set tracing on"
+echo 1 > tracing_on
+
+echo "Take a snapshot again"
+echo 1 > snapshot
+
+echo "Ensure keep tracing on"
+test `cat tracing_on` -eq 1
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/snapshot1.tc b/tools/testing/selftests/ftrace/test.d/00basic/snapshot1.tc
new file mode 100644
index 000000000000..63b76cf2a360
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/snapshot1.tc
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Snapshot and tracing_cpumask
+# requires: trace_marker tracing_cpumask snapshot
+# flags: instance
+
+# This testcase is constrived to reproduce a problem that the cpu buffers
+# become unavailable which is due to 'record_disabled' of array_buffer and
+# max_buffer being messed up.
+
+# Store origin cpumask
+ORIG_CPUMASK=`cat tracing_cpumask`
+
+# Stop tracing all cpu
+echo 0 > tracing_cpumask
+
+# Take a snapshot of the main buffer
+echo 1 > snapshot
+
+# Restore origin cpumask, note that there should be some cpus being traced
+echo ${ORIG_CPUMASK} > tracing_cpumask
+
+# Set tracing on
+echo 1 > tracing_on
+
+# Write a log into buffer
+echo "test input 1" > trace_marker
+
+# Ensure the log writed so that cpu buffers are still available
+grep -q "test input 1" trace
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc b/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc
new file mode 100644
index 000000000000..e71cc3ad0bdf
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/test_ownership.tc
@@ -0,0 +1,122 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test file and directory ownership changes for eventfs
+# requires: "[gid=<gid>]":README
+
+original_group=`stat -c "%g" .`
+original_owner=`stat -c "%u" .`
+
+local mount_point=$(get_mount_point)
+
+mount_options=$(get_mnt_options "$mount_point")
+
+# find another owner and group that is not the original
+other_group=`tac /etc/group | grep -v ":$original_group:" | head -1 | cut -d: -f3`
+other_owner=`tac /etc/passwd | grep -v ":$original_owner:" | head -1 | cut -d: -f3`
+
+# Remove any group ownership already
+new_options=`echo "$mount_options" | sed -e "s/gid=[0-9]*/gid=$other_group/"`
+
+if [ "$new_options" = "$mount_options" ]; then
+	new_options="$mount_options,gid=$other_group"
+	mount_options="$mount_options,gid=$original_group"
+fi
+
+canary="events/timer events/timer/timer_cancel events/timer/timer_cancel/format"
+
+test() {
+	file=$1
+	test_group=$2
+
+	owner=`stat -c "%u" $file`
+	group=`stat -c "%g" $file`
+
+	echo "testing $file $owner=$original_owner and $group=$test_group"
+	if [ $owner -ne $original_owner ]; then
+		exit_fail
+	fi
+	if [ $group -ne $test_group ]; then
+		exit_fail
+	fi
+
+	# Note, the remount does not update ownership so test going to and from owner
+	echo "test owner $file to $other_owner"
+	chown $other_owner $file
+	owner=`stat -c "%u" $file`
+	if [ $owner -ne $other_owner ]; then
+		exit_fail
+	fi
+
+	chown $original_owner $file
+	owner=`stat -c "%u" $file`
+	if [ $owner -ne $original_owner ]; then
+		exit_fail
+	fi
+
+}
+
+run_tests() {
+	for d in "." "events" "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
+		test "$d" $other_group
+	done
+
+	chgrp $original_group events
+	test "events" $original_group
+	for d in "." "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
+		test "$d" $other_group
+	done
+
+	chgrp $original_group events/sched
+	test "events/sched" $original_group
+	for d in "." "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
+		test "$d" $other_group
+	done
+
+	chgrp $original_group events/sched/sched_switch
+	test "events/sched/sched_switch" $original_group
+	for d in "." "events/sched/sched_switch/enable" $canary; do
+		test "$d" $other_group
+	done
+
+	chgrp $original_group events/sched/sched_switch/enable
+	test "events/sched/sched_switch/enable" $original_group
+	for d in "." $canary; do
+		test "$d" $other_group
+	done
+}
+
+# Run the tests twice as leftovers can cause issues
+for loop in 1 2 ; do
+
+	echo "Running iteration $loop"
+
+	mount -o remount,"$new_options" .
+
+	run_tests
+
+	mount -o remount,"$mount_options" .
+
+	for d in "." "events" "events/sched" "events/sched/sched_switch" "events/sched/sched_switch/enable" $canary; do
+		test "$d" $original_group
+	done
+
+# check instances as well
+
+	chgrp $other_group instances
+
+	instance="$(mktemp -u test-XXXXXX)"
+
+	mkdir instances/$instance
+
+	cd instances/$instance
+
+	run_tests
+
+	cd ../..
+
+	rmdir instances/$instance
+
+	chgrp $original_group instances
+done
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_marker.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker.tc
new file mode 100644
index 000000000000..9aa0db2b84fc
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker.tc
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Basic tests on writing to trace_marker
+# requires: trace_marker
+# flags: instance
+
+get_buffer_data_size() {
+	sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page
+}
+
+get_buffer_data_offset() {
+	sed -ne 's/^.*data.*offset:\([0-9][0-9]*\).*/\1/p' events/header_page
+}
+
+get_event_header_size() {
+	type_len=`sed -ne 's/^.*type_len.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	time_len=`sed -ne 's/^.*time_delta.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	array_len=`sed -ne 's/^.*array.*:[^0-9]*\([0-9][0-9]*\).*/\1/p' events/header_event`
+	total_bits=$((type_len+time_len+array_len))
+	total_bits=$((total_bits+7))
+	echo $((total_bits/8))
+}
+
+get_print_event_buf_offset() {
+	sed -ne 's/^.*buf.*offset:\([0-9][0-9]*\).*/\1/p' events/ftrace/print/format
+}
+
+event_header_size=`get_event_header_size`
+print_header_size=`get_print_event_buf_offset`
+
+data_offset=`get_buffer_data_offset`
+
+marker_meta=$((event_header_size+print_header_size))
+
+make_str() {
+        cnt=$1
+	# subtract two for \n\0 as marker adds these
+	cnt=$((cnt-2))
+	printf -- 'X%.0s' $(seq $cnt)
+}
+
+write_buffer() {
+	size=$1
+
+	str=`make_str $size`
+
+	# clear the buffer
+	echo > trace
+
+	# write the string into the marker
+	echo -n $str > trace_marker
+
+	echo $str
+}
+
+test_buffer() {
+
+	size=`get_buffer_data_size`
+	oneline_size=$((size-marker_meta))
+	echo size = $size
+	echo meta size = $marker_meta
+
+	# Now add a little more the meta data overhead will overflow
+
+	str=`write_buffer $size`
+
+	# Make sure the line was broken
+	new_str=`awk ' /tracing_mark_write:/ { sub(/^.*tracing_mark_write: /,"");printf "%s", $0; exit}' trace`
+
+	if [ "$new_str" = "$str" ]; then
+		exit fail;
+	fi
+
+	# Make sure the entire line can be found
+	new_str=`awk ' /tracing_mark_write:/ { sub(/^.*tracing_mark_write: /,"");printf "%s", $0; }' trace`
+
+	if [ "$new_str" != "$str" ]; then
+		exit fail;
+	fi
+}
+
+test_buffer
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc
new file mode 100644
index 000000000000..7daf7292209e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_marker_raw.tc
@@ -0,0 +1,107 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Basic tests on writing to trace_marker_raw
+# requires: trace_marker_raw
+# flags: instance
+
+is_little_endian() {
+	if lscpu | grep -q 'Little Endian'; then
+		echo 1;
+	else
+		echo 0;
+	fi
+}
+
+little=`is_little_endian`
+
+make_str() {
+	id=$1
+	cnt=$2
+
+	if [ $little -eq 1 ]; then
+		val=`printf "\\%03o\\%03o\\%03o\\%03o" \
+			$(($id & 0xff)) \
+			$((($id >> 8) & 0xff)) \
+			$((($id >> 16) & 0xff)) \
+			$((($id >> 24) & 0xff))`
+	else
+		val=`printf "\\%03o\\%03o\\%03o\\%03o" \
+			$((($id >> 24) & 0xff)) \
+			$((($id >> 16) & 0xff)) \
+			$((($id >> 8) & 0xff)) \
+			$(($id & 0xff))`
+	fi
+
+	data=`printf -- 'X%.0s' $(seq $cnt)`
+
+	printf "${val}${data}"
+}
+
+write_buffer() {
+	id=$1
+	size=$2
+
+	# write the string into the raw marker
+	make_str $id $size > trace_marker_raw
+}
+
+
+test_multiple_writes() {
+
+	# Write a bunch of data where the id is the count of
+	# data to write
+	for i in `seq 1 10` `seq 101 110` `seq 1001 1010`; do
+		write_buffer $i $i
+	done
+
+	# add a little buffer
+	echo stop > trace_marker
+
+	# Check to make sure the number of entries is the id (rounded up by 4)
+	awk '/.*: # [0-9a-f]* / {
+			print;
+			cnt = -1;
+			for (i = 0; i < NF; i++) {
+				# The counter is after the "#" marker
+				if ( $i == "#" ) {
+					i++;
+					cnt = strtonum("0x" $i);
+					num = NF - (i + 1);
+					# The number of items is always rounded up by 4
+					cnt2 = int((cnt + 3) / 4) * 4;
+					if (cnt2 != num) {
+						exit 1;
+					}
+					break;
+				}
+			}
+		}
+	// { if (NR > 30) { exit 0; } } ' trace_pipe;
+}
+
+
+get_buffer_data_size() {
+	sed -ne 's/^.*data.*size:\([0-9][0-9]*\).*/\1/p' events/header_page
+}
+
+test_buffer() {
+
+	# The id must be four bytes, test that 3 bytes fails a write
+	if echo -n abc > ./trace_marker_raw ; then
+		echo "Too small of write expected to fail but did not"
+		exit_fail
+	fi
+
+	size=`get_buffer_data_size`
+	echo size = $size
+
+	# Now add a little more than what it can handle
+
+	if write_buffer 0xdeadbeef $size ; then
+		echo "Too big of write expected to fail but did not"
+		exit_fail
+	fi
+}
+
+test_buffer
+test_multiple_writes
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc
new file mode 100644
index 000000000000..435d07b13407
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc
@@ -0,0 +1,15 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_pipe and trace_marker
+# requires: trace_marker
+# flags: instance
+
+echo "test input 1" > trace_marker
+
+: "trace interface never consume the ring buffer"
+grep -q "test input 1" trace
+grep -q "test input 1" trace
+
+: "trace interface never consume the ring buffer"
+head -n 1 trace_pipe | grep -q "test input 1"
+! grep -q "test input 1" trace
diff --git a/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc b/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc
new file mode 100644
index 000000000000..d75a8695bc21
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc
@@ -0,0 +1,69 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test ftrace direct functions against tracers
+
+rmmod ftrace-direct ||:
+if ! modprobe ftrace-direct ; then
+  echo "No ftrace-direct sample module - please make CONFIG_SAMPLE_FTRACE_DIRECT=m"
+  exit_unresolved;
+fi
+
+echo "Let the module run a little"
+sleep 1
+
+grep -q "my_direct_func: waking up" trace
+
+rmmod ftrace-direct
+
+test_tracer() {
+	tracer=$1
+
+	# tracer -> direct -> no direct > no tracer
+	echo $tracer > current_tracer
+	modprobe ftrace-direct
+	rmmod ftrace-direct
+	echo nop > current_tracer
+
+	# tracer -> direct -> no tracer > no direct
+	echo $tracer > current_tracer
+	modprobe ftrace-direct
+	echo nop > current_tracer
+	rmmod ftrace-direct
+
+	# direct -> tracer -> no tracer > no direct
+	modprobe ftrace-direct
+	echo $tracer > current_tracer
+	echo nop > current_tracer
+	rmmod ftrace-direct
+
+	# direct -> tracer -> no direct > no notracer
+	modprobe ftrace-direct
+	echo $tracer > current_tracer
+	rmmod ftrace-direct
+	echo nop > current_tracer
+}
+
+for t in `cat available_tracers`; do
+	if [ "$t" != "nop" ]; then
+		test_tracer $t
+	fi
+done
+
+echo nop > current_tracer
+rmmod ftrace-direct ||:
+
+# Now do the same thing with another direct function registered
+echo "Running with another ftrace direct function"
+
+rmmod ftrace-direct-too ||:
+modprobe ftrace-direct-too
+
+for t in `cat available_tracers`; do
+	if [ "$t" != "nop" ]; then
+		test_tracer $t
+	fi
+done
+
+echo nop > current_tracer
+rmmod ftrace-direct ||:
+rmmod ftrace-direct-too ||:
diff --git a/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc b/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc
new file mode 100644
index 000000000000..e52e470a1f8f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc
@@ -0,0 +1,80 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test ftrace direct functions against kprobes
+# requires: kprobe_events
+
+rmmod ftrace-direct ||:
+if ! modprobe ftrace-direct ; then
+  echo "No ftrace-direct sample module - please build with CONFIG_SAMPLE_FTRACE_DIRECT=m"
+  exit_unresolved;
+fi
+
+echo "Let the module run a little"
+sleep 1
+
+grep -q "my_direct_func: waking up" trace
+
+rmmod ftrace-direct
+
+echo 'p:kwake wake_up_process task=$arg1' > kprobe_events
+
+start_direct() {
+	echo > trace
+	modprobe ftrace-direct
+	sleep 1
+	grep -q "my_direct_func: waking up" trace
+}
+
+stop_direct() {
+	rmmod ftrace-direct
+}
+
+enable_probe() {
+	echo > trace
+	echo 1 > events/kprobes/kwake/enable
+	sleep 1
+	grep -q "kwake:" trace
+}
+
+disable_probe() {
+	echo 0 > events/kprobes/kwake/enable
+}
+
+test_kprobes() {
+	# probe -> direct -> no direct > no probe
+	enable_probe
+	start_direct
+	stop_direct
+	disable_probe
+
+	# probe -> direct -> no probe > no direct
+	enable_probe
+	start_direct
+	disable_probe
+	stop_direct
+
+	# direct -> probe -> no probe > no direct
+	start_direct
+	enable_probe
+	disable_probe
+	stop_direct
+
+	# direct -> probe -> no direct > no noprobe
+	start_direct
+	enable_probe
+	stop_direct
+	disable_probe
+}
+
+test_kprobes
+
+# Now do this with a second registered direct function
+echo "Running with another ftrace direct function"
+
+modprobe ftrace-direct-too
+
+test_kprobes
+
+rmmod ftrace-direct-too
+
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc
new file mode 100644
index 000000000000..c0cdad4c400e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_btfarg.tc
@@ -0,0 +1,78 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove probes with BTF arguments
+# requires: dynamic_events "<argname>":README
+
+KPROBES=
+FPROBES=
+FIELDS=
+
+if grep -qF "p[:[<group>/][<event>]] <place> [<args>]" README ; then
+  KPROBES=yes
+fi
+if grep -qF "f[:[<group>/][<event>]] <func-name>[%return] [<args>]" README ; then
+  FPROBES=yes
+fi
+if grep -qF "<argname>[->field[->field|.field...]]" README ; then
+  FIELDS=yes
+fi
+
+if [ -z "$KPROBES" -a -z "$FPROBES" ] ; then
+  exit_unsupported
+fi
+
+echo 0 > events/enable
+echo > dynamic_events
+
+TP=kfree
+TP2=kmem_cache_alloc
+TP3=getname_flags
+TP4=sched_wakeup
+
+if [ "$FPROBES" ] ; then
+echo "f:fpevent $TP object" >> dynamic_events
+echo "t:tpevent $TP ptr" >> dynamic_events
+
+grep -q "fpevent.*object=object" dynamic_events
+grep -q "tpevent.*ptr=ptr" dynamic_events
+
+echo > dynamic_events
+
+echo "f:fpevent $TP "'$arg1' >> dynamic_events
+grep -q "fpevent.*object=object" dynamic_events
+
+echo > dynamic_events
+
+echo "f:fpevent $TP "'$arg*' >> dynamic_events
+echo "t:tpevent $TP "'$arg*' >> dynamic_events
+
+grep -q "fpevent.*object=object" dynamic_events
+grep -q "tpevent.*ptr=ptr" dynamic_events
+! grep -q "tpevent.*_data" dynamic_events
+fi
+
+echo > dynamic_events
+
+if [ "$FIELDS" -a "$FPROBES" ] ; then
+echo "t:tpevent ${TP2} obj_size=s->object_size" >> dynamic_events
+echo "f:fpevent ${TP3}%return path=\$retval->name:string" >> dynamic_events
+echo "t:tpevent2 ${TP4} p->se.group_node.next->prev" >> dynamic_events
+
+grep -q "tpevent .*obj_size=s->object_size" dynamic_events
+grep -q "fpevent.*path=\$retval->name:string" dynamic_events
+grep -q 'tpevent2 .*p->se.group_node.next->prev' dynamic_events
+
+echo > dynamic_events
+fi
+
+if [ "$KPROBES" ] ; then
+echo "p:kpevent $TP object" >> dynamic_events
+grep -q "kpevent.*object=object" dynamic_events
+
+echo > dynamic_events
+
+echo "p:kpevent $TP "'$arg*' >> dynamic_events
+grep -q "kpevent.*object=object" dynamic_events
+fi
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
new file mode 100644
index 000000000000..c300eb020262
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
@@ -0,0 +1,97 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove eprobe events
+# requires: dynamic_events events/syscalls/sys_enter_openat "<attached-group>.<attached-event> [<args>]":README
+
+echo 0 > events/enable
+
+clear_dynamic_events
+
+SYSTEM="syscalls"
+EVENT="sys_enter_openat"
+FIELD="filename"
+EPROBE="eprobe_open"
+OPTIONS="file=+0(\$filename):ustring"
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+
+echo 1 > events/eprobes/$EPROBE/enable
+ls
+echo 0 > events/eprobes/$EPROBE/enable
+
+content=`grep '^ *ls-' trace | grep 'file='`
+nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."' -e '(fault)' ` || true
+
+if [ -z "$content" ]; then
+	exit_fail
+fi
+
+if [ ! -z "$nocontent" ]; then
+	exit_fail
+fi
+
+echo "-:$EPROBE" >> dynamic_events
+
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# test various ways to remove the probe (already tested with just event name)
+
+# With group name
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With group name and system/event
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With just event name and system/event
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:$EPROBE $SYSTEM/$EVENT" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With just event name and system/event and options
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# With group name and system/event and options
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+# Finally make sure what is in the dynamic_events file clears it too
+echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+LINE=`sed -e '/$EPROBE/s/^e/-/' < dynamic_events`
+test -d events/eprobes/$EPROBE
+echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/eprobes/$EPROBE
+
+if grep -q "e\[:\[<group>/]\[<event>]]" README; then
+	echo "e:mygroup/ $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
+	test -d events/mygroup
+	echo "-:mygroup/" >> dynamic_events
+	! test -d events/mygroup
+fi
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc
new file mode 100644
index 000000000000..47067a5e3cb0
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe.tc
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove fprobe events
+# requires: dynamic_events "f[:[<group>/][<event>]] <func-name>[%return] [<args>]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+PLACE=$FUNCTION_FORK
+PLACE2="kmem_cache_free"
+PLACE3="schedule_timeout"
+
+# Some functions may have BPF programs attached, therefore
+# count already enabled_functions before tests start
+ocnt=`cat enabled_functions | wc -l`
+
+echo "f:myevent1 $PLACE" >> dynamic_events
+
+echo "f:myevent2 $PLACE%return" >> dynamic_events
+
+# add another event
+echo "f:myevent3 $PLACE2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+grep -q myevent3 dynamic_events
+test -d events/fprobes/myevent1
+test -d events/fprobes/myevent2
+
+echo 1 > events/fprobes/myevent1/enable
+# Make sure the event is attached.
+grep -q $PLACE enabled_functions
+cnt=`cat enabled_functions | wc -l`
+if [ $cnt -eq $ocnt ]; then
+	exit_fail
+fi
+
+echo 1 > events/fprobes/myevent2/enable
+cnt2=`cat enabled_functions | wc -l`
+
+echo 1 > events/fprobes/myevent3/enable
+# If the function is different, the attached function should be increased
+grep -q $PLACE2 enabled_functions
+cnt=`cat enabled_functions | wc -l`
+if [ $cnt -eq $cnt2 ]; then
+	exit_fail
+fi
+
+echo 0 > events/fprobes/myevent2/enable
+echo "-:myevent2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+! grep -q myevent2 dynamic_events
+
+echo 0 > events/fprobes/enable
+echo > dynamic_events
+
+# Should have none left
+cnt=`cat enabled_functions | wc -l`
+if [ $cnt -ne $ocnt ]; then
+	exit_fail
+fi
+
+echo "f:myevent4 $PLACE" >> dynamic_events
+
+echo 1 > events/fprobes/myevent4/enable
+# Should only have one enabled
+cnt=`cat enabled_functions | wc -l`
+if [ $cnt -ne $((ocnt + 1)) ]; then
+	exit_fail
+fi
+
+echo 0 > events/fprobes/enable
+echo > dynamic_events
+
+# Should have none left
+cnt=`cat enabled_functions | wc -l`
+if [ $cnt -ne $ocnt ]; then
+	exit_fail
+fi
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe_repeat.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe_repeat.tc
new file mode 100644
index 000000000000..b4ad09237e2a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_fprobe_repeat.tc
@@ -0,0 +1,19 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - Repeating add/remove fprobe events
+# requires: dynamic_events "f[:[<group>/][<event>]] <func-name>[%return] [<args>]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+PLACE=$FUNCTION_FORK
+REPEAT_TIMES=64
+
+for i in `seq 1 $REPEAT_TIMES`; do
+  echo "f:myevent $PLACE" >> dynamic_events
+  grep -q myevent dynamic_events
+  test -d events/fprobes/myevent
+  echo > dynamic_events
+done
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc
new file mode 100644
index 000000000000..13d43f40a6fc
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc
@@ -0,0 +1,33 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove kprobe events
+# requires: dynamic_events "place: [<module>:]<symbol>":README "place (kretprobe): [<module>:]<symbol>":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+PLACE=$FUNCTION_FORK
+
+echo "p:myevent1 $PLACE" >> dynamic_events
+echo "r:myevent2 $PLACE" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+test -d events/kprobes/myevent1
+test -d events/kprobes/myevent2
+
+echo "-:myevent2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+! grep -q myevent2 dynamic_events
+
+echo > dynamic_events
+
+if grep -q "p\[:\[<group>/]\[<event>]]" README; then
+	echo "p:mygroup/ $PLACE" >> dynamic_events
+	test -d events/mygroup
+	echo "-:mygroup/" >> dynamic_events
+	! test -d events/mygroup
+fi
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_synth.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_synth.tc
new file mode 100644
index 000000000000..2b94611e1a28
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_synth.tc
@@ -0,0 +1,24 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove synthetic events
+# requires: dynamic_events "s:[synthetic/]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events
+echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events
+
+grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+test -d events/synthetic/latency1
+test -d events/synthetic/latency2
+
+echo "-:synthetic/latency2" >> dynamic_events
+
+grep -q latency1 dynamic_events
+! grep -q latency2 dynamic_events
+
+echo > dynamic_events
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc
new file mode 100644
index 000000000000..f271c4238b72
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe.tc
@@ -0,0 +1,41 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove tracepoint probe events
+# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+SUBSYSTEM=kmem
+TRACEPOINT1=kmem_cache_alloc
+TRACEPOINT2=kmem_cache_free
+
+echo "t:myevent1 $TRACEPOINT1" >> dynamic_events
+echo "t:myevent2 $TRACEPOINT2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+test -d events/tracepoints/myevent1
+test -d events/tracepoints/myevent2
+
+echo "-:myevent2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+! grep -q myevent2 dynamic_events
+
+echo > dynamic_events
+
+# auto naming check
+echo "t $TRACEPOINT1" >> dynamic_events
+
+test -d events/tracepoints/$TRACEPOINT1
+
+echo > dynamic_events
+
+# SUBSYSTEM is not supported
+echo "t $SUBSYSTEM/$TRACEPOINT1" >> dynamic_events && exit_fail ||:
+echo "t $SUBSYSTEM:$TRACEPOINT1" >> dynamic_events && exit_fail ||:
+echo "t:myevent3 $SUBSYSTEM/$TRACEPOINT1" >> dynamic_events && exit_fail ||:
+echo "t:myevent3 $SUBSYSTEM:$TRACEPOINT1" >> dynamic_events && exit_fail ||:
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe_module.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe_module.tc
new file mode 100644
index 000000000000..d319d5ed4226
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_tprobe_module.tc
@@ -0,0 +1,61 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove tracepoint probe events on module
+# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README
+
+rmmod trace-events-sample ||:
+if ! modprobe trace-events-sample ; then
+  echo "No trace-events sample module - please make CONFIG_SAMPLE_TRACE_EVENTS=m"
+  exit_unresolved;
+fi
+trap "rmmod trace-events-sample" EXIT
+
+echo 0 > events/enable
+echo > dynamic_events
+
+TRACEPOINT1=foo_bar
+TRACEPOINT2=foo_bar_with_cond
+
+echo "t:myevent1 $TRACEPOINT1" >> dynamic_events
+echo "t:myevent2 $TRACEPOINT2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+test -d events/tracepoints/myevent1
+test -d events/tracepoints/myevent2
+
+echo "-:myevent2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+! grep -q myevent2 dynamic_events
+
+echo > dynamic_events
+
+clear_trace
+
+:;: "Try to put a probe on a tracepoint in non-loaded module" ;:
+rmmod trace-events-sample
+
+echo "t:myevent1 $TRACEPOINT1" >> dynamic_events
+echo "t:myevent2 $TRACEPOINT2" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+test -d events/tracepoints/myevent1
+test -d events/tracepoints/myevent2
+
+echo 1 > events/tracepoints/enable
+
+modprobe trace-events-sample
+
+sleep 2
+
+grep -q "myevent1" trace
+grep -q "myevent2" trace
+
+rmmod trace-events-sample
+trap "" EXIT
+
+echo 0 > events/tracepoints/enable
+echo > dynamic_events
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_uprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_uprobe.tc
new file mode 100644
index 000000000000..f2048c244526
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_uprobe.tc
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - add/remove/test uprobe events
+# requires: uprobe_events
+
+if ! which readelf > /dev/null 2>&1 ; then
+  echo "No readelf found. skipped."
+  exit_unresolved
+fi
+
+echo 0 > events/enable
+echo > dynamic_events
+
+REALBIN=`readlink -f /bin/sh`
+ENTRYPOINT=`readelf -h ${REALBIN} | grep Entry | sed -e 's/[^0]*//'`
+
+echo "p:myevent ${REALBIN}:${ENTRYPOINT}" >> uprobe_events
+
+grep -q myevent uprobe_events
+test -d events/uprobes/myevent
+
+echo 1 > events/uprobes/myevent/enable
+echo 'ls' | /bin/sh > /dev/null
+echo 0 > events/uprobes/myevent/enable
+grep -q myevent trace
+
+echo "-:myevent" >> uprobe_events
+! grep -q myevent uprobe_events
+
+echo > uprobe_events
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc b/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc
new file mode 100644
index 000000000000..3a0e2885fff5
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/clear_select_events.tc
@@ -0,0 +1,41 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - selective clear (compatibility)
+# requires: dynamic_events kprobe_events synthetic_events "place: [<module>:]<symbol>":README "place (kretprobe): [<module>:]<symbol>":README "s:[synthetic/]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+PLACE=$FUNCTION_FORK
+
+setup_events() {
+echo "p:myevent1 $PLACE" >> dynamic_events
+echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events
+echo "r:myevent2 $PLACE" >> dynamic_events
+echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+}
+
+setup_events
+echo > synthetic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+! grep -q latency1 dynamic_events
+! grep -q latency2 dynamic_events
+
+echo > dynamic_events
+
+setup_events
+echo > kprobe_events
+
+! grep -q myevent1 dynamic_events
+! grep -q myevent2 dynamic_events
+grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+
+echo > dynamic_events
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc b/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc
new file mode 100644
index 000000000000..f656bccb1a14
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/dynevent_limitations.tc
@@ -0,0 +1,63 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Checking dynamic events limitations
+# requires: dynamic_events "imm-value":README
+
+# Max arguments limitation
+MAX_ARGS=128
+EXCEED_ARGS=$((MAX_ARGS + 1))
+
+# bash and dash evaluate variables differently.
+# dash will evaluate '\\' every time it is read whereas bash does not.
+#
+#   TEST_STRING="$TEST_STRING \\$i"
+#   echo $TEST_STRING
+#
+# With i=123
+# On bash, that will print "\123"
+# but on dash, that will print the escape sequence of \123 as the \ will
+# be interpreted again in the echo.
+#
+# Set a variable "bs" to save a double backslash, then echo that
+# to "ts" to see if $ts changed or not. If it changed, it's dash,
+# if not, it's bash, and then bs can equal a single backslash.
+bs='\\'
+ts=`echo $bs`
+if [ "$ts" = '\\' ]; then
+  # this is bash
+  bs='\'
+fi
+
+check_max_args() { # event_header
+  TEST_STRING=$1
+  # Acceptable
+  for i in `seq 1 $MAX_ARGS`; do
+    TEST_STRING="$TEST_STRING $bs$i"
+  done
+  echo "$TEST_STRING" >> dynamic_events
+  echo > dynamic_events
+  # Error
+  TEST_STRING="$TEST_STRING \\$EXCEED_ARGS"
+  ! echo "$TEST_STRING" >> dynamic_events
+  return 0
+}
+
+# Kprobe max args limitation
+if grep -q "kprobe_events" README; then
+  check_max_args "p vfs_read"
+fi
+
+# Fprobe max args limitation
+if grep -q "f[:[<group>/][<event>]] <func-name>[%return] [<args>]" README; then
+  check_max_args "f vfs_read"
+fi
+
+# Tprobe max args limitation
+if grep -q "t[:[<group>/][<event>]] <tracepoint> [<args>]" README; then
+  check_max_args "t kfree"
+fi
+
+# Uprobe max args limitation
+if grep -q "uprobe_events" README; then
+  check_max_args "p /bin/sh:10"
+fi
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc
new file mode 100644
index 000000000000..c1f1cafa30f3
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/enable_disable_tprobe.tc
@@ -0,0 +1,40 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - enable/disable tracepoint probe events
+# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+TRACEPOINT=sched_switch
+ENABLEFILE=events/tracepoints/myprobe/enable
+
+:;: "Add tracepoint event on $TRACEPOINT" ;:
+
+echo "t:myprobe ${TRACEPOINT}" >> dynamic_events
+
+:;: "Check enable/disable to ensure it works" ;:
+
+echo 1 > $ENABLEFILE
+
+grep -q $TRACEPOINT trace
+
+echo 0 > $ENABLEFILE
+
+echo > trace
+
+! grep -q $TRACEPOINT trace
+
+:;: "Repeat enable/disable to ensure it works" ;:
+
+echo 1 > $ENABLEFILE
+
+grep -q $TRACEPOINT trace
+
+echo 0 > $ENABLEFILE
+
+echo > trace
+
+! grep -q $TRACEPOINT trace
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/eprobes_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/eprobes_syntax_errors.tc
new file mode 100644
index 000000000000..4f5e8c665156
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/eprobes_syntax_errors.tc
@@ -0,0 +1,29 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Event probe event parser error log check
+# requires: dynamic_events events/syscalls/sys_enter_openat "<attached-group>.<attached-event> [<args>]":README error_log
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'event_probe' "$1" 'dynamic_events'
+}
+
+check_error 'e ^a.'			# NO_EVENT_INFO
+check_error 'e ^.b'			# NO_EVENT_INFO
+check_error 'e ^a.b'			# BAD_ATTACH_EVENT
+check_error 'e syscalls/sys_enter_openat ^foo'	# BAD_ATTACH_ARG
+check_error 'e:^/bar syscalls/sys_enter_openat'	# NO_GROUP_NAME
+check_error 'e:^12345678901234567890123456789012345678901234567890123456789012345/bar syscalls/sys_enter_openat'	# GROUP_TOO_LONG
+
+check_error 'e:^foo.1/bar syscalls/sys_enter_openat'	# BAD_GROUP_NAME
+check_error 'e:^ syscalls/sys_enter_openat'		# NO_EVENT_NAME
+check_error 'e:foo/^12345678901234567890123456789012345678901234567890123456789012345 syscalls/sys_enter_openat'	# EVENT_TOO_LONG
+check_error 'e:foo/^bar.1 syscalls/sys_enter_openat'	# BAD_EVENT_NAME
+
+check_error 'e:foo/bar syscalls/sys_enter_openat arg=^dfd'	# BAD_FETCH_ARG
+check_error 'e:foo/bar syscalls/sys_enter_openat ^arg=$foo'	# BAD_ATTACH_ARG
+
+if grep -q '<attached-group>\.<attached-event>.*\[if <filter>\]' README; then
+  check_error 'e:foo/bar syscalls/sys_enter_openat if ^'	# NO_EP_FILTER
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc
new file mode 100644
index 000000000000..c6a9d2466a71
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_args_vfs.tc
@@ -0,0 +1,41 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Fprobe event VFS type argument
+# requires: dynamic_events "%pd/%pD":README "f[:[<group>/][<event>]] <func-name>[%return] [<args>]":README
+
+
+: "Test argument %pd with name for fprobe"
+echo 'f:testprobe dput name=$arg1:%pd' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pd without name for fprobe"
+echo 'f:testprobe dput $arg1:%pd' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pD with name for fprobe"
+echo 'f:testprobe vfs_read name=$arg1:%pD' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1" events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
+
+: "Test argument %pD without name for fprobe"
+echo 'f:testprobe vfs_read $arg1:%pD' > dynamic_events
+echo 1 > events/fprobes/testprobe/enable
+grep -q "1"  events/fprobes/testprobe/enable
+echo 0 > events/fprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > dynamic_events
+echo "" > trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_entry_arg.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_entry_arg.tc
new file mode 100644
index 000000000000..1e251ce2998e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_entry_arg.tc
@@ -0,0 +1,18 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Function return probe entry argument access
+# requires: dynamic_events 'f[:[<group>/][<event>]] <func-name>':README 'kernel return probes support:':README
+
+echo 'f:tests/myevent1 vfs_open arg=$arg1' >> dynamic_events
+echo 'f:tests/myevent2 vfs_open%return arg=$arg1' >> dynamic_events
+
+echo 1 > events/tests/enable
+
+echo > trace
+cat trace > /dev/null
+
+streq() {
+	test $1 = $2
+}
+
+streq `grep -A 1 -m 1 myevent1 trace | sed -r 's/^.*(arg=.*)/\1/' `
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc
new file mode 100644
index 000000000000..fee479295e2f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/fprobe_syntax_errors.tc
@@ -0,0 +1,122 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Fprobe event parser error log check
+# requires: dynamic_events "f[:[<group>/][<event>]] <func-name>[%return] [<args>]":README
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'trace_fprobe' "$1" 'dynamic_events'
+}
+
+case `uname -m` in
+x86_64|i[3456]86)
+  REG=%ax ;;
+aarch64)
+  REG=%x0 ;;
+*)
+  REG=%r0 ;;
+esac
+
+check_error 'f^100 vfs_read'		# BAD_MAXACT
+
+check_error 'f ^non_exist_func'		# BAD_PROBE_ADDR (enoent)
+check_error 'f ^vfs_read+10'		# BAD_PROBE_ADDR
+check_error 'f:^/bar vfs_read'		# NO_GROUP_NAME
+check_error 'f:^12345678901234567890123456789012345678901234567890123456789012345/bar vfs_read'	# GROUP_TOO_LONG
+
+check_error 'f:^foo.1/bar vfs_read'	# BAD_GROUP_NAME
+check_error 'f:^ vfs_read'		# NO_EVENT_NAME
+check_error 'f:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read'	# EVENT_TOO_LONG
+check_error 'f:foo/^bar.1 vfs_read'	# BAD_EVENT_NAME
+check_error 't kmem^/kfree'       # BAD_TP_NAME
+
+check_error 'f vfs_read ^$stack10000'	# BAD_STACK_NUM
+
+check_error 'f vfs_read ^$arg10000'	# BAD_ARG_NUM
+
+if !grep -q 'kernel return probes support:' README; then
+check_error 'f vfs_read $retval ^$arg1' # BAD_VAR
+fi
+check_error 'f vfs_read ^$none_var'	# BAD_VAR
+check_error 'f vfs_read ^'$REG		# BAD_VAR
+
+check_error 'f vfs_read ^@12345678abcde'	# BAD_MEM_ADDR
+check_error 'f vfs_read ^@+10'		# FILE_ON_KPROBE
+
+grep -q "imm-value" README && \
+check_error 'f vfs_read arg1=\^x'	# BAD_IMM
+grep -q "imm-string" README && \
+check_error 'f vfs_read arg1=\"abcd^'	# IMMSTR_NO_CLOSE
+
+check_error 'f vfs_read ^+0@0)'		# DEREF_NEED_BRACE
+check_error 'f vfs_read ^+0ab1(@0)'	# BAD_DEREF_OFFS
+check_error 'f vfs_read +0(+0(@0^)'	# DEREF_OPEN_BRACE
+
+if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then
+check_error 'f vfs_read +0(^$comm)'	# COMM_CANT_DEREF
+fi
+
+check_error 'f vfs_read ^&1'		# BAD_FETCH_ARG
+
+
+# We've introduced this limitation with array support
+if grep -q ' <type>\\\[<array-size>\\\]' README; then
+check_error 'f vfs_read +0(^+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(@0))))))))))))))'	# TOO_MANY_OPS?
+check_error 'f vfs_read +0(@11):u8[10^'		# ARRAY_NO_CLOSE
+check_error 'f vfs_read +0(@11):u8[10]^a'	# BAD_ARRAY_SUFFIX
+check_error 'f vfs_read +0(@11):u8[^10a]'	# BAD_ARRAY_NUM
+check_error 'f vfs_read +0(@11):u8[^256]'	# ARRAY_TOO_BIG
+fi
+
+check_error 'f vfs_read @11:^unknown_type'	# BAD_TYPE
+check_error 'f vfs_read $stack0:^string'	# BAD_STRING
+check_error 'f vfs_read @11:^b10@a/16'		# BAD_BITFIELD
+
+check_error 'f vfs_read ^arg123456789012345678901234567890=@11'	# ARG_NAME_TOO_LOG
+check_error 'f vfs_read ^=@11'			# NO_ARG_NAME
+check_error 'f vfs_read ^var.1=@11'		# BAD_ARG_NAME
+check_error 'f vfs_read var1=@11 ^var1=@12'	# USED_ARG_NAME
+check_error 'f vfs_read ^+1234567(+1234567(+1234567(+1234567(+1234567(+1234567(@1234))))))'	# ARG_TOO_LONG
+check_error 'f vfs_read arg1=^'			# NO_ARG_BODY
+
+
+# multiprobe errors
+if grep -q "Create/append/" README && grep -q "imm-value" README; then
+echo "f:fprobes/testevent $FUNCTION_FORK" > dynamic_events
+check_error '^f:fprobes/testevent do_exit%return'	# DIFF_PROBE_TYPE
+
+# Explicitly use printf "%s" to not interpret \1
+printf "%s" "f:fprobes/testevent $FUNCTION_FORK abcd=\\1" > dynamic_events
+check_error "f:fprobes/testevent $FUNCTION_FORK ^bcd=\\1"	# DIFF_ARG_TYPE
+check_error "f:fprobes/testevent $FUNCTION_FORK ^abcd=\\1:u8"	# DIFF_ARG_TYPE
+check_error "f:fprobes/testevent $FUNCTION_FORK ^abcd=\\\"foo\"" # DIFF_ARG_TYPE
+check_error "^f:fprobes/testevent $FUNCTION_FORK abcd=\\1"	# SAME_PROBE
+fi
+
+# %return suffix errors
+check_error 'f vfs_read^%hoge'		# BAD_ADDR_SUFFIX
+
+# BTF arguments errors
+if grep -q "<argname>" README; then
+check_error 'f vfs_read args=^$arg*'		# BAD_VAR_ARGS
+check_error 'f vfs_read +0(^$arg*)'		# BAD_VAR_ARGS
+check_error 'f vfs_read $arg* ^$arg*'		# DOUBLE_ARGS
+if !grep -q 'kernel return probes support:' README; then
+check_error 'f vfs_read%return ^$arg*'		# NOFENTRY_ARGS
+fi
+check_error 'f vfs_read ^hoge'			# NO_BTFARG
+check_error 'f kfree ^$arg10'			# NO_BTFARG (exceed the number of parameters)
+check_error 'f kfree%return ^$retval'		# NO_RETVAL
+
+if grep -qF "<argname>[->field[->field|.field...]]" README ; then
+check_error 'f vfs_read%return $retval->^foo'	# NO_PTR_STRCT
+check_error 'f vfs_read file->^foo'		# NO_BTF_FIELD
+check_error 'f vfs_read file^-.foo'		# BAD_HYPHEN
+check_error 'f vfs_read ^file:string'		# BAD_TYPE4STR
+fi
+
+else
+check_error 'f vfs_read ^$arg*'			# NOSUP_BTFARG
+check_error 't kfree ^$arg*'			# NOSUP_BTFARG
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc b/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc
new file mode 100644
index 000000000000..d3e138e8377f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/generic_clear_event.tc
@@ -0,0 +1,43 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - generic clear event
+# requires: dynamic_events "place: [<module>:]<symbol>":README "place (kretprobe): [<module>:]<symbol>":README "s:[synthetic/]":README
+
+echo 0 > events/enable
+echo > dynamic_events
+
+PLACE=$FUNCTION_FORK
+
+setup_events() {
+echo "p:myevent1 $PLACE" >> dynamic_events
+echo "s:latency1 u64 lat; pid_t pid;" >> dynamic_events
+echo "r:myevent2 $PLACE" >> dynamic_events
+echo "s:latency2 u64 lat; pid_t pid;" >> dynamic_events
+
+grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+}
+
+setup_events
+
+echo "!p:myevent1 $PLACE" >> dynamic_events
+! grep -q myevent1 dynamic_events
+grep -q myevent2 dynamic_events
+grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+
+echo "!s:latency1 u64 lat; pid_t pid;" >> dynamic_events
+grep -q myevent2 dynamic_events
+! grep -q latency1 dynamic_events
+grep -q latency2 dynamic_events
+
+echo "!r:myevent2 $PLACE" >> dynamic_events
+! grep -q myevent2 dynamic_events
+grep -q latency2 dynamic_events
+
+echo "!s:latency2 u64 lat; pid_t pid;" >> dynamic_events
+! grep -q latency2 dynamic_events
+
+echo > dynamic_events
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
new file mode 100644
index 000000000000..5f72abe6fa79
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/test_duplicates.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Generic dynamic event - check if duplicate events are caught
+# requires: dynamic_events "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README events/syscalls/sys_enter_openat
+
+echo 0 > events/enable
+
+HAVE_KPROBES=0
+
+if [ -f kprobe_events ]; then
+	HAVE_KPROBES=1
+fi
+
+clear_dynamic_events
+
+# first create dynamic events for eprobes and kprobes.
+
+echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events
+
+# Test eprobe for same eprobe, existing kprobe and existing event
+! echo 'e:egroup/eevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events
+! echo 'e:syscalls/sys_enter_open syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events
+
+if [ $HAVE_KPROBES -eq 1 ]; then
+    echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events
+    ! echo 'e:kgroup/kevent syscalls/sys_enter_openat file=+0($filename):ustring' >> dynamic_events
+
+# Test kprobe for same kprobe, existing eprobe and existing event
+    ! echo 'p:kgroup/kevent vfs_open file=+0($arg2)' >> dynamic_events
+    ! echo 'p:egroup/eevent vfs_open file=+0($arg2)' >> dynamic_events
+    ! echo 'p:syscalls/sys_enter_open vfs_open file=+0($arg2)' >> dynamic_events
+
+    echo '-:kgroup/kevent' >> dynamic_events
+fi
+
+echo '-:egroup/eevent' >> dynamic_events
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/tprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/dynevent/tprobe_syntax_errors.tc
new file mode 100644
index 000000000000..ffe8ffef4027
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/tprobe_syntax_errors.tc
@@ -0,0 +1,81 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Tracepoint probe event parser error log check
+# requires: dynamic_events "t[:[<group>/][<event>]] <tracepoint> [<args>]":README
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'trace_fprobe' "$1" 'dynamic_events'
+}
+
+check_error 't^100 kfree'		# BAD_MAXACT_TYPE
+
+check_error 't:^/bar kfree'		# NO_GROUP_NAME
+check_error 't:^12345678901234567890123456789012345678901234567890123456789012345/bar kfree'	# GROUP_TOO_LONG
+
+check_error 't:^foo.1/bar kfree'	# BAD_GROUP_NAME
+check_error 't:^ kfree'			# NO_EVENT_NAME
+check_error 't:foo/^12345678901234567890123456789012345678901234567890123456789012345 kfree'	# EVENT_TOO_LONG
+check_error 't:foo/^bar.1 kfree'	# BAD_EVENT_NAME
+
+check_error 't kfree ^$retval'		# RETVAL_ON_PROBE
+check_error 't kfree ^$stack10000'	# BAD_STACK_NUM
+
+check_error 't kfree ^$arg10000'	# BAD_ARG_NUM
+
+check_error 't kfree ^$none_var'	# BAD_VAR
+check_error 't kfree ^%rax'		# BAD_VAR
+
+check_error 't kfree ^@12345678abcde'	# BAD_MEM_ADDR
+check_error 't kfree ^@+10'		# FILE_ON_KPROBE
+
+grep -q "imm-value" README && \
+check_error 't kfree arg1=\^x'	# BAD_IMM
+grep -q "imm-string" README && \
+check_error 't kfree arg1=\"abcd^'	# IMMSTR_NO_CLOSE
+
+check_error 't kfree ^+0@0)'		# DEREF_NEED_BRACE
+check_error 't kfree ^+0ab1(@0)'	# BAD_DEREF_OFFS
+check_error 't kfree +0(+0(@0^)'	# DEREF_OPEN_BRACE
+
+if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then
+check_error 't kfree +0(^$comm)'	# COMM_CANT_DEREF
+fi
+
+check_error 't kfree ^&1'		# BAD_FETCH_ARG
+
+
+# We've introduced this limitation with array support
+if grep -q ' <type>\\\[<array-size>\\\]' README; then
+check_error 't kfree +0(^+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(@0))))))))))))))'	# TOO_MANY_OPS?
+check_error 't kfree +0(@11):u8[10^'		# ARRAY_NO_CLOSE
+check_error 't kfree +0(@11):u8[10]^a'		# BAD_ARRAY_SUFFIX
+check_error 't kfree +0(@11):u8[^10a]'		# BAD_ARRAY_NUM
+check_error 't kfree +0(@11):u8[^256]'		# ARRAY_TOO_BIG
+fi
+
+check_error 't kfree @11:^unknown_type'		# BAD_TYPE
+check_error 't kfree $stack0:^string'		# BAD_STRING
+check_error 't kfree @11:^b10@a/16'		# BAD_BITFIELD
+
+check_error 't kfree ^arg123456789012345678901234567890=@11'	# ARG_NAME_TOO_LOG
+check_error 't kfree ^=@11'			# NO_ARG_NAME
+check_error 't kfree ^var.1=@11'		# BAD_ARG_NAME
+check_error 't kfree var1=@11 ^var1=@12'	# USED_ARG_NAME
+check_error 't kfree ^+1234567(+1234567(+1234567(+1234567(+1234567(+1234567(@1234))))))'	# ARG_TOO_LONG
+check_error 't kfree arg1=^'			# NO_ARG_BODY
+
+
+# multiprobe errors
+if grep -q "Create/append/" README && grep -q "imm-value" README; then
+echo "t:tracepoint/testevent kfree" > dynamic_events
+check_error '^f:tracepoint/testevent kfree'	# DIFF_PROBE_TYPE
+
+# Explicitly use printf "%s" to not interpret \1
+printf "%s" "t:tracepoints/testevent kfree abcd=\\1" > dynamic_events
+check_error "t:tracepoints/testevent kfree ^bcd=\\1"	# DIFF_ARG_TYPE
+check_error "t:tracepoints/testevent kfree ^abcd=\\1:u8"	# DIFF_ARG_TYPE
+check_error "t:tracepoints/testevent kfree ^abcd=\\\"foo\"" # DIFF_ARG_TYPE
+check_error "^t:tracepoints/testevent kfree abcd=\\1"	# SAME_PROBE
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 87eb9d6dd4ca..cfe5bd2d4267 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -1,5 +1,8 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with event level files
+# requires: set_event events/sched
+# flags: instance
 
 do_reset() {
     echo > set_event
@@ -7,23 +10,10 @@ do_reset() {
 }
 
 fail() { #msg
-    do_reset
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
-yield() {
-    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
-}
-
-if [ ! -f set_event -o ! -d events/sched ]; then
-    echo "event tracing is not supported"
-    exit_unsupported
-fi
-
-reset_tracer
-do_reset
-
 echo 'sched:sched_switch' > set_event
 
 yield
@@ -55,6 +45,4 @@ if [ $count -ne 0 ]; then
     fail "sched_switch events should not be recorded"
 fi
 
-do_reset
-
 exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-mod.tc b/tools/testing/selftests/ftrace/test.d/event/event-mod.tc
new file mode 100644
index 000000000000..175243cd9ab7
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/event/event-mod.tc
@@ -0,0 +1,191 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event tracing - enable/disable with module event
+# requires: set_event "Can enable module events via: :mod:":README
+# flags: instance
+
+rmmod trace-events-sample ||:
+if ! modprobe trace-events-sample ; then
+  echo "No trace-events sample module - please make CONFIG_SAMPLE_TRACE_EVENTS=m"
+  exit_unresolved;
+fi
+trap "rmmod trace-events-sample" EXIT
+
+# Set events for the module
+echo ":mod:trace-events-sample" > set_event
+
+test_all_enabled() {
+
+	# Check if more than one is enabled
+	grep -q sample-trace:foo_bar set_event
+	grep -q sample-trace:foo_bar_with_cond set_event
+	grep -q sample-trace:foo_bar_with_fn set_event
+
+	# All of them should be enabled. Check via the enable file
+	val=`cat events/sample-trace/enable`
+	if [ $val -ne 1 ]; then
+		exit_fail
+	fi
+}
+
+clear_events() {
+	echo > set_event
+	val=`cat events/enable`
+	if [ "$val" != "0" ]; then
+		exit_fail
+	fi
+	count=`cat set_event | wc -l`
+	if [ $count -ne 0 ]; then
+		exit_fail
+	fi
+}
+
+test_all_enabled
+
+echo clear all events
+echo 0 > events/enable
+
+echo Confirm the events are disabled
+val=`cat events/sample-trace/enable`
+if [ $val -ne 0 ]; then
+	exit_fail
+fi
+
+echo And the set_event file is empty
+
+cnt=`wc -l set_event`
+if [ $cnt -ne 0 ]; then
+	exit_fail
+fi
+
+echo now enable all events
+echo 1 > events/enable
+
+echo Confirm the events are enabled again
+val=`cat events/sample-trace/enable`
+if [ $val -ne 1 ]; then
+	exit_fail
+fi
+
+echo disable just the module events
+echo '!:mod:trace-events-sample' >> set_event
+
+echo Should have mix of events enabled
+val=`cat events/enable`
+if [ "$val" != "X" ]; then
+	exit_fail
+fi
+
+echo Confirm the module events are disabled
+val=`cat events/sample-trace/enable`
+if [ $val -ne 0 ]; then
+	exit_fail
+fi
+
+echo 0 > events/enable
+
+echo now enable the system events
+echo 'sample-trace:mod:trace-events-sample' > set_event
+
+test_all_enabled
+
+echo clear all events
+echo 0 > events/enable
+
+echo Confirm the events are disabled
+val=`cat events/sample-trace/enable`
+if [ $val -ne 0 ]; then
+	exit_fail
+fi
+
+echo Test enabling foo_bar only
+echo 'foo_bar:mod:trace-events-sample' > set_event
+
+grep -q sample-trace:foo_bar set_event
+
+echo make sure nothing is found besides foo_bar
+if grep -q -v sample-trace:foo_bar set_event ; then
+	exit_fail
+fi
+
+echo Append another using the system and event name
+echo 'sample-trace:foo_bar_with_cond:mod:trace-events-sample' >> set_event
+
+grep -q sample-trace:foo_bar set_event
+grep -q sample-trace:foo_bar_with_cond set_event
+
+count=`cat set_event | wc -l`
+
+if [ $count -ne 2 ]; then
+	exit_fail
+fi
+
+clear_events
+
+rmmod trace-events-sample
+
+echo ':mod:trace-events-sample' > set_event
+
+echo make sure that the module shows up, and '-' is converted to '_'
+grep -q '\*:\*:mod:trace_events_sample' set_event
+
+modprobe trace-events-sample
+
+test_all_enabled
+
+clear_events
+
+rmmod trace-events-sample
+
+echo Enable just the system events
+echo 'sample-trace:mod:trace-events-sample' > set_event
+grep -q 'sample-trace:mod:trace_events_sample' set_event
+
+modprobe trace-events-sample
+
+test_all_enabled
+
+clear_events
+
+rmmod trace-events-sample
+
+echo Enable event with just event name
+echo 'foo_bar:mod:trace-events-sample' > set_event
+grep -q 'foo_bar:mod:trace_events_sample' set_event
+
+echo Enable another event with both system and event name
+echo 'sample-trace:foo_bar_with_cond:mod:trace-events-sample' >> set_event
+grep -q 'sample-trace:foo_bar_with_cond:mod:trace_events_sample' set_event
+echo Make sure the other event was still there
+grep -q 'foo_bar:mod:trace_events_sample' set_event
+
+modprobe trace-events-sample
+
+echo There should be no :mod: cached events
+if grep -q ':mod:' set_event; then
+	exit_fail
+fi
+
+echo two events should be enabled
+count=`cat set_event | wc -l`
+if [ $count -ne 2 ]; then
+	exit_fail
+fi
+
+echo only two events should be enabled
+val=`cat events/sample-trace/enable`
+if [ "$val" != "X" ]; then
+	exit_fail
+fi
+
+val=`cat events/sample-trace/foo_bar/enable`
+if [ "$val" != "1" ]; then
+	exit_fail
+fi
+
+val=`cat events/sample-trace/foo_bar_with_cond/enable`
+if [ "$val" != "1" ]; then
+	exit_fail
+fi
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc
new file mode 100644
index 000000000000..9933ed24f901
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/event/event-no-pid.tc
@@ -0,0 +1,123 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event tracing - restricts events based on pid notrace filtering
+# requires: set_event events/sched set_event_pid set_event_notrace_pid
+# flags: instance
+
+do_reset() {
+    echo > set_event
+    echo > set_event_pid
+    echo > set_event_notrace_pid
+    echo 0 > options/event-fork
+    echo 0 > events/enable
+    clear_trace
+    echo 1 > tracing_on
+}
+
+fail() { #msg
+    cat trace
+    do_reset
+    echo $1
+    exit_fail
+}
+
+count_pid() {
+    pid=$@
+    cat trace | grep -v '^#' | sed -e 's/[^-]*-\([0-9]*\).*/\1/' | grep $pid | wc -l
+}
+
+count_no_pid() {
+    pid=$1
+    cat trace | grep -v '^#' | sed -e 's/[^-]*-\([0-9]*\).*/\1/' | grep -v $pid | wc -l
+}
+
+enable_system() {
+    system=$1
+
+    if [ -d events/$system ]; then
+	echo 1 > events/$system/enable
+    fi
+}
+
+enable_events() {
+    echo 0 > tracing_on
+    # Enable common groups of events, as all events can allow for
+    # events to be traced via scheduling that we don't care to test.
+    enable_system syscalls
+    enable_system rcu
+    enable_system block
+    enable_system exceptions
+    enable_system irq
+    enable_system net
+    enable_system power
+    enable_system signal
+    enable_system sock
+    enable_system timer
+    enable_system thermal
+    echo 1 > tracing_on
+}
+
+other_task() {
+    sleep .001 || usleep 1 || sleep 1
+}
+
+echo 0 > options/event-fork
+
+do_reset
+
+read mypid rest < /proc/self/stat
+
+echo $mypid > set_event_notrace_pid
+grep -q $mypid set_event_notrace_pid
+
+enable_events
+
+yield
+
+echo 0 > tracing_on
+
+cnt=`count_pid $mypid`
+if [ $cnt -ne 0 ]; then
+    fail "Filtered out task has events"
+fi
+
+cnt=`count_no_pid $mypid`
+if [ $cnt -eq 0 ]; then
+    fail "No other events were recorded"
+fi
+
+do_reset
+
+echo $mypid > set_event_notrace_pid
+echo 1 > options/event-fork
+
+enable_events
+
+yield &
+child=$!
+echo "child = $child"
+wait $child
+
+# Be sure some other events will happen for small systems (e.g. 1 core)
+other_task
+
+echo 0 > tracing_on
+
+cnt=`count_pid $mypid`
+if [ $cnt -ne 0 ]; then
+    fail "Filtered out task has events"
+fi
+
+cnt=`count_pid $child`
+if [ $cnt -ne 0 ]; then
+    fail "Child of filtered out taskhas events"
+fi
+
+cnt=`count_no_pid $mypid`
+if [ $cnt -eq 0 ]; then
+    fail "No other events were recorded"
+fi
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
new file mode 100644
index 000000000000..7f5f97dffdc3
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
@@ -0,0 +1,61 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event tracing - restricts events based on pid
+# requires: set_event set_event_pid events/sched
+# flags: instance
+
+do_reset() {
+    echo > set_event
+    echo > set_event_pid
+    echo 0 > options/event-fork
+    clear_trace
+}
+
+fail() { #msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+echo 0 > options/event-fork
+
+echo 1 > events/sched/sched_switch/enable
+
+yield
+
+count=`cat trace | grep sched_switch | wc -l`
+if [ $count -eq 0 ]; then
+    fail "sched_switch events are not recorded"
+fi
+
+do_reset
+
+read mypid rest < /proc/self/stat
+
+echo $mypid > set_event_pid
+grep -q $mypid set_event_pid
+echo 'sched:sched_switch' > set_event
+
+yield
+
+count=`cat trace | grep sched_switch | grep -v "pid=$mypid" | wc -l`
+if [ $count -ne 0 ]; then
+    fail "sched_switch events from other task are recorded"
+fi
+
+do_reset
+
+echo $mypid > set_event_pid
+echo 1 > options/event-fork
+echo 1 > events/sched/sched_switch/enable
+
+yield
+
+count=`cat trace | grep sched_switch | grep -v "pid=$mypid" | wc -l`
+if [ $count -eq 0 ]; then
+    fail "sched_switch events from other task are not recorded"
+fi
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index ced27ef0638f..65916bb55dfb 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -1,5 +1,8 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with subsystem level files
+# requires: set_event events/sched/enable
+# flags: instance
 
 do_reset() {
     echo > set_event
@@ -7,28 +10,39 @@ do_reset() {
 }
 
 fail() { #msg
-    do_reset
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
-yield() {
-    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
+# As reading trace can last forever, simply look for 3 different
+# events then exit out of reading the file. If there's not 3 different
+# events, then the test has failed.
+check_unique() {
+    cat trace | grep -v '^#' | awk '
+	BEGIN { cnt = 0; }
+	{
+	    for (i = 0; i < cnt; i++) {
+		if (event[i] == $5) {
+		    break;
+		}
+	    }
+	    if (i == cnt) {
+		event[cnt++] = $5;
+		if (cnt > 2) {
+		    exit;
+		}
+	    }
+	}
+	END {
+	    printf "%d", cnt;
+	}'
 }
 
-if [ ! -f set_event -o ! -d events/sched ]; then
-    echo "event tracing is not supported"
-    exit_unsupported
-fi
-
-reset_tracer
-do_reset
-
 echo 'sched:*' > set_event
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`check_unique`
 if [ $count -lt 3 ]; then
     fail "at least fork, exec and exit events should be recorded"
 fi
@@ -39,7 +53,7 @@ echo 1 > events/sched/enable
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`check_unique`
 if [ $count -lt 3 ]; then
     fail "at least fork, exec and exit events should be recorded"
 fi
@@ -50,11 +64,9 @@ echo 0 > events/sched/enable
 
 yield
 
-count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
+count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
 if [ $count -ne 0 ]; then
     fail "any of scheduler events should not be recorded"
 fi
 
-do_reset
-
 exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 0bb5df3c00d4..93c10ea42a68 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -1,5 +1,7 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with top level files
+# requires: available_events set_event events/enable
 
 do_reset() {
     echo > set_event
@@ -7,28 +9,17 @@ do_reset() {
 }
 
 fail() { #msg
-    do_reset
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
-yield() {
-    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
-}
-
-if [ ! -f available_events -o ! -f set_event -o ! -d events ]; then
-    echo "event tracing is not supported"
-    exit_unsupported
-fi
-
-reset_tracer
-do_reset
-
 echo '*:*' > set_event
 
 yield
 
-count=`cat trace | grep -v ^# | wc -l`
+echo 0 > tracing_on
+
+count=`head -n 128 trace | grep -v ^# | wc -l`
 if [ $count -eq 0 ]; then
     fail "none of events are recorded"
 fi
@@ -36,10 +27,12 @@ fi
 do_reset
 
 echo 1 > events/enable
+echo 1 > tracing_on
 
 yield
 
-count=`cat trace | grep -v ^# | wc -l`
+echo 0 > tracing_on
+count=`head -n 128 trace | grep -v ^# | wc -l`
 if [ $count -eq 0 ]; then
     fail "none of events are recorded"
 fi
@@ -55,6 +48,4 @@ if [ $count -ne 0 ]; then
     fail "any of events should not be recorded"
 fi
 
-do_reset
-
 exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/event/trace_printk.tc b/tools/testing/selftests/ftrace/test.d/event/trace_printk.tc
new file mode 100644
index 000000000000..b02550b42be9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/event/trace_printk.tc
@@ -0,0 +1,27 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test trace_printk from module
+
+rmmod trace-printk ||:
+if ! modprobe trace-printk ; then
+  echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=m"
+  exit_unresolved;
+fi
+
+echo "Waiting for irq work"
+sleep 1
+
+grep -q ": This .* trace_bputs" trace
+grep -q ": This .* trace_puts" trace
+grep -q ": This .* trace_bprintk" trace
+grep -q ": This .* trace_printk" trace
+
+grep -q ": (irq) .* trace_bputs" trace
+grep -q ": (irq) .* trace_puts" trace
+grep -q ": (irq) .* trace_bprintk" trace
+grep -q ": (irq) .* trace_printk" trace
+
+grep -q "This is a %s that will use trace_bprintk" printk_formats
+grep -q "(irq) This is a static string that will use trace_bputs" printk_formats
+
+rmmod trace-printk ||:
diff --git a/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
new file mode 100644
index 000000000000..cfa16aa1f39a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/filter/event-filter-function.tc
@@ -0,0 +1,109 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event filter function - test event filtering on functions
+# requires: set_event events/kmem/kmem_cache_free/filter
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+sample_events() {
+    echo 1 > events/kmem/kmem_cache_free/enable
+    echo 1 > tracing_on
+    ls > /dev/null
+    echo 0 > tracing_on
+    echo 0 > events/kmem/kmem_cache_free/enable
+}
+
+echo 0 > tracing_on
+echo 0 > events/enable
+
+# Clear functions caused by page cache; run sample_events twice
+sample_events
+sample_events
+
+echo "Get the most frequently calling function"
+echo > trace
+sample_events
+
+target_func=`cat trace | grep -o 'call_site=\([^+]*\)' | sed 's/call_site=//' | sort | uniq -c | sort | tail -n 1 | sed 's/^[ 0-9]*//'`
+if [ -z "$target_func" ]; then
+    exit_fail
+fi
+echo > trace
+
+echo "Test event filter function name"
+echo "call_site.function == $target_func" > events/kmem/kmem_cache_free/filter
+
+sample_events
+max_retry=10
+while [ `grep kmem_cache_free trace| wc -l` -eq 0 ]; do
+sample_events
+max_retry=$((max_retry - 1))
+if [ $max_retry -eq 0 ]; then
+	exit_fail
+fi
+done
+
+hitcnt=`grep kmem_cache_free trace| grep $target_func | wc -l`
+misscnt=`grep kmem_cache_free trace| grep -v $target_func | wc -l`
+
+if [ $hitcnt -eq 0 ]; then
+	exit_fail
+fi
+
+if [ $misscnt -gt 0 ]; then
+	exit_fail
+fi
+
+address=`grep " ${target_func}\$" /proc/kallsyms | cut -d' ' -f1`
+
+echo "Test event filter function address"
+echo "call_site.function == 0x$address" > events/kmem/kmem_cache_free/filter
+echo > trace
+sample_events
+max_retry=10
+while [ `grep kmem_cache_free trace| wc -l` -eq 0 ]; do
+sample_events
+max_retry=$((max_retry - 1))
+if [ $max_retry -eq 0 ]; then
+	exit_fail
+fi
+done
+
+hitcnt=`grep kmem_cache_free trace| grep $target_func | wc -l`
+misscnt=`grep kmem_cache_free trace| grep -v $target_func | wc -l`
+
+if [ $hitcnt -eq 0 ]; then
+	exit_fail
+fi
+
+if [ $misscnt -gt 0 ]; then
+	exit_fail
+fi
+
+# Check strings too
+if [ -f events/syscalls/sys_enter_openat/filter ]; then
+	DIRNAME=`basename $TMPDIR`
+	echo "filename.ustring ~ \"*$DIRNAME*\"" > events/syscalls/sys_enter_openat/filter
+	echo 1 > events/syscalls/sys_enter_openat/enable
+	echo 1 > tracing_on
+	ls /bin/sh
+	nocnt=`grep openat trace | wc -l`
+	ls $TMPDIR
+	echo 0 > tracing_on
+	hitcnt=`grep openat trace | wc -l`;
+	echo 0 > events/syscalls/sys_enter_openat/enable
+	if [ $nocnt -gt 0 ]; then
+		exit_fail
+	fi
+	if [ $hitcnt -eq 0 ]; then
+		exit_fail
+	fi
+fi
+
+reset_events_filter
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
index 15c2dba06ea2..cf3ea42b12b0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
@@ -1,33 +1,21 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function graph filters with stack tracer
+# requires: stack_trace set_ftrace_filter function_graph:tracer
 
 # Make sure that function graph filtering works, and is not
 # affected by other tracers enabled (like stack tracer)
 
-if ! grep -q function_graph available_tracers; then
-    echo "no function graph tracer configured"
-    exit_unsupported
-fi
-
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
-
 do_reset() {
-    reset_tracer
     if [ -e /proc/sys/kernel/stack_tracer_enabled ]; then
 	    echo 0 > /proc/sys/kernel/stack_tracer_enabled
     fi
-    enable_tracing
-    clear_trace
-    echo > set_ftrace_filter
 }
 
 fail() { # msg
     do_reset
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
 disable_tracing
@@ -43,12 +31,6 @@ fi
 
 echo function_graph > current_tracer
 
-if [ ! -f stack_trace ]; then
-    echo "Stack tracer not configured"
-    do_reset
-    exit_unsupported;
-fi
-
 echo "Now testing with stack tracer"
 
 echo 1 > /proc/sys/kernel/stack_tracer_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
index 0ab2189613ef..b3ccdaec2a61 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
@@ -1,23 +1,13 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function graph filters
+# requires: set_ftrace_filter function_graph:tracer
 
 # Make sure that function graph filtering works
 
-if ! grep -q function_graph available_tracers; then
-    echo "no function graph tracer configured"
-    exit_unsupported
-fi
-
-do_reset() {
-    reset_tracer
-    enable_tracing
-    clear_trace
-}
-
 fail() { # msg
-    do_reset
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
 disable_tracing
@@ -47,6 +37,4 @@ if [ $count -eq 0 ]; then
     fail "No schedule traces found?"
 fi
 
-do_reset
-
 exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi-filter.tc
new file mode 100644
index 000000000000..b6d6a312ead5
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi-filter.tc
@@ -0,0 +1,177 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function graph filters
+# requires: set_ftrace_filter function_graph:tracer
+
+# Make sure that function graph filtering works
+
+INSTANCE1="instances/test1_$$"
+INSTANCE2="instances/test2_$$"
+
+WD=`pwd`
+
+do_reset() {
+    cd $WD
+    if [ -d $INSTANCE1 ]; then
+	echo nop > $INSTANCE1/current_tracer
+	rmdir $INSTANCE1
+    fi
+    if [ -d $INSTANCE2 ]; then
+	echo nop > $INSTANCE2/current_tracer
+	rmdir $INSTANCE2
+    fi
+}
+
+mkdir $INSTANCE1
+if ! grep -q function_graph $INSTANCE1/available_tracers; then
+    echo "function_graph not allowed with instances"
+    rmdir $INSTANCE1
+    exit_unsupported
+fi
+
+mkdir $INSTANCE2
+
+fail() { # msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+disable_tracing
+clear_trace
+
+function_count() {
+    search=$1
+    vsearch=$2
+
+    if [ -z "$search" ]; then
+	cat enabled_functions | wc -l
+    elif [ -z "$vsearch" ]; then
+	grep $search enabled_functions | wc -l
+    else
+	grep $search enabled_functions | grep $vsearch| wc -l
+    fi
+}
+
+set_fgraph() {
+    instance=$1
+    filter="$2"
+    notrace="$3"
+
+    echo "$filter" > $instance/set_ftrace_filter
+    echo "$notrace" > $instance/set_ftrace_notrace
+    echo function_graph > $instance/current_tracer
+}
+
+check_functions() {
+    orig_cnt=$1
+    test=$2
+
+    cnt=`function_count $test`
+    if [ $cnt -gt $orig_cnt ]; then
+	fail
+    fi
+}
+
+check_cnt() {
+    orig_cnt=$1
+    search=$2
+    vsearch=$3
+
+    cnt=`function_count $search $vsearch`
+    if [ $cnt -gt $orig_cnt ]; then
+	fail
+    fi
+}
+
+reset_graph() {
+    instance=$1
+    echo nop > $instance/current_tracer
+}
+
+# get any functions that were enabled before the test
+total_cnt=`function_count`
+sched_cnt=`function_count sched`
+lock_cnt=`function_count lock`
+time_cnt=`function_count time`
+clock_cnt=`function_count clock`
+locks_clock_cnt=`function_count locks clock`
+clock_locks_cnt=`function_count clock locks`
+
+# Trace functions with "sched" but not "time"
+set_fgraph $INSTANCE1 '*sched*' '*time*'
+
+# Make sure "time" isn't listed
+check_functions $time_cnt 'time'
+instance1_cnt=`function_count`
+
+# Trace functions with "lock" but not "clock"
+set_fgraph $INSTANCE2 '*lock*' '*clock*'
+instance1_2_cnt=`function_count`
+
+# Turn off the first instance
+reset_graph $INSTANCE1
+
+# The second instance doesn't trace "clock" functions
+check_functions $clock_cnt 'clock'
+instance2_cnt=`function_count`
+
+# Start from a clean slate
+reset_graph $INSTANCE2
+check_functions $total_cnt
+
+# Trace functions with "lock" but not "clock"
+set_fgraph $INSTANCE2 '*lock*' '*clock*'
+
+# This should match the last time instance 2 was by itself
+cnt=`function_count`
+if [ $instance2_cnt -ne $cnt ]; then
+    fail
+fi
+
+# And it should not be tracing "clock" functions
+check_functions $clock_cnt 'clock'
+
+# Trace functions with "sched" but not "time"
+set_fgraph $INSTANCE1 '*sched*' '*time*'
+
+# This should match the last time both instances were enabled
+cnt=`function_count`
+if [ $instance1_2_cnt -ne $cnt ]; then
+    fail
+fi
+
+# Turn off the second instance
+reset_graph $INSTANCE2
+
+# This should match the last time instance 1 was by itself
+cnt=`function_count`
+if [ $instance1_cnt -ne $cnt ]; then
+    fail
+fi
+
+# And it should not be tracing "time" functions
+check_functions $time_cnt 'time'
+
+# Start from a clean slate
+reset_graph $INSTANCE1
+check_functions $total_cnt
+
+# Enable all functions but those that have "locks"
+set_fgraph $INSTANCE1 '' '*locks*'
+
+# Enable all functions but those that have "clock"
+set_fgraph $INSTANCE2 '' '*clock*'
+
+# If a function has "locks" it should not have "clock"
+check_cnt $locks_clock_cnt locks clock
+
+# If a function has "clock" it should not have "locks"
+check_cnt $clock_locks_cnt clock locks
+
+reset_graph $INSTANCE1
+reset_graph $INSTANCE2
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi.tc
new file mode 100644
index 000000000000..ff88f97e41fb
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-multi.tc
@@ -0,0 +1,103 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function graph filters
+# requires: set_ftrace_filter function_graph:tracer
+
+# Make sure that function graph filtering works
+
+INSTANCE1="instances/test1_$$"
+INSTANCE2="instances/test2_$$"
+INSTANCE3="instances/test3_$$"
+
+WD=`pwd`
+
+do_reset() {
+    cd $WD
+    if [ -d $INSTANCE1 ]; then
+	echo nop > $INSTANCE1/current_tracer
+	rmdir $INSTANCE1
+    fi
+    if [ -d $INSTANCE2 ]; then
+	echo nop > $INSTANCE2/current_tracer
+	rmdir $INSTANCE2
+    fi
+    if [ -d $INSTANCE3 ]; then
+	echo nop > $INSTANCE3/current_tracer
+	rmdir $INSTANCE3
+    fi
+}
+
+mkdir $INSTANCE1
+if ! grep -q function_graph $INSTANCE1/available_tracers; then
+    echo "function_graph not allowed with instances"
+    rmdir $INSTANCE1
+    exit_unsupported
+fi
+
+mkdir $INSTANCE2
+mkdir $INSTANCE3
+
+fail() { # msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+disable_tracing
+clear_trace
+
+do_test() {
+    REGEX=$1
+    TEST=$2
+
+    # filter something, schedule is always good
+    if ! echo "$REGEX" > set_ftrace_filter; then
+	fail "can not enable filter $REGEX"
+    fi
+
+    echo > trace
+    echo function_graph > current_tracer
+    enable_tracing
+    sleep 1
+    # search for functions (has "{" or ";" on the line)
+    echo 0 > tracing_on
+    count=`cat trace | grep -v '^#' | grep -e '{' -e ';' | grep -v "$TEST" | wc -l`
+    echo 1 > tracing_on
+    if [ $count -ne 0 ]; then
+	fail "Graph filtering not working by itself against $TEST?"
+    fi
+
+    # Make sure we did find something
+    echo 0 > tracing_on
+    count=`cat trace | grep -v '^#' | grep -e '{' -e ';' | grep "$TEST" | wc -l`
+    echo 1 > tracing_on
+    if [ $count -eq 0 ]; then
+	fail "No traces found with $TEST?"
+    fi
+}
+
+do_test '*sched*' 'sched'
+cd $INSTANCE1
+do_test '*lock*' 'lock'
+cd $WD
+cd $INSTANCE2
+do_test '*rcu*' 'rcu'
+cd $WD
+cd $INSTANCE3
+echo function_graph > current_tracer
+
+sleep 1
+count=`cat trace | grep -v '^#' | grep -e '{' -e ';' | grep "$TEST" | wc -l`
+if [ $count -eq 0 ]; then
+    fail "No traces found with all tracing?"
+fi
+
+cd $WD
+echo nop > current_tracer
+echo nop > $INSTANCE1/current_tracer
+echo nop > $INSTANCE2/current_tracer
+echo nop > $INSTANCE3/current_tracer
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-profiler.tc
new file mode 100644
index 000000000000..ffff8646733c
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-profiler.tc
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function profiler with function graph tracing
+# requires: function_profile_enabled set_ftrace_filter function_graph:tracer
+
+# The function graph tracer can now be run along side of the function
+# profiler. But there was a bug that caused the combination of the two
+# to crash. It also required the function graph tracer to be started
+# first.
+#
+# This test triggers that bug
+#
+# We need both function_graph and profiling to run this test
+
+fail() { # mesg
+    echo $1
+    exit_fail
+}
+
+echo "Enabling function graph tracer:"
+echo function_graph > current_tracer
+echo "enable profiler"
+
+# Older kernels do not allow function_profile to be enabled with
+# function graph tracer. If the below fails, mark it as unsupported
+echo 1 > function_profile_enabled || exit_unsupported
+
+# Let it run for a bit to make sure nothing explodes
+sleep 1
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-retval.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-retval.tc
new file mode 100644
index 000000000000..4307d4eef417
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-retval.tc
@@ -0,0 +1,44 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function graph print function return value
+# requires: options/funcgraph-retval options/funcgraph-retval-hex function_graph:tracer
+
+# Make sure that funcgraph-retval works
+
+fail() { # msg
+    echo $1
+    exit_fail
+}
+
+disable_tracing
+clear_trace
+
+# get self PID, can not use $$, because it is PPID
+read PID _ < /proc/self/stat
+
+[ -f set_ftrace_filter ] && echo proc_reg_write > set_ftrace_filter
+[ -f set_ftrace_pid ] && echo ${PID} > set_ftrace_pid
+echo function_graph > current_tracer
+echo 1 > options/funcgraph-retval
+
+set +e
+enable_tracing
+echo > /proc/interrupts
+disable_tracing
+set -e
+
+: "Test printing the error code in signed decimal format"
+echo 0 > options/funcgraph-retval-hex
+count=`cat trace | grep 'proc_reg_write' | grep -e '=-5 ' -e '= -5 '  | wc -l`
+if [ $count -eq 0 ]; then
+    fail "Return value can not be printed in signed decimal format"
+fi
+
+: "Test printing the error code in hexadecimal format"
+echo 1 > options/funcgraph-retval-hex
+count=`cat trace | grep 'proc_reg_write' | grep 'fffffffb' | wc -l`
+if [ $count -eq 0 ]; then
+    fail "Return value can not be printed in hexadecimal format"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
new file mode 100644
index 000000000000..ed81eaf2afd6
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
@@ -0,0 +1,58 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function glob filters
+# requires: set_ftrace_filter function:tracer
+
+# Make sure that function glob matching filter works.
+
+disable_tracing
+clear_trace
+
+ftrace_filter_check() { # glob grep
+  echo "$1" > set_ftrace_filter
+  cut -f1 -d" " set_ftrace_filter > $TMPDIR/actual
+  cut -f1 -d" " available_filter_functions | grep "$2" > $TMPDIR/expected
+  DIFF=`diff $TMPDIR/actual $TMPDIR/expected`
+  test -z "$DIFF"
+}
+
+# filter by *, front match
+ftrace_filter_check '*schedule' '^.*schedule$'
+
+# filter by *, middle match
+ftrace_filter_check '*schedule*' '^.*schedule.*$'
+
+# filter by *, end match
+ftrace_filter_check 'schedule*' '^schedule.*$'
+
+# filter by *mid*end
+ftrace_filter_check '*pin*lock' '.*pin.*lock$'
+
+# filter by start*mid*
+ftrace_filter_check 'mutex*unl*' '^mutex.*unl.*'
+
+# Advanced full-glob matching feature is recently supported.
+# Skip the tests if we are sure the kernel does not support it.
+if grep -q 'accepts: .* glob-matching-pattern' README ; then
+
+# filter by *, both side match
+ftrace_filter_check 'sch*ule' '^sch.*ule$'
+
+# filter by char class.
+ftrace_filter_check '[Ss]y[Ss]_*' '^[Ss]y[Ss]_.*$'
+
+# filter by ?, schedule is always good
+if ! echo "sch?dule" > set_ftrace_filter; then
+    # test for powerpc 64
+    if ! echo ".sch?dule" > set_ftrace_filter; then
+	fail "can not enable schedule filter"
+    fi
+    cat set_ftrace_filter | grep '^.schedule$'
+else
+    cat set_ftrace_filter | grep '^schedule$'
+fi
+
+fi
+
+echo > set_ftrace_filter
+enable_tracing
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
new file mode 100644
index 000000000000..80541964b927
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-notrace-pid.tc
@@ -0,0 +1,94 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function pid notrace filters
+# requires: set_ftrace_notrace_pid set_ftrace_filter function:tracer
+# flags: instance
+
+# Make sure that function pid matching filter with notrace works.
+
+do_function_fork=1
+
+if [ ! -f options/function-fork ]; then
+    do_function_fork=0
+    echo "no option for function-fork found. Option will not be tested."
+fi
+
+read PID _ < /proc/self/stat
+
+if [ $do_function_fork -eq 1 ]; then
+    # default value of function-fork option
+    orig_value=`grep function-fork trace_options`
+fi
+
+do_reset() {
+    if [ $do_function_fork -eq 0 ]; then
+	return
+    fi
+
+    echo > set_ftrace_notrace_pid
+    echo $orig_value > trace_options
+}
+
+fail() { # msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+do_test() {
+    disable_tracing
+
+    echo do_execve* > set_ftrace_filter
+    echo $FUNCTION_FORK >> set_ftrace_filter
+
+    echo $PID > set_ftrace_notrace_pid
+    echo function > current_tracer
+
+    if [ $do_function_fork -eq 1 ]; then
+	# don't allow children to be traced
+	echo nofunction-fork > trace_options
+    fi
+
+    enable_tracing
+    yield
+
+    count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+    count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+    # count_pid should be 0
+    if [ $count_pid -ne 0 -o $count_other -eq 0 ]; then
+	fail "PID filtering not working? traced task = $count_pid; other tasks = $count_other "
+    fi
+
+    disable_tracing
+    clear_trace
+
+    if [ $do_function_fork -eq 0 ]; then
+	return
+    fi
+
+    # allow children to be traced
+    echo function-fork > trace_options
+
+    # With pid in both set_ftrace_pid and set_ftrace_notrace_pid
+    # there should not be any tasks traced.
+
+    echo $PID > set_ftrace_pid
+
+    enable_tracing
+    yield
+
+    count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+    count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+    # both should be zero
+    if [ $count_pid -ne 0 -o $count_other -ne 0 ]; then
+	fail "PID filtering not following fork? traced task = $count_pid; other tasks = $count_other "
+    fi
+}
+
+do_test
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
new file mode 100644
index 000000000000..8dcce001881d
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
@@ -0,0 +1,107 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function pid filters
+# requires: set_ftrace_pid set_ftrace_filter function:tracer
+# flags: instance
+
+# Make sure that function pid matching filter works.
+# Also test it on an instance directory
+
+do_function_fork=1
+do_funcgraph_proc=1
+
+if [ ! -f options/function-fork ]; then
+    do_function_fork=0
+    echo "no option for function-fork found. Option will not be tested."
+fi
+
+if [ ! -f options/funcgraph-proc ]; then
+    do_funcgraph_proc=0
+    echo "no option for function-fork found. Option will not be tested."
+fi
+
+read PID _ < /proc/self/stat
+
+if [ $do_function_fork -eq 1 ]; then
+    # default value of function-fork option
+    orig_value=`grep function-fork trace_options`
+fi
+
+if [ $do_funcgraph_proc -eq 1 ]; then
+    orig_value2=`cat options/funcgraph-proc`
+    echo 1 > options/funcgraph-proc
+fi
+
+do_reset() {
+    if [ $do_function_fork -eq 1 ]; then
+	echo $orig_value > trace_options
+    fi
+
+    if [ $do_funcgraph_proc -eq 1 ]; then
+	echo $orig_value2 > options/funcgraph-proc
+    fi
+}
+
+fail() { # msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+do_test() {
+    TRACER=$1
+
+    disable_tracing
+
+    echo do_execve* > set_ftrace_filter
+    echo $FUNCTION_FORK >> set_ftrace_filter
+
+    echo $PID > set_ftrace_pid
+    echo $TRACER > current_tracer
+
+    if [ $do_function_fork -eq 1 ]; then
+	# don't allow children to be traced
+	echo nofunction-fork > trace_options
+    fi
+
+    enable_tracing
+    yield
+
+    count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+    count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+    # count_other should be 0
+    if [ $count_pid -eq 0 -o $count_other -ne 0 ]; then
+	fail "PID filtering not working?"
+    fi
+
+    disable_tracing
+    clear_trace
+
+    if [ $do_function_fork -eq 0 ]; then
+	return
+    fi
+
+    # allow children to be traced
+    echo function-fork > trace_options
+
+    enable_tracing
+    yield
+
+    count_pid=`cat trace | grep -v ^# | grep $PID | wc -l`
+    count_other=`cat trace | grep -v ^# | grep -v $PID | wc -l`
+
+    # count_other should NOT be 0
+    if [ $count_pid -eq 0 -o $count_other -eq 0 ]; then
+	fail "PID filtering not following fork?"
+    fi
+}
+
+do_test function
+if grep -s function_graph available_tracers; then
+    do_test function_graph
+fi
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
new file mode 100644
index 000000000000..191d116b7883
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-stacktrace.tc
@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - stacktrace filter command
+# requires: set_ftrace_filter
+# flags: instance
+
+echo $FUNCTION_FORK:stacktrace >> set_ftrace_filter
+
+grep -q "$FUNCTION_FORK:stacktrace:unlimited" set_ftrace_filter
+
+(echo "forked"; sleep 1)
+
+grep -q "<stack trace>" trace
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
new file mode 100644
index 000000000000..0c6cf7725110
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_cpumask.tc
@@ -0,0 +1,43 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function trace with cpumask
+# requires: function:tracer
+
+if ! which nproc ; then
+  nproc() {
+    ls -d /sys/devices/system/cpu/cpu[0-9]* | wc -l
+  }
+fi
+
+NP=`nproc`
+
+if [ $NP -eq 1 ] ;then
+  echo "We can not test cpumask on UP environment"
+  exit_unresolved
+fi
+
+ORIG_CPUMASK=`cat tracing_cpumask`
+
+do_reset() {
+  echo $ORIG_CPUMASK > tracing_cpumask
+}
+
+echo 0 > tracing_on
+echo > trace
+: "Bitmask only record on CPU1"
+echo 2 > tracing_cpumask
+MASK=0x`cat tracing_cpumask`
+test `printf "%d" $MASK` -eq 2 || do_reset
+
+echo function > current_tracer
+echo 1 > tracing_on
+(echo "forked")
+echo 0 > tracing_on
+
+: "Check CPU1 events are recorded"
+grep -q -e "\[001\]" trace || do_reset
+
+: "There should be No other cpu events"
+! grep -qv -e "\[001\]" -e "^#" trace || do_reset
+
+do_reset
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
new file mode 100644
index 000000000000..2ad7d4b501cc
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -0,0 +1,123 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - test for function event triggers
+# flags: instance
+#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
+# Ftrace allows to add triggers to functions, such as enabling or disabling
+# tracing, enabling or disabling trace events, or recording a stack trace
+# within the ring buffer.
+#
+# This test is designed to test event triggers
+
+do_reset() {
+    reset_ftrace_filter
+    reset_tracer
+    disable_events
+    clear_trace
+    enable_tracing
+}
+
+fail() { # mesg
+    echo $1
+    exit_fail
+}
+
+SLEEP_TIME=".1"
+
+echo "Testing function probes with events:"
+
+EVENT="sched:sched_switch"
+EVENT_ENABLE="events/sched/sched_switch/enable"
+
+cnt_trace() {
+    grep -v '^#' trace | wc -l
+}
+
+test_event_enabled() {
+    val=$1
+    check_times=10		# wait for 10 * SLEEP_TIME at most
+
+    while [ $check_times -ne 0 ]; do
+	e=`cat $EVENT_ENABLE`
+	if [ "$e" = $val ]; then
+	    return 0
+	fi
+	sleep $SLEEP_TIME
+	check_times=$((check_times - 1))
+    done
+
+    fail "Expected $val but found $e"
+}
+
+run_enable_disable() {
+    enable=$1			# enable
+    Enable=$2			# Enable
+    check_disable=$3		# 0
+    check_enable_star=$4	# 1*
+    check_disable_star=$5	# 0*
+
+    cnt=`cnt_trace`
+    if [ $cnt -ne 0 ]; then
+	fail "Found junk in trace file"
+    fi
+
+    echo "$Enable event all the time"
+
+    echo $check_disable > $EVENT_ENABLE
+    sleep $SLEEP_TIME
+
+    test_event_enabled $check_disable
+
+    echo "schedule:${enable}_event:$EVENT" > set_ftrace_filter
+    if [ -d ../../instances ]; then # Check instances
+	cur=`cat set_ftrace_filter`
+	top=`cat ../../set_ftrace_filter`
+	if [ "$cur" = "$top" ]; then
+	    echo "This kernel is too old to support per instance filter"
+	    reset_ftrace_filter
+	    exit_unsupported
+	fi
+    fi
+
+    echo " make sure it works 5 times"
+
+    for i in `seq 5`; do
+	sleep $SLEEP_TIME
+	echo "  test $i"
+	test_event_enabled $check_enable_star
+
+	echo $check_disable > $EVENT_ENABLE
+    done
+    sleep $SLEEP_TIME
+    echo " make sure it still works"
+    test_event_enabled $check_enable_star
+
+    reset_ftrace_filter
+
+    echo " make sure it only works 3 times"
+
+    echo $check_disable > $EVENT_ENABLE
+    sleep $SLEEP_TIME
+
+    echo "schedule:${enable}_event:$EVENT:3" > set_ftrace_filter
+
+    for i in `seq 3`; do
+	sleep $SLEEP_TIME
+	echo "  test $i"
+	test_event_enabled $check_enable_star
+
+	echo $check_disable > $EVENT_ENABLE
+    done
+
+    sleep $SLEEP_TIME
+    echo " make sure it stop working"
+    test_event_enabled $check_disable_star
+
+    do_reset
+}
+
+run_enable_disable enable Enable 0 "1*" "0*"
+run_enable_disable disable Disable 1 "0*" "1*"
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
new file mode 100644
index 000000000000..ccfbfde3d942
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_hotplug.tc
@@ -0,0 +1,42 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# description: ftrace - function trace across cpu hotplug
+# requires: function:tracer
+
+if ! which nproc ; then
+  nproc() {
+    ls -d /sys/devices/system/cpu/cpu[0-9]* | wc -l
+  }
+fi
+
+NP=`nproc`
+
+if [ $NP -eq 1 ] ;then
+  echo "We cannot test cpu hotplug in UP environment"
+  exit_unresolved
+fi
+
+# Find online cpu
+for i in /sys/devices/system/cpu/cpu[1-9]*; do
+	if [ -f $i/online ] && [ "$(cat $i/online)" = "1" ]; then
+		cpu=$i
+		break
+	fi
+done
+
+if [ -z "$cpu" ]; then
+	echo "We cannot test cpu hotplug with a single cpu online"
+	exit_unresolved
+fi
+
+echo 0 > tracing_on
+echo > trace
+
+: "Set $(basename $cpu) offline/online with function tracer enabled"
+echo function > current_tracer
+echo 1 > tracing_on
+(echo 0 > $cpu/online)
+(echo "forked"; sleep 1)
+(echo 1 > $cpu/online)
+echo 0 > tracing_on
+echo nop > current_tracer
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
new file mode 100644
index 000000000000..37c8feb9078b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_mod_trace.tc
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function trace on module
+# requires: set_ftrace_filter
+
+: "mod: allows to filter a non exist function"
+echo 'non_exist_func:mod:non_exist_module' > set_ftrace_filter
+grep -q "non_exist_func" set_ftrace_filter
+
+: "mod: on exist module"
+echo '*:mod:trace_printk' > set_ftrace_filter
+if ! modprobe trace-printk ; then
+  echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=
+m"
+  exit_unresolved;
+fi
+
+: "Wildcard should be resolved after loading module"
+grep -q "trace_printk_irq_work" set_ftrace_filter
+
+: "After removing the filter becomes empty"
+rmmod trace_printk
+test `cat set_ftrace_filter | wc -l` -eq 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc
new file mode 100644
index 000000000000..4daeffb02fd8
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profile_stat.tc
@@ -0,0 +1,21 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - function profiling
+# requires: function_profile_enabled
+
+: "Enable function profile"
+echo 1 > function_profile_enabled
+
+: "Profile must be updated"
+cp trace_stat/function0 $TMPDIR/
+( echo "forked"; sleep 1 )
+: "diff returns 0 if there is no difference"
+! diff trace_stat/function0 $TMPDIR/function0
+
+echo 0 > function_profile_enabled
+
+: "Profile must NOT be updated"
+cp trace_stat/function0 $TMPDIR/
+( echo "forked"; sleep 1 )
+: "diff returns 0 if there is no difference"
+diff trace_stat/function0 $TMPDIR/function0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 7808336d6f50..1dbd766c0cd2 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -1,5 +1,7 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function profiler with function tracing
+# requires: function_profile_enabled set_ftrace_filter function_graph:tracer
 
 # There was a bug after a rewrite of the ftrace infrastructure that
 # caused the function_profiler not to be able to run with the function
@@ -12,26 +14,10 @@
 # This test triggers those bugs on those kernels.
 #
 # We need function_graph and profiling to to run this test
-if ! grep -q function_graph available_tracers; then
-    echo "no function graph tracer configured"
-    exit_unsupported;
-fi
-
-if [ ! -f set_ftrace_filter ]; then
-    echo "set_ftrace_filter not found? Is dynamic ftrace not set?"
-    exit_unsupported
-fi
-
-if [ ! -f function_profile_enabled ]; then
-    echo "function_profile_enabled not found, function profiling enabled?"
-    exit_unsupported
-fi
 
 fail() { # mesg
-    reset_tracer
-    echo > set_ftrace_filter
     echo $1
-    exit $FAIL
+    exit_fail
 }
 
 echo "Testing function tracer with profiler:"
@@ -75,6 +61,4 @@ if ! grep -v -e '^#' -e 'schedule' trace > /dev/null; then
 	fail "no other functions besides schedule was found"
 fi
 
-reset_tracer
-
 exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
new file mode 100644
index 000000000000..263f6b798c85
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
@@ -0,0 +1,161 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - test reading of set_ftrace_filter
+#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
+# The set_ftrace_filter file of ftrace is used to list functions as well as
+# triggers (probes) attached to functions. The code to read this file is not
+# straight forward and has had various bugs in the past. This test is designed
+# to add functions and triggers to that file in various ways and read that
+# file in various ways (cat vs dd).
+#
+
+fail() { # mesg
+    echo $1
+    exit_fail
+}
+
+FILTER=set_ftrace_filter
+FUNC1="schedule"
+if grep '^sched_tick\b' available_filter_functions; then
+    FUNC2="sched_tick"
+elif grep '^scheduler_tick\b' available_filter_functions; then
+    FUNC2="scheduler_tick"
+else
+    exit_unresolved
+fi
+
+
+ALL_FUNCS="#### all functions enabled ####"
+
+test_func() {
+    if ! echo "$1" | grep -q "^$2\$"; then
+	return 0
+    fi
+    echo "$1" | grep -v "^$2\$"
+    return 1
+}
+
+check_set_ftrace_filter() {
+    cat=`cat $FILTER`
+    dd1=`dd if=$FILTER bs=1 | grep -v -e 'records in' -e 'records out' -e 'bytes copied'`
+    dd100=`dd if=$FILTER bs=100 | grep -v -e 'records in' -e 'records out' -e 'bytes copied'`
+
+    echo "Testing '$@'"
+
+    while [ $# -gt 0 ]; do
+	echo "test $1"
+	if cat=`test_func "$cat" "$1"`; then
+	    return 0
+	fi
+	if dd1=`test_func "$dd1" "$1"`; then
+	    return 0
+	fi
+	if dd100=`test_func "$dd100" "$1"`; then
+	    return 0
+	fi
+	shift
+    done
+
+    if [ -n "$cat" ]; then
+	return 0
+    fi
+    if [ -n "$dd1" ]; then
+	return 0
+    fi
+    if [ -n "$dd100" ]; then
+	return 0
+    fi
+    return 1;
+}
+
+if check_set_ftrace_filter "$ALL_FUNCS"; then
+    fail "Expected only $ALL_FUNCS"
+fi
+
+echo "$FUNC1:traceoff" > set_ftrace_filter
+if check_set_ftrace_filter "$ALL_FUNCS" "$FUNC1:traceoff:unlimited"; then
+    fail "Expected $ALL_FUNCS and $FUNC1:traceoff:unlimited"
+fi
+
+echo "$FUNC1" > set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" "$FUNC1:traceoff:unlimited"; then
+    fail "Expected $FUNC1 and $FUNC1:traceoff:unlimited"
+fi
+
+echo "$FUNC2" >> set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" "$FUNC2" "$FUNC1:traceoff:unlimited"; then
+    fail "Expected $FUNC1 $FUNC2 and $FUNC1:traceoff:unlimited"
+fi
+
+echo "$FUNC2:traceoff" >> set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" "$FUNC2" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then
+    fail "Expected $FUNC1 $FUNC2 $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited"
+fi
+
+echo "$FUNC1" > set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then
+    fail "Expected $FUNC1 $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited"
+fi
+
+echo > set_ftrace_filter
+if check_set_ftrace_filter "$ALL_FUNCS" "$FUNC1:traceoff:unlimited" "$FUNC2:traceoff:unlimited"; then
+    fail "Expected $ALL_FUNCS $FUNC1:traceoff:unlimited and $FUNC2:traceoff:unlimited"
+fi
+
+reset_ftrace_filter
+
+if check_set_ftrace_filter "$ALL_FUNCS"; then
+    fail "Expected $ALL_FUNCS"
+fi
+
+echo "$FUNC1" > set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" ; then
+    fail "Expected $FUNC1"
+fi
+
+echo "$FUNC2" >> set_ftrace_filter
+if check_set_ftrace_filter "$FUNC1" "$FUNC2" ; then
+    fail "Expected $FUNC1 and $FUNC2"
+fi
+
+test_actual() { # Compares $TMPDIR/expected with set_ftrace_filter
+    cat set_ftrace_filter | grep -v '#' | cut -d' ' -f1 | cut -d':' -f1 | sort -u > $TMPDIR/actual
+    DIFF=`diff $TMPDIR/actual $TMPDIR/expected`
+    test -z "$DIFF"
+}
+
+# Set traceoff trigger for all fuctions with "lock" in their name
+cat available_filter_functions | cut -d' ' -f1 |  grep 'lock' | sort -u > $TMPDIR/expected
+echo '*lock*:traceoff' > set_ftrace_filter
+test_actual
+
+# now remove all with 'try' in it, and end with lock
+grep -v 'try.*lock$' $TMPDIR/expected > $TMPDIR/expected2
+mv $TMPDIR/expected2 $TMPDIR/expected
+echo '!*try*lock:traceoff' >> set_ftrace_filter
+test_actual
+
+# remove all that start with "m" and end with "lock"
+grep -v '^m.*lock$' $TMPDIR/expected > $TMPDIR/expected2
+mv $TMPDIR/expected2 $TMPDIR/expected
+echo '!m*lock:traceoff' >> set_ftrace_filter
+test_actual
+
+# remove all that start with "c" and have "unlock"
+grep -v '^c.*unlock' $TMPDIR/expected > $TMPDIR/expected2
+mv $TMPDIR/expected2 $TMPDIR/expected
+echo '!c*unlock*:traceoff' >> set_ftrace_filter
+test_actual
+
+# clear all the rest
+> $TMPDIR/expected
+echo '!*:traceoff' >> set_ftrace_filter
+test_actual
+
+rm $TMPDIR/expected
+rm $TMPDIR/actual
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
new file mode 100644
index 000000000000..61264e422699
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_stack_tracer.tc
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - Max stack tracer
+# requires: stack_trace stack_trace_filter
+# Test the basic function of max-stack usage tracing
+
+echo > stack_trace_filter
+echo 0 > stack_max_size
+echo 1 > /proc/sys/kernel/stack_tracer_enabled
+
+: "Fork and wait for the first entry become !lock"
+timeout=10
+while [ $timeout -ne 0 ]; do
+  ( echo "forked" )
+  FL=`grep " 0)" stack_trace`
+  echo $FL | grep -q "lock" || break;
+  timeout=$((timeout - 1))
+done
+echo 0 > /proc/sys/kernel/stack_tracer_enabled
+
+echo '*lock*' > stack_trace_filter
+test `cat stack_trace_filter | wc -l` -eq `grep lock stack_trace_filter | wc -l`
+
+echo 0 > stack_max_size
+echo 1 > /proc/sys/kernel/stack_tracer_enabled
+
+: "Fork and always the first entry including lock"
+timeout=10
+while [ $timeout -ne 0 ]; do
+  ( echo "forked" )
+  FL=`grep " 0)" stack_trace`
+  echo $FL | grep -q "lock"
+  timeout=$((timeout - 1))
+done
+echo 0 > /proc/sys/kernel/stack_tracer_enabled
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
new file mode 100644
index 000000000000..aee22289536b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -0,0 +1,172 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - test for function traceon/off triggers
+# flags: instance
+#
+# The triggers are set within the set_ftrace_filter file
+# requires: set_ftrace_filter
+#
+# Ftrace allows to add triggers to functions, such as enabling or disabling
+# tracing, enabling or disabling trace events, or recording a stack trace
+# within the ring buffer.
+#
+# This test is designed to test enabling and disabling tracing triggers
+#
+
+fail() { # mesg
+    echo $1
+    exit_fail
+}
+
+SLEEP_TIME=".1"
+
+echo "Testing function probes with enabling disabling tracing:"
+
+cnt_trace() {
+    grep -v '^#' trace | wc -l
+}
+
+echo '** DISABLE TRACING'
+disable_tracing
+clear_trace
+
+cnt=`cnt_trace`
+if [ $cnt -ne 0 ]; then
+    fail "Found junk in trace"
+fi
+
+
+echo '** ENABLE EVENTS'
+
+echo 1 > events/sched/enable
+
+echo '** ENABLE TRACING'
+enable_tracing
+
+cnt=`cnt_trace`
+if [ $cnt -eq 0 ]; then
+   fail "Nothing found in trace"
+fi
+
+# powerpc uses .schedule
+func="schedule"
+available_file=available_filter_functions
+if [ -d ../../instances -a -f ../../available_filter_functions ]; then
+   available_file=../../available_filter_functions
+fi
+x=`grep '^\.schedule$' available_filter_functions | wc -l`
+if [ "$x" -eq 1 ]; then
+   func=".schedule"
+fi
+
+echo '** SET TRACEOFF'
+
+echo "$func:traceoff" > set_ftrace_filter
+if [ -d ../../instances ]; then # Check instances
+    cur=`cat set_ftrace_filter`
+    top=`cat ../../set_ftrace_filter`
+    if [ "$cur" = "$top" ]; then
+	echo "This kernel is too old to support per instance filter"
+	reset_ftrace_filter
+	exit_unsupported
+    fi
+fi
+
+cnt=`grep schedule set_ftrace_filter | wc -l`
+if [ $cnt -ne 1 ]; then
+   fail "Did not find traceoff trigger"
+fi
+
+cnt=`cnt_trace`
+sleep $SLEEP_TIME
+cnt2=`cnt_trace`
+
+if [ $cnt -ne $cnt2 ]; then
+   fail "Tracing is not stopped"
+fi
+
+on=`cat tracing_on`
+if [ $on != "0" ]; then
+    fail "Tracing is not off"
+fi
+
+csum1=`md5sum trace`
+sleep $SLEEP_TIME
+csum2=`md5sum trace`
+
+if [ "$csum1" != "$csum2" ]; then
+    fail "Tracing file is still changing"
+fi
+
+clear_trace
+
+cnt=`cnt_trace`
+if [ $cnt -ne 0 ]; then
+    fail "Tracing is still happeing"
+fi
+
+echo "!$func:traceoff" >> set_ftrace_filter
+
+cnt=`grep schedule set_ftrace_filter | wc -l`
+if [ $cnt -ne 0 ]; then
+    fail "traceoff trigger still exists"
+fi
+
+on=`cat tracing_on`
+if [ $on != "0" ]; then
+    fail "Tracing is started again"
+fi
+
+echo "$func:traceon" > set_ftrace_filter
+
+cnt=`grep schedule set_ftrace_filter | wc -l`
+if [ $cnt -ne 1 ]; then
+    fail "traceon trigger not found"
+fi
+
+cnt=`cnt_trace`
+if [ $cnt -eq 0 ]; then
+   fail "Tracing did not start"
+fi
+
+on=`cat tracing_on`
+if [ $on != "1" ]; then
+    fail "Tracing was not enabled"
+fi
+
+
+echo "!$func:traceon" >> set_ftrace_filter
+
+cnt=`grep schedule set_ftrace_filter | wc -l`
+if [ $cnt -ne 0 ]; then
+   fail "traceon trigger still exists"
+fi
+
+check_sleep() {
+    val=$1
+    sleep $SLEEP_TIME
+    cat set_ftrace_filter
+    on=`cat tracing_on`
+    if [ $on != "$val" ]; then
+	fail "Expected tracing_on to be $val, but it was $on"
+    fi
+}
+
+
+echo "$func:traceoff:3" > set_ftrace_filter
+check_sleep "0"
+echo 1 > tracing_on
+check_sleep "0"
+echo 1 > tracing_on
+check_sleep "0"
+echo 1 > tracing_on
+check_sleep "1"
+echo "!$func:traceoff:0" > set_ftrace_filter
+
+if grep -e traceon -e traceoff set_ftrace_filter; then
+    fail "Tracing on and off triggers still exist"
+fi
+
+disable_events
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc
new file mode 100644
index 000000000000..6c190620db47
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/tracing-error-log.tc
@@ -0,0 +1,15 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: ftrace - test tracing error log support
+# event tracing is currently the only ftrace tracer that uses the
+# tracing error_log, hence this check
+# requires: set_event error_log
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+ftrace_errlog_check 'event filter parse error' '((sig >= 10 && sig < 15) || dsig ^== 17) && comm != bash' 'events/signal/signal_generate/filter'
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/functions b/tools/testing/selftests/ftrace/test.d/functions
index 5d8cd06d920f..e8e718139294 100644
--- a/tools/testing/selftests/ftrace/test.d/functions
+++ b/tools/testing/selftests/ftrace/test.d/functions
@@ -1,4 +1,3 @@
-
 clear_trace() { # reset trace output
     echo > trace
 }
@@ -14,3 +13,214 @@ enable_tracing() { # start trace recording
 reset_tracer() { # reset the current tracer
     echo nop > current_tracer
 }
+
+reset_trigger_file() {
+    # remove action triggers first
+    grep -H ':on[^:]*(' $@ |
+    while read line; do
+        cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
+	file=`echo $line | cut -f1 -d:`
+	echo "!$cmd" >> $file
+    done
+    grep -Hv ^# $@ |
+    while read line; do
+        cmd=`echo $line | cut -f2- -d: | cut -f1 -d"["`
+	file=`echo $line | cut -f1 -d:`
+	echo "!$cmd" > $file
+    done
+}
+
+reset_trigger() { # reset all current setting triggers
+    if [ -d events/synthetic ]; then
+        reset_trigger_file events/synthetic/*/trigger
+    fi
+    reset_trigger_file events/*/*/trigger
+}
+
+reset_events_filter() { # reset all current setting filters
+    grep -v ^none events/*/*/filter |
+    while read line; do
+	echo 0 > `echo $line | cut -f1 -d:`
+    done
+}
+
+reset_ftrace_filter() { # reset all triggers in set_ftrace_filter
+    if [ ! -f set_ftrace_filter ]; then
+      return 0
+    fi
+    echo > set_ftrace_filter
+    grep -v '^#' set_ftrace_filter | while read t; do
+	tr=`echo $t | cut -d: -f2`
+	if [ "$tr" = "" ]; then
+	    continue
+	fi
+	if ! grep -q "$t" set_ftrace_filter; then
+		continue;
+	fi
+	name=`echo $t | cut -d: -f1 | cut -d' ' -f1`
+	if [ $tr = "enable_event" -o $tr = "disable_event" ]; then
+	    tr=`echo $t | cut -d: -f2-4`
+	    limit=`echo $t | cut -d: -f5`
+	else
+	    tr=`echo $t | cut -d: -f2`
+	    limit=`echo $t | cut -d: -f3`
+	fi
+	if [ "$limit" != "unlimited" ]; then
+	    tr="$tr:$limit"
+	fi
+	echo "!$name:$tr" > set_ftrace_filter
+    done
+}
+
+disable_events() {
+    echo 0 > events/enable
+}
+
+clear_synthetic_events() { # reset all current synthetic events
+    grep -v ^# synthetic_events |
+    while read line; do
+        echo "!$line" >> synthetic_events
+    done
+}
+
+clear_dynamic_events() { # reset all current dynamic events
+    again=1
+    stop=1
+    # loop mulitple times as some events require other to be removed first
+    while [ $again -eq 1 ]; do
+	stop=$((stop+1))
+	# Prevent infinite loops
+	if [ $stop -gt 10 ]; then
+	    break;
+	fi
+	again=2
+	grep -v '^#' dynamic_events|
+	while read line; do
+	    del=`echo $line | sed -e 's/^.\([^ ]*\).*/-\1/'`
+	    if ! echo "$del" >> dynamic_events; then
+		again=1
+	    fi
+	done
+    done
+}
+
+initialize_system() { # Reset ftrace to initial-state
+# As the initial state, ftrace will be set to nop tracer,
+# no events, no triggers, no filters, no function filters,
+# no probes, and tracing on.
+    disable_tracing
+    reset_tracer
+    reset_trigger
+    reset_events_filter
+    reset_ftrace_filter
+    disable_events
+    clear_dynamic_events
+    [ -f set_event_pid ] && echo > set_event_pid
+    [ -f set_ftrace_pid ] && echo > set_ftrace_pid
+    [ -f set_ftrace_notrace ] && echo > set_ftrace_notrace
+    [ -f set_graph_function ] && echo | tee set_graph_*
+    [ -f stack_trace_filter ] && echo > stack_trace_filter
+    [ -f kprobe_events ] && echo > kprobe_events
+    [ -f uprobe_events ] && echo > uprobe_events
+    [ -f synthetic_events ] && echo > synthetic_events
+    [ -f snapshot ] && echo 0 > snapshot
+
+# Stop tracing while reading the trace file by default, to prevent
+# the test results while checking it and to avoid taking a long time
+# to check the result.
+    [ -f options/pause-on-trace ] && echo 1 > options/pause-on-trace
+
+    clear_trace
+    enable_tracing
+}
+
+finish_system() {
+    initialize_system
+# And recover it to default.
+    [ -f options/pause-on-trace ] && echo 0 > options/pause-on-trace
+}
+
+check_requires() { # Check required files and tracers
+    for i in "$@" ; do
+	p=${i%:program}
+        r=${i%:README}
+        t=${i%:tracer}
+	if [ $p != $i ]; then
+	    if ! which $p ; then
+                echo "Required program $p is not found."
+                exit_unresolved
+	    fi
+        elif [ $t != $i ]; then
+            if ! grep -wq $t available_tracers ; then
+                echo "Required tracer $t is not configured."
+                exit_unsupported
+            fi
+        elif [ "$r" != "$i" ]; then
+	    # If this is an instance, check the top directory
+	    if echo $TRACING_DIR | grep -q "/instances/"; then
+		test="$TRACING_DIR/../.."
+	    else
+		test=$TRACING_DIR
+	    fi
+            if ! grep -Fq "$r" $test/README ; then
+                echo "Required feature pattern \"$r\" is not in README."
+                exit_unsupported
+            fi
+        elif [ ! -e $i ]; then
+            echo "Required feature interface $i doesn't exist."
+            exit_unsupported
+        fi
+    done
+}
+
+LOCALHOST=127.0.0.1
+
+yield() {
+    ping $LOCALHOST -c 1 || sleep .001 || usleep 1 || sleep 1
+}
+
+# The fork function in the kernel was renamed from "_do_fork" to
+# "kernel_fork". As older tests should still work with older kernels
+# as well as newer kernels, check which version of fork is used on this
+# kernel so that the tests can use the fork function for the running kernel.
+FUNCTION_FORK=`(if grep '\bkernel_clone\b' /proc/kallsyms > /dev/null; then
+                echo kernel_clone; else echo '_do_fork'; fi)`
+
+# Since probe event command may include backslash, explicitly use printf "%s"
+# to NOT interpret it.
+ftrace_errlog_check() { # err-prefix command-with-error-pos-by-^ command-file
+    pos=$(printf "%s" "${2%^*}" | wc -c) # error position
+    command=$(printf "%s" "$2" | tr -d ^)
+    echo "Test command: $command"
+    echo > error_log
+    (! printf "%s" "$command" >> "$3" ) 2> /dev/null
+    grep "$1: error:" -A 3 error_log
+    N=$(tail -n 1 error_log | wc -c)
+    # "  Command: " and "^\n" => 13
+    test $(expr 13 + $pos) -eq $N
+}
+
+# Helper to get the tracefs mount point
+get_mount_point() {
+	local mount_point=`stat -c '%m' .`
+
+	# If stat -c '%m' does not work (e.g. busybox) or failed, try to use the
+	# current working directory (which should be a tracefs) as the mount point.
+	if [ ! -d "$mount_point" ]; then
+		if mount | grep -qw "$PWD"; then
+			mount_point=$PWD
+		else
+			# If PWD doesn't work, that is an environmental problem.
+			exit_unresolved
+		fi
+	fi
+	echo "$mount_point"
+}
+
+# Helper function to retrieve mount options for a given mount point
+get_mnt_options() {
+	local mnt_point="$1"
+	local opts=$(mount | grep -m1 "$mnt_point" | sed -e 's/.*(\(.*\)).*/\1/')
+
+	echo "$opts"
+}
+\ No newline at end of file
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
new file mode 100644
index 000000000000..42422e425107
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
@@ -0,0 +1,142 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test creation and deletion of trace instances while setting an event
+# requires: instances
+
+fail() { # mesg
+    rmdir foo 2>/dev/null
+    echo $1
+    set -e
+    exit_fail
+}
+
+cd instances
+
+# we don't want to fail on error
+set +e
+
+mkdir x
+rmdir x
+result=$?
+
+if [ $result -ne 0 ]; then
+    echo "instance rmdir not supported"
+    exit_unsupported
+fi
+
+instance_slam() {
+        while :; do
+                mkdir foo 2> /dev/null
+                rmdir foo 2> /dev/null
+        done
+}
+
+instance_read() {
+        while :; do
+                cat foo/trace 1> /dev/null 2>&1
+        done
+}
+
+instance_set() {
+        while :; do
+                echo 1 > foo/events/sched/sched_switch/enable
+        done 2> /dev/null
+}
+
+instance_slam &
+p1=$!
+echo $p1
+
+instance_set &
+p2=$!
+echo $p2
+
+instance_read &
+p3=$!
+echo $p3
+
+sleep 1
+
+kill -1 $p3
+kill -1 $p2
+kill -1 $p1
+
+echo "Wait for processes to finish"
+wait $p1 $p2 $p3
+echo "all processes finished, wait for cleanup"
+sleep 1
+
+mkdir foo
+ls foo > /dev/null
+rmdir foo
+if [ -d foo ]; then
+        fail "foo still exists"
+fi
+
+mkdir foo
+echo "schedule:enable_event:sched:sched_switch" > foo/set_ftrace_filter
+rmdir foo
+if [ -d foo ]; then
+        fail "foo still exists"
+fi
+if grep -q "schedule:enable_event:sched:sched_switch" ../set_ftrace_filter; then
+	echo "Older kernel detected. Cleanup filter"
+	echo '!schedule:enable_event:sched:sched_switch' > ../set_ftrace_filter
+fi
+
+instance_slam() {
+    while :; do
+	mkdir x
+	mkdir y
+	mkdir z
+	rmdir x
+	rmdir y
+	rmdir z
+    done 2>/dev/null
+}
+
+instance_slam &
+p1=$!
+echo $p1
+
+instance_slam &
+p2=$!
+echo $p2
+
+instance_slam &
+p3=$!
+echo $p3
+
+instance_slam &
+p4=$!
+echo $p4
+
+instance_slam &
+p5=$!
+echo $p5
+
+ls -lR >/dev/null
+sleep 1
+
+kill -1 $p1
+kill -1 $p2
+kill -1 $p3
+kill -1 $p4
+kill -1 $p5
+
+echo "Wait for processes to finish"
+wait $p1 $p2 $p3 $p4 $p5
+echo "all processes finished, wait for cleanup"
+
+mkdir x y z
+ls x y z
+rmdir x y z
+for d in x y z; do
+        if [ -d $d ]; then
+                fail "instance $d still exists"
+        fi
+done
+
+set -e
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
new file mode 100644
index 000000000000..607521d2592b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test creation and deletion of trace instances
+# requires: instances
+
+fail() { # mesg
+    rmdir x y z 2>/dev/null
+    echo $1
+    set -e
+    exit_fail
+}
+
+cd instances
+
+# we don't want to fail on error
+set +e
+
+mkdir x
+rmdir x
+result=$?
+
+if [ $result -ne 0 ]; then
+    echo "instance rmdir not supported"
+    exit_unsupported
+fi
+
+instance_slam() {
+    while :; do
+	mkdir x
+	mkdir y
+	mkdir z
+	rmdir x
+	rmdir y
+	rmdir z
+    done 2>/dev/null
+}
+
+instance_slam &
+p1=$!
+echo $p1
+
+instance_slam &
+p2=$!
+echo $p2
+
+instance_slam &
+p3=$!
+echo $p3
+
+instance_slam &
+p4=$!
+echo $p4
+
+instance_slam &
+p5=$!
+echo $p5
+
+ls -lR >/dev/null
+sleep 1
+
+kill -1 $p1
+kill -1 $p2
+kill -1 $p3
+kill -1 $p4
+kill -1 $p5
+
+echo "Wait for processes to finish"
+wait $p1 $p2 $p3 $p4 $p5
+echo "all processes finished, wait for cleanup"
+
+mkdir x y z
+ls x y z
+rmdir x y z
+for d in x y z; do
+        if [ -d $d ]; then
+                fail "instance $d still exists"
+        fi
+done
+
+set -e
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
index a5a426211129..2428a3ed78c9 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
@@ -1,12 +1,9 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event - adding and removing
+# requires: kprobe_events
 
-[ -f kprobe_events ] || exit_unsupported # this is configurable
-
-echo 0 > events/enable
-echo > kprobe_events
-echo p:myevent do_fork > kprobe_events
+echo p:myevent $FUNCTION_FORK > kprobe_events
 grep myevent kprobe_events
 test -d events/kprobes/myevent
 echo > kprobe_events
-clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
index d8c7bb6581fe..010a8b1d6c1d 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
@@ -1,14 +1,11 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event - busy event check
+# requires: kprobe_events
 
-[ -f kprobe_events ] || exit_unsupported
-
-echo 0 > events/enable
-echo > kprobe_events
-echo p:myevent do_fork > kprobe_events
+echo p:myevent $FUNCTION_FORK > kprobe_events
 test -d events/kprobes/myevent
 echo 1 > events/kprobes/myevent/enable
-echo > kprobe_events && exit 1 # this must fail
+echo > kprobe_events && exit_fail # this must fail
 echo 0 > events/kprobes/myevent/enable
 echo > kprobe_events # this must succeed
-clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
index c45ee2761354..a96a1dc7014f 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
@@ -1,17 +1,19 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event with arguments
+# requires: kprobe_events
 
-[ -f kprobe_events ] || exit_unsupported # this is configurable
-
-echo 0 > events/enable
-echo > kprobe_events
-echo 'p:testprobe do_fork $stack $stack0 +0($stack)' > kprobe_events
-grep testprobe kprobe_events
+echo "p:testprobe $FUNCTION_FORK \$stack \$stack0 +0(\$stack)" > kprobe_events
+grep testprobe kprobe_events | grep -q 'arg1=\$stack arg2=\$stack0 arg3=+0(\$stack)'
 test -d events/kprobes/testprobe
+
 echo 1 > events/kprobes/testprobe/enable
 ( echo "forked")
+grep testprobe trace | grep "$FUNCTION_FORK" | \
+  grep -q 'arg1=0x[[:xdigit:]]* arg2=0x[[:xdigit:]]* arg3=0x[[:xdigit:]]*$'
+
 echo 0 > events/kprobes/testprobe/enable
 echo "-:testprobe" >> kprobe_events
 clear_trace
-test -d events/kprobes/testprobe && exit 1 || exit 0
+test -d events/kprobes/testprobe && exit_fail || exit_pass
 
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_char.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_char.tc
new file mode 100644
index 000000000000..77f4c07cdcb8
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_char.tc
@@ -0,0 +1,60 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event char type argument
+# requires: kprobe_events available_filter_functions
+
+case `uname -m` in
+x86_64)
+  ARG1=%di
+;;
+i[3456]86)
+  ARG1=%ax
+;;
+aarch64)
+  ARG1=%x0
+;;
+arm*)
+  ARG1=%r0
+;;
+ppc64*)
+  ARG1=%r3
+;;
+ppc*)
+  ARG1=%r3
+;;
+s390*)
+  ARG1=%r2
+;;
+mips*)
+  ARG1=%r4
+;;
+loongarch*)
+  ARG1=%r4
+;;
+riscv*)
+  ARG1=%a0
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
+esac
+
+: "Test get argument (1)"
+if grep -q eventfs_create_dir available_filter_functions; then
+  DIR_NAME="eventfs_create_dir"
+elif grep -q eventfs_add_dir available_filter_functions; then
+  DIR_NAME="eventfs_add_dir"
+else
+  DIR_NAME="tracefs_create_dir"
+fi
+echo "p:testprobe ${DIR_NAME} arg1=+0(${ARG1}):char" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+echo "p:test $FUNCTION_FORK" >> kprobe_events
+grep -qe "testprobe.* arg1='t'" trace
+
+echo 0 > events/kprobes/testprobe/enable
+: "Test get argument (2)"
+echo "p:testprobe ${DIR_NAME} arg1=+0(${ARG1}):char arg2=+0(${ARG1}):char[4]" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+echo "p:test $FUNCTION_FORK" >> kprobe_events
+grep -qe "testprobe.* arg1='t' arg2={'t','e','s','t'}" trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc
new file mode 100644
index 000000000000..a053ee2e7d77
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_comm.tc
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event with comm arguments
+# requires: kprobe_events
+
+grep -A1 "fetcharg:" README | grep -q "\$comm" || exit_unsupported # this is too old
+
+echo "p:testprobe $FUNCTION_FORK comm=\$comm " > kprobe_events
+grep testprobe kprobe_events | grep -q 'comm=$comm'
+test -d events/kprobes/testprobe
+
+echo 1 > events/kprobes/testprobe/enable
+( echo "forked")
+grep testprobe trace | grep -q 'comm=".*"'
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
new file mode 100644
index 000000000000..39001073f7ed
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_string.tc
@@ -0,0 +1,61 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event string type argument
+# requires: kprobe_events available_filter_functions
+
+case `uname -m` in
+x86_64)
+  ARG1=%di
+;;
+i[3456]86)
+  ARG1=%ax
+;;
+aarch64)
+  ARG1=%x0
+;;
+arm*)
+  ARG1=%r0
+;;
+ppc64*)
+  ARG1=%r3
+;;
+ppc*)
+  ARG1=%r3
+;;
+s390*)
+  ARG1=%r2
+;;
+mips*)
+  ARG1=%r4
+;;
+loongarch*)
+  ARG1=%r4
+;;
+riscv*)
+  ARG1=%a0
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
+esac
+
+: "Test get argument (1)"
+if grep -q eventfs_create_dir available_filter_functions; then
+  DIR_NAME="eventfs_create_dir"
+elif grep -q eventfs_add_dir available_filter_functions; then
+  DIR_NAME="eventfs_add_dir"
+else
+  DIR_NAME="tracefs_create_dir"
+fi
+echo "p:testprobe ${DIR_NAME} arg1=+0(${ARG1}):string" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+echo "p:test $FUNCTION_FORK" >> kprobe_events
+grep -qe "testprobe.* arg1=\"test\"" trace
+
+echo 0 > events/kprobes/testprobe/enable
+: "Test get argument (2)"
+echo "p:testprobe ${DIR_NAME} arg1=+0(${ARG1}):string arg2=+0(${ARG1}):string" > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+echo "p:test $FUNCTION_FORK" >> kprobe_events
+grep -qe "testprobe.* arg1=\"test\" arg2=\"test\"" trace
+
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc
new file mode 100644
index 000000000000..717130ed4feb
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_symbol.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event symbol argument
+# requires: kprobe_events
+
+SYMBOL="linux_proc_banner"
+
+if [ ! -f /proc/kallsyms ]; then
+  echo "Can not check the target symbol - please enable CONFIG_KALLSYMS"
+  exit_unresolved
+elif ! grep "$SYMBOL\$" /proc/kallsyms; then
+  echo "Linux banner is not exported - please enable CONFIG_KALLSYMS_ALL"
+  exit_unresolved
+fi
+
+: "Test get basic types symbol argument"
+echo "p:testprobe_u $FUNCTION_FORK arg1=@linux_proc_banner:u64 arg2=@linux_proc_banner:u32 arg3=@linux_proc_banner:u16 arg4=@linux_proc_banner:u8" > kprobe_events
+echo "p:testprobe_s $FUNCTION_FORK arg1=@linux_proc_banner:s64 arg2=@linux_proc_banner:s32 arg3=@linux_proc_banner:s16 arg4=@linux_proc_banner:s8" >> kprobe_events
+if grep -q "x8/16/32/64" README; then
+  echo "p:testprobe_x $FUNCTION_FORK arg1=@linux_proc_banner:x64 arg2=@linux_proc_banner:x32 arg3=@linux_proc_banner:x16 arg4=@linux_proc_banner:x8" >> kprobe_events
+fi
+echo "p:testprobe_bf $FUNCTION_FORK arg1=@linux_proc_banner:b8@4/32" >> kprobe_events
+echo 1 > events/kprobes/enable
+(echo "forked")
+echo 0 > events/kprobes/enable
+grep "testprobe_[usx]:.* arg1=.* arg2=.* arg3=.* arg4=.*" trace
+grep "testprobe_bf:.* arg1=.*" trace
+
+: "Test get string symbol argument"
+echo "p:testprobe_str $FUNCTION_FORK arg1=@linux_proc_banner:string" > kprobe_events
+echo 1 > events/kprobes/enable
+(echo "forked")
+echo 0 > events/kprobes/enable
+RESULT=`grep "testprobe_str" trace | sed -e 's/.* arg1=\(.*\)/\1/'`
+
+RESULT=`echo $RESULT | sed -e 's/.* \((.*)\) \((.*)\) .*/\1 \2/'`
+ORIG=`cat /proc/version | sed -e 's/.* \((.*)\) \((.*)\) .*/\1 \2/'`
+test "$RESULT" = "$ORIG"
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
new file mode 100644
index 000000000000..8f1292ad80ff
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_syntax.tc
@@ -0,0 +1,115 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event argument syntax
+# requires: kprobe_events "x8/16/32/64":README
+
+PROBEFUNC="vfs_read"
+GOODREG=
+BADREG=
+GOODSYM="_sdata"
+if ! grep -qw ${GOODSYM} /proc/kallsyms ; then
+  GOODSYM=$PROBEFUNC
+fi
+BADSYM="deaqswdefr"
+SYMADDR=0x`grep -w ${GOODSYM} /proc/kallsyms | cut -f 1 -d " "`
+GOODTYPE="x16"
+BADTYPE="y16"
+
+case `uname -m` in
+x86_64|i[3456]86)
+  GOODREG=%ax
+  BADREG=%ex
+;;
+aarch64)
+  GOODREG=%x0
+  BADREG=%ax
+;;
+arm*)
+  GOODREG=%r0
+  BADREG=%ax
+;;
+ppc*)
+  GOODREG=%r3
+  BADREG=%msr
+;;
+s390*)
+  GOODREG=%r2
+  BADREG=%s2
+;;
+mips*)
+  GOODREG=%r4
+  BADREG=%r12
+;;
+loongarch*)
+  GOODREG=%r4
+  BADREG=%r12
+;;
+riscv*)
+  GOODREG=%a0
+  BADREG=%a8
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_untested
+esac
+
+test_goodarg() # Good-args
+{
+  while [ "$1" ]; do
+    echo "p ${PROBEFUNC} $1" > kprobe_events
+    shift 1
+  done;
+}
+
+test_badarg() # Bad-args
+{
+  while [ "$1" ]; do
+    ! echo "p ${PROBEFUNC} $1" > kprobe_events
+    shift 1
+  done;
+}
+
+echo > kprobe_events
+
+: "Register access"
+test_goodarg ${GOODREG}
+test_badarg ${BADREG}
+
+: "Symbol access"
+test_goodarg "@${GOODSYM}" "@${SYMADDR}" "@${GOODSYM}+10" "@${GOODSYM}-10"
+test_badarg "@" "@${BADSYM}" "@${GOODSYM}*10" "@${GOODSYM}/10" \
+	    "@${GOODSYM}%10" "@${GOODSYM}&10" "@${GOODSYM}|10"
+
+: "Stack access"
+test_goodarg "\$stack" "\$stack0" "\$stack1"
+test_badarg "\$stackp" "\$stack0+10" "\$stack1-10"
+
+: "Retval access"
+echo "r ${PROBEFUNC} \$retval" > kprobe_events
+! echo "p ${PROBEFUNC} \$retval" > kprobe_events
+
+# $comm was introduced in 4.8, older kernels reject it.
+if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then
+: "Comm access"
+test_goodarg "\$comm"
+fi
+
+: "Indirect memory access"
+test_goodarg "+0(${GOODREG})" "-0(${GOODREG})" "+10(\$stack)" \
+	"+0(\$stack1)" "+10(@${GOODSYM}-10)" "+0(+10(+20(\$stack)))"
+test_badarg "+(${GOODREG})" "(${GOODREG}+10)" "-(${GOODREG})" "(${GOODREG})" \
+	"+10(\$comm)" "+0(${GOODREG})+10"
+
+: "Name assignment"
+test_goodarg "varname=${GOODREG}"
+test_badarg "varname=varname2=${GOODREG}"
+
+: "Type syntax"
+test_goodarg "${GOODREG}:${GOODTYPE}"
+test_badarg "${GOODREG}::${GOODTYPE}" "${GOODREG}:${BADTYPE}" \
+	"${GOODTYPE}:${GOODREG}"
+
+: "Combination check"
+
+test_goodarg "\$comm:string" "+0(\$stack):string"
+test_badarg "\$comm:x64" "\$stack:string" "${GOODREG}:string"
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
new file mode 100644
index 000000000000..25b7708eb559
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -0,0 +1,47 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobes event arguments with types
+# requires: kprobe_events "x8/16/32/64":README
+
+gen_event() { # Bitsize
+  echo "p:testprobe $FUNCTION_FORK \$stack0:s$1 \$stack0:u$1 \$stack0:x$1 \$stack0:b4@4/$1"
+}
+
+check_types() { # s-type u-type x-type bf-type width
+  test $# -eq 5
+  CW=$5
+  CW=$((CW / 4))
+  X1=`printf "%x" $1 | tail -c ${CW}`
+  X2=`printf "%x" $2`
+  X3=`printf "%x" $3`
+  test $X1 = $X2
+  test $X2 = $X3
+  test 0x$X3 = $3
+
+  B4=`printf "%1x" $4`
+  B3=`printf "%03x" 0x$X3 | tail -c 2 | head -c 1`
+  test $B3 = $B4
+}
+
+for width in 64 32 16 8; do
+  : "Add new event with basic types"
+  gen_event $width > kprobe_events
+  grep testprobe kprobe_events
+  test -d events/kprobes/testprobe
+
+  : "Trace the event"
+  echo 1 > events/kprobes/testprobe/enable
+  ( echo "forked")
+  echo 0 > events/kprobes/testprobe/enable
+
+  : "Confirm the arguments is recorded in given types correctly"
+  ARGS=`grep "testprobe" trace | head -n 1 | sed -e 's/.* arg1=\(.*\) arg2=\(.*\) arg3=\(.*\) arg4=\(.*\)/\1 \2 \3 \4/'`
+  check_types $ARGS $width
+
+  : "Clear event for next loop"
+  echo "-:testprobe" >> kprobe_events
+  clear_trace
+
+done
+
+exit_pass
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
new file mode 100644
index 000000000000..d25d01a19778
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_user.tc
@@ -0,0 +1,34 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event user-memory access
+# requires: kprobe_events '$arg<N>':README
+
+grep -A10 "fetcharg:" README | grep -q 'ustring' || exit_unsupported
+grep -A10 "fetcharg:" README | grep -q '\[u\]<offset>' || exit_unsupported
+
+:;: "user-memory access syntax and ustring working on user memory";:
+echo 'p:myevent do_sys_open path=+0($arg2):ustring path2=+u0($arg2):string' \
+	> kprobe_events
+echo 'p:myevent2 do_sys_openat2 path=+0($arg2):ustring path2=+u0($arg2):string' \
+	>> kprobe_events
+
+grep myevent kprobe_events | \
+	grep -q 'path=+0($arg2):ustring path2=+u0($arg2):string'
+echo 1 > events/kprobes/myevent/enable
+echo 1 > events/kprobes/myevent2/enable
+echo > /dev/null
+echo 0 > events/kprobes/myevent/enable
+echo 0 > events/kprobes/myevent2/enable
+
+grep myevent trace | grep -q 'path="/dev/null" path2="/dev/null"'
+
+:;: "user-memory access syntax and ustring not working with kernel memory";:
+echo 'p:myevent vfs_symlink path=+0($arg3):ustring path2=+u0($arg3):string' \
+	> kprobe_events
+echo 1 > events/kprobes/myevent/enable
+ln -s foo $TMPDIR/bar
+echo 0 > events/kprobes/myevent/enable
+
+grep myevent trace | grep -q 'path=(fault) path2=(fault)'
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_vfs.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_vfs.tc
new file mode 100644
index 000000000000..21a54be6894c
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_vfs.tc
@@ -0,0 +1,40 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event VFS type argument
+# requires: kprobe_events "%pd/%pD":README
+
+: "Test argument %pd with name"
+echo 'p:testprobe dput name=$arg1:%pd' > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+grep -q "1" events/kprobes/testprobe/enable
+echo 0 > events/kprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > kprobe_events
+echo "" > trace
+
+: "Test argument %pd without name"
+echo 'p:testprobe dput $arg1:%pd' > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+grep -q "1" events/kprobes/testprobe/enable
+echo 0 > events/kprobes/testprobe/enable
+grep "dput" trace | grep -q "enable"
+echo "" > kprobe_events
+echo "" > trace
+
+: "Test argument %pD with name"
+echo 'p:testprobe vfs_read name=$arg1:%pD' > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+grep -q "1" events/kprobes/testprobe/enable
+echo 0 > events/kprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > kprobe_events
+echo "" > trace
+
+: "Test argument %pD without name"
+echo 'p:testprobe vfs_read $arg1:%pD' > kprobe_events
+echo 1 > events/kprobes/testprobe/enable
+grep -q "1"  events/kprobes/testprobe/enable
+echo 0 > events/kprobes/testprobe/enable
+grep "vfs_read" trace | grep -q "enable"
+echo "" > kprobe_events
+echo "" > trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
new file mode 100644
index 000000000000..ba19b81cef39
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
@@ -0,0 +1,46 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event auto/manual naming
+# requires: kprobe_events
+
+:;: "Add an event on function without name" ;:
+
+FUNC=`grep " [tT] .*vfs_read$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "`
+[ "x" != "x$FUNC" ] || exit_unresolved
+echo "p $FUNC" > kprobe_events
+PROBE_NAME=`echo $FUNC | tr ".:" "_"`
+test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
+
+:;: "Add an event on function with new name" ;:
+
+echo "p:event1 $FUNC" > kprobe_events
+test -d events/kprobes/event1 || exit_failure
+
+:;: "Add an event on function with new name and group" ;:
+
+echo "p:kprobes2/event2 $FUNC" > kprobe_events
+test -d events/kprobes2/event2 || exit_failure
+
+:;: "Add an event on dot function without name" ;:
+
+find_dot_func() {
+	if [ ! -f available_filter_functions ]; then
+		grep -m 10 " [tT] .*\.isra\..*$" /proc/kallsyms | tail -n 1 | cut -f 3 -d " "
+		return;
+	fi
+
+	grep " [tT] .*\.isra\..*" /proc/kallsyms | cut -f 3 -d " " | while read f; do
+		cnt=`grep -s $f available_filter_functions | wc -l`;
+		if [ $cnt -eq 1 ]; then
+			echo $f
+			break
+		fi
+	done
+}
+
+FUNC=`find_dot_func | tail -n 1`
+[ "x" != "x$FUNC" ] || exit_unresolved
+echo "p $FUNC" > kprobe_events
+EVENT=`grep $FUNC kprobe_events | cut -f 1 -d " " | cut -f 2 -d:`
+[ "x" != "x$EVENT" ] || exit_failure
+test -d events/$EVENT || exit_failure
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index ab41d2b29841..5556292601a4 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -1,36 +1,33 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event with function tracer
-
-[ -f kprobe_events ] || exit_unsupported # this is configurable
-grep function available_tracers || exit_unsupported # this is configurable
+# requires: kprobe_events stack_trace_filter function:tracer
 
 # prepare
 echo nop > current_tracer
-echo do_fork > set_ftrace_filter
-echo 0 > events/enable
-echo > kprobe_events
-echo 'p:testprobe do_fork' > kprobe_events
+echo $FUNCTION_FORK > set_ftrace_filter
+echo "p:testprobe $FUNCTION_FORK" > kprobe_events
 
 # kprobe on / ftrace off
 echo 1 > events/kprobes/testprobe/enable
 echo > trace
 ( echo "forked")
 grep testprobe trace
-! grep 'do_fork <-' trace
+! grep "$FUNCTION_FORK <-" trace
 
 # kprobe on / ftrace on
 echo function > current_tracer
 echo > trace
 ( echo "forked")
 grep testprobe trace
-grep 'do_fork <-' trace
+grep "$FUNCTION_FORK <-" trace
 
 # kprobe off / ftrace on
 echo 0 > events/kprobes/testprobe/enable
 echo > trace
 ( echo "forked")
 ! grep testprobe trace
-grep 'do_fork <-' trace
+grep "$FUNCTION_FORK <-" trace
 
 # kprobe on / ftrace on
 echo 1 > events/kprobes/testprobe/enable
@@ -38,18 +35,11 @@ echo function > current_tracer
 echo > trace
 ( echo "forked")
 grep testprobe trace
-grep 'do_fork <-' trace
+grep "$FUNCTION_FORK <-" trace
 
 # kprobe on / ftrace off
 echo nop > current_tracer
 echo > trace
 ( echo "forked")
 grep testprobe trace
-! grep 'do_fork <-' trace
-
-# cleanup
-echo nop > current_tracer
-echo > set_ftrace_filter
-echo 0 > events/kprobes/testprobe/enable
-echo > kprobe_events
-echo > trace
+! grep "$FUNCTION_FORK <-" trace
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_insn_boundary.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_insn_boundary.tc
new file mode 100644
index 000000000000..4f7cc318f331
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_insn_boundary.tc
@@ -0,0 +1,19 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2023 Akanksha J N, IBM corporation
+# description: Register multiple kprobe events in a function
+# requires: kprobe_events
+
+for i in `seq 0 255`; do
+  echo p $FUNCTION_FORK+${i} >> kprobe_events || continue
+done
+
+cat kprobe_events >> $testlog
+
+echo 1 > events/kprobes/enable
+( echo "forked" )
+echo 0 > events/kprobes/enable
+echo > kprobe_events
+echo "Waiting for unoptimizing & freeing"
+sleep 5
+echo "Done"
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
new file mode 100644
index 000000000000..7e74ee11edf9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
@@ -0,0 +1,52 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe dynamic event - probing module
+# requires: kprobe_events
+
+rmmod trace-printk ||:
+if ! modprobe trace-printk ; then
+  echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=
+m"
+  exit_unresolved;
+fi
+
+MOD=trace_printk
+FUNC=trace_printk_irq_work
+
+:;: "Add an event on a module function without specifying event name" ;:
+
+echo "p $MOD:$FUNC" > kprobe_events
+PROBE_NAME=`echo $MOD:$FUNC | tr ".:" "_"`
+test -d events/kprobes/p_${PROBE_NAME}_0 || exit_failure
+
+:;: "Add an event on a module function with new event name" ;:
+
+echo "p:event1 $MOD:$FUNC" > kprobe_events
+test -d events/kprobes/event1 || exit_failure
+
+:;: "Add an event on a module function with new event and group name" ;:
+
+echo "p:kprobes1/event1 $MOD:$FUNC" > kprobe_events
+test -d events/kprobes1/event1 || exit_failure
+
+:;: "Remove target module, but event still be there" ;:
+if ! rmmod trace-printk ; then
+  echo "Failed to unload module - please enable CONFIG_MODULE_UNLOAD"
+  exit_unresolved;
+fi
+test -d events/kprobes1/event1
+
+:;: "Check posibility to defining events on unloaded module";:
+echo "p:event2 $MOD:$FUNC" >> kprobe_events
+
+:;: "Target is gone, but we can prepare for next time";:
+echo 1 > events/kprobes1/event1/enable
+
+:;: "Load module again, which means the event1 should be recorded";:
+modprobe trace-printk
+grep "event1:" trace
+
+:;: "Remove the module again and check the event is not locked"
+rmmod trace-printk
+echo 0 > events/kprobes1/event1/enable
+echo "-:kprobes1/event1" >> kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc
new file mode 100644
index 000000000000..f0d5b7777ed7
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_multiprobe.tc
@@ -0,0 +1,32 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Create/delete multiprobe on kprobe event
+# requires: kprobe_events "Create/append/":README
+
+# Choose 2 symbols for target
+SYM1=$FUNCTION_FORK
+SYM2=do_exit
+EVENT_NAME=kprobes/testevent
+
+DEF1="p:$EVENT_NAME $SYM1"
+DEF2="p:$EVENT_NAME $SYM2"
+
+:;: "Define an event which has 2 probes" ;:
+echo $DEF1 >> kprobe_events
+echo $DEF2 >> kprobe_events
+cat kprobe_events | grep "$DEF1"
+cat kprobe_events | grep "$DEF2"
+
+:;: "Remove the event by name (should remove both)" ;:
+echo "-:$EVENT_NAME" >> kprobe_events
+test `cat kprobe_events | wc -l` -eq 0
+
+:;: "Remove just 1 event" ;:
+echo $DEF1 >> kprobe_events
+echo $DEF2 >> kprobe_events
+echo "-:$EVENT_NAME $SYM1" >> kprobe_events
+! cat kprobe_events | grep "$DEF1"
+cat kprobe_events | grep "$DEF2"
+
+:;: "Appending different type must fail" ;:
+! echo "$DEF1 \$stack" >> kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
new file mode 100644
index 000000000000..bc9514428dba
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test failure of registering kprobe on non unique symbol
+# requires: kprobe_events
+
+SYMBOL='name_show'
+
+# We skip this test on kernel where SYMBOL is unique or does not exist.
+if [ "$(grep -c -E "[[:alnum:]]+ t ${SYMBOL}" /proc/kallsyms)" -le '1' ]; then
+	exit_unsupported
+fi
+
+! echo "p:test_non_unique ${SYMBOL}" > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc
new file mode 100644
index 000000000000..9f5d99328086
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_opt_types.tc
@@ -0,0 +1,34 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (C) 2023 Akanksha J N, IBM corporation
+# description: Register/unregister optimized probe
+# requires: kprobe_events
+
+case `uname -m` in
+x86_64)
+;;
+arm*)
+;;
+ppc*)
+;;
+*)
+  echo "Please implement other architecture here"
+  exit_unsupported
+esac
+
+DEFAULT=$(cat /proc/sys/debug/kprobes-optimization)
+echo 1 > /proc/sys/debug/kprobes-optimization
+for i in `seq 0 255`; do
+        echo  "p:testprobe $FUNCTION_FORK+${i}" > kprobe_events || continue
+        echo 1 > events/kprobes/enable || continue
+        (echo "forked")
+	PROBE=$(grep $FUNCTION_FORK /sys/kernel/debug/kprobes/list)
+        echo 0 > events/kprobes/enable
+        echo > kprobe_events
+	if echo $PROBE | grep -q OPTIMIZED; then
+                echo "$DEFAULT" >  /proc/sys/debug/kprobes-optimization
+                exit_pass
+        fi
+done
+echo "$DEFAULT" >  /proc/sys/debug/kprobes-optimization
+exit_unresolved
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
new file mode 100644
index 000000000000..8f1c58f0c239
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_syntax_errors.tc
@@ -0,0 +1,122 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe event parser error log check
+# requires: kprobe_events error_log
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'trace_kprobe' "$1" 'kprobe_events'
+}
+
+if grep -q 'r\[maxactive\]' README; then
+check_error 'p^100 vfs_read'		# BAD_MAXACT_TYPE
+check_error 'r^1a111 vfs_read'		# BAD_MAXACT
+check_error 'r^100000 vfs_read'		# MAXACT_TOO_BIG
+fi
+
+check_error 'p ^non_exist_func'		# BAD_PROBE_ADDR (enoent)
+check_error 'p ^hoge-fuga'		# BAD_PROBE_ADDR (bad syntax)
+check_error 'p ^hoge+1000-1000'		# BAD_PROBE_ADDR (bad syntax)
+check_error 'r ^vfs_read+10'		# BAD_RETPROBE
+check_error 'p:^/bar vfs_read'		# NO_GROUP_NAME
+check_error 'p:^12345678901234567890123456789012345678901234567890123456789012345/bar vfs_read'	# GROUP_TOO_LONG
+
+check_error 'p:^foo.1/bar vfs_read'	# BAD_GROUP_NAME
+check_error 'p:^ vfs_read'		# NO_EVENT_NAME
+check_error 'p:foo/^12345678901234567890123456789012345678901234567890123456789012345 vfs_read'	# EVENT_TOO_LONG
+check_error 'p:foo/^bar.1 vfs_read'	# BAD_EVENT_NAME
+
+check_error 'p vfs_read ^$retval'	# RETVAL_ON_PROBE
+check_error 'p vfs_read ^$stack10000'	# BAD_STACK_NUM
+
+if grep -q '$arg<N>' README; then
+check_error 'p vfs_read ^$arg10000'	# BAD_ARG_NUM
+fi
+
+check_error 'p vfs_read ^$none_var'	# BAD_VAR
+
+check_error 'p vfs_read ^%none_reg'	# BAD_REG_NAME
+check_error 'p vfs_read ^@12345678abcde'	# BAD_MEM_ADDR
+check_error 'p vfs_read ^@+10'		# FILE_ON_KPROBE
+
+grep -q "imm-value" README && \
+check_error 'p vfs_read arg1=\^x'	# BAD_IMM
+grep -q "imm-string" README && \
+check_error 'p vfs_read arg1=\"abcd^'	# IMMSTR_NO_CLOSE
+
+check_error 'p vfs_read ^+0@0)'		# DEREF_NEED_BRACE
+check_error 'p vfs_read ^+0ab1(@0)'	# BAD_DEREF_OFFS
+check_error 'p vfs_read +0(+0(@0^)'	# DEREF_OPEN_BRACE
+
+if grep -A1 "fetcharg:" README | grep -q '\$comm' ; then
+check_error 'p vfs_read +0(^$comm)'	# COMM_CANT_DEREF
+fi
+
+check_error 'p vfs_read ^&1'		# BAD_FETCH_ARG
+
+
+# We've introduced this limitation with array support
+if grep -q ' <type>\\\[<array-size>\\\]' README; then
+check_error 'p vfs_read +0(^+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(+0(@0))))))))))))))'	# TOO_MANY_OPS?
+check_error 'p vfs_read +0(@11):u8[10^'		# ARRAY_NO_CLOSE
+check_error 'p vfs_read +0(@11):u8[10]^a'	# BAD_ARRAY_SUFFIX
+check_error 'p vfs_read +0(@11):u8[^10a]'	# BAD_ARRAY_NUM
+check_error 'p vfs_read +0(@11):u8[^256]'	# ARRAY_TOO_BIG
+fi
+
+check_error 'p vfs_read @11:^unknown_type'	# BAD_TYPE
+check_error 'p vfs_read $stack0:^string'	# BAD_STRING
+check_error 'p vfs_read @11:^b10@a/16'		# BAD_BITFIELD
+
+check_error 'p vfs_read ^arg123456789012345678901234567890=@11'	# ARG_NAME_TOO_LOG
+check_error 'p vfs_read ^=@11'			# NO_ARG_NAME
+check_error 'p vfs_read ^var.1=@11'		# BAD_ARG_NAME
+check_error 'p vfs_read var1=@11 ^var1=@12'	# USED_ARG_NAME
+check_error 'p vfs_read ^+1234567(+1234567(+1234567(+1234567(+1234567(+1234567(@1234))))))'	# ARG_TOO_LONG
+check_error 'p vfs_read arg1=^'			# NO_ARG_BODY
+
+# instruction boundary check is valid on x86 (at this moment)
+case $(uname -m) in
+  x86_64|i[3456]86)
+    echo 'p vfs_read' > kprobe_events
+    if grep -q FTRACE ../kprobes/list ; then
+	check_error 'p ^vfs_read+3'		# BAD_INSN_BNDRY (only if function-tracer is enabled)
+    fi
+    ;;
+esac
+
+# multiprobe errors
+if grep -q "Create/append/" README && grep -q "imm-value" README; then
+echo "p:kprobes/testevent $FUNCTION_FORK" > kprobe_events
+check_error '^r:kprobes/testevent do_exit'	# DIFF_PROBE_TYPE
+
+# Explicitly use printf "%s" to not interpret \1
+printf "%s" "p:kprobes/testevent $FUNCTION_FORK abcd=\\1" > kprobe_events
+check_error "p:kprobes/testevent $FUNCTION_FORK ^bcd=\\1"	# DIFF_ARG_TYPE
+check_error "p:kprobes/testevent $FUNCTION_FORK ^abcd=\\1:u8"	# DIFF_ARG_TYPE
+check_error "p:kprobes/testevent $FUNCTION_FORK ^abcd=\\\"foo\"" # DIFF_ARG_TYPE
+check_error "^p:kprobes/testevent $FUNCTION_FORK abcd=\\1"	# SAME_PROBE
+fi
+
+# %return suffix errors
+if grep -q "place (kretprobe): .*%return.*" README; then
+check_error 'p vfs_read^%hoge'		# BAD_ADDR_SUFFIX
+check_error 'p ^vfs_read+10%return'	# BAD_RETPROBE
+fi
+
+# BTF arguments errors
+if grep -q "<argname>" README; then
+check_error 'p vfs_read args=^$arg*'		# BAD_VAR_ARGS
+check_error 'p vfs_read +0(^$arg*)'		# BAD_VAR_ARGS
+check_error 'p vfs_read $arg* ^$arg*'		# DOUBLE_ARGS
+if !grep -q 'kernel return probes support:' README; then
+check_error 'r vfs_read ^$arg*'			# NOFENTRY_ARGS
+fi
+check_error 'p vfs_read+20 ^$arg*'		# NOFENTRY_ARGS
+check_error 'p vfs_read ^hoge'			# NO_BTFARG
+check_error 'p kfree ^$arg10'			# NO_BTFARG (exceed the number of parameters)
+check_error 'r kfree ^$retval'			# NO_RETVAL
+else
+check_error 'p vfs_read ^$arg*'			# NOSUP_BTFARG
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
index 31717985acc7..197cc2afd404 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
@@ -1,16 +1,19 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kretprobe dynamic event with arguments
+# requires: kprobe_events
 
-[ -f kprobe_events ] || exit_unsupported # this is configurable
-
-echo 0 > events/enable
-echo > kprobe_events
-echo 'r:testprobe2 do_fork $retval' > kprobe_events
-grep testprobe2 kprobe_events
+# Add new kretprobe event
+echo "r:testprobe2 $FUNCTION_FORK \$retval" > kprobe_events
+grep testprobe2 kprobe_events | grep -q 'arg1=\$retval'
 test -d events/kprobes/testprobe2
+
 echo 1 > events/kprobes/testprobe2/enable
 ( echo "forked")
+
+cat trace | grep testprobe2 | grep -q "<- $FUNCTION_FORK"
+
 echo 0 > events/kprobes/testprobe2/enable
 echo '-:testprobe2' >> kprobe_events
 clear_trace
-test -d events/kprobes/testprobe2 && exit 1 || exit 0
+test -d events/kprobes/testprobe2 && exit_fail || exit_pass
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_entry_arg.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_entry_arg.tc
new file mode 100644
index 000000000000..e50470b53164
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_entry_arg.tc
@@ -0,0 +1,18 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kretprobe entry argument access
+# requires: kprobe_events 'kernel return probes support:':README
+
+echo 'p:myevent1 vfs_open arg=$arg1' >> kprobe_events
+echo 'r:myevent2 vfs_open arg=$arg1' >> kprobe_events
+
+echo 1 > events/kprobes/enable
+
+echo > trace
+cat trace > /dev/null
+
+streq() {
+	test $1 = $2
+}
+
+streq `grep -A 1 -m 1 myevent1 trace | sed -r 's/^.*(arg=.*)/\1/' `
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc
new file mode 100644
index 000000000000..4f0b268c1233
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kretprobe dynamic event with maxactive
+# requires: kprobe_events 'r[maxactive]':README
+
+# Test if we successfully reject unknown messages
+if echo 'a:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
+
+# Test if we successfully reject too big maxactive
+if echo 'r1000000:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
+
+# Test if we successfully reject unparsable numbers for maxactive
+if echo 'r10fuzz:myprobeaccept inet_csk_accept' > kprobe_events; then false; else true; fi
+
+# Test for kretprobe with event name without maxactive
+echo 'r:myprobeaccept inet_csk_accept' > kprobe_events
+grep myprobeaccept kprobe_events
+test -d events/kprobes/myprobeaccept
+echo '-:myprobeaccept' >> kprobe_events
+
+# Test for kretprobe with event name with a small maxactive
+echo 'r10:myprobeaccept inet_csk_accept' > kprobe_events
+grep myprobeaccept kprobe_events
+test -d events/kprobes/myprobeaccept
+echo '-:myprobeaccept' >> kprobe_events
+
+# Test for kretprobe without event name without maxactive
+echo 'r inet_csk_accept' > kprobe_events
+grep inet_csk_accept kprobe_events
+echo > kprobe_events
+
+# Test for kretprobe without event name with a small maxactive
+echo 'r10 inet_csk_accept' > kprobe_events
+grep inet_csk_accept kprobe_events
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_return_suffix.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_return_suffix.tc
new file mode 100644
index 000000000000..f07bd15cc033
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_return_suffix.tc
@@ -0,0 +1,21 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kretprobe %%return suffix test
+# requires: kprobe_events '<symbol>[+<offset>]%return':README
+
+# Test for kretprobe by "r"
+echo 'r:myprobeaccept vfs_read' > kprobe_events
+RESULT1=`cat kprobe_events`
+
+# Test for kretprobe by "%return"
+echo 'p:myprobeaccept vfs_read%return' > kprobe_events
+RESULT2=`cat kprobe_events`
+
+if [ "$RESULT1" != "$RESULT2" ]; then
+	echo "Error: %return suffix didn't make a return probe."
+	echo "r-command: $RESULT1"
+	echo "%return: $RESULT2"
+	exit_fail
+fi
+
+echo > kprobe_events
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
new file mode 100644
index 000000000000..be754f5bcf79
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Register/unregister many kprobe events
+# requires: kprobe_events
+
+# ftrace fentry skip size depends on the machine architecture.
+# Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le
+case `uname -m` in
+  x86_64|i[3456]86) OFFS=5;;
+  ppc64le) OFFS=8;;
+  *) OFFS=0;;
+esac
+
+N=0
+echo "Setup up kprobes on first available 256 text symbols"
+grep -i " t " /proc/kallsyms | cut -f3 -d" " | grep -v .*\\..* | \
+while read i; do
+  echo p ${i}+${OFFS} >> kprobe_events && N=$((N+1)) ||:
+  test $N -eq 256 && break
+done
+
+L=`cat kprobe_events | wc -l`
+if [ $L -ne 256 ]; then
+  echo "The number of kprobes events ($L) is not 256"
+  exit_fail
+fi
+
+cat kprobe_events >> $testlog
+
+echo 1 > events/kprobes/enable
+echo 0 > events/kprobes/enable
+echo > kprobe_events
+echo "Waiting for unoptimizing & freeing"
+sleep 5
+echo "Done"
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc b/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc
new file mode 100644
index 000000000000..68425987a5dd
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/probepoint.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe events - probe points
+# requires: kprobe_events
+
+TARGET_FUNC=tracefs_create_dir
+
+dec_addr() { # hexaddr
+  printf "%d" "0x"`echo $1 | tail -c 8`
+}
+
+set_offs() { # prev target next
+  A1=`dec_addr $1`
+  A2=`dec_addr $2`
+  A3=`dec_addr $3`
+  TARGET="0x$2" # an address
+  PREV=`expr $A1 - $A2` # offset to previous symbol
+  NEXT=+`expr $A3 - $A2` # offset to next symbol
+  OVERFLOW=+`printf "0x%x" ${PREV}` # overflow offset to previous symbol
+}
+
+# We have to decode symbol addresses to get correct offsets.
+# If the offset is not an instruction boundary, it cause -EILSEQ.
+set_offs `grep -v __pfx_ /proc/kallsyms | grep -A1 -B1 ${TARGET_FUNC} | cut -f 1 -d " " | xargs`
+
+UINT_TEST=no
+# printf "%x" -1 returns (unsigned long)-1.
+if [ `printf "%x" -1 | wc -c` != 9 ]; then
+  UINT_TEST=yes
+fi
+
+echo "p:testprobe ${TARGET_FUNC}" > kprobe_events
+echo "p:testprobe ${TARGET}" > kprobe_events
+echo "p:testprobe ${TARGET_FUNC}${NEXT}" > kprobe_events
+! echo "p:testprobe ${TARGET_FUNC}${PREV}" > kprobe_events
+if [ "${UINT_TEST}" = yes ]; then
+! echo "p:testprobe ${TARGET_FUNC}${OVERFLOW}" > kprobe_events
+fi
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
new file mode 100644
index 000000000000..34fb89b0c61f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/profile.tc
@@ -0,0 +1,14 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Kprobe profile
+# requires: kprobe_events
+
+! grep -q 'myevent' kprobe_profile
+echo "p:myevent $FUNCTION_FORK" > kprobe_events
+grep -q 'myevent[[:space:]]*0[[:space:]]*0$' kprobe_profile
+echo 1 > events/kprobes/myevent/enable
+( echo "forked" )
+grep -q 'myevent[[:space:]]*[[:digit:]]*[[:space:]]*0$' kprobe_profile
+echo 0 > events/kprobes/myevent/enable
+echo > kprobe_events
+! grep -q 'myevent' kprobe_profile
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc
new file mode 100644
index 000000000000..c817158b99db
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/uprobe_syntax_errors.tc
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Uprobe event parser error log check
+# requires: uprobe_events error_log
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'trace_uprobe' "$1" 'uprobe_events'
+}
+
+check_error 'p ^/non_exist_file:100'	# FILE_NOT_FOUND
+check_error 'p ^/sys:100'		# NO_REGULAR_FILE
+check_error 'p /bin/sh:^10a'		# BAD_UPROBE_OFFS
+check_error 'p /bin/sh:10(^1a)'		# BAD_REFCNT
+check_error 'p /bin/sh:10(10^'		# REFCNT_OPEN_BRACE
+check_error 'p /bin/sh:10(10)^a'	# BAD_REFCNT_SUFFIX
+
+check_error 'p /bin/sh:10 ^@+ab'	# BAD_FILE_OFFS
+check_error 'p /bin/sh:10 ^@symbol'	# SYM_ON_UPROBE
+
+# %return suffix error
+if grep -q "place (uprobe): .*%return.*" README; then
+check_error 'p /bin/sh:10^%hoge'	# BAD_ADDR_SUFFIX
+check_error 'p /bin/sh:10(10)^%return'	# BAD_REFCNT_SUFFIX
+fi
+
+# symstr is not supported by uprobe
+if grep -q ".*symstr.*" README; then
+check_error 'p /bin/sh:10 $stack0:^symstr'	# BAD_TYPE
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc
new file mode 100644
index 000000000000..ba1038953873
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/preemptirq/irqsoff_tracer.tc
@@ -0,0 +1,78 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: test for the preemptirqsoff tracer
+# requires: preemptoff:tracer irqsoff:tracer
+
+MOD=preemptirq_delay_test
+
+fail() {
+    reset_tracer
+    rmmod $MOD || true
+    exit_fail
+}
+
+unsup() { #msg
+    reset_tracer
+    rmmod $MOD || true
+    echo $1
+    exit_unsupported
+}
+
+unres() { #msg
+    reset_tracer
+    rmmod $MOD || true
+    echo $1
+    exit_unresolved
+}
+
+modprobe $MOD || unres "$MOD module not available"
+rmmod $MOD
+
+reset_tracer
+
+# Simulate preemptoff section for half a second couple of times
+echo preemptoff > current_tracer
+sleep 1
+modprobe $MOD test_mode=preempt delay=500000 || fail
+rmmod $MOD || fail
+modprobe $MOD test_mode=preempt delay=500000 || fail
+rmmod $MOD || fail
+modprobe $MOD test_mode=preempt delay=500000 || fail
+rmmod $MOD || fail
+
+cat trace
+
+# Confirm which tracer
+grep -q "tracer: preemptoff" trace || fail
+
+# Check the end of the section
+grep -E -q "5.....us : <stack trace>" trace || fail
+
+# Check for 500ms of latency
+grep -E -q "latency: 5..... us" trace || fail
+
+reset_tracer
+
+# Simulate irqsoff section for half a second couple of times
+echo irqsoff > current_tracer
+sleep 1
+modprobe $MOD test_mode=irq delay=500000 || fail
+rmmod $MOD || fail
+modprobe $MOD test_mode=irq delay=500000 || fail
+rmmod $MOD || fail
+modprobe $MOD test_mode=irq delay=500000 || fail
+rmmod $MOD || fail
+
+cat trace
+
+# Confirm which tracer
+grep -q "tracer: irqsoff" trace || fail
+
+# Check the end of the section
+grep -E -q "5.....us : <stack trace>" trace || fail
+
+# Check for 500ms of latency
+grep -E -q "latency: 5..... us" trace || fail
+
+reset_tracer
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/selftest/bashisms.tc b/tools/testing/selftests/ftrace/test.d/selftest/bashisms.tc
new file mode 100644
index 000000000000..1b081e910e14
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/selftest/bashisms.tc
@@ -0,0 +1,21 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Meta-selftest: Checkbashisms
+
+if [ ! -f $FTRACETEST_ROOT/ftracetest ]; then
+  echo "Hmm, we can not find ftracetest"
+  exit_unresolved
+fi
+
+if ! which checkbashisms > /dev/null 2>&1 ; then
+  echo "No checkbashisms found. skipped."
+  exit_unresolved
+fi
+
+checkbashisms $FTRACETEST_ROOT/ftracetest
+checkbashisms $FTRACETEST_ROOT/test.d/functions
+for t in $(find $FTRACETEST_ROOT/test.d -name \*.tc); do
+  checkbashisms $t
+done
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/template b/tools/testing/selftests/ftrace/test.d/template
index 5448f7abad5f..2cd8947edf72 100644
--- a/tools/testing/selftests/ftrace/test.d/template
+++ b/tools/testing/selftests/ftrace/test.d/template
@@ -1,9 +1,15 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: %HERE DESCRIBE WHAT THIS DOES%
+# requires: %HERE LIST THE REQUIRED FILES, TRACERS OR README-STRINGS%
+# The required tracer needs :tracer suffix, e.g. function:tracer
+# The required README string needs :README suffix, e.g. "x8/16/32/64":README
+# and the README string is treated as a fixed-string instead of regexp pattern.
 # you have to add ".tc" extention for your testcase file
 # Note that all tests are run with "errexit" option.
 
 exit 0 # Return 0 if the test is passed, otherwise return !0
+# Or you can call exit_pass for passed test, and exit_fail for failed test.
 # If the test could not run because of lack of feature, call exit_unsupported
 # If the test returned unclear results, call exit_unresolved
 # If the test is a dummy, or a placeholder, call exit_untested
diff --git a/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc
new file mode 100644
index 000000000000..e8f0fac9a110
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/tracer/wakeup.tc
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test wakeup tracer
+# requires: wakeup:tracer chrt:program
+
+echo wakeup > current_tracer
+echo 1 > tracing_on
+echo 0 > tracing_max_latency
+
+: "Wakeup higher priority task"
+chrt -f 5 sleep 1
+
+echo 0 > tracing_on
+grep '+ \[[[:digit:]]*\]' trace
+grep '==> \[[[:digit:]]*\]' trace
+
diff --git a/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc b/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc
new file mode 100644
index 000000000000..79807656785b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/tracer/wakeup_rt.tc
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: Test wakeup RT tracer
+# requires: wakeup_rt:tracer chrt:program
+
+echo wakeup_rt > current_tracer
+echo 1 > tracing_on
+echo 0 > tracing_max_latency
+
+: "Wakeup a realtime task"
+chrt -f 5 sleep 1
+
+echo 0 > tracing_on
+grep "+ \[[[:digit:]]*\]" trace
+grep "==> \[[[:digit:]]*\]" trace
+
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc
new file mode 100644
index 000000000000..20a35fea13f8
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-action-hist-xfail.tc
@@ -0,0 +1,20 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger expected fail actions
+# requires: set_event snapshot "snapshot()":README
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test expected snapshot action failure"
+
+echo 'hist:keys=comm:onmatch(sched.sched_wakeup).snapshot()' >> events/sched/sched_waking/trigger && exit_fail
+
+echo "Test expected save action failure"
+
+echo 'hist:keys=comm:onmatch(sched.sched_wakeup).save(comm,prio)' >> events/sched/sched_waking/trigger && exit_fail
+
+exit_xfail
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc
new file mode 100644
index 000000000000..04c5dd7d0acc
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-field-variable-support.tc
@@ -0,0 +1,33 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test field variable support
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test field variable support"
+
+echo 'wakeup_latency u64 lat; pid_t pid; int prio; char comm[16]' > synthetic_events
+echo 'hist:keys=comm:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
+echo 'hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
+echo 'hist:keys=pid,prio,comm:vals=lat:sort=pid,prio' > events/synthetic/wakeup_latency/trigger
+
+ping $LOCALHOST -c 3
+if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
+    fail "Failed to create inter-event histogram"
+fi
+
+if ! grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
+    fail "Failed to create histogram with field variable"
+fi
+
+echo '!hist:keys=next_comm:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).wakeup_latency($wakeup_lat,next_pid,sched.sched_waking.prio,next_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
+
+if grep -q "synthetic_prio=prio" events/sched/sched_waking/hist; then
+    fail "Failed to remove histogram with field variable"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc
new file mode 100644
index 000000000000..f7447d800899
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-inter-event-combined-hist.tc
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event combined histogram trigger
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'waking_latency  u64 lat pid_t pid' > synthetic_events
+if [ ! -d events/synthetic/waking_latency ]; then
+    fail "Failed to create waking_latency synthetic event"
+fi
+
+echo "Test combined histogram"
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_waking/trigger
+echo 'hist:keys=pid:waking_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).waking_latency($waking_lat,pid) if comm=="ping"' > events/sched/sched_wakeup/trigger
+echo 'hist:keys=pid,lat:sort=pid,lat' > events/synthetic/waking_latency/trigger
+
+echo 'wakeup_latency u64 lat pid_t pid' >> synthetic_events
+echo 'hist:keys=pid:ts1=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_wakeup/trigger
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts1:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid) if next_comm=="ping"' > events/sched/sched_switch/trigger
+
+echo 'waking_plus_wakeup_latency u64 lat; pid_t pid' >> synthetic_events
+echo 'hist:keys=pid,lat:sort=pid,lat:ww_lat=$waking_lat+$wakeup_lat:onmatch(synthetic.wakeup_latency).waking_plus_wakeup_latency($ww_lat,pid)' >> events/synthetic/wakeup_latency/trigger
+echo 'hist:keys=pid,lat:sort=pid,lat' >> events/synthetic/waking_plus_wakeup_latency/trigger
+
+ping $LOCALHOST -c 3
+if ! grep -q "pid:" events/synthetic/waking_plus_wakeup_latency/hist; then
+    fail "Failed to create combined histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc
new file mode 100644
index 000000000000..3ad6e3fd8ac9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-multi-actions-accept.tc
@@ -0,0 +1,22 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test multiple actions on hist trigger
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test multiple actions on hist trigger"
+echo 'wakeup_latency u64 lat; pid_t pid' >> synthetic_events
+TRIGGER1=events/sched/sched_wakeup/trigger
+TRIGGER2=events/sched/sched_switch/trigger
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="cyclictest"' > $TRIGGER1
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0 if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,next_pid) if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid:onmatch(sched.sched_wakeup).wakeup_latency(sched.sched_switch.$wakeup_lat,prev_pid) if next_comm=="cyclictest"' >> $TRIGGER2
+echo 'hist:keys=next_pid if next_comm=="cyclictest"' >> $TRIGGER2
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc
new file mode 100644
index 000000000000..55ab0270e5f7
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onchange-action-hist.tc
@@ -0,0 +1,25 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger onchange action
+# requires: set_event "onchange(var)":README ping:program
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test onchange action"
+
+echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> events/sched/sched_waking/trigger
+
+ping $LOCALHOST -c 3
+nice -n 1 ping $LOCALHOST -c 3
+
+if ! grep -q "changed:" events/sched/sched_waking/hist; then
+    fail "Failed to create onchange action inter-event histogram"
+fi
+
+echo '!hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio) if comm=="ping"' >> events/sched/sched_waking/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc
new file mode 100644
index 000000000000..d645abcf11c4
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-action-hist.tc
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger onmatch action
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
+if [ ! -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to create wakeup_latency synthetic event"
+fi
+
+echo "Test create histogram for synthetic event"
+echo "Test histogram variables,simple expression support and onmatch action"
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
+echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger
+
+ping $LOCALHOST -c 5
+if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
+    fail "Failed to create onmatch action inter-event histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc
new file mode 100644
index 000000000000..c369247efb35
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmatch-onmax-action-hist.tc
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger onmatch-onmax action
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
+if [ ! -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to create wakeup_latency synthetic event"
+fi
+
+echo "Test create histogram for synthetic event"
+echo "Test histogram variables,simple expression support and onmatch-onmax action"
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).wakeup_latency($wakeup_lat,next_pid,next_comm):onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
+echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger
+
+ping $LOCALHOST -c 5
+if [ ! grep -q "ping" events/synthetic/wakeup_latency/hist -o ! grep -q "max:" events/sched/sched_switch/hist]; then
+    fail "Failed to create onmatch-onmax action inter-event histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc
new file mode 100644
index 000000000000..e28dc5f11b2b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-onmax-action-hist.tc
@@ -0,0 +1,28 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger onmax action
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
+if [ ! -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to create wakeup_latency synthetic event"
+fi
+
+echo "Test onmax action"
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' >> events/sched/sched_waking/trigger
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmax($wakeup_lat).save(next_comm,prev_pid,prev_prio,prev_comm) if next_comm=="ping"' >> events/sched/sched_switch/trigger
+
+ping $LOCALHOST -c 3
+if ! grep -q "max:" events/sched/sched_switch/hist; then
+    fail "Failed to create onmax action inter-event histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc
new file mode 100644
index 000000000000..9eb37c2fa417
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-snapshot-action-hist.tc
@@ -0,0 +1,33 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger snapshot action
+# requires: set_event snapshot events/sched/sched_process_fork/hist "onchange(var)":README "snapshot()":README ping:program
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test snapshot action"
+
+echo 1 > events/sched/enable
+
+echo 'hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
+
+ping $LOCALHOST -c 3
+nice -n 1 ping $LOCALHOST -c 3
+
+echo 0 > tracing_on
+
+if ! grep -q "changed:" events/sched/sched_waking/hist; then
+    fail "Failed to create onchange action inter-event histogram"
+fi
+
+if ! grep -q "comm=ping" snapshot; then
+    fail "Failed to create snapshot action inter-event histogram"
+fi
+
+echo '!hist:keys=comm:newprio=prio:onchange($newprio).save(comm,prio):onchange($newprio).snapshot() if comm=="ping"' >> events/sched/sched_waking/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc
new file mode 100644
index 000000000000..c2a8ab01e13b
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-eprobe.tc
@@ -0,0 +1,53 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger eprobe on synthetic event
+# requires: dynamic_events synthetic_events events/syscalls/sys_enter_openat/hist "e[:[<group>/][<event>]] <attached-group>.<attached-event> [<args>]":README
+
+echo 0 > events/enable
+
+clear_dynamic_events
+
+SYSTEM="syscalls"
+START="sys_enter_openat"
+END="sys_exit_openat"
+FIELD="filename"
+SYNTH="synth_open"
+EPROBE="eprobe_open"
+
+echo "$SYNTH unsigned long filename; long ret;" > synthetic_events
+echo "hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger
+echo "hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger
+
+echo "e:$EPROBE synthetic/$SYNTH file=+0(\$filename):ustring ret=\$ret:s64" >> dynamic_events
+
+grep -q "$SYNTH" dynamic_events
+grep -q "$EPROBE" dynamic_events
+test -d events/synthetic/$SYNTH
+test -d events/eprobes/$EPROBE
+
+echo 1 > events/eprobes/$EPROBE/enable
+ls
+echo 0 > events/eprobes/$EPROBE/enable
+
+content=`grep '^ *ls-' trace | grep 'file='`
+nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."'` || true
+
+if [ -z "$content" ]; then
+	exit_fail
+fi
+
+if [ ! -z "$nocontent" ]; then
+	exit_fail
+fi
+
+echo "-:$EPROBE" >> dynamic_events
+echo '!'"hist:keys=common_pid:filename=\$__arg__1,ret=ret:onmatch($SYSTEM.$START).trace($SYNTH,\$filename,\$ret)" > events/$SYSTEM/$END/trigger
+echo '!'"hist:keys=common_pid:__arg__1=$FIELD" > events/$SYSTEM/$START/trigger
+echo '!'"$SYNTH u64 filename; s64 ret;" >> synthetic_events
+
+! grep -q "$SYNTH" dynamic_events
+! grep -q "$EPROBE" dynamic_events
+! test -d events/synthetic/$SYNTH
+! test -d events/eprobes/$EPROBE
+
+clear_trace
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc
new file mode 100644
index 000000000000..a152b558b40a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-createremove.tc
@@ -0,0 +1,34 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test synthetic event create remove
+# requires: set_event synthetic_events
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
+if [ ! -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to create wakeup_latency synthetic event"
+fi
+
+reset_trigger
+
+echo "Test remove synthetic event"
+echo '!wakeup_latency  u64 lat pid_t pid char comm[16]' >> synthetic_events
+if [ -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to delete wakeup_latency synthetic event"
+fi
+
+reset_trigger
+
+echo "Test create synthetic event with an error"
+echo 'wakeup_latency  u64 lat pid_t pid char' > synthetic_events > /dev/null
+if [ -d events/synthetic/wakeup_latency ]; then
+    fail "Created wakeup_latency synthetic event with an invalid format"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-dynstring.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-dynstring.tc
new file mode 100644
index 000000000000..174376ddbc6c
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-dynstring.tc
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger trace action with dynamic string param
+# requires: set_event synthetic_events events/sched/sched_process_exec/hist "' >> synthetic_events":README ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'ping_test_latency u64 lat; char filename[]' > synthetic_events
+if [ ! -d events/synthetic/ping_test_latency ]; then
+    fail "Failed to create ping_test_latency synthetic event"
+fi
+
+echo "Test create histogram for synthetic event using trace action and dynamic strings"
+echo "Test histogram dynamic string variables,simple expression support and trace action"
+
+echo 'hist:key=pid:filenamevar=filename:ts0=common_timestamp.usecs' > events/sched/sched_process_exec/trigger
+echo 'hist:key=pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_process_exec).ping_test_latency($lat,$filenamevar) if comm == "ping"' > events/sched/sched_process_exit/trigger
+echo 'hist:keys=filename,lat:sort=filename,lat' > events/synthetic/ping_test_latency/trigger
+
+ping $LOCALHOST -c 5
+
+if ! grep -q "ping" events/synthetic/ping_test_latency/hist; then
+    fail "Failed to create dynamic string trace action inter-event histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack-legacy.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack-legacy.tc
new file mode 100644
index 000000000000..d0cd91a93069
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack-legacy.tc
@@ -0,0 +1,24 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger trace action with dynamic string param (legacy stack)
+# requires: set_event synthetic_events events/sched/sched_process_exec/hist "long[] stack' >> synthetic_events":README
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event with stack"
+
+# Test the old stacktrace keyword (for backward compatibility)
+echo 's:wake_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
+echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=stacktrace  if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
+echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger
+echo 1 > events/synthetic/wake_lat/enable
+sleep 1
+
+if ! grep -q "=>.*sched" trace; then
+    fail "Failed to create synthetic event with stack"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack.tc
new file mode 100644
index 000000000000..8f1cc9a86a06
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-stack.tc
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger trace action with dynamic string param
+# requires: set_event synthetic_events events/sched/sched_process_exec/hist "can be any field, or the special string 'common_stacktrace'":README
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event with stack"
+
+echo 's:wake_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
+echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=common_stacktrace  if prev_state == 1||prev_state == 2' >> events/sched/sched_switch/trigger
+echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(wake_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger
+echo 1 > events/synthetic/wake_lat/enable
+sleep 1
+
+if ! grep -q "=>.*sched" trace; then
+    fail "Failed to create synthetic event with stack"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc
new file mode 100644
index 000000000000..366f1f3ad906
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic-event-syntax.tc
@@ -0,0 +1,81 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test synthetic_events syntax parser
+# requires: set_event synthetic_events
+
+do_reset() {
+    reset_trigger
+    echo > set_event
+    clear_trace
+}
+
+fail() { #msg
+    do_reset
+    echo $1
+    exit_fail
+}
+
+reset_tracer
+do_reset
+
+echo "Test synthetic_events syntax parser"
+
+echo > synthetic_events
+
+# synthetic event must have a field
+! echo "myevent" >> synthetic_events
+echo "myevent u64 var1" >> synthetic_events
+
+# synthetic event must be found in synthetic_events
+grep "myevent[[:space:]]u64 var1" synthetic_events
+
+# it is not possible to add same name event
+! echo "myevent u64 var2" >> synthetic_events
+
+# make sure !synthetic event doesn't require a field
+echo "!myevent" >> synthetic_events
+echo "myevent u64 var1" >> synthetic_events
+
+# Non-append open will cleanup all events and add new one
+echo "myevent u64 var2" > synthetic_events
+
+# multiple fields with different spaces
+echo "myevent u64 var1; u64 var2;" > synthetic_events
+grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
+echo "myevent u64 var1 ; u64 var2 ;" > synthetic_events
+grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
+echo "myevent u64 var1 ;u64 var2" > synthetic_events
+grep "myevent[[:space:]]u64 var1; u64 var2" synthetic_events
+
+# test field types
+echo "myevent u32 var" > synthetic_events
+echo "myevent u16 var" > synthetic_events
+echo "myevent u8 var" > synthetic_events
+echo "myevent s64 var" > synthetic_events
+echo "myevent s32 var" > synthetic_events
+echo "myevent s16 var" > synthetic_events
+echo "myevent s8 var" > synthetic_events
+
+echo "myevent char var" > synthetic_events
+echo "myevent int var" > synthetic_events
+echo "myevent long var" > synthetic_events
+echo "myevent pid_t var" > synthetic_events
+
+echo "myevent unsigned char var" > synthetic_events
+echo "myevent unsigned int var" > synthetic_events
+echo "myevent unsigned long var" > synthetic_events
+grep "myevent[[:space:]]unsigned long var" synthetic_events
+
+# test string type
+echo "myevent char var[10]" > synthetic_events
+grep "myevent[[:space:]]char\[10\] var" synthetic_events
+
+if grep -q 'long\[\]' README; then
+  # test stacktrace type
+  echo "myevent unsigned long[] var" > synthetic_events
+  grep "myevent[[:space:]]unsigned long\[\] var" synthetic_events
+fi
+
+do_reset
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
new file mode 100644
index 000000000000..b927ee54c02d
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-synthetic_event_syntax_errors.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test synthetic_events syntax parser errors
+# requires: synthetic_events error_log "' >> synthetic_events":README
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'synthetic_events' "$1" 'synthetic_events'
+}
+
+check_dyn_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'synthetic_events' "$1" 'dynamic_events'
+}
+
+check_error 'myevent ^chr arg'			# INVALID_TYPE
+check_error 'myevent ^unsigned arg'		# INCOMPLETE_TYPE
+
+check_error 'myevent char ^str]; int v'		# BAD_NAME
+check_error '^mye-vent char str[]'		# BAD_NAME
+check_error 'myevent char ^st-r[]'		# BAD_NAME
+
+check_error 'myevent char str;^[]'		# INVALID_FIELD
+check_error 'myevent char str; ^int'		# INVALID_FIELD
+
+check_error 'myevent char ^str[; int v'		# INVALID_ARRAY_SPEC
+check_error 'myevent char ^str[kdjdk]'		# INVALID_ARRAY_SPEC
+check_error 'myevent char ^str[257]'		# INVALID_ARRAY_SPEC
+
+check_error '^mye;vent char str[]'		# INVALID_CMD
+check_error '^myevent ; char str[]'		# INVALID_CMD
+check_error '^myevent; char str[]'		# INVALID_CMD
+check_error '^myevent ;char str[]'		# INVALID_CMD
+check_error '^; char str[]'			# INVALID_CMD
+check_error '^;myevent char str[]'		# INVALID_CMD
+check_error '^myevent'				# INVALID_CMD
+
+check_dyn_error '^s:junk/myevent char str['	# INVALID_DYN_CMD
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc
new file mode 100644
index 000000000000..d7312047ce28
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/inter-event/trigger-trace-action-hist.tc
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test inter-event histogram trigger trace action
+# requires: set_event synthetic_events events/sched/sched_process_fork/hist "trace(<synthetic_event>":README ping:program
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test create synthetic event"
+
+echo 'wakeup_latency  u64 lat pid_t pid char comm[16]' > synthetic_events
+if [ ! -d events/synthetic/wakeup_latency ]; then
+    fail "Failed to create wakeup_latency synthetic event"
+fi
+
+echo "Test create histogram for synthetic event using trace action"
+echo "Test histogram variables,simple expression support and trace action"
+
+echo 'hist:keys=pid:ts0=common_timestamp.usecs if comm=="ping"' > events/sched/sched_wakeup/trigger
+echo 'hist:keys=next_pid:wakeup_lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_wakeup).trace(wakeup_latency,$wakeup_lat,next_pid,next_comm) if next_comm=="ping"' > events/sched/sched_switch/trigger
+echo 'hist:keys=comm,pid,lat:wakeup_lat=lat:sort=lat' > events/synthetic/wakeup_latency/trigger
+
+ping $LOCALHOST -c 5
+
+if ! grep -q "ping" events/synthetic/wakeup_latency/hist; then
+    fail "Failed to create trace action inter-event histogram"
+fi
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc
new file mode 100644
index 000000000000..c226acee74bf
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc
@@ -0,0 +1,45 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test event enable/disable trigger
+# requires: set_event events/sched/sched_process_fork/trigger
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+FEATURE=`grep enable_event events/sched/sched_process_fork/trigger`
+if [ -z "$FEATURE" ]; then
+    echo "event enable/disable trigger is not supported"
+    exit_unsupported
+fi
+
+echo "Test enable_event trigger"
+echo 0 > events/sched/sched_switch/enable
+echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
+( echo "forked")
+if [ `cat events/sched/sched_switch/enable` != '1*' ]; then
+    fail "enable_event trigger on sched_process_fork did not work"
+fi
+
+reset_trigger
+
+echo "Test disable_event trigger"
+echo 1 > events/sched/sched_switch/enable
+echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
+( echo "forked")
+if [ `cat events/sched/sched_switch/enable` != '0*' ]; then
+    fail "disable_event trigger on sched_process_fork did not work"
+fi
+
+reset_trigger
+
+echo "Test semantic error for event enable/disable trigger"
+! echo 'enable_event:nogroup:noevent' > events/sched/sched_process_fork/trigger
+! echo 'disable_event+1' > events/sched/sched_process_fork/trigger
+echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
+! echo 'enable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
+! echo 'disable_event:sched:sched_switch' > events/sched/sched_process_fork/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc
new file mode 100644
index 000000000000..d9a198cb0f81
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test trigger filter
+# requires: set_event events/sched/sched_process_fork/trigger
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test trigger filter"
+echo 1 > tracing_on
+echo 'traceoff if child_pid == 0' > events/sched/sched_process_fork/trigger
+( echo "forked")
+if [ `cat tracing_on` -ne 1 ]; then
+    fail "traceoff trigger on sched_process_fork did not work"
+fi
+
+reset_trigger
+
+echo "Test semantic error for trigger filter"
+! echo 'traceoff if a' > events/sched/sched_process_fork/trigger
+! echo 'traceoff if common_pid=0' > events/sched/sched_process_fork/trigger
+! echo 'traceoff if common_pid==b' > events/sched/sched_process_fork/trigger
+echo 'traceoff if common_pid == 0' > events/sched/sched_process_fork/trigger
+echo '!traceoff' > events/sched/sched_process_fork/trigger
+! echo 'traceoff if common_pid == child_pid' > events/sched/sched_process_fork/trigger
+echo 'traceoff if common_pid <= 0' > events/sched/sched_process_fork/trigger
+echo '!traceoff' > events/sched/sched_process_fork/trigger
+echo 'traceoff if common_pid >= 0' > events/sched/sched_process_fork/trigger
+echo '!traceoff' > events/sched/sched_process_fork/trigger
+echo 'traceoff if parent_pid >= 0 && child_pid >= 0' > events/sched/sched_process_fork/trigger
+echo '!traceoff' > events/sched/sched_process_fork/trigger
+echo 'traceoff if parent_pid >= 0 || child_pid >= 0' > events/sched/sched_process_fork/trigger
+echo '!traceoff' > events/sched/sched_process_fork/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc
new file mode 100644
index 000000000000..0ebda2068a00
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-expressions.tc
@@ -0,0 +1,64 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram expression parsing
+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist error_log "<var1>=<field|var_ref|numeric_literal>":README
+# flags: instance
+
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+test_hist_expr() { # test_name expression expected_val
+    trigger="events/sched/sched_process_fork/trigger"
+
+    reset_trigger_file $trigger
+
+    echo "Test hist trigger expressions - $1"
+
+    echo "hist:keys=common_pid:x=$2" > $trigger
+
+    for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+
+    actual=`grep -o 'x=[[:digit:]]*' $trigger | awk -F= '{ print $2 }'`
+
+    if [ $actual != $3 ]; then
+        fail "Failed hist trigger expression evaluation: Expression: $2 Expected: $3, Actual: $actual"
+    fi
+
+    reset_trigger_file $trigger
+}
+
+check_error() { # test_name command-with-error-pos-by-^
+    trigger="events/sched/sched_process_fork/trigger"
+
+    echo "Test hist trigger expressions - $1"
+    ftrace_errlog_check 'hist:sched:sched_process_fork' "$2" $trigger
+}
+
+test_hist_expr "Variable assignment" "123" "123"
+
+test_hist_expr "Subtraction not associative" "16-8-4-2" "2"
+
+test_hist_expr "Division not associative" "64/8/4/2" "1"
+
+test_hist_expr "Same precedence operators (+,-) evaluated left to right" "16-8+4+2" "14"
+
+test_hist_expr "Same precedence operators (*,/) evaluated left to right" "4*3/2*2" "12"
+
+test_hist_expr "Multiplication evaluated before addition/subtraction" "4+3*2-2" "8"
+
+test_hist_expr "Division evaluated before addition/subtraction" "4+6/2-2" "5"
+
+# err pos for "too many subexpressions" is dependent on where
+# the last subexpression was detected. This can vary depending
+# on how the expression tree was generated.
+check_error "Too many subexpressions" 'hist:keys=common_pid:x=32+^10*3/20-4'
+check_error "Too many subexpressions" 'hist:keys=common_pid:x=^1+2+3+4+5'
+
+check_error "Unary minus not supported in subexpression" 'hist:keys=common_pid:x=-(^1)+2'
+
+check_error "Division by zero" 'hist:keys=common_pid:x=3/^0'
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc
new file mode 100644
index 000000000000..717898894ef7
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc
@@ -0,0 +1,50 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram modifiers
+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram with execname modifier"
+
+echo 'hist:keys=common_pid.execname' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+COMM=`cat /proc/$$/comm`
+grep "common_pid: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
+    fail "execname modifier on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with hex modifier"
+
+echo 'hist:keys=parent_pid.hex' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+# Note that $$ is the parent pid. $PID is current PID.
+HEX=`printf %x $PID`
+grep "parent_pid: $HEX" events/sched/sched_process_fork/hist > /dev/null || \
+    fail "hex modifier on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with syscall modifier"
+
+echo 'hist:keys=id.syscall' > events/raw_syscalls/sys_exit/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep "id: \(unknown_\|sys_\)" events/raw_syscalls/sys_exit/hist > /dev/null || \
+    fail "syscall modifier on raw_syscalls/sys_exit did not work"
+
+
+reset_trigger
+
+echo "Test histogram with log2 modifier"
+
+echo 'hist:keys=bytes_req.log2' > events/kmem/kmalloc/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep 'bytes_req: ~ 2^[0-9]*' events/kmem/kmalloc/hist > /dev/null || \
+    fail "log2 modifier on kmem/kmalloc did not work"
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-poll.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-poll.tc
new file mode 100644
index 000000000000..8d275e3238d9
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-poll.tc
@@ -0,0 +1,74 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test poll wait on histogram
+# requires: set_event events/sched/sched_process_free/trigger events/sched/sched_process_free/hist
+# flags: instance
+
+POLL=${FTRACETEST_ROOT}/poll
+
+if [ ! -x ${POLL} ]; then
+  echo "poll program is not compiled!"
+  exit_unresolved
+fi
+
+EVENT=events/sched/sched_process_free/
+
+# Check poll ops is supported. Before implementing poll on hist file, it
+# returns soon with POLLIN | POLLOUT, but not POLLPRI.
+
+# This must wait >1 sec and return 1 (timeout).
+set +e
+${POLL} -I -t 1000 ${EVENT}/hist
+ret=$?
+set -e
+if [ ${ret} != 1 ]; then
+  echo "poll on hist file is not supported"
+  exit_unsupported
+fi
+
+# Test POLLIN
+echo > trace
+echo 'hist:key=comm if comm =="sleep"' > ${EVENT}/trigger
+echo 1 > ${EVENT}/enable
+
+# This sleep command will exit after 2 seconds.
+sleep 2 &
+BGPID=$!
+# if timeout happens, poll returns 1.
+${POLL} -I -t 4000 ${EVENT}/hist
+echo 0 > tracing_on
+
+if [ -d /proc/${BGPID} ]; then
+  echo "poll exits too soon"
+  kill -KILL ${BGPID} ||:
+  exit_fail
+fi
+
+if ! grep -qw "sleep" trace; then
+  echo "poll exits before event happens"
+  exit_fail
+fi
+
+# Test POLLPRI
+echo > trace
+echo 1 > tracing_on
+
+# This sleep command will exit after 2 seconds.
+sleep 2 &
+BGPID=$!
+# if timeout happens, poll returns 1.
+${POLL} -P -t 4000 ${EVENT}/hist
+echo 0 > tracing_on
+
+if [ -d /proc/${BGPID} ]; then
+  echo "poll exits too soon"
+  kill -KILL ${BGPID} ||:
+  exit_fail
+fi
+
+if ! grep -qw "sleep" trace; then
+  echo "poll exits before event happens"
+  exit_fail
+fi
+
+exit_pass
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc
new file mode 100644
index 000000000000..52cfe7828e8a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram parser errors
+# requires: set_event events/kmem/kmalloc/trigger events/kmem/kmalloc/hist error_log
+
+check_error() { # command-with-error-pos-by-^
+    ftrace_errlog_check 'hist:kmem:kmalloc' "$1" 'events/kmem/kmalloc/trigger'
+}
+
+check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid,^junk'	# INVALID_SORT_FIELD
+check_error 'hist:keys=common_pid:vals=bytes_req:^sort='		# EMPTY_ASSIGNMENT
+check_error 'hist:keys=common_pid:vals=bytes_req:^sort=common_pid,'	# EMPTY_SORT_FIELD
+check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid.^junk'	# INVALID_SORT_MODIFIER
+check_error 'hist:keys=common_pid:vals=bytes_req,bytes_alloc:^sort=common_pid,bytes_req,bytes_alloc'	# TOO_MANY_SORT_FIELDS
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
new file mode 100644
index 000000000000..adae72665500
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
@@ -0,0 +1,76 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test histogram trigger
+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram basic trigger"
+
+echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep parent_pid events/sched/sched_process_fork/hist > /dev/null || \
+    fail "hist trigger on sched_process_fork did not work"
+grep child events/sched/sched_process_fork/hist > /dev/null || \
+    fail "hist trigger on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with compound keys"
+
+echo 'hist:keys=parent_pid,child_pid' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep '^{ parent_pid:.*, child_pid:.*}' events/sched/sched_process_fork/hist > /dev/null || \
+    fail "compound keys on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with string key"
+
+echo 'hist:keys=parent_comm' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+COMM=`cat /proc/$$/comm`
+grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
+    fail "string key on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with sym modifier"
+
+echo 'hist:keys=call_site.sym' > events/kmem/kmalloc/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]* *}' events/kmem/kmalloc/hist > /dev/null || \
+    fail "sym modifier on kmalloc call_site did not work"
+
+reset_trigger
+
+echo "Test histogram with sym-offset modifier"
+
+echo 'hist:keys=call_site.sym-offset' > events/kmem/kmalloc/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep '{ call_site: \[[0-9a-f][0-9a-f]*\] [_a-zA-Z][_a-zA-Z]*+0x[0-9a-f][0-9a-f]*' events/kmem/kmalloc/hist > /dev/null || \
+    fail "sym-offset modifier on kmalloc call_site did not work"
+
+reset_trigger
+
+echo "Test histogram with sort key"
+
+echo 'hist:keys=parent_pid,child_pid:sort=child_pid.ascending' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+
+check_inc() {
+    while [ $# -gt 1 ]; do
+        [ $1 -gt $2 ] && return 1
+        shift 1
+    done
+    return 0
+}
+check_inc `grep -o "child_pid:[[:space:]]*[[:digit:]]*" \
+    events/sched/sched_process_fork/hist | cut -d: -f2 ` ||
+    fail "sort param on sched_process_fork did not work"
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc
new file mode 100644
index 000000000000..7129b52da947
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc
@@ -0,0 +1,44 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test multiple histogram triggers
+# requires: set_event events/sched/sched_process_fork/trigger events/sched/sched_process_fork/hist
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram multiple triggers"
+
+echo 'hist:keys=parent_pid:vals=child_pid' > events/sched/sched_process_fork/trigger
+echo 'hist:keys=parent_comm:vals=child_pid' >> events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep parent_pid events/sched/sched_process_fork/hist > /dev/null || \
+    fail "hist trigger on sched_process_fork did not work"
+grep child events/sched/sched_process_fork/hist > /dev/null || \
+    fail "hist trigger on sched_process_fork did not work"
+COMM=`cat /proc/$$/comm`
+grep "parent_comm: $COMM" events/sched/sched_process_fork/hist > /dev/null || \
+    fail "string key on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test histogram with its name"
+
+echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_fork/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep test_hist events/sched/sched_process_fork/hist > /dev/null || \
+    fail "named event on sched_process_fork did not work"
+
+echo "Test same named histogram on different events"
+
+echo 'hist:name=test_hist:keys=common_pid' > events/sched/sched_process_exit/trigger
+for i in `seq 1 10` ; do ( echo "forked" > /dev/null); done
+grep test_hist events/sched/sched_process_exit/hist > /dev/null || \
+    fail "named event on sched_process_fork did not work"
+
+diffs=`diff events/sched/sched_process_exit/hist events/sched/sched_process_fork/hist | wc -l`
+test $diffs -eq 0 || fail "Same name histograms are not same"
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc
new file mode 100644
index 000000000000..33f5bdee387f
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc
@@ -0,0 +1,36 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test snapshot-trigger
+# requires: set_event events/sched/sched_process_fork/trigger snapshot
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+FEATURE=`grep snapshot events/sched/sched_process_fork/trigger`
+if [ -z "$FEATURE" ]; then
+    echo "snapshot trigger is not supported"
+    exit_unsupported
+fi
+
+echo "Test snapshot trigger"
+echo 0 > snapshot
+echo 1 > events/sched/sched_process_fork/enable
+( echo "forked")
+echo 'snapshot:1' > events/sched/sched_process_fork/trigger
+( echo "forked")
+grep sched_process_fork snapshot > /dev/null || \
+    fail "snapshot trigger on sched_process_fork did not work"
+
+reset_trigger
+echo 0 > snapshot
+echo 0 > events/sched/sched_process_fork/enable
+
+echo "Test snapshot semantic errors"
+
+! echo "snapshot+1" > events/sched/sched_process_fork/trigger
+echo "snapshot" > events/sched/sched_process_fork/trigger
+! echo "snapshot" > events/sched/sched_process_fork/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
new file mode 100644
index 000000000000..320ea9b3c6cd
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
@@ -0,0 +1,33 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test stacktrace-trigger
+# requires: set_event events/sched/sched_process_fork/trigger
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
+if [ -z "$FEATURE" ]; then
+    echo "stacktrace trigger is not supported"
+    exit_unsupported
+fi
+
+echo "Test stacktrace trigger"
+echo 0 > trace
+echo 0 > options/stacktrace
+echo 'stacktrace' > events/sched/sched_process_fork/trigger
+( echo "forked")
+grep "<stack trace>" trace > /dev/null || \
+    fail "stacktrace trigger on sched_process_fork did not work"
+
+reset_trigger
+
+echo "Test stacktrace semantic errors"
+
+! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
+echo "stacktrace" > events/sched/sched_process_fork/trigger
+! echo "stacktrace" > events/sched/sched_process_fork/trigger
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
new file mode 100644
index 000000000000..68f3af9d9910
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-hist.tc
@@ -0,0 +1,19 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_marker trigger - test histogram trigger
+# requires: set_event events/ftrace/print/trigger events/ftrace/print/hist
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram trace_marker trigger"
+
+echo 'hist:keys=common_pid' > events/ftrace/print/trigger
+for i in `seq 1 10` ; do echo "hello" > trace_marker; done
+grep 'hitcount: *10$' events/ftrace/print/hist > /dev/null || \
+    fail "hist trigger did not trigger correct times on trace_marker"
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
new file mode 100644
index 000000000000..27da2dba9b9e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
@@ -0,0 +1,43 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_marker trigger - test snapshot trigger
+# requires: set_event snapshot events/ftrace/print/trigger
+# flags: instance
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+test_trace() {
+    file=$1
+    x=$2
+
+    cat $file | while read line; do
+	comment=`echo $line | sed -e 's/^#//'`
+	if [ "$line" != "$comment" ]; then
+	    continue
+	fi
+	echo "testing $line for >$x<"
+	match=`echo $line | sed -e "s/>$x<//"`
+	if [ "$line" = "$match" ]; then
+	    fail "$line does not have >$x< in it"
+	fi
+	x=$((x+2))
+    done
+}
+
+echo "Test snapshot trace_marker trigger"
+
+echo 'snapshot' > events/ftrace/print/trigger
+
+# make sure the snapshot is allocated
+
+grep -q 'Snapshot is allocated' snapshot
+
+for i in `seq 1 10` ; do echo "hello >$i<" > trace_marker; done
+
+test_trace trace 1
+test_trace snapshot 2
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
new file mode 100644
index 000000000000..531139f41e94
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic-kernel.tc
@@ -0,0 +1,27 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_marker trigger - test histogram with synthetic event against kernel event
+# requires: set_event synthetic_events events/sched/sched_waking events/ftrace/print/trigger events/ftrace/print/hist
+# flags:
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram kernel event to trace_marker latency histogram trigger"
+
+echo 'latency u64 lat' > synthetic_events
+echo 'hist:keys=pid:ts0=common_timestamp.usecs' > events/sched/sched_waking/trigger
+echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(sched.sched_waking).latency($lat)' > events/ftrace/print/trigger
+echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
+sleep 1
+echo "hello" > trace_marker
+
+grep 'hitcount: *1$' events/ftrace/print/hist > /dev/null || \
+    fail "hist trigger did not trigger correct times on trace_marker"
+
+grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
+    fail "hist trigger did not trigger "
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc
new file mode 100644
index 000000000000..cc99cbb06d5e
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-synthetic.tc
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_marker trigger - test histogram with synthetic event
+# requires: set_event synthetic_events events/ftrace/print/trigger events/ftrace/print/hist
+# flags:
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test histogram trace_marker to trace_marker latency histogram trigger"
+
+echo 'latency u64 lat' > synthetic_events
+echo 'hist:keys=common_pid:ts0=common_timestamp.usecs if buf == "start"' > events/ftrace/print/trigger
+echo 'hist:keys=common_pid:lat=common_timestamp.usecs-$ts0:onmatch(ftrace.print).latency($lat) if buf == "end"' >> events/ftrace/print/trigger
+echo 'hist:keys=common_pid,lat:sort=lat' > events/synthetic/latency/trigger
+echo -n "start" > trace_marker
+echo -n "end" > trace_marker
+
+cnt=`grep 'hitcount: *1$' events/ftrace/print/hist | wc -l`
+
+if [ $cnt -ne 2 ]; then
+    fail "hist trace_marker trigger did not trigger correctly"
+fi
+
+grep 'hitcount: *1$' events/synthetic/latency/hist > /dev/null || \
+    fail "hist trigger did not trigger "
+
+exit 0
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc
new file mode 100644
index 000000000000..9ca04678f4da
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc
@@ -0,0 +1,38 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: event trigger - test traceon/off trigger
+# requires: set_event events/sched/sched_process_fork/trigger
+
+fail() { #msg
+    echo $1
+    exit_fail
+}
+
+echo "Test traceoff trigger"
+echo 1 > tracing_on
+echo 'traceoff' > events/sched/sched_process_fork/trigger
+( echo "forked")
+if [ `cat tracing_on` -ne 0 ]; then
+    fail "traceoff trigger on sched_process_fork did not work"
+fi
+
+reset_trigger
+
+echo "Test traceon trigger"
+echo 0 > tracing_on
+echo 'traceon' > events/sched/sched_process_fork/trigger
+( echo "forked")
+if [ `cat tracing_on` -ne 1 ]; then
+    fail "traceoff trigger on sched_process_fork did not work"
+fi
+
+reset_trigger
+
+echo "Test semantic error for traceoff/on trigger"
+! echo 'traceoff:badparam' > events/sched/sched_process_fork/trigger
+! echo 'traceoff+0' > events/sched/sched_process_fork/trigger
+echo 'traceon' > events/sched/sched_process_fork/trigger
+! echo 'traceon' > events/sched/sched_process_fork/trigger
+! echo 'traceoff' > events/sched/sched_process_fork/trigger
+
+exit 0
diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index 6a1752956283..78ab2cd111f6 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -1,29 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0
 SUBDIRS := functional
 
 TEST_PROGS := run.sh
 
-.PHONY: all clean
-all:
-	for DIR in $(SUBDIRS); do $(MAKE) -C $$DIR $@ ; done
-
 include ../lib.mk
 
-override define RUN_TESTS
-	./run.sh
-endef
+all:
+	@for DIR in $(SUBDIRS); do		\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		if [ -e $$DIR/$(TEST_PROGS) ]; then \
+			rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/; \
+		fi \
+	done
 
 override define INSTALL_RULE
 	mkdir -p $(INSTALL_PATH)
 	install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
 
 	@for SUBDIR in $(SUBDIRS); do \
-		$(MAKE) -C $$SUBDIR INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
+		BUILD_TARGET=$(OUTPUT)/$$SUBDIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$SUBDIR INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
 	done;
 endef
 
-override define EMIT_TESTS
-	echo "./run.sh"
+override define CLEAN
+	@for DIR in $(SUBDIRS); do		\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+	done
 endef
-
-clean:
-	for DIR in $(SUBDIRS); do $(MAKE) -C $$DIR $@ ; done
diff --git a/tools/testing/selftests/futex/README b/tools/testing/selftests/futex/README
index 3224a049b196..f3926c33ed4c 100644
--- a/tools/testing/selftests/futex/README
+++ b/tools/testing/selftests/futex/README
@@ -27,7 +27,7 @@ o The build system shall remain as simple as possible, avoiding any archive or
 o Where possible, any helper functions or other package-wide code shall be
   implemented in header files, avoiding the need to compile intermediate object
   files.
-o External dependendencies shall remain as minimal as possible. Currently gcc
+o External dependencies shall remain as minimal as possible. Currently gcc
   and glibc are the only dependencies.
 o Tests return 0 for success and < 0 for failure.
 
@@ -59,4 +59,4 @@ o FIXME: decide on a sane test naming scheme.  Currently the tests are named
 Coding Style
 ------------
 o The Futex Test project adheres to the coding standards set forth by Linux
-  kernel as defined in the Linux source Documentation/CodingStyle.
+  kernel as defined in the Linux source Documentation/process/coding-style.rst.
diff --git a/tools/testing/selftests/futex/functional/.gitignore b/tools/testing/selftests/futex/functional/.gitignore
index a09f57061902..776ad658f75e 100644
--- a/tools/testing/selftests/futex/functional/.gitignore
+++ b/tools/testing/selftests/futex/functional/.gitignore
@@ -1,7 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+futex_numa_mpol
+futex_priv_hash
+futex_requeue
 futex_requeue_pi
 futex_requeue_pi_mismatched_ops
 futex_requeue_pi_signal_restart
+futex_wait
 futex_wait_private_mapped_file
 futex_wait_timeout
 futex_wait_uninitialized_heap
 futex_wait_wouldblock
+futex_waitv
+futex_numa
diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
index 9d6b75ef7b5d..490ace1f017e 100644
--- a/tools/testing/selftests/futex/functional/Makefile
+++ b/tools/testing/selftests/futex/functional/Makefile
@@ -1,25 +1,31 @@
-INCLUDES := -I../include -I../../
-CFLAGS := $(CFLAGS) -g -O2 -Wall -D_GNU_SOURCE -pthread $(INCLUDES)
-LDFLAGS := $(LDFLAGS) -pthread -lrt
+# SPDX-License-Identifier: GPL-2.0
+PKG_CONFIG ?= pkg-config
+LIBNUMA_TEST = $(shell sh -c "$(PKG_CONFIG) numa --atleast-version 2.0.16 > /dev/null 2>&1 && echo SUFFICIENT || echo NO")
 
-HEADERS := ../include/futextest.h
-TARGETS := \
+INCLUDES := -I../include -I../../ $(KHDR_INCLUDES)
+CFLAGS := $(CFLAGS) -g -O2 -Wall -pthread -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 $(INCLUDES) $(KHDR_INCLUDES) -DLIBNUMA_VER_$(LIBNUMA_TEST)=1
+LDLIBS := -lpthread -lrt -lnuma
+
+LOCAL_HDRS := \
+	../include/futextest.h \
+	../include/atomic.h
+TEST_GEN_PROGS := \
 	futex_wait_timeout \
 	futex_wait_wouldblock \
 	futex_requeue_pi \
 	futex_requeue_pi_signal_restart \
 	futex_requeue_pi_mismatched_ops \
 	futex_wait_uninitialized_heap \
-	futex_wait_private_mapped_file
-
-TEST_PROGS := $(TARGETS) run.sh
+	futex_wait_private_mapped_file \
+	futex_wait \
+	futex_requeue \
+	futex_priv_hash \
+	futex_numa_mpol \
+	futex_waitv \
+	futex_numa
 
-.PHONY: all clean
-all: $(TARGETS)
-
-$(TARGETS): $(HEADERS)
+TEST_PROGS := run.sh
 
+top_srcdir = ../../../../..
+DEFAULT_INSTALL_HDR_PATH := 1
 include ../../lib.mk
-
-clean:
-	rm -f $(TARGETS)
diff --git a/tools/testing/selftests/futex/functional/futex_numa.c b/tools/testing/selftests/futex/functional/futex_numa.c
new file mode 100644
index 000000000000..e0a33510ccb6
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_numa.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <pthread.h>
+#include <sys/shm.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <assert.h>
+#include "futextest.h"
+#include "futex2test.h"
+
+typedef u_int32_t u32;
+typedef int32_t   s32;
+typedef u_int64_t u64;
+
+static unsigned int fflags = (FUTEX2_SIZE_U32 | FUTEX2_PRIVATE);
+static int fnode = FUTEX_NO_NODE;
+
+/* fairly stupid test-and-set lock with a waiter flag */
+
+#define N_LOCK		0x0000001
+#define N_WAITERS	0x0001000
+
+struct futex_numa_32 {
+	union {
+		u64 full;
+		struct {
+			u32 val;
+			u32 node;
+		};
+	};
+};
+
+void futex_numa_32_lock(struct futex_numa_32 *lock)
+{
+	for (;;) {
+		struct futex_numa_32 new, old = {
+			.full = __atomic_load_n(&lock->full, __ATOMIC_RELAXED),
+		};
+
+		for (;;) {
+			new = old;
+			if (old.val == 0) {
+				/* no waiter, no lock -> first lock, set no-node */
+				new.node = fnode;
+			}
+			if (old.val & N_LOCK) {
+				/* contention, set waiter */
+				new.val |= N_WAITERS;
+			}
+			new.val |= N_LOCK;
+
+			/* nothing changed, ready to block */
+			if (old.full == new.full)
+				break;
+
+			/*
+			 * Use u64 cmpxchg to set the futex value and node in a
+			 * consistent manner.
+			 */
+			if (__atomic_compare_exchange_n(&lock->full,
+							&old.full, new.full,
+							/* .weak */ false,
+							__ATOMIC_ACQUIRE,
+							__ATOMIC_RELAXED)) {
+
+				/* if we just set N_LOCK, we own it */
+				if (!(old.val & N_LOCK))
+					return;
+
+				/* go block */
+				break;
+			}
+		}
+
+		futex2_wait(lock, new.val, fflags, NULL, 0);
+	}
+}
+
+void futex_numa_32_unlock(struct futex_numa_32 *lock)
+{
+	u32 val = __atomic_sub_fetch(&lock->val, N_LOCK, __ATOMIC_RELEASE);
+	assert((s32)val >= 0);
+	if (val & N_WAITERS) {
+		int woken = futex2_wake(lock, 1, fflags);
+		assert(val == N_WAITERS);
+		if (!woken) {
+			__atomic_compare_exchange_n(&lock->val, &val, 0U,
+						    false, __ATOMIC_RELAXED,
+						    __ATOMIC_RELAXED);
+		}
+	}
+}
+
+static long nanos = 50000;
+
+struct thread_args {
+	pthread_t tid;
+	volatile int * done;
+	struct futex_numa_32 *lock;
+	int val;
+	int *val1, *val2;
+	int node;
+};
+
+static void *threadfn(void *_arg)
+{
+	struct thread_args *args = _arg;
+	struct timespec ts = {
+		.tv_nsec = nanos,
+	};
+	int node;
+
+	while (!*args->done) {
+
+		futex_numa_32_lock(args->lock);
+		args->val++;
+
+		assert(*args->val1 == *args->val2);
+		(*args->val1)++;
+		nanosleep(&ts, NULL);
+		(*args->val2)++;
+
+		node = args->lock->node;
+		futex_numa_32_unlock(args->lock);
+
+		if (node != args->node) {
+			args->node = node;
+			printf("node: %d\n", node);
+		}
+
+		nanosleep(&ts, NULL);
+	}
+
+	return NULL;
+}
+
+static void *contendfn(void *_arg)
+{
+	struct thread_args *args = _arg;
+
+	while (!*args->done) {
+		/*
+		 * futex2_wait() will take hb-lock, verify *var == val and
+		 * queue/abort.  By knowingly setting val 'wrong' this will
+		 * abort and thereby generate hb-lock contention.
+		 */
+		futex2_wait(&args->lock->val, ~0U, fflags, NULL, 0);
+		args->val++;
+	}
+
+	return NULL;
+}
+
+static volatile int done = 0;
+static struct futex_numa_32 lock = { .val = 0, };
+static int val1, val2;
+
+int main(int argc, char *argv[])
+{
+	struct thread_args *tas[512], *cas[512];
+	int c, t, threads = 2, contenders = 0;
+	int sleeps = 10;
+	int total = 0;
+
+	while ((c = getopt(argc, argv, "c:t:s:n:N::")) != -1) {
+		switch (c) {
+		case 'c':
+			contenders = atoi(optarg);
+			break;
+		case 't':
+			threads = atoi(optarg);
+			break;
+		case 's':
+			sleeps = atoi(optarg);
+			break;
+		case 'n':
+			nanos = atoi(optarg);
+			break;
+		case 'N':
+			fflags |= FUTEX2_NUMA;
+			if (optarg)
+				fnode = atoi(optarg);
+			break;
+		default:
+			exit(1);
+			break;
+		}
+	}
+
+	for (t = 0; t < contenders; t++) {
+		struct thread_args *args = calloc(1, sizeof(*args));
+		if (!args) {
+			perror("thread_args");
+			exit(-1);
+		}
+
+		args->done = &done;
+		args->lock = &lock;
+		args->val1 = &val1;
+		args->val2 = &val2;
+		args->node = -1;
+
+		if (pthread_create(&args->tid, NULL, contendfn, args)) {
+			perror("pthread_create");
+			exit(-1);
+		}
+
+		cas[t] = args;
+	}
+
+	for (t = 0; t < threads; t++) {
+		struct thread_args *args = calloc(1, sizeof(*args));
+		if (!args) {
+			perror("thread_args");
+			exit(-1);
+		}
+
+		args->done = &done;
+		args->lock = &lock;
+		args->val1 = &val1;
+		args->val2 = &val2;
+		args->node = -1;
+
+		if (pthread_create(&args->tid, NULL, threadfn, args)) {
+			perror("pthread_create");
+			exit(-1);
+		}
+
+		tas[t] = args;
+	}
+
+	sleep(sleeps);
+
+	done = true;
+
+	for (t = 0; t < threads; t++) {
+		struct thread_args *args = tas[t];
+
+		pthread_join(args->tid, NULL);
+		total += args->val;
+//		printf("tval: %d\n", args->val);
+	}
+	printf("total: %d\n", total);
+
+	if (contenders) {
+		total = 0;
+		for (t = 0; t < contenders; t++) {
+			struct thread_args *args = cas[t];
+
+			pthread_join(args->tid, NULL);
+			total += args->val;
+			//		printf("tval: %d\n", args->val);
+		}
+		printf("contenders: %d\n", total);
+	}
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/futex/functional/futex_numa_mpol.c b/tools/testing/selftests/futex/functional/futex_numa_mpol.c
new file mode 100644
index 000000000000..ab8555752137
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_numa_mpol.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <numa.h>
+#include <numaif.h>
+
+#include <linux/futex.h>
+#include <sys/mman.h>
+
+#include "futextest.h"
+#include "futex2test.h"
+#include "kselftest_harness.h"
+
+#define MAX_THREADS	64
+
+static pthread_barrier_t barrier_main;
+static pthread_t threads[MAX_THREADS];
+
+struct thread_args {
+	void *futex_ptr;
+	unsigned int flags;
+	int result;
+};
+
+static struct thread_args thread_args[MAX_THREADS];
+
+#ifndef FUTEX_NO_NODE
+#define FUTEX_NO_NODE (-1)
+#endif
+
+#ifndef FUTEX2_MPOL
+#define FUTEX2_MPOL	0x08
+#endif
+
+static void *thread_lock_fn(void *arg)
+{
+	struct thread_args *args = arg;
+	int ret;
+
+	pthread_barrier_wait(&barrier_main);
+	ret = futex2_wait(args->futex_ptr, 0, args->flags, NULL, 0);
+	args->result = ret;
+	return NULL;
+}
+
+static void create_max_threads(void *futex_ptr)
+{
+	int i, ret;
+
+	for (i = 0; i < MAX_THREADS; i++) {
+		thread_args[i].futex_ptr = futex_ptr;
+		thread_args[i].flags = FUTEX2_SIZE_U32 | FUTEX_PRIVATE_FLAG | FUTEX2_NUMA;
+		thread_args[i].result = 0;
+		ret = pthread_create(&threads[i], NULL, thread_lock_fn, &thread_args[i]);
+		if (ret)
+			ksft_exit_fail_msg("pthread_create failed\n");
+	}
+}
+
+static void join_max_threads(void)
+{
+	int i, ret;
+
+	for (i = 0; i < MAX_THREADS; i++) {
+		ret = pthread_join(threads[i], NULL);
+		if (ret)
+			ksft_exit_fail_msg("pthread_join failed for thread %d\n", i);
+	}
+}
+
+static void __test_futex(void *futex_ptr, int err_value, unsigned int futex_flags)
+{
+	int to_wake, ret, i, need_exit = 0;
+
+	pthread_barrier_init(&barrier_main, NULL, MAX_THREADS + 1);
+	create_max_threads(futex_ptr);
+	pthread_barrier_wait(&barrier_main);
+	to_wake = MAX_THREADS;
+
+	do {
+		ret = futex2_wake(futex_ptr, to_wake, futex_flags);
+
+		if (err_value) {
+			if (ret >= 0)
+				ksft_exit_fail_msg("futex2_wake(%d, 0x%x) should fail, but didn't\n",
+						   to_wake, futex_flags);
+
+			if (errno != err_value)
+				ksft_exit_fail_msg("futex2_wake(%d, 0x%x) expected error was %d, but returned %d (%s)\n",
+						   to_wake, futex_flags, err_value, errno, strerror(errno));
+
+			break;
+		}
+		if (ret < 0) {
+			ksft_exit_fail_msg("Failed futex2_wake(%d, 0x%x): %m\n",
+					   to_wake, futex_flags);
+		}
+		if (!ret)
+			usleep(50);
+		to_wake -= ret;
+
+	} while (to_wake);
+	join_max_threads();
+
+	for (i = 0; i < MAX_THREADS; i++) {
+		if (err_value && thread_args[i].result != -1) {
+			ksft_print_msg("Thread %d should fail but succeeded (%d)\n",
+				       i, thread_args[i].result);
+			need_exit = 1;
+		}
+		if (!err_value && thread_args[i].result != 0) {
+			ksft_print_msg("Thread %d failed (%d)\n", i, thread_args[i].result);
+			need_exit = 1;
+		}
+	}
+	if (need_exit)
+		ksft_exit_fail_msg("Aborting due to earlier errors.\n");
+}
+
+static void test_futex(void *futex_ptr, int err_value)
+{
+	__test_futex(futex_ptr, err_value, FUTEX2_SIZE_U32 | FUTEX_PRIVATE_FLAG | FUTEX2_NUMA);
+}
+
+static void test_futex_mpol(void *futex_ptr, int err_value)
+{
+	__test_futex(futex_ptr, err_value, FUTEX2_SIZE_U32 | FUTEX_PRIVATE_FLAG | FUTEX2_NUMA | FUTEX2_MPOL);
+}
+
+TEST(futex_numa_mpol)
+{
+	struct futex32_numa *futex_numa;
+	void *futex_ptr;
+	int mem_size;
+
+	mem_size = sysconf(_SC_PAGE_SIZE);
+	futex_ptr = mmap(NULL, mem_size * 2, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+	if (futex_ptr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap() for %d bytes failed\n", mem_size);
+
+	/* Create an invalid memory region for the "Memory out of range" test */
+	mprotect(futex_ptr + mem_size, mem_size, PROT_NONE);
+
+	futex_numa = futex_ptr;
+
+	ksft_print_msg("Regular test\n");
+	futex_numa->futex = 0;
+	futex_numa->numa = FUTEX_NO_NODE;
+	test_futex(futex_ptr, 0);
+
+	if (futex_numa->numa == FUTEX_NO_NODE)
+		ksft_exit_fail_msg("NUMA node is left uninitialized\n");
+
+	/* FUTEX2_NUMA futex must be 8-byte aligned */
+	ksft_print_msg("Mis-aligned futex\n");
+	test_futex(futex_ptr + mem_size - 4, EINVAL);
+
+	ksft_print_msg("Memory out of range\n");
+	test_futex(futex_ptr + mem_size, EFAULT);
+
+	futex_numa->numa = FUTEX_NO_NODE;
+	mprotect(futex_ptr, mem_size, PROT_READ);
+	ksft_print_msg("Memory, RO\n");
+	test_futex(futex_ptr, EFAULT);
+
+	mprotect(futex_ptr, mem_size, PROT_NONE);
+	ksft_print_msg("Memory, no access\n");
+	test_futex(futex_ptr, EFAULT);
+
+	mprotect(futex_ptr, mem_size, PROT_READ | PROT_WRITE);
+	ksft_print_msg("Memory back to RW\n");
+	test_futex(futex_ptr, 0);
+
+	ksft_test_result_pass("futex2 memory boundary tests passed\n");
+
+	/* MPOL test. Does not work as expected */
+#ifdef LIBNUMA_VER_SUFFICIENT
+	for (int i = 0; i < 4; i++) {
+		unsigned long nodemask;
+		int ret;
+
+		nodemask = 1 << i;
+		ret = mbind(futex_ptr, mem_size, MPOL_BIND, &nodemask,
+			    sizeof(nodemask) * 8, 0);
+		if (ret == 0) {
+			ret = numa_set_mempolicy_home_node(futex_ptr, mem_size, i, 0);
+			if (ret != 0)
+				ksft_exit_fail_msg("Failed to set home node: %m, %d\n", errno);
+
+			ksft_print_msg("Node %d test\n", i);
+			futex_numa->futex = 0;
+			futex_numa->numa = FUTEX_NO_NODE;
+
+			ret = futex2_wake(futex_ptr, 0, FUTEX2_SIZE_U32 | FUTEX_PRIVATE_FLAG | FUTEX2_NUMA | FUTEX2_MPOL);
+			if (ret < 0)
+				ksft_test_result_fail("Failed to wake 0 with MPOL: %m\n");
+			if (futex_numa->numa != i) {
+				ksft_exit_fail_msg("Returned NUMA node is %d expected %d\n",
+						   futex_numa->numa, i);
+			}
+		}
+	}
+	ksft_test_result_pass("futex2 MPOL hints test passed\n");
+#else
+	ksft_test_result_skip("futex2 MPOL hints test requires libnuma 2.0.16+\n");
+#endif
+	munmap(futex_ptr, mem_size * 2);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_priv_hash.c b/tools/testing/selftests/futex/functional/futex_priv_hash.c
new file mode 100644
index 000000000000..e8079d7c65e8
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_priv_hash.c
@@ -0,0 +1,270 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2025 Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <linux/prctl.h>
+#include <sys/prctl.h>
+
+#include "kselftest_harness.h"
+
+#define MAX_THREADS	64
+
+static pthread_barrier_t barrier_main;
+static pthread_mutex_t global_lock;
+static pthread_t threads[MAX_THREADS];
+static int counter;
+
+#ifndef PR_FUTEX_HASH
+#define PR_FUTEX_HASH			78
+# define PR_FUTEX_HASH_SET_SLOTS	1
+# define PR_FUTEX_HASH_GET_SLOTS	2
+#endif
+
+static int futex_hash_slots_set(unsigned int slots)
+{
+	return prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_SET_SLOTS, slots, 0);
+}
+
+static int futex_hash_slots_get(void)
+{
+	return prctl(PR_FUTEX_HASH, PR_FUTEX_HASH_GET_SLOTS);
+}
+
+static void futex_hash_slots_set_verify(int slots)
+{
+	int ret;
+
+	ret = futex_hash_slots_set(slots);
+	if (ret != 0) {
+		ksft_test_result_fail("Failed to set slots to %d: %m\n", slots);
+		ksft_finished();
+	}
+	ret = futex_hash_slots_get();
+	if (ret != slots) {
+		ksft_test_result_fail("Set %d slots but PR_FUTEX_HASH_GET_SLOTS returns: %d, %m\n",
+		       slots, ret);
+		ksft_finished();
+	}
+	ksft_test_result_pass("SET and GET slots %d passed\n", slots);
+}
+
+static void futex_hash_slots_set_must_fail(int slots)
+{
+	int ret;
+
+	ret = futex_hash_slots_set(slots);
+	ksft_test_result(ret < 0, "futex_hash_slots_set(%d)\n",
+			 slots);
+}
+
+static void *thread_return_fn(void *arg)
+{
+	return NULL;
+}
+
+static void *thread_lock_fn(void *arg)
+{
+	pthread_barrier_wait(&barrier_main);
+
+	pthread_mutex_lock(&global_lock);
+	counter++;
+	usleep(20);
+	pthread_mutex_unlock(&global_lock);
+	return NULL;
+}
+
+static void create_max_threads(void *(*thread_fn)(void *))
+{
+	int i, ret;
+
+	for (i = 0; i < MAX_THREADS; i++) {
+		ret = pthread_create(&threads[i], NULL, thread_fn, NULL);
+		if (ret)
+			ksft_exit_fail_msg("pthread_create failed: %m\n");
+	}
+}
+
+static void join_max_threads(void)
+{
+	int i, ret;
+
+	for (i = 0; i < MAX_THREADS; i++) {
+		ret = pthread_join(threads[i], NULL);
+		if (ret)
+			ksft_exit_fail_msg("pthread_join failed for thread %d\n", i);
+	}
+}
+
+#define SEC_IN_NSEC	1000000000
+#define MSEC_IN_NSEC	1000000
+
+static void futex_dummy_op(void)
+{
+	pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+	struct timespec timeout;
+	int ret;
+
+	pthread_mutex_lock(&lock);
+	clock_gettime(CLOCK_REALTIME, &timeout);
+	timeout.tv_nsec += 100 * MSEC_IN_NSEC;
+	if (timeout.tv_nsec >=  SEC_IN_NSEC) {
+		timeout.tv_nsec -= SEC_IN_NSEC;
+		timeout.tv_sec++;
+	}
+	ret = pthread_mutex_timedlock(&lock, &timeout);
+	if (ret == 0)
+		ksft_exit_fail_msg("Successfully locked an already locked mutex.\n");
+
+	if (ret != ETIMEDOUT)
+		ksft_exit_fail_msg("pthread_mutex_timedlock() did not timeout: %d.\n", ret);
+}
+
+static const char *test_msg_auto_create = "Automatic hash bucket init on thread creation.\n";
+static const char *test_msg_auto_inc = "Automatic increase with more than 16 CPUs\n";
+
+TEST(priv_hash)
+{
+	int futex_slots1, futex_slotsn, online_cpus;
+	pthread_mutexattr_t mutex_attr_pi;
+	int ret, retry = 20;
+
+	ret = pthread_mutexattr_init(&mutex_attr_pi);
+	ret |= pthread_mutexattr_setprotocol(&mutex_attr_pi, PTHREAD_PRIO_INHERIT);
+	ret |= pthread_mutex_init(&global_lock, &mutex_attr_pi);
+	if (ret != 0) {
+		ksft_exit_fail_msg("Failed to initialize pthread mutex.\n");
+	}
+	/* First thread, expect to be 0, not yet initialized */
+	ret = futex_hash_slots_get();
+	if (ret != 0)
+		ksft_exit_fail_msg("futex_hash_slots_get() failed: %d, %m\n", ret);
+
+	ksft_test_result_pass("Basic get slots and immutable status.\n");
+	ret = pthread_create(&threads[0], NULL, thread_return_fn, NULL);
+	if (ret != 0)
+		ksft_exit_fail_msg("pthread_create() failed: %d, %m\n", ret);
+
+	ret = pthread_join(threads[0], NULL);
+	if (ret != 0)
+		ksft_exit_fail_msg("pthread_join() failed: %d, %m\n", ret);
+
+	/* First thread, has to initialize private hash */
+	futex_slots1 = futex_hash_slots_get();
+	if (futex_slots1 <= 0) {
+		ksft_print_msg("Current hash buckets: %d\n", futex_slots1);
+		ksft_exit_fail_msg("%s", test_msg_auto_create);
+	}
+
+	ksft_test_result_pass("%s", test_msg_auto_create);
+
+	online_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+	ret = pthread_barrier_init(&barrier_main, NULL, MAX_THREADS + 1);
+	if (ret != 0)
+		ksft_exit_fail_msg("pthread_barrier_init failed: %m.\n");
+
+	ret = pthread_mutex_lock(&global_lock);
+	if (ret != 0)
+		ksft_exit_fail_msg("pthread_mutex_lock failed: %m.\n");
+
+	counter = 0;
+	create_max_threads(thread_lock_fn);
+	pthread_barrier_wait(&barrier_main);
+
+	/*
+	 * The current default size of hash buckets is 16. The auto increase
+	 * works only if more than 16 CPUs are available.
+	 */
+	ksft_print_msg("Online CPUs: %d\n", online_cpus);
+	if (online_cpus > 16) {
+retry_getslots:
+		futex_slotsn = futex_hash_slots_get();
+		if (futex_slotsn < 0 || futex_slots1 == futex_slotsn) {
+			retry--;
+			/*
+			 * Auto scaling on thread creation can be slightly delayed
+			 * because it waits for a RCU grace period twice. The new
+			 * private hash is assigned upon the first futex operation
+			 * after grace period.
+			 * To cover all this for testing purposes the function
+			 * below will acquire a lock and acquire it again with a
+			 * 100ms timeout which must timeout. This ensures we
+			 * sleep for 100ms and issue a futex operation.
+			 */
+			if (retry > 0) {
+				futex_dummy_op();
+				goto retry_getslots;
+			}
+			ksft_print_msg("Expected increase of hash buckets but got: %d -> %d\n",
+				       futex_slots1, futex_slotsn);
+			ksft_exit_fail_msg("%s", test_msg_auto_inc);
+		}
+		ksft_test_result_pass("%s", test_msg_auto_inc);
+	} else {
+		ksft_test_result_skip("%s", test_msg_auto_inc);
+	}
+	ret = pthread_mutex_unlock(&global_lock);
+
+	/* Once the user changes it, it has to be what is set */
+	futex_hash_slots_set_verify(2);
+	futex_hash_slots_set_verify(4);
+	futex_hash_slots_set_verify(8);
+	futex_hash_slots_set_verify(32);
+	futex_hash_slots_set_verify(16);
+
+	ret = futex_hash_slots_set(15);
+	ksft_test_result(ret < 0, "Use 15 slots\n");
+
+	futex_hash_slots_set_verify(2);
+	join_max_threads();
+	ksft_test_result(counter == MAX_THREADS, "Created and waited for %d of %d threads\n",
+			 counter, MAX_THREADS);
+	counter = 0;
+	/* Once the user set something, auto resize must be disabled */
+	ret = pthread_barrier_init(&barrier_main, NULL, MAX_THREADS);
+
+	create_max_threads(thread_lock_fn);
+	join_max_threads();
+
+	ret = futex_hash_slots_get();
+	ksft_test_result(ret == 2, "No more auto-resize after manual setting, got %d\n",
+			 ret);
+
+	futex_hash_slots_set_must_fail(1 << 29);
+	futex_hash_slots_set_verify(4);
+
+	/*
+	 * Once the global hash has been requested, then this requested can not
+	 * be undone.
+	 */
+	ret = futex_hash_slots_set(0);
+	ksft_test_result(ret == 0, "Global hash request\n");
+	if (ret != 0)
+		return;
+
+	futex_hash_slots_set_must_fail(4);
+	futex_hash_slots_set_must_fail(8);
+	futex_hash_slots_set_must_fail(8);
+	futex_hash_slots_set_must_fail(0);
+	futex_hash_slots_set_must_fail(6);
+
+	ret = pthread_barrier_init(&barrier_main, NULL, MAX_THREADS);
+	if (ret != 0)
+		ksft_exit_fail_msg("pthread_barrier_init failed: %m\n");
+
+	create_max_threads(thread_lock_fn);
+	join_max_threads();
+
+	ret = futex_hash_slots_get();
+	ksft_test_result(ret == 0, "Continue to use global hash\n");
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_requeue.c b/tools/testing/selftests/futex/functional/futex_requeue.c
new file mode 100644
index 000000000000..35d4be23db5d
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_requeue.c
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright Collabora Ltd., 2021
+ *
+ * futex cmp requeue test by André Almeida <andrealmeid@collabora.com>
+ */
+
+#include <pthread.h>
+#include <limits.h>
+
+#include "futextest.h"
+#include "kselftest_harness.h"
+
+#define timeout_ns  30000000
+#define WAKE_WAIT_US 10000
+
+volatile futex_t *f1;
+
+void *waiterfn(void *arg)
+{
+	struct timespec to;
+
+	to.tv_sec = 0;
+	to.tv_nsec = timeout_ns;
+
+	if (futex_wait(f1, *f1, &to, 0))
+		printf("waiter failed errno %d\n", errno);
+
+	return NULL;
+}
+
+TEST(requeue_single)
+{
+	volatile futex_t _f1 = 0;
+	volatile futex_t f2 = 0;
+	pthread_t waiter[10];
+	int res;
+
+	f1 = &_f1;
+
+	/*
+	 * Requeue a waiter from f1 to f2, and wake f2.
+	 */
+	if (pthread_create(&waiter[0], NULL, waiterfn, NULL))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	ksft_print_dbg_msg("Requeuing 1 futex from f1 to f2\n");
+	res = futex_cmp_requeue(f1, 0, &f2, 0, 1, 0);
+	if (res != 1)
+		ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+
+	ksft_print_dbg_msg("Waking 1 futex at f2\n");
+	res = futex_wake(&f2, 1, 0);
+	if (res != 1) {
+		ksft_test_result_fail("futex_requeue simple returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_requeue simple succeeds\n");
+	}
+}
+
+TEST(requeue_multiple)
+{
+	volatile futex_t _f1 = 0;
+	volatile futex_t f2 = 0;
+	pthread_t waiter[10];
+	int res, i;
+
+	f1 = &_f1;
+
+	/*
+	 * Create 10 waiters at f1. At futex_requeue, wake 3 and requeue 7.
+	 * At futex_wake, wake INT_MAX (should be exactly 7).
+	 */
+	for (i = 0; i < 10; i++) {
+		if (pthread_create(&waiter[i], NULL, waiterfn, NULL))
+			ksft_exit_fail_msg("pthread_create failed\n");
+	}
+
+	usleep(WAKE_WAIT_US);
+
+	ksft_print_dbg_msg("Waking 3 futexes at f1 and requeuing 7 futexes from f1 to f2\n");
+	res = futex_cmp_requeue(f1, 0, &f2, 3, 7, 0);
+	if (res != 10) {
+		ksft_test_result_fail("futex_requeue many returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	}
+
+	ksft_print_dbg_msg("Waking INT_MAX futexes at f2\n");
+	res = futex_wake(&f2, INT_MAX, 0);
+	if (res != 7) {
+		ksft_test_result_fail("futex_requeue many returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_requeue many succeeds\n");
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi.c b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
index 3da06ad23996..46d2858e15a8 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2006-2008
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      This test excercises the futex syscall op codes needed for requeuing
  *      priority inheritance aware POSIX condition variables and mutexes.
@@ -21,6 +17,8 @@
  *
  *****************************************************************************/
 
+#define _GNU_SOURCE
+
 #include <errno.h>
 #include <limits.h>
 #include <pthread.h>
@@ -28,9 +26,10 @@
 #include <stdlib.h>
 #include <signal.h>
 #include <string.h>
+
 #include "atomic.h"
 #include "futextest.h"
-#include "logging.h"
+#include "kselftest_harness.h"
 
 #define MAX_WAKE_ITERS 1000
 #define THREAD_MAX 10
@@ -43,12 +42,6 @@ futex_t f1 = FUTEX_INITIALIZER;
 futex_t f2 = FUTEX_INITIALIZER;
 futex_t wake_complete = FUTEX_INITIALIZER;
 
-/* Test option defaults */
-static long timeout_ns;
-static int broadcast;
-static int owner;
-static int locked;
-
 struct thread_arg {
 	long id;
 	struct timespec *timeout;
@@ -57,18 +50,73 @@ struct thread_arg {
 };
 #define THREAD_ARG_INITIALIZER { 0, NULL, 0, 0 }
 
-void usage(char *prog)
+FIXTURE(args)
 {
-	printf("Usage: %s\n", prog);
-	printf("  -b	Broadcast wakeup (all waiters)\n");
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -l	Lock the pi futex across requeue\n");
-	printf("  -o	Use a third party pi futex owner during requeue (cancels -l)\n");
-	printf("  -t N	Timeout in nanoseconds (default: 0)\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
+};
+
+FIXTURE_SETUP(args)
+{
+};
+
+FIXTURE_TEARDOWN(args)
+{
+};
+
+FIXTURE_VARIANT(args)
+{
+	long timeout_ns;
+	bool broadcast;
+	bool owner;
+	bool locked;
+};
+
+/*
+ * For a given timeout value, this macro creates a test input with all the
+ * possible combinations of valid arguments
+ */
+#define FIXTURE_VARIANT_ADD_TIMEOUT(timeout)		\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout)			\
+{							\
+	.timeout_ns = timeout,				\
+};							\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout##_broadcast)	\
+{							\
+	.timeout_ns = timeout,				\
+	.broadcast = true,				\
+};							\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout##_broadcast_locked) \
+{							\
+	.timeout_ns = timeout,				\
+	.broadcast = true,				\
+	.locked = true,					\
+};							\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout##_broadcast_owner) \
+{							\
+	.timeout_ns = timeout,				\
+	.broadcast = true,				\
+	.owner = true,					\
+};							\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout##_locked)		\
+{							\
+	.timeout_ns = timeout,				\
+	.locked = true,					\
+};							\
+							\
+FIXTURE_VARIANT_ADD(args, t_##timeout##_owner)		\
+{							\
+	.timeout_ns = timeout,				\
+	.owner = true,					\
+};							\
+
+FIXTURE_VARIANT_ADD_TIMEOUT(0);
+FIXTURE_VARIANT_ADD_TIMEOUT(5000);
+FIXTURE_VARIANT_ADD_TIMEOUT(500000);
+FIXTURE_VARIANT_ADD_TIMEOUT(2000000000);
 
 int create_rt_thread(pthread_t *pth, void*(*func)(void *), void *arg,
 		     int policy, int prio)
@@ -82,26 +130,26 @@ int create_rt_thread(pthread_t *pth, void*(*func)(void *), void *arg,
 
 	ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
 	if (ret) {
-		error("pthread_attr_setinheritsched\n", ret);
+		ksft_exit_fail_msg("pthread_attr_setinheritsched\n");
 		return -1;
 	}
 
 	ret = pthread_attr_setschedpolicy(&attr, policy);
 	if (ret) {
-		error("pthread_attr_setschedpolicy\n", ret);
+		ksft_exit_fail_msg("pthread_attr_setschedpolicy\n");
 		return -1;
 	}
 
 	schedp.sched_priority = prio;
 	ret = pthread_attr_setschedparam(&attr, &schedp);
 	if (ret) {
-		error("pthread_attr_setschedparam\n", ret);
+		ksft_exit_fail_msg("pthread_attr_setschedparam\n");
 		return -1;
 	}
 
 	ret = pthread_create(pth, &attr, func, arg);
 	if (ret) {
-		error("pthread_create\n", ret);
+		ksft_exit_fail_msg("pthread_create\n");
 		return -1;
 	}
 	return 0;
@@ -113,7 +161,7 @@ void *waiterfn(void *arg)
 	struct thread_arg *args = (struct thread_arg *)arg;
 	futex_t old_val;
 
-	info("Waiter %ld: running\n", args->id);
+	ksft_print_dbg_msg("Waiter %ld: running\n", args->id);
 	/* Each thread sleeps for a different amount of time
 	 * This is to avoid races, because we don't lock the
 	 * external mutex here */
@@ -121,26 +169,25 @@ void *waiterfn(void *arg)
 
 	old_val = f1;
 	atomic_inc(&waiters_blocked);
-	info("Calling futex_wait_requeue_pi: %p (%u) -> %p\n",
+	ksft_print_dbg_msg("Calling futex_wait_requeue_pi: %p (%u) -> %p\n",
 	     &f1, f1, &f2);
 	args->ret = futex_wait_requeue_pi(&f1, old_val, &f2, args->timeout,
 					  FUTEX_PRIVATE_FLAG);
 
-	info("waiter %ld woke with %d %s\n", args->id, args->ret,
+	ksft_print_dbg_msg("waiter %ld woke with %d %s\n", args->id, args->ret,
 	     args->ret < 0 ? strerror(errno) : "");
 	atomic_inc(&waiters_woken);
 	if (args->ret < 0) {
 		if (args->timeout && errno == ETIMEDOUT)
 			args->ret = 0;
 		else {
-			args->ret = RET_ERROR;
-			error("futex_wait_requeue_pi\n", errno);
+			ksft_exit_fail_msg("futex_wait_requeue_pi\n");
 		}
 		futex_lock_pi(&f2, NULL, 0, FUTEX_PRIVATE_FLAG);
 	}
 	futex_unlock_pi(&f2, FUTEX_PRIVATE_FLAG);
 
-	info("Waiter %ld: exiting with %d\n", args->id, args->ret);
+	ksft_print_dbg_msg("Waiter %ld: exiting with %d\n", args->id, args->ret);
 	pthread_exit((void *)&args->ret);
 }
 
@@ -153,14 +200,14 @@ void *broadcast_wakerfn(void *arg)
 	int nr_wake = 1;
 	int i = 0;
 
-	info("Waker: waiting for waiters to block\n");
+	ksft_print_dbg_msg("Waker: waiting for waiters to block\n");
 	while (waiters_blocked.val < THREAD_MAX)
 		usleep(1000);
 	usleep(1000);
 
-	info("Waker: Calling broadcast\n");
+	ksft_print_dbg_msg("Waker: Calling broadcast\n");
 	if (args->lock) {
-		info("Calling FUTEX_LOCK_PI on mutex=%x @ %p\n", f2, &f2);
+		ksft_print_dbg_msg("Calling FUTEX_LOCK_PI on mutex=%x @ %p\n", f2, &f2);
 		futex_lock_pi(&f2, NULL, 0, FUTEX_PRIVATE_FLAG);
 	}
  continue_requeue:
@@ -168,16 +215,14 @@ void *broadcast_wakerfn(void *arg)
 	args->ret = futex_cmp_requeue_pi(&f1, old_val, &f2, nr_wake, nr_requeue,
 				   FUTEX_PRIVATE_FLAG);
 	if (args->ret < 0) {
-		args->ret = RET_ERROR;
-		error("FUTEX_CMP_REQUEUE_PI failed\n", errno);
+		ksft_exit_fail_msg("FUTEX_CMP_REQUEUE_PI failed\n");
 	} else if (++i < MAX_WAKE_ITERS) {
 		task_count += args->ret;
 		if (task_count < THREAD_MAX - waiters_woken.val)
 			goto continue_requeue;
 	} else {
-		error("max broadcast iterations (%d) reached with %d/%d tasks woken or requeued\n",
-		       0, MAX_WAKE_ITERS, task_count, THREAD_MAX);
-		args->ret = RET_ERROR;
+		ksft_exit_fail_msg("max broadcast iterations (%d) reached with %d/%d tasks woken or requeued\n",
+		       MAX_WAKE_ITERS, task_count, THREAD_MAX);
 	}
 
 	futex_wake(&wake_complete, 1, FUTEX_PRIVATE_FLAG);
@@ -188,7 +233,7 @@ void *broadcast_wakerfn(void *arg)
 	if (args->ret > 0)
 		args->ret = task_count;
 
-	info("Waker: exiting with %d\n", args->ret);
+	ksft_print_dbg_msg("Waker: exiting with %d\n", args->ret);
 	pthread_exit((void *)&args->ret);
 }
 
@@ -201,20 +246,20 @@ void *signal_wakerfn(void *arg)
 	int nr_wake = 1;
 	int i = 0;
 
-	info("Waker: waiting for waiters to block\n");
+	ksft_print_dbg_msg("Waker: waiting for waiters to block\n");
 	while (waiters_blocked.val < THREAD_MAX)
 		usleep(1000);
 	usleep(1000);
 
 	while (task_count < THREAD_MAX && waiters_woken.val < THREAD_MAX) {
-		info("task_count: %d, waiters_woken: %d\n",
+		ksft_print_dbg_msg("task_count: %d, waiters_woken: %d\n",
 		     task_count, waiters_woken.val);
 		if (args->lock) {
-			info("Calling FUTEX_LOCK_PI on mutex=%x @ %p\n",
-			     f2, &f2);
+			ksft_print_dbg_msg("Calling FUTEX_LOCK_PI on mutex=%x @ %p\n",
+			    f2, &f2);
 			futex_lock_pi(&f2, NULL, 0, FUTEX_PRIVATE_FLAG);
 		}
-		info("Waker: Calling signal\n");
+		ksft_print_dbg_msg("Waker: Calling signal\n");
 		/* cond_signal */
 		old_val = f1;
 		args->ret = futex_cmp_requeue_pi(&f1, old_val, &f2,
@@ -222,28 +267,23 @@ void *signal_wakerfn(void *arg)
 						 FUTEX_PRIVATE_FLAG);
 		if (args->ret < 0)
 			args->ret = -errno;
-		info("futex: %x\n", f2);
+		ksft_print_dbg_msg("futex: %x\n", f2);
 		if (args->lock) {
-			info("Calling FUTEX_UNLOCK_PI on mutex=%x @ %p\n",
-			     f2, &f2);
+			ksft_print_dbg_msg("Calling FUTEX_UNLOCK_PI on mutex=%x @ %p\n",
+			    f2, &f2);
 			futex_unlock_pi(&f2, FUTEX_PRIVATE_FLAG);
 		}
-		info("futex: %x\n", f2);
-		if (args->ret < 0) {
-			error("FUTEX_CMP_REQUEUE_PI failed\n", errno);
-			args->ret = RET_ERROR;
-			break;
-		}
+		ksft_print_dbg_msg("futex: %x\n", f2);
+		if (args->ret < 0)
+			ksft_exit_fail_msg("FUTEX_CMP_REQUEUE_PI failed\n");
 
 		task_count += args->ret;
 		usleep(SIGNAL_PERIOD_US);
 		i++;
 		/* we have to loop at least THREAD_MAX times */
 		if (i > MAX_WAKE_ITERS + THREAD_MAX) {
-			error("max signaling iterations (%d) reached, giving up on pending waiters.\n",
-			      0, MAX_WAKE_ITERS + THREAD_MAX);
-			args->ret = RET_ERROR;
-			break;
+			ksft_exit_fail_msg("max signaling iterations (%d) reached, giving up on pending waiters.\n",
+			      MAX_WAKE_ITERS + THREAD_MAX);
 		}
 	}
 
@@ -252,8 +292,8 @@ void *signal_wakerfn(void *arg)
 	if (args->ret >= 0)
 		args->ret = task_count;
 
-	info("Waker: exiting with %d\n", args->ret);
-	info("Waker: waiters_woken: %d\n", waiters_woken.val);
+	ksft_print_dbg_msg("Waker: exiting with %d\n", args->ret);
+	ksft_print_dbg_msg("Waker: waiters_woken: %d\n", waiters_woken.val);
 	pthread_exit((void *)&args->ret);
 }
 
@@ -270,35 +310,40 @@ void *third_party_blocker(void *arg)
 	ret2 = futex_unlock_pi(&f2, FUTEX_PRIVATE_FLAG);
 
  out:
-	if (args->ret || ret2) {
-		error("third_party_blocker() futex error", 0);
-		args->ret = RET_ERROR;
-	}
+	if (args->ret || ret2)
+		ksft_exit_fail_msg("third_party_blocker() futex error");
 
 	pthread_exit((void *)&args->ret);
 }
 
-int unit_test(int broadcast, long lock, int third_party_owner, long timeout_ns)
+TEST_F(args, futex_requeue_pi)
 {
-	void *(*wakerfn)(void *) = signal_wakerfn;
 	struct thread_arg blocker_arg = THREAD_ARG_INITIALIZER;
 	struct thread_arg waker_arg = THREAD_ARG_INITIALIZER;
 	pthread_t waiter[THREAD_MAX], waker, blocker;
-	struct timespec ts, *tsp = NULL;
+	void *(*wakerfn)(void *) = signal_wakerfn;
+	bool third_party_owner = variant->owner;
+	long timeout_ns = variant->timeout_ns;
+	bool broadcast = variant->broadcast;
 	struct thread_arg args[THREAD_MAX];
-	int *waiter_ret;
-	int i, ret = RET_PASS;
+	struct timespec ts, *tsp = NULL;
+	bool lock = variant->locked;
+	int *waiter_ret, i, ret = 0;
+
+	ksft_print_msg(
+		"\tArguments: broadcast=%d locked=%d owner=%d timeout=%ldns\n",
+		broadcast, lock, third_party_owner, timeout_ns);
 
 	if (timeout_ns) {
 		time_t secs;
 
-		info("timeout_ns = %ld\n", timeout_ns);
+		ksft_print_dbg_msg("timeout_ns = %ld\n", timeout_ns);
 		ret = clock_gettime(CLOCK_MONOTONIC, &ts);
 		secs = (ts.tv_nsec + timeout_ns) / 1000000000;
 		ts.tv_nsec = ((int64_t)ts.tv_nsec + timeout_ns) % 1000000000;
 		ts.tv_sec += secs;
-		info("ts.tv_sec  = %ld\n", ts.tv_sec);
-		info("ts.tv_nsec = %ld\n", ts.tv_nsec);
+		ksft_print_dbg_msg("ts.tv_sec  = %ld\n", ts.tv_sec);
+		ksft_print_dbg_msg("ts.tv_nsec = %ld\n", ts.tv_nsec);
 		tsp = &ts;
 	}
 
@@ -308,10 +353,7 @@ int unit_test(int broadcast, long lock, int third_party_owner, long timeout_ns)
 	if (third_party_owner) {
 		if (create_rt_thread(&blocker, third_party_blocker,
 				     (void *)&blocker_arg, SCHED_FIFO, 1)) {
-			error("Creating third party blocker thread failed\n",
-			      errno);
-			ret = RET_ERROR;
-			goto out;
+			ksft_exit_fail_msg("Creating third party blocker thread failed\n");
 		}
 	}
 
@@ -319,20 +361,16 @@ int unit_test(int broadcast, long lock, int third_party_owner, long timeout_ns)
 	for (i = 0; i < THREAD_MAX; i++) {
 		args[i].id = i;
 		args[i].timeout = tsp;
-		info("Starting thread %d\n", i);
+		ksft_print_dbg_msg("Starting thread %d\n", i);
 		if (create_rt_thread(&waiter[i], waiterfn, (void *)&args[i],
 				     SCHED_FIFO, 1)) {
-			error("Creating waiting thread failed\n", errno);
-			ret = RET_ERROR;
-			goto out;
+			ksft_exit_fail_msg("Creating waiting thread failed\n");
 		}
 	}
 	waker_arg.lock = lock;
 	if (create_rt_thread(&waker, wakerfn, (void *)&waker_arg,
 			     SCHED_FIFO, 1)) {
-		error("Creating waker thread failed\n", errno);
-		ret = RET_ERROR;
-		goto out;
+		ksft_exit_fail_msg("Creating waker thread failed\n");
 	}
 
 	/* Wait for threads to finish */
@@ -346,7 +384,6 @@ int unit_test(int broadcast, long lock, int third_party_owner, long timeout_ns)
 		pthread_join(blocker, NULL);
 	pthread_join(waker, NULL);
 
-out:
 	if (!ret) {
 		if (*waiter_ret)
 			ret = *waiter_ret;
@@ -356,54 +393,8 @@ out:
 			ret = blocker_arg.ret;
 	}
 
-	return ret;
+	if (ret)
+		ksft_test_result_fail("fail");
 }
 
-int main(int argc, char *argv[])
-{
-	int c, ret;
-
-	while ((c = getopt(argc, argv, "bchlot:v:")) != -1) {
-		switch (c) {
-		case 'b':
-			broadcast = 1;
-			break;
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'l':
-			locked = 1;
-			break;
-		case 'o':
-			owner = 1;
-			locked = 0;
-			break;
-		case 't':
-			timeout_ns = atoi(optarg);
-			break;
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
-
-	printf("%s: Test requeue functionality\n", basename(argv[0]));
-	printf("\tArguments: broadcast=%d locked=%d owner=%d timeout=%ldns\n",
-	       broadcast, locked, owner, timeout_ns);
-
-	/*
-	 * FIXME: unit_test is obsolete now that we parse options and the
-	 * various style of runs are done by run.sh - simplify the code and move
-	 * unit_test into main()
-	 */
-	ret = unit_test(broadcast, locked, owner, timeout_ns);
-
-	print_result(ret);
-	return ret;
-}
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c b/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
index d5e4f2c4da2a..f686e605359c 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi_mismatched_ops.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2009
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      1. Block a thread using FUTEX_WAIT
  *      2. Attempt to use FUTEX_CMP_REQUEUE_PI on the futex from 1.
@@ -27,63 +23,32 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+
 #include "futextest.h"
-#include "logging.h"
+#include "kselftest_harness.h"
 
 futex_t f1 = FUTEX_INITIALIZER;
 futex_t f2 = FUTEX_INITIALIZER;
 int child_ret = 0;
 
-void usage(char *prog)
-{
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
-
 void *blocking_child(void *arg)
 {
 	child_ret = futex_wait(&f1, f1, NULL, FUTEX_PRIVATE_FLAG);
 	if (child_ret < 0) {
 		child_ret = -errno;
-		error("futex_wait\n", errno);
+		ksft_exit_fail_msg("futex_wait\n");
 	}
 	return (void *)&child_ret;
 }
 
-int main(int argc, char *argv[])
+TEST(requeue_pi_mismatched_ops)
 {
-	int ret = RET_PASS;
 	pthread_t child;
-	int c;
+	int ret;
 
-	while ((c = getopt(argc, argv, "chv:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
-
-	printf("%s: Detect mismatched requeue_pi operations\n",
-	       basename(argv[0]));
+	if (pthread_create(&child, NULL, blocking_child, NULL))
+		ksft_exit_fail_msg("pthread_create\n");
 
-	if (pthread_create(&child, NULL, blocking_child, NULL)) {
-		error("pthread_create\n", errno);
-		ret = RET_ERROR;
-		goto out;
-	}
 	/* Allow the child to block in the kernel. */
 	sleep(1);
 
@@ -102,34 +67,27 @@ int main(int argc, char *argv[])
 			 * FUTEX_WAKE.
 			 */
 			ret = futex_wake(&f1, 1, FUTEX_PRIVATE_FLAG);
-			if (ret == 1) {
-				ret = RET_PASS;
-			} else if (ret < 0) {
-				error("futex_wake\n", errno);
-				ret = RET_ERROR;
-			} else {
-				error("futex_wake did not wake the child\n", 0);
-				ret = RET_ERROR;
-			}
+			if (ret == 1)
+				ret = 0;
+			else if (ret < 0)
+				ksft_exit_fail_msg("futex_wake\n");
+			else
+				ksft_exit_fail_msg("futex_wake did not wake the child\n");
 		} else {
-			error("futex_cmp_requeue_pi\n", errno);
-			ret = RET_ERROR;
+			ksft_exit_fail_msg("futex_cmp_requeue_pi\n");
 		}
 	} else if (ret > 0) {
-		fail("futex_cmp_requeue_pi failed to detect the mismatch\n");
-		ret = RET_FAIL;
+		ksft_test_result_fail("futex_cmp_requeue_pi failed to detect the mismatch\n");
 	} else {
-		error("futex_cmp_requeue_pi found no waiters\n", 0);
-		ret = RET_ERROR;
+		ksft_exit_fail_msg("futex_cmp_requeue_pi found no waiters\n");
 	}
 
 	pthread_join(child, NULL);
 
-	if (!ret)
-		ret = child_ret;
-
- out:
-	/* If the kernel crashes, we shouldn't return at all. */
-	print_result(ret);
-	return ret;
+	if (!ret && !child_ret)
+		ksft_test_result_pass("futex_requeue_pi_mismatched_ops passed\n");
+	else
+		ksft_test_result_pass("futex_requeue_pi_mismatched_ops failed\n");
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c b/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
index 3d7dc6afc3f8..a18ccae73eb1 100644
--- a/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
+++ b/tools/testing/selftests/futex/functional/futex_requeue_pi_signal_restart.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2006-2008
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      This test exercises the futex_wait_requeue_pi() signal handling both
  *      before and after the requeue. The first should be restarted by the
@@ -28,9 +24,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+
 #include "atomic.h"
 #include "futextest.h"
-#include "logging.h"
+#include "kselftest_harness.h"
 
 #define DELAY_US 100
 
@@ -40,15 +37,6 @@ atomic_t requeued = ATOMIC_INITIALIZER;
 
 int waiter_ret = 0;
 
-void usage(char *prog)
-{
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
-
 int create_rt_thread(pthread_t *pth, void*(*func)(void *), void *arg,
 		     int policy, int prio)
 {
@@ -60,35 +48,28 @@ int create_rt_thread(pthread_t *pth, void*(*func)(void *), void *arg,
 	memset(&schedp, 0, sizeof(schedp));
 
 	ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
-	if (ret) {
-		error("pthread_attr_setinheritsched\n", ret);
-		return -1;
-	}
+	if (ret)
+		ksft_exit_fail_msg("pthread_attr_setinheritsched\n");
 
 	ret = pthread_attr_setschedpolicy(&attr, policy);
-	if (ret) {
-		error("pthread_attr_setschedpolicy\n", ret);
-		return -1;
-	}
+	if (ret)
+		ksft_exit_fail_msg("pthread_attr_setschedpolicy\n");
 
 	schedp.sched_priority = prio;
 	ret = pthread_attr_setschedparam(&attr, &schedp);
-	if (ret) {
-		error("pthread_attr_setschedparam\n", ret);
-		return -1;
-	}
+	if (ret)
+		ksft_exit_fail_msg("pthread_attr_setschedparam\n");
 
 	ret = pthread_create(pth, &attr, func, arg);
-	if (ret) {
-		error("pthread_create\n", ret);
-		return -1;
-	}
+	if (ret)
+		ksft_exit_fail_msg("pthread_create\n");
+
 	return 0;
 }
 
 void handle_signal(int signo)
 {
-	info("signal received %s requeue\n",
+	ksft_print_dbg_msg("signal received %s requeue\n",
 	     requeued.val ? "after" : "prior to");
 }
 
@@ -97,76 +78,46 @@ void *waiterfn(void *arg)
 	unsigned int old_val;
 	int res;
 
-	waiter_ret = RET_PASS;
-
-	info("Waiter running\n");
-	info("Calling FUTEX_LOCK_PI on f2=%x @ %p\n", f2, &f2);
+	ksft_print_dbg_msg("Waiter running\n");
+	ksft_print_dbg_msg("Calling FUTEX_LOCK_PI on f2=%x @ %p\n", f2, &f2);
 	old_val = f1;
 	res = futex_wait_requeue_pi(&f1, old_val, &(f2), NULL,
 				    FUTEX_PRIVATE_FLAG);
 	if (!requeued.val || errno != EWOULDBLOCK) {
-		fail("unexpected return from futex_wait_requeue_pi: %d (%s)\n",
+		ksft_test_result_fail("unexpected return from futex_wait_requeue_pi: %d (%s)\n",
 		     res, strerror(errno));
-		info("w2:futex: %x\n", f2);
+		ksft_print_dbg_msg("w2:futex: %x\n", f2);
 		if (!res)
 			futex_unlock_pi(&f2, FUTEX_PRIVATE_FLAG);
-		waiter_ret = RET_FAIL;
 	}
 
-	info("Waiter exiting with %d\n", waiter_ret);
 	pthread_exit(NULL);
 }
 
 
-int main(int argc, char *argv[])
+TEST(futex_requeue_pi_signal_restart)
 {
 	unsigned int old_val;
 	struct sigaction sa;
 	pthread_t waiter;
-	int c, res, ret = RET_PASS;
-
-	while ((c = getopt(argc, argv, "chv:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
-
-	printf("%s: Test signal handling during requeue_pi\n",
-	       basename(argv[0]));
-	printf("\tArguments: <none>\n");
+	int res;
 
 	sa.sa_handler = handle_signal;
 	sigemptyset(&sa.sa_mask);
 	sa.sa_flags = 0;
-	if (sigaction(SIGUSR1, &sa, NULL)) {
-		error("sigaction\n", errno);
-		exit(1);
-	}
+	if (sigaction(SIGUSR1, &sa, NULL))
+		ksft_exit_fail_msg("sigaction\n");
 
-	info("m1:f2: %x\n", f2);
-	info("Creating waiter\n");
+	ksft_print_dbg_msg("m1:f2: %x\n", f2);
+	ksft_print_dbg_msg("Creating waiter\n");
 	res = create_rt_thread(&waiter, waiterfn, NULL, SCHED_FIFO, 1);
-	if (res) {
-		error("Creating waiting thread failed", res);
-		ret = RET_ERROR;
-		goto out;
-	}
+	if (res)
+		ksft_exit_fail_msg("Creating waiting thread failed");
 
-	info("Calling FUTEX_LOCK_PI on f2=%x @ %p\n", f2, &f2);
-	info("m2:f2: %x\n", f2);
+	ksft_print_dbg_msg("Calling FUTEX_LOCK_PI on f2=%x @ %p\n", f2, &f2);
+	ksft_print_dbg_msg("m2:f2: %x\n", f2);
 	futex_lock_pi(&f2, 0, 0, FUTEX_PRIVATE_FLAG);
-	info("m3:f2: %x\n", f2);
+	ksft_print_dbg_msg("m3:f2: %x\n", f2);
 
 	while (1) {
 		/*
@@ -174,30 +125,28 @@ int main(int argc, char *argv[])
 		 * restart futex_wait_requeue_pi() in the kernel. Wait for the
 		 * waiter to block on f1 again.
 		 */
-		info("Issuing SIGUSR1 to waiter\n");
+		ksft_print_dbg_msg("Issuing SIGUSR1 to waiter\n");
 		pthread_kill(waiter, SIGUSR1);
 		usleep(DELAY_US);
 
-		info("Requeueing waiter via FUTEX_CMP_REQUEUE_PI\n");
+		ksft_print_dbg_msg("Requeueing waiter via FUTEX_CMP_REQUEUE_PI\n");
 		old_val = f1;
 		res = futex_cmp_requeue_pi(&f1, old_val, &(f2), 1, 0,
 					   FUTEX_PRIVATE_FLAG);
 		/*
 		 * If res is non-zero, we either requeued the waiter or hit an
 		 * error, break out and handle it. If it is zero, then the
-		 * signal may have hit before the the waiter was blocked on f1.
+		 * signal may have hit before the waiter was blocked on f1.
 		 * Try again.
 		 */
 		if (res > 0) {
 			atomic_set(&requeued, 1);
 			break;
 		} else if (res < 0) {
-			error("FUTEX_CMP_REQUEUE_PI failed\n", errno);
-			ret = RET_ERROR;
-			break;
+			ksft_exit_fail_msg("FUTEX_CMP_REQUEUE_PI failed\n");
 		}
 	}
-	info("m4:f2: %x\n", f2);
+	ksft_print_dbg_msg("m4:f2: %x\n", f2);
 
 	/*
 	 * Signal the waiter after requeue, waiter should return from
@@ -205,19 +154,14 @@ int main(int argc, char *argv[])
 	 * futex_unlock_pi() can't happen before the signal wakeup is detected
 	 * in the kernel.
 	 */
-	info("Issuing SIGUSR1 to waiter\n");
+	ksft_print_dbg_msg("Issuing SIGUSR1 to waiter\n");
 	pthread_kill(waiter, SIGUSR1);
-	info("Waiting for waiter to return\n");
+	ksft_print_dbg_msg("Waiting for waiter to return\n");
 	pthread_join(waiter, NULL);
 
-	info("Calling FUTEX_UNLOCK_PI on mutex=%x @ %p\n", f2, &f2);
+	ksft_print_dbg_msg("Calling FUTEX_UNLOCK_PI on mutex=%x @ %p\n", f2, &f2);
 	futex_unlock_pi(&f2, FUTEX_PRIVATE_FLAG);
-	info("m5:f2: %x\n", f2);
-
- out:
-	if (ret == RET_PASS && waiter_ret)
-		ret = waiter_ret;
-
-	print_result(ret);
-	return ret;
+	ksft_print_dbg_msg("m5:f2: %x\n", f2);
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_wait.c b/tools/testing/selftests/futex/functional/futex_wait.c
new file mode 100644
index 000000000000..0e69c53524c1
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_wait.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright Collabora Ltd., 2021
+ *
+ * futex cmp requeue test by André Almeida <andrealmeid@collabora.com>
+ */
+
+#include <pthread.h>
+#include <sys/shm.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+
+#include "futextest.h"
+#include "kselftest_harness.h"
+
+#define timeout_ns  30000000
+#define WAKE_WAIT_US 10000
+#define SHM_PATH "futex_shm_file"
+
+void *futex;
+
+static void *waiterfn(void *arg)
+{
+	struct timespec to;
+	unsigned int flags = 0;
+
+	if (arg)
+		flags = *((unsigned int *) arg);
+
+	to.tv_sec = 0;
+	to.tv_nsec = timeout_ns;
+
+	if (futex_wait(futex, 0, &to, flags))
+		printf("waiter failed errno %d\n", errno);
+
+	return NULL;
+}
+
+TEST(private_futex)
+{
+	unsigned int flags = FUTEX_PRIVATE_FLAG;
+	u_int32_t f_private = 0;
+	pthread_t waiter;
+	int res;
+
+	futex = &f_private;
+
+	/* Testing a private futex */
+	ksft_print_dbg_msg("Calling private futex_wait on futex: %p\n", futex);
+	if (pthread_create(&waiter, NULL, waiterfn, (void *) &flags))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	ksft_print_dbg_msg("Calling private futex_wake on futex: %p\n", futex);
+	res = futex_wake(futex, 1, FUTEX_PRIVATE_FLAG);
+	if (res != 1) {
+		ksft_test_result_fail("futex_wake private returned: %d %s\n",
+				      errno, strerror(errno));
+	} else {
+		ksft_test_result_pass("futex_wake private succeeds\n");
+	}
+}
+
+TEST(anon_page)
+{
+	u_int32_t *shared_data;
+	pthread_t waiter;
+	int res, shm_id;
+
+	/* Testing an anon page shared memory */
+	shm_id = shmget(IPC_PRIVATE, 4096, IPC_CREAT | 0666);
+	if (shm_id < 0) {
+		perror("shmget");
+		exit(1);
+	}
+
+	shared_data = shmat(shm_id, NULL, 0);
+
+	*shared_data = 0;
+	futex = shared_data;
+
+	ksft_print_dbg_msg("Calling shared (page anon) futex_wait on futex: %p\n", futex);
+	if (pthread_create(&waiter, NULL, waiterfn, NULL))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	ksft_print_dbg_msg("Calling shared (page anon) futex_wake on futex: %p\n", futex);
+	res = futex_wake(futex, 1, 0);
+	if (res != 1) {
+		ksft_test_result_fail("futex_wake shared (page anon) returned: %d %s\n",
+				      errno, strerror(errno));
+	} else {
+		ksft_test_result_pass("futex_wake shared (page anon) succeeds\n");
+	}
+
+	shmdt(shared_data);
+}
+
+TEST(file_backed)
+{
+	u_int32_t f_private = 0;
+	pthread_t waiter;
+	int res, fd;
+	void *shm;
+
+	/* Testing a file backed shared memory */
+	fd = open(SHM_PATH, O_RDWR | O_CREAT, S_IRUSR | S_IWUSR);
+	if (fd < 0)
+		ksft_exit_fail_msg("open");
+
+	if (ftruncate(fd, sizeof(f_private)))
+		ksft_exit_fail_msg("ftruncate");
+
+	shm = mmap(NULL, sizeof(f_private), PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	if (shm == MAP_FAILED)
+		ksft_exit_fail_msg("mmap");
+
+	memcpy(shm, &f_private, sizeof(f_private));
+
+	futex = shm;
+
+	ksft_print_dbg_msg("Calling shared (file backed) futex_wait on futex: %p\n", futex);
+	if (pthread_create(&waiter, NULL, waiterfn, NULL))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	ksft_print_dbg_msg("Calling shared (file backed) futex_wake on futex: %p\n", futex);
+	res = futex_wake(shm, 1, 0);
+	if (res != 1) {
+		ksft_test_result_fail("futex_wake shared (file backed) returned: %d %s\n",
+				      errno, strerror(errno));
+	} else {
+		ksft_test_result_pass("futex_wake shared (file backed) succeeds\n");
+	}
+
+	munmap(shm, sizeof(f_private));
+	remove(SHM_PATH);
+	close(fd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_wait_private_mapped_file.c b/tools/testing/selftests/futex/functional/futex_wait_private_mapped_file.c
index 5f687f247454..2a749f9b14eb 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_private_mapped_file.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_private_mapped_file.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  * Copyright FUJITSU LIMITED 2010
  * Copyright KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      Internally, Futex has two handling mode, anon and file. The private file
  *      mapping is special. At first it behave as file, but after write anything
@@ -31,8 +27,8 @@
 #include <libgen.h>
 #include <signal.h>
 
-#include "logging.h"
 #include "futextest.h"
+#include "kselftest_harness.h"
 
 #define PAGE_SZ 4096
 
@@ -43,83 +39,44 @@ char pad2[PAGE_SZ] = {1};
 #define WAKE_WAIT_US 3000000
 struct timespec wait_timeout = { .tv_sec = 5, .tv_nsec = 0};
 
-void usage(char *prog)
-{
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
-
 void *thr_futex_wait(void *arg)
 {
 	int ret;
 
-	info("futex wait\n");
+	ksft_print_dbg_msg("futex wait\n");
 	ret = futex_wait(&val, 1, &wait_timeout, 0);
-	if (ret && errno != EWOULDBLOCK && errno != ETIMEDOUT) {
-		error("futex error.\n", errno);
-		print_result(RET_ERROR);
-		exit(RET_ERROR);
-	}
+	if (ret && errno != EWOULDBLOCK && errno != ETIMEDOUT)
+		ksft_exit_fail_msg("futex error.\n");
 
 	if (ret && errno == ETIMEDOUT)
-		fail("waiter timedout\n");
+		ksft_exit_fail_msg("waiter timedout\n");
 
-	info("futex_wait: ret = %d, errno = %d\n", ret, errno);
+	ksft_print_dbg_msg("futex_wait: ret = %d, errno = %d\n", ret, errno);
 
 	return NULL;
 }
 
-int main(int argc, char **argv)
+TEST(wait_private_mapped_file)
 {
 	pthread_t thr;
-	int ret = RET_PASS;
 	int res;
-	int c;
-
-	while ((c = getopt(argc, argv, "chv:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
-
-	printf("%s: Test the futex value of private file mappings in FUTEX_WAIT\n",
-	       basename(argv[0]));
-
-	ret = pthread_create(&thr, NULL, thr_futex_wait, NULL);
-	if (ret < 0) {
-		fprintf(stderr, "pthread_create error\n");
-		ret = RET_ERROR;
-		goto out;
-	}
-
-	info("wait a while\n");
+
+	res = pthread_create(&thr, NULL, thr_futex_wait, NULL);
+	if (res < 0)
+		ksft_exit_fail_msg("pthread_create error\n");
+
+	ksft_print_dbg_msg("wait a while\n");
 	usleep(WAKE_WAIT_US);
 	val = 2;
 	res = futex_wake(&val, 1, 0);
-	info("futex_wake %d\n", res);
-	if (res != 1) {
-		fail("FUTEX_WAKE didn't find the waiting thread.\n");
-		ret = RET_FAIL;
-	}
+	ksft_print_dbg_msg("futex_wake %d\n", res);
+	if (res != 1)
+		ksft_exit_fail_msg("FUTEX_WAKE didn't find the waiting thread.\n");
 
-	info("join\n");
+	ksft_print_dbg_msg("join\n");
 	pthread_join(thr, NULL);
 
- out:
-	print_result(ret);
-	return ret;
+	ksft_test_result_pass("wait_private_mapped_file");
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_wait_timeout.c b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
index ab428ca894de..674dd13af421 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_timeout.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2009
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      Block on a futex and wait for timeout.
  *
@@ -15,72 +11,177 @@
  *
  * HISTORY
  *      2009-Nov-6: Initial version by Darren Hart <dvhart@linux.intel.com>
+ *      2021-Apr-26: More test cases by André Almeida <andrealmeid@collabora.com>
  *
  *****************************************************************************/
 
-#include <errno.h>
-#include <getopt.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
+#include <pthread.h>
+
 #include "futextest.h"
-#include "logging.h"
+#include "futex2test.h"
+#include "kselftest_harness.h"
 
 static long timeout_ns = 100000;	/* 100us default timeout */
+static futex_t futex_pi;
+static pthread_barrier_t barrier;
 
-void usage(char *prog)
+/*
+ * Get a PI lock and hold it forever, so the main thread lock_pi will block
+ * and we can test the timeout
+ */
+void *get_pi_lock(void *arg)
 {
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -t N	Timeout in nanoseconds (default: 100,000)\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
+	int ret;
+	volatile futex_t lock = 0;
+
+	ret = futex_lock_pi(&futex_pi, NULL, 0, 0);
+	if (ret != 0)
+		ksft_exit_fail_msg("futex_lock_pi failed\n");
+
+	pthread_barrier_wait(&barrier);
+
+	/* Blocks forever */
+	ret = futex_wait(&lock, 0, NULL, 0);
+	ksft_exit_fail_msg("futex_wait failed\n");
+
+	return NULL;
 }
 
-int main(int argc, char *argv[])
+/*
+ * Check if the function returned the expected error
+ */
+static void test_timeout(int res, char *test_name, int err)
 {
-	futex_t f1 = FUTEX_INITIALIZER;
-	struct timespec to;
-	int res, ret = RET_PASS;
-	int c;
-
-	while ((c = getopt(argc, argv, "cht:v:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 't':
-			timeout_ns = atoi(optarg);
-			break;
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
+	if (!res || errno != err) {
+		ksft_test_result_fail("%s returned %d\n", test_name,
+				      res < 0 ? errno : res);
+	} else {
+		ksft_test_result_pass("%s succeeds\n", test_name);
 	}
+}
 
-	printf("%s: Block on a futex and wait for timeout\n",
-	       basename(argv[0]));
-	printf("\tArguments: timeout=%ldns\n", timeout_ns);
+/*
+ * Calculate absolute timeout and correct overflow
+ */
+static int futex_get_abs_timeout(clockid_t clockid, struct timespec *to,
+				 long timeout_ns)
+{
+	if (clock_gettime(clockid, to))
+		ksft_exit_fail_msg("clock_gettime failed\n");
+
+	to->tv_nsec += timeout_ns;
 
-	/* initialize timeout */
+	if (to->tv_nsec >= 1000000000) {
+		to->tv_sec++;
+		to->tv_nsec -= 1000000000;
+	}
+
+	return 0;
+}
+
+TEST(wait_bitset)
+{
+	futex_t f1 = FUTEX_INITIALIZER;
+	struct timespec to;
+	int res;
+
+	/* initialize relative timeout */
 	to.tv_sec = 0;
 	to.tv_nsec = timeout_ns;
 
-	info("Calling futex_wait on f1: %u @ %p\n", f1, &f1);
-	res = futex_wait(&f1, f1, &to, FUTEX_PRIVATE_FLAG);
-	if (!res || errno != ETIMEDOUT) {
-		fail("futex_wait returned %d\n", ret < 0 ? errno : ret);
-		ret = RET_FAIL;
-	}
+	res = futex_wait(&f1, f1, &to, 0);
+	test_timeout(res, "futex_wait relative", ETIMEDOUT);
+
+	/* FUTEX_WAIT_BITSET with CLOCK_REALTIME */
+	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_wait_bitset(&f1, f1, &to, 1, FUTEX_CLOCK_REALTIME);
+	test_timeout(res, "futex_wait_bitset realtime", ETIMEDOUT);
 
-	print_result(ret);
-	return ret;
+	/* FUTEX_WAIT_BITSET with CLOCK_MONOTONIC */
+	if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_wait_bitset(&f1, f1, &to, 1, 0);
+	test_timeout(res, "futex_wait_bitset monotonic", ETIMEDOUT);
 }
+
+TEST(requeue_pi)
+{
+	futex_t f1 = FUTEX_INITIALIZER;
+	struct timespec to;
+	int res;
+
+	/* FUTEX_WAIT_REQUEUE_PI with CLOCK_REALTIME */
+	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_wait_requeue_pi(&f1, f1, &futex_pi, &to, FUTEX_CLOCK_REALTIME);
+	test_timeout(res, "futex_wait_requeue_pi realtime", ETIMEDOUT);
+
+	/* FUTEX_WAIT_REQUEUE_PI with CLOCK_MONOTONIC */
+	if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_wait_requeue_pi(&f1, f1, &futex_pi, &to, 0);
+	test_timeout(res, "futex_wait_requeue_pi monotonic", ETIMEDOUT);
+
+}
+
+TEST(lock_pi)
+{
+	struct timespec to;
+	pthread_t thread;
+	int res;
+
+	/* Create a thread that will lock forever so any waiter will timeout */
+	pthread_barrier_init(&barrier, NULL, 2);
+	pthread_create(&thread, NULL, get_pi_lock, NULL);
+
+	/* Wait until the other thread calls futex_lock_pi() */
+	pthread_barrier_wait(&barrier);
+	pthread_barrier_destroy(&barrier);
+
+	/*
+	 * FUTEX_LOCK_PI with CLOCK_REALTIME
+	 * Due to historical reasons, FUTEX_LOCK_PI supports only realtime
+	 * clock, but requires the caller to not set CLOCK_REALTIME flag.
+	 *
+	 * If you call FUTEX_LOCK_PI with a monotonic clock, it'll be
+	 * interpreted as a realtime clock, and (unless you mess your machine's
+	 * time or your time machine) the monotonic clock value is always
+	 * smaller than realtime and the syscall will timeout immediately.
+	 */
+	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_lock_pi(&futex_pi, &to, 0, 0);
+	test_timeout(res, "futex_lock_pi realtime", ETIMEDOUT);
+
+	/* Test operations that don't support FUTEX_CLOCK_REALTIME */
+	res = futex_lock_pi(&futex_pi, NULL, 0, FUTEX_CLOCK_REALTIME);
+	test_timeout(res, "futex_lock_pi invalid timeout flag", ENOSYS);
+}
+
+TEST(waitv)
+{
+	futex_t f1 = FUTEX_INITIALIZER;
+	struct futex_waitv waitv = {
+		.uaddr		= (uintptr_t)&f1,
+		.val		= f1,
+		.flags		= FUTEX_32,
+		.__reserved	= 0,
+	};
+	struct timespec to;
+	int res;
+
+	/* futex_waitv with CLOCK_MONOTONIC */
+	if (futex_get_abs_timeout(CLOCK_MONOTONIC, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_waitv(&waitv, 1, 0, &to, CLOCK_MONOTONIC);
+	test_timeout(res, "futex_waitv monotonic", ETIMEDOUT);
+
+	/* futex_waitv with CLOCK_REALTIME */
+	if (futex_get_abs_timeout(CLOCK_REALTIME, &to, timeout_ns))
+		ksft_test_result_error("get_time error");
+	res = futex_waitv(&waitv, 1, 0, &to, CLOCK_REALTIME);
+	test_timeout(res, "futex_waitv realtime", ETIMEDOUT);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_wait_uninitialized_heap.c b/tools/testing/selftests/futex/functional/futex_wait_uninitialized_heap.c
index fe7aee96844b..b07d68a67f31 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_uninitialized_heap.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_uninitialized_heap.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  * Copyright FUJITSU LIMITED 2010
  * Copyright KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      Wait on uninitialized heap. It shold be zero and FUTEX_WAIT should
  *      return immediately. This test is intent to test zero page handling in
@@ -33,92 +29,55 @@
 #include <linux/futex.h>
 #include <libgen.h>
 
-#include "logging.h"
 #include "futextest.h"
+#include "kselftest_harness.h"
 
 #define WAIT_US 5000000
 
 static int child_blocked = 1;
-static int child_ret;
+static bool child_ret;
 void *buf;
 
-void usage(char *prog)
-{
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
-}
-
 void *wait_thread(void *arg)
 {
 	int res;
 
-	child_ret = RET_PASS;
+	child_ret = true;
 	res = futex_wait(buf, 1, NULL, 0);
 	child_blocked = 0;
 
 	if (res != 0 && errno != EWOULDBLOCK) {
-		error("futex failure\n", errno);
-		child_ret = RET_ERROR;
+		ksft_exit_fail_msg("futex failure\n");
+		child_ret = false;
 	}
 	pthread_exit(NULL);
 }
 
-int main(int argc, char **argv)
+TEST(futex_wait_uninitialized_heap)
 {
-	int c, ret = RET_PASS;
 	long page_size;
 	pthread_t thr;
-
-	while ((c = getopt(argc, argv, "chv:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
+	int ret;
 
 	page_size = sysconf(_SC_PAGESIZE);
 
 	buf = mmap(NULL, page_size, PROT_READ|PROT_WRITE,
 		   MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
-	if (buf == (void *)-1) {
-		error("mmap\n", errno);
-		exit(1);
-	}
-
-	printf("%s: Test the uninitialized futex value in FUTEX_WAIT\n",
-	       basename(argv[0]));
-
+	if (buf == (void *)-1)
+		ksft_exit_fail_msg("mmap\n");
 
 	ret = pthread_create(&thr, NULL, wait_thread, NULL);
-	if (ret) {
-		error("pthread_create\n", errno);
-		ret = RET_ERROR;
-		goto out;
-	}
+	if (ret)
+		ksft_exit_fail_msg("pthread_create\n");
 
-	info("waiting %dus for child to return\n", WAIT_US);
+	ksft_print_dbg_msg("waiting %dus for child to return\n", WAIT_US);
 	usleep(WAIT_US);
 
-	ret = child_ret;
-	if (child_blocked) {
-		fail("child blocked in kernel\n");
-		ret = RET_FAIL;
-	}
+	if (child_blocked)
+		ksft_test_result_fail("child blocked in kernel\n");
 
- out:
-	print_result(ret);
-	return ret;
+	if (!child_ret)
+		ksft_test_result_fail("child error\n");
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_wait_wouldblock.c b/tools/testing/selftests/futex/functional/futex_wait_wouldblock.c
index b6b027448825..9ff936ecf164 100644
--- a/tools/testing/selftests/futex/functional/futex_wait_wouldblock.c
+++ b/tools/testing/selftests/futex/functional/futex_wait_wouldblock.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2009
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      Test if FUTEX_WAIT op returns -EWOULDBLOCK if the futex value differs
  *      from the expected one.
@@ -25,55 +21,61 @@
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+
 #include "futextest.h"
-#include "logging.h"
+#include "futex2test.h"
+#include "kselftest_harness.h"
 
 #define timeout_ns 100000
 
-void usage(char *prog)
+TEST(futex_wait_wouldblock)
 {
-	printf("Usage: %s\n", prog);
-	printf("  -c	Use color\n");
-	printf("  -h	Display this help message\n");
-	printf("  -v L	Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
-	       VQUIET, VCRITICAL, VINFO);
+	struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns};
+	futex_t f1 = FUTEX_INITIALIZER;
+	int res;
+
+	ksft_print_dbg_msg("Calling futex_wait on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
+	res = futex_wait(&f1, f1+1, &to, FUTEX_PRIVATE_FLAG);
+	if (!res || errno != EWOULDBLOCK) {
+		ksft_test_result_fail("futex_wait returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_wait\n");
+	}
 }
 
-int main(int argc, char *argv[])
+TEST(futex_waitv_wouldblock)
 {
 	struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns};
 	futex_t f1 = FUTEX_INITIALIZER;
-	int res, ret = RET_PASS;
-	int c;
+	struct futex_waitv waitv = {
+		.uaddr		= (uintptr_t)&f1,
+		.val		= f1 + 1,
+		.flags		= FUTEX_32,
+		.__reserved	= 0,
+	};
+	int res;
 
-	while ((c = getopt(argc, argv, "cht:v:")) != -1) {
-		switch (c) {
-		case 'c':
-			log_color(1);
-			break;
-		case 'h':
-			usage(basename(argv[0]));
-			exit(0);
-		case 'v':
-			log_verbosity(atoi(optarg));
-			break;
-		default:
-			usage(basename(argv[0]));
-			exit(1);
-		}
-	}
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("clock_gettime failed %d\n", errno);
 
-	printf("%s: Test the unexpected futex value in FUTEX_WAIT\n",
-	       basename(argv[0]));
+	to.tv_nsec += timeout_ns;
 
-	info("Calling futex_wait on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
-	res = futex_wait(&f1, f1+1, &to, FUTEX_PRIVATE_FLAG);
-	if (!res || errno != EWOULDBLOCK) {
-		fail("futex_wait returned: %d %s\n",
-		     res ? errno : res, res ? strerror(errno) : "");
-		ret = RET_FAIL;
+	if (to.tv_nsec >= 1000000000) {
+		to.tv_sec++;
+		to.tv_nsec -= 1000000000;
 	}
 
-	print_result(ret);
-	return ret;
+	ksft_print_dbg_msg("Calling futex_waitv on f1: %u @ %p with val=%u\n", f1, &f1, f1+1);
+	res = futex_waitv(&waitv, 1, 0, &to, CLOCK_MONOTONIC);
+	if (!res || errno != EWOULDBLOCK) {
+		ksft_test_result_fail("futex_waitv returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv\n");
+	}
 }
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/futex_waitv.c b/tools/testing/selftests/futex/functional/futex_waitv.c
new file mode 100644
index 000000000000..d60876164d4b
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_waitv.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * futex_waitv() test by André Almeida <andrealmeid@collabora.com>
+ *
+ * Copyright 2021 Collabora Ltd.
+ */
+
+#include <errno.h>
+#include <error.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <sys/shm.h>
+
+#include "futextest.h"
+#include "futex2test.h"
+#include "kselftest_harness.h"
+
+#define WAKE_WAIT_US 10000
+#define NR_FUTEXES 30
+static struct futex_waitv waitv[NR_FUTEXES];
+u_int32_t futexes[NR_FUTEXES] = {0};
+
+void *waiterfn(void *arg)
+{
+	struct timespec to;
+	int res;
+
+	/* setting absolute timeout for futex2 */
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
+	if (res < 0) {
+		ksft_test_result_fail("futex_waitv returned: %d %s\n",
+				      errno, strerror(errno));
+	} else if (res != NR_FUTEXES - 1) {
+		ksft_test_result_fail("futex_waitv returned: %d, expecting %d\n",
+				      res, NR_FUTEXES - 1);
+	}
+
+	return NULL;
+}
+
+TEST(private_waitv)
+{
+	pthread_t waiter;
+	int res, i;
+
+	for (i = 0; i < NR_FUTEXES; i++) {
+		waitv[i].uaddr = (uintptr_t)&futexes[i];
+		waitv[i].flags = FUTEX_32 | FUTEX_PRIVATE_FLAG;
+		waitv[i].val = 0;
+		waitv[i].__reserved = 0;
+	}
+
+	/* Private waitv */
+	if (pthread_create(&waiter, NULL, waiterfn, NULL))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	res = futex_wake(u64_to_ptr(waitv[NR_FUTEXES - 1].uaddr), 1, FUTEX_PRIVATE_FLAG);
+	if (res != 1) {
+		ksft_test_result_fail("futex_wake private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv private\n");
+	}
+}
+
+TEST(shared_waitv)
+{
+	pthread_t waiter;
+	int res, i;
+
+	/* Shared waitv */
+	for (i = 0; i < NR_FUTEXES; i++) {
+		int shm_id = shmget(IPC_PRIVATE, 4096, IPC_CREAT | 0666);
+
+		if (shm_id < 0) {
+			perror("shmget");
+			exit(1);
+		}
+
+		unsigned int *shared_data = shmat(shm_id, NULL, 0);
+
+		*shared_data = 0;
+		waitv[i].uaddr = (uintptr_t)shared_data;
+		waitv[i].flags = FUTEX_32;
+		waitv[i].val = 0;
+		waitv[i].__reserved = 0;
+	}
+
+	if (pthread_create(&waiter, NULL, waiterfn, NULL))
+		ksft_exit_fail_msg("pthread_create failed\n");
+
+	usleep(WAKE_WAIT_US);
+
+	res = futex_wake(u64_to_ptr(waitv[NR_FUTEXES - 1].uaddr), 1, 0);
+	if (res != 1) {
+		ksft_test_result_fail("futex_wake shared returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv shared\n");
+	}
+
+	for (i = 0; i < NR_FUTEXES; i++)
+		shmdt(u64_to_ptr(waitv[i].uaddr));
+}
+
+TEST(invalid_flag)
+{
+	struct timespec to;
+	int res;
+
+	/* Testing a waiter without FUTEX_32 flag */
+	waitv[0].flags = FUTEX_PRIVATE_FLAG;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
+	if (res == EINVAL) {
+		ksft_test_result_fail("futex_waitv private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv without FUTEX_32\n");
+	}
+}
+
+TEST(unaligned_address)
+{
+	struct timespec to;
+	int res;
+
+	/* Testing a waiter with an unaligned address */
+	waitv[0].flags = FUTEX_PRIVATE_FLAG | FUTEX_32;
+	waitv[0].uaddr = 1;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
+	if (res == EINVAL) {
+		ksft_test_result_fail("futex_wake private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv with an unaligned address\n");
+	}
+}
+
+TEST(null_address)
+{
+	struct timespec to;
+	int res;
+
+	/* Testing a NULL address for waiters.uaddr */
+	waitv[0].uaddr = 0x00000000;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(waitv, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
+	if (res == EINVAL) {
+		ksft_test_result_fail("futex_waitv private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv NULL address in waitv.uaddr\n");
+	}
+
+	/* Testing a NULL address for *waiters */
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(NULL, NR_FUTEXES, 0, &to, CLOCK_MONOTONIC);
+	if (res == EINVAL) {
+		ksft_test_result_fail("futex_waitv private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv NULL address in *waiters\n");
+	}
+}
+
+TEST(invalid_clockid)
+{
+	struct timespec to;
+	int res;
+
+	/* Testing an invalid clockid */
+	if (clock_gettime(CLOCK_MONOTONIC, &to))
+		ksft_exit_fail_msg("gettime64 failed\n");
+
+	to.tv_sec++;
+
+	res = futex_waitv(NULL, NR_FUTEXES, 0, &to, CLOCK_TAI);
+	if (res == EINVAL) {
+		ksft_test_result_fail("futex_waitv private returned: %d %s\n",
+				      res ? errno : res,
+				      res ? strerror(errno) : "");
+	} else {
+		ksft_test_result_pass("futex_waitv invalid clockid\n");
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/futex/functional/run.sh b/tools/testing/selftests/futex/functional/run.sh
index e87dbe2a0b0d..e88545c06d57 100755
--- a/tools/testing/selftests/futex/functional/run.sh
+++ b/tools/testing/selftests/futex/functional/run.sh
@@ -1,14 +1,10 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 ###############################################################################
 #
 #   Copyright © International Business Machines  Corp., 2009
 #
-#   This program is free software;  you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation; either version 2 of the License, or
-#   (at your option) any later version.
-#
 # DESCRIPTION
 #      Run tests in the current directory.
 #
@@ -22,58 +18,36 @@
 #
 ###############################################################################
 
-# Test for a color capable console
-if [ -z "$USE_COLOR" ]; then
-    tput setf 7
-    if [ $? -eq 0 ]; then
-        USE_COLOR=1
-        tput sgr0
-    fi
-fi
-if [ "$USE_COLOR" -eq 1 ]; then
-    COLOR="-c"
-fi
+echo
+./futex_requeue_pi
+
+echo
+./futex_requeue_pi_mismatched_ops
+
+echo
+./futex_requeue_pi_signal_restart
 
+echo
+./futex_wait_timeout
 
 echo
-# requeue pi testing
-# without timeouts
-./futex_requeue_pi $COLOR
-./futex_requeue_pi $COLOR -b
-./futex_requeue_pi $COLOR -b -l
-./futex_requeue_pi $COLOR -b -o
-./futex_requeue_pi $COLOR -l
-./futex_requeue_pi $COLOR -o
-# with timeouts
-./futex_requeue_pi $COLOR -b -l -t 5000
-./futex_requeue_pi $COLOR -l -t 5000
-./futex_requeue_pi $COLOR -b -l -t 500000
-./futex_requeue_pi $COLOR -l -t 500000
-./futex_requeue_pi $COLOR -b -t 5000
-./futex_requeue_pi $COLOR -t 5000
-./futex_requeue_pi $COLOR -b -t 500000
-./futex_requeue_pi $COLOR -t 500000
-./futex_requeue_pi $COLOR -b -o -t 5000
-./futex_requeue_pi $COLOR -l -t 5000
-./futex_requeue_pi $COLOR -b -o -t 500000
-./futex_requeue_pi $COLOR -l -t 500000
-# with long timeout
-./futex_requeue_pi $COLOR -b -l -t 2000000000
-./futex_requeue_pi $COLOR -l -t 2000000000
+./futex_wait_wouldblock
 
+echo
+./futex_wait_uninitialized_heap
+./futex_wait_private_mapped_file
 
 echo
-./futex_requeue_pi_mismatched_ops $COLOR
+./futex_wait
 
 echo
-./futex_requeue_pi_signal_restart $COLOR
+./futex_requeue
 
 echo
-./futex_wait_timeout $COLOR
+./futex_waitv
 
 echo
-./futex_wait_wouldblock $COLOR
+./futex_priv_hash
 
 echo
-./futex_wait_uninitialized_heap $COLOR
-./futex_wait_private_mapped_file $COLOR
+./futex_numa_mpol
diff --git a/tools/testing/selftests/futex/include/atomic.h b/tools/testing/selftests/futex/include/atomic.h
index f861da3e31ab..428bcd921bb5 100644
--- a/tools/testing/selftests/futex/include/atomic.h
+++ b/tools/testing/selftests/futex/include/atomic.h
@@ -1,12 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2009
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      GCC atomic builtin wrappers
  *      http://gcc.gnu.org/onlinedocs/gcc-4.1.0/gcc/Atomic-Builtins.html
diff --git a/tools/testing/selftests/futex/include/futex2test.h b/tools/testing/selftests/futex/include/futex2test.h
new file mode 100644
index 000000000000..1f625b39948a
--- /dev/null
+++ b/tools/testing/selftests/futex/include/futex2test.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Futex2 library addons for futex tests
+ *
+ * Copyright 2021 Collabora Ltd.
+ */
+#include <linux/time_types.h>
+#include <stdint.h>
+
+#define u64_to_ptr(x) ((void *)(uintptr_t)(x))
+
+#ifndef __NR_futex_waitv
+#define __NR_futex_waitv 449
+struct futex_waitv {
+	__u64 val;
+	__u64 uaddr;
+	__u32 flags;
+	__u32 __reserved;
+};
+#endif
+
+#ifndef __NR_futex_wake
+#define __NR_futex_wake 454
+#endif
+
+#ifndef __NR_futex_wait
+#define __NR_futex_wait 455
+#endif
+
+#ifndef FUTEX2_SIZE_U32
+#define FUTEX2_SIZE_U32 0x02
+#endif
+
+#ifndef FUTEX2_NUMA
+#define FUTEX2_NUMA 0x04
+#endif
+
+#ifndef FUTEX2_MPOL
+#define FUTEX2_MPOL 0x08
+#endif
+
+#ifndef FUTEX2_PRIVATE
+#define FUTEX2_PRIVATE FUTEX_PRIVATE_FLAG
+#endif
+
+#ifndef FUTEX2_NO_NODE
+#define FUTEX_NO_NODE (-1)
+#endif
+
+#ifndef FUTEX_32
+#define FUTEX_32 FUTEX2_SIZE_U32
+#endif
+
+struct futex32_numa {
+	futex_t futex;
+	futex_t numa;
+};
+
+/**
+ * futex_waitv - Wait at multiple futexes, wake on any
+ * @waiters:    Array of waiters
+ * @nr_waiters: Length of waiters array
+ * @flags: Operation flags
+ * @timo:  Optional timeout for operation
+ */
+static inline int futex_waitv(volatile struct futex_waitv *waiters, unsigned long nr_waiters,
+			      unsigned long flags, struct timespec *timo, clockid_t clockid)
+{
+		struct __kernel_timespec ts = {
+			.tv_sec = timo->tv_sec,
+			.tv_nsec = timo->tv_nsec,
+		};
+
+		return syscall(__NR_futex_waitv, waiters, nr_waiters, flags, &ts, clockid);
+}
+
+/*
+ * futex_wait() - block on uaddr with optional timeout
+ * @val:	Expected value
+ * @flags:	FUTEX2 flags
+ * @timeout:	Relative timeout
+ * @clockid:	Clock id for the timeout
+ */
+static inline int futex2_wait(void *uaddr, long val, unsigned int flags,
+			      struct timespec *timeout, clockid_t clockid)
+{
+	return syscall(__NR_futex_wait, uaddr, val, ~0U, flags, timeout, clockid);
+}
+
+/*
+ * futex2_wake() - Wake a number of futexes
+ * @nr:		Number of threads to wake at most
+ * @flags:	FUTEX2 flags
+ */
+static inline int futex2_wake(void *uaddr, int nr, unsigned int flags)
+{
+	return syscall(__NR_futex_wake, uaddr, ~0U, nr, flags);
+}
diff --git a/tools/testing/selftests/futex/include/futextest.h b/tools/testing/selftests/futex/include/futextest.h
index b98c3aba7102..3d48e9789d9f 100644
--- a/tools/testing/selftests/futex/include/futextest.h
+++ b/tools/testing/selftests/futex/include/futextest.h
@@ -1,12 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
 /******************************************************************************
  *
  *   Copyright © International Business Machines  Corp., 2009
  *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * DESCRIPTION
  *      Glibc independent futex library for testing kernel functionality.
  *
@@ -51,6 +47,28 @@ typedef volatile u_int32_t futex_t;
 					 FUTEX_PRIVATE_FLAG)
 #endif
 
+/*
+ * SYS_futex is expected from system C library, in glibc some 32-bit
+ * architectures (e.g. RV32) are using 64-bit time_t, therefore it doesn't have
+ * SYS_futex defined but just SYS_futex_time64. Define SYS_futex as
+ * SYS_futex_time64 in this situation to ensure the compilation and the
+ * compatibility.
+ */
+#if !defined(SYS_futex) && defined(SYS_futex_time64)
+#define SYS_futex SYS_futex_time64
+#endif
+
+/*
+ * On 32bit systems if we use "-D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64" or if
+ * we are using a newer compiler then the size of the timestamps will be 64bit,
+ * however, the SYS_futex will still point to the 32bit futex system call.
+ */
+#if __SIZEOF_POINTER__ == 4 && defined(SYS_futex_time64) && \
+	defined(_TIME_BITS) && _TIME_BITS == 64
+# undef SYS_futex
+# define SYS_futex SYS_futex_time64
+#endif
+
 /**
  * futex() - SYS_futex syscall wrapper
  * @uaddr:	address of first futex
diff --git a/tools/testing/selftests/futex/include/logging.h b/tools/testing/selftests/futex/include/logging.h
deleted file mode 100644
index 014aa01197af..000000000000
--- a/tools/testing/selftests/futex/include/logging.h
+++ /dev/null
@@ -1,153 +0,0 @@
-/******************************************************************************
- *
- *   Copyright © International Business Machines  Corp., 2009
- *
- *   This program is free software;  you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
- * DESCRIPTION
- *      Glibc independent futex library for testing kernel functionality.
- *
- * AUTHOR
- *      Darren Hart <dvhart@linux.intel.com>
- *
- * HISTORY
- *      2009-Nov-6: Initial version by Darren Hart <dvhart@linux.intel.com>
- *
- *****************************************************************************/
-
-#ifndef _LOGGING_H
-#define _LOGGING_H
-
-#include <string.h>
-#include <unistd.h>
-#include <linux/futex.h>
-#include "kselftest.h"
-
-/*
- * Define PASS, ERROR, and FAIL strings with and without color escape
- * sequences, default to no color.
- */
-#define ESC 0x1B, '['
-#define BRIGHT '1'
-#define GREEN '3', '2'
-#define YELLOW '3', '3'
-#define RED '3', '1'
-#define ESCEND 'm'
-#define BRIGHT_GREEN ESC, BRIGHT, ';', GREEN, ESCEND
-#define BRIGHT_YELLOW ESC, BRIGHT, ';', YELLOW, ESCEND
-#define BRIGHT_RED ESC, BRIGHT, ';', RED, ESCEND
-#define RESET_COLOR ESC, '0', 'm'
-static const char PASS_COLOR[] = {BRIGHT_GREEN, ' ', 'P', 'A', 'S', 'S',
-				  RESET_COLOR, 0};
-static const char ERROR_COLOR[] = {BRIGHT_YELLOW, 'E', 'R', 'R', 'O', 'R',
-				   RESET_COLOR, 0};
-static const char FAIL_COLOR[] = {BRIGHT_RED, ' ', 'F', 'A', 'I', 'L',
-				  RESET_COLOR, 0};
-static const char INFO_NORMAL[] = " INFO";
-static const char PASS_NORMAL[] = " PASS";
-static const char ERROR_NORMAL[] = "ERROR";
-static const char FAIL_NORMAL[] = " FAIL";
-const char *INFO = INFO_NORMAL;
-const char *PASS = PASS_NORMAL;
-const char *ERROR = ERROR_NORMAL;
-const char *FAIL = FAIL_NORMAL;
-
-/* Verbosity setting for INFO messages */
-#define VQUIET    0
-#define VCRITICAL 1
-#define VINFO     2
-#define VMAX      VINFO
-int _verbose = VCRITICAL;
-
-/* Functional test return codes */
-#define RET_PASS   0
-#define RET_ERROR -1
-#define RET_FAIL  -2
-
-/**
- * log_color() - Use colored output for PASS, ERROR, and FAIL strings
- * @use_color:	use color (1) or not (0)
- */
-void log_color(int use_color)
-{
-	if (use_color) {
-		PASS = PASS_COLOR;
-		ERROR = ERROR_COLOR;
-		FAIL = FAIL_COLOR;
-	} else {
-		PASS = PASS_NORMAL;
-		ERROR = ERROR_NORMAL;
-		FAIL = FAIL_NORMAL;
-	}
-}
-
-/**
- * log_verbosity() - Set verbosity of test output
- * @verbose:	Enable (1) verbose output or not (0)
- *
- * Currently setting verbose=1 will enable INFO messages and 0 will disable
- * them. FAIL and ERROR messages are always displayed.
- */
-void log_verbosity(int level)
-{
-	if (level > VMAX)
-		level = VMAX;
-	else if (level < 0)
-		level = 0;
-	_verbose = level;
-}
-
-/**
- * print_result() - Print standard PASS | ERROR | FAIL results
- * @ret:	the return value to be considered: 0 | RET_ERROR | RET_FAIL
- *
- * print_result() is primarily intended for functional tests.
- */
-void print_result(int ret)
-{
-	const char *result = "Unknown return code";
-
-	switch (ret) {
-	case RET_PASS:
-		ksft_inc_pass_cnt();
-		result = PASS;
-		break;
-	case RET_ERROR:
-		result = ERROR;
-		break;
-	case RET_FAIL:
-		ksft_inc_fail_cnt();
-		result = FAIL;
-		break;
-	}
-	printf("Result: %s\n", result);
-}
-
-/* log level macros */
-#define info(message, vargs...) \
-do { \
-	if (_verbose >= VINFO) \
-		fprintf(stderr, "\t%s: "message, INFO, ##vargs); \
-} while (0)
-
-#define error(message, err, args...) \
-do { \
-	if (_verbose >= VCRITICAL) {\
-		if (err) \
-			fprintf(stderr, "\t%s: %s: "message, \
-				ERROR, strerror(err), ##args); \
-		else \
-			fprintf(stderr, "\t%s: "message, ERROR, ##args); \
-	} \
-} while (0)
-
-#define fail(message, args...) \
-do { \
-	if (_verbose >= VCRITICAL) \
-		fprintf(stderr, "\t%s: "message, FAIL, ##args); \
-} while (0)
-
-#endif
diff --git a/tools/testing/selftests/futex/run.sh b/tools/testing/selftests/futex/run.sh
index 4126312ad64e..5e76ea18f9fa 100755
--- a/tools/testing/selftests/futex/run.sh
+++ b/tools/testing/selftests/futex/run.sh
@@ -1,14 +1,10 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-or-later
 
 ###############################################################################
 #
 #   Copyright © International Business Machines  Corp., 2009
 #
-#   This program is free software;  you can redistribute it and/or modify
-#   it under the terms of the GNU General Public License as published by
-#   the Free Software Foundation; either version 2 of the License, or
-#   (at your option) any later version.
-#
 # DESCRIPTION
 #      Run all tests under the functional, performance, and stress directories.
 #      Format and summarize the results.
@@ -23,7 +19,7 @@
 
 # Test for a color capable shell and pass the result to the subdir scripts
 USE_COLOR=0
-tput setf 7
+tput setf 7 || tput setaf 7
 if [ $? -eq 0 ]; then
     USE_COLOR=1
     tput sgr0
diff --git a/tools/testing/selftests/gen_kselftest_tar.sh b/tools/testing/selftests/gen_kselftest_tar.sh
index 17d5bd0c0936..4a974bc03385 100755
--- a/tools/testing/selftests/gen_kselftest_tar.sh
+++ b/tools/testing/selftests/gen_kselftest_tar.sh
@@ -1,13 +1,11 @@
 #!/bin/bash
 #
+# SPDX-License-Identifier: GPL-2.0
 # gen_kselftest_tar
 # Generate kselftest tarball
 # Author: Shuah Khan <shuahkh@osg.samsung.com>
 # Copyright (C) 2015 Samsung Electronics Co., Ltd.
 
-# This software may be freely redistributed under the terms of the GNU
-# General Public License (GPLv2).
-
 # main
 main()
 {
@@ -40,16 +38,26 @@ main()
 	esac
 	fi
 
-	install_dir=./kselftest
+	# Create working directory.
+	dest=`pwd`
+	install_work="$dest"/kselftest_install
+	install_name=kselftest
+	install_dir="$install_work"/"$install_name"
+	mkdir -p "$install_dir"
+
+	# Run install using INSTALL_KSFT_PATH override to generate install
+	# directory
+	./kselftest_install.sh "$install_dir"
+	(cd "$install_work"; tar $copts "$dest"/kselftest${ext} $install_name)
+
+	# Don't put the message at the actual end as people may be parsing the
+	# "archive created" line in their scripts.
+	echo -e "\nConsider using 'make gen_tar' instead of this script\n"
 
-# Run install using INSTALL_KSFT_PATH override to generate install
-# directory
-./kselftest_install.sh
-tar $copts kselftest${ext} $install_dir
-echo "Kselftest archive kselftest${ext} created!"
+	echo "Kselftest archive kselftest${ext} created!"
 
-# clean up install directory
-rm -rf kselftest
+	# clean up top-level install work directory
+	rm -rf "$install_work"
 }
 
 main "$@"
diff --git a/tools/testing/selftests/gpio/.gitignore b/tools/testing/selftests/gpio/.gitignore
new file mode 100644
index 000000000000..ededb077a3a6
--- /dev/null
+++ b/tools/testing/selftests/gpio/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+gpio-mockup-cdev
+gpio-chip-info
+gpio-line-name
diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
new file mode 100644
index 000000000000..7bfe315f7001
--- /dev/null
+++ b/tools/testing/selftests/gpio/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_PROGS := gpio-mockup.sh gpio-sim.sh gpio-aggregator.sh
+TEST_FILES := gpio-mockup-sysfs.sh
+TEST_GEN_PROGS_EXTENDED := gpio-mockup-cdev gpio-chip-info gpio-line-name
+CFLAGS += -O2 -g -Wall $(KHDR_INCLUDES)
+
+include ../lib.mk
diff --git a/tools/testing/selftests/gpio/config b/tools/testing/selftests/gpio/config
new file mode 100644
index 000000000000..1287abeaac7e
--- /dev/null
+++ b/tools/testing/selftests/gpio/config
@@ -0,0 +1,5 @@
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_CDEV=y
+CONFIG_GPIO_MOCKUP=m
+CONFIG_GPIO_SIM=m
+CONFIG_GPIO_AGGREGATOR=m
diff --git a/tools/testing/selftests/gpio/gpio-aggregator.sh b/tools/testing/selftests/gpio/gpio-aggregator.sh
new file mode 100755
index 000000000000..9b6f80ad9f8a
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-aggregator.sh
@@ -0,0 +1,727 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 Bartosz Golaszewski <brgl@bgdev.pl>
+# Copyright (C) 2025 Koichiro Den <koichiro.den@canonical.com>
+
+BASE_DIR=$(dirname "$0")
+CONFIGFS_SIM_DIR="/sys/kernel/config/gpio-sim"
+CONFIGFS_AGG_DIR="/sys/kernel/config/gpio-aggregator"
+SYSFS_AGG_DIR="/sys/bus/platform/drivers/gpio-aggregator"
+MODULE="gpio-aggregator"
+
+fail() {
+	echo "$*" >&2
+	echo "GPIO $MODULE test FAIL"
+	exit 1
+}
+
+skip() {
+	echo "$*" >&2
+	echo "GPIO $MODULE test SKIP"
+	exit 4
+}
+
+# gpio-sim
+sim_enable_chip() {
+	local CHIP=$1
+
+	echo 1 > "$CONFIGFS_SIM_DIR/$CHIP/live" || fail "Unable to enable the chip"
+}
+
+sim_disable_chip() {
+	local CHIP=$1
+
+	echo 0 > "$CONFIGFS_SIM_DIR/$CHIP/live" || fail "Unable to disable the chip"
+}
+
+sim_configfs_cleanup() {
+	local NOCHECK=${1:-0}
+
+	for CHIP_DIR in "$CONFIGFS_SIM_DIR"/*; do
+		[ -d "$CHIP_DIR" ] || continue
+		echo 0 > "$CHIP_DIR/live"
+		find "$CHIP_DIR" -depth -type d -exec rmdir {} \;
+	done
+	[ "$NOCHECK" -eq 1 ] && return;
+	remaining=$(find "$CONFIGFS_SIM_DIR" -mindepth 1 -type d 2> /dev/null)
+	if [ -n "$remaining" ]; then
+		fail "Directories remain in $CONFIGFS_SIM_DIR: $remaining"
+	fi
+}
+
+sim_get_chip_label() {
+	local CHIP=$1
+	local BANK=$2
+	local CHIP_NAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name" 2> /dev/null) || \
+		fail "Unable to read the chip name from configfs"
+
+	$BASE_DIR/gpio-chip-info "/dev/$CHIP_NAME" label || \
+		fail "Unable to read the chip label from the character device"
+}
+
+# gpio-aggregator
+agg_create_chip() {
+	local CHIP=$1
+
+	mkdir "$CONFIGFS_AGG_DIR/$CHIP"
+}
+
+agg_remove_chip() {
+	local CHIP=$1
+
+	find "$CONFIGFS_AGG_DIR/$CHIP/" -depth -type d -exec rmdir {} \; || \
+		fail "Unable to remove $CONFIGFS_AGG_DIR/$CHIP"
+}
+
+agg_create_line() {
+	local CHIP=$1
+	local LINE=$2
+
+	mkdir "$CONFIGFS_AGG_DIR/$CHIP/$LINE"
+}
+
+agg_remove_line() {
+	local CHIP=$1
+	local LINE=$2
+
+	rmdir "$CONFIGFS_AGG_DIR/$CHIP/$LINE"
+}
+
+agg_set_key() {
+	local CHIP=$1
+	local LINE=$2
+	local KEY=$3
+
+	echo "$KEY" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/key" || fail "Unable to set the lookup key"
+}
+
+agg_set_offset() {
+	local CHIP=$1
+	local LINE=$2
+	local OFFSET=$3
+
+	echo "$OFFSET" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/offset" || \
+		fail "Unable to set the lookup offset"
+}
+
+agg_set_line_name() {
+	local CHIP=$1
+	local LINE=$2
+	local NAME=$3
+
+	echo "$NAME" > "$CONFIGFS_AGG_DIR/$CHIP/$LINE/name" || fail "Unable to set the line name"
+}
+
+agg_enable_chip() {
+	local CHIP=$1
+
+	echo 1 > "$CONFIGFS_AGG_DIR/$CHIP/live" || fail "Unable to enable the chip"
+}
+
+agg_disable_chip() {
+	local CHIP=$1
+
+	echo 0 > "$CONFIGFS_AGG_DIR/$CHIP/live" || fail "Unable to disable the chip"
+}
+
+agg_configfs_cleanup() {
+	local NOCHECK=${1:-0}
+
+	for CHIP_DIR in "$CONFIGFS_AGG_DIR"/*; do
+		[ -d "$CHIP_DIR" ] || continue
+		echo 0 > "$CHIP_DIR/live" 2> /dev/null
+		find "$CHIP_DIR" -depth -type d -exec rmdir {} \;
+	done
+	[ "$NOCHECK" -eq 1 ] && return;
+	remaining=$(find "$CONFIGFS_AGG_DIR" -mindepth 1 -type d 2> /dev/null)
+	if [ -n "$remaining" ]; then
+		fail "Directories remain in $CONFIGFS_AGG_DIR: $remaining"
+	fi
+}
+
+agg_configfs_dev_name() {
+	local CHIP=$1
+
+	cat "$CONFIGFS_AGG_DIR/$CHIP/dev_name" 2> /dev/null || \
+		fail "Unable to read the device name from configfs"
+}
+
+agg_configfs_chip_name() {
+	local CHIP=$1
+	local DEV_NAME=$(agg_configfs_dev_name "$CHIP")
+	local CHIP_LIST=$(find "/sys/devices/platform/$DEV_NAME" \
+		-maxdepth 1 -type d -name "gpiochip[0-9]*" 2> /dev/null)
+	local CHIP_COUNT=$(echo "$CHIP_LIST" | wc -l)
+
+	if [ -z "$CHIP_LIST" ]; then
+		fail "No gpiochip in /sys/devices/platform/$DEV_NAME/"
+	elif [ "$CHIP_COUNT" -ne 1 ]; then
+		fail "Multiple gpiochips unexpectedly found: $CHIP_LIST"
+	fi
+	basename "$CHIP_LIST"
+}
+
+agg_get_chip_num_lines() {
+	local CHIP=$1
+	local N_DIR=$(ls -d $CONFIGFS_AGG_DIR/$CHIP/line[0-9]* 2> /dev/null | wc -l)
+	local N_LINES
+
+	if [ "$(cat $CONFIGFS_AGG_DIR/$CHIP/live)" = 0 ]; then
+		echo "$N_DIR"
+	else
+		N_LINES=$(
+			$BASE_DIR/gpio-chip-info \
+				"/dev/$(agg_configfs_chip_name "$CHIP")" num-lines
+		) || fail "Unable to read the number of lines from the character device"
+		if [ $N_DIR != $N_LINES ]; then
+			fail "Discrepancy between two sources for the number of lines"
+		fi
+		echo "$N_LINES"
+	fi
+}
+
+agg_get_chip_label() {
+	local CHIP=$1
+
+	$BASE_DIR/gpio-chip-info "/dev/$(agg_configfs_chip_name "$CHIP")" label || \
+		fail "Unable to read the chip label from the character device"
+}
+
+agg_get_line_name() {
+	local CHIP=$1
+	local OFFSET=$2
+	local NAME_CONFIGFS=$(cat "$CONFIGFS_AGG_DIR/$CHIP/line${OFFSET}/name")
+	local NAME_CDEV
+
+	if [ "$(cat "$CONFIGFS_AGG_DIR/$CHIP/live")" = 0 ]; then
+		echo "$NAME_CONFIGFS"
+	else
+		NAME_CDEV=$(
+			$BASE_DIR/gpio-line-name \
+				"/dev/$(agg_configfs_chip_name "$CHIP")" "$OFFSET"
+		) || fail "Unable to read the line name from the character device"
+		if [ "$NAME_CONFIGFS" != "$NAME_CDEV" ]; then
+			fail "Discrepancy between two sources for the name of line"
+		fi
+		echo "$NAME_CDEV"
+	fi
+}
+
+
+# Load the modules. This will pull in configfs if needed too.
+modprobe gpio-sim || skip "unable to load the gpio-sim module"
+modprobe gpio-aggregator || skip "unable to load the gpio-aggregator module"
+
+# Make sure configfs is mounted at /sys/kernel/config. Wait a bit if needed.
+for IDX in $(seq 5); do
+	if [ "$IDX" -eq "5" ]; then
+		skip "configfs not mounted at /sys/kernel/config"
+	fi
+
+	mountpoint -q /sys/kernel/config && break
+	sleep 0.1
+done
+
+# If the module was already loaded: remove all previous chips
+agg_configfs_cleanup
+sim_configfs_cleanup
+
+trap "exit 1" SIGTERM SIGINT
+trap "agg_configfs_cleanup 1; sim_configfs_cleanup 1" EXIT
+
+# Use gpio-sim chips as the test backend
+for CHIP in $(seq -f "chip%g" 0 1); do
+	mkdir $CONFIGFS_SIM_DIR/$CHIP
+	for BANK in $(seq -f "bank%g" 0 1); do
+		mkdir -p "$CONFIGFS_SIM_DIR/$CHIP/$BANK"
+		echo "${CHIP}_${BANK}" > "$CONFIGFS_SIM_DIR/$CHIP/$BANK/label" || \
+			fail "unable to set the chip label"
+		echo 16 > "$CONFIGFS_SIM_DIR/$CHIP/$BANK/num_lines" || \
+			fail "unable to set the number of lines"
+		for IDX in $(seq 0 15); do
+			LINE_NAME="${CHIP}${BANK}_${IDX}"
+			LINE_DIR="$CONFIGFS_SIM_DIR/$CHIP/$BANK/line$IDX"
+			mkdir -p $LINE_DIR
+			echo "$LINE_NAME" > "$LINE_DIR/name" || fail "unable to set the line name"
+		done
+	done
+	sim_enable_chip "$CHIP"
+done
+
+echo "1. GPIO aggregator creation/deletion"
+
+echo "1.1. Creation/deletion via configfs"
+
+echo "1.1.1. Minimum creation/deletion"
+agg_create_chip   agg0
+agg_create_line   agg0 line0
+agg_set_key       agg0 line0 "$(sim_get_chip_label chip0 bank0)"
+agg_set_offset    agg0 line0 5
+agg_set_line_name agg0 line0 test0
+agg_enable_chip   agg0
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 1 || fail "chip unexpectedly dead"
+test "$(agg_get_chip_label agg0)" = "$(agg_configfs_dev_name agg0)" || \
+	fail "label is inconsistent"
+test "$(agg_get_chip_num_lines agg0)" = "1" || fail "number of lines is not 1"
+test "$(agg_get_line_name agg0 0)" = "test0" || fail "line name is unset"
+agg_disable_chip  agg0
+agg_remove_line   agg0 line0
+agg_remove_chip   agg0
+
+echo "1.1.2. Complex creation/deletion"
+agg_create_chip   agg0
+agg_create_line   agg0 line0
+agg_create_line   agg0 line1
+agg_create_line   agg0 line2
+agg_create_line   agg0 line3
+agg_set_key       agg0 line0 "$(sim_get_chip_label chip0 bank0)"
+agg_set_key       agg0 line1 "$(sim_get_chip_label chip0 bank1)"
+agg_set_key       agg0 line2 "$(sim_get_chip_label chip1 bank0)"
+agg_set_key       agg0 line3 "$(sim_get_chip_label chip1 bank1)"
+agg_set_offset    agg0 line0 1
+agg_set_offset    agg0 line1 3
+agg_set_offset    agg0 line2 5
+agg_set_offset    agg0 line3 7
+agg_set_line_name agg0 line0 test0
+agg_set_line_name agg0 line1 test1
+agg_set_line_name agg0 line2 test2
+agg_set_line_name agg0 line3 test3
+agg_enable_chip   agg0
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 1 || fail "chip unexpectedly dead"
+test "$(agg_get_chip_label agg0)" = "$(agg_configfs_dev_name agg0)" || \
+	fail "label is inconsistent"
+test "$(agg_get_chip_num_lines agg0)" = "4" || fail "number of lines is not 1"
+test "$(agg_get_line_name agg0 0)" = "test0" || fail "line name is unset"
+test "$(agg_get_line_name agg0 1)" = "test1" || fail "line name is unset"
+test "$(agg_get_line_name agg0 2)" = "test2" || fail "line name is unset"
+test "$(agg_get_line_name agg0 3)" = "test3" || fail "line name is unset"
+agg_disable_chip  agg0
+agg_remove_line   agg0 line0
+agg_remove_line   agg0 line1
+agg_remove_line   agg0 line2
+agg_remove_line   agg0 line3
+agg_remove_chip   agg0
+
+echo "1.1.3. Can't instantiate a chip without any line"
+agg_create_chip   agg0
+echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
+agg_remove_chip   agg0
+
+echo "1.1.4. Can't instantiate a chip with invalid configuration"
+agg_create_chip   agg0
+agg_create_line   agg0 line0
+agg_set_key       agg0 line0 "chipX_bankX"
+agg_set_offset    agg0 line0 99
+agg_set_line_name agg0 line0 test0
+echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
+agg_remove_line   agg0 line0
+agg_remove_chip   agg0
+
+echo "1.1.5. Can't instantiate a chip asynchronously via deferred probe"
+agg_create_chip   agg0
+agg_create_line   agg0 line0
+agg_set_key       agg0 line0 "chip0_bank0"
+agg_set_offset    agg0 line0 5
+agg_set_line_name agg0 line0 test0
+sim_disable_chip  chip0
+echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || fail "chip unexpectedly alive"
+sim_enable_chip   chip0
+sleep 1
+test "$(cat "$CONFIGFS_AGG_DIR/agg0/live")" = 0 || \
+	fail "chip unexpectedly transitioned to 'live' state"
+agg_remove_line   agg0 line0
+agg_remove_chip   agg0
+
+echo "1.1.6. Can't instantiate a chip with _sysfs prefix"
+mkdir "$CONFIGFS_AGG_DIR/_sysfs" 2> /dev/null && fail "chip _sysfs unexpectedly created"
+mkdir "$CONFIGFS_AGG_DIR/_sysfs.foo" 2> /dev/null && fail "chip _sysfs.foo unexpectedly created"
+
+echo "1.2. Creation/deletion via sysfs"
+
+echo "1.2.1. Minimum creation/deletion"
+echo "chip0_bank0 0" > "$SYSFS_AGG_DIR/new_device"
+CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
+test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly dead"
+test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
+	fail "label is inconsistent"
+test "$(agg_get_chip_num_lines _sysfs.0)" = "1" || fail "number of lines is not 1"
+test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name is unset"
+echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
+test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
+test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
+
+echo "1.2.2. Complex creation/deletion"
+echo "chip0bank0_0 chip1_bank1 10-11" > "$SYSFS_AGG_DIR/new_device"
+CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
+test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly dead"
+test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
+	fail "label is inconsistent"
+test "$(agg_get_chip_num_lines _sysfs.0)" = "3" || fail "number of lines is not 3"
+test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name is unset"
+test "$(agg_get_line_name _sysfs.0 1)" = "" || fail "line name is unset"
+test "$(agg_get_line_name _sysfs.0 2)" = "" || fail "line name is unset"
+echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
+test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
+test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
+
+echo "1.2.3. Asynchronous creation with deferred probe"
+sim_disable_chip  chip0
+echo 'chip0_bank0 0' > $SYSFS_AGG_DIR/new_device
+sleep 1
+test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 0 || fail "chip unexpectedly alive"
+sim_enable_chip  chip0
+sleep 1
+CHIPNAME=$(agg_configfs_chip_name _sysfs.0)
+test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 1 || fail "chip unexpectedly remains dead"
+test "$(agg_get_chip_label _sysfs.0)" = "$(agg_configfs_dev_name _sysfs.0)" || \
+	fail "label is inconsistent"
+test "$(agg_get_chip_num_lines _sysfs.0)" = "1" || fail "number of lines is not 1"
+test "$(agg_get_line_name _sysfs.0 0)" = "" || fail "line name unexpectedly set"
+echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
+test -d $CONFIGFS_AGG_DIR/_sysfs.0 && fail "_sysfs.0 unexpectedly remains"
+test -d /dev/${CHIPNAME} && fail "/dev/${CHIPNAME} unexpectedly remains"
+
+echo "1.2.4. Can't instantiate a chip with invalid configuration"
+echo "xyz 0" > "$SYSFS_AGG_DIR/new_device"
+test "$(cat $CONFIGFS_AGG_DIR/_sysfs.0/live)" = 0 || fail "chip unexpectedly alive"
+echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
+
+echo "2. GPIO aggregator configuration"
+
+echo "2.1. Configuring aggregators instantiated via configfs"
+setup_2_1() {
+	agg_create_chip   agg0
+	agg_create_line   agg0 line0
+	agg_create_line   agg0 line1
+	agg_set_key       agg0 line0 "$(sim_get_chip_label chip0 bank0)"
+	agg_set_key       agg0 line1 "$(sim_get_chip_label chip1 bank0)"
+	agg_set_offset    agg0 line0 1
+	agg_set_offset    agg0 line1 3
+	agg_set_line_name agg0 line0 test0
+	agg_set_line_name agg0 line1 test1
+	agg_enable_chip   agg0
+}
+teardown_2_1() {
+	agg_configfs_cleanup
+}
+
+echo "2.1.1. While offline"
+
+echo "2.1.1.1. Line can be added/removed"
+setup_2_1
+agg_disable_chip  agg0
+agg_create_line   agg0 line2
+agg_set_key       agg0 line2 "$(sim_get_chip_label chip0 bank1)"
+agg_set_offset    agg0 line2 5
+agg_enable_chip   agg0
+test "$(agg_get_chip_num_lines agg0)" = "3" || fail "number of lines is not 1"
+teardown_2_1
+
+echo "2.1.1.2. Line key can be modified"
+setup_2_1
+agg_disable_chip  agg0
+agg_set_key       agg0 line0 "$(sim_get_chip_label chip0 bank1)"
+agg_set_key       agg0 line1 "$(sim_get_chip_label chip1 bank1)"
+agg_enable_chip   agg0
+teardown_2_1
+
+echo "2.1.1.3. Line name can be modified"
+setup_2_1
+agg_disable_chip  agg0
+agg_set_line_name agg0 line0 new0
+agg_set_line_name agg0 line1 new1
+agg_enable_chip   agg0
+test "$(agg_get_line_name agg0 0)" = "new0" || fail "line name is unset"
+test "$(agg_get_line_name agg0 1)" = "new1" || fail "line name is unset"
+teardown_2_1
+
+echo "2.1.1.4. Line offset can be modified"
+setup_2_1
+agg_disable_chip  agg0
+agg_set_offset    agg0 line0 5
+agg_set_offset    agg0 line1 7
+agg_enable_chip   agg0
+teardown_2_1
+
+echo "2.1.1.5. Can re-enable a chip after valid reconfiguration"
+setup_2_1
+agg_disable_chip  agg0
+agg_set_key       agg0 line0 "$(sim_get_chip_label chip1 bank1)"
+agg_set_offset    agg0 line0 15
+agg_set_key       agg0 line1 "$(sim_get_chip_label chip0 bank1)"
+agg_set_offset    agg0 line0 14
+agg_create_line   agg0 line2
+agg_set_key       agg0 line2 "$(sim_get_chip_label chip0 bank1)"
+agg_set_offset    agg0 line2 13
+agg_enable_chip   agg0
+test "$(agg_get_chip_num_lines agg0)" = "3" || fail "number of lines is not 1"
+teardown_2_1
+
+echo "2.1.1.7. Can't re-enable a chip with invalid reconfiguration"
+setup_2_1
+agg_disable_chip  agg0
+agg_set_key       agg0 line0 invalidkey
+echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+teardown_2_1
+setup_2_1
+agg_disable_chip  agg0
+agg_set_offset    agg0 line0 99
+echo 1 > "$CONFIGFS_AGG_DIR/agg0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+teardown_2_1
+
+echo "2.1.2. While online"
+
+echo "2.1.2.1. Can't add/remove line"
+setup_2_1
+mkdir "$CONFIGFS_AGG_DIR/agg0/line2" 2> /dev/null && fail "line unexpectedly added"
+rmdir "$CONFIGFS_AGG_DIR/agg0/line1" 2> /dev/null && fail "line unexpectedly removed"
+teardown_2_1
+
+echo "2.1.2.2. Can't modify line key"
+setup_2_1
+echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/agg0/line0/key" 2> /dev/null && \
+	fail "lookup key unexpectedly updated"
+teardown_2_1
+
+echo "2.1.2.3. Can't modify line name"
+setup_2_1
+echo "new0" > "$CONFIGFS_AGG_DIR/agg0/line0/name" 2> /dev/null && \
+	fail "name unexpectedly updated"
+teardown_2_1
+
+echo "2.1.2.4. Can't modify line offset"
+setup_2_1
+echo "5" > "$CONFIGFS_AGG_DIR/agg0/line0/offset" 2> /dev/null && \
+	fail "offset unexpectedly updated"
+teardown_2_1
+
+echo "2.2. Configuring aggregators instantiated via sysfs"
+setup_2_2() {
+	echo "chip0_bank0 1 chip1_bank0 3" > "$SYSFS_AGG_DIR/new_device"
+}
+teardown_2_2() {
+	echo "$(agg_configfs_dev_name _sysfs.0)" > "$SYSFS_AGG_DIR/delete_device"
+}
+
+echo "2.2.1. While online"
+
+echo "2.2.1.1. Can toggle live"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_enable_chip   _sysfs.0
+teardown_2_2
+
+echo "2.2.1.2. Can't add/remove line"
+setup_2_2
+mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
+rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
+teardown_2_2
+
+echo "2.2.1.3. Can't modify line key"
+setup_2_2
+echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/key" 2> /dev/null && \
+	fail "lookup key unexpectedly updated"
+teardown_2_2
+
+echo "2.2.1.4. Can't modify line name"
+setup_2_2
+echo "new0" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/name" 2> /dev/null && \
+	fail "name unexpectedly updated"
+teardown_2_2
+
+echo "2.2.1.5. Can't modify line offset"
+setup_2_2
+echo "5" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/offset" 2> /dev/null && \
+	fail "offset unexpectedly updated"
+teardown_2_2
+
+echo "2.2.2. While waiting for deferred probe"
+
+echo "2.2.2.1. Can't add/remove line despite live = 0"
+sim_disable_chip chip0
+setup_2_2
+mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
+rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
+teardown_2_2
+sim_enable_chip chip0
+
+echo "2.2.2.2. Can't modify line key"
+sim_disable_chip chip0
+setup_2_2
+echo "chip1_bank1" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/key" 2> /dev/null && \
+	fail "lookup key unexpectedly updated"
+teardown_2_2
+sim_enable_chip chip0
+
+echo "2.2.2.3. Can't modify line name"
+sim_disable_chip chip0
+setup_2_2
+echo "new0" > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/name" 2> /dev/null && \
+	fail "name unexpectedly updated"
+teardown_2_2
+sim_enable_chip chip0
+
+echo "2.2.2.4. Can't modify line offset"
+sim_disable_chip chip0
+setup_2_2
+echo 5 > "$CONFIGFS_AGG_DIR/_sysfs.0/line0/offset" 2> /dev/null && \
+	fail "offset unexpectedly updated"
+teardown_2_2
+sim_enable_chip chip0
+
+echo "2.2.2.5. Can't toggle live"
+sim_disable_chip chip0
+setup_2_2
+test "$(cat "$CONFIGFS_AGG_DIR/_sysfs.0/live")" = 0 || fail "chip unexpectedly alive"
+echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+teardown_2_2
+sim_enable_chip chip0
+
+echo "2.2.3. While offline"
+
+echo "2.2.3.1. Can't add/remove line despite live = 0"
+setup_2_2
+agg_disable_chip _sysfs.0
+mkdir "$CONFIGFS_AGG_DIR/_sysfs.0/line2" 2> /dev/null && fail "line unexpectedly added"
+rmdir "$CONFIGFS_AGG_DIR/_sysfs.0/line1" 2> /dev/null && fail "line unexpectedly removed"
+teardown_2_2
+
+echo "2.2.3.2. Line key can be modified"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_key       _sysfs.0 line0 "$(sim_get_chip_label chip0 bank1)"
+agg_set_key       _sysfs.0 line1 "$(sim_get_chip_label chip1 bank1)"
+agg_enable_chip   _sysfs.0
+teardown_2_2
+
+echo "2.2.3.3. Line name can be modified"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_line_name _sysfs.0 line0 new0
+agg_set_line_name _sysfs.0 line1 new1
+agg_enable_chip   _sysfs.0
+test "$(agg_get_line_name _sysfs.0 0)" = "new0" || fail "line name is unset"
+test "$(agg_get_line_name _sysfs.0 1)" = "new1" || fail "line name is unset"
+teardown_2_2
+
+echo "2.2.3.4. Line offset can be modified"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_offset    _sysfs.0 line0 5
+agg_set_offset    _sysfs.0 line1 7
+agg_enable_chip   _sysfs.0
+teardown_2_2
+
+echo "2.2.3.5. Can re-enable a chip with valid reconfiguration"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_key       _sysfs.0 line0 "$(sim_get_chip_label chip1 bank1)"
+agg_set_offset    _sysfs.0 line0 15
+agg_set_key       _sysfs.0 line1 "$(sim_get_chip_label chip0 bank1)"
+agg_set_offset    _sysfs.0 line0 14
+agg_enable_chip   _sysfs.0
+teardown_2_2
+
+echo "2.2.3.6. Can't re-enable a chip with invalid reconfiguration"
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_key       _sysfs.0 line0 invalidkey
+echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+teardown_2_2
+setup_2_2
+agg_disable_chip  _sysfs.0
+agg_set_offset    _sysfs.0 line0 99
+echo 1 > "$CONFIGFS_AGG_DIR/_sysfs.0/live" 2> /dev/null && fail "chip unexpectedly enabled"
+teardown_2_2
+
+echo "3. Module unload"
+
+echo "3.1. Can't unload module if there is at least one device created via configfs"
+agg_create_chip agg0
+modprobe -r gpio-aggregator 2> /dev/null
+test -d /sys/module/gpio_aggregator || fail "module unexpectedly unloaded"
+agg_remove_chip agg0
+
+echo "3.2. Can unload module if there is no device created via configfs"
+echo "chip0_bank0 1 chip1_bank0 3" > "$SYSFS_AGG_DIR/new_device"
+modprobe -r gpio-aggregator 2> /dev/null
+test -d /sys/module/gpio_aggregator && fail "module unexpectedly remains to be loaded"
+modprobe gpio-aggregator 2> /dev/null
+
+echo "4. GPIO forwarder functional"
+SETTINGS="chip0:bank0:2 chip0:bank1:4 chip1:bank0:6 chip1:bank1:8"
+setup_4() {
+	local OFFSET=0
+	agg_create_chip agg0
+	for SETTING in $SETTINGS; do
+		CHIP=$(echo "$SETTING" | cut -d: -f1)
+		BANK=$(echo "$SETTING" | cut -d: -f2)
+		LINE=$(echo "$SETTING" | cut -d: -f3)
+		agg_create_line agg0 "line${OFFSET}"
+		agg_set_key     agg0 "line${OFFSET}" "$(sim_get_chip_label "$CHIP" "$BANK")"
+		agg_set_offset  agg0 "line${OFFSET}" "$LINE"
+		OFFSET=$(expr $OFFSET + 1)
+	done
+	agg_enable_chip agg0
+}
+teardown_4() {
+	agg_configfs_cleanup
+}
+
+echo "4.1. Forwarding set values"
+setup_4
+OFFSET=0
+for SETTING in $SETTINGS; do
+	CHIP=$(echo "$SETTING" | cut -d: -f1)
+	BANK=$(echo "$SETTING" | cut -d: -f2)
+	LINE=$(echo "$SETTING" | cut -d: -f3)
+	DEVNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/dev_name")
+	CHIPNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name")
+	VAL_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio${LINE}/value"
+	test $(cat $VAL_PATH) = "0" || fail "incorrect value read from sysfs"
+	$BASE_DIR/gpio-mockup-cdev -s 1 "/dev/$(agg_configfs_chip_name agg0)" "$OFFSET" &
+	mock_pid=$!
+	sleep 0.1 # FIXME Any better way?
+	test "$(cat $VAL_PATH)" = "1" || fail "incorrect value read from sysfs"
+	kill "$mock_pid"
+	OFFSET=$(expr $OFFSET + 1)
+done
+teardown_4
+
+echo "4.2. Forwarding set config"
+setup_4
+OFFSET=0
+for SETTING in $SETTINGS; do
+	CHIP=$(echo "$SETTING" | cut -d: -f1)
+	BANK=$(echo "$SETTING" | cut -d: -f2)
+	LINE=$(echo "$SETTING" | cut -d: -f3)
+	DEVNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/dev_name")
+	CHIPNAME=$(cat "$CONFIGFS_SIM_DIR/$CHIP/$BANK/chip_name")
+	VAL_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio${LINE}/value"
+	$BASE_DIR/gpio-mockup-cdev -b pull-up "/dev/$(agg_configfs_chip_name agg0)" "$OFFSET"
+	test $(cat "$VAL_PATH") = "1" || fail "incorrect value read from sysfs"
+	OFFSET=$(expr $OFFSET + 1)
+done
+teardown_4
+
+echo "5. Race condition verification"
+
+echo "5.1. Stress test of new_device/delete_device and module load/unload"
+for _ in $(seq 1000); do
+	{
+		echo "dummy 0" > "$SYSFS_AGG_DIR/new_device"
+		cat "$CONFIGFS_AGG_DIR/_sysfs.0/dev_name" > "$SYSFS_AGG_DIR/delete_device"
+	} 2> /dev/null
+done &
+writer_pid=$!
+while kill -0 "$writer_pid" 2> /dev/null; do
+	{
+		modprobe gpio-aggregator
+		modprobe -r gpio-aggregator
+	} 2> /dev/null
+done
+
+echo "GPIO $MODULE test PASS"
diff --git a/tools/testing/selftests/gpio/gpio-chip-info.c b/tools/testing/selftests/gpio/gpio-chip-info.c
new file mode 100644
index 000000000000..fdc07e742fba
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-chip-info.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * GPIO character device helper for reading chip information.
+ *
+ * Copyright (C) 2021 Bartosz Golaszewski <brgl@bgdev.pl>
+ */
+
+#include <fcntl.h>
+#include <linux/gpio.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+static void print_usage(void)
+{
+	printf("usage:\n");
+	printf("  gpio-chip-info <chip path> [name|label|num-lines]\n");
+}
+
+int main(int argc, char **argv)
+{
+	struct gpiochip_info info;
+	int fd, ret;
+
+	if (argc != 3) {
+		print_usage();
+		return EXIT_FAILURE;
+	}
+
+	fd = open(argv[1], O_RDWR);
+	if (fd < 0) {
+		perror("unable to open the GPIO chip");
+		return EXIT_FAILURE;
+	}
+
+	memset(&info, 0, sizeof(info));
+	ret = ioctl(fd, GPIO_GET_CHIPINFO_IOCTL, &info);
+	if (ret) {
+		perror("chip info ioctl failed");
+		return EXIT_FAILURE;
+	}
+
+	if (strcmp(argv[2], "name") == 0) {
+		printf("%s\n", info.name);
+	} else if (strcmp(argv[2], "label") == 0) {
+		printf("%s\n", info.label);
+	} else if (strcmp(argv[2], "num-lines") == 0) {
+		printf("%u\n", info.lines);
+	} else {
+		fprintf(stderr, "unknown command: %s\n", argv[2]);
+		return EXIT_FAILURE;
+	}
+
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/gpio/gpio-line-name.c b/tools/testing/selftests/gpio/gpio-line-name.c
new file mode 100644
index 000000000000..e635cfadbded
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-line-name.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * GPIO character device helper for reading line names.
+ *
+ * Copyright (C) 2021 Bartosz Golaszewski <brgl@bgdev.pl>
+ */
+
+#include <fcntl.h>
+#include <linux/gpio.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+
+static void print_usage(void)
+{
+	printf("usage:\n");
+	printf("  gpio-line-name <chip path> <line offset>\n");
+}
+
+int main(int argc, char **argv)
+{
+	struct gpio_v2_line_info info;
+	int fd, ret;
+	char *endp;
+
+	if (argc != 3) {
+		print_usage();
+		return EXIT_FAILURE;
+	}
+
+	fd = open(argv[1], O_RDWR);
+	if (fd < 0) {
+		perror("unable to open the GPIO chip");
+		return EXIT_FAILURE;
+	}
+
+	memset(&info, 0, sizeof(info));
+	info.offset = strtoul(argv[2], &endp, 10);
+	if (*endp != '\0') {
+		print_usage();
+		return EXIT_FAILURE;
+	}
+
+	ret = ioctl(fd, GPIO_V2_GET_LINEINFO_IOCTL, &info);
+	if (ret) {
+		perror("line info ioctl failed");
+		return EXIT_FAILURE;
+	}
+
+	printf("%s\n", info.name);
+
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/gpio/gpio-mockup-cdev.c b/tools/testing/selftests/gpio/gpio-mockup-cdev.c
new file mode 100644
index 000000000000..d1640f44f8ac
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-mockup-cdev.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * GPIO mockup cdev test helper
+ *
+ * Copyright (C) 2020 Kent Gibson
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <linux/gpio.h>
+
+#define CONSUMER	"gpio-mockup-cdev"
+
+static int request_line_v2(int cfd, unsigned int offset,
+			   uint64_t flags, unsigned int val)
+{
+	struct gpio_v2_line_request req;
+	int ret;
+
+	memset(&req, 0, sizeof(req));
+	req.num_lines = 1;
+	req.offsets[0] = offset;
+	req.config.flags = flags;
+	strcpy(req.consumer, CONSUMER);
+	if (flags & GPIO_V2_LINE_FLAG_OUTPUT) {
+		req.config.num_attrs = 1;
+		req.config.attrs[0].mask = 1;
+		req.config.attrs[0].attr.id = GPIO_V2_LINE_ATTR_ID_OUTPUT_VALUES;
+		if (val)
+			req.config.attrs[0].attr.values = 1;
+	}
+	ret = ioctl(cfd, GPIO_V2_GET_LINE_IOCTL, &req);
+	if (ret == -1)
+		return -errno;
+	return req.fd;
+}
+
+
+static int get_value_v2(int lfd)
+{
+	struct gpio_v2_line_values vals;
+	int ret;
+
+	memset(&vals, 0, sizeof(vals));
+	vals.mask = 1;
+	ret = ioctl(lfd, GPIO_V2_LINE_GET_VALUES_IOCTL, &vals);
+	if (ret == -1)
+		return -errno;
+	return vals.bits & 0x1;
+}
+
+static int request_line_v1(int cfd, unsigned int offset,
+			   uint32_t flags, unsigned int val)
+{
+	struct gpiohandle_request req;
+	int ret;
+
+	memset(&req, 0, sizeof(req));
+	req.lines = 1;
+	req.lineoffsets[0] = offset;
+	req.flags = flags;
+	strcpy(req.consumer_label, CONSUMER);
+	if (flags & GPIOHANDLE_REQUEST_OUTPUT)
+		req.default_values[0] = val;
+
+	ret = ioctl(cfd, GPIO_GET_LINEHANDLE_IOCTL, &req);
+	if (ret == -1)
+		return -errno;
+	return req.fd;
+}
+
+static int get_value_v1(int lfd)
+{
+	struct gpiohandle_data vals;
+	int ret;
+
+	memset(&vals, 0, sizeof(vals));
+	ret = ioctl(lfd, GPIOHANDLE_GET_LINE_VALUES_IOCTL, &vals);
+	if (ret == -1)
+		return -errno;
+	return vals.values[0];
+}
+
+static void usage(char *prog)
+{
+	printf("Usage: %s [-l] [-b <bias>] [-s <value>] [-u <uAPI>] <gpiochip> <offset>\n", prog);
+	printf("        -b: set line bias to one of pull-down, pull-up, disabled\n");
+	printf("               (default is to leave bias unchanged):\n");
+	printf("        -l: set line active low (default is active high)\n");
+	printf("        -s: set line value (default is to get line value)\n");
+	printf("        -u: uAPI version to use (default is 2)\n");
+	exit(-1);
+}
+
+static int wait_signal(void)
+{
+	int sig;
+	sigset_t wset;
+
+	sigemptyset(&wset);
+	sigaddset(&wset, SIGHUP);
+	sigaddset(&wset, SIGINT);
+	sigaddset(&wset, SIGTERM);
+	sigwait(&wset, &sig);
+
+	return sig;
+}
+
+int main(int argc, char *argv[])
+{
+	char *chip;
+	int opt, ret, cfd, lfd;
+	unsigned int offset, val = 0, abiv;
+	uint32_t flags_v1;
+	uint64_t flags_v2;
+
+	abiv = 2;
+	ret = 0;
+	flags_v1 = GPIOHANDLE_REQUEST_INPUT;
+	flags_v2 = GPIO_V2_LINE_FLAG_INPUT;
+
+	while ((opt = getopt(argc, argv, "lb:s:u:")) != -1) {
+		switch (opt) {
+		case 'l':
+			flags_v1 |= GPIOHANDLE_REQUEST_ACTIVE_LOW;
+			flags_v2 |= GPIO_V2_LINE_FLAG_ACTIVE_LOW;
+			break;
+		case 'b':
+			if (strcmp("pull-up", optarg) == 0) {
+				flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_UP;
+				flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_UP;
+			} else if (strcmp("pull-down", optarg) == 0) {
+				flags_v1 |= GPIOHANDLE_REQUEST_BIAS_PULL_DOWN;
+				flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_PULL_DOWN;
+			} else if (strcmp("disabled", optarg) == 0) {
+				flags_v1 |= GPIOHANDLE_REQUEST_BIAS_DISABLE;
+				flags_v2 |= GPIO_V2_LINE_FLAG_BIAS_DISABLED;
+			}
+			break;
+		case 's':
+			val = atoi(optarg);
+			flags_v1 &= ~GPIOHANDLE_REQUEST_INPUT;
+			flags_v1 |= GPIOHANDLE_REQUEST_OUTPUT;
+			flags_v2 &= ~GPIO_V2_LINE_FLAG_INPUT;
+			flags_v2 |= GPIO_V2_LINE_FLAG_OUTPUT;
+			break;
+		case 'u':
+			abiv = atoi(optarg);
+			break;
+		default:
+			usage(argv[0]);
+		}
+	}
+
+	if (argc < optind + 2)
+		usage(argv[0]);
+
+	chip = argv[optind];
+	offset = atoi(argv[optind + 1]);
+
+	cfd = open(chip, 0);
+	if (cfd == -1) {
+		fprintf(stderr, "Failed to open %s: %s\n", chip, strerror(errno));
+		return -errno;
+	}
+
+	if (abiv == 1)
+		lfd = request_line_v1(cfd, offset, flags_v1, val);
+	else
+		lfd = request_line_v2(cfd, offset, flags_v2, val);
+
+	close(cfd);
+
+	if (lfd < 0) {
+		fprintf(stderr, "Failed to request %s:%d: %s\n", chip, offset, strerror(-lfd));
+		return lfd;
+	}
+
+	if (flags_v2 & GPIO_V2_LINE_FLAG_OUTPUT) {
+		wait_signal();
+	} else {
+		if (abiv == 1)
+			ret = get_value_v1(lfd);
+		else
+			ret = get_value_v2(lfd);
+	}
+
+	close(lfd);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
new file mode 100755
index 000000000000..2d2e5d8763b6
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
@@ -0,0 +1,77 @@
+
+# SPDX-License-Identifier: GPL-2.0
+
+# Overrides functions in gpio-mockup.sh to test using the GPIO SYSFS uAPI
+
+SYSFS=`grep -w sysfs /proc/mounts | cut -f2 -d' '`
+[ -d "$SYSFS" ] || skip "sysfs is not mounted"
+
+GPIO_SYSFS="${SYSFS}/class/gpio"
+[ -d "$GPIO_SYSFS" ] || skip "CONFIG_GPIO_SYSFS is not selected"
+
+PLATFORM_SYSFS=$SYSFS/devices/platform
+
+sysfs_nr=
+sysfs_ldir=
+
+# determine the sysfs GPIO number given the $chip and $offset
+# e.g. gpiochip1:32
+find_sysfs_nr()
+{
+	# e.g. /sys/devices/platform/gpio-mockup.1/gpiochip1
+	local platform=$(find $PLATFORM_SYSFS -mindepth 2 -maxdepth 2 -type d -name $chip)
+	[ "$platform" ] || fail "can't find platform of $chip"
+	# e.g. /sys/devices/platform/gpio-mockup.1/gpio/gpiochip508/base
+	local base=$(find ${platform%/*}/gpio/ -mindepth 2 -maxdepth 2 -type f -name base)
+	[ "$base" ] || fail "can't find base of $chip"
+	sysfs_nr=$(($(< "$base") + $offset))
+	sysfs_ldir="$GPIO_SYSFS/gpio$sysfs_nr"
+}
+
+acquire_line()
+{
+	[ "$sysfs_nr" ] && return
+	find_sysfs_nr
+	echo "$sysfs_nr" > "$GPIO_SYSFS/export"
+}
+
+# The helpers being overridden...
+get_line()
+{
+	[ -e "$sysfs_ldir/value" ] && echo $(< "$sysfs_ldir/value")
+}
+
+set_line()
+{
+	acquire_line
+
+	for option in $*; do
+		case $option in
+		active-high)
+			echo 0 > "$sysfs_ldir/active_low"
+			;;
+		active-low)
+			echo 1 > "$sysfs_ldir/active_low"
+			;;
+		input)
+			echo "in" > "$sysfs_ldir/direction"
+			;;
+		0)
+			echo "out" > "$sysfs_ldir/direction"
+			echo 0 > "$sysfs_ldir/value"
+			;;
+		1)
+			echo "out" > "$sysfs_ldir/direction"
+			echo 1 > "$sysfs_ldir/value"
+			;;
+		esac
+	done
+}
+
+release_line()
+{
+	[ "$sysfs_nr" ] || return 0
+	echo "$sysfs_nr" > "$GPIO_SYSFS/unexport"
+	sysfs_nr=
+	sysfs_ldir=
+}
diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh
new file mode 100755
index 000000000000..fc2dd4c24d06
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-mockup.sh
@@ -0,0 +1,400 @@
+#!/bin/bash -efu
+# SPDX-License-Identifier: GPL-2.0
+
+#exit status
+#0: success
+#1: fail
+#4: skip test - including run as non-root user
+
+BASE=${0%/*}
+DEBUGFS=
+GPIO_DEBUGFS=
+dev_type="cdev"
+module="gpio-mockup"
+verbose=
+full_test=
+random=
+uapi_opt=
+active_opt=
+bias_opt=
+line_set_pid=
+
+# Kselftest return codes
+ksft_fail=1
+ksft_skip=4
+
+usage()
+{
+	echo "Usage:"
+	echo "$0 [-frv] [-t type]"
+	echo "-f:  full test (minimal set run by default)"
+	echo "-r:  test random lines as well as fence posts"
+	echo "-t:  interface type:"
+	echo "      cdev (character device ABI) - default"
+	echo "      cdev_v1 (deprecated character device ABI)"
+	echo "      sysfs (deprecated SYSFS ABI)"
+	echo "-v:  verbose progress reporting"
+	exit $ksft_fail
+}
+
+skip()
+{
+	echo "$*" >&2
+	echo "GPIO $module test SKIP"
+	exit $ksft_skip
+}
+
+prerequisite()
+{
+	[ $(id -u) -eq 0 ] || skip "must be run as root"
+
+	DEBUGFS=$(grep -w debugfs /proc/mounts | cut -f2 -d' ')
+	[ -d "$DEBUGFS" ] || skip "debugfs is not mounted"
+
+	GPIO_DEBUGFS=$DEBUGFS/$module
+}
+
+remove_module()
+{
+	modprobe -r -q $module
+}
+
+cleanup()
+{
+	set +e
+	release_line
+	remove_module
+	jobs -p | xargs -r kill > /dev/null 2>&1
+}
+
+fail()
+{
+	echo "test failed: $*" >&2
+	echo "GPIO $module test FAIL"
+	exit $ksft_fail
+}
+
+try_insert_module()
+{
+	modprobe -q $module "$1" || fail "insert $module failed with error $?"
+}
+
+log()
+{
+	[ -z "$verbose" ] || echo "$*"
+}
+
+# The following line helpers, release_Line, get_line and set_line, all
+# make use of the global $chip and $offset variables.
+#
+# This implementation drives the GPIO character device (cdev) uAPI.
+# Other implementations may override these to test different uAPIs.
+
+# Release any resources related to the line
+release_line()
+{
+	[ "$line_set_pid" ] && kill $line_set_pid && wait $line_set_pid || true
+	line_set_pid=
+}
+
+# Read the current value of the line
+get_line()
+{
+	release_line
+
+	local cdev_opts=${uapi_opt}${active_opt}
+	$BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset
+	echo $?
+}
+
+# Set the state of the line
+#
+# Changes to line configuration are provided as parameters.
+# The line is assumed to be an output if the line value 0 or 1 is
+# specified, else an input.
+set_line()
+{
+	local val=
+
+	release_line
+
+	# parse config options...
+	for option in $*; do
+		case $option in
+		active-low)
+			active_opt="-l "
+			;;
+		active-high)
+			active_opt=
+			;;
+		bias-none)
+			bias_opt=
+			;;
+		pull-down)
+			bias_opt="-bpull-down "
+			;;
+		pull-up)
+			bias_opt="-bpull-up "
+			;;
+		0)
+			val=0
+			;;
+		1)
+			val=1
+			;;
+		esac
+	done
+
+	local cdev_opts=${uapi_opt}${active_opt}
+	if [ "$val" ]; then
+		$BASE/gpio-mockup-cdev $cdev_opts -s$val /dev/$chip $offset &
+		# failure to set is detected by reading mockup and toggling values
+		line_set_pid=$!
+		# allow for gpio-mockup-cdev to launch and request line
+		# (there is limited value in checking if line has been requested)
+		sleep 0.01
+	elif [ "$bias_opt" ]; then
+		cdev_opts=${cdev_opts}${bias_opt}
+		$BASE/gpio-mockup-cdev $cdev_opts /dev/$chip $offset || true
+	fi
+}
+
+assert_line()
+{
+	local val
+	# don't need any retry here as set_mock allows for propagation
+	val=$(get_line)
+	[ "$val" = "$1" ] || fail "line value is ${val:-empty} when $1 was expected"
+}
+
+# The following mockup helpers all make use of the $mock_line
+assert_mock()
+{
+	local backoff_wait=10
+	local retry=0
+	local val
+	# retry allows for set propagation from uAPI to mockup
+	while true; do
+		val=$(< $mock_line)
+		[ "$val" = "$1" ] && break
+		retry=$((retry + 1))
+		[ $retry -lt 5 ] || fail "mockup $mock_line value ${val:-empty} when $1 expected"
+		sleep $(printf "%0.2f" $((backoff_wait))e-3)
+		backoff_wait=$((backoff_wait * 2))
+	done
+}
+
+set_mock()
+{
+	echo "$1" > $mock_line
+	# allow for set propagation - so we won't be in a race with set_line
+	assert_mock "$1"
+}
+
+# test the functionality of a line
+#
+# The line is set from the mockup side and is read from the userspace side
+# (input), and is set from the userspace side and is read from the mockup side
+# (output).
+#
+# Setting the mockup pull using the userspace interface bias settings is
+# tested where supported by the userspace interface (cdev).
+test_line()
+{
+	chip=$1
+	offset=$2
+	log "test_line $chip $offset"
+	mock_line=$GPIO_DEBUGFS/$chip/$offset
+	[ -e "$mock_line" ] || fail "missing line $chip:$offset"
+
+	# test input active-high
+	set_mock 1
+	set_line input active-high
+	assert_line 1
+	set_mock 0
+	assert_line 0
+	set_mock 1
+	assert_line 1
+
+	if [ "$full_test" ]; then
+		if [ "$dev_type" != "sysfs" ]; then
+			# test pulls
+			set_mock 0
+			set_line input pull-up
+			assert_line 1
+			set_mock 0
+			assert_line 0
+
+			set_mock 1
+			set_line input pull-down
+			assert_line 0
+			set_mock 1
+			assert_line 1
+
+			set_line bias-none
+		fi
+
+		# test input active-low
+		set_mock 0
+		set_line active-low
+		assert_line 1
+		set_mock 1
+		assert_line 0
+		set_mock 0
+		assert_line 1
+
+		# test output active-high
+		set_mock 1
+		set_line active-high 0
+		assert_mock 0
+		set_line 1
+		assert_mock 1
+		set_line 0
+		assert_mock 0
+	fi
+
+	# test output active-low
+	set_mock 0
+	set_line active-low 0
+	assert_mock 1
+	set_line 1
+	assert_mock 0
+	set_line 0
+	assert_mock 1
+
+	release_line
+}
+
+test_no_line()
+{
+	log test_no_line "$*"
+	[ ! -e "$GPIO_DEBUGFS/$1/$2" ] || fail "unexpected line $1:$2"
+}
+
+# Load the module and check that the expected number of gpiochips, with the
+# expected number of lines, are created and are functional.
+#
+# $1 is the gpio_mockup_ranges parameter for the module
+# The remaining parameters are the number of lines, n, expected for each of
+# the gpiochips expected to be created.
+#
+# For each gpiochip the fence post lines, 0 and n-1, are tested, and the
+# line on the far side of the fence post, n, is tested to not exist.
+#
+# If the $random flag is set then a random line in the middle of the
+# gpiochip is tested as well.
+insmod_test()
+{
+	local ranges=
+	local gc=
+	local width=
+
+	[ "${1:-}" ] || fail "missing ranges"
+	ranges=$1 ; shift
+	try_insert_module "gpio_mockup_ranges=$ranges"
+	log "GPIO $module test with ranges: <$ranges>:"
+	# e.g. /sys/kernel/debug/gpio-mockup/gpiochip1
+	gpiochip=$(find "$DEBUGFS/$module/" -name gpiochip* -type d | sort)
+	for chip in $gpiochip; do
+		gc=${chip##*/}
+		[ "${1:-}" ] || fail "unexpected chip - $gc"
+		width=$1 ; shift
+		test_line $gc 0
+		if [ "$random" -a $width -gt 2 ]; then
+			test_line $gc $((RANDOM % ($width - 2) + 1))
+		fi
+		test_line $gc $(($width - 1))
+		test_no_line $gc $width
+	done
+	[ "${1:-}" ] && fail "missing expected chip of width $1"
+	remove_module || fail "failed to remove module with error $?"
+}
+
+while getopts ":frvt:" opt; do
+	case $opt in
+	f)
+		full_test=true
+		;;
+	r)
+		random=true
+		;;
+	t)
+		dev_type=$OPTARG
+		;;
+	v)
+		verbose=true
+		;;
+	*)
+		usage
+		;;
+	esac
+done
+shift $((OPTIND - 1))
+
+[ "${1:-}" ] && fail "unknown argument '$1'"
+
+prerequisite
+
+trap 'exit $ksft_fail' SIGTERM SIGINT
+trap cleanup EXIT
+
+case "$dev_type" in
+sysfs)
+	source $BASE/gpio-mockup-sysfs.sh
+	echo "WARNING: gpio sysfs ABI is deprecated."
+	;;
+cdev_v1)
+	echo "WARNING: gpio cdev ABI v1 is deprecated."
+	uapi_opt="-u1 "
+	;;
+cdev)
+	;;
+*)
+	fail "unknown interface type: $dev_type"
+	;;
+esac
+
+remove_module || fail "can't remove existing $module module"
+
+# manual gpio allocation tests fail if a physical chip already exists
+[ "$full_test" -a -e "/dev/gpiochip0" ] && skip "full tests conflict with gpiochip0"
+
+echo "1.  Module load tests"
+echo "1.1.  dynamic allocation of gpio"
+insmod_test "-1,32" 32
+insmod_test "-1,23,-1,32" 23 32
+insmod_test "-1,23,-1,26,-1,32" 23 26 32
+if [ "$full_test" ]; then
+	echo "1.2.  manual allocation of gpio"
+	insmod_test "0,32" 32
+	insmod_test "0,32,32,60" 32 28
+	insmod_test "0,32,40,64,64,96" 32 24 32
+	echo "1.3.  dynamic and manual allocation of gpio"
+	insmod_test "-1,32,32,62" 32 30
+	insmod_test "-1,22,-1,23,0,24,32,64" 22 23 24 32
+	insmod_test "-1,32,32,60,-1,29" 32 28 29
+	insmod_test "-1,32,40,64,-1,5" 32 24 5
+	insmod_test "0,32,32,44,-1,22,-1,31" 32 12 22 31
+fi
+echo "2.  Module load error tests"
+echo "2.1 no lines defined"
+insmod_test "0,0"
+if [ "$full_test" ]; then
+	echo "2.2 ignore range overlap"
+	insmod_test "0,32,0,1" 32
+	insmod_test "0,32,1,5" 32
+	insmod_test "0,32,30,35" 32
+	insmod_test "0,32,31,32" 32
+	insmod_test "10,32,30,35" 22
+	insmod_test "10,32,9,14" 22
+	insmod_test "0,32,20,21,40,56" 32 16
+	insmod_test "0,32,32,64,32,40" 32 32
+	insmod_test "0,32,32,64,36,37" 32 32
+	insmod_test "0,32,35,64,34,36" 32 29
+	insmod_test "0,30,35,64,35,45" 30 29
+	insmod_test "0,32,40,56,30,33" 32 16
+	insmod_test "0,32,40,56,30,41" 32 16
+	insmod_test "0,32,40,56,39,45" 32 16
+fi
+
+echo "GPIO $module test PASS"
diff --git a/tools/testing/selftests/gpio/gpio-sim.sh b/tools/testing/selftests/gpio/gpio-sim.sh
new file mode 100755
index 000000000000..bbc29ed9c60a
--- /dev/null
+++ b/tools/testing/selftests/gpio/gpio-sim.sh
@@ -0,0 +1,418 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 Bartosz Golaszewski <brgl@bgdev.pl>
+
+BASE_DIR=`dirname $0`
+CONFIGFS_DIR="/sys/kernel/config/gpio-sim"
+MODULE="gpio-sim"
+
+fail() {
+	echo "$*" >&2
+	echo "GPIO $MODULE test FAIL"
+	exit 1
+}
+
+skip() {
+	echo "$*" >&2
+	echo "GPIO $MODULE test SKIP"
+	exit 4
+}
+
+remove_chip() {
+	local CHIP=$1
+
+	for FILE in $CONFIGFS_DIR/$CHIP/*; do
+		BANK=`basename $FILE`
+		if [ "$BANK" = "live" -o "$BANK" = "dev_name" ]; then
+			continue
+		fi
+
+		LINES=`ls $CONFIGFS_DIR/$CHIP/$BANK/ | grep -E ^line`
+		if [ "$?" = 0 ]; then
+			for LINE in $LINES; do
+				if [ -e $CONFIGFS_DIR/$CHIP/$BANK/$LINE/hog ]; then
+					rmdir $CONFIGFS_DIR/$CHIP/$BANK/$LINE/hog || \
+						fail "Unable to remove the hog"
+				fi
+
+				rmdir $CONFIGFS_DIR/$CHIP/$BANK/$LINE || \
+					fail "Unable to remove the line"
+			done
+		fi
+
+		rmdir $CONFIGFS_DIR/$CHIP/$BANK
+	done
+
+	rmdir $CONFIGFS_DIR/$CHIP || fail "Unable to remove the chip"
+}
+
+create_chip() {
+	local CHIP=$1
+
+	mkdir $CONFIGFS_DIR/$CHIP
+}
+
+create_bank() {
+	local CHIP=$1
+	local BANK=$2
+
+	mkdir $CONFIGFS_DIR/$CHIP/$BANK
+}
+
+set_label() {
+	local CHIP=$1
+	local BANK=$2
+	local LABEL=$3
+
+	echo $LABEL > $CONFIGFS_DIR/$CHIP/$BANK/label || fail "Unable to set the chip label"
+}
+
+set_num_lines() {
+	local CHIP=$1
+	local BANK=$2
+	local NUM_LINES=$3
+
+	echo $NUM_LINES > $CONFIGFS_DIR/$CHIP/$BANK/num_lines || \
+		fail "Unable to set the number of lines"
+}
+
+set_line_name() {
+	local CHIP=$1
+	local BANK=$2
+	local OFFSET=$3
+	local NAME=$4
+	local LINE_DIR=$CONFIGFS_DIR/$CHIP/$BANK/line$OFFSET
+
+	test -d $LINE_DIR || mkdir $LINE_DIR
+	echo $NAME > $LINE_DIR/name || fail "Unable to set the line name"
+}
+
+enable_chip() {
+	local CHIP=$1
+
+	echo 1 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to enable the chip"
+}
+
+disable_chip() {
+	local CHIP=$1
+
+	echo 0 > $CONFIGFS_DIR/$CHIP/live || fail "Unable to disable the chip"
+}
+
+configfs_cleanup() {
+	for CHIP in `ls $CONFIGFS_DIR/`; do
+		disable_chip $CHIP
+		remove_chip $CHIP
+	done
+}
+
+configfs_chip_name() {
+	local CHIP=$1
+	local BANK=$2
+
+	cat $CONFIGFS_DIR/$CHIP/$BANK/chip_name 2> /dev/null || \
+		fail "unable to read the chip name from configfs"
+}
+
+configfs_dev_name() {
+	local CHIP=$1
+
+	cat $CONFIGFS_DIR/$CHIP/dev_name 2> /dev/null || \
+		fail "unable to read the device name from configfs"
+}
+
+get_chip_num_lines() {
+	local CHIP=$1
+	local BANK=$2
+
+	$BASE_DIR/gpio-chip-info /dev/`configfs_chip_name $CHIP $BANK` num-lines || \
+		fail "unable to read the number of lines from the character device"
+}
+
+get_chip_label() {
+	local CHIP=$1
+	local BANK=$2
+
+	$BASE_DIR/gpio-chip-info /dev/`configfs_chip_name $CHIP $BANK` label || \
+		fail "unable to read the chip label from the character device"
+}
+
+get_line_name() {
+	local CHIP=$1
+	local BANK=$2
+	local OFFSET=$3
+
+	$BASE_DIR/gpio-line-name /dev/`configfs_chip_name $CHIP $BANK` $OFFSET || \
+		fail "unable to read the line name from the character device"
+}
+
+sysfs_set_pull() {
+	local DEV=$1
+	local BANK=$2
+	local OFFSET=$3
+	local PULL=$4
+	local DEVNAME=`configfs_dev_name $DEV`
+	local CHIPNAME=`configfs_chip_name $DEV $BANK`
+	local SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio$OFFSET/pull"
+
+	echo $PULL > $SYSFS_PATH || fail "Unable to set line pull in sysfs"
+}
+
+# Load the gpio-sim module. This will pull in configfs if needed too.
+modprobe gpio-sim || skip "unable to load the gpio-sim module"
+# Make sure configfs is mounted at /sys/kernel/config. Wait a bit if needed.
+for IDX in `seq 5`; do
+	if [ "$IDX" -eq "5" ]; then
+		skip "configfs not mounted at /sys/kernel/config"
+	fi
+
+	mountpoint -q /sys/kernel/config && break
+	sleep 0.1
+done
+# If the module was already loaded: remove all previous chips
+configfs_cleanup
+
+trap "exit 1" SIGTERM SIGINT
+trap configfs_cleanup EXIT
+
+echo "1. chip_name and dev_name attributes"
+
+echo "1.1. Chip name is communicated to user"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+test -n `cat $CONFIGFS_DIR/chip/bank/chip_name` || fail "chip_name doesn't work"
+disable_chip chip
+remove_chip chip
+
+echo "1.2. chip_name returns 'none' if the chip is still pending"
+create_chip chip
+create_bank chip bank
+test "`cat $CONFIGFS_DIR/chip/bank/chip_name`" = "none" || \
+	fail "chip_name doesn't return 'none' for a pending chip"
+remove_chip chip
+
+echo "1.3. Device name is communicated to user"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+test -n `cat $CONFIGFS_DIR/chip/dev_name` || fail "dev_name doesn't work"
+disable_chip chip
+remove_chip chip
+
+echo "2. Creating and configuring simulated chips"
+
+echo "2.1. Default number of lines is 1"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+test "`get_chip_num_lines chip bank`" = "1" || fail "default number of lines is not 1"
+disable_chip chip
+remove_chip chip
+
+echo "2.2. Number of lines can be specified"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 16
+enable_chip chip
+test "`get_chip_num_lines chip bank`" = "16" || fail "number of lines is not 16"
+disable_chip chip
+remove_chip chip
+
+echo "2.3. Label can be set"
+create_chip chip
+create_bank chip bank
+set_label chip bank foobar
+enable_chip chip
+test "`get_chip_label chip bank`" = "foobar" || fail "label is incorrect"
+disable_chip chip
+remove_chip chip
+
+echo "2.4. Label can be left empty"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+test -z "`cat $CONFIGFS_DIR/chip/bank/label`" || fail "label is not empty"
+disable_chip chip
+remove_chip chip
+
+echo "2.5. Line names can be configured"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 16
+set_line_name chip bank 0 foo
+set_line_name chip bank 2 bar
+enable_chip chip
+test "`get_line_name chip bank 0`" = "foo" || fail "line name is incorrect"
+test "`get_line_name chip bank 2`" = "bar" || fail "line name is incorrect"
+disable_chip chip
+remove_chip chip
+
+echo "2.6. Line config can remain unused if offset is greater than number of lines"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 2
+set_line_name chip bank 5 foobar
+enable_chip chip
+test "`get_line_name chip bank 0`" = "" || fail "line name is incorrect"
+test "`get_line_name chip bank 1`" = "" || fail "line name is incorrect"
+disable_chip chip
+remove_chip chip
+
+echo "2.7. Line configfs directory names are sanitized"
+create_chip chip
+create_bank chip bank
+mkdir $CONFIGFS_DIR/chip/bank/line12foobar 2> /dev/null && \
+	fail "invalid configfs line name accepted"
+mkdir $CONFIGFS_DIR/chip/bank/line_no_offset 2> /dev/null && \
+	fail "invalid configfs line name accepted"
+remove_chip chip
+
+echo "2.8. Multiple chips can be created"
+CHIPS="chip0 chip1 chip2"
+for CHIP in $CHIPS; do
+	create_chip $CHIP
+	create_bank $CHIP bank
+	enable_chip $CHIP
+done
+for CHIP in $CHIPS; do
+  disable_chip $CHIP
+	remove_chip $CHIP
+done
+
+echo "2.9. Can't modify settings when chip is live"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+echo foobar > $CONFIGFS_DIR/chip/bank/label 2> /dev/null && \
+	fail "Setting label of a live chip should fail"
+echo 8 > $CONFIGFS_DIR/chip/bank/num_lines 2> /dev/null && \
+	fail "Setting number of lines of a live chip should fail"
+disable_chip chip
+remove_chip chip
+
+echo "2.10. Can't create line items when chip is live"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+mkdir $CONFIGFS_DIR/chip/bank/line0 2> /dev/null && fail "Creating line item should fail"
+disable_chip chip
+remove_chip chip
+
+echo "2.11. Probe errors are propagated to user-space"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 99999
+echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Probe error was not propagated"
+remove_chip chip
+
+echo "2.12. Cannot enable a chip without any GPIO banks"
+create_chip chip
+echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Chip enabled without any GPIO banks"
+remove_chip chip
+
+echo "2.13. Duplicate chip labels are not allowed"
+create_chip chip
+create_bank chip bank0
+set_label chip bank0 foobar
+create_bank chip bank1
+set_label chip bank1 foobar
+echo 1 > $CONFIGFS_DIR/chip/live 2> /dev/null && fail "Duplicate chip labels were not rejected"
+remove_chip chip
+
+echo "2.14. Lines can be hogged"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+mkdir -p $CONFIGFS_DIR/chip/bank/line4/hog
+enable_chip chip
+$BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 4 2> /dev/null && \
+	fail "Setting the value of a hogged line shouldn't succeed"
+disable_chip chip
+remove_chip chip
+
+echo "3. Controlling simulated chips"
+
+echo "3.1. Pull can be set over sysfs"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+enable_chip chip
+sysfs_set_pull chip bank 0 pull-up
+$BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 0
+test "$?" = "1" || fail "pull set incorrectly"
+sysfs_set_pull chip bank 0 pull-down
+$BASE_DIR/gpio-mockup-cdev /dev/`configfs_chip_name chip bank` 1
+test "$?" = "0" || fail "pull set incorrectly"
+disable_chip chip
+remove_chip chip
+
+echo "3.2. Pull can be read from sysfs"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+enable_chip chip
+DEVNAME=`configfs_dev_name chip`
+CHIPNAME=`configfs_chip_name chip bank`
+SYSFS_PATH=/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull
+test `cat $SYSFS_PATH` = "pull-down" || fail "reading the pull failed"
+sysfs_set_pull chip bank 0 pull-up
+test `cat $SYSFS_PATH` = "pull-up" || fail "reading the pull failed"
+disable_chip chip
+remove_chip chip
+
+echo "3.3. Incorrect input in sysfs is rejected"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+enable_chip chip
+DEVNAME=`configfs_dev_name chip`
+CHIPNAME=`configfs_chip_name chip bank`
+SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/pull"
+echo foobar > $SYSFS_PATH 2> /dev/null && fail "invalid input not detected"
+disable_chip chip
+remove_chip chip
+
+echo "3.4. Can't write to value"
+create_chip chip
+create_bank chip bank
+enable_chip chip
+DEVNAME=`configfs_dev_name chip`
+CHIPNAME=`configfs_chip_name chip bank`
+SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
+echo 1 > $SYSFS_PATH 2> /dev/null && fail "writing to 'value' succeeded unexpectedly"
+disable_chip chip
+remove_chip chip
+
+echo "4. Simulated GPIO chips are functional"
+
+echo "4.1. Values can be read from sysfs"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+enable_chip chip
+DEVNAME=`configfs_dev_name chip`
+CHIPNAME=`configfs_chip_name chip bank`
+SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
+test `cat $SYSFS_PATH` = "0" || fail "incorrect value read from sysfs"
+$BASE_DIR/gpio-mockup-cdev -s 1 /dev/`configfs_chip_name chip bank` 0 &
+sleep 0.1 # FIXME Any better way?
+test `cat $SYSFS_PATH` = "1" || fail "incorrect value read from sysfs"
+kill $!
+disable_chip chip
+remove_chip chip
+
+echo "4.2. Bias settings work correctly"
+create_chip chip
+create_bank chip bank
+set_num_lines chip bank 8
+enable_chip chip
+DEVNAME=`configfs_dev_name chip`
+CHIPNAME=`configfs_chip_name chip bank`
+SYSFS_PATH="/sys/devices/platform/$DEVNAME/$CHIPNAME/sim_gpio0/value"
+$BASE_DIR/gpio-mockup-cdev -b pull-up /dev/`configfs_chip_name chip bank` 0
+test `cat $SYSFS_PATH` = "1" || fail "bias setting does not work"
+disable_chip chip
+remove_chip chip
+
+echo "GPIO $MODULE test PASS"
diff --git a/tools/testing/selftests/hid/.gitignore b/tools/testing/selftests/hid/.gitignore
new file mode 100644
index 000000000000..933f483815b2
--- /dev/null
+++ b/tools/testing/selftests/hid/.gitignore
@@ -0,0 +1,7 @@
+bpftool
+*.skel.h
+/host-tools
+/tools
+hid_bpf
+hidraw
+results
diff --git a/tools/testing/selftests/hid/Makefile b/tools/testing/selftests/hid/Makefile
new file mode 100644
index 000000000000..2839d2612ce3
--- /dev/null
+++ b/tools/testing/selftests/hid/Makefile
@@ -0,0 +1,242 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# based on tools/testing/selftest/bpf/Makefile
+include ../../../build/Build.include
+include ../../../scripts/Makefile.arch
+include ../../../scripts/Makefile.include
+
+TEST_PROGS := hid-core.sh
+TEST_PROGS += hid-apple.sh
+TEST_PROGS += hid-gamepad.sh
+TEST_PROGS += hid-ite.sh
+TEST_PROGS += hid-keyboard.sh
+TEST_PROGS += hid-mouse.sh
+TEST_PROGS += hid-multitouch.sh
+TEST_PROGS += hid-sony.sh
+TEST_PROGS += hid-tablet.sh
+TEST_PROGS += hid-usb_crash.sh
+TEST_PROGS += hid-wacom.sh
+
+TEST_FILES := run-hid-tools-tests.sh
+TEST_FILES += tests
+
+CXX ?= $(CROSS_COMPILE)g++
+
+HOSTPKG_CONFIG := pkg-config
+
+CFLAGS += -g -O0 -rdynamic -Wall -Werror -I$(OUTPUT)
+CFLAGS += -I$(OUTPUT)/tools/include
+
+LDLIBS += -lelf -lz -lrt -lpthread
+
+# Silence some warnings when compiled with clang
+ifneq ($(LLVM),)
+CFLAGS += -Wno-unused-command-line-argument
+endif
+
+# Order correspond to 'make run_tests' order
+TEST_GEN_PROGS = hid_bpf hidraw
+
+# Emit succinct information message describing current building step
+# $1 - generic step name (e.g., CC, LINK, etc);
+# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
+# $3 - target (assumed to be file); only file name will be emitted;
+# $4 - optional extra arg, emitted as-is, if provided.
+ifeq ($(V),1)
+msg =
+else
+msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
+MAKEFLAGS += --no-print-directory
+submake_extras := feature_display=0
+endif
+
+# override lib.mk's default rules
+OVERRIDE_TARGETS := 1
+override define CLEAN
+	$(call msg,CLEAN)
+	$(Q)$(RM) -r $(TEST_GEN_PROGS)
+	$(Q)$(RM) -r $(EXTRA_CLEAN)
+endef
+
+include ../lib.mk
+
+TOOLSDIR := $(top_srcdir)/tools
+LIBDIR := $(TOOLSDIR)/lib
+BPFDIR := $(LIBDIR)/bpf
+TOOLSINCDIR := $(TOOLSDIR)/include
+BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
+SCRATCH_DIR := $(OUTPUT)/tools
+BUILD_DIR := $(SCRATCH_DIR)/build
+INCLUDE_DIR := $(SCRATCH_DIR)/include
+BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
+ifneq ($(CROSS_COMPILE),)
+HOST_BUILD_DIR		:= $(BUILD_DIR)/host
+HOST_SCRATCH_DIR	:= $(OUTPUT)/host-tools
+HOST_INCLUDE_DIR	:= $(HOST_SCRATCH_DIR)/include
+else
+HOST_BUILD_DIR		:= $(BUILD_DIR)
+HOST_SCRATCH_DIR	:= $(SCRATCH_DIR)
+HOST_INCLUDE_DIR	:= $(INCLUDE_DIR)
+endif
+HOST_BPFOBJ := $(HOST_BUILD_DIR)/libbpf/libbpf.a
+RESOLVE_BTFIDS := $(HOST_BUILD_DIR)/resolve_btfids/resolve_btfids
+
+VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)				\
+		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)	\
+		     ../../../../vmlinux				\
+		     /sys/kernel/btf/vmlinux				\
+		     /boot/vmlinux-$(shell uname -r)
+VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
+ifeq ($(VMLINUX_BTF),)
+$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
+endif
+
+# Define simple and short `make test_progs`, `make test_sysctl`, etc targets
+# to build individual tests.
+# NOTE: Semicolon at the end is critical to override lib.mk's default static
+# rule for binaries.
+$(notdir $(TEST_GEN_PROGS)): %: $(OUTPUT)/% ;
+
+# sort removes libbpf duplicates when not cross-building
+MAKE_DIRS := $(sort $(BUILD_DIR)/libbpf $(HOST_BUILD_DIR)/libbpf		\
+	       $(HOST_BUILD_DIR)/bpftool $(HOST_BUILD_DIR)/resolve_btfids	\
+	       $(INCLUDE_DIR))
+$(MAKE_DIRS):
+	$(call msg,MKDIR,,$@)
+	$(Q)mkdir -p $@
+
+# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
+ifeq ($(SRCARCH),x86)
+LLD := lld
+else
+LLD := ld
+endif
+
+DEFAULT_BPFTOOL := $(HOST_SCRATCH_DIR)/sbin/bpftool
+
+TEST_GEN_PROGS_EXTENDED += $(DEFAULT_BPFTOOL)
+
+$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(BPFOBJ)
+
+BPFTOOL ?= $(DEFAULT_BPFTOOL)
+$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
+		    $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/bpftool
+	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)			       \
+		    ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD) 	       \
+		    EXTRA_CFLAGS='-g -O0'				       \
+		    OUTPUT=$(HOST_BUILD_DIR)/bpftool/			       \
+		    LIBBPF_OUTPUT=$(HOST_BUILD_DIR)/libbpf/		       \
+		    LIBBPF_DESTDIR=$(HOST_SCRATCH_DIR)/			       \
+		    prefix= DESTDIR=$(HOST_SCRATCH_DIR)/ install-bin
+
+$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
+	   | $(BUILD_DIR)/libbpf
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
+		    EXTRA_CFLAGS='-g -O0'				       \
+		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
+
+ifneq ($(BPFOBJ),$(HOST_BPFOBJ))
+$(HOST_BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
+		| $(HOST_BUILD_DIR)/libbpf
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR)                             \
+		    EXTRA_CFLAGS='-g -O0' ARCH= CROSS_COMPILE=		       \
+		    OUTPUT=$(HOST_BUILD_DIR)/libbpf/ CC=$(HOSTCC) LD=$(HOSTLD) \
+		    DESTDIR=$(HOST_SCRATCH_DIR)/ prefix= all install_headers
+endif
+
+$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
+ifeq ($(VMLINUX_H),)
+	$(call msg,GEN,,$@)
+	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
+else
+	$(call msg,CP,,$@)
+	$(Q)cp "$(VMLINUX_H)" $@
+endif
+
+$(RESOLVE_BTFIDS): $(HOST_BPFOBJ) | $(HOST_BUILD_DIR)/resolve_btfids	\
+		       $(TOOLSDIR)/bpf/resolve_btfids/main.c	\
+		       $(TOOLSDIR)/lib/rbtree.c			\
+		       $(TOOLSDIR)/lib/zalloc.c			\
+		       $(TOOLSDIR)/lib/string.c			\
+		       $(TOOLSDIR)/lib/ctype.c			\
+		       $(TOOLSDIR)/lib/str_error_r.c
+	$(Q)$(MAKE) $(submake_extras) -C $(TOOLSDIR)/bpf/resolve_btfids	\
+		CC=$(HOSTCC) LD=$(HOSTLD) AR=$(HOSTAR) \
+		LIBBPF_INCLUDE=$(HOST_INCLUDE_DIR) \
+		OUTPUT=$(HOST_BUILD_DIR)/resolve_btfids/ BPFOBJ=$(HOST_BPFOBJ)
+
+# Get Clang's default includes on this system, as opposed to those seen by
+# '--target=bpf'. This fixes "missing" files on some architectures/distros,
+# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
+#
+# Use '-idirafter': Don't interfere with include mechanics except where the
+# build would have failed anyways.
+define get_sys_includes
+$(shell $(1) -v -E - </dev/null 2>&1 \
+	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
+$(shell $(1) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')
+endef
+
+# Determine target endianness.
+IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null | \
+			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
+MENDIAN=$(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)
+
+CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG))
+BPF_CFLAGS = -g -Werror -D__TARGET_ARCH_$(SRCARCH) $(MENDIAN) 		\
+	     -I$(INCLUDE_DIR)
+
+CLANG_CFLAGS = $(CLANG_SYS_INCLUDES) \
+	       -Wno-compare-distinct-pointer-types
+
+# Build BPF object using Clang
+# $1 - input .c file
+# $2 - output .o file
+# $3 - CFLAGS
+define CLANG_BPF_BUILD_RULE
+	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
+	$(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v3 -o $2
+endef
+# Similar to CLANG_BPF_BUILD_RULE, but with disabled alu32
+define CLANG_NOALU32_BPF_BUILD_RULE
+	$(call msg,CLNG-BPF,$(TRUNNER_BINARY),$2)
+	$(Q)$(CLANG) $3 -O2 --target=bpf -c $1 -mcpu=v2 -o $2
+endef
+# Build BPF object using GCC
+define GCC_BPF_BUILD_RULE
+	$(call msg,GCC-BPF,$(TRUNNER_BINARY),$2)
+	$(Q)$(BPF_GCC) $3 -O2 -c $1 -o $2
+endef
+
+BPF_PROGS_DIR := progs
+BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
+BPF_SRCS := $(notdir $(wildcard $(BPF_PROGS_DIR)/*.c))
+BPF_OBJS := $(patsubst %.c,$(OUTPUT)/%.bpf.o, $(BPF_SRCS))
+BPF_SKELS := $(patsubst %.c,$(OUTPUT)/%.skel.h, $(BPF_SRCS))
+TEST_GEN_FILES += $(BPF_OBJS)
+
+$(BPF_PROGS_DIR)-bpfobjs := y
+$(BPF_OBJS): $(OUTPUT)/%.bpf.o:				\
+	     $(BPF_PROGS_DIR)/%.c			\
+	     $(wildcard $(BPF_PROGS_DIR)/*.h)		\
+	     $(INCLUDE_DIR)/vmlinux.h				\
+	     $(wildcard $(BPFDIR)/hid_bpf_*.h)			\
+	     $(wildcard $(BPFDIR)/*.bpf.h)			\
+	     | $(OUTPUT) $(BPFOBJ)
+	$(call $(BPF_BUILD_RULE),$<,$@, $(BPF_CFLAGS))
+
+$(BPF_SKELS): %.skel.h: %.bpf.o $(BPFTOOL) | $(OUTPUT)
+	$(call msg,GEN-SKEL,$(BINARY),$@)
+	$(Q)$(BPFTOOL) gen object $(<:.o=.linked1.o) $<
+	$(Q)$(BPFTOOL) gen skeleton $(<:.o=.linked1.o) name $(notdir $(<:.bpf.o=)) > $@
+
+$(OUTPUT)/%.o: %.c $(BPF_SKELS) hid_common.h
+	$(call msg,CC,,$@)
+	$(Q)$(CC) $(CFLAGS) -c $(filter %.c,$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/%: $(OUTPUT)/%.o
+	$(call msg,BINARY,,$@)
+	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
+
+EXTRA_CLEAN := $(SCRATCH_DIR) $(HOST_SCRATCH_DIR) feature bpftool	\
+	$(addprefix $(OUTPUT)/,*.o *.skel.h no_alu32)
diff --git a/tools/testing/selftests/hid/config b/tools/testing/selftests/hid/config
new file mode 100644
index 000000000000..1758b055f295
--- /dev/null
+++ b/tools/testing/selftests/hid/config
@@ -0,0 +1,32 @@
+CONFIG_BPF_EVENTS=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_JIT=y
+CONFIG_BPF_KPROBE_OVERRIDE=y
+CONFIG_BPF_LSM=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_STREAM_PARSER=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BPF=y
+CONFIG_CGROUP_BPF=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
+CONFIG_FPROBE=y
+CONFIG_FTRACE_SYSCALLS=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_HIDRAW=y
+CONFIG_HID=y
+CONFIG_HID_BPF=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_UHID=y
+CONFIG_LEDS_CLASS_MULTICOLOR=y
+CONFIG_USB=y
+CONFIG_USB_HID=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_ITE=y
+CONFIG_HID_MULTITOUCH=y
+CONFIG_HID_PLAYSTATION=y
+CONFIG_PLAYSTATION_FF=y
+CONFIG_HID_SONY=y
+CONFIG_SONY_FF=y
+CONFIG_HID_WACOM=y
diff --git a/tools/testing/selftests/hid/config.common b/tools/testing/selftests/hid/config.common
new file mode 100644
index 000000000000..38c51158adf8
--- /dev/null
+++ b/tools/testing/selftests/hid/config.common
@@ -0,0 +1,241 @@
+CONFIG_9P_FS_POSIX_ACL=y
+CONFIG_9P_FS_SECURITY=y
+CONFIG_9P_FS=y
+CONFIG_AUDIT=y
+CONFIG_BINFMT_MISC=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_BONDING=y
+CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
+CONFIG_BOOTTIME_TRACING=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEBUG=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_NET_PRIO=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_WRITEBACK=y
+CONFIG_CMA_AREAS=7
+CONFIG_CMA=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPUSETS=y
+CONFIG_CRYPTO_BLAKE2B=y
+CONFIG_CRYPTO_DEV_VIRTIO=y
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_XXHASH=y
+CONFIG_DCB=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEFAULT_FQ_CODEL=y
+CONFIG_DEFAULT_RENO=y
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DEVTMPFS=y
+CONFIG_DMA_CMA=y
+CONFIG_DNS_RESOLVER=y
+CONFIG_EFI_STUB=y
+CONFIG_EFI=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_FAIL_FUNCTION=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FAULT_INJECTION=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+CONFIG_FB_VESA=y
+CONFIG_FB=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_MINI_4x6=y
+CONFIG_FONTS=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FUSE_FS=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_GART_IOMMU=y
+CONFIG_GENERIC_PHY=y
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HPET=y
+CONFIG_HUGETLBFS=y
+CONFIG_HUGETLB_PAGE=y
+CONFIG_HWPOISON_INJECT=y
+CONFIG_HZ_1000=y
+CONFIG_INET=y
+CONFIG_INTEL_POWERCLAMP=y
+CONFIG_IP6_NF_FILTER=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP6_NF_NAT=y
+CONFIG_IP6_NF_TARGET_MASQUERADE=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_NF_NAT=y
+CONFIG_IP_NF_TARGET_MASQUERADE=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IPV6_MIP6=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IRQ_POLL=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KARMA_PARTITION=y
+CONFIG_KEXEC=y
+CONFIG_KPROBES=y
+CONFIG_KSM=y
+CONFIG_LEGACY_VSYSCALL_NONE=y
+CONFIG_LOG_BUF_SHIFT=21
+CONFIG_LOG_CPU_MAX_BUF_SHIFT=0
+CONFIG_LOGO=y
+CONFIG_LSM="selinux,bpf,integrity"
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MCORE2=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_FAILURE=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_MODULES=y
+CONFIG_NAMESPACES=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NET_9P=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NETDEVICES=y
+CONFIG_NET_EMATCH=y
+CONFIG_NETFILTER_NETLINK_LOG=y
+CONFIG_NETFILTER_NETLINK_QUEUE=y
+CONFIG_NETFILTER_XTABLES=y
+CONFIG_NETFILTER_XTABLES_LEGACY=y
+CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_MATCH_COMMENT=y
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
+CONFIG_NETFILTER_XT_MATCH_MARK=y
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
+CONFIG_NETFILTER_XT_NAT=y
+CONFIG_NETFILTER_XT_TARGET_MASQUERADE=y
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NETLABEL=y
+CONFIG_NET_SCH_DEFAULT=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_FQ_CODEL=y
+CONFIG_NET_TC_SKB_EXT=y
+CONFIG_NET_VRF=y
+CONFIG_NET=y
+CONFIG_NF_CONNTRACK=y
+CONFIG_NF_NAT_MASQUERADE=y
+CONFIG_NF_NAT=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_HZ=y
+CONFIG_NR_CPUS=128
+CONFIG_NUMA_BALANCING=y
+CONFIG_NUMA=y
+CONFIG_NVMEM=y
+CONFIG_OSF_PARTITION=y
+CONFIG_OVERLAY_FS_INDEX=y
+CONFIG_OVERLAY_FS_METACOPY=y
+CONFIG_OVERLAY_FS_XINO_AUTO=y
+CONFIG_OVERLAY_FS=y
+CONFIG_PACKET=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_IOV=y
+CONFIG_PCI_MSI=y
+CONFIG_PCI=y
+CONFIG_PHYSICAL_ALIGN=0x1000000
+CONFIG_POSIX_MQUEUE=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PREEMPT=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_SCHEDSTATS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DETECT_IRQ=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RSA=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_NONSTANDARD=y
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SGI_PARTITION=y
+CONFIG_SMP=y
+CONFIG_SOCK_CGROUP_DATA=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_SUN_PARTITION=y
+CONFIG_SYNC_FILE=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TLS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TMPFS=y
+CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TUN=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_UNIX=y
+CONFIG_USER_NS=y
+CONFIG_VALIDATE_FS_PARSER=y
+CONFIG_VETH=y
+CONFIG_VIRT_DRIVERS=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_FS=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VLAN_8021Q=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_USER=y
+CONFIG_ZEROPLUS_FF=y
+CONFIG_KASAN=y
diff --git a/tools/testing/selftests/hid/config.x86_64 b/tools/testing/selftests/hid/config.x86_64
new file mode 100644
index 000000000000..a8721f403c21
--- /dev/null
+++ b/tools/testing/selftests/hid/config.x86_64
@@ -0,0 +1,4 @@
+CONFIG_X86_ACPI_CPUFREQ=y
+CONFIG_X86_CPUID=y
+CONFIG_X86_MSR=y
+CONFIG_X86_POWERNOW_K8=y
diff --git a/tools/testing/selftests/hid/hid-apple.sh b/tools/testing/selftests/hid/hid-apple.sh
new file mode 100755
index 000000000000..656f2d5ae5a9
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-apple.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_apple_keyboard.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-core.sh b/tools/testing/selftests/hid/hid-core.sh
new file mode 100755
index 000000000000..5bbabc12c34f
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-core.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_hid_core.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-gamepad.sh b/tools/testing/selftests/hid/hid-gamepad.sh
new file mode 100755
index 000000000000..1ba00c0ca95f
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-gamepad.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_gamepad.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-ite.sh b/tools/testing/selftests/hid/hid-ite.sh
new file mode 100755
index 000000000000..52c5ccf42292
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-ite.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_ite_keyboard.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-keyboard.sh b/tools/testing/selftests/hid/hid-keyboard.sh
new file mode 100755
index 000000000000..55368f17d1d5
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-keyboard.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_keyboard.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-mouse.sh b/tools/testing/selftests/hid/hid-mouse.sh
new file mode 100755
index 000000000000..7b4ad4f646f7
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-mouse.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_mouse.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-multitouch.sh b/tools/testing/selftests/hid/hid-multitouch.sh
new file mode 100755
index 000000000000..d03a1ddbfb1f
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-multitouch.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_multitouch.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-sony.sh b/tools/testing/selftests/hid/hid-sony.sh
new file mode 100755
index 000000000000..c863c442686e
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-sony.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_sony.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-tablet.sh b/tools/testing/selftests/hid/hid-tablet.sh
new file mode 100755
index 000000000000..e86b3fedafd9
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-tablet.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_tablet.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-usb_crash.sh b/tools/testing/selftests/hid/hid-usb_crash.sh
new file mode 100755
index 000000000000..3f0debe7e8fd
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-usb_crash.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_usb_crash.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid-wacom.sh b/tools/testing/selftests/hid/hid-wacom.sh
new file mode 100755
index 000000000000..1630c22726d2
--- /dev/null
+++ b/tools/testing/selftests/hid/hid-wacom.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+export TARGET=test_wacom_generic.py
+
+bash ./run-hid-tools-tests.sh
diff --git a/tools/testing/selftests/hid/hid_bpf.c b/tools/testing/selftests/hid/hid_bpf.c
new file mode 100644
index 000000000000..1e979fb3542b
--- /dev/null
+++ b/tools/testing/selftests/hid/hid_bpf.c
@@ -0,0 +1,911 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022-2024 Red Hat */
+#include "hid.skel.h"
+#include "hid_common.h"
+#include <bpf/bpf.h>
+
+struct hid_hw_request_syscall_args {
+	__u8 data[10];
+	unsigned int hid;
+	int retval;
+	size_t size;
+	enum hid_report_type type;
+	__u8 request_type;
+};
+
+FIXTURE(hid_bpf) {
+	struct uhid_device hid;
+	int hidraw_fd;
+	struct hid *skel;
+	struct bpf_link *hid_links[3]; /* max number of programs loaded in a single test */
+};
+static void detach_bpf(FIXTURE_DATA(hid_bpf) * self)
+{
+	int i;
+
+	if (self->hidraw_fd)
+		close(self->hidraw_fd);
+	self->hidraw_fd = 0;
+
+	if (!self->skel)
+		return;
+
+	hid__detach(self->skel);
+
+	for (i = 0; i < ARRAY_SIZE(self->hid_links); i++) {
+		if (self->hid_links[i])
+			bpf_link__destroy(self->hid_links[i]);
+	}
+
+	hid__destroy(self->skel);
+	self->skel = NULL;
+}
+
+FIXTURE_TEARDOWN(hid_bpf) {
+	void *uhid_err;
+
+	uhid_destroy(_metadata, &self->hid);
+
+	detach_bpf(self);
+	pthread_join(self->hid.tid, &uhid_err);
+}
+#define TEARDOWN_LOG(fmt, ...) do { \
+	TH_LOG(fmt, ##__VA_ARGS__); \
+	hid_bpf_teardown(_metadata, self, variant); \
+} while (0)
+
+FIXTURE_SETUP(hid_bpf)
+{
+	int err;
+
+	err = setup_uhid(_metadata, &self->hid, BUS_USB, 0x0001, 0x0a36, rdesc, sizeof(rdesc));
+	ASSERT_OK(err);
+}
+
+struct test_program {
+	const char *name;
+	int insert_head;
+};
+#define LOAD_PROGRAMS(progs) \
+	load_programs(progs, ARRAY_SIZE(progs), _metadata, self, variant)
+#define LOAD_BPF \
+	load_programs(NULL, 0, _metadata, self, variant)
+static void load_programs(const struct test_program programs[],
+			  const size_t progs_count,
+			  struct __test_metadata *_metadata,
+			  FIXTURE_DATA(hid_bpf) * self,
+			  const FIXTURE_VARIANT(hid_bpf) * variant)
+{
+	struct bpf_map *iter_map;
+	int err = -EINVAL;
+
+	ASSERT_LE(progs_count, ARRAY_SIZE(self->hid_links))
+		TH_LOG("too many programs are to be loaded");
+
+	/* open the bpf file */
+	self->skel = hid__open();
+	ASSERT_OK_PTR(self->skel) TEARDOWN_LOG("Error while calling hid__open");
+
+	for (int i = 0; i < progs_count; i++) {
+		struct bpf_program *prog;
+		struct bpf_map *map;
+		int *ops_hid_id;
+
+		prog = bpf_object__find_program_by_name(*self->skel->skeleton->obj,
+							programs[i].name);
+		ASSERT_OK_PTR(prog) TH_LOG("can not find program by name '%s'", programs[i].name);
+
+		bpf_program__set_autoload(prog, true);
+
+		map = bpf_object__find_map_by_name(*self->skel->skeleton->obj,
+							  programs[i].name + 4);
+		ASSERT_OK_PTR(map) TH_LOG("can not find struct_ops by name '%s'",
+					  programs[i].name + 4);
+
+		/* hid_id is the first field of struct hid_bpf_ops */
+		ops_hid_id = bpf_map__initial_value(map, NULL);
+		ASSERT_OK_PTR(ops_hid_id) TH_LOG("unable to retrieve struct_ops data");
+
+		*ops_hid_id = self->hid.hid_id;
+	}
+
+	/* we disable the auto-attach feature of all maps because we
+	 * only want the tested one to be manually attached in the next
+	 * call to bpf_map__attach_struct_ops()
+	 */
+	bpf_object__for_each_map(iter_map, *self->skel->skeleton->obj)
+		bpf_map__set_autoattach(iter_map, false);
+
+	err = hid__load(self->skel);
+	ASSERT_OK(err) TH_LOG("hid_skel_load failed: %d", err);
+
+	for (int i = 0; i < progs_count; i++) {
+		struct bpf_map *map;
+
+		map = bpf_object__find_map_by_name(*self->skel->skeleton->obj,
+							  programs[i].name + 4);
+		ASSERT_OK_PTR(map) TH_LOG("can not find struct_ops by name '%s'",
+					  programs[i].name + 4);
+
+		self->hid_links[i] = bpf_map__attach_struct_ops(map);
+		ASSERT_OK_PTR(self->hid_links[i]) TH_LOG("failed to attach struct ops '%s'",
+							 programs[i].name + 4);
+	}
+
+	hid__attach(self->skel);
+
+	self->hidraw_fd = open_hidraw(&self->hid);
+	ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
+}
+
+/*
+ * A simple test to see if the fixture is working fine.
+ * If this fails, none of the other tests will pass.
+ */
+TEST_F(hid_bpf, test_create_uhid)
+{
+}
+
+/*
+ * Attach hid_first_event to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the program sees it and can change the data
+ */
+TEST_F(hid_bpf, raw_event)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_first_event" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* check that the program is correctly loaded */
+	ASSERT_EQ(self->skel->data->callback_check, 52) TH_LOG("callback_check1");
+	ASSERT_EQ(self->skel->data->callback2_check, 52) TH_LOG("callback2_check1");
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* check that hid_first_event() was executed */
+	ASSERT_EQ(self->skel->data->callback_check, 42) TH_LOG("callback_check1");
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[2], 47);
+
+	/* inject another event */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 1;
+	buf[1] = 47;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* check that hid_first_event() was executed */
+	ASSERT_EQ(self->skel->data->callback_check, 47) TH_LOG("callback_check1");
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[2], 52);
+}
+
+/*
+ * Attach hid_first_event to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the program sees it and can change the data
+ */
+TEST_F(hid_bpf, subprog_raw_event)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_subprog_first_event" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[2], 47);
+
+	/* inject another event */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 1;
+	buf[1] = 47;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[2], 52);
+}
+
+/*
+ * Attach hid_first_event to the given uhid device,
+ * attempt at re-attaching it, we should not lock and
+ * return an invalid struct bpf_link
+ */
+TEST_F(hid_bpf, multiple_attach)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_first_event" },
+	};
+	struct bpf_link *link;
+
+	LOAD_PROGRAMS(progs);
+
+	link = bpf_map__attach_struct_ops(self->skel->maps.first_event);
+	ASSERT_NULL(link) TH_LOG("unexpected return value when re-attaching the struct_ops");
+}
+
+/*
+ * Ensures that we can attach/detach programs
+ */
+TEST_F(hid_bpf, test_attach_detach)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_first_event" },
+		{ .name = "hid_second_event" },
+	};
+	struct bpf_link *link;
+	__u8 buf[10] = {0};
+	int err, link_fd;
+
+	LOAD_PROGRAMS(progs);
+
+	link = self->hid_links[0];
+	ASSERT_OK_PTR(link) TH_LOG("HID-BPF link not created");
+
+	link_fd = bpf_link__fd(link);
+	ASSERT_GE(link_fd, 0) TH_LOG("HID-BPF link FD not valid");
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[2], 47);
+
+	/* make sure both programs are run */
+	ASSERT_EQ(buf[3], 52);
+
+	/* pin the first program and immediately unpin it */
+#define PIN_PATH "/sys/fs/bpf/hid_first_event"
+	err = bpf_obj_pin(link_fd, PIN_PATH);
+	ASSERT_OK(err) TH_LOG("error while calling bpf_obj_pin");
+	remove(PIN_PATH);
+#undef PIN_PATH
+	usleep(100000);
+
+	/* detach the program */
+	detach_bpf(self);
+
+	self->hidraw_fd = open_hidraw(&self->hid);
+	ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
+
+	/* inject another event */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 1;
+	buf[1] = 47;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw_no_bpf");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 47);
+	ASSERT_EQ(buf[2], 0);
+	ASSERT_EQ(buf[3], 0);
+
+	/* re-attach our program */
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[2], 47);
+	ASSERT_EQ(buf[3], 52);
+}
+
+/*
+ * Attach hid_change_report_id to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the program sees it and can change the data
+ */
+TEST_F(hid_bpf, test_hid_change_report)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_change_report_id" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 9) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 2);
+	ASSERT_EQ(buf[1], 42);
+	ASSERT_EQ(buf[2], 0) TH_LOG("leftovers_from_previous_test");
+}
+
+/*
+ * Call hid_bpf_input_report against the given uhid device,
+ * check that the program is called and does the expected.
+ */
+TEST_F(hid_bpf, test_hid_user_input_report_call)
+{
+	struct hid_hw_request_syscall_args args = {
+		.retval = -1,
+		.size = 10,
+	};
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, tattrs,
+			    .ctx_in = &args,
+			    .ctx_size_in = sizeof(args),
+	);
+	__u8 buf[10] = {0};
+	int err, prog_fd;
+
+	LOAD_BPF;
+
+	args.hid = self->hid.hid_id;
+	args.data[0] = 1; /* report ID */
+	args.data[1] = 2; /* report ID */
+	args.data[2] = 42; /* report ID */
+
+	prog_fd = bpf_program__fd(self->skel->progs.hid_user_input_report);
+
+	/* check that there is no data to read from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, -1) TH_LOG("read_hidraw");
+
+	err = bpf_prog_test_run_opts(prog_fd, &tattrs);
+
+	ASSERT_OK(err) TH_LOG("error while calling bpf_prog_test_run_opts");
+
+	ASSERT_EQ(args.retval, 0);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 2);
+	ASSERT_EQ(buf[2], 42);
+}
+
+/*
+ * Call hid_bpf_hw_output_report against the given uhid device,
+ * check that the program is called and does the expected.
+ */
+TEST_F(hid_bpf, test_hid_user_output_report_call)
+{
+	struct hid_hw_request_syscall_args args = {
+		.retval = -1,
+		.size = 10,
+	};
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, tattrs,
+			    .ctx_in = &args,
+			    .ctx_size_in = sizeof(args),
+	);
+	int err, cond_err, prog_fd;
+	struct timespec time_to_wait;
+
+	LOAD_BPF;
+
+	args.hid = self->hid.hid_id;
+	args.data[0] = 1; /* report ID */
+	args.data[1] = 2; /* report ID */
+	args.data[2] = 42; /* report ID */
+
+	prog_fd = bpf_program__fd(self->skel->progs.hid_user_output_report);
+
+	pthread_mutex_lock(&uhid_output_mtx);
+
+	memset(output_report, 0, sizeof(output_report));
+	clock_gettime(CLOCK_REALTIME, &time_to_wait);
+	time_to_wait.tv_sec += 2;
+
+	err = bpf_prog_test_run_opts(prog_fd, &tattrs);
+	cond_err = pthread_cond_timedwait(&uhid_output_cond, &uhid_output_mtx, &time_to_wait);
+
+	ASSERT_OK(err) TH_LOG("error while calling bpf_prog_test_run_opts");
+	ASSERT_OK(cond_err) TH_LOG("error while calling waiting for the condition");
+
+	ASSERT_EQ(args.retval, 3);
+
+	ASSERT_EQ(output_report[0], 1);
+	ASSERT_EQ(output_report[1], 2);
+	ASSERT_EQ(output_report[2], 42);
+
+	pthread_mutex_unlock(&uhid_output_mtx);
+}
+
+/*
+ * Call hid_hw_raw_request against the given uhid device,
+ * check that the program is called and does the expected.
+ */
+TEST_F(hid_bpf, test_hid_user_raw_request_call)
+{
+	struct hid_hw_request_syscall_args args = {
+		.retval = -1,
+		.type = HID_FEATURE_REPORT,
+		.request_type = HID_REQ_GET_REPORT,
+		.size = 10,
+	};
+	DECLARE_LIBBPF_OPTS(bpf_test_run_opts, tattrs,
+			    .ctx_in = &args,
+			    .ctx_size_in = sizeof(args),
+	);
+	int err, prog_fd;
+
+	LOAD_BPF;
+
+	args.hid = self->hid.hid_id;
+	args.data[0] = 1; /* report ID */
+
+	prog_fd = bpf_program__fd(self->skel->progs.hid_user_raw_request);
+
+	err = bpf_prog_test_run_opts(prog_fd, &tattrs);
+	ASSERT_OK(err) TH_LOG("error while calling bpf_prog_test_run_opts");
+
+	ASSERT_EQ(args.retval, 2);
+
+	ASSERT_EQ(args.data[1], 2);
+}
+
+/*
+ * Call hid_hw_raw_request against the given uhid device,
+ * check that the program is called and prevents the
+ * call to uhid.
+ */
+TEST_F(hid_bpf, test_hid_filter_raw_request_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_filter_raw_request" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* first check that we did not attach to device_event */
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 42);
+	ASSERT_EQ(buf[2], 0) TH_LOG("leftovers_from_previous_test");
+
+	/* now check that our program is preventing hid_hw_raw_request() */
+
+	/* emit hid_hw_raw_request from hidraw */
+	/* Get Feature */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 0x1; /* Report Number */
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_LT(err, 0) TH_LOG("unexpected success while reading HIDIOCGFEATURE: %d", err);
+	ASSERT_EQ(errno, 20) TH_LOG("unexpected error code while reading HIDIOCGFEATURE: %d",
+				    errno);
+
+	/* remove our bpf program and check that we can now emit commands */
+
+	/* detach the program */
+	detach_bpf(self);
+
+	self->hidraw_fd = open_hidraw(&self->hid);
+	ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
+
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_GE(err, 0) TH_LOG("error while reading HIDIOCGFEATURE: %d", err);
+}
+
+/*
+ * Call hid_hw_raw_request against the given uhid device,
+ * check that the program is called and can issue the call
+ * to uhid and transform the answer.
+ */
+TEST_F(hid_bpf, test_hid_change_raw_request_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_hidraw_raw_request" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* emit hid_hw_raw_request from hidraw */
+	/* Get Feature */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 0x1; /* Report Number */
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_EQ(err, 3) TH_LOG("unexpected returned size while reading HIDIOCGFEATURE: %d", err);
+
+	ASSERT_EQ(buf[0], 2);
+	ASSERT_EQ(buf[1], 3);
+	ASSERT_EQ(buf[2], 4);
+}
+
+/*
+ * Call hid_hw_raw_request against the given uhid device,
+ * check that the program is not making infinite loops.
+ */
+TEST_F(hid_bpf, test_hid_infinite_loop_raw_request_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_infinite_loop_raw_request" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* emit hid_hw_raw_request from hidraw */
+	/* Get Feature */
+	memset(buf, 0, sizeof(buf));
+	buf[0] = 0x1; /* Report Number */
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_EQ(err, 3) TH_LOG("unexpected returned size while reading HIDIOCGFEATURE: %d", err);
+}
+
+/*
+ * Call hid_hw_output_report against the given uhid device,
+ * check that the program is called and prevents the
+ * call to uhid.
+ */
+TEST_F(hid_bpf, test_hid_filter_output_report_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_filter_output_report" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* first check that we did not attach to device_event */
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 42);
+	ASSERT_EQ(buf[2], 0) TH_LOG("leftovers_from_previous_test");
+
+	/* now check that our program is preventing hid_hw_output_report() */
+
+	buf[0] = 1; /* report ID */
+	buf[1] = 2;
+	buf[2] = 42;
+
+	err = write(self->hidraw_fd, buf, 3);
+	ASSERT_LT(err, 0) TH_LOG("unexpected success while sending hid_hw_output_report: %d", err);
+	ASSERT_EQ(errno, 25) TH_LOG("unexpected error code while sending hid_hw_output_report: %d",
+				    errno);
+
+	/* remove our bpf program and check that we can now emit commands */
+
+	/* detach the program */
+	detach_bpf(self);
+
+	self->hidraw_fd = open_hidraw(&self->hid);
+	ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
+
+	err = write(self->hidraw_fd, buf, 3);
+	ASSERT_GE(err, 0) TH_LOG("error while sending hid_hw_output_report: %d", err);
+}
+
+/*
+ * Call hid_hw_output_report against the given uhid device,
+ * check that the program is called and can issue the call
+ * to uhid and transform the answer.
+ */
+TEST_F(hid_bpf, test_hid_change_output_report_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_hidraw_output_report" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* emit hid_hw_output_report from hidraw */
+	buf[0] = 1; /* report ID */
+	buf[1] = 2;
+	buf[2] = 42;
+
+	err = write(self->hidraw_fd, buf, 10);
+	ASSERT_EQ(err, 2) TH_LOG("unexpected returned size while sending hid_hw_output_report: %d",
+				 err);
+}
+
+/*
+ * Call hid_hw_output_report against the given uhid device,
+ * check that the program is not making infinite loops.
+ */
+TEST_F(hid_bpf, test_hid_infinite_loop_output_report_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_infinite_loop_output_report" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* emit hid_hw_output_report from hidraw */
+	buf[0] = 1; /* report ID */
+	buf[1] = 2;
+	buf[2] = 42;
+
+	err = write(self->hidraw_fd, buf, 8);
+	ASSERT_EQ(err, 2) TH_LOG("unexpected returned size while sending hid_hw_output_report: %d",
+				 err);
+}
+
+/*
+ * Attach hid_multiply_event_wq to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the program sees it and can add extra data
+ */
+TEST_F(hid_bpf, test_multiply_events_wq)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_multiply_events_wq" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 47);
+
+	usleep(100000);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 9) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 2);
+	ASSERT_EQ(buf[1], 3);
+}
+
+/*
+ * Attach hid_multiply_event to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the program sees it and can add extra data
+ */
+TEST_F(hid_bpf, test_multiply_events)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_multiply_events" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 9) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 2);
+	ASSERT_EQ(buf[1], 47);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 9) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 2);
+	ASSERT_EQ(buf[1], 52);
+}
+
+/*
+ * Call hid_bpf_input_report against the given uhid device,
+ * check that the program is not making infinite loops.
+ */
+TEST_F(hid_bpf, test_hid_infinite_loop_input_report_call)
+{
+	const struct test_program progs[] = {
+		{ .name = "hid_test_infinite_loop_input_report" },
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* emit hid_hw_output_report from hidraw */
+	buf[0] = 1; /* report ID */
+	buf[1] = 2;
+	buf[2] = 42;
+
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 3);
+
+	/* read the data from hidraw: hid_bpf_try_input_report should work exactly one time */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 4);
+
+	/* read the data from hidraw: there should be none */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, -1) TH_LOG("read_hidraw");
+}
+
+/*
+ * Attach hid_insert{0,1,2} to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * inject one event in the uhid device,
+ * check that the programs have been inserted in the correct order.
+ */
+TEST_F(hid_bpf, test_hid_attach_flags)
+{
+	const struct test_program progs[] = {
+		{
+			.name = "hid_test_insert2",
+			.insert_head = 0,
+		},
+		{
+			.name = "hid_test_insert1",
+			.insert_head = 1,
+		},
+		{
+			.name = "hid_test_insert3",
+			.insert_head = 0,
+		},
+	};
+	__u8 buf[10] = {0};
+	int err;
+
+	LOAD_PROGRAMS(progs);
+
+	/* inject one event */
+	buf[0] = 1;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[1], 1);
+	ASSERT_EQ(buf[2], 2);
+	ASSERT_EQ(buf[3], 3);
+}
+
+/*
+ * Attach hid_rdesc_fixup to the given uhid device,
+ * retrieve and open the matching hidraw node,
+ * check that the hidraw report descriptor has been updated.
+ */
+TEST_F(hid_bpf, test_rdesc_fixup)
+{
+	struct hidraw_report_descriptor rpt_desc = {0};
+	const struct test_program progs[] = {
+		{ .name = "hid_rdesc_fixup" },
+	};
+	int err, desc_size;
+
+	LOAD_PROGRAMS(progs);
+
+	/* check that hid_rdesc_fixup() was executed */
+	ASSERT_EQ(self->skel->data->callback2_check, 0x21);
+
+	/* read the exposed report descriptor from hidraw */
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESCSIZE, &desc_size);
+	ASSERT_GE(err, 0) TH_LOG("error while reading HIDIOCGRDESCSIZE: %d", err);
+
+	/* ensure the new size of the rdesc is bigger than the old one */
+	ASSERT_GT(desc_size, sizeof(rdesc));
+
+	rpt_desc.size = desc_size;
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESC, &rpt_desc);
+	ASSERT_GE(err, 0) TH_LOG("error while reading HIDIOCGRDESC: %d", err);
+
+	ASSERT_EQ(rpt_desc.value[4], 0x42);
+}
+
+static int libbpf_print_fn(enum libbpf_print_level level,
+			   const char *format, va_list args)
+{
+	char buf[1024];
+
+	if (level == LIBBPF_DEBUG)
+		return 0;
+
+	snprintf(buf, sizeof(buf), "# %s", format);
+
+	vfprintf(stdout, buf, args);
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	/* Use libbpf 1.0 API mode */
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+	libbpf_set_print(libbpf_print_fn);
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/hid/hid_common.h b/tools/testing/selftests/hid/hid_common.h
new file mode 100644
index 000000000000..e3b267446fa0
--- /dev/null
+++ b/tools/testing/selftests/hid/hid_common.h
@@ -0,0 +1,480 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2022-2024 Red Hat */
+
+#include "kselftest_harness.h"
+
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <dirent.h>
+#include <poll.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <linux/hidraw.h>
+#include <linux/uhid.h>
+
+#define SHOW_UHID_DEBUG 0
+
+#define min(a, b) \
+	({ __typeof__(a) _a = (a); \
+	__typeof__(b) _b = (b); \
+	_a < _b ? _a : _b; })
+
+struct uhid_device {
+	int dev_id;		/* uniq (random) number to identify the device */
+	int uhid_fd;
+	int hid_id;		/* HID device id in the system */
+	__u16 bus;
+	__u32 vid;
+	__u32 pid;
+	pthread_t tid;		/* thread for reading uhid events */
+};
+
+static unsigned char rdesc[] = {
+	0x06, 0x00, 0xff,	/* Usage Page (Vendor Defined Page 1) */
+	0x09, 0x21,		/* Usage (Vendor Usage 0x21) */
+	0xa1, 0x01,		/* COLLECTION (Application) */
+	0x09, 0x01,			/* Usage (Vendor Usage 0x01) */
+	0xa1, 0x00,			/* COLLECTION (Physical) */
+	0x85, 0x02,				/* REPORT_ID (2) */
+	0x19, 0x01,				/* USAGE_MINIMUM (1) */
+	0x29, 0x08,				/* USAGE_MAXIMUM (3) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0xff,				/* LOGICAL_MAXIMUM (255) */
+	0x95, 0x08,				/* REPORT_COUNT (8) */
+	0x75, 0x08,				/* REPORT_SIZE (8) */
+	0x81, 0x02,				/* INPUT (Data,Var,Abs) */
+	0xc0,				/* END_COLLECTION */
+	0x09, 0x01,			/* Usage (Vendor Usage 0x01) */
+	0xa1, 0x00,			/* COLLECTION (Physical) */
+	0x85, 0x01,				/* REPORT_ID (1) */
+	0x06, 0x00, 0xff,			/* Usage Page (Vendor Defined Page 1) */
+	0x19, 0x01,				/* USAGE_MINIMUM (1) */
+	0x29, 0x03,				/* USAGE_MAXIMUM (3) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0x01,				/* LOGICAL_MAXIMUM (1) */
+	0x95, 0x03,				/* REPORT_COUNT (3) */
+	0x75, 0x01,				/* REPORT_SIZE (1) */
+	0x81, 0x02,				/* INPUT (Data,Var,Abs) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x75, 0x05,				/* REPORT_SIZE (5) */
+	0x81, 0x01,				/* INPUT (Cnst,Var,Abs) */
+	0x05, 0x01,				/* USAGE_PAGE (Generic Desktop) */
+	0x09, 0x30,				/* USAGE (X) */
+	0x09, 0x31,				/* USAGE (Y) */
+	0x15, 0x81,				/* LOGICAL_MINIMUM (-127) */
+	0x25, 0x7f,				/* LOGICAL_MAXIMUM (127) */
+	0x75, 0x10,				/* REPORT_SIZE (16) */
+	0x95, 0x02,				/* REPORT_COUNT (2) */
+	0x81, 0x06,				/* INPUT (Data,Var,Rel) */
+
+	0x06, 0x00, 0xff,			/* Usage Page (Vendor Defined Page 1) */
+	0x19, 0x01,				/* USAGE_MINIMUM (1) */
+	0x29, 0x03,				/* USAGE_MAXIMUM (3) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0x01,				/* LOGICAL_MAXIMUM (1) */
+	0x95, 0x03,				/* REPORT_COUNT (3) */
+	0x75, 0x01,				/* REPORT_SIZE (1) */
+	0x91, 0x02,				/* Output (Data,Var,Abs) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x75, 0x05,				/* REPORT_SIZE (5) */
+	0x91, 0x01,				/* Output (Cnst,Var,Abs) */
+
+	0x06, 0x00, 0xff,			/* Usage Page (Vendor Defined Page 1) */
+	0x19, 0x06,				/* USAGE_MINIMUM (6) */
+	0x29, 0x08,				/* USAGE_MAXIMUM (8) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0x01,				/* LOGICAL_MAXIMUM (1) */
+	0x95, 0x03,				/* REPORT_COUNT (3) */
+	0x75, 0x01,				/* REPORT_SIZE (1) */
+	0xb1, 0x02,				/* Feature (Data,Var,Abs) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x75, 0x05,				/* REPORT_SIZE (5) */
+	0x91, 0x01,				/* Output (Cnst,Var,Abs) */
+
+	0xc0,				/* END_COLLECTION */
+	0xc0,			/* END_COLLECTION */
+};
+
+static __u8 feature_data[] = { 1, 2 };
+
+#define ASSERT_OK(data) ASSERT_FALSE(data)
+#define ASSERT_OK_PTR(ptr) ASSERT_NE(NULL, ptr)
+
+#define UHID_LOG(fmt, ...) do { \
+	if (SHOW_UHID_DEBUG) \
+		TH_LOG(fmt, ##__VA_ARGS__); \
+} while (0)
+
+static pthread_mutex_t uhid_started_mtx = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t uhid_started = PTHREAD_COND_INITIALIZER;
+
+static pthread_mutex_t uhid_output_mtx = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t uhid_output_cond = PTHREAD_COND_INITIALIZER;
+static unsigned char output_report[10];
+
+/* no need to protect uhid_stopped, only one thread accesses it */
+static bool uhid_stopped;
+
+static int uhid_write(struct __test_metadata *_metadata, int fd, const struct uhid_event *ev)
+{
+	ssize_t ret;
+
+	ret = write(fd, ev, sizeof(*ev));
+	if (ret < 0) {
+		TH_LOG("Cannot write to uhid: %m");
+		return -errno;
+	} else if (ret != sizeof(*ev)) {
+		TH_LOG("Wrong size written to uhid: %zd != %zu",
+			ret, sizeof(ev));
+		return -EFAULT;
+	} else {
+		return 0;
+	}
+}
+
+static int uhid_create(struct __test_metadata *_metadata, int fd, int rand_nb,
+		       __u16 bus, __u32 vid, __u32 pid, __u8 *rdesc,
+		       size_t rdesc_size)
+{
+	struct uhid_event ev;
+	char buf[25];
+
+	sprintf(buf, "test-uhid-device-%d", rand_nb);
+
+	memset(&ev, 0, sizeof(ev));
+	ev.type = UHID_CREATE;
+	strcpy((char *)ev.u.create.name, buf);
+	ev.u.create.rd_data = rdesc;
+	ev.u.create.rd_size = rdesc_size;
+	ev.u.create.bus = bus;
+	ev.u.create.vendor = vid;
+	ev.u.create.product = pid;
+	ev.u.create.version = 0;
+	ev.u.create.country = 0;
+
+	sprintf(buf, "%d", rand_nb);
+	strcpy((char *)ev.u.create.phys, buf);
+
+	return uhid_write(_metadata, fd, &ev);
+}
+
+static void uhid_destroy(struct __test_metadata *_metadata, struct uhid_device *hid)
+{
+	struct uhid_event ev;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.type = UHID_DESTROY;
+
+	uhid_write(_metadata, hid->uhid_fd, &ev);
+}
+
+static int uhid_event(struct __test_metadata *_metadata, int fd)
+{
+	struct uhid_event ev, answer;
+	ssize_t ret;
+
+	memset(&ev, 0, sizeof(ev));
+	ret = read(fd, &ev, sizeof(ev));
+	if (ret == 0) {
+		UHID_LOG("Read HUP on uhid-cdev");
+		return -EFAULT;
+	} else if (ret < 0) {
+		UHID_LOG("Cannot read uhid-cdev: %m");
+		return -errno;
+	} else if (ret != sizeof(ev)) {
+		UHID_LOG("Invalid size read from uhid-dev: %zd != %zu",
+			ret, sizeof(ev));
+		return -EFAULT;
+	}
+
+	switch (ev.type) {
+	case UHID_START:
+		pthread_mutex_lock(&uhid_started_mtx);
+		pthread_cond_signal(&uhid_started);
+		pthread_mutex_unlock(&uhid_started_mtx);
+
+		UHID_LOG("UHID_START from uhid-dev");
+		break;
+	case UHID_STOP:
+		uhid_stopped = true;
+
+		UHID_LOG("UHID_STOP from uhid-dev");
+		break;
+	case UHID_OPEN:
+		UHID_LOG("UHID_OPEN from uhid-dev");
+		break;
+	case UHID_CLOSE:
+		UHID_LOG("UHID_CLOSE from uhid-dev");
+		break;
+	case UHID_OUTPUT:
+		UHID_LOG("UHID_OUTPUT from uhid-dev");
+
+		pthread_mutex_lock(&uhid_output_mtx);
+		memcpy(output_report,
+		       ev.u.output.data,
+		       min(ev.u.output.size, sizeof(output_report)));
+		pthread_cond_signal(&uhid_output_cond);
+		pthread_mutex_unlock(&uhid_output_mtx);
+		break;
+	case UHID_GET_REPORT:
+		UHID_LOG("UHID_GET_REPORT from uhid-dev");
+
+		answer.type = UHID_GET_REPORT_REPLY;
+		answer.u.get_report_reply.id = ev.u.get_report.id;
+		answer.u.get_report_reply.err = ev.u.get_report.rnum == 1 ? 0 : -EIO;
+		answer.u.get_report_reply.size = sizeof(feature_data);
+		memcpy(answer.u.get_report_reply.data, feature_data, sizeof(feature_data));
+
+		uhid_write(_metadata, fd, &answer);
+
+		break;
+	case UHID_SET_REPORT:
+		UHID_LOG("UHID_SET_REPORT from uhid-dev");
+
+		answer.type = UHID_SET_REPORT_REPLY;
+		answer.u.set_report_reply.id = ev.u.set_report.id;
+		answer.u.set_report_reply.err = 0; /* success */
+
+		uhid_write(_metadata, fd, &answer);
+		break;
+	default:
+		TH_LOG("Invalid event from uhid-dev: %u", ev.type);
+	}
+
+	return 0;
+}
+
+struct uhid_thread_args {
+	int fd;
+	struct __test_metadata *_metadata;
+};
+static void *uhid_read_events_thread(void *arg)
+{
+	struct uhid_thread_args *args = (struct uhid_thread_args *)arg;
+	struct __test_metadata *_metadata = args->_metadata;
+	struct pollfd pfds[1];
+	int fd = args->fd;
+	int ret = 0;
+
+	pfds[0].fd = fd;
+	pfds[0].events = POLLIN;
+
+	uhid_stopped = false;
+
+	while (!uhid_stopped) {
+		ret = poll(pfds, 1, 100);
+		if (ret < 0) {
+			TH_LOG("Cannot poll for fds: %m");
+			break;
+		}
+		if (pfds[0].revents & POLLIN) {
+			ret = uhid_event(_metadata, fd);
+			if (ret)
+				break;
+		}
+	}
+
+	return (void *)(long)ret;
+}
+
+static int uhid_start_listener(struct __test_metadata *_metadata, pthread_t *tid, int uhid_fd)
+{
+	struct uhid_thread_args args = {
+		.fd = uhid_fd,
+		._metadata = _metadata,
+	};
+	int err;
+
+	pthread_mutex_lock(&uhid_started_mtx);
+	err = pthread_create(tid, NULL, uhid_read_events_thread, (void *)&args);
+	ASSERT_EQ(0, err) {
+		TH_LOG("Could not start the uhid thread: %d", err);
+		pthread_mutex_unlock(&uhid_started_mtx);
+		close(uhid_fd);
+		return -EIO;
+	}
+	pthread_cond_wait(&uhid_started, &uhid_started_mtx);
+	pthread_mutex_unlock(&uhid_started_mtx);
+
+	return 0;
+}
+
+static int uhid_send_event(struct __test_metadata *_metadata, struct uhid_device *hid,
+			   __u8 *buf, size_t size)
+{
+	struct uhid_event ev;
+
+	if (size > sizeof(ev.u.input.data))
+		return -E2BIG;
+
+	memset(&ev, 0, sizeof(ev));
+	ev.type = UHID_INPUT2;
+	ev.u.input2.size = size;
+
+	memcpy(ev.u.input2.data, buf, size);
+
+	return uhid_write(_metadata, hid->uhid_fd, &ev);
+}
+
+static bool match_sysfs_device(struct uhid_device *hid, const char *workdir, struct dirent *dir)
+{
+	char target[20] = "";
+	char phys[512];
+	char uevent[1024];
+	char temp[512];
+	int fd, nread;
+	bool found = false;
+
+	snprintf(target, sizeof(target), "%04X:%04X:%04X.*", hid->bus, hid->vid, hid->pid);
+
+	if (fnmatch(target, dir->d_name, 0))
+		return false;
+
+	/* we found the correct VID/PID, now check for phys */
+	sprintf(uevent, "%s/%s/uevent", workdir, dir->d_name);
+
+	fd = open(uevent, O_RDONLY | O_NONBLOCK);
+	if (fd < 0)
+		return false;
+
+	sprintf(phys, "PHYS=%d", hid->dev_id);
+
+	nread = read(fd, temp, ARRAY_SIZE(temp));
+	if (nread > 0 && (strstr(temp, phys)) != NULL)
+		found = true;
+
+	close(fd);
+
+	return found;
+}
+
+static int get_hid_id(struct uhid_device *hid)
+{
+	const char *workdir = "/sys/devices/virtual/misc/uhid";
+	const char *str_id;
+	DIR *d;
+	struct dirent *dir;
+	int found = -1, attempts = 3;
+
+	/* it would be nice to be able to use nftw, but the no_alu32 target doesn't support it */
+
+	while (found < 0 && attempts > 0) {
+		attempts--;
+		d = opendir(workdir);
+		if (d) {
+			while ((dir = readdir(d)) != NULL) {
+				if (!match_sysfs_device(hid, workdir, dir))
+					continue;
+
+				str_id = dir->d_name + sizeof("0000:0000:0000.");
+				found = (int)strtol(str_id, NULL, 16);
+
+				break;
+			}
+			closedir(d);
+		}
+		if (found < 0)
+			usleep(100000);
+	}
+
+	return found;
+}
+
+static int get_hidraw(struct uhid_device *hid)
+{
+	const char *workdir = "/sys/devices/virtual/misc/uhid";
+	char sysfs[1024];
+	DIR *d, *subd;
+	struct dirent *dir, *subdir;
+	int i, found = -1;
+
+	/* retry 5 times in case the system is loaded */
+	for (i = 5; i > 0; i--) {
+		usleep(10);
+		d = opendir(workdir);
+
+		if (!d)
+			continue;
+
+		while ((dir = readdir(d)) != NULL) {
+			if (!match_sysfs_device(hid, workdir, dir))
+				continue;
+
+			sprintf(sysfs, "%s/%s/hidraw", workdir, dir->d_name);
+
+			subd = opendir(sysfs);
+			if (!subd)
+				continue;
+
+			while ((subdir = readdir(subd)) != NULL) {
+				if (fnmatch("hidraw*", subdir->d_name, 0))
+					continue;
+
+				found = atoi(subdir->d_name + strlen("hidraw"));
+			}
+
+			closedir(subd);
+
+			if (found > 0)
+				break;
+		}
+		closedir(d);
+	}
+
+	return found;
+}
+
+static int open_hidraw(struct uhid_device *hid)
+{
+	int hidraw_number;
+	char hidraw_path[64] = { 0 };
+
+	hidraw_number = get_hidraw(hid);
+	if (hidraw_number < 0)
+		return hidraw_number;
+
+	/* open hidraw node to check the other side of the pipe */
+	sprintf(hidraw_path, "/dev/hidraw%d", hidraw_number);
+	return open(hidraw_path, O_RDWR | O_NONBLOCK);
+}
+
+static int setup_uhid(struct __test_metadata *_metadata, struct uhid_device *hid,
+		      __u16 bus, __u32 vid, __u32 pid, const __u8 *rdesc, size_t rdesc_size)
+{
+	const char *path = "/dev/uhid";
+	time_t t;
+	int ret;
+
+	/* initialize random number generator */
+	srand((unsigned int)time(&t));
+
+	hid->dev_id = rand() % 1024;
+	hid->bus = bus;
+	hid->vid = vid;
+	hid->pid = pid;
+
+	hid->uhid_fd = open(path, O_RDWR | O_CLOEXEC);
+	ASSERT_GE(hid->uhid_fd, 0) TH_LOG("open uhid-cdev failed; %d", hid->uhid_fd);
+
+	ret = uhid_create(_metadata, hid->uhid_fd, hid->dev_id, bus, vid, pid,
+			  (__u8 *)rdesc, rdesc_size);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("create uhid device failed: %d", ret);
+		close(hid->uhid_fd);
+		return ret;
+	}
+
+	/* locate the uevent file of the created device */
+	hid->hid_id = get_hid_id(hid);
+	ASSERT_GT(hid->hid_id, 0)
+		TH_LOG("Could not locate uhid device id: %d", hid->hid_id);
+
+	ret = uhid_start_listener(_metadata, &hid->tid, hid->uhid_fd);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("could not start udev listener: %d", ret);
+		close(hid->uhid_fd);
+		return ret;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/hid/hidraw.c b/tools/testing/selftests/hid/hidraw.c
new file mode 100644
index 000000000000..d625772f8b7c
--- /dev/null
+++ b/tools/testing/selftests/hid/hidraw.c
@@ -0,0 +1,694 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022-2024 Red Hat */
+
+#include "hid_common.h"
+#include <linux/input.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+/* for older kernels */
+#ifndef HIDIOCREVOKE
+#define HIDIOCREVOKE	      _IOW('H', 0x0D, int) /* Revoke device access */
+#endif /* HIDIOCREVOKE */
+
+FIXTURE(hidraw) {
+	struct uhid_device hid;
+	int hidraw_fd;
+};
+static void close_hidraw(FIXTURE_DATA(hidraw) * self)
+{
+	if (self->hidraw_fd)
+		close(self->hidraw_fd);
+	self->hidraw_fd = 0;
+}
+
+FIXTURE_TEARDOWN(hidraw) {
+	void *uhid_err;
+
+	uhid_destroy(_metadata, &self->hid);
+
+	close_hidraw(self);
+	pthread_join(self->hid.tid, &uhid_err);
+}
+#define TEARDOWN_LOG(fmt, ...) do { \
+	TH_LOG(fmt, ##__VA_ARGS__); \
+	hidraw_teardown(_metadata, self, variant); \
+} while (0)
+
+FIXTURE_SETUP(hidraw)
+{
+	int err;
+
+	err = setup_uhid(_metadata, &self->hid, BUS_USB, 0x0001, 0x0a37, rdesc, sizeof(rdesc));
+	ASSERT_OK(err);
+
+	self->hidraw_fd = open_hidraw(&self->hid);
+	ASSERT_GE(self->hidraw_fd, 0) TH_LOG("open_hidraw");
+}
+
+/*
+ * A simple test to see if the fixture is working fine.
+ * If this fails, none of the other tests will pass.
+ */
+TEST_F(hidraw, test_create_uhid)
+{
+}
+
+/*
+ * Inject one event in the uhid device,
+ * check that we get the same data through hidraw
+ */
+TEST_F(hidraw, raw_event)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 42);
+}
+
+/*
+ * After initial opening/checks of hidraw, revoke the hidraw
+ * node and check that we can not read any more data.
+ */
+TEST_F(hidraw, raw_event_revoked)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+	ASSERT_EQ(buf[0], 1);
+	ASSERT_EQ(buf[1], 42);
+
+	/* call the revoke ioctl */
+	err = ioctl(self->hidraw_fd, HIDIOCREVOKE, NULL);
+	ASSERT_OK(err) TH_LOG("couldn't revoke the hidraw fd");
+
+	/* inject one other event */
+	buf[0] = 1;
+	buf[1] = 43;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	/* read the data from hidraw */
+	memset(buf, 0, sizeof(buf));
+	err = read(self->hidraw_fd, buf, sizeof(buf));
+	ASSERT_EQ(err, -1) TH_LOG("read_hidraw");
+	ASSERT_EQ(errno, ENODEV) TH_LOG("unexpected error code while reading the hidraw node: %d",
+					errno);
+}
+
+/*
+ * Revoke the hidraw node and check that we can not do any ioctl.
+ */
+TEST_F(hidraw, ioctl_revoked)
+{
+	int err, desc_size = 0;
+
+	/* call the revoke ioctl */
+	err = ioctl(self->hidraw_fd, HIDIOCREVOKE, NULL);
+	ASSERT_OK(err) TH_LOG("couldn't revoke the hidraw fd");
+
+	/* do an ioctl */
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESCSIZE, &desc_size);
+	ASSERT_EQ(err, -1) TH_LOG("ioctl_hidraw");
+	ASSERT_EQ(errno, ENODEV) TH_LOG("unexpected error code while doing an ioctl: %d",
+					errno);
+}
+
+/*
+ * Setup polling of the fd, and check that revoke works properly.
+ */
+TEST_F(hidraw, poll_revoked)
+{
+	struct pollfd pfds[1];
+	__u8 buf[10] = {0};
+	int err, ready;
+
+	/* setup polling */
+	pfds[0].fd = self->hidraw_fd;
+	pfds[0].events = POLLIN;
+
+	/* inject one event */
+	buf[0] = 1;
+	buf[1] = 42;
+	uhid_send_event(_metadata, &self->hid, buf, 6);
+
+	while (true) {
+		ready = poll(pfds, 1, 5000);
+		ASSERT_EQ(ready, 1) TH_LOG("poll return value");
+
+		if (pfds[0].revents & POLLIN) {
+			memset(buf, 0, sizeof(buf));
+			err = read(self->hidraw_fd, buf, sizeof(buf));
+			ASSERT_EQ(err, 6) TH_LOG("read_hidraw");
+			ASSERT_EQ(buf[0], 1);
+			ASSERT_EQ(buf[1], 42);
+
+			/* call the revoke ioctl */
+			err = ioctl(self->hidraw_fd, HIDIOCREVOKE, NULL);
+			ASSERT_OK(err) TH_LOG("couldn't revoke the hidraw fd");
+		} else {
+			break;
+		}
+	}
+
+	ASSERT_TRUE(pfds[0].revents & POLLHUP);
+}
+
+/*
+ * After initial opening/checks of hidraw, revoke the hidraw
+ * node and check that we can not read any more data.
+ */
+TEST_F(hidraw, write_event_revoked)
+{
+	struct timespec time_to_wait;
+	__u8 buf[10] = {0};
+	int err;
+
+	/* inject one event from hidraw */
+	buf[0] = 1; /* report ID */
+	buf[1] = 2;
+	buf[2] = 42;
+
+	pthread_mutex_lock(&uhid_output_mtx);
+
+	memset(output_report, 0, sizeof(output_report));
+	clock_gettime(CLOCK_REALTIME, &time_to_wait);
+	time_to_wait.tv_sec += 2;
+
+	err = write(self->hidraw_fd, buf, 3);
+	ASSERT_EQ(err, 3) TH_LOG("unexpected error while writing to hidraw node: %d", err);
+
+	err = pthread_cond_timedwait(&uhid_output_cond, &uhid_output_mtx, &time_to_wait);
+	ASSERT_OK(err) TH_LOG("error while calling waiting for the condition");
+
+	ASSERT_EQ(output_report[0], 1);
+	ASSERT_EQ(output_report[1], 2);
+	ASSERT_EQ(output_report[2], 42);
+
+	/* call the revoke ioctl */
+	err = ioctl(self->hidraw_fd, HIDIOCREVOKE, NULL);
+	ASSERT_OK(err) TH_LOG("couldn't revoke the hidraw fd");
+
+	/* inject one other event */
+	buf[0] = 1;
+	buf[1] = 43;
+	err = write(self->hidraw_fd, buf, 3);
+	ASSERT_LT(err, 0) TH_LOG("unexpected success while writing to hidraw node: %d", err);
+	ASSERT_EQ(errno, ENODEV) TH_LOG("unexpected error code while writing to hidraw node: %d",
+					errno);
+
+	pthread_mutex_unlock(&uhid_output_mtx);
+}
+
+/*
+ * Test HIDIOCGRDESCSIZE ioctl to get report descriptor size
+ */
+TEST_F(hidraw, ioctl_rdescsize)
+{
+	int desc_size = 0;
+	int err;
+
+	/* call HIDIOCGRDESCSIZE ioctl */
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESCSIZE, &desc_size);
+	ASSERT_EQ(err, 0) TH_LOG("HIDIOCGRDESCSIZE ioctl failed");
+
+	/* verify the size matches our test report descriptor */
+	ASSERT_EQ(desc_size, sizeof(rdesc))
+		TH_LOG("expected size %zu, got %d", sizeof(rdesc), desc_size);
+}
+
+/*
+ * Test HIDIOCGRDESC ioctl to get report descriptor data
+ */
+TEST_F(hidraw, ioctl_rdesc)
+{
+	struct hidraw_report_descriptor desc;
+	int err;
+
+	/* get the full report descriptor */
+	desc.size = sizeof(rdesc);
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESC, &desc);
+	ASSERT_EQ(err, 0) TH_LOG("HIDIOCGRDESC ioctl failed");
+
+	/* verify the descriptor data matches our test descriptor */
+	ASSERT_EQ(memcmp(desc.value, rdesc, sizeof(rdesc)), 0)
+		TH_LOG("report descriptor data mismatch");
+}
+
+/*
+ * Test HIDIOCGRDESC ioctl with smaller buffer size
+ */
+TEST_F(hidraw, ioctl_rdesc_small_buffer)
+{
+	struct hidraw_report_descriptor desc;
+	int err;
+	size_t small_size = sizeof(rdesc) / 2; /* request half the descriptor size */
+
+	/* get partial report descriptor */
+	desc.size = small_size;
+	err = ioctl(self->hidraw_fd, HIDIOCGRDESC, &desc);
+	ASSERT_EQ(err, 0) TH_LOG("HIDIOCGRDESC ioctl failed with small buffer");
+
+	/* verify we got the first part of the descriptor */
+	ASSERT_EQ(memcmp(desc.value, rdesc, small_size), 0)
+		TH_LOG("partial report descriptor data mismatch");
+}
+
+/*
+ * Test HIDIOCGRAWINFO ioctl to get device information
+ */
+TEST_F(hidraw, ioctl_rawinfo)
+{
+	struct hidraw_devinfo devinfo;
+	int err;
+
+	/* get device info */
+	err = ioctl(self->hidraw_fd, HIDIOCGRAWINFO, &devinfo);
+	ASSERT_EQ(err, 0) TH_LOG("HIDIOCGRAWINFO ioctl failed");
+
+	/* verify device info matches our test setup */
+	ASSERT_EQ(devinfo.bustype, BUS_USB)
+		TH_LOG("expected bustype 0x03, got 0x%x", devinfo.bustype);
+	ASSERT_EQ(devinfo.vendor, 0x0001)
+		TH_LOG("expected vendor 0x0001, got 0x%x", devinfo.vendor);
+	ASSERT_EQ(devinfo.product, 0x0a37)
+		TH_LOG("expected product 0x0a37, got 0x%x", devinfo.product);
+}
+
+/*
+ * Test HIDIOCGFEATURE ioctl to get feature report
+ */
+TEST_F(hidraw, ioctl_gfeature)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set report ID 1 in first byte */
+	buf[0] = 1;
+
+	/* get feature report */
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_EQ(err, sizeof(feature_data)) TH_LOG("HIDIOCGFEATURE ioctl failed, got %d", err);
+
+	/* verify we got the expected feature data */
+	ASSERT_EQ(buf[0], feature_data[0])
+		TH_LOG("expected feature_data[0] = %d, got %d", feature_data[0], buf[0]);
+	ASSERT_EQ(buf[1], feature_data[1])
+		TH_LOG("expected feature_data[1] = %d, got %d", feature_data[1], buf[1]);
+}
+
+/*
+ * Test HIDIOCGFEATURE ioctl with invalid report ID
+ */
+TEST_F(hidraw, ioctl_gfeature_invalid)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set invalid report ID (not 1) */
+	buf[0] = 2;
+
+	/* try to get feature report */
+	err = ioctl(self->hidraw_fd, HIDIOCGFEATURE(sizeof(buf)), buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGFEATURE should have failed with invalid report ID");
+	ASSERT_EQ(errno, EIO) TH_LOG("expected EIO, got errno %d", errno);
+}
+
+/*
+ * Test ioctl with incorrect nr bits
+ */
+TEST_F(hidraw, ioctl_invalid_nr)
+{
+	char buf[256] = {0};
+	int err;
+	unsigned int bad_cmd;
+
+	/*
+	 * craft an ioctl command with wrong _IOC_NR bits
+	 */
+	bad_cmd = _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x00, sizeof(buf)); /* 0 is not valid */
+
+	/* test the ioctl */
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("ioctl read-write with wrong _IOC_NR (0) should have failed");
+	ASSERT_EQ(errno, ENOTTY)
+		TH_LOG("expected ENOTTY for wrong read-write _IOC_NR (0), got errno %d", errno);
+
+	/*
+	 * craft an ioctl command with wrong _IOC_NR bits
+	 */
+	bad_cmd = _IOC(_IOC_READ, 'H', 0x00, sizeof(buf)); /* 0 is not valid */
+
+	/* test the ioctl */
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("ioctl read-only with wrong _IOC_NR (0) should have failed");
+	ASSERT_EQ(errno, ENOTTY)
+		TH_LOG("expected ENOTTY for wrong read-only _IOC_NR (0), got errno %d", errno);
+
+	/* also test with bigger number */
+	bad_cmd = _IOC(_IOC_READ, 'H', 0x42, sizeof(buf)); /* 0x42 is not valid as well */
+
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("ioctl read-only with wrong _IOC_NR (0x42) should have failed");
+	ASSERT_EQ(errno, ENOTTY)
+		TH_LOG("expected ENOTTY for wrong read-only _IOC_NR (0x42), got errno %d", errno);
+
+	/* also test with bigger number: 0x42 is not valid as well */
+	bad_cmd = _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x42, sizeof(buf));
+
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("ioctl read-write with wrong _IOC_NR (0x42) should have failed");
+	ASSERT_EQ(errno, ENOTTY)
+		TH_LOG("expected ENOTTY for wrong read-write _IOC_NR (0x42), got errno %d", errno);
+}
+
+/*
+ * Test ioctl with incorrect type bits
+ */
+TEST_F(hidraw, ioctl_invalid_type)
+{
+	char buf[256] = {0};
+	int err;
+	unsigned int bad_cmd;
+
+	/*
+	 * craft an ioctl command with wrong _IOC_TYPE bits
+	 */
+	bad_cmd = _IOC(_IOC_WRITE|_IOC_READ, 'I', 0x01, sizeof(buf)); /* 'I' should be 'H' */
+
+	/* test the ioctl */
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("ioctl with wrong _IOC_TYPE (I) should have failed");
+	ASSERT_EQ(errno, EINVAL) TH_LOG("expected EINVAL for wrong _IOC_NR, got errno %d", errno);
+}
+
+/*
+ * Test HIDIOCGFEATURE ioctl with incorrect _IOC_DIR bits
+ */
+TEST_F(hidraw, ioctl_gfeature_invalid_dir)
+{
+	__u8 buf[10] = {0};
+	int err;
+	unsigned int bad_cmd;
+
+	/* set report ID 1 in first byte */
+	buf[0] = 1;
+
+	/*
+	 * craft an ioctl command with wrong _IOC_DIR bits
+	 * HIDIOCGFEATURE should have _IOC_WRITE|_IOC_READ, let's use only _IOC_WRITE
+	 */
+	bad_cmd = _IOC(_IOC_WRITE, 'H', 0x07, sizeof(buf)); /* should be _IOC_WRITE|_IOC_READ */
+
+	/* try to get feature report with wrong direction bits */
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGFEATURE with wrong _IOC_DIR should have failed");
+	ASSERT_EQ(errno, EINVAL) TH_LOG("expected EINVAL for wrong _IOC_DIR, got errno %d", errno);
+
+	/* also test with only _IOC_READ */
+	bad_cmd = _IOC(_IOC_READ, 'H', 0x07, sizeof(buf)); /* should be _IOC_WRITE|_IOC_READ */
+
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGFEATURE with wrong _IOC_DIR should have failed");
+	ASSERT_EQ(errno, EINVAL) TH_LOG("expected EINVAL for wrong _IOC_DIR, got errno %d", errno);
+}
+
+/*
+ * Test read-only ioctl with incorrect _IOC_DIR bits
+ */
+TEST_F(hidraw, ioctl_readonly_invalid_dir)
+{
+	char buf[256] = {0};
+	int err;
+	unsigned int bad_cmd;
+
+	/*
+	 * craft an ioctl command with wrong _IOC_DIR bits
+	 * HIDIOCGRAWNAME should have _IOC_READ, let's use _IOC_WRITE
+	 */
+	bad_cmd = _IOC(_IOC_WRITE, 'H', 0x04, sizeof(buf)); /* should be _IOC_READ */
+
+	/* try to get device name with wrong direction bits */
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGRAWNAME with wrong _IOC_DIR should have failed");
+	ASSERT_EQ(errno, EINVAL) TH_LOG("expected EINVAL for wrong _IOC_DIR, got errno %d", errno);
+
+	/* also test with _IOC_WRITE|_IOC_READ */
+	bad_cmd = _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x04, sizeof(buf)); /* should be only _IOC_READ */
+
+	err = ioctl(self->hidraw_fd, bad_cmd, buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGRAWNAME with wrong _IOC_DIR should have failed");
+	ASSERT_EQ(errno, EINVAL) TH_LOG("expected EINVAL for wrong _IOC_DIR, got errno %d", errno);
+}
+
+/*
+ * Test HIDIOCSFEATURE ioctl to set feature report
+ */
+TEST_F(hidraw, ioctl_sfeature)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* prepare feature report data */
+	buf[0] = 1; /* report ID */
+	buf[1] = 0x42;
+	buf[2] = 0x24;
+
+	/* set feature report */
+	err = ioctl(self->hidraw_fd, HIDIOCSFEATURE(3), buf);
+	ASSERT_EQ(err, 3) TH_LOG("HIDIOCSFEATURE ioctl failed, got %d", err);
+
+	/*
+	 * Note: The uhid mock doesn't validate the set report data,
+	 * so we just verify the ioctl succeeds
+	 */
+}
+
+/*
+ * Test HIDIOCGINPUT ioctl to get input report
+ */
+TEST_F(hidraw, ioctl_ginput)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set report ID 1 in first byte */
+	buf[0] = 1;
+
+	/* get input report */
+	err = ioctl(self->hidraw_fd, HIDIOCGINPUT(sizeof(buf)), buf);
+	ASSERT_EQ(err, sizeof(feature_data)) TH_LOG("HIDIOCGINPUT ioctl failed, got %d", err);
+
+	/* verify we got the expected input data */
+	ASSERT_EQ(buf[0], feature_data[0])
+		TH_LOG("expected feature_data[0] = %d, got %d", feature_data[0], buf[0]);
+	ASSERT_EQ(buf[1], feature_data[1])
+		TH_LOG("expected feature_data[1] = %d, got %d", feature_data[1], buf[1]);
+}
+
+/*
+ * Test HIDIOCGINPUT ioctl with invalid report ID
+ */
+TEST_F(hidraw, ioctl_ginput_invalid)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set invalid report ID (not 1) */
+	buf[0] = 2;
+
+	/* try to get input report */
+	err = ioctl(self->hidraw_fd, HIDIOCGINPUT(sizeof(buf)), buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGINPUT should have failed with invalid report ID");
+	ASSERT_EQ(errno, EIO) TH_LOG("expected EIO, got errno %d", errno);
+}
+
+/*
+ * Test HIDIOCSINPUT ioctl to set input report
+ */
+TEST_F(hidraw, ioctl_sinput)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* prepare input report data */
+	buf[0] = 1; /* report ID */
+	buf[1] = 0x55;
+	buf[2] = 0xAA;
+
+	/* set input report */
+	err = ioctl(self->hidraw_fd, HIDIOCSINPUT(3), buf);
+	ASSERT_EQ(err, 3) TH_LOG("HIDIOCSINPUT ioctl failed, got %d", err);
+
+	/*
+	 * Note: The uhid mock doesn't validate the set report data,
+	 * so we just verify the ioctl succeeds
+	 */
+}
+
+/*
+ * Test HIDIOCGOUTPUT ioctl to get output report
+ */
+TEST_F(hidraw, ioctl_goutput)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set report ID 1 in first byte */
+	buf[0] = 1;
+
+	/* get output report */
+	err = ioctl(self->hidraw_fd, HIDIOCGOUTPUT(sizeof(buf)), buf);
+	ASSERT_EQ(err, sizeof(feature_data)) TH_LOG("HIDIOCGOUTPUT ioctl failed, got %d", err);
+
+	/* verify we got the expected output data */
+	ASSERT_EQ(buf[0], feature_data[0])
+		TH_LOG("expected feature_data[0] = %d, got %d", feature_data[0], buf[0]);
+	ASSERT_EQ(buf[1], feature_data[1])
+		TH_LOG("expected feature_data[1] = %d, got %d", feature_data[1], buf[1]);
+}
+
+/*
+ * Test HIDIOCGOUTPUT ioctl with invalid report ID
+ */
+TEST_F(hidraw, ioctl_goutput_invalid)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* set invalid report ID (not 1) */
+	buf[0] = 2;
+
+	/* try to get output report */
+	err = ioctl(self->hidraw_fd, HIDIOCGOUTPUT(sizeof(buf)), buf);
+	ASSERT_LT(err, 0) TH_LOG("HIDIOCGOUTPUT should have failed with invalid report ID");
+	ASSERT_EQ(errno, EIO) TH_LOG("expected EIO, got errno %d", errno);
+}
+
+/*
+ * Test HIDIOCSOUTPUT ioctl to set output report
+ */
+TEST_F(hidraw, ioctl_soutput)
+{
+	__u8 buf[10] = {0};
+	int err;
+
+	/* prepare output report data */
+	buf[0] = 1; /* report ID */
+	buf[1] = 0x33;
+	buf[2] = 0xCC;
+
+	/* set output report */
+	err = ioctl(self->hidraw_fd, HIDIOCSOUTPUT(3), buf);
+	ASSERT_EQ(err, 3) TH_LOG("HIDIOCSOUTPUT ioctl failed, got %d", err);
+
+	/*
+	 * Note: The uhid mock doesn't validate the set report data,
+	 * so we just verify the ioctl succeeds
+	 */
+}
+
+/*
+ * Test HIDIOCGRAWNAME ioctl to get device name string
+ */
+TEST_F(hidraw, ioctl_rawname)
+{
+	char name[256] = {0};
+	char expected_name[64];
+	int err;
+
+	/* get device name */
+	err = ioctl(self->hidraw_fd, HIDIOCGRAWNAME(sizeof(name)), name);
+	ASSERT_GT(err, 0) TH_LOG("HIDIOCGRAWNAME ioctl failed, got %d", err);
+
+	/* construct expected name based on device id */
+	snprintf(expected_name, sizeof(expected_name), "test-uhid-device-%d", self->hid.dev_id);
+
+	/* verify the name matches expected pattern */
+	ASSERT_EQ(strcmp(name, expected_name), 0)
+		TH_LOG("expected name '%s', got '%s'", expected_name, name);
+}
+
+/*
+ * Test HIDIOCGRAWPHYS ioctl to get device physical address string
+ */
+TEST_F(hidraw, ioctl_rawphys)
+{
+	char phys[256] = {0};
+	char expected_phys[64];
+	int err;
+
+	/* get device physical address */
+	err = ioctl(self->hidraw_fd, HIDIOCGRAWPHYS(sizeof(phys)), phys);
+	ASSERT_GT(err, 0) TH_LOG("HIDIOCGRAWPHYS ioctl failed, got %d", err);
+
+	/* construct expected phys based on device id */
+	snprintf(expected_phys, sizeof(expected_phys), "%d", self->hid.dev_id);
+
+	/* verify the phys matches expected value */
+	ASSERT_EQ(strcmp(phys, expected_phys), 0)
+		TH_LOG("expected phys '%s', got '%s'", expected_phys, phys);
+}
+
+/*
+ * Test HIDIOCGRAWUNIQ ioctl to get device unique identifier string
+ */
+TEST_F(hidraw, ioctl_rawuniq)
+{
+	char uniq[256] = {0};
+	int err;
+
+	/* get device unique identifier */
+	err = ioctl(self->hidraw_fd, HIDIOCGRAWUNIQ(sizeof(uniq)), uniq);
+	ASSERT_GE(err, 0) TH_LOG("HIDIOCGRAWUNIQ ioctl failed, got %d", err);
+
+	/* uniq is typically empty in our test setup */
+	ASSERT_EQ(strlen(uniq), 0) TH_LOG("expected empty uniq, got '%s'", uniq);
+}
+
+/*
+ * Test device string ioctls with small buffer sizes
+ */
+TEST_F(hidraw, ioctl_strings_small_buffer)
+{
+	char small_buf[8] = {0};
+	char expected_name[64];
+	int err;
+
+	/* test HIDIOCGRAWNAME with small buffer */
+	err = ioctl(self->hidraw_fd, HIDIOCGRAWNAME(sizeof(small_buf)), small_buf);
+	ASSERT_EQ(err, sizeof(small_buf))
+		TH_LOG("HIDIOCGRAWNAME with small buffer failed, got %d", err);
+
+	/* construct expected truncated name */
+	snprintf(expected_name, sizeof(expected_name), "test-uhid-device-%d", self->hid.dev_id);
+
+	/* verify we got truncated name (first 8 chars, no null terminator guaranteed) */
+	ASSERT_EQ(strncmp(small_buf, expected_name, sizeof(small_buf)), 0)
+		TH_LOG("expected truncated name to match first %zu chars", sizeof(small_buf));
+
+	/* Note: hidraw driver doesn't guarantee null termination when buffer is too small */
+}
+
+int main(int argc, char **argv)
+{
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/hid/progs/hid.c b/tools/testing/selftests/hid/progs/hid.c
new file mode 100644
index 000000000000..5ecc845ef792
--- /dev/null
+++ b/tools/testing/selftests/hid/progs/hid.c
@@ -0,0 +1,600 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Red hat */
+#include "hid_bpf_helpers.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct attach_prog_args {
+	int prog_fd;
+	unsigned int hid;
+	int retval;
+	int insert_head;
+};
+
+__u64 callback_check = 52;
+__u64 callback2_check = 52;
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_first_event, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 3 /* size */);
+
+	if (!rw_data)
+		return 0; /* EPERM check */
+
+	callback_check = rw_data[1];
+
+	rw_data[2] = rw_data[1] + 5;
+
+	return hid_ctx->size;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops first_event = {
+	.hid_device_event = (void *)hid_first_event,
+	.hid_id = 2,
+};
+
+int __hid_subprog_first_event(struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 3 /* size */);
+
+	if (!rw_data)
+		return 0; /* EPERM check */
+
+	rw_data[2] = rw_data[1] + 5;
+
+	return hid_ctx->size;
+}
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_subprog_first_event, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	return __hid_subprog_first_event(hid_ctx, type);
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops subprog_first_event = {
+	.hid_device_event = (void *)hid_subprog_first_event,
+	.hid_id = 2,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_second_event, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4 /* size */);
+
+	if (!rw_data)
+		return 0; /* EPERM check */
+
+	rw_data[3] = rw_data[2] + 5;
+
+	return hid_ctx->size;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops second_event = {
+	.hid_device_event = (void *)hid_second_event,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_change_report_id, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *rw_data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 3 /* size */);
+
+	if (!rw_data)
+		return 0; /* EPERM check */
+
+	rw_data[0] = 2;
+
+	return 9;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops change_report_id = {
+	.hid_device_event = (void *)hid_change_report_id,
+};
+
+struct hid_hw_request_syscall_args {
+	/* data needs to come at offset 0 so we can use it in calls */
+	__u8 data[10];
+	unsigned int hid;
+	int retval;
+	size_t size;
+	enum hid_report_type type;
+	__u8 request_type;
+};
+
+SEC("syscall")
+int hid_user_raw_request(struct hid_hw_request_syscall_args *args)
+{
+	struct hid_bpf_ctx *ctx;
+	const size_t size = args->size;
+	int i, ret = 0;
+
+	if (size > sizeof(args->data))
+		return -7; /* -E2BIG */
+
+	ctx = hid_bpf_allocate_context(args->hid);
+	if (!ctx)
+		return -1; /* EPERM check */
+
+	ret = hid_bpf_hw_request(ctx,
+				 args->data,
+				 size,
+				 args->type,
+				 args->request_type);
+	args->retval = ret;
+
+	hid_bpf_release_context(ctx);
+
+	return 0;
+}
+
+SEC("syscall")
+int hid_user_output_report(struct hid_hw_request_syscall_args *args)
+{
+	struct hid_bpf_ctx *ctx;
+	const size_t size = args->size;
+	int i, ret = 0;
+
+	if (size > sizeof(args->data))
+		return -7; /* -E2BIG */
+
+	ctx = hid_bpf_allocate_context(args->hid);
+	if (!ctx)
+		return -1; /* EPERM check */
+
+	ret = hid_bpf_hw_output_report(ctx,
+				       args->data,
+				       size);
+	args->retval = ret;
+
+	hid_bpf_release_context(ctx);
+
+	return 0;
+}
+
+SEC("syscall")
+int hid_user_input_report(struct hid_hw_request_syscall_args *args)
+{
+	struct hid_bpf_ctx *ctx;
+	const size_t size = args->size;
+	int i, ret = 0;
+
+	if (size > sizeof(args->data))
+		return -7; /* -E2BIG */
+
+	ctx = hid_bpf_allocate_context(args->hid);
+	if (!ctx)
+		return -1; /* EPERM check */
+
+	ret = hid_bpf_input_report(ctx, HID_INPUT_REPORT, args->data, size);
+	args->retval = ret;
+
+	hid_bpf_release_context(ctx);
+
+	return 0;
+}
+
+static const __u8 rdesc[] = {
+	0x05, 0x01,				/* USAGE_PAGE (Generic Desktop) */
+	0x09, 0x32,				/* USAGE (Z) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x81, 0x06,				/* INPUT (Data,Var,Rel) */
+
+	0x06, 0x00, 0xff,			/* Usage Page (Vendor Defined Page 1) */
+	0x19, 0x01,				/* USAGE_MINIMUM (1) */
+	0x29, 0x03,				/* USAGE_MAXIMUM (3) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0x01,				/* LOGICAL_MAXIMUM (1) */
+	0x95, 0x03,				/* REPORT_COUNT (3) */
+	0x75, 0x01,				/* REPORT_SIZE (1) */
+	0x91, 0x02,				/* Output (Data,Var,Abs) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x75, 0x05,				/* REPORT_SIZE (5) */
+	0x91, 0x01,				/* Output (Cnst,Var,Abs) */
+
+	0x06, 0x00, 0xff,			/* Usage Page (Vendor Defined Page 1) */
+	0x19, 0x06,				/* USAGE_MINIMUM (6) */
+	0x29, 0x08,				/* USAGE_MAXIMUM (8) */
+	0x15, 0x00,				/* LOGICAL_MINIMUM (0) */
+	0x25, 0x01,				/* LOGICAL_MAXIMUM (1) */
+	0x95, 0x03,				/* REPORT_COUNT (3) */
+	0x75, 0x01,				/* REPORT_SIZE (1) */
+	0xb1, 0x02,				/* Feature (Data,Var,Abs) */
+	0x95, 0x01,				/* REPORT_COUNT (1) */
+	0x75, 0x05,				/* REPORT_SIZE (5) */
+	0x91, 0x01,				/* Output (Cnst,Var,Abs) */
+
+	0xc0,				/* END_COLLECTION */
+	0xc0,			/* END_COLLECTION */
+};
+
+/*
+ * the following program is marked as sleepable (struct_ops.s).
+ * This is not strictly mandatory but is a nice test for
+ * sleepable struct_ops
+ */
+SEC("?struct_ops.s/hid_rdesc_fixup")
+int BPF_PROG(hid_rdesc_fixup, struct hid_bpf_ctx *hid_ctx)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4096 /* size */);
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	callback2_check = data[4];
+
+	/* insert rdesc at offset 73 */
+	__builtin_memcpy(&data[73], rdesc, sizeof(rdesc));
+
+	/* Change Usage Vendor globally */
+	data[4] = 0x42;
+
+	return sizeof(rdesc) + 73;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops rdesc_fixup = {
+	.hid_rdesc_fixup = (void *)hid_rdesc_fixup,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_insert1, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4 /* size */);
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* we need to be run first */
+	if (data[2] || data[3])
+		return -1;
+
+	data[1] = 1;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_insert1 = {
+	.hid_device_event = (void *)hid_test_insert1,
+	.flags = BPF_F_BEFORE,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_insert2, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4 /* size */);
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* after insert0 and before insert2 */
+	if (!data[1] || data[3])
+		return -1;
+
+	data[2] = 2;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_insert2 = {
+	.hid_device_event = (void *)hid_test_insert2,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_insert3, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 4 /* size */);
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* at the end */
+	if (!data[1] || !data[2])
+		return -1;
+
+	data[3] = 3;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_insert3 = {
+	.hid_device_event = (void *)hid_test_insert3,
+};
+
+SEC("?struct_ops/hid_hw_request")
+int BPF_PROG(hid_test_filter_raw_request, struct hid_bpf_ctx *hctx, unsigned char reportnum,
+	     enum hid_report_type rtype, enum hid_class_request reqtype, __u64 source)
+{
+	return -20;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_filter_raw_request = {
+	.hid_hw_request = (void *)hid_test_filter_raw_request,
+};
+
+static struct file *current_file;
+
+SEC("fentry/hidraw_open")
+int BPF_PROG(hidraw_open, struct inode *inode, struct file *file)
+{
+	current_file = file;
+	return 0;
+}
+
+SEC("?struct_ops.s/hid_hw_request")
+int BPF_PROG(hid_test_hidraw_raw_request, struct hid_bpf_ctx *hctx, unsigned char reportnum,
+	     enum hid_report_type rtype, enum hid_class_request reqtype, __u64 source)
+{
+	__u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 3 /* size */);
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* check if the incoming request comes from our hidraw operation */
+	if (source == (__u64)current_file) {
+		data[0] = reportnum;
+
+		ret = hid_bpf_hw_request(hctx, data, 2, rtype, reqtype);
+		if (ret != 2)
+			return -1;
+		data[0] = reportnum + 1;
+		data[1] = reportnum + 2;
+		data[2] = reportnum + 3;
+		return 3;
+	}
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_hidraw_raw_request = {
+	.hid_hw_request = (void *)hid_test_hidraw_raw_request,
+};
+
+SEC("?struct_ops.s/hid_hw_request")
+int BPF_PROG(hid_test_infinite_loop_raw_request, struct hid_bpf_ctx *hctx, unsigned char reportnum,
+	     enum hid_report_type rtype, enum hid_class_request reqtype, __u64 source)
+{
+	__u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 3 /* size */);
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* always forward the request as-is to the device, hid-bpf should prevent
+	 * infinite loops.
+	 */
+	data[0] = reportnum;
+
+	ret = hid_bpf_hw_request(hctx, data, 2, rtype, reqtype);
+	if (ret == 2)
+		return 3;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_infinite_loop_raw_request = {
+	.hid_hw_request = (void *)hid_test_infinite_loop_raw_request,
+};
+
+SEC("?struct_ops/hid_hw_output_report")
+int BPF_PROG(hid_test_filter_output_report, struct hid_bpf_ctx *hctx, unsigned char reportnum,
+	     enum hid_report_type rtype, enum hid_class_request reqtype, __u64 source)
+{
+	return -25;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_filter_output_report = {
+	.hid_hw_output_report = (void *)hid_test_filter_output_report,
+};
+
+SEC("?struct_ops.s/hid_hw_output_report")
+int BPF_PROG(hid_test_hidraw_output_report, struct hid_bpf_ctx *hctx, __u64 source)
+{
+	__u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 3 /* size */);
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* check if the incoming request comes from our hidraw operation */
+	if (source == (__u64)current_file)
+		return hid_bpf_hw_output_report(hctx, data, 2);
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_hidraw_output_report = {
+	.hid_hw_output_report = (void *)hid_test_hidraw_output_report,
+};
+
+SEC("?struct_ops.s/hid_hw_output_report")
+int BPF_PROG(hid_test_infinite_loop_output_report, struct hid_bpf_ctx *hctx, __u64 source)
+{
+	__u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 3 /* size */);
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/* always forward the request as-is to the device, hid-bpf should prevent
+	 * infinite loops.
+	 */
+
+	ret = hid_bpf_hw_output_report(hctx, data, 2);
+	if (ret == 2)
+		return 2;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_infinite_loop_output_report = {
+	.hid_hw_output_report = (void *)hid_test_infinite_loop_output_report,
+};
+
+struct elem {
+	struct bpf_wq work;
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 1);
+	__type(key, int);
+	__type(value, struct elem);
+} hmap SEC(".maps");
+
+static int wq_cb_sleepable(void *map, int *key, void *work)
+{
+	__u8 buf[9] = {2, 3, 4, 5, 6, 7, 8, 9, 10};
+	struct hid_bpf_ctx *hid_ctx;
+
+	hid_ctx = hid_bpf_allocate_context(*key);
+	if (!hid_ctx)
+		return 0; /* EPERM check */
+
+	hid_bpf_input_report(hid_ctx, HID_INPUT_REPORT, buf, sizeof(buf));
+
+	hid_bpf_release_context(hid_ctx);
+
+	return 0;
+}
+
+static int test_inject_input_report_callback(int *key)
+{
+	struct elem init = {}, *val;
+	struct bpf_wq *wq;
+
+	if (bpf_map_update_elem(&hmap, key, &init, 0))
+		return -1;
+
+	val = bpf_map_lookup_elem(&hmap, key);
+	if (!val)
+		return -2;
+
+	wq = &val->work;
+	if (bpf_wq_init(wq, &hmap, 0) != 0)
+		return -3;
+
+	if (bpf_wq_set_callback(wq, wq_cb_sleepable, 0))
+		return -4;
+
+	if (bpf_wq_start(wq, 0))
+		return -5;
+
+	return 0;
+}
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_multiply_events_wq, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 9 /* size */);
+	int hid = hid_ctx->hid->id;
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	if (data[0] != 1)
+		return 0;
+
+	ret = test_inject_input_report_callback(&hid);
+	if (ret)
+		return ret;
+
+	data[1] += 5;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_multiply_events_wq = {
+	.hid_device_event = (void *)hid_test_multiply_events_wq,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_multiply_events, struct hid_bpf_ctx *hid_ctx, enum hid_report_type type)
+{
+	__u8 *data = hid_bpf_get_data(hid_ctx, 0 /* offset */, 9 /* size */);
+	__u8 buf[9];
+	int ret;
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	if (data[0] != 1)
+		return 0;
+
+	/*
+	 * we have to use an intermediate buffer as hid_bpf_input_report
+	 * will memset data to \0
+	 */
+	__builtin_memcpy(buf, data, sizeof(buf));
+
+	buf[0] = 2;
+	buf[1] += 5;
+	ret = hid_bpf_try_input_report(hid_ctx, HID_INPUT_REPORT, buf, sizeof(buf));
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * In real world we should reset the original buffer as data might be garbage now,
+	 * but it actually now has the content of 'buf'
+	 */
+	data[1] += 5;
+
+	return 9;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_multiply_events = {
+	.hid_device_event = (void *)hid_test_multiply_events,
+};
+
+SEC("?struct_ops/hid_device_event")
+int BPF_PROG(hid_test_infinite_loop_input_report, struct hid_bpf_ctx *hctx,
+	     enum hid_report_type report_type, __u64 source)
+{
+	__u8 *data = hid_bpf_get_data(hctx, 0 /* offset */, 6 /* size */);
+	__u8 buf[6];
+
+	if (!data)
+		return 0; /* EPERM check */
+
+	/*
+	 * we have to use an intermediate buffer as hid_bpf_input_report
+	 * will memset data to \0
+	 */
+	__builtin_memcpy(buf, data, sizeof(buf));
+
+	/* always forward the request as-is to the device, hid-bpf should prevent
+	 * infinite loops.
+	 * the return value is ignored so the event is passing to userspace.
+	 */
+
+	hid_bpf_try_input_report(hctx, report_type, buf, sizeof(buf));
+
+	/* each time we process the event, we increment by one data[1]:
+	 * after each successful call to hid_bpf_try_input_report, buf
+	 * has been memcopied into data by the kernel.
+	 */
+	data[1] += 1;
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct hid_bpf_ops test_infinite_loop_input_report = {
+	.hid_device_event = (void *)hid_test_infinite_loop_input_report,
+};
diff --git a/tools/testing/selftests/hid/progs/hid_bpf_helpers.h b/tools/testing/selftests/hid/progs/hid_bpf_helpers.h
new file mode 100644
index 000000000000..531228b849da
--- /dev/null
+++ b/tools/testing/selftests/hid/progs/hid_bpf_helpers.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2022 Benjamin Tissoires
+ */
+
+#ifndef __HID_BPF_HELPERS_H
+#define __HID_BPF_HELPERS_H
+
+/* "undefine" structs and enums in vmlinux.h, because we "override" them below */
+#define hid_bpf_ctx hid_bpf_ctx___not_used
+#define hid_bpf_ops hid_bpf_ops___not_used
+#define hid_report_type hid_report_type___not_used
+#define hid_class_request hid_class_request___not_used
+#define hid_bpf_attach_flags hid_bpf_attach_flags___not_used
+#define HID_INPUT_REPORT         HID_INPUT_REPORT___not_used
+#define HID_OUTPUT_REPORT        HID_OUTPUT_REPORT___not_used
+#define HID_FEATURE_REPORT       HID_FEATURE_REPORT___not_used
+#define HID_REPORT_TYPES         HID_REPORT_TYPES___not_used
+#define HID_REQ_GET_REPORT       HID_REQ_GET_REPORT___not_used
+#define HID_REQ_GET_IDLE         HID_REQ_GET_IDLE___not_used
+#define HID_REQ_GET_PROTOCOL     HID_REQ_GET_PROTOCOL___not_used
+#define HID_REQ_SET_REPORT       HID_REQ_SET_REPORT___not_used
+#define HID_REQ_SET_IDLE         HID_REQ_SET_IDLE___not_used
+#define HID_REQ_SET_PROTOCOL     HID_REQ_SET_PROTOCOL___not_used
+
+/* do not define kfunc through vmlinux.h as this messes up our custom hack */
+#define BPF_NO_KFUNC_PROTOTYPES
+
+#include "vmlinux.h"
+
+#undef hid_bpf_ctx
+#undef hid_bpf_ops
+#undef hid_report_type
+#undef hid_class_request
+#undef hid_bpf_attach_flags
+#undef HID_INPUT_REPORT
+#undef HID_OUTPUT_REPORT
+#undef HID_FEATURE_REPORT
+#undef HID_REPORT_TYPES
+#undef HID_REQ_GET_REPORT
+#undef HID_REQ_GET_IDLE
+#undef HID_REQ_GET_PROTOCOL
+#undef HID_REQ_SET_REPORT
+#undef HID_REQ_SET_IDLE
+#undef HID_REQ_SET_PROTOCOL
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+#include <linux/const.h>
+
+enum hid_report_type {
+	HID_INPUT_REPORT		= 0,
+	HID_OUTPUT_REPORT		= 1,
+	HID_FEATURE_REPORT		= 2,
+
+	HID_REPORT_TYPES,
+};
+
+struct hid_bpf_ctx {
+	struct hid_device *hid;
+	__u32 allocated_size;
+	union {
+		__s32 retval;
+		__s32 size;
+	};
+} __attribute__((preserve_access_index));
+
+enum hid_class_request {
+	HID_REQ_GET_REPORT		= 0x01,
+	HID_REQ_GET_IDLE		= 0x02,
+	HID_REQ_GET_PROTOCOL		= 0x03,
+	HID_REQ_SET_REPORT		= 0x09,
+	HID_REQ_SET_IDLE		= 0x0A,
+	HID_REQ_SET_PROTOCOL		= 0x0B,
+};
+
+struct hid_bpf_ops {
+	int			hid_id;
+	u32			flags;
+	struct list_head	list;
+	int (*hid_device_event)(struct hid_bpf_ctx *ctx, enum hid_report_type report_type,
+				u64 source);
+	int (*hid_rdesc_fixup)(struct hid_bpf_ctx *ctx);
+	int (*hid_hw_request)(struct hid_bpf_ctx *ctx, unsigned char reportnum,
+			       enum hid_report_type rtype, enum hid_class_request reqtype,
+			       u64 source);
+	int (*hid_hw_output_report)(struct hid_bpf_ctx *ctx, u64 source);
+	struct hid_device *hdev;
+};
+
+#ifndef BPF_F_BEFORE
+#define BPF_F_BEFORE (1U << 3)
+#endif
+
+/* following are kfuncs exported by HID for HID-BPF */
+extern __u8 *hid_bpf_get_data(struct hid_bpf_ctx *ctx,
+			      unsigned int offset,
+			      const size_t __sz) __weak __ksym;
+extern struct hid_bpf_ctx *hid_bpf_allocate_context(unsigned int hid_id) __weak __ksym;
+extern void hid_bpf_release_context(struct hid_bpf_ctx *ctx) __weak __ksym;
+extern int hid_bpf_hw_request(struct hid_bpf_ctx *ctx,
+			      __u8 *data,
+			      size_t buf__sz,
+			      enum hid_report_type type,
+			      enum hid_class_request reqtype) __weak __ksym;
+extern int hid_bpf_hw_output_report(struct hid_bpf_ctx *ctx,
+				    __u8 *buf, size_t buf__sz) __weak __ksym;
+extern int hid_bpf_input_report(struct hid_bpf_ctx *ctx,
+				enum hid_report_type type,
+				__u8 *data,
+				size_t buf__sz) __weak __ksym;
+extern int hid_bpf_try_input_report(struct hid_bpf_ctx *ctx,
+				    enum hid_report_type type,
+				    __u8 *data,
+				    size_t buf__sz) __weak __ksym;
+
+/* bpf_wq implementation */
+extern int bpf_wq_init(struct bpf_wq *wq, void *p__map, unsigned int flags) __weak __ksym;
+extern int bpf_wq_start(struct bpf_wq *wq, unsigned int flags) __weak __ksym;
+extern int bpf_wq_set_callback_impl(struct bpf_wq *wq,
+		int (callback_fn)(void *map, int *key, void *wq),
+		unsigned int flags__k, void *aux__ign) __weak __ksym;
+#define bpf_wq_set_callback(timer, cb, flags) \
+	bpf_wq_set_callback_impl(timer, cb, flags, NULL)
+
+#endif /* __HID_BPF_HELPERS_H */
diff --git a/tools/testing/selftests/hid/run-hid-tools-tests.sh b/tools/testing/selftests/hid/run-hid-tools-tests.sh
new file mode 100755
index 000000000000..af1682a53c27
--- /dev/null
+++ b/tools/testing/selftests/hid/run-hid-tools-tests.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# Runs tests for the HID subsystem
+
+KSELFTEST_SKIP_TEST=4
+
+if ! command -v python3 > /dev/null 2>&1; then
+	echo "hid-tools: [SKIP] python3 not installed"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+if ! python3 -c "import pytest" > /dev/null 2>&1; then
+	echo "hid: [SKIP] pytest module not installed"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+if ! python3 -c "import pytest_tap" > /dev/null 2>&1; then
+	echo "hid: [SKIP] pytest_tap module not installed"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+if ! python3 -c "import hidtools" > /dev/null 2>&1; then
+	echo "hid: [SKIP] hid-tools module not installed"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+TARGET=${TARGET:=.}
+
+echo TAP version 13
+python3 -u -m pytest $PYTEST_XDIST ./tests/$TARGET --tap-stream --udevd
diff --git a/tools/testing/selftests/hid/settings b/tools/testing/selftests/hid/settings
new file mode 100644
index 000000000000..b3cbfc521b10
--- /dev/null
+++ b/tools/testing/selftests/hid/settings
@@ -0,0 +1,3 @@
+# HID tests can be long, so give a little bit more time
+# to them
+timeout=200
diff --git a/tools/testing/selftests/hid/tests/__init__.py b/tools/testing/selftests/hid/tests/__init__.py
new file mode 100644
index 000000000000..c940e9275252
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/__init__.py
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+# Just to make sphinx-apidoc document this directory
diff --git a/tools/testing/selftests/hid/tests/base.py b/tools/testing/selftests/hid/tests/base.py
new file mode 100644
index 000000000000..5175cf235b2f
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/base.py
@@ -0,0 +1,432 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+
+import dataclasses
+import libevdev
+import os
+import pytest
+import shutil
+import subprocess
+import time
+
+import logging
+
+from .base_device import BaseDevice, EvdevMatch, SysfsFile
+from pathlib import Path
+from typing import Final, List, Tuple
+
+logger = logging.getLogger("hidtools.test.base")
+
+# application to matches
+application_matches: Final = {
+    # pyright: ignore
+    "Accelerometer": EvdevMatch(
+        req_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ]
+    ),
+    "Game Pad": EvdevMatch(  # in systemd, this is a lot more complex, but that will do
+        requires=[
+            libevdev.EV_ABS.ABS_X,
+            libevdev.EV_ABS.ABS_Y,
+            libevdev.EV_ABS.ABS_RX,
+            libevdev.EV_ABS.ABS_RY,
+            libevdev.EV_KEY.BTN_START,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Joystick": EvdevMatch(  # in systemd, this is a lot more complex, but that will do
+        requires=[
+            libevdev.EV_ABS.ABS_RX,
+            libevdev.EV_ABS.ABS_RY,
+            libevdev.EV_KEY.BTN_START,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Key": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.KEY_A,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+            libevdev.INPUT_PROP_DIRECT,
+            libevdev.INPUT_PROP_POINTER,
+        ],
+    ),
+    "Mouse": EvdevMatch(
+        requires=[
+            libevdev.EV_REL.REL_X,
+            libevdev.EV_REL.REL_Y,
+            libevdev.EV_KEY.BTN_LEFT,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Pad": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.BTN_0,
+        ],
+        excludes=[
+            libevdev.EV_KEY.BTN_TOOL_PEN,
+            libevdev.EV_KEY.BTN_TOUCH,
+            libevdev.EV_ABS.ABS_DISTANCE,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Pen": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.BTN_STYLUS,
+            libevdev.EV_ABS.ABS_X,
+            libevdev.EV_ABS.ABS_Y,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Stylus": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.BTN_STYLUS,
+            libevdev.EV_ABS.ABS_X,
+            libevdev.EV_ABS.ABS_Y,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Touch Pad": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.BTN_LEFT,
+            libevdev.EV_ABS.ABS_X,
+            libevdev.EV_ABS.ABS_Y,
+        ],
+        excludes=[libevdev.EV_KEY.BTN_TOOL_PEN, libevdev.EV_KEY.BTN_STYLUS],
+        req_properties=[
+            libevdev.INPUT_PROP_POINTER,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+    "Touch Screen": EvdevMatch(
+        requires=[
+            libevdev.EV_KEY.BTN_TOUCH,
+            libevdev.EV_ABS.ABS_X,
+            libevdev.EV_ABS.ABS_Y,
+        ],
+        excludes=[libevdev.EV_KEY.BTN_TOOL_PEN, libevdev.EV_KEY.BTN_STYLUS],
+        req_properties=[
+            libevdev.INPUT_PROP_DIRECT,
+        ],
+        excl_properties=[
+            libevdev.INPUT_PROP_ACCELEROMETER,
+        ],
+    ),
+}
+
+
+class UHIDTestDevice(BaseDevice):
+    def __init__(self, name, application, rdesc_str=None, rdesc=None, input_info=None):
+        super().__init__(name, application, rdesc_str, rdesc, input_info)
+        self.application_matches = application_matches
+        if name is None:
+            name = f"uhid test {self.__class__.__name__}"
+        if not name.startswith("uhid test "):
+            name = "uhid test " + self.name
+        self.name = name
+
+
+@dataclasses.dataclass
+class HidBpf:
+    object_name: str
+    has_rdesc_fixup: bool
+
+
+@dataclasses.dataclass
+class KernelModule:
+    driver_name: str
+    module_name: str
+
+
+class BaseTestCase:
+    class TestUhid(object):
+        syn_event = libevdev.InputEvent(libevdev.EV_SYN.SYN_REPORT)  # type: ignore
+        key_event = libevdev.InputEvent(libevdev.EV_KEY)  # type: ignore
+        abs_event = libevdev.InputEvent(libevdev.EV_ABS)  # type: ignore
+        rel_event = libevdev.InputEvent(libevdev.EV_REL)  # type: ignore
+        msc_event = libevdev.InputEvent(libevdev.EV_MSC.MSC_SCAN)  # type: ignore
+
+        # List of kernel modules to load before starting the test
+        # if any module is not available (not compiled), the test will skip.
+        # Each element is a KernelModule object, for example
+        # KernelModule("playstation", "hid-playstation")
+        kernel_modules: List[KernelModule] = []
+
+        # List of in kernel HID-BPF object files to load
+        # before starting the test
+        # Any existing pre-loaded HID-BPF module will be removed
+        # before the ones in this list will be manually loaded.
+        # Each Element is a HidBpf object, for example
+        # 'HidBpf("xppen-ArtistPro16Gen2.bpf.o", True)'
+        # If 'has_rdesc_fixup' is True, the test needs to wait
+        # for one unbind and rebind before it can be sure the kernel is
+        # ready
+        hid_bpfs: List[HidBpf] = []
+
+        def assertInputEventsIn(self, expected_events, effective_events):
+            effective_events = effective_events.copy()
+            for ev in expected_events:
+                assert ev in effective_events
+                effective_events.remove(ev)
+            return effective_events
+
+        def assertInputEvents(self, expected_events, effective_events):
+            remaining = self.assertInputEventsIn(expected_events, effective_events)
+            assert remaining == []
+
+        @classmethod
+        def debug_reports(cls, reports, uhdev=None, events=None):
+            data = [" ".join([f"{v:02x}" for v in r]) for r in reports]
+
+            if uhdev is not None:
+                human_data = [
+                    uhdev.parsed_rdesc.format_report(r, split_lines=True)
+                    for r in reports
+                ]
+                try:
+                    human_data = [
+                        f'\n\t       {" " * h.index("/")}'.join(h.split("\n"))
+                        for h in human_data
+                    ]
+                except ValueError:
+                    # '/' not found: not a numbered report
+                    human_data = ["\n\t      ".join(h.split("\n")) for h in human_data]
+                data = [f"{d}\n\t ====> {h}" for d, h in zip(data, human_data)]
+
+            reports = data
+
+            if len(reports) == 1:
+                print("sending 1 report:")
+            else:
+                print(f"sending {len(reports)} reports:")
+            for report in reports:
+                print("\t", report)
+
+            if events is not None:
+                print("events received:", events)
+
+        def create_device(self):
+            raise Exception("please reimplement me in subclasses")
+
+        def _load_kernel_module(self, kernel_driver, kernel_module):
+            sysfs_path = Path("/sys/bus/hid/drivers")
+            if kernel_driver is not None:
+                sysfs_path /= kernel_driver
+            else:
+                # special case for when testing all available modules:
+                # we don't know beforehand the name of the module from modinfo
+                sysfs_path = Path("/sys/module") / kernel_module.replace("-", "_")
+            if not sysfs_path.exists():
+                ret = subprocess.run(["/usr/sbin/modprobe", kernel_module])
+                if ret.returncode != 0:
+                    pytest.skip(
+                        f"module {kernel_module} could not be loaded, skipping the test"
+                    )
+
+        @pytest.fixture()
+        def load_kernel_module(self):
+            for k in self.kernel_modules:
+                self._load_kernel_module(k.driver_name, k.module_name)
+            yield
+
+        def load_hid_bpfs(self):
+            # this function will only work when run in the kernel tree
+            script_dir = Path(os.path.dirname(os.path.realpath(__file__)))
+            root_dir = (script_dir / "../../../../..").resolve()
+            bpf_dir = root_dir / "drivers/hid/bpf/progs"
+
+            if not bpf_dir.exists():
+                pytest.skip("looks like we are not in the kernel tree, skipping")
+
+            udev_hid_bpf = shutil.which("udev-hid-bpf")
+            if not udev_hid_bpf:
+                pytest.skip("udev-hid-bpf not found in $PATH, skipping")
+
+            wait = any(b.has_rdesc_fixup for b in self.hid_bpfs)
+
+            for hid_bpf in self.hid_bpfs:
+                # We need to start `udev-hid-bpf` in the background
+                # and dispatch uhid events in case the kernel needs
+                # to fetch features on the device
+                process = subprocess.Popen(
+                    [
+                        "udev-hid-bpf",
+                        "--verbose",
+                        "add",
+                        str(self.uhdev.sys_path),
+                        str(bpf_dir / hid_bpf.object_name),
+                    ],
+                )
+                while process.poll() is None:
+                    self.uhdev.dispatch(1)
+
+                if process.returncode != 0:
+                    pytest.fail(
+                        f"Couldn't insert hid-bpf program '{hid_bpf}', marking the test as failed"
+                    )
+
+            if wait:
+                # the HID-BPF program exports a rdesc fixup, so it needs to be
+                # unbound by the kernel and then rebound.
+                # Ensure we get the bound event exactly 2 times (one for the normal
+                # uhid loading, and then the reload from HID-BPF)
+                now = time.time()
+                while self.uhdev.kernel_ready_count < 2 and time.time() - now < 2:
+                    self.uhdev.dispatch(1)
+
+                if self.uhdev.kernel_ready_count < 2:
+                    pytest.fail(
+                        f"Couldn't insert hid-bpf programs, marking the test as failed"
+                    )
+
+        def unload_hid_bpfs(self):
+            ret = subprocess.run(
+                ["udev-hid-bpf", "--verbose", "remove", str(self.uhdev.sys_path)],
+            )
+            if ret.returncode != 0:
+                pytest.fail(
+                    f"Couldn't unload hid-bpf programs, marking the test as failed"
+                )
+
+        @pytest.fixture()
+        def new_uhdev(self, load_kernel_module):
+            return self.create_device()
+
+        def assertName(self, uhdev):
+            evdev = uhdev.get_evdev()
+            assert uhdev.name in evdev.name
+
+        @pytest.fixture(autouse=True)
+        def context(self, new_uhdev, request):
+            try:
+                with HIDTestUdevRule.instance():
+                    with new_uhdev as self.uhdev:
+                        for skip_cond in request.node.iter_markers("skip_if_uhdev"):
+                            test, message, *rest = skip_cond.args
+
+                            if test(self.uhdev):
+                                pytest.skip(message)
+
+                        self.uhdev.create_kernel_device()
+                        now = time.time()
+                        while not self.uhdev.is_ready() and time.time() - now < 5:
+                            self.uhdev.dispatch(1)
+
+                        if self.hid_bpfs:
+                            self.load_hid_bpfs()
+
+                        if self.uhdev.get_evdev() is None:
+                            logger.warning(
+                                f"available list of input nodes: (default application is '{self.uhdev.application}')"
+                            )
+                            logger.warning(self.uhdev.input_nodes)
+                        yield
+                        if self.hid_bpfs:
+                            self.unload_hid_bpfs()
+                        self.uhdev = None
+            except PermissionError:
+                pytest.skip("Insufficient permissions, run me as root")
+
+        @pytest.fixture(autouse=True)
+        def check_taint(self):
+            # we are abusing SysfsFile here, it's in /proc, but meh
+            taint_file = SysfsFile("/proc/sys/kernel/tainted")
+            taint = taint_file.int_value
+
+            yield
+
+            assert taint_file.int_value == taint
+
+        def test_creation(self):
+            """Make sure the device gets processed by the kernel and creates
+            the expected application input node.
+
+            If this fail, there is something wrong in the device report
+            descriptors."""
+            uhdev = self.uhdev
+            assert uhdev is not None
+            assert uhdev.get_evdev() is not None
+            self.assertName(uhdev)
+            assert len(uhdev.next_sync_events()) == 0
+            assert uhdev.get_evdev() is not None
+
+
+class HIDTestUdevRule(object):
+    _instance = None
+    """
+    A context-manager compatible class that sets up our udev rules file and
+    deletes it on context exit.
+
+    This class is tailored to our test setup: it only sets up the udev rule
+    on the **second** context and it cleans it up again on the last context
+    removed. This matches the expected pytest setup: we enter a context for
+    the session once, then once for each test (the first of which will
+    trigger the udev rule) and once the last test exited and the session
+    exited, we clean up after ourselves.
+    """
+
+    def __init__(self):
+        self.refs = 0
+        self.rulesfile = None
+
+    def __enter__(self):
+        self.refs += 1
+        if self.refs == 2 and self.rulesfile is None:
+            self.create_udev_rule()
+            self.reload_udev_rules()
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        self.refs -= 1
+        if self.refs == 0 and self.rulesfile:
+            os.remove(self.rulesfile.name)
+            self.reload_udev_rules()
+
+    def reload_udev_rules(self):
+        subprocess.run("udevadm control --reload-rules".split())
+        subprocess.run("systemd-hwdb update".split())
+
+    def create_udev_rule(self):
+        import tempfile
+
+        os.makedirs("/run/udev/rules.d", exist_ok=True)
+        with tempfile.NamedTemporaryFile(
+            prefix="91-uhid-test-device-REMOVEME-",
+            suffix=".rules",
+            mode="w+",
+            dir="/run/udev/rules.d",
+            delete=False,
+        ) as f:
+            f.write(
+                """
+KERNELS=="*input*", ATTRS{name}=="*uhid test *", ENV{LIBINPUT_IGNORE_DEVICE}="1"
+KERNELS=="*hid*", ENV{HID_NAME}=="*uhid test *", ENV{HID_BPF_IGNORE_DEVICE}="1"
+KERNELS=="*input*", ATTRS{name}=="*uhid test * System Multi Axis", ENV{ID_INPUT_TOUCHSCREEN}="", ENV{ID_INPUT_SYSTEM_MULTIAXIS}="1"
+"""
+            )
+            self.rulesfile = f
+
+    @classmethod
+    def instance(cls):
+        if not cls._instance:
+            cls._instance = HIDTestUdevRule()
+        return cls._instance
diff --git a/tools/testing/selftests/hid/tests/base_device.py b/tools/testing/selftests/hid/tests/base_device.py
new file mode 100644
index 000000000000..59465c58d94d
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/base_device.py
@@ -0,0 +1,448 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import dataclasses
+import fcntl
+import functools
+import libevdev
+import os
+import threading
+
+try:
+    import pyudev
+except ImportError:
+    raise ImportError("UHID is not supported due to missing pyudev dependency")
+
+import logging
+
+import hidtools.hid as hid
+from hidtools.uhid import UHIDDevice
+from hidtools.util import BusType
+
+from pathlib import Path
+from typing import Any, ClassVar, Dict, List, Optional, Tuple, Type, Union
+
+logger = logging.getLogger("hidtools.device.base_device")
+
+
+class SysfsFile(object):
+    def __init__(self, path):
+        self.path = path
+
+    def __set_value(self, value):
+        with open(self.path, "w") as f:
+            return f.write(f"{value}\n")
+
+    def __get_value(self):
+        with open(self.path) as f:
+            return f.read().strip()
+
+    @property
+    def int_value(self) -> int:
+        return int(self.__get_value())
+
+    @int_value.setter
+    def int_value(self, v: int) -> None:
+        self.__set_value(v)
+
+    @property
+    def str_value(self) -> str:
+        return self.__get_value()
+
+    @str_value.setter
+    def str_value(self, v: str) -> None:
+        self.__set_value(v)
+
+
+class LED(object):
+    def __init__(self, sys_path):
+        self.max_brightness = SysfsFile(sys_path / "max_brightness").int_value
+        self.__brightness = SysfsFile(sys_path / "brightness")
+
+    @property
+    def brightness(self) -> int:
+        return self.__brightness.int_value
+
+    @brightness.setter
+    def brightness(self, value: int) -> None:
+        self.__brightness.int_value = value
+
+
+class PowerSupply(object):
+    """Represents Linux power_supply_class sysfs nodes."""
+
+    def __init__(self, sys_path):
+        self._capacity = SysfsFile(sys_path / "capacity")
+        self._status = SysfsFile(sys_path / "status")
+        self._type = SysfsFile(sys_path / "type")
+
+    @property
+    def capacity(self) -> int:
+        return self._capacity.int_value
+
+    @property
+    def status(self) -> str:
+        return self._status.str_value
+
+    @property
+    def type(self) -> str:
+        return self._type.str_value
+
+
+@dataclasses.dataclass
+class HidReadiness:
+    is_ready: bool = False
+    count: int = 0
+
+
+class HIDIsReady(object):
+    """
+    Companion class that binds to a kernel mechanism
+    and that allows to know when a uhid device is ready or not.
+
+    See :meth:`is_ready` for details.
+    """
+
+    def __init__(self: "HIDIsReady", uhid: UHIDDevice) -> None:
+        self.uhid = uhid
+
+    def is_ready(self: "HIDIsReady") -> HidReadiness:
+        """
+        Overwrite in subclasses: should return True or False whether
+        the attached uhid device is ready or not.
+        """
+        return HidReadiness()
+
+
+class UdevHIDIsReady(HIDIsReady):
+    _pyudev_context: ClassVar[Optional[pyudev.Context]] = None
+    _pyudev_monitor: ClassVar[Optional[pyudev.Monitor]] = None
+    _uhid_devices: ClassVar[Dict[int, HidReadiness]] = {}
+
+    def __init__(self: "UdevHIDIsReady", uhid: UHIDDevice) -> None:
+        super().__init__(uhid)
+        self._init_pyudev()
+
+    @classmethod
+    def _init_pyudev(cls: Type["UdevHIDIsReady"]) -> None:
+        if cls._pyudev_context is None:
+            cls._pyudev_context = pyudev.Context()
+            cls._pyudev_monitor = pyudev.Monitor.from_netlink(cls._pyudev_context)
+            cls._pyudev_monitor.filter_by("hid")
+            cls._pyudev_monitor.start()
+
+            UHIDDevice._append_fd_to_poll(
+                cls._pyudev_monitor.fileno(), cls._cls_udev_event_callback
+            )
+
+    @classmethod
+    def _cls_udev_event_callback(cls: Type["UdevHIDIsReady"]) -> None:
+        if cls._pyudev_monitor is None:
+            return
+        event: pyudev.Device
+        for event in iter(functools.partial(cls._pyudev_monitor.poll, 0.02), None):
+            if event.action not in ["bind", "remove", "unbind"]:
+                return
+
+            logger.debug(f"udev event: {event.action} -> {event}")
+
+            id = int(event.sys_path.strip().split(".")[-1], 16)
+
+            readiness = cls._uhid_devices.setdefault(id, HidReadiness())
+
+            ready = event.action == "bind"
+            if not readiness.is_ready and ready:
+                readiness.count += 1
+
+            readiness.is_ready = ready
+
+    def is_ready(self: "UdevHIDIsReady") -> HidReadiness:
+        try:
+            return self._uhid_devices[self.uhid.hid_id]
+        except KeyError:
+            return HidReadiness()
+
+
+class EvdevMatch(object):
+    def __init__(
+        self: "EvdevMatch",
+        *,
+        requires: List[Any] = [],
+        excludes: List[Any] = [],
+        req_properties: List[Any] = [],
+        excl_properties: List[Any] = [],
+    ) -> None:
+        self.requires = requires
+        self.excludes = excludes
+        self.req_properties = req_properties
+        self.excl_properties = excl_properties
+
+    def is_a_match(self: "EvdevMatch", evdev: libevdev.Device) -> bool:
+        for m in self.requires:
+            if not evdev.has(m):
+                return False
+        for m in self.excludes:
+            if evdev.has(m):
+                return False
+        for p in self.req_properties:
+            if not evdev.has_property(p):
+                return False
+        for p in self.excl_properties:
+            if evdev.has_property(p):
+                return False
+        return True
+
+
+class EvdevDevice(object):
+    """
+    Represents an Evdev node and its properties.
+    This is a stub for the libevdev devices, as they are relying on
+    uevent to get the data, saving us some ioctls to fetch the names
+    and properties.
+    """
+
+    def __init__(self: "EvdevDevice", sysfs: Path) -> None:
+        self.sysfs = sysfs
+        self.event_node: Any = None
+        self.libevdev: Optional[libevdev.Device] = None
+
+        self.uevents = {}
+        # all of the interesting properties are stored in the input uevent, so in the parent
+        # so convert the uevent file of the parent input node into a dict
+        with open(sysfs.parent / "uevent") as f:
+            for line in f.readlines():
+                key, value = line.strip().split("=")
+                self.uevents[key] = value.strip('"')
+
+        # we open all evdev nodes in order to not miss any event
+        self.open()
+
+    @property
+    def name(self: "EvdevDevice") -> str:
+        assert "NAME" in self.uevents
+
+        return self.uevents["NAME"]
+
+    @property
+    def evdev(self: "EvdevDevice") -> Path:
+        return Path("/dev/input") / self.sysfs.name
+
+    def matches_application(
+        self: "EvdevDevice", application: str, matches: Dict[str, EvdevMatch]
+    ) -> bool:
+        if self.libevdev is None:
+            return False
+
+        if application in matches:
+            return matches[application].is_a_match(self.libevdev)
+
+        logger.error(
+            f"application '{application}' is unknown, please update/fix hid-tools"
+        )
+        assert False  # hid-tools likely needs an update
+
+    def open(self: "EvdevDevice") -> libevdev.Device:
+        self.event_node = open(self.evdev, "rb")
+        self.libevdev = libevdev.Device(self.event_node)
+
+        assert self.libevdev.fd is not None
+
+        fd = self.libevdev.fd.fileno()
+        flag = fcntl.fcntl(fd, fcntl.F_GETFD)
+        fcntl.fcntl(fd, fcntl.F_SETFL, flag | os.O_NONBLOCK)
+
+        return self.libevdev
+
+    def close(self: "EvdevDevice") -> None:
+        if self.libevdev is not None and self.libevdev.fd is not None:
+            self.libevdev.fd.close()
+            self.libevdev = None
+        if self.event_node is not None:
+            self.event_node.close()
+            self.event_node = None
+
+
+class BaseDevice(UHIDDevice):
+    # default _application_matches that matches nothing. This needs
+    # to be set in the subclasses to have get_evdev() working
+    _application_matches: Dict[str, EvdevMatch] = {}
+
+    def __init__(
+        self,
+        name,
+        application,
+        rdesc_str: Optional[str] = None,
+        rdesc: Optional[Union[hid.ReportDescriptor, str, bytes]] = None,
+        input_info=None,
+    ) -> None:
+        self._kernel_is_ready: HIDIsReady = UdevHIDIsReady(self)
+        if rdesc_str is None and rdesc is None:
+            raise Exception("Please provide at least a rdesc or rdesc_str")
+        super().__init__()
+        if name is None:
+            name = f"uhid gamepad test {self.__class__.__name__}"
+        if input_info is None:
+            input_info = (BusType.USB, 1, 2)
+        self.name = name
+        self.info = input_info
+        self.default_reportID = None
+        self.opened = False
+        self.started = False
+        self.application = application
+        self._input_nodes: Optional[list[EvdevDevice]] = None
+        if rdesc is None:
+            assert rdesc_str is not None
+            self.rdesc = hid.ReportDescriptor.from_human_descr(rdesc_str)  # type: ignore
+        else:
+            self.rdesc = rdesc  # type: ignore
+
+    @property
+    def power_supply_class(self: "BaseDevice") -> Optional[PowerSupply]:
+        ps = self.walk_sysfs("power_supply", "power_supply/*")
+        if ps is None or len(ps) < 1:
+            return None
+
+        return PowerSupply(ps[0])
+
+    @property
+    def led_classes(self: "BaseDevice") -> List[LED]:
+        leds = self.walk_sysfs("led", "**/max_brightness")
+        if leds is None:
+            return []
+
+        return [LED(led.parent) for led in leds]
+
+    @property
+    def kernel_is_ready(self: "BaseDevice") -> bool:
+        return self._kernel_is_ready.is_ready().is_ready and self.started
+
+    @property
+    def kernel_ready_count(self: "BaseDevice") -> int:
+        return self._kernel_is_ready.is_ready().count
+
+    @property
+    def input_nodes(self: "BaseDevice") -> List[EvdevDevice]:
+        if self._input_nodes is not None:
+            return self._input_nodes
+
+        if not self.kernel_is_ready or not self.started:
+            return []
+
+        # Starting with kernel v6.16, an event is emitted when
+        # userspace opens a kernel device, and for some devices
+        # this translates into a SET_REPORT.
+        # Because EvdevDevice(path) opens every single evdev node
+        # we need to have a separate thread to process the incoming
+        # SET_REPORT or we end up having to wait for the kernel
+        # timeout of 5 seconds.
+        done = False
+
+        def dispatch():
+            while not done:
+                self.dispatch(1)
+
+        t = threading.Thread(target=dispatch)
+        t.start()
+
+        self._input_nodes = [
+            EvdevDevice(path)
+            for path in self.walk_sysfs("input", "input/input*/event*")
+        ]
+        done = True
+        t.join()
+        return self._input_nodes
+
+    def match_evdev_rule(self, application, evdev):
+        """Replace this in subclasses if the device has multiple reports
+        of the same type and we need to filter based on the actual evdev
+        node.
+
+        returning True will append the corresponding report to
+        `self.input_nodes[type]`
+        returning False  will ignore this report / type combination
+        for the device.
+        """
+        return True
+
+    def open(self):
+        self.opened = True
+
+    def _close_all_opened_evdev(self):
+        if self._input_nodes is not None:
+            for e in self._input_nodes:
+                e.close()
+
+    def __del__(self):
+        self._close_all_opened_evdev()
+
+    def close(self):
+        self.opened = False
+
+    def start(self, flags):
+        self.started = True
+
+    def stop(self):
+        self.started = False
+        self._close_all_opened_evdev()
+
+    def next_sync_events(self, application=None):
+        evdev = self.get_evdev(application)
+        if evdev is not None:
+            return list(evdev.events())
+        return []
+
+    @property
+    def application_matches(self: "BaseDevice") -> Dict[str, EvdevMatch]:
+        return self._application_matches
+
+    @application_matches.setter
+    def application_matches(self: "BaseDevice", data: Dict[str, EvdevMatch]) -> None:
+        self._application_matches = data
+
+    def get_evdev(self, application=None):
+        if application is None:
+            application = self.application
+
+        if len(self.input_nodes) == 0:
+            return None
+
+        assert self._input_nodes is not None
+
+        if len(self._input_nodes) == 1:
+            evdev = self._input_nodes[0]
+            if self.match_evdev_rule(application, evdev.libevdev):
+                return evdev.libevdev
+        else:
+            for _evdev in self._input_nodes:
+                if _evdev.matches_application(application, self.application_matches):
+                    if self.match_evdev_rule(application, _evdev.libevdev):
+                        return _evdev.libevdev
+
+    def is_ready(self):
+        """Returns whether a UHID device is ready. Can be overwritten in
+        subclasses to add extra conditions on when to consider a UHID
+        device ready. This can be:
+
+        - we need to wait on different types of input devices to be ready
+          (Touch Screen and Pen for example)
+        - we need to have at least 4 LEDs present
+          (len(self.uhdev.leds_classes) == 4)
+        - or any other combinations"""
+        return self.kernel_is_ready
diff --git a/tools/testing/selftests/hid/tests/base_gamepad.py b/tools/testing/selftests/hid/tests/base_gamepad.py
new file mode 100644
index 000000000000..ec74d75767a2
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/base_gamepad.py
@@ -0,0 +1,238 @@
+# SPDX-License-Identifier: GPL-2.0
+import libevdev
+
+from .base_device import BaseDevice
+from hidtools.util import BusType
+
+
+class InvalidHIDCommunication(Exception):
+    pass
+
+
+class GamepadData(object):
+    pass
+
+
+class AxisMapping(object):
+    """Represents a mapping between a HID type
+    and an evdev event"""
+
+    def __init__(self, hid, evdev=None):
+        self.hid = hid.lower()
+
+        if evdev is None:
+            evdev = f"ABS_{hid.upper()}"
+
+        self.evdev = libevdev.evbit("EV_ABS", evdev)
+
+
+class BaseGamepad(BaseDevice):
+    buttons_map = {
+        1: "BTN_SOUTH",
+        2: "BTN_EAST",
+        3: "BTN_C",
+        4: "BTN_NORTH",
+        5: "BTN_WEST",
+        6: "BTN_Z",
+        7: "BTN_TL",
+        8: "BTN_TR",
+        9: "BTN_TL2",
+        10: "BTN_TR2",
+        11: "BTN_SELECT",
+        12: "BTN_START",
+        13: "BTN_MODE",
+        14: "BTN_THUMBL",
+        15: "BTN_THUMBR",
+    }
+
+    axes_map = {
+        "left_stick": {
+            "x": AxisMapping("x"),
+            "y": AxisMapping("y"),
+        },
+        "right_stick": {
+            "x": AxisMapping("z"),
+            "y": AxisMapping("Rz"),
+        },
+    }
+
+    def __init__(self, rdesc, application="Game Pad", name=None, input_info=None):
+        assert rdesc is not None
+        super().__init__(name, application, input_info=input_info, rdesc=rdesc)
+        self.buttons = (1, 2, 3)
+        self._buttons = {}
+        self.left = (127, 127)
+        self.right = (127, 127)
+        self.hat_switch = 15
+        assert self.parsed_rdesc is not None
+
+        self.fields = []
+        for r in self.parsed_rdesc.input_reports.values():
+            if r.application_name == self.application:
+                self.fields.extend([f.usage_name for f in r])
+
+    def store_axes(self, which, gamepad, data):
+        amap = self.axes_map[which]
+        x, y = data
+        setattr(gamepad, amap["x"].hid, x)
+        setattr(gamepad, amap["y"].hid, y)
+
+    def create_report(
+        self,
+        *,
+        left=(None, None),
+        right=(None, None),
+        hat_switch=None,
+        buttons=None,
+        reportID=None,
+        application="Game Pad",
+    ):
+        """
+        Return an input report for this device.
+
+        :param left: a tuple of absolute (x, y) value of the left joypad
+            where ``None`` is "leave unchanged"
+        :param right: a tuple of absolute (x, y) value of the right joypad
+            where ``None`` is "leave unchanged"
+        :param hat_switch: an absolute angular value of the hat switch
+            (expressed in 1/8 of circle, 0 being North, 2 East)
+            where ``None`` is "leave unchanged"
+        :param buttons: a dict of index/bool for the button states,
+            where ``None`` is "leave unchanged"
+        :param reportID: the numeric report ID for this report, if needed
+        :param application: the application used to report the values
+        """
+        if buttons is not None:
+            for i, b in buttons.items():
+                if i not in self.buttons:
+                    raise InvalidHIDCommunication(
+                        f"button {i} is not part of this {self.application}"
+                    )
+                if b is not None:
+                    self._buttons[i] = b
+
+        def replace_none_in_tuple(item, default):
+            if item is None:
+                item = (None, None)
+
+            if None in item:
+                if item[0] is None:
+                    item = (default[0], item[1])
+                if item[1] is None:
+                    item = (item[0], default[1])
+
+            return item
+
+        right = replace_none_in_tuple(right, self.right)
+        self.right = right
+        left = replace_none_in_tuple(left, self.left)
+        self.left = left
+
+        if hat_switch is None:
+            hat_switch = self.hat_switch
+        else:
+            self.hat_switch = hat_switch
+
+        reportID = reportID or self.default_reportID
+
+        gamepad = GamepadData()
+        for i, b in self._buttons.items():
+            gamepad.__setattr__(f"b{i}", int(b) if b is not None else 0)
+
+        self.store_axes("left_stick", gamepad, left)
+        self.store_axes("right_stick", gamepad, right)
+        gamepad.hatswitch = hat_switch  # type: ignore  ### gamepad is by default empty
+        return super().create_report(
+            gamepad, reportID=reportID, application=application
+        )
+
+    def event(
+        self, *, left=(None, None), right=(None, None), hat_switch=None, buttons=None
+    ):
+        """
+        Send an input event on the default report ID.
+
+        :param left: a tuple of absolute (x, y) value of the left joypad
+            where ``None`` is "leave unchanged"
+        :param right: a tuple of absolute (x, y) value of the right joypad
+            where ``None`` is "leave unchanged"
+        :param hat_switch: an absolute angular value of the hat switch
+            where ``None`` is "leave unchanged"
+        :param buttons: a dict of index/bool for the button states,
+            where ``None`` is "leave unchanged"
+        """
+        r = self.create_report(
+            left=left, right=right, hat_switch=hat_switch, buttons=buttons
+        )
+        self.call_input_event(r)
+        return [r]
+
+
+class JoystickGamepad(BaseGamepad):
+    buttons_map = {
+        1: "BTN_TRIGGER",
+        2: "BTN_THUMB",
+        3: "BTN_THUMB2",
+        4: "BTN_TOP",
+        5: "BTN_TOP2",
+        6: "BTN_PINKIE",
+        7: "BTN_BASE",
+        8: "BTN_BASE2",
+        9: "BTN_BASE3",
+        10: "BTN_BASE4",
+        11: "BTN_BASE5",
+        12: "BTN_BASE6",
+        13: "BTN_DEAD",
+    }
+
+    axes_map = {
+        "left_stick": {
+            "x": AxisMapping("x"),
+            "y": AxisMapping("y"),
+        },
+        "right_stick": {
+            "x": AxisMapping("rudder"),
+            "y": AxisMapping("throttle"),
+        },
+    }
+
+    def __init__(self, rdesc, application="Joystick", name=None, input_info=None):
+        super().__init__(rdesc, application, name, input_info)
+
+    def create_report(
+        self,
+        *,
+        left=(None, None),
+        right=(None, None),
+        hat_switch=None,
+        buttons=None,
+        reportID=None,
+        application=None,
+    ):
+        """
+        Return an input report for this device.
+
+        :param left: a tuple of absolute (x, y) value of the left joypad
+            where ``None`` is "leave unchanged"
+        :param right: a tuple of absolute (x, y) value of the right joypad
+            where ``None`` is "leave unchanged"
+        :param hat_switch: an absolute angular value of the hat switch
+            where ``None`` is "leave unchanged"
+        :param buttons: a dict of index/bool for the button states,
+            where ``None`` is "leave unchanged"
+        :param reportID: the numeric report ID for this report, if needed
+        :param application: the application for this report, if needed
+        """
+        if application is None:
+            application = "Joystick"
+        return super().create_report(
+            left=left,
+            right=right,
+            hat_switch=hat_switch,
+            buttons=buttons,
+            reportID=reportID,
+            application=application,
+        )
+
+    def store_right_joystick(self, gamepad, data):
+        gamepad.rudder, gamepad.throttle = data
diff --git a/tools/testing/selftests/hid/tests/conftest.py b/tools/testing/selftests/hid/tests/conftest.py
new file mode 100644
index 000000000000..1361ec981db6
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/conftest.py
@@ -0,0 +1,81 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+
+import platform
+import pytest
+import re
+import resource
+import subprocess
+from .base import HIDTestUdevRule
+from pathlib import Path
+
+
+# See the comment in HIDTestUdevRule, this doesn't set up but it will clean
+# up once the last test exited.
+@pytest.fixture(autouse=True, scope="session")
+def udev_rules_session_setup():
+    with HIDTestUdevRule.instance():
+        yield
+
+
+@pytest.fixture(autouse=True, scope="session")
+def setup_rlimit():
+    resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
+
+
+@pytest.fixture(autouse=True, scope="session")
+def start_udevd(pytestconfig):
+    if pytestconfig.getoption("udevd"):
+        import subprocess
+
+        with subprocess.Popen("/usr/lib/systemd/systemd-udevd") as proc:
+            yield
+            proc.kill()
+    else:
+        yield
+
+
+def pytest_configure(config):
+    config.addinivalue_line(
+        "markers",
+        "skip_if_uhdev(condition, message): mark test to skip if the condition on the uhdev device is met",
+    )
+
+
+# Generate the list of modules and modaliases
+# for the tests that need to be parametrized with those
+def pytest_generate_tests(metafunc):
+    if "usbVidPid" in metafunc.fixturenames:
+        modules = (
+            Path("/lib/modules/")
+            / platform.uname().release
+            / "kernel"
+            / "drivers"
+            / "hid"
+        )
+
+        modalias_re = re.compile(r"alias:\s+hid:b0003g.*v([0-9a-fA-F]+)p([0-9a-fA-F]+)")
+
+        params = []
+        ids = []
+        for module in modules.glob("*.ko"):
+            p = subprocess.run(
+                ["modinfo", module], capture_output=True, check=True, encoding="utf-8"
+            )
+            for line in p.stdout.split("\n"):
+                m = modalias_re.match(line)
+                if m is not None:
+                    vid, pid = m.groups()
+                    vid = int(vid, 16)
+                    pid = int(pid, 16)
+                    params.append([module.name.replace(".ko", ""), vid, pid])
+                    ids.append(f"{module.name} {vid:04x}:{pid:04x}")
+        metafunc.parametrize("usbVidPid", params, ids=ids)
+
+
+def pytest_addoption(parser):
+    parser.addoption("--udevd", action="store_true", default=False)
diff --git a/tools/testing/selftests/hid/tests/descriptors_wacom.py b/tools/testing/selftests/hid/tests/descriptors_wacom.py
new file mode 100644
index 000000000000..91c16e005c12
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/descriptors_wacom.py
@@ -0,0 +1,1360 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# fmt: off
+wacom_pth660_v145 = [
+    0x05, 0x01,                     # . Usage Page (Desktop),
+    0x09, 0x02,                     # . Usage (Mouse),
+    0xA1, 0x01,                     # . Collection (Application),
+    0x85, 0x01,                     # .     Report ID (1),
+    0x09, 0x01,                     # .     Usage (Pointer),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x05, 0x09,                     # .         Usage Page (Button),
+    0x19, 0x01,                     # .         Usage Minimum (01h),
+    0x29, 0x03,                     # .         Usage Maximum (03h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x03,                     # .         Report Count (3),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x05,                     # .         Report Count (5),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x05, 0x01,                     # .         Usage Page (Desktop),
+    0x09, 0x30,                     # .         Usage (X),
+    0x09, 0x31,                     # .         Usage (Y),
+    0x15, 0x81,                     # .         Logical Minimum (-127),
+    0x25, 0x7F,                     # .         Logical Maximum (127),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x06,                     # .         Input (Variable, Relative),
+    0xC0,                           # .     End Collection,
+    0xC0,                           # . End Collection,
+    0x06, 0x0D, 0xFF,               # . Usage Page (FF0Dh),
+    0x09, 0x01,                     # . Usage (01h),
+    0xA1, 0x01,                     # . Collection (Application),
+    0x85, 0x10,                     # .     Report ID (16),
+    0x09, 0x20,                     # .     Usage (20h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x09, 0x42,                     # .         Usage (42h),
+    0x09, 0x44,                     # .         Usage (44h),
+    0x09, 0x5A,                     # .         Usage (5Ah),
+    0x09, 0x45,                     # .         Usage (45h),
+    0x09, 0x3C,                     # .         Usage (3Ch),
+    0x09, 0x32,                     # .         Usage (32h),
+    0x09, 0x36,                     # .         Usage (36h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x07,                     # .         Report Count (7),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x30, 0x01,               # .         Usage (0130h),
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x47, 0x80, 0x57, 0x00, 0x00,   # .         Physical Maximum (22400),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x27, 0x00, 0xAF, 0x00, 0x00,   # .         Logical Maximum (44800),
+    0x75, 0x18,                     # .         Report Size (24),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x31, 0x01,               # .         Usage (0131h),
+    0x47, 0xD0, 0x39, 0x00, 0x00,   # .         Physical Maximum (14800),
+    0x27, 0xA0, 0x73, 0x00, 0x00,   # .         Logical Maximum (29600),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x30,                     # .         Usage (30h),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x65, 0x00,                     # .         Unit,
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x1F,               # .         Logical Maximum (8191),         # !!! Errata: Missing Physical Max = 0
+    0x75, 0x10,                     # .         Report Size (16),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x3D,                     # .         Usage (3Dh),
+    0x09, 0x3E,                     # .         Usage (3Eh),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0xC0,                     # .         Physical Minimum (-64),
+    0x45, 0x3F,                     # .         Physical Maximum (63),
+    0x15, 0xC0,                     # .         Logical Minimum (-64),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x41,                     # .         Usage (41h),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x36, 0x4C, 0xFF,               # .         Physical Minimum (-180),
+    0x46, 0xB3, 0x00,               # .         Physical Maximum (179),
+    0x16, 0x7C, 0xFC,               # .         Logical Minimum (-900),
+    0x26, 0x83, 0x03,               # .         Logical Maximum (899),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x0A,                     # .         Input (Variable, Wrap),
+    0x0A, 0x03, 0x0D,               # .         Usage (0D03h),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x07,               # .         Logical Maximum (2047),         # !!! Errata: Missing Physical Min/Max = 0
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x32, 0x01,               # .         Usage (0132h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x5B,                     # .         Usage (5Bh),
+    0x09, 0x5C,                     # .         Usage (5Ch),
+    0x17, 0x00, 0x00, 0x00, 0x80,   # .         Logical Minimum (-2147483648),
+    0x27, 0xFF, 0xFF, 0xFF, 0x7F,   # .         Logical Maximum (2147483647),
+    0x75, 0x20,                     # .         Report Size (32),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x77,                     # .         Usage (77h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x0F,               # .         Logical Maximum (4095),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x11,                     # .     Report ID (17),
+    0x09, 0x39,                     # .     Usage (39h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x1A, 0x10, 0x09,               # .         Usage Minimum (0910h),
+    0x2A, 0x17, 0x09,               # .         Usage Maximum (0917h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x08,                     # .         Report Count (8),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x1A, 0x40, 0x09,               # .         Usage Minimum (0940h),
+    0x2A, 0x47, 0x09,               # .         Usage Maximum (0947h),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x95, 0x09,               # .         Usage (0995h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x07,                     # .         Report Count (7),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x38, 0x01,               # .         Usage (0138h),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x46, 0x67, 0x01,               # .         Physical Maximum (359),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x47,                     # .         Logical Maximum (71),
+    0x75, 0x07,                     # .         Report Size (7),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x0A,                     # .         Input (Variable, Wrap),
+    0x0A, 0x39, 0x01,               # .         Usage (0139h),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),            # !!! Errata: Missing Physical Max = 0
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x04,                     # .         Report Count (4),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x13,                     # .     Report ID (19),
+    0x0A, 0x13, 0x10,               # .     Usage (1013h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x0A, 0x3B, 0x04,               # .         Usage (043Bh),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x75, 0x07,                     # .         Report Size (7),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x04, 0x04,               # .         Usage (0404h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x52, 0x04,               # .         Usage (0452h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x06,                     # .         Report Count (6),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x54, 0x04,               # .         Usage (0454h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x06,                     # .         Report Count (6),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x09, 0x0E,                     # .     Usage (0Eh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x85, 0x02,                     # .         Report ID (2),
+    0x09, 0x01,                     # .         Usage (01h),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x03,                     # .         Report ID (3),
+    0x0A, 0x03, 0x10,               # .         Usage (1003h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x04,                     # .         Report ID (4),
+    0x0A, 0x04, 0x10,               # .         Usage (1004h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x07,                     # .         Report ID (7),
+    0x0A, 0x09, 0x10,               # .         Usage (1009h),
+    0x25, 0x02,                     # .         Logical Maximum (2),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x0A, 0x07, 0x10,               # .         Usage (1007h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x0A, 0x08, 0x10,               # .         Usage (1008h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x27, 0xFF, 0xFF, 0x00, 0x00,   # .         Logical Maximum (65535),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x06,                     # .         Report Count (6),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x85, 0x0C,                     # .         Report ID (12),
+    0x0A, 0x30, 0x0D,               # .         Usage (0D30h),
+    0x0A, 0x31, 0x0D,               # .         Usage (0D31h),
+    0x0A, 0x32, 0x0D,               # .         Usage (0D32h),
+    0x0A, 0x33, 0x0D,               # .         Usage (0D33h),                  # !!! Errata: Missing Non-zero Physical Max
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x85, 0x0D,                     # .         Report ID (13),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x0A, 0x0D, 0x10,               # .         Usage (100Dh),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x14,                     # .         Report ID (20),
+    0x0A, 0x14, 0x10,               # .         Usage (1014h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x0D,                     # .         Report Count (13),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x31,                     # .         Report ID (49),
+    0x0A, 0x31, 0x10,               # .         Usage (1031h),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x95, 0x05,                     # .         Report Count (5),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x32,                     # .         Report ID (50),
+    0x0A, 0x31, 0x10,               # .         Usage (1031h),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x0A, 0x32, 0x10,               # .         Usage (1032h),
+    0x25, 0x03,                     # .         Logical Maximum (3),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x34,                     # .         Report ID (52),
+    0x0A, 0x34, 0x10,               # .         Usage (1034h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x35,                     # .         Report ID (53),
+    0x0A, 0x35, 0x10,               # .         Usage (1035h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x0A,                     # .         Report Count (10),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x36,                     # .         Report ID (54),
+    0x0A, 0x35, 0x10,               # .         Usage (1035h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x96, 0x01, 0x01,               # .         Report Count (257),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0xCC,                     # .         Report ID (204),
+    0x0A, 0xCC, 0x10,               # .         Usage (10CCh),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x02,                     # .         Report Count (2),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x0A, 0xAC, 0x10,               # .     Usage (10ACh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x85, 0xAC,                     # .         Report ID (172),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0xBF,                     # .         Report Count (191),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x85, 0x33,                     # .         Report ID (51),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x12,                     # .         Report Count (18),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x64,                     # .         Report ID (100),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0C,                     # .         Report Count (12),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x15,                     # .         Report ID (21),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x12,                     # .         Report ID (18),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x16,                     # .         Report ID (22),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x40,                     # .         Report ID (64),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x41,                     # .         Report ID (65),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x42,                     # .         Report ID (66),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x43,                     # .         Report ID (67),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0D,                     # .         Report Count (13),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x44,                     # .         Report ID (68),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3F,                     # .         Report Count (63),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x45,                     # .         Report ID (69),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x20,                     # .         Report Count (32),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x60,                     # .         Report ID (96),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3F,                     # .         Report Count (63),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x61,                     # .         Report ID (97),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x62,                     # .         Report ID (98),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0xD0,                     # .     Report ID (208),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x08, 0x00,               # .     Report Count (8),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD1,                     # .     Report ID (209),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD2,                     # .     Report ID (210),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD3,                     # .     Report ID (211),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD4,                     # .     Report ID (212),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD5,                     # .     Report ID (213),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD6,                     # .     Report ID (214),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD7,                     # .     Report ID (215),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x08, 0x00,               # .     Report Count (8),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD8,                     # .     Report ID (216),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x0C, 0x00,               # .     Report Count (12),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD9,                     # .     Report ID (217),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x00, 0x0A,               # .     Report Count (2560),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDA,                     # .     Report ID (218),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x04,               # .     Report Count (1028),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDB,                     # .     Report ID (219),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x06, 0x00,               # .     Report Count (6),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDC,                     # .     Report ID (220),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDD,                     # .     Report ID (221),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDE,                     # .     Report ID (222),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDF,                     # .     Report ID (223),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x22, 0x00,               # .     Report Count (34),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE0,                     # .     Report ID (224),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x01, 0x00,               # .     Report Count (1),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE1,                     # .     Report ID (225),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE2,                     # .     Report ID (226),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE3,                     # .     Report ID (227),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE4,                     # .     Report ID (228),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0xFF, 0x01,               # .     Report Count (511),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0xC0                            # . End Collection
+]
+# fmt: on
+
+# Report ID (20), Usage (1014h), Report Count (13) -> 15
+wacom_pth660_v150 = wacom_pth660_v145.copy()
+wacom_pth660_v150[0x2CB] = 0x0F
+
+# fmt: off
+wacom_pth860_v145 = [
+    0x05, 0x01,                     # . Usage Page (Desktop),
+    0x09, 0x02,                     # . Usage (Mouse),
+    0xA1, 0x01,                     # . Collection (Application),
+    0x85, 0x01,                     # .     Report ID (1),
+    0x09, 0x01,                     # .     Usage (Pointer),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x05, 0x09,                     # .         Usage Page (Button),
+    0x19, 0x01,                     # .         Usage Minimum (01h),
+    0x29, 0x03,                     # .         Usage Maximum (03h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x03,                     # .         Report Count (3),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x05,                     # .         Report Count (5),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x05, 0x01,                     # .         Usage Page (Desktop),
+    0x09, 0x30,                     # .         Usage (X),
+    0x09, 0x31,                     # .         Usage (Y),
+    0x15, 0x80,                     # .         Logical Minimum (-128),
+    0x25, 0x7F,                     # .         Logical Maximum (127),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x06,                     # .         Input (Variable, Relative),
+    0xC0,                           # .     End Collection,
+    0xC0,                           # . End Collection,
+    0x06, 0x0D, 0xFF,               # . Usage Page (FF0Dh),
+    0x09, 0x01,                     # . Usage (01h),
+    0xA1, 0x01,                     # . Collection (Application),
+    0x85, 0x10,                     # .     Report ID (16),
+    0x09, 0x20,                     # .     Usage (20h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x09, 0x42,                     # .         Usage (42h),
+    0x09, 0x44,                     # .         Usage (44h),
+    0x09, 0x5A,                     # .         Usage (5Ah),
+    0x09, 0x45,                     # .         Usage (45h),
+    0x09, 0x3C,                     # .         Usage (3Ch),
+    0x09, 0x32,                     # .         Usage (32h),
+    0x09, 0x36,                     # .         Usage (36h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x07,                     # .         Report Count (7),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x30, 0x01,               # .         Usage (0130h),
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x47, 0x7C, 0x79, 0x00, 0x00,   # .         Physical Maximum (31100),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x27, 0xF8, 0xF2, 0x00, 0x00,   # .         Logical Maximum (62200),
+    0x75, 0x18,                     # .         Report Size (24),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x31, 0x01,               # .         Usage (0131h),
+    0x47, 0x60, 0x54, 0x00, 0x00,   # .         Physical Maximum (21600),
+    0x27, 0xC0, 0xA8, 0x00, 0x00,   # .         Logical Maximum (43200),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x30,                     # .         Usage (30h),                    # !!! Errata: Missing Physical Max = 0
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x65, 0x00,                     # .         Unit,
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x1F,               # .         Logical Maximum (8191),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x3D,                     # .         Usage (3Dh),
+    0x09, 0x3E,                     # .         Usage (3Eh),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0xC0,                     # .         Physical Minimum (-64),
+    0x45, 0x3F,                     # .         Physical Maximum (63),
+    0x15, 0xC0,                     # .         Logical Minimum (-64),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x41,                     # .         Usage (41h),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x36, 0x4C, 0xFF,               # .         Physical Minimum (-180),
+    0x46, 0xB3, 0x00,               # .         Physical Maximum (179),
+    0x16, 0x7C, 0xFC,               # .         Logical Minimum (-900),
+    0x26, 0x83, 0x03,               # .         Logical Maximum (899),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x0A,                     # .         Input (Variable, Wrap),
+    0x0A, 0x03, 0x0D,               # .         Usage (0D03h),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x07,               # .         Logical Maximum (2047),         # !!! Errata: Missing Physical Min/Max = 0
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x32, 0x01,               # .         Usage (0132h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x5B,                     # .         Usage (5Bh),
+    0x09, 0x5C,                     # .         Usage (5Ch),
+    0x17, 0x00, 0x00, 0x00, 0x80,   # .         Logical Minimum (-2147483648),
+    0x27, 0xFF, 0xFF, 0xFF, 0x7F,   # .         Logical Maximum (2147483647),
+    0x75, 0x20,                     # .         Report Size (32),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x77,                     # .         Usage (77h),
+    0x16, 0x00, 0x00,               # .         Logical Minimum (0),
+    0x26, 0xFF, 0x0F,               # .         Logical Maximum (4095),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x11,                     # .     Report ID (17),
+    0x09, 0x39,                     # .     Usage (39h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x1A, 0x10, 0x09,               # .         Usage Minimum (0910h),
+    0x2A, 0x17, 0x09,               # .         Usage Maximum (0917h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x08,                     # .         Report Count (8),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x1A, 0x40, 0x09,               # .         Usage Minimum (0940h),
+    0x2A, 0x47, 0x09,               # .         Usage Maximum (0947h),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x95, 0x09,               # .         Usage (0995h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x07,                     # .         Report Count (7),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x38, 0x01,               # .         Usage (0138h),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x46, 0x67, 0x01,               # .         Physical Maximum (359),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x47,                     # .         Logical Maximum (71),
+    0x75, 0x07,                     # .         Report Size (7),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x0A,                     # .         Input (Variable, Wrap),
+    0x0A, 0x39, 0x01,               # .         Usage (0139h),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),            # !!! Errata: Missing Physical Max = 0
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x04,                     # .         Report Count (4),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x13,                     # .     Report ID (19),
+    0x0A, 0x13, 0x10,               # .     Usage (1013h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x0A, 0x3B, 0x04,               # .         Usage (043Bh),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x75, 0x07,                     # .         Report Size (7),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x04, 0x04,               # .         Usage (0404h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x52, 0x04,               # .         Usage (0452h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x06,                     # .         Report Count (6),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x54, 0x04,               # .         Usage (0454h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x06,                     # .         Report Count (6),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x09, 0x0E,                     # .     Usage (0Eh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x85, 0x02,                     # .         Report ID (2),
+    0x09, 0x01,                     # .         Usage (01h),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x03,                     # .         Report ID (3),
+    0x0A, 0x03, 0x10,               # .         Usage (1003h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x04,                     # .         Report ID (4),
+    0x0A, 0x04, 0x10,               # .         Usage (1004h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x07,                     # .         Report ID (7),
+    0x0A, 0x09, 0x10,               # .         Usage (1009h),
+    0x25, 0x02,                     # .         Logical Maximum (2),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x0A, 0x07, 0x10,               # .         Usage (1007h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x0A, 0x08, 0x10,               # .         Usage (1008h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x27, 0xFF, 0xFF, 0x00, 0x00,   # .         Logical Maximum (65535),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x06,                     # .         Report Count (6),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x85, 0x0C,                     # .         Report ID (12),
+    0x0A, 0x30, 0x0D,               # .         Usage (0D30h),
+    0x0A, 0x31, 0x0D,               # .         Usage (0D31h),
+    0x0A, 0x32, 0x0D,               # .         Usage (0D32h),
+    0x0A, 0x33, 0x0D,               # .         Usage (0D33h),                  # !!! Errata: Missing Non-zero Physical Max
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x85, 0x0D,                     # .         Report ID (13),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x0A, 0x0D, 0x10,               # .         Usage (100Dh),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x14,                     # .         Report ID (20),
+    0x0A, 0x14, 0x10,               # .         Usage (1014h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x0D,                     # .         Report Count (13),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x31,                     # .         Report ID (49),
+    0x0A, 0x31, 0x10,               # .         Usage (1031h),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x95, 0x05,                     # .         Report Count (5),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x32,                     # .         Report ID (50),
+    0x0A, 0x31, 0x10,               # .         Usage (1031h),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x0A, 0x32, 0x10,               # .         Usage (1032h),
+    0x25, 0x03,                     # .         Logical Maximum (3),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x34,                     # .         Report ID (52),
+    0x0A, 0x34, 0x10,               # .         Usage (1034h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x35,                     # .         Report ID (53),
+    0x0A, 0x35, 0x10,               # .         Usage (1035h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x0A,                     # .         Report Count (10),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x36,                     # .         Report ID (54),
+    0x0A, 0x35, 0x10,               # .         Usage (1035h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x96, 0x01, 0x01,               # .         Report Count (257),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0xCC,                     # .         Report ID (204),
+    0x0A, 0xCC, 0x10,               # .         Usage (10CCh),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x02,                     # .         Report Count (2),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x0A, 0xAC, 0x10,               # .     Usage (10ACh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x85, 0xAC,                     # .         Report ID (172),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0xBF,                     # .         Report Count (191),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x85, 0x33,                     # .         Report ID (51),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x12,                     # .         Report Count (18),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x64,                     # .         Report ID (100),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0C,                     # .         Report Count (12),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x15,                     # .         Report ID (21),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x12,                     # .         Report ID (18),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x16,                     # .         Report ID (22),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x40,                     # .         Report ID (64),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x41,                     # .         Report ID (65),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x42,                     # .         Report ID (66),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x43,                     # .         Report ID (67),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0D,                     # .         Report Count (13),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x44,                     # .         Report ID (68),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3F,                     # .         Report Count (63),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x45,                     # .         Report ID (69),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x20,                     # .         Report Count (32),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x60,                     # .         Report ID (96),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3F,                     # .         Report Count (63),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x61,                     # .         Report ID (97),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x62,                     # .         Report ID (98),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0xD0,                     # .     Report ID (208),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x08, 0x00,               # .     Report Count (8),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD1,                     # .     Report ID (209),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD2,                     # .     Report ID (210),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD3,                     # .     Report ID (211),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD4,                     # .     Report ID (212),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD5,                     # .     Report ID (213),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD6,                     # .     Report ID (214),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD7,                     # .     Report ID (215),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x08, 0x00,               # .     Report Count (8),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD8,                     # .     Report ID (216),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x0C, 0x00,               # .     Report Count (12),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD9,                     # .     Report ID (217),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x00, 0x0A,               # .     Report Count (2560),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDA,                     # .     Report ID (218),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x04,               # .     Report Count (1028),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDB,                     # .     Report ID (219),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x06, 0x00,               # .     Report Count (6),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDC,                     # .     Report ID (220),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDD,                     # .     Report ID (221),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDE,                     # .     Report ID (222),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDF,                     # .     Report ID (223),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x22, 0x00,               # .     Report Count (34),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE0,                     # .     Report ID (224),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x01, 0x00,               # .     Report Count (1),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE1,                     # .     Report ID (225),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE2,                     # .     Report ID (226),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE3,                     # .     Report ID (227),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE4,                     # .     Report ID (228),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0xFF, 0x01,               # .     Report Count (511),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0xC0                            # . End Collection
+]
+# fmt: on
+
+# Report ID (20), Usage (1014h), Report Count (13) -> 15
+wacom_pth860_v150 = wacom_pth860_v145.copy()
+wacom_pth860_v150[0x2CA] = 0x0F
+
+# fmt: off
+wacom_pth460_v105 = [
+    0x06, 0x0D, 0xFF,               # . Usage Page (FF0Dh),
+    0x09, 0x01,                     # . Usage (01h),
+    0xA1, 0x01,                     # . Collection (Application),
+    0x85, 0x10,                     # .     Report ID (16),
+    0x09, 0x20,                     # .     Usage (20h),
+    0x35, 0x00,                     # .     Physical Minimum (0),
+    0x45, 0x00,                     # .     Physical Maximum (0),
+    0x15, 0x00,                     # .     Logical Minimum (0),
+    0x25, 0x01,                     # .     Logical Maximum (1),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x09, 0x42,                     # .         Usage (42h),
+    0x09, 0x44,                     # .         Usage (44h),
+    0x09, 0x5A,                     # .         Usage (5Ah),
+    0x09, 0x45,                     # .         Usage (45h),
+    0x09, 0x3C,                     # .         Usage (3Ch),
+    0x09, 0x32,                     # .         Usage (32h),
+    0x09, 0x36,                     # .         Usage (36h),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x01,                     # .         Report Size (1),
+    0x95, 0x07,                     # .         Report Count (7),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x0A, 0x30, 0x01,               # .         Usage (0130h),
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x47, 0x58, 0x3E, 0x00, 0x00,   # .         Physical Maximum (15960),
+    0x27, 0xB0, 0x7C, 0x00, 0x00,   # .         Logical Maximum (31920),
+    0x75, 0x18,                     # .         Report Size (24),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x31, 0x01,               # .         Usage (0131h),
+    0x47, 0xF7, 0x26, 0x00, 0x00,   # .         Physical Maximum (9975),
+    0x27, 0xEE, 0x4D, 0x00, 0x00,   # .         Logical Maximum (19950),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x30,                     # .         Usage (30h),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x65, 0x00,                     # .         Unit,
+    0x26, 0xFF, 0x1F,               # .         Logical Maximum (8191),         # !!! Errata: Missing Physical Max = 0
+    0x75, 0x10,                     # .         Report Size (16),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x3D,                     # .         Usage (3Dh),
+    0x09, 0x3E,                     # .         Usage (3Eh),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0xC0,                     # .         Physical Minimum (-64),
+    0x45, 0x3F,                     # .         Physical Maximum (63),
+    0x15, 0xC0,                     # .         Logical Minimum (-64),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x41,                     # .         Usage (41h),
+    0x65, 0x14,                     # .         Unit (Degrees),
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x36, 0x4C, 0xFF,               # .         Physical Minimum (-180),
+    0x46, 0xB3, 0x00,               # .         Physical Maximum (179),
+    0x16, 0x7C, 0xFC,               # .         Logical Minimum (-900),
+    0x26, 0x83, 0x03,               # .         Logical Maximum (899),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x0A,                     # .         Input (Variable, Wrap),
+    0x0A, 0x03, 0x0D,               # .         Usage (0D03h),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x45, 0x00,                     # .         Physical Maximum (0),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x07,               # .         Logical Maximum (2047),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x0A, 0x32, 0x01,               # .         Usage (0132h),
+    0x25, 0x3F,                     # .         Logical Maximum (63),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x5B,                     # .         Usage (5Bh),
+    0x09, 0x5C,                     # .         Usage (5Ch),
+    0x17, 0x00, 0x00, 0x00, 0x80,   # .         Logical Minimum (-2147483648),
+    0x27, 0xFF, 0xFF, 0xFF, 0x7F,   # .         Logical Maximum (2147483647),
+    0x75, 0x20,                     # .         Report Size (32),
+    0x95, 0x02,                     # .         Report Count (2),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x09, 0x77,                     # .         Usage (77h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x0F,               # .         Logical Maximum (4095),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x02,                     # .         Input (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x11,                     # .     Report ID (17),
+    0x65, 0x00,                     # .     Unit,
+    0x55, 0x00,                     # .     Unit Exponent (0),
+    0x35, 0x00,                     # .     Physical Minimum (0),
+    0x45, 0x00,                     # .     Physical Maximum (0),
+    0x09, 0x39,                     # .     Usage (39h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x09, 0x39,                     # .         Usage (39h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x1A, 0x10, 0x09,               # .             Usage Minimum (0910h),
+    0x2A, 0x15, 0x09,               # .             Usage Maximum (0915h),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x95, 0x06,                     # .             Report Count (6),
+    0x81, 0x02,                     # .             Input (Variable),
+    0x95, 0x02,                     # .             Report Count (2),
+    0x81, 0x03,                     # .             Input (Constant, Variable),
+    0xC0,                           # .         End Collection,
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0x09, 0x39,                     # .         Usage (39h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x0A, 0x95, 0x09,               # .             Usage (0995h),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0x95, 0x07,                     # .             Report Count (7),
+    0x81, 0x03,                     # .             Input (Constant, Variable),
+    0xC0,                           # .         End Collection,
+    0x09, 0x39,                     # .         Usage (39h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x0A, 0x38, 0x01,               # .             Usage (0138h),
+    0x65, 0x14,                     # .             Unit (Degrees),
+    0x55, 0x00,                     # .             Unit Exponent (0),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x46, 0x67, 0x01,               # .             Physical Maximum (359),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x47,                     # .             Logical Maximum (71),
+    0x75, 0x07,                     # .             Report Size (7),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x4A,                     # .             Input (Variable, Wrap, Null State),
+    0x0A, 0x39, 0x01,               # .             Usage (0139h),
+    0x65, 0x00,                     # .             Unit,
+    0x55, 0x00,                     # .             Unit Exponent (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0xC0,                           # .         End Collection,
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x04,                     # .         Report Count (4),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0x13,                     # .     Report ID (19),
+    0x65, 0x00,                     # .     Unit,
+    0x55, 0x00,                     # .     Unit Exponent (0),
+    0x35, 0x00,                     # .     Physical Minimum (0),
+    0x45, 0x00,                     # .     Physical Maximum (0),
+    0x0A, 0x13, 0x10,               # .     Usage (1013h),
+    0xA1, 0x00,                     # .     Collection (Physical),
+    0x0A, 0x13, 0x10,               # .         Usage (1013h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x0A, 0x3B, 0x04,               # .             Usage (043Bh),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x64,                     # .             Logical Maximum (100),
+    0x75, 0x07,                     # .             Report Size (7),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0x0A, 0x04, 0x04,               # .             Usage (0404h),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0xC0,                           # .         End Collection,
+    0x0A, 0x13, 0x10,               # .         Usage (1013h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x0A, 0x52, 0x04,               # .             Usage (0452h),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0x0A, 0x41, 0x04,               # .             Usage (0441h),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x07,                     # .             Logical Maximum (7),
+    0x75, 0x03,                     # .             Report Size (3),
+    0x95, 0x02,                     # .             Report Count (2),
+    0x81, 0x02,                     # .             Input (Variable),
+    0x0A, 0x54, 0x04,               # .             Usage (0454h),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x25, 0x01,                     # .             Logical Maximum (1),
+    0x75, 0x01,                     # .             Report Size (1),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0xC0,                           # .         End Collection,
+    0x0A, 0x13, 0x10,               # .         Usage (1013h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x0A, 0x3C, 0x04,               # .             Usage (043Ch),
+    0x55, 0x00,                     # .             Unit Exponent (0),
+    0x65, 0x00,                     # .             Unit,
+    0x15, 0xFB,                     # .             Logical Minimum (-5),
+    0x25, 0x32,                     # .             Logical Maximum (50),
+    0x75, 0x08,                     # .             Report Size (8),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0xC0,                           # .         End Collection,
+    0x0A, 0x13, 0x10,               # .         Usage (1013h),
+    0xA1, 0x00,                     # .         Collection (Physical),
+    0x35, 0x00,                     # .             Physical Minimum (0),
+    0x45, 0x00,                     # .             Physical Maximum (0),
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x0A, 0x3D, 0x04,               # .             Usage (043Dh),
+    0x55, 0x00,                     # .             Unit Exponent (0),
+    0x65, 0x00,                     # .             Unit,
+    0x15, 0x00,                     # .             Logical Minimum (0),
+    0x26, 0xFF, 0x0F,               # .             Logical Maximum (4095),
+    0x75, 0x10,                     # .             Report Size (16),
+    0x95, 0x01,                     # .             Report Count (1),
+    0x81, 0x02,                     # .             Input (Variable),
+    0xC0,                           # .         End Collection,
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x03,                     # .         Report Count (3),
+    0x81, 0x03,                     # .         Input (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x09, 0x0E,                     # .     Usage (0Eh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x85, 0x02,                     # .         Report ID (2),
+    0x0A, 0x02, 0x10,               # .         Usage (1002h),
+    0x15, 0x02,                     # .         Logical Minimum (2),
+    0x25, 0x02,                     # .         Logical Maximum (2),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x03,                     # .         Report ID (3),
+    0x0A, 0x03, 0x10,               # .         Usage (1003h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x04,                     # .         Report ID (4),
+    0x0A, 0x04, 0x10,               # .         Usage (1004h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x07,                     # .         Report ID (7),
+    0x0A, 0x09, 0x10,               # .         Usage (1009h),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x0A, 0x07, 0x10,               # .         Usage (1007h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x0A, 0x08, 0x10,               # .         Usage (1008h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x27, 0xFF, 0xFF, 0x00, 0x00,   # .         Logical Maximum (65535),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x06,                     # .         Report Count (6),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x25, 0x00,                     # .         Logical Maximum (0),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0x85, 0x0C,                     # .         Report ID (12),
+    0x0A, 0x30, 0x0D,               # .         Usage (0D30h),
+    0x0A, 0x31, 0x0D,               # .         Usage (0D31h),
+    0x0A, 0x32, 0x0D,               # .         Usage (0D32h),
+    0x0A, 0x33, 0x0D,               # .         Usage (0D33h),
+    0x65, 0x11,                     # .         Unit (Centimeter),
+    0x55, 0x0D,                     # .         Unit Exponent (13),
+    0x35, 0x00,                     # .         Physical Minimum (0),
+    0x46, 0xC8, 0x00,               # .         Physical Maximum (200),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0x90, 0x01,               # .         Logical Maximum (400),
+    0x75, 0x10,                     # .         Report Size (16),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x0D,                     # .         Report ID (13),
+    0x0A, 0x0D, 0x10,               # .         Usage (100Dh),
+    0x65, 0x00,                     # .         Unit,
+    0x55, 0x00,                     # .         Unit Exponent (0),
+    0x45, 0x00,                     # .         Physical Maximum (0),
+    0x25, 0x01,                     # .         Logical Maximum (1),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x95, 0x01,                     # .         Report Count (1),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x14,                     # .         Report ID (20),
+    0x0A, 0x14, 0x10,               # .         Usage (1014h),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x95, 0x0D,                     # .         Report Count (13),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0xCC,                     # .         Report ID (204),
+    0x0A, 0xCC, 0x10,               # .         Usage (10CCh),
+    0x95, 0x02,                     # .         Report Count (2),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x09, 0x0E,                     # .     Usage (0Eh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x85, 0x31,                     # .         Report ID (49),
+    0x0A, 0x31, 0x10,               # .         Usage (1031h),
+    0x25, 0x64,                     # .         Logical Maximum (100),
+    0x95, 0x03,                     # .         Report Count (3),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x95, 0x02,                     # .         Report Count (2),
+    0xB1, 0x03,                     # .         Feature (Constant, Variable),
+    0xC0,                           # .     End Collection,
+    0x0A, 0xAC, 0x10,               # .     Usage (10ACh),
+    0xA1, 0x02,                     # .     Collection (Logical),
+    0x15, 0x00,                     # .         Logical Minimum (0),
+    0x26, 0xFF, 0x00,               # .         Logical Maximum (255),
+    0x75, 0x08,                     # .         Report Size (8),
+    0x85, 0xAC,                     # .         Report ID (172),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x96, 0xBF, 0x00,               # .         Report Count (191),
+    0x81, 0x02,                     # .         Input (Variable),
+    0x85, 0x15,                     # .         Report ID (21),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x33,                     # .         Report ID (51),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x12,                     # .         Report Count (18),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x44,                     # .         Report ID (68),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x45,                     # .         Report ID (69),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x20,                     # .         Report Count (32),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x60,                     # .         Report ID (96),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3F,                     # .         Report Count (63),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x61,                     # .         Report ID (97),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x62,                     # .         Report ID (98),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x65,                     # .         Report ID (101),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x66,                     # .         Report ID (102),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x67,                     # .         Report ID (103),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x04,                     # .         Report Count (4),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x68,                     # .         Report ID (104),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x11,                     # .         Report Count (17),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x6F,                     # .         Report ID (111),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x3E,                     # .         Report Count (62),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0xCD,                     # .         Report ID (205),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x02,                     # .         Report Count (2),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x16,                     # .         Report ID (22),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0E,                     # .         Report Count (14),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0x85, 0x35,                     # .         Report ID (53),
+    0x09, 0x00,                     # .         Usage (00h),
+    0x95, 0x0A,                     # .         Report Count (10),
+    0xB1, 0x02,                     # .         Feature (Variable),
+    0xC0,                           # .     End Collection,
+    0x85, 0xD1,                     # .     Report ID (209),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD2,                     # .     Report ID (210),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x01,               # .     Report Count (260),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD3,                     # .     Report ID (211),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD4,                     # .     Report ID (212),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD5,                     # .     Report ID (213),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD6,                     # .     Report ID (214),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD7,                     # .     Report ID (215),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x08, 0x00,               # .     Report Count (8),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD8,                     # .     Report ID (216),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x0C, 0x00,               # .     Report Count (12),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xD9,                     # .     Report ID (217),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x00, 0x0A,               # .     Report Count (2560),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDA,                     # .     Report ID (218),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x04,               # .     Report Count (1028),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDB,                     # .     Report ID (219),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x06, 0x00,               # .     Report Count (6),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDC,                     # .     Report ID (220),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDD,                     # .     Report ID (221),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDE,                     # .     Report ID (222),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x04, 0x00,               # .     Report Count (4),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xDF,                     # .     Report ID (223),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x22, 0x00,               # .     Report Count (34),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE0,                     # .     Report ID (224),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x01, 0x00,               # .     Report Count (1),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE1,                     # .     Report ID (225),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE2,                     # .     Report ID (226),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE3,                     # .     Report ID (227),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x02, 0x00,               # .     Report Count (2),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xE4,                     # .     Report ID (228),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0xFF, 0x01,               # .     Report Count (511),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0x85, 0xCB,                     # .     Report ID (203),
+    0x09, 0x01,                     # .     Usage (01h),
+    0x96, 0x1F, 0x00,               # .     Report Count (31),
+    0xB1, 0x02,                     # .     Feature (Variable),
+    0xC0                            # . End Collection
+]
+# fmt: on
diff --git a/tools/testing/selftests/hid/tests/test_apple_keyboard.py b/tools/testing/selftests/hid/tests/test_apple_keyboard.py
new file mode 100644
index 000000000000..0e17588b945c
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_apple_keyboard.py
@@ -0,0 +1,441 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2019 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2019 Red Hat, Inc.
+#
+
+from .test_keyboard import ArrayKeyboard, TestArrayKeyboard
+from hidtools.util import BusType
+from . import base
+
+import libevdev
+import logging
+
+logger = logging.getLogger("hidtools.test.apple-keyboard")
+
+KERNEL_MODULE = base.KernelModule("apple", "hid-apple")
+
+
+class KbdData(object):
+    pass
+
+
+class AppleKeyboard(ArrayKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,         # Usage Page (Generic Desktop)
+        0x09, 0x06,         # Usage (Keyboard)
+        0xa1, 0x01,         # Collection (Application)
+        0x85, 0x01,         # .Report ID (1)
+        0x05, 0x07,         # .Usage Page (Keyboard)
+        0x19, 0xe0,         # .Usage Minimum (224)
+        0x29, 0xe7,         # .Usage Maximum (231)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x25, 0x01,         # .Logical Maximum (1)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x08,         # .Report Count (8)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x75, 0x08,         # .Report Size (8)
+        0x95, 0x01,         # .Report Count (1)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x05,         # .Report Count (5)
+        0x05, 0x08,         # .Usage Page (LEDs)
+        0x19, 0x01,         # .Usage Minimum (1)
+        0x29, 0x05,         # .Usage Maximum (5)
+        0x91, 0x02,         # .Output (Data,Var,Abs)
+        0x75, 0x03,         # .Report Size (3)
+        0x95, 0x01,         # .Report Count (1)
+        0x91, 0x01,         # .Output (Cnst,Arr,Abs)
+        0x75, 0x08,         # .Report Size (8)
+        0x95, 0x06,         # .Report Count (6)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x26, 0xff, 0x00,   # .Logical Maximum (255)
+        0x05, 0x07,         # .Usage Page (Keyboard)
+        0x19, 0x00,         # .Usage Minimum (0)
+        0x2a, 0xff, 0x00,   # .Usage Maximum (255)
+        0x81, 0x00,         # .Input (Data,Arr,Abs)
+        0xc0,               # End Collection
+        0x05, 0x0c,         # Usage Page (Consumer Devices)
+        0x09, 0x01,         # Usage (Consumer Control)
+        0xa1, 0x01,         # Collection (Application)
+        0x85, 0x47,         # .Report ID (71)
+        0x05, 0x01,         # .Usage Page (Generic Desktop)
+        0x09, 0x06,         # .Usage (Keyboard)
+        0xa1, 0x02,         # .Collection (Logical)
+        0x05, 0x06,         # ..Usage Page (Generic Device Controls)
+        0x09, 0x20,         # ..Usage (Battery Strength)
+        0x15, 0x00,         # ..Logical Minimum (0)
+        0x26, 0xff, 0x00,   # ..Logical Maximum (255)
+        0x75, 0x08,         # ..Report Size (8)
+        0x95, 0x01,         # ..Report Count (1)
+        0x81, 0x02,         # ..Input (Data,Var,Abs)
+        0xc0,               # .End Collection
+        0xc0,               # End Collection
+        0x05, 0x0c,         # Usage Page (Consumer Devices)
+        0x09, 0x01,         # Usage (Consumer Control)
+        0xa1, 0x01,         # Collection (Application)
+        0x85, 0x11,         # .Report ID (17)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x25, 0x01,         # .Logical Maximum (1)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x03,         # .Report Count (3)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x01,         # .Report Count (1)
+        0x05, 0x0c,         # .Usage Page (Consumer Devices)
+        0x09, 0xb8,         # .Usage (Eject)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x06, 0xff, 0x00,   # .Usage Page (Vendor Usage Page 0xff)
+        0x09, 0x03,         # .Usage (Vendor Usage 0x03)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x03,         # .Report Count (3)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x05, 0x0c,         # .Usage Page (Consumer Devices)
+        0x85, 0x12,         # .Report ID (18)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x25, 0x01,         # .Logical Maximum (1)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x01,         # .Report Count (1)
+        0x09, 0xcd,         # .Usage (Play/Pause)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x09, 0xb3,         # .Usage (Fast Forward)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x09, 0xb4,         # .Usage (Rewind)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x09, 0xb5,         # .Usage (Scan Next Track)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x09, 0xb6,         # .Usage (Scan Previous Track)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x85, 0x13,         # .Report ID (19)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x25, 0x01,         # .Logical Maximum (1)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x01,         # .Report Count (1)
+        0x06, 0x01, 0xff,   # .Usage Page (Vendor Usage Page 0xff01)
+        0x09, 0x0a,         # .Usage (Vendor Usage 0x0a)
+        0x81, 0x02,         # .Input (Data,Var,Abs)
+        0x06, 0x01, 0xff,   # .Usage Page (Vendor Usage Page 0xff01)
+        0x09, 0x0c,         # .Usage (Vendor Usage 0x0c)
+        0x81, 0x22,         # .Input (Data,Var,Abs,NoPref)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x06,         # .Report Count (6)
+        0x81, 0x01,         # .Input (Cnst,Arr,Abs)
+        0x85, 0x09,         # .Report ID (9)
+        0x09, 0x0b,         # .Usage (Vendor Usage 0x0b)
+        0x75, 0x08,         # .Report Size (8)
+        0x95, 0x01,         # .Report Count (1)
+        0xb1, 0x02,         # .Feature (Data,Var,Abs)
+        0x75, 0x08,         # .Report Size (8)
+        0x95, 0x02,         # .Report Count (2)
+        0xb1, 0x01,         # .Feature (Cnst,Arr,Abs)
+        0xc0,               # End Collection
+    ]
+    # fmt: on
+
+    def __init__(
+        self,
+        rdesc=report_descriptor,
+        name="Apple Wireless Keyboard",
+        input_info=(BusType.BLUETOOTH, 0x05AC, 0x0256),
+    ):
+        super().__init__(rdesc, name, input_info)
+        self.default_reportID = 1
+
+    def send_fn_state(self, state):
+        data = KbdData()
+        setattr(data, "0xff0003", state)
+        r = self.create_report(data, reportID=17)
+        self.call_input_event(r)
+        return [r]
+
+
+class TestAppleKeyboard(TestArrayKeyboard):
+    kernel_modules = [KERNEL_MODULE]
+
+    def create_device(self):
+        return AppleKeyboard()
+
+    def test_single_function_key(self):
+        """check for function key reliability."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.event(["F4"])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 0
+
+    def test_single_fn_function_key(self):
+        """check for function key reliability with the fn key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.send_fn_state(1)
+        r.extend(uhdev.event(["F4"]))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 1
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        r = uhdev.send_fn_state(0)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+    def test_single_fn_function_key_release_first(self):
+        """check for function key reliability with the fn key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.send_fn_state(1)
+        r.extend(uhdev.event(["F4"]))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 1
+
+        r = uhdev.send_fn_state(0)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+
+    def test_single_fn_function_key_inverted(self):
+        """check for function key reliability with the fn key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.event(["F4"])
+        r.extend(uhdev.send_fn_state(1))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        r = uhdev.send_fn_state(0)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+    def test_multiple_fn_function_key_release_first(self):
+        """check for function key reliability with the fn key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.send_fn_state(1)
+        r.extend(uhdev.event(["F4"]))
+        r.extend(uhdev.event(["F4", "F6"]))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F6, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        r = uhdev.event(["F6"])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F4, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        r = uhdev.send_fn_state(0)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F6, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+    def test_multiple_fn_function_key_release_between(self):
+        """check for function key reliability with the fn key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        # press F4
+        r = uhdev.event(["F4"])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_KBDILLUMUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+        # press Fn key
+        r = uhdev.send_fn_state(1)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_KBDILLUMUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        # keep F4 and press F6
+        r = uhdev.event(["F4", "F6"])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F6, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_KBDILLUMUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        # keep F4 and F6
+        r = uhdev.event(["F4", "F6"])
+        expected = []
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_KBDILLUMUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        # release Fn key and all keys
+        r = uhdev.send_fn_state(0)
+        r.extend(uhdev.event([]))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_ALL_APPLICATIONS, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_F6, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_F4] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_ALL_APPLICATIONS] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_F6] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_KBDILLUMUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+    def test_single_pageup_key_release_first(self):
+        """check for function key reliability with the [page] up key."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+        syn_event = self.syn_event
+
+        r = uhdev.send_fn_state(1)
+        r.extend(uhdev.event(["UpArrow"]))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_PAGEUP, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_PAGEUP] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_UP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 1
+
+        r = uhdev.send_fn_state(0)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_FN, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_PAGEUP] == 1
+        assert evdev.value[libevdev.EV_KEY.KEY_UP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_PAGEUP, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+        assert evdev.value[libevdev.EV_KEY.KEY_PAGEUP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_UP] == 0
+        assert evdev.value[libevdev.EV_KEY.KEY_FN] == 0
diff --git a/tools/testing/selftests/hid/tests/test_gamepad.py b/tools/testing/selftests/hid/tests/test_gamepad.py
new file mode 100644
index 000000000000..612197805931
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_gamepad.py
@@ -0,0 +1,665 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2019 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2019 Red Hat, Inc.
+#
+
+from . import base
+import libevdev
+import pytest
+
+from .base_gamepad import BaseGamepad, JoystickGamepad, AxisMapping
+from hidtools.util import BusType
+from .base import HidBpf
+
+import logging
+
+logger = logging.getLogger("hidtools.test.gamepad")
+
+
+class BaseTest:
+    class TestGamepad(base.BaseTestCase.TestUhid):
+        @pytest.fixture(autouse=True)
+        def send_initial_state(self):
+            """send an empty report to initialize the axes"""
+            uhdev = self.uhdev
+
+            r = uhdev.event()
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+        def assert_button(self, button):
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            syn_event = self.syn_event
+
+            buttons = {}
+            key = libevdev.evbit(uhdev.buttons_map[button])
+
+            buttons[button] = True
+            r = uhdev.event(buttons=buttons)
+            expected_event = libevdev.InputEvent(key, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[key] == 1
+
+            buttons[button] = False
+            r = uhdev.event(buttons=buttons)
+            expected_event = libevdev.InputEvent(key, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[key] == 0
+
+        def test_buttons(self):
+            """check for button reliability."""
+            uhdev = self.uhdev
+
+            for b in uhdev.buttons:
+                self.assert_button(b)
+
+        def test_dual_buttons(self):
+            """check for button reliability when pressing 2 buttons"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            syn_event = self.syn_event
+
+            # can change intended b1 b2 values
+            b1 = uhdev.buttons[0]
+            key1 = libevdev.evbit(uhdev.buttons_map[b1])
+            b2 = uhdev.buttons[1]
+            key2 = libevdev.evbit(uhdev.buttons_map[b2])
+
+            buttons = {b1: True, b2: True}
+            r = uhdev.event(buttons=buttons)
+            expected_event0 = libevdev.InputEvent(key1, 1)
+            expected_event1 = libevdev.InputEvent(key2, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(
+                (syn_event, expected_event0, expected_event1), events
+            )
+            assert evdev.value[key1] == 1
+            assert evdev.value[key2] == 1
+
+            buttons = {b1: False, b2: None}
+            r = uhdev.event(buttons=buttons)
+            expected_event = libevdev.InputEvent(key1, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[key1] == 0
+            assert evdev.value[key2] == 1
+
+            buttons = {b1: None, b2: False}
+            r = uhdev.event(buttons=buttons)
+            expected_event = libevdev.InputEvent(key2, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[key1] == 0
+            assert evdev.value[key2] == 0
+
+        def _get_libevdev_abs_events(self, which):
+            """Returns which ABS_* evdev axes are expected for the given stick"""
+            abs_map = self.uhdev.axes_map[which]
+
+            x = abs_map["x"].evdev
+            y = abs_map["y"].evdev
+
+            assert x
+            assert y
+
+            return x, y
+
+        def _test_joystick_press(self, which, data):
+            uhdev = self.uhdev
+
+            libevdev_axes = self._get_libevdev_abs_events(which)
+
+            r = None
+            if which == "left_stick":
+                r = uhdev.event(left=data)
+            else:
+                r = uhdev.event(right=data)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            for i, d in enumerate(data):
+                if d is not None and d != 127:
+                    assert libevdev.InputEvent(libevdev_axes[i], d) in events
+                else:
+                    assert libevdev.InputEvent(libevdev_axes[i]) not in events
+
+        def test_left_joystick_press_left(self):
+            """check for the left joystick reliability"""
+            self._test_joystick_press("left_stick", (63, None))
+            self._test_joystick_press("left_stick", (0, 127))
+
+        def test_left_joystick_press_right(self):
+            """check for the left joystick reliability"""
+            self._test_joystick_press("left_stick", (191, 127))
+            self._test_joystick_press("left_stick", (255, None))
+
+        def test_left_joystick_press_up(self):
+            """check for the left joystick reliability"""
+            self._test_joystick_press("left_stick", (None, 63))
+            self._test_joystick_press("left_stick", (127, 0))
+
+        def test_left_joystick_press_down(self):
+            """check for the left joystick reliability"""
+            self._test_joystick_press("left_stick", (127, 191))
+            self._test_joystick_press("left_stick", (None, 255))
+
+        def test_right_joystick_press_left(self):
+            """check for the right joystick reliability"""
+            self._test_joystick_press("right_stick", (63, None))
+            self._test_joystick_press("right_stick", (0, 127))
+
+        def test_right_joystick_press_right(self):
+            """check for the right joystick reliability"""
+            self._test_joystick_press("right_stick", (191, 127))
+            self._test_joystick_press("right_stick", (255, None))
+
+        def test_right_joystick_press_up(self):
+            """check for the right joystick reliability"""
+            self._test_joystick_press("right_stick", (None, 63))
+            self._test_joystick_press("right_stick", (127, 0))
+
+        def test_right_joystick_press_down(self):
+            """check for the right joystick reliability"""
+            self._test_joystick_press("right_stick", (127, 191))
+            self._test_joystick_press("right_stick", (None, 255))
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Hat switch" not in uhdev.fields,
+            "Device not compatible, missing Hat switch usage",
+        )
+        @pytest.mark.parametrize(
+            "hat_value,expected_evdev,evdev_value",
+            [
+                (0, "ABS_HAT0Y", -1),
+                (2, "ABS_HAT0X", 1),
+                (4, "ABS_HAT0Y", 1),
+                (6, "ABS_HAT0X", -1),
+            ],
+        )
+        def test_hat_switch(self, hat_value, expected_evdev, evdev_value):
+            uhdev = self.uhdev
+
+            r = uhdev.event(hat_switch=hat_value)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert (
+                libevdev.InputEvent(
+                    libevdev.evbit("EV_ABS", expected_evdev), evdev_value
+                )
+                in events
+            )
+
+
+class SaitekGamepad(JoystickGamepad):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)        0
+        0x09, 0x04,                    # Usage (Joystick)                    2
+        0xa1, 0x01,                    # Collection (Application)            4
+        0x09, 0x01,                    # .Usage (Pointer)                    6
+        0xa1, 0x00,                    # .Collection (Physical)              8
+        0x85, 0x01,                    # ..Report ID (1)                     10
+        0x09, 0x30,                    # ..Usage (X)                         12
+        0x15, 0x00,                    # ..Logical Minimum (0)               14
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             16
+        0x35, 0x00,                    # ..Physical Minimum (0)              19
+        0x46, 0xff, 0x00,              # ..Physical Maximum (255)            21
+        0x75, 0x08,                    # ..Report Size (8)                   24
+        0x95, 0x01,                    # ..Report Count (1)                  26
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              28
+        0x09, 0x31,                    # ..Usage (Y)                         30
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              32
+        0x05, 0x02,                    # ..Usage Page (Simulation Controls)  34
+        0x09, 0xba,                    # ..Usage (Rudder)                    36
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              38
+        0x09, 0xbb,                    # ..Usage (Throttle)                  40
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              42
+        0x05, 0x09,                    # ..Usage Page (Button)               44
+        0x19, 0x01,                    # ..Usage Minimum (1)                 46
+        0x29, 0x0c,                    # ..Usage Maximum (12)                48
+        0x25, 0x01,                    # ..Logical Maximum (1)               50
+        0x45, 0x01,                    # ..Physical Maximum (1)              52
+        0x75, 0x01,                    # ..Report Size (1)                   54
+        0x95, 0x0c,                    # ..Report Count (12)                 56
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              58
+        0x95, 0x01,                    # ..Report Count (1)                  60
+        0x75, 0x00,                    # ..Report Size (0)                   62
+        0x81, 0x03,                    # ..Input (Cnst,Var,Abs)              64
+        0x05, 0x01,                    # ..Usage Page (Generic Desktop)      66
+        0x09, 0x39,                    # ..Usage (Hat switch)                68
+        0x25, 0x07,                    # ..Logical Maximum (7)               70
+        0x46, 0x3b, 0x01,              # ..Physical Maximum (315)            72
+        0x55, 0x00,                    # ..Unit Exponent (0)                 75
+        0x65, 0x44,                    # ..Unit (Degrees^4,EngRotation)      77
+        0x75, 0x04,                    # ..Report Size (4)                   79
+        0x81, 0x42,                    # ..Input (Data,Var,Abs,Null)         81
+        0x65, 0x00,                    # ..Unit (None)                       83
+        0xc0,                          # .End Collection                     85
+        0x05, 0x0f,                    # .Usage Page (Vendor Usage Page 0x0f) 86
+        0x09, 0x92,                    # .Usage (Vendor Usage 0x92)          88
+        0xa1, 0x02,                    # .Collection (Logical)               90
+        0x85, 0x02,                    # ..Report ID (2)                     92
+        0x09, 0xa0,                    # ..Usage (Vendor Usage 0xa0)         94
+        0x09, 0x9f,                    # ..Usage (Vendor Usage 0x9f)         96
+        0x25, 0x01,                    # ..Logical Maximum (1)               98
+        0x45, 0x00,                    # ..Physical Maximum (0)              100
+        0x75, 0x01,                    # ..Report Size (1)                   102
+        0x95, 0x02,                    # ..Report Count (2)                  104
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              106
+        0x75, 0x06,                    # ..Report Size (6)                   108
+        0x95, 0x01,                    # ..Report Count (1)                  110
+        0x81, 0x03,                    # ..Input (Cnst,Var,Abs)              112
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         114
+        0x75, 0x07,                    # ..Report Size (7)                   116
+        0x25, 0x7f,                    # ..Logical Maximum (127)             118
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              120
+        0x09, 0x94,                    # ..Usage (Vendor Usage 0x94)         122
+        0x75, 0x01,                    # ..Report Size (1)                   124
+        0x25, 0x01,                    # ..Logical Maximum (1)               126
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              128
+        0xc0,                          # .End Collection                     130
+        0x09, 0x21,                    # .Usage (Vendor Usage 0x21)          131
+        0xa1, 0x02,                    # .Collection (Logical)               133
+        0x85, 0x0b,                    # ..Report ID (11)                    135
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         137
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             139
+        0x75, 0x08,                    # ..Report Size (8)                   142
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             144
+        0x09, 0x53,                    # ..Usage (Vendor Usage 0x53)         146
+        0x25, 0x0a,                    # ..Logical Maximum (10)              148
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             150
+        0x09, 0x50,                    # ..Usage (Vendor Usage 0x50)         152
+        0x27, 0xfe, 0xff, 0x00, 0x00,  # ..Logical Maximum (65534)           154
+        0x47, 0xfe, 0xff, 0x00, 0x00,  # ..Physical Maximum (65534)          159
+        0x75, 0x10,                    # ..Report Size (16)                  164
+        0x55, 0xfd,                    # ..Unit Exponent (237)               166
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           168
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             171
+        0x55, 0x00,                    # ..Unit Exponent (0)                 173
+        0x65, 0x00,                    # ..Unit (None)                       175
+        0x09, 0x54,                    # ..Usage (Vendor Usage 0x54)         177
+        0x55, 0xfd,                    # ..Unit Exponent (237)               179
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           181
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             184
+        0x55, 0x00,                    # ..Unit Exponent (0)                 186
+        0x65, 0x00,                    # ..Unit (None)                       188
+        0x09, 0xa7,                    # ..Usage (Vendor Usage 0xa7)         190
+        0x55, 0xfd,                    # ..Unit Exponent (237)               192
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           194
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             197
+        0x55, 0x00,                    # ..Unit Exponent (0)                 199
+        0x65, 0x00,                    # ..Unit (None)                       201
+        0xc0,                          # .End Collection                     203
+        0x09, 0x5a,                    # .Usage (Vendor Usage 0x5a)          204
+        0xa1, 0x02,                    # .Collection (Logical)               206
+        0x85, 0x0c,                    # ..Report ID (12)                    208
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         210
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             212
+        0x45, 0x00,                    # ..Physical Maximum (0)              215
+        0x75, 0x08,                    # ..Report Size (8)                   217
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             219
+        0x09, 0x5c,                    # ..Usage (Vendor Usage 0x5c)         221
+        0x26, 0x10, 0x27,              # ..Logical Maximum (10000)           223
+        0x46, 0x10, 0x27,              # ..Physical Maximum (10000)          226
+        0x75, 0x10,                    # ..Report Size (16)                  229
+        0x55, 0xfd,                    # ..Unit Exponent (237)               231
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           233
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             236
+        0x55, 0x00,                    # ..Unit Exponent (0)                 238
+        0x65, 0x00,                    # ..Unit (None)                       240
+        0x09, 0x5b,                    # ..Usage (Vendor Usage 0x5b)         242
+        0x25, 0x7f,                    # ..Logical Maximum (127)             244
+        0x75, 0x08,                    # ..Report Size (8)                   246
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             248
+        0x09, 0x5e,                    # ..Usage (Vendor Usage 0x5e)         250
+        0x26, 0x10, 0x27,              # ..Logical Maximum (10000)           252
+        0x75, 0x10,                    # ..Report Size (16)                  255
+        0x55, 0xfd,                    # ..Unit Exponent (237)               257
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           259
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             262
+        0x55, 0x00,                    # ..Unit Exponent (0)                 264
+        0x65, 0x00,                    # ..Unit (None)                       266
+        0x09, 0x5d,                    # ..Usage (Vendor Usage 0x5d)         268
+        0x25, 0x7f,                    # ..Logical Maximum (127)             270
+        0x75, 0x08,                    # ..Report Size (8)                   272
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             274
+        0xc0,                          # .End Collection                     276
+        0x09, 0x73,                    # .Usage (Vendor Usage 0x73)          277
+        0xa1, 0x02,                    # .Collection (Logical)               279
+        0x85, 0x0d,                    # ..Report ID (13)                    281
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         283
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             285
+        0x45, 0x00,                    # ..Physical Maximum (0)              288
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             290
+        0x09, 0x70,                    # ..Usage (Vendor Usage 0x70)         292
+        0x15, 0x81,                    # ..Logical Minimum (-127)            294
+        0x25, 0x7f,                    # ..Logical Maximum (127)             296
+        0x36, 0xf0, 0xd8,              # ..Physical Minimum (-10000)         298
+        0x46, 0x10, 0x27,              # ..Physical Maximum (10000)          301
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             304
+        0xc0,                          # .End Collection                     306
+        0x09, 0x6e,                    # .Usage (Vendor Usage 0x6e)          307
+        0xa1, 0x02,                    # .Collection (Logical)               309
+        0x85, 0x0e,                    # ..Report ID (14)                    311
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         313
+        0x15, 0x00,                    # ..Logical Minimum (0)               315
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             317
+        0x35, 0x00,                    # ..Physical Minimum (0)              320
+        0x45, 0x00,                    # ..Physical Maximum (0)              322
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             324
+        0x09, 0x70,                    # ..Usage (Vendor Usage 0x70)         326
+        0x25, 0x7f,                    # ..Logical Maximum (127)             328
+        0x46, 0x10, 0x27,              # ..Physical Maximum (10000)          330
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             333
+        0x09, 0x6f,                    # ..Usage (Vendor Usage 0x6f)         335
+        0x15, 0x81,                    # ..Logical Minimum (-127)            337
+        0x36, 0xf0, 0xd8,              # ..Physical Minimum (-10000)         339
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             342
+        0x09, 0x71,                    # ..Usage (Vendor Usage 0x71)         344
+        0x15, 0x00,                    # ..Logical Minimum (0)               346
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             348
+        0x35, 0x00,                    # ..Physical Minimum (0)              351
+        0x46, 0x68, 0x01,              # ..Physical Maximum (360)            353
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             356
+        0x09, 0x72,                    # ..Usage (Vendor Usage 0x72)         358
+        0x75, 0x10,                    # ..Report Size (16)                  360
+        0x26, 0x10, 0x27,              # ..Logical Maximum (10000)           362
+        0x46, 0x10, 0x27,              # ..Physical Maximum (10000)          365
+        0x55, 0xfd,                    # ..Unit Exponent (237)               368
+        0x66, 0x01, 0x10,              # ..Unit (Seconds,SILinear)           370
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             373
+        0x55, 0x00,                    # ..Unit Exponent (0)                 375
+        0x65, 0x00,                    # ..Unit (None)                       377
+        0xc0,                          # .End Collection                     379
+        0x09, 0x77,                    # .Usage (Vendor Usage 0x77)          380
+        0xa1, 0x02,                    # .Collection (Logical)               382
+        0x85, 0x51,                    # ..Report ID (81)                    384
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         386
+        0x25, 0x7f,                    # ..Logical Maximum (127)             388
+        0x45, 0x00,                    # ..Physical Maximum (0)              390
+        0x75, 0x08,                    # ..Report Size (8)                   392
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             394
+        0x09, 0x78,                    # ..Usage (Vendor Usage 0x78)         396
+        0xa1, 0x02,                    # ..Collection (Logical)              398
+        0x09, 0x7b,                    # ...Usage (Vendor Usage 0x7b)        400
+        0x09, 0x79,                    # ...Usage (Vendor Usage 0x79)        402
+        0x09, 0x7a,                    # ...Usage (Vendor Usage 0x7a)        404
+        0x15, 0x01,                    # ...Logical Minimum (1)              406
+        0x25, 0x03,                    # ...Logical Maximum (3)              408
+        0x91, 0x00,                    # ...Output (Data,Arr,Abs)            410
+        0xc0,                          # ..End Collection                    412
+        0x09, 0x7c,                    # ..Usage (Vendor Usage 0x7c)         413
+        0x15, 0x00,                    # ..Logical Minimum (0)               415
+        0x26, 0xfe, 0x00,              # ..Logical Maximum (254)             417
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             420
+        0xc0,                          # .End Collection                     422
+        0x09, 0x92,                    # .Usage (Vendor Usage 0x92)          423
+        0xa1, 0x02,                    # .Collection (Logical)               425
+        0x85, 0x52,                    # ..Report ID (82)                    427
+        0x09, 0x96,                    # ..Usage (Vendor Usage 0x96)         429
+        0xa1, 0x02,                    # ..Collection (Logical)              431
+        0x09, 0x9a,                    # ...Usage (Vendor Usage 0x9a)        433
+        0x09, 0x99,                    # ...Usage (Vendor Usage 0x99)        435
+        0x09, 0x97,                    # ...Usage (Vendor Usage 0x97)        437
+        0x09, 0x98,                    # ...Usage (Vendor Usage 0x98)        439
+        0x09, 0x9b,                    # ...Usage (Vendor Usage 0x9b)        441
+        0x09, 0x9c,                    # ...Usage (Vendor Usage 0x9c)        443
+        0x15, 0x01,                    # ...Logical Minimum (1)              445
+        0x25, 0x06,                    # ...Logical Maximum (6)              447
+        0x91, 0x00,                    # ...Output (Data,Arr,Abs)            449
+        0xc0,                          # ..End Collection                    451
+        0xc0,                          # .End Collection                     452
+        0x05, 0xff,                    # .Usage Page (Vendor Usage Page 0xff) 453
+        0x0a, 0x01, 0x03,              # .Usage (Vendor Usage 0x301)         455
+        0xa1, 0x02,                    # .Collection (Logical)               458
+        0x85, 0x40,                    # ..Report ID (64)                    460
+        0x0a, 0x02, 0x03,              # ..Usage (Vendor Usage 0x302)        462
+        0xa1, 0x02,                    # ..Collection (Logical)              465
+        0x1a, 0x11, 0x03,              # ...Usage Minimum (785)              467
+        0x2a, 0x20, 0x03,              # ...Usage Maximum (800)              470
+        0x25, 0x10,                    # ...Logical Maximum (16)             473
+        0x91, 0x00,                    # ...Output (Data,Arr,Abs)            475
+        0xc0,                          # ..End Collection                    477
+        0x0a, 0x03, 0x03,              # ..Usage (Vendor Usage 0x303)        478
+        0x15, 0x00,                    # ..Logical Minimum (0)               481
+        0x27, 0xff, 0xff, 0x00, 0x00,  # ..Logical Maximum (65535)           483
+        0x75, 0x10,                    # ..Report Size (16)                  488
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             490
+        0xc0,                          # .End Collection                     492
+        0x05, 0x0f,                    # .Usage Page (Vendor Usage Page 0x0f) 493
+        0x09, 0x7d,                    # .Usage (Vendor Usage 0x7d)          495
+        0xa1, 0x02,                    # .Collection (Logical)               497
+        0x85, 0x43,                    # ..Report ID (67)                    499
+        0x09, 0x7e,                    # ..Usage (Vendor Usage 0x7e)         501
+        0x26, 0x80, 0x00,              # ..Logical Maximum (128)             503
+        0x46, 0x10, 0x27,              # ..Physical Maximum (10000)          506
+        0x75, 0x08,                    # ..Report Size (8)                   509
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             511
+        0xc0,                          # .End Collection                     513
+        0x09, 0x7f,                    # .Usage (Vendor Usage 0x7f)          514
+        0xa1, 0x02,                    # .Collection (Logical)               516
+        0x85, 0x0b,                    # ..Report ID (11)                    518
+        0x09, 0x80,                    # ..Usage (Vendor Usage 0x80)         520
+        0x26, 0xff, 0x7f,              # ..Logical Maximum (32767)           522
+        0x45, 0x00,                    # ..Physical Maximum (0)              525
+        0x75, 0x0f,                    # ..Report Size (15)                  527
+        0xb1, 0x03,                    # ..Feature (Cnst,Var,Abs)            529
+        0x09, 0xa9,                    # ..Usage (Vendor Usage 0xa9)         531
+        0x25, 0x01,                    # ..Logical Maximum (1)               533
+        0x75, 0x01,                    # ..Report Size (1)                   535
+        0xb1, 0x03,                    # ..Feature (Cnst,Var,Abs)            537
+        0x09, 0x83,                    # ..Usage (Vendor Usage 0x83)         539
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             541
+        0x75, 0x08,                    # ..Report Size (8)                   544
+        0xb1, 0x03,                    # ..Feature (Cnst,Var,Abs)            546
+        0xc0,                          # .End Collection                     548
+        0x09, 0xab,                    # .Usage (Vendor Usage 0xab)          549
+        0xa1, 0x03,                    # .Collection (Report)                551
+        0x85, 0x15,                    # ..Report ID (21)                    553
+        0x09, 0x25,                    # ..Usage (Vendor Usage 0x25)         555
+        0xa1, 0x02,                    # ..Collection (Logical)              557
+        0x09, 0x26,                    # ...Usage (Vendor Usage 0x26)        559
+        0x09, 0x30,                    # ...Usage (Vendor Usage 0x30)        561
+        0x09, 0x32,                    # ...Usage (Vendor Usage 0x32)        563
+        0x09, 0x31,                    # ...Usage (Vendor Usage 0x31)        565
+        0x09, 0x33,                    # ...Usage (Vendor Usage 0x33)        567
+        0x09, 0x34,                    # ...Usage (Vendor Usage 0x34)        569
+        0x15, 0x01,                    # ...Logical Minimum (1)              571
+        0x25, 0x06,                    # ...Logical Maximum (6)              573
+        0xb1, 0x00,                    # ...Feature (Data,Arr,Abs)           575
+        0xc0,                          # ..End Collection                    577
+        0xc0,                          # .End Collection                     578
+        0x09, 0x89,                    # .Usage (Vendor Usage 0x89)          579
+        0xa1, 0x03,                    # .Collection (Report)                581
+        0x85, 0x16,                    # ..Report ID (22)                    583
+        0x09, 0x8b,                    # ..Usage (Vendor Usage 0x8b)         585
+        0xa1, 0x02,                    # ..Collection (Logical)              587
+        0x09, 0x8c,                    # ...Usage (Vendor Usage 0x8c)        589
+        0x09, 0x8d,                    # ...Usage (Vendor Usage 0x8d)        591
+        0x09, 0x8e,                    # ...Usage (Vendor Usage 0x8e)        593
+        0x25, 0x03,                    # ...Logical Maximum (3)              595
+        0xb1, 0x00,                    # ...Feature (Data,Arr,Abs)           597
+        0xc0,                          # ..End Collection                    599
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         600
+        0x15, 0x00,                    # ..Logical Minimum (0)               602
+        0x26, 0xfe, 0x00,              # ..Logical Maximum (254)             604
+        0xb1, 0x02,                    # ..Feature (Data,Var,Abs)            607
+        0xc0,                          # .End Collection                     609
+        0x09, 0x90,                    # .Usage (Vendor Usage 0x90)          610
+        0xa1, 0x03,                    # .Collection (Report)                612
+        0x85, 0x50,                    # ..Report ID (80)                    614
+        0x09, 0x22,                    # ..Usage (Vendor Usage 0x22)         616
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             618
+        0x91, 0x02,                    # ..Output (Data,Var,Abs)             621
+        0xc0,                          # .End Collection                     623
+        0xc0,                          # End Collection                      624
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None):
+        super().__init__(rdesc, name=name, input_info=(BusType.USB, 0x06A3, 0xFF0D))
+        self.buttons = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
+
+
+class AsusGamepad(BaseGamepad):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)        0
+        0x09, 0x05,                    # Usage (Game Pad)                    2
+        0xa1, 0x01,                    # Collection (Application)            4
+        0x85, 0x01,                    # .Report ID (1)                      6
+        0x05, 0x09,                    # .Usage Page (Button)                8
+        0x0a, 0x01, 0x00,              # .Usage (Vendor Usage 0x01)          10
+        0x0a, 0x02, 0x00,              # .Usage (Vendor Usage 0x02)          13
+        0x0a, 0x04, 0x00,              # .Usage (Vendor Usage 0x04)          16
+        0x0a, 0x05, 0x00,              # .Usage (Vendor Usage 0x05)          19
+        0x0a, 0x07, 0x00,              # .Usage (Vendor Usage 0x07)          22
+        0x0a, 0x08, 0x00,              # .Usage (Vendor Usage 0x08)          25
+        0x0a, 0x0e, 0x00,              # .Usage (Vendor Usage 0x0e)          28
+        0x0a, 0x0f, 0x00,              # .Usage (Vendor Usage 0x0f)          31
+        0x0a, 0x0d, 0x00,              # .Usage (Vendor Usage 0x0d)          34
+        0x05, 0x0c,                    # .Usage Page (Consumer Devices)      37
+        0x0a, 0x24, 0x02,              # .Usage (AC Back)                    39
+        0x0a, 0x23, 0x02,              # .Usage (AC Home)                    42
+        0x15, 0x00,                    # .Logical Minimum (0)                45
+        0x25, 0x01,                    # .Logical Maximum (1)                47
+        0x75, 0x01,                    # .Report Size (1)                    49
+        0x95, 0x0b,                    # .Report Count (11)                  51
+        0x81, 0x02,                    # .Input (Data,Var,Abs)               53
+        0x75, 0x01,                    # .Report Size (1)                    55
+        0x95, 0x01,                    # .Report Count (1)                   57
+        0x81, 0x03,                    # .Input (Cnst,Var,Abs)               59
+        0x05, 0x01,                    # .Usage Page (Generic Desktop)       61
+        0x75, 0x04,                    # .Report Size (4)                    63
+        0x95, 0x01,                    # .Report Count (1)                   65
+        0x25, 0x07,                    # .Logical Maximum (7)                67
+        0x46, 0x3b, 0x01,              # .Physical Maximum (315)             69
+        0x66, 0x14, 0x00,              # .Unit (Degrees,EngRotation)         72
+        0x09, 0x39,                    # .Usage (Hat switch)                 75
+        0x81, 0x42,                    # .Input (Data,Var,Abs,Null)          77
+        0x66, 0x00, 0x00,              # .Unit (None)                        79
+        0x09, 0x01,                    # .Usage (Pointer)                    82
+        0xa1, 0x00,                    # .Collection (Physical)              84
+        0x09, 0x30,                    # ..Usage (X)                         86
+        0x09, 0x31,                    # ..Usage (Y)                         88
+        0x09, 0x32,                    # ..Usage (Z)                         90
+        0x09, 0x35,                    # ..Usage (Rz)                        92
+        0x05, 0x02,                    # ..Usage Page (Simulation Controls)  94
+        0x09, 0xc5,                    # ..Usage (Brake)                     96
+        0x09, 0xc4,                    # ..Usage (Accelerator)               98
+        0x15, 0x00,                    # ..Logical Minimum (0)               100
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             102
+        0x35, 0x00,                    # ..Physical Minimum (0)              105
+        0x46, 0xff, 0x00,              # ..Physical Maximum (255)            107
+        0x75, 0x08,                    # ..Report Size (8)                   110
+        0x95, 0x06,                    # ..Report Count (6)                  112
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              114
+        0xc0,                          # .End Collection                     116
+        0x85, 0x02,                    # .Report ID (2)                      117
+        0x05, 0x08,                    # .Usage Page (LEDs)                  119
+        0x0a, 0x01, 0x00,              # .Usage (Num Lock)                   121
+        0x0a, 0x02, 0x00,              # .Usage (Caps Lock)                  124
+        0x0a, 0x03, 0x00,              # .Usage (Scroll Lock)                127
+        0x0a, 0x04, 0x00,              # .Usage (Compose)                    130
+        0x15, 0x00,                    # .Logical Minimum (0)                133
+        0x25, 0x01,                    # .Logical Maximum (1)                135
+        0x75, 0x01,                    # .Report Size (1)                    137
+        0x95, 0x04,                    # .Report Count (4)                   139
+        0x91, 0x02,                    # .Output (Data,Var,Abs)              141
+        0x75, 0x04,                    # .Report Size (4)                    143
+        0x95, 0x01,                    # .Report Count (1)                   145
+        0x91, 0x03,                    # .Output (Cnst,Var,Abs)              147
+        0xc0,                          # End Collection                      149
+        0x05, 0x0c,                    # Usage Page (Consumer Devices)       150
+        0x09, 0x01,                    # Usage (Consumer Control)            152
+        0xa1, 0x01,                    # Collection (Application)            154
+        0x85, 0x03,                    # .Report ID (3)                      156
+        0x05, 0x01,                    # .Usage Page (Generic Desktop)       158
+        0x09, 0x06,                    # .Usage (Keyboard)                   160
+        0xa1, 0x02,                    # .Collection (Logical)               162
+        0x05, 0x06,                    # ..Usage Page (Generic Device Controls) 164
+        0x09, 0x20,                    # ..Usage (Battery Strength)          166
+        0x15, 0x00,                    # ..Logical Minimum (0)               168
+        0x26, 0xff, 0x00,              # ..Logical Maximum (255)             170
+        0x75, 0x08,                    # ..Report Size (8)                   173
+        0x95, 0x01,                    # ..Report Count (1)                  175
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              177
+        0x06, 0xbc, 0xff,              # ..Usage Page (Vendor Usage Page 0xffbc) 179
+        0x0a, 0xad, 0xbd,              # ..Usage (Vendor Usage 0xbdad)       182
+        0x75, 0x08,                    # ..Report Size (8)                   185
+        0x95, 0x06,                    # ..Report Count (6)                  187
+        0x81, 0x02,                    # ..Input (Data,Var,Abs)              189
+        0xc0,                          # .End Collection                     191
+        0xc0,                          # End Collection                      192
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None):
+        super().__init__(rdesc, name=name, input_info=(BusType.USB, 0x18D1, 0x2C40))
+        self.buttons = (1, 2, 4, 5, 7, 8, 14, 15, 13)
+
+
+class RaptorMach2Joystick(JoystickGamepad):
+    axes_map = {
+        "left_stick": {
+            "x": AxisMapping("x"),
+            "y": AxisMapping("y"),
+        },
+        "right_stick": {
+            "x": AxisMapping("z"),
+            "y": AxisMapping("Rz"),
+        },
+    }
+
+    def __init__(
+        self,
+        name,
+        rdesc=None,
+        application="Joystick",
+        input_info=(BusType.USB, 0x11C0, 0x5606),
+    ):
+        super().__init__(rdesc, application, name, input_info)
+        self.buttons = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
+        self.hat_switch = 240  # null value is 240 as max is 239
+
+    def event(
+        self, *, left=(None, None), right=(None, None), hat_switch=None, buttons=None
+    ):
+        if hat_switch is not None:
+            hat_switch *= 30
+
+        return super().event(
+            left=left, right=right, hat_switch=hat_switch, buttons=buttons
+        )
+
+
+class TestSaitekGamepad(BaseTest.TestGamepad):
+    def create_device(self):
+        return SaitekGamepad()
+
+
+class TestAsusGamepad(BaseTest.TestGamepad):
+    def create_device(self):
+        return AsusGamepad()
+
+
+class TestRaptorMach2Joystick(BaseTest.TestGamepad):
+    hid_bpfs = [HidBpf("FR-TEC__Raptor-Mach-2.bpf.o", True)]
+
+    def create_device(self):
+        return RaptorMach2Joystick(
+            "uhid test Sanmos Group FR-TEC Raptor MACH 2",
+            rdesc="05 01 09 04 a1 01 05 01 85 01 05 01 09 30 75 10 95 01 15 00 26 ff 07 46 ff 07 81 02 05 01 09 31 75 10 95 01 15 00 26 ff 07 46 ff 07 81 02 05 01 09 33 75 10 95 01 15 00 26 ff 03 46 ff 03 81 02 05 00 09 00 75 10 95 01 15 00 26 ff 03 46 ff 03 81 02 05 01 09 32 75 10 95 01 15 00 26 ff 03 46 ff 03 81 02 05 01 09 35 75 10 95 01 15 00 26 ff 03 46 ff 03 81 02 05 01 09 34 75 10 95 01 15 00 26 ff 07 46 ff 07 81 02 05 01 09 36 75 10 95 01 15 00 26 ff 03 46 ff 03 81 02 05 09 19 01 2a 1d 00 15 00 25 01 75 01 96 80 00 81 02 05 01 09 39 26 ef 00 46 68 01 65 14 75 10 95 01 81 42 05 01 09 00 75 08 95 1d 81 01 15 00 26 ef 00 85 58 26 ff 00 46 ff 00 75 08 95 3f 09 00 91 02 85 59 75 08 95 80 09 00 b1 02 c0",
+            input_info=(BusType.USB, 0x11C0, 0x5606),
+        )
diff --git a/tools/testing/selftests/hid/tests/test_hid_core.py b/tools/testing/selftests/hid/tests/test_hid_core.py
new file mode 100644
index 000000000000..9a7fe40020d2
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_hid_core.py
@@ -0,0 +1,154 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# This is for generic devices
+
+from . import base
+import logging
+
+logger = logging.getLogger("hidtools.test.hid")
+
+
+class TestCollectionOverflow(base.BaseTestCase.TestUhid):
+    """
+    Test class to test re-allocation of the HID collection stack in
+    hid-core.c.
+    """
+
+    def create_device(self):
+        # fmt: off
+        report_descriptor = [
+            0x05, 0x01,         # .Usage Page (Generic Desktop)
+            0x09, 0x02,         # .Usage (Mouse)
+            0xa1, 0x01,         # .Collection (Application)
+            0x09, 0x02,         # ..Usage (Mouse)
+            0xa1, 0x02,         # ..Collection (Logical)
+            0x09, 0x01,         # ...Usage (Pointer)
+            0xa1, 0x00,         # ...Collection (Physical)
+            0x05, 0x09,         # ....Usage Page (Button)
+            0x19, 0x01,         # ....Usage Minimum (1)
+            0x29, 0x03,         # ....Usage Maximum (3)
+            0x15, 0x00,         # ....Logical Minimum (0)
+            0x25, 0x01,         # ....Logical Maximum (1)
+            0x75, 0x01,         # ....Report Size (1)
+            0x95, 0x03,         # ....Report Count (3)
+            0x81, 0x02,         # ....Input (Data,Var,Abs)
+            0x75, 0x05,         # ....Report Size (5)
+            0x95, 0x01,         # ....Report Count (1)
+            0x81, 0x03,         # ....Input (Cnst,Var,Abs)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0xa1, 0x02,         # ....Collection (Logical)
+            0x09, 0x01,         # .....Usage (Pointer)
+            0x05, 0x01,         # .....Usage Page (Generic Desktop)
+            0x09, 0x30,         # .....Usage (X)
+            0x09, 0x31,         # .....Usage (Y)
+            0x15, 0x81,         # .....Logical Minimum (-127)
+            0x25, 0x7f,         # .....Logical Maximum (127)
+            0x75, 0x08,         # .....Report Size (8)
+            0x95, 0x02,         # .....Report Count (2)
+            0x81, 0x06,         # .....Input (Data,Var,Rel)
+            0xa1, 0x02,         # ...Collection (Logical)
+            0x85, 0x12,         # ....Report ID (18)
+            0x09, 0x48,         # ....Usage (Resolution Multiplier)
+            0x95, 0x01,         # ....Report Count (1)
+            0x75, 0x02,         # ....Report Size (2)
+            0x15, 0x00,         # ....Logical Minimum (0)
+            0x25, 0x01,         # ....Logical Maximum (1)
+            0x35, 0x01,         # ....Physical Minimum (1)
+            0x45, 0x0c,         # ....Physical Maximum (12)
+            0xb1, 0x02,         # ....Feature (Data,Var,Abs)
+            0x85, 0x1a,         # ....Report ID (26)
+            0x09, 0x38,         # ....Usage (Wheel)
+            0x35, 0x00,         # ....Physical Minimum (0)
+            0x45, 0x00,         # ....Physical Maximum (0)
+            0x95, 0x01,         # ....Report Count (1)
+            0x75, 0x10,         # ....Report Size (16)
+            0x16, 0x01, 0x80,   # ....Logical Minimum (-32767)
+            0x26, 0xff, 0x7f,   # ....Logical Maximum (32767)
+            0x81, 0x06,         # ....Input (Data,Var,Rel)
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ...End Collection
+            0xc0,               # ..End Collection
+            0xc0,               # .End Collection
+        ]
+        # fmt: on
+        return base.UHIDTestDevice(
+            name=None, rdesc=report_descriptor, application="Mouse"
+        )
+
+    def test_rdesc(self):
+        """
+        This test can only check for negatives. If the kernel crashes, you
+        know why. If this test passes, either the bug isn't present or just
+        didn't get triggered. No way to know.
+
+        For an explanation, see kernel patch
+            HID: core: replace the collection tree pointers with indices
+        """
+        pass
diff --git a/tools/testing/selftests/hid/tests/test_ite_keyboard.py b/tools/testing/selftests/hid/tests/test_ite_keyboard.py
new file mode 100644
index 000000000000..f695eaad1648
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_ite_keyboard.py
@@ -0,0 +1,167 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2020 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2020 Red Hat, Inc.
+#
+
+from .test_keyboard import ArrayKeyboard, TestArrayKeyboard
+from hidtools.util import BusType
+
+import libevdev
+import logging
+from . import base
+
+logger = logging.getLogger("hidtools.test.ite-keyboard")
+
+KERNEL_MODULE = base.KernelModule("itetech", "hid_ite")
+
+
+class KbdData(object):
+    pass
+
+
+# The ITE keyboards have an issue regarding the Wifi key:
+# nothing comes in when pressing the key, but we get a null
+# event on the key release.
+# This test covers this case.
+class ITEKeyboard(ArrayKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x06, 0x85, 0xff,              # Usage Page (Vendor Usage Page 0xff85)
+        0x09, 0x95,                    # Usage (Vendor Usage 0x95)           3
+        0xa1, 0x01,                    # Collection (Application)            5
+        0x85, 0x5a,                    # .Report ID (90)                     7
+        0x09, 0x01,                    # .Usage (Vendor Usage 0x01)          9
+        0x15, 0x00,                    # .Logical Minimum (0)                11
+        0x26, 0xff, 0x00,              # .Logical Maximum (255)              13
+        0x75, 0x08,                    # .Report Size (8)                    16
+        0x95, 0x10,                    # .Report Count (16)                  18
+        0xb1, 0x00,                    # .Feature (Data,Arr,Abs)             20
+        0xc0,                          # End Collection                      22
+        0x05, 0x01,                    # Usage Page (Generic Desktop)        23
+        0x09, 0x06,                    # Usage (Keyboard)                    25
+        0xa1, 0x01,                    # Collection (Application)            27
+        0x85, 0x01,                    # .Report ID (1)                      29
+        0x75, 0x01,                    # .Report Size (1)                    31
+        0x95, 0x08,                    # .Report Count (8)                   33
+        0x05, 0x07,                    # .Usage Page (Keyboard)              35
+        0x19, 0xe0,                    # .Usage Minimum (224)                37
+        0x29, 0xe7,                    # .Usage Maximum (231)                39
+        0x15, 0x00,                    # .Logical Minimum (0)                41
+        0x25, 0x01,                    # .Logical Maximum (1)                43
+        0x81, 0x02,                    # .Input (Data,Var,Abs)               45
+        0x95, 0x01,                    # .Report Count (1)                   47
+        0x75, 0x08,                    # .Report Size (8)                    49
+        0x81, 0x03,                    # .Input (Cnst,Var,Abs)               51
+        0x95, 0x05,                    # .Report Count (5)                   53
+        0x75, 0x01,                    # .Report Size (1)                    55
+        0x05, 0x08,                    # .Usage Page (LEDs)                  57
+        0x19, 0x01,                    # .Usage Minimum (1)                  59
+        0x29, 0x05,                    # .Usage Maximum (5)                  61
+        0x91, 0x02,                    # .Output (Data,Var,Abs)              63
+        0x95, 0x01,                    # .Report Count (1)                   65
+        0x75, 0x03,                    # .Report Size (3)                    67
+        0x91, 0x03,                    # .Output (Cnst,Var,Abs)              69
+        0x95, 0x06,                    # .Report Count (6)                   71
+        0x75, 0x08,                    # .Report Size (8)                    73
+        0x15, 0x00,                    # .Logical Minimum (0)                75
+        0x26, 0xff, 0x00,              # .Logical Maximum (255)              77
+        0x05, 0x07,                    # .Usage Page (Keyboard)              80
+        0x19, 0x00,                    # .Usage Minimum (0)                  82
+        0x2a, 0xff, 0x00,              # .Usage Maximum (255)                84
+        0x81, 0x00,                    # .Input (Data,Arr,Abs)               87
+        0xc0,                          # End Collection                      89
+        0x05, 0x0c,                    # Usage Page (Consumer Devices)       90
+        0x09, 0x01,                    # Usage (Consumer Control)            92
+        0xa1, 0x01,                    # Collection (Application)            94
+        0x85, 0x02,                    # .Report ID (2)                      96
+        0x19, 0x00,                    # .Usage Minimum (0)                  98
+        0x2a, 0x3c, 0x02,              # .Usage Maximum (572)                100
+        0x15, 0x00,                    # .Logical Minimum (0)                103
+        0x26, 0x3c, 0x02,              # .Logical Maximum (572)              105
+        0x75, 0x10,                    # .Report Size (16)                   108
+        0x95, 0x01,                    # .Report Count (1)                   110
+        0x81, 0x00,                    # .Input (Data,Arr,Abs)               112
+        0xc0,                          # End Collection                      114
+        0x05, 0x01,                    # Usage Page (Generic Desktop)        115
+        0x09, 0x0c,                    # Usage (Wireless Radio Controls)     117
+        0xa1, 0x01,                    # Collection (Application)            119
+        0x85, 0x03,                    # .Report ID (3)                      121
+        0x15, 0x00,                    # .Logical Minimum (0)                123
+        0x25, 0x01,                    # .Logical Maximum (1)                125
+        0x09, 0xc6,                    # .Usage (Wireless Radio Button)      127
+        0x95, 0x01,                    # .Report Count (1)                   129
+        0x75, 0x01,                    # .Report Size (1)                    131
+        0x81, 0x06,                    # .Input (Data,Var,Rel)               133
+        0x75, 0x07,                    # .Report Size (7)                    135
+        0x81, 0x03,                    # .Input (Cnst,Var,Abs)               137
+        0xc0,                          # End Collection                      139
+        0x05, 0x88,                    # Usage Page (Vendor Usage Page 0x88) 140
+        0x09, 0x01,                    # Usage (Vendor Usage 0x01)           142
+        0xa1, 0x01,                    # Collection (Application)            144
+        0x85, 0x04,                    # .Report ID (4)                      146
+        0x19, 0x00,                    # .Usage Minimum (0)                  148
+        0x2a, 0xff, 0xff,              # .Usage Maximum (65535)              150
+        0x15, 0x00,                    # .Logical Minimum (0)                153
+        0x26, 0xff, 0xff,              # .Logical Maximum (65535)            155
+        0x75, 0x08,                    # .Report Size (8)                    158
+        0x95, 0x02,                    # .Report Count (2)                   160
+        0x81, 0x02,                    # .Input (Data,Var,Abs)               162
+        0xc0,                          # End Collection                      164
+        0x05, 0x01,                    # Usage Page (Generic Desktop)        165
+        0x09, 0x80,                    # Usage (System Control)              167
+        0xa1, 0x01,                    # Collection (Application)            169
+        0x85, 0x05,                    # .Report ID (5)                      171
+        0x19, 0x81,                    # .Usage Minimum (129)                173
+        0x29, 0x83,                    # .Usage Maximum (131)                175
+        0x15, 0x00,                    # .Logical Minimum (0)                177
+        0x25, 0x01,                    # .Logical Maximum (1)                179
+        0x95, 0x08,                    # .Report Count (8)                   181
+        0x75, 0x01,                    # .Report Size (1)                    183
+        0x81, 0x02,                    # .Input (Data,Var,Abs)               185
+        0xc0,                          # End Collection                      187
+    ]
+    # fmt: on
+
+    def __init__(
+        self,
+        rdesc=report_descriptor,
+        name=None,
+        input_info=(BusType.USB, 0x06CB, 0x2968),
+    ):
+        super().__init__(rdesc, name, input_info)
+
+    def event(self, keys, reportID=None, application=None):
+        application = application or "Keyboard"
+        return super().event(keys, reportID, application)
+
+
+class TestITEKeyboard(TestArrayKeyboard):
+    kernel_modules = [KERNEL_MODULE]
+
+    def create_device(self):
+        return ITEKeyboard()
+
+    def test_wifi_key(self):
+        uhdev = self.uhdev
+        syn_event = self.syn_event
+
+        # the following sends a 'release' event on the Wifi key.
+        # the kernel is supposed to translate this into Wifi key
+        # down and up
+        r = [0x03, 0x00]
+        uhdev.call_input_event(r)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_RFKILL, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports([r], uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_RFKILL, 0))
+        # the kernel sends the two down/up key events in a batch, no need to
+        # call events = uhdev.next_sync_events()
+        self.debug_reports([], uhdev, events)
+        self.assertInputEventsIn(expected, events)
diff --git a/tools/testing/selftests/hid/tests/test_keyboard.py b/tools/testing/selftests/hid/tests/test_keyboard.py
new file mode 100644
index 000000000000..b3b2bdbf63b7
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_keyboard.py
@@ -0,0 +1,485 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2018 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2018 Red Hat, Inc.
+#
+
+from . import base
+import hidtools.hid
+import libevdev
+import logging
+
+logger = logging.getLogger("hidtools.test.keyboard")
+
+
+class InvalidHIDCommunication(Exception):
+    pass
+
+
+class KeyboardData(object):
+    pass
+
+
+class BaseKeyboard(base.UHIDTestDevice):
+    def __init__(self, rdesc, name=None, input_info=None):
+        assert rdesc is not None
+        super().__init__(name, "Key", input_info=input_info, rdesc=rdesc)
+        self.keystates = {}
+
+    def _update_key_state(self, keys):
+        """
+        Update the internal state of keys with the new state given.
+
+        :param key: a tuple of chars for the currently pressed keys.
+        """
+        # First remove the already released keys
+        unused_keys = [k for k, v in self.keystates.items() if not v]
+        for key in unused_keys:
+            del self.keystates[key]
+
+        # self.keystates contains now the list of currently pressed keys,
+        # release them...
+        for key in self.keystates.keys():
+            self.keystates[key] = False
+
+        # ...and press those that are in parameter
+        for key in keys:
+            self.keystates[key] = True
+
+    def _create_report_data(self):
+        keyboard = KeyboardData()
+        for key, value in self.keystates.items():
+            key = key.replace(" ", "").lower()
+            setattr(keyboard, key, value)
+        return keyboard
+
+    def create_array_report(self, keys, reportID=None, application=None):
+        """
+        Return an input report for this device.
+
+        :param keys: a tuple of chars for the pressed keys. The class maintains
+            the list of currently pressed keys, so to release a key, the caller
+            needs to call again this function without the key in this tuple.
+        :param reportID: the numeric report ID for this report, if needed
+        """
+        self._update_key_state(keys)
+        reportID = reportID or self.default_reportID
+
+        keyboard = self._create_report_data()
+        return self.create_report(keyboard, reportID=reportID, application=application)
+
+    def event(self, keys, reportID=None, application=None):
+        """
+        Send an input event on the default report ID.
+
+        :param keys: a tuple of chars for the pressed keys. The class maintains
+            the list of currently pressed keys, so to release a key, the caller
+            needs to call again this function without the key in this tuple.
+        """
+        r = self.create_array_report(keys, reportID, application)
+        self.call_input_event(r)
+        return [r]
+
+
+class PlainKeyboard(BaseKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)
+        0x09, 0x06,                    # Usage (Keyboard)
+        0xa1, 0x01,                    # Collection (Application)
+        0x85, 0x01,                    # .Report ID (1)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0xe0,                    # .Usage Minimum (224)
+        0x29, 0xe7,                    # .Usage Maximum (231)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x25, 0x01,                    # .Logical Maximum (1)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x08,                    # .Report Count (8)
+        0x81, 0x02,                    # .Input (Data,Var,Abs)
+        0x19, 0x00,                    # .Usage Minimum (0)
+        0x29, 0x97,                    # .Usage Maximum (151)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x25, 0x01,                    # .Logical Maximum (1)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x98,                    # .Report Count (152)
+        0x81, 0x02,                    # .Input (Data,Var,Abs)
+        0xc0,                          # End Collection
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+        self.default_reportID = 1
+
+
+class ArrayKeyboard(BaseKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)
+        0x09, 0x06,                    # Usage (Keyboard)
+        0xa1, 0x01,                    # Collection (Application)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0xe0,                    # .Usage Minimum (224)
+        0x29, 0xe7,                    # .Usage Maximum (231)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x25, 0x01,                    # .Logical Maximum (1)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x08,                    # .Report Count (8)
+        0x81, 0x02,                    # .Input (Data,Var,Abs)
+        0x95, 0x06,                    # .Report Count (6)
+        0x75, 0x08,                    # .Report Size (8)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x26, 0xa4, 0x00,              # .Logical Maximum (164)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0x00,                    # .Usage Minimum (0)
+        0x29, 0xa4,                    # .Usage Maximum (164)
+        0x81, 0x00,                    # .Input (Data,Arr,Abs)
+        0xc0,                          # End Collection
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+
+    def _create_report_data(self):
+        data = KeyboardData()
+        array = []
+
+        hut = hidtools.hut.HUT
+
+        # strip modifiers from the array
+        for k, v in self.keystates.items():
+            # we ignore depressed keys
+            if not v:
+                continue
+
+            usage = hut[0x07].from_name[k].usage
+            if usage >= 224 and usage <= 231:
+                # modifier
+                setattr(data, k.lower(), 1)
+            else:
+                array.append(k)
+
+        # if array length is bigger than 6, report ErrorRollOver
+        if len(array) > 6:
+            array = ["ErrorRollOver"] * 6
+
+        data.keyboard = array
+        return data
+
+
+class LEDKeyboard(ArrayKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)
+        0x09, 0x06,                    # Usage (Keyboard)
+        0xa1, 0x01,                    # Collection (Application)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0xe0,                    # .Usage Minimum (224)
+        0x29, 0xe7,                    # .Usage Maximum (231)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x25, 0x01,                    # .Logical Maximum (1)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x08,                    # .Report Count (8)
+        0x81, 0x02,                    # .Input (Data,Var,Abs)
+        0x95, 0x01,                    # .Report Count (1)
+        0x75, 0x08,                    # .Report Size (8)
+        0x81, 0x01,                    # .Input (Cnst,Arr,Abs)
+        0x95, 0x05,                    # .Report Count (5)
+        0x75, 0x01,                    # .Report Size (1)
+        0x05, 0x08,                    # .Usage Page (LEDs)
+        0x19, 0x01,                    # .Usage Minimum (1)
+        0x29, 0x05,                    # .Usage Maximum (5)
+        0x91, 0x02,                    # .Output (Data,Var,Abs)
+        0x95, 0x01,                    # .Report Count (1)
+        0x75, 0x03,                    # .Report Size (3)
+        0x91, 0x01,                    # .Output (Cnst,Arr,Abs)
+        0x95, 0x06,                    # .Report Count (6)
+        0x75, 0x08,                    # .Report Size (8)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x26, 0xa4, 0x00,              # .Logical Maximum (164)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0x00,                    # .Usage Minimum (0)
+        0x29, 0xa4,                    # .Usage Maximum (164)
+        0x81, 0x00,                    # .Input (Data,Arr,Abs)
+        0xc0,                          # End Collection
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+
+
+# Some Primax manufactured keyboards set the Usage Page after having defined
+# some local Usages. It relies on the fact that the specification states that
+# Usages are to be concatenated with Usage Pages upon finding a Main item (see
+# 6.2.2.8). This test covers this case.
+class PrimaxKeyboard(ArrayKeyboard):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,                    # Usage Page (Generic Desktop)
+        0x09, 0x06,                    # Usage (Keyboard)
+        0xA1, 0x01,                    # Collection (Application)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x19, 0xE0,                    # .Usage Minimum (224)
+        0x29, 0xE7,                    # .Usage Maximum (231)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x25, 0x01,                    # .Logical Maximum (1)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x08,                    # .Report Count (8)
+        0x81, 0x02,                    # .Input (Data,Var,Abs)
+        0x75, 0x08,                    # .Report Size (8)
+        0x95, 0x01,                    # .Report Count (1)
+        0x81, 0x01,                    # .Input (Data,Var,Abs)
+        0x05, 0x08,                    # .Usage Page (LEDs)
+        0x19, 0x01,                    # .Usage Minimum (1)
+        0x29, 0x03,                    # .Usage Maximum (3)
+        0x75, 0x01,                    # .Report Size (1)
+        0x95, 0x03,                    # .Report Count (3)
+        0x91, 0x02,                    # .Output (Data,Var,Abs)
+        0x95, 0x01,                    # .Report Count (1)
+        0x75, 0x05,                    # .Report Size (5)
+        0x91, 0x01,                    # .Output (Constant)
+        0x15, 0x00,                    # .Logical Minimum (0)
+        0x26, 0xFF, 0x00,              # .Logical Maximum (255)
+        0x19, 0x00,                    # .Usage Minimum (0)
+        0x2A, 0xFF, 0x00,              # .Usage Maximum (255)
+        0x05, 0x07,                    # .Usage Page (Keyboard)
+        0x75, 0x08,                    # .Report Size (8)
+        0x95, 0x06,                    # .Report Count (6)
+        0x81, 0x00,                    # .Input (Data,Arr,Abs)
+        0xC0,                          # End Collection
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+
+
+class BaseTest:
+    class TestKeyboard(base.BaseTestCase.TestUhid):
+        def test_single_key(self):
+            """check for key reliability."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            syn_event = self.syn_event
+
+            r = uhdev.event(["a and A"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_A, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_A] == 1
+
+            r = uhdev.event([])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_A, 0))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_A] == 0
+
+        def test_two_keys(self):
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            syn_event = self.syn_event
+
+            r = uhdev.event(["a and A", "q and Q"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_A, 1))
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_Q, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_A] == 1
+
+            r = uhdev.event([])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_A, 0))
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_Q, 0))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_A] == 0
+            assert evdev.value[libevdev.EV_KEY.KEY_Q] == 0
+
+            r = uhdev.event(["c and C"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_C, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_C] == 1
+
+            r = uhdev.event(["c and C", "Spacebar"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_SPACE, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.KEY_C) not in events
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_C] == 1
+            assert evdev.value[libevdev.EV_KEY.KEY_SPACE] == 1
+
+            r = uhdev.event(["Spacebar"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_C, 0))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.KEY_SPACE) not in events
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_C] == 0
+            assert evdev.value[libevdev.EV_KEY.KEY_SPACE] == 1
+
+            r = uhdev.event([])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_SPACE, 0))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+            assert evdev.value[libevdev.EV_KEY.KEY_SPACE] == 0
+
+        def test_modifiers(self):
+            # ctrl-alt-del would be very nice :)
+            uhdev = self.uhdev
+            syn_event = self.syn_event
+
+            r = uhdev.event(["LeftControl", "LeftShift", "= and +"])
+            expected = [syn_event]
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_LEFTCTRL, 1))
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_LEFTSHIFT, 1))
+            expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_EQUAL, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(expected, events)
+
+
+class TestPlainKeyboard(BaseTest.TestKeyboard):
+    def create_device(self):
+        return PlainKeyboard()
+
+    def test_10_keys(self):
+        uhdev = self.uhdev
+        syn_event = self.syn_event
+
+        r = uhdev.event(
+            [
+                "1 and !",
+                "2 and @",
+                "3 and #",
+                "4 and $",
+                "5 and %",
+                "6 and ^",
+                "7 and &",
+                "8 and *",
+                "9 and (",
+                "0 and )",
+            ]
+        )
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_0, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_1, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_2, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_3, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_4, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_5, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_6, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_7, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_8, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_9, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_0, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_1, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_2, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_3, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_4, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_5, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_6, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_7, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_8, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_9, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+
+class TestArrayKeyboard(BaseTest.TestKeyboard):
+    def create_device(self):
+        return ArrayKeyboard()
+
+    def test_10_keys(self):
+        uhdev = self.uhdev
+        syn_event = self.syn_event
+
+        r = uhdev.event(
+            [
+                "1 and !",
+                "2 and @",
+                "3 and #",
+                "4 and $",
+                "5 and %",
+                "6 and ^",
+            ]
+        )
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_1, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_2, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_3, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_4, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_5, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_6, 1))
+        events = uhdev.next_sync_events()
+
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+        # ErrRollOver
+        r = uhdev.event(
+            [
+                "1 and !",
+                "2 and @",
+                "3 and #",
+                "4 and $",
+                "5 and %",
+                "6 and ^",
+                "7 and &",
+                "8 and *",
+                "9 and (",
+                "0 and )",
+            ]
+        )
+        events = uhdev.next_sync_events()
+
+        self.debug_reports(r, uhdev, events)
+
+        assert len(events) == 0
+
+        r = uhdev.event([])
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_1, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_2, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_3, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_4, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_5, 0))
+        expected.append(libevdev.InputEvent(libevdev.EV_KEY.KEY_6, 0))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEventsIn(expected, events)
+
+
+class TestLEDKeyboard(BaseTest.TestKeyboard):
+    def create_device(self):
+        return LEDKeyboard()
+
+
+class TestPrimaxKeyboard(BaseTest.TestKeyboard):
+    def create_device(self):
+        return PrimaxKeyboard()
diff --git a/tools/testing/selftests/hid/tests/test_mouse.py b/tools/testing/selftests/hid/tests/test_mouse.py
new file mode 100644
index 000000000000..eb4e15a0e53b
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_mouse.py
@@ -0,0 +1,1047 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+#
+
+from . import base
+import hidtools.hid
+from hidtools.util import BusType
+import libevdev
+import logging
+import pytest
+
+logger = logging.getLogger("hidtools.test.mouse")
+
+# workaround https://gitlab.freedesktop.org/libevdev/python-libevdev/issues/6
+try:
+    libevdev.EV_REL.REL_WHEEL_HI_RES
+except AttributeError:
+    libevdev.EV_REL.REL_WHEEL_HI_RES = libevdev.EV_REL.REL_0B
+    libevdev.EV_REL.REL_HWHEEL_HI_RES = libevdev.EV_REL.REL_0C
+
+
+class InvalidHIDCommunication(Exception):
+    pass
+
+
+class MouseData(object):
+    pass
+
+
+class BaseMouse(base.UHIDTestDevice):
+    def __init__(self, rdesc, name=None, input_info=None):
+        assert rdesc is not None
+        super().__init__(name, "Mouse", input_info=input_info, rdesc=rdesc)
+        self.left = False
+        self.right = False
+        self.middle = False
+
+    def create_report(self, x, y, buttons=None, wheels=None, reportID=None):
+        """
+        Return an input report for this device.
+
+        :param x: relative x
+        :param y: relative y
+        :param buttons: a (l, r, m) tuple of bools for the button states,
+            where ``None`` is "leave unchanged"
+        :param wheels: a single value for the vertical wheel or a (vertical, horizontal) tuple for
+            the two wheels
+        :param reportID: the numeric report ID for this report, if needed
+        """
+        if buttons is not None:
+            left, right, middle = buttons
+            if left is not None:
+                self.left = left
+            if right is not None:
+                self.right = right
+            if middle is not None:
+                self.middle = middle
+        left = self.left
+        right = self.right
+        middle = self.middle
+        # Note: the BaseMouse doesn't actually have a wheel but the
+        # create_report magic only fills in those fields exist, so let's
+        # make this generic here.
+        wheel, acpan = 0, 0
+        if wheels is not None:
+            if isinstance(wheels, tuple):
+                wheel = wheels[0]
+                acpan = wheels[1]
+            else:
+                wheel = wheels
+
+        reportID = reportID or self.default_reportID
+
+        mouse = MouseData()
+        mouse.b1 = int(left)
+        mouse.b2 = int(right)
+        mouse.b3 = int(middle)
+        mouse.x = x
+        mouse.y = y
+        mouse.wheel = wheel
+        mouse.acpan = acpan
+        return super().create_report(mouse, reportID=reportID)
+
+    def event(self, x, y, buttons=None, wheels=None):
+        """
+        Send an input event on the default report ID.
+
+        :param x: relative x
+        :param y: relative y
+        :param buttons: a (l, r, m) tuple of bools for the button states,
+            where ``None`` is "leave unchanged"
+        :param wheels: a single value for the vertical wheel or a (vertical, horizontal) tuple for
+            the two wheels
+        """
+        r = self.create_report(x, y, buttons, wheels)
+        self.call_input_event(r)
+        return [r]
+
+
+class ButtonMouse(BaseMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,  # .Usage Page (Generic Desktop)        0
+        0x09, 0x02,  # .Usage (Mouse)                       2
+        0xa1, 0x01,  # .Collection (Application)            4
+        0x09, 0x02,  # ..Usage (Mouse)                      6
+        0xa1, 0x02,  # ..Collection (Logical)               8
+        0x09, 0x01,  # ...Usage (Pointer)                   10
+        0xa1, 0x00,  # ...Collection (Physical)             12
+        0x05, 0x09,  # ....Usage Page (Button)              14
+        0x19, 0x01,  # ....Usage Minimum (1)                16
+        0x29, 0x03,  # ....Usage Maximum (3)                18
+        0x15, 0x00,  # ....Logical Minimum (0)              20
+        0x25, 0x01,  # ....Logical Maximum (1)              22
+        0x75, 0x01,  # ....Report Size (1)                  24
+        0x95, 0x03,  # ....Report Count (3)                 26
+        0x81, 0x02,  # ....Input (Data,Var,Abs)             28
+        0x75, 0x05,  # ....Report Size (5)                  30
+        0x95, 0x01,  # ....Report Count (1)                 32
+        0x81, 0x03,  # ....Input (Cnst,Var,Abs)             34
+        0x05, 0x01,  # ....Usage Page (Generic Desktop)     36
+        0x09, 0x30,  # ....Usage (X)                        38
+        0x09, 0x31,  # ....Usage (Y)                        40
+        0x15, 0x81,  # ....Logical Minimum (-127)           42
+        0x25, 0x7f,  # ....Logical Maximum (127)            44
+        0x75, 0x08,  # ....Report Size (8)                  46
+        0x95, 0x02,  # ....Report Count (2)                 48
+        0x81, 0x06,  # ....Input (Data,Var,Rel)             50
+        0xc0,        # ...End Collection                    52
+        0xc0,        # ..End Collection                     53
+        0xc0,        # .End Collection                      54
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+
+    def fake_report(self, x, y, buttons):
+        if buttons is not None:
+            left, right, middle = buttons
+            if left is None:
+                left = self.left
+            if right is None:
+                right = self.right
+            if middle is None:
+                middle = self.middle
+        else:
+            left = self.left
+            right = self.right
+            middle = self.middle
+
+        button_mask = sum(1 << i for i, b in enumerate([left, right, middle]) if b)
+        x = max(-127, min(127, x))
+        y = max(-127, min(127, y))
+        x = hidtools.util.to_twos_comp(x, 8)
+        y = hidtools.util.to_twos_comp(y, 8)
+        return [button_mask, x, y]
+
+
+class WheelMouse(ButtonMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,  # Usage Page (Generic Desktop)        0
+        0x09, 0x02,  # Usage (Mouse)                       2
+        0xa1, 0x01,  # Collection (Application)            4
+        0x05, 0x09,  # .Usage Page (Button)                6
+        0x19, 0x01,  # .Usage Minimum (1)                  8
+        0x29, 0x03,  # .Usage Maximum (3)                  10
+        0x15, 0x00,  # .Logical Minimum (0)                12
+        0x25, 0x01,  # .Logical Maximum (1)                14
+        0x95, 0x03,  # .Report Count (3)                   16
+        0x75, 0x01,  # .Report Size (1)                    18
+        0x81, 0x02,  # .Input (Data,Var,Abs)               20
+        0x95, 0x01,  # .Report Count (1)                   22
+        0x75, 0x05,  # .Report Size (5)                    24
+        0x81, 0x03,  # .Input (Cnst,Var,Abs)               26
+        0x05, 0x01,  # .Usage Page (Generic Desktop)       28
+        0x09, 0x01,  # .Usage (Pointer)                    30
+        0xa1, 0x00,  # .Collection (Physical)              32
+        0x09, 0x30,  # ..Usage (X)                         34
+        0x09, 0x31,  # ..Usage (Y)                         36
+        0x15, 0x81,  # ..Logical Minimum (-127)            38
+        0x25, 0x7f,  # ..Logical Maximum (127)             40
+        0x75, 0x08,  # ..Report Size (8)                   42
+        0x95, 0x02,  # ..Report Count (2)                  44
+        0x81, 0x06,  # ..Input (Data,Var,Rel)              46
+        0xc0,        # .End Collection                     48
+        0x09, 0x38,  # .Usage (Wheel)                      49
+        0x15, 0x81,  # .Logical Minimum (-127)             51
+        0x25, 0x7f,  # .Logical Maximum (127)              53
+        0x75, 0x08,  # .Report Size (8)                    55
+        0x95, 0x01,  # .Report Count (1)                   57
+        0x81, 0x06,  # .Input (Data,Var,Rel)               59
+        0xc0,        # End Collection                      61
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+        self.wheel_multiplier = 1
+
+
+class TwoWheelMouse(WheelMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,        # Usage Page (Generic Desktop)        0
+        0x09, 0x02,        # Usage (Mouse)                       2
+        0xa1, 0x01,        # Collection (Application)            4
+        0x09, 0x01,        # .Usage (Pointer)                    6
+        0xa1, 0x00,        # .Collection (Physical)              8
+        0x05, 0x09,        # ..Usage Page (Button)               10
+        0x19, 0x01,        # ..Usage Minimum (1)                 12
+        0x29, 0x10,        # ..Usage Maximum (16)                14
+        0x15, 0x00,        # ..Logical Minimum (0)               16
+        0x25, 0x01,        # ..Logical Maximum (1)               18
+        0x95, 0x10,        # ..Report Count (16)                 20
+        0x75, 0x01,        # ..Report Size (1)                   22
+        0x81, 0x02,        # ..Input (Data,Var,Abs)              24
+        0x05, 0x01,        # ..Usage Page (Generic Desktop)      26
+        0x16, 0x01, 0x80,  # ..Logical Minimum (-32767)          28
+        0x26, 0xff, 0x7f,  # ..Logical Maximum (32767)           31
+        0x75, 0x10,        # ..Report Size (16)                  34
+        0x95, 0x02,        # ..Report Count (2)                  36
+        0x09, 0x30,        # ..Usage (X)                         38
+        0x09, 0x31,        # ..Usage (Y)                         40
+        0x81, 0x06,        # ..Input (Data,Var,Rel)              42
+        0x15, 0x81,        # ..Logical Minimum (-127)            44
+        0x25, 0x7f,        # ..Logical Maximum (127)             46
+        0x75, 0x08,        # ..Report Size (8)                   48
+        0x95, 0x01,        # ..Report Count (1)                  50
+        0x09, 0x38,        # ..Usage (Wheel)                     52
+        0x81, 0x06,        # ..Input (Data,Var,Rel)              54
+        0x05, 0x0c,        # ..Usage Page (Consumer Devices)     56
+        0x0a, 0x38, 0x02,  # ..Usage (AC Pan)                    58
+        0x95, 0x01,        # ..Report Count (1)                  61
+        0x81, 0x06,        # ..Input (Data,Var,Rel)              63
+        0xc0,              # .End Collection                     65
+        0xc0,              # End Collection                      66
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+        self.hwheel_multiplier = 1
+
+
+class MIDongleMIWirelessMouse(TwoWheelMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,         # Usage Page (Generic Desktop)
+        0x09, 0x02,         # Usage (Mouse)
+        0xa1, 0x01,         # Collection (Application)
+        0x85, 0x01,         # .Report ID (1)
+        0x09, 0x01,         # .Usage (Pointer)
+        0xa1, 0x00,         # .Collection (Physical)
+        0x95, 0x05,         # ..Report Count (5)
+        0x75, 0x01,         # ..Report Size (1)
+        0x05, 0x09,         # ..Usage Page (Button)
+        0x19, 0x01,         # ..Usage Minimum (1)
+        0x29, 0x05,         # ..Usage Maximum (5)
+        0x15, 0x00,         # ..Logical Minimum (0)
+        0x25, 0x01,         # ..Logical Maximum (1)
+        0x81, 0x02,         # ..Input (Data,Var,Abs)
+        0x95, 0x01,         # ..Report Count (1)
+        0x75, 0x03,         # ..Report Size (3)
+        0x81, 0x01,         # ..Input (Cnst,Arr,Abs)
+        0x75, 0x08,         # ..Report Size (8)
+        0x95, 0x01,         # ..Report Count (1)
+        0x05, 0x01,         # ..Usage Page (Generic Desktop)
+        0x09, 0x38,         # ..Usage (Wheel)
+        0x15, 0x81,         # ..Logical Minimum (-127)
+        0x25, 0x7f,         # ..Logical Maximum (127)
+        0x81, 0x06,         # ..Input (Data,Var,Rel)
+        0x05, 0x0c,         # ..Usage Page (Consumer Devices)
+        0x0a, 0x38, 0x02,   # ..Usage (AC Pan)
+        0x95, 0x01,         # ..Report Count (1)
+        0x81, 0x06,         # ..Input (Data,Var,Rel)
+        0xc0,               # .End Collection
+        0x85, 0x02,         # .Report ID (2)
+        0x09, 0x01,         # .Usage (Consumer Control)
+        0xa1, 0x00,         # .Collection (Physical)
+        0x75, 0x0c,         # ..Report Size (12)
+        0x95, 0x02,         # ..Report Count (2)
+        0x05, 0x01,         # ..Usage Page (Generic Desktop)
+        0x09, 0x30,         # ..Usage (X)
+        0x09, 0x31,         # ..Usage (Y)
+        0x16, 0x01, 0xf8,   # ..Logical Minimum (-2047)
+        0x26, 0xff, 0x07,   # ..Logical Maximum (2047)
+        0x81, 0x06,         # ..Input (Data,Var,Rel)
+        0xc0,               # .End Collection
+        0xc0,               # End Collection
+        0x05, 0x0c,         # Usage Page (Consumer Devices)
+        0x09, 0x01,         # Usage (Consumer Control)
+        0xa1, 0x01,         # Collection (Application)
+        0x85, 0x03,         # .Report ID (3)
+        0x15, 0x00,         # .Logical Minimum (0)
+        0x25, 0x01,         # .Logical Maximum (1)
+        0x75, 0x01,         # .Report Size (1)
+        0x95, 0x01,         # .Report Count (1)
+        0x09, 0xcd,         # .Usage (Play/Pause)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x0a, 0x83, 0x01,   # .Usage (AL Consumer Control Config)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x09, 0xb5,         # .Usage (Scan Next Track)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x09, 0xb6,         # .Usage (Scan Previous Track)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x09, 0xea,         # .Usage (Volume Down)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x09, 0xe9,         # .Usage (Volume Up)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x0a, 0x25, 0x02,   # .Usage (AC Forward)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0x0a, 0x24, 0x02,   # .Usage (AC Back)
+        0x81, 0x06,         # .Input (Data,Var,Rel)
+        0xc0,               # End Collection
+    ]
+    # fmt: on
+    device_input_info = (BusType.USB, 0x2717, 0x003B)
+    device_name = "uhid test MI Dongle MI Wireless Mouse"
+
+    def __init__(
+        self, rdesc=report_descriptor, name=device_name, input_info=device_input_info
+    ):
+        super().__init__(rdesc, name, input_info)
+
+    def event(self, x, y, buttons=None, wheels=None):
+        # this mouse spreads the relative pointer and the mouse buttons
+        # onto 2 distinct reports
+        rs = []
+        r = self.create_report(x, y, buttons, wheels, reportID=1)
+        self.call_input_event(r)
+        rs.append(r)
+        r = self.create_report(x, y, buttons, reportID=2)
+        self.call_input_event(r)
+        rs.append(r)
+        return rs
+
+
+class ResolutionMultiplierMouse(TwoWheelMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,        # Usage Page (Generic Desktop)        83
+        0x09, 0x02,        # Usage (Mouse)                       85
+        0xa1, 0x01,        # Collection (Application)            87
+        0x05, 0x01,        # .Usage Page (Generic Desktop)       89
+        0x09, 0x02,        # .Usage (Mouse)                      91
+        0xa1, 0x02,        # .Collection (Logical)               93
+        0x85, 0x11,        # ..Report ID (17)                    95
+        0x09, 0x01,        # ..Usage (Pointer)                   97
+        0xa1, 0x00,        # ..Collection (Physical)             99
+        0x05, 0x09,        # ...Usage Page (Button)              101
+        0x19, 0x01,        # ...Usage Minimum (1)                103
+        0x29, 0x03,        # ...Usage Maximum (3)                105
+        0x95, 0x03,        # ...Report Count (3)                 107
+        0x75, 0x01,        # ...Report Size (1)                  109
+        0x25, 0x01,        # ...Logical Maximum (1)              111
+        0x81, 0x02,        # ...Input (Data,Var,Abs)             113
+        0x95, 0x01,        # ...Report Count (1)                 115
+        0x81, 0x01,        # ...Input (Cnst,Arr,Abs)             117
+        0x09, 0x05,        # ...Usage (Vendor Usage 0x05)        119
+        0x81, 0x02,        # ...Input (Data,Var,Abs)             121
+        0x95, 0x03,        # ...Report Count (3)                 123
+        0x81, 0x01,        # ...Input (Cnst,Arr,Abs)             125
+        0x05, 0x01,        # ...Usage Page (Generic Desktop)     127
+        0x09, 0x30,        # ...Usage (X)                        129
+        0x09, 0x31,        # ...Usage (Y)                        131
+        0x95, 0x02,        # ...Report Count (2)                 133
+        0x75, 0x08,        # ...Report Size (8)                  135
+        0x15, 0x81,        # ...Logical Minimum (-127)           137
+        0x25, 0x7f,        # ...Logical Maximum (127)            139
+        0x81, 0x06,        # ...Input (Data,Var,Rel)             141
+        0xa1, 0x02,        # ...Collection (Logical)             143
+        0x85, 0x12,        # ....Report ID (18)                  145
+        0x09, 0x48,        # ....Usage (Resolution Multiplier)   147
+        0x95, 0x01,        # ....Report Count (1)                149
+        0x75, 0x02,        # ....Report Size (2)                 151
+        0x15, 0x00,        # ....Logical Minimum (0)             153
+        0x25, 0x01,        # ....Logical Maximum (1)             155
+        0x35, 0x01,        # ....Physical Minimum (1)            157
+        0x45, 0x04,        # ....Physical Maximum (4)            159
+        0xb1, 0x02,        # ....Feature (Data,Var,Abs)          161
+        0x35, 0x00,        # ....Physical Minimum (0)            163
+        0x45, 0x00,        # ....Physical Maximum (0)            165
+        0x75, 0x06,        # ....Report Size (6)                 167
+        0xb1, 0x01,        # ....Feature (Cnst,Arr,Abs)          169
+        0x85, 0x11,        # ....Report ID (17)                  171
+        0x09, 0x38,        # ....Usage (Wheel)                   173
+        0x15, 0x81,        # ....Logical Minimum (-127)          175
+        0x25, 0x7f,        # ....Logical Maximum (127)           177
+        0x75, 0x08,        # ....Report Size (8)                 179
+        0x81, 0x06,        # ....Input (Data,Var,Rel)            181
+        0xc0,              # ...End Collection                   183
+        0x05, 0x0c,        # ...Usage Page (Consumer Devices)    184
+        0x75, 0x08,        # ...Report Size (8)                  186
+        0x0a, 0x38, 0x02,  # ...Usage (AC Pan)                   188
+        0x81, 0x06,        # ...Input (Data,Var,Rel)             191
+        0xc0,              # ..End Collection                    193
+        0xc0,              # .End Collection                     194
+        0xc0,              # End Collection                      195
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+        self.default_reportID = 0x11
+
+        # Feature Report 12, multiplier Feature value must be set to 0b01,
+        # i.e. 1. We should extract that from the descriptor instead
+        # of hardcoding it here, but meanwhile this will do.
+        self.set_feature_report = [0x12, 0x1]
+
+    def set_report(self, req, rnum, rtype, data):
+        if rtype != self.UHID_FEATURE_REPORT:
+            raise InvalidHIDCommunication(f"Unexpected report type: {rtype}")
+        if rnum != 0x12:
+            raise InvalidHIDCommunication(f"Unexpected report number: {rnum}")
+
+        if data != self.set_feature_report:
+            raise InvalidHIDCommunication(
+                f"Unexpected data: {data}, expected {self.set_feature_report}"
+            )
+
+        self.wheel_multiplier = 4
+
+        return 0
+
+
+class BadResolutionMultiplierMouse(ResolutionMultiplierMouse):
+    def set_report(self, req, rnum, rtype, data):
+        super().set_report(req, rnum, rtype, data)
+
+        self.wheel_multiplier = 1
+        self.hwheel_multiplier = 1
+        return 32  # EPIPE
+
+
+class BadReportDescriptorMouse(BaseMouse):
+    """
+    This "device" was one autogenerated by syzbot. There are a lot of issues in
+    it, and the most problematic is that it declares features that have no
+    size.
+
+    This leads to report->size being set to 0 and can mess up with usbhid
+    internals.  Fortunately, uhid merely passes the incoming buffer, without
+    touching it so a buffer of size 0 will be translated to [] without
+    triggering a kernel oops.
+
+    Because the report descriptor is wrong, no input are created, and we need
+    to tweak a little bit the parameters to make it look correct.
+    """
+
+    # fmt: off
+    report_descriptor = [
+        0x96, 0x01, 0x00,              # Report Count (1)                    0
+        0x06, 0x01, 0x00,              # Usage Page (Generic Desktop)        3
+        # 0x03, 0x00, 0x00, 0x00, 0x00,  # Ignored by the kernel somehow
+        0x2a, 0x90, 0xa0,              # Usage Maximum (41104)               6
+        0x27, 0x00, 0x00, 0x00, 0x00,  # Logical Maximum (0)                 9
+        0xb3, 0x81, 0x3e, 0x25, 0x03,  # Feature (Cnst,Arr,Abs,Vol)          14
+        0x1b, 0xdd, 0xe8, 0x40, 0x50,  # Usage Minimum (1346431197)          19
+        0x3b, 0x5d, 0x8c, 0x3d, 0xda,  # Designator Index                    24
+    ]
+    # fmt: on
+
+    def __init__(
+        self, rdesc=report_descriptor, name=None, input_info=(3, 0x045E, 0x07DA)
+    ):
+        super().__init__(rdesc, name, input_info)
+        self.high_resolution_report_called = False
+
+    def get_evdev(self, application=None):
+        assert self._input_nodes is None
+        return (
+            "Ok"  # should be a list or None, but both would fail, so abusing the system
+        )
+
+    def next_sync_events(self, application=None):
+        # there are no evdev nodes, so no events
+        return []
+
+    def is_ready(self):
+        # we wait for the SET_REPORT command to come
+        return self.high_resolution_report_called
+
+    def set_report(self, req, rnum, rtype, data):
+        if rtype != self.UHID_FEATURE_REPORT:
+            raise InvalidHIDCommunication(f"Unexpected report type: {rtype}")
+        if rnum != 0x0:
+            raise InvalidHIDCommunication(f"Unexpected report number: {rnum}")
+
+        if len(data) != 1:
+            raise InvalidHIDCommunication(f"Unexpected data: {data}, expected '[0]'")
+
+        self.high_resolution_report_called = True
+
+        return 0
+
+
+class ResolutionMultiplierHWheelMouse(TwoWheelMouse):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,         # Usage Page (Generic Desktop)        0
+        0x09, 0x02,         # Usage (Mouse)                       2
+        0xa1, 0x01,         # Collection (Application)            4
+        0x05, 0x01,         # .Usage Page (Generic Desktop)       6
+        0x09, 0x02,         # .Usage (Mouse)                      8
+        0xa1, 0x02,         # .Collection (Logical)               10
+        0x85, 0x1a,         # ..Report ID (26)                    12
+        0x09, 0x01,         # ..Usage (Pointer)                   14
+        0xa1, 0x00,         # ..Collection (Physical)             16
+        0x05, 0x09,         # ...Usage Page (Button)              18
+        0x19, 0x01,         # ...Usage Minimum (1)                20
+        0x29, 0x05,         # ...Usage Maximum (5)                22
+        0x95, 0x05,         # ...Report Count (5)                 24
+        0x75, 0x01,         # ...Report Size (1)                  26
+        0x15, 0x00,         # ...Logical Minimum (0)              28
+        0x25, 0x01,         # ...Logical Maximum (1)              30
+        0x81, 0x02,         # ...Input (Data,Var,Abs)             32
+        0x75, 0x03,         # ...Report Size (3)                  34
+        0x95, 0x01,         # ...Report Count (1)                 36
+        0x81, 0x01,         # ...Input (Cnst,Arr,Abs)             38
+        0x05, 0x01,         # ...Usage Page (Generic Desktop)     40
+        0x09, 0x30,         # ...Usage (X)                        42
+        0x09, 0x31,         # ...Usage (Y)                        44
+        0x95, 0x02,         # ...Report Count (2)                 46
+        0x75, 0x10,         # ...Report Size (16)                 48
+        0x16, 0x01, 0x80,   # ...Logical Minimum (-32767)         50
+        0x26, 0xff, 0x7f,   # ...Logical Maximum (32767)          53
+        0x81, 0x06,         # ...Input (Data,Var,Rel)             56
+        0xa1, 0x02,         # ...Collection (Logical)             58
+        0x85, 0x12,         # ....Report ID (18)                  60
+        0x09, 0x48,         # ....Usage (Resolution Multiplier)   62
+        0x95, 0x01,         # ....Report Count (1)                64
+        0x75, 0x02,         # ....Report Size (2)                 66
+        0x15, 0x00,         # ....Logical Minimum (0)             68
+        0x25, 0x01,         # ....Logical Maximum (1)             70
+        0x35, 0x01,         # ....Physical Minimum (1)            72
+        0x45, 0x0c,         # ....Physical Maximum (12)           74
+        0xb1, 0x02,         # ....Feature (Data,Var,Abs)          76
+        0x85, 0x1a,         # ....Report ID (26)                  78
+        0x09, 0x38,         # ....Usage (Wheel)                   80
+        0x35, 0x00,         # ....Physical Minimum (0)            82
+        0x45, 0x00,         # ....Physical Maximum (0)            84
+        0x95, 0x01,         # ....Report Count (1)                86
+        0x75, 0x10,         # ....Report Size (16)                88
+        0x16, 0x01, 0x80,   # ....Logical Minimum (-32767)        90
+        0x26, 0xff, 0x7f,   # ....Logical Maximum (32767)         93
+        0x81, 0x06,         # ....Input (Data,Var,Rel)            96
+        0xc0,               # ...End Collection                   98
+        0xa1, 0x02,         # ...Collection (Logical)             99
+        0x85, 0x12,         # ....Report ID (18)                  101
+        0x09, 0x48,         # ....Usage (Resolution Multiplier)   103
+        0x75, 0x02,         # ....Report Size (2)                 105
+        0x15, 0x00,         # ....Logical Minimum (0)             107
+        0x25, 0x01,         # ....Logical Maximum (1)             109
+        0x35, 0x01,         # ....Physical Minimum (1)            111
+        0x45, 0x0c,         # ....Physical Maximum (12)           113
+        0xb1, 0x02,         # ....Feature (Data,Var,Abs)          115
+        0x35, 0x00,         # ....Physical Minimum (0)            117
+        0x45, 0x00,         # ....Physical Maximum (0)            119
+        0x75, 0x04,         # ....Report Size (4)                 121
+        0xb1, 0x01,         # ....Feature (Cnst,Arr,Abs)          123
+        0x85, 0x1a,         # ....Report ID (26)                  125
+        0x05, 0x0c,         # ....Usage Page (Consumer Devices)   127
+        0x95, 0x01,         # ....Report Count (1)                129
+        0x75, 0x10,         # ....Report Size (16)                131
+        0x16, 0x01, 0x80,   # ....Logical Minimum (-32767)        133
+        0x26, 0xff, 0x7f,   # ....Logical Maximum (32767)         136
+        0x0a, 0x38, 0x02,   # ....Usage (AC Pan)                  139
+        0x81, 0x06,         # ....Input (Data,Var,Rel)            142
+        0xc0,               # ...End Collection                   144
+        0xc0,               # ..End Collection                    145
+        0xc0,               # .End Collection                     146
+        0xc0,               # End Collection                      147
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, input_info=None):
+        super().__init__(rdesc, name, input_info)
+        self.default_reportID = 0x1A
+
+        # Feature Report 12, multiplier Feature value must be set to 0b0101,
+        # i.e. 5. We should extract that from the descriptor instead
+        # of hardcoding it here, but meanwhile this will do.
+        self.set_feature_report = [0x12, 0x5]
+
+    def set_report(self, req, rnum, rtype, data):
+        super().set_report(req, rnum, rtype, data)
+
+        self.wheel_multiplier = 12
+        self.hwheel_multiplier = 12
+
+        return 0
+
+
+class BaseTest:
+    class TestMouse(base.BaseTestCase.TestUhid):
+        def test_buttons(self):
+            """check for button reliability."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            syn_event = self.syn_event
+
+            r = uhdev.event(0, 0, (None, True, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 1
+
+            r = uhdev.event(0, 0, (None, False, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 0
+
+            r = uhdev.event(0, 0, (None, None, True))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_MIDDLE, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_MIDDLE] == 1
+
+            r = uhdev.event(0, 0, (None, None, False))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_MIDDLE, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_MIDDLE] == 0
+
+            r = uhdev.event(0, 0, (True, None, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 1
+
+            r = uhdev.event(0, 0, (False, None, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0
+
+            r = uhdev.event(0, 0, (True, True, None))
+            expected_event0 = libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 1)
+            expected_event1 = libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn(
+                (syn_event, expected_event0, expected_event1), events
+            )
+            assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 1
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 1
+
+            r = uhdev.event(0, 0, (False, None, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 1
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0
+
+            r = uhdev.event(0, 0, (None, False, None))
+            expected_event = libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 0)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEventsIn((syn_event, expected_event), events)
+            assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 0
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0
+
+        def test_relative(self):
+            """Check for relative events."""
+            uhdev = self.uhdev
+
+            syn_event = self.syn_event
+
+            r = uhdev.event(0, -1)
+            expected_event = libevdev.InputEvent(libevdev.EV_REL.REL_Y, -1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEvents((syn_event, expected_event), events)
+
+            r = uhdev.event(1, 0)
+            expected_event = libevdev.InputEvent(libevdev.EV_REL.REL_X, 1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEvents((syn_event, expected_event), events)
+
+            r = uhdev.event(-1, 2)
+            expected_event0 = libevdev.InputEvent(libevdev.EV_REL.REL_X, -1)
+            expected_event1 = libevdev.InputEvent(libevdev.EV_REL.REL_Y, 2)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEvents(
+                (syn_event, expected_event0, expected_event1), events
+            )
+
+
+class TestSimpleMouse(BaseTest.TestMouse):
+    def create_device(self):
+        return ButtonMouse()
+
+    def test_rdesc(self):
+        """Check that the testsuite actually manages to format the
+        reports according to the report descriptors.
+        No kernel device is used here"""
+        uhdev = self.uhdev
+
+        event = (0, 0, (None, None, None))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (0, 0, (None, True, None))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (0, 0, (True, True, None))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (0, 0, (False, False, False))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (1, 0, (True, False, True))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (-1, 0, (True, False, True))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (-5, 5, (True, False, True))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (-127, 127, (True, False, True))
+        assert uhdev.fake_report(*event) == uhdev.create_report(*event)
+
+        event = (0, -128, (True, False, True))
+        with pytest.raises(hidtools.hid.RangeError):
+            uhdev.create_report(*event)
+
+
+class TestWheelMouse(BaseTest.TestMouse):
+    def create_device(self):
+        return WheelMouse()
+
+    def is_wheel_highres(self, uhdev):
+        evdev = uhdev.get_evdev()
+        assert evdev.has(libevdev.EV_REL.REL_WHEEL)
+        return evdev.has(libevdev.EV_REL.REL_WHEEL_HI_RES)
+
+    def test_wheel(self):
+        uhdev = self.uhdev
+
+        # check if the kernel is high res wheel compatible
+        high_res_wheel = self.is_wheel_highres(uhdev)
+
+        syn_event = self.syn_event
+        # The Resolution Multiplier is applied to the HID reports, so we
+        # need to pre-multiply too.
+        mult = uhdev.wheel_multiplier
+
+        r = uhdev.event(0, 0, wheels=1 * mult)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL, 1))
+        if high_res_wheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, 120))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(0, 0, wheels=-1 * mult)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL, -1))
+        if high_res_wheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, -120))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(-1, 2, wheels=3 * mult)
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_X, -1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_Y, 2))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL, 3))
+        if high_res_wheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, 360))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+
+class TestTwoWheelMouse(TestWheelMouse):
+    def create_device(self):
+        return TwoWheelMouse()
+
+    def is_hwheel_highres(self, uhdev):
+        evdev = uhdev.get_evdev()
+        assert evdev.has(libevdev.EV_REL.REL_HWHEEL)
+        return evdev.has(libevdev.EV_REL.REL_HWHEEL_HI_RES)
+
+    def test_ac_pan(self):
+        uhdev = self.uhdev
+
+        # check if the kernel is high res wheel compatible
+        high_res_wheel = self.is_wheel_highres(uhdev)
+        high_res_hwheel = self.is_hwheel_highres(uhdev)
+        assert high_res_wheel == high_res_hwheel
+
+        syn_event = self.syn_event
+        # The Resolution Multiplier is applied to the HID reports, so we
+        # need to pre-multiply too.
+        hmult = uhdev.hwheel_multiplier
+        vmult = uhdev.wheel_multiplier
+
+        r = uhdev.event(0, 0, wheels=(0, 1 * hmult))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL, 1))
+        if high_res_hwheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, 120))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(0, 0, wheels=(0, -1 * hmult))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL, -1))
+        if high_res_hwheel:
+            expected.append(
+                libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, -120)
+            )
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(-1, 2, wheels=(0, 3 * hmult))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_X, -1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_Y, 2))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL, 3))
+        if high_res_hwheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, 360))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(-1, 2, wheels=(-3 * vmult, 4 * hmult))
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_X, -1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_Y, 2))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL, -3))
+        if high_res_wheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, -360))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL, 4))
+        if high_res_wheel:
+            expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, 480))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+
+class TestResolutionMultiplierMouse(TestTwoWheelMouse):
+    def create_device(self):
+        return ResolutionMultiplierMouse()
+
+    def is_wheel_highres(self, uhdev):
+        high_res = super().is_wheel_highres(uhdev)
+
+        if not high_res:
+            # the kernel doesn't seem to support the high res wheel mice,
+            # make sure we haven't triggered the feature
+            assert uhdev.wheel_multiplier == 1
+
+        return high_res
+
+    def test_resolution_multiplier_wheel(self):
+        uhdev = self.uhdev
+
+        if not self.is_wheel_highres(uhdev):
+            pytest.skip("Kernel not compatible, we can not trigger the conditions")
+
+        assert uhdev.wheel_multiplier > 1
+        assert 120 % uhdev.wheel_multiplier == 0
+
+    def test_wheel_with_multiplier(self):
+        uhdev = self.uhdev
+
+        if not self.is_wheel_highres(uhdev):
+            pytest.skip("Kernel not compatible, we can not trigger the conditions")
+
+        assert uhdev.wheel_multiplier > 1
+
+        syn_event = self.syn_event
+        mult = uhdev.wheel_multiplier
+
+        r = uhdev.event(0, 0, wheels=1)
+        expected = [syn_event]
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, 120 / mult)
+        )
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(0, 0, wheels=-1)
+        expected = [syn_event]
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, -120 / mult)
+        )
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_X, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_Y, -2))
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL_HI_RES, 120 / mult)
+        )
+
+        for _ in range(mult - 1):
+            r = uhdev.event(1, -2, wheels=1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEvents(expected, events)
+
+        r = uhdev.event(1, -2, wheels=1)
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_WHEEL, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+
+class TestBadResolutionMultiplierMouse(TestTwoWheelMouse):
+    def create_device(self):
+        return BadResolutionMultiplierMouse()
+
+    def is_wheel_highres(self, uhdev):
+        high_res = super().is_wheel_highres(uhdev)
+
+        assert uhdev.wheel_multiplier == 1
+
+        return high_res
+
+    def test_resolution_multiplier_wheel(self):
+        uhdev = self.uhdev
+
+        assert uhdev.wheel_multiplier == 1
+
+
+class TestResolutionMultiplierHWheelMouse(TestResolutionMultiplierMouse):
+    def create_device(self):
+        return ResolutionMultiplierHWheelMouse()
+
+    def is_hwheel_highres(self, uhdev):
+        high_res = super().is_hwheel_highres(uhdev)
+
+        if not high_res:
+            # the kernel doesn't seem to support the high res wheel mice,
+            # make sure we haven't triggered the feature
+            assert uhdev.hwheel_multiplier == 1
+
+        return high_res
+
+    def test_resolution_multiplier_ac_pan(self):
+        uhdev = self.uhdev
+
+        if not self.is_hwheel_highres(uhdev):
+            pytest.skip("Kernel not compatible, we can not trigger the conditions")
+
+        assert uhdev.hwheel_multiplier > 1
+        assert 120 % uhdev.hwheel_multiplier == 0
+
+    def test_ac_pan_with_multiplier(self):
+        uhdev = self.uhdev
+
+        if not self.is_hwheel_highres(uhdev):
+            pytest.skip("Kernel not compatible, we can not trigger the conditions")
+
+        assert uhdev.hwheel_multiplier > 1
+
+        syn_event = self.syn_event
+        hmult = uhdev.hwheel_multiplier
+
+        r = uhdev.event(0, 0, wheels=(0, 1))
+        expected = [syn_event]
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, 120 / hmult)
+        )
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        r = uhdev.event(0, 0, wheels=(0, -1))
+        expected = [syn_event]
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, -120 / hmult)
+        )
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+        expected = [syn_event]
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_X, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_Y, -2))
+        expected.append(
+            libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL_HI_RES, 120 / hmult)
+        )
+
+        for _ in range(hmult - 1):
+            r = uhdev.event(1, -2, wheels=(0, 1))
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            self.assertInputEvents(expected, events)
+
+        r = uhdev.event(1, -2, wheels=(0, 1))
+        expected.append(libevdev.InputEvent(libevdev.EV_REL.REL_HWHEEL, 1))
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        self.assertInputEvents(expected, events)
+
+
+class TestMiMouse(TestWheelMouse):
+    def create_device(self):
+        return MIDongleMIWirelessMouse()
+
+    def assertInputEvents(self, expected_events, effective_events):
+        # Buttons and x/y are spread over two HID reports, so we can get two
+        # event frames for this device.
+        remaining = self.assertInputEventsIn(expected_events, effective_events)
+        try:
+            remaining.remove(libevdev.InputEvent(libevdev.EV_SYN.SYN_REPORT, 0))
+        except ValueError:
+            # If there's no SYN_REPORT in the list, continue and let the
+            # assert below print out the real error
+            pass
+        assert remaining == []
+
+
+class TestBadReportDescriptorMouse(base.BaseTestCase.TestUhid):
+    def create_device(self):
+        return BadReportDescriptorMouse()
+
+    def assertName(self, uhdev):
+        pass
diff --git a/tools/testing/selftests/hid/tests/test_multitouch.py b/tools/testing/selftests/hid/tests/test_multitouch.py
new file mode 100644
index 000000000000..ece0ba8e7d34
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_multitouch.py
@@ -0,0 +1,2143 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+#
+
+from . import base
+from hidtools.hut import HUT
+from hidtools.util import BusType
+import libevdev
+import logging
+import pytest
+import sys
+import time
+
+logger = logging.getLogger("hidtools.test.multitouch")
+
+KERNEL_MODULE = base.KernelModule("hid-multitouch", "hid_multitouch")
+
+
+def BIT(x):
+    return 1 << x
+
+
+mt_quirks = {
+    "NOT_SEEN_MEANS_UP": BIT(0),
+    "SLOT_IS_CONTACTID": BIT(1),
+    "CYPRESS": BIT(2),
+    "SLOT_IS_CONTACTNUMBER": BIT(3),
+    "ALWAYS_VALID": BIT(4),
+    "VALID_IS_INRANGE": BIT(5),
+    "VALID_IS_CONFIDENCE": BIT(6),
+    "CONFIDENCE": BIT(7),
+    "SLOT_IS_CONTACTID_MINUS_ONE": BIT(8),
+    "NO_AREA": BIT(9),
+    "IGNORE_DUPLICATES": BIT(10),
+    "HOVERING": BIT(11),
+    "CONTACT_CNT_ACCURATE": BIT(12),
+    "FORCE_GET_FEATURE": BIT(13),
+    "FIX_CONST_CONTACT_ID": BIT(14),
+    "TOUCH_SIZE_SCALING": BIT(15),
+    "STICKY_FINGERS": BIT(16),
+    "ASUS_CUSTOM_UP": BIT(17),
+    "WIN8_PTP_BUTTONS": BIT(18),
+    "SEPARATE_APP_REPORT": BIT(19),
+    "MT_QUIRK_FORCE_MULTI_INPUT": BIT(20),
+}
+
+
+class Data(object):
+    pass
+
+
+class Touch(object):
+    def __init__(self, id, x, y):
+        self.contactid = id
+        self.x = x
+        self.y = y
+        self.cx = x
+        self.cy = y
+        self.tipswitch = True
+        self.confidence = True
+        self.tippressure = 15
+        self.azimuth = 0
+        self.inrange = True
+        self.width = 10
+        self.height = 10
+
+
+class Pen(Touch):
+    def __init__(self, x, y):
+        super().__init__(0, x, y)
+        self.barrel = False
+        self.invert = False
+        self.eraser = False
+        self.x_tilt = False
+        self.y_tilt = False
+        self.twist = 0
+
+
+class Digitizer(base.UHIDTestDevice):
+    @classmethod
+    def msCertificationBlob(cls, reportID):
+        return f"""
+        Usage Page (Digitizers)
+        Usage (Touch Screen)
+        Collection (Application)
+         Report ID ({reportID})
+         Usage Page (0xff00)
+         Usage (0xc5)
+         Logical Minimum (0)
+         Logical Maximum (255)
+         Report Size (8)
+         Report Count (256)
+         Feature (Data,Var,Abs)
+        End Collection
+    """
+
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Touch Screen",
+        physical="Finger",
+        max_contacts=None,
+        input_info=(BusType.USB, 1, 2),
+        quirks=None,
+    ):
+        super().__init__(name, application, rdesc_str, rdesc, input_info)
+        self.scantime = 0
+        self.quirks = quirks
+        if max_contacts is None:
+            self.max_contacts = sys.maxsize
+            for features in self.parsed_rdesc.feature_reports.values():
+                for feature in features:
+                    if feature.usage_name in ["Contact Max"]:
+                        self.max_contacts = feature.logical_max
+            for inputs in self.parsed_rdesc.input_reports.values():
+                for i in inputs:
+                    if (
+                        i.usage_name in ["Contact Count"]
+                        and i.logical_max > 0
+                        and self.max_contacts > i.logical_max
+                    ):
+                        self.max_contacts = i.logical_max
+            if self.max_contacts == sys.maxsize:
+                self.max_contacts = 1
+        else:
+            self.max_contacts = max_contacts
+        self.physical = physical
+        self.cur_application = application
+
+        for features in self.parsed_rdesc.feature_reports.values():
+            for feature in features:
+                if feature.usage_name == "Inputmode":
+                    self.cur_application = "Mouse"
+
+        self.fields = []
+        for r in self.parsed_rdesc.input_reports.values():
+            if r.application_name == self.application:
+                physicals = [f.physical_name for f in r]
+                if self.physical not in physicals and None not in physicals:
+                    continue
+                self.fields = [f.usage_name for f in r]
+
+    @property
+    def touches_in_a_report(self):
+        return self.fields.count("Contact Id")
+
+    def event(self, slots, global_data=None, contact_count=None, incr_scantime=True):
+        if incr_scantime:
+            self.scantime += 1
+        rs = []
+        # make sure we have only the required number of available slots
+        slots = slots[: self.max_contacts]
+
+        if global_data is None:
+            global_data = Data()
+        if contact_count is None:
+            global_data.contactcount = len(slots)
+        else:
+            global_data.contactcount = contact_count
+        global_data.scantime = self.scantime
+
+        while len(slots):
+            r = self.create_report(
+                application=self.cur_application, data=slots, global_data=global_data
+            )
+            self.call_input_event(r)
+            rs.append(r)
+            global_data.contactcount = 0
+        return rs
+
+    def get_report(self, req, rnum, rtype):
+        if rtype != self.UHID_FEATURE_REPORT:
+            return (1, [])
+
+        rdesc = None
+        for v in self.parsed_rdesc.feature_reports.values():
+            if v.report_ID == rnum:
+                rdesc = v
+
+        if rdesc is None:
+            return (1, [])
+
+        if "Contact Max" not in [f.usage_name for f in rdesc]:
+            return (1, [])
+
+        self.contactmax = self.max_contacts
+        r = rdesc.create_report([self], None)
+        return (0, r)
+
+    def set_report(self, req, rnum, rtype, data):
+        if rtype != self.UHID_FEATURE_REPORT:
+            return 1
+
+        rdesc = None
+        for v in self.parsed_rdesc.feature_reports.values():
+            if v.report_ID == rnum:
+                rdesc = v
+
+        if rdesc is None:
+            return 1
+
+        if "Inputmode" not in [f.usage_name for f in rdesc]:
+            return 0
+
+        Inputmode_seen = False
+        for f in rdesc:
+            if "Inputmode" == f.usage_name:
+                values = f.get_values(data)
+                assert len(values) == 1
+                value = values[0]
+
+                if not Inputmode_seen:
+                    Inputmode_seen = True
+                    if value == 0:
+                        self.cur_application = "Mouse"
+                    elif value == 2:
+                        self.cur_application = "Touch Screen"
+                    elif value == 3:
+                        self.cur_application = "Touch Pad"
+                else:
+                    if value != 0:
+                        # Elan bug where the device doesn't work properly
+                        # if we set twice an Input Mode in the same Feature
+                        self.cur_application = "Mouse"
+
+        return 0
+
+
+class PTP(Digitizer):
+    def __init__(
+        self,
+        name,
+        type="Click Pad",
+        rdesc_str=None,
+        rdesc=None,
+        application="Touch Pad",
+        physical="Pointer",
+        max_contacts=None,
+        input_info=None,
+    ):
+        self.type = type.lower().replace(" ", "")
+        if self.type == "clickpad":
+            self.buttontype = 0
+        else:  # pressurepad
+            self.buttontype = 1
+        self.clickpad_state = False
+        self.left_state = False
+        self.right_state = False
+        super().__init__(
+            name, rdesc_str, rdesc, application, physical, max_contacts, input_info
+        )
+
+    def event(
+        self,
+        slots=None,
+        click=None,
+        left=None,
+        right=None,
+        contact_count=None,
+        incr_scantime=True,
+    ):
+        # update our internal state
+        if click is not None:
+            self.clickpad_state = click
+        if left is not None:
+            self.left_state = left
+        if right is not None:
+            self.right_state = right
+
+        # now create the global data
+        global_data = Data()
+        global_data.b1 = 1 if self.clickpad_state else 0
+        global_data.b2 = 1 if self.left_state else 0
+        global_data.b3 = 1 if self.right_state else 0
+
+        if slots is None:
+            slots = [Data()]
+
+        return super().event(slots, global_data, contact_count, incr_scantime)
+
+
+class MinWin8TSParallel(Digitizer):
+    def __init__(self, max_slots):
+        self.max_slots = max_slots
+        self.phys_max = 120, 90
+        rdesc_finger_str = f"""
+            Usage Page (Digitizers)
+            Usage (Finger)
+            Collection (Logical)
+             Report Size (1)
+             Report Count (1)
+             Logical Minimum (0)
+             Logical Maximum (1)
+             Usage (Tip Switch)
+             Input (Data,Var,Abs)
+             Report Size (7)
+             Logical Maximum (127)
+             Input (Cnst,Var,Abs)
+             Report Size (8)
+             Logical Maximum (255)
+             Usage (Contact Id)
+             Input (Data,Var,Abs)
+             Report Size (16)
+             Unit Exponent (-1)
+             Unit (SILinear: cm)
+             Logical Maximum (4095)
+             Physical Minimum (0)
+             Physical Maximum ({self.phys_max[0]})
+             Usage Page (Generic Desktop)
+             Usage (X)
+             Input (Data,Var,Abs)
+             Physical Maximum ({self.phys_max[1]})
+             Usage (Y)
+             Input (Data,Var,Abs)
+             Usage Page (Digitizers)
+             Usage (Azimuth)
+             Logical Maximum (360)
+             Unit (SILinear: deg)
+             Report Size (16)
+             Input (Data,Var,Abs)
+            End Collection
+"""
+        rdesc_str = f"""
+           Usage Page (Digitizers)
+           Usage (Touch Screen)
+           Collection (Application)
+            Report ID (1)
+            {rdesc_finger_str * self.max_slots}
+            Unit Exponent (-4)
+            Unit (SILinear: s)
+            Logical Maximum (65535)
+            Physical Maximum (65535)
+            Usage Page (Digitizers)
+            Usage (Scan Time)
+            Input (Data,Var,Abs)
+            Report Size (8)
+            Logical Maximum (255)
+            Usage (Contact Count)
+            Input (Data,Var,Abs)
+            Report ID (2)
+            Logical Maximum ({self.max_slots})
+            Usage (Contact Max)
+            Feature (Data,Var,Abs)
+          End Collection
+          {Digitizer.msCertificationBlob(68)}
+"""
+        super().__init__(f"uhid test parallel {self.max_slots}", rdesc_str)
+
+
+class MinWin8TSHybrid(Digitizer):
+    def __init__(self):
+        self.max_slots = 10
+        self.phys_max = 120, 90
+        rdesc_finger_str = f"""
+            Usage Page (Digitizers)
+            Usage (Finger)
+            Collection (Logical)
+             Report Size (1)
+             Report Count (1)
+             Logical Minimum (0)
+             Logical Maximum (1)
+             Usage (Tip Switch)
+             Input (Data,Var,Abs)
+             Report Size (7)
+             Logical Maximum (127)
+             Input (Cnst,Var,Abs)
+             Report Size (8)
+             Logical Maximum (255)
+             Usage (Contact Id)
+             Input (Data,Var,Abs)
+             Report Size (16)
+             Unit Exponent (-1)
+             Unit (SILinear: cm)
+             Logical Maximum (4095)
+             Physical Minimum (0)
+             Physical Maximum ({self.phys_max[0]})
+             Usage Page (Generic Desktop)
+             Usage (X)
+             Input (Data,Var,Abs)
+             Physical Maximum ({self.phys_max[1]})
+             Usage (Y)
+             Input (Data,Var,Abs)
+            End Collection
+"""
+        rdesc_str = f"""
+           Usage Page (Digitizers)
+           Usage (Touch Screen)
+           Collection (Application)
+            Report ID (1)
+            {rdesc_finger_str * 2}
+            Unit Exponent (-4)
+            Unit (SILinear: s)
+            Logical Maximum (65535)
+            Physical Maximum (65535)
+            Usage Page (Digitizers)
+            Usage (Scan Time)
+            Input (Data,Var,Abs)
+            Report Size (8)
+            Logical Maximum (255)
+            Usage (Contact Count)
+            Input (Data,Var,Abs)
+            Report ID (2)
+            Logical Maximum ({self.max_slots})
+            Usage (Contact Max)
+            Feature (Data,Var,Abs)
+          End Collection
+          {Digitizer.msCertificationBlob(68)}
+"""
+        super().__init__("uhid test hybrid", rdesc_str)
+
+
+class Win8TSConfidence(Digitizer):
+    def __init__(self, max_slots):
+        self.max_slots = max_slots
+        self.phys_max = 120, 90
+        rdesc_finger_str = f"""
+            Usage Page (Digitizers)
+            Usage (Finger)
+            Collection (Logical)
+             Report Size (1)
+             Report Count (1)
+             Logical Minimum (0)
+             Logical Maximum (1)
+             Usage (Tip Switch)
+             Input (Data,Var,Abs)
+             Usage (Confidence)
+             Input (Data,Var,Abs)
+             Report Size (6)
+             Logical Maximum (127)
+             Input (Cnst,Var,Abs)
+             Report Size (8)
+             Logical Maximum (255)
+             Usage (Contact Id)
+             Input (Data,Var,Abs)
+             Report Size (16)
+             Unit Exponent (-1)
+             Unit (SILinear: cm)
+             Logical Maximum (4095)
+             Physical Minimum (0)
+             Physical Maximum ({self.phys_max[0]})
+             Usage Page (Generic Desktop)
+             Usage (X)
+             Input (Data,Var,Abs)
+             Physical Maximum ({self.phys_max[1]})
+             Usage (Y)
+             Input (Data,Var,Abs)
+             Usage Page (Digitizers)
+             Usage (Azimuth)
+             Logical Maximum (360)
+             Unit (SILinear: deg)
+             Report Size (16)
+             Input (Data,Var,Abs)
+            End Collection
+"""
+        rdesc_str = f"""
+           Usage Page (Digitizers)
+           Usage (Touch Screen)
+           Collection (Application)
+            Report ID (1)
+            {rdesc_finger_str * self.max_slots}
+            Unit Exponent (-4)
+            Unit (SILinear: s)
+            Logical Maximum (65535)
+            Physical Maximum (65535)
+            Usage Page (Digitizers)
+            Usage (Scan Time)
+            Input (Data,Var,Abs)
+            Report Size (8)
+            Logical Maximum (255)
+            Usage (Contact Count)
+            Input (Data,Var,Abs)
+            Report ID (2)
+            Logical Maximum ({self.max_slots})
+            Usage (Contact Max)
+            Feature (Data,Var,Abs)
+          End Collection
+          {Digitizer.msCertificationBlob(68)}
+"""
+        super().__init__(f"uhid test confidence {self.max_slots}", rdesc_str)
+
+
+class SmartTechDigitizer(Digitizer):
+    def __init__(self, name, input_info):
+        super().__init__(
+            name,
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 05 81 03 05 01 15 00 26 ff 0f 55 0e 65 11 75 10 95 01 35 00 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0 05 0d 09 06 15 00 26 ff 00 a1 01 85 02 75 08 95 3f 09 00 82 02 01 95 3f 09 00 92 02 01 c0 05 0d 09 04 a1 01 85 05 05 0d 09 20 a1 00 25 01 75 01 95 02 09 42 09 45 81 02 75 06 95 01 09 30 81 02 26 ff 00 75 08 09 51 81 02 75 10 09 38 81 02 95 02 26 ff 0f 09 48 09 49 81 02 05 01 09 30 09 31 81 02 c0 05 0d 09 20 a1 00 25 01 75 01 95 02 09 42 09 45 81 02 75 06 95 01 09 30 81 02 26 ff 00 75 08 09 51 81 02 75 10 09 38 81 02 95 02 26 ff 0f 09 48 09 49 81 02 05 01 09 30 09 31 81 02 c0 05 0d 09 20 a1 00 25 01 75 01 95 02 09 42 09 45 81 02 75 06 95 01 09 30 81 02 26 ff 00 75 08 09 51 81 02 75 10 09 38 81 02 95 02 26 ff 0f 09 48 09 49 81 02 05 01 09 30 09 31 81 02 c0 05 0d 09 20 a1 00 25 01 75 01 95 02 09 42 09 45 81 02 75 06 95 01 09 30 81 02 26 ff 00 75 08 09 51 81 02 75 10 09 38 81 02 95 02 26 ff 0f 09 48 09 49 81 02 05 01 09 30 09 31 81 02 c0 05 0d 75 08 95 01 15 00 25 0a 09 54 81 02 09 55 b1 02 c0 05 0d 09 0e a1 01 85 04 09 23 a1 02 15 00 25 02 75 08 95 02 09 52 09 53 b1 02 c0 c0 05 0d 09 04 a1 01 85 03 05 0d 09 22 a1 02 15 00 25 01 75 01 95 02 09 42 09 47 81 02 95 02 81 03 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 95 01 09 51 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 15 00 25 01 75 01 95 02 09 42 09 47 81 02 95 02 81 03 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 95 01 09 51 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 15 00 25 01 75 01 95 02 09 42 09 47 81 02 95 02 81 03 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 95 01 09 51 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 15 00 25 01 75 01 95 02 09 42 09 47 81 02 95 02 81 03 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 95 01 09 51 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 05 0d 75 08 95 01 15 00 25 0a 09 54 81 02 09 55 b1 02 c0 05 0d 09 04 a1 01 85 06 09 22 a1 02 15 00 25 01 75 01 95 02 09 42 09 47 81 02 95 06 81 03 95 01 75 10 65 11 55 0e 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0 05 0d 09 02 a1 01 85 07 09 20 a1 02 25 01 75 01 95 04 09 42 09 44 09 3c 09 45 81 02 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 09 38 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0 05 0d 09 02 a1 01 85 08 09 20 a1 02 25 01 75 01 95 04 09 42 09 44 09 3c 09 45 81 02 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 09 38 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0 05 0d 09 02 a1 01 85 09 09 20 a1 02 25 01 75 01 95 04 09 42 09 44 09 3c 09 45 81 02 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 09 38 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0 05 0d 09 02 a1 01 85 0a 09 20 a1 02 25 01 75 01 95 04 09 42 09 44 09 3c 09 45 81 02 75 04 95 01 25 0f 09 30 81 02 26 ff 00 75 08 09 38 81 02 75 10 27 a0 8c 00 00 55 0e 65 14 47 a0 8c 00 00 09 3f 81 02 65 11 26 ff 0f 46 c8 37 09 48 81 02 46 68 1f 09 49 81 02 05 01 46 c8 37 09 30 81 02 46 68 1f 09 31 81 02 45 00 c0 c0",
+            input_info=input_info,
+        )
+
+    def create_report(self, data, global_data=None, reportID=None, application=None):
+        # this device has *a lot* of different reports, and most of them
+        # have the Touch Screen application. But the first one is a stylus
+        # report (as stated in the physical type), so we simply override
+        # the report ID to use what the device sends
+        return super().create_report(data, global_data=global_data, reportID=3)
+
+    def match_evdev_rule(self, application, evdev):
+        # we need to select the correct evdev node, as the device has multiple
+        # Touch Screen application collections
+        if application != "Touch Screen":
+            return True
+        absinfo = evdev.absinfo[libevdev.EV_ABS.ABS_MT_POSITION_X]
+        return absinfo is not None and absinfo.resolution == 3
+
+
+class BaseTest:
+    class TestMultitouch(base.BaseTestCase.TestUhid):
+        kernel_modules = [KERNEL_MODULE]
+
+        def create_device(self):
+            raise Exception("please reimplement me in subclasses")
+
+        def get_slot(self, uhdev, t, default):
+            if uhdev.quirks is None:
+                return default
+
+            if "SLOT_IS_CONTACTID" in uhdev.quirks:
+                return t.contactid
+
+            if "SLOT_IS_CONTACTID_MINUS_ONE" in uhdev.quirks:
+                return t.contactid - 1
+
+            return default
+
+        def test_creation(self):
+            """Make sure the device gets processed by the kernel and creates
+            the expected application input node.
+
+            If this fail, there is something wrong in the device report
+            descriptors."""
+            super().test_creation()
+
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            # some sanity checking for the quirks
+            if uhdev.quirks is not None:
+                for q in uhdev.quirks:
+                    assert q in mt_quirks
+
+            assert evdev.num_slots == uhdev.max_contacts
+
+            if uhdev.max_contacts > 1:
+                assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+                assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            if uhdev.max_contacts > 2:
+                assert evdev.slots[2][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        def test_required_usages(self):
+            """Make sure the device exports the correct required features and
+            inputs."""
+            uhdev = self.uhdev
+            rdesc = uhdev.parsed_rdesc
+            for feature in rdesc.feature_reports.values():
+                for field in feature:
+                    page_id = field.usage >> 16
+                    value = field.usage & 0xFF
+                    try:
+                        if HUT[page_id][value] == "Contact Max":
+                            assert HUT[page_id][field.application] in [
+                                "Touch Screen",
+                                "Touch Pad",
+                                "System Multi-Axis Controller",
+                            ]
+                    except KeyError:
+                        pass
+
+                    try:
+                        if HUT[page_id][value] == "Inputmode":
+                            assert HUT[page_id][field.application] in [
+                                "Touch Screen",
+                                "Touch Pad",
+                                "Device Configuration",
+                            ]
+                    except KeyError:
+                        pass
+
+        def test_mt_single_touch(self):
+            """send a single touch in the first slot of the device,
+            and release it."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 50, 100)
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            slot = self.get_slot(uhdev, t0, 0)
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+
+            t0.tipswitch = False
+            if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+                t0.inrange = False
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+            assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        def test_mt_dual_touch(self):
+            """Send 2 touches in the first 2 slots.
+            Make sure the kernel sees this as a dual touch.
+            Release and check
+
+            Note: PTP will send here BTN_DOUBLETAP emulation"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 50, 100)
+            t1 = Touch(2, 150, 200)
+
+            if uhdev.quirks is not None and (
+                "SLOT_IS_CONTACTID" in uhdev.quirks
+                or "SLOT_IS_CONTACTNUMBER" in uhdev.quirks
+            ):
+                t1.contactid = 0
+
+            slot0 = self.get_slot(uhdev, t0, 0)
+            slot1 = self.get_slot(uhdev, t1, 1)
+
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+            r = uhdev.event([t0, t1])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH) not in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert (
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_X, 5) not in events
+            )
+            assert (
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_Y, 10) not in events
+            )
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_POSITION_X] == 150
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 200
+
+            t0.tipswitch = False
+            if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+                t0.inrange = False
+            r = uhdev.event([t0, t1])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_X) not in events
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_Y) not in events
+
+            t1.tipswitch = False
+            if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+                t1.inrange = False
+
+            if uhdev.quirks is not None and "SLOT_IS_CONTACTNUMBER" in uhdev.quirks:
+                r = uhdev.event([t0, t1])
+            else:
+                r = uhdev.event([t1])
+
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: uhdev.max_contacts <= 2, "Device not compatible"
+        )
+        def test_mt_triple_tap(self):
+            """Send 3 touches in the first 3 slots.
+            Make sure the kernel sees this as a triple touch.
+            Release and check
+
+            Note: PTP will send here BTN_TRIPLETAP emulation"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 50, 100)
+            t1 = Touch(2, 150, 200)
+            t2 = Touch(3, 250, 300)
+            r = uhdev.event([t0, t1, t2])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            slot0 = self.get_slot(uhdev, t0, 0)
+            slot1 = self.get_slot(uhdev, t1, 1)
+            slot2 = self.get_slot(uhdev, t2, 2)
+
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_POSITION_X] == 150
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 200
+            assert evdev.slots[slot2][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 2
+            assert evdev.slots[slot2][libevdev.EV_ABS.ABS_MT_POSITION_X] == 250
+            assert evdev.slots[slot2][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 300
+
+            t0.tipswitch = False
+            t1.tipswitch = False
+            t2.tipswitch = False
+            if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+                t0.inrange = False
+                t1.inrange = False
+                t2.inrange = False
+            r = uhdev.event([t0, t1, t2])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[slot2][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: uhdev.max_contacts <= 2, "Device not compatible"
+        )
+        def test_mt_max_contact(self):
+            """send the maximum number of contact as reported by the device.
+            Make sure all contacts are forwarded and that there is no miss.
+            Release and check."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            touches = [
+                Touch(i, (i + 3) * 20, (i + 3) * 20 + 5)
+                for i in range(uhdev.max_contacts)
+            ]
+            if (
+                uhdev.quirks is not None
+                and "SLOT_IS_CONTACTID_MINUS_ONE" in uhdev.quirks
+            ):
+                for t in touches:
+                    t.contactid += 1
+            r = uhdev.event(touches)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            for i, t in enumerate(touches):
+                slot = self.get_slot(uhdev, t, i)
+
+                assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == i
+                assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_X] == t.x
+                assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_Y] == t.y
+
+            for t in touches:
+                t.tipswitch = False
+                if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+                    t.inrange = False
+
+            r = uhdev.event(touches)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            for i, t in enumerate(touches):
+                slot = self.get_slot(uhdev, t, i)
+
+                assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: (
+                uhdev.touches_in_a_report == 1
+                or uhdev.quirks is not None
+                and "CONTACT_CNT_ACCURATE" not in uhdev.quirks
+            ),
+            "Device not compatible, we can not trigger the conditions",
+        )
+        def test_mt_contact_count_accurate(self):
+            """Test the MT_QUIRK_CONTACT_CNT_ACCURATE from the kernel.
+            A report should forward an accurate contact count and the kernel
+            should ignore any data provided after we have reached this
+            contact count."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 50, 100)
+            t1 = Touch(2, 150, 200)
+
+            slot0 = self.get_slot(uhdev, t0, 0)
+            slot1 = self.get_slot(uhdev, t1, 1)
+
+            r = uhdev.event([t0, t1], contact_count=1)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_TRACKING_ID, 0) in events
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[slot0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[slot1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+    class TestWin8Multitouch(TestMultitouch):
+        def test_required_usages8(self):
+            """Make sure the device exports the correct required features and
+            inputs."""
+            uhdev = self.uhdev
+            rdesc = uhdev.parsed_rdesc
+            for feature in rdesc.feature_reports.values():
+                for field in feature:
+                    page_id = field.usage >> 16
+                    value = field.usage & 0xFF
+                    try:
+                        if HUT[page_id][value] == "Inputmode":
+                            assert HUT[field.application] not in ["Touch Screen"]
+                    except KeyError:
+                        pass
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: uhdev.fields.count("X") == uhdev.touches_in_a_report,
+            "Device not compatible, we can not trigger the conditions",
+        )
+        def test_mt_tx_cx(self):
+            """send a single touch in the first slot of the device, with
+            different values of Tx and Cx. Make sure the kernel reports Tx."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 5, 10)
+            t0.cx = 50
+            t0.cy = 100
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 5
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TOOL_X] == 50
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 10
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TOOL_Y] == 100
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "In Range" not in uhdev.fields,
+            "Device not compatible, missing In Range usage",
+        )
+        def test_mt_inrange(self):
+            """Send one contact that has the InRange bit set before/after
+            tipswitch.
+            Kernel is supposed to mark the contact with a distance > 0
+            when inrange is set but not tipswitch.
+
+            This tests the hovering capability of devices (MT_QUIRK_HOVERING).
+
+            Make sure the contact is only released from the kernel POV
+            when the inrange bit is set to 0."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 150, 200)
+            t0.tipswitch = False
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_TRACKING_ID, 0) in events
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_DISTANCE) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_DISTANCE] > 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 150
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 200
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+            t0.tipswitch = True
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_DISTANCE, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_DISTANCE] == 0
+
+            t0.tipswitch = False
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_DISTANCE) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_DISTANCE] > 0
+
+            t0.inrange = False
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        def test_mt_duplicates(self):
+            """Test the MT_QUIRK_IGNORE_DUPLICATES from the kernel.
+            If a touch is reported more than once with the same Contact ID,
+            we should only handle the first touch.
+
+            Note: this is not in MS spec, but the current kernel behaves
+            like that"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 5, 10)
+            t1 = Touch(1, 15, 20)
+            t2 = Touch(2, 50, 100)
+
+            r = uhdev.event([t0, t1, t2], contact_count=2)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_TRACKING_ID, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 5
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 10
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+
+        def test_mt_release_miss(self):
+            """send a single touch in the first slot of the device, and
+            forget to release it. The kernel is supposed to release by itself
+            the touch in 100ms.
+            Make sure that we are dealing with a new touch by resending the
+            same touch after the timeout expired, and check that the kernel
+            considers it as a separate touch (different tracking ID)"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 5, 10)
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+
+            time.sleep(0.2)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Azimuth" not in uhdev.fields,
+            "Device not compatible, missing Azimuth usage",
+        )
+        def test_mt_azimuth(self):
+            """Check for the azimtuh information bit.
+            When azimuth is presented by the device, it should be exported
+            as ABS_MT_ORIENTATION and the exported value should report a quarter
+            of circle."""
+            uhdev = self.uhdev
+
+            t0 = Touch(1, 5, 10)
+            t0.azimuth = 270
+
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            # orientation is clockwise, while Azimuth is counter clockwise
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_ORIENTATION, 90) in events
+
+    class TestPTP(TestWin8Multitouch):
+        def test_ptp_buttons(self):
+            """check for button reliability.
+            There are 2 types of touchpads: the click pads and the pressure pads.
+            Each should reliably report the BTN_LEFT events.
+            """
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            if uhdev.type == "clickpad":
+                r = uhdev.event(click=True)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 1) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 1
+
+                r = uhdev.event(click=False)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0
+            else:
+                r = uhdev.event(left=True)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 1) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 1
+
+                r = uhdev.event(left=False)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 0
+
+                r = uhdev.event(right=True)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 1) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 1
+
+                r = uhdev.event(right=False)
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                assert libevdev.InputEvent(libevdev.EV_KEY.BTN_RIGHT, 0) in events
+                assert evdev.value[libevdev.EV_KEY.BTN_RIGHT] == 0
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Confidence" not in uhdev.fields,
+            "Device not compatible, missing Confidence usage",
+        )
+        def test_ptp_confidence(self):
+            """Check for the validity of the confidence bit.
+            When a contact is marked as not confident, it should be detected
+            as a palm from the kernel POV and released.
+
+            Note: if the kernel exports ABS_MT_TOOL_TYPE, it shouldn't release
+            the touch but instead convert it to ABS_MT_TOOL_PALM."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            t0 = Touch(1, 150, 200)
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            t0.confidence = False
+            r = uhdev.event([t0])
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            if evdev.absinfo[libevdev.EV_ABS.ABS_MT_TOOL_TYPE] is not None:
+                # the kernel exports MT_TOOL_PALM
+                assert (
+                    libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_TOOL_TYPE, 2) in events
+                )
+                assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] != -1
+
+                t0.tipswitch = False
+                r = uhdev.event([t0])
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: uhdev.touches_in_a_report >= uhdev.max_contacts,
+            "Device not compatible, we can not trigger the conditions",
+        )
+        def test_ptp_non_touch_data(self):
+            """Some single finger hybrid touchpads might not provide the
+            button information in subsequent reports (only in the first report).
+
+            Emulate this and make sure we do not release the buttons in the
+            middle of the event."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            touches = [Touch(i, i * 10, i * 10 + 5) for i in range(uhdev.max_contacts)]
+            contact_count = uhdev.max_contacts
+            incr_scantime = True
+            btn_state = True
+            events = None
+            while touches:
+                t = touches[: uhdev.touches_in_a_report]
+                touches = touches[uhdev.touches_in_a_report :]
+                r = uhdev.event(
+                    t,
+                    click=btn_state,
+                    left=btn_state,
+                    contact_count=contact_count,
+                    incr_scantime=incr_scantime,
+                )
+                contact_count = 0
+                incr_scantime = False
+                btn_state = False
+                events = uhdev.next_sync_events()
+                self.debug_reports(r, uhdev, events)
+                if touches:
+                    assert len(events) == 0
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 1) in events
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_LEFT, 0) not in events
+            assert evdev.value[libevdev.EV_KEY.BTN_LEFT] == 1
+
+
+################################################################################
+#
+# Windows 7 compatible devices
+#
+################################################################################
+class Test3m_0596_0500(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test 3m_0596_0500",
+            rdesc="05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 09 01 95 01 75 01 15 00 25 01 81 02 95 07 75 01 81 03 95 01 75 08 81 03 05 01 09 30 09 31 15 00 26 ff 7f 35 00 46 00 00 95 02 75 10 81 02 c0 a1 02 15 00 26 ff 00 09 01 95 39 75 08 81 01 c0 c0 05 0d 09 0e a1 01 85 11 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 09 04 a1 01 85 10 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 3a 06 81 02 09 31 46 e8 03 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 0a 81 02 85 12 09 55 95 01 75 08 15 00 25 0a b1 02 06 00 ff 15 00 26 ff 00 85 03 09 01 75 08 95 07 b1 02 85 04 09 01 75 08 95 17 b1 02 85 05 09 01 75 08 95 47 b1 02 85 06 09 01 75 08 95 07 b1 02 85 07 09 01 75 08 95 07 b1 02 85 08 09 01 75 08 95 07 b1 02 85 09 09 01 75 08 95 3f b1 02 c0",
+            input_info=(BusType.USB, 0x0596, 0x0500),
+            max_contacts=60,
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID", "TOUCH_SIZE_SCALING"),
+        )
+
+
+class Test3m_0596_0506(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test 3m_0596_0506",
+            rdesc="05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 09 01 95 01 75 01 15 00 25 01 81 02 95 07 75 01 81 03 95 01 75 08 81 03 05 01 09 30 09 31 15 00 26 ff 7f 35 00 46 00 00 95 02 75 10 81 02 c0 a1 02 15 00 26 ff 00 09 01 95 39 75 08 81 03 c0 c0 05 0d 09 0e a1 01 85 11 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 09 04 a1 01 85 13 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 d6 0a 81 02 09 31 46 22 06 81 02 05 0d 75 10 95 01 09 48 81 02 09 49 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 3c 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 02 81 03 05 0d 85 12 09 55 95 01 75 08 15 00 25 3c b1 02 06 00 ff 15 00 26 ff 00 85 03 09 01 75 08 95 07 b1 02 85 04 09 01 75 08 95 17 b1 02 85 05 09 01 75 08 95 47 b1 02 85 06 09 01 75 08 95 07 b1 02 85 73 09 01 75 08 95 07 b1 02 85 08 09 01 75 08 95 07 b1 02 85 09 09 01 75 08 95 3f b1 02 85 0f 09 01 75 08 96 07 02 b1 02 c0",
+            input_info=(BusType.USB, 0x0596, 0x0506),
+            max_contacts=60,
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID", "TOUCH_SIZE_SCALING"),
+        )
+
+
+class TestActionStar_2101_1011(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ActionStar_2101_1011",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4d 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4d 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 05 0d 09 54 75 08 95 01 81 02 05 0d 85 02 09 55 25 02 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x2101, 0x1011),
+        )
+
+    def test_mt_actionstar_inrange(self):
+        """Special sequence that might not be handled properly"""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        # fmt: off
+        sequence = [
+            # t0 = Touch(1, 6999, 2441) | t1 = Touch(2, 15227, 2026)
+            '01 ff 01 57 1b 89 09 ff 02 7b 3b ea 07 02',
+            # t0.xy = (6996, 2450)      | t1.y = 2028
+            '01 ff 01 54 1b 92 09 ff 02 7b 3b ec 07 02',
+            # t1.xy = (15233, 2040)     | t0.tipswitch = False
+            '01 ff 02 81 3b f8 07 fe 01 54 1b 92 09 02',
+            # t1                        | t0.inrange = False
+            '01 ff 02 81 3b f8 07 fc 01 54 1b 92 09 02',
+        ]
+        # fmt: on
+
+        for num, r_str in enumerate(sequence):
+            r = [int(i, 16) for i in r_str.split()]
+            uhdev.call_input_event(r)
+            events = uhdev.next_sync_events()
+            self.debug_reports([r], uhdev)
+            for e in events:
+                print(e)
+            if num == 2:
+                assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+
+class TestAsus_computers_0486_0185(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test asus-computers_0486_0185",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 95 01 75 01 81 02 09 32 81 02 09 47 81 02 75 05 81 03 09 30 26 ff 00 75 08 81 02 09 51 25 02 81 02 26 96 0d 05 01 75 10 55 0d 65 33 09 30 35 00 46 fd 1d 81 02 09 31 46 60 11 81 02 c0 09 22 a1 02 05 0d 35 00 45 00 55 00 65 00 09 42 25 01 75 01 81 02 09 32 81 02 09 47 81 02 75 05 81 03 09 30 26 ff 00 75 08 81 02 09 51 25 02 81 02 26 96 0d 05 01 75 10 55 0d 65 33 09 30 46 fd 1d 81 02 09 31 46 60 11 81 02 c0 35 00 45 00 55 00 65 00 05 0d 09 54 75 08 25 02 81 02 85 08 09 55 b1 02 c0 09 0e a1 01 85 07 09 22 a1 00 09 52 25 0a b1 02 c0 05 0c 09 01 a1 01 85 06 09 01 26 ff 00 95 08 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 02 25 01 75 01 95 02 81 02 95 06 81 03 26 96 0d 05 01 75 10 95 01 55 0d 65 33 09 30 46 fd 1d 81 02 09 31 46 60 11 81 02 c0 c0 06 ff 01 09 01 a1 01 26 ff 00 35 00 45 00 55 00 65 00 85 05 75 08 95 3f 09 00 81 02 c0",
+            input_info=(BusType.USB, 0x0486, 0x0185),
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID_MINUS_ONE"),
+        )
+
+
+class TestAtmel_03eb_201c(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test atmel_03eb_201c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4b 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4b 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 05 0d 09 54 75 08 95 01 81 02 05 0d 85 02 09 55 25 02 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x03EB, 0x201C),
+        )
+
+
+class TestAtmel_03eb_211c(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test atmel_03eb_211c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 37 81 02 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 46 56 0a 26 ff 0f 09 30 81 02 46 b2 05 26 ff 0f 09 31 81 02 05 0d 75 08 85 02 09 55 25 10 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x03EB, 0x211C),
+        )
+
+
+class TestCando_2087_0a02(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test cando_2087_0a02",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 0f 75 10 55 0e 65 33 09 30 35 00 46 6d 03 81 02 46 ec 01 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 0f 75 10 55 0e 65 33 09 30 35 00 46 6d 03 81 02 46 ec 01 09 31 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 02 81 02 85 02 09 55 b1 02 c0 06 00 ff 09 01 a1 01 85 a6 95 22 75 08 26 ff 00 15 00 09 01 81 02 85 a5 95 06 75 08 26 ff 00 15 00 09 01 91 02 c0",
+            input_info=(BusType.USB, 0x2087, 0x0A02),
+        )
+
+
+class TestCando_2087_0b03(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test cando_2087_0b03",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 49 46 f2 03 81 02 09 31 26 ff 29 46 39 02 81 02 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 49 46 f2 03 81 02 09 31 26 ff 29 46 39 02 81 02 46 00 00 c0 05 0d 09 54 75 08 95 01 81 02 05 0d 85 02 09 55 25 02 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x2087, 0x0B03),
+        )
+
+
+class TestCVTouch_1ff7_0013(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test cvtouch_1ff7_0013",
+            rdesc="06 00 ff 09 00 a1 01 85 fd 06 00 ff 09 01 09 02 09 03 09 04 09 05 09 06 15 00 26 ff 00 75 08 95 06 81 02 85 fe 06 00 ff 09 01 09 02 09 03 09 04 15 00 26 ff 00 75 08 95 04 b1 02 c0 05 01 09 02 a1 01 09 01 a1 00 85 01 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 03 05 01 09 30 09 31 15 00 26 ff 7f 35 00 46 ff 7f 75 10 95 02 81 02 05 0d 09 33 15 00 26 ff 00 35 00 46 ff 00 75 08 95 01 81 02 05 01 09 38 15 81 25 7f 35 81 45 7f 95 01 81 06 c0 c0 06 00 ff 09 00 a1 01 85 fc 15 00 26 ff 00 19 01 29 3f 75 08 95 3f 81 02 19 01 29 3f 91 02 c0 06 00 ff 09 00 a1 01 85 fb 15 00 26 ff 00 19 01 29 3f 75 08 95 3f 81 02 19 01 29 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 85 03 09 55 15 00 25 02 b1 02 c0 09 0e a1 01 85 04 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x1FF7, 0x0013),
+            quirks=("NOT_SEEN_MEANS_UP",),
+        )
+
+
+class TestCvtouch_1ff7_0017(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test cvtouch_1ff7_0017",
+            rdesc="06 00 ff 09 00 a1 01 85 fd 06 00 ff 09 01 09 02 09 03 09 04 09 05 09 06 15 00 26 ff 00 75 08 95 06 81 02 85 fe 06 00 ff 09 01 09 02 09 03 09 04 15 00 26 ff 00 75 08 95 04 b1 02 c0 05 01 09 02 a1 01 09 01 a1 00 85 01 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 03 05 01 09 30 09 31 15 00 26 ff 0f 35 00 46 ff 0f 75 10 95 02 81 02 09 00 15 00 25 ff 35 00 45 ff 75 08 95 01 81 02 09 38 15 81 25 7f 95 01 81 06 c0 c0 06 00 ff 09 00 a1 01 85 fc 15 00 25 ff 19 01 29 3f 75 08 95 3f 81 02 19 01 29 3f 91 02 c0 06 00 ff 09 00 a1 01 85 fb 15 00 25 ff 19 01 29 3f 75 08 95 3f 81 02 19 01 29 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 0f 75 10 55 00 65 00 09 30 35 00 46 ff 0f 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 0f 75 10 55 00 65 00 09 30 35 00 46 ff 0f 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 0f 75 10 55 00 65 00 09 30 35 00 46 ff 0f 81 02 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 0f 75 10 55 00 65 00 09 30 35 00 46 ff 0f 81 02 09 31 81 02 c0 05 0d 09 54 95 01 75 08 81 02 85 03 09 55 25 02 b1 02 c0 09 0e a1 01 85 04 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x1FF7, 0x0017),
+        )
+
+
+class TestCypress_04b4_c001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test cypress_04b4_c001",
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 04 a1 01 85 02 09 22 09 53 95 01 75 08 81 02 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 15 00 25 20 09 48 81 02 09 49 81 02 05 01 15 00 26 d0 07 75 10 55 00 65 00 09 30 15 00 26 d0 07 35 00 45 00 81 02 09 31 45 00 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 0a 81 02 09 55 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x04B4, 0xC001),
+        )
+
+
+class TestData_modul_7374_1232(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test data-modul_7374_1232",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 37 81 02 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 46 d0 07 26 ff 0f 09 30 81 02 46 40 06 09 31 81 02 05 0d 75 08 85 02 09 55 25 10 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x7374, 0x1232),
+        )
+
+
+class TestData_modul_7374_1252(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test data-modul_7374_1252",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 37 81 02 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 46 d0 07 26 ff 0f 09 30 81 02 46 40 06 09 31 81 02 05 0d 75 08 85 02 09 55 25 10 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x7374, 0x1252),
+        )
+
+
+class TestE4_2219_044c(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test e4_2219_044c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 08 81 02 09 55 b1 02 c0 09 0e a1 01 85 02 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 05 01 09 30 09 31 15 00 26 ff 7f 75 10 95 02 81 02 05 01 09 38 15 81 25 7f 75 08 95 01 81 06 c0 c0",
+            input_info=(BusType.USB, 0x2219, 0x044C),
+        )
+
+
+class TestEgalax_capacitive_0eef_7224(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_7224",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 34 49 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 37 29 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 34 49 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 37 29 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x7224),
+            quirks=("SLOT_IS_CONTACTID", "ALWAYS_VALID"),
+        )
+
+
+class TestEgalax_capacitive_0eef_72fa(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_72fa",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 72 22 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 87 13 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 72 22 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 87 13 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x72FA),
+            quirks=("SLOT_IS_CONTACTID", "VALID_IS_INRANGE"),
+        )
+
+
+class TestEgalax_capacitive_0eef_7336(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_7336",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 c1 20 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 c2 18 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 c1 20 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 c2 18 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x7336),
+        )
+
+
+class TestEgalax_capacitive_0eef_7337(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_7337",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 ae 17 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 c3 0e 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 ae 17 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 c3 0e 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x7337),
+        )
+
+
+class TestEgalax_capacitive_0eef_7349(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_7349",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 34 49 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 37 29 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 34 49 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 37 29 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x7349),
+            quirks=("SLOT_IS_CONTACTID", "ALWAYS_VALID"),
+        )
+
+
+class TestEgalax_capacitive_0eef_73f4(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_73f4",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 96 4e 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 23 2c 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 96 4e 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 23 2c 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0x73F4),
+        )
+
+
+class TestEgalax_capacitive_0eef_a001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax-capacitive_0eef_a001",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 23 28 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 11 19 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0EEF, 0xA001),
+            quirks=("SLOT_IS_CONTACTID", "VALID_IS_INRANGE"),
+        )
+
+
+class TestElo_touchsystems_04e7_0022(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elo-touchsystems_04e7_0022",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 0f 75 10 55 0e 65 33 09 30 35 00 46 ff 0f 81 02 46 ff 0f 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 0f 75 10 55 00 65 00 09 30 35 00 46 ff 0f 81 02 46 ff 0f 09 31 81 02 c0 05 0d 09 54 25 10 95 01 75 08 81 02 85 08 09 55 25 02 b1 02 c0 09 0e a1 01 85 07 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 06 00 ff 09 55 85 80 15 00 26 ff 00 75 08 95 01 b1 82 c0 05 01 09 02 a1 01 85 54 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 15 00 26 ff 0f 75 10 95 01 81 02 09 31 75 10 95 01 81 02 09 3b 16 00 00 26 00 01 36 00 00 46 00 01 66 00 00 75 10 95 01 81 62 c0 c0",
+            input_info=(BusType.USB, 0x04E7, 0x0022),
+        )
+
+
+class TestElo_touchsystems_04e7_0080(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elo-touchsystems_04e7_0080",
+            rdesc="05 0d 09 04 a1 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 7c 24 75 10 95 01 09 30 81 02 09 31 46 96 14 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 7c 24 75 10 95 01 09 30 81 02 09 31 46 96 14 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 7c 24 75 10 95 01 09 30 81 02 09 31 46 96 14 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 7c 24 75 10 95 01 09 30 81 02 09 31 46 96 14 81 02 c0 05 0d 09 54 75 08 95 01 15 00 25 08 81 02 09 55 b1 02 c0",
+            input_info=(BusType.USB, 0x04E7, 0x0080),
+        )
+
+
+class TestFlatfrog_25b5_0002(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test flatfrog_25b5_0002",
+            rdesc="05 0d 09 04 a1 01 85 05 09 22 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 05 0d 09 22 65 00 55 00 a1 02 05 0d 15 00 25 01 75 01 95 01 09 42 81 02 09 32 81 02 95 06 81 03 75 08 95 01 25 7f 09 51 81 02 05 01 65 11 55 0e 75 10 35 00 26 a6 2b 46 48 1b 09 30 81 02 26 90 18 46 59 0f 09 31 81 02 05 0d 65 11 55 0f 75 08 25 7f 45 7f 09 48 81 02 09 49 81 02 65 00 55 00 75 10 26 00 04 46 00 04 09 30 81 02 c0 65 00 55 00 05 0d 55 0c 66 01 10 75 20 95 01 27 ff ff ff 7f 45 00 09 56 81 02 75 08 95 01 15 00 25 28 09 54 81 02 09 55 85 06 25 28 b1 02 c0 65 00 55 00 45 00 09 0e a1 01 85 03 09 23 a1 02 09 52 15 02 25 02 75 08 95 01 b1 02 09 53 15 00 25 0a 75 08 95 01 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x25B5, 0x0002),
+            quirks=("NOT_SEEN_MEANS_UP", "NO_AREA"),
+            max_contacts=40,
+        )
+
+
+class TestFocaltech_10c4_81b9(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test focaltech_10c4_81b9",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 04 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 26 58 02 09 31 46 00 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 04 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 26 58 02 09 31 46 00 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 04 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 26 58 02 09 31 46 00 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 04 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 26 58 02 09 31 46 00 00 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 04 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 26 58 02 09 31 46 00 00 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 08 81 02 85 02 09 55 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x10C4, 0x81B9),
+            quirks=("ALWAYS_VALID",),
+            max_contacts=5,
+        )
+
+
+class TestHanvon_20b3_0a18(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test hanvon_20b3_0a18",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4b 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 26 ff 4b 46 70 03 81 02 09 31 26 ff 2b 46 f1 01 81 02 46 00 00 c0 05 0d 09 54 75 08 95 01 81 02 05 0d 85 02 09 55 25 02 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x20B3, 0x0A18),
+        )
+
+
+class TestHuitoo_03f7_0003(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test huitoo_03f7_0003",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 00 65 00 35 00 46 ff 0f 09 30 26 ff 0f 81 02 09 31 26 ff 0f 81 02 05 0d 09 48 26 ff 0f 81 02 09 49 26 ff 0f 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 08 81 02 09 55 b1 02 c0 09 0e a1 01 85 02 09 23 a1 02 09 52 09 53 15 00 25 10 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 05 01 09 30 09 31 15 00 26 ff 0f 35 00 46 ff 0f 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 3f 09 02 81 02 95 3f 09 02 91 02 c0",
+            input_info=(BusType.USB, 0x03F7, 0x0003),
+        )
+
+
+class TestIdeacom_1cb6_6650(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ideacom_1cb6_6650",
+            rdesc="05 0d 09 04 a1 01 85 0a 09 22 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 81 03 05 01 26 ff 1f 75 10 95 01 55 0d 65 33 09 31 35 00 46 61 13 81 02 09 30 46 73 22 81 02 05 0d 75 08 95 01 09 30 26 ff 00 81 02 09 51 81 02 85 0c 09 55 25 02 95 01 b1 02 c0 06 00 ff 85 02 09 01 75 08 95 07 b1 02 85 03 09 02 75 08 95 07 b1 02 85 04 09 03 75 08 95 07 b1 02 85 05 09 04 75 08 95 07 b1 02 85 06 09 05 75 08 96 27 00 b1 02 85 07 09 06 75 08 96 27 00 b1 02 85 08 09 07 75 08 95 07 b1 02 85 09 09 08 75 08 95 07 b1 02 85 0b 09 09 75 08 96 07 00 b1 02 85 0d 09 0a 75 08 96 27 00 b1 02 c0 09 0e a1 01 85 0e 09 52 09 53 95 07 b1 02 c0 05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 75 06 95 01 81 01 05 01 09 31 09 30 15 00 27 ff 1f 00 00 75 10 95 02 81 02 c0 09 01 a1 02 15 00 26 ff 00 95 02 75 08 81 03 c0 c0",
+            input_info=(BusType.USB, 0x1CB6, 0x6650),
+        )
+
+
+class TestIdeacom_1cb6_6651(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ideacom_1cb6_6651",
+            rdesc="05 0d 09 04 a1 01 85 0a 09 22 a1 02 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 81 03 05 01 26 ff 1f 75 10 95 01 55 0d 65 33 09 31 35 00 46 39 13 81 02 09 30 46 24 22 81 02 05 0d 75 08 95 01 09 30 26 ff 00 81 02 09 51 81 02 85 0c 09 55 25 02 95 01 b1 02 c0 06 00 ff 85 02 09 01 75 08 95 07 b1 02 85 03 09 02 75 08 95 07 b1 02 85 04 09 03 75 08 95 07 b1 02 85 05 09 04 75 08 95 07 b1 02 85 06 09 05 75 08 95 1f b1 02 85 07 09 06 75 08 96 1f 00 b1 02 85 08 09 07 75 08 95 07 b1 02 85 09 09 08 75 08 95 07 b1 02 85 0b 09 09 75 08 95 07 b1 02 85 0d 09 0a 75 08 96 1f 00 b1 02 c0 09 0e a1 01 85 0e 09 52 09 53 95 07 b1 02 c0 05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 75 06 95 01 81 01 05 01 09 31 09 30 15 00 27 ff 1f 00 00 75 10 95 02 81 02 c0 09 01 a1 02 15 00 26 ff 00 95 02 75 08 81 03 c0 c0",
+            input_info=(BusType.USB, 0x1CB6, 0x6651),
+        )
+
+
+class TestIkaist_2793_0001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ikaist_2793_0001",
+            rdesc="05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 09 01 95 01 75 01 15 00 25 01 81 02 95 07 75 01 81 03 95 01 75 08 81 03 05 01 09 30 09 31 15 00 26 ff 7f 35 00 46 00 00 95 02 75 10 81 02 c0 a1 02 15 00 26 ff 00 09 01 95 39 75 08 81 03 c0 c0 05 0d 09 0e a1 01 85 11 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 09 04 a1 01 85 13 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 33 09 30 35 00 46 51 07 81 02 09 31 46 96 04 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 3c 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 02 81 03 05 0d 85 12 09 55 95 01 75 08 15 00 25 3c b1 02 06 00 ff 15 00 26 ff 00 85 1e 09 01 75 08 95 80 b1 02 85 1f 09 01 75 08 96 3f 01 b1 02 c0",
+            input_info=(BusType.USB, 0x2793, 0x0001),
+        )
+
+
+class TestIrmtouch_23c9_5666(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test irmtouch_23c9_5666",
+            rdesc="05 0d 09 04 a1 01 85 0a 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 15 00 26 ff 7f 75 10 09 30 81 02 09 31 81 02 05 0d 09 48 09 49 95 02 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 55 25 06 b1 02 c0 09 0e a1 01 85 0c 09 23 a1 02 09 52 15 00 25 06 75 08 95 01 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x23C9, 0x5666),
+        )
+
+
+class TestIrtouch_6615_0070(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test irtouch_6615_0070",
+            rdesc="05 01 09 02 a1 01 85 10 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 06 81 03 05 01 09 30 09 31 15 00 26 ff 7f 75 10 95 02 81 02 c0 c0 05 0d 09 04 a1 01 85 30 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 c0 05 0d 09 54 15 00 26 02 00 75 08 95 01 81 02 85 03 09 55 15 00 26 ff 00 75 08 95 01 b1 02 c0 05 0d 09 0e a1 01 85 02 09 52 09 53 15 00 26 ff 00 75 08 95 02 b1 02 c0 05 0d 09 02 a1 01 85 20 09 20 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 85 01 06 00 ff 09 01 75 08 95 01 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x6615, 0x0070),
+        )
+
+
+class TestIrtouch_6615_0081(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test irtouch_6615_0081",
+            rdesc="05 0d 09 04 a1 01 85 30 09 22 09 00 15 00 26 ff 00 75 08 95 05 81 02 a1 00 05 0d 09 51 15 00 26 ff 00 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0e 65 13 35 00 46 b5 04 75 10 95 01 81 02 09 31 35 00 46 8a 03 81 02 09 32 35 00 46 8a 03 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 00 15 00 26 ff 00 75 08 95 01 81 02 c0 a1 00 05 0d 09 51 15 00 26 ff 00 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0e 65 13 35 00 46 b5 04 75 10 95 01 81 02 09 31 35 00 46 8a 03 81 02 09 32 35 00 46 8a 03 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 00 15 00 26 ff 00 75 08 95 01 81 02 c0 a1 00 05 0d 09 51 15 00 26 ff 00 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0e 65 13 35 00 46 b5 04 75 10 95 01 81 02 09 31 35 00 46 8a 03 81 02 09 32 35 00 46 8a 03 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 09 00 15 00 26 ff 7f 75 10 95 01 81 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 00 15 00 26 ff 00 75 08 95 01 81 02 c0 a1 00 05 0d 09 54 15 00 25 1f 75 05 95 01 81 02 09 00 15 00 25 07 75 03 95 01 81 02 09 00 15 00 26 ff 00 75 08 95 01 81 02 c0 09 55 85 03 15 00 26 ff 00 75 08 95 01 b1 02 c0 05 0d 09 0e a1 01 85 02 09 52 09 53 15 00 26 ff 00 75 08 95 02 b1 02 c0 06 00 ff 09 00 a1 01 09 02 a1 00 85 aa 09 06 15 00 26 ff 00 35 00 46 ff 00 75 08 95 3f b1 02 c0 c0 05 01 09 02 a1 01 85 10 09 01 a1 00 05 01 09 00 15 00 26 ff 00 75 08 95 05 81 02 09 30 09 31 09 32 15 00 26 ff 7f 75 10 95 03 81 02 05 09 19 01 29 08 15 00 25 01 95 08 75 01 81 02 09 00 15 00 26 ff 00 75 08 95 02 81 02 c0 c0 06 00 ff 09 00 a1 01 85 40 09 00 15 00 26 ff 00 75 08 95 2e 81 02 c0",
+            input_info=(BusType.USB, 0x6615, 0x0081),
+        )
+
+
+class TestLG_043e_9aa1(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test lg_043e_9aa1",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 09 31 46 78 0a 26 38 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 0a 81 02 25 0a 09 55 b1 02 c0 09 0e a1 01 85 03 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 04 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 75 10 95 01 15 00 26 7f 07 81 02 09 31 26 37 04 81 02 c0 c0 06 00 ff 09 01 a1 01 85 05 15 00 26 ff 00 75 08 95 19 09 01 b1 02 c0 05 14 09 2b a1 02 85 07 09 2b 15 00 25 0a 75 08 95 40 b1 02 09 4b 15 00 25 0a 75 08 95 02 91 02 c0 05 14 09 2c a1 02 85 08 09 2b 15 00 25 0a 75 08 95 05 81 02 09 4b 15 00 25 0a 75 08 95 47 91 02 c0",
+            input_info=(BusType.USB, 0x043E, 0x9AA1),
+        )
+
+
+class TestLG_043e_9aa3(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test lg_043e_9aa3",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 09 31 46 78 0a 26 38 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 0a 81 02 25 0a 09 55 b1 02 c0 09 0e a1 01 85 03 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 04 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 75 10 95 01 15 00 26 7f 07 81 02 09 31 26 37 04 81 02 c0 c0 06 00 ff 09 01 a1 01 85 05 15 00 26 ff 00 75 08 95 19 09 01 b1 02 c0 05 14 09 2b a1 02 85 07 09 2b 15 00 25 0a 75 08 95 40 b1 02 09 4b 15 00 25 0a 75 08 95 02 91 02 c0 05 14 09 2c a1 02 85 08 09 2b 15 00 25 0a 75 08 95 05 81 02 09 4b 15 00 25 0a 75 08 95 47 91 02 c0",
+            input_info=(BusType.USB, 0x043E, 0x9AA3),
+        )
+
+
+class TestLG_1fd2_0064(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test lg_1fd2_0064",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 a1 00 05 01 26 80 07 75 10 55 0e 65 33 09 30 35 00 46 53 07 81 02 26 38 04 46 20 04 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 a1 00 05 01 26 80 07 75 10 55 0e 65 33 09 30 35 00 46 53 07 81 02 26 38 04 46 20 04 09 31 81 02 45 00 c0 c0 05 0d 09 54 95 01 75 08 81 02 85 08 09 55 95 01 25 02 b1 02 c0 09 0e a1 01 85 07 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 75 10 95 02 15 00 26 ff 7f 81 02 c0 c0",
+            input_info=(BusType.USB, 0x1FD2, 0x0064),
+        )
+
+
+class TestLumio_202e_0006(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test lumio_202e_0006",
+            rdesc="05 0d 09 04 a1 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 b0 0e 75 10 95 01 09 30 81 02 09 31 46 c2 0b 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 b0 0e 75 10 95 01 09 30 81 02 09 31 46 c2 0b 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 b0 0e 75 10 95 01 09 30 81 02 09 31 46 c2 0b 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 46 b0 0e 75 10 95 01 09 30 81 02 09 31 46 c2 0b 81 02 c0 05 0d 09 54 75 08 95 01 15 00 25 08 81 02 09 55 b1 02 c0",
+            input_info=(BusType.USB, 0x202E, 0x0006),
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID_MINUS_ONE"),
+        )
+
+
+class TestLumio_202e_0007(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test lumio_202e_0007",
+            rdesc="05 0d 09 04 a1 01 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 09 47 95 02 81 02 95 0a 81 03 05 01 26 ff 7f 65 11 55 0e 46 ba 0e 75 10 95 01 09 30 81 02 09 31 46 ea 0b 81 02 05 0d 09 51 75 10 95 01 81 02 09 55 15 00 25 08 75 08 95 01 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x202E, 0x0007),
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID_MINUS_ONE"),
+        )
+
+
+class TestNexio_1870_0100(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test nexio_1870_0100",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 02 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 40 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x0100),
+        )
+
+
+class TestNexio_1870_010d(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test nexio_1870_010d",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 06 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 3e 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x010D),
+        )
+
+
+class TestNexio_1870_0119(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test nexio_1870_0119",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 06 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 3e 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x0119),
+        )
+
+
+class TestPenmount_14e1_3500(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test penmount_14e1_3500",
+            rdesc="05 0d 09 04 a1 01 09 22 a1 00 09 51 15 00 25 0f 75 04 95 01 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 81 01 05 01 75 10 95 01 09 30 26 ff 07 81 02 09 31 26 ff 07 81 02 05 0d 09 55 75 08 95 05 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x14E1, 0x3500),
+            quirks=("VALID_IS_CONFIDENCE",),
+            max_contacts=10,
+        )
+
+
+class TestPixart_093a_8002(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test pixart_093a_8002",
+            rdesc="05 01 09 02 a1 01 85 0d 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 03 05 01 55 0e 65 11 75 10 95 01 35 00 46 5a 14 26 ff 7f 09 30 81 22 46 72 0b 26 ff 7f 09 31 81 22 95 08 75 08 81 03 c0 c0 05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 5a 14 26 ff 7f 81 02 09 31 46 72 0b 26 ff 7f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 5a 14 26 ff 7f 81 02 46 72 0b 26 ff 7f 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 c0 05 0d 09 0e a1 01 06 00 ff 09 01 26 ff 00 75 08 95 47 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 09 01 95 0f 85 07 b1 02 09 01 96 ff 03 85 08 b1 02 09 01 96 ff 03 85 09 b1 02 09 01 95 3f 85 0a b1 02 09 01 96 ff 03 85 0b b1 02 09 01 96 c3 03 85 0e b1 02 09 01 96 ff 03 85 0f b1 02 09 01 96 83 03 85 10 b1 02 09 01 96 93 00 85 11 b1 02 09 01 96 ff 03 85 12 b1 02 05 0d 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 85 0c b1 02 c0 c0",
+            input_info=(BusType.USB, 0x093A, 0x8002),
+            quirks=("VALID_IS_INRANGE", "SLOT_IS_CONTACTNUMBER"),
+        )
+
+
+class TestPqlabs_1ef1_0001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test pqlabs_1ef1_0001",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 02 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 3f 81 02 c0 c0 05 8c 09 07 a1 01 85 11 09 02 15 00 26 ff 00 75 08 95 3f 81 02 85 10 09 10 91 02 c0",
+            input_info=(BusType.USB, 0x1EF1, 0x0001),
+        )
+
+
+class TestQuanta_0408_3000(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test quanta_0408_3000",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 e3 13 26 7f 07 81 02 09 31 46 2f 0b 26 37 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 e3 13 26 7f 07 81 02 46 2f 0b 26 37 04 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 06 00 ff 09 01 26 ff 00 75 08 95 2f 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 c0",
+            input_info=(BusType.USB, 0x0408, 0x3000),
+        )
+
+
+class TestQuanta_0408_3001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test quanta_0408_3001",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 09 31 46 78 0a 26 38 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 80 07 81 02 46 78 0a 26 38 04 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 06 00 ff 09 01 26 ff 00 75 08 95 47 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 09 01 95 0f 85 07 b1 02 09 01 96 ff 03 85 08 b1 02 09 01 96 ff 03 85 09 b1 02 09 01 95 0f 85 0a b1 02 09 01 96 ff 03 85 0b b1 02 c0",
+            input_info=(BusType.USB, 0x0408, 0x3001),
+            quirks=("VALID_IS_CONFIDENCE", "SLOT_IS_CONTACTID"),
+        )
+
+
+class TestQuanta_0408_3008_1(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test quanta_0408_3008_1",
+            rdesc="05 01 09 02 a1 01 85 0d 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 03 05 01 55 0e 65 11 75 10 95 01 35 00 46 4c 11 26 7f 07 09 30 81 22 46 bb 09 26 37 04 09 31 81 22 95 08 75 08 81 03 c0 c0 05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 4c 11 26 7f 07 81 02 09 31 46 bb 09 26 37 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 4c 11 26 7f 07 81 02 46 bb 09 26 37 04 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 c0 05 0d 09 0e a1 01 06 00 ff 09 01 26 ff 00 75 08 95 47 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 09 01 95 0f 85 07 b1 02 09 01 96 ff 03 85 08 b1 02 09 01 96 ff 03 85 09 b1 02 09 01 95 3f 85 0a b1 02 09 01 96 ff 03 85 0b b1 02 09 01 96 c3 03 85 0e b1 02 09 01 96 ff 03 85 0f b1 02 09 01 96 83 03 85 10 b1 02 09 01 96 93 00 85 11 b1 02 09 01 96 ff 03 85 12 b1 02 05 0d 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 85 0c b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0408, 0x3008),
+        )
+
+
+class TestQuanta_0408_3008(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test quanta_0408_3008",
+            rdesc="05 01 09 02 a1 01 85 0d 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 03 05 01 55 0e 65 11 75 10 95 01 35 00 46 98 12 26 7f 07 09 30 81 22 46 78 0a 26 37 04 09 31 81 22 c0 c0 05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 7f 07 81 02 09 31 46 78 0a 26 37 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 7f 07 81 02 46 78 0a 26 37 04 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 c0 05 0d 09 0e a1 01 06 00 ff 09 01 26 ff 00 75 08 95 47 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 09 01 95 0f 85 07 b1 02 09 01 96 ff 03 85 08 b1 02 09 01 96 ff 03 85 09 b1 02 09 01 95 3f 85 0a b1 02 09 01 96 ff 03 85 0b b1 02 09 01 96 c3 03 85 0e b1 02 09 01 96 ff 03 85 0f b1 02 09 01 96 83 03 85 10 b1 02 09 01 96 93 00 85 11 b1 02 09 01 96 ff 03 85 12 b1 02 05 0d 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 85 0c b1 02 c0 c0",
+            input_info=(BusType.USB, 0x0408, 0x3008),
+        )
+
+
+class TestRafi_05bd_0107(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test rafi_05bd_0107",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 65 00 55 00 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 25 09 95 01 81 02 05 01 46 9c 01 26 ff 03 35 00 75 10 09 30 81 02 46 e7 00 26 ff 03 09 31 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 09 81 02 05 0d 85 02 95 01 75 08 09 55 25 0a b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 05 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 06 81 03 05 01 65 11 55 0f 09 30 26 ff 03 35 00 46 9c 01 75 10 95 01 81 02 09 31 26 ff 03 35 00 46 e7 00 81 02 c0 c0",
+            input_info=(BusType.USB, 0x05BD, 0x0107),
+        )
+
+
+class TestRndplus_2512_5003(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test rndplus_2512_5003",
+            rdesc="05 0d 09 04 a1 01 85 02 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 08 81 02 85 08 09 55 b1 02 c0 09 0e a1 01 85 07 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 05 01 09 30 09 31 16 00 00 26 ff 3f 36 00 00 46 ff 3f 66 00 00 75 10 95 02 81 62 c0 c0",
+            input_info=(BusType.USB, 0x2512, 0x5003),
+        )
+
+
+class TestRndplus_2512_5004(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test rndplus_2512_5004",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 00 65 00 09 30 35 00 46 00 00 81 02 09 31 46 00 00 81 02 05 0d 09 48 09 49 75 10 95 02 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 08 81 02 85 05 09 55 b1 02 c0 09 0e a1 01 85 06 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 95 03 75 01 81 02 95 01 75 05 81 01 05 01 09 30 09 31 16 00 00 26 ff 3f 36 00 00 46 ff 3f 66 00 00 75 10 95 02 81 62 c0 c0 06 00 ff 09 01 a1 01 85 01 09 01 15 00 26 ff 00 75 08 95 3f 82 00 01 85 02 09 01 15 00 26 ff 00 75 08 95 3f 92 00 01 c0",
+            input_info=(BusType.USB, 0x2512, 0x5004),
+        )
+
+
+class TestSitronix_1403_5001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test sitronix_1403_5001",
+            rdesc="05 0d 09 04 a1 01 85 01 09 54 95 01 75 08 81 02 09 22 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 05 01 26 90 04 75 0c 95 01 55 0f 65 11 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 a4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 02 09 48 09 49 81 02 c0 a1 02 09 51 75 06 95 01 81 02 09 42 09 32 15 00 25 01 75 01 95 02 81 02 b4 09 30 46 e1 00 81 02 26 50 03 09 31 45 7d 81 02 05 0d 75 08 95 04 09 48 09 49 81 02 c0 85 02 09 55 26 ff 00 75 08 95 01 b1 02 09 04 15 00 25 ff 75 08 95 07 91 02 c0 09 0e a1 01 85 03 09 23 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x1403, 0x5001),
+            max_contacts=10,
+        )
+
+
+class TestSmart_0b8c_0092(BaseTest.TestMultitouch):
+    def create_device(self):
+        return SmartTechDigitizer(
+            "uhid test smart_0b8c_0092", input_info=(BusType.USB, 0x0B8C, 0x0092)
+        )
+
+
+class TestStantum_1f87_0002(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test stantum_1f87_0002",
+            rdesc="05 0d 09 04 a1 01 85 03 05 0d 09 54 95 01 75 08 81 02 06 00 ff 75 02 09 01 81 01 75 0e 09 02 81 02 05 0d 09 22 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 a1 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 30 81 02 05 0d 25 1f 75 05 09 48 81 02 05 01 16 00 00 26 ff 07 75 0b 55 00 65 00 09 31 81 02 05 0d 25 1f 75 05 09 49 81 02 75 08 09 51 95 01 81 02 09 30 75 05 81 02 09 42 15 00 25 01 75 01 95 01 81 02 09 47 81 02 09 32 81 02 c0 85 08 05 0d 09 55 95 01 75 08 25 0a b1 02 c0",
+            input_info=(BusType.USB, 0x1F87, 0x0002),
+        )
+
+
+class TestTopseed_1784_0016(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test topseed_1784_0016",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 04 75 10 55 00 65 00 09 30 35 00 46 ff 04 81 02 09 31 46 ff 04 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 0a 81 02 09 55 b1 02 c0 05 0c 09 01 a1 01 85 03 a1 02 09 b5 15 00 25 01 75 01 95 01 81 02 09 b6 81 02 09 b7 81 02 09 cd 81 02 09 e2 81 02 09 e9 81 02 09 ea 81 02 05 01 09 82 81 02 c0 c0",
+            input_info=(BusType.USB, 0x1784, 0x0016),
+            max_contacts=2,
+        )
+
+
+class TestTpv_25aa_8883(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test tpv_25aa_8883",
+            rdesc="05 01 09 02 a1 01 85 0d 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 05 0d 09 32 95 01 75 01 81 02 95 01 75 05 81 03 05 01 55 0e 65 11 75 10 95 01 35 00 46 98 12 26 7f 07 09 30 81 22 46 78 0a 26 37 04 09 31 81 22 35 00 45 00 15 81 25 7f 75 08 95 01 09 38 81 06 09 00 75 08 95 07 81 03 c0 c0 05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 7f 07 81 02 09 31 46 78 0a 26 37 04 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 75 10 55 0e 65 11 09 30 35 00 46 98 12 26 7f 07 81 02 46 78 0a 26 37 04 09 31 81 02 c0 05 0d 09 54 15 00 26 ff 00 95 01 75 08 81 02 09 55 25 02 95 01 85 02 b1 02 c0 05 0d 09 0e a1 01 06 00 ff 09 01 26 ff 00 75 08 95 47 85 03 b1 02 09 01 96 ff 03 85 04 b1 02 09 01 95 0b 85 05 b1 02 09 01 96 ff 03 85 06 b1 02 09 01 95 0f 85 07 b1 02 09 01 96 ff 03 85 08 b1 02 09 01 96 ff 03 85 09 b1 02 09 01 95 3f 85 0a b1 02 09 01 96 ff 03 85 0b b1 02 09 01 96 c3 03 85 0e b1 02 09 01 96 ff 03 85 0f b1 02 09 01 96 83 03 85 10 b1 02 09 01 96 93 00 85 11 b1 02 09 01 96 ff 03 85 12 b1 02 05 0d 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 85 0c b1 02 c0 c0",
+            input_info=(BusType.USB, 0x25AA, 0x8883),
+        )
+
+
+class TestTrs_star_238f_0001(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test trs-star_238f_0001",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 95 01 81 03 09 37 95 01 81 03 95 01 81 03 15 00 25 0f 75 04 09 51 95 01 81 02 09 54 95 01 81 02 09 55 95 01 81 02 05 01 26 ff 03 15 00 75 10 65 00 09 30 95 01 81 02 09 31 81 02 c0 05 0d 09 0e 85 02 09 23 a1 02 15 00 25 0a 09 52 75 08 95 01 b1 02 09 53 95 01 b1 02 09 55 95 01 b1 02 c0 c0",
+            input_info=(BusType.USB, 0x238F, 0x0001),
+        )
+
+
+class TestUnitec_227d_0103(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test unitec_227d_0103",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 16 00 00 26 ff 4f 36 00 00 46 6c 03 81 02 09 31 16 00 00 26 ff 3b 36 00 00 46 ed 01 81 02 26 00 00 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 16 00 00 26 ff 4f 36 00 00 46 6c 03 81 02 09 31 16 00 00 26 ff 3b 36 00 00 46 ed 01 81 02 26 00 00 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 16 00 00 26 ff 4f 36 00 00 46 6c 03 81 02 09 31 16 00 00 26 ff 3b 36 00 00 46 ed 01 81 02 26 00 00 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 16 00 00 26 ff 4f 36 00 00 46 6c 03 81 02 09 31 16 00 00 26 ff 3b 36 00 00 46 ed 01 81 02 26 00 00 46 00 00 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 35 00 55 0e 65 33 75 10 95 01 09 30 16 00 00 26 ff 4f 36 00 00 46 6c 03 81 02 09 31 16 00 00 26 ff 3b 36 00 00 46 ed 01 81 02 26 00 00 46 00 00 c0 05 0d 09 54 75 08 95 01 81 02 05 0d 85 03 09 55 25 05 75 08 95 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 53 15 00 25 05 75 08 95 01 b1 02 c0",
+            input_info=(BusType.USB, 0x227D, 0x0103),
+        )
+
+
+class TestZytronic_14c8_0005(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test zytronic_14c8_0005",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 95 01 81 02 95 06 81 01 05 01 26 00 10 75 10 95 01 65 00 09 30 81 02 09 31 46 00 10 81 02 05 0d 09 51 26 ff 00 75 08 95 01 81 02 c0 85 02 09 55 15 00 25 08 75 08 95 01 b1 02 c0 05 0d 09 0e a1 01 85 03 a1 02 09 23 09 52 09 53 15 00 25 08 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 15 00 26 00 10 35 00 46 00 10 65 00 75 10 95 02 81 62 c0 c0 06 00 ff 09 01 a1 01 85 05 09 00 15 00 26 ff 00 75 08 95 3f b1 02 c0 06 00 ff 09 01 a1 01 85 06 09 00 15 00 26 ff 00 75 08 95 3f 81 02 c0",
+            input_info=(BusType.USB, 0x14C8, 0x0005),
+        )
+
+
+class TestZytronic_14c8_0006(BaseTest.TestMultitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test zytronic_14c8_0006",
+            rdesc="05 0d 09 04 a1 01 85 01 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 00 10 75 10 09 30 81 02 09 31 81 02 05 0d c0 05 0d 09 54 95 01 75 08 15 00 25 3c 81 02 05 0d 85 02 09 55 95 01 75 08 15 00 25 3c b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 15 00 26 00 10 35 00 46 00 10 65 00 75 10 95 02 81 62 c0 c0 06 00 ff 09 01 a1 01 85 05 09 00 15 00 26 ff 00 75 08 95 3f b1 02 c0 06 00 ff 09 01 a1 01 85 06 09 00 15 00 26 ff 00 75 08 95 3f 81 02 c0",
+            input_info=(BusType.USB, 0x14C8, 0x0006),
+        )
+
+
+################################################################################
+#
+# Windows 8 compatible devices
+#
+################################################################################
+
+
+class TestMinWin8TSParallelTriple(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return MinWin8TSParallel(3)
+
+
+class TestMinWin8TSParallel(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return MinWin8TSParallel(10)
+
+
+class TestMinWin8TSHybrid(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return MinWin8TSHybrid()
+
+
+class TestWin8TSConfidence(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Win8TSConfidence(5)
+
+    @pytest.mark.skip_if_uhdev(
+        lambda uhdev: "Confidence" not in uhdev.fields,
+        "Device not compatible, missing Confidence usage",
+    )
+    def test_mt_confidence_bad_release(self):
+        """Check for the validity of the confidence bit.
+        When a contact is marked as not confident, it should be detected
+        as a palm from the kernel POV and released.
+
+        Note: if the kernel exports ABS_MT_TOOL_TYPE, it shouldn't release
+        the touch but instead convert it to ABS_MT_TOOL_PALM."""
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        t0 = Touch(1, 150, 200)
+        r = uhdev.event([t0])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        t0.confidence = False
+        t0.tipswitch = False
+        r = uhdev.event([t0])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        if evdev.absinfo[libevdev.EV_ABS.ABS_MT_TOOL_TYPE] is not None:
+            # the kernel exports MT_TOOL_PALM
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_TOOL_TYPE, 2) in events
+
+        assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+        assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+
+    @pytest.mark.skip_if_uhdev(
+        lambda uhdev: "Confidence" not in uhdev.fields,
+        "Device not compatible, missing Confidence usage",
+    )
+    def test_mt_confidence_bad_multi_release(self):
+        """Check for the sticky finger being properly detected.
+
+        We first inject 3 fingers, then release only the second.
+        After 100 ms, we should receive a generated event about the
+        2 missing fingers being released.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        # send 3 touches
+        t0 = Touch(1, 50, 10)
+        t1 = Touch(2, 150, 100)
+        t2 = Touch(3, 250, 200)
+        r = uhdev.event([t0, t1, t2])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        # release the second
+        t1.tipswitch = False
+        r = uhdev.event([t1])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        # only the second is released
+        assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] != -1
+        assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+        assert evdev.slots[2][libevdev.EV_ABS.ABS_MT_TRACKING_ID] != -1
+
+        # wait for the timer to kick in
+        time.sleep(0.2)
+
+        events = uhdev.next_sync_events()
+        self.debug_reports([], uhdev, events)
+
+        # now all 3 fingers are released
+        assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+        assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+        assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+        assert evdev.slots[2][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+
+class TestElanXPS9360(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ElanXPS9360",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 a4 26 20 0d 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 50 07 46 a6 00 09 31 81 02 b4 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class TestTouchpadXPS9360(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test TouchpadXPS9360",
+            max_contacts=5,
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 03 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c0 04 75 10 55 0e 65 11 09 30 35 00 46 f5 03 95 01 81 02 46 36 02 26 a8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c0 04 75 10 55 0e 65 11 09 30 35 00 46 f5 03 95 01 81 02 46 36 02 26 a8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c0 04 75 10 55 0e 65 11 09 30 35 00 46 f5 03 95 01 81 02 46 36 02 26 a8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c0 04 75 10 55 0e 65 11 09 30 35 00 46 f5 03 95 01 81 02 46 36 02 26 a8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c0 04 75 10 55 0e 65 11 09 30 35 00 46 f5 03 95 01 81 02 46 36 02 26 a8 02 09 31 81 02 c0 05 0d 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 08 09 55 09 59 75 04 95 02 25 0f b1 02 85 0d 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 06 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 14 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 14 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 3d 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 3d 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 03 b1 02 85 0e 09 07 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+        )
+
+
+class TestSurfaceBook2(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test SurfaceBook2",
+            max_contacts=5,
+            rdesc="05 01 09 06 A1 01 85 01 14 25 01 75 01 95 08 05 07 19 E0 29 E7 81 02 75 08 95 0A 18 29 91 26 FF 00 80 05 0C 0A C0 02 A1 02 1A C1 02 2A C6 02 95 06 B1 03 C0 05 08 19 01 29 03 75 01 95 03 25 01 91 02 95 05 91 01 C0 05 01 09 02 A1 01 85 02 05 09 19 01 29 05 81 02 95 01 75 03 81 03 15 81 25 7F 75 08 95 02 05 01 09 30 09 31 81 06 A1 02 09 48 14 25 01 35 01 45 10 75 02 95 01 A4 B1 02 09 38 15 81 25 7F 34 44 75 08 81 06 C0 A1 02 09 48 B4 B1 02 34 44 75 04 B1 03 05 0C 0A 38 02 15 81 25 7F 75 08 81 06 C0 C0 05 0C 09 01 A1 01 85 03 75 10 14 26 FF 03 18 2A FF 03 80 C0 06 05 FF 09 01 A1 01 85 0D 25 FF 95 02 75 08 09 20 81 02 09 22 91 02 15 81 25 7F 95 20 75 08 09 21 81 02 09 23 91 02 C0 09 02 A1 01 85 0C 14 25 FF 95 01 08 91 02 C0 05 0D 09 05 A1 01 85 04 09 22 A1 02 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 03 09 51 81 02 75 01 95 03 81 03 05 01 26 E4 07 75 10 55 0E 65 11 09 30 46 F2 03 95 01 81 02 46 94 02 26 29 05 09 31 81 02 44 54 64 C0 05 0D 09 22 A1 02 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 03 09 51 81 02 75 01 95 03 81 03 05 01 26 E4 07 75 10 55 0E 65 11 09 30 46 F2 03 95 01 81 02 46 94 02 26 29 05 09 31 81 02 44 54 64 C0 05 0D 09 22 A1 02 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 03 09 51 81 02 75 01 95 03 81 03 05 01 26 E4 07 75 10 55 0E 65 11 09 30 46 F2 03 95 01 81 02 46 94 02 26 29 05 09 31 81 02 C0 05 0D 09 22 A1 02 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 03 09 51 81 02 75 01 95 03 81 03 05 01 26 E4 07 75 10 55 0E 65 11 09 30 46 F2 03 95 01 81 02 46 94 02 26 29 05 09 31 81 02 44 54 64 C0 05 0D 09 22 A1 02 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 03 09 51 81 02 75 01 95 03 81 03 05 01 26 E4 07 75 10 55 0E 65 11 09 30 46 F2 03 95 01 81 02 46 94 02 26 29 05 09 31 81 02 C0 05 0D 55 0C 66 01 10 47 FF FF 00 00 27 FF FF 00 00 09 56 81 02 09 54 25 7F 75 08 81 02 05 09 09 01 25 01 75 01 81 02 95 07 81 03 05 0D 85 04 09 55 09 59 75 04 95 02 25 0F B1 02 06 00 FF 09 C6 85 05 14 25 08 75 08 95 01 B1 02 09 C7 26 FF 00 75 08 95 20 B1 02 C0 05 0D 09 0E A1 01 85 07 09 22 A1 02 09 52 14 25 0A 75 08 95 01 B1 02 C0 09 22 A0 85 08 09 57 09 58 75 01 95 02 25 01 B1 02 95 06 B1 03 C0 C0 06 07 FF 09 01 A1 01 85 0A 09 02 26 FF 00 75 08 95 14 91 02 85 09 09 03 91 02 85 0A 09 04 95 26 81 02 85 09 09 05 81 02 85 09 09 06 95 01 B1 02 85 0B 09 07 B1 02 C0 06 05 FF 09 04 A1 01 85 0E 09 31 91 02 09 31 81 03 09 30 91 02 09 30 81 02 95 39 09 32 92 02 01 09 32 82 02 01 C0 06 05 FF 09 50 A1 01 85 20 14 25 FF 75 08 95 3C 09 60 82 02 01 09 61 92 02 01 09 62 B2 02 01 85 21 09 63 82 02 01 09 64 92 02 01 09 65 B2 02 01 85 22 25 FF 75 20 95 04 19 66 29 69 81 02 19 6A 29 6D 91 02 19 6E 29 71 B1 02 85 23 19 72 29 75 81 02 19 76 29 79 91 02 19 7A 29 7D B1 02 85 24 19 7E 29 81 81 02 19 82 29 85 91 02 19 86 29 89 B1 02 85 25 19 8A 29 8D 81 02 19 8E 29 91 91 02 19 92 29 95 B1 02 85 26 19 96 29 99 81 02 19 9A 29 9D 91 02 19 9E 29 A1 B1 02 85 27 19 A2 29 A5 81 02 19 A6 29 A9 91 02 19 AA 29 AD B1 02 85 28 19 AE 29 B1 81 02 19 B2 29 B5 91 02 19 B6 29 B9 B1 02 85 29 19 BA 29 BD 81 02 19 BE 29 C1 91 02 19 C2 29 C5 B1 02 C0 06 00 FF 0A 00 F9 A1 01 85 32 75 10 95 02 14 27 FF FF 00 00 0A 01 F9 B1 02 75 20 95 01 25 FF 0A 02 F9 B1 02 75 08 95 08 26 FF 00 0A 03 F9 B2 02 01 95 10 0A 04 F9 B2 02 01 0A 05 F9 B2 02 01 95 01 75 10 27 FF FF 00 00 0A 06 F9 81 02 C0",
+        )
+
+
+class Test3m_0596_051c(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test 3m_0596_051c",
+            rdesc="05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 09 01 95 01 75 01 15 00 25 01 81 02 95 07 75 01 81 03 95 01 75 08 81 03 05 01 09 30 09 31 15 00 26 ff 7f 35 00 46 ff 7f 95 02 75 10 81 02 c0 a1 02 15 00 26 ff 00 09 01 95 39 75 08 81 03 c0 c0 05 0d 09 0e a1 01 85 11 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 09 04 a1 01 85 13 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 81 03 09 47 81 02 95 05 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 d1 12 81 02 09 31 46 b2 0b 81 02 06 00 ff 75 10 95 02 09 01 81 02 c0 05 0d 09 54 95 01 75 08 15 00 25 14 81 02 05 0d 55 0c 66 01 10 35 00 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 05 0d 09 55 85 12 15 00 25 14 75 08 95 01 b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 06 00 ff 15 00 26 ff 00 85 03 09 01 75 08 95 07 b1 02 85 04 09 01 75 08 95 17 b1 02 85 05 09 01 75 08 95 47 b1 02 85 06 09 01 75 08 95 07 b1 02 85 73 09 01 75 08 95 07 b1 02 85 08 09 01 75 08 95 07 b1 02 85 09 09 01 75 08 95 3f b1 02 85 0f 09 01 75 08 96 07 02 b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_04e8_2084(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_04e8_2084",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 c0 14 81 02 46 ae 0b 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 b1 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2149_2306(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2149_2306",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 81 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2149_230a(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2149_230a",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f6 13 81 02 46 40 0b 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 81 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2149_231c(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2149_231c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 e2 13 81 02 46 32 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 e2 13 81 02 46 32 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 e2 13 81 02 46 32 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 e2 13 81 02 46 32 0b 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 e2 13 81 02 46 32 0b 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 b1 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2149_2703(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2149_2703",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 66 17 81 02 46 34 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 66 17 81 02 46 34 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 66 17 81 02 46 34 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 66 17 81 02 46 34 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 66 17 81 02 46 34 0d 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 81 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2149_270b(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2149_270b",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 52 17 81 02 46 20 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 52 17 81 02 46 20 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 52 17 81 02 46 20 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 52 17 81 02 46 20 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 52 17 81 02 46 20 0d 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 b1 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 85 f3 09 08 95 3d b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2575_0204(BaseTest.TestWin8Multitouch):
+    """found on the Dell Canvas 27"""
+
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2575_0204",
+            rdesc="05 0d 09 04 a1 01 85 01 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 51 75 07 95 01 81 02 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 4f 17 81 02 46 1d 0d 09 31 81 02 45 00 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 42 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 c0 05 01 09 0e a1 01 85 05 05 01 09 08 a1 00 09 30 55 0e 65 11 15 00 26 ff 7f 35 00 46 4f 17 75 10 95 01 81 42 09 31 46 1d 0d 81 42 06 00 ff 09 01 75 20 81 03 05 01 09 37 55 00 65 14 16 98 fe 26 68 01 36 98 fe 46 68 01 75 0f 81 06 05 09 09 01 65 00 15 00 25 01 35 00 45 00 75 01 81 02 05 0d 09 42 81 02 09 51 75 07 25 7f 81 02 05 0d 09 48 55 0e 65 11 15 00 26 ff 7f 35 00 46 ff 7f 75 10 81 02 09 49 81 02 09 3f 55 00 65 14 15 00 26 67 01 35 00 46 67 01 81 0a c0 65 00 35 00 45 00 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 05 75 08 09 54 81 02 85 47 09 55 25 05 b1 02 c0 06 00 ff 09 04 a1 01 85 f0 09 01 75 08 95 04 b1 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 85 c0 09 01 95 03 b1 02 85 c2 09 01 95 0f b1 02 85 c4 09 01 95 3e b1 02 85 c5 09 01 95 7e b1 02 85 c6 09 01 95 fe b1 02 85 c8 09 01 96 fe 03 b1 02 85 0a 09 01 95 3f b1 02 c0",
+        )
+
+
+class Testadvanced_silicon_2619_5610(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test advanced_silicon_2619_5610",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 02 81 03 09 51 25 1f 75 05 95 01 81 02 a1 00 05 01 26 ff 7f 75 10 55 0e 65 11 09 30 35 00 46 f9 15 81 02 46 73 0c 09 31 81 02 45 00 c0 c0 05 0d 15 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 25 0a 75 08 09 54 81 02 85 44 09 55 b1 02 85 44 06 00 ff 09 c5 26 ff 00 96 00 01 b1 02 85 f0 09 01 95 04 81 02 85 f2 09 03 b1 02 09 04 b1 02 09 05 b1 02 95 01 09 06 b1 02 09 07 b1 02 85 f1 09 02 95 07 91 02 c0",
+        )
+
+
+class Testatmel_03eb_8409(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test atmel_03eb_8409",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 05 0d 27 ff ff 00 00 75 10 95 01 09 56 81 02 15 00 25 1f 75 05 09 54 95 01 81 02 75 03 25 01 95 01 81 03 75 08 85 02 09 55 25 10 b1 02 06 00 ff 85 05 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 00 a1 01 85 03 09 20 a1 00 15 00 25 01 75 01 95 01 09 42 81 02 09 44 81 02 09 45 81 02 81 03 09 32 81 02 95 03 81 03 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 46 18 06 26 77 0f 09 31 81 02 05 0d 09 30 15 01 26 ff 00 75 08 95 01 81 02 c0 c0",
+        )
+
+
+class Testatmel_03eb_840b(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test atmel_03eb_840b",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 05 0d 27 ff ff 00 00 75 10 95 01 09 56 81 02 15 00 25 1f 75 05 09 54 95 01 81 02 75 03 25 01 95 01 81 03 75 08 85 02 09 55 25 10 b1 02 06 00 ff 85 05 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 02 a1 01 85 03 09 20 a1 00 15 00 25 01 75 01 95 01 09 42 81 02 09 44 81 02 09 45 81 02 81 03 09 32 81 02 95 03 81 03 05 01 55 0e 65 11 35 00 75 10 95 02 46 00 0a 26 ff 0f 09 30 81 02 46 a0 05 26 ff 0f 09 31 81 02 05 0d 09 30 15 01 26 ff 00 75 08 95 01 81 02 c0 c0",
+        )
+
+
+class Testdell_044e_1220(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test dell_044e_1220",
+            type="pressurepad",
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 09 38 95 01 81 06 05 0c 0a 38 02 81 06 c0 c0 05 0d 09 05 a1 01 85 08 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 af 04 75 10 55 0e 65 11 09 30 35 00 46 e8 03 95 01 81 02 26 7b 02 46 12 02 09 31 81 02 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 05 0d 09 56 81 02 09 54 25 05 95 01 75 08 81 02 05 09 19 01 29 03 25 01 75 01 95 03 81 02 95 05 81 03 05 0d 85 09 09 55 75 08 95 01 25 05 b1 02 06 00 ff 85 0a 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 01 ff 09 01 a1 01 85 03 09 01 15 00 26 ff 00 95 1b 81 02 85 04 09 02 95 50 81 02 85 05 09 03 95 07 b1 02 85 06 09 04 81 02 c0 06 02 ff 09 01 a1 01 85 07 09 02 95 86 75 08 b1 02 c0 05 0d 09 0e a1 01 85 0b 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 0c 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0",
+        )
+
+
+class Testdell_06cb_75db(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test dell_06cb_75db",
+            max_contacts=3,
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 03 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c8 04 75 10 55 0e 65 11 09 30 35 00 46 fb 03 95 01 81 02 46 6c 02 26 e8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c8 04 75 10 55 0e 65 11 09 30 35 00 46 fb 03 95 01 81 02 46 6c 02 26 e8 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 c8 04 75 10 55 0e 65 11 09 30 35 00 46 fb 03 95 01 81 02 46 6c 02 26 e8 02 09 31 81 02 05 0d c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 08 09 55 09 59 75 04 95 02 25 0f b1 02 85 0d 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 06 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 14 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 14 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 1a 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 1a 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 01 b1 02 85 0e 09 07 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+        )
+
+
+class Testegalax_capacitive_0eef_790a(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test egalax_capacitive_0eef_790a",
+            max_contacts=10,
+            rdesc="05 0d 09 04 a1 01 85 06 05 0d 09 54 75 08 15 00 25 0c 95 01 81 02 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 15 00 25 20 81 02 05 01 26 ff 0f 75 10 55 0e 65 11 09 30 35 00 46 13 0c 81 02 46 cb 06 09 31 81 02 75 08 95 02 81 03 81 03 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 15 00 25 20 81 02 05 01 26 ff 0f 75 10 55 0e 65 11 09 30 35 00 46 13 0c 81 02 46 cb 06 09 31 81 02 75 08 95 02 81 03 81 03 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 15 00 25 20 81 02 05 01 26 ff 0f 75 10 55 0e 65 11 09 30 35 00 46 13 0c 81 02 46 cb 06 09 31 81 02 75 08 95 02 81 03 81 03 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 15 00 25 20 81 02 05 01 26 ff 0f 75 10 55 0e 65 11 09 30 35 00 46 13 0c 81 02 46 cb 06 09 31 81 02 75 08 95 02 81 03 81 03 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 15 00 25 20 81 02 05 01 26 ff 0f 75 10 55 0e 65 11 09 30 35 00 46 13 0c 81 02 46 cb 06 09 31 81 02 75 08 95 02 81 03 81 03 c0 05 0d 17 00 00 00 00 27 ff ff ff 7f 75 20 95 01 55 00 65 00 09 56 81 02 09 55 09 53 75 08 95 02 26 ff 00 b1 02 06 00 ff 09 c5 85 07 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 01 a1 01 85 01 09 01 a1 02 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 0e a1 01 85 05 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0",
+        )
+
+
+class Testelan_04f3_000a(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_000a",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 00 08 46 a6 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class Testelan_04f3_000c(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_000c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 40 0e 75 10 55 0f 65 11 09 30 35 00 46 01 01 95 02 81 02 26 00 08 46 91 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class Testelan_04f3_010c(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_010c",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c2 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class Testelan_04f3_0125(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_0125",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 f0 0c 75 10 55 0f 65 11 09 30 35 00 46 58 01 95 02 81 02 26 50 07 46 c1 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class Testelan_04f3_016f(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_016f",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0",
+        )
+
+
+class Testelan_04f3_0732(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_0732",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0b 75 10 55 0f 65 11 09 30 35 00 46 ff 00 95 02 81 02 26 40 07 46 85 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff 00 00 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 15 00 25 ff 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 1f 09 01 91 02 c0",
+        )
+
+
+class Testelan_04f3_200a(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elan_04f3_200a",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 75 06 09 51 25 3f 81 02 26 ff 00 75 08 09 48 81 02 09 49 81 02 95 01 05 01 26 c0 0e 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 02 81 02 26 40 08 46 a6 00 09 31 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff 00 00 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 0a 09 55 25 0a b1 02 85 0e 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0",
+        )
+
+
+class Testelan_04f3_300b(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test elan_04f3_300b",
+            max_contacts=3,
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 09 38 15 81 25 7f 75 08 95 03 81 06 05 0c 0a 38 02 95 01 81 06 75 08 95 03 81 03 c0 06 00 ff 85 0d 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0c 09 c6 96 76 02 75 08 b1 02 85 0b 09 c7 95 42 75 08 b1 02 09 01 85 5d 95 1f 75 08 81 06 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 02 25 02 09 51 81 02 75 01 95 04 81 03 05 01 15 00 26 a7 0c 75 10 55 0e 65 13 09 30 35 00 46 9d 01 95 01 81 02 46 25 01 26 2b 09 26 2b 09 09 31 81 02 05 0d 15 00 25 64 95 03 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 02 09 55 09 59 75 04 95 02 25 0f b1 02 85 07 09 60 75 01 95 01 15 00 25 01 b1 02 95 0f b1 03 06 00 ff 06 00 ff 85 06 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 03 09 22 a1 00 09 52 15 00 25 0a 75 08 95 02 b1 02 c0 09 22 a1 00 85 05 09 57 09 58 15 00 75 01 95 02 25 03 b1 02 95 0e b1 03 c0 c0",
+        )
+
+
+class Testelan_04f3_3045(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test elan_04f3_3045",
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 09 38 15 81 25 7f 75 08 95 03 81 06 05 0c 0a 38 02 95 01 81 06 75 08 95 03 81 03 c0 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 75 01 95 02 81 03 95 01 75 04 25 0f 09 51 81 02 05 01 15 00 26 80 0c 75 10 55 0e 65 13 09 30 35 00 46 90 01 95 01 81 02 46 13 01 26 96 08 26 96 08 09 31 81 02 05 0d 15 00 25 64 95 03 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 09 c5 75 08 95 04 81 03 05 0d 85 02 09 55 09 59 75 04 95 02 25 0f b1 02 85 07 09 60 75 01 95 01 15 00 25 01 b1 02 95 0f b1 03 06 00 ff 06 00 ff 85 06 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 85 0d 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0c 09 c6 96 8a 02 75 08 b1 02 85 0b 09 c7 95 80 75 08 b1 02 c0 05 0d 09 0e a1 01 85 03 09 22 a1 00 09 52 15 00 25 0a 75 08 95 02 b1 02 c0 09 22 a1 00 85 05 09 57 09 58 15 00 75 01 95 02 25 03 b1 02 95 0e b1 03 c0 c0",
+        )
+
+
+class Testelan_04f3_313a(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test elan_04f3_313a",
+            type="touchpad",
+            input_info=(BusType.I2C, 0x04F3, 0x313A),
+            rdesc="05 01 09 02 a1 01 85 01 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 75 08 95 05 81 03 c0 06 00 ff 09 01 85 0e 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0a 09 c6 15 00 26 ff 00 75 08 95 04 b1 02 c0 06 00 ff 09 01 a1 01 85 5c 09 01 95 0b 75 08 81 06 85 0d 09 c5 15 00 26 ff 00 75 08 95 04 b1 02 85 0c 09 c6 96 80 03 75 08 b1 02 85 0b 09 c7 95 82 75 08 b1 02 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 05 09 09 02 09 03 15 00 25 01 75 01 95 02 81 02 05 0d 95 01 75 04 25 0f 09 51 81 02 05 01 15 00 26 d7 0e 75 10 55 0d 65 11 09 30 35 00 46 44 2f 95 01 81 02 46 12 16 26 eb 06 26 eb 06 09 31 81 02 05 0d 15 00 25 64 95 03 c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 25 01 75 01 95 08 81 03 09 c5 75 08 95 02 81 03 05 0d 85 02 09 55 09 59 75 04 95 02 25 0f b1 02 85 07 09 60 75 01 95 01 15 00 25 01 b1 02 95 0f b1 03 06 00 ff 06 00 ff 85 06 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 03 09 22 a1 00 09 52 15 00 25 0a 75 10 95 01 b1 02 c0 09 22 a1 00 85 05 09 57 09 58 75 01 95 02 25 01 b1 02 95 0e b1 03 c0 c0 05 01 09 02 a1 01 85 2a 09 01 a1 00 05 09 19 01 29 03 15 00 25 01 75 01 95 03 81 02 95 05 81 03 05 01 09 30 09 31 15 81 25 7f 35 81 45 7f 55 00 65 13 75 08 95 02 81 06 75 08 95 05 81 03 c0 c0",
+        )
+
+
+class Testelo_04e7_0080(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test elo_04e7_0080",
+            rdesc="05 0d 09 04 a1 01 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 75 10 09 30 46 7c 24 81 02 09 31 46 96 14 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 75 10 09 30 46 7c 24 81 02 09 31 46 96 14 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 75 10 09 30 46 7c 24 81 02 09 31 46 96 14 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 03 81 03 09 32 95 02 81 02 95 02 81 03 09 51 75 08 95 01 81 02 05 01 26 ff 7f 65 11 55 0e 75 10 09 30 46 7c 24 81 02 09 31 46 96 14 81 02 c0 05 0d 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 75 08 95 01 15 00 25 08 81 02 09 55 b1 02 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0",
+        )
+
+
+class Testilitek_222a_0015(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ilitek_222a_0015",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 c2 16 35 00 46 b3 08 81 42 09 31 26 c2 0c 46 e4 04 81 42 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 02 09 55 25 0a b1 02 06 00 ff 09 c5 85 06 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 00 ff 09 01 a1 01 09 01 85 03 15 00 26 ff 00 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0",
+        )
+
+
+class Testilitek_222a_001c(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test ilitek_222a_001c",
+            rdesc="05 0d 09 04 a1 01 85 04 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 74 1d 35 00 46 70 0d 81 42 09 31 26 74 10 46 8f 07 81 42 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 85 02 09 55 25 0a b1 02 06 00 ff 09 c5 85 06 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 00 ff 09 01 a1 01 09 01 85 03 15 00 26 ff 00 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0",
+        )
+
+
+class Testite_06cb_2968(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test ite_06cb_2968",
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 03 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 1b 04 75 10 55 0e 65 11 09 30 35 00 46 6c 03 95 01 81 02 46 db 01 26 3b 02 09 31 81 02 05 0d c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 08 09 55 09 59 75 04 95 02 25 0f b1 02 85 0d 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 06 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 14 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 14 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 1a 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 1a 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 01 b1 02 85 0e 09 07 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+            max_contacts=5,
+            input_info=(0x3, 0x06CB, 0x2968),
+        )
+
+
+class Testn_trig_1b96_0c01(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test n_trig_1b96_0c01",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0c03(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test n_trig_1b96_0c03",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0f00(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test n_trig_1b96_0f00",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0f04(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test n_trig_1b96_0f04",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_1000(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test n_trig_1b96_1000",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testsharp_04dd_9681(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test sharp_04dd_9681",
+            rdesc="06 00 ff 09 01 a1 01 75 08 26 ff 00 15 00 85 06 95 3f 09 01 91 02 85 05 95 3f 09 01 81 02 c0 05 0d 09 04 a1 01 85 81 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 81 02 05 01 65 11 55 0f 35 00 46 b0 01 26 80 07 75 10 09 30 81 02 46 f3 00 26 38 04 09 31 81 02 05 0d 09 48 09 49 26 ff 00 95 02 75 08 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 81 02 05 01 65 11 55 0f 35 00 46 b0 01 26 80 07 75 10 09 30 81 02 46 f3 00 26 38 04 09 31 81 02 05 0d 09 48 09 49 26 ff 00 95 02 75 08 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 81 02 05 01 65 11 55 0f 35 00 46 b0 01 26 80 07 75 10 09 30 81 02 46 f3 00 26 38 04 09 31 81 02 05 0d 09 48 09 49 26 ff 00 95 02 75 08 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 81 02 05 01 65 11 55 0f 35 00 46 b0 01 26 80 07 75 10 09 30 81 02 46 f3 00 26 38 04 09 31 81 02 05 0d 09 48 09 49 26 ff 00 95 02 75 08 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 95 01 81 02 05 01 65 11 55 0f 35 00 46 b0 01 26 80 07 75 10 09 30 81 02 46 f3 00 26 38 04 09 31 81 02 05 0d 09 48 09 49 26 ff 00 95 02 75 08 81 02 c0 05 0d 09 56 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 81 02 09 54 95 01 75 08 15 00 25 0a 81 02 85 84 09 55 b1 02 85 87 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 09 0e a1 01 85 83 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 80 05 09 19 01 29 01 15 00 25 01 95 01 75 01 81 02 95 01 75 07 81 01 05 01 65 11 55 0f 09 30 26 80 07 35 00 46 66 00 75 10 95 01 81 02 09 31 26 38 04 35 00 46 4d 00 81 02 c0 c0",
+        )
+
+
+class Testsipodev_0603_0002(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test sipodev_0603_0002",
+            type="clickpad",
+            rdesc="05 01 09 02 a1 01 85 03 09 01 a1 00 05 09 19 01 29 02 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 80 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 04 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 75 01 95 02 81 03 95 01 75 04 25 05 09 51 81 02 05 01 15 00 26 44 0a 75 0c 55 0e 65 11 09 30 35 00 46 ac 03 95 01 81 02 46 fe 01 26 34 05 75 0c 09 31 81 02 05 0d c0 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 0a 95 01 75 04 81 02 75 01 95 03 81 03 05 09 09 01 25 01 75 01 95 01 81 02 05 0d 85 0a 09 55 09 59 75 04 95 02 25 0f b1 02 85 0b 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 09 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 06 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 07 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 05 01 09 0c a1 01 85 08 15 00 25 01 09 c6 75 01 95 01 81 06 75 07 81 03 c0 05 01 09 80 a1 01 85 01 15 00 25 01 75 01 0a 81 00 0a 82 00 0a 83 00 95 03 81 06 95 05 81 01 c0 06 0c 00 09 01 a1 01 85 02 25 01 15 00 75 01 0a b5 00 0a b6 00 0a b7 00 0a cd 00 0a e2 00 0a a2 00 0a e9 00 0a ea 00 95 08 81 02 0a 83 01 0a 6f 00 0a 70 00 0a 88 01 0a 8a 01 0a 92 01 0a a8 02 0a 24 02 95 08 81 02 0a 21 02 0a 23 02 0a 96 01 0a 25 02 0a 26 02 0a 27 02 0a 23 02 0a b1 02 95 08 81 02 c0 06 00 ff 09 01 a1 01 85 05 15 00 26 ff 00 19 01 29 02 75 08 95 05 b1 02 c0",
+        )
+
+
+class Testsynaptics_06cb_1d10(BaseTest.TestWin8Multitouch):
+    def create_device(self):
+        return Digitizer(
+            "uhid test synaptics_06cb_1d10",
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 75 08 95 02 15 81 25 7f 35 81 45 7f 55 0e 65 11 81 06 c0 c0 05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 15 01 26 ff 00 95 01 81 42 05 01 15 00 26 3c 0c 75 10 55 0e 65 11 09 30 35 12 46 2a 0c 81 02 09 31 15 00 26 f1 06 35 12 46 df 06 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 15 01 26 ff 00 95 01 81 42 05 01 15 00 26 3c 0c 75 10 55 0e 65 11 09 30 35 12 46 2a 0c 81 02 09 31 15 00 26 f1 06 35 12 46 df 06 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 15 01 26 ff 00 95 01 81 42 05 01 15 00 26 3c 0c 75 10 55 0e 65 11 09 30 35 12 46 2a 0c 81 02 09 31 15 00 26 f1 06 35 12 46 df 06 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 15 01 26 ff 00 95 01 81 42 05 01 15 00 26 3c 0c 75 10 55 0e 65 11 09 30 35 12 46 2a 0c 81 02 09 31 15 00 26 f1 06 35 12 46 df 06 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 75 08 09 51 15 01 26 ff 00 95 01 81 42 05 01 15 00 26 3c 0c 75 10 55 0e 65 11 09 30 35 12 46 2a 0c 81 02 09 31 15 00 26 f1 06 35 12 46 df 06 81 02 c0 05 0d 05 0d 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 95 01 75 08 15 00 25 0f 81 02 85 08 09 55 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 3f 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 05 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 3d 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 01 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+        )
+
+
+class Testsynaptics_06cb_ce08(BaseTest.TestPTP):
+    def create_device(self):
+        return PTP(
+            "uhid test synaptics_06cb_ce08",
+            max_contacts=5,
+            physical="Vendor Usage 1",
+            input_info=(BusType.I2C, 0x06CB, 0xCE08),
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 01 09 02 a1 01 85 18 09 01 a1 00 05 09 19 01 29 03 46 00 00 15 00 25 01 75 01 95 03 81 02 95 05 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 06 00 ff 09 02 a1 01 85 20 09 01 a1 00 09 03 15 00 26 ff 00 35 00 46 ff 00 75 08 95 05 81 02 c0 c0 05 0d 09 05 a1 01 85 03 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 f8 04 75 10 55 0e 65 11 09 30 35 00 46 24 04 95 01 81 02 46 30 02 26 a0 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 f8 04 75 10 55 0e 65 11 09 30 35 00 46 24 04 95 01 81 02 46 30 02 26 a0 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 f8 04 75 10 55 0e 65 11 09 30 35 00 46 24 04 95 01 81 02 46 30 02 26 a0 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 f8 04 75 10 55 0e 65 11 09 30 35 00 46 24 04 95 01 81 02 46 30 02 26 a0 02 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 f8 04 75 10 55 0e 65 11 09 30 35 00 46 24 04 95 01 81 02 46 30 02 26 a0 02 09 31 81 02 c0 05 0d 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 08 09 55 09 59 75 04 95 02 25 0f b1 02 85 0d 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 06 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 14 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 14 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 45 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 45 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 03 b1 02 85 0e 09 07 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+        )
+
+class Testsynaptics_06cb_ce26(TestWin8TSConfidence):
+    def create_device(self):
+        return PTP(
+            "uhid test synaptics_06cb_ce26",
+            max_contacts=5,
+            input_info=(BusType.I2C, 0x06CB, 0xCE26),
+            rdesc="05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 01 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0 05 0d 09 05 a1 01 85 03 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 45 05 75 10 55 0e 65 11 09 30 35 00 46 64 04 95 01 81 02 46 a2 02 26 29 03 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 45 05 75 10 55 0e 65 11 09 30 35 00 46 64 04 95 01 81 02 46 a2 02 26 29 03 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 45 05 75 10 55 0e 65 11 09 30 35 00 46 64 04 95 01 81 02 46 a2 02 26 29 03 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 45 05 75 10 55 0e 65 11 09 30 35 00 46 64 04 95 01 81 02 46 a2 02 26 29 03 09 31 81 02 c0 05 0d 09 22 a1 02 15 00 25 01 09 47 09 42 95 02 75 01 81 02 95 01 75 03 25 05 09 51 81 02 75 01 95 03 81 03 05 01 15 00 26 45 05 75 10 55 0e 65 11 09 30 35 00 46 64 04 95 01 81 02 46 a2 02 26 29 03 09 31 81 02 c0 05 0d 55 0c 66 01 10 47 ff ff 00 00 27 ff ff 00 00 75 10 95 01 09 56 81 02 09 54 25 7f 95 01 75 08 81 02 05 09 09 01 25 01 75 01 95 01 81 02 95 07 81 03 05 0d 85 08 09 55 09 59 75 04 95 02 25 0f b1 02 85 0d 09 60 75 01 95 01 15 00 25 01 b1 02 95 07 b1 03 85 07 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 0e a1 01 85 04 09 22 a1 02 09 52 15 00 25 0a 75 08 95 01 b1 02 c0 09 22 a1 00 85 06 09 57 09 58 75 01 95 02 25 01 b1 02 95 06 b1 03 c0 c0 06 00 ff 09 01 a1 01 85 09 09 02 15 00 26 ff 00 75 08 95 14 91 02 85 0a 09 03 15 00 26 ff 00 75 08 95 14 91 02 85 0b 09 04 15 00 26 ff 00 75 08 95 3d 81 02 85 0c 09 05 15 00 26 ff 00 75 08 95 3d 81 02 85 0f 09 06 15 00 26 ff 00 75 08 95 03 b1 02 85 0e 09 07 15 00 26 ff 00 75 08 95 01 b1 02 c0",
+        )
diff --git a/tools/testing/selftests/hid/tests/test_sony.py b/tools/testing/selftests/hid/tests/test_sony.py
new file mode 100644
index 000000000000..7fd3a8e6137d
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_sony.py
@@ -0,0 +1,343 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2020 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2020 Red Hat, Inc.
+#
+
+from .base import application_matches
+from .base import KernelModule
+from .test_gamepad import BaseTest
+from hidtools.device.sony_gamepad import (
+    PS3Controller,
+    PS4ControllerBluetooth,
+    PS4ControllerUSB,
+    PS5ControllerBluetooth,
+    PS5ControllerUSB,
+    PSTouchPoint,
+)
+from hidtools.util import BusType
+
+import libevdev
+import logging
+import pytest
+
+logger = logging.getLogger("hidtools.test.sony")
+
+PS3_MODULE = KernelModule("sony", "hid_sony")
+PS4_MODULE = KernelModule("playstation", "hid_playstation")
+PS5_MODULE = KernelModule("playstation", "hid_playstation")
+
+
+class SonyBaseTest:
+    class SonyTest(BaseTest.TestGamepad):
+        pass
+
+    class SonyPS4ControllerTest(SonyTest):
+        kernel_modules = [PS4_MODULE]
+
+        def test_accelerometer(self):
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev("Accelerometer")
+
+            for x in range(-32000, 32000, 4000):
+                r = uhdev.event(accel=(x, None, None))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_X) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_X]
+                # Check against range due to small loss in precision due
+                # to inverse calibration, followed by calibration by hid-sony.
+                assert x - 1 <= value <= x + 1
+
+            for y in range(-32000, 32000, 4000):
+                r = uhdev.event(accel=(None, y, None))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_Y) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_Y]
+                assert y - 1 <= value <= y + 1
+
+            for z in range(-32000, 32000, 4000):
+                r = uhdev.event(accel=(None, None, z))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_Z) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_Z]
+                assert z - 1 <= value <= z + 1
+
+        def test_gyroscope(self):
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev("Accelerometer")
+
+            for rx in range(-2000000, 2000000, 200000):
+                r = uhdev.event(gyro=(rx, None, None))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_RX) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_RX]
+                # Sensor internal value is 16-bit, but calibrated is 22-bit, so
+                # 6-bit (64) difference, so allow a range of +/- 64.
+                assert rx - 64 <= value <= rx + 64
+
+            for ry in range(-2000000, 2000000, 200000):
+                r = uhdev.event(gyro=(None, ry, None))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_RY) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_RY]
+                assert ry - 64 <= value <= ry + 64
+
+            for rz in range(-2000000, 2000000, 200000):
+                r = uhdev.event(gyro=(None, None, rz))
+                events = uhdev.next_sync_events("Accelerometer")
+                self.debug_reports(r, uhdev, events)
+
+                assert libevdev.InputEvent(libevdev.EV_ABS.ABS_RZ) in events
+                value = evdev.value[libevdev.EV_ABS.ABS_RZ]
+                assert rz - 64 <= value <= rz + 64
+
+        def test_battery(self):
+            uhdev = self.uhdev
+
+            assert uhdev.power_supply_class is not None
+
+            # DS4 capacity levels are in increments of 10.
+            # Battery is never below 5%.
+            for i in range(5, 105, 10):
+                uhdev.battery.capacity = i
+                uhdev.event()
+                assert uhdev.power_supply_class.capacity == i
+
+            # Discharging tests only make sense for BlueTooth.
+            if uhdev.bus == BusType.BLUETOOTH:
+                uhdev.battery.cable_connected = False
+                uhdev.battery.capacity = 45
+                uhdev.event()
+                assert uhdev.power_supply_class.status == "Discharging"
+
+            uhdev.battery.cable_connected = True
+            uhdev.battery.capacity = 5
+            uhdev.event()
+            assert uhdev.power_supply_class.status == "Charging"
+
+            uhdev.battery.capacity = 100
+            uhdev.event()
+            assert uhdev.power_supply_class.status == "Charging"
+
+            uhdev.battery.full = True
+            uhdev.event()
+            assert uhdev.power_supply_class.status == "Full"
+
+        def test_mt_single_touch(self):
+            """send a single touch in the first slot of the device,
+            and release it."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev("Touch Pad")
+
+            t0 = PSTouchPoint(1, 50, 100)
+            r = uhdev.event(touch=[t0])
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+
+            t0.tipswitch = False
+            r = uhdev.event(touch=[t0])
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+        def test_mt_dual_touch(self):
+            """Send 2 touches in the first 2 slots.
+            Make sure the kernel sees this as a dual touch.
+            Release and check
+
+            Note: PTP will send here BTN_DOUBLETAP emulation"""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev("Touch Pad")
+
+            t0 = PSTouchPoint(1, 50, 100)
+            t1 = PSTouchPoint(2, 150, 200)
+
+            r = uhdev.event(touch=[t0])
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+            r = uhdev.event(touch=[t0, t1])
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+            assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH) not in events
+            assert evdev.value[libevdev.EV_KEY.BTN_TOUCH] == 1
+            assert (
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_X, 5) not in events
+            )
+            assert (
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_Y, 10) not in events
+            )
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_POSITION_X] == 150
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 200
+
+            t0.tipswitch = False
+            r = uhdev.event(touch=[t0, t1])
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 1
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_X) not in events
+            assert libevdev.InputEvent(libevdev.EV_ABS.ABS_MT_POSITION_Y) not in events
+
+            t1.tipswitch = False
+            r = uhdev.event(touch=[t1])
+
+            events = uhdev.next_sync_events("Touch Pad")
+            self.debug_reports(r, uhdev, events)
+            assert evdev.slots[0][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+            assert evdev.slots[1][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+
+class TestPS3Controller(SonyBaseTest.SonyTest):
+    kernel_modules = [PS3_MODULE]
+
+    def create_device(self):
+        controller = PS3Controller()
+        controller.application_matches = application_matches
+        return controller
+
+    @pytest.fixture(autouse=True)
+    def start_controller(self):
+        # emulate a 'PS' button press to tell the kernel we are ready to accept events
+        self.assert_button(17)
+
+        # drain any remaining udev events
+        while self.uhdev.dispatch(10):
+            pass
+
+        def test_led(self):
+            for k, v in self.uhdev.led_classes.items():
+                # the kernel might have set a LED for us
+                logger.info(f"{k}: {v.brightness}")
+
+                idx = int(k[-1]) - 1
+                assert self.uhdev.hw_leds.get_led(idx)[0] == bool(v.brightness)
+
+                v.brightness = 0
+                self.uhdev.dispatch(10)
+                assert self.uhdev.hw_leds.get_led(idx)[0] is False
+
+                v.brightness = v.max_brightness
+                self.uhdev.dispatch(10)
+                assert self.uhdev.hw_leds.get_led(idx)[0]
+
+
+class CalibratedPS4Controller(object):
+    # DS4 reports uncalibrated sensor data. Calibration coefficients
+    # can be retrieved using a feature report (0x2 USB / 0x5 BT).
+    # The values below are the processed calibration values for the
+    # DS4s matching the feature reports of PS4ControllerBluetooth/USB
+    # as dumped from hid-sony 'ds4_get_calibration_data'.
+    #
+    # Note we duplicate those values here in case the kernel changes them
+    # so we can have tests passing even if hid-tools doesn't have the
+    # correct values.
+    accelerometer_calibration_data = {
+        "x": {"bias": -73, "numer": 16384, "denom": 16472},
+        "y": {"bias": -352, "numer": 16384, "denom": 16344},
+        "z": {"bias": 81, "numer": 16384, "denom": 16319},
+    }
+    gyroscope_calibration_data = {
+        "x": {"bias": 0, "numer": 1105920, "denom": 17827},
+        "y": {"bias": 0, "numer": 1105920, "denom": 17777},
+        "z": {"bias": 0, "numer": 1105920, "denom": 17748},
+    }
+
+
+class CalibratedPS4ControllerBluetooth(CalibratedPS4Controller, PS4ControllerBluetooth):
+    pass
+
+
+class TestPS4ControllerBluetooth(SonyBaseTest.SonyPS4ControllerTest):
+    def create_device(self):
+        controller = CalibratedPS4ControllerBluetooth()
+        controller.application_matches = application_matches
+        return controller
+
+
+class CalibratedPS4ControllerUSB(CalibratedPS4Controller, PS4ControllerUSB):
+    pass
+
+
+class TestPS4ControllerUSB(SonyBaseTest.SonyPS4ControllerTest):
+    def create_device(self):
+        controller = CalibratedPS4ControllerUSB()
+        controller.application_matches = application_matches
+        return controller
+
+
+class CalibratedPS5Controller(object):
+    # DualSense reports uncalibrated sensor data. Calibration coefficients
+    # can be retrieved using feature report 0x09.
+    # The values below are the processed calibration values for the
+    # DualSene matching the feature reports of PS5ControllerBluetooth/USB
+    # as dumped from hid-playstation 'dualsense_get_calibration_data'.
+    #
+    # Note we duplicate those values here in case the kernel changes them
+    # so we can have tests passing even if hid-tools doesn't have the
+    # correct values.
+    accelerometer_calibration_data = {
+        "x": {"bias": 0, "numer": 16384, "denom": 16374},
+        "y": {"bias": -114, "numer": 16384, "denom": 16362},
+        "z": {"bias": 2, "numer": 16384, "denom": 16395},
+    }
+    gyroscope_calibration_data = {
+        "x": {"bias": 0, "numer": 1105920, "denom": 17727},
+        "y": {"bias": 0, "numer": 1105920, "denom": 17728},
+        "z": {"bias": 0, "numer": 1105920, "denom": 17769},
+    }
+
+
+class CalibratedPS5ControllerBluetooth(CalibratedPS5Controller, PS5ControllerBluetooth):
+    pass
+
+
+class TestPS5ControllerBluetooth(SonyBaseTest.SonyPS4ControllerTest):
+    kernel_modules = [PS5_MODULE]
+
+    def create_device(self):
+        controller = CalibratedPS5ControllerBluetooth()
+        controller.application_matches = application_matches
+        return controller
+
+
+class CalibratedPS5ControllerUSB(CalibratedPS5Controller, PS5ControllerUSB):
+    pass
+
+
+class TestPS5ControllerUSB(SonyBaseTest.SonyPS4ControllerTest):
+    kernel_modules = [PS5_MODULE]
+
+    def create_device(self):
+        controller = CalibratedPS5ControllerUSB()
+        controller.application_matches = application_matches
+        return controller
diff --git a/tools/testing/selftests/hid/tests/test_tablet.py b/tools/testing/selftests/hid/tests/test_tablet.py
new file mode 100644
index 000000000000..5b9abb616db4
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_tablet.py
@@ -0,0 +1,1577 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2021 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2021 Red Hat, Inc.
+#
+
+from . import base
+import copy
+from enum import Enum
+from hidtools.util import BusType
+from .base import HidBpf
+import libevdev
+import logging
+import pytest
+from typing import Dict, List, Optional, Tuple
+
+logger = logging.getLogger("hidtools.test.tablet")
+
+
+class BtnTouch(Enum):
+    """Represents whether the BTN_TOUCH event is set to True or False"""
+
+    DOWN = True
+    UP = False
+
+
+class ToolType(Enum):
+    PEN = libevdev.EV_KEY.BTN_TOOL_PEN
+    RUBBER = libevdev.EV_KEY.BTN_TOOL_RUBBER
+
+
+class BtnPressed(Enum):
+    """Represents whether a button is pressed on the stylus"""
+
+    PRIMARY_PRESSED = libevdev.EV_KEY.BTN_STYLUS
+    SECONDARY_PRESSED = libevdev.EV_KEY.BTN_STYLUS2
+    THIRD_PRESSED = libevdev.EV_KEY.BTN_STYLUS3
+
+
+class PenState(Enum):
+    """Pen states according to Microsoft reference:
+    https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+
+    We extend it with the various buttons when we need to check them.
+    """
+
+    PEN_IS_OUT_OF_RANGE = BtnTouch.UP, None, False
+    PEN_IS_IN_RANGE = BtnTouch.UP, ToolType.PEN, False
+    PEN_IS_IN_RANGE_WITH_BUTTON = BtnTouch.UP, ToolType.PEN, True
+    PEN_IS_IN_CONTACT = BtnTouch.DOWN, ToolType.PEN, False
+    PEN_IS_IN_CONTACT_WITH_BUTTON = BtnTouch.DOWN, ToolType.PEN, True
+    PEN_IS_IN_RANGE_WITH_ERASING_INTENT = BtnTouch.UP, ToolType.RUBBER, False
+    PEN_IS_IN_RANGE_WITH_ERASING_INTENT_WITH_BUTTON = BtnTouch.UP, ToolType.RUBBER, True
+    PEN_IS_ERASING = BtnTouch.DOWN, ToolType.RUBBER, False
+    PEN_IS_ERASING_WITH_BUTTON = BtnTouch.DOWN, ToolType.RUBBER, True
+
+    def __init__(
+        self, touch: BtnTouch, tool: Optional[ToolType], button: Optional[bool]
+    ):
+        self.touch = touch  # type: ignore
+        self.tool = tool  # type: ignore
+        self.button = button  # type: ignore
+
+    @classmethod
+    def from_evdev(cls, evdev, test_button) -> "PenState":
+        touch = BtnTouch(evdev.value[libevdev.EV_KEY.BTN_TOUCH])
+        tool = None
+        button = False
+        if (
+            evdev.value[libevdev.EV_KEY.BTN_TOOL_RUBBER]
+            and not evdev.value[libevdev.EV_KEY.BTN_TOOL_PEN]
+        ):
+            tool = ToolType(libevdev.EV_KEY.BTN_TOOL_RUBBER)
+        elif (
+            evdev.value[libevdev.EV_KEY.BTN_TOOL_PEN]
+            and not evdev.value[libevdev.EV_KEY.BTN_TOOL_RUBBER]
+        ):
+            tool = ToolType(libevdev.EV_KEY.BTN_TOOL_PEN)
+        elif (
+            evdev.value[libevdev.EV_KEY.BTN_TOOL_PEN]
+            or evdev.value[libevdev.EV_KEY.BTN_TOOL_RUBBER]
+        ):
+            raise ValueError("2 tools are not allowed")
+
+        # we take only the provided button into account
+        if test_button is not None:
+            button = bool(evdev.value[test_button.value])
+
+        # the kernel tends to insert an EV_SYN once removing the tool, so
+        # the button will be released after
+        if tool is None:
+            button = False
+
+        return cls((touch, tool, button))  # type: ignore
+
+    def apply(
+        self, events: List[libevdev.InputEvent], strict: bool, test_button: BtnPressed
+    ) -> "PenState":
+        if libevdev.EV_SYN.SYN_REPORT in events:
+            raise ValueError("EV_SYN is in the event sequence")
+        touch = self.touch
+        touch_found = False
+        tool = self.tool
+        tool_found = False
+        button = self.button
+        button_found = False
+
+        for ev in events:
+            if ev == libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH):
+                if touch_found:
+                    raise ValueError(f"duplicated BTN_TOUCH in {events}")
+                touch_found = True
+                touch = BtnTouch(ev.value)
+            elif ev in (
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN),
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_RUBBER),
+            ):
+                if tool_found:
+                    raise ValueError(f"duplicated BTN_TOOL_* in {events}")
+                tool_found = True
+                tool = ToolType(ev.code) if ev.value else None
+            elif test_button is not None and ev in (test_button.value,):
+                if button_found:
+                    raise ValueError(f"duplicated BTN_STYLUS* in {events}")
+                button_found = True
+                button = bool(ev.value)
+
+        # the kernel tends to insert an EV_SYN once removing the tool, so
+        # the button will be released after
+        if tool is None:
+            button = False
+
+        new_state = PenState((touch, tool, button))  # type: ignore
+        if strict:
+            assert (
+                new_state in self.valid_transitions()
+            ), f"moving from {self} to {new_state} is forbidden"
+        else:
+            assert (
+                new_state in self.historically_tolerated_transitions()
+            ), f"moving from {self} to {new_state} is forbidden"
+
+        return new_state
+
+    def valid_transitions(self) -> Tuple["PenState", ...]:
+        """Following the state machine in the URL above.
+
+        Note that those transitions are from the evdev point of view, not HID"""
+        if self == PenState.PEN_IS_OUT_OF_RANGE:
+            return (
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_ERASING,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE:
+            return (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+            )
+
+        if self == PenState.PEN_IS_IN_CONTACT:
+            return (
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT:
+            return (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_ERASING,
+            )
+
+        if self == PenState.PEN_IS_ERASING:
+            return (
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            return (
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+            )
+
+        if self == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            return (
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+            )
+
+        return tuple()
+
+    def historically_tolerated_transitions(self) -> Tuple["PenState", ...]:
+        """Following the state machine in the URL above, with a couple of addition
+        for skipping the in-range state, due to historical reasons.
+
+        Note that those transitions are from the evdev point of view, not HID"""
+        if self == PenState.PEN_IS_OUT_OF_RANGE:
+            return (
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_ERASING,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE:
+            return (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+            )
+
+        if self == PenState.PEN_IS_IN_CONTACT:
+            return (
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT:
+            return (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_ERASING,
+            )
+
+        if self == PenState.PEN_IS_ERASING:
+            return (
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            )
+
+        if self == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            return (
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_OUT_OF_RANGE,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+            )
+
+        if self == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            return (
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            )
+
+        return tuple()
+
+    @staticmethod
+    def legal_transitions() -> Dict[str, Tuple["PenState", ...]]:
+        """This is the first half of the Windows Pen Implementation state machine:
+        we don't have Invert nor Erase bits, so just move in/out-of-range or proximity.
+        https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+        """
+        return {
+            "in-range": (PenState.PEN_IS_IN_RANGE,),
+            "in-range -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+            "in-range -> touch": (PenState.PEN_IS_IN_RANGE, PenState.PEN_IS_IN_CONTACT),
+            "in-range -> touch -> release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> touch -> release -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+        }
+
+    @staticmethod
+    def legal_transitions_with_invert() -> Dict[str, Tuple["PenState", ...]]:
+        """This is the second half of the Windows Pen Implementation state machine:
+        we now have Invert and Erase bits, so move in/out or proximity with the intend
+        to erase.
+        https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+        """
+        return {
+            "hover-erasing": (PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,),
+            "hover-erasing -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+            "hover-erasing -> erase": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_ERASING,
+            ),
+            "hover-erasing -> erase -> release": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            ),
+            "hover-erasing -> erase -> release -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+            "hover-erasing -> in-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> hover-erasing": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            ),
+        }
+
+    @staticmethod
+    def legal_transitions_with_button() -> Dict[str, Tuple["PenState", ...]]:
+        """We revisit the Windows Pen Implementation state machine:
+        we now have a button.
+        """
+        return {
+            "hover-button": (PenState.PEN_IS_IN_RANGE_WITH_BUTTON,),
+            "hover-button -> out-of-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+            "in-range -> button-press": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+            ),
+            "in-range -> button-press -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> touch -> button-press -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+            ),
+            "in-range -> touch -> button-press -> release -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> button-press -> touch -> release -> button-release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "in-range -> button-press -> touch -> button-release -> release": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+        }
+
+    @staticmethod
+    def tolerated_transitions() -> Dict[str, Tuple["PenState", ...]]:
+        """This is not adhering to the Windows Pen Implementation state machine
+        but we should expect the kernel to behave properly, mostly for historical
+        reasons."""
+        return {
+            "direct-in-contact": (PenState.PEN_IS_IN_CONTACT,),
+            "direct-in-contact -> out-of-range": (
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+        }
+
+    @staticmethod
+    def tolerated_transitions_with_invert() -> Dict[str, Tuple["PenState", ...]]:
+        """This is the second half of the Windows Pen Implementation state machine:
+        we now have Invert and Erase bits, so move in/out or proximity with the intend
+        to erase.
+        https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+        """
+        return {
+            "direct-erase": (PenState.PEN_IS_ERASING,),
+            "direct-erase -> out-of-range": (
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_OUT_OF_RANGE,
+            ),
+        }
+
+    @staticmethod
+    def broken_transitions() -> Dict[str, Tuple["PenState", ...]]:
+        """Those tests are definitely not part of the Windows specification.
+        However, a half broken device might export those transitions.
+        For example, a pen that has the eraser button might wobble between
+        touching and erasing if the tablet doesn't enforce the Windows
+        state machine."""
+        return {
+            "in-range -> touch -> erase -> hover-erase": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            ),
+            "in-range -> erase -> hover-erase": (
+                PenState.PEN_IS_IN_RANGE,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            ),
+            "hover-erase -> erase -> touch -> in-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "hover-erase -> touch -> in-range": (
+                PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_IN_RANGE,
+            ),
+            "touch -> erase -> touch -> erase": (
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_ERASING,
+                PenState.PEN_IS_IN_CONTACT,
+                PenState.PEN_IS_ERASING,
+            ),
+        }
+
+
+class Pen(object):
+    def __init__(self, x, y):
+        self.x = x
+        self.y = y
+        self.distance = -10
+        self.tipswitch = False
+        self.tippressure = 15
+        self.azimuth = 0
+        self.inrange = False
+        self.width = 10
+        self.height = 10
+        self.barrelswitch = False
+        self.secondarybarrelswitch = False
+        self.invert = False
+        self.eraser = False
+        self.xtilt = 1
+        self.ytilt = 1
+        self.twist = 1
+        self._old_values = None
+        self.current_state = None
+
+    def restore(self):
+        if self._old_values is not None:
+            for i in [
+                "x",
+                "y",
+                "distance",
+                "tippressure",
+                "azimuth",
+                "width",
+                "height",
+                "twist",
+                "xtilt",
+                "ytilt",
+            ]:
+                setattr(self, i, getattr(self._old_values, i))
+
+    def backup(self):
+        self._old_values = copy.copy(self)
+
+    def __assert_axis(self, evdev, axis, value):
+        if (
+            axis == libevdev.EV_KEY.BTN_TOOL_RUBBER
+            and evdev.value[libevdev.EV_KEY.BTN_TOOL_RUBBER] is None
+        ):
+            return
+
+        assert (
+            evdev.value[axis] == value
+        ), f"assert evdev.value[{axis}] ({evdev.value[axis]}) != {value}"
+
+    def assert_expected_input_events(self, evdev, button):
+        assert evdev.value[libevdev.EV_ABS.ABS_X] == self.x
+        assert evdev.value[libevdev.EV_ABS.ABS_Y] == self.y
+
+        # assert no other buttons than the tested ones are set
+        buttons = [
+            BtnPressed.PRIMARY_PRESSED,
+            BtnPressed.SECONDARY_PRESSED,
+            BtnPressed.THIRD_PRESSED,
+        ]
+        if button is not None:
+            buttons.remove(button)
+        for b in buttons:
+            assert evdev.value[b.value] is None or evdev.value[b.value] == False
+
+        assert self.current_state == PenState.from_evdev(evdev, button)
+
+
+class PenDigitizer(base.UHIDTestDevice):
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Pen",
+        physical="Stylus",
+        input_info=(BusType.USB, 1, 2),
+        evdev_name_suffix=None,
+    ):
+        super().__init__(name, application, rdesc_str, rdesc, input_info)
+        self.physical = physical
+        self.cur_application = application
+        if evdev_name_suffix is not None:
+            self.name += evdev_name_suffix
+
+        self.fields = []
+        for r in self.parsed_rdesc.input_reports.values():
+            if r.application_name == self.application:
+                physicals = [f.physical_name for f in r]
+                if self.physical not in physicals and None not in physicals:
+                    continue
+                self.fields = [f.usage_name for f in r]
+
+    def move_to(self, pen, state, button):
+        # fill in the previous values
+        if pen.current_state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.restore()
+
+        print(f"\n  *** pen is moving to {state} ***")
+
+        if state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.backup()
+            pen.x = 0
+            pen.y = 0
+            pen.tipswitch = False
+            pen.tippressure = 0
+            pen.azimuth = 0
+            pen.distance = 0
+            pen.inrange = False
+            pen.width = 0
+            pen.height = 0
+            pen.invert = False
+            pen.eraser = False
+            pen.xtilt = 0
+            pen.ytilt = 0
+            pen.twist = 0
+            pen.barrelswitch = False
+            pen.secondarybarrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarybarrelswitch = False
+        elif state == PenState.PEN_IS_IN_CONTACT:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarybarrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.secondarybarrelswitch = button == BtnPressed.SECONDARY_PRESSED
+        elif state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.secondarybarrelswitch = button == BtnPressed.SECONDARY_PRESSED
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = True
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarybarrelswitch = False
+        elif state == PenState.PEN_IS_ERASING:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = True
+            pen.barrelswitch = False
+            pen.secondarybarrelswitch = False
+
+        pen.current_state = state
+
+    def event(self, pen, button):
+        rs = []
+        r = self.create_report(application=self.cur_application, data=pen)
+        self.call_input_event(r)
+        rs.append(r)
+        return rs
+
+    def get_report(self, req, rnum, rtype):
+        if rtype != self.UHID_FEATURE_REPORT:
+            return (1, [])
+
+        rdesc = None
+        for v in self.parsed_rdesc.feature_reports.values():
+            if v.report_ID == rnum:
+                rdesc = v
+
+        if rdesc is None:
+            return (1, [])
+
+        return (1, [])
+
+    def set_report(self, req, rnum, rtype, data):
+        if rtype != self.UHID_FEATURE_REPORT:
+            return 1
+
+        rdesc = None
+        for v in self.parsed_rdesc.feature_reports.values():
+            if v.report_ID == rnum:
+                rdesc = v
+
+        if rdesc is None:
+            return 1
+
+        return 1
+
+
+class BaseTest:
+    class TestTablet(base.BaseTestCase.TestUhid):
+        def create_device(self):
+            raise Exception("please reimplement me in subclasses")
+
+        def post(self, uhdev, pen, test_button):
+            r = uhdev.event(pen, test_button)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+            return events
+
+        def validate_transitions(
+            self, from_state, pen, evdev, events, allow_intermediate_states, button
+        ):
+            # check that the final state is correct
+            pen.assert_expected_input_events(evdev, button)
+
+            state = from_state
+
+            # check that the transitions are valid
+            sync_events = []
+            while libevdev.InputEvent(libevdev.EV_SYN.SYN_REPORT) in events:
+                # split the first EV_SYN from the list
+                idx = events.index(libevdev.InputEvent(libevdev.EV_SYN.SYN_REPORT))
+                sync_events = events[:idx]
+                events = events[idx + 1 :]
+
+                # now check for a valid transition
+                state = state.apply(sync_events, not allow_intermediate_states, button)
+
+            if events:
+                state = state.apply(sync_events, not allow_intermediate_states, button)
+
+        def _test_states(
+            self, state_list, scribble, allow_intermediate_states, button=None
+        ):
+            """Internal method to test against a list of
+            transition between states.
+            state_list is a list of PenState objects
+            scribble is a boolean which tells if we need
+            to wobble a little the X,Y coordinates of the pen
+            between each state transition."""
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+
+            cur_state = PenState.PEN_IS_OUT_OF_RANGE
+
+            p = Pen(50, 60)
+            uhdev.move_to(p, PenState.PEN_IS_OUT_OF_RANGE, button)
+            events = self.post(uhdev, p, button)
+            self.validate_transitions(
+                cur_state, p, evdev, events, allow_intermediate_states, button
+            )
+
+            cur_state = p.current_state
+
+            for state in state_list:
+                if scribble and cur_state != PenState.PEN_IS_OUT_OF_RANGE:
+                    p.x += 1
+                    p.y -= 1
+                    events = self.post(uhdev, p, button)
+                    self.validate_transitions(
+                        cur_state, p, evdev, events, allow_intermediate_states, button
+                    )
+                    assert len(events) >= 3  # X, Y, SYN
+                uhdev.move_to(p, state, button)
+                if scribble and state != PenState.PEN_IS_OUT_OF_RANGE:
+                    p.x += 1
+                    p.y -= 1
+                events = self.post(uhdev, p, button)
+                self.validate_transitions(
+                    cur_state, p, evdev, events, allow_intermediate_states, button
+                )
+                cur_state = p.current_state
+
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [pytest.param(v, id=k) for k, v in PenState.legal_transitions().items()],
+        )
+        def test_valid_pen_states(self, state_list, scribble):
+            """This is the first half of the Windows Pen Implementation state machine:
+            we don't have Invert nor Erase bits, so just move in/out-of-range or proximity.
+            https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+            """
+            self._test_states(state_list, scribble, allow_intermediate_states=False)
+
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.tolerated_transitions().items()
+            ],
+        )
+        def test_tolerated_pen_states(self, state_list, scribble):
+            """This is not adhering to the Windows Pen Implementation state machine
+            but we should expect the kernel to behave properly, mostly for historical
+            reasons."""
+            self._test_states(state_list, scribble, allow_intermediate_states=True)
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Barrel Switch" not in uhdev.fields,
+            "Device not compatible, missing Barrel Switch usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.legal_transitions_with_button().items()
+            ],
+        )
+        def test_valid_primary_button_pen_states(self, state_list, scribble):
+            """Rework the transition state machine by adding the primary button."""
+            self._test_states(
+                state_list,
+                scribble,
+                allow_intermediate_states=False,
+                button=BtnPressed.PRIMARY_PRESSED,
+            )
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Secondary Barrel Switch" not in uhdev.fields,
+            "Device not compatible, missing Secondary Barrel Switch usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.legal_transitions_with_button().items()
+            ],
+        )
+        def test_valid_secondary_button_pen_states(self, state_list, scribble):
+            """Rework the transition state machine by adding the secondary button."""
+            self._test_states(
+                state_list,
+                scribble,
+                allow_intermediate_states=False,
+                button=BtnPressed.SECONDARY_PRESSED,
+            )
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Third Barrel Switch" not in uhdev.fields,
+            "Device not compatible, missing Third Barrel Switch usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.legal_transitions_with_button().items()
+            ],
+        )
+        def test_valid_third_button_pen_states(self, state_list, scribble):
+            """Rework the transition state machine by adding the secondary button."""
+            self._test_states(
+                state_list,
+                scribble,
+                allow_intermediate_states=False,
+                button=BtnPressed.THIRD_PRESSED,
+            )
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Invert" not in uhdev.fields,
+            "Device not compatible, missing Invert usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.legal_transitions_with_invert().items()
+            ],
+        )
+        def test_valid_invert_pen_states(self, state_list, scribble):
+            """This is the second half of the Windows Pen Implementation state machine:
+            we now have Invert and Erase bits, so move in/out or proximity with the intend
+            to erase.
+            https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+            """
+            self._test_states(state_list, scribble, allow_intermediate_states=False)
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Invert" not in uhdev.fields,
+            "Device not compatible, missing Invert usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [
+                pytest.param(v, id=k)
+                for k, v in PenState.tolerated_transitions_with_invert().items()
+            ],
+        )
+        def test_tolerated_invert_pen_states(self, state_list, scribble):
+            """This is the second half of the Windows Pen Implementation state machine:
+            we now have Invert and Erase bits, so move in/out or proximity with the intend
+            to erase.
+            https://docs.microsoft.com/en-us/windows-hardware/design/component-guidelines/windows-pen-states
+            """
+            self._test_states(state_list, scribble, allow_intermediate_states=True)
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Invert" not in uhdev.fields,
+            "Device not compatible, missing Invert usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [pytest.param(v, id=k) for k, v in PenState.broken_transitions().items()],
+        )
+        def test_tolerated_broken_pen_states(self, state_list, scribble):
+            """Those tests are definitely not part of the Windows specification.
+            However, a half broken device might export those transitions.
+            For example, a pen that has the eraser button might wobble between
+            touching and erasing if the tablet doesn't enforce the Windows
+            state machine."""
+            self._test_states(state_list, scribble, allow_intermediate_states=True)
+
+        @pytest.mark.skip_if_uhdev(
+            lambda uhdev: "Z" not in uhdev.fields,
+            "Device not compatible, missing Z usage",
+        )
+        @pytest.mark.parametrize("scribble", [True, False], ids=["scribble", "static"])
+        @pytest.mark.parametrize(
+            "state_list",
+            [pytest.param(v, id=k) for k, v in PenState.legal_transitions().items()],
+        )
+        def test_z_reported_as_distance(self, state_list, scribble):
+            """Verify stylus Z values are reported as ABS_DISTANCE."""
+            self._test_states(state_list, scribble, allow_intermediate_states=False)
+
+            uhdev = self.uhdev
+            evdev = uhdev.get_evdev()
+            p = Pen(0, 0)
+            uhdev.move_to(p, PenState.PEN_IS_OUT_OF_RANGE, None)
+            p = Pen(100, 200)
+            uhdev.move_to(p, PenState.PEN_IS_IN_RANGE, None)
+            p.distance = -1
+            events = self.post(uhdev, p, None)
+            assert evdev.value[libevdev.EV_ABS.ABS_DISTANCE] == -1
+
+
+class GXTP_pen(PenDigitizer):
+    def event(self, pen, test_button):
+        if not hasattr(self, "prev_tip_state"):
+            self.prev_tip_state = False
+
+        internal_pen = copy.copy(pen)
+
+        # bug in the controller: when the pen touches the
+        # surface, in-range stays to 1, but when
+        # the pen moves in-range gets reverted to 0
+        if pen.tipswitch and self.prev_tip_state:
+            internal_pen.inrange = False
+
+        self.prev_tip_state = pen.tipswitch
+
+        # another bug in the controller: when the pen is
+        # inverted, invert is set to 1, but as soon as
+        # the pen touches the surface, eraser is correctly
+        # set to 1 but invert is released
+        if pen.eraser:
+            internal_pen.invert = False
+
+        return super().event(internal_pen, test_button)
+
+
+class USIPen(PenDigitizer):
+    pass
+
+
+class XPPen_ArtistPro16Gen2_28bd_095b(PenDigitizer):
+    """
+    Pen with two buttons and a rubber end, but which reports
+    the second button as an eraser
+    """
+
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Pen",
+        physical="Stylus",
+        input_info=(BusType.USB, 0x28BD, 0x095B),
+        evdev_name_suffix=None,
+    ):
+        super().__init__(
+            name, rdesc_str, rdesc, application, physical, input_info, evdev_name_suffix
+        )
+        self.fields.append("Secondary Barrel Switch")
+
+    def move_to(self, pen, state, button):
+        # fill in the previous values
+        if pen.current_state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.restore()
+
+        print(f"\n  *** pen is moving to {state} ***")
+
+        if state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.backup()
+            pen.x = 0
+            pen.y = 0
+            pen.tipswitch = False
+            pen.tippressure = 0
+            pen.azimuth = 0
+            pen.inrange = False
+            pen.width = 0
+            pen.height = 0
+            pen.invert = False
+            pen.eraser = False
+            pen.xtilt = 0
+            pen.ytilt = 0
+            pen.twist = 0
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_CONTACT:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.eraser = button == BtnPressed.SECONDARY_PRESSED
+        elif state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.eraser = button == BtnPressed.SECONDARY_PRESSED
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = True
+            pen.eraser = False
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_ERASING:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = True
+            pen.eraser = False
+            pen.barrelswitch = False
+
+        pen.current_state = state
+
+    def event(self, pen, test_button):
+        import math
+
+        pen_copy = copy.copy(pen)
+        width = 13.567
+        height = 8.480
+        tip_height = 0.055677699
+        hx = tip_height * (32767 / width)
+        hy = tip_height * (32767 / height)
+        if pen_copy.xtilt != 0:
+            pen_copy.x += round(hx * math.sin(math.radians(pen_copy.xtilt)))
+        if pen_copy.ytilt != 0:
+            pen_copy.y += round(hy * math.sin(math.radians(pen_copy.ytilt)))
+
+        return super().event(pen_copy, test_button)
+
+
+class XPPen_Artist24_28bd_093a(PenDigitizer):
+    """
+    Pen that reports secondary barrel switch through eraser
+    """
+
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Pen",
+        physical="Stylus",
+        input_info=(BusType.USB, 0x28BD, 0x093A),
+        evdev_name_suffix=None,
+    ):
+        super().__init__(
+            name, rdesc_str, rdesc, application, physical, input_info, evdev_name_suffix
+        )
+        self.fields.append("Secondary Barrel Switch")
+        self.previous_state = PenState.PEN_IS_OUT_OF_RANGE
+
+    def move_to(self, pen, state, button, debug=True):
+        # fill in the previous values
+        if pen.current_state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.restore()
+
+        if debug:
+            print(f"\n  *** pen is moving to {state} ***")
+
+        if state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.backup()
+            pen.tipswitch = False
+            pen.tippressure = 0
+            pen.azimuth = 0
+            pen.inrange = False
+            pen.width = 0
+            pen.height = 0
+            pen.invert = False
+            pen.eraser = False
+            pen.xtilt = 0
+            pen.ytilt = 0
+            pen.twist = 0
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_CONTACT:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.eraser = button == BtnPressed.SECONDARY_PRESSED
+        elif state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.eraser = button == BtnPressed.SECONDARY_PRESSED
+
+        pen.current_state = state
+
+    def send_intermediate_state(self, pen, state, button):
+        intermediate_pen = copy.copy(pen)
+        self.move_to(intermediate_pen, state, button, debug=False)
+        return super().event(intermediate_pen, button)
+
+    def event(self, pen, button):
+        rs = []
+
+        # the pen reliably sends in-range events in a normal case (non emulation of eraser mode)
+        if self.previous_state == PenState.PEN_IS_IN_CONTACT:
+            if pen.current_state == PenState.PEN_IS_OUT_OF_RANGE:
+                rs.extend(
+                    self.send_intermediate_state(pen, PenState.PEN_IS_IN_RANGE, button)
+                )
+
+        if button == BtnPressed.SECONDARY_PRESSED:
+            if self.previous_state == PenState.PEN_IS_IN_RANGE:
+                if pen.current_state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_OUT_OF_RANGE, button
+                        )
+                    )
+
+            if self.previous_state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+                if pen.current_state == PenState.PEN_IS_IN_RANGE:
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_OUT_OF_RANGE, button
+                        )
+                    )
+
+            if self.previous_state == PenState.PEN_IS_IN_CONTACT:
+                if pen.current_state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_OUT_OF_RANGE, button
+                        )
+                    )
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_IN_RANGE_WITH_BUTTON, button
+                        )
+                    )
+
+            if self.previous_state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+                if pen.current_state == PenState.PEN_IS_IN_CONTACT:
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_OUT_OF_RANGE, button
+                        )
+                    )
+                    rs.extend(
+                        self.send_intermediate_state(
+                            pen, PenState.PEN_IS_IN_RANGE, button
+                        )
+                    )
+
+        rs.extend(super().event(pen, button))
+        self.previous_state = pen.current_state
+        return rs
+
+
+class Huion_Kamvas_Pro_19_256c_006b(PenDigitizer):
+    """
+    Pen that reports secondary barrel switch through secondary TipSwtich
+    and 3rd button through Invert
+    """
+
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Stylus",
+        physical=None,
+        input_info=(BusType.USB, 0x256C, 0x006B),
+        evdev_name_suffix=None,
+    ):
+        super().__init__(
+            name, rdesc_str, rdesc, application, physical, input_info, evdev_name_suffix
+        )
+        self.fields.append("Secondary Barrel Switch")
+        self.fields.append("Third Barrel Switch")
+        self.previous_state = PenState.PEN_IS_OUT_OF_RANGE
+
+    def move_to(self, pen, state, button, debug=True):
+        # fill in the previous values
+        if pen.current_state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.restore()
+
+        if debug:
+            print(f"\n  *** pen is moving to {state} ***")
+
+        if state == PenState.PEN_IS_OUT_OF_RANGE:
+            pen.backup()
+            pen.tipswitch = False
+            pen.tippressure = 0
+            pen.azimuth = 0
+            pen.inrange = False
+            pen.width = 0
+            pen.height = 0
+            pen.invert = False
+            pen.eraser = False
+            pen.xtilt = 0
+            pen.ytilt = 0
+            pen.twist = 0
+            pen.barrelswitch = False
+            pen.secondarytipswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarytipswitch = False
+        elif state == PenState.PEN_IS_IN_CONTACT:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarytipswitch = False
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.eraser = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.secondarytipswitch = button == BtnPressed.SECONDARY_PRESSED
+            pen.invert = button == BtnPressed.THIRD_PRESSED
+        elif state == PenState.PEN_IS_IN_CONTACT_WITH_BUTTON:
+            pen.tipswitch = True
+            pen.inrange = True
+            pen.eraser = False
+            assert button is not None
+            pen.barrelswitch = button == BtnPressed.PRIMARY_PRESSED
+            pen.secondarytipswitch = button == BtnPressed.SECONDARY_PRESSED
+            pen.invert = button == BtnPressed.THIRD_PRESSED
+        elif state == PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = True
+            pen.eraser = False
+            pen.barrelswitch = False
+            pen.secondarytipswitch = False
+        elif state == PenState.PEN_IS_ERASING:
+            pen.tipswitch = False
+            pen.inrange = True
+            pen.invert = False
+            pen.eraser = True
+            pen.barrelswitch = False
+            pen.secondarytipswitch = False
+
+        pen.current_state = state
+
+    def call_input_event(self, report):
+        if report[0] == 0x0A:
+            # ensures the original second Eraser usage is null
+            report[1] &= 0xDF
+
+            # ensures the original last bit is equal to bit 6 (In Range)
+            if report[1] & 0x40:
+                report[1] |= 0x80
+
+        super().call_input_event(report)
+
+    def send_intermediate_state(self, pen, state, test_button):
+        intermediate_pen = copy.copy(pen)
+        self.move_to(intermediate_pen, state, test_button, debug=False)
+        return super().event(intermediate_pen, test_button)
+
+    def event(self, pen, button):
+        rs = []
+
+        # it's not possible to go between eraser mode or not without
+        # going out-of-prox: the eraser mode is activated by presenting
+        # the tail of the pen
+        if self.previous_state in (
+            PenState.PEN_IS_IN_RANGE,
+            PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+            PenState.PEN_IS_IN_CONTACT,
+            PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+        ) and pen.current_state in (
+            PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT_WITH_BUTTON,
+            PenState.PEN_IS_ERASING,
+            PenState.PEN_IS_ERASING_WITH_BUTTON,
+        ):
+            rs.extend(
+                self.send_intermediate_state(pen, PenState.PEN_IS_OUT_OF_RANGE, button)
+            )
+
+        # same than above except from eraser to normal
+        if self.previous_state in (
+            PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT,
+            PenState.PEN_IS_IN_RANGE_WITH_ERASING_INTENT_WITH_BUTTON,
+            PenState.PEN_IS_ERASING,
+            PenState.PEN_IS_ERASING_WITH_BUTTON,
+        ) and pen.current_state in (
+            PenState.PEN_IS_IN_RANGE,
+            PenState.PEN_IS_IN_RANGE_WITH_BUTTON,
+            PenState.PEN_IS_IN_CONTACT,
+            PenState.PEN_IS_IN_CONTACT_WITH_BUTTON,
+        ):
+            rs.extend(
+                self.send_intermediate_state(pen, PenState.PEN_IS_OUT_OF_RANGE, button)
+            )
+
+        if self.previous_state == PenState.PEN_IS_OUT_OF_RANGE:
+            if pen.current_state == PenState.PEN_IS_IN_RANGE_WITH_BUTTON:
+                rs.extend(
+                    self.send_intermediate_state(pen, PenState.PEN_IS_IN_RANGE, button)
+                )
+
+        rs.extend(super().event(pen, button))
+        self.previous_state = pen.current_state
+        return rs
+
+
+class Wacom_2d1f_014b(PenDigitizer):
+    """
+    Pen that reports distance values with HID_GD_Z usage.
+    """
+    def __init__(
+        self,
+        name,
+        rdesc_str=None,
+        rdesc=None,
+        application="Pen",
+        physical="Stylus",
+        input_info=(BusType.USB, 0x2D1F, 0x014B),
+        evdev_name_suffix=None,
+    ):
+        super().__init__(
+            name, rdesc_str, rdesc, application, physical, input_info, evdev_name_suffix
+        )
+
+    def match_evdev_rule(self, application, evdev):
+        # there are 2 nodes created by the device, only one matters
+        return evdev.name.endswith("Stylus")
+
+    def event(self, pen, test_button):
+        # this device reports the distance through Z
+        pen.z = pen.distance
+
+        return super().event(pen, test_button)
+
+
+################################################################################
+#
+# Windows 7 compatible devices
+#
+################################################################################
+# class TestEgalax_capacitive_0eef_7224(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_7224',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 34 49 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 37 29 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 34 49 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 37 29 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x7224),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#
+# class TestEgalax_capacitive_0eef_72fa(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_72fa',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 72 22 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 87 13 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 72 22 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 87 13 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x72fa),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#
+# class TestEgalax_capacitive_0eef_7336(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_7336',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 c1 20 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 c2 18 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 c1 20 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 c2 18 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x7336),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#
+# class TestEgalax_capacitive_0eef_7337(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_7337',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 ae 17 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 c3 0e 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 ae 17 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 c3 0e 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x7337),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#
+# class TestEgalax_capacitive_0eef_7349(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_7349',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 34 49 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 37 29 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 34 49 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 37 29 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x7349),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#
+# class TestEgalax_capacitive_0eef_73f4(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test egalax-capacitive_0eef_73f4',
+#                             rdesc='05 0d 09 04 a1 01 85 04 09 22 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 09 32 15 00 25 01 81 02 09 51 75 05 95 01 16 00 00 26 10 00 81 02 09 47 75 01 95 01 15 00 25 01 81 02 05 01 09 30 75 10 95 01 55 0d 65 33 35 00 46 96 4e 26 ff 7f 81 02 09 31 75 10 95 01 55 0d 65 33 35 00 46 23 2c 26 ff 7f 81 02 05 0d 09 55 25 08 75 08 95 01 b1 02 c0 c0 05 01 09 01 a1 01 85 01 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 01 75 06 81 01 05 01 09 30 09 31 16 00 00 26 ff 0f 36 00 00 46 ff 0f 66 00 00 75 10 95 02 81 02 c0 c0 06 00 ff 09 01 a1 01 09 01 15 00 26 ff 00 85 03 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0 05 0d 09 04 a1 01 85 02 09 20 a1 00 09 42 09 32 15 00 25 01 95 02 75 01 81 02 95 06 75 01 81 03 05 01 09 30 75 10 95 01 a4 55 0d 65 33 36 00 00 46 96 4e 16 00 00 26 ff 0f 81 02 09 31 16 00 00 26 ff 0f 36 00 00 46 23 2c 81 02 b4 c0 c0 05 0d 09 0e a1 01 85 05 09 22 a1 00 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x0eef, 0x73f4),
+#                             evdev_name_suffix=' Touchscreen')
+#
+#  bogus: BTN_TOOL_PEN is not emitted
+# class TestIrtouch_6615_0070(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test irtouch_6615_0070',
+#                             rdesc='05 01 09 02 a1 01 85 10 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 95 02 75 01 81 02 95 06 81 03 05 01 09 30 09 31 15 00 26 ff 7f 75 10 95 02 81 02 c0 c0 05 0d 09 04 a1 01 85 30 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 09 51 75 08 95 01 81 02 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 c0 05 0d 09 54 15 00 26 02 00 75 08 95 01 81 02 85 03 09 55 15 00 26 ff 00 75 08 95 01 b1 02 c0 05 0d 09 0e a1 01 85 02 09 52 09 53 15 00 26 ff 00 75 08 95 02 b1 02 c0 05 0d 09 02 a1 01 85 20 09 20 a1 00 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 03 05 01 09 30 26 ff 7f 55 0f 65 11 35 00 46 51 02 75 10 95 01 81 02 09 31 35 00 46 73 01 81 02 85 01 06 00 ff 09 01 75 08 95 01 b1 02 c0 c0',
+#                             input_info=(BusType.USB, 0x6615, 0x0070))
+
+
+class TestNexio_1870_0100(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test nexio_1870_0100",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 02 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 40 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x0100),
+        )
+
+
+class TestNexio_1870_010d(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test nexio_1870_010d",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 06 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 3e 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x010D),
+        )
+
+
+class TestNexio_1870_0119(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test nexio_1870_0119",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 95 06 81 03 75 08 09 51 95 01 81 02 05 01 26 ff 3f 75 10 55 0d 65 00 09 30 35 00 46 00 00 81 02 26 ff 3f 09 31 35 00 46 00 00 81 02 26 ff 3f 05 0d 09 48 35 00 26 ff 3f 81 02 09 49 35 00 26 ff 3f 81 02 c0 05 0d 09 54 95 01 75 08 25 02 81 02 85 02 09 55 25 06 b1 02 c0 09 0e a1 01 85 03 09 23 a1 02 09 52 09 53 15 00 25 0a 75 08 95 02 b1 02 c0 c0 05 01 09 02 a1 01 09 01 a1 00 85 04 05 09 95 03 75 01 19 01 29 03 15 00 25 01 81 02 95 01 75 05 81 01 05 01 75 10 95 02 09 30 09 31 15 00 26 ff 7f 81 02 c0 c0 05 0d 09 02 a1 01 85 05 09 20 a1 00 09 42 09 32 15 00 25 01 75 01 95 02 81 02 95 0e 81 03 05 01 26 ff 3f 75 10 95 01 55 0e 65 11 09 30 35 00 46 1e 19 81 02 26 ff 3f 09 31 35 00 46 be 0f 81 02 26 ff 3f c0 c0 06 00 ff 09 01 a1 01 85 06 19 01 29 40 15 00 26 ff 00 75 08 95 3e 81 00 19 01 29 40 91 00 c0",
+            input_info=(BusType.USB, 0x1870, 0x0119),
+        )
+
+
+################################################################################
+#
+# Windows 8 compatible devices
+#
+################################################################################
+
+# bogus: application is 'undefined'
+# class Testatmel_03eb_8409(BaseTest.TestTablet):
+#     def create_device(self):
+#         return PenDigitizer('uhid test atmel_03eb_8409', rdesc='05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 35 00 35 00 46 18 06 26 77 0f 09 31 81 02 35 00 35 00 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 48 81 02 09 49 81 02 c0 05 0d 27 ff ff 00 00 75 10 95 01 09 56 81 02 15 00 25 1f 75 05 09 54 95 01 81 02 75 03 25 01 95 01 81 03 75 08 85 02 09 55 25 10 b1 02 06 00 ff 85 05 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 00 a1 01 85 03 09 20 a1 00 15 00 25 01 75 01 95 01 09 42 81 02 09 44 81 02 09 45 81 02 81 03 09 32 81 02 95 03 81 03 05 01 55 0e 65 11 35 00 75 10 95 02 46 c8 0a 26 6f 08 09 30 81 02 46 18 06 26 77 0f 09 31 81 02 05 0d 09 30 15 01 26 ff 00 75 08 95 01 81 02 c0 c0')
+
+
+class Testatmel_03eb_840b(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test atmel_03eb_840b",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 95 01 81 03 25 1f 75 05 09 51 81 02 05 01 55 0e 65 11 35 00 75 10 95 01 46 00 0a 26 ff 0f 09 30 81 02 09 00 81 03 46 a0 05 26 ff 0f 09 31 81 02 09 00 81 03 05 0d 95 01 75 08 15 00 26 ff 00 46 ff 00 09 00 81 03 09 00 81 03 c0 05 0d 27 ff ff 00 00 75 10 95 01 09 56 81 02 15 00 25 1f 75 05 09 54 95 01 81 02 75 03 25 01 95 01 81 03 75 08 85 02 09 55 25 10 b1 02 06 00 ff 85 05 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 02 a1 01 85 03 09 20 a1 00 15 00 25 01 75 01 95 01 09 42 81 02 09 44 81 02 09 45 81 02 81 03 09 32 81 02 95 03 81 03 05 01 55 0e 65 11 35 00 75 10 95 02 46 00 0a 26 ff 0f 09 30 81 02 46 a0 05 26 ff 0f 09 31 81 02 05 0d 09 30 15 01 26 ff 00 75 08 95 01 81 02 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0c01(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test n_trig_1b96_0c01",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 09 32 81 02 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0c03(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test n_trig_1b96_0c03",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 15 0a 26 80 25 81 02 09 31 46 b4 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0f00(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test n_trig_1b96_0f00",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_0f04(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test n_trig_1b96_0f04",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 7f 0b 26 80 25 81 02 09 31 46 78 06 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class Testn_trig_1b96_1000(BaseTest.TestTablet):
+    def create_device(self):
+        return PenDigitizer(
+            "uhid test n_trig_1b96_1000",
+            rdesc="75 08 15 00 26 ff 00 06 0b ff 09 0b a1 01 95 0f 09 29 85 29 b1 02 95 1f 09 2a 85 2a b1 02 95 3e 09 2b 85 2b b1 02 95 fe 09 2c 85 2c b1 02 96 fe 01 09 2d 85 2d b1 02 95 02 09 48 85 48 b1 02 95 0f 09 2e 85 2e 81 02 95 1f 09 2f 85 2f 81 02 95 3e 09 30 85 30 81 02 95 fe 09 31 85 31 81 02 96 fe 01 09 32 85 32 81 02 75 08 96 fe 0f 09 35 85 35 81 02 c0 05 0d 09 02 a1 01 85 01 09 20 35 00 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 b4 05 0d 09 30 26 00 01 81 02 06 00 ff 09 01 81 02 c0 85 0c 06 00 ff 09 0c 75 08 95 06 26 ff 00 b1 02 85 0b 09 0b 95 02 b1 02 85 11 09 11 b1 02 85 15 09 15 95 05 b1 02 85 18 09 18 95 0c b1 02 c0 05 0d 09 04 a1 01 85 03 06 00 ff 09 01 75 10 95 01 15 00 27 ff ff 00 00 81 02 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 01 81 03 09 47 81 02 95 05 81 03 75 10 09 51 27 ff ff 00 00 95 01 81 02 05 01 09 30 75 10 95 02 a4 55 0e 65 11 46 03 0a 26 80 25 81 02 09 31 46 a1 05 26 20 1c 81 02 05 0d 09 48 95 01 26 80 25 81 02 09 49 26 20 1c 81 02 b4 06 00 ff 09 02 75 08 95 04 15 00 26 ff 00 81 02 c0 05 0d 09 54 95 01 75 08 81 02 09 56 75 20 95 01 27 ff ff ff 0f 81 02 85 04 09 55 75 08 95 01 25 0b b1 02 85 0a 06 00 ff 09 03 15 00 b1 02 85 1b 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 01 09 02 a1 01 85 02 09 01 a1 00 05 09 19 01 29 02 15 00 25 01 75 01 95 02 81 02 95 06 81 03 05 01 09 30 09 31 15 81 25 7f 75 08 95 02 81 06 c0 c0",
+        )
+
+
+class TestGXTP_27c6_0113(BaseTest.TestTablet):
+    def create_device(self):
+        return GXTP_pen(
+            "uhid test GXTP_27c6_0113",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 55 0e 65 11 35 00 15 00 09 42 25 01 75 01 95 01 81 02 95 07 81 01 95 01 75 08 09 51 81 02 75 10 05 01 26 00 14 46 1f 07 09 30 81 02 26 80 0c 46 77 04 09 31 81 02 05 0d c0 09 22 a1 02 09 42 25 01 75 01 95 01 81 02 95 07 81 01 95 01 75 08 09 51 81 02 75 10 05 01 26 00 14 46 1f 07 09 30 81 02 26 80 0c 46 77 04 09 31 81 02 05 0d c0 09 22 a1 02 09 42 25 01 75 01 95 01 81 02 95 07 81 01 95 01 75 08 09 51 81 02 75 10 05 01 26 00 14 46 1f 07 09 30 81 02 26 80 0c 46 77 04 09 31 81 02 05 0d c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 01 75 08 09 51 95 01 81 02 05 01 26 00 14 75 10 55 0e 65 11 09 30 35 00 46 1f 07 81 02 26 80 0c 46 77 04 09 31 81 02 05 0d c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 95 07 81 01 75 08 09 51 95 01 81 02 05 01 26 00 14 75 10 55 0e 65 11 09 30 35 00 46 1f 07 81 02 26 80 0c 46 77 04 09 31 81 02 05 0d c0 09 54 15 00 25 7f 75 08 95 01 81 02 85 02 09 55 95 01 25 0a b1 02 85 03 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 02 a1 01 85 08 09 20 a1 00 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 04 81 02 95 01 81 03 09 32 81 02 95 02 81 03 95 01 75 08 09 51 81 02 05 01 09 30 75 10 95 01 a4 55 0e 65 11 35 00 26 00 14 46 1f 07 81 42 09 31 26 80 0c 46 77 04 81 42 b4 05 0d 09 30 26 ff 0f 81 02 09 3d 65 14 55 0e 36 d8 dc 46 28 23 16 d8 dc 26 28 23 81 02 09 3e 81 02 c0 c0 06 f0 ff 09 01 a1 01 85 0e 09 01 15 00 25 ff 75 08 95 40 91 02 09 01 15 00 25 ff 75 08 95 40 81 02 c0 05 01 09 06 a1 01 85 04 05 07 09 e3 15 00 25 01 75 01 95 01 81 02 95 07 81 03 c0",
+        )
+
+
+################################################################################
+#
+# Windows 8 compatible devices with USI Pen
+#
+################################################################################
+
+
+class TestElan_04f3_2A49(BaseTest.TestTablet):
+    def create_device(self):
+        return USIPen(
+            "uhid test Elan_04f3_2A49",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 55 0f 65 11 35 00 45 ff 09 48 81 02 09 49 81 02 09 30 81 02 95 01 05 01 a4 26 cf 0f 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 01 81 02 26 77 0a 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 55 0f 65 11 35 00 45 ff 09 48 81 02 09 49 81 02 09 30 81 02 95 01 05 01 a4 26 cf 0f 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 01 81 02 26 77 0a 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 55 0f 65 11 35 00 45 ff 09 48 81 02 09 49 81 02 09 30 81 02 95 01 05 01 a4 26 cf 0f 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 01 81 02 26 77 0a 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 55 0f 65 11 35 00 45 ff 09 48 81 02 09 49 81 02 09 30 81 02 95 01 05 01 a4 26 cf 0f 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 01 81 02 26 77 0a 46 a6 00 09 31 81 02 b4 c0 05 0d 09 22 a1 02 05 0d 09 42 15 00 25 01 75 01 95 01 81 02 75 01 81 03 75 06 09 51 25 3f 81 02 26 ff 00 75 08 55 0f 65 11 35 00 45 ff 09 48 81 02 09 49 81 02 09 30 81 02 95 01 05 01 a4 26 cf 0f 75 10 55 0f 65 11 09 30 35 00 46 26 01 95 01 81 02 26 77 0a 46 a6 00 09 31 81 02 b4 c0 05 0d 09 54 25 7f 96 01 00 75 08 81 02 85 0a 09 55 25 0a b1 02 85 44 06 00 ff 09 c5 16 00 00 26 ff 00 75 08 96 00 01 b1 02 c0 06 ff 01 09 01 a1 01 85 02 16 00 00 26 ff 00 75 08 95 40 09 00 81 02 c0 06 00 ff 09 01 a1 01 85 03 75 08 95 20 09 01 91 02 c0 06 00 ff 09 01 a1 01 85 06 09 03 75 08 95 12 91 02 09 04 75 08 95 03 b1 02 c0 06 01 ff 09 01 a1 01 85 04 15 00 26 ff 00 75 08 95 13 09 00 81 02 c0 05 0d 09 02 a1 01 85 07 35 00 09 20 a1 00 09 32 09 42 09 44 09 3c 09 45 15 00 25 01 75 01 95 05 81 02 95 03 81 03 05 01 09 30 75 10 95 01 a4 55 0f 65 11 46 26 01 26 1c 48 81 42 09 31 46 a6 00 26 bc 2f 81 42 b4 05 0d 09 30 26 00 10 81 02 75 08 95 01 09 3b 25 64 81 42 09 38 15 00 25 02 81 02 09 5c 26 ff 00 81 02 09 5e 81 02 09 70 a1 02 15 01 25 06 09 72 09 73 09 74 09 75 09 76 09 77 81 20 09 5b 25 ff 75 40 81 02 c0 06 00 ff 75 08 95 02 09 01 81 02 c0 05 0d 85 60 09 81 a1 02 09 38 75 08 95 01 15 00 25 02 81 02 09 81 15 01 25 04 09 82 09 83 09 84 09 85 81 20 c0 85 61 09 5c a1 02 15 00 26 ff 00 75 08 95 01 09 38 b1 02 09 5c 26 ff 00 b1 02 09 5d 75 01 95 01 25 01 b1 02 95 07 b1 03 c0 85 62 09 5e a1 02 09 38 15 00 25 02 75 08 95 01 b1 02 09 5e 26 ff 00 b1 02 09 5f 75 01 25 01 b1 02 75 07 b1 03 c0 85 63 09 70 a1 02 75 08 95 01 15 00 25 02 09 38 b1 02 09 70 a1 02 25 06 09 72 09 73 09 74 09 75 09 76 09 77 b1 20 c0 09 71 75 01 25 01 b1 02 75 07 b1 03 c0 85 64 09 80 15 00 25 ff 75 40 95 01 b1 02 85 65 09 44 a1 02 09 38 75 08 95 01 25 02 b1 02 15 01 25 03 09 44 a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 09 5a a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 09 45 a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 c0 85 66 75 08 95 01 05 0d 09 90 a1 02 09 38 25 02 b1 02 09 91 75 10 26 ff 0f b1 02 09 92 75 40 25 ff b1 02 05 06 09 2a 75 08 26 ff 00 a1 02 09 2d b1 02 09 2e b1 02 c0 c0 85 67 05 06 09 2b a1 02 05 0d 25 02 09 38 b1 02 05 06 09 2b a1 02 09 2d 26 ff 00 b1 02 09 2e b1 02 c0 c0 85 68 06 00 ff 09 01 a1 02 05 0d 09 38 75 08 95 01 25 02 b1 02 06 00 ff 09 01 75 10 27 ff ff 00 00 b1 02 c0 85 69 05 0d 09 38 75 08 95 01 15 00 25 02 b1 02 c0 06 00 ff 09 81 a1 01 85 17 75 08 95 1f 09 05 81 02 c0",
+            input_info=(BusType.I2C, 0x04F3, 0x2A49),
+        )
+
+
+class TestGoodix_27c6_0e00(BaseTest.TestTablet):
+    def create_device(self):
+        return USIPen(
+            "uhid test Elan_04f3_2A49",
+            rdesc="05 0d 09 04 a1 01 85 01 09 22 a1 02 55 0e 65 11 35 00 15 00 09 42 25 01 75 01 95 01 81 02 25 7f 09 30 75 07 81 42 95 01 75 08 09 51 81 02 75 10 05 01 26 04 20 46 e6 09 09 30 81 02 26 60 15 46 9a 06 09 31 81 02 05 0d 55 0f 75 08 25 ff 45 ff 09 48 81 42 09 49 81 42 55 0e c0 09 22 a1 02 09 42 25 01 75 01 95 01 81 02 25 7f 09 30 75 07 81 42 95 01 75 08 09 51 81 02 75 10 05 01 26 04 20 46 e6 09 09 30 81 02 26 60 15 46 9a 06 09 31 81 02 05 0d 55 0f 75 08 25 ff 45 ff 09 48 81 42 09 49 81 42 55 0e c0 09 22 a1 02 09 42 25 01 75 01 95 01 81 02 25 7f 09 30 75 07 81 42 95 01 75 08 09 51 81 02 75 10 05 01 26 04 20 46 e6 09 09 30 81 02 26 60 15 46 9a 06 09 31 81 02 05 0d 55 0f 75 08 25 ff 45 ff 09 48 81 42 09 49 81 42 55 0e c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 30 75 07 81 42 75 08 09 51 95 01 81 02 05 01 26 04 20 75 10 55 0e 65 11 09 30 35 00 46 e6 09 81 02 26 60 15 46 9a 06 09 31 81 02 05 0d 55 0f 75 08 25 ff 45 ff 09 48 81 42 09 49 81 42 55 0e c0 09 22 a1 02 09 42 15 00 25 01 75 01 95 01 81 02 25 7f 09 30 75 07 81 42 75 08 09 51 95 01 81 02 05 01 26 04 20 75 10 55 0e 65 11 09 30 35 00 46 e6 09 81 02 26 60 15 46 9a 06 09 31 81 02 05 0d 55 0f 75 08 25 ff 45 ff 09 48 81 42 09 49 81 42 55 0e c0 09 54 15 00 25 7f 75 08 95 01 81 02 85 02 09 55 95 01 25 0a b1 02 85 03 06 00 ff 09 c5 15 00 26 ff 00 75 08 96 00 01 b1 02 c0 05 0d 09 02 a1 01 09 20 a1 00 85 08 05 01 a4 09 30 35 00 46 e6 09 15 00 26 04 20 55 0d 65 13 75 10 95 01 81 02 09 31 46 9a 06 26 60 15 81 02 b4 05 0d 09 38 95 01 75 08 15 00 25 01 81 02 09 30 75 10 26 ff 0f 81 02 09 31 81 02 09 42 09 44 09 5a 09 3c 09 45 09 32 75 01 95 06 25 01 81 02 95 02 81 03 09 3d 55 0e 65 14 36 d8 dc 46 28 23 16 d8 dc 26 28 23 95 01 75 10 81 02 09 3e 81 02 09 41 15 00 27 a0 8c 00 00 35 00 47 a0 8c 00 00 81 02 05 20 0a 53 04 65 00 16 01 f8 26 ff 07 75 10 95 01 81 02 0a 54 04 81 02 0a 55 04 81 02 0a 57 04 81 02 0a 58 04 81 02 0a 59 04 81 02 0a 72 04 81 02 0a 73 04 81 02 0a 74 04 81 02 05 0d 09 3b 15 00 25 64 75 08 81 02 09 5b 25 ff 75 40 81 02 06 00 ff 09 5b 75 20 81 02 05 0d 09 5c 26 ff 00 75 08 81 02 09 5e 81 02 09 70 a1 02 15 01 25 06 09 72 09 73 09 74 09 75 09 76 09 77 81 20 c0 06 00 ff 09 01 15 00 27 ff ff 00 00 75 10 95 01 81 02 85 09 09 81 a1 02 09 81 15 01 25 04 09 82 09 83 09 84 09 85 81 20 c0 85 10 09 5c a1 02 15 00 25 01 75 08 95 01 09 38 b1 02 09 5c 26 ff 00 b1 02 09 5d 75 01 95 01 25 01 b1 02 95 07 b1 03 c0 85 11 09 5e a1 02 09 38 15 00 25 01 75 08 95 01 b1 02 09 5e 26 ff 00 b1 02 09 5f 75 01 25 01 b1 02 75 07 b1 03 c0 85 12 09 70 a1 02 75 08 95 01 15 00 25 01 09 38 b1 02 09 70 a1 02 25 06 09 72 09 73 09 74 09 75 09 76 09 77 b1 20 c0 09 71 75 01 25 01 b1 02 75 07 b1 03 c0 85 13 09 80 15 00 25 ff 75 40 95 01 b1 02 85 14 09 44 a1 02 09 38 75 08 95 01 25 01 b1 02 15 01 25 03 09 44 a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 09 5a a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 09 45 a1 02 09 a4 09 44 09 5a 09 45 09 a3 b1 20 c0 c0 85 15 75 08 95 01 05 0d 09 90 a1 02 09 38 25 01 b1 02 09 91 75 10 26 ff 0f b1 02 09 92 75 40 25 ff b1 02 05 06 09 2a 75 08 26 ff 00 a1 02 09 2d b1 02 09 2e b1 02 c0 c0 85 16 05 06 09 2b a1 02 05 0d 25 01 09 38 b1 02 05 06 09 2b a1 02 09 2d 26 ff 00 b1 02 09 2e b1 02 c0 c0 85 17 06 00 ff 09 01 a1 02 05 0d 09 38 75 08 95 01 25 01 b1 02 06 00 ff 09 01 75 10 27 ff ff 00 00 b1 02 c0 85 18 05 0d 09 38 75 08 95 01 15 00 25 01 b1 02 c0 c0 06 f0 ff 09 01 a1 01 85 0e 09 01 15 00 25 ff 75 08 95 40 91 02 09 01 15 00 25 ff 75 08 95 40 81 02 c0",
+            input_info=(BusType.I2C, 0x27C6, 0x0E00),
+        )
+
+
+class TestXPPen_ArtistPro16Gen2_28bd_095b(BaseTest.TestTablet):
+    hid_bpfs = [HidBpf("XPPen__ArtistPro16Gen2.bpf.o", True)]
+
+    def create_device(self):
+        dev = XPPen_ArtistPro16Gen2_28bd_095b(
+            "uhid test XPPen Artist Pro 16 Gen2 28bd 095b",
+            rdesc="05 0d 09 02 a1 01 85 07 09 20 a1 00 09 42 09 44 09 45 09 3c 15 00 25 01 75 01 95 04 81 02 95 01 81 03 09 32 15 00 25 01 95 01 81 02 95 02 81 03 75 10 95 01 35 00 a4 05 01 09 30 65 13 55 0d 46 ff 34 26 ff 7f 81 02 09 31 46 20 21 26 ff 7f 81 02 b4 09 30 45 00 26 ff 3f 81 42 09 3d 15 81 25 7f 75 08 95 01 81 02 09 3e 15 81 25 7f 81 02 c0 c0",
+            input_info=(BusType.USB, 0x28BD, 0x095B),
+        )
+        return dev
+
+
+class TestXPPen_Artist24_28bd_093a(BaseTest.TestTablet):
+    hid_bpfs = [HidBpf("XPPen__Artist24.bpf.o", True)]
+
+    def create_device(self):
+        return XPPen_Artist24_28bd_093a(
+            "uhid test XPPen Artist 24 28bd 093a",
+            rdesc="05 0d 09 02 a1 01 85 07 09 20 a1 00 09 42 09 44 09 45 15 00 25 01 75 01 95 03 81 02 95 02 81 03 09 32 95 01 81 02 95 02 81 03 75 10 95 01 35 00 a4 05 01 09 30 65 13 55 0d 46 f0 50 26 ff 7f 81 02 09 31 46 91 2d 26 ff 7f 81 02 b4 09 30 45 00 26 ff 1f 81 42 09 3d 15 81 25 7f 75 08 95 01 81 02 09 3e 15 81 25 7f 81 02 c0 c0",
+            input_info=(BusType.USB, 0x28BD, 0x093A),
+        )
+
+
+class TestHuion_Kamvas_Pro_19_256c_006b(BaseTest.TestTablet):
+    hid_bpfs = [HidBpf("Huion__Kamvas-Pro-19.bpf.o", True)]
+
+    def create_device(self):
+        return Huion_Kamvas_Pro_19_256c_006b(
+            "uhid test HUION Huion Tablet_GT1902",
+            rdesc="05 0d 09 02 a1 01 85 0a 09 20 a1 01 09 42 09 44 09 43 09 3c 09 45 15 00 25 01 75 01 95 06 81 02 09 32 75 01 95 01 81 02 81 03 05 01 09 30 09 31 55 0d 65 33 26 ff 7f 35 00 46 00 08 75 10 95 02 81 02 05 0d 09 30 26 ff 3f 75 10 95 01 81 02 09 3d 09 3e 15 a6 25 5a 75 08 95 02 81 02 c0 c0 05 0d 09 04 a1 01 85 04 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 ff 7f 35 00 46 15 0c 81 42 09 31 26 ff 7f 46 cb 06 81 42 05 0d 09 30 26 ff 1f 75 10 95 01 81 02 c0 05 0d 09 22 a1 02 05 0d 95 01 75 06 09 51 15 00 25 3f 81 02 09 42 25 01 75 01 95 01 81 02 75 01 95 01 81 03 05 01 75 10 55 0e 65 11 09 30 26 ff 7f 35 00 46 15 0c 81 42 09 31 26 ff 7f 46 cb 06 81 42 05 0d 09 30 26 ff 1f 75 10 95 01 81 02 c0 05 0d 09 56 55 00 65 00 27 ff ff ff 7f 95 01 75 20 81 02 09 54 25 7f 95 01 75 08 81 02 75 08 95 08 81 03 85 05 09 55 25 0a 75 08 95 01 b1 02 06 00 ff 09 c5 85 06 15 00 26 ff 00 75 08 96 00 01 b1 02 c0",
+            input_info=(BusType.USB, 0x256C, 0x006B),
+        )
+
+
+################################################################################
+#
+# Devices Reporting Distance
+#
+################################################################################
+
+
+class TestWacom_2d1f_014b(BaseTest.TestTablet):
+    def create_device(self):
+        return Wacom_2d1f_014b(
+            "uhid test Wacom 2d1f_014b",
+            rdesc="05 0d 09 02 a1 01 85 02 09 20 a1 00 09 42 09 44 09 45 09 3c 09 5a 09 32 15 00 25 01 75 01 95 06 81 02 95 02 81 03 05 01 09 30 26 88 3e 46 88 3e 65 11 55 0d 75 10 95 01 81 02 09 31 26 60 53 46 60 53 81 02 05 0d 09 30 26 ff 0f 45 00 65 00 55 00 81 02 06 00 ff 09 04 75 08 26 ff 00 46 ff 00 65 11 55 0e 81 02 05 0d 09 3d 75 10 16 d8 dc 26 28 23 36 d8 dc 46 28 23 65 14 81 02 09 3e 81 02 05 01 09 32 16 01 ff 25 00 36 01 ff 45 00 65 11 81 02 05 0d 09 56 15 00 27 ff ff 00 00 35 00 47 ff ff 00 00 66 01 10 55 0c 81 02 45 00 65 00 55 00 c0 09 00 75 08 26 ff 00 b1 12 85 03 09 00 95 12 b1 12 85 05 09 00 95 04 b1 02 85 06 09 00 95 24 b1 02 85 16 09 00 15 00 26 ff 00 95 06 b1 02 85 17 09 00 95 0c b1 02 85 19 09 00 95 01 b1 02 85 0a 09 00 75 08 95 01 15 10 26 ff 00 b1 02 85 1e 09 00 95 10 b1 02 c0 06 00 ff 09 00 a1 01 85 09 05 0d 09 20 a1 00 09 00 15 00 26 ff 00 75 08 95 10 81 02 c0 09 00 95 03 b1 12 c0 06 00 ff 09 02 a1 01 85 07 09 00 96 09 01 b1 02 85 08 09 00 95 03 81 02 09 00 b1 02 85 0e 09 00 96 0a 01 b1 02 c0 05 0d 09 02 a1 01 85 1a 09 20 a1 00 09 42 09 44 09 45 09 3c 09 5a 09 32 15 00 25 01 75 01 95 06 81 02 09 38 25 03 75 02 95 01 81 02 05 01 09 30 26 88 3e 46 88 3e 65 11 55 0d 75 10 95 01 81 02 09 31 26 60 53 46 60 53 81 02 05 0d 09 30 26 ff 0f 46 b0 0f 66 11 e1 55 02 81 02 06 00 ff 09 04 75 08 26 ff 00 46 ff 00 65 11 55 0e 81 02 05 0d 09 3d 75 10 16 d8 dc 26 28 23 36 d8 dc 46 28 23 65 14 81 02 09 3e 81 02 05 01 09 32 16 01 ff 25 00 36 01 ff 45 00 65 11 81 02 05 0d 09 56 15 00 27 ff ff 00 00 35 00 47 ff ff 00 00 66 01 10 55 0c 81 02 45 00 65 00 55 00 c0 c0 06 00 ff 09 00 a1 01 85 1b 05 0d 09 20 a1 00 09 00 26 ff 00 75 08 95 10 81 02 c0 c0",
+            input_info=(BusType.USB, 0x2D1F, 0x014B),
+        )
diff --git a/tools/testing/selftests/hid/tests/test_usb_crash.py b/tools/testing/selftests/hid/tests/test_usb_crash.py
new file mode 100644
index 000000000000..e98bff9197c7
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_usb_crash.py
@@ -0,0 +1,103 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2021 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2021 Red Hat, Inc.
+#
+
+# This is to ensure we don't crash when emulating USB devices
+
+from . import base
+import pytest
+import logging
+
+logger = logging.getLogger("hidtools.test.usb")
+
+
+class USBDev(base.UHIDTestDevice):
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x01,  # .Usage Page (Generic Desktop)        0
+        0x09, 0x02,  # .Usage (Mouse)                       2
+        0xa1, 0x01,  # .Collection (Application)            4
+        0x09, 0x02,  # ..Usage (Mouse)                      6
+        0xa1, 0x02,  # ..Collection (Logical)               8
+        0x09, 0x01,  # ...Usage (Pointer)                   10
+        0xa1, 0x00,  # ...Collection (Physical)             12
+        0x05, 0x09,  # ....Usage Page (Button)              14
+        0x19, 0x01,  # ....Usage Minimum (1)                16
+        0x29, 0x03,  # ....Usage Maximum (3)                18
+        0x15, 0x00,  # ....Logical Minimum (0)              20
+        0x25, 0x01,  # ....Logical Maximum (1)              22
+        0x75, 0x01,  # ....Report Size (1)                  24
+        0x95, 0x03,  # ....Report Count (3)                 26
+        0x81, 0x02,  # ....Input (Data,Var,Abs)             28
+        0x75, 0x05,  # ....Report Size (5)                  30
+        0x95, 0x01,  # ....Report Count (1)                 32
+        0x81, 0x03,  # ....Input (Cnst,Var,Abs)             34
+        0x05, 0x01,  # ....Usage Page (Generic Desktop)     36
+        0x09, 0x30,  # ....Usage (X)                        38
+        0x09, 0x31,  # ....Usage (Y)                        40
+        0x15, 0x81,  # ....Logical Minimum (-127)           42
+        0x25, 0x7f,  # ....Logical Maximum (127)            44
+        0x75, 0x08,  # ....Report Size (8)                  46
+        0x95, 0x02,  # ....Report Count (2)                 48
+        0x81, 0x06,  # ....Input (Data,Var,Rel)             50
+        0xc0,        # ...End Collection                    52
+        0xc0,        # ..End Collection                     53
+        0xc0,        # .End Collection                      54
+    ]
+    # fmt: on
+
+    def __init__(self, name=None, input_info=None):
+        super().__init__(
+            name, "Mouse", input_info=input_info, rdesc=USBDev.report_descriptor
+        )
+
+    # skip witing for udev events, it's likely that the report
+    # descriptor is wrong
+    def is_ready(self):
+        return True
+
+    # we don't have an evdev node here, so paper over
+    # the checks
+    def get_evdev(self, application=None):
+        return "OK"
+
+
+class TestUSBDevice(base.BaseTestCase.TestUhid):
+    """
+    Test class to test if an emulated USB device crashes
+    the kernel.
+    """
+
+    # conftest.py is generating the following fixture:
+    #
+    # @pytest.fixture(params=[('modulename', 1, 2)])
+    # def usbVidPid(self, request):
+    #     return request.param
+
+    @pytest.fixture()
+    def new_uhdev(self, usbVidPid, request):
+        self.module, self.vid, self.pid = usbVidPid
+        self._load_kernel_module(None, self.module)
+        return USBDev(input_info=(3, self.vid, self.pid))
+
+    def test_creation(self):
+        """
+        inject the USB dev through uhid and immediately see if there is a crash:
+
+        uhid can create a USB device with the BUS_USB bus, and some
+        drivers assume that they can then access USB related structures
+        when they are actually provided a uhid device. This leads to
+        a crash because those access result in a segmentation fault.
+
+        The kernel should not crash on any (random) user space correct
+        use of its API. So run through all available modules and declared
+        devices to see if we can generate a uhid device without a crash.
+
+        The test is empty as the fixture `check_taint` is doing the job (and
+        honestly, when the kernel crashes, the whole machine freezes).
+        """
+        assert True
diff --git a/tools/testing/selftests/hid/tests/test_wacom_generic.py b/tools/testing/selftests/hid/tests/test_wacom_generic.py
new file mode 100644
index 000000000000..2d6d04f0ff80
--- /dev/null
+++ b/tools/testing/selftests/hid/tests/test_wacom_generic.py
@@ -0,0 +1,1407 @@
+#!/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
+# Copyright (c) 2017 Red Hat, Inc.
+# Copyright (c) 2020 Wacom Technology Corp.
+#
+# Authors:
+#     Jason Gerecke <jason.gerecke@wacom.com>
+
+"""
+Tests for the Wacom driver generic codepath.
+
+This module tests the function of the Wacom driver's generic codepath.
+The generic codepath is used by devices which are not explicitly listed
+in the driver's device table. It uses the device's HID descriptor to
+decode reports sent by the device.
+"""
+
+from .descriptors_wacom import (
+    wacom_pth660_v145,
+    wacom_pth660_v150,
+    wacom_pth860_v145,
+    wacom_pth860_v150,
+    wacom_pth460_v105,
+)
+
+import attr
+from collections import namedtuple
+from enum import Enum
+from hidtools.hut import HUT
+from hidtools.hid import HidUnit
+from . import base
+from . import test_multitouch
+import libevdev
+import pytest
+
+import logging
+
+logger = logging.getLogger("hidtools.test.wacom")
+
+KERNEL_MODULE = base.KernelModule("wacom", "wacom")
+
+
+class ProximityState(Enum):
+    """
+    Enumeration of allowed proximity states.
+    """
+
+    # Tool is not able to be sensed by the device
+    OUT = 0
+
+    # Tool is close enough to be sensed, but some data may be invalid
+    # or inaccurate
+    IN_PROXIMITY = 1
+
+    # Tool is close enough to be sensed with high accuracy. All data
+    # valid.
+    IN_RANGE = 2
+
+    def fill(self, reportdata):
+        """Fill a report with approrpiate HID properties/values."""
+        reportdata.inrange = self in [ProximityState.IN_RANGE]
+        reportdata.wacomsense = self in [
+            ProximityState.IN_PROXIMITY,
+            ProximityState.IN_RANGE,
+        ]
+
+
+class ReportData:
+    """
+    Placeholder for HID report values.
+    """
+
+    pass
+
+
+@attr.s
+class Buttons:
+    """
+    Stylus button state.
+
+    Describes the state of each of the buttons / "side switches" that
+    may be present on a stylus. Buttons set to 'None' indicate the
+    state is "unchanged" since the previous event.
+    """
+
+    primary = attr.ib(default=None)
+    secondary = attr.ib(default=None)
+    tertiary = attr.ib(default=None)
+
+    @staticmethod
+    def clear():
+        """Button object with all states cleared."""
+        return Buttons(False, False, False)
+
+    def fill(self, reportdata):
+        """Fill a report with approrpiate HID properties/values."""
+        reportdata.barrelswitch = int(self.primary or 0)
+        reportdata.secondarybarrelswitch = int(self.secondary or 0)
+        reportdata.b3 = int(self.tertiary or 0)
+
+
+@attr.s
+class ToolID:
+    """
+    Stylus tool identifiers.
+
+    Contains values used to identify a specific stylus, e.g. its serial
+    number and tool-type identifier. Values of ``0`` may sometimes be
+    used for the out-of-range condition.
+    """
+
+    serial = attr.ib()
+    tooltype = attr.ib()
+
+    @staticmethod
+    def clear():
+        """ToolID object with all fields cleared."""
+        return ToolID(0, 0)
+
+    def fill(self, reportdata):
+        """Fill a report with approrpiate HID properties/values."""
+        reportdata.transducerserialnumber = self.serial & 0xFFFFFFFF
+        reportdata.serialhi = (self.serial >> 32) & 0xFFFFFFFF
+        reportdata.tooltype = self.tooltype
+
+
+@attr.s
+class PhysRange:
+    """
+    Range of HID physical values, with units.
+    """
+
+    unit = attr.ib()
+    min_size = attr.ib()
+    max_size = attr.ib()
+
+    CENTIMETER = HidUnit.from_string("SILinear: cm")
+    DEGREE = HidUnit.from_string("EnglishRotation: deg")
+
+    def contains(self, field):
+        """
+        Check if the physical size of the provided field is in range.
+
+        Compare the physical size described by the provided HID field
+        against the range of sizes described by this object. This is
+        an exclusive range comparison (e.g. 0 cm is not within the
+        range 0 cm - 5 cm) and exact unit comparison (e.g. 1 inch is
+        not within the range 0 cm - 5 cm).
+        """
+        phys_size = (field.physical_max - field.physical_min) * 10 ** (field.unit_exp)
+        return (
+            field.unit == self.unit.value
+            and phys_size > self.min_size
+            and phys_size < self.max_size
+        )
+
+
+class BaseTablet(base.UHIDTestDevice):
+    """
+    Skeleton object for all kinds of tablet devices.
+    """
+
+    def __init__(self, rdesc, name=None, info=None):
+        assert rdesc is not None
+        super().__init__(name, "Pen", input_info=info, rdesc=rdesc)
+        self.buttons = Buttons.clear()
+        self.toolid = ToolID.clear()
+        self.proximity = ProximityState.OUT
+        self.offset = 0
+        self.ring = -1
+        self.ek0 = False
+
+    def match_evdev_rule(self, application, evdev):
+        """
+        Filter out evdev nodes based on the requested application.
+
+        The Wacom driver may create several device nodes for each USB
+        interface device. It is crucial that we run tests with the
+        expected device node or things will obviously go off the rails.
+        Use the Wacom driver's usual naming conventions to apply a
+        sensible default filter.
+        """
+        if application in ["Pen", "Pad"]:
+            return evdev.name.endswith(application)
+        else:
+            return True
+
+    def create_report(
+        self, x, y, pressure, buttons=None, toolid=None, proximity=None, reportID=None
+    ):
+        """
+        Return an input report for this device.
+
+        :param x: absolute x
+        :param y: absolute y
+        :param pressure: pressure
+        :param buttons: stylus button state. Use ``None`` for unchanged.
+        :param toolid: tool identifiers. Use ``None`` for unchanged.
+        :param proximity: a ProximityState indicating the sensor's ability
+             to detect and report attributes of this tool. Use ``None``
+             for unchanged.
+        :param reportID: the numeric report ID for this report, if needed
+        """
+        if buttons is not None:
+            self.buttons = buttons
+        buttons = self.buttons
+
+        if toolid is not None:
+            self.toolid = toolid
+        toolid = self.toolid
+
+        if proximity is not None:
+            self.proximity = proximity
+        proximity = self.proximity
+
+        reportID = reportID or self.default_reportID
+
+        report = ReportData()
+        report.x = x
+        report.y = y
+        report.tippressure = pressure
+        report.tipswitch = pressure > 0
+        buttons.fill(report)
+        proximity.fill(report)
+        toolid.fill(report)
+
+        return super().create_report(report, reportID=reportID)
+
+    def create_report_heartbeat(self, reportID):
+        """
+        Return a heartbeat input report for this device.
+
+        Heartbeat reports generally contain battery status information,
+        among other things.
+        """
+        report = ReportData()
+        report.wacombatterycharging = 1
+        return super().create_report(report, reportID=reportID)
+
+    def create_report_pad(self, reportID, ring, ek0):
+        report = ReportData()
+
+        if ring is not None:
+            self.ring = ring
+        ring = self.ring
+
+        if ek0 is not None:
+            self.ek0 = ek0
+        ek0 = self.ek0
+
+        if ring >= 0:
+            report.wacomtouchring = ring
+            report.wacomtouchringstatus = 1
+        else:
+            report.wacomtouchring = 0x7F
+            report.wacomtouchringstatus = 0
+
+        report.wacomexpresskey00 = ek0
+        return super().create_report(report, reportID=reportID)
+
+    def event(self, x, y, pressure, buttons=None, toolid=None, proximity=None):
+        """
+        Send an input event on the default report ID.
+
+        :param x: absolute x
+        :param y: absolute y
+        :param buttons: stylus button state. Use ``None`` for unchanged.
+        :param toolid: tool identifiers. Use ``None`` for unchanged.
+        :param proximity: a ProximityState indicating the sensor's ability
+             to detect and report attributes of this tool. Use ``None``
+             for unchanged.
+        """
+        r = self.create_report(x, y, pressure, buttons, toolid, proximity)
+        self.call_input_event(r)
+        return [r]
+
+    def event_heartbeat(self, reportID):
+        """
+        Send a heartbeat event on the requested report ID.
+        """
+        r = self.create_report_heartbeat(reportID)
+        self.call_input_event(r)
+        return [r]
+
+    def event_pad(self, reportID, ring=None, ek0=None):
+        """
+        Send a pad event on the requested report ID.
+        """
+        r = self.create_report_pad(reportID, ring, ek0)
+        self.call_input_event(r)
+        return [r]
+
+    def get_report(self, req, rnum, rtype):
+        if rtype != self.UHID_FEATURE_REPORT:
+            return (1, [])
+
+        rdesc = None
+        for v in self.parsed_rdesc.feature_reports.values():
+            if v.report_ID == rnum:
+                rdesc = v
+
+        if rdesc is None:
+            return (1, [])
+
+        result = (1, [])
+        result = self.create_report_offset(rdesc) or result
+        return result
+
+    def create_report_offset(self, rdesc):
+        require = [
+            "Wacom Offset Left",
+            "Wacom Offset Top",
+            "Wacom Offset Right",
+            "Wacom Offset Bottom",
+        ]
+        if not set(require).issubset(set([f.usage_name for f in rdesc])):
+            return None
+
+        report = ReportData()
+        report.wacomoffsetleft = self.offset
+        report.wacomoffsettop = self.offset
+        report.wacomoffsetright = self.offset
+        report.wacomoffsetbottom = self.offset
+        r = rdesc.create_report([report], None)
+        return (0, r)
+
+
+class OpaqueTablet(BaseTablet):
+    """
+    Bare-bones opaque tablet with a minimum of features.
+
+    A tablet stripped down to its absolute core. It is capable of
+    reporting X/Y position and if the pen is in contact. No pressure,
+    no barrel switches, no eraser. Notably it *does* report an "In
+    Range" flag, but this is only because the Wacom driver expects
+    one to function properly. The device uses only standard HID usages,
+    not any of Wacom's vendor-defined pages.
+    """
+
+    # fmt: off
+    report_descriptor = [
+        0x05, 0x0D,                     # . Usage Page (Digitizer),
+        0x09, 0x01,                     # . Usage (Digitizer),
+        0xA1, 0x01,                     # . Collection (Application),
+        0x85, 0x01,                     # .     Report ID (1),
+        0x09, 0x20,                     # .     Usage (Stylus),
+        0xA1, 0x00,                     # .     Collection (Physical),
+        0x09, 0x42,                     # .         Usage (Tip Switch),
+        0x09, 0x32,                     # .         Usage (In Range),
+        0x15, 0x00,                     # .         Logical Minimum (0),
+        0x25, 0x01,                     # .         Logical Maximum (1),
+        0x75, 0x01,                     # .         Report Size (1),
+        0x95, 0x02,                     # .         Report Count (2),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x95, 0x06,                     # .         Report Count (6),
+        0x81, 0x03,                     # .         Input (Constant, Variable),
+        0x05, 0x01,                     # .         Usage Page (Desktop),
+        0x09, 0x30,                     # .         Usage (X),
+        0x27, 0x80, 0x3E, 0x00, 0x00,   # .         Logical Maximum (16000),
+        0x47, 0x80, 0x3E, 0x00, 0x00,   # .         Physical Maximum (16000),
+        0x65, 0x11,                     # .         Unit (Centimeter),
+        0x55, 0x0D,                     # .         Unit Exponent (13),
+        0x75, 0x10,                     # .         Report Size (16),
+        0x95, 0x01,                     # .         Report Count (1),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x09, 0x31,                     # .         Usage (Y),
+        0x27, 0x28, 0x23, 0x00, 0x00,   # .         Logical Maximum (9000),
+        0x47, 0x28, 0x23, 0x00, 0x00,   # .         Physical Maximum (9000),
+        0x81, 0x02,                     # .         Input (Variable),
+        0xC0,                           # .     End Collection,
+        0xC0,                           # . End Collection,
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, info=(0x3, 0x056A, 0x9999)):
+        super().__init__(rdesc, name, info)
+        self.default_reportID = 1
+
+
+class OpaqueCTLTablet(BaseTablet):
+    """
+    Opaque tablet similar to something in the CTL product line.
+
+    A pen-only tablet with most basic features you would expect from
+    an actual device. Position, eraser, pressure, barrel buttons.
+    Uses the Wacom vendor-defined usage page.
+    """
+
+    # fmt: off
+    report_descriptor = [
+        0x06, 0x0D, 0xFF,               # . Usage Page (Vnd Wacom Emr),
+        0x09, 0x01,                     # . Usage (Digitizer),
+        0xA1, 0x01,                     # . Collection (Application),
+        0x85, 0x10,                     # .     Report ID (16),
+        0x09, 0x20,                     # .     Usage (Stylus),
+        0x35, 0x00,                     # .     Physical Minimum (0),
+        0x45, 0x00,                     # .     Physical Maximum (0),
+        0x15, 0x00,                     # .     Logical Minimum (0),
+        0x25, 0x01,                     # .     Logical Maximum (1),
+        0xA1, 0x00,                     # .     Collection (Physical),
+        0x09, 0x42,                     # .         Usage (Tip Switch),
+        0x09, 0x44,                     # .         Usage (Barrel Switch),
+        0x09, 0x5A,                     # .         Usage (Secondary Barrel Switch),
+        0x09, 0x45,                     # .         Usage (Eraser),
+        0x09, 0x3C,                     # .         Usage (Invert),
+        0x09, 0x32,                     # .         Usage (In Range),
+        0x09, 0x36,                     # .         Usage (In Proximity),
+        0x25, 0x01,                     # .         Logical Maximum (1),
+        0x75, 0x01,                     # .         Report Size (1),
+        0x95, 0x07,                     # .         Report Count (7),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x95, 0x01,                     # .         Report Count (1),
+        0x81, 0x03,                     # .         Input (Constant, Variable),
+        0x0A, 0x30, 0x01,               # .         Usage (X),
+        0x65, 0x11,                     # .         Unit (Centimeter),
+        0x55, 0x0D,                     # .         Unit Exponent (13),
+        0x47, 0x80, 0x3E, 0x00, 0x00,   # .         Physical Maximum (16000),
+        0x27, 0x80, 0x3E, 0x00, 0x00,   # .         Logical Maximum (16000),
+        0x75, 0x18,                     # .         Report Size (24),
+        0x95, 0x01,                     # .         Report Count (1),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x0A, 0x31, 0x01,               # .         Usage (Y),
+        0x47, 0x28, 0x23, 0x00, 0x00,   # .         Physical Maximum (9000),
+        0x27, 0x28, 0x23, 0x00, 0x00,   # .         Logical Maximum (9000),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x09, 0x30,                     # .         Usage (Tip Pressure),
+        0x55, 0x00,                     # .         Unit Exponent (0),
+        0x65, 0x00,                     # .         Unit,
+        0x47, 0x00, 0x00, 0x00, 0x00,   # .         Physical Maximum (0),
+        0x26, 0xFF, 0x0F,               # .         Logical Maximum (4095),
+        0x75, 0x10,                     # .         Report Size (16),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x75, 0x08,                     # .         Report Size (8),
+        0x95, 0x06,                     # .         Report Count (6),
+        0x81, 0x03,                     # .         Input (Constant, Variable),
+        0x0A, 0x32, 0x01,               # .         Usage (Z),
+        0x25, 0x3F,                     # .         Logical Maximum (63),
+        0x75, 0x08,                     # .         Report Size (8),
+        0x95, 0x01,                     # .         Report Count (1),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x09, 0x5B,                     # .         Usage (Transducer Serial Number),
+        0x09, 0x5C,                     # .         Usage (Transducer Serial Number Hi),
+        0x17, 0x00, 0x00, 0x00, 0x80,   # .         Logical Minimum (-2147483648),
+        0x27, 0xFF, 0xFF, 0xFF, 0x7F,   # .         Logical Maximum (2147483647),
+        0x75, 0x20,                     # .         Report Size (32),
+        0x95, 0x02,                     # .         Report Count (2),
+        0x81, 0x02,                     # .         Input (Variable),
+        0x09, 0x77,                     # .         Usage (Tool Type),
+        0x15, 0x00,                     # .         Logical Minimum (0),
+        0x26, 0xFF, 0x0F,               # .         Logical Maximum (4095),
+        0x75, 0x10,                     # .         Report Size (16),
+        0x95, 0x01,                     # .         Report Count (1),
+        0x81, 0x02,                     # .         Input (Variable),
+        0xC0,                           # .     End Collection,
+        0xC0                            # . End Collection
+    ]
+    # fmt: on
+
+    def __init__(self, rdesc=report_descriptor, name=None, info=(0x3, 0x056A, 0x9999)):
+        super().__init__(rdesc, name, info)
+        self.default_reportID = 16
+
+
+class PTHX60_Pen(BaseTablet):
+    """
+    Pen interface of a PTH-660 / PTH-860 / PTH-460 tablet.
+
+    This generation of devices are nearly identical to each other, though
+    the PTH-460 uses a slightly different descriptor construction (splits
+    the pad among several physical collections)
+    """
+
+    def __init__(self, rdesc=None, name=None, info=None):
+        super().__init__(rdesc, name, info)
+        self.default_reportID = 16
+
+
+class BaseTest:
+    class TestTablet(base.BaseTestCase.TestUhid):
+        kernel_modules = [KERNEL_MODULE]
+
+        def sync_and_assert_events(
+            self, report, expected_events, auto_syn=True, strict=False
+        ):
+            """
+            Assert we see the expected events in response to a report.
+            """
+            uhdev = self.uhdev
+            syn_event = self.syn_event
+            if auto_syn:
+                expected_events.append(syn_event)
+            actual_events = uhdev.next_sync_events()
+            self.debug_reports(report, uhdev, actual_events)
+            if strict:
+                self.assertInputEvents(expected_events, actual_events)
+            else:
+                self.assertInputEventsIn(expected_events, actual_events)
+
+        def get_usages(self, uhdev):
+            def get_report_usages(report):
+                application = report.application
+                for field in report.fields:
+                    if field.usages is not None:
+                        for usage in field.usages:
+                            yield (field, usage, application)
+                    else:
+                        yield (field, field.usage, application)
+
+            desc = uhdev.parsed_rdesc
+            reports = [
+                *desc.input_reports.values(),
+                *desc.feature_reports.values(),
+                *desc.output_reports.values(),
+            ]
+            for report in reports:
+                for usage in get_report_usages(report):
+                    yield usage
+
+        def assertName(self, uhdev, type):
+            """
+            Assert that the name is as we expect.
+
+            The Wacom driver applies a number of decorations to the name
+            provided by the hardware. We cannot rely on the definition of
+            this assertion from the base class to work properly.
+            """
+            evdev = uhdev.get_evdev()
+            expected_name = uhdev.name + type
+            if "wacom" not in expected_name.lower():
+                expected_name = "Wacom " + expected_name
+            assert evdev.name == expected_name
+
+        def test_descriptor_physicals(self):
+            """
+            Verify that all HID usages which should have a physical range
+            actually do, and those which shouldn't don't. Also verify that
+            the associated unit is correct and within a sensible range.
+            """
+
+            def usage_id(page_name, usage_name):
+                page = HUT.usage_page_from_name(page_name)
+                return (page.page_id << 16) | page[usage_name].usage
+
+            required = {
+                usage_id("Generic Desktop", "X"): PhysRange(
+                    PhysRange.CENTIMETER, 5, 150
+                ),
+                usage_id("Generic Desktop", "Y"): PhysRange(
+                    PhysRange.CENTIMETER, 5, 150
+                ),
+                usage_id("Digitizers", "Width"): PhysRange(
+                    PhysRange.CENTIMETER, 5, 150
+                ),
+                usage_id("Digitizers", "Height"): PhysRange(
+                    PhysRange.CENTIMETER, 5, 150
+                ),
+                usage_id("Digitizers", "X Tilt"): PhysRange(PhysRange.DEGREE, 90, 180),
+                usage_id("Digitizers", "Y Tilt"): PhysRange(PhysRange.DEGREE, 90, 180),
+                usage_id("Digitizers", "Twist"): PhysRange(PhysRange.DEGREE, 358, 360),
+                usage_id("Wacom", "X Tilt"): PhysRange(PhysRange.DEGREE, 90, 180),
+                usage_id("Wacom", "Y Tilt"): PhysRange(PhysRange.DEGREE, 90, 180),
+                usage_id("Wacom", "Twist"): PhysRange(PhysRange.DEGREE, 358, 360),
+                usage_id("Wacom", "X"): PhysRange(PhysRange.CENTIMETER, 5, 150),
+                usage_id("Wacom", "Y"): PhysRange(PhysRange.CENTIMETER, 5, 150),
+                usage_id("Wacom", "Wacom TouchRing"): PhysRange(
+                    PhysRange.DEGREE, 358, 360
+                ),
+                usage_id("Wacom", "Wacom Offset Left"): PhysRange(
+                    PhysRange.CENTIMETER, 0, 0.5
+                ),
+                usage_id("Wacom", "Wacom Offset Top"): PhysRange(
+                    PhysRange.CENTIMETER, 0, 0.5
+                ),
+                usage_id("Wacom", "Wacom Offset Right"): PhysRange(
+                    PhysRange.CENTIMETER, 0, 0.5
+                ),
+                usage_id("Wacom", "Wacom Offset Bottom"): PhysRange(
+                    PhysRange.CENTIMETER, 0, 0.5
+                ),
+            }
+            for field, usage, application in self.get_usages(self.uhdev):
+                if application == usage_id("Generic Desktop", "Mouse"):
+                    # Ignore the vestigial Mouse collection which exists
+                    # on Wacom tablets only for backwards compatibility.
+                    continue
+
+                expect_physical = usage in required
+
+                phys_set = field.physical_min != 0 or field.physical_max != 0
+                assert phys_set == expect_physical
+
+                unit_set = field.unit != 0
+                assert unit_set == expect_physical
+
+                if unit_set:
+                    assert required[usage].contains(field)
+
+        def test_prop_direct(self):
+            """
+            Todo: Verify that INPUT_PROP_DIRECT is set on display devices.
+            """
+            pass
+
+        def test_prop_pointer(self):
+            """
+            Todo: Verify that INPUT_PROP_POINTER is set on opaque devices.
+            """
+            pass
+
+
+class PenTabletTest(BaseTest.TestTablet):
+    def assertName(self, uhdev):
+        super().assertName(uhdev, " Pen")
+
+
+class TouchTabletTest(BaseTest.TestTablet):
+    def assertName(self, uhdev):
+        super().assertName(uhdev, " Finger")
+
+
+class TestOpaqueTablet(PenTabletTest):
+    def create_device(self):
+        return OpaqueTablet()
+
+    def test_sanity(self):
+        """
+        Bring a pen into contact with the tablet, then remove it.
+
+        Ensure that we get the basic tool/touch/motion events that should
+        be sent by the driver.
+        """
+        uhdev = self.uhdev
+
+        self.sync_and_assert_events(
+            uhdev.event(
+                100,
+                200,
+                pressure=300,
+                buttons=Buttons.clear(),
+                toolid=ToolID(serial=1, tooltype=1),
+                proximity=ProximityState.IN_RANGE,
+            ),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 1),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_X, 100),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_Y, 200),
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(110, 220, pressure=0),
+            [
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_X, 110),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_Y, 220),
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(
+                120,
+                230,
+                pressure=0,
+                toolid=ToolID.clear(),
+                proximity=ProximityState.OUT,
+            ),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 0),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(130, 240, pressure=0), [], auto_syn=False, strict=True
+        )
+
+
+class TestOpaqueCTLTablet(TestOpaqueTablet):
+    def create_device(self):
+        return OpaqueCTLTablet()
+
+    def test_buttons(self):
+        """
+        Test that the barrel buttons (side switches) work as expected.
+
+        Press and release each button individually to verify that we get
+        the expected events.
+        """
+        uhdev = self.uhdev
+
+        self.sync_and_assert_events(
+            uhdev.event(
+                100,
+                200,
+                pressure=0,
+                buttons=Buttons.clear(),
+                toolid=ToolID(serial=1, tooltype=1),
+                proximity=ProximityState.IN_RANGE,
+            ),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 1),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_X, 100),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_Y, 200),
+                libevdev.InputEvent(libevdev.EV_MSC.MSC_SERIAL, 1),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(100, 200, pressure=0, buttons=Buttons(primary=True)),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_STYLUS, 1),
+                libevdev.InputEvent(libevdev.EV_MSC.MSC_SERIAL, 1),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(100, 200, pressure=0, buttons=Buttons(primary=False)),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_STYLUS, 0),
+                libevdev.InputEvent(libevdev.EV_MSC.MSC_SERIAL, 1),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(100, 200, pressure=0, buttons=Buttons(secondary=True)),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_STYLUS2, 1),
+                libevdev.InputEvent(libevdev.EV_MSC.MSC_SERIAL, 1),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(100, 200, pressure=0, buttons=Buttons(secondary=False)),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_STYLUS2, 0),
+                libevdev.InputEvent(libevdev.EV_MSC.MSC_SERIAL, 1),
+            ],
+        )
+
+
+PTHX60_Devices = [
+    {"rdesc": wacom_pth660_v145, "info": (0x3, 0x056A, 0x0357)},
+    {"rdesc": wacom_pth660_v150, "info": (0x3, 0x056A, 0x0357)},
+    {"rdesc": wacom_pth860_v145, "info": (0x3, 0x056A, 0x0358)},
+    {"rdesc": wacom_pth860_v150, "info": (0x3, 0x056A, 0x0358)},
+    {"rdesc": wacom_pth460_v105, "info": (0x3, 0x056A, 0x0392)},
+]
+
+PTHX60_Names = [
+    "PTH-660/v145",
+    "PTH-660/v150",
+    "PTH-860/v145",
+    "PTH-860/v150",
+    "PTH-460/v105",
+]
+
+
+class TestPTHX60_Pen(TestOpaqueCTLTablet):
+    @pytest.fixture(
+        autouse=True, scope="class", params=PTHX60_Devices, ids=PTHX60_Names
+    )
+    def set_device_params(self, request):
+        request.cls.device_params = request.param
+
+    def create_device(self):
+        return PTHX60_Pen(**self.device_params)
+
+    @pytest.mark.xfail
+    def test_descriptor_physicals(self):
+        # XFAIL: Various documented errata
+        super().test_descriptor_physicals()
+
+    def test_heartbeat_spurious(self):
+        """
+        Test that the heartbeat report does not send spurious events.
+        """
+        uhdev = self.uhdev
+
+        self.sync_and_assert_events(
+            uhdev.event(
+                100,
+                200,
+                pressure=300,
+                buttons=Buttons.clear(),
+                toolid=ToolID(serial=1, tooltype=0x822),
+                proximity=ProximityState.IN_RANGE,
+            ),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOOL_PEN, 1),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_X, 100),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_Y, 200),
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1),
+            ],
+        )
+
+        # Exactly zero events: not even a SYN
+        self.sync_and_assert_events(
+            uhdev.event_heartbeat(19), [], auto_syn=False, strict=True
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event(110, 200, pressure=300),
+            [
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_X, 110),
+            ],
+        )
+
+    def test_empty_pad_sync(self):
+        self.empty_pad_sync(num=3, denom=16, reverse=True)
+
+    def empty_pad_sync(self, num, denom, reverse):
+        """
+        Test that multiple pad collections do not trigger empty syncs.
+        """
+
+        def offset_rotation(value):
+            """
+            Offset touchring rotation values by the same factor as the
+            Linux kernel. Tablets historically don't use the same origin
+            as HID, and it sometimes changes from tablet to tablet...
+            """
+            evdev = self.uhdev.get_evdev()
+            info = evdev.absinfo[libevdev.EV_ABS.ABS_WHEEL]
+            delta = info.maximum - info.minimum + 1
+            if reverse:
+                value = info.maximum - value
+            value += num * delta // denom
+            if value > info.maximum:
+                value -= delta
+            elif value < info.minimum:
+                value += delta
+            return value
+
+        uhdev = self.uhdev
+        uhdev.application = "Pad"
+        evdev = uhdev.get_evdev()
+
+        print(evdev.name)
+        self.sync_and_assert_events(
+            uhdev.event_pad(reportID=17, ring=0, ek0=1),
+            [
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_0, 1),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_WHEEL, offset_rotation(0)),
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_MISC, 15),
+            ],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event_pad(reportID=17, ring=1, ek0=1),
+            [libevdev.InputEvent(libevdev.EV_ABS.ABS_WHEEL, offset_rotation(1))],
+        )
+
+        self.sync_and_assert_events(
+            uhdev.event_pad(reportID=17, ring=2, ek0=0),
+            [
+                libevdev.InputEvent(libevdev.EV_ABS.ABS_WHEEL, offset_rotation(2)),
+                libevdev.InputEvent(libevdev.EV_KEY.BTN_0, 0),
+            ],
+        )
+
+
+class TestDTH2452Tablet(test_multitouch.BaseTest.TestMultitouch, TouchTabletTest):
+    ContactIds = namedtuple("ContactIds", "contact_id, tracking_id, slot_num")
+
+    def create_device(self):
+        return test_multitouch.Digitizer(
+            "DTH 2452",
+            rdesc="05 0d 09 04 a1 01 85 0c 95 01 75 08 15 00 26 ff 00 81 03 09 54 81 02 09 22 a1 02 05 0d 95 01 75 01 25 01 09 42 81 02 81 03 09 47 81 02 95 05 81 03 09 51 26 ff 00 75 10 95 01 81 02 35 00 65 11 55 0e 05 01 09 30 26 a0 44 46 96 14 81 42 09 31 26 9a 26 46 95 0b 81 42 05 0d 75 08 95 01 15 00 09 48 26 5f 00 46 7c 14 81 02 09 49 25 35 46 7d 0b 81 02 45 00 65 00 55 00 c0 05 0d 09 22 a1 02 05 0d 95 01 75 01 25 01 09 42 81 02 81 03 09 47 81 02 95 05 81 03 09 51 26 ff 00 75 10 95 01 81 02 35 00 65 11 55 0e 05 01 09 30 26 a0 44 46 96 14 81 42 09 31 26 9a 26 46 95 0b 81 42 05 0d 75 08 95 01 15 00 09 48 26 5f 00 46 7c 14 81 02 09 49 25 35 46 7d 0b 81 02 45 00 65 00 55 00 c0 05 0d 09 22 a1 02 05 0d 95 01 75 01 25 01 09 42 81 02 81 03 09 47 81 02 95 05 81 03 09 51 26 ff 00 75 10 95 01 81 02 35 00 65 11 55 0e 05 01 09 30 26 a0 44 46 96 14 81 42 09 31 26 9a 26 46 95 0b 81 42 05 0d 75 08 95 01 15 00 09 48 26 5f 00 46 7c 14 81 02 09 49 25 35 46 7d 0b 81 02 45 00 65 00 55 00 c0 05 0d 09 22 a1 02 05 0d 95 01 75 01 25 01 09 42 81 02 81 03 09 47 81 02 95 05 81 03 09 51 26 ff 00 75 10 95 01 81 02 35 00 65 11 55 0e 05 01 09 30 26 a0 44 46 96 14 81 42 09 31 26 9a 26 46 95 0b 81 42 05 0d 75 08 95 01 15 00 09 48 26 5f 00 46 7c 14 81 02 09 49 25 35 46 7d 0b 81 02 45 00 65 00 55 00 c0 05 0d 09 22 a1 02 05 0d 95 01 75 01 25 01 09 42 81 02 81 03 09 47 81 02 95 05 81 03 09 51 26 ff 00 75 10 95 01 81 02 35 00 65 11 55 0e 05 01 09 30 26 a0 44 46 96 14 81 42 09 31 26 9a 26 46 95 0b 81 42 05 0d 75 08 95 01 15 00 09 48 26 5f 00 46 7c 14 81 02 09 49 25 35 46 7d 0b 81 02 45 00 65 00 55 00 c0 05 0d 27 ff ff 00 00 75 10 95 01 09 56 81 02 75 08 95 0e 81 03 09 55 26 ff 00 75 08 b1 02 85 0a 06 00 ff 09 c5 96 00 01 b1 02 c0 06 00 ff 09 01 a1 01 09 01 85 13 15 00 26 ff 00 75 08 95 3f 81 02 06 00 ff 09 01 15 00 26 ff 00 75 08 95 3f 91 02 c0",
+            input_info=(0x3, 0x056A, 0x0383),
+        )
+
+    def make_contact(self, contact_id=0, t=0):
+        """
+        Make a single touch contact that can move over time.
+
+        Creates a touch object that has a well-known position in space that
+        does not overlap with other contacts. The value of `t` may be
+        incremented over time to move the point along a linear path.
+        """
+        x = 50 + 10 * contact_id + t * 11
+        y = 100 + 100 * contact_id + t * 11
+        return test_multitouch.Touch(contact_id, x, y)
+
+    def make_contacts(self, n, t=0):
+        """
+        Make multiple touch contacts that can move over time.
+
+        Returns a list of `n` touch objects that are positioned at well-known
+        locations. The value of `t` may be incremented over time to move the
+        points along a linear path.
+        """
+        return [self.make_contact(id, t) for id in range(0, n)]
+
+    def assert_contact(self, evdev, contact_ids, t=0):
+        """
+        Assert properties of a contact generated by make_contact.
+        """
+        contact_id = contact_ids.contact_id
+        tracking_id = contact_ids.tracking_id
+        slot_num = contact_ids.slot_num
+
+        x = 50 + 10 * contact_id + t * 11
+        y = 100 + 100 * contact_id + t * 11
+
+        # If the data isn't supposed to be stored in any slots, there is
+        # nothing we can check for in the evdev stream.
+        if slot_num is None:
+            assert tracking_id == -1
+            return
+
+        assert evdev.slots[slot_num][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == tracking_id
+        if tracking_id != -1:
+            assert evdev.slots[slot_num][libevdev.EV_ABS.ABS_MT_POSITION_X] == x
+            assert evdev.slots[slot_num][libevdev.EV_ABS.ABS_MT_POSITION_Y] == y
+
+    def assert_contacts(self, evdev, data, t=0):
+        """
+        Assert properties of a list of contacts generated by make_contacts.
+        """
+        for contact_ids in data:
+            self.assert_contact(evdev, contact_ids, t)
+
+    def test_contact_id_0(self):
+        """
+        Bring a finger in contact with the tablet, then hold it down and remove it.
+
+        Ensure that even with contact ID = 0 which is usually given as an invalid
+        touch event by most tablets with the exception of a few, that given the
+        confidence bit is set to 1 it should process it as a valid touch to cover
+        the few tablets using contact ID = 0 as a valid touch value.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        t0 = test_multitouch.Touch(0, 50, 100)
+        r = uhdev.event([t0])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        slot = self.get_slot(uhdev, t0, 0)
+
+        assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+        assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == 0
+        assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_X] == 50
+        assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_POSITION_Y] == 100
+
+        t0.tipswitch = False
+        if uhdev.quirks is None or "VALID_IS_INRANGE" not in uhdev.quirks:
+            t0.inrange = False
+        r = uhdev.event([t0])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+        assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 0) in events
+        assert evdev.slots[slot][libevdev.EV_ABS.ABS_MT_TRACKING_ID] == -1
+
+    def test_confidence_false(self):
+        """
+        Bring a finger in contact with the tablet with confidence set to false.
+
+        Ensure that the confidence bit being set to false should not result in a touch event.
+        """
+        uhdev = self.uhdev
+        _evdev = uhdev.get_evdev()
+
+        t0 = test_multitouch.Touch(1, 50, 100)
+        t0.confidence = False
+        r = uhdev.event([t0])
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        _slot = self.get_slot(uhdev, t0, 0)
+
+        assert not events
+
+    def test_confidence_multitouch(self):
+        """
+        Bring multiple fingers in contact with the tablet, some with the
+        confidence bit set, and some without.
+
+        Ensure that all confident touches are reported and that all non-
+        confident touches are ignored.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        touches = self.make_contacts(5)
+        touches[0].confidence = False
+        touches[2].confidence = False
+        touches[4].confidence = False
+
+        r = uhdev.event(touches)
+        events = uhdev.next_sync_events()
+        self.debug_reports(r, uhdev, events)
+
+        assert libevdev.InputEvent(libevdev.EV_KEY.BTN_TOUCH, 1) in events
+
+        self.assert_contacts(
+            evdev,
+            [
+                self.ContactIds(contact_id=0, tracking_id=-1, slot_num=None),
+                self.ContactIds(contact_id=1, tracking_id=0, slot_num=0),
+                self.ContactIds(contact_id=2, tracking_id=-1, slot_num=None),
+                self.ContactIds(contact_id=3, tracking_id=1, slot_num=1),
+                self.ContactIds(contact_id=4, tracking_id=-1, slot_num=None),
+            ],
+        )
+
+    def confidence_change_assert_playback(self, uhdev, evdev, timeline):
+        """
+        Assert proper behavior of contacts that move and change tipswitch /
+        confidence status over time.
+
+        Given a `timeline` list of touch states to iterate over, verify
+        that the contacts move and are reported as up/down as expected
+        by the state of the tipswitch and confidence bits.
+        """
+        t = 0
+
+        for state in timeline:
+            touches = self.make_contacts(len(state), t)
+
+            for item in zip(touches, state):
+                item[0].tipswitch = item[1][1]
+                item[0].confidence = item[1][2]
+
+            r = uhdev.event(touches)
+            events = uhdev.next_sync_events()
+            self.debug_reports(r, uhdev, events)
+
+            ids = [x[0] for x in state]
+            self.assert_contacts(evdev, ids, t)
+
+            t += 1
+
+    def test_confidence_loss_a(self):
+        """
+        Transition a confident contact to a non-confident contact by
+        first clearing the tipswitch.
+
+        Ensure that the driver reports the transitioned contact as
+        being removed and that other contacts continue to report
+        normally. This mode of confidence loss is used by the
+        DTH-2452.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        self.confidence_change_assert_playback(
+            uhdev,
+            evdev,
+            [
+                # t=0: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # Both fingers confidently in contact
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=1: Contact 0 == !Down + confident; Contact 1 == Down + confident
+                # First finger looses confidence and clears only the tipswitch flag
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=2: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=3: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+            ],
+        )
+
+    def test_confidence_loss_b(self):
+        """
+        Transition a confident contact to a non-confident contact by
+        cleraing both tipswitch and confidence bits simultaneously.
+
+        Ensure that the driver reports the transitioned contact as
+        being removed and that other contacts continue to report
+        normally. This mode of confidence loss is used by some
+        AES devices.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        self.confidence_change_assert_playback(
+            uhdev,
+            evdev,
+            [
+                # t=0: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # Both fingers confidently in contact
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=1: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger looses confidence and has both flags cleared simultaneously
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=2: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=3: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+            ],
+        )
+
+    def test_confidence_loss_c(self):
+        """
+        Transition a confident contact to a non-confident contact by
+        clearing only the confidence bit.
+
+        Ensure that the driver reports the transitioned contact as
+        being removed and that other contacts continue to report
+        normally.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        self.confidence_change_assert_playback(
+            uhdev,
+            evdev,
+            [
+                # t=0: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # Both fingers confidently in contact
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=1: Contact 0 == Down + !confident; Contact 1 == Down + confident
+                # First finger looses confidence and clears only the confidence flag
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        True,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=2: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=3: Contact 0 == !Down + !confident; Contact 1 == Down + confident
+                # First finger has lost confidence and has both flags cleared
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+            ],
+        )
+
+    def test_confidence_gain_a(self):
+        """
+        Transition a contact that was always non-confident to confident.
+
+        Ensure that the confident contact is reported normally.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        self.confidence_change_assert_playback(
+            uhdev,
+            evdev,
+            [
+                # t=0: Contact 0 == Down + !confident; Contact 1 == Down + confident
+                # Only second finger is confidently in contact
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=None),
+                        True,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=1: Contact 0 == Down + !confident; Contact 1 == Down + confident
+                # First finger gains confidence
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=None),
+                        True,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=2: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # First finger remains confident
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=3: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # First finger remains confident
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                ],
+            ],
+        )
+
+    def test_confidence_gain_b(self):
+        """
+        Transition a contact from non-confident to confident.
+
+        Ensure that the confident contact is reported normally.
+        """
+        uhdev = self.uhdev
+        evdev = uhdev.get_evdev()
+
+        self.confidence_change_assert_playback(
+            uhdev,
+            evdev,
+            [
+                # t=0: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # First and second finger confidently in contact
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=0, slot_num=0),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=1: Contact 0 == Down + !confident; Contact 1 == Down + confident
+                # Firtst finger looses confidence
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        True,
+                        False,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=2: Contact 0 == Down + confident; Contact 1 == Down + confident
+                # First finger gains confidence
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=2, slot_num=0),
+                        True,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+                # t=3: Contact 0 == !Down + confident; Contact 1 == Down + confident
+                # First finger goes up
+                [
+                    (
+                        self.ContactIds(contact_id=0, tracking_id=-1, slot_num=0),
+                        False,
+                        True,
+                    ),
+                    (
+                        self.ContactIds(contact_id=1, tracking_id=1, slot_num=1),
+                        True,
+                        True,
+                    ),
+                ],
+            ],
+        )
diff --git a/tools/testing/selftests/hid/vmtest.sh b/tools/testing/selftests/hid/vmtest.sh
new file mode 100755
index 000000000000..ecbd57f775a0
--- /dev/null
+++ b/tools/testing/selftests/hid/vmtest.sh
@@ -0,0 +1,474 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2025 Red Hat
+# Copyright (c) 2025 Meta Platforms, Inc. and affiliates
+#
+# Dependencies:
+#		* virtme-ng
+#		* busybox-static (used by virtme-ng)
+#		* qemu	(used by virtme-ng)
+
+readonly SCRIPT_DIR="$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
+readonly KERNEL_CHECKOUT=$(realpath "${SCRIPT_DIR}"/../../../../)
+
+source "${SCRIPT_DIR}"/../kselftest/ktap_helpers.sh
+
+readonly HID_BPF_TEST="${SCRIPT_DIR}"/hid_bpf
+readonly HIDRAW_TEST="${SCRIPT_DIR}"/hidraw
+readonly HID_BPF_PROGS="${KERNEL_CHECKOUT}/drivers/hid/bpf/progs"
+readonly SSH_GUEST_PORT=22
+readonly WAIT_PERIOD=3
+readonly WAIT_PERIOD_MAX=60
+readonly WAIT_TOTAL=$(( WAIT_PERIOD * WAIT_PERIOD_MAX ))
+readonly QEMU_PIDFILE=$(mktemp /tmp/qemu_hid_vmtest_XXXX.pid)
+
+readonly QEMU_OPTS="\
+	 --pidfile ${QEMU_PIDFILE} \
+"
+readonly KERNEL_CMDLINE=""
+readonly LOG=$(mktemp /tmp/hid_vmtest_XXXX.log)
+readonly TEST_NAMES=(vm_hid_bpf vm_hidraw vm_pytest)
+readonly TEST_DESCS=(
+	"Run hid_bpf tests in the VM."
+	"Run hidraw tests in the VM."
+	"Run the hid-tools test-suite in the VM."
+)
+
+VERBOSE=0
+SHELL_MODE=0
+BUILD_HOST=""
+BUILD_HOST_PODMAN_CONTAINER_NAME=""
+
+usage() {
+	local name
+	local desc
+	local i
+
+	echo
+	echo "$0 [OPTIONS] [TEST]... [-- tests-args]"
+	echo "If no TEST argument is given, all tests will be run."
+	echo
+	echo "Options"
+	echo "  -b: build the kernel from the current source tree and use it for guest VMs"
+	echo "  -H: hostname for remote build host (used with -b)"
+	echo "  -p: podman container name for remote build host (used with -b)"
+	echo "      Example: -H beefyserver -p vng"
+	echo "  -q: set the path to or name of qemu binary"
+	echo "  -s: start a shell in the VM instead of running tests"
+	echo "  -v: more verbose output (can be repeated multiple times)"
+	echo
+	echo "Available tests"
+
+	for ((i = 0; i < ${#TEST_NAMES[@]}; i++)); do
+		name=${TEST_NAMES[${i}]}
+		desc=${TEST_DESCS[${i}]}
+		printf "\t%-35s%-35s\n" "${name}" "${desc}"
+	done
+	echo
+
+	exit 1
+}
+
+die() {
+	echo "$*" >&2
+	exit "${KSFT_FAIL}"
+}
+
+vm_ssh() {
+	# vng --ssh-client keeps shouting "Warning: Permanently added 'virtme-ng%22'
+	# (ED25519) to the list of known hosts.",
+	# So replace the command with what's actually called and add the "-q" option
+	stdbuf -oL ssh -q \
+		       -F ${HOME}/.cache/virtme-ng/.ssh/virtme-ng-ssh.conf \
+		       -l root virtme-ng%${SSH_GUEST_PORT} \
+		       "$@"
+	return $?
+}
+
+cleanup() {
+	if [[ -s "${QEMU_PIDFILE}" ]]; then
+		pkill -SIGTERM -F "${QEMU_PIDFILE}" > /dev/null 2>&1
+	fi
+
+	# If failure occurred during or before qemu start up, then we need
+	# to clean this up ourselves.
+	if [[ -e "${QEMU_PIDFILE}" ]]; then
+		rm "${QEMU_PIDFILE}"
+	fi
+}
+
+check_args() {
+	local found
+
+	for arg in "$@"; do
+		found=0
+		for name in "${TEST_NAMES[@]}"; do
+			if [[ "${name}" = "${arg}" ]]; then
+				found=1
+				break
+			fi
+		done
+
+		if [[ "${found}" -eq 0 ]]; then
+			echo "${arg} is not an available test" >&2
+			usage
+		fi
+	done
+
+	for arg in "$@"; do
+		if ! command -v > /dev/null "test_${arg}"; then
+			echo "Test ${arg} not found" >&2
+			usage
+		fi
+	done
+}
+
+check_deps() {
+	for dep in vng ${QEMU} busybox pkill ssh pytest; do
+		if [[ ! -x $(command -v "${dep}") ]]; then
+			echo -e "skip:    dependency ${dep} not found!\n"
+			exit "${KSFT_SKIP}"
+		fi
+	done
+
+	if [[ ! -x $(command -v "${HID_BPF_TEST}") ]]; then
+		printf "skip:    %s not found!" "${HID_BPF_TEST}"
+		printf " Please build the kselftest hid_bpf target.\n"
+		exit "${KSFT_SKIP}"
+	fi
+
+	if [[ ! -x $(command -v "${HIDRAW_TEST}") ]]; then
+		printf "skip:    %s not found!" "${HIDRAW_TEST}"
+		printf " Please build the kselftest hidraw target.\n"
+		exit "${KSFT_SKIP}"
+	fi
+}
+
+check_vng() {
+	local tested_versions
+	local version
+	local ok
+
+	tested_versions=("1.36" "1.37")
+	version="$(vng --version)"
+
+	ok=0
+	for tv in "${tested_versions[@]}"; do
+		if [[ "${version}" == *"${tv}"* ]]; then
+			ok=1
+			break
+		fi
+	done
+
+	if [[ ! "${ok}" -eq 1 ]]; then
+		printf "warning: vng version '%s' has not been tested and may " "${version}" >&2
+		printf "not function properly.\n\tThe following versions have been tested: " >&2
+		echo "${tested_versions[@]}" >&2
+	fi
+}
+
+handle_build() {
+	if [[ ! "${BUILD}" -eq 1 ]]; then
+		return
+	fi
+
+	if [[ ! -d "${KERNEL_CHECKOUT}" ]]; then
+		echo "-b requires vmtest.sh called from the kernel source tree" >&2
+		exit 1
+	fi
+
+	pushd "${KERNEL_CHECKOUT}" &>/dev/null
+
+	if ! vng --kconfig --config "${SCRIPT_DIR}"/config; then
+		die "failed to generate .config for kernel source tree (${KERNEL_CHECKOUT})"
+	fi
+
+	local vng_args=("-v" "--config" "${SCRIPT_DIR}/config" "--build")
+
+	if [[ -n "${BUILD_HOST}" ]]; then
+		vng_args+=("--build-host" "${BUILD_HOST}")
+	fi
+
+	if [[ -n "${BUILD_HOST_PODMAN_CONTAINER_NAME}" ]]; then
+		vng_args+=("--build-host-exec-prefix" \
+			   "podman exec -ti ${BUILD_HOST_PODMAN_CONTAINER_NAME}")
+	fi
+
+	if ! vng "${vng_args[@]}"; then
+		die "failed to build kernel from source tree (${KERNEL_CHECKOUT})"
+	fi
+
+	if ! make -j$(nproc) -C "${HID_BPF_PROGS}"; then
+		die "failed to build HID bpf objects from source tree (${HID_BPF_PROGS})"
+	fi
+
+	if ! make -j$(nproc) -C "${SCRIPT_DIR}"; then
+		die "failed to build HID selftests from source tree (${SCRIPT_DIR})"
+	fi
+
+	popd &>/dev/null
+}
+
+vm_start() {
+	local logfile=/dev/null
+	local verbose_opt=""
+	local kernel_opt=""
+	local qemu
+
+	qemu=$(command -v "${QEMU}")
+
+	if [[ "${VERBOSE}" -eq 2 ]]; then
+		verbose_opt="--verbose"
+		logfile=/dev/stdout
+	fi
+
+	# If we are running from within the kernel source tree, use the kernel source tree
+	# as the kernel to boot, otherwise use the currently running kernel.
+	if [[ "$(realpath "$(pwd)")" == "${KERNEL_CHECKOUT}"* ]]; then
+		kernel_opt="${KERNEL_CHECKOUT}"
+	fi
+
+	vng \
+		--run \
+		${kernel_opt} \
+		${verbose_opt} \
+		--qemu-opts="${QEMU_OPTS}" \
+		--qemu="${qemu}" \
+		--user root \
+		--append "${KERNEL_CMDLINE}" \
+		--ssh "${SSH_GUEST_PORT}" \
+		--rw  &> ${logfile} &
+
+	local vng_pid=$!
+	local elapsed=0
+
+	while [[ ! -s "${QEMU_PIDFILE}" ]]; do
+		if ! kill -0 "${vng_pid}" 2>/dev/null; then
+			echo "vng process (PID ${vng_pid}) exited early, check logs for details" >&2
+			die "failed to boot VM"
+		fi
+
+		if [[ ${elapsed} -ge ${WAIT_TOTAL} ]]; then
+			echo "Timed out after ${WAIT_TOTAL} seconds waiting for VM to boot" >&2
+			die "failed to boot VM"
+		fi
+
+		sleep 1
+		elapsed=$((elapsed + 1))
+	done
+}
+
+vm_wait_for_ssh() {
+	local i
+
+	i=0
+	while true; do
+		if [[ ${i} -gt ${WAIT_PERIOD_MAX} ]]; then
+			die "Timed out waiting for guest ssh"
+		fi
+		if vm_ssh -- true; then
+			break
+		fi
+		i=$(( i + 1 ))
+		sleep ${WAIT_PERIOD}
+	done
+}
+
+vm_mount_bpffs() {
+	vm_ssh -- mount bpffs -t bpf /sys/fs/bpf
+}
+
+__log_stdin() {
+	stdbuf -oL awk '{ printf "%s:\t%s\n","'"${prefix}"'", $0; fflush() }'
+}
+
+__log_args() {
+	echo "$*" | awk '{ printf "%s:\t%s\n","'"${prefix}"'", $0 }'
+}
+
+log() {
+	local verbose="$1"
+	shift
+
+	local prefix="$1"
+
+	shift
+	local redirect=
+	if [[ ${verbose} -le 0 ]]; then
+		redirect=/dev/null
+	else
+		redirect=/dev/stdout
+	fi
+
+	if [[ "$#" -eq 0 ]]; then
+		__log_stdin | tee -a "${LOG}" > ${redirect}
+	else
+		__log_args "$@" | tee -a "${LOG}" > ${redirect}
+	fi
+}
+
+log_setup() {
+	log $((VERBOSE-1)) "setup" "$@"
+}
+
+log_host() {
+	local testname=$1
+
+	shift
+	log $((VERBOSE-1)) "test:${testname}:host" "$@"
+}
+
+log_guest() {
+	local testname=$1
+
+	shift
+	log ${VERBOSE} "# test:${testname}" "$@"
+}
+
+test_vm_hid_bpf() {
+	local testname="${FUNCNAME[0]#test_}"
+
+	vm_ssh -- "${HID_BPF_TEST}" \
+		2>&1 | log_guest "${testname}"
+
+	return ${PIPESTATUS[0]}
+}
+
+test_vm_hidraw() {
+	local testname="${FUNCNAME[0]#test_}"
+
+	vm_ssh -- "${HIDRAW_TEST}" \
+		2>&1 | log_guest "${testname}"
+
+	return ${PIPESTATUS[0]}
+}
+
+test_vm_pytest() {
+	local testname="${FUNCNAME[0]#test_}"
+
+	shift
+
+	vm_ssh -- pytest ${SCRIPT_DIR}/tests --color=yes "$@" \
+		2>&1 | log_guest "${testname}"
+
+	return ${PIPESTATUS[0]}
+}
+
+run_test() {
+	local vm_oops_cnt_before
+	local vm_warn_cnt_before
+	local vm_oops_cnt_after
+	local vm_warn_cnt_after
+	local name
+	local rc
+
+	vm_oops_cnt_before=$(vm_ssh -- dmesg | grep -c -i 'Oops')
+	vm_error_cnt_before=$(vm_ssh -- dmesg --level=err | wc -l)
+
+	name=$(echo "${1}" | awk '{ print $1 }')
+	eval test_"${name}" "$@"
+	rc=$?
+
+	vm_oops_cnt_after=$(vm_ssh -- dmesg | grep -i 'Oops' | wc -l)
+	if [[ ${vm_oops_cnt_after} -gt ${vm_oops_cnt_before} ]]; then
+		echo "FAIL: kernel oops detected on vm" | log_host "${name}"
+		rc=$KSFT_FAIL
+	fi
+
+	vm_error_cnt_after=$(vm_ssh -- dmesg --level=err | wc -l)
+	if [[ ${vm_error_cnt_after} -gt ${vm_error_cnt_before} ]]; then
+		echo "FAIL: kernel error detected on vm" | log_host "${name}"
+		vm_ssh -- dmesg --level=err | log_host "${name}"
+		rc=$KSFT_FAIL
+	fi
+
+	return "${rc}"
+}
+
+QEMU="qemu-system-$(uname -m)"
+
+while getopts :hvsbq:H:p: o
+do
+	case $o in
+	v) VERBOSE=$((VERBOSE+1));;
+	s) SHELL_MODE=1;;
+	b) BUILD=1;;
+	q) QEMU=$OPTARG;;
+	H) BUILD_HOST=$OPTARG;;
+	p) BUILD_HOST_PODMAN_CONTAINER_NAME=$OPTARG;;
+	h|*) usage;;
+	esac
+done
+shift $((OPTIND-1))
+
+trap cleanup EXIT
+
+PARAMS=""
+
+if [[ ${#} -eq 0 ]]; then
+	ARGS=("${TEST_NAMES[@]}")
+else
+	ARGS=()
+	COUNT=0
+	for arg in $@; do
+		COUNT=$((COUNT+1))
+		if [[ x"$arg" == x"--" ]]; then
+			break
+		fi
+		ARGS+=($arg)
+	done
+	shift $COUNT
+	PARAMS="$@"
+fi
+
+if [[ "${SHELL_MODE}" -eq 0 ]]; then
+	check_args "${ARGS[@]}"
+	echo "1..${#ARGS[@]}"
+fi
+check_deps
+check_vng
+handle_build
+
+log_setup "Booting up VM"
+vm_start
+vm_wait_for_ssh
+vm_mount_bpffs
+log_setup "VM booted up"
+
+if [[ "${SHELL_MODE}" -eq 1 ]]; then
+	log_setup "Starting interactive shell in VM"
+	echo "Starting shell in VM. Use 'exit' to quit and shutdown the VM."
+	CURRENT_DIR="$(pwd)"
+	vm_ssh -t -- "cd '${CURRENT_DIR}' && exec bash -l"
+	exit "$KSFT_PASS"
+fi
+
+cnt_pass=0
+cnt_fail=0
+cnt_skip=0
+cnt_total=0
+for arg in "${ARGS[@]}"; do
+	run_test "${arg}" "${PARAMS}"
+	rc=$?
+	if [[ ${rc} -eq $KSFT_PASS ]]; then
+		cnt_pass=$(( cnt_pass + 1 ))
+		echo "ok ${cnt_total} ${arg}"
+	elif [[ ${rc} -eq $KSFT_SKIP ]]; then
+		cnt_skip=$(( cnt_skip + 1 ))
+		echo "ok ${cnt_total} ${arg} # SKIP"
+	elif [[ ${rc} -eq $KSFT_FAIL ]]; then
+		cnt_fail=$(( cnt_fail + 1 ))
+		echo "not ok ${cnt_total} ${arg} # exit=$rc"
+	fi
+	cnt_total=$(( cnt_total + 1 ))
+done
+
+echo "SUMMARY: PASS=${cnt_pass} SKIP=${cnt_skip} FAIL=${cnt_fail}"
+echo "Log: ${LOG}"
+
+if [ $((cnt_pass + cnt_skip)) -eq ${cnt_total} ]; then
+	exit "$KSFT_PASS"
+else
+	exit "$KSFT_FAIL"
+fi
diff --git a/tools/testing/selftests/ia64/.gitignore b/tools/testing/selftests/ia64/.gitignore
new file mode 100644
index 000000000000..e962fb2a08d5
--- /dev/null
+++ b/tools/testing/selftests/ia64/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+aliasing-test
diff --git a/tools/testing/selftests/ia64/Makefile b/tools/testing/selftests/ia64/Makefile
new file mode 100644
index 000000000000..4bce1a84b3a1
--- /dev/null
+++ b/tools/testing/selftests/ia64/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_PROGS := aliasing-test
+
+all: $(TEST_PROGS)
+
+include ../lib.mk
+
+clean:
+	rm -fr $(TEST_PROGS)
diff --git a/tools/testing/selftests/ia64/aliasing-test.c b/tools/testing/selftests/ia64/aliasing-test.c
new file mode 100644
index 000000000000..1ad6896f10f7
--- /dev/null
+++ b/tools/testing/selftests/ia64/aliasing-test.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Exercise /dev/mem mmap cases that have been troublesome in the past
+ *
+ * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
+ *	Bjorn Helgaas <bjorn.helgaas@hp.com>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <linux/pci.h>
+
+int sum;
+
+static int map_mem(char *path, off_t offset, size_t length, int touch)
+{
+	int fd, rc;
+	void *addr;
+	int *c;
+
+	fd = open(path, O_RDWR);
+	if (fd == -1) {
+		perror(path);
+		return -1;
+	}
+
+	if (fnmatch("/proc/bus/pci/*", path, 0) == 0) {
+		rc = ioctl(fd, PCIIOC_MMAP_IS_MEM);
+		if (rc == -1)
+			perror("PCIIOC_MMAP_IS_MEM ioctl");
+	}
+
+	addr = mmap(NULL, length, PROT_READ|PROT_WRITE, MAP_SHARED, fd, offset);
+	if (addr == MAP_FAILED)
+		return 1;
+
+	if (touch) {
+		c = (int *) addr;
+		while (c < (int *) (addr + length))
+			sum += *c++;
+	}
+
+	rc = munmap(addr, length);
+	if (rc == -1) {
+		perror("munmap");
+		return -1;
+	}
+
+	close(fd);
+	return 0;
+}
+
+static int scan_tree(char *path, char *file, off_t offset, size_t length, int touch)
+{
+	struct dirent **namelist;
+	char *name, *path2;
+	int i, n, r, rc = 0, result = 0;
+	struct stat buf;
+
+	n = scandir(path, &namelist, 0, alphasort);
+	if (n < 0) {
+		perror("scandir");
+		return -1;
+	}
+
+	for (i = 0; i < n; i++) {
+		name = namelist[i]->d_name;
+
+		if (fnmatch(".", name, 0) == 0)
+			goto skip;
+		if (fnmatch("..", name, 0) == 0)
+			goto skip;
+
+		path2 = malloc(strlen(path) + strlen(name) + 3);
+		strcpy(path2, path);
+		strcat(path2, "/");
+		strcat(path2, name);
+
+		if (fnmatch(file, name, 0) == 0) {
+			rc = map_mem(path2, offset, length, touch);
+			if (rc == 0)
+				fprintf(stderr, "PASS: %s 0x%lx-0x%lx is %s\n", path2, offset, offset + length, touch ? "readable" : "mappable");
+			else if (rc > 0)
+				fprintf(stderr, "PASS: %s 0x%lx-0x%lx not mappable\n", path2, offset, offset + length);
+			else {
+				fprintf(stderr, "FAIL: %s 0x%lx-0x%lx not accessible\n", path2, offset, offset + length);
+				return rc;
+			}
+		} else {
+			r = lstat(path2, &buf);
+			if (r == 0 && S_ISDIR(buf.st_mode)) {
+				rc = scan_tree(path2, file, offset, length, touch);
+				if (rc < 0)
+					return rc;
+			}
+		}
+
+		result |= rc;
+		free(path2);
+
+skip:
+		free(namelist[i]);
+	}
+	free(namelist);
+	return result;
+}
+
+char buf[1024];
+
+static int read_rom(char *path)
+{
+	int fd, rc;
+	size_t size = 0;
+
+	fd = open(path, O_RDWR);
+	if (fd == -1) {
+		perror(path);
+		return -1;
+	}
+
+	rc = write(fd, "1", 2);
+	if (rc <= 0) {
+		close(fd);
+		perror("write");
+		return -1;
+	}
+
+	do {
+		rc = read(fd, buf, sizeof(buf));
+		if (rc > 0)
+			size += rc;
+	} while (rc > 0);
+
+	close(fd);
+	return size;
+}
+
+static int scan_rom(char *path, char *file)
+{
+	struct dirent **namelist;
+	char *name, *path2;
+	int i, n, r, rc = 0, result = 0;
+	struct stat buf;
+
+	n = scandir(path, &namelist, 0, alphasort);
+	if (n < 0) {
+		perror("scandir");
+		return -1;
+	}
+
+	for (i = 0; i < n; i++) {
+		name = namelist[i]->d_name;
+
+		if (fnmatch(".", name, 0) == 0)
+			goto skip;
+		if (fnmatch("..", name, 0) == 0)
+			goto skip;
+
+		path2 = malloc(strlen(path) + strlen(name) + 3);
+		strcpy(path2, path);
+		strcat(path2, "/");
+		strcat(path2, name);
+
+		if (fnmatch(file, name, 0) == 0) {
+			rc = read_rom(path2);
+
+			/*
+			 * It's OK if the ROM is unreadable.  Maybe there
+			 * is no ROM, or some other error occurred.  The
+			 * important thing is that no MCA happened.
+			 */
+			if (rc > 0)
+				fprintf(stderr, "PASS: %s read %d bytes\n", path2, rc);
+			else {
+				fprintf(stderr, "PASS: %s not readable\n", path2);
+				return rc;
+			}
+		} else {
+			r = lstat(path2, &buf);
+			if (r == 0 && S_ISDIR(buf.st_mode)) {
+				rc = scan_rom(path2, file);
+				if (rc < 0)
+					return rc;
+			}
+		}
+
+		result |= rc;
+		free(path2);
+
+skip:
+		free(namelist[i]);
+	}
+	free(namelist);
+	return result;
+}
+
+int main(void)
+{
+	int rc;
+
+	if (map_mem("/dev/mem", 0, 0xA0000, 1) == 0)
+		fprintf(stderr, "PASS: /dev/mem 0x0-0xa0000 is readable\n");
+	else
+		fprintf(stderr, "FAIL: /dev/mem 0x0-0xa0000 not accessible\n");
+
+	/*
+	 * It's not safe to blindly read the VGA frame buffer.  If you know
+	 * how to poke the card the right way, it should respond, but it's
+	 * not safe in general.  Many machines, e.g., Intel chipsets, cover
+	 * up a non-responding card by just returning -1, but others will
+	 * report the failure as a machine check.
+	 */
+	if (map_mem("/dev/mem", 0xA0000, 0x20000, 0) == 0)
+		fprintf(stderr, "PASS: /dev/mem 0xa0000-0xc0000 is mappable\n");
+	else
+		fprintf(stderr, "FAIL: /dev/mem 0xa0000-0xc0000 not accessible\n");
+
+	if (map_mem("/dev/mem", 0xC0000, 0x40000, 1) == 0)
+		fprintf(stderr, "PASS: /dev/mem 0xc0000-0x100000 is readable\n");
+	else
+		fprintf(stderr, "FAIL: /dev/mem 0xc0000-0x100000 not accessible\n");
+
+	/*
+	 * Often you can map all the individual pieces above (0-0xA0000,
+	 * 0xA0000-0xC0000, and 0xC0000-0x100000), but can't map the whole
+	 * thing at once.  This is because the individual pieces use different
+	 * attributes, and there's no single attribute supported over the
+	 * whole region.
+	 */
+	rc = map_mem("/dev/mem", 0, 1024*1024, 0);
+	if (rc == 0)
+		fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 is mappable\n");
+	else if (rc > 0)
+		fprintf(stderr, "PASS: /dev/mem 0x0-0x100000 not mappable\n");
+	else
+		fprintf(stderr, "FAIL: /dev/mem 0x0-0x100000 not accessible\n");
+
+	scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 0xA0000, 1);
+	scan_tree("/sys/class/pci_bus", "legacy_mem", 0xA0000, 0x20000, 0);
+	scan_tree("/sys/class/pci_bus", "legacy_mem", 0xC0000, 0x40000, 1);
+	scan_tree("/sys/class/pci_bus", "legacy_mem", 0, 1024*1024, 0);
+
+	scan_rom("/sys/devices", "rom");
+
+	scan_tree("/proc/bus/pci", "??.?", 0, 0xA0000, 1);
+	scan_tree("/proc/bus/pci", "??.?", 0xA0000, 0x20000, 0);
+	scan_tree("/proc/bus/pci", "??.?", 0xC0000, 0x40000, 1);
+	scan_tree("/proc/bus/pci", "??.?", 0, 1024*1024, 0);
+
+	return rc;
+}
diff --git a/tools/testing/selftests/intel_pstate/.gitignore b/tools/testing/selftests/intel_pstate/.gitignore
new file mode 100644
index 000000000000..862de222a3f3
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+aperf
+msr
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
new file mode 100644
index 000000000000..f45372cb00fe
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS := $(CFLAGS) -Wall
+LDLIBS += -lm
+
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+ARCH_PROCESSED := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq (x86,$(ARCH_PROCESSED))
+TEST_GEN_FILES := msr aperf
+endif
+
+TEST_PROGS := run.sh
+
+include ../lib.mk
+
+$(TEST_GEN_FILES): $(HEADERS)
diff --git a/tools/testing/selftests/intel_pstate/aperf.c b/tools/testing/selftests/intel_pstate/aperf.c
new file mode 100644
index 000000000000..953b63e5aa6a
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/aperf.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <math.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/timeb.h>
+#include <sched.h>
+#include <errno.h>
+#include <string.h>
+#include <time.h>
+#include "kselftest.h"
+
+#define MSEC_PER_SEC	1000L
+#define NSEC_PER_MSEC	1000000L
+
+void usage(char *name) {
+	printf ("Usage: %s cpunum\n", name);
+}
+
+int main(int argc, char **argv) {
+	unsigned int i, cpu, fd;
+	char msr_file_name[64];
+	long long tsc, old_tsc, new_tsc;
+	long long aperf, old_aperf, new_aperf;
+	long long mperf, old_mperf, new_mperf;
+	struct timespec before, after;
+	long long int start, finish, total;
+	cpu_set_t cpuset;
+
+	if (argc != 2) {
+		usage(argv[0]);
+		return 1;
+	}
+
+	errno = 0;
+	cpu = strtol(argv[1], (char **) NULL, 10);
+
+	if (errno) {
+		usage(argv[0]);
+		return 1;
+	}
+
+	sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
+	fd = open(msr_file_name, O_RDONLY);
+
+	if (fd == -1) {
+		printf("/dev/cpu/%d/msr: %s\n", cpu, strerror(errno));
+		return KSFT_SKIP;
+	}
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	if (sched_setaffinity(0, sizeof(cpu_set_t), &cpuset)) {
+		perror("Failed to set cpu affinity");
+		return 1;
+	}
+
+	if (clock_gettime(CLOCK_MONOTONIC, &before) < 0) {
+		perror("clock_gettime");
+		return 1;
+	}
+	pread(fd, &old_tsc,  sizeof(old_tsc), 0x10);
+	pread(fd, &old_aperf,  sizeof(old_mperf), 0xe7);
+	pread(fd, &old_mperf,  sizeof(old_aperf), 0xe8);
+
+	for (i=0; i<0x8fffffff; i++) {
+		sqrt(i);
+	}
+
+	if (clock_gettime(CLOCK_MONOTONIC, &after) < 0) {
+		perror("clock_gettime");
+		return 1;
+	}
+	pread(fd, &new_tsc,  sizeof(new_tsc), 0x10);
+	pread(fd, &new_aperf,  sizeof(new_mperf), 0xe7);
+	pread(fd, &new_mperf,  sizeof(new_aperf), 0xe8);
+
+	tsc = new_tsc-old_tsc;
+	aperf = new_aperf-old_aperf;
+	mperf = new_mperf-old_mperf;
+
+	start = before.tv_sec*MSEC_PER_SEC + before.tv_nsec/NSEC_PER_MSEC;
+	finish = after.tv_sec*MSEC_PER_SEC + after.tv_nsec/NSEC_PER_MSEC;
+	total = finish - start;
+
+	printf("runTime: %4.2f\n", 1.0*total/MSEC_PER_SEC);
+	printf("freq: %7.0f\n", tsc / (1.0*aperf / (1.0 * mperf)) / total);
+	return 0;
+}
diff --git a/tools/testing/selftests/intel_pstate/msr.c b/tools/testing/selftests/intel_pstate/msr.c
new file mode 100644
index 000000000000..88fdd2a4b0a0
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/msr.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <math.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/timeb.h>
+#include <sched.h>
+#include <errno.h>
+
+
+int main(int argc, char **argv) {
+	int cpu, fd;
+	long long msr;
+	char msr_file_name[64];
+
+	if (argc != 2)
+		return 1;
+
+	errno = 0;
+	cpu = strtol(argv[1], (char **) NULL, 10);
+
+	if (errno)
+		return 1;
+
+	sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
+	fd = open(msr_file_name, O_RDONLY);
+
+	if (fd == -1) {
+		perror("Failed to open");
+		return 1;
+	}
+
+	pread(fd, &msr,  sizeof(msr), 0x199);
+
+	printf("msr 0x199: 0x%llx\n", msr);
+	return 0;
+}
diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
new file mode 100755
index 000000000000..6a3b8503264e
--- /dev/null
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -0,0 +1,133 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test runs on Intel x86 based hardware which support the intel_pstate
+# driver.  The test checks the frequency settings from the maximum turbo
+# state to the minimum supported frequency, in decrements of 100MHz.  The
+# test runs the aperf.c program to put load on each processor.
+#
+# The results are displayed in a table which indicate the "Target" state,
+# or the requested frequency in MHz, the Actual frequency, as read from
+# /proc/cpuinfo, the difference between the Target and Actual frequencies,
+# and the value of MSR 0x199 (MSR_IA32_PERF_CTL) which indicates what
+# pstate the cpu is in, and the value of
+# /sys/devices/system/cpu/intel_pstate/max_perf_pct X maximum turbo state
+#
+# Notes: In some cases several frequency values may be placed in the
+# /tmp/result.X files.  This is done on purpose in order to catch cases
+# where the pstate driver may not be working at all.  There is the case
+# where, for example, several "similar" frequencies are in the file:
+#
+#
+#/tmp/result.3100:1:cpu MHz              : 2899.980
+#/tmp/result.3100:2:cpu MHz              : 2900.000
+#/tmp/result.3100:3:msr 0x199: 0x1e00
+#/tmp/result.3100:4:max_perf_pct 94
+#
+# and the test will error out in those cases.  The result.X file can be checked
+# for consistency and modified to remove the extra MHz values.  The result.X
+# files can be re-evaluated by setting EVALUATE_ONLY to 1 below.
+
+EVALUATE_ONLY=0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+if ! uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ | grep -q x86; then
+	echo "$0 # Skipped: Test can only run on x86 architectures."
+	exit $ksft_skip
+fi
+
+msg="skip all tests:"
+if [ $UID != 0 ] && [ $EVALUATE_ONLY == 0 ]; then
+    echo $msg please run this as root >&2
+    exit $ksft_skip
+fi
+
+if ! command -v cpupower &> /dev/null; then
+	echo $msg cpupower could not be found, please install it >&2
+	exit $ksft_skip
+fi
+
+max_cpus=$(($(nproc)-1))
+
+function run_test () {
+
+	file_ext=$1
+	for cpu in `seq 0 $max_cpus`
+	do
+		echo "launching aperf load on $cpu"
+		./aperf $cpu &
+	done
+
+	echo "sleeping for 5 seconds"
+	sleep 5
+	grep MHz /proc/cpuinfo | sort -u > /tmp/result.freqs
+	num_freqs=$(wc -l /tmp/result.freqs | awk ' { print $1 } ')
+	if [ $num_freqs -ge 2 ]; then
+		tail -n 1 /tmp/result.freqs > /tmp/result.$1
+	else
+		cp /tmp/result.freqs /tmp/result.$1
+	fi
+	./msr 0 >> /tmp/result.$1
+
+	max_perf_pct=$(cat /sys/devices/system/cpu/intel_pstate/max_perf_pct)
+	echo "max_perf_pct $max_perf_pct" >> /tmp/result.$1
+
+	for job in `jobs -p`
+	do
+		echo "waiting for job id $job"
+		wait $job
+	done
+}
+
+#
+# MAIN (ALL UNITS IN MHZ)
+#
+
+# Get the marketing frequency
+_mkt_freq=$(cat /proc/cpuinfo | grep -m 1 "model name" | awk '{print $NF}')
+_mkt_freq=$(echo $_mkt_freq | tr -d [:alpha:][:punct:])
+mkt_freq=${_mkt_freq}0
+
+# Get the ranges from cpupower
+_min_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $1 } ')
+min_freq=$((_min_freq / 1000))
+_max_freq=$(cpupower frequency-info -l | tail -1 | awk ' { print $2 } ')
+max_freq=$((_max_freq / 1000))
+
+
+[ $EVALUATE_ONLY -eq 0 ] && for freq in `seq $max_freq -100 $min_freq`
+do
+	echo "Setting maximum frequency to $freq"
+	cpupower frequency-set -g powersave --max=${freq}MHz >& /dev/null
+	run_test $freq
+done
+
+[ $EVALUATE_ONLY -eq 0 ] && cpupower frequency-set -g powersave --max=${max_freq}MHz >& /dev/null
+
+echo "========================================================================"
+echo "The marketing frequency of the cpu is $mkt_freq MHz"
+echo "The maximum frequency of the cpu is $max_freq MHz"
+echo "The minimum frequency of the cpu is $min_freq MHz"
+
+# make a pretty table
+echo "Target Actual Difference MSR(0x199) max_perf_pct" | tr " " "\n" > /tmp/result.tab
+for freq in `seq $max_freq -100 $min_freq`
+do
+	result_freq=$(cat /tmp/result.${freq} | grep "cpu MHz" | awk ' { print $4 } ' | awk -F "." ' { print $1 } ')
+	msr=$(cat /tmp/result.${freq} | grep "msr" | awk ' { print $3 } ')
+	max_perf_pct=$(cat /tmp/result.${freq} | grep "max_perf_pct" | awk ' { print $2 } ' )
+	cat >> /tmp/result.tab << EOF
+$freq
+$result_freq
+$((result_freq - freq))
+$msr
+$((max_perf_pct * max_freq))
+EOF
+done
+
+# print the table
+pr -aTt -5 < /tmp/result.tab
+
+exit 0
diff --git a/tools/testing/selftests/iommu/.gitignore b/tools/testing/selftests/iommu/.gitignore
new file mode 100644
index 000000000000..7d0703049eba
--- /dev/null
+++ b/tools/testing/selftests/iommu/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/iommufd
+/iommufd_fail_nth
diff --git a/tools/testing/selftests/iommu/Makefile b/tools/testing/selftests/iommu/Makefile
new file mode 100644
index 000000000000..84abeb2f0949
--- /dev/null
+++ b/tools/testing/selftests/iommu/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -Wall -O2 -Wno-unused-function
+CFLAGS += $(KHDR_INCLUDES)
+LDLIBS += -lcap
+
+TEST_GEN_PROGS :=
+TEST_GEN_PROGS += iommufd
+TEST_GEN_PROGS += iommufd_fail_nth
+
+include ../lib.mk
diff --git a/tools/testing/selftests/iommu/config b/tools/testing/selftests/iommu/config
new file mode 100644
index 000000000000..02a2a1b267c1
--- /dev/null
+++ b/tools/testing/selftests/iommu/config
@@ -0,0 +1,5 @@
+CONFIG_IOMMUFD=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FAULT_INJECTION=y
+CONFIG_IOMMUFD_TEST=y
+CONFIG_FAILSLAB=y
diff --git a/tools/testing/selftests/iommu/iommufd.c b/tools/testing/selftests/iommu/iommufd.c
new file mode 100644
index 000000000000..10e051b6f592
--- /dev/null
+++ b/tools/testing/selftests/iommu/iommufd.c
@@ -0,0 +1,3544 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES */
+#include <asm/unistd.h>
+#include <stdlib.h>
+#include <sys/capability.h>
+#include <sys/mman.h>
+#include <sys/eventfd.h>
+
+#define __EXPORTED_HEADERS__
+#include <linux/vfio.h>
+
+#include "iommufd_utils.h"
+
+static unsigned long HUGEPAGE_SIZE;
+
+static unsigned long get_huge_page_size(void)
+{
+	char buf[80];
+	int ret;
+	int fd;
+
+	fd = open("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size",
+		  O_RDONLY);
+	if (fd < 0)
+		return 2 * 1024 * 1024;
+
+	ret = read(fd, buf, sizeof(buf));
+	close(fd);
+	if (ret <= 0 || ret == sizeof(buf))
+		return 2 * 1024 * 1024;
+	buf[ret] = 0;
+	return strtoul(buf, NULL, 10);
+}
+
+static __attribute__((constructor)) void setup_sizes(void)
+{
+	void *vrc;
+	int rc;
+
+	PAGE_SIZE = sysconf(_SC_PAGE_SIZE);
+	HUGEPAGE_SIZE = get_huge_page_size();
+
+	BUFFER_SIZE = PAGE_SIZE * 16;
+	rc = posix_memalign(&buffer, HUGEPAGE_SIZE, BUFFER_SIZE);
+	assert(!rc);
+	assert(buffer);
+	assert((uintptr_t)buffer % HUGEPAGE_SIZE == 0);
+	vrc = mmap(buffer, BUFFER_SIZE, PROT_READ | PROT_WRITE,
+		   MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+	assert(vrc == buffer);
+
+	mfd_buffer = memfd_mmap(BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+				&mfd);
+	assert(mfd_buffer != MAP_FAILED);
+	assert(mfd > 0);
+}
+
+FIXTURE(iommufd)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(iommufd)
+{
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+}
+
+FIXTURE_TEARDOWN(iommufd)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+TEST_F(iommufd, simple_close)
+{
+}
+
+TEST_F(iommufd, cmd_fail)
+{
+	struct iommu_destroy cmd = { .size = sizeof(cmd), .id = 0 };
+
+	/* object id is invalid */
+	EXPECT_ERRNO(ENOENT, _test_ioctl_destroy(self->fd, 0));
+	/* Bad pointer */
+	EXPECT_ERRNO(EFAULT, ioctl(self->fd, IOMMU_DESTROY, NULL));
+	/* Unknown ioctl */
+	EXPECT_ERRNO(ENOTTY,
+		     ioctl(self->fd, _IO(IOMMUFD_TYPE, IOMMUFD_CMD_BASE - 1),
+			   &cmd));
+}
+
+TEST_F(iommufd, cmd_length)
+{
+#define TEST_LENGTH(_struct, _ioctl, _last)                              \
+	{                                                                \
+		size_t min_size = offsetofend(struct _struct, _last);    \
+		struct {                                                 \
+			struct _struct cmd;                              \
+			uint8_t extra;                                   \
+		} cmd = { .cmd = { .size = min_size - 1 },               \
+			  .extra = UINT8_MAX };                          \
+		int old_errno;                                           \
+		int rc;                                                  \
+									 \
+		EXPECT_ERRNO(EINVAL, ioctl(self->fd, _ioctl, &cmd));     \
+		cmd.cmd.size = sizeof(struct _struct) + 1;               \
+		EXPECT_ERRNO(E2BIG, ioctl(self->fd, _ioctl, &cmd));      \
+		cmd.cmd.size = sizeof(struct _struct);                   \
+		rc = ioctl(self->fd, _ioctl, &cmd);                      \
+		old_errno = errno;                                       \
+		cmd.cmd.size = sizeof(struct _struct) + 1;               \
+		cmd.extra = 0;                                           \
+		if (rc) {                                                \
+			EXPECT_ERRNO(old_errno,                          \
+				     ioctl(self->fd, _ioctl, &cmd));     \
+		} else {                                                 \
+			ASSERT_EQ(0, ioctl(self->fd, _ioctl, &cmd));     \
+		}                                                        \
+	}
+
+	TEST_LENGTH(iommu_destroy, IOMMU_DESTROY, id);
+	TEST_LENGTH(iommu_hw_info, IOMMU_GET_HW_INFO, __reserved);
+	TEST_LENGTH(iommu_hwpt_alloc, IOMMU_HWPT_ALLOC, __reserved);
+	TEST_LENGTH(iommu_hwpt_invalidate, IOMMU_HWPT_INVALIDATE, __reserved);
+	TEST_LENGTH(iommu_ioas_alloc, IOMMU_IOAS_ALLOC, out_ioas_id);
+	TEST_LENGTH(iommu_ioas_iova_ranges, IOMMU_IOAS_IOVA_RANGES,
+		    out_iova_alignment);
+	TEST_LENGTH(iommu_ioas_allow_iovas, IOMMU_IOAS_ALLOW_IOVAS,
+		    allowed_iovas);
+	TEST_LENGTH(iommu_ioas_map, IOMMU_IOAS_MAP, iova);
+	TEST_LENGTH(iommu_ioas_copy, IOMMU_IOAS_COPY, src_iova);
+	TEST_LENGTH(iommu_ioas_unmap, IOMMU_IOAS_UNMAP, length);
+	TEST_LENGTH(iommu_option, IOMMU_OPTION, val64);
+	TEST_LENGTH(iommu_vfio_ioas, IOMMU_VFIO_IOAS, __reserved);
+	TEST_LENGTH(iommu_ioas_map_file, IOMMU_IOAS_MAP_FILE, iova);
+	TEST_LENGTH(iommu_viommu_alloc, IOMMU_VIOMMU_ALLOC, out_viommu_id);
+	TEST_LENGTH(iommu_vdevice_alloc, IOMMU_VDEVICE_ALLOC, virt_id);
+	TEST_LENGTH(iommu_ioas_change_process, IOMMU_IOAS_CHANGE_PROCESS,
+		    __reserved);
+#undef TEST_LENGTH
+}
+
+TEST_F(iommufd, cmd_ex_fail)
+{
+	struct {
+		struct iommu_destroy cmd;
+		__u64 future;
+	} cmd = { .cmd = { .size = sizeof(cmd), .id = 0 } };
+
+	/* object id is invalid and command is longer */
+	EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_DESTROY, &cmd));
+	/* future area is non-zero */
+	cmd.future = 1;
+	EXPECT_ERRNO(E2BIG, ioctl(self->fd, IOMMU_DESTROY, &cmd));
+	/* Original command "works" */
+	cmd.cmd.size = sizeof(cmd.cmd);
+	EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_DESTROY, &cmd));
+	/* Short command fails */
+	cmd.cmd.size = sizeof(cmd.cmd) - 1;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, IOMMU_DESTROY, &cmd));
+}
+
+TEST_F(iommufd, global_options)
+{
+	struct iommu_option cmd = {
+		.size = sizeof(cmd),
+		.option_id = IOMMU_OPTION_RLIMIT_MODE,
+		.op = IOMMU_OPTION_OP_GET,
+		.val64 = 1,
+	};
+
+	cmd.option_id = IOMMU_OPTION_RLIMIT_MODE;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	ASSERT_EQ(0, cmd.val64);
+
+	/* This requires root */
+	cmd.op = IOMMU_OPTION_OP_SET;
+	cmd.val64 = 1;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	cmd.val64 = 2;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	cmd.op = IOMMU_OPTION_OP_GET;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	ASSERT_EQ(1, cmd.val64);
+
+	cmd.op = IOMMU_OPTION_OP_SET;
+	cmd.val64 = 0;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	cmd.op = IOMMU_OPTION_OP_GET;
+	cmd.option_id = IOMMU_OPTION_HUGE_PAGES;
+	EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	cmd.op = IOMMU_OPTION_OP_SET;
+	EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_OPTION, &cmd));
+}
+
+static void drop_cap_ipc_lock(struct __test_metadata *_metadata)
+{
+	cap_t caps;
+	cap_value_t cap_list[1] = { CAP_IPC_LOCK };
+
+	caps = cap_get_proc();
+	ASSERT_NE(caps, NULL);
+	ASSERT_NE(-1,
+		  cap_set_flag(caps, CAP_EFFECTIVE, 1, cap_list, CAP_CLEAR));
+	ASSERT_NE(-1, cap_set_proc(caps));
+	cap_free(caps);
+}
+
+static long get_proc_status_value(pid_t pid, const char *var)
+{
+	FILE *fp;
+	char buf[80], tag[80];
+	long val = -1;
+
+	snprintf(buf, sizeof(buf), "/proc/%d/status", pid);
+	fp = fopen(buf, "r");
+	if (!fp)
+		return val;
+
+	while (fgets(buf, sizeof(buf), fp))
+		if (fscanf(fp, "%s %ld\n", tag, &val) == 2 && !strcmp(tag, var))
+			break;
+
+	fclose(fp);
+	return val;
+}
+
+static long get_vm_pinned(pid_t pid)
+{
+	return get_proc_status_value(pid, "VmPin:");
+}
+
+static long get_vm_locked(pid_t pid)
+{
+	return get_proc_status_value(pid, "VmLck:");
+}
+
+FIXTURE(change_process)
+{
+	int fd;
+	uint32_t ioas_id;
+};
+
+FIXTURE_VARIANT(change_process)
+{
+	int accounting;
+};
+
+FIXTURE_SETUP(change_process)
+{
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+
+	drop_cap_ipc_lock(_metadata);
+	if (variant->accounting != IOPT_PAGES_ACCOUNT_NONE) {
+		struct iommu_option set_limit_cmd = {
+			.size = sizeof(set_limit_cmd),
+			.option_id = IOMMU_OPTION_RLIMIT_MODE,
+			.op = IOMMU_OPTION_OP_SET,
+			.val64 = (variant->accounting == IOPT_PAGES_ACCOUNT_MM),
+		};
+		ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &set_limit_cmd));
+	}
+
+	test_ioctl_ioas_alloc(&self->ioas_id);
+	test_cmd_mock_domain(self->ioas_id, NULL, NULL, NULL);
+}
+
+FIXTURE_TEARDOWN(change_process)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(change_process, account_none)
+{
+	.accounting = IOPT_PAGES_ACCOUNT_NONE,
+};
+
+FIXTURE_VARIANT_ADD(change_process, account_user)
+{
+	.accounting = IOPT_PAGES_ACCOUNT_USER,
+};
+
+FIXTURE_VARIANT_ADD(change_process, account_mm)
+{
+	.accounting = IOPT_PAGES_ACCOUNT_MM,
+};
+
+TEST_F(change_process, basic)
+{
+	pid_t parent = getpid();
+	pid_t child;
+	__u64 iova;
+	struct iommu_ioas_change_process cmd = {
+		.size = sizeof(cmd),
+	};
+
+	/* Expect failure if non-file maps exist */
+	test_ioctl_ioas_map(buffer, PAGE_SIZE, &iova);
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, IOMMU_IOAS_CHANGE_PROCESS, &cmd));
+	test_ioctl_ioas_unmap(iova, PAGE_SIZE);
+
+	/* Change process works in current process. */
+	test_ioctl_ioas_map_file(mfd, 0, PAGE_SIZE, &iova);
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_CHANGE_PROCESS, &cmd));
+
+	/* Change process works in another process */
+	child = fork();
+	if (!child) {
+		int nlock = PAGE_SIZE / 1024;
+
+		/* Parent accounts for locked memory before */
+		ASSERT_EQ(nlock, get_vm_pinned(parent));
+		if (variant->accounting == IOPT_PAGES_ACCOUNT_MM)
+			ASSERT_EQ(nlock, get_vm_locked(parent));
+		ASSERT_EQ(0, get_vm_pinned(getpid()));
+		ASSERT_EQ(0, get_vm_locked(getpid()));
+
+		ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_CHANGE_PROCESS, &cmd));
+
+		/* Child accounts for locked memory after */
+		ASSERT_EQ(0, get_vm_pinned(parent));
+		ASSERT_EQ(0, get_vm_locked(parent));
+		ASSERT_EQ(nlock, get_vm_pinned(getpid()));
+		if (variant->accounting == IOPT_PAGES_ACCOUNT_MM)
+			ASSERT_EQ(nlock, get_vm_locked(getpid()));
+
+		exit(0);
+	}
+	ASSERT_NE(-1, child);
+	ASSERT_EQ(child, waitpid(child, NULL, 0));
+}
+
+FIXTURE(iommufd_ioas)
+{
+	int fd;
+	uint32_t ioas_id;
+	uint32_t stdev_id;
+	uint32_t hwpt_id;
+	uint32_t device_id;
+	uint64_t base_iova;
+	uint32_t device_pasid_id;
+};
+
+FIXTURE_VARIANT(iommufd_ioas)
+{
+	unsigned int mock_domains;
+	unsigned int memory_limit;
+	bool pasid_capable;
+};
+
+FIXTURE_SETUP(iommufd_ioas)
+{
+	unsigned int i;
+
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+	test_ioctl_ioas_alloc(&self->ioas_id);
+
+	if (!variant->memory_limit) {
+		test_ioctl_set_default_memory_limit();
+	} else {
+		test_ioctl_set_temp_memory_limit(variant->memory_limit);
+	}
+
+	for (i = 0; i != variant->mock_domains; i++) {
+		test_cmd_mock_domain(self->ioas_id, &self->stdev_id,
+				     &self->hwpt_id, &self->device_id);
+		test_cmd_dev_check_cache_all(self->device_id,
+					     IOMMU_TEST_DEV_CACHE_DEFAULT);
+		self->base_iova = MOCK_APERTURE_START;
+	}
+
+	if (variant->pasid_capable)
+		test_cmd_mock_domain_flags(self->ioas_id,
+					   MOCK_FLAGS_DEVICE_PASID,
+					   NULL, NULL,
+					   &self->device_pasid_id);
+}
+
+FIXTURE_TEARDOWN(iommufd_ioas)
+{
+	test_ioctl_set_default_memory_limit();
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_ioas, no_domain)
+{
+};
+
+FIXTURE_VARIANT_ADD(iommufd_ioas, mock_domain)
+{
+	.mock_domains = 1,
+	.pasid_capable = true,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_ioas, two_mock_domain)
+{
+	.mock_domains = 2,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_ioas, mock_domain_limit)
+{
+	.mock_domains = 1,
+	.memory_limit = 16,
+};
+
+TEST_F(iommufd_ioas, ioas_auto_destroy)
+{
+}
+
+TEST_F(iommufd_ioas, ioas_destroy)
+{
+	if (self->stdev_id) {
+		/* IOAS cannot be freed while a device has a HWPT using it */
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, self->ioas_id));
+	} else {
+		/* Can allocate and manually free an IOAS table */
+		test_ioctl_destroy(self->ioas_id);
+	}
+}
+
+TEST_F(iommufd_ioas, alloc_hwpt_nested)
+{
+	const uint32_t min_data_len =
+		offsetofend(struct iommu_hwpt_selftest, iotlb);
+	struct iommu_hwpt_selftest data = {
+		.iotlb = IOMMU_TEST_IOTLB_DEFAULT,
+	};
+	struct iommu_hwpt_invalidate_selftest inv_reqs[2] = {};
+	uint32_t nested_hwpt_id[2] = {};
+	uint32_t num_inv;
+	uint32_t parent_hwpt_id = 0;
+	uint32_t parent_hwpt_id_not_work = 0;
+	uint32_t test_hwpt_id = 0;
+	uint32_t iopf_hwpt_id;
+	uint32_t fault_id;
+	uint32_t fault_fd;
+
+	if (self->device_id) {
+		/* Negative tests */
+		test_err_hwpt_alloc(ENOENT, self->ioas_id, self->device_id, 0,
+				    &test_hwpt_id);
+		test_err_hwpt_alloc(EINVAL, self->device_id, self->device_id, 0,
+				    &test_hwpt_id);
+		test_err_hwpt_alloc(EOPNOTSUPP, self->device_id, self->ioas_id,
+				    IOMMU_HWPT_ALLOC_NEST_PARENT |
+						IOMMU_HWPT_FAULT_ID_VALID,
+				    &test_hwpt_id);
+
+		test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
+				    IOMMU_HWPT_ALLOC_NEST_PARENT,
+				    &parent_hwpt_id);
+
+		test_cmd_hwpt_alloc(self->device_id, self->ioas_id, 0,
+				    &parent_hwpt_id_not_work);
+
+		/* Negative nested tests */
+		test_err_hwpt_alloc_nested(EINVAL, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_NONE, &data,
+					   sizeof(data));
+		test_err_hwpt_alloc_nested(EOPNOTSUPP, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST + 1, &data,
+					   sizeof(data));
+		test_err_hwpt_alloc_nested(EINVAL, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   min_data_len - 1);
+		test_err_hwpt_alloc_nested(EFAULT, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST, NULL,
+					   sizeof(data));
+		test_err_hwpt_alloc_nested(
+			EOPNOTSUPP, self->device_id, parent_hwpt_id,
+			IOMMU_HWPT_ALLOC_NEST_PARENT, &nested_hwpt_id[0],
+			IOMMU_HWPT_DATA_SELFTEST, &data, sizeof(data));
+		test_err_hwpt_alloc_nested(EINVAL, self->device_id,
+					   parent_hwpt_id_not_work, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+
+		/* Allocate two nested hwpts sharing one common parent hwpt */
+		test_ioctl_fault_alloc(&fault_id, &fault_fd);
+		test_cmd_hwpt_alloc_nested(self->device_id, parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+		test_cmd_hwpt_alloc_nested(self->device_id, parent_hwpt_id, 0,
+					   &nested_hwpt_id[1],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+		test_err_hwpt_alloc_iopf(ENOENT, self->device_id, parent_hwpt_id,
+					 UINT32_MAX, IOMMU_HWPT_FAULT_ID_VALID,
+					 &iopf_hwpt_id, IOMMU_HWPT_DATA_SELFTEST,
+					 &data, sizeof(data));
+		test_cmd_hwpt_alloc_iopf(self->device_id, parent_hwpt_id, fault_id,
+					 IOMMU_HWPT_FAULT_ID_VALID, &iopf_hwpt_id,
+					 IOMMU_HWPT_DATA_SELFTEST, &data,
+					 sizeof(data));
+		test_cmd_hwpt_check_iotlb_all(nested_hwpt_id[0],
+					      IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb_all(nested_hwpt_id[1],
+					      IOMMU_TEST_IOTLB_DEFAULT);
+
+		/* Negative test: a nested hwpt on top of a nested hwpt */
+		test_err_hwpt_alloc_nested(EINVAL, self->device_id,
+					   nested_hwpt_id[0], 0, &test_hwpt_id,
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+		/* Negative test: parent hwpt now cannot be freed */
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, parent_hwpt_id));
+
+		/* hwpt_invalidate does not support a parent hwpt */
+		num_inv = 1;
+		test_err_hwpt_invalidate(EINVAL, parent_hwpt_id, inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/* Check data_type by passing zero-length array */
+		num_inv = 0;
+		test_cmd_hwpt_invalidate(nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: Invalid data_type */
+		num_inv = 1;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST_INVALID,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: structure size sanity */
+		num_inv = 1;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs) + 1, &num_inv);
+		assert(!num_inv);
+
+		num_inv = 1;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 1, &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: invalid flag is passed */
+		num_inv = 1;
+		inv_reqs[0].flags = 0xffffffff;
+		test_err_hwpt_invalidate(EOPNOTSUPP, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: invalid data_uptr when array is not empty */
+		num_inv = 1;
+		inv_reqs[0].flags = 0;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], NULL,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: invalid entry_len when array is not empty */
+		num_inv = 1;
+		inv_reqs[0].flags = 0;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 0, &num_inv);
+		assert(!num_inv);
+
+		/* Negative test: invalid iotlb_id */
+		num_inv = 1;
+		inv_reqs[0].flags = 0;
+		inv_reqs[0].iotlb_id = MOCK_NESTED_DOMAIN_IOTLB_ID_MAX + 1;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(!num_inv);
+
+		/*
+		 * Invalidate the 1st iotlb entry but fail the 2nd request
+		 * due to invalid flags configuration in the 2nd request.
+		 */
+		num_inv = 2;
+		inv_reqs[0].flags = 0;
+		inv_reqs[0].iotlb_id = 0;
+		inv_reqs[1].flags = 0xffffffff;
+		inv_reqs[1].iotlb_id = 1;
+		test_err_hwpt_invalidate(EOPNOTSUPP, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(num_inv == 1);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 0, 0);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 1,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 2,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 3,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+
+		/*
+		 * Invalidate the 1st iotlb entry but fail the 2nd request
+		 * due to invalid iotlb_id configuration in the 2nd request.
+		 */
+		num_inv = 2;
+		inv_reqs[0].flags = 0;
+		inv_reqs[0].iotlb_id = 0;
+		inv_reqs[1].flags = 0;
+		inv_reqs[1].iotlb_id = MOCK_NESTED_DOMAIN_IOTLB_ID_MAX + 1;
+		test_err_hwpt_invalidate(EINVAL, nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(num_inv == 1);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 0, 0);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 1,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 2,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 3,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+
+		/* Invalidate the 2nd iotlb entry and verify */
+		num_inv = 1;
+		inv_reqs[0].flags = 0;
+		inv_reqs[0].iotlb_id = 1;
+		test_cmd_hwpt_invalidate(nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(num_inv == 1);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 0, 0);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 1, 0);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 2,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+		test_cmd_hwpt_check_iotlb(nested_hwpt_id[0], 3,
+					  IOMMU_TEST_IOTLB_DEFAULT);
+
+		/* Invalidate the 3rd and 4th iotlb entries and verify */
+		num_inv = 2;
+		inv_reqs[0].flags = 0;
+		inv_reqs[0].iotlb_id = 2;
+		inv_reqs[1].flags = 0;
+		inv_reqs[1].iotlb_id = 3;
+		test_cmd_hwpt_invalidate(nested_hwpt_id[0], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(num_inv == 2);
+		test_cmd_hwpt_check_iotlb_all(nested_hwpt_id[0], 0);
+
+		/* Invalidate all iotlb entries for nested_hwpt_id[1] and verify */
+		num_inv = 1;
+		inv_reqs[0].flags = IOMMU_TEST_INVALIDATE_FLAG_ALL;
+		test_cmd_hwpt_invalidate(nested_hwpt_id[1], inv_reqs,
+					 IOMMU_HWPT_INVALIDATE_DATA_SELFTEST,
+					 sizeof(*inv_reqs), &num_inv);
+		assert(num_inv == 1);
+		test_cmd_hwpt_check_iotlb_all(nested_hwpt_id[1], 0);
+
+		/* Attach device to nested_hwpt_id[0] that then will be busy */
+		test_cmd_mock_domain_replace(self->stdev_id, nested_hwpt_id[0]);
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, nested_hwpt_id[0]));
+
+		/* Switch from nested_hwpt_id[0] to nested_hwpt_id[1] */
+		test_cmd_mock_domain_replace(self->stdev_id, nested_hwpt_id[1]);
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, nested_hwpt_id[1]));
+		test_ioctl_destroy(nested_hwpt_id[0]);
+
+		/* Switch from nested_hwpt_id[1] to iopf_hwpt_id */
+		test_cmd_mock_domain_replace(self->stdev_id, iopf_hwpt_id);
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, iopf_hwpt_id));
+		/* Trigger an IOPF on the device */
+		test_cmd_trigger_iopf(self->device_id, fault_fd);
+
+		/* Detach from nested_hwpt_id[1] and destroy it */
+		test_cmd_mock_domain_replace(self->stdev_id, parent_hwpt_id);
+		test_ioctl_destroy(nested_hwpt_id[1]);
+		test_ioctl_destroy(iopf_hwpt_id);
+
+		/* Detach from the parent hw_pagetable and destroy it */
+		test_cmd_mock_domain_replace(self->stdev_id, self->ioas_id);
+		test_ioctl_destroy(parent_hwpt_id);
+		test_ioctl_destroy(parent_hwpt_id_not_work);
+		close(fault_fd);
+		test_ioctl_destroy(fault_id);
+	} else {
+		test_err_hwpt_alloc(ENOENT, self->device_id, self->ioas_id, 0,
+				    &parent_hwpt_id);
+		test_err_hwpt_alloc_nested(ENOENT, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[0],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+		test_err_hwpt_alloc_nested(ENOENT, self->device_id,
+					   parent_hwpt_id, 0,
+					   &nested_hwpt_id[1],
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+		test_err_mock_domain_replace(ENOENT, self->stdev_id,
+					     nested_hwpt_id[0]);
+		test_err_mock_domain_replace(ENOENT, self->stdev_id,
+					     nested_hwpt_id[1]);
+	}
+}
+
+TEST_F(iommufd_ioas, hwpt_attach)
+{
+	/* Create a device attached directly to a hwpt */
+	if (self->stdev_id) {
+		test_cmd_mock_domain(self->hwpt_id, NULL, NULL, NULL);
+	} else {
+		test_err_mock_domain(ENOENT, self->hwpt_id, NULL, NULL);
+	}
+}
+
+TEST_F(iommufd_ioas, ioas_area_destroy)
+{
+	/* Adding an area does not change ability to destroy */
+	test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE, self->base_iova);
+	if (self->stdev_id)
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, self->ioas_id));
+	else
+		test_ioctl_destroy(self->ioas_id);
+}
+
+TEST_F(iommufd_ioas, ioas_area_auto_destroy)
+{
+	int i;
+
+	/* Can allocate and automatically free an IOAS table with many areas */
+	for (i = 0; i != 10; i++) {
+		test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE,
+					  self->base_iova + i * PAGE_SIZE);
+	}
+}
+
+TEST_F(iommufd_ioas, get_hw_info)
+{
+	struct iommu_test_hw_info buffer_exact;
+	struct iommu_test_hw_info_buffer_larger {
+		struct iommu_test_hw_info info;
+		uint64_t trailing_bytes;
+	} buffer_larger;
+	struct iommu_test_hw_info_buffer_smaller {
+		__u32 flags;
+	} buffer_smaller;
+
+	if (self->device_id) {
+		uint8_t max_pasid = 0;
+
+		/* Provide a zero-size user_buffer */
+		test_cmd_get_hw_info(self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT, NULL, 0);
+		/* Provide a user_buffer with exact size */
+		test_cmd_get_hw_info(self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT, &buffer_exact,
+				     sizeof(buffer_exact));
+
+		/* Request for a wrong data_type, and a correct one */
+		test_err_get_hw_info(EOPNOTSUPP, self->device_id,
+				     IOMMU_HW_INFO_TYPE_SELFTEST + 1,
+				     &buffer_exact, sizeof(buffer_exact));
+		test_cmd_get_hw_info(self->device_id,
+				     IOMMU_HW_INFO_TYPE_SELFTEST, &buffer_exact,
+				     sizeof(buffer_exact));
+		/*
+		 * Provide a user_buffer with size larger than the exact size to check if
+		 * kernel zero the trailing bytes.
+		 */
+		test_cmd_get_hw_info(self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT, &buffer_larger,
+				     sizeof(buffer_larger));
+		/*
+		 * Provide a user_buffer with size smaller than the exact size to check if
+		 * the fields within the size range still gets updated.
+		 */
+		test_cmd_get_hw_info(self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT,
+				     &buffer_smaller, sizeof(buffer_smaller));
+		test_cmd_get_hw_info_pasid(self->device_id, &max_pasid);
+		ASSERT_EQ(0, max_pasid);
+		if (variant->pasid_capable) {
+			test_cmd_get_hw_info_pasid(self->device_pasid_id,
+						   &max_pasid);
+			ASSERT_EQ(MOCK_PASID_WIDTH, max_pasid);
+		}
+	} else {
+		test_err_get_hw_info(ENOENT, self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT, &buffer_exact,
+				     sizeof(buffer_exact));
+		test_err_get_hw_info(ENOENT, self->device_id,
+				     IOMMU_HW_INFO_TYPE_DEFAULT, &buffer_larger,
+				     sizeof(buffer_larger));
+	}
+}
+
+TEST_F(iommufd_ioas, area)
+{
+	int i;
+
+	/* Unmap fails if nothing is mapped */
+	for (i = 0; i != 10; i++)
+		test_err_ioctl_ioas_unmap(ENOENT, i * PAGE_SIZE, PAGE_SIZE);
+
+	/* Unmap works */
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE,
+					  self->base_iova + i * PAGE_SIZE);
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_unmap(self->base_iova + i * PAGE_SIZE,
+				      PAGE_SIZE);
+
+	/* Split fails */
+	test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE * 2,
+				  self->base_iova + 16 * PAGE_SIZE);
+	test_err_ioctl_ioas_unmap(ENOENT, self->base_iova + 16 * PAGE_SIZE,
+				  PAGE_SIZE);
+	test_err_ioctl_ioas_unmap(ENOENT, self->base_iova + 17 * PAGE_SIZE,
+				  PAGE_SIZE);
+
+	/* Over map fails */
+	test_err_ioctl_ioas_map_fixed(EEXIST, buffer, PAGE_SIZE * 2,
+				      self->base_iova + 16 * PAGE_SIZE);
+	test_err_ioctl_ioas_map_fixed(EEXIST, buffer, PAGE_SIZE,
+				      self->base_iova + 16 * PAGE_SIZE);
+	test_err_ioctl_ioas_map_fixed(EEXIST, buffer, PAGE_SIZE,
+				      self->base_iova + 17 * PAGE_SIZE);
+	test_err_ioctl_ioas_map_fixed(EEXIST, buffer, PAGE_SIZE * 2,
+				      self->base_iova + 15 * PAGE_SIZE);
+	test_err_ioctl_ioas_map_fixed(EEXIST, buffer, PAGE_SIZE * 3,
+				      self->base_iova + 15 * PAGE_SIZE);
+
+	/* unmap all works */
+	test_ioctl_ioas_unmap(0, UINT64_MAX);
+
+	/* Unmap all succeeds on an empty IOAS */
+	test_ioctl_ioas_unmap(0, UINT64_MAX);
+}
+
+TEST_F(iommufd_ioas, unmap_fully_contained_areas)
+{
+	uint64_t unmap_len;
+	int i;
+
+	/* Give no_domain some space to rewind base_iova */
+	self->base_iova += 4 * PAGE_SIZE;
+
+	for (i = 0; i != 4; i++)
+		test_ioctl_ioas_map_fixed(buffer, 8 * PAGE_SIZE,
+					  self->base_iova + i * 16 * PAGE_SIZE);
+
+	/* Unmap not fully contained area doesn't work */
+	test_err_ioctl_ioas_unmap(ENOENT, self->base_iova - 4 * PAGE_SIZE,
+				  8 * PAGE_SIZE);
+	test_err_ioctl_ioas_unmap(ENOENT,
+				  self->base_iova + 3 * 16 * PAGE_SIZE +
+					  8 * PAGE_SIZE - 4 * PAGE_SIZE,
+				  8 * PAGE_SIZE);
+
+	/* Unmap fully contained areas works */
+	ASSERT_EQ(0, _test_ioctl_ioas_unmap(self->fd, self->ioas_id,
+					    self->base_iova - 4 * PAGE_SIZE,
+					    3 * 16 * PAGE_SIZE + 8 * PAGE_SIZE +
+						    4 * PAGE_SIZE,
+					    &unmap_len));
+	ASSERT_EQ(32 * PAGE_SIZE, unmap_len);
+}
+
+TEST_F(iommufd_ioas, area_auto_iova)
+{
+	struct iommu_test_cmd test_cmd = {
+		.size = sizeof(test_cmd),
+		.op = IOMMU_TEST_OP_ADD_RESERVED,
+		.id = self->ioas_id,
+		.add_reserved = { .start = PAGE_SIZE * 4,
+				  .length = PAGE_SIZE * 100 },
+	};
+	struct iommu_iova_range ranges[1] = {};
+	struct iommu_ioas_allow_iovas allow_cmd = {
+		.size = sizeof(allow_cmd),
+		.ioas_id = self->ioas_id,
+		.num_iovas = 1,
+		.allowed_iovas = (uintptr_t)ranges,
+	};
+	__u64 iovas[10];
+	int i;
+
+	/* Simple 4k pages */
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_map(buffer, PAGE_SIZE, &iovas[i]);
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_unmap(iovas[i], PAGE_SIZE);
+
+	/* Kernel automatically aligns IOVAs properly */
+	for (i = 0; i != 10; i++) {
+		size_t length = PAGE_SIZE * (i + 1);
+
+		if (self->stdev_id) {
+			test_ioctl_ioas_map(buffer, length, &iovas[i]);
+		} else {
+			test_ioctl_ioas_map((void *)(1UL << 31), length,
+					    &iovas[i]);
+		}
+		EXPECT_EQ(0, iovas[i] % (1UL << (ffs(length) - 1)));
+	}
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_unmap(iovas[i], PAGE_SIZE * (i + 1));
+
+	/* Avoids a reserved region */
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ADD_RESERVED),
+			&test_cmd));
+	for (i = 0; i != 10; i++) {
+		size_t length = PAGE_SIZE * (i + 1);
+
+		test_ioctl_ioas_map(buffer, length, &iovas[i]);
+		EXPECT_EQ(0, iovas[i] % (1UL << (ffs(length) - 1)));
+		EXPECT_EQ(false,
+			  iovas[i] > test_cmd.add_reserved.start &&
+				  iovas[i] <
+					  test_cmd.add_reserved.start +
+						  test_cmd.add_reserved.length);
+	}
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_unmap(iovas[i], PAGE_SIZE * (i + 1));
+
+	/* Allowed region intersects with a reserved region */
+	ranges[0].start = PAGE_SIZE;
+	ranges[0].last = PAGE_SIZE * 600;
+	EXPECT_ERRNO(EADDRINUSE,
+		     ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
+
+	/* Allocate from an allowed region */
+	if (self->stdev_id) {
+		ranges[0].start = MOCK_APERTURE_START + PAGE_SIZE;
+		ranges[0].last = MOCK_APERTURE_START + PAGE_SIZE * 600 - 1;
+	} else {
+		ranges[0].start = PAGE_SIZE * 200;
+		ranges[0].last = PAGE_SIZE * 600 - 1;
+	}
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
+	for (i = 0; i != 10; i++) {
+		size_t length = PAGE_SIZE * (i + 1);
+
+		test_ioctl_ioas_map(buffer, length, &iovas[i]);
+		EXPECT_EQ(0, iovas[i] % (1UL << (ffs(length) - 1)));
+		EXPECT_EQ(true, iovas[i] >= ranges[0].start);
+		EXPECT_EQ(true, iovas[i] <= ranges[0].last);
+		EXPECT_EQ(true, iovas[i] + length > ranges[0].start);
+		EXPECT_EQ(true, iovas[i] + length <= ranges[0].last + 1);
+	}
+	for (i = 0; i != 10; i++)
+		test_ioctl_ioas_unmap(iovas[i], PAGE_SIZE * (i + 1));
+}
+
+/*  https://lore.kernel.org/r/685af644.a00a0220.2e5631.0094.GAE@google.com */
+TEST_F(iommufd_ioas, reserved_overflow)
+{
+	struct iommu_test_cmd test_cmd = {
+		.size = sizeof(test_cmd),
+		.op = IOMMU_TEST_OP_ADD_RESERVED,
+		.id = self->ioas_id,
+		.add_reserved.start = 6,
+	};
+	unsigned int map_len;
+	__u64 iova;
+
+	if (PAGE_SIZE == 4096) {
+		test_cmd.add_reserved.length = 0xffffffffffff8001;
+		map_len = 0x5000;
+	} else {
+		test_cmd.add_reserved.length =
+			0xffffffffffffffff - MOCK_PAGE_SIZE * 16;
+		map_len = MOCK_PAGE_SIZE * 10;
+	}
+
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ADD_RESERVED),
+			&test_cmd));
+	test_err_ioctl_ioas_map(ENOSPC, buffer, map_len, &iova);
+}
+
+TEST_F(iommufd_ioas, area_allowed)
+{
+	struct iommu_test_cmd test_cmd = {
+		.size = sizeof(test_cmd),
+		.op = IOMMU_TEST_OP_ADD_RESERVED,
+		.id = self->ioas_id,
+		.add_reserved = { .start = PAGE_SIZE * 4,
+				  .length = PAGE_SIZE * 100 },
+	};
+	struct iommu_iova_range ranges[1] = {};
+	struct iommu_ioas_allow_iovas allow_cmd = {
+		.size = sizeof(allow_cmd),
+		.ioas_id = self->ioas_id,
+		.num_iovas = 1,
+		.allowed_iovas = (uintptr_t)ranges,
+	};
+
+	/* Reserved intersects an allowed */
+	allow_cmd.num_iovas = 1;
+	ranges[0].start = self->base_iova;
+	ranges[0].last = ranges[0].start + PAGE_SIZE * 600;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
+	test_cmd.add_reserved.start = ranges[0].start + PAGE_SIZE;
+	test_cmd.add_reserved.length = PAGE_SIZE;
+	EXPECT_ERRNO(EADDRINUSE,
+		     ioctl(self->fd,
+			   _IOMMU_TEST_CMD(IOMMU_TEST_OP_ADD_RESERVED),
+			   &test_cmd));
+	allow_cmd.num_iovas = 0;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
+
+	/* Allowed intersects a reserved */
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ADD_RESERVED),
+			&test_cmd));
+	allow_cmd.num_iovas = 1;
+	ranges[0].start = self->base_iova;
+	ranges[0].last = ranges[0].start + PAGE_SIZE * 600;
+	EXPECT_ERRNO(EADDRINUSE,
+		     ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd));
+}
+
+TEST_F(iommufd_ioas, copy_area)
+{
+	struct iommu_ioas_copy copy_cmd = {
+		.size = sizeof(copy_cmd),
+		.flags = IOMMU_IOAS_MAP_FIXED_IOVA | IOMMU_IOAS_MAP_WRITEABLE,
+		.dst_ioas_id = self->ioas_id,
+		.src_ioas_id = self->ioas_id,
+		.length = PAGE_SIZE,
+	};
+
+	test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE, self->base_iova);
+
+	/* Copy inside a single IOAS */
+	copy_cmd.src_iova = self->base_iova;
+	copy_cmd.dst_iova = self->base_iova + PAGE_SIZE;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd));
+
+	/* Copy between IOAS's */
+	copy_cmd.src_iova = self->base_iova;
+	copy_cmd.dst_iova = 0;
+	test_ioctl_ioas_alloc(&copy_cmd.dst_ioas_id);
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd));
+}
+
+TEST_F(iommufd_ioas, iova_ranges)
+{
+	struct iommu_test_cmd test_cmd = {
+		.size = sizeof(test_cmd),
+		.op = IOMMU_TEST_OP_ADD_RESERVED,
+		.id = self->ioas_id,
+		.add_reserved = { .start = PAGE_SIZE, .length = PAGE_SIZE },
+	};
+	struct iommu_iova_range *ranges = buffer;
+	struct iommu_ioas_iova_ranges ranges_cmd = {
+		.size = sizeof(ranges_cmd),
+		.ioas_id = self->ioas_id,
+		.num_iovas = BUFFER_SIZE / sizeof(*ranges),
+		.allowed_iovas = (uintptr_t)ranges,
+	};
+
+	/* Range can be read */
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
+	EXPECT_EQ(1, ranges_cmd.num_iovas);
+	if (!self->stdev_id) {
+		EXPECT_EQ(0, ranges[0].start);
+		EXPECT_EQ(SIZE_MAX, ranges[0].last);
+		EXPECT_EQ(1, ranges_cmd.out_iova_alignment);
+	} else {
+		EXPECT_EQ(MOCK_APERTURE_START, ranges[0].start);
+		EXPECT_EQ(MOCK_APERTURE_LAST, ranges[0].last);
+		EXPECT_EQ(MOCK_PAGE_SIZE, ranges_cmd.out_iova_alignment);
+	}
+
+	/* Buffer too small */
+	memset(ranges, 0, BUFFER_SIZE);
+	ranges_cmd.num_iovas = 0;
+	EXPECT_ERRNO(EMSGSIZE,
+		     ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
+	EXPECT_EQ(1, ranges_cmd.num_iovas);
+	EXPECT_EQ(0, ranges[0].start);
+	EXPECT_EQ(0, ranges[0].last);
+
+	/* 2 ranges */
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ADD_RESERVED),
+			&test_cmd));
+	ranges_cmd.num_iovas = BUFFER_SIZE / sizeof(*ranges);
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
+	if (!self->stdev_id) {
+		EXPECT_EQ(2, ranges_cmd.num_iovas);
+		EXPECT_EQ(0, ranges[0].start);
+		EXPECT_EQ(PAGE_SIZE - 1, ranges[0].last);
+		EXPECT_EQ(PAGE_SIZE * 2, ranges[1].start);
+		EXPECT_EQ(SIZE_MAX, ranges[1].last);
+	} else {
+		EXPECT_EQ(1, ranges_cmd.num_iovas);
+		EXPECT_EQ(MOCK_APERTURE_START, ranges[0].start);
+		EXPECT_EQ(MOCK_APERTURE_LAST, ranges[0].last);
+	}
+
+	/* Buffer too small */
+	memset(ranges, 0, BUFFER_SIZE);
+	ranges_cmd.num_iovas = 1;
+	if (!self->stdev_id) {
+		EXPECT_ERRNO(EMSGSIZE, ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES,
+					     &ranges_cmd));
+		EXPECT_EQ(2, ranges_cmd.num_iovas);
+		EXPECT_EQ(0, ranges[0].start);
+		EXPECT_EQ(PAGE_SIZE - 1, ranges[0].last);
+	} else {
+		ASSERT_EQ(0,
+			  ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd));
+		EXPECT_EQ(1, ranges_cmd.num_iovas);
+		EXPECT_EQ(MOCK_APERTURE_START, ranges[0].start);
+		EXPECT_EQ(MOCK_APERTURE_LAST, ranges[0].last);
+	}
+	EXPECT_EQ(0, ranges[1].start);
+	EXPECT_EQ(0, ranges[1].last);
+}
+
+TEST_F(iommufd_ioas, access_domain_destory)
+{
+	struct iommu_test_cmd access_cmd = {
+		.size = sizeof(access_cmd),
+		.op = IOMMU_TEST_OP_ACCESS_PAGES,
+		.access_pages = { .iova = self->base_iova + PAGE_SIZE,
+				  .length = PAGE_SIZE},
+	};
+	size_t buf_size = 2 * HUGEPAGE_SIZE;
+	uint8_t *buf;
+
+	buf = mmap(0, buf_size, PROT_READ | PROT_WRITE,
+		   MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, -1,
+		   0);
+	ASSERT_NE(MAP_FAILED, buf);
+	test_ioctl_ioas_map_fixed(buf, buf_size, self->base_iova);
+
+	test_cmd_create_access(self->ioas_id, &access_cmd.id,
+			       MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
+	access_cmd.access_pages.uptr = (uintptr_t)buf + PAGE_SIZE;
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+			&access_cmd));
+
+	/* Causes a complicated unpin across a huge page boundary */
+	if (self->stdev_id)
+		test_ioctl_destroy(self->stdev_id);
+
+	test_cmd_destroy_access_pages(
+		access_cmd.id, access_cmd.access_pages.out_access_pages_id);
+	test_cmd_destroy_access(access_cmd.id);
+	ASSERT_EQ(0, munmap(buf, buf_size));
+}
+
+TEST_F(iommufd_ioas, access_pin)
+{
+	struct iommu_test_cmd access_cmd = {
+		.size = sizeof(access_cmd),
+		.op = IOMMU_TEST_OP_ACCESS_PAGES,
+		.access_pages = { .iova = MOCK_APERTURE_START,
+				  .length = BUFFER_SIZE,
+				  .uptr = (uintptr_t)buffer },
+	};
+	struct iommu_test_cmd check_map_cmd = {
+		.size = sizeof(check_map_cmd),
+		.op = IOMMU_TEST_OP_MD_CHECK_MAP,
+		.check_map = { .iova = MOCK_APERTURE_START,
+			       .length = BUFFER_SIZE,
+			       .uptr = (uintptr_t)buffer },
+	};
+	uint32_t access_pages_id;
+	unsigned int npages;
+
+	test_cmd_create_access(self->ioas_id, &access_cmd.id,
+			       MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
+
+	for (npages = 1; npages < BUFFER_SIZE / PAGE_SIZE; npages++) {
+		uint32_t mock_stdev_id;
+		uint32_t mock_hwpt_id;
+
+		access_cmd.access_pages.length = npages * PAGE_SIZE;
+
+		/* Single map/unmap */
+		test_ioctl_ioas_map_fixed(buffer, BUFFER_SIZE,
+					  MOCK_APERTURE_START);
+		ASSERT_EQ(0, ioctl(self->fd,
+				   _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+				   &access_cmd));
+		test_cmd_destroy_access_pages(
+			access_cmd.id,
+			access_cmd.access_pages.out_access_pages_id);
+
+		/* Double user */
+		ASSERT_EQ(0, ioctl(self->fd,
+				   _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+				   &access_cmd));
+		access_pages_id = access_cmd.access_pages.out_access_pages_id;
+		ASSERT_EQ(0, ioctl(self->fd,
+				   _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+				   &access_cmd));
+		test_cmd_destroy_access_pages(
+			access_cmd.id,
+			access_cmd.access_pages.out_access_pages_id);
+		test_cmd_destroy_access_pages(access_cmd.id, access_pages_id);
+
+		/* Add/remove a domain with a user */
+		ASSERT_EQ(0, ioctl(self->fd,
+				   _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+				   &access_cmd));
+		test_cmd_mock_domain(self->ioas_id, &mock_stdev_id,
+				     &mock_hwpt_id, NULL);
+		check_map_cmd.id = mock_hwpt_id;
+		ASSERT_EQ(0, ioctl(self->fd,
+				   _IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_MAP),
+				   &check_map_cmd));
+
+		test_ioctl_destroy(mock_stdev_id);
+		test_cmd_destroy_access_pages(
+			access_cmd.id,
+			access_cmd.access_pages.out_access_pages_id);
+
+		test_ioctl_ioas_unmap(MOCK_APERTURE_START, BUFFER_SIZE);
+	}
+	test_cmd_destroy_access(access_cmd.id);
+}
+
+TEST_F(iommufd_ioas, access_pin_unmap)
+{
+	struct iommu_test_cmd access_pages_cmd = {
+		.size = sizeof(access_pages_cmd),
+		.op = IOMMU_TEST_OP_ACCESS_PAGES,
+		.access_pages = { .iova = MOCK_APERTURE_START,
+				  .length = BUFFER_SIZE,
+				  .uptr = (uintptr_t)buffer },
+	};
+
+	test_cmd_create_access(self->ioas_id, &access_pages_cmd.id,
+			       MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
+	test_ioctl_ioas_map_fixed(buffer, BUFFER_SIZE, MOCK_APERTURE_START);
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+			&access_pages_cmd));
+
+	/* Trigger the unmap op */
+	test_ioctl_ioas_unmap(MOCK_APERTURE_START, BUFFER_SIZE);
+
+	/* kernel removed the item for us */
+	test_err_destroy_access_pages(
+		ENOENT, access_pages_cmd.id,
+		access_pages_cmd.access_pages.out_access_pages_id);
+}
+
+static void check_access_rw(struct __test_metadata *_metadata, int fd,
+			    unsigned int access_id, uint64_t iova,
+			    unsigned int def_flags)
+{
+	uint16_t tmp[32];
+	struct iommu_test_cmd access_cmd = {
+		.size = sizeof(access_cmd),
+		.op = IOMMU_TEST_OP_ACCESS_RW,
+		.id = access_id,
+		.access_rw = { .uptr = (uintptr_t)tmp },
+	};
+	uint16_t *buffer16 = buffer;
+	unsigned int i;
+	void *tmp2;
+
+	for (i = 0; i != BUFFER_SIZE / sizeof(*buffer16); i++)
+		buffer16[i] = rand();
+
+	for (access_cmd.access_rw.iova = iova + PAGE_SIZE - 50;
+	     access_cmd.access_rw.iova < iova + PAGE_SIZE + 50;
+	     access_cmd.access_rw.iova++) {
+		for (access_cmd.access_rw.length = 1;
+		     access_cmd.access_rw.length < sizeof(tmp);
+		     access_cmd.access_rw.length++) {
+			access_cmd.access_rw.flags = def_flags;
+			ASSERT_EQ(0, ioctl(fd,
+					   _IOMMU_TEST_CMD(
+						   IOMMU_TEST_OP_ACCESS_RW),
+					   &access_cmd));
+			ASSERT_EQ(0,
+				  memcmp(buffer + (access_cmd.access_rw.iova -
+						   iova),
+					 tmp, access_cmd.access_rw.length));
+
+			for (i = 0; i != ARRAY_SIZE(tmp); i++)
+				tmp[i] = rand();
+			access_cmd.access_rw.flags = def_flags |
+						     MOCK_ACCESS_RW_WRITE;
+			ASSERT_EQ(0, ioctl(fd,
+					   _IOMMU_TEST_CMD(
+						   IOMMU_TEST_OP_ACCESS_RW),
+					   &access_cmd));
+			ASSERT_EQ(0,
+				  memcmp(buffer + (access_cmd.access_rw.iova -
+						   iova),
+					 tmp, access_cmd.access_rw.length));
+		}
+	}
+
+	/* Multi-page test */
+	tmp2 = malloc(BUFFER_SIZE);
+	ASSERT_NE(NULL, tmp2);
+	access_cmd.access_rw.iova = iova;
+	access_cmd.access_rw.length = BUFFER_SIZE;
+	access_cmd.access_rw.flags = def_flags;
+	access_cmd.access_rw.uptr = (uintptr_t)tmp2;
+	ASSERT_EQ(0, ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			   &access_cmd));
+	ASSERT_EQ(0, memcmp(buffer, tmp2, access_cmd.access_rw.length));
+	free(tmp2);
+}
+
+TEST_F(iommufd_ioas, access_rw)
+{
+	__u32 access_id;
+	__u64 iova;
+
+	test_cmd_create_access(self->ioas_id, &access_id, 0);
+	test_ioctl_ioas_map(buffer, BUFFER_SIZE, &iova);
+	check_access_rw(_metadata, self->fd, access_id, iova, 0);
+	check_access_rw(_metadata, self->fd, access_id, iova,
+			MOCK_ACCESS_RW_SLOW_PATH);
+	test_ioctl_ioas_unmap(iova, BUFFER_SIZE);
+	test_cmd_destroy_access(access_id);
+}
+
+TEST_F(iommufd_ioas, access_rw_unaligned)
+{
+	__u32 access_id;
+	__u64 iova;
+
+	test_cmd_create_access(self->ioas_id, &access_id, 0);
+
+	/* Unaligned pages */
+	iova = self->base_iova + MOCK_PAGE_SIZE;
+	test_ioctl_ioas_map_fixed(buffer, BUFFER_SIZE, iova);
+	check_access_rw(_metadata, self->fd, access_id, iova, 0);
+	test_ioctl_ioas_unmap(iova, BUFFER_SIZE);
+	test_cmd_destroy_access(access_id);
+}
+
+TEST_F(iommufd_ioas, fork_gone)
+{
+	__u32 access_id;
+	pid_t child;
+
+	test_cmd_create_access(self->ioas_id, &access_id, 0);
+
+	/* Create a mapping with a different mm */
+	child = fork();
+	if (!child) {
+		test_ioctl_ioas_map_fixed(buffer, BUFFER_SIZE,
+					  MOCK_APERTURE_START);
+		exit(0);
+	}
+	ASSERT_NE(-1, child);
+	ASSERT_EQ(child, waitpid(child, NULL, 0));
+
+	if (self->stdev_id) {
+		/*
+		 * If a domain already existed then everything was pinned within
+		 * the fork, so this copies from one domain to another.
+		 */
+		test_cmd_mock_domain(self->ioas_id, NULL, NULL, NULL);
+		check_access_rw(_metadata, self->fd, access_id,
+				MOCK_APERTURE_START, 0);
+
+	} else {
+		/*
+		 * Otherwise we need to actually pin pages which can't happen
+		 * since the fork is gone.
+		 */
+		test_err_mock_domain(EFAULT, self->ioas_id, NULL, NULL);
+	}
+
+	test_cmd_destroy_access(access_id);
+}
+
+TEST_F(iommufd_ioas, fork_present)
+{
+	__u32 access_id;
+	int pipefds[2];
+	uint64_t tmp;
+	pid_t child;
+	int efd;
+
+	test_cmd_create_access(self->ioas_id, &access_id, 0);
+
+	ASSERT_EQ(0, pipe2(pipefds, O_CLOEXEC));
+	efd = eventfd(0, EFD_CLOEXEC);
+	ASSERT_NE(-1, efd);
+
+	/* Create a mapping with a different mm */
+	child = fork();
+	if (!child) {
+		__u64 iova;
+		uint64_t one = 1;
+
+		close(pipefds[1]);
+		test_ioctl_ioas_map_fixed(buffer, BUFFER_SIZE,
+					  MOCK_APERTURE_START);
+		if (write(efd, &one, sizeof(one)) != sizeof(one))
+			exit(100);
+		if (read(pipefds[0], &iova, 1) != 1)
+			exit(100);
+		exit(0);
+	}
+	close(pipefds[0]);
+	ASSERT_NE(-1, child);
+	ASSERT_EQ(8, read(efd, &tmp, sizeof(tmp)));
+
+	/* Read pages from the remote process */
+	test_cmd_mock_domain(self->ioas_id, NULL, NULL, NULL);
+	check_access_rw(_metadata, self->fd, access_id, MOCK_APERTURE_START, 0);
+
+	ASSERT_EQ(0, close(pipefds[1]));
+	ASSERT_EQ(child, waitpid(child, NULL, 0));
+
+	test_cmd_destroy_access(access_id);
+}
+
+TEST_F(iommufd_ioas, ioas_option_huge_pages)
+{
+	struct iommu_option cmd = {
+		.size = sizeof(cmd),
+		.option_id = IOMMU_OPTION_HUGE_PAGES,
+		.op = IOMMU_OPTION_OP_GET,
+		.val64 = 3,
+		.object_id = self->ioas_id,
+	};
+
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	ASSERT_EQ(1, cmd.val64);
+
+	cmd.op = IOMMU_OPTION_OP_SET;
+	cmd.val64 = 0;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	cmd.op = IOMMU_OPTION_OP_GET;
+	cmd.val64 = 3;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	ASSERT_EQ(0, cmd.val64);
+
+	cmd.op = IOMMU_OPTION_OP_SET;
+	cmd.val64 = 2;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	cmd.op = IOMMU_OPTION_OP_SET;
+	cmd.val64 = 1;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+}
+
+TEST_F(iommufd_ioas, ioas_iova_alloc)
+{
+	unsigned int length;
+	__u64 iova;
+
+	for (length = 1; length != PAGE_SIZE * 2; length++) {
+		if (variant->mock_domains && (length % MOCK_PAGE_SIZE)) {
+			test_err_ioctl_ioas_map(EINVAL, buffer, length, &iova);
+		} else {
+			test_ioctl_ioas_map(buffer, length, &iova);
+			test_ioctl_ioas_unmap(iova, length);
+		}
+	}
+}
+
+TEST_F(iommufd_ioas, ioas_align_change)
+{
+	struct iommu_option cmd = {
+		.size = sizeof(cmd),
+		.option_id = IOMMU_OPTION_HUGE_PAGES,
+		.op = IOMMU_OPTION_OP_SET,
+		.object_id = self->ioas_id,
+		/* 0 means everything must be aligned to PAGE_SIZE */
+		.val64 = 0,
+	};
+
+	/*
+	 * We cannot upgrade the alignment using OPTION_HUGE_PAGES when a domain
+	 * and map are present.
+	 */
+	if (variant->mock_domains)
+		return;
+
+	/*
+	 * We can upgrade to PAGE_SIZE alignment when things are aligned right
+	 */
+	test_ioctl_ioas_map_fixed(buffer, PAGE_SIZE, MOCK_APERTURE_START);
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	/* Misalignment is rejected at map time */
+	test_err_ioctl_ioas_map_fixed(EINVAL, buffer + MOCK_PAGE_SIZE,
+				      PAGE_SIZE,
+				      MOCK_APERTURE_START + PAGE_SIZE);
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	/* Reduce alignment */
+	cmd.val64 = 1;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	/* Confirm misalignment is rejected during alignment upgrade */
+	test_ioctl_ioas_map_fixed(buffer + MOCK_PAGE_SIZE, PAGE_SIZE,
+				  MOCK_APERTURE_START + PAGE_SIZE);
+	cmd.val64 = 0;
+	EXPECT_ERRNO(EADDRINUSE, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	test_ioctl_ioas_unmap(MOCK_APERTURE_START + PAGE_SIZE, PAGE_SIZE);
+	test_ioctl_ioas_unmap(MOCK_APERTURE_START, PAGE_SIZE);
+}
+
+TEST_F(iommufd_ioas, copy_sweep)
+{
+	struct iommu_ioas_copy copy_cmd = {
+		.size = sizeof(copy_cmd),
+		.flags = IOMMU_IOAS_MAP_FIXED_IOVA | IOMMU_IOAS_MAP_WRITEABLE,
+		.src_ioas_id = self->ioas_id,
+		.dst_iova = MOCK_APERTURE_START,
+		.length = MOCK_PAGE_SIZE,
+	};
+	unsigned int dst_ioas_id;
+	uint64_t last_iova;
+	uint64_t iova;
+
+	test_ioctl_ioas_alloc(&dst_ioas_id);
+	copy_cmd.dst_ioas_id = dst_ioas_id;
+
+	if (variant->mock_domains)
+		last_iova = MOCK_APERTURE_START + BUFFER_SIZE - 1;
+	else
+		last_iova = MOCK_APERTURE_START + BUFFER_SIZE - 2;
+
+	test_ioctl_ioas_map_fixed(buffer, last_iova - MOCK_APERTURE_START + 1,
+				  MOCK_APERTURE_START);
+
+	for (iova = MOCK_APERTURE_START - PAGE_SIZE; iova <= last_iova;
+	     iova += 511) {
+		copy_cmd.src_iova = iova;
+		if (iova < MOCK_APERTURE_START ||
+		    iova + copy_cmd.length - 1 > last_iova) {
+			EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_IOAS_COPY,
+						   &copy_cmd));
+		} else {
+			ASSERT_EQ(0,
+				  ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd));
+			test_ioctl_ioas_unmap_id(dst_ioas_id, copy_cmd.dst_iova,
+						 copy_cmd.length);
+		}
+	}
+
+	test_ioctl_destroy(dst_ioas_id);
+}
+
+TEST_F(iommufd_ioas, dmabuf_simple)
+{
+	size_t buf_size = PAGE_SIZE*4;
+	__u64 iova;
+	int dfd;
+
+	test_cmd_get_dmabuf(buf_size, &dfd);
+	test_err_ioctl_ioas_map_file(EINVAL, dfd, 0, 0, &iova);
+	test_err_ioctl_ioas_map_file(EINVAL, dfd, buf_size, buf_size, &iova);
+	test_err_ioctl_ioas_map_file(EINVAL, dfd, 0, buf_size + 1, &iova);
+	test_ioctl_ioas_map_file(dfd, 0, buf_size, &iova);
+
+	close(dfd);
+}
+
+TEST_F(iommufd_ioas, dmabuf_revoke)
+{
+	size_t buf_size = PAGE_SIZE*4;
+	__u32 hwpt_id;
+	__u64 iova;
+	__u64 iova2;
+	int dfd;
+
+	test_cmd_get_dmabuf(buf_size, &dfd);
+	test_ioctl_ioas_map_file(dfd, 0, buf_size, &iova);
+	test_cmd_revoke_dmabuf(dfd, true);
+
+	if (variant->mock_domains)
+		test_cmd_hwpt_alloc(self->device_id, self->ioas_id, 0,
+				    &hwpt_id);
+
+	test_err_ioctl_ioas_map_file(ENODEV, dfd, 0, buf_size, &iova2);
+
+	test_cmd_revoke_dmabuf(dfd, false);
+	test_ioctl_ioas_map_file(dfd, 0, buf_size, &iova2);
+
+	/* Restore the iova back */
+	test_ioctl_ioas_unmap(iova, buf_size);
+	test_ioctl_ioas_map_fixed_file(dfd, 0, buf_size, iova);
+
+	close(dfd);
+}
+
+FIXTURE(iommufd_mock_domain)
+{
+	int fd;
+	uint32_t ioas_id;
+	uint32_t hwpt_id;
+	uint32_t hwpt_ids[2];
+	uint32_t stdev_ids[2];
+	uint32_t idev_ids[2];
+	int mmap_flags;
+	size_t mmap_buf_size;
+};
+
+FIXTURE_VARIANT(iommufd_mock_domain)
+{
+	unsigned int mock_domains;
+	bool hugepages;
+	bool file;
+};
+
+FIXTURE_SETUP(iommufd_mock_domain)
+{
+	unsigned int i;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+	test_ioctl_ioas_alloc(&self->ioas_id);
+
+	ASSERT_GE(ARRAY_SIZE(self->hwpt_ids), variant->mock_domains);
+
+	for (i = 0; i != variant->mock_domains; i++) {
+		test_cmd_mock_domain(self->ioas_id, &self->stdev_ids[i],
+				     &self->hwpt_ids[i], &self->idev_ids[i]);
+		test_cmd_dev_check_cache_all(self->idev_ids[0],
+					     IOMMU_TEST_DEV_CACHE_DEFAULT);
+	}
+	self->hwpt_id = self->hwpt_ids[0];
+
+	self->mmap_flags = MAP_SHARED | MAP_ANONYMOUS;
+	self->mmap_buf_size = PAGE_SIZE * 8;
+	if (variant->hugepages) {
+		/*
+		 * MAP_POPULATE will cause the kernel to fail mmap if THPs are
+		 * not available.
+		 */
+		self->mmap_flags |= MAP_HUGETLB | MAP_POPULATE;
+		self->mmap_buf_size = HUGEPAGE_SIZE * 2;
+	}
+}
+
+FIXTURE_TEARDOWN(iommufd_mock_domain)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain)
+{
+	.mock_domains = 1,
+	.hugepages = false,
+	.file = false,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains)
+{
+	.mock_domains = 2,
+	.hugepages = false,
+	.file = false,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_hugepage)
+{
+	.mock_domains = 1,
+	.hugepages = true,
+	.file = false,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, two_domains_hugepage)
+{
+	.mock_domains = 2,
+	.hugepages = true,
+	.file = false,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_file)
+{
+	.mock_domains = 1,
+	.hugepages = false,
+	.file = true,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_mock_domain, one_domain_file_hugepage)
+{
+	.mock_domains = 1,
+	.hugepages = true,
+	.file = true,
+};
+
+
+/* Have the kernel check that the user pages made it to the iommu_domain */
+#define check_mock_iova(_ptr, _iova, _length)                                \
+	({                                                                   \
+		struct iommu_test_cmd check_map_cmd = {                      \
+			.size = sizeof(check_map_cmd),                       \
+			.op = IOMMU_TEST_OP_MD_CHECK_MAP,                    \
+			.id = self->hwpt_id,                                 \
+			.check_map = { .iova = _iova,                        \
+				       .length = _length,                    \
+				       .uptr = (uintptr_t)(_ptr) },          \
+		};                                                           \
+		ASSERT_EQ(0,                                                 \
+			  ioctl(self->fd,                                    \
+				_IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_MAP), \
+				&check_map_cmd));                            \
+		if (self->hwpt_ids[1]) {                                     \
+			check_map_cmd.id = self->hwpt_ids[1];                \
+			ASSERT_EQ(0,                                         \
+				  ioctl(self->fd,                            \
+					_IOMMU_TEST_CMD(                     \
+						IOMMU_TEST_OP_MD_CHECK_MAP), \
+					&check_map_cmd));                    \
+		}                                                            \
+	})
+
+static void
+test_basic_mmap(struct __test_metadata *_metadata,
+		struct _test_data_iommufd_mock_domain *self,
+		const struct _fixture_variant_iommufd_mock_domain *variant)
+{
+	size_t buf_size = self->mmap_buf_size;
+	uint8_t *buf;
+	__u64 iova;
+
+	/* Simple one page map */
+	test_ioctl_ioas_map(buffer, PAGE_SIZE, &iova);
+	check_mock_iova(buffer, iova, PAGE_SIZE);
+
+	buf = mmap(0, buf_size, PROT_READ | PROT_WRITE, self->mmap_flags, -1,
+		   0);
+	ASSERT_NE(MAP_FAILED, buf);
+
+	/* EFAULT half way through mapping */
+	ASSERT_EQ(0, munmap(buf + buf_size / 2, buf_size / 2));
+	test_err_ioctl_ioas_map(EFAULT, buf, buf_size, &iova);
+
+	/* EFAULT on first page */
+	ASSERT_EQ(0, munmap(buf, buf_size / 2));
+	test_err_ioctl_ioas_map(EFAULT, buf, buf_size, &iova);
+}
+
+static void
+test_basic_file(struct __test_metadata *_metadata,
+		struct _test_data_iommufd_mock_domain *self,
+		const struct _fixture_variant_iommufd_mock_domain *variant)
+{
+	size_t buf_size = self->mmap_buf_size;
+	uint8_t *buf;
+	__u64 iova;
+	int mfd_tmp;
+	int prot = PROT_READ | PROT_WRITE;
+
+	/* Simple one page map */
+	test_ioctl_ioas_map_file(mfd, 0, PAGE_SIZE, &iova);
+	check_mock_iova(mfd_buffer, iova, PAGE_SIZE);
+
+	buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd_tmp);
+	ASSERT_NE(MAP_FAILED, buf);
+
+	test_err_ioctl_ioas_map_file(EINVAL, mfd_tmp, 0, buf_size + 1, &iova);
+
+	ASSERT_EQ(0, ftruncate(mfd_tmp, 0));
+	test_err_ioctl_ioas_map_file(EINVAL, mfd_tmp, 0, buf_size, &iova);
+
+	close(mfd_tmp);
+}
+
+TEST_F(iommufd_mock_domain, basic)
+{
+	if (variant->file)
+		test_basic_file(_metadata, self, variant);
+	else
+		test_basic_mmap(_metadata, self, variant);
+}
+
+TEST_F(iommufd_mock_domain, ro_unshare)
+{
+	uint8_t *buf;
+	__u64 iova;
+	int fd;
+
+	fd = open("/proc/self/exe", O_RDONLY);
+	ASSERT_NE(-1, fd);
+
+	buf = mmap(0, PAGE_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	ASSERT_NE(MAP_FAILED, buf);
+	close(fd);
+
+	/*
+	 * There have been lots of changes to the "unshare" mechanism in
+	 * get_user_pages(), make sure it works right. The write to the page
+	 * after we map it for reading should not change the assigned PFN.
+	 */
+	ASSERT_EQ(0,
+		  _test_ioctl_ioas_map(self->fd, self->ioas_id, buf, PAGE_SIZE,
+				       &iova, IOMMU_IOAS_MAP_READABLE));
+	check_mock_iova(buf, iova, PAGE_SIZE);
+	memset(buf, 1, PAGE_SIZE);
+	check_mock_iova(buf, iova, PAGE_SIZE);
+	ASSERT_EQ(0, munmap(buf, PAGE_SIZE));
+}
+
+TEST_F(iommufd_mock_domain, all_aligns)
+{
+	size_t test_step = variant->hugepages ? (self->mmap_buf_size / 16) :
+						MOCK_PAGE_SIZE;
+	size_t buf_size = self->mmap_buf_size;
+	unsigned int start;
+	unsigned int end;
+	uint8_t *buf;
+	int prot = PROT_READ | PROT_WRITE;
+	int mfd = -1;
+
+	if (variant->file)
+		buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd);
+	else
+		buf = mmap(0, buf_size, prot, self->mmap_flags, -1, 0);
+	ASSERT_NE(MAP_FAILED, buf);
+	if (variant->file)
+		ASSERT_GT(mfd, 0);
+	check_refs(buf, buf_size, 0);
+
+	/*
+	 * Map every combination of page size and alignment within a big region,
+	 * less for hugepage case as it takes so long to finish.
+	 */
+	for (start = 0; start < buf_size; start += test_step) {
+		if (variant->hugepages)
+			end = buf_size;
+		else
+			end = start + MOCK_PAGE_SIZE;
+		for (; end < buf_size; end += MOCK_PAGE_SIZE) {
+			size_t length = end - start;
+			__u64 iova;
+
+			if (variant->file) {
+				test_ioctl_ioas_map_file(mfd, start, length,
+							 &iova);
+			} else {
+				test_ioctl_ioas_map(buf + start, length, &iova);
+			}
+			check_mock_iova(buf + start, iova, length);
+			check_refs(buf + start / PAGE_SIZE * PAGE_SIZE,
+				   end / PAGE_SIZE * PAGE_SIZE -
+					   start / PAGE_SIZE * PAGE_SIZE,
+				   1);
+
+			test_ioctl_ioas_unmap(iova, length);
+		}
+	}
+	check_refs(buf, buf_size, 0);
+	ASSERT_EQ(0, munmap(buf, buf_size));
+	if (variant->file)
+		close(mfd);
+}
+
+TEST_F(iommufd_mock_domain, all_aligns_copy)
+{
+	size_t test_step = variant->hugepages ? self->mmap_buf_size / 16 :
+						MOCK_PAGE_SIZE;
+	size_t buf_size = self->mmap_buf_size;
+	unsigned int start;
+	unsigned int end;
+	uint8_t *buf;
+	int prot = PROT_READ | PROT_WRITE;
+	int mfd = -1;
+
+	if (variant->file)
+		buf = memfd_mmap(buf_size, prot, MAP_SHARED, &mfd);
+	else
+		buf = mmap(0, buf_size, prot, self->mmap_flags, -1, 0);
+	ASSERT_NE(MAP_FAILED, buf);
+	if (variant->file)
+		ASSERT_GT(mfd, 0);
+	check_refs(buf, buf_size, 0);
+
+	/*
+	 * Map every combination of page size and alignment within a big region,
+	 * less for hugepage case as it takes so long to finish.
+	 */
+	for (start = 0; start < buf_size; start += test_step) {
+		if (variant->hugepages)
+			end = buf_size;
+		else
+			end = start + MOCK_PAGE_SIZE;
+		for (; end < buf_size; end += MOCK_PAGE_SIZE) {
+			size_t length = end - start;
+			unsigned int old_id;
+			uint32_t mock_stdev_id;
+			__u64 iova;
+
+			if (variant->file) {
+				test_ioctl_ioas_map_file(mfd, start, length,
+							 &iova);
+			} else {
+				test_ioctl_ioas_map(buf + start, length, &iova);
+			}
+
+			/* Add and destroy a domain while the area exists */
+			old_id = self->hwpt_ids[1];
+			test_cmd_mock_domain(self->ioas_id, &mock_stdev_id,
+					     &self->hwpt_ids[1], NULL);
+
+			check_mock_iova(buf + start, iova, length);
+			check_refs(buf + start / PAGE_SIZE * PAGE_SIZE,
+				   end / PAGE_SIZE * PAGE_SIZE -
+					   start / PAGE_SIZE * PAGE_SIZE,
+				   1);
+
+			test_ioctl_destroy(mock_stdev_id);
+			self->hwpt_ids[1] = old_id;
+
+			test_ioctl_ioas_unmap(iova, length);
+		}
+	}
+	check_refs(buf, buf_size, 0);
+	ASSERT_EQ(0, munmap(buf, buf_size));
+	if (variant->file)
+		close(mfd);
+}
+
+TEST_F(iommufd_mock_domain, user_copy)
+{
+	void *buf = variant->file ? mfd_buffer : buffer;
+	struct iommu_test_cmd access_cmd = {
+		.size = sizeof(access_cmd),
+		.op = IOMMU_TEST_OP_ACCESS_PAGES,
+		.access_pages = { .length = BUFFER_SIZE,
+				  .uptr = (uintptr_t)buf },
+	};
+	struct iommu_ioas_copy copy_cmd = {
+		.size = sizeof(copy_cmd),
+		.flags = IOMMU_IOAS_MAP_FIXED_IOVA | IOMMU_IOAS_MAP_WRITEABLE,
+		.dst_ioas_id = self->ioas_id,
+		.dst_iova = MOCK_APERTURE_START,
+		.length = BUFFER_SIZE,
+	};
+	struct iommu_ioas_unmap unmap_cmd = {
+		.size = sizeof(unmap_cmd),
+		.ioas_id = self->ioas_id,
+		.iova = MOCK_APERTURE_START,
+		.length = BUFFER_SIZE,
+	};
+	unsigned int new_ioas_id, ioas_id;
+
+	/* Pin the pages in an IOAS with no domains then copy to an IOAS with domains */
+	test_ioctl_ioas_alloc(&ioas_id);
+	if (variant->file) {
+		test_ioctl_ioas_map_id_file(ioas_id, mfd, 0, BUFFER_SIZE,
+					    &copy_cmd.src_iova);
+	} else {
+		test_ioctl_ioas_map_id(ioas_id, buf, BUFFER_SIZE,
+				       &copy_cmd.src_iova);
+	}
+	test_cmd_create_access(ioas_id, &access_cmd.id,
+			       MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES);
+
+	access_cmd.access_pages.iova = copy_cmd.src_iova;
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+			&access_cmd));
+	copy_cmd.src_ioas_id = ioas_id;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd));
+	check_mock_iova(buf, MOCK_APERTURE_START, BUFFER_SIZE);
+
+	/* Now replace the ioas with a new one */
+	test_ioctl_ioas_alloc(&new_ioas_id);
+	if (variant->file) {
+		test_ioctl_ioas_map_id_file(new_ioas_id, mfd, 0, BUFFER_SIZE,
+					    &copy_cmd.src_iova);
+	} else {
+		test_ioctl_ioas_map_id(new_ioas_id, buf, BUFFER_SIZE,
+				       &copy_cmd.src_iova);
+	}
+	test_cmd_access_replace_ioas(access_cmd.id, new_ioas_id);
+
+	/* Destroy the old ioas and cleanup copied mapping */
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_UNMAP, &unmap_cmd));
+	test_ioctl_destroy(ioas_id);
+
+	/* Then run the same test again with the new ioas */
+	access_cmd.access_pages.iova = copy_cmd.src_iova;
+	ASSERT_EQ(0,
+		  ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_PAGES),
+			&access_cmd));
+	copy_cmd.src_ioas_id = new_ioas_id;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd));
+	check_mock_iova(buf, MOCK_APERTURE_START, BUFFER_SIZE);
+
+	test_cmd_destroy_access_pages(
+		access_cmd.id, access_cmd.access_pages.out_access_pages_id);
+	test_cmd_destroy_access(access_cmd.id);
+
+	test_ioctl_destroy(new_ioas_id);
+}
+
+TEST_F(iommufd_mock_domain, replace)
+{
+	uint32_t ioas_id;
+
+	test_ioctl_ioas_alloc(&ioas_id);
+
+	test_cmd_mock_domain_replace(self->stdev_ids[0], ioas_id);
+
+	/*
+	 * Replacing the IOAS causes the prior HWPT to be deallocated, thus we
+	 * should get enoent when we try to use it.
+	 */
+	if (variant->mock_domains == 1)
+		test_err_mock_domain_replace(ENOENT, self->stdev_ids[0],
+					     self->hwpt_ids[0]);
+
+	test_cmd_mock_domain_replace(self->stdev_ids[0], ioas_id);
+	if (variant->mock_domains >= 2) {
+		test_cmd_mock_domain_replace(self->stdev_ids[0],
+					     self->hwpt_ids[1]);
+		test_cmd_mock_domain_replace(self->stdev_ids[0],
+					     self->hwpt_ids[1]);
+		test_cmd_mock_domain_replace(self->stdev_ids[0],
+					     self->hwpt_ids[0]);
+	}
+
+	test_cmd_mock_domain_replace(self->stdev_ids[0], self->ioas_id);
+	test_ioctl_destroy(ioas_id);
+}
+
+TEST_F(iommufd_mock_domain, alloc_hwpt)
+{
+	int i;
+
+	for (i = 0; i != variant->mock_domains; i++) {
+		uint32_t hwpt_id[2];
+		uint32_t stddev_id;
+
+		test_err_hwpt_alloc(EOPNOTSUPP,
+				    self->idev_ids[i], self->ioas_id,
+				    ~IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[0]);
+		test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id,
+				    0, &hwpt_id[0]);
+		test_cmd_hwpt_alloc(self->idev_ids[i], self->ioas_id,
+				    IOMMU_HWPT_ALLOC_NEST_PARENT, &hwpt_id[1]);
+
+		/* Do a hw_pagetable rotation test */
+		test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[0]);
+		EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[0]));
+		test_cmd_mock_domain_replace(self->stdev_ids[i], hwpt_id[1]);
+		EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hwpt_id[1]));
+		test_cmd_mock_domain_replace(self->stdev_ids[i], self->ioas_id);
+		test_ioctl_destroy(hwpt_id[1]);
+
+		test_cmd_mock_domain(hwpt_id[0], &stddev_id, NULL, NULL);
+		test_ioctl_destroy(stddev_id);
+		test_ioctl_destroy(hwpt_id[0]);
+	}
+}
+
+FIXTURE(iommufd_dirty_tracking)
+{
+	int fd;
+	uint32_t ioas_id;
+	uint32_t hwpt_id;
+	uint32_t stdev_id;
+	uint32_t idev_id;
+	unsigned long page_size;
+	unsigned long bitmap_size;
+	void *bitmap;
+	void *buffer;
+};
+
+FIXTURE_VARIANT(iommufd_dirty_tracking)
+{
+	unsigned long buffer_size;
+	bool hugepages;
+};
+
+FIXTURE_SETUP(iommufd_dirty_tracking)
+{
+	struct iommu_option cmd = {
+		.size = sizeof(cmd),
+		.option_id = IOMMU_OPTION_HUGE_PAGES,
+		.op = IOMMU_OPTION_OP_SET,
+		.val64 = 0,
+	};
+	size_t mmap_buffer_size;
+	unsigned long size;
+	int mmap_flags;
+	void *vrc;
+	int rc;
+
+	if (variant->buffer_size < MOCK_PAGE_SIZE) {
+		SKIP(return,
+		     "Skipping buffer_size=%lu, less than MOCK_PAGE_SIZE=%u",
+		     variant->buffer_size, MOCK_PAGE_SIZE);
+	}
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+
+	mmap_flags = MAP_SHARED | MAP_ANONYMOUS | MAP_FIXED;
+	mmap_buffer_size = variant->buffer_size;
+	if (variant->hugepages) {
+		/*
+		 * MAP_POPULATE will cause the kernel to fail mmap if THPs are
+		 * not available.
+		 */
+		mmap_flags |= MAP_HUGETLB | MAP_POPULATE;
+
+		/*
+		 * Allocation must be aligned to the HUGEPAGE_SIZE, because the
+		 * following mmap() will automatically align the length to be a
+		 * multiple of the underlying huge page size. Failing to do the
+		 * same at this allocation will result in a memory overwrite by
+		 * the mmap().
+		 */
+		if (mmap_buffer_size < HUGEPAGE_SIZE)
+			mmap_buffer_size = HUGEPAGE_SIZE;
+	}
+
+	rc = posix_memalign(&self->buffer, HUGEPAGE_SIZE, mmap_buffer_size);
+	if (rc || !self->buffer) {
+		SKIP(return, "Skipping buffer_size=%lu due to errno=%d",
+			   mmap_buffer_size, rc);
+	}
+	assert((uintptr_t)self->buffer % HUGEPAGE_SIZE == 0);
+	vrc = mmap(self->buffer, mmap_buffer_size, PROT_READ | PROT_WRITE,
+		   mmap_flags, -1, 0);
+	assert(vrc == self->buffer);
+
+	self->page_size = MOCK_PAGE_SIZE;
+	self->bitmap_size = variant->buffer_size / self->page_size;
+
+	/* Provision with an extra (PAGE_SIZE) for the unaligned case */
+	size = DIV_ROUND_UP(self->bitmap_size, BITS_PER_BYTE);
+	rc = posix_memalign(&self->bitmap, PAGE_SIZE, size + PAGE_SIZE);
+	assert(!rc);
+	assert(self->bitmap);
+	assert((uintptr_t)self->bitmap % PAGE_SIZE == 0);
+
+	test_ioctl_ioas_alloc(&self->ioas_id);
+
+	/*
+	 * For dirty testing it is important that the page size fed into
+	 * the iommu page tables matches the size the dirty logic
+	 * expects, or set_dirty can touch too much stuff.
+	 */
+	cmd.object_id = self->ioas_id;
+	if (!variant->hugepages)
+		ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+
+	test_cmd_mock_domain(self->ioas_id, &self->stdev_id, &self->hwpt_id,
+			     &self->idev_id);
+}
+
+FIXTURE_TEARDOWN(iommufd_dirty_tracking)
+{
+	free(self->buffer);
+	free(self->bitmap);
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty8k)
+{
+	/* half of an u8 index bitmap */
+	.buffer_size = 8UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty16k)
+{
+	/* one u8 index bitmap */
+	.buffer_size = 16UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty64k)
+{
+	/* one u32 index bitmap */
+	.buffer_size = 64UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty128k)
+{
+	/* one u64 index bitmap */
+	.buffer_size = 128UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty320k)
+{
+	/* two u64 index and trailing end bitmap */
+	.buffer_size = 320UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty64M)
+{
+	/* 4K bitmap (64M IOVA range) */
+	.buffer_size = 64UL * 1024UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty64M_huge)
+{
+	/* 4K bitmap (64M IOVA range) */
+	.buffer_size = 64UL * 1024UL * 1024UL,
+	.hugepages = true,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty128M)
+{
+	/* 8K bitmap (128M IOVA range) */
+	.buffer_size = 128UL * 1024UL * 1024UL,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_dirty_tracking, domain_dirty128M_huge)
+{
+	/* 8K bitmap (128M IOVA range) */
+	.buffer_size = 128UL * 1024UL * 1024UL,
+	.hugepages = true,
+};
+
+TEST_F(iommufd_dirty_tracking, enforce_dirty)
+{
+	uint32_t ioas_id, stddev_id, idev_id;
+	uint32_t hwpt_id, _hwpt_id;
+	uint32_t dev_flags;
+
+	/* Regular case */
+	dev_flags = MOCK_FLAGS_DEVICE_NO_DIRTY;
+	test_cmd_hwpt_alloc(self->idev_id, self->ioas_id,
+			    IOMMU_HWPT_ALLOC_DIRTY_TRACKING, &hwpt_id);
+	test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL);
+	test_err_mock_domain_flags(EINVAL, hwpt_id, dev_flags, &stddev_id,
+				   NULL);
+	test_ioctl_destroy(stddev_id);
+	test_ioctl_destroy(hwpt_id);
+
+	/* IOMMU device does not support dirty tracking */
+	test_ioctl_ioas_alloc(&ioas_id);
+	test_cmd_mock_domain_flags(ioas_id, dev_flags, &stddev_id, &_hwpt_id,
+				   &idev_id);
+	test_err_hwpt_alloc(EOPNOTSUPP, idev_id, ioas_id,
+			    IOMMU_HWPT_ALLOC_DIRTY_TRACKING, &hwpt_id);
+	test_ioctl_destroy(stddev_id);
+}
+
+TEST_F(iommufd_dirty_tracking, set_dirty_tracking)
+{
+	uint32_t stddev_id;
+	uint32_t hwpt_id;
+
+	test_cmd_hwpt_alloc(self->idev_id, self->ioas_id,
+			    IOMMU_HWPT_ALLOC_DIRTY_TRACKING, &hwpt_id);
+	test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL);
+	test_cmd_set_dirty_tracking(hwpt_id, true);
+	test_cmd_set_dirty_tracking(hwpt_id, false);
+
+	test_ioctl_destroy(stddev_id);
+	test_ioctl_destroy(hwpt_id);
+}
+
+TEST_F(iommufd_dirty_tracking, device_dirty_capability)
+{
+	uint32_t caps = 0;
+	uint32_t stddev_id;
+	uint32_t hwpt_id;
+
+	test_cmd_hwpt_alloc(self->idev_id, self->ioas_id, 0, &hwpt_id);
+	test_cmd_mock_domain(hwpt_id, &stddev_id, NULL, NULL);
+	test_cmd_get_hw_capabilities(self->idev_id, caps);
+	ASSERT_EQ(IOMMU_HW_CAP_DIRTY_TRACKING,
+		  caps & IOMMU_HW_CAP_DIRTY_TRACKING);
+
+	test_ioctl_destroy(stddev_id);
+	test_ioctl_destroy(hwpt_id);
+}
+
+TEST_F(iommufd_dirty_tracking, get_dirty_bitmap)
+{
+	uint32_t page_size = MOCK_PAGE_SIZE;
+	uint32_t ioas_id = self->ioas_id;
+	uint32_t hwpt_id;
+
+	if (variant->hugepages)
+		page_size = MOCK_HUGE_PAGE_SIZE;
+
+	test_ioctl_ioas_map_fixed_id(ioas_id, self->buffer,
+				     variant->buffer_size, MOCK_APERTURE_START);
+
+	if (variant->hugepages)
+		test_cmd_hwpt_alloc_iommupt(self->idev_id, ioas_id,
+					    IOMMU_HWPT_ALLOC_DIRTY_TRACKING,
+					    MOCK_IOMMUPT_HUGE, &hwpt_id);
+	else
+		test_cmd_hwpt_alloc_iommupt(self->idev_id, ioas_id,
+					    IOMMU_HWPT_ALLOC_DIRTY_TRACKING,
+					    MOCK_IOMMUPT_DEFAULT, &hwpt_id);
+
+	test_cmd_set_dirty_tracking(hwpt_id, true);
+
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap, self->bitmap_size, 0, _metadata);
+
+	/* PAGE_SIZE unaligned bitmap */
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap + MOCK_PAGE_SIZE,
+				self->bitmap_size, 0, _metadata);
+
+	/* u64 unaligned bitmap */
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap + 0xff1, self->bitmap_size, 0,
+				_metadata);
+
+	test_ioctl_destroy(hwpt_id);
+}
+
+TEST_F(iommufd_dirty_tracking, get_dirty_bitmap_no_clear)
+{
+	uint32_t page_size = MOCK_PAGE_SIZE;
+	uint32_t ioas_id = self->ioas_id;
+	uint32_t hwpt_id;
+
+	if (variant->hugepages)
+		page_size = MOCK_HUGE_PAGE_SIZE;
+
+	test_ioctl_ioas_map_fixed_id(ioas_id, self->buffer,
+				     variant->buffer_size, MOCK_APERTURE_START);
+
+
+	if (variant->hugepages)
+		test_cmd_hwpt_alloc_iommupt(self->idev_id, ioas_id,
+					    IOMMU_HWPT_ALLOC_DIRTY_TRACKING,
+					    MOCK_IOMMUPT_HUGE, &hwpt_id);
+	else
+		test_cmd_hwpt_alloc_iommupt(self->idev_id, ioas_id,
+					    IOMMU_HWPT_ALLOC_DIRTY_TRACKING,
+					    MOCK_IOMMUPT_DEFAULT, &hwpt_id);
+
+	test_cmd_set_dirty_tracking(hwpt_id, true);
+
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap, self->bitmap_size,
+				IOMMU_HWPT_GET_DIRTY_BITMAP_NO_CLEAR,
+				_metadata);
+
+	/* Unaligned bitmap */
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap + MOCK_PAGE_SIZE,
+				self->bitmap_size,
+				IOMMU_HWPT_GET_DIRTY_BITMAP_NO_CLEAR,
+				_metadata);
+
+	/* u64 unaligned bitmap */
+	test_mock_dirty_bitmaps(hwpt_id, variant->buffer_size,
+				MOCK_APERTURE_START, self->page_size, page_size,
+				self->bitmap + 0xff1, self->bitmap_size,
+				IOMMU_HWPT_GET_DIRTY_BITMAP_NO_CLEAR,
+				_metadata);
+
+	test_ioctl_destroy(hwpt_id);
+}
+
+/* VFIO compatibility IOCTLs */
+
+TEST_F(iommufd, simple_ioctls)
+{
+	ASSERT_EQ(VFIO_API_VERSION, ioctl(self->fd, VFIO_GET_API_VERSION));
+	ASSERT_EQ(1, ioctl(self->fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1v2_IOMMU));
+}
+
+TEST_F(iommufd, unmap_cmd)
+{
+	struct vfio_iommu_type1_dma_unmap unmap_cmd = {
+		.iova = MOCK_APERTURE_START,
+		.size = PAGE_SIZE,
+	};
+
+	unmap_cmd.argsz = 1;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+
+	unmap_cmd.argsz = sizeof(unmap_cmd);
+	unmap_cmd.flags = 1 << 31;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+
+	unmap_cmd.flags = 0;
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+}
+
+TEST_F(iommufd, map_cmd)
+{
+	struct vfio_iommu_type1_dma_map map_cmd = {
+		.iova = MOCK_APERTURE_START,
+		.size = PAGE_SIZE,
+		.vaddr = (__u64)buffer,
+	};
+
+	map_cmd.argsz = 1;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+
+	map_cmd.argsz = sizeof(map_cmd);
+	map_cmd.flags = 1 << 31;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+
+	/* Requires a domain to be attached */
+	map_cmd.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE;
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+}
+
+TEST_F(iommufd, info_cmd)
+{
+	struct vfio_iommu_type1_info info_cmd = {};
+
+	/* Invalid argsz */
+	info_cmd.argsz = 1;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_GET_INFO, &info_cmd));
+
+	info_cmd.argsz = sizeof(info_cmd);
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, VFIO_IOMMU_GET_INFO, &info_cmd));
+}
+
+TEST_F(iommufd, set_iommu_cmd)
+{
+	/* Requires a domain to be attached */
+	EXPECT_ERRNO(ENODEV,
+		     ioctl(self->fd, VFIO_SET_IOMMU, VFIO_TYPE1v2_IOMMU));
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU));
+}
+
+TEST_F(iommufd, vfio_ioas)
+{
+	struct iommu_vfio_ioas vfio_ioas_cmd = {
+		.size = sizeof(vfio_ioas_cmd),
+		.op = IOMMU_VFIO_IOAS_GET,
+	};
+	__u32 ioas_id;
+
+	/* ENODEV if there is no compat ioas */
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+
+	/* Invalid id for set */
+	vfio_ioas_cmd.op = IOMMU_VFIO_IOAS_SET;
+	EXPECT_ERRNO(ENOENT, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+
+	/* Valid id for set*/
+	test_ioctl_ioas_alloc(&ioas_id);
+	vfio_ioas_cmd.ioas_id = ioas_id;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+
+	/* Same id comes back from get */
+	vfio_ioas_cmd.op = IOMMU_VFIO_IOAS_GET;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+	ASSERT_EQ(ioas_id, vfio_ioas_cmd.ioas_id);
+
+	/* Clear works */
+	vfio_ioas_cmd.op = IOMMU_VFIO_IOAS_CLEAR;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+	vfio_ioas_cmd.op = IOMMU_VFIO_IOAS_GET;
+	EXPECT_ERRNO(ENODEV, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+}
+
+FIXTURE(vfio_compat_mock_domain)
+{
+	int fd;
+	uint32_t ioas_id;
+};
+
+FIXTURE_VARIANT(vfio_compat_mock_domain)
+{
+	unsigned int version;
+};
+
+FIXTURE_SETUP(vfio_compat_mock_domain)
+{
+	struct iommu_vfio_ioas vfio_ioas_cmd = {
+		.size = sizeof(vfio_ioas_cmd),
+		.op = IOMMU_VFIO_IOAS_SET,
+	};
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+
+	/* Create what VFIO would consider a group */
+	test_ioctl_ioas_alloc(&self->ioas_id);
+	test_cmd_mock_domain(self->ioas_id, NULL, NULL, NULL);
+
+	/* Attach it to the vfio compat */
+	vfio_ioas_cmd.ioas_id = self->ioas_id;
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_VFIO_IOAS, &vfio_ioas_cmd));
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_SET_IOMMU, variant->version));
+}
+
+FIXTURE_TEARDOWN(vfio_compat_mock_domain)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(vfio_compat_mock_domain, Ver1v2)
+{
+	.version = VFIO_TYPE1v2_IOMMU,
+};
+
+FIXTURE_VARIANT_ADD(vfio_compat_mock_domain, Ver1v0)
+{
+	.version = VFIO_TYPE1_IOMMU,
+};
+
+TEST_F(vfio_compat_mock_domain, simple_close)
+{
+}
+
+TEST_F(vfio_compat_mock_domain, option_huge_pages)
+{
+	struct iommu_option cmd = {
+		.size = sizeof(cmd),
+		.option_id = IOMMU_OPTION_HUGE_PAGES,
+		.op = IOMMU_OPTION_OP_GET,
+		.val64 = 3,
+		.object_id = self->ioas_id,
+	};
+
+	ASSERT_EQ(0, ioctl(self->fd, IOMMU_OPTION, &cmd));
+	if (variant->version == VFIO_TYPE1_IOMMU) {
+		ASSERT_EQ(0, cmd.val64);
+	} else {
+		ASSERT_EQ(1, cmd.val64);
+	}
+}
+
+/*
+ * Execute an ioctl command stored in buffer and check that the result does not
+ * overflow memory.
+ */
+static bool is_filled(const void *buf, uint8_t c, size_t len)
+{
+	const uint8_t *cbuf = buf;
+
+	for (; len; cbuf++, len--)
+		if (*cbuf != c)
+			return false;
+	return true;
+}
+
+#define ioctl_check_buf(fd, cmd)                                         \
+	({                                                               \
+		size_t _cmd_len = *(__u32 *)buffer;                      \
+									 \
+		memset(buffer + _cmd_len, 0xAA, BUFFER_SIZE - _cmd_len); \
+		ASSERT_EQ(0, ioctl(fd, cmd, buffer));                    \
+		ASSERT_EQ(true, is_filled(buffer + _cmd_len, 0xAA,       \
+					  BUFFER_SIZE - _cmd_len));      \
+	})
+
+static void check_vfio_info_cap_chain(struct __test_metadata *_metadata,
+				      struct vfio_iommu_type1_info *info_cmd)
+{
+	const struct vfio_info_cap_header *cap;
+
+	ASSERT_GE(info_cmd->argsz, info_cmd->cap_offset + sizeof(*cap));
+	cap = buffer + info_cmd->cap_offset;
+	while (true) {
+		size_t cap_size;
+
+		if (cap->next)
+			cap_size = (buffer + cap->next) - (void *)cap;
+		else
+			cap_size = (buffer + info_cmd->argsz) - (void *)cap;
+
+		switch (cap->id) {
+		case VFIO_IOMMU_TYPE1_INFO_CAP_IOVA_RANGE: {
+			struct vfio_iommu_type1_info_cap_iova_range *data =
+				(void *)cap;
+
+			ASSERT_EQ(1, data->header.version);
+			ASSERT_EQ(1, data->nr_iovas);
+			EXPECT_EQ(MOCK_APERTURE_START,
+				  data->iova_ranges[0].start);
+			EXPECT_EQ(MOCK_APERTURE_LAST, data->iova_ranges[0].end);
+			break;
+		}
+		case VFIO_IOMMU_TYPE1_INFO_DMA_AVAIL: {
+			struct vfio_iommu_type1_info_dma_avail *data =
+				(void *)cap;
+
+			ASSERT_EQ(1, data->header.version);
+			ASSERT_EQ(sizeof(*data), cap_size);
+			break;
+		}
+		default:
+			ASSERT_EQ(false, true);
+			break;
+		}
+		if (!cap->next)
+			break;
+
+		ASSERT_GE(info_cmd->argsz, cap->next + sizeof(*cap));
+		ASSERT_GE(buffer + cap->next, (void *)cap);
+		cap = buffer + cap->next;
+	}
+}
+
+TEST_F(vfio_compat_mock_domain, get_info)
+{
+	struct vfio_iommu_type1_info *info_cmd = buffer;
+	unsigned int i;
+	size_t caplen;
+
+	/* Pre-cap ABI */
+	*info_cmd = (struct vfio_iommu_type1_info){
+		.argsz = offsetof(struct vfio_iommu_type1_info, cap_offset),
+	};
+	ioctl_check_buf(self->fd, VFIO_IOMMU_GET_INFO);
+	ASSERT_NE(0, info_cmd->iova_pgsizes);
+	ASSERT_EQ(VFIO_IOMMU_INFO_PGSIZES | VFIO_IOMMU_INFO_CAPS,
+		  info_cmd->flags);
+
+	/* Read the cap chain size */
+	*info_cmd = (struct vfio_iommu_type1_info){
+		.argsz = sizeof(*info_cmd),
+	};
+	ioctl_check_buf(self->fd, VFIO_IOMMU_GET_INFO);
+	ASSERT_NE(0, info_cmd->iova_pgsizes);
+	ASSERT_EQ(VFIO_IOMMU_INFO_PGSIZES | VFIO_IOMMU_INFO_CAPS,
+		  info_cmd->flags);
+	ASSERT_EQ(0, info_cmd->cap_offset);
+	ASSERT_LT(sizeof(*info_cmd), info_cmd->argsz);
+
+	/* Read the caps, kernel should never create a corrupted caps */
+	caplen = info_cmd->argsz;
+	for (i = sizeof(*info_cmd); i < caplen; i++) {
+		*info_cmd = (struct vfio_iommu_type1_info){
+			.argsz = i,
+		};
+		ioctl_check_buf(self->fd, VFIO_IOMMU_GET_INFO);
+		ASSERT_EQ(VFIO_IOMMU_INFO_PGSIZES | VFIO_IOMMU_INFO_CAPS,
+			  info_cmd->flags);
+		if (!info_cmd->cap_offset)
+			continue;
+		check_vfio_info_cap_chain(_metadata, info_cmd);
+	}
+}
+
+static void shuffle_array(unsigned long *array, size_t nelms)
+{
+	unsigned int i;
+
+	/* Shuffle */
+	for (i = 0; i != nelms; i++) {
+		unsigned long tmp = array[i];
+		unsigned int other = rand() % (nelms - i);
+
+		array[i] = array[other];
+		array[other] = tmp;
+	}
+}
+
+TEST_F(vfio_compat_mock_domain, map)
+{
+	struct vfio_iommu_type1_dma_map map_cmd = {
+		.argsz = sizeof(map_cmd),
+		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+		.vaddr = (uintptr_t)buffer,
+		.size = BUFFER_SIZE,
+		.iova = MOCK_APERTURE_START,
+	};
+	struct vfio_iommu_type1_dma_unmap unmap_cmd = {
+		.argsz = sizeof(unmap_cmd),
+		.size = BUFFER_SIZE,
+		.iova = MOCK_APERTURE_START,
+	};
+	unsigned long pages_iova[BUFFER_SIZE / PAGE_SIZE];
+	unsigned int i;
+
+	/* Simple map/unmap */
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+	ASSERT_EQ(BUFFER_SIZE, unmap_cmd.size);
+	/* Unmap of empty is success */
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+
+	/* UNMAP_FLAG_ALL requires 0 iova/size */
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+	unmap_cmd.flags = VFIO_DMA_UNMAP_FLAG_ALL;
+	EXPECT_ERRNO(EINVAL, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+
+	unmap_cmd.iova = 0;
+	unmap_cmd.size = 0;
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+	ASSERT_EQ(BUFFER_SIZE, unmap_cmd.size);
+
+	/* Small pages */
+	for (i = 0; i != ARRAY_SIZE(pages_iova); i++) {
+		map_cmd.iova = pages_iova[i] =
+			MOCK_APERTURE_START + i * PAGE_SIZE;
+		map_cmd.vaddr = (uintptr_t)buffer + i * PAGE_SIZE;
+		map_cmd.size = PAGE_SIZE;
+		ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+	}
+	shuffle_array(pages_iova, ARRAY_SIZE(pages_iova));
+
+	unmap_cmd.flags = 0;
+	unmap_cmd.size = PAGE_SIZE;
+	for (i = 0; i != ARRAY_SIZE(pages_iova); i++) {
+		unmap_cmd.iova = pages_iova[i];
+		ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA, &unmap_cmd));
+	}
+}
+
+TEST_F(vfio_compat_mock_domain, huge_map)
+{
+	size_t buf_size = HUGEPAGE_SIZE * 2;
+	struct vfio_iommu_type1_dma_map map_cmd = {
+		.argsz = sizeof(map_cmd),
+		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+		.size = buf_size,
+		.iova = MOCK_APERTURE_START,
+	};
+	struct vfio_iommu_type1_dma_unmap unmap_cmd = {
+		.argsz = sizeof(unmap_cmd),
+	};
+	unsigned long pages_iova[16];
+	unsigned int i;
+	void *buf;
+
+	/* Test huge pages and splitting */
+	buf = mmap(0, buf_size, PROT_READ | PROT_WRITE,
+		   MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, -1,
+		   0);
+	ASSERT_NE(MAP_FAILED, buf);
+	map_cmd.vaddr = (uintptr_t)buf;
+	ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_MAP_DMA, &map_cmd));
+
+	unmap_cmd.size = buf_size / ARRAY_SIZE(pages_iova);
+	for (i = 0; i != ARRAY_SIZE(pages_iova); i++)
+		pages_iova[i] = MOCK_APERTURE_START + (i * unmap_cmd.size);
+	shuffle_array(pages_iova, ARRAY_SIZE(pages_iova));
+
+	/* type1 mode can cut up larger mappings, type1v2 always fails */
+	for (i = 0; i != ARRAY_SIZE(pages_iova); i++) {
+		unmap_cmd.iova = pages_iova[i];
+		unmap_cmd.size = buf_size / ARRAY_SIZE(pages_iova);
+		if (variant->version == VFIO_TYPE1_IOMMU) {
+			ASSERT_EQ(0, ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA,
+					   &unmap_cmd));
+		} else {
+			EXPECT_ERRNO(ENOENT,
+				     ioctl(self->fd, VFIO_IOMMU_UNMAP_DMA,
+					   &unmap_cmd));
+		}
+	}
+}
+
+FIXTURE(iommufd_viommu)
+{
+	int fd;
+	uint32_t ioas_id;
+	uint32_t stdev_id;
+	uint32_t hwpt_id;
+	uint32_t nested_hwpt_id;
+	uint32_t device_id;
+	uint32_t viommu_id;
+};
+
+FIXTURE_VARIANT(iommufd_viommu)
+{
+	unsigned int viommu;
+};
+
+FIXTURE_SETUP(iommufd_viommu)
+{
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+	test_ioctl_ioas_alloc(&self->ioas_id);
+	test_ioctl_set_default_memory_limit();
+
+	if (variant->viommu) {
+		struct iommu_hwpt_selftest data = {
+			.iotlb = IOMMU_TEST_IOTLB_DEFAULT,
+		};
+
+		test_cmd_mock_domain(self->ioas_id, &self->stdev_id, NULL,
+				     &self->device_id);
+
+		/* Allocate a nesting parent hwpt */
+		test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
+				    IOMMU_HWPT_ALLOC_NEST_PARENT,
+				    &self->hwpt_id);
+
+		/* Allocate a vIOMMU taking refcount of the parent hwpt */
+		test_cmd_viommu_alloc(self->device_id, self->hwpt_id,
+				      IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0,
+				      &self->viommu_id);
+
+		/* Allocate a regular nested hwpt */
+		test_cmd_hwpt_alloc_nested(self->device_id, self->viommu_id, 0,
+					   &self->nested_hwpt_id,
+					   IOMMU_HWPT_DATA_SELFTEST, &data,
+					   sizeof(data));
+	}
+}
+
+FIXTURE_TEARDOWN(iommufd_viommu)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_viommu, no_viommu)
+{
+	.viommu = 0,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_viommu, mock_viommu)
+{
+	.viommu = 1,
+};
+
+TEST_F(iommufd_viommu, viommu_auto_destroy)
+{
+}
+
+TEST_F(iommufd_viommu, viommu_negative_tests)
+{
+	uint32_t device_id = self->device_id;
+	uint32_t ioas_id = self->ioas_id;
+	uint32_t hwpt_id;
+
+	if (self->device_id) {
+		/* Negative test -- invalid hwpt (hwpt_id=0) */
+		test_err_viommu_alloc(ENOENT, device_id, 0,
+				      IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0,
+				      NULL);
+
+		/* Negative test -- not a nesting parent hwpt */
+		test_cmd_hwpt_alloc(device_id, ioas_id, 0, &hwpt_id);
+		test_err_viommu_alloc(EINVAL, device_id, hwpt_id,
+				      IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0,
+				      NULL);
+		test_ioctl_destroy(hwpt_id);
+
+		/* Negative test -- unsupported viommu type */
+		test_err_viommu_alloc(EOPNOTSUPP, device_id, self->hwpt_id,
+				      0xdead, NULL, 0, NULL);
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, self->hwpt_id));
+		EXPECT_ERRNO(EBUSY,
+			     _test_ioctl_destroy(self->fd, self->viommu_id));
+	} else {
+		test_err_viommu_alloc(ENOENT, self->device_id, self->hwpt_id,
+				      IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0,
+				      NULL);
+	}
+}
+
+TEST_F(iommufd_viommu, viommu_alloc_nested_iopf)
+{
+	struct iommu_hwpt_selftest data = {
+		.iotlb = IOMMU_TEST_IOTLB_DEFAULT,
+	};
+	uint32_t viommu_id = self->viommu_id;
+	uint32_t dev_id = self->device_id;
+	uint32_t iopf_hwpt_id;
+	uint32_t fault_id;
+	uint32_t fault_fd;
+	uint32_t vdev_id;
+
+	if (!dev_id)
+		SKIP(return, "Skipping test for variant no_viommu");
+
+	test_ioctl_fault_alloc(&fault_id, &fault_fd);
+	test_err_hwpt_alloc_iopf(ENOENT, dev_id, viommu_id, UINT32_MAX,
+				 IOMMU_HWPT_FAULT_ID_VALID, &iopf_hwpt_id,
+				 IOMMU_HWPT_DATA_SELFTEST, &data, sizeof(data));
+	test_err_hwpt_alloc_iopf(EOPNOTSUPP, dev_id, viommu_id, fault_id,
+				 IOMMU_HWPT_FAULT_ID_VALID | (1 << 31),
+				 &iopf_hwpt_id, IOMMU_HWPT_DATA_SELFTEST, &data,
+				 sizeof(data));
+	test_cmd_hwpt_alloc_iopf(dev_id, viommu_id, fault_id,
+				 IOMMU_HWPT_FAULT_ID_VALID, &iopf_hwpt_id,
+				 IOMMU_HWPT_DATA_SELFTEST, &data, sizeof(data));
+
+	/* Must allocate vdevice before attaching to a nested hwpt */
+	test_err_mock_domain_replace(ENOENT, self->stdev_id, iopf_hwpt_id);
+	test_cmd_vdevice_alloc(viommu_id, dev_id, 0x99, &vdev_id);
+	test_cmd_mock_domain_replace(self->stdev_id, iopf_hwpt_id);
+	EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, iopf_hwpt_id));
+	test_cmd_trigger_iopf(dev_id, fault_fd);
+
+	test_cmd_mock_domain_replace(self->stdev_id, self->ioas_id);
+	test_ioctl_destroy(iopf_hwpt_id);
+	close(fault_fd);
+	test_ioctl_destroy(fault_id);
+}
+
+TEST_F(iommufd_viommu, viommu_alloc_with_data)
+{
+	struct iommu_viommu_selftest data = {
+		.in_data = 0xbeef,
+	};
+	uint32_t *test;
+
+	if (!self->device_id)
+		SKIP(return, "Skipping test for variant no_viommu");
+
+	test_cmd_viommu_alloc(self->device_id, self->hwpt_id,
+			      IOMMU_VIOMMU_TYPE_SELFTEST, &data, sizeof(data),
+			      &self->viommu_id);
+	ASSERT_EQ(data.out_data, data.in_data);
+
+	/* Negative mmap tests -- offset and length cannot be changed */
+	test_err_mmap(ENXIO, data.out_mmap_length,
+		      data.out_mmap_offset + PAGE_SIZE);
+	test_err_mmap(ENXIO, data.out_mmap_length,
+		      data.out_mmap_offset + PAGE_SIZE * 2);
+	test_err_mmap(ENXIO, data.out_mmap_length / 2, data.out_mmap_offset);
+	test_err_mmap(ENXIO, data.out_mmap_length * 2, data.out_mmap_offset);
+
+	/* Now do a correct mmap for a loopback test */
+	test = mmap(NULL, data.out_mmap_length, PROT_READ | PROT_WRITE,
+		    MAP_SHARED, self->fd, data.out_mmap_offset);
+	ASSERT_NE(MAP_FAILED, test);
+	ASSERT_EQ(data.in_data, *test);
+
+	/* The owner of the mmap region should be blocked */
+	EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, self->viommu_id));
+	munmap(test, data.out_mmap_length);
+}
+
+TEST_F(iommufd_viommu, vdevice_alloc)
+{
+	uint32_t viommu_id = self->viommu_id;
+	uint32_t dev_id = self->device_id;
+	uint32_t vdev_id = 0;
+	uint32_t veventq_id;
+	uint32_t veventq_fd;
+	int prev_seq = -1;
+
+	if (dev_id) {
+		/* Must allocate vdevice before attaching to a nested hwpt */
+		test_err_mock_domain_replace(ENOENT, self->stdev_id,
+					     self->nested_hwpt_id);
+
+		/* Allocate a vEVENTQ with veventq_depth=2 */
+		test_cmd_veventq_alloc(viommu_id, IOMMU_VEVENTQ_TYPE_SELFTEST,
+				       &veventq_id, &veventq_fd);
+		test_err_veventq_alloc(EEXIST, viommu_id,
+				       IOMMU_VEVENTQ_TYPE_SELFTEST, NULL, NULL);
+		/* Set vdev_id to 0x99, unset it, and set to 0x88 */
+		test_cmd_vdevice_alloc(viommu_id, dev_id, 0x99, &vdev_id);
+		test_cmd_mock_domain_replace(self->stdev_id,
+					     self->nested_hwpt_id);
+		test_cmd_trigger_vevents(dev_id, 1);
+		test_cmd_read_vevents(veventq_fd, 1, 0x99, &prev_seq);
+		test_err_vdevice_alloc(EEXIST, viommu_id, dev_id, 0x99,
+				       &vdev_id);
+		test_cmd_mock_domain_replace(self->stdev_id, self->ioas_id);
+		test_ioctl_destroy(vdev_id);
+
+		/* Try again with 0x88 */
+		test_cmd_vdevice_alloc(viommu_id, dev_id, 0x88, &vdev_id);
+		test_cmd_mock_domain_replace(self->stdev_id,
+					     self->nested_hwpt_id);
+		/* Trigger an overflow with three events */
+		test_cmd_trigger_vevents(dev_id, 3);
+		test_err_read_vevents(EOVERFLOW, veventq_fd, 3, 0x88,
+				      &prev_seq);
+		/* Overflow must be gone after the previous reads */
+		test_cmd_trigger_vevents(dev_id, 1);
+		test_cmd_read_vevents(veventq_fd, 1, 0x88, &prev_seq);
+		close(veventq_fd);
+		test_cmd_mock_domain_replace(self->stdev_id, self->ioas_id);
+		test_ioctl_destroy(vdev_id);
+		test_ioctl_destroy(veventq_id);
+	} else {
+		test_err_vdevice_alloc(ENOENT, viommu_id, dev_id, 0x99, NULL);
+	}
+}
+
+TEST_F(iommufd_viommu, vdevice_cache)
+{
+	struct iommu_viommu_invalidate_selftest inv_reqs[2] = {};
+	uint32_t viommu_id = self->viommu_id;
+	uint32_t dev_id = self->device_id;
+	uint32_t vdev_id = 0;
+	uint32_t num_inv;
+
+	if (!dev_id)
+		SKIP(return, "Skipping test for variant no_viommu");
+
+	test_cmd_vdevice_alloc(viommu_id, dev_id, 0x99, &vdev_id);
+
+	test_cmd_dev_check_cache_all(dev_id, IOMMU_TEST_DEV_CACHE_DEFAULT);
+
+	/* Check data_type by passing zero-length array */
+	num_inv = 0;
+	test_cmd_viommu_invalidate(viommu_id, inv_reqs, sizeof(*inv_reqs),
+				   &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: Invalid data_type */
+	num_inv = 1;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST_INVALID,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: structure size sanity */
+	num_inv = 1;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs) + 1, &num_inv);
+	assert(!num_inv);
+
+	num_inv = 1;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST, 1,
+				   &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: invalid flag is passed */
+	num_inv = 1;
+	inv_reqs[0].flags = 0xffffffff;
+	inv_reqs[0].vdev_id = 0x99;
+	test_err_viommu_invalidate(EOPNOTSUPP, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: invalid data_uptr when array is not empty */
+	num_inv = 1;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	test_err_viommu_invalidate(EINVAL, viommu_id, NULL,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: invalid entry_len when array is not empty */
+	num_inv = 1;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST, 0,
+				   &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: invalid cache_id */
+	num_inv = 1;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].cache_id = MOCK_DEV_CACHE_ID_MAX + 1;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(!num_inv);
+
+	/* Negative test: invalid vdev_id */
+	num_inv = 1;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x9;
+	inv_reqs[0].cache_id = 0;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(!num_inv);
+
+	/*
+	 * Invalidate the 1st cache entry but fail the 2nd request
+	 * due to invalid flags configuration in the 2nd request.
+	 */
+	num_inv = 2;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].cache_id = 0;
+	inv_reqs[1].flags = 0xffffffff;
+	inv_reqs[1].vdev_id = 0x99;
+	inv_reqs[1].cache_id = 1;
+	test_err_viommu_invalidate(EOPNOTSUPP, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(num_inv == 1);
+	test_cmd_dev_check_cache(dev_id, 0, 0);
+	test_cmd_dev_check_cache(dev_id, 1, IOMMU_TEST_DEV_CACHE_DEFAULT);
+	test_cmd_dev_check_cache(dev_id, 2, IOMMU_TEST_DEV_CACHE_DEFAULT);
+	test_cmd_dev_check_cache(dev_id, 3, IOMMU_TEST_DEV_CACHE_DEFAULT);
+
+	/*
+	 * Invalidate the 1st cache entry but fail the 2nd request
+	 * due to invalid cache_id configuration in the 2nd request.
+	 */
+	num_inv = 2;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].cache_id = 0;
+	inv_reqs[1].flags = 0;
+	inv_reqs[1].vdev_id = 0x99;
+	inv_reqs[1].cache_id = MOCK_DEV_CACHE_ID_MAX + 1;
+	test_err_viommu_invalidate(EINVAL, viommu_id, inv_reqs,
+				   IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST,
+				   sizeof(*inv_reqs), &num_inv);
+	assert(num_inv == 1);
+	test_cmd_dev_check_cache(dev_id, 0, 0);
+	test_cmd_dev_check_cache(dev_id, 1, IOMMU_TEST_DEV_CACHE_DEFAULT);
+	test_cmd_dev_check_cache(dev_id, 2, IOMMU_TEST_DEV_CACHE_DEFAULT);
+	test_cmd_dev_check_cache(dev_id, 3, IOMMU_TEST_DEV_CACHE_DEFAULT);
+
+	/* Invalidate the 2nd cache entry and verify */
+	num_inv = 1;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].cache_id = 1;
+	test_cmd_viommu_invalidate(viommu_id, inv_reqs, sizeof(*inv_reqs),
+				   &num_inv);
+	assert(num_inv == 1);
+	test_cmd_dev_check_cache(dev_id, 0, 0);
+	test_cmd_dev_check_cache(dev_id, 1, 0);
+	test_cmd_dev_check_cache(dev_id, 2, IOMMU_TEST_DEV_CACHE_DEFAULT);
+	test_cmd_dev_check_cache(dev_id, 3, IOMMU_TEST_DEV_CACHE_DEFAULT);
+
+	/* Invalidate the 3rd and 4th cache entries and verify */
+	num_inv = 2;
+	inv_reqs[0].flags = 0;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].cache_id = 2;
+	inv_reqs[1].flags = 0;
+	inv_reqs[1].vdev_id = 0x99;
+	inv_reqs[1].cache_id = 3;
+	test_cmd_viommu_invalidate(viommu_id, inv_reqs, sizeof(*inv_reqs),
+				   &num_inv);
+	assert(num_inv == 2);
+	test_cmd_dev_check_cache_all(dev_id, 0);
+
+	/* Invalidate all cache entries for nested_dev_id[1] and verify */
+	num_inv = 1;
+	inv_reqs[0].vdev_id = 0x99;
+	inv_reqs[0].flags = IOMMU_TEST_INVALIDATE_FLAG_ALL;
+	test_cmd_viommu_invalidate(viommu_id, inv_reqs, sizeof(*inv_reqs),
+				   &num_inv);
+	assert(num_inv == 1);
+	test_cmd_dev_check_cache_all(dev_id, 0);
+	test_ioctl_destroy(vdev_id);
+}
+
+TEST_F(iommufd_viommu, hw_queue)
+{
+	__u64 iova = MOCK_APERTURE_START, iova2;
+	uint32_t viommu_id = self->viommu_id;
+	uint32_t hw_queue_id[2];
+
+	if (!viommu_id)
+		SKIP(return, "Skipping test for variant no_viommu");
+
+	/* Fail IOMMU_HW_QUEUE_TYPE_DEFAULT */
+	test_err_hw_queue_alloc(EOPNOTSUPP, viommu_id,
+				IOMMU_HW_QUEUE_TYPE_DEFAULT, 0, iova, PAGE_SIZE,
+				&hw_queue_id[0]);
+	/* Fail queue addr and length */
+	test_err_hw_queue_alloc(EINVAL, viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST,
+				0, iova, 0, &hw_queue_id[0]);
+	test_err_hw_queue_alloc(EOVERFLOW, viommu_id,
+				IOMMU_HW_QUEUE_TYPE_SELFTEST, 0, ~(uint64_t)0,
+				PAGE_SIZE, &hw_queue_id[0]);
+	/* Fail missing iova */
+	test_err_hw_queue_alloc(ENOENT, viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST,
+				0, iova, PAGE_SIZE, &hw_queue_id[0]);
+
+	/* Map iova */
+	test_ioctl_ioas_map(buffer, PAGE_SIZE, &iova);
+	test_ioctl_ioas_map(buffer + PAGE_SIZE, PAGE_SIZE, &iova2);
+
+	/* Fail index=1 and =MAX; must start from index=0 */
+	test_err_hw_queue_alloc(EIO, viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST, 1,
+				iova, PAGE_SIZE, &hw_queue_id[0]);
+	test_err_hw_queue_alloc(EINVAL, viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST,
+				IOMMU_TEST_HW_QUEUE_MAX, iova, PAGE_SIZE,
+				&hw_queue_id[0]);
+
+	/* Allocate index=0, declare ownership of the iova */
+	test_cmd_hw_queue_alloc(viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST, 0,
+				iova, PAGE_SIZE, &hw_queue_id[0]);
+	/* Fail duplicated index */
+	test_err_hw_queue_alloc(EEXIST, viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST,
+				0, iova, PAGE_SIZE, &hw_queue_id[0]);
+	/* Fail unmap, due to iova ownership */
+	test_err_ioctl_ioas_unmap(EBUSY, iova, PAGE_SIZE);
+	/* The 2nd page is not pinned, so it can be unmmap */
+	test_ioctl_ioas_unmap(iova2, PAGE_SIZE);
+
+	/* Allocate index=1, with an unaligned case */
+	test_cmd_hw_queue_alloc(viommu_id, IOMMU_HW_QUEUE_TYPE_SELFTEST, 1,
+				iova + PAGE_SIZE / 2, PAGE_SIZE / 2,
+				&hw_queue_id[1]);
+	/* Fail to destroy, due to dependency */
+	EXPECT_ERRNO(EBUSY, _test_ioctl_destroy(self->fd, hw_queue_id[0]));
+
+	/* Destroy in descending order */
+	test_ioctl_destroy(hw_queue_id[1]);
+	test_ioctl_destroy(hw_queue_id[0]);
+	/* Now it can unmap the first page */
+	test_ioctl_ioas_unmap(iova, PAGE_SIZE);
+}
+
+TEST_F(iommufd_viommu, vdevice_tombstone)
+{
+	uint32_t viommu_id = self->viommu_id;
+	uint32_t dev_id = self->device_id;
+	uint32_t vdev_id = 0;
+
+	if (!dev_id)
+		SKIP(return, "Skipping test for variant no_viommu");
+
+	test_cmd_vdevice_alloc(viommu_id, dev_id, 0x99, &vdev_id);
+	test_ioctl_destroy(self->stdev_id);
+	EXPECT_ERRNO(ENOENT, _test_ioctl_destroy(self->fd, vdev_id));
+}
+
+FIXTURE(iommufd_device_pasid)
+{
+	int fd;
+	uint32_t ioas_id;
+	uint32_t hwpt_id;
+	uint32_t stdev_id;
+	uint32_t device_id;
+	uint32_t no_pasid_stdev_id;
+	uint32_t no_pasid_device_id;
+};
+
+FIXTURE_VARIANT(iommufd_device_pasid)
+{
+	bool pasid_capable;
+};
+
+FIXTURE_SETUP(iommufd_device_pasid)
+{
+	self->fd = open("/dev/iommu", O_RDWR);
+	ASSERT_NE(-1, self->fd);
+	test_ioctl_ioas_alloc(&self->ioas_id);
+
+	test_cmd_mock_domain_flags(self->ioas_id,
+				   MOCK_FLAGS_DEVICE_PASID,
+				   &self->stdev_id, &self->hwpt_id,
+				   &self->device_id);
+	if (!variant->pasid_capable)
+		test_cmd_mock_domain_flags(self->ioas_id, 0,
+					   &self->no_pasid_stdev_id, NULL,
+					   &self->no_pasid_device_id);
+}
+
+FIXTURE_TEARDOWN(iommufd_device_pasid)
+{
+	teardown_iommufd(self->fd, _metadata);
+}
+
+FIXTURE_VARIANT_ADD(iommufd_device_pasid, no_pasid)
+{
+	.pasid_capable = false,
+};
+
+FIXTURE_VARIANT_ADD(iommufd_device_pasid, has_pasid)
+{
+	.pasid_capable = true,
+};
+
+TEST_F(iommufd_device_pasid, pasid_attach)
+{
+	struct iommu_hwpt_selftest data = {
+		.iotlb =  IOMMU_TEST_IOTLB_DEFAULT,
+	};
+	uint32_t nested_hwpt_id[3] = {};
+	uint32_t parent_hwpt_id = 0;
+	uint32_t fault_id, fault_fd;
+	uint32_t s2_hwpt_id = 0;
+	uint32_t iopf_hwpt_id;
+	uint32_t pasid = 100;
+	uint32_t viommu_id;
+
+	/*
+	 * Negative, detach pasid without attaching, this is not expected.
+	 * But it should not result in failure anyway.
+	 */
+	test_cmd_pasid_detach(pasid);
+
+	/* Allocate two nested hwpts sharing one common parent hwpt */
+	test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
+			    IOMMU_HWPT_ALLOC_NEST_PARENT,
+			    &parent_hwpt_id);
+	test_cmd_hwpt_alloc_nested(self->device_id, parent_hwpt_id,
+				   IOMMU_HWPT_ALLOC_PASID,
+				   &nested_hwpt_id[0],
+				   IOMMU_HWPT_DATA_SELFTEST,
+				   &data, sizeof(data));
+	test_cmd_hwpt_alloc_nested(self->device_id, parent_hwpt_id,
+				   IOMMU_HWPT_ALLOC_PASID,
+				   &nested_hwpt_id[1],
+				   IOMMU_HWPT_DATA_SELFTEST,
+				   &data, sizeof(data));
+
+	/* Fault related preparation */
+	test_ioctl_fault_alloc(&fault_id, &fault_fd);
+	test_cmd_hwpt_alloc_iopf(self->device_id, parent_hwpt_id, fault_id,
+				 IOMMU_HWPT_FAULT_ID_VALID | IOMMU_HWPT_ALLOC_PASID,
+				 &iopf_hwpt_id,
+				 IOMMU_HWPT_DATA_SELFTEST, &data,
+				 sizeof(data));
+
+	/* Allocate a regular nested hwpt based on viommu */
+	test_cmd_viommu_alloc(self->device_id, parent_hwpt_id,
+			      IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0, &viommu_id);
+	test_cmd_hwpt_alloc_nested(self->device_id, viommu_id,
+				   IOMMU_HWPT_ALLOC_PASID,
+				   &nested_hwpt_id[2],
+				   IOMMU_HWPT_DATA_SELFTEST, &data,
+				   sizeof(data));
+
+	test_cmd_hwpt_alloc(self->device_id, self->ioas_id,
+			    IOMMU_HWPT_ALLOC_PASID,
+			    &s2_hwpt_id);
+
+	/* Attach RID to non-pasid compat domain, */
+	test_cmd_mock_domain_replace(self->stdev_id, parent_hwpt_id);
+	/* then attach to pasid should fail */
+	test_err_pasid_attach(EINVAL, pasid, s2_hwpt_id);
+
+	/* Attach RID to pasid compat domain, */
+	test_cmd_mock_domain_replace(self->stdev_id, s2_hwpt_id);
+	/* then attach to pasid should succeed, */
+	test_cmd_pasid_attach(pasid, nested_hwpt_id[0]);
+	/* but attach RID to non-pasid compat domain should fail now. */
+	test_err_mock_domain_replace(EINVAL, self->stdev_id, parent_hwpt_id);
+	/*
+	 * Detach hwpt from pasid 100, and check if the pasid 100
+	 * has null domain.
+	 */
+	test_cmd_pasid_detach(pasid);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, 0));
+	/* RID is attached to pasid-comapt domain, pasid path is not used */
+
+	if (!variant->pasid_capable) {
+		/*
+		 * PASID-compatible domain can be used by non-PASID-capable
+		 * device.
+		 */
+		test_cmd_mock_domain_replace(self->no_pasid_stdev_id, nested_hwpt_id[0]);
+		test_cmd_mock_domain_replace(self->no_pasid_stdev_id, self->ioas_id);
+		/*
+		 * Attach hwpt to pasid 100 of non-PASID-capable device,
+		 * should fail, no matter domain is pasid-comapt or not.
+		 */
+		EXPECT_ERRNO(EINVAL,
+			     _test_cmd_pasid_attach(self->fd, self->no_pasid_stdev_id,
+						    pasid, parent_hwpt_id));
+		EXPECT_ERRNO(EINVAL,
+			     _test_cmd_pasid_attach(self->fd, self->no_pasid_stdev_id,
+						    pasid, s2_hwpt_id));
+	}
+
+	/*
+	 * Attach non pasid compat hwpt to pasid-capable device, should
+	 * fail, and have null domain.
+	 */
+	test_err_pasid_attach(EINVAL, pasid, parent_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, 0));
+
+	/*
+	 * Attach ioas to pasid 100, should fail, domain should
+	 * be null.
+	 */
+	test_err_pasid_attach(EINVAL, pasid, self->ioas_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, 0));
+
+	/*
+	 * Attach the s2_hwpt to pasid 100, should succeed, domain should
+	 * be valid.
+	 */
+	test_cmd_pasid_attach(pasid, s2_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/*
+	 * Try attach pasid 100 with another hwpt, should FAIL
+	 * as attach does not allow overwrite, use REPLACE instead.
+	 */
+	test_err_pasid_attach(EBUSY, pasid, nested_hwpt_id[0]);
+
+	/*
+	 * Detach hwpt from pasid 100 for next test, should succeed,
+	 * and have null domain.
+	 */
+	test_cmd_pasid_detach(pasid);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, 0));
+
+	/*
+	 * Attach nested hwpt to pasid 100, should succeed, domain
+	 * should be valid.
+	 */
+	test_cmd_pasid_attach(pasid, nested_hwpt_id[0]);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, nested_hwpt_id[0]));
+
+	/* Attach to pasid 100 which has been attached, should fail. */
+	test_err_pasid_attach(EBUSY, pasid, nested_hwpt_id[0]);
+
+	/* cleanup pasid 100 */
+	test_cmd_pasid_detach(pasid);
+
+	/* Replace tests */
+
+	pasid = 200;
+	/*
+	 * Replace pasid 200 without attaching it, should fail
+	 * with -EINVAL.
+	 */
+	test_err_pasid_replace(EINVAL, pasid, s2_hwpt_id);
+
+	/*
+	 * Attach the s2 hwpt to pasid 200, should succeed, domain should
+	 * be valid.
+	 */
+	test_cmd_pasid_attach(pasid, s2_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/*
+	 * Replace pasid 200 with self->ioas_id, should fail
+	 * and domain should be the prior s2 hwpt.
+	 */
+	test_err_pasid_replace(EINVAL, pasid, self->ioas_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/*
+	 * Replace a nested hwpt for pasid 200, should succeed,
+	 * and have valid domain.
+	 */
+	test_cmd_pasid_replace(pasid, nested_hwpt_id[0]);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, nested_hwpt_id[0]));
+
+	/*
+	 * Replace with another nested hwpt for pasid 200, should
+	 * succeed, and have valid domain.
+	 */
+	test_cmd_pasid_replace(pasid, nested_hwpt_id[1]);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, nested_hwpt_id[1]));
+
+	/* cleanup pasid 200 */
+	test_cmd_pasid_detach(pasid);
+
+	/* Negative Tests for pasid replace, use pasid 1024 */
+
+	/*
+	 * Attach the s2 hwpt to pasid 1024, should succeed, domain should
+	 * be valid.
+	 */
+	pasid = 1024;
+	test_cmd_pasid_attach(pasid, s2_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/*
+	 * Replace pasid 1024 with nested_hwpt_id[0], should fail,
+	 * but have the old valid domain. This is a designed
+	 * negative case. Normally, this shall succeed.
+	 */
+	test_err_pasid_replace(ENOMEM, pasid, nested_hwpt_id[0]);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/* cleanup pasid 1024 */
+	test_cmd_pasid_detach(pasid);
+
+	/* Attach to iopf-capable hwpt */
+
+	/*
+	 * Attach an iopf hwpt to pasid 2048, should succeed, domain should
+	 * be valid.
+	 */
+	pasid = 2048;
+	test_cmd_pasid_attach(pasid, iopf_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, iopf_hwpt_id));
+
+	test_cmd_trigger_iopf_pasid(self->device_id, pasid, fault_fd);
+
+	/*
+	 * Replace with s2_hwpt_id for pasid 2048, should
+	 * succeed, and have valid domain.
+	 */
+	test_cmd_pasid_replace(pasid, s2_hwpt_id);
+	ASSERT_EQ(0,
+		  test_cmd_pasid_check_hwpt(self->fd, self->stdev_id,
+					    pasid, s2_hwpt_id));
+
+	/* cleanup pasid 2048 */
+	test_cmd_pasid_detach(pasid);
+
+	test_ioctl_destroy(iopf_hwpt_id);
+	close(fault_fd);
+	test_ioctl_destroy(fault_id);
+
+	/* Detach the s2_hwpt_id from RID */
+	test_cmd_mock_domain_replace(self->stdev_id, self->ioas_id);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/iommu/iommufd_fail_nth.c b/tools/testing/selftests/iommu/iommufd_fail_nth.c
new file mode 100644
index 000000000000..45c14323a618
--- /dev/null
+++ b/tools/testing/selftests/iommu/iommufd_fail_nth.c
@@ -0,0 +1,748 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES
+ *
+ * These tests are "kernel integrity" tests. They are looking for kernel
+ * WARN/OOPS/kasn/etc splats triggered by kernel sanitizers & debugging
+ * features. It does not attempt to verify that the system calls are doing what
+ * they are supposed to do.
+ *
+ * The basic philosophy is to run a sequence of calls that will succeed and then
+ * sweep every failure injection point on that call chain to look for
+ * interesting things in error handling.
+ *
+ * This test is best run with:
+ *  echo 1 > /proc/sys/kernel/panic_on_warn
+ * If something is actually going wrong.
+ */
+#include <fcntl.h>
+#include <dirent.h>
+
+#define __EXPORTED_HEADERS__
+#include <linux/vfio.h>
+
+#include "iommufd_utils.h"
+
+static bool have_fault_injection;
+
+static int writeat(int dfd, const char *fn, const char *val)
+{
+	size_t val_len = strlen(val);
+	ssize_t res;
+	int fd;
+
+	fd = openat(dfd, fn, O_WRONLY);
+	if (fd == -1)
+		return -1;
+	res = write(fd, val, val_len);
+	assert(res == val_len);
+	close(fd);
+	return 0;
+}
+
+static __attribute__((constructor)) void setup_buffer(void)
+{
+	PAGE_SIZE = sysconf(_SC_PAGE_SIZE);
+
+	BUFFER_SIZE = 2*1024*1024;
+
+	buffer = mmap(0, BUFFER_SIZE, PROT_READ | PROT_WRITE,
+		      MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+
+	mfd_buffer = memfd_mmap(BUFFER_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
+				&mfd);
+}
+
+/*
+ * This sets up fail_injection in a way that is useful for this test.
+ * It does not attempt to restore things back to how they were.
+ */
+static __attribute__((constructor)) void setup_fault_injection(void)
+{
+	DIR *debugfs = opendir("/sys/kernel/debug/");
+	struct dirent *dent;
+
+	if (!debugfs)
+		return;
+
+	/* Allow any allocation call to be fault injected */
+	if (writeat(dirfd(debugfs), "failslab/ignore-gfp-wait", "N"))
+		return;
+	writeat(dirfd(debugfs), "fail_page_alloc/ignore-gfp-wait", "N");
+	writeat(dirfd(debugfs), "fail_page_alloc/ignore-gfp-highmem", "N");
+
+	while ((dent = readdir(debugfs))) {
+		char fn[300];
+
+		if (strncmp(dent->d_name, "fail", 4) != 0)
+			continue;
+
+		/* We are looking for kernel splats, quiet down the log */
+		snprintf(fn, sizeof(fn), "%s/verbose", dent->d_name);
+		writeat(dirfd(debugfs), fn, "0");
+	}
+	closedir(debugfs);
+	have_fault_injection = true;
+}
+
+struct fail_nth_state {
+	int proc_fd;
+	unsigned int iteration;
+};
+
+static void fail_nth_first(struct __test_metadata *_metadata,
+			   struct fail_nth_state *nth_state)
+{
+	char buf[300];
+
+	snprintf(buf, sizeof(buf), "/proc/self/task/%u/fail-nth", getpid());
+	nth_state->proc_fd = open(buf, O_RDWR);
+	ASSERT_NE(-1, nth_state->proc_fd);
+}
+
+static bool fail_nth_next(struct __test_metadata *_metadata,
+			  struct fail_nth_state *nth_state,
+			  int test_result)
+{
+	static const char disable_nth[] = "0";
+	char buf[300];
+
+	/*
+	 * This is just an arbitrary limit based on the current kernel
+	 * situation. Changes in the kernel can dramatically change the number of
+	 * required fault injection sites, so if this hits it doesn't
+	 * necessarily mean a test failure, just that the limit has to be made
+	 * bigger.
+	 */
+	ASSERT_GT(1000, nth_state->iteration);
+	if (nth_state->iteration != 0) {
+		ssize_t res;
+		ssize_t res2;
+
+		buf[0] = 0;
+		/*
+		 * Annoyingly disabling the nth can also fail. This means
+		 * the test passed without triggering failure
+		 */
+		res = pread(nth_state->proc_fd, buf, sizeof(buf), 0);
+		if (res == -1 && errno == EFAULT) {
+			buf[0] = '1';
+			buf[1] = '\n';
+			res = 2;
+		}
+
+		res2 = pwrite(nth_state->proc_fd, disable_nth,
+			      ARRAY_SIZE(disable_nth) - 1, 0);
+		if (res2 == -1 && errno == EFAULT) {
+			res2 = pwrite(nth_state->proc_fd, disable_nth,
+				      ARRAY_SIZE(disable_nth) - 1, 0);
+			buf[0] = '1';
+			buf[1] = '\n';
+		}
+		ASSERT_EQ(ARRAY_SIZE(disable_nth) - 1, res2);
+
+		/* printf("  nth %u result=%d nth=%u\n", nth_state->iteration,
+		       test_result, atoi(buf)); */
+		fflush(stdout);
+		ASSERT_LT(1, res);
+		if (res != 2 || buf[0] != '0' || buf[1] != '\n')
+			return false;
+	} else {
+		/* printf("  nth %u result=%d\n", nth_state->iteration,
+		       test_result); */
+	}
+	nth_state->iteration++;
+	return true;
+}
+
+/*
+ * This is called during the test to start failure injection. It allows the test
+ * to do some setup that has already been swept and thus reduce the required
+ * iterations.
+ */
+void __fail_nth_enable(struct __test_metadata *_metadata,
+		       struct fail_nth_state *nth_state)
+{
+	char buf[300];
+	size_t len;
+
+	if (!nth_state->iteration)
+		return;
+
+	len = snprintf(buf, sizeof(buf), "%u", nth_state->iteration);
+	ASSERT_EQ(len, pwrite(nth_state->proc_fd, buf, len, 0));
+}
+#define fail_nth_enable() __fail_nth_enable(_metadata, _nth_state)
+
+#define TEST_FAIL_NTH(fixture_name, name)                                           \
+	static int test_nth_##name(struct __test_metadata *_metadata,               \
+				   FIXTURE_DATA(fixture_name) *self,                \
+				   const FIXTURE_VARIANT(fixture_name)              \
+					   *variant,                                \
+				   struct fail_nth_state *_nth_state);              \
+	TEST_F(fixture_name, name)                                                  \
+	{                                                                           \
+		struct fail_nth_state nth_state = {};                               \
+		int test_result = 0;                                                \
+										    \
+		if (!have_fault_injection)                                          \
+			SKIP(return,                                                \
+				   "fault injection is not enabled in the kernel"); \
+		fail_nth_first(_metadata, &nth_state);                              \
+		ASSERT_EQ(0, test_nth_##name(_metadata, self, variant,              \
+					     &nth_state));                          \
+		while (fail_nth_next(_metadata, &nth_state, test_result)) {         \
+			fixture_name##_teardown(_metadata, self, variant);          \
+			fixture_name##_setup(_metadata, self, variant);             \
+			test_result = test_nth_##name(_metadata, self,              \
+						      variant, &nth_state);         \
+		};                                                                  \
+		ASSERT_EQ(0, test_result);                                          \
+	}                                                                           \
+	static int test_nth_##name(                                                 \
+		struct __test_metadata __attribute__((unused)) *_metadata,          \
+		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self,           \
+		const FIXTURE_VARIANT(fixture_name) __attribute__((unused))         \
+			*variant,                                                   \
+		struct fail_nth_state *_nth_state)
+
+FIXTURE(basic_fail_nth)
+{
+	int fd;
+	uint32_t access_id;
+	uint32_t stdev_id;
+	uint32_t pasid;
+};
+
+FIXTURE_SETUP(basic_fail_nth)
+{
+	self->fd = -1;
+	self->access_id = 0;
+	self->stdev_id = 0;
+	self->pasid = 0; //test should use a non-zero value
+}
+
+FIXTURE_TEARDOWN(basic_fail_nth)
+{
+	int rc;
+
+	if (self->access_id) {
+		/* The access FD holds the iommufd open until it closes */
+		rc = _test_cmd_destroy_access(self->access_id);
+		assert(rc == 0);
+	}
+	if (self->pasid && self->stdev_id)
+		_test_cmd_pasid_detach(self->fd, self->stdev_id, self->pasid);
+	teardown_iommufd(self->fd, _metadata);
+}
+
+/* Cover ioas.c */
+TEST_FAIL_NTH(basic_fail_nth, basic)
+{
+	struct iommu_iova_range ranges[10];
+	uint32_t ioas_id;
+	__u64 iova;
+
+	fail_nth_enable();
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	{
+		struct iommu_ioas_iova_ranges ranges_cmd = {
+			.size = sizeof(ranges_cmd),
+			.num_iovas = ARRAY_SIZE(ranges),
+			.ioas_id = ioas_id,
+			.allowed_iovas = (uintptr_t)ranges,
+		};
+		if (ioctl(self->fd, IOMMU_IOAS_IOVA_RANGES, &ranges_cmd))
+			return -1;
+	}
+
+	{
+		struct iommu_ioas_allow_iovas allow_cmd = {
+			.size = sizeof(allow_cmd),
+			.ioas_id = ioas_id,
+			.num_iovas = 1,
+			.allowed_iovas = (uintptr_t)ranges,
+		};
+
+		ranges[0].start = 16*1024;
+		ranges[0].last = BUFFER_SIZE + 16 * 1024 * 600 - 1;
+		if (ioctl(self->fd, IOMMU_IOAS_ALLOW_IOVAS, &allow_cmd))
+			return -1;
+	}
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, BUFFER_SIZE, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	{
+		struct iommu_ioas_copy copy_cmd = {
+			.size = sizeof(copy_cmd),
+			.flags = IOMMU_IOAS_MAP_WRITEABLE |
+				 IOMMU_IOAS_MAP_READABLE,
+			.dst_ioas_id = ioas_id,
+			.src_ioas_id = ioas_id,
+			.src_iova = iova,
+			.length = sizeof(ranges),
+		};
+
+		if (ioctl(self->fd, IOMMU_IOAS_COPY, &copy_cmd))
+			return -1;
+	}
+
+	if (_test_ioctl_ioas_unmap(self->fd, ioas_id, iova, BUFFER_SIZE,
+				   NULL))
+		return -1;
+	/* Failure path of no IOVA to unmap */
+	_test_ioctl_ioas_unmap(self->fd, ioas_id, iova, BUFFER_SIZE, NULL);
+	return 0;
+}
+
+/* iopt_area_fill_domains() and iopt_area_fill_domain() */
+TEST_FAIL_NTH(basic_fail_nth, map_domain)
+{
+	uint32_t ioas_id;
+	__u32 stdev_id;
+	__u32 hwpt_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	fail_nth_enable();
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, 262144, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	if (_test_ioctl_destroy(self->fd, stdev_id))
+		return -1;
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+	return 0;
+}
+
+/* iopt_area_fill_domains() and iopt_area_fill_domain() */
+TEST_FAIL_NTH(basic_fail_nth, map_file_domain)
+{
+	uint32_t ioas_id;
+	__u32 stdev_id;
+	__u32 hwpt_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	fail_nth_enable();
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+
+	if (_test_ioctl_ioas_map_file(self->fd, ioas_id, mfd, 0, 262144, &iova,
+				      IOMMU_IOAS_MAP_WRITEABLE |
+					      IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	if (_test_ioctl_destroy(self->fd, stdev_id))
+		return -1;
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+	return 0;
+}
+
+TEST_FAIL_NTH(basic_fail_nth, map_two_domains)
+{
+	uint32_t ioas_id;
+	__u32 stdev_id2;
+	__u32 stdev_id;
+	__u32 hwpt_id2;
+	__u32 hwpt_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+
+	fail_nth_enable();
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id2, &hwpt_id2,
+				  NULL))
+		return -1;
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, 262144, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	if (_test_ioctl_destroy(self->fd, stdev_id))
+		return -1;
+
+	if (_test_ioctl_destroy(self->fd, stdev_id2))
+		return -1;
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id2, &hwpt_id2,
+				  NULL))
+		return -1;
+	return 0;
+}
+
+TEST_FAIL_NTH(basic_fail_nth, access_rw)
+{
+	uint64_t tmp_big[4096];
+	uint32_t ioas_id;
+	uint16_t tmp[32];
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, 262144, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	fail_nth_enable();
+
+	if (_test_cmd_create_access(self->fd, ioas_id, &self->access_id, 0))
+		return -1;
+
+	{
+		struct iommu_test_cmd access_cmd = {
+			.size = sizeof(access_cmd),
+			.op = IOMMU_TEST_OP_ACCESS_RW,
+			.id = self->access_id,
+			.access_rw = { .iova = iova,
+				       .length = sizeof(tmp),
+				       .uptr = (uintptr_t)tmp },
+		};
+
+		// READ
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+
+		access_cmd.access_rw.flags = MOCK_ACCESS_RW_WRITE;
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+
+		access_cmd.access_rw.flags = MOCK_ACCESS_RW_SLOW_PATH;
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+		access_cmd.access_rw.flags = MOCK_ACCESS_RW_SLOW_PATH |
+					     MOCK_ACCESS_RW_WRITE;
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+	}
+
+	{
+		struct iommu_test_cmd access_cmd = {
+			.size = sizeof(access_cmd),
+			.op = IOMMU_TEST_OP_ACCESS_RW,
+			.id = self->access_id,
+			.access_rw = { .iova = iova,
+				       .flags = MOCK_ACCESS_RW_SLOW_PATH,
+				       .length = sizeof(tmp_big),
+				       .uptr = (uintptr_t)tmp_big },
+		};
+
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+	}
+	if (_test_cmd_destroy_access(self->access_id))
+		return -1;
+	self->access_id = 0;
+	return 0;
+}
+
+/* pages.c access functions */
+TEST_FAIL_NTH(basic_fail_nth, access_pin)
+{
+	uint32_t access_pages_id;
+	uint32_t ioas_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, BUFFER_SIZE, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	if (_test_cmd_create_access(self->fd, ioas_id, &self->access_id,
+				    MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES))
+		return -1;
+
+	fail_nth_enable();
+
+	{
+		struct iommu_test_cmd access_cmd = {
+			.size = sizeof(access_cmd),
+			.op = IOMMU_TEST_OP_ACCESS_PAGES,
+			.id = self->access_id,
+			.access_pages = { .iova = iova,
+					  .length = BUFFER_SIZE,
+					  .uptr = (uintptr_t)buffer },
+		};
+
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+		access_pages_id = access_cmd.access_pages.out_access_pages_id;
+	}
+
+	if (_test_cmd_destroy_access_pages(self->fd, self->access_id,
+					   access_pages_id))
+		return -1;
+
+	if (_test_cmd_destroy_access(self->access_id))
+		return -1;
+	self->access_id = 0;
+	return 0;
+}
+
+/* iopt_pages_fill_xarray() */
+TEST_FAIL_NTH(basic_fail_nth, access_pin_domain)
+{
+	uint32_t access_pages_id;
+	uint32_t ioas_id;
+	__u32 stdev_id;
+	__u32 hwpt_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_set_temp_memory_limit(self->fd, 32))
+		return -1;
+
+	if (_test_cmd_mock_domain(self->fd, ioas_id, &stdev_id, &hwpt_id, NULL))
+		return -1;
+
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, BUFFER_SIZE, &iova,
+				 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	if (_test_cmd_create_access(self->fd, ioas_id, &self->access_id,
+				    MOCK_FLAGS_ACCESS_CREATE_NEEDS_PIN_PAGES))
+		return -1;
+
+	fail_nth_enable();
+
+	{
+		struct iommu_test_cmd access_cmd = {
+			.size = sizeof(access_cmd),
+			.op = IOMMU_TEST_OP_ACCESS_PAGES,
+			.id = self->access_id,
+			.access_pages = { .iova = iova,
+					  .length = BUFFER_SIZE,
+					  .uptr = (uintptr_t)buffer },
+		};
+
+		if (ioctl(self->fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_ACCESS_RW),
+			  &access_cmd))
+			return -1;
+		access_pages_id = access_cmd.access_pages.out_access_pages_id;
+	}
+
+	if (_test_cmd_destroy_access_pages(self->fd, self->access_id,
+					   access_pages_id))
+		return -1;
+
+	if (_test_cmd_destroy_access(self->access_id))
+		return -1;
+	self->access_id = 0;
+
+	if (_test_ioctl_destroy(self->fd, stdev_id))
+		return -1;
+	return 0;
+}
+
+/* device.c */
+TEST_FAIL_NTH(basic_fail_nth, device)
+{
+	struct iommu_hwpt_selftest data = {
+		.iotlb = IOMMU_TEST_IOTLB_DEFAULT,
+	};
+	struct iommu_test_hw_info info;
+	uint32_t fault_id, fault_fd;
+	uint32_t veventq_id, veventq_fd;
+	uint32_t fault_hwpt_id;
+	uint32_t test_hwpt_id;
+	uint32_t ioas_id;
+	uint32_t ioas_id2;
+	uint32_t idev_id;
+	uint32_t hwpt_id;
+	uint32_t viommu_id;
+	uint32_t hw_queue_id;
+	uint32_t vdev_id;
+	__u64 iova;
+
+	self->fd = open("/dev/iommu", O_RDWR);
+	if (self->fd == -1)
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id))
+		return -1;
+
+	if (_test_ioctl_ioas_alloc(self->fd, &ioas_id2))
+		return -1;
+
+	iova = MOCK_APERTURE_START;
+	if (_test_ioctl_ioas_map(self->fd, ioas_id, buffer, PAGE_SIZE, &iova,
+				 IOMMU_IOAS_MAP_FIXED_IOVA |
+					 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+	if (_test_ioctl_ioas_map(self->fd, ioas_id2, buffer, PAGE_SIZE, &iova,
+				 IOMMU_IOAS_MAP_FIXED_IOVA |
+					 IOMMU_IOAS_MAP_WRITEABLE |
+					 IOMMU_IOAS_MAP_READABLE))
+		return -1;
+
+	fail_nth_enable();
+
+	if (_test_cmd_mock_domain_flags(self->fd, ioas_id,
+					MOCK_FLAGS_DEVICE_PASID,
+					&self->stdev_id, NULL, &idev_id))
+		return -1;
+
+	if (_test_cmd_get_hw_info(self->fd, idev_id, IOMMU_HW_INFO_TYPE_DEFAULT,
+				  &info, sizeof(info), NULL, NULL))
+		return -1;
+
+	if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0,
+				 IOMMU_HWPT_ALLOC_PASID, &hwpt_id,
+				 IOMMU_HWPT_DATA_NONE, 0, 0))
+		return -1;
+
+	if (_test_cmd_mock_domain_replace(self->fd, self->stdev_id, ioas_id2, NULL))
+		return -1;
+
+	if (_test_cmd_mock_domain_replace(self->fd, self->stdev_id, hwpt_id, NULL))
+		return -1;
+
+	if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0,
+				 IOMMU_HWPT_ALLOC_NEST_PARENT |
+						IOMMU_HWPT_ALLOC_PASID,
+				 &hwpt_id,
+				 IOMMU_HWPT_DATA_NONE, 0, 0))
+		return -1;
+
+	if (_test_cmd_viommu_alloc(self->fd, idev_id, hwpt_id, 0,
+				   IOMMU_VIOMMU_TYPE_SELFTEST, NULL, 0,
+				   &viommu_id))
+		return -1;
+
+	if (_test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id, 0, &vdev_id))
+		return -1;
+
+	if (_test_cmd_hw_queue_alloc(self->fd, viommu_id,
+				     IOMMU_HW_QUEUE_TYPE_SELFTEST, 0, iova,
+				     PAGE_SIZE, &hw_queue_id))
+		return -1;
+
+	if (_test_ioctl_fault_alloc(self->fd, &fault_id, &fault_fd))
+		return -1;
+	close(fault_fd);
+
+	if (_test_cmd_hwpt_alloc(self->fd, idev_id, hwpt_id, fault_id,
+				 IOMMU_HWPT_FAULT_ID_VALID, &fault_hwpt_id,
+				 IOMMU_HWPT_DATA_SELFTEST, &data, sizeof(data)))
+		return -1;
+
+	if (_test_cmd_veventq_alloc(self->fd, viommu_id,
+				    IOMMU_VEVENTQ_TYPE_SELFTEST, &veventq_id,
+				    &veventq_fd))
+		return -1;
+	close(veventq_fd);
+
+	if (_test_cmd_hwpt_alloc(self->fd, idev_id, ioas_id, 0,
+				 IOMMU_HWPT_ALLOC_PASID,
+				 &test_hwpt_id,
+				 IOMMU_HWPT_DATA_NONE, 0, 0))
+		return -1;
+
+	/* Tests for pasid attach/replace/detach */
+
+	self->pasid = 200;
+
+	if (_test_cmd_pasid_attach(self->fd, self->stdev_id,
+				   self->pasid, hwpt_id)) {
+		self->pasid = 0;
+		return -1;
+	}
+
+	if (_test_cmd_pasid_replace(self->fd, self->stdev_id,
+				    self->pasid, test_hwpt_id))
+		return -1;
+
+	if (_test_cmd_pasid_detach(self->fd, self->stdev_id, self->pasid))
+		return -1;
+
+	self->pasid = 0;
+
+	return 0;
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h
new file mode 100644
index 000000000000..5502751d500c
--- /dev/null
+++ b/tools/testing/selftests/iommu/iommufd_utils.h
@@ -0,0 +1,1259 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES */
+#ifndef __SELFTEST_IOMMUFD_UTILS
+#define __SELFTEST_IOMMUFD_UTILS
+
+#include <unistd.h>
+#include <stddef.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <stdint.h>
+#include <assert.h>
+#include <poll.h>
+
+#include "kselftest_harness.h"
+#include "../../../../drivers/iommu/iommufd/iommufd_test.h"
+
+/* Hack to make assertions more readable */
+#define _IOMMU_TEST_CMD(x) IOMMU_TEST_CMD
+
+/* Imported from include/asm-generic/bitops/generic-non-atomic.h */
+#define BITS_PER_BYTE 8
+#define BITS_PER_LONG __BITS_PER_LONG
+#define BIT_MASK(nr) (1UL << ((nr) % __BITS_PER_LONG))
+#define BIT_WORD(nr) ((nr) / __BITS_PER_LONG)
+
+enum {
+	IOPT_PAGES_ACCOUNT_NONE = 0,
+	IOPT_PAGES_ACCOUNT_USER = 1,
+	IOPT_PAGES_ACCOUNT_MM = 2,
+};
+
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+
+static inline void set_bit(unsigned int nr, unsigned long *addr)
+{
+	unsigned long mask = BIT_MASK(nr);
+	unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr);
+
+	*p |= mask;
+}
+
+static inline bool test_bit(unsigned int nr, unsigned long *addr)
+{
+	return 1UL & (addr[BIT_WORD(nr)] >> (nr & (BITS_PER_LONG - 1)));
+}
+
+static void *buffer;
+static unsigned long BUFFER_SIZE;
+
+static void *mfd_buffer;
+static int mfd;
+
+static unsigned long PAGE_SIZE;
+
+#define sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
+#define offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER) + sizeof_field(TYPE, MEMBER))
+
+#define test_err_mmap(_errno, length, offset)                                 \
+	EXPECT_ERRNO(_errno, (long)mmap(NULL, length, PROT_READ | PROT_WRITE, \
+					MAP_SHARED, self->fd, offset))
+
+static inline void *memfd_mmap(size_t length, int prot, int flags, int *mfd_p)
+{
+	int mfd_flags = (flags & MAP_HUGETLB) ? MFD_HUGETLB : 0;
+	int mfd = memfd_create("buffer", mfd_flags);
+	void *buf = MAP_FAILED;
+
+	if (mfd <= 0)
+		return MAP_FAILED;
+	if (ftruncate(mfd, length))
+		goto out;
+	*mfd_p = mfd;
+	buf = mmap(0, length, prot, flags, mfd, 0);
+out:
+	if (buf == MAP_FAILED)
+		close(mfd);
+	return buf;
+}
+
+/*
+ * Have the kernel check the refcount on pages. I don't know why a freshly
+ * mmap'd anon non-compound page starts out with a ref of 3
+ */
+#define check_refs(_ptr, _length, _refs)                                      \
+	({                                                                    \
+		struct iommu_test_cmd test_cmd = {                            \
+			.size = sizeof(test_cmd),                             \
+			.op = IOMMU_TEST_OP_MD_CHECK_REFS,                    \
+			.check_refs = { .length = _length,                    \
+					.uptr = (uintptr_t)(_ptr),            \
+					.refs = _refs },                      \
+		};                                                            \
+		ASSERT_EQ(0,                                                  \
+			  ioctl(self->fd,                                     \
+				_IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_REFS), \
+				&test_cmd));                                  \
+	})
+
+static int _test_cmd_mock_domain(int fd, unsigned int ioas_id, __u32 *stdev_id,
+				 __u32 *hwpt_id, __u32 *idev_id)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_MOCK_DOMAIN,
+		.id = ioas_id,
+		.mock_domain = {},
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret)
+		return ret;
+	if (stdev_id)
+		*stdev_id = cmd.mock_domain.out_stdev_id;
+	assert(cmd.id != 0);
+	if (hwpt_id)
+		*hwpt_id = cmd.mock_domain.out_hwpt_id;
+	if (idev_id)
+		*idev_id = cmd.mock_domain.out_idev_id;
+	return 0;
+}
+#define test_cmd_mock_domain(ioas_id, stdev_id, hwpt_id, idev_id)       \
+	ASSERT_EQ(0, _test_cmd_mock_domain(self->fd, ioas_id, stdev_id, \
+					   hwpt_id, idev_id))
+#define test_err_mock_domain(_errno, ioas_id, stdev_id, hwpt_id)      \
+	EXPECT_ERRNO(_errno, _test_cmd_mock_domain(self->fd, ioas_id, \
+						   stdev_id, hwpt_id, NULL))
+
+static int _test_cmd_mock_domain_flags(int fd, unsigned int ioas_id,
+				       __u32 stdev_flags, __u32 *stdev_id,
+				       __u32 *hwpt_id, __u32 *idev_id)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_MOCK_DOMAIN_FLAGS,
+		.id = ioas_id,
+		.mock_domain_flags = { .dev_flags = stdev_flags },
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret)
+		return ret;
+	if (stdev_id)
+		*stdev_id = cmd.mock_domain_flags.out_stdev_id;
+	assert(cmd.id != 0);
+	if (hwpt_id)
+		*hwpt_id = cmd.mock_domain_flags.out_hwpt_id;
+	if (idev_id)
+		*idev_id = cmd.mock_domain_flags.out_idev_id;
+	return 0;
+}
+#define test_cmd_mock_domain_flags(ioas_id, flags, stdev_id, hwpt_id, idev_id) \
+	ASSERT_EQ(0, _test_cmd_mock_domain_flags(self->fd, ioas_id, flags,     \
+						 stdev_id, hwpt_id, idev_id))
+#define test_err_mock_domain_flags(_errno, ioas_id, flags, stdev_id, hwpt_id) \
+	EXPECT_ERRNO(_errno,                                                  \
+		     _test_cmd_mock_domain_flags(self->fd, ioas_id, flags,    \
+						 stdev_id, hwpt_id, NULL))
+
+static int _test_cmd_mock_domain_replace(int fd, __u32 stdev_id, __u32 pt_id,
+					 __u32 *hwpt_id)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_MOCK_DOMAIN_REPLACE,
+		.id = stdev_id,
+		.mock_domain_replace = {
+			.pt_id = pt_id,
+		},
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret)
+		return ret;
+	if (hwpt_id)
+		*hwpt_id = cmd.mock_domain_replace.pt_id;
+	return 0;
+}
+
+#define test_cmd_mock_domain_replace(stdev_id, pt_id)                         \
+	ASSERT_EQ(0, _test_cmd_mock_domain_replace(self->fd, stdev_id, pt_id, \
+						   NULL))
+#define test_err_mock_domain_replace(_errno, stdev_id, pt_id)                  \
+	EXPECT_ERRNO(_errno, _test_cmd_mock_domain_replace(self->fd, stdev_id, \
+							   pt_id, NULL))
+
+static int _test_cmd_hwpt_alloc(int fd, __u32 device_id, __u32 pt_id, __u32 ft_id,
+				__u32 flags, __u32 *hwpt_id, __u32 data_type,
+				void *data, size_t data_len)
+{
+	struct iommu_hwpt_alloc cmd = {
+		.size = sizeof(cmd),
+		.flags = flags,
+		.dev_id = device_id,
+		.pt_id = pt_id,
+		.data_type = data_type,
+		.data_len = data_len,
+		.data_uptr = (uint64_t)data,
+		.fault_id = ft_id,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_HWPT_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	if (hwpt_id)
+		*hwpt_id = cmd.out_hwpt_id;
+	return 0;
+}
+
+#define test_cmd_hwpt_alloc(device_id, pt_id, flags, hwpt_id)                  \
+	ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags,   \
+					  hwpt_id, IOMMU_HWPT_DATA_NONE, NULL, \
+					  0))
+#define test_cmd_hwpt_alloc_iommupt(device_id, pt_id, flags, iommupt_type, \
+				    hwpt_id)                               \
+	({                                                                 \
+		struct iommu_hwpt_selftest user_cfg = {                    \
+			.pagetable_type = iommupt_type                     \
+		};                                                         \
+                                                                           \
+		ASSERT_EQ(0, _test_cmd_hwpt_alloc(                         \
+				     self->fd, device_id, pt_id, 0, flags, \
+				     hwpt_id, IOMMU_HWPT_DATA_SELFTEST,    \
+				     &user_cfg, sizeof(user_cfg)));        \
+	})
+#define test_err_hwpt_alloc(_errno, device_id, pt_id, flags, hwpt_id)   \
+	EXPECT_ERRNO(_errno, _test_cmd_hwpt_alloc(                      \
+				     self->fd, device_id, pt_id, 0, flags, \
+				     hwpt_id, IOMMU_HWPT_DATA_NONE, NULL, 0))
+
+#define test_cmd_hwpt_alloc_nested(device_id, pt_id, flags, hwpt_id,         \
+				   data_type, data, data_len)                \
+	ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags, \
+					  hwpt_id, data_type, data, data_len))
+#define test_err_hwpt_alloc_nested(_errno, device_id, pt_id, flags, hwpt_id, \
+				   data_type, data, data_len)                \
+	EXPECT_ERRNO(_errno,                                                 \
+		     _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, 0, flags, \
+					  hwpt_id, data_type, data, data_len))
+
+#define test_cmd_hwpt_alloc_iopf(device_id, pt_id, fault_id, flags, hwpt_id,    \
+				   data_type, data, data_len)                   \
+	ASSERT_EQ(0, _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, fault_id, \
+					  flags, hwpt_id, data_type, data,      \
+					  data_len))
+#define test_err_hwpt_alloc_iopf(_errno, device_id, pt_id, fault_id, flags,     \
+				 hwpt_id, data_type, data, data_len)            \
+	EXPECT_ERRNO(_errno,                                                    \
+		     _test_cmd_hwpt_alloc(self->fd, device_id, pt_id, fault_id, \
+					  flags, hwpt_id, data_type, data,      \
+					  data_len))
+
+#define test_cmd_hwpt_check_iotlb(hwpt_id, iotlb_id, expected)                 \
+	({                                                                     \
+		struct iommu_test_cmd test_cmd = {                             \
+			.size = sizeof(test_cmd),                              \
+			.op = IOMMU_TEST_OP_MD_CHECK_IOTLB,                    \
+			.id = hwpt_id,                                         \
+			.check_iotlb = {                                       \
+				.id = iotlb_id,                                \
+				.iotlb = expected,                             \
+			},                                                     \
+		};                                                             \
+		ASSERT_EQ(0,                                                   \
+			  ioctl(self->fd,                                      \
+				_IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_IOTLB), \
+				&test_cmd));                                   \
+	})
+
+#define test_cmd_hwpt_check_iotlb_all(hwpt_id, expected)                       \
+	({                                                                     \
+		int i;                                                         \
+		for (i = 0; i < MOCK_NESTED_DOMAIN_IOTLB_NUM; i++)             \
+			test_cmd_hwpt_check_iotlb(hwpt_id, i, expected);       \
+	})
+
+#define test_cmd_dev_check_cache(device_id, cache_id, expected)                \
+	({                                                                     \
+		struct iommu_test_cmd test_cmd = {                             \
+			.size = sizeof(test_cmd),                              \
+			.op = IOMMU_TEST_OP_DEV_CHECK_CACHE,                   \
+			.id = device_id,                                       \
+			.check_dev_cache = {                                   \
+				.id = cache_id,                                \
+				.cache = expected,                             \
+			},                                                     \
+		};                                                             \
+		ASSERT_EQ(0, ioctl(self->fd,                                   \
+				   _IOMMU_TEST_CMD(                            \
+					   IOMMU_TEST_OP_DEV_CHECK_CACHE),     \
+				   &test_cmd));                                \
+	})
+
+#define test_cmd_dev_check_cache_all(device_id, expected)                      \
+	({                                                                     \
+		int c;                                                         \
+		for (c = 0; c < MOCK_DEV_CACHE_NUM; c++)                       \
+			test_cmd_dev_check_cache(device_id, c, expected);      \
+	})
+
+static int _test_cmd_hwpt_invalidate(int fd, __u32 hwpt_id, void *reqs,
+				     uint32_t data_type, uint32_t lreq,
+				     uint32_t *nreqs)
+{
+	struct iommu_hwpt_invalidate cmd = {
+		.size = sizeof(cmd),
+		.hwpt_id = hwpt_id,
+		.data_type = data_type,
+		.data_uptr = (uint64_t)reqs,
+		.entry_len = lreq,
+		.entry_num = *nreqs,
+	};
+	int rc = ioctl(fd, IOMMU_HWPT_INVALIDATE, &cmd);
+	*nreqs = cmd.entry_num;
+	return rc;
+}
+
+#define test_cmd_hwpt_invalidate(hwpt_id, reqs, data_type, lreq, nreqs)       \
+	({                                                                    \
+		ASSERT_EQ(0,                                                  \
+			  _test_cmd_hwpt_invalidate(self->fd, hwpt_id, reqs,  \
+						    data_type, lreq, nreqs)); \
+	})
+#define test_err_hwpt_invalidate(_errno, hwpt_id, reqs, data_type, lreq, \
+				 nreqs)                                  \
+	({                                                               \
+		EXPECT_ERRNO(_errno, _test_cmd_hwpt_invalidate(          \
+					     self->fd, hwpt_id, reqs,    \
+					     data_type, lreq, nreqs));   \
+	})
+
+static int _test_cmd_viommu_invalidate(int fd, __u32 viommu_id, void *reqs,
+				       uint32_t data_type, uint32_t lreq,
+				       uint32_t *nreqs)
+{
+	struct iommu_hwpt_invalidate cmd = {
+		.size = sizeof(cmd),
+		.hwpt_id = viommu_id,
+		.data_type = data_type,
+		.data_uptr = (uint64_t)reqs,
+		.entry_len = lreq,
+		.entry_num = *nreqs,
+	};
+	int rc = ioctl(fd, IOMMU_HWPT_INVALIDATE, &cmd);
+	*nreqs = cmd.entry_num;
+	return rc;
+}
+
+#define test_cmd_viommu_invalidate(viommu, reqs, lreq, nreqs)                  \
+	({                                                                     \
+		ASSERT_EQ(0,                                                   \
+			  _test_cmd_viommu_invalidate(self->fd, viommu, reqs,  \
+					IOMMU_VIOMMU_INVALIDATE_DATA_SELFTEST, \
+					lreq, nreqs));                         \
+	})
+#define test_err_viommu_invalidate(_errno, viommu_id, reqs, data_type, lreq,   \
+				 nreqs)                                        \
+	({                                                                     \
+		EXPECT_ERRNO(_errno, _test_cmd_viommu_invalidate(              \
+					     self->fd, viommu_id, reqs,        \
+					     data_type, lreq, nreqs));         \
+	})
+
+static int _test_cmd_access_replace_ioas(int fd, __u32 access_id,
+					 unsigned int ioas_id)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_ACCESS_REPLACE_IOAS,
+		.id = access_id,
+		.access_replace_ioas = { .ioas_id = ioas_id },
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret)
+		return ret;
+	return 0;
+}
+#define test_cmd_access_replace_ioas(access_id, ioas_id) \
+	ASSERT_EQ(0, _test_cmd_access_replace_ioas(self->fd, access_id, ioas_id))
+
+static int _test_cmd_set_dirty_tracking(int fd, __u32 hwpt_id, bool enabled)
+{
+	struct iommu_hwpt_set_dirty_tracking cmd = {
+		.size = sizeof(cmd),
+		.flags = enabled ? IOMMU_HWPT_DIRTY_TRACKING_ENABLE : 0,
+		.hwpt_id = hwpt_id,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_HWPT_SET_DIRTY_TRACKING, &cmd);
+	if (ret)
+		return -errno;
+	return 0;
+}
+#define test_cmd_set_dirty_tracking(hwpt_id, enabled) \
+	ASSERT_EQ(0, _test_cmd_set_dirty_tracking(self->fd, hwpt_id, enabled))
+
+static int _test_cmd_get_dirty_bitmap(int fd, __u32 hwpt_id, size_t length,
+				      __u64 iova, size_t page_size,
+				      __u64 *bitmap, __u32 flags)
+{
+	struct iommu_hwpt_get_dirty_bitmap cmd = {
+		.size = sizeof(cmd),
+		.hwpt_id = hwpt_id,
+		.flags = flags,
+		.iova = iova,
+		.length = length,
+		.page_size = page_size,
+		.data = (uintptr_t)bitmap,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_HWPT_GET_DIRTY_BITMAP, &cmd);
+	if (ret)
+		return ret;
+	return 0;
+}
+
+#define test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, page_size,    \
+				  bitmap, flags)                           \
+	ASSERT_EQ(0, _test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, \
+						page_size, bitmap, flags))
+
+static int _test_cmd_mock_domain_set_dirty(int fd, __u32 hwpt_id, size_t length,
+					   __u64 iova, size_t page_size,
+					   __u64 *bitmap, __u64 *dirty)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_DIRTY,
+		.id = hwpt_id,
+		.dirty = {
+			.iova = iova,
+			.length = length,
+			.page_size = page_size,
+			.uptr = (uintptr_t)bitmap,
+		}
+	};
+	int ret;
+
+	ret = ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_DIRTY), &cmd);
+	if (ret)
+		return -ret;
+	if (dirty)
+		*dirty = cmd.dirty.out_nr_dirty;
+	return 0;
+}
+
+#define test_cmd_mock_domain_set_dirty(fd, hwpt_id, length, iova, page_size, \
+				       bitmap, nr)                           \
+	ASSERT_EQ(0,                                                         \
+		  _test_cmd_mock_domain_set_dirty(fd, hwpt_id, length, iova, \
+						  page_size, bitmap, nr))
+
+static int _test_mock_dirty_bitmaps(int fd, __u32 hwpt_id, size_t length,
+				    __u64 iova, size_t page_size,
+				    size_t pte_page_size, __u64 *bitmap,
+				    __u64 nbits, __u32 flags,
+				    struct __test_metadata *_metadata)
+{
+	unsigned long npte = pte_page_size / page_size, pteset = 2 * npte;
+	unsigned long j, i, nr = nbits / pteset ?: 1;
+	unsigned long bitmap_size = DIV_ROUND_UP(nbits, BITS_PER_BYTE);
+	__u64 out_dirty = 0;
+
+	/* Mark all even bits as dirty in the mock domain */
+	memset(bitmap, 0, bitmap_size);
+	for (i = 0; i < nbits; i += pteset)
+		set_bit(i, (unsigned long *)bitmap);
+
+	test_cmd_mock_domain_set_dirty(fd, hwpt_id, length, iova, page_size,
+				       bitmap, &out_dirty);
+	ASSERT_EQ(nr, out_dirty);
+
+	/* Expect all even bits as dirty in the user bitmap */
+	memset(bitmap, 0, bitmap_size);
+	test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, page_size, bitmap,
+				  flags);
+	/* Beware ASSERT_EQ() is two statements -- braces are not redundant! */
+	for (i = 0; i < nbits; i += pteset) {
+		for (j = 0; j < pteset; j++) {
+			ASSERT_EQ(j < npte,
+				  test_bit(i + j, (unsigned long *)bitmap));
+		}
+		ASSERT_EQ(!(i % pteset), test_bit(i, (unsigned long *)bitmap));
+	}
+
+	memset(bitmap, 0, bitmap_size);
+	test_cmd_get_dirty_bitmap(fd, hwpt_id, length, iova, page_size, bitmap,
+				  flags);
+
+	/* It as read already -- expect all zeroes */
+	for (i = 0; i < nbits; i += pteset) {
+		for (j = 0; j < pteset; j++) {
+			ASSERT_EQ(
+				(j < npte) &&
+					(flags &
+					 IOMMU_HWPT_GET_DIRTY_BITMAP_NO_CLEAR),
+				test_bit(i + j, (unsigned long *)bitmap));
+		}
+	}
+
+	return 0;
+}
+#define test_mock_dirty_bitmaps(hwpt_id, length, iova, page_size, pte_size,\
+				bitmap, bitmap_size, flags, _metadata)     \
+	ASSERT_EQ(0, _test_mock_dirty_bitmaps(self->fd, hwpt_id, length, iova, \
+					      page_size, pte_size, bitmap,     \
+					      bitmap_size, flags, _metadata))
+
+static int _test_cmd_create_access(int fd, unsigned int ioas_id,
+				   __u32 *access_id, unsigned int flags)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_CREATE_ACCESS,
+		.id = ioas_id,
+		.create_access = { .flags = flags },
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret)
+		return ret;
+	*access_id = cmd.create_access.out_access_fd;
+	return 0;
+}
+#define test_cmd_create_access(ioas_id, access_id, flags)                  \
+	ASSERT_EQ(0, _test_cmd_create_access(self->fd, ioas_id, access_id, \
+					     flags))
+
+static int _test_cmd_destroy_access(unsigned int access_id)
+{
+	return close(access_id);
+}
+#define test_cmd_destroy_access(access_id) \
+	ASSERT_EQ(0, _test_cmd_destroy_access(access_id))
+
+static int _test_cmd_destroy_access_pages(int fd, unsigned int access_id,
+					  unsigned int access_pages_id)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_DESTROY_ACCESS_PAGES,
+		.id = access_id,
+		.destroy_access_pages = { .access_pages_id = access_pages_id },
+	};
+	return ioctl(fd, IOMMU_TEST_CMD, &cmd);
+}
+#define test_cmd_destroy_access_pages(access_id, access_pages_id)        \
+	ASSERT_EQ(0, _test_cmd_destroy_access_pages(self->fd, access_id, \
+						    access_pages_id))
+#define test_err_destroy_access_pages(_errno, access_id, access_pages_id) \
+	EXPECT_ERRNO(_errno, _test_cmd_destroy_access_pages(              \
+				     self->fd, access_id, access_pages_id))
+
+static int _test_cmd_get_dmabuf(int fd, size_t len, int *out_fd)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_DMABUF_GET,
+		.dmabuf_get = { .length = len, .open_flags = O_CLOEXEC },
+	};
+
+	*out_fd = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (*out_fd < 0)
+		return -1;
+	return 0;
+}
+#define test_cmd_get_dmabuf(len, out_fd) \
+	ASSERT_EQ(0, _test_cmd_get_dmabuf(self->fd, len, out_fd))
+
+static int _test_cmd_revoke_dmabuf(int fd, int dmabuf_fd, bool revoked)
+{
+	struct iommu_test_cmd cmd = {
+		.size = sizeof(cmd),
+		.op = IOMMU_TEST_OP_DMABUF_REVOKE,
+		.dmabuf_revoke = { .dmabuf_fd = dmabuf_fd, .revoked = revoked },
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_TEST_CMD, &cmd);
+	if (ret < 0)
+		return -1;
+	return 0;
+}
+#define test_cmd_revoke_dmabuf(dmabuf_fd, revoke) \
+	ASSERT_EQ(0, _test_cmd_revoke_dmabuf(self->fd, dmabuf_fd, revoke))
+
+static int _test_ioctl_destroy(int fd, unsigned int id)
+{
+	struct iommu_destroy cmd = {
+		.size = sizeof(cmd),
+		.id = id,
+	};
+	return ioctl(fd, IOMMU_DESTROY, &cmd);
+}
+#define test_ioctl_destroy(id) ASSERT_EQ(0, _test_ioctl_destroy(self->fd, id))
+
+static int _test_ioctl_ioas_alloc(int fd, __u32 *id)
+{
+	struct iommu_ioas_alloc cmd = {
+		.size = sizeof(cmd),
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_IOAS_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	*id = cmd.out_ioas_id;
+	return 0;
+}
+#define test_ioctl_ioas_alloc(id)                                   \
+	({                                                          \
+		ASSERT_EQ(0, _test_ioctl_ioas_alloc(self->fd, id)); \
+		ASSERT_NE(0, *(id));                                \
+	})
+
+static int _test_ioctl_ioas_map(int fd, unsigned int ioas_id, void *buffer,
+				size_t length, __u64 *iova, unsigned int flags)
+{
+	struct iommu_ioas_map cmd = {
+		.size = sizeof(cmd),
+		.flags = flags,
+		.ioas_id = ioas_id,
+		.user_va = (uintptr_t)buffer,
+		.length = length,
+	};
+	int ret;
+
+	if (flags & IOMMU_IOAS_MAP_FIXED_IOVA)
+		cmd.iova = *iova;
+
+	ret = ioctl(fd, IOMMU_IOAS_MAP, &cmd);
+	*iova = cmd.iova;
+	return ret;
+}
+#define test_ioctl_ioas_map(buffer, length, iova_p)                        \
+	ASSERT_EQ(0, _test_ioctl_ioas_map(self->fd, self->ioas_id, buffer, \
+					  length, iova_p,                  \
+					  IOMMU_IOAS_MAP_WRITEABLE |       \
+						  IOMMU_IOAS_MAP_READABLE))
+
+#define test_err_ioctl_ioas_map(_errno, buffer, length, iova_p)            \
+	EXPECT_ERRNO(_errno,                                               \
+		     _test_ioctl_ioas_map(self->fd, self->ioas_id, buffer, \
+					  length, iova_p,                  \
+					  IOMMU_IOAS_MAP_WRITEABLE |       \
+						  IOMMU_IOAS_MAP_READABLE))
+
+#define test_ioctl_ioas_map_id(ioas_id, buffer, length, iova_p)              \
+	ASSERT_EQ(0, _test_ioctl_ioas_map(self->fd, ioas_id, buffer, length, \
+					  iova_p,                            \
+					  IOMMU_IOAS_MAP_WRITEABLE |         \
+						  IOMMU_IOAS_MAP_READABLE))
+
+#define test_ioctl_ioas_map_fixed(buffer, length, iova)                       \
+	({                                                                    \
+		__u64 __iova = iova;                                          \
+		ASSERT_EQ(0, _test_ioctl_ioas_map(                            \
+				     self->fd, self->ioas_id, buffer, length, \
+				     &__iova,                                 \
+				     IOMMU_IOAS_MAP_FIXED_IOVA |              \
+					     IOMMU_IOAS_MAP_WRITEABLE |       \
+					     IOMMU_IOAS_MAP_READABLE));       \
+	})
+
+#define test_ioctl_ioas_map_fixed_id(ioas_id, buffer, length, iova)           \
+	({                                                                    \
+		__u64 __iova = iova;                                          \
+		ASSERT_EQ(0,                                                  \
+			  _test_ioctl_ioas_map(                               \
+				  self->fd, ioas_id, buffer, length, &__iova, \
+				  IOMMU_IOAS_MAP_FIXED_IOVA |                 \
+					  IOMMU_IOAS_MAP_WRITEABLE |          \
+					  IOMMU_IOAS_MAP_READABLE));          \
+	})
+
+#define test_err_ioctl_ioas_map_fixed(_errno, buffer, length, iova)           \
+	({                                                                    \
+		__u64 __iova = iova;                                          \
+		EXPECT_ERRNO(_errno,                                          \
+			     _test_ioctl_ioas_map(                            \
+				     self->fd, self->ioas_id, buffer, length, \
+				     &__iova,                                 \
+				     IOMMU_IOAS_MAP_FIXED_IOVA |              \
+					     IOMMU_IOAS_MAP_WRITEABLE |       \
+					     IOMMU_IOAS_MAP_READABLE));       \
+	})
+
+static int _test_ioctl_ioas_unmap(int fd, unsigned int ioas_id, uint64_t iova,
+				  size_t length, uint64_t *out_len)
+{
+	struct iommu_ioas_unmap cmd = {
+		.size = sizeof(cmd),
+		.ioas_id = ioas_id,
+		.iova = iova,
+		.length = length,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_IOAS_UNMAP, &cmd);
+	if (out_len)
+		*out_len = cmd.length;
+	return ret;
+}
+#define test_ioctl_ioas_unmap(iova, length)                                \
+	ASSERT_EQ(0, _test_ioctl_ioas_unmap(self->fd, self->ioas_id, iova, \
+					    length, NULL))
+
+#define test_ioctl_ioas_unmap_id(ioas_id, iova, length)                      \
+	ASSERT_EQ(0, _test_ioctl_ioas_unmap(self->fd, ioas_id, iova, length, \
+					    NULL))
+
+#define test_err_ioctl_ioas_unmap(_errno, iova, length)                      \
+	EXPECT_ERRNO(_errno, _test_ioctl_ioas_unmap(self->fd, self->ioas_id, \
+						    iova, length, NULL))
+
+static int _test_ioctl_ioas_map_file(int fd, unsigned int ioas_id, int mfd,
+				     size_t start, size_t length, __u64 *iova,
+				     unsigned int flags)
+{
+	struct iommu_ioas_map_file cmd = {
+		.size = sizeof(cmd),
+		.flags = flags,
+		.ioas_id = ioas_id,
+		.fd = mfd,
+		.start = start,
+		.length = length,
+	};
+	int ret;
+
+	if (flags & IOMMU_IOAS_MAP_FIXED_IOVA)
+		cmd.iova = *iova;
+
+	ret = ioctl(fd, IOMMU_IOAS_MAP_FILE, &cmd);
+	*iova = cmd.iova;
+	return ret;
+}
+
+#define test_ioctl_ioas_map_file(mfd, start, length, iova_p)                   \
+	ASSERT_EQ(0,                                                           \
+		  _test_ioctl_ioas_map_file(                                   \
+			  self->fd, self->ioas_id, mfd, start, length, iova_p, \
+			  IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE))
+
+#define test_err_ioctl_ioas_map_file(_errno, mfd, start, length, iova_p)     \
+	EXPECT_ERRNO(                                                        \
+		_errno,                                                      \
+		_test_ioctl_ioas_map_file(                                   \
+			self->fd, self->ioas_id, mfd, start, length, iova_p, \
+			IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE))
+
+#define test_ioctl_ioas_map_id_file(ioas_id, mfd, start, length, iova_p)     \
+	ASSERT_EQ(0,                                                         \
+		  _test_ioctl_ioas_map_file(                                 \
+			  self->fd, ioas_id, mfd, start, length, iova_p,     \
+			  IOMMU_IOAS_MAP_WRITEABLE | IOMMU_IOAS_MAP_READABLE))
+
+#define test_ioctl_ioas_map_fixed_file(mfd, start, length, iova)          \
+	({                                                                \
+		__u64 __iova = iova;                                      \
+		ASSERT_EQ(0, _test_ioctl_ioas_map_file(                   \
+				     self->fd, self->ioas_id, mfd, start, \
+				     length, &__iova,                     \
+				     IOMMU_IOAS_MAP_FIXED_IOVA |          \
+					     IOMMU_IOAS_MAP_WRITEABLE |   \
+					     IOMMU_IOAS_MAP_READABLE));   \
+	})
+
+static int _test_ioctl_set_temp_memory_limit(int fd, unsigned int limit)
+{
+	struct iommu_test_cmd memlimit_cmd = {
+		.size = sizeof(memlimit_cmd),
+		.op = IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT,
+		.memory_limit = { .limit = limit },
+	};
+
+	return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_SET_TEMP_MEMORY_LIMIT),
+		     &memlimit_cmd);
+}
+
+#define test_ioctl_set_temp_memory_limit(limit) \
+	ASSERT_EQ(0, _test_ioctl_set_temp_memory_limit(self->fd, limit))
+
+#define test_ioctl_set_default_memory_limit() \
+	test_ioctl_set_temp_memory_limit(65536)
+
+static void teardown_iommufd(int fd, struct __test_metadata *_metadata)
+{
+	struct iommu_test_cmd test_cmd = {
+		.size = sizeof(test_cmd),
+		.op = IOMMU_TEST_OP_MD_CHECK_REFS,
+		.check_refs = { .length = BUFFER_SIZE,
+				.uptr = (uintptr_t)buffer },
+	};
+
+	if (fd == -1)
+		return;
+
+	EXPECT_EQ(0, close(fd));
+
+	fd = open("/dev/iommu", O_RDWR);
+	EXPECT_NE(-1, fd);
+	EXPECT_EQ(0, ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_MD_CHECK_REFS),
+			   &test_cmd));
+	EXPECT_EQ(0, close(fd));
+}
+
+#define EXPECT_ERRNO(expected_errno, cmd)         \
+	({                                        \
+		ASSERT_EQ(-1, cmd);               \
+		EXPECT_EQ(expected_errno, errno); \
+	})
+
+#endif
+
+/* @data can be NULL */
+static int _test_cmd_get_hw_info(int fd, __u32 device_id, __u32 data_type,
+				 void *data, size_t data_len,
+				 uint32_t *capabilities, uint8_t *max_pasid)
+{
+	struct iommu_test_hw_info *info = (struct iommu_test_hw_info *)data;
+	struct iommu_hw_info cmd = {
+		.size = sizeof(cmd),
+		.dev_id = device_id,
+		.data_len = data_len,
+		.in_data_type = data_type,
+		.data_uptr = (uint64_t)data,
+		.out_capabilities = 0,
+	};
+	int ret;
+
+	if (data_type != IOMMU_HW_INFO_TYPE_DEFAULT)
+		cmd.flags |= IOMMU_HW_INFO_FLAG_INPUT_TYPE;
+
+	ret = ioctl(fd, IOMMU_GET_HW_INFO, &cmd);
+	if (ret)
+		return ret;
+
+	assert(cmd.out_data_type == IOMMU_HW_INFO_TYPE_SELFTEST);
+
+	/*
+	 * The struct iommu_test_hw_info should be the one defined
+	 * by the current kernel.
+	 */
+	assert(cmd.data_len == sizeof(struct iommu_test_hw_info));
+
+	/*
+	 * Trailing bytes should be 0 if user buffer is larger than
+	 * the data that kernel reports.
+	 */
+	if (data_len > cmd.data_len) {
+		char *ptr = (char *)(data + cmd.data_len);
+		int idx = 0;
+
+		while (idx < data_len - cmd.data_len) {
+			assert(!*(ptr + idx));
+			idx++;
+		}
+	}
+
+	if (info) {
+		if (data_len >= offsetofend(struct iommu_test_hw_info, test_reg))
+			assert(info->test_reg == IOMMU_HW_INFO_SELFTEST_REGVAL);
+		if (data_len >= offsetofend(struct iommu_test_hw_info, flags))
+			assert(!info->flags);
+	}
+
+	if (max_pasid)
+		*max_pasid = cmd.out_max_pasid_log2;
+
+	if (capabilities)
+		*capabilities = cmd.out_capabilities;
+
+	return 0;
+}
+
+#define test_cmd_get_hw_info(device_id, data_type, data, data_len)         \
+	ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id, data_type, \
+					   data, data_len, NULL, NULL))
+
+#define test_err_get_hw_info(_errno, device_id, data_type, data, data_len) \
+	EXPECT_ERRNO(_errno,                                               \
+		     _test_cmd_get_hw_info(self->fd, device_id, data_type, \
+					   data, data_len, NULL, NULL))
+
+#define test_cmd_get_hw_capabilities(device_id, caps)                        \
+	ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id,              \
+					   IOMMU_HW_INFO_TYPE_DEFAULT, NULL, \
+					   0, &caps, NULL))
+
+#define test_cmd_get_hw_info_pasid(device_id, max_pasid)                     \
+	ASSERT_EQ(0, _test_cmd_get_hw_info(self->fd, device_id,              \
+					   IOMMU_HW_INFO_TYPE_DEFAULT, NULL, \
+					   0, NULL, max_pasid))
+
+static int _test_ioctl_fault_alloc(int fd, __u32 *fault_id, __u32 *fault_fd)
+{
+	struct iommu_fault_alloc cmd = {
+		.size = sizeof(cmd),
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_FAULT_QUEUE_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	*fault_id = cmd.out_fault_id;
+	*fault_fd = cmd.out_fault_fd;
+	return 0;
+}
+
+#define test_ioctl_fault_alloc(fault_id, fault_fd)                       \
+	({                                                               \
+		ASSERT_EQ(0, _test_ioctl_fault_alloc(self->fd, fault_id, \
+						     fault_fd));         \
+		ASSERT_NE(0, *(fault_id));                               \
+		ASSERT_NE(0, *(fault_fd));                               \
+	})
+
+static int _test_cmd_trigger_iopf(int fd, __u32 device_id, __u32 pasid,
+				  __u32 fault_fd)
+{
+	struct iommu_test_cmd trigger_iopf_cmd = {
+		.size = sizeof(trigger_iopf_cmd),
+		.op = IOMMU_TEST_OP_TRIGGER_IOPF,
+		.trigger_iopf = {
+			.dev_id = device_id,
+			.pasid = pasid,
+			.grpid = 0x2,
+			.perm = IOMMU_PGFAULT_PERM_READ | IOMMU_PGFAULT_PERM_WRITE,
+			.addr = 0xdeadbeaf,
+		},
+	};
+	struct iommu_hwpt_page_response response = {
+		.code = IOMMUFD_PAGE_RESP_SUCCESS,
+	};
+	struct iommu_hwpt_pgfault fault = {};
+	ssize_t bytes;
+	int ret;
+
+	ret = ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_IOPF), &trigger_iopf_cmd);
+	if (ret)
+		return ret;
+
+	bytes = read(fault_fd, &fault, sizeof(fault));
+	if (bytes <= 0)
+		return -EIO;
+
+	response.cookie = fault.cookie;
+
+	bytes = write(fault_fd, &response, sizeof(response));
+	if (bytes <= 0)
+		return -EIO;
+
+	return 0;
+}
+
+#define test_cmd_trigger_iopf(device_id, fault_fd) \
+	ASSERT_EQ(0, _test_cmd_trigger_iopf(self->fd, device_id, 0x1, fault_fd))
+#define test_cmd_trigger_iopf_pasid(device_id, pasid, fault_fd) \
+	ASSERT_EQ(0, _test_cmd_trigger_iopf(self->fd, device_id, \
+					    pasid, fault_fd))
+
+static int _test_cmd_viommu_alloc(int fd, __u32 device_id, __u32 hwpt_id,
+				  __u32 flags, __u32 type, void *data,
+				  __u32 data_len, __u32 *viommu_id)
+{
+	struct iommu_viommu_alloc cmd = {
+		.size = sizeof(cmd),
+		.flags = flags,
+		.type = type,
+		.dev_id = device_id,
+		.hwpt_id = hwpt_id,
+		.data_uptr = (uint64_t)data,
+		.data_len = data_len,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_VIOMMU_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	if (viommu_id)
+		*viommu_id = cmd.out_viommu_id;
+	return 0;
+}
+
+#define test_cmd_viommu_alloc(device_id, hwpt_id, type, data, data_len,      \
+			      viommu_id)                                     \
+	ASSERT_EQ(0, _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, 0, \
+					    type, data, data_len, viommu_id))
+#define test_err_viommu_alloc(_errno, device_id, hwpt_id, type, data,        \
+			      data_len, viommu_id)                           \
+	EXPECT_ERRNO(_errno,                                                 \
+		     _test_cmd_viommu_alloc(self->fd, device_id, hwpt_id, 0, \
+					    type, data, data_len, viommu_id))
+
+static int _test_cmd_vdevice_alloc(int fd, __u32 viommu_id, __u32 idev_id,
+				   __u64 virt_id, __u32 *vdev_id)
+{
+	struct iommu_vdevice_alloc cmd = {
+		.size = sizeof(cmd),
+		.dev_id = idev_id,
+		.viommu_id = viommu_id,
+		.virt_id = virt_id,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_VDEVICE_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	if (vdev_id)
+		*vdev_id = cmd.out_vdevice_id;
+	return 0;
+}
+
+#define test_cmd_vdevice_alloc(viommu_id, idev_id, virt_id, vdev_id)       \
+	ASSERT_EQ(0, _test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id, \
+					     virt_id, vdev_id))
+#define test_err_vdevice_alloc(_errno, viommu_id, idev_id, virt_id, vdev_id) \
+	EXPECT_ERRNO(_errno,                                                 \
+		     _test_cmd_vdevice_alloc(self->fd, viommu_id, idev_id,   \
+					     virt_id, vdev_id))
+
+static int _test_cmd_hw_queue_alloc(int fd, __u32 viommu_id, __u32 type,
+				    __u32 idx, __u64 base_addr, __u64 length,
+				    __u32 *hw_queue_id)
+{
+	struct iommu_hw_queue_alloc cmd = {
+		.size = sizeof(cmd),
+		.viommu_id = viommu_id,
+		.type = type,
+		.index = idx,
+		.nesting_parent_iova = base_addr,
+		.length = length,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_HW_QUEUE_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	if (hw_queue_id)
+		*hw_queue_id = cmd.out_hw_queue_id;
+	return 0;
+}
+
+#define test_cmd_hw_queue_alloc(viommu_id, type, idx, base_addr, len, out_qid) \
+	ASSERT_EQ(0, _test_cmd_hw_queue_alloc(self->fd, viommu_id, type, idx,  \
+					      base_addr, len, out_qid))
+#define test_err_hw_queue_alloc(_errno, viommu_id, type, idx, base_addr, len, \
+				out_qid)                                      \
+	EXPECT_ERRNO(_errno,                                                  \
+		     _test_cmd_hw_queue_alloc(self->fd, viommu_id, type, idx, \
+					      base_addr, len, out_qid))
+
+static int _test_cmd_veventq_alloc(int fd, __u32 viommu_id, __u32 type,
+				   __u32 *veventq_id, __u32 *veventq_fd)
+{
+	struct iommu_veventq_alloc cmd = {
+		.size = sizeof(cmd),
+		.type = type,
+		.veventq_depth = 2,
+		.viommu_id = viommu_id,
+	};
+	int ret;
+
+	ret = ioctl(fd, IOMMU_VEVENTQ_ALLOC, &cmd);
+	if (ret)
+		return ret;
+	if (veventq_id)
+		*veventq_id = cmd.out_veventq_id;
+	if (veventq_fd)
+		*veventq_fd = cmd.out_veventq_fd;
+	return 0;
+}
+
+#define test_cmd_veventq_alloc(viommu_id, type, veventq_id, veventq_fd) \
+	ASSERT_EQ(0, _test_cmd_veventq_alloc(self->fd, viommu_id, type, \
+					     veventq_id, veventq_fd))
+#define test_err_veventq_alloc(_errno, viommu_id, type, veventq_id,     \
+			       veventq_fd)                              \
+	EXPECT_ERRNO(_errno,                                            \
+		     _test_cmd_veventq_alloc(self->fd, viommu_id, type, \
+					     veventq_id, veventq_fd))
+
+static int _test_cmd_trigger_vevents(int fd, __u32 dev_id, __u32 nvevents)
+{
+	struct iommu_test_cmd trigger_vevent_cmd = {
+		.size = sizeof(trigger_vevent_cmd),
+		.op = IOMMU_TEST_OP_TRIGGER_VEVENT,
+		.trigger_vevent = {
+			.dev_id = dev_id,
+		},
+	};
+
+	while (nvevents--) {
+		if (ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_TRIGGER_VEVENT),
+			  &trigger_vevent_cmd))
+			return -1;
+	}
+	return 0;
+}
+
+#define test_cmd_trigger_vevents(dev_id, nvevents) \
+	ASSERT_EQ(0, _test_cmd_trigger_vevents(self->fd, dev_id, nvevents))
+
+static int _test_cmd_read_vevents(int fd, __u32 event_fd, __u32 nvevents,
+				  __u32 virt_id, int *prev_seq)
+{
+	struct pollfd pollfd = { .fd = event_fd, .events = POLLIN };
+	struct iommu_viommu_event_selftest *event;
+	struct iommufd_vevent_header *hdr;
+	ssize_t bytes;
+	void *data;
+	int ret, i;
+
+	ret = poll(&pollfd, 1, 1000);
+	if (ret < 0)
+		return -1;
+
+	data = calloc(nvevents, sizeof(*hdr) + sizeof(*event));
+	if (!data) {
+		errno = ENOMEM;
+		return -1;
+	}
+
+	bytes = read(event_fd, data,
+		     nvevents * (sizeof(*hdr) + sizeof(*event)));
+	if (bytes <= 0) {
+		errno = EFAULT;
+		ret = -1;
+		goto out_free;
+	}
+
+	for (i = 0; i < nvevents; i++) {
+		hdr = data + i * (sizeof(*hdr) + sizeof(*event));
+
+		if (hdr->flags & IOMMU_VEVENTQ_FLAG_LOST_EVENTS ||
+		    hdr->sequence - *prev_seq > 1) {
+			*prev_seq = hdr->sequence;
+			errno = EOVERFLOW;
+			ret = -1;
+			goto out_free;
+		}
+		*prev_seq = hdr->sequence;
+		event = data + sizeof(*hdr);
+		if (event->virt_id != virt_id) {
+			errno = EINVAL;
+			ret = -1;
+			goto out_free;
+		}
+	}
+
+	ret = 0;
+out_free:
+	free(data);
+	return ret;
+}
+
+#define test_cmd_read_vevents(event_fd, nvevents, virt_id, prev_seq)      \
+	ASSERT_EQ(0, _test_cmd_read_vevents(self->fd, event_fd, nvevents, \
+					    virt_id, prev_seq))
+#define test_err_read_vevents(_errno, event_fd, nvevents, virt_id, prev_seq) \
+	EXPECT_ERRNO(_errno,                                                 \
+		     _test_cmd_read_vevents(self->fd, event_fd, nvevents,    \
+					    virt_id, prev_seq))
+
+static int _test_cmd_pasid_attach(int fd, __u32 stdev_id, __u32 pasid,
+				  __u32 pt_id)
+{
+	struct iommu_test_cmd test_attach = {
+		.size = sizeof(test_attach),
+		.op = IOMMU_TEST_OP_PASID_ATTACH,
+		.id = stdev_id,
+		.pasid_attach = {
+			.pasid = pasid,
+			.pt_id = pt_id,
+		},
+	};
+
+	return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_ATTACH),
+		     &test_attach);
+}
+
+#define test_cmd_pasid_attach(pasid, hwpt_id) \
+	ASSERT_EQ(0, _test_cmd_pasid_attach(self->fd, self->stdev_id, \
+					    pasid, hwpt_id))
+
+#define test_err_pasid_attach(_errno, pasid, hwpt_id) \
+	EXPECT_ERRNO(_errno, \
+		     _test_cmd_pasid_attach(self->fd, self->stdev_id, \
+					    pasid, hwpt_id))
+
+static int _test_cmd_pasid_replace(int fd, __u32 stdev_id, __u32 pasid,
+				   __u32 pt_id)
+{
+	struct iommu_test_cmd test_replace = {
+		.size = sizeof(test_replace),
+		.op = IOMMU_TEST_OP_PASID_REPLACE,
+		.id = stdev_id,
+		.pasid_replace = {
+			.pasid = pasid,
+			.pt_id = pt_id,
+		},
+	};
+
+	return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_REPLACE),
+		     &test_replace);
+}
+
+#define test_cmd_pasid_replace(pasid, hwpt_id) \
+	ASSERT_EQ(0, _test_cmd_pasid_replace(self->fd, self->stdev_id, \
+					     pasid, hwpt_id))
+
+#define test_err_pasid_replace(_errno, pasid, hwpt_id) \
+	EXPECT_ERRNO(_errno, \
+		     _test_cmd_pasid_replace(self->fd, self->stdev_id, \
+					     pasid, hwpt_id))
+
+static int _test_cmd_pasid_detach(int fd, __u32 stdev_id, __u32 pasid)
+{
+	struct iommu_test_cmd test_detach = {
+		.size = sizeof(test_detach),
+		.op = IOMMU_TEST_OP_PASID_DETACH,
+		.id = stdev_id,
+		.pasid_detach = {
+			.pasid = pasid,
+		},
+	};
+
+	return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_DETACH),
+		     &test_detach);
+}
+
+#define test_cmd_pasid_detach(pasid) \
+	ASSERT_EQ(0, _test_cmd_pasid_detach(self->fd, self->stdev_id, pasid))
+
+static int test_cmd_pasid_check_hwpt(int fd, __u32 stdev_id, __u32 pasid,
+				     __u32 hwpt_id)
+{
+	struct iommu_test_cmd test_pasid_check = {
+		.size = sizeof(test_pasid_check),
+		.op = IOMMU_TEST_OP_PASID_CHECK_HWPT,
+		.id = stdev_id,
+		.pasid_check = {
+			.pasid = pasid,
+			.hwpt_id = hwpt_id,
+		},
+	};
+
+	return ioctl(fd, _IOMMU_TEST_CMD(IOMMU_TEST_OP_PASID_CHECK_HWPT),
+		     &test_pasid_check);
+}
diff --git a/tools/testing/selftests/ipc/.gitignore b/tools/testing/selftests/ipc/.gitignore
new file mode 100644
index 000000000000..9ed280e4c704
--- /dev/null
+++ b/tools/testing/selftests/ipc/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+msgque_test
+msgque
diff --git a/tools/testing/selftests/ipc/Makefile b/tools/testing/selftests/ipc/Makefile
index 25d2e702c68a..50e9c299fc4a 100644
--- a/tools/testing/selftests/ipc/Makefile
+++ b/tools/testing/selftests/ipc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
 ifeq ($(ARCH),i386)
@@ -9,14 +10,9 @@ ifeq ($(ARCH),x86_64)
 	CFLAGS := -DCONFIG_X86_64 -D__x86_64__
 endif
 
-CFLAGS += -I../../../../usr/include/
+CFLAGS += $(KHDR_INCLUDES)
 
-all:
-	$(CC) $(CFLAGS) msgque.c -o msgque_test
-
-TEST_PROGS := msgque_test
+TEST_GEN_PROGS := msgque
 
 include ../lib.mk
 
-clean:
-	rm -fr ./msgque_test
diff --git a/tools/testing/selftests/ipc/config b/tools/testing/selftests/ipc/config
new file mode 100644
index 000000000000..0702447109f5
--- /dev/null
+++ b/tools/testing/selftests/ipc/config
@@ -0,0 +1,2 @@
+CONFIG_EXPERT=y
+CONFIG_CHECKPOINT_RESTORE=y
diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c
index 1b2ce334bb3f..e107379d185c 100644
--- a/tools/testing/selftests/ipc/msgque.c
+++ b/tools/testing/selftests/ipc/msgque.c
@@ -1,11 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 #include <errno.h>
-#include <linux/msg.h>
+#include <sys/msg.h>
 #include <fcntl.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
 #define MAX_MSG_SIZE		32
 
@@ -37,26 +39,26 @@ int restore_queue(struct msgque_data *msgque)
 
 	fd = open("/proc/sys/kernel/msg_next_id", O_WRONLY);
 	if (fd == -1) {
-		printf("Failed to open /proc/sys/kernel/msg_next_id\n");
+		ksft_test_result_fail("Failed to open /proc/sys/kernel/msg_next_id\n");
 		return -errno;
 	}
 	sprintf(buf, "%d", msgque->msq_id);
 
 	ret = write(fd, buf, strlen(buf));
 	if (ret != strlen(buf)) {
-		printf("Failed to write to /proc/sys/kernel/msg_next_id\n");
+		ksft_test_result_fail("Failed to write to /proc/sys/kernel/msg_next_id\n");
 		return -errno;
 	}
 
 	id = msgget(msgque->key, msgque->mode | IPC_CREAT | IPC_EXCL);
 	if (id == -1) {
-		printf("Failed to create queue\n");
+		ksft_test_result_fail("Failed to create queue\n");
 		return -errno;
 	}
 
 	if (id != msgque->msq_id) {
-		printf("Restored queue has wrong id (%d instead of %d)\n",
-							id, msgque->msq_id);
+		ksft_test_result_fail("Restored queue has wrong id (%d instead of %d)\n"
+								, id, msgque->msq_id);
 		ret = -EFAULT;
 		goto destroy;
 	}
@@ -64,15 +66,15 @@ int restore_queue(struct msgque_data *msgque)
 	for (i = 0; i < msgque->qnum; i++) {
 		if (msgsnd(msgque->msq_id, &msgque->messages[i].mtype,
 			   msgque->messages[i].msize, IPC_NOWAIT) != 0) {
-			printf("msgsnd failed (%m)\n");
+			ksft_test_result_fail("msgsnd failed (%m)\n");
 			ret = -errno;
 			goto destroy;
-		};
+		}
 	}
 	return 0;
 
 destroy:
-	if (msgctl(id, IPC_RMID, 0))
+	if (msgctl(id, IPC_RMID, NULL))
 		printf("Failed to destroy queue: %d\n", -errno);
 	return ret;
 }
@@ -88,23 +90,22 @@ int check_and_destroy_queue(struct msgque_data *msgque)
 		if (ret < 0) {
 			if (errno == ENOMSG)
 				break;
-			printf("Failed to read IPC message: %m\n");
+			ksft_test_result_fail("Failed to read IPC message: %m\n");
 			ret = -errno;
 			goto err;
 		}
 		if (ret != msgque->messages[cnt].msize) {
-			printf("Wrong message size: %d (expected %d)\n", ret,
-						msgque->messages[cnt].msize);
+			ksft_test_result_fail("Wrong message size: %d (expected %d)\n", ret, msgque->messages[cnt].msize);
 			ret = -EINVAL;
 			goto err;
 		}
 		if (message.mtype != msgque->messages[cnt].mtype) {
-			printf("Wrong message type\n");
+			ksft_test_result_fail("Wrong message type\n");
 			ret = -EINVAL;
 			goto err;
 		}
 		if (memcmp(message.mtext, msgque->messages[cnt].mtext, ret)) {
-			printf("Wrong message content\n");
+			ksft_test_result_fail("Wrong message content\n");
 			ret = -EINVAL;
 			goto err;
 		}
@@ -112,14 +113,14 @@ int check_and_destroy_queue(struct msgque_data *msgque)
 	}
 
 	if (cnt != msgque->qnum) {
-		printf("Wrong message number\n");
+		ksft_test_result_fail("Wrong message number\n");
 		ret = -EINVAL;
 		goto err;
 	}
 
 	ret = 0;
 err:
-	if (msgctl(msgque->msq_id, IPC_RMID, 0)) {
+	if (msgctl(msgque->msq_id, IPC_RMID, NULL)) {
 		printf("Failed to destroy queue: %d\n", -errno);
 		return -errno;
 	}
@@ -128,16 +129,16 @@ err:
 
 int dump_queue(struct msgque_data *msgque)
 {
-	struct msqid64_ds ds;
+	struct msqid_ds ds;
 	int kern_id;
 	int i, ret;
 
 	for (kern_id = 0; kern_id < 256; kern_id++) {
 		ret = msgctl(kern_id, MSG_STAT, &ds);
 		if (ret < 0) {
-			if (errno == -EINVAL)
+			if (errno == EINVAL)
 				continue;
-			printf("Failed to get stats for IPC queue with id %d\n",
+			ksft_test_result_fail("Failed to get stats for IPC queue with id %d\n",
 					kern_id);
 			return -errno;
 		}
@@ -148,7 +149,7 @@ int dump_queue(struct msgque_data *msgque)
 
 	msgque->messages = malloc(sizeof(struct msg1) * ds.msg_qnum);
 	if (msgque->messages == NULL) {
-		printf("Failed to get stats for IPC queue\n");
+		ksft_test_result_fail("Failed to get stats for IPC queue\n");
 		return -ENOMEM;
 	}
 
@@ -160,7 +161,7 @@ int dump_queue(struct msgque_data *msgque)
 		ret = msgrcv(msgque->msq_id, &msgque->messages[i].mtype,
 				MAX_MSG_SIZE, i, IPC_NOWAIT | MSG_COPY);
 		if (ret < 0) {
-			printf("Failed to copy IPC message: %m (%d)\n", errno);
+			ksft_test_result_fail("Failed to copy IPC message: %m (%d)\n", errno);
 			return -errno;
 		}
 		msgque->messages[i].msize = ret;
@@ -176,79 +177,77 @@ int fill_msgque(struct msgque_data *msgque)
 	memcpy(msgbuf.mtext, TEST_STRING, sizeof(TEST_STRING));
 	if (msgsnd(msgque->msq_id, &msgbuf.mtype, sizeof(TEST_STRING),
 				IPC_NOWAIT) != 0) {
-		printf("First message send failed (%m)\n");
+		ksft_test_result_fail("First message send failed (%m)\n");
 		return -errno;
-	};
+	}
 
 	msgbuf.mtype = ANOTHER_MSG_TYPE;
 	memcpy(msgbuf.mtext, ANOTHER_TEST_STRING, sizeof(ANOTHER_TEST_STRING));
 	if (msgsnd(msgque->msq_id, &msgbuf.mtype, sizeof(ANOTHER_TEST_STRING),
 				IPC_NOWAIT) != 0) {
-		printf("Second message send failed (%m)\n");
+		ksft_test_result_fail("Second message send failed (%m)\n");
 		return -errno;
-	};
+	}
 	return 0;
 }
 
 int main(int argc, char **argv)
 {
-	int msg, pid, err;
+	int err;
 	struct msgque_data msgque;
 
-	if (getuid() != 0) {
-		printf("Please run the test as root - Exiting.\n");
-		return ksft_exit_fail();
-	}
+	if (getuid() != 0)
+		ksft_exit_skip("Please run the test as root - Exiting.\n");
 
 	msgque.key = ftok(argv[0], 822155650);
 	if (msgque.key == -1) {
-		printf("Can't make key: %d\n", -errno);
-		return ksft_exit_fail();
+		ksft_test_result_fail("Can't make key: %d\n", -errno);
+		ksft_exit_fail();
 	}
 
 	msgque.msq_id = msgget(msgque.key, IPC_CREAT | IPC_EXCL | 0666);
 	if (msgque.msq_id == -1) {
 		err = -errno;
-		printf("Can't create queue: %d\n", err);
+		ksft_test_result_fail("Can't create queue: %d\n", err);
 		goto err_out;
 	}
 
 	err = fill_msgque(&msgque);
 	if (err) {
-		printf("Failed to fill queue: %d\n", err);
+		ksft_test_result_fail("Failed to fill queue: %d\n", err);
 		goto err_destroy;
 	}
 
 	err = dump_queue(&msgque);
 	if (err) {
-		printf("Failed to dump queue: %d\n", err);
+		ksft_test_result_fail("Failed to dump queue: %d\n", err);
 		goto err_destroy;
 	}
 
 	err = check_and_destroy_queue(&msgque);
 	if (err) {
-		printf("Failed to check and destroy queue: %d\n", err);
+		ksft_test_result_fail("Failed to check and destroy queue: %d\n", err);
 		goto err_out;
 	}
 
 	err = restore_queue(&msgque);
 	if (err) {
-		printf("Failed to restore queue: %d\n", err);
+		ksft_test_result_fail("Failed to restore queue: %d\n", err);
 		goto err_destroy;
 	}
 
 	err = check_and_destroy_queue(&msgque);
 	if (err) {
-		printf("Failed to test queue: %d\n", err);
+		ksft_test_result_fail("Failed to test queue: %d\n", err);
 		goto err_out;
 	}
-	return ksft_exit_pass();
+	ksft_exit_pass();
 
 err_destroy:
-	if (msgctl(msgque.msq_id, IPC_RMID, 0)) {
+	if (msgctl(msgque.msq_id, IPC_RMID, NULL)) {
 		printf("Failed to destroy queue: %d\n", -errno);
-		return ksft_exit_fail();
+		ksft_exit_fail();
 	}
 err_out:
-	return ksft_exit_fail();
+	ksft_exit_fail();
 }
diff --git a/tools/testing/selftests/ir/.gitignore b/tools/testing/selftests/ir/.gitignore
new file mode 100644
index 000000000000..0bbada8c1811
--- /dev/null
+++ b/tools/testing/selftests/ir/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+ir_loopback
diff --git a/tools/testing/selftests/ir/Makefile b/tools/testing/selftests/ir/Makefile
new file mode 100644
index 000000000000..ad06489c22a5
--- /dev/null
+++ b/tools/testing/selftests/ir/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_PROGS := ir_loopback.sh
+TEST_GEN_PROGS_EXTENDED := ir_loopback
+APIDIR := ../../../include/uapi
+CFLAGS += -Wall -O2 -I$(APIDIR)
+
+include ../lib.mk
diff --git a/tools/testing/selftests/ir/ir_loopback.c b/tools/testing/selftests/ir/ir_loopback.c
new file mode 100644
index 000000000000..adfcf50b1264
--- /dev/null
+++ b/tools/testing/selftests/ir/ir_loopback.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0
+// test ir decoder
+//
+// Copyright (C) 2018 Sean Young <sean@mess.org>
+
+// When sending LIRC_MODE_SCANCODE, the IR will be encoded. rc-loopback
+// will send this IR to the receiver side, where we try to read the decoded
+// IR. Decoding happens in a separate kernel thread, so we will need to
+// wait until that is scheduled, hence we use poll to check for read
+// readiness.
+
+#include <linux/lirc.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <poll.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "kselftest.h"
+
+#define TEST_SCANCODES	10
+#define SYSFS_PATH_MAX 256
+#define DNAME_PATH_MAX 256
+
+/*
+ * Support ancient lirc.h which does not have these values. Can be removed
+ * once RHEL 8 is no longer a relevant testing platform.
+ */
+#if RC_PROTO_MAX < 26
+#define RC_PROTO_RCMM12 24
+#define RC_PROTO_RCMM24 25
+#define RC_PROTO_RCMM32 26
+#endif
+
+static const struct {
+	enum rc_proto proto;
+	const char *name;
+	unsigned int mask;
+	const char *decoder;
+} protocols[] = {
+	{ RC_PROTO_RC5, "rc-5", 0x1f7f, "rc-5" },
+	{ RC_PROTO_RC5X_20, "rc-5x-20", 0x1f7f3f, "rc-5" },
+	{ RC_PROTO_RC5_SZ, "rc-5-sz", 0x2fff, "rc-5-sz" },
+	{ RC_PROTO_JVC, "jvc", 0xffff, "jvc" },
+	{ RC_PROTO_SONY12, "sony-12", 0x1f007f, "sony" },
+	{ RC_PROTO_SONY15, "sony-15", 0xff007f, "sony" },
+	{ RC_PROTO_SONY20, "sony-20", 0x1fff7f, "sony" },
+	{ RC_PROTO_NEC, "nec", 0xffff, "nec" },
+	{ RC_PROTO_NECX, "nec-x", 0xffffff, "nec" },
+	{ RC_PROTO_NEC32, "nec-32", 0xffffffff, "nec" },
+	{ RC_PROTO_SANYO, "sanyo", 0x1fffff, "sanyo" },
+	{ RC_PROTO_RC6_0, "rc-6-0", 0xffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_20, "rc-6-6a-20", 0xfffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_24, "rc-6-6a-24", 0xffffff, "rc-6" },
+	{ RC_PROTO_RC6_6A_32, "rc-6-6a-32", 0xffffffff, "rc-6" },
+	{ RC_PROTO_RC6_MCE, "rc-6-mce", 0x00007fff, "rc-6" },
+	{ RC_PROTO_SHARP, "sharp", 0x1fff, "sharp" },
+	{ RC_PROTO_IMON, "imon", 0x7fffffff, "imon" },
+	{ RC_PROTO_RCMM12, "rcmm-12", 0x00000fff, "rc-mm" },
+	{ RC_PROTO_RCMM24, "rcmm-24", 0x00ffffff, "rc-mm" },
+	{ RC_PROTO_RCMM32, "rcmm-32", 0xffffffff, "rc-mm" },
+};
+
+int lirc_open(const char *rc)
+{
+	struct dirent *dent;
+	char buf[SYSFS_PATH_MAX + DNAME_PATH_MAX];
+	DIR *d;
+	int fd;
+
+	snprintf(buf, sizeof(buf), "/sys/class/rc/%s", rc);
+
+	d = opendir(buf);
+	if (!d)
+		ksft_exit_fail_msg("cannot open %s: %m\n", buf);
+
+	while ((dent = readdir(d)) != NULL) {
+		if (!strncmp(dent->d_name, "lirc", 4)) {
+			snprintf(buf, sizeof(buf), "/dev/%s", dent->d_name);
+			break;
+		}
+	}
+
+	if (!dent)
+		ksft_exit_skip("cannot find lirc device for %s\n", rc);
+
+	closedir(d);
+
+	fd = open(buf, O_RDWR | O_NONBLOCK);
+	if (fd == -1)
+		ksft_exit_fail_msg("cannot open: %s: %m\n", buf);
+
+	return fd;
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int mode;
+	char buf[100];
+	int rlircfd, wlircfd, protocolfd, i, n;
+
+	srand(time(NULL));
+
+	if (argc != 3)
+		ksft_exit_fail_msg("Usage: %s <write rcN> <read rcN>\n",
+				   argv[0]);
+
+	rlircfd = lirc_open(argv[2]);
+	mode = LIRC_MODE_SCANCODE;
+	if (ioctl(rlircfd, LIRC_SET_REC_MODE, &mode))
+		ksft_exit_fail_msg("failed to set scancode rec mode %s: %m\n",
+				   argv[2]);
+
+	wlircfd = lirc_open(argv[1]);
+	if (ioctl(wlircfd, LIRC_SET_SEND_MODE, &mode))
+		ksft_exit_fail_msg("failed to set scancode send mode %s: %m\n",
+				   argv[1]);
+
+	snprintf(buf, sizeof(buf), "/sys/class/rc/%s/protocols", argv[2]);
+	protocolfd = open(buf, O_WRONLY);
+	if (protocolfd == -1)
+		ksft_exit_fail_msg("failed to open %s: %m\n", buf);
+
+	printf("Sending IR on %s and receiving IR on %s.\n", argv[1], argv[2]);
+
+	for (i = 0; i < ARRAY_SIZE(protocols); i++) {
+		if (write(protocolfd, protocols[i].decoder,
+			  strlen(protocols[i].decoder)) == -1)
+			ksft_exit_fail_msg("failed to set write decoder\n");
+
+		printf("Testing protocol %s for decoder %s (%d/%d)...\n",
+		       protocols[i].name, protocols[i].decoder,
+		       i + 1, (int)ARRAY_SIZE(protocols));
+
+		for (n = 0; n < TEST_SCANCODES; n++) {
+			unsigned int scancode = rand() & protocols[i].mask;
+			unsigned int rc_proto = protocols[i].proto;
+
+			if (rc_proto == RC_PROTO_RC6_MCE)
+				scancode |= 0x800f0000;
+
+			if (rc_proto == RC_PROTO_NECX &&
+			    (((scancode >> 16) ^ ~(scancode >> 8)) & 0xff) == 0)
+				continue;
+
+			if (rc_proto == RC_PROTO_NEC32 &&
+			    (((scancode >> 8) ^ ~scancode) & 0xff) == 0)
+				continue;
+
+			if (rc_proto == RC_PROTO_RCMM32 &&
+			    (scancode & 0x000c0000) != 0x000c0000 &&
+			    scancode & 0x00008000)
+				continue;
+
+			struct lirc_scancode lsc = {
+				.rc_proto = rc_proto,
+				.scancode = scancode
+			};
+
+			printf("Testing scancode:%x\n", scancode);
+
+			while (write(wlircfd, &lsc, sizeof(lsc)) < 0) {
+				if (errno == EINTR)
+					continue;
+
+				ksft_exit_fail_msg("failed to send ir: %m\n");
+			}
+
+			struct pollfd pfd = { .fd = rlircfd, .events = POLLIN };
+			struct lirc_scancode lsc2;
+
+			poll(&pfd, 1, 1000);
+
+			bool decoded = true;
+
+			while (read(rlircfd, &lsc2, sizeof(lsc2)) < 0) {
+				if (errno == EINTR)
+					continue;
+
+				ksft_test_result_error("no scancode decoded: %m\n");
+				decoded = false;
+				break;
+			}
+
+			if (!decoded)
+				continue;
+
+			if (lsc.rc_proto != lsc2.rc_proto)
+				ksft_test_result_error("decoded protocol is different: %d\n",
+						       lsc2.rc_proto);
+
+			else if (lsc.scancode != lsc2.scancode)
+				ksft_test_result_error("decoded scancode is different: %llx\n",
+						       lsc2.scancode);
+			else
+				ksft_inc_pass_cnt();
+		}
+
+		printf("OK\n");
+	}
+
+	close(rlircfd);
+	close(wlircfd);
+	close(protocolfd);
+
+	if (ksft_get_fail_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/ir/ir_loopback.sh b/tools/testing/selftests/ir/ir_loopback.sh
new file mode 100755
index 000000000000..aff9299c9416
--- /dev/null
+++ b/tools/testing/selftests/ir/ir_loopback.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+if [ $UID != 0 ]; then
+	echo "Please run ir_loopback test as root [SKIP]"
+	exit $ksft_skip
+fi
+
+if ! /sbin/modprobe -q -n rc-loopback; then
+        echo "ir_loopback: module rc-loopback is not found in /lib/modules/`uname -r` [SKIP]"
+        exit $ksft_skip
+fi
+
+/sbin/modprobe rc-loopback
+if [ $? -ne 0 ]; then
+	exit
+fi
+
+RCDEV=$(grep -l DRV_NAME=rc-loopback /sys/class/rc/rc*/uevent | grep -o 'rc[0-9]\+')
+
+./ir_loopback $RCDEV $RCDEV
+exit
diff --git a/tools/testing/selftests/kcmp/.gitignore b/tools/testing/selftests/kcmp/.gitignore
index 5a9b3732b2de..38ccdfe80ef7 100644
--- a/tools/testing/selftests/kcmp/.gitignore
+++ b/tools/testing/selftests/kcmp/.gitignore
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 kcmp_test
 kcmp-test-file
diff --git a/tools/testing/selftests/kcmp/Makefile b/tools/testing/selftests/kcmp/Makefile
index 2ae7450a9a89..59a1e5379018 100644
--- a/tools/testing/selftests/kcmp/Makefile
+++ b/tools/testing/selftests/kcmp/Makefile
@@ -1,10 +1,9 @@
-CFLAGS += -I../../../../usr/include/
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += $(KHDR_INCLUDES)
 
-all: kcmp_test
+TEST_GEN_PROGS := kcmp_test
 
-TEST_PROGS := kcmp_test
+EXTRA_CLEAN := $(OUTPUT)/kcmp-test-file
 
 include ../lib.mk
 
-clean:
-	$(RM) kcmp_test kcmp-test-file
diff --git a/tools/testing/selftests/kcmp/kcmp_test.c b/tools/testing/selftests/kcmp/kcmp_test.c
index a5a4da856dfe..79aa438b7479 100644
--- a/tools/testing/selftests/kcmp/kcmp_test.c
+++ b/tools/testing/selftests/kcmp/kcmp_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 
 #include <stdio.h>
@@ -8,7 +9,6 @@
 #include <errno.h>
 #include <string.h>
 #include <fcntl.h>
-
 #include <linux/unistd.h>
 #include <linux/kcmp.h>
 
@@ -16,20 +16,28 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
+#include <sys/epoll.h>
 
-#include "../kselftest.h"
+#include "kselftest.h"
 
-static long sys_kcmp(int pid1, int pid2, int type, int fd1, int fd2)
+static long sys_kcmp(int pid1, int pid2, int type, unsigned long fd1, unsigned long fd2)
 {
 	return syscall(__NR_kcmp, pid1, pid2, type, fd1, fd2);
 }
 
+static const unsigned int duped_num = 64;
+
 int main(int argc, char **argv)
 {
 	const char kpath[] = "kcmp-test-file";
+	struct kcmp_epoll_slot epoll_slot;
+	struct epoll_event ev;
 	int pid1, pid2;
+	int pipefd[2];
 	int fd1, fd2;
+	int epollfd;
 	int status;
+	int fddup;
 
 	fd1 = open(kpath, O_RDWR | O_CREAT | O_TRUNC, 0644);
 	pid1 = getpid();
@@ -39,6 +47,37 @@ int main(int argc, char **argv)
 		ksft_exit_fail();
 	}
 
+	if (pipe(pipefd)) {
+		perror("Can't create pipe");
+		ksft_exit_fail();
+	}
+
+	epollfd = epoll_create1(0);
+	if (epollfd < 0) {
+		perror("epoll_create1 failed");
+		ksft_exit_fail();
+	}
+
+	memset(&ev, 0xff, sizeof(ev));
+	ev.events = EPOLLIN | EPOLLOUT;
+
+	if (epoll_ctl(epollfd, EPOLL_CTL_ADD, pipefd[0], &ev)) {
+		perror("epoll_ctl failed");
+		ksft_exit_fail();
+	}
+
+	fddup = dup2(pipefd[1], duped_num);
+	if (fddup < 0) {
+		perror("dup2 failed");
+		ksft_exit_fail();
+	}
+
+	if (epoll_ctl(epollfd, EPOLL_CTL_ADD, fddup, &ev)) {
+		perror("epoll_ctl failed");
+		ksft_exit_fail();
+	}
+	close(fddup);
+
 	pid2 = fork();
 	if (pid2 < 0) {
 		perror("fork failed");
@@ -49,7 +88,10 @@ int main(int argc, char **argv)
 		int pid2 = getpid();
 		int ret;
 
-		fd2 = open(kpath, O_RDWR, 0644);
+		ksft_print_header();
+		ksft_set_plan(3);
+
+		fd2 = open(kpath, O_RDWR);
 		if (fd2 < 0) {
 			perror("Can't open file");
 			ksft_exit_fail();
@@ -95,7 +137,24 @@ int main(int argc, char **argv)
 			ksft_inc_pass_cnt();
 		}
 
-		ksft_print_cnts();
+		/* Compare epoll target */
+		epoll_slot = (struct kcmp_epoll_slot) {
+			.efd	= epollfd,
+			.tfd	= duped_num,
+			.toff	= 0,
+		};
+		ret = sys_kcmp(pid1, pid1, KCMP_EPOLL_TFD, pipefd[1],
+			       (unsigned long)(void *)&epoll_slot);
+		if (ret) {
+			printf("FAIL: 0 expected but %d returned (%s)\n",
+				ret, strerror(errno));
+			ksft_inc_fail_cnt();
+			ret = -1;
+		} else {
+			printf("PASS: 0 returned as expected\n");
+			ksft_inc_pass_cnt();
+		}
+
 
 		if (ret)
 			ksft_exit_fail();
@@ -105,5 +164,5 @@ int main(int argc, char **argv)
 
 	waitpid(pid2, &status, P_ALL);
 
-	return ksft_exit_pass();
+	return 0;
 }
diff --git a/tools/testing/selftests/kexec/.gitignore b/tools/testing/selftests/kexec/.gitignore
new file mode 100644
index 000000000000..5f3d9e089ae8
--- /dev/null
+++ b/tools/testing/selftests/kexec/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+test_kexec_jump
diff --git a/tools/testing/selftests/kexec/Makefile b/tools/testing/selftests/kexec/Makefile
new file mode 100644
index 000000000000..874cfdd3b75b
--- /dev/null
+++ b/tools/testing/selftests/kexec/Makefile
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for kexec tests
+
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+ARCH_PROCESSED := $(shell echo $(ARCH) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq ($(ARCH_PROCESSED),$(filter $(ARCH_PROCESSED),x86 ppc64le))
+TEST_PROGS := test_kexec_load.sh test_kexec_file_load.sh
+TEST_FILES := kexec_common_lib.sh
+
+include ../../../scripts/Makefile.arch
+
+ifeq ($(IS_64_BIT)$(ARCH_PROCESSED),1x86)
+TEST_PROGS += test_kexec_jump.sh
+TEST_GEN_PROGS := test_kexec_jump
+endif
+
+include ../lib.mk
+
+endif
diff --git a/tools/testing/selftests/kexec/config b/tools/testing/selftests/kexec/config
new file mode 100644
index 000000000000..8962e862b2b8
--- /dev/null
+++ b/tools/testing/selftests/kexec/config
@@ -0,0 +1,3 @@
+CONFIG_IMA_APPRAISE=y
+CONFIG_IMA_ARCH_POLICY=y
+CONFIG_SECURITYFS=y
diff --git a/tools/testing/selftests/kexec/kexec_common_lib.sh b/tools/testing/selftests/kexec/kexec_common_lib.sh
new file mode 100755
index 000000000000..641ef05863b2
--- /dev/null
+++ b/tools/testing/selftests/kexec/kexec_common_lib.sh
@@ -0,0 +1,219 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Kselftest framework defines: ksft_pass=0, ksft_fail=1, ksft_skip=4
+
+VERBOSE="${VERBOSE:-1}"
+IKCONFIG="/tmp/config-`uname -r`"
+KERNEL_IMAGE="/boot/vmlinuz-`uname -r`"
+SECURITYFS=$(grep "securityfs" /proc/mounts | awk '{print $2}')
+
+log_info()
+{
+	[ $VERBOSE -ne 0 ] && echo "[INFO] $1"
+}
+
+# The ksefltest framework requirement returns 0 for PASS.
+log_pass()
+{
+	[ $VERBOSE -ne 0 ] && echo "$1 [PASS]"
+	exit 0
+}
+
+# The ksefltest framework requirement returns 1 for FAIL.
+log_fail()
+{
+	[ $VERBOSE -ne 0 ] && echo "$1 [FAIL]"
+	exit 1
+}
+
+# The ksefltest framework requirement returns 4 for SKIP.
+log_skip()
+{
+	[ $VERBOSE -ne 0 ] && echo "$1"
+	exit 4
+}
+
+# Check efivar SecureBoot-$(the UUID) and SetupMode-$(the UUID).
+# (Based on kdump-lib.sh)
+get_efivarfs_secureboot_mode()
+{
+	local efivarfs="/sys/firmware/efi/efivars"
+	local secure_boot_file=""
+	local setup_mode_file=""
+	local secureboot_mode=0
+	local setup_mode=0
+
+	# Make sure that efivar_fs is mounted in the normal location
+	if ! grep -q "^\S\+ $efivarfs efivarfs" /proc/mounts; then
+		log_info "efivars is not mounted on $efivarfs"
+		return 0;
+	fi
+	secure_boot_file=$(find "$efivarfs" -name SecureBoot-* 2>/dev/null)
+	setup_mode_file=$(find "$efivarfs" -name SetupMode-* 2>/dev/null)
+	if [ -f "$secure_boot_file" ] && [ -f "$setup_mode_file" ]; then
+		secureboot_mode=$(hexdump -v -e '/1 "%d\ "' \
+			"$secure_boot_file"|cut -d' ' -f 5)
+		setup_mode=$(hexdump -v -e '/1 "%d\ "' \
+			"$setup_mode_file"|cut -d' ' -f 5)
+
+		if [ $secureboot_mode -eq 1 ] && [ $setup_mode -eq 0 ]; then
+			log_info "secure boot mode enabled (CONFIG_EFIVAR_FS)"
+			return 1;
+		fi
+	fi
+	return 0;
+}
+
+# On powerpc platform, check device-tree property
+# /proc/device-tree/ibm,secureboot/os-secureboot-enforcing
+# to detect secureboot state.
+get_ppc64_secureboot_mode()
+{
+	local secure_boot_file="/proc/device-tree/ibm,secureboot/os-secureboot-enforcing"
+	# Check for secure boot file existence
+	if [ -f $secure_boot_file ]; then
+		log_info "Secureboot is enabled (Device tree)"
+		return 1;
+	fi
+	log_info "Secureboot is not enabled (Device tree)"
+	return 0;
+}
+
+# Return the architecture of the system
+get_arch()
+{
+	echo $(arch)
+}
+
+# Check efivar SecureBoot-$(the UUID) and SetupMode-$(the UUID).
+# The secure boot mode can be accessed as the last integer of
+# "od -An -t u1 /sys/firmware/efi/efivars/SecureBoot-*".  The efi
+# SetupMode can be similarly accessed.
+# Return 1 for SecureBoot mode enabled and SetupMode mode disabled.
+get_secureboot_mode()
+{
+	local secureboot_mode=0
+	local system_arch=$(get_arch)
+
+	if [ "$system_arch" == "ppc64le" ]; then
+		get_ppc64_secureboot_mode
+		secureboot_mode=$?
+	else
+		get_efivarfs_secureboot_mode
+		secureboot_mode=$?
+	fi
+
+	if [ $secureboot_mode -eq 0 ]; then
+		log_info "secure boot mode not enabled"
+	fi
+	return $secureboot_mode;
+}
+
+require_root_privileges()
+{
+	if [ $(id -ru) -ne 0 ]; then
+		log_skip "requires root privileges"
+	fi
+}
+
+# Look for config option in Kconfig file.
+# Return 1 for found and 0 for not found.
+kconfig_enabled()
+{
+	local config="$1"
+	local msg="$2"
+
+	grep -E -q $config $IKCONFIG
+	if [ $? -eq 0 ]; then
+		log_info "$msg"
+		return 1
+	fi
+	return 0
+}
+
+# Attempt to get the kernel config first by checking the modules directory
+# then via proc, and finally by extracting it from the kernel image or the
+# configs.ko using scripts/extract-ikconfig.
+# Return 1 for found.
+get_kconfig()
+{
+	local proc_config="/proc/config.gz"
+	local module_dir="/lib/modules/`uname -r`"
+	local configs_module="$module_dir/kernel/kernel/configs.ko*"
+
+	if [ -f $module_dir/config ]; then
+		IKCONFIG=$module_dir/config
+		return 1
+	fi
+
+	if [ ! -f $proc_config ]; then
+		modprobe configs > /dev/null 2>&1
+	fi
+	if [ -f $proc_config ]; then
+		cat $proc_config | gunzip > $IKCONFIG 2>/dev/null
+		if [ $? -eq 0 ]; then
+			return 1
+		fi
+	fi
+
+	local extract_ikconfig="$module_dir/source/scripts/extract-ikconfig"
+	if [ ! -f $extract_ikconfig ]; then
+		log_skip "extract-ikconfig not found"
+	fi
+
+	$extract_ikconfig $KERNEL_IMAGE > $IKCONFIG 2>/dev/null
+	if [ $? -eq 1 ]; then
+		if [ ! -f $configs_module ]; then
+			log_skip "CONFIG_IKCONFIG not enabled"
+		fi
+		$extract_ikconfig $configs_module > $IKCONFIG
+		if [ $? -eq 1 ]; then
+			log_skip "CONFIG_IKCONFIG not enabled"
+		fi
+	fi
+	return 1
+}
+
+# Make sure that securityfs is mounted
+mount_securityfs()
+{
+	if [ -z $SECURITYFS ]; then
+		SECURITYFS=/sys/kernel/security
+		mount -t securityfs security $SECURITYFS
+	fi
+
+	if [ ! -d "$SECURITYFS" ]; then
+		log_fail "$SECURITYFS :securityfs is not mounted"
+	fi
+}
+
+# The policy rule format is an "action" followed by key-value pairs.  This
+# function supports up to two key-value pairs, in any order.
+# For example: action func=<keyword> [appraise_type=<type>]
+# Return 1 for found and 0 for not found.
+check_ima_policy()
+{
+	local action="$1"
+	local keypair1="$2"
+	local keypair2="$3"
+	local ret=0
+
+	mount_securityfs
+
+	local ima_policy=$SECURITYFS/ima/policy
+	if [ ! -e $ima_policy ]; then
+		log_fail "$ima_policy not found"
+	fi
+
+	if [ -n $keypair2 ]; then
+		grep -e "^$action.*$keypair1" "$ima_policy" | \
+			grep -q -e "$keypair2"
+	else
+		grep -q -e "^$action.*$keypair1" "$ima_policy"
+	fi
+
+	# invert "grep -q" result, returning 1 for found.
+	[ $? -eq 0 ] && ret=1
+	return $ret
+}
diff --git a/tools/testing/selftests/kexec/test_kexec_file_load.sh b/tools/testing/selftests/kexec/test_kexec_file_load.sh
new file mode 100755
index 000000000000..c9ccb3c93d72
--- /dev/null
+++ b/tools/testing/selftests/kexec/test_kexec_file_load.sh
@@ -0,0 +1,243 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Loading a kernel image via the kexec_file_load syscall can verify either
+# the IMA signature stored in the security.ima xattr or the PE signature,
+# both signatures depending on the IMA policy, or none.
+#
+# To determine whether the kernel image is signed, this test depends
+# on pesign and getfattr.  This test also requires the kernel to be
+# built with CONFIG_IKCONFIG enabled and either CONFIG_IKCONFIG_PROC
+# enabled or access to the extract-ikconfig script.
+
+TEST="KEXEC_FILE_LOAD"
+. ./kexec_common_lib.sh
+
+trap "{ rm -f $IKCONFIG ; }" EXIT
+
+# Some of the IMA builtin policies may require the kexec kernel image to
+# be signed, but these policy rules may be replaced with a custom
+# policy.  Only CONFIG_IMA_APPRAISE_REQUIRE_KEXEC_SIGS persists after
+# loading a custom policy.  Check if it is enabled, before reading the
+# IMA runtime sysfs policy file.
+# Return 1 for IMA signature required and 0 for not required.
+is_ima_sig_required()
+{
+	local ret=0
+
+	kconfig_enabled "CONFIG_IMA_APPRAISE_REQUIRE_KEXEC_SIGS=y" \
+		"IMA kernel image signature required"
+	if [ $? -eq 1 ]; then
+		log_info "IMA signature required"
+		return 1
+	fi
+
+	# The architecture specific or a custom policy may require the
+	# kexec kernel image be signed.  Policy rules are walked
+	# sequentially.  As a result, a policy rule may be defined, but
+	# might not necessarily be used.  This test assumes if a policy
+	# rule is specified, that is the intent.
+
+	# First check for appended signature (modsig), then xattr
+	if [ $ima_read_policy -eq 1 ]; then
+		check_ima_policy "appraise" "func=KEXEC_KERNEL_CHECK" \
+			"appraise_type=imasig|modsig"
+		ret=$?
+		if [ $ret -eq 1 ]; then
+			log_info "IMA or appended(modsig) signature required"
+		else
+			check_ima_policy "appraise" "func=KEXEC_KERNEL_CHECK" \
+				"appraise_type=imasig"
+			ret=$?
+			[ $ret -eq 1 ] && log_info "IMA signature required";
+		fi
+	fi
+	return $ret
+}
+
+# The kexec_file_load_test() is complicated enough, require pesign.
+# Return 1 for PE signature found and 0 for not found.
+check_for_pesig()
+{
+	which pesign > /dev/null 2>&1 || log_skip "pesign not found"
+
+	pesign -i $KERNEL_IMAGE --show-signature | grep -q "No signatures"
+	local ret=$?
+	if [ $ret -eq 1 ]; then
+		log_info "kexec kernel image PE signed"
+	else
+		log_info "kexec kernel image not PE signed"
+	fi
+	return $ret
+}
+
+# The kexec_file_load_test() is complicated enough, require getfattr.
+# Return 1 for IMA signature found and 0 for not found.
+check_for_imasig()
+{
+	local ret=0
+
+	which getfattr > /dev/null 2>&1
+	if [ $?	-eq 1 ]; then
+		log_skip "getfattr not found"
+	fi
+
+	line=$(getfattr -n security.ima -e hex --absolute-names $KERNEL_IMAGE 2>&1)
+	echo $line | grep -q "security.ima=0x03"
+	if [ $? -eq 0 ]; then
+		ret=1
+		log_info "kexec kernel image IMA signed"
+	else
+		log_info "kexec kernel image not IMA signed"
+	fi
+	return $ret
+}
+
+# Return 1 for appended signature (modsig) found and 0 for not found.
+check_for_modsig()
+{
+	local module_sig_string="~Module signature appended~"
+	local ret=0
+
+	tail --bytes $((${#module_sig_string} + 1)) $KERNEL_IMAGE | \
+		grep -q "$module_sig_string"
+	if [ $? -eq 0 ]; then
+		ret=1
+		log_info "kexec kernel image modsig signed"
+	else
+		log_info "kexec kernel image not modsig signed"
+	fi
+	return $ret
+}
+
+kexec_file_load_test()
+{
+	local succeed_msg="kexec_file_load succeeded"
+	local failed_msg="kexec_file_load failed"
+	local key_msg="try enabling the CONFIG_INTEGRITY_PLATFORM_KEYRING"
+
+	line=$(kexec --load --kexec-file-syscall $KERNEL_IMAGE 2>&1)
+
+	if [ $? -eq 0 ]; then
+		kexec --unload --kexec-file-syscall
+
+		# In secureboot mode with an architecture  specific
+		# policy, make sure either an IMA or PE signature exists.
+		if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ] && \
+			[ $ima_signed -eq 0 ] && [ $pe_signed -eq 0 ] \
+			  && [ $ima_modsig -eq 0 ]; then
+			log_fail "$succeed_msg (missing sig)"
+		fi
+
+		if [ $kexec_sig_required -eq 1 -o $pe_sig_required -eq 1 ] \
+		     && [ $pe_signed -eq 0 ]; then
+			log_fail "$succeed_msg (missing PE sig)"
+		fi
+
+		if [ $ima_sig_required -eq 1 ] && [ $ima_signed -eq 0 ] \
+		     && [ $ima_modsig -eq 0 ]; then
+			log_fail "$succeed_msg (missing IMA sig)"
+		fi
+
+		if [ $pe_sig_required -eq 0 ] && [ $ima_appraise -eq 1 ] \
+		    && [ $ima_sig_required -eq 0 ] && [ $ima_signed -eq 0 ] \
+	            && [ $ima_read_policy -eq 0 ]; then
+			log_fail "$succeed_msg (possibly missing IMA sig)"
+		fi
+
+		if [ $pe_sig_required -eq 0 ] && [ $ima_appraise -eq 0 ]; then
+			log_info "No signature verification required"
+		elif [ $pe_sig_required -eq 0 ] && [ $ima_appraise -eq 1 ] \
+		    && [ $ima_sig_required -eq 0 ] && [ $ima_signed -eq 0 ] \
+	            && [ $ima_read_policy -eq 1 ]; then
+			log_info "No signature verification required"
+		fi
+
+		log_pass "$succeed_msg"
+	fi
+
+	# Check the reason for the kexec_file_load failure
+	echo $line | grep -q "Required key not available"
+	if [ $? -eq 0 ]; then
+		if [ $platform_keyring -eq 0 ]; then
+			log_pass "$failed_msg (-ENOKEY), $key_msg"
+		else
+			log_pass "$failed_msg (-ENOKEY)"
+		fi
+	fi
+
+	if [ $kexec_sig_required -eq 1 -o $pe_sig_required -eq 1 ] \
+	     && [ $pe_signed -eq 0 ]; then
+		log_pass "$failed_msg (missing PE sig)"
+	fi
+
+	if [ $ima_sig_required -eq 1 ] && [ $ima_signed -eq 0 ]; then
+		log_pass "$failed_msg (missing IMA sig)"
+	fi
+
+	if [ $pe_sig_required -eq 0 ] && [ $ima_appraise -eq 1 ] \
+	    && [ $ima_sig_required -eq 0 ] && [ $ima_read_policy -eq 0 ] \
+	    && [ $ima_signed -eq 0 ]; then
+		log_pass "$failed_msg (possibly missing IMA sig)"
+	fi
+
+	log_pass "$failed_msg"
+	return 0
+}
+
+# kexec requires root privileges
+require_root_privileges
+
+# get the kernel config
+get_kconfig
+
+kconfig_enabled "CONFIG_KEXEC_FILE=y" "kexec_file_load is enabled"
+if [ $? -eq 0 ]; then
+	log_skip "kexec_file_load is not enabled"
+fi
+
+# Determine which kernel config options are enabled
+kconfig_enabled "CONFIG_IMA_APPRAISE=y" "IMA enabled"
+ima_appraise=$?
+
+kconfig_enabled "CONFIG_IMA_ARCH_POLICY=y" \
+	"architecture specific policy enabled"
+arch_policy=$?
+
+kconfig_enabled "CONFIG_INTEGRITY_PLATFORM_KEYRING=y" \
+	"platform keyring enabled"
+platform_keyring=$?
+
+kconfig_enabled "CONFIG_IMA_READ_POLICY=y" "reading IMA policy permitted"
+ima_read_policy=$?
+
+kconfig_enabled "CONFIG_KEXEC_SIG_FORCE=y" \
+	"kexec signed kernel image required"
+kexec_sig_required=$?
+
+kconfig_enabled "CONFIG_KEXEC_BZIMAGE_VERIFY_SIG=y" \
+	"PE signed kernel image required"
+pe_sig_required=$?
+
+is_ima_sig_required
+ima_sig_required=$?
+
+get_secureboot_mode
+secureboot=$?
+
+# Are there pe and ima signatures
+if [ "$(get_arch)" == 'ppc64le' ]; then
+	pe_signed=0
+else
+	check_for_pesig
+	pe_signed=$?
+fi
+
+check_for_imasig
+ima_signed=$?
+
+check_for_modsig
+ima_modsig=$?
+
+# Test loading the kernel image via kexec_file_load syscall
+kexec_file_load_test
diff --git a/tools/testing/selftests/kexec/test_kexec_jump.c b/tools/testing/selftests/kexec/test_kexec_jump.c
new file mode 100644
index 000000000000..fbce287866f5
--- /dev/null
+++ b/tools/testing/selftests/kexec/test_kexec_jump.c
@@ -0,0 +1,72 @@
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/kexec.h>
+#include <linux/reboot.h>
+#include <sys/reboot.h>
+#include <sys/syscall.h>
+
+asm(
+    "  .code64\n"
+    "  .data\n"
+    "purgatory_start:\n"
+
+    // Trigger kexec debug exception handling
+    "  int3\n"
+
+    // Set load address for next time
+    "  leaq purgatory_start_b(%rip), %r11\n"
+    "  movq %r11, 8(%rsp)\n"
+
+    // Back to Linux
+    "  ret\n"
+
+    // Same again
+    "purgatory_start_b:\n"
+
+    // Trigger kexec debug exception handling
+    "  int3\n"
+
+    // Set load address for next time
+    "  leaq purgatory_start(%rip), %r11\n"
+    "  movq %r11, 8(%rsp)\n"
+
+    // Back to Linux
+    "  ret\n"
+
+    "purgatory_end:\n"
+    ".previous"
+);
+extern char purgatory_start[], purgatory_end[];
+
+int main (void)
+{
+        struct kexec_segment segment = {};
+	int ret;
+
+	segment.buf = purgatory_start;
+	segment.bufsz = purgatory_end - purgatory_start;
+	segment.mem = (void *)0x400000;
+	segment.memsz = 0x1000;
+	ret = syscall(__NR_kexec_load, 0x400000, 1, &segment, KEXEC_PRESERVE_CONTEXT);
+	if (ret) {
+		perror("kexec_load");
+		exit(1);
+	}
+
+	ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
+	if (ret) {
+		perror("kexec reboot");
+		exit(1);
+	}
+
+	ret = syscall(__NR_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, LINUX_REBOOT_CMD_KEXEC);
+	if (ret) {
+		perror("kexec reboot");
+		exit(1);
+	}
+	printf("Success\n");
+	return 0;
+}
+
diff --git a/tools/testing/selftests/kexec/test_kexec_jump.sh b/tools/testing/selftests/kexec/test_kexec_jump.sh
new file mode 100755
index 000000000000..6ae977054ba2
--- /dev/null
+++ b/tools/testing/selftests/kexec/test_kexec_jump.sh
@@ -0,0 +1,42 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Prevent loading a kernel image via the kexec_load syscall when
+# signatures are required.  (Dependent on CONFIG_IMA_ARCH_POLICY.)
+
+TEST="$0"
+. ./kexec_common_lib.sh
+
+# kexec requires root privileges
+require_root_privileges
+
+# get the kernel config
+get_kconfig
+
+kconfig_enabled "CONFIG_KEXEC_JUMP=y" "kexec_jump is enabled"
+if [ $? -eq 0 ]; then
+	log_skip "kexec_jump is not enabled"
+fi
+
+kconfig_enabled "CONFIG_IMA_APPRAISE=y" "IMA enabled"
+ima_appraise=$?
+
+kconfig_enabled "CONFIG_IMA_ARCH_POLICY=y" \
+	"IMA architecture specific policy enabled"
+arch_policy=$?
+
+get_secureboot_mode
+secureboot=$?
+
+if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ]; then
+    log_skip "Secure boot and CONFIG_IMA_ARCH_POLICY are enabled"
+fi
+
+./test_kexec_jump
+if [ $? -eq 0 ]; then
+    log_pass "kexec_jump succeeded"
+else
+    # The more likely failure mode if anything went wrong is that the
+    # kernel just crashes. But if we get back here, sure, whine anyway.
+    log_fail "kexec_jump failed"
+fi
diff --git a/tools/testing/selftests/kexec/test_kexec_load.sh b/tools/testing/selftests/kexec/test_kexec_load.sh
new file mode 100755
index 000000000000..49c6aa929137
--- /dev/null
+++ b/tools/testing/selftests/kexec/test_kexec_load.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Prevent loading a kernel image via the kexec_load syscall when
+# signatures are required.  (Dependent on CONFIG_IMA_ARCH_POLICY.)
+
+TEST="$0"
+. ./kexec_common_lib.sh
+
+# kexec requires root privileges
+require_root_privileges
+
+# get the kernel config
+get_kconfig
+
+kconfig_enabled "CONFIG_KEXEC=y" "kexec_load is enabled"
+if [ $? -eq 0 ]; then
+	log_skip "kexec_load is not enabled"
+fi
+
+kconfig_enabled "CONFIG_IMA_APPRAISE=y" "IMA enabled"
+ima_appraise=$?
+
+kconfig_enabled "CONFIG_IMA_ARCH_POLICY=y" \
+	"IMA architecture specific policy enabled"
+arch_policy=$?
+
+get_secureboot_mode
+secureboot=$?
+
+# kexec_load should fail in secure boot mode and CONFIG_IMA_ARCH_POLICY enabled
+kexec --load $KERNEL_IMAGE > /dev/null 2>&1
+if [ $? -eq 0 ]; then
+	kexec --unload
+	if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ]; then
+		log_fail "kexec_load succeeded"
+	elif [ $ima_appraise -eq 0 -o $arch_policy -eq 0 ]; then
+		log_info "Either IMA or the IMA arch policy is not enabled"
+	fi
+	log_pass "kexec_load succeeded"
+else
+	if [ $secureboot -eq 1 ] && [ $arch_policy -eq 1 ] ; then
+		log_pass "kexec_load failed"
+	else
+		log_fail "kexec_load failed"
+	fi
+fi
diff --git a/tools/testing/selftests/kho/arm64.conf b/tools/testing/selftests/kho/arm64.conf
new file mode 100644
index 000000000000..ee696807cd35
--- /dev/null
+++ b/tools/testing/selftests/kho/arm64.conf
@@ -0,0 +1,9 @@
+QEMU_CMD="qemu-system-aarch64 -M virt -cpu max"
+QEMU_KCONFIG="
+CONFIG_SERIAL_AMBA_PL010=y
+CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+"
+KERNEL_IMAGE="Image"
+KERNEL_CMDLINE="console=ttyAMA0"
diff --git a/tools/testing/selftests/kho/init.c b/tools/testing/selftests/kho/init.c
new file mode 100644
index 000000000000..6d9e91d55d68
--- /dev/null
+++ b/tools/testing/selftests/kho/init.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/syscall.h>
+#include <sys/mount.h>
+#include <sys/reboot.h>
+#include <linux/kexec.h>
+
+/* from arch/x86/include/asm/setup.h */
+#define COMMAND_LINE_SIZE	2048
+
+#define KHO_FINALIZE "/debugfs/kho/out/finalize"
+#define KERNEL_IMAGE "/kernel"
+
+static int mount_filesystems(void)
+{
+	if (mount("debugfs", "/debugfs", "debugfs", 0, NULL) < 0)
+		return -1;
+
+	return mount("proc", "/proc", "proc", 0, NULL);
+}
+
+static int kho_enable(void)
+{
+	const char enable[] = "1";
+	int fd;
+
+	fd = open(KHO_FINALIZE, O_RDWR);
+	if (fd < 0)
+		return -1;
+
+	if (write(fd, enable, sizeof(enable)) != sizeof(enable))
+		return 1;
+
+	close(fd);
+	return 0;
+}
+
+static long kexec_file_load(int kernel_fd, int initrd_fd,
+			    unsigned long cmdline_len, const char *cmdline,
+			    unsigned long flags)
+{
+	return syscall(__NR_kexec_file_load, kernel_fd, initrd_fd, cmdline_len,
+		       cmdline, flags);
+}
+
+static int kexec_load(void)
+{
+	char cmdline[COMMAND_LINE_SIZE];
+	ssize_t len;
+	int fd, err;
+
+	fd = open("/proc/cmdline", O_RDONLY);
+	if (fd < 0)
+		return -1;
+
+	len = read(fd, cmdline, sizeof(cmdline));
+	close(fd);
+	if (len < 0)
+		return -1;
+
+	/* replace \n with \0 */
+	cmdline[len - 1] = 0;
+	fd = open(KERNEL_IMAGE, O_RDONLY);
+	if (fd < 0)
+		return -1;
+
+	err = kexec_file_load(fd, -1, len, cmdline, KEXEC_FILE_NO_INITRAMFS);
+	close(fd);
+
+	return err ? : 0;
+}
+
+int main(int argc, char *argv[])
+{
+	if (mount_filesystems())
+		goto err_reboot;
+
+	if (kho_enable())
+		goto err_reboot;
+
+	if (kexec_load())
+		goto err_reboot;
+
+	if (reboot(RB_KEXEC))
+		goto err_reboot;
+
+	return 0;
+
+err_reboot:
+	reboot(RB_AUTOBOOT);
+	return -1;
+}
diff --git a/tools/testing/selftests/kho/vmtest.sh b/tools/testing/selftests/kho/vmtest.sh
new file mode 100755
index 000000000000..49fdac8e8b15
--- /dev/null
+++ b/tools/testing/selftests/kho/vmtest.sh
@@ -0,0 +1,186 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -ue
+
+CROSS_COMPILE="${CROSS_COMPILE:-""}"
+
+test_dir=$(realpath "$(dirname "$0")")
+kernel_dir=$(realpath "$test_dir/../../../..")
+
+tmp_dir=$(mktemp -d /tmp/kho-test.XXXXXXXX)
+headers_dir="$tmp_dir/usr"
+initrd="$tmp_dir/initrd.cpio"
+
+source "$test_dir/../kselftest/ktap_helpers.sh"
+
+function usage() {
+	cat <<EOF
+$0 [-d build_dir] [-j jobs] [-t target_arch] [-h]
+Options:
+	-d)	path to the kernel build directory
+	-j)	number of jobs for compilation, similar to -j in make
+	-t)	run test for target_arch, requires CROSS_COMPILE set
+		supported targets: aarch64, x86_64
+	-h)	display this help
+EOF
+}
+
+function cleanup() {
+	rm -fr "$tmp_dir"
+	ktap_finished
+}
+trap cleanup EXIT
+
+function skip() {
+	local msg=${1:-""}
+
+	ktap_test_skip "$msg"
+	exit "$KSFT_SKIP"
+}
+
+function fail() {
+	local msg=${1:-""}
+
+	ktap_test_fail "$msg"
+	exit "$KSFT_FAIL"
+}
+
+function build_kernel() {
+	local build_dir=$1
+	local make_cmd=$2
+	local arch_kconfig=$3
+	local kimage=$4
+
+	local kho_config="$tmp_dir/kho.config"
+	local kconfig="$build_dir/.config"
+
+	# enable initrd, KHO and KHO test in kernel configuration
+	tee "$kconfig" > "$kho_config" <<EOF
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_KEXEC_HANDOVER=y
+CONFIG_KEXEC_HANDOVER_DEBUGFS=y
+CONFIG_TEST_KEXEC_HANDOVER=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_VM=y
+$arch_kconfig
+EOF
+
+	make_cmd="$make_cmd -C $kernel_dir O=$build_dir"
+	$make_cmd olddefconfig
+
+	# verify that kernel confiration has all necessary options
+	while read -r opt ; do
+		grep "$opt" "$kconfig" &>/dev/null || skip "$opt is missing"
+	done < "$kho_config"
+
+	$make_cmd "$kimage"
+	$make_cmd headers_install INSTALL_HDR_PATH="$headers_dir"
+}
+
+function mkinitrd() {
+	local kernel=$1
+
+	"$CROSS_COMPILE"gcc -s -static -Os -nostdinc -nostdlib \
+			-fno-asynchronous-unwind-tables -fno-ident \
+			-I "$headers_dir/include" \
+			-I "$kernel_dir/tools/include/nolibc" \
+			-o "$tmp_dir/init" "$test_dir/init.c"
+
+	cat > "$tmp_dir/cpio_list" <<EOF
+dir /dev 0755 0 0
+dir /proc 0755 0 0
+dir /debugfs 0755 0 0
+nod /dev/console 0600 0 0 c 5 1
+file /init $tmp_dir/init 0755 0 0
+file /kernel $kernel 0644 0 0
+EOF
+
+	"$build_dir/usr/gen_init_cpio" "$tmp_dir/cpio_list" > "$initrd"
+}
+
+function run_qemu() {
+	local qemu_cmd=$1
+	local cmdline=$2
+	local kernel=$3
+	local serial="$tmp_dir/qemu.serial"
+
+	cmdline="$cmdline kho=on panic=-1"
+
+	$qemu_cmd -m 1G -smp 2 -no-reboot -nographic -nodefaults \
+		  -accel kvm -accel hvf -accel tcg  \
+		  -serial file:"$serial" \
+		  -append "$cmdline" \
+		  -kernel "$kernel" \
+		  -initrd "$initrd"
+
+	grep "KHO restore succeeded" "$serial" &> /dev/null || fail "KHO failed"
+}
+
+function target_to_arch() {
+	local target=$1
+
+	case $target in
+	     aarch64) echo "arm64" ;;
+	     x86_64) echo "x86" ;;
+	     *) skip "architecture $target is not supported"
+	esac
+}
+
+function main() {
+	local build_dir="$kernel_dir/.kho"
+	local jobs=$(($(nproc) * 2))
+	local target="$(uname -m)"
+
+	# skip the test if any of the preparation steps fails
+	set -o errtrace
+	trap skip ERR
+
+	while getopts 'hd:j:t:' opt; do
+		case $opt in
+		d)
+			build_dir="$OPTARG"
+			;;
+		j)
+		        jobs="$OPTARG"
+			;;
+		t)
+			target="$OPTARG"
+			;;
+		h)
+			usage
+			exit 0
+			;;
+		*)
+			echo Unknown argument "$opt"
+			usage
+			exit 1
+			;;
+		esac
+	done
+
+	ktap_print_header
+	ktap_set_plan 1
+
+	if [[ "$target" != "$(uname -m)" ]] && [[ -z "$CROSS_COMPILE" ]]; then
+		skip "Cross-platform testing needs to specify CROSS_COMPILE"
+	fi
+
+	mkdir -p "$build_dir"
+	local arch=$(target_to_arch "$target")
+	source "$test_dir/$arch.conf"
+
+	# build the kernel and create initrd
+	# initrd includes the kernel image that will be kexec'ed
+	local make_cmd="make ARCH=$arch CROSS_COMPILE=$CROSS_COMPILE -j$jobs"
+	build_kernel "$build_dir" "$make_cmd" "$QEMU_KCONFIG" "$KERNEL_IMAGE"
+
+	local kernel="$build_dir/arch/$arch/boot/$KERNEL_IMAGE"
+	mkinitrd "$kernel"
+
+	run_qemu "$QEMU_CMD" "$KERNEL_CMDLINE" "$kernel"
+
+	ktap_test_pass "KHO succeeded"
+}
+
+main "$@"
diff --git a/tools/testing/selftests/kho/x86.conf b/tools/testing/selftests/kho/x86.conf
new file mode 100644
index 000000000000..b419e610ca22
--- /dev/null
+++ b/tools/testing/selftests/kho/x86.conf
@@ -0,0 +1,7 @@
+QEMU_CMD=qemu-system-x86_64
+QEMU_KCONFIG="
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+"
+KERNEL_IMAGE="bzImage"
+KERNEL_CMDLINE="console=ttyS0"
diff --git a/tools/testing/selftests/kmod/Makefile b/tools/testing/selftests/kmod/Makefile
new file mode 100644
index 000000000000..5b3e746a0bee
--- /dev/null
+++ b/tools/testing/selftests/kmod/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for kmod loading selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+TEST_PROGS := kmod.sh
+
+include ../lib.mk
+
+# Nothing to clean up.
+clean:
diff --git a/tools/testing/selftests/kmod/config b/tools/testing/selftests/kmod/config
new file mode 100644
index 000000000000..1f1e63494af9
--- /dev/null
+++ b/tools/testing/selftests/kmod/config
@@ -0,0 +1,2 @@
+CONFIG_TEST_KMOD=m
+CONFIG_TEST_LKM=m
diff --git a/tools/testing/selftests/kmod/kmod.sh b/tools/testing/selftests/kmod/kmod.sh
new file mode 100755
index 000000000000..7189715d7960
--- /dev/null
+++ b/tools/testing/selftests/kmod/kmod.sh
@@ -0,0 +1,678 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
+# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+#
+# This is a stress test script for kmod, the kernel module loader. It uses
+# test_kmod which exposes a series of knobs for the API for us so we can
+# tweak each test in userspace rather than in kernelspace.
+#
+# The way kmod works is it uses the kernel's usermode helper API to eventually
+# call /sbin/modprobe. It has a limit of the number of concurrent calls
+# possible. The kernel interface to load modules is request_module(), however
+# mount uses get_fs_type(). Both behave slightly differently, but the
+# differences are important enough to test each call separately. For this
+# reason test_kmod starts by providing tests for both calls.
+#
+# The test driver test_kmod assumes a series of defaults which you can
+# override by exporting to your environment prior running this script.
+# For instance this script assumes you do not have xfs loaded upon boot.
+# If this is false, export DEFAULT_KMOD_FS="ext4" prior to running this
+# script if the filesystem module you don't have loaded upon bootup
+# is ext4 instead. Refer to allow_user_defaults() for a list of user
+# override variables possible.
+#
+# You'll want at least 4 GiB of RAM to expect to run these tests
+# without running out of memory on them. For other requirements refer
+# to test_reqs()
+
+set -e
+
+TEST_NAME="kmod"
+TEST_DRIVER="test_${TEST_NAME}"
+TEST_DIR=$(dirname $0)
+
+# This represents
+#
+# TEST_ID:TEST_COUNT:ENABLED
+#
+# TEST_ID: is the test id number
+# TEST_COUNT: number of times we should run the test
+# ENABLED: 1 if enabled, 0 otherwise
+#
+# Once these are enabled please leave them as-is. Write your own test,
+# we have tons of space.
+ALL_TESTS="0001:3:1"
+ALL_TESTS="$ALL_TESTS 0002:3:1"
+ALL_TESTS="$ALL_TESTS 0003:1:1"
+ALL_TESTS="$ALL_TESTS 0004:1:1"
+ALL_TESTS="$ALL_TESTS 0005:10:1"
+ALL_TESTS="$ALL_TESTS 0006:10:1"
+ALL_TESTS="$ALL_TESTS 0007:5:1"
+ALL_TESTS="$ALL_TESTS 0008:150:1"
+ALL_TESTS="$ALL_TESTS 0009:150:1"
+ALL_TESTS="$ALL_TESTS 0010:1:1"
+ALL_TESTS="$ALL_TESTS 0011:1:1"
+ALL_TESTS="$ALL_TESTS 0012:1:1"
+ALL_TESTS="$ALL_TESTS 0013:1:1"
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+test_modprobe()
+{
+       if [ ! -d $DIR ]; then
+               echo "$0: $DIR not present" >&2
+               echo "You must have the following enabled in your kernel:" >&2
+               cat $TEST_DIR/config >&2
+               exit $ksft_skip
+       fi
+}
+
+function allow_user_defaults()
+{
+	if [ -z $DEFAULT_KMOD_DRIVER ]; then
+		DEFAULT_KMOD_DRIVER="test_module"
+	fi
+
+	if [ -z $DEFAULT_KMOD_FS ]; then
+		DEFAULT_KMOD_FS="xfs"
+	fi
+
+	if [ -z $PROC_DIR ]; then
+		PROC_DIR="/proc/sys/kernel/"
+	fi
+
+	if [ -z $MODPROBE_LIMIT ]; then
+		MODPROBE_LIMIT=50
+	fi
+
+	if [ -z $DIR ]; then
+		DIR="/sys/devices/virtual/misc/${TEST_DRIVER}0/"
+	fi
+
+	if [ -z $DEFAULT_NUM_TESTS ]; then
+		DEFAULT_NUM_TESTS=150
+	fi
+
+	MODPROBE_LIMIT_FILE="${PROC_DIR}/kmod-limit"
+}
+
+test_reqs()
+{
+	if ! which modprobe 2> /dev/null > /dev/null; then
+		echo "$0: You need modprobe installed" >&2
+		exit $ksft_skip
+	fi
+
+	if ! which kmod 2> /dev/null > /dev/null; then
+		echo "$0: You need kmod installed" >&2
+		exit $ksft_skip
+	fi
+
+	# kmod 19 has a bad bug where it returns 0 when modprobe
+	# gets called *even* if the module was not loaded due to
+	# some bad heuristics. For details see:
+	#
+	# A work around is possible in-kernel but its rather
+	# complex.
+	KMOD_VERSION=$(kmod --version | awk '{print $3}')
+	if [[ $KMOD_VERSION  -le 19 ]]; then
+		echo "$0: You need at least kmod 20" >&2
+		echo "kmod <= 19 is buggy, for details see:" >&2
+		echo "https://git.kernel.org/cgit/utils/kernel/kmod/kmod.git/commit/libkmod/libkmod-module.c?id=fd44a98ae2eb5eb32161088954ab21e58e19dfc4" >&2
+		exit $ksft_skip
+	fi
+
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $msg must be run as root >&2
+		exit $ksft_skip
+	fi
+}
+
+function load_req_mod()
+{
+	trap "test_modprobe" EXIT
+
+	if [ ! -d $DIR ]; then
+		# Alanis: "Oh isn't it ironic?"
+		modprobe $TEST_DRIVER
+	fi
+}
+
+test_finish()
+{
+	echo "$MODPROBE" > /proc/sys/kernel/modprobe
+	echo "Test completed"
+}
+
+errno_name_to_val()
+{
+	case "$1" in
+	# kmod calls modprobe and upon of a module not found
+	# modprobe returns just 1... However in the kernel we
+	# *sometimes* see 256...
+	MODULE_NOT_FOUND)
+		echo 256;;
+	SUCCESS)
+		echo 0;;
+	-EPERM)
+		echo -1;;
+	-ENOENT)
+		echo -2;;
+	-EINVAL)
+		echo -22;;
+	-ERR_ANY)
+		echo -123456;;
+	*)
+		echo invalid;;
+	esac
+}
+
+errno_val_to_name()
+	case "$1" in
+	256)
+		echo MODULE_NOT_FOUND;;
+	0)
+		echo SUCCESS;;
+	-1)
+		echo -EPERM;;
+	-2)
+		echo -ENOENT;;
+	-22)
+		echo -EINVAL;;
+	-123456)
+		echo -ERR_ANY;;
+	*)
+		echo invalid;;
+	esac
+
+config_set_test_case_driver()
+{
+	if ! echo -n 1 >$DIR/config_test_case; then
+		echo "$0: Unable to set to test case to driver" >&2
+		exit 1
+	fi
+}
+
+config_set_test_case_fs()
+{
+	if ! echo -n 2 >$DIR/config_test_case; then
+		echo "$0: Unable to set to test case to fs" >&2
+		exit 1
+	fi
+}
+
+config_num_threads()
+{
+	if ! echo -n $1 >$DIR/config_num_threads; then
+		echo "$0: Unable to set to number of threads" >&2
+		exit 1
+	fi
+}
+
+config_get_modprobe_limit()
+{
+	if [[ -f ${MODPROBE_LIMIT_FILE} ]] ; then
+		MODPROBE_LIMIT=$(cat $MODPROBE_LIMIT_FILE)
+	fi
+	echo $MODPROBE_LIMIT
+}
+
+config_num_thread_limit_extra()
+{
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA_LIMIT=$MODPROBE_LIMIT+$1
+	config_num_threads $EXTRA_LIMIT
+}
+
+# For special characters use printf directly,
+# refer to kmod_test_0001
+config_set_driver()
+{
+	if ! echo -n $1 >$DIR/config_test_driver; then
+		echo "$0: Unable to set driver" >&2
+		exit 1
+	fi
+}
+
+config_set_fs()
+{
+	if ! echo -n $1 >$DIR/config_test_fs; then
+		echo "$0: Unable to set driver" >&2
+		exit 1
+	fi
+}
+
+config_get_driver()
+{
+	cat $DIR/config_test_driver
+}
+
+config_get_test_result()
+{
+	cat $DIR/test_result
+}
+
+config_reset()
+{
+	if ! echo -n "1" >"$DIR"/reset; then
+		echo "$0: reset should have worked" >&2
+		exit 1
+	fi
+}
+
+config_show_config()
+{
+	echo "----------------------------------------------------"
+	cat "$DIR"/config
+	echo "----------------------------------------------------"
+}
+
+config_trigger()
+{
+	if ! echo -n "1" >"$DIR"/trigger_config 2>/dev/null; then
+		echo "$1: FAIL - loading should have worked"
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - loading kmod test"
+}
+
+config_trigger_want_fail()
+{
+	if echo "1" > $DIR/trigger_config 2>/dev/null; then
+		echo "$1: FAIL - test case was expected to fail"
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - kmod test case failed as expected"
+}
+
+config_expect_result()
+{
+	RC=$(config_get_test_result)
+	RC_NAME=$(errno_val_to_name $RC)
+
+	ERRNO_NAME=$2
+	ERRNO=$(errno_name_to_val $ERRNO_NAME)
+
+	if [[ $ERRNO_NAME = "-ERR_ANY" ]]; then
+		if [[ $RC -ge 0 ]]; then
+			echo "$1: FAIL, test expects $ERRNO_NAME - got $RC_NAME ($RC)" >&2
+			config_show_config
+			exit 1
+		fi
+	elif [[ $RC != $ERRNO ]]; then
+		echo "$1: FAIL, test expects $ERRNO_NAME ($ERRNO) - got $RC_NAME ($RC)" >&2
+		config_show_config
+		exit 1
+	fi
+	echo "$1: OK! - Return value: $RC ($RC_NAME), expected $ERRNO_NAME"
+}
+
+kmod_defaults_driver()
+{
+	config_reset
+	modprobe -r $DEFAULT_KMOD_DRIVER
+	config_set_driver $DEFAULT_KMOD_DRIVER
+}
+
+kmod_defaults_fs()
+{
+	config_reset
+	modprobe -r $DEFAULT_KMOD_FS
+	config_set_fs $DEFAULT_KMOD_FS
+	config_set_test_case_fs
+}
+
+kmod_test_0001_driver()
+{
+	NAME='\000'
+
+	kmod_defaults_driver
+	config_num_threads 1
+	printf $NAME >"$DIR"/config_test_driver
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
+}
+
+kmod_test_0001_fs()
+{
+	NAME='\000'
+
+	kmod_defaults_fs
+	config_num_threads 1
+	printf $NAME >"$DIR"/config_test_fs
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -EINVAL
+}
+
+kmod_test_0001()
+{
+	kmod_test_0001_driver
+	kmod_test_0001_fs
+}
+
+kmod_test_0002_driver()
+{
+	NAME="nope-$DEFAULT_KMOD_DRIVER"
+
+	kmod_defaults_driver
+	config_set_driver $NAME
+	config_num_threads 1
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} MODULE_NOT_FOUND
+}
+
+kmod_test_0002_fs()
+{
+	NAME="nope-$DEFAULT_KMOD_FS"
+
+	kmod_defaults_fs
+	config_set_fs $NAME
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -EINVAL
+}
+
+kmod_test_0002()
+{
+	kmod_test_0002_driver
+	kmod_test_0002_fs
+}
+
+kmod_test_0003()
+{
+	kmod_defaults_fs
+	config_num_threads 1
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0004()
+{
+	kmod_defaults_fs
+	config_num_threads 2
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0005()
+{
+	kmod_defaults_driver
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0006()
+{
+	kmod_defaults_fs
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0007()
+{
+	kmod_test_0005
+	kmod_test_0006
+}
+
+kmod_test_0008()
+{
+	kmod_defaults_driver
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA=$MODPROBE_LIMIT/6
+	config_num_thread_limit_extra $EXTRA
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0009()
+{
+	kmod_defaults_fs
+	MODPROBE_LIMIT=$(config_get_modprobe_limit)
+	let EXTRA=$MODPROBE_LIMIT/4
+	config_num_thread_limit_extra $EXTRA
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} SUCCESS
+}
+
+kmod_test_0010()
+{
+	kmod_defaults_driver
+	config_num_threads 1
+	echo "/KMOD_TEST_NONEXISTENT" > /proc/sys/kernel/modprobe
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -ENOENT
+	echo "$MODPROBE" > /proc/sys/kernel/modprobe
+}
+
+kmod_test_0011()
+{
+	kmod_defaults_driver
+	config_num_threads 1
+	# This causes the kernel to not even try executing modprobe.  The error
+	# code is still -ENOENT like when modprobe doesn't exist, so we can't
+	# easily test for the exact difference.  But this still is a useful test
+	# since there was a bug where request_module() returned 0 in this case.
+	echo > /proc/sys/kernel/modprobe
+	config_trigger ${FUNCNAME[0]}
+	config_expect_result ${FUNCNAME[0]} -ENOENT
+	echo "$MODPROBE" > /proc/sys/kernel/modprobe
+}
+
+kmod_check_visibility()
+{
+	local name="$1"
+	local cmd="$2"
+
+	modprobe $DEFAULT_KMOD_DRIVER
+
+	local priv=$(eval $cmd)
+	local unpriv=$(capsh --drop=CAP_SYSLOG -- -c "$cmd")
+
+	if [ "$priv" = "$unpriv" ] || \
+	   [ "${priv:0:3}" = "0x0" ] || \
+	   [ "${unpriv:0:3}" != "0x0" ] ; then
+		echo "${FUNCNAME[0]}: FAIL, $name visible to unpriv: '$priv' vs '$unpriv'" >&2
+		exit 1
+	else
+		echo "${FUNCNAME[0]}: OK!"
+	fi
+}
+
+kmod_test_0012()
+{
+	kmod_check_visibility /proc/modules \
+		"grep '^${DEFAULT_KMOD_DRIVER}\b' /proc/modules | awk '{print \$NF}'"
+}
+
+kmod_test_0013()
+{
+	kmod_check_visibility '/sys/module/*/sections/*' \
+		"cat /sys/module/${DEFAULT_KMOD_DRIVER}/sections/.*text | head -n1"
+}
+
+list_tests()
+{
+	echo "Test ID list:"
+	echo
+	echo "TEST_ID x NUM_TEST"
+	echo "TEST_ID:   Test ID"
+	echo "NUM_TESTS: Number of recommended times to run the test"
+	echo
+	echo "0001 x $(get_test_count 0001) - Simple test - 1 thread  for empty string"
+	echo "0002 x $(get_test_count 0002) - Simple test - 1 thread  for modules/filesystems that do not exist"
+	echo "0003 x $(get_test_count 0003) - Simple test - 1 thread  for get_fs_type() only"
+	echo "0004 x $(get_test_count 0004) - Simple test - 2 threads for get_fs_type() only"
+	echo "0005 x $(get_test_count 0005) - multithreaded tests with default setup - request_module() only"
+	echo "0006 x $(get_test_count 0006) - multithreaded tests with default setup - get_fs_type() only"
+	echo "0007 x $(get_test_count 0007) - multithreaded tests with default setup test request_module() and get_fs_type()"
+	echo "0008 x $(get_test_count 0008) - multithreaded - push kmod_concurrent over max_modprobes for request_module()"
+	echo "0009 x $(get_test_count 0009) - multithreaded - push kmod_concurrent over max_modprobes for get_fs_type()"
+	echo "0010 x $(get_test_count 0010) - test nonexistent modprobe path"
+	echo "0011 x $(get_test_count 0011) - test completely disabling module autoloading"
+	echo "0012 x $(get_test_count 0012) - test /proc/modules address visibility under CAP_SYSLOG"
+	echo "0013 x $(get_test_count 0013) - test /sys/module/*/sections/* visibility under CAP_SYSLOG"
+}
+
+usage()
+{
+	NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
+	let NUM_TESTS=$NUM_TESTS+1
+	MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
+	echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
+	echo "		 [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
+	echo "           [ all ] [ -h | --help ] [ -l ]"
+	echo ""
+	echo "Valid tests: 0001-$MAX_TEST"
+	echo ""
+	echo "    all     Runs all tests (default)"
+	echo "    -t      Run test ID the number amount of times is recommended"
+	echo "    -w      Watch test ID run until it runs into an error"
+	echo "    -s      Run test ID once"
+	echo "    -c      Run test ID x test-count number of times"
+	echo "    -l      List all test ID list"
+	echo " -h|--help  Help"
+	echo
+	echo "If an error every occurs execution will immediately terminate."
+	echo "If you are adding a new test try using -w <test-ID> first to"
+	echo "make sure the test passes a series of tests."
+	echo
+	echo Example uses:
+	echo
+	echo "${TEST_NAME}.sh		-- executes all tests"
+	echo "${TEST_NAME}.sh -t 0008	-- Executes test ID 0008 number of times is recommended"
+	echo "${TEST_NAME}.sh -w 0008	-- Watch test ID 0008 run until an error occurs"
+	echo "${TEST_NAME}.sh -s 0008	-- Run test ID 0008 once"
+	echo "${TEST_NAME}.sh -c 0008 3	-- Run test ID 0008 three times"
+	echo
+	list_tests
+	exit 1
+}
+
+function test_num()
+{
+	re='^[0-9]+$'
+	if ! [[ $1 =~ $re ]]; then
+		usage
+	fi
+}
+
+function get_test_data()
+{
+	test_num $1
+	local field_num=$(echo $1 | sed 's/^0*//')
+	echo $ALL_TESTS | awk '{print $'$field_num'}'
+}
+
+function get_test_count()
+{
+	TEST_DATA=$(get_test_data $1)
+	LAST_TWO=${TEST_DATA#*:*}
+	echo ${LAST_TWO%:*}
+}
+
+function get_test_enabled()
+{
+	TEST_DATA=$(get_test_data $1)
+	echo ${TEST_DATA#*:*:}
+}
+
+function run_all_tests()
+{
+	for i in $ALL_TESTS ; do
+		TEST_ID=${i%:*:*}
+		ENABLED=$(get_test_enabled $TEST_ID)
+		TEST_COUNT=$(get_test_count $TEST_ID)
+		if [[ $ENABLED -eq "1" ]]; then
+			test_case $TEST_ID $TEST_COUNT
+		fi
+	done
+}
+
+function watch_log()
+{
+	if [ $# -ne 3 ]; then
+		clear
+	fi
+	date
+	echo "Running test: $2 - run #$1"
+}
+
+function watch_case()
+{
+	i=0
+	while [ 1 ]; do
+
+		if [ $# -eq 1 ]; then
+			test_num $1
+			watch_log $i ${TEST_NAME}_test_$1
+			${TEST_NAME}_test_$1
+		else
+			watch_log $i all
+			run_all_tests
+		fi
+		let i=$i+1
+	done
+}
+
+function test_case()
+{
+	NUM_TESTS=$DEFAULT_NUM_TESTS
+	if [ $# -eq 2 ]; then
+		NUM_TESTS=$2
+	fi
+
+	i=0
+	while [ $i -lt $NUM_TESTS ]; do
+		test_num $1
+		watch_log $i ${TEST_NAME}_test_$1 noclear
+		RUN_TEST=${TEST_NAME}_test_$1
+		$RUN_TEST
+		let i=$i+1
+	done
+}
+
+function parse_args()
+{
+	if [ $# -eq 0 ]; then
+		run_all_tests
+	else
+		if [[ "$1" = "all" ]]; then
+			run_all_tests
+		elif [[ "$1" = "-w" ]]; then
+			shift
+			watch_case $@
+		elif [[ "$1" = "-t" ]]; then
+			shift
+			test_num $1
+			test_case $1 $(get_test_count $1)
+		elif [[ "$1" = "-c" ]]; then
+			shift
+			test_num $1
+			test_num $2
+			test_case $1 $2
+		elif [[ "$1" = "-s" ]]; then
+			shift
+			test_case $1 1
+		elif [[ "$1" = "-l" ]]; then
+			list_tests
+		elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
+			usage
+		else
+			usage
+		fi
+	fi
+}
+
+test_reqs
+allow_user_defaults
+load_req_mod
+
+MODPROBE=$(</proc/sys/kernel/modprobe)
+trap "test_finish" EXIT
+
+parse_args $@
+
+exit 0
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h
index ef1c80d67ac7..afbcf8412ae5 100644
--- a/tools/testing/selftests/kselftest.h
+++ b/tools/testing/selftests/kselftest.h
@@ -1,17 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
- * kselftest.h:	kselftest framework return codes to include from
- *		selftests.
+ * kselftest.h:	low-level kselftest framework to include from
+ *		selftest programs. When possible, please use
+ *		kselftest_harness.h instead.
  *
  * Copyright (c) 2014 Shuah Khan <shuahkh@osg.samsung.com>
  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
  *
- * This file is released under the GPLv2.
+ * Using this API consists of first counting how many tests your code
+ * has to run, and then starting up the reporting:
+ *
+ *     ksft_print_header();
+ *     ksft_set_plan(total_number_of_tests);
+ *
+ * For each test, report any progress, debugging, etc with:
+ *
+ *     ksft_print_msg(fmt, ...);
+ *     ksft_perror(msg);
+ *
+ * and finally report the pass/fail/skip/xfail/xpass state of the test
+ * with one of:
+ *
+ *     ksft_test_result(condition, fmt, ...);
+ *     ksft_test_result_report(result, fmt, ...);
+ *     ksft_test_result_pass(fmt, ...);
+ *     ksft_test_result_fail(fmt, ...);
+ *     ksft_test_result_skip(fmt, ...);
+ *     ksft_test_result_xfail(fmt, ...);
+ *     ksft_test_result_xpass(fmt, ...);
+ *     ksft_test_result_error(fmt, ...);
+ *     ksft_test_result_code(exit_code, test_name, fmt, ...);
+ *
+ * When all tests are finished, clean up and exit the program with one of:
+ *
+ *    ksft_finished();
+ *    ksft_exit(condition);
+ *    ksft_exit_pass();
+ *    ksft_exit_fail();
+ *
+ * If the program wants to report details on why the entire program has
+ * failed, it can instead exit with a message (this is usually done when
+ * the program is aborting before finishing all tests):
+ *
+ *    ksft_exit_fail_msg(fmt, ...);
+ *    ksft_exit_fail_perror(msg);
+ *
  */
 #ifndef __KSELFTEST_H
 #define __KSELFTEST_H
 
+#ifndef NOLIBC
+#include <errno.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/utsname.h>
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+/*
+ * gcc cpuid.h provides __cpuid_count() since v4.4.
+ * Clang/LLVM cpuid.h provides  __cpuid_count() since v3.4.0.
+ *
+ * Provide local define for tests needing __cpuid_count() because
+ * selftests need to work in older environments that do not yet
+ * have __cpuid_count().
+ */
+#ifndef __cpuid_count
+#define __cpuid_count(level, count, a, b, c, d)				\
+	__asm__ __volatile__ ("cpuid\n\t"				\
+			      : "=a" (a), "=b" (b), "=c" (c), "=d" (d)	\
+			      : "0" (level), "2" (count))
+#endif
+#endif /* end arch */
 
 /* define kselftest exit codes */
 #define KSFT_PASS  0
@@ -20,6 +88,19 @@
 #define KSFT_XPASS 3
 #define KSFT_SKIP  4
 
+#ifndef __noreturn
+#define __noreturn       __attribute__((__noreturn__))
+#endif
+#define __printf(a, b)   __attribute__((format(printf, a, b)))
+
+#ifndef __always_unused
+#define __always_unused __attribute__((__unused__))
+#endif
+
+#ifndef __maybe_unused
+#define __maybe_unused __attribute__((__unused__))
+#endif
+
 /* counters */
 struct ksft_count {
 	unsigned int ksft_pass;
@@ -27,43 +108,371 @@ struct ksft_count {
 	unsigned int ksft_xfail;
 	unsigned int ksft_xpass;
 	unsigned int ksft_xskip;
+	unsigned int ksft_error;
 };
 
 static struct ksft_count ksft_cnt;
+static unsigned int ksft_plan;
+static bool ksft_debug_enabled;
+
+static inline unsigned int ksft_test_num(void)
+{
+	return ksft_cnt.ksft_pass + ksft_cnt.ksft_fail +
+		ksft_cnt.ksft_xfail + ksft_cnt.ksft_xpass +
+		ksft_cnt.ksft_xskip + ksft_cnt.ksft_error;
+}
 
 static inline void ksft_inc_pass_cnt(void) { ksft_cnt.ksft_pass++; }
 static inline void ksft_inc_fail_cnt(void) { ksft_cnt.ksft_fail++; }
 static inline void ksft_inc_xfail_cnt(void) { ksft_cnt.ksft_xfail++; }
 static inline void ksft_inc_xpass_cnt(void) { ksft_cnt.ksft_xpass++; }
 static inline void ksft_inc_xskip_cnt(void) { ksft_cnt.ksft_xskip++; }
+static inline void ksft_inc_error_cnt(void) { ksft_cnt.ksft_error++; }
+
+static inline int ksft_get_pass_cnt(void) { return ksft_cnt.ksft_pass; }
+static inline int ksft_get_fail_cnt(void) { return ksft_cnt.ksft_fail; }
+static inline int ksft_get_xfail_cnt(void) { return ksft_cnt.ksft_xfail; }
+static inline int ksft_get_xpass_cnt(void) { return ksft_cnt.ksft_xpass; }
+static inline int ksft_get_xskip_cnt(void) { return ksft_cnt.ksft_xskip; }
+static inline int ksft_get_error_cnt(void) { return ksft_cnt.ksft_error; }
+
+static inline void ksft_print_header(void)
+{
+	/*
+	 * Force line buffering; If stdout is not connected to a terminal, it
+	 * will otherwise default to fully buffered, which can cause output
+	 * duplication if there is content in the buffer when fork()ing. If
+	 * there is a crash, line buffering also means the most recent output
+	 * line will be visible.
+	 */
+	setvbuf(stdout, NULL, _IOLBF, 0);
+
+	if (!(getenv("KSFT_TAP_LEVEL")))
+		printf("TAP version 13\n");
+}
+
+static inline void ksft_set_plan(unsigned int plan)
+{
+	ksft_plan = plan;
+	printf("1..%u\n", ksft_plan);
+}
 
 static inline void ksft_print_cnts(void)
 {
-	printf("Pass: %d Fail: %d Xfail: %d Xpass: %d, Xskip: %d\n",
+	if (ksft_cnt.ksft_xskip > 0)
+		printf(
+			"# %u skipped test(s) detected. Consider enabling relevant config options to improve coverage.\n",
+			ksft_cnt.ksft_xskip
+		);
+	if (ksft_plan != ksft_test_num())
+		printf("# Planned tests != run tests (%u != %u)\n",
+			ksft_plan, ksft_test_num());
+	printf("# Totals: pass:%u fail:%u xfail:%u xpass:%u skip:%u error:%u\n",
 		ksft_cnt.ksft_pass, ksft_cnt.ksft_fail,
 		ksft_cnt.ksft_xfail, ksft_cnt.ksft_xpass,
-		ksft_cnt.ksft_xskip);
+		ksft_cnt.ksft_xskip, ksft_cnt.ksft_error);
+}
+
+static inline __printf(1, 2) void ksft_print_msg(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	va_start(args, msg);
+	printf("# ");
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+static inline void ksft_print_dbg_msg(const char *msg, ...)
+{
+	va_list args;
+
+	if (!ksft_debug_enabled)
+		return;
+
+	va_start(args, msg);
+	ksft_print_msg(msg, args);
+	va_end(args);
+}
+
+static inline void ksft_perror(const char *msg)
+{
+	ksft_print_msg("%s: %s (%d)\n", msg, strerror(errno), errno);
+}
+
+static inline __printf(1, 2) void ksft_test_result_pass(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_pass++;
+
+	va_start(args, msg);
+	printf("ok %u ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+static inline __printf(1, 2) void ksft_test_result_fail(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_fail++;
+
+	va_start(args, msg);
+	printf("not ok %u ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+/**
+ * ksft_test_result() - Report test success based on truth of condition
+ *
+ * @condition: if true, report test success, otherwise failure.
+ */
+#define ksft_test_result(condition, fmt, ...) do {	\
+	if (!!(condition))				\
+		ksft_test_result_pass(fmt, ##__VA_ARGS__);\
+	else						\
+		ksft_test_result_fail(fmt, ##__VA_ARGS__);\
+	} while (0)
+
+static inline __printf(1, 2) void ksft_test_result_xfail(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_xfail++;
+
+	va_start(args, msg);
+	printf("ok %u # XFAIL ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+static inline __printf(1, 2) void ksft_test_result_xpass(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_xpass++;
+
+	va_start(args, msg);
+	printf("ok %u # XPASS ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
 }
 
-static inline int ksft_exit_pass(void)
+static inline __printf(1, 2) void ksft_test_result_skip(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_xskip++;
+
+	va_start(args, msg);
+	printf("ok %u # SKIP ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+/* TODO: how does "error" differ from "fail" or "skip"? */
+static inline __printf(1, 2) void ksft_test_result_error(const char *msg, ...)
+{
+	int saved_errno = errno;
+	va_list args;
+
+	ksft_cnt.ksft_error++;
+
+	va_start(args, msg);
+	printf("not ok %u # error ", ksft_test_num());
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+}
+
+static inline __printf(3, 4)
+void ksft_test_result_code(int exit_code, const char *test_name,
+			   const char *msg, ...)
+{
+	const char *tap_code = "ok";
+	const char *directive = "";
+	int saved_errno = errno;
+	va_list args;
+
+	switch (exit_code) {
+	case KSFT_PASS:
+		ksft_cnt.ksft_pass++;
+		break;
+	case KSFT_XFAIL:
+		directive = " # XFAIL ";
+		ksft_cnt.ksft_xfail++;
+		break;
+	case KSFT_XPASS:
+		directive = " # XPASS ";
+		ksft_cnt.ksft_xpass++;
+		break;
+	case KSFT_SKIP:
+		directive = " # SKIP ";
+		ksft_cnt.ksft_xskip++;
+		break;
+	case KSFT_FAIL:
+	default:
+		tap_code = "not ok";
+		ksft_cnt.ksft_fail++;
+		break;
+	}
+
+	/* Docs seem to call for double space if directive is absent */
+	if (!directive[0] && msg)
+		directive = " #  ";
+
+	printf("%s %u %s%s", tap_code, ksft_test_num(), test_name, directive);
+	errno = saved_errno;
+	if (msg) {
+		va_start(args, msg);
+		vprintf(msg, args);
+		va_end(args);
+	}
+	printf("\n");
+}
+
+/**
+ * ksft_test_result() - Report test success based on truth of condition
+ *
+ * @condition: if true, report test success, otherwise failure.
+ */
+#define ksft_test_result_report(result, fmt, ...) do {		\
+	switch (result) {					\
+	case KSFT_PASS:						\
+		ksft_test_result_pass(fmt, ##__VA_ARGS__);	\
+		break;						\
+	case KSFT_FAIL:						\
+		ksft_test_result_fail(fmt, ##__VA_ARGS__);	\
+		break;						\
+	case KSFT_XFAIL:					\
+		ksft_test_result_xfail(fmt, ##__VA_ARGS__);	\
+		break;						\
+	case KSFT_XPASS:					\
+		ksft_test_result_xpass(fmt, ##__VA_ARGS__);	\
+		break;						\
+	case KSFT_SKIP:						\
+		ksft_test_result_skip(fmt, ##__VA_ARGS__);	\
+		break;						\
+	} } while (0)
+
+static inline __noreturn void ksft_exit_pass(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_PASS);
 }
-static inline int ksft_exit_fail(void)
+
+static inline __noreturn void ksft_exit_fail(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_FAIL);
 }
-static inline int ksft_exit_xfail(void)
+
+/**
+ * ksft_exit() - Exit selftest based on truth of condition
+ *
+ * @condition: if true, exit self test with success, otherwise fail.
+ */
+#define ksft_exit(condition) do {	\
+	if (!!(condition))		\
+		ksft_exit_pass();	\
+	else				\
+		ksft_exit_fail();	\
+	} while (0)
+
+/**
+ * ksft_finished() - Exit selftest with success if all tests passed
+ */
+#define ksft_finished()			\
+	ksft_exit(ksft_plan ==		\
+		  ksft_cnt.ksft_pass +	\
+		  ksft_cnt.ksft_xfail +	\
+		  ksft_cnt.ksft_xskip)
+
+static inline __noreturn __printf(1, 2) void ksft_exit_fail_msg(const char *msg, ...)
 {
+	int saved_errno = errno;
+	va_list args;
+
+	va_start(args, msg);
+	printf("Bail out! ");
+	errno = saved_errno;
+	vprintf(msg, args);
+	va_end(args);
+
+	ksft_print_cnts();
+	exit(KSFT_FAIL);
+}
+
+static inline __noreturn void ksft_exit_fail_perror(const char *msg)
+{
+	ksft_exit_fail_msg("%s: %s (%d)\n", msg, strerror(errno), errno);
+}
+
+static inline __noreturn void ksft_exit_xfail(void)
+{
+	ksft_print_cnts();
 	exit(KSFT_XFAIL);
 }
-static inline int ksft_exit_xpass(void)
+
+static inline __noreturn void ksft_exit_xpass(void)
 {
+	ksft_print_cnts();
 	exit(KSFT_XPASS);
 }
-static inline int ksft_exit_skip(void)
+
+static inline __noreturn __printf(1, 2) void ksft_exit_skip(const char *msg, ...)
 {
+	int saved_errno = errno;
+	va_list args;
+
+	va_start(args, msg);
+
+	/*
+	 * FIXME: several tests misuse ksft_exit_skip so produce
+	 * something sensible if some tests have already been run
+	 * or a plan has been printed.  Those tests should use
+	 * ksft_test_result_skip or ksft_exit_fail_msg instead.
+	 */
+	if (ksft_plan || ksft_test_num()) {
+		ksft_cnt.ksft_xskip++;
+		printf("ok %u # SKIP ", 1 + ksft_test_num());
+	} else {
+		printf("1..0 # SKIP ");
+	}
+	if (msg) {
+		errno = saved_errno;
+		vprintf(msg, args);
+		va_end(args);
+	}
+	if (ksft_test_num())
+		ksft_print_cnts();
 	exit(KSFT_SKIP);
 }
 
+static inline int ksft_min_kernel_version(unsigned int min_major,
+					  unsigned int min_minor)
+{
+	unsigned int major, minor;
+	struct utsname info;
+
+	if (uname(&info) || sscanf(info.release, "%u.%u.", &major, &minor) != 2)
+		ksft_exit_fail_msg("Can't parse kernel version\n");
+
+	return major > min_major || (major == min_major && minor >= min_minor);
+}
+
 #endif /* __KSELFTEST_H */
diff --git a/tools/testing/selftests/kselftest/ksft.py b/tools/testing/selftests/kselftest/ksft.py
new file mode 100644
index 000000000000..0e030837fc17
--- /dev/null
+++ b/tools/testing/selftests/kselftest/ksft.py
@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2023 Collabora Ltd
+#
+# Kselftest helpers for outputting in KTAP format. Based on kselftest.h.
+#
+
+import sys
+
+ksft_cnt = {"pass": 0, "fail": 0, "skip": 0}
+ksft_num_tests = 0
+ksft_test_number = 1
+
+KSFT_PASS = 0
+KSFT_FAIL = 1
+KSFT_SKIP = 4
+
+
+def print_header():
+    print("TAP version 13")
+
+
+def set_plan(num_tests):
+    global ksft_num_tests
+    ksft_num_tests = num_tests
+    print("1..{}".format(num_tests))
+
+
+def print_cnts():
+    if ksft_cnt['skip'] > 0:
+        print(f"# {ksft_cnt['skip']} skipped test(s) detected. Consider enabling relevant config options to improve coverage.")
+
+    print(
+        f"# Totals: pass:{ksft_cnt['pass']} fail:{ksft_cnt['fail']} xfail:0 xpass:0 skip:{ksft_cnt['skip']} error:0"
+    )
+
+
+def print_msg(msg):
+    print(f"# {msg}")
+
+
+def _test_print(result, description, directive=None):
+    if directive:
+        directive_str = f"# {directive}"
+    else:
+        directive_str = ""
+
+    global ksft_test_number
+    print(f"{result} {ksft_test_number} {description} {directive_str}")
+    ksft_test_number += 1
+
+
+def test_result_pass(description):
+    _test_print("ok", description)
+    ksft_cnt["pass"] += 1
+
+
+def test_result_fail(description):
+    _test_print("not ok", description)
+    ksft_cnt["fail"] += 1
+
+
+def test_result_skip(description):
+    _test_print("ok", description, "SKIP")
+    ksft_cnt["skip"] += 1
+
+
+def test_result(condition, description=""):
+    if condition:
+        test_result_pass(description)
+    else:
+        test_result_fail(description)
+
+
+def finished():
+    if ksft_cnt["pass"] + ksft_cnt["skip"] == ksft_num_tests:
+        exit_code = KSFT_PASS
+    else:
+        exit_code = KSFT_FAIL
+
+    print_cnts()
+
+    sys.exit(exit_code)
+
+
+def exit_fail():
+    print_cnts()
+    sys.exit(KSFT_FAIL)
+
+
+def exit_pass():
+    print_cnts()
+    sys.exit(KSFT_PASS)
diff --git a/tools/testing/selftests/kselftest/ktap_helpers.sh b/tools/testing/selftests/kselftest/ktap_helpers.sh
new file mode 100644
index 000000000000..32dbfe9da2c4
--- /dev/null
+++ b/tools/testing/selftests/kselftest/ktap_helpers.sh
@@ -0,0 +1,126 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2023 Collabora Ltd
+#
+# Helpers for outputting in KTAP format
+#
+KTAP_TESTNO=1
+KTAP_CNT_PASS=0
+KTAP_CNT_FAIL=0
+KTAP_CNT_XFAIL=0
+KTAP_CNT_SKIP=0
+
+KSFT_PASS=0
+KSFT_FAIL=1
+KSFT_XFAIL=2
+KSFT_XPASS=3
+KSFT_SKIP=4
+
+KSFT_NUM_TESTS=0
+
+ktap_print_header() {
+	echo "TAP version 13"
+}
+
+ktap_print_msg()
+{
+	echo "#" $@
+}
+
+ktap_set_plan() {
+	KSFT_NUM_TESTS="$1"
+
+	echo "1..$KSFT_NUM_TESTS"
+}
+
+ktap_skip_all() {
+	echo -n "1..0 # SKIP "
+	echo $@
+}
+
+__ktap_test() {
+	result="$1"
+	description="$2"
+	directive="${3:-}" # optional
+
+	local directive_str=
+	[ ! -z "$directive" ] && directive_str="# $directive"
+
+	echo $result $KTAP_TESTNO $description $directive_str
+
+	KTAP_TESTNO=$((KTAP_TESTNO+1))
+}
+
+ktap_test_pass() {
+	description="$1"
+
+	result="ok"
+	__ktap_test "$result" "$description"
+
+	KTAP_CNT_PASS=$((KTAP_CNT_PASS+1))
+}
+
+ktap_test_skip() {
+	description="$1"
+
+	result="ok"
+	directive="SKIP"
+	__ktap_test "$result" "$description" "$directive"
+
+	KTAP_CNT_SKIP=$((KTAP_CNT_SKIP+1))
+}
+
+ktap_test_xfail() {
+	description="$1"
+
+	result="ok"
+	directive="XFAIL"
+	__ktap_test "$result" "$description" "$directive"
+
+	KTAP_CNT_XFAIL=$((KTAP_CNT_XFAIL+1))
+}
+
+ktap_test_fail() {
+	description="$1"
+
+	result="not ok"
+	__ktap_test "$result" "$description"
+
+	KTAP_CNT_FAIL=$((KTAP_CNT_FAIL+1))
+}
+
+ktap_test_result() {
+	description="$1"
+	shift
+
+	if $@; then
+		ktap_test_pass "$description"
+	else
+		ktap_test_fail "$description"
+	fi
+}
+
+ktap_exit_fail_msg() {
+	echo "Bail out! " $@
+	ktap_print_totals
+
+	exit "$KSFT_FAIL"
+}
+
+ktap_finished() {
+	ktap_print_totals
+
+	if [ $((KTAP_CNT_PASS + KTAP_CNT_SKIP + KTAP_CNT_XFAIL)) -eq "$KSFT_NUM_TESTS" ]; then
+		exit "$KSFT_PASS"
+	else
+		exit "$KSFT_FAIL"
+	fi
+}
+
+ktap_print_totals() {
+	if [ "$KTAP_CNT_SKIP" -gt 0 ]; then
+		echo "# $KTAP_CNT_SKIP skipped test(s) detected. " \
+			"Consider enabling relevant config options to improve coverage."
+	fi
+	echo "# Totals: pass:$KTAP_CNT_PASS fail:$KTAP_CNT_FAIL xfail:$KTAP_CNT_XFAIL xpass:0 skip:$KTAP_CNT_SKIP error:0"
+}
diff --git a/tools/testing/selftests/kselftest/module.sh b/tools/testing/selftests/kselftest/module.sh
new file mode 100755
index 000000000000..51fb65159932
--- /dev/null
+++ b/tools/testing/selftests/kselftest/module.sh
@@ -0,0 +1,84 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+
+#
+# Runs an individual test module.
+#
+# kselftest expects a separate executable for each test, this can be
+# created by adding a script like this:
+#
+#   #!/bin/sh
+#   SPDX-License-Identifier: GPL-2.0+
+#   $(dirname $0)/../kselftest/module.sh "description" module_name
+#
+# Example: tools/testing/selftests/lib/bitmap.sh
+
+desc=""				# Output prefix.
+module=""			# Filename (without the .ko).
+args=""				# modprobe arguments.
+
+modprobe="/sbin/modprobe"
+
+main() {
+    parse_args "$@"
+    assert_root
+    assert_have_module
+    run_module
+}
+
+parse_args() {
+    script=${0##*/}
+
+    if [ $# -lt 2 ]; then
+	echo "Usage: $script <description> <module_name> [FAIL]"
+	exit 1
+    fi
+
+    desc="$1"
+    shift || true
+    module="$1"
+    shift || true
+    args="$@"
+}
+
+assert_root() {
+    if [ ! -w /dev ]; then
+	skip "please run as root"
+    fi
+}
+
+assert_have_module() {
+    if ! $modprobe -q -n $module; then
+	skip "module $module is not found"
+    fi
+}
+
+run_module() {
+    if $modprobe -q $module $args; then
+	$modprobe -q -r $module
+	say "ok"
+    else
+	fail ""
+    fi
+}
+
+say() {
+    echo "$desc: $1"
+}
+
+
+fail() {
+    say "$1 [FAIL]" >&2
+    exit 1
+}
+
+skip() {
+    say "$1 [SKIP]" >&2
+    # Kselftest framework requirement - SKIP code is 4.
+    exit 4
+}
+
+#
+# Main script
+#
+main "$@"
diff --git a/tools/testing/selftests/kselftest/prefix.pl b/tools/testing/selftests/kselftest/prefix.pl
new file mode 100755
index 000000000000..12a7f4ca2684
--- /dev/null
+++ b/tools/testing/selftests/kselftest/prefix.pl
@@ -0,0 +1,24 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
+# Prefix all lines with "# ", unbuffered. Command being piped in may need
+# to have unbuffering forced with "stdbuf -i0 -o0 -e0 $cmd".
+use strict;
+use IO::Handle;
+
+binmode STDIN;
+binmode STDOUT;
+
+STDOUT->autoflush(1);
+
+my $needed = 1;
+while (1) {
+	my $char;
+	my $bytes = sysread(STDIN, $char, 1);
+	exit 0 if ($bytes == 0);
+	if ($needed) {
+		print "# ";
+		$needed = 0;
+	}
+	print $char;
+	$needed = 1 if ($char eq "\n");
+}
diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh
new file mode 100644
index 000000000000..3a62039fa621
--- /dev/null
+++ b/tools/testing/selftests/kselftest/runner.sh
@@ -0,0 +1,203 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Runs a set of tests in a given subdirectory.
+export skip_rc=4
+export timeout_rc=124
+export logfile=/dev/stdout
+export per_test_logging=
+export RUN_IN_NETNS=
+
+# Defaults for "settings" file fields:
+# "timeout" how many seconds to let each test run before running
+# over our soft timeout limit.
+export kselftest_default_timeout=45
+
+# There isn't a shell-agnostic way to find the path of a sourced file,
+# so we must rely on BASE_DIR being set to find other tools.
+if [ -z "$BASE_DIR" ]; then
+	echo "Error: BASE_DIR must be set before sourcing." >&2
+	exit 1
+fi
+
+TR_CMD=$(command -v tr)
+
+# If Perl is unavailable, we must fall back to line-at-a-time prefixing
+# with sed instead of unbuffered output.
+tap_prefix()
+{
+	if [ ! -x /usr/bin/perl ]; then
+		sed -e 's/^/# /'
+	else
+		"$BASE_DIR"/kselftest/prefix.pl
+	fi
+}
+
+tap_timeout()
+{
+	# Make sure tests will time out if utility is available.
+	if [ -x /usr/bin/timeout ] ; then
+		/usr/bin/timeout --foreground "$kselftest_timeout" \
+			/usr/bin/timeout "$kselftest_timeout" $1
+	else
+		$1
+	fi
+}
+
+report_failure()
+{
+	echo "not ok $*"
+	echo "$*" >> "$kselftest_failures_file"
+}
+
+run_one()
+{
+	DIR="$1"
+	TEST="$2"
+	local test_num="$3"
+
+	BASENAME_TEST=$(basename $TEST)
+
+	# Reset any "settings"-file variables.
+	export kselftest_timeout="$kselftest_default_timeout"
+
+	# Safe default if tr not available
+	kselftest_cmd_args_ref="KSELFTEST_ARGS"
+
+	# Optional arguments for this command, possibly defined as an
+	# environment variable built using the test executable in all
+	# uppercase and sanitized substituting non acceptable shell
+	# variable name characters with "_" as in:
+	#
+	# 	KSELFTEST_<UPPERCASE_SANITIZED_TESTNAME>_ARGS="<options>"
+	#
+	# e.g.
+	#
+	# 	rtctest --> KSELFTEST_RTCTEST_ARGS="/dev/rtc1"
+	#
+	# 	cpu-on-off-test.sh --> KSELFTEST_CPU_ON_OFF_TEST_SH_ARGS="-a -p 10"
+	#
+	if [ -n "$TR_CMD" ]; then
+		BASENAME_SANITIZED=$(echo "$BASENAME_TEST" | \
+					$TR_CMD -d "[:blank:][:cntrl:]" | \
+					$TR_CMD -c "[:alnum:]_" "_" | \
+					$TR_CMD [:lower:] [:upper:])
+		kselftest_cmd_args_ref="KSELFTEST_${BASENAME_SANITIZED}_ARGS"
+	fi
+
+	# Load per-test-directory kselftest "settings" file.
+	settings="$BASE_DIR/$DIR/settings"
+	if [ -r "$settings" ] ; then
+		while read line ; do
+			# Skip comments.
+			if echo "$line" | grep -q '^#'; then
+				continue
+			fi
+			field=$(echo "$line" | cut -d= -f1)
+			value=$(echo "$line" | cut -d= -f2-)
+			eval "kselftest_$field"="$value"
+		done < "$settings"
+	fi
+
+	# Command line timeout overrides the settings file
+	if [ -n "$kselftest_override_timeout" ]; then
+		kselftest_timeout="$kselftest_override_timeout"
+		echo "# overriding timeout to $kselftest_timeout" >> "$logfile"
+	else
+		echo "# timeout set to $kselftest_timeout" >> "$logfile"
+	fi
+
+	TEST_HDR_MSG="selftests: $DIR: $BASENAME_TEST"
+	echo "# $TEST_HDR_MSG"
+	if [ ! -e "$TEST" ]; then
+		echo "# Warning: file $TEST is missing!"
+		report_failure "$test_num $TEST_HDR_MSG"
+	else
+		if [ -x /usr/bin/stdbuf ]; then
+			stdbuf="/usr/bin/stdbuf --output=L "
+		fi
+		eval kselftest_cmd_args="\$${kselftest_cmd_args_ref:-}"
+		if [ -x "$TEST" ]; then
+			cmd="$stdbuf ./$BASENAME_TEST $kselftest_cmd_args"
+		elif [ -x "./ksft_runner.sh" ]; then
+			cmd="$stdbuf ./ksft_runner.sh ./$BASENAME_TEST"
+		else
+			echo "# Warning: file $TEST is not executable"
+
+			if [ $(head -n 1 "$TEST" | cut -c -2) = "#!" ]
+			then
+				interpreter=$(head -n 1 "$TEST" | cut -c 3-)
+				cmd="$stdbuf $interpreter ./$BASENAME_TEST"
+			else
+				report_failure "$test_num $TEST_HDR_MSG"
+				return
+			fi
+		fi
+		cd `dirname $TEST` > /dev/null
+		((((( tap_timeout "$cmd" 2>&1; echo $? >&3) |
+			tap_prefix >&4) 3>&1) |
+			(read xs; exit $xs)) 4>>"$logfile" &&
+		echo "ok $test_num $TEST_HDR_MSG") ||
+		(rc=$?;	\
+		if [ $rc -eq $skip_rc ]; then	\
+			echo "ok $test_num $TEST_HDR_MSG # SKIP"
+		elif [ $rc -eq $timeout_rc ]; then \
+			echo "#"
+			report_failure "$test_num $TEST_HDR_MSG # TIMEOUT $kselftest_timeout seconds"
+		else
+			report_failure "$test_num $TEST_HDR_MSG # exit=$rc"
+		fi)
+		cd - >/dev/null
+	fi
+}
+
+in_netns()
+{
+	local name=$1
+	ip netns exec $name bash <<-EOF
+		BASE_DIR=$BASE_DIR
+		source $BASE_DIR/kselftest/runner.sh
+		logfile=$logfile
+		run_one $DIR $TEST $test_num
+	EOF
+}
+
+run_in_netns()
+{
+	local netns=$(mktemp -u ${BASENAME_TEST}-XXXXXX)
+	local tmplog="/tmp/$(mktemp -u ${BASENAME_TEST}-XXXXXX)"
+	ip netns add $netns
+	if [ $? -ne 0 ]; then
+		echo "# Warning: Create namespace failed for $BASENAME_TEST"
+		echo "not ok $test_num selftests: $DIR: $BASENAME_TEST # Create NS failed"
+	fi
+	ip -n $netns link set lo up
+	in_netns $netns &> $tmplog
+	ip netns del $netns &> /dev/null
+	cat $tmplog
+	rm -f $tmplog
+}
+
+run_many()
+{
+	echo "TAP version 13"
+	DIR="${PWD#${BASE_DIR}/}"
+	test_num=0
+	total=$(echo "$@" | wc -w)
+	echo "1..$total"
+	for TEST in "$@"; do
+		BASENAME_TEST=$(basename $TEST)
+		test_num=$(( test_num + 1 ))
+		if [ -n "$per_test_logging" ]; then
+			logfile="/tmp/$BASENAME_TEST"
+			cat /dev/null > "$logfile"
+		fi
+		if [ -n "$RUN_IN_NETNS" ]; then
+			run_in_netns &
+		else
+			run_one "$DIR" "$TEST" "$test_num"
+		fi
+	done
+
+	wait
+}
diff --git a/tools/testing/selftests/kselftest_deps.sh b/tools/testing/selftests/kselftest_deps.sh
new file mode 100755
index 000000000000..487e49fdf2a6
--- /dev/null
+++ b/tools/testing/selftests/kselftest_deps.sh
@@ -0,0 +1,324 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# kselftest_deps.sh
+#
+# Checks for kselftest build dependencies on the build system.
+# Copyright (c) 2020 Shuah Khan <skhan@linuxfoundation.org>
+#
+#
+
+usage()
+{
+
+echo -e "Usage: $0 -[p] <compiler> [test_name]\n"
+echo -e "\tkselftest_deps.sh [-p] gcc"
+echo -e "\tkselftest_deps.sh [-p] gcc mm"
+echo -e "\tkselftest_deps.sh [-p] aarch64-linux-gnu-gcc"
+echo -e "\tkselftest_deps.sh [-p] aarch64-linux-gnu-gcc mm\n"
+echo "- Should be run in selftests directory in the kernel repo."
+echo "- Checks if Kselftests can be built/cross-built on a system."
+echo "- Parses all test/sub-test Makefile to find library dependencies."
+echo "- Runs compile test on a trivial C file with LDLIBS specified"
+echo "  in the test Makefiles to identify missing library dependencies."
+echo "- Prints suggested target list for a system filtering out tests"
+echo "  failed the build dependency check from the TARGETS in Selftests"
+echo "  main Makefile when optional -p is specified."
+echo "- Prints pass/fail dependency check for each tests/sub-test."
+echo "- Prints pass/fail targets and libraries."
+echo "- Default: runs dependency checks on all tests."
+echo "- Optional: test name can be specified to check dependencies for it."
+exit 1
+
+}
+
+# Start main()
+main()
+{
+
+base_dir=`pwd`
+# Make sure we're in the selftests top-level directory.
+if [ $(basename "$base_dir") !=  "selftests" ]; then
+	echo -e "\tPlease run $0 in"
+	echo -e "\ttools/testing/selftests directory ..."
+	exit 1
+fi
+
+print_targets=0
+
+while getopts "p" arg; do
+	case $arg in
+		p)
+		print_targets=1
+	shift;;
+	esac
+done
+
+if [ $# -eq 0 ]
+then
+	usage
+fi
+
+# Compiler
+CC=$1
+
+tmp_file=$(mktemp).c
+trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
+#echo $tmp_file
+
+pass=$(mktemp).out
+trap "rm -f $pass" EXIT
+#echo $pass
+
+fail=$(mktemp).out
+trap "rm -f $fail" EXIT
+#echo $fail
+
+# Generate tmp source fire for compile test
+cat << "EOF" > $tmp_file
+int main()
+{
+}
+EOF
+
+# Save results
+total_cnt=0
+fail_trgts=()
+fail_libs=()
+fail_cnt=0
+pass_trgts=()
+pass_libs=()
+pass_cnt=0
+
+# Get all TARGETS from selftests Makefile
+targets=$(grep -E "^TARGETS +|^TARGETS =" Makefile | cut -d "=" -f2)
+
+# Initially, in LDLIBS related lines, the dep checker needs
+# to ignore lines containing the following strings:
+filter="\$(VAR_LDLIBS)\|pkg-config\|PKG_CONFIG\|IOURING_EXTRA_LIBS"
+
+# Single test case
+if [ $# -eq 2 ]
+then
+	test=$2/Makefile
+
+	l1_test $test
+	l2_test $test
+	l3_test $test
+	l4_test $test
+	l5_test $test
+
+	print_results $1 $2
+	exit $?
+fi
+
+# Level 1: LDLIBS set static.
+#
+# Find all LDLIBS set statically for all executables built by a Makefile
+# and filter out VAR_LDLIBS to discard the following:
+# 	gpio/Makefile:LDLIBS += $(VAR_LDLIBS)
+# Append space at the end of the list to append more tests.
+
+l1_tests=$(grep -r --include=Makefile "^LDLIBS" | \
+		grep -v "$filter" | awk -F: '{print $1}' | uniq)
+
+# Level 2: LDLIBS set dynamically.
+#
+# Level 2
+# Some tests have multiple valid LDLIBS lines for individual sub-tests
+# that need dependency checks. Find them and append them to the tests
+# e.g: mm/Makefile:$(OUTPUT)/userfaultfd: LDLIBS += -lpthread
+# Filter out VAR_LDLIBS to discard the following:
+# 	memfd/Makefile:$(OUTPUT)/fuse_mnt: LDLIBS += $(VAR_LDLIBS)
+# Append space at the end of the list to append more tests.
+
+l2_tests=$(grep -r --include=Makefile ": LDLIBS" | \
+		grep -v "$filter" | awk -F: '{print $1}' | uniq)
+
+# Level 3
+# memfd and others use pkg-config to find mount and fuse libs
+# respectively and save it in VAR_LDLIBS. If pkg-config doesn't find
+# any, VAR_LDLIBS set to default.
+# Use the default value and filter out pkg-config for dependency check.
+# e.g:
+# memfd/Makefile
+#	VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
+
+l3_tests=$(grep -r --include=Makefile "^VAR_LDLIBS" | \
+		grep -v "pkg-config\|PKG_CONFIG" | awk -F: '{print $1}' | uniq)
+
+# Level 4
+# some tests may fall back to default using `|| echo -l<libname>`
+# if pkg-config doesn't find the libs, instead of using VAR_LDLIBS
+# as per level 3 checks.
+# e.g:
+# netfilter/Makefile
+#	LDLIBS += $(shell $(HOSTPKG_CONFIG) --libs libmnl 2>/dev/null || echo -lmnl)
+l4_tests=$(grep -r --include=Makefile "^LDLIBS" | \
+		grep "pkg-config\|PKG_CONFIG" | awk -F: '{print $1}' | uniq)
+
+# Level 5
+# some tests may use IOURING_EXTRA_LIBS to add extra libs to LDLIBS,
+# which in turn may be defined in a sub-Makefile
+# e.g.:
+# mm/Makefile
+#	$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)
+l5_tests=$(grep -r --include=Makefile "LDLIBS +=.*\$(IOURING_EXTRA_LIBS)" | \
+	awk -F: '{print $1}' | uniq)
+
+#echo l1_tests $l1_tests
+#echo l2_tests $l2_tests
+#echo l3_tests $l3_tests
+#echo l4_tests $l4_tests
+#echo l5_tests $l5_tests
+
+all_tests
+print_results $1 $2
+
+exit $?
+}
+# end main()
+
+all_tests()
+{
+	for test in $l1_tests; do
+		l1_test $test
+	done
+
+	for test in $l2_tests; do
+		l2_test $test
+	done
+
+	for test in $l3_tests; do
+		l3_test $test
+	done
+
+	for test in $l4_tests; do
+		l4_test $test
+	done
+
+	for test in $l5_tests; do
+		l5_test $test
+	done
+}
+
+# Use same parsing used for l1_tests and pick libraries this time.
+l1_test()
+{
+	test_libs=$(grep --include=Makefile "^LDLIBS" $test | \
+			grep -v "$filter" | \
+			sed -e 's/\:/ /' | \
+			sed -e 's/+/ /' | cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+# Use same parsing used for l2_tests and pick libraries this time.
+l2_test()
+{
+	test_libs=$(grep --include=Makefile ": LDLIBS" $test | \
+			grep -v "$filter" | \
+			sed -e 's/\:/ /' | sed -e 's/+/ /' | \
+			cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+l3_test()
+{
+	test_libs=$(grep --include=Makefile "^VAR_LDLIBS" $test | \
+			grep -v "pkg-config" | sed -e 's/\:/ /' |
+			sed -e 's/+/ /' | cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+l4_test()
+{
+	test_libs=$(grep --include=Makefile "^VAR_LDLIBS\|^LDLIBS" $test | \
+			grep "\(pkg-config\|PKG_CONFIG\).*|| echo " | \
+			sed -e 's/.*|| echo //' | sed -e 's/)$//')
+
+	check_libs $test $test_libs
+}
+
+l5_test()
+{
+	tests=$(find $(dirname "$test") -type f -name "*.mk")
+	[[ -z "${tests// }" ]] && return
+	test_libs=$(grep "^IOURING_EXTRA_LIBS +\?=" $tests | \
+			cut -d "=" -f 2)
+
+	check_libs $test $test_libs
+}
+
+check_libs()
+{
+
+if [[ ! -z "${test_libs// }" ]]
+then
+
+	#echo $test_libs
+
+	for lib in $test_libs; do
+
+	let total_cnt+=1
+	$CC -o $tmp_file.bin $lib $tmp_file > /dev/null 2>&1
+	if [ $? -ne 0 ]; then
+		echo "FAIL: $test dependency check: $lib" >> $fail
+		let fail_cnt+=1
+		fail_libs+="$lib "
+		fail_target=$(echo "$test" | cut -d "/" -f1)
+		fail_trgts+="$fail_target "
+		targets=$(echo "$targets" | grep -v "$fail_target")
+	else
+		echo "PASS: $test dependency check passed $lib" >> $pass
+		let pass_cnt+=1
+		pass_libs+="$lib "
+		pass_trgts+="$(echo "$test" | cut -d "/" -f1) "
+	fi
+
+	done
+fi
+}
+
+print_results()
+{
+	echo -e "========================================================";
+	echo -e "Kselftest Dependency Check for [$0 $1 $2] results..."
+
+	if [ $print_targets -ne 0 ]
+	then
+	echo -e "Suggested Selftest Targets for your configuration:"
+	echo -e "$targets";
+	fi
+
+	echo -e "========================================================";
+	echo -e "Checked tests defining LDLIBS dependencies"
+	echo -e "--------------------------------------------------------";
+	echo -e "Total tests with Dependencies:"
+	echo -e "$total_cnt Pass: $pass_cnt Fail: $fail_cnt";
+
+	if [ $pass_cnt -ne 0 ]; then
+	echo -e "--------------------------------------------------------";
+	cat $pass
+	echo -e "--------------------------------------------------------";
+	echo -e "Targets passed build dependency check on system:"
+	echo -e "$(echo "$pass_trgts" | xargs -n1 | sort -u | xargs)"
+	fi
+
+	if [ $fail_cnt -ne 0 ]; then
+	echo -e "--------------------------------------------------------";
+	cat $fail
+	echo -e "--------------------------------------------------------";
+	echo -e "Targets failed build dependency check on system:"
+	echo -e "$(echo "$fail_trgts" | xargs -n1 | sort -u | xargs)"
+	echo -e "--------------------------------------------------------";
+	echo -e "Missing libraries system"
+	echo -e "$(echo "$fail_libs" | xargs -n1 | sort -u | xargs)"
+	fi
+
+	echo -e "--------------------------------------------------------";
+	echo -e "========================================================";
+}
+
+main "$@"
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
new file mode 100644
index 000000000000..baae6b7ded41
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -0,0 +1,1313 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+ *
+ * kselftest_harness.h: simple C unit test helper.
+ *
+ * See documentation in Documentation/dev-tools/kselftest.rst
+ *
+ * API inspired by code.google.com/p/googletest
+ */
+
+/**
+ * DOC: example
+ *
+ * .. code-block:: c
+ *
+ *    #include "kselftest_harness.h"
+ *
+ *    TEST(standalone_test) {
+ *      do_some_stuff;
+ *      EXPECT_GT(10, stuff) {
+ *         stuff_state_t state;
+ *         enumerate_stuff_state(&state);
+ *         TH_LOG("expectation failed with state: %s", state.msg);
+ *      }
+ *      more_stuff;
+ *      ASSERT_NE(some_stuff, NULL) TH_LOG("how did it happen?!");
+ *      last_stuff;
+ *      EXPECT_EQ(0, last_stuff);
+ *    }
+ *
+ *    FIXTURE(my_fixture) {
+ *      mytype_t *data;
+ *      int awesomeness_level;
+ *    };
+ *    FIXTURE_SETUP(my_fixture) {
+ *      self->data = mytype_new();
+ *      ASSERT_NE(NULL, self->data);
+ *    }
+ *    FIXTURE_TEARDOWN(my_fixture) {
+ *      mytype_free(self->data);
+ *    }
+ *    TEST_F(my_fixture, data_is_good) {
+ *      EXPECT_EQ(1, is_my_data_good(self->data));
+ *    }
+ *
+ *    TEST_HARNESS_MAIN
+ */
+
+#ifndef __KSELFTEST_HARNESS_H
+#define __KSELFTEST_HARNESS_H
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <asm/types.h>
+#include <ctype.h>
+#include <errno.h>
+#include <linux/unistd.h>
+#include <poll.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#define TEST_TIMEOUT_DEFAULT 30
+
+/* Utilities exposed to the test definitions */
+#ifndef TH_LOG_STREAM
+#  define TH_LOG_STREAM stderr
+#endif
+
+#ifndef TH_LOG_ENABLED
+#  define TH_LOG_ENABLED 1
+#endif
+
+/**
+ * TH_LOG()
+ *
+ * @fmt: format string
+ * @...: optional arguments
+ *
+ * .. code-block:: c
+ *
+ *     TH_LOG(format, ...)
+ *
+ * Optional debug logging function available for use in tests.
+ * Logging may be enabled or disabled by defining TH_LOG_ENABLED.
+ * E.g., #define TH_LOG_ENABLED 1
+ *
+ * If no definition is provided, logging is enabled by default.
+ */
+#define TH_LOG(fmt, ...) do { \
+	if (TH_LOG_ENABLED) \
+		__TH_LOG(fmt, ##__VA_ARGS__); \
+} while (0)
+
+/* Unconditional logger for internal use. */
+#define __TH_LOG(fmt, ...) \
+		fprintf(TH_LOG_STREAM, "# %s:%d:%s:" fmt "\n", \
+			__FILE__, __LINE__, _metadata->name, ##__VA_ARGS__)
+
+/**
+ * SKIP()
+ *
+ * @statement: statement to run after reporting SKIP
+ * @fmt: format string
+ * @...: optional arguments
+ *
+ * .. code-block:: c
+ *
+ *     SKIP(statement, fmt, ...);
+ *
+ * This forces a "pass" after reporting why something is being skipped
+ * and runs "statement", which is usually "return" or "goto skip".
+ */
+#define SKIP(statement, fmt, ...) do { \
+	snprintf(_metadata->results->reason, \
+		 sizeof(_metadata->results->reason), fmt, ##__VA_ARGS__); \
+	if (TH_LOG_ENABLED) { \
+		fprintf(TH_LOG_STREAM, "#      SKIP      %s\n", \
+			_metadata->results->reason); \
+	} \
+	_metadata->exit_code = KSFT_SKIP; \
+	_metadata->trigger = 0; \
+	statement; \
+} while (0)
+
+/**
+ * TEST() - Defines the test function and creates the registration
+ * stub
+ *
+ * @test_name: test name
+ *
+ * .. code-block:: c
+ *
+ *     TEST(name) { implementation }
+ *
+ * Defines a test by name.
+ * Names must be unique and tests must not be run in parallel.  The
+ * implementation containing block is a function and scoping should be treated
+ * as such.  Returning early may be performed with a bare "return;" statement.
+ *
+ * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
+ */
+#define TEST(test_name) __TEST_IMPL(test_name, -1)
+
+/**
+ * TEST_SIGNAL()
+ *
+ * @test_name: test name
+ * @signal: signal number
+ *
+ * .. code-block:: c
+ *
+ *     TEST_SIGNAL(name, signal) { implementation }
+ *
+ * Defines a test by name and the expected term signal.
+ * Names must be unique and tests must not be run in parallel.  The
+ * implementation containing block is a function and scoping should be treated
+ * as such.  Returning early may be performed with a bare "return;" statement.
+ *
+ * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
+ */
+#define TEST_SIGNAL(test_name, signal) __TEST_IMPL(test_name, signal)
+
+#define __TEST_IMPL(test_name, _signal) \
+	static void test_name(struct __test_metadata *_metadata); \
+	static void wrapper_##test_name( \
+		struct __test_metadata *_metadata, \
+		struct __fixture_variant_metadata __attribute__((unused)) *variant) \
+	{ \
+		test_name(_metadata); \
+	} \
+	static struct __test_metadata _##test_name##_object = \
+		{ .name = #test_name, \
+		  .fn = &wrapper_##test_name, \
+		  .fixture = &_fixture_global, \
+		  .termsig = _signal, \
+		  .timeout = TEST_TIMEOUT_DEFAULT, }; \
+	static void __attribute__((constructor)) _register_##test_name(void) \
+	{ \
+		__register_test(&_##test_name##_object); \
+	} \
+	static void test_name( \
+		struct __test_metadata __attribute__((unused)) *_metadata)
+
+/**
+ * FIXTURE_DATA() - Wraps the struct name so we have one less
+ * argument to pass around
+ *
+ * @datatype_name: datatype name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_DATA(datatype_name)
+ *
+ * Almost always, you want just FIXTURE() instead (see below).
+ * This call may be used when the type of the fixture data
+ * is needed.  In general, this should not be needed unless
+ * the *self* is being passed to a helper directly.
+ */
+#define FIXTURE_DATA(datatype_name) struct _test_data_##datatype_name
+
+/**
+ * FIXTURE() - Called once per fixture to setup the data and
+ * register
+ *
+ * @fixture_name: fixture name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE(fixture_name) {
+ *       type property1;
+ *       ...
+ *     };
+ *
+ * Defines the data provided to TEST_F()-defined tests as *self*.  It should be
+ * populated and cleaned up using FIXTURE_SETUP() and FIXTURE_TEARDOWN().
+ */
+#define FIXTURE(fixture_name) \
+	FIXTURE_VARIANT(fixture_name); \
+	static struct __fixture_metadata _##fixture_name##_fixture_object = \
+		{ .name =  #fixture_name, }; \
+	static void __attribute__((constructor)) \
+	_register_##fixture_name##_data(void) \
+	{ \
+		__register_fixture(&_##fixture_name##_fixture_object); \
+	} \
+	FIXTURE_DATA(fixture_name)
+
+/**
+ * FIXTURE_SETUP() - Prepares the setup function for the fixture.
+ * *_metadata* is included so that EXPECT_*, ASSERT_* etc. work correctly.
+ *
+ * @fixture_name: fixture name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_SETUP(fixture_name) { implementation }
+ *
+ * Populates the required "setup" function for a fixture.  An instance of the
+ * datatype defined with FIXTURE_DATA() will be exposed as *self* for the
+ * implementation.
+ *
+ * ASSERT_* are valid for use in this context and will prempt the execution
+ * of any dependent fixture tests.
+ *
+ * A bare "return;" statement may be used to return early.
+ */
+#define FIXTURE_SETUP(fixture_name) \
+	static void fixture_name##_setup( \
+		struct __test_metadata __attribute__((unused)) *_metadata, \
+		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
+		const FIXTURE_VARIANT(fixture_name) \
+			__attribute__((unused)) *variant)
+
+/**
+ * FIXTURE_TEARDOWN()
+ * *_metadata* is included so that EXPECT_*, ASSERT_* etc. work correctly.
+ *
+ * @fixture_name: fixture name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_TEARDOWN(fixture_name) { implementation }
+ *
+ * Populates the required "teardown" function for a fixture.  An instance of the
+ * datatype defined with FIXTURE_DATA() will be exposed as *self* for the
+ * implementation to clean up.
+ *
+ * A bare "return;" statement may be used to return early.
+ */
+#define FIXTURE_TEARDOWN(fixture_name) \
+	static const bool fixture_name##_teardown_parent; \
+	__FIXTURE_TEARDOWN(fixture_name)
+
+/**
+ * FIXTURE_TEARDOWN_PARENT()
+ * *_metadata* is included so that EXPECT_*, ASSERT_* etc. work correctly.
+ *
+ * @fixture_name: fixture name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_TEARDOWN_PARENT(fixture_name) { implementation }
+ *
+ * Same as FIXTURE_TEARDOWN() but run this code in a parent process.  This
+ * enables the test process to drop its privileges without impacting the
+ * related FIXTURE_TEARDOWN_PARENT() (e.g. to remove files from a directory
+ * where write access was dropped).
+ *
+ * To make it possible for the parent process to use *self*, share (MAP_SHARED)
+ * the fixture data between all forked processes.
+ */
+#define FIXTURE_TEARDOWN_PARENT(fixture_name) \
+	static const bool fixture_name##_teardown_parent = true; \
+	__FIXTURE_TEARDOWN(fixture_name)
+
+#define __FIXTURE_TEARDOWN(fixture_name) \
+	static void fixture_name##_teardown( \
+		struct __test_metadata __attribute__((unused)) *_metadata, \
+		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
+		const FIXTURE_VARIANT(fixture_name) \
+			__attribute__((unused)) *variant)
+
+/**
+ * FIXTURE_VARIANT() - Optionally called once per fixture
+ * to declare fixture variant
+ *
+ * @fixture_name: fixture name
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_VARIANT(fixture_name) {
+ *       type property1;
+ *       ...
+ *     };
+ *
+ * Defines type of constant parameters provided to FIXTURE_SETUP(), TEST_F() and
+ * FIXTURE_TEARDOWN as *variant*. Variants allow the same tests to be run with
+ * different arguments.
+ */
+#define FIXTURE_VARIANT(fixture_name) struct _fixture_variant_##fixture_name
+
+/**
+ * FIXTURE_VARIANT_ADD() - Called once per fixture
+ * variant to setup and register the data
+ *
+ * @fixture_name: fixture name
+ * @variant_name: name of the parameter set
+ *
+ * .. code-block:: c
+ *
+ *     FIXTURE_VARIANT_ADD(fixture_name, variant_name) {
+ *       .property1 = val1,
+ *       ...
+ *     };
+ *
+ * Defines a variant of the test fixture, provided to FIXTURE_SETUP() and
+ * TEST_F() as *variant*. Tests of each fixture will be run once for each
+ * variant.
+ */
+#define FIXTURE_VARIANT_ADD(fixture_name, variant_name) \
+	extern const FIXTURE_VARIANT(fixture_name) \
+		_##fixture_name##_##variant_name##_variant; \
+	static struct __fixture_variant_metadata \
+		_##fixture_name##_##variant_name##_object = \
+		{ .name = #variant_name, \
+		  .data = &_##fixture_name##_##variant_name##_variant}; \
+	static void __attribute__((constructor)) \
+		_register_##fixture_name##_##variant_name(void) \
+	{ \
+		__register_fixture_variant(&_##fixture_name##_fixture_object, \
+			&_##fixture_name##_##variant_name##_object);	\
+	} \
+	const FIXTURE_VARIANT(fixture_name) \
+		_##fixture_name##_##variant_name##_variant =
+
+/**
+ * TEST_F() - Emits test registration and helpers for
+ * fixture-based test cases
+ *
+ * @fixture_name: fixture name
+ * @test_name: test name
+ *
+ * .. code-block:: c
+ *
+ *     TEST_F(fixture, name) { implementation }
+ *
+ * Defines a test that depends on a fixture (e.g., is part of a test case).
+ * Very similar to TEST() except that *self* is the setup instance of fixture's
+ * datatype exposed for use by the implementation.
+ *
+ * The _metadata object is shared (MAP_SHARED) with all the potential forked
+ * processes, which enables them to use EXCEPT_*() and ASSERT_*().
+ *
+ * The *self* object is only shared with the potential forked processes if
+ * FIXTURE_TEARDOWN_PARENT() is used instead of FIXTURE_TEARDOWN().
+ */
+#define TEST_F(fixture_name, test_name) \
+	__TEST_F_IMPL(fixture_name, test_name, -1, TEST_TIMEOUT_DEFAULT)
+
+#define TEST_F_SIGNAL(fixture_name, test_name, signal) \
+	__TEST_F_IMPL(fixture_name, test_name, signal, TEST_TIMEOUT_DEFAULT)
+
+#define TEST_F_TIMEOUT(fixture_name, test_name, timeout) \
+	__TEST_F_IMPL(fixture_name, test_name, -1, timeout)
+
+#define __TEST_F_IMPL(fixture_name, test_name, signal, tmout) \
+	static void fixture_name##_##test_name( \
+		struct __test_metadata *_metadata, \
+		FIXTURE_DATA(fixture_name) *self, \
+		const FIXTURE_VARIANT(fixture_name) *variant); \
+	static void wrapper_##fixture_name##_##test_name( \
+		struct __test_metadata *_metadata, \
+		struct __fixture_variant_metadata *variant) \
+	{ \
+		/* fixture data is alloced, setup, and torn down per call. */ \
+		FIXTURE_DATA(fixture_name) self_private, *self = NULL; \
+		pid_t child = 1; \
+		int status = 0; \
+		/* Makes sure there is only one teardown, even when child forks again. */ \
+		_metadata->no_teardown = mmap(NULL, sizeof(*_metadata->no_teardown), \
+			PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0); \
+		*_metadata->no_teardown = true; \
+		if (sizeof(*self) > 0) { \
+			if (fixture_name##_teardown_parent) { \
+				self = mmap(NULL, sizeof(*self), PROT_READ | PROT_WRITE, \
+					MAP_SHARED | MAP_ANONYMOUS, -1, 0); \
+			} else { \
+				memset(&self_private, 0, sizeof(self_private)); \
+				self = &self_private; \
+			} \
+		} \
+		_metadata->variant = variant->data; \
+		_metadata->self = self; \
+		/* _metadata and potentially self are shared with all forks. */ \
+		child = fork(); \
+		if (child == 0) { \
+			fixture_name##_setup(_metadata, self, variant->data); \
+			/* Let setup failure terminate early. */ \
+			if (_metadata->exit_code) \
+				_exit(0); \
+			*_metadata->no_teardown = false; \
+			fixture_name##_##test_name(_metadata, self, variant->data); \
+			_metadata->teardown_fn(false, _metadata, self, variant->data); \
+			_exit(0); \
+		} else if (child < 0 || child != waitpid(child, &status, 0)) { \
+			ksft_print_msg("ERROR SPAWNING TEST GRANDCHILD\n"); \
+			_metadata->exit_code = KSFT_FAIL; \
+		} \
+		_metadata->teardown_fn(true, _metadata, self, variant->data); \
+		munmap(_metadata->no_teardown, sizeof(*_metadata->no_teardown)); \
+		_metadata->no_teardown = NULL; \
+		if (self && fixture_name##_teardown_parent) \
+			munmap(self, sizeof(*self)); \
+		if (WIFEXITED(status)) { \
+			if (WEXITSTATUS(status)) \
+				_metadata->exit_code = WEXITSTATUS(status); \
+		} else if (WIFSIGNALED(status)) { \
+			/* Forward signal to __wait_for_test(). */ \
+			kill(getpid(), WTERMSIG(status)); \
+		} \
+	} \
+	static void wrapper_##fixture_name##_##test_name##_teardown( \
+		bool in_parent, struct __test_metadata *_metadata, \
+		void *self, const void *variant) \
+	{ \
+		if (fixture_name##_teardown_parent == in_parent && \
+				!__atomic_test_and_set(_metadata->no_teardown, __ATOMIC_RELAXED)) \
+			fixture_name##_teardown(_metadata, self, variant); \
+	} \
+	static struct __test_metadata *_##fixture_name##_##test_name##_object; \
+	static void __attribute__((constructor)) \
+			_register_##fixture_name##_##test_name(void) \
+	{ \
+		struct __test_metadata *object = mmap(NULL, sizeof(*object), \
+			PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0); \
+		object->name = #test_name; \
+		object->fn = &wrapper_##fixture_name##_##test_name; \
+		object->fixture = &_##fixture_name##_fixture_object; \
+		object->teardown_fn = &wrapper_##fixture_name##_##test_name##_teardown; \
+		object->termsig = signal; \
+		object->timeout = tmout; \
+		_##fixture_name##_##test_name##_object = object; \
+		__register_test(object); \
+	} \
+	static void fixture_name##_##test_name( \
+		struct __test_metadata __attribute__((unused)) *_metadata, \
+		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
+		const FIXTURE_VARIANT(fixture_name) \
+			__attribute__((unused)) *variant)
+
+/**
+ * TEST_HARNESS_MAIN - Simple wrapper to run the test harness
+ *
+ * .. code-block:: c
+ *
+ *     TEST_HARNESS_MAIN
+ *
+ * Use once to append a main() to the test file.
+ */
+#define TEST_HARNESS_MAIN \
+	int main(int argc, char **argv) { \
+		return test_harness_run(argc, argv); \
+	}
+
+/**
+ * DOC: operators
+ *
+ * Operators for use in TEST() and TEST_F().
+ * ASSERT_* calls will stop test execution immediately.
+ * EXPECT_* calls will emit a failure warning, note it, and continue.
+ */
+
+/**
+ * ASSERT_EQ()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_EQ(expected, measured): expected == measured
+ */
+#define ASSERT_EQ(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, ==, 1)
+
+/**
+ * ASSERT_NE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_NE(expected, measured): expected != measured
+ */
+#define ASSERT_NE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, !=, 1)
+
+/**
+ * ASSERT_LT()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_LT(expected, measured): expected < measured
+ */
+#define ASSERT_LT(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, <, 1)
+
+/**
+ * ASSERT_LE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_LE(expected, measured): expected <= measured
+ */
+#define ASSERT_LE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, <=, 1)
+
+/**
+ * ASSERT_GT()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_GT(expected, measured): expected > measured
+ */
+#define ASSERT_GT(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, >, 1)
+
+/**
+ * ASSERT_GE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_GE(expected, measured): expected >= measured
+ */
+#define ASSERT_GE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, >=, 1)
+
+/**
+ * ASSERT_NULL()
+ *
+ * @seen: measured value
+ *
+ * ASSERT_NULL(measured): NULL == measured
+ */
+#define ASSERT_NULL(seen) \
+	__EXPECT(NULL, "NULL", seen, #seen, ==, 1)
+
+/**
+ * ASSERT_TRUE()
+ *
+ * @seen: measured value
+ *
+ * ASSERT_TRUE(measured): measured != 0
+ */
+#define ASSERT_TRUE(seen) \
+	__EXPECT(0, "0", seen, #seen, !=, 1)
+
+/**
+ * ASSERT_FALSE()
+ *
+ * @seen: measured value
+ *
+ * ASSERT_FALSE(measured): measured == 0
+ */
+#define ASSERT_FALSE(seen) \
+	__EXPECT(0, "0", seen, #seen, ==, 1)
+
+/**
+ * ASSERT_STREQ()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_STREQ(expected, measured): !strcmp(expected, measured)
+ */
+#define ASSERT_STREQ(expected, seen) \
+	__EXPECT_STR(expected, seen, ==, 1)
+
+/**
+ * ASSERT_STRNE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * ASSERT_STRNE(expected, measured): strcmp(expected, measured)
+ */
+#define ASSERT_STRNE(expected, seen) \
+	__EXPECT_STR(expected, seen, !=, 1)
+
+/**
+ * EXPECT_EQ()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_EQ(expected, measured): expected == measured
+ */
+#define EXPECT_EQ(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, ==, 0)
+
+/**
+ * EXPECT_NE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_NE(expected, measured): expected != measured
+ */
+#define EXPECT_NE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, !=, 0)
+
+/**
+ * EXPECT_LT()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_LT(expected, measured): expected < measured
+ */
+#define EXPECT_LT(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, <, 0)
+
+/**
+ * EXPECT_LE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_LE(expected, measured): expected <= measured
+ */
+#define EXPECT_LE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, <=, 0)
+
+/**
+ * EXPECT_GT()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_GT(expected, measured): expected > measured
+ */
+#define EXPECT_GT(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, >, 0)
+
+/**
+ * EXPECT_GE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_GE(expected, measured): expected >= measured
+ */
+#define EXPECT_GE(expected, seen) \
+	__EXPECT(expected, #expected, seen, #seen, >=, 0)
+
+/**
+ * EXPECT_NULL()
+ *
+ * @seen: measured value
+ *
+ * EXPECT_NULL(measured): NULL == measured
+ */
+#define EXPECT_NULL(seen) \
+	__EXPECT(NULL, "NULL", seen, #seen, ==, 0)
+
+/**
+ * EXPECT_TRUE()
+ *
+ * @seen: measured value
+ *
+ * EXPECT_TRUE(measured): 0 != measured
+ */
+#define EXPECT_TRUE(seen) \
+	__EXPECT(0, "0", seen, #seen, !=, 0)
+
+/**
+ * EXPECT_FALSE()
+ *
+ * @seen: measured value
+ *
+ * EXPECT_FALSE(measured): 0 == measured
+ */
+#define EXPECT_FALSE(seen) \
+	__EXPECT(0, "0", seen, #seen, ==, 0)
+
+/**
+ * EXPECT_STREQ()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_STREQ(expected, measured): !strcmp(expected, measured)
+ */
+#define EXPECT_STREQ(expected, seen) \
+	__EXPECT_STR(expected, seen, ==, 0)
+
+/**
+ * EXPECT_STRNE()
+ *
+ * @expected: expected value
+ * @seen: measured value
+ *
+ * EXPECT_STRNE(expected, measured): strcmp(expected, measured)
+ */
+#define EXPECT_STRNE(expected, seen) \
+	__EXPECT_STR(expected, seen, !=, 0)
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(a)	(sizeof(a) / sizeof(a[0]))
+#endif
+
+/* Support an optional handler after and ASSERT_* or EXPECT_*.  The approach is
+ * not thread-safe, but it should be fine in most sane test scenarios.
+ *
+ * Using __bail(), which optionally abort()s, is the easiest way to early
+ * return while still providing an optional block to the API consumer.
+ */
+#define OPTIONAL_HANDLER(_assert) \
+	for (; _metadata->trigger; _metadata->trigger = \
+			__bail(_assert, _metadata))
+
+#define is_signed_var(var)	(!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
+
+#define __EXPECT(_expected, _expected_str, _seen, _seen_str, _t, _assert) do { \
+	/* Avoid multiple evaluation of the cases */ \
+	__typeof__(_expected) __exp = (_expected); \
+	__typeof__(_seen) __seen = (_seen); \
+	if (!(__exp _t __seen)) { \
+		/* Report with actual signedness to avoid weird output. */ \
+		switch (is_signed_var(__exp) * 2 + is_signed_var(__seen)) { \
+		case 0: { \
+			uintmax_t __exp_print = (uintmax_t)__exp; \
+			uintmax_t __seen_print = (uintmax_t)__seen; \
+			__TH_LOG("Expected %s (%ju) %s %s (%ju)", \
+				 _expected_str, __exp_print, #_t, \
+				 _seen_str, __seen_print); \
+			break; \
+			} \
+		case 1: { \
+			uintmax_t __exp_print = (uintmax_t)__exp; \
+			intmax_t  __seen_print = (intmax_t)__seen; \
+			__TH_LOG("Expected %s (%ju) %s %s (%jd)", \
+				 _expected_str, __exp_print, #_t, \
+				 _seen_str, __seen_print); \
+			break; \
+			} \
+		case 2: { \
+			intmax_t  __exp_print = (intmax_t)__exp; \
+			uintmax_t __seen_print = (uintmax_t)__seen; \
+			__TH_LOG("Expected %s (%jd) %s %s (%ju)", \
+				 _expected_str, __exp_print, #_t, \
+				 _seen_str, __seen_print); \
+			break; \
+			} \
+		case 3: { \
+			intmax_t  __exp_print = (intmax_t)__exp; \
+			intmax_t  __seen_print = (intmax_t)__seen; \
+			__TH_LOG("Expected %s (%jd) %s %s (%jd)", \
+				 _expected_str, __exp_print, #_t, \
+				 _seen_str, __seen_print); \
+			break; \
+			} \
+		} \
+		_metadata->exit_code = KSFT_FAIL; \
+		/* Ensure the optional handler is triggered */ \
+		_metadata->trigger = 1; \
+	} \
+} while (0); OPTIONAL_HANDLER(_assert)
+
+#define __EXPECT_STR(_expected, _seen, _t, _assert) do { \
+	const char *__exp = (_expected); \
+	const char *__seen = (_seen); \
+	if (!(strcmp(__exp, __seen) _t 0))  { \
+		__TH_LOG("Expected '%s' %s '%s'.", __exp, #_t, __seen); \
+		_metadata->exit_code = KSFT_FAIL; \
+		_metadata->trigger = 1; \
+	} \
+} while (0); OPTIONAL_HANDLER(_assert)
+
+/* List helpers */
+#define __LIST_APPEND(head, item) \
+{ \
+	/* Circular linked list where only prev is circular. */ \
+	if (head == NULL) { \
+		head = item; \
+		item->next = NULL; \
+		item->prev = item; \
+		return;	\
+	} \
+	if (__constructor_order_forward) { \
+		item->next = NULL; \
+		item->prev = head->prev; \
+		item->prev->next = item; \
+		head->prev = item; \
+	} else { \
+		item->next = head; \
+		item->next->prev = item; \
+		item->prev = item; \
+		head = item; \
+	} \
+}
+
+struct __test_results {
+	char reason[1024];	/* Reason for test result */
+};
+
+struct __test_metadata;
+struct __fixture_variant_metadata;
+
+/* Contains all the information about a fixture. */
+struct __fixture_metadata {
+	const char *name;
+	struct __test_metadata *tests;
+	struct __fixture_variant_metadata *variant;
+	struct __fixture_metadata *prev, *next;
+} _fixture_global __attribute__((unused)) = {
+	.name = "global",
+	.prev = &_fixture_global,
+};
+
+struct __test_xfail {
+	struct __fixture_metadata *fixture;
+	struct __fixture_variant_metadata *variant;
+	struct __test_metadata *test;
+	struct __test_xfail *prev, *next;
+};
+
+/**
+ * XFAIL_ADD() - mark variant + test case combination as expected to fail
+ * @fixture_name: name of the fixture
+ * @variant_name: name of the variant
+ * @test_name: name of the test case
+ *
+ * Mark a combination of variant + test case for a given fixture as expected
+ * to fail. Tests marked this way will report XPASS / XFAIL return codes,
+ * instead of PASS / FAIL,and use respective counters.
+ */
+#define XFAIL_ADD(fixture_name, variant_name, test_name) \
+	static struct __test_xfail \
+		_##fixture_name##_##variant_name##_##test_name##_xfail = \
+	{ \
+		.fixture = &_##fixture_name##_fixture_object, \
+		.variant = &_##fixture_name##_##variant_name##_object, \
+	}; \
+	static void __attribute__((constructor)) \
+		_register_##fixture_name##_##variant_name##_##test_name##_xfail(void) \
+	{ \
+		_##fixture_name##_##variant_name##_##test_name##_xfail.test = \
+			_##fixture_name##_##test_name##_object; \
+		__register_xfail(&_##fixture_name##_##variant_name##_##test_name##_xfail); \
+	}
+
+static struct __fixture_metadata *__fixture_list = &_fixture_global;
+static bool __constructor_order_forward;
+
+static inline void __register_fixture(struct __fixture_metadata *f)
+{
+	__LIST_APPEND(__fixture_list, f);
+}
+
+struct __fixture_variant_metadata {
+	const char *name;
+	const void *data;
+	struct __test_xfail *xfails;
+	struct __fixture_variant_metadata *prev, *next;
+};
+
+static inline void
+__register_fixture_variant(struct __fixture_metadata *f,
+			   struct __fixture_variant_metadata *variant)
+{
+	__LIST_APPEND(f->variant, variant);
+}
+
+/* Contains all the information for test execution and status checking. */
+struct __test_metadata {
+	const char *name;
+	void (*fn)(struct __test_metadata *,
+		   struct __fixture_variant_metadata *);
+	pid_t pid;	/* pid of test when being run */
+	struct __fixture_metadata *fixture;
+	void (*teardown_fn)(bool in_parent, struct __test_metadata *_metadata,
+			    void *self, const void *variant);
+	int termsig;
+	int exit_code;
+	int trigger; /* extra handler after the evaluation */
+	int timeout;	/* seconds to wait for test timeout */
+	bool aborted;	/* stopped test due to failed ASSERT */
+	bool *no_teardown; /* fixture needs teardown */
+	void *self;
+	const void *variant;
+	struct __test_results *results;
+	struct __test_metadata *prev, *next;
+};
+
+static inline bool __test_passed(struct __test_metadata *metadata)
+{
+	return metadata->exit_code != KSFT_FAIL &&
+	       metadata->exit_code <= KSFT_SKIP;
+}
+
+/*
+ * Since constructors are called in reverse order, reverse the test
+ * list so tests are run in source declaration order.
+ * https://gcc.gnu.org/onlinedocs/gccint/Initialization.html
+ * However, it seems not all toolchains do this correctly, so use
+ * __constructor_order_foward to detect which direction is called first
+ * and adjust list building logic to get things running in the right
+ * direction.
+ */
+static inline void __register_test(struct __test_metadata *t)
+{
+	__LIST_APPEND(t->fixture->tests, t);
+}
+
+static inline void __register_xfail(struct __test_xfail *xf)
+{
+	__LIST_APPEND(xf->variant->xfails, xf);
+}
+
+static inline int __bail(int for_realz, struct __test_metadata *t)
+{
+	/* if this is ASSERT, return immediately. */
+	if (for_realz) {
+		if (t->teardown_fn)
+			t->teardown_fn(false, t, t->self, t->variant);
+		abort();
+	}
+	/* otherwise, end the for loop and continue. */
+	return 0;
+}
+
+static void __wait_for_test(struct __test_metadata *t)
+{
+	/*
+	 * Sets status so that WIFEXITED(status) returns true and
+	 * WEXITSTATUS(status) returns KSFT_FAIL.  This safe default value
+	 * should never be evaluated because of the waitpid(2) check and
+	 * timeout handling.
+	 */
+	int status = KSFT_FAIL << 8;
+	struct pollfd poll_child;
+	int ret, child, childfd;
+	bool timed_out = false;
+
+	childfd = syscall(__NR_pidfd_open, t->pid, 0);
+	if (childfd == -1) {
+		t->exit_code = KSFT_FAIL;
+		fprintf(TH_LOG_STREAM,
+			"# %s: unable to open pidfd\n",
+			t->name);
+		return;
+	}
+
+	poll_child.fd = childfd;
+	poll_child.events = POLLIN;
+	ret = poll(&poll_child, 1, t->timeout * 1000);
+	if (ret == -1) {
+		t->exit_code = KSFT_FAIL;
+		fprintf(TH_LOG_STREAM,
+			"# %s: unable to wait on child pidfd\n",
+			t->name);
+		return;
+	} else if (ret == 0) {
+		timed_out = true;
+		/* signal process group */
+		kill(-(t->pid), SIGKILL);
+	}
+	child = waitpid(t->pid, &status, WNOHANG);
+	if (child == -1 && errno != EINTR) {
+		t->exit_code = KSFT_FAIL;
+		fprintf(TH_LOG_STREAM,
+			"# %s: Failed to wait for PID %d (errno: %d)\n",
+			t->name, t->pid, errno);
+		return;
+	}
+
+	if (timed_out) {
+		t->exit_code = KSFT_FAIL;
+		fprintf(TH_LOG_STREAM,
+			"# %s: Test terminated by timeout\n", t->name);
+	} else if (WIFEXITED(status)) {
+		if (WEXITSTATUS(status) == KSFT_SKIP ||
+		    WEXITSTATUS(status) == KSFT_XPASS ||
+		    WEXITSTATUS(status) == KSFT_XFAIL) {
+			t->exit_code = WEXITSTATUS(status);
+		} else if (t->termsig != -1) {
+			t->exit_code = KSFT_FAIL;
+			fprintf(TH_LOG_STREAM,
+				"# %s: Test exited normally instead of by signal (code: %d)\n",
+				t->name,
+				WEXITSTATUS(status));
+		} else {
+			switch (WEXITSTATUS(status)) {
+			/* Success */
+			case KSFT_PASS:
+				t->exit_code = KSFT_PASS;
+				break;
+			/* Failure */
+			default:
+				t->exit_code = KSFT_FAIL;
+				fprintf(TH_LOG_STREAM,
+					"# %s: Test failed\n",
+					t->name);
+			}
+		}
+	} else if (WIFSIGNALED(status)) {
+		t->exit_code = KSFT_FAIL;
+		if (WTERMSIG(status) == SIGABRT) {
+			fprintf(TH_LOG_STREAM,
+				"# %s: Test terminated by assertion\n",
+				t->name);
+		} else if (WTERMSIG(status) == t->termsig) {
+			t->exit_code = KSFT_PASS;
+		} else {
+			fprintf(TH_LOG_STREAM,
+				"# %s: Test terminated unexpectedly by signal %d\n",
+				t->name,
+				WTERMSIG(status));
+		}
+	} else {
+		t->exit_code = KSFT_FAIL;
+		fprintf(TH_LOG_STREAM,
+			"# %s: Test ended in some other way [%u]\n",
+			t->name,
+			status);
+	}
+}
+
+static void test_harness_list_tests(void)
+{
+	struct __fixture_variant_metadata *v;
+	struct __fixture_metadata *f;
+	struct __test_metadata *t;
+
+	for (f = __fixture_list; f; f = f->next) {
+		v = f->variant;
+		t = f->tests;
+
+		if (f == __fixture_list)
+			fprintf(stderr, "%-20s %-25s %s\n",
+				"# FIXTURE", "VARIANT", "TEST");
+		else
+			fprintf(stderr, "--------------------------------------------------------------------------------\n");
+
+		do {
+			fprintf(stderr, "%-20s %-25s %s\n",
+				t == f->tests ? f->name : "",
+				v ? v->name : "",
+				t ? t->name : "");
+
+			v = v ? v->next : NULL;
+			t = t ? t->next : NULL;
+		} while (v || t);
+	}
+}
+
+static int test_harness_argv_check(int argc, char **argv)
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "dhlF:f:V:v:t:T:r:")) != -1) {
+		switch (opt) {
+		case 'f':
+		case 'F':
+		case 'v':
+		case 'V':
+		case 't':
+		case 'T':
+		case 'r':
+			break;
+		case 'l':
+			test_harness_list_tests();
+			return KSFT_SKIP;
+		case 'd':
+			ksft_debug_enabled = true;
+			break;
+		case 'h':
+		default:
+			fprintf(stderr,
+				"Usage: %s [-h|-l|-d] [-t|-T|-v|-V|-f|-F|-r name]\n"
+				"\t-h       print help\n"
+				"\t-l       list all tests\n"
+				"\t-d       enable debug prints\n"
+				"\n"
+				"\t-t name  include test\n"
+				"\t-T name  exclude test\n"
+				"\t-v name  include variant\n"
+				"\t-V name  exclude variant\n"
+				"\t-f name  include fixture\n"
+				"\t-F name  exclude fixture\n"
+				"\t-r name  run specified test\n"
+				"\n"
+				"Test filter options can be specified "
+				"multiple times. The filtering stops\n"
+				"at the first match. For example to "
+				"include all tests from variant 'bla'\n"
+				"but not test 'foo' specify '-T foo -v bla'.\n"
+				"", argv[0]);
+			return opt == 'h' ? KSFT_SKIP : KSFT_FAIL;
+		}
+	}
+
+	return KSFT_PASS;
+}
+
+static bool test_enabled(int argc, char **argv,
+			 struct __fixture_metadata *f,
+			 struct __fixture_variant_metadata *v,
+			 struct __test_metadata *t)
+{
+	unsigned int flen = 0, vlen = 0, tlen = 0;
+	bool has_positive = false;
+	int opt;
+
+	optind = 1;
+	while ((opt = getopt(argc, argv, "dF:f:V:v:t:T:r:")) != -1) {
+		if (opt != 'd')
+			has_positive |= islower(opt);
+
+		switch (tolower(opt)) {
+		case 't':
+			if (!strcmp(t->name, optarg))
+				return islower(opt);
+			break;
+		case 'f':
+			if (!strcmp(f->name, optarg))
+				return islower(opt);
+			break;
+		case 'v':
+			if (!strcmp(v->name, optarg))
+				return islower(opt);
+			break;
+		case 'r':
+			if (!tlen) {
+				flen = strlen(f->name);
+				vlen = strlen(v->name);
+				tlen = strlen(t->name);
+			}
+			if (strlen(optarg) == flen + 1 + vlen + !!vlen + tlen &&
+			    !strncmp(f->name, &optarg[0], flen) &&
+			    !strncmp(v->name, &optarg[flen + 1], vlen) &&
+			    !strncmp(t->name, &optarg[flen + 1 + vlen + !!vlen], tlen))
+				return true;
+			break;
+		}
+	}
+
+	/*
+	 * If there are no positive tests then we assume user just wants
+	 * exclusions and everything else is a pass.
+	 */
+	return !has_positive;
+}
+
+static void __run_test(struct __fixture_metadata *f,
+		       struct __fixture_variant_metadata *variant,
+		       struct __test_metadata *t)
+{
+	struct __test_xfail *xfail;
+	char test_name[1024];
+	const char *diagnostic;
+	int child;
+
+	/* reset test struct */
+	t->exit_code = KSFT_PASS;
+	t->trigger = 0;
+	t->aborted = false;
+	t->no_teardown = NULL;
+	memset(t->results->reason, 0, sizeof(t->results->reason));
+
+	snprintf(test_name, sizeof(test_name), "%s%s%s.%s",
+		 f->name, variant->name[0] ? "." : "", variant->name, t->name);
+
+	ksft_print_msg(" RUN           %s ...\n", test_name);
+
+	/* Make sure output buffers are flushed before fork */
+	fflush(stdout);
+	fflush(stderr);
+
+	child = fork();
+	if (child < 0) {
+		ksft_print_msg("ERROR SPAWNING TEST CHILD\n");
+		t->exit_code = KSFT_FAIL;
+	} else if (child == 0) {
+		setpgrp();
+		t->fn(t, variant);
+		_exit(t->exit_code);
+	} else {
+		t->pid = child;
+		__wait_for_test(t);
+	}
+	ksft_print_msg("         %4s  %s\n",
+		       __test_passed(t) ? "OK" : "FAIL", test_name);
+
+	/* Check if we're expecting this test to fail */
+	for (xfail = variant->xfails; xfail; xfail = xfail->next)
+		if (xfail->test == t)
+			break;
+	if (xfail)
+		t->exit_code = __test_passed(t) ? KSFT_XPASS : KSFT_XFAIL;
+
+	if (t->results->reason[0])
+		diagnostic = t->results->reason;
+	else if (t->exit_code == KSFT_PASS || t->exit_code == KSFT_FAIL)
+		diagnostic = NULL;
+	else
+		diagnostic = "unknown";
+
+	ksft_test_result_code(t->exit_code, test_name,
+			      diagnostic ? "%s" : NULL, diagnostic);
+}
+
+static int test_harness_run(int argc, char **argv)
+{
+	struct __fixture_variant_metadata no_variant = { .name = "", };
+	struct __fixture_variant_metadata *v;
+	struct __fixture_metadata *f;
+	struct __test_results *results;
+	struct __test_metadata *t;
+	int ret;
+	unsigned int case_count = 0, test_count = 0;
+	unsigned int count = 0;
+	unsigned int pass_count = 0;
+
+	ret = test_harness_argv_check(argc, argv);
+	if (ret != KSFT_PASS)
+		return ret;
+
+	for (f = __fixture_list; f; f = f->next) {
+		for (v = f->variant ?: &no_variant; v; v = v->next) {
+			unsigned int old_tests = test_count;
+
+			for (t = f->tests; t; t = t->next)
+				if (test_enabled(argc, argv, f, v, t))
+					test_count++;
+
+			if (old_tests != test_count)
+				case_count++;
+		}
+	}
+
+	results = mmap(NULL, sizeof(*results), PROT_READ | PROT_WRITE,
+		       MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+
+	ksft_print_header();
+	ksft_set_plan(test_count);
+	ksft_print_msg("Starting %u tests from %u test cases.\n",
+	       test_count, case_count);
+	for (f = __fixture_list; f; f = f->next) {
+		for (v = f->variant ?: &no_variant; v; v = v->next) {
+			for (t = f->tests; t; t = t->next) {
+				if (!test_enabled(argc, argv, f, v, t))
+					continue;
+				count++;
+				t->results = results;
+				__run_test(f, v, t);
+				t->results = NULL;
+				if (__test_passed(t))
+					pass_count++;
+				else
+					ret = 1;
+			}
+		}
+	}
+	munmap(results, sizeof(*results));
+
+	ksft_print_msg("%s: %u / %u tests passed.\n", ret ? "FAILED" : "PASSED",
+			pass_count, count);
+	ksft_exit(ret == 0);
+
+	/* unreachable */
+	return KSFT_FAIL;
+}
+
+static void __attribute__((constructor)) __constructor_order_first(void)
+{
+	__constructor_order_forward = true;
+}
+
+#endif  /* __KSELFTEST_HARNESS_H */
diff --git a/tools/testing/selftests/kselftest_harness/.gitignore b/tools/testing/selftests/kselftest_harness/.gitignore
new file mode 100644
index 000000000000..e4e476a333c9
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness/.gitignore
@@ -0,0 +1,2 @@
+/harness-selftest
+/harness-selftest.seen
diff --git a/tools/testing/selftests/kselftest_harness/Makefile b/tools/testing/selftests/kselftest_harness/Makefile
new file mode 100644
index 000000000000..d2369c01701a
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_PROGS_EXTENDED := harness-selftest
+TEST_PROGS := harness-selftest.sh
+TEST_FILES := harness-selftest.expected
+EXTRA_CLEAN := harness-selftest.seen
+
+include ../lib.mk
diff --git a/tools/testing/selftests/kselftest_harness/harness-selftest.c b/tools/testing/selftests/kselftest_harness/harness-selftest.c
new file mode 100644
index 000000000000..7820bb5d0e6d
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness/harness-selftest.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+
+#include <sys/resource.h>
+#include <sys/prctl.h>
+
+/* Avoid any inconsistencies */
+#define TH_LOG_STREAM stdout
+
+#include "kselftest_harness.h"
+
+static void test_helper(struct __test_metadata *_metadata)
+{
+	ASSERT_EQ(0, 0);
+}
+
+TEST(standalone_pass) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 0);
+	EXPECT_EQ(0, 0);
+	test_helper(_metadata);
+	TH_LOG("after");
+}
+
+TEST(standalone_fail) {
+	TH_LOG("before");
+	EXPECT_EQ(0, 0);
+	EXPECT_EQ(0, 1);
+	ASSERT_EQ(0, 1);
+	TH_LOG("after");
+}
+
+TEST_SIGNAL(signal_pass, SIGUSR1) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 0);
+	TH_LOG("after");
+	kill(getpid(), SIGUSR1);
+}
+
+TEST_SIGNAL(signal_fail, SIGUSR1) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 1);
+	TH_LOG("after");
+	kill(getpid(), SIGUSR1);
+}
+
+FIXTURE(fixture) {
+	pid_t testpid;
+};
+
+FIXTURE_SETUP(fixture) {
+	TH_LOG("setup");
+	self->testpid = getpid();
+}
+
+FIXTURE_TEARDOWN(fixture) {
+	TH_LOG("teardown same-process=%d", self->testpid == getpid());
+}
+
+TEST_F(fixture, pass) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 0);
+	test_helper(_metadata);
+	standalone_pass(_metadata);
+	TH_LOG("after");
+}
+
+TEST_F(fixture, fail) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 1);
+	fixture_pass(_metadata, self, variant);
+	TH_LOG("after");
+}
+
+TEST_F_TIMEOUT(fixture, timeout, 1) {
+	TH_LOG("before");
+	sleep(2);
+	TH_LOG("after");
+}
+
+FIXTURE(fixture_parent) {
+	pid_t testpid;
+};
+
+FIXTURE_SETUP(fixture_parent) {
+	TH_LOG("setup");
+	self->testpid = getpid();
+}
+
+FIXTURE_TEARDOWN_PARENT(fixture_parent) {
+	TH_LOG("teardown same-process=%d", self->testpid == getpid());
+}
+
+TEST_F(fixture_parent, pass) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 0);
+	TH_LOG("after");
+}
+
+FIXTURE(fixture_setup_failure) {
+	pid_t testpid;
+};
+
+FIXTURE_SETUP(fixture_setup_failure) {
+	TH_LOG("setup");
+	self->testpid = getpid();
+	ASSERT_EQ(0, 1);
+}
+
+FIXTURE_TEARDOWN(fixture_setup_failure) {
+	TH_LOG("teardown same-process=%d", self->testpid == getpid());
+}
+
+TEST_F(fixture_setup_failure, pass) {
+	TH_LOG("before");
+	ASSERT_EQ(0, 0);
+	TH_LOG("after");
+}
+
+int main(int argc, char **argv)
+{
+	/*
+	 * The harness uses abort() to signal assertion failures, which triggers coredumps.
+	 * This may be useful to debug real failures but not for this selftest, disable them.
+	 */
+	struct rlimit rlimit = {
+		.rlim_cur = 0,
+		.rlim_max = 0,
+	};
+
+	prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
+	setrlimit(RLIMIT_CORE, &rlimit);
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/kselftest_harness/harness-selftest.expected b/tools/testing/selftests/kselftest_harness/harness-selftest.expected
new file mode 100644
index 000000000000..97e1418c1c7e
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness/harness-selftest.expected
@@ -0,0 +1,64 @@
+TAP version 13
+1..9
+# Starting 9 tests from 4 test cases.
+#  RUN           global.standalone_pass ...
+# harness-selftest.c:19:standalone_pass:before
+# harness-selftest.c:23:standalone_pass:after
+#            OK  global.standalone_pass
+ok 1 global.standalone_pass
+#  RUN           global.standalone_fail ...
+# harness-selftest.c:27:standalone_fail:before
+# harness-selftest.c:29:standalone_fail:Expected 0 (0) == 1 (1)
+# harness-selftest.c:30:standalone_fail:Expected 0 (0) == 1 (1)
+# standalone_fail: Test terminated by assertion
+#          FAIL  global.standalone_fail
+not ok 2 global.standalone_fail
+#  RUN           global.signal_pass ...
+# harness-selftest.c:35:signal_pass:before
+# harness-selftest.c:37:signal_pass:after
+#            OK  global.signal_pass
+ok 3 global.signal_pass
+#  RUN           global.signal_fail ...
+# harness-selftest.c:42:signal_fail:before
+# harness-selftest.c:43:signal_fail:Expected 0 (0) == 1 (1)
+# signal_fail: Test terminated by assertion
+#          FAIL  global.signal_fail
+not ok 4 global.signal_fail
+#  RUN           fixture.pass ...
+# harness-selftest.c:53:pass:setup
+# harness-selftest.c:62:pass:before
+# harness-selftest.c:19:pass:before
+# harness-selftest.c:23:pass:after
+# harness-selftest.c:66:pass:after
+# harness-selftest.c:58:pass:teardown same-process=1
+#            OK  fixture.pass
+ok 5 fixture.pass
+#  RUN           fixture.fail ...
+# harness-selftest.c:53:fail:setup
+# harness-selftest.c:70:fail:before
+# harness-selftest.c:71:fail:Expected 0 (0) == 1 (1)
+# harness-selftest.c:58:fail:teardown same-process=1
+# fail: Test terminated by assertion
+#          FAIL  fixture.fail
+not ok 6 fixture.fail
+#  RUN           fixture.timeout ...
+# harness-selftest.c:53:timeout:setup
+# harness-selftest.c:77:timeout:before
+# timeout: Test terminated by timeout
+#          FAIL  fixture.timeout
+not ok 7 fixture.timeout
+#  RUN           fixture_parent.pass ...
+# harness-selftest.c:87:pass:setup
+# harness-selftest.c:96:pass:before
+# harness-selftest.c:98:pass:after
+# harness-selftest.c:92:pass:teardown same-process=0
+#            OK  fixture_parent.pass
+ok 8 fixture_parent.pass
+#  RUN           fixture_setup_failure.pass ...
+# harness-selftest.c:106:pass:setup
+# harness-selftest.c:108:pass:Expected 0 (0) == 1 (1)
+# pass: Test terminated by assertion
+#          FAIL  fixture_setup_failure.pass
+not ok 9 fixture_setup_failure.pass
+# FAILED: 4 / 9 tests passed.
+# Totals: pass:4 fail:5 xfail:0 xpass:0 skip:0 error:0
diff --git a/tools/testing/selftests/kselftest_harness/harness-selftest.sh b/tools/testing/selftests/kselftest_harness/harness-selftest.sh
new file mode 100755
index 000000000000..fe72d16370fe
--- /dev/null
+++ b/tools/testing/selftests/kselftest_harness/harness-selftest.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Selftest for kselftest_harness.h
+#
+
+set -e
+
+DIR="$(dirname $(readlink -f "$0"))"
+
+"$DIR"/harness-selftest > harness-selftest.seen || true
+
+diff -u "$DIR"/harness-selftest.expected harness-selftest.seen
diff --git a/tools/testing/selftests/kselftest_install.sh b/tools/testing/selftests/kselftest_install.sh
index 1555fbdb08da..407af7da7037 100755
--- a/tools/testing/selftests/kselftest_install.sh
+++ b/tools/testing/selftests/kselftest_install.sh
@@ -1,37 +1,35 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Kselftest Install
 # Install kselftest tests
 # Author: Shuah Khan <shuahkh@osg.samsung.com>
 # Copyright (C) 2015 Samsung Electronics Co., Ltd.
 
-# This software may be freely redistributed under the terms of the GNU
-# General Public License (GPLv2).
-
-install_loc=`pwd`
-
 main()
 {
-	if [ $(basename $install_loc) !=  "selftests" ]; then
+	base_dir=`pwd`
+	install_dir="$base_dir"/kselftest_install
+
+	# Make sure we're in the selftests top-level directory.
+	if [ $(basename "$base_dir") !=  "selftests" ]; then
 		echo "$0: Please run it in selftests directory ..."
 		exit 1;
 	fi
+
+	# Only allow installation into an existing location.
 	if [ "$#" -eq 0 ]; then
-		echo "$0: Installing in default location - $install_loc ..."
+		echo "$0: Installing in default location - $install_dir ..."
 	elif [ ! -d "$1" ]; then
 		echo "$0: $1 doesn't exist!!"
 		exit 1;
 	else
-		install_loc=$1
-		echo "$0: Installing in specified location - $install_loc ..."
+		install_dir="$1"
+		echo "$0: Installing in specified location - $install_dir ..."
 	fi
 
-	install_dir=$install_loc/kselftest
-
-# Create install directory
-	mkdir -p $install_dir
-# Build tests
-	INSTALL_PATH=$install_dir make install
+	# Build tests
+	KSFT_INSTALL_PATH="$install_dir" make install
 }
 
 main "$@"
diff --git a/tools/testing/selftests/kselftest_module.h b/tools/testing/selftests/kselftest_module.h
new file mode 100644
index 000000000000..63cd7487373f
--- /dev/null
+++ b/tools/testing/selftests/kselftest_module.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+#ifndef __KSELFTEST_MODULE_H
+#define __KSELFTEST_MODULE_H
+
+#include <linux/module.h>
+#include <linux/panic.h>
+
+/*
+ * Test framework for writing test modules to be loaded by kselftest.
+ * See Documentation/dev-tools/kselftest.rst for an example test module.
+ */
+
+#define KSTM_MODULE_GLOBALS()			\
+static unsigned int total_tests __initdata;	\
+static unsigned int failed_tests __initdata;	\
+static unsigned int skipped_tests __initdata
+
+#define KSTM_CHECK_ZERO(x) do {						\
+	total_tests++;							\
+	if (x) {							\
+		pr_warn("TC failed at %s:%d\n", __func__, __LINE__);	\
+		failed_tests++;						\
+	}								\
+} while (0)
+
+static inline int kstm_report(unsigned int total_tests, unsigned int failed_tests,
+			      unsigned int skipped_tests)
+{
+	if (failed_tests == 0) {
+		if (skipped_tests) {
+			pr_info("skipped %u tests\n", skipped_tests);
+			pr_info("remaining %u tests passed\n", total_tests);
+		} else
+			pr_info("all %u tests passed\n", total_tests);
+	} else
+		pr_warn("failed %u out of %u tests\n", failed_tests, total_tests);
+
+	return failed_tests ? -EINVAL : 0;
+}
+
+#define KSTM_MODULE_LOADERS(__module)			\
+static int __init __module##_init(void)			\
+{							\
+	pr_info("loaded.\n");				\
+	add_taint(TAINT_TEST, LOCKDEP_STILL_OK);	\
+	selftest();					\
+	return kstm_report(total_tests, failed_tests, skipped_tests);	\
+}							\
+static void __exit __module##_exit(void)		\
+{							\
+	pr_info("unloaded.\n");				\
+}							\
+module_init(__module##_init);				\
+module_exit(__module##_exit)
+
+MODULE_INFO(test, "Y");
+
+#endif	/* __KSELFTEST_MODULE_H */
diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
new file mode 100644
index 000000000000..1d41a046a7bf
--- /dev/null
+++ b/tools/testing/selftests/kvm/.gitignore
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+*
+!/**/
+!*.c
+!*.h
+!*.S
+!*.sh
+!.gitignore
+!config
+!settings
+!Makefile
+!Makefile.kvm
+\ No newline at end of file
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
new file mode 100644
index 000000000000..f2b223072b62
--- /dev/null
+++ b/tools/testing/selftests/kvm/Makefile
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+top_srcdir = ../../../..
+include $(top_srcdir)/scripts/subarch.include
+ARCH            ?= $(SUBARCH)
+
+ifeq ($(ARCH),$(filter $(ARCH),arm64 s390 riscv x86 x86_64 loongarch))
+# Top-level selftests allows ARCH=x86_64 :-(
+ifeq ($(ARCH),x86_64)
+	override ARCH := x86
+endif
+include Makefile.kvm
+else
+# Empty targets for unsupported architectures
+all:
+clean:
+endif
diff --git a/tools/testing/selftests/kvm/Makefile.kvm b/tools/testing/selftests/kvm/Makefile.kvm
new file mode 100644
index 000000000000..ba5c2b643efa
--- /dev/null
+++ b/tools/testing/selftests/kvm/Makefile.kvm
@@ -0,0 +1,356 @@
+# SPDX-License-Identifier: GPL-2.0-only
+include ../../../build/Build.include
+
+all:
+
+LIBKVM += lib/assert.c
+LIBKVM += lib/elf.c
+LIBKVM += lib/guest_modes.c
+LIBKVM += lib/io.c
+LIBKVM += lib/kvm_util.c
+LIBKVM += lib/lru_gen_util.c
+LIBKVM += lib/memstress.c
+LIBKVM += lib/guest_sprintf.c
+LIBKVM += lib/rbtree.c
+LIBKVM += lib/sparsebit.c
+LIBKVM += lib/test_util.c
+LIBKVM += lib/ucall_common.c
+LIBKVM += lib/userfaultfd_util.c
+
+LIBKVM_STRING += lib/string_override.c
+
+LIBKVM_x86 += lib/x86/apic.c
+LIBKVM_x86 += lib/x86/handlers.S
+LIBKVM_x86 += lib/x86/hyperv.c
+LIBKVM_x86 += lib/x86/memstress.c
+LIBKVM_x86 += lib/x86/pmu.c
+LIBKVM_x86 += lib/x86/processor.c
+LIBKVM_x86 += lib/x86/sev.c
+LIBKVM_x86 += lib/x86/svm.c
+LIBKVM_x86 += lib/x86/ucall.c
+LIBKVM_x86 += lib/x86/vmx.c
+
+LIBKVM_arm64 += lib/arm64/gic.c
+LIBKVM_arm64 += lib/arm64/gic_v3.c
+LIBKVM_arm64 += lib/arm64/gic_v3_its.c
+LIBKVM_arm64 += lib/arm64/handlers.S
+LIBKVM_arm64 += lib/arm64/processor.c
+LIBKVM_arm64 += lib/arm64/spinlock.c
+LIBKVM_arm64 += lib/arm64/ucall.c
+LIBKVM_arm64 += lib/arm64/vgic.c
+
+LIBKVM_s390 += lib/s390/diag318_test_handler.c
+LIBKVM_s390 += lib/s390/processor.c
+LIBKVM_s390 += lib/s390/ucall.c
+LIBKVM_s390 += lib/s390/facility.c
+
+LIBKVM_riscv += lib/riscv/handlers.S
+LIBKVM_riscv += lib/riscv/processor.c
+LIBKVM_riscv += lib/riscv/ucall.c
+
+LIBKVM_loongarch += lib/loongarch/processor.c
+LIBKVM_loongarch += lib/loongarch/ucall.c
+LIBKVM_loongarch += lib/loongarch/exception.S
+
+# Non-compiled test targets
+TEST_PROGS_x86 += x86/nx_huge_pages_test.sh
+
+# Compiled test targets valid on all architectures with libkvm support
+TEST_GEN_PROGS_COMMON = demand_paging_test
+TEST_GEN_PROGS_COMMON += dirty_log_test
+TEST_GEN_PROGS_COMMON += guest_print_test
+TEST_GEN_PROGS_COMMON += irqfd_test
+TEST_GEN_PROGS_COMMON += kvm_binary_stats_test
+TEST_GEN_PROGS_COMMON += kvm_create_max_vcpus
+TEST_GEN_PROGS_COMMON += kvm_page_table_test
+TEST_GEN_PROGS_COMMON += set_memory_region_test
+
+# Compiled test targets
+TEST_GEN_PROGS_x86 = $(TEST_GEN_PROGS_COMMON)
+TEST_GEN_PROGS_x86 += x86/cpuid_test
+TEST_GEN_PROGS_x86 += x86/cr4_cpuid_sync_test
+TEST_GEN_PROGS_x86 += x86/dirty_log_page_splitting_test
+TEST_GEN_PROGS_x86 += x86/feature_msrs_test
+TEST_GEN_PROGS_x86 += x86/exit_on_emulation_failure_test
+TEST_GEN_PROGS_x86 += x86/fastops_test
+TEST_GEN_PROGS_x86 += x86/fix_hypercall_test
+TEST_GEN_PROGS_x86 += x86/hwcr_msr_test
+TEST_GEN_PROGS_x86 += x86/hyperv_clock
+TEST_GEN_PROGS_x86 += x86/hyperv_cpuid
+TEST_GEN_PROGS_x86 += x86/hyperv_evmcs
+TEST_GEN_PROGS_x86 += x86/hyperv_extended_hypercalls
+TEST_GEN_PROGS_x86 += x86/hyperv_features
+TEST_GEN_PROGS_x86 += x86/hyperv_ipi
+TEST_GEN_PROGS_x86 += x86/hyperv_svm_test
+TEST_GEN_PROGS_x86 += x86/hyperv_tlb_flush
+TEST_GEN_PROGS_x86 += x86/kvm_clock_test
+TEST_GEN_PROGS_x86 += x86/kvm_pv_test
+TEST_GEN_PROGS_x86 += x86/kvm_buslock_test
+TEST_GEN_PROGS_x86 += x86/monitor_mwait_test
+TEST_GEN_PROGS_x86 += x86/msrs_test
+TEST_GEN_PROGS_x86 += x86/nested_close_kvm_test
+TEST_GEN_PROGS_x86 += x86/nested_emulation_test
+TEST_GEN_PROGS_x86 += x86/nested_exceptions_test
+TEST_GEN_PROGS_x86 += x86/nested_invalid_cr3_test
+TEST_GEN_PROGS_x86 += x86/nested_tsc_adjust_test
+TEST_GEN_PROGS_x86 += x86/nested_tsc_scaling_test
+TEST_GEN_PROGS_x86 += x86/platform_info_test
+TEST_GEN_PROGS_x86 += x86/pmu_counters_test
+TEST_GEN_PROGS_x86 += x86/pmu_event_filter_test
+TEST_GEN_PROGS_x86 += x86/private_mem_conversions_test
+TEST_GEN_PROGS_x86 += x86/private_mem_kvm_exits_test
+TEST_GEN_PROGS_x86 += x86/set_boot_cpu_id
+TEST_GEN_PROGS_x86 += x86/set_sregs_test
+TEST_GEN_PROGS_x86 += x86/smaller_maxphyaddr_emulation_test
+TEST_GEN_PROGS_x86 += x86/smm_test
+TEST_GEN_PROGS_x86 += x86/state_test
+TEST_GEN_PROGS_x86 += x86/vmx_preemption_timer_test
+TEST_GEN_PROGS_x86 += x86/svm_vmcall_test
+TEST_GEN_PROGS_x86 += x86/svm_int_ctl_test
+TEST_GEN_PROGS_x86 += x86/svm_nested_shutdown_test
+TEST_GEN_PROGS_x86 += x86/svm_nested_soft_inject_test
+TEST_GEN_PROGS_x86 += x86/tsc_scaling_sync
+TEST_GEN_PROGS_x86 += x86/sync_regs_test
+TEST_GEN_PROGS_x86 += x86/ucna_injection_test
+TEST_GEN_PROGS_x86 += x86/userspace_io_test
+TEST_GEN_PROGS_x86 += x86/userspace_msr_exit_test
+TEST_GEN_PROGS_x86 += x86/vmx_apic_access_test
+TEST_GEN_PROGS_x86 += x86/vmx_dirty_log_test
+TEST_GEN_PROGS_x86 += x86/vmx_exception_with_invalid_guest_state
+TEST_GEN_PROGS_x86 += x86/vmx_msrs_test
+TEST_GEN_PROGS_x86 += x86/vmx_invalid_nested_guest_state
+TEST_GEN_PROGS_x86 += x86/vmx_nested_la57_state_test
+TEST_GEN_PROGS_x86 += x86/vmx_set_nested_state_test
+TEST_GEN_PROGS_x86 += x86/apic_bus_clock_test
+TEST_GEN_PROGS_x86 += x86/xapic_ipi_test
+TEST_GEN_PROGS_x86 += x86/xapic_state_test
+TEST_GEN_PROGS_x86 += x86/xcr0_cpuid_test
+TEST_GEN_PROGS_x86 += x86/xss_msr_test
+TEST_GEN_PROGS_x86 += x86/debug_regs
+TEST_GEN_PROGS_x86 += x86/tsc_msrs_test
+TEST_GEN_PROGS_x86 += x86/vmx_pmu_caps_test
+TEST_GEN_PROGS_x86 += x86/xen_shinfo_test
+TEST_GEN_PROGS_x86 += x86/xen_vmcall_test
+TEST_GEN_PROGS_x86 += x86/sev_init2_tests
+TEST_GEN_PROGS_x86 += x86/sev_migrate_tests
+TEST_GEN_PROGS_x86 += x86/sev_smoke_test
+TEST_GEN_PROGS_x86 += x86/amx_test
+TEST_GEN_PROGS_x86 += x86/max_vcpuid_cap_test
+TEST_GEN_PROGS_x86 += x86/triple_fault_event_test
+TEST_GEN_PROGS_x86 += x86/recalc_apic_map_test
+TEST_GEN_PROGS_x86 += x86/aperfmperf_test
+TEST_GEN_PROGS_x86 += access_tracking_perf_test
+TEST_GEN_PROGS_x86 += coalesced_io_test
+TEST_GEN_PROGS_x86 += dirty_log_perf_test
+TEST_GEN_PROGS_x86 += guest_memfd_test
+TEST_GEN_PROGS_x86 += hardware_disable_test
+TEST_GEN_PROGS_x86 += memslot_modification_stress_test
+TEST_GEN_PROGS_x86 += memslot_perf_test
+TEST_GEN_PROGS_x86 += mmu_stress_test
+TEST_GEN_PROGS_x86 += rseq_test
+TEST_GEN_PROGS_x86 += steal_time
+TEST_GEN_PROGS_x86 += system_counter_offset_test
+TEST_GEN_PROGS_x86 += pre_fault_memory_test
+
+# Compiled outputs used by test targets
+TEST_GEN_PROGS_EXTENDED_x86 += x86/nx_huge_pages_test
+
+TEST_GEN_PROGS_arm64 = $(TEST_GEN_PROGS_COMMON)
+TEST_GEN_PROGS_arm64 += arm64/aarch32_id_regs
+TEST_GEN_PROGS_arm64 += arm64/arch_timer_edge_cases
+TEST_GEN_PROGS_arm64 += arm64/at
+TEST_GEN_PROGS_arm64 += arm64/debug-exceptions
+TEST_GEN_PROGS_arm64 += arm64/hello_el2
+TEST_GEN_PROGS_arm64 += arm64/host_sve
+TEST_GEN_PROGS_arm64 += arm64/hypercalls
+TEST_GEN_PROGS_arm64 += arm64/external_aborts
+TEST_GEN_PROGS_arm64 += arm64/page_fault_test
+TEST_GEN_PROGS_arm64 += arm64/psci_test
+TEST_GEN_PROGS_arm64 += arm64/sea_to_user
+TEST_GEN_PROGS_arm64 += arm64/set_id_regs
+TEST_GEN_PROGS_arm64 += arm64/smccc_filter
+TEST_GEN_PROGS_arm64 += arm64/vcpu_width_config
+TEST_GEN_PROGS_arm64 += arm64/vgic_init
+TEST_GEN_PROGS_arm64 += arm64/vgic_irq
+TEST_GEN_PROGS_arm64 += arm64/vgic_lpi_stress
+TEST_GEN_PROGS_arm64 += arm64/vpmu_counter_access
+TEST_GEN_PROGS_arm64 += arm64/no-vgic-v3
+TEST_GEN_PROGS_arm64 += arm64/kvm-uuid
+TEST_GEN_PROGS_arm64 += access_tracking_perf_test
+TEST_GEN_PROGS_arm64 += arch_timer
+TEST_GEN_PROGS_arm64 += coalesced_io_test
+TEST_GEN_PROGS_arm64 += dirty_log_perf_test
+TEST_GEN_PROGS_arm64 += get-reg-list
+TEST_GEN_PROGS_arm64 += guest_memfd_test
+TEST_GEN_PROGS_arm64 += memslot_modification_stress_test
+TEST_GEN_PROGS_arm64 += memslot_perf_test
+TEST_GEN_PROGS_arm64 += mmu_stress_test
+TEST_GEN_PROGS_arm64 += rseq_test
+TEST_GEN_PROGS_arm64 += steal_time
+
+TEST_GEN_PROGS_s390 = $(TEST_GEN_PROGS_COMMON)
+TEST_GEN_PROGS_s390 += s390/memop
+TEST_GEN_PROGS_s390 += s390/resets
+TEST_GEN_PROGS_s390 += s390/sync_regs_test
+TEST_GEN_PROGS_s390 += s390/tprot
+TEST_GEN_PROGS_s390 += s390/cmma_test
+TEST_GEN_PROGS_s390 += s390/debug_test
+TEST_GEN_PROGS_s390 += s390/cpumodel_subfuncs_test
+TEST_GEN_PROGS_s390 += s390/shared_zeropage_test
+TEST_GEN_PROGS_s390 += s390/ucontrol_test
+TEST_GEN_PROGS_s390 += s390/user_operexec
+TEST_GEN_PROGS_s390 += rseq_test
+
+TEST_GEN_PROGS_riscv = $(TEST_GEN_PROGS_COMMON)
+TEST_GEN_PROGS_riscv += riscv/sbi_pmu_test
+TEST_GEN_PROGS_riscv += riscv/ebreak_test
+TEST_GEN_PROGS_riscv += access_tracking_perf_test
+TEST_GEN_PROGS_riscv += arch_timer
+TEST_GEN_PROGS_riscv += coalesced_io_test
+TEST_GEN_PROGS_riscv += dirty_log_perf_test
+TEST_GEN_PROGS_riscv += get-reg-list
+TEST_GEN_PROGS_riscv += memslot_modification_stress_test
+TEST_GEN_PROGS_riscv += memslot_perf_test
+TEST_GEN_PROGS_riscv += mmu_stress_test
+TEST_GEN_PROGS_riscv += rseq_test
+TEST_GEN_PROGS_riscv += steal_time
+
+TEST_GEN_PROGS_loongarch = arch_timer
+TEST_GEN_PROGS_loongarch += coalesced_io_test
+TEST_GEN_PROGS_loongarch += demand_paging_test
+TEST_GEN_PROGS_loongarch += dirty_log_perf_test
+TEST_GEN_PROGS_loongarch += dirty_log_test
+TEST_GEN_PROGS_loongarch += guest_print_test
+TEST_GEN_PROGS_loongarch += hardware_disable_test
+TEST_GEN_PROGS_loongarch += kvm_binary_stats_test
+TEST_GEN_PROGS_loongarch += kvm_create_max_vcpus
+TEST_GEN_PROGS_loongarch += kvm_page_table_test
+TEST_GEN_PROGS_loongarch += memslot_modification_stress_test
+TEST_GEN_PROGS_loongarch += memslot_perf_test
+TEST_GEN_PROGS_loongarch += set_memory_region_test
+
+SPLIT_TESTS += arch_timer
+SPLIT_TESTS += get-reg-list
+
+TEST_PROGS += $(TEST_PROGS_$(ARCH))
+TEST_GEN_PROGS += $(TEST_GEN_PROGS_$(ARCH))
+TEST_GEN_PROGS_EXTENDED += $(TEST_GEN_PROGS_EXTENDED_$(ARCH))
+LIBKVM += $(LIBKVM_$(ARCH))
+
+OVERRIDE_TARGETS = 1
+
+# lib.mak defines $(OUTPUT), prepends $(OUTPUT)/ to $(TEST_GEN_PROGS), and most
+# importantly defines, i.e. overwrites, $(CC) (unless `make -e` or `make CC=`,
+# which causes the environment variable to override the makefile).
+include ../lib.mk
+include ../cgroup/lib/libcgroup.mk
+
+INSTALL_HDR_PATH = $(top_srcdir)/usr
+LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
+LINUX_TOOL_INCLUDE = $(top_srcdir)/tools/include
+LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
+CFLAGS += -Wall -Wstrict-prototypes -Wuninitialized -O2 -g -std=gnu99 \
+	-Wno-gnu-variable-sized-type-not-at-end -MD -MP -DCONFIG_64BIT \
+	-fno-builtin-memcmp -fno-builtin-memcpy \
+	-fno-builtin-memset -fno-builtin-strnlen \
+	-fno-stack-protector -fno-PIE -fno-strict-aliasing \
+	-I$(LINUX_TOOL_INCLUDE) -I$(LINUX_TOOL_ARCH_INCLUDE) \
+	-I$(LINUX_HDR_PATH) -Iinclude -I$(<D) -Iinclude/$(ARCH) \
+	-I ../rseq -I.. $(EXTRA_CFLAGS) $(KHDR_INCLUDES)
+ifeq ($(ARCH),s390)
+	CFLAGS += -march=z10
+endif
+ifeq ($(ARCH),x86)
+ifeq ($(shell echo "void foo(void) { }" | $(CC) -march=x86-64-v2 -x c - -c -o /dev/null 2>/dev/null; echo "$$?"),0)
+	CFLAGS += -march=x86-64-v2
+endif
+endif
+ifeq ($(ARCH),arm64)
+tools_dir := $(top_srcdir)/tools
+arm64_tools_dir := $(tools_dir)/arch/arm64/tools/
+
+ifneq ($(abs_objdir),)
+arm64_hdr_outdir := $(abs_objdir)/tools/
+else
+arm64_hdr_outdir := $(tools_dir)/
+endif
+
+GEN_HDRS := $(arm64_hdr_outdir)arch/arm64/include/generated/
+CFLAGS += -I$(GEN_HDRS)
+
+$(GEN_HDRS): $(wildcard $(arm64_tools_dir)/*)
+	$(MAKE) -C $(arm64_tools_dir) OUTPUT=$(arm64_hdr_outdir)
+endif
+
+no-pie-option := $(call try-run, echo 'int main(void) { return 0; }' | \
+        $(CC) -Werror $(CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
+
+# On s390, build the testcases KVM-enabled
+pgste-option = $(call try-run, echo 'int main(void) { return 0; }' | \
+	$(CC) -Werror -Wl$(comma)--s390-pgste -x c - -o "$$TMP",-Wl$(comma)--s390-pgste)
+
+LDLIBS += -ldl
+LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
+
+LIBKVM_C := $(filter %.c,$(LIBKVM))
+LIBKVM_S := $(filter %.S,$(LIBKVM))
+LIBKVM_C_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_C))
+LIBKVM_S_OBJ := $(patsubst %.S, $(OUTPUT)/%.o, $(LIBKVM_S))
+LIBKVM_STRING_OBJ := $(patsubst %.c, $(OUTPUT)/%.o, $(LIBKVM_STRING))
+LIBKVM_OBJS = $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ) $(LIBKVM_STRING_OBJ) $(LIBCGROUP_O)
+SPLIT_TEST_GEN_PROGS := $(patsubst %, $(OUTPUT)/%, $(SPLIT_TESTS))
+SPLIT_TEST_GEN_OBJ := $(patsubst %, $(OUTPUT)/$(ARCH)/%.o, $(SPLIT_TESTS))
+
+TEST_GEN_OBJ = $(patsubst %, %.o, $(TEST_GEN_PROGS))
+TEST_GEN_OBJ += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
+TEST_DEP_FILES = $(patsubst %.o, %.d, $(TEST_GEN_OBJ))
+TEST_DEP_FILES += $(patsubst %.o, %.d, $(LIBKVM_OBJS))
+TEST_DEP_FILES += $(patsubst %.o, %.d, $(SPLIT_TEST_GEN_OBJ))
+-include $(TEST_DEP_FILES)
+
+$(shell mkdir -p $(sort $(OUTPUT)/$(ARCH) $(dir $(LIBKVM_C_OBJ) $(LIBKVM_S_OBJ))))
+
+$(filter-out $(SPLIT_TEST_GEN_PROGS), $(TEST_GEN_PROGS)) \
+$(TEST_GEN_PROGS_EXTENDED): %: %.o
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIBKVM_OBJS) $(LDLIBS) -o $@
+$(TEST_GEN_OBJ): $(OUTPUT)/%.o: %.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+$(SPLIT_TEST_GEN_PROGS): $(OUTPUT)/%: $(OUTPUT)/%.o $(OUTPUT)/$(ARCH)/%.o
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $^ $(LDLIBS) -o $@
+$(SPLIT_TEST_GEN_OBJ): $(OUTPUT)/$(ARCH)/%.o: $(ARCH)/%.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+EXTRA_CLEAN += $(GEN_HDRS) \
+	       $(LIBKVM_OBJS) \
+	       $(SPLIT_TEST_GEN_OBJ) \
+	       $(TEST_DEP_FILES) \
+	       $(TEST_GEN_OBJ) \
+	       cscope.*
+
+$(LIBKVM_C_OBJ): $(OUTPUT)/%.o: %.c $(GEN_HDRS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+$(LIBKVM_S_OBJ): $(OUTPUT)/%.o: %.S $(GEN_HDRS)
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+# Compile the string overrides as freestanding to prevent the compiler from
+# generating self-referential code, e.g. without "freestanding" the compiler may
+# "optimize" memcmp() by invoking memcmp(), thus causing infinite recursion.
+$(LIBKVM_STRING_OBJ): $(OUTPUT)/%.o: %.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c -ffreestanding $< -o $@
+
+$(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))
+$(SPLIT_TEST_GEN_OBJ): $(GEN_HDRS)
+$(TEST_GEN_PROGS): $(LIBKVM_OBJS)
+$(TEST_GEN_PROGS_EXTENDED): $(LIBKVM_OBJS)
+$(TEST_GEN_OBJ): $(GEN_HDRS)
+
+cscope: include_paths = $(LINUX_TOOL_INCLUDE) $(LINUX_HDR_PATH) include lib ..
+cscope:
+	$(RM) cscope.*
+	(find $(include_paths) -name '*.h' \
+		-exec realpath --relative-base=$(PWD) {} \;; \
+	find . -name '*.c' \
+		-exec realpath --relative-base=$(PWD) {} \;) | sort -u > cscope.files
+	cscope -b
diff --git a/tools/testing/selftests/kvm/access_tracking_perf_test.c b/tools/testing/selftests/kvm/access_tracking_perf_test.c
new file mode 100644
index 000000000000..b058f27b2141
--- /dev/null
+++ b/tools/testing/selftests/kvm/access_tracking_perf_test.c
@@ -0,0 +1,609 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * access_tracking_perf_test
+ *
+ * Copyright (C) 2021, Google, Inc.
+ *
+ * This test measures the performance effects of KVM's access tracking.
+ * Access tracking is driven by the MMU notifiers test_young, clear_young, and
+ * clear_flush_young. These notifiers do not have a direct userspace API,
+ * however the clear_young notifier can be triggered either by
+ *   1. marking a pages as idle in /sys/kernel/mm/page_idle/bitmap OR
+ *   2. adding a new MGLRU generation using the lru_gen debugfs file.
+ * This test leverages page_idle to enable access tracking on guest memory
+ * unless MGLRU is enabled, in which case MGLRU is used.
+ *
+ * To measure performance this test runs a VM with a configurable number of
+ * vCPUs that each touch every page in disjoint regions of memory. Performance
+ * is measured in the time it takes all vCPUs to finish touching their
+ * predefined region.
+ *
+ * Note that a deterministic correctness test of access tracking is not possible
+ * by using page_idle or MGLRU aging as it exists today. This is for a few
+ * reasons:
+ *
+ * 1. page_idle and MGLRU only issue clear_young notifiers, which lack a TLB flush.
+ *    This means subsequent guest accesses are not guaranteed to see page table
+ *    updates made by KVM until some time in the future.
+ *
+ * 2. page_idle only operates on LRU pages. Newly allocated pages are not
+ *    immediately allocated to LRU lists. Instead they are held in a "pagevec",
+ *    which is drained to LRU lists some time in the future. There is no
+ *    userspace API to force this drain to occur.
+ *
+ * These limitations are worked around in this test by using a large enough
+ * region of memory for each vCPU such that the number of translations cached in
+ * the TLB and the number of pages held in pagevecs are a small fraction of the
+ * overall workload. And if either of those conditions are not true (for example
+ * in nesting, where TLB size is unlimited) this test will print a warning
+ * rather than silently passing.
+ */
+#include <inttypes.h>
+#include <limits.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "memstress.h"
+#include "guest_modes.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#include "cgroup_util.h"
+#include "lru_gen_util.h"
+
+static const char *TEST_MEMCG_NAME = "access_tracking_perf_test";
+
+/* Global variable used to synchronize all of the vCPU threads. */
+static int iteration;
+
+/* The cgroup memory controller root. Needed for lru_gen-based aging. */
+char cgroup_root[PATH_MAX];
+
+/* Defines what vCPU threads should do during a given iteration. */
+static enum {
+	/* Run the vCPU to access all its memory. */
+	ITERATION_ACCESS_MEMORY,
+	/* Mark the vCPU's memory idle in page_idle. */
+	ITERATION_MARK_IDLE,
+} iteration_work;
+
+/* The iteration that was last completed by each vCPU. */
+static int vcpu_last_completed_iteration[KVM_MAX_VCPUS];
+
+/* Whether to overlap the regions of memory vCPUs access. */
+static bool overlap_memory_access;
+
+/*
+ * If the test should only warn if there are too many idle pages (i.e., it is
+ * expected).
+ * -1: Not yet set.
+ *  0: We do not expect too many idle pages, so FAIL if too many idle pages.
+ *  1: Having too many idle pages is expected, so merely print a warning if
+ *     too many idle pages are found.
+ */
+static int idle_pages_warn_only = -1;
+
+/* Whether or not to use MGLRU instead of page_idle for access tracking */
+static bool use_lru_gen;
+
+/* Total number of pages to expect in the memcg after touching everything */
+static long test_pages;
+
+/* Last generation we found the pages in */
+static int lru_gen_last_gen = -1;
+
+struct test_params {
+	/* The backing source for the region of memory. */
+	enum vm_mem_backing_src_type backing_src;
+
+	/* The amount of memory to allocate for each vCPU. */
+	uint64_t vcpu_memory_bytes;
+
+	/* The number of vCPUs to create in the VM. */
+	int nr_vcpus;
+};
+
+static uint64_t pread_uint64(int fd, const char *filename, uint64_t index)
+{
+	uint64_t value;
+	off_t offset = index * sizeof(value);
+
+	TEST_ASSERT(pread(fd, &value, sizeof(value), offset) == sizeof(value),
+		    "pread from %s offset 0x%" PRIx64 " failed!",
+		    filename, offset);
+
+	return value;
+
+}
+
+#define PAGEMAP_PRESENT (1ULL << 63)
+#define PAGEMAP_PFN_MASK ((1ULL << 55) - 1)
+
+static uint64_t lookup_pfn(int pagemap_fd, struct kvm_vm *vm, uint64_t gva)
+{
+	uint64_t hva = (uint64_t) addr_gva2hva(vm, gva);
+	uint64_t entry;
+	uint64_t pfn;
+
+	entry = pread_uint64(pagemap_fd, "pagemap", hva / getpagesize());
+	if (!(entry & PAGEMAP_PRESENT))
+		return 0;
+
+	pfn = entry & PAGEMAP_PFN_MASK;
+	__TEST_REQUIRE(pfn, "Looking up PFNs requires CAP_SYS_ADMIN");
+
+	return pfn;
+}
+
+static bool is_page_idle(int page_idle_fd, uint64_t pfn)
+{
+	uint64_t bits = pread_uint64(page_idle_fd, "page_idle", pfn / 64);
+
+	return !!((bits >> (pfn % 64)) & 1);
+}
+
+static void mark_page_idle(int page_idle_fd, uint64_t pfn)
+{
+	uint64_t bits = 1ULL << (pfn % 64);
+
+	TEST_ASSERT(pwrite(page_idle_fd, &bits, 8, 8 * (pfn / 64)) == 8,
+		    "Set page_idle bits for PFN 0x%" PRIx64, pfn);
+}
+
+static void too_many_idle_pages(long idle_pages, long total_pages, int vcpu_idx)
+{
+	char prefix[18] = {};
+
+	if (vcpu_idx >= 0)
+		snprintf(prefix, 18, "vCPU%d: ", vcpu_idx);
+
+	TEST_ASSERT(idle_pages_warn_only,
+		    "%sToo many pages still idle (%lu out of %lu)",
+		    prefix, idle_pages, total_pages);
+
+	printf("WARNING: %sToo many pages still idle (%lu out of %lu), "
+	       "this will affect performance results.\n",
+	       prefix, idle_pages, total_pages);
+}
+
+static void pageidle_mark_vcpu_memory_idle(struct kvm_vm *vm,
+					   struct memstress_vcpu_args *vcpu_args)
+{
+	int vcpu_idx = vcpu_args->vcpu_idx;
+	uint64_t base_gva = vcpu_args->gva;
+	uint64_t pages = vcpu_args->pages;
+	uint64_t page;
+	uint64_t still_idle = 0;
+	uint64_t no_pfn = 0;
+	int page_idle_fd;
+	int pagemap_fd;
+
+	/* If vCPUs are using an overlapping region, let vCPU 0 mark it idle. */
+	if (overlap_memory_access && vcpu_idx)
+		return;
+
+	page_idle_fd = open("/sys/kernel/mm/page_idle/bitmap", O_RDWR);
+	TEST_ASSERT(page_idle_fd > 0, "Failed to open page_idle.");
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	TEST_ASSERT(pagemap_fd > 0, "Failed to open pagemap.");
+
+	for (page = 0; page < pages; page++) {
+		uint64_t gva = base_gva + page * memstress_args.guest_page_size;
+		uint64_t pfn = lookup_pfn(pagemap_fd, vm, gva);
+
+		if (!pfn) {
+			no_pfn++;
+			continue;
+		}
+
+		if (is_page_idle(page_idle_fd, pfn)) {
+			still_idle++;
+			continue;
+		}
+
+		mark_page_idle(page_idle_fd, pfn);
+	}
+
+	/*
+	 * Assumption: Less than 1% of pages are going to be swapped out from
+	 * under us during this test.
+	 */
+	TEST_ASSERT(no_pfn < pages / 100,
+		    "vCPU %d: No PFN for %" PRIu64 " out of %" PRIu64 " pages.",
+		    vcpu_idx, no_pfn, pages);
+
+	/*
+	 * Check that at least 90% of memory has been marked idle (the rest
+	 * might not be marked idle because the pages have not yet made it to an
+	 * LRU list or the translations are still cached in the TLB). 90% is
+	 * arbitrary; high enough that we ensure most memory access went through
+	 * access tracking but low enough as to not make the test too brittle
+	 * over time and across architectures.
+	 */
+	if (still_idle >= pages / 10)
+		too_many_idle_pages(still_idle, pages,
+				    overlap_memory_access ? -1 : vcpu_idx);
+
+	close(page_idle_fd);
+	close(pagemap_fd);
+}
+
+int find_generation(struct memcg_stats *stats, long total_pages)
+{
+	/*
+	 * For finding the generation that contains our pages, use the same
+	 * 90% threshold that page_idle uses.
+	 */
+	int gen = lru_gen_find_generation(stats, total_pages * 9 / 10);
+
+	if (gen >= 0)
+		return gen;
+
+	if (!idle_pages_warn_only) {
+		TEST_FAIL("Could not find a generation with 90%% of guest memory (%ld pages).",
+			   total_pages * 9 / 10);
+		return gen;
+	}
+
+	/*
+	 * We couldn't find a generation with 90% of guest memory, which can
+	 * happen if access tracking is unreliable. Simply look for a majority
+	 * of pages.
+	 */
+	puts("WARNING: Couldn't find a generation with 90% of guest memory. "
+	     "Performance results may not be accurate.");
+	gen = lru_gen_find_generation(stats, total_pages / 2);
+	TEST_ASSERT(gen >= 0,
+		    "Could not find a generation with 50%% of guest memory (%ld pages).",
+		    total_pages / 2);
+	return gen;
+}
+
+static void lru_gen_mark_memory_idle(struct kvm_vm *vm)
+{
+	struct timespec ts_start;
+	struct timespec ts_elapsed;
+	struct memcg_stats stats;
+	int new_gen;
+
+	/* Make a new generation */
+	clock_gettime(CLOCK_MONOTONIC, &ts_start);
+	lru_gen_do_aging(&stats, TEST_MEMCG_NAME);
+	ts_elapsed = timespec_elapsed(ts_start);
+
+	/* Check the generation again */
+	new_gen = find_generation(&stats, test_pages);
+
+	/*
+	 * This function should only be invoked with newly-accessed pages,
+	 * so pages should always move to a newer generation.
+	 */
+	if (new_gen <= lru_gen_last_gen) {
+		/* We did not move to a newer generation. */
+		long idle_pages = lru_gen_sum_memcg_stats_for_gen(lru_gen_last_gen,
+								  &stats);
+
+		too_many_idle_pages(min_t(long, idle_pages, test_pages),
+				    test_pages, -1);
+	}
+	pr_info("%-30s: %ld.%09lds\n",
+		"Mark memory idle (lru_gen)", ts_elapsed.tv_sec,
+		ts_elapsed.tv_nsec);
+	lru_gen_last_gen = new_gen;
+}
+
+static void assert_ucall(struct kvm_vcpu *vcpu, uint64_t expected_ucall)
+{
+	struct ucall uc;
+	uint64_t actual_ucall = get_ucall(vcpu, &uc);
+
+	TEST_ASSERT(expected_ucall == actual_ucall,
+		    "Guest exited unexpectedly (expected ucall %" PRIu64
+		    ", got %" PRIu64 ")",
+		    expected_ucall, actual_ucall);
+}
+
+static bool spin_wait_for_next_iteration(int *current_iteration)
+{
+	int last_iteration = *current_iteration;
+
+	do {
+		if (READ_ONCE(memstress_args.stop_vcpus))
+			return false;
+
+		*current_iteration = READ_ONCE(iteration);
+	} while (last_iteration == *current_iteration);
+
+	return true;
+}
+
+static void vcpu_thread_main(struct memstress_vcpu_args *vcpu_args)
+{
+	struct kvm_vcpu *vcpu = vcpu_args->vcpu;
+	struct kvm_vm *vm = memstress_args.vm;
+	int vcpu_idx = vcpu_args->vcpu_idx;
+	int current_iteration = 0;
+
+	while (spin_wait_for_next_iteration(&current_iteration)) {
+		switch (READ_ONCE(iteration_work)) {
+		case ITERATION_ACCESS_MEMORY:
+			vcpu_run(vcpu);
+			assert_ucall(vcpu, UCALL_SYNC);
+			break;
+		case ITERATION_MARK_IDLE:
+			pageidle_mark_vcpu_memory_idle(vm, vcpu_args);
+			break;
+		}
+
+		vcpu_last_completed_iteration[vcpu_idx] = current_iteration;
+	}
+}
+
+static void spin_wait_for_vcpu(int vcpu_idx, int target_iteration)
+{
+	while (READ_ONCE(vcpu_last_completed_iteration[vcpu_idx]) !=
+	       target_iteration) {
+		continue;
+	}
+}
+
+/* The type of memory accesses to perform in the VM. */
+enum access_type {
+	ACCESS_READ,
+	ACCESS_WRITE,
+};
+
+static void run_iteration(struct kvm_vm *vm, int nr_vcpus, const char *description)
+{
+	struct timespec ts_start;
+	struct timespec ts_elapsed;
+	int next_iteration, i;
+
+	/* Kick off the vCPUs by incrementing iteration. */
+	next_iteration = ++iteration;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_start);
+
+	/* Wait for all vCPUs to finish the iteration. */
+	for (i = 0; i < nr_vcpus; i++)
+		spin_wait_for_vcpu(i, next_iteration);
+
+	ts_elapsed = timespec_elapsed(ts_start);
+	pr_info("%-30s: %ld.%09lds\n",
+		description, ts_elapsed.tv_sec, ts_elapsed.tv_nsec);
+}
+
+static void access_memory(struct kvm_vm *vm, int nr_vcpus,
+			  enum access_type access, const char *description)
+{
+	memstress_set_write_percent(vm, (access == ACCESS_READ) ? 0 : 100);
+	iteration_work = ITERATION_ACCESS_MEMORY;
+	run_iteration(vm, nr_vcpus, description);
+}
+
+static void mark_memory_idle(struct kvm_vm *vm, int nr_vcpus)
+{
+	if (use_lru_gen)
+		return lru_gen_mark_memory_idle(vm);
+
+	/*
+	 * Even though this parallelizes the work across vCPUs, this is still a
+	 * very slow operation because page_idle forces the test to mark one pfn
+	 * at a time and the clear_young notifier may serialize on the KVM MMU
+	 * lock.
+	 */
+	pr_debug("Marking VM memory idle (slow)...\n");
+	iteration_work = ITERATION_MARK_IDLE;
+	run_iteration(vm, nr_vcpus, "Mark memory idle (page_idle)");
+}
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct test_params *params = arg;
+	struct kvm_vm *vm;
+	int nr_vcpus = params->nr_vcpus;
+
+	vm = memstress_create_vm(mode, nr_vcpus, params->vcpu_memory_bytes, 1,
+				 params->backing_src, !overlap_memory_access);
+
+	/*
+	 * If guest_page_size is larger than the host's page size, the
+	 * guest (memstress) will only fault in a subset of the host's pages.
+	 */
+	test_pages = params->nr_vcpus * params->vcpu_memory_bytes /
+		      max(memstress_args.guest_page_size,
+			  (uint64_t)getpagesize());
+
+	memstress_start_vcpu_threads(nr_vcpus, vcpu_thread_main);
+
+	pr_info("\n");
+	access_memory(vm, nr_vcpus, ACCESS_WRITE, "Populating memory");
+
+	if (use_lru_gen) {
+		struct memcg_stats stats;
+
+		/*
+		 * Do a page table scan now. Following initial population, aging
+		 * may not cause the pages to move to a newer generation. Do
+		 * an aging pass now so that future aging passes always move
+		 * pages to a newer generation.
+		 */
+		printf("Initial aging pass (lru_gen)\n");
+		lru_gen_do_aging(&stats, TEST_MEMCG_NAME);
+		TEST_ASSERT(lru_gen_sum_memcg_stats(&stats) >= test_pages,
+			    "Not all pages accounted for (looking for %ld). "
+			    "Was the memcg set up correctly?", test_pages);
+		access_memory(vm, nr_vcpus, ACCESS_WRITE, "Re-populating memory");
+		lru_gen_read_memcg_stats(&stats, TEST_MEMCG_NAME);
+		lru_gen_last_gen = find_generation(&stats, test_pages);
+	}
+
+	/* As a control, read and write to the populated memory first. */
+	access_memory(vm, nr_vcpus, ACCESS_WRITE, "Writing to populated memory");
+	access_memory(vm, nr_vcpus, ACCESS_READ, "Reading from populated memory");
+
+	/* Repeat on memory that has been marked as idle. */
+	mark_memory_idle(vm, nr_vcpus);
+	access_memory(vm, nr_vcpus, ACCESS_WRITE, "Writing to idle memory");
+	mark_memory_idle(vm, nr_vcpus);
+	access_memory(vm, nr_vcpus, ACCESS_READ, "Reading from idle memory");
+
+	memstress_join_vcpu_threads(nr_vcpus);
+	memstress_destroy_vm(vm);
+}
+
+static int access_tracking_unreliable(void)
+{
+#ifdef __x86_64__
+	/*
+	 * When running nested, the TLB size may be effectively unlimited (for
+	 * example, this is the case when running on KVM L0), and KVM doesn't
+	 * explicitly flush the TLB when aging SPTEs.  As a result, more pages
+	 * are cached and the guest won't see the "idle" bit cleared.
+	 */
+	if (this_cpu_has(X86_FEATURE_HYPERVISOR)) {
+		puts("Skipping idle page count sanity check, because the test is run nested");
+		return 1;
+	}
+#endif
+	/*
+	 * When NUMA balancing is enabled, guest memory will be unmapped to get
+	 * NUMA faults, dropping the Accessed bits.
+	 */
+	if (is_numa_balancing_enabled()) {
+		puts("Skipping idle page count sanity check, because NUMA balancing is enabled");
+		return 1;
+	}
+	return 0;
+}
+
+static int run_test_for_each_guest_mode(const char *cgroup, void *arg)
+{
+	for_each_guest_mode(run_test, arg);
+	return 0;
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-m mode] [-b vcpu_bytes] [-v vcpus] [-o]  [-s mem_type]\n",
+	       name);
+	puts("");
+	printf(" -h: Display this help message.");
+	guest_modes_help();
+	printf(" -b: specify the size of the memory region which should be\n"
+	       "     dirtied by each vCPU. e.g. 10M or 3G.\n"
+	       "     (default: 1G)\n");
+	printf(" -v: specify the number of vCPUs to run.\n");
+	printf(" -o: Overlap guest memory accesses instead of partitioning\n"
+	       "     them into a separate region of memory for each vCPU.\n");
+	printf(" -w: Control whether the test warns or fails if more than 10%%\n"
+	       "     of pages are still seen as idle/old after accessing guest\n"
+	       "     memory.  >0 == warn only, 0 == fail, <0 == auto.  For auto\n"
+	       "     mode, the test fails by default, but switches to warn only\n"
+	       "     if NUMA balancing is enabled or the test detects it's running\n"
+	       "     in a VM.\n");
+	backing_src_help("-s");
+	puts("");
+	exit(0);
+}
+
+void destroy_cgroup(char *cg)
+{
+	printf("Destroying cgroup: %s\n", cg);
+}
+
+int main(int argc, char *argv[])
+{
+	struct test_params params = {
+		.backing_src = DEFAULT_VM_MEM_SRC,
+		.vcpu_memory_bytes = DEFAULT_PER_VCPU_MEM_SIZE,
+		.nr_vcpus = 1,
+	};
+	char *new_cg = NULL;
+	int page_idle_fd;
+	int opt;
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "hm:b:v:os:w:")) != -1) {
+		switch (opt) {
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'b':
+			params.vcpu_memory_bytes = parse_size(optarg);
+			break;
+		case 'v':
+			params.nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			break;
+		case 'o':
+			overlap_memory_access = true;
+			break;
+		case 's':
+			params.backing_src = parse_backing_src_type(optarg);
+			break;
+		case 'w':
+			idle_pages_warn_only =
+				atoi_non_negative("Idle pages warning",
+						  optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	if (idle_pages_warn_only == -1)
+		idle_pages_warn_only = access_tracking_unreliable();
+
+	if (lru_gen_usable()) {
+		bool cg_created = true;
+		int ret;
+
+		puts("Using lru_gen for aging");
+		use_lru_gen = true;
+
+		if (cg_find_controller_root(cgroup_root, sizeof(cgroup_root), "memory"))
+			ksft_exit_skip("Cannot find memory cgroup controller\n");
+
+		new_cg = cg_name(cgroup_root, TEST_MEMCG_NAME);
+		printf("Creating cgroup: %s\n", new_cg);
+		if (cg_create(new_cg)) {
+			if (errno == EEXIST) {
+				printf("Found existing cgroup");
+				cg_created = false;
+			} else {
+				ksft_exit_skip("could not create new cgroup: %s\n", new_cg);
+			}
+		}
+
+		/*
+		 * This will fork off a new process to run the test within
+		 * a new memcg, so we need to properly propagate the return
+		 * value up.
+		 */
+		ret = cg_run(new_cg, &run_test_for_each_guest_mode, &params);
+		if (cg_created)
+			cg_destroy(new_cg);
+		if (ret < 0)
+			TEST_FAIL("child did not spawn or was abnormally killed");
+		if (ret)
+			return ret;
+	} else {
+		page_idle_fd = __open_path_or_exit("/sys/kernel/mm/page_idle/bitmap", O_RDWR,
+						   "Is CONFIG_IDLE_PAGE_TRACKING enabled?");
+		close(page_idle_fd);
+
+		puts("Using page_idle for aging");
+		run_test_for_each_guest_mode(NULL, &params);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arch_timer.c b/tools/testing/selftests/kvm/arch_timer.c
new file mode 100644
index 000000000000..cf8fb67104f1
--- /dev/null
+++ b/tools/testing/selftests/kvm/arch_timer.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch_timer.c - Tests the arch timer IRQ functionality
+ *
+ * The guest's main thread configures the timer interrupt and waits
+ * for it to fire, with a timeout equal to the timer period.
+ * It asserts that the timeout doesn't exceed the timer period plus
+ * a user configurable error margin(default to 100us)
+ *
+ * On the other hand, upon receipt of an interrupt, the guest's interrupt
+ * handler validates the interrupt by checking if the architectural state
+ * is in compliance with the specifications.
+ *
+ * The test provides command-line options to configure the timer's
+ * period (-p), number of vCPUs (-n), iterations per stage (-i) and timer
+ * interrupt arrival error margin (-e). To stress-test the timer stack
+ * even more, an option to migrate the vCPUs across pCPUs (-m), at a
+ * particular rate, is also provided.
+ *
+ * Copyright (c) 2021, Google LLC.
+ */
+#include <stdlib.h>
+#include <pthread.h>
+#include <linux/sizes.h>
+#include <linux/bitmap.h>
+#include <sys/sysinfo.h>
+
+#include "timer_test.h"
+#include "ucall_common.h"
+
+struct test_args test_args = {
+	.nr_vcpus = NR_VCPUS_DEF,
+	.nr_iter = NR_TEST_ITERS_DEF,
+	.timer_period_ms = TIMER_TEST_PERIOD_MS_DEF,
+	.migration_freq_ms = TIMER_TEST_MIGRATION_FREQ_MS,
+	.timer_err_margin_us = TIMER_TEST_ERR_MARGIN_US,
+	.reserved = 1,
+};
+
+struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+struct test_vcpu_shared_data vcpu_shared_data[KVM_MAX_VCPUS];
+
+static pthread_t pt_vcpu_run[KVM_MAX_VCPUS];
+static unsigned long *vcpu_done_map;
+static pthread_mutex_t vcpu_done_map_lock;
+
+static void *test_vcpu_run(void *arg)
+{
+	unsigned int vcpu_idx = (unsigned long)arg;
+	struct ucall uc;
+	struct kvm_vcpu *vcpu = vcpus[vcpu_idx];
+	struct kvm_vm *vm = vcpu->vm;
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[vcpu_idx];
+
+	vcpu_run(vcpu);
+
+	/* Currently, any exit from guest is an indication of completion */
+	pthread_mutex_lock(&vcpu_done_map_lock);
+	__set_bit(vcpu_idx, vcpu_done_map);
+	pthread_mutex_unlock(&vcpu_done_map_lock);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+	case UCALL_DONE:
+		break;
+	case UCALL_ABORT:
+		sync_global_from_guest(vm, *shared_data);
+		fprintf(stderr, "Guest assert failed,  vcpu %u; stage; %u; iter: %u\n",
+			vcpu_idx, shared_data->guest_stage, shared_data->nr_iter);
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	default:
+		TEST_FAIL("Unexpected guest exit");
+	}
+
+	pr_info("PASS(vCPU-%d).\n", vcpu_idx);
+
+	return NULL;
+}
+
+static uint32_t test_get_pcpu(void)
+{
+	uint32_t pcpu;
+	unsigned int nproc_conf;
+	cpu_set_t online_cpuset;
+
+	nproc_conf = get_nprocs_conf();
+	sched_getaffinity(0, sizeof(cpu_set_t), &online_cpuset);
+
+	/* Randomly find an available pCPU to place a vCPU on */
+	do {
+		pcpu = rand() % nproc_conf;
+	} while (!CPU_ISSET(pcpu, &online_cpuset));
+
+	return pcpu;
+}
+
+static int test_migrate_vcpu(unsigned int vcpu_idx)
+{
+	int ret;
+	uint32_t new_pcpu = test_get_pcpu();
+
+	pr_debug("Migrating vCPU: %u to pCPU: %u\n", vcpu_idx, new_pcpu);
+
+	ret = __pin_task_to_cpu(pt_vcpu_run[vcpu_idx], new_pcpu);
+
+	/* Allow the error where the vCPU thread is already finished */
+	TEST_ASSERT(ret == 0 || ret == ESRCH,
+		    "Failed to migrate the vCPU:%u to pCPU: %u; ret: %d",
+		    vcpu_idx, new_pcpu, ret);
+
+	return ret;
+}
+
+static void *test_vcpu_migration(void *arg)
+{
+	unsigned int i, n_done;
+	bool vcpu_done;
+
+	do {
+		usleep(msecs_to_usecs(test_args.migration_freq_ms));
+
+		for (n_done = 0, i = 0; i < test_args.nr_vcpus; i++) {
+			pthread_mutex_lock(&vcpu_done_map_lock);
+			vcpu_done = test_bit(i, vcpu_done_map);
+			pthread_mutex_unlock(&vcpu_done_map_lock);
+
+			if (vcpu_done) {
+				n_done++;
+				continue;
+			}
+
+			test_migrate_vcpu(i);
+		}
+	} while (test_args.nr_vcpus != n_done);
+
+	return NULL;
+}
+
+static void test_run(struct kvm_vm *vm)
+{
+	pthread_t pt_vcpu_migration;
+	unsigned int i;
+	int ret;
+
+	pthread_mutex_init(&vcpu_done_map_lock, NULL);
+	vcpu_done_map = bitmap_zalloc(test_args.nr_vcpus);
+	TEST_ASSERT(vcpu_done_map, "Failed to allocate vcpu done bitmap");
+
+	for (i = 0; i < (unsigned long)test_args.nr_vcpus; i++) {
+		ret = pthread_create(&pt_vcpu_run[i], NULL, test_vcpu_run,
+				     (void *)(unsigned long)i);
+		TEST_ASSERT(!ret, "Failed to create vCPU-%d pthread", i);
+	}
+
+	/* Spawn a thread to control the vCPU migrations */
+	if (test_args.migration_freq_ms) {
+		srand(time(NULL));
+
+		ret = pthread_create(&pt_vcpu_migration, NULL,
+					test_vcpu_migration, NULL);
+		TEST_ASSERT(!ret, "Failed to create the migration pthread");
+	}
+
+
+	for (i = 0; i < test_args.nr_vcpus; i++)
+		pthread_join(pt_vcpu_run[i], NULL);
+
+	if (test_args.migration_freq_ms)
+		pthread_join(pt_vcpu_migration, NULL);
+
+	bitmap_free(vcpu_done_map);
+}
+
+static void test_print_help(char *name)
+{
+	pr_info("Usage: %s [-h] [-n nr_vcpus] [-i iterations] [-p timer_period_ms]\n"
+		"\t\t    [-m migration_freq_ms] [-o counter_offset]\n"
+		"\t\t    [-e timer_err_margin_us]\n", name);
+	pr_info("\t-n: Number of vCPUs to configure (default: %u; max: %u)\n",
+		NR_VCPUS_DEF, KVM_MAX_VCPUS);
+	pr_info("\t-i: Number of iterations per stage (default: %u)\n",
+		NR_TEST_ITERS_DEF);
+	pr_info("\t-p: Periodicity (in ms) of the guest timer (default: %u)\n",
+		TIMER_TEST_PERIOD_MS_DEF);
+	pr_info("\t-m: Frequency (in ms) of vCPUs to migrate to different pCPU. 0 to turn off (default: %u)\n",
+		TIMER_TEST_MIGRATION_FREQ_MS);
+	pr_info("\t-o: Counter offset (in counter cycles, default: 0) [aarch64-only]\n");
+	pr_info("\t-e: Interrupt arrival error margin (in us) of the guest timer (default: %u)\n",
+		TIMER_TEST_ERR_MARGIN_US);
+	pr_info("\t-h: print this help screen\n");
+}
+
+static bool parse_args(int argc, char *argv[])
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "hn:i:p:m:o:e:")) != -1) {
+		switch (opt) {
+		case 'n':
+			test_args.nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			if (test_args.nr_vcpus > KVM_MAX_VCPUS) {
+				pr_info("Max allowed vCPUs: %u\n",
+					KVM_MAX_VCPUS);
+				goto err;
+			}
+			break;
+		case 'i':
+			test_args.nr_iter = atoi_positive("Number of iterations", optarg);
+			break;
+		case 'p':
+			test_args.timer_period_ms = atoi_positive("Periodicity", optarg);
+			break;
+		case 'm':
+			test_args.migration_freq_ms = atoi_non_negative("Frequency", optarg);
+			break;
+		case 'e':
+			test_args.timer_err_margin_us = atoi_non_negative("Error Margin", optarg);
+			break;
+		case 'o':
+			test_args.counter_offset = strtol(optarg, NULL, 0);
+			test_args.reserved = 0;
+			break;
+		case 'h':
+		default:
+			goto err;
+		}
+	}
+
+	return true;
+
+err:
+	test_print_help(argv[0]);
+	return false;
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+
+	if (!parse_args(argc, argv))
+		exit(KSFT_SKIP);
+
+	__TEST_REQUIRE(!test_args.migration_freq_ms || get_nprocs() >= 2,
+		       "At least two physical CPUs needed for vCPU migration");
+
+	vm = test_vm_create();
+	test_run(vm);
+	test_vm_cleanup(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/aarch32_id_regs.c b/tools/testing/selftests/kvm/arm64/aarch32_id_regs.c
new file mode 100644
index 000000000000..713005b6f508
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/aarch32_id_regs.c
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * aarch32_id_regs - Test for ID register behavior on AArch64-only systems
+ *
+ * Copyright (c) 2022 Google LLC.
+ *
+ * Test that KVM handles the AArch64 views of the AArch32 ID registers as RAZ
+ * and WI from userspace.
+ */
+
+#include <stdint.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+#include <linux/bitfield.h>
+
+#define BAD_ID_REG_VAL	0x1badc0deul
+
+#define GUEST_ASSERT_REG_RAZ(reg)	GUEST_ASSERT_EQ(read_sysreg_s(reg), 0)
+
+static void guest_main(void)
+{
+	GUEST_ASSERT_REG_RAZ(SYS_ID_PFR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_PFR1_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_DFR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_AFR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR1_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR2_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR3_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR1_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR2_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR3_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR4_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR5_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR4_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_ISAR6_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_MVFR0_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_MVFR1_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_MVFR2_EL1);
+	GUEST_ASSERT_REG_RAZ(sys_reg(3, 0, 0, 3, 3));
+	GUEST_ASSERT_REG_RAZ(SYS_ID_PFR2_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_DFR1_EL1);
+	GUEST_ASSERT_REG_RAZ(SYS_ID_MMFR5_EL1);
+	GUEST_ASSERT_REG_RAZ(sys_reg(3, 0, 0, 3, 7));
+
+	GUEST_DONE();
+}
+
+static void test_guest_raz(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+	}
+}
+
+static uint64_t raz_wi_reg_ids[] = {
+	KVM_ARM64_SYS_REG(SYS_ID_PFR0_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_PFR1_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_DFR0_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR0_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR1_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR2_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR3_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR0_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR1_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR2_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR3_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR4_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR5_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR4_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_ISAR6_EL1),
+	KVM_ARM64_SYS_REG(SYS_MVFR0_EL1),
+	KVM_ARM64_SYS_REG(SYS_MVFR1_EL1),
+	KVM_ARM64_SYS_REG(SYS_MVFR2_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_PFR2_EL1),
+	KVM_ARM64_SYS_REG(SYS_ID_MMFR5_EL1),
+};
+
+static void test_user_raz_wi(struct kvm_vcpu *vcpu)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(raz_wi_reg_ids); i++) {
+		uint64_t reg_id = raz_wi_reg_ids[i];
+		uint64_t val;
+
+		val = vcpu_get_reg(vcpu, reg_id);
+		TEST_ASSERT_EQ(val, 0);
+
+		/*
+		 * Expect the ioctl to succeed with no effect on the register
+		 * value.
+		 */
+		vcpu_set_reg(vcpu, reg_id, BAD_ID_REG_VAL);
+
+		val = vcpu_get_reg(vcpu, reg_id);
+		TEST_ASSERT_EQ(val, 0);
+	}
+}
+
+static uint64_t raz_invariant_reg_ids[] = {
+	KVM_ARM64_SYS_REG(SYS_ID_AFR0_EL1),
+	KVM_ARM64_SYS_REG(sys_reg(3, 0, 0, 3, 3)),
+	KVM_ARM64_SYS_REG(SYS_ID_DFR1_EL1),
+	KVM_ARM64_SYS_REG(sys_reg(3, 0, 0, 3, 7)),
+};
+
+static void test_user_raz_invariant(struct kvm_vcpu *vcpu)
+{
+	int i, r;
+
+	for (i = 0; i < ARRAY_SIZE(raz_invariant_reg_ids); i++) {
+		uint64_t reg_id = raz_invariant_reg_ids[i];
+		uint64_t val;
+
+		val = vcpu_get_reg(vcpu, reg_id);
+		TEST_ASSERT_EQ(val, 0);
+
+		r = __vcpu_set_reg(vcpu, reg_id, BAD_ID_REG_VAL);
+		TEST_ASSERT(r < 0 && errno == EINVAL,
+			    "unexpected KVM_SET_ONE_REG error: r=%d, errno=%d", r, errno);
+
+		val = vcpu_get_reg(vcpu, reg_id);
+		TEST_ASSERT_EQ(val, 0);
+	}
+}
+
+
+
+static bool vcpu_aarch64_only(struct kvm_vcpu *vcpu)
+{
+	uint64_t val, el0;
+
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1));
+
+	el0 = FIELD_GET(ID_AA64PFR0_EL1_EL0, val);
+	return el0 == ID_AA64PFR0_EL1_EL0_IMP;
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+
+	TEST_REQUIRE(vcpu_aarch64_only(vcpu));
+
+	test_user_raz_wi(vcpu);
+	test_user_raz_invariant(vcpu);
+	test_guest_raz(vcpu);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/arm64/arch_timer.c b/tools/testing/selftests/kvm/arm64/arch_timer.c
new file mode 100644
index 000000000000..d592a4515399
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/arch_timer.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * The test validates both the virtual and physical timer IRQs using
+ * CVAL and TVAL registers.
+ *
+ * Copyright (c) 2021, Google LLC.
+ */
+#include "arch_timer.h"
+#include "delay.h"
+#include "gic.h"
+#include "processor.h"
+#include "timer_test.h"
+#include "ucall_common.h"
+#include "vgic.h"
+
+enum guest_stage {
+	GUEST_STAGE_VTIMER_CVAL = 1,
+	GUEST_STAGE_VTIMER_TVAL,
+	GUEST_STAGE_PTIMER_CVAL,
+	GUEST_STAGE_PTIMER_TVAL,
+	GUEST_STAGE_MAX,
+};
+
+static int vtimer_irq, ptimer_irq;
+
+static void
+guest_configure_timer_action(struct test_vcpu_shared_data *shared_data)
+{
+	switch (shared_data->guest_stage) {
+	case GUEST_STAGE_VTIMER_CVAL:
+		timer_set_next_cval_ms(VIRTUAL, test_args.timer_period_ms);
+		shared_data->xcnt = timer_get_cntct(VIRTUAL);
+		timer_set_ctl(VIRTUAL, CTL_ENABLE);
+		break;
+	case GUEST_STAGE_VTIMER_TVAL:
+		timer_set_next_tval_ms(VIRTUAL, test_args.timer_period_ms);
+		shared_data->xcnt = timer_get_cntct(VIRTUAL);
+		timer_set_ctl(VIRTUAL, CTL_ENABLE);
+		break;
+	case GUEST_STAGE_PTIMER_CVAL:
+		timer_set_next_cval_ms(PHYSICAL, test_args.timer_period_ms);
+		shared_data->xcnt = timer_get_cntct(PHYSICAL);
+		timer_set_ctl(PHYSICAL, CTL_ENABLE);
+		break;
+	case GUEST_STAGE_PTIMER_TVAL:
+		timer_set_next_tval_ms(PHYSICAL, test_args.timer_period_ms);
+		shared_data->xcnt = timer_get_cntct(PHYSICAL);
+		timer_set_ctl(PHYSICAL, CTL_ENABLE);
+		break;
+	default:
+		GUEST_ASSERT(0);
+	}
+}
+
+static void guest_validate_irq(unsigned int intid,
+				struct test_vcpu_shared_data *shared_data)
+{
+	enum guest_stage stage = shared_data->guest_stage;
+	uint64_t xcnt = 0, xcnt_diff_us, cval = 0;
+	unsigned long xctl = 0;
+	unsigned int timer_irq = 0;
+	unsigned int accessor;
+
+	if (intid == IAR_SPURIOUS)
+		return;
+
+	switch (stage) {
+	case GUEST_STAGE_VTIMER_CVAL:
+	case GUEST_STAGE_VTIMER_TVAL:
+		accessor = VIRTUAL;
+		timer_irq = vtimer_irq;
+		break;
+	case GUEST_STAGE_PTIMER_CVAL:
+	case GUEST_STAGE_PTIMER_TVAL:
+		accessor = PHYSICAL;
+		timer_irq = ptimer_irq;
+		break;
+	default:
+		GUEST_ASSERT(0);
+		return;
+	}
+
+	xctl = timer_get_ctl(accessor);
+	if ((xctl & CTL_IMASK) || !(xctl & CTL_ENABLE))
+		return;
+
+	timer_set_ctl(accessor, CTL_IMASK);
+	xcnt = timer_get_cntct(accessor);
+	cval = timer_get_cval(accessor);
+
+	xcnt_diff_us = cycles_to_usec(xcnt - shared_data->xcnt);
+
+	/* Make sure we are dealing with the correct timer IRQ */
+	GUEST_ASSERT_EQ(intid, timer_irq);
+
+	/* Basic 'timer condition met' check */
+	__GUEST_ASSERT(xcnt >= cval,
+		       "xcnt = 0x%lx, cval = 0x%lx, xcnt_diff_us = 0x%lx",
+		       xcnt, cval, xcnt_diff_us);
+	__GUEST_ASSERT(xctl & CTL_ISTATUS, "xctl = 0x%lx", xctl);
+
+	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
+}
+
+static void guest_irq_handler(struct ex_regs *regs)
+{
+	unsigned int intid = gic_get_and_ack_irq();
+	uint32_t cpu = guest_get_vcpuid();
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	guest_validate_irq(intid, shared_data);
+
+	gic_set_eoi(intid);
+}
+
+static void guest_run_stage(struct test_vcpu_shared_data *shared_data,
+				enum guest_stage stage)
+{
+	uint32_t irq_iter, config_iter;
+
+	shared_data->guest_stage = stage;
+	shared_data->nr_iter = 0;
+
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		/* Setup the next interrupt */
+		guest_configure_timer_action(shared_data);
+
+		/* Setup a timeout for the interrupt to arrive */
+		udelay(msecs_to_usecs(test_args.timer_period_ms) +
+			test_args.timer_err_margin_us);
+
+		irq_iter = READ_ONCE(shared_data->nr_iter);
+		__GUEST_ASSERT(config_iter + 1 == irq_iter,
+				"config_iter + 1 = 0x%x, irq_iter = 0x%x.\n"
+				"  Guest timer interrupt was not triggered within the specified\n"
+				"  interval, try to increase the error margin by [-e] option.\n",
+				config_iter + 1, irq_iter);
+	}
+}
+
+static void guest_code(void)
+{
+	uint32_t cpu = guest_get_vcpuid();
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	local_irq_disable();
+
+	gic_init(GIC_V3, test_args.nr_vcpus);
+
+	timer_set_ctl(VIRTUAL, CTL_IMASK);
+	timer_set_ctl(PHYSICAL, CTL_IMASK);
+
+	gic_irq_enable(vtimer_irq);
+	gic_irq_enable(ptimer_irq);
+	local_irq_enable();
+
+	guest_run_stage(shared_data, GUEST_STAGE_VTIMER_CVAL);
+	guest_run_stage(shared_data, GUEST_STAGE_VTIMER_TVAL);
+	guest_run_stage(shared_data, GUEST_STAGE_PTIMER_CVAL);
+	guest_run_stage(shared_data, GUEST_STAGE_PTIMER_TVAL);
+
+	GUEST_DONE();
+}
+
+static void test_init_timer_irq(struct kvm_vm *vm)
+{
+	/* Timer initid should be same for all the vCPUs, so query only vCPU-0 */
+	ptimer_irq = vcpu_get_ptimer_irq(vcpus[0]);
+	vtimer_irq = vcpu_get_vtimer_irq(vcpus[0]);
+
+	sync_global_to_guest(vm, ptimer_irq);
+	sync_global_to_guest(vm, vtimer_irq);
+
+	pr_debug("ptimer_irq: %d; vtimer_irq: %d\n", ptimer_irq, vtimer_irq);
+}
+
+struct kvm_vm *test_vm_create(void)
+{
+	struct kvm_vm *vm;
+	unsigned int i;
+	int nr_vcpus = test_args.nr_vcpus;
+
+	TEST_REQUIRE(kvm_supports_vgic_v3());
+
+	vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
+
+	vm_init_descriptor_tables(vm);
+	vm_install_exception_handler(vm, VECTOR_IRQ_CURRENT, guest_irq_handler);
+
+	if (!test_args.reserved) {
+		if (kvm_has_cap(KVM_CAP_COUNTER_OFFSET)) {
+			struct kvm_arm_counter_offset offset = {
+				.counter_offset = test_args.counter_offset,
+				.reserved = 0,
+			};
+			vm_ioctl(vm, KVM_ARM_SET_COUNTER_OFFSET, &offset);
+		} else
+			TEST_FAIL("no support for global offset");
+	}
+
+	for (i = 0; i < nr_vcpus; i++)
+		vcpu_init_descriptor_tables(vcpus[i]);
+
+	test_init_timer_irq(vm);
+
+	/* Make all the test's cmdline args visible to the guest */
+	sync_global_to_guest(vm, test_args);
+
+	return vm;
+}
+
+void test_vm_cleanup(struct kvm_vm *vm)
+{
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/arm64/arch_timer_edge_cases.c b/tools/testing/selftests/kvm/arm64/arch_timer_edge_cases.c
new file mode 100644
index 000000000000..993c9e38e729
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/arch_timer_edge_cases.c
@@ -0,0 +1,1059 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch_timer_edge_cases.c - Tests the aarch64 timer IRQ functionality.
+ *
+ * The test validates some edge cases related to the arch-timer:
+ * - timers above the max TVAL value.
+ * - timers in the past
+ * - moving counters ahead and behind pending timers.
+ * - reprograming timers.
+ * - timers fired multiple times.
+ * - masking/unmasking using the timer control mask.
+ *
+ * Copyright (c) 2021, Google LLC.
+ */
+
+#define _GNU_SOURCE
+
+#include <pthread.h>
+#include <sys/sysinfo.h>
+
+#include "arch_timer.h"
+#include "gic.h"
+#include "vgic.h"
+
+/* Depends on counter width. */
+static uint64_t CVAL_MAX;
+/* tval is a signed 32-bit int. */
+static const int32_t TVAL_MAX = INT32_MAX;
+static const int32_t TVAL_MIN = INT32_MIN;
+
+/* After how much time we say there is no IRQ. */
+static const uint32_t TIMEOUT_NO_IRQ_US = 50000;
+
+/* Counter value to use as the starting one for most tests. Set to CVAL_MAX/2 */
+static uint64_t DEF_CNT;
+
+/* Number of runs. */
+static const uint32_t NR_TEST_ITERS_DEF = 5;
+
+/* Default wait test time in ms. */
+static const uint32_t WAIT_TEST_MS = 10;
+
+/* Default "long" wait test time in ms. */
+static const uint32_t LONG_WAIT_TEST_MS = 100;
+
+/* Shared with IRQ handler. */
+struct test_vcpu_shared_data {
+	atomic_t handled;
+	atomic_t spurious;
+} shared_data;
+
+struct test_args {
+	/* Virtual or physical timer and counter tests. */
+	enum arch_timer timer;
+	/* Delay used for most timer tests. */
+	uint64_t wait_ms;
+	/* Delay used in the test_long_timer_delays test. */
+	uint64_t long_wait_ms;
+	/* Number of iterations. */
+	int iterations;
+	/* Whether to test the physical timer. */
+	bool test_physical;
+	/* Whether to test the virtual timer. */
+	bool test_virtual;
+};
+
+struct test_args test_args = {
+	.wait_ms = WAIT_TEST_MS,
+	.long_wait_ms = LONG_WAIT_TEST_MS,
+	.iterations = NR_TEST_ITERS_DEF,
+	.test_physical = true,
+	.test_virtual = true,
+};
+
+static int vtimer_irq, ptimer_irq;
+
+enum sync_cmd {
+	SET_COUNTER_VALUE,
+	USERSPACE_USLEEP,
+	USERSPACE_SCHED_YIELD,
+	USERSPACE_MIGRATE_SELF,
+	NO_USERSPACE_CMD,
+};
+
+typedef void (*sleep_method_t)(enum arch_timer timer, uint64_t usec);
+
+static void sleep_poll(enum arch_timer timer, uint64_t usec);
+static void sleep_sched_poll(enum arch_timer timer, uint64_t usec);
+static void sleep_in_userspace(enum arch_timer timer, uint64_t usec);
+static void sleep_migrate(enum arch_timer timer, uint64_t usec);
+
+sleep_method_t sleep_method[] = {
+	sleep_poll,
+	sleep_sched_poll,
+	sleep_migrate,
+	sleep_in_userspace,
+};
+
+typedef void (*irq_wait_method_t)(void);
+
+static void wait_for_non_spurious_irq(void);
+static void wait_poll_for_irq(void);
+static void wait_sched_poll_for_irq(void);
+static void wait_migrate_poll_for_irq(void);
+
+irq_wait_method_t irq_wait_method[] = {
+	wait_for_non_spurious_irq,
+	wait_poll_for_irq,
+	wait_sched_poll_for_irq,
+	wait_migrate_poll_for_irq,
+};
+
+enum timer_view {
+	TIMER_CVAL,
+	TIMER_TVAL,
+};
+
+static void assert_irqs_handled(uint32_t n)
+{
+	int h = atomic_read(&shared_data.handled);
+
+	__GUEST_ASSERT(h == n, "Handled %d IRQS but expected %d", h, n);
+}
+
+static void userspace_cmd(uint64_t cmd)
+{
+	GUEST_SYNC_ARGS(cmd, 0, 0, 0, 0);
+}
+
+static void userspace_migrate_vcpu(void)
+{
+	userspace_cmd(USERSPACE_MIGRATE_SELF);
+}
+
+static void userspace_sleep(uint64_t usecs)
+{
+	GUEST_SYNC_ARGS(USERSPACE_USLEEP, usecs, 0, 0, 0);
+}
+
+static void set_counter(enum arch_timer timer, uint64_t counter)
+{
+	GUEST_SYNC_ARGS(SET_COUNTER_VALUE, counter, timer, 0, 0);
+}
+
+static void guest_irq_handler(struct ex_regs *regs)
+{
+	unsigned int intid = gic_get_and_ack_irq();
+	enum arch_timer timer;
+	uint64_t cnt, cval;
+	uint32_t ctl;
+	bool timer_condition, istatus;
+
+	if (intid == IAR_SPURIOUS) {
+		atomic_inc(&shared_data.spurious);
+		goto out;
+	}
+
+	if (intid == ptimer_irq)
+		timer = PHYSICAL;
+	else if (intid == vtimer_irq)
+		timer = VIRTUAL;
+	else
+		goto out;
+
+	ctl = timer_get_ctl(timer);
+	cval = timer_get_cval(timer);
+	cnt = timer_get_cntct(timer);
+	timer_condition = cnt >= cval;
+	istatus = (ctl & CTL_ISTATUS) && (ctl & CTL_ENABLE);
+	GUEST_ASSERT_EQ(timer_condition, istatus);
+
+	/* Disable and mask the timer. */
+	timer_set_ctl(timer, CTL_IMASK);
+
+	atomic_inc(&shared_data.handled);
+
+out:
+	gic_set_eoi(intid);
+}
+
+static void set_cval_irq(enum arch_timer timer, uint64_t cval_cycles,
+			 uint32_t ctl)
+{
+	atomic_set(&shared_data.handled, 0);
+	atomic_set(&shared_data.spurious, 0);
+	timer_set_cval(timer, cval_cycles);
+	timer_set_ctl(timer, ctl);
+}
+
+static void set_tval_irq(enum arch_timer timer, uint64_t tval_cycles,
+			 uint32_t ctl)
+{
+	atomic_set(&shared_data.handled, 0);
+	atomic_set(&shared_data.spurious, 0);
+	timer_set_tval(timer, tval_cycles);
+	timer_set_ctl(timer, ctl);
+}
+
+static void set_xval_irq(enum arch_timer timer, uint64_t xval, uint32_t ctl,
+			 enum timer_view tv)
+{
+	switch (tv) {
+	case TIMER_CVAL:
+		set_cval_irq(timer, xval, ctl);
+		break;
+	case TIMER_TVAL:
+		set_tval_irq(timer, xval, ctl);
+		break;
+	default:
+		GUEST_FAIL("Could not get timer %d", timer);
+	}
+}
+
+/*
+ * Note that this can theoretically hang forever, so we rely on having
+ * a timeout mechanism in the "runner", like:
+ * tools/testing/selftests/kselftest/runner.sh.
+ */
+static void wait_for_non_spurious_irq(void)
+{
+	int h;
+
+	local_irq_disable();
+
+	for (h = atomic_read(&shared_data.handled); h == atomic_read(&shared_data.handled);) {
+		wfi();
+		local_irq_enable();
+		isb(); /* handle IRQ */
+		local_irq_disable();
+	}
+}
+
+/*
+ * Wait for an non-spurious IRQ by polling in the guest or in
+ * userspace (e.g. userspace_cmd=USERSPACE_SCHED_YIELD).
+ *
+ * Note that this can theoretically hang forever, so we rely on having
+ * a timeout mechanism in the "runner", like:
+ * tools/testing/selftests/kselftest/runner.sh.
+ */
+static void poll_for_non_spurious_irq(enum sync_cmd usp_cmd)
+{
+	int h;
+
+	local_irq_disable();
+
+	h = atomic_read(&shared_data.handled);
+
+	local_irq_enable();
+	while (h == atomic_read(&shared_data.handled)) {
+		if (usp_cmd == NO_USERSPACE_CMD)
+			cpu_relax();
+		else
+			userspace_cmd(usp_cmd);
+	}
+	local_irq_disable();
+}
+
+static void wait_poll_for_irq(void)
+{
+	poll_for_non_spurious_irq(NO_USERSPACE_CMD);
+}
+
+static void wait_sched_poll_for_irq(void)
+{
+	poll_for_non_spurious_irq(USERSPACE_SCHED_YIELD);
+}
+
+static void wait_migrate_poll_for_irq(void)
+{
+	poll_for_non_spurious_irq(USERSPACE_MIGRATE_SELF);
+}
+
+/*
+ * Sleep for usec microseconds by polling in the guest or in
+ * userspace (e.g. userspace_cmd=USERSPACE_SCHEDULE).
+ */
+static void guest_poll(enum arch_timer test_timer, uint64_t usec,
+		       enum sync_cmd usp_cmd)
+{
+	uint64_t cycles = usec_to_cycles(usec);
+	/* Whichever timer we are testing with, sleep with the other. */
+	enum arch_timer sleep_timer = 1 - test_timer;
+	uint64_t start = timer_get_cntct(sleep_timer);
+
+	while ((timer_get_cntct(sleep_timer) - start) < cycles) {
+		if (usp_cmd == NO_USERSPACE_CMD)
+			cpu_relax();
+		else
+			userspace_cmd(usp_cmd);
+	}
+}
+
+static void sleep_poll(enum arch_timer timer, uint64_t usec)
+{
+	guest_poll(timer, usec, NO_USERSPACE_CMD);
+}
+
+static void sleep_sched_poll(enum arch_timer timer, uint64_t usec)
+{
+	guest_poll(timer, usec, USERSPACE_SCHED_YIELD);
+}
+
+static void sleep_migrate(enum arch_timer timer, uint64_t usec)
+{
+	guest_poll(timer, usec, USERSPACE_MIGRATE_SELF);
+}
+
+static void sleep_in_userspace(enum arch_timer timer, uint64_t usec)
+{
+	userspace_sleep(usec);
+}
+
+/*
+ * Reset the timer state to some nice values like the counter not being close
+ * to the edge, and the control register masked and disabled.
+ */
+static void reset_timer_state(enum arch_timer timer, uint64_t cnt)
+{
+	set_counter(timer, cnt);
+	timer_set_ctl(timer, CTL_IMASK);
+}
+
+static void test_timer_xval(enum arch_timer timer, uint64_t xval,
+			    enum timer_view tv, irq_wait_method_t wm, bool reset_state,
+			    uint64_t reset_cnt)
+{
+	local_irq_disable();
+
+	if (reset_state)
+		reset_timer_state(timer, reset_cnt);
+
+	set_xval_irq(timer, xval, CTL_ENABLE, tv);
+
+	/* This method re-enables IRQs to handle the one we're looking for. */
+	wm();
+
+	assert_irqs_handled(1);
+	local_irq_enable();
+}
+
+/*
+ * The test_timer_* functions will program the timer, wait for it, and assert
+ * the firing of the correct IRQ.
+ *
+ * These functions don't have a timeout and return as soon as they receive an
+ * IRQ. They can hang (forever), so we rely on having a timeout mechanism in
+ * the "runner", like: tools/testing/selftests/kselftest/runner.sh.
+ */
+
+static void test_timer_cval(enum arch_timer timer, uint64_t cval,
+			    irq_wait_method_t wm, bool reset_state,
+			    uint64_t reset_cnt)
+{
+	test_timer_xval(timer, cval, TIMER_CVAL, wm, reset_state, reset_cnt);
+}
+
+static void test_timer_tval(enum arch_timer timer, int32_t tval,
+			    irq_wait_method_t wm, bool reset_state,
+			    uint64_t reset_cnt)
+{
+	test_timer_xval(timer, (uint64_t) tval, TIMER_TVAL, wm, reset_state,
+			reset_cnt);
+}
+
+static void test_xval_check_no_irq(enum arch_timer timer, uint64_t xval,
+				   uint64_t usec, enum timer_view timer_view,
+				   sleep_method_t guest_sleep)
+{
+	local_irq_disable();
+
+	set_xval_irq(timer, xval, CTL_ENABLE | CTL_IMASK, timer_view);
+	guest_sleep(timer, usec);
+
+	local_irq_enable();
+	isb();
+
+	/* Assume success (no IRQ) after waiting usec microseconds */
+	assert_irqs_handled(0);
+}
+
+static void test_cval_no_irq(enum arch_timer timer, uint64_t cval,
+			     uint64_t usec, sleep_method_t wm)
+{
+	test_xval_check_no_irq(timer, cval, usec, TIMER_CVAL, wm);
+}
+
+static void test_tval_no_irq(enum arch_timer timer, int32_t tval, uint64_t usec,
+			     sleep_method_t wm)
+{
+	/* tval will be cast to an int32_t in test_xval_check_no_irq */
+	test_xval_check_no_irq(timer, (uint64_t) tval, usec, TIMER_TVAL, wm);
+}
+
+/* Test masking/unmasking a timer using the timer mask (not the IRQ mask). */
+static void test_timer_control_mask_then_unmask(enum arch_timer timer)
+{
+	reset_timer_state(timer, DEF_CNT);
+	set_tval_irq(timer, -1, CTL_ENABLE | CTL_IMASK);
+
+	/* Unmask the timer, and then get an IRQ. */
+	local_irq_disable();
+	timer_set_ctl(timer, CTL_ENABLE);
+	/* This method re-enables IRQs to handle the one we're looking for. */
+	wait_for_non_spurious_irq();
+
+	assert_irqs_handled(1);
+	local_irq_enable();
+}
+
+/* Check that timer control masks actually mask a timer being fired. */
+static void test_timer_control_masks(enum arch_timer timer)
+{
+	reset_timer_state(timer, DEF_CNT);
+
+	/* Local IRQs are not masked at this point. */
+
+	set_tval_irq(timer, -1, CTL_ENABLE | CTL_IMASK);
+
+	/* Assume no IRQ after waiting TIMEOUT_NO_IRQ_US microseconds */
+	sleep_poll(timer, TIMEOUT_NO_IRQ_US);
+
+	assert_irqs_handled(0);
+	timer_set_ctl(timer, CTL_IMASK);
+}
+
+static void test_fire_a_timer_multiple_times(enum arch_timer timer,
+					     irq_wait_method_t wm, int num)
+{
+	int i;
+
+	local_irq_disable();
+	reset_timer_state(timer, DEF_CNT);
+
+	set_tval_irq(timer, 0, CTL_ENABLE);
+
+	for (i = 1; i <= num; i++) {
+		/* This method re-enables IRQs to handle the one we're looking for. */
+		wm();
+
+		/* The IRQ handler masked and disabled the timer.
+		 * Enable and unmmask it again.
+		 */
+		timer_set_ctl(timer, CTL_ENABLE);
+
+		assert_irqs_handled(i);
+	}
+
+	local_irq_enable();
+}
+
+static void test_timers_fired_multiple_times(enum arch_timer timer)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++)
+		test_fire_a_timer_multiple_times(timer, irq_wait_method[i], 10);
+}
+
+/*
+ * Set a timer for tval=delta_1_ms then reprogram it to
+ * tval=delta_2_ms. Check that we get the timer fired. There is no
+ * timeout for the wait: we use the wfi instruction.
+ */
+static void test_reprogramming_timer(enum arch_timer timer, irq_wait_method_t wm,
+				     int32_t delta_1_ms, int32_t delta_2_ms)
+{
+	local_irq_disable();
+	reset_timer_state(timer, DEF_CNT);
+
+	/* Program the timer to DEF_CNT + delta_1_ms. */
+	set_tval_irq(timer, msec_to_cycles(delta_1_ms), CTL_ENABLE);
+
+	/* Reprogram the timer to DEF_CNT + delta_2_ms. */
+	timer_set_tval(timer, msec_to_cycles(delta_2_ms));
+
+	/* This method re-enables IRQs to handle the one we're looking for. */
+	wm();
+
+	/* The IRQ should arrive at DEF_CNT + delta_2_ms (or after). */
+	GUEST_ASSERT(timer_get_cntct(timer) >=
+		     DEF_CNT + msec_to_cycles(delta_2_ms));
+
+	local_irq_enable();
+	assert_irqs_handled(1);
+};
+
+static void test_reprogram_timers(enum arch_timer timer)
+{
+	int i;
+	uint64_t base_wait = test_args.wait_ms;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		/*
+		 * Ensure reprogramming works whether going from a
+		 * longer time to a shorter or vice versa.
+		 */
+		test_reprogramming_timer(timer, irq_wait_method[i], 2 * base_wait,
+					 base_wait);
+		test_reprogramming_timer(timer, irq_wait_method[i], base_wait,
+					 2 * base_wait);
+	}
+}
+
+static void test_basic_functionality(enum arch_timer timer)
+{
+	int32_t tval = (int32_t) msec_to_cycles(test_args.wait_ms);
+	uint64_t cval = DEF_CNT + msec_to_cycles(test_args.wait_ms);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		irq_wait_method_t wm = irq_wait_method[i];
+
+		test_timer_cval(timer, cval, wm, true, DEF_CNT);
+		test_timer_tval(timer, tval, wm, true, DEF_CNT);
+	}
+}
+
+/*
+ * This test checks basic timer behavior without actually firing timers, things
+ * like: the relationship between cval and tval, tval down-counting.
+ */
+static void timers_sanity_checks(enum arch_timer timer, bool use_sched)
+{
+	reset_timer_state(timer, DEF_CNT);
+
+	local_irq_disable();
+
+	/* cval in the past */
+	timer_set_cval(timer,
+		       timer_get_cntct(timer) -
+		       msec_to_cycles(test_args.wait_ms));
+	if (use_sched)
+		userspace_migrate_vcpu();
+	GUEST_ASSERT(timer_get_tval(timer) < 0);
+
+	/* tval in the past */
+	timer_set_tval(timer, -1);
+	if (use_sched)
+		userspace_migrate_vcpu();
+	GUEST_ASSERT(timer_get_cval(timer) < timer_get_cntct(timer));
+
+	/* tval larger than TVAL_MAX. This requires programming with
+	 * timer_set_cval instead so the value is expressible
+	 */
+	timer_set_cval(timer,
+		       timer_get_cntct(timer) + TVAL_MAX +
+		       msec_to_cycles(test_args.wait_ms));
+	if (use_sched)
+		userspace_migrate_vcpu();
+	GUEST_ASSERT(timer_get_tval(timer) <= 0);
+
+	/*
+	 * tval larger than 2 * TVAL_MAX.
+	 * Twice the TVAL_MAX completely loops around the TVAL.
+	 */
+	timer_set_cval(timer,
+		       timer_get_cntct(timer) + 2ULL * TVAL_MAX +
+		       msec_to_cycles(test_args.wait_ms));
+	if (use_sched)
+		userspace_migrate_vcpu();
+	GUEST_ASSERT(timer_get_tval(timer) <=
+		       msec_to_cycles(test_args.wait_ms));
+
+	/* negative tval that rollovers from 0. */
+	set_counter(timer, msec_to_cycles(1));
+	timer_set_tval(timer, -1 * msec_to_cycles(test_args.wait_ms));
+	if (use_sched)
+		userspace_migrate_vcpu();
+	GUEST_ASSERT(timer_get_cval(timer) >= (CVAL_MAX - msec_to_cycles(test_args.wait_ms)));
+
+	/* tval should keep down-counting from 0 to -1. */
+	timer_set_tval(timer, 0);
+	sleep_poll(timer, 1);
+	GUEST_ASSERT(timer_get_tval(timer) < 0);
+
+	local_irq_enable();
+
+	/* Mask and disable any pending timer. */
+	timer_set_ctl(timer, CTL_IMASK);
+}
+
+static void test_timers_sanity_checks(enum arch_timer timer)
+{
+	timers_sanity_checks(timer, false);
+	/* Check how KVM saves/restores these edge-case values. */
+	timers_sanity_checks(timer, true);
+}
+
+static void test_set_cnt_after_tval_max(enum arch_timer timer, irq_wait_method_t wm)
+{
+	local_irq_disable();
+	reset_timer_state(timer, DEF_CNT);
+
+	set_cval_irq(timer,
+		     (uint64_t) TVAL_MAX +
+		     msec_to_cycles(test_args.wait_ms) / 2, CTL_ENABLE);
+
+	set_counter(timer, TVAL_MAX);
+
+	/* This method re-enables IRQs to handle the one we're looking for. */
+	wm();
+
+	assert_irqs_handled(1);
+	local_irq_enable();
+}
+
+/* Test timers set for: cval = now + TVAL_MAX + wait_ms / 2 */
+static void test_timers_above_tval_max(enum arch_timer timer)
+{
+	uint64_t cval;
+	int i;
+
+	/*
+	 * Test that the system is not implementing cval in terms of
+	 * tval.  If that was the case, setting a cval to "cval = now
+	 * + TVAL_MAX + wait_ms" would wrap to "cval = now +
+	 * wait_ms", and the timer would fire immediately. Test that it
+	 * doesn't.
+	 */
+	for (i = 0; i < ARRAY_SIZE(sleep_method); i++) {
+		reset_timer_state(timer, DEF_CNT);
+		cval = timer_get_cntct(timer) + TVAL_MAX +
+			msec_to_cycles(test_args.wait_ms);
+		test_cval_no_irq(timer, cval,
+				 msecs_to_usecs(test_args.wait_ms) +
+				 TIMEOUT_NO_IRQ_US, sleep_method[i]);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		/* Get the IRQ by moving the counter forward. */
+		test_set_cnt_after_tval_max(timer, irq_wait_method[i]);
+	}
+}
+
+/*
+ * Template function to be used by the test_move_counter_ahead_* tests.  It
+ * sets the counter to cnt_1, the [c|t]val, the counter to cnt_2, and
+ * then waits for an IRQ.
+ */
+static void test_set_cnt_after_xval(enum arch_timer timer, uint64_t cnt_1,
+				    uint64_t xval, uint64_t cnt_2,
+				    irq_wait_method_t wm, enum timer_view tv)
+{
+	local_irq_disable();
+
+	set_counter(timer, cnt_1);
+	timer_set_ctl(timer, CTL_IMASK);
+
+	set_xval_irq(timer, xval, CTL_ENABLE, tv);
+	set_counter(timer, cnt_2);
+	/* This method re-enables IRQs to handle the one we're looking for. */
+	wm();
+
+	assert_irqs_handled(1);
+	local_irq_enable();
+}
+
+/*
+ * Template function to be used by the test_move_counter_ahead_* tests.  It
+ * sets the counter to cnt_1, the [c|t]val, the counter to cnt_2, and
+ * then waits for an IRQ.
+ */
+static void test_set_cnt_after_xval_no_irq(enum arch_timer timer,
+					   uint64_t cnt_1, uint64_t xval,
+					   uint64_t cnt_2,
+					   sleep_method_t guest_sleep,
+					   enum timer_view tv)
+{
+	local_irq_disable();
+
+	set_counter(timer, cnt_1);
+	timer_set_ctl(timer, CTL_IMASK);
+
+	set_xval_irq(timer, xval, CTL_ENABLE, tv);
+	set_counter(timer, cnt_2);
+	guest_sleep(timer, TIMEOUT_NO_IRQ_US);
+
+	local_irq_enable();
+	isb();
+
+	/* Assume no IRQ after waiting TIMEOUT_NO_IRQ_US microseconds */
+	assert_irqs_handled(0);
+	timer_set_ctl(timer, CTL_IMASK);
+}
+
+static void test_set_cnt_after_tval(enum arch_timer timer, uint64_t cnt_1,
+				    int32_t tval, uint64_t cnt_2,
+				    irq_wait_method_t wm)
+{
+	test_set_cnt_after_xval(timer, cnt_1, tval, cnt_2, wm, TIMER_TVAL);
+}
+
+static void test_set_cnt_after_cval(enum arch_timer timer, uint64_t cnt_1,
+				    uint64_t cval, uint64_t cnt_2,
+				    irq_wait_method_t wm)
+{
+	test_set_cnt_after_xval(timer, cnt_1, cval, cnt_2, wm, TIMER_CVAL);
+}
+
+static void test_set_cnt_after_tval_no_irq(enum arch_timer timer,
+					   uint64_t cnt_1, int32_t tval,
+					   uint64_t cnt_2, sleep_method_t wm)
+{
+	test_set_cnt_after_xval_no_irq(timer, cnt_1, tval, cnt_2, wm,
+				       TIMER_TVAL);
+}
+
+static void test_set_cnt_after_cval_no_irq(enum arch_timer timer,
+					   uint64_t cnt_1, uint64_t cval,
+					   uint64_t cnt_2, sleep_method_t wm)
+{
+	test_set_cnt_after_xval_no_irq(timer, cnt_1, cval, cnt_2, wm,
+				       TIMER_CVAL);
+}
+
+/* Set a timer and then move the counter ahead of it. */
+static void test_move_counters_ahead_of_timers(enum arch_timer timer)
+{
+	int i;
+	int32_t tval;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		irq_wait_method_t wm = irq_wait_method[i];
+
+		test_set_cnt_after_cval(timer, 0, DEF_CNT, DEF_CNT + 1, wm);
+		test_set_cnt_after_cval(timer, CVAL_MAX, 1, 2, wm);
+
+		/* Move counter ahead of negative tval. */
+		test_set_cnt_after_tval(timer, 0, -1, DEF_CNT + 1, wm);
+		test_set_cnt_after_tval(timer, 0, -1, TVAL_MAX, wm);
+		tval = TVAL_MAX;
+		test_set_cnt_after_tval(timer, 0, tval, (uint64_t) tval + 1,
+					wm);
+	}
+}
+
+/*
+ * Program a timer, mask it, and then change the tval or counter to cancel it.
+ * Unmask it and check that nothing fires.
+ */
+static void test_move_counters_behind_timers(enum arch_timer timer)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(sleep_method); i++) {
+		sleep_method_t sm = sleep_method[i];
+
+		test_set_cnt_after_cval_no_irq(timer, DEF_CNT, DEF_CNT - 1, 0,
+					       sm);
+		test_set_cnt_after_tval_no_irq(timer, DEF_CNT, -1, 0, sm);
+	}
+}
+
+static void test_timers_in_the_past(enum arch_timer timer)
+{
+	int32_t tval = -1 * (int32_t) msec_to_cycles(test_args.wait_ms);
+	uint64_t cval;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		irq_wait_method_t wm = irq_wait_method[i];
+
+		/* set a timer wait_ms the past. */
+		cval = DEF_CNT - msec_to_cycles(test_args.wait_ms);
+		test_timer_cval(timer, cval, wm, true, DEF_CNT);
+		test_timer_tval(timer, tval, wm, true, DEF_CNT);
+
+		/* Set a timer to counter=0 (in the past) */
+		test_timer_cval(timer, 0, wm, true, DEF_CNT);
+
+		/* Set a time for tval=0 (now) */
+		test_timer_tval(timer, 0, wm, true, DEF_CNT);
+
+		/* Set a timer to as far in the past as possible */
+		test_timer_tval(timer, TVAL_MIN, wm, true, DEF_CNT);
+	}
+
+	/*
+	 * Set the counter to wait_ms, and a tval to -wait_ms. There should be no
+	 * IRQ as that tval means cval=CVAL_MAX-wait_ms.
+	 */
+	for (i = 0; i < ARRAY_SIZE(sleep_method); i++) {
+		sleep_method_t sm = sleep_method[i];
+
+		set_counter(timer, msec_to_cycles(test_args.wait_ms));
+		test_tval_no_irq(timer, tval, TIMEOUT_NO_IRQ_US, sm);
+	}
+}
+
+static void test_long_timer_delays(enum arch_timer timer)
+{
+	int32_t tval = (int32_t) msec_to_cycles(test_args.long_wait_ms);
+	uint64_t cval = DEF_CNT + msec_to_cycles(test_args.long_wait_ms);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(irq_wait_method); i++) {
+		irq_wait_method_t wm = irq_wait_method[i];
+
+		test_timer_cval(timer, cval, wm, true, DEF_CNT);
+		test_timer_tval(timer, tval, wm, true, DEF_CNT);
+	}
+}
+
+static void guest_run_iteration(enum arch_timer timer)
+{
+	test_basic_functionality(timer);
+	test_timers_sanity_checks(timer);
+
+	test_timers_above_tval_max(timer);
+	test_timers_in_the_past(timer);
+
+	test_move_counters_ahead_of_timers(timer);
+	test_move_counters_behind_timers(timer);
+	test_reprogram_timers(timer);
+
+	test_timers_fired_multiple_times(timer);
+
+	test_timer_control_mask_then_unmask(timer);
+	test_timer_control_masks(timer);
+}
+
+static void guest_code(enum arch_timer timer)
+{
+	int i;
+
+	local_irq_disable();
+
+	gic_init(GIC_V3, 1);
+
+	timer_set_ctl(VIRTUAL, CTL_IMASK);
+	timer_set_ctl(PHYSICAL, CTL_IMASK);
+
+	gic_irq_enable(vtimer_irq);
+	gic_irq_enable(ptimer_irq);
+	local_irq_enable();
+
+	for (i = 0; i < test_args.iterations; i++) {
+		GUEST_SYNC(i);
+		guest_run_iteration(timer);
+	}
+
+	test_long_timer_delays(timer);
+	GUEST_DONE();
+}
+
+static cpu_set_t default_cpuset;
+
+static uint32_t next_pcpu(void)
+{
+	uint32_t max = get_nprocs();
+	uint32_t cur = sched_getcpu();
+	uint32_t next = cur;
+	cpu_set_t cpuset = default_cpuset;
+
+	TEST_ASSERT(max > 1, "Need at least two physical cpus");
+
+	do {
+		next = (next + 1) % CPU_SETSIZE;
+	} while (!CPU_ISSET(next, &cpuset));
+
+	return next;
+}
+
+static void kvm_set_cntxct(struct kvm_vcpu *vcpu, uint64_t cnt,
+			   enum arch_timer timer)
+{
+	if (timer == PHYSICAL)
+		vcpu_set_reg(vcpu, KVM_REG_ARM_PTIMER_CNT, cnt);
+	else
+		vcpu_set_reg(vcpu, KVM_REG_ARM_TIMER_CNT, cnt);
+}
+
+static void handle_sync(struct kvm_vcpu *vcpu, struct ucall *uc)
+{
+	enum sync_cmd cmd = uc->args[1];
+	uint64_t val = uc->args[2];
+	enum arch_timer timer = uc->args[3];
+
+	switch (cmd) {
+	case SET_COUNTER_VALUE:
+		kvm_set_cntxct(vcpu, val, timer);
+		break;
+	case USERSPACE_USLEEP:
+		usleep(val);
+		break;
+	case USERSPACE_SCHED_YIELD:
+		sched_yield();
+		break;
+	case USERSPACE_MIGRATE_SELF:
+		pin_self_to_cpu(next_pcpu());
+		break;
+	default:
+		break;
+	}
+}
+
+static void test_run(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	/* Start on CPU 0 */
+	pin_self_to_cpu(0);
+
+	while (true) {
+		vcpu_run(vcpu);
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			handle_sync(vcpu, &uc);
+			break;
+		case UCALL_DONE:
+			goto out;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			goto out;
+		default:
+			TEST_FAIL("Unexpected guest exit\n");
+		}
+	}
+
+ out:
+	return;
+}
+
+static void test_init_timer_irq(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	ptimer_irq = vcpu_get_ptimer_irq(vcpu);
+	vtimer_irq = vcpu_get_vtimer_irq(vcpu);
+
+	sync_global_to_guest(vm, ptimer_irq);
+	sync_global_to_guest(vm, vtimer_irq);
+
+	pr_debug("ptimer_irq: %d; vtimer_irq: %d\n", ptimer_irq, vtimer_irq);
+}
+
+static void test_vm_create(struct kvm_vm **vm, struct kvm_vcpu **vcpu,
+			   enum arch_timer timer)
+{
+	*vm = vm_create_with_one_vcpu(vcpu, guest_code);
+	TEST_ASSERT(*vm, "Failed to create the test VM\n");
+
+	vm_init_descriptor_tables(*vm);
+	vm_install_exception_handler(*vm, VECTOR_IRQ_CURRENT,
+				     guest_irq_handler);
+
+	vcpu_init_descriptor_tables(*vcpu);
+	vcpu_args_set(*vcpu, 1, timer);
+
+	test_init_timer_irq(*vm, *vcpu);
+
+	sync_global_to_guest(*vm, test_args);
+	sync_global_to_guest(*vm, CVAL_MAX);
+	sync_global_to_guest(*vm, DEF_CNT);
+}
+
+static void test_vm_cleanup(struct kvm_vm *vm)
+{
+	kvm_vm_free(vm);
+}
+
+static void test_print_help(char *name)
+{
+	pr_info("Usage: %s [-h] [-b] [-i iterations] [-l long_wait_ms] [-p] [-v]\n"
+		, name);
+	pr_info("\t-i: Number of iterations (default: %u)\n",
+		NR_TEST_ITERS_DEF);
+	pr_info("\t-b: Test both physical and virtual timers (default: true)\n");
+	pr_info("\t-l: Delta (in ms) used for long wait time test (default: %u)\n",
+	     LONG_WAIT_TEST_MS);
+	pr_info("\t-w: Delta (in ms) used for wait times (default: %u)\n",
+		WAIT_TEST_MS);
+	pr_info("\t-p: Test physical timer (default: true)\n");
+	pr_info("\t-v: Test virtual timer (default: true)\n");
+	pr_info("\t-h: Print this help message\n");
+}
+
+static bool parse_args(int argc, char *argv[])
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "bhi:l:pvw:")) != -1) {
+		switch (opt) {
+		case 'b':
+			test_args.test_physical = true;
+			test_args.test_virtual = true;
+			break;
+		case 'i':
+			test_args.iterations =
+			    atoi_positive("Number of iterations", optarg);
+			break;
+		case 'l':
+			test_args.long_wait_ms =
+			    atoi_positive("Long wait time", optarg);
+			break;
+		case 'p':
+			test_args.test_physical = true;
+			test_args.test_virtual = false;
+			break;
+		case 'v':
+			test_args.test_virtual = true;
+			test_args.test_physical = false;
+			break;
+		case 'w':
+			test_args.wait_ms = atoi_positive("Wait time", optarg);
+			break;
+		case 'h':
+		default:
+			goto err;
+		}
+	}
+
+	return true;
+
+ err:
+	test_print_help(argv[0]);
+	return false;
+}
+
+static void set_counter_defaults(void)
+{
+	const uint64_t MIN_ROLLOVER_SECS = 40ULL * 365 * 24 * 3600;
+	uint64_t freq = read_sysreg(CNTFRQ_EL0);
+	int width = ilog2(MIN_ROLLOVER_SECS * freq);
+
+	width = clamp(width, 56, 64);
+	CVAL_MAX = GENMASK_ULL(width - 1, 0);
+	DEF_CNT = CVAL_MAX / 2;
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	/* Tell stdout not to buffer its content */
+	setbuf(stdout, NULL);
+
+	TEST_REQUIRE(kvm_supports_vgic_v3());
+
+	if (!parse_args(argc, argv))
+		exit(KSFT_SKIP);
+
+	sched_getaffinity(0, sizeof(default_cpuset), &default_cpuset);
+	set_counter_defaults();
+
+	if (test_args.test_virtual) {
+		test_vm_create(&vm, &vcpu, VIRTUAL);
+		test_run(vm, vcpu);
+		test_vm_cleanup(vm);
+	}
+
+	if (test_args.test_physical) {
+		test_vm_create(&vm, &vcpu, PHYSICAL);
+		test_run(vm, vcpu);
+		test_vm_cleanup(vm);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/at.c b/tools/testing/selftests/kvm/arm64/at.c
new file mode 100644
index 000000000000..c8ee6f520734
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/at.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * at - Test for KVM's AT emulation in the EL2&0 and EL1&0 translation regimes.
+ */
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+#include "ucall.h"
+
+#include <asm/sysreg.h>
+
+#define TEST_ADDR	0x80000000
+
+enum {
+	CLEAR_ACCESS_FLAG,
+	TEST_ACCESS_FLAG,
+};
+
+static u64 *ptep_hva;
+
+#define copy_el2_to_el1(reg)						\
+	write_sysreg_s(read_sysreg_s(SYS_##reg##_EL1), SYS_##reg##_EL12)
+
+/* Yes, this is an ugly hack */
+#define __at(op, addr)	write_sysreg_s(addr, op)
+
+#define test_at_insn(op, expect_fault)							\
+do {											\
+	u64 par, fsc;									\
+	bool fault;									\
+											\
+	GUEST_SYNC(CLEAR_ACCESS_FLAG);							\
+											\
+	__at(OP_AT_##op, TEST_ADDR);							\
+	isb();										\
+	par = read_sysreg(par_el1);							\
+											\
+	fault = par & SYS_PAR_EL1_F;							\
+	fsc = FIELD_GET(SYS_PAR_EL1_FST, par);						\
+											\
+	__GUEST_ASSERT((expect_fault) == fault,						\
+		       "AT "#op": %sexpected fault (par: %lx)1",			\
+		       (expect_fault) ? "" : "un", par);				\
+	if ((expect_fault)) {								\
+		__GUEST_ASSERT(fsc == ESR_ELx_FSC_ACCESS_L(3),				\
+			       "AT "#op": expected access flag fault (par: %lx)",	\
+			       par);							\
+	} else {									\
+		GUEST_ASSERT_EQ(FIELD_GET(SYS_PAR_EL1_ATTR, par), MAIR_ATTR_NORMAL);	\
+		GUEST_ASSERT_EQ(FIELD_GET(SYS_PAR_EL1_SH, par), PTE_SHARED >> 8);	\
+		GUEST_ASSERT_EQ(par & SYS_PAR_EL1_PA, TEST_ADDR);			\
+		GUEST_SYNC(TEST_ACCESS_FLAG);						\
+	}										\
+} while (0)
+
+static void test_at(bool expect_fault)
+{
+	test_at_insn(S1E2R, expect_fault);
+	test_at_insn(S1E2W, expect_fault);
+
+	/* Reuse the stage-1 MMU context from EL2 at EL1 */
+	copy_el2_to_el1(SCTLR);
+	copy_el2_to_el1(MAIR);
+	copy_el2_to_el1(TCR);
+	copy_el2_to_el1(TTBR0);
+	copy_el2_to_el1(TTBR1);
+
+	/* Disable stage-2 translation and enter a non-host context */
+	write_sysreg(0, vtcr_el2);
+	write_sysreg(0, vttbr_el2);
+	sysreg_clear_set(hcr_el2, HCR_EL2_TGE | HCR_EL2_VM, 0);
+	isb();
+
+	test_at_insn(S1E1R, expect_fault);
+	test_at_insn(S1E1W, expect_fault);
+}
+
+static void guest_code(void)
+{
+	sysreg_clear_set(tcr_el1, TCR_HA, 0);
+	isb();
+
+	test_at(true);
+
+	if (!SYS_FIELD_GET(ID_AA64MMFR1_EL1, HAFDBS, read_sysreg(id_aa64mmfr1_el1)))
+		GUEST_DONE();
+
+	/*
+	 * KVM's software PTW makes the implementation choice that the AT
+	 * instruction sets the access flag.
+	 */
+	sysreg_clear_set(tcr_el1, 0, TCR_HA);
+	isb();
+	test_at(false);
+
+	GUEST_DONE();
+}
+
+static void handle_sync(struct kvm_vcpu *vcpu, struct ucall *uc)
+{
+	switch (uc->args[1]) {
+	case CLEAR_ACCESS_FLAG:
+		/*
+		 * Delete + reinstall the memslot to invalidate stage-2
+		 * mappings of the stage-1 page tables, forcing KVM to
+		 * use the 'slow' AT emulation path.
+		 *
+		 * This and clearing the access flag from host userspace
+		 * ensures that the access flag cannot be set speculatively
+		 * and is reliably cleared at the time of the AT instruction.
+		 */
+		clear_bit(__ffs(PTE_AF), ptep_hva);
+		vm_mem_region_reload(vcpu->vm, vcpu->vm->memslots[MEM_REGION_PT]);
+		break;
+	case TEST_ACCESS_FLAG:
+		TEST_ASSERT(test_bit(__ffs(PTE_AF), ptep_hva),
+			    "Expected access flag to be set (desc: %lu)", *ptep_hva);
+		break;
+	default:
+		TEST_FAIL("Unexpected SYNC arg: %lu", uc->args[1]);
+	}
+}
+
+static void run_test(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	while (true) {
+		vcpu_run(vcpu);
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_DONE:
+			return;
+		case UCALL_SYNC:
+			handle_sync(vcpu, &uc);
+			continue;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			return;
+		default:
+			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+		}
+	}
+}
+
+int main(void)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_ARM_EL2));
+
+	vm = vm_create(1);
+
+	kvm_get_default_vcpu_target(vm, &init);
+	init.features[0] |= BIT(KVM_ARM_VCPU_HAS_EL2);
+	vcpu = aarch64_vcpu_add(vm, 0, &init, guest_code);
+	kvm_arch_vm_finalize_vcpus(vm);
+
+	virt_map(vm, TEST_ADDR, TEST_ADDR, 1);
+	ptep_hva = virt_get_pte_hva_at_level(vm, TEST_ADDR, 3);
+	run_test(vcpu);
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/debug-exceptions.c b/tools/testing/selftests/kvm/arm64/debug-exceptions.c
new file mode 100644
index 000000000000..1d431de8729c
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/debug-exceptions.c
@@ -0,0 +1,607 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+#include <linux/bitfield.h>
+
+#define MDSCR_KDE	(1 << 13)
+#define MDSCR_MDE	(1 << 15)
+#define MDSCR_SS	(1 << 0)
+
+#define DBGBCR_LEN8	(0xff << 5)
+#define DBGBCR_EXEC	(0x0 << 3)
+#define DBGBCR_EL1	(0x1 << 1)
+#define DBGBCR_E	(0x1 << 0)
+#define DBGBCR_LBN_SHIFT	16
+#define DBGBCR_BT_SHIFT		20
+#define DBGBCR_BT_ADDR_LINK_CTX	(0x1 << DBGBCR_BT_SHIFT)
+#define DBGBCR_BT_CTX_LINK	(0x3 << DBGBCR_BT_SHIFT)
+
+#define DBGWCR_LEN8	(0xff << 5)
+#define DBGWCR_RD	(0x1 << 3)
+#define DBGWCR_WR	(0x2 << 3)
+#define DBGWCR_EL1	(0x1 << 1)
+#define DBGWCR_E	(0x1 << 0)
+#define DBGWCR_LBN_SHIFT	16
+#define DBGWCR_WT_SHIFT		20
+#define DBGWCR_WT_LINK		(0x1 << DBGWCR_WT_SHIFT)
+
+#define SPSR_D		(1 << 9)
+#define SPSR_SS		(1 << 21)
+
+extern unsigned char sw_bp, sw_bp2, hw_bp, hw_bp2, bp_svc, bp_brk, hw_wp, ss_start, hw_bp_ctx;
+extern unsigned char iter_ss_begin, iter_ss_end;
+static volatile uint64_t sw_bp_addr, hw_bp_addr;
+static volatile uint64_t wp_addr, wp_data_addr;
+static volatile uint64_t svc_addr;
+static volatile uint64_t ss_addr[4], ss_idx;
+#define  PC(v)  ((uint64_t)&(v))
+
+#define GEN_DEBUG_WRITE_REG(reg_name)			\
+static void write_##reg_name(int num, uint64_t val)	\
+{							\
+	switch (num) {					\
+	case 0:						\
+		write_sysreg(val, reg_name##0_el1);	\
+		break;					\
+	case 1:						\
+		write_sysreg(val, reg_name##1_el1);	\
+		break;					\
+	case 2:						\
+		write_sysreg(val, reg_name##2_el1);	\
+		break;					\
+	case 3:						\
+		write_sysreg(val, reg_name##3_el1);	\
+		break;					\
+	case 4:						\
+		write_sysreg(val, reg_name##4_el1);	\
+		break;					\
+	case 5:						\
+		write_sysreg(val, reg_name##5_el1);	\
+		break;					\
+	case 6:						\
+		write_sysreg(val, reg_name##6_el1);	\
+		break;					\
+	case 7:						\
+		write_sysreg(val, reg_name##7_el1);	\
+		break;					\
+	case 8:						\
+		write_sysreg(val, reg_name##8_el1);	\
+		break;					\
+	case 9:						\
+		write_sysreg(val, reg_name##9_el1);	\
+		break;					\
+	case 10:					\
+		write_sysreg(val, reg_name##10_el1);	\
+		break;					\
+	case 11:					\
+		write_sysreg(val, reg_name##11_el1);	\
+		break;					\
+	case 12:					\
+		write_sysreg(val, reg_name##12_el1);	\
+		break;					\
+	case 13:					\
+		write_sysreg(val, reg_name##13_el1);	\
+		break;					\
+	case 14:					\
+		write_sysreg(val, reg_name##14_el1);	\
+		break;					\
+	case 15:					\
+		write_sysreg(val, reg_name##15_el1);	\
+		break;					\
+	default:					\
+		GUEST_ASSERT(0);			\
+	}						\
+}
+
+/* Define write_dbgbcr()/write_dbgbvr()/write_dbgwcr()/write_dbgwvr() */
+GEN_DEBUG_WRITE_REG(dbgbcr)
+GEN_DEBUG_WRITE_REG(dbgbvr)
+GEN_DEBUG_WRITE_REG(dbgwcr)
+GEN_DEBUG_WRITE_REG(dbgwvr)
+
+static void reset_debug_state(void)
+{
+	uint8_t brps, wrps, i;
+	uint64_t dfr0;
+
+	asm volatile("msr daifset, #8");
+
+	write_sysreg(0, osdlr_el1);
+	write_sysreg(0, oslar_el1);
+	isb();
+
+	write_sysreg(0, mdscr_el1);
+	write_sysreg(0, contextidr_el1);
+
+	/* Reset all bcr/bvr/wcr/wvr registers */
+	dfr0 = read_sysreg(id_aa64dfr0_el1);
+	brps = FIELD_GET(ID_AA64DFR0_EL1_BRPs, dfr0);
+	for (i = 0; i <= brps; i++) {
+		write_dbgbcr(i, 0);
+		write_dbgbvr(i, 0);
+	}
+	wrps = FIELD_GET(ID_AA64DFR0_EL1_WRPs, dfr0);
+	for (i = 0; i <= wrps; i++) {
+		write_dbgwcr(i, 0);
+		write_dbgwvr(i, 0);
+	}
+
+	isb();
+}
+
+static void enable_os_lock(void)
+{
+	write_sysreg(1, oslar_el1);
+	isb();
+
+	GUEST_ASSERT(read_sysreg(oslsr_el1) & 2);
+}
+
+static void enable_monitor_debug_exceptions(void)
+{
+	uint64_t mdscr;
+
+	asm volatile("msr daifclr, #8");
+
+	mdscr = read_sysreg(mdscr_el1) | MDSCR_KDE | MDSCR_MDE;
+	write_sysreg(mdscr, mdscr_el1);
+	isb();
+}
+
+static void install_wp(uint8_t wpn, uint64_t addr)
+{
+	uint32_t wcr;
+
+	wcr = DBGWCR_LEN8 | DBGWCR_RD | DBGWCR_WR | DBGWCR_EL1 | DBGWCR_E;
+	write_dbgwcr(wpn, wcr);
+	write_dbgwvr(wpn, addr);
+
+	isb();
+
+	enable_monitor_debug_exceptions();
+}
+
+static void install_hw_bp(uint8_t bpn, uint64_t addr)
+{
+	uint32_t bcr;
+
+	bcr = DBGBCR_LEN8 | DBGBCR_EXEC | DBGBCR_EL1 | DBGBCR_E;
+	write_dbgbcr(bpn, bcr);
+	write_dbgbvr(bpn, addr);
+	isb();
+
+	enable_monitor_debug_exceptions();
+}
+
+static void install_wp_ctx(uint8_t addr_wp, uint8_t ctx_bp, uint64_t addr,
+			   uint64_t ctx)
+{
+	uint32_t wcr;
+	uint64_t ctx_bcr;
+
+	/* Setup a context-aware breakpoint for Linked Context ID Match */
+	ctx_bcr = DBGBCR_LEN8 | DBGBCR_EXEC | DBGBCR_EL1 | DBGBCR_E |
+		  DBGBCR_BT_CTX_LINK;
+	write_dbgbcr(ctx_bp, ctx_bcr);
+	write_dbgbvr(ctx_bp, ctx);
+
+	/* Setup a linked watchpoint (linked to the context-aware breakpoint) */
+	wcr = DBGWCR_LEN8 | DBGWCR_RD | DBGWCR_WR | DBGWCR_EL1 | DBGWCR_E |
+	      DBGWCR_WT_LINK | ((uint32_t)ctx_bp << DBGWCR_LBN_SHIFT);
+	write_dbgwcr(addr_wp, wcr);
+	write_dbgwvr(addr_wp, addr);
+	isb();
+
+	enable_monitor_debug_exceptions();
+}
+
+void install_hw_bp_ctx(uint8_t addr_bp, uint8_t ctx_bp, uint64_t addr,
+		       uint64_t ctx)
+{
+	uint32_t addr_bcr, ctx_bcr;
+
+	/* Setup a context-aware breakpoint for Linked Context ID Match */
+	ctx_bcr = DBGBCR_LEN8 | DBGBCR_EXEC | DBGBCR_EL1 | DBGBCR_E |
+		  DBGBCR_BT_CTX_LINK;
+	write_dbgbcr(ctx_bp, ctx_bcr);
+	write_dbgbvr(ctx_bp, ctx);
+
+	/*
+	 * Setup a normal breakpoint for Linked Address Match, and link it
+	 * to the context-aware breakpoint.
+	 */
+	addr_bcr = DBGBCR_LEN8 | DBGBCR_EXEC | DBGBCR_EL1 | DBGBCR_E |
+		   DBGBCR_BT_ADDR_LINK_CTX |
+		   ((uint32_t)ctx_bp << DBGBCR_LBN_SHIFT);
+	write_dbgbcr(addr_bp, addr_bcr);
+	write_dbgbvr(addr_bp, addr);
+	isb();
+
+	enable_monitor_debug_exceptions();
+}
+
+static void install_ss(void)
+{
+	uint64_t mdscr;
+
+	asm volatile("msr daifclr, #8");
+
+	mdscr = read_sysreg(mdscr_el1) | MDSCR_KDE | MDSCR_SS;
+	write_sysreg(mdscr, mdscr_el1);
+	isb();
+}
+
+static volatile char write_data;
+
+static void guest_code(uint8_t bpn, uint8_t wpn, uint8_t ctx_bpn)
+{
+	uint64_t ctx = 0xabcdef;	/* a random context number */
+
+	/* Software-breakpoint */
+	reset_debug_state();
+	asm volatile("sw_bp: brk #0");
+	GUEST_ASSERT_EQ(sw_bp_addr, PC(sw_bp));
+
+	/* Hardware-breakpoint */
+	reset_debug_state();
+	install_hw_bp(bpn, PC(hw_bp));
+	asm volatile("hw_bp: nop");
+	GUEST_ASSERT_EQ(hw_bp_addr, PC(hw_bp));
+
+	/* Hardware-breakpoint + svc */
+	reset_debug_state();
+	install_hw_bp(bpn, PC(bp_svc));
+	asm volatile("bp_svc: svc #0");
+	GUEST_ASSERT_EQ(hw_bp_addr, PC(bp_svc));
+	GUEST_ASSERT_EQ(svc_addr, PC(bp_svc) + 4);
+
+	/* Hardware-breakpoint + software-breakpoint */
+	reset_debug_state();
+	install_hw_bp(bpn, PC(bp_brk));
+	asm volatile("bp_brk: brk #0");
+	GUEST_ASSERT_EQ(sw_bp_addr, PC(bp_brk));
+	GUEST_ASSERT_EQ(hw_bp_addr, PC(bp_brk));
+
+	/* Watchpoint */
+	reset_debug_state();
+	install_wp(wpn, PC(write_data));
+	write_data = 'x';
+	GUEST_ASSERT_EQ(write_data, 'x');
+	GUEST_ASSERT_EQ(wp_data_addr, PC(write_data));
+
+	/* Single-step */
+	reset_debug_state();
+	install_ss();
+	ss_idx = 0;
+	asm volatile("ss_start:\n"
+		     "mrs x0, esr_el1\n"
+		     "add x0, x0, #1\n"
+		     "msr daifset, #8\n"
+		     : : : "x0");
+	GUEST_ASSERT_EQ(ss_addr[0], PC(ss_start));
+	GUEST_ASSERT_EQ(ss_addr[1], PC(ss_start) + 4);
+	GUEST_ASSERT_EQ(ss_addr[2], PC(ss_start) + 8);
+
+	/* OS Lock does not block software-breakpoint */
+	reset_debug_state();
+	enable_os_lock();
+	sw_bp_addr = 0;
+	asm volatile("sw_bp2: brk #0");
+	GUEST_ASSERT_EQ(sw_bp_addr, PC(sw_bp2));
+
+	/* OS Lock blocking hardware-breakpoint */
+	reset_debug_state();
+	enable_os_lock();
+	install_hw_bp(bpn, PC(hw_bp2));
+	hw_bp_addr = 0;
+	asm volatile("hw_bp2: nop");
+	GUEST_ASSERT_EQ(hw_bp_addr, 0);
+
+	/* OS Lock blocking watchpoint */
+	reset_debug_state();
+	enable_os_lock();
+	write_data = '\0';
+	wp_data_addr = 0;
+	install_wp(wpn, PC(write_data));
+	write_data = 'x';
+	GUEST_ASSERT_EQ(write_data, 'x');
+	GUEST_ASSERT_EQ(wp_data_addr, 0);
+
+	/* OS Lock blocking single-step */
+	reset_debug_state();
+	enable_os_lock();
+	ss_addr[0] = 0;
+	install_ss();
+	ss_idx = 0;
+	asm volatile("mrs x0, esr_el1\n\t"
+		     "add x0, x0, #1\n\t"
+		     "msr daifset, #8\n\t"
+		     : : : "x0");
+	GUEST_ASSERT_EQ(ss_addr[0], 0);
+
+	/* Linked hardware-breakpoint */
+	hw_bp_addr = 0;
+	reset_debug_state();
+	install_hw_bp_ctx(bpn, ctx_bpn, PC(hw_bp_ctx), ctx);
+	/* Set context id */
+	write_sysreg(ctx, contextidr_el1);
+	isb();
+	asm volatile("hw_bp_ctx: nop");
+	write_sysreg(0, contextidr_el1);
+	GUEST_ASSERT_EQ(hw_bp_addr, PC(hw_bp_ctx));
+
+	/* Linked watchpoint */
+	reset_debug_state();
+	install_wp_ctx(wpn, ctx_bpn, PC(write_data), ctx);
+	/* Set context id */
+	write_sysreg(ctx, contextidr_el1);
+	isb();
+	write_data = 'x';
+	GUEST_ASSERT_EQ(write_data, 'x');
+	GUEST_ASSERT_EQ(wp_data_addr, PC(write_data));
+
+	GUEST_DONE();
+}
+
+static void guest_sw_bp_handler(struct ex_regs *regs)
+{
+	sw_bp_addr = regs->pc;
+	regs->pc += 4;
+}
+
+static void guest_hw_bp_handler(struct ex_regs *regs)
+{
+	hw_bp_addr = regs->pc;
+	regs->pstate |= SPSR_D;
+}
+
+static void guest_wp_handler(struct ex_regs *regs)
+{
+	wp_data_addr = read_sysreg(far_el1);
+	wp_addr = regs->pc;
+	regs->pstate |= SPSR_D;
+}
+
+static void guest_ss_handler(struct ex_regs *regs)
+{
+	__GUEST_ASSERT(ss_idx < 4, "Expected index < 4, got '%lu'", ss_idx);
+	ss_addr[ss_idx++] = regs->pc;
+	regs->pstate |= SPSR_SS;
+}
+
+static void guest_svc_handler(struct ex_regs *regs)
+{
+	svc_addr = regs->pc;
+}
+
+static void guest_code_ss(int test_cnt)
+{
+	uint64_t i;
+	uint64_t bvr, wvr, w_bvr, w_wvr;
+
+	for (i = 0; i < test_cnt; i++) {
+		/* Bits [1:0] of dbg{b,w}vr are RES0 */
+		w_bvr = i << 2;
+		w_wvr = i << 2;
+
+		/*
+		 * Enable Single Step execution.  Note!  This _must_ be a bare
+		 * ucall as the ucall() path uses atomic operations to manage
+		 * the ucall structures, and the built-in "atomics" are usually
+		 * implemented via exclusive access instructions.  The exlusive
+		 * monitor is cleared on ERET, and so taking debug exceptions
+		 * during a LDREX=>STREX sequence will prevent forward progress
+		 * and hang the guest/test.
+		 */
+		GUEST_UCALL_NONE();
+
+		/*
+		 * The userspace will verify that the pc is as expected during
+		 * single step execution between iter_ss_begin and iter_ss_end.
+		 */
+		asm volatile("iter_ss_begin:nop\n");
+
+		write_sysreg(w_bvr, dbgbvr0_el1);
+		write_sysreg(w_wvr, dbgwvr0_el1);
+		bvr = read_sysreg(dbgbvr0_el1);
+		wvr = read_sysreg(dbgwvr0_el1);
+
+		/* Userspace disables Single Step when the end is nigh. */
+		asm volatile("iter_ss_end:\n");
+
+		GUEST_ASSERT_EQ(bvr, w_bvr);
+		GUEST_ASSERT_EQ(wvr, w_wvr);
+	}
+	GUEST_DONE();
+}
+
+static int debug_version(uint64_t id_aa64dfr0)
+{
+	return FIELD_GET(ID_AA64DFR0_EL1_DebugVer, id_aa64dfr0);
+}
+
+static void test_guest_debug_exceptions(uint8_t bpn, uint8_t wpn, uint8_t ctx_bpn)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(vcpu);
+
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_BRK64, guest_sw_bp_handler);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_BREAKPT_CUR, guest_hw_bp_handler);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_WATCHPT_CUR, guest_wp_handler);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_SOFTSTP_CUR, guest_ss_handler);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_SVC64, guest_svc_handler);
+
+	/* Specify bpn/wpn/ctx_bpn to be tested */
+	vcpu_args_set(vcpu, 3, bpn, wpn, ctx_bpn);
+	pr_debug("Use bpn#%d, wpn#%d and ctx_bpn#%d\n", bpn, wpn, ctx_bpn);
+
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		goto done;
+	default:
+		TEST_FAIL("Unknown ucall %lu", uc.cmd);
+	}
+
+done:
+	kvm_vm_free(vm);
+}
+
+void test_single_step_from_userspace(int test_cnt)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	struct kvm_run *run;
+	uint64_t pc, cmd;
+	uint64_t test_pc = 0;
+	bool ss_enable = false;
+	struct kvm_guest_debug debug = {};
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_ss);
+	run = vcpu->run;
+	vcpu_args_set(vcpu, 1, test_cnt);
+
+	while (1) {
+		vcpu_run(vcpu);
+		if (run->exit_reason != KVM_EXIT_DEBUG) {
+			cmd = get_ucall(vcpu, &uc);
+			if (cmd == UCALL_ABORT) {
+				REPORT_GUEST_ASSERT(uc);
+				/* NOT REACHED */
+			} else if (cmd == UCALL_DONE) {
+				break;
+			}
+
+			TEST_ASSERT(cmd == UCALL_NONE,
+				    "Unexpected ucall cmd 0x%lx", cmd);
+
+			debug.control = KVM_GUESTDBG_ENABLE |
+					KVM_GUESTDBG_SINGLESTEP;
+			ss_enable = true;
+			vcpu_guest_debug_set(vcpu, &debug);
+			continue;
+		}
+
+		TEST_ASSERT(ss_enable, "Unexpected KVM_EXIT_DEBUG");
+
+		/* Check if the current pc is expected. */
+		pc = vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc));
+		TEST_ASSERT(!test_pc || pc == test_pc,
+			    "Unexpected pc 0x%lx (expected 0x%lx)",
+			    pc, test_pc);
+
+		if ((pc + 4) == (uint64_t)&iter_ss_end) {
+			test_pc = 0;
+			debug.control = KVM_GUESTDBG_ENABLE;
+			ss_enable = false;
+			vcpu_guest_debug_set(vcpu, &debug);
+			continue;
+		}
+
+		/*
+		 * If the current pc is between iter_ss_bgin and
+		 * iter_ss_end, the pc for the next KVM_EXIT_DEBUG should
+		 * be the current pc + 4.
+		 */
+		if ((pc >= (uint64_t)&iter_ss_begin) &&
+		    (pc < (uint64_t)&iter_ss_end))
+			test_pc = pc + 4;
+		else
+			test_pc = 0;
+	}
+
+	kvm_vm_free(vm);
+}
+
+/*
+ * Run debug testing using the various breakpoint#, watchpoint# and
+ * context-aware breakpoint# with the given ID_AA64DFR0_EL1 configuration.
+ */
+void test_guest_debug_exceptions_all(uint64_t aa64dfr0)
+{
+	uint8_t brp_num, wrp_num, ctx_brp_num, normal_brp_num, ctx_brp_base;
+	int b, w, c;
+
+	/* Number of breakpoints */
+	brp_num = FIELD_GET(ID_AA64DFR0_EL1_BRPs, aa64dfr0) + 1;
+	__TEST_REQUIRE(brp_num >= 2, "At least two breakpoints are required");
+
+	/* Number of watchpoints */
+	wrp_num = FIELD_GET(ID_AA64DFR0_EL1_WRPs, aa64dfr0) + 1;
+
+	/* Number of context aware breakpoints */
+	ctx_brp_num = FIELD_GET(ID_AA64DFR0_EL1_CTX_CMPs, aa64dfr0) + 1;
+
+	pr_debug("%s brp_num:%d, wrp_num:%d, ctx_brp_num:%d\n", __func__,
+		 brp_num, wrp_num, ctx_brp_num);
+
+	/* Number of normal (non-context aware) breakpoints */
+	normal_brp_num = brp_num - ctx_brp_num;
+
+	/* Lowest context aware breakpoint number */
+	ctx_brp_base = normal_brp_num;
+
+	/* Run tests with all supported breakpoints/watchpoints */
+	for (c = ctx_brp_base; c < ctx_brp_base + ctx_brp_num; c++) {
+		for (b = 0; b < normal_brp_num; b++) {
+			for (w = 0; w < wrp_num; w++)
+				test_guest_debug_exceptions(b, w, c);
+		}
+	}
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("Usage: %s [-h] [-i iterations of the single step test]\n", name);
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int opt;
+	int ss_iteration = 10000;
+	uint64_t aa64dfr0;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	aa64dfr0 = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1));
+	__TEST_REQUIRE(debug_version(aa64dfr0) >= 6,
+		       "Armv8 debug architecture not supported.");
+	kvm_vm_free(vm);
+
+	while ((opt = getopt(argc, argv, "i:")) != -1) {
+		switch (opt) {
+		case 'i':
+			ss_iteration = atoi_positive("Number of iterations", optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	test_guest_debug_exceptions_all(aa64dfr0);
+	test_single_step_from_userspace(ss_iteration);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/external_aborts.c b/tools/testing/selftests/kvm/arm64/external_aborts.c
new file mode 100644
index 000000000000..d8fe17a6cc59
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/external_aborts.c
@@ -0,0 +1,415 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * external_abort - Tests for userspace external abort injection
+ *
+ * Copyright (c) 2024 Google LLC
+ */
+#include "processor.h"
+#include "test_util.h"
+
+#define MMIO_ADDR		0x8000000ULL
+#define EXPECTED_SERROR_ISS	(ESR_ELx_ISV | 0x1d1ed)
+
+static u64 expected_abort_pc;
+
+static void expect_sea_handler(struct ex_regs *regs)
+{
+	u64 esr = read_sysreg(esr_el1);
+
+	GUEST_ASSERT_EQ(regs->pc, expected_abort_pc);
+	GUEST_ASSERT_EQ(ESR_ELx_EC(esr), ESR_ELx_EC_DABT_CUR);
+	GUEST_ASSERT_EQ(esr & ESR_ELx_FSC_TYPE, ESR_ELx_FSC_EXTABT);
+
+	GUEST_DONE();
+}
+
+static void unexpected_dabt_handler(struct ex_regs *regs)
+{
+	GUEST_FAIL("Unexpected data abort at PC: %lx\n", regs->pc);
+}
+
+static struct kvm_vm *vm_create_with_dabt_handler(struct kvm_vcpu **vcpu, void *guest_code,
+						  handler_fn dabt_handler)
+{
+	struct kvm_vm *vm = vm_create_with_one_vcpu(vcpu, guest_code);
+
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(*vcpu);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT, ESR_ELx_EC_DABT_CUR, dabt_handler);
+
+	virt_map(vm, MMIO_ADDR, MMIO_ADDR, 1);
+
+	return vm;
+}
+
+static void vcpu_inject_sea(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_events events = {};
+
+	events.exception.ext_dabt_pending = true;
+	vcpu_events_set(vcpu, &events);
+}
+
+static bool vcpu_has_ras(struct kvm_vcpu *vcpu)
+{
+	u64 pfr0 = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1));
+
+	return SYS_FIELD_GET(ID_AA64PFR0_EL1, RAS, pfr0);
+}
+
+static bool guest_has_ras(void)
+{
+	return SYS_FIELD_GET(ID_AA64PFR0_EL1, RAS, read_sysreg(id_aa64pfr0_el1));
+}
+
+static void vcpu_inject_serror(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_events events = {};
+
+	events.exception.serror_pending = true;
+	if (vcpu_has_ras(vcpu)) {
+		events.exception.serror_has_esr = true;
+		events.exception.serror_esr = EXPECTED_SERROR_ISS;
+	}
+
+	vcpu_events_set(vcpu, &events);
+}
+
+static void __vcpu_run_expect(struct kvm_vcpu *vcpu, unsigned int cmd)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	default:
+		if (uc.cmd == cmd)
+			return;
+
+		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+	}
+}
+
+static void vcpu_run_expect_done(struct kvm_vcpu *vcpu)
+{
+	__vcpu_run_expect(vcpu, UCALL_DONE);
+}
+
+static void vcpu_run_expect_sync(struct kvm_vcpu *vcpu)
+{
+	__vcpu_run_expect(vcpu, UCALL_SYNC);
+}
+
+extern char test_mmio_abort_insn;
+
+static noinline void test_mmio_abort_guest(void)
+{
+	WRITE_ONCE(expected_abort_pc, (u64)&test_mmio_abort_insn);
+
+	asm volatile("test_mmio_abort_insn:\n\t"
+		     "ldr x0, [%0]\n\t"
+		     : : "r" (MMIO_ADDR) : "x0", "memory");
+
+	GUEST_FAIL("MMIO instruction should not retire");
+}
+
+/*
+ * Test that KVM doesn't complete MMIO emulation when userspace has made an
+ * external abort pending for the instruction.
+ */
+static void test_mmio_abort(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_mmio_abort_guest,
+							expect_sea_handler);
+	struct kvm_run *run = vcpu->run;
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_MMIO);
+	TEST_ASSERT_EQ(run->mmio.phys_addr, MMIO_ADDR);
+	TEST_ASSERT_EQ(run->mmio.len, sizeof(unsigned long));
+	TEST_ASSERT(!run->mmio.is_write, "Expected MMIO read");
+
+	vcpu_inject_sea(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+extern char test_mmio_nisv_insn;
+
+static void test_mmio_nisv_guest(void)
+{
+	WRITE_ONCE(expected_abort_pc, (u64)&test_mmio_nisv_insn);
+
+	asm volatile("test_mmio_nisv_insn:\n\t"
+		     "ldr x0, [%0], #8\n\t"
+		     : : "r" (MMIO_ADDR) : "x0", "memory");
+
+	GUEST_FAIL("MMIO instruction should not retire");
+}
+
+/*
+ * Test that the KVM_RUN ioctl fails for ESR_EL2.ISV=0 MMIO aborts if userspace
+ * hasn't enabled KVM_CAP_ARM_NISV_TO_USER.
+ */
+static void test_mmio_nisv(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_mmio_nisv_guest,
+							unexpected_dabt_handler);
+
+	TEST_ASSERT(_vcpu_run(vcpu), "Expected nonzero return code from KVM_RUN");
+	TEST_ASSERT_EQ(errno, ENOSYS);
+
+	kvm_vm_free(vm);
+}
+
+/*
+ * Test that ESR_EL2.ISV=0 MMIO aborts reach userspace and that an injected SEA
+ * reaches the guest.
+ */
+static void test_mmio_nisv_abort(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_mmio_nisv_guest,
+							expect_sea_handler);
+	struct kvm_run *run = vcpu->run;
+
+	vm_enable_cap(vm, KVM_CAP_ARM_NISV_TO_USER, 1);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_ARM_NISV);
+	TEST_ASSERT_EQ(run->arm_nisv.fault_ipa, MMIO_ADDR);
+
+	vcpu_inject_sea(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void unexpected_serror_handler(struct ex_regs *regs)
+{
+	GUEST_FAIL("Took unexpected SError exception");
+}
+
+static void test_serror_masked_guest(void)
+{
+	GUEST_ASSERT(read_sysreg(isr_el1) & ISR_EL1_A);
+
+	isb();
+
+	GUEST_DONE();
+}
+
+static void test_serror_masked(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_serror_masked_guest,
+							unexpected_dabt_handler);
+
+	vm_install_exception_handler(vm, VECTOR_ERROR_CURRENT, unexpected_serror_handler);
+
+	vcpu_inject_serror(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void expect_serror_handler(struct ex_regs *regs)
+{
+	u64 esr = read_sysreg(esr_el1);
+
+	GUEST_ASSERT_EQ(ESR_ELx_EC(esr), ESR_ELx_EC_SERROR);
+	if (guest_has_ras())
+		GUEST_ASSERT_EQ(ESR_ELx_ISS(esr), EXPECTED_SERROR_ISS);
+
+	GUEST_DONE();
+}
+
+static void test_serror_guest(void)
+{
+	GUEST_ASSERT(read_sysreg(isr_el1) & ISR_EL1_A);
+
+	local_serror_enable();
+	isb();
+	local_serror_disable();
+
+	GUEST_FAIL("Should've taken pending SError exception");
+}
+
+static void test_serror(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_serror_guest,
+							unexpected_dabt_handler);
+
+	vm_install_exception_handler(vm, VECTOR_ERROR_CURRENT, expect_serror_handler);
+
+	vcpu_inject_serror(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void expect_sea_s1ptw_handler(struct ex_regs *regs)
+{
+	u64 esr = read_sysreg(esr_el1);
+
+	GUEST_ASSERT_EQ(regs->pc, expected_abort_pc);
+	GUEST_ASSERT_EQ(ESR_ELx_EC(esr), ESR_ELx_EC_DABT_CUR);
+	GUEST_ASSERT_EQ((esr & ESR_ELx_FSC), ESR_ELx_FSC_SEA_TTW(3));
+
+	GUEST_DONE();
+}
+
+static noinline void test_s1ptw_abort_guest(void)
+{
+	extern char test_s1ptw_abort_insn;
+
+	WRITE_ONCE(expected_abort_pc, (u64)&test_s1ptw_abort_insn);
+
+	asm volatile("test_s1ptw_abort_insn:\n\t"
+		     "ldr x0, [%0]\n\t"
+		     : : "r" (MMIO_ADDR) : "x0", "memory");
+
+	GUEST_FAIL("Load on S1PTW abort should not retire");
+}
+
+static void test_s1ptw_abort(void)
+{
+	struct kvm_vcpu *vcpu;
+	u64 *ptep, bad_pa;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_s1ptw_abort_guest,
+							expect_sea_s1ptw_handler);
+
+	ptep = virt_get_pte_hva_at_level(vm, MMIO_ADDR, 2);
+	bad_pa = BIT(vm->pa_bits) - vm->page_size;
+
+	*ptep &= ~GENMASK(47, 12);
+	*ptep |= bad_pa;
+
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void test_serror_emulated_guest(void)
+{
+	GUEST_ASSERT(!(read_sysreg(isr_el1) & ISR_EL1_A));
+
+	local_serror_enable();
+	GUEST_SYNC(0);
+	local_serror_disable();
+
+	GUEST_FAIL("Should've taken unmasked SError exception");
+}
+
+static void test_serror_emulated(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_serror_emulated_guest,
+							unexpected_dabt_handler);
+
+	vm_install_exception_handler(vm, VECTOR_ERROR_CURRENT, expect_serror_handler);
+
+	vcpu_run_expect_sync(vcpu);
+	vcpu_inject_serror(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void test_mmio_ease_guest(void)
+{
+	sysreg_clear_set_s(SYS_SCTLR2_EL1, 0, SCTLR2_EL1_EASE);
+	isb();
+
+	test_mmio_abort_guest();
+}
+
+/*
+ * Test that KVM doesn't complete MMIO emulation when userspace has made an
+ * external abort pending for the instruction.
+ */
+static void test_mmio_ease(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_mmio_ease_guest,
+							unexpected_dabt_handler);
+	struct kvm_run *run = vcpu->run;
+	u64 pfr1;
+
+	pfr1 = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1));
+	if (!SYS_FIELD_GET(ID_AA64PFR1_EL1, DF2, pfr1)) {
+		pr_debug("Skipping %s\n", __func__);
+		return;
+	}
+
+	/*
+	 * SCTLR2_ELx.EASE changes the exception vector to the SError vector but
+	 * doesn't further modify the exception context (e.g. ESR_ELx, FAR_ELx).
+	 */
+	vm_install_exception_handler(vm, VECTOR_ERROR_CURRENT, expect_sea_handler);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_MMIO);
+	TEST_ASSERT_EQ(run->mmio.phys_addr, MMIO_ADDR);
+	TEST_ASSERT_EQ(run->mmio.len, sizeof(unsigned long));
+	TEST_ASSERT(!run->mmio.is_write, "Expected MMIO read");
+
+	vcpu_inject_sea(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void test_serror_amo_guest(void)
+{
+	/*
+	 * The ISB is entirely unnecessary (and highlights how FEAT_NV2 is borked)
+	 * since the write is redirected to memory. But don't write (intentionally)
+	 * broken code!
+	 */
+	sysreg_clear_set(hcr_el2, HCR_EL2_AMO | HCR_EL2_TGE, 0);
+	isb();
+
+	GUEST_SYNC(0);
+	GUEST_ASSERT(read_sysreg(isr_el1) & ISR_EL1_A);
+
+	/*
+	 * KVM treats the effective value of AMO as 1 when
+	 * HCR_EL2.{E2H,TGE} = {1, 0}, meaning the SError will be taken when
+	 * unmasked.
+	 */
+	local_serror_enable();
+	isb();
+	local_serror_disable();
+
+	GUEST_FAIL("Should've taken pending SError exception");
+}
+
+static void test_serror_amo(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = vm_create_with_dabt_handler(&vcpu, test_serror_amo_guest,
+							unexpected_dabt_handler);
+
+	vm_install_exception_handler(vm, VECTOR_ERROR_CURRENT, expect_serror_handler);
+	vcpu_run_expect_sync(vcpu);
+	vcpu_inject_serror(vcpu);
+	vcpu_run_expect_done(vcpu);
+	kvm_vm_free(vm);
+}
+
+int main(void)
+{
+	test_mmio_abort();
+	test_mmio_nisv();
+	test_mmio_nisv_abort();
+	test_serror();
+	test_serror_masked();
+	test_serror_emulated();
+	test_mmio_ease();
+	test_s1ptw_abort();
+
+	if (!test_supports_el2())
+		return 0;
+
+	test_serror_amo();
+}
diff --git a/tools/testing/selftests/kvm/arm64/get-reg-list.c b/tools/testing/selftests/kvm/arm64/get-reg-list.c
new file mode 100644
index 000000000000..0a3a94c4cca1
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/get-reg-list.c
@@ -0,0 +1,1011 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check for KVM_GET_REG_LIST regressions.
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ *
+ * While the blessed list should be created from the oldest possible
+ * kernel, we can't go older than v5.2, though, because that's the first
+ * release which includes df205b5c6328 ("KVM: arm64: Filter out invalid
+ * core register IDs in KVM_GET_REG_LIST"). Without that commit the core
+ * registers won't match expectations.
+ */
+#include <stdio.h>
+#include "kvm_util.h"
+#include "test_util.h"
+#include "processor.h"
+
+#define SYS_REG(r)	ARM64_SYS_REG(sys_reg_Op0(SYS_ ## r),	\
+				      sys_reg_Op1(SYS_ ## r),	\
+				      sys_reg_CRn(SYS_ ## r),	\
+				      sys_reg_CRm(SYS_ ## r),	\
+				      sys_reg_Op2(SYS_ ## r))
+
+struct feature_id_reg {
+	__u64 reg;
+	__u64 id_reg;
+	__u64 feat_shift;
+	__u64 feat_min;
+};
+
+#define FEAT(id, f, v)					\
+	.id_reg		= SYS_REG(id),			\
+	.feat_shift	= id ## _ ## f ## _SHIFT,	\
+	.feat_min	= id ## _ ## f ## _ ## v
+
+#define REG_FEAT(r, id, f, v)			\
+	{					\
+		.reg = SYS_REG(r),		\
+		FEAT(id, f, v)			\
+	}
+
+static struct feature_id_reg feat_id_regs[] = {
+	REG_FEAT(TCR2_EL1,	ID_AA64MMFR3_EL1, TCRX, IMP),
+	REG_FEAT(TCR2_EL2,	ID_AA64MMFR3_EL1, TCRX, IMP),
+	REG_FEAT(PIRE0_EL1,	ID_AA64MMFR3_EL1, S1PIE, IMP),
+	REG_FEAT(PIRE0_EL2,	ID_AA64MMFR3_EL1, S1PIE, IMP),
+	REG_FEAT(PIR_EL1,	ID_AA64MMFR3_EL1, S1PIE, IMP),
+	REG_FEAT(PIR_EL2,	ID_AA64MMFR3_EL1, S1PIE, IMP),
+	REG_FEAT(POR_EL1,	ID_AA64MMFR3_EL1, S1POE, IMP),
+	REG_FEAT(POR_EL0,	ID_AA64MMFR3_EL1, S1POE, IMP),
+	REG_FEAT(POR_EL2,	ID_AA64MMFR3_EL1, S1POE, IMP),
+	REG_FEAT(HCRX_EL2,	ID_AA64MMFR1_EL1, HCX, IMP),
+	REG_FEAT(HFGRTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HFGWTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HFGITR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HDFGRTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HDFGWTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HAFGRTR_EL2,	ID_AA64MMFR0_EL1, FGT, IMP),
+	REG_FEAT(HFGRTR2_EL2,	ID_AA64MMFR0_EL1, FGT, FGT2),
+	REG_FEAT(HFGWTR2_EL2,	ID_AA64MMFR0_EL1, FGT, FGT2),
+	REG_FEAT(HFGITR2_EL2,	ID_AA64MMFR0_EL1, FGT, FGT2),
+	REG_FEAT(HDFGRTR2_EL2,	ID_AA64MMFR0_EL1, FGT, FGT2),
+	REG_FEAT(HDFGWTR2_EL2,	ID_AA64MMFR0_EL1, FGT, FGT2),
+	REG_FEAT(ZCR_EL2,	ID_AA64PFR0_EL1, SVE, IMP),
+	REG_FEAT(SCTLR2_EL1,	ID_AA64MMFR3_EL1, SCTLRX, IMP),
+	REG_FEAT(SCTLR2_EL2,	ID_AA64MMFR3_EL1, SCTLRX, IMP),
+	REG_FEAT(VDISR_EL2,	ID_AA64PFR0_EL1, RAS, IMP),
+	REG_FEAT(VSESR_EL2,	ID_AA64PFR0_EL1, RAS, IMP),
+	REG_FEAT(VNCR_EL2,	ID_AA64MMFR4_EL1, NV_frac, NV2_ONLY),
+	REG_FEAT(CNTHV_CTL_EL2, ID_AA64MMFR1_EL1, VH, IMP),
+	REG_FEAT(CNTHV_CVAL_EL2,ID_AA64MMFR1_EL1, VH, IMP),
+	REG_FEAT(ZCR_EL2,	ID_AA64PFR0_EL1, SVE, IMP),
+};
+
+bool filter_reg(__u64 reg)
+{
+	/*
+	 * DEMUX register presence depends on the host's CLIDR_EL1.
+	 * This means there's no set of them that we can bless.
+	 */
+	if ((reg & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_DEMUX)
+		return true;
+
+	return false;
+}
+
+static bool check_supported_feat_reg(struct kvm_vcpu *vcpu, __u64 reg)
+{
+	int i, ret;
+	__u64 data, feat_val;
+
+	for (i = 0; i < ARRAY_SIZE(feat_id_regs); i++) {
+		if (feat_id_regs[i].reg == reg) {
+			ret = __vcpu_get_reg(vcpu, feat_id_regs[i].id_reg, &data);
+			if (ret < 0)
+				return false;
+
+			feat_val = ((data >> feat_id_regs[i].feat_shift) & 0xf);
+			return feat_val >= feat_id_regs[i].feat_min;
+		}
+	}
+
+	return true;
+}
+
+bool check_supported_reg(struct kvm_vcpu *vcpu, __u64 reg)
+{
+	return check_supported_feat_reg(vcpu, reg);
+}
+
+bool check_reject_set(int err)
+{
+	return err == EPERM;
+}
+
+void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
+{
+	struct vcpu_reg_sublist *s;
+	int feature;
+
+	for_each_sublist(c, s) {
+		if (s->finalize) {
+			feature = s->feature;
+			vcpu_ioctl(vcpu, KVM_ARM_VCPU_FINALIZE, &feature);
+		}
+	}
+}
+
+#define REG_MASK (KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK | KVM_REG_ARM_COPROC_MASK)
+
+#define CORE_REGS_XX_NR_WORDS	2
+#define CORE_SPSR_XX_NR_WORDS	2
+#define CORE_FPREGS_XX_NR_WORDS	4
+
+static const char *core_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 core_off = id & ~REG_MASK, idx;
+
+	/*
+	 * core_off is the offset into struct kvm_regs
+	 */
+	switch (core_off) {
+	case KVM_REG_ARM_CORE_REG(regs.regs[0]) ...
+	     KVM_REG_ARM_CORE_REG(regs.regs[30]):
+		idx = (core_off - KVM_REG_ARM_CORE_REG(regs.regs[0])) / CORE_REGS_XX_NR_WORDS;
+		TEST_ASSERT(idx < 31, "%s: Unexpected regs.regs index: %lld", prefix, idx);
+		return strdup_printf("KVM_REG_ARM_CORE_REG(regs.regs[%lld])", idx);
+	case KVM_REG_ARM_CORE_REG(regs.sp):
+		return "KVM_REG_ARM_CORE_REG(regs.sp)";
+	case KVM_REG_ARM_CORE_REG(regs.pc):
+		return "KVM_REG_ARM_CORE_REG(regs.pc)";
+	case KVM_REG_ARM_CORE_REG(regs.pstate):
+		return "KVM_REG_ARM_CORE_REG(regs.pstate)";
+	case KVM_REG_ARM_CORE_REG(sp_el1):
+		return "KVM_REG_ARM_CORE_REG(sp_el1)";
+	case KVM_REG_ARM_CORE_REG(elr_el1):
+		return "KVM_REG_ARM_CORE_REG(elr_el1)";
+	case KVM_REG_ARM_CORE_REG(spsr[0]) ...
+	     KVM_REG_ARM_CORE_REG(spsr[KVM_NR_SPSR - 1]):
+		idx = (core_off - KVM_REG_ARM_CORE_REG(spsr[0])) / CORE_SPSR_XX_NR_WORDS;
+		TEST_ASSERT(idx < KVM_NR_SPSR, "%s: Unexpected spsr index: %lld", prefix, idx);
+		return strdup_printf("KVM_REG_ARM_CORE_REG(spsr[%lld])", idx);
+	case KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]) ...
+	     KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]):
+		idx = (core_off - KVM_REG_ARM_CORE_REG(fp_regs.vregs[0])) / CORE_FPREGS_XX_NR_WORDS;
+		TEST_ASSERT(idx < 32, "%s: Unexpected fp_regs.vregs index: %lld", prefix, idx);
+		return strdup_printf("KVM_REG_ARM_CORE_REG(fp_regs.vregs[%lld])", idx);
+	case KVM_REG_ARM_CORE_REG(fp_regs.fpsr):
+		return "KVM_REG_ARM_CORE_REG(fp_regs.fpsr)";
+	case KVM_REG_ARM_CORE_REG(fp_regs.fpcr):
+		return "KVM_REG_ARM_CORE_REG(fp_regs.fpcr)";
+	}
+
+	TEST_FAIL("%s: Unknown core reg id: 0x%llx", prefix, id);
+	return NULL;
+}
+
+static const char *sve_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 sve_off, n, i;
+
+	if (id == KVM_REG_ARM64_SVE_VLS)
+		return "KVM_REG_ARM64_SVE_VLS";
+
+	sve_off = id & ~(REG_MASK | ((1ULL << 5) - 1));
+	i = id & (KVM_ARM64_SVE_MAX_SLICES - 1);
+
+	TEST_ASSERT(i == 0, "%s: Currently we don't expect slice > 0, reg id 0x%llx", prefix, id);
+
+	switch (sve_off) {
+	case KVM_REG_ARM64_SVE_ZREG_BASE ...
+	     KVM_REG_ARM64_SVE_ZREG_BASE + (1ULL << 5) * KVM_ARM64_SVE_NUM_ZREGS - 1:
+		n = (id >> 5) & (KVM_ARM64_SVE_NUM_ZREGS - 1);
+		TEST_ASSERT(id == KVM_REG_ARM64_SVE_ZREG(n, 0),
+			    "%s: Unexpected bits set in SVE ZREG id: 0x%llx", prefix, id);
+		return strdup_printf("KVM_REG_ARM64_SVE_ZREG(%lld, 0)", n);
+	case KVM_REG_ARM64_SVE_PREG_BASE ...
+	     KVM_REG_ARM64_SVE_PREG_BASE + (1ULL << 5) * KVM_ARM64_SVE_NUM_PREGS - 1:
+		n = (id >> 5) & (KVM_ARM64_SVE_NUM_PREGS - 1);
+		TEST_ASSERT(id == KVM_REG_ARM64_SVE_PREG(n, 0),
+			    "%s: Unexpected bits set in SVE PREG id: 0x%llx", prefix, id);
+		return strdup_printf("KVM_REG_ARM64_SVE_PREG(%lld, 0)", n);
+	case KVM_REG_ARM64_SVE_FFR_BASE:
+		TEST_ASSERT(id == KVM_REG_ARM64_SVE_FFR(0),
+			    "%s: Unexpected bits set in SVE FFR id: 0x%llx", prefix, id);
+		return "KVM_REG_ARM64_SVE_FFR(0)";
+	}
+
+	return NULL;
+}
+
+void print_reg(const char *prefix, __u64 id)
+{
+	unsigned op0, op1, crn, crm, op2;
+	const char *reg_size = NULL;
+
+	TEST_ASSERT((id & KVM_REG_ARCH_MASK) == KVM_REG_ARM64,
+		    "%s: KVM_REG_ARM64 missing in reg id: 0x%llx", prefix, id);
+
+	switch (id & KVM_REG_SIZE_MASK) {
+	case KVM_REG_SIZE_U8:
+		reg_size = "KVM_REG_SIZE_U8";
+		break;
+	case KVM_REG_SIZE_U16:
+		reg_size = "KVM_REG_SIZE_U16";
+		break;
+	case KVM_REG_SIZE_U32:
+		reg_size = "KVM_REG_SIZE_U32";
+		break;
+	case KVM_REG_SIZE_U64:
+		reg_size = "KVM_REG_SIZE_U64";
+		break;
+	case KVM_REG_SIZE_U128:
+		reg_size = "KVM_REG_SIZE_U128";
+		break;
+	case KVM_REG_SIZE_U256:
+		reg_size = "KVM_REG_SIZE_U256";
+		break;
+	case KVM_REG_SIZE_U512:
+		reg_size = "KVM_REG_SIZE_U512";
+		break;
+	case KVM_REG_SIZE_U1024:
+		reg_size = "KVM_REG_SIZE_U1024";
+		break;
+	case KVM_REG_SIZE_U2048:
+		reg_size = "KVM_REG_SIZE_U2048";
+		break;
+	default:
+		TEST_FAIL("%s: Unexpected reg size: 0x%llx in reg id: 0x%llx",
+			  prefix, (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id);
+	}
+
+	switch (id & KVM_REG_ARM_COPROC_MASK) {
+	case KVM_REG_ARM_CORE:
+		printf("\tKVM_REG_ARM64 | %s | KVM_REG_ARM_CORE | %s,\n", reg_size, core_id_to_str(prefix, id));
+		break;
+	case KVM_REG_ARM_DEMUX:
+		TEST_ASSERT(!(id & ~(REG_MASK | KVM_REG_ARM_DEMUX_ID_MASK | KVM_REG_ARM_DEMUX_VAL_MASK)),
+			    "%s: Unexpected bits set in DEMUX reg id: 0x%llx", prefix, id);
+		printf("\tKVM_REG_ARM64 | %s | KVM_REG_ARM_DEMUX | KVM_REG_ARM_DEMUX_ID_CCSIDR | %lld,\n",
+		       reg_size, id & KVM_REG_ARM_DEMUX_VAL_MASK);
+		break;
+	case KVM_REG_ARM64_SYSREG:
+		op0 = (id & KVM_REG_ARM64_SYSREG_OP0_MASK) >> KVM_REG_ARM64_SYSREG_OP0_SHIFT;
+		op1 = (id & KVM_REG_ARM64_SYSREG_OP1_MASK) >> KVM_REG_ARM64_SYSREG_OP1_SHIFT;
+		crn = (id & KVM_REG_ARM64_SYSREG_CRN_MASK) >> KVM_REG_ARM64_SYSREG_CRN_SHIFT;
+		crm = (id & KVM_REG_ARM64_SYSREG_CRM_MASK) >> KVM_REG_ARM64_SYSREG_CRM_SHIFT;
+		op2 = (id & KVM_REG_ARM64_SYSREG_OP2_MASK) >> KVM_REG_ARM64_SYSREG_OP2_SHIFT;
+		TEST_ASSERT(id == ARM64_SYS_REG(op0, op1, crn, crm, op2),
+			    "%s: Unexpected bits set in SYSREG reg id: 0x%llx", prefix, id);
+		printf("\tARM64_SYS_REG(%d, %d, %d, %d, %d),\n", op0, op1, crn, crm, op2);
+		break;
+	case KVM_REG_ARM_FW:
+		TEST_ASSERT(id == KVM_REG_ARM_FW_REG(id & 0xffff),
+			    "%s: Unexpected bits set in FW reg id: 0x%llx", prefix, id);
+		printf("\tKVM_REG_ARM_FW_REG(%lld),\n", id & 0xffff);
+		break;
+	case KVM_REG_ARM_FW_FEAT_BMAP:
+		TEST_ASSERT(id == KVM_REG_ARM_FW_FEAT_BMAP_REG(id & 0xffff),
+			    "%s: Unexpected bits set in the bitmap feature FW reg id: 0x%llx", prefix, id);
+		printf("\tKVM_REG_ARM_FW_FEAT_BMAP_REG(%lld),\n", id & 0xffff);
+		break;
+	case KVM_REG_ARM64_SVE:
+		printf("\t%s,\n", sve_id_to_str(prefix, id));
+		break;
+	default:
+		TEST_FAIL("%s: Unexpected coproc type: 0x%llx in reg id: 0x%llx",
+			  prefix, (id & KVM_REG_ARM_COPROC_MASK) >> KVM_REG_ARM_COPROC_SHIFT, id);
+	}
+}
+
+/*
+ * The original blessed list was primed with the output of kernel version
+ * v4.15 with --core-reg-fixup and then later updated with new registers.
+ * (The --core-reg-fixup option and it's fixup function have been removed
+ * from the test, as it's unlikely to use this type of test on a kernel
+ * older than v5.2.)
+ *
+ * The blessed list is up to date with kernel version v6.4 (or so we hope)
+ */
+static __u64 base_regs[] = {
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[0]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[1]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[2]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[3]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[4]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[5]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[6]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[7]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[8]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[9]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[10]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[11]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[12]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[13]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[14]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[15]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[16]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[17]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[18]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[19]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[20]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[21]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[22]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[23]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[24]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[25]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[26]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[27]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[28]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[29]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.regs[30]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.sp),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.pc),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(regs.pstate),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(sp_el1),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(elr_el1),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(spsr[0]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(spsr[1]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(spsr[2]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(spsr[3]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U64 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(spsr[4]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U32 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.fpsr),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U32 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.fpcr),
+	KVM_REG_ARM_FW_REG(0),		/* KVM_REG_ARM_PSCI_VERSION */
+	KVM_REG_ARM_FW_REG(1),		/* KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1 */
+	KVM_REG_ARM_FW_REG(2),		/* KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2 */
+	KVM_REG_ARM_FW_REG(3),		/* KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_3 */
+	KVM_REG_ARM_FW_FEAT_BMAP_REG(0),	/* KVM_REG_ARM_STD_BMAP */
+	KVM_REG_ARM_FW_FEAT_BMAP_REG(1),	/* KVM_REG_ARM_STD_HYP_BMAP */
+	KVM_REG_ARM_FW_FEAT_BMAP_REG(2),	/* KVM_REG_ARM_VENDOR_HYP_BMAP */
+	KVM_REG_ARM_FW_FEAT_BMAP_REG(3),	/* KVM_REG_ARM_VENDOR_HYP_BMAP_2 */
+
+	/*
+	 * EL0 Virtual Timer Registers
+	 *
+	 * WARNING:
+	 * KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT are not defined
+	 * with the appropriate register encodings.  Their values have been
+	 * accidentally swapped.  As this is set API, the definitions here
+	 * must be used, rather than ones derived from the encodings.
+	 */
+	KVM_ARM64_SYS_REG(SYS_CNTV_CTL_EL0),
+	KVM_REG_ARM_TIMER_CVAL,
+	KVM_REG_ARM_TIMER_CNT,
+
+	ARM64_SYS_REG(3, 0, 0, 0, 0),	/* MIDR_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 0, 6),	/* REVIDR_EL1 */
+	ARM64_SYS_REG(3, 1, 0, 0, 1),	/* CLIDR_EL1 */
+	ARM64_SYS_REG(3, 1, 0, 0, 7),	/* AIDR_EL1 */
+	ARM64_SYS_REG(3, 3, 0, 0, 1),	/* CTR_EL0 */
+	ARM64_SYS_REG(2, 0, 0, 0, 4),
+	ARM64_SYS_REG(2, 0, 0, 0, 5),
+	ARM64_SYS_REG(2, 0, 0, 0, 6),
+	ARM64_SYS_REG(2, 0, 0, 0, 7),
+	ARM64_SYS_REG(2, 0, 0, 1, 4),
+	ARM64_SYS_REG(2, 0, 0, 1, 5),
+	ARM64_SYS_REG(2, 0, 0, 1, 6),
+	ARM64_SYS_REG(2, 0, 0, 1, 7),
+	ARM64_SYS_REG(2, 0, 0, 2, 0),	/* MDCCINT_EL1 */
+	ARM64_SYS_REG(2, 0, 0, 2, 2),	/* MDSCR_EL1 */
+	ARM64_SYS_REG(2, 0, 0, 2, 4),
+	ARM64_SYS_REG(2, 0, 0, 2, 5),
+	ARM64_SYS_REG(2, 0, 0, 2, 6),
+	ARM64_SYS_REG(2, 0, 0, 2, 7),
+	ARM64_SYS_REG(2, 0, 0, 3, 4),
+	ARM64_SYS_REG(2, 0, 0, 3, 5),
+	ARM64_SYS_REG(2, 0, 0, 3, 6),
+	ARM64_SYS_REG(2, 0, 0, 3, 7),
+	ARM64_SYS_REG(2, 0, 0, 4, 4),
+	ARM64_SYS_REG(2, 0, 0, 4, 5),
+	ARM64_SYS_REG(2, 0, 0, 4, 6),
+	ARM64_SYS_REG(2, 0, 0, 4, 7),
+	ARM64_SYS_REG(2, 0, 0, 5, 4),
+	ARM64_SYS_REG(2, 0, 0, 5, 5),
+	ARM64_SYS_REG(2, 0, 0, 5, 6),
+	ARM64_SYS_REG(2, 0, 0, 5, 7),
+	ARM64_SYS_REG(2, 0, 0, 6, 4),
+	ARM64_SYS_REG(2, 0, 0, 6, 5),
+	ARM64_SYS_REG(2, 0, 0, 6, 6),
+	ARM64_SYS_REG(2, 0, 0, 6, 7),
+	ARM64_SYS_REG(2, 0, 0, 7, 4),
+	ARM64_SYS_REG(2, 0, 0, 7, 5),
+	ARM64_SYS_REG(2, 0, 0, 7, 6),
+	ARM64_SYS_REG(2, 0, 0, 7, 7),
+	ARM64_SYS_REG(2, 0, 0, 8, 4),
+	ARM64_SYS_REG(2, 0, 0, 8, 5),
+	ARM64_SYS_REG(2, 0, 0, 8, 6),
+	ARM64_SYS_REG(2, 0, 0, 8, 7),
+	ARM64_SYS_REG(2, 0, 0, 9, 4),
+	ARM64_SYS_REG(2, 0, 0, 9, 5),
+	ARM64_SYS_REG(2, 0, 0, 9, 6),
+	ARM64_SYS_REG(2, 0, 0, 9, 7),
+	ARM64_SYS_REG(2, 0, 0, 10, 4),
+	ARM64_SYS_REG(2, 0, 0, 10, 5),
+	ARM64_SYS_REG(2, 0, 0, 10, 6),
+	ARM64_SYS_REG(2, 0, 0, 10, 7),
+	ARM64_SYS_REG(2, 0, 0, 11, 4),
+	ARM64_SYS_REG(2, 0, 0, 11, 5),
+	ARM64_SYS_REG(2, 0, 0, 11, 6),
+	ARM64_SYS_REG(2, 0, 0, 11, 7),
+	ARM64_SYS_REG(2, 0, 0, 12, 4),
+	ARM64_SYS_REG(2, 0, 0, 12, 5),
+	ARM64_SYS_REG(2, 0, 0, 12, 6),
+	ARM64_SYS_REG(2, 0, 0, 12, 7),
+	ARM64_SYS_REG(2, 0, 0, 13, 4),
+	ARM64_SYS_REG(2, 0, 0, 13, 5),
+	ARM64_SYS_REG(2, 0, 0, 13, 6),
+	ARM64_SYS_REG(2, 0, 0, 13, 7),
+	ARM64_SYS_REG(2, 0, 0, 14, 4),
+	ARM64_SYS_REG(2, 0, 0, 14, 5),
+	ARM64_SYS_REG(2, 0, 0, 14, 6),
+	ARM64_SYS_REG(2, 0, 0, 14, 7),
+	ARM64_SYS_REG(2, 0, 0, 15, 4),
+	ARM64_SYS_REG(2, 0, 0, 15, 5),
+	ARM64_SYS_REG(2, 0, 0, 15, 6),
+	ARM64_SYS_REG(2, 0, 0, 15, 7),
+	ARM64_SYS_REG(2, 0, 1, 1, 4),	/* OSLSR_EL1 */
+	ARM64_SYS_REG(2, 4, 0, 7, 0),	/* DBGVCR32_EL2 */
+	ARM64_SYS_REG(3, 0, 0, 0, 5),	/* MPIDR_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 0),	/* ID_PFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 1),	/* ID_PFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 2),	/* ID_DFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 3),	/* ID_AFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 4),	/* ID_MMFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 5),	/* ID_MMFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 6),	/* ID_MMFR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 1, 7),	/* ID_MMFR3_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 0),	/* ID_ISAR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 1),	/* ID_ISAR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 2),	/* ID_ISAR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 3),	/* ID_ISAR3_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 4),	/* ID_ISAR4_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 5),	/* ID_ISAR5_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 6),	/* ID_MMFR4_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 2, 7),	/* ID_ISAR6_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 0),	/* MVFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 1),	/* MVFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 2),	/* MVFR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 3),
+	ARM64_SYS_REG(3, 0, 0, 3, 4),	/* ID_PFR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 5),	/* ID_DFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 6),	/* ID_MMFR5_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 3, 7),
+	ARM64_SYS_REG(3, 0, 0, 4, 0),	/* ID_AA64PFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 4, 1),	/* ID_AA64PFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 4, 2),	/* ID_AA64PFR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 4, 3),
+	ARM64_SYS_REG(3, 0, 0, 4, 4),	/* ID_AA64ZFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 4, 5),	/* ID_AA64SMFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 4, 6),
+	ARM64_SYS_REG(3, 0, 0, 4, 7),
+	ARM64_SYS_REG(3, 0, 0, 5, 0),	/* ID_AA64DFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 5, 1),	/* ID_AA64DFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 5, 2),
+	ARM64_SYS_REG(3, 0, 0, 5, 3),
+	ARM64_SYS_REG(3, 0, 0, 5, 4),	/* ID_AA64AFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 5, 5),	/* ID_AA64AFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 5, 6),
+	ARM64_SYS_REG(3, 0, 0, 5, 7),
+	ARM64_SYS_REG(3, 0, 0, 6, 0),	/* ID_AA64ISAR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 6, 1),	/* ID_AA64ISAR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 6, 2),	/* ID_AA64ISAR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 6, 3),
+	ARM64_SYS_REG(3, 0, 0, 6, 4),
+	ARM64_SYS_REG(3, 0, 0, 6, 5),
+	ARM64_SYS_REG(3, 0, 0, 6, 6),
+	ARM64_SYS_REG(3, 0, 0, 6, 7),
+	ARM64_SYS_REG(3, 0, 0, 7, 0),	/* ID_AA64MMFR0_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 1),	/* ID_AA64MMFR1_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 2),	/* ID_AA64MMFR2_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 3),	/* ID_AA64MMFR3_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 4),	/* ID_AA64MMFR4_EL1 */
+	ARM64_SYS_REG(3, 0, 0, 7, 5),
+	ARM64_SYS_REG(3, 0, 0, 7, 6),
+	ARM64_SYS_REG(3, 0, 0, 7, 7),
+	ARM64_SYS_REG(3, 0, 1, 0, 0),	/* SCTLR_EL1 */
+	ARM64_SYS_REG(3, 0, 1, 0, 1),	/* ACTLR_EL1 */
+	ARM64_SYS_REG(3, 0, 1, 0, 2),	/* CPACR_EL1 */
+	KVM_ARM64_SYS_REG(SYS_SCTLR2_EL1),
+	ARM64_SYS_REG(3, 0, 2, 0, 0),	/* TTBR0_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 0, 1),	/* TTBR1_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 0, 2),	/* TCR_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 0, 3),	/* TCR2_EL1 */
+	ARM64_SYS_REG(3, 0, 5, 1, 0),	/* AFSR0_EL1 */
+	ARM64_SYS_REG(3, 0, 5, 1, 1),	/* AFSR1_EL1 */
+	ARM64_SYS_REG(3, 0, 5, 2, 0),	/* ESR_EL1 */
+	ARM64_SYS_REG(3, 0, 6, 0, 0),	/* FAR_EL1 */
+	ARM64_SYS_REG(3, 0, 7, 4, 0),	/* PAR_EL1 */
+	ARM64_SYS_REG(3, 0, 10, 2, 0),	/* MAIR_EL1 */
+	ARM64_SYS_REG(3, 0, 10, 2, 2),	/* PIRE0_EL1 */
+	ARM64_SYS_REG(3, 0, 10, 2, 3),	/* PIR_EL1 */
+	ARM64_SYS_REG(3, 0, 10, 2, 4),	/* POR_EL1 */
+	ARM64_SYS_REG(3, 0, 10, 3, 0),	/* AMAIR_EL1 */
+	ARM64_SYS_REG(3, 0, 12, 0, 0),	/* VBAR_EL1 */
+	ARM64_SYS_REG(3, 0, 12, 1, 1),	/* DISR_EL1 */
+	ARM64_SYS_REG(3, 0, 13, 0, 1),	/* CONTEXTIDR_EL1 */
+	ARM64_SYS_REG(3, 0, 13, 0, 4),	/* TPIDR_EL1 */
+	ARM64_SYS_REG(3, 0, 14, 1, 0),	/* CNTKCTL_EL1 */
+	ARM64_SYS_REG(3, 2, 0, 0, 0),	/* CSSELR_EL1 */
+	ARM64_SYS_REG(3, 3, 10, 2, 4),	/* POR_EL0 */
+	ARM64_SYS_REG(3, 3, 13, 0, 2),	/* TPIDR_EL0 */
+	ARM64_SYS_REG(3, 3, 13, 0, 3),	/* TPIDRRO_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 0, 1),	/* CNTPCT_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 2, 1),	/* CNTP_CTL_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 2, 2),	/* CNTP_CVAL_EL0 */
+	ARM64_SYS_REG(3, 4, 3, 0, 0),	/* DACR32_EL2 */
+	ARM64_SYS_REG(3, 4, 5, 0, 1),	/* IFSR32_EL2 */
+	ARM64_SYS_REG(3, 4, 5, 3, 0),	/* FPEXC32_EL2 */
+};
+
+static __u64 pmu_regs[] = {
+	ARM64_SYS_REG(3, 0, 9, 14, 1),	/* PMINTENSET_EL1 */
+	ARM64_SYS_REG(3, 0, 9, 14, 2),	/* PMINTENCLR_EL1 */
+	ARM64_SYS_REG(3, 3, 9, 12, 0),	/* PMCR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 12, 1),	/* PMCNTENSET_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 12, 2),	/* PMCNTENCLR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 12, 3),	/* PMOVSCLR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 12, 4),	/* PMSWINC_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 12, 5),	/* PMSELR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 13, 0),	/* PMCCNTR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 14, 0),	/* PMUSERENR_EL0 */
+	ARM64_SYS_REG(3, 3, 9, 14, 3),	/* PMOVSSET_EL0 */
+	ARM64_SYS_REG(3, 3, 14, 8, 0),
+	ARM64_SYS_REG(3, 3, 14, 8, 1),
+	ARM64_SYS_REG(3, 3, 14, 8, 2),
+	ARM64_SYS_REG(3, 3, 14, 8, 3),
+	ARM64_SYS_REG(3, 3, 14, 8, 4),
+	ARM64_SYS_REG(3, 3, 14, 8, 5),
+	ARM64_SYS_REG(3, 3, 14, 8, 6),
+	ARM64_SYS_REG(3, 3, 14, 8, 7),
+	ARM64_SYS_REG(3, 3, 14, 9, 0),
+	ARM64_SYS_REG(3, 3, 14, 9, 1),
+	ARM64_SYS_REG(3, 3, 14, 9, 2),
+	ARM64_SYS_REG(3, 3, 14, 9, 3),
+	ARM64_SYS_REG(3, 3, 14, 9, 4),
+	ARM64_SYS_REG(3, 3, 14, 9, 5),
+	ARM64_SYS_REG(3, 3, 14, 9, 6),
+	ARM64_SYS_REG(3, 3, 14, 9, 7),
+	ARM64_SYS_REG(3, 3, 14, 10, 0),
+	ARM64_SYS_REG(3, 3, 14, 10, 1),
+	ARM64_SYS_REG(3, 3, 14, 10, 2),
+	ARM64_SYS_REG(3, 3, 14, 10, 3),
+	ARM64_SYS_REG(3, 3, 14, 10, 4),
+	ARM64_SYS_REG(3, 3, 14, 10, 5),
+	ARM64_SYS_REG(3, 3, 14, 10, 6),
+	ARM64_SYS_REG(3, 3, 14, 10, 7),
+	ARM64_SYS_REG(3, 3, 14, 11, 0),
+	ARM64_SYS_REG(3, 3, 14, 11, 1),
+	ARM64_SYS_REG(3, 3, 14, 11, 2),
+	ARM64_SYS_REG(3, 3, 14, 11, 3),
+	ARM64_SYS_REG(3, 3, 14, 11, 4),
+	ARM64_SYS_REG(3, 3, 14, 11, 5),
+	ARM64_SYS_REG(3, 3, 14, 11, 6),
+	ARM64_SYS_REG(3, 3, 14, 12, 0),
+	ARM64_SYS_REG(3, 3, 14, 12, 1),
+	ARM64_SYS_REG(3, 3, 14, 12, 2),
+	ARM64_SYS_REG(3, 3, 14, 12, 3),
+	ARM64_SYS_REG(3, 3, 14, 12, 4),
+	ARM64_SYS_REG(3, 3, 14, 12, 5),
+	ARM64_SYS_REG(3, 3, 14, 12, 6),
+	ARM64_SYS_REG(3, 3, 14, 12, 7),
+	ARM64_SYS_REG(3, 3, 14, 13, 0),
+	ARM64_SYS_REG(3, 3, 14, 13, 1),
+	ARM64_SYS_REG(3, 3, 14, 13, 2),
+	ARM64_SYS_REG(3, 3, 14, 13, 3),
+	ARM64_SYS_REG(3, 3, 14, 13, 4),
+	ARM64_SYS_REG(3, 3, 14, 13, 5),
+	ARM64_SYS_REG(3, 3, 14, 13, 6),
+	ARM64_SYS_REG(3, 3, 14, 13, 7),
+	ARM64_SYS_REG(3, 3, 14, 14, 0),
+	ARM64_SYS_REG(3, 3, 14, 14, 1),
+	ARM64_SYS_REG(3, 3, 14, 14, 2),
+	ARM64_SYS_REG(3, 3, 14, 14, 3),
+	ARM64_SYS_REG(3, 3, 14, 14, 4),
+	ARM64_SYS_REG(3, 3, 14, 14, 5),
+	ARM64_SYS_REG(3, 3, 14, 14, 6),
+	ARM64_SYS_REG(3, 3, 14, 14, 7),
+	ARM64_SYS_REG(3, 3, 14, 15, 0),
+	ARM64_SYS_REG(3, 3, 14, 15, 1),
+	ARM64_SYS_REG(3, 3, 14, 15, 2),
+	ARM64_SYS_REG(3, 3, 14, 15, 3),
+	ARM64_SYS_REG(3, 3, 14, 15, 4),
+	ARM64_SYS_REG(3, 3, 14, 15, 5),
+	ARM64_SYS_REG(3, 3, 14, 15, 6),
+	ARM64_SYS_REG(3, 3, 14, 15, 7),	/* PMCCFILTR_EL0 */
+};
+
+static __u64 vregs[] = {
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[0]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[1]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[2]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[3]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[4]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[5]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[6]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[7]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[8]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[9]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[10]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[11]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[12]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[13]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[14]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[15]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[16]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[17]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[18]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[19]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[20]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[21]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[22]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[23]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[24]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[25]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[26]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[27]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[28]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[29]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[30]),
+	KVM_REG_ARM64 | KVM_REG_SIZE_U128 | KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(fp_regs.vregs[31]),
+};
+
+static __u64 sve_regs[] = {
+	KVM_REG_ARM64_SVE_VLS,
+	KVM_REG_ARM64_SVE_ZREG(0, 0),
+	KVM_REG_ARM64_SVE_ZREG(1, 0),
+	KVM_REG_ARM64_SVE_ZREG(2, 0),
+	KVM_REG_ARM64_SVE_ZREG(3, 0),
+	KVM_REG_ARM64_SVE_ZREG(4, 0),
+	KVM_REG_ARM64_SVE_ZREG(5, 0),
+	KVM_REG_ARM64_SVE_ZREG(6, 0),
+	KVM_REG_ARM64_SVE_ZREG(7, 0),
+	KVM_REG_ARM64_SVE_ZREG(8, 0),
+	KVM_REG_ARM64_SVE_ZREG(9, 0),
+	KVM_REG_ARM64_SVE_ZREG(10, 0),
+	KVM_REG_ARM64_SVE_ZREG(11, 0),
+	KVM_REG_ARM64_SVE_ZREG(12, 0),
+	KVM_REG_ARM64_SVE_ZREG(13, 0),
+	KVM_REG_ARM64_SVE_ZREG(14, 0),
+	KVM_REG_ARM64_SVE_ZREG(15, 0),
+	KVM_REG_ARM64_SVE_ZREG(16, 0),
+	KVM_REG_ARM64_SVE_ZREG(17, 0),
+	KVM_REG_ARM64_SVE_ZREG(18, 0),
+	KVM_REG_ARM64_SVE_ZREG(19, 0),
+	KVM_REG_ARM64_SVE_ZREG(20, 0),
+	KVM_REG_ARM64_SVE_ZREG(21, 0),
+	KVM_REG_ARM64_SVE_ZREG(22, 0),
+	KVM_REG_ARM64_SVE_ZREG(23, 0),
+	KVM_REG_ARM64_SVE_ZREG(24, 0),
+	KVM_REG_ARM64_SVE_ZREG(25, 0),
+	KVM_REG_ARM64_SVE_ZREG(26, 0),
+	KVM_REG_ARM64_SVE_ZREG(27, 0),
+	KVM_REG_ARM64_SVE_ZREG(28, 0),
+	KVM_REG_ARM64_SVE_ZREG(29, 0),
+	KVM_REG_ARM64_SVE_ZREG(30, 0),
+	KVM_REG_ARM64_SVE_ZREG(31, 0),
+	KVM_REG_ARM64_SVE_PREG(0, 0),
+	KVM_REG_ARM64_SVE_PREG(1, 0),
+	KVM_REG_ARM64_SVE_PREG(2, 0),
+	KVM_REG_ARM64_SVE_PREG(3, 0),
+	KVM_REG_ARM64_SVE_PREG(4, 0),
+	KVM_REG_ARM64_SVE_PREG(5, 0),
+	KVM_REG_ARM64_SVE_PREG(6, 0),
+	KVM_REG_ARM64_SVE_PREG(7, 0),
+	KVM_REG_ARM64_SVE_PREG(8, 0),
+	KVM_REG_ARM64_SVE_PREG(9, 0),
+	KVM_REG_ARM64_SVE_PREG(10, 0),
+	KVM_REG_ARM64_SVE_PREG(11, 0),
+	KVM_REG_ARM64_SVE_PREG(12, 0),
+	KVM_REG_ARM64_SVE_PREG(13, 0),
+	KVM_REG_ARM64_SVE_PREG(14, 0),
+	KVM_REG_ARM64_SVE_PREG(15, 0),
+	KVM_REG_ARM64_SVE_FFR(0),
+	ARM64_SYS_REG(3, 0, 1, 2, 0),   /* ZCR_EL1 */
+};
+
+static __u64 sve_rejects_set[] = {
+	KVM_REG_ARM64_SVE_VLS,
+};
+
+static __u64 pauth_addr_regs[] = {
+	ARM64_SYS_REG(3, 0, 2, 1, 0),	/* APIAKEYLO_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 1, 1),	/* APIAKEYHI_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 1, 2),	/* APIBKEYLO_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 1, 3),	/* APIBKEYHI_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 2, 0),	/* APDAKEYLO_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 2, 1),	/* APDAKEYHI_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 2, 2),	/* APDBKEYLO_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 2, 3)	/* APDBKEYHI_EL1 */
+};
+
+static __u64 pauth_generic_regs[] = {
+	ARM64_SYS_REG(3, 0, 2, 3, 0),	/* APGAKEYLO_EL1 */
+	ARM64_SYS_REG(3, 0, 2, 3, 1),	/* APGAKEYHI_EL1 */
+};
+
+static __u64 el2_regs[] = {
+	SYS_REG(VPIDR_EL2),
+	SYS_REG(VMPIDR_EL2),
+	SYS_REG(SCTLR_EL2),
+	SYS_REG(ACTLR_EL2),
+	SYS_REG(SCTLR2_EL2),
+	SYS_REG(HCR_EL2),
+	SYS_REG(MDCR_EL2),
+	SYS_REG(CPTR_EL2),
+	SYS_REG(HSTR_EL2),
+	SYS_REG(HFGRTR_EL2),
+	SYS_REG(HFGWTR_EL2),
+	SYS_REG(HFGITR_EL2),
+	SYS_REG(HACR_EL2),
+	SYS_REG(ZCR_EL2),
+	SYS_REG(HCRX_EL2),
+	SYS_REG(TTBR0_EL2),
+	SYS_REG(TTBR1_EL2),
+	SYS_REG(TCR_EL2),
+	SYS_REG(TCR2_EL2),
+	SYS_REG(VTTBR_EL2),
+	SYS_REG(VTCR_EL2),
+	SYS_REG(VNCR_EL2),
+	SYS_REG(HDFGRTR2_EL2),
+	SYS_REG(HDFGWTR2_EL2),
+	SYS_REG(HFGRTR2_EL2),
+	SYS_REG(HFGWTR2_EL2),
+	SYS_REG(HDFGRTR_EL2),
+	SYS_REG(HDFGWTR_EL2),
+	SYS_REG(HAFGRTR_EL2),
+	SYS_REG(HFGITR2_EL2),
+	SYS_REG(SPSR_EL2),
+	SYS_REG(ELR_EL2),
+	SYS_REG(AFSR0_EL2),
+	SYS_REG(AFSR1_EL2),
+	SYS_REG(ESR_EL2),
+	SYS_REG(FAR_EL2),
+	SYS_REG(HPFAR_EL2),
+	SYS_REG(MAIR_EL2),
+	SYS_REG(PIRE0_EL2),
+	SYS_REG(PIR_EL2),
+	SYS_REG(POR_EL2),
+	SYS_REG(AMAIR_EL2),
+	SYS_REG(VBAR_EL2),
+	SYS_REG(CONTEXTIDR_EL2),
+	SYS_REG(TPIDR_EL2),
+	SYS_REG(CNTVOFF_EL2),
+	SYS_REG(CNTHCTL_EL2),
+	SYS_REG(CNTHP_CTL_EL2),
+	SYS_REG(CNTHP_CVAL_EL2),
+	SYS_REG(CNTHV_CTL_EL2),
+	SYS_REG(CNTHV_CVAL_EL2),
+	SYS_REG(SP_EL2),
+	SYS_REG(VDISR_EL2),
+	SYS_REG(VSESR_EL2),
+};
+
+static __u64 el2_e2h0_regs[] = {
+	/* Empty */
+};
+
+#define BASE_SUBLIST \
+	{ "base", .regs = base_regs, .regs_n = ARRAY_SIZE(base_regs), }
+#define VREGS_SUBLIST \
+	{ "vregs", .regs = vregs, .regs_n = ARRAY_SIZE(vregs), }
+#define PMU_SUBLIST \
+	{ "pmu", .capability = KVM_CAP_ARM_PMU_V3, .feature = KVM_ARM_VCPU_PMU_V3, \
+	  .regs = pmu_regs, .regs_n = ARRAY_SIZE(pmu_regs), }
+#define SVE_SUBLIST \
+	{ "sve", .capability = KVM_CAP_ARM_SVE, .feature = KVM_ARM_VCPU_SVE, .finalize = true, \
+	  .regs = sve_regs, .regs_n = ARRAY_SIZE(sve_regs), \
+	  .rejects_set = sve_rejects_set, .rejects_set_n = ARRAY_SIZE(sve_rejects_set), }
+#define PAUTH_SUBLIST							\
+	{								\
+		.name 		= "pauth_address",			\
+		.capability	= KVM_CAP_ARM_PTRAUTH_ADDRESS,		\
+		.feature	= KVM_ARM_VCPU_PTRAUTH_ADDRESS,		\
+		.regs		= pauth_addr_regs,			\
+		.regs_n		= ARRAY_SIZE(pauth_addr_regs),		\
+	},								\
+	{								\
+		.name 		= "pauth_generic",			\
+		.capability	= KVM_CAP_ARM_PTRAUTH_GENERIC,		\
+		.feature	= KVM_ARM_VCPU_PTRAUTH_GENERIC,		\
+		.regs		= pauth_generic_regs,			\
+		.regs_n		= ARRAY_SIZE(pauth_generic_regs),	\
+	}
+#define EL2_SUBLIST						\
+	{							\
+		.name 		= "EL2",			\
+		.capability	= KVM_CAP_ARM_EL2,		\
+		.feature	= KVM_ARM_VCPU_HAS_EL2,		\
+		.regs		= el2_regs,			\
+		.regs_n		= ARRAY_SIZE(el2_regs),		\
+	}
+#define EL2_E2H0_SUBLIST					\
+	EL2_SUBLIST,						\
+	{							\
+		.name 		= "EL2 E2H0",			\
+		.capability	= KVM_CAP_ARM_EL2_E2H0,		\
+		.feature	= KVM_ARM_VCPU_HAS_EL2_E2H0,	\
+		.regs		= el2_e2h0_regs,		\
+		.regs_n		= ARRAY_SIZE(el2_e2h0_regs),	\
+	}
+
+static struct vcpu_reg_list vregs_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	VREGS_SUBLIST,
+	{0},
+	},
+};
+static struct vcpu_reg_list vregs_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	VREGS_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+static struct vcpu_reg_list sve_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	SVE_SUBLIST,
+	{0},
+	},
+};
+static struct vcpu_reg_list sve_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	SVE_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+static struct vcpu_reg_list pauth_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	{0},
+	},
+};
+static struct vcpu_reg_list pauth_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_vregs_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	VREGS_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_vregs_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	VREGS_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_sve_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	SVE_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_sve_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	SVE_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_pauth_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_pauth_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_vregs_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	VREGS_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_vregs_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	VREGS_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_sve_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	SVE_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_sve_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	SVE_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_pauth_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	{0},
+	},
+};
+
+static struct vcpu_reg_list el2_e2h0_pauth_pmu_config = {
+	.sublists = {
+	BASE_SUBLIST,
+	EL2_E2H0_SUBLIST,
+	VREGS_SUBLIST,
+	PAUTH_SUBLIST,
+	PMU_SUBLIST,
+	{0},
+	},
+};
+
+struct vcpu_reg_list *vcpu_configs[] = {
+	&vregs_config,
+	&vregs_pmu_config,
+	&sve_config,
+	&sve_pmu_config,
+	&pauth_config,
+	&pauth_pmu_config,
+
+	&el2_vregs_config,
+	&el2_vregs_pmu_config,
+	&el2_sve_config,
+	&el2_sve_pmu_config,
+	&el2_pauth_config,
+	&el2_pauth_pmu_config,
+
+	&el2_e2h0_vregs_config,
+	&el2_e2h0_vregs_pmu_config,
+	&el2_e2h0_sve_config,
+	&el2_e2h0_sve_pmu_config,
+	&el2_e2h0_pauth_config,
+	&el2_e2h0_pauth_pmu_config,
+};
+int vcpu_configs_n = ARRAY_SIZE(vcpu_configs);
diff --git a/tools/testing/selftests/kvm/arm64/hello_el2.c b/tools/testing/selftests/kvm/arm64/hello_el2.c
new file mode 100644
index 000000000000..bbe6862c6ab1
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/hello_el2.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * hello_el2 - Basic KVM selftest for VM running at EL2 with E2H=RES1
+ *
+ * Copyright 2025 Google LLC
+ */
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+#include "ucall.h"
+
+#include <asm/sysreg.h>
+
+static void guest_code(void)
+{
+	u64 mmfr0 = read_sysreg_s(SYS_ID_AA64MMFR0_EL1);
+	u64 mmfr1 = read_sysreg_s(SYS_ID_AA64MMFR1_EL1);
+	u64 mmfr4 = read_sysreg_s(SYS_ID_AA64MMFR4_EL1);
+	u8 e2h0 = SYS_FIELD_GET(ID_AA64MMFR4_EL1, E2H0, mmfr4);
+
+	GUEST_ASSERT_EQ(get_current_el(), 2);
+	GUEST_ASSERT(read_sysreg(hcr_el2) & HCR_EL2_E2H);
+	GUEST_ASSERT_EQ(SYS_FIELD_GET(ID_AA64MMFR1_EL1, VH, mmfr1),
+			ID_AA64MMFR1_EL1_VH_IMP);
+
+	/*
+	 * Traps of the complete ID register space are IMPDEF without FEAT_FGT,
+	 * which is really annoying to deal with in KVM describing E2H as RES1.
+	 *
+	 * If the implementation doesn't honor the trap then expect the register
+	 * to return all zeros.
+	 */
+	if (e2h0 == ID_AA64MMFR4_EL1_E2H0_IMP)
+		GUEST_ASSERT_EQ(SYS_FIELD_GET(ID_AA64MMFR0_EL1, FGT, mmfr0),
+				ID_AA64MMFR0_EL1_FGT_NI);
+	else
+		GUEST_ASSERT_EQ(e2h0, ID_AA64MMFR4_EL1_E2H0_NI_NV1);
+
+	GUEST_DONE();
+}
+
+int main(void)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_ARM_EL2));
+
+	vm = vm_create(1);
+
+	kvm_get_default_vcpu_target(vm, &init);
+	init.features[0] |= BIT(KVM_ARM_VCPU_HAS_EL2);
+	vcpu = aarch64_vcpu_add(vm, 0, &init, guest_code);
+	kvm_arch_vm_finalize_vcpus(vm);
+
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_DONE:
+		break;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	default:
+		TEST_FAIL("Unhandled ucall: %ld\n", uc.cmd);
+	}
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/host_sve.c b/tools/testing/selftests/kvm/arm64/host_sve.c
new file mode 100644
index 000000000000..3826772fd470
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/host_sve.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Host SVE: Check FPSIMD/SVE/SME save/restore over KVM_RUN ioctls.
+ *
+ * Copyright 2025 Arm, Ltd
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <sys/auxv.h>
+#include <asm/kvm.h>
+#include <kvm_util.h>
+
+#include "ucall_common.h"
+
+static void guest_code(void)
+{
+	for (int i = 0; i < 10; i++) {
+		GUEST_UCALL_NONE();
+	}
+
+	GUEST_DONE();
+}
+
+void handle_sigill(int sig, siginfo_t *info, void *ctx)
+{
+	ucontext_t *uctx = ctx;
+
+	printf("  < host signal %d >\n", sig);
+
+	/*
+	 * Skip the UDF
+	 */
+	uctx->uc_mcontext.pc += 4;
+}
+
+void register_sigill_handler(void)
+{
+	struct sigaction sa = {
+		.sa_sigaction = handle_sigill,
+		.sa_flags = SA_SIGINFO,
+	};
+	sigaction(SIGILL, &sa, NULL);
+}
+
+static void do_sve_roundtrip(void)
+{
+	unsigned long before, after;
+
+	/*
+	 * Set all bits in a predicate register, force a save/restore via a
+	 * SIGILL (which handle_sigill() will recover from), then report
+	 * whether the value has changed.
+	 */
+	asm volatile(
+	"	.arch_extension sve\n"
+	"	ptrue	p0.B\n"
+	"	cntp	%[before], p0, p0.B\n"
+	"	udf #0\n"
+	"	cntp	%[after], p0, p0.B\n"
+	: [before] "=r" (before),
+	  [after] "=r" (after)
+	:
+	: "p0"
+	);
+
+	if (before != after) {
+		TEST_FAIL("Signal roundtrip discarded predicate bits (%ld => %ld)\n",
+			  before, after);
+	} else {
+		printf("Signal roundtrip preserved predicate bits (%ld => %ld)\n",
+		       before, after);
+	}
+}
+
+static void test_run(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	bool guest_done = false;
+
+	register_sigill_handler();
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	do_sve_roundtrip();
+
+	while (!guest_done) {
+
+		printf("Running VCPU...\n");
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_NONE:
+			do_sve_roundtrip();
+			do_sve_roundtrip();
+			break;
+		case UCALL_DONE:
+			guest_done = true;
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		default:
+			TEST_FAIL("Unexpected guest exit");
+		}
+	}
+
+	kvm_vm_free(vm);
+}
+
+int main(void)
+{
+	/*
+	 * This is testing the host environment, we don't care about
+	 * guest SVE support.
+	 */
+	if (!(getauxval(AT_HWCAP) & HWCAP_SVE)) {
+		printf("SVE not supported\n");
+		return KSFT_SKIP;
+	}
+
+	test_run();
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/hypercalls.c b/tools/testing/selftests/kvm/arm64/hypercalls.c
new file mode 100644
index 000000000000..bf038a0371f4
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/hypercalls.c
@@ -0,0 +1,334 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/* hypercalls: Check the ARM64's psuedo-firmware bitmap register interface.
+ *
+ * The test validates the basic hypercall functionalities that are exposed
+ * via the psuedo-firmware bitmap register. This includes the registers'
+ * read/write behavior before and after the VM has started, and if the
+ * hypercalls are properly masked or unmasked to the guest when disabled or
+ * enabled from the KVM userspace, respectively.
+ */
+#include <errno.h>
+#include <linux/arm-smccc.h>
+#include <asm/kvm.h>
+#include <kvm_util.h>
+
+#include "processor.h"
+
+#define FW_REG_ULIMIT_VAL(max_feat_bit) (GENMASK(max_feat_bit, 0))
+
+/* Last valid bits of the bitmapped firmware registers */
+#define KVM_REG_ARM_STD_BMAP_BIT_MAX		0
+#define KVM_REG_ARM_STD_HYP_BMAP_BIT_MAX	0
+#define KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_MAX	1
+#define KVM_REG_ARM_VENDOR_HYP_BMAP_2_BIT_MAX   1
+
+#define KVM_REG_ARM_STD_BMAP_RESET_VAL		FW_REG_ULIMIT_VAL(KVM_REG_ARM_STD_BMAP_BIT_MAX)
+#define KVM_REG_ARM_STD_HYP_BMAP_RESET_VAL	FW_REG_ULIMIT_VAL(KVM_REG_ARM_STD_HYP_BMAP_BIT_MAX)
+#define KVM_REG_ARM_VENDOR_HYP_BMAP_RESET_VAL	FW_REG_ULIMIT_VAL(KVM_REG_ARM_VENDOR_HYP_BMAP_BIT_MAX)
+#define KVM_REG_ARM_VENDOR_HYP_BMAP_2_RESET_VAL 0
+
+struct kvm_fw_reg_info {
+	uint64_t reg;		/* Register definition */
+	uint64_t max_feat_bit;	/* Bit that represents the upper limit of the feature-map */
+	uint64_t reset_val;	/* Reset value for the register */
+};
+
+#define FW_REG_INFO(r)			\
+	{					\
+		.reg = r,			\
+		.max_feat_bit = r##_BIT_MAX,	\
+		.reset_val = r##_RESET_VAL	\
+	}
+
+static const struct kvm_fw_reg_info fw_reg_info[] = {
+	FW_REG_INFO(KVM_REG_ARM_STD_BMAP),
+	FW_REG_INFO(KVM_REG_ARM_STD_HYP_BMAP),
+	FW_REG_INFO(KVM_REG_ARM_VENDOR_HYP_BMAP),
+	FW_REG_INFO(KVM_REG_ARM_VENDOR_HYP_BMAP_2),
+};
+
+enum test_stage {
+	TEST_STAGE_REG_IFACE,
+	TEST_STAGE_HVC_IFACE_FEAT_DISABLED,
+	TEST_STAGE_HVC_IFACE_FEAT_ENABLED,
+	TEST_STAGE_HVC_IFACE_FALSE_INFO,
+	TEST_STAGE_END,
+};
+
+static int stage = TEST_STAGE_REG_IFACE;
+
+struct test_hvc_info {
+	uint32_t func_id;
+	uint64_t arg1;
+};
+
+#define TEST_HVC_INFO(f, a1)	\
+	{			\
+		.func_id = f,	\
+		.arg1 = a1,	\
+	}
+
+static const struct test_hvc_info hvc_info[] = {
+	/* KVM_REG_ARM_STD_BMAP */
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_VERSION, 0),
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_FEATURES, ARM_SMCCC_TRNG_RND64),
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_GET_UUID, 0),
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_RND32, 0),
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_RND64, 0),
+
+	/* KVM_REG_ARM_STD_HYP_BMAP */
+	TEST_HVC_INFO(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, ARM_SMCCC_HV_PV_TIME_FEATURES),
+	TEST_HVC_INFO(ARM_SMCCC_HV_PV_TIME_FEATURES, ARM_SMCCC_HV_PV_TIME_ST),
+	TEST_HVC_INFO(ARM_SMCCC_HV_PV_TIME_ST, 0),
+
+	/* KVM_REG_ARM_VENDOR_HYP_BMAP */
+	TEST_HVC_INFO(ARM_SMCCC_VENDOR_HYP_KVM_FEATURES_FUNC_ID,
+			ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID),
+	TEST_HVC_INFO(ARM_SMCCC_VENDOR_HYP_CALL_UID_FUNC_ID, 0),
+	TEST_HVC_INFO(ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID, KVM_PTP_VIRT_COUNTER),
+};
+
+/* Feed false hypercall info to test the KVM behavior */
+static const struct test_hvc_info false_hvc_info[] = {
+	/* Feature support check against a different family of hypercalls */
+	TEST_HVC_INFO(ARM_SMCCC_TRNG_FEATURES, ARM_SMCCC_VENDOR_HYP_KVM_PTP_FUNC_ID),
+	TEST_HVC_INFO(ARM_SMCCC_ARCH_FEATURES_FUNC_ID, ARM_SMCCC_TRNG_RND64),
+	TEST_HVC_INFO(ARM_SMCCC_HV_PV_TIME_FEATURES, ARM_SMCCC_TRNG_RND64),
+};
+
+static void guest_test_hvc(const struct test_hvc_info *hc_info)
+{
+	unsigned int i;
+	struct arm_smccc_res res;
+	unsigned int hvc_info_arr_sz;
+
+	hvc_info_arr_sz =
+	hc_info == hvc_info ? ARRAY_SIZE(hvc_info) : ARRAY_SIZE(false_hvc_info);
+
+	for (i = 0; i < hvc_info_arr_sz; i++, hc_info++) {
+		memset(&res, 0, sizeof(res));
+		do_smccc(hc_info->func_id, hc_info->arg1, 0, 0, 0, 0, 0, 0, &res);
+
+		switch (stage) {
+		case TEST_STAGE_HVC_IFACE_FEAT_DISABLED:
+		case TEST_STAGE_HVC_IFACE_FALSE_INFO:
+			__GUEST_ASSERT(res.a0 == SMCCC_RET_NOT_SUPPORTED,
+				       "a0 = 0x%lx, func_id = 0x%x, arg1 = 0x%lx, stage = %u",
+					res.a0, hc_info->func_id, hc_info->arg1, stage);
+			break;
+		case TEST_STAGE_HVC_IFACE_FEAT_ENABLED:
+			__GUEST_ASSERT(res.a0 != SMCCC_RET_NOT_SUPPORTED,
+				       "a0 = 0x%lx, func_id = 0x%x, arg1 = 0x%lx, stage = %u",
+					res.a0, hc_info->func_id, hc_info->arg1, stage);
+			break;
+		default:
+			GUEST_FAIL("Unexpected stage = %u", stage);
+		}
+	}
+}
+
+static void guest_code(void)
+{
+	while (stage != TEST_STAGE_END) {
+		switch (stage) {
+		case TEST_STAGE_REG_IFACE:
+			break;
+		case TEST_STAGE_HVC_IFACE_FEAT_DISABLED:
+		case TEST_STAGE_HVC_IFACE_FEAT_ENABLED:
+			guest_test_hvc(hvc_info);
+			break;
+		case TEST_STAGE_HVC_IFACE_FALSE_INFO:
+			guest_test_hvc(false_hvc_info);
+			break;
+		default:
+			GUEST_FAIL("Unexpected stage = %u", stage);
+		}
+
+		GUEST_SYNC(stage);
+	}
+
+	GUEST_DONE();
+}
+
+struct st_time {
+	uint32_t rev;
+	uint32_t attr;
+	uint64_t st_time;
+};
+
+#define STEAL_TIME_SIZE		((sizeof(struct st_time) + 63) & ~63)
+#define ST_GPA_BASE		(1 << 30)
+
+static void steal_time_init(struct kvm_vcpu *vcpu)
+{
+	uint64_t st_ipa = (ulong)ST_GPA_BASE;
+	unsigned int gpages;
+
+	gpages = vm_calc_num_guest_pages(VM_MODE_DEFAULT, STEAL_TIME_SIZE);
+	vm_userspace_mem_region_add(vcpu->vm, VM_MEM_SRC_ANONYMOUS, ST_GPA_BASE, 1, gpages, 0);
+
+	vcpu_device_attr_set(vcpu, KVM_ARM_VCPU_PVTIME_CTRL,
+			     KVM_ARM_VCPU_PVTIME_IPA, &st_ipa);
+}
+
+static void test_fw_regs_before_vm_start(struct kvm_vcpu *vcpu)
+{
+	uint64_t val;
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(fw_reg_info); i++) {
+		const struct kvm_fw_reg_info *reg_info = &fw_reg_info[i];
+		uint64_t set_val;
+
+		/* First 'read' should be the reset value for the reg  */
+		val = vcpu_get_reg(vcpu, reg_info->reg);
+		TEST_ASSERT(val == reg_info->reset_val,
+			"Unexpected reset value for reg: 0x%lx; expected: 0x%lx; read: 0x%lx",
+			reg_info->reg, reg_info->reset_val, val);
+
+		if (reg_info->reset_val)
+			set_val = 0;
+		else
+			set_val = FW_REG_ULIMIT_VAL(reg_info->max_feat_bit);
+
+		ret = __vcpu_set_reg(vcpu, reg_info->reg, set_val);
+		TEST_ASSERT(ret == 0,
+			"Failed to %s all the features of reg: 0x%lx; ret: %d",
+			(set_val ? "set" : "clear"), reg_info->reg, errno);
+
+		val = vcpu_get_reg(vcpu, reg_info->reg);
+		TEST_ASSERT(val == set_val,
+			"Expected all the features to be %s for reg: 0x%lx",
+			(set_val ? "set" : "cleared"), reg_info->reg);
+
+		/*
+		 * If the reg has been set, clear it as test_fw_regs_after_vm_start()
+		 * expects it to be cleared.
+		 */
+		if (set_val) {
+			ret = __vcpu_set_reg(vcpu, reg_info->reg, 0);
+			TEST_ASSERT(ret == 0,
+			"Failed to clear all the features of reg: 0x%lx; ret: %d",
+			reg_info->reg, errno);
+		}
+
+		/*
+		 * Test enabling a feature that's not supported.
+		 * Avoid this check if all the bits are occupied.
+		 */
+		if (reg_info->max_feat_bit < 63) {
+			ret = __vcpu_set_reg(vcpu, reg_info->reg, BIT(reg_info->max_feat_bit + 1));
+			TEST_ASSERT(ret != 0 && errno == EINVAL,
+			"Unexpected behavior or return value (%d) while setting an unsupported feature for reg: 0x%lx",
+			errno, reg_info->reg);
+		}
+	}
+}
+
+static void test_fw_regs_after_vm_start(struct kvm_vcpu *vcpu)
+{
+	uint64_t val;
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(fw_reg_info); i++) {
+		const struct kvm_fw_reg_info *reg_info = &fw_reg_info[i];
+
+		/*
+		 * Before starting the VM, the test clears all the bits.
+		 * Check if that's still the case.
+		 */
+		val = vcpu_get_reg(vcpu, reg_info->reg);
+		TEST_ASSERT(val == 0,
+			"Expected all the features to be cleared for reg: 0x%lx",
+			reg_info->reg);
+
+		/*
+		 * Since the VM has run at least once, KVM shouldn't allow modification of
+		 * the registers and should return EBUSY. Set the registers and check for
+		 * the expected errno.
+		 */
+		ret = __vcpu_set_reg(vcpu, reg_info->reg, FW_REG_ULIMIT_VAL(reg_info->max_feat_bit));
+		TEST_ASSERT(ret != 0 && errno == EBUSY,
+		"Unexpected behavior or return value (%d) while setting a feature while VM is running for reg: 0x%lx",
+		errno, reg_info->reg);
+	}
+}
+
+static struct kvm_vm *test_vm_create(struct kvm_vcpu **vcpu)
+{
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(vcpu, guest_code);
+
+	steal_time_init(*vcpu);
+
+	return vm;
+}
+
+static void test_guest_stage(struct kvm_vm **vm, struct kvm_vcpu **vcpu)
+{
+	int prev_stage = stage;
+
+	pr_debug("Stage: %d\n", prev_stage);
+
+	/* Sync the stage early, the VM might be freed below. */
+	stage++;
+	sync_global_to_guest(*vm, stage);
+
+	switch (prev_stage) {
+	case TEST_STAGE_REG_IFACE:
+		test_fw_regs_after_vm_start(*vcpu);
+		break;
+	case TEST_STAGE_HVC_IFACE_FEAT_DISABLED:
+		/* Start a new VM so that all the features are now enabled by default */
+		kvm_vm_free(*vm);
+		*vm = test_vm_create(vcpu);
+		break;
+	case TEST_STAGE_HVC_IFACE_FEAT_ENABLED:
+	case TEST_STAGE_HVC_IFACE_FALSE_INFO:
+		break;
+	default:
+		TEST_FAIL("Unknown test stage: %d", prev_stage);
+	}
+}
+
+static void test_run(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	bool guest_done = false;
+
+	vm = test_vm_create(&vcpu);
+
+	test_fw_regs_before_vm_start(vcpu);
+
+	while (!guest_done) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			test_guest_stage(&vm, &vcpu);
+			break;
+		case UCALL_DONE:
+			guest_done = true;
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		default:
+			TEST_FAIL("Unexpected guest exit");
+		}
+	}
+
+	kvm_vm_free(vm);
+}
+
+int main(void)
+{
+	test_run();
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/kvm-uuid.c b/tools/testing/selftests/kvm/arm64/kvm-uuid.c
new file mode 100644
index 000000000000..b5be9133535a
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/kvm-uuid.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Check that nobody has tampered with KVM's UID
+
+#include <errno.h>
+#include <linux/arm-smccc.h>
+#include <asm/kvm.h>
+#include <kvm_util.h>
+
+#include "processor.h"
+
+/*
+ * Do NOT redefine these constants, or try to replace them with some
+ * "common" version. They are hardcoded here to detect any potential
+ * breakage happening in the rest of the kernel.
+ *
+ * KVM UID value: 28b46fb6-2ec5-11e9-a9ca-4b564d003a74
+ */
+#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_0	0xb66fb428U
+#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_1	0xe911c52eU
+#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_2	0x564bcaa9U
+#define ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_3	0x743a004dU
+
+static void guest_code(void)
+{
+	struct arm_smccc_res res = {};
+
+	do_smccc(ARM_SMCCC_VENDOR_HYP_CALL_UID_FUNC_ID, 0, 0, 0, 0, 0, 0, 0, &res);
+
+	__GUEST_ASSERT(res.a0 == ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_0 &&
+		       res.a1 == ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_1 &&
+		       res.a2 == ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_2 &&
+		       res.a3 == ARM_SMCCC_VENDOR_HYP_UID_KVM_REG_3,
+		       "Unexpected KVM-specific UID %lx %lx %lx %lx\n", res.a0, res.a1, res.a2, res.a3);
+	GUEST_DONE();
+}
+
+int main (int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	bool guest_done = false;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	while (!guest_done) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			guest_done = true;
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_PRINTF:
+			printf("%s", uc.buffer);
+			break;
+		default:
+			TEST_FAIL("Unexpected guest exit");
+		}
+	}
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/no-vgic-v3.c b/tools/testing/selftests/kvm/arm64/no-vgic-v3.c
new file mode 100644
index 000000000000..152c34776981
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/no-vgic-v3.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+
+// Check that, on a GICv3 system, not configuring GICv3 correctly
+// results in all of the sysregs generating an UNDEF exception.
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+
+static volatile bool handled;
+
+#define __check_sr_read(r)					\
+	({							\
+		uint64_t val;					\
+								\
+		handled = false;				\
+		dsb(sy);					\
+		val = read_sysreg_s(SYS_ ## r);			\
+		val;						\
+	})
+
+#define __check_sr_write(r)					\
+	do {							\
+		handled = false;				\
+		dsb(sy);					\
+		write_sysreg_s(0, SYS_ ## r);			\
+		isb();						\
+	} while(0)
+
+/* Fatal checks */
+#define check_sr_read(r)					\
+	do {							\
+		__check_sr_read(r);				\
+		__GUEST_ASSERT(handled, #r " no read trap");	\
+	} while(0)
+
+#define check_sr_write(r)					\
+	do {							\
+		__check_sr_write(r);				\
+		__GUEST_ASSERT(handled, #r " no write trap");	\
+	} while(0)
+
+#define check_sr_rw(r)				\
+	do {					\
+		check_sr_read(r);		\
+		check_sr_write(r);		\
+	} while(0)
+
+static void guest_code(void)
+{
+	uint64_t val;
+
+	/*
+	 * Check that we advertise that ID_AA64PFR0_EL1.GIC == 0, having
+	 * hidden the feature at runtime without any other userspace action.
+	 */
+	__GUEST_ASSERT(FIELD_GET(ID_AA64PFR0_EL1_GIC,
+				 read_sysreg(id_aa64pfr0_el1)) == 0,
+		       "GICv3 wrongly advertised");
+
+	/*
+	 * Access all GICv3 registers, and fail if we don't get an UNDEF.
+	 * Note that we happily access all the APxRn registers without
+	 * checking their existance, as all we want to see is a failure.
+	 */
+	check_sr_rw(ICC_PMR_EL1);
+	check_sr_read(ICC_IAR0_EL1);
+	check_sr_write(ICC_EOIR0_EL1);
+	check_sr_rw(ICC_HPPIR0_EL1);
+	check_sr_rw(ICC_BPR0_EL1);
+	check_sr_rw(ICC_AP0R0_EL1);
+	check_sr_rw(ICC_AP0R1_EL1);
+	check_sr_rw(ICC_AP0R2_EL1);
+	check_sr_rw(ICC_AP0R3_EL1);
+	check_sr_rw(ICC_AP1R0_EL1);
+	check_sr_rw(ICC_AP1R1_EL1);
+	check_sr_rw(ICC_AP1R2_EL1);
+	check_sr_rw(ICC_AP1R3_EL1);
+	check_sr_write(ICC_DIR_EL1);
+	check_sr_read(ICC_RPR_EL1);
+	check_sr_write(ICC_SGI1R_EL1);
+	check_sr_write(ICC_ASGI1R_EL1);
+	check_sr_write(ICC_SGI0R_EL1);
+	check_sr_read(ICC_IAR1_EL1);
+	check_sr_write(ICC_EOIR1_EL1);
+	check_sr_rw(ICC_HPPIR1_EL1);
+	check_sr_rw(ICC_BPR1_EL1);
+	check_sr_rw(ICC_CTLR_EL1);
+	check_sr_rw(ICC_IGRPEN0_EL1);
+	check_sr_rw(ICC_IGRPEN1_EL1);
+
+	/*
+	 * ICC_SRE_EL1 may not be trappable, as ICC_SRE_EL2.Enable can
+	 * be RAO/WI. Engage in non-fatal accesses, starting with a
+	 * write of 0 to try and disable SRE, and let's see if it
+	 * sticks.
+	 */
+	__check_sr_write(ICC_SRE_EL1);
+	if (!handled)
+		GUEST_PRINTF("ICC_SRE_EL1 write not trapping (OK)\n");
+
+	val = __check_sr_read(ICC_SRE_EL1);
+	if (!handled) {
+		__GUEST_ASSERT((val & BIT(0)),
+			       "ICC_SRE_EL1 not trapped but ICC_SRE_EL1.SRE not set\n");
+		GUEST_PRINTF("ICC_SRE_EL1 read not trapping (OK)\n");
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_undef_handler(struct ex_regs *regs)
+{
+	/* Success, we've gracefully exploded! */
+	handled = true;
+	regs->pc += 4;
+}
+
+static void test_run_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	do {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_PRINTF:
+			printf("%s", uc.buffer);
+			break;
+		case UCALL_DONE:
+			break;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	} while (uc.cmd != UCALL_DONE);
+}
+
+static void test_guest_no_gicv3(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	/* Create a VM without a GICv3 */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(vcpu);
+
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_UNKNOWN, guest_undef_handler);
+
+	test_run_vcpu(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint64_t pfr0;
+
+	test_disable_default_vgic();
+
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+	pfr0 = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1));
+	__TEST_REQUIRE(FIELD_GET(ID_AA64PFR0_EL1_GIC, pfr0),
+		       "GICv3 not supported.");
+	kvm_vm_free(vm);
+
+	test_guest_no_gicv3();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/page_fault_test.c b/tools/testing/selftests/kvm/arm64/page_fault_test.c
new file mode 100644
index 000000000000..4ccbd389d133
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/page_fault_test.c
@@ -0,0 +1,1135 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * page_fault_test.c - Test stage 2 faults.
+ *
+ * This test tries different combinations of guest accesses (e.g., write,
+ * S1PTW), backing source type (e.g., anon) and types of faults (e.g., read on
+ * hugetlbfs with a hole). It checks that the expected handling method is
+ * called (e.g., uffd faults with the right address and write/read flag).
+ */
+#include <linux/bitmap.h>
+#include <fcntl.h>
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+#include <asm/sysreg.h>
+#include <linux/bitfield.h>
+#include "guest_modes.h"
+#include "userfaultfd_util.h"
+
+/* Guest virtual addresses that point to the test page and its PTE. */
+#define TEST_GVA				0xc0000000
+#define TEST_EXEC_GVA				(TEST_GVA + 0x8)
+#define TEST_PTE_GVA				0xb0000000
+#define TEST_DATA				0x0123456789ABCDEF
+
+static uint64_t *guest_test_memory = (uint64_t *)TEST_GVA;
+
+#define CMD_NONE				(0)
+#define CMD_SKIP_TEST				(1ULL << 1)
+#define CMD_HOLE_PT				(1ULL << 2)
+#define CMD_HOLE_DATA				(1ULL << 3)
+#define CMD_CHECK_WRITE_IN_DIRTY_LOG		(1ULL << 4)
+#define CMD_CHECK_S1PTW_WR_IN_DIRTY_LOG		(1ULL << 5)
+#define CMD_CHECK_NO_WRITE_IN_DIRTY_LOG		(1ULL << 6)
+#define CMD_CHECK_NO_S1PTW_WR_IN_DIRTY_LOG	(1ULL << 7)
+#define CMD_SET_PTE_AF				(1ULL << 8)
+
+#define PREPARE_FN_NR				10
+#define CHECK_FN_NR				10
+
+static struct event_cnt {
+	int mmio_exits;
+	int fail_vcpu_runs;
+	int uffd_faults;
+	/* uffd_faults is incremented from multiple threads. */
+	pthread_mutex_t uffd_faults_mutex;
+} events;
+
+struct test_desc {
+	const char *name;
+	uint64_t mem_mark_cmd;
+	/* Skip the test if any prepare function returns false */
+	bool (*guest_prepare[PREPARE_FN_NR])(void);
+	void (*guest_test)(void);
+	void (*guest_test_check[CHECK_FN_NR])(void);
+	uffd_handler_t uffd_pt_handler;
+	uffd_handler_t uffd_data_handler;
+	void (*dabt_handler)(struct ex_regs *regs);
+	void (*iabt_handler)(struct ex_regs *regs);
+	void (*mmio_handler)(struct kvm_vm *vm, struct kvm_run *run);
+	void (*fail_vcpu_run_handler)(int ret);
+	uint32_t pt_memslot_flags;
+	uint32_t data_memslot_flags;
+	bool skip;
+	struct event_cnt expected_events;
+};
+
+struct test_params {
+	enum vm_mem_backing_src_type src_type;
+	struct test_desc *test_desc;
+};
+
+static inline void flush_tlb_page(uint64_t vaddr)
+{
+	uint64_t page = vaddr >> 12;
+
+	dsb(ishst);
+	asm volatile("tlbi vaae1is, %0" :: "r" (page));
+	dsb(ish);
+	isb();
+}
+
+static void guest_write64(void)
+{
+	uint64_t val;
+
+	WRITE_ONCE(*guest_test_memory, TEST_DATA);
+	val = READ_ONCE(*guest_test_memory);
+	GUEST_ASSERT_EQ(val, TEST_DATA);
+}
+
+/* Check the system for atomic instructions. */
+static bool guest_check_lse(void)
+{
+	uint64_t isar0 = read_sysreg(id_aa64isar0_el1);
+	uint64_t atomic;
+
+	atomic = FIELD_GET(ID_AA64ISAR0_EL1_ATOMIC, isar0);
+	return atomic >= 2;
+}
+
+static bool guest_check_dc_zva(void)
+{
+	uint64_t dczid = read_sysreg(dczid_el0);
+	uint64_t dzp = FIELD_GET(DCZID_EL0_DZP, dczid);
+
+	return dzp == 0;
+}
+
+/* Compare and swap instruction. */
+static void guest_cas(void)
+{
+	uint64_t val;
+
+	GUEST_ASSERT(guest_check_lse());
+	asm volatile(".arch_extension lse\n"
+		     "casal %0, %1, [%2]\n"
+		     :: "r" (0ul), "r" (TEST_DATA), "r" (guest_test_memory));
+	val = READ_ONCE(*guest_test_memory);
+	GUEST_ASSERT_EQ(val, TEST_DATA);
+}
+
+static void guest_read64(void)
+{
+	uint64_t val;
+
+	val = READ_ONCE(*guest_test_memory);
+	GUEST_ASSERT_EQ(val, 0);
+}
+
+/* Address translation instruction */
+static void guest_at(void)
+{
+	uint64_t par;
+
+	asm volatile("at s1e1r, %0" :: "r" (guest_test_memory));
+	isb();
+	par = read_sysreg(par_el1);
+
+	/* Bit 1 indicates whether the AT was successful */
+	GUEST_ASSERT_EQ(par & 1, 0);
+}
+
+/*
+ * The size of the block written by "dc zva" is guaranteed to be between (2 <<
+ * 0) and (2 << 9), which is safe in our case as we need the write to happen
+ * for at least a word, and not more than a page.
+ */
+static void guest_dc_zva(void)
+{
+	uint16_t val;
+
+	asm volatile("dc zva, %0" :: "r" (guest_test_memory));
+	dsb(ish);
+	val = READ_ONCE(*guest_test_memory);
+	GUEST_ASSERT_EQ(val, 0);
+}
+
+/*
+ * Pre-indexing loads and stores don't have a valid syndrome (ESR_EL2.ISV==0).
+ * And that's special because KVM must take special care with those: they
+ * should still count as accesses for dirty logging or user-faulting, but
+ * should be handled differently on mmio.
+ */
+static void guest_ld_preidx(void)
+{
+	uint64_t val;
+	uint64_t addr = TEST_GVA - 8;
+
+	/*
+	 * This ends up accessing "TEST_GVA + 8 - 8", where "TEST_GVA - 8" is
+	 * in a gap between memslots not backing by anything.
+	 */
+	asm volatile("ldr %0, [%1, #8]!"
+		     : "=r" (val), "+r" (addr));
+	GUEST_ASSERT_EQ(val, 0);
+	GUEST_ASSERT_EQ(addr, TEST_GVA);
+}
+
+static void guest_st_preidx(void)
+{
+	uint64_t val = TEST_DATA;
+	uint64_t addr = TEST_GVA - 8;
+
+	asm volatile("str %0, [%1, #8]!"
+		     : "+r" (val), "+r" (addr));
+
+	GUEST_ASSERT_EQ(addr, TEST_GVA);
+	val = READ_ONCE(*guest_test_memory);
+}
+
+static bool guest_set_ha(void)
+{
+	uint64_t mmfr1 = read_sysreg(id_aa64mmfr1_el1);
+	uint64_t hadbs, tcr;
+
+	/* Skip if HA is not supported. */
+	hadbs = FIELD_GET(ID_AA64MMFR1_EL1_HAFDBS, mmfr1);
+	if (hadbs == 0)
+		return false;
+
+	tcr = read_sysreg(tcr_el1) | TCR_HA;
+	write_sysreg(tcr, tcr_el1);
+	isb();
+
+	return true;
+}
+
+static bool guest_clear_pte_af(void)
+{
+	*((uint64_t *)TEST_PTE_GVA) &= ~PTE_AF;
+	flush_tlb_page(TEST_GVA);
+
+	return true;
+}
+
+static void guest_check_pte_af(void)
+{
+	dsb(ish);
+	GUEST_ASSERT_EQ(*((uint64_t *)TEST_PTE_GVA) & PTE_AF, PTE_AF);
+}
+
+static void guest_check_write_in_dirty_log(void)
+{
+	GUEST_SYNC(CMD_CHECK_WRITE_IN_DIRTY_LOG);
+}
+
+static void guest_check_no_write_in_dirty_log(void)
+{
+	GUEST_SYNC(CMD_CHECK_NO_WRITE_IN_DIRTY_LOG);
+}
+
+static void guest_check_s1ptw_wr_in_dirty_log(void)
+{
+	GUEST_SYNC(CMD_CHECK_S1PTW_WR_IN_DIRTY_LOG);
+}
+
+static void guest_check_no_s1ptw_wr_in_dirty_log(void)
+{
+	GUEST_SYNC(CMD_CHECK_NO_S1PTW_WR_IN_DIRTY_LOG);
+}
+
+static void guest_exec(void)
+{
+	int (*code)(void) = (int (*)(void))TEST_EXEC_GVA;
+	int ret;
+
+	ret = code();
+	GUEST_ASSERT_EQ(ret, 0x77);
+}
+
+static bool guest_prepare(struct test_desc *test)
+{
+	bool (*prepare_fn)(void);
+	int i;
+
+	for (i = 0; i < PREPARE_FN_NR; i++) {
+		prepare_fn = test->guest_prepare[i];
+		if (prepare_fn && !prepare_fn())
+			return false;
+	}
+
+	return true;
+}
+
+static void guest_test_check(struct test_desc *test)
+{
+	void (*check_fn)(void);
+	int i;
+
+	for (i = 0; i < CHECK_FN_NR; i++) {
+		check_fn = test->guest_test_check[i];
+		if (check_fn)
+			check_fn();
+	}
+}
+
+static void guest_code(struct test_desc *test)
+{
+	if (!guest_prepare(test))
+		GUEST_SYNC(CMD_SKIP_TEST);
+
+	GUEST_SYNC(test->mem_mark_cmd);
+
+	if (test->guest_test)
+		test->guest_test();
+
+	guest_test_check(test);
+	GUEST_DONE();
+}
+
+static void no_dabt_handler(struct ex_regs *regs)
+{
+	GUEST_FAIL("Unexpected dabt, far_el1 = 0x%lx", read_sysreg(far_el1));
+}
+
+static void no_iabt_handler(struct ex_regs *regs)
+{
+	GUEST_FAIL("Unexpected iabt, pc = 0x%lx", regs->pc);
+}
+
+static struct uffd_args {
+	char *copy;
+	void *hva;
+	uint64_t paging_size;
+} pt_args, data_args;
+
+/* Returns true to continue the test, and false if it should be skipped. */
+static int uffd_generic_handler(int uffd_mode, int uffd, struct uffd_msg *msg,
+				struct uffd_args *args)
+{
+	uint64_t addr = msg->arg.pagefault.address;
+	uint64_t flags = msg->arg.pagefault.flags;
+	struct uffdio_copy copy;
+	int ret;
+
+	TEST_ASSERT(uffd_mode == UFFDIO_REGISTER_MODE_MISSING,
+		    "The only expected UFFD mode is MISSING");
+	TEST_ASSERT_EQ(addr, (uint64_t)args->hva);
+
+	pr_debug("uffd fault: addr=%p write=%d\n",
+		 (void *)addr, !!(flags & UFFD_PAGEFAULT_FLAG_WRITE));
+
+	copy.src = (uint64_t)args->copy;
+	copy.dst = addr;
+	copy.len = args->paging_size;
+	copy.mode = 0;
+
+	ret = ioctl(uffd, UFFDIO_COPY, &copy);
+	if (ret == -1) {
+		pr_info("Failed UFFDIO_COPY in 0x%lx with errno: %d\n",
+			addr, errno);
+		return ret;
+	}
+
+	pthread_mutex_lock(&events.uffd_faults_mutex);
+	events.uffd_faults += 1;
+	pthread_mutex_unlock(&events.uffd_faults_mutex);
+	return 0;
+}
+
+static int uffd_pt_handler(int mode, int uffd, struct uffd_msg *msg)
+{
+	return uffd_generic_handler(mode, uffd, msg, &pt_args);
+}
+
+static int uffd_data_handler(int mode, int uffd, struct uffd_msg *msg)
+{
+	return uffd_generic_handler(mode, uffd, msg, &data_args);
+}
+
+static void setup_uffd_args(struct userspace_mem_region *region,
+			    struct uffd_args *args)
+{
+	args->hva = (void *)region->region.userspace_addr;
+	args->paging_size = region->region.memory_size;
+
+	args->copy = malloc(args->paging_size);
+	TEST_ASSERT(args->copy, "Failed to allocate data copy.");
+	memcpy(args->copy, args->hva, args->paging_size);
+}
+
+static void setup_uffd(struct kvm_vm *vm, struct test_params *p,
+		       struct uffd_desc **pt_uffd, struct uffd_desc **data_uffd)
+{
+	struct test_desc *test = p->test_desc;
+	int uffd_mode = UFFDIO_REGISTER_MODE_MISSING;
+
+	setup_uffd_args(vm_get_mem_region(vm, MEM_REGION_PT), &pt_args);
+	setup_uffd_args(vm_get_mem_region(vm, MEM_REGION_TEST_DATA), &data_args);
+
+	*pt_uffd = NULL;
+	if (test->uffd_pt_handler)
+		*pt_uffd = uffd_setup_demand_paging(uffd_mode, 0,
+						    pt_args.hva,
+						    pt_args.paging_size,
+						    1, test->uffd_pt_handler);
+
+	*data_uffd = NULL;
+	if (test->uffd_data_handler)
+		*data_uffd = uffd_setup_demand_paging(uffd_mode, 0,
+						      data_args.hva,
+						      data_args.paging_size,
+						      1, test->uffd_data_handler);
+}
+
+static void free_uffd(struct test_desc *test, struct uffd_desc *pt_uffd,
+		      struct uffd_desc *data_uffd)
+{
+	if (test->uffd_pt_handler)
+		uffd_stop_demand_paging(pt_uffd);
+	if (test->uffd_data_handler)
+		uffd_stop_demand_paging(data_uffd);
+
+	free(pt_args.copy);
+	free(data_args.copy);
+}
+
+static int uffd_no_handler(int mode, int uffd, struct uffd_msg *msg)
+{
+	TEST_FAIL("There was no UFFD fault expected.");
+	return -1;
+}
+
+/* Returns false if the test should be skipped. */
+static bool punch_hole_in_backing_store(struct kvm_vm *vm,
+					struct userspace_mem_region *region)
+{
+	void *hva = (void *)region->region.userspace_addr;
+	uint64_t paging_size = region->region.memory_size;
+	int ret, fd = region->fd;
+
+	if (fd != -1) {
+		ret = fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+				0, paging_size);
+		TEST_ASSERT(ret == 0, "fallocate failed");
+	} else {
+		ret = madvise(hva, paging_size, MADV_DONTNEED);
+		TEST_ASSERT(ret == 0, "madvise failed");
+	}
+
+	return true;
+}
+
+static void mmio_on_test_gpa_handler(struct kvm_vm *vm, struct kvm_run *run)
+{
+	struct userspace_mem_region *region;
+	void *hva;
+
+	region = vm_get_mem_region(vm, MEM_REGION_TEST_DATA);
+	hva = (void *)region->region.userspace_addr;
+
+	TEST_ASSERT_EQ(run->mmio.phys_addr, region->region.guest_phys_addr);
+
+	memcpy(hva, run->mmio.data, run->mmio.len);
+	events.mmio_exits += 1;
+}
+
+static void mmio_no_handler(struct kvm_vm *vm, struct kvm_run *run)
+{
+	uint64_t data;
+
+	memcpy(&data, run->mmio.data, sizeof(data));
+	pr_debug("addr=%lld len=%d w=%d data=%lx\n",
+		 run->mmio.phys_addr, run->mmio.len,
+		 run->mmio.is_write, data);
+	TEST_FAIL("There was no MMIO exit expected.");
+}
+
+static bool check_write_in_dirty_log(struct kvm_vm *vm,
+				     struct userspace_mem_region *region,
+				     uint64_t host_pg_nr)
+{
+	unsigned long *bmap;
+	bool first_page_dirty;
+	uint64_t size = region->region.memory_size;
+
+	/* getpage_size() is not always equal to vm->page_size */
+	bmap = bitmap_zalloc(size / getpagesize());
+	kvm_vm_get_dirty_log(vm, region->region.slot, bmap);
+	first_page_dirty = test_bit(host_pg_nr, bmap);
+	free(bmap);
+	return first_page_dirty;
+}
+
+/* Returns true to continue the test, and false if it should be skipped. */
+static bool handle_cmd(struct kvm_vm *vm, int cmd)
+{
+	struct userspace_mem_region *data_region, *pt_region;
+	bool continue_test = true;
+	uint64_t pte_gpa, pte_pg;
+
+	data_region = vm_get_mem_region(vm, MEM_REGION_TEST_DATA);
+	pt_region = vm_get_mem_region(vm, MEM_REGION_PT);
+	pte_gpa = addr_hva2gpa(vm, virt_get_pte_hva(vm, TEST_GVA));
+	pte_pg = (pte_gpa - pt_region->region.guest_phys_addr) / getpagesize();
+
+	if (cmd == CMD_SKIP_TEST)
+		continue_test = false;
+
+	if (cmd & CMD_HOLE_PT)
+		continue_test = punch_hole_in_backing_store(vm, pt_region);
+	if (cmd & CMD_HOLE_DATA)
+		continue_test = punch_hole_in_backing_store(vm, data_region);
+	if (cmd & CMD_CHECK_WRITE_IN_DIRTY_LOG)
+		TEST_ASSERT(check_write_in_dirty_log(vm, data_region, 0),
+			    "Missing write in dirty log");
+	if (cmd & CMD_CHECK_S1PTW_WR_IN_DIRTY_LOG)
+		TEST_ASSERT(check_write_in_dirty_log(vm, pt_region, pte_pg),
+			    "Missing s1ptw write in dirty log");
+	if (cmd & CMD_CHECK_NO_WRITE_IN_DIRTY_LOG)
+		TEST_ASSERT(!check_write_in_dirty_log(vm, data_region, 0),
+			    "Unexpected write in dirty log");
+	if (cmd & CMD_CHECK_NO_S1PTW_WR_IN_DIRTY_LOG)
+		TEST_ASSERT(!check_write_in_dirty_log(vm, pt_region, pte_pg),
+			    "Unexpected s1ptw write in dirty log");
+
+	return continue_test;
+}
+
+void fail_vcpu_run_no_handler(int ret)
+{
+	TEST_FAIL("Unexpected vcpu run failure");
+}
+
+void fail_vcpu_run_mmio_no_syndrome_handler(int ret)
+{
+	TEST_ASSERT(errno == ENOSYS,
+		    "The mmio handler should have returned not implemented.");
+	events.fail_vcpu_runs += 1;
+}
+
+typedef uint32_t aarch64_insn_t;
+extern aarch64_insn_t __exec_test[2];
+
+noinline void __return_0x77(void)
+{
+	asm volatile("__exec_test: mov x0, #0x77\n"
+		     "ret\n");
+}
+
+/*
+ * Note that this function runs on the host before the test VM starts: there's
+ * no need to sync the D$ and I$ caches.
+ */
+static void load_exec_code_for_test(struct kvm_vm *vm)
+{
+	uint64_t *code;
+	struct userspace_mem_region *region;
+	void *hva;
+
+	region = vm_get_mem_region(vm, MEM_REGION_TEST_DATA);
+	hva = (void *)region->region.userspace_addr;
+
+	assert(TEST_EXEC_GVA > TEST_GVA);
+	code = hva + TEST_EXEC_GVA - TEST_GVA;
+	memcpy(code, __exec_test, sizeof(__exec_test));
+}
+
+static void setup_abort_handlers(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
+				 struct test_desc *test)
+{
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(vcpu);
+
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_DABT_CUR, no_dabt_handler);
+	vm_install_sync_handler(vm, VECTOR_SYNC_CURRENT,
+				ESR_ELx_EC_IABT_CUR, no_iabt_handler);
+}
+
+static void setup_gva_maps(struct kvm_vm *vm)
+{
+	struct userspace_mem_region *region;
+	uint64_t pte_gpa;
+
+	region = vm_get_mem_region(vm, MEM_REGION_TEST_DATA);
+	/* Map TEST_GVA first. This will install a new PTE. */
+	virt_pg_map(vm, TEST_GVA, region->region.guest_phys_addr);
+	/* Then map TEST_PTE_GVA to the above PTE. */
+	pte_gpa = addr_hva2gpa(vm, virt_get_pte_hva(vm, TEST_GVA));
+	virt_pg_map(vm, TEST_PTE_GVA, pte_gpa);
+}
+
+enum pf_test_memslots {
+	CODE_AND_DATA_MEMSLOT,
+	PAGE_TABLE_MEMSLOT,
+	TEST_DATA_MEMSLOT,
+};
+
+/*
+ * Create a memslot for code and data at pfn=0, and test-data and PT ones
+ * at max_gfn.
+ */
+static void setup_memslots(struct kvm_vm *vm, struct test_params *p)
+{
+	uint64_t backing_src_pagesz = get_backing_src_pagesz(p->src_type);
+	uint64_t guest_page_size = vm->page_size;
+	uint64_t max_gfn = vm_compute_max_gfn(vm);
+	/* Enough for 2M of code when using 4K guest pages. */
+	uint64_t code_npages = 512;
+	uint64_t pt_size, data_size, data_gpa;
+
+	/*
+	 * This test requires 1 pgd, 2 pud, 4 pmd, and 6 pte pages when using
+	 * VM_MODE_P48V48_4K. Note that the .text takes ~1.6MBs.  That's 13
+	 * pages. VM_MODE_P48V48_4K is the mode with most PT pages; let's use
+	 * twice that just in case.
+	 */
+	pt_size = 26 * guest_page_size;
+
+	/* memslot sizes and gpa's must be aligned to the backing page size */
+	pt_size = align_up(pt_size, backing_src_pagesz);
+	data_size = align_up(guest_page_size, backing_src_pagesz);
+	data_gpa = (max_gfn * guest_page_size) - data_size;
+	data_gpa = align_down(data_gpa, backing_src_pagesz);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0,
+				    CODE_AND_DATA_MEMSLOT, code_npages, 0);
+	vm->memslots[MEM_REGION_CODE] = CODE_AND_DATA_MEMSLOT;
+	vm->memslots[MEM_REGION_DATA] = CODE_AND_DATA_MEMSLOT;
+
+	vm_userspace_mem_region_add(vm, p->src_type, data_gpa - pt_size,
+				    PAGE_TABLE_MEMSLOT, pt_size / guest_page_size,
+				    p->test_desc->pt_memslot_flags);
+	vm->memslots[MEM_REGION_PT] = PAGE_TABLE_MEMSLOT;
+
+	vm_userspace_mem_region_add(vm, p->src_type, data_gpa, TEST_DATA_MEMSLOT,
+				    data_size / guest_page_size,
+				    p->test_desc->data_memslot_flags);
+	vm->memslots[MEM_REGION_TEST_DATA] = TEST_DATA_MEMSLOT;
+}
+
+static void setup_ucall(struct kvm_vm *vm)
+{
+	struct userspace_mem_region *region = vm_get_mem_region(vm, MEM_REGION_TEST_DATA);
+
+	ucall_init(vm, region->region.guest_phys_addr + region->region.memory_size);
+}
+
+static void setup_default_handlers(struct test_desc *test)
+{
+	if (!test->mmio_handler)
+		test->mmio_handler = mmio_no_handler;
+
+	if (!test->fail_vcpu_run_handler)
+		test->fail_vcpu_run_handler = fail_vcpu_run_no_handler;
+}
+
+static void check_event_counts(struct test_desc *test)
+{
+	TEST_ASSERT_EQ(test->expected_events.uffd_faults, events.uffd_faults);
+	TEST_ASSERT_EQ(test->expected_events.mmio_exits, events.mmio_exits);
+	TEST_ASSERT_EQ(test->expected_events.fail_vcpu_runs, events.fail_vcpu_runs);
+}
+
+static void print_test_banner(enum vm_guest_mode mode, struct test_params *p)
+{
+	struct test_desc *test = p->test_desc;
+
+	pr_debug("Test: %s\n", test->name);
+	pr_debug("Testing guest mode: %s\n", vm_guest_mode_string(mode));
+	pr_debug("Testing memory backing src type: %s\n",
+		 vm_mem_backing_src_alias(p->src_type)->name);
+}
+
+static void reset_event_counts(void)
+{
+	memset(&events, 0, sizeof(events));
+}
+
+/*
+ * This function either succeeds, skips the test (after setting test->skip), or
+ * fails with a TEST_FAIL that aborts all tests.
+ */
+static void vcpu_run_loop(struct kvm_vm *vm, struct kvm_vcpu *vcpu,
+			  struct test_desc *test)
+{
+	struct kvm_run *run;
+	struct ucall uc;
+	int ret;
+
+	run = vcpu->run;
+
+	for (;;) {
+		ret = _vcpu_run(vcpu);
+		if (ret) {
+			test->fail_vcpu_run_handler(ret);
+			goto done;
+		}
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			if (!handle_cmd(vm, uc.args[1])) {
+				test->skip = true;
+				goto done;
+			}
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			goto done;
+		case UCALL_NONE:
+			if (run->exit_reason == KVM_EXIT_MMIO)
+				test->mmio_handler(vm, run);
+			break;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	pr_debug(test->skip ? "Skipped.\n" : "Done.\n");
+}
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct test_params *p = (struct test_params *)arg;
+	struct test_desc *test = p->test_desc;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	struct uffd_desc *pt_uffd, *data_uffd;
+
+	print_test_banner(mode, p);
+
+	vm = ____vm_create(VM_SHAPE(mode));
+	setup_memslots(vm, p);
+	kvm_vm_elf_load(vm, program_invocation_name);
+	setup_ucall(vm);
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+
+	setup_gva_maps(vm);
+
+	reset_event_counts();
+
+	/*
+	 * Set some code in the data memslot for the guest to execute (only
+	 * applicable to the EXEC tests). This has to be done before
+	 * setup_uffd() as that function copies the memslot data for the uffd
+	 * handler.
+	 */
+	load_exec_code_for_test(vm);
+	setup_uffd(vm, p, &pt_uffd, &data_uffd);
+	setup_abort_handlers(vm, vcpu, test);
+	setup_default_handlers(test);
+	vcpu_args_set(vcpu, 1, test);
+
+	vcpu_run_loop(vm, vcpu, test);
+
+	kvm_vm_free(vm);
+	free_uffd(test, pt_uffd, data_uffd);
+
+	/*
+	 * Make sure we check the events after the uffd threads have exited,
+	 * which means they updated their respective event counters.
+	 */
+	if (!test->skip)
+		check_event_counts(test);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-s mem-type]\n", name);
+	puts("");
+	guest_modes_help();
+	backing_src_help("-s");
+	puts("");
+}
+
+#define SNAME(s)			#s
+#define SCAT2(a, b)			SNAME(a ## _ ## b)
+#define SCAT3(a, b, c)			SCAT2(a, SCAT2(b, c))
+#define SCAT4(a, b, c, d)		SCAT2(a, SCAT3(b, c, d))
+
+#define _CHECK(_test)			_CHECK_##_test
+#define _PREPARE(_test)			_PREPARE_##_test
+#define _PREPARE_guest_read64		NULL
+#define _PREPARE_guest_ld_preidx	NULL
+#define _PREPARE_guest_write64		NULL
+#define _PREPARE_guest_st_preidx	NULL
+#define _PREPARE_guest_exec		NULL
+#define _PREPARE_guest_at		NULL
+#define _PREPARE_guest_dc_zva		guest_check_dc_zva
+#define _PREPARE_guest_cas		guest_check_lse
+
+/* With or without access flag checks */
+#define _PREPARE_with_af		guest_set_ha, guest_clear_pte_af
+#define _PREPARE_no_af			NULL
+#define _CHECK_with_af			guest_check_pte_af
+#define _CHECK_no_af			NULL
+
+/* Performs an access and checks that no faults were triggered. */
+#define TEST_ACCESS(_access, _with_af, _mark_cmd)				\
+{										\
+	.name			= SCAT3(_access, _with_af, #_mark_cmd),		\
+	.guest_prepare		= { _PREPARE(_with_af),				\
+				    _PREPARE(_access) },			\
+	.mem_mark_cmd		= _mark_cmd,					\
+	.guest_test		= _access,					\
+	.guest_test_check	= { _CHECK(_with_af) },				\
+	.expected_events	= { 0 },					\
+}
+
+#define TEST_UFFD(_access, _with_af, _mark_cmd,					\
+		  _uffd_data_handler, _uffd_pt_handler, _uffd_faults)		\
+{										\
+	.name			= SCAT4(uffd, _access, _with_af, #_mark_cmd),	\
+	.guest_prepare		= { _PREPARE(_with_af),				\
+				    _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.mem_mark_cmd		= _mark_cmd,					\
+	.guest_test_check	= { _CHECK(_with_af) },				\
+	.uffd_data_handler	= _uffd_data_handler,				\
+	.uffd_pt_handler	= _uffd_pt_handler,				\
+	.expected_events	= { .uffd_faults = _uffd_faults, },		\
+}
+
+#define TEST_DIRTY_LOG(_access, _with_af, _test_check, _pt_check)		\
+{										\
+	.name			= SCAT3(dirty_log, _access, _with_af),		\
+	.data_memslot_flags	= KVM_MEM_LOG_DIRTY_PAGES,			\
+	.pt_memslot_flags	= KVM_MEM_LOG_DIRTY_PAGES,			\
+	.guest_prepare		= { _PREPARE(_with_af),				\
+				    _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.guest_test_check	= { _CHECK(_with_af), _test_check, _pt_check },	\
+	.expected_events	= { 0 },					\
+}
+
+#define TEST_UFFD_AND_DIRTY_LOG(_access, _with_af, _uffd_data_handler,		\
+				_uffd_faults, _test_check, _pt_check)		\
+{										\
+	.name			= SCAT3(uffd_and_dirty_log, _access, _with_af),	\
+	.data_memslot_flags	= KVM_MEM_LOG_DIRTY_PAGES,			\
+	.pt_memslot_flags	= KVM_MEM_LOG_DIRTY_PAGES,			\
+	.guest_prepare		= { _PREPARE(_with_af),				\
+				    _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.mem_mark_cmd		= CMD_HOLE_DATA | CMD_HOLE_PT,			\
+	.guest_test_check	= { _CHECK(_with_af), _test_check, _pt_check },	\
+	.uffd_data_handler	= _uffd_data_handler,				\
+	.uffd_pt_handler	= uffd_pt_handler,				\
+	.expected_events	= { .uffd_faults = _uffd_faults, },		\
+}
+
+#define TEST_RO_MEMSLOT(_access, _mmio_handler, _mmio_exits)			\
+{										\
+	.name			= SCAT2(ro_memslot, _access),			\
+	.data_memslot_flags	= KVM_MEM_READONLY,				\
+	.pt_memslot_flags	= KVM_MEM_READONLY,				\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.mmio_handler		= _mmio_handler,				\
+	.expected_events	= { .mmio_exits = _mmio_exits },		\
+}
+
+#define TEST_RO_MEMSLOT_NO_SYNDROME(_access)					\
+{										\
+	.name			= SCAT2(ro_memslot_no_syndrome, _access),	\
+	.data_memslot_flags	= KVM_MEM_READONLY,				\
+	.pt_memslot_flags	= KVM_MEM_READONLY,				\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.fail_vcpu_run_handler	= fail_vcpu_run_mmio_no_syndrome_handler,	\
+	.expected_events	= { .fail_vcpu_runs = 1 },			\
+}
+
+#define TEST_RO_MEMSLOT_AND_DIRTY_LOG(_access, _mmio_handler, _mmio_exits,	\
+				      _test_check)				\
+{										\
+	.name			= SCAT2(ro_memslot, _access),			\
+	.data_memslot_flags	= KVM_MEM_READONLY | KVM_MEM_LOG_DIRTY_PAGES,	\
+	.pt_memslot_flags	= KVM_MEM_READONLY | KVM_MEM_LOG_DIRTY_PAGES,	\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.guest_test_check	= { _test_check },				\
+	.mmio_handler		= _mmio_handler,				\
+	.expected_events	= { .mmio_exits = _mmio_exits},			\
+}
+
+#define TEST_RO_MEMSLOT_NO_SYNDROME_AND_DIRTY_LOG(_access, _test_check)		\
+{										\
+	.name			= SCAT2(ro_memslot_no_syn_and_dlog, _access),	\
+	.data_memslot_flags	= KVM_MEM_READONLY | KVM_MEM_LOG_DIRTY_PAGES,	\
+	.pt_memslot_flags	= KVM_MEM_READONLY | KVM_MEM_LOG_DIRTY_PAGES,	\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.guest_test_check	= { _test_check },				\
+	.fail_vcpu_run_handler	= fail_vcpu_run_mmio_no_syndrome_handler,	\
+	.expected_events	= { .fail_vcpu_runs = 1 },			\
+}
+
+#define TEST_RO_MEMSLOT_AND_UFFD(_access, _mmio_handler, _mmio_exits,		\
+				 _uffd_data_handler, _uffd_faults)		\
+{										\
+	.name			= SCAT2(ro_memslot_uffd, _access),		\
+	.data_memslot_flags	= KVM_MEM_READONLY,				\
+	.pt_memslot_flags	= KVM_MEM_READONLY,				\
+	.mem_mark_cmd		= CMD_HOLE_DATA | CMD_HOLE_PT,			\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.uffd_data_handler	= _uffd_data_handler,				\
+	.uffd_pt_handler	= uffd_pt_handler,				\
+	.mmio_handler		= _mmio_handler,				\
+	.expected_events	= { .mmio_exits = _mmio_exits,			\
+				    .uffd_faults = _uffd_faults },		\
+}
+
+#define TEST_RO_MEMSLOT_NO_SYNDROME_AND_UFFD(_access, _uffd_data_handler,	\
+					     _uffd_faults)			\
+{										\
+	.name			= SCAT2(ro_memslot_no_syndrome, _access),	\
+	.data_memslot_flags	= KVM_MEM_READONLY,				\
+	.pt_memslot_flags	= KVM_MEM_READONLY,				\
+	.mem_mark_cmd		= CMD_HOLE_DATA | CMD_HOLE_PT,			\
+	.guest_prepare		= { _PREPARE(_access) },			\
+	.guest_test		= _access,					\
+	.uffd_data_handler	= _uffd_data_handler,				\
+	.uffd_pt_handler	= uffd_pt_handler,			\
+	.fail_vcpu_run_handler	= fail_vcpu_run_mmio_no_syndrome_handler,	\
+	.expected_events	= { .fail_vcpu_runs = 1,			\
+				    .uffd_faults = _uffd_faults },		\
+}
+
+static struct test_desc tests[] = {
+
+	/* Check that HW is setting the Access Flag (AF) (sanity checks). */
+	TEST_ACCESS(guest_read64, with_af, CMD_NONE),
+	TEST_ACCESS(guest_ld_preidx, with_af, CMD_NONE),
+	TEST_ACCESS(guest_cas, with_af, CMD_NONE),
+	TEST_ACCESS(guest_write64, with_af, CMD_NONE),
+	TEST_ACCESS(guest_st_preidx, with_af, CMD_NONE),
+	TEST_ACCESS(guest_dc_zva, with_af, CMD_NONE),
+	TEST_ACCESS(guest_exec, with_af, CMD_NONE),
+
+	/*
+	 * Punch a hole in the data backing store, and then try multiple
+	 * accesses: reads should rturn zeroes, and writes should
+	 * re-populate the page. Moreover, the test also check that no
+	 * exception was generated in the guest.  Note that this
+	 * reading/writing behavior is the same as reading/writing a
+	 * punched page (with fallocate(FALLOC_FL_PUNCH_HOLE)) from
+	 * userspace.
+	 */
+	TEST_ACCESS(guest_read64, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_cas, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_ld_preidx, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_write64, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_st_preidx, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_at, no_af, CMD_HOLE_DATA),
+	TEST_ACCESS(guest_dc_zva, no_af, CMD_HOLE_DATA),
+
+	/*
+	 * Punch holes in the data and PT backing stores and mark them for
+	 * userfaultfd handling. This should result in 2 faults: the access
+	 * on the data backing store, and its respective S1 page table walk
+	 * (S1PTW).
+	 */
+	TEST_UFFD(guest_read64, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_read64, no_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_cas, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	/*
+	 * Can't test guest_at with_af as it's IMPDEF whether the AF is set.
+	 * The S1PTW fault should still be marked as a write.
+	 */
+	TEST_UFFD(guest_at, no_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_no_handler, uffd_pt_handler, 1),
+	TEST_UFFD(guest_ld_preidx, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_write64, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_dc_zva, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_st_preidx, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+	TEST_UFFD(guest_exec, with_af, CMD_HOLE_DATA | CMD_HOLE_PT,
+		  uffd_data_handler, uffd_pt_handler, 2),
+
+	/*
+	 * Try accesses when the data and PT memory regions are both
+	 * tracked for dirty logging.
+	 */
+	TEST_DIRTY_LOG(guest_read64, with_af, guest_check_no_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_read64, no_af, guest_check_no_write_in_dirty_log,
+		       guest_check_no_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_ld_preidx, with_af,
+		       guest_check_no_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_at, no_af, guest_check_no_write_in_dirty_log,
+		       guest_check_no_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_exec, with_af, guest_check_no_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_write64, with_af, guest_check_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_cas, with_af, guest_check_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_dc_zva, with_af, guest_check_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+	TEST_DIRTY_LOG(guest_st_preidx, with_af, guest_check_write_in_dirty_log,
+		       guest_check_s1ptw_wr_in_dirty_log),
+
+	/*
+	 * Access when the data and PT memory regions are both marked for
+	 * dirty logging and UFFD at the same time. The expected result is
+	 * that writes should mark the dirty log and trigger a userfaultfd
+	 * write fault.  Reads/execs should result in a read userfaultfd
+	 * fault, and nothing in the dirty log.  Any S1PTW should result in
+	 * a write in the dirty log and a userfaultfd write.
+	 */
+	TEST_UFFD_AND_DIRTY_LOG(guest_read64, with_af,
+				uffd_data_handler, 2,
+				guest_check_no_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_read64, no_af,
+				uffd_data_handler, 2,
+				guest_check_no_write_in_dirty_log,
+				guest_check_no_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_ld_preidx, with_af,
+				uffd_data_handler,
+				2, guest_check_no_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_at, with_af, uffd_no_handler, 1,
+				guest_check_no_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_exec, with_af,
+				uffd_data_handler, 2,
+				guest_check_no_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_write64, with_af,
+				uffd_data_handler,
+				2, guest_check_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_cas, with_af,
+				uffd_data_handler, 2,
+				guest_check_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_dc_zva, with_af,
+				uffd_data_handler,
+				2, guest_check_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	TEST_UFFD_AND_DIRTY_LOG(guest_st_preidx, with_af,
+				uffd_data_handler, 2,
+				guest_check_write_in_dirty_log,
+				guest_check_s1ptw_wr_in_dirty_log),
+	/*
+	 * Access when both the PT and data regions are marked read-only
+	 * (with KVM_MEM_READONLY). Writes with a syndrome result in an
+	 * MMIO exit, writes with no syndrome (e.g., CAS) result in a
+	 * failed vcpu run, and reads/execs with and without syndroms do
+	 * not fault.
+	 */
+	TEST_RO_MEMSLOT(guest_read64, 0, 0),
+	TEST_RO_MEMSLOT(guest_ld_preidx, 0, 0),
+	TEST_RO_MEMSLOT(guest_at, 0, 0),
+	TEST_RO_MEMSLOT(guest_exec, 0, 0),
+	TEST_RO_MEMSLOT(guest_write64, mmio_on_test_gpa_handler, 1),
+	TEST_RO_MEMSLOT_NO_SYNDROME(guest_dc_zva),
+	TEST_RO_MEMSLOT_NO_SYNDROME(guest_cas),
+	TEST_RO_MEMSLOT_NO_SYNDROME(guest_st_preidx),
+
+	/*
+	 * The PT and data regions are both read-only and marked
+	 * for dirty logging at the same time. The expected result is that
+	 * for writes there should be no write in the dirty log. The
+	 * readonly handling is the same as if the memslot was not marked
+	 * for dirty logging: writes with a syndrome result in an MMIO
+	 * exit, and writes with no syndrome result in a failed vcpu run.
+	 */
+	TEST_RO_MEMSLOT_AND_DIRTY_LOG(guest_read64, 0, 0,
+				      guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_AND_DIRTY_LOG(guest_ld_preidx, 0, 0,
+				      guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_AND_DIRTY_LOG(guest_at, 0, 0,
+				      guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_AND_DIRTY_LOG(guest_exec, 0, 0,
+				      guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_AND_DIRTY_LOG(guest_write64, mmio_on_test_gpa_handler,
+				      1, guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_DIRTY_LOG(guest_dc_zva,
+						  guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_DIRTY_LOG(guest_cas,
+						  guest_check_no_write_in_dirty_log),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_DIRTY_LOG(guest_st_preidx,
+						  guest_check_no_write_in_dirty_log),
+
+	/*
+	 * The PT and data regions are both read-only and punched with
+	 * holes tracked with userfaultfd.  The expected result is the
+	 * union of both userfaultfd and read-only behaviors. For example,
+	 * write accesses result in a userfaultfd write fault and an MMIO
+	 * exit.  Writes with no syndrome result in a failed vcpu run and
+	 * no userfaultfd write fault. Reads result in userfaultfd getting
+	 * triggered.
+	 */
+	TEST_RO_MEMSLOT_AND_UFFD(guest_read64, 0, 0, uffd_data_handler, 2),
+	TEST_RO_MEMSLOT_AND_UFFD(guest_ld_preidx, 0, 0, uffd_data_handler, 2),
+	TEST_RO_MEMSLOT_AND_UFFD(guest_at, 0, 0, uffd_no_handler, 1),
+	TEST_RO_MEMSLOT_AND_UFFD(guest_exec, 0, 0, uffd_data_handler, 2),
+	TEST_RO_MEMSLOT_AND_UFFD(guest_write64, mmio_on_test_gpa_handler, 1,
+				 uffd_data_handler, 2),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_UFFD(guest_cas, uffd_data_handler, 2),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_UFFD(guest_dc_zva, uffd_no_handler, 1),
+	TEST_RO_MEMSLOT_NO_SYNDROME_AND_UFFD(guest_st_preidx, uffd_no_handler, 1),
+
+	{ 0 }
+};
+
+static void for_each_test_and_guest_mode(enum vm_mem_backing_src_type src_type)
+{
+	struct test_desc *t;
+
+	for (t = &tests[0]; t->name; t++) {
+		if (t->skip)
+			continue;
+
+		struct test_params p = {
+			.src_type = src_type,
+			.test_desc = t,
+		};
+
+		for_each_guest_mode(run_test, &p);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	enum vm_mem_backing_src_type src_type;
+	int opt;
+
+	src_type = DEFAULT_VM_MEM_SRC;
+
+	while ((opt = getopt(argc, argv, "hm:s:")) != -1) {
+		switch (opt) {
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 's':
+			src_type = parse_backing_src_type(optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			exit(0);
+		}
+	}
+
+	for_each_test_and_guest_mode(src_type);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/psci_test.c b/tools/testing/selftests/kvm/arm64/psci_test.c
new file mode 100644
index 000000000000..98e49f710aef
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/psci_test.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * psci_test - Tests relating to KVM's PSCI implementation.
+ *
+ * Copyright (c) 2021 Google LLC.
+ *
+ * This test includes:
+ *  - A regression test for a race between KVM servicing the PSCI CPU_ON call
+ *    and userspace reading the targeted vCPU's registers.
+ *  - A test for KVM's handling of PSCI SYSTEM_SUSPEND and the associated
+ *    KVM_SYSTEM_EVENT_SUSPEND UAPI.
+ */
+
+#include <linux/kernel.h>
+#include <linux/psci.h>
+#include <asm/cputype.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+
+#define CPU_ON_ENTRY_ADDR 0xfeedf00dul
+#define CPU_ON_CONTEXT_ID 0xdeadc0deul
+
+static uint64_t psci_cpu_on(uint64_t target_cpu, uint64_t entry_addr,
+			    uint64_t context_id)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(PSCI_0_2_FN64_CPU_ON, target_cpu, entry_addr, context_id,
+		  0, 0, 0, 0, &res);
+
+	return res.a0;
+}
+
+static uint64_t psci_affinity_info(uint64_t target_affinity,
+				   uint64_t lowest_affinity_level)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(PSCI_0_2_FN64_AFFINITY_INFO, target_affinity, lowest_affinity_level,
+		  0, 0, 0, 0, 0, &res);
+
+	return res.a0;
+}
+
+static uint64_t psci_system_suspend(uint64_t entry_addr, uint64_t context_id)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(PSCI_1_0_FN64_SYSTEM_SUSPEND, entry_addr, context_id,
+		  0, 0, 0, 0, 0, &res);
+
+	return res.a0;
+}
+
+static uint64_t psci_system_off2(uint64_t type, uint64_t cookie)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(PSCI_1_3_FN64_SYSTEM_OFF2, type, cookie, 0, 0, 0, 0, 0, &res);
+
+	return res.a0;
+}
+
+static uint64_t psci_features(uint32_t func_id)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(PSCI_1_0_FN_PSCI_FEATURES, func_id, 0, 0, 0, 0, 0, 0, &res);
+
+	return res.a0;
+}
+
+static void vcpu_power_off(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mp_state mp_state = {
+		.mp_state = KVM_MP_STATE_STOPPED,
+	};
+
+	vcpu_mp_state_set(vcpu, &mp_state);
+}
+
+static struct kvm_vm *setup_vm(void *guest_code, struct kvm_vcpu **source,
+			       struct kvm_vcpu **target)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vm *vm;
+
+	vm = vm_create(2);
+
+	kvm_get_default_vcpu_target(vm, &init);
+	init.features[0] |= (1 << KVM_ARM_VCPU_PSCI_0_2);
+
+	*source = aarch64_vcpu_add(vm, 0, &init, guest_code);
+	*target = aarch64_vcpu_add(vm, 1, &init, guest_code);
+
+	kvm_arch_vm_finalize_vcpus(vm);
+	return vm;
+}
+
+static void enter_guest(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+	if (get_ucall(vcpu, &uc) == UCALL_ABORT)
+		REPORT_GUEST_ASSERT(uc);
+}
+
+static void assert_vcpu_reset(struct kvm_vcpu *vcpu)
+{
+	uint64_t obs_pc, obs_x0;
+
+	obs_pc = vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc));
+	obs_x0 = vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.regs[0]));
+
+	TEST_ASSERT(obs_pc == CPU_ON_ENTRY_ADDR,
+		    "unexpected target cpu pc: %lx (expected: %lx)",
+		    obs_pc, CPU_ON_ENTRY_ADDR);
+	TEST_ASSERT(obs_x0 == CPU_ON_CONTEXT_ID,
+		    "unexpected target context id: %lx (expected: %lx)",
+		    obs_x0, CPU_ON_CONTEXT_ID);
+}
+
+static void guest_test_cpu_on(uint64_t target_cpu)
+{
+	uint64_t target_state;
+
+	GUEST_ASSERT(!psci_cpu_on(target_cpu, CPU_ON_ENTRY_ADDR, CPU_ON_CONTEXT_ID));
+
+	do {
+		target_state = psci_affinity_info(target_cpu, 0);
+
+		GUEST_ASSERT((target_state == PSCI_0_2_AFFINITY_LEVEL_ON) ||
+			     (target_state == PSCI_0_2_AFFINITY_LEVEL_OFF));
+	} while (target_state != PSCI_0_2_AFFINITY_LEVEL_ON);
+
+	GUEST_DONE();
+}
+
+static void host_test_cpu_on(void)
+{
+	struct kvm_vcpu *source, *target;
+	uint64_t target_mpidr;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = setup_vm(guest_test_cpu_on, &source, &target);
+
+	/*
+	 * make sure the target is already off when executing the test.
+	 */
+	vcpu_power_off(target);
+
+	target_mpidr = vcpu_get_reg(target, KVM_ARM64_SYS_REG(SYS_MPIDR_EL1));
+	vcpu_args_set(source, 1, target_mpidr & MPIDR_HWID_BITMASK);
+	enter_guest(source);
+
+	if (get_ucall(source, &uc) != UCALL_DONE)
+		TEST_FAIL("Unhandled ucall: %lu", uc.cmd);
+
+	assert_vcpu_reset(target);
+	kvm_vm_free(vm);
+}
+
+static void guest_test_system_suspend(void)
+{
+	uint64_t ret;
+
+	/* assert that SYSTEM_SUSPEND is discoverable */
+	GUEST_ASSERT(!psci_features(PSCI_1_0_FN_SYSTEM_SUSPEND));
+	GUEST_ASSERT(!psci_features(PSCI_1_0_FN64_SYSTEM_SUSPEND));
+
+	ret = psci_system_suspend(CPU_ON_ENTRY_ADDR, CPU_ON_CONTEXT_ID);
+	GUEST_SYNC(ret);
+}
+
+static void host_test_system_suspend(void)
+{
+	struct kvm_vcpu *source, *target;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+
+	vm = setup_vm(guest_test_system_suspend, &source, &target);
+	vm_enable_cap(vm, KVM_CAP_ARM_SYSTEM_SUSPEND, 0);
+
+	vcpu_power_off(target);
+	run = source->run;
+
+	enter_guest(source);
+
+	TEST_ASSERT_KVM_EXIT_REASON(source, KVM_EXIT_SYSTEM_EVENT);
+	TEST_ASSERT(run->system_event.type == KVM_SYSTEM_EVENT_SUSPEND,
+		    "Unhandled system event: %u (expected: %u)",
+		    run->system_event.type, KVM_SYSTEM_EVENT_SUSPEND);
+
+	kvm_vm_free(vm);
+}
+
+static void guest_test_system_off2(void)
+{
+	uint64_t ret;
+
+	/* assert that SYSTEM_OFF2 is discoverable */
+	GUEST_ASSERT(psci_features(PSCI_1_3_FN_SYSTEM_OFF2) &
+		     PSCI_1_3_OFF_TYPE_HIBERNATE_OFF);
+	GUEST_ASSERT(psci_features(PSCI_1_3_FN64_SYSTEM_OFF2) &
+		     PSCI_1_3_OFF_TYPE_HIBERNATE_OFF);
+
+	/* With non-zero 'cookie' field, it should fail */
+	ret = psci_system_off2(PSCI_1_3_OFF_TYPE_HIBERNATE_OFF, 1);
+	GUEST_ASSERT(ret == PSCI_RET_INVALID_PARAMS);
+
+	/*
+	 * This would normally never return, so KVM sets the return value
+	 * to PSCI_RET_INTERNAL_FAILURE. The test case *does* return, so
+	 * that it can test both values for HIBERNATE_OFF.
+	 */
+	ret = psci_system_off2(PSCI_1_3_OFF_TYPE_HIBERNATE_OFF, 0);
+	GUEST_ASSERT(ret == PSCI_RET_INTERNAL_FAILURE);
+
+	/*
+	 * Revision F.b of the PSCI v1.3 specification documents zero as an
+	 * alias for HIBERNATE_OFF, since that's the value used in earlier
+	 * revisions of the spec and some implementations in the field.
+	 */
+	ret = psci_system_off2(0, 1);
+	GUEST_ASSERT(ret == PSCI_RET_INVALID_PARAMS);
+
+	ret = psci_system_off2(0, 0);
+	GUEST_ASSERT(ret == PSCI_RET_INTERNAL_FAILURE);
+
+	GUEST_DONE();
+}
+
+static void host_test_system_off2(void)
+{
+	struct kvm_vcpu *source, *target;
+	struct kvm_mp_state mps;
+	uint64_t psci_version = 0;
+	int nr_shutdowns = 0;
+	struct kvm_run *run;
+	struct ucall uc;
+
+	setup_vm(guest_test_system_off2, &source, &target);
+
+	psci_version = vcpu_get_reg(target, KVM_REG_ARM_PSCI_VERSION);
+
+	TEST_ASSERT(psci_version >= PSCI_VERSION(1, 3),
+		    "Unexpected PSCI version %lu.%lu",
+		    PSCI_VERSION_MAJOR(psci_version),
+		    PSCI_VERSION_MINOR(psci_version));
+
+	vcpu_power_off(target);
+	run = source->run;
+
+	enter_guest(source);
+	while (run->exit_reason == KVM_EXIT_SYSTEM_EVENT) {
+		TEST_ASSERT(run->system_event.type == KVM_SYSTEM_EVENT_SHUTDOWN,
+			    "Unhandled system event: %u (expected: %u)",
+			    run->system_event.type, KVM_SYSTEM_EVENT_SHUTDOWN);
+		TEST_ASSERT(run->system_event.ndata >= 1,
+			    "Unexpected amount of system event data: %u (expected, >= 1)",
+			    run->system_event.ndata);
+		TEST_ASSERT(run->system_event.data[0] & KVM_SYSTEM_EVENT_SHUTDOWN_FLAG_PSCI_OFF2,
+			    "PSCI_OFF2 flag not set. Flags %llu (expected %llu)",
+			    run->system_event.data[0], KVM_SYSTEM_EVENT_SHUTDOWN_FLAG_PSCI_OFF2);
+
+		nr_shutdowns++;
+
+		/* Restart the vCPU */
+	        mps.mp_state = KVM_MP_STATE_RUNNABLE;
+		vcpu_mp_state_set(source, &mps);
+
+		enter_guest(source);
+	}
+
+	TEST_ASSERT(get_ucall(source, &uc) == UCALL_DONE, "Guest did not exit cleanly");
+	TEST_ASSERT(nr_shutdowns == 2, "Two shutdown events were expected, but saw %d", nr_shutdowns);
+}
+
+int main(void)
+{
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_SYSTEM_SUSPEND));
+
+	host_test_cpu_on();
+	host_test_system_suspend();
+	host_test_system_off2();
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/sea_to_user.c b/tools/testing/selftests/kvm/arm64/sea_to_user.c
new file mode 100644
index 000000000000..573dd790aeb8
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/sea_to_user.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test KVM returns to userspace with KVM_EXIT_ARM_SEA if host APEI fails
+ * to handle SEA and userspace has opt-ed in KVM_CAP_ARM_SEA_TO_USER.
+ *
+ * After reaching userspace with expected arm_sea info, also test userspace
+ * injecting a synchronous external data abort into the guest.
+ *
+ * This test utilizes EINJ to generate a REAL synchronous external data
+ * abort by consuming a recoverable uncorrectable memory error. Therefore
+ * the device under test must support EINJ in both firmware and host kernel,
+ * including the notrigger feature. Otherwise the test will be skipped.
+ * The under-test platform's APEI should be unable to claim SEA. Otherwise
+ * the test will also be skipped.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "guest_modes.h"
+
+#define PAGE_PRESENT		(1ULL << 63)
+#define PAGE_PHYSICAL		0x007fffffffffffffULL
+#define PAGE_ADDR_MASK		(~(0xfffULL))
+
+/* Group ISV and ISS[23:14]. */
+#define ESR_ELx_INST_SYNDROME	((ESR_ELx_ISV) | (ESR_ELx_SAS) | \
+				 (ESR_ELx_SSE) | (ESR_ELx_SRT_MASK) | \
+				 (ESR_ELx_SF) | (ESR_ELx_AR))
+
+#define EINJ_ETYPE		"/sys/kernel/debug/apei/einj/error_type"
+#define EINJ_ADDR		"/sys/kernel/debug/apei/einj/param1"
+#define EINJ_MASK		"/sys/kernel/debug/apei/einj/param2"
+#define EINJ_FLAGS		"/sys/kernel/debug/apei/einj/flags"
+#define EINJ_NOTRIGGER		"/sys/kernel/debug/apei/einj/notrigger"
+#define EINJ_DOIT		"/sys/kernel/debug/apei/einj/error_inject"
+/* Memory Uncorrectable non-fatal. */
+#define ERROR_TYPE_MEMORY_UER	0x10
+/* Memory address and mask valid (param1 and param2). */
+#define MASK_MEMORY_UER		0b10
+
+/* Guest virtual address region = [2G, 3G).  */
+#define START_GVA		0x80000000UL
+#define VM_MEM_SIZE		0x40000000UL
+/* Note: EINJ_OFFSET must < VM_MEM_SIZE. */
+#define EINJ_OFFSET		0x01234badUL
+#define EINJ_GVA		((START_GVA) + (EINJ_OFFSET))
+
+static vm_paddr_t einj_gpa;
+static void *einj_hva;
+static uint64_t einj_hpa;
+static bool far_invalid;
+
+static uint64_t translate_to_host_paddr(unsigned long vaddr)
+{
+	uint64_t pinfo;
+	int64_t offset = vaddr / getpagesize() * sizeof(pinfo);
+	int fd;
+	uint64_t page_addr;
+	uint64_t paddr;
+
+	fd = open("/proc/self/pagemap", O_RDONLY);
+	if (fd < 0)
+		ksft_exit_fail_perror("Failed to open /proc/self/pagemap");
+	if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
+		close(fd);
+		ksft_exit_fail_perror("Failed to read /proc/self/pagemap");
+	}
+
+	close(fd);
+
+	if ((pinfo & PAGE_PRESENT) == 0)
+		ksft_exit_fail_perror("Page not present");
+
+	page_addr = (pinfo & PAGE_PHYSICAL) << MIN_PAGE_SHIFT;
+	paddr = page_addr + (vaddr & (getpagesize() - 1));
+	return paddr;
+}
+
+static void write_einj_entry(const char *einj_path, uint64_t val)
+{
+	char cmd[256] = {0};
+	FILE *cmdfile = NULL;
+
+	sprintf(cmd, "echo %#lx > %s", val, einj_path);
+	cmdfile = popen(cmd, "r");
+
+	if (pclose(cmdfile) == 0)
+		ksft_print_msg("echo %#lx > %s - done\n", val, einj_path);
+	else
+		ksft_exit_fail_perror("Failed to write EINJ entry");
+}
+
+static void inject_uer(uint64_t paddr)
+{
+	if (access("/sys/firmware/acpi/tables/EINJ", R_OK) == -1)
+		ksft_test_result_skip("EINJ table no available in firmware");
+
+	if (access(EINJ_ETYPE, R_OK | W_OK) == -1)
+		ksft_test_result_skip("EINJ module probably not loaded?");
+
+	write_einj_entry(EINJ_ETYPE, ERROR_TYPE_MEMORY_UER);
+	write_einj_entry(EINJ_FLAGS, MASK_MEMORY_UER);
+	write_einj_entry(EINJ_ADDR, paddr);
+	write_einj_entry(EINJ_MASK, ~0x0UL);
+	write_einj_entry(EINJ_NOTRIGGER, 1);
+	write_einj_entry(EINJ_DOIT, 1);
+}
+
+/*
+ * When host APEI successfully claims the SEA caused by guest_code, kernel
+ * will send SIGBUS signal with BUS_MCEERR_AR to test thread.
+ *
+ * We set up this SIGBUS handler to skip the test for that case.
+ */
+static void sigbus_signal_handler(int sig, siginfo_t *si, void *v)
+{
+	ksft_print_msg("SIGBUS (%d) received, dumping siginfo...\n", sig);
+	ksft_print_msg("si_signo=%d, si_errno=%d, si_code=%d, si_addr=%p\n",
+		       si->si_signo, si->si_errno, si->si_code, si->si_addr);
+	if (si->si_code == BUS_MCEERR_AR)
+		ksft_test_result_skip("SEA is claimed by host APEI\n");
+	else
+		ksft_test_result_fail("Exit with signal unhandled\n");
+
+	exit(0);
+}
+
+static void setup_sigbus_handler(void)
+{
+	struct sigaction act;
+
+	memset(&act, 0, sizeof(act));
+	sigemptyset(&act.sa_mask);
+	act.sa_sigaction = sigbus_signal_handler;
+	act.sa_flags = SA_SIGINFO;
+	TEST_ASSERT(sigaction(SIGBUS, &act, NULL) == 0,
+		    "Failed to setup SIGBUS handler");
+}
+
+static void guest_code(void)
+{
+	uint64_t guest_data;
+
+	/* Consumes error will cause a SEA. */
+	guest_data = *(uint64_t *)EINJ_GVA;
+
+	GUEST_FAIL("Poison not protected by SEA: gva=%#lx, guest_data=%#lx\n",
+		   EINJ_GVA, guest_data);
+}
+
+static void expect_sea_handler(struct ex_regs *regs)
+{
+	u64 esr = read_sysreg(esr_el1);
+	u64 far = read_sysreg(far_el1);
+	bool expect_far_invalid = far_invalid;
+
+	GUEST_PRINTF("Handling Guest SEA\n");
+	GUEST_PRINTF("ESR_EL1=%#lx, FAR_EL1=%#lx\n", esr, far);
+
+	GUEST_ASSERT_EQ(ESR_ELx_EC(esr), ESR_ELx_EC_DABT_CUR);
+	GUEST_ASSERT_EQ(esr & ESR_ELx_FSC_TYPE, ESR_ELx_FSC_EXTABT);
+
+	if (expect_far_invalid) {
+		GUEST_ASSERT_EQ(esr & ESR_ELx_FnV, ESR_ELx_FnV);
+		GUEST_PRINTF("Guest observed garbage value in FAR\n");
+	} else {
+		GUEST_ASSERT_EQ(esr & ESR_ELx_FnV, 0);
+		GUEST_ASSERT_EQ(far, EINJ_GVA);
+	}
+
+	GUEST_DONE();
+}
+
+static void vcpu_inject_sea(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_events events = {};
+
+	events.exception.ext_dabt_pending = true;
+	vcpu_events_set(vcpu, &events);
+}
+
+static void run_vm(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+	bool guest_done = false;
+	struct kvm_run *run = vcpu->run;
+	u64 esr;
+
+	/* Resume the vCPU after error injection to consume the error. */
+	vcpu_run(vcpu);
+
+	ksft_print_msg("Dump kvm_run info about KVM_EXIT_%s\n",
+		       exit_reason_str(run->exit_reason));
+	ksft_print_msg("kvm_run.arm_sea: esr=%#llx, flags=%#llx\n",
+		       run->arm_sea.esr, run->arm_sea.flags);
+	ksft_print_msg("kvm_run.arm_sea: gva=%#llx, gpa=%#llx\n",
+		       run->arm_sea.gva, run->arm_sea.gpa);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_ARM_SEA);
+
+	esr = run->arm_sea.esr;
+	TEST_ASSERT_EQ(ESR_ELx_EC(esr), ESR_ELx_EC_DABT_LOW);
+	TEST_ASSERT_EQ(esr & ESR_ELx_FSC_TYPE, ESR_ELx_FSC_EXTABT);
+	TEST_ASSERT_EQ(ESR_ELx_ISS2(esr), 0);
+	TEST_ASSERT_EQ((esr & ESR_ELx_INST_SYNDROME), 0);
+	TEST_ASSERT_EQ(esr & ESR_ELx_VNCR, 0);
+
+	if (!(esr & ESR_ELx_FnV)) {
+		ksft_print_msg("Expect gva to match given FnV bit is 0\n");
+		TEST_ASSERT_EQ(run->arm_sea.gva, EINJ_GVA);
+	}
+
+	if (run->arm_sea.flags & KVM_EXIT_ARM_SEA_FLAG_GPA_VALID) {
+		ksft_print_msg("Expect gpa to match given KVM_EXIT_ARM_SEA_FLAG_GPA_VALID is set\n");
+		TEST_ASSERT_EQ(run->arm_sea.gpa, einj_gpa & PAGE_ADDR_MASK);
+	}
+
+	far_invalid = esr & ESR_ELx_FnV;
+
+	/* Inject a SEA into guest and expect handled in SEA handler. */
+	vcpu_inject_sea(vcpu);
+
+	/* Expect the guest to reach GUEST_DONE gracefully. */
+	do {
+		vcpu_run(vcpu);
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_PRINTF:
+			ksft_print_msg("From guest: %s", uc.buffer);
+			break;
+		case UCALL_DONE:
+			ksft_print_msg("Guest done gracefully!\n");
+			guest_done = 1;
+			break;
+		case UCALL_ABORT:
+			ksft_print_msg("Guest aborted!\n");
+			guest_done = 1;
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		default:
+			TEST_FAIL("Unexpected ucall: %lu\n", uc.cmd);
+		}
+	} while (!guest_done);
+}
+
+static struct kvm_vm *vm_create_with_sea_handler(struct kvm_vcpu **vcpu)
+{
+	size_t backing_page_size;
+	size_t guest_page_size;
+	size_t alignment;
+	uint64_t num_guest_pages;
+	vm_paddr_t start_gpa;
+	enum vm_mem_backing_src_type src_type = VM_MEM_SRC_ANONYMOUS_HUGETLB_1GB;
+	struct kvm_vm *vm;
+
+	backing_page_size = get_backing_src_pagesz(src_type);
+	guest_page_size = vm_guest_mode_params[VM_MODE_DEFAULT].page_size;
+	alignment = max(backing_page_size, guest_page_size);
+	num_guest_pages = VM_MEM_SIZE / guest_page_size;
+
+	vm = __vm_create_with_one_vcpu(vcpu, num_guest_pages, guest_code);
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(*vcpu);
+
+	vm_install_sync_handler(vm,
+		/*vector=*/VECTOR_SYNC_CURRENT,
+		/*ec=*/ESR_ELx_EC_DABT_CUR,
+		/*handler=*/expect_sea_handler);
+
+	start_gpa = (vm->max_gfn - num_guest_pages) * guest_page_size;
+	start_gpa = align_down(start_gpa, alignment);
+
+	vm_userspace_mem_region_add(
+		/*vm=*/vm,
+		/*src_type=*/src_type,
+		/*guest_paddr=*/start_gpa,
+		/*slot=*/1,
+		/*npages=*/num_guest_pages,
+		/*flags=*/0);
+
+	virt_map(vm, START_GVA, start_gpa, num_guest_pages);
+
+	ksft_print_msg("Mapped %#lx pages: gva=%#lx to gpa=%#lx\n",
+		       num_guest_pages, START_GVA, start_gpa);
+	return vm;
+}
+
+static void vm_inject_memory_uer(struct kvm_vm *vm)
+{
+	uint64_t guest_data;
+
+	einj_gpa = addr_gva2gpa(vm, EINJ_GVA);
+	einj_hva = addr_gva2hva(vm, EINJ_GVA);
+
+	/* Populate certain data before injecting UER. */
+	*(uint64_t *)einj_hva = 0xBAADCAFE;
+	guest_data = *(uint64_t *)einj_hva;
+	ksft_print_msg("Before EINJect: data=%#lx\n",
+		guest_data);
+
+	einj_hpa = translate_to_host_paddr((unsigned long)einj_hva);
+
+	ksft_print_msg("EINJ_GVA=%#lx, einj_gpa=%#lx, einj_hva=%p, einj_hpa=%#lx\n",
+		       EINJ_GVA, einj_gpa, einj_hva, einj_hpa);
+
+	inject_uer(einj_hpa);
+	ksft_print_msg("Memory UER EINJected\n");
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_SEA_TO_USER));
+
+	setup_sigbus_handler();
+
+	vm = vm_create_with_sea_handler(&vcpu);
+	vm_enable_cap(vm, KVM_CAP_ARM_SEA_TO_USER, 0);
+	vm_inject_memory_uer(vm);
+	run_vm(vm, vcpu);
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/set_id_regs.c b/tools/testing/selftests/kvm/arm64/set_id_regs.c
new file mode 100644
index 000000000000..c4815d365816
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/set_id_regs.c
@@ -0,0 +1,813 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * set_id_regs - Test for setting ID register from usersapce.
+ *
+ * Copyright (c) 2023 Google LLC.
+ *
+ *
+ * Test that KVM supports setting ID registers from userspace and handles the
+ * feature set correctly.
+ */
+
+#include <stdint.h>
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+#include <linux/bitfield.h>
+
+enum ftr_type {
+	FTR_EXACT,			/* Use a predefined safe value */
+	FTR_LOWER_SAFE,			/* Smaller value is safe */
+	FTR_HIGHER_SAFE,		/* Bigger value is safe */
+	FTR_HIGHER_OR_ZERO_SAFE,	/* Bigger value is safe, but 0 is biggest */
+	FTR_END,			/* Mark the last ftr bits */
+};
+
+#define FTR_SIGNED	true	/* Value should be treated as signed */
+#define FTR_UNSIGNED	false	/* Value should be treated as unsigned */
+
+struct reg_ftr_bits {
+	char *name;
+	bool sign;
+	enum ftr_type type;
+	uint8_t shift;
+	uint64_t mask;
+	/*
+	 * For FTR_EXACT, safe_val is used as the exact safe value.
+	 * For FTR_LOWER_SAFE, safe_val is used as the minimal safe value.
+	 */
+	int64_t safe_val;
+};
+
+struct test_feature_reg {
+	uint32_t reg;
+	const struct reg_ftr_bits *ftr_bits;
+};
+
+#define __REG_FTR_BITS(NAME, SIGNED, TYPE, SHIFT, MASK, SAFE_VAL)	\
+	{								\
+		.name = #NAME,						\
+		.sign = SIGNED,						\
+		.type = TYPE,						\
+		.shift = SHIFT,						\
+		.mask = MASK,						\
+		.safe_val = SAFE_VAL,					\
+	}
+
+#define REG_FTR_BITS(type, reg, field, safe_val) \
+	__REG_FTR_BITS(reg##_##field, FTR_UNSIGNED, type, reg##_##field##_SHIFT, \
+		       reg##_##field##_MASK, safe_val)
+
+#define S_REG_FTR_BITS(type, reg, field, safe_val) \
+	__REG_FTR_BITS(reg##_##field, FTR_SIGNED, type, reg##_##field##_SHIFT, \
+		       reg##_##field##_MASK, safe_val)
+
+#define REG_FTR_END					\
+	{						\
+		.type = FTR_END,			\
+	}
+
+static const struct reg_ftr_bits ftr_id_aa64dfr0_el1[] = {
+	S_REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64DFR0_EL1, DoubleLock, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64DFR0_EL1, WRPs, 0),
+	S_REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64DFR0_EL1, PMUVer, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64DFR0_EL1, DebugVer, ID_AA64DFR0_EL1_DebugVer_IMP),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_dfr0_el1[] = {
+	S_REG_FTR_BITS(FTR_LOWER_SAFE, ID_DFR0_EL1, PerfMon, ID_DFR0_EL1_PerfMon_PMUv3),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_DFR0_EL1, CopDbg, ID_DFR0_EL1_CopDbg_Armv8),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64isar0_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, RNDR, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, TLB, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, TS, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, FHM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, DP, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SM4, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SM3, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SHA3, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, RDM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, TME, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, ATOMIC, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, CRC32, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SHA2, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, SHA1, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR0_EL1, AES, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64isar1_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, LS64, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, XS, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, I8MM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, DGH, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, BF16, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, SPECRES, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, SB, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, FRINTTS, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, LRCPC, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, FCMA, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, JSCVT, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR1_EL1, DPB, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64isar2_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR2_EL1, BC, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR2_EL1, RPRES, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR2_EL1, WFxT, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64isar3_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR3_EL1, FPRCVT, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR3_EL1, LSFE, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ISAR3_EL1, FAMINMAX, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64pfr0_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, CSV3, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, CSV2, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, DIT, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, SEL2, 0),
+	REG_FTR_BITS(FTR_EXACT, ID_AA64PFR0_EL1, GIC, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, EL3, 1),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, EL2, 1),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, EL1, 1),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR0_EL1, EL0, 1),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64pfr1_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR1_EL1, DF2, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR1_EL1, CSV2_frac, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR1_EL1, SSBS, ID_AA64PFR1_EL1_SSBS_NI),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64PFR1_EL1, BT, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64mmfr0_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, ECV, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, EXS, 0),
+	REG_FTR_BITS(FTR_EXACT, ID_AA64MMFR0_EL1, TGRAN4_2, 1),
+	REG_FTR_BITS(FTR_EXACT, ID_AA64MMFR0_EL1, TGRAN64_2, 1),
+	REG_FTR_BITS(FTR_EXACT, ID_AA64MMFR0_EL1, TGRAN16_2, 1),
+	S_REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, TGRAN4, 0),
+	S_REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, TGRAN64, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, TGRAN16, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, BIGENDEL0, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, SNSMEM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, BIGEND, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR0_EL1, PARANGE, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64mmfr1_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, TIDCP1, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, AFP, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, HCX, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, ETS, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, TWED, 0),
+	REG_FTR_BITS(FTR_HIGHER_SAFE, ID_AA64MMFR1_EL1, SpecSEI, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, PAN, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, LO, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, HPDS, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR1_EL1, HAFDBS, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64mmfr2_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, E0PD, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, BBM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, TTL, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, AT, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, ST, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, VARange, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, IESB, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, LSM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, UAO, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR2_EL1, CnP, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64mmfr3_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR3_EL1, S1POE, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR3_EL1, S1PIE, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR3_EL1, SCTLRX, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64MMFR3_EL1, TCRX, 0),
+	REG_FTR_END,
+};
+
+static const struct reg_ftr_bits ftr_id_aa64zfr0_el1[] = {
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, F64MM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, F32MM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, I8MM, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, SM4, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, SHA3, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, BF16, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, BitPerm, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, AES, 0),
+	REG_FTR_BITS(FTR_LOWER_SAFE, ID_AA64ZFR0_EL1, SVEver, 0),
+	REG_FTR_END,
+};
+
+#define TEST_REG(id, table)			\
+	{					\
+		.reg = id,			\
+		.ftr_bits = &((table)[0]),	\
+	}
+
+static struct test_feature_reg test_regs[] = {
+	TEST_REG(SYS_ID_AA64DFR0_EL1, ftr_id_aa64dfr0_el1),
+	TEST_REG(SYS_ID_DFR0_EL1, ftr_id_dfr0_el1),
+	TEST_REG(SYS_ID_AA64ISAR0_EL1, ftr_id_aa64isar0_el1),
+	TEST_REG(SYS_ID_AA64ISAR1_EL1, ftr_id_aa64isar1_el1),
+	TEST_REG(SYS_ID_AA64ISAR2_EL1, ftr_id_aa64isar2_el1),
+	TEST_REG(SYS_ID_AA64ISAR3_EL1, ftr_id_aa64isar3_el1),
+	TEST_REG(SYS_ID_AA64PFR0_EL1, ftr_id_aa64pfr0_el1),
+	TEST_REG(SYS_ID_AA64PFR1_EL1, ftr_id_aa64pfr1_el1),
+	TEST_REG(SYS_ID_AA64MMFR0_EL1, ftr_id_aa64mmfr0_el1),
+	TEST_REG(SYS_ID_AA64MMFR1_EL1, ftr_id_aa64mmfr1_el1),
+	TEST_REG(SYS_ID_AA64MMFR2_EL1, ftr_id_aa64mmfr2_el1),
+	TEST_REG(SYS_ID_AA64MMFR3_EL1, ftr_id_aa64mmfr3_el1),
+	TEST_REG(SYS_ID_AA64ZFR0_EL1, ftr_id_aa64zfr0_el1),
+};
+
+#define GUEST_REG_SYNC(id) GUEST_SYNC_ARGS(0, id, read_sysreg_s(id), 0, 0);
+
+static void guest_code(void)
+{
+	GUEST_REG_SYNC(SYS_ID_AA64DFR0_EL1);
+	GUEST_REG_SYNC(SYS_ID_DFR0_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64ISAR0_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64ISAR1_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64ISAR2_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64ISAR3_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64PFR0_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64PFR1_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64MMFR0_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64MMFR1_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64MMFR2_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64MMFR3_EL1);
+	GUEST_REG_SYNC(SYS_ID_AA64ZFR0_EL1);
+	GUEST_REG_SYNC(SYS_MPIDR_EL1);
+	GUEST_REG_SYNC(SYS_CLIDR_EL1);
+	GUEST_REG_SYNC(SYS_CTR_EL0);
+	GUEST_REG_SYNC(SYS_MIDR_EL1);
+	GUEST_REG_SYNC(SYS_REVIDR_EL1);
+	GUEST_REG_SYNC(SYS_AIDR_EL1);
+
+	GUEST_DONE();
+}
+
+/* Return a safe value to a given ftr_bits an ftr value */
+uint64_t get_safe_value(const struct reg_ftr_bits *ftr_bits, uint64_t ftr)
+{
+	uint64_t ftr_max = ftr_bits->mask >> ftr_bits->shift;
+
+	TEST_ASSERT(ftr_max > 1, "This test doesn't support single bit features");
+
+	if (ftr_bits->sign == FTR_UNSIGNED) {
+		switch (ftr_bits->type) {
+		case FTR_EXACT:
+			ftr = ftr_bits->safe_val;
+			break;
+		case FTR_LOWER_SAFE:
+			if (ftr > ftr_bits->safe_val)
+				ftr--;
+			break;
+		case FTR_HIGHER_SAFE:
+			if (ftr < ftr_max)
+				ftr++;
+			break;
+		case FTR_HIGHER_OR_ZERO_SAFE:
+			if (ftr == ftr_max)
+				ftr = 0;
+			else if (ftr != 0)
+				ftr++;
+			break;
+		default:
+			break;
+		}
+	} else if (ftr != ftr_max) {
+		switch (ftr_bits->type) {
+		case FTR_EXACT:
+			ftr = ftr_bits->safe_val;
+			break;
+		case FTR_LOWER_SAFE:
+			if (ftr > ftr_bits->safe_val)
+				ftr--;
+			break;
+		case FTR_HIGHER_SAFE:
+			if (ftr < ftr_max - 1)
+				ftr++;
+			break;
+		case FTR_HIGHER_OR_ZERO_SAFE:
+			if (ftr != 0 && ftr != ftr_max - 1)
+				ftr++;
+			break;
+		default:
+			break;
+		}
+	}
+
+	return ftr;
+}
+
+/* Return an invalid value to a given ftr_bits an ftr value */
+uint64_t get_invalid_value(const struct reg_ftr_bits *ftr_bits, uint64_t ftr)
+{
+	uint64_t ftr_max = ftr_bits->mask >> ftr_bits->shift;
+
+	TEST_ASSERT(ftr_max > 1, "This test doesn't support single bit features");
+
+	if (ftr_bits->sign == FTR_UNSIGNED) {
+		switch (ftr_bits->type) {
+		case FTR_EXACT:
+			ftr = max((uint64_t)ftr_bits->safe_val + 1, ftr + 1);
+			break;
+		case FTR_LOWER_SAFE:
+			ftr++;
+			break;
+		case FTR_HIGHER_SAFE:
+			ftr--;
+			break;
+		case FTR_HIGHER_OR_ZERO_SAFE:
+			if (ftr == 0)
+				ftr = ftr_max;
+			else
+				ftr--;
+			break;
+		default:
+			break;
+		}
+	} else if (ftr != ftr_max) {
+		switch (ftr_bits->type) {
+		case FTR_EXACT:
+			ftr = max((uint64_t)ftr_bits->safe_val + 1, ftr + 1);
+			break;
+		case FTR_LOWER_SAFE:
+			ftr++;
+			break;
+		case FTR_HIGHER_SAFE:
+			ftr--;
+			break;
+		case FTR_HIGHER_OR_ZERO_SAFE:
+			if (ftr == 0)
+				ftr = ftr_max - 1;
+			else
+				ftr--;
+			break;
+		default:
+			break;
+		}
+	} else {
+		ftr = 0;
+	}
+
+	return ftr;
+}
+
+static uint64_t test_reg_set_success(struct kvm_vcpu *vcpu, uint64_t reg,
+				     const struct reg_ftr_bits *ftr_bits)
+{
+	uint8_t shift = ftr_bits->shift;
+	uint64_t mask = ftr_bits->mask;
+	uint64_t val, new_val, ftr;
+
+	val = vcpu_get_reg(vcpu, reg);
+	ftr = (val & mask) >> shift;
+
+	ftr = get_safe_value(ftr_bits, ftr);
+
+	ftr <<= shift;
+	val &= ~mask;
+	val |= ftr;
+
+	vcpu_set_reg(vcpu, reg, val);
+	new_val = vcpu_get_reg(vcpu, reg);
+	TEST_ASSERT_EQ(new_val, val);
+
+	return new_val;
+}
+
+static void test_reg_set_fail(struct kvm_vcpu *vcpu, uint64_t reg,
+			      const struct reg_ftr_bits *ftr_bits)
+{
+	uint8_t shift = ftr_bits->shift;
+	uint64_t mask = ftr_bits->mask;
+	uint64_t val, old_val, ftr;
+	int r;
+
+	val = vcpu_get_reg(vcpu, reg);
+	ftr = (val & mask) >> shift;
+
+	ftr = get_invalid_value(ftr_bits, ftr);
+
+	old_val = val;
+	ftr <<= shift;
+	val &= ~mask;
+	val |= ftr;
+
+	r = __vcpu_set_reg(vcpu, reg, val);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Unexpected KVM_SET_ONE_REG error: r=%d, errno=%d", r, errno);
+
+	val = vcpu_get_reg(vcpu, reg);
+	TEST_ASSERT_EQ(val, old_val);
+}
+
+static uint64_t test_reg_vals[KVM_ARM_FEATURE_ID_RANGE_SIZE];
+
+#define encoding_to_range_idx(encoding)							\
+	KVM_ARM_FEATURE_ID_RANGE_IDX(sys_reg_Op0(encoding), sys_reg_Op1(encoding),	\
+				     sys_reg_CRn(encoding), sys_reg_CRm(encoding),	\
+				     sys_reg_Op2(encoding))
+
+
+static void test_vm_ftr_id_regs(struct kvm_vcpu *vcpu, bool aarch64_only)
+{
+	uint64_t masks[KVM_ARM_FEATURE_ID_RANGE_SIZE];
+	struct reg_mask_range range = {
+		.addr = (__u64)masks,
+	};
+	int ret;
+
+	/* KVM should return error when reserved field is not zero */
+	range.reserved[0] = 1;
+	ret = __vm_ioctl(vcpu->vm, KVM_ARM_GET_REG_WRITABLE_MASKS, &range);
+	TEST_ASSERT(ret, "KVM doesn't check invalid parameters.");
+
+	/* Get writable masks for feature ID registers */
+	memset(range.reserved, 0, sizeof(range.reserved));
+	vm_ioctl(vcpu->vm, KVM_ARM_GET_REG_WRITABLE_MASKS, &range);
+
+	for (int i = 0; i < ARRAY_SIZE(test_regs); i++) {
+		const struct reg_ftr_bits *ftr_bits = test_regs[i].ftr_bits;
+		uint32_t reg_id = test_regs[i].reg;
+		uint64_t reg = KVM_ARM64_SYS_REG(reg_id);
+		int idx;
+
+		/* Get the index to masks array for the idreg */
+		idx = encoding_to_range_idx(reg_id);
+
+		for (int j = 0;  ftr_bits[j].type != FTR_END; j++) {
+			/* Skip aarch32 reg on aarch64 only system, since they are RAZ/WI. */
+			if (aarch64_only && sys_reg_CRm(reg_id) < 4) {
+				ksft_test_result_skip("%s on AARCH64 only system\n",
+						      ftr_bits[j].name);
+				continue;
+			}
+
+			/* Make sure the feature field is writable */
+			TEST_ASSERT_EQ(masks[idx] & ftr_bits[j].mask, ftr_bits[j].mask);
+
+			test_reg_set_fail(vcpu, reg, &ftr_bits[j]);
+
+			test_reg_vals[idx] = test_reg_set_success(vcpu, reg,
+								  &ftr_bits[j]);
+
+			ksft_test_result_pass("%s\n", ftr_bits[j].name);
+		}
+	}
+}
+
+#define MPAM_IDREG_TEST	6
+static void test_user_set_mpam_reg(struct kvm_vcpu *vcpu)
+{
+	uint64_t masks[KVM_ARM_FEATURE_ID_RANGE_SIZE];
+	struct reg_mask_range range = {
+		.addr = (__u64)masks,
+	};
+	uint64_t val;
+	int idx, err;
+
+	/*
+	 * If ID_AA64PFR0.MPAM is _not_ officially modifiable and is zero,
+	 * check that if it can be set to 1, (i.e. it is supported by the
+	 * hardware), that it can't be set to other values.
+	 */
+
+	/* Get writable masks for feature ID registers */
+	memset(range.reserved, 0, sizeof(range.reserved));
+	vm_ioctl(vcpu->vm, KVM_ARM_GET_REG_WRITABLE_MASKS, &range);
+
+	/* Writeable? Nothing to test! */
+	idx = encoding_to_range_idx(SYS_ID_AA64PFR0_EL1);
+	if ((masks[idx] & ID_AA64PFR0_EL1_MPAM_MASK) == ID_AA64PFR0_EL1_MPAM_MASK) {
+		ksft_test_result_skip("ID_AA64PFR0_EL1.MPAM is officially writable, nothing to test\n");
+		return;
+	}
+
+	/* Get the id register value */
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1));
+
+	/* Try to set MPAM=0. This should always be possible. */
+	val &= ~ID_AA64PFR0_EL1_MPAM_MASK;
+	val |= FIELD_PREP(ID_AA64PFR0_EL1_MPAM_MASK, 0);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1), val);
+	if (err)
+		ksft_test_result_fail("ID_AA64PFR0_EL1.MPAM=0 was not accepted\n");
+	else
+		ksft_test_result_pass("ID_AA64PFR0_EL1.MPAM=0 worked\n");
+
+	/* Try to set MPAM=1 */
+	val &= ~ID_AA64PFR0_EL1_MPAM_MASK;
+	val |= FIELD_PREP(ID_AA64PFR0_EL1_MPAM_MASK, 1);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1), val);
+	if (err)
+		ksft_test_result_skip("ID_AA64PFR0_EL1.MPAM is not writable, nothing to test\n");
+	else
+		ksft_test_result_pass("ID_AA64PFR0_EL1.MPAM=1 was writable\n");
+
+	/* Try to set MPAM=2 */
+	val &= ~ID_AA64PFR0_EL1_MPAM_MASK;
+	val |= FIELD_PREP(ID_AA64PFR0_EL1_MPAM_MASK, 2);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1), val);
+	if (err)
+		ksft_test_result_pass("ID_AA64PFR0_EL1.MPAM not arbitrarily modifiable\n");
+	else
+		ksft_test_result_fail("ID_AA64PFR0_EL1.MPAM value should not be ignored\n");
+
+	/* And again for ID_AA64PFR1_EL1.MPAM_frac */
+	idx = encoding_to_range_idx(SYS_ID_AA64PFR1_EL1);
+	if ((masks[idx] & ID_AA64PFR1_EL1_MPAM_frac_MASK) == ID_AA64PFR1_EL1_MPAM_frac_MASK) {
+		ksft_test_result_skip("ID_AA64PFR1_EL1.MPAM_frac is officially writable, nothing to test\n");
+		return;
+	}
+
+	/* Get the id register value */
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1));
+
+	/* Try to set MPAM_frac=0. This should always be possible. */
+	val &= ~ID_AA64PFR1_EL1_MPAM_frac_MASK;
+	val |= FIELD_PREP(ID_AA64PFR1_EL1_MPAM_frac_MASK, 0);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1), val);
+	if (err)
+		ksft_test_result_fail("ID_AA64PFR0_EL1.MPAM_frac=0 was not accepted\n");
+	else
+		ksft_test_result_pass("ID_AA64PFR0_EL1.MPAM_frac=0 worked\n");
+
+	/* Try to set MPAM_frac=1 */
+	val &= ~ID_AA64PFR1_EL1_MPAM_frac_MASK;
+	val |= FIELD_PREP(ID_AA64PFR1_EL1_MPAM_frac_MASK, 1);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1), val);
+	if (err)
+		ksft_test_result_skip("ID_AA64PFR1_EL1.MPAM_frac is not writable, nothing to test\n");
+	else
+		ksft_test_result_pass("ID_AA64PFR0_EL1.MPAM_frac=1 was writable\n");
+
+	/* Try to set MPAM_frac=2 */
+	val &= ~ID_AA64PFR1_EL1_MPAM_frac_MASK;
+	val |= FIELD_PREP(ID_AA64PFR1_EL1_MPAM_frac_MASK, 2);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1), val);
+	if (err)
+		ksft_test_result_pass("ID_AA64PFR1_EL1.MPAM_frac not arbitrarily modifiable\n");
+	else
+		ksft_test_result_fail("ID_AA64PFR1_EL1.MPAM_frac value should not be ignored\n");
+}
+
+#define MTE_IDREG_TEST 1
+static void test_user_set_mte_reg(struct kvm_vcpu *vcpu)
+{
+	uint64_t masks[KVM_ARM_FEATURE_ID_RANGE_SIZE];
+	struct reg_mask_range range = {
+		.addr = (__u64)masks,
+	};
+	uint64_t val;
+	uint64_t mte;
+	uint64_t mte_frac;
+	int idx, err;
+
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1));
+	mte = FIELD_GET(ID_AA64PFR1_EL1_MTE, val);
+	if (!mte) {
+		ksft_test_result_skip("MTE capability not supported, nothing to test\n");
+		return;
+	}
+
+	/* Get writable masks for feature ID registers */
+	memset(range.reserved, 0, sizeof(range.reserved));
+	vm_ioctl(vcpu->vm, KVM_ARM_GET_REG_WRITABLE_MASKS, &range);
+
+	idx = encoding_to_range_idx(SYS_ID_AA64PFR1_EL1);
+	if ((masks[idx] & ID_AA64PFR1_EL1_MTE_frac_MASK) == ID_AA64PFR1_EL1_MTE_frac_MASK) {
+		ksft_test_result_skip("ID_AA64PFR1_EL1.MTE_frac is officially writable, nothing to test\n");
+		return;
+	}
+
+	/*
+	 * When MTE is supported but MTE_ASYMM is not (ID_AA64PFR1_EL1.MTE == 2)
+	 * ID_AA64PFR1_EL1.MTE_frac == 0xF indicates MTE_ASYNC is unsupported
+	 * and MTE_frac == 0 indicates it is supported.
+	 *
+	 * As MTE_frac was previously unconditionally read as 0, check
+	 * that the set to 0 succeeds but does not change MTE_frac
+	 * from unsupported (0xF) to supported (0).
+	 *
+	 */
+	mte_frac = FIELD_GET(ID_AA64PFR1_EL1_MTE_frac, val);
+	if (mte != ID_AA64PFR1_EL1_MTE_MTE2 ||
+	    mte_frac != ID_AA64PFR1_EL1_MTE_frac_NI) {
+		ksft_test_result_skip("MTE_ASYNC or MTE_ASYMM are supported, nothing to test\n");
+		return;
+	}
+
+	/* Try to set MTE_frac=0. */
+	val &= ~ID_AA64PFR1_EL1_MTE_frac_MASK;
+	val |= FIELD_PREP(ID_AA64PFR1_EL1_MTE_frac_MASK, 0);
+	err = __vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1), val);
+	if (err) {
+		ksft_test_result_fail("ID_AA64PFR1_EL1.MTE_frac=0 was not accepted\n");
+		return;
+	}
+
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR1_EL1));
+	mte_frac = FIELD_GET(ID_AA64PFR1_EL1_MTE_frac, val);
+	if (mte_frac == ID_AA64PFR1_EL1_MTE_frac_NI)
+		ksft_test_result_pass("ID_AA64PFR1_EL1.MTE_frac=0 accepted and still 0xF\n");
+	else
+		ksft_test_result_pass("ID_AA64PFR1_EL1.MTE_frac no longer 0xF\n");
+}
+
+static void test_guest_reg_read(struct kvm_vcpu *vcpu)
+{
+	bool done = false;
+	struct ucall uc;
+
+	while (!done) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_SYNC:
+			/* Make sure the written values are seen by guest */
+			TEST_ASSERT_EQ(test_reg_vals[encoding_to_range_idx(uc.args[2])],
+				       uc.args[3]);
+			break;
+		case UCALL_DONE:
+			done = true;
+			break;
+		default:
+			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+		}
+	}
+}
+
+/* Politely lifted from arch/arm64/include/asm/cache.h */
+/* Ctypen, bits[3(n - 1) + 2 : 3(n - 1)], for n = 1 to 7 */
+#define CLIDR_CTYPE_SHIFT(level)	(3 * (level - 1))
+#define CLIDR_CTYPE_MASK(level)		(7 << CLIDR_CTYPE_SHIFT(level))
+#define CLIDR_CTYPE(clidr, level)	\
+	(((clidr) & CLIDR_CTYPE_MASK(level)) >> CLIDR_CTYPE_SHIFT(level))
+
+static void test_clidr(struct kvm_vcpu *vcpu)
+{
+	uint64_t clidr;
+	int level;
+
+	clidr = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_CLIDR_EL1));
+
+	/* find the first empty level in the cache hierarchy */
+	for (level = 1; level <= 7; level++) {
+		if (!CLIDR_CTYPE(clidr, level))
+			break;
+	}
+
+	/*
+	 * If you have a mind-boggling 7 levels of cache, congratulations, you
+	 * get to fix this.
+	 */
+	TEST_ASSERT(level <= 7, "can't find an empty level in cache hierarchy");
+
+	/* stick in a unified cache level */
+	clidr |= BIT(2) << CLIDR_CTYPE_SHIFT(level);
+
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_CLIDR_EL1), clidr);
+	test_reg_vals[encoding_to_range_idx(SYS_CLIDR_EL1)] = clidr;
+}
+
+static void test_ctr(struct kvm_vcpu *vcpu)
+{
+	u64 ctr;
+
+	ctr = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_CTR_EL0));
+	ctr &= ~CTR_EL0_DIC_MASK;
+	if (ctr & CTR_EL0_IminLine_MASK)
+		ctr--;
+
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_CTR_EL0), ctr);
+	test_reg_vals[encoding_to_range_idx(SYS_CTR_EL0)] = ctr;
+}
+
+static void test_id_reg(struct kvm_vcpu *vcpu, u32 id)
+{
+	u64 val;
+
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(id));
+	val++;
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(id), val);
+	test_reg_vals[encoding_to_range_idx(id)] = val;
+}
+
+static void test_vcpu_ftr_id_regs(struct kvm_vcpu *vcpu)
+{
+	test_clidr(vcpu);
+	test_ctr(vcpu);
+
+	test_id_reg(vcpu, SYS_MPIDR_EL1);
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+static void test_vcpu_non_ftr_id_regs(struct kvm_vcpu *vcpu)
+{
+	test_id_reg(vcpu, SYS_MIDR_EL1);
+	test_id_reg(vcpu, SYS_REVIDR_EL1);
+	test_id_reg(vcpu, SYS_AIDR_EL1);
+
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+static void test_assert_id_reg_unchanged(struct kvm_vcpu *vcpu, uint32_t encoding)
+{
+	size_t idx = encoding_to_range_idx(encoding);
+	uint64_t observed;
+
+	observed = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(encoding));
+	TEST_ASSERT_EQ(test_reg_vals[idx], observed);
+}
+
+static void test_reset_preserves_id_regs(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * Calls KVM_ARM_VCPU_INIT behind the scenes, which will do an
+	 * architectural reset of the vCPU.
+	 */
+	aarch64_vcpu_setup(vcpu, NULL);
+
+	for (int i = 0; i < ARRAY_SIZE(test_regs); i++)
+		test_assert_id_reg_unchanged(vcpu, test_regs[i].reg);
+
+	test_assert_id_reg_unchanged(vcpu, SYS_MPIDR_EL1);
+	test_assert_id_reg_unchanged(vcpu, SYS_CLIDR_EL1);
+	test_assert_id_reg_unchanged(vcpu, SYS_CTR_EL0);
+	test_assert_id_reg_unchanged(vcpu, SYS_MIDR_EL1);
+	test_assert_id_reg_unchanged(vcpu, SYS_REVIDR_EL1);
+	test_assert_id_reg_unchanged(vcpu, SYS_AIDR_EL1);
+
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	bool aarch64_only;
+	uint64_t val, el0;
+	int test_cnt, i, j;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_WRITABLE_IMP_ID_REGS));
+
+	test_wants_mte();
+
+	vm = vm_create(1);
+	vm_enable_cap(vm, KVM_CAP_ARM_WRITABLE_IMP_ID_REGS, 0);
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+	kvm_arch_vm_finalize_vcpus(vm);
+
+	/* Check for AARCH64 only system */
+	val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64PFR0_EL1));
+	el0 = FIELD_GET(ID_AA64PFR0_EL1_EL0, val);
+	aarch64_only = (el0 == ID_AA64PFR0_EL1_EL0_IMP);
+
+	ksft_print_header();
+
+	test_cnt = 3 + MPAM_IDREG_TEST + MTE_IDREG_TEST;
+	for (i = 0; i < ARRAY_SIZE(test_regs); i++)
+		for (j = 0; test_regs[i].ftr_bits[j].type != FTR_END; j++)
+			test_cnt++;
+
+	ksft_set_plan(test_cnt);
+
+	test_vm_ftr_id_regs(vcpu, aarch64_only);
+	test_vcpu_ftr_id_regs(vcpu);
+	test_vcpu_non_ftr_id_regs(vcpu);
+	test_user_set_mpam_reg(vcpu);
+	test_user_set_mte_reg(vcpu);
+
+	test_guest_reg_read(vcpu);
+
+	test_reset_preserves_id_regs(vcpu);
+
+	kvm_vm_free(vm);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/arm64/smccc_filter.c b/tools/testing/selftests/kvm/arm64/smccc_filter.c
new file mode 100644
index 000000000000..1763b9d45400
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/smccc_filter.c
@@ -0,0 +1,281 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * smccc_filter - Tests for the SMCCC filter UAPI.
+ *
+ * Copyright (c) 2023 Google LLC
+ *
+ * This test includes:
+ *  - Tests that the UAPI constraints are upheld by KVM. For example, userspace
+ *    is prevented from filtering the architecture range of SMCCC calls.
+ *  - Test that the filter actions (DENIED, FWD_TO_USER) work as intended.
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/psci.h>
+#include <stdint.h>
+
+#include "processor.h"
+#include "test_util.h"
+
+enum smccc_conduit {
+	HVC_INSN,
+	SMC_INSN,
+};
+
+static bool test_runs_at_el2(void)
+{
+	struct kvm_vm *vm = vm_create(1);
+	struct kvm_vcpu_init init;
+
+	kvm_get_default_vcpu_target(vm, &init);
+	kvm_vm_free(vm);
+
+	return init.features[0] & BIT(KVM_ARM_VCPU_HAS_EL2);
+}
+
+#define for_each_conduit(conduit)					\
+	for (conduit = test_runs_at_el2() ? SMC_INSN : HVC_INSN;	\
+	     conduit <= SMC_INSN; conduit++)
+
+static void guest_main(uint32_t func_id, enum smccc_conduit conduit)
+{
+	struct arm_smccc_res res;
+
+	if (conduit == SMC_INSN)
+		smccc_smc(func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+	else
+		smccc_hvc(func_id, 0, 0, 0, 0, 0, 0, 0, &res);
+
+	GUEST_SYNC(res.a0);
+}
+
+static int __set_smccc_filter(struct kvm_vm *vm, uint32_t start, uint32_t nr_functions,
+			      enum kvm_smccc_filter_action action)
+{
+	struct kvm_smccc_filter filter = {
+		.base		= start,
+		.nr_functions	= nr_functions,
+		.action		= action,
+	};
+
+	return __kvm_device_attr_set(vm->fd, KVM_ARM_VM_SMCCC_CTRL,
+				     KVM_ARM_VM_SMCCC_FILTER, &filter);
+}
+
+static void set_smccc_filter(struct kvm_vm *vm, uint32_t start, uint32_t nr_functions,
+			     enum kvm_smccc_filter_action action)
+{
+	int ret = __set_smccc_filter(vm, start, nr_functions, action);
+
+	TEST_ASSERT(!ret, "failed to configure SMCCC filter: %d", ret);
+}
+
+static struct kvm_vm *setup_vm(struct kvm_vcpu **vcpu)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vm *vm;
+
+	vm = vm_create(1);
+	kvm_get_default_vcpu_target(vm, &init);
+
+	/*
+	 * Enable in-kernel emulation of PSCI to ensure that calls are denied
+	 * due to the SMCCC filter, not because of KVM.
+	 */
+	init.features[0] |= (1 << KVM_ARM_VCPU_PSCI_0_2);
+
+	*vcpu = aarch64_vcpu_add(vm, 0, &init, guest_main);
+	kvm_arch_vm_finalize_vcpus(vm);
+	return vm;
+}
+
+static void test_pad_must_be_zero(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	struct kvm_smccc_filter filter = {
+		.base		= PSCI_0_2_FN_PSCI_VERSION,
+		.nr_functions	= 1,
+		.action		= KVM_SMCCC_FILTER_DENY,
+		.pad		= { -1 },
+	};
+	int r;
+
+	r = __kvm_device_attr_set(vm->fd, KVM_ARM_VM_SMCCC_CTRL,
+				  KVM_ARM_VM_SMCCC_FILTER, &filter);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Setting filter with nonzero padding should return EINVAL");
+}
+
+/* Ensure that userspace cannot filter the Arm Architecture SMCCC range */
+static void test_filter_reserved_range(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	uint32_t smc64_fn;
+	int r;
+
+	r = __set_smccc_filter(vm, ARM_SMCCC_ARCH_WORKAROUND_1,
+			       1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter reserved range should return EEXIST");
+
+	smc64_fn = ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL, ARM_SMCCC_SMC_64,
+				      0, 0);
+
+	r = __set_smccc_filter(vm, smc64_fn, 1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter reserved range should return EEXIST");
+
+	kvm_vm_free(vm);
+}
+
+static void test_invalid_nr_functions(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 0, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to filter 0 functions should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+static void test_overflow_nr_functions(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, ~0, ~0, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to overflow filter range should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+static void test_reserved_action(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, -1);
+	TEST_ASSERT(r < 0 && errno == EINVAL,
+		    "Attempt to use reserved filter action should return EINVAL");
+
+	kvm_vm_free(vm);
+}
+
+
+/* Test that overlapping configurations of the SMCCC filter are rejected */
+static void test_filter_overlap(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm = setup_vm(&vcpu);
+	int r;
+
+	set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, KVM_SMCCC_FILTER_DENY);
+
+	r = __set_smccc_filter(vm, PSCI_0_2_FN64_CPU_ON, 1, KVM_SMCCC_FILTER_DENY);
+	TEST_ASSERT(r < 0 && errno == EEXIST,
+		    "Attempt to filter already configured range should return EEXIST");
+
+	kvm_vm_free(vm);
+}
+
+static void expect_call_denied(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) != UCALL_SYNC)
+		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+
+	TEST_ASSERT(uc.args[1] == SMCCC_RET_NOT_SUPPORTED,
+		    "Unexpected SMCCC return code: %lu", uc.args[1]);
+}
+
+/* Denied SMCCC calls have a return code of SMCCC_RET_NOT_SUPPORTED */
+static void test_filter_denied(void)
+{
+	enum smccc_conduit conduit;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	for_each_conduit(conduit) {
+		vm = setup_vm(&vcpu);
+
+		set_smccc_filter(vm, PSCI_0_2_FN_PSCI_VERSION, 1, KVM_SMCCC_FILTER_DENY);
+		vcpu_args_set(vcpu, 2, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		vcpu_run(vcpu);
+		expect_call_denied(vcpu);
+
+		kvm_vm_free(vm);
+	}
+}
+
+static void expect_call_fwd_to_user(struct kvm_vcpu *vcpu, uint32_t func_id,
+				    enum smccc_conduit conduit)
+{
+	struct kvm_run *run = vcpu->run;
+
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_HYPERCALL,
+		    "Unexpected exit reason: %u", run->exit_reason);
+	TEST_ASSERT(run->hypercall.nr == func_id,
+		    "Unexpected SMCCC function: %llu", run->hypercall.nr);
+
+	if (conduit == SMC_INSN)
+		TEST_ASSERT(run->hypercall.flags & KVM_HYPERCALL_EXIT_SMC,
+			    "KVM_HYPERCALL_EXIT_SMC is not set");
+	else
+		TEST_ASSERT(!(run->hypercall.flags & KVM_HYPERCALL_EXIT_SMC),
+			    "KVM_HYPERCALL_EXIT_SMC is set");
+}
+
+/* SMCCC calls forwarded to userspace cause KVM_EXIT_HYPERCALL exits */
+static void test_filter_fwd_to_user(void)
+{
+	enum smccc_conduit conduit;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	for_each_conduit(conduit) {
+		vm = setup_vm(&vcpu);
+
+		set_smccc_filter(vm, PSCI_0_2_FN_PSCI_VERSION, 1, KVM_SMCCC_FILTER_FWD_TO_USER);
+		vcpu_args_set(vcpu, 2, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		vcpu_run(vcpu);
+		expect_call_fwd_to_user(vcpu, PSCI_0_2_FN_PSCI_VERSION, conduit);
+
+		kvm_vm_free(vm);
+	}
+}
+
+static bool kvm_supports_smccc_filter(void)
+{
+	struct kvm_vm *vm = vm_create_barebones();
+	int r;
+
+	r = __kvm_has_device_attr(vm->fd, KVM_ARM_VM_SMCCC_CTRL, KVM_ARM_VM_SMCCC_FILTER);
+
+	kvm_vm_free(vm);
+	return !r;
+}
+
+int main(void)
+{
+	TEST_REQUIRE(kvm_supports_smccc_filter());
+
+	test_pad_must_be_zero();
+	test_invalid_nr_functions();
+	test_overflow_nr_functions();
+	test_reserved_action();
+	test_filter_reserved_range();
+	test_filter_overlap();
+	test_filter_denied();
+	test_filter_fwd_to_user();
+}
diff --git a/tools/testing/selftests/kvm/arm64/vcpu_width_config.c b/tools/testing/selftests/kvm/arm64/vcpu_width_config.c
new file mode 100644
index 000000000000..80b74c6f152b
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/vcpu_width_config.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vcpu_width_config - Test KVM_ARM_VCPU_INIT() with KVM_ARM_VCPU_EL1_32BIT.
+ *
+ * Copyright (c) 2022 Google LLC.
+ *
+ * This is a test that ensures that non-mixed-width vCPUs (all 64bit vCPUs
+ * or all 32bit vcPUs) can be configured and mixed-width vCPUs cannot be
+ * configured.
+ */
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+
+
+/*
+ * Add a vCPU, run KVM_ARM_VCPU_INIT with @init0, and then
+ * add another vCPU, and run KVM_ARM_VCPU_INIT with @init1.
+ */
+static int add_init_2vcpus(struct kvm_vcpu_init *init0,
+			   struct kvm_vcpu_init *init1)
+{
+	struct kvm_vcpu *vcpu0, *vcpu1;
+	struct kvm_vm *vm;
+	int ret;
+
+	vm = vm_create_barebones();
+
+	vcpu0 = __vm_vcpu_add(vm, 0);
+	ret = __vcpu_ioctl(vcpu0, KVM_ARM_VCPU_INIT, init0);
+	if (ret)
+		goto free_exit;
+
+	vcpu1 = __vm_vcpu_add(vm, 1);
+	ret = __vcpu_ioctl(vcpu1, KVM_ARM_VCPU_INIT, init1);
+
+free_exit:
+	kvm_vm_free(vm);
+	return ret;
+}
+
+/*
+ * Add two vCPUs, then run KVM_ARM_VCPU_INIT for one vCPU with @init0,
+ * and run KVM_ARM_VCPU_INIT for another vCPU with @init1.
+ */
+static int add_2vcpus_init_2vcpus(struct kvm_vcpu_init *init0,
+				  struct kvm_vcpu_init *init1)
+{
+	struct kvm_vcpu *vcpu0, *vcpu1;
+	struct kvm_vm *vm;
+	int ret;
+
+	vm = vm_create_barebones();
+
+	vcpu0 = __vm_vcpu_add(vm, 0);
+	vcpu1 = __vm_vcpu_add(vm, 1);
+
+	ret = __vcpu_ioctl(vcpu0, KVM_ARM_VCPU_INIT, init0);
+	if (ret)
+		goto free_exit;
+
+	ret = __vcpu_ioctl(vcpu1, KVM_ARM_VCPU_INIT, init1);
+
+free_exit:
+	kvm_vm_free(vm);
+	return ret;
+}
+
+/*
+ * Tests that two 64bit vCPUs can be configured, two 32bit vCPUs can be
+ * configured, and two mixed-width vCPUs cannot be configured.
+ * Each of those three cases, configure vCPUs in two different orders.
+ * The one is running KVM_CREATE_VCPU for 2 vCPUs, and then running
+ * KVM_ARM_VCPU_INIT for them.
+ * The other is running KVM_CREATE_VCPU and KVM_ARM_VCPU_INIT for a vCPU,
+ * and then run those commands for another vCPU.
+ */
+int main(void)
+{
+	struct kvm_vcpu_init init0, init1;
+	struct kvm_vm *vm;
+	int ret;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_EL1_32BIT));
+
+	/* Get the preferred target type and copy that to init1 for later use */
+	vm = vm_create_barebones();
+	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init0);
+	kvm_vm_free(vm);
+	init1 = init0;
+
+	/* Test with 64bit vCPUs */
+	ret = add_init_2vcpus(&init0, &init0);
+	TEST_ASSERT(ret == 0,
+		    "Configuring 64bit EL1 vCPUs failed unexpectedly");
+	ret = add_2vcpus_init_2vcpus(&init0, &init0);
+	TEST_ASSERT(ret == 0,
+		    "Configuring 64bit EL1 vCPUs failed unexpectedly");
+
+	/* Test with 32bit vCPUs */
+	init0.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT);
+	ret = add_init_2vcpus(&init0, &init0);
+	TEST_ASSERT(ret == 0,
+		    "Configuring 32bit EL1 vCPUs failed unexpectedly");
+	ret = add_2vcpus_init_2vcpus(&init0, &init0);
+	TEST_ASSERT(ret == 0,
+		    "Configuring 32bit EL1 vCPUs failed unexpectedly");
+
+	/* Test with mixed-width vCPUs  */
+	init0.features[0] = 0;
+	init1.features[0] = (1 << KVM_ARM_VCPU_EL1_32BIT);
+	ret = add_init_2vcpus(&init0, &init1);
+	TEST_ASSERT(ret != 0,
+		    "Configuring mixed-width vCPUs worked unexpectedly");
+	ret = add_2vcpus_init_2vcpus(&init0, &init1);
+	TEST_ASSERT(ret != 0,
+		    "Configuring mixed-width vCPUs worked unexpectedly");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/vgic_init.c b/tools/testing/selftests/kvm/arm64/vgic_init.c
new file mode 100644
index 000000000000..8d6d3a4ae4db
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/vgic_init.c
@@ -0,0 +1,1021 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * vgic init sequence tests
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <linux/kernel.h>
+#include <sys/syscall.h>
+#include <asm/kvm.h>
+#include <asm/kvm_para.h>
+
+#include <arm64/gic_v3.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vgic.h"
+#include "gic_v3.h"
+
+#define NR_VCPUS		4
+
+#define REG_OFFSET(vcpu, offset) (((uint64_t)vcpu << 32) | offset)
+
+#define VGIC_DEV_IS_V2(_d) ((_d) == KVM_DEV_TYPE_ARM_VGIC_V2)
+#define VGIC_DEV_IS_V3(_d) ((_d) == KVM_DEV_TYPE_ARM_VGIC_V3)
+
+struct vm_gic {
+	struct kvm_vm *vm;
+	int gic_fd;
+	uint32_t gic_dev_type;
+};
+
+static uint64_t max_phys_size;
+
+/*
+ * Helpers to access a redistributor register and verify the ioctl() failed or
+ * succeeded as expected, and provided the correct value on success.
+ */
+static void v3_redist_reg_get_errno(int gicv3_fd, int vcpu, int offset,
+				    int want, const char *msg)
+{
+	uint32_t ignored_val;
+	int ret = __kvm_device_attr_get(gicv3_fd, KVM_DEV_ARM_VGIC_GRP_REDIST_REGS,
+					REG_OFFSET(vcpu, offset), &ignored_val);
+
+	TEST_ASSERT(ret && errno == want, "%s; want errno = %d", msg, want);
+}
+
+static void v3_redist_reg_get(int gicv3_fd, int vcpu, int offset, uint32_t want,
+			      const char *msg)
+{
+	uint32_t val;
+
+	kvm_device_attr_get(gicv3_fd, KVM_DEV_ARM_VGIC_GRP_REDIST_REGS,
+			    REG_OFFSET(vcpu, offset), &val);
+	TEST_ASSERT(val == want, "%s; want '0x%x', got '0x%x'", msg, want, val);
+}
+
+/* dummy guest code */
+static void guest_code(void)
+{
+	GUEST_SYNC(0);
+	GUEST_SYNC(1);
+	GUEST_SYNC(2);
+	GUEST_DONE();
+}
+
+/* we don't want to assert on run execution, hence that helper */
+static int run_vcpu(struct kvm_vcpu *vcpu)
+{
+	return __vcpu_run(vcpu) ? -errno : 0;
+}
+
+static struct vm_gic vm_gic_create_with_vcpus(uint32_t gic_dev_type,
+					      uint32_t nr_vcpus,
+					      struct kvm_vcpu *vcpus[])
+{
+	struct vm_gic v;
+
+	v.gic_dev_type = gic_dev_type;
+	v.vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
+	v.gic_fd = kvm_create_device(v.vm, gic_dev_type);
+
+	return v;
+}
+
+static struct vm_gic vm_gic_create_barebones(uint32_t gic_dev_type)
+{
+	struct vm_gic v;
+
+	v.gic_dev_type = gic_dev_type;
+	v.vm = vm_create_barebones();
+	v.gic_fd = kvm_create_device(v.vm, gic_dev_type);
+
+	return v;
+}
+
+
+static void vm_gic_destroy(struct vm_gic *v)
+{
+	close(v->gic_fd);
+	kvm_vm_free(v->vm);
+}
+
+struct vgic_region_attr {
+	uint64_t attr;
+	uint64_t size;
+	uint64_t alignment;
+};
+
+struct vgic_region_attr gic_v3_dist_region = {
+	.attr = KVM_VGIC_V3_ADDR_TYPE_DIST,
+	.size = 0x10000,
+	.alignment = 0x10000,
+};
+
+struct vgic_region_attr gic_v3_redist_region = {
+	.attr = KVM_VGIC_V3_ADDR_TYPE_REDIST,
+	.size = NR_VCPUS * 0x20000,
+	.alignment = 0x10000,
+};
+
+struct vgic_region_attr gic_v2_dist_region = {
+	.attr = KVM_VGIC_V2_ADDR_TYPE_DIST,
+	.size = 0x1000,
+	.alignment = 0x1000,
+};
+
+struct vgic_region_attr gic_v2_cpu_region = {
+	.attr = KVM_VGIC_V2_ADDR_TYPE_CPU,
+	.size = 0x2000,
+	.alignment = 0x1000,
+};
+
+/**
+ * Helper routine that performs KVM device tests in general. Eventually the
+ * ARM_VGIC (GICv2 or GICv3) device gets created with an overlapping
+ * DIST/REDIST (or DIST/CPUIF for GICv2). Assumption is 4 vcpus are going to be
+ * used hence the overlap. In the case of GICv3, A RDIST region is set at @0x0
+ * and a DIST region is set @0x70000. The GICv2 case sets a CPUIF @0x0 and a
+ * DIST region @0x1000.
+ */
+static void subtest_dist_rdist(struct vm_gic *v)
+{
+	int ret;
+	uint64_t addr;
+	struct vgic_region_attr rdist; /* CPU interface in GICv2*/
+	struct vgic_region_attr dist;
+
+	rdist = VGIC_DEV_IS_V3(v->gic_dev_type) ? gic_v3_redist_region
+						: gic_v2_cpu_region;
+	dist = VGIC_DEV_IS_V3(v->gic_dev_type) ? gic_v3_dist_region
+						: gic_v2_dist_region;
+
+	/* Check existing group/attributes */
+	kvm_has_device_attr(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR, dist.attr);
+
+	kvm_has_device_attr(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR, rdist.attr);
+
+	/* check non existing attribute */
+	ret = __kvm_has_device_attr(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR, -1);
+	TEST_ASSERT(ret && errno == ENXIO, "attribute not supported");
+
+	/* misaligned DIST and REDIST address settings */
+	addr = dist.alignment / 0x10;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    dist.attr, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "GIC dist base not aligned");
+
+	addr = rdist.alignment / 0x10;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    rdist.attr, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "GIC redist/cpu base not aligned");
+
+	/* out of range address */
+	addr = max_phys_size;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    dist.attr, &addr);
+	TEST_ASSERT(ret && errno == E2BIG, "dist address beyond IPA limit");
+
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    rdist.attr, &addr);
+	TEST_ASSERT(ret && errno == E2BIG, "redist address beyond IPA limit");
+
+	/* Space for half a rdist (a rdist is: 2 * rdist.alignment). */
+	addr = max_phys_size - dist.alignment;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    rdist.attr, &addr);
+	TEST_ASSERT(ret && errno == E2BIG,
+			"half of the redist is beyond IPA limit");
+
+	/* set REDIST base address @0x0*/
+	addr = 0x00000;
+	kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    rdist.attr, &addr);
+
+	/* Attempt to create a second legacy redistributor region */
+	addr = 0xE0000;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    rdist.attr, &addr);
+	TEST_ASSERT(ret && errno == EEXIST, "GIC redist base set again");
+
+	ret = __kvm_has_device_attr(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				     KVM_VGIC_V3_ADDR_TYPE_REDIST);
+	if (!ret) {
+		/* Attempt to mix legacy and new redistributor regions */
+		addr = REDIST_REGION_ATTR_ADDR(NR_VCPUS, 0x100000, 0, 0);
+		ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+					    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+		TEST_ASSERT(ret && errno == EINVAL,
+			    "attempt to mix GICv3 REDIST and REDIST_REGION");
+	}
+
+	/*
+	 * Set overlapping DIST / REDIST, cannot be detected here. Will be detected
+	 * on first vcpu run instead.
+	 */
+	addr = rdist.size - rdist.alignment;
+	kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    dist.attr, &addr);
+}
+
+/* Test the new REDIST region API */
+static void subtest_v3_redist_regions(struct vm_gic *v)
+{
+	uint64_t addr, expected_addr;
+	int ret;
+
+	ret = __kvm_has_device_attr(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST);
+	TEST_ASSERT(!ret, "Multiple redist regions advertised");
+
+	addr = REDIST_REGION_ATTR_ADDR(NR_VCPUS, 0x100000, 2, 0);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "redist region attr value with flags != 0");
+
+	addr = REDIST_REGION_ATTR_ADDR(0, 0x100000, 0, 0);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "redist region attr value with count== 0");
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 1);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "attempt to register the first rdist region with index != 0");
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x201000, 0, 1);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "rdist region with misaligned address");
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 0);
+	kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 1);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "register an rdist region with already used index");
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x210000, 0, 2);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "register an rdist region overlapping with another one");
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x240000, 0, 2);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "register redist region with index not +1");
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x240000, 0, 1);
+	kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	addr = REDIST_REGION_ATTR_ADDR(1, max_phys_size, 0, 2);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == E2BIG,
+		    "register redist region with base address beyond IPA range");
+
+	/* The last redist is above the pa range. */
+	addr = REDIST_REGION_ATTR_ADDR(2, max_phys_size - 0x30000, 0, 2);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == E2BIG,
+		    "register redist region with top address beyond IPA range");
+
+	addr = 0x260000;
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST, &addr);
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "Mix KVM_VGIC_V3_ADDR_TYPE_REDIST and REDIST_REGION");
+
+	/*
+	 * Now there are 2 redist regions:
+	 * region 0 @ 0x200000 2 redists
+	 * region 1 @ 0x240000 1 redist
+	 * Attempt to read their characteristics
+	 */
+
+	addr = REDIST_REGION_ATTR_ADDR(0, 0, 0, 0);
+	expected_addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 0);
+	ret = __kvm_device_attr_get(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(!ret && addr == expected_addr, "read characteristics of region #0");
+
+	addr = REDIST_REGION_ATTR_ADDR(0, 0, 0, 1);
+	expected_addr = REDIST_REGION_ATTR_ADDR(1, 0x240000, 0, 1);
+	ret = __kvm_device_attr_get(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(!ret && addr == expected_addr, "read characteristics of region #1");
+
+	addr = REDIST_REGION_ATTR_ADDR(0, 0, 0, 2);
+	ret = __kvm_device_attr_get(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == ENOENT, "read characteristics of non existing region");
+
+	addr = 0x260000;
+	kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_DIST, &addr);
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x260000, 0, 2);
+	ret = __kvm_device_attr_set(v->gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "register redist region colliding with dist");
+}
+
+/*
+ * VGIC KVM device is created and initialized before the secondary CPUs
+ * get created
+ */
+static void test_vgic_then_vcpus(uint32_t gic_dev_type)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct vm_gic v;
+	int ret, i;
+
+	v = vm_gic_create_with_vcpus(gic_dev_type, 1, vcpus);
+
+	subtest_dist_rdist(&v);
+
+	/* Add the rest of the VCPUs */
+	for (i = 1; i < NR_VCPUS; ++i)
+		vcpus[i] = vm_vcpu_add(v.vm, i, guest_code);
+
+	ret = run_vcpu(vcpus[3]);
+	TEST_ASSERT(ret == -EINVAL, "dist/rdist overlap detected on 1st vcpu run");
+
+	vm_gic_destroy(&v);
+}
+
+/* All the VCPUs are created before the VGIC KVM device gets initialized */
+static void test_vcpus_then_vgic(uint32_t gic_dev_type)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct vm_gic v;
+	int ret;
+
+	v = vm_gic_create_with_vcpus(gic_dev_type, NR_VCPUS, vcpus);
+
+	subtest_dist_rdist(&v);
+
+	ret = run_vcpu(vcpus[3]);
+	TEST_ASSERT(ret == -EINVAL, "dist/rdist overlap detected on 1st vcpu run");
+
+	vm_gic_destroy(&v);
+}
+
+#define KVM_VGIC_V2_ATTR(offset, cpu) \
+	(FIELD_PREP(KVM_DEV_ARM_VGIC_OFFSET_MASK, offset) | \
+	 FIELD_PREP(KVM_DEV_ARM_VGIC_CPUID_MASK, cpu))
+
+#define GIC_CPU_CTRL	0x00
+
+static void test_v2_uaccess_cpuif_no_vcpus(void)
+{
+	struct vm_gic v;
+	u64 val = 0;
+	int ret;
+
+	v = vm_gic_create_barebones(KVM_DEV_TYPE_ARM_VGIC_V2);
+	subtest_dist_rdist(&v);
+
+	ret = __kvm_has_device_attr(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CPU_REGS,
+				    KVM_VGIC_V2_ATTR(GIC_CPU_CTRL, 0));
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "accessed non-existent CPU interface, want errno: %i",
+		    EINVAL);
+	ret = __kvm_device_attr_get(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CPU_REGS,
+				    KVM_VGIC_V2_ATTR(GIC_CPU_CTRL, 0), &val);
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "accessed non-existent CPU interface, want errno: %i",
+		    EINVAL);
+	ret = __kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CPU_REGS,
+				    KVM_VGIC_V2_ATTR(GIC_CPU_CTRL, 0), &val);
+	TEST_ASSERT(ret && errno == EINVAL,
+		    "accessed non-existent CPU interface, want errno: %i",
+		    EINVAL);
+
+	vm_gic_destroy(&v);
+}
+
+static void test_v3_new_redist_regions(void)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	void *dummy = NULL;
+	struct vm_gic v;
+	uint64_t addr;
+	int ret;
+
+	v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
+	subtest_v3_redist_regions(&v);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	ret = run_vcpu(vcpus[3]);
+	TEST_ASSERT(ret == -ENXIO, "running without sufficient number of rdists");
+	vm_gic_destroy(&v);
+
+	/* step2 */
+
+	v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
+	subtest_v3_redist_regions(&v);
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x280000, 0, 2);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	ret = run_vcpu(vcpus[3]);
+	TEST_ASSERT(ret == -EBUSY, "running without vgic explicit init");
+
+	vm_gic_destroy(&v);
+
+	/* step 3 */
+
+	v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
+	subtest_v3_redist_regions(&v);
+
+	ret = __kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, dummy);
+	TEST_ASSERT(ret && errno == EFAULT,
+		    "register a third region allowing to cover the 4 vcpus");
+
+	addr = REDIST_REGION_ATTR_ADDR(1, 0x280000, 0, 2);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	ret = run_vcpu(vcpus[3]);
+	TEST_ASSERT(!ret, "vcpu run");
+
+	vm_gic_destroy(&v);
+}
+
+static void test_v3_typer_accesses(void)
+{
+	struct vm_gic v;
+	uint64_t addr;
+	int ret, i;
+
+	v.vm = vm_create(NR_VCPUS);
+	(void)vm_vcpu_add(v.vm, 0, guest_code);
+
+	v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
+
+	(void)vm_vcpu_add(v.vm, 3, guest_code);
+
+	v3_redist_reg_get_errno(v.gic_fd, 1, GICR_TYPER, EINVAL,
+				"attempting to read GICR_TYPER of non created vcpu");
+
+	(void)vm_vcpu_add(v.vm, 1, guest_code);
+
+	v3_redist_reg_get_errno(v.gic_fd, 1, GICR_TYPER, EBUSY,
+				"read GICR_TYPER before GIC initialized");
+
+	(void)vm_vcpu_add(v.vm, 2, guest_code);
+
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	for (i = 0; i < NR_VCPUS ; i++) {
+		v3_redist_reg_get(v.gic_fd, i, GICR_TYPER, i * 0x100,
+				  "read GICR_TYPER before rdist region setting");
+	}
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 0);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	/* The 2 first rdists should be put there (vcpu 0 and 3) */
+	v3_redist_reg_get(v.gic_fd, 0, GICR_TYPER, 0x0, "read typer of rdist #0");
+	v3_redist_reg_get(v.gic_fd, 3, GICR_TYPER, 0x310, "read typer of rdist #1");
+
+	addr = REDIST_REGION_ATTR_ADDR(10, 0x100000, 0, 1);
+	ret = __kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+	TEST_ASSERT(ret && errno == EINVAL, "collision with previous rdist region");
+
+	v3_redist_reg_get(v.gic_fd, 1, GICR_TYPER, 0x100,
+			  "no redist region attached to vcpu #1 yet, last cannot be returned");
+	v3_redist_reg_get(v.gic_fd, 2, GICR_TYPER, 0x200,
+			  "no redist region attached to vcpu #2, last cannot be returned");
+
+	addr = REDIST_REGION_ATTR_ADDR(10, 0x20000, 0, 1);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	v3_redist_reg_get(v.gic_fd, 1, GICR_TYPER, 0x100, "read typer of rdist #1");
+	v3_redist_reg_get(v.gic_fd, 2, GICR_TYPER, 0x210,
+			  "read typer of rdist #1, last properly returned");
+
+	vm_gic_destroy(&v);
+}
+
+static struct vm_gic vm_gic_v3_create_with_vcpuids(int nr_vcpus,
+						   uint32_t vcpuids[])
+{
+	struct vm_gic v;
+	int i;
+
+	v.vm = vm_create(nr_vcpus);
+	for (i = 0; i < nr_vcpus; i++)
+		vm_vcpu_add(v.vm, vcpuids[i], guest_code);
+
+	v.gic_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_V3);
+
+	return v;
+}
+
+/**
+ * Test GICR_TYPER last bit with new redist regions
+ * rdist regions #1 and #2 are contiguous
+ * rdist region #0 @0x100000 2 rdist capacity
+ *     rdists: 0, 3 (Last)
+ * rdist region #1 @0x240000 2 rdist capacity
+ *     rdists:  5, 4 (Last)
+ * rdist region #2 @0x200000 2 rdist capacity
+ *     rdists: 1, 2
+ */
+static void test_v3_last_bit_redist_regions(void)
+{
+	uint32_t vcpuids[] = { 0, 3, 5, 4, 1, 2 };
+	struct vm_gic v;
+	uint64_t addr;
+
+	v = vm_gic_v3_create_with_vcpuids(ARRAY_SIZE(vcpuids), vcpuids);
+
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x100000, 0, 0);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x240000, 0, 1);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	addr = REDIST_REGION_ATTR_ADDR(2, 0x200000, 0, 2);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &addr);
+
+	v3_redist_reg_get(v.gic_fd, 0, GICR_TYPER, 0x000, "read typer of rdist #0");
+	v3_redist_reg_get(v.gic_fd, 1, GICR_TYPER, 0x100, "read typer of rdist #1");
+	v3_redist_reg_get(v.gic_fd, 2, GICR_TYPER, 0x200, "read typer of rdist #2");
+	v3_redist_reg_get(v.gic_fd, 3, GICR_TYPER, 0x310, "read typer of rdist #3");
+	v3_redist_reg_get(v.gic_fd, 5, GICR_TYPER, 0x500, "read typer of rdist #5");
+	v3_redist_reg_get(v.gic_fd, 4, GICR_TYPER, 0x410, "read typer of rdist #4");
+
+	vm_gic_destroy(&v);
+}
+
+/* Test last bit with legacy region */
+static void test_v3_last_bit_single_rdist(void)
+{
+	uint32_t vcpuids[] = { 0, 3, 5, 4, 1, 2 };
+	struct vm_gic v;
+	uint64_t addr;
+
+	v = vm_gic_v3_create_with_vcpuids(ARRAY_SIZE(vcpuids), vcpuids);
+
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	addr = 0x10000;
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST, &addr);
+
+	v3_redist_reg_get(v.gic_fd, 0, GICR_TYPER, 0x000, "read typer of rdist #0");
+	v3_redist_reg_get(v.gic_fd, 3, GICR_TYPER, 0x300, "read typer of rdist #1");
+	v3_redist_reg_get(v.gic_fd, 5, GICR_TYPER, 0x500, "read typer of rdist #2");
+	v3_redist_reg_get(v.gic_fd, 1, GICR_TYPER, 0x100, "read typer of rdist #3");
+	v3_redist_reg_get(v.gic_fd, 2, GICR_TYPER, 0x210, "read typer of rdist #3");
+
+	vm_gic_destroy(&v);
+}
+
+/* Uses the legacy REDIST region API. */
+static void test_v3_redist_ipa_range_check_at_vcpu_run(void)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct vm_gic v;
+	int ret, i;
+	uint64_t addr;
+
+	v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, 1, vcpus);
+
+	/* Set space for 3 redists, we have 1 vcpu, so this succeeds. */
+	addr = max_phys_size - (3 * 2 * 0x10000);
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST, &addr);
+
+	addr = 0x00000;
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_DIST, &addr);
+
+	/* Add the rest of the VCPUs */
+	for (i = 1; i < NR_VCPUS; ++i)
+		vcpus[i] = vm_vcpu_add(v.vm, i, guest_code);
+
+	kvm_device_attr_set(v.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	/* Attempt to run a vcpu without enough redist space. */
+	ret = run_vcpu(vcpus[2]);
+	TEST_ASSERT(ret && errno == EINVAL,
+		"redist base+size above PA range detected on 1st vcpu run");
+
+	vm_gic_destroy(&v);
+}
+
+static void test_v3_its_region(void)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct vm_gic v;
+	uint64_t addr;
+	int its_fd, ret;
+
+	v = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
+	its_fd = kvm_create_device(v.vm, KVM_DEV_TYPE_ARM_VGIC_ITS);
+
+	addr = 0x401000;
+	ret = __kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_ITS_ADDR_TYPE, &addr);
+	TEST_ASSERT(ret && errno == EINVAL,
+		"ITS region with misaligned address");
+
+	addr = max_phys_size;
+	ret = __kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_ITS_ADDR_TYPE, &addr);
+	TEST_ASSERT(ret && errno == E2BIG,
+		"register ITS region with base address beyond IPA range");
+
+	addr = max_phys_size - 0x10000;
+	ret = __kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_ITS_ADDR_TYPE, &addr);
+	TEST_ASSERT(ret && errno == E2BIG,
+		"Half of ITS region is beyond IPA range");
+
+	/* This one succeeds setting the ITS base */
+	addr = 0x400000;
+	kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_ITS_ADDR_TYPE, &addr);
+
+	addr = 0x300000;
+	ret = __kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+				    KVM_VGIC_ITS_ADDR_TYPE, &addr);
+	TEST_ASSERT(ret && errno == EEXIST, "ITS base set again");
+
+	close(its_fd);
+	vm_gic_destroy(&v);
+}
+
+static void test_v3_nassgicap(void)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	bool has_nassgicap;
+	struct vm_gic vm;
+	u32 typer2;
+	int ret;
+
+	vm = vm_gic_create_with_vcpus(KVM_DEV_TYPE_ARM_VGIC_V3, NR_VCPUS, vcpus);
+	kvm_device_attr_get(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS,
+			    GICD_TYPER2, &typer2);
+	has_nassgicap = typer2 & GICD_TYPER2_nASSGIcap;
+
+	typer2 |= GICD_TYPER2_nASSGIcap;
+	ret = __kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS,
+				    GICD_TYPER2, &typer2);
+	if (has_nassgicap)
+		TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_DEVICE_ATTR_SET, ret));
+	else
+		TEST_ASSERT(ret && errno == EINVAL,
+			    "Enabled nASSGIcap even though it's unavailable");
+
+	typer2 &= ~GICD_TYPER2_nASSGIcap;
+	kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS,
+			    GICD_TYPER2, &typer2);
+
+	kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	typer2 ^= GICD_TYPER2_nASSGIcap;
+	ret = __kvm_device_attr_set(vm.gic_fd, KVM_DEV_ARM_VGIC_GRP_DIST_REGS,
+				    GICD_TYPER2, &typer2);
+	TEST_ASSERT(ret && errno == EBUSY,
+		    "Changed nASSGIcap after initializing the VGIC");
+
+	vm_gic_destroy(&vm);
+}
+
+/*
+ * Returns 0 if it's possible to create GIC device of a given type (V2 or V3).
+ */
+int test_kvm_device(uint32_t gic_dev_type)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct vm_gic v;
+	uint32_t other;
+	int ret;
+
+	v.vm = vm_create_with_vcpus(NR_VCPUS, guest_code, vcpus);
+
+	/* try to create a non existing KVM device */
+	ret = __kvm_test_create_device(v.vm, 0);
+	TEST_ASSERT(ret && errno == ENODEV, "unsupported device");
+
+	/* trial mode */
+	ret = __kvm_test_create_device(v.vm, gic_dev_type);
+	if (ret)
+		return ret;
+	v.gic_fd = kvm_create_device(v.vm, gic_dev_type);
+
+	ret = __kvm_create_device(v.vm, gic_dev_type);
+	TEST_ASSERT(ret < 0 && errno == EEXIST, "create GIC device twice");
+
+	/* try to create the other gic_dev_type */
+	other = VGIC_DEV_IS_V2(gic_dev_type) ? KVM_DEV_TYPE_ARM_VGIC_V3
+					     : KVM_DEV_TYPE_ARM_VGIC_V2;
+
+	if (!__kvm_test_create_device(v.vm, other)) {
+		ret = __kvm_create_device(v.vm, other);
+		TEST_ASSERT(ret < 0 && (errno == EINVAL || errno == EEXIST),
+				"create GIC device while other version exists");
+	}
+
+	vm_gic_destroy(&v);
+
+	return 0;
+}
+
+struct sr_def {
+	const char	*name;
+	u32		encoding;
+};
+
+#define PACK_SR(r)						\
+	((sys_reg_Op0(r) << 14) |				\
+	 (sys_reg_Op1(r) << 11) |				\
+	 (sys_reg_CRn(r) << 7) |				\
+	 (sys_reg_CRm(r) << 3) |				\
+	 (sys_reg_Op2(r)))
+
+#define SR(r)							\
+	{							\
+		.name		= #r,				\
+		.encoding	= r,				\
+	}
+
+static const struct sr_def sysregs_el1[] = {
+	SR(SYS_ICC_PMR_EL1),
+	SR(SYS_ICC_BPR0_EL1),
+	SR(SYS_ICC_AP0R0_EL1),
+	SR(SYS_ICC_AP0R1_EL1),
+	SR(SYS_ICC_AP0R2_EL1),
+	SR(SYS_ICC_AP0R3_EL1),
+	SR(SYS_ICC_AP1R0_EL1),
+	SR(SYS_ICC_AP1R1_EL1),
+	SR(SYS_ICC_AP1R2_EL1),
+	SR(SYS_ICC_AP1R3_EL1),
+	SR(SYS_ICC_BPR1_EL1),
+	SR(SYS_ICC_CTLR_EL1),
+	SR(SYS_ICC_SRE_EL1),
+	SR(SYS_ICC_IGRPEN0_EL1),
+	SR(SYS_ICC_IGRPEN1_EL1),
+};
+
+static const struct sr_def sysregs_el2[] = {
+	SR(SYS_ICH_AP0R0_EL2),
+	SR(SYS_ICH_AP0R1_EL2),
+	SR(SYS_ICH_AP0R2_EL2),
+	SR(SYS_ICH_AP0R3_EL2),
+	SR(SYS_ICH_AP1R0_EL2),
+	SR(SYS_ICH_AP1R1_EL2),
+	SR(SYS_ICH_AP1R2_EL2),
+	SR(SYS_ICH_AP1R3_EL2),
+	SR(SYS_ICH_HCR_EL2),
+	SR(SYS_ICC_SRE_EL2),
+	SR(SYS_ICH_VTR_EL2),
+	SR(SYS_ICH_VMCR_EL2),
+	SR(SYS_ICH_LR0_EL2),
+	SR(SYS_ICH_LR1_EL2),
+	SR(SYS_ICH_LR2_EL2),
+	SR(SYS_ICH_LR3_EL2),
+	SR(SYS_ICH_LR4_EL2),
+	SR(SYS_ICH_LR5_EL2),
+	SR(SYS_ICH_LR6_EL2),
+	SR(SYS_ICH_LR7_EL2),
+	SR(SYS_ICH_LR8_EL2),
+	SR(SYS_ICH_LR9_EL2),
+	SR(SYS_ICH_LR10_EL2),
+	SR(SYS_ICH_LR11_EL2),
+	SR(SYS_ICH_LR12_EL2),
+	SR(SYS_ICH_LR13_EL2),
+	SR(SYS_ICH_LR14_EL2),
+	SR(SYS_ICH_LR15_EL2),
+};
+
+static void test_sysreg_array(int gic, const struct sr_def *sr, int nr,
+			      int (*check)(int, const struct sr_def *, const char *))
+{
+	for (int i = 0; i < nr; i++) {
+		u64 val;
+		u64 attr;
+		int ret;
+
+		/* Assume MPIDR_EL1.Aff*=0 */
+		attr = PACK_SR(sr[i].encoding);
+
+		/*
+		 * The API is braindead. A register can be advertised as
+		 * available, and yet not be readable or writable.
+		 * ICC_APnR{1,2,3}_EL1 are examples of such non-sense, and
+		 * ICH_APnR{1,2,3}_EL2 do follow suit for consistency.
+		 *
+		 * On the bright side, no known HW is implementing more than
+		 * 5 bits of priority, so we're safe. Sort of...
+		 */
+		ret = __kvm_has_device_attr(gic, KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS,
+					    attr);
+		TEST_ASSERT(ret == 0, "%s unavailable", sr[i].name);
+
+		/* Check that we can write back what we read */
+		ret = __kvm_device_attr_get(gic, KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS,
+					    attr, &val);
+		TEST_ASSERT(ret == 0 || !check(gic, &sr[i], "read"), "%s unreadable", sr[i].name);
+		ret = __kvm_device_attr_set(gic, KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS,
+					    attr, &val);
+		TEST_ASSERT(ret == 0 || !check(gic, &sr[i], "write"), "%s unwritable", sr[i].name);
+	}
+}
+
+static u8 get_ctlr_pribits(int gic)
+{
+	int ret;
+	u64 val;
+	u8 pri;
+
+	ret = __kvm_device_attr_get(gic, KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS,
+				    PACK_SR(SYS_ICC_CTLR_EL1), &val);
+	TEST_ASSERT(ret == 0, "ICC_CTLR_EL1 unreadable");
+
+	pri = FIELD_GET(ICC_CTLR_EL1_PRI_BITS_MASK, val) + 1;
+	TEST_ASSERT(pri >= 5 && pri <= 7, "Bad pribits %d", pri);
+
+	return pri;
+}
+
+static int check_unaccessible_el1_regs(int gic, const struct sr_def *sr, const char *what)
+{
+	switch (sr->encoding) {
+	case SYS_ICC_AP0R1_EL1:
+	case SYS_ICC_AP1R1_EL1:
+		if (get_ctlr_pribits(gic) >= 6)
+			return -EINVAL;
+		break;
+	case SYS_ICC_AP0R2_EL1:
+	case SYS_ICC_AP0R3_EL1:
+	case SYS_ICC_AP1R2_EL1:
+	case SYS_ICC_AP1R3_EL1:
+		if (get_ctlr_pribits(gic) == 7)
+			return 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	pr_info("SKIP %s for %s\n", sr->name, what);
+	return 0;
+}
+
+static u8 get_vtr_pribits(int gic)
+{
+	int ret;
+	u64 val;
+	u8 pri;
+
+	ret = __kvm_device_attr_get(gic, KVM_DEV_ARM_VGIC_GRP_CPU_SYSREGS,
+				    PACK_SR(SYS_ICH_VTR_EL2), &val);
+	TEST_ASSERT(ret == 0, "ICH_VTR_EL2 unreadable");
+
+	pri = FIELD_GET(ICH_VTR_EL2_PRIbits, val) + 1;
+	TEST_ASSERT(pri >= 5 && pri <= 7, "Bad pribits %d", pri);
+
+	return pri;
+}
+
+static int check_unaccessible_el2_regs(int gic, const struct sr_def *sr, const char *what)
+{
+	switch (sr->encoding) {
+	case SYS_ICH_AP0R1_EL2:
+	case SYS_ICH_AP1R1_EL2:
+		if (get_vtr_pribits(gic) >= 6)
+			return -EINVAL;
+		break;
+	case SYS_ICH_AP0R2_EL2:
+	case SYS_ICH_AP0R3_EL2:
+	case SYS_ICH_AP1R2_EL2:
+	case SYS_ICH_AP1R3_EL2:
+		if (get_vtr_pribits(gic) == 7)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	pr_info("SKIP %s for %s\n", sr->name, what);
+	return 0;
+}
+
+static void test_v3_sysregs(void)
+{
+	struct kvm_vcpu_init init = {};
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	u32 feat = 0;
+	int gic;
+
+	if (kvm_check_cap(KVM_CAP_ARM_EL2))
+		feat |= BIT(KVM_ARM_VCPU_HAS_EL2);
+
+	vm = vm_create(1);
+
+	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &init);
+	init.features[0] |= feat;
+
+	vcpu = aarch64_vcpu_add(vm, 0, &init, NULL);
+	TEST_ASSERT(vcpu, "Can't create a vcpu?");
+
+	gic = kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3);
+	TEST_ASSERT(gic >= 0, "No GIC???");
+
+	kvm_device_attr_set(gic, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	test_sysreg_array(gic, sysregs_el1, ARRAY_SIZE(sysregs_el1), check_unaccessible_el1_regs);
+	if (feat)
+		test_sysreg_array(gic, sysregs_el2, ARRAY_SIZE(sysregs_el2), check_unaccessible_el2_regs);
+	else
+		pr_info("SKIP EL2 registers, not available\n");
+
+	close(gic);
+	kvm_vm_free(vm);
+}
+
+void run_tests(uint32_t gic_dev_type)
+{
+	test_vcpus_then_vgic(gic_dev_type);
+	test_vgic_then_vcpus(gic_dev_type);
+
+	if (VGIC_DEV_IS_V2(gic_dev_type))
+		test_v2_uaccess_cpuif_no_vcpus();
+
+	if (VGIC_DEV_IS_V3(gic_dev_type)) {
+		test_v3_new_redist_regions();
+		test_v3_typer_accesses();
+		test_v3_last_bit_redist_regions();
+		test_v3_last_bit_single_rdist();
+		test_v3_redist_ipa_range_check_at_vcpu_run();
+		test_v3_its_region();
+		test_v3_sysregs();
+		test_v3_nassgicap();
+	}
+}
+
+int main(int ac, char **av)
+{
+	int ret;
+	int pa_bits;
+	int cnt_impl = 0;
+
+	test_disable_default_vgic();
+
+	pa_bits = vm_guest_mode_params[VM_MODE_DEFAULT].pa_bits;
+	max_phys_size = 1ULL << pa_bits;
+
+	ret = test_kvm_device(KVM_DEV_TYPE_ARM_VGIC_V3);
+	if (!ret) {
+		pr_info("Running GIC_v3 tests.\n");
+		run_tests(KVM_DEV_TYPE_ARM_VGIC_V3);
+		cnt_impl++;
+	}
+
+	ret = test_kvm_device(KVM_DEV_TYPE_ARM_VGIC_V2);
+	if (!ret) {
+		pr_info("Running GIC_v2 tests.\n");
+		run_tests(KVM_DEV_TYPE_ARM_VGIC_V2);
+		cnt_impl++;
+	}
+
+	if (!cnt_impl) {
+		print_skip("No GICv2 nor GICv3 support");
+		exit(KSFT_SKIP);
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/vgic_irq.c b/tools/testing/selftests/kvm/arm64/vgic_irq.c
new file mode 100644
index 000000000000..2fb2c7939fe9
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/vgic_irq.c
@@ -0,0 +1,1084 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * vgic_irq.c - Test userspace injection of IRQs
+ *
+ * This test validates the injection of IRQs from userspace using various
+ * methods (e.g., KVM_IRQ_LINE) and modes (e.g., EOI). The guest "asks" the
+ * host to inject a specific intid via a GUEST_SYNC call, and then checks that
+ * it received it.
+ */
+#include <asm/kvm.h>
+#include <asm/kvm_para.h>
+#include <sys/eventfd.h>
+#include <linux/sizes.h>
+
+#include "processor.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "gic.h"
+#include "gic_v3.h"
+#include "vgic.h"
+
+/*
+ * Stores the user specified args; it's passed to the guest and to every test
+ * function.
+ */
+struct test_args {
+	uint32_t nr_irqs; /* number of KVM supported IRQs. */
+	bool eoi_split; /* 1 is eoir+dir, 0 is eoir only */
+	bool level_sensitive; /* 1 is level, 0 is edge */
+	int kvm_max_routes; /* output of KVM_CAP_IRQ_ROUTING */
+	bool kvm_supports_irqfd; /* output of KVM_CAP_IRQFD */
+	uint32_t shared_data;
+};
+
+/*
+ * KVM implements 32 priority levels:
+ * 0x00 (highest priority) - 0xF8 (lowest priority), in steps of 8
+ *
+ * Note that these macros will still be correct in the case that KVM implements
+ * more priority levels. Also note that 32 is the minimum for GICv3 and GICv2.
+ */
+#define KVM_NUM_PRIOS		32
+#define KVM_PRIO_SHIFT		3 /* steps of 8 = 1 << 3 */
+#define KVM_PRIO_STEPS		(1 << KVM_PRIO_SHIFT) /* 8 */
+#define LOWEST_PRIO		(KVM_NUM_PRIOS - 1)
+#define CPU_PRIO_MASK		(LOWEST_PRIO << KVM_PRIO_SHIFT)	/* 0xf8 */
+#define IRQ_DEFAULT_PRIO	(LOWEST_PRIO - 1)
+#define IRQ_DEFAULT_PRIO_REG	(IRQ_DEFAULT_PRIO << KVM_PRIO_SHIFT) /* 0xf0 */
+
+/*
+ * The kvm_inject_* utilities are used by the guest to ask the host to inject
+ * interrupts (e.g., using the KVM_IRQ_LINE ioctl).
+ */
+
+typedef enum {
+	KVM_INJECT_EDGE_IRQ_LINE = 1,
+	KVM_SET_IRQ_LINE,
+	KVM_SET_IRQ_LINE_HIGH,
+	KVM_SET_LEVEL_INFO_HIGH,
+	KVM_INJECT_IRQFD,
+	KVM_WRITE_ISPENDR,
+	KVM_WRITE_ISACTIVER,
+} kvm_inject_cmd;
+
+struct kvm_inject_args {
+	kvm_inject_cmd cmd;
+	uint32_t first_intid;
+	uint32_t num;
+	int level;
+	bool expect_failure;
+};
+
+/* Used on the guest side to perform the hypercall. */
+static void kvm_inject_call(kvm_inject_cmd cmd, uint32_t first_intid,
+		uint32_t num, int level, bool expect_failure);
+
+/* Used on the host side to get the hypercall info. */
+static void kvm_inject_get_call(struct kvm_vm *vm, struct ucall *uc,
+		struct kvm_inject_args *args);
+
+#define _KVM_INJECT_MULTI(cmd, intid, num, expect_failure)			\
+	kvm_inject_call(cmd, intid, num, -1 /* not used */, expect_failure)
+
+#define KVM_INJECT_MULTI(cmd, intid, num)					\
+	_KVM_INJECT_MULTI(cmd, intid, num, false)
+
+#define _KVM_INJECT(cmd, intid, expect_failure)					\
+	_KVM_INJECT_MULTI(cmd, intid, 1, expect_failure)
+
+#define KVM_INJECT(cmd, intid)							\
+	_KVM_INJECT_MULTI(cmd, intid, 1, false)
+
+#define KVM_ACTIVATE(cmd, intid)						\
+	kvm_inject_call(cmd, intid, 1, 1, false);
+
+struct kvm_inject_desc {
+	kvm_inject_cmd cmd;
+	/* can inject PPIs, PPIs, and/or SPIs. */
+	bool sgi, ppi, spi;
+};
+
+static struct kvm_inject_desc inject_edge_fns[] = {
+	/*                                      sgi    ppi    spi */
+	{ KVM_INJECT_EDGE_IRQ_LINE,		false, false, true },
+	{ KVM_INJECT_IRQFD,			false, false, true },
+	{ KVM_WRITE_ISPENDR,			true,  false, true },
+	{ 0, },
+};
+
+static struct kvm_inject_desc inject_level_fns[] = {
+	/*                                      sgi    ppi    spi */
+	{ KVM_SET_IRQ_LINE_HIGH,		false, true,  true },
+	{ KVM_SET_LEVEL_INFO_HIGH,		false, true,  true },
+	{ KVM_INJECT_IRQFD,			false, false, true },
+	{ KVM_WRITE_ISPENDR,			false, true,  true },
+	{ 0, },
+};
+
+static struct kvm_inject_desc set_active_fns[] = {
+	/*                                      sgi    ppi    spi */
+	{ KVM_WRITE_ISACTIVER,			true,  true,  true },
+	{ 0, },
+};
+
+#define for_each_inject_fn(t, f)						\
+	for ((f) = (t); (f)->cmd; (f)++)
+
+#define for_each_supported_inject_fn(args, t, f)				\
+	for_each_inject_fn(t, f)						\
+		if ((args)->kvm_supports_irqfd || (f)->cmd != KVM_INJECT_IRQFD)
+
+#define for_each_supported_activate_fn(args, t, f)				\
+	for_each_supported_inject_fn((args), (t), (f))
+
+/* Shared between the guest main thread and the IRQ handlers. */
+volatile uint64_t irq_handled;
+volatile uint32_t irqnr_received[MAX_SPI + 1];
+
+static void reset_stats(void)
+{
+	int i;
+
+	irq_handled = 0;
+	for (i = 0; i <= MAX_SPI; i++)
+		irqnr_received[i] = 0;
+}
+
+static uint64_t gic_read_ap1r0(void)
+{
+	uint64_t reg = read_sysreg_s(SYS_ICC_AP1R0_EL1);
+
+	dsb(sy);
+	return reg;
+}
+
+static void gic_write_ap1r0(uint64_t val)
+{
+	write_sysreg_s(val, SYS_ICC_AP1R0_EL1);
+	isb();
+}
+
+static void guest_set_irq_line(uint32_t intid, uint32_t level);
+
+static void guest_irq_generic_handler(bool eoi_split, bool level_sensitive)
+{
+	uint32_t intid = gic_get_and_ack_irq();
+
+	if (intid == IAR_SPURIOUS)
+		return;
+
+	GUEST_ASSERT(gic_irq_get_active(intid));
+
+	if (!level_sensitive)
+		GUEST_ASSERT(!gic_irq_get_pending(intid));
+
+	if (level_sensitive)
+		guest_set_irq_line(intid, 0);
+
+	GUEST_ASSERT(intid < MAX_SPI);
+	irqnr_received[intid] += 1;
+	irq_handled += 1;
+
+	gic_set_eoi(intid);
+	GUEST_ASSERT_EQ(gic_read_ap1r0(), 0);
+	if (eoi_split)
+		gic_set_dir(intid);
+
+	GUEST_ASSERT(!gic_irq_get_active(intid));
+	GUEST_ASSERT(!gic_irq_get_pending(intid));
+}
+
+static void kvm_inject_call(kvm_inject_cmd cmd, uint32_t first_intid,
+		uint32_t num, int level, bool expect_failure)
+{
+	struct kvm_inject_args args = {
+		.cmd = cmd,
+		.first_intid = first_intid,
+		.num = num,
+		.level = level,
+		.expect_failure = expect_failure,
+	};
+	GUEST_SYNC(&args);
+}
+
+#define GUEST_ASSERT_IAR_EMPTY()						\
+do { 										\
+	uint32_t _intid;							\
+	_intid = gic_get_and_ack_irq();						\
+	GUEST_ASSERT(_intid == IAR_SPURIOUS);					\
+} while (0)
+
+#define CAT_HELPER(a, b) a ## b
+#define CAT(a, b) CAT_HELPER(a, b)
+#define PREFIX guest_irq_handler_
+#define GUEST_IRQ_HANDLER_NAME(split, lev) CAT(PREFIX, CAT(split, lev))
+#define GENERATE_GUEST_IRQ_HANDLER(split, lev)					\
+static void CAT(PREFIX, CAT(split, lev))(struct ex_regs *regs)			\
+{										\
+	guest_irq_generic_handler(split, lev);					\
+}
+
+GENERATE_GUEST_IRQ_HANDLER(0, 0);
+GENERATE_GUEST_IRQ_HANDLER(0, 1);
+GENERATE_GUEST_IRQ_HANDLER(1, 0);
+GENERATE_GUEST_IRQ_HANDLER(1, 1);
+
+static void (*guest_irq_handlers[2][2])(struct ex_regs *) = {
+	{GUEST_IRQ_HANDLER_NAME(0, 0), GUEST_IRQ_HANDLER_NAME(0, 1),},
+	{GUEST_IRQ_HANDLER_NAME(1, 0), GUEST_IRQ_HANDLER_NAME(1, 1),},
+};
+
+static void reset_priorities(struct test_args *args)
+{
+	int i;
+
+	for (i = 0; i < args->nr_irqs; i++)
+		gic_set_priority(i, IRQ_DEFAULT_PRIO_REG);
+}
+
+static void guest_set_irq_line(uint32_t intid, uint32_t level)
+{
+	kvm_inject_call(KVM_SET_IRQ_LINE, intid, 1, level, false);
+}
+
+static void test_inject_fail(struct test_args *args,
+		uint32_t intid, kvm_inject_cmd cmd)
+{
+	reset_stats();
+
+	_KVM_INJECT(cmd, intid, true);
+	/* no IRQ to handle on entry */
+
+	GUEST_ASSERT_EQ(irq_handled, 0);
+	GUEST_ASSERT_IAR_EMPTY();
+}
+
+static void guest_inject(struct test_args *args,
+		uint32_t first_intid, uint32_t num,
+		kvm_inject_cmd cmd)
+{
+	uint32_t i;
+
+	reset_stats();
+
+	/* Cycle over all priorities to make things more interesting. */
+	for (i = first_intid; i < num + first_intid; i++)
+		gic_set_priority(i, (i % (KVM_NUM_PRIOS - 1)) << 3);
+
+	asm volatile("msr daifset, #2" : : : "memory");
+	KVM_INJECT_MULTI(cmd, first_intid, num);
+
+	while (irq_handled < num) {
+		wfi();
+		local_irq_enable();
+		isb(); /* handle IRQ */
+		local_irq_disable();
+	}
+	local_irq_enable();
+
+	GUEST_ASSERT_EQ(irq_handled, num);
+	for (i = first_intid; i < num + first_intid; i++)
+		GUEST_ASSERT_EQ(irqnr_received[i], 1);
+	GUEST_ASSERT_IAR_EMPTY();
+
+	reset_priorities(args);
+}
+
+/*
+ * Restore the active state of multiple concurrent IRQs (given by
+ * concurrent_irqs).  This does what a live-migration would do on the
+ * destination side assuming there are some active IRQs that were not
+ * deactivated yet.
+ */
+static void guest_restore_active(struct test_args *args,
+		uint32_t first_intid, uint32_t num,
+		kvm_inject_cmd cmd)
+{
+	uint32_t prio, intid, ap1r;
+	int i;
+
+	/*
+	 * Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
+	 * in descending order, so intid+1 can preempt intid.
+	 */
+	for (i = 0, prio = (num - 1) * 8; i < num; i++, prio -= 8) {
+		GUEST_ASSERT(prio >= 0);
+		intid = i + first_intid;
+		gic_set_priority(intid, prio);
+	}
+
+	/*
+	 * In a real migration, KVM would restore all GIC state before running
+	 * guest code.
+	 */
+	for (i = 0; i < num; i++) {
+		intid = i + first_intid;
+		KVM_ACTIVATE(cmd, intid);
+		ap1r = gic_read_ap1r0();
+		ap1r |= 1U << i;
+		gic_write_ap1r0(ap1r);
+	}
+
+	/* This is where the "migration" would occur. */
+
+	/* finish handling the IRQs starting with the highest priority one. */
+	for (i = 0; i < num; i++) {
+		intid = num - i - 1 + first_intid;
+		gic_set_eoi(intid);
+		if (args->eoi_split)
+			gic_set_dir(intid);
+	}
+
+	for (i = 0; i < num; i++)
+		GUEST_ASSERT(!gic_irq_get_active(i + first_intid));
+	GUEST_ASSERT_EQ(gic_read_ap1r0(), 0);
+	GUEST_ASSERT_IAR_EMPTY();
+}
+
+/*
+ * Polls the IAR until it's not a spurious interrupt.
+ *
+ * This function should only be used in test_inject_preemption (with IRQs
+ * masked).
+ */
+static uint32_t wait_for_and_activate_irq(void)
+{
+	uint32_t intid;
+
+	do {
+		asm volatile("wfi" : : : "memory");
+		intid = gic_get_and_ack_irq();
+	} while (intid == IAR_SPURIOUS);
+
+	return intid;
+}
+
+/*
+ * Inject multiple concurrent IRQs (num IRQs starting at first_intid) and
+ * handle them without handling the actual exceptions.  This is done by masking
+ * interrupts for the whole test.
+ */
+static void test_inject_preemption(struct test_args *args,
+				   uint32_t first_intid, int num,
+				   const unsigned long *exclude,
+				   kvm_inject_cmd cmd)
+{
+	uint32_t intid, prio, step = KVM_PRIO_STEPS;
+	int i;
+
+	/* Set the priorities of the first (KVM_NUM_PRIOS - 1) IRQs
+	 * in descending order, so intid+1 can preempt intid.
+	 */
+	for (i = 0, prio = (num - 1) * step; i < num; i++, prio -= step) {
+		GUEST_ASSERT(prio >= 0);
+		intid = i + first_intid;
+		gic_set_priority(intid, prio);
+	}
+
+	local_irq_disable();
+
+	for (i = 0; i < num; i++) {
+		uint32_t tmp;
+		intid = i + first_intid;
+
+		if (exclude && test_bit(i, exclude))
+			continue;
+
+		KVM_INJECT(cmd, intid);
+		/* Each successive IRQ will preempt the previous one. */
+		tmp = wait_for_and_activate_irq();
+		GUEST_ASSERT_EQ(tmp, intid);
+		if (args->level_sensitive)
+			guest_set_irq_line(intid, 0);
+	}
+
+	/* finish handling the IRQs starting with the highest priority one. */
+	for (i = 0; i < num; i++) {
+		intid = num - i - 1 + first_intid;
+
+		if (exclude && test_bit(intid - first_intid, exclude))
+			continue;
+
+		gic_set_eoi(intid);
+	}
+
+	if (args->eoi_split) {
+		for (i = 0; i < num; i++) {
+			intid = i + first_intid;
+
+			if (exclude && test_bit(i, exclude))
+				continue;
+
+			if (args->eoi_split)
+				gic_set_dir(intid);
+		}
+	}
+
+	local_irq_enable();
+
+	for (i = 0; i < num; i++) {
+		if (exclude && test_bit(i, exclude))
+			continue;
+
+		GUEST_ASSERT(!gic_irq_get_active(i + first_intid));
+	}
+	GUEST_ASSERT_EQ(gic_read_ap1r0(), 0);
+	GUEST_ASSERT_IAR_EMPTY();
+
+	reset_priorities(args);
+}
+
+static void test_injection(struct test_args *args, struct kvm_inject_desc *f)
+{
+	uint32_t nr_irqs = args->nr_irqs;
+
+	if (f->sgi) {
+		guest_inject(args, MIN_SGI, 1, f->cmd);
+		guest_inject(args, 0, 16, f->cmd);
+	}
+
+	if (f->ppi)
+		guest_inject(args, MIN_PPI, 1, f->cmd);
+
+	if (f->spi) {
+		guest_inject(args, MIN_SPI, 1, f->cmd);
+		guest_inject(args, nr_irqs - 1, 1, f->cmd);
+		guest_inject(args, MIN_SPI, nr_irqs - MIN_SPI, f->cmd);
+	}
+}
+
+static void test_injection_failure(struct test_args *args,
+		struct kvm_inject_desc *f)
+{
+	uint32_t bad_intid[] = { args->nr_irqs, 1020, 1024, 1120, 5120, ~0U, };
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(bad_intid); i++)
+		test_inject_fail(args, bad_intid[i], f->cmd);
+}
+
+static void test_preemption(struct test_args *args, struct kvm_inject_desc *f)
+{
+	/* Timer PPIs cannot be injected from userspace */
+	static const unsigned long ppi_exclude = (BIT(27 - MIN_PPI) |
+						  BIT(30 - MIN_PPI) |
+						  BIT(28 - MIN_PPI) |
+						  BIT(26 - MIN_PPI));
+
+	if (f->sgi)
+		test_inject_preemption(args, MIN_SGI, 16, NULL, f->cmd);
+
+	if (f->ppi)
+		test_inject_preemption(args, MIN_PPI, 16, &ppi_exclude, f->cmd);
+
+	if (f->spi)
+		test_inject_preemption(args, MIN_SPI, 31, NULL, f->cmd);
+}
+
+static void test_restore_active(struct test_args *args, struct kvm_inject_desc *f)
+{
+	if (f->sgi)
+		guest_restore_active(args, MIN_SGI, 16, f->cmd);
+
+	if (f->ppi)
+		guest_restore_active(args, MIN_PPI, 16, f->cmd);
+
+	if (f->spi)
+		guest_restore_active(args, MIN_SPI, 31, f->cmd);
+}
+
+static void guest_code(struct test_args *args)
+{
+	uint32_t i, nr_irqs = args->nr_irqs;
+	bool level_sensitive = args->level_sensitive;
+	struct kvm_inject_desc *f, *inject_fns;
+
+	gic_init(GIC_V3, 1);
+
+	for (i = MIN_SPI; i < nr_irqs; i++)
+		gic_irq_set_config(i, !level_sensitive);
+
+	for (i = 0; i < nr_irqs; i++)
+		gic_irq_enable(i);
+
+	gic_set_eoi_split(args->eoi_split);
+
+	reset_priorities(args);
+	gic_set_priority_mask(CPU_PRIO_MASK);
+
+	inject_fns  = level_sensitive ? inject_level_fns
+				      : inject_edge_fns;
+
+	local_irq_enable();
+
+	/* Start the tests. */
+	for_each_supported_inject_fn(args, inject_fns, f) {
+		test_injection(args, f);
+		test_preemption(args, f);
+		test_injection_failure(args, f);
+	}
+
+	/*
+	 * Restore the active state of IRQs. This would happen when live
+	 * migrating IRQs in the middle of being handled.
+	 */
+	for_each_supported_activate_fn(args, set_active_fns, f)
+		test_restore_active(args, f);
+
+	GUEST_DONE();
+}
+
+static void kvm_irq_line_check(struct kvm_vm *vm, uint32_t intid, int level,
+			struct test_args *test_args, bool expect_failure)
+{
+	int ret;
+
+	if (!expect_failure) {
+		kvm_arm_irq_line(vm, intid, level);
+	} else {
+		/* The interface doesn't allow larger intid's. */
+		if (intid > KVM_ARM_IRQ_NUM_MASK)
+			return;
+
+		ret = _kvm_arm_irq_line(vm, intid, level);
+		TEST_ASSERT(ret != 0 && errno == EINVAL,
+				"Bad intid %i did not cause KVM_IRQ_LINE "
+				"error: rc: %i errno: %i", intid, ret, errno);
+	}
+}
+
+void kvm_irq_set_level_info_check(int gic_fd, uint32_t intid, int level,
+			bool expect_failure)
+{
+	if (!expect_failure) {
+		kvm_irq_set_level_info(gic_fd, intid, level);
+	} else {
+		int ret = _kvm_irq_set_level_info(gic_fd, intid, level);
+		/*
+		 * The kernel silently fails for invalid SPIs and SGIs (which
+		 * are not level-sensitive). It only checks for intid to not
+		 * spill over 1U << 10 (the max reserved SPI). Also, callers
+		 * are supposed to mask the intid with 0x3ff (1023).
+		 */
+		if (intid > VGIC_MAX_RESERVED)
+			TEST_ASSERT(ret != 0 && errno == EINVAL,
+				"Bad intid %i did not cause VGIC_GRP_LEVEL_INFO "
+				"error: rc: %i errno: %i", intid, ret, errno);
+		else
+			TEST_ASSERT(!ret, "KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO "
+				"for intid %i failed, rc: %i errno: %i",
+				intid, ret, errno);
+	}
+}
+
+static void kvm_set_gsi_routing_irqchip_check(struct kvm_vm *vm,
+		uint32_t intid, uint32_t num, uint32_t kvm_max_routes,
+		bool expect_failure)
+{
+	struct kvm_irq_routing *routing;
+	int ret;
+	uint64_t i;
+
+	assert(num <= kvm_max_routes && kvm_max_routes <= KVM_MAX_IRQ_ROUTES);
+
+	routing = kvm_gsi_routing_create();
+	for (i = intid; i < (uint64_t)intid + num; i++)
+		kvm_gsi_routing_irqchip_add(routing, i - MIN_SPI, i - MIN_SPI);
+
+	if (!expect_failure) {
+		kvm_gsi_routing_write(vm, routing);
+	} else {
+		ret = _kvm_gsi_routing_write(vm, routing);
+		/* The kernel only checks e->irqchip.pin >= KVM_IRQCHIP_NUM_PINS */
+		if (((uint64_t)intid + num - 1 - MIN_SPI) >= KVM_IRQCHIP_NUM_PINS)
+			TEST_ASSERT(ret != 0 && errno == EINVAL,
+				"Bad intid %u did not cause KVM_SET_GSI_ROUTING "
+				"error: rc: %i errno: %i", intid, ret, errno);
+		else
+			TEST_ASSERT(ret == 0, "KVM_SET_GSI_ROUTING "
+				"for intid %i failed, rc: %i errno: %i",
+				intid, ret, errno);
+	}
+}
+
+static void kvm_irq_write_ispendr_check(int gic_fd, uint32_t intid,
+					struct kvm_vcpu *vcpu,
+					bool expect_failure)
+{
+	/*
+	 * Ignore this when expecting failure as invalid intids will lead to
+	 * either trying to inject SGIs when we configured the test to be
+	 * level_sensitive (or the reverse), or inject large intids which
+	 * will lead to writing above the ISPENDR register space (and we
+	 * don't want to do that either).
+	 */
+	if (!expect_failure)
+		kvm_irq_write_ispendr(gic_fd, intid, vcpu);
+}
+
+static void kvm_routing_and_irqfd_check(struct kvm_vm *vm,
+		uint32_t intid, uint32_t num, uint32_t kvm_max_routes,
+		bool expect_failure)
+{
+	int fd[MAX_SPI];
+	uint64_t val;
+	int ret, f;
+	uint64_t i;
+
+	/*
+	 * There is no way to try injecting an SGI or PPI as the interface
+	 * starts counting from the first SPI (above the private ones), so just
+	 * exit.
+	 */
+	if (INTID_IS_SGI(intid) || INTID_IS_PPI(intid))
+		return;
+
+	kvm_set_gsi_routing_irqchip_check(vm, intid, num,
+			kvm_max_routes, expect_failure);
+
+	/*
+	 * If expect_failure, then just to inject anyway. These
+	 * will silently fail. And in any case, the guest will check
+	 * that no actual interrupt was injected for those cases.
+	 */
+
+	for (f = 0, i = intid; i < (uint64_t)intid + num; i++, f++)
+		fd[f] = kvm_new_eventfd();
+
+	for (f = 0, i = intid; i < (uint64_t)intid + num; i++, f++) {
+		assert(i <= (uint64_t)UINT_MAX);
+		kvm_assign_irqfd(vm, i - MIN_SPI, fd[f]);
+	}
+
+	for (f = 0, i = intid; i < (uint64_t)intid + num; i++, f++) {
+		val = 1;
+		ret = write(fd[f], &val, sizeof(uint64_t));
+		TEST_ASSERT(ret == sizeof(uint64_t),
+			    __KVM_SYSCALL_ERROR("write()", ret));
+	}
+
+	for (f = 0, i = intid; i < (uint64_t)intid + num; i++, f++)
+		kvm_close(fd[f]);
+}
+
+/* handles the valid case: intid=0xffffffff num=1 */
+#define for_each_intid(first, num, tmp, i)					\
+	for ((tmp) = (i) = (first);						\
+		(tmp) < (uint64_t)(first) + (uint64_t)(num);			\
+		(tmp)++, (i)++)
+
+static void run_guest_cmd(struct kvm_vcpu *vcpu, int gic_fd,
+			  struct kvm_inject_args *inject_args,
+			  struct test_args *test_args)
+{
+	kvm_inject_cmd cmd = inject_args->cmd;
+	uint32_t intid = inject_args->first_intid;
+	uint32_t num = inject_args->num;
+	int level = inject_args->level;
+	bool expect_failure = inject_args->expect_failure;
+	struct kvm_vm *vm = vcpu->vm;
+	uint64_t tmp;
+	uint32_t i;
+
+	/* handles the valid case: intid=0xffffffff num=1 */
+	assert(intid < UINT_MAX - num || num == 1);
+
+	switch (cmd) {
+	case KVM_INJECT_EDGE_IRQ_LINE:
+		for_each_intid(intid, num, tmp, i)
+			kvm_irq_line_check(vm, i, 1, test_args,
+					expect_failure);
+		for_each_intid(intid, num, tmp, i)
+			kvm_irq_line_check(vm, i, 0, test_args,
+					expect_failure);
+		break;
+	case KVM_SET_IRQ_LINE:
+		for_each_intid(intid, num, tmp, i)
+			kvm_irq_line_check(vm, i, level, test_args,
+					expect_failure);
+		break;
+	case KVM_SET_IRQ_LINE_HIGH:
+		for_each_intid(intid, num, tmp, i)
+			kvm_irq_line_check(vm, i, 1, test_args,
+					expect_failure);
+		break;
+	case KVM_SET_LEVEL_INFO_HIGH:
+		for_each_intid(intid, num, tmp, i)
+			kvm_irq_set_level_info_check(gic_fd, i, 1,
+					expect_failure);
+		break;
+	case KVM_INJECT_IRQFD:
+		kvm_routing_and_irqfd_check(vm, intid, num,
+					test_args->kvm_max_routes,
+					expect_failure);
+		break;
+	case KVM_WRITE_ISPENDR:
+		for (i = intid; i < intid + num; i++)
+			kvm_irq_write_ispendr_check(gic_fd, i, vcpu,
+						    expect_failure);
+		break;
+	case KVM_WRITE_ISACTIVER:
+		for (i = intid; i < intid + num; i++)
+			kvm_irq_write_isactiver(gic_fd, i, vcpu);
+		break;
+	default:
+		break;
+	}
+}
+
+static void kvm_inject_get_call(struct kvm_vm *vm, struct ucall *uc,
+		struct kvm_inject_args *args)
+{
+	struct kvm_inject_args *kvm_args_hva;
+	vm_vaddr_t kvm_args_gva;
+
+	kvm_args_gva = uc->args[1];
+	kvm_args_hva = (struct kvm_inject_args *)addr_gva2hva(vm, kvm_args_gva);
+	memcpy(args, kvm_args_hva, sizeof(struct kvm_inject_args));
+}
+
+static void print_args(struct test_args *args)
+{
+	printf("nr-irqs=%d level-sensitive=%d eoi-split=%d\n",
+			args->nr_irqs, args->level_sensitive,
+			args->eoi_split);
+}
+
+static void test_vgic(uint32_t nr_irqs, bool level_sensitive, bool eoi_split)
+{
+	struct ucall uc;
+	int gic_fd;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_inject_args inject_args;
+	vm_vaddr_t args_gva;
+
+	struct test_args args = {
+		.nr_irqs = nr_irqs,
+		.level_sensitive = level_sensitive,
+		.eoi_split = eoi_split,
+		.kvm_max_routes = kvm_check_cap(KVM_CAP_IRQ_ROUTING),
+		.kvm_supports_irqfd = kvm_check_cap(KVM_CAP_IRQFD),
+	};
+
+	print_args(&args);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(vcpu);
+
+	/* Setup the guest args page (so it gets the args). */
+	args_gva = vm_vaddr_alloc_page(vm);
+	memcpy(addr_gva2hva(vm, args_gva), &args, sizeof(args));
+	vcpu_args_set(vcpu, 1, args_gva);
+
+	gic_fd = vgic_v3_setup(vm, 1, nr_irqs);
+
+	vm_install_exception_handler(vm, VECTOR_IRQ_CURRENT,
+		guest_irq_handlers[args.eoi_split][args.level_sensitive]);
+
+	while (1) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			kvm_inject_get_call(vm, &uc, &inject_args);
+			run_guest_cmd(vcpu, gic_fd, &inject_args, &args);
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	close(gic_fd);
+	kvm_vm_free(vm);
+}
+
+static void guest_code_asym_dir(struct test_args *args, int cpuid)
+{
+	gic_init(GIC_V3, 2);
+
+	gic_set_eoi_split(1);
+	gic_set_priority_mask(CPU_PRIO_MASK);
+
+	if (cpuid == 0) {
+		uint32_t intid;
+
+		local_irq_disable();
+
+		gic_set_priority(MIN_PPI, IRQ_DEFAULT_PRIO);
+		gic_irq_enable(MIN_SPI);
+		gic_irq_set_pending(MIN_SPI);
+
+		intid = wait_for_and_activate_irq();
+		GUEST_ASSERT_EQ(intid, MIN_SPI);
+
+		gic_set_eoi(intid);
+		isb();
+
+		WRITE_ONCE(args->shared_data, MIN_SPI);
+		dsb(ishst);
+
+		do {
+			dsb(ishld);
+		} while (READ_ONCE(args->shared_data) == MIN_SPI);
+		GUEST_ASSERT(!gic_irq_get_active(MIN_SPI));
+	} else {
+		do {
+			dsb(ishld);
+		} while (READ_ONCE(args->shared_data) != MIN_SPI);
+
+		gic_set_dir(MIN_SPI);
+		isb();
+
+		WRITE_ONCE(args->shared_data, 0);
+		dsb(ishst);
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_code_group_en(struct test_args *args, int cpuid)
+{
+	uint32_t intid;
+
+	gic_init(GIC_V3, 2);
+
+	gic_set_eoi_split(0);
+	gic_set_priority_mask(CPU_PRIO_MASK);
+	/* SGI0 is G0, which is disabled */
+	gic_irq_set_group(0, 0);
+
+	/* Configure all SGIs with decreasing priority */
+	for (intid = 0; intid < MIN_PPI; intid++) {
+		gic_set_priority(intid, (intid + 1) * 8);
+		gic_irq_enable(intid);
+		gic_irq_set_pending(intid);
+	}
+
+	/* Ack and EOI all G1 interrupts */
+	for (int i = 1; i < MIN_PPI; i++) {
+		intid = wait_for_and_activate_irq();
+
+		GUEST_ASSERT(intid < MIN_PPI);
+		gic_set_eoi(intid);
+		isb();
+	}
+
+	/*
+	 * Check that SGI0 is still pending, inactive, and that we cannot
+	 * ack anything.
+	 */
+	GUEST_ASSERT(gic_irq_get_pending(0));
+	GUEST_ASSERT(!gic_irq_get_active(0));
+	GUEST_ASSERT_IAR_EMPTY();
+	GUEST_ASSERT(read_sysreg_s(SYS_ICC_IAR0_EL1) == IAR_SPURIOUS);
+
+	/* Open the G0 gates, and verify we can ack SGI0 */
+	write_sysreg_s(1, SYS_ICC_IGRPEN0_EL1);
+	isb();
+
+	do {
+		intid = read_sysreg_s(SYS_ICC_IAR0_EL1);
+	} while (intid == IAR_SPURIOUS);
+
+	GUEST_ASSERT(intid == 0);
+	GUEST_DONE();
+}
+
+static void guest_code_timer_spi(struct test_args *args, int cpuid)
+{
+	uint32_t intid;
+	u64 val;
+
+	gic_init(GIC_V3, 2);
+
+	gic_set_eoi_split(1);
+	gic_set_priority_mask(CPU_PRIO_MASK);
+
+	/* Add a pending SPI so that KVM starts trapping DIR */
+	gic_set_priority(MIN_SPI + cpuid, IRQ_DEFAULT_PRIO);
+	gic_irq_set_pending(MIN_SPI + cpuid);
+
+	/* Configure the timer with a higher priority, make it pending */
+	gic_set_priority(27, IRQ_DEFAULT_PRIO - 8);
+
+	isb();
+	val = read_sysreg(cntvct_el0);
+	write_sysreg(val, cntv_cval_el0);
+	write_sysreg(1, cntv_ctl_el0);
+	isb();
+
+	GUEST_ASSERT(gic_irq_get_pending(27));
+
+	/* Enable both interrupts */
+	gic_irq_enable(MIN_SPI + cpuid);
+	gic_irq_enable(27);
+
+	/* The timer must fire */
+	intid = wait_for_and_activate_irq();
+	GUEST_ASSERT(intid == 27);
+
+	/* Check that we can deassert it */
+	write_sysreg(0, cntv_ctl_el0);
+	isb();
+
+	GUEST_ASSERT(!gic_irq_get_pending(27));
+
+	/*
+	 * Priority drop, deactivation -- we expect that the host
+	 * deactivation will have been effective
+	 */
+	gic_set_eoi(27);
+	gic_set_dir(27);
+
+	GUEST_ASSERT(!gic_irq_get_active(27));
+
+	/* Do it one more time */
+	isb();
+	val = read_sysreg(cntvct_el0);
+	write_sysreg(val, cntv_cval_el0);
+	write_sysreg(1, cntv_ctl_el0);
+	isb();
+
+	GUEST_ASSERT(gic_irq_get_pending(27));
+
+	/* The timer must fire again */
+	intid = wait_for_and_activate_irq();
+	GUEST_ASSERT(intid == 27);
+
+	GUEST_DONE();
+}
+
+static void *test_vcpu_run(void *arg)
+{
+	struct kvm_vcpu *vcpu = arg;
+	struct ucall uc;
+
+	while (1) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			return NULL;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+	return NULL;
+}
+
+static void test_vgic_two_cpus(void *gcode)
+{
+	pthread_t thr[2];
+	struct kvm_vcpu *vcpus[2];
+	struct test_args args = {};
+	struct kvm_vm *vm;
+	vm_vaddr_t args_gva;
+	int gic_fd, ret;
+
+	vm = vm_create_with_vcpus(2, gcode, vcpus);
+
+	vm_init_descriptor_tables(vm);
+	vcpu_init_descriptor_tables(vcpus[0]);
+	vcpu_init_descriptor_tables(vcpus[1]);
+
+	/* Setup the guest args page (so it gets the args). */
+	args_gva = vm_vaddr_alloc_page(vm);
+	memcpy(addr_gva2hva(vm, args_gva), &args, sizeof(args));
+	vcpu_args_set(vcpus[0], 2, args_gva, 0);
+	vcpu_args_set(vcpus[1], 2, args_gva, 1);
+
+	gic_fd = vgic_v3_setup(vm, 2, 64);
+
+	ret = pthread_create(&thr[0], NULL, test_vcpu_run, vcpus[0]);
+	if (ret)
+		TEST_FAIL("Can't create thread for vcpu 0 (%d)\n", ret);
+	ret = pthread_create(&thr[1], NULL, test_vcpu_run, vcpus[1]);
+	if (ret)
+		TEST_FAIL("Can't create thread for vcpu 1 (%d)\n", ret);
+
+	pthread_join(thr[0], NULL);
+	pthread_join(thr[1], NULL);
+
+	close(gic_fd);
+	kvm_vm_free(vm);
+}
+
+static void help(const char *name)
+{
+	printf(
+	"\n"
+	"usage: %s [-n num_irqs] [-e eoi_split] [-l level_sensitive]\n", name);
+	printf(" -n: specify number of IRQs to setup the vgic with. "
+		"It has to be a multiple of 32 and between 64 and 1024.\n");
+	printf(" -e: if 1 then EOI is split into a write to DIR on top "
+		"of writing EOI.\n");
+	printf(" -l: specify whether the IRQs are level-sensitive (1) or not (0).");
+	puts("");
+	exit(1);
+}
+
+int main(int argc, char **argv)
+{
+	uint32_t nr_irqs = 64;
+	bool default_args = true;
+	bool level_sensitive = false;
+	int opt;
+	bool eoi_split = false;
+
+	TEST_REQUIRE(kvm_supports_vgic_v3());
+	test_disable_default_vgic();
+
+	while ((opt = getopt(argc, argv, "hn:e:l:")) != -1) {
+		switch (opt) {
+		case 'n':
+			nr_irqs = atoi_non_negative("Number of IRQs", optarg);
+			if (nr_irqs > 1024 || nr_irqs % 32)
+				help(argv[0]);
+			break;
+		case 'e':
+			eoi_split = (bool)atoi_paranoid(optarg);
+			default_args = false;
+			break;
+		case 'l':
+			level_sensitive = (bool)atoi_paranoid(optarg);
+			default_args = false;
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	/*
+	 * If the user just specified nr_irqs and/or gic_version, then run all
+	 * combinations.
+	 */
+	if (default_args) {
+		test_vgic(nr_irqs, false /* level */, false /* eoi_split */);
+		test_vgic(nr_irqs, false /* level */, true /* eoi_split */);
+		test_vgic(nr_irqs, true /* level */, false /* eoi_split */);
+		test_vgic(nr_irqs, true /* level */, true /* eoi_split */);
+		test_vgic_two_cpus(guest_code_asym_dir);
+		test_vgic_two_cpus(guest_code_group_en);
+		test_vgic_two_cpus(guest_code_timer_spi);
+	} else {
+		test_vgic(nr_irqs, level_sensitive, eoi_split);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/vgic_lpi_stress.c b/tools/testing/selftests/kvm/arm64/vgic_lpi_stress.c
new file mode 100644
index 000000000000..e857a605f577
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/vgic_lpi_stress.c
@@ -0,0 +1,413 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * vgic_lpi_stress - Stress test for KVM's ITS emulation
+ *
+ * Copyright (c) 2024 Google LLC
+ */
+
+#include <linux/sizes.h>
+#include <pthread.h>
+#include <stdatomic.h>
+#include <sys/sysinfo.h>
+
+#include "kvm_util.h"
+#include "gic.h"
+#include "gic_v3.h"
+#include "gic_v3_its.h"
+#include "processor.h"
+#include "ucall.h"
+#include "vgic.h"
+
+#define TEST_MEMSLOT_INDEX	1
+
+#define GIC_LPI_OFFSET	8192
+
+static size_t nr_iterations = 1000;
+static vm_paddr_t gpa_base;
+
+static struct kvm_vm *vm;
+static struct kvm_vcpu **vcpus;
+static int its_fd;
+
+static struct test_data {
+	bool		request_vcpus_stop;
+	u32		nr_cpus;
+	u32		nr_devices;
+	u32		nr_event_ids;
+
+	vm_paddr_t	device_table;
+	vm_paddr_t	collection_table;
+	vm_paddr_t	cmdq_base;
+	void		*cmdq_base_va;
+	vm_paddr_t	itt_tables;
+
+	vm_paddr_t	lpi_prop_table;
+	vm_paddr_t	lpi_pend_tables;
+} test_data =  {
+	.nr_cpus	= 1,
+	.nr_devices	= 1,
+	.nr_event_ids	= 16,
+};
+
+static void guest_irq_handler(struct ex_regs *regs)
+{
+	u32 intid = gic_get_and_ack_irq();
+
+	if (intid == IAR_SPURIOUS)
+		return;
+
+	GUEST_ASSERT(intid >= GIC_LPI_OFFSET);
+	gic_set_eoi(intid);
+}
+
+static void guest_setup_its_mappings(void)
+{
+	u32 coll_id, device_id, event_id, intid = GIC_LPI_OFFSET;
+	u32 nr_events = test_data.nr_event_ids;
+	u32 nr_devices = test_data.nr_devices;
+	u32 nr_cpus = test_data.nr_cpus;
+
+	for (coll_id = 0; coll_id < nr_cpus; coll_id++)
+		its_send_mapc_cmd(test_data.cmdq_base_va, coll_id, coll_id, true);
+
+	/* Round-robin the LPIs to all of the vCPUs in the VM */
+	coll_id = 0;
+	for (device_id = 0; device_id < nr_devices; device_id++) {
+		vm_paddr_t itt_base = test_data.itt_tables + (device_id * SZ_64K);
+
+		its_send_mapd_cmd(test_data.cmdq_base_va, device_id,
+				  itt_base, SZ_64K, true);
+
+		for (event_id = 0; event_id < nr_events; event_id++) {
+			its_send_mapti_cmd(test_data.cmdq_base_va, device_id,
+					   event_id, coll_id, intid++);
+
+			coll_id = (coll_id + 1) % test_data.nr_cpus;
+		}
+	}
+}
+
+static void guest_invalidate_all_rdists(void)
+{
+	int i;
+
+	for (i = 0; i < test_data.nr_cpus; i++)
+		its_send_invall_cmd(test_data.cmdq_base_va, i);
+}
+
+static void guest_setup_gic(void)
+{
+	static atomic_int nr_cpus_ready = 0;
+	u32 cpuid = guest_get_vcpuid();
+
+	gic_init(GIC_V3, test_data.nr_cpus);
+	gic_rdist_enable_lpis(test_data.lpi_prop_table, SZ_64K,
+			      test_data.lpi_pend_tables + (cpuid * SZ_64K));
+
+	atomic_fetch_add(&nr_cpus_ready, 1);
+
+	if (cpuid > 0)
+		return;
+
+	while (atomic_load(&nr_cpus_ready) < test_data.nr_cpus)
+		cpu_relax();
+
+	its_init(test_data.collection_table, SZ_64K,
+		 test_data.device_table, SZ_64K,
+		 test_data.cmdq_base, SZ_64K);
+
+	guest_setup_its_mappings();
+	guest_invalidate_all_rdists();
+
+	/* SYNC to ensure ITS setup is complete */
+	for (cpuid = 0; cpuid < test_data.nr_cpus; cpuid++)
+		its_send_sync_cmd(test_data.cmdq_base_va, cpuid);
+}
+
+static void guest_code(size_t nr_lpis)
+{
+	guest_setup_gic();
+	local_irq_enable();
+
+	GUEST_SYNC(0);
+
+	/*
+	 * Don't use WFI here to avoid blocking the vCPU thread indefinitely and
+	 * never getting the stop signal.
+	 */
+	while (!READ_ONCE(test_data.request_vcpus_stop))
+		cpu_relax();
+
+	GUEST_DONE();
+}
+
+static void setup_memslot(void)
+{
+	size_t pages;
+	size_t sz;
+
+	/*
+	 * For the ITS:
+	 *  - A single level device table
+	 *  - A single level collection table
+	 *  - The command queue
+	 *  - An ITT for each device
+	 */
+	sz = (3 + test_data.nr_devices) * SZ_64K;
+
+	/*
+	 * For the redistributors:
+	 *  - A shared LPI configuration table
+	 *  - An LPI pending table for each vCPU
+	 */
+	sz += (1 + test_data.nr_cpus) * SZ_64K;
+
+	pages = sz / vm->page_size;
+	gpa_base = ((vm_compute_max_gfn(vm) + 1) * vm->page_size) - sz;
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, gpa_base,
+				    TEST_MEMSLOT_INDEX, pages, 0);
+}
+
+#define LPI_PROP_DEFAULT_PRIO	0xa0
+
+static void configure_lpis(void)
+{
+	size_t nr_lpis = test_data.nr_devices * test_data.nr_event_ids;
+	u8 *tbl = addr_gpa2hva(vm, test_data.lpi_prop_table);
+	size_t i;
+
+	for (i = 0; i < nr_lpis; i++) {
+		tbl[i] = LPI_PROP_DEFAULT_PRIO |
+			 LPI_PROP_GROUP1 |
+			 LPI_PROP_ENABLED;
+	}
+}
+
+static void setup_test_data(void)
+{
+	size_t pages_per_64k = vm_calc_num_guest_pages(vm->mode, SZ_64K);
+	u32 nr_devices = test_data.nr_devices;
+	u32 nr_cpus = test_data.nr_cpus;
+	vm_paddr_t cmdq_base;
+
+	test_data.device_table = vm_phy_pages_alloc(vm, pages_per_64k,
+						    gpa_base,
+						    TEST_MEMSLOT_INDEX);
+
+	test_data.collection_table = vm_phy_pages_alloc(vm, pages_per_64k,
+							gpa_base,
+							TEST_MEMSLOT_INDEX);
+
+	cmdq_base = vm_phy_pages_alloc(vm, pages_per_64k, gpa_base,
+				       TEST_MEMSLOT_INDEX);
+	virt_map(vm, cmdq_base, cmdq_base, pages_per_64k);
+	test_data.cmdq_base = cmdq_base;
+	test_data.cmdq_base_va = (void *)cmdq_base;
+
+	test_data.itt_tables = vm_phy_pages_alloc(vm, pages_per_64k * nr_devices,
+						  gpa_base, TEST_MEMSLOT_INDEX);
+
+	test_data.lpi_prop_table = vm_phy_pages_alloc(vm, pages_per_64k,
+						      gpa_base, TEST_MEMSLOT_INDEX);
+	configure_lpis();
+
+	test_data.lpi_pend_tables = vm_phy_pages_alloc(vm, pages_per_64k * nr_cpus,
+						       gpa_base, TEST_MEMSLOT_INDEX);
+
+	sync_global_to_guest(vm, test_data);
+}
+
+static void setup_gic(void)
+{
+	its_fd = vgic_its_setup(vm);
+}
+
+static void signal_lpi(u32 device_id, u32 event_id)
+{
+	vm_paddr_t db_addr = GITS_BASE_GPA + GITS_TRANSLATER;
+
+	struct kvm_msi msi = {
+		.address_lo	= db_addr,
+		.address_hi	= db_addr >> 32,
+		.data		= event_id,
+		.devid		= device_id,
+		.flags		= KVM_MSI_VALID_DEVID,
+	};
+
+	/*
+	 * KVM_SIGNAL_MSI returns 1 if the MSI wasn't 'blocked' by the VM,
+	 * which for arm64 implies having a valid translation in the ITS.
+	 */
+	TEST_ASSERT(__vm_ioctl(vm, KVM_SIGNAL_MSI, &msi) == 1,
+		    "KVM_SIGNAL_MSI ioctl failed");
+}
+
+static pthread_barrier_t test_setup_barrier;
+
+static void *lpi_worker_thread(void *data)
+{
+	u32 device_id = (size_t)data;
+	u32 event_id;
+	size_t i;
+
+	pthread_barrier_wait(&test_setup_barrier);
+
+	for (i = 0; i < nr_iterations; i++)
+		for (event_id = 0; event_id < test_data.nr_event_ids; event_id++)
+			signal_lpi(device_id, event_id);
+
+	return NULL;
+}
+
+static void *vcpu_worker_thread(void *data)
+{
+	struct kvm_vcpu *vcpu = data;
+	struct ucall uc;
+
+	while (true) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			pthread_barrier_wait(&test_setup_barrier);
+			continue;
+		case UCALL_DONE:
+			return NULL;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		default:
+			TEST_FAIL("Unknown ucall: %lu", uc.cmd);
+		}
+	}
+
+	return NULL;
+}
+
+static void report_stats(struct timespec delta)
+{
+	double nr_lpis;
+	double time;
+
+	nr_lpis = test_data.nr_devices * test_data.nr_event_ids * nr_iterations;
+
+	time = delta.tv_sec;
+	time += ((double)delta.tv_nsec) / NSEC_PER_SEC;
+
+	pr_info("Rate: %.2f LPIs/sec\n", nr_lpis / time);
+}
+
+static void run_test(void)
+{
+	u32 nr_devices = test_data.nr_devices;
+	u32 nr_vcpus = test_data.nr_cpus;
+	pthread_t *lpi_threads = malloc(nr_devices * sizeof(pthread_t));
+	pthread_t *vcpu_threads = malloc(nr_vcpus * sizeof(pthread_t));
+	struct timespec start, delta;
+	size_t i;
+
+	TEST_ASSERT(lpi_threads && vcpu_threads, "Failed to allocate pthread arrays");
+
+	pthread_barrier_init(&test_setup_barrier, NULL, nr_vcpus + nr_devices + 1);
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_create(&vcpu_threads[i], NULL, vcpu_worker_thread, vcpus[i]);
+
+	for (i = 0; i < nr_devices; i++)
+		pthread_create(&lpi_threads[i], NULL, lpi_worker_thread, (void *)i);
+
+	pthread_barrier_wait(&test_setup_barrier);
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+
+	for (i = 0; i < nr_devices; i++)
+		pthread_join(lpi_threads[i], NULL);
+
+	delta = timespec_elapsed(start);
+	write_guest_global(vm, test_data.request_vcpus_stop, true);
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_join(vcpu_threads[i], NULL);
+
+	report_stats(delta);
+}
+
+static void setup_vm(void)
+{
+	int i;
+
+	vcpus = malloc(test_data.nr_cpus * sizeof(struct kvm_vcpu *));
+	TEST_ASSERT(vcpus, "Failed to allocate vCPU array");
+
+	vm = vm_create_with_vcpus(test_data.nr_cpus, guest_code, vcpus);
+
+	vm_init_descriptor_tables(vm);
+	for (i = 0; i < test_data.nr_cpus; i++)
+		vcpu_init_descriptor_tables(vcpus[i]);
+
+	vm_install_exception_handler(vm, VECTOR_IRQ_CURRENT, guest_irq_handler);
+
+	setup_memslot();
+
+	setup_gic();
+
+	setup_test_data();
+}
+
+static void destroy_vm(void)
+{
+	close(its_fd);
+	kvm_vm_free(vm);
+	free(vcpus);
+}
+
+static void pr_usage(const char *name)
+{
+	pr_info("%s [-v NR_VCPUS] [-d NR_DEVICES] [-e NR_EVENTS] [-i ITERS] -h\n", name);
+	pr_info("  -v:\tnumber of vCPUs (default: %u)\n", test_data.nr_cpus);
+	pr_info("  -d:\tnumber of devices (default: %u)\n", test_data.nr_devices);
+	pr_info("  -e:\tnumber of event IDs per device (default: %u)\n", test_data.nr_event_ids);
+	pr_info("  -i:\tnumber of iterations (default: %lu)\n", nr_iterations);
+}
+
+int main(int argc, char **argv)
+{
+	u32 nr_threads;
+	int c;
+
+	TEST_REQUIRE(kvm_supports_vgic_v3());
+
+	while ((c = getopt(argc, argv, "hv:d:e:i:")) != -1) {
+		switch (c) {
+		case 'v':
+			test_data.nr_cpus = atoi(optarg);
+			break;
+		case 'd':
+			test_data.nr_devices = atoi(optarg);
+			break;
+		case 'e':
+			test_data.nr_event_ids = atoi(optarg);
+			break;
+		case 'i':
+			nr_iterations = strtoul(optarg, NULL, 0);
+			break;
+		case 'h':
+		default:
+			pr_usage(argv[0]);
+			return 1;
+		}
+	}
+
+	nr_threads = test_data.nr_cpus + test_data.nr_devices;
+	if (nr_threads > get_nprocs())
+		pr_info("WARNING: running %u threads on %d CPUs; performance is degraded.\n",
+			 nr_threads, get_nprocs());
+
+	setup_vm();
+
+	run_test();
+
+	destroy_vm();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c b/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c
new file mode 100644
index 000000000000..ae36325c022f
--- /dev/null
+++ b/tools/testing/selftests/kvm/arm64/vpmu_counter_access.c
@@ -0,0 +1,643 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vpmu_counter_access - Test vPMU event counter access
+ *
+ * Copyright (c) 2023 Google LLC.
+ *
+ * This test checks if the guest can see the same number of the PMU event
+ * counters (PMCR_EL0.N) that userspace sets, if the guest can access
+ * those counters, and if the guest is prevented from accessing any
+ * other counters.
+ * It also checks if the userspace accesses to the PMU regsisters honor the
+ * PMCR.N value that's set for the guest.
+ * This test runs only when KVM_CAP_ARM_PMU_V3 is supported on the host.
+ */
+#include <kvm_util.h>
+#include <processor.h>
+#include <test_util.h>
+#include <vgic.h>
+#include <perf/arm_pmuv3.h>
+#include <linux/bitfield.h>
+
+/* The max number of the PMU event counters (excluding the cycle counter) */
+#define ARMV8_PMU_MAX_GENERAL_COUNTERS	(ARMV8_PMU_MAX_COUNTERS - 1)
+
+/* The cycle counter bit position that's common among the PMU registers */
+#define ARMV8_PMU_CYCLE_IDX		31
+
+struct vpmu_vm {
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+};
+
+static struct vpmu_vm vpmu_vm;
+
+struct pmreg_sets {
+	uint64_t set_reg_id;
+	uint64_t clr_reg_id;
+};
+
+#define PMREG_SET(set, clr) {.set_reg_id = set, .clr_reg_id = clr}
+
+static uint64_t get_pmcr_n(uint64_t pmcr)
+{
+	return FIELD_GET(ARMV8_PMU_PMCR_N, pmcr);
+}
+
+static uint64_t get_counters_mask(uint64_t n)
+{
+	uint64_t mask = BIT(ARMV8_PMU_CYCLE_IDX);
+
+	if (n)
+		mask |= GENMASK(n - 1, 0);
+	return mask;
+}
+
+/* Read PMEVTCNTR<n>_EL0 through PMXEVCNTR_EL0 */
+static inline unsigned long read_sel_evcntr(int sel)
+{
+	write_sysreg(sel, pmselr_el0);
+	isb();
+	return read_sysreg(pmxevcntr_el0);
+}
+
+/* Write PMEVTCNTR<n>_EL0 through PMXEVCNTR_EL0 */
+static inline void write_sel_evcntr(int sel, unsigned long val)
+{
+	write_sysreg(sel, pmselr_el0);
+	isb();
+	write_sysreg(val, pmxevcntr_el0);
+	isb();
+}
+
+/* Read PMEVTYPER<n>_EL0 through PMXEVTYPER_EL0 */
+static inline unsigned long read_sel_evtyper(int sel)
+{
+	write_sysreg(sel, pmselr_el0);
+	isb();
+	return read_sysreg(pmxevtyper_el0);
+}
+
+/* Write PMEVTYPER<n>_EL0 through PMXEVTYPER_EL0 */
+static inline void write_sel_evtyper(int sel, unsigned long val)
+{
+	write_sysreg(sel, pmselr_el0);
+	isb();
+	write_sysreg(val, pmxevtyper_el0);
+	isb();
+}
+
+static void pmu_disable_reset(void)
+{
+	uint64_t pmcr = read_sysreg(pmcr_el0);
+
+	/* Reset all counters, disabling them */
+	pmcr &= ~ARMV8_PMU_PMCR_E;
+	write_sysreg(pmcr | ARMV8_PMU_PMCR_P, pmcr_el0);
+	isb();
+}
+
+#define RETURN_READ_PMEVCNTRN(n) \
+	return read_sysreg(pmevcntr##n##_el0)
+static unsigned long read_pmevcntrn(int n)
+{
+	PMEVN_SWITCH(n, RETURN_READ_PMEVCNTRN);
+	return 0;
+}
+
+#define WRITE_PMEVCNTRN(n) \
+	write_sysreg(val, pmevcntr##n##_el0)
+static void write_pmevcntrn(int n, unsigned long val)
+{
+	PMEVN_SWITCH(n, WRITE_PMEVCNTRN);
+	isb();
+}
+
+#define READ_PMEVTYPERN(n) \
+	return read_sysreg(pmevtyper##n##_el0)
+static unsigned long read_pmevtypern(int n)
+{
+	PMEVN_SWITCH(n, READ_PMEVTYPERN);
+	return 0;
+}
+
+#define WRITE_PMEVTYPERN(n) \
+	write_sysreg(val, pmevtyper##n##_el0)
+static void write_pmevtypern(int n, unsigned long val)
+{
+	PMEVN_SWITCH(n, WRITE_PMEVTYPERN);
+	isb();
+}
+
+/*
+ * The pmc_accessor structure has pointers to PMEV{CNTR,TYPER}<n>_EL0
+ * accessors that test cases will use. Each of the accessors will
+ * either directly reads/writes PMEV{CNTR,TYPER}<n>_EL0
+ * (i.e. {read,write}_pmev{cnt,type}rn()), or reads/writes them through
+ * PMXEV{CNTR,TYPER}_EL0 (i.e. {read,write}_sel_ev{cnt,type}r()).
+ *
+ * This is used to test that combinations of those accessors provide
+ * the consistent behavior.
+ */
+struct pmc_accessor {
+	/* A function to be used to read PMEVTCNTR<n>_EL0 */
+	unsigned long	(*read_cntr)(int idx);
+	/* A function to be used to write PMEVTCNTR<n>_EL0 */
+	void		(*write_cntr)(int idx, unsigned long val);
+	/* A function to be used to read PMEVTYPER<n>_EL0 */
+	unsigned long	(*read_typer)(int idx);
+	/* A function to be used to write PMEVTYPER<n>_EL0 */
+	void		(*write_typer)(int idx, unsigned long val);
+};
+
+struct pmc_accessor pmc_accessors[] = {
+	/* test with all direct accesses */
+	{ read_pmevcntrn, write_pmevcntrn, read_pmevtypern, write_pmevtypern },
+	/* test with all indirect accesses */
+	{ read_sel_evcntr, write_sel_evcntr, read_sel_evtyper, write_sel_evtyper },
+	/* read with direct accesses, and write with indirect accesses */
+	{ read_pmevcntrn, write_sel_evcntr, read_pmevtypern, write_sel_evtyper },
+	/* read with indirect accesses, and write with direct accesses */
+	{ read_sel_evcntr, write_pmevcntrn, read_sel_evtyper, write_pmevtypern },
+};
+
+/*
+ * Convert a pointer of pmc_accessor to an index in pmc_accessors[],
+ * assuming that the pointer is one of the entries in pmc_accessors[].
+ */
+#define PMC_ACC_TO_IDX(acc)	(acc - &pmc_accessors[0])
+
+#define GUEST_ASSERT_BITMAP_REG(regname, mask, set_expected)			 \
+{										 \
+	uint64_t _tval = read_sysreg(regname);					 \
+										 \
+	if (set_expected)							 \
+		__GUEST_ASSERT((_tval & mask),					 \
+				"tval: 0x%lx; mask: 0x%lx; set_expected: %u",	 \
+				_tval, mask, set_expected);			 \
+	else									 \
+		__GUEST_ASSERT(!(_tval & mask),					 \
+				"tval: 0x%lx; mask: 0x%lx; set_expected: %u",	 \
+				_tval, mask, set_expected);			 \
+}
+
+/*
+ * Check if @mask bits in {PMCNTEN,PMINTEN,PMOVS}{SET,CLR} registers
+ * are set or cleared as specified in @set_expected.
+ */
+static void check_bitmap_pmu_regs(uint64_t mask, bool set_expected)
+{
+	GUEST_ASSERT_BITMAP_REG(pmcntenset_el0, mask, set_expected);
+	GUEST_ASSERT_BITMAP_REG(pmcntenclr_el0, mask, set_expected);
+	GUEST_ASSERT_BITMAP_REG(pmintenset_el1, mask, set_expected);
+	GUEST_ASSERT_BITMAP_REG(pmintenclr_el1, mask, set_expected);
+	GUEST_ASSERT_BITMAP_REG(pmovsset_el0, mask, set_expected);
+	GUEST_ASSERT_BITMAP_REG(pmovsclr_el0, mask, set_expected);
+}
+
+/*
+ * Check if the bit in {PMCNTEN,PMINTEN,PMOVS}{SET,CLR} registers corresponding
+ * to the specified counter (@pmc_idx) can be read/written as expected.
+ * When @set_op is true, it tries to set the bit for the counter in
+ * those registers by writing the SET registers (the bit won't be set
+ * if the counter is not implemented though).
+ * Otherwise, it tries to clear the bits in the registers by writing
+ * the CLR registers.
+ * Then, it checks if the values indicated in the registers are as expected.
+ */
+static void test_bitmap_pmu_regs(int pmc_idx, bool set_op)
+{
+	uint64_t pmcr_n, test_bit = BIT(pmc_idx);
+	bool set_expected = false;
+
+	if (set_op) {
+		write_sysreg(test_bit, pmcntenset_el0);
+		write_sysreg(test_bit, pmintenset_el1);
+		write_sysreg(test_bit, pmovsset_el0);
+
+		/* The bit will be set only if the counter is implemented */
+		pmcr_n = get_pmcr_n(read_sysreg(pmcr_el0));
+		set_expected = (pmc_idx < pmcr_n) ? true : false;
+	} else {
+		write_sysreg(test_bit, pmcntenclr_el0);
+		write_sysreg(test_bit, pmintenclr_el1);
+		write_sysreg(test_bit, pmovsclr_el0);
+	}
+	check_bitmap_pmu_regs(test_bit, set_expected);
+}
+
+/*
+ * Tests for reading/writing registers for the (implemented) event counter
+ * specified by @pmc_idx.
+ */
+static void test_access_pmc_regs(struct pmc_accessor *acc, int pmc_idx)
+{
+	uint64_t write_data, read_data;
+
+	/* Disable all PMCs and reset all PMCs to zero. */
+	pmu_disable_reset();
+
+	/*
+	 * Tests for reading/writing {PMCNTEN,PMINTEN,PMOVS}{SET,CLR}_EL1.
+	 */
+
+	/* Make sure that the bit in those registers are set to 0 */
+	test_bitmap_pmu_regs(pmc_idx, false);
+	/* Test if setting the bit in those registers works */
+	test_bitmap_pmu_regs(pmc_idx, true);
+	/* Test if clearing the bit in those registers works */
+	test_bitmap_pmu_regs(pmc_idx, false);
+
+	/*
+	 * Tests for reading/writing the event type register.
+	 */
+
+	/*
+	 * Set the event type register to an arbitrary value just for testing
+	 * of reading/writing the register.
+	 * Arm ARM says that for the event from 0x0000 to 0x003F,
+	 * the value indicated in the PMEVTYPER<n>_EL0.evtCount field is
+	 * the value written to the field even when the specified event
+	 * is not supported.
+	 */
+	write_data = (ARMV8_PMU_EXCLUDE_EL1 | ARMV8_PMUV3_PERFCTR_INST_RETIRED);
+	acc->write_typer(pmc_idx, write_data);
+	read_data = acc->read_typer(pmc_idx);
+	__GUEST_ASSERT(read_data == write_data,
+		       "pmc_idx: 0x%x; acc_idx: 0x%lx; read_data: 0x%lx; write_data: 0x%lx",
+		       pmc_idx, PMC_ACC_TO_IDX(acc), read_data, write_data);
+
+	/*
+	 * Tests for reading/writing the event count register.
+	 */
+
+	read_data = acc->read_cntr(pmc_idx);
+
+	/* The count value must be 0, as it is disabled and reset */
+	__GUEST_ASSERT(read_data == 0,
+		       "pmc_idx: 0x%x; acc_idx: 0x%lx; read_data: 0x%lx",
+		       pmc_idx, PMC_ACC_TO_IDX(acc), read_data);
+
+	write_data = read_data + pmc_idx + 0x12345;
+	acc->write_cntr(pmc_idx, write_data);
+	read_data = acc->read_cntr(pmc_idx);
+	__GUEST_ASSERT(read_data == write_data,
+		       "pmc_idx: 0x%x; acc_idx: 0x%lx; read_data: 0x%lx; write_data: 0x%lx",
+		       pmc_idx, PMC_ACC_TO_IDX(acc), read_data, write_data);
+}
+
+#define INVALID_EC	(-1ul)
+uint64_t expected_ec = INVALID_EC;
+
+static void guest_sync_handler(struct ex_regs *regs)
+{
+	uint64_t esr, ec;
+
+	esr = read_sysreg(esr_el1);
+	ec = ESR_ELx_EC(esr);
+
+	__GUEST_ASSERT(expected_ec == ec,
+			"PC: 0x%lx; ESR: 0x%lx; EC: 0x%lx; EC expected: 0x%lx",
+			regs->pc, esr, ec, expected_ec);
+
+	/* skip the trapping instruction */
+	regs->pc += 4;
+
+	/* Use INVALID_EC to indicate an exception occurred */
+	expected_ec = INVALID_EC;
+}
+
+/*
+ * Run the given operation that should trigger an exception with the
+ * given exception class. The exception handler (guest_sync_handler)
+ * will reset op_end_addr to 0, expected_ec to INVALID_EC, and skip
+ * the instruction that trapped.
+ */
+#define TEST_EXCEPTION(ec, ops)				\
+({							\
+	GUEST_ASSERT(ec != INVALID_EC);			\
+	WRITE_ONCE(expected_ec, ec);			\
+	dsb(ish);					\
+	ops;						\
+	GUEST_ASSERT(expected_ec == INVALID_EC);	\
+})
+
+/*
+ * Tests for reading/writing registers for the unimplemented event counter
+ * specified by @pmc_idx (>= PMCR_EL0.N).
+ */
+static void test_access_invalid_pmc_regs(struct pmc_accessor *acc, int pmc_idx)
+{
+	/*
+	 * Reading/writing the event count/type registers should cause
+	 * an UNDEFINED exception.
+	 */
+	TEST_EXCEPTION(ESR_ELx_EC_UNKNOWN, acc->read_cntr(pmc_idx));
+	TEST_EXCEPTION(ESR_ELx_EC_UNKNOWN, acc->write_cntr(pmc_idx, 0));
+	TEST_EXCEPTION(ESR_ELx_EC_UNKNOWN, acc->read_typer(pmc_idx));
+	TEST_EXCEPTION(ESR_ELx_EC_UNKNOWN, acc->write_typer(pmc_idx, 0));
+	/*
+	 * The bit corresponding to the (unimplemented) counter in
+	 * {PMCNTEN,PMINTEN,PMOVS}{SET,CLR} registers should be RAZ.
+	 */
+	test_bitmap_pmu_regs(pmc_idx, 1);
+	test_bitmap_pmu_regs(pmc_idx, 0);
+}
+
+/*
+ * The guest is configured with PMUv3 with @expected_pmcr_n number of
+ * event counters.
+ * Check if @expected_pmcr_n is consistent with PMCR_EL0.N, and
+ * if reading/writing PMU registers for implemented or unimplemented
+ * counters works as expected.
+ */
+static void guest_code(uint64_t expected_pmcr_n)
+{
+	uint64_t pmcr, pmcr_n, unimp_mask;
+	int i, pmc;
+
+	__GUEST_ASSERT(expected_pmcr_n <= ARMV8_PMU_MAX_GENERAL_COUNTERS,
+			"Expected PMCR.N: 0x%lx; ARMv8 general counters: 0x%x",
+			expected_pmcr_n, ARMV8_PMU_MAX_GENERAL_COUNTERS);
+
+	pmcr = read_sysreg(pmcr_el0);
+	pmcr_n = get_pmcr_n(pmcr);
+
+	/* Make sure that PMCR_EL0.N indicates the value userspace set */
+	__GUEST_ASSERT(pmcr_n == expected_pmcr_n,
+			"Expected PMCR.N: 0x%lx, PMCR.N: 0x%lx",
+			expected_pmcr_n, pmcr_n);
+
+	/*
+	 * Make sure that (RAZ) bits corresponding to unimplemented event
+	 * counters in {PMCNTEN,PMINTEN,PMOVS}{SET,CLR} registers are reset
+	 * to zero.
+	 * (NOTE: bits for implemented event counters are reset to UNKNOWN)
+	 */
+	unimp_mask = GENMASK_ULL(ARMV8_PMU_MAX_GENERAL_COUNTERS - 1, pmcr_n);
+	check_bitmap_pmu_regs(unimp_mask, false);
+
+	/*
+	 * Tests for reading/writing PMU registers for implemented counters.
+	 * Use each combination of PMEV{CNTR,TYPER}<n>_EL0 accessor functions.
+	 */
+	for (i = 0; i < ARRAY_SIZE(pmc_accessors); i++) {
+		for (pmc = 0; pmc < pmcr_n; pmc++)
+			test_access_pmc_regs(&pmc_accessors[i], pmc);
+	}
+
+	/*
+	 * Tests for reading/writing PMU registers for unimplemented counters.
+	 * Use each combination of PMEV{CNTR,TYPER}<n>_EL0 accessor functions.
+	 */
+	for (i = 0; i < ARRAY_SIZE(pmc_accessors); i++) {
+		for (pmc = pmcr_n; pmc < ARMV8_PMU_MAX_GENERAL_COUNTERS; pmc++)
+			test_access_invalid_pmc_regs(&pmc_accessors[i], pmc);
+	}
+
+	GUEST_DONE();
+}
+
+/* Create a VM that has one vCPU with PMUv3 configured. */
+static void create_vpmu_vm(void *guest_code)
+{
+	struct kvm_vcpu_init init;
+	uint8_t pmuver, ec;
+	uint64_t dfr0, irq = 23;
+	struct kvm_device_attr irq_attr = {
+		.group = KVM_ARM_VCPU_PMU_V3_CTRL,
+		.attr = KVM_ARM_VCPU_PMU_V3_IRQ,
+		.addr = (uint64_t)&irq,
+	};
+
+	/* The test creates the vpmu_vm multiple times. Ensure a clean state */
+	memset(&vpmu_vm, 0, sizeof(vpmu_vm));
+
+	vpmu_vm.vm = vm_create(1);
+	vm_init_descriptor_tables(vpmu_vm.vm);
+	for (ec = 0; ec < ESR_ELx_EC_MAX + 1; ec++) {
+		vm_install_sync_handler(vpmu_vm.vm, VECTOR_SYNC_CURRENT, ec,
+					guest_sync_handler);
+	}
+
+	/* Create vCPU with PMUv3 */
+	kvm_get_default_vcpu_target(vpmu_vm.vm, &init);
+	init.features[0] |= (1 << KVM_ARM_VCPU_PMU_V3);
+	vpmu_vm.vcpu = aarch64_vcpu_add(vpmu_vm.vm, 0, &init, guest_code);
+	vcpu_init_descriptor_tables(vpmu_vm.vcpu);
+
+	kvm_arch_vm_finalize_vcpus(vpmu_vm.vm);
+
+	/* Make sure that PMUv3 support is indicated in the ID register */
+	dfr0 = vcpu_get_reg(vpmu_vm.vcpu, KVM_ARM64_SYS_REG(SYS_ID_AA64DFR0_EL1));
+	pmuver = FIELD_GET(ID_AA64DFR0_EL1_PMUVer, dfr0);
+	TEST_ASSERT(pmuver != ID_AA64DFR0_EL1_PMUVer_IMP_DEF &&
+		    pmuver >= ID_AA64DFR0_EL1_PMUVer_IMP,
+		    "Unexpected PMUVER (0x%x) on the vCPU with PMUv3", pmuver);
+
+	vcpu_ioctl(vpmu_vm.vcpu, KVM_SET_DEVICE_ATTR, &irq_attr);
+}
+
+static void destroy_vpmu_vm(void)
+{
+	kvm_vm_free(vpmu_vm.vm);
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu, uint64_t pmcr_n)
+{
+	struct ucall uc;
+
+	vcpu_args_set(vcpu, 1, pmcr_n);
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		break;
+	}
+}
+
+static void test_create_vpmu_vm_with_nr_counters(unsigned int nr_counters, bool expect_fail)
+{
+	struct kvm_vcpu *vcpu;
+	unsigned int prev;
+	int ret;
+
+	create_vpmu_vm(guest_code);
+	vcpu = vpmu_vm.vcpu;
+
+	prev = get_pmcr_n(vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(SYS_PMCR_EL0)));
+
+	ret = __vcpu_device_attr_set(vcpu, KVM_ARM_VCPU_PMU_V3_CTRL,
+				     KVM_ARM_VCPU_PMU_V3_SET_NR_COUNTERS, &nr_counters);
+
+	if (expect_fail)
+		TEST_ASSERT(ret && errno == EINVAL,
+			    "Setting more PMU counters (%u) than available (%u) unexpectedly succeeded",
+			    nr_counters, prev);
+	else
+		TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_SET_DEVICE_ATTR, ret));
+
+	vcpu_device_attr_set(vcpu, KVM_ARM_VCPU_PMU_V3_CTRL, KVM_ARM_VCPU_PMU_V3_INIT, NULL);
+}
+
+/*
+ * Create a guest with one vCPU, set the PMCR_EL0.N for the vCPU to @pmcr_n,
+ * and run the test.
+ */
+static void run_access_test(uint64_t pmcr_n)
+{
+	uint64_t sp;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vcpu_init init;
+
+	pr_debug("Test with pmcr_n %lu\n", pmcr_n);
+
+	test_create_vpmu_vm_with_nr_counters(pmcr_n, false);
+	vcpu = vpmu_vm.vcpu;
+
+	/* Save the initial sp to restore them later to run the guest again */
+	sp = vcpu_get_reg(vcpu, ctxt_reg_alias(vcpu, SYS_SP_EL1));
+
+	run_vcpu(vcpu, pmcr_n);
+
+	/*
+	 * Reset and re-initialize the vCPU, and run the guest code again to
+	 * check if PMCR_EL0.N is preserved.
+	 */
+	kvm_get_default_vcpu_target(vpmu_vm.vm, &init);
+	init.features[0] |= (1 << KVM_ARM_VCPU_PMU_V3);
+	aarch64_vcpu_setup(vcpu, &init);
+	vcpu_init_descriptor_tables(vcpu);
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_SP_EL1), sp);
+	vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.pc), (uint64_t)guest_code);
+
+	run_vcpu(vcpu, pmcr_n);
+
+	destroy_vpmu_vm();
+}
+
+static struct pmreg_sets validity_check_reg_sets[] = {
+	PMREG_SET(SYS_PMCNTENSET_EL0, SYS_PMCNTENCLR_EL0),
+	PMREG_SET(SYS_PMINTENSET_EL1, SYS_PMINTENCLR_EL1),
+	PMREG_SET(SYS_PMOVSSET_EL0, SYS_PMOVSCLR_EL0),
+};
+
+/*
+ * Create a VM, and check if KVM handles the userspace accesses of
+ * the PMU register sets in @validity_check_reg_sets[] correctly.
+ */
+static void run_pmregs_validity_test(uint64_t pmcr_n)
+{
+	int i;
+	struct kvm_vcpu *vcpu;
+	uint64_t set_reg_id, clr_reg_id, reg_val;
+	uint64_t valid_counters_mask, max_counters_mask;
+
+	test_create_vpmu_vm_with_nr_counters(pmcr_n, false);
+	vcpu = vpmu_vm.vcpu;
+
+	valid_counters_mask = get_counters_mask(pmcr_n);
+	max_counters_mask = get_counters_mask(ARMV8_PMU_MAX_COUNTERS);
+
+	for (i = 0; i < ARRAY_SIZE(validity_check_reg_sets); i++) {
+		set_reg_id = validity_check_reg_sets[i].set_reg_id;
+		clr_reg_id = validity_check_reg_sets[i].clr_reg_id;
+
+		/*
+		 * Test if the 'set' and 'clr' variants of the registers
+		 * are initialized based on the number of valid counters.
+		 */
+		reg_val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(set_reg_id));
+		TEST_ASSERT((reg_val & (~valid_counters_mask)) == 0,
+			    "Initial read of set_reg: 0x%llx has unimplemented counters enabled: 0x%lx",
+			    KVM_ARM64_SYS_REG(set_reg_id), reg_val);
+
+		reg_val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(clr_reg_id));
+		TEST_ASSERT((reg_val & (~valid_counters_mask)) == 0,
+			    "Initial read of clr_reg: 0x%llx has unimplemented counters enabled: 0x%lx",
+			    KVM_ARM64_SYS_REG(clr_reg_id), reg_val);
+
+		/*
+		 * Using the 'set' variant, force-set the register to the
+		 * max number of possible counters and test if KVM discards
+		 * the bits for unimplemented counters as it should.
+		 */
+		vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(set_reg_id), max_counters_mask);
+
+		reg_val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(set_reg_id));
+		TEST_ASSERT((reg_val & (~valid_counters_mask)) == 0,
+			    "Read of set_reg: 0x%llx has unimplemented counters enabled: 0x%lx",
+			    KVM_ARM64_SYS_REG(set_reg_id), reg_val);
+
+		reg_val = vcpu_get_reg(vcpu, KVM_ARM64_SYS_REG(clr_reg_id));
+		TEST_ASSERT((reg_val & (~valid_counters_mask)) == 0,
+			    "Read of clr_reg: 0x%llx has unimplemented counters enabled: 0x%lx",
+			    KVM_ARM64_SYS_REG(clr_reg_id), reg_val);
+	}
+
+	destroy_vpmu_vm();
+}
+
+/*
+ * Create a guest with one vCPU, and attempt to set the PMCR_EL0.N for
+ * the vCPU to @pmcr_n, which is larger than the host value.
+ * The attempt should fail as @pmcr_n is too big to set for the vCPU.
+ */
+static void run_error_test(uint64_t pmcr_n)
+{
+	pr_debug("Error test with pmcr_n %lu (larger than the host)\n", pmcr_n);
+
+	test_create_vpmu_vm_with_nr_counters(pmcr_n, true);
+	destroy_vpmu_vm();
+}
+
+/*
+ * Return the default number of implemented PMU event counters excluding
+ * the cycle counter (i.e. PMCR_EL0.N value) for the guest.
+ */
+static uint64_t get_pmcr_n_limit(void)
+{
+	uint64_t pmcr;
+
+	create_vpmu_vm(guest_code);
+	pmcr = vcpu_get_reg(vpmu_vm.vcpu, KVM_ARM64_SYS_REG(SYS_PMCR_EL0));
+	destroy_vpmu_vm();
+	return get_pmcr_n(pmcr);
+}
+
+static bool kvm_supports_nr_counters_attr(void)
+{
+	bool supported;
+
+	create_vpmu_vm(NULL);
+	supported = !__vcpu_has_device_attr(vpmu_vm.vcpu, KVM_ARM_VCPU_PMU_V3_CTRL,
+					    KVM_ARM_VCPU_PMU_V3_SET_NR_COUNTERS);
+	destroy_vpmu_vm();
+
+	return supported;
+}
+
+int main(void)
+{
+	uint64_t i, pmcr_n;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ARM_PMU_V3));
+	TEST_REQUIRE(kvm_supports_vgic_v3());
+	TEST_REQUIRE(kvm_supports_nr_counters_attr());
+
+	pmcr_n = get_pmcr_n_limit();
+	for (i = 0; i <= pmcr_n; i++) {
+		run_access_test(i);
+		run_pmregs_validity_test(i);
+	}
+
+	for (i = pmcr_n + 1; i < ARMV8_PMU_MAX_COUNTERS; i++)
+		run_error_test(i);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/coalesced_io_test.c b/tools/testing/selftests/kvm/coalesced_io_test.c
new file mode 100644
index 000000000000..60cb25454899
--- /dev/null
+++ b/tools/testing/selftests/kvm/coalesced_io_test.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include <linux/sizes.h>
+
+#include <kvm_util.h>
+#include <processor.h>
+
+#include "ucall_common.h"
+
+struct kvm_coalesced_io {
+	struct kvm_coalesced_mmio_ring *ring;
+	uint32_t ring_size;
+	uint64_t mmio_gpa;
+	uint64_t *mmio;
+
+	/*
+	 * x86-only, but define pio_port for all architectures to minimize the
+	 * amount of #ifdeffery and complexity, without having to sacrifice
+	 * verbose error messages.
+	 */
+	uint8_t pio_port;
+};
+
+static struct kvm_coalesced_io kvm_builtin_io_ring;
+
+#ifdef __x86_64__
+static const int has_pio = 1;
+#else
+static const int has_pio = 0;
+#endif
+
+static void guest_code(struct kvm_coalesced_io *io)
+{
+	int i, j;
+
+	for (;;) {
+		for (j = 0; j < 1 + has_pio; j++) {
+			/*
+			 * KVM always leaves one free entry, i.e. exits to
+			 * userspace before the last entry is filled.
+			 */
+			for (i = 0; i < io->ring_size - 1; i++) {
+#ifdef __x86_64__
+				if (i & 1)
+					outl(io->pio_port, io->pio_port + i);
+				else
+#endif
+					WRITE_ONCE(*io->mmio, io->mmio_gpa + i);
+			}
+#ifdef __x86_64__
+			if (j & 1)
+				outl(io->pio_port, io->pio_port + i);
+			else
+#endif
+				WRITE_ONCE(*io->mmio, io->mmio_gpa + i);
+		}
+		GUEST_SYNC(0);
+
+		WRITE_ONCE(*io->mmio, io->mmio_gpa + i);
+#ifdef __x86_64__
+		outl(io->pio_port, io->pio_port + i);
+#endif
+	}
+}
+
+static void vcpu_run_and_verify_io_exit(struct kvm_vcpu *vcpu,
+					struct kvm_coalesced_io *io,
+					uint32_t ring_start,
+					uint32_t expected_exit)
+{
+	const bool want_pio = expected_exit == KVM_EXIT_IO;
+	struct kvm_coalesced_mmio_ring *ring = io->ring;
+	struct kvm_run *run = vcpu->run;
+	uint32_t pio_value;
+
+	WRITE_ONCE(ring->first, ring_start);
+	WRITE_ONCE(ring->last, ring_start);
+
+	vcpu_run(vcpu);
+
+	/*
+	 * Annoyingly, reading PIO data is safe only for PIO exits, otherwise
+	 * data_offset is garbage, e.g. an MMIO gpa.
+	 */
+	if (run->exit_reason == KVM_EXIT_IO)
+		pio_value = *(uint32_t *)((void *)run + run->io.data_offset);
+	else
+		pio_value = 0;
+
+	TEST_ASSERT((!want_pio && (run->exit_reason == KVM_EXIT_MMIO && run->mmio.is_write &&
+				   run->mmio.phys_addr == io->mmio_gpa && run->mmio.len == 8 &&
+				   *(uint64_t *)run->mmio.data == io->mmio_gpa + io->ring_size - 1)) ||
+		    (want_pio  && (run->exit_reason == KVM_EXIT_IO && run->io.port == io->pio_port &&
+				   run->io.direction == KVM_EXIT_IO_OUT && run->io.count == 1 &&
+				   pio_value == io->pio_port + io->ring_size - 1)),
+		    "For start = %u, expected exit on %u-byte %s write 0x%llx = %lx, got exit_reason = %u (%s)\n  "
+		    "(MMIO addr = 0x%llx, write = %u, len = %u, data = %lx)\n  "
+		    "(PIO port = 0x%x, write = %u, len = %u, count = %u, data = %x",
+		    ring_start, want_pio ? 4 : 8, want_pio ? "PIO" : "MMIO",
+		    want_pio ? (unsigned long long)io->pio_port : io->mmio_gpa,
+		    (want_pio ? io->pio_port : io->mmio_gpa) + io->ring_size - 1, run->exit_reason,
+		    run->exit_reason == KVM_EXIT_MMIO ? "MMIO" : run->exit_reason == KVM_EXIT_IO ? "PIO" : "other",
+		    run->mmio.phys_addr, run->mmio.is_write, run->mmio.len, *(uint64_t *)run->mmio.data,
+		    run->io.port, run->io.direction, run->io.size, run->io.count, pio_value);
+}
+
+static void vcpu_run_and_verify_coalesced_io(struct kvm_vcpu *vcpu,
+					     struct kvm_coalesced_io *io,
+					     uint32_t ring_start,
+					     uint32_t expected_exit)
+{
+	struct kvm_coalesced_mmio_ring *ring = io->ring;
+	int i;
+
+	vcpu_run_and_verify_io_exit(vcpu, io, ring_start, expected_exit);
+
+	TEST_ASSERT((ring->last + 1) % io->ring_size == ring->first,
+		    "Expected ring to be full (minus 1), first = %u, last = %u, max = %u, start = %u",
+		    ring->first, ring->last, io->ring_size, ring_start);
+
+	for (i = 0; i < io->ring_size - 1; i++) {
+		uint32_t idx = (ring->first + i) % io->ring_size;
+		struct kvm_coalesced_mmio *entry = &ring->coalesced_mmio[idx];
+
+#ifdef __x86_64__
+		if (i & 1)
+			TEST_ASSERT(entry->phys_addr == io->pio_port &&
+				    entry->len == 4 && entry->pio &&
+				    *(uint32_t *)entry->data == io->pio_port + i,
+				    "Wanted 4-byte port I/O 0x%x = 0x%x in entry %u, got %u-byte %s 0x%llx = 0x%x",
+				    io->pio_port, io->pio_port + i, i,
+				    entry->len, entry->pio ? "PIO" : "MMIO",
+				    entry->phys_addr, *(uint32_t *)entry->data);
+		else
+#endif
+			TEST_ASSERT(entry->phys_addr == io->mmio_gpa &&
+				    entry->len == 8 && !entry->pio,
+				    "Wanted 8-byte MMIO to 0x%lx = %lx in entry %u, got %u-byte %s 0x%llx = 0x%lx",
+				    io->mmio_gpa, io->mmio_gpa + i, i,
+				    entry->len, entry->pio ? "PIO" : "MMIO",
+				    entry->phys_addr, *(uint64_t *)entry->data);
+	}
+}
+
+static void test_coalesced_io(struct kvm_vcpu *vcpu,
+			      struct kvm_coalesced_io *io, uint32_t ring_start)
+{
+	struct kvm_coalesced_mmio_ring *ring = io->ring;
+
+	kvm_vm_register_coalesced_io(vcpu->vm, io->mmio_gpa, 8, false /* pio */);
+#ifdef __x86_64__
+	kvm_vm_register_coalesced_io(vcpu->vm, io->pio_port, 8, true /* pio */);
+#endif
+
+	vcpu_run_and_verify_coalesced_io(vcpu, io, ring_start, KVM_EXIT_MMIO);
+#ifdef __x86_64__
+	vcpu_run_and_verify_coalesced_io(vcpu, io, ring_start, KVM_EXIT_IO);
+#endif
+
+	/*
+	 * Verify ucall, which may use non-coalesced MMIO or PIO, generates an
+	 * immediate exit.
+	 */
+	WRITE_ONCE(ring->first, ring_start);
+	WRITE_ONCE(ring->last, ring_start);
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_SYNC);
+	TEST_ASSERT_EQ(ring->first, ring_start);
+	TEST_ASSERT_EQ(ring->last, ring_start);
+
+	/* Verify that non-coalesced MMIO/PIO generates an exit to userspace. */
+	kvm_vm_unregister_coalesced_io(vcpu->vm, io->mmio_gpa, 8, false /* pio */);
+	vcpu_run_and_verify_io_exit(vcpu, io, ring_start, KVM_EXIT_MMIO);
+
+#ifdef __x86_64__
+	kvm_vm_unregister_coalesced_io(vcpu->vm, io->pio_port, 8, true /* pio */);
+	vcpu_run_and_verify_io_exit(vcpu, io, ring_start, KVM_EXIT_IO);
+#endif
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int i;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_COALESCED_MMIO));
+
+#ifdef __x86_64__
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_COALESCED_PIO));
+#endif
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	kvm_builtin_io_ring = (struct kvm_coalesced_io) {
+		/*
+		 * The I/O ring is a kernel-allocated page whose address is
+		 * relative to each vCPU's run page, with the page offset
+		 * provided by KVM in the return of KVM_CAP_COALESCED_MMIO.
+		 */
+		.ring = (void *)vcpu->run +
+			(kvm_check_cap(KVM_CAP_COALESCED_MMIO) * getpagesize()),
+
+		/*
+		 * The size of the I/O ring is fixed, but KVM defines the sized
+		 * based on the kernel's PAGE_SIZE.  Thus, userspace must query
+		 * the host's page size at runtime to compute the ring size.
+		 */
+		.ring_size = (getpagesize() - sizeof(struct kvm_coalesced_mmio_ring)) /
+			     sizeof(struct kvm_coalesced_mmio),
+
+		/*
+		 * Arbitrary address+port (MMIO mustn't overlap memslots), with
+		 * the MMIO GPA identity mapped in the guest.
+		 */
+		.mmio_gpa = 4ull * SZ_1G,
+		.mmio = (uint64_t *)(4ull * SZ_1G),
+		.pio_port = 0x80,
+	};
+
+	virt_map(vm, (uint64_t)kvm_builtin_io_ring.mmio, kvm_builtin_io_ring.mmio_gpa, 1);
+
+	sync_global_to_guest(vm, kvm_builtin_io_ring);
+	vcpu_args_set(vcpu, 1, &kvm_builtin_io_ring);
+
+	for (i = 0; i < kvm_builtin_io_ring.ring_size; i++)
+		test_coalesced_io(vcpu, &kvm_builtin_io_ring, i);
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/config b/tools/testing/selftests/kvm/config
new file mode 100644
index 000000000000..96d874b239eb
--- /dev/null
+++ b/tools/testing/selftests/kvm/config
@@ -0,0 +1,6 @@
+CONFIG_KVM=y
+CONFIG_KVM_INTEL=y
+CONFIG_KVM_AMD=y
+CONFIG_EVENTFD=y
+CONFIG_USERFAULTFD=y
+CONFIG_IDLE_PAGE_TRACKING=y
diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c
new file mode 100644
index 000000000000..0202b78f8680
--- /dev/null
+++ b/tools/testing/selftests/kvm/demand_paging_test.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM demand paging test
+ * Adapted from dirty_log_test.c
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2019, Google, Inc.
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <pthread.h>
+#include <linux/userfaultfd.h>
+#include <sys/syscall.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "memstress.h"
+#include "guest_modes.h"
+#include "ucall_common.h"
+#include "userfaultfd_util.h"
+
+#ifdef __NR_userfaultfd
+
+static int nr_vcpus = 1;
+static uint64_t guest_percpu_mem_size = DEFAULT_PER_VCPU_MEM_SIZE;
+
+static size_t demand_paging_size;
+static char *guest_data_prototype;
+
+static void vcpu_worker(struct memstress_vcpu_args *vcpu_args)
+{
+	struct kvm_vcpu *vcpu = vcpu_args->vcpu;
+	int vcpu_idx = vcpu_args->vcpu_idx;
+	struct kvm_run *run = vcpu->run;
+	struct timespec start;
+	struct timespec ts_diff;
+	int ret;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+
+	/* Let the guest access its memory */
+	ret = _vcpu_run(vcpu);
+	TEST_ASSERT(ret == 0, "vcpu_run failed: %d", ret);
+	if (get_ucall(vcpu, NULL) != UCALL_SYNC) {
+		TEST_ASSERT(false,
+			    "Invalid guest sync status: exit_reason=%s",
+			    exit_reason_str(run->exit_reason));
+	}
+
+	ts_diff = timespec_elapsed(start);
+	PER_VCPU_DEBUG("vCPU %d execution time: %ld.%.9lds\n", vcpu_idx,
+		       ts_diff.tv_sec, ts_diff.tv_nsec);
+}
+
+static int handle_uffd_page_request(int uffd_mode, int uffd,
+		struct uffd_msg *msg)
+{
+	pid_t tid = syscall(__NR_gettid);
+	uint64_t addr = msg->arg.pagefault.address;
+	struct timespec start;
+	struct timespec ts_diff;
+	int r;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+
+	if (uffd_mode == UFFDIO_REGISTER_MODE_MISSING) {
+		struct uffdio_copy copy;
+
+		copy.src = (uint64_t)guest_data_prototype;
+		copy.dst = addr;
+		copy.len = demand_paging_size;
+		copy.mode = 0;
+
+		r = ioctl(uffd, UFFDIO_COPY, &copy);
+		/*
+		 * With multiple vCPU threads fault on a single page and there are
+		 * multiple readers for the UFFD, at least one of the UFFDIO_COPYs
+		 * will fail with EEXIST: handle that case without signaling an
+		 * error.
+		 *
+		 * Note that this also suppress any EEXISTs occurring from,
+		 * e.g., the first UFFDIO_COPY/CONTINUEs on a page. That never
+		 * happens here, but a realistic VMM might potentially maintain
+		 * some external state to correctly surface EEXISTs to userspace
+		 * (or prevent duplicate COPY/CONTINUEs in the first place).
+		 */
+		if (r == -1 && errno != EEXIST) {
+			pr_info("Failed UFFDIO_COPY in 0x%lx from thread %d, errno = %d\n",
+				addr, tid, errno);
+			return r;
+		}
+	} else if (uffd_mode == UFFDIO_REGISTER_MODE_MINOR) {
+		struct uffdio_continue cont = {0};
+
+		cont.range.start = addr;
+		cont.range.len = demand_paging_size;
+
+		r = ioctl(uffd, UFFDIO_CONTINUE, &cont);
+		/*
+		 * With multiple vCPU threads fault on a single page and there are
+		 * multiple readers for the UFFD, at least one of the UFFDIO_COPYs
+		 * will fail with EEXIST: handle that case without signaling an
+		 * error.
+		 *
+		 * Note that this also suppress any EEXISTs occurring from,
+		 * e.g., the first UFFDIO_COPY/CONTINUEs on a page. That never
+		 * happens here, but a realistic VMM might potentially maintain
+		 * some external state to correctly surface EEXISTs to userspace
+		 * (or prevent duplicate COPY/CONTINUEs in the first place).
+		 */
+		if (r == -1 && errno != EEXIST) {
+			pr_info("Failed UFFDIO_CONTINUE in 0x%lx, thread %d, errno = %d\n",
+				addr, tid, errno);
+			return r;
+		}
+	} else {
+		TEST_FAIL("Invalid uffd mode %d", uffd_mode);
+	}
+
+	ts_diff = timespec_elapsed(start);
+
+	PER_PAGE_DEBUG("UFFD page-in %d \t%ld ns\n", tid,
+		       timespec_to_ns(ts_diff));
+	PER_PAGE_DEBUG("Paged in %ld bytes at 0x%lx from thread %d\n",
+		       demand_paging_size, addr, tid);
+
+	return 0;
+}
+
+struct test_params {
+	int uffd_mode;
+	bool single_uffd;
+	useconds_t uffd_delay;
+	int readers_per_uffd;
+	enum vm_mem_backing_src_type src_type;
+	bool partition_vcpu_memory_access;
+};
+
+static void prefault_mem(void *alias, uint64_t len)
+{
+	size_t p;
+
+	TEST_ASSERT(alias != NULL, "Alias required for minor faults");
+	for (p = 0; p < (len / demand_paging_size); ++p) {
+		memcpy(alias + (p * demand_paging_size),
+		       guest_data_prototype, demand_paging_size);
+	}
+}
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct memstress_vcpu_args *vcpu_args;
+	struct test_params *p = arg;
+	struct uffd_desc **uffd_descs = NULL;
+	uint64_t uffd_region_size;
+	struct timespec start;
+	struct timespec ts_diff;
+	double vcpu_paging_rate;
+	struct kvm_vm *vm;
+	int i, num_uffds = 0;
+
+	vm = memstress_create_vm(mode, nr_vcpus, guest_percpu_mem_size, 1,
+				 p->src_type, p->partition_vcpu_memory_access);
+
+	demand_paging_size = get_backing_src_pagesz(p->src_type);
+
+	guest_data_prototype = malloc(demand_paging_size);
+	TEST_ASSERT(guest_data_prototype,
+		    "Failed to allocate buffer for guest data pattern");
+	memset(guest_data_prototype, 0xAB, demand_paging_size);
+
+	if (p->uffd_mode == UFFDIO_REGISTER_MODE_MINOR) {
+		num_uffds = p->single_uffd ? 1 : nr_vcpus;
+		for (i = 0; i < num_uffds; i++) {
+			vcpu_args = &memstress_args.vcpu_args[i];
+			prefault_mem(addr_gpa2alias(vm, vcpu_args->gpa),
+				     vcpu_args->pages * memstress_args.guest_page_size);
+		}
+	}
+
+	if (p->uffd_mode) {
+		num_uffds = p->single_uffd ? 1 : nr_vcpus;
+		uffd_region_size = nr_vcpus * guest_percpu_mem_size / num_uffds;
+
+		uffd_descs = malloc(num_uffds * sizeof(struct uffd_desc *));
+		TEST_ASSERT(uffd_descs, "Memory allocation failed");
+		for (i = 0; i < num_uffds; i++) {
+			struct memstress_vcpu_args *vcpu_args;
+			void *vcpu_hva;
+
+			vcpu_args = &memstress_args.vcpu_args[i];
+
+			/* Cache the host addresses of the region */
+			vcpu_hva = addr_gpa2hva(vm, vcpu_args->gpa);
+			/*
+			 * Set up user fault fd to handle demand paging
+			 * requests.
+			 */
+			uffd_descs[i] = uffd_setup_demand_paging(
+				p->uffd_mode, p->uffd_delay, vcpu_hva,
+				uffd_region_size,
+				p->readers_per_uffd,
+				&handle_uffd_page_request);
+		}
+	}
+
+	pr_info("Finished creating vCPUs and starting uffd threads\n");
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	memstress_start_vcpu_threads(nr_vcpus, vcpu_worker);
+	pr_info("Started all vCPUs\n");
+
+	memstress_join_vcpu_threads(nr_vcpus);
+	ts_diff = timespec_elapsed(start);
+	pr_info("All vCPU threads joined\n");
+
+	if (p->uffd_mode) {
+		/* Tell the user fault fd handler threads to quit */
+		for (i = 0; i < num_uffds; i++)
+			uffd_stop_demand_paging(uffd_descs[i]);
+	}
+
+	pr_info("Total guest execution time:\t%ld.%.9lds\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	vcpu_paging_rate = memstress_args.vcpu_args[0].pages /
+			   ((double)ts_diff.tv_sec + (double)ts_diff.tv_nsec / NSEC_PER_SEC);
+	pr_info("Per-vcpu demand paging rate:\t%f pgs/sec/vcpu\n",
+		vcpu_paging_rate);
+	pr_info("Overall demand paging rate:\t%f pgs/sec\n",
+		vcpu_paging_rate * nr_vcpus);
+
+	memstress_destroy_vm(vm);
+
+	free(guest_data_prototype);
+	if (p->uffd_mode)
+		free(uffd_descs);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-m vm_mode] [-u uffd_mode] [-a]\n"
+		   "          [-d uffd_delay_usec] [-r readers_per_uffd] [-b memory]\n"
+		   "          [-s type] [-v vcpus] [-c cpu_list] [-o]\n", name);
+	guest_modes_help();
+	printf(" -u: use userfaultfd to handle vCPU page faults. Mode is a\n"
+	       "     UFFD registration mode: 'MISSING' or 'MINOR'.\n");
+	kvm_print_vcpu_pinning_help();
+	printf(" -a: Use a single userfaultfd for all of guest memory, instead of\n"
+	       "     creating one for each region paged by a unique vCPU\n"
+	       "     Set implicitly with -o, and no effect without -u.\n");
+	printf(" -d: add a delay in usec to the User Fault\n"
+	       "     FD handler to simulate demand paging\n"
+	       "     overheads. Ignored without -u.\n");
+	printf(" -r: Set the number of reader threads per uffd.\n");
+	printf(" -b: specify the size of the memory region which should be\n"
+	       "     demand paged by each vCPU. e.g. 10M or 3G.\n"
+	       "     Default: 1G\n");
+	backing_src_help("-s");
+	printf(" -v: specify the number of vCPUs to run.\n");
+	printf(" -o: Overlap guest memory accesses instead of partitioning\n"
+	       "     them into a separate region of memory for each vCPU.\n");
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+	const char *cpulist = NULL;
+	struct test_params p = {
+		.src_type = DEFAULT_VM_MEM_SRC,
+		.partition_vcpu_memory_access = true,
+		.readers_per_uffd = 1,
+		.single_uffd = false,
+	};
+	int opt;
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "ahom:u:d:b:s:v:c:r:")) != -1) {
+		switch (opt) {
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'u':
+			if (!strcmp("MISSING", optarg))
+				p.uffd_mode = UFFDIO_REGISTER_MODE_MISSING;
+			else if (!strcmp("MINOR", optarg))
+				p.uffd_mode = UFFDIO_REGISTER_MODE_MINOR;
+			TEST_ASSERT(p.uffd_mode, "UFFD mode must be 'MISSING' or 'MINOR'.");
+			break;
+		case 'a':
+			p.single_uffd = true;
+			break;
+		case 'd':
+			p.uffd_delay = strtoul(optarg, NULL, 0);
+			TEST_ASSERT(p.uffd_delay >= 0, "A negative UFFD delay is not supported.");
+			break;
+		case 'b':
+			guest_percpu_mem_size = parse_size(optarg);
+			break;
+		case 's':
+			p.src_type = parse_backing_src_type(optarg);
+			break;
+		case 'v':
+			nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			TEST_ASSERT(nr_vcpus <= max_vcpus,
+				    "Invalid number of vcpus, must be between 1 and %d", max_vcpus);
+			break;
+		case 'c':
+			cpulist = optarg;
+			break;
+		case 'o':
+			p.partition_vcpu_memory_access = false;
+			p.single_uffd = true;
+			break;
+		case 'r':
+			p.readers_per_uffd = atoi(optarg);
+			TEST_ASSERT(p.readers_per_uffd >= 1,
+				    "Invalid number of readers per uffd %d: must be >=1",
+				    p.readers_per_uffd);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	if (p.uffd_mode == UFFDIO_REGISTER_MODE_MINOR &&
+	    !backing_src_is_shared(p.src_type)) {
+		TEST_FAIL("userfaultfd MINOR mode requires shared memory; pick a different -s");
+	}
+
+	if (cpulist) {
+		kvm_parse_vcpu_pinning(cpulist, memstress_args.vcpu_to_pcpu,
+				       nr_vcpus);
+		memstress_args.pin_vcpus = true;
+	}
+
+	for_each_guest_mode(run_test, &p);
+
+	return 0;
+}
+
+#else /* __NR_userfaultfd */
+
+#warning "missing __NR_userfaultfd definition"
+
+int main(void)
+{
+	print_skip("__NR_userfaultfd must be present for userfaultfd test");
+	return KSFT_SKIP;
+}
+
+#endif /* __NR_userfaultfd */
diff --git a/tools/testing/selftests/kvm/dirty_log_perf_test.c b/tools/testing/selftests/kvm/dirty_log_perf_test.c
new file mode 100644
index 000000000000..0a1ea1d1e2d8
--- /dev/null
+++ b/tools/testing/selftests/kvm/dirty_log_perf_test.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM dirty page logging performance test
+ *
+ * Based on dirty_log_test.c
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2020, Google, Inc.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <pthread.h>
+#include <linux/bitmap.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "memstress.h"
+#include "guest_modes.h"
+#include "ucall_common.h"
+
+/* How many host loops to run by default (one KVM_GET_DIRTY_LOG for each loop)*/
+#define TEST_HOST_LOOP_N		2UL
+
+static int nr_vcpus = 1;
+static uint64_t guest_percpu_mem_size = DEFAULT_PER_VCPU_MEM_SIZE;
+static bool run_vcpus_while_disabling_dirty_logging;
+
+/* Host variables */
+static u64 dirty_log_manual_caps;
+static bool host_quit;
+static int iteration;
+static int vcpu_last_completed_iteration[KVM_MAX_VCPUS];
+
+static void vcpu_worker(struct memstress_vcpu_args *vcpu_args)
+{
+	struct kvm_vcpu *vcpu = vcpu_args->vcpu;
+	int vcpu_idx = vcpu_args->vcpu_idx;
+	uint64_t pages_count = 0;
+	struct kvm_run *run;
+	struct timespec start;
+	struct timespec ts_diff;
+	struct timespec total = (struct timespec){0};
+	struct timespec avg;
+	int ret;
+
+	run = vcpu->run;
+
+	while (!READ_ONCE(host_quit)) {
+		int current_iteration = READ_ONCE(iteration);
+
+		clock_gettime(CLOCK_MONOTONIC, &start);
+		ret = _vcpu_run(vcpu);
+		ts_diff = timespec_elapsed(start);
+
+		TEST_ASSERT(ret == 0, "vcpu_run failed: %d", ret);
+		TEST_ASSERT(get_ucall(vcpu, NULL) == UCALL_SYNC,
+			    "Invalid guest sync status: exit_reason=%s",
+			    exit_reason_str(run->exit_reason));
+
+		pr_debug("Got sync event from vCPU %d\n", vcpu_idx);
+		vcpu_last_completed_iteration[vcpu_idx] = current_iteration;
+		pr_debug("vCPU %d updated last completed iteration to %d\n",
+			 vcpu_idx, vcpu_last_completed_iteration[vcpu_idx]);
+
+		if (current_iteration) {
+			pages_count += vcpu_args->pages;
+			total = timespec_add(total, ts_diff);
+			pr_debug("vCPU %d iteration %d dirty memory time: %ld.%.9lds\n",
+				vcpu_idx, current_iteration, ts_diff.tv_sec,
+				ts_diff.tv_nsec);
+		} else {
+			pr_debug("vCPU %d iteration %d populate memory time: %ld.%.9lds\n",
+				vcpu_idx, current_iteration, ts_diff.tv_sec,
+				ts_diff.tv_nsec);
+		}
+
+		/*
+		 * Keep running the guest while dirty logging is being disabled
+		 * (iteration is negative) so that vCPUs are accessing memory
+		 * for the entire duration of zapping collapsible SPTEs.
+		 */
+		while (current_iteration == READ_ONCE(iteration) &&
+		       READ_ONCE(iteration) >= 0 && !READ_ONCE(host_quit)) {}
+	}
+
+	avg = timespec_div(total, vcpu_last_completed_iteration[vcpu_idx]);
+	pr_debug("\nvCPU %d dirtied 0x%lx pages over %d iterations in %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
+		vcpu_idx, pages_count, vcpu_last_completed_iteration[vcpu_idx],
+		total.tv_sec, total.tv_nsec, avg.tv_sec, avg.tv_nsec);
+}
+
+struct test_params {
+	unsigned long iterations;
+	uint64_t phys_offset;
+	bool partition_vcpu_memory_access;
+	enum vm_mem_backing_src_type backing_src;
+	int slots;
+	uint32_t write_percent;
+	bool random_access;
+};
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct test_params *p = arg;
+	struct kvm_vm *vm;
+	unsigned long **bitmaps;
+	uint64_t guest_num_pages;
+	uint64_t host_num_pages;
+	uint64_t pages_per_slot;
+	struct timespec start;
+	struct timespec ts_diff;
+	struct timespec get_dirty_log_total = (struct timespec){0};
+	struct timespec vcpu_dirty_total = (struct timespec){0};
+	struct timespec avg;
+	struct timespec clear_dirty_log_total = (struct timespec){0};
+	int i;
+
+	vm = memstress_create_vm(mode, nr_vcpus, guest_percpu_mem_size,
+				 p->slots, p->backing_src,
+				 p->partition_vcpu_memory_access);
+
+	memstress_set_write_percent(vm, p->write_percent);
+
+	guest_num_pages = (nr_vcpus * guest_percpu_mem_size) >> vm->page_shift;
+	guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
+	host_num_pages = vm_num_host_pages(mode, guest_num_pages);
+	pages_per_slot = host_num_pages / p->slots;
+
+	bitmaps = memstress_alloc_bitmaps(p->slots, pages_per_slot);
+
+	if (dirty_log_manual_caps)
+		vm_enable_cap(vm, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2,
+			      dirty_log_manual_caps);
+
+	/* Start the iterations */
+	iteration = 0;
+	host_quit = false;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	for (i = 0; i < nr_vcpus; i++)
+		vcpu_last_completed_iteration[i] = -1;
+
+	/*
+	 * Use 100% writes during the population phase to ensure all
+	 * memory is actually populated and not just mapped to the zero
+	 * page. The prevents expensive copy-on-write faults from
+	 * occurring during the dirty memory iterations below, which
+	 * would pollute the performance results.
+	 */
+	memstress_set_write_percent(vm, 100);
+	memstress_set_random_access(vm, false);
+	memstress_start_vcpu_threads(nr_vcpus, vcpu_worker);
+
+	/* Allow the vCPUs to populate memory */
+	pr_debug("Starting iteration %d - Populating\n", iteration);
+	for (i = 0; i < nr_vcpus; i++) {
+		while (READ_ONCE(vcpu_last_completed_iteration[i]) !=
+		       iteration)
+			;
+	}
+
+	ts_diff = timespec_elapsed(start);
+	pr_info("Populate memory time: %ld.%.9lds\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	/* Enable dirty logging */
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	memstress_enable_dirty_logging(vm, p->slots);
+	ts_diff = timespec_elapsed(start);
+	pr_info("Enabling dirty logging time: %ld.%.9lds\n\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	memstress_set_write_percent(vm, p->write_percent);
+	memstress_set_random_access(vm, p->random_access);
+
+	while (iteration < p->iterations) {
+		/*
+		 * Incrementing the iteration number will start the vCPUs
+		 * dirtying memory again.
+		 */
+		clock_gettime(CLOCK_MONOTONIC, &start);
+		iteration++;
+
+		pr_debug("Starting iteration %d\n", iteration);
+		for (i = 0; i < nr_vcpus; i++) {
+			while (READ_ONCE(vcpu_last_completed_iteration[i])
+			       != iteration)
+				;
+		}
+
+		ts_diff = timespec_elapsed(start);
+		vcpu_dirty_total = timespec_add(vcpu_dirty_total, ts_diff);
+		pr_info("Iteration %d dirty memory time: %ld.%.9lds\n",
+			iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
+
+		clock_gettime(CLOCK_MONOTONIC, &start);
+		memstress_get_dirty_log(vm, bitmaps, p->slots);
+		ts_diff = timespec_elapsed(start);
+		get_dirty_log_total = timespec_add(get_dirty_log_total,
+						   ts_diff);
+		pr_info("Iteration %d get dirty log time: %ld.%.9lds\n",
+			iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
+
+		if (dirty_log_manual_caps) {
+			clock_gettime(CLOCK_MONOTONIC, &start);
+			memstress_clear_dirty_log(vm, bitmaps, p->slots,
+						  pages_per_slot);
+			ts_diff = timespec_elapsed(start);
+			clear_dirty_log_total = timespec_add(clear_dirty_log_total,
+							     ts_diff);
+			pr_info("Iteration %d clear dirty log time: %ld.%.9lds\n",
+				iteration, ts_diff.tv_sec, ts_diff.tv_nsec);
+		}
+	}
+
+	/*
+	 * Run vCPUs while dirty logging is being disabled to stress disabling
+	 * in terms of both performance and correctness.  Opt-in via command
+	 * line as this significantly increases time to disable dirty logging.
+	 */
+	if (run_vcpus_while_disabling_dirty_logging)
+		WRITE_ONCE(iteration, -1);
+
+	/* Disable dirty logging */
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	memstress_disable_dirty_logging(vm, p->slots);
+	ts_diff = timespec_elapsed(start);
+	pr_info("Disabling dirty logging time: %ld.%.9lds\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	/*
+	 * Tell the vCPU threads to quit.  No need to manually check that vCPUs
+	 * have stopped running after disabling dirty logging, the join will
+	 * wait for them to exit.
+	 */
+	host_quit = true;
+	memstress_join_vcpu_threads(nr_vcpus);
+
+	avg = timespec_div(get_dirty_log_total, p->iterations);
+	pr_info("Get dirty log over %lu iterations took %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
+		p->iterations, get_dirty_log_total.tv_sec,
+		get_dirty_log_total.tv_nsec, avg.tv_sec, avg.tv_nsec);
+
+	if (dirty_log_manual_caps) {
+		avg = timespec_div(clear_dirty_log_total, p->iterations);
+		pr_info("Clear dirty log over %lu iterations took %ld.%.9lds. (Avg %ld.%.9lds/iteration)\n",
+			p->iterations, clear_dirty_log_total.tv_sec,
+			clear_dirty_log_total.tv_nsec, avg.tv_sec, avg.tv_nsec);
+	}
+
+	memstress_free_bitmaps(bitmaps, p->slots);
+	memstress_destroy_vm(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-a] [-i iterations] [-p offset] [-g] "
+	       "[-m mode] [-n] [-b vcpu bytes] [-v vcpus] [-o] [-r random seed ] [-s mem type]"
+	       "[-x memslots] [-w percentage] [-c physical cpus to run test on]\n", name);
+	puts("");
+	printf(" -a: access memory randomly rather than in order.\n");
+	printf(" -i: specify iteration counts (default: %"PRIu64")\n",
+	       TEST_HOST_LOOP_N);
+	printf(" -g: Do not enable KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2. This\n"
+	       "     makes KVM_GET_DIRTY_LOG clear the dirty log (i.e.\n"
+	       "     KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE is not enabled)\n"
+	       "     and writes will be tracked as soon as dirty logging is\n"
+	       "     enabled on the memslot (i.e. KVM_DIRTY_LOG_INITIALLY_SET\n"
+	       "     is not enabled).\n");
+	printf(" -p: specify guest physical test memory offset\n"
+	       "     Warning: a low offset can conflict with the loaded test code.\n");
+	guest_modes_help();
+	printf(" -n: Run the vCPUs in nested mode (L2)\n");
+	printf(" -e: Run vCPUs while dirty logging is being disabled.  This\n"
+	       "     can significantly increase runtime, especially if there\n"
+	       "     isn't a dedicated pCPU for the main thread.\n");
+	printf(" -b: specify the size of the memory region which should be\n"
+	       "     dirtied by each vCPU. e.g. 10M or 3G.\n"
+	       "     (default: 1G)\n");
+	printf(" -v: specify the number of vCPUs to run.\n");
+	printf(" -o: Overlap guest memory accesses instead of partitioning\n"
+	       "     them into a separate region of memory for each vCPU.\n");
+	printf(" -r: specify the starting random seed.\n");
+	backing_src_help("-s");
+	printf(" -x: Split the memory region into this number of memslots.\n"
+	       "     (default: 1)\n");
+	printf(" -w: specify the percentage of pages which should be written to\n"
+	       "     as an integer from 0-100 inclusive. This is probabilistic,\n"
+	       "     so -w X means each page has an X%% chance of writing\n"
+	       "     and a (100-X)%% chance of reading.\n"
+	       "     (default: 100 i.e. all pages are written to.)\n");
+	kvm_print_vcpu_pinning_help();
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+	const char *pcpu_list = NULL;
+	struct test_params p = {
+		.iterations = TEST_HOST_LOOP_N,
+		.partition_vcpu_memory_access = true,
+		.backing_src = DEFAULT_VM_MEM_SRC,
+		.slots = 1,
+		.write_percent = 100,
+	};
+	int opt;
+
+	/* Override the seed to be deterministic by default. */
+	guest_random_seed = 1;
+
+	dirty_log_manual_caps =
+		kvm_check_cap(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2);
+	dirty_log_manual_caps &= (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE |
+				  KVM_DIRTY_LOG_INITIALLY_SET);
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "ab:c:eghi:m:nop:r:s:v:x:w:")) != -1) {
+		switch (opt) {
+		case 'a':
+			p.random_access = true;
+			break;
+		case 'b':
+			guest_percpu_mem_size = parse_size(optarg);
+			break;
+		case 'c':
+			pcpu_list = optarg;
+			break;
+		case 'e':
+			/* 'e' is for evil. */
+			run_vcpus_while_disabling_dirty_logging = true;
+			break;
+		case 'g':
+			dirty_log_manual_caps = 0;
+			break;
+		case 'h':
+			help(argv[0]);
+			break;
+		case 'i':
+			p.iterations = atoi_positive("Number of iterations", optarg);
+			break;
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'n':
+			memstress_args.nested = true;
+			break;
+		case 'o':
+			p.partition_vcpu_memory_access = false;
+			break;
+		case 'p':
+			p.phys_offset = strtoull(optarg, NULL, 0);
+			break;
+		case 'r':
+			guest_random_seed = atoi_positive("Random seed", optarg);
+			break;
+		case 's':
+			p.backing_src = parse_backing_src_type(optarg);
+			break;
+		case 'v':
+			nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			TEST_ASSERT(nr_vcpus <= max_vcpus,
+				    "Invalid number of vcpus, must be between 1 and %d", max_vcpus);
+			break;
+		case 'w':
+			p.write_percent = atoi_non_negative("Write percentage", optarg);
+			TEST_ASSERT(p.write_percent <= 100,
+				    "Write percentage must be between 0 and 100");
+			break;
+		case 'x':
+			p.slots = atoi_positive("Number of slots", optarg);
+			break;
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	if (pcpu_list) {
+		kvm_parse_vcpu_pinning(pcpu_list, memstress_args.vcpu_to_pcpu,
+				       nr_vcpus);
+		memstress_args.pin_vcpus = true;
+	}
+
+	TEST_ASSERT(p.iterations >= 2, "The test should have at least two iterations");
+
+	pr_info("Test iterations: %"PRIu64"\n",	p.iterations);
+
+	for_each_guest_mode(run_test, &p);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/dirty_log_test.c b/tools/testing/selftests/kvm/dirty_log_test.c
new file mode 100644
index 000000000000..d58a641b0e6a
--- /dev/null
+++ b/tools/testing/selftests/kvm/dirty_log_test.c
@@ -0,0 +1,909 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM dirty page logging test
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/atomic.h>
+#include <asm/barrier.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "guest_modes.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#define DIRTY_MEM_BITS 30 /* 1G */
+#define PAGE_SHIFT_4K  12
+
+/* The memory slot index to track dirty pages */
+#define TEST_MEM_SLOT_INDEX		1
+
+/* Default guest test virtual memory offset */
+#define DEFAULT_GUEST_TEST_MEM		0xc0000000
+
+/* How many host loops to run (one KVM_GET_DIRTY_LOG for each loop) */
+#define TEST_HOST_LOOP_N		32UL
+
+/* Interval for each host loop (ms) */
+#define TEST_HOST_LOOP_INTERVAL		10UL
+
+/*
+ * Ensure the vCPU is able to perform a reasonable number of writes in each
+ * iteration to provide a lower bound on coverage.
+ */
+#define TEST_MIN_WRITES_PER_ITERATION	0x100
+
+/* Dirty bitmaps are always little endian, so we need to swap on big endian */
+#if defined(__s390x__)
+# define BITOP_LE_SWIZZLE	((BITS_PER_LONG-1) & ~0x7)
+# define test_bit_le(nr, addr) \
+	test_bit((nr) ^ BITOP_LE_SWIZZLE, addr)
+# define __set_bit_le(nr, addr) \
+	__set_bit((nr) ^ BITOP_LE_SWIZZLE, addr)
+# define __clear_bit_le(nr, addr) \
+	__clear_bit((nr) ^ BITOP_LE_SWIZZLE, addr)
+# define __test_and_set_bit_le(nr, addr) \
+	__test_and_set_bit((nr) ^ BITOP_LE_SWIZZLE, addr)
+# define __test_and_clear_bit_le(nr, addr) \
+	__test_and_clear_bit((nr) ^ BITOP_LE_SWIZZLE, addr)
+#else
+# define test_bit_le			test_bit
+# define __set_bit_le			__set_bit
+# define __clear_bit_le			__clear_bit
+# define __test_and_set_bit_le		__test_and_set_bit
+# define __test_and_clear_bit_le	__test_and_clear_bit
+#endif
+
+#define TEST_DIRTY_RING_COUNT		65536
+
+#define SIG_IPI SIGUSR1
+
+/*
+ * Guest/Host shared variables. Ensure addr_gva2hva() and/or
+ * sync_global_to/from_guest() are used when accessing from
+ * the host. READ/WRITE_ONCE() should also be used with anything
+ * that may change.
+ */
+static uint64_t host_page_size;
+static uint64_t guest_page_size;
+static uint64_t guest_num_pages;
+static uint64_t iteration;
+static uint64_t nr_writes;
+static bool vcpu_stop;
+
+/*
+ * Guest physical memory offset of the testing memory slot.
+ * This will be set to the topmost valid physical address minus
+ * the test memory size.
+ */
+static uint64_t guest_test_phys_mem;
+
+/*
+ * Guest virtual memory offset of the testing memory slot.
+ * Must not conflict with identity mapped test code.
+ */
+static uint64_t guest_test_virt_mem = DEFAULT_GUEST_TEST_MEM;
+
+/*
+ * Continuously write to the first 8 bytes of a random pages within
+ * the testing memory region.
+ */
+static void guest_code(void)
+{
+	uint64_t addr;
+
+#ifdef __s390x__
+	uint64_t i;
+
+	/*
+	 * On s390x, all pages of a 1M segment are initially marked as dirty
+	 * when a page of the segment is written to for the very first time.
+	 * To compensate this specialty in this test, we need to touch all
+	 * pages during the first iteration.
+	 */
+	for (i = 0; i < guest_num_pages; i++) {
+		addr = guest_test_virt_mem + i * guest_page_size;
+		vcpu_arch_put_guest(*(uint64_t *)addr, READ_ONCE(iteration));
+		nr_writes++;
+	}
+#endif
+
+	while (true) {
+		while (!READ_ONCE(vcpu_stop)) {
+			addr = guest_test_virt_mem;
+			addr += (guest_random_u64(&guest_rng) % guest_num_pages)
+				* guest_page_size;
+			addr = align_down(addr, host_page_size);
+
+			vcpu_arch_put_guest(*(uint64_t *)addr, READ_ONCE(iteration));
+			nr_writes++;
+		}
+
+		GUEST_SYNC(1);
+	}
+}
+
+/* Host variables */
+static bool host_quit;
+
+/* Points to the test VM memory region on which we track dirty logs */
+static void *host_test_mem;
+static uint64_t host_num_pages;
+
+/* For statistics only */
+static uint64_t host_dirty_count;
+static uint64_t host_clear_count;
+
+/* Whether dirty ring reset is requested, or finished */
+static sem_t sem_vcpu_stop;
+static sem_t sem_vcpu_cont;
+
+/*
+ * This is updated by the vcpu thread to tell the host whether it's a
+ * ring-full event.  It should only be read until a sem_wait() of
+ * sem_vcpu_stop and before vcpu continues to run.
+ */
+static bool dirty_ring_vcpu_ring_full;
+
+/*
+ * This is only used for verifying the dirty pages.  Dirty ring has a very
+ * tricky case when the ring just got full, kvm will do userspace exit due to
+ * ring full.  When that happens, the very last PFN is set but actually the
+ * data is not changed (the guest WRITE is not really applied yet), because
+ * we found that the dirty ring is full, refused to continue the vcpu, and
+ * recorded the dirty gfn with the old contents.
+ *
+ * For this specific case, it's safe to skip checking this pfn for this
+ * bit, because it's a redundant bit, and when the write happens later the bit
+ * will be set again.  We use this variable to always keep track of the latest
+ * dirty gfn we've collected, so that if a mismatch of data found later in the
+ * verifying process, we let it pass.
+ */
+static uint64_t dirty_ring_last_page = -1ULL;
+
+/*
+ * In addition to the above, it is possible (especially if this
+ * test is run nested) for the above scenario to repeat multiple times:
+ *
+ * The following can happen:
+ *
+ * - L1 vCPU:        Memory write is logged to PML but not committed.
+ *
+ * - L1 test thread: Ignores the write because its last dirty ring entry
+ *                   Resets the dirty ring which:
+ *                     - Resets the A/D bits in EPT
+ *                     - Issues tlb flush (invept), which is intercepted by L0
+ *
+ * - L0: frees the whole nested ept mmu root as the response to invept,
+ *       and thus ensures that when memory write is retried, it will fault again
+ *
+ * - L1 vCPU:        Same memory write is logged to the PML but not committed again.
+ *
+ * - L1 test thread: Ignores the write because its last dirty ring entry (again)
+ *                   Resets the dirty ring which:
+ *                     - Resets the A/D bits in EPT (again)
+ *                     - Issues tlb flush (again) which is intercepted by L0
+ *
+ * ...
+ *
+ * N times
+ *
+ * - L1 vCPU:        Memory write is logged in the PML and then committed.
+ *                   Lots of other memory writes are logged and committed.
+ * ...
+ *
+ * - L1 test thread: Sees the memory write along with other memory writes
+ *                   in the dirty ring, and since the write is usually not
+ *                   the last entry in the dirty-ring and has a very outdated
+ *                   iteration, the test fails.
+ *
+ *
+ * Note that this is only possible when the write was the last log entry
+ * write during iteration N-1, thus remember last iteration last log entry
+ * and also don't fail when it is reported in the next iteration, together with
+ * an outdated iteration count.
+ */
+static uint64_t dirty_ring_prev_iteration_last_page;
+
+enum log_mode_t {
+	/* Only use KVM_GET_DIRTY_LOG for logging */
+	LOG_MODE_DIRTY_LOG = 0,
+
+	/* Use both KVM_[GET|CLEAR]_DIRTY_LOG for logging */
+	LOG_MODE_CLEAR_LOG = 1,
+
+	/* Use dirty ring for logging */
+	LOG_MODE_DIRTY_RING = 2,
+
+	LOG_MODE_NUM,
+
+	/* Run all supported modes */
+	LOG_MODE_ALL = LOG_MODE_NUM,
+};
+
+/* Mode of logging to test.  Default is to run all supported modes */
+static enum log_mode_t host_log_mode_option = LOG_MODE_ALL;
+/* Logging mode for current run */
+static enum log_mode_t host_log_mode;
+static pthread_t vcpu_thread;
+static uint32_t test_dirty_ring_count = TEST_DIRTY_RING_COUNT;
+
+static bool clear_log_supported(void)
+{
+	return kvm_has_cap(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2);
+}
+
+static void clear_log_create_vm_done(struct kvm_vm *vm)
+{
+	u64 manual_caps;
+
+	manual_caps = kvm_check_cap(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2);
+	TEST_ASSERT(manual_caps, "MANUAL_CAPS is zero!");
+	manual_caps &= (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE |
+			KVM_DIRTY_LOG_INITIALLY_SET);
+	vm_enable_cap(vm, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2, manual_caps);
+}
+
+static void dirty_log_collect_dirty_pages(struct kvm_vcpu *vcpu, int slot,
+					  void *bitmap, uint32_t num_pages,
+					  uint32_t *unused)
+{
+	kvm_vm_get_dirty_log(vcpu->vm, slot, bitmap);
+}
+
+static void clear_log_collect_dirty_pages(struct kvm_vcpu *vcpu, int slot,
+					  void *bitmap, uint32_t num_pages,
+					  uint32_t *unused)
+{
+	kvm_vm_get_dirty_log(vcpu->vm, slot, bitmap);
+	kvm_vm_clear_dirty_log(vcpu->vm, slot, bitmap, 0, num_pages);
+}
+
+/* Should only be called after a GUEST_SYNC */
+static void vcpu_handle_sync_stop(void)
+{
+	if (READ_ONCE(vcpu_stop)) {
+		sem_post(&sem_vcpu_stop);
+		sem_wait(&sem_vcpu_cont);
+	}
+}
+
+static void default_after_vcpu_run(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	TEST_ASSERT(get_ucall(vcpu, NULL) == UCALL_SYNC,
+		    "Invalid guest sync status: exit_reason=%s",
+		    exit_reason_str(run->exit_reason));
+
+	vcpu_handle_sync_stop();
+}
+
+static bool dirty_ring_supported(void)
+{
+	return (kvm_has_cap(KVM_CAP_DIRTY_LOG_RING) ||
+		kvm_has_cap(KVM_CAP_DIRTY_LOG_RING_ACQ_REL));
+}
+
+static void dirty_ring_create_vm_done(struct kvm_vm *vm)
+{
+	uint64_t pages;
+	uint32_t limit;
+
+	/*
+	 * We rely on vcpu exit due to full dirty ring state. Adjust
+	 * the ring buffer size to ensure we're able to reach the
+	 * full dirty ring state.
+	 */
+	pages = (1ul << (DIRTY_MEM_BITS - vm->page_shift)) + 3;
+	pages = vm_adjust_num_guest_pages(vm->mode, pages);
+	if (vm->page_size < getpagesize())
+		pages = vm_num_host_pages(vm->mode, pages);
+
+	limit = 1 << (31 - __builtin_clz(pages));
+	test_dirty_ring_count = 1 << (31 - __builtin_clz(test_dirty_ring_count));
+	test_dirty_ring_count = min(limit, test_dirty_ring_count);
+	pr_info("dirty ring count: 0x%x\n", test_dirty_ring_count);
+
+	/*
+	 * Switch to dirty ring mode after VM creation but before any
+	 * of the vcpu creation.
+	 */
+	vm_enable_dirty_ring(vm, test_dirty_ring_count *
+			     sizeof(struct kvm_dirty_gfn));
+}
+
+static inline bool dirty_gfn_is_dirtied(struct kvm_dirty_gfn *gfn)
+{
+	return smp_load_acquire(&gfn->flags) == KVM_DIRTY_GFN_F_DIRTY;
+}
+
+static inline void dirty_gfn_set_collected(struct kvm_dirty_gfn *gfn)
+{
+	smp_store_release(&gfn->flags, KVM_DIRTY_GFN_F_RESET);
+}
+
+static uint32_t dirty_ring_collect_one(struct kvm_dirty_gfn *dirty_gfns,
+				       int slot, void *bitmap,
+				       uint32_t num_pages, uint32_t *fetch_index)
+{
+	struct kvm_dirty_gfn *cur;
+	uint32_t count = 0;
+
+	while (true) {
+		cur = &dirty_gfns[*fetch_index % test_dirty_ring_count];
+		if (!dirty_gfn_is_dirtied(cur))
+			break;
+		TEST_ASSERT(cur->slot == slot, "Slot number didn't match: "
+			    "%u != %u", cur->slot, slot);
+		TEST_ASSERT(cur->offset < num_pages, "Offset overflow: "
+			    "0x%llx >= 0x%x", cur->offset, num_pages);
+		__set_bit_le(cur->offset, bitmap);
+		dirty_ring_last_page = cur->offset;
+		dirty_gfn_set_collected(cur);
+		(*fetch_index)++;
+		count++;
+	}
+
+	return count;
+}
+
+static void dirty_ring_collect_dirty_pages(struct kvm_vcpu *vcpu, int slot,
+					   void *bitmap, uint32_t num_pages,
+					   uint32_t *ring_buf_idx)
+{
+	uint32_t count, cleared;
+
+	/* Only have one vcpu */
+	count = dirty_ring_collect_one(vcpu_map_dirty_ring(vcpu),
+				       slot, bitmap, num_pages,
+				       ring_buf_idx);
+
+	cleared = kvm_vm_reset_dirty_ring(vcpu->vm);
+
+	/*
+	 * Cleared pages should be the same as collected, as KVM is supposed to
+	 * clear only the entries that have been harvested.
+	 */
+	TEST_ASSERT(cleared == count, "Reset dirty pages (%u) mismatch "
+		    "with collected (%u)", cleared, count);
+}
+
+static void dirty_ring_after_vcpu_run(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	/* A ucall-sync or ring-full event is allowed */
+	if (get_ucall(vcpu, NULL) == UCALL_SYNC) {
+		vcpu_handle_sync_stop();
+	} else if (run->exit_reason == KVM_EXIT_DIRTY_RING_FULL) {
+		WRITE_ONCE(dirty_ring_vcpu_ring_full, true);
+		vcpu_handle_sync_stop();
+	} else {
+		TEST_ASSERT(false, "Invalid guest sync status: "
+			    "exit_reason=%s",
+			    exit_reason_str(run->exit_reason));
+	}
+}
+
+struct log_mode {
+	const char *name;
+	/* Return true if this mode is supported, otherwise false */
+	bool (*supported)(void);
+	/* Hook when the vm creation is done (before vcpu creation) */
+	void (*create_vm_done)(struct kvm_vm *vm);
+	/* Hook to collect the dirty pages into the bitmap provided */
+	void (*collect_dirty_pages) (struct kvm_vcpu *vcpu, int slot,
+				     void *bitmap, uint32_t num_pages,
+				     uint32_t *ring_buf_idx);
+	/* Hook to call when after each vcpu run */
+	void (*after_vcpu_run)(struct kvm_vcpu *vcpu);
+} log_modes[LOG_MODE_NUM] = {
+	{
+		.name = "dirty-log",
+		.collect_dirty_pages = dirty_log_collect_dirty_pages,
+		.after_vcpu_run = default_after_vcpu_run,
+	},
+	{
+		.name = "clear-log",
+		.supported = clear_log_supported,
+		.create_vm_done = clear_log_create_vm_done,
+		.collect_dirty_pages = clear_log_collect_dirty_pages,
+		.after_vcpu_run = default_after_vcpu_run,
+	},
+	{
+		.name = "dirty-ring",
+		.supported = dirty_ring_supported,
+		.create_vm_done = dirty_ring_create_vm_done,
+		.collect_dirty_pages = dirty_ring_collect_dirty_pages,
+		.after_vcpu_run = dirty_ring_after_vcpu_run,
+	},
+};
+
+static void log_modes_dump(void)
+{
+	int i;
+
+	printf("all");
+	for (i = 0; i < LOG_MODE_NUM; i++)
+		printf(", %s", log_modes[i].name);
+	printf("\n");
+}
+
+static bool log_mode_supported(void)
+{
+	struct log_mode *mode = &log_modes[host_log_mode];
+
+	if (mode->supported)
+		return mode->supported();
+
+	return true;
+}
+
+static void log_mode_create_vm_done(struct kvm_vm *vm)
+{
+	struct log_mode *mode = &log_modes[host_log_mode];
+
+	if (mode->create_vm_done)
+		mode->create_vm_done(vm);
+}
+
+static void log_mode_collect_dirty_pages(struct kvm_vcpu *vcpu, int slot,
+					 void *bitmap, uint32_t num_pages,
+					 uint32_t *ring_buf_idx)
+{
+	struct log_mode *mode = &log_modes[host_log_mode];
+
+	TEST_ASSERT(mode->collect_dirty_pages != NULL,
+		    "collect_dirty_pages() is required for any log mode!");
+	mode->collect_dirty_pages(vcpu, slot, bitmap, num_pages, ring_buf_idx);
+}
+
+static void log_mode_after_vcpu_run(struct kvm_vcpu *vcpu)
+{
+	struct log_mode *mode = &log_modes[host_log_mode];
+
+	if (mode->after_vcpu_run)
+		mode->after_vcpu_run(vcpu);
+}
+
+static void *vcpu_worker(void *data)
+{
+	struct kvm_vcpu *vcpu = data;
+
+	sem_wait(&sem_vcpu_cont);
+
+	while (!READ_ONCE(host_quit)) {
+		/* Let the guest dirty the random pages */
+		vcpu_run(vcpu);
+		log_mode_after_vcpu_run(vcpu);
+	}
+
+	return NULL;
+}
+
+static void vm_dirty_log_verify(enum vm_guest_mode mode, unsigned long **bmap)
+{
+	uint64_t page, nr_dirty_pages = 0, nr_clean_pages = 0;
+	uint64_t step = vm_num_host_pages(mode, 1);
+
+	for (page = 0; page < host_num_pages; page += step) {
+		uint64_t val = *(uint64_t *)(host_test_mem + page * host_page_size);
+		bool bmap0_dirty = __test_and_clear_bit_le(page, bmap[0]);
+
+		/*
+		 * Ensure both bitmaps are cleared, as a page can be written
+		 * multiple times per iteration, i.e. can show up in both
+		 * bitmaps, and the dirty ring is additive, i.e. doesn't purge
+		 * bitmap entries from previous collections.
+		 */
+		if (__test_and_clear_bit_le(page, bmap[1]) || bmap0_dirty) {
+			nr_dirty_pages++;
+
+			/*
+			 * If the page is dirty, the value written to memory
+			 * should be the current iteration number.
+			 */
+			if (val == iteration)
+				continue;
+
+			if (host_log_mode == LOG_MODE_DIRTY_RING) {
+				/*
+				 * The last page in the ring from previous
+				 * iteration can be written with the value
+				 * from the previous iteration, as the value to
+				 * be written may be cached in a CPU register.
+				 */
+				if (page == dirty_ring_prev_iteration_last_page &&
+				    val == iteration - 1)
+					continue;
+
+				/*
+				 * Any value from a previous iteration is legal
+				 * for the last entry, as the write may not yet
+				 * have retired, i.e. the page may hold whatever
+				 * it had before this iteration started.
+				 */
+				if (page == dirty_ring_last_page &&
+				    val < iteration)
+					continue;
+			} else if (!val && iteration == 1 && bmap0_dirty) {
+				/*
+				 * When testing get+clear, the dirty bitmap
+				 * starts with all bits set, and so the first
+				 * iteration can observe a "dirty" page that
+				 * was never written, but only in the first
+				 * bitmap (collecting the bitmap also clears
+				 * all dirty pages).
+				 */
+				continue;
+			}
+
+			TEST_FAIL("Dirty page %lu value (%lu) != iteration (%lu) "
+				  "(last = %lu, prev_last = %lu)",
+				  page, val, iteration, dirty_ring_last_page,
+				  dirty_ring_prev_iteration_last_page);
+		} else {
+			nr_clean_pages++;
+			/*
+			 * If cleared, the value written can be any
+			 * value smaller than the iteration number.
+			 */
+			TEST_ASSERT(val < iteration,
+				    "Clear page %lu value (%lu) >= iteration (%lu) "
+				    "(last = %lu, prev_last = %lu)",
+				    page, val, iteration, dirty_ring_last_page,
+				    dirty_ring_prev_iteration_last_page);
+		}
+	}
+
+	pr_info("Iteration %2ld: dirty: %-6lu clean: %-6lu writes: %-6lu\n",
+		iteration, nr_dirty_pages, nr_clean_pages, nr_writes);
+
+	host_dirty_count += nr_dirty_pages;
+	host_clear_count += nr_clean_pages;
+}
+
+static struct kvm_vm *create_vm(enum vm_guest_mode mode, struct kvm_vcpu **vcpu,
+				uint64_t extra_mem_pages, void *guest_code)
+{
+	struct kvm_vm *vm;
+
+	pr_info("Testing guest mode: %s\n", vm_guest_mode_string(mode));
+
+	vm = __vm_create(VM_SHAPE(mode), 1, extra_mem_pages);
+
+	log_mode_create_vm_done(vm);
+	*vcpu = vm_vcpu_add(vm, 0, guest_code);
+	kvm_arch_vm_finalize_vcpus(vm);
+	return vm;
+}
+
+struct test_params {
+	unsigned long iterations;
+	unsigned long interval;
+	uint64_t phys_offset;
+};
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct test_params *p = arg;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	unsigned long *bmap[2];
+	uint32_t ring_buf_idx = 0;
+	int sem_val;
+
+	if (!log_mode_supported()) {
+		print_skip("Log mode '%s' not supported",
+			   log_modes[host_log_mode].name);
+		return;
+	}
+
+	/*
+	 * We reserve page table for 2 times of extra dirty mem which
+	 * will definitely cover the original (1G+) test range.  Here
+	 * we do the calculation with 4K page size which is the
+	 * smallest so the page number will be enough for all archs
+	 * (e.g., 64K page size guest will need even less memory for
+	 * page tables).
+	 */
+	vm = create_vm(mode, &vcpu,
+		       2ul << (DIRTY_MEM_BITS - PAGE_SHIFT_4K), guest_code);
+
+	guest_page_size = vm->page_size;
+	/*
+	 * A little more than 1G of guest page sized pages.  Cover the
+	 * case where the size is not aligned to 64 pages.
+	 */
+	guest_num_pages = (1ul << (DIRTY_MEM_BITS - vm->page_shift)) + 3;
+	guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
+
+	host_page_size = getpagesize();
+	host_num_pages = vm_num_host_pages(mode, guest_num_pages);
+
+	if (!p->phys_offset) {
+		guest_test_phys_mem = (vm->max_gfn - guest_num_pages) *
+				      guest_page_size;
+		guest_test_phys_mem = align_down(guest_test_phys_mem, host_page_size);
+	} else {
+		guest_test_phys_mem = p->phys_offset;
+	}
+
+#ifdef __s390x__
+	/* Align to 1M (segment size) */
+	guest_test_phys_mem = align_down(guest_test_phys_mem, 1 << 20);
+
+	/*
+	 * The workaround in guest_code() to write all pages prior to the first
+	 * iteration isn't compatible with the dirty ring, as the dirty ring
+	 * support relies on the vCPU to actually stop when vcpu_stop is set so
+	 * that the vCPU doesn't hang waiting for the dirty ring to be emptied.
+	 */
+	TEST_ASSERT(host_log_mode != LOG_MODE_DIRTY_RING,
+		    "Test needs to be updated to support s390 dirty ring");
+#endif
+
+	pr_info("guest physical test memory offset: 0x%lx\n", guest_test_phys_mem);
+
+	bmap[0] = bitmap_zalloc(host_num_pages);
+	bmap[1] = bitmap_zalloc(host_num_pages);
+
+	/* Add an extra memory slot for testing dirty logging */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    guest_test_phys_mem,
+				    TEST_MEM_SLOT_INDEX,
+				    guest_num_pages,
+				    KVM_MEM_LOG_DIRTY_PAGES);
+
+	/* Do mapping for the dirty track memory slot */
+	virt_map(vm, guest_test_virt_mem, guest_test_phys_mem, guest_num_pages);
+
+	/* Cache the HVA pointer of the region */
+	host_test_mem = addr_gpa2hva(vm, (vm_paddr_t)guest_test_phys_mem);
+
+	/* Export the shared variables to the guest */
+	sync_global_to_guest(vm, host_page_size);
+	sync_global_to_guest(vm, guest_page_size);
+	sync_global_to_guest(vm, guest_test_virt_mem);
+	sync_global_to_guest(vm, guest_num_pages);
+
+	host_dirty_count = 0;
+	host_clear_count = 0;
+	WRITE_ONCE(host_quit, false);
+
+	/*
+	 * Ensure the previous iteration didn't leave a dangling semaphore, i.e.
+	 * that the main task and vCPU worker were synchronized and completed
+	 * verification of all iterations.
+	 */
+	sem_getvalue(&sem_vcpu_stop, &sem_val);
+	TEST_ASSERT_EQ(sem_val, 0);
+	sem_getvalue(&sem_vcpu_cont, &sem_val);
+	TEST_ASSERT_EQ(sem_val, 0);
+
+	TEST_ASSERT_EQ(vcpu_stop, false);
+
+	pthread_create(&vcpu_thread, NULL, vcpu_worker, vcpu);
+
+	for (iteration = 1; iteration <= p->iterations; iteration++) {
+		unsigned long i;
+
+		sync_global_to_guest(vm, iteration);
+
+		WRITE_ONCE(nr_writes, 0);
+		sync_global_to_guest(vm, nr_writes);
+
+		dirty_ring_prev_iteration_last_page = dirty_ring_last_page;
+		WRITE_ONCE(dirty_ring_vcpu_ring_full, false);
+
+		sem_post(&sem_vcpu_cont);
+
+		/*
+		 * Let the vCPU run beyond the configured interval until it has
+		 * performed the minimum number of writes.  This verifies the
+		 * guest is making forward progress, e.g. isn't stuck because
+		 * of a KVM bug, and puts a firm floor on test coverage.
+		 */
+		for (i = 0; i < p->interval || nr_writes < TEST_MIN_WRITES_PER_ITERATION; i++) {
+			/*
+			 * Sleep in 1ms chunks to keep the interval math simple
+			 * and so that the test doesn't run too far beyond the
+			 * specified interval.
+			 */
+			usleep(1000);
+
+			sync_global_from_guest(vm, nr_writes);
+
+			/*
+			 * Reap dirty pages while the guest is running so that
+			 * dirty ring full events are resolved, i.e. so that a
+			 * larger interval doesn't always end up with a vCPU
+			 * that's effectively blocked.  Collecting while the
+			 * guest is running also verifies KVM doesn't lose any
+			 * state.
+			 *
+			 * For bitmap modes, KVM overwrites the entire bitmap,
+			 * i.e. collecting the bitmaps is destructive.  Collect
+			 * the bitmap only on the first pass, otherwise this
+			 * test would lose track of dirty pages.
+			 */
+			if (i && host_log_mode != LOG_MODE_DIRTY_RING)
+				continue;
+
+			/*
+			 * For the dirty ring, empty the ring on subsequent
+			 * passes only if the ring was filled at least once,
+			 * to verify KVM's handling of a full ring (emptying
+			 * the ring on every pass would make it unlikely the
+			 * vCPU would ever fill the fing).
+			 */
+			if (i && !READ_ONCE(dirty_ring_vcpu_ring_full))
+				continue;
+
+			log_mode_collect_dirty_pages(vcpu, TEST_MEM_SLOT_INDEX,
+						     bmap[0], host_num_pages,
+						     &ring_buf_idx);
+		}
+
+		/*
+		 * Stop the vCPU prior to collecting and verifying the dirty
+		 * log.  If the vCPU is allowed to run during collection, then
+		 * pages that are written during this iteration may be missed,
+		 * i.e. collected in the next iteration.  And if the vCPU is
+		 * writing memory during verification, pages that this thread
+		 * sees as clean may be written with this iteration's value.
+		 */
+		WRITE_ONCE(vcpu_stop, true);
+		sync_global_to_guest(vm, vcpu_stop);
+		sem_wait(&sem_vcpu_stop);
+
+		/*
+		 * Clear vcpu_stop after the vCPU thread has acknowledge the
+		 * stop request and is waiting, i.e. is definitely not running!
+		 */
+		WRITE_ONCE(vcpu_stop, false);
+		sync_global_to_guest(vm, vcpu_stop);
+
+		/*
+		 * Sync the number of writes performed before verification, the
+		 * info will be printed along with the dirty/clean page counts.
+		 */
+		sync_global_from_guest(vm, nr_writes);
+
+		/*
+		 * NOTE: for dirty ring, it's possible that we didn't stop at
+		 * GUEST_SYNC but instead we stopped because ring is full;
+		 * that's okay too because ring full means we're only missing
+		 * the flush of the last page, and since we handle the last
+		 * page specially verification will succeed anyway.
+		 */
+		log_mode_collect_dirty_pages(vcpu, TEST_MEM_SLOT_INDEX,
+					     bmap[1], host_num_pages,
+					     &ring_buf_idx);
+		vm_dirty_log_verify(mode, bmap);
+	}
+
+	WRITE_ONCE(host_quit, true);
+	sem_post(&sem_vcpu_cont);
+
+	pthread_join(vcpu_thread, NULL);
+
+	pr_info("Total bits checked: dirty (%lu), clear (%lu)\n",
+		host_dirty_count, host_clear_count);
+
+	free(bmap[0]);
+	free(bmap[1]);
+	kvm_vm_free(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-i iterations] [-I interval] "
+	       "[-p offset] [-m mode]\n", name);
+	puts("");
+	printf(" -c: hint to dirty ring size, in number of entries\n");
+	printf("     (only useful for dirty-ring test; default: %"PRIu32")\n",
+	       TEST_DIRTY_RING_COUNT);
+	printf(" -i: specify iteration counts (default: %"PRIu64")\n",
+	       TEST_HOST_LOOP_N);
+	printf(" -I: specify interval in ms (default: %"PRIu64" ms)\n",
+	       TEST_HOST_LOOP_INTERVAL);
+	printf(" -p: specify guest physical test memory offset\n"
+	       "     Warning: a low offset can conflict with the loaded test code.\n");
+	printf(" -M: specify the host logging mode "
+	       "(default: run all log modes).  Supported modes: \n\t");
+	log_modes_dump();
+	guest_modes_help();
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct test_params p = {
+		.iterations = TEST_HOST_LOOP_N,
+		.interval = TEST_HOST_LOOP_INTERVAL,
+	};
+	int opt, i;
+
+	sem_init(&sem_vcpu_stop, 0, 0);
+	sem_init(&sem_vcpu_cont, 0, 0);
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "c:hi:I:p:m:M:")) != -1) {
+		switch (opt) {
+		case 'c':
+			test_dirty_ring_count = strtol(optarg, NULL, 10);
+			break;
+		case 'i':
+			p.iterations = strtol(optarg, NULL, 10);
+			break;
+		case 'I':
+			p.interval = strtol(optarg, NULL, 10);
+			break;
+		case 'p':
+			p.phys_offset = strtoull(optarg, NULL, 0);
+			break;
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'M':
+			if (!strcmp(optarg, "all")) {
+				host_log_mode_option = LOG_MODE_ALL;
+				break;
+			}
+			for (i = 0; i < LOG_MODE_NUM; i++) {
+				if (!strcmp(optarg, log_modes[i].name)) {
+					pr_info("Setting log mode to: '%s'\n",
+						optarg);
+					host_log_mode_option = i;
+					break;
+				}
+			}
+			if (i == LOG_MODE_NUM) {
+				printf("Log mode '%s' invalid. Please choose "
+				       "from: ", optarg);
+				log_modes_dump();
+				exit(1);
+			}
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	TEST_ASSERT(p.iterations > 0, "Iterations must be greater than zero");
+	TEST_ASSERT(p.interval > 0, "Interval must be greater than zero");
+
+	pr_info("Test iterations: %"PRIu64", interval: %"PRIu64" (ms)\n",
+		p.iterations, p.interval);
+
+	if (host_log_mode_option == LOG_MODE_ALL) {
+		/* Run each log mode */
+		for (i = 0; i < LOG_MODE_NUM; i++) {
+			pr_info("Testing Log Mode '%s'\n", log_modes[i].name);
+			host_log_mode = i;
+			for_each_guest_mode(run_test, &p);
+		}
+	} else {
+		host_log_mode = host_log_mode_option;
+		for_each_guest_mode(run_test, &p);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/get-reg-list.c b/tools/testing/selftests/kvm/get-reg-list.c
new file mode 100644
index 000000000000..f4644c9d2d3b
--- /dev/null
+++ b/tools/testing/selftests/kvm/get-reg-list.c
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check for KVM_GET_REG_LIST regressions.
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ *
+ * When attempting to migrate from a host with an older kernel to a host
+ * with a newer kernel we allow the newer kernel on the destination to
+ * list new registers with get-reg-list. We assume they'll be unused, at
+ * least until the guest reboots, and so they're relatively harmless.
+ * However, if the destination host with the newer kernel is missing
+ * registers which the source host with the older kernel has, then that's
+ * a regression in get-reg-list. This test checks for that regression by
+ * checking the current list against a blessed list. We should never have
+ * missing registers, but if new ones appear then they can probably be
+ * added to the blessed list. A completely new blessed list can be created
+ * by running the test with the --list command line argument.
+ *
+ * The blessed list should be created from the oldest possible kernel.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "kvm_util.h"
+#include "test_util.h"
+#include "processor.h"
+
+static struct kvm_reg_list *reg_list;
+static __u64 *blessed_reg, blessed_n;
+
+extern struct vcpu_reg_list *vcpu_configs[];
+extern int vcpu_configs_n;
+
+#define for_each_reg(i)								\
+	for ((i) = 0; (i) < reg_list->n; ++(i))
+
+#define for_each_reg_filtered(i)						\
+	for_each_reg(i)								\
+		if (!filter_reg(reg_list->reg[i]))
+
+#define for_each_missing_reg(i)							\
+	for ((i) = 0; (i) < blessed_n; ++(i))					\
+		if (!find_reg(reg_list->reg, reg_list->n, blessed_reg[i]))	\
+			if (check_supported_reg(vcpu, blessed_reg[i]))
+
+#define for_each_new_reg(i)							\
+	for_each_reg_filtered(i)						\
+		if (!find_reg(blessed_reg, blessed_n, reg_list->reg[i]))
+
+#define for_each_present_blessed_reg(i)						\
+	for_each_reg(i)								\
+		if (find_reg(blessed_reg, blessed_n, reg_list->reg[i]))
+
+static const char *config_name(struct vcpu_reg_list *c)
+{
+	struct vcpu_reg_sublist *s;
+	int len = 0;
+
+	if (c->name)
+		return c->name;
+
+	for_each_sublist(c, s)
+		len += strlen(s->name) + 1;
+
+	c->name = malloc(len);
+
+	len = 0;
+	for_each_sublist(c, s) {
+		if (!strcmp(s->name, "base"))
+			continue;
+		if (len)
+			c->name[len++] = '+';
+		strcpy(c->name + len, s->name);
+		len += strlen(s->name);
+	}
+	c->name[len] = '\0';
+
+	return c->name;
+}
+
+bool __weak check_supported_reg(struct kvm_vcpu *vcpu, __u64 reg)
+{
+	return true;
+}
+
+bool __weak filter_reg(__u64 reg)
+{
+	return false;
+}
+
+static bool find_reg(__u64 regs[], __u64 nr_regs, __u64 reg)
+{
+	int i;
+
+	for (i = 0; i < nr_regs; ++i)
+		if (reg == regs[i])
+			return true;
+	return false;
+}
+
+void __weak print_reg(const char *prefix, __u64 id)
+{
+	printf("\t0x%llx,\n", id);
+}
+
+bool __weak check_reject_set(int err)
+{
+	return true;
+}
+
+void __weak finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
+{
+}
+
+#ifdef __aarch64__
+static void prepare_vcpu_init(struct kvm_vm *vm, struct vcpu_reg_list *c,
+			      struct kvm_vcpu_init *init)
+{
+	struct vcpu_reg_sublist *s;
+
+	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, init);
+
+	for_each_sublist(c, s)
+		if (s->capability)
+			init->features[s->feature / 32] |= 1 << (s->feature % 32);
+}
+
+static struct kvm_vcpu *vcpu_config_get_vcpu(struct vcpu_reg_list *c, struct kvm_vm *vm)
+{
+	struct kvm_vcpu_init init;
+	struct kvm_vcpu *vcpu;
+
+	prepare_vcpu_init(vm, c, &init);
+	vcpu = __vm_vcpu_add(vm, 0);
+	aarch64_vcpu_setup(vcpu, &init);
+
+	return vcpu;
+}
+#else
+static struct kvm_vcpu *vcpu_config_get_vcpu(struct vcpu_reg_list *c, struct kvm_vm *vm)
+{
+	return __vm_vcpu_add(vm, 0);
+}
+#endif
+
+static void check_supported(struct vcpu_reg_list *c)
+{
+	struct vcpu_reg_sublist *s;
+
+	for_each_sublist(c, s) {
+		if (!s->capability)
+			continue;
+
+		__TEST_REQUIRE(kvm_has_cap(s->capability),
+			       "%s: %s not available, skipping tests",
+			       config_name(c), s->name);
+	}
+}
+
+static bool print_list;
+static bool print_filtered;
+
+static void run_test(struct vcpu_reg_list *c)
+{
+	int new_regs = 0, missing_regs = 0, i, n;
+	int failed_get = 0, failed_set = 0, failed_reject = 0;
+	int skipped_set = 0;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct vcpu_reg_sublist *s;
+
+	check_supported(c);
+
+	vm = vm_create_barebones();
+	vcpu = vcpu_config_get_vcpu(c, vm);
+	finalize_vcpu(vcpu, c);
+
+	reg_list = vcpu_get_reg_list(vcpu);
+
+	if (print_list || print_filtered) {
+		putchar('\n');
+		for_each_reg(i) {
+			__u64 id = reg_list->reg[i];
+			if ((print_list && !filter_reg(id)) ||
+			    (print_filtered && filter_reg(id)))
+				print_reg(config_name(c), id);
+		}
+		putchar('\n');
+		return;
+	}
+
+	for_each_sublist(c, s)
+		blessed_n += s->regs_n;
+	blessed_reg = calloc(blessed_n, sizeof(__u64));
+
+	n = 0;
+	for_each_sublist(c, s) {
+		for (i = 0; i < s->regs_n; ++i)
+			blessed_reg[n++] = s->regs[i];
+	}
+
+	/*
+	 * We only test that we can get the register and then write back the
+	 * same value. Some registers may allow other values to be written
+	 * back, but others only allow some bits to be changed, and at least
+	 * for ID registers set will fail if the value does not exactly match
+	 * what was returned by get. If registers that allow other values to
+	 * be written need to have the other values tested, then we should
+	 * create a new set of tests for those in a new independent test
+	 * executable.
+	 *
+	 * Only do the get/set tests on present, blessed list registers,
+	 * since we don't know the capabilities of any new registers.
+	 */
+	for_each_present_blessed_reg(i) {
+		uint8_t addr[2048 / 8];
+		struct kvm_one_reg reg = {
+			.id = reg_list->reg[i],
+			.addr = (__u64)&addr,
+		};
+		bool reject_reg = false, skip_reg = false;
+		int ret;
+
+		ret = __vcpu_get_reg(vcpu, reg_list->reg[i], &addr);
+		if (ret) {
+			printf("%s: Failed to get ", config_name(c));
+			print_reg(config_name(c), reg.id);
+			putchar('\n');
+			++failed_get;
+		}
+
+		for_each_sublist(c, s) {
+			/* rejects_set registers are rejected for set operation */
+			if (s->rejects_set && find_reg(s->rejects_set, s->rejects_set_n, reg.id)) {
+				reject_reg = true;
+				ret = __vcpu_ioctl(vcpu, KVM_SET_ONE_REG, &reg);
+				if (ret != -1 || !check_reject_set(errno)) {
+					printf("%s: Failed to reject (ret=%d, errno=%d) ", config_name(c), ret, errno);
+					print_reg(config_name(c), reg.id);
+					putchar('\n');
+					++failed_reject;
+				}
+				break;
+			}
+
+			/* skips_set registers are skipped for set operation */
+			if (s->skips_set && find_reg(s->skips_set, s->skips_set_n, reg.id)) {
+				skip_reg = true;
+				++skipped_set;
+				break;
+			}
+		}
+
+		if (!reject_reg && !skip_reg) {
+			ret = __vcpu_ioctl(vcpu, KVM_SET_ONE_REG, &reg);
+			if (ret) {
+				printf("%s: Failed to set ", config_name(c));
+				print_reg(config_name(c), reg.id);
+				putchar('\n');
+				++failed_set;
+			}
+		}
+	}
+
+	for_each_new_reg(i)
+		++new_regs;
+
+	for_each_missing_reg(i)
+		++missing_regs;
+
+	if (new_regs || missing_regs) {
+		n = 0;
+		for_each_reg_filtered(i)
+			++n;
+
+		printf("%s: Number blessed registers: %5lld\n", config_name(c), blessed_n);
+		printf("%s: Number registers:         %5lld (includes %lld filtered registers)\n",
+		       config_name(c), reg_list->n, reg_list->n - n);
+	}
+
+	if (new_regs) {
+		printf("\n%s: There are %d new registers.\n"
+		       "Consider adding them to the blessed reg "
+		       "list with the following lines:\n\n", config_name(c), new_regs);
+		for_each_new_reg(i)
+			print_reg(config_name(c), reg_list->reg[i]);
+		putchar('\n');
+	}
+
+	if (missing_regs) {
+		printf("\n%s: There are %d missing registers.\n"
+		       "The following lines are missing registers:\n\n", config_name(c), missing_regs);
+		for_each_missing_reg(i)
+			print_reg(config_name(c), blessed_reg[i]);
+		putchar('\n');
+	}
+
+	TEST_ASSERT(!missing_regs && !failed_get && !failed_set && !failed_reject,
+		    "%s: There are %d missing registers; %d registers failed get; "
+		    "%d registers failed set; %d registers failed reject; %d registers skipped set",
+		    config_name(c), missing_regs, failed_get, failed_set, failed_reject, skipped_set);
+
+	pr_info("%s: PASS\n", config_name(c));
+	blessed_n = 0;
+	free(blessed_reg);
+	free(reg_list);
+	kvm_vm_free(vm);
+}
+
+static void help(void)
+{
+	struct vcpu_reg_list *c;
+	int i;
+
+	printf(
+	"\n"
+	"usage: get-reg-list [--config=<selection>] [--list] [--list-filtered]\n\n"
+	" --config=<selection>        Used to select a specific vcpu configuration for the test/listing\n"
+	"                             '<selection>' may be\n");
+
+	for (i = 0; i < vcpu_configs_n; ++i) {
+		c = vcpu_configs[i];
+		printf(
+	"                               '%s'\n", config_name(c));
+	}
+
+	printf(
+	"\n"
+	" --list                      Print the register list rather than test it (requires --config)\n"
+	" --list-filtered             Print registers that would normally be filtered out (requires --config)\n"
+	"\n"
+	);
+}
+
+static struct vcpu_reg_list *parse_config(const char *config)
+{
+	struct vcpu_reg_list *c = NULL;
+	int i;
+
+	if (config[8] != '=')
+		help(), exit(1);
+
+	for (i = 0; i < vcpu_configs_n; ++i) {
+		c = vcpu_configs[i];
+		if (strcmp(config_name(c), &config[9]) == 0)
+			break;
+	}
+
+	if (i == vcpu_configs_n)
+		help(), exit(1);
+
+	return c;
+}
+
+int main(int ac, char **av)
+{
+	struct vcpu_reg_list *c, *sel = NULL;
+	int i, ret = 0;
+	pid_t pid;
+
+	for (i = 1; i < ac; ++i) {
+		if (strncmp(av[i], "--config", 8) == 0)
+			sel = parse_config(av[i]);
+		else if (strcmp(av[i], "--list") == 0)
+			print_list = true;
+		else if (strcmp(av[i], "--list-filtered") == 0)
+			print_filtered = true;
+		else if (strcmp(av[i], "--help") == 0 || strcmp(av[1], "-h") == 0)
+			help(), exit(0);
+		else
+			help(), exit(1);
+	}
+
+	if (print_list || print_filtered) {
+		/*
+		 * We only want to print the register list of a single config.
+		 */
+		if (!sel)
+			help(), exit(1);
+	}
+
+	for (i = 0; i < vcpu_configs_n; ++i) {
+		c = vcpu_configs[i];
+		if (sel && c != sel)
+			continue;
+
+		pid = fork();
+
+		if (!pid) {
+			run_test(c);
+			exit(0);
+		} else {
+			int wstatus;
+			pid_t wpid = wait(&wstatus);
+			TEST_ASSERT(wpid == pid && WIFEXITED(wstatus), "wait: Unexpected return");
+			if (WEXITSTATUS(wstatus) && WEXITSTATUS(wstatus) != KSFT_SKIP)
+				ret = KSFT_FAIL;
+		}
+	}
+
+	return ret;
+}
diff --git a/tools/testing/selftests/kvm/guest_memfd_test.c b/tools/testing/selftests/kvm/guest_memfd_test.c
new file mode 100644
index 000000000000..618c937f3c90
--- /dev/null
+++ b/tools/testing/selftests/kvm/guest_memfd_test.c
@@ -0,0 +1,492 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright Intel Corporation, 2023
+ *
+ * Author: Chao Peng <chao.p.peng@linux.intel.com>
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include <linux/bitmap.h>
+#include <linux/falloc.h>
+#include <linux/sizes.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "kvm_util.h"
+#include "numaif.h"
+#include "test_util.h"
+#include "ucall_common.h"
+
+static size_t page_size;
+
+static void test_file_read_write(int fd, size_t total_size)
+{
+	char buf[64];
+
+	TEST_ASSERT(read(fd, buf, sizeof(buf)) < 0,
+		    "read on a guest_mem fd should fail");
+	TEST_ASSERT(write(fd, buf, sizeof(buf)) < 0,
+		    "write on a guest_mem fd should fail");
+	TEST_ASSERT(pread(fd, buf, sizeof(buf), 0) < 0,
+		    "pread on a guest_mem fd should fail");
+	TEST_ASSERT(pwrite(fd, buf, sizeof(buf), 0) < 0,
+		    "pwrite on a guest_mem fd should fail");
+}
+
+static void test_mmap_cow(int fd, size_t size)
+{
+	void *mem;
+
+	mem = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	TEST_ASSERT(mem == MAP_FAILED, "Copy-on-write not allowed by guest_memfd.");
+}
+
+static void test_mmap_supported(int fd, size_t total_size)
+{
+	const char val = 0xaa;
+	char *mem;
+	size_t i;
+	int ret;
+
+	mem = kvm_mmap(total_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+
+	memset(mem, val, total_size);
+	for (i = 0; i < total_size; i++)
+		TEST_ASSERT_EQ(READ_ONCE(mem[i]), val);
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, 0,
+			page_size);
+	TEST_ASSERT(!ret, "fallocate the first page should succeed.");
+
+	for (i = 0; i < page_size; i++)
+		TEST_ASSERT_EQ(READ_ONCE(mem[i]), 0x00);
+	for (; i < total_size; i++)
+		TEST_ASSERT_EQ(READ_ONCE(mem[i]), val);
+
+	memset(mem, val, page_size);
+	for (i = 0; i < total_size; i++)
+		TEST_ASSERT_EQ(READ_ONCE(mem[i]), val);
+
+	kvm_munmap(mem, total_size);
+}
+
+static void test_mbind(int fd, size_t total_size)
+{
+	const unsigned long nodemask_0 = 1; /* nid: 0 */
+	unsigned long nodemask = 0;
+	unsigned long maxnode = 8;
+	int policy;
+	char *mem;
+	int ret;
+
+	if (!is_multi_numa_node_system())
+		return;
+
+	mem = kvm_mmap(total_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+
+	/* Test MPOL_INTERLEAVE policy */
+	kvm_mbind(mem, page_size * 2, MPOL_INTERLEAVE, &nodemask_0, maxnode, 0);
+	kvm_get_mempolicy(&policy, &nodemask, maxnode, mem, MPOL_F_ADDR);
+	TEST_ASSERT(policy == MPOL_INTERLEAVE && nodemask == nodemask_0,
+		    "Wanted MPOL_INTERLEAVE (%u) and nodemask 0x%lx, got %u and 0x%lx",
+		    MPOL_INTERLEAVE, nodemask_0, policy, nodemask);
+
+	/* Test basic MPOL_BIND policy */
+	kvm_mbind(mem + page_size * 2, page_size * 2, MPOL_BIND, &nodemask_0, maxnode, 0);
+	kvm_get_mempolicy(&policy, &nodemask, maxnode, mem + page_size * 2, MPOL_F_ADDR);
+	TEST_ASSERT(policy == MPOL_BIND && nodemask == nodemask_0,
+		    "Wanted MPOL_BIND (%u) and nodemask 0x%lx, got %u and 0x%lx",
+		    MPOL_BIND, nodemask_0, policy, nodemask);
+
+	/* Test MPOL_DEFAULT policy */
+	kvm_mbind(mem, total_size, MPOL_DEFAULT, NULL, 0, 0);
+	kvm_get_mempolicy(&policy, &nodemask, maxnode, mem, MPOL_F_ADDR);
+	TEST_ASSERT(policy == MPOL_DEFAULT && !nodemask,
+		    "Wanted MPOL_DEFAULT (%u) and nodemask 0x0, got %u and 0x%lx",
+		    MPOL_DEFAULT, policy, nodemask);
+
+	/* Test with invalid policy */
+	ret = mbind(mem, page_size, 999, &nodemask_0, maxnode, 0);
+	TEST_ASSERT(ret == -1 && errno == EINVAL,
+		    "mbind with invalid policy should fail with EINVAL");
+
+	kvm_munmap(mem, total_size);
+}
+
+static void test_numa_allocation(int fd, size_t total_size)
+{
+	unsigned long node0_mask = 1;  /* Node 0 */
+	unsigned long node1_mask = 2;  /* Node 1 */
+	unsigned long maxnode = 8;
+	void *pages[4];
+	int status[4];
+	char *mem;
+	int i;
+
+	if (!is_multi_numa_node_system())
+		return;
+
+	mem = kvm_mmap(total_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+
+	for (i = 0; i < 4; i++)
+		pages[i] = (char *)mem + page_size * i;
+
+	/* Set NUMA policy after allocation */
+	memset(mem, 0xaa, page_size);
+	kvm_mbind(pages[0], page_size, MPOL_BIND, &node0_mask, maxnode, 0);
+	kvm_fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, page_size);
+
+	/* Set NUMA policy before allocation */
+	kvm_mbind(pages[0], page_size * 2, MPOL_BIND, &node1_mask, maxnode, 0);
+	kvm_mbind(pages[2], page_size * 2, MPOL_BIND, &node0_mask, maxnode, 0);
+	memset(mem, 0xaa, total_size);
+
+	/* Validate if pages are allocated on specified NUMA nodes */
+	kvm_move_pages(0, 4, pages, NULL, status, 0);
+	TEST_ASSERT(status[0] == 1, "Expected page 0 on node 1, got it on node %d", status[0]);
+	TEST_ASSERT(status[1] == 1, "Expected page 1 on node 1, got it on node %d", status[1]);
+	TEST_ASSERT(status[2] == 0, "Expected page 2 on node 0, got it on node %d", status[2]);
+	TEST_ASSERT(status[3] == 0, "Expected page 3 on node 0, got it on node %d", status[3]);
+
+	/* Punch hole for all pages */
+	kvm_fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, total_size);
+
+	/* Change NUMA policy nodes and reallocate */
+	kvm_mbind(pages[0], page_size * 2, MPOL_BIND, &node0_mask, maxnode, 0);
+	kvm_mbind(pages[2], page_size * 2, MPOL_BIND, &node1_mask, maxnode, 0);
+	memset(mem, 0xaa, total_size);
+
+	kvm_move_pages(0, 4, pages, NULL, status, 0);
+	TEST_ASSERT(status[0] == 0, "Expected page 0 on node 0, got it on node %d", status[0]);
+	TEST_ASSERT(status[1] == 0, "Expected page 1 on node 0, got it on node %d", status[1]);
+	TEST_ASSERT(status[2] == 1, "Expected page 2 on node 1, got it on node %d", status[2]);
+	TEST_ASSERT(status[3] == 1, "Expected page 3 on node 1, got it on node %d", status[3]);
+
+	kvm_munmap(mem, total_size);
+}
+
+static void test_fault_sigbus(int fd, size_t accessible_size, size_t map_size)
+{
+	const char val = 0xaa;
+	char *mem;
+	size_t i;
+
+	mem = kvm_mmap(map_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+
+	TEST_EXPECT_SIGBUS(memset(mem, val, map_size));
+	TEST_EXPECT_SIGBUS((void)READ_ONCE(mem[accessible_size]));
+
+	for (i = 0; i < accessible_size; i++)
+		TEST_ASSERT_EQ(READ_ONCE(mem[i]), val);
+
+	kvm_munmap(mem, map_size);
+}
+
+static void test_fault_overflow(int fd, size_t total_size)
+{
+	test_fault_sigbus(fd, total_size, total_size * 4);
+}
+
+static void test_fault_private(int fd, size_t total_size)
+{
+	test_fault_sigbus(fd, 0, total_size);
+}
+
+static void test_mmap_not_supported(int fd, size_t total_size)
+{
+	char *mem;
+
+	mem = mmap(NULL, page_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	TEST_ASSERT_EQ(mem, MAP_FAILED);
+
+	mem = mmap(NULL, total_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	TEST_ASSERT_EQ(mem, MAP_FAILED);
+}
+
+static void test_file_size(int fd, size_t total_size)
+{
+	struct stat sb;
+	int ret;
+
+	ret = fstat(fd, &sb);
+	TEST_ASSERT(!ret, "fstat should succeed");
+	TEST_ASSERT_EQ(sb.st_size, total_size);
+	TEST_ASSERT_EQ(sb.st_blksize, page_size);
+}
+
+static void test_fallocate(int fd, size_t total_size)
+{
+	int ret;
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE, 0, total_size);
+	TEST_ASSERT(!ret, "fallocate with aligned offset and size should succeed");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+			page_size - 1, page_size);
+	TEST_ASSERT(ret, "fallocate with unaligned offset should fail");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE, total_size, page_size);
+	TEST_ASSERT(ret, "fallocate beginning at total_size should fail");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE, total_size + page_size, page_size);
+	TEST_ASSERT(ret, "fallocate beginning after total_size should fail");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+			total_size, page_size);
+	TEST_ASSERT(!ret, "fallocate(PUNCH_HOLE) at total_size should succeed");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+			total_size + page_size, page_size);
+	TEST_ASSERT(!ret, "fallocate(PUNCH_HOLE) after total_size should succeed");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+			page_size, page_size - 1);
+	TEST_ASSERT(ret, "fallocate with unaligned size should fail");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+			page_size, page_size);
+	TEST_ASSERT(!ret, "fallocate(PUNCH_HOLE) with aligned offset and size should succeed");
+
+	ret = fallocate(fd, FALLOC_FL_KEEP_SIZE, page_size, page_size);
+	TEST_ASSERT(!ret, "fallocate to restore punched hole should succeed");
+}
+
+static void test_invalid_punch_hole(int fd, size_t total_size)
+{
+	struct {
+		off_t offset;
+		off_t len;
+	} testcases[] = {
+		{0, 1},
+		{0, page_size - 1},
+		{0, page_size + 1},
+
+		{1, 1},
+		{1, page_size - 1},
+		{1, page_size},
+		{1, page_size + 1},
+
+		{page_size, 1},
+		{page_size, page_size - 1},
+		{page_size, page_size + 1},
+	};
+	int ret, i;
+
+	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
+		ret = fallocate(fd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE,
+				testcases[i].offset, testcases[i].len);
+		TEST_ASSERT(ret == -1 && errno == EINVAL,
+			    "PUNCH_HOLE with !PAGE_SIZE offset (%lx) and/or length (%lx) should fail",
+			    testcases[i].offset, testcases[i].len);
+	}
+}
+
+static void test_create_guest_memfd_invalid_sizes(struct kvm_vm *vm,
+						  uint64_t guest_memfd_flags)
+{
+	size_t size;
+	int fd;
+
+	for (size = 1; size < page_size; size++) {
+		fd = __vm_create_guest_memfd(vm, size, guest_memfd_flags);
+		TEST_ASSERT(fd < 0 && errno == EINVAL,
+			    "guest_memfd() with non-page-aligned page size '0x%lx' should fail with EINVAL",
+			    size);
+	}
+}
+
+static void test_create_guest_memfd_multiple(struct kvm_vm *vm)
+{
+	int fd1, fd2, ret;
+	struct stat st1, st2;
+
+	fd1 = __vm_create_guest_memfd(vm, page_size, 0);
+	TEST_ASSERT(fd1 != -1, "memfd creation should succeed");
+
+	ret = fstat(fd1, &st1);
+	TEST_ASSERT(ret != -1, "memfd fstat should succeed");
+	TEST_ASSERT(st1.st_size == page_size, "memfd st_size should match requested size");
+
+	fd2 = __vm_create_guest_memfd(vm, page_size * 2, 0);
+	TEST_ASSERT(fd2 != -1, "memfd creation should succeed");
+
+	ret = fstat(fd2, &st2);
+	TEST_ASSERT(ret != -1, "memfd fstat should succeed");
+	TEST_ASSERT(st2.st_size == page_size * 2, "second memfd st_size should match requested size");
+
+	ret = fstat(fd1, &st1);
+	TEST_ASSERT(ret != -1, "memfd fstat should succeed");
+	TEST_ASSERT(st1.st_size == page_size, "first memfd st_size should still match requested size");
+	TEST_ASSERT(st1.st_ino != st2.st_ino, "different memfd should have different inode numbers");
+
+	close(fd2);
+	close(fd1);
+}
+
+static void test_guest_memfd_flags(struct kvm_vm *vm)
+{
+	uint64_t valid_flags = vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS);
+	uint64_t flag;
+	int fd;
+
+	for (flag = BIT(0); flag; flag <<= 1) {
+		fd = __vm_create_guest_memfd(vm, page_size, flag);
+		if (flag & valid_flags) {
+			TEST_ASSERT(fd >= 0,
+				    "guest_memfd() with flag '0x%lx' should succeed",
+				    flag);
+			close(fd);
+		} else {
+			TEST_ASSERT(fd < 0 && errno == EINVAL,
+				    "guest_memfd() with flag '0x%lx' should fail with EINVAL",
+				    flag);
+		}
+	}
+}
+
+#define gmem_test(__test, __vm, __flags)				\
+do {									\
+	int fd = vm_create_guest_memfd(__vm, page_size * 4, __flags);	\
+									\
+	test_##__test(fd, page_size * 4);				\
+	close(fd);							\
+} while (0)
+
+static void __test_guest_memfd(struct kvm_vm *vm, uint64_t flags)
+{
+	test_create_guest_memfd_multiple(vm);
+	test_create_guest_memfd_invalid_sizes(vm, flags);
+
+	gmem_test(file_read_write, vm, flags);
+
+	if (flags & GUEST_MEMFD_FLAG_MMAP) {
+		if (flags & GUEST_MEMFD_FLAG_INIT_SHARED) {
+			gmem_test(mmap_supported, vm, flags);
+			gmem_test(fault_overflow, vm, flags);
+			gmem_test(numa_allocation, vm, flags);
+		} else {
+			gmem_test(fault_private, vm, flags);
+		}
+
+		gmem_test(mmap_cow, vm, flags);
+		gmem_test(mbind, vm, flags);
+	} else {
+		gmem_test(mmap_not_supported, vm, flags);
+	}
+
+	gmem_test(file_size, vm, flags);
+	gmem_test(fallocate, vm, flags);
+	gmem_test(invalid_punch_hole, vm, flags);
+}
+
+static void test_guest_memfd(unsigned long vm_type)
+{
+	struct kvm_vm *vm = vm_create_barebones_type(vm_type);
+	uint64_t flags;
+
+	test_guest_memfd_flags(vm);
+
+	__test_guest_memfd(vm, 0);
+
+	flags = vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS);
+	if (flags & GUEST_MEMFD_FLAG_MMAP)
+		__test_guest_memfd(vm, GUEST_MEMFD_FLAG_MMAP);
+
+	/* MMAP should always be supported if INIT_SHARED is supported. */
+	if (flags & GUEST_MEMFD_FLAG_INIT_SHARED)
+		__test_guest_memfd(vm, GUEST_MEMFD_FLAG_MMAP |
+				       GUEST_MEMFD_FLAG_INIT_SHARED);
+
+	kvm_vm_free(vm);
+}
+
+static void guest_code(uint8_t *mem, uint64_t size)
+{
+	size_t i;
+
+	for (i = 0; i < size; i++)
+		__GUEST_ASSERT(mem[i] == 0xaa,
+			       "Guest expected 0xaa at offset %lu, got 0x%x", i, mem[i]);
+
+	memset(mem, 0xff, size);
+	GUEST_DONE();
+}
+
+static void test_guest_memfd_guest(void)
+{
+	/*
+	 * Skip the first 4gb and slot0.  slot0 maps <1gb and is used to back
+	 * the guest's code, stack, and page tables, and low memory contains
+	 * the PCI hole and other MMIO regions that need to be avoided.
+	 */
+	const uint64_t gpa = SZ_4G;
+	const int slot = 1;
+
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint8_t *mem;
+	size_t size;
+	int fd, i;
+
+	if (!kvm_check_cap(KVM_CAP_GUEST_MEMFD_FLAGS))
+		return;
+
+	vm = __vm_create_shape_with_one_vcpu(VM_SHAPE_DEFAULT, &vcpu, 1, guest_code);
+
+	TEST_ASSERT(vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS) & GUEST_MEMFD_FLAG_MMAP,
+		    "Default VM type should support MMAP, supported flags = 0x%x",
+		    vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS));
+	TEST_ASSERT(vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS) & GUEST_MEMFD_FLAG_INIT_SHARED,
+		    "Default VM type should support INIT_SHARED, supported flags = 0x%x",
+		    vm_check_cap(vm, KVM_CAP_GUEST_MEMFD_FLAGS));
+
+	size = vm->page_size;
+	fd = vm_create_guest_memfd(vm, size, GUEST_MEMFD_FLAG_MMAP |
+					     GUEST_MEMFD_FLAG_INIT_SHARED);
+	vm_set_user_memory_region2(vm, slot, KVM_MEM_GUEST_MEMFD, gpa, size, NULL, fd, 0);
+
+	mem = kvm_mmap(size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+	memset(mem, 0xaa, size);
+	kvm_munmap(mem, size);
+
+	virt_pg_map(vm, gpa, gpa);
+	vcpu_args_set(vcpu, 2, gpa, size);
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+
+	mem = kvm_mmap(size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+	for (i = 0; i < size; i++)
+		TEST_ASSERT_EQ(mem[i], 0xff);
+
+	close(fd);
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned long vm_types, vm_type;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_GUEST_MEMFD));
+
+	page_size = getpagesize();
+
+	/*
+	 * Not all architectures support KVM_CAP_VM_TYPES. However, those that
+	 * support guest_memfd have that support for the default VM type.
+	 */
+	vm_types = kvm_check_cap(KVM_CAP_VM_TYPES);
+	if (!vm_types)
+		vm_types = BIT(VM_TYPE_DEFAULT);
+
+	for_each_set_bit(vm_type, &vm_types, BITS_PER_TYPE(vm_types))
+		test_guest_memfd(vm_type);
+
+	test_guest_memfd_guest();
+}
diff --git a/tools/testing/selftests/kvm/guest_print_test.c b/tools/testing/selftests/kvm/guest_print_test.c
new file mode 100644
index 000000000000..bcf582852db9
--- /dev/null
+++ b/tools/testing/selftests/kvm/guest_print_test.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A test for GUEST_PRINTF
+ *
+ * Copyright 2022, Google, Inc. and/or its affiliates.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+struct guest_vals {
+	uint64_t a;
+	uint64_t b;
+	uint64_t type;
+};
+
+static struct guest_vals vals;
+
+/* GUEST_PRINTF()/GUEST_ASSERT_FMT() does not support float or double. */
+#define TYPE_LIST					\
+TYPE(test_type_i64,  I64,  "%ld",   int64_t)		\
+TYPE(test_type_u64,  U64u, "%lu",   uint64_t)		\
+TYPE(test_type_x64,  U64x, "0x%lx", uint64_t)		\
+TYPE(test_type_X64,  U64X, "0x%lX", uint64_t)		\
+TYPE(test_type_u32,  U32u, "%u",    uint32_t)		\
+TYPE(test_type_x32,  U32x, "0x%x",  uint32_t)		\
+TYPE(test_type_X32,  U32X, "0x%X",  uint32_t)		\
+TYPE(test_type_int,  INT,  "%d",    int)		\
+TYPE(test_type_char, CHAR, "%c",    char)		\
+TYPE(test_type_str,  STR,  "'%s'",  const char *)	\
+TYPE(test_type_ptr,  PTR,  "%p",    uintptr_t)
+
+enum args_type {
+#define TYPE(fn, ext, fmt_t, T) TYPE_##ext,
+	TYPE_LIST
+#undef TYPE
+};
+
+static void run_test(struct kvm_vcpu *vcpu, const char *expected_printf,
+		     const char *expected_assert);
+
+#define BUILD_TYPE_STRINGS_AND_HELPER(fn, ext, fmt_t, T)		     \
+const char *PRINTF_FMT_##ext = "Got params a = " fmt_t " and b = " fmt_t;    \
+const char *ASSERT_FMT_##ext = "Expected " fmt_t ", got " fmt_t " instead";  \
+static void fn(struct kvm_vcpu *vcpu, T a, T b)				     \
+{									     \
+	char expected_printf[UCALL_BUFFER_LEN];				     \
+	char expected_assert[UCALL_BUFFER_LEN];				     \
+									     \
+	snprintf(expected_printf, UCALL_BUFFER_LEN, PRINTF_FMT_##ext, a, b); \
+	snprintf(expected_assert, UCALL_BUFFER_LEN, ASSERT_FMT_##ext, a, b); \
+	vals = (struct guest_vals){ (uint64_t)a, (uint64_t)b, TYPE_##ext };  \
+	sync_global_to_guest(vcpu->vm, vals);				     \
+	run_test(vcpu, expected_printf, expected_assert);		     \
+}
+
+#define TYPE(fn, ext, fmt_t, T) \
+		BUILD_TYPE_STRINGS_AND_HELPER(fn, ext, fmt_t, T)
+	TYPE_LIST
+#undef TYPE
+
+static void guest_code(void)
+{
+	while (1) {
+		switch (vals.type) {
+#define TYPE(fn, ext, fmt_t, T)							\
+		case TYPE_##ext:						\
+			GUEST_PRINTF(PRINTF_FMT_##ext, vals.a, vals.b);		\
+			__GUEST_ASSERT(vals.a == vals.b,			\
+				       ASSERT_FMT_##ext, vals.a, vals.b);	\
+			break;
+		TYPE_LIST
+#undef TYPE
+		default:
+			GUEST_SYNC(vals.type);
+		}
+
+		GUEST_DONE();
+	}
+}
+
+/*
+ * Unfortunately this gets a little messy because 'assert_msg' doesn't
+ * just contains the matching string, it also contains additional assert
+ * info.  Fortunately the part that matches should be at the very end of
+ * 'assert_msg'.
+ */
+static void ucall_abort(const char *assert_msg, const char *expected_assert_msg)
+{
+	int len_str = strlen(assert_msg);
+	int len_substr = strlen(expected_assert_msg);
+	int offset = len_str - len_substr;
+
+	TEST_ASSERT(len_substr <= len_str,
+		    "Expected '%s' to be a substring of '%s'",
+		    assert_msg, expected_assert_msg);
+
+	TEST_ASSERT(strcmp(&assert_msg[offset], expected_assert_msg) == 0,
+		    "Unexpected mismatch. Expected: '%s', got: '%s'",
+		    expected_assert_msg, &assert_msg[offset]);
+}
+
+/*
+ * Open code vcpu_run(), sans the UCALL_ABORT handling, so that intentional
+ * guest asserts guest can be verified instead of being reported as failures.
+ */
+static void do_vcpu_run(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	do {
+		r = __vcpu_run(vcpu);
+	} while (r == -1 && errno == EINTR);
+
+	TEST_ASSERT(!r, KVM_IOCTL_ERROR(KVM_RUN, r));
+}
+
+static void run_test(struct kvm_vcpu *vcpu, const char *expected_printf,
+		     const char *expected_assert)
+{
+	struct kvm_run *run = vcpu->run;
+	struct ucall uc;
+
+	while (1) {
+		do_vcpu_run(vcpu);
+
+		TEST_ASSERT(run->exit_reason == UCALL_EXIT_REASON,
+			    "Unexpected exit reason: %u (%s),",
+			    run->exit_reason, exit_reason_str(run->exit_reason));
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			TEST_FAIL("Unknown 'args_type' = %lu", uc.args[1]);
+			break;
+		case UCALL_PRINTF:
+			TEST_ASSERT(strcmp(uc.buffer, expected_printf) == 0,
+				    "Unexpected mismatch. Expected: '%s', got: '%s'",
+				    expected_printf, uc.buffer);
+			break;
+		case UCALL_ABORT:
+			ucall_abort(uc.buffer, expected_assert);
+			break;
+		case UCALL_DONE:
+			return;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+}
+
+static void guest_code_limits(void)
+{
+	char test_str[UCALL_BUFFER_LEN + 10];
+
+	memset(test_str, 'a', sizeof(test_str));
+	test_str[sizeof(test_str) - 1] = 0;
+
+	GUEST_PRINTF("%s", test_str);
+}
+
+static void test_limits(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_limits);
+	run = vcpu->run;
+	do_vcpu_run(vcpu);
+
+	TEST_ASSERT(run->exit_reason == UCALL_EXIT_REASON,
+		    "Unexpected exit reason: %u (%s),",
+		    run->exit_reason, exit_reason_str(run->exit_reason));
+
+	TEST_ASSERT(get_ucall(vcpu, &uc) == UCALL_ABORT,
+		    "Unexpected ucall command: %lu,  Expected: %u (UCALL_ABORT)",
+		    uc.cmd, UCALL_ABORT);
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	test_type_i64(vcpu, -1, -1);
+	test_type_i64(vcpu, -1,  1);
+	test_type_i64(vcpu, 0x1234567890abcdef, 0x1234567890abcdef);
+	test_type_i64(vcpu, 0x1234567890abcdef, 0x1234567890abcdee);
+
+	test_type_u64(vcpu, 0x1234567890abcdef, 0x1234567890abcdef);
+	test_type_u64(vcpu, 0x1234567890abcdef, 0x1234567890abcdee);
+	test_type_x64(vcpu, 0x1234567890abcdef, 0x1234567890abcdef);
+	test_type_x64(vcpu, 0x1234567890abcdef, 0x1234567890abcdee);
+	test_type_X64(vcpu, 0x1234567890abcdef, 0x1234567890abcdef);
+	test_type_X64(vcpu, 0x1234567890abcdef, 0x1234567890abcdee);
+
+	test_type_u32(vcpu, 0x90abcdef, 0x90abcdef);
+	test_type_u32(vcpu, 0x90abcdef, 0x90abcdee);
+	test_type_x32(vcpu, 0x90abcdef, 0x90abcdef);
+	test_type_x32(vcpu, 0x90abcdef, 0x90abcdee);
+	test_type_X32(vcpu, 0x90abcdef, 0x90abcdef);
+	test_type_X32(vcpu, 0x90abcdef, 0x90abcdee);
+
+	test_type_int(vcpu, -1, -1);
+	test_type_int(vcpu, -1,  1);
+	test_type_int(vcpu,  1,  1);
+
+	test_type_char(vcpu, 'a', 'a');
+	test_type_char(vcpu, 'a', 'A');
+	test_type_char(vcpu, 'a', 'b');
+
+	test_type_str(vcpu, "foo", "foo");
+	test_type_str(vcpu, "foo", "bar");
+
+	test_type_ptr(vcpu, 0x1234567890abcdef, 0x1234567890abcdef);
+	test_type_ptr(vcpu, 0x1234567890abcdef, 0x1234567890abcdee);
+
+	kvm_vm_free(vm);
+
+	test_limits();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/hardware_disable_test.c b/tools/testing/selftests/kvm/hardware_disable_test.c
new file mode 100644
index 000000000000..94bd6ed24cf3
--- /dev/null
+++ b/tools/testing/selftests/kvm/hardware_disable_test.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This test is intended to reproduce a crash that happens when
+ * kvm_arch_hardware_disable is called and it attempts to unregister the user
+ * return notifiers.
+ */
+#include <fcntl.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include <test_util.h>
+
+#include "kvm_util.h"
+
+#define VCPU_NUM 4
+#define SLEEPING_THREAD_NUM (1 << 4)
+#define FORK_NUM (1ULL << 9)
+#define DELAY_US_MAX 2000
+
+sem_t *sem;
+
+static void guest_code(void)
+{
+	for (;;)
+		;  /* Some busy work */
+	printf("Should not be reached.\n");
+}
+
+static void *run_vcpu(void *arg)
+{
+	struct kvm_vcpu *vcpu = arg;
+	struct kvm_run *run = vcpu->run;
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT(false, "%s: exited with reason %d: %s",
+		    __func__, run->exit_reason,
+		    exit_reason_str(run->exit_reason));
+	pthread_exit(NULL);
+}
+
+static void *sleeping_thread(void *arg)
+{
+	int fd;
+
+	while (true) {
+		fd = open("/dev/null", O_RDWR);
+		close(fd);
+	}
+	TEST_ASSERT(false, "%s: exited", __func__);
+	pthread_exit(NULL);
+}
+
+static inline void check_create_thread(pthread_t *thread, pthread_attr_t *attr,
+				       void *(*f)(void *), void *arg)
+{
+	int r;
+
+	r = pthread_create(thread, attr, f, arg);
+	TEST_ASSERT(r == 0, "%s: failed to create thread", __func__);
+}
+
+static inline void check_set_affinity(pthread_t thread, cpu_set_t *cpu_set)
+{
+	int r;
+
+	r = pthread_setaffinity_np(thread, sizeof(cpu_set_t), cpu_set);
+	TEST_ASSERT(r == 0, "%s: failed set affinity", __func__);
+}
+
+static inline void check_join(pthread_t thread, void **retval)
+{
+	int r;
+
+	r = pthread_join(thread, retval);
+	TEST_ASSERT(r == 0, "%s: failed to join thread", __func__);
+}
+
+static void run_test(uint32_t run)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	cpu_set_t cpu_set;
+	pthread_t threads[VCPU_NUM];
+	pthread_t throw_away;
+	void *b;
+	uint32_t i, j;
+
+	CPU_ZERO(&cpu_set);
+	for (i = 0; i < VCPU_NUM; i++)
+		CPU_SET(i, &cpu_set);
+
+	vm = vm_create(VCPU_NUM);
+
+	pr_debug("%s: [%d] start vcpus\n", __func__, run);
+	for (i = 0; i < VCPU_NUM; ++i) {
+		vcpu = vm_vcpu_add(vm, i, guest_code);
+
+		check_create_thread(&threads[i], NULL, run_vcpu, vcpu);
+		check_set_affinity(threads[i], &cpu_set);
+
+		for (j = 0; j < SLEEPING_THREAD_NUM; ++j) {
+			check_create_thread(&throw_away, NULL, sleeping_thread,
+					    (void *)NULL);
+			check_set_affinity(throw_away, &cpu_set);
+		}
+	}
+	pr_debug("%s: [%d] all threads launched\n", __func__, run);
+	sem_post(sem);
+	for (i = 0; i < VCPU_NUM; ++i)
+		check_join(threads[i], &b);
+	/* Should not be reached */
+	TEST_ASSERT(false, "%s: [%d] child escaped the ninja", __func__, run);
+}
+
+void wait_for_child_setup(pid_t pid)
+{
+	/*
+	 * Wait for the child to post to the semaphore, but wake up periodically
+	 * to check if the child exited prematurely.
+	 */
+	for (;;) {
+		const struct timespec wait_period = { .tv_sec = 1 };
+		int status;
+
+		if (!sem_timedwait(sem, &wait_period))
+			return;
+
+		/* Child is still running, keep waiting. */
+		if (pid != waitpid(pid, &status, WNOHANG))
+			continue;
+
+		/*
+		 * Child is no longer running, which is not expected.
+		 *
+		 * If it exited with a non-zero status, we explicitly forward
+		 * the child's status in case it exited with KSFT_SKIP.
+		 */
+		if (WIFEXITED(status))
+			exit(WEXITSTATUS(status));
+		else
+			TEST_ASSERT(false, "Child exited unexpectedly");
+	}
+}
+
+int main(int argc, char **argv)
+{
+	uint32_t i;
+	int s, r;
+	pid_t pid;
+
+	sem = sem_open("vm_sem", O_CREAT | O_EXCL, 0644, 0);
+	sem_unlink("vm_sem");
+
+	for (i = 0; i < FORK_NUM; ++i) {
+		pid = fork();
+		TEST_ASSERT(pid >= 0, "%s: unable to fork", __func__);
+		if (pid == 0)
+			run_test(i); /* This function always exits */
+
+		pr_debug("%s: [%d] waiting semaphore\n", __func__, i);
+		wait_for_child_setup(pid);
+		r = (rand() % DELAY_US_MAX) + 1;
+		pr_debug("%s: [%d] waiting %dus\n", __func__, i, r);
+		usleep(r);
+		r = waitpid(pid, &s, WNOHANG);
+		TEST_ASSERT(r != pid,
+			    "%s: [%d] child exited unexpectedly status: [%d]",
+			    __func__, i, s);
+		pr_debug("%s: [%d] killing child\n", __func__, i);
+		kill(pid, SIGKILL);
+	}
+
+	sem_destroy(sem);
+	exit(0);
+}
diff --git a/tools/testing/selftests/kvm/include/arm64/arch_timer.h b/tools/testing/selftests/kvm/include/arm64/arch_timer.h
new file mode 100644
index 000000000000..e2c4e9f0010f
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/arch_timer.h
@@ -0,0 +1,182 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM Generic Timer specific interface
+ */
+
+#ifndef SELFTEST_KVM_ARCH_TIMER_H
+#define SELFTEST_KVM_ARCH_TIMER_H
+
+#include "processor.h"
+
+enum arch_timer {
+	VIRTUAL,
+	PHYSICAL,
+};
+
+#define CTL_ENABLE	(1 << 0)
+#define CTL_IMASK	(1 << 1)
+#define CTL_ISTATUS	(1 << 2)
+
+#define msec_to_cycles(msec)	\
+	(timer_get_cntfrq() * (uint64_t)(msec) / 1000)
+
+#define usec_to_cycles(usec)	\
+	(timer_get_cntfrq() * (uint64_t)(usec) / 1000000)
+
+#define cycles_to_usec(cycles) \
+	((uint64_t)(cycles) * 1000000 / timer_get_cntfrq())
+
+static inline uint32_t timer_get_cntfrq(void)
+{
+	return read_sysreg(cntfrq_el0);
+}
+
+static inline uint64_t timer_get_cntct(enum arch_timer timer)
+{
+	isb();
+
+	switch (timer) {
+	case VIRTUAL:
+		return read_sysreg(cntvct_el0);
+	case PHYSICAL:
+		return read_sysreg(cntpct_el0);
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	/* We should not reach here */
+	return 0;
+}
+
+static inline void timer_set_cval(enum arch_timer timer, uint64_t cval)
+{
+	switch (timer) {
+	case VIRTUAL:
+		write_sysreg(cval, cntv_cval_el0);
+		break;
+	case PHYSICAL:
+		write_sysreg(cval, cntp_cval_el0);
+		break;
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	isb();
+}
+
+static inline uint64_t timer_get_cval(enum arch_timer timer)
+{
+	switch (timer) {
+	case VIRTUAL:
+		return read_sysreg(cntv_cval_el0);
+	case PHYSICAL:
+		return read_sysreg(cntp_cval_el0);
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	/* We should not reach here */
+	return 0;
+}
+
+static inline void timer_set_tval(enum arch_timer timer, int32_t tval)
+{
+	switch (timer) {
+	case VIRTUAL:
+		write_sysreg(tval, cntv_tval_el0);
+		break;
+	case PHYSICAL:
+		write_sysreg(tval, cntp_tval_el0);
+		break;
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	isb();
+}
+
+static inline int32_t timer_get_tval(enum arch_timer timer)
+{
+	isb();
+	switch (timer) {
+	case VIRTUAL:
+		return read_sysreg(cntv_tval_el0);
+	case PHYSICAL:
+		return read_sysreg(cntp_tval_el0);
+	default:
+		GUEST_FAIL("Could not get timer %d\n", timer);
+	}
+
+	/* We should not reach here */
+	return 0;
+}
+
+static inline void timer_set_ctl(enum arch_timer timer, uint32_t ctl)
+{
+	switch (timer) {
+	case VIRTUAL:
+		write_sysreg(ctl, cntv_ctl_el0);
+		break;
+	case PHYSICAL:
+		write_sysreg(ctl, cntp_ctl_el0);
+		break;
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	isb();
+}
+
+static inline uint32_t timer_get_ctl(enum arch_timer timer)
+{
+	switch (timer) {
+	case VIRTUAL:
+		return read_sysreg(cntv_ctl_el0);
+	case PHYSICAL:
+		return read_sysreg(cntp_ctl_el0);
+	default:
+		GUEST_FAIL("Unexpected timer type = %u", timer);
+	}
+
+	/* We should not reach here */
+	return 0;
+}
+
+static inline void timer_set_next_cval_ms(enum arch_timer timer, uint32_t msec)
+{
+	uint64_t now_ct = timer_get_cntct(timer);
+	uint64_t next_ct = now_ct + msec_to_cycles(msec);
+
+	timer_set_cval(timer, next_ct);
+}
+
+static inline void timer_set_next_tval_ms(enum arch_timer timer, uint32_t msec)
+{
+	timer_set_tval(timer, msec_to_cycles(msec));
+}
+
+static inline u32 vcpu_get_vtimer_irq(struct kvm_vcpu *vcpu)
+{
+	u32 intid;
+	u64 attr;
+
+	attr = vcpu_has_el2(vcpu) ? KVM_ARM_VCPU_TIMER_IRQ_HVTIMER :
+				    KVM_ARM_VCPU_TIMER_IRQ_VTIMER;
+	vcpu_device_attr_get(vcpu, KVM_ARM_VCPU_TIMER_CTRL, attr, &intid);
+
+	return intid;
+}
+
+static inline u32 vcpu_get_ptimer_irq(struct kvm_vcpu *vcpu)
+{
+	u32 intid;
+	u64 attr;
+
+	attr = vcpu_has_el2(vcpu) ? KVM_ARM_VCPU_TIMER_IRQ_HPTIMER :
+				    KVM_ARM_VCPU_TIMER_IRQ_PTIMER;
+	vcpu_device_attr_get(vcpu, KVM_ARM_VCPU_TIMER_CTRL, attr, &intid);
+
+	return intid;
+}
+
+#endif /* SELFTEST_KVM_ARCH_TIMER_H */
diff --git a/tools/testing/selftests/kvm/include/arm64/delay.h b/tools/testing/selftests/kvm/include/arm64/delay.h
new file mode 100644
index 000000000000..329e4f5079ea
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/delay.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM simple delay routines
+ */
+
+#ifndef SELFTEST_KVM_ARM_DELAY_H
+#define SELFTEST_KVM_ARM_DELAY_H
+
+#include "arch_timer.h"
+
+static inline void __delay(uint64_t cycles)
+{
+	enum arch_timer timer = VIRTUAL;
+	uint64_t start = timer_get_cntct(timer);
+
+	while ((timer_get_cntct(timer) - start) < cycles)
+		cpu_relax();
+}
+
+static inline void udelay(unsigned long usec)
+{
+	__delay(usec_to_cycles(usec));
+}
+
+#endif /* SELFTEST_KVM_ARM_DELAY_H */
diff --git a/tools/testing/selftests/kvm/include/arm64/gic.h b/tools/testing/selftests/kvm/include/arm64/gic.h
new file mode 100644
index 000000000000..cc7a7f34ed37
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/gic.h
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM Generic Interrupt Controller (GIC) specific defines
+ */
+
+#ifndef SELFTEST_KVM_GIC_H
+#define SELFTEST_KVM_GIC_H
+
+#include <asm/kvm.h>
+
+enum gic_type {
+	GIC_V3,
+	GIC_TYPE_MAX,
+};
+
+/*
+ * Note that the redistributor frames are at the end, as the range scales
+ * with the number of vCPUs in the VM.
+ */
+#define GITS_BASE_GPA		0x8000000ULL
+#define GICD_BASE_GPA		(GITS_BASE_GPA + KVM_VGIC_V3_ITS_SIZE)
+#define GICR_BASE_GPA		(GICD_BASE_GPA + KVM_VGIC_V3_DIST_SIZE)
+
+/* The GIC is identity-mapped into the guest at the time of setup. */
+#define GITS_BASE_GVA		((volatile void *)GITS_BASE_GPA)
+#define GICD_BASE_GVA		((volatile void *)GICD_BASE_GPA)
+#define GICR_BASE_GVA		((volatile void *)GICR_BASE_GPA)
+
+#define MIN_SGI			0
+#define MIN_PPI			16
+#define MIN_SPI			32
+#define MAX_SPI			1019
+#define IAR_SPURIOUS		1023
+
+#define INTID_IS_SGI(intid)	(0       <= (intid) && (intid) < MIN_PPI)
+#define INTID_IS_PPI(intid)	(MIN_PPI <= (intid) && (intid) < MIN_SPI)
+#define INTID_IS_SPI(intid)	(MIN_SPI <= (intid) && (intid) <= MAX_SPI)
+
+void gic_init(enum gic_type type, unsigned int nr_cpus);
+void gic_irq_enable(unsigned int intid);
+void gic_irq_disable(unsigned int intid);
+unsigned int gic_get_and_ack_irq(void);
+void gic_set_eoi(unsigned int intid);
+void gic_set_dir(unsigned int intid);
+
+/*
+ * Sets the EOI mode. When split is false, EOI just drops the priority. When
+ * split is true, EOI drops the priority and deactivates the interrupt.
+ */
+void gic_set_eoi_split(bool split);
+void gic_set_priority_mask(uint64_t mask);
+void gic_set_priority(uint32_t intid, uint32_t prio);
+void gic_irq_set_active(unsigned int intid);
+void gic_irq_clear_active(unsigned int intid);
+bool gic_irq_get_active(unsigned int intid);
+void gic_irq_set_pending(unsigned int intid);
+void gic_irq_clear_pending(unsigned int intid);
+bool gic_irq_get_pending(unsigned int intid);
+void gic_irq_set_config(unsigned int intid, bool is_edge);
+void gic_irq_set_group(unsigned int intid, bool group);
+
+void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size,
+			   vm_paddr_t pend_table);
+
+#endif /* SELFTEST_KVM_GIC_H */
diff --git a/tools/testing/selftests/kvm/include/arm64/gic_v3.h b/tools/testing/selftests/kvm/include/arm64/gic_v3.h
new file mode 100644
index 000000000000..a76615fa39a1
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/gic_v3.h
@@ -0,0 +1,604 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013, 2014 ARM Limited, All Rights Reserved.
+ * Author: Marc Zyngier <marc.zyngier@arm.com>
+ */
+#ifndef __SELFTESTS_GIC_V3_H
+#define __SELFTESTS_GIC_V3_H
+
+/*
+ * Distributor registers. We assume we're running non-secure, with ARE
+ * being set. Secure-only and non-ARE registers are not described.
+ */
+#define GICD_CTLR			0x0000
+#define GICD_TYPER			0x0004
+#define GICD_IIDR			0x0008
+#define GICD_TYPER2			0x000C
+#define GICD_STATUSR			0x0010
+#define GICD_SETSPI_NSR			0x0040
+#define GICD_CLRSPI_NSR			0x0048
+#define GICD_SETSPI_SR			0x0050
+#define GICD_CLRSPI_SR			0x0058
+#define GICD_IGROUPR			0x0080
+#define GICD_ISENABLER			0x0100
+#define GICD_ICENABLER			0x0180
+#define GICD_ISPENDR			0x0200
+#define GICD_ICPENDR			0x0280
+#define GICD_ISACTIVER			0x0300
+#define GICD_ICACTIVER			0x0380
+#define GICD_IPRIORITYR			0x0400
+#define GICD_ICFGR			0x0C00
+#define GICD_IGRPMODR			0x0D00
+#define GICD_NSACR			0x0E00
+#define GICD_IGROUPRnE			0x1000
+#define GICD_ISENABLERnE		0x1200
+#define GICD_ICENABLERnE		0x1400
+#define GICD_ISPENDRnE			0x1600
+#define GICD_ICPENDRnE			0x1800
+#define GICD_ISACTIVERnE		0x1A00
+#define GICD_ICACTIVERnE		0x1C00
+#define GICD_IPRIORITYRnE		0x2000
+#define GICD_ICFGRnE			0x3000
+#define GICD_IROUTER			0x6000
+#define GICD_IROUTERnE			0x8000
+#define GICD_IDREGS			0xFFD0
+#define GICD_PIDR2			0xFFE8
+
+#define ESPI_BASE_INTID			4096
+
+/*
+ * Those registers are actually from GICv2, but the spec demands that they
+ * are implemented as RES0 if ARE is 1 (which we do in KVM's emulated GICv3).
+ */
+#define GICD_ITARGETSR			0x0800
+#define GICD_SGIR			0x0F00
+#define GICD_CPENDSGIR			0x0F10
+#define GICD_SPENDSGIR			0x0F20
+
+#define GICD_CTLR_RWP			(1U << 31)
+#define GICD_CTLR_nASSGIreq		(1U << 8)
+#define GICD_CTLR_DS			(1U << 6)
+#define GICD_CTLR_ARE_NS		(1U << 4)
+#define GICD_CTLR_ENABLE_G1A		(1U << 1)
+#define GICD_CTLR_ENABLE_G1		(1U << 0)
+
+#define GICD_IIDR_IMPLEMENTER_SHIFT	0
+#define GICD_IIDR_IMPLEMENTER_MASK	(0xfff << GICD_IIDR_IMPLEMENTER_SHIFT)
+#define GICD_IIDR_REVISION_SHIFT	12
+#define GICD_IIDR_REVISION_MASK		(0xf << GICD_IIDR_REVISION_SHIFT)
+#define GICD_IIDR_VARIANT_SHIFT		16
+#define GICD_IIDR_VARIANT_MASK		(0xf << GICD_IIDR_VARIANT_SHIFT)
+#define GICD_IIDR_PRODUCT_ID_SHIFT	24
+#define GICD_IIDR_PRODUCT_ID_MASK	(0xff << GICD_IIDR_PRODUCT_ID_SHIFT)
+
+
+/*
+ * In systems with a single security state (what we emulate in KVM)
+ * the meaning of the interrupt group enable bits is slightly different
+ */
+#define GICD_CTLR_ENABLE_SS_G1		(1U << 1)
+#define GICD_CTLR_ENABLE_SS_G0		(1U << 0)
+
+#define GICD_TYPER_RSS			(1U << 26)
+#define GICD_TYPER_LPIS			(1U << 17)
+#define GICD_TYPER_MBIS			(1U << 16)
+#define GICD_TYPER_ESPI			(1U << 8)
+
+#define GICD_TYPER_ID_BITS(typer)	((((typer) >> 19) & 0x1f) + 1)
+#define GICD_TYPER_NUM_LPIS(typer)	((((typer) >> 11) & 0x1f) + 1)
+#define GICD_TYPER_SPIS(typer)		((((typer) & 0x1f) + 1) * 32)
+#define GICD_TYPER_ESPIS(typer)						\
+	(((typer) & GICD_TYPER_ESPI) ? GICD_TYPER_SPIS((typer) >> 27) : 0)
+
+#define GICD_TYPER2_nASSGIcap		(1U << 8)
+#define GICD_TYPER2_VIL			(1U << 7)
+#define GICD_TYPER2_VID			GENMASK(4, 0)
+
+#define GICD_IROUTER_SPI_MODE_ONE	(0U << 31)
+#define GICD_IROUTER_SPI_MODE_ANY	(1U << 31)
+
+#define GIC_PIDR2_ARCH_MASK		0xf0
+#define GIC_PIDR2_ARCH_GICv3		0x30
+#define GIC_PIDR2_ARCH_GICv4		0x40
+
+#define GIC_V3_DIST_SIZE		0x10000
+
+#define GIC_PAGE_SIZE_4K		0ULL
+#define GIC_PAGE_SIZE_16K		1ULL
+#define GIC_PAGE_SIZE_64K		2ULL
+#define GIC_PAGE_SIZE_MASK		3ULL
+
+/*
+ * Re-Distributor registers, offsets from RD_base
+ */
+#define GICR_CTLR			GICD_CTLR
+#define GICR_IIDR			0x0004
+#define GICR_TYPER			0x0008
+#define GICR_STATUSR			GICD_STATUSR
+#define GICR_WAKER			0x0014
+#define GICR_SETLPIR			0x0040
+#define GICR_CLRLPIR			0x0048
+#define GICR_PROPBASER			0x0070
+#define GICR_PENDBASER			0x0078
+#define GICR_INVLPIR			0x00A0
+#define GICR_INVALLR			0x00B0
+#define GICR_SYNCR			0x00C0
+#define GICR_IDREGS			GICD_IDREGS
+#define GICR_PIDR2			GICD_PIDR2
+
+#define GICR_CTLR_ENABLE_LPIS		(1UL << 0)
+#define GICR_CTLR_CES			(1UL << 1)
+#define GICR_CTLR_IR			(1UL << 2)
+#define GICR_CTLR_RWP			(1UL << 3)
+
+#define GICR_TYPER_CPU_NUMBER(r)	(((r) >> 8) & 0xffff)
+
+#define EPPI_BASE_INTID			1056
+
+#define GICR_TYPER_NR_PPIS(r)						\
+	({								\
+		unsigned int __ppinum = ((r) >> 27) & 0x1f;		\
+		unsigned int __nr_ppis = 16;				\
+		if (__ppinum == 1 || __ppinum == 2)			\
+			__nr_ppis +=  __ppinum * 32;			\
+									\
+		__nr_ppis;						\
+	 })
+
+#define GICR_WAKER_ProcessorSleep	(1U << 1)
+#define GICR_WAKER_ChildrenAsleep	(1U << 2)
+
+#define GIC_BASER_CACHE_nCnB		0ULL
+#define GIC_BASER_CACHE_SameAsInner	0ULL
+#define GIC_BASER_CACHE_nC		1ULL
+#define GIC_BASER_CACHE_RaWt		2ULL
+#define GIC_BASER_CACHE_RaWb		3ULL
+#define GIC_BASER_CACHE_WaWt		4ULL
+#define GIC_BASER_CACHE_WaWb		5ULL
+#define GIC_BASER_CACHE_RaWaWt		6ULL
+#define GIC_BASER_CACHE_RaWaWb		7ULL
+#define GIC_BASER_CACHE_MASK		7ULL
+#define GIC_BASER_NonShareable		0ULL
+#define GIC_BASER_InnerShareable	1ULL
+#define GIC_BASER_OuterShareable	2ULL
+#define GIC_BASER_SHAREABILITY_MASK	3ULL
+
+#define GIC_BASER_CACHEABILITY(reg, inner_outer, type)			\
+	(GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
+
+#define GIC_BASER_SHAREABILITY(reg, type)				\
+	(GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
+
+/* encode a size field of width @w containing @n - 1 units */
+#define GIC_ENCODE_SZ(n, w) (((unsigned long)(n) - 1) & GENMASK_ULL(((w) - 1), 0))
+
+#define GICR_PROPBASER_SHAREABILITY_SHIFT		(10)
+#define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT		(7)
+#define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT		(56)
+#define GICR_PROPBASER_SHAREABILITY_MASK				\
+	GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
+#define GICR_PROPBASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
+#define GICR_PROPBASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
+#define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_PROPBASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
+
+#define GICR_PROPBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nCnB)
+#define GICR_PROPBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
+#define GICR_PROPBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWt)
+#define GICR_PROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWb)
+#define GICR_PROPBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWt)
+#define GICR_PROPBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
+#define GICR_PROPBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWt)
+#define GICR_PROPBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, RaWaWb)
+
+#define GICR_PROPBASER_IDBITS_MASK			(0x1f)
+#define GICR_PROPBASER_ADDRESS(x)	((x) & GENMASK_ULL(51, 12))
+#define GICR_PENDBASER_ADDRESS(x)	((x) & GENMASK_ULL(51, 16))
+
+#define GICR_PENDBASER_SHAREABILITY_SHIFT		(10)
+#define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT		(7)
+#define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT		(56)
+#define GICR_PENDBASER_SHAREABILITY_MASK				\
+	GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
+#define GICR_PENDBASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
+#define GICR_PENDBASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
+#define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_PENDBASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
+
+#define GICR_PENDBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nCnB)
+#define GICR_PENDBASER_nC 	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
+#define GICR_PENDBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWt)
+#define GICR_PENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWb)
+#define GICR_PENDBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWt)
+#define GICR_PENDBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
+#define GICR_PENDBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWt)
+#define GICR_PENDBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, RaWaWb)
+
+#define GICR_PENDBASER_PTZ				BIT_ULL(62)
+
+/*
+ * Re-Distributor registers, offsets from SGI_base
+ */
+#define GICR_IGROUPR0			GICD_IGROUPR
+#define GICR_ISENABLER0			GICD_ISENABLER
+#define GICR_ICENABLER0			GICD_ICENABLER
+#define GICR_ISPENDR0			GICD_ISPENDR
+#define GICR_ICPENDR0			GICD_ICPENDR
+#define GICR_ISACTIVER0			GICD_ISACTIVER
+#define GICR_ICACTIVER0			GICD_ICACTIVER
+#define GICR_IPRIORITYR0		GICD_IPRIORITYR
+#define GICR_ICFGR0			GICD_ICFGR
+#define GICR_IGRPMODR0			GICD_IGRPMODR
+#define GICR_NSACR			GICD_NSACR
+
+#define GICR_TYPER_PLPIS		(1U << 0)
+#define GICR_TYPER_VLPIS		(1U << 1)
+#define GICR_TYPER_DIRTY		(1U << 2)
+#define GICR_TYPER_DirectLPIS		(1U << 3)
+#define GICR_TYPER_LAST			(1U << 4)
+#define GICR_TYPER_RVPEID		(1U << 7)
+#define GICR_TYPER_COMMON_LPI_AFF	GENMASK_ULL(25, 24)
+#define GICR_TYPER_AFFINITY		GENMASK_ULL(63, 32)
+
+#define GICR_INVLPIR_INTID		GENMASK_ULL(31, 0)
+#define GICR_INVLPIR_VPEID		GENMASK_ULL(47, 32)
+#define GICR_INVLPIR_V			GENMASK_ULL(63, 63)
+
+#define GICR_INVALLR_VPEID		GICR_INVLPIR_VPEID
+#define GICR_INVALLR_V			GICR_INVLPIR_V
+
+#define GIC_V3_REDIST_SIZE		0x20000
+
+#define LPI_PROP_GROUP1			(1 << 1)
+#define LPI_PROP_ENABLED		(1 << 0)
+
+/*
+ * Re-Distributor registers, offsets from VLPI_base
+ */
+#define GICR_VPROPBASER			0x0070
+
+#define GICR_VPROPBASER_IDBITS_MASK	0x1f
+
+#define GICR_VPROPBASER_SHAREABILITY_SHIFT		(10)
+#define GICR_VPROPBASER_INNER_CACHEABILITY_SHIFT	(7)
+#define GICR_VPROPBASER_OUTER_CACHEABILITY_SHIFT	(56)
+
+#define GICR_VPROPBASER_SHAREABILITY_MASK				\
+	GIC_BASER_SHAREABILITY(GICR_VPROPBASER, SHAREABILITY_MASK)
+#define GICR_VPROPBASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, MASK)
+#define GICR_VPROPBASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, OUTER, MASK)
+#define GICR_VPROPBASER_CACHEABILITY_MASK				\
+	GICR_VPROPBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_VPROPBASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GICR_VPROPBASER, InnerShareable)
+
+#define GICR_VPROPBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nCnB)
+#define GICR_VPROPBASER_nC 	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, nC)
+#define GICR_VPROPBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWt)
+#define GICR_VPROPBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWb)
+#define GICR_VPROPBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWt)
+#define GICR_VPROPBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, WaWb)
+#define GICR_VPROPBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWt)
+#define GICR_VPROPBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_VPROPBASER, INNER, RaWaWb)
+
+/*
+ * GICv4.1 VPROPBASER reinvention. A subtle mix between the old
+ * VPROPBASER and ITS_BASER. Just not quite any of the two.
+ */
+#define GICR_VPROPBASER_4_1_VALID	(1ULL << 63)
+#define GICR_VPROPBASER_4_1_ENTRY_SIZE	GENMASK_ULL(61, 59)
+#define GICR_VPROPBASER_4_1_INDIRECT	(1ULL << 55)
+#define GICR_VPROPBASER_4_1_PAGE_SIZE	GENMASK_ULL(54, 53)
+#define GICR_VPROPBASER_4_1_Z		(1ULL << 52)
+#define GICR_VPROPBASER_4_1_ADDR	GENMASK_ULL(51, 12)
+#define GICR_VPROPBASER_4_1_SIZE	GENMASK_ULL(6, 0)
+
+#define GICR_VPENDBASER			0x0078
+
+#define GICR_VPENDBASER_SHAREABILITY_SHIFT		(10)
+#define GICR_VPENDBASER_INNER_CACHEABILITY_SHIFT	(7)
+#define GICR_VPENDBASER_OUTER_CACHEABILITY_SHIFT	(56)
+#define GICR_VPENDBASER_SHAREABILITY_MASK				\
+	GIC_BASER_SHAREABILITY(GICR_VPENDBASER, SHAREABILITY_MASK)
+#define GICR_VPENDBASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, MASK)
+#define GICR_VPENDBASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, OUTER, MASK)
+#define GICR_VPENDBASER_CACHEABILITY_MASK				\
+	GICR_VPENDBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_VPENDBASER_NonShareable					\
+	GIC_BASER_SHAREABILITY(GICR_VPENDBASER, NonShareable)
+
+#define GICR_VPENDBASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GICR_VPENDBASER, InnerShareable)
+
+#define GICR_VPENDBASER_nCnB	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nCnB)
+#define GICR_VPENDBASER_nC 	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, nC)
+#define GICR_VPENDBASER_RaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWt)
+#define GICR_VPENDBASER_RaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWb)
+#define GICR_VPENDBASER_WaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWt)
+#define GICR_VPENDBASER_WaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, WaWb)
+#define GICR_VPENDBASER_RaWaWt	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWt)
+#define GICR_VPENDBASER_RaWaWb	GIC_BASER_CACHEABILITY(GICR_VPENDBASER, INNER, RaWaWb)
+
+#define GICR_VPENDBASER_Dirty		(1ULL << 60)
+#define GICR_VPENDBASER_PendingLast	(1ULL << 61)
+#define GICR_VPENDBASER_IDAI		(1ULL << 62)
+#define GICR_VPENDBASER_Valid		(1ULL << 63)
+
+/*
+ * GICv4.1 VPENDBASER, used for VPE residency. On top of these fields,
+ * also use the above Valid, PendingLast and Dirty.
+ */
+#define GICR_VPENDBASER_4_1_DB		(1ULL << 62)
+#define GICR_VPENDBASER_4_1_VGRP0EN	(1ULL << 59)
+#define GICR_VPENDBASER_4_1_VGRP1EN	(1ULL << 58)
+#define GICR_VPENDBASER_4_1_VPEID	GENMASK_ULL(15, 0)
+
+#define GICR_VSGIR			0x0080
+
+#define GICR_VSGIR_VPEID		GENMASK(15, 0)
+
+#define GICR_VSGIPENDR			0x0088
+
+#define GICR_VSGIPENDR_BUSY		(1U << 31)
+#define GICR_VSGIPENDR_PENDING		GENMASK(15, 0)
+
+/*
+ * ITS registers, offsets from ITS_base
+ */
+#define GITS_CTLR			0x0000
+#define GITS_IIDR			0x0004
+#define GITS_TYPER			0x0008
+#define GITS_MPIDR			0x0018
+#define GITS_CBASER			0x0080
+#define GITS_CWRITER			0x0088
+#define GITS_CREADR			0x0090
+#define GITS_BASER			0x0100
+#define GITS_IDREGS_BASE		0xffd0
+#define GITS_PIDR0			0xffe0
+#define GITS_PIDR1			0xffe4
+#define GITS_PIDR2			GICR_PIDR2
+#define GITS_PIDR4			0xffd0
+#define GITS_CIDR0			0xfff0
+#define GITS_CIDR1			0xfff4
+#define GITS_CIDR2			0xfff8
+#define GITS_CIDR3			0xfffc
+
+#define GITS_TRANSLATER			0x10040
+
+#define GITS_SGIR			0x20020
+
+#define GITS_SGIR_VPEID			GENMASK_ULL(47, 32)
+#define GITS_SGIR_VINTID		GENMASK_ULL(3, 0)
+
+#define GITS_CTLR_ENABLE		(1U << 0)
+#define GITS_CTLR_ImDe			(1U << 1)
+#define	GITS_CTLR_ITS_NUMBER_SHIFT	4
+#define	GITS_CTLR_ITS_NUMBER		(0xFU << GITS_CTLR_ITS_NUMBER_SHIFT)
+#define GITS_CTLR_QUIESCENT		(1U << 31)
+
+#define GITS_TYPER_PLPIS		(1UL << 0)
+#define GITS_TYPER_VLPIS		(1UL << 1)
+#define GITS_TYPER_ITT_ENTRY_SIZE_SHIFT	4
+#define GITS_TYPER_ITT_ENTRY_SIZE	GENMASK_ULL(7, 4)
+#define GITS_TYPER_IDBITS_SHIFT		8
+#define GITS_TYPER_DEVBITS_SHIFT	13
+#define GITS_TYPER_DEVBITS		GENMASK_ULL(17, 13)
+#define GITS_TYPER_PTA			(1UL << 19)
+#define GITS_TYPER_HCC_SHIFT		24
+#define GITS_TYPER_HCC(r)		(((r) >> GITS_TYPER_HCC_SHIFT) & 0xff)
+#define GITS_TYPER_VMOVP		(1ULL << 37)
+#define GITS_TYPER_VMAPP		(1ULL << 40)
+#define GITS_TYPER_SVPET		GENMASK_ULL(42, 41)
+
+#define GITS_IIDR_REV_SHIFT		12
+#define GITS_IIDR_REV_MASK		(0xf << GITS_IIDR_REV_SHIFT)
+#define GITS_IIDR_REV(r)		(((r) >> GITS_IIDR_REV_SHIFT) & 0xf)
+#define GITS_IIDR_PRODUCTID_SHIFT	24
+
+#define GITS_CBASER_VALID			(1ULL << 63)
+#define GITS_CBASER_SHAREABILITY_SHIFT		(10)
+#define GITS_CBASER_INNER_CACHEABILITY_SHIFT	(59)
+#define GITS_CBASER_OUTER_CACHEABILITY_SHIFT	(53)
+#define GITS_CBASER_SHAREABILITY_MASK					\
+	GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
+#define GITS_CBASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
+#define GITS_CBASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
+#define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
+
+#define GITS_CBASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
+
+#define GITS_CBASER_nCnB	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nCnB)
+#define GITS_CBASER_nC		GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
+#define GITS_CBASER_RaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWt)
+#define GITS_CBASER_RaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWb)
+#define GITS_CBASER_WaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWt)
+#define GITS_CBASER_WaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
+#define GITS_CBASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWt)
+#define GITS_CBASER_RaWaWb	GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, RaWaWb)
+
+#define GITS_CBASER_ADDRESS(cbaser)	((cbaser) & GENMASK_ULL(51, 12))
+
+#define GITS_BASER_NR_REGS		8
+
+#define GITS_BASER_VALID			(1ULL << 63)
+#define GITS_BASER_INDIRECT			(1ULL << 62)
+
+#define GITS_BASER_INNER_CACHEABILITY_SHIFT	(59)
+#define GITS_BASER_OUTER_CACHEABILITY_SHIFT	(53)
+#define GITS_BASER_INNER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
+#define GITS_BASER_CACHEABILITY_MASK		GITS_BASER_INNER_CACHEABILITY_MASK
+#define GITS_BASER_OUTER_CACHEABILITY_MASK				\
+	GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
+#define GITS_BASER_SHAREABILITY_MASK					\
+	GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
+
+#define GITS_BASER_nCnB		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nCnB)
+#define GITS_BASER_nC		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
+#define GITS_BASER_RaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWt)
+#define GITS_BASER_RaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWb)
+#define GITS_BASER_WaWt		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWt)
+#define GITS_BASER_WaWb		GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
+#define GITS_BASER_RaWaWt	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWt)
+#define GITS_BASER_RaWaWb	GIC_BASER_CACHEABILITY(GITS_BASER, INNER, RaWaWb)
+
+#define GITS_BASER_TYPE_SHIFT			(56)
+#define GITS_BASER_TYPE(r)		(((r) >> GITS_BASER_TYPE_SHIFT) & 7)
+#define GITS_BASER_ENTRY_SIZE_SHIFT		(48)
+#define GITS_BASER_ENTRY_SIZE(r)	((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
+#define GITS_BASER_ENTRY_SIZE_MASK	GENMASK_ULL(52, 48)
+#define GITS_BASER_PHYS_52_to_48(phys)					\
+	(((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
+#define GITS_BASER_ADDR_48_to_52(baser)					\
+	(((baser) & GENMASK_ULL(47, 16)) | (((baser) >> 12) & 0xf) << 48)
+
+#define GITS_BASER_SHAREABILITY_SHIFT	(10)
+#define GITS_BASER_InnerShareable					\
+	GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
+#define GITS_BASER_PAGE_SIZE_SHIFT	(8)
+#define __GITS_BASER_PSZ(sz)		(GIC_PAGE_SIZE_ ## sz << GITS_BASER_PAGE_SIZE_SHIFT)
+#define GITS_BASER_PAGE_SIZE_4K		__GITS_BASER_PSZ(4K)
+#define GITS_BASER_PAGE_SIZE_16K	__GITS_BASER_PSZ(16K)
+#define GITS_BASER_PAGE_SIZE_64K	__GITS_BASER_PSZ(64K)
+#define GITS_BASER_PAGE_SIZE_MASK	__GITS_BASER_PSZ(MASK)
+#define GITS_BASER_PAGES_MAX		256
+#define GITS_BASER_PAGES_SHIFT		(0)
+#define GITS_BASER_NR_PAGES(r)		(((r) & 0xff) + 1)
+
+#define GITS_BASER_TYPE_NONE		0
+#define GITS_BASER_TYPE_DEVICE		1
+#define GITS_BASER_TYPE_VCPU		2
+#define GITS_BASER_TYPE_RESERVED3	3
+#define GITS_BASER_TYPE_COLLECTION	4
+#define GITS_BASER_TYPE_RESERVED5	5
+#define GITS_BASER_TYPE_RESERVED6	6
+#define GITS_BASER_TYPE_RESERVED7	7
+
+#define GITS_LVL1_ENTRY_SIZE           (8UL)
+
+/*
+ * ITS commands
+ */
+#define GITS_CMD_MAPD			0x08
+#define GITS_CMD_MAPC			0x09
+#define GITS_CMD_MAPTI			0x0a
+#define GITS_CMD_MAPI			0x0b
+#define GITS_CMD_MOVI			0x01
+#define GITS_CMD_DISCARD		0x0f
+#define GITS_CMD_INV			0x0c
+#define GITS_CMD_MOVALL			0x0e
+#define GITS_CMD_INVALL			0x0d
+#define GITS_CMD_INT			0x03
+#define GITS_CMD_CLEAR			0x04
+#define GITS_CMD_SYNC			0x05
+
+/*
+ * GICv4 ITS specific commands
+ */
+#define GITS_CMD_GICv4(x)		((x) | 0x20)
+#define GITS_CMD_VINVALL		GITS_CMD_GICv4(GITS_CMD_INVALL)
+#define GITS_CMD_VMAPP			GITS_CMD_GICv4(GITS_CMD_MAPC)
+#define GITS_CMD_VMAPTI			GITS_CMD_GICv4(GITS_CMD_MAPTI)
+#define GITS_CMD_VMOVI			GITS_CMD_GICv4(GITS_CMD_MOVI)
+#define GITS_CMD_VSYNC			GITS_CMD_GICv4(GITS_CMD_SYNC)
+/* VMOVP, VSGI and INVDB are the odd ones, as they dont have a physical counterpart */
+#define GITS_CMD_VMOVP			GITS_CMD_GICv4(2)
+#define GITS_CMD_VSGI			GITS_CMD_GICv4(3)
+#define GITS_CMD_INVDB			GITS_CMD_GICv4(0xe)
+
+/*
+ * ITS error numbers
+ */
+#define E_ITS_MOVI_UNMAPPED_INTERRUPT		0x010107
+#define E_ITS_MOVI_UNMAPPED_COLLECTION		0x010109
+#define E_ITS_INT_UNMAPPED_INTERRUPT		0x010307
+#define E_ITS_CLEAR_UNMAPPED_INTERRUPT		0x010507
+#define E_ITS_MAPD_DEVICE_OOR			0x010801
+#define E_ITS_MAPD_ITTSIZE_OOR			0x010802
+#define E_ITS_MAPC_PROCNUM_OOR			0x010902
+#define E_ITS_MAPC_COLLECTION_OOR		0x010903
+#define E_ITS_MAPTI_UNMAPPED_DEVICE		0x010a04
+#define E_ITS_MAPTI_ID_OOR			0x010a05
+#define E_ITS_MAPTI_PHYSICALID_OOR		0x010a06
+#define E_ITS_INV_UNMAPPED_INTERRUPT		0x010c07
+#define E_ITS_INVALL_UNMAPPED_COLLECTION	0x010d09
+#define E_ITS_MOVALL_PROCNUM_OOR		0x010e01
+#define E_ITS_DISCARD_UNMAPPED_INTERRUPT	0x010f07
+
+/*
+ * CPU interface registers
+ */
+#define ICC_CTLR_EL1_EOImode_SHIFT	(1)
+#define ICC_CTLR_EL1_EOImode_drop_dir	(0U << ICC_CTLR_EL1_EOImode_SHIFT)
+#define ICC_CTLR_EL1_EOImode_drop	(1U << ICC_CTLR_EL1_EOImode_SHIFT)
+#define ICC_CTLR_EL1_EOImode_MASK	(1 << ICC_CTLR_EL1_EOImode_SHIFT)
+#define ICC_CTLR_EL1_CBPR_SHIFT		0
+#define ICC_CTLR_EL1_CBPR_MASK		(1 << ICC_CTLR_EL1_CBPR_SHIFT)
+#define ICC_CTLR_EL1_PMHE_SHIFT		6
+#define ICC_CTLR_EL1_PMHE_MASK		(1 << ICC_CTLR_EL1_PMHE_SHIFT)
+#define ICC_CTLR_EL1_PRI_BITS_SHIFT	8
+#define ICC_CTLR_EL1_PRI_BITS_MASK	(0x7 << ICC_CTLR_EL1_PRI_BITS_SHIFT)
+#define ICC_CTLR_EL1_ID_BITS_SHIFT	11
+#define ICC_CTLR_EL1_ID_BITS_MASK	(0x7 << ICC_CTLR_EL1_ID_BITS_SHIFT)
+#define ICC_CTLR_EL1_SEIS_SHIFT		14
+#define ICC_CTLR_EL1_SEIS_MASK		(0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
+#define ICC_CTLR_EL1_A3V_SHIFT		15
+#define ICC_CTLR_EL1_A3V_MASK		(0x1 << ICC_CTLR_EL1_A3V_SHIFT)
+#define ICC_CTLR_EL1_RSS		(0x1 << 18)
+#define ICC_CTLR_EL1_ExtRange		(0x1 << 19)
+#define ICC_PMR_EL1_SHIFT		0
+#define ICC_PMR_EL1_MASK		(0xff << ICC_PMR_EL1_SHIFT)
+#define ICC_BPR0_EL1_SHIFT		0
+#define ICC_BPR0_EL1_MASK		(0x7 << ICC_BPR0_EL1_SHIFT)
+#define ICC_BPR1_EL1_SHIFT		0
+#define ICC_BPR1_EL1_MASK		(0x7 << ICC_BPR1_EL1_SHIFT)
+#define ICC_IGRPEN0_EL1_SHIFT		0
+#define ICC_IGRPEN0_EL1_MASK		(1 << ICC_IGRPEN0_EL1_SHIFT)
+#define ICC_IGRPEN1_EL1_SHIFT		0
+#define ICC_IGRPEN1_EL1_MASK		(1 << ICC_IGRPEN1_EL1_SHIFT)
+#define ICC_SRE_EL1_DIB			(1U << 2)
+#define ICC_SRE_EL1_DFB			(1U << 1)
+#define ICC_SRE_EL1_SRE			(1U << 0)
+
+/* These are for GICv2 emulation only */
+#define GICH_LR_VIRTUALID		(0x3ffUL << 0)
+#define GICH_LR_PHYSID_CPUID_SHIFT	(10)
+#define GICH_LR_PHYSID_CPUID		(7UL << GICH_LR_PHYSID_CPUID_SHIFT)
+
+#define ICC_IAR1_EL1_SPURIOUS		0x3ff
+
+#define ICC_SRE_EL2_SRE			(1 << 0)
+#define ICC_SRE_EL2_ENABLE		(1 << 3)
+
+#define ICC_SGI1R_TARGET_LIST_SHIFT	0
+#define ICC_SGI1R_TARGET_LIST_MASK	(0xffff << ICC_SGI1R_TARGET_LIST_SHIFT)
+#define ICC_SGI1R_AFFINITY_1_SHIFT	16
+#define ICC_SGI1R_AFFINITY_1_MASK	(0xff << ICC_SGI1R_AFFINITY_1_SHIFT)
+#define ICC_SGI1R_SGI_ID_SHIFT		24
+#define ICC_SGI1R_SGI_ID_MASK		(0xfULL << ICC_SGI1R_SGI_ID_SHIFT)
+#define ICC_SGI1R_AFFINITY_2_SHIFT	32
+#define ICC_SGI1R_AFFINITY_2_MASK	(0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
+#define ICC_SGI1R_IRQ_ROUTING_MODE_BIT	40
+#define ICC_SGI1R_RS_SHIFT		44
+#define ICC_SGI1R_RS_MASK		(0xfULL << ICC_SGI1R_RS_SHIFT)
+#define ICC_SGI1R_AFFINITY_3_SHIFT	48
+#define ICC_SGI1R_AFFINITY_3_MASK	(0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/arm64/gic_v3_its.h b/tools/testing/selftests/kvm/include/arm64/gic_v3_its.h
new file mode 100644
index 000000000000..58feef3eb386
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/gic_v3_its.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __SELFTESTS_GIC_V3_ITS_H__
+#define __SELFTESTS_GIC_V3_ITS_H__
+
+#include <linux/sizes.h>
+
+void its_init(vm_paddr_t coll_tbl, size_t coll_tbl_sz,
+	      vm_paddr_t device_tbl, size_t device_tbl_sz,
+	      vm_paddr_t cmdq, size_t cmdq_size);
+
+void its_send_mapd_cmd(void *cmdq_base, u32 device_id, vm_paddr_t itt_base,
+		       size_t itt_size, bool valid);
+void its_send_mapc_cmd(void *cmdq_base, u32 vcpu_id, u32 collection_id, bool valid);
+void its_send_mapti_cmd(void *cmdq_base, u32 device_id, u32 event_id,
+			u32 collection_id, u32 intid);
+void its_send_invall_cmd(void *cmdq_base, u32 collection_id);
+void its_send_sync_cmd(void *cmdq_base, u32 vcpu_id);
+
+#endif // __SELFTESTS_GIC_V3_ITS_H__
diff --git a/tools/testing/selftests/kvm/include/arm64/kvm_util_arch.h b/tools/testing/selftests/kvm/include/arm64/kvm_util_arch.h
new file mode 100644
index 000000000000..b973bb2c64a6
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/kvm_util_arch.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_ARCH_H
+#define SELFTEST_KVM_UTIL_ARCH_H
+
+struct kvm_vm_arch {
+	bool	has_gic;
+	int	gic_fd;
+};
+
+#endif  // SELFTEST_KVM_UTIL_ARCH_H
diff --git a/tools/testing/selftests/kvm/include/arm64/processor.h b/tools/testing/selftests/kvm/include/arm64/processor.h
new file mode 100644
index 000000000000..ff928716574d
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/processor.h
@@ -0,0 +1,387 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AArch64 processor specific defines
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#include "kvm_util.h"
+#include "ucall_common.h"
+
+#include <linux/stringify.h>
+#include <linux/types.h>
+#include <asm/brk-imm.h>
+#include <asm/esr.h>
+#include <asm/sysreg.h>
+
+
+#define ARM64_CORE_REG(x) (KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
+			   KVM_REG_ARM_CORE | KVM_REG_ARM_CORE_REG(x))
+
+/*
+ * KVM_ARM64_SYS_REG(sys_reg_id): Helper macro to convert
+ * SYS_* register definitions in asm/sysreg.h to use in KVM
+ * calls such as vcpu_get_reg() and vcpu_set_reg().
+ */
+#define KVM_ARM64_SYS_REG(sys_reg_id)			\
+	ARM64_SYS_REG(sys_reg_Op0(sys_reg_id),		\
+			sys_reg_Op1(sys_reg_id),	\
+			sys_reg_CRn(sys_reg_id),	\
+			sys_reg_CRm(sys_reg_id),	\
+			sys_reg_Op2(sys_reg_id))
+
+/*
+ * Default MAIR
+ *                  index   attribute
+ * DEVICE_nGnRnE      0     0000:0000
+ * DEVICE_nGnRE       1     0000:0100
+ * DEVICE_GRE         2     0000:1100
+ * NORMAL_NC          3     0100:0100
+ * NORMAL             4     1111:1111
+ * NORMAL_WT          5     1011:1011
+ */
+
+/* Linux doesn't use these memory types, so let's define them. */
+#define MAIR_ATTR_DEVICE_GRE	UL(0x0c)
+#define MAIR_ATTR_NORMAL_WT	UL(0xbb)
+
+#define MT_DEVICE_nGnRnE	0
+#define MT_DEVICE_nGnRE		1
+#define MT_DEVICE_GRE		2
+#define MT_NORMAL_NC		3
+#define MT_NORMAL		4
+#define MT_NORMAL_WT		5
+
+#define DEFAULT_MAIR_EL1							\
+	(MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRnE, MT_DEVICE_nGnRnE) |		\
+	 MAIR_ATTRIDX(MAIR_ATTR_DEVICE_nGnRE, MT_DEVICE_nGnRE) |		\
+	 MAIR_ATTRIDX(MAIR_ATTR_DEVICE_GRE, MT_DEVICE_GRE) |			\
+	 MAIR_ATTRIDX(MAIR_ATTR_NORMAL_NC, MT_NORMAL_NC) |			\
+	 MAIR_ATTRIDX(MAIR_ATTR_NORMAL, MT_NORMAL) |				\
+	 MAIR_ATTRIDX(MAIR_ATTR_NORMAL_WT, MT_NORMAL_WT))
+
+/* TCR_EL1 specific flags */
+#define TCR_T0SZ_OFFSET	0
+#define TCR_T0SZ(x)		((UL(64) - (x)) << TCR_T0SZ_OFFSET)
+
+#define TCR_IRGN0_SHIFT	8
+#define TCR_IRGN0_MASK		(UL(3) << TCR_IRGN0_SHIFT)
+#define TCR_IRGN0_NC		(UL(0) << TCR_IRGN0_SHIFT)
+#define TCR_IRGN0_WBWA		(UL(1) << TCR_IRGN0_SHIFT)
+#define TCR_IRGN0_WT		(UL(2) << TCR_IRGN0_SHIFT)
+#define TCR_IRGN0_WBnWA	(UL(3) << TCR_IRGN0_SHIFT)
+
+#define TCR_ORGN0_SHIFT	10
+#define TCR_ORGN0_MASK		(UL(3) << TCR_ORGN0_SHIFT)
+#define TCR_ORGN0_NC		(UL(0) << TCR_ORGN0_SHIFT)
+#define TCR_ORGN0_WBWA		(UL(1) << TCR_ORGN0_SHIFT)
+#define TCR_ORGN0_WT		(UL(2) << TCR_ORGN0_SHIFT)
+#define TCR_ORGN0_WBnWA	(UL(3) << TCR_ORGN0_SHIFT)
+
+#define TCR_SH0_SHIFT		12
+#define TCR_SH0_MASK		(UL(3) << TCR_SH0_SHIFT)
+#define TCR_SH0_INNER		(UL(3) << TCR_SH0_SHIFT)
+
+#define TCR_TG0_SHIFT		14
+#define TCR_TG0_MASK		(UL(3) << TCR_TG0_SHIFT)
+#define TCR_TG0_4K		(UL(0) << TCR_TG0_SHIFT)
+#define TCR_TG0_64K		(UL(1) << TCR_TG0_SHIFT)
+#define TCR_TG0_16K		(UL(2) << TCR_TG0_SHIFT)
+
+#define TCR_IPS_SHIFT		32
+#define TCR_IPS_MASK		(UL(7) << TCR_IPS_SHIFT)
+#define TCR_IPS_52_BITS	(UL(6) << TCR_IPS_SHIFT)
+#define TCR_IPS_48_BITS	(UL(5) << TCR_IPS_SHIFT)
+#define TCR_IPS_40_BITS	(UL(2) << TCR_IPS_SHIFT)
+#define TCR_IPS_36_BITS	(UL(1) << TCR_IPS_SHIFT)
+
+#define TCR_HA			(UL(1) << 39)
+#define TCR_DS			(UL(1) << 59)
+
+/*
+ * AttrIndx[2:0] encoding (mapping attributes defined in the MAIR* registers).
+ */
+#define PTE_ATTRINDX(t)	((t) << 2)
+#define PTE_ATTRINDX_MASK	GENMASK(4, 2)
+#define PTE_ATTRINDX_SHIFT	2
+
+#define PTE_VALID		BIT(0)
+#define PGD_TYPE_TABLE		BIT(1)
+#define PUD_TYPE_TABLE		BIT(1)
+#define PMD_TYPE_TABLE		BIT(1)
+#define PTE_TYPE_PAGE		BIT(1)
+
+#define PTE_SHARED		(UL(3) << 8) /* SH[1:0], inner shareable */
+#define PTE_AF			BIT(10)
+
+#define PTE_ADDR_MASK(page_shift)	GENMASK(47, (page_shift))
+#define PTE_ADDR_51_48			GENMASK(15, 12)
+#define PTE_ADDR_51_48_SHIFT		12
+#define PTE_ADDR_MASK_LPA2(page_shift)	GENMASK(49, (page_shift))
+#define PTE_ADDR_51_50_LPA2		GENMASK(9, 8)
+#define PTE_ADDR_51_50_LPA2_SHIFT	8
+
+void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init);
+struct kvm_vcpu *aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,
+				  struct kvm_vcpu_init *init, void *guest_code);
+
+struct ex_regs {
+	u64 regs[31];
+	u64 sp;
+	u64 pc;
+	u64 pstate;
+};
+
+#define VECTOR_NUM	16
+
+enum {
+	VECTOR_SYNC_CURRENT_SP0,
+	VECTOR_IRQ_CURRENT_SP0,
+	VECTOR_FIQ_CURRENT_SP0,
+	VECTOR_ERROR_CURRENT_SP0,
+
+	VECTOR_SYNC_CURRENT,
+	VECTOR_IRQ_CURRENT,
+	VECTOR_FIQ_CURRENT,
+	VECTOR_ERROR_CURRENT,
+
+	VECTOR_SYNC_LOWER_64,
+	VECTOR_IRQ_LOWER_64,
+	VECTOR_FIQ_LOWER_64,
+	VECTOR_ERROR_LOWER_64,
+
+	VECTOR_SYNC_LOWER_32,
+	VECTOR_IRQ_LOWER_32,
+	VECTOR_FIQ_LOWER_32,
+	VECTOR_ERROR_LOWER_32,
+};
+
+#define VECTOR_IS_SYNC(v) ((v) == VECTOR_SYNC_CURRENT_SP0 || \
+			   (v) == VECTOR_SYNC_CURRENT     || \
+			   (v) == VECTOR_SYNC_LOWER_64    || \
+			   (v) == VECTOR_SYNC_LOWER_32)
+
+void aarch64_get_supported_page_sizes(uint32_t ipa, uint32_t *ipa4k,
+					uint32_t *ipa16k, uint32_t *ipa64k);
+
+void vm_init_descriptor_tables(struct kvm_vm *vm);
+void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu);
+
+typedef void(*handler_fn)(struct ex_regs *);
+void vm_install_exception_handler(struct kvm_vm *vm,
+		int vector, handler_fn handler);
+void vm_install_sync_handler(struct kvm_vm *vm,
+		int vector, int ec, handler_fn handler);
+
+uint64_t *virt_get_pte_hva_at_level(struct kvm_vm *vm, vm_vaddr_t gva, int level);
+uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva);
+
+static inline void cpu_relax(void)
+{
+	asm volatile("yield" ::: "memory");
+}
+
+#define isb()		asm volatile("isb" : : : "memory")
+#define dsb(opt)	asm volatile("dsb " #opt : : : "memory")
+#define dmb(opt)	asm volatile("dmb " #opt : : : "memory")
+
+#define dma_wmb()	dmb(oshst)
+#define __iowmb()	dma_wmb()
+
+#define dma_rmb()	dmb(oshld)
+
+#define __iormb(v)							\
+({									\
+	unsigned long tmp;						\
+									\
+	dma_rmb();							\
+									\
+	/*								\
+	 * Courtesy of arch/arm64/include/asm/io.h:			\
+	 * Create a dummy control dependency from the IO read to any	\
+	 * later instructions. This ensures that a subsequent call	\
+	 * to udelay() will be ordered due to the ISB in __delay().	\
+	 */								\
+	asm volatile("eor	%0, %1, %1\n"				\
+		     "cbnz	%0, ."					\
+		     : "=r" (tmp) : "r" ((unsigned long)(v))		\
+		     : "memory");					\
+})
+
+static __always_inline void __raw_writel(u32 val, volatile void *addr)
+{
+	asm volatile("str %w0, [%1]" : : "rZ" (val), "r" (addr));
+}
+
+static __always_inline u32 __raw_readl(const volatile void *addr)
+{
+	u32 val;
+	asm volatile("ldr %w0, [%1]" : "=r" (val) : "r" (addr));
+	return val;
+}
+
+static __always_inline void __raw_writeq(u64 val, volatile void *addr)
+{
+	asm volatile("str %0, [%1]" : : "rZ" (val), "r" (addr));
+}
+
+static __always_inline u64 __raw_readq(const volatile void *addr)
+{
+	u64 val;
+	asm volatile("ldr %0, [%1]" : "=r" (val) : "r" (addr));
+	return val;
+}
+
+#define writel_relaxed(v,c)	((void)__raw_writel((__force u32)cpu_to_le32(v),(c)))
+#define readl_relaxed(c)	({ u32 __r = le32_to_cpu((__force __le32)__raw_readl(c)); __r; })
+#define writeq_relaxed(v,c)	((void)__raw_writeq((__force u64)cpu_to_le64(v),(c)))
+#define readq_relaxed(c)	({ u64 __r = le64_to_cpu((__force __le64)__raw_readq(c)); __r; })
+
+#define writel(v,c)		({ __iowmb(); writel_relaxed((v),(c));})
+#define readl(c)		({ u32 __v = readl_relaxed(c); __iormb(__v); __v; })
+#define writeq(v,c)		({ __iowmb(); writeq_relaxed((v),(c));})
+#define readq(c)		({ u64 __v = readq_relaxed(c); __iormb(__v); __v; })
+
+
+static inline void local_irq_enable(void)
+{
+	asm volatile("msr daifclr, #3" : : : "memory");
+}
+
+static inline void local_irq_disable(void)
+{
+	asm volatile("msr daifset, #3" : : : "memory");
+}
+
+static inline void local_serror_enable(void)
+{
+	asm volatile("msr daifclr, #4" : : : "memory");
+}
+
+static inline void local_serror_disable(void)
+{
+	asm volatile("msr daifset, #4" : : : "memory");
+}
+
+/**
+ * struct arm_smccc_res - Result from SMC/HVC call
+ * @a0-a3 result values from registers 0 to 3
+ */
+struct arm_smccc_res {
+	unsigned long a0;
+	unsigned long a1;
+	unsigned long a2;
+	unsigned long a3;
+};
+
+/**
+ * smccc_hvc - Invoke a SMCCC function using the hvc conduit
+ * @function_id: the SMCCC function to be called
+ * @arg0-arg6: SMCCC function arguments, corresponding to registers x1-x7
+ * @res: pointer to write the return values from registers x0-x3
+ *
+ */
+void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res);
+
+/**
+ * smccc_smc - Invoke a SMCCC function using the smc conduit
+ * @function_id: the SMCCC function to be called
+ * @arg0-arg6: SMCCC function arguments, corresponding to registers x1-x7
+ * @res: pointer to write the return values from registers x0-x3
+ *
+ */
+void smccc_smc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res);
+
+/* Execute a Wait For Interrupt instruction. */
+void wfi(void);
+
+void test_wants_mte(void);
+void test_disable_default_vgic(void);
+
+bool vm_supports_el2(struct kvm_vm *vm);
+
+static inline bool test_supports_el2(void)
+{
+	struct kvm_vm *vm = vm_create(1);
+	bool supported = vm_supports_el2(vm);
+
+	kvm_vm_free(vm);
+	return supported;
+}
+
+static inline bool vcpu_has_el2(struct kvm_vcpu *vcpu)
+{
+	return vcpu->init.features[0] & BIT(KVM_ARM_VCPU_HAS_EL2);
+}
+
+#define MAPPED_EL2_SYSREG(el2, el1)		\
+	case SYS_##el1:				\
+		if (vcpu_has_el2(vcpu))		\
+			alias = SYS_##el2;	\
+		break
+
+
+static __always_inline u64 ctxt_reg_alias(struct kvm_vcpu *vcpu, u32 encoding)
+{
+	u32 alias = encoding;
+
+	BUILD_BUG_ON(!__builtin_constant_p(encoding));
+
+	switch (encoding) {
+	MAPPED_EL2_SYSREG(SCTLR_EL2,		SCTLR_EL1);
+	MAPPED_EL2_SYSREG(CPTR_EL2,		CPACR_EL1);
+	MAPPED_EL2_SYSREG(TTBR0_EL2,		TTBR0_EL1);
+	MAPPED_EL2_SYSREG(TTBR1_EL2,		TTBR1_EL1);
+	MAPPED_EL2_SYSREG(TCR_EL2,		TCR_EL1);
+	MAPPED_EL2_SYSREG(VBAR_EL2,		VBAR_EL1);
+	MAPPED_EL2_SYSREG(AFSR0_EL2,		AFSR0_EL1);
+	MAPPED_EL2_SYSREG(AFSR1_EL2,		AFSR1_EL1);
+	MAPPED_EL2_SYSREG(ESR_EL2,		ESR_EL1);
+	MAPPED_EL2_SYSREG(FAR_EL2,		FAR_EL1);
+	MAPPED_EL2_SYSREG(MAIR_EL2,		MAIR_EL1);
+	MAPPED_EL2_SYSREG(TCR2_EL2,		TCR2_EL1);
+	MAPPED_EL2_SYSREG(PIR_EL2,		PIR_EL1);
+	MAPPED_EL2_SYSREG(PIRE0_EL2,		PIRE0_EL1);
+	MAPPED_EL2_SYSREG(POR_EL2,		POR_EL1);
+	MAPPED_EL2_SYSREG(AMAIR_EL2,		AMAIR_EL1);
+	MAPPED_EL2_SYSREG(ELR_EL2,		ELR_EL1);
+	MAPPED_EL2_SYSREG(SPSR_EL2,		SPSR_EL1);
+	MAPPED_EL2_SYSREG(ZCR_EL2,		ZCR_EL1);
+	MAPPED_EL2_SYSREG(CONTEXTIDR_EL2,	CONTEXTIDR_EL1);
+	MAPPED_EL2_SYSREG(SCTLR2_EL2,		SCTLR2_EL1);
+	MAPPED_EL2_SYSREG(CNTHCTL_EL2,		CNTKCTL_EL1);
+	case SYS_SP_EL1:
+		if (!vcpu_has_el2(vcpu))
+			return ARM64_CORE_REG(sp_el1);
+
+		alias = SYS_SP_EL2;
+		break;
+	default:
+		BUILD_BUG();
+	}
+
+	return KVM_ARM64_SYS_REG(alias);
+}
+
+void kvm_get_default_vcpu_target(struct kvm_vm *vm, struct kvm_vcpu_init *init);
+
+static inline unsigned int get_current_el(void)
+{
+	return (read_sysreg(CurrentEL) >> 2) & 0x3;
+}
+
+#define do_smccc(...)				\
+do {						\
+	if (get_current_el() == 2)		\
+		smccc_smc(__VA_ARGS__);		\
+	else					\
+		smccc_hvc(__VA_ARGS__);		\
+} while (0)
+
+#endif /* SELFTEST_KVM_PROCESSOR_H */
diff --git a/tools/testing/selftests/kvm/include/arm64/spinlock.h b/tools/testing/selftests/kvm/include/arm64/spinlock.h
new file mode 100644
index 000000000000..cf0984106d14
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/spinlock.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef SELFTEST_KVM_ARM64_SPINLOCK_H
+#define SELFTEST_KVM_ARM64_SPINLOCK_H
+
+struct spinlock {
+	int v;
+};
+
+extern void spin_lock(struct spinlock *lock);
+extern void spin_unlock(struct spinlock *lock);
+
+#endif /* SELFTEST_KVM_ARM64_SPINLOCK_H */
diff --git a/tools/testing/selftests/kvm/include/arm64/ucall.h b/tools/testing/selftests/kvm/include/arm64/ucall.h
new file mode 100644
index 000000000000..4ec801f37f00
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/ucall.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UCALL_H
+#define SELFTEST_KVM_UCALL_H
+
+#include "kvm_util.h"
+
+#define UCALL_EXIT_REASON       KVM_EXIT_MMIO
+
+/*
+ * ucall_exit_mmio_addr holds per-VM values (global data is duplicated by each
+ * VM), it must not be accessed from host code.
+ */
+extern vm_vaddr_t *ucall_exit_mmio_addr;
+
+static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
+{
+	WRITE_ONCE(*ucall_exit_mmio_addr, uc);
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/arm64/vgic.h b/tools/testing/selftests/kvm/include/arm64/vgic.h
new file mode 100644
index 000000000000..688beccc9436
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/arm64/vgic.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM Generic Interrupt Controller (GIC) host specific defines
+ */
+
+#ifndef SELFTEST_KVM_VGIC_H
+#define SELFTEST_KVM_VGIC_H
+
+#include <linux/kvm.h>
+
+#include "kvm_util.h"
+
+#define REDIST_REGION_ATTR_ADDR(count, base, flags, index) \
+	(((uint64_t)(count) << 52) | \
+	((uint64_t)((base) >> 16) << 16) | \
+	((uint64_t)(flags) << 12) | \
+	index)
+
+bool kvm_supports_vgic_v3(void);
+int __vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs);
+void __vgic_v3_init(int fd);
+int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs);
+
+#define VGIC_MAX_RESERVED	1023
+
+void kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level);
+int _kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level);
+
+void kvm_arm_irq_line(struct kvm_vm *vm, uint32_t intid, int level);
+int _kvm_arm_irq_line(struct kvm_vm *vm, uint32_t intid, int level);
+
+/* The vcpu arg only applies to private interrupts. */
+void kvm_irq_write_ispendr(int gic_fd, uint32_t intid, struct kvm_vcpu *vcpu);
+void kvm_irq_write_isactiver(int gic_fd, uint32_t intid, struct kvm_vcpu *vcpu);
+
+#define KVM_IRQCHIP_NUM_PINS	(1020 - 32)
+
+int vgic_its_setup(struct kvm_vm *vm);
+
+#endif // SELFTEST_KVM_VGIC_H
diff --git a/tools/testing/selftests/kvm/include/guest_modes.h b/tools/testing/selftests/kvm/include/guest_modes.h
new file mode 100644
index 000000000000..63f5167397cc
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/guest_modes.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include "kvm_util.h"
+
+struct guest_mode {
+	bool supported;
+	bool enabled;
+};
+
+extern struct guest_mode guest_modes[NUM_VM_MODES];
+
+#define guest_mode_append(mode, enabled) ({ \
+	guest_modes[mode] = (struct guest_mode){ (enabled), (enabled) }; \
+})
+
+void guest_modes_append_default(void);
+void for_each_guest_mode(void (*func)(enum vm_guest_mode, void *), void *arg);
+void guest_modes_help(void);
+void guest_modes_cmdline(const char *arg);
diff --git a/tools/testing/selftests/kvm/include/kvm_syscalls.h b/tools/testing/selftests/kvm/include/kvm_syscalls.h
new file mode 100644
index 000000000000..d4e613162bba
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/kvm_syscalls.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_SYSCALLS_H
+#define SELFTEST_KVM_SYSCALLS_H
+
+#include <sys/syscall.h>
+
+#define MAP_ARGS0(m,...)
+#define MAP_ARGS1(m,t,a,...) m(t,a)
+#define MAP_ARGS2(m,t,a,...) m(t,a), MAP_ARGS1(m,__VA_ARGS__)
+#define MAP_ARGS3(m,t,a,...) m(t,a), MAP_ARGS2(m,__VA_ARGS__)
+#define MAP_ARGS4(m,t,a,...) m(t,a), MAP_ARGS3(m,__VA_ARGS__)
+#define MAP_ARGS5(m,t,a,...) m(t,a), MAP_ARGS4(m,__VA_ARGS__)
+#define MAP_ARGS6(m,t,a,...) m(t,a), MAP_ARGS5(m,__VA_ARGS__)
+#define MAP_ARGS(n,...) MAP_ARGS##n(__VA_ARGS__)
+
+#define __DECLARE_ARGS(t, a)	t a
+#define __UNPACK_ARGS(t, a)	a
+
+#define DECLARE_ARGS(nr_args, args...) MAP_ARGS(nr_args, __DECLARE_ARGS, args)
+#define UNPACK_ARGS(nr_args, args...) MAP_ARGS(nr_args, __UNPACK_ARGS, args)
+
+#define __KVM_SYSCALL_ERROR(_name, _ret) \
+	"%s failed, rc: %i errno: %i (%s)", (_name), (_ret), errno, strerror(errno)
+
+/* Define a kvm_<syscall>() API to assert success. */
+#define __KVM_SYSCALL_DEFINE(name, nr_args, args...)			\
+static inline void kvm_##name(DECLARE_ARGS(nr_args, args))		\
+{									\
+	int r;								\
+									\
+	r = name(UNPACK_ARGS(nr_args, args));				\
+	TEST_ASSERT(!r, __KVM_SYSCALL_ERROR(#name, r));			\
+}
+
+/*
+ * Macro to define syscall APIs, either because KVM selftests doesn't link to
+ * the standard library, e.g. libnuma, or because there is no library that yet
+ * provides the syscall.  These
+ */
+#define KVM_SYSCALL_DEFINE(name, nr_args, args...)			\
+static inline long name(DECLARE_ARGS(nr_args, args))			\
+{									\
+	return syscall(__NR_##name, UNPACK_ARGS(nr_args, args));	\
+}									\
+__KVM_SYSCALL_DEFINE(name, nr_args, args)
+
+/*
+ * Special case mmap(), as KVM selftest rarely/never specific an address,
+ * rarely specify an offset, and because the unique return code requires
+ * special handling anyways.
+ */
+static inline void *__kvm_mmap(size_t size, int prot, int flags, int fd,
+			       off_t offset)
+{
+	void *mem;
+
+	mem = mmap(NULL, size, prot, flags, fd, offset);
+	TEST_ASSERT(mem != MAP_FAILED, __KVM_SYSCALL_ERROR("mmap()",
+		    (int)(unsigned long)MAP_FAILED));
+	return mem;
+}
+
+static inline void *kvm_mmap(size_t size, int prot, int flags, int fd)
+{
+	return __kvm_mmap(size, prot, flags, fd, 0);
+}
+
+static inline int kvm_dup(int fd)
+{
+	int new_fd = dup(fd);
+
+	TEST_ASSERT(new_fd >= 0, __KVM_SYSCALL_ERROR("dup()", new_fd));
+	return new_fd;
+}
+
+__KVM_SYSCALL_DEFINE(munmap, 2, void *, mem, size_t, size);
+__KVM_SYSCALL_DEFINE(close, 1, int, fd);
+__KVM_SYSCALL_DEFINE(fallocate, 4, int, fd, int, mode, loff_t, offset, loff_t, len);
+__KVM_SYSCALL_DEFINE(ftruncate, 2, unsigned int, fd, off_t, length);
+
+#endif /* SELFTEST_KVM_SYSCALLS_H */
diff --git a/tools/testing/selftests/kvm/include/kvm_test_harness.h b/tools/testing/selftests/kvm/include/kvm_test_harness.h
new file mode 100644
index 000000000000..8f7c6858e8e2
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/kvm_test_harness.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Macros for defining a KVM test
+ *
+ * Copyright (C) 2022, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_TEST_HARNESS_H
+#define SELFTEST_KVM_TEST_HARNESS_H
+
+#include "kselftest_harness.h"
+
+#define KVM_ONE_VCPU_TEST_SUITE(name)					\
+	FIXTURE(name) {							\
+		struct kvm_vcpu *vcpu;					\
+	};								\
+									\
+	FIXTURE_SETUP(name) {						\
+		(void)vm_create_with_one_vcpu(&self->vcpu, NULL);	\
+	}								\
+									\
+	FIXTURE_TEARDOWN(name) {					\
+		kvm_vm_free(self->vcpu->vm);				\
+	}
+
+#define KVM_ONE_VCPU_TEST(suite, test, guestcode)			\
+static void __suite##_##test(struct kvm_vcpu *vcpu);			\
+									\
+TEST_F(suite, test)							\
+{									\
+	vcpu_arch_set_entry_point(self->vcpu, guestcode);		\
+	__suite##_##test(self->vcpu);					\
+}									\
+static void __suite##_##test(struct kvm_vcpu *vcpu)
+
+#endif /* SELFTEST_KVM_TEST_HARNESS_H */
diff --git a/tools/testing/selftests/kvm/include/kvm_util.h b/tools/testing/selftests/kvm/include/kvm_util.h
new file mode 100644
index 000000000000..81f4355ff28a
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/kvm_util.h
@@ -0,0 +1,1278 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+#ifndef SELFTEST_KVM_UTIL_H
+#define SELFTEST_KVM_UTIL_H
+
+#include "test_util.h"
+
+#include <linux/compiler.h>
+#include "linux/hashtable.h"
+#include "linux/list.h"
+#include <linux/kernel.h>
+#include <linux/kvm.h>
+#include "linux/rbtree.h"
+#include <linux/types.h>
+
+#include <asm/atomic.h>
+#include <asm/kvm.h>
+
+#include <sys/eventfd.h>
+#include <sys/ioctl.h>
+
+#include <pthread.h>
+
+#include "kvm_syscalls.h"
+#include "kvm_util_arch.h"
+#include "kvm_util_types.h"
+#include "sparsebit.h"
+
+#define KVM_DEV_PATH "/dev/kvm"
+#define KVM_MAX_VCPUS 512
+
+#define NSEC_PER_SEC 1000000000L
+
+struct userspace_mem_region {
+	struct kvm_userspace_memory_region2 region;
+	struct sparsebit *unused_phy_pages;
+	struct sparsebit *protected_phy_pages;
+	int fd;
+	off_t offset;
+	enum vm_mem_backing_src_type backing_src_type;
+	void *host_mem;
+	void *host_alias;
+	void *mmap_start;
+	void *mmap_alias;
+	size_t mmap_size;
+	struct rb_node gpa_node;
+	struct rb_node hva_node;
+	struct hlist_node slot_node;
+};
+
+struct kvm_binary_stats {
+	int fd;
+	struct kvm_stats_header header;
+	struct kvm_stats_desc *desc;
+};
+
+struct kvm_vcpu {
+	struct list_head list;
+	uint32_t id;
+	int fd;
+	struct kvm_vm *vm;
+	struct kvm_run *run;
+#ifdef __x86_64__
+	struct kvm_cpuid2 *cpuid;
+#endif
+#ifdef __aarch64__
+	struct kvm_vcpu_init init;
+#endif
+	struct kvm_binary_stats stats;
+	struct kvm_dirty_gfn *dirty_gfns;
+	uint32_t fetch_index;
+	uint32_t dirty_gfns_count;
+};
+
+struct userspace_mem_regions {
+	struct rb_root gpa_tree;
+	struct rb_root hva_tree;
+	DECLARE_HASHTABLE(slot_hash, 9);
+};
+
+enum kvm_mem_region_type {
+	MEM_REGION_CODE,
+	MEM_REGION_DATA,
+	MEM_REGION_PT,
+	MEM_REGION_TEST_DATA,
+	NR_MEM_REGIONS,
+};
+
+struct kvm_vm {
+	int mode;
+	unsigned long type;
+	int kvm_fd;
+	int fd;
+	unsigned int pgtable_levels;
+	unsigned int page_size;
+	unsigned int page_shift;
+	unsigned int pa_bits;
+	unsigned int va_bits;
+	uint64_t max_gfn;
+	struct list_head vcpus;
+	struct userspace_mem_regions regions;
+	struct sparsebit *vpages_valid;
+	struct sparsebit *vpages_mapped;
+	bool has_irqchip;
+	bool pgd_created;
+	vm_paddr_t ucall_mmio_addr;
+	vm_paddr_t pgd;
+	vm_vaddr_t handlers;
+	uint32_t dirty_ring_size;
+	uint64_t gpa_tag_mask;
+
+	struct kvm_vm_arch arch;
+
+	struct kvm_binary_stats stats;
+
+	/*
+	 * KVM region slots. These are the default memslots used by page
+	 * allocators, e.g., lib/elf uses the memslots[MEM_REGION_CODE]
+	 * memslot.
+	 */
+	uint32_t memslots[NR_MEM_REGIONS];
+};
+
+struct vcpu_reg_sublist {
+	const char *name;
+	long capability;
+	int feature;
+	int feature_type;
+	bool finalize;
+	__u64 *regs;
+	__u64 regs_n;
+	__u64 *rejects_set;
+	__u64 rejects_set_n;
+	__u64 *skips_set;
+	__u64 skips_set_n;
+};
+
+struct vcpu_reg_list {
+	char *name;
+	struct vcpu_reg_sublist sublists[];
+};
+
+#define for_each_sublist(c, s)		\
+	for ((s) = &(c)->sublists[0]; (s)->regs; ++(s))
+
+#define kvm_for_each_vcpu(vm, i, vcpu)			\
+	for ((i) = 0; (i) <= (vm)->last_vcpu_id; (i)++)	\
+		if (!((vcpu) = vm->vcpus[i]))		\
+			continue;			\
+		else
+
+struct userspace_mem_region *
+memslot2region(struct kvm_vm *vm, uint32_t memslot);
+
+static inline struct userspace_mem_region *vm_get_mem_region(struct kvm_vm *vm,
+							     enum kvm_mem_region_type type)
+{
+	assert(type < NR_MEM_REGIONS);
+	return memslot2region(vm, vm->memslots[type]);
+}
+
+/* Minimum allocated guest virtual and physical addresses */
+#define KVM_UTIL_MIN_VADDR		0x2000
+#define KVM_GUEST_PAGE_TABLE_MIN_PADDR	0x180000
+
+#define DEFAULT_GUEST_STACK_VADDR_MIN	0xab6000
+#define DEFAULT_STACK_PGS		5
+
+enum vm_guest_mode {
+	VM_MODE_P52V48_4K,
+	VM_MODE_P52V48_16K,
+	VM_MODE_P52V48_64K,
+	VM_MODE_P48V48_4K,
+	VM_MODE_P48V48_16K,
+	VM_MODE_P48V48_64K,
+	VM_MODE_P40V48_4K,
+	VM_MODE_P40V48_16K,
+	VM_MODE_P40V48_64K,
+	VM_MODE_PXXVYY_4K,	/* For 48-bit or 57-bit VA, depending on host support */
+	VM_MODE_P47V64_4K,
+	VM_MODE_P44V64_4K,
+	VM_MODE_P36V48_4K,
+	VM_MODE_P36V48_16K,
+	VM_MODE_P36V48_64K,
+	VM_MODE_P47V47_16K,
+	VM_MODE_P36V47_16K,
+	NUM_VM_MODES,
+};
+
+struct vm_shape {
+	uint32_t type;
+	uint8_t  mode;
+	uint8_t  pad0;
+	uint16_t pad1;
+};
+
+kvm_static_assert(sizeof(struct vm_shape) == sizeof(uint64_t));
+
+#define VM_TYPE_DEFAULT			0
+
+#define VM_SHAPE(__mode)			\
+({						\
+	struct vm_shape shape = {		\
+		.mode = (__mode),		\
+		.type = VM_TYPE_DEFAULT		\
+	};					\
+						\
+	shape;					\
+})
+
+#if defined(__aarch64__)
+
+extern enum vm_guest_mode vm_mode_default;
+
+#define VM_MODE_DEFAULT			vm_mode_default
+#define MIN_PAGE_SHIFT			12U
+#define ptes_per_page(page_size)	((page_size) / 8)
+
+#elif defined(__x86_64__)
+
+#define VM_MODE_DEFAULT			VM_MODE_PXXVYY_4K
+#define MIN_PAGE_SHIFT			12U
+#define ptes_per_page(page_size)	((page_size) / 8)
+
+#elif defined(__s390x__)
+
+#define VM_MODE_DEFAULT			VM_MODE_P44V64_4K
+#define MIN_PAGE_SHIFT			12U
+#define ptes_per_page(page_size)	((page_size) / 16)
+
+#elif defined(__riscv)
+
+#if __riscv_xlen == 32
+#error "RISC-V 32-bit kvm selftests not supported"
+#endif
+
+#define VM_MODE_DEFAULT			VM_MODE_P40V48_4K
+#define MIN_PAGE_SHIFT			12U
+#define ptes_per_page(page_size)	((page_size) / 8)
+
+#elif defined(__loongarch__)
+#define VM_MODE_DEFAULT			VM_MODE_P47V47_16K
+#define MIN_PAGE_SHIFT			12U
+#define ptes_per_page(page_size)	((page_size) / 8)
+
+#endif
+
+#define VM_SHAPE_DEFAULT	VM_SHAPE(VM_MODE_DEFAULT)
+
+#define MIN_PAGE_SIZE		(1U << MIN_PAGE_SHIFT)
+#define PTES_PER_MIN_PAGE	ptes_per_page(MIN_PAGE_SIZE)
+
+struct vm_guest_mode_params {
+	unsigned int pa_bits;
+	unsigned int va_bits;
+	unsigned int page_size;
+	unsigned int page_shift;
+};
+extern const struct vm_guest_mode_params vm_guest_mode_params[];
+
+int __open_path_or_exit(const char *path, int flags, const char *enoent_help);
+int open_path_or_exit(const char *path, int flags);
+int open_kvm_dev_path_or_exit(void);
+
+int kvm_get_module_param_integer(const char *module_name, const char *param);
+bool kvm_get_module_param_bool(const char *module_name, const char *param);
+
+static inline bool get_kvm_param_bool(const char *param)
+{
+	return kvm_get_module_param_bool("kvm", param);
+}
+
+static inline int get_kvm_param_integer(const char *param)
+{
+	return kvm_get_module_param_integer("kvm", param);
+}
+
+unsigned int kvm_check_cap(long cap);
+
+static inline bool kvm_has_cap(long cap)
+{
+	return kvm_check_cap(cap);
+}
+
+/*
+ * Use the "inner", double-underscore macro when reporting errors from within
+ * other macros so that the name of ioctl() and not its literal numeric value
+ * is printed on error.  The "outer" macro is strongly preferred when reporting
+ * errors "directly", i.e. without an additional layer of macros, as it reduces
+ * the probability of passing in the wrong string.
+ */
+#define __KVM_IOCTL_ERROR(_name, _ret)	__KVM_SYSCALL_ERROR(_name, _ret)
+#define KVM_IOCTL_ERROR(_ioctl, _ret) __KVM_IOCTL_ERROR(#_ioctl, _ret)
+
+#define kvm_do_ioctl(fd, cmd, arg)						\
+({										\
+	kvm_static_assert(!_IOC_SIZE(cmd) || sizeof(*arg) == _IOC_SIZE(cmd));	\
+	ioctl(fd, cmd, arg);							\
+})
+
+#define __kvm_ioctl(kvm_fd, cmd, arg)				\
+	kvm_do_ioctl(kvm_fd, cmd, arg)
+
+#define kvm_ioctl(kvm_fd, cmd, arg)				\
+({								\
+	int ret = __kvm_ioctl(kvm_fd, cmd, arg);		\
+								\
+	TEST_ASSERT(!ret, __KVM_IOCTL_ERROR(#cmd, ret));	\
+})
+
+static __always_inline void static_assert_is_vm(struct kvm_vm *vm) { }
+
+#define __vm_ioctl(vm, cmd, arg)				\
+({								\
+	static_assert_is_vm(vm);				\
+	kvm_do_ioctl((vm)->fd, cmd, arg);			\
+})
+
+/*
+ * Assert that a VM or vCPU ioctl() succeeded, with extra magic to detect if
+ * the ioctl() failed because KVM killed/bugged the VM.  To detect a dead VM,
+ * probe KVM_CAP_USER_MEMORY, which (a) has been supported by KVM since before
+ * selftests existed and (b) should never outright fail, i.e. is supposed to
+ * return 0 or 1.  If KVM kills a VM, KVM returns -EIO for all ioctl()s for the
+ * VM and its vCPUs, including KVM_CHECK_EXTENSION.
+ */
+#define __TEST_ASSERT_VM_VCPU_IOCTL(cond, name, ret, vm)				\
+do {											\
+	int __errno = errno;								\
+											\
+	static_assert_is_vm(vm);							\
+											\
+	if (cond)									\
+		break;									\
+											\
+	if (errno == EIO &&								\
+	    __vm_ioctl(vm, KVM_CHECK_EXTENSION, (void *)KVM_CAP_USER_MEMORY) < 0) {	\
+		TEST_ASSERT(errno == EIO, "KVM killed the VM, should return -EIO");	\
+		TEST_FAIL("KVM killed/bugged the VM, check the kernel log for clues");	\
+	}										\
+	errno = __errno;								\
+	TEST_ASSERT(cond, __KVM_IOCTL_ERROR(name, ret));				\
+} while (0)
+
+#define TEST_ASSERT_VM_VCPU_IOCTL(cond, cmd, ret, vm)		\
+	__TEST_ASSERT_VM_VCPU_IOCTL(cond, #cmd, ret, vm)
+
+#define vm_ioctl(vm, cmd, arg)					\
+({								\
+	int ret = __vm_ioctl(vm, cmd, arg);			\
+								\
+	__TEST_ASSERT_VM_VCPU_IOCTL(!ret, #cmd, ret, vm);		\
+})
+
+static __always_inline void static_assert_is_vcpu(struct kvm_vcpu *vcpu) { }
+
+#define __vcpu_ioctl(vcpu, cmd, arg)				\
+({								\
+	static_assert_is_vcpu(vcpu);				\
+	kvm_do_ioctl((vcpu)->fd, cmd, arg);			\
+})
+
+#define vcpu_ioctl(vcpu, cmd, arg)				\
+({								\
+	int ret = __vcpu_ioctl(vcpu, cmd, arg);			\
+								\
+	__TEST_ASSERT_VM_VCPU_IOCTL(!ret, #cmd, ret, (vcpu)->vm);	\
+})
+
+/*
+ * Looks up and returns the value corresponding to the capability
+ * (KVM_CAP_*) given by cap.
+ */
+static inline int vm_check_cap(struct kvm_vm *vm, long cap)
+{
+	int ret =  __vm_ioctl(vm, KVM_CHECK_EXTENSION, (void *)cap);
+
+	TEST_ASSERT_VM_VCPU_IOCTL(ret >= 0, KVM_CHECK_EXTENSION, ret, vm);
+	return ret;
+}
+
+static inline int __vm_enable_cap(struct kvm_vm *vm, uint32_t cap, uint64_t arg0)
+{
+	struct kvm_enable_cap enable_cap = { .cap = cap, .args = { arg0 } };
+
+	return __vm_ioctl(vm, KVM_ENABLE_CAP, &enable_cap);
+}
+static inline void vm_enable_cap(struct kvm_vm *vm, uint32_t cap, uint64_t arg0)
+{
+	struct kvm_enable_cap enable_cap = { .cap = cap, .args = { arg0 } };
+
+	vm_ioctl(vm, KVM_ENABLE_CAP, &enable_cap);
+}
+
+static inline void vm_set_memory_attributes(struct kvm_vm *vm, uint64_t gpa,
+					    uint64_t size, uint64_t attributes)
+{
+	struct kvm_memory_attributes attr = {
+		.attributes = attributes,
+		.address = gpa,
+		.size = size,
+		.flags = 0,
+	};
+
+	/*
+	 * KVM_SET_MEMORY_ATTRIBUTES overwrites _all_ attributes.  These flows
+	 * need significant enhancements to support multiple attributes.
+	 */
+	TEST_ASSERT(!attributes || attributes == KVM_MEMORY_ATTRIBUTE_PRIVATE,
+		    "Update me to support multiple attributes!");
+
+	vm_ioctl(vm, KVM_SET_MEMORY_ATTRIBUTES, &attr);
+}
+
+
+static inline void vm_mem_set_private(struct kvm_vm *vm, uint64_t gpa,
+				      uint64_t size)
+{
+	vm_set_memory_attributes(vm, gpa, size, KVM_MEMORY_ATTRIBUTE_PRIVATE);
+}
+
+static inline void vm_mem_set_shared(struct kvm_vm *vm, uint64_t gpa,
+				     uint64_t size)
+{
+	vm_set_memory_attributes(vm, gpa, size, 0);
+}
+
+void vm_guest_mem_fallocate(struct kvm_vm *vm, uint64_t gpa, uint64_t size,
+			    bool punch_hole);
+
+static inline void vm_guest_mem_punch_hole(struct kvm_vm *vm, uint64_t gpa,
+					   uint64_t size)
+{
+	vm_guest_mem_fallocate(vm, gpa, size, true);
+}
+
+static inline void vm_guest_mem_allocate(struct kvm_vm *vm, uint64_t gpa,
+					 uint64_t size)
+{
+	vm_guest_mem_fallocate(vm, gpa, size, false);
+}
+
+void vm_enable_dirty_ring(struct kvm_vm *vm, uint32_t ring_size);
+const char *vm_guest_mode_string(uint32_t i);
+
+void kvm_vm_free(struct kvm_vm *vmp);
+void kvm_vm_restart(struct kvm_vm *vmp);
+void kvm_vm_release(struct kvm_vm *vmp);
+void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename);
+int kvm_memfd_alloc(size_t size, bool hugepages);
+
+void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
+
+static inline void kvm_vm_get_dirty_log(struct kvm_vm *vm, int slot, void *log)
+{
+	struct kvm_dirty_log args = { .dirty_bitmap = log, .slot = slot };
+
+	vm_ioctl(vm, KVM_GET_DIRTY_LOG, &args);
+}
+
+static inline void kvm_vm_clear_dirty_log(struct kvm_vm *vm, int slot, void *log,
+					  uint64_t first_page, uint32_t num_pages)
+{
+	struct kvm_clear_dirty_log args = {
+		.dirty_bitmap = log,
+		.slot = slot,
+		.first_page = first_page,
+		.num_pages = num_pages
+	};
+
+	vm_ioctl(vm, KVM_CLEAR_DIRTY_LOG, &args);
+}
+
+static inline uint32_t kvm_vm_reset_dirty_ring(struct kvm_vm *vm)
+{
+	return __vm_ioctl(vm, KVM_RESET_DIRTY_RINGS, NULL);
+}
+
+static inline void kvm_vm_register_coalesced_io(struct kvm_vm *vm,
+						uint64_t address,
+						uint64_t size, bool pio)
+{
+	struct kvm_coalesced_mmio_zone zone = {
+		.addr = address,
+		.size = size,
+		.pio  = pio,
+	};
+
+	vm_ioctl(vm, KVM_REGISTER_COALESCED_MMIO, &zone);
+}
+
+static inline void kvm_vm_unregister_coalesced_io(struct kvm_vm *vm,
+						  uint64_t address,
+						  uint64_t size, bool pio)
+{
+	struct kvm_coalesced_mmio_zone zone = {
+		.addr = address,
+		.size = size,
+		.pio  = pio,
+	};
+
+	vm_ioctl(vm, KVM_UNREGISTER_COALESCED_MMIO, &zone);
+}
+
+static inline int vm_get_stats_fd(struct kvm_vm *vm)
+{
+	int fd = __vm_ioctl(vm, KVM_GET_STATS_FD, NULL);
+
+	TEST_ASSERT_VM_VCPU_IOCTL(fd >= 0, KVM_GET_STATS_FD, fd, vm);
+	return fd;
+}
+
+static inline int __kvm_irqfd(struct kvm_vm *vm, uint32_t gsi, int eventfd,
+			      uint32_t flags)
+{
+	struct kvm_irqfd irqfd = {
+		.fd = eventfd,
+		.gsi = gsi,
+		.flags = flags,
+		.resamplefd = -1,
+	};
+
+	return __vm_ioctl(vm, KVM_IRQFD, &irqfd);
+}
+
+static inline void kvm_irqfd(struct kvm_vm *vm, uint32_t gsi, int eventfd,
+			      uint32_t flags)
+{
+	int ret = __kvm_irqfd(vm, gsi, eventfd, flags);
+
+	TEST_ASSERT_VM_VCPU_IOCTL(!ret, KVM_IRQFD, ret, vm);
+}
+
+static inline void kvm_assign_irqfd(struct kvm_vm *vm, uint32_t gsi, int eventfd)
+{
+	kvm_irqfd(vm, gsi, eventfd, 0);
+}
+
+static inline void kvm_deassign_irqfd(struct kvm_vm *vm, uint32_t gsi, int eventfd)
+{
+	kvm_irqfd(vm, gsi, eventfd, KVM_IRQFD_FLAG_DEASSIGN);
+}
+
+static inline int kvm_new_eventfd(void)
+{
+	int fd = eventfd(0, 0);
+
+	TEST_ASSERT(fd >= 0, __KVM_SYSCALL_ERROR("eventfd()", fd));
+	return fd;
+}
+
+static inline void read_stats_header(int stats_fd, struct kvm_stats_header *header)
+{
+	ssize_t ret;
+
+	ret = pread(stats_fd, header, sizeof(*header), 0);
+	TEST_ASSERT(ret == sizeof(*header),
+		    "Failed to read '%lu' header bytes, ret = '%ld'",
+		    sizeof(*header), ret);
+}
+
+struct kvm_stats_desc *read_stats_descriptors(int stats_fd,
+					      struct kvm_stats_header *header);
+
+static inline ssize_t get_stats_descriptor_size(struct kvm_stats_header *header)
+{
+	 /*
+	  * The base size of the descriptor is defined by KVM's ABI, but the
+	  * size of the name field is variable, as far as KVM's ABI is
+	  * concerned. For a given instance of KVM, the name field is the same
+	  * size for all stats and is provided in the overall stats header.
+	  */
+	return sizeof(struct kvm_stats_desc) + header->name_size;
+}
+
+static inline struct kvm_stats_desc *get_stats_descriptor(struct kvm_stats_desc *stats,
+							  int index,
+							  struct kvm_stats_header *header)
+{
+	/*
+	 * Note, size_desc includes the size of the name field, which is
+	 * variable. i.e. this is NOT equivalent to &stats_desc[i].
+	 */
+	return (void *)stats + index * get_stats_descriptor_size(header);
+}
+
+void read_stat_data(int stats_fd, struct kvm_stats_header *header,
+		    struct kvm_stats_desc *desc, uint64_t *data,
+		    size_t max_elements);
+
+void kvm_get_stat(struct kvm_binary_stats *stats, const char *name,
+		  uint64_t *data, size_t max_elements);
+
+#define __get_stat(stats, stat)							\
+({										\
+	uint64_t data;								\
+										\
+	kvm_get_stat(stats, #stat, &data, 1);					\
+	data;									\
+})
+
+#define vm_get_stat(vm, stat) __get_stat(&(vm)->stats, stat)
+#define vcpu_get_stat(vcpu, stat) __get_stat(&(vcpu)->stats, stat)
+
+static inline bool read_smt_control(char *buf, size_t buf_size)
+{
+	FILE *f = fopen("/sys/devices/system/cpu/smt/control", "r");
+	bool ret;
+
+	if (!f)
+		return false;
+
+	ret = fread(buf, sizeof(*buf), buf_size, f) > 0;
+	fclose(f);
+
+	return ret;
+}
+
+static inline bool is_smt_possible(void)
+{
+	char buf[16];
+
+	if (read_smt_control(buf, sizeof(buf)) &&
+	    (!strncmp(buf, "forceoff", 8) || !strncmp(buf, "notsupported", 12)))
+		return false;
+
+	return true;
+}
+
+static inline bool is_smt_on(void)
+{
+	char buf[16];
+
+	if (read_smt_control(buf, sizeof(buf)) && !strncmp(buf, "on", 2))
+		return true;
+
+	return false;
+}
+
+void vm_create_irqchip(struct kvm_vm *vm);
+
+static inline int __vm_create_guest_memfd(struct kvm_vm *vm, uint64_t size,
+					uint64_t flags)
+{
+	struct kvm_create_guest_memfd guest_memfd = {
+		.size = size,
+		.flags = flags,
+	};
+
+	return __vm_ioctl(vm, KVM_CREATE_GUEST_MEMFD, &guest_memfd);
+}
+
+static inline int vm_create_guest_memfd(struct kvm_vm *vm, uint64_t size,
+					uint64_t flags)
+{
+	int fd = __vm_create_guest_memfd(vm, size, flags);
+
+	TEST_ASSERT(fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_GUEST_MEMFD, fd));
+	return fd;
+}
+
+void vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+			       uint64_t gpa, uint64_t size, void *hva);
+int __vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				uint64_t gpa, uint64_t size, void *hva);
+void vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				uint64_t gpa, uint64_t size, void *hva,
+				uint32_t guest_memfd, uint64_t guest_memfd_offset);
+int __vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				 uint64_t gpa, uint64_t size, void *hva,
+				 uint32_t guest_memfd, uint64_t guest_memfd_offset);
+
+void vm_userspace_mem_region_add(struct kvm_vm *vm,
+				 enum vm_mem_backing_src_type src_type,
+				 uint64_t gpa, uint32_t slot, uint64_t npages,
+				 uint32_t flags);
+void vm_mem_add(struct kvm_vm *vm, enum vm_mem_backing_src_type src_type,
+		uint64_t gpa, uint32_t slot, uint64_t npages, uint32_t flags,
+		int guest_memfd_fd, uint64_t guest_memfd_offset);
+
+#ifndef vm_arch_has_protected_memory
+static inline bool vm_arch_has_protected_memory(struct kvm_vm *vm)
+{
+	return false;
+}
+#endif
+
+void vm_mem_region_set_flags(struct kvm_vm *vm, uint32_t slot, uint32_t flags);
+void vm_mem_region_reload(struct kvm_vm *vm, uint32_t slot);
+void vm_mem_region_move(struct kvm_vm *vm, uint32_t slot, uint64_t new_gpa);
+void vm_mem_region_delete(struct kvm_vm *vm, uint32_t slot);
+struct kvm_vcpu *__vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id);
+void vm_populate_vaddr_bitmap(struct kvm_vm *vm);
+vm_vaddr_t vm_vaddr_unused_gap(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min);
+vm_vaddr_t vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min);
+vm_vaddr_t __vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min,
+			    enum kvm_mem_region_type type);
+vm_vaddr_t vm_vaddr_alloc_shared(struct kvm_vm *vm, size_t sz,
+				 vm_vaddr_t vaddr_min,
+				 enum kvm_mem_region_type type);
+vm_vaddr_t vm_vaddr_alloc_pages(struct kvm_vm *vm, int nr_pages);
+vm_vaddr_t __vm_vaddr_alloc_page(struct kvm_vm *vm,
+				 enum kvm_mem_region_type type);
+vm_vaddr_t vm_vaddr_alloc_page(struct kvm_vm *vm);
+
+void virt_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
+	      unsigned int npages);
+void *addr_gpa2hva(struct kvm_vm *vm, vm_paddr_t gpa);
+void *addr_gva2hva(struct kvm_vm *vm, vm_vaddr_t gva);
+vm_paddr_t addr_hva2gpa(struct kvm_vm *vm, void *hva);
+void *addr_gpa2alias(struct kvm_vm *vm, vm_paddr_t gpa);
+
+#ifndef vcpu_arch_put_guest
+#define vcpu_arch_put_guest(mem, val) do { (mem) = (val); } while (0)
+#endif
+
+static inline vm_paddr_t vm_untag_gpa(struct kvm_vm *vm, vm_paddr_t gpa)
+{
+	return gpa & ~vm->gpa_tag_mask;
+}
+
+void vcpu_run(struct kvm_vcpu *vcpu);
+int _vcpu_run(struct kvm_vcpu *vcpu);
+
+static inline int __vcpu_run(struct kvm_vcpu *vcpu)
+{
+	return __vcpu_ioctl(vcpu, KVM_RUN, NULL);
+}
+
+void vcpu_run_complete_io(struct kvm_vcpu *vcpu);
+struct kvm_reg_list *vcpu_get_reg_list(struct kvm_vcpu *vcpu);
+
+static inline void vcpu_enable_cap(struct kvm_vcpu *vcpu, uint32_t cap,
+				   uint64_t arg0)
+{
+	struct kvm_enable_cap enable_cap = { .cap = cap, .args = { arg0 } };
+
+	vcpu_ioctl(vcpu, KVM_ENABLE_CAP, &enable_cap);
+}
+
+static inline void vcpu_guest_debug_set(struct kvm_vcpu *vcpu,
+					struct kvm_guest_debug *debug)
+{
+	vcpu_ioctl(vcpu, KVM_SET_GUEST_DEBUG, debug);
+}
+
+static inline void vcpu_mp_state_get(struct kvm_vcpu *vcpu,
+				     struct kvm_mp_state *mp_state)
+{
+	vcpu_ioctl(vcpu, KVM_GET_MP_STATE, mp_state);
+}
+static inline void vcpu_mp_state_set(struct kvm_vcpu *vcpu,
+				     struct kvm_mp_state *mp_state)
+{
+	vcpu_ioctl(vcpu, KVM_SET_MP_STATE, mp_state);
+}
+
+static inline void vcpu_regs_get(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_ioctl(vcpu, KVM_GET_REGS, regs);
+}
+
+static inline void vcpu_regs_set(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
+{
+	vcpu_ioctl(vcpu, KVM_SET_REGS, regs);
+}
+static inline void vcpu_sregs_get(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+	vcpu_ioctl(vcpu, KVM_GET_SREGS, sregs);
+
+}
+static inline void vcpu_sregs_set(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+	vcpu_ioctl(vcpu, KVM_SET_SREGS, sregs);
+}
+static inline int _vcpu_sregs_set(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+{
+	return __vcpu_ioctl(vcpu, KVM_SET_SREGS, sregs);
+}
+static inline void vcpu_fpu_get(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
+{
+	vcpu_ioctl(vcpu, KVM_GET_FPU, fpu);
+}
+static inline void vcpu_fpu_set(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
+{
+	vcpu_ioctl(vcpu, KVM_SET_FPU, fpu);
+}
+
+static inline int __vcpu_get_reg(struct kvm_vcpu *vcpu, uint64_t id, void *addr)
+{
+	struct kvm_one_reg reg = { .id = id, .addr = (uint64_t)addr };
+
+	return __vcpu_ioctl(vcpu, KVM_GET_ONE_REG, &reg);
+}
+static inline int __vcpu_set_reg(struct kvm_vcpu *vcpu, uint64_t id, uint64_t val)
+{
+	struct kvm_one_reg reg = { .id = id, .addr = (uint64_t)&val };
+
+	return __vcpu_ioctl(vcpu, KVM_SET_ONE_REG, &reg);
+}
+static inline uint64_t vcpu_get_reg(struct kvm_vcpu *vcpu, uint64_t id)
+{
+	uint64_t val;
+	struct kvm_one_reg reg = { .id = id, .addr = (uint64_t)&val };
+
+	TEST_ASSERT(KVM_REG_SIZE(id) <= sizeof(val), "Reg %lx too big", id);
+
+	vcpu_ioctl(vcpu, KVM_GET_ONE_REG, &reg);
+	return val;
+}
+static inline void vcpu_set_reg(struct kvm_vcpu *vcpu, uint64_t id, uint64_t val)
+{
+	struct kvm_one_reg reg = { .id = id, .addr = (uint64_t)&val };
+
+	TEST_ASSERT(KVM_REG_SIZE(id) <= sizeof(val), "Reg %lx too big", id);
+
+	vcpu_ioctl(vcpu, KVM_SET_ONE_REG, &reg);
+}
+
+#ifdef __KVM_HAVE_VCPU_EVENTS
+static inline void vcpu_events_get(struct kvm_vcpu *vcpu,
+				   struct kvm_vcpu_events *events)
+{
+	vcpu_ioctl(vcpu, KVM_GET_VCPU_EVENTS, events);
+}
+static inline void vcpu_events_set(struct kvm_vcpu *vcpu,
+				   struct kvm_vcpu_events *events)
+{
+	vcpu_ioctl(vcpu, KVM_SET_VCPU_EVENTS, events);
+}
+#endif
+#ifdef __x86_64__
+static inline void vcpu_nested_state_get(struct kvm_vcpu *vcpu,
+					 struct kvm_nested_state *state)
+{
+	vcpu_ioctl(vcpu, KVM_GET_NESTED_STATE, state);
+}
+static inline int __vcpu_nested_state_set(struct kvm_vcpu *vcpu,
+					  struct kvm_nested_state *state)
+{
+	return __vcpu_ioctl(vcpu, KVM_SET_NESTED_STATE, state);
+}
+
+static inline void vcpu_nested_state_set(struct kvm_vcpu *vcpu,
+					 struct kvm_nested_state *state)
+{
+	vcpu_ioctl(vcpu, KVM_SET_NESTED_STATE, state);
+}
+#endif
+static inline int vcpu_get_stats_fd(struct kvm_vcpu *vcpu)
+{
+	int fd = __vcpu_ioctl(vcpu, KVM_GET_STATS_FD, NULL);
+
+	TEST_ASSERT_VM_VCPU_IOCTL(fd >= 0, KVM_CHECK_EXTENSION, fd, vcpu->vm);
+	return fd;
+}
+
+int __kvm_has_device_attr(int dev_fd, uint32_t group, uint64_t attr);
+
+static inline void kvm_has_device_attr(int dev_fd, uint32_t group, uint64_t attr)
+{
+	int ret = __kvm_has_device_attr(dev_fd, group, attr);
+
+	TEST_ASSERT(!ret, "KVM_HAS_DEVICE_ATTR failed, rc: %i errno: %i", ret, errno);
+}
+
+int __kvm_device_attr_get(int dev_fd, uint32_t group, uint64_t attr, void *val);
+
+static inline void kvm_device_attr_get(int dev_fd, uint32_t group,
+				       uint64_t attr, void *val)
+{
+	int ret = __kvm_device_attr_get(dev_fd, group, attr, val);
+
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_GET_DEVICE_ATTR, ret));
+}
+
+int __kvm_device_attr_set(int dev_fd, uint32_t group, uint64_t attr, void *val);
+
+static inline void kvm_device_attr_set(int dev_fd, uint32_t group,
+				       uint64_t attr, void *val)
+{
+	int ret = __kvm_device_attr_set(dev_fd, group, attr, val);
+
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_SET_DEVICE_ATTR, ret));
+}
+
+static inline int __vcpu_has_device_attr(struct kvm_vcpu *vcpu, uint32_t group,
+					 uint64_t attr)
+{
+	return __kvm_has_device_attr(vcpu->fd, group, attr);
+}
+
+static inline void vcpu_has_device_attr(struct kvm_vcpu *vcpu, uint32_t group,
+					uint64_t attr)
+{
+	kvm_has_device_attr(vcpu->fd, group, attr);
+}
+
+static inline int __vcpu_device_attr_get(struct kvm_vcpu *vcpu, uint32_t group,
+					 uint64_t attr, void *val)
+{
+	return __kvm_device_attr_get(vcpu->fd, group, attr, val);
+}
+
+static inline void vcpu_device_attr_get(struct kvm_vcpu *vcpu, uint32_t group,
+					uint64_t attr, void *val)
+{
+	kvm_device_attr_get(vcpu->fd, group, attr, val);
+}
+
+static inline int __vcpu_device_attr_set(struct kvm_vcpu *vcpu, uint32_t group,
+					 uint64_t attr, void *val)
+{
+	return __kvm_device_attr_set(vcpu->fd, group, attr, val);
+}
+
+static inline void vcpu_device_attr_set(struct kvm_vcpu *vcpu, uint32_t group,
+					uint64_t attr, void *val)
+{
+	kvm_device_attr_set(vcpu->fd, group, attr, val);
+}
+
+int __kvm_test_create_device(struct kvm_vm *vm, uint64_t type);
+int __kvm_create_device(struct kvm_vm *vm, uint64_t type);
+
+static inline int kvm_create_device(struct kvm_vm *vm, uint64_t type)
+{
+	int fd = __kvm_create_device(vm, type);
+
+	TEST_ASSERT(fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_DEVICE, fd));
+	return fd;
+}
+
+void *vcpu_map_dirty_ring(struct kvm_vcpu *vcpu);
+
+/*
+ * VM VCPU Args Set
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   num - number of arguments
+ *   ... - arguments, each of type uint64_t
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Sets the first @num input parameters for the function at @vcpu's entry point,
+ * per the C calling convention of the architecture, to the values given as
+ * variable args. Each of the variable args is expected to be of type uint64_t.
+ * The maximum @num can be is specific to the architecture.
+ */
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...);
+
+void kvm_irq_line(struct kvm_vm *vm, uint32_t irq, int level);
+int _kvm_irq_line(struct kvm_vm *vm, uint32_t irq, int level);
+
+#define KVM_MAX_IRQ_ROUTES		4096
+
+struct kvm_irq_routing *kvm_gsi_routing_create(void);
+void kvm_gsi_routing_irqchip_add(struct kvm_irq_routing *routing,
+		uint32_t gsi, uint32_t pin);
+int _kvm_gsi_routing_write(struct kvm_vm *vm, struct kvm_irq_routing *routing);
+void kvm_gsi_routing_write(struct kvm_vm *vm, struct kvm_irq_routing *routing);
+
+const char *exit_reason_str(unsigned int exit_reason);
+
+vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
+			     uint32_t memslot);
+vm_paddr_t __vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
+				vm_paddr_t paddr_min, uint32_t memslot,
+				bool protected);
+vm_paddr_t vm_alloc_page_table(struct kvm_vm *vm);
+
+static inline vm_paddr_t vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
+					    vm_paddr_t paddr_min, uint32_t memslot)
+{
+	/*
+	 * By default, allocate memory as protected for VMs that support
+	 * protected memory, as the majority of memory for such VMs is
+	 * protected, i.e. using shared memory is effectively opt-in.
+	 */
+	return __vm_phy_pages_alloc(vm, num, paddr_min, memslot,
+				    vm_arch_has_protected_memory(vm));
+}
+
+/*
+ * ____vm_create() does KVM_CREATE_VM and little else.  __vm_create() also
+ * loads the test binary into guest memory and creates an IRQ chip (x86 only).
+ * __vm_create() does NOT create vCPUs, @nr_runnable_vcpus is used purely to
+ * calculate the amount of memory needed for per-vCPU data, e.g. stacks.
+ */
+struct kvm_vm *____vm_create(struct vm_shape shape);
+struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
+			   uint64_t nr_extra_pages);
+
+static inline struct kvm_vm *vm_create_barebones(void)
+{
+	return ____vm_create(VM_SHAPE_DEFAULT);
+}
+
+static inline struct kvm_vm *vm_create_barebones_type(unsigned long type)
+{
+	const struct vm_shape shape = {
+		.mode = VM_MODE_DEFAULT,
+		.type = type,
+	};
+
+	return ____vm_create(shape);
+}
+
+static inline struct kvm_vm *vm_create(uint32_t nr_runnable_vcpus)
+{
+	return __vm_create(VM_SHAPE_DEFAULT, nr_runnable_vcpus, 0);
+}
+
+struct kvm_vm *__vm_create_with_vcpus(struct vm_shape shape, uint32_t nr_vcpus,
+				      uint64_t extra_mem_pages,
+				      void *guest_code, struct kvm_vcpu *vcpus[]);
+
+static inline struct kvm_vm *vm_create_with_vcpus(uint32_t nr_vcpus,
+						  void *guest_code,
+						  struct kvm_vcpu *vcpus[])
+{
+	return __vm_create_with_vcpus(VM_SHAPE_DEFAULT, nr_vcpus, 0,
+				      guest_code, vcpus);
+}
+
+
+struct kvm_vm *__vm_create_shape_with_one_vcpu(struct vm_shape shape,
+					       struct kvm_vcpu **vcpu,
+					       uint64_t extra_mem_pages,
+					       void *guest_code);
+
+/*
+ * Create a VM with a single vCPU with reasonable defaults and @extra_mem_pages
+ * additional pages of guest memory.  Returns the VM and vCPU (via out param).
+ */
+static inline struct kvm_vm *__vm_create_with_one_vcpu(struct kvm_vcpu **vcpu,
+						       uint64_t extra_mem_pages,
+						       void *guest_code)
+{
+	return __vm_create_shape_with_one_vcpu(VM_SHAPE_DEFAULT, vcpu,
+					       extra_mem_pages, guest_code);
+}
+
+static inline struct kvm_vm *vm_create_with_one_vcpu(struct kvm_vcpu **vcpu,
+						     void *guest_code)
+{
+	return __vm_create_with_one_vcpu(vcpu, 0, guest_code);
+}
+
+static inline struct kvm_vm *vm_create_shape_with_one_vcpu(struct vm_shape shape,
+							   struct kvm_vcpu **vcpu,
+							   void *guest_code)
+{
+	return __vm_create_shape_with_one_vcpu(shape, vcpu, 0, guest_code);
+}
+
+struct kvm_vcpu *vm_recreate_with_one_vcpu(struct kvm_vm *vm);
+
+void kvm_set_files_rlimit(uint32_t nr_vcpus);
+
+int __pin_task_to_cpu(pthread_t task, int cpu);
+
+static inline void pin_task_to_cpu(pthread_t task, int cpu)
+{
+	int r;
+
+	r = __pin_task_to_cpu(task, cpu);
+	TEST_ASSERT(!r, "Failed to set thread affinity to pCPU '%u'", cpu);
+}
+
+static inline int pin_task_to_any_cpu(pthread_t task)
+{
+	int cpu = sched_getcpu();
+
+	pin_task_to_cpu(task, cpu);
+	return cpu;
+}
+
+static inline void pin_self_to_cpu(int cpu)
+{
+	pin_task_to_cpu(pthread_self(), cpu);
+}
+
+static inline int pin_self_to_any_cpu(void)
+{
+	return pin_task_to_any_cpu(pthread_self());
+}
+
+void kvm_print_vcpu_pinning_help(void);
+void kvm_parse_vcpu_pinning(const char *pcpus_string, uint32_t vcpu_to_pcpu[],
+			    int nr_vcpus);
+
+unsigned long vm_compute_max_gfn(struct kvm_vm *vm);
+unsigned int vm_calc_num_guest_pages(enum vm_guest_mode mode, size_t size);
+unsigned int vm_num_host_pages(enum vm_guest_mode mode, unsigned int num_guest_pages);
+unsigned int vm_num_guest_pages(enum vm_guest_mode mode, unsigned int num_host_pages);
+static inline unsigned int
+vm_adjust_num_guest_pages(enum vm_guest_mode mode, unsigned int num_guest_pages)
+{
+	unsigned int n;
+	n = vm_num_guest_pages(mode, vm_num_host_pages(mode, num_guest_pages));
+#ifdef __s390x__
+	/* s390 requires 1M aligned guest sizes */
+	n = (n + 255) & ~255;
+#endif
+	return n;
+}
+
+#define sync_global_to_guest(vm, g) ({				\
+	typeof(g) *_p = addr_gva2hva(vm, (vm_vaddr_t)&(g));	\
+	memcpy(_p, &(g), sizeof(g));				\
+})
+
+#define sync_global_from_guest(vm, g) ({			\
+	typeof(g) *_p = addr_gva2hva(vm, (vm_vaddr_t)&(g));	\
+	memcpy(&(g), _p, sizeof(g));				\
+})
+
+/*
+ * Write a global value, but only in the VM's (guest's) domain.  Primarily used
+ * for "globals" that hold per-VM values (VMs always duplicate code and global
+ * data into their own region of physical memory), but can be used anytime it's
+ * undesirable to change the host's copy of the global.
+ */
+#define write_guest_global(vm, g, val) ({			\
+	typeof(g) *_p = addr_gva2hva(vm, (vm_vaddr_t)&(g));	\
+	typeof(g) _val = val;					\
+								\
+	memcpy(_p, &(_val), sizeof(g));				\
+})
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu);
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu,
+		    uint8_t indent);
+
+static inline void vcpu_dump(FILE *stream, struct kvm_vcpu *vcpu,
+			     uint8_t indent)
+{
+	vcpu_arch_dump(stream, vcpu, indent);
+}
+
+/*
+ * Adds a vCPU with reasonable defaults (e.g. a stack)
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   vcpu_id - The id of the VCPU to add to the VM.
+ */
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id);
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code);
+
+static inline struct kvm_vcpu *vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,
+					   void *guest_code)
+{
+	struct kvm_vcpu *vcpu = vm_arch_vcpu_add(vm, vcpu_id);
+
+	vcpu_arch_set_entry_point(vcpu, guest_code);
+
+	return vcpu;
+}
+
+/* Re-create a vCPU after restarting a VM, e.g. for state save/restore tests. */
+struct kvm_vcpu *vm_arch_vcpu_recreate(struct kvm_vm *vm, uint32_t vcpu_id);
+
+static inline struct kvm_vcpu *vm_vcpu_recreate(struct kvm_vm *vm,
+						uint32_t vcpu_id)
+{
+	return vm_arch_vcpu_recreate(vm, vcpu_id);
+}
+
+void vcpu_arch_free(struct kvm_vcpu *vcpu);
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm);
+
+static inline void virt_pgd_alloc(struct kvm_vm *vm)
+{
+	virt_arch_pgd_alloc(vm);
+}
+
+/*
+ * VM Virtual Page Map
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   vaddr - VM Virtual Address
+ *   paddr - VM Physical Address
+ *   memslot - Memory region slot for new virtual translation tables
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Within @vm, creates a virtual translation for the page starting
+ * at @vaddr to the page starting at @paddr.
+ */
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr);
+
+static inline void virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	virt_arch_pg_map(vm, vaddr, paddr);
+	sparsebit_set(vm->vpages_mapped, vaddr >> vm->page_shift);
+}
+
+
+/*
+ * Address Guest Virtual to Guest Physical
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   gva - VM virtual address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent VM physical address
+ *
+ * Returns the VM physical address of the translated VM virtual
+ * address given by @gva.
+ */
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva);
+
+static inline vm_paddr_t addr_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	return addr_arch_gva2gpa(vm, gva);
+}
+
+/*
+ * Virtual Translation Tables Dump
+ *
+ * Input Args:
+ *   stream - Output FILE stream
+ *   vm     - Virtual Machine
+ *   indent - Left margin indent amount
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Dumps to the FILE stream given by @stream, the contents of all the
+ * virtual translation tables for the VM given by @vm.
+ */
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent);
+
+static inline void virt_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	virt_arch_dump(stream, vm, indent);
+}
+
+
+static inline int __vm_disable_nx_huge_pages(struct kvm_vm *vm)
+{
+	return __vm_enable_cap(vm, KVM_CAP_VM_DISABLE_NX_HUGE_PAGES, 0);
+}
+
+/*
+ * Arch hook that is invoked via a constructor, i.e. before exeucting main(),
+ * to allow for arch-specific setup that is common to all tests, e.g. computing
+ * the default guest "mode".
+ */
+void kvm_selftest_arch_init(void);
+
+void kvm_arch_vm_post_create(struct kvm_vm *vm, unsigned int nr_vcpus);
+void kvm_arch_vm_finalize_vcpus(struct kvm_vm *vm);
+void kvm_arch_vm_release(struct kvm_vm *vm);
+
+bool vm_is_gpa_protected(struct kvm_vm *vm, vm_paddr_t paddr);
+
+uint32_t guest_get_vcpuid(void);
+
+bool kvm_arch_has_default_irqchip(void);
+
+#endif /* SELFTEST_KVM_UTIL_H */
diff --git a/tools/testing/selftests/kvm/include/kvm_util_types.h b/tools/testing/selftests/kvm/include/kvm_util_types.h
new file mode 100644
index 000000000000..ec787b97cf18
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/kvm_util_types.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_TYPES_H
+#define SELFTEST_KVM_UTIL_TYPES_H
+
+/*
+ * Provide a version of static_assert() that is guaranteed to have an optional
+ * message param.  _GNU_SOURCE is defined for all KVM selftests, _GNU_SOURCE
+ * implies _ISOC11_SOURCE, and if _ISOC11_SOURCE is defined, glibc #undefs and
+ * #defines static_assert() as a direct alias to _Static_assert() (see
+ * usr/include/assert.h).  Define a custom macro instead of redefining
+ * static_assert() to avoid creating non-deterministic behavior that is
+ * dependent on include order.
+ */
+#define __kvm_static_assert(expr, msg, ...) _Static_assert(expr, msg)
+#define kvm_static_assert(expr, ...) __kvm_static_assert(expr, ##__VA_ARGS__, #expr)
+
+typedef uint64_t vm_paddr_t; /* Virtual Machine (Guest) physical address */
+typedef uint64_t vm_vaddr_t; /* Virtual Machine (Guest) virtual address */
+
+#endif /* SELFTEST_KVM_UTIL_TYPES_H */
diff --git a/tools/testing/selftests/kvm/include/loongarch/arch_timer.h b/tools/testing/selftests/kvm/include/loongarch/arch_timer.h
new file mode 100644
index 000000000000..2ed106b32c81
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/loongarch/arch_timer.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * LoongArch Constant Timer specific interface
+ */
+#ifndef SELFTEST_KVM_ARCH_TIMER_H
+#define SELFTEST_KVM_ARCH_TIMER_H
+
+#include "processor.h"
+
+/* LoongArch timer frequency is constant 100MHZ */
+#define TIMER_FREQ		(100UL << 20)
+#define msec_to_cycles(msec)	(TIMER_FREQ * (unsigned long)(msec) / 1000)
+#define usec_to_cycles(usec)	(TIMER_FREQ * (unsigned long)(usec) / 1000000)
+#define cycles_to_usec(cycles)	((unsigned long)(cycles) * 1000000 / TIMER_FREQ)
+
+static inline unsigned long timer_get_cycles(void)
+{
+	unsigned long val = 0;
+
+	__asm__ __volatile__(
+		"rdtime.d %0, $zero\n\t"
+		: "=r"(val)
+		:
+	);
+
+	return val;
+}
+
+static inline unsigned long timer_get_cfg(void)
+{
+	return csr_read(LOONGARCH_CSR_TCFG);
+}
+
+static inline unsigned long timer_get_val(void)
+{
+	return csr_read(LOONGARCH_CSR_TVAL);
+}
+
+static inline void disable_timer(void)
+{
+	csr_write(0, LOONGARCH_CSR_TCFG);
+}
+
+static inline void timer_irq_enable(void)
+{
+	unsigned long val;
+
+	val = csr_read(LOONGARCH_CSR_ECFG);
+	val |= ECFGF_TIMER;
+	csr_write(val, LOONGARCH_CSR_ECFG);
+}
+
+static inline void timer_irq_disable(void)
+{
+	unsigned long val;
+
+	val = csr_read(LOONGARCH_CSR_ECFG);
+	val &= ~ECFGF_TIMER;
+	csr_write(val, LOONGARCH_CSR_ECFG);
+}
+
+static inline void timer_set_next_cmp_ms(unsigned int msec, bool period)
+{
+	unsigned long val;
+
+	val = msec_to_cycles(msec) & CSR_TCFG_VAL;
+	val |= CSR_TCFG_EN;
+	if (period)
+		val |= CSR_TCFG_PERIOD;
+	csr_write(val, LOONGARCH_CSR_TCFG);
+}
+
+static inline void __delay(uint64_t cycles)
+{
+	uint64_t start = timer_get_cycles();
+
+	while ((timer_get_cycles() - start) < cycles)
+		cpu_relax();
+}
+
+static inline void udelay(unsigned long usec)
+{
+	__delay(usec_to_cycles(usec));
+}
+#endif /* SELFTEST_KVM_ARCH_TIMER_H */
diff --git a/tools/testing/selftests/kvm/include/loongarch/kvm_util_arch.h b/tools/testing/selftests/kvm/include/loongarch/kvm_util_arch.h
new file mode 100644
index 000000000000..e43a57d99b56
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/loongarch/kvm_util_arch.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_ARCH_H
+#define SELFTEST_KVM_UTIL_ARCH_H
+
+struct kvm_vm_arch {};
+
+#endif  // SELFTEST_KVM_UTIL_ARCH_H
diff --git a/tools/testing/selftests/kvm/include/loongarch/processor.h b/tools/testing/selftests/kvm/include/loongarch/processor.h
new file mode 100644
index 000000000000..76840ddda57d
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/loongarch/processor.h
@@ -0,0 +1,220 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#ifndef __ASSEMBLER__
+#include "ucall_common.h"
+
+#else
+/* general registers */
+#define zero				$r0
+#define ra				$r1
+#define tp				$r2
+#define sp				$r3
+#define a0				$r4
+#define a1				$r5
+#define a2				$r6
+#define a3				$r7
+#define a4				$r8
+#define a5				$r9
+#define a6				$r10
+#define a7				$r11
+#define t0				$r12
+#define t1				$r13
+#define t2				$r14
+#define t3				$r15
+#define t4				$r16
+#define t5				$r17
+#define t6				$r18
+#define t7				$r19
+#define t8				$r20
+#define u0				$r21
+#define fp				$r22
+#define s0				$r23
+#define s1				$r24
+#define s2				$r25
+#define s3				$r26
+#define s4				$r27
+#define s5				$r28
+#define s6				$r29
+#define s7				$r30
+#define s8				$r31
+#endif
+
+/*
+ * LoongArch page table entry definition
+ * Original header file arch/loongarch/include/asm/loongarch.h
+ */
+#define _PAGE_VALID_SHIFT		0
+#define _PAGE_DIRTY_SHIFT		1
+#define _PAGE_PLV_SHIFT			2  /* 2~3, two bits */
+#define  PLV_KERN			0
+#define  PLV_USER			3
+#define  PLV_MASK			0x3
+#define _CACHE_SHIFT			4  /* 4~5, two bits */
+#define _PAGE_PRESENT_SHIFT		7
+#define _PAGE_WRITE_SHIFT		8
+
+#define _PAGE_VALID			BIT_ULL(_PAGE_VALID_SHIFT)
+#define _PAGE_PRESENT			BIT_ULL(_PAGE_PRESENT_SHIFT)
+#define _PAGE_WRITE			BIT_ULL(_PAGE_WRITE_SHIFT)
+#define _PAGE_DIRTY			BIT_ULL(_PAGE_DIRTY_SHIFT)
+#define _PAGE_USER			(PLV_USER << _PAGE_PLV_SHIFT)
+#define   __READABLE			(_PAGE_VALID)
+#define   __WRITEABLE			(_PAGE_DIRTY | _PAGE_WRITE)
+/* Coherent Cached */
+#define _CACHE_CC			BIT_ULL(_CACHE_SHIFT)
+#define PS_4K				0x0000000c
+#define PS_16K				0x0000000e
+#define PS_64K				0x00000010
+#define PS_DEFAULT_SIZE			PS_16K
+
+/* LoongArch Basic CSR registers */
+#define LOONGARCH_CSR_CRMD		0x0 /* Current mode info */
+#define  CSR_CRMD_PG_SHIFT		4
+#define  CSR_CRMD_PG			BIT_ULL(CSR_CRMD_PG_SHIFT)
+#define  CSR_CRMD_IE_SHIFT		2
+#define  CSR_CRMD_IE			BIT_ULL(CSR_CRMD_IE_SHIFT)
+#define  CSR_CRMD_PLV_SHIFT		0
+#define  CSR_CRMD_PLV_WIDTH		2
+#define  CSR_CRMD_PLV			(0x3UL << CSR_CRMD_PLV_SHIFT)
+#define  PLV_MASK			0x3
+#define LOONGARCH_CSR_PRMD		0x1
+#define LOONGARCH_CSR_EUEN		0x2
+#define LOONGARCH_CSR_ECFG		0x4
+#define  ECFGB_TIMER			11
+#define  ECFGF_TIMER			(BIT_ULL(ECFGB_TIMER))
+#define LOONGARCH_CSR_ESTAT		0x5  /* Exception status */
+#define  CSR_ESTAT_EXC_SHIFT		16
+#define  CSR_ESTAT_EXC_WIDTH		6
+#define  CSR_ESTAT_EXC			(0x3f << CSR_ESTAT_EXC_SHIFT)
+#define    EXCCODE_INT			0    /* Interrupt */
+#define      INT_TI			11   /* Timer interrupt*/
+#define LOONGARCH_CSR_ERA		0x6  /* ERA */
+#define LOONGARCH_CSR_BADV		0x7  /* Bad virtual address */
+#define LOONGARCH_CSR_EENTRY		0xc
+#define LOONGARCH_CSR_TLBIDX		0x10 /* TLB Index, EHINV, PageSize */
+#define  CSR_TLBIDX_PS_SHIFT		24
+#define  CSR_TLBIDX_PS_WIDTH		6
+#define  CSR_TLBIDX_PS			(0x3fUL << CSR_TLBIDX_PS_SHIFT)
+#define  CSR_TLBIDX_SIZEM		0x3f000000
+#define  CSR_TLBIDX_SIZE		CSR_TLBIDX_PS_SHIFT
+#define LOONGARCH_CSR_ASID		0x18 /* ASID */
+#define LOONGARCH_CSR_PGDL		0x19
+#define LOONGARCH_CSR_PGDH		0x1a
+/* Page table base */
+#define LOONGARCH_CSR_PGD		0x1b
+#define LOONGARCH_CSR_PWCTL0		0x1c
+#define LOONGARCH_CSR_PWCTL1		0x1d
+#define LOONGARCH_CSR_STLBPGSIZE	0x1e
+#define LOONGARCH_CSR_CPUID		0x20
+#define LOONGARCH_CSR_KS0		0x30
+#define LOONGARCH_CSR_KS1		0x31
+#define LOONGARCH_CSR_TMID		0x40
+#define LOONGARCH_CSR_TCFG		0x41
+#define  CSR_TCFG_VAL			(BIT_ULL(48) - BIT_ULL(2))
+#define  CSR_TCFG_PERIOD_SHIFT		1
+#define  CSR_TCFG_PERIOD		(0x1UL << CSR_TCFG_PERIOD_SHIFT)
+#define  CSR_TCFG_EN			(0x1UL)
+#define LOONGARCH_CSR_TVAL		0x42
+#define LOONGARCH_CSR_TINTCLR		0x44 /* Timer interrupt clear */
+#define  CSR_TINTCLR_TI_SHIFT		0
+#define  CSR_TINTCLR_TI			(1 << CSR_TINTCLR_TI_SHIFT)
+/* TLB refill exception entry */
+#define LOONGARCH_CSR_TLBRENTRY		0x88
+#define LOONGARCH_CSR_TLBRSAVE		0x8b
+#define LOONGARCH_CSR_TLBREHI		0x8e
+#define  CSR_TLBREHI_PS_SHIFT		0
+#define  CSR_TLBREHI_PS			(0x3fUL << CSR_TLBREHI_PS_SHIFT)
+
+#define csr_read(csr)				\
+({						\
+	register unsigned long __v;		\
+	__asm__ __volatile__(			\
+		"csrrd %[val], %[reg]\n\t"	\
+		: [val] "=r" (__v)		\
+		: [reg] "i" (csr)		\
+		: "memory");			\
+	__v;					\
+})
+
+#define csr_write(v, csr)			\
+({						\
+	register unsigned long __v = v;		\
+	__asm__ __volatile__ (			\
+		"csrwr %[val], %[reg]\n\t"	\
+		: [val] "+r" (__v)		\
+		: [reg] "i" (csr)		\
+		: "memory");			\
+	__v;					\
+})
+
+#define EXREGS_GPRS			(32)
+
+#ifndef __ASSEMBLER__
+void handle_tlb_refill(void);
+void handle_exception(void);
+
+struct ex_regs {
+	unsigned long regs[EXREGS_GPRS];
+	unsigned long pc;
+	unsigned long estat;
+	unsigned long badv;
+	unsigned long prmd;
+};
+
+#define PC_OFFSET_EXREGS		offsetof(struct ex_regs, pc)
+#define ESTAT_OFFSET_EXREGS		offsetof(struct ex_regs, estat)
+#define BADV_OFFSET_EXREGS		offsetof(struct ex_regs, badv)
+#define PRMD_OFFSET_EXREGS		offsetof(struct ex_regs, prmd)
+#define EXREGS_SIZE			sizeof(struct ex_regs)
+
+#define VECTOR_NUM			64
+
+typedef void(*handler_fn)(struct ex_regs *);
+
+struct handlers {
+	handler_fn exception_handlers[VECTOR_NUM];
+};
+
+void vm_init_descriptor_tables(struct kvm_vm *vm);
+void vm_install_exception_handler(struct kvm_vm *vm, int vector, handler_fn handler);
+
+static inline void cpu_relax(void)
+{
+	asm volatile("nop" ::: "memory");
+}
+
+static inline void local_irq_enable(void)
+{
+	unsigned int flags = CSR_CRMD_IE;
+	register unsigned int mask asm("$t0") = CSR_CRMD_IE;
+
+	__asm__ __volatile__(
+		"csrxchg %[val], %[mask], %[reg]\n\t"
+		: [val] "+r" (flags)
+		: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
+		: "memory");
+}
+
+static inline void local_irq_disable(void)
+{
+	unsigned int flags = 0;
+	register unsigned int mask asm("$t0") = CSR_CRMD_IE;
+
+	__asm__ __volatile__(
+		"csrxchg %[val], %[mask], %[reg]\n\t"
+		: [val] "+r" (flags)
+		: [mask] "r" (mask), [reg] "i" (LOONGARCH_CSR_CRMD)
+		: "memory");
+}
+#else
+#define PC_OFFSET_EXREGS		((EXREGS_GPRS + 0) * 8)
+#define ESTAT_OFFSET_EXREGS		((EXREGS_GPRS + 1) * 8)
+#define BADV_OFFSET_EXREGS		((EXREGS_GPRS + 2) * 8)
+#define PRMD_OFFSET_EXREGS		((EXREGS_GPRS + 3) * 8)
+#define EXREGS_SIZE			((EXREGS_GPRS + 4) * 8)
+#endif
+
+#endif /* SELFTEST_KVM_PROCESSOR_H */
diff --git a/tools/testing/selftests/kvm/include/loongarch/ucall.h b/tools/testing/selftests/kvm/include/loongarch/ucall.h
new file mode 100644
index 000000000000..4ec801f37f00
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/loongarch/ucall.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UCALL_H
+#define SELFTEST_KVM_UCALL_H
+
+#include "kvm_util.h"
+
+#define UCALL_EXIT_REASON       KVM_EXIT_MMIO
+
+/*
+ * ucall_exit_mmio_addr holds per-VM values (global data is duplicated by each
+ * VM), it must not be accessed from host code.
+ */
+extern vm_vaddr_t *ucall_exit_mmio_addr;
+
+static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
+{
+	WRITE_ONCE(*ucall_exit_mmio_addr, uc);
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/lru_gen_util.h b/tools/testing/selftests/kvm/include/lru_gen_util.h
new file mode 100644
index 000000000000..d32ff5d8ffd0
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/lru_gen_util.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Tools for integrating with lru_gen, like parsing the lru_gen debugfs output.
+ *
+ * Copyright (C) 2025, Google LLC.
+ */
+#ifndef SELFTEST_KVM_LRU_GEN_UTIL_H
+#define SELFTEST_KVM_LRU_GEN_UTIL_H
+
+#include <inttypes.h>
+#include <limits.h>
+#include <stdlib.h>
+
+#include "test_util.h"
+
+#define MAX_NR_GENS 16 /* MAX_NR_GENS in include/linux/mmzone.h */
+#define MAX_NR_NODES 4 /* Maximum number of nodes supported by the test */
+
+#define LRU_GEN_DEBUGFS "/sys/kernel/debug/lru_gen"
+#define LRU_GEN_ENABLED_PATH "/sys/kernel/mm/lru_gen/enabled"
+#define LRU_GEN_ENABLED 1
+#define LRU_GEN_MM_WALK 2
+
+struct generation_stats {
+	int gen;
+	long age_ms;
+	long nr_anon;
+	long nr_file;
+};
+
+struct node_stats {
+	int node;
+	int nr_gens; /* Number of populated gens entries. */
+	struct generation_stats gens[MAX_NR_GENS];
+};
+
+struct memcg_stats {
+	unsigned long memcg_id;
+	int nr_nodes; /* Number of populated nodes entries. */
+	struct node_stats nodes[MAX_NR_NODES];
+};
+
+void lru_gen_read_memcg_stats(struct memcg_stats *stats, const char *memcg);
+long lru_gen_sum_memcg_stats(const struct memcg_stats *stats);
+long lru_gen_sum_memcg_stats_for_gen(int gen, const struct memcg_stats *stats);
+void lru_gen_do_aging(struct memcg_stats *stats, const char *memcg);
+int lru_gen_find_generation(const struct memcg_stats *stats,
+			    unsigned long total_pages);
+bool lru_gen_usable(void);
+
+#endif /* SELFTEST_KVM_LRU_GEN_UTIL_H */
diff --git a/tools/testing/selftests/kvm/include/memstress.h b/tools/testing/selftests/kvm/include/memstress.h
new file mode 100644
index 000000000000..9071eb6dea60
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/memstress.h
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * tools/testing/selftests/kvm/include/memstress.h
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_MEMSTRESS_H
+#define SELFTEST_KVM_MEMSTRESS_H
+
+#include <pthread.h>
+
+#include "kvm_util.h"
+
+/* Default guest test virtual memory offset */
+#define DEFAULT_GUEST_TEST_MEM		0xc0000000
+
+#define DEFAULT_PER_VCPU_MEM_SIZE	(1 << 30) /* 1G */
+
+#define MEMSTRESS_MEM_SLOT_INDEX	1
+
+struct memstress_vcpu_args {
+	uint64_t gpa;
+	uint64_t gva;
+	uint64_t pages;
+
+	/* Only used by the host userspace part of the vCPU thread */
+	struct kvm_vcpu *vcpu;
+	int vcpu_idx;
+};
+
+struct memstress_args {
+	struct kvm_vm *vm;
+	/* The starting address and size of the guest test region. */
+	uint64_t gpa;
+	uint64_t size;
+	uint64_t guest_page_size;
+	uint32_t random_seed;
+	uint32_t write_percent;
+
+	/* Run vCPUs in L2 instead of L1, if the architecture supports it. */
+	bool nested;
+	/* Randomize which pages are accessed by the guest. */
+	bool random_access;
+	/* True if all vCPUs are pinned to pCPUs */
+	bool pin_vcpus;
+	/* The vCPU=>pCPU pinning map. Only valid if pin_vcpus is true. */
+	uint32_t vcpu_to_pcpu[KVM_MAX_VCPUS];
+
+ 	/* Test is done, stop running vCPUs. */
+ 	bool stop_vcpus;
+
+	struct memstress_vcpu_args vcpu_args[KVM_MAX_VCPUS];
+};
+
+extern struct memstress_args memstress_args;
+
+struct kvm_vm *memstress_create_vm(enum vm_guest_mode mode, int nr_vcpus,
+				   uint64_t vcpu_memory_bytes, int slots,
+				   enum vm_mem_backing_src_type backing_src,
+				   bool partition_vcpu_memory_access);
+void memstress_destroy_vm(struct kvm_vm *vm);
+
+void memstress_set_write_percent(struct kvm_vm *vm, uint32_t write_percent);
+void memstress_set_random_access(struct kvm_vm *vm, bool random_access);
+
+void memstress_start_vcpu_threads(int vcpus, void (*vcpu_fn)(struct memstress_vcpu_args *));
+void memstress_join_vcpu_threads(int vcpus);
+void memstress_guest_code(uint32_t vcpu_id);
+
+uint64_t memstress_nested_pages(int nr_vcpus);
+void memstress_setup_nested(struct kvm_vm *vm, int nr_vcpus, struct kvm_vcpu *vcpus[]);
+
+void memstress_enable_dirty_logging(struct kvm_vm *vm, int slots);
+void memstress_disable_dirty_logging(struct kvm_vm *vm, int slots);
+void memstress_get_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[], int slots);
+void memstress_clear_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[],
+			       int slots, uint64_t pages_per_slot);
+unsigned long **memstress_alloc_bitmaps(int slots, uint64_t pages_per_slot);
+void memstress_free_bitmaps(unsigned long *bitmaps[], int slots);
+
+#endif /* SELFTEST_KVM_MEMSTRESS_H */
diff --git a/tools/testing/selftests/kvm/include/numaif.h b/tools/testing/selftests/kvm/include/numaif.h
new file mode 100644
index 000000000000..29572a6d789c
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/numaif.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/* Copyright (C) 2020, Google LLC. */
+
+#ifndef SELFTEST_KVM_NUMAIF_H
+#define SELFTEST_KVM_NUMAIF_H
+
+#include <dirent.h>
+
+#include <linux/mempolicy.h>
+
+#include "kvm_syscalls.h"
+
+KVM_SYSCALL_DEFINE(get_mempolicy, 5, int *, policy, const unsigned long *, nmask,
+		   unsigned long, maxnode, void *, addr, int, flags);
+
+KVM_SYSCALL_DEFINE(set_mempolicy, 3, int, mode, const unsigned long *, nmask,
+		   unsigned long, maxnode);
+
+KVM_SYSCALL_DEFINE(set_mempolicy_home_node, 4, unsigned long, start,
+		   unsigned long, len, unsigned long, home_node,
+		   unsigned long, flags);
+
+KVM_SYSCALL_DEFINE(migrate_pages, 4, int, pid, unsigned long, maxnode,
+		   const unsigned long *, frommask, const unsigned long *, tomask);
+
+KVM_SYSCALL_DEFINE(move_pages, 6, int, pid, unsigned long, count, void *, pages,
+		   const int *, nodes, int *, status, int, flags);
+
+KVM_SYSCALL_DEFINE(mbind, 6, void *, addr, unsigned long, size, int, mode,
+		   const unsigned long *, nodemask, unsigned long, maxnode,
+		   unsigned int, flags);
+
+static inline int get_max_numa_node(void)
+{
+	struct dirent *de;
+	int max_node = 0;
+	DIR *d;
+
+	/*
+	 * Assume there's a single node if the kernel doesn't support NUMA,
+	 * or if no nodes are found.
+	 */
+	d = opendir("/sys/devices/system/node");
+	if (!d)
+		return 0;
+
+	while ((de = readdir(d)) != NULL) {
+		int node_id;
+		char *endptr;
+
+		if (strncmp(de->d_name, "node", 4) != 0)
+			continue;
+
+		node_id = strtol(de->d_name + 4, &endptr, 10);
+		if (*endptr != '\0')
+			continue;
+
+		if (node_id > max_node)
+			max_node = node_id;
+	}
+	closedir(d);
+
+	return max_node;
+}
+
+static bool is_numa_available(void)
+{
+	/*
+	 * Probe for NUMA by doing a dummy get_mempolicy().  If the syscall
+	 * fails with ENOSYS, then the kernel was built without NUMA support.
+	 * if the syscall fails with EPERM, then the process/user lacks the
+	 * necessary capabilities (CAP_SYS_NICE).
+	 */
+	return !get_mempolicy(NULL, NULL, 0, NULL, 0) ||
+		(errno != ENOSYS && errno != EPERM);
+}
+
+static inline bool is_multi_numa_node_system(void)
+{
+	return is_numa_available() && get_max_numa_node() >= 1;
+}
+
+#endif /* SELFTEST_KVM_NUMAIF_H */
diff --git a/tools/testing/selftests/kvm/include/riscv/arch_timer.h b/tools/testing/selftests/kvm/include/riscv/arch_timer.h
new file mode 100644
index 000000000000..225d81dad064
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/riscv/arch_timer.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * RISC-V Arch Timer(sstc) specific interface
+ *
+ * Copyright (c) 2024 Intel Corporation
+ */
+
+#ifndef SELFTEST_KVM_ARCH_TIMER_H
+#define SELFTEST_KVM_ARCH_TIMER_H
+
+#include <asm/csr.h>
+#include <asm/vdso/processor.h>
+
+static unsigned long timer_freq;
+
+#define msec_to_cycles(msec)	\
+	((timer_freq) * (uint64_t)(msec) / 1000)
+
+#define usec_to_cycles(usec)	\
+	((timer_freq) * (uint64_t)(usec) / 1000000)
+
+#define cycles_to_usec(cycles) \
+	((uint64_t)(cycles) * 1000000 / (timer_freq))
+
+static inline uint64_t timer_get_cycles(void)
+{
+	return csr_read(CSR_TIME);
+}
+
+static inline void timer_set_cmp(uint64_t cval)
+{
+	csr_write(CSR_STIMECMP, cval);
+}
+
+static inline uint64_t timer_get_cmp(void)
+{
+	return csr_read(CSR_STIMECMP);
+}
+
+static inline void timer_irq_enable(void)
+{
+	csr_set(CSR_SIE, IE_TIE);
+}
+
+static inline void timer_irq_disable(void)
+{
+	csr_clear(CSR_SIE, IE_TIE);
+}
+
+static inline void timer_set_next_cmp_ms(uint32_t msec)
+{
+	uint64_t now_ct = timer_get_cycles();
+	uint64_t next_ct = now_ct + msec_to_cycles(msec);
+
+	timer_set_cmp(next_ct);
+}
+
+static inline void __delay(uint64_t cycles)
+{
+	uint64_t start = timer_get_cycles();
+
+	while ((timer_get_cycles() - start) < cycles)
+		cpu_relax();
+}
+
+static inline void udelay(unsigned long usec)
+{
+	__delay(usec_to_cycles(usec));
+}
+
+#endif /* SELFTEST_KVM_ARCH_TIMER_H */
diff --git a/tools/testing/selftests/kvm/include/riscv/kvm_util_arch.h b/tools/testing/selftests/kvm/include/riscv/kvm_util_arch.h
new file mode 100644
index 000000000000..e43a57d99b56
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/riscv/kvm_util_arch.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_ARCH_H
+#define SELFTEST_KVM_UTIL_ARCH_H
+
+struct kvm_vm_arch {};
+
+#endif  // SELFTEST_KVM_UTIL_ARCH_H
diff --git a/tools/testing/selftests/kvm/include/riscv/processor.h b/tools/testing/selftests/kvm/include/riscv/processor.h
new file mode 100644
index 000000000000..e58282488beb
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/riscv/processor.h
@@ -0,0 +1,195 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * RISC-V processor specific defines
+ *
+ * Copyright (C) 2021 Western Digital Corporation or its affiliates.
+ */
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#include <linux/stringify.h>
+#include <asm/csr.h>
+#include <asm/vdso/processor.h>
+#include "kvm_util.h"
+
+#define INSN_OPCODE_MASK	0x007c
+#define INSN_OPCODE_SHIFT	2
+#define INSN_OPCODE_SYSTEM	28
+
+#define INSN_MASK_FUNCT3	0x7000
+#define INSN_SHIFT_FUNCT3	12
+
+#define INSN_CSR_MASK		0xfff00000
+#define INSN_CSR_SHIFT		20
+
+#define GET_RM(insn)            (((insn) & INSN_MASK_FUNCT3) >> INSN_SHIFT_FUNCT3)
+#define GET_CSR_NUM(insn)       (((insn) & INSN_CSR_MASK) >> INSN_CSR_SHIFT)
+
+static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t subtype,
+				    uint64_t idx, uint64_t size)
+{
+	return KVM_REG_RISCV | type | subtype | idx | size;
+}
+
+#if __riscv_xlen == 64
+#define KVM_REG_SIZE_ULONG	KVM_REG_SIZE_U64
+#else
+#define KVM_REG_SIZE_ULONG	KVM_REG_SIZE_U32
+#endif
+
+#define RISCV_CONFIG_REG(name)		__kvm_reg_id(KVM_REG_RISCV_CONFIG, 0,		\
+						     KVM_REG_RISCV_CONFIG_REG(name),	\
+						     KVM_REG_SIZE_ULONG)
+
+#define RISCV_CORE_REG(name)		__kvm_reg_id(KVM_REG_RISCV_CORE, 0,		\
+						     KVM_REG_RISCV_CORE_REG(name),	\
+						     KVM_REG_SIZE_ULONG)
+
+#define RISCV_GENERAL_CSR_REG(name)	__kvm_reg_id(KVM_REG_RISCV_CSR,			\
+						     KVM_REG_RISCV_CSR_GENERAL,		\
+						     KVM_REG_RISCV_CSR_REG(name),	\
+						     KVM_REG_SIZE_ULONG)
+
+#define RISCV_TIMER_REG(name)		__kvm_reg_id(KVM_REG_RISCV_TIMER, 0,		\
+						     KVM_REG_RISCV_TIMER_REG(name),	\
+						     KVM_REG_SIZE_U64)
+
+#define RISCV_ISA_EXT_REG(idx)		__kvm_reg_id(KVM_REG_RISCV_ISA_EXT,		\
+						     KVM_REG_RISCV_ISA_SINGLE,		\
+						     idx, KVM_REG_SIZE_ULONG)
+
+#define RISCV_SBI_EXT_REG(idx)		__kvm_reg_id(KVM_REG_RISCV_SBI_EXT,		\
+						     KVM_REG_RISCV_SBI_SINGLE,		\
+						     idx, KVM_REG_SIZE_ULONG)
+
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext);
+
+static inline bool __vcpu_has_isa_ext(struct kvm_vcpu *vcpu, uint64_t isa_ext)
+{
+	return __vcpu_has_ext(vcpu, RISCV_ISA_EXT_REG(isa_ext));
+}
+
+static inline bool __vcpu_has_sbi_ext(struct kvm_vcpu *vcpu, uint64_t sbi_ext)
+{
+	return __vcpu_has_ext(vcpu, RISCV_SBI_EXT_REG(sbi_ext));
+}
+
+struct pt_regs {
+	unsigned long epc;
+	unsigned long ra;
+	unsigned long sp;
+	unsigned long gp;
+	unsigned long tp;
+	unsigned long t0;
+	unsigned long t1;
+	unsigned long t2;
+	unsigned long s0;
+	unsigned long s1;
+	unsigned long a0;
+	unsigned long a1;
+	unsigned long a2;
+	unsigned long a3;
+	unsigned long a4;
+	unsigned long a5;
+	unsigned long a6;
+	unsigned long a7;
+	unsigned long s2;
+	unsigned long s3;
+	unsigned long s4;
+	unsigned long s5;
+	unsigned long s6;
+	unsigned long s7;
+	unsigned long s8;
+	unsigned long s9;
+	unsigned long s10;
+	unsigned long s11;
+	unsigned long t3;
+	unsigned long t4;
+	unsigned long t5;
+	unsigned long t6;
+	/* Supervisor/Machine CSRs */
+	unsigned long status;
+	unsigned long badaddr;
+	unsigned long cause;
+	/* a0 value before the syscall */
+	unsigned long orig_a0;
+};
+
+#define NR_VECTORS  2
+#define NR_EXCEPTIONS  32
+#define EC_MASK  (NR_EXCEPTIONS - 1)
+
+typedef void(*exception_handler_fn)(struct pt_regs *);
+
+void vm_init_vector_tables(struct kvm_vm *vm);
+void vcpu_init_vector_tables(struct kvm_vcpu *vcpu);
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector, exception_handler_fn handler);
+
+void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handler);
+
+/* L3 index Bit[47:39] */
+#define PGTBL_L3_INDEX_MASK			0x0000FF8000000000ULL
+#define PGTBL_L3_INDEX_SHIFT			39
+#define PGTBL_L3_BLOCK_SHIFT			39
+#define PGTBL_L3_BLOCK_SIZE			0x0000008000000000ULL
+#define PGTBL_L3_MAP_MASK			(~(PGTBL_L3_BLOCK_SIZE - 1))
+/* L2 index Bit[38:30] */
+#define PGTBL_L2_INDEX_MASK			0x0000007FC0000000ULL
+#define PGTBL_L2_INDEX_SHIFT			30
+#define PGTBL_L2_BLOCK_SHIFT			30
+#define PGTBL_L2_BLOCK_SIZE			0x0000000040000000ULL
+#define PGTBL_L2_MAP_MASK			(~(PGTBL_L2_BLOCK_SIZE - 1))
+/* L1 index Bit[29:21] */
+#define PGTBL_L1_INDEX_MASK			0x000000003FE00000ULL
+#define PGTBL_L1_INDEX_SHIFT			21
+#define PGTBL_L1_BLOCK_SHIFT			21
+#define PGTBL_L1_BLOCK_SIZE			0x0000000000200000ULL
+#define PGTBL_L1_MAP_MASK			(~(PGTBL_L1_BLOCK_SIZE - 1))
+/* L0 index Bit[20:12] */
+#define PGTBL_L0_INDEX_MASK			0x00000000001FF000ULL
+#define PGTBL_L0_INDEX_SHIFT			12
+#define PGTBL_L0_BLOCK_SHIFT			12
+#define PGTBL_L0_BLOCK_SIZE			0x0000000000001000ULL
+#define PGTBL_L0_MAP_MASK			(~(PGTBL_L0_BLOCK_SIZE - 1))
+
+#define PGTBL_PTE_ADDR_MASK			0x003FFFFFFFFFFC00ULL
+#define PGTBL_PTE_ADDR_SHIFT			10
+#define PGTBL_PTE_RSW_MASK			0x0000000000000300ULL
+#define PGTBL_PTE_RSW_SHIFT			8
+#define PGTBL_PTE_DIRTY_MASK			0x0000000000000080ULL
+#define PGTBL_PTE_DIRTY_SHIFT			7
+#define PGTBL_PTE_ACCESSED_MASK			0x0000000000000040ULL
+#define PGTBL_PTE_ACCESSED_SHIFT		6
+#define PGTBL_PTE_GLOBAL_MASK			0x0000000000000020ULL
+#define PGTBL_PTE_GLOBAL_SHIFT			5
+#define PGTBL_PTE_USER_MASK			0x0000000000000010ULL
+#define PGTBL_PTE_USER_SHIFT			4
+#define PGTBL_PTE_EXECUTE_MASK			0x0000000000000008ULL
+#define PGTBL_PTE_EXECUTE_SHIFT			3
+#define PGTBL_PTE_WRITE_MASK			0x0000000000000004ULL
+#define PGTBL_PTE_WRITE_SHIFT			2
+#define PGTBL_PTE_READ_MASK			0x0000000000000002ULL
+#define PGTBL_PTE_READ_SHIFT			1
+#define PGTBL_PTE_PERM_MASK			(PGTBL_PTE_ACCESSED_MASK | \
+						 PGTBL_PTE_DIRTY_MASK | \
+						 PGTBL_PTE_EXECUTE_MASK | \
+						 PGTBL_PTE_WRITE_MASK | \
+						 PGTBL_PTE_READ_MASK)
+#define PGTBL_PTE_VALID_MASK			0x0000000000000001ULL
+#define PGTBL_PTE_VALID_SHIFT			0
+
+#define PGTBL_PAGE_SIZE				PGTBL_L0_BLOCK_SIZE
+#define PGTBL_PAGE_SIZE_SHIFT			PGTBL_L0_BLOCK_SHIFT
+
+static inline void local_irq_enable(void)
+{
+	csr_set(CSR_SSTATUS, SR_SIE);
+}
+
+static inline void local_irq_disable(void)
+{
+	csr_clear(CSR_SSTATUS, SR_SIE);
+}
+
+#endif /* SELFTEST_KVM_PROCESSOR_H */
diff --git a/tools/testing/selftests/kvm/include/riscv/sbi.h b/tools/testing/selftests/kvm/include/riscv/sbi.h
new file mode 100644
index 000000000000..046b432ae896
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/riscv/sbi.h
@@ -0,0 +1,141 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * RISC-V SBI specific definitions
+ *
+ * Copyright (C) 2024 Rivos Inc.
+ */
+
+#ifndef SELFTEST_KVM_SBI_H
+#define SELFTEST_KVM_SBI_H
+
+/* SBI spec version fields */
+#define SBI_SPEC_VERSION_DEFAULT	0x1
+#define SBI_SPEC_VERSION_MAJOR_SHIFT	24
+#define SBI_SPEC_VERSION_MAJOR_MASK	0x7f
+#define SBI_SPEC_VERSION_MINOR_MASK	0xffffff
+
+/* SBI return error codes */
+#define SBI_SUCCESS				 0
+#define SBI_ERR_FAILURE				-1
+#define SBI_ERR_NOT_SUPPORTED			-2
+#define SBI_ERR_INVALID_PARAM			-3
+#define SBI_ERR_DENIED				-4
+#define SBI_ERR_INVALID_ADDRESS			-5
+#define SBI_ERR_ALREADY_AVAILABLE		-6
+#define SBI_ERR_ALREADY_STARTED			-7
+#define SBI_ERR_ALREADY_STOPPED			-8
+
+#define SBI_EXT_EXPERIMENTAL_START		0x08000000
+#define SBI_EXT_EXPERIMENTAL_END		0x08FFFFFF
+
+#define KVM_RISCV_SELFTESTS_SBI_EXT		SBI_EXT_EXPERIMENTAL_END
+#define KVM_RISCV_SELFTESTS_SBI_UCALL		0
+#define KVM_RISCV_SELFTESTS_SBI_UNEXP		1
+
+enum sbi_ext_id {
+	SBI_EXT_BASE = 0x10,
+	SBI_EXT_STA = 0x535441,
+	SBI_EXT_PMU = 0x504D55,
+};
+
+enum sbi_ext_base_fid {
+	SBI_EXT_BASE_GET_SPEC_VERSION = 0,
+	SBI_EXT_BASE_GET_IMP_ID,
+	SBI_EXT_BASE_GET_IMP_VERSION,
+	SBI_EXT_BASE_PROBE_EXT = 3,
+};
+enum sbi_ext_pmu_fid {
+	SBI_EXT_PMU_NUM_COUNTERS = 0,
+	SBI_EXT_PMU_COUNTER_GET_INFO,
+	SBI_EXT_PMU_COUNTER_CFG_MATCH,
+	SBI_EXT_PMU_COUNTER_START,
+	SBI_EXT_PMU_COUNTER_STOP,
+	SBI_EXT_PMU_COUNTER_FW_READ,
+	SBI_EXT_PMU_COUNTER_FW_READ_HI,
+	SBI_EXT_PMU_SNAPSHOT_SET_SHMEM,
+};
+
+union sbi_pmu_ctr_info {
+	unsigned long value;
+	struct {
+		unsigned long csr:12;
+		unsigned long width:6;
+#if __riscv_xlen == 32
+		unsigned long reserved:13;
+#else
+		unsigned long reserved:45;
+#endif
+		unsigned long type:1;
+	};
+};
+
+struct riscv_pmu_snapshot_data {
+	u64 ctr_overflow_mask;
+	u64 ctr_values[64];
+	u64 reserved[447];
+};
+
+struct sbiret {
+	long error;
+	long value;
+};
+
+/** General pmu event codes specified in SBI PMU extension */
+enum sbi_pmu_hw_generic_events_t {
+	SBI_PMU_HW_NO_EVENT			= 0,
+	SBI_PMU_HW_CPU_CYCLES			= 1,
+	SBI_PMU_HW_INSTRUCTIONS			= 2,
+	SBI_PMU_HW_CACHE_REFERENCES		= 3,
+	SBI_PMU_HW_CACHE_MISSES			= 4,
+	SBI_PMU_HW_BRANCH_INSTRUCTIONS		= 5,
+	SBI_PMU_HW_BRANCH_MISSES		= 6,
+	SBI_PMU_HW_BUS_CYCLES			= 7,
+	SBI_PMU_HW_STALLED_CYCLES_FRONTEND	= 8,
+	SBI_PMU_HW_STALLED_CYCLES_BACKEND	= 9,
+	SBI_PMU_HW_REF_CPU_CYCLES		= 10,
+
+	SBI_PMU_HW_GENERAL_MAX,
+};
+
+/* SBI PMU counter types */
+enum sbi_pmu_ctr_type {
+	SBI_PMU_CTR_TYPE_HW = 0x0,
+	SBI_PMU_CTR_TYPE_FW,
+};
+
+/* Flags defined for config matching function */
+#define SBI_PMU_CFG_FLAG_SKIP_MATCH	BIT(0)
+#define SBI_PMU_CFG_FLAG_CLEAR_VALUE	BIT(1)
+#define SBI_PMU_CFG_FLAG_AUTO_START	BIT(2)
+#define SBI_PMU_CFG_FLAG_SET_VUINH	BIT(3)
+#define SBI_PMU_CFG_FLAG_SET_VSINH	BIT(4)
+#define SBI_PMU_CFG_FLAG_SET_UINH	BIT(5)
+#define SBI_PMU_CFG_FLAG_SET_SINH	BIT(6)
+#define SBI_PMU_CFG_FLAG_SET_MINH	BIT(7)
+
+/* Flags defined for counter start function */
+#define SBI_PMU_START_FLAG_SET_INIT_VALUE BIT(0)
+#define SBI_PMU_START_FLAG_INIT_SNAPSHOT BIT(1)
+
+/* Flags defined for counter stop function */
+#define SBI_PMU_STOP_FLAG_RESET BIT(0)
+#define SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT BIT(1)
+
+struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
+			unsigned long arg1, unsigned long arg2,
+			unsigned long arg3, unsigned long arg4,
+			unsigned long arg5);
+
+bool guest_sbi_probe_extension(int extid, long *out_val);
+
+/* Make SBI version */
+static inline unsigned long sbi_mk_version(unsigned long major,
+					    unsigned long minor)
+{
+	return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << SBI_SPEC_VERSION_MAJOR_SHIFT)
+		| (minor & SBI_SPEC_VERSION_MINOR_MASK);
+}
+
+unsigned long get_host_sbi_spec_version(void);
+
+#endif /* SELFTEST_KVM_SBI_H */
diff --git a/tools/testing/selftests/kvm/include/riscv/ucall.h b/tools/testing/selftests/kvm/include/riscv/ucall.h
new file mode 100644
index 000000000000..a695ae36f3e0
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/riscv/ucall.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UCALL_H
+#define SELFTEST_KVM_UCALL_H
+
+#include "processor.h"
+#include "sbi.h"
+
+#define UCALL_EXIT_REASON       KVM_EXIT_RISCV_SBI
+
+static inline void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+}
+
+static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
+{
+	sbi_ecall(KVM_RISCV_SELFTESTS_SBI_EXT,
+		  KVM_RISCV_SELFTESTS_SBI_UCALL,
+		  uc, 0, 0, 0, 0, 0);
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/s390/debug_print.h b/tools/testing/selftests/kvm/include/s390/debug_print.h
new file mode 100644
index 000000000000..1bf275631cc6
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/debug_print.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Definition for kernel virtual machines on s390x
+ *
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ *  Christoph Schlameuss <schlameuss@linux.ibm.com>
+ */
+
+#ifndef SELFTEST_KVM_DEBUG_PRINT_H
+#define SELFTEST_KVM_DEBUG_PRINT_H
+
+#include "asm/ptrace.h"
+#include "kvm_util.h"
+#include "sie.h"
+
+static inline void print_hex_bytes(const char *name, u64 addr, size_t len)
+{
+	u64 pos;
+
+	pr_debug("%s (%p)\n", name, (void *)addr);
+	pr_debug("            0/0x00---------|");
+	if (len > 8)
+		pr_debug(" 8/0x08---------|");
+	if (len > 16)
+		pr_debug(" 16/0x10--------|");
+	if (len > 24)
+		pr_debug(" 24/0x18--------|");
+	for (pos = 0; pos < len; pos += 8) {
+		if ((pos % 32) == 0)
+			pr_debug("\n %3lu 0x%.3lx ", pos, pos);
+		pr_debug(" %16lx", *((u64 *)(addr + pos)));
+	}
+	pr_debug("\n");
+}
+
+static inline void print_hex(const char *name, u64 addr)
+{
+	print_hex_bytes(name, addr, 512);
+}
+
+static inline void print_psw(struct kvm_run *run, struct kvm_s390_sie_block *sie_block)
+{
+	pr_debug("flags:0x%x psw:0x%.16llx:0x%.16llx exit:%u %s\n",
+		 run->flags,
+		 run->psw_mask, run->psw_addr,
+		 run->exit_reason, exit_reason_str(run->exit_reason));
+	pr_debug("sie_block psw:0x%.16llx:0x%.16llx\n",
+		 sie_block->psw_mask, sie_block->psw_addr);
+}
+
+static inline void print_run(struct kvm_run *run, struct kvm_s390_sie_block *sie_block)
+{
+	print_hex_bytes("run", (u64)run, 0x150);
+	print_hex("sie_block", (u64)sie_block);
+	print_psw(run, sie_block);
+}
+
+static inline void print_regs(struct kvm_run *run)
+{
+	struct kvm_sync_regs *sync_regs = &run->s.regs;
+
+	print_hex_bytes("GPRS", (u64)sync_regs->gprs, 8 * NUM_GPRS);
+	print_hex_bytes("ACRS", (u64)sync_regs->acrs, 4 * NUM_ACRS);
+	print_hex_bytes("CRS", (u64)sync_regs->crs, 8 * NUM_CRS);
+}
+
+#endif /* SELFTEST_KVM_DEBUG_PRINT_H */
diff --git a/tools/testing/selftests/kvm/include/s390/diag318_test_handler.h b/tools/testing/selftests/kvm/include/s390/diag318_test_handler.h
new file mode 100644
index 000000000000..b0ed71302722
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/diag318_test_handler.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Test handler for the s390x DIAGNOSE 0x0318 instruction.
+ *
+ * Copyright (C) 2020, IBM
+ */
+
+#ifndef SELFTEST_KVM_DIAG318_TEST_HANDLER
+#define SELFTEST_KVM_DIAG318_TEST_HANDLER
+
+uint64_t get_diag318_info(void);
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/s390/facility.h b/tools/testing/selftests/kvm/include/s390/facility.h
new file mode 100644
index 000000000000..00a1ced6538b
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/facility.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ *  Hariharan Mari <hari55@linux.ibm.com>
+ *
+ * Get the facility bits with the STFLE instruction
+ */
+
+#ifndef SELFTEST_KVM_FACILITY_H
+#define SELFTEST_KVM_FACILITY_H
+
+#include <linux/bitops.h>
+
+/* alt_stfle_fac_list[16] + stfle_fac_list[16] */
+#define NB_STFL_DOUBLEWORDS 32
+
+extern uint64_t stfl_doublewords[NB_STFL_DOUBLEWORDS];
+extern bool stfle_flag;
+
+static inline bool test_bit_inv(unsigned long nr, const unsigned long *ptr)
+{
+	return test_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
+static inline void stfle(uint64_t *fac, unsigned int nb_doublewords)
+{
+	register unsigned long r0 asm("0") = nb_doublewords - 1;
+
+	asm volatile("	.insn	s,0xb2b00000,0(%1)\n"
+			: "+d" (r0)
+			: "a" (fac)
+			: "memory", "cc");
+}
+
+static inline void setup_facilities(void)
+{
+	stfle(stfl_doublewords, NB_STFL_DOUBLEWORDS);
+	stfle_flag = true;
+}
+
+static inline bool test_facility(int nr)
+{
+	if (!stfle_flag)
+		setup_facilities();
+	return test_bit_inv(nr, stfl_doublewords);
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/s390/kvm_util_arch.h b/tools/testing/selftests/kvm/include/s390/kvm_util_arch.h
new file mode 100644
index 000000000000..e43a57d99b56
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/kvm_util_arch.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_ARCH_H
+#define SELFTEST_KVM_UTIL_ARCH_H
+
+struct kvm_vm_arch {};
+
+#endif  // SELFTEST_KVM_UTIL_ARCH_H
diff --git a/tools/testing/selftests/kvm/include/s390/processor.h b/tools/testing/selftests/kvm/include/s390/processor.h
new file mode 100644
index 000000000000..33fef6fd9617
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/processor.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * s390x processor specific defines
+ */
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#include <linux/compiler.h>
+
+/* Bits in the region/segment table entry */
+#define REGION_ENTRY_ORIGIN	~0xfffUL /* region/segment table origin	   */
+#define REGION_ENTRY_PROTECT	0x200	 /* region protection bit	   */
+#define REGION_ENTRY_NOEXEC	0x100	 /* region no-execute bit	   */
+#define REGION_ENTRY_OFFSET	0xc0	 /* region table offset		   */
+#define REGION_ENTRY_INVALID	0x20	 /* invalid region table entry	   */
+#define REGION_ENTRY_TYPE	0x0c	 /* region/segment table type mask */
+#define REGION_ENTRY_LENGTH	0x03	 /* region third length		   */
+
+/* Bits in the page table entry */
+#define PAGE_INVALID	0x400		/* HW invalid bit    */
+#define PAGE_PROTECT	0x200		/* HW read-only bit  */
+#define PAGE_NOEXEC	0x100		/* HW no-execute bit */
+
+/* Page size definitions */
+#define PAGE_SHIFT 12
+#define PAGE_SIZE BIT_ULL(PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE - 1))
+
+/* Is there a portable way to do this? */
+static inline void cpu_relax(void)
+{
+	barrier();
+}
+
+/* Get the instruction length */
+static inline int insn_length(unsigned char code)
+{
+	return ((((int)code + 64) >> 7) + 1) << 1;
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/s390/sie.h b/tools/testing/selftests/kvm/include/s390/sie.h
new file mode 100644
index 000000000000..160acd4a1db9
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/sie.h
@@ -0,0 +1,240 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Definition for kernel virtual machines on s390.
+ *
+ * Adapted copy of struct definition kvm_s390_sie_block from
+ * arch/s390/include/asm/kvm_host.h for use in userspace selftest programs.
+ *
+ * Copyright IBM Corp. 2008, 2024
+ *
+ * Authors:
+ *  Christoph Schlameuss <schlameuss@linux.ibm.com>
+ *  Carsten Otte <cotte@de.ibm.com>
+ */
+
+#ifndef SELFTEST_KVM_SIE_H
+#define SELFTEST_KVM_SIE_H
+
+#include <linux/types.h>
+
+struct kvm_s390_sie_block {
+#define CPUSTAT_STOPPED    0x80000000
+#define CPUSTAT_WAIT       0x10000000
+#define CPUSTAT_ECALL_PEND 0x08000000
+#define CPUSTAT_STOP_INT   0x04000000
+#define CPUSTAT_IO_INT     0x02000000
+#define CPUSTAT_EXT_INT    0x01000000
+#define CPUSTAT_RUNNING    0x00800000
+#define CPUSTAT_RETAINED   0x00400000
+#define CPUSTAT_TIMING_SUB 0x00020000
+#define CPUSTAT_SIE_SUB    0x00010000
+#define CPUSTAT_RRF        0x00008000
+#define CPUSTAT_SLSV       0x00004000
+#define CPUSTAT_SLSR       0x00002000
+#define CPUSTAT_ZARCH      0x00000800
+#define CPUSTAT_MCDS       0x00000100
+#define CPUSTAT_KSS        0x00000200
+#define CPUSTAT_SM         0x00000080
+#define CPUSTAT_IBS        0x00000040
+#define CPUSTAT_GED2       0x00000010
+#define CPUSTAT_G          0x00000008
+#define CPUSTAT_GED        0x00000004
+#define CPUSTAT_J          0x00000002
+#define CPUSTAT_P          0x00000001
+	__u32 cpuflags;			/* 0x0000 */
+	__u32: 1;			/* 0x0004 */
+	__u32 prefix : 18;
+	__u32: 1;
+	__u32 ibc : 12;
+	__u8	reserved08[4];		/* 0x0008 */
+#define PROG_IN_SIE BIT(0)
+	__u32	prog0c;			/* 0x000c */
+	union {
+		__u8	reserved10[16];	/* 0x0010 */
+		struct {
+			__u64	pv_handle_cpu;
+			__u64	pv_handle_config;
+		};
+	};
+#define PROG_BLOCK_SIE	BIT(0)
+#define PROG_REQUEST	BIT(1)
+	__u32	prog20;			/* 0x0020 */
+	__u8	reserved24[4];		/* 0x0024 */
+	__u64	cputm;			/* 0x0028 */
+	__u64	ckc;			/* 0x0030 */
+	__u64	epoch;			/* 0x0038 */
+	__u32	svcc;			/* 0x0040 */
+#define LCTL_CR0	0x8000
+#define LCTL_CR6	0x0200
+#define LCTL_CR9	0x0040
+#define LCTL_CR10	0x0020
+#define LCTL_CR11	0x0010
+#define LCTL_CR14	0x0002
+	__u16   lctl;			/* 0x0044 */
+	__s16	icpua;			/* 0x0046 */
+#define ICTL_OPEREXC	0x80000000
+#define ICTL_PINT	0x20000000
+#define ICTL_LPSW	0x00400000
+#define ICTL_STCTL	0x00040000
+#define ICTL_ISKE	0x00004000
+#define ICTL_SSKE	0x00002000
+#define ICTL_RRBE	0x00001000
+#define ICTL_TPROT	0x00000200
+	__u32	ictl;			/* 0x0048 */
+#define ECA_CEI		0x80000000
+#define ECA_IB		0x40000000
+#define ECA_SIGPI	0x10000000
+#define ECA_MVPGI	0x01000000
+#define ECA_AIV		0x00200000
+#define ECA_VX		0x00020000
+#define ECA_PROTEXCI	0x00002000
+#define ECA_APIE	0x00000008
+#define ECA_SII		0x00000001
+	__u32	eca;			/* 0x004c */
+#define ICPT_INST	0x04
+#define ICPT_PROGI	0x08
+#define ICPT_INSTPROGI	0x0C
+#define ICPT_EXTREQ	0x10
+#define ICPT_EXTINT	0x14
+#define ICPT_IOREQ	0x18
+#define ICPT_WAIT	0x1c
+#define ICPT_VALIDITY	0x20
+#define ICPT_STOP	0x28
+#define ICPT_OPEREXC	0x2C
+#define ICPT_PARTEXEC	0x38
+#define ICPT_IOINST	0x40
+#define ICPT_KSS	0x5c
+#define ICPT_MCHKREQ	0x60
+#define ICPT_INT_ENABLE	0x64
+#define ICPT_PV_INSTR	0x68
+#define ICPT_PV_NOTIFY	0x6c
+#define ICPT_PV_PREF	0x70
+	__u8	icptcode;		/* 0x0050 */
+	__u8	icptstatus;		/* 0x0051 */
+	__u16	ihcpu;			/* 0x0052 */
+	__u8	reserved54;		/* 0x0054 */
+#define IICTL_CODE_NONE		 0x00
+#define IICTL_CODE_MCHK		 0x01
+#define IICTL_CODE_EXT		 0x02
+#define IICTL_CODE_IO		 0x03
+#define IICTL_CODE_RESTART	 0x04
+#define IICTL_CODE_SPECIFICATION 0x10
+#define IICTL_CODE_OPERAND	 0x11
+	__u8	iictl;			/* 0x0055 */
+	__u16	ipa;			/* 0x0056 */
+	__u32	ipb;			/* 0x0058 */
+	__u32	scaoh;			/* 0x005c */
+#define FPF_BPBC	0x20
+	__u8	fpf;			/* 0x0060 */
+#define ECB_GS		0x40
+#define ECB_TE		0x10
+#define ECB_SPECI	0x08
+#define ECB_SRSI	0x04
+#define ECB_HOSTPROTINT	0x02
+#define ECB_PTF		0x01
+	__u8	ecb;			/* 0x0061 */
+#define ECB2_CMMA	0x80
+#define ECB2_IEP	0x20
+#define ECB2_PFMFI	0x08
+#define ECB2_ESCA	0x04
+#define ECB2_ZPCI_LSI	0x02
+	__u8	ecb2;			/* 0x0062 */
+#define ECB3_AISI	0x20
+#define ECB3_AISII	0x10
+#define ECB3_DEA	0x08
+#define ECB3_AES	0x04
+#define ECB3_RI		0x01
+	__u8	ecb3;			/* 0x0063 */
+#define ESCA_SCAOL_MASK ~0x3fU
+	__u32	scaol;			/* 0x0064 */
+	__u8	sdf;			/* 0x0068 */
+	__u8	epdx;			/* 0x0069 */
+	__u8	cpnc;			/* 0x006a */
+	__u8	reserved6b;		/* 0x006b */
+	__u32	todpr;			/* 0x006c */
+#define GISA_FORMAT1 0x00000001
+	__u32	gd;			/* 0x0070 */
+	__u8	reserved74[12];		/* 0x0074 */
+	__u64	mso;			/* 0x0080 */
+	__u64	msl;			/* 0x0088 */
+	__u64	psw_mask;		/* 0x0090 */
+	__u64	psw_addr;		/* 0x0098 */
+	__u64	gg14;			/* 0x00a0 */
+	__u64	gg15;			/* 0x00a8 */
+	__u8	reservedb0[8];		/* 0x00b0 */
+#define HPID_KVM	0x4
+#define HPID_VSIE	0x5
+	__u8	hpid;			/* 0x00b8 */
+	__u8	reservedb9[7];		/* 0x00b9 */
+	union {
+		struct {
+			__u32	eiparams;	/* 0x00c0 */
+			__u16	extcpuaddr;	/* 0x00c4 */
+			__u16	eic;		/* 0x00c6 */
+		};
+		__u64	mcic;			/* 0x00c0 */
+	} __packed;
+	__u32	reservedc8;		/* 0x00c8 */
+	union {
+		struct {
+			__u16	pgmilc;		/* 0x00cc */
+			__u16	iprcc;		/* 0x00ce */
+		};
+		__u32	edc;			/* 0x00cc */
+	} __packed;
+	union {
+		struct {
+			__u32	dxc;		/* 0x00d0 */
+			__u16	mcn;		/* 0x00d4 */
+			__u8	perc;		/* 0x00d6 */
+			__u8	peratmid;	/* 0x00d7 */
+		};
+		__u64	faddr;			/* 0x00d0 */
+	} __packed;
+	__u64	peraddr;		/* 0x00d8 */
+	__u8	eai;			/* 0x00e0 */
+	__u8	peraid;			/* 0x00e1 */
+	__u8	oai;			/* 0x00e2 */
+	__u8	armid;			/* 0x00e3 */
+	__u8	reservede4[4];		/* 0x00e4 */
+	union {
+		__u64	tecmc;		/* 0x00e8 */
+		struct {
+			__u16	subchannel_id;	/* 0x00e8 */
+			__u16	subchannel_nr;	/* 0x00ea */
+			__u32	io_int_parm;	/* 0x00ec */
+			__u32	io_int_word;	/* 0x00f0 */
+		};
+	} __packed;
+	__u8	reservedf4[8];		/* 0x00f4 */
+#define CRYCB_FORMAT_MASK	0x00000003
+#define CRYCB_FORMAT0		0x00000000
+#define CRYCB_FORMAT1		0x00000001
+#define CRYCB_FORMAT2		0x00000003
+	__u32	crycbd;			/* 0x00fc */
+	__u64	gcr[16];		/* 0x0100 */
+	union {
+		__u64	gbea;		/* 0x0180 */
+		__u64	sidad;
+	};
+	__u8    reserved188[8];		/* 0x0188 */
+	__u64   sdnxo;			/* 0x0190 */
+	__u8    reserved198[8];		/* 0x0198 */
+	__u32	fac;			/* 0x01a0 */
+	__u8	reserved1a4[20];	/* 0x01a4 */
+	__u64	cbrlo;			/* 0x01b8 */
+	__u8	reserved1c0[8];		/* 0x01c0 */
+#define ECD_HOSTREGMGMT	0x20000000
+#define ECD_MEF		0x08000000
+#define ECD_ETOKENF	0x02000000
+#define ECD_ECC		0x00200000
+	__u32	ecd;			/* 0x01c8 */
+	__u8	reserved1cc[18];	/* 0x01cc */
+	__u64	pp;			/* 0x01de */
+	__u8	reserved1e6[2];		/* 0x01e6 */
+	__u64	itdba;			/* 0x01e8 */
+	__u64   riccbd;			/* 0x01f0 */
+	__u64	gvrd;			/* 0x01f8 */
+} __packed __aligned(512);
+
+#endif /* SELFTEST_KVM_SIE_H */
diff --git a/tools/testing/selftests/kvm/include/s390/ucall.h b/tools/testing/selftests/kvm/include/s390/ucall.h
new file mode 100644
index 000000000000..8035a872a351
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/s390/ucall.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UCALL_H
+#define SELFTEST_KVM_UCALL_H
+
+#include "kvm_util.h"
+
+#define UCALL_EXIT_REASON       KVM_EXIT_S390_SIEIC
+
+static inline void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+}
+
+static inline void ucall_arch_do_ucall(vm_vaddr_t uc)
+{
+	/* Exit via DIAGNOSE 0x501 (normally used for breakpoints) */
+	asm volatile ("diag 0,%0,0x501" : : "a"(uc) : "memory");
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/sparsebit.h b/tools/testing/selftests/kvm/include/sparsebit.h
new file mode 100644
index 000000000000..bc760761e1a3
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/sparsebit.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * tools/testing/selftests/kvm/include/sparsebit.h
+ *
+ * Copyright (C) 2018, Google LLC.
+ *
+ * Header file that describes API to the sparsebit library.
+ * This library provides a memory efficient means of storing
+ * the settings of bits indexed via a uint64_t.  Memory usage
+ * is reasonable, significantly less than (2^64 / 8) bytes, as
+ * long as bits that are mostly set or mostly cleared are close
+ * to each other.  This library is efficient in memory usage
+ * even in the case where most bits are set.
+ */
+
+#ifndef SELFTEST_KVM_SPARSEBIT_H
+#define SELFTEST_KVM_SPARSEBIT_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct sparsebit;
+typedef uint64_t sparsebit_idx_t;
+typedef uint64_t sparsebit_num_t;
+
+struct sparsebit *sparsebit_alloc(void);
+void sparsebit_free(struct sparsebit **sbitp);
+void sparsebit_copy(struct sparsebit *dstp, const struct sparsebit *src);
+
+bool sparsebit_is_set(const struct sparsebit *sbit, sparsebit_idx_t idx);
+bool sparsebit_is_set_num(const struct sparsebit *sbit,
+			  sparsebit_idx_t idx, sparsebit_num_t num);
+bool sparsebit_is_clear(const struct sparsebit *sbit, sparsebit_idx_t idx);
+bool sparsebit_is_clear_num(const struct sparsebit *sbit,
+			    sparsebit_idx_t idx, sparsebit_num_t num);
+sparsebit_num_t sparsebit_num_set(const struct sparsebit *sbit);
+bool sparsebit_any_set(const struct sparsebit *sbit);
+bool sparsebit_any_clear(const struct sparsebit *sbit);
+bool sparsebit_all_set(const struct sparsebit *sbit);
+bool sparsebit_all_clear(const struct sparsebit *sbit);
+sparsebit_idx_t sparsebit_first_set(const struct sparsebit *sbit);
+sparsebit_idx_t sparsebit_first_clear(const struct sparsebit *sbit);
+sparsebit_idx_t sparsebit_next_set(const struct sparsebit *sbit, sparsebit_idx_t prev);
+sparsebit_idx_t sparsebit_next_clear(const struct sparsebit *sbit, sparsebit_idx_t prev);
+sparsebit_idx_t sparsebit_next_set_num(const struct sparsebit *sbit,
+				       sparsebit_idx_t start, sparsebit_num_t num);
+sparsebit_idx_t sparsebit_next_clear_num(const struct sparsebit *sbit,
+					 sparsebit_idx_t start, sparsebit_num_t num);
+
+void sparsebit_set(struct sparsebit *sbitp, sparsebit_idx_t idx);
+void sparsebit_set_num(struct sparsebit *sbitp, sparsebit_idx_t start,
+		       sparsebit_num_t num);
+void sparsebit_set_all(struct sparsebit *sbitp);
+
+void sparsebit_clear(struct sparsebit *sbitp, sparsebit_idx_t idx);
+void sparsebit_clear_num(struct sparsebit *sbitp,
+			 sparsebit_idx_t start, sparsebit_num_t num);
+void sparsebit_clear_all(struct sparsebit *sbitp);
+
+void sparsebit_dump(FILE *stream, const struct sparsebit *sbit,
+		    unsigned int indent);
+void sparsebit_validate_internal(const struct sparsebit *sbit);
+
+/*
+ * Iterate over an inclusive ranges within sparsebit @s. In each iteration,
+ * @range_begin and @range_end will take the beginning and end of the set
+ * range, which are of type sparsebit_idx_t.
+ *
+ * For example, if the range [3, 7] (inclusive) is set, within the
+ * iteration,@range_begin will take the value 3 and @range_end will take
+ * the value 7.
+ *
+ * Ensure that there is at least one bit set before using this macro with
+ * sparsebit_any_set(), because sparsebit_first_set() will abort if none
+ * are set.
+ */
+#define sparsebit_for_each_set_range(s, range_begin, range_end)         \
+	for (range_begin = sparsebit_first_set(s),                      \
+	     range_end = sparsebit_next_clear(s, range_begin) - 1;	\
+	     range_begin && range_end;                                  \
+	     range_begin = sparsebit_next_set(s, range_end),            \
+	     range_end = sparsebit_next_clear(s, range_begin) - 1)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SELFTEST_KVM_SPARSEBIT_H */
diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h
new file mode 100644
index 000000000000..b4872ba8ed12
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/test_util.h
@@ -0,0 +1,241 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * tools/testing/selftests/kvm/include/test_util.h
+ *
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_TEST_UTIL_H
+#define SELFTEST_KVM_TEST_UTIL_H
+
+#include <setjmp.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include "kselftest.h"
+
+#define msecs_to_usecs(msec)    ((msec) * 1000ULL)
+
+static inline __printf(1, 2) int _no_printf(const char *format, ...) { return 0; }
+
+#ifdef DEBUG
+#define pr_debug(...) printf(__VA_ARGS__)
+#else
+#define pr_debug(...) _no_printf(__VA_ARGS__)
+#endif
+#ifndef QUIET
+#define pr_info(...) printf(__VA_ARGS__)
+#else
+#define pr_info(...) _no_printf(__VA_ARGS__)
+#endif
+
+void __printf(1, 2) print_skip(const char *fmt, ...);
+#define __TEST_REQUIRE(f, fmt, ...)				\
+do {								\
+	if (!(f))						\
+		ksft_exit_skip("- " fmt "\n", ##__VA_ARGS__);	\
+} while (0)
+
+#define TEST_REQUIRE(f) __TEST_REQUIRE(f, "Requirement not met: %s", #f)
+
+ssize_t test_write(int fd, const void *buf, size_t count);
+ssize_t test_read(int fd, void *buf, size_t count);
+int test_seq_read(const char *path, char **bufp, size_t *sizep);
+
+void __printf(5, 6) test_assert(bool exp, const char *exp_str,
+				const char *file, unsigned int line,
+				const char *fmt, ...);
+
+#define TEST_ASSERT(e, fmt, ...) \
+	test_assert((e), #e, __FILE__, __LINE__, fmt, ##__VA_ARGS__)
+
+#define TEST_ASSERT_EQ(a, b)						\
+do {									\
+	typeof(a) __a = (a);						\
+	typeof(b) __b = (b);						\
+	test_assert(__a == __b, #a " == " #b, __FILE__, __LINE__,	\
+		    "%#lx != %#lx (%s != %s)",				\
+		    (unsigned long)(__a), (unsigned long)(__b), #a, #b);\
+} while (0)
+
+#define TEST_ASSERT_KVM_EXIT_REASON(vcpu, expected) do {		\
+	__u32 exit_reason = (vcpu)->run->exit_reason;			\
+									\
+	TEST_ASSERT(exit_reason == (expected),				\
+		    "Wanted KVM exit reason: %u (%s), got: %u (%s)",    \
+		    (expected), exit_reason_str((expected)),		\
+		    exit_reason, exit_reason_str(exit_reason));		\
+} while (0)
+
+#define TEST_FAIL(fmt, ...) do { \
+	TEST_ASSERT(false, fmt, ##__VA_ARGS__); \
+	__builtin_unreachable(); \
+} while (0)
+
+extern sigjmp_buf expect_sigbus_jmpbuf;
+void expect_sigbus_handler(int signum);
+
+#define TEST_EXPECT_SIGBUS(action)						\
+do {										\
+	struct sigaction sa_old, sa_new = {					\
+		.sa_handler = expect_sigbus_handler,				\
+	};									\
+										\
+	sigaction(SIGBUS, &sa_new, &sa_old);					\
+	if (sigsetjmp(expect_sigbus_jmpbuf, 1) == 0) {				\
+		action;								\
+		TEST_FAIL("'%s' should have triggered SIGBUS", #action);	\
+	}									\
+	sigaction(SIGBUS, &sa_old, NULL);					\
+} while (0)
+
+size_t parse_size(const char *size);
+
+int64_t timespec_to_ns(struct timespec ts);
+struct timespec timespec_add_ns(struct timespec ts, int64_t ns);
+struct timespec timespec_add(struct timespec ts1, struct timespec ts2);
+struct timespec timespec_sub(struct timespec ts1, struct timespec ts2);
+struct timespec timespec_elapsed(struct timespec start);
+struct timespec timespec_div(struct timespec ts, int divisor);
+
+struct guest_random_state {
+	uint32_t seed;
+};
+
+extern uint32_t guest_random_seed;
+extern struct guest_random_state guest_rng;
+
+struct guest_random_state new_guest_random_state(uint32_t seed);
+uint32_t guest_random_u32(struct guest_random_state *state);
+
+static inline bool __guest_random_bool(struct guest_random_state *state,
+				       uint8_t percent)
+{
+	return (guest_random_u32(state) % 100) < percent;
+}
+
+static inline bool guest_random_bool(struct guest_random_state *state)
+{
+	return __guest_random_bool(state, 50);
+}
+
+static inline uint64_t guest_random_u64(struct guest_random_state *state)
+{
+	return ((uint64_t)guest_random_u32(state) << 32) | guest_random_u32(state);
+}
+
+enum vm_mem_backing_src_type {
+	VM_MEM_SRC_ANONYMOUS,
+	VM_MEM_SRC_ANONYMOUS_THP,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_16KB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_64KB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_512KB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_1MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_2MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_8MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_16MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_32MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_256MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_512MB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_1GB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_2GB,
+	VM_MEM_SRC_ANONYMOUS_HUGETLB_16GB,
+	VM_MEM_SRC_SHMEM,
+	VM_MEM_SRC_SHARED_HUGETLB,
+	NUM_SRC_TYPES,
+};
+
+#define DEFAULT_VM_MEM_SRC VM_MEM_SRC_ANONYMOUS
+
+struct vm_mem_backing_src_alias {
+	const char *name;
+	uint32_t flag;
+};
+
+#define MIN_RUN_DELAY_NS	200000UL
+
+bool thp_configured(void);
+size_t get_trans_hugepagesz(void);
+size_t get_def_hugetlb_pagesz(void);
+const struct vm_mem_backing_src_alias *vm_mem_backing_src_alias(uint32_t i);
+size_t get_backing_src_pagesz(uint32_t i);
+bool is_backing_src_hugetlb(uint32_t i);
+void backing_src_help(const char *flag);
+enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name);
+long get_run_delay(void);
+bool is_numa_balancing_enabled(void);
+
+/*
+ * Whether or not the given source type is shared memory (as opposed to
+ * anonymous).
+ */
+static inline bool backing_src_is_shared(enum vm_mem_backing_src_type t)
+{
+	return vm_mem_backing_src_alias(t)->flag & MAP_SHARED;
+}
+
+static inline bool backing_src_can_be_huge(enum vm_mem_backing_src_type t)
+{
+	return t != VM_MEM_SRC_ANONYMOUS && t != VM_MEM_SRC_SHMEM;
+}
+
+/* Aligns x up to the next multiple of size. Size must be a power of 2. */
+static inline uint64_t align_up(uint64_t x, uint64_t size)
+{
+	uint64_t mask = size - 1;
+
+	TEST_ASSERT(size != 0 && !(size & (size - 1)),
+		    "size not a power of 2: %lu", size);
+	return ((x + mask) & ~mask);
+}
+
+static inline uint64_t align_down(uint64_t x, uint64_t size)
+{
+	uint64_t x_aligned_up = align_up(x, size);
+
+	if (x == x_aligned_up)
+		return x;
+	else
+		return x_aligned_up - size;
+}
+
+static inline void *align_ptr_up(void *x, size_t size)
+{
+	return (void *)align_up((unsigned long)x, size);
+}
+
+int atoi_paranoid(const char *num_str);
+
+static inline uint32_t atoi_positive(const char *name, const char *num_str)
+{
+	int num = atoi_paranoid(num_str);
+
+	TEST_ASSERT(num > 0, "%s must be greater than 0, got '%s'", name, num_str);
+	return num;
+}
+
+static inline uint32_t atoi_non_negative(const char *name, const char *num_str)
+{
+	int num = atoi_paranoid(num_str);
+
+	TEST_ASSERT(num >= 0, "%s must be non-negative, got '%s'", name, num_str);
+	return num;
+}
+
+int guest_vsnprintf(char *buf, int n, const char *fmt, va_list args);
+__printf(3, 4) int guest_snprintf(char *buf, int n, const char *fmt, ...);
+
+char *strdup_printf(const char *fmt, ...) __attribute__((format(printf, 1, 2), nonnull(1)));
+
+char *sys_get_cur_clocksource(void);
+
+#endif /* SELFTEST_KVM_TEST_UTIL_H */
diff --git a/tools/testing/selftests/kvm/include/timer_test.h b/tools/testing/selftests/kvm/include/timer_test.h
new file mode 100644
index 000000000000..9b6edaafe6d4
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/timer_test.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * timer test specific header
+ *
+ * Copyright (C) 2018, Google LLC
+ */
+
+#ifndef SELFTEST_KVM_TIMER_TEST_H
+#define SELFTEST_KVM_TIMER_TEST_H
+
+#include "kvm_util.h"
+
+#define NR_VCPUS_DEF            4
+#define NR_TEST_ITERS_DEF       5
+#define TIMER_TEST_PERIOD_MS_DEF    10
+#define TIMER_TEST_ERR_MARGIN_US    100
+#define TIMER_TEST_MIGRATION_FREQ_MS    2
+
+/* Timer test cmdline parameters */
+struct test_args {
+	uint32_t nr_vcpus;
+	uint32_t nr_iter;
+	uint32_t timer_period_ms;
+	uint32_t migration_freq_ms;
+	uint32_t timer_err_margin_us;
+	/* Members of struct kvm_arm_counter_offset */
+	uint64_t counter_offset;
+	uint64_t reserved;
+};
+
+/* Shared variables between host and guest */
+struct test_vcpu_shared_data {
+	uint32_t nr_iter;
+	int guest_stage;
+	uint64_t xcnt;
+};
+
+extern struct test_args test_args;
+extern struct kvm_vcpu *vcpus[];
+extern struct test_vcpu_shared_data vcpu_shared_data[];
+
+struct kvm_vm *test_vm_create(void);
+void test_vm_cleanup(struct kvm_vm *vm);
+
+#endif /* SELFTEST_KVM_TIMER_TEST_H */
diff --git a/tools/testing/selftests/kvm/include/ucall_common.h b/tools/testing/selftests/kvm/include/ucall_common.h
new file mode 100644
index 000000000000..d9d6581b8d4f
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/ucall_common.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+#ifndef SELFTEST_KVM_UCALL_COMMON_H
+#define SELFTEST_KVM_UCALL_COMMON_H
+#include "test_util.h"
+#include "ucall.h"
+
+/* Common ucalls */
+enum {
+	UCALL_NONE,
+	UCALL_SYNC,
+	UCALL_ABORT,
+	UCALL_PRINTF,
+	UCALL_DONE,
+	UCALL_UNHANDLED,
+};
+
+#define UCALL_MAX_ARGS 7
+#define UCALL_BUFFER_LEN 1024
+
+struct ucall {
+	uint64_t cmd;
+	uint64_t args[UCALL_MAX_ARGS];
+	char buffer[UCALL_BUFFER_LEN];
+
+	/* Host virtual address of this struct. */
+	struct ucall *hva;
+};
+
+void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa);
+void ucall_arch_do_ucall(vm_vaddr_t uc);
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu);
+
+void ucall(uint64_t cmd, int nargs, ...);
+__printf(2, 3) void ucall_fmt(uint64_t cmd, const char *fmt, ...);
+__printf(5, 6) void ucall_assert(uint64_t cmd, const char *exp,
+				 const char *file, unsigned int line,
+				 const char *fmt, ...);
+uint64_t get_ucall(struct kvm_vcpu *vcpu, struct ucall *uc);
+void ucall_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa);
+int ucall_nr_pages_required(uint64_t page_size);
+
+/*
+ * Perform userspace call without any associated data.  This bare call avoids
+ * allocating a ucall struct, which can be useful if the atomic operations in
+ * the full ucall() are problematic and/or unwanted.  Note, this will come out
+ * as UCALL_NONE on the backend.
+ */
+#define GUEST_UCALL_NONE()	ucall_arch_do_ucall((vm_vaddr_t)NULL)
+
+#define GUEST_SYNC_ARGS(stage, arg1, arg2, arg3, arg4)	\
+				ucall(UCALL_SYNC, 6, "hello", stage, arg1, arg2, arg3, arg4)
+#define GUEST_SYNC(stage)	ucall(UCALL_SYNC, 2, "hello", stage)
+#define GUEST_SYNC1(arg0)	ucall(UCALL_SYNC, 1, arg0)
+#define GUEST_SYNC2(arg0, arg1)	ucall(UCALL_SYNC, 2, arg0, arg1)
+#define GUEST_SYNC3(arg0, arg1, arg2) \
+				ucall(UCALL_SYNC, 3, arg0, arg1, arg2)
+#define GUEST_SYNC4(arg0, arg1, arg2, arg3) \
+				ucall(UCALL_SYNC, 4, arg0, arg1, arg2, arg3)
+#define GUEST_SYNC5(arg0, arg1, arg2, arg3, arg4) \
+				ucall(UCALL_SYNC, 5, arg0, arg1, arg2, arg3, arg4)
+#define GUEST_SYNC6(arg0, arg1, arg2, arg3, arg4, arg5) \
+				ucall(UCALL_SYNC, 6, arg0, arg1, arg2, arg3, arg4, arg5)
+
+#define GUEST_PRINTF(_fmt, _args...) ucall_fmt(UCALL_PRINTF, _fmt, ##_args)
+#define GUEST_DONE()		ucall(UCALL_DONE, 0)
+
+#define REPORT_GUEST_PRINTF(ucall) pr_info("%s", (ucall).buffer)
+
+enum guest_assert_builtin_args {
+	GUEST_ERROR_STRING,
+	GUEST_FILE,
+	GUEST_LINE,
+	GUEST_ASSERT_BUILTIN_NARGS
+};
+
+#define ____GUEST_ASSERT(_condition, _exp, _fmt, _args...)				\
+do {											\
+	if (!(_condition))								\
+		ucall_assert(UCALL_ABORT, _exp, __FILE__, __LINE__, _fmt, ##_args);	\
+} while (0)
+
+#define __GUEST_ASSERT(_condition, _fmt, _args...)				\
+	____GUEST_ASSERT(_condition, #_condition, _fmt, ##_args)
+
+#define GUEST_ASSERT(_condition)						\
+	__GUEST_ASSERT(_condition, #_condition)
+
+#define GUEST_FAIL(_fmt, _args...)						\
+	ucall_assert(UCALL_ABORT, "Unconditional guest failure",		\
+		     __FILE__, __LINE__, _fmt, ##_args)
+
+#define GUEST_ASSERT_EQ(a, b)							\
+do {										\
+	typeof(a) __a = (a);							\
+	typeof(b) __b = (b);							\
+	____GUEST_ASSERT(__a == __b, #a " == " #b, "%#lx != %#lx (%s != %s)",	\
+			 (unsigned long)(__a), (unsigned long)(__b), #a, #b);	\
+} while (0)
+
+#define GUEST_ASSERT_NE(a, b)							\
+do {										\
+	typeof(a) __a = (a);							\
+	typeof(b) __b = (b);							\
+	____GUEST_ASSERT(__a != __b, #a " != " #b, "%#lx == %#lx (%s == %s)",	\
+			 (unsigned long)(__a), (unsigned long)(__b), #a, #b);	\
+} while (0)
+
+#define REPORT_GUEST_ASSERT(ucall)						\
+	test_assert(false, (const char *)(ucall).args[GUEST_ERROR_STRING],	\
+		    (const char *)(ucall).args[GUEST_FILE],			\
+		    (ucall).args[GUEST_LINE], "%s", (ucall).buffer)
+
+#endif /* SELFTEST_KVM_UCALL_COMMON_H */
diff --git a/tools/testing/selftests/kvm/include/userfaultfd_util.h b/tools/testing/selftests/kvm/include/userfaultfd_util.h
new file mode 100644
index 000000000000..60f7f9d435dc
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/userfaultfd_util.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * KVM userfaultfd util
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2019-2022 Google LLC
+ */
+#include <inttypes.h>
+#include <time.h>
+#include <pthread.h>
+#include <linux/userfaultfd.h>
+
+#include "test_util.h"
+
+typedef int (*uffd_handler_t)(int uffd_mode, int uffd, struct uffd_msg *msg);
+
+struct uffd_reader_args {
+	int uffd_mode;
+	int uffd;
+	useconds_t delay;
+	uffd_handler_t handler;
+	/* Holds the read end of the pipe for killing the reader. */
+	int pipe;
+};
+
+struct uffd_desc {
+	int uffd;
+	uint64_t num_readers;
+	/* Holds the write ends of the pipes for killing the readers. */
+	int *pipefds;
+	pthread_t *readers;
+	struct uffd_reader_args *reader_args;
+};
+
+struct uffd_desc *uffd_setup_demand_paging(int uffd_mode, useconds_t delay,
+					   void *hva, uint64_t len,
+					   uint64_t num_readers,
+					   uffd_handler_t handler);
+
+void uffd_stop_demand_paging(struct uffd_desc *uffd);
+
+#ifdef PRINT_PER_PAGE_UPDATES
+#define PER_PAGE_DEBUG(...) printf(__VA_ARGS__)
+#else
+#define PER_PAGE_DEBUG(...) _no_printf(__VA_ARGS__)
+#endif
+
+#ifdef PRINT_PER_VCPU_UPDATES
+#define PER_VCPU_DEBUG(...) printf(__VA_ARGS__)
+#else
+#define PER_VCPU_DEBUG(...) _no_printf(__VA_ARGS__)
+#endif
diff --git a/tools/testing/selftests/kvm/include/x86/apic.h b/tools/testing/selftests/kvm/include/x86/apic.h
new file mode 100644
index 000000000000..80fe9f69b38d
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/apic.h
@@ -0,0 +1,118 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2021, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_APIC_H
+#define SELFTEST_KVM_APIC_H
+
+#include <stdint.h>
+
+#include "processor.h"
+#include "ucall_common.h"
+
+#define APIC_DEFAULT_GPA		0xfee00000ULL
+
+/* APIC base address MSR and fields */
+#define MSR_IA32_APICBASE		0x0000001b
+#define MSR_IA32_APICBASE_BSP		(1<<8)
+#define MSR_IA32_APICBASE_EXTD		(1<<10)
+#define MSR_IA32_APICBASE_ENABLE	(1<<11)
+#define MSR_IA32_APICBASE_BASE		(0xfffff<<12)
+#define		GET_APIC_BASE(x)	(((x) >> 12) << 12)
+
+#define APIC_BASE_MSR	0x800
+#define X2APIC_ENABLE	(1UL << 10)
+#define	APIC_ID		0x20
+#define	APIC_LVR	0x30
+#define		GET_APIC_ID_FIELD(x)	(((x) >> 24) & 0xFF)
+#define	APIC_TASKPRI	0x80
+#define	APIC_PROCPRI	0xA0
+#define	APIC_EOI	0xB0
+#define	APIC_SPIV	0xF0
+#define		APIC_SPIV_FOCUS_DISABLED	(1 << 9)
+#define		APIC_SPIV_APIC_ENABLED		(1 << 8)
+#define APIC_IRR	0x200
+#define	APIC_ICR	0x300
+#define	APIC_LVTCMCI	0x2f0
+#define		APIC_DEST_SELF		0x40000
+#define		APIC_DEST_ALLINC	0x80000
+#define		APIC_DEST_ALLBUT	0xC0000
+#define		APIC_ICR_RR_MASK	0x30000
+#define		APIC_ICR_RR_INVALID	0x00000
+#define		APIC_ICR_RR_INPROG	0x10000
+#define		APIC_ICR_RR_VALID	0x20000
+#define		APIC_INT_LEVELTRIG	0x08000
+#define		APIC_INT_ASSERT		0x04000
+#define		APIC_ICR_BUSY		0x01000
+#define		APIC_DEST_LOGICAL	0x00800
+#define		APIC_DEST_PHYSICAL	0x00000
+#define		APIC_DM_FIXED		0x00000
+#define		APIC_DM_FIXED_MASK	0x00700
+#define		APIC_DM_LOWEST		0x00100
+#define		APIC_DM_SMI		0x00200
+#define		APIC_DM_REMRD		0x00300
+#define		APIC_DM_NMI		0x00400
+#define		APIC_DM_INIT		0x00500
+#define		APIC_DM_STARTUP		0x00600
+#define		APIC_DM_EXTINT		0x00700
+#define		APIC_VECTOR_MASK	0x000FF
+#define	APIC_ICR2	0x310
+#define		SET_APIC_DEST_FIELD(x)	((x) << 24)
+#define APIC_LVTT	0x320
+#define		APIC_LVT_TIMER_ONESHOT		(0 << 17)
+#define		APIC_LVT_TIMER_PERIODIC		(1 << 17)
+#define		APIC_LVT_TIMER_TSCDEADLINE	(2 << 17)
+#define		APIC_LVT_MASKED			(1 << 16)
+#define	APIC_TMICT	0x380
+#define	APIC_TMCCT	0x390
+#define	APIC_TDCR	0x3E0
+
+void apic_disable(void);
+void xapic_enable(void);
+void x2apic_enable(void);
+
+static inline uint32_t get_bsp_flag(void)
+{
+	return rdmsr(MSR_IA32_APICBASE) & MSR_IA32_APICBASE_BSP;
+}
+
+static inline uint32_t xapic_read_reg(unsigned int reg)
+{
+	return ((volatile uint32_t *)APIC_DEFAULT_GPA)[reg >> 2];
+}
+
+static inline void xapic_write_reg(unsigned int reg, uint32_t val)
+{
+	((volatile uint32_t *)APIC_DEFAULT_GPA)[reg >> 2] = val;
+}
+
+static inline uint64_t x2apic_read_reg(unsigned int reg)
+{
+	return rdmsr(APIC_BASE_MSR + (reg >> 4));
+}
+
+static inline uint8_t x2apic_write_reg_safe(unsigned int reg, uint64_t value)
+{
+	return wrmsr_safe(APIC_BASE_MSR + (reg >> 4), value);
+}
+
+static inline void x2apic_write_reg(unsigned int reg, uint64_t value)
+{
+	uint8_t fault = x2apic_write_reg_safe(reg, value);
+
+	__GUEST_ASSERT(!fault, "Unexpected fault 0x%x on WRMSR(%x) = %lx\n",
+		       fault, APIC_BASE_MSR + (reg >> 4), value);
+}
+
+static inline void x2apic_write_reg_fault(unsigned int reg, uint64_t value)
+{
+	uint8_t fault = x2apic_write_reg_safe(reg, value);
+
+	__GUEST_ASSERT(fault == GP_VECTOR,
+		       "Wanted #GP on WRMSR(%x) = %lx, got 0x%x\n",
+		       APIC_BASE_MSR + (reg >> 4), value, fault);
+}
+
+
+#endif /* SELFTEST_KVM_APIC_H */
diff --git a/tools/testing/selftests/kvm/include/x86/evmcs.h b/tools/testing/selftests/kvm/include/x86/evmcs.h
new file mode 100644
index 000000000000..5a74bb30e2f8
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/evmcs.h
@@ -0,0 +1,1276 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+
+#ifndef SELFTEST_KVM_EVMCS_H
+#define SELFTEST_KVM_EVMCS_H
+
+#include <stdint.h>
+#include "hyperv.h"
+#include "vmx.h"
+
+#define u16 uint16_t
+#define u32 uint32_t
+#define u64 uint64_t
+
+#define EVMCS_VERSION 1
+
+extern bool enable_evmcs;
+
+struct hv_enlightened_vmcs {
+	u32 revision_id;
+	u32 abort;
+
+	u16 host_es_selector;
+	u16 host_cs_selector;
+	u16 host_ss_selector;
+	u16 host_ds_selector;
+	u16 host_fs_selector;
+	u16 host_gs_selector;
+	u16 host_tr_selector;
+
+	u16 padding16_1;
+
+	u64 host_ia32_pat;
+	u64 host_ia32_efer;
+
+	u64 host_cr0;
+	u64 host_cr3;
+	u64 host_cr4;
+
+	u64 host_ia32_sysenter_esp;
+	u64 host_ia32_sysenter_eip;
+	u64 host_rip;
+	u32 host_ia32_sysenter_cs;
+
+	u32 pin_based_vm_exec_control;
+	u32 vm_exit_controls;
+	u32 secondary_vm_exec_control;
+
+	u64 io_bitmap_a;
+	u64 io_bitmap_b;
+	u64 msr_bitmap;
+
+	u16 guest_es_selector;
+	u16 guest_cs_selector;
+	u16 guest_ss_selector;
+	u16 guest_ds_selector;
+	u16 guest_fs_selector;
+	u16 guest_gs_selector;
+	u16 guest_ldtr_selector;
+	u16 guest_tr_selector;
+
+	u32 guest_es_limit;
+	u32 guest_cs_limit;
+	u32 guest_ss_limit;
+	u32 guest_ds_limit;
+	u32 guest_fs_limit;
+	u32 guest_gs_limit;
+	u32 guest_ldtr_limit;
+	u32 guest_tr_limit;
+	u32 guest_gdtr_limit;
+	u32 guest_idtr_limit;
+
+	u32 guest_es_ar_bytes;
+	u32 guest_cs_ar_bytes;
+	u32 guest_ss_ar_bytes;
+	u32 guest_ds_ar_bytes;
+	u32 guest_fs_ar_bytes;
+	u32 guest_gs_ar_bytes;
+	u32 guest_ldtr_ar_bytes;
+	u32 guest_tr_ar_bytes;
+
+	u64 guest_es_base;
+	u64 guest_cs_base;
+	u64 guest_ss_base;
+	u64 guest_ds_base;
+	u64 guest_fs_base;
+	u64 guest_gs_base;
+	u64 guest_ldtr_base;
+	u64 guest_tr_base;
+	u64 guest_gdtr_base;
+	u64 guest_idtr_base;
+
+	u64 padding64_1[3];
+
+	u64 vm_exit_msr_store_addr;
+	u64 vm_exit_msr_load_addr;
+	u64 vm_entry_msr_load_addr;
+
+	u64 cr3_target_value0;
+	u64 cr3_target_value1;
+	u64 cr3_target_value2;
+	u64 cr3_target_value3;
+
+	u32 page_fault_error_code_mask;
+	u32 page_fault_error_code_match;
+
+	u32 cr3_target_count;
+	u32 vm_exit_msr_store_count;
+	u32 vm_exit_msr_load_count;
+	u32 vm_entry_msr_load_count;
+
+	u64 tsc_offset;
+	u64 virtual_apic_page_addr;
+	u64 vmcs_link_pointer;
+
+	u64 guest_ia32_debugctl;
+	u64 guest_ia32_pat;
+	u64 guest_ia32_efer;
+
+	u64 guest_pdptr0;
+	u64 guest_pdptr1;
+	u64 guest_pdptr2;
+	u64 guest_pdptr3;
+
+	u64 guest_pending_dbg_exceptions;
+	u64 guest_sysenter_esp;
+	u64 guest_sysenter_eip;
+
+	u32 guest_activity_state;
+	u32 guest_sysenter_cs;
+
+	u64 cr0_guest_host_mask;
+	u64 cr4_guest_host_mask;
+	u64 cr0_read_shadow;
+	u64 cr4_read_shadow;
+	u64 guest_cr0;
+	u64 guest_cr3;
+	u64 guest_cr4;
+	u64 guest_dr7;
+
+	u64 host_fs_base;
+	u64 host_gs_base;
+	u64 host_tr_base;
+	u64 host_gdtr_base;
+	u64 host_idtr_base;
+	u64 host_rsp;
+
+	u64 ept_pointer;
+
+	u16 virtual_processor_id;
+	u16 padding16_2[3];
+
+	u64 padding64_2[5];
+	u64 guest_physical_address;
+
+	u32 vm_instruction_error;
+	u32 vm_exit_reason;
+	u32 vm_exit_intr_info;
+	u32 vm_exit_intr_error_code;
+	u32 idt_vectoring_info_field;
+	u32 idt_vectoring_error_code;
+	u32 vm_exit_instruction_len;
+	u32 vmx_instruction_info;
+
+	u64 exit_qualification;
+	u64 exit_io_instruction_ecx;
+	u64 exit_io_instruction_esi;
+	u64 exit_io_instruction_edi;
+	u64 exit_io_instruction_eip;
+
+	u64 guest_linear_address;
+	u64 guest_rsp;
+	u64 guest_rflags;
+
+	u32 guest_interruptibility_info;
+	u32 cpu_based_vm_exec_control;
+	u32 exception_bitmap;
+	u32 vm_entry_controls;
+	u32 vm_entry_intr_info_field;
+	u32 vm_entry_exception_error_code;
+	u32 vm_entry_instruction_len;
+	u32 tpr_threshold;
+
+	u64 guest_rip;
+
+	u32 hv_clean_fields;
+	u32 padding32_1;
+	u32 hv_synthetic_controls;
+	struct {
+		u32 nested_flush_hypercall:1;
+		u32 msr_bitmap:1;
+		u32 reserved:30;
+	}  __packed hv_enlightenments_control;
+	u32 hv_vp_id;
+	u32 padding32_2;
+	u64 hv_vm_id;
+	u64 partition_assist_page;
+	u64 padding64_4[4];
+	u64 guest_bndcfgs;
+	u64 guest_ia32_perf_global_ctrl;
+	u64 guest_ia32_s_cet;
+	u64 guest_ssp;
+	u64 guest_ia32_int_ssp_table_addr;
+	u64 guest_ia32_lbr_ctl;
+	u64 padding64_5[2];
+	u64 xss_exit_bitmap;
+	u64 encls_exiting_bitmap;
+	u64 host_ia32_perf_global_ctrl;
+	u64 tsc_multiplier;
+	u64 host_ia32_s_cet;
+	u64 host_ssp;
+	u64 host_ia32_int_ssp_table_addr;
+	u64 padding64_6;
+} __packed;
+
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE                     0
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP                BIT(0)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP               BIT(1)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2             BIT(2)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1             BIT(3)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC             BIT(4)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT            BIT(5)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY            BIT(6)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN            BIT(7)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR                     BIT(8)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT             BIT(9)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC              BIT(10)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1               BIT(11)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2               BIT(12)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER             BIT(13)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1                BIT(14)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL    BIT(15)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL                      0xFFFF
+
+#define HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH 0x10000031
+
+extern struct hv_enlightened_vmcs *current_evmcs;
+
+int vcpu_enable_evmcs(struct kvm_vcpu *vcpu);
+
+static inline void evmcs_enable(void)
+{
+	enable_evmcs = true;
+}
+
+static inline int evmcs_vmptrld(uint64_t vmcs_pa, void *vmcs)
+{
+	current_vp_assist->current_nested_vmcs = vmcs_pa;
+	current_vp_assist->enlighten_vmentry = 1;
+
+	current_evmcs = vmcs;
+
+	return 0;
+}
+
+static inline bool load_evmcs(struct hyperv_test_pages *hv)
+{
+	if (evmcs_vmptrld(hv->enlightened_vmcs_gpa, hv->enlightened_vmcs))
+		return false;
+
+	current_evmcs->revision_id = EVMCS_VERSION;
+
+	return true;
+}
+
+static inline int evmcs_vmptrst(uint64_t *value)
+{
+	*value = current_vp_assist->current_nested_vmcs &
+		~HV_X64_MSR_VP_ASSIST_PAGE_ENABLE;
+
+	return 0;
+}
+
+static inline int evmcs_vmread(uint64_t encoding, uint64_t *value)
+{
+	switch (encoding) {
+	case GUEST_RIP:
+		*value = current_evmcs->guest_rip;
+		break;
+	case GUEST_RSP:
+		*value = current_evmcs->guest_rsp;
+		break;
+	case GUEST_RFLAGS:
+		*value = current_evmcs->guest_rflags;
+		break;
+	case HOST_IA32_PAT:
+		*value = current_evmcs->host_ia32_pat;
+		break;
+	case HOST_IA32_EFER:
+		*value = current_evmcs->host_ia32_efer;
+		break;
+	case HOST_CR0:
+		*value = current_evmcs->host_cr0;
+		break;
+	case HOST_CR3:
+		*value = current_evmcs->host_cr3;
+		break;
+	case HOST_CR4:
+		*value = current_evmcs->host_cr4;
+		break;
+	case HOST_IA32_SYSENTER_ESP:
+		*value = current_evmcs->host_ia32_sysenter_esp;
+		break;
+	case HOST_IA32_SYSENTER_EIP:
+		*value = current_evmcs->host_ia32_sysenter_eip;
+		break;
+	case HOST_RIP:
+		*value = current_evmcs->host_rip;
+		break;
+	case IO_BITMAP_A:
+		*value = current_evmcs->io_bitmap_a;
+		break;
+	case IO_BITMAP_B:
+		*value = current_evmcs->io_bitmap_b;
+		break;
+	case MSR_BITMAP:
+		*value = current_evmcs->msr_bitmap;
+		break;
+	case GUEST_ES_BASE:
+		*value = current_evmcs->guest_es_base;
+		break;
+	case GUEST_CS_BASE:
+		*value = current_evmcs->guest_cs_base;
+		break;
+	case GUEST_SS_BASE:
+		*value = current_evmcs->guest_ss_base;
+		break;
+	case GUEST_DS_BASE:
+		*value = current_evmcs->guest_ds_base;
+		break;
+	case GUEST_FS_BASE:
+		*value = current_evmcs->guest_fs_base;
+		break;
+	case GUEST_GS_BASE:
+		*value = current_evmcs->guest_gs_base;
+		break;
+	case GUEST_LDTR_BASE:
+		*value = current_evmcs->guest_ldtr_base;
+		break;
+	case GUEST_TR_BASE:
+		*value = current_evmcs->guest_tr_base;
+		break;
+	case GUEST_GDTR_BASE:
+		*value = current_evmcs->guest_gdtr_base;
+		break;
+	case GUEST_IDTR_BASE:
+		*value = current_evmcs->guest_idtr_base;
+		break;
+	case TSC_OFFSET:
+		*value = current_evmcs->tsc_offset;
+		break;
+	case VIRTUAL_APIC_PAGE_ADDR:
+		*value = current_evmcs->virtual_apic_page_addr;
+		break;
+	case VMCS_LINK_POINTER:
+		*value = current_evmcs->vmcs_link_pointer;
+		break;
+	case GUEST_IA32_DEBUGCTL:
+		*value = current_evmcs->guest_ia32_debugctl;
+		break;
+	case GUEST_IA32_PAT:
+		*value = current_evmcs->guest_ia32_pat;
+		break;
+	case GUEST_IA32_EFER:
+		*value = current_evmcs->guest_ia32_efer;
+		break;
+	case GUEST_PDPTR0:
+		*value = current_evmcs->guest_pdptr0;
+		break;
+	case GUEST_PDPTR1:
+		*value = current_evmcs->guest_pdptr1;
+		break;
+	case GUEST_PDPTR2:
+		*value = current_evmcs->guest_pdptr2;
+		break;
+	case GUEST_PDPTR3:
+		*value = current_evmcs->guest_pdptr3;
+		break;
+	case GUEST_PENDING_DBG_EXCEPTIONS:
+		*value = current_evmcs->guest_pending_dbg_exceptions;
+		break;
+	case GUEST_SYSENTER_ESP:
+		*value = current_evmcs->guest_sysenter_esp;
+		break;
+	case GUEST_SYSENTER_EIP:
+		*value = current_evmcs->guest_sysenter_eip;
+		break;
+	case CR0_GUEST_HOST_MASK:
+		*value = current_evmcs->cr0_guest_host_mask;
+		break;
+	case CR4_GUEST_HOST_MASK:
+		*value = current_evmcs->cr4_guest_host_mask;
+		break;
+	case CR0_READ_SHADOW:
+		*value = current_evmcs->cr0_read_shadow;
+		break;
+	case CR4_READ_SHADOW:
+		*value = current_evmcs->cr4_read_shadow;
+		break;
+	case GUEST_CR0:
+		*value = current_evmcs->guest_cr0;
+		break;
+	case GUEST_CR3:
+		*value = current_evmcs->guest_cr3;
+		break;
+	case GUEST_CR4:
+		*value = current_evmcs->guest_cr4;
+		break;
+	case GUEST_DR7:
+		*value = current_evmcs->guest_dr7;
+		break;
+	case HOST_FS_BASE:
+		*value = current_evmcs->host_fs_base;
+		break;
+	case HOST_GS_BASE:
+		*value = current_evmcs->host_gs_base;
+		break;
+	case HOST_TR_BASE:
+		*value = current_evmcs->host_tr_base;
+		break;
+	case HOST_GDTR_BASE:
+		*value = current_evmcs->host_gdtr_base;
+		break;
+	case HOST_IDTR_BASE:
+		*value = current_evmcs->host_idtr_base;
+		break;
+	case HOST_RSP:
+		*value = current_evmcs->host_rsp;
+		break;
+	case EPT_POINTER:
+		*value = current_evmcs->ept_pointer;
+		break;
+	case GUEST_BNDCFGS:
+		*value = current_evmcs->guest_bndcfgs;
+		break;
+	case XSS_EXIT_BITMAP:
+		*value = current_evmcs->xss_exit_bitmap;
+		break;
+	case GUEST_PHYSICAL_ADDRESS:
+		*value = current_evmcs->guest_physical_address;
+		break;
+	case EXIT_QUALIFICATION:
+		*value = current_evmcs->exit_qualification;
+		break;
+	case GUEST_LINEAR_ADDRESS:
+		*value = current_evmcs->guest_linear_address;
+		break;
+	case VM_EXIT_MSR_STORE_ADDR:
+		*value = current_evmcs->vm_exit_msr_store_addr;
+		break;
+	case VM_EXIT_MSR_LOAD_ADDR:
+		*value = current_evmcs->vm_exit_msr_load_addr;
+		break;
+	case VM_ENTRY_MSR_LOAD_ADDR:
+		*value = current_evmcs->vm_entry_msr_load_addr;
+		break;
+	case CR3_TARGET_VALUE0:
+		*value = current_evmcs->cr3_target_value0;
+		break;
+	case CR3_TARGET_VALUE1:
+		*value = current_evmcs->cr3_target_value1;
+		break;
+	case CR3_TARGET_VALUE2:
+		*value = current_evmcs->cr3_target_value2;
+		break;
+	case CR3_TARGET_VALUE3:
+		*value = current_evmcs->cr3_target_value3;
+		break;
+	case TPR_THRESHOLD:
+		*value = current_evmcs->tpr_threshold;
+		break;
+	case GUEST_INTERRUPTIBILITY_INFO:
+		*value = current_evmcs->guest_interruptibility_info;
+		break;
+	case CPU_BASED_VM_EXEC_CONTROL:
+		*value = current_evmcs->cpu_based_vm_exec_control;
+		break;
+	case EXCEPTION_BITMAP:
+		*value = current_evmcs->exception_bitmap;
+		break;
+	case VM_ENTRY_CONTROLS:
+		*value = current_evmcs->vm_entry_controls;
+		break;
+	case VM_ENTRY_INTR_INFO_FIELD:
+		*value = current_evmcs->vm_entry_intr_info_field;
+		break;
+	case VM_ENTRY_EXCEPTION_ERROR_CODE:
+		*value = current_evmcs->vm_entry_exception_error_code;
+		break;
+	case VM_ENTRY_INSTRUCTION_LEN:
+		*value = current_evmcs->vm_entry_instruction_len;
+		break;
+	case HOST_IA32_SYSENTER_CS:
+		*value = current_evmcs->host_ia32_sysenter_cs;
+		break;
+	case PIN_BASED_VM_EXEC_CONTROL:
+		*value = current_evmcs->pin_based_vm_exec_control;
+		break;
+	case VM_EXIT_CONTROLS:
+		*value = current_evmcs->vm_exit_controls;
+		break;
+	case SECONDARY_VM_EXEC_CONTROL:
+		*value = current_evmcs->secondary_vm_exec_control;
+		break;
+	case GUEST_ES_LIMIT:
+		*value = current_evmcs->guest_es_limit;
+		break;
+	case GUEST_CS_LIMIT:
+		*value = current_evmcs->guest_cs_limit;
+		break;
+	case GUEST_SS_LIMIT:
+		*value = current_evmcs->guest_ss_limit;
+		break;
+	case GUEST_DS_LIMIT:
+		*value = current_evmcs->guest_ds_limit;
+		break;
+	case GUEST_FS_LIMIT:
+		*value = current_evmcs->guest_fs_limit;
+		break;
+	case GUEST_GS_LIMIT:
+		*value = current_evmcs->guest_gs_limit;
+		break;
+	case GUEST_LDTR_LIMIT:
+		*value = current_evmcs->guest_ldtr_limit;
+		break;
+	case GUEST_TR_LIMIT:
+		*value = current_evmcs->guest_tr_limit;
+		break;
+	case GUEST_GDTR_LIMIT:
+		*value = current_evmcs->guest_gdtr_limit;
+		break;
+	case GUEST_IDTR_LIMIT:
+		*value = current_evmcs->guest_idtr_limit;
+		break;
+	case GUEST_ES_AR_BYTES:
+		*value = current_evmcs->guest_es_ar_bytes;
+		break;
+	case GUEST_CS_AR_BYTES:
+		*value = current_evmcs->guest_cs_ar_bytes;
+		break;
+	case GUEST_SS_AR_BYTES:
+		*value = current_evmcs->guest_ss_ar_bytes;
+		break;
+	case GUEST_DS_AR_BYTES:
+		*value = current_evmcs->guest_ds_ar_bytes;
+		break;
+	case GUEST_FS_AR_BYTES:
+		*value = current_evmcs->guest_fs_ar_bytes;
+		break;
+	case GUEST_GS_AR_BYTES:
+		*value = current_evmcs->guest_gs_ar_bytes;
+		break;
+	case GUEST_LDTR_AR_BYTES:
+		*value = current_evmcs->guest_ldtr_ar_bytes;
+		break;
+	case GUEST_TR_AR_BYTES:
+		*value = current_evmcs->guest_tr_ar_bytes;
+		break;
+	case GUEST_ACTIVITY_STATE:
+		*value = current_evmcs->guest_activity_state;
+		break;
+	case GUEST_SYSENTER_CS:
+		*value = current_evmcs->guest_sysenter_cs;
+		break;
+	case VM_INSTRUCTION_ERROR:
+		*value = current_evmcs->vm_instruction_error;
+		break;
+	case VM_EXIT_REASON:
+		*value = current_evmcs->vm_exit_reason;
+		break;
+	case VM_EXIT_INTR_INFO:
+		*value = current_evmcs->vm_exit_intr_info;
+		break;
+	case VM_EXIT_INTR_ERROR_CODE:
+		*value = current_evmcs->vm_exit_intr_error_code;
+		break;
+	case IDT_VECTORING_INFO_FIELD:
+		*value = current_evmcs->idt_vectoring_info_field;
+		break;
+	case IDT_VECTORING_ERROR_CODE:
+		*value = current_evmcs->idt_vectoring_error_code;
+		break;
+	case VM_EXIT_INSTRUCTION_LEN:
+		*value = current_evmcs->vm_exit_instruction_len;
+		break;
+	case VMX_INSTRUCTION_INFO:
+		*value = current_evmcs->vmx_instruction_info;
+		break;
+	case PAGE_FAULT_ERROR_CODE_MASK:
+		*value = current_evmcs->page_fault_error_code_mask;
+		break;
+	case PAGE_FAULT_ERROR_CODE_MATCH:
+		*value = current_evmcs->page_fault_error_code_match;
+		break;
+	case CR3_TARGET_COUNT:
+		*value = current_evmcs->cr3_target_count;
+		break;
+	case VM_EXIT_MSR_STORE_COUNT:
+		*value = current_evmcs->vm_exit_msr_store_count;
+		break;
+	case VM_EXIT_MSR_LOAD_COUNT:
+		*value = current_evmcs->vm_exit_msr_load_count;
+		break;
+	case VM_ENTRY_MSR_LOAD_COUNT:
+		*value = current_evmcs->vm_entry_msr_load_count;
+		break;
+	case HOST_ES_SELECTOR:
+		*value = current_evmcs->host_es_selector;
+		break;
+	case HOST_CS_SELECTOR:
+		*value = current_evmcs->host_cs_selector;
+		break;
+	case HOST_SS_SELECTOR:
+		*value = current_evmcs->host_ss_selector;
+		break;
+	case HOST_DS_SELECTOR:
+		*value = current_evmcs->host_ds_selector;
+		break;
+	case HOST_FS_SELECTOR:
+		*value = current_evmcs->host_fs_selector;
+		break;
+	case HOST_GS_SELECTOR:
+		*value = current_evmcs->host_gs_selector;
+		break;
+	case HOST_TR_SELECTOR:
+		*value = current_evmcs->host_tr_selector;
+		break;
+	case GUEST_ES_SELECTOR:
+		*value = current_evmcs->guest_es_selector;
+		break;
+	case GUEST_CS_SELECTOR:
+		*value = current_evmcs->guest_cs_selector;
+		break;
+	case GUEST_SS_SELECTOR:
+		*value = current_evmcs->guest_ss_selector;
+		break;
+	case GUEST_DS_SELECTOR:
+		*value = current_evmcs->guest_ds_selector;
+		break;
+	case GUEST_FS_SELECTOR:
+		*value = current_evmcs->guest_fs_selector;
+		break;
+	case GUEST_GS_SELECTOR:
+		*value = current_evmcs->guest_gs_selector;
+		break;
+	case GUEST_LDTR_SELECTOR:
+		*value = current_evmcs->guest_ldtr_selector;
+		break;
+	case GUEST_TR_SELECTOR:
+		*value = current_evmcs->guest_tr_selector;
+		break;
+	case VIRTUAL_PROCESSOR_ID:
+		*value = current_evmcs->virtual_processor_id;
+		break;
+	case HOST_IA32_PERF_GLOBAL_CTRL:
+		*value = current_evmcs->host_ia32_perf_global_ctrl;
+		break;
+	case GUEST_IA32_PERF_GLOBAL_CTRL:
+		*value = current_evmcs->guest_ia32_perf_global_ctrl;
+		break;
+	case ENCLS_EXITING_BITMAP:
+		*value = current_evmcs->encls_exiting_bitmap;
+		break;
+	case TSC_MULTIPLIER:
+		*value = current_evmcs->tsc_multiplier;
+		break;
+	default: return 1;
+	}
+
+	return 0;
+}
+
+static inline int evmcs_vmwrite(uint64_t encoding, uint64_t value)
+{
+	switch (encoding) {
+	case GUEST_RIP:
+		current_evmcs->guest_rip = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case GUEST_RSP:
+		current_evmcs->guest_rsp = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC;
+		break;
+	case GUEST_RFLAGS:
+		current_evmcs->guest_rflags = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC;
+		break;
+	case HOST_IA32_PAT:
+		current_evmcs->host_ia32_pat = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_IA32_EFER:
+		current_evmcs->host_ia32_efer = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_CR0:
+		current_evmcs->host_cr0 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_CR3:
+		current_evmcs->host_cr3 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_CR4:
+		current_evmcs->host_cr4 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_IA32_SYSENTER_ESP:
+		current_evmcs->host_ia32_sysenter_esp = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_IA32_SYSENTER_EIP:
+		current_evmcs->host_ia32_sysenter_eip = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_RIP:
+		current_evmcs->host_rip = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case IO_BITMAP_A:
+		current_evmcs->io_bitmap_a = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP;
+		break;
+	case IO_BITMAP_B:
+		current_evmcs->io_bitmap_b = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP;
+		break;
+	case MSR_BITMAP:
+		current_evmcs->msr_bitmap = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP;
+		break;
+	case GUEST_ES_BASE:
+		current_evmcs->guest_es_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_CS_BASE:
+		current_evmcs->guest_cs_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_SS_BASE:
+		current_evmcs->guest_ss_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_DS_BASE:
+		current_evmcs->guest_ds_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_FS_BASE:
+		current_evmcs->guest_fs_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GS_BASE:
+		current_evmcs->guest_gs_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_LDTR_BASE:
+		current_evmcs->guest_ldtr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_TR_BASE:
+		current_evmcs->guest_tr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GDTR_BASE:
+		current_evmcs->guest_gdtr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_IDTR_BASE:
+		current_evmcs->guest_idtr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case TSC_OFFSET:
+		current_evmcs->tsc_offset = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	case VIRTUAL_APIC_PAGE_ADDR:
+		current_evmcs->virtual_apic_page_addr = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	case VMCS_LINK_POINTER:
+		current_evmcs->vmcs_link_pointer = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_IA32_DEBUGCTL:
+		current_evmcs->guest_ia32_debugctl = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_IA32_PAT:
+		current_evmcs->guest_ia32_pat = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_IA32_EFER:
+		current_evmcs->guest_ia32_efer = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_PDPTR0:
+		current_evmcs->guest_pdptr0 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_PDPTR1:
+		current_evmcs->guest_pdptr1 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_PDPTR2:
+		current_evmcs->guest_pdptr2 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_PDPTR3:
+		current_evmcs->guest_pdptr3 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_PENDING_DBG_EXCEPTIONS:
+		current_evmcs->guest_pending_dbg_exceptions = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_SYSENTER_ESP:
+		current_evmcs->guest_sysenter_esp = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_SYSENTER_EIP:
+		current_evmcs->guest_sysenter_eip = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case CR0_GUEST_HOST_MASK:
+		current_evmcs->cr0_guest_host_mask = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case CR4_GUEST_HOST_MASK:
+		current_evmcs->cr4_guest_host_mask = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case CR0_READ_SHADOW:
+		current_evmcs->cr0_read_shadow = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case CR4_READ_SHADOW:
+		current_evmcs->cr4_read_shadow = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case GUEST_CR0:
+		current_evmcs->guest_cr0 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case GUEST_CR3:
+		current_evmcs->guest_cr3 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case GUEST_CR4:
+		current_evmcs->guest_cr4 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case GUEST_DR7:
+		current_evmcs->guest_dr7 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR;
+		break;
+	case HOST_FS_BASE:
+		current_evmcs->host_fs_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case HOST_GS_BASE:
+		current_evmcs->host_gs_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case HOST_TR_BASE:
+		current_evmcs->host_tr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case HOST_GDTR_BASE:
+		current_evmcs->host_gdtr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case HOST_IDTR_BASE:
+		current_evmcs->host_idtr_base = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case HOST_RSP:
+		current_evmcs->host_rsp = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+		break;
+	case EPT_POINTER:
+		current_evmcs->ept_pointer = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT;
+		break;
+	case GUEST_BNDCFGS:
+		current_evmcs->guest_bndcfgs = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case XSS_EXIT_BITMAP:
+		current_evmcs->xss_exit_bitmap = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	case GUEST_PHYSICAL_ADDRESS:
+		current_evmcs->guest_physical_address = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case EXIT_QUALIFICATION:
+		current_evmcs->exit_qualification = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case GUEST_LINEAR_ADDRESS:
+		current_evmcs->guest_linear_address = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VM_EXIT_MSR_STORE_ADDR:
+		current_evmcs->vm_exit_msr_store_addr = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case VM_EXIT_MSR_LOAD_ADDR:
+		current_evmcs->vm_exit_msr_load_addr = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case VM_ENTRY_MSR_LOAD_ADDR:
+		current_evmcs->vm_entry_msr_load_addr = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case CR3_TARGET_VALUE0:
+		current_evmcs->cr3_target_value0 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case CR3_TARGET_VALUE1:
+		current_evmcs->cr3_target_value1 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case CR3_TARGET_VALUE2:
+		current_evmcs->cr3_target_value2 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case CR3_TARGET_VALUE3:
+		current_evmcs->cr3_target_value3 = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case TPR_THRESHOLD:
+		current_evmcs->tpr_threshold = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case GUEST_INTERRUPTIBILITY_INFO:
+		current_evmcs->guest_interruptibility_info = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC;
+		break;
+	case CPU_BASED_VM_EXEC_CONTROL:
+		current_evmcs->cpu_based_vm_exec_control = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC;
+		break;
+	case EXCEPTION_BITMAP:
+		current_evmcs->exception_bitmap = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN;
+		break;
+	case VM_ENTRY_CONTROLS:
+		current_evmcs->vm_entry_controls = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY;
+		break;
+	case VM_ENTRY_INTR_INFO_FIELD:
+		current_evmcs->vm_entry_intr_info_field = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT;
+		break;
+	case VM_ENTRY_EXCEPTION_ERROR_CODE:
+		current_evmcs->vm_entry_exception_error_code = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT;
+		break;
+	case VM_ENTRY_INSTRUCTION_LEN:
+		current_evmcs->vm_entry_instruction_len = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT;
+		break;
+	case HOST_IA32_SYSENTER_CS:
+		current_evmcs->host_ia32_sysenter_cs = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case PIN_BASED_VM_EXEC_CONTROL:
+		current_evmcs->pin_based_vm_exec_control = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1;
+		break;
+	case VM_EXIT_CONTROLS:
+		current_evmcs->vm_exit_controls = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1;
+		break;
+	case SECONDARY_VM_EXEC_CONTROL:
+		current_evmcs->secondary_vm_exec_control = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1;
+		break;
+	case GUEST_ES_LIMIT:
+		current_evmcs->guest_es_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_CS_LIMIT:
+		current_evmcs->guest_cs_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_SS_LIMIT:
+		current_evmcs->guest_ss_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_DS_LIMIT:
+		current_evmcs->guest_ds_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_FS_LIMIT:
+		current_evmcs->guest_fs_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GS_LIMIT:
+		current_evmcs->guest_gs_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_LDTR_LIMIT:
+		current_evmcs->guest_ldtr_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_TR_LIMIT:
+		current_evmcs->guest_tr_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GDTR_LIMIT:
+		current_evmcs->guest_gdtr_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_IDTR_LIMIT:
+		current_evmcs->guest_idtr_limit = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_ES_AR_BYTES:
+		current_evmcs->guest_es_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_CS_AR_BYTES:
+		current_evmcs->guest_cs_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_SS_AR_BYTES:
+		current_evmcs->guest_ss_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_DS_AR_BYTES:
+		current_evmcs->guest_ds_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_FS_AR_BYTES:
+		current_evmcs->guest_fs_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GS_AR_BYTES:
+		current_evmcs->guest_gs_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_LDTR_AR_BYTES:
+		current_evmcs->guest_ldtr_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_TR_AR_BYTES:
+		current_evmcs->guest_tr_ar_bytes = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_ACTIVITY_STATE:
+		current_evmcs->guest_activity_state = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case GUEST_SYSENTER_CS:
+		current_evmcs->guest_sysenter_cs = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case VM_INSTRUCTION_ERROR:
+		current_evmcs->vm_instruction_error = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VM_EXIT_REASON:
+		current_evmcs->vm_exit_reason = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VM_EXIT_INTR_INFO:
+		current_evmcs->vm_exit_intr_info = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VM_EXIT_INTR_ERROR_CODE:
+		current_evmcs->vm_exit_intr_error_code = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case IDT_VECTORING_INFO_FIELD:
+		current_evmcs->idt_vectoring_info_field = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case IDT_VECTORING_ERROR_CODE:
+		current_evmcs->idt_vectoring_error_code = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VM_EXIT_INSTRUCTION_LEN:
+		current_evmcs->vm_exit_instruction_len = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case VMX_INSTRUCTION_INFO:
+		current_evmcs->vmx_instruction_info = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE;
+		break;
+	case PAGE_FAULT_ERROR_CODE_MASK:
+		current_evmcs->page_fault_error_code_mask = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case PAGE_FAULT_ERROR_CODE_MATCH:
+		current_evmcs->page_fault_error_code_match = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case CR3_TARGET_COUNT:
+		current_evmcs->cr3_target_count = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case VM_EXIT_MSR_STORE_COUNT:
+		current_evmcs->vm_exit_msr_store_count = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case VM_EXIT_MSR_LOAD_COUNT:
+		current_evmcs->vm_exit_msr_load_count = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case VM_ENTRY_MSR_LOAD_COUNT:
+		current_evmcs->vm_entry_msr_load_count = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL;
+		break;
+	case HOST_ES_SELECTOR:
+		current_evmcs->host_es_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_CS_SELECTOR:
+		current_evmcs->host_cs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_SS_SELECTOR:
+		current_evmcs->host_ss_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_DS_SELECTOR:
+		current_evmcs->host_ds_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_FS_SELECTOR:
+		current_evmcs->host_fs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_GS_SELECTOR:
+		current_evmcs->host_gs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case HOST_TR_SELECTOR:
+		current_evmcs->host_tr_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case GUEST_ES_SELECTOR:
+		current_evmcs->guest_es_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_CS_SELECTOR:
+		current_evmcs->guest_cs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_SS_SELECTOR:
+		current_evmcs->guest_ss_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_DS_SELECTOR:
+		current_evmcs->guest_ds_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_FS_SELECTOR:
+		current_evmcs->guest_fs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_GS_SELECTOR:
+		current_evmcs->guest_gs_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_LDTR_SELECTOR:
+		current_evmcs->guest_ldtr_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case GUEST_TR_SELECTOR:
+		current_evmcs->guest_tr_selector = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2;
+		break;
+	case VIRTUAL_PROCESSOR_ID:
+		current_evmcs->virtual_processor_id = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT;
+		break;
+	case HOST_IA32_PERF_GLOBAL_CTRL:
+		current_evmcs->host_ia32_perf_global_ctrl = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+		break;
+	case GUEST_IA32_PERF_GLOBAL_CTRL:
+		current_evmcs->guest_ia32_perf_global_ctrl = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1;
+		break;
+	case ENCLS_EXITING_BITMAP:
+		current_evmcs->encls_exiting_bitmap = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	case TSC_MULTIPLIER:
+		current_evmcs->tsc_multiplier = value;
+		current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2;
+		break;
+	default: return 1;
+	}
+
+	return 0;
+}
+
+static inline int evmcs_vmlaunch(void)
+{
+	int ret;
+
+	current_evmcs->hv_clean_fields = 0;
+
+	__asm__ __volatile__("push %%rbp;"
+			     "push %%rcx;"
+			     "push %%rdx;"
+			     "push %%rsi;"
+			     "push %%rdi;"
+			     "push $0;"
+			     "mov %%rsp, (%[host_rsp]);"
+			     "lea 1f(%%rip), %%rax;"
+			     "mov %%rax, (%[host_rip]);"
+			     "vmlaunch;"
+			     "incq (%%rsp);"
+			     "1: pop %%rax;"
+			     "pop %%rdi;"
+			     "pop %%rsi;"
+			     "pop %%rdx;"
+			     "pop %%rcx;"
+			     "pop %%rbp;"
+			     : [ret]"=&a"(ret)
+			     : [host_rsp]"r"
+			       ((uint64_t)&current_evmcs->host_rsp),
+			       [host_rip]"r"
+			       ((uint64_t)&current_evmcs->host_rip)
+			     : "memory", "cc", "rbx", "r8", "r9", "r10",
+			       "r11", "r12", "r13", "r14", "r15");
+	return ret;
+}
+
+/*
+ * No guest state (e.g. GPRs) is established by this vmresume.
+ */
+static inline int evmcs_vmresume(void)
+{
+	int ret;
+
+	/* HOST_RIP */
+	current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1;
+	/* HOST_RSP */
+	current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER;
+
+	__asm__ __volatile__("push %%rbp;"
+			     "push %%rcx;"
+			     "push %%rdx;"
+			     "push %%rsi;"
+			     "push %%rdi;"
+			     "push $0;"
+			     "mov %%rsp, (%[host_rsp]);"
+			     "lea 1f(%%rip), %%rax;"
+			     "mov %%rax, (%[host_rip]);"
+			     "vmresume;"
+			     "incq (%%rsp);"
+			     "1: pop %%rax;"
+			     "pop %%rdi;"
+			     "pop %%rsi;"
+			     "pop %%rdx;"
+			     "pop %%rcx;"
+			     "pop %%rbp;"
+			     : [ret]"=&a"(ret)
+			     : [host_rsp]"r"
+			       ((uint64_t)&current_evmcs->host_rsp),
+			       [host_rip]"r"
+			       ((uint64_t)&current_evmcs->host_rip)
+			     : "memory", "cc", "rbx", "r8", "r9", "r10",
+			       "r11", "r12", "r13", "r14", "r15");
+	return ret;
+}
+
+#endif /* !SELFTEST_KVM_EVMCS_H */
diff --git a/tools/testing/selftests/kvm/include/x86/hyperv.h b/tools/testing/selftests/kvm/include/x86/hyperv.h
new file mode 100644
index 000000000000..f13e532be240
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/hyperv.h
@@ -0,0 +1,361 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2021, Red Hat, Inc.
+ */
+
+#ifndef SELFTEST_KVM_HYPERV_H
+#define SELFTEST_KVM_HYPERV_H
+
+#include "processor.h"
+
+#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS	0x40000000
+#define HYPERV_CPUID_INTERFACE			0x40000001
+#define HYPERV_CPUID_VERSION			0x40000002
+#define HYPERV_CPUID_FEATURES			0x40000003
+#define HYPERV_CPUID_ENLIGHTMENT_INFO		0x40000004
+#define HYPERV_CPUID_IMPLEMENT_LIMITS		0x40000005
+#define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES	0x40000007
+#define HYPERV_CPUID_NESTED_FEATURES		0x4000000A
+#define HYPERV_CPUID_SYNDBG_VENDOR_AND_MAX_FUNCTIONS	0x40000080
+#define HYPERV_CPUID_SYNDBG_INTERFACE			0x40000081
+#define HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES	0x40000082
+
+#define HV_X64_MSR_GUEST_OS_ID			0x40000000
+#define HV_X64_MSR_HYPERCALL			0x40000001
+#define HV_X64_MSR_VP_INDEX			0x40000002
+#define HV_X64_MSR_RESET			0x40000003
+#define HV_X64_MSR_VP_RUNTIME			0x40000010
+#define HV_X64_MSR_TIME_REF_COUNT		0x40000020
+#define HV_X64_MSR_REFERENCE_TSC		0x40000021
+#define HV_X64_MSR_TSC_FREQUENCY		0x40000022
+#define HV_X64_MSR_APIC_FREQUENCY		0x40000023
+#define HV_X64_MSR_EOI				0x40000070
+#define HV_X64_MSR_ICR				0x40000071
+#define HV_X64_MSR_TPR				0x40000072
+#define HV_X64_MSR_VP_ASSIST_PAGE		0x40000073
+#define HV_X64_MSR_SCONTROL			0x40000080
+#define HV_X64_MSR_SVERSION			0x40000081
+#define HV_X64_MSR_SIEFP			0x40000082
+#define HV_X64_MSR_SIMP				0x40000083
+#define HV_X64_MSR_EOM				0x40000084
+#define HV_X64_MSR_SINT0			0x40000090
+#define HV_X64_MSR_SINT1			0x40000091
+#define HV_X64_MSR_SINT2			0x40000092
+#define HV_X64_MSR_SINT3			0x40000093
+#define HV_X64_MSR_SINT4			0x40000094
+#define HV_X64_MSR_SINT5			0x40000095
+#define HV_X64_MSR_SINT6			0x40000096
+#define HV_X64_MSR_SINT7			0x40000097
+#define HV_X64_MSR_SINT8			0x40000098
+#define HV_X64_MSR_SINT9			0x40000099
+#define HV_X64_MSR_SINT10			0x4000009A
+#define HV_X64_MSR_SINT11			0x4000009B
+#define HV_X64_MSR_SINT12			0x4000009C
+#define HV_X64_MSR_SINT13			0x4000009D
+#define HV_X64_MSR_SINT14			0x4000009E
+#define HV_X64_MSR_SINT15			0x4000009F
+#define HV_X64_MSR_STIMER0_CONFIG		0x400000B0
+#define HV_X64_MSR_STIMER0_COUNT		0x400000B1
+#define HV_X64_MSR_STIMER1_CONFIG		0x400000B2
+#define HV_X64_MSR_STIMER1_COUNT		0x400000B3
+#define HV_X64_MSR_STIMER2_CONFIG		0x400000B4
+#define HV_X64_MSR_STIMER2_COUNT		0x400000B5
+#define HV_X64_MSR_STIMER3_CONFIG		0x400000B6
+#define HV_X64_MSR_STIMER3_COUNT		0x400000B7
+#define HV_X64_MSR_GUEST_IDLE			0x400000F0
+#define HV_X64_MSR_CRASH_P0			0x40000100
+#define HV_X64_MSR_CRASH_P1			0x40000101
+#define HV_X64_MSR_CRASH_P2			0x40000102
+#define HV_X64_MSR_CRASH_P3			0x40000103
+#define HV_X64_MSR_CRASH_P4			0x40000104
+#define HV_X64_MSR_CRASH_CTL			0x40000105
+#define HV_X64_MSR_REENLIGHTENMENT_CONTROL	0x40000106
+#define HV_X64_MSR_TSC_EMULATION_CONTROL	0x40000107
+#define HV_X64_MSR_TSC_EMULATION_STATUS		0x40000108
+#define HV_X64_MSR_TSC_INVARIANT_CONTROL	0x40000118
+
+#define HV_X64_MSR_SYNDBG_CONTROL		0x400000F1
+#define HV_X64_MSR_SYNDBG_STATUS		0x400000F2
+#define HV_X64_MSR_SYNDBG_SEND_BUFFER		0x400000F3
+#define HV_X64_MSR_SYNDBG_RECV_BUFFER		0x400000F4
+#define HV_X64_MSR_SYNDBG_PENDING_BUFFER	0x400000F5
+#define HV_X64_MSR_SYNDBG_OPTIONS		0x400000FF
+
+/* HYPERV_CPUID_FEATURES.EAX */
+#define HV_MSR_VP_RUNTIME_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 0)
+#define HV_MSR_TIME_REF_COUNT_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 1)
+#define HV_MSR_SYNIC_AVAILABLE			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 2)
+#define HV_MSR_SYNTIMER_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 3)
+#define HV_MSR_APIC_ACCESS_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 4)
+#define HV_MSR_HYPERCALL_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 5)
+#define HV_MSR_VP_INDEX_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 6)
+#define HV_MSR_RESET_AVAILABLE			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 7)
+#define HV_MSR_STAT_PAGES_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 8)
+#define HV_MSR_REFERENCE_TSC_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 9)
+#define HV_MSR_GUEST_IDLE_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 10)
+#define HV_ACCESS_FREQUENCY_MSRS		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 11)
+#define HV_ACCESS_REENLIGHTENMENT		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 13)
+#define HV_ACCESS_TSC_INVARIANT			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EAX, 15)
+
+/* HYPERV_CPUID_FEATURES.EBX */
+#define HV_CREATE_PARTITIONS		        \
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 0)
+#define HV_ACCESS_PARTITION_ID			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 1)
+#define HV_ACCESS_MEMORY_POOL			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 2)
+#define HV_ADJUST_MESSAGE_BUFFERS		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 3)
+#define HV_POST_MESSAGES			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 4)
+#define HV_SIGNAL_EVENTS			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 5)
+#define HV_CREATE_PORT				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 6)
+#define HV_CONNECT_PORT				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 7)
+#define HV_ACCESS_STATS				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 8)
+#define HV_DEBUGGING				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 11)
+#define HV_CPU_MANAGEMENT			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 12)
+#define HV_ENABLE_EXTENDED_HYPERCALLS		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 20)
+#define HV_ISOLATION				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EBX, 22)
+
+/* HYPERV_CPUID_FEATURES.EDX */
+#define HV_X64_MWAIT_AVAILABLE				\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 0)
+#define HV_X64_GUEST_DEBUGGING_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 1)
+#define HV_X64_PERF_MONITOR_AVAILABLE			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 2)
+#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE	\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 3)
+#define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 4)
+#define HV_X64_GUEST_IDLE_STATE_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 5)
+#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 8)
+#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 10)
+#define HV_FEATURE_DEBUG_MSRS_AVAILABLE			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 11)
+#define HV_STIMER_DIRECT_MODE_AVAILABLE			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_FEATURES, 0, EDX, 19)
+
+/* HYPERV_CPUID_ENLIGHTMENT_INFO.EAX */
+#define HV_X64_AS_SWITCH_RECOMMENDED			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 0)
+#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 1)
+#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 2)
+#define HV_X64_APIC_ACCESS_RECOMMENDED			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 3)
+#define HV_X64_SYSTEM_RESET_RECOMMENDED			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 4)
+#define HV_X64_RELAXED_TIMING_RECOMMENDED		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 5)
+#define HV_DEPRECATING_AEOI_RECOMMENDED			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 9)
+#define HV_X64_CLUSTER_IPI_RECOMMENDED			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 10)
+#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 11)
+#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EAX, 14)
+
+/* HYPERV_CPUID_NESTED_FEATURES.EAX */
+#define HV_X64_NESTED_DIRECT_FLUSH			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_NESTED_FEATURES, 0, EAX, 17)
+#define HV_X64_NESTED_GUEST_MAPPING_FLUSH		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_NESTED_FEATURES, 0, EAX, 18)
+#define HV_X64_NESTED_MSR_BITMAP			\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_NESTED_FEATURES, 0, EAX, 19)
+
+/* HYPERV_CPUID_NESTED_FEATURES.EBX */
+#define HV_X64_NESTED_EVMCS1_PERF_GLOBAL_CTRL		\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_NESTED_FEATURES, 0, EBX, 0)
+
+/* HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX */
+#define HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING	\
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES, 0, EAX, 1)
+
+/* Hypercalls */
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE	0x0002
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST	0x0003
+#define HVCALL_NOTIFY_LONG_SPIN_WAIT		0x0008
+#define HVCALL_SEND_IPI				0x000b
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX	0x0013
+#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX	0x0014
+#define HVCALL_SEND_IPI_EX			0x0015
+#define HVCALL_GET_PARTITION_ID			0x0046
+#define HVCALL_DEPOSIT_MEMORY			0x0048
+#define HVCALL_CREATE_VP			0x004e
+#define HVCALL_GET_VP_REGISTERS			0x0050
+#define HVCALL_SET_VP_REGISTERS			0x0051
+#define HVCALL_POST_MESSAGE			0x005c
+#define HVCALL_SIGNAL_EVENT			0x005d
+#define HVCALL_POST_DEBUG_DATA			0x0069
+#define HVCALL_RETRIEVE_DEBUG_DATA		0x006a
+#define HVCALL_RESET_DEBUG_SESSION		0x006b
+#define HVCALL_ADD_LOGICAL_PROCESSOR		0x0076
+#define HVCALL_MAP_DEVICE_INTERRUPT		0x007c
+#define HVCALL_UNMAP_DEVICE_INTERRUPT		0x007d
+#define HVCALL_RETARGET_INTERRUPT		0x007e
+#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af
+#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0
+
+/* Extended hypercalls */
+#define HV_EXT_CALL_QUERY_CAPABILITIES		0x8001
+
+#define HV_FLUSH_ALL_PROCESSORS			BIT(0)
+#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES	BIT(1)
+#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY	BIT(2)
+#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT	BIT(3)
+
+/* hypercall status code */
+#define HV_STATUS_SUCCESS			0
+#define HV_STATUS_INVALID_HYPERCALL_CODE	2
+#define HV_STATUS_INVALID_HYPERCALL_INPUT	3
+#define HV_STATUS_INVALID_ALIGNMENT		4
+#define HV_STATUS_INVALID_PARAMETER		5
+#define HV_STATUS_ACCESS_DENIED			6
+#define HV_STATUS_OPERATION_DENIED		8
+#define HV_STATUS_INSUFFICIENT_MEMORY		11
+#define HV_STATUS_INVALID_PORT_ID		17
+#define HV_STATUS_INVALID_CONNECTION_ID		18
+#define HV_STATUS_INSUFFICIENT_BUFFERS		19
+
+/* hypercall options */
+#define HV_HYPERCALL_FAST_BIT		BIT(16)
+#define HV_HYPERCALL_VARHEAD_OFFSET	17
+#define HV_HYPERCALL_REP_COMP_OFFSET	32
+
+/*
+ * Issue a Hyper-V hypercall. Returns exception vector raised or 0, 'hv_status'
+ * is set to the hypercall status (if no exception occurred).
+ */
+static inline uint8_t __hyperv_hypercall(u64 control, vm_vaddr_t input_address,
+					 vm_vaddr_t output_address,
+					 uint64_t *hv_status)
+{
+	uint64_t error_code;
+	uint8_t vector;
+
+	/* Note both the hypercall and the "asm safe" clobber r9-r11. */
+	asm volatile("mov %[output_address], %%r8\n\t"
+		     KVM_ASM_SAFE("vmcall")
+		     : "=a" (*hv_status),
+		       "+c" (control), "+d" (input_address),
+		       KVM_ASM_SAFE_OUTPUTS(vector, error_code)
+		     : [output_address] "r"(output_address),
+		       "a" (-EFAULT)
+		     : "cc", "memory", "r8", KVM_ASM_SAFE_CLOBBERS);
+	return vector;
+}
+
+/* Issue a Hyper-V hypercall and assert that it succeeded. */
+static inline void hyperv_hypercall(u64 control, vm_vaddr_t input_address,
+				    vm_vaddr_t output_address)
+{
+	uint64_t hv_status;
+	uint8_t vector;
+
+	vector = __hyperv_hypercall(control, input_address, output_address, &hv_status);
+
+	GUEST_ASSERT(!vector);
+	GUEST_ASSERT((hv_status & 0xffff) == 0);
+}
+
+/* Write 'Fast' hypercall input 'data' to the first 'n_sse_regs' SSE regs */
+static inline void hyperv_write_xmm_input(void *data, int n_sse_regs)
+{
+	int i;
+
+	for (i = 0; i < n_sse_regs; i++)
+		write_sse_reg(i, (sse128_t *)(data + sizeof(sse128_t) * i));
+}
+
+/* Proper HV_X64_MSR_GUEST_OS_ID value */
+#define HYPERV_LINUX_OS_ID ((u64)0x8100 << 48)
+
+#define HV_X64_MSR_VP_ASSIST_PAGE		0x40000073
+#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE	0x00000001
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT	12
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK	\
+		(~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+
+struct hv_nested_enlightenments_control {
+	struct {
+		__u32 directhypercall:1;
+		__u32 reserved:31;
+	} features;
+	struct {
+		__u32 reserved;
+	} hypercallControls;
+} __packed;
+
+/* Define virtual processor assist page structure. */
+struct hv_vp_assist_page {
+	__u32 apic_assist;
+	__u32 reserved1;
+	__u64 vtl_control[3];
+	struct hv_nested_enlightenments_control nested_control;
+	__u8 enlighten_vmentry;
+	__u8 reserved2[7];
+	__u64 current_nested_vmcs;
+} __packed;
+
+extern struct hv_vp_assist_page *current_vp_assist;
+
+int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist);
+
+struct hyperv_test_pages {
+	/* VP assist page */
+	void *vp_assist_hva;
+	uint64_t vp_assist_gpa;
+	void *vp_assist;
+
+	/* Partition assist page */
+	void *partition_assist_hva;
+	uint64_t partition_assist_gpa;
+	void *partition_assist;
+
+	/* Enlightened VMCS */
+	void *enlightened_vmcs_hva;
+	uint64_t enlightened_vmcs_gpa;
+	void *enlightened_vmcs;
+};
+
+struct hyperv_test_pages *vcpu_alloc_hyperv_test_pages(struct kvm_vm *vm,
+						       vm_vaddr_t *p_hv_pages_gva);
+
+/* HV_X64_MSR_TSC_INVARIANT_CONTROL bits */
+#define HV_INVARIANT_TSC_EXPOSED               BIT_ULL(0)
+
+const struct kvm_cpuid2 *kvm_get_supported_hv_cpuid(void);
+const struct kvm_cpuid2 *vcpu_get_supported_hv_cpuid(struct kvm_vcpu *vcpu);
+void vcpu_set_hv_cpuid(struct kvm_vcpu *vcpu);
+
+bool kvm_hv_cpu_has(struct kvm_x86_cpu_feature feature);
+
+#endif /* !SELFTEST_KVM_HYPERV_H */
diff --git a/tools/testing/selftests/kvm/include/x86/kvm_util_arch.h b/tools/testing/selftests/kvm/include/x86/kvm_util_arch.h
new file mode 100644
index 000000000000..972bb1c4ab4c
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/kvm_util_arch.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UTIL_ARCH_H
+#define SELFTEST_KVM_UTIL_ARCH_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "kvm_util_types.h"
+#include "test_util.h"
+
+extern bool is_forced_emulation_enabled;
+
+struct kvm_vm_arch {
+	vm_vaddr_t gdt;
+	vm_vaddr_t tss;
+	vm_vaddr_t idt;
+
+	uint64_t c_bit;
+	uint64_t s_bit;
+	int sev_fd;
+	bool is_pt_protected;
+};
+
+static inline bool __vm_arch_has_protected_memory(struct kvm_vm_arch *arch)
+{
+	return arch->c_bit || arch->s_bit;
+}
+
+#define vm_arch_has_protected_memory(vm) \
+	__vm_arch_has_protected_memory(&(vm)->arch)
+
+#define vcpu_arch_put_guest(mem, __val)							\
+do {											\
+	const typeof(mem) val = (__val);						\
+											\
+	if (!is_forced_emulation_enabled || guest_random_bool(&guest_rng)) {		\
+		(mem) = val;								\
+	} else if (guest_random_bool(&guest_rng)) {					\
+		__asm__ __volatile__(KVM_FEP "mov %1, %0"				\
+				     : "+m" (mem)					\
+				     : "r" (val) : "memory");				\
+	} else {									\
+		uint64_t __old = READ_ONCE(mem);					\
+											\
+		__asm__ __volatile__(KVM_FEP LOCK_PREFIX "cmpxchg %[new], %[ptr]"	\
+				     : [ptr] "+m" (mem), [old] "+a" (__old)		\
+				     : [new]"r" (val) : "memory", "cc");		\
+	}										\
+} while (0)
+
+#endif  // SELFTEST_KVM_UTIL_ARCH_H
diff --git a/tools/testing/selftests/kvm/include/x86/mce.h b/tools/testing/selftests/kvm/include/x86/mce.h
new file mode 100644
index 000000000000..295f2d554754
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/mce.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_MCE_H
+#define SELFTEST_KVM_MCE_H
+
+#define MCG_CTL_P		BIT_ULL(8)   /* MCG_CTL register available */
+#define MCG_SER_P		BIT_ULL(24)  /* MCA recovery/new status bits */
+#define MCG_LMCE_P		BIT_ULL(27)  /* Local machine check supported */
+#define MCG_CMCI_P		BIT_ULL(10)  /* CMCI supported */
+#define KVM_MAX_MCE_BANKS 32
+#define MCG_CAP_BANKS_MASK 0xff       /* Bit 0-7 of the MCG_CAP register are #banks */
+#define MCI_STATUS_VAL (1ULL << 63)   /* valid error */
+#define MCI_STATUS_UC (1ULL << 61)    /* uncorrected error */
+#define MCI_STATUS_EN (1ULL << 60)    /* error enabled */
+#define MCI_STATUS_MISCV (1ULL << 59) /* misc error reg. valid */
+#define MCI_STATUS_ADDRV (1ULL << 58) /* addr reg. valid */
+#define MCM_ADDR_PHYS 2    /* physical address */
+#define MCI_CTL2_CMCI_EN		BIT_ULL(30)
+
+#endif /* SELFTEST_KVM_MCE_H */
diff --git a/tools/testing/selftests/kvm/include/x86/pmu.h b/tools/testing/selftests/kvm/include/x86/pmu.h
new file mode 100644
index 000000000000..72575eadb63a
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/pmu.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2023, Tencent, Inc.
+ */
+#ifndef SELFTEST_KVM_PMU_H
+#define SELFTEST_KVM_PMU_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <linux/bits.h>
+
+#define KVM_PMU_EVENT_FILTER_MAX_EVENTS			300
+
+/*
+ * Encode an eventsel+umask pair into event-select MSR format.  Note, this is
+ * technically AMD's format, as Intel's format only supports 8 bits for the
+ * event selector, i.e. doesn't use bits 24:16 for the selector.  But, OR-ing
+ * in '0' is a nop and won't clobber the CMASK.
+ */
+#define RAW_EVENT(eventsel, umask) (((eventsel & 0xf00UL) << 24) |	\
+				    ((eventsel) & 0xff) |		\
+				    ((umask) & 0xff) << 8)
+
+/*
+ * These are technically Intel's definitions, but except for CMASK (see above),
+ * AMD's layout is compatible with Intel's.
+ */
+#define ARCH_PERFMON_EVENTSEL_EVENT		GENMASK_ULL(7, 0)
+#define ARCH_PERFMON_EVENTSEL_UMASK		GENMASK_ULL(15, 8)
+#define ARCH_PERFMON_EVENTSEL_USR		BIT_ULL(16)
+#define ARCH_PERFMON_EVENTSEL_OS		BIT_ULL(17)
+#define ARCH_PERFMON_EVENTSEL_EDGE		BIT_ULL(18)
+#define ARCH_PERFMON_EVENTSEL_PIN_CONTROL	BIT_ULL(19)
+#define ARCH_PERFMON_EVENTSEL_INT		BIT_ULL(20)
+#define ARCH_PERFMON_EVENTSEL_ANY		BIT_ULL(21)
+#define ARCH_PERFMON_EVENTSEL_ENABLE		BIT_ULL(22)
+#define ARCH_PERFMON_EVENTSEL_INV		BIT_ULL(23)
+#define ARCH_PERFMON_EVENTSEL_CMASK		GENMASK_ULL(31, 24)
+
+/* RDPMC control flags, Intel only. */
+#define INTEL_RDPMC_METRICS			BIT_ULL(29)
+#define INTEL_RDPMC_FIXED			BIT_ULL(30)
+#define INTEL_RDPMC_FAST			BIT_ULL(31)
+
+/* Fixed PMC controls, Intel only. */
+#define FIXED_PMC_GLOBAL_CTRL_ENABLE(_idx)	BIT_ULL((32 + (_idx)))
+
+#define FIXED_PMC_KERNEL			BIT_ULL(0)
+#define FIXED_PMC_USER				BIT_ULL(1)
+#define FIXED_PMC_ANYTHREAD			BIT_ULL(2)
+#define FIXED_PMC_ENABLE_PMI			BIT_ULL(3)
+#define FIXED_PMC_NR_BITS			4
+#define FIXED_PMC_CTRL(_idx, _val)		((_val) << ((_idx) * FIXED_PMC_NR_BITS))
+
+#define PMU_CAP_FW_WRITES			BIT_ULL(13)
+#define PMU_CAP_LBR_FMT				0x3f
+
+#define	INTEL_ARCH_CPU_CYCLES			RAW_EVENT(0x3c, 0x00)
+#define	INTEL_ARCH_INSTRUCTIONS_RETIRED		RAW_EVENT(0xc0, 0x00)
+#define	INTEL_ARCH_REFERENCE_CYCLES		RAW_EVENT(0x3c, 0x01)
+#define	INTEL_ARCH_LLC_REFERENCES		RAW_EVENT(0x2e, 0x4f)
+#define	INTEL_ARCH_LLC_MISSES			RAW_EVENT(0x2e, 0x41)
+#define	INTEL_ARCH_BRANCHES_RETIRED		RAW_EVENT(0xc4, 0x00)
+#define	INTEL_ARCH_BRANCHES_MISPREDICTED	RAW_EVENT(0xc5, 0x00)
+#define	INTEL_ARCH_TOPDOWN_SLOTS		RAW_EVENT(0xa4, 0x01)
+#define	INTEL_ARCH_TOPDOWN_BE_BOUND		RAW_EVENT(0xa4, 0x02)
+#define	INTEL_ARCH_TOPDOWN_BAD_SPEC		RAW_EVENT(0x73, 0x00)
+#define	INTEL_ARCH_TOPDOWN_FE_BOUND		RAW_EVENT(0x9c, 0x01)
+#define	INTEL_ARCH_TOPDOWN_RETIRING		RAW_EVENT(0xc2, 0x02)
+#define	INTEL_ARCH_LBR_INSERTS			RAW_EVENT(0xe4, 0x01)
+
+#define	AMD_ZEN_CORE_CYCLES			RAW_EVENT(0x76, 0x00)
+#define	AMD_ZEN_INSTRUCTIONS_RETIRED		RAW_EVENT(0xc0, 0x00)
+#define	AMD_ZEN_BRANCHES_RETIRED		RAW_EVENT(0xc2, 0x00)
+#define	AMD_ZEN_BRANCHES_MISPREDICTED		RAW_EVENT(0xc3, 0x00)
+
+/*
+ * Note!  The order and thus the index of the architectural events matters as
+ * support for each event is enumerated via CPUID using the index of the event.
+ */
+enum intel_pmu_architectural_events {
+	INTEL_ARCH_CPU_CYCLES_INDEX,
+	INTEL_ARCH_INSTRUCTIONS_RETIRED_INDEX,
+	INTEL_ARCH_REFERENCE_CYCLES_INDEX,
+	INTEL_ARCH_LLC_REFERENCES_INDEX,
+	INTEL_ARCH_LLC_MISSES_INDEX,
+	INTEL_ARCH_BRANCHES_RETIRED_INDEX,
+	INTEL_ARCH_BRANCHES_MISPREDICTED_INDEX,
+	INTEL_ARCH_TOPDOWN_SLOTS_INDEX,
+	INTEL_ARCH_TOPDOWN_BE_BOUND_INDEX,
+	INTEL_ARCH_TOPDOWN_BAD_SPEC_INDEX,
+	INTEL_ARCH_TOPDOWN_FE_BOUND_INDEX,
+	INTEL_ARCH_TOPDOWN_RETIRING_INDEX,
+	INTEL_ARCH_LBR_INSERTS_INDEX,
+	NR_INTEL_ARCH_EVENTS,
+};
+
+enum amd_pmu_zen_events {
+	AMD_ZEN_CORE_CYCLES_INDEX,
+	AMD_ZEN_INSTRUCTIONS_INDEX,
+	AMD_ZEN_BRANCHES_INDEX,
+	AMD_ZEN_BRANCH_MISSES_INDEX,
+	NR_AMD_ZEN_EVENTS,
+};
+
+extern const uint64_t intel_pmu_arch_events[];
+extern const uint64_t amd_pmu_zen_events[];
+
+enum pmu_errata {
+	INSTRUCTIONS_RETIRED_OVERCOUNT,
+	BRANCHES_RETIRED_OVERCOUNT,
+};
+extern uint64_t pmu_errata_mask;
+
+void kvm_init_pmu_errata(void);
+
+static inline bool this_pmu_has_errata(enum pmu_errata errata)
+{
+	return pmu_errata_mask & BIT_ULL(errata);
+}
+
+#endif /* SELFTEST_KVM_PMU_H */
diff --git a/tools/testing/selftests/kvm/include/x86/processor.h b/tools/testing/selftests/kvm/include/x86/processor.h
new file mode 100644
index 000000000000..57d62a425109
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/processor.h
@@ -0,0 +1,1497 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_PROCESSOR_H
+#define SELFTEST_KVM_PROCESSOR_H
+
+#include <assert.h>
+#include <stdint.h>
+#include <syscall.h>
+
+#include <asm/msr-index.h>
+#include <asm/prctl.h>
+
+#include <linux/kvm_para.h>
+#include <linux/stringify.h>
+
+#include "kvm_util.h"
+#include "ucall_common.h"
+
+extern bool host_cpu_is_intel;
+extern bool host_cpu_is_amd;
+extern uint64_t guest_tsc_khz;
+
+#ifndef MAX_NR_CPUID_ENTRIES
+#define MAX_NR_CPUID_ENTRIES 100
+#endif
+
+#define NONCANONICAL 0xaaaaaaaaaaaaaaaaull
+
+/* Forced emulation prefix, used to invoke the emulator unconditionally. */
+#define KVM_FEP "ud2; .byte 'k', 'v', 'm';"
+
+#define NMI_VECTOR		0x02
+
+const char *ex_str(int vector);
+
+#define X86_EFLAGS_FIXED	 (1u << 1)
+
+#define X86_CR4_VME		(1ul << 0)
+#define X86_CR4_PVI		(1ul << 1)
+#define X86_CR4_TSD		(1ul << 2)
+#define X86_CR4_DE		(1ul << 3)
+#define X86_CR4_PSE		(1ul << 4)
+#define X86_CR4_PAE		(1ul << 5)
+#define X86_CR4_MCE		(1ul << 6)
+#define X86_CR4_PGE		(1ul << 7)
+#define X86_CR4_PCE		(1ul << 8)
+#define X86_CR4_OSFXSR		(1ul << 9)
+#define X86_CR4_OSXMMEXCPT	(1ul << 10)
+#define X86_CR4_UMIP		(1ul << 11)
+#define X86_CR4_LA57		(1ul << 12)
+#define X86_CR4_VMXE		(1ul << 13)
+#define X86_CR4_SMXE		(1ul << 14)
+#define X86_CR4_FSGSBASE	(1ul << 16)
+#define X86_CR4_PCIDE		(1ul << 17)
+#define X86_CR4_OSXSAVE		(1ul << 18)
+#define X86_CR4_SMEP		(1ul << 20)
+#define X86_CR4_SMAP		(1ul << 21)
+#define X86_CR4_PKE		(1ul << 22)
+
+struct xstate_header {
+	u64				xstate_bv;
+	u64				xcomp_bv;
+	u64				reserved[6];
+} __attribute__((packed));
+
+struct xstate {
+	u8				i387[512];
+	struct xstate_header		header;
+	u8				extended_state_area[0];
+} __attribute__ ((packed, aligned (64)));
+
+#define XFEATURE_MASK_FP		BIT_ULL(0)
+#define XFEATURE_MASK_SSE		BIT_ULL(1)
+#define XFEATURE_MASK_YMM		BIT_ULL(2)
+#define XFEATURE_MASK_BNDREGS		BIT_ULL(3)
+#define XFEATURE_MASK_BNDCSR		BIT_ULL(4)
+#define XFEATURE_MASK_OPMASK		BIT_ULL(5)
+#define XFEATURE_MASK_ZMM_Hi256		BIT_ULL(6)
+#define XFEATURE_MASK_Hi16_ZMM		BIT_ULL(7)
+#define XFEATURE_MASK_PT		BIT_ULL(8)
+#define XFEATURE_MASK_PKRU		BIT_ULL(9)
+#define XFEATURE_MASK_PASID		BIT_ULL(10)
+#define XFEATURE_MASK_CET_USER		BIT_ULL(11)
+#define XFEATURE_MASK_CET_KERNEL	BIT_ULL(12)
+#define XFEATURE_MASK_LBR		BIT_ULL(15)
+#define XFEATURE_MASK_XTILE_CFG		BIT_ULL(17)
+#define XFEATURE_MASK_XTILE_DATA	BIT_ULL(18)
+
+#define XFEATURE_MASK_AVX512		(XFEATURE_MASK_OPMASK | \
+					 XFEATURE_MASK_ZMM_Hi256 | \
+					 XFEATURE_MASK_Hi16_ZMM)
+#define XFEATURE_MASK_XTILE		(XFEATURE_MASK_XTILE_DATA | \
+					 XFEATURE_MASK_XTILE_CFG)
+
+/* Note, these are ordered alphabetically to match kvm_cpuid_entry2.  Eww. */
+enum cpuid_output_regs {
+	KVM_CPUID_EAX,
+	KVM_CPUID_EBX,
+	KVM_CPUID_ECX,
+	KVM_CPUID_EDX
+};
+
+/*
+ * Pack the information into a 64-bit value so that each X86_FEATURE_XXX can be
+ * passed by value with no overhead.
+ */
+struct kvm_x86_cpu_feature {
+	u32	function;
+	u16	index;
+	u8	reg;
+	u8	bit;
+};
+#define	KVM_X86_CPU_FEATURE(fn, idx, gpr, __bit)				\
+({										\
+	struct kvm_x86_cpu_feature feature = {					\
+		.function = fn,							\
+		.index = idx,							\
+		.reg = KVM_CPUID_##gpr,						\
+		.bit = __bit,							\
+	};									\
+										\
+	kvm_static_assert((fn & 0xc0000000) == 0 ||				\
+			  (fn & 0xc0000000) == 0x40000000 ||			\
+			  (fn & 0xc0000000) == 0x80000000 ||			\
+			  (fn & 0xc0000000) == 0xc0000000);			\
+	kvm_static_assert(idx < BIT(sizeof(feature.index) * BITS_PER_BYTE));	\
+	feature;								\
+})
+
+/*
+ * Basic Leafs, a.k.a. Intel defined
+ */
+#define	X86_FEATURE_MWAIT		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 3)
+#define	X86_FEATURE_VMX			KVM_X86_CPU_FEATURE(0x1, 0, ECX, 5)
+#define	X86_FEATURE_SMX			KVM_X86_CPU_FEATURE(0x1, 0, ECX, 6)
+#define	X86_FEATURE_PDCM		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 15)
+#define	X86_FEATURE_PCID		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 17)
+#define X86_FEATURE_X2APIC		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 21)
+#define	X86_FEATURE_MOVBE		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 22)
+#define	X86_FEATURE_TSC_DEADLINE_TIMER	KVM_X86_CPU_FEATURE(0x1, 0, ECX, 24)
+#define	X86_FEATURE_XSAVE		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 26)
+#define	X86_FEATURE_OSXSAVE		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 27)
+#define	X86_FEATURE_RDRAND		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 30)
+#define	X86_FEATURE_HYPERVISOR		KVM_X86_CPU_FEATURE(0x1, 0, ECX, 31)
+#define X86_FEATURE_PAE			KVM_X86_CPU_FEATURE(0x1, 0, EDX, 6)
+#define	X86_FEATURE_MCE			KVM_X86_CPU_FEATURE(0x1, 0, EDX, 7)
+#define	X86_FEATURE_APIC		KVM_X86_CPU_FEATURE(0x1, 0, EDX, 9)
+#define	X86_FEATURE_CLFLUSH		KVM_X86_CPU_FEATURE(0x1, 0, EDX, 19)
+#define	X86_FEATURE_XMM			KVM_X86_CPU_FEATURE(0x1, 0, EDX, 25)
+#define	X86_FEATURE_XMM2		KVM_X86_CPU_FEATURE(0x1, 0, EDX, 26)
+#define	X86_FEATURE_FSGSBASE		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 0)
+#define	X86_FEATURE_TSC_ADJUST		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 1)
+#define	X86_FEATURE_SGX			KVM_X86_CPU_FEATURE(0x7, 0, EBX, 2)
+#define	X86_FEATURE_HLE			KVM_X86_CPU_FEATURE(0x7, 0, EBX, 4)
+#define	X86_FEATURE_SMEP	        KVM_X86_CPU_FEATURE(0x7, 0, EBX, 7)
+#define	X86_FEATURE_INVPCID		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 10)
+#define	X86_FEATURE_RTM			KVM_X86_CPU_FEATURE(0x7, 0, EBX, 11)
+#define	X86_FEATURE_MPX			KVM_X86_CPU_FEATURE(0x7, 0, EBX, 14)
+#define	X86_FEATURE_SMAP		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 20)
+#define	X86_FEATURE_PCOMMIT		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 22)
+#define	X86_FEATURE_CLFLUSHOPT		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 23)
+#define	X86_FEATURE_CLWB		KVM_X86_CPU_FEATURE(0x7, 0, EBX, 24)
+#define	X86_FEATURE_UMIP		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 2)
+#define	X86_FEATURE_PKU			KVM_X86_CPU_FEATURE(0x7, 0, ECX, 3)
+#define	X86_FEATURE_OSPKE		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 4)
+#define	X86_FEATURE_LA57		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 16)
+#define	X86_FEATURE_RDPID		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 22)
+#define	X86_FEATURE_SGX_LC		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 30)
+#define	X86_FEATURE_SHSTK		KVM_X86_CPU_FEATURE(0x7, 0, ECX, 7)
+#define	X86_FEATURE_IBT			KVM_X86_CPU_FEATURE(0x7, 0, EDX, 20)
+#define	X86_FEATURE_AMX_TILE		KVM_X86_CPU_FEATURE(0x7, 0, EDX, 24)
+#define	X86_FEATURE_SPEC_CTRL		KVM_X86_CPU_FEATURE(0x7, 0, EDX, 26)
+#define	X86_FEATURE_ARCH_CAPABILITIES	KVM_X86_CPU_FEATURE(0x7, 0, EDX, 29)
+#define	X86_FEATURE_PKS			KVM_X86_CPU_FEATURE(0x7, 0, ECX, 31)
+#define	X86_FEATURE_XTILECFG		KVM_X86_CPU_FEATURE(0xD, 0, EAX, 17)
+#define	X86_FEATURE_XTILEDATA		KVM_X86_CPU_FEATURE(0xD, 0, EAX, 18)
+#define	X86_FEATURE_XSAVES		KVM_X86_CPU_FEATURE(0xD, 1, EAX, 3)
+#define	X86_FEATURE_XFD			KVM_X86_CPU_FEATURE(0xD, 1, EAX, 4)
+#define X86_FEATURE_XTILEDATA_XFD	KVM_X86_CPU_FEATURE(0xD, 18, ECX, 2)
+
+/*
+ * Extended Leafs, a.k.a. AMD defined
+ */
+#define	X86_FEATURE_SVM			KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 2)
+#define	X86_FEATURE_PERFCTR_CORE	KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 23)
+#define	X86_FEATURE_PERFCTR_NB		KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 24)
+#define	X86_FEATURE_PERFCTR_LLC		KVM_X86_CPU_FEATURE(0x80000001, 0, ECX, 28)
+#define	X86_FEATURE_NX			KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 20)
+#define	X86_FEATURE_GBPAGES		KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 26)
+#define	X86_FEATURE_RDTSCP		KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 27)
+#define	X86_FEATURE_LM			KVM_X86_CPU_FEATURE(0x80000001, 0, EDX, 29)
+#define	X86_FEATURE_INVTSC		KVM_X86_CPU_FEATURE(0x80000007, 0, EDX, 8)
+#define	X86_FEATURE_RDPRU		KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 4)
+#define	X86_FEATURE_AMD_IBPB		KVM_X86_CPU_FEATURE(0x80000008, 0, EBX, 12)
+#define	X86_FEATURE_NPT			KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 0)
+#define	X86_FEATURE_LBRV		KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 1)
+#define	X86_FEATURE_NRIPS		KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 3)
+#define X86_FEATURE_TSCRATEMSR          KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 4)
+#define X86_FEATURE_PAUSEFILTER         KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 10)
+#define X86_FEATURE_PFTHRESHOLD         KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 12)
+#define	X86_FEATURE_VGIF		KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 16)
+#define X86_FEATURE_IDLE_HLT		KVM_X86_CPU_FEATURE(0x8000000A, 0, EDX, 30)
+#define X86_FEATURE_SEV			KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 1)
+#define X86_FEATURE_SEV_ES		KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 3)
+#define X86_FEATURE_SEV_SNP		KVM_X86_CPU_FEATURE(0x8000001F, 0, EAX, 4)
+#define	X86_FEATURE_PERFMON_V2		KVM_X86_CPU_FEATURE(0x80000022, 0, EAX, 0)
+#define	X86_FEATURE_LBR_PMC_FREEZE	KVM_X86_CPU_FEATURE(0x80000022, 0, EAX, 2)
+
+/*
+ * KVM defined paravirt features.
+ */
+#define X86_FEATURE_KVM_CLOCKSOURCE	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 0)
+#define X86_FEATURE_KVM_NOP_IO_DELAY	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 1)
+#define X86_FEATURE_KVM_MMU_OP		KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 2)
+#define X86_FEATURE_KVM_CLOCKSOURCE2	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 3)
+#define X86_FEATURE_KVM_ASYNC_PF	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 4)
+#define X86_FEATURE_KVM_STEAL_TIME	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 5)
+#define X86_FEATURE_KVM_PV_EOI		KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 6)
+#define X86_FEATURE_KVM_PV_UNHALT	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 7)
+/* Bit 8 apparently isn't used?!?! */
+#define X86_FEATURE_KVM_PV_TLB_FLUSH	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 9)
+#define X86_FEATURE_KVM_ASYNC_PF_VMEXIT	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 10)
+#define X86_FEATURE_KVM_PV_SEND_IPI	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 11)
+#define X86_FEATURE_KVM_POLL_CONTROL	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 12)
+#define X86_FEATURE_KVM_PV_SCHED_YIELD	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 13)
+#define X86_FEATURE_KVM_ASYNC_PF_INT	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 14)
+#define X86_FEATURE_KVM_MSI_EXT_DEST_ID	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 15)
+#define X86_FEATURE_KVM_HC_MAP_GPA_RANGE	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 16)
+#define X86_FEATURE_KVM_MIGRATION_CONTROL	KVM_X86_CPU_FEATURE(0x40000001, 0, EAX, 17)
+
+/*
+ * Same idea as X86_FEATURE_XXX, but X86_PROPERTY_XXX retrieves a multi-bit
+ * value/property as opposed to a single-bit feature.  Again, pack the info
+ * into a 64-bit value to pass by value with no overhead.
+ */
+struct kvm_x86_cpu_property {
+	u32	function;
+	u8	index;
+	u8	reg;
+	u8	lo_bit;
+	u8	hi_bit;
+};
+#define	KVM_X86_CPU_PROPERTY(fn, idx, gpr, low_bit, high_bit)			\
+({										\
+	struct kvm_x86_cpu_property property = {				\
+		.function = fn,							\
+		.index = idx,							\
+		.reg = KVM_CPUID_##gpr,						\
+		.lo_bit = low_bit,						\
+		.hi_bit = high_bit,						\
+	};									\
+										\
+	kvm_static_assert(low_bit < high_bit);					\
+	kvm_static_assert((fn & 0xc0000000) == 0 ||				\
+			  (fn & 0xc0000000) == 0x40000000 ||			\
+			  (fn & 0xc0000000) == 0x80000000 ||			\
+			  (fn & 0xc0000000) == 0xc0000000);			\
+	kvm_static_assert(idx < BIT(sizeof(property.index) * BITS_PER_BYTE));	\
+	property;								\
+})
+
+#define X86_PROPERTY_MAX_BASIC_LEAF		KVM_X86_CPU_PROPERTY(0, 0, EAX, 0, 31)
+#define X86_PROPERTY_PMU_VERSION		KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 0, 7)
+#define X86_PROPERTY_PMU_NR_GP_COUNTERS		KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 8, 15)
+#define X86_PROPERTY_PMU_GP_COUNTERS_BIT_WIDTH	KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 16, 23)
+#define X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH	KVM_X86_CPU_PROPERTY(0xa, 0, EAX, 24, 31)
+#define X86_PROPERTY_PMU_EVENTS_MASK		KVM_X86_CPU_PROPERTY(0xa, 0, EBX, 0, 12)
+#define X86_PROPERTY_PMU_FIXED_COUNTERS_BITMASK	KVM_X86_CPU_PROPERTY(0xa, 0, ECX, 0, 31)
+#define X86_PROPERTY_PMU_NR_FIXED_COUNTERS	KVM_X86_CPU_PROPERTY(0xa, 0, EDX, 0, 4)
+#define X86_PROPERTY_PMU_FIXED_COUNTERS_BIT_WIDTH	KVM_X86_CPU_PROPERTY(0xa, 0, EDX, 5, 12)
+
+#define X86_PROPERTY_SUPPORTED_XCR0_LO		KVM_X86_CPU_PROPERTY(0xd,  0, EAX,  0, 31)
+#define X86_PROPERTY_XSTATE_MAX_SIZE_XCR0	KVM_X86_CPU_PROPERTY(0xd,  0, EBX,  0, 31)
+#define X86_PROPERTY_XSTATE_MAX_SIZE		KVM_X86_CPU_PROPERTY(0xd,  0, ECX,  0, 31)
+#define X86_PROPERTY_SUPPORTED_XCR0_HI		KVM_X86_CPU_PROPERTY(0xd,  0, EDX,  0, 31)
+
+#define X86_PROPERTY_XSTATE_TILE_SIZE		KVM_X86_CPU_PROPERTY(0xd, 18, EAX,  0, 31)
+#define X86_PROPERTY_XSTATE_TILE_OFFSET		KVM_X86_CPU_PROPERTY(0xd, 18, EBX,  0, 31)
+#define X86_PROPERTY_AMX_MAX_PALETTE_TABLES	KVM_X86_CPU_PROPERTY(0x1d, 0, EAX,  0, 31)
+#define X86_PROPERTY_AMX_TOTAL_TILE_BYTES	KVM_X86_CPU_PROPERTY(0x1d, 1, EAX,  0, 15)
+#define X86_PROPERTY_AMX_BYTES_PER_TILE		KVM_X86_CPU_PROPERTY(0x1d, 1, EAX, 16, 31)
+#define X86_PROPERTY_AMX_BYTES_PER_ROW		KVM_X86_CPU_PROPERTY(0x1d, 1, EBX, 0,  15)
+#define X86_PROPERTY_AMX_NR_TILE_REGS		KVM_X86_CPU_PROPERTY(0x1d, 1, EBX, 16, 31)
+#define X86_PROPERTY_AMX_MAX_ROWS		KVM_X86_CPU_PROPERTY(0x1d, 1, ECX, 0,  15)
+
+#define X86_PROPERTY_MAX_KVM_LEAF		KVM_X86_CPU_PROPERTY(0x40000000, 0, EAX, 0, 31)
+
+#define X86_PROPERTY_MAX_EXT_LEAF		KVM_X86_CPU_PROPERTY(0x80000000, 0, EAX, 0, 31)
+#define X86_PROPERTY_MAX_PHY_ADDR		KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 0, 7)
+#define X86_PROPERTY_MAX_VIRT_ADDR		KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 8, 15)
+#define X86_PROPERTY_GUEST_MAX_PHY_ADDR		KVM_X86_CPU_PROPERTY(0x80000008, 0, EAX, 16, 23)
+#define X86_PROPERTY_SEV_C_BIT			KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 0, 5)
+#define X86_PROPERTY_PHYS_ADDR_REDUCTION	KVM_X86_CPU_PROPERTY(0x8000001F, 0, EBX, 6, 11)
+#define X86_PROPERTY_NR_PERFCTR_CORE		KVM_X86_CPU_PROPERTY(0x80000022, 0, EBX, 0, 3)
+#define X86_PROPERTY_NR_PERFCTR_NB		KVM_X86_CPU_PROPERTY(0x80000022, 0, EBX, 10, 15)
+
+#define X86_PROPERTY_MAX_CENTAUR_LEAF		KVM_X86_CPU_PROPERTY(0xC0000000, 0, EAX, 0, 31)
+
+/*
+ * Intel's architectural PMU events are bizarre.  They have a "feature" bit
+ * that indicates the feature is _not_ supported, and a property that states
+ * the length of the bit mask of unsupported features.  A feature is supported
+ * if the size of the bit mask is larger than the "unavailable" bit, and said
+ * bit is not set.  Fixed counters also bizarre enumeration, but inverted from
+ * arch events for general purpose counters.  Fixed counters are supported if a
+ * feature flag is set **OR** the total number of fixed counters is greater
+ * than index of the counter.
+ *
+ * Wrap the events for general purpose and fixed counters to simplify checking
+ * whether or not a given architectural event is supported.
+ */
+struct kvm_x86_pmu_feature {
+	struct kvm_x86_cpu_feature f;
+};
+#define	KVM_X86_PMU_FEATURE(__reg, __bit)				\
+({									\
+	struct kvm_x86_pmu_feature feature = {				\
+		.f = KVM_X86_CPU_FEATURE(0xa, 0, __reg, __bit),		\
+	};								\
+									\
+	kvm_static_assert(KVM_CPUID_##__reg == KVM_CPUID_EBX ||		\
+			  KVM_CPUID_##__reg == KVM_CPUID_ECX);		\
+	feature;							\
+})
+
+#define X86_PMU_FEATURE_CPU_CYCLES			KVM_X86_PMU_FEATURE(EBX, 0)
+#define X86_PMU_FEATURE_INSNS_RETIRED			KVM_X86_PMU_FEATURE(EBX, 1)
+#define X86_PMU_FEATURE_REFERENCE_CYCLES		KVM_X86_PMU_FEATURE(EBX, 2)
+#define X86_PMU_FEATURE_LLC_REFERENCES			KVM_X86_PMU_FEATURE(EBX, 3)
+#define X86_PMU_FEATURE_LLC_MISSES			KVM_X86_PMU_FEATURE(EBX, 4)
+#define X86_PMU_FEATURE_BRANCH_INSNS_RETIRED		KVM_X86_PMU_FEATURE(EBX, 5)
+#define X86_PMU_FEATURE_BRANCHES_MISPREDICTED		KVM_X86_PMU_FEATURE(EBX, 6)
+#define X86_PMU_FEATURE_TOPDOWN_SLOTS			KVM_X86_PMU_FEATURE(EBX, 7)
+#define X86_PMU_FEATURE_TOPDOWN_BE_BOUND		KVM_X86_PMU_FEATURE(EBX, 8)
+#define X86_PMU_FEATURE_TOPDOWN_BAD_SPEC		KVM_X86_PMU_FEATURE(EBX, 9)
+#define X86_PMU_FEATURE_TOPDOWN_FE_BOUND		KVM_X86_PMU_FEATURE(EBX, 10)
+#define X86_PMU_FEATURE_TOPDOWN_RETIRING		KVM_X86_PMU_FEATURE(EBX, 11)
+#define X86_PMU_FEATURE_LBR_INSERTS			KVM_X86_PMU_FEATURE(EBX, 12)
+
+#define X86_PMU_FEATURE_INSNS_RETIRED_FIXED		KVM_X86_PMU_FEATURE(ECX, 0)
+#define X86_PMU_FEATURE_CPU_CYCLES_FIXED		KVM_X86_PMU_FEATURE(ECX, 1)
+#define X86_PMU_FEATURE_REFERENCE_TSC_CYCLES_FIXED	KVM_X86_PMU_FEATURE(ECX, 2)
+#define X86_PMU_FEATURE_TOPDOWN_SLOTS_FIXED		KVM_X86_PMU_FEATURE(ECX, 3)
+
+static inline unsigned int x86_family(unsigned int eax)
+{
+	unsigned int x86;
+
+	x86 = (eax >> 8) & 0xf;
+
+	if (x86 == 0xf)
+		x86 += (eax >> 20) & 0xff;
+
+	return x86;
+}
+
+static inline unsigned int x86_model(unsigned int eax)
+{
+	return ((eax >> 12) & 0xf0) | ((eax >> 4) & 0x0f);
+}
+
+/* Page table bitfield declarations */
+#define PTE_PRESENT_MASK        BIT_ULL(0)
+#define PTE_WRITABLE_MASK       BIT_ULL(1)
+#define PTE_USER_MASK           BIT_ULL(2)
+#define PTE_ACCESSED_MASK       BIT_ULL(5)
+#define PTE_DIRTY_MASK          BIT_ULL(6)
+#define PTE_LARGE_MASK          BIT_ULL(7)
+#define PTE_GLOBAL_MASK         BIT_ULL(8)
+#define PTE_NX_MASK             BIT_ULL(63)
+
+#define PHYSICAL_PAGE_MASK      GENMASK_ULL(51, 12)
+
+#define PAGE_SHIFT		12
+#define PAGE_SIZE		(1ULL << PAGE_SHIFT)
+#define PAGE_MASK		(~(PAGE_SIZE-1) & PHYSICAL_PAGE_MASK)
+
+#define HUGEPAGE_SHIFT(x)	(PAGE_SHIFT + (((x) - 1) * 9))
+#define HUGEPAGE_SIZE(x)	(1UL << HUGEPAGE_SHIFT(x))
+#define HUGEPAGE_MASK(x)	(~(HUGEPAGE_SIZE(x) - 1) & PHYSICAL_PAGE_MASK)
+
+#define PTE_GET_PA(pte)		((pte) & PHYSICAL_PAGE_MASK)
+#define PTE_GET_PFN(pte)        (PTE_GET_PA(pte) >> PAGE_SHIFT)
+
+/* General Registers in 64-Bit Mode */
+struct gpr64_regs {
+	u64 rax;
+	u64 rcx;
+	u64 rdx;
+	u64 rbx;
+	u64 rsp;
+	u64 rbp;
+	u64 rsi;
+	u64 rdi;
+	u64 r8;
+	u64 r9;
+	u64 r10;
+	u64 r11;
+	u64 r12;
+	u64 r13;
+	u64 r14;
+	u64 r15;
+};
+
+struct desc64 {
+	uint16_t limit0;
+	uint16_t base0;
+	unsigned base1:8, type:4, s:1, dpl:2, p:1;
+	unsigned limit1:4, avl:1, l:1, db:1, g:1, base2:8;
+	uint32_t base3;
+	uint32_t zero1;
+} __attribute__((packed));
+
+struct desc_ptr {
+	uint16_t size;
+	uint64_t address;
+} __attribute__((packed));
+
+struct kvm_x86_state {
+	struct kvm_xsave *xsave;
+	struct kvm_vcpu_events events;
+	struct kvm_mp_state mp_state;
+	struct kvm_regs regs;
+	struct kvm_xcrs xcrs;
+	struct kvm_sregs sregs;
+	struct kvm_debugregs debugregs;
+	union {
+		struct kvm_nested_state nested;
+		char nested_[16384];
+	};
+	struct kvm_msrs msrs;
+};
+
+static inline uint64_t get_desc64_base(const struct desc64 *desc)
+{
+	return ((uint64_t)desc->base3 << 32) |
+		(desc->base0 | ((desc->base1) << 16) | ((desc->base2) << 24));
+}
+
+static inline uint64_t rdtsc(void)
+{
+	uint32_t eax, edx;
+	uint64_t tsc_val;
+	/*
+	 * The lfence is to wait (on Intel CPUs) until all previous
+	 * instructions have been executed. If software requires RDTSC to be
+	 * executed prior to execution of any subsequent instruction, it can
+	 * execute LFENCE immediately after RDTSC
+	 */
+	__asm__ __volatile__("lfence; rdtsc; lfence" : "=a"(eax), "=d"(edx));
+	tsc_val = ((uint64_t)edx) << 32 | eax;
+	return tsc_val;
+}
+
+static inline uint64_t rdtscp(uint32_t *aux)
+{
+	uint32_t eax, edx;
+
+	__asm__ __volatile__("rdtscp" : "=a"(eax), "=d"(edx), "=c"(*aux));
+	return ((uint64_t)edx) << 32 | eax;
+}
+
+static inline uint64_t rdmsr(uint32_t msr)
+{
+	uint32_t a, d;
+
+	__asm__ __volatile__("rdmsr" : "=a"(a), "=d"(d) : "c"(msr) : "memory");
+
+	return a | ((uint64_t) d << 32);
+}
+
+static inline void wrmsr(uint32_t msr, uint64_t value)
+{
+	uint32_t a = value;
+	uint32_t d = value >> 32;
+
+	__asm__ __volatile__("wrmsr" :: "a"(a), "d"(d), "c"(msr) : "memory");
+}
+
+
+static inline uint16_t inw(uint16_t port)
+{
+	uint16_t tmp;
+
+	__asm__ __volatile__("in %%dx, %%ax"
+		: /* output */ "=a" (tmp)
+		: /* input */ "d" (port));
+
+	return tmp;
+}
+
+static inline uint16_t get_es(void)
+{
+	uint16_t es;
+
+	__asm__ __volatile__("mov %%es, %[es]"
+			     : /* output */ [es]"=rm"(es));
+	return es;
+}
+
+static inline uint16_t get_cs(void)
+{
+	uint16_t cs;
+
+	__asm__ __volatile__("mov %%cs, %[cs]"
+			     : /* output */ [cs]"=rm"(cs));
+	return cs;
+}
+
+static inline uint16_t get_ss(void)
+{
+	uint16_t ss;
+
+	__asm__ __volatile__("mov %%ss, %[ss]"
+			     : /* output */ [ss]"=rm"(ss));
+	return ss;
+}
+
+static inline uint16_t get_ds(void)
+{
+	uint16_t ds;
+
+	__asm__ __volatile__("mov %%ds, %[ds]"
+			     : /* output */ [ds]"=rm"(ds));
+	return ds;
+}
+
+static inline uint16_t get_fs(void)
+{
+	uint16_t fs;
+
+	__asm__ __volatile__("mov %%fs, %[fs]"
+			     : /* output */ [fs]"=rm"(fs));
+	return fs;
+}
+
+static inline uint16_t get_gs(void)
+{
+	uint16_t gs;
+
+	__asm__ __volatile__("mov %%gs, %[gs]"
+			     : /* output */ [gs]"=rm"(gs));
+	return gs;
+}
+
+static inline uint16_t get_tr(void)
+{
+	uint16_t tr;
+
+	__asm__ __volatile__("str %[tr]"
+			     : /* output */ [tr]"=rm"(tr));
+	return tr;
+}
+
+static inline uint64_t get_cr0(void)
+{
+	uint64_t cr0;
+
+	__asm__ __volatile__("mov %%cr0, %[cr0]"
+			     : /* output */ [cr0]"=r"(cr0));
+	return cr0;
+}
+
+static inline uint64_t get_cr3(void)
+{
+	uint64_t cr3;
+
+	__asm__ __volatile__("mov %%cr3, %[cr3]"
+			     : /* output */ [cr3]"=r"(cr3));
+	return cr3;
+}
+
+static inline uint64_t get_cr4(void)
+{
+	uint64_t cr4;
+
+	__asm__ __volatile__("mov %%cr4, %[cr4]"
+			     : /* output */ [cr4]"=r"(cr4));
+	return cr4;
+}
+
+static inline void set_cr4(uint64_t val)
+{
+	__asm__ __volatile__("mov %0, %%cr4" : : "r" (val) : "memory");
+}
+
+static inline void set_idt(const struct desc_ptr *idt_desc)
+{
+	__asm__ __volatile__("lidt %0"::"m"(*idt_desc));
+}
+
+static inline u64 xgetbv(u32 index)
+{
+	u32 eax, edx;
+
+	__asm__ __volatile__("xgetbv;"
+		     : "=a" (eax), "=d" (edx)
+		     : "c" (index));
+	return eax | ((u64)edx << 32);
+}
+
+static inline void xsetbv(u32 index, u64 value)
+{
+	u32 eax = value;
+	u32 edx = value >> 32;
+
+	__asm__ __volatile__("xsetbv" :: "a" (eax), "d" (edx), "c" (index));
+}
+
+static inline void wrpkru(u32 pkru)
+{
+	/* Note, ECX and EDX are architecturally required to be '0'. */
+	asm volatile(".byte 0x0f,0x01,0xef\n\t"
+		     : : "a" (pkru), "c"(0), "d"(0));
+}
+
+static inline struct desc_ptr get_gdt(void)
+{
+	struct desc_ptr gdt;
+	__asm__ __volatile__("sgdt %[gdt]"
+			     : /* output */ [gdt]"=m"(gdt));
+	return gdt;
+}
+
+static inline struct desc_ptr get_idt(void)
+{
+	struct desc_ptr idt;
+	__asm__ __volatile__("sidt %[idt]"
+			     : /* output */ [idt]"=m"(idt));
+	return idt;
+}
+
+static inline void outl(uint16_t port, uint32_t value)
+{
+	__asm__ __volatile__("outl %%eax, %%dx" : : "d"(port), "a"(value));
+}
+
+static inline void __cpuid(uint32_t function, uint32_t index,
+			   uint32_t *eax, uint32_t *ebx,
+			   uint32_t *ecx, uint32_t *edx)
+{
+	*eax = function;
+	*ecx = index;
+
+	asm volatile("cpuid"
+	    : "=a" (*eax),
+	      "=b" (*ebx),
+	      "=c" (*ecx),
+	      "=d" (*edx)
+	    : "0" (*eax), "2" (*ecx)
+	    : "memory");
+}
+
+static inline void cpuid(uint32_t function,
+			 uint32_t *eax, uint32_t *ebx,
+			 uint32_t *ecx, uint32_t *edx)
+{
+	return __cpuid(function, 0, eax, ebx, ecx, edx);
+}
+
+static inline uint32_t this_cpu_fms(void)
+{
+	uint32_t eax, ebx, ecx, edx;
+
+	cpuid(1, &eax, &ebx, &ecx, &edx);
+	return eax;
+}
+
+static inline uint32_t this_cpu_family(void)
+{
+	return x86_family(this_cpu_fms());
+}
+
+static inline uint32_t this_cpu_model(void)
+{
+	return x86_model(this_cpu_fms());
+}
+
+static inline bool this_cpu_vendor_string_is(const char *vendor)
+{
+	const uint32_t *chunk = (const uint32_t *)vendor;
+	uint32_t eax, ebx, ecx, edx;
+
+	cpuid(0, &eax, &ebx, &ecx, &edx);
+	return (ebx == chunk[0] && edx == chunk[1] && ecx == chunk[2]);
+}
+
+static inline bool this_cpu_is_intel(void)
+{
+	return this_cpu_vendor_string_is("GenuineIntel");
+}
+
+/*
+ * Exclude early K5 samples with a vendor string of "AMDisbetter!"
+ */
+static inline bool this_cpu_is_amd(void)
+{
+	return this_cpu_vendor_string_is("AuthenticAMD");
+}
+
+static inline uint32_t __this_cpu_has(uint32_t function, uint32_t index,
+				      uint8_t reg, uint8_t lo, uint8_t hi)
+{
+	uint32_t gprs[4];
+
+	__cpuid(function, index,
+		&gprs[KVM_CPUID_EAX], &gprs[KVM_CPUID_EBX],
+		&gprs[KVM_CPUID_ECX], &gprs[KVM_CPUID_EDX]);
+
+	return (gprs[reg] & GENMASK(hi, lo)) >> lo;
+}
+
+static inline bool this_cpu_has(struct kvm_x86_cpu_feature feature)
+{
+	return __this_cpu_has(feature.function, feature.index,
+			      feature.reg, feature.bit, feature.bit);
+}
+
+static inline uint32_t this_cpu_property(struct kvm_x86_cpu_property property)
+{
+	return __this_cpu_has(property.function, property.index,
+			      property.reg, property.lo_bit, property.hi_bit);
+}
+
+static __always_inline bool this_cpu_has_p(struct kvm_x86_cpu_property property)
+{
+	uint32_t max_leaf;
+
+	switch (property.function & 0xc0000000) {
+	case 0:
+		max_leaf = this_cpu_property(X86_PROPERTY_MAX_BASIC_LEAF);
+		break;
+	case 0x40000000:
+		max_leaf = this_cpu_property(X86_PROPERTY_MAX_KVM_LEAF);
+		break;
+	case 0x80000000:
+		max_leaf = this_cpu_property(X86_PROPERTY_MAX_EXT_LEAF);
+		break;
+	case 0xc0000000:
+		max_leaf = this_cpu_property(X86_PROPERTY_MAX_CENTAUR_LEAF);
+	}
+	return max_leaf >= property.function;
+}
+
+static inline bool this_pmu_has(struct kvm_x86_pmu_feature feature)
+{
+	uint32_t nr_bits;
+
+	if (feature.f.reg == KVM_CPUID_EBX) {
+		nr_bits = this_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH);
+		return nr_bits > feature.f.bit && !this_cpu_has(feature.f);
+	}
+
+	GUEST_ASSERT(feature.f.reg == KVM_CPUID_ECX);
+	nr_bits = this_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+	return nr_bits > feature.f.bit || this_cpu_has(feature.f);
+}
+
+static __always_inline uint64_t this_cpu_supported_xcr0(void)
+{
+	if (!this_cpu_has_p(X86_PROPERTY_SUPPORTED_XCR0_LO))
+		return 0;
+
+	return this_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_LO) |
+	       ((uint64_t)this_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_HI) << 32);
+}
+
+typedef u32		__attribute__((vector_size(16))) sse128_t;
+#define __sse128_u	union { sse128_t vec; u64 as_u64[2]; u32 as_u32[4]; }
+#define sse128_lo(x)	({ __sse128_u t; t.vec = x; t.as_u64[0]; })
+#define sse128_hi(x)	({ __sse128_u t; t.vec = x; t.as_u64[1]; })
+
+static inline void read_sse_reg(int reg, sse128_t *data)
+{
+	switch (reg) {
+	case 0:
+		asm("movdqa %%xmm0, %0" : "=m"(*data));
+		break;
+	case 1:
+		asm("movdqa %%xmm1, %0" : "=m"(*data));
+		break;
+	case 2:
+		asm("movdqa %%xmm2, %0" : "=m"(*data));
+		break;
+	case 3:
+		asm("movdqa %%xmm3, %0" : "=m"(*data));
+		break;
+	case 4:
+		asm("movdqa %%xmm4, %0" : "=m"(*data));
+		break;
+	case 5:
+		asm("movdqa %%xmm5, %0" : "=m"(*data));
+		break;
+	case 6:
+		asm("movdqa %%xmm6, %0" : "=m"(*data));
+		break;
+	case 7:
+		asm("movdqa %%xmm7, %0" : "=m"(*data));
+		break;
+	default:
+		BUG();
+	}
+}
+
+static inline void write_sse_reg(int reg, const sse128_t *data)
+{
+	switch (reg) {
+	case 0:
+		asm("movdqa %0, %%xmm0" : : "m"(*data));
+		break;
+	case 1:
+		asm("movdqa %0, %%xmm1" : : "m"(*data));
+		break;
+	case 2:
+		asm("movdqa %0, %%xmm2" : : "m"(*data));
+		break;
+	case 3:
+		asm("movdqa %0, %%xmm3" : : "m"(*data));
+		break;
+	case 4:
+		asm("movdqa %0, %%xmm4" : : "m"(*data));
+		break;
+	case 5:
+		asm("movdqa %0, %%xmm5" : : "m"(*data));
+		break;
+	case 6:
+		asm("movdqa %0, %%xmm6" : : "m"(*data));
+		break;
+	case 7:
+		asm("movdqa %0, %%xmm7" : : "m"(*data));
+		break;
+	default:
+		BUG();
+	}
+}
+
+static inline void cpu_relax(void)
+{
+	asm volatile("rep; nop" ::: "memory");
+}
+
+static inline void udelay(unsigned long usec)
+{
+	uint64_t start, now, cycles;
+
+	GUEST_ASSERT(guest_tsc_khz);
+	cycles = guest_tsc_khz / 1000 * usec;
+
+	/*
+	 * Deliberately don't PAUSE, a.k.a. cpu_relax(), so that the delay is
+	 * as accurate as possible, e.g. doesn't trigger PAUSE-Loop VM-Exits.
+	 */
+	start = rdtsc();
+	do {
+		now = rdtsc();
+	} while (now - start < cycles);
+}
+
+#define ud2()			\
+	__asm__ __volatile__(	\
+		"ud2\n"	\
+		)
+
+#define hlt()			\
+	__asm__ __volatile__(	\
+		"hlt\n"	\
+		)
+
+struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu);
+void vcpu_load_state(struct kvm_vcpu *vcpu, struct kvm_x86_state *state);
+void kvm_x86_state_cleanup(struct kvm_x86_state *state);
+
+const struct kvm_msr_list *kvm_get_msr_index_list(void);
+const struct kvm_msr_list *kvm_get_feature_msr_index_list(void);
+bool kvm_msr_is_in_save_restore_list(uint32_t msr_index);
+uint64_t kvm_get_feature_msr(uint64_t msr_index);
+
+static inline void vcpu_msrs_get(struct kvm_vcpu *vcpu,
+				 struct kvm_msrs *msrs)
+{
+	int r = __vcpu_ioctl(vcpu, KVM_GET_MSRS, msrs);
+
+	TEST_ASSERT(r == msrs->nmsrs,
+		    "KVM_GET_MSRS failed, r: %i (failed on MSR %x)",
+		    r, r < 0 || r >= msrs->nmsrs ? -1 : msrs->entries[r].index);
+}
+static inline void vcpu_msrs_set(struct kvm_vcpu *vcpu, struct kvm_msrs *msrs)
+{
+	int r = __vcpu_ioctl(vcpu, KVM_SET_MSRS, msrs);
+
+	TEST_ASSERT(r == msrs->nmsrs,
+		    "KVM_SET_MSRS failed, r: %i (failed on MSR %x)",
+		    r, r < 0 || r >= msrs->nmsrs ? -1 : msrs->entries[r].index);
+}
+static inline void vcpu_debugregs_get(struct kvm_vcpu *vcpu,
+				      struct kvm_debugregs *debugregs)
+{
+	vcpu_ioctl(vcpu, KVM_GET_DEBUGREGS, debugregs);
+}
+static inline void vcpu_debugregs_set(struct kvm_vcpu *vcpu,
+				      struct kvm_debugregs *debugregs)
+{
+	vcpu_ioctl(vcpu, KVM_SET_DEBUGREGS, debugregs);
+}
+static inline void vcpu_xsave_get(struct kvm_vcpu *vcpu,
+				  struct kvm_xsave *xsave)
+{
+	vcpu_ioctl(vcpu, KVM_GET_XSAVE, xsave);
+}
+static inline void vcpu_xsave2_get(struct kvm_vcpu *vcpu,
+				   struct kvm_xsave *xsave)
+{
+	vcpu_ioctl(vcpu, KVM_GET_XSAVE2, xsave);
+}
+static inline void vcpu_xsave_set(struct kvm_vcpu *vcpu,
+				  struct kvm_xsave *xsave)
+{
+	vcpu_ioctl(vcpu, KVM_SET_XSAVE, xsave);
+}
+static inline void vcpu_xcrs_get(struct kvm_vcpu *vcpu,
+				 struct kvm_xcrs *xcrs)
+{
+	vcpu_ioctl(vcpu, KVM_GET_XCRS, xcrs);
+}
+static inline void vcpu_xcrs_set(struct kvm_vcpu *vcpu, struct kvm_xcrs *xcrs)
+{
+	vcpu_ioctl(vcpu, KVM_SET_XCRS, xcrs);
+}
+
+const struct kvm_cpuid_entry2 *get_cpuid_entry(const struct kvm_cpuid2 *cpuid,
+					       uint32_t function, uint32_t index);
+const struct kvm_cpuid2 *kvm_get_supported_cpuid(void);
+
+static inline uint32_t kvm_cpu_fms(void)
+{
+	return get_cpuid_entry(kvm_get_supported_cpuid(), 0x1, 0)->eax;
+}
+
+static inline uint32_t kvm_cpu_family(void)
+{
+	return x86_family(kvm_cpu_fms());
+}
+
+static inline uint32_t kvm_cpu_model(void)
+{
+	return x86_model(kvm_cpu_fms());
+}
+
+bool kvm_cpuid_has(const struct kvm_cpuid2 *cpuid,
+		   struct kvm_x86_cpu_feature feature);
+
+static inline bool kvm_cpu_has(struct kvm_x86_cpu_feature feature)
+{
+	return kvm_cpuid_has(kvm_get_supported_cpuid(), feature);
+}
+
+uint32_t kvm_cpuid_property(const struct kvm_cpuid2 *cpuid,
+			    struct kvm_x86_cpu_property property);
+
+static inline uint32_t kvm_cpu_property(struct kvm_x86_cpu_property property)
+{
+	return kvm_cpuid_property(kvm_get_supported_cpuid(), property);
+}
+
+static __always_inline bool kvm_cpu_has_p(struct kvm_x86_cpu_property property)
+{
+	uint32_t max_leaf;
+
+	switch (property.function & 0xc0000000) {
+	case 0:
+		max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_BASIC_LEAF);
+		break;
+	case 0x40000000:
+		max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_KVM_LEAF);
+		break;
+	case 0x80000000:
+		max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_EXT_LEAF);
+		break;
+	case 0xc0000000:
+		max_leaf = kvm_cpu_property(X86_PROPERTY_MAX_CENTAUR_LEAF);
+	}
+	return max_leaf >= property.function;
+}
+
+static inline bool kvm_pmu_has(struct kvm_x86_pmu_feature feature)
+{
+	uint32_t nr_bits;
+
+	if (feature.f.reg == KVM_CPUID_EBX) {
+		nr_bits = kvm_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH);
+		return nr_bits > feature.f.bit && !kvm_cpu_has(feature.f);
+	}
+
+	TEST_ASSERT_EQ(feature.f.reg, KVM_CPUID_ECX);
+	nr_bits = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+	return nr_bits > feature.f.bit || kvm_cpu_has(feature.f);
+}
+
+static __always_inline uint64_t kvm_cpu_supported_xcr0(void)
+{
+	if (!kvm_cpu_has_p(X86_PROPERTY_SUPPORTED_XCR0_LO))
+		return 0;
+
+	return kvm_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_LO) |
+	       ((uint64_t)kvm_cpu_property(X86_PROPERTY_SUPPORTED_XCR0_HI) << 32);
+}
+
+static inline size_t kvm_cpuid2_size(int nr_entries)
+{
+	return sizeof(struct kvm_cpuid2) +
+	       sizeof(struct kvm_cpuid_entry2) * nr_entries;
+}
+
+/*
+ * Allocate a "struct kvm_cpuid2* instance, with the 0-length arrary of
+ * entries sized to hold @nr_entries.  The caller is responsible for freeing
+ * the struct.
+ */
+static inline struct kvm_cpuid2 *allocate_kvm_cpuid2(int nr_entries)
+{
+	struct kvm_cpuid2 *cpuid;
+
+	cpuid = malloc(kvm_cpuid2_size(nr_entries));
+	TEST_ASSERT(cpuid, "-ENOMEM when allocating kvm_cpuid2");
+
+	cpuid->nent = nr_entries;
+
+	return cpuid;
+}
+
+void vcpu_init_cpuid(struct kvm_vcpu *vcpu, const struct kvm_cpuid2 *cpuid);
+
+static inline void vcpu_get_cpuid(struct kvm_vcpu *vcpu)
+{
+	vcpu_ioctl(vcpu, KVM_GET_CPUID2, vcpu->cpuid);
+}
+
+static inline struct kvm_cpuid_entry2 *__vcpu_get_cpuid_entry(struct kvm_vcpu *vcpu,
+							      uint32_t function,
+							      uint32_t index)
+{
+	TEST_ASSERT(vcpu->cpuid, "Must do vcpu_init_cpuid() first (or equivalent)");
+
+	vcpu_get_cpuid(vcpu);
+
+	return (struct kvm_cpuid_entry2 *)get_cpuid_entry(vcpu->cpuid,
+							  function, index);
+}
+
+static inline struct kvm_cpuid_entry2 *vcpu_get_cpuid_entry(struct kvm_vcpu *vcpu,
+							    uint32_t function)
+{
+	return __vcpu_get_cpuid_entry(vcpu, function, 0);
+}
+
+static inline int __vcpu_set_cpuid(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	TEST_ASSERT(vcpu->cpuid, "Must do vcpu_init_cpuid() first");
+	r = __vcpu_ioctl(vcpu, KVM_SET_CPUID2, vcpu->cpuid);
+	if (r)
+		return r;
+
+	/* On success, refresh the cache to pick up adjustments made by KVM. */
+	vcpu_get_cpuid(vcpu);
+	return 0;
+}
+
+static inline void vcpu_set_cpuid(struct kvm_vcpu *vcpu)
+{
+	TEST_ASSERT(vcpu->cpuid, "Must do vcpu_init_cpuid() first");
+	vcpu_ioctl(vcpu, KVM_SET_CPUID2, vcpu->cpuid);
+
+	/* Refresh the cache to pick up adjustments made by KVM. */
+	vcpu_get_cpuid(vcpu);
+}
+
+void vcpu_set_cpuid_property(struct kvm_vcpu *vcpu,
+			     struct kvm_x86_cpu_property property,
+			     uint32_t value);
+void vcpu_set_cpuid_maxphyaddr(struct kvm_vcpu *vcpu, uint8_t maxphyaddr);
+
+void vcpu_clear_cpuid_entry(struct kvm_vcpu *vcpu, uint32_t function);
+
+static inline bool vcpu_cpuid_has(struct kvm_vcpu *vcpu,
+				  struct kvm_x86_cpu_feature feature)
+{
+	struct kvm_cpuid_entry2 *entry;
+
+	entry = __vcpu_get_cpuid_entry(vcpu, feature.function, feature.index);
+	return *((&entry->eax) + feature.reg) & BIT(feature.bit);
+}
+
+void vcpu_set_or_clear_cpuid_feature(struct kvm_vcpu *vcpu,
+				     struct kvm_x86_cpu_feature feature,
+				     bool set);
+
+static inline void vcpu_set_cpuid_feature(struct kvm_vcpu *vcpu,
+					  struct kvm_x86_cpu_feature feature)
+{
+	vcpu_set_or_clear_cpuid_feature(vcpu, feature, true);
+
+}
+
+static inline void vcpu_clear_cpuid_feature(struct kvm_vcpu *vcpu,
+					    struct kvm_x86_cpu_feature feature)
+{
+	vcpu_set_or_clear_cpuid_feature(vcpu, feature, false);
+}
+
+uint64_t vcpu_get_msr(struct kvm_vcpu *vcpu, uint64_t msr_index);
+int _vcpu_set_msr(struct kvm_vcpu *vcpu, uint64_t msr_index, uint64_t msr_value);
+
+/*
+ * Assert on an MSR access(es) and pretty print the MSR name when possible.
+ * Note, the caller provides the stringified name so that the name of macro is
+ * printed, not the value the macro resolves to (due to macro expansion).
+ */
+#define TEST_ASSERT_MSR(cond, fmt, msr, str, args...)				\
+do {										\
+	if (__builtin_constant_p(msr)) {					\
+		TEST_ASSERT(cond, fmt, str, args);				\
+	} else if (!(cond)) {							\
+		char buf[16];							\
+										\
+		snprintf(buf, sizeof(buf), "MSR 0x%x", msr);			\
+		TEST_ASSERT(cond, fmt, buf, args);				\
+	}									\
+} while (0)
+
+/*
+ * Returns true if KVM should return the last written value when reading an MSR
+ * from userspace, e.g. the MSR isn't a command MSR, doesn't emulate state that
+ * is changing, etc.  This is NOT an exhaustive list!  The intent is to filter
+ * out MSRs that are not durable _and_ that a selftest wants to write.
+ */
+static inline bool is_durable_msr(uint32_t msr)
+{
+	return msr != MSR_IA32_TSC;
+}
+
+#define vcpu_set_msr(vcpu, msr, val)							\
+do {											\
+	uint64_t r, v = val;								\
+											\
+	TEST_ASSERT_MSR(_vcpu_set_msr(vcpu, msr, v) == 1,				\
+			"KVM_SET_MSRS failed on %s, value = 0x%lx", msr, #msr, v);	\
+	if (!is_durable_msr(msr))							\
+		break;									\
+	r = vcpu_get_msr(vcpu, msr);							\
+	TEST_ASSERT_MSR(r == v, "Set %s to '0x%lx', got back '0x%lx'", msr, #msr, v, r);\
+} while (0)
+
+void kvm_get_cpu_address_width(unsigned int *pa_bits, unsigned int *va_bits);
+void kvm_init_vm_address_properties(struct kvm_vm *vm);
+
+struct ex_regs {
+	uint64_t rax, rcx, rdx, rbx;
+	uint64_t rbp, rsi, rdi;
+	uint64_t r8, r9, r10, r11;
+	uint64_t r12, r13, r14, r15;
+	uint64_t vector;
+	uint64_t error_code;
+	uint64_t rip;
+	uint64_t cs;
+	uint64_t rflags;
+};
+
+struct idt_entry {
+	uint16_t offset0;
+	uint16_t selector;
+	uint16_t ist : 3;
+	uint16_t : 5;
+	uint16_t type : 4;
+	uint16_t : 1;
+	uint16_t dpl : 2;
+	uint16_t p : 1;
+	uint16_t offset1;
+	uint32_t offset2; uint32_t reserved;
+};
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector,
+			void (*handler)(struct ex_regs *));
+
+/*
+ * Exception fixup morphs #DE to an arbitrary magic vector so that '0' can be
+ * used to signal "no expcetion".
+ */
+#define KVM_MAGIC_DE_VECTOR 0xff
+
+/* If a toddler were to say "abracadabra". */
+#define KVM_EXCEPTION_MAGIC 0xabacadabaULL
+
+/*
+ * KVM selftest exception fixup uses registers to coordinate with the exception
+ * handler, versus the kernel's in-memory tables and KVM-Unit-Tests's in-memory
+ * per-CPU data.  Using only registers avoids having to map memory into the
+ * guest, doesn't require a valid, stable GS.base, and reduces the risk of
+ * for recursive faults when accessing memory in the handler.  The downside to
+ * using registers is that it restricts what registers can be used by the actual
+ * instruction.  But, selftests are 64-bit only, making register* pressure a
+ * minor concern.  Use r9-r11 as they are volatile, i.e. don't need to be saved
+ * by the callee, and except for r11 are not implicit parameters to any
+ * instructions.  Ideally, fixup would use r8-r10 and thus avoid implicit
+ * parameters entirely, but Hyper-V's hypercall ABI uses r8 and testing Hyper-V
+ * is higher priority than testing non-faulting SYSCALL/SYSRET.
+ *
+ * Note, the fixup handler deliberately does not handle #DE, i.e. the vector
+ * is guaranteed to be non-zero on fault.
+ *
+ * REGISTER INPUTS:
+ * r9  = MAGIC
+ * r10 = RIP
+ * r11 = new RIP on fault
+ *
+ * REGISTER OUTPUTS:
+ * r9  = exception vector (non-zero)
+ * r10 = error code
+ */
+#define __KVM_ASM_SAFE(insn, fep)				\
+	"mov $" __stringify(KVM_EXCEPTION_MAGIC) ", %%r9\n\t"	\
+	"lea 1f(%%rip), %%r10\n\t"				\
+	"lea 2f(%%rip), %%r11\n\t"				\
+	fep "1: " insn "\n\t"					\
+	"xor %%r9, %%r9\n\t"					\
+	"2:\n\t"						\
+	"mov  %%r9b, %[vector]\n\t"				\
+	"mov  %%r10, %[error_code]\n\t"
+
+#define KVM_ASM_SAFE(insn) __KVM_ASM_SAFE(insn, "")
+#define KVM_ASM_SAFE_FEP(insn) __KVM_ASM_SAFE(insn, KVM_FEP)
+
+#define KVM_ASM_SAFE_OUTPUTS(v, ec)	[vector] "=qm"(v), [error_code] "=rm"(ec)
+#define KVM_ASM_SAFE_CLOBBERS	"r9", "r10", "r11"
+
+#define kvm_asm_safe(insn, inputs...)					\
+({									\
+	uint64_t ign_error_code;					\
+	uint8_t vector;							\
+									\
+	asm volatile(KVM_ASM_SAFE(insn)					\
+		     : KVM_ASM_SAFE_OUTPUTS(vector, ign_error_code)	\
+		     : inputs						\
+		     : KVM_ASM_SAFE_CLOBBERS);				\
+	vector;								\
+})
+
+#define kvm_asm_safe_ec(insn, error_code, inputs...)			\
+({									\
+	uint8_t vector;							\
+									\
+	asm volatile(KVM_ASM_SAFE(insn)					\
+		     : KVM_ASM_SAFE_OUTPUTS(vector, error_code)		\
+		     : inputs						\
+		     : KVM_ASM_SAFE_CLOBBERS);				\
+	vector;								\
+})
+
+#define kvm_asm_safe_fep(insn, inputs...)				\
+({									\
+	uint64_t ign_error_code;					\
+	uint8_t vector;							\
+									\
+	asm volatile(KVM_ASM_SAFE_FEP(insn)				\
+		     : KVM_ASM_SAFE_OUTPUTS(vector, ign_error_code)	\
+		     : inputs						\
+		     : KVM_ASM_SAFE_CLOBBERS);				\
+	vector;								\
+})
+
+#define kvm_asm_safe_ec_fep(insn, error_code, inputs...)		\
+({									\
+	uint8_t vector;							\
+									\
+	asm volatile(KVM_ASM_SAFE_FEP(insn)				\
+		     : KVM_ASM_SAFE_OUTPUTS(vector, error_code)		\
+		     : inputs						\
+		     : KVM_ASM_SAFE_CLOBBERS);				\
+	vector;								\
+})
+
+#define BUILD_READ_U64_SAFE_HELPER(insn, _fep, _FEP)			\
+static inline uint8_t insn##_safe ##_fep(uint32_t idx, uint64_t *val)	\
+{									\
+	uint64_t error_code;						\
+	uint8_t vector;							\
+	uint32_t a, d;							\
+									\
+	asm volatile(KVM_ASM_SAFE##_FEP(#insn)				\
+		     : "=a"(a), "=d"(d),				\
+		       KVM_ASM_SAFE_OUTPUTS(vector, error_code)		\
+		     : "c"(idx)						\
+		     : KVM_ASM_SAFE_CLOBBERS);				\
+									\
+	*val = (uint64_t)a | ((uint64_t)d << 32);			\
+	return vector;							\
+}
+
+/*
+ * Generate {insn}_safe() and {insn}_safe_fep() helpers for instructions that
+ * use ECX as in input index, and EDX:EAX as a 64-bit output.
+ */
+#define BUILD_READ_U64_SAFE_HELPERS(insn)				\
+	BUILD_READ_U64_SAFE_HELPER(insn, , )				\
+	BUILD_READ_U64_SAFE_HELPER(insn, _fep, _FEP)			\
+
+BUILD_READ_U64_SAFE_HELPERS(rdmsr)
+BUILD_READ_U64_SAFE_HELPERS(rdpmc)
+BUILD_READ_U64_SAFE_HELPERS(xgetbv)
+
+static inline uint8_t wrmsr_safe(uint32_t msr, uint64_t val)
+{
+	return kvm_asm_safe("wrmsr", "a"(val & -1u), "d"(val >> 32), "c"(msr));
+}
+
+static inline uint8_t xsetbv_safe(uint32_t index, uint64_t value)
+{
+	u32 eax = value;
+	u32 edx = value >> 32;
+
+	return kvm_asm_safe("xsetbv", "a" (eax), "d" (edx), "c" (index));
+}
+
+bool kvm_is_tdp_enabled(void);
+
+static inline bool get_kvm_intel_param_bool(const char *param)
+{
+	return kvm_get_module_param_bool("kvm_intel", param);
+}
+
+static inline bool get_kvm_amd_param_bool(const char *param)
+{
+	return kvm_get_module_param_bool("kvm_amd", param);
+}
+
+static inline int get_kvm_intel_param_integer(const char *param)
+{
+	return kvm_get_module_param_integer("kvm_intel", param);
+}
+
+static inline int get_kvm_amd_param_integer(const char *param)
+{
+	return kvm_get_module_param_integer("kvm_amd", param);
+}
+
+static inline bool kvm_is_pmu_enabled(void)
+{
+	return get_kvm_param_bool("enable_pmu");
+}
+
+static inline bool kvm_is_forced_emulation_enabled(void)
+{
+	return !!get_kvm_param_integer("force_emulation_prefix");
+}
+
+static inline bool kvm_is_unrestricted_guest_enabled(void)
+{
+	return get_kvm_intel_param_bool("unrestricted_guest");
+}
+
+static inline bool kvm_is_ignore_msrs(void)
+{
+	return get_kvm_param_bool("ignore_msrs");
+}
+
+uint64_t *__vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr,
+				    int *level);
+uint64_t *vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr);
+
+uint64_t kvm_hypercall(uint64_t nr, uint64_t a0, uint64_t a1, uint64_t a2,
+		       uint64_t a3);
+uint64_t __xen_hypercall(uint64_t nr, uint64_t a0, void *a1);
+void xen_hypercall(uint64_t nr, uint64_t a0, void *a1);
+
+static inline uint64_t __kvm_hypercall_map_gpa_range(uint64_t gpa,
+						     uint64_t size, uint64_t flags)
+{
+	return kvm_hypercall(KVM_HC_MAP_GPA_RANGE, gpa, size >> PAGE_SHIFT, flags, 0);
+}
+
+static inline void kvm_hypercall_map_gpa_range(uint64_t gpa, uint64_t size,
+					       uint64_t flags)
+{
+	uint64_t ret = __kvm_hypercall_map_gpa_range(gpa, size, flags);
+
+	GUEST_ASSERT(!ret);
+}
+
+/*
+ * Execute HLT in an STI interrupt shadow to ensure that a pending IRQ that's
+ * intended to be a wake event arrives *after* HLT is executed.  Modern CPUs,
+ * except for a few oddballs that KVM is unlikely to run on, block IRQs for one
+ * instruction after STI, *if* RFLAGS.IF=0 before STI.  Note, Intel CPUs may
+ * block other events beyond regular IRQs, e.g. may block NMIs and SMIs too.
+ */
+static inline void safe_halt(void)
+{
+	asm volatile("sti; hlt");
+}
+
+/*
+ * Enable interrupts and ensure that interrupts are evaluated upon return from
+ * this function, i.e. execute a nop to consume the STi interrupt shadow.
+ */
+static inline void sti_nop(void)
+{
+	asm volatile ("sti; nop");
+}
+
+/*
+ * Enable interrupts for one instruction (nop), to allow the CPU to process all
+ * interrupts that are already pending.
+ */
+static inline void sti_nop_cli(void)
+{
+	asm volatile ("sti; nop; cli");
+}
+
+static inline void sti(void)
+{
+	asm volatile("sti");
+}
+
+static inline void cli(void)
+{
+	asm volatile ("cli");
+}
+
+void __vm_xsave_require_permission(uint64_t xfeature, const char *name);
+
+#define vm_xsave_require_permission(xfeature)	\
+	__vm_xsave_require_permission(xfeature, #xfeature)
+
+enum pg_level {
+	PG_LEVEL_NONE,
+	PG_LEVEL_4K,
+	PG_LEVEL_2M,
+	PG_LEVEL_1G,
+	PG_LEVEL_512G,
+	PG_LEVEL_256T
+};
+
+#define PG_LEVEL_SHIFT(_level) ((_level - 1) * 9 + 12)
+#define PG_LEVEL_SIZE(_level) (1ull << PG_LEVEL_SHIFT(_level))
+
+#define PG_SIZE_4K PG_LEVEL_SIZE(PG_LEVEL_4K)
+#define PG_SIZE_2M PG_LEVEL_SIZE(PG_LEVEL_2M)
+#define PG_SIZE_1G PG_LEVEL_SIZE(PG_LEVEL_1G)
+
+void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, int level);
+void virt_map_level(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
+		    uint64_t nr_bytes, int level);
+
+/*
+ * Basic CPU control in CR0
+ */
+#define X86_CR0_PE          (1UL<<0) /* Protection Enable */
+#define X86_CR0_MP          (1UL<<1) /* Monitor Coprocessor */
+#define X86_CR0_EM          (1UL<<2) /* Emulation */
+#define X86_CR0_TS          (1UL<<3) /* Task Switched */
+#define X86_CR0_ET          (1UL<<4) /* Extension Type */
+#define X86_CR0_NE          (1UL<<5) /* Numeric Error */
+#define X86_CR0_WP          (1UL<<16) /* Write Protect */
+#define X86_CR0_AM          (1UL<<18) /* Alignment Mask */
+#define X86_CR0_NW          (1UL<<29) /* Not Write-through */
+#define X86_CR0_CD          (1UL<<30) /* Cache Disable */
+#define X86_CR0_PG          (1UL<<31) /* Paging */
+
+#define PFERR_PRESENT_BIT 0
+#define PFERR_WRITE_BIT 1
+#define PFERR_USER_BIT 2
+#define PFERR_RSVD_BIT 3
+#define PFERR_FETCH_BIT 4
+#define PFERR_PK_BIT 5
+#define PFERR_SGX_BIT 15
+#define PFERR_GUEST_FINAL_BIT 32
+#define PFERR_GUEST_PAGE_BIT 33
+#define PFERR_IMPLICIT_ACCESS_BIT 48
+
+#define PFERR_PRESENT_MASK	BIT(PFERR_PRESENT_BIT)
+#define PFERR_WRITE_MASK	BIT(PFERR_WRITE_BIT)
+#define PFERR_USER_MASK		BIT(PFERR_USER_BIT)
+#define PFERR_RSVD_MASK		BIT(PFERR_RSVD_BIT)
+#define PFERR_FETCH_MASK	BIT(PFERR_FETCH_BIT)
+#define PFERR_PK_MASK		BIT(PFERR_PK_BIT)
+#define PFERR_SGX_MASK		BIT(PFERR_SGX_BIT)
+#define PFERR_GUEST_FINAL_MASK	BIT_ULL(PFERR_GUEST_FINAL_BIT)
+#define PFERR_GUEST_PAGE_MASK	BIT_ULL(PFERR_GUEST_PAGE_BIT)
+#define PFERR_IMPLICIT_ACCESS	BIT_ULL(PFERR_IMPLICIT_ACCESS_BIT)
+
+bool sys_clocksource_is_based_on_tsc(void);
+
+#endif /* SELFTEST_KVM_PROCESSOR_H */
diff --git a/tools/testing/selftests/kvm/include/x86/sev.h b/tools/testing/selftests/kvm/include/x86/sev.h
new file mode 100644
index 000000000000..008b4169f5e2
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/sev.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Helpers used for SEV guests
+ *
+ */
+#ifndef SELFTEST_KVM_SEV_H
+#define SELFTEST_KVM_SEV_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "linux/psp-sev.h"
+
+#include "kvm_util.h"
+#include "svm_util.h"
+#include "processor.h"
+
+enum sev_guest_state {
+	SEV_GUEST_STATE_UNINITIALIZED = 0,
+	SEV_GUEST_STATE_LAUNCH_UPDATE,
+	SEV_GUEST_STATE_LAUNCH_SECRET,
+	SEV_GUEST_STATE_RUNNING,
+};
+
+#define SEV_POLICY_NO_DBG	(1UL << 0)
+#define SEV_POLICY_ES		(1UL << 2)
+
+#define SNP_POLICY_SMT		(1ULL << 16)
+#define SNP_POLICY_RSVD_MBO	(1ULL << 17)
+#define SNP_POLICY_DBG		(1ULL << 19)
+
+#define GHCB_MSR_TERM_REQ	0x100
+
+static inline bool is_sev_snp_vm(struct kvm_vm *vm)
+{
+	return vm->type == KVM_X86_SNP_VM;
+}
+
+static inline bool is_sev_es_vm(struct kvm_vm *vm)
+{
+	return is_sev_snp_vm(vm) || vm->type == KVM_X86_SEV_ES_VM;
+}
+
+static inline bool is_sev_vm(struct kvm_vm *vm)
+{
+	return is_sev_es_vm(vm) || vm->type == KVM_X86_SEV_VM;
+}
+
+void sev_vm_launch(struct kvm_vm *vm, uint32_t policy);
+void sev_vm_launch_measure(struct kvm_vm *vm, uint8_t *measurement);
+void sev_vm_launch_finish(struct kvm_vm *vm);
+void snp_vm_launch_start(struct kvm_vm *vm, uint64_t policy);
+void snp_vm_launch_update(struct kvm_vm *vm);
+void snp_vm_launch_finish(struct kvm_vm *vm);
+
+struct kvm_vm *vm_sev_create_with_one_vcpu(uint32_t type, void *guest_code,
+					   struct kvm_vcpu **cpu);
+void vm_sev_launch(struct kvm_vm *vm, uint64_t policy, uint8_t *measurement);
+
+kvm_static_assert(SEV_RET_SUCCESS == 0);
+
+/*
+ * A SEV-SNP VM requires the policy reserved bit to always be set.
+ * The SMT policy bit is also required to be set based on SMT being
+ * available and active on the system.
+ */
+static inline u64 snp_default_policy(void)
+{
+	return SNP_POLICY_RSVD_MBO | (is_smt_on() ? SNP_POLICY_SMT : 0);
+}
+
+/*
+ * The KVM_MEMORY_ENCRYPT_OP uAPI is utter garbage and takes an "unsigned long"
+ * instead of a proper struct.  The size of the parameter is embedded in the
+ * ioctl number, i.e. is ABI and thus immutable.  Hack around the mess by
+ * creating an overlay to pass in an "unsigned long" without a cast (casting
+ * will make the compiler unhappy due to dereferencing an aliased pointer).
+ */
+#define __vm_sev_ioctl(vm, cmd, arg)					\
+({									\
+	int r;								\
+									\
+	union {								\
+		struct kvm_sev_cmd c;					\
+		unsigned long raw;					\
+	} sev_cmd = { .c = {						\
+		.id = (cmd),						\
+		.data = (uint64_t)(arg),				\
+		.sev_fd = (vm)->arch.sev_fd,				\
+	} };								\
+									\
+	r = __vm_ioctl(vm, KVM_MEMORY_ENCRYPT_OP, &sev_cmd.raw);	\
+	r ?: sev_cmd.c.error;						\
+})
+
+#define vm_sev_ioctl(vm, cmd, arg)					\
+({									\
+	int ret = __vm_sev_ioctl(vm, cmd, arg);				\
+									\
+	__TEST_ASSERT_VM_VCPU_IOCTL(!ret, #cmd,	ret, vm);		\
+})
+
+void sev_vm_init(struct kvm_vm *vm);
+void sev_es_vm_init(struct kvm_vm *vm);
+void snp_vm_init(struct kvm_vm *vm);
+
+static inline void vmgexit(void)
+{
+	__asm__ __volatile__("rep; vmmcall");
+}
+
+static inline void sev_register_encrypted_memory(struct kvm_vm *vm,
+						 struct userspace_mem_region *region)
+{
+	struct kvm_enc_region range = {
+		.addr = region->region.userspace_addr,
+		.size = region->region.memory_size,
+	};
+
+	vm_ioctl(vm, KVM_MEMORY_ENCRYPT_REG_REGION, &range);
+}
+
+static inline void sev_launch_update_data(struct kvm_vm *vm, vm_paddr_t gpa,
+					  uint64_t size)
+{
+	struct kvm_sev_launch_update_data update_data = {
+		.uaddr = (unsigned long)addr_gpa2hva(vm, gpa),
+		.len = size,
+	};
+
+	vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_DATA, &update_data);
+}
+
+static inline void snp_launch_update_data(struct kvm_vm *vm, vm_paddr_t gpa,
+					  uint64_t hva, uint64_t size, uint8_t type)
+{
+	struct kvm_sev_snp_launch_update update_data = {
+		.uaddr = hva,
+		.gfn_start = gpa >> PAGE_SHIFT,
+		.len = size,
+		.type = type,
+	};
+
+	vm_sev_ioctl(vm, KVM_SEV_SNP_LAUNCH_UPDATE, &update_data);
+}
+
+#endif /* SELFTEST_KVM_SEV_H */
diff --git a/tools/testing/selftests/kvm/include/x86/svm.h b/tools/testing/selftests/kvm/include/x86/svm.h
new file mode 100644
index 000000000000..29cffd0a9181
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/svm.h
@@ -0,0 +1,320 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef SELFTEST_KVM_SVM_H
+#define SELFTEST_KVM_SVM_H
+
+enum {
+	INTERCEPT_INTR,
+	INTERCEPT_NMI,
+	INTERCEPT_SMI,
+	INTERCEPT_INIT,
+	INTERCEPT_VINTR,
+	INTERCEPT_SELECTIVE_CR0,
+	INTERCEPT_STORE_IDTR,
+	INTERCEPT_STORE_GDTR,
+	INTERCEPT_STORE_LDTR,
+	INTERCEPT_STORE_TR,
+	INTERCEPT_LOAD_IDTR,
+	INTERCEPT_LOAD_GDTR,
+	INTERCEPT_LOAD_LDTR,
+	INTERCEPT_LOAD_TR,
+	INTERCEPT_RDTSC,
+	INTERCEPT_RDPMC,
+	INTERCEPT_PUSHF,
+	INTERCEPT_POPF,
+	INTERCEPT_CPUID,
+	INTERCEPT_RSM,
+	INTERCEPT_IRET,
+	INTERCEPT_INTn,
+	INTERCEPT_INVD,
+	INTERCEPT_PAUSE,
+	INTERCEPT_HLT,
+	INTERCEPT_INVLPG,
+	INTERCEPT_INVLPGA,
+	INTERCEPT_IOIO_PROT,
+	INTERCEPT_MSR_PROT,
+	INTERCEPT_TASK_SWITCH,
+	INTERCEPT_FERR_FREEZE,
+	INTERCEPT_SHUTDOWN,
+	INTERCEPT_VMRUN,
+	INTERCEPT_VMMCALL,
+	INTERCEPT_VMLOAD,
+	INTERCEPT_VMSAVE,
+	INTERCEPT_STGI,
+	INTERCEPT_CLGI,
+	INTERCEPT_SKINIT,
+	INTERCEPT_RDTSCP,
+	INTERCEPT_ICEBP,
+	INTERCEPT_WBINVD,
+	INTERCEPT_MONITOR,
+	INTERCEPT_MWAIT,
+	INTERCEPT_MWAIT_COND,
+	INTERCEPT_XSETBV,
+	INTERCEPT_RDPRU,
+};
+
+struct hv_vmcb_enlightenments {
+	struct __packed hv_enlightenments_control {
+		u32 nested_flush_hypercall:1;
+		u32 msr_bitmap:1;
+		u32 enlightened_npt_tlb: 1;
+		u32 reserved:29;
+	} __packed hv_enlightenments_control;
+	u32 hv_vp_id;
+	u64 hv_vm_id;
+	u64 partition_assist_page;
+	u64 reserved;
+} __packed;
+
+/*
+ * Hyper-V uses the software reserved clean bit in VMCB
+ */
+#define HV_VMCB_NESTED_ENLIGHTENMENTS (1U << 31)
+
+/* Synthetic VM-Exit */
+#define HV_SVM_EXITCODE_ENL			0xf0000000
+#define HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH	(1)
+
+struct __attribute__ ((__packed__)) vmcb_control_area {
+	u32 intercept_cr;
+	u32 intercept_dr;
+	u32 intercept_exceptions;
+	u64 intercept;
+	u8 reserved_1[40];
+	u16 pause_filter_thresh;
+	u16 pause_filter_count;
+	u64 iopm_base_pa;
+	u64 msrpm_base_pa;
+	u64 tsc_offset;
+	u32 asid;
+	u8 tlb_ctl;
+	u8 reserved_2[3];
+	u32 int_ctl;
+	u32 int_vector;
+	u32 int_state;
+	u8 reserved_3[4];
+	u32 exit_code;
+	u32 exit_code_hi;
+	u64 exit_info_1;
+	u64 exit_info_2;
+	u32 exit_int_info;
+	u32 exit_int_info_err;
+	u64 nested_ctl;
+	u64 avic_vapic_bar;
+	u8 reserved_4[8];
+	u32 event_inj;
+	u32 event_inj_err;
+	u64 nested_cr3;
+	u64 virt_ext;
+	u32 clean;
+	u32 reserved_5;
+	u64 next_rip;
+	u8 insn_len;
+	u8 insn_bytes[15];
+	u64 avic_backing_page;	/* Offset 0xe0 */
+	u8 reserved_6[8];	/* Offset 0xe8 */
+	u64 avic_logical_id;	/* Offset 0xf0 */
+	u64 avic_physical_id;	/* Offset 0xf8 */
+	u8 reserved_7[8];
+	u64 vmsa_pa;		/* Used for an SEV-ES guest */
+	u8 reserved_8[720];
+	/*
+	 * Offset 0x3e0, 32 bytes reserved
+	 * for use by hypervisor/software.
+	 */
+	union {
+		struct hv_vmcb_enlightenments hv_enlightenments;
+		u8 reserved_sw[32];
+	};
+};
+
+
+#define TLB_CONTROL_DO_NOTHING 0
+#define TLB_CONTROL_FLUSH_ALL_ASID 1
+#define TLB_CONTROL_FLUSH_ASID 3
+#define TLB_CONTROL_FLUSH_ASID_LOCAL 7
+
+#define V_TPR_MASK 0x0f
+
+#define V_IRQ_SHIFT 8
+#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
+
+#define V_GIF_SHIFT 9
+#define V_GIF_MASK (1 << V_GIF_SHIFT)
+
+#define V_INTR_PRIO_SHIFT 16
+#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
+
+#define V_IGN_TPR_SHIFT 20
+#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
+
+#define V_INTR_MASKING_SHIFT 24
+#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
+
+#define V_GIF_ENABLE_SHIFT 25
+#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
+
+#define AVIC_ENABLE_SHIFT 31
+#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
+
+#define LBR_CTL_ENABLE_MASK BIT_ULL(0)
+#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
+
+#define SVM_INTERRUPT_SHADOW_MASK 1
+
+#define SVM_IOIO_STR_SHIFT 2
+#define SVM_IOIO_REP_SHIFT 3
+#define SVM_IOIO_SIZE_SHIFT 4
+#define SVM_IOIO_ASIZE_SHIFT 7
+
+#define SVM_IOIO_TYPE_MASK 1
+#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
+#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
+#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
+#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
+
+#define SVM_VM_CR_VALID_MASK	0x001fULL
+#define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
+#define SVM_VM_CR_SVM_DIS_MASK  0x0010ULL
+
+#define SVM_NESTED_CTL_NP_ENABLE	BIT(0)
+#define SVM_NESTED_CTL_SEV_ENABLE	BIT(1)
+
+struct __attribute__ ((__packed__)) vmcb_seg {
+	u16 selector;
+	u16 attrib;
+	u32 limit;
+	u64 base;
+};
+
+struct __attribute__ ((__packed__)) vmcb_save_area {
+	struct vmcb_seg es;
+	struct vmcb_seg cs;
+	struct vmcb_seg ss;
+	struct vmcb_seg ds;
+	struct vmcb_seg fs;
+	struct vmcb_seg gs;
+	struct vmcb_seg gdtr;
+	struct vmcb_seg ldtr;
+	struct vmcb_seg idtr;
+	struct vmcb_seg tr;
+	u8 reserved_1[43];
+	u8 cpl;
+	u8 reserved_2[4];
+	u64 efer;
+	u8 reserved_3[112];
+	u64 cr4;
+	u64 cr3;
+	u64 cr0;
+	u64 dr7;
+	u64 dr6;
+	u64 rflags;
+	u64 rip;
+	u8 reserved_4[88];
+	u64 rsp;
+	u8 reserved_5[24];
+	u64 rax;
+	u64 star;
+	u64 lstar;
+	u64 cstar;
+	u64 sfmask;
+	u64 kernel_gs_base;
+	u64 sysenter_cs;
+	u64 sysenter_esp;
+	u64 sysenter_eip;
+	u64 cr2;
+	u8 reserved_6[32];
+	u64 g_pat;
+	u64 dbgctl;
+	u64 br_from;
+	u64 br_to;
+	u64 last_excp_from;
+	u64 last_excp_to;
+};
+
+struct __attribute__ ((__packed__)) vmcb {
+	struct vmcb_control_area control;
+	struct vmcb_save_area save;
+};
+
+#define SVM_VM_CR_SVM_DISABLE 4
+
+#define SVM_SELECTOR_S_SHIFT 4
+#define SVM_SELECTOR_DPL_SHIFT 5
+#define SVM_SELECTOR_P_SHIFT 7
+#define SVM_SELECTOR_AVL_SHIFT 8
+#define SVM_SELECTOR_L_SHIFT 9
+#define SVM_SELECTOR_DB_SHIFT 10
+#define SVM_SELECTOR_G_SHIFT 11
+
+#define SVM_SELECTOR_TYPE_MASK (0xf)
+#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
+#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
+#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
+#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
+#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
+#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
+#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
+
+#define SVM_SELECTOR_WRITE_MASK (1 << 1)
+#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
+#define SVM_SELECTOR_CODE_MASK (1 << 3)
+
+#define INTERCEPT_CR0_READ	0
+#define INTERCEPT_CR3_READ	3
+#define INTERCEPT_CR4_READ	4
+#define INTERCEPT_CR8_READ	8
+#define INTERCEPT_CR0_WRITE	(16 + 0)
+#define INTERCEPT_CR3_WRITE	(16 + 3)
+#define INTERCEPT_CR4_WRITE	(16 + 4)
+#define INTERCEPT_CR8_WRITE	(16 + 8)
+
+#define INTERCEPT_DR0_READ	0
+#define INTERCEPT_DR1_READ	1
+#define INTERCEPT_DR2_READ	2
+#define INTERCEPT_DR3_READ	3
+#define INTERCEPT_DR4_READ	4
+#define INTERCEPT_DR5_READ	5
+#define INTERCEPT_DR6_READ	6
+#define INTERCEPT_DR7_READ	7
+#define INTERCEPT_DR0_WRITE	(16 + 0)
+#define INTERCEPT_DR1_WRITE	(16 + 1)
+#define INTERCEPT_DR2_WRITE	(16 + 2)
+#define INTERCEPT_DR3_WRITE	(16 + 3)
+#define INTERCEPT_DR4_WRITE	(16 + 4)
+#define INTERCEPT_DR5_WRITE	(16 + 5)
+#define INTERCEPT_DR6_WRITE	(16 + 6)
+#define INTERCEPT_DR7_WRITE	(16 + 7)
+
+#define SVM_EVTINJ_VEC_MASK 0xff
+
+#define SVM_EVTINJ_TYPE_SHIFT 8
+#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
+
+#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
+#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
+
+#define SVM_EVTINJ_VALID (1 << 31)
+#define SVM_EVTINJ_VALID_ERR (1 << 11)
+
+#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
+#define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
+
+#define	SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
+#define	SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
+#define	SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
+#define	SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
+
+#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
+#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
+
+#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
+#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
+#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
+
+#define SVM_EXITINFO_REG_MASK 0x0F
+
+#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
+
+#endif /* SELFTEST_KVM_SVM_H */
diff --git a/tools/testing/selftests/kvm/include/x86/svm_util.h b/tools/testing/selftests/kvm/include/x86/svm_util.h
new file mode 100644
index 000000000000..b74c6dcddcbd
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/svm_util.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+
+#ifndef SELFTEST_KVM_SVM_UTILS_H
+#define SELFTEST_KVM_SVM_UTILS_H
+
+#include <asm/svm.h>
+
+#include <stdint.h>
+#include "svm.h"
+#include "processor.h"
+
+struct svm_test_data {
+	/* VMCB */
+	struct vmcb *vmcb; /* gva */
+	void *vmcb_hva;
+	uint64_t vmcb_gpa;
+
+	/* host state-save area */
+	struct vmcb_save_area *save_area; /* gva */
+	void *save_area_hva;
+	uint64_t save_area_gpa;
+
+	/* MSR-Bitmap */
+	void *msr; /* gva */
+	void *msr_hva;
+	uint64_t msr_gpa;
+};
+
+static inline void vmmcall(void)
+{
+	/*
+	 * Stuff RAX and RCX with "safe" values to make sure L0 doesn't handle
+	 * it as a valid hypercall (e.g. Hyper-V L2 TLB flush) as the intended
+	 * use of this function is to exit to L1 from L2.  Clobber all other
+	 * GPRs as L1 doesn't correctly preserve them during vmexits.
+	 */
+	__asm__ __volatile__("push %%rbp; vmmcall; pop %%rbp"
+			     : : "a"(0xdeadbeef), "c"(0xbeefdead)
+			     : "rbx", "rdx", "rsi", "rdi", "r8", "r9",
+			       "r10", "r11", "r12", "r13", "r14", "r15");
+}
+
+#define stgi()			\
+	__asm__ __volatile__(	\
+		"stgi\n"	\
+		)
+
+#define clgi()			\
+	__asm__ __volatile__(	\
+		"clgi\n"	\
+		)
+
+struct svm_test_data *vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva);
+void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_rsp);
+void run_guest(struct vmcb *vmcb, uint64_t vmcb_gpa);
+
+int open_sev_dev_path_or_exit(void);
+
+#endif /* SELFTEST_KVM_SVM_UTILS_H */
diff --git a/tools/testing/selftests/kvm/include/x86/ucall.h b/tools/testing/selftests/kvm/include/x86/ucall.h
new file mode 100644
index 000000000000..d3825dcc3cd9
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/ucall.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_UCALL_H
+#define SELFTEST_KVM_UCALL_H
+
+#include "kvm_util.h"
+
+#define UCALL_EXIT_REASON       KVM_EXIT_IO
+
+static inline void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+}
+
+#endif
diff --git a/tools/testing/selftests/kvm/include/x86/vmx.h b/tools/testing/selftests/kvm/include/x86/vmx.h
new file mode 100644
index 000000000000..96e2b4c630a9
--- /dev/null
+++ b/tools/testing/selftests/kvm/include/x86/vmx.h
@@ -0,0 +1,574 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#ifndef SELFTEST_KVM_VMX_H
+#define SELFTEST_KVM_VMX_H
+
+#include <asm/vmx.h>
+
+#include <stdint.h>
+#include "processor.h"
+#include "apic.h"
+
+/*
+ * Definitions of Primary Processor-Based VM-Execution Controls.
+ */
+#define CPU_BASED_INTR_WINDOW_EXITING		0x00000004
+#define CPU_BASED_USE_TSC_OFFSETTING		0x00000008
+#define CPU_BASED_HLT_EXITING			0x00000080
+#define CPU_BASED_INVLPG_EXITING		0x00000200
+#define CPU_BASED_MWAIT_EXITING			0x00000400
+#define CPU_BASED_RDPMC_EXITING			0x00000800
+#define CPU_BASED_RDTSC_EXITING			0x00001000
+#define CPU_BASED_CR3_LOAD_EXITING		0x00008000
+#define CPU_BASED_CR3_STORE_EXITING		0x00010000
+#define CPU_BASED_CR8_LOAD_EXITING		0x00080000
+#define CPU_BASED_CR8_STORE_EXITING		0x00100000
+#define CPU_BASED_TPR_SHADOW			0x00200000
+#define CPU_BASED_NMI_WINDOW_EXITING		0x00400000
+#define CPU_BASED_MOV_DR_EXITING		0x00800000
+#define CPU_BASED_UNCOND_IO_EXITING		0x01000000
+#define CPU_BASED_USE_IO_BITMAPS		0x02000000
+#define CPU_BASED_MONITOR_TRAP			0x08000000
+#define CPU_BASED_USE_MSR_BITMAPS		0x10000000
+#define CPU_BASED_MONITOR_EXITING		0x20000000
+#define CPU_BASED_PAUSE_EXITING			0x40000000
+#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS	0x80000000
+
+#define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR	0x0401e172
+
+/*
+ * Definitions of Secondary Processor-Based VM-Execution Controls.
+ */
+#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
+#define SECONDARY_EXEC_ENABLE_EPT		0x00000002
+#define SECONDARY_EXEC_DESC			0x00000004
+#define SECONDARY_EXEC_ENABLE_RDTSCP		0x00000008
+#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE	0x00000010
+#define SECONDARY_EXEC_ENABLE_VPID		0x00000020
+#define SECONDARY_EXEC_WBINVD_EXITING		0x00000040
+#define SECONDARY_EXEC_UNRESTRICTED_GUEST	0x00000080
+#define SECONDARY_EXEC_APIC_REGISTER_VIRT	0x00000100
+#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY	0x00000200
+#define SECONDARY_EXEC_PAUSE_LOOP_EXITING	0x00000400
+#define SECONDARY_EXEC_RDRAND_EXITING		0x00000800
+#define SECONDARY_EXEC_ENABLE_INVPCID		0x00001000
+#define SECONDARY_EXEC_ENABLE_VMFUNC		0x00002000
+#define SECONDARY_EXEC_SHADOW_VMCS		0x00004000
+#define SECONDARY_EXEC_RDSEED_EXITING		0x00010000
+#define SECONDARY_EXEC_ENABLE_PML		0x00020000
+#define SECONDARY_EPT_VE			0x00040000
+#define SECONDARY_ENABLE_XSAV_RESTORE		0x00100000
+#define SECONDARY_EXEC_TSC_SCALING		0x02000000
+
+#define PIN_BASED_EXT_INTR_MASK			0x00000001
+#define PIN_BASED_NMI_EXITING			0x00000008
+#define PIN_BASED_VIRTUAL_NMIS			0x00000020
+#define PIN_BASED_VMX_PREEMPTION_TIMER		0x00000040
+#define PIN_BASED_POSTED_INTR			0x00000080
+
+#define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR	0x00000016
+
+#define VM_EXIT_SAVE_DEBUG_CONTROLS		0x00000004
+#define VM_EXIT_HOST_ADDR_SPACE_SIZE		0x00000200
+#define VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL	0x00001000
+#define VM_EXIT_ACK_INTR_ON_EXIT		0x00008000
+#define VM_EXIT_SAVE_IA32_PAT			0x00040000
+#define VM_EXIT_LOAD_IA32_PAT			0x00080000
+#define VM_EXIT_SAVE_IA32_EFER			0x00100000
+#define VM_EXIT_LOAD_IA32_EFER			0x00200000
+#define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER	0x00400000
+
+#define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR	0x00036dff
+
+#define VM_ENTRY_LOAD_DEBUG_CONTROLS		0x00000004
+#define VM_ENTRY_IA32E_MODE			0x00000200
+#define VM_ENTRY_SMM				0x00000400
+#define VM_ENTRY_DEACT_DUAL_MONITOR		0x00000800
+#define VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL	0x00002000
+#define VM_ENTRY_LOAD_IA32_PAT			0x00004000
+#define VM_ENTRY_LOAD_IA32_EFER			0x00008000
+
+#define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR	0x000011ff
+
+#define VMX_MISC_PREEMPTION_TIMER_RATE_MASK	0x0000001f
+#define VMX_MISC_SAVE_EFER_LMA			0x00000020
+
+#define VMX_EPT_VPID_CAP_1G_PAGES		0x00020000
+#define VMX_EPT_VPID_CAP_AD_BITS		0x00200000
+
+#define EXIT_REASON_FAILED_VMENTRY	0x80000000
+
+enum vmcs_field {
+	VIRTUAL_PROCESSOR_ID		= 0x00000000,
+	POSTED_INTR_NV			= 0x00000002,
+	GUEST_ES_SELECTOR		= 0x00000800,
+	GUEST_CS_SELECTOR		= 0x00000802,
+	GUEST_SS_SELECTOR		= 0x00000804,
+	GUEST_DS_SELECTOR		= 0x00000806,
+	GUEST_FS_SELECTOR		= 0x00000808,
+	GUEST_GS_SELECTOR		= 0x0000080a,
+	GUEST_LDTR_SELECTOR		= 0x0000080c,
+	GUEST_TR_SELECTOR		= 0x0000080e,
+	GUEST_INTR_STATUS		= 0x00000810,
+	GUEST_PML_INDEX			= 0x00000812,
+	HOST_ES_SELECTOR		= 0x00000c00,
+	HOST_CS_SELECTOR		= 0x00000c02,
+	HOST_SS_SELECTOR		= 0x00000c04,
+	HOST_DS_SELECTOR		= 0x00000c06,
+	HOST_FS_SELECTOR		= 0x00000c08,
+	HOST_GS_SELECTOR		= 0x00000c0a,
+	HOST_TR_SELECTOR		= 0x00000c0c,
+	IO_BITMAP_A			= 0x00002000,
+	IO_BITMAP_A_HIGH		= 0x00002001,
+	IO_BITMAP_B			= 0x00002002,
+	IO_BITMAP_B_HIGH		= 0x00002003,
+	MSR_BITMAP			= 0x00002004,
+	MSR_BITMAP_HIGH			= 0x00002005,
+	VM_EXIT_MSR_STORE_ADDR		= 0x00002006,
+	VM_EXIT_MSR_STORE_ADDR_HIGH	= 0x00002007,
+	VM_EXIT_MSR_LOAD_ADDR		= 0x00002008,
+	VM_EXIT_MSR_LOAD_ADDR_HIGH	= 0x00002009,
+	VM_ENTRY_MSR_LOAD_ADDR		= 0x0000200a,
+	VM_ENTRY_MSR_LOAD_ADDR_HIGH	= 0x0000200b,
+	PML_ADDRESS			= 0x0000200e,
+	PML_ADDRESS_HIGH		= 0x0000200f,
+	TSC_OFFSET			= 0x00002010,
+	TSC_OFFSET_HIGH			= 0x00002011,
+	VIRTUAL_APIC_PAGE_ADDR		= 0x00002012,
+	VIRTUAL_APIC_PAGE_ADDR_HIGH	= 0x00002013,
+	APIC_ACCESS_ADDR		= 0x00002014,
+	APIC_ACCESS_ADDR_HIGH		= 0x00002015,
+	POSTED_INTR_DESC_ADDR		= 0x00002016,
+	POSTED_INTR_DESC_ADDR_HIGH	= 0x00002017,
+	EPT_POINTER			= 0x0000201a,
+	EPT_POINTER_HIGH		= 0x0000201b,
+	EOI_EXIT_BITMAP0		= 0x0000201c,
+	EOI_EXIT_BITMAP0_HIGH		= 0x0000201d,
+	EOI_EXIT_BITMAP1		= 0x0000201e,
+	EOI_EXIT_BITMAP1_HIGH		= 0x0000201f,
+	EOI_EXIT_BITMAP2		= 0x00002020,
+	EOI_EXIT_BITMAP2_HIGH		= 0x00002021,
+	EOI_EXIT_BITMAP3		= 0x00002022,
+	EOI_EXIT_BITMAP3_HIGH		= 0x00002023,
+	VMREAD_BITMAP			= 0x00002026,
+	VMREAD_BITMAP_HIGH		= 0x00002027,
+	VMWRITE_BITMAP			= 0x00002028,
+	VMWRITE_BITMAP_HIGH		= 0x00002029,
+	XSS_EXIT_BITMAP			= 0x0000202C,
+	XSS_EXIT_BITMAP_HIGH		= 0x0000202D,
+	ENCLS_EXITING_BITMAP		= 0x0000202E,
+	ENCLS_EXITING_BITMAP_HIGH	= 0x0000202F,
+	TSC_MULTIPLIER			= 0x00002032,
+	TSC_MULTIPLIER_HIGH		= 0x00002033,
+	GUEST_PHYSICAL_ADDRESS		= 0x00002400,
+	GUEST_PHYSICAL_ADDRESS_HIGH	= 0x00002401,
+	VMCS_LINK_POINTER		= 0x00002800,
+	VMCS_LINK_POINTER_HIGH		= 0x00002801,
+	GUEST_IA32_DEBUGCTL		= 0x00002802,
+	GUEST_IA32_DEBUGCTL_HIGH	= 0x00002803,
+	GUEST_IA32_PAT			= 0x00002804,
+	GUEST_IA32_PAT_HIGH		= 0x00002805,
+	GUEST_IA32_EFER			= 0x00002806,
+	GUEST_IA32_EFER_HIGH		= 0x00002807,
+	GUEST_IA32_PERF_GLOBAL_CTRL	= 0x00002808,
+	GUEST_IA32_PERF_GLOBAL_CTRL_HIGH= 0x00002809,
+	GUEST_PDPTR0			= 0x0000280a,
+	GUEST_PDPTR0_HIGH		= 0x0000280b,
+	GUEST_PDPTR1			= 0x0000280c,
+	GUEST_PDPTR1_HIGH		= 0x0000280d,
+	GUEST_PDPTR2			= 0x0000280e,
+	GUEST_PDPTR2_HIGH		= 0x0000280f,
+	GUEST_PDPTR3			= 0x00002810,
+	GUEST_PDPTR3_HIGH		= 0x00002811,
+	GUEST_BNDCFGS			= 0x00002812,
+	GUEST_BNDCFGS_HIGH		= 0x00002813,
+	HOST_IA32_PAT			= 0x00002c00,
+	HOST_IA32_PAT_HIGH		= 0x00002c01,
+	HOST_IA32_EFER			= 0x00002c02,
+	HOST_IA32_EFER_HIGH		= 0x00002c03,
+	HOST_IA32_PERF_GLOBAL_CTRL	= 0x00002c04,
+	HOST_IA32_PERF_GLOBAL_CTRL_HIGH	= 0x00002c05,
+	PIN_BASED_VM_EXEC_CONTROL	= 0x00004000,
+	CPU_BASED_VM_EXEC_CONTROL	= 0x00004002,
+	EXCEPTION_BITMAP		= 0x00004004,
+	PAGE_FAULT_ERROR_CODE_MASK	= 0x00004006,
+	PAGE_FAULT_ERROR_CODE_MATCH	= 0x00004008,
+	CR3_TARGET_COUNT		= 0x0000400a,
+	VM_EXIT_CONTROLS		= 0x0000400c,
+	VM_EXIT_MSR_STORE_COUNT		= 0x0000400e,
+	VM_EXIT_MSR_LOAD_COUNT		= 0x00004010,
+	VM_ENTRY_CONTROLS		= 0x00004012,
+	VM_ENTRY_MSR_LOAD_COUNT		= 0x00004014,
+	VM_ENTRY_INTR_INFO_FIELD	= 0x00004016,
+	VM_ENTRY_EXCEPTION_ERROR_CODE	= 0x00004018,
+	VM_ENTRY_INSTRUCTION_LEN	= 0x0000401a,
+	TPR_THRESHOLD			= 0x0000401c,
+	SECONDARY_VM_EXEC_CONTROL	= 0x0000401e,
+	PLE_GAP				= 0x00004020,
+	PLE_WINDOW			= 0x00004022,
+	VM_INSTRUCTION_ERROR		= 0x00004400,
+	VM_EXIT_REASON			= 0x00004402,
+	VM_EXIT_INTR_INFO		= 0x00004404,
+	VM_EXIT_INTR_ERROR_CODE		= 0x00004406,
+	IDT_VECTORING_INFO_FIELD	= 0x00004408,
+	IDT_VECTORING_ERROR_CODE	= 0x0000440a,
+	VM_EXIT_INSTRUCTION_LEN		= 0x0000440c,
+	VMX_INSTRUCTION_INFO		= 0x0000440e,
+	GUEST_ES_LIMIT			= 0x00004800,
+	GUEST_CS_LIMIT			= 0x00004802,
+	GUEST_SS_LIMIT			= 0x00004804,
+	GUEST_DS_LIMIT			= 0x00004806,
+	GUEST_FS_LIMIT			= 0x00004808,
+	GUEST_GS_LIMIT			= 0x0000480a,
+	GUEST_LDTR_LIMIT		= 0x0000480c,
+	GUEST_TR_LIMIT			= 0x0000480e,
+	GUEST_GDTR_LIMIT		= 0x00004810,
+	GUEST_IDTR_LIMIT		= 0x00004812,
+	GUEST_ES_AR_BYTES		= 0x00004814,
+	GUEST_CS_AR_BYTES		= 0x00004816,
+	GUEST_SS_AR_BYTES		= 0x00004818,
+	GUEST_DS_AR_BYTES		= 0x0000481a,
+	GUEST_FS_AR_BYTES		= 0x0000481c,
+	GUEST_GS_AR_BYTES		= 0x0000481e,
+	GUEST_LDTR_AR_BYTES		= 0x00004820,
+	GUEST_TR_AR_BYTES		= 0x00004822,
+	GUEST_INTERRUPTIBILITY_INFO	= 0x00004824,
+	GUEST_ACTIVITY_STATE		= 0X00004826,
+	GUEST_SYSENTER_CS		= 0x0000482A,
+	VMX_PREEMPTION_TIMER_VALUE	= 0x0000482E,
+	HOST_IA32_SYSENTER_CS		= 0x00004c00,
+	CR0_GUEST_HOST_MASK		= 0x00006000,
+	CR4_GUEST_HOST_MASK		= 0x00006002,
+	CR0_READ_SHADOW			= 0x00006004,
+	CR4_READ_SHADOW			= 0x00006006,
+	CR3_TARGET_VALUE0		= 0x00006008,
+	CR3_TARGET_VALUE1		= 0x0000600a,
+	CR3_TARGET_VALUE2		= 0x0000600c,
+	CR3_TARGET_VALUE3		= 0x0000600e,
+	EXIT_QUALIFICATION		= 0x00006400,
+	GUEST_LINEAR_ADDRESS		= 0x0000640a,
+	GUEST_CR0			= 0x00006800,
+	GUEST_CR3			= 0x00006802,
+	GUEST_CR4			= 0x00006804,
+	GUEST_ES_BASE			= 0x00006806,
+	GUEST_CS_BASE			= 0x00006808,
+	GUEST_SS_BASE			= 0x0000680a,
+	GUEST_DS_BASE			= 0x0000680c,
+	GUEST_FS_BASE			= 0x0000680e,
+	GUEST_GS_BASE			= 0x00006810,
+	GUEST_LDTR_BASE			= 0x00006812,
+	GUEST_TR_BASE			= 0x00006814,
+	GUEST_GDTR_BASE			= 0x00006816,
+	GUEST_IDTR_BASE			= 0x00006818,
+	GUEST_DR7			= 0x0000681a,
+	GUEST_RSP			= 0x0000681c,
+	GUEST_RIP			= 0x0000681e,
+	GUEST_RFLAGS			= 0x00006820,
+	GUEST_PENDING_DBG_EXCEPTIONS	= 0x00006822,
+	GUEST_SYSENTER_ESP		= 0x00006824,
+	GUEST_SYSENTER_EIP		= 0x00006826,
+	HOST_CR0			= 0x00006c00,
+	HOST_CR3			= 0x00006c02,
+	HOST_CR4			= 0x00006c04,
+	HOST_FS_BASE			= 0x00006c06,
+	HOST_GS_BASE			= 0x00006c08,
+	HOST_TR_BASE			= 0x00006c0a,
+	HOST_GDTR_BASE			= 0x00006c0c,
+	HOST_IDTR_BASE			= 0x00006c0e,
+	HOST_IA32_SYSENTER_ESP		= 0x00006c10,
+	HOST_IA32_SYSENTER_EIP		= 0x00006c12,
+	HOST_RSP			= 0x00006c14,
+	HOST_RIP			= 0x00006c16,
+};
+
+struct vmx_msr_entry {
+	uint32_t index;
+	uint32_t reserved;
+	uint64_t value;
+} __attribute__ ((aligned(16)));
+
+#include "evmcs.h"
+
+static inline int vmxon(uint64_t phys)
+{
+	uint8_t ret;
+
+	__asm__ __volatile__ ("vmxon %[pa]; setna %[ret]"
+		: [ret]"=rm"(ret)
+		: [pa]"m"(phys)
+		: "cc", "memory");
+
+	return ret;
+}
+
+static inline void vmxoff(void)
+{
+	__asm__ __volatile__("vmxoff");
+}
+
+static inline int vmclear(uint64_t vmcs_pa)
+{
+	uint8_t ret;
+
+	__asm__ __volatile__ ("vmclear %[pa]; setna %[ret]"
+		: [ret]"=rm"(ret)
+		: [pa]"m"(vmcs_pa)
+		: "cc", "memory");
+
+	return ret;
+}
+
+static inline int vmptrld(uint64_t vmcs_pa)
+{
+	uint8_t ret;
+
+	if (enable_evmcs)
+		return -1;
+
+	__asm__ __volatile__ ("vmptrld %[pa]; setna %[ret]"
+		: [ret]"=rm"(ret)
+		: [pa]"m"(vmcs_pa)
+		: "cc", "memory");
+
+	return ret;
+}
+
+static inline int vmptrst(uint64_t *value)
+{
+	uint64_t tmp;
+	uint8_t ret;
+
+	if (enable_evmcs)
+		return evmcs_vmptrst(value);
+
+	__asm__ __volatile__("vmptrst %[value]; setna %[ret]"
+		: [value]"=m"(tmp), [ret]"=rm"(ret)
+		: : "cc", "memory");
+
+	*value = tmp;
+	return ret;
+}
+
+/*
+ * A wrapper around vmptrst that ignores errors and returns zero if the
+ * vmptrst instruction fails.
+ */
+static inline uint64_t vmptrstz(void)
+{
+	uint64_t value = 0;
+	vmptrst(&value);
+	return value;
+}
+
+/*
+ * No guest state (e.g. GPRs) is established by this vmlaunch.
+ */
+static inline int vmlaunch(void)
+{
+	int ret;
+
+	if (enable_evmcs)
+		return evmcs_vmlaunch();
+
+	__asm__ __volatile__("push %%rbp;"
+			     "push %%rcx;"
+			     "push %%rdx;"
+			     "push %%rsi;"
+			     "push %%rdi;"
+			     "push $0;"
+			     "vmwrite %%rsp, %[host_rsp];"
+			     "lea 1f(%%rip), %%rax;"
+			     "vmwrite %%rax, %[host_rip];"
+			     "vmlaunch;"
+			     "incq (%%rsp);"
+			     "1: pop %%rax;"
+			     "pop %%rdi;"
+			     "pop %%rsi;"
+			     "pop %%rdx;"
+			     "pop %%rcx;"
+			     "pop %%rbp;"
+			     : [ret]"=&a"(ret)
+			     : [host_rsp]"r"((uint64_t)HOST_RSP),
+			       [host_rip]"r"((uint64_t)HOST_RIP)
+			     : "memory", "cc", "rbx", "r8", "r9", "r10",
+			       "r11", "r12", "r13", "r14", "r15");
+	return ret;
+}
+
+/*
+ * No guest state (e.g. GPRs) is established by this vmresume.
+ */
+static inline int vmresume(void)
+{
+	int ret;
+
+	if (enable_evmcs)
+		return evmcs_vmresume();
+
+	__asm__ __volatile__("push %%rbp;"
+			     "push %%rcx;"
+			     "push %%rdx;"
+			     "push %%rsi;"
+			     "push %%rdi;"
+			     "push $0;"
+			     "vmwrite %%rsp, %[host_rsp];"
+			     "lea 1f(%%rip), %%rax;"
+			     "vmwrite %%rax, %[host_rip];"
+			     "vmresume;"
+			     "incq (%%rsp);"
+			     "1: pop %%rax;"
+			     "pop %%rdi;"
+			     "pop %%rsi;"
+			     "pop %%rdx;"
+			     "pop %%rcx;"
+			     "pop %%rbp;"
+			     : [ret]"=&a"(ret)
+			     : [host_rsp]"r"((uint64_t)HOST_RSP),
+			       [host_rip]"r"((uint64_t)HOST_RIP)
+			     : "memory", "cc", "rbx", "r8", "r9", "r10",
+			       "r11", "r12", "r13", "r14", "r15");
+	return ret;
+}
+
+static inline void vmcall(void)
+{
+	/*
+	 * Stuff RAX and RCX with "safe" values to make sure L0 doesn't handle
+	 * it as a valid hypercall (e.g. Hyper-V L2 TLB flush) as the intended
+	 * use of this function is to exit to L1 from L2.  Clobber all other
+	 * GPRs as L1 doesn't correctly preserve them during vmexits.
+	 */
+	__asm__ __volatile__("push %%rbp; vmcall; pop %%rbp"
+			     : : "a"(0xdeadbeef), "c"(0xbeefdead)
+			     : "rbx", "rdx", "rsi", "rdi", "r8", "r9",
+			       "r10", "r11", "r12", "r13", "r14", "r15");
+}
+
+static inline int vmread(uint64_t encoding, uint64_t *value)
+{
+	uint64_t tmp;
+	uint8_t ret;
+
+	if (enable_evmcs)
+		return evmcs_vmread(encoding, value);
+
+	__asm__ __volatile__("vmread %[encoding], %[value]; setna %[ret]"
+		: [value]"=rm"(tmp), [ret]"=rm"(ret)
+		: [encoding]"r"(encoding)
+		: "cc", "memory");
+
+	*value = tmp;
+	return ret;
+}
+
+/*
+ * A wrapper around vmread that ignores errors and returns zero if the
+ * vmread instruction fails.
+ */
+static inline uint64_t vmreadz(uint64_t encoding)
+{
+	uint64_t value = 0;
+	vmread(encoding, &value);
+	return value;
+}
+
+static inline int vmwrite(uint64_t encoding, uint64_t value)
+{
+	uint8_t ret;
+
+	if (enable_evmcs)
+		return evmcs_vmwrite(encoding, value);
+
+	__asm__ __volatile__ ("vmwrite %[value], %[encoding]; setna %[ret]"
+		: [ret]"=rm"(ret)
+		: [value]"rm"(value), [encoding]"r"(encoding)
+		: "cc", "memory");
+
+	return ret;
+}
+
+static inline uint32_t vmcs_revision(void)
+{
+	return rdmsr(MSR_IA32_VMX_BASIC);
+}
+
+struct vmx_pages {
+	void *vmxon_hva;
+	uint64_t vmxon_gpa;
+	void *vmxon;
+
+	void *vmcs_hva;
+	uint64_t vmcs_gpa;
+	void *vmcs;
+
+	void *msr_hva;
+	uint64_t msr_gpa;
+	void *msr;
+
+	void *shadow_vmcs_hva;
+	uint64_t shadow_vmcs_gpa;
+	void *shadow_vmcs;
+
+	void *vmread_hva;
+	uint64_t vmread_gpa;
+	void *vmread;
+
+	void *vmwrite_hva;
+	uint64_t vmwrite_gpa;
+	void *vmwrite;
+
+	void *eptp_hva;
+	uint64_t eptp_gpa;
+	void *eptp;
+
+	void *apic_access_hva;
+	uint64_t apic_access_gpa;
+	void *apic_access;
+};
+
+union vmx_basic {
+	u64 val;
+	struct {
+		u32 revision;
+		u32	size:13,
+			reserved1:3,
+			width:1,
+			dual:1,
+			type:4,
+			insouts:1,
+			ctrl:1,
+			vm_entry_exception_ctrl:1,
+			reserved2:7;
+	};
+};
+
+union vmx_ctrl_msr {
+	u64 val;
+	struct {
+		u32 set, clr;
+	};
+};
+
+struct vmx_pages *vcpu_alloc_vmx(struct kvm_vm *vm, vm_vaddr_t *p_vmx_gva);
+bool prepare_for_vmx_operation(struct vmx_pages *vmx);
+void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp);
+bool load_vmcs(struct vmx_pages *vmx);
+
+bool ept_1g_pages_supported(void);
+
+void nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		   uint64_t nested_paddr, uint64_t paddr);
+void nested_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		 uint64_t nested_paddr, uint64_t paddr, uint64_t size);
+void nested_map_memslot(struct vmx_pages *vmx, struct kvm_vm *vm,
+			uint32_t memslot);
+void nested_identity_map_1g(struct vmx_pages *vmx, struct kvm_vm *vm,
+			    uint64_t addr, uint64_t size);
+bool kvm_cpu_has_ept(void);
+void prepare_eptp(struct vmx_pages *vmx, struct kvm_vm *vm);
+void prepare_virtualize_apic_accesses(struct vmx_pages *vmx, struct kvm_vm *vm);
+
+#endif /* SELFTEST_KVM_VMX_H */
diff --git a/tools/testing/selftests/kvm/irqfd_test.c b/tools/testing/selftests/kvm/irqfd_test.c
new file mode 100644
index 000000000000..5d7590d01868
--- /dev/null
+++ b/tools/testing/selftests/kvm/irqfd_test.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <stdint.h>
+#include <sys/sysinfo.h>
+
+#include "kvm_util.h"
+
+static struct kvm_vm *vm1;
+static struct kvm_vm *vm2;
+static int __eventfd;
+static bool done;
+
+/*
+ * KVM de-assigns based on eventfd *and* GSI, but requires unique eventfds when
+ * assigning (the API isn't symmetrical).  Abuse the oddity and use a per-task
+ * GSI base to avoid false failures due to cross-task de-assign, i.e. so that
+ * the secondary doesn't de-assign the primary's eventfd and cause assign to
+ * unexpectedly succeed on the primary.
+ */
+#define GSI_BASE_PRIMARY	0x20
+#define GSI_BASE_SECONDARY	0x30
+
+static void juggle_eventfd_secondary(struct kvm_vm *vm, int eventfd)
+{
+	int r, i;
+
+	/*
+	 * The secondary task can encounter EBADF since the primary can close
+	 * the eventfd at any time.  And because the primary can recreate the
+	 * eventfd, at the safe fd in the file table, the secondary can also
+	 * encounter "unexpected" success, e.g. if the close+recreate happens
+	 * between the first and second assignments.  The secondary's role is
+	 * mostly to antagonize KVM, not to detect bugs.
+	 */
+	for (i = 0; i < 2; i++) {
+		r = __kvm_irqfd(vm, GSI_BASE_SECONDARY, eventfd, 0);
+		TEST_ASSERT(!r || errno == EBUSY || errno == EBADF,
+			    "Wanted success, EBUSY, or EBADF, r = %d, errno = %d",
+			    r, errno);
+
+		/* De-assign should succeed unless the eventfd was closed. */
+		r = __kvm_irqfd(vm, GSI_BASE_SECONDARY + i, eventfd, KVM_IRQFD_FLAG_DEASSIGN);
+		TEST_ASSERT(!r || errno == EBADF,
+			    "De-assign should succeed unless the fd was closed");
+	}
+}
+
+static void *secondary_irqfd_juggler(void *ign)
+{
+	while (!READ_ONCE(done)) {
+		juggle_eventfd_secondary(vm1, READ_ONCE(__eventfd));
+		juggle_eventfd_secondary(vm2, READ_ONCE(__eventfd));
+	}
+
+	return NULL;
+}
+
+static void juggle_eventfd_primary(struct kvm_vm *vm, int eventfd)
+{
+	int r1, r2;
+
+	/*
+	 * At least one of the assigns should fail.  KVM disallows assigning a
+	 * single eventfd to multiple GSIs (or VMs), so it's possible that both
+	 * assignments can fail, too.
+	 */
+	r1 = __kvm_irqfd(vm, GSI_BASE_PRIMARY, eventfd, 0);
+	TEST_ASSERT(!r1 || errno == EBUSY,
+		    "Wanted success or EBUSY, r = %d, errno = %d", r1, errno);
+
+	r2 = __kvm_irqfd(vm, GSI_BASE_PRIMARY + 1, eventfd, 0);
+	TEST_ASSERT(r1 || (r2 && errno == EBUSY),
+		    "Wanted failure (EBUSY), r1 = %d, r2 = %d, errno = %d",
+		    r1, r2, errno);
+
+	/*
+	 * De-assign should always succeed, even if the corresponding assign
+	 * failed.
+	 */
+	kvm_irqfd(vm, GSI_BASE_PRIMARY, eventfd, KVM_IRQFD_FLAG_DEASSIGN);
+	kvm_irqfd(vm, GSI_BASE_PRIMARY + 1, eventfd, KVM_IRQFD_FLAG_DEASSIGN);
+}
+
+int main(int argc, char *argv[])
+{
+	pthread_t racing_thread;
+	struct kvm_vcpu *unused;
+	int r, i;
+
+	TEST_REQUIRE(kvm_arch_has_default_irqchip());
+
+	/*
+	 * Create "full" VMs, as KVM_IRQFD requires an in-kernel IRQ chip. Also
+	 * create an unused vCPU as certain architectures (like arm64) need to
+	 * complete IRQ chip initialization after all possible vCPUs for a VM
+	 * have been created.
+	 */
+	vm1 = vm_create_with_one_vcpu(&unused, NULL);
+	vm2 = vm_create_with_one_vcpu(&unused, NULL);
+
+	WRITE_ONCE(__eventfd, kvm_new_eventfd());
+
+	kvm_irqfd(vm1, 10, __eventfd, 0);
+
+	r = __kvm_irqfd(vm1, 11, __eventfd, 0);
+	TEST_ASSERT(r && errno == EBUSY,
+		    "Wanted EBUSY, r = %d, errno = %d", r, errno);
+
+	r = __kvm_irqfd(vm2, 12, __eventfd, 0);
+	TEST_ASSERT(r && errno == EBUSY,
+		    "Wanted EBUSY, r = %d, errno = %d", r, errno);
+
+	/*
+	 * De-assign all eventfds, along with multiple eventfds that were never
+	 * assigned.  KVM's ABI is that de-assign is allowed so long as the
+	 * eventfd itself is valid.
+	 */
+	kvm_irqfd(vm1, 11, READ_ONCE(__eventfd), KVM_IRQFD_FLAG_DEASSIGN);
+	kvm_irqfd(vm1, 12, READ_ONCE(__eventfd), KVM_IRQFD_FLAG_DEASSIGN);
+	kvm_irqfd(vm1, 13, READ_ONCE(__eventfd), KVM_IRQFD_FLAG_DEASSIGN);
+	kvm_irqfd(vm1, 14, READ_ONCE(__eventfd), KVM_IRQFD_FLAG_DEASSIGN);
+	kvm_irqfd(vm1, 10, READ_ONCE(__eventfd), KVM_IRQFD_FLAG_DEASSIGN);
+
+	close(__eventfd);
+
+	pthread_create(&racing_thread, NULL, secondary_irqfd_juggler, vm2);
+
+	for (i = 0; i < 10000; i++) {
+		WRITE_ONCE(__eventfd, kvm_new_eventfd());
+
+		juggle_eventfd_primary(vm1, __eventfd);
+		juggle_eventfd_primary(vm2, __eventfd);
+		close(__eventfd);
+	}
+
+	WRITE_ONCE(done, true);
+	pthread_join(racing_thread, NULL);
+}
diff --git a/tools/testing/selftests/kvm/kvm_binary_stats_test.c b/tools/testing/selftests/kvm/kvm_binary_stats_test.c
new file mode 100644
index 000000000000..b7dbde9c0843
--- /dev/null
+++ b/tools/testing/selftests/kvm/kvm_binary_stats_test.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * kvm_binary_stats_test
+ *
+ * Copyright (C) 2021, Google LLC.
+ *
+ * Test the fd-based interface for KVM statistics.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "asm/kvm.h"
+#include "linux/kvm.h"
+#include "kselftest.h"
+
+static void stats_test(int stats_fd)
+{
+	ssize_t ret;
+	int i;
+	size_t size_desc;
+	size_t size_data = 0;
+	struct kvm_stats_header header;
+	char *id;
+	struct kvm_stats_desc *stats_desc;
+	u64 *stats_data;
+	struct kvm_stats_desc *pdesc;
+	u32 type, unit, base;
+
+	/* Read kvm stats header */
+	read_stats_header(stats_fd, &header);
+
+	size_desc = get_stats_descriptor_size(&header);
+
+	/* Read kvm stats id string */
+	id = malloc(header.name_size);
+	TEST_ASSERT(id, "Allocate memory for id string");
+
+	ret = pread(stats_fd, id, header.name_size, sizeof(header));
+	TEST_ASSERT(ret == header.name_size,
+		    "Expected header size '%u', read '%lu' bytes",
+		    header.name_size, ret);
+
+	/* Check id string, that should start with "kvm" */
+	TEST_ASSERT(!strncmp(id, "kvm", 3) && strlen(id) < header.name_size,
+		    "Invalid KVM stats type, id: %s", id);
+
+	/* Sanity check for other fields in header */
+	if (header.num_desc == 0) {
+		ksft_print_msg("No KVM stats defined!\n");
+		return;
+	}
+	/*
+	 * The descriptor and data offsets must be valid, they must not overlap
+	 * the header, and the descriptor and data blocks must not overlap each
+	 * other.  Note, the data block is rechecked after its size is known.
+	 */
+	TEST_ASSERT(header.desc_offset && header.desc_offset >= sizeof(header) &&
+		    header.data_offset && header.data_offset >= sizeof(header),
+		    "Invalid offset fields in header");
+
+	TEST_ASSERT(header.desc_offset > header.data_offset ||
+		    (header.desc_offset + size_desc * header.num_desc <= header.data_offset),
+		    "Descriptor block is overlapped with data block");
+
+	/* Read kvm stats descriptors */
+	stats_desc = read_stats_descriptors(stats_fd, &header);
+
+	/* Sanity check for fields in descriptors */
+	for (i = 0; i < header.num_desc; ++i) {
+		pdesc = get_stats_descriptor(stats_desc, i, &header);
+		type = pdesc->flags & KVM_STATS_TYPE_MASK;
+		unit = pdesc->flags & KVM_STATS_UNIT_MASK;
+		base = pdesc->flags & KVM_STATS_BASE_MASK;
+
+		/* Check name string */
+		TEST_ASSERT(strlen(pdesc->name) < header.name_size,
+			    "KVM stats name (index: %d) too long", i);
+
+		/* Check type,unit,base boundaries */
+		TEST_ASSERT(type <= KVM_STATS_TYPE_MAX,
+			    "Unknown KVM stats (%s) type: %u", pdesc->name, type);
+		TEST_ASSERT(unit <= KVM_STATS_UNIT_MAX,
+			    "Unknown KVM stats (%s) unit: %u", pdesc->name, unit);
+		TEST_ASSERT(base <= KVM_STATS_BASE_MAX,
+			    "Unknown KVM stats (%s) base: %u", pdesc->name, base);
+
+		/*
+		 * Check exponent for stats unit
+		 * Exponent for counter should be greater than or equal to 0
+		 * Exponent for unit bytes should be greater than or equal to 0
+		 * Exponent for unit seconds should be less than or equal to 0
+		 * Exponent for unit clock cycles should be greater than or
+		 * equal to 0
+		 * Exponent for unit boolean should be 0
+		 */
+		switch (pdesc->flags & KVM_STATS_UNIT_MASK) {
+		case KVM_STATS_UNIT_NONE:
+		case KVM_STATS_UNIT_BYTES:
+		case KVM_STATS_UNIT_CYCLES:
+			TEST_ASSERT(pdesc->exponent >= 0,
+				    "Unsupported KVM stats (%s) exponent: %i",
+				    pdesc->name, pdesc->exponent);
+			break;
+		case KVM_STATS_UNIT_SECONDS:
+			TEST_ASSERT(pdesc->exponent <= 0,
+				    "Unsupported KVM stats (%s) exponent: %i",
+				    pdesc->name, pdesc->exponent);
+			break;
+		case KVM_STATS_UNIT_BOOLEAN:
+			TEST_ASSERT(pdesc->exponent == 0,
+				    "Unsupported KVM stats (%s) exponent: %d",
+				    pdesc->name, pdesc->exponent);
+			break;
+		}
+
+		/* Check size field, which should not be zero */
+		TEST_ASSERT(pdesc->size,
+			    "KVM descriptor(%s) with size of 0", pdesc->name);
+		/* Check bucket_size field */
+		switch (pdesc->flags & KVM_STATS_TYPE_MASK) {
+		case KVM_STATS_TYPE_LINEAR_HIST:
+			TEST_ASSERT(pdesc->bucket_size,
+				    "Bucket size of Linear Histogram stats (%s) is zero",
+				    pdesc->name);
+			break;
+		default:
+			TEST_ASSERT(!pdesc->bucket_size,
+				    "Bucket size of stats (%s) is not zero",
+				    pdesc->name);
+		}
+		size_data = max(size_data, pdesc->offset + pdesc->size * sizeof(*stats_data));
+	}
+
+	/*
+	 * Now that the size of the data block is known, verify the data block
+	 * doesn't overlap the descriptor block.
+	 */
+	TEST_ASSERT(header.data_offset >= header.desc_offset ||
+		    header.data_offset + size_data <= header.desc_offset,
+		    "Data block is overlapped with Descriptor block");
+
+	/* Check validity of all stats data size */
+	TEST_ASSERT(size_data >= header.num_desc * sizeof(*stats_data),
+		    "Data size is not correct");
+
+	/* Allocate memory for stats data */
+	stats_data = malloc(size_data);
+	TEST_ASSERT(stats_data, "Allocate memory for stats data");
+	/* Read kvm stats data as a bulk */
+	ret = pread(stats_fd, stats_data, size_data, header.data_offset);
+	TEST_ASSERT(ret == size_data, "Read KVM stats data");
+	/* Read kvm stats data one by one */
+	for (i = 0; i < header.num_desc; ++i) {
+		pdesc = get_stats_descriptor(stats_desc, i, &header);
+		read_stat_data(stats_fd, &header, pdesc, stats_data,
+			       pdesc->size);
+	}
+
+	free(stats_data);
+	free(stats_desc);
+	free(id);
+
+	close(stats_fd);
+	TEST_ASSERT(fcntl(stats_fd, F_GETFD) == -1, "Stats fd not freed");
+}
+
+#define DEFAULT_NUM_VM		4
+#define DEFAULT_NUM_VCPU	4
+
+/*
+ * Usage: kvm_bin_form_stats [#vm] [#vcpu]
+ * The first parameter #vm set the number of VMs being created.
+ * The second parameter #vcpu set the number of VCPUs being created.
+ * By default, DEFAULT_NUM_VM VM and DEFAULT_NUM_VCPU VCPU for the VM would be
+ * created for testing.
+ */
+
+int main(int argc, char *argv[])
+{
+	int vm_stats_fds, *vcpu_stats_fds;
+	int i, j;
+	struct kvm_vcpu **vcpus;
+	struct kvm_vm **vms;
+	int max_vm = DEFAULT_NUM_VM;
+	int max_vcpu = DEFAULT_NUM_VCPU;
+
+	/* Get the number of VMs and VCPUs that would be created for testing. */
+	if (argc > 1) {
+		max_vm = strtol(argv[1], NULL, 0);
+		if (max_vm <= 0)
+			max_vm = DEFAULT_NUM_VM;
+	}
+	if (argc > 2) {
+		max_vcpu = strtol(argv[2], NULL, 0);
+		if (max_vcpu <= 0)
+			max_vcpu = DEFAULT_NUM_VCPU;
+	}
+
+	ksft_print_header();
+
+	/* Check the extension for binary stats */
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_BINARY_STATS_FD));
+
+	ksft_set_plan(max_vm);
+
+	/* Create VMs and VCPUs */
+	vms = malloc(sizeof(vms[0]) * max_vm);
+	TEST_ASSERT(vms, "Allocate memory for storing VM pointers");
+
+	vcpus = malloc(sizeof(struct kvm_vcpu *) * max_vm * max_vcpu);
+	TEST_ASSERT(vcpus, "Allocate memory for storing vCPU pointers");
+
+	/*
+	 * Not per-VM as the array is populated, used, and invalidated within a
+	 * single for-loop iteration.
+	 */
+	vcpu_stats_fds = calloc(max_vm, sizeof(*vcpu_stats_fds));
+	TEST_ASSERT(vcpu_stats_fds, "Allocate memory for VM stats fds");
+
+	for (i = 0; i < max_vm; ++i) {
+		vms[i] = vm_create_barebones();
+		for (j = 0; j < max_vcpu; ++j)
+			vcpus[i * max_vcpu + j] = __vm_vcpu_add(vms[i], j);
+	}
+
+	/*
+	 * Check stats read for every VM and vCPU, with a variety of flavors.
+	 * Note, stats_test() closes the passed in stats fd.
+	 */
+	for (i = 0; i < max_vm; ++i) {
+		/*
+		 * Verify that creating multiple userspace references to a
+		 * single stats file works and doesn't cause explosions.
+		 */
+		vm_stats_fds = vm_get_stats_fd(vms[i]);
+		stats_test(kvm_dup(vm_stats_fds));
+
+		/* Verify userspace can instantiate multiple stats files. */
+		stats_test(vm_get_stats_fd(vms[i]));
+
+		for (j = 0; j < max_vcpu; ++j) {
+			vcpu_stats_fds[j] = vcpu_get_stats_fd(vcpus[i * max_vcpu + j]);
+			stats_test(kvm_dup(vcpu_stats_fds[j]));
+			stats_test(vcpu_get_stats_fd(vcpus[i * max_vcpu + j]));
+		}
+
+		/*
+		 * Close the VM fd and redo the stats tests.  KVM should gift a
+		 * reference (to the VM) to each stats fd, i.e. stats should
+		 * still be accessible even after userspace has put its last
+		 * _direct_ reference to the VM.
+		 */
+		kvm_vm_free(vms[i]);
+
+		stats_test(vm_stats_fds);
+		for (j = 0; j < max_vcpu; ++j)
+			stats_test(vcpu_stats_fds[j]);
+
+		ksft_test_result_pass("vm%i\n", i);
+	}
+
+	free(vms);
+	free(vcpus);
+	free(vcpu_stats_fds);
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/kvm_create_max_vcpus.c b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c
new file mode 100644
index 000000000000..c5310736ed06
--- /dev/null
+++ b/tools/testing/selftests/kvm/kvm_create_max_vcpus.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * kvm_create_max_vcpus
+ *
+ * Copyright (C) 2019, Google LLC.
+ *
+ * Test for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_VCPU_ID.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "asm/kvm.h"
+#include "linux/kvm.h"
+
+void test_vcpu_creation(int first_vcpu_id, int num_vcpus)
+{
+	struct kvm_vm *vm;
+	int i;
+
+	pr_info("Testing creating %d vCPUs, with IDs %d...%d.\n",
+		num_vcpus, first_vcpu_id, first_vcpu_id + num_vcpus - 1);
+
+	vm = vm_create_barebones();
+
+	for (i = first_vcpu_id; i < first_vcpu_id + num_vcpus; i++)
+		/* This asserts that the vCPU was created. */
+		__vm_vcpu_add(vm, i);
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	int kvm_max_vcpu_id = kvm_check_cap(KVM_CAP_MAX_VCPU_ID);
+	int kvm_max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+
+	pr_info("KVM_CAP_MAX_VCPU_ID: %d\n", kvm_max_vcpu_id);
+	pr_info("KVM_CAP_MAX_VCPUS: %d\n", kvm_max_vcpus);
+
+	kvm_set_files_rlimit(kvm_max_vcpus);
+
+	/*
+	 * Upstream KVM prior to 4.8 does not support KVM_CAP_MAX_VCPU_ID.
+	 * Userspace is supposed to use KVM_CAP_MAX_VCPUS as the maximum ID
+	 * in this case.
+	 */
+	if (!kvm_max_vcpu_id)
+		kvm_max_vcpu_id = kvm_max_vcpus;
+
+	TEST_ASSERT(kvm_max_vcpu_id >= kvm_max_vcpus,
+		    "KVM_MAX_VCPU_IDS (%d) must be at least as large as KVM_MAX_VCPUS (%d).",
+		    kvm_max_vcpu_id, kvm_max_vcpus);
+
+	test_vcpu_creation(0, kvm_max_vcpus);
+
+	if (kvm_max_vcpu_id > kvm_max_vcpus)
+		test_vcpu_creation(
+			kvm_max_vcpu_id - kvm_max_vcpus, kvm_max_vcpus);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/kvm_page_table_test.c b/tools/testing/selftests/kvm/kvm_page_table_test.c
new file mode 100644
index 000000000000..dd8b12f626d3
--- /dev/null
+++ b/tools/testing/selftests/kvm/kvm_page_table_test.c
@@ -0,0 +1,477 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM page table test
+ *
+ * Copyright (C) 2021, Huawei, Inc.
+ *
+ * Make sure that THP has been enabled or enough HUGETLB pages with specific
+ * page size have been pre-allocated on your system, if you are planning to
+ * use hugepages to back the guest memory for testing.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <pthread.h>
+#include <semaphore.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "guest_modes.h"
+#include "ucall_common.h"
+
+#define TEST_MEM_SLOT_INDEX             1
+
+/* Default size(1GB) of the memory for testing */
+#define DEFAULT_TEST_MEM_SIZE		(1 << 30)
+
+/* Default guest test virtual memory offset */
+#define DEFAULT_GUEST_TEST_MEM		0xc0000000
+
+/* Different guest memory accessing stages */
+enum test_stage {
+	KVM_BEFORE_MAPPINGS,
+	KVM_CREATE_MAPPINGS,
+	KVM_UPDATE_MAPPINGS,
+	KVM_ADJUST_MAPPINGS,
+	NUM_TEST_STAGES,
+};
+
+static const char * const test_stage_string[] = {
+	"KVM_BEFORE_MAPPINGS",
+	"KVM_CREATE_MAPPINGS",
+	"KVM_UPDATE_MAPPINGS",
+	"KVM_ADJUST_MAPPINGS",
+};
+
+struct test_args {
+	struct kvm_vm *vm;
+	uint64_t guest_test_virt_mem;
+	uint64_t host_page_size;
+	uint64_t host_num_pages;
+	uint64_t large_page_size;
+	uint64_t large_num_pages;
+	uint64_t host_pages_per_lpage;
+	enum vm_mem_backing_src_type src_type;
+	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+};
+
+/*
+ * Guest variables. Use addr_gva2hva() if these variables need
+ * to be changed in host.
+ */
+static enum test_stage guest_test_stage;
+
+/* Host variables */
+static uint32_t nr_vcpus = 1;
+static struct test_args test_args;
+static enum test_stage *current_stage;
+static bool host_quit;
+
+/* Whether the test stage is updated, or completed */
+static sem_t test_stage_updated;
+static sem_t test_stage_completed;
+
+/*
+ * Guest physical memory offset of the testing memory slot.
+ * This will be set to the topmost valid physical address minus
+ * the test memory size.
+ */
+static uint64_t guest_test_phys_mem;
+
+/*
+ * Guest virtual memory offset of the testing memory slot.
+ * Must not conflict with identity mapped test code.
+ */
+static uint64_t guest_test_virt_mem = DEFAULT_GUEST_TEST_MEM;
+
+static void guest_code(bool do_write)
+{
+	struct test_args *p = &test_args;
+	enum test_stage *current_stage = &guest_test_stage;
+	uint64_t addr;
+	int i, j;
+
+	while (true) {
+		addr = p->guest_test_virt_mem;
+
+		switch (READ_ONCE(*current_stage)) {
+		/*
+		 * All vCPU threads will be started in this stage,
+		 * where guest code of each vCPU will do nothing.
+		 */
+		case KVM_BEFORE_MAPPINGS:
+			break;
+
+		/*
+		 * Before dirty logging, vCPUs concurrently access the first
+		 * 8 bytes of each page (host page/large page) within the same
+		 * memory region with different accessing types (read/write).
+		 * Then KVM will create normal page mappings or huge block
+		 * mappings for them.
+		 */
+		case KVM_CREATE_MAPPINGS:
+			for (i = 0; i < p->large_num_pages; i++) {
+				if (do_write)
+					*(uint64_t *)addr = 0x0123456789ABCDEF;
+				else
+					READ_ONCE(*(uint64_t *)addr);
+
+				addr += p->large_page_size;
+			}
+			break;
+
+		/*
+		 * During dirty logging, KVM will only update attributes of the
+		 * normal page mappings from RO to RW if memory backing src type
+		 * is anonymous. In other cases, KVM will split the huge block
+		 * mappings into normal page mappings if memory backing src type
+		 * is THP or HUGETLB.
+		 */
+		case KVM_UPDATE_MAPPINGS:
+			if (p->src_type == VM_MEM_SRC_ANONYMOUS) {
+				for (i = 0; i < p->host_num_pages; i++) {
+					*(uint64_t *)addr = 0x0123456789ABCDEF;
+					addr += p->host_page_size;
+				}
+				break;
+			}
+
+			for (i = 0; i < p->large_num_pages; i++) {
+				/*
+				 * Write to the first host page in each large
+				 * page region, and triger break of large pages.
+				 */
+				*(uint64_t *)addr = 0x0123456789ABCDEF;
+
+				/*
+				 * Access the middle host pages in each large
+				 * page region. Since dirty logging is enabled,
+				 * this will create new mappings at the smallest
+				 * granularity.
+				 */
+				addr += p->large_page_size / 2;
+				for (j = 0; j < p->host_pages_per_lpage / 2; j++) {
+					READ_ONCE(*(uint64_t *)addr);
+					addr += p->host_page_size;
+				}
+			}
+			break;
+
+		/*
+		 * After dirty logging is stopped, vCPUs concurrently read
+		 * from every single host page. Then KVM will coalesce the
+		 * split page mappings back to block mappings. And a TLB
+		 * conflict abort could occur here if TLB entries of the
+		 * page mappings are not fully invalidated.
+		 */
+		case KVM_ADJUST_MAPPINGS:
+			for (i = 0; i < p->host_num_pages; i++) {
+				READ_ONCE(*(uint64_t *)addr);
+				addr += p->host_page_size;
+			}
+			break;
+
+		default:
+			GUEST_ASSERT(0);
+		}
+
+		GUEST_SYNC(1);
+	}
+}
+
+static void *vcpu_worker(void *data)
+{
+	struct kvm_vcpu *vcpu = data;
+	bool do_write = !(vcpu->id % 2);
+	struct timespec start;
+	struct timespec ts_diff;
+	enum test_stage stage;
+	int ret;
+
+	vcpu_args_set(vcpu, 1, do_write);
+
+	while (!READ_ONCE(host_quit)) {
+		ret = sem_wait(&test_stage_updated);
+		TEST_ASSERT(ret == 0, "Error in sem_wait");
+
+		if (READ_ONCE(host_quit))
+			return NULL;
+
+		clock_gettime(CLOCK_MONOTONIC, &start);
+		ret = _vcpu_run(vcpu);
+		ts_diff = timespec_elapsed(start);
+
+		TEST_ASSERT(ret == 0, "vcpu_run failed: %d", ret);
+		TEST_ASSERT(get_ucall(vcpu, NULL) == UCALL_SYNC,
+			    "Invalid guest sync status: exit_reason=%s",
+			    exit_reason_str(vcpu->run->exit_reason));
+
+		pr_debug("Got sync event from vCPU %d\n", vcpu->id);
+		stage = READ_ONCE(*current_stage);
+
+		/*
+		 * Here we can know the execution time of every
+		 * single vcpu running in different test stages.
+		 */
+		pr_debug("vCPU %d has completed stage %s\n"
+			 "execution time is: %ld.%.9lds\n\n",
+			 vcpu->id, test_stage_string[stage],
+			 ts_diff.tv_sec, ts_diff.tv_nsec);
+
+		ret = sem_post(&test_stage_completed);
+		TEST_ASSERT(ret == 0, "Error in sem_post");
+	}
+
+	return NULL;
+}
+
+struct test_params {
+	uint64_t phys_offset;
+	uint64_t test_mem_size;
+	enum vm_mem_backing_src_type src_type;
+};
+
+static struct kvm_vm *pre_init_before_test(enum vm_guest_mode mode, void *arg)
+{
+	int ret;
+	struct test_params *p = arg;
+	enum vm_mem_backing_src_type src_type = p->src_type;
+	uint64_t large_page_size = get_backing_src_pagesz(src_type);
+	uint64_t guest_page_size = vm_guest_mode_params[mode].page_size;
+	uint64_t host_page_size = getpagesize();
+	uint64_t test_mem_size = p->test_mem_size;
+	uint64_t guest_num_pages;
+	uint64_t alignment;
+	void *host_test_mem;
+	struct kvm_vm *vm;
+
+	/* Align up the test memory size */
+	alignment = max(large_page_size, guest_page_size);
+	test_mem_size = (test_mem_size + alignment - 1) & ~(alignment - 1);
+
+	/* Create a VM with enough guest pages */
+	guest_num_pages = test_mem_size / guest_page_size;
+	vm = __vm_create_with_vcpus(VM_SHAPE(mode), nr_vcpus, guest_num_pages,
+				    guest_code, test_args.vcpus);
+
+	/* Align down GPA of the testing memslot */
+	if (!p->phys_offset)
+		guest_test_phys_mem = (vm->max_gfn - guest_num_pages) *
+				       guest_page_size;
+	else
+		guest_test_phys_mem = p->phys_offset;
+#ifdef __s390x__
+	alignment = max(0x100000UL, alignment);
+#endif
+	guest_test_phys_mem = align_down(guest_test_phys_mem, alignment);
+
+	/* Set up the shared data structure test_args */
+	test_args.vm = vm;
+	test_args.guest_test_virt_mem = guest_test_virt_mem;
+	test_args.host_page_size = host_page_size;
+	test_args.host_num_pages = test_mem_size / host_page_size;
+	test_args.large_page_size = large_page_size;
+	test_args.large_num_pages = test_mem_size / large_page_size;
+	test_args.host_pages_per_lpage = large_page_size / host_page_size;
+	test_args.src_type = src_type;
+
+	/* Add an extra memory slot with specified backing src type */
+	vm_userspace_mem_region_add(vm, src_type, guest_test_phys_mem,
+				    TEST_MEM_SLOT_INDEX, guest_num_pages, 0);
+
+	/* Do mapping(GVA->GPA) for the testing memory slot */
+	virt_map(vm, guest_test_virt_mem, guest_test_phys_mem, guest_num_pages);
+
+	/* Cache the HVA pointer of the region */
+	host_test_mem = addr_gpa2hva(vm, (vm_paddr_t)guest_test_phys_mem);
+
+	/* Export shared structure test_args to guest */
+	sync_global_to_guest(vm, test_args);
+
+	ret = sem_init(&test_stage_updated, 0, 0);
+	TEST_ASSERT(ret == 0, "Error in sem_init");
+
+	ret = sem_init(&test_stage_completed, 0, 0);
+	TEST_ASSERT(ret == 0, "Error in sem_init");
+
+	current_stage = addr_gva2hva(vm, (vm_vaddr_t)(&guest_test_stage));
+	*current_stage = NUM_TEST_STAGES;
+
+	pr_info("Testing guest mode: %s\n", vm_guest_mode_string(mode));
+	pr_info("Testing memory backing src type: %s\n",
+		vm_mem_backing_src_alias(src_type)->name);
+	pr_info("Testing memory backing src granularity: 0x%lx\n",
+		large_page_size);
+	pr_info("Testing memory size(aligned): 0x%lx\n", test_mem_size);
+	pr_info("Guest physical test memory offset: 0x%lx\n",
+		guest_test_phys_mem);
+	pr_info("Host  virtual  test memory offset: 0x%lx\n",
+		(uint64_t)host_test_mem);
+	pr_info("Number of testing vCPUs: %d\n", nr_vcpus);
+
+	return vm;
+}
+
+static void vcpus_complete_new_stage(enum test_stage stage)
+{
+	int ret;
+	int vcpus;
+
+	/* Wake up all the vcpus to run new test stage */
+	for (vcpus = 0; vcpus < nr_vcpus; vcpus++) {
+		ret = sem_post(&test_stage_updated);
+		TEST_ASSERT(ret == 0, "Error in sem_post");
+	}
+	pr_debug("All vcpus have been notified to continue\n");
+
+	/* Wait for all the vcpus to complete new test stage */
+	for (vcpus = 0; vcpus < nr_vcpus; vcpus++) {
+		ret = sem_wait(&test_stage_completed);
+		TEST_ASSERT(ret == 0, "Error in sem_wait");
+
+		pr_debug("%d vcpus have completed stage %s\n",
+			 vcpus + 1, test_stage_string[stage]);
+	}
+
+	pr_debug("All vcpus have completed stage %s\n",
+		 test_stage_string[stage]);
+}
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	pthread_t *vcpu_threads;
+	struct kvm_vm *vm;
+	struct timespec start;
+	struct timespec ts_diff;
+	int ret, i;
+
+	/* Create VM with vCPUs and make some pre-initialization */
+	vm = pre_init_before_test(mode, arg);
+
+	vcpu_threads = malloc(nr_vcpus * sizeof(*vcpu_threads));
+	TEST_ASSERT(vcpu_threads, "Memory allocation failed");
+
+	host_quit = false;
+	*current_stage = KVM_BEFORE_MAPPINGS;
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_create(&vcpu_threads[i], NULL, vcpu_worker,
+			       test_args.vcpus[i]);
+
+	vcpus_complete_new_stage(*current_stage);
+	pr_info("Started all vCPUs successfully\n");
+
+	/* Test the stage of KVM creating mappings */
+	*current_stage = KVM_CREATE_MAPPINGS;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	vcpus_complete_new_stage(*current_stage);
+	ts_diff = timespec_elapsed(start);
+
+	pr_info("KVM_CREATE_MAPPINGS: total execution time: %ld.%.9lds\n\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	/* Test the stage of KVM updating mappings */
+	vm_mem_region_set_flags(vm, TEST_MEM_SLOT_INDEX,
+				KVM_MEM_LOG_DIRTY_PAGES);
+
+	*current_stage = KVM_UPDATE_MAPPINGS;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	vcpus_complete_new_stage(*current_stage);
+	ts_diff = timespec_elapsed(start);
+
+	pr_info("KVM_UPDATE_MAPPINGS: total execution time: %ld.%.9lds\n\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	/* Test the stage of KVM adjusting mappings */
+	vm_mem_region_set_flags(vm, TEST_MEM_SLOT_INDEX, 0);
+
+	*current_stage = KVM_ADJUST_MAPPINGS;
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	vcpus_complete_new_stage(*current_stage);
+	ts_diff = timespec_elapsed(start);
+
+	pr_info("KVM_ADJUST_MAPPINGS: total execution time: %ld.%.9lds\n\n",
+		ts_diff.tv_sec, ts_diff.tv_nsec);
+
+	/* Tell the vcpu thread to quit */
+	host_quit = true;
+	for (i = 0; i < nr_vcpus; i++) {
+		ret = sem_post(&test_stage_updated);
+		TEST_ASSERT(ret == 0, "Error in sem_post");
+	}
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_join(vcpu_threads[i], NULL);
+
+	ret = sem_destroy(&test_stage_updated);
+	TEST_ASSERT(ret == 0, "Error in sem_destroy");
+
+	ret = sem_destroy(&test_stage_completed);
+	TEST_ASSERT(ret == 0, "Error in sem_destroy");
+
+	free(vcpu_threads);
+	kvm_vm_free(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-p offset] [-m mode] "
+	       "[-b mem-size] [-v vcpus] [-s mem-type]\n", name);
+	puts("");
+	printf(" -p: specify guest physical test memory offset\n"
+	       "     Warning: a low offset can conflict with the loaded test code.\n");
+	guest_modes_help();
+	printf(" -b: specify size of the memory region for testing. e.g. 10M or 3G.\n"
+	       "     (default: 1G)\n");
+	printf(" -v: specify the number of vCPUs to run\n"
+	       "     (default: 1)\n");
+	backing_src_help("-s");
+	puts("");
+}
+
+int main(int argc, char *argv[])
+{
+	int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+	struct test_params p = {
+		.test_mem_size = DEFAULT_TEST_MEM_SIZE,
+		.src_type = DEFAULT_VM_MEM_SRC,
+	};
+	int opt;
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "hp:m:b:v:s:")) != -1) {
+		switch (opt) {
+		case 'p':
+			p.phys_offset = strtoull(optarg, NULL, 0);
+			break;
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'b':
+			p.test_mem_size = parse_size(optarg);
+			break;
+		case 'v':
+			nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			TEST_ASSERT(nr_vcpus <= max_vcpus,
+				    "Invalid number of vcpus, must be between 1 and %d", max_vcpus);
+			break;
+		case 's':
+			p.src_type = parse_backing_src_type(optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			exit(0);
+		}
+	}
+
+	for_each_guest_mode(run_test, &p);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/gic.c b/tools/testing/selftests/kvm/lib/arm64/gic.c
new file mode 100644
index 000000000000..b023868fe0b8
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/gic.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM Generic Interrupt Controller (GIC) support
+ */
+
+#include <errno.h>
+#include <linux/bits.h>
+#include <linux/sizes.h>
+
+#include "kvm_util.h"
+
+#include <gic.h>
+#include "gic_private.h"
+#include "processor.h"
+#include "spinlock.h"
+
+static const struct gic_common_ops *gic_common_ops;
+static struct spinlock gic_lock;
+
+static void gic_cpu_init(unsigned int cpu)
+{
+	gic_common_ops->gic_cpu_init(cpu);
+}
+
+static void gic_dist_init(enum gic_type type, unsigned int nr_cpus)
+{
+	const struct gic_common_ops *gic_ops = NULL;
+
+	spin_lock(&gic_lock);
+
+	/* Distributor initialization is needed only once per VM */
+	if (gic_common_ops) {
+		spin_unlock(&gic_lock);
+		return;
+	}
+
+	if (type == GIC_V3)
+		gic_ops = &gicv3_ops;
+
+	GUEST_ASSERT(gic_ops);
+
+	gic_ops->gic_init(nr_cpus);
+	gic_common_ops = gic_ops;
+
+	/* Make sure that the initialized data is visible to all the vCPUs */
+	dsb(sy);
+
+	spin_unlock(&gic_lock);
+}
+
+void gic_init(enum gic_type type, unsigned int nr_cpus)
+{
+	uint32_t cpu = guest_get_vcpuid();
+
+	GUEST_ASSERT(type < GIC_TYPE_MAX);
+	GUEST_ASSERT(nr_cpus);
+
+	gic_dist_init(type, nr_cpus);
+	gic_cpu_init(cpu);
+}
+
+void gic_irq_enable(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_enable(intid);
+}
+
+void gic_irq_disable(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_disable(intid);
+}
+
+unsigned int gic_get_and_ack_irq(void)
+{
+	uint64_t irqstat;
+	unsigned int intid;
+
+	GUEST_ASSERT(gic_common_ops);
+
+	irqstat = gic_common_ops->gic_read_iar();
+	intid = irqstat & GENMASK(23, 0);
+
+	return intid;
+}
+
+void gic_set_eoi(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_write_eoir(intid);
+}
+
+void gic_set_dir(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_write_dir(intid);
+}
+
+void gic_set_eoi_split(bool split)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_set_eoi_split(split);
+}
+
+void gic_set_priority_mask(uint64_t pmr)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_set_priority_mask(pmr);
+}
+
+void gic_set_priority(unsigned int intid, unsigned int prio)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_set_priority(intid, prio);
+}
+
+void gic_irq_set_active(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_set_active(intid);
+}
+
+void gic_irq_clear_active(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_clear_active(intid);
+}
+
+bool gic_irq_get_active(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	return gic_common_ops->gic_irq_get_active(intid);
+}
+
+void gic_irq_set_pending(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_set_pending(intid);
+}
+
+void gic_irq_clear_pending(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_clear_pending(intid);
+}
+
+bool gic_irq_get_pending(unsigned int intid)
+{
+	GUEST_ASSERT(gic_common_ops);
+	return gic_common_ops->gic_irq_get_pending(intid);
+}
+
+void gic_irq_set_config(unsigned int intid, bool is_edge)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_set_config(intid, is_edge);
+}
+
+void gic_irq_set_group(unsigned int intid, bool group)
+{
+	GUEST_ASSERT(gic_common_ops);
+	gic_common_ops->gic_irq_set_group(intid, group);
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/gic_private.h b/tools/testing/selftests/kvm/lib/arm64/gic_private.h
new file mode 100644
index 000000000000..b6a7e30c3eb1
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/gic_private.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * ARM Generic Interrupt Controller (GIC) private defines that's only
+ * shared among the GIC library code.
+ */
+
+#ifndef SELFTEST_KVM_GIC_PRIVATE_H
+#define SELFTEST_KVM_GIC_PRIVATE_H
+
+struct gic_common_ops {
+	void (*gic_init)(unsigned int nr_cpus);
+	void (*gic_cpu_init)(unsigned int cpu);
+	void (*gic_irq_enable)(unsigned int intid);
+	void (*gic_irq_disable)(unsigned int intid);
+	uint64_t (*gic_read_iar)(void);
+	void (*gic_write_eoir)(uint32_t irq);
+	void (*gic_write_dir)(uint32_t irq);
+	void (*gic_set_eoi_split)(bool split);
+	void (*gic_set_priority_mask)(uint64_t mask);
+	void (*gic_set_priority)(uint32_t intid, uint32_t prio);
+	void (*gic_irq_set_active)(uint32_t intid);
+	void (*gic_irq_clear_active)(uint32_t intid);
+	bool (*gic_irq_get_active)(uint32_t intid);
+	void (*gic_irq_set_pending)(uint32_t intid);
+	void (*gic_irq_clear_pending)(uint32_t intid);
+	bool (*gic_irq_get_pending)(uint32_t intid);
+	void (*gic_irq_set_config)(uint32_t intid, bool is_edge);
+	void (*gic_irq_set_group)(uint32_t intid, bool group);
+};
+
+extern const struct gic_common_ops gicv3_ops;
+
+#endif /* SELFTEST_KVM_GIC_PRIVATE_H */
diff --git a/tools/testing/selftests/kvm/lib/arm64/gic_v3.c b/tools/testing/selftests/kvm/lib/arm64/gic_v3.c
new file mode 100644
index 000000000000..50754a27f493
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/gic_v3.c
@@ -0,0 +1,449 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM Generic Interrupt Controller (GIC) v3 support
+ */
+
+#include <linux/sizes.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "delay.h"
+
+#include "gic.h"
+#include "gic_v3.h"
+#include "gic_private.h"
+
+#define GICV3_MAX_CPUS			512
+
+#define GICD_INT_DEF_PRI		0xa0
+#define GICD_INT_DEF_PRI_X4		((GICD_INT_DEF_PRI << 24) |\
+					(GICD_INT_DEF_PRI << 16) |\
+					(GICD_INT_DEF_PRI << 8) |\
+					GICD_INT_DEF_PRI)
+
+#define ICC_PMR_DEF_PRIO		0xf0
+
+struct gicv3_data {
+	unsigned int nr_cpus;
+	unsigned int nr_spis;
+};
+
+#define sgi_base_from_redist(redist_base)	(redist_base + SZ_64K)
+#define DIST_BIT				(1U << 31)
+
+enum gicv3_intid_range {
+	SGI_RANGE,
+	PPI_RANGE,
+	SPI_RANGE,
+	INVALID_RANGE,
+};
+
+static struct gicv3_data gicv3_data;
+
+static void gicv3_gicd_wait_for_rwp(void)
+{
+	unsigned int count = 100000; /* 1s */
+
+	while (readl(GICD_BASE_GVA + GICD_CTLR) & GICD_CTLR_RWP) {
+		GUEST_ASSERT(count--);
+		udelay(10);
+	}
+}
+
+static inline volatile void *gicr_base_cpu(uint32_t cpu)
+{
+	/* Align all the redistributors sequentially */
+	return GICR_BASE_GVA + cpu * SZ_64K * 2;
+}
+
+static void gicv3_gicr_wait_for_rwp(uint32_t cpu)
+{
+	unsigned int count = 100000; /* 1s */
+
+	while (readl(gicr_base_cpu(cpu) + GICR_CTLR) & GICR_CTLR_RWP) {
+		GUEST_ASSERT(count--);
+		udelay(10);
+	}
+}
+
+static void gicv3_wait_for_rwp(uint32_t cpu_or_dist)
+{
+	if (cpu_or_dist & DIST_BIT)
+		gicv3_gicd_wait_for_rwp();
+	else
+		gicv3_gicr_wait_for_rwp(cpu_or_dist);
+}
+
+static enum gicv3_intid_range get_intid_range(unsigned int intid)
+{
+	switch (intid) {
+	case 0 ... 15:
+		return SGI_RANGE;
+	case 16 ... 31:
+		return PPI_RANGE;
+	case 32 ... 1019:
+		return SPI_RANGE;
+	}
+
+	/* We should not be reaching here */
+	GUEST_ASSERT(0);
+
+	return INVALID_RANGE;
+}
+
+static uint64_t gicv3_read_iar(void)
+{
+	uint64_t irqstat = read_sysreg_s(SYS_ICC_IAR1_EL1);
+
+	dsb(sy);
+	return irqstat;
+}
+
+static void gicv3_write_eoir(uint32_t irq)
+{
+	write_sysreg_s(irq, SYS_ICC_EOIR1_EL1);
+	isb();
+}
+
+static void gicv3_write_dir(uint32_t irq)
+{
+	write_sysreg_s(irq, SYS_ICC_DIR_EL1);
+	isb();
+}
+
+static void gicv3_set_priority_mask(uint64_t mask)
+{
+	write_sysreg_s(mask, SYS_ICC_PMR_EL1);
+}
+
+static void gicv3_set_eoi_split(bool split)
+{
+	uint32_t val;
+
+	/*
+	 * All other fields are read-only, so no need to read CTLR first. In
+	 * fact, the kernel does the same.
+	 */
+	val = split ? (1U << 1) : 0;
+	write_sysreg_s(val, SYS_ICC_CTLR_EL1);
+	isb();
+}
+
+uint32_t gicv3_reg_readl(uint32_t cpu_or_dist, uint64_t offset)
+{
+	volatile void *base = cpu_or_dist & DIST_BIT ? GICD_BASE_GVA
+			: sgi_base_from_redist(gicr_base_cpu(cpu_or_dist));
+	return readl(base + offset);
+}
+
+void gicv3_reg_writel(uint32_t cpu_or_dist, uint64_t offset, uint32_t reg_val)
+{
+	volatile void *base = cpu_or_dist & DIST_BIT ? GICD_BASE_GVA
+			: sgi_base_from_redist(gicr_base_cpu(cpu_or_dist));
+	writel(reg_val, base + offset);
+}
+
+uint32_t gicv3_getl_fields(uint32_t cpu_or_dist, uint64_t offset, uint32_t mask)
+{
+	return gicv3_reg_readl(cpu_or_dist, offset) & mask;
+}
+
+void gicv3_setl_fields(uint32_t cpu_or_dist, uint64_t offset,
+		uint32_t mask, uint32_t reg_val)
+{
+	uint32_t tmp = gicv3_reg_readl(cpu_or_dist, offset) & ~mask;
+
+	tmp |= (reg_val & mask);
+	gicv3_reg_writel(cpu_or_dist, offset, tmp);
+}
+
+/*
+ * We use a single offset for the distributor and redistributor maps as they
+ * have the same value in both. The only exceptions are registers that only
+ * exist in one and not the other, like GICR_WAKER that doesn't exist in the
+ * distributor map. Such registers are conveniently marked as reserved in the
+ * map that doesn't implement it; like GICR_WAKER's offset of 0x0014 being
+ * marked as "Reserved" in the Distributor map.
+ */
+static void gicv3_access_reg(uint32_t intid, uint64_t offset,
+		uint32_t reg_bits, uint32_t bits_per_field,
+		bool write, uint32_t *val)
+{
+	uint32_t cpu = guest_get_vcpuid();
+	enum gicv3_intid_range intid_range = get_intid_range(intid);
+	uint32_t fields_per_reg, index, mask, shift;
+	uint32_t cpu_or_dist;
+
+	GUEST_ASSERT(bits_per_field <= reg_bits);
+	GUEST_ASSERT(!write || *val < (1U << bits_per_field));
+	/*
+	 * This function does not support 64 bit accesses. Just asserting here
+	 * until we implement readq/writeq.
+	 */
+	GUEST_ASSERT(reg_bits == 32);
+
+	fields_per_reg = reg_bits / bits_per_field;
+	index = intid % fields_per_reg;
+	shift = index * bits_per_field;
+	mask = ((1U << bits_per_field) - 1) << shift;
+
+	/* Set offset to the actual register holding intid's config. */
+	offset += (intid / fields_per_reg) * (reg_bits / 8);
+
+	cpu_or_dist = (intid_range == SPI_RANGE) ? DIST_BIT : cpu;
+
+	if (write)
+		gicv3_setl_fields(cpu_or_dist, offset, mask, *val << shift);
+	*val = gicv3_getl_fields(cpu_or_dist, offset, mask) >> shift;
+}
+
+static void gicv3_write_reg(uint32_t intid, uint64_t offset,
+		uint32_t reg_bits, uint32_t bits_per_field, uint32_t val)
+{
+	gicv3_access_reg(intid, offset, reg_bits,
+			bits_per_field, true, &val);
+}
+
+static uint32_t gicv3_read_reg(uint32_t intid, uint64_t offset,
+		uint32_t reg_bits, uint32_t bits_per_field)
+{
+	uint32_t val;
+
+	gicv3_access_reg(intid, offset, reg_bits,
+			bits_per_field, false, &val);
+	return val;
+}
+
+static void gicv3_set_priority(uint32_t intid, uint32_t prio)
+{
+	gicv3_write_reg(intid, GICD_IPRIORITYR, 32, 8, prio);
+}
+
+/* Sets the intid to be level-sensitive or edge-triggered. */
+static void gicv3_irq_set_config(uint32_t intid, bool is_edge)
+{
+	uint32_t val;
+
+	/* N/A for private interrupts. */
+	GUEST_ASSERT(get_intid_range(intid) == SPI_RANGE);
+	val = is_edge ? 2 : 0;
+	gicv3_write_reg(intid, GICD_ICFGR, 32, 2, val);
+}
+
+static void gicv3_irq_enable(uint32_t intid)
+{
+	bool is_spi = get_intid_range(intid) == SPI_RANGE;
+	uint32_t cpu = guest_get_vcpuid();
+
+	gicv3_write_reg(intid, GICD_ISENABLER, 32, 1, 1);
+	gicv3_wait_for_rwp(is_spi ? DIST_BIT : cpu);
+}
+
+static void gicv3_irq_disable(uint32_t intid)
+{
+	bool is_spi = get_intid_range(intid) == SPI_RANGE;
+	uint32_t cpu = guest_get_vcpuid();
+
+	gicv3_write_reg(intid, GICD_ICENABLER, 32, 1, 1);
+	gicv3_wait_for_rwp(is_spi ? DIST_BIT : cpu);
+}
+
+static void gicv3_irq_set_active(uint32_t intid)
+{
+	gicv3_write_reg(intid, GICD_ISACTIVER, 32, 1, 1);
+}
+
+static void gicv3_irq_clear_active(uint32_t intid)
+{
+	gicv3_write_reg(intid, GICD_ICACTIVER, 32, 1, 1);
+}
+
+static bool gicv3_irq_get_active(uint32_t intid)
+{
+	return gicv3_read_reg(intid, GICD_ISACTIVER, 32, 1);
+}
+
+static void gicv3_irq_set_pending(uint32_t intid)
+{
+	gicv3_write_reg(intid, GICD_ISPENDR, 32, 1, 1);
+}
+
+static void gicv3_irq_clear_pending(uint32_t intid)
+{
+	gicv3_write_reg(intid, GICD_ICPENDR, 32, 1, 1);
+}
+
+static bool gicv3_irq_get_pending(uint32_t intid)
+{
+	return gicv3_read_reg(intid, GICD_ISPENDR, 32, 1);
+}
+
+static void gicv3_enable_redist(volatile void *redist_base)
+{
+	uint32_t val = readl(redist_base + GICR_WAKER);
+	unsigned int count = 100000; /* 1s */
+
+	val &= ~GICR_WAKER_ProcessorSleep;
+	writel(val, redist_base + GICR_WAKER);
+
+	/* Wait until the processor is 'active' */
+	while (readl(redist_base + GICR_WAKER) & GICR_WAKER_ChildrenAsleep) {
+		GUEST_ASSERT(count--);
+		udelay(10);
+	}
+}
+
+static void gicv3_set_group(uint32_t intid, bool grp)
+{
+	uint32_t cpu_or_dist;
+	uint32_t val;
+
+	cpu_or_dist = (get_intid_range(intid) == SPI_RANGE) ? DIST_BIT : guest_get_vcpuid();
+	val = gicv3_reg_readl(cpu_or_dist, GICD_IGROUPR + (intid / 32) * 4);
+	if (grp)
+		val |= BIT(intid % 32);
+	else
+		val &= ~BIT(intid % 32);
+	gicv3_reg_writel(cpu_or_dist, GICD_IGROUPR + (intid / 32) * 4, val);
+}
+
+static void gicv3_cpu_init(unsigned int cpu)
+{
+	volatile void *sgi_base;
+	unsigned int i;
+	volatile void *redist_base_cpu;
+	u64 typer;
+
+	GUEST_ASSERT(cpu < gicv3_data.nr_cpus);
+
+	redist_base_cpu = gicr_base_cpu(cpu);
+	sgi_base = sgi_base_from_redist(redist_base_cpu);
+
+	/* Verify assumption that GICR_TYPER.Processor_number == cpu */
+	typer = readq_relaxed(redist_base_cpu + GICR_TYPER);
+	GUEST_ASSERT_EQ(GICR_TYPER_CPU_NUMBER(typer), cpu);
+
+	gicv3_enable_redist(redist_base_cpu);
+
+	/*
+	 * Mark all the SGI and PPI interrupts as non-secure Group-1.
+	 * Also, deactivate and disable them.
+	 */
+	writel(~0, sgi_base + GICR_IGROUPR0);
+	writel(~0, sgi_base + GICR_ICACTIVER0);
+	writel(~0, sgi_base + GICR_ICENABLER0);
+
+	/* Set a default priority for all the SGIs and PPIs */
+	for (i = 0; i < 32; i += 4)
+		writel(GICD_INT_DEF_PRI_X4,
+				sgi_base + GICR_IPRIORITYR0 + i);
+
+	gicv3_gicr_wait_for_rwp(cpu);
+
+	/* Enable the GIC system register (ICC_*) access */
+	write_sysreg_s(read_sysreg_s(SYS_ICC_SRE_EL1) | ICC_SRE_EL1_SRE,
+			SYS_ICC_SRE_EL1);
+
+	/* Set a default priority threshold */
+	write_sysreg_s(ICC_PMR_DEF_PRIO, SYS_ICC_PMR_EL1);
+
+	/* Disable Group-0 interrupts */
+	write_sysreg_s(ICC_IGRPEN0_EL1_MASK, SYS_ICC_IGRPEN1_EL1);
+	/* Enable non-secure Group-1 interrupts */
+	write_sysreg_s(ICC_IGRPEN1_EL1_MASK, SYS_ICC_IGRPEN1_EL1);
+}
+
+static void gicv3_dist_init(void)
+{
+	unsigned int i;
+
+	/* Disable the distributor until we set things up */
+	writel(0, GICD_BASE_GVA + GICD_CTLR);
+	gicv3_gicd_wait_for_rwp();
+
+	/*
+	 * Mark all the SPI interrupts as non-secure Group-1.
+	 * Also, deactivate and disable them.
+	 */
+	for (i = 32; i < gicv3_data.nr_spis; i += 32) {
+		writel(~0, GICD_BASE_GVA + GICD_IGROUPR + i / 8);
+		writel(~0, GICD_BASE_GVA + GICD_ICACTIVER + i / 8);
+		writel(~0, GICD_BASE_GVA + GICD_ICENABLER + i / 8);
+	}
+
+	/* Set a default priority for all the SPIs */
+	for (i = 32; i < gicv3_data.nr_spis; i += 4)
+		writel(GICD_INT_DEF_PRI_X4,
+				GICD_BASE_GVA + GICD_IPRIORITYR + i);
+
+	/* Wait for the settings to sync-in */
+	gicv3_gicd_wait_for_rwp();
+
+	/* Finally, enable the distributor globally with ARE */
+	writel(GICD_CTLR_ARE_NS | GICD_CTLR_ENABLE_G1A |
+			GICD_CTLR_ENABLE_G1, GICD_BASE_GVA + GICD_CTLR);
+	gicv3_gicd_wait_for_rwp();
+}
+
+static void gicv3_init(unsigned int nr_cpus)
+{
+	GUEST_ASSERT(nr_cpus <= GICV3_MAX_CPUS);
+
+	gicv3_data.nr_cpus = nr_cpus;
+	gicv3_data.nr_spis = GICD_TYPER_SPIS(
+				readl(GICD_BASE_GVA + GICD_TYPER));
+	if (gicv3_data.nr_spis > 1020)
+		gicv3_data.nr_spis = 1020;
+
+	/*
+	 * Initialize only the distributor for now.
+	 * The redistributor and CPU interfaces are initialized
+	 * later for every PE.
+	 */
+	gicv3_dist_init();
+}
+
+const struct gic_common_ops gicv3_ops = {
+	.gic_init = gicv3_init,
+	.gic_cpu_init = gicv3_cpu_init,
+	.gic_irq_enable = gicv3_irq_enable,
+	.gic_irq_disable = gicv3_irq_disable,
+	.gic_read_iar = gicv3_read_iar,
+	.gic_write_eoir = gicv3_write_eoir,
+	.gic_write_dir = gicv3_write_dir,
+	.gic_set_priority_mask = gicv3_set_priority_mask,
+	.gic_set_eoi_split = gicv3_set_eoi_split,
+	.gic_set_priority = gicv3_set_priority,
+	.gic_irq_set_active = gicv3_irq_set_active,
+	.gic_irq_clear_active = gicv3_irq_clear_active,
+	.gic_irq_get_active = gicv3_irq_get_active,
+	.gic_irq_set_pending = gicv3_irq_set_pending,
+	.gic_irq_clear_pending = gicv3_irq_clear_pending,
+	.gic_irq_get_pending = gicv3_irq_get_pending,
+	.gic_irq_set_config = gicv3_irq_set_config,
+	.gic_irq_set_group = gicv3_set_group,
+};
+
+void gic_rdist_enable_lpis(vm_paddr_t cfg_table, size_t cfg_table_size,
+			   vm_paddr_t pend_table)
+{
+	volatile void *rdist_base = gicr_base_cpu(guest_get_vcpuid());
+
+	u32 ctlr;
+	u64 val;
+
+	val = (cfg_table |
+	       GICR_PROPBASER_InnerShareable |
+	       GICR_PROPBASER_RaWaWb |
+	       ((ilog2(cfg_table_size) - 1) & GICR_PROPBASER_IDBITS_MASK));
+	writeq_relaxed(val, rdist_base + GICR_PROPBASER);
+
+	val = (pend_table |
+	       GICR_PENDBASER_InnerShareable |
+	       GICR_PENDBASER_RaWaWb);
+	writeq_relaxed(val, rdist_base + GICR_PENDBASER);
+
+	ctlr = readl_relaxed(rdist_base + GICR_CTLR);
+	ctlr |= GICR_CTLR_ENABLE_LPIS;
+	writel_relaxed(ctlr, rdist_base + GICR_CTLR);
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/gic_v3_its.c b/tools/testing/selftests/kvm/lib/arm64/gic_v3_its.c
new file mode 100644
index 000000000000..7f9fdcf42ae6
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/gic_v3_its.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Guest ITS library, generously donated by drivers/irqchip/irq-gic-v3-its.c
+ * over in the kernel tree.
+ */
+
+#include <linux/kvm.h>
+#include <linux/sizes.h>
+#include <asm/kvm_para.h>
+#include <asm/kvm.h>
+
+#include "kvm_util.h"
+#include "vgic.h"
+#include "gic.h"
+#include "gic_v3.h"
+#include "processor.h"
+
+#define GITS_COLLECTION_TARGET_SHIFT 16
+
+static u64 its_read_u64(unsigned long offset)
+{
+	return readq_relaxed(GITS_BASE_GVA + offset);
+}
+
+static void its_write_u64(unsigned long offset, u64 val)
+{
+	writeq_relaxed(val, GITS_BASE_GVA + offset);
+}
+
+static u32 its_read_u32(unsigned long offset)
+{
+	return readl_relaxed(GITS_BASE_GVA + offset);
+}
+
+static void its_write_u32(unsigned long offset, u32 val)
+{
+	writel_relaxed(val, GITS_BASE_GVA + offset);
+}
+
+static unsigned long its_find_baser(unsigned int type)
+{
+	int i;
+
+	for (i = 0; i < GITS_BASER_NR_REGS; i++) {
+		u64 baser;
+		unsigned long offset = GITS_BASER + (i * sizeof(baser));
+
+		baser = its_read_u64(offset);
+		if (GITS_BASER_TYPE(baser) == type)
+			return offset;
+	}
+
+	GUEST_FAIL("Couldn't find an ITS BASER of type %u", type);
+	return -1;
+}
+
+static void its_install_table(unsigned int type, vm_paddr_t base, size_t size)
+{
+	unsigned long offset = its_find_baser(type);
+	u64 baser;
+
+	baser = ((size / SZ_64K) - 1) |
+		GITS_BASER_PAGE_SIZE_64K |
+		GITS_BASER_InnerShareable |
+		base |
+		GITS_BASER_RaWaWb |
+		GITS_BASER_VALID;
+
+	its_write_u64(offset, baser);
+}
+
+static void its_install_cmdq(vm_paddr_t base, size_t size)
+{
+	u64 cbaser;
+
+	cbaser = ((size / SZ_4K) - 1) |
+		 GITS_CBASER_InnerShareable |
+		 base |
+		 GITS_CBASER_RaWaWb |
+		 GITS_CBASER_VALID;
+
+	its_write_u64(GITS_CBASER, cbaser);
+}
+
+void its_init(vm_paddr_t coll_tbl, size_t coll_tbl_sz,
+	      vm_paddr_t device_tbl, size_t device_tbl_sz,
+	      vm_paddr_t cmdq, size_t cmdq_size)
+{
+	u32 ctlr;
+
+	its_install_table(GITS_BASER_TYPE_COLLECTION, coll_tbl, coll_tbl_sz);
+	its_install_table(GITS_BASER_TYPE_DEVICE, device_tbl, device_tbl_sz);
+	its_install_cmdq(cmdq, cmdq_size);
+
+	ctlr = its_read_u32(GITS_CTLR);
+	ctlr |= GITS_CTLR_ENABLE;
+	its_write_u32(GITS_CTLR, ctlr);
+}
+
+struct its_cmd_block {
+	union {
+		u64	raw_cmd[4];
+		__le64	raw_cmd_le[4];
+	};
+};
+
+static inline void its_fixup_cmd(struct its_cmd_block *cmd)
+{
+	/* Let's fixup BE commands */
+	cmd->raw_cmd_le[0] = cpu_to_le64(cmd->raw_cmd[0]);
+	cmd->raw_cmd_le[1] = cpu_to_le64(cmd->raw_cmd[1]);
+	cmd->raw_cmd_le[2] = cpu_to_le64(cmd->raw_cmd[2]);
+	cmd->raw_cmd_le[3] = cpu_to_le64(cmd->raw_cmd[3]);
+}
+
+static void its_mask_encode(u64 *raw_cmd, u64 val, int h, int l)
+{
+	u64 mask = GENMASK_ULL(h, l);
+	*raw_cmd &= ~mask;
+	*raw_cmd |= (val << l) & mask;
+}
+
+static void its_encode_cmd(struct its_cmd_block *cmd, u8 cmd_nr)
+{
+	its_mask_encode(&cmd->raw_cmd[0], cmd_nr, 7, 0);
+}
+
+static void its_encode_devid(struct its_cmd_block *cmd, u32 devid)
+{
+	its_mask_encode(&cmd->raw_cmd[0], devid, 63, 32);
+}
+
+static void its_encode_event_id(struct its_cmd_block *cmd, u32 id)
+{
+	its_mask_encode(&cmd->raw_cmd[1], id, 31, 0);
+}
+
+static void its_encode_phys_id(struct its_cmd_block *cmd, u32 phys_id)
+{
+	its_mask_encode(&cmd->raw_cmd[1], phys_id, 63, 32);
+}
+
+static void its_encode_size(struct its_cmd_block *cmd, u8 size)
+{
+	its_mask_encode(&cmd->raw_cmd[1], size, 4, 0);
+}
+
+static void its_encode_itt(struct its_cmd_block *cmd, u64 itt_addr)
+{
+	its_mask_encode(&cmd->raw_cmd[2], itt_addr >> 8, 51, 8);
+}
+
+static void its_encode_valid(struct its_cmd_block *cmd, int valid)
+{
+	its_mask_encode(&cmd->raw_cmd[2], !!valid, 63, 63);
+}
+
+static void its_encode_target(struct its_cmd_block *cmd, u64 target_addr)
+{
+	its_mask_encode(&cmd->raw_cmd[2], target_addr >> 16, 51, 16);
+}
+
+static void its_encode_collection(struct its_cmd_block *cmd, u16 col)
+{
+	its_mask_encode(&cmd->raw_cmd[2], col, 15, 0);
+}
+
+static u64 procnum_to_rdbase(u32 vcpu_id)
+{
+	return vcpu_id << GITS_COLLECTION_TARGET_SHIFT;
+}
+
+#define GITS_CMDQ_POLL_ITERATIONS	0
+
+static void its_send_cmd(void *cmdq_base, struct its_cmd_block *cmd)
+{
+	u64 cwriter = its_read_u64(GITS_CWRITER);
+	struct its_cmd_block *dst = cmdq_base + cwriter;
+	u64 cbaser = its_read_u64(GITS_CBASER);
+	size_t cmdq_size;
+	u64 next;
+	int i;
+
+	cmdq_size = ((cbaser & 0xFF) + 1) * SZ_4K;
+
+	its_fixup_cmd(cmd);
+
+	WRITE_ONCE(*dst, *cmd);
+	dsb(ishst);
+	next = (cwriter + sizeof(*cmd)) % cmdq_size;
+	its_write_u64(GITS_CWRITER, next);
+
+	/*
+	 * Polling isn't necessary considering KVM's ITS emulation at the time
+	 * of writing this, as the CMDQ is processed synchronously after a write
+	 * to CWRITER.
+	 */
+	for (i = 0; its_read_u64(GITS_CREADR) != next; i++) {
+		__GUEST_ASSERT(i < GITS_CMDQ_POLL_ITERATIONS,
+			       "ITS didn't process command at offset %lu after %d iterations\n",
+			       cwriter, i);
+
+		cpu_relax();
+	}
+}
+
+void its_send_mapd_cmd(void *cmdq_base, u32 device_id, vm_paddr_t itt_base,
+		       size_t itt_size, bool valid)
+{
+	struct its_cmd_block cmd = {};
+
+	its_encode_cmd(&cmd, GITS_CMD_MAPD);
+	its_encode_devid(&cmd, device_id);
+	its_encode_size(&cmd, ilog2(itt_size) - 1);
+	its_encode_itt(&cmd, itt_base);
+	its_encode_valid(&cmd, valid);
+
+	its_send_cmd(cmdq_base, &cmd);
+}
+
+void its_send_mapc_cmd(void *cmdq_base, u32 vcpu_id, u32 collection_id, bool valid)
+{
+	struct its_cmd_block cmd = {};
+
+	its_encode_cmd(&cmd, GITS_CMD_MAPC);
+	its_encode_collection(&cmd, collection_id);
+	its_encode_target(&cmd, procnum_to_rdbase(vcpu_id));
+	its_encode_valid(&cmd, valid);
+
+	its_send_cmd(cmdq_base, &cmd);
+}
+
+void its_send_mapti_cmd(void *cmdq_base, u32 device_id, u32 event_id,
+			u32 collection_id, u32 intid)
+{
+	struct its_cmd_block cmd = {};
+
+	its_encode_cmd(&cmd, GITS_CMD_MAPTI);
+	its_encode_devid(&cmd, device_id);
+	its_encode_event_id(&cmd, event_id);
+	its_encode_phys_id(&cmd, intid);
+	its_encode_collection(&cmd, collection_id);
+
+	its_send_cmd(cmdq_base, &cmd);
+}
+
+void its_send_invall_cmd(void *cmdq_base, u32 collection_id)
+{
+	struct its_cmd_block cmd = {};
+
+	its_encode_cmd(&cmd, GITS_CMD_INVALL);
+	its_encode_collection(&cmd, collection_id);
+
+	its_send_cmd(cmdq_base, &cmd);
+}
+
+void its_send_sync_cmd(void *cmdq_base, u32 vcpu_id)
+{
+	struct its_cmd_block cmd = {};
+
+	its_encode_cmd(&cmd, GITS_CMD_SYNC);
+	its_encode_target(&cmd, procnum_to_rdbase(vcpu_id));
+
+	its_send_cmd(cmdq_base, &cmd);
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/handlers.S b/tools/testing/selftests/kvm/lib/arm64/handlers.S
new file mode 100644
index 000000000000..0e443eadfac6
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/handlers.S
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+.macro save_registers
+	add	sp, sp, #-16 * 17
+
+	stp	x0, x1, [sp, #16 * 0]
+	stp	x2, x3, [sp, #16 * 1]
+	stp	x4, x5, [sp, #16 * 2]
+	stp	x6, x7, [sp, #16 * 3]
+	stp	x8, x9, [sp, #16 * 4]
+	stp	x10, x11, [sp, #16 * 5]
+	stp	x12, x13, [sp, #16 * 6]
+	stp	x14, x15, [sp, #16 * 7]
+	stp	x16, x17, [sp, #16 * 8]
+	stp	x18, x19, [sp, #16 * 9]
+	stp	x20, x21, [sp, #16 * 10]
+	stp	x22, x23, [sp, #16 * 11]
+	stp	x24, x25, [sp, #16 * 12]
+	stp	x26, x27, [sp, #16 * 13]
+	stp	x28, x29, [sp, #16 * 14]
+
+	/*
+	 * This stores sp_el1 into ex_regs.sp so exception handlers can "look"
+	 * at it. It will _not_ be used to restore the sp on return from the
+	 * exception so handlers can not update it.
+	 */
+	add	x1, sp, #16 * 17
+	stp	x30, x1, [sp, #16 * 15] /* x30, SP */
+
+	mrs	x1, elr_el1
+	mrs	x2, spsr_el1
+	stp	x1, x2, [sp, #16 * 16] /* PC, PSTATE */
+.endm
+
+.macro restore_registers
+	ldp	x1, x2, [sp, #16 * 16] /* PC, PSTATE */
+	msr	elr_el1, x1
+	msr	spsr_el1, x2
+
+	/* sp is not restored */
+	ldp	x30, xzr, [sp, #16 * 15] /* x30, SP */
+
+	ldp	x28, x29, [sp, #16 * 14]
+	ldp	x26, x27, [sp, #16 * 13]
+	ldp	x24, x25, [sp, #16 * 12]
+	ldp	x22, x23, [sp, #16 * 11]
+	ldp	x20, x21, [sp, #16 * 10]
+	ldp	x18, x19, [sp, #16 * 9]
+	ldp	x16, x17, [sp, #16 * 8]
+	ldp	x14, x15, [sp, #16 * 7]
+	ldp	x12, x13, [sp, #16 * 6]
+	ldp	x10, x11, [sp, #16 * 5]
+	ldp	x8, x9, [sp, #16 * 4]
+	ldp	x6, x7, [sp, #16 * 3]
+	ldp	x4, x5, [sp, #16 * 2]
+	ldp	x2, x3, [sp, #16 * 1]
+	ldp	x0, x1, [sp, #16 * 0]
+
+	add	sp, sp, #16 * 17
+
+	eret
+.endm
+
+.pushsection ".entry.text", "ax"
+.balign 0x800
+.global vectors
+vectors:
+.popsection
+
+.set	vector, 0
+
+/*
+ * Build an exception handler for vector and append a jump to it into
+ * vectors (while making sure that it's 0x80 aligned).
+ */
+.macro HANDLER, label
+handler_\label:
+	save_registers
+	mov	x0, sp
+	mov	x1, #vector
+	bl	route_exception
+	restore_registers
+
+.pushsection ".entry.text", "ax"
+.balign 0x80
+	b	handler_\label
+.popsection
+
+.set	vector, vector + 1
+.endm
+
+.macro HANDLER_INVALID
+.pushsection ".entry.text", "ax"
+.balign 0x80
+/* This will abort so no need to save and restore registers. */
+	mov	x0, #vector
+	mov	x1, #0 /* ec */
+	mov	x2, #0 /* valid_ec */
+	b	kvm_exit_unexpected_exception
+.popsection
+
+.set	vector, vector + 1
+.endm
+
+/*
+ * Caution: be sure to not add anything between the declaration of vectors
+ * above and these macro calls that will build the vectors table below it.
+ */
+	HANDLER_INVALID                         // Synchronous EL1t
+	HANDLER_INVALID                         // IRQ EL1t
+	HANDLER_INVALID                         // FIQ EL1t
+	HANDLER_INVALID                         // Error EL1t
+
+	HANDLER	el1h_sync                       // Synchronous EL1h
+	HANDLER	el1h_irq                        // IRQ EL1h
+	HANDLER el1h_fiq                        // FIQ EL1h
+	HANDLER	el1h_error                      // Error EL1h
+
+	HANDLER	el0_sync_64                     // Synchronous 64-bit EL0
+	HANDLER	el0_irq_64                      // IRQ 64-bit EL0
+	HANDLER	el0_fiq_64                      // FIQ 64-bit EL0
+	HANDLER	el0_error_64                    // Error 64-bit EL0
+
+	HANDLER	el0_sync_32                     // Synchronous 32-bit EL0
+	HANDLER	el0_irq_32                      // IRQ 32-bit EL0
+	HANDLER	el0_fiq_32                      // FIQ 32-bit EL0
+	HANDLER	el0_error_32                    // Error 32-bit EL0
diff --git a/tools/testing/selftests/kvm/lib/arm64/processor.c b/tools/testing/selftests/kvm/lib/arm64/processor.c
new file mode 100644
index 000000000000..d46e4b13b92c
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/processor.c
@@ -0,0 +1,732 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AArch64 code
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+
+#include <linux/compiler.h>
+#include <assert.h>
+
+#include "guest_modes.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+#include "vgic.h"
+
+#include <linux/bitfield.h>
+#include <linux/sizes.h>
+
+#define DEFAULT_ARM64_GUEST_STACK_VADDR_MIN	0xac0000
+
+static vm_vaddr_t exception_handlers;
+
+static uint64_t page_align(struct kvm_vm *vm, uint64_t v)
+{
+	return (v + vm->page_size) & ~(vm->page_size - 1);
+}
+
+static uint64_t pgd_index(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift;
+	uint64_t mask = (1UL << (vm->va_bits - shift)) - 1;
+
+	return (gva >> shift) & mask;
+}
+
+static uint64_t pud_index(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	unsigned int shift = 2 * (vm->page_shift - 3) + vm->page_shift;
+	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;
+
+	TEST_ASSERT(vm->pgtable_levels == 4,
+		"Mode %d does not have 4 page table levels", vm->mode);
+
+	return (gva >> shift) & mask;
+}
+
+static uint64_t pmd_index(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	unsigned int shift = (vm->page_shift - 3) + vm->page_shift;
+	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;
+
+	TEST_ASSERT(vm->pgtable_levels >= 3,
+		"Mode %d does not have >= 3 page table levels", vm->mode);
+
+	return (gva >> shift) & mask;
+}
+
+static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	uint64_t mask = (1UL << (vm->page_shift - 3)) - 1;
+	return (gva >> vm->page_shift) & mask;
+}
+
+static inline bool use_lpa2_pte_format(struct kvm_vm *vm)
+{
+	return (vm->page_size == SZ_4K || vm->page_size == SZ_16K) &&
+	    (vm->pa_bits > 48 || vm->va_bits > 48);
+}
+
+static uint64_t addr_pte(struct kvm_vm *vm, uint64_t pa, uint64_t attrs)
+{
+	uint64_t pte;
+
+	if (use_lpa2_pte_format(vm)) {
+		pte = pa & PTE_ADDR_MASK_LPA2(vm->page_shift);
+		pte |= FIELD_GET(GENMASK(51, 50), pa) << PTE_ADDR_51_50_LPA2_SHIFT;
+		attrs &= ~PTE_ADDR_51_50_LPA2;
+	} else {
+		pte = pa & PTE_ADDR_MASK(vm->page_shift);
+		if (vm->page_shift == 16)
+			pte |= FIELD_GET(GENMASK(51, 48), pa) << PTE_ADDR_51_48_SHIFT;
+	}
+	pte |= attrs;
+
+	return pte;
+}
+
+static uint64_t pte_addr(struct kvm_vm *vm, uint64_t pte)
+{
+	uint64_t pa;
+
+	if (use_lpa2_pte_format(vm)) {
+		pa = pte & PTE_ADDR_MASK_LPA2(vm->page_shift);
+		pa |= FIELD_GET(PTE_ADDR_51_50_LPA2, pte) << 50;
+	} else {
+		pa = pte & PTE_ADDR_MASK(vm->page_shift);
+		if (vm->page_shift == 16)
+			pa |= FIELD_GET(PTE_ADDR_51_48, pte) << 48;
+	}
+
+	return pa;
+}
+
+static uint64_t ptrs_per_pgd(struct kvm_vm *vm)
+{
+	unsigned int shift = (vm->pgtable_levels - 1) * (vm->page_shift - 3) + vm->page_shift;
+	return 1 << (vm->va_bits - shift);
+}
+
+static uint64_t __maybe_unused ptrs_per_pte(struct kvm_vm *vm)
+{
+	return 1 << (vm->page_shift - 3);
+}
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
+{
+	size_t nr_pages = page_align(vm, ptrs_per_pgd(vm) * 8) / vm->page_size;
+
+	if (vm->pgd_created)
+		return;
+
+	vm->pgd = vm_phy_pages_alloc(vm, nr_pages,
+				     KVM_GUEST_PAGE_TABLE_MIN_PADDR,
+				     vm->memslots[MEM_REGION_PT]);
+	vm->pgd_created = true;
+}
+
+static void _virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
+			 uint64_t flags)
+{
+	uint8_t attr_idx = flags & (PTE_ATTRINDX_MASK >> PTE_ATTRINDX_SHIFT);
+	uint64_t pg_attr;
+	uint64_t *ptep;
+
+	TEST_ASSERT((vaddr % vm->page_size) == 0,
+		"Virtual address not on page boundary,\n"
+		"  vaddr: 0x%lx vm->page_size: 0x%x", vaddr, vm->page_size);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,
+		(vaddr >> vm->page_shift)),
+		"Invalid virtual address, vaddr: 0x%lx", vaddr);
+	TEST_ASSERT((paddr % vm->page_size) == 0,
+		"Physical address not on page boundary,\n"
+		"  paddr: 0x%lx vm->page_size: 0x%x", paddr, vm->page_size);
+	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,
+		"Physical address beyond beyond maximum supported,\n"
+		"  paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		paddr, vm->max_gfn, vm->page_size);
+
+	ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, vaddr) * 8;
+	if (!*ptep)
+		*ptep = addr_pte(vm, vm_alloc_page_table(vm),
+				 PGD_TYPE_TABLE | PTE_VALID);
+
+	switch (vm->pgtable_levels) {
+	case 4:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, vaddr) * 8;
+		if (!*ptep)
+			*ptep = addr_pte(vm, vm_alloc_page_table(vm),
+					 PUD_TYPE_TABLE | PTE_VALID);
+		/* fall through */
+	case 3:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, vaddr) * 8;
+		if (!*ptep)
+			*ptep = addr_pte(vm, vm_alloc_page_table(vm),
+					 PMD_TYPE_TABLE | PTE_VALID);
+		/* fall through */
+	case 2:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, vaddr) * 8;
+		break;
+	default:
+		TEST_FAIL("Page table levels must be 2, 3, or 4");
+	}
+
+	pg_attr = PTE_AF | PTE_ATTRINDX(attr_idx) | PTE_TYPE_PAGE | PTE_VALID;
+	if (!use_lpa2_pte_format(vm))
+		pg_attr |= PTE_SHARED;
+
+	*ptep = addr_pte(vm, paddr, pg_attr);
+}
+
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	uint64_t attr_idx = MT_NORMAL;
+
+	_virt_pg_map(vm, vaddr, paddr, attr_idx);
+}
+
+uint64_t *virt_get_pte_hva_at_level(struct kvm_vm *vm, vm_vaddr_t gva, int level)
+{
+	uint64_t *ptep;
+
+	if (!vm->pgd_created)
+		goto unmapped_gva;
+
+	ptep = addr_gpa2hva(vm, vm->pgd) + pgd_index(vm, gva) * 8;
+	if (!ptep)
+		goto unmapped_gva;
+	if (level == 0)
+		return ptep;
+
+	switch (vm->pgtable_levels) {
+	case 4:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pud_index(vm, gva) * 8;
+		if (!ptep)
+			goto unmapped_gva;
+		if (level == 1)
+			break;
+		/* fall through */
+	case 3:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pmd_index(vm, gva) * 8;
+		if (!ptep)
+			goto unmapped_gva;
+		if (level == 2)
+			break;
+		/* fall through */
+	case 2:
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) + pte_index(vm, gva) * 8;
+		if (!ptep)
+			goto unmapped_gva;
+		break;
+	default:
+		TEST_FAIL("Page table levels must be 2, 3, or 4");
+	}
+
+	return ptep;
+
+unmapped_gva:
+	TEST_FAIL("No mapping for vm virtual address, gva: 0x%lx", gva);
+	exit(EXIT_FAILURE);
+}
+
+uint64_t *virt_get_pte_hva(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	return virt_get_pte_hva_at_level(vm, gva, 3);
+}
+
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	uint64_t *ptep = virt_get_pte_hva(vm, gva);
+
+	return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1));
+}
+
+static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent, uint64_t page, int level)
+{
+#ifdef DEBUG
+	static const char * const type[] = { "", "pud", "pmd", "pte" };
+	uint64_t pte, *ptep;
+
+	if (level == 4)
+		return;
+
+	for (pte = page; pte < page + ptrs_per_pte(vm) * 8; pte += 8) {
+		ptep = addr_gpa2hva(vm, pte);
+		if (!*ptep)
+			continue;
+		fprintf(stream, "%*s%s: %lx: %lx at %p\n", indent, "", type[level], pte, *ptep, ptep);
+		pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level + 1);
+	}
+#endif
+}
+
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	int level = 4 - (vm->pgtable_levels - 1);
+	uint64_t pgd, *ptep;
+
+	if (!vm->pgd_created)
+		return;
+
+	for (pgd = vm->pgd; pgd < vm->pgd + ptrs_per_pgd(vm) * 8; pgd += 8) {
+		ptep = addr_gpa2hva(vm, pgd);
+		if (!*ptep)
+			continue;
+		fprintf(stream, "%*spgd: %lx: %lx at %p\n", indent, "", pgd, *ptep, ptep);
+		pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level);
+	}
+}
+
+bool vm_supports_el2(struct kvm_vm *vm)
+{
+	const char *value = getenv("NV");
+
+	if (value && *value == '0')
+		return false;
+
+	return vm_check_cap(vm, KVM_CAP_ARM_EL2) && vm->arch.has_gic;
+}
+
+void kvm_get_default_vcpu_target(struct kvm_vm *vm, struct kvm_vcpu_init *init)
+{
+	struct kvm_vcpu_init preferred = {};
+
+	vm_ioctl(vm, KVM_ARM_PREFERRED_TARGET, &preferred);
+	if (vm_supports_el2(vm))
+		preferred.features[0] |= BIT(KVM_ARM_VCPU_HAS_EL2);
+
+	*init = preferred;
+}
+
+void aarch64_vcpu_setup(struct kvm_vcpu *vcpu, struct kvm_vcpu_init *init)
+{
+	struct kvm_vcpu_init default_init = { .target = -1, };
+	struct kvm_vm *vm = vcpu->vm;
+	uint64_t sctlr_el1, tcr_el1, ttbr0_el1;
+
+	if (!init) {
+		kvm_get_default_vcpu_target(vm, &default_init);
+		init = &default_init;
+	}
+
+	vcpu_ioctl(vcpu, KVM_ARM_VCPU_INIT, init);
+	vcpu->init = *init;
+
+	/*
+	 * Enable FP/ASIMD to avoid trapping when accessing Q0-Q15
+	 * registers, which the variable argument list macros do.
+	 */
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_CPACR_EL1), 3 << 20);
+
+	sctlr_el1 = vcpu_get_reg(vcpu, ctxt_reg_alias(vcpu, SYS_SCTLR_EL1));
+	tcr_el1 = vcpu_get_reg(vcpu, ctxt_reg_alias(vcpu, SYS_TCR_EL1));
+
+	/* Configure base granule size */
+	switch (vm->mode) {
+	case VM_MODE_PXXVYY_4K:
+		TEST_FAIL("AArch64 does not support 4K sized pages "
+			  "with ANY-bit physical address ranges");
+	case VM_MODE_P52V48_64K:
+	case VM_MODE_P48V48_64K:
+	case VM_MODE_P40V48_64K:
+	case VM_MODE_P36V48_64K:
+		tcr_el1 |= TCR_TG0_64K;
+		break;
+	case VM_MODE_P52V48_16K:
+	case VM_MODE_P48V48_16K:
+	case VM_MODE_P40V48_16K:
+	case VM_MODE_P36V48_16K:
+	case VM_MODE_P36V47_16K:
+		tcr_el1 |= TCR_TG0_16K;
+		break;
+	case VM_MODE_P52V48_4K:
+	case VM_MODE_P48V48_4K:
+	case VM_MODE_P40V48_4K:
+	case VM_MODE_P36V48_4K:
+		tcr_el1 |= TCR_TG0_4K;
+		break;
+	default:
+		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);
+	}
+
+	ttbr0_el1 = vm->pgd & GENMASK(47, vm->page_shift);
+
+	/* Configure output size */
+	switch (vm->mode) {
+	case VM_MODE_P52V48_4K:
+	case VM_MODE_P52V48_16K:
+	case VM_MODE_P52V48_64K:
+		tcr_el1 |= TCR_IPS_52_BITS;
+		ttbr0_el1 |= FIELD_GET(GENMASK(51, 48), vm->pgd) << 2;
+		break;
+	case VM_MODE_P48V48_4K:
+	case VM_MODE_P48V48_16K:
+	case VM_MODE_P48V48_64K:
+		tcr_el1 |= TCR_IPS_48_BITS;
+		break;
+	case VM_MODE_P40V48_4K:
+	case VM_MODE_P40V48_16K:
+	case VM_MODE_P40V48_64K:
+		tcr_el1 |= TCR_IPS_40_BITS;
+		break;
+	case VM_MODE_P36V48_4K:
+	case VM_MODE_P36V48_16K:
+	case VM_MODE_P36V48_64K:
+	case VM_MODE_P36V47_16K:
+		tcr_el1 |= TCR_IPS_36_BITS;
+		break;
+	default:
+		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);
+	}
+
+	sctlr_el1 |= SCTLR_ELx_M | SCTLR_ELx_C | SCTLR_ELx_I;
+
+	tcr_el1 |= TCR_IRGN0_WBWA | TCR_ORGN0_WBWA | TCR_SH0_INNER;
+	tcr_el1 |= TCR_T0SZ(vm->va_bits);
+	if (use_lpa2_pte_format(vm))
+		tcr_el1 |= TCR_DS;
+
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_SCTLR_EL1), sctlr_el1);
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_TCR_EL1), tcr_el1);
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_MAIR_EL1), DEFAULT_MAIR_EL1);
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_TTBR0_EL1), ttbr0_el1);
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_TPIDR_EL1), vcpu->id);
+
+	if (!vcpu_has_el2(vcpu))
+		return;
+
+	vcpu_set_reg(vcpu, KVM_ARM64_SYS_REG(SYS_HCR_EL2),
+		     HCR_EL2_RW | HCR_EL2_TGE | HCR_EL2_E2H);
+}
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
+{
+	uint64_t pstate, pc;
+
+	pstate = vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pstate));
+	pc = vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc));
+
+	fprintf(stream, "%*spstate: 0x%.16lx pc: 0x%.16lx\n",
+		indent, "", pstate, pc);
+}
+
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code)
+{
+	vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.pc), (uint64_t)guest_code);
+}
+
+static struct kvm_vcpu *__aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,
+					   struct kvm_vcpu_init *init)
+{
+	size_t stack_size;
+	uint64_t stack_vaddr;
+	struct kvm_vcpu *vcpu = __vm_vcpu_add(vm, vcpu_id);
+
+	stack_size = vm->page_size == 4096 ? DEFAULT_STACK_PGS * vm->page_size :
+					     vm->page_size;
+	stack_vaddr = __vm_vaddr_alloc(vm, stack_size,
+				       DEFAULT_ARM64_GUEST_STACK_VADDR_MIN,
+				       MEM_REGION_DATA);
+
+	aarch64_vcpu_setup(vcpu, init);
+
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_SP_EL1), stack_vaddr + stack_size);
+	return vcpu;
+}
+
+struct kvm_vcpu *aarch64_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id,
+				  struct kvm_vcpu_init *init, void *guest_code)
+{
+	struct kvm_vcpu *vcpu = __aarch64_vcpu_add(vm, vcpu_id, init);
+
+	vcpu_arch_set_entry_point(vcpu, guest_code);
+
+	return vcpu;
+}
+
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	return __aarch64_vcpu_add(vm, vcpu_id, NULL);
+}
+
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
+{
+	va_list ap;
+	int i;
+
+	TEST_ASSERT(num >= 1 && num <= 8, "Unsupported number of args,\n"
+		    "  num: %u", num);
+
+	va_start(ap, num);
+
+	for (i = 0; i < num; i++) {
+		vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.regs[i]),
+			     va_arg(ap, uint64_t));
+	}
+
+	va_end(ap);
+}
+
+void kvm_exit_unexpected_exception(int vector, uint64_t ec, bool valid_ec)
+{
+	ucall(UCALL_UNHANDLED, 3, vector, ec, valid_ec);
+	while (1)
+		;
+}
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) != UCALL_UNHANDLED)
+		return;
+
+	if (uc.args[2]) /* valid_ec */ {
+		assert(VECTOR_IS_SYNC(uc.args[0]));
+		TEST_FAIL("Unexpected exception (vector:0x%lx, ec:0x%lx)",
+			  uc.args[0], uc.args[1]);
+	} else {
+		assert(!VECTOR_IS_SYNC(uc.args[0]));
+		TEST_FAIL("Unexpected exception (vector:0x%lx)",
+			  uc.args[0]);
+	}
+}
+
+struct handlers {
+	handler_fn exception_handlers[VECTOR_NUM][ESR_ELx_EC_MAX + 1];
+};
+
+void vcpu_init_descriptor_tables(struct kvm_vcpu *vcpu)
+{
+	extern char vectors;
+
+	vcpu_set_reg(vcpu, ctxt_reg_alias(vcpu, SYS_VBAR_EL1), (uint64_t)&vectors);
+}
+
+void route_exception(struct ex_regs *regs, int vector)
+{
+	struct handlers *handlers = (struct handlers *)exception_handlers;
+	bool valid_ec;
+	int ec = 0;
+
+	switch (vector) {
+	case VECTOR_SYNC_CURRENT:
+	case VECTOR_SYNC_LOWER_64:
+		ec = ESR_ELx_EC(read_sysreg(esr_el1));
+		valid_ec = true;
+		break;
+	case VECTOR_IRQ_CURRENT:
+	case VECTOR_IRQ_LOWER_64:
+	case VECTOR_FIQ_CURRENT:
+	case VECTOR_FIQ_LOWER_64:
+	case VECTOR_ERROR_CURRENT:
+	case VECTOR_ERROR_LOWER_64:
+		ec = 0;
+		valid_ec = false;
+		break;
+	default:
+		valid_ec = false;
+		goto unexpected_exception;
+	}
+
+	if (handlers && handlers->exception_handlers[vector][ec])
+		return handlers->exception_handlers[vector][ec](regs);
+
+unexpected_exception:
+	kvm_exit_unexpected_exception(vector, ec, valid_ec);
+}
+
+void vm_init_descriptor_tables(struct kvm_vm *vm)
+{
+	vm->handlers = __vm_vaddr_alloc(vm, sizeof(struct handlers),
+					vm->page_size, MEM_REGION_DATA);
+
+	*(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers;
+}
+
+void vm_install_sync_handler(struct kvm_vm *vm, int vector, int ec,
+			 void (*handler)(struct ex_regs *))
+{
+	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);
+
+	assert(VECTOR_IS_SYNC(vector));
+	assert(vector < VECTOR_NUM);
+	assert(ec <= ESR_ELx_EC_MAX);
+	handlers->exception_handlers[vector][ec] = handler;
+}
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector,
+			 void (*handler)(struct ex_regs *))
+{
+	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);
+
+	assert(!VECTOR_IS_SYNC(vector));
+	assert(vector < VECTOR_NUM);
+	handlers->exception_handlers[vector][0] = handler;
+}
+
+uint32_t guest_get_vcpuid(void)
+{
+	return read_sysreg(tpidr_el1);
+}
+
+static uint32_t max_ipa_for_page_size(uint32_t vm_ipa, uint32_t gran,
+				uint32_t not_sup_val, uint32_t ipa52_min_val)
+{
+	if (gran == not_sup_val)
+		return 0;
+	else if (gran >= ipa52_min_val && vm_ipa >= 52)
+		return 52;
+	else
+		return min(vm_ipa, 48U);
+}
+
+void aarch64_get_supported_page_sizes(uint32_t ipa, uint32_t *ipa4k,
+					uint32_t *ipa16k, uint32_t *ipa64k)
+{
+	struct kvm_vcpu_init preferred_init;
+	int kvm_fd, vm_fd, vcpu_fd, err;
+	uint64_t val;
+	uint32_t gran;
+	struct kvm_one_reg reg = {
+		.id	= KVM_ARM64_SYS_REG(SYS_ID_AA64MMFR0_EL1),
+		.addr	= (uint64_t)&val,
+	};
+
+	kvm_fd = open_kvm_dev_path_or_exit();
+	vm_fd = __kvm_ioctl(kvm_fd, KVM_CREATE_VM, (void *)(unsigned long)ipa);
+	TEST_ASSERT(vm_fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VM, vm_fd));
+
+	vcpu_fd = ioctl(vm_fd, KVM_CREATE_VCPU, 0);
+	TEST_ASSERT(vcpu_fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VCPU, vcpu_fd));
+
+	err = ioctl(vm_fd, KVM_ARM_PREFERRED_TARGET, &preferred_init);
+	TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_ARM_PREFERRED_TARGET, err));
+	err = ioctl(vcpu_fd, KVM_ARM_VCPU_INIT, &preferred_init);
+	TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_ARM_VCPU_INIT, err));
+
+	err = ioctl(vcpu_fd, KVM_GET_ONE_REG, &reg);
+	TEST_ASSERT(err == 0, KVM_IOCTL_ERROR(KVM_GET_ONE_REG, vcpu_fd));
+
+	gran = FIELD_GET(ID_AA64MMFR0_EL1_TGRAN4, val);
+	*ipa4k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN4_NI,
+					ID_AA64MMFR0_EL1_TGRAN4_52_BIT);
+
+	gran = FIELD_GET(ID_AA64MMFR0_EL1_TGRAN64, val);
+	*ipa64k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN64_NI,
+					ID_AA64MMFR0_EL1_TGRAN64_IMP);
+
+	gran = FIELD_GET(ID_AA64MMFR0_EL1_TGRAN16, val);
+	*ipa16k = max_ipa_for_page_size(ipa, gran, ID_AA64MMFR0_EL1_TGRAN16_NI,
+					ID_AA64MMFR0_EL1_TGRAN16_52_BIT);
+
+	close(vcpu_fd);
+	close(vm_fd);
+	close(kvm_fd);
+}
+
+#define __smccc_call(insn, function_id, arg0, arg1, arg2, arg3, arg4, arg5,	\
+		     arg6, res)							\
+	asm volatile("mov   w0, %w[function_id]\n"				\
+		     "mov   x1, %[arg0]\n"					\
+		     "mov   x2, %[arg1]\n"					\
+		     "mov   x3, %[arg2]\n"					\
+		     "mov   x4, %[arg3]\n"					\
+		     "mov   x5, %[arg4]\n"					\
+		     "mov   x6, %[arg5]\n"					\
+		     "mov   x7, %[arg6]\n"					\
+		     #insn  "#0\n"						\
+		     "mov   %[res0], x0\n"					\
+		     "mov   %[res1], x1\n"					\
+		     "mov   %[res2], x2\n"					\
+		     "mov   %[res3], x3\n"					\
+		     : [res0] "=r"(res->a0), [res1] "=r"(res->a1),		\
+		       [res2] "=r"(res->a2), [res3] "=r"(res->a3)		\
+		     : [function_id] "r"(function_id), [arg0] "r"(arg0),	\
+		       [arg1] "r"(arg1), [arg2] "r"(arg2), [arg3] "r"(arg3),	\
+		       [arg4] "r"(arg4), [arg5] "r"(arg5), [arg6] "r"(arg6)	\
+		     : "x0", "x1", "x2", "x3", "x4", "x5", "x6", "x7")
+
+
+void smccc_hvc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res)
+{
+	__smccc_call(hvc, function_id, arg0, arg1, arg2, arg3, arg4, arg5,
+		     arg6, res);
+}
+
+void smccc_smc(uint32_t function_id, uint64_t arg0, uint64_t arg1,
+	       uint64_t arg2, uint64_t arg3, uint64_t arg4, uint64_t arg5,
+	       uint64_t arg6, struct arm_smccc_res *res)
+{
+	__smccc_call(smc, function_id, arg0, arg1, arg2, arg3, arg4, arg5,
+		     arg6, res);
+}
+
+void kvm_selftest_arch_init(void)
+{
+	/*
+	 * arm64 doesn't have a true default mode, so start by computing the
+	 * available IPA space and page sizes early.
+	 */
+	guest_modes_append_default();
+}
+
+void vm_vaddr_populate_bitmap(struct kvm_vm *vm)
+{
+	/*
+	 * arm64 selftests use only TTBR0_EL1, meaning that the valid VA space
+	 * is [0, 2^(64 - TCR_EL1.T0SZ)).
+	 */
+	sparsebit_set_num(vm->vpages_valid, 0,
+			  (1ULL << vm->va_bits) >> vm->page_shift);
+}
+
+/* Helper to call wfi instruction. */
+void wfi(void)
+{
+	asm volatile("wfi");
+}
+
+static bool request_mte;
+static bool request_vgic = true;
+
+void test_wants_mte(void)
+{
+	request_mte = true;
+}
+
+void test_disable_default_vgic(void)
+{
+	request_vgic = false;
+}
+
+void kvm_arch_vm_post_create(struct kvm_vm *vm, unsigned int nr_vcpus)
+{
+	if (request_mte && vm_check_cap(vm, KVM_CAP_ARM_MTE))
+		vm_enable_cap(vm, KVM_CAP_ARM_MTE, 0);
+
+	if (request_vgic && kvm_supports_vgic_v3()) {
+		vm->arch.gic_fd = __vgic_v3_setup(vm, nr_vcpus, 64);
+		vm->arch.has_gic = true;
+	}
+}
+
+void kvm_arch_vm_finalize_vcpus(struct kvm_vm *vm)
+{
+	if (vm->arch.has_gic)
+		__vgic_v3_init(vm->arch.gic_fd);
+}
+
+void kvm_arch_vm_release(struct kvm_vm *vm)
+{
+	if (vm->arch.has_gic)
+		close(vm->arch.gic_fd);
+}
+
+bool kvm_arch_has_default_irqchip(void)
+{
+	return request_vgic && kvm_supports_vgic_v3();
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/spinlock.c b/tools/testing/selftests/kvm/lib/arm64/spinlock.c
new file mode 100644
index 000000000000..a076e780be5d
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/spinlock.c
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM64 Spinlock support
+ */
+#include <stdint.h>
+
+#include "spinlock.h"
+
+void spin_lock(struct spinlock *lock)
+{
+	int val, res;
+
+	asm volatile(
+	"1:	ldaxr	%w0, [%2]\n"
+	"	cbnz	%w0, 1b\n"
+	"	mov	%w0, #1\n"
+	"	stxr	%w1, %w0, [%2]\n"
+	"	cbnz	%w1, 1b\n"
+	: "=&r" (val), "=&r" (res)
+	: "r" (&lock->v)
+	: "memory");
+}
+
+void spin_unlock(struct spinlock *lock)
+{
+	asm volatile("stlr wzr, [%0]\n"	: : "r" (&lock->v) : "memory");
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/ucall.c b/tools/testing/selftests/kvm/lib/arm64/ucall.c
new file mode 100644
index 000000000000..ddab0ce89d4d
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/ucall.c
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucall support. A ucall is a "hypercall to userspace".
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+#include "kvm_util.h"
+
+vm_vaddr_t *ucall_exit_mmio_addr;
+
+void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+	vm_vaddr_t mmio_gva = vm_vaddr_unused_gap(vm, vm->page_size, KVM_UTIL_MIN_VADDR);
+
+	virt_map(vm, mmio_gva, mmio_gpa, 1);
+
+	vm->ucall_mmio_addr = mmio_gpa;
+
+	write_guest_global(vm, ucall_exit_mmio_addr, (vm_vaddr_t *)mmio_gva);
+}
+
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	if (run->exit_reason == KVM_EXIT_MMIO &&
+	    run->mmio.phys_addr == vcpu->vm->ucall_mmio_addr) {
+		TEST_ASSERT(run->mmio.is_write && run->mmio.len == sizeof(uint64_t),
+			    "Unexpected ucall exit mmio address access");
+		return (void *)(*((uint64_t *)run->mmio.data));
+	}
+
+	return NULL;
+}
diff --git a/tools/testing/selftests/kvm/lib/arm64/vgic.c b/tools/testing/selftests/kvm/lib/arm64/vgic.c
new file mode 100644
index 000000000000..d0f7bd0984b8
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/arm64/vgic.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ARM Generic Interrupt Controller (GIC) v3 host support
+ */
+
+#include <linux/kernel.h>
+#include <linux/kvm.h>
+#include <linux/sizes.h>
+#include <asm/cputype.h>
+#include <asm/kvm_para.h>
+#include <asm/kvm.h>
+
+#include "kvm_util.h"
+#include "vgic.h"
+#include "gic.h"
+#include "gic_v3.h"
+
+bool kvm_supports_vgic_v3(void)
+{
+	struct kvm_vm *vm = vm_create_barebones();
+	int r;
+
+	r = __kvm_test_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3);
+	kvm_vm_free(vm);
+
+	return !r;
+}
+
+/*
+ * vGIC-v3 default host setup
+ *
+ * Input args:
+ *	vm - KVM VM
+ *	nr_vcpus - Number of vCPUs supported by this VM
+ *
+ * Output args: None
+ *
+ * Return: GIC file-descriptor or negative error code upon failure
+ *
+ * The function creates a vGIC-v3 device and maps the distributor and
+ * redistributor regions of the guest. Since it depends on the number of
+ * vCPUs for the VM, it must be called after all the vCPUs have been created.
+ */
+int __vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs)
+{
+	int gic_fd;
+	uint64_t attr;
+	unsigned int nr_gic_pages;
+
+	/* Distributor setup */
+	gic_fd = __kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_V3);
+	if (gic_fd < 0)
+		return gic_fd;
+
+	kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_NR_IRQS, 0, &nr_irqs);
+
+	attr = GICD_BASE_GPA;
+	kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_DIST, &attr);
+	nr_gic_pages = vm_calc_num_guest_pages(vm->mode, KVM_VGIC_V3_DIST_SIZE);
+	virt_map(vm, GICD_BASE_GPA, GICD_BASE_GPA, nr_gic_pages);
+
+	/* Redistributor setup */
+	attr = REDIST_REGION_ATTR_ADDR(nr_vcpus, GICR_BASE_GPA, 0, 0);
+	kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION, &attr);
+	nr_gic_pages = vm_calc_num_guest_pages(vm->mode,
+						KVM_VGIC_V3_REDIST_SIZE * nr_vcpus);
+	virt_map(vm, GICR_BASE_GPA, GICR_BASE_GPA, nr_gic_pages);
+
+	return gic_fd;
+}
+
+void __vgic_v3_init(int fd)
+{
+	kvm_device_attr_set(fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+}
+
+int vgic_v3_setup(struct kvm_vm *vm, unsigned int nr_vcpus, uint32_t nr_irqs)
+{
+	unsigned int nr_vcpus_created = 0;
+	struct list_head *iter;
+	int fd;
+
+	TEST_ASSERT(nr_vcpus, "Number of vCPUs cannot be empty");
+
+	/*
+	 * Make sure that the caller is infact calling this
+	 * function after all the vCPUs are added.
+	 */
+	list_for_each(iter, &vm->vcpus)
+		nr_vcpus_created++;
+	TEST_ASSERT(nr_vcpus == nr_vcpus_created,
+		    "Number of vCPUs requested (%u) doesn't match with the ones created for the VM (%u)",
+		    nr_vcpus, nr_vcpus_created);
+
+	fd = __vgic_v3_setup(vm, nr_vcpus, nr_irqs);
+	if (fd < 0)
+		return fd;
+
+	__vgic_v3_init(fd);
+	return fd;
+}
+
+/* should only work for level sensitive interrupts */
+int _kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level)
+{
+	uint64_t attr = 32 * (intid / 32);
+	uint64_t index = intid % 32;
+	uint64_t val;
+	int ret;
+
+	ret = __kvm_device_attr_get(gic_fd, KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO,
+				    attr, &val);
+	if (ret != 0)
+		return ret;
+
+	val |= 1U << index;
+	ret = __kvm_device_attr_set(gic_fd, KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO,
+				    attr, &val);
+	return ret;
+}
+
+void kvm_irq_set_level_info(int gic_fd, uint32_t intid, int level)
+{
+	int ret = _kvm_irq_set_level_info(gic_fd, intid, level);
+
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_DEV_ARM_VGIC_GRP_LEVEL_INFO, ret));
+}
+
+int _kvm_arm_irq_line(struct kvm_vm *vm, uint32_t intid, int level)
+{
+	uint32_t irq = intid & KVM_ARM_IRQ_NUM_MASK;
+
+	TEST_ASSERT(!INTID_IS_SGI(intid), "KVM_IRQ_LINE's interface itself "
+		"doesn't allow injecting SGIs. There's no mask for it.");
+
+	if (INTID_IS_PPI(intid))
+		irq |= KVM_ARM_IRQ_TYPE_PPI << KVM_ARM_IRQ_TYPE_SHIFT;
+	else
+		irq |= KVM_ARM_IRQ_TYPE_SPI << KVM_ARM_IRQ_TYPE_SHIFT;
+
+	return _kvm_irq_line(vm, irq, level);
+}
+
+void kvm_arm_irq_line(struct kvm_vm *vm, uint32_t intid, int level)
+{
+	int ret = _kvm_arm_irq_line(vm, intid, level);
+
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_IRQ_LINE, ret));
+}
+
+static void vgic_poke_irq(int gic_fd, uint32_t intid, struct kvm_vcpu *vcpu,
+			  uint64_t reg_off)
+{
+	uint64_t reg = intid / 32;
+	uint64_t index = intid % 32;
+	uint64_t attr = reg_off + reg * 4;
+	uint64_t val;
+	bool intid_is_private = INTID_IS_SGI(intid) || INTID_IS_PPI(intid);
+
+	uint32_t group = intid_is_private ? KVM_DEV_ARM_VGIC_GRP_REDIST_REGS
+					  : KVM_DEV_ARM_VGIC_GRP_DIST_REGS;
+
+	if (intid_is_private) {
+		/* TODO: only vcpu 0 implemented for now. */
+		assert(vcpu->id == 0);
+		attr += SZ_64K;
+	}
+
+	/* Check that the addr part of the attr is within 32 bits. */
+	assert((attr & ~KVM_DEV_ARM_VGIC_OFFSET_MASK) == 0);
+
+	/*
+	 * All calls will succeed, even with invalid intid's, as long as the
+	 * addr part of the attr is within 32 bits (checked above). An invalid
+	 * intid will just make the read/writes point to above the intended
+	 * register space (i.e., ICPENDR after ISPENDR).
+	 */
+	kvm_device_attr_get(gic_fd, group, attr, &val);
+	val |= 1ULL << index;
+	kvm_device_attr_set(gic_fd, group, attr, &val);
+}
+
+void kvm_irq_write_ispendr(int gic_fd, uint32_t intid, struct kvm_vcpu *vcpu)
+{
+	vgic_poke_irq(gic_fd, intid, vcpu, GICD_ISPENDR);
+}
+
+void kvm_irq_write_isactiver(int gic_fd, uint32_t intid, struct kvm_vcpu *vcpu)
+{
+	vgic_poke_irq(gic_fd, intid, vcpu, GICD_ISACTIVER);
+}
+
+int vgic_its_setup(struct kvm_vm *vm)
+{
+	int its_fd = kvm_create_device(vm, KVM_DEV_TYPE_ARM_VGIC_ITS);
+	u64 attr;
+
+	attr = GITS_BASE_GPA;
+	kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
+			    KVM_VGIC_ITS_ADDR_TYPE, &attr);
+
+	kvm_device_attr_set(its_fd, KVM_DEV_ARM_VGIC_GRP_CTRL,
+			    KVM_DEV_ARM_VGIC_CTRL_INIT, NULL);
+
+	virt_map(vm, GITS_BASE_GPA, GITS_BASE_GPA,
+		 vm_calc_num_guest_pages(vm->mode, KVM_VGIC_V3_ITS_SIZE));
+
+	return its_fd;
+}
diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c
new file mode 100644
index 000000000000..b49690658c60
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/assert.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tools/testing/selftests/kvm/lib/assert.c
+ *
+ * Copyright (C) 2018, Google LLC.
+ */
+#include "test_util.h"
+
+#include <execinfo.h>
+#include <sys/syscall.h>
+
+#include "kselftest.h"
+
+/* Dumps the current stack trace to stderr. */
+static void __attribute__((noinline)) test_dump_stack(void);
+static void test_dump_stack(void)
+{
+	/*
+	 * Build and run this command:
+	 *
+	 *	addr2line -s -e /proc/$PPID/exe -fpai {backtrace addresses} | \
+	 *		cat -n 1>&2
+	 *
+	 * Note that the spacing is different and there's no newline.
+	 */
+	size_t i;
+	size_t n = 20;
+	void *stack[n];
+	const char *addr2line = "addr2line -s -e /proc/$PPID/exe -fpai";
+	const char *pipeline = "|cat -n 1>&2";
+	char cmd[strlen(addr2line) + strlen(pipeline) +
+		 /* N bytes per addr * 2 digits per byte + 1 space per addr: */
+		 n * (((sizeof(void *)) * 2) + 1) +
+		 /* Null terminator: */
+		 1];
+	char *c = cmd;
+
+	n = backtrace(stack, n);
+	/*
+	 * Skip the first 2 frames, which should be test_dump_stack() and
+	 * test_assert(); both of which are declared noinline.  Bail if the
+	 * resulting stack trace would be empty. Otherwise, addr2line will block
+	 * waiting for addresses to be passed in via stdin.
+	 */
+	if (n <= 2) {
+		fputs("  (stack trace empty)\n", stderr);
+		return;
+	}
+
+	c += sprintf(c, "%s", addr2line);
+	for (i = 2; i < n; i++)
+		c += sprintf(c, " %lx", ((unsigned long) stack[i]) - 1);
+
+	c += sprintf(c, "%s", pipeline);
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+	system(cmd);
+#pragma GCC diagnostic pop
+}
+
+static pid_t _gettid(void)
+{
+	return syscall(SYS_gettid);
+}
+
+void __attribute__((noinline))
+test_assert(bool exp, const char *exp_str,
+	const char *file, unsigned int line, const char *fmt, ...)
+{
+	va_list ap;
+
+	if (!(exp)) {
+		va_start(ap, fmt);
+
+		fprintf(stderr, "==== Test Assertion Failure ====\n"
+			"  %s:%u: %s\n"
+			"  pid=%d tid=%d errno=%d - %s\n",
+			file, line, exp_str, getpid(), _gettid(),
+			errno, strerror(errno));
+		test_dump_stack();
+		if (fmt) {
+			fputs("  ", stderr);
+			vfprintf(stderr, fmt, ap);
+			fputs("\n", stderr);
+		}
+		va_end(ap);
+
+		if (errno == EACCES) {
+			print_skip("Access denied - Exiting");
+			exit(KSFT_SKIP);
+		}
+		exit(254);
+	}
+
+	return;
+}
diff --git a/tools/testing/selftests/kvm/lib/elf.c b/tools/testing/selftests/kvm/lib/elf.c
new file mode 100644
index 000000000000..f34d926d9735
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/elf.c
@@ -0,0 +1,195 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tools/testing/selftests/kvm/lib/elf.c
+ *
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#include "test_util.h"
+
+#include <bits/endian.h>
+#include <linux/elf.h>
+
+#include "kvm_util.h"
+
+static void elfhdr_get(const char *filename, Elf64_Ehdr *hdrp)
+{
+	off_t offset_rv;
+
+	/* Open the ELF file. */
+	int fd;
+	fd = open(filename, O_RDONLY);
+	TEST_ASSERT(fd >= 0, "Failed to open ELF file,\n"
+		"  filename: %s\n"
+		"  rv: %i errno: %i", filename, fd, errno);
+
+	/* Read in and validate ELF Identification Record.
+	 * The ELF Identification record is the first 16 (EI_NIDENT) bytes
+	 * of the ELF header, which is at the beginning of the ELF file.
+	 * For now it is only safe to read the first EI_NIDENT bytes.  Once
+	 * read and validated, the value of e_ehsize can be used to determine
+	 * the real size of the ELF header.
+	 */
+	unsigned char ident[EI_NIDENT];
+	test_read(fd, ident, sizeof(ident));
+	TEST_ASSERT((ident[EI_MAG0] == ELFMAG0) && (ident[EI_MAG1] == ELFMAG1)
+		&& (ident[EI_MAG2] == ELFMAG2) && (ident[EI_MAG3] == ELFMAG3),
+		"ELF MAGIC Mismatch,\n"
+		"  filename: %s\n"
+		"  ident[EI_MAG0 - EI_MAG3]: %02x %02x %02x %02x\n"
+		"  Expected: %02x %02x %02x %02x",
+		filename,
+		ident[EI_MAG0], ident[EI_MAG1], ident[EI_MAG2], ident[EI_MAG3],
+		ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3);
+	TEST_ASSERT(ident[EI_CLASS] == ELFCLASS64,
+		"Current implementation only able to handle ELFCLASS64,\n"
+		"  filename: %s\n"
+		"  ident[EI_CLASS]: %02x\n"
+		"  expected: %02x",
+		filename,
+		ident[EI_CLASS], ELFCLASS64);
+	TEST_ASSERT(((BYTE_ORDER == LITTLE_ENDIAN)
+			&& (ident[EI_DATA] == ELFDATA2LSB))
+		|| ((BYTE_ORDER == BIG_ENDIAN)
+			&& (ident[EI_DATA] == ELFDATA2MSB)), "Current "
+		"implementation only able to handle\n"
+		"cases where the host and ELF file endianness\n"
+		"is the same:\n"
+		"  host BYTE_ORDER: %u\n"
+		"  host LITTLE_ENDIAN: %u\n"
+		"  host BIG_ENDIAN: %u\n"
+		"  ident[EI_DATA]: %u\n"
+		"  ELFDATA2LSB: %u\n"
+		"  ELFDATA2MSB: %u",
+		BYTE_ORDER, LITTLE_ENDIAN, BIG_ENDIAN,
+		ident[EI_DATA], ELFDATA2LSB, ELFDATA2MSB);
+	TEST_ASSERT(ident[EI_VERSION] == EV_CURRENT,
+		"Current implementation only able to handle current "
+		"ELF version,\n"
+		"  filename: %s\n"
+		"  ident[EI_VERSION]: %02x\n"
+		"  expected: %02x",
+		filename, ident[EI_VERSION], EV_CURRENT);
+
+	/* Read in the ELF header.
+	 * With the ELF Identification portion of the ELF header
+	 * validated, especially that the value at EI_VERSION is
+	 * as expected, it is now safe to read the entire ELF header.
+	 */
+	offset_rv = lseek(fd, 0, SEEK_SET);
+	TEST_ASSERT(offset_rv == 0, "Seek to ELF header failed,\n"
+		"  rv: %zi expected: %i", offset_rv, 0);
+	test_read(fd, hdrp, sizeof(*hdrp));
+	TEST_ASSERT(hdrp->e_phentsize == sizeof(Elf64_Phdr),
+		"Unexpected physical header size,\n"
+		"  hdrp->e_phentsize: %x\n"
+		"  expected: %zx",
+		hdrp->e_phentsize, sizeof(Elf64_Phdr));
+	TEST_ASSERT(hdrp->e_shentsize == sizeof(Elf64_Shdr),
+		"Unexpected section header size,\n"
+		"  hdrp->e_shentsize: %x\n"
+		"  expected: %zx",
+		hdrp->e_shentsize, sizeof(Elf64_Shdr));
+	close(fd);
+}
+
+/* VM ELF Load
+ *
+ * Input Args:
+ *   filename - Path to ELF file
+ *
+ * Output Args: None
+ *
+ * Input/Output Args:
+ *   vm - Pointer to opaque type that describes the VM.
+ *
+ * Return: None, TEST_ASSERT failures for all error conditions
+ *
+ * Loads the program image of the ELF file specified by filename,
+ * into the virtual address space of the VM pointed to by vm.  On entry
+ * the VM needs to not be using any of the virtual address space used
+ * by the image and it needs to have sufficient available physical pages, to
+ * back the virtual pages used to load the image.
+ */
+void kvm_vm_elf_load(struct kvm_vm *vm, const char *filename)
+{
+	off_t offset, offset_rv;
+	Elf64_Ehdr hdr;
+
+	/* Open the ELF file. */
+	int fd;
+	fd = open(filename, O_RDONLY);
+	TEST_ASSERT(fd >= 0, "Failed to open ELF file,\n"
+		"  filename: %s\n"
+		"  rv: %i errno: %i", filename, fd, errno);
+
+	/* Read in the ELF header. */
+	elfhdr_get(filename, &hdr);
+
+	/* For each program header.
+	 * The following ELF header members specify the location
+	 * and size of the program headers:
+	 *
+	 *   e_phoff - File offset to start of program headers
+	 *   e_phentsize - Size of each program header
+	 *   e_phnum - Number of program header entries
+	 */
+	for (unsigned int n1 = 0; n1 < hdr.e_phnum; n1++) {
+		/* Seek to the beginning of the program header. */
+		offset = hdr.e_phoff + (n1 * hdr.e_phentsize);
+		offset_rv = lseek(fd, offset, SEEK_SET);
+		TEST_ASSERT(offset_rv == offset,
+			"Failed to seek to beginning of program header %u,\n"
+			"  filename: %s\n"
+			"  rv: %jd errno: %i",
+			n1, filename, (intmax_t) offset_rv, errno);
+
+		/* Read in the program header. */
+		Elf64_Phdr phdr;
+		test_read(fd, &phdr, sizeof(phdr));
+
+		/* Skip if this header doesn't describe a loadable segment. */
+		if (phdr.p_type != PT_LOAD)
+			continue;
+
+		/* Allocate memory for this segment within the VM. */
+		TEST_ASSERT(phdr.p_memsz > 0, "Unexpected loadable segment "
+			"memsize of 0,\n"
+			"  phdr index: %u p_memsz: 0x%" PRIx64,
+			n1, (uint64_t) phdr.p_memsz);
+		vm_vaddr_t seg_vstart = align_down(phdr.p_vaddr, vm->page_size);
+		vm_vaddr_t seg_vend = phdr.p_vaddr + phdr.p_memsz - 1;
+		seg_vend |= vm->page_size - 1;
+		size_t seg_size = seg_vend - seg_vstart + 1;
+
+		vm_vaddr_t vaddr = __vm_vaddr_alloc(vm, seg_size, seg_vstart,
+						    MEM_REGION_CODE);
+		TEST_ASSERT(vaddr == seg_vstart, "Unable to allocate "
+			"virtual memory for segment at requested min addr,\n"
+			"  segment idx: %u\n"
+			"  seg_vstart: 0x%lx\n"
+			"  vaddr: 0x%lx",
+			n1, seg_vstart, vaddr);
+		memset(addr_gva2hva(vm, vaddr), 0, seg_size);
+		/* TODO(lhuemill): Set permissions of each memory segment
+		 * based on the least-significant 3 bits of phdr.p_flags.
+		 */
+
+		/* Load portion of initial state that is contained within
+		 * the ELF file.
+		 */
+		if (phdr.p_filesz) {
+			offset_rv = lseek(fd, phdr.p_offset, SEEK_SET);
+			TEST_ASSERT(offset_rv == phdr.p_offset,
+				"Seek to program segment offset failed,\n"
+				"  program header idx: %u errno: %i\n"
+				"  offset_rv: 0x%jx\n"
+				"  expected: 0x%jx",
+				n1, errno, (intmax_t) offset_rv,
+				(intmax_t) phdr.p_offset);
+			test_read(fd, addr_gva2hva(vm, phdr.p_vaddr),
+				phdr.p_filesz);
+		}
+	}
+	close(fd);
+}
diff --git a/tools/testing/selftests/kvm/lib/guest_modes.c b/tools/testing/selftests/kvm/lib/guest_modes.c
new file mode 100644
index 000000000000..b04901e55138
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/guest_modes.c
@@ -0,0 +1,129 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include "guest_modes.h"
+
+#ifdef __aarch64__
+#include "processor.h"
+enum vm_guest_mode vm_mode_default;
+#endif
+
+struct guest_mode guest_modes[NUM_VM_MODES];
+
+void guest_modes_append_default(void)
+{
+#ifndef __aarch64__
+	guest_mode_append(VM_MODE_DEFAULT, true);
+#else
+	{
+		unsigned int limit = kvm_check_cap(KVM_CAP_ARM_VM_IPA_SIZE);
+		uint32_t ipa4k, ipa16k, ipa64k;
+		int i;
+
+		aarch64_get_supported_page_sizes(limit, &ipa4k, &ipa16k, &ipa64k);
+
+		guest_mode_append(VM_MODE_P52V48_4K, ipa4k >= 52);
+		guest_mode_append(VM_MODE_P52V48_16K, ipa16k >= 52);
+		guest_mode_append(VM_MODE_P52V48_64K, ipa64k >= 52);
+
+		guest_mode_append(VM_MODE_P48V48_4K, ipa4k >= 48);
+		guest_mode_append(VM_MODE_P48V48_16K, ipa16k >= 48);
+		guest_mode_append(VM_MODE_P48V48_64K, ipa64k >= 48);
+
+		guest_mode_append(VM_MODE_P40V48_4K, ipa4k >= 40);
+		guest_mode_append(VM_MODE_P40V48_16K, ipa16k >= 40);
+		guest_mode_append(VM_MODE_P40V48_64K, ipa64k >= 40);
+
+		guest_mode_append(VM_MODE_P36V48_4K, ipa4k >= 36);
+		guest_mode_append(VM_MODE_P36V48_16K, ipa16k >= 36);
+		guest_mode_append(VM_MODE_P36V48_64K, ipa64k >= 36);
+		guest_mode_append(VM_MODE_P36V47_16K, ipa16k >= 36);
+
+		vm_mode_default = ipa4k >= 40 ? VM_MODE_P40V48_4K : NUM_VM_MODES;
+
+		/*
+		 * Pick the first supported IPA size if the default
+		 * isn't available.
+		 */
+		for (i = 0; vm_mode_default == NUM_VM_MODES && i < NUM_VM_MODES; i++) {
+			if (guest_modes[i].supported && guest_modes[i].enabled)
+				vm_mode_default = i;
+		}
+
+		TEST_ASSERT(vm_mode_default != NUM_VM_MODES,
+			    "No supported mode!");
+	}
+#endif
+#ifdef __s390x__
+	{
+		int kvm_fd, vm_fd;
+		struct kvm_s390_vm_cpu_processor info;
+
+		kvm_fd = open_kvm_dev_path_or_exit();
+		vm_fd = __kvm_ioctl(kvm_fd, KVM_CREATE_VM, NULL);
+		kvm_device_attr_get(vm_fd, KVM_S390_VM_CPU_MODEL,
+				    KVM_S390_VM_CPU_PROCESSOR, &info);
+		close(vm_fd);
+		close(kvm_fd);
+		/* Starting with z13 we have 47bits of physical address */
+		if (info.ibc >= 0x30)
+			guest_mode_append(VM_MODE_P47V64_4K, true);
+	}
+#endif
+#ifdef __riscv
+	{
+		unsigned int sz = kvm_check_cap(KVM_CAP_VM_GPA_BITS);
+
+		if (sz >= 52)
+			guest_mode_append(VM_MODE_P52V48_4K, true);
+		if (sz >= 48)
+			guest_mode_append(VM_MODE_P48V48_4K, true);
+	}
+#endif
+}
+
+void for_each_guest_mode(void (*func)(enum vm_guest_mode, void *), void *arg)
+{
+	int i;
+
+	for (i = 0; i < NUM_VM_MODES; ++i) {
+		if (!guest_modes[i].enabled)
+			continue;
+		TEST_ASSERT(guest_modes[i].supported,
+			    "Guest mode ID %d (%s) not supported.",
+			    i, vm_guest_mode_string(i));
+		func(i, arg);
+	}
+}
+
+void guest_modes_help(void)
+{
+	int i;
+
+	printf(" -m: specify the guest mode ID to test\n"
+	       "     (default: test all supported modes)\n"
+	       "     This option may be used multiple times.\n"
+	       "     Guest mode IDs:\n");
+	for (i = 0; i < NUM_VM_MODES; ++i) {
+		printf("         %d:    %s%s\n", i, vm_guest_mode_string(i),
+		       guest_modes[i].supported ? " (supported)" : "");
+	}
+}
+
+void guest_modes_cmdline(const char *arg)
+{
+	static bool mode_selected;
+	unsigned int mode;
+	int i;
+
+	if (!mode_selected) {
+		for (i = 0; i < NUM_VM_MODES; ++i)
+			guest_modes[i].enabled = false;
+		mode_selected = true;
+	}
+
+	mode = atoi_non_negative("Guest mode ID", arg);
+	TEST_ASSERT(mode < NUM_VM_MODES, "Guest mode ID %d too big", mode);
+	guest_modes[mode].enabled = true;
+}
diff --git a/tools/testing/selftests/kvm/lib/guest_sprintf.c b/tools/testing/selftests/kvm/lib/guest_sprintf.c
new file mode 100644
index 000000000000..74627514c4d4
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/guest_sprintf.c
@@ -0,0 +1,314 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "ucall_common.h"
+
+#define APPEND_BUFFER_SAFE(str, end, v) \
+do {					\
+	GUEST_ASSERT(str < end);	\
+	*str++ = (v);			\
+} while (0)
+
+static int isdigit(int ch)
+{
+	return (ch >= '0') && (ch <= '9');
+}
+
+static int skip_atoi(const char **s)
+{
+	int i = 0;
+
+	while (isdigit(**s))
+		i = i * 10 + *((*s)++) - '0';
+	return i;
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SMALL	32		/* Must be 32 == 0x20 */
+#define SPECIAL	64		/* 0x */
+
+#define __do_div(n, base)				\
+({							\
+	int __res;					\
+							\
+	__res = ((uint64_t) n) % (uint32_t) base;	\
+	n = ((uint64_t) n) / (uint32_t) base;		\
+	__res;						\
+})
+
+static char *number(char *str, const char *end, long num, int base, int size,
+		    int precision, int type)
+{
+	/* we are called with base 8, 10 or 16, only, thus don't need "G..."  */
+	static const char digits[16] = "0123456789ABCDEF"; /* "GHIJKLMNOPQRSTUVWXYZ"; */
+
+	char tmp[66];
+	char c, sign, locase;
+	int i;
+
+	/*
+	 * locase = 0 or 0x20. ORing digits or letters with 'locase'
+	 * produces same digits or (maybe lowercased) letters
+	 */
+	locase = (type & SMALL);
+	if (type & LEFT)
+		type &= ~ZEROPAD;
+	if (base < 2 || base > 16)
+		return NULL;
+	c = (type & ZEROPAD) ? '0' : ' ';
+	sign = 0;
+	if (type & SIGN) {
+		if (num < 0) {
+			sign = '-';
+			num = -num;
+			size--;
+		} else if (type & PLUS) {
+			sign = '+';
+			size--;
+		} else if (type & SPACE) {
+			sign = ' ';
+			size--;
+		}
+	}
+	if (type & SPECIAL) {
+		if (base == 16)
+			size -= 2;
+		else if (base == 8)
+			size--;
+	}
+	i = 0;
+	if (num == 0)
+		tmp[i++] = '0';
+	else
+		while (num != 0)
+			tmp[i++] = (digits[__do_div(num, base)] | locase);
+	if (i > precision)
+		precision = i;
+	size -= precision;
+	if (!(type & (ZEROPAD + LEFT)))
+		while (size-- > 0)
+			APPEND_BUFFER_SAFE(str, end, ' ');
+	if (sign)
+		APPEND_BUFFER_SAFE(str, end, sign);
+	if (type & SPECIAL) {
+		if (base == 8)
+			APPEND_BUFFER_SAFE(str, end, '0');
+		else if (base == 16) {
+			APPEND_BUFFER_SAFE(str, end, '0');
+			APPEND_BUFFER_SAFE(str, end, 'x');
+		}
+	}
+	if (!(type & LEFT))
+		while (size-- > 0)
+			APPEND_BUFFER_SAFE(str, end, c);
+	while (i < precision--)
+		APPEND_BUFFER_SAFE(str, end, '0');
+	while (i-- > 0)
+		APPEND_BUFFER_SAFE(str, end, tmp[i]);
+	while (size-- > 0)
+		APPEND_BUFFER_SAFE(str, end, ' ');
+
+	return str;
+}
+
+int guest_vsnprintf(char *buf, int n, const char *fmt, va_list args)
+{
+	char *str, *end;
+	const char *s;
+	uint64_t num;
+	int i, base;
+	int len;
+
+	int flags;		/* flags to number() */
+
+	int field_width;	/* width of output field */
+	int precision;		/*
+				 * min. # of digits for integers; max
+				 * number of chars for from string
+				 */
+	int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+
+	end = buf + n;
+	GUEST_ASSERT(buf < end);
+	GUEST_ASSERT(n > 0);
+
+	for (str = buf; *fmt; ++fmt) {
+		if (*fmt != '%') {
+			APPEND_BUFFER_SAFE(str, end, *fmt);
+			continue;
+		}
+
+		/* process flags */
+		flags = 0;
+repeat:
+		++fmt;		/* this also skips first '%' */
+		switch (*fmt) {
+		case '-':
+			flags |= LEFT;
+			goto repeat;
+		case '+':
+			flags |= PLUS;
+			goto repeat;
+		case ' ':
+			flags |= SPACE;
+			goto repeat;
+		case '#':
+			flags |= SPECIAL;
+			goto repeat;
+		case '0':
+			flags |= ZEROPAD;
+			goto repeat;
+		}
+
+		/* get field width */
+		field_width = -1;
+		if (isdigit(*fmt))
+			field_width = skip_atoi(&fmt);
+		else if (*fmt == '*') {
+			++fmt;
+			/* it's the next argument */
+			field_width = va_arg(args, int);
+			if (field_width < 0) {
+				field_width = -field_width;
+				flags |= LEFT;
+			}
+		}
+
+		/* get the precision */
+		precision = -1;
+		if (*fmt == '.') {
+			++fmt;
+			if (isdigit(*fmt))
+				precision = skip_atoi(&fmt);
+			else if (*fmt == '*') {
+				++fmt;
+				/* it's the next argument */
+				precision = va_arg(args, int);
+			}
+			if (precision < 0)
+				precision = 0;
+		}
+
+		/* get the conversion qualifier */
+		qualifier = -1;
+		if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') {
+			qualifier = *fmt;
+			++fmt;
+		}
+
+		/*
+		 * Play nice with %llu, %llx, etc.  KVM selftests only support
+		 * 64-bit builds, so just treat %ll* the same as %l*.
+		 */
+		if (qualifier == 'l' && *fmt == 'l')
+			++fmt;
+
+		/* default base */
+		base = 10;
+
+		switch (*fmt) {
+		case 'c':
+			if (!(flags & LEFT))
+				while (--field_width > 0)
+					APPEND_BUFFER_SAFE(str, end, ' ');
+			APPEND_BUFFER_SAFE(str, end,
+					    (uint8_t)va_arg(args, int));
+			while (--field_width > 0)
+				APPEND_BUFFER_SAFE(str, end, ' ');
+			continue;
+
+		case 's':
+			s = va_arg(args, char *);
+			len = strnlen(s, precision);
+
+			if (!(flags & LEFT))
+				while (len < field_width--)
+					APPEND_BUFFER_SAFE(str, end, ' ');
+			for (i = 0; i < len; ++i)
+				APPEND_BUFFER_SAFE(str, end, *s++);
+			while (len < field_width--)
+				APPEND_BUFFER_SAFE(str, end, ' ');
+			continue;
+
+		case 'p':
+			if (field_width == -1) {
+				field_width = 2 * sizeof(void *);
+				flags |= SPECIAL | SMALL | ZEROPAD;
+			}
+			str = number(str, end,
+				     (uint64_t)va_arg(args, void *), 16,
+				     field_width, precision, flags);
+			continue;
+
+		case 'n':
+			if (qualifier == 'l') {
+				long *ip = va_arg(args, long *);
+				*ip = (str - buf);
+			} else {
+				int *ip = va_arg(args, int *);
+				*ip = (str - buf);
+			}
+			continue;
+
+		case '%':
+			APPEND_BUFFER_SAFE(str, end, '%');
+			continue;
+
+		/* integer number formats - set up the flags and "break" */
+		case 'o':
+			base = 8;
+			break;
+
+		case 'x':
+			flags |= SMALL;
+		case 'X':
+			base = 16;
+			break;
+
+		case 'd':
+		case 'i':
+			flags |= SIGN;
+		case 'u':
+			break;
+
+		default:
+			APPEND_BUFFER_SAFE(str, end, '%');
+			if (*fmt)
+				APPEND_BUFFER_SAFE(str, end, *fmt);
+			else
+				--fmt;
+			continue;
+		}
+		if (qualifier == 'l')
+			num = va_arg(args, uint64_t);
+		else if (qualifier == 'h') {
+			num = (uint16_t)va_arg(args, int);
+			if (flags & SIGN)
+				num = (int16_t)num;
+		} else if (flags & SIGN)
+			num = va_arg(args, int);
+		else
+			num = va_arg(args, uint32_t);
+		str = number(str, end, num, base, field_width, precision, flags);
+	}
+
+	GUEST_ASSERT(str < end);
+	*str = '\0';
+	return str - buf;
+}
+
+int guest_snprintf(char *buf, int n, const char *fmt, ...)
+{
+	va_list va;
+	int len;
+
+	va_start(va, fmt);
+	len = guest_vsnprintf(buf, n, fmt, va);
+	va_end(va);
+
+	return len;
+}
diff --git a/tools/testing/selftests/kvm/lib/io.c b/tools/testing/selftests/kvm/lib/io.c
new file mode 100644
index 000000000000..fedb2a741f0b
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/io.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tools/testing/selftests/kvm/lib/io.c
+ *
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#include "test_util.h"
+
+/* Test Write
+ *
+ * A wrapper for write(2), that automatically handles the following
+ * special conditions:
+ *
+ *   + Interrupted system call (EINTR)
+ *   + Write of less than requested amount
+ *   + Non-block return (EAGAIN)
+ *
+ * For each of the above, an additional write is performed to automatically
+ * continue writing the requested data.
+ * There are also many cases where write(2) can return an unexpected
+ * error (e.g. EIO).  Such errors cause a TEST_ASSERT failure.
+ *
+ * Note, for function signature compatibility with write(2), this function
+ * returns the number of bytes written, but that value will always be equal
+ * to the number of requested bytes.  All other conditions in this and
+ * future enhancements to this function either automatically issue another
+ * write(2) or cause a TEST_ASSERT failure.
+ *
+ * Args:
+ *  fd    - Opened file descriptor to file to be written.
+ *  count - Number of bytes to write.
+ *
+ * Output:
+ *  buf   - Starting address of data to be written.
+ *
+ * Return:
+ *  On success, number of bytes written.
+ *  On failure, a TEST_ASSERT failure is caused.
+ */
+ssize_t test_write(int fd, const void *buf, size_t count)
+{
+	ssize_t rc;
+	ssize_t num_written = 0;
+	size_t num_left = count;
+	const char *ptr = buf;
+
+	/* Note: Count of zero is allowed (see "RETURN VALUE" portion of
+	 * write(2) manpage for details.
+	 */
+	TEST_ASSERT(count >= 0, "Unexpected count, count: %li", count);
+
+	do {
+		rc = write(fd, ptr, num_left);
+
+		switch (rc) {
+		case -1:
+			TEST_ASSERT(errno == EAGAIN || errno == EINTR,
+				    "Unexpected write failure,\n"
+				    "  rc: %zi errno: %i", rc, errno);
+			continue;
+
+		case 0:
+			TEST_FAIL("Unexpected EOF,\n"
+				  "  rc: %zi num_written: %zi num_left: %zu",
+				  rc, num_written, num_left);
+			break;
+
+		default:
+			TEST_ASSERT(rc >= 0, "Unexpected ret from write,\n"
+				"  rc: %zi errno: %i", rc, errno);
+			num_written += rc;
+			num_left -= rc;
+			ptr += rc;
+			break;
+		}
+	} while (num_written < count);
+
+	return num_written;
+}
+
+/* Test Read
+ *
+ * A wrapper for read(2), that automatically handles the following
+ * special conditions:
+ *
+ *   + Interrupted system call (EINTR)
+ *   + Read of less than requested amount
+ *   + Non-block return (EAGAIN)
+ *
+ * For each of the above, an additional read is performed to automatically
+ * continue reading the requested data.
+ * There are also many cases where read(2) can return an unexpected
+ * error (e.g. EIO).  Such errors cause a TEST_ASSERT failure.  Note,
+ * it is expected that the file opened by fd at the current file position
+ * contains at least the number of requested bytes to be read.  A TEST_ASSERT
+ * failure is produced if an End-Of-File condition occurs, before all the
+ * data is read.  It is the callers responsibility to assure that sufficient
+ * data exists.
+ *
+ * Note, for function signature compatibility with read(2), this function
+ * returns the number of bytes read, but that value will always be equal
+ * to the number of requested bytes.  All other conditions in this and
+ * future enhancements to this function either automatically issue another
+ * read(2) or cause a TEST_ASSERT failure.
+ *
+ * Args:
+ *  fd    - Opened file descriptor to file to be read.
+ *  count - Number of bytes to read.
+ *
+ * Output:
+ *  buf   - Starting address of where to write the bytes read.
+ *
+ * Return:
+ *  On success, number of bytes read.
+ *  On failure, a TEST_ASSERT failure is caused.
+ */
+ssize_t test_read(int fd, void *buf, size_t count)
+{
+	ssize_t rc;
+	ssize_t num_read = 0;
+	size_t num_left = count;
+	char *ptr = buf;
+
+	/* Note: Count of zero is allowed (see "If count is zero" portion of
+	 * read(2) manpage for details.
+	 */
+	TEST_ASSERT(count >= 0, "Unexpected count, count: %li", count);
+
+	do {
+		rc = read(fd, ptr, num_left);
+
+		switch (rc) {
+		case -1:
+			TEST_ASSERT(errno == EAGAIN || errno == EINTR,
+				    "Unexpected read failure,\n"
+				    "  rc: %zi errno: %i", rc, errno);
+			break;
+
+		case 0:
+			TEST_FAIL("Unexpected EOF,\n"
+				  "   rc: %zi num_read: %zi num_left: %zu",
+				  rc, num_read, num_left);
+			break;
+
+		default:
+			TEST_ASSERT(rc > 0, "Unexpected ret from read,\n"
+				    "  rc: %zi errno: %i", rc, errno);
+			num_read += rc;
+			num_left -= rc;
+			ptr += rc;
+			break;
+		}
+	} while (num_read < count);
+
+	return num_read;
+}
diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
new file mode 100644
index 000000000000..8279b6ced8d2
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -0,0 +1,2352 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tools/testing/selftests/kvm/lib/kvm_util.c
+ *
+ * Copyright (C) 2018, Google LLC.
+ */
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#include <assert.h>
+#include <sched.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <linux/kernel.h>
+
+#define KVM_UTIL_MIN_PFN	2
+
+uint32_t guest_random_seed;
+struct guest_random_state guest_rng;
+static uint32_t last_guest_seed;
+
+static size_t vcpu_mmap_sz(void);
+
+int __open_path_or_exit(const char *path, int flags, const char *enoent_help)
+{
+	int fd;
+
+	fd = open(path, flags);
+	if (fd < 0)
+		goto error;
+
+	return fd;
+
+error:
+	if (errno == EACCES || errno == ENOENT)
+		ksft_exit_skip("- Cannot open '%s': %s.  %s\n",
+			       path, strerror(errno),
+			       errno == EACCES ? "Root required?" : enoent_help);
+	TEST_FAIL("Failed to open '%s'", path);
+}
+
+int open_path_or_exit(const char *path, int flags)
+{
+	return __open_path_or_exit(path, flags, "");
+}
+
+/*
+ * Open KVM_DEV_PATH if available, otherwise exit the entire program.
+ *
+ * Input Args:
+ *   flags - The flags to pass when opening KVM_DEV_PATH.
+ *
+ * Return:
+ *   The opened file descriptor of /dev/kvm.
+ */
+static int _open_kvm_dev_path_or_exit(int flags)
+{
+	return __open_path_or_exit(KVM_DEV_PATH, flags, "Is KVM loaded and enabled?");
+}
+
+int open_kvm_dev_path_or_exit(void)
+{
+	return _open_kvm_dev_path_or_exit(O_RDONLY);
+}
+
+static ssize_t get_module_param(const char *module_name, const char *param,
+				void *buffer, size_t buffer_size)
+{
+	const int path_size = 128;
+	char path[path_size];
+	ssize_t bytes_read;
+	int fd, r;
+
+	/* Verify KVM is loaded, to provide a more helpful SKIP message. */
+	close(open_kvm_dev_path_or_exit());
+
+	r = snprintf(path, path_size, "/sys/module/%s/parameters/%s",
+		     module_name, param);
+	TEST_ASSERT(r < path_size,
+		    "Failed to construct sysfs path in %d bytes.", path_size);
+
+	fd = open_path_or_exit(path, O_RDONLY);
+
+	bytes_read = read(fd, buffer, buffer_size);
+	TEST_ASSERT(bytes_read > 0, "read(%s) returned %ld, wanted %ld bytes",
+		    path, bytes_read, buffer_size);
+
+	r = close(fd);
+	TEST_ASSERT(!r, "close(%s) failed", path);
+	return bytes_read;
+}
+
+int kvm_get_module_param_integer(const char *module_name, const char *param)
+{
+	/*
+	 * 16 bytes to hold a 64-bit value (1 byte per char), 1 byte for the
+	 * NUL char, and 1 byte because the kernel sucks and inserts a newline
+	 * at the end.
+	 */
+	char value[16 + 1 + 1];
+	ssize_t r;
+
+	memset(value, '\0', sizeof(value));
+
+	r = get_module_param(module_name, param, value, sizeof(value));
+	TEST_ASSERT(value[r - 1] == '\n',
+		    "Expected trailing newline, got char '%c'", value[r - 1]);
+
+	/*
+	 * Squash the newline, otherwise atoi_paranoid() will complain about
+	 * trailing non-NUL characters in the string.
+	 */
+	value[r - 1] = '\0';
+	return atoi_paranoid(value);
+}
+
+bool kvm_get_module_param_bool(const char *module_name, const char *param)
+{
+	char value;
+	ssize_t r;
+
+	r = get_module_param(module_name, param, &value, sizeof(value));
+	TEST_ASSERT_EQ(r, 1);
+
+	if (value == 'Y')
+		return true;
+	else if (value == 'N')
+		return false;
+
+	TEST_FAIL("Unrecognized value '%c' for boolean module param", value);
+}
+
+/*
+ * Capability
+ *
+ * Input Args:
+ *   cap - Capability
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   On success, the Value corresponding to the capability (KVM_CAP_*)
+ *   specified by the value of cap.  On failure a TEST_ASSERT failure
+ *   is produced.
+ *
+ * Looks up and returns the value corresponding to the capability
+ * (KVM_CAP_*) given by cap.
+ */
+unsigned int kvm_check_cap(long cap)
+{
+	int ret;
+	int kvm_fd;
+
+	kvm_fd = open_kvm_dev_path_or_exit();
+	ret = __kvm_ioctl(kvm_fd, KVM_CHECK_EXTENSION, (void *)cap);
+	TEST_ASSERT(ret >= 0, KVM_IOCTL_ERROR(KVM_CHECK_EXTENSION, ret));
+
+	close(kvm_fd);
+
+	return (unsigned int)ret;
+}
+
+void vm_enable_dirty_ring(struct kvm_vm *vm, uint32_t ring_size)
+{
+	if (vm_check_cap(vm, KVM_CAP_DIRTY_LOG_RING_ACQ_REL))
+		vm_enable_cap(vm, KVM_CAP_DIRTY_LOG_RING_ACQ_REL, ring_size);
+	else
+		vm_enable_cap(vm, KVM_CAP_DIRTY_LOG_RING, ring_size);
+	vm->dirty_ring_size = ring_size;
+}
+
+static void vm_open(struct kvm_vm *vm)
+{
+	vm->kvm_fd = _open_kvm_dev_path_or_exit(O_RDWR);
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_IMMEDIATE_EXIT));
+
+	vm->fd = __kvm_ioctl(vm->kvm_fd, KVM_CREATE_VM, (void *)vm->type);
+	TEST_ASSERT(vm->fd >= 0, KVM_IOCTL_ERROR(KVM_CREATE_VM, vm->fd));
+
+	if (kvm_has_cap(KVM_CAP_BINARY_STATS_FD))
+		vm->stats.fd = vm_get_stats_fd(vm);
+	else
+		vm->stats.fd = -1;
+}
+
+const char *vm_guest_mode_string(uint32_t i)
+{
+	static const char * const strings[] = {
+		[VM_MODE_P52V48_4K]	= "PA-bits:52,  VA-bits:48,  4K pages",
+		[VM_MODE_P52V48_16K]	= "PA-bits:52,  VA-bits:48, 16K pages",
+		[VM_MODE_P52V48_64K]	= "PA-bits:52,  VA-bits:48, 64K pages",
+		[VM_MODE_P48V48_4K]	= "PA-bits:48,  VA-bits:48,  4K pages",
+		[VM_MODE_P48V48_16K]	= "PA-bits:48,  VA-bits:48, 16K pages",
+		[VM_MODE_P48V48_64K]	= "PA-bits:48,  VA-bits:48, 64K pages",
+		[VM_MODE_P40V48_4K]	= "PA-bits:40,  VA-bits:48,  4K pages",
+		[VM_MODE_P40V48_16K]	= "PA-bits:40,  VA-bits:48, 16K pages",
+		[VM_MODE_P40V48_64K]	= "PA-bits:40,  VA-bits:48, 64K pages",
+		[VM_MODE_PXXVYY_4K]	= "PA-bits:ANY, VA-bits:48 or 57, 4K pages",
+		[VM_MODE_P47V64_4K]	= "PA-bits:47,  VA-bits:64,  4K pages",
+		[VM_MODE_P44V64_4K]	= "PA-bits:44,  VA-bits:64,  4K pages",
+		[VM_MODE_P36V48_4K]	= "PA-bits:36,  VA-bits:48,  4K pages",
+		[VM_MODE_P36V48_16K]	= "PA-bits:36,  VA-bits:48, 16K pages",
+		[VM_MODE_P36V48_64K]	= "PA-bits:36,  VA-bits:48, 64K pages",
+		[VM_MODE_P47V47_16K]	= "PA-bits:47,  VA-bits:47, 16K pages",
+		[VM_MODE_P36V47_16K]	= "PA-bits:36,  VA-bits:47, 16K pages",
+	};
+	_Static_assert(sizeof(strings)/sizeof(char *) == NUM_VM_MODES,
+		       "Missing new mode strings?");
+
+	TEST_ASSERT(i < NUM_VM_MODES, "Guest mode ID %d too big", i);
+
+	return strings[i];
+}
+
+const struct vm_guest_mode_params vm_guest_mode_params[] = {
+	[VM_MODE_P52V48_4K]	= { 52, 48,  0x1000, 12 },
+	[VM_MODE_P52V48_16K]	= { 52, 48,  0x4000, 14 },
+	[VM_MODE_P52V48_64K]	= { 52, 48, 0x10000, 16 },
+	[VM_MODE_P48V48_4K]	= { 48, 48,  0x1000, 12 },
+	[VM_MODE_P48V48_16K]	= { 48, 48,  0x4000, 14 },
+	[VM_MODE_P48V48_64K]	= { 48, 48, 0x10000, 16 },
+	[VM_MODE_P40V48_4K]	= { 40, 48,  0x1000, 12 },
+	[VM_MODE_P40V48_16K]	= { 40, 48,  0x4000, 14 },
+	[VM_MODE_P40V48_64K]	= { 40, 48, 0x10000, 16 },
+	[VM_MODE_PXXVYY_4K]	= {  0,  0,  0x1000, 12 },
+	[VM_MODE_P47V64_4K]	= { 47, 64,  0x1000, 12 },
+	[VM_MODE_P44V64_4K]	= { 44, 64,  0x1000, 12 },
+	[VM_MODE_P36V48_4K]	= { 36, 48,  0x1000, 12 },
+	[VM_MODE_P36V48_16K]	= { 36, 48,  0x4000, 14 },
+	[VM_MODE_P36V48_64K]	= { 36, 48, 0x10000, 16 },
+	[VM_MODE_P47V47_16K]	= { 47, 47,  0x4000, 14 },
+	[VM_MODE_P36V47_16K]	= { 36, 47,  0x4000, 14 },
+};
+_Static_assert(sizeof(vm_guest_mode_params)/sizeof(struct vm_guest_mode_params) == NUM_VM_MODES,
+	       "Missing new mode params?");
+
+/*
+ * Initializes vm->vpages_valid to match the canonical VA space of the
+ * architecture.
+ *
+ * The default implementation is valid for architectures which split the
+ * range addressed by a single page table into a low and high region
+ * based on the MSB of the VA. On architectures with this behavior
+ * the VA region spans [0, 2^(va_bits - 1)), [-(2^(va_bits - 1), -1].
+ */
+__weak void vm_vaddr_populate_bitmap(struct kvm_vm *vm)
+{
+	sparsebit_set_num(vm->vpages_valid,
+		0, (1ULL << (vm->va_bits - 1)) >> vm->page_shift);
+	sparsebit_set_num(vm->vpages_valid,
+		(~((1ULL << (vm->va_bits - 1)) - 1)) >> vm->page_shift,
+		(1ULL << (vm->va_bits - 1)) >> vm->page_shift);
+}
+
+struct kvm_vm *____vm_create(struct vm_shape shape)
+{
+	struct kvm_vm *vm;
+
+	vm = calloc(1, sizeof(*vm));
+	TEST_ASSERT(vm != NULL, "Insufficient Memory");
+
+	INIT_LIST_HEAD(&vm->vcpus);
+	vm->regions.gpa_tree = RB_ROOT;
+	vm->regions.hva_tree = RB_ROOT;
+	hash_init(vm->regions.slot_hash);
+
+	vm->mode = shape.mode;
+	vm->type = shape.type;
+
+	vm->pa_bits = vm_guest_mode_params[vm->mode].pa_bits;
+	vm->va_bits = vm_guest_mode_params[vm->mode].va_bits;
+	vm->page_size = vm_guest_mode_params[vm->mode].page_size;
+	vm->page_shift = vm_guest_mode_params[vm->mode].page_shift;
+
+	/* Setup mode specific traits. */
+	switch (vm->mode) {
+	case VM_MODE_P52V48_4K:
+		vm->pgtable_levels = 4;
+		break;
+	case VM_MODE_P52V48_64K:
+		vm->pgtable_levels = 3;
+		break;
+	case VM_MODE_P48V48_4K:
+		vm->pgtable_levels = 4;
+		break;
+	case VM_MODE_P48V48_64K:
+		vm->pgtable_levels = 3;
+		break;
+	case VM_MODE_P40V48_4K:
+	case VM_MODE_P36V48_4K:
+		vm->pgtable_levels = 4;
+		break;
+	case VM_MODE_P40V48_64K:
+	case VM_MODE_P36V48_64K:
+		vm->pgtable_levels = 3;
+		break;
+	case VM_MODE_P52V48_16K:
+	case VM_MODE_P48V48_16K:
+	case VM_MODE_P40V48_16K:
+	case VM_MODE_P36V48_16K:
+		vm->pgtable_levels = 4;
+		break;
+	case VM_MODE_P47V47_16K:
+	case VM_MODE_P36V47_16K:
+		vm->pgtable_levels = 3;
+		break;
+	case VM_MODE_PXXVYY_4K:
+#ifdef __x86_64__
+		kvm_get_cpu_address_width(&vm->pa_bits, &vm->va_bits);
+		kvm_init_vm_address_properties(vm);
+
+		pr_debug("Guest physical address width detected: %d\n",
+			 vm->pa_bits);
+		pr_debug("Guest virtual address width detected: %d\n",
+			 vm->va_bits);
+
+		if (vm->va_bits == 57) {
+			vm->pgtable_levels = 5;
+		} else {
+			TEST_ASSERT(vm->va_bits == 48,
+				    "Unexpected guest virtual address width: %d",
+				    vm->va_bits);
+			vm->pgtable_levels = 4;
+		}
+#else
+		TEST_FAIL("VM_MODE_PXXVYY_4K not supported on non-x86 platforms");
+#endif
+		break;
+	case VM_MODE_P47V64_4K:
+		vm->pgtable_levels = 5;
+		break;
+	case VM_MODE_P44V64_4K:
+		vm->pgtable_levels = 5;
+		break;
+	default:
+		TEST_FAIL("Unknown guest mode: 0x%x", vm->mode);
+	}
+
+#ifdef __aarch64__
+	TEST_ASSERT(!vm->type, "ARM doesn't support test-provided types");
+	if (vm->pa_bits != 40)
+		vm->type = KVM_VM_TYPE_ARM_IPA_SIZE(vm->pa_bits);
+#endif
+
+	vm_open(vm);
+
+	/* Limit to VA-bit canonical virtual addresses. */
+	vm->vpages_valid = sparsebit_alloc();
+	vm_vaddr_populate_bitmap(vm);
+
+	/* Limit physical addresses to PA-bits. */
+	vm->max_gfn = vm_compute_max_gfn(vm);
+
+	/* Allocate and setup memory for guest. */
+	vm->vpages_mapped = sparsebit_alloc();
+
+	return vm;
+}
+
+static uint64_t vm_nr_pages_required(enum vm_guest_mode mode,
+				     uint32_t nr_runnable_vcpus,
+				     uint64_t extra_mem_pages)
+{
+	uint64_t page_size = vm_guest_mode_params[mode].page_size;
+	uint64_t nr_pages;
+
+	TEST_ASSERT(nr_runnable_vcpus,
+		    "Use vm_create_barebones() for VMs that _never_ have vCPUs");
+
+	TEST_ASSERT(nr_runnable_vcpus <= kvm_check_cap(KVM_CAP_MAX_VCPUS),
+		    "nr_vcpus = %d too large for host, max-vcpus = %d",
+		    nr_runnable_vcpus, kvm_check_cap(KVM_CAP_MAX_VCPUS));
+
+	/*
+	 * Arbitrarily allocate 512 pages (2mb when page size is 4kb) for the
+	 * test code and other per-VM assets that will be loaded into memslot0.
+	 */
+	nr_pages = 512;
+
+	/* Account for the per-vCPU stacks on behalf of the test. */
+	nr_pages += nr_runnable_vcpus * DEFAULT_STACK_PGS;
+
+	/*
+	 * Account for the number of pages needed for the page tables.  The
+	 * maximum page table size for a memory region will be when the
+	 * smallest page size is used. Considering each page contains x page
+	 * table descriptors, the total extra size for page tables (for extra
+	 * N pages) will be: N/x+N/x^2+N/x^3+... which is definitely smaller
+	 * than N/x*2.
+	 */
+	nr_pages += (nr_pages + extra_mem_pages) / PTES_PER_MIN_PAGE * 2;
+
+	/* Account for the number of pages needed by ucall. */
+	nr_pages += ucall_nr_pages_required(page_size);
+
+	return vm_adjust_num_guest_pages(mode, nr_pages);
+}
+
+void kvm_set_files_rlimit(uint32_t nr_vcpus)
+{
+	/*
+	 * Each vCPU will open two file descriptors: the vCPU itself and the
+	 * vCPU's binary stats file descriptor.  Add an arbitrary amount of
+	 * buffer for all other files a test may open.
+	 */
+	int nr_fds_wanted = nr_vcpus * 2 + 100;
+	struct rlimit rl;
+
+	/*
+	 * Check that we're allowed to open nr_fds_wanted file descriptors and
+	 * try raising the limits if needed.
+	 */
+	TEST_ASSERT(!getrlimit(RLIMIT_NOFILE, &rl), "getrlimit() failed!");
+
+	if (rl.rlim_cur < nr_fds_wanted) {
+		rl.rlim_cur = nr_fds_wanted;
+		if (rl.rlim_max < nr_fds_wanted) {
+			int old_rlim_max = rl.rlim_max;
+
+			rl.rlim_max = nr_fds_wanted;
+			__TEST_REQUIRE(setrlimit(RLIMIT_NOFILE, &rl) >= 0,
+				       "RLIMIT_NOFILE hard limit is too low (%d, wanted %d)",
+				       old_rlim_max, nr_fds_wanted);
+		} else {
+			TEST_ASSERT(!setrlimit(RLIMIT_NOFILE, &rl), "setrlimit() failed!");
+		}
+	}
+
+}
+
+static bool is_guest_memfd_required(struct vm_shape shape)
+{
+#ifdef __x86_64__
+	return shape.type == KVM_X86_SNP_VM;
+#else
+	return false;
+#endif
+}
+
+struct kvm_vm *__vm_create(struct vm_shape shape, uint32_t nr_runnable_vcpus,
+			   uint64_t nr_extra_pages)
+{
+	uint64_t nr_pages = vm_nr_pages_required(shape.mode, nr_runnable_vcpus,
+						 nr_extra_pages);
+	struct userspace_mem_region *slot0;
+	struct kvm_vm *vm;
+	int i, flags;
+
+	kvm_set_files_rlimit(nr_runnable_vcpus);
+
+	pr_debug("%s: mode='%s' type='%d', pages='%ld'\n", __func__,
+		 vm_guest_mode_string(shape.mode), shape.type, nr_pages);
+
+	vm = ____vm_create(shape);
+
+	/*
+	 * Force GUEST_MEMFD for the primary memory region if necessary, e.g.
+	 * for CoCo VMs that require GUEST_MEMFD backed private memory.
+	 */
+	flags = 0;
+	if (is_guest_memfd_required(shape))
+		flags |= KVM_MEM_GUEST_MEMFD;
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, nr_pages, flags);
+	for (i = 0; i < NR_MEM_REGIONS; i++)
+		vm->memslots[i] = 0;
+
+	kvm_vm_elf_load(vm, program_invocation_name);
+
+	/*
+	 * TODO: Add proper defines to protect the library's memslots, and then
+	 * carve out memslot1 for the ucall MMIO address.  KVM treats writes to
+	 * read-only memslots as MMIO, and creating a read-only memslot for the
+	 * MMIO region would prevent silently clobbering the MMIO region.
+	 */
+	slot0 = memslot2region(vm, 0);
+	ucall_init(vm, slot0->region.guest_phys_addr + slot0->region.memory_size);
+
+	if (guest_random_seed != last_guest_seed) {
+		pr_info("Random seed: 0x%x\n", guest_random_seed);
+		last_guest_seed = guest_random_seed;
+	}
+	guest_rng = new_guest_random_state(guest_random_seed);
+	sync_global_to_guest(vm, guest_rng);
+
+	kvm_arch_vm_post_create(vm, nr_runnable_vcpus);
+
+	return vm;
+}
+
+/*
+ * VM Create with customized parameters
+ *
+ * Input Args:
+ *   mode - VM Mode (e.g. VM_MODE_P52V48_4K)
+ *   nr_vcpus - VCPU count
+ *   extra_mem_pages - Non-slot0 physical memory total size
+ *   guest_code - Guest entry point
+ *   vcpuids - VCPU IDs
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Pointer to opaque structure that describes the created VM.
+ *
+ * Creates a VM with the mode specified by mode (e.g. VM_MODE_P52V48_4K).
+ * extra_mem_pages is only used to calculate the maximum page table size,
+ * no real memory allocation for non-slot0 memory in this function.
+ */
+struct kvm_vm *__vm_create_with_vcpus(struct vm_shape shape, uint32_t nr_vcpus,
+				      uint64_t extra_mem_pages,
+				      void *guest_code, struct kvm_vcpu *vcpus[])
+{
+	struct kvm_vm *vm;
+	int i;
+
+	TEST_ASSERT(!nr_vcpus || vcpus, "Must provide vCPU array");
+
+	vm = __vm_create(shape, nr_vcpus, extra_mem_pages);
+
+	for (i = 0; i < nr_vcpus; ++i)
+		vcpus[i] = vm_vcpu_add(vm, i, guest_code);
+
+	kvm_arch_vm_finalize_vcpus(vm);
+	return vm;
+}
+
+struct kvm_vm *__vm_create_shape_with_one_vcpu(struct vm_shape shape,
+					       struct kvm_vcpu **vcpu,
+					       uint64_t extra_mem_pages,
+					       void *guest_code)
+{
+	struct kvm_vcpu *vcpus[1];
+	struct kvm_vm *vm;
+
+	vm = __vm_create_with_vcpus(shape, 1, extra_mem_pages, guest_code, vcpus);
+
+	*vcpu = vcpus[0];
+	return vm;
+}
+
+/*
+ * VM Restart
+ *
+ * Input Args:
+ *   vm - VM that has been released before
+ *
+ * Output Args: None
+ *
+ * Reopens the file descriptors associated to the VM and reinstates the
+ * global state, such as the irqchip and the memory regions that are mapped
+ * into the guest.
+ */
+void kvm_vm_restart(struct kvm_vm *vmp)
+{
+	int ctr;
+	struct userspace_mem_region *region;
+
+	vm_open(vmp);
+	if (vmp->has_irqchip)
+		vm_create_irqchip(vmp);
+
+	hash_for_each(vmp->regions.slot_hash, ctr, region, slot_node) {
+		int ret = ioctl(vmp->fd, KVM_SET_USER_MEMORY_REGION2, &region->region);
+
+		TEST_ASSERT(ret == 0, "KVM_SET_USER_MEMORY_REGION2 IOCTL failed,\n"
+			    "  rc: %i errno: %i\n"
+			    "  slot: %u flags: 0x%x\n"
+			    "  guest_phys_addr: 0x%llx size: 0x%llx",
+			    ret, errno, region->region.slot,
+			    region->region.flags,
+			    region->region.guest_phys_addr,
+			    region->region.memory_size);
+	}
+}
+
+__weak struct kvm_vcpu *vm_arch_vcpu_recreate(struct kvm_vm *vm,
+					      uint32_t vcpu_id)
+{
+	return __vm_vcpu_add(vm, vcpu_id);
+}
+
+struct kvm_vcpu *vm_recreate_with_one_vcpu(struct kvm_vm *vm)
+{
+	kvm_vm_restart(vm);
+
+	return vm_vcpu_recreate(vm, 0);
+}
+
+int __pin_task_to_cpu(pthread_t task, int cpu)
+{
+	cpu_set_t cpuset;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	return pthread_setaffinity_np(task, sizeof(cpuset), &cpuset);
+}
+
+static uint32_t parse_pcpu(const char *cpu_str, const cpu_set_t *allowed_mask)
+{
+	uint32_t pcpu = atoi_non_negative("CPU number", cpu_str);
+
+	TEST_ASSERT(CPU_ISSET(pcpu, allowed_mask),
+		    "Not allowed to run on pCPU '%d', check cgroups?", pcpu);
+	return pcpu;
+}
+
+void kvm_print_vcpu_pinning_help(void)
+{
+	const char *name = program_invocation_name;
+
+	printf(" -c: Pin tasks to physical CPUs.  Takes a list of comma separated\n"
+	       "     values (target pCPU), one for each vCPU, plus an optional\n"
+	       "     entry for the main application task (specified via entry\n"
+	       "     <nr_vcpus + 1>).  If used, entries must be provided for all\n"
+	       "     vCPUs, i.e. pinning vCPUs is all or nothing.\n\n"
+	       "     E.g. to create 3 vCPUs, pin vCPU0=>pCPU22, vCPU1=>pCPU23,\n"
+	       "     vCPU2=>pCPU24, and pin the application task to pCPU50:\n\n"
+	       "         %s -v 3 -c 22,23,24,50\n\n"
+	       "     To leave the application task unpinned, drop the final entry:\n\n"
+	       "         %s -v 3 -c 22,23,24\n\n"
+	       "     (default: no pinning)\n", name, name);
+}
+
+void kvm_parse_vcpu_pinning(const char *pcpus_string, uint32_t vcpu_to_pcpu[],
+			    int nr_vcpus)
+{
+	cpu_set_t allowed_mask;
+	char *cpu, *cpu_list;
+	char delim[2] = ",";
+	int i, r;
+
+	cpu_list = strdup(pcpus_string);
+	TEST_ASSERT(cpu_list, "strdup() allocation failed.");
+
+	r = sched_getaffinity(0, sizeof(allowed_mask), &allowed_mask);
+	TEST_ASSERT(!r, "sched_getaffinity() failed");
+
+	cpu = strtok(cpu_list, delim);
+
+	/* 1. Get all pcpus for vcpus. */
+	for (i = 0; i < nr_vcpus; i++) {
+		TEST_ASSERT(cpu, "pCPU not provided for vCPU '%d'", i);
+		vcpu_to_pcpu[i] = parse_pcpu(cpu, &allowed_mask);
+		cpu = strtok(NULL, delim);
+	}
+
+	/* 2. Check if the main worker needs to be pinned. */
+	if (cpu) {
+		pin_self_to_cpu(parse_pcpu(cpu, &allowed_mask));
+		cpu = strtok(NULL, delim);
+	}
+
+	TEST_ASSERT(!cpu, "pCPU list contains trailing garbage characters '%s'", cpu);
+	free(cpu_list);
+}
+
+/*
+ * Userspace Memory Region Find
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   start - Starting VM physical address
+ *   end - Ending VM physical address, inclusive.
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Pointer to overlapping region, NULL if no such region.
+ *
+ * Searches for a region with any physical memory that overlaps with
+ * any portion of the guest physical addresses from start to end
+ * inclusive.  If multiple overlapping regions exist, a pointer to any
+ * of the regions is returned.  Null is returned only when no overlapping
+ * region exists.
+ */
+static struct userspace_mem_region *
+userspace_mem_region_find(struct kvm_vm *vm, uint64_t start, uint64_t end)
+{
+	struct rb_node *node;
+
+	for (node = vm->regions.gpa_tree.rb_node; node; ) {
+		struct userspace_mem_region *region =
+			container_of(node, struct userspace_mem_region, gpa_node);
+		uint64_t existing_start = region->region.guest_phys_addr;
+		uint64_t existing_end = region->region.guest_phys_addr
+			+ region->region.memory_size - 1;
+		if (start <= existing_end && end >= existing_start)
+			return region;
+
+		if (start < existing_start)
+			node = node->rb_left;
+		else
+			node = node->rb_right;
+	}
+
+	return NULL;
+}
+
+static void kvm_stats_release(struct kvm_binary_stats *stats)
+{
+	if (stats->fd < 0)
+		return;
+
+	if (stats->desc) {
+		free(stats->desc);
+		stats->desc = NULL;
+	}
+
+	kvm_close(stats->fd);
+	stats->fd = -1;
+}
+
+__weak void vcpu_arch_free(struct kvm_vcpu *vcpu)
+{
+
+}
+
+/*
+ * VM VCPU Remove
+ *
+ * Input Args:
+ *   vcpu - VCPU to remove
+ *
+ * Output Args: None
+ *
+ * Return: None, TEST_ASSERT failures for all error conditions
+ *
+ * Removes a vCPU from a VM and frees its resources.
+ */
+static void vm_vcpu_rm(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	if (vcpu->dirty_gfns) {
+		kvm_munmap(vcpu->dirty_gfns, vm->dirty_ring_size);
+		vcpu->dirty_gfns = NULL;
+	}
+
+	kvm_munmap(vcpu->run, vcpu_mmap_sz());
+
+	kvm_close(vcpu->fd);
+	kvm_stats_release(&vcpu->stats);
+
+	list_del(&vcpu->list);
+
+	vcpu_arch_free(vcpu);
+	free(vcpu);
+}
+
+void kvm_vm_release(struct kvm_vm *vmp)
+{
+	struct kvm_vcpu *vcpu, *tmp;
+
+	list_for_each_entry_safe(vcpu, tmp, &vmp->vcpus, list)
+		vm_vcpu_rm(vmp, vcpu);
+
+	kvm_close(vmp->fd);
+	kvm_close(vmp->kvm_fd);
+
+	/* Free cached stats metadata and close FD */
+	kvm_stats_release(&vmp->stats);
+
+	kvm_arch_vm_release(vmp);
+}
+
+static void __vm_mem_region_delete(struct kvm_vm *vm,
+				   struct userspace_mem_region *region)
+{
+	rb_erase(&region->gpa_node, &vm->regions.gpa_tree);
+	rb_erase(&region->hva_node, &vm->regions.hva_tree);
+	hash_del(&region->slot_node);
+
+	sparsebit_free(&region->unused_phy_pages);
+	sparsebit_free(&region->protected_phy_pages);
+	kvm_munmap(region->mmap_start, region->mmap_size);
+	if (region->fd >= 0) {
+		/* There's an extra map when using shared memory. */
+		kvm_munmap(region->mmap_alias, region->mmap_size);
+		close(region->fd);
+	}
+	if (region->region.guest_memfd >= 0)
+		close(region->region.guest_memfd);
+
+	free(region);
+}
+
+/*
+ * Destroys and frees the VM pointed to by vmp.
+ */
+void kvm_vm_free(struct kvm_vm *vmp)
+{
+	int ctr;
+	struct hlist_node *node;
+	struct userspace_mem_region *region;
+
+	if (vmp == NULL)
+		return;
+
+	/* Free userspace_mem_regions. */
+	hash_for_each_safe(vmp->regions.slot_hash, ctr, node, region, slot_node)
+		__vm_mem_region_delete(vmp, region);
+
+	/* Free sparsebit arrays. */
+	sparsebit_free(&vmp->vpages_valid);
+	sparsebit_free(&vmp->vpages_mapped);
+
+	kvm_vm_release(vmp);
+
+	/* Free the structure describing the VM. */
+	free(vmp);
+}
+
+int kvm_memfd_alloc(size_t size, bool hugepages)
+{
+	int memfd_flags = MFD_CLOEXEC;
+	int fd;
+
+	if (hugepages)
+		memfd_flags |= MFD_HUGETLB;
+
+	fd = memfd_create("kvm_selftest", memfd_flags);
+	TEST_ASSERT(fd != -1, __KVM_SYSCALL_ERROR("memfd_create()", fd));
+
+	kvm_ftruncate(fd, size);
+	kvm_fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, size);
+
+	return fd;
+}
+
+static void vm_userspace_mem_region_gpa_insert(struct rb_root *gpa_tree,
+					       struct userspace_mem_region *region)
+{
+	struct rb_node **cur, *parent;
+
+	for (cur = &gpa_tree->rb_node, parent = NULL; *cur; ) {
+		struct userspace_mem_region *cregion;
+
+		cregion = container_of(*cur, typeof(*cregion), gpa_node);
+		parent = *cur;
+		if (region->region.guest_phys_addr <
+		    cregion->region.guest_phys_addr)
+			cur = &(*cur)->rb_left;
+		else {
+			TEST_ASSERT(region->region.guest_phys_addr !=
+				    cregion->region.guest_phys_addr,
+				    "Duplicate GPA in region tree");
+
+			cur = &(*cur)->rb_right;
+		}
+	}
+
+	rb_link_node(&region->gpa_node, parent, cur);
+	rb_insert_color(&region->gpa_node, gpa_tree);
+}
+
+static void vm_userspace_mem_region_hva_insert(struct rb_root *hva_tree,
+					       struct userspace_mem_region *region)
+{
+	struct rb_node **cur, *parent;
+
+	for (cur = &hva_tree->rb_node, parent = NULL; *cur; ) {
+		struct userspace_mem_region *cregion;
+
+		cregion = container_of(*cur, typeof(*cregion), hva_node);
+		parent = *cur;
+		if (region->host_mem < cregion->host_mem)
+			cur = &(*cur)->rb_left;
+		else {
+			TEST_ASSERT(region->host_mem !=
+				    cregion->host_mem,
+				    "Duplicate HVA in region tree");
+
+			cur = &(*cur)->rb_right;
+		}
+	}
+
+	rb_link_node(&region->hva_node, parent, cur);
+	rb_insert_color(&region->hva_node, hva_tree);
+}
+
+
+int __vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				uint64_t gpa, uint64_t size, void *hva)
+{
+	struct kvm_userspace_memory_region region = {
+		.slot = slot,
+		.flags = flags,
+		.guest_phys_addr = gpa,
+		.memory_size = size,
+		.userspace_addr = (uintptr_t)hva,
+	};
+
+	return ioctl(vm->fd, KVM_SET_USER_MEMORY_REGION, &region);
+}
+
+void vm_set_user_memory_region(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+			       uint64_t gpa, uint64_t size, void *hva)
+{
+	int ret = __vm_set_user_memory_region(vm, slot, flags, gpa, size, hva);
+
+	TEST_ASSERT(!ret, "KVM_SET_USER_MEMORY_REGION failed, errno = %d (%s)",
+		    errno, strerror(errno));
+}
+
+#define TEST_REQUIRE_SET_USER_MEMORY_REGION2()			\
+	__TEST_REQUIRE(kvm_has_cap(KVM_CAP_USER_MEMORY2),	\
+		       "KVM selftests now require KVM_SET_USER_MEMORY_REGION2 (introduced in v6.8)")
+
+int __vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				 uint64_t gpa, uint64_t size, void *hva,
+				 uint32_t guest_memfd, uint64_t guest_memfd_offset)
+{
+	struct kvm_userspace_memory_region2 region = {
+		.slot = slot,
+		.flags = flags,
+		.guest_phys_addr = gpa,
+		.memory_size = size,
+		.userspace_addr = (uintptr_t)hva,
+		.guest_memfd = guest_memfd,
+		.guest_memfd_offset = guest_memfd_offset,
+	};
+
+	TEST_REQUIRE_SET_USER_MEMORY_REGION2();
+
+	return ioctl(vm->fd, KVM_SET_USER_MEMORY_REGION2, &region);
+}
+
+void vm_set_user_memory_region2(struct kvm_vm *vm, uint32_t slot, uint32_t flags,
+				uint64_t gpa, uint64_t size, void *hva,
+				uint32_t guest_memfd, uint64_t guest_memfd_offset)
+{
+	int ret = __vm_set_user_memory_region2(vm, slot, flags, gpa, size, hva,
+					       guest_memfd, guest_memfd_offset);
+
+	TEST_ASSERT(!ret, "KVM_SET_USER_MEMORY_REGION2 failed, errno = %d (%s)",
+		    errno, strerror(errno));
+}
+
+
+/* FIXME: This thing needs to be ripped apart and rewritten. */
+void vm_mem_add(struct kvm_vm *vm, enum vm_mem_backing_src_type src_type,
+		uint64_t gpa, uint32_t slot, uint64_t npages, uint32_t flags,
+		int guest_memfd, uint64_t guest_memfd_offset)
+{
+	int ret;
+	struct userspace_mem_region *region;
+	size_t backing_src_pagesz = get_backing_src_pagesz(src_type);
+	size_t mem_size = npages * vm->page_size;
+	size_t alignment;
+
+	TEST_REQUIRE_SET_USER_MEMORY_REGION2();
+
+	TEST_ASSERT(vm_adjust_num_guest_pages(vm->mode, npages) == npages,
+		"Number of guest pages is not compatible with the host. "
+		"Try npages=%d", vm_adjust_num_guest_pages(vm->mode, npages));
+
+	TEST_ASSERT((gpa % vm->page_size) == 0, "Guest physical "
+		"address not on a page boundary.\n"
+		"  gpa: 0x%lx vm->page_size: 0x%x",
+		gpa, vm->page_size);
+	TEST_ASSERT((((gpa >> vm->page_shift) + npages) - 1)
+		<= vm->max_gfn, "Physical range beyond maximum "
+		"supported physical address,\n"
+		"  gpa: 0x%lx npages: 0x%lx\n"
+		"  vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		gpa, npages, vm->max_gfn, vm->page_size);
+
+	/*
+	 * Confirm a mem region with an overlapping address doesn't
+	 * already exist.
+	 */
+	region = (struct userspace_mem_region *) userspace_mem_region_find(
+		vm, gpa, (gpa + npages * vm->page_size) - 1);
+	if (region != NULL)
+		TEST_FAIL("overlapping userspace_mem_region already "
+			"exists\n"
+			"  requested gpa: 0x%lx npages: 0x%lx page_size: 0x%x\n"
+			"  existing gpa: 0x%lx size: 0x%lx",
+			gpa, npages, vm->page_size,
+			(uint64_t) region->region.guest_phys_addr,
+			(uint64_t) region->region.memory_size);
+
+	/* Confirm no region with the requested slot already exists. */
+	hash_for_each_possible(vm->regions.slot_hash, region, slot_node,
+			       slot) {
+		if (region->region.slot != slot)
+			continue;
+
+		TEST_FAIL("A mem region with the requested slot "
+			"already exists.\n"
+			"  requested slot: %u paddr: 0x%lx npages: 0x%lx\n"
+			"  existing slot: %u paddr: 0x%lx size: 0x%lx",
+			slot, gpa, npages, region->region.slot,
+			(uint64_t) region->region.guest_phys_addr,
+			(uint64_t) region->region.memory_size);
+	}
+
+	/* Allocate and initialize new mem region structure. */
+	region = calloc(1, sizeof(*region));
+	TEST_ASSERT(region != NULL, "Insufficient Memory");
+	region->mmap_size = mem_size;
+
+#ifdef __s390x__
+	/* On s390x, the host address must be aligned to 1M (due to PGSTEs) */
+	alignment = 0x100000;
+#else
+	alignment = 1;
+#endif
+
+	/*
+	 * When using THP mmap is not guaranteed to returned a hugepage aligned
+	 * address so we have to pad the mmap. Padding is not needed for HugeTLB
+	 * because mmap will always return an address aligned to the HugeTLB
+	 * page size.
+	 */
+	if (src_type == VM_MEM_SRC_ANONYMOUS_THP)
+		alignment = max(backing_src_pagesz, alignment);
+
+	TEST_ASSERT_EQ(gpa, align_up(gpa, backing_src_pagesz));
+
+	/* Add enough memory to align up if necessary */
+	if (alignment > 1)
+		region->mmap_size += alignment;
+
+	region->fd = -1;
+	if (backing_src_is_shared(src_type))
+		region->fd = kvm_memfd_alloc(region->mmap_size,
+					     src_type == VM_MEM_SRC_SHARED_HUGETLB);
+
+	region->mmap_start = kvm_mmap(region->mmap_size, PROT_READ | PROT_WRITE,
+				      vm_mem_backing_src_alias(src_type)->flag,
+				      region->fd);
+
+	TEST_ASSERT(!is_backing_src_hugetlb(src_type) ||
+		    region->mmap_start == align_ptr_up(region->mmap_start, backing_src_pagesz),
+		    "mmap_start %p is not aligned to HugeTLB page size 0x%lx",
+		    region->mmap_start, backing_src_pagesz);
+
+	/* Align host address */
+	region->host_mem = align_ptr_up(region->mmap_start, alignment);
+
+	/* As needed perform madvise */
+	if ((src_type == VM_MEM_SRC_ANONYMOUS ||
+	     src_type == VM_MEM_SRC_ANONYMOUS_THP) && thp_configured()) {
+		ret = madvise(region->host_mem, mem_size,
+			      src_type == VM_MEM_SRC_ANONYMOUS ? MADV_NOHUGEPAGE : MADV_HUGEPAGE);
+		TEST_ASSERT(ret == 0, "madvise failed, addr: %p length: 0x%lx src_type: %s",
+			    region->host_mem, mem_size,
+			    vm_mem_backing_src_alias(src_type)->name);
+	}
+
+	region->backing_src_type = src_type;
+
+	if (flags & KVM_MEM_GUEST_MEMFD) {
+		if (guest_memfd < 0) {
+			uint32_t guest_memfd_flags = 0;
+			TEST_ASSERT(!guest_memfd_offset,
+				    "Offset must be zero when creating new guest_memfd");
+			guest_memfd = vm_create_guest_memfd(vm, mem_size, guest_memfd_flags);
+		} else {
+			/*
+			 * Install a unique fd for each memslot so that the fd
+			 * can be closed when the region is deleted without
+			 * needing to track if the fd is owned by the framework
+			 * or by the caller.
+			 */
+			guest_memfd = kvm_dup(guest_memfd);
+		}
+
+		region->region.guest_memfd = guest_memfd;
+		region->region.guest_memfd_offset = guest_memfd_offset;
+	} else {
+		region->region.guest_memfd = -1;
+	}
+
+	region->unused_phy_pages = sparsebit_alloc();
+	if (vm_arch_has_protected_memory(vm))
+		region->protected_phy_pages = sparsebit_alloc();
+	sparsebit_set_num(region->unused_phy_pages, gpa >> vm->page_shift, npages);
+	region->region.slot = slot;
+	region->region.flags = flags;
+	region->region.guest_phys_addr = gpa;
+	region->region.memory_size = npages * vm->page_size;
+	region->region.userspace_addr = (uintptr_t) region->host_mem;
+	ret = __vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &region->region);
+	TEST_ASSERT(ret == 0, "KVM_SET_USER_MEMORY_REGION2 IOCTL failed,\n"
+		"  rc: %i errno: %i\n"
+		"  slot: %u flags: 0x%x\n"
+		"  guest_phys_addr: 0x%lx size: 0x%llx guest_memfd: %d",
+		ret, errno, slot, flags, gpa, region->region.memory_size,
+		region->region.guest_memfd);
+
+	/* Add to quick lookup data structures */
+	vm_userspace_mem_region_gpa_insert(&vm->regions.gpa_tree, region);
+	vm_userspace_mem_region_hva_insert(&vm->regions.hva_tree, region);
+	hash_add(vm->regions.slot_hash, &region->slot_node, slot);
+
+	/* If shared memory, create an alias. */
+	if (region->fd >= 0) {
+		region->mmap_alias = kvm_mmap(region->mmap_size,
+					      PROT_READ | PROT_WRITE,
+					      vm_mem_backing_src_alias(src_type)->flag,
+					      region->fd);
+
+		/* Align host alias address */
+		region->host_alias = align_ptr_up(region->mmap_alias, alignment);
+	}
+}
+
+void vm_userspace_mem_region_add(struct kvm_vm *vm,
+				 enum vm_mem_backing_src_type src_type,
+				 uint64_t gpa, uint32_t slot, uint64_t npages,
+				 uint32_t flags)
+{
+	vm_mem_add(vm, src_type, gpa, slot, npages, flags, -1, 0);
+}
+
+/*
+ * Memslot to region
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   memslot - KVM memory slot ID
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Pointer to memory region structure that describe memory region
+ *   using kvm memory slot ID given by memslot.  TEST_ASSERT failure
+ *   on error (e.g. currently no memory region using memslot as a KVM
+ *   memory slot ID).
+ */
+struct userspace_mem_region *
+memslot2region(struct kvm_vm *vm, uint32_t memslot)
+{
+	struct userspace_mem_region *region;
+
+	hash_for_each_possible(vm->regions.slot_hash, region, slot_node,
+			       memslot)
+		if (region->region.slot == memslot)
+			return region;
+
+	fprintf(stderr, "No mem region with the requested slot found,\n"
+		"  requested slot: %u\n", memslot);
+	fputs("---- vm dump ----\n", stderr);
+	vm_dump(stderr, vm, 2);
+	TEST_FAIL("Mem region not found");
+	return NULL;
+}
+
+/*
+ * VM Memory Region Flags Set
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   flags - Starting guest physical address
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Sets the flags of the memory region specified by the value of slot,
+ * to the values given by flags.
+ */
+void vm_mem_region_set_flags(struct kvm_vm *vm, uint32_t slot, uint32_t flags)
+{
+	int ret;
+	struct userspace_mem_region *region;
+
+	region = memslot2region(vm, slot);
+
+	region->region.flags = flags;
+
+	ret = __vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &region->region);
+
+	TEST_ASSERT(ret == 0, "KVM_SET_USER_MEMORY_REGION2 IOCTL failed,\n"
+		"  rc: %i errno: %i slot: %u flags: 0x%x",
+		ret, errno, slot, flags);
+}
+
+void vm_mem_region_reload(struct kvm_vm *vm, uint32_t slot)
+{
+	struct userspace_mem_region *region = memslot2region(vm, slot);
+	struct kvm_userspace_memory_region2 tmp = region->region;
+
+	tmp.memory_size = 0;
+	vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &tmp);
+	vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &region->region);
+}
+
+/*
+ * VM Memory Region Move
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   slot - Slot of the memory region to move
+ *   new_gpa - Starting guest physical address
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Change the gpa of a memory region.
+ */
+void vm_mem_region_move(struct kvm_vm *vm, uint32_t slot, uint64_t new_gpa)
+{
+	struct userspace_mem_region *region;
+	int ret;
+
+	region = memslot2region(vm, slot);
+
+	region->region.guest_phys_addr = new_gpa;
+
+	ret = __vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &region->region);
+
+	TEST_ASSERT(!ret, "KVM_SET_USER_MEMORY_REGION2 failed\n"
+		    "ret: %i errno: %i slot: %u new_gpa: 0x%lx",
+		    ret, errno, slot, new_gpa);
+}
+
+/*
+ * VM Memory Region Delete
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   slot - Slot of the memory region to delete
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Delete a memory region.
+ */
+void vm_mem_region_delete(struct kvm_vm *vm, uint32_t slot)
+{
+	struct userspace_mem_region *region = memslot2region(vm, slot);
+
+	region->region.memory_size = 0;
+	vm_ioctl(vm, KVM_SET_USER_MEMORY_REGION2, &region->region);
+
+	__vm_mem_region_delete(vm, region);
+}
+
+void vm_guest_mem_fallocate(struct kvm_vm *vm, uint64_t base, uint64_t size,
+			    bool punch_hole)
+{
+	const int mode = FALLOC_FL_KEEP_SIZE | (punch_hole ? FALLOC_FL_PUNCH_HOLE : 0);
+	struct userspace_mem_region *region;
+	uint64_t end = base + size;
+	uint64_t gpa, len;
+	off_t fd_offset;
+	int ret;
+
+	for (gpa = base; gpa < end; gpa += len) {
+		uint64_t offset;
+
+		region = userspace_mem_region_find(vm, gpa, gpa);
+		TEST_ASSERT(region && region->region.flags & KVM_MEM_GUEST_MEMFD,
+			    "Private memory region not found for GPA 0x%lx", gpa);
+
+		offset = gpa - region->region.guest_phys_addr;
+		fd_offset = region->region.guest_memfd_offset + offset;
+		len = min_t(uint64_t, end - gpa, region->region.memory_size - offset);
+
+		ret = fallocate(region->region.guest_memfd, mode, fd_offset, len);
+		TEST_ASSERT(!ret, "fallocate() failed to %s at %lx (len = %lu), fd = %d, mode = %x, offset = %lx",
+			    punch_hole ? "punch hole" : "allocate", gpa, len,
+			    region->region.guest_memfd, mode, fd_offset);
+	}
+}
+
+/* Returns the size of a vCPU's kvm_run structure. */
+static size_t vcpu_mmap_sz(void)
+{
+	int dev_fd, ret;
+
+	dev_fd = open_kvm_dev_path_or_exit();
+
+	ret = ioctl(dev_fd, KVM_GET_VCPU_MMAP_SIZE, NULL);
+	TEST_ASSERT(ret >= 0 && ret >= sizeof(struct kvm_run),
+		    KVM_IOCTL_ERROR(KVM_GET_VCPU_MMAP_SIZE, ret));
+
+	close(dev_fd);
+
+	return ret;
+}
+
+static bool vcpu_exists(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	struct kvm_vcpu *vcpu;
+
+	list_for_each_entry(vcpu, &vm->vcpus, list) {
+		if (vcpu->id == vcpu_id)
+			return true;
+	}
+
+	return false;
+}
+
+/*
+ * Adds a virtual CPU to the VM specified by vm with the ID given by vcpu_id.
+ * No additional vCPU setup is done.  Returns the vCPU.
+ */
+struct kvm_vcpu *__vm_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	struct kvm_vcpu *vcpu;
+
+	/* Confirm a vcpu with the specified id doesn't already exist. */
+	TEST_ASSERT(!vcpu_exists(vm, vcpu_id), "vCPU%d already exists", vcpu_id);
+
+	/* Allocate and initialize new vcpu structure. */
+	vcpu = calloc(1, sizeof(*vcpu));
+	TEST_ASSERT(vcpu != NULL, "Insufficient Memory");
+
+	vcpu->vm = vm;
+	vcpu->id = vcpu_id;
+	vcpu->fd = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)(unsigned long)vcpu_id);
+	TEST_ASSERT_VM_VCPU_IOCTL(vcpu->fd >= 0, KVM_CREATE_VCPU, vcpu->fd, vm);
+
+	TEST_ASSERT(vcpu_mmap_sz() >= sizeof(*vcpu->run), "vcpu mmap size "
+		"smaller than expected, vcpu_mmap_sz: %zi expected_min: %zi",
+		vcpu_mmap_sz(), sizeof(*vcpu->run));
+	vcpu->run = kvm_mmap(vcpu_mmap_sz(), PROT_READ | PROT_WRITE,
+			     MAP_SHARED, vcpu->fd);
+
+	if (kvm_has_cap(KVM_CAP_BINARY_STATS_FD))
+		vcpu->stats.fd = vcpu_get_stats_fd(vcpu);
+	else
+		vcpu->stats.fd = -1;
+
+	/* Add to linked-list of VCPUs. */
+	list_add(&vcpu->list, &vm->vcpus);
+
+	return vcpu;
+}
+
+/*
+ * VM Virtual Address Unused Gap
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   sz - Size (bytes)
+ *   vaddr_min - Minimum Virtual Address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Lowest virtual address at or below vaddr_min, with at least
+ *   sz unused bytes.  TEST_ASSERT failure if no area of at least
+ *   size sz is available.
+ *
+ * Within the VM specified by vm, locates the lowest starting virtual
+ * address >= vaddr_min, that has at least sz unallocated bytes.  A
+ * TEST_ASSERT failure occurs for invalid input or no area of at least
+ * sz unallocated bytes >= vaddr_min is available.
+ */
+vm_vaddr_t vm_vaddr_unused_gap(struct kvm_vm *vm, size_t sz,
+			       vm_vaddr_t vaddr_min)
+{
+	uint64_t pages = (sz + vm->page_size - 1) >> vm->page_shift;
+
+	/* Determine lowest permitted virtual page index. */
+	uint64_t pgidx_start = (vaddr_min + vm->page_size - 1) >> vm->page_shift;
+	if ((pgidx_start * vm->page_size) < vaddr_min)
+		goto no_va_found;
+
+	/* Loop over section with enough valid virtual page indexes. */
+	if (!sparsebit_is_set_num(vm->vpages_valid,
+		pgidx_start, pages))
+		pgidx_start = sparsebit_next_set_num(vm->vpages_valid,
+			pgidx_start, pages);
+	do {
+		/*
+		 * Are there enough unused virtual pages available at
+		 * the currently proposed starting virtual page index.
+		 * If not, adjust proposed starting index to next
+		 * possible.
+		 */
+		if (sparsebit_is_clear_num(vm->vpages_mapped,
+			pgidx_start, pages))
+			goto va_found;
+		pgidx_start = sparsebit_next_clear_num(vm->vpages_mapped,
+			pgidx_start, pages);
+		if (pgidx_start == 0)
+			goto no_va_found;
+
+		/*
+		 * If needed, adjust proposed starting virtual address,
+		 * to next range of valid virtual addresses.
+		 */
+		if (!sparsebit_is_set_num(vm->vpages_valid,
+			pgidx_start, pages)) {
+			pgidx_start = sparsebit_next_set_num(
+				vm->vpages_valid, pgidx_start, pages);
+			if (pgidx_start == 0)
+				goto no_va_found;
+		}
+	} while (pgidx_start != 0);
+
+no_va_found:
+	TEST_FAIL("No vaddr of specified pages available, pages: 0x%lx", pages);
+
+	/* NOT REACHED */
+	return -1;
+
+va_found:
+	TEST_ASSERT(sparsebit_is_set_num(vm->vpages_valid,
+		pgidx_start, pages),
+		"Unexpected, invalid virtual page index range,\n"
+		"  pgidx_start: 0x%lx\n"
+		"  pages: 0x%lx",
+		pgidx_start, pages);
+	TEST_ASSERT(sparsebit_is_clear_num(vm->vpages_mapped,
+		pgidx_start, pages),
+		"Unexpected, pages already mapped,\n"
+		"  pgidx_start: 0x%lx\n"
+		"  pages: 0x%lx",
+		pgidx_start, pages);
+
+	return pgidx_start * vm->page_size;
+}
+
+static vm_vaddr_t ____vm_vaddr_alloc(struct kvm_vm *vm, size_t sz,
+				     vm_vaddr_t vaddr_min,
+				     enum kvm_mem_region_type type,
+				     bool protected)
+{
+	uint64_t pages = (sz >> vm->page_shift) + ((sz % vm->page_size) != 0);
+
+	virt_pgd_alloc(vm);
+	vm_paddr_t paddr = __vm_phy_pages_alloc(vm, pages,
+						KVM_UTIL_MIN_PFN * vm->page_size,
+						vm->memslots[type], protected);
+
+	/*
+	 * Find an unused range of virtual page addresses of at least
+	 * pages in length.
+	 */
+	vm_vaddr_t vaddr_start = vm_vaddr_unused_gap(vm, sz, vaddr_min);
+
+	/* Map the virtual pages. */
+	for (vm_vaddr_t vaddr = vaddr_start; pages > 0;
+		pages--, vaddr += vm->page_size, paddr += vm->page_size) {
+
+		virt_pg_map(vm, vaddr, paddr);
+	}
+
+	return vaddr_start;
+}
+
+vm_vaddr_t __vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min,
+			    enum kvm_mem_region_type type)
+{
+	return ____vm_vaddr_alloc(vm, sz, vaddr_min, type,
+				  vm_arch_has_protected_memory(vm));
+}
+
+vm_vaddr_t vm_vaddr_alloc_shared(struct kvm_vm *vm, size_t sz,
+				 vm_vaddr_t vaddr_min,
+				 enum kvm_mem_region_type type)
+{
+	return ____vm_vaddr_alloc(vm, sz, vaddr_min, type, false);
+}
+
+/*
+ * VM Virtual Address Allocate
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   sz - Size in bytes
+ *   vaddr_min - Minimum starting virtual address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Starting guest virtual address
+ *
+ * Allocates at least sz bytes within the virtual address space of the vm
+ * given by vm.  The allocated bytes are mapped to a virtual address >=
+ * the address given by vaddr_min.  Note that each allocation uses a
+ * a unique set of pages, with the minimum real allocation being at least
+ * a page. The allocated physical space comes from the TEST_DATA memory region.
+ */
+vm_vaddr_t vm_vaddr_alloc(struct kvm_vm *vm, size_t sz, vm_vaddr_t vaddr_min)
+{
+	return __vm_vaddr_alloc(vm, sz, vaddr_min, MEM_REGION_TEST_DATA);
+}
+
+/*
+ * VM Virtual Address Allocate Pages
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Starting guest virtual address
+ *
+ * Allocates at least N system pages worth of bytes within the virtual address
+ * space of the vm.
+ */
+vm_vaddr_t vm_vaddr_alloc_pages(struct kvm_vm *vm, int nr_pages)
+{
+	return vm_vaddr_alloc(vm, nr_pages * getpagesize(), KVM_UTIL_MIN_VADDR);
+}
+
+vm_vaddr_t __vm_vaddr_alloc_page(struct kvm_vm *vm, enum kvm_mem_region_type type)
+{
+	return __vm_vaddr_alloc(vm, getpagesize(), KVM_UTIL_MIN_VADDR, type);
+}
+
+/*
+ * VM Virtual Address Allocate Page
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Starting guest virtual address
+ *
+ * Allocates at least one system page worth of bytes within the virtual address
+ * space of the vm.
+ */
+vm_vaddr_t vm_vaddr_alloc_page(struct kvm_vm *vm)
+{
+	return vm_vaddr_alloc_pages(vm, 1);
+}
+
+/*
+ * Map a range of VM virtual address to the VM's physical address
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   vaddr - Virtuall address to map
+ *   paddr - VM Physical Address
+ *   npages - The number of pages to map
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Within the VM given by @vm, creates a virtual translation for
+ * @npages starting at @vaddr to the page range starting at @paddr.
+ */
+void virt_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
+	      unsigned int npages)
+{
+	size_t page_size = vm->page_size;
+	size_t size = npages * page_size;
+
+	TEST_ASSERT(vaddr + size > vaddr, "Vaddr overflow");
+	TEST_ASSERT(paddr + size > paddr, "Paddr overflow");
+
+	while (npages--) {
+		virt_pg_map(vm, vaddr, paddr);
+
+		vaddr += page_size;
+		paddr += page_size;
+	}
+}
+
+/*
+ * Address VM Physical to Host Virtual
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   gpa - VM physical address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent host virtual address
+ *
+ * Locates the memory region containing the VM physical address given
+ * by gpa, within the VM given by vm.  When found, the host virtual
+ * address providing the memory to the vm physical address is returned.
+ * A TEST_ASSERT failure occurs if no region containing gpa exists.
+ */
+void *addr_gpa2hva(struct kvm_vm *vm, vm_paddr_t gpa)
+{
+	struct userspace_mem_region *region;
+
+	gpa = vm_untag_gpa(vm, gpa);
+
+	region = userspace_mem_region_find(vm, gpa, gpa);
+	if (!region) {
+		TEST_FAIL("No vm physical memory at 0x%lx", gpa);
+		return NULL;
+	}
+
+	return (void *)((uintptr_t)region->host_mem
+		+ (gpa - region->region.guest_phys_addr));
+}
+
+/*
+ * Address Host Virtual to VM Physical
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   hva - Host virtual address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent VM physical address
+ *
+ * Locates the memory region containing the host virtual address given
+ * by hva, within the VM given by vm.  When found, the equivalent
+ * VM physical address is returned. A TEST_ASSERT failure occurs if no
+ * region containing hva exists.
+ */
+vm_paddr_t addr_hva2gpa(struct kvm_vm *vm, void *hva)
+{
+	struct rb_node *node;
+
+	for (node = vm->regions.hva_tree.rb_node; node; ) {
+		struct userspace_mem_region *region =
+			container_of(node, struct userspace_mem_region, hva_node);
+
+		if (hva >= region->host_mem) {
+			if (hva <= (region->host_mem
+				+ region->region.memory_size - 1))
+				return (vm_paddr_t)((uintptr_t)
+					region->region.guest_phys_addr
+					+ (hva - (uintptr_t)region->host_mem));
+
+			node = node->rb_right;
+		} else
+			node = node->rb_left;
+	}
+
+	TEST_FAIL("No mapping to a guest physical address, hva: %p", hva);
+	return -1;
+}
+
+/*
+ * Address VM physical to Host Virtual *alias*.
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   gpa - VM physical address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent address within the host virtual *alias* area, or NULL
+ *   (without failing the test) if the guest memory is not shared (so
+ *   no alias exists).
+ *
+ * Create a writable, shared virtual=>physical alias for the specific GPA.
+ * The primary use case is to allow the host selftest to manipulate guest
+ * memory without mapping said memory in the guest's address space. And, for
+ * userfaultfd-based demand paging, to do so without triggering userfaults.
+ */
+void *addr_gpa2alias(struct kvm_vm *vm, vm_paddr_t gpa)
+{
+	struct userspace_mem_region *region;
+	uintptr_t offset;
+
+	region = userspace_mem_region_find(vm, gpa, gpa);
+	if (!region)
+		return NULL;
+
+	if (!region->host_alias)
+		return NULL;
+
+	offset = gpa - region->region.guest_phys_addr;
+	return (void *) ((uintptr_t) region->host_alias + offset);
+}
+
+/* Create an interrupt controller chip for the specified VM. */
+void vm_create_irqchip(struct kvm_vm *vm)
+{
+	int r;
+
+	/*
+	 * Allocate a fully in-kernel IRQ chip by default, but fall back to a
+	 * split model (x86 only) if that fails (KVM x86 allows compiling out
+	 * support for KVM_CREATE_IRQCHIP).
+	 */
+	r = __vm_ioctl(vm, KVM_CREATE_IRQCHIP, NULL);
+	if (r && errno == ENOTTY && kvm_has_cap(KVM_CAP_SPLIT_IRQCHIP))
+		vm_enable_cap(vm, KVM_CAP_SPLIT_IRQCHIP, 24);
+	else
+		TEST_ASSERT_VM_VCPU_IOCTL(!r, KVM_CREATE_IRQCHIP, r, vm);
+
+	vm->has_irqchip = true;
+}
+
+int _vcpu_run(struct kvm_vcpu *vcpu)
+{
+	int rc;
+
+	do {
+		rc = __vcpu_run(vcpu);
+	} while (rc == -1 && errno == EINTR);
+
+	if (!rc)
+		assert_on_unhandled_exception(vcpu);
+
+	return rc;
+}
+
+/*
+ * Invoke KVM_RUN on a vCPU until KVM returns something other than -EINTR.
+ * Assert if the KVM returns an error (other than -EINTR).
+ */
+void vcpu_run(struct kvm_vcpu *vcpu)
+{
+	int ret = _vcpu_run(vcpu);
+
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_RUN, ret));
+}
+
+void vcpu_run_complete_io(struct kvm_vcpu *vcpu)
+{
+	int ret;
+
+	vcpu->run->immediate_exit = 1;
+	ret = __vcpu_run(vcpu);
+	vcpu->run->immediate_exit = 0;
+
+	TEST_ASSERT(ret == -1 && errno == EINTR,
+		    "KVM_RUN IOCTL didn't exit immediately, rc: %i, errno: %i",
+		    ret, errno);
+}
+
+/*
+ * Get the list of guest registers which are supported for
+ * KVM_GET_ONE_REG/KVM_SET_ONE_REG ioctls.  Returns a kvm_reg_list pointer,
+ * it is the caller's responsibility to free the list.
+ */
+struct kvm_reg_list *vcpu_get_reg_list(struct kvm_vcpu *vcpu)
+{
+	struct kvm_reg_list reg_list_n = { .n = 0 }, *reg_list;
+	int ret;
+
+	ret = __vcpu_ioctl(vcpu, KVM_GET_REG_LIST, &reg_list_n);
+	TEST_ASSERT(ret == -1 && errno == E2BIG, "KVM_GET_REG_LIST n=0");
+
+	reg_list = calloc(1, sizeof(*reg_list) + reg_list_n.n * sizeof(__u64));
+	reg_list->n = reg_list_n.n;
+	vcpu_ioctl(vcpu, KVM_GET_REG_LIST, reg_list);
+	return reg_list;
+}
+
+void *vcpu_map_dirty_ring(struct kvm_vcpu *vcpu)
+{
+	uint32_t page_size = getpagesize();
+	uint32_t size = vcpu->vm->dirty_ring_size;
+
+	TEST_ASSERT(size > 0, "Should enable dirty ring first");
+
+	if (!vcpu->dirty_gfns) {
+		void *addr;
+
+		addr = mmap(NULL, size, PROT_READ, MAP_PRIVATE, vcpu->fd,
+			    page_size * KVM_DIRTY_LOG_PAGE_OFFSET);
+		TEST_ASSERT(addr == MAP_FAILED, "Dirty ring mapped private");
+
+		addr = mmap(NULL, size, PROT_READ | PROT_EXEC, MAP_PRIVATE, vcpu->fd,
+			    page_size * KVM_DIRTY_LOG_PAGE_OFFSET);
+		TEST_ASSERT(addr == MAP_FAILED, "Dirty ring mapped exec");
+
+		addr = __kvm_mmap(size, PROT_READ | PROT_WRITE, MAP_SHARED, vcpu->fd,
+				  page_size * KVM_DIRTY_LOG_PAGE_OFFSET);
+
+		vcpu->dirty_gfns = addr;
+		vcpu->dirty_gfns_count = size / sizeof(struct kvm_dirty_gfn);
+	}
+
+	return vcpu->dirty_gfns;
+}
+
+/*
+ * Device Ioctl
+ */
+
+int __kvm_has_device_attr(int dev_fd, uint32_t group, uint64_t attr)
+{
+	struct kvm_device_attr attribute = {
+		.group = group,
+		.attr = attr,
+		.flags = 0,
+	};
+
+	return ioctl(dev_fd, KVM_HAS_DEVICE_ATTR, &attribute);
+}
+
+int __kvm_test_create_device(struct kvm_vm *vm, uint64_t type)
+{
+	struct kvm_create_device create_dev = {
+		.type = type,
+		.flags = KVM_CREATE_DEVICE_TEST,
+	};
+
+	return __vm_ioctl(vm, KVM_CREATE_DEVICE, &create_dev);
+}
+
+int __kvm_create_device(struct kvm_vm *vm, uint64_t type)
+{
+	struct kvm_create_device create_dev = {
+		.type = type,
+		.fd = -1,
+		.flags = 0,
+	};
+	int err;
+
+	err = __vm_ioctl(vm, KVM_CREATE_DEVICE, &create_dev);
+	TEST_ASSERT(err <= 0, "KVM_CREATE_DEVICE shouldn't return a positive value");
+	return err ? : create_dev.fd;
+}
+
+int __kvm_device_attr_get(int dev_fd, uint32_t group, uint64_t attr, void *val)
+{
+	struct kvm_device_attr kvmattr = {
+		.group = group,
+		.attr = attr,
+		.flags = 0,
+		.addr = (uintptr_t)val,
+	};
+
+	return __kvm_ioctl(dev_fd, KVM_GET_DEVICE_ATTR, &kvmattr);
+}
+
+int __kvm_device_attr_set(int dev_fd, uint32_t group, uint64_t attr, void *val)
+{
+	struct kvm_device_attr kvmattr = {
+		.group = group,
+		.attr = attr,
+		.flags = 0,
+		.addr = (uintptr_t)val,
+	};
+
+	return __kvm_ioctl(dev_fd, KVM_SET_DEVICE_ATTR, &kvmattr);
+}
+
+/*
+ * IRQ related functions.
+ */
+
+int _kvm_irq_line(struct kvm_vm *vm, uint32_t irq, int level)
+{
+	struct kvm_irq_level irq_level = {
+		.irq    = irq,
+		.level  = level,
+	};
+
+	return __vm_ioctl(vm, KVM_IRQ_LINE, &irq_level);
+}
+
+void kvm_irq_line(struct kvm_vm *vm, uint32_t irq, int level)
+{
+	int ret = _kvm_irq_line(vm, irq, level);
+
+	TEST_ASSERT(ret >= 0, KVM_IOCTL_ERROR(KVM_IRQ_LINE, ret));
+}
+
+struct kvm_irq_routing *kvm_gsi_routing_create(void)
+{
+	struct kvm_irq_routing *routing;
+	size_t size;
+
+	size = sizeof(struct kvm_irq_routing);
+	/* Allocate space for the max number of entries: this wastes 196 KBs. */
+	size += KVM_MAX_IRQ_ROUTES * sizeof(struct kvm_irq_routing_entry);
+	routing = calloc(1, size);
+	assert(routing);
+
+	return routing;
+}
+
+void kvm_gsi_routing_irqchip_add(struct kvm_irq_routing *routing,
+		uint32_t gsi, uint32_t pin)
+{
+	int i;
+
+	assert(routing);
+	assert(routing->nr < KVM_MAX_IRQ_ROUTES);
+
+	i = routing->nr;
+	routing->entries[i].gsi = gsi;
+	routing->entries[i].type = KVM_IRQ_ROUTING_IRQCHIP;
+	routing->entries[i].flags = 0;
+	routing->entries[i].u.irqchip.irqchip = 0;
+	routing->entries[i].u.irqchip.pin = pin;
+	routing->nr++;
+}
+
+int _kvm_gsi_routing_write(struct kvm_vm *vm, struct kvm_irq_routing *routing)
+{
+	int ret;
+
+	assert(routing);
+	ret = __vm_ioctl(vm, KVM_SET_GSI_ROUTING, routing);
+	free(routing);
+
+	return ret;
+}
+
+void kvm_gsi_routing_write(struct kvm_vm *vm, struct kvm_irq_routing *routing)
+{
+	int ret;
+
+	ret = _kvm_gsi_routing_write(vm, routing);
+	TEST_ASSERT(!ret, KVM_IOCTL_ERROR(KVM_SET_GSI_ROUTING, ret));
+}
+
+/*
+ * VM Dump
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   indent - Left margin indent amount
+ *
+ * Output Args:
+ *   stream - Output FILE stream
+ *
+ * Return: None
+ *
+ * Dumps the current state of the VM given by vm, to the FILE stream
+ * given by stream.
+ */
+void vm_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	int ctr;
+	struct userspace_mem_region *region;
+	struct kvm_vcpu *vcpu;
+
+	fprintf(stream, "%*smode: 0x%x\n", indent, "", vm->mode);
+	fprintf(stream, "%*sfd: %i\n", indent, "", vm->fd);
+	fprintf(stream, "%*spage_size: 0x%x\n", indent, "", vm->page_size);
+	fprintf(stream, "%*sMem Regions:\n", indent, "");
+	hash_for_each(vm->regions.slot_hash, ctr, region, slot_node) {
+		fprintf(stream, "%*sguest_phys: 0x%lx size: 0x%lx "
+			"host_virt: %p\n", indent + 2, "",
+			(uint64_t) region->region.guest_phys_addr,
+			(uint64_t) region->region.memory_size,
+			region->host_mem);
+		fprintf(stream, "%*sunused_phy_pages: ", indent + 2, "");
+		sparsebit_dump(stream, region->unused_phy_pages, 0);
+		if (region->protected_phy_pages) {
+			fprintf(stream, "%*sprotected_phy_pages: ", indent + 2, "");
+			sparsebit_dump(stream, region->protected_phy_pages, 0);
+		}
+	}
+	fprintf(stream, "%*sMapped Virtual Pages:\n", indent, "");
+	sparsebit_dump(stream, vm->vpages_mapped, indent + 2);
+	fprintf(stream, "%*spgd_created: %u\n", indent, "",
+		vm->pgd_created);
+	if (vm->pgd_created) {
+		fprintf(stream, "%*sVirtual Translation Tables:\n",
+			indent + 2, "");
+		virt_dump(stream, vm, indent + 4);
+	}
+	fprintf(stream, "%*sVCPUs:\n", indent, "");
+
+	list_for_each_entry(vcpu, &vm->vcpus, list)
+		vcpu_dump(stream, vcpu, indent + 2);
+}
+
+#define KVM_EXIT_STRING(x) {KVM_EXIT_##x, #x}
+
+/* Known KVM exit reasons */
+static struct exit_reason {
+	unsigned int reason;
+	const char *name;
+} exit_reasons_known[] = {
+	KVM_EXIT_STRING(UNKNOWN),
+	KVM_EXIT_STRING(EXCEPTION),
+	KVM_EXIT_STRING(IO),
+	KVM_EXIT_STRING(HYPERCALL),
+	KVM_EXIT_STRING(DEBUG),
+	KVM_EXIT_STRING(HLT),
+	KVM_EXIT_STRING(MMIO),
+	KVM_EXIT_STRING(IRQ_WINDOW_OPEN),
+	KVM_EXIT_STRING(SHUTDOWN),
+	KVM_EXIT_STRING(FAIL_ENTRY),
+	KVM_EXIT_STRING(INTR),
+	KVM_EXIT_STRING(SET_TPR),
+	KVM_EXIT_STRING(TPR_ACCESS),
+	KVM_EXIT_STRING(S390_SIEIC),
+	KVM_EXIT_STRING(S390_RESET),
+	KVM_EXIT_STRING(DCR),
+	KVM_EXIT_STRING(NMI),
+	KVM_EXIT_STRING(INTERNAL_ERROR),
+	KVM_EXIT_STRING(OSI),
+	KVM_EXIT_STRING(PAPR_HCALL),
+	KVM_EXIT_STRING(S390_UCONTROL),
+	KVM_EXIT_STRING(WATCHDOG),
+	KVM_EXIT_STRING(S390_TSCH),
+	KVM_EXIT_STRING(EPR),
+	KVM_EXIT_STRING(SYSTEM_EVENT),
+	KVM_EXIT_STRING(S390_STSI),
+	KVM_EXIT_STRING(IOAPIC_EOI),
+	KVM_EXIT_STRING(HYPERV),
+	KVM_EXIT_STRING(ARM_NISV),
+	KVM_EXIT_STRING(X86_RDMSR),
+	KVM_EXIT_STRING(X86_WRMSR),
+	KVM_EXIT_STRING(DIRTY_RING_FULL),
+	KVM_EXIT_STRING(AP_RESET_HOLD),
+	KVM_EXIT_STRING(X86_BUS_LOCK),
+	KVM_EXIT_STRING(XEN),
+	KVM_EXIT_STRING(RISCV_SBI),
+	KVM_EXIT_STRING(RISCV_CSR),
+	KVM_EXIT_STRING(NOTIFY),
+	KVM_EXIT_STRING(LOONGARCH_IOCSR),
+	KVM_EXIT_STRING(MEMORY_FAULT),
+	KVM_EXIT_STRING(ARM_SEA),
+};
+
+/*
+ * Exit Reason String
+ *
+ * Input Args:
+ *   exit_reason - Exit reason
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Constant string pointer describing the exit reason.
+ *
+ * Locates and returns a constant string that describes the KVM exit
+ * reason given by exit_reason.  If no such string is found, a constant
+ * string of "Unknown" is returned.
+ */
+const char *exit_reason_str(unsigned int exit_reason)
+{
+	unsigned int n1;
+
+	for (n1 = 0; n1 < ARRAY_SIZE(exit_reasons_known); n1++) {
+		if (exit_reason == exit_reasons_known[n1].reason)
+			return exit_reasons_known[n1].name;
+	}
+
+	return "Unknown";
+}
+
+/*
+ * Physical Contiguous Page Allocator
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   num - number of pages
+ *   paddr_min - Physical address minimum
+ *   memslot - Memory region to allocate page from
+ *   protected - True if the pages will be used as protected/private memory
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Starting physical address
+ *
+ * Within the VM specified by vm, locates a range of available physical
+ * pages at or above paddr_min. If found, the pages are marked as in use
+ * and their base address is returned. A TEST_ASSERT failure occurs if
+ * not enough pages are available at or above paddr_min.
+ */
+vm_paddr_t __vm_phy_pages_alloc(struct kvm_vm *vm, size_t num,
+				vm_paddr_t paddr_min, uint32_t memslot,
+				bool protected)
+{
+	struct userspace_mem_region *region;
+	sparsebit_idx_t pg, base;
+
+	TEST_ASSERT(num > 0, "Must allocate at least one page");
+
+	TEST_ASSERT((paddr_min % vm->page_size) == 0, "Min physical address "
+		"not divisible by page size.\n"
+		"  paddr_min: 0x%lx page_size: 0x%x",
+		paddr_min, vm->page_size);
+
+	region = memslot2region(vm, memslot);
+	TEST_ASSERT(!protected || region->protected_phy_pages,
+		    "Region doesn't support protected memory");
+
+	base = pg = paddr_min >> vm->page_shift;
+	do {
+		for (; pg < base + num; ++pg) {
+			if (!sparsebit_is_set(region->unused_phy_pages, pg)) {
+				base = pg = sparsebit_next_set(region->unused_phy_pages, pg);
+				break;
+			}
+		}
+	} while (pg && pg != base + num);
+
+	if (pg == 0) {
+		fprintf(stderr, "No guest physical page available, "
+			"paddr_min: 0x%lx page_size: 0x%x memslot: %u\n",
+			paddr_min, vm->page_size, memslot);
+		fputs("---- vm dump ----\n", stderr);
+		vm_dump(stderr, vm, 2);
+		abort();
+	}
+
+	for (pg = base; pg < base + num; ++pg) {
+		sparsebit_clear(region->unused_phy_pages, pg);
+		if (protected)
+			sparsebit_set(region->protected_phy_pages, pg);
+	}
+
+	return base * vm->page_size;
+}
+
+vm_paddr_t vm_phy_page_alloc(struct kvm_vm *vm, vm_paddr_t paddr_min,
+			     uint32_t memslot)
+{
+	return vm_phy_pages_alloc(vm, 1, paddr_min, memslot);
+}
+
+vm_paddr_t vm_alloc_page_table(struct kvm_vm *vm)
+{
+	return vm_phy_page_alloc(vm, KVM_GUEST_PAGE_TABLE_MIN_PADDR,
+				 vm->memslots[MEM_REGION_PT]);
+}
+
+/*
+ * Address Guest Virtual to Host Virtual
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   gva - VM virtual address
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   Equivalent host virtual address
+ */
+void *addr_gva2hva(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	return addr_gpa2hva(vm, addr_gva2gpa(vm, gva));
+}
+
+unsigned long __weak vm_compute_max_gfn(struct kvm_vm *vm)
+{
+	return ((1ULL << vm->pa_bits) >> vm->page_shift) - 1;
+}
+
+static unsigned int vm_calc_num_pages(unsigned int num_pages,
+				      unsigned int page_shift,
+				      unsigned int new_page_shift,
+				      bool ceil)
+{
+	unsigned int n = 1 << (new_page_shift - page_shift);
+
+	if (page_shift >= new_page_shift)
+		return num_pages * (1 << (page_shift - new_page_shift));
+
+	return num_pages / n + !!(ceil && num_pages % n);
+}
+
+static inline int getpageshift(void)
+{
+	return __builtin_ffs(getpagesize()) - 1;
+}
+
+unsigned int
+vm_num_host_pages(enum vm_guest_mode mode, unsigned int num_guest_pages)
+{
+	return vm_calc_num_pages(num_guest_pages,
+				 vm_guest_mode_params[mode].page_shift,
+				 getpageshift(), true);
+}
+
+unsigned int
+vm_num_guest_pages(enum vm_guest_mode mode, unsigned int num_host_pages)
+{
+	return vm_calc_num_pages(num_host_pages, getpageshift(),
+				 vm_guest_mode_params[mode].page_shift, false);
+}
+
+unsigned int vm_calc_num_guest_pages(enum vm_guest_mode mode, size_t size)
+{
+	unsigned int n;
+	n = DIV_ROUND_UP(size, vm_guest_mode_params[mode].page_size);
+	return vm_adjust_num_guest_pages(mode, n);
+}
+
+/*
+ * Read binary stats descriptors
+ *
+ * Input Args:
+ *   stats_fd - the file descriptor for the binary stats file from which to read
+ *   header - the binary stats metadata header corresponding to the given FD
+ *
+ * Output Args: None
+ *
+ * Return:
+ *   A pointer to a newly allocated series of stat descriptors.
+ *   Caller is responsible for freeing the returned kvm_stats_desc.
+ *
+ * Read the stats descriptors from the binary stats interface.
+ */
+struct kvm_stats_desc *read_stats_descriptors(int stats_fd,
+					      struct kvm_stats_header *header)
+{
+	struct kvm_stats_desc *stats_desc;
+	ssize_t desc_size, total_size, ret;
+
+	desc_size = get_stats_descriptor_size(header);
+	total_size = header->num_desc * desc_size;
+
+	stats_desc = calloc(header->num_desc, desc_size);
+	TEST_ASSERT(stats_desc, "Allocate memory for stats descriptors");
+
+	ret = pread(stats_fd, stats_desc, total_size, header->desc_offset);
+	TEST_ASSERT(ret == total_size, "Read KVM stats descriptors");
+
+	return stats_desc;
+}
+
+/*
+ * Read stat data for a particular stat
+ *
+ * Input Args:
+ *   stats_fd - the file descriptor for the binary stats file from which to read
+ *   header - the binary stats metadata header corresponding to the given FD
+ *   desc - the binary stat metadata for the particular stat to be read
+ *   max_elements - the maximum number of 8-byte values to read into data
+ *
+ * Output Args:
+ *   data - the buffer into which stat data should be read
+ *
+ * Read the data values of a specified stat from the binary stats interface.
+ */
+void read_stat_data(int stats_fd, struct kvm_stats_header *header,
+		    struct kvm_stats_desc *desc, uint64_t *data,
+		    size_t max_elements)
+{
+	size_t nr_elements = min_t(ssize_t, desc->size, max_elements);
+	size_t size = nr_elements * sizeof(*data);
+	ssize_t ret;
+
+	TEST_ASSERT(desc->size, "No elements in stat '%s'", desc->name);
+	TEST_ASSERT(max_elements, "Zero elements requested for stat '%s'", desc->name);
+
+	ret = pread(stats_fd, data, size,
+		    header->data_offset + desc->offset);
+
+	TEST_ASSERT(ret >= 0, "pread() failed on stat '%s', errno: %i (%s)",
+		    desc->name, errno, strerror(errno));
+	TEST_ASSERT(ret == size,
+		    "pread() on stat '%s' read %ld bytes, wanted %lu bytes",
+		    desc->name, size, ret);
+}
+
+void kvm_get_stat(struct kvm_binary_stats *stats, const char *name,
+		  uint64_t *data, size_t max_elements)
+{
+	struct kvm_stats_desc *desc;
+	size_t size_desc;
+	int i;
+
+	if (!stats->desc) {
+		read_stats_header(stats->fd, &stats->header);
+		stats->desc = read_stats_descriptors(stats->fd, &stats->header);
+	}
+
+	size_desc = get_stats_descriptor_size(&stats->header);
+
+	for (i = 0; i < stats->header.num_desc; ++i) {
+		desc = (void *)stats->desc + (i * size_desc);
+
+		if (strcmp(desc->name, name))
+			continue;
+
+		read_stat_data(stats->fd, &stats->header, desc, data, max_elements);
+		return;
+	}
+
+	TEST_FAIL("Unable to find stat '%s'", name);
+}
+
+__weak void kvm_arch_vm_post_create(struct kvm_vm *vm, unsigned int nr_vcpus)
+{
+}
+
+__weak void kvm_arch_vm_finalize_vcpus(struct kvm_vm *vm)
+{
+}
+
+__weak void kvm_arch_vm_release(struct kvm_vm *vm)
+{
+}
+
+__weak void kvm_selftest_arch_init(void)
+{
+}
+
+static void report_unexpected_signal(int signum)
+{
+#define KVM_CASE_SIGNUM(sig)					\
+	case sig: TEST_FAIL("Unexpected " #sig " (%d)\n", signum)
+
+	switch (signum) {
+	KVM_CASE_SIGNUM(SIGBUS);
+	KVM_CASE_SIGNUM(SIGSEGV);
+	KVM_CASE_SIGNUM(SIGILL);
+	KVM_CASE_SIGNUM(SIGFPE);
+	default:
+		TEST_FAIL("Unexpected signal %d\n", signum);
+	}
+}
+
+void __attribute((constructor)) kvm_selftest_init(void)
+{
+	struct sigaction sig_sa = {
+		.sa_handler = report_unexpected_signal,
+	};
+
+	/* Tell stdout not to buffer its content. */
+	setbuf(stdout, NULL);
+
+	sigaction(SIGBUS, &sig_sa, NULL);
+	sigaction(SIGSEGV, &sig_sa, NULL);
+	sigaction(SIGILL, &sig_sa, NULL);
+	sigaction(SIGFPE, &sig_sa, NULL);
+
+	guest_random_seed = last_guest_seed = random();
+	pr_info("Random seed: 0x%x\n", guest_random_seed);
+
+	kvm_selftest_arch_init();
+}
+
+bool vm_is_gpa_protected(struct kvm_vm *vm, vm_paddr_t paddr)
+{
+	sparsebit_idx_t pg = 0;
+	struct userspace_mem_region *region;
+
+	if (!vm_arch_has_protected_memory(vm))
+		return false;
+
+	region = userspace_mem_region_find(vm, paddr, paddr);
+	TEST_ASSERT(region, "No vm physical memory at 0x%lx", paddr);
+
+	pg = paddr >> vm->page_shift;
+	return sparsebit_is_set(region->protected_phy_pages, pg);
+}
+
+__weak bool kvm_arch_has_default_irqchip(void)
+{
+	return false;
+}
diff --git a/tools/testing/selftests/kvm/lib/loongarch/exception.S b/tools/testing/selftests/kvm/lib/loongarch/exception.S
new file mode 100644
index 000000000000..3f1e4b67c5ae
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/loongarch/exception.S
@@ -0,0 +1,65 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include "processor.h"
+
+/* address of refill exception should be 4K aligned */
+.balign	4096
+.global handle_tlb_refill
+handle_tlb_refill:
+	csrwr	t0, LOONGARCH_CSR_TLBRSAVE
+	csrrd	t0, LOONGARCH_CSR_PGD
+	lddir	t0, t0, 3
+	lddir	t0, t0, 1
+	ldpte	t0, 0
+	ldpte	t0, 1
+	tlbfill
+	csrrd	t0, LOONGARCH_CSR_TLBRSAVE
+	ertn
+
+	/*
+	 * save and restore all gprs except base register,
+	 * and default value of base register is sp ($r3).
+	 */
+.macro save_gprs base
+	.irp n,1,2,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
+	st.d    $r\n, \base, 8 * \n
+	.endr
+.endm
+
+.macro restore_gprs base
+	.irp n,1,2,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
+	ld.d    $r\n, \base, 8 * \n
+	.endr
+.endm
+
+/* address of general exception should be 4K aligned */
+.balign	4096
+.global handle_exception
+handle_exception:
+	csrwr  sp, LOONGARCH_CSR_KS0
+	csrrd  sp, LOONGARCH_CSR_KS1
+	addi.d sp, sp, -EXREGS_SIZE
+
+	save_gprs sp
+	/* save sp register to stack */
+	csrrd  t0, LOONGARCH_CSR_KS0
+	st.d   t0, sp, 3 * 8
+
+	csrrd  t0, LOONGARCH_CSR_ERA
+	st.d   t0, sp, PC_OFFSET_EXREGS
+	csrrd  t0, LOONGARCH_CSR_ESTAT
+	st.d   t0, sp, ESTAT_OFFSET_EXREGS
+	csrrd  t0, LOONGARCH_CSR_BADV
+	st.d   t0, sp, BADV_OFFSET_EXREGS
+	csrrd  t0, LOONGARCH_CSR_PRMD
+	st.d   t0, sp, PRMD_OFFSET_EXREGS
+
+	or     a0, sp, zero
+	bl route_exception
+	ld.d   t0, sp, PC_OFFSET_EXREGS
+	csrwr  t0, LOONGARCH_CSR_ERA
+	ld.d   t0, sp, PRMD_OFFSET_EXREGS
+	csrwr  t0, LOONGARCH_CSR_PRMD
+	restore_gprs sp
+	csrrd  sp, LOONGARCH_CSR_KS0
+	ertn
diff --git a/tools/testing/selftests/kvm/lib/loongarch/processor.c b/tools/testing/selftests/kvm/lib/loongarch/processor.c
new file mode 100644
index 000000000000..07c103369ddb
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/loongarch/processor.c
@@ -0,0 +1,389 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <assert.h>
+#include <linux/compiler.h>
+
+#include <asm/kvm.h>
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#define LOONGARCH_PAGE_TABLE_PHYS_MIN		0x200000
+#define LOONGARCH_GUEST_STACK_VADDR_MIN		0x200000
+
+static vm_paddr_t invalid_pgtable[4];
+static vm_vaddr_t exception_handlers;
+
+static uint64_t virt_pte_index(struct kvm_vm *vm, vm_vaddr_t gva, int level)
+{
+	unsigned int shift;
+	uint64_t mask;
+
+	shift = level * (vm->page_shift - 3) + vm->page_shift;
+	mask = (1UL << (vm->page_shift - 3)) - 1;
+	return (gva >> shift) & mask;
+}
+
+static uint64_t pte_addr(struct kvm_vm *vm, uint64_t entry)
+{
+	return entry &  ~((0x1UL << vm->page_shift) - 1);
+}
+
+static uint64_t ptrs_per_pte(struct kvm_vm *vm)
+{
+	return 1 << (vm->page_shift - 3);
+}
+
+static void virt_set_pgtable(struct kvm_vm *vm, vm_paddr_t table, vm_paddr_t child)
+{
+	uint64_t *ptep;
+	int i, ptrs_per_pte;
+
+	ptep = addr_gpa2hva(vm, table);
+	ptrs_per_pte = 1 << (vm->page_shift - 3);
+	for (i = 0; i < ptrs_per_pte; i++)
+		WRITE_ONCE(*(ptep + i), child);
+}
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
+{
+	int i;
+	vm_paddr_t child, table;
+
+	if (vm->pgd_created)
+		return;
+
+	child = table = 0;
+	for (i = 0; i < vm->pgtable_levels; i++) {
+		invalid_pgtable[i] = child;
+		table = vm_phy_page_alloc(vm, LOONGARCH_PAGE_TABLE_PHYS_MIN,
+				vm->memslots[MEM_REGION_PT]);
+		TEST_ASSERT(table, "Fail to allocate page tale at level %d\n", i);
+		virt_set_pgtable(vm, table, child);
+		child = table;
+	}
+	vm->pgd = table;
+	vm->pgd_created = true;
+}
+
+static int virt_pte_none(uint64_t *ptep, int level)
+{
+	return *ptep == invalid_pgtable[level];
+}
+
+static uint64_t *virt_populate_pte(struct kvm_vm *vm, vm_vaddr_t gva, int alloc)
+{
+	int level;
+	uint64_t *ptep;
+	vm_paddr_t child;
+
+	if (!vm->pgd_created)
+		goto unmapped_gva;
+
+	child = vm->pgd;
+	level = vm->pgtable_levels - 1;
+	while (level > 0) {
+		ptep = addr_gpa2hva(vm, child) + virt_pte_index(vm, gva, level) * 8;
+		if (virt_pte_none(ptep, level)) {
+			if (alloc) {
+				child = vm_alloc_page_table(vm);
+				virt_set_pgtable(vm, child, invalid_pgtable[level - 1]);
+				WRITE_ONCE(*ptep, child);
+			} else
+				goto unmapped_gva;
+
+		} else
+			child = pte_addr(vm, *ptep);
+		level--;
+	}
+
+	ptep = addr_gpa2hva(vm, child) + virt_pte_index(vm, gva, level) * 8;
+	return ptep;
+
+unmapped_gva:
+	TEST_FAIL("No mapping for vm virtual address, gva: 0x%lx", gva);
+	exit(EXIT_FAILURE);
+}
+
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	uint64_t *ptep;
+
+	ptep = virt_populate_pte(vm, gva, 0);
+	TEST_ASSERT(*ptep != 0, "Virtual address vaddr: 0x%lx not mapped\n", gva);
+
+	return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1));
+}
+
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	uint32_t prot_bits;
+	uint64_t *ptep;
+
+	TEST_ASSERT((vaddr % vm->page_size) == 0,
+			"Virtual address not on page boundary,\n"
+			"vaddr: 0x%lx vm->page_size: 0x%x", vaddr, vm->page_size);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,
+			(vaddr >> vm->page_shift)),
+			"Invalid virtual address, vaddr: 0x%lx", vaddr);
+	TEST_ASSERT((paddr % vm->page_size) == 0,
+			"Physical address not on page boundary,\n"
+			"paddr: 0x%lx vm->page_size: 0x%x", paddr, vm->page_size);
+	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,
+			"Physical address beyond maximum supported,\n"
+			"paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+			paddr, vm->max_gfn, vm->page_size);
+
+	ptep = virt_populate_pte(vm, vaddr, 1);
+	prot_bits = _PAGE_PRESENT | __READABLE | __WRITEABLE | _CACHE_CC | _PAGE_USER;
+	WRITE_ONCE(*ptep, paddr | prot_bits);
+}
+
+static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent, uint64_t page, int level)
+{
+	uint64_t pte, *ptep;
+	static const char * const type[] = { "pte", "pmd", "pud", "pgd"};
+
+	if (level < 0)
+		return;
+
+	for (pte = page; pte < page + ptrs_per_pte(vm) * 8; pte += 8) {
+		ptep = addr_gpa2hva(vm, pte);
+		if (virt_pte_none(ptep, level))
+			continue;
+		fprintf(stream, "%*s%s: %lx: %lx at %p\n",
+				indent, "", type[level], pte, *ptep, ptep);
+		pte_dump(stream, vm, indent + 1, pte_addr(vm, *ptep), level--);
+	}
+}
+
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	int level;
+
+	if (!vm->pgd_created)
+		return;
+
+	level = vm->pgtable_levels - 1;
+	pte_dump(stream, vm, indent, vm->pgd, level);
+}
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
+{
+}
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) != UCALL_UNHANDLED)
+		return;
+
+	TEST_FAIL("Unexpected exception (pc:0x%lx, estat:0x%lx, badv:0x%lx)",
+			uc.args[0], uc.args[1], uc.args[2]);
+}
+
+void route_exception(struct ex_regs *regs)
+{
+	int vector;
+	unsigned long pc, estat, badv;
+	struct handlers *handlers;
+
+	handlers = (struct handlers *)exception_handlers;
+	vector = (regs->estat & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT;
+	if (handlers && handlers->exception_handlers[vector])
+		return handlers->exception_handlers[vector](regs);
+
+	pc = regs->pc;
+	badv  = regs->badv;
+	estat = regs->estat;
+	ucall(UCALL_UNHANDLED, 3, pc, estat, badv);
+	while (1) ;
+}
+
+void vm_init_descriptor_tables(struct kvm_vm *vm)
+{
+	void *addr;
+
+	vm->handlers = __vm_vaddr_alloc(vm, sizeof(struct handlers),
+			LOONGARCH_GUEST_STACK_VADDR_MIN, MEM_REGION_DATA);
+
+	addr = addr_gva2hva(vm, vm->handlers);
+	memset(addr, 0, vm->page_size);
+	exception_handlers = vm->handlers;
+	sync_global_to_guest(vm, exception_handlers);
+}
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector, handler_fn handler)
+{
+	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);
+
+	assert(vector < VECTOR_NUM);
+	handlers->exception_handlers[vector] = handler;
+}
+
+uint32_t guest_get_vcpuid(void)
+{
+	return csr_read(LOONGARCH_CSR_CPUID);
+}
+
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
+{
+	int i;
+	va_list ap;
+	struct kvm_regs regs;
+
+	TEST_ASSERT(num >= 1 && num <= 8, "Unsupported number of args,\n"
+		    "num: %u\n", num);
+
+	vcpu_regs_get(vcpu, &regs);
+
+	va_start(ap, num);
+	for (i = 0; i < num; i++)
+		regs.gpr[i + 4] = va_arg(ap, uint64_t);
+	va_end(ap);
+
+	vcpu_regs_set(vcpu, &regs);
+}
+
+static void loongarch_set_reg(struct kvm_vcpu *vcpu, uint64_t id, uint64_t val)
+{
+	__vcpu_set_reg(vcpu, id, val);
+}
+
+static void loongarch_get_csr(struct kvm_vcpu *vcpu, uint64_t id, void *addr)
+{
+	uint64_t csrid;
+
+	csrid = KVM_REG_LOONGARCH_CSR | KVM_REG_SIZE_U64 | 8 * id;
+	__vcpu_get_reg(vcpu, csrid, addr);
+}
+
+static void loongarch_set_csr(struct kvm_vcpu *vcpu, uint64_t id, uint64_t val)
+{
+	uint64_t csrid;
+
+	csrid = KVM_REG_LOONGARCH_CSR | KVM_REG_SIZE_U64 | 8 * id;
+	__vcpu_set_reg(vcpu, csrid, val);
+}
+
+static void loongarch_vcpu_setup(struct kvm_vcpu *vcpu)
+{
+	int width;
+	unsigned long val;
+	struct kvm_vm *vm = vcpu->vm;
+
+	switch (vm->mode) {
+	case VM_MODE_P36V47_16K:
+	case VM_MODE_P47V47_16K:
+		break;
+
+	default:
+		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);
+	}
+
+	/* kernel mode and page enable mode */
+	val = PLV_KERN | CSR_CRMD_PG;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_CRMD, val);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_PRMD, val);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_EUEN, 1);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_ECFG, 0);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_TCFG, 0);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_ASID, 1);
+
+	/* time count start from 0 */
+	val = 0;
+	loongarch_set_reg(vcpu, KVM_REG_LOONGARCH_COUNTER, val);
+
+	width = vm->page_shift - 3;
+
+	switch (vm->pgtable_levels) {
+	case 4:
+		/* pud page shift and width */
+		val = (vm->page_shift + width * 2) << 20 | (width << 25);
+		/* fall throuth */
+	case 3:
+		/* pmd page shift and width */
+		val |= (vm->page_shift + width) << 10 | (width << 15);
+		/* pte page shift and width */
+		val |= vm->page_shift | width << 5;
+		break;
+	default:
+		TEST_FAIL("Got %u page table levels, expected 3 or 4", vm->pgtable_levels);
+	}
+
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_PWCTL0, val);
+
+	/* PGD page shift and width */
+	val = (vm->page_shift + width * (vm->pgtable_levels - 1)) | width << 6;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_PWCTL1, val);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_PGDL, vm->pgd);
+
+	/*
+	 * Refill exception runs on real mode
+	 * Entry address should be physical address
+	 */
+	val = addr_gva2gpa(vm, (unsigned long)handle_tlb_refill);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_TLBRENTRY, val);
+
+	/*
+	 * General exception runs on page-enabled mode
+	 * Entry address should be virtual address
+	 */
+	val = (unsigned long)handle_exception;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_EENTRY, val);
+
+	loongarch_get_csr(vcpu, LOONGARCH_CSR_TLBIDX, &val);
+	val &= ~CSR_TLBIDX_SIZEM;
+	val |= PS_DEFAULT_SIZE << CSR_TLBIDX_SIZE;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_TLBIDX, val);
+
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_STLBPGSIZE, PS_DEFAULT_SIZE);
+
+	/* LOONGARCH_CSR_KS1 is used for exception stack */
+	val = __vm_vaddr_alloc(vm, vm->page_size,
+			LOONGARCH_GUEST_STACK_VADDR_MIN, MEM_REGION_DATA);
+	TEST_ASSERT(val != 0,  "No memory for exception stack");
+	val = val + vm->page_size;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_KS1, val);
+
+	loongarch_get_csr(vcpu, LOONGARCH_CSR_TLBREHI, &val);
+	val &= ~CSR_TLBREHI_PS;
+	val |= PS_DEFAULT_SIZE << CSR_TLBREHI_PS_SHIFT;
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_TLBREHI, val);
+
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_CPUID, vcpu->id);
+	loongarch_set_csr(vcpu, LOONGARCH_CSR_TMID,  vcpu->id);
+}
+
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	size_t stack_size;
+	uint64_t stack_vaddr;
+	struct kvm_regs regs;
+	struct kvm_vcpu *vcpu;
+
+	vcpu = __vm_vcpu_add(vm, vcpu_id);
+	stack_size = vm->page_size;
+	stack_vaddr = __vm_vaddr_alloc(vm, stack_size,
+			LOONGARCH_GUEST_STACK_VADDR_MIN, MEM_REGION_DATA);
+	TEST_ASSERT(stack_vaddr != 0,  "No memory for vm stack");
+
+	loongarch_vcpu_setup(vcpu);
+	/* Setup guest general purpose registers */
+	vcpu_regs_get(vcpu, &regs);
+	regs.gpr[3] = stack_vaddr + stack_size;
+	vcpu_regs_set(vcpu, &regs);
+
+	return vcpu;
+}
+
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code)
+{
+	struct kvm_regs regs;
+
+	/* Setup guest PC register */
+	vcpu_regs_get(vcpu, &regs);
+	regs.pc = (uint64_t)guest_code;
+	vcpu_regs_set(vcpu, &regs);
+}
diff --git a/tools/testing/selftests/kvm/lib/loongarch/ucall.c b/tools/testing/selftests/kvm/lib/loongarch/ucall.c
new file mode 100644
index 000000000000..fc6cbb50573f
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/loongarch/ucall.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucall support. A ucall is a "hypercall to userspace".
+ *
+ */
+#include "kvm_util.h"
+
+/*
+ * ucall_exit_mmio_addr holds per-VM values (global data is duplicated by each
+ * VM), it must not be accessed from host code.
+ */
+vm_vaddr_t *ucall_exit_mmio_addr;
+
+void ucall_arch_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+	vm_vaddr_t mmio_gva = vm_vaddr_unused_gap(vm, vm->page_size, KVM_UTIL_MIN_VADDR);
+
+	virt_map(vm, mmio_gva, mmio_gpa, 1);
+
+	vm->ucall_mmio_addr = mmio_gpa;
+
+	write_guest_global(vm, ucall_exit_mmio_addr, (vm_vaddr_t *)mmio_gva);
+}
+
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	if (run->exit_reason == KVM_EXIT_MMIO &&
+	    run->mmio.phys_addr == vcpu->vm->ucall_mmio_addr) {
+		TEST_ASSERT(run->mmio.is_write && run->mmio.len == sizeof(uint64_t),
+			    "Unexpected ucall exit mmio address access");
+
+		return (void *)(*((uint64_t *)run->mmio.data));
+	}
+
+	return NULL;
+}
diff --git a/tools/testing/selftests/kvm/lib/lru_gen_util.c b/tools/testing/selftests/kvm/lib/lru_gen_util.c
new file mode 100644
index 000000000000..46a14fd63d9e
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/lru_gen_util.c
@@ -0,0 +1,387 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2025, Google LLC.
+ */
+
+#include <time.h>
+
+#include "lru_gen_util.h"
+
+/*
+ * Tracks state while we parse memcg lru_gen stats. The file we're parsing is
+ * structured like this (some extra whitespace elided):
+ *
+ * memcg (id) (path)
+ * node (id)
+ * (gen_nr) (age_in_ms) (nr_anon_pages) (nr_file_pages)
+ */
+struct memcg_stats_parse_context {
+	bool consumed; /* Whether or not this line was consumed */
+	/* Next parse handler to invoke */
+	void (*next_handler)(struct memcg_stats *stats,
+			     struct memcg_stats_parse_context *ctx,
+			     char *line);
+	int current_node_idx; /* Current index in nodes array */
+	const char *name; /* The name of the memcg we're looking for */
+};
+
+static void memcg_stats_handle_searching(struct memcg_stats *stats,
+					 struct memcg_stats_parse_context *ctx,
+					 char *line);
+static void memcg_stats_handle_in_memcg(struct memcg_stats *stats,
+					struct memcg_stats_parse_context *ctx,
+					char *line);
+static void memcg_stats_handle_in_node(struct memcg_stats *stats,
+				       struct memcg_stats_parse_context *ctx,
+				       char *line);
+
+struct split_iterator {
+	char *str;
+	char *save;
+};
+
+static char *split_next(struct split_iterator *it)
+{
+	char *ret = strtok_r(it->str, " \t\n\r", &it->save);
+
+	it->str = NULL;
+	return ret;
+}
+
+static void memcg_stats_handle_searching(struct memcg_stats *stats,
+					 struct memcg_stats_parse_context *ctx,
+					 char *line)
+{
+	struct split_iterator it = { .str = line };
+	char *prefix = split_next(&it);
+	char *memcg_id = split_next(&it);
+	char *memcg_name = split_next(&it);
+	char *end;
+
+	ctx->consumed = true;
+
+	if (!prefix || strcmp("memcg", prefix))
+		return; /* Not a memcg line (maybe empty), skip */
+
+	TEST_ASSERT(memcg_id && memcg_name,
+		    "malformed memcg line; no memcg id or memcg_name");
+
+	if (strcmp(memcg_name + 1, ctx->name))
+		return; /* Wrong memcg, skip */
+
+	/* Found it! */
+
+	stats->memcg_id = strtoul(memcg_id, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed memcg id '%s'", memcg_id);
+	if (!stats->memcg_id)
+		return; /* Removed memcg? */
+
+	ctx->next_handler = memcg_stats_handle_in_memcg;
+}
+
+static void memcg_stats_handle_in_memcg(struct memcg_stats *stats,
+					struct memcg_stats_parse_context *ctx,
+					char *line)
+{
+	struct split_iterator it = { .str = line };
+	char *prefix = split_next(&it);
+	char *id = split_next(&it);
+	long found_node_id;
+	char *end;
+
+	ctx->consumed = true;
+	ctx->current_node_idx = -1;
+
+	if (!prefix)
+		return; /* Skip empty lines */
+
+	if (!strcmp("memcg", prefix)) {
+		/* Memcg done, found next one; stop. */
+		ctx->next_handler = NULL;
+		return;
+	} else if (strcmp("node", prefix))
+		TEST_ASSERT(false, "found malformed line after 'memcg ...',"
+				   "token: '%s'", prefix);
+
+	/* At this point we know we have a node line. Parse the ID. */
+
+	TEST_ASSERT(id, "malformed node line; no node id");
+
+	found_node_id = strtol(id, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed node id '%s'", id);
+
+	ctx->current_node_idx = stats->nr_nodes++;
+	TEST_ASSERT(ctx->current_node_idx < MAX_NR_NODES,
+		    "memcg has stats for too many nodes, max is %d",
+		    MAX_NR_NODES);
+	stats->nodes[ctx->current_node_idx].node = found_node_id;
+
+	ctx->next_handler = memcg_stats_handle_in_node;
+}
+
+static void memcg_stats_handle_in_node(struct memcg_stats *stats,
+				       struct memcg_stats_parse_context *ctx,
+				       char *line)
+{
+	char *my_line = strdup(line);
+	struct split_iterator it = { .str = my_line };
+	char *gen, *age, *nr_anon, *nr_file;
+	struct node_stats *node_stats;
+	struct generation_stats *gen_stats;
+	char *end;
+
+	TEST_ASSERT(it.str, "failed to copy input line");
+
+	gen = split_next(&it);
+
+	if (!gen)
+		goto out_consume; /* Skip empty lines */
+
+	if (!strcmp("memcg", gen) || !strcmp("node", gen)) {
+		/*
+		 * Reached next memcg or node section. Don't consume, let the
+		 * other handler deal with this.
+		 */
+		ctx->next_handler = memcg_stats_handle_in_memcg;
+		goto out;
+	}
+
+	node_stats = &stats->nodes[ctx->current_node_idx];
+	TEST_ASSERT(node_stats->nr_gens < MAX_NR_GENS,
+		    "found too many generation lines; max is %d",
+		    MAX_NR_GENS);
+	gen_stats = &node_stats->gens[node_stats->nr_gens++];
+
+	age = split_next(&it);
+	nr_anon = split_next(&it);
+	nr_file = split_next(&it);
+
+	TEST_ASSERT(age && nr_anon && nr_file,
+		    "malformed generation line; not enough tokens");
+
+	gen_stats->gen = (int)strtol(gen, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed generation number '%s'", gen);
+
+	gen_stats->age_ms = strtol(age, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed generation age '%s'", age);
+
+	gen_stats->nr_anon = strtol(nr_anon, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed anonymous page count '%s'",
+		    nr_anon);
+
+	gen_stats->nr_file = strtol(nr_file, &end, 10);
+	TEST_ASSERT(*end == '\0', "malformed file page count '%s'", nr_file);
+
+out_consume:
+	ctx->consumed = true;
+out:
+	free(my_line);
+}
+
+static void print_memcg_stats(const struct memcg_stats *stats, const char *name)
+{
+	int node, gen;
+
+	pr_debug("stats for memcg %s (id %lu):\n", name, stats->memcg_id);
+	for (node = 0; node < stats->nr_nodes; ++node) {
+		pr_debug("\tnode %d\n", stats->nodes[node].node);
+		for (gen = 0; gen < stats->nodes[node].nr_gens; ++gen) {
+			const struct generation_stats *gstats =
+				&stats->nodes[node].gens[gen];
+
+			pr_debug("\t\tgen %d\tage_ms %ld"
+				 "\tnr_anon %ld\tnr_file %ld\n",
+				 gstats->gen, gstats->age_ms, gstats->nr_anon,
+				 gstats->nr_file);
+		}
+	}
+}
+
+/* Re-read lru_gen debugfs information for @memcg into @stats. */
+void lru_gen_read_memcg_stats(struct memcg_stats *stats, const char *memcg)
+{
+	FILE *f;
+	ssize_t read = 0;
+	char *line = NULL;
+	size_t bufsz;
+	struct memcg_stats_parse_context ctx = {
+		.next_handler = memcg_stats_handle_searching,
+		.name = memcg,
+	};
+
+	memset(stats, 0, sizeof(struct memcg_stats));
+
+	f = fopen(LRU_GEN_DEBUGFS, "r");
+	TEST_ASSERT(f, "fopen(%s) failed", LRU_GEN_DEBUGFS);
+
+	while (ctx.next_handler && (read = getline(&line, &bufsz, f)) > 0) {
+		ctx.consumed = false;
+
+		do {
+			ctx.next_handler(stats, &ctx, line);
+			if (!ctx.next_handler)
+				break;
+		} while (!ctx.consumed);
+	}
+
+	if (read < 0 && !feof(f))
+		TEST_ASSERT(false, "getline(%s) failed", LRU_GEN_DEBUGFS);
+
+	TEST_ASSERT(stats->memcg_id > 0, "Couldn't find memcg: %s\n"
+		    "Did the memcg get created in the proper mount?",
+		    memcg);
+	if (line)
+		free(line);
+	TEST_ASSERT(!fclose(f), "fclose(%s) failed", LRU_GEN_DEBUGFS);
+
+	print_memcg_stats(stats, memcg);
+}
+
+/*
+ * Find all pages tracked by lru_gen for this memcg in generation @target_gen.
+ *
+ * If @target_gen is negative, look for all generations.
+ */
+long lru_gen_sum_memcg_stats_for_gen(int target_gen,
+				     const struct memcg_stats *stats)
+{
+	int node, gen;
+	long total_nr = 0;
+
+	for (node = 0; node < stats->nr_nodes; ++node) {
+		const struct node_stats *node_stats = &stats->nodes[node];
+
+		for (gen = 0; gen < node_stats->nr_gens; ++gen) {
+			const struct generation_stats *gen_stats =
+				&node_stats->gens[gen];
+
+			if (target_gen >= 0 && gen_stats->gen != target_gen)
+				continue;
+
+			total_nr += gen_stats->nr_anon + gen_stats->nr_file;
+		}
+	}
+
+	return total_nr;
+}
+
+/* Find all pages tracked by lru_gen for this memcg. */
+long lru_gen_sum_memcg_stats(const struct memcg_stats *stats)
+{
+	return lru_gen_sum_memcg_stats_for_gen(-1, stats);
+}
+
+/*
+ * If lru_gen aging should force page table scanning.
+ *
+ * If you want to set this to false, you will need to do eviction
+ * before doing extra aging passes.
+ */
+static const bool force_scan = true;
+
+static void run_aging_impl(unsigned long memcg_id, int node_id, int max_gen)
+{
+	FILE *f = fopen(LRU_GEN_DEBUGFS, "w");
+	char *command;
+	size_t sz;
+
+	TEST_ASSERT(f, "fopen(%s) failed", LRU_GEN_DEBUGFS);
+	sz = asprintf(&command, "+ %lu %d %d 1 %d\n",
+		      memcg_id, node_id, max_gen, force_scan);
+	TEST_ASSERT(sz > 0, "creating aging command failed");
+
+	pr_debug("Running aging command: %s", command);
+	if (fwrite(command, sizeof(char), sz, f) < sz) {
+		TEST_ASSERT(false, "writing aging command %s to %s failed",
+			    command, LRU_GEN_DEBUGFS);
+	}
+
+	TEST_ASSERT(!fclose(f), "fclose(%s) failed", LRU_GEN_DEBUGFS);
+}
+
+void lru_gen_do_aging(struct memcg_stats *stats, const char *memcg)
+{
+	int node, gen;
+
+	pr_debug("lru_gen: invoking aging...\n");
+
+	/* Must read memcg stats to construct the proper aging command. */
+	lru_gen_read_memcg_stats(stats, memcg);
+
+	for (node = 0; node < stats->nr_nodes; ++node) {
+		int max_gen = 0;
+
+		for (gen = 0; gen < stats->nodes[node].nr_gens; ++gen) {
+			int this_gen = stats->nodes[node].gens[gen].gen;
+
+			max_gen = max_gen > this_gen ? max_gen : this_gen;
+		}
+
+		run_aging_impl(stats->memcg_id, stats->nodes[node].node,
+			       max_gen);
+	}
+
+	/* Re-read so callers get updated information */
+	lru_gen_read_memcg_stats(stats, memcg);
+}
+
+/*
+ * Find which generation contains at least @pages pages, assuming that
+ * such a generation exists.
+ */
+int lru_gen_find_generation(const struct memcg_stats *stats,
+			    unsigned long pages)
+{
+	int node, gen, gen_idx, min_gen = INT_MAX, max_gen = -1;
+
+	for (node = 0; node < stats->nr_nodes; ++node)
+		for (gen_idx = 0; gen_idx < stats->nodes[node].nr_gens;
+		     ++gen_idx) {
+			gen = stats->nodes[node].gens[gen_idx].gen;
+			max_gen = gen > max_gen ? gen : max_gen;
+			min_gen = gen < min_gen ? gen : min_gen;
+		}
+
+	for (gen = min_gen; gen <= max_gen; ++gen)
+		/* See if this generation has enough pages. */
+		if (lru_gen_sum_memcg_stats_for_gen(gen, stats) > pages)
+			return gen;
+
+	return -1;
+}
+
+bool lru_gen_usable(void)
+{
+	long required_features = LRU_GEN_ENABLED | LRU_GEN_MM_WALK;
+	int lru_gen_fd, lru_gen_debug_fd;
+	char mglru_feature_str[8] = {};
+	long mglru_features;
+
+	lru_gen_fd = open(LRU_GEN_ENABLED_PATH, O_RDONLY);
+	if (lru_gen_fd < 0) {
+		puts("lru_gen: Could not open " LRU_GEN_ENABLED_PATH);
+		return false;
+	}
+	if (read(lru_gen_fd, &mglru_feature_str, 7) < 7) {
+		puts("lru_gen: Could not read from " LRU_GEN_ENABLED_PATH);
+		close(lru_gen_fd);
+		return false;
+	}
+	close(lru_gen_fd);
+
+	mglru_features = strtol(mglru_feature_str, NULL, 16);
+	if ((mglru_features & required_features) != required_features) {
+		printf("lru_gen: missing features, got: 0x%lx, expected: 0x%lx\n",
+		       mglru_features, required_features);
+		printf("lru_gen: Try 'echo 0x%lx > /sys/kernel/mm/lru_gen/enabled'\n",
+		       required_features);
+		return false;
+	}
+
+	lru_gen_debug_fd = open(LRU_GEN_DEBUGFS, O_RDWR);
+	__TEST_REQUIRE(lru_gen_debug_fd >= 0,
+		       "lru_gen: Could not open " LRU_GEN_DEBUGFS ", "
+		       "but lru_gen is enabled, so cannot use page_idle.");
+	close(lru_gen_debug_fd);
+	return true;
+}
diff --git a/tools/testing/selftests/kvm/lib/memstress.c b/tools/testing/selftests/kvm/lib/memstress.c
new file mode 100644
index 000000000000..557c0a0a5658
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/memstress.c
@@ -0,0 +1,391 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Google LLC.
+ */
+#include <inttypes.h>
+#include <linux/bitmap.h>
+
+#include "kvm_util.h"
+#include "memstress.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+struct memstress_args memstress_args;
+
+/*
+ * Guest virtual memory offset of the testing memory slot.
+ * Must not conflict with identity mapped test code.
+ */
+static uint64_t guest_test_virt_mem = DEFAULT_GUEST_TEST_MEM;
+
+struct vcpu_thread {
+	/* The index of the vCPU. */
+	int vcpu_idx;
+
+	/* The pthread backing the vCPU. */
+	pthread_t thread;
+
+	/* Set to true once the vCPU thread is up and running. */
+	bool running;
+};
+
+/* The vCPU threads involved in this test. */
+static struct vcpu_thread vcpu_threads[KVM_MAX_VCPUS];
+
+/* The function run by each vCPU thread, as provided by the test. */
+static void (*vcpu_thread_fn)(struct memstress_vcpu_args *);
+
+/* Set to true once all vCPU threads are up and running. */
+static bool all_vcpu_threads_running;
+
+static struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+
+/*
+ * Continuously write to the first 8 bytes of each page in the
+ * specified region.
+ */
+void memstress_guest_code(uint32_t vcpu_idx)
+{
+	struct memstress_args *args = &memstress_args;
+	struct memstress_vcpu_args *vcpu_args = &args->vcpu_args[vcpu_idx];
+	struct guest_random_state rand_state;
+	uint64_t gva;
+	uint64_t pages;
+	uint64_t addr;
+	uint64_t page;
+	int i;
+
+	rand_state = new_guest_random_state(guest_random_seed + vcpu_idx);
+
+	gva = vcpu_args->gva;
+	pages = vcpu_args->pages;
+
+	/* Make sure vCPU args data structure is not corrupt. */
+	GUEST_ASSERT(vcpu_args->vcpu_idx == vcpu_idx);
+
+	while (true) {
+		for (i = 0; i < sizeof(memstress_args); i += args->guest_page_size)
+			(void) *((volatile char *)args + i);
+
+		for (i = 0; i < pages; i++) {
+			if (args->random_access)
+				page = guest_random_u32(&rand_state) % pages;
+			else
+				page = i;
+
+			addr = gva + (page * args->guest_page_size);
+
+			if (__guest_random_bool(&rand_state, args->write_percent))
+				*(uint64_t *)addr = 0x0123456789ABCDEF;
+			else
+				READ_ONCE(*(uint64_t *)addr);
+		}
+
+		GUEST_SYNC(1);
+	}
+}
+
+void memstress_setup_vcpus(struct kvm_vm *vm, int nr_vcpus,
+			   struct kvm_vcpu *vcpus[],
+			   uint64_t vcpu_memory_bytes,
+			   bool partition_vcpu_memory_access)
+{
+	struct memstress_args *args = &memstress_args;
+	struct memstress_vcpu_args *vcpu_args;
+	int i;
+
+	for (i = 0; i < nr_vcpus; i++) {
+		vcpu_args = &args->vcpu_args[i];
+
+		vcpu_args->vcpu = vcpus[i];
+		vcpu_args->vcpu_idx = i;
+
+		if (partition_vcpu_memory_access) {
+			vcpu_args->gva = guest_test_virt_mem +
+					 (i * vcpu_memory_bytes);
+			vcpu_args->pages = vcpu_memory_bytes /
+					   args->guest_page_size;
+			vcpu_args->gpa = args->gpa + (i * vcpu_memory_bytes);
+		} else {
+			vcpu_args->gva = guest_test_virt_mem;
+			vcpu_args->pages = (nr_vcpus * vcpu_memory_bytes) /
+					   args->guest_page_size;
+			vcpu_args->gpa = args->gpa;
+		}
+
+		vcpu_args_set(vcpus[i], 1, i);
+
+		pr_debug("Added VCPU %d with test mem gpa [%lx, %lx)\n",
+			 i, vcpu_args->gpa, vcpu_args->gpa +
+			 (vcpu_args->pages * args->guest_page_size));
+	}
+}
+
+struct kvm_vm *memstress_create_vm(enum vm_guest_mode mode, int nr_vcpus,
+				   uint64_t vcpu_memory_bytes, int slots,
+				   enum vm_mem_backing_src_type backing_src,
+				   bool partition_vcpu_memory_access)
+{
+	struct memstress_args *args = &memstress_args;
+	struct kvm_vm *vm;
+	uint64_t guest_num_pages, slot0_pages = 0;
+	uint64_t backing_src_pagesz = get_backing_src_pagesz(backing_src);
+	uint64_t region_end_gfn;
+	int i;
+
+	pr_info("Testing guest mode: %s\n", vm_guest_mode_string(mode));
+
+	/* By default vCPUs will write to memory. */
+	args->write_percent = 100;
+
+	/*
+	 * Snapshot the non-huge page size.  This is used by the guest code to
+	 * access/dirty pages at the logging granularity.
+	 */
+	args->guest_page_size = vm_guest_mode_params[mode].page_size;
+
+	guest_num_pages = vm_adjust_num_guest_pages(mode,
+				(nr_vcpus * vcpu_memory_bytes) / args->guest_page_size);
+
+	TEST_ASSERT(vcpu_memory_bytes % getpagesize() == 0,
+		    "Guest memory size is not host page size aligned.");
+	TEST_ASSERT(vcpu_memory_bytes % args->guest_page_size == 0,
+		    "Guest memory size is not guest page size aligned.");
+	TEST_ASSERT(guest_num_pages % slots == 0,
+		    "Guest memory cannot be evenly divided into %d slots.",
+		    slots);
+
+	/*
+	 * If using nested, allocate extra pages for the nested page tables and
+	 * in-memory data structures.
+	 */
+	if (args->nested)
+		slot0_pages += memstress_nested_pages(nr_vcpus);
+
+	/*
+	 * Pass guest_num_pages to populate the page tables for test memory.
+	 * The memory is also added to memslot 0, but that's a benign side
+	 * effect as KVM allows aliasing HVAs in meslots.
+	 */
+	vm = __vm_create_with_vcpus(VM_SHAPE(mode), nr_vcpus,
+				    slot0_pages + guest_num_pages,
+				    memstress_guest_code, vcpus);
+
+	args->vm = vm;
+
+	/* Put the test region at the top guest physical memory. */
+	region_end_gfn = vm->max_gfn + 1;
+
+#ifdef __x86_64__
+	/*
+	 * When running vCPUs in L2, restrict the test region to 48 bits to
+	 * avoid needing 5-level page tables to identity map L2.
+	 */
+	if (args->nested)
+		region_end_gfn = min(region_end_gfn, (1UL << 48) / args->guest_page_size);
+#endif
+	/*
+	 * If there should be more memory in the guest test region than there
+	 * can be pages in the guest, it will definitely cause problems.
+	 */
+	TEST_ASSERT(guest_num_pages < region_end_gfn,
+		    "Requested more guest memory than address space allows.\n"
+		    "    guest pages: %" PRIx64 " max gfn: %" PRIx64
+		    " nr_vcpus: %d wss: %" PRIx64 "]",
+		    guest_num_pages, region_end_gfn - 1, nr_vcpus, vcpu_memory_bytes);
+
+	args->gpa = (region_end_gfn - guest_num_pages - 1) * args->guest_page_size;
+	args->gpa = align_down(args->gpa, backing_src_pagesz);
+#ifdef __s390x__
+	/* Align to 1M (segment size) */
+	args->gpa = align_down(args->gpa, 1 << 20);
+#endif
+	args->size = guest_num_pages * args->guest_page_size;
+	pr_info("guest physical test memory: [0x%lx, 0x%lx)\n",
+		args->gpa, args->gpa + args->size);
+
+	/* Add extra memory slots for testing */
+	for (i = 0; i < slots; i++) {
+		uint64_t region_pages = guest_num_pages / slots;
+		vm_paddr_t region_start = args->gpa + region_pages * args->guest_page_size * i;
+
+		vm_userspace_mem_region_add(vm, backing_src, region_start,
+					    MEMSTRESS_MEM_SLOT_INDEX + i,
+					    region_pages, 0);
+	}
+
+	/* Do mapping for the demand paging memory slot */
+	virt_map(vm, guest_test_virt_mem, args->gpa, guest_num_pages);
+
+	memstress_setup_vcpus(vm, nr_vcpus, vcpus, vcpu_memory_bytes,
+			      partition_vcpu_memory_access);
+
+	if (args->nested) {
+		pr_info("Configuring vCPUs to run in L2 (nested).\n");
+		memstress_setup_nested(vm, nr_vcpus, vcpus);
+	}
+
+	/* Export the shared variables to the guest. */
+	sync_global_to_guest(vm, memstress_args);
+
+	return vm;
+}
+
+void memstress_destroy_vm(struct kvm_vm *vm)
+{
+	kvm_vm_free(vm);
+}
+
+void memstress_set_write_percent(struct kvm_vm *vm, uint32_t write_percent)
+{
+	memstress_args.write_percent = write_percent;
+	sync_global_to_guest(vm, memstress_args.write_percent);
+}
+
+void memstress_set_random_access(struct kvm_vm *vm, bool random_access)
+{
+	memstress_args.random_access = random_access;
+	sync_global_to_guest(vm, memstress_args.random_access);
+}
+
+uint64_t __weak memstress_nested_pages(int nr_vcpus)
+{
+	return 0;
+}
+
+void __weak memstress_setup_nested(struct kvm_vm *vm, int nr_vcpus, struct kvm_vcpu **vcpus)
+{
+	pr_info("%s() not support on this architecture, skipping.\n", __func__);
+	exit(KSFT_SKIP);
+}
+
+static void *vcpu_thread_main(void *data)
+{
+	struct vcpu_thread *vcpu = data;
+	int vcpu_idx = vcpu->vcpu_idx;
+
+	if (memstress_args.pin_vcpus)
+		pin_self_to_cpu(memstress_args.vcpu_to_pcpu[vcpu_idx]);
+
+	WRITE_ONCE(vcpu->running, true);
+
+	/*
+	 * Wait for all vCPU threads to be up and running before calling the test-
+	 * provided vCPU thread function. This prevents thread creation (which
+	 * requires taking the mmap_sem in write mode) from interfering with the
+	 * guest faulting in its memory.
+	 */
+	while (!READ_ONCE(all_vcpu_threads_running))
+		;
+
+	vcpu_thread_fn(&memstress_args.vcpu_args[vcpu_idx]);
+
+	return NULL;
+}
+
+void memstress_start_vcpu_threads(int nr_vcpus,
+				  void (*vcpu_fn)(struct memstress_vcpu_args *))
+{
+	int i;
+
+	vcpu_thread_fn = vcpu_fn;
+	WRITE_ONCE(all_vcpu_threads_running, false);
+	WRITE_ONCE(memstress_args.stop_vcpus, false);
+
+	for (i = 0; i < nr_vcpus; i++) {
+		struct vcpu_thread *vcpu = &vcpu_threads[i];
+
+		vcpu->vcpu_idx = i;
+		WRITE_ONCE(vcpu->running, false);
+
+		pthread_create(&vcpu->thread, NULL, vcpu_thread_main, vcpu);
+	}
+
+	for (i = 0; i < nr_vcpus; i++) {
+		while (!READ_ONCE(vcpu_threads[i].running))
+			;
+	}
+
+	WRITE_ONCE(all_vcpu_threads_running, true);
+}
+
+void memstress_join_vcpu_threads(int nr_vcpus)
+{
+	int i;
+
+	WRITE_ONCE(memstress_args.stop_vcpus, true);
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_join(vcpu_threads[i].thread, NULL);
+}
+
+static void toggle_dirty_logging(struct kvm_vm *vm, int slots, bool enable)
+{
+	int i;
+
+	for (i = 0; i < slots; i++) {
+		int slot = MEMSTRESS_MEM_SLOT_INDEX + i;
+		int flags = enable ? KVM_MEM_LOG_DIRTY_PAGES : 0;
+
+		vm_mem_region_set_flags(vm, slot, flags);
+	}
+}
+
+void memstress_enable_dirty_logging(struct kvm_vm *vm, int slots)
+{
+	toggle_dirty_logging(vm, slots, true);
+}
+
+void memstress_disable_dirty_logging(struct kvm_vm *vm, int slots)
+{
+	toggle_dirty_logging(vm, slots, false);
+}
+
+void memstress_get_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[], int slots)
+{
+	int i;
+
+	for (i = 0; i < slots; i++) {
+		int slot = MEMSTRESS_MEM_SLOT_INDEX + i;
+
+		kvm_vm_get_dirty_log(vm, slot, bitmaps[i]);
+	}
+}
+
+void memstress_clear_dirty_log(struct kvm_vm *vm, unsigned long *bitmaps[],
+			       int slots, uint64_t pages_per_slot)
+{
+	int i;
+
+	for (i = 0; i < slots; i++) {
+		int slot = MEMSTRESS_MEM_SLOT_INDEX + i;
+
+		kvm_vm_clear_dirty_log(vm, slot, bitmaps[i], 0, pages_per_slot);
+	}
+}
+
+unsigned long **memstress_alloc_bitmaps(int slots, uint64_t pages_per_slot)
+{
+	unsigned long **bitmaps;
+	int i;
+
+	bitmaps = malloc(slots * sizeof(bitmaps[0]));
+	TEST_ASSERT(bitmaps, "Failed to allocate bitmaps array.");
+
+	for (i = 0; i < slots; i++) {
+		bitmaps[i] = bitmap_zalloc(pages_per_slot);
+		TEST_ASSERT(bitmaps[i], "Failed to allocate slot bitmap.");
+	}
+
+	return bitmaps;
+}
+
+void memstress_free_bitmaps(unsigned long *bitmaps[], int slots)
+{
+	int i;
+
+	for (i = 0; i < slots; i++)
+		free(bitmaps[i]);
+
+	free(bitmaps);
+}
diff --git a/tools/testing/selftests/kvm/lib/rbtree.c b/tools/testing/selftests/kvm/lib/rbtree.c
new file mode 100644
index 000000000000..a703f0194ea3
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/rbtree.c
@@ -0,0 +1 @@
+#include "../../../../lib/rbtree.c"
diff --git a/tools/testing/selftests/kvm/lib/riscv/handlers.S b/tools/testing/selftests/kvm/lib/riscv/handlers.S
new file mode 100644
index 000000000000..b787b982e922
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/riscv/handlers.S
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Intel Corporation
+ */
+
+#ifndef __ASSEMBLY__
+#define __ASSEMBLY__
+#endif
+
+#include <asm/csr.h>
+
+.macro save_context
+	addi  sp, sp, (-8*36)
+	sd    x1, 8(sp)
+	sd    x2, 16(sp)
+	sd    x3, 24(sp)
+	sd    x4, 32(sp)
+	sd    x5, 40(sp)
+	sd    x6, 48(sp)
+	sd    x7, 56(sp)
+	sd    x8, 64(sp)
+	sd    x9, 72(sp)
+	sd    x10, 80(sp)
+	sd    x11, 88(sp)
+	sd    x12, 96(sp)
+	sd    x13, 104(sp)
+	sd    x14, 112(sp)
+	sd    x15, 120(sp)
+	sd    x16, 128(sp)
+	sd    x17, 136(sp)
+	sd    x18, 144(sp)
+	sd    x19, 152(sp)
+	sd    x20, 160(sp)
+	sd    x21, 168(sp)
+	sd    x22, 176(sp)
+	sd    x23, 184(sp)
+	sd    x24, 192(sp)
+	sd    x25, 200(sp)
+	sd    x26, 208(sp)
+	sd    x27, 216(sp)
+	sd    x28, 224(sp)
+	sd    x29, 232(sp)
+	sd    x30, 240(sp)
+	sd    x31, 248(sp)
+	csrr  s0, CSR_SEPC
+	csrr  s1, CSR_SSTATUS
+	csrr  s2, CSR_STVAL
+	csrr  s3, CSR_SCAUSE
+	sd    s0, 0(sp)
+	sd    s1, 256(sp)
+	sd    s2, 264(sp)
+	sd    s3, 272(sp)
+.endm
+
+.macro restore_context
+	ld    s3, 272(sp)
+	ld    s2, 264(sp)
+	ld    s1, 256(sp)
+	ld    s0, 0(sp)
+	csrw  CSR_SCAUSE, s3
+	csrw  CSR_SSTATUS, s1
+	csrw  CSR_SEPC, s0
+	ld    x31, 248(sp)
+	ld    x30, 240(sp)
+	ld    x29, 232(sp)
+	ld    x28, 224(sp)
+	ld    x27, 216(sp)
+	ld    x26, 208(sp)
+	ld    x25, 200(sp)
+	ld    x24, 192(sp)
+	ld    x23, 184(sp)
+	ld    x22, 176(sp)
+	ld    x21, 168(sp)
+	ld    x20, 160(sp)
+	ld    x19, 152(sp)
+	ld    x18, 144(sp)
+	ld    x17, 136(sp)
+	ld    x16, 128(sp)
+	ld    x15, 120(sp)
+	ld    x14, 112(sp)
+	ld    x13, 104(sp)
+	ld    x12, 96(sp)
+	ld    x11, 88(sp)
+	ld    x10, 80(sp)
+	ld    x9, 72(sp)
+	ld    x8, 64(sp)
+	ld    x7, 56(sp)
+	ld    x6, 48(sp)
+	ld    x5, 40(sp)
+	ld    x4, 32(sp)
+	ld    x3, 24(sp)
+	ld    x2, 16(sp)
+	ld    x1, 8(sp)
+	addi  sp, sp, (8*36)
+.endm
+
+.balign 4
+.global exception_vectors
+exception_vectors:
+	save_context
+	move  a0, sp
+	call  route_exception
+	restore_context
+	sret
diff --git a/tools/testing/selftests/kvm/lib/riscv/processor.c b/tools/testing/selftests/kvm/lib/riscv/processor.c
new file mode 100644
index 000000000000..2eac7d4b59e9
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/riscv/processor.c
@@ -0,0 +1,517 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RISC-V code
+ *
+ * Copyright (C) 2021 Western Digital Corporation or its affiliates.
+ */
+
+#include <linux/compiler.h>
+#include <assert.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#define DEFAULT_RISCV_GUEST_STACK_VADDR_MIN	0xac0000
+
+static vm_vaddr_t exception_handlers;
+
+bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext)
+{
+	unsigned long value = 0;
+	int ret;
+
+	ret = __vcpu_get_reg(vcpu, ext, &value);
+
+	return !ret && !!value;
+}
+
+static uint64_t page_align(struct kvm_vm *vm, uint64_t v)
+{
+	return (v + vm->page_size) & ~(vm->page_size - 1);
+}
+
+static uint64_t pte_addr(struct kvm_vm *vm, uint64_t entry)
+{
+	return ((entry & PGTBL_PTE_ADDR_MASK) >> PGTBL_PTE_ADDR_SHIFT) <<
+		PGTBL_PAGE_SIZE_SHIFT;
+}
+
+static uint64_t ptrs_per_pte(struct kvm_vm *vm)
+{
+	return PGTBL_PAGE_SIZE / sizeof(uint64_t);
+}
+
+static uint64_t pte_index_mask[] = {
+	PGTBL_L0_INDEX_MASK,
+	PGTBL_L1_INDEX_MASK,
+	PGTBL_L2_INDEX_MASK,
+	PGTBL_L3_INDEX_MASK,
+};
+
+static uint32_t pte_index_shift[] = {
+	PGTBL_L0_INDEX_SHIFT,
+	PGTBL_L1_INDEX_SHIFT,
+	PGTBL_L2_INDEX_SHIFT,
+	PGTBL_L3_INDEX_SHIFT,
+};
+
+static uint64_t pte_index(struct kvm_vm *vm, vm_vaddr_t gva, int level)
+{
+	TEST_ASSERT(level > -1,
+		"Negative page table level (%d) not possible", level);
+	TEST_ASSERT(level < vm->pgtable_levels,
+		"Invalid page table level (%d)", level);
+
+	return (gva & pte_index_mask[level]) >> pte_index_shift[level];
+}
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
+{
+	size_t nr_pages = page_align(vm, ptrs_per_pte(vm) * 8) / vm->page_size;
+
+	if (vm->pgd_created)
+		return;
+
+	vm->pgd = vm_phy_pages_alloc(vm, nr_pages,
+				     KVM_GUEST_PAGE_TABLE_MIN_PADDR,
+				     vm->memslots[MEM_REGION_PT]);
+	vm->pgd_created = true;
+}
+
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	uint64_t *ptep, next_ppn;
+	int level = vm->pgtable_levels - 1;
+
+	TEST_ASSERT((vaddr % vm->page_size) == 0,
+		"Virtual address not on page boundary,\n"
+		"  vaddr: 0x%lx vm->page_size: 0x%x", vaddr, vm->page_size);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,
+		(vaddr >> vm->page_shift)),
+		"Invalid virtual address, vaddr: 0x%lx", vaddr);
+	TEST_ASSERT((paddr % vm->page_size) == 0,
+		"Physical address not on page boundary,\n"
+		"  paddr: 0x%lx vm->page_size: 0x%x", paddr, vm->page_size);
+	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,
+		"Physical address beyond maximum supported,\n"
+		"  paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		paddr, vm->max_gfn, vm->page_size);
+
+	ptep = addr_gpa2hva(vm, vm->pgd) + pte_index(vm, vaddr, level) * 8;
+	if (!*ptep) {
+		next_ppn = vm_alloc_page_table(vm) >> PGTBL_PAGE_SIZE_SHIFT;
+		*ptep = (next_ppn << PGTBL_PTE_ADDR_SHIFT) |
+			PGTBL_PTE_VALID_MASK;
+	}
+	level--;
+
+	while (level > -1) {
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) +
+		       pte_index(vm, vaddr, level) * 8;
+		if (!*ptep && level > 0) {
+			next_ppn = vm_alloc_page_table(vm) >>
+				   PGTBL_PAGE_SIZE_SHIFT;
+			*ptep = (next_ppn << PGTBL_PTE_ADDR_SHIFT) |
+				PGTBL_PTE_VALID_MASK;
+		}
+		level--;
+	}
+
+	paddr = paddr >> PGTBL_PAGE_SIZE_SHIFT;
+	*ptep = (paddr << PGTBL_PTE_ADDR_SHIFT) |
+		PGTBL_PTE_PERM_MASK | PGTBL_PTE_VALID_MASK;
+}
+
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	uint64_t *ptep;
+	int level = vm->pgtable_levels - 1;
+
+	if (!vm->pgd_created)
+		goto unmapped_gva;
+
+	ptep = addr_gpa2hva(vm, vm->pgd) + pte_index(vm, gva, level) * 8;
+	if (!ptep)
+		goto unmapped_gva;
+	level--;
+
+	while (level > -1) {
+		ptep = addr_gpa2hva(vm, pte_addr(vm, *ptep)) +
+		       pte_index(vm, gva, level) * 8;
+		if (!ptep)
+			goto unmapped_gva;
+		level--;
+	}
+
+	return pte_addr(vm, *ptep) + (gva & (vm->page_size - 1));
+
+unmapped_gva:
+	TEST_FAIL("No mapping for vm virtual address gva: 0x%lx level: %d",
+		  gva, level);
+	exit(1);
+}
+
+static void pte_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent,
+		     uint64_t page, int level)
+{
+#ifdef DEBUG
+	static const char *const type[] = { "pte", "pmd", "pud", "p4d"};
+	uint64_t pte, *ptep;
+
+	if (level < 0)
+		return;
+
+	for (pte = page; pte < page + ptrs_per_pte(vm) * 8; pte += 8) {
+		ptep = addr_gpa2hva(vm, pte);
+		if (!*ptep)
+			continue;
+		fprintf(stream, "%*s%s: %lx: %lx at %p\n", indent, "",
+			type[level], pte, *ptep, ptep);
+		pte_dump(stream, vm, indent + 1,
+			 pte_addr(vm, *ptep), level - 1);
+	}
+#endif
+}
+
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	int level = vm->pgtable_levels - 1;
+	uint64_t pgd, *ptep;
+
+	if (!vm->pgd_created)
+		return;
+
+	for (pgd = vm->pgd; pgd < vm->pgd + ptrs_per_pte(vm) * 8; pgd += 8) {
+		ptep = addr_gpa2hva(vm, pgd);
+		if (!*ptep)
+			continue;
+		fprintf(stream, "%*spgd: %lx: %lx at %p\n", indent, "",
+			pgd, *ptep, ptep);
+		pte_dump(stream, vm, indent + 1,
+			 pte_addr(vm, *ptep), level - 1);
+	}
+}
+
+void riscv_vcpu_mmu_setup(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	unsigned long satp;
+
+	/*
+	 * The RISC-V Sv48 MMU mode supports 56-bit physical address
+	 * for 48-bit virtual address with 4KB last level page size.
+	 */
+	switch (vm->mode) {
+	case VM_MODE_P52V48_4K:
+	case VM_MODE_P48V48_4K:
+	case VM_MODE_P40V48_4K:
+		break;
+	default:
+		TEST_FAIL("Unknown guest mode, mode: 0x%x", vm->mode);
+	}
+
+	satp = (vm->pgd >> PGTBL_PAGE_SIZE_SHIFT) & SATP_PPN;
+	satp |= SATP_MODE_48;
+
+	vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(satp), satp);
+}
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
+{
+	struct kvm_riscv_core core;
+
+	core.mode = vcpu_get_reg(vcpu, RISCV_CORE_REG(mode));
+	core.regs.pc = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.pc));
+	core.regs.ra = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.ra));
+	core.regs.sp = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.sp));
+	core.regs.gp = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.gp));
+	core.regs.tp = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.tp));
+	core.regs.t0 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t0));
+	core.regs.t1 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t1));
+	core.regs.t2 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t2));
+	core.regs.s0 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s0));
+	core.regs.s1 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s1));
+	core.regs.a0 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a0));
+	core.regs.a1 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a1));
+	core.regs.a2 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a2));
+	core.regs.a3 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a3));
+	core.regs.a4 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a4));
+	core.regs.a5 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a5));
+	core.regs.a6 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a6));
+	core.regs.a7 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.a7));
+	core.regs.s2 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s2));
+	core.regs.s3 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s3));
+	core.regs.s4 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s4));
+	core.regs.s5 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s5));
+	core.regs.s6 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s6));
+	core.regs.s7 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s7));
+	core.regs.s8 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s8));
+	core.regs.s9 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s9));
+	core.regs.s10 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s10));
+	core.regs.s11 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.s11));
+	core.regs.t3 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t3));
+	core.regs.t4 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t4));
+	core.regs.t5 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t5));
+	core.regs.t6 = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.t6));
+
+	fprintf(stream,
+		" MODE:  0x%lx\n", core.mode);
+	fprintf(stream,
+		" PC: 0x%016lx   RA: 0x%016lx SP: 0x%016lx GP: 0x%016lx\n",
+		core.regs.pc, core.regs.ra, core.regs.sp, core.regs.gp);
+	fprintf(stream,
+		" TP: 0x%016lx   T0: 0x%016lx T1: 0x%016lx T2: 0x%016lx\n",
+		core.regs.tp, core.regs.t0, core.regs.t1, core.regs.t2);
+	fprintf(stream,
+		" S0: 0x%016lx   S1: 0x%016lx A0: 0x%016lx A1: 0x%016lx\n",
+		core.regs.s0, core.regs.s1, core.regs.a0, core.regs.a1);
+	fprintf(stream,
+		" A2: 0x%016lx   A3: 0x%016lx A4: 0x%016lx A5: 0x%016lx\n",
+		core.regs.a2, core.regs.a3, core.regs.a4, core.regs.a5);
+	fprintf(stream,
+		" A6: 0x%016lx   A7: 0x%016lx S2: 0x%016lx S3: 0x%016lx\n",
+		core.regs.a6, core.regs.a7, core.regs.s2, core.regs.s3);
+	fprintf(stream,
+		" S4: 0x%016lx   S5: 0x%016lx S6: 0x%016lx S7: 0x%016lx\n",
+		core.regs.s4, core.regs.s5, core.regs.s6, core.regs.s7);
+	fprintf(stream,
+		" S8: 0x%016lx   S9: 0x%016lx S10: 0x%016lx S11: 0x%016lx\n",
+		core.regs.s8, core.regs.s9, core.regs.s10, core.regs.s11);
+	fprintf(stream,
+		" T3: 0x%016lx   T4: 0x%016lx T5: 0x%016lx T6: 0x%016lx\n",
+		core.regs.t3, core.regs.t4, core.regs.t5, core.regs.t6);
+}
+
+static void __aligned(16) guest_unexp_trap(void)
+{
+	sbi_ecall(KVM_RISCV_SELFTESTS_SBI_EXT,
+		  KVM_RISCV_SELFTESTS_SBI_UNEXP,
+		  0, 0, 0, 0, 0, 0);
+}
+
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code)
+{
+	vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.pc), (unsigned long)guest_code);
+}
+
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	int r;
+	size_t stack_size;
+	unsigned long stack_vaddr;
+	unsigned long current_gp = 0;
+	struct kvm_mp_state mps;
+	struct kvm_vcpu *vcpu;
+
+	stack_size = vm->page_size == 4096 ? DEFAULT_STACK_PGS * vm->page_size :
+					     vm->page_size;
+	stack_vaddr = __vm_vaddr_alloc(vm, stack_size,
+				       DEFAULT_RISCV_GUEST_STACK_VADDR_MIN,
+				       MEM_REGION_DATA);
+
+	vcpu = __vm_vcpu_add(vm, vcpu_id);
+	riscv_vcpu_mmu_setup(vcpu);
+
+	/*
+	 * With SBI HSM support in KVM RISC-V, all secondary VCPUs are
+	 * powered-off by default so we ensure that all secondary VCPUs
+	 * are powered-on using KVM_SET_MP_STATE ioctl().
+	 */
+	mps.mp_state = KVM_MP_STATE_RUNNABLE;
+	r = __vcpu_ioctl(vcpu, KVM_SET_MP_STATE, &mps);
+	TEST_ASSERT(!r, "IOCTL KVM_SET_MP_STATE failed (error %d)", r);
+
+	/* Setup global pointer of guest to be same as the host */
+	asm volatile (
+		"add %0, gp, zero" : "=r" (current_gp) : : "memory");
+	vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.gp), current_gp);
+
+	/* Setup stack pointer and program counter of guest */
+	vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.sp), stack_vaddr + stack_size);
+
+	/* Setup sscratch for guest_get_vcpuid() */
+	vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(sscratch), vcpu_id);
+
+	/* Setup default exception vector of guest */
+	vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(stvec), (unsigned long)guest_unexp_trap);
+
+	return vcpu;
+}
+
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
+{
+	va_list ap;
+	uint64_t id = RISCV_CORE_REG(regs.a0);
+	int i;
+
+	TEST_ASSERT(num >= 1 && num <= 8, "Unsupported number of args,\n"
+		    "  num: %u", num);
+
+	va_start(ap, num);
+
+	for (i = 0; i < num; i++) {
+		switch (i) {
+		case 0:
+			id = RISCV_CORE_REG(regs.a0);
+			break;
+		case 1:
+			id = RISCV_CORE_REG(regs.a1);
+			break;
+		case 2:
+			id = RISCV_CORE_REG(regs.a2);
+			break;
+		case 3:
+			id = RISCV_CORE_REG(regs.a3);
+			break;
+		case 4:
+			id = RISCV_CORE_REG(regs.a4);
+			break;
+		case 5:
+			id = RISCV_CORE_REG(regs.a5);
+			break;
+		case 6:
+			id = RISCV_CORE_REG(regs.a6);
+			break;
+		case 7:
+			id = RISCV_CORE_REG(regs.a7);
+			break;
+		}
+		vcpu_set_reg(vcpu, id, va_arg(ap, uint64_t));
+	}
+
+	va_end(ap);
+}
+
+void kvm_exit_unexpected_exception(int vector, int ec)
+{
+	ucall(UCALL_UNHANDLED, 2, vector, ec);
+}
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) == UCALL_UNHANDLED) {
+		TEST_FAIL("Unexpected exception (vector:0x%lx, ec:0x%lx)",
+			uc.args[0], uc.args[1]);
+	}
+}
+
+struct handlers {
+	exception_handler_fn exception_handlers[NR_VECTORS][NR_EXCEPTIONS];
+};
+
+void route_exception(struct pt_regs *regs)
+{
+	struct handlers *handlers = (struct handlers *)exception_handlers;
+	int vector = 0, ec;
+
+	ec = regs->cause & ~CAUSE_IRQ_FLAG;
+	if (ec >= NR_EXCEPTIONS)
+		goto unexpected_exception;
+
+	/* Use the same handler for all the interrupts */
+	if (regs->cause & CAUSE_IRQ_FLAG) {
+		vector = 1;
+		ec = 0;
+	}
+
+	if (handlers && handlers->exception_handlers[vector][ec])
+		return handlers->exception_handlers[vector][ec](regs);
+
+unexpected_exception:
+	return kvm_exit_unexpected_exception(vector, ec);
+}
+
+void vcpu_init_vector_tables(struct kvm_vcpu *vcpu)
+{
+	extern char exception_vectors;
+
+	vcpu_set_reg(vcpu, RISCV_GENERAL_CSR_REG(stvec), (unsigned long)&exception_vectors);
+}
+
+void vm_init_vector_tables(struct kvm_vm *vm)
+{
+	vm->handlers = __vm_vaddr_alloc(vm, sizeof(struct handlers),
+				   vm->page_size, MEM_REGION_DATA);
+
+	*(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers;
+}
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector, exception_handler_fn handler)
+{
+	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);
+
+	assert(vector < NR_EXCEPTIONS);
+	handlers->exception_handlers[0][vector] = handler;
+}
+
+void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handler)
+{
+	struct handlers *handlers = addr_gva2hva(vm, vm->handlers);
+
+	handlers->exception_handlers[1][0] = handler;
+}
+
+uint32_t guest_get_vcpuid(void)
+{
+	return csr_read(CSR_SSCRATCH);
+}
+
+struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0,
+			unsigned long arg1, unsigned long arg2,
+			unsigned long arg3, unsigned long arg4,
+			unsigned long arg5)
+{
+	register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0);
+	register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1);
+	register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2);
+	register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3);
+	register uintptr_t a4 asm ("a4") = (uintptr_t)(arg4);
+	register uintptr_t a5 asm ("a5") = (uintptr_t)(arg5);
+	register uintptr_t a6 asm ("a6") = (uintptr_t)(fid);
+	register uintptr_t a7 asm ("a7") = (uintptr_t)(ext);
+	struct sbiret ret;
+
+	asm volatile (
+		"ecall"
+		: "+r" (a0), "+r" (a1)
+		: "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), "r" (a7)
+		: "memory");
+	ret.error = a0;
+	ret.value = a1;
+
+	return ret;
+}
+
+bool guest_sbi_probe_extension(int extid, long *out_val)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_PROBE_EXT, extid,
+			0, 0, 0, 0, 0);
+
+	__GUEST_ASSERT(!ret.error || ret.error == SBI_ERR_NOT_SUPPORTED,
+		       "ret.error=%ld, ret.value=%ld\n", ret.error, ret.value);
+
+	if (ret.error == SBI_ERR_NOT_SUPPORTED)
+		return false;
+
+	if (out_val)
+		*out_val = ret.value;
+
+	return true;
+}
+
+unsigned long get_host_sbi_spec_version(void)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_GET_SPEC_VERSION, 0,
+		       0, 0, 0, 0, 0);
+
+	GUEST_ASSERT(!ret.error);
+
+	return ret.value;
+}
diff --git a/tools/testing/selftests/kvm/lib/riscv/ucall.c b/tools/testing/selftests/kvm/lib/riscv/ucall.c
new file mode 100644
index 000000000000..b5035c63d516
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/riscv/ucall.c
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucall support. A ucall is a "hypercall to userspace".
+ *
+ * Copyright (C) 2021 Western Digital Corporation or its affiliates.
+ */
+
+#include <linux/kvm.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "sbi.h"
+
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	if (run->exit_reason == KVM_EXIT_RISCV_SBI &&
+	    run->riscv_sbi.extension_id == KVM_RISCV_SELFTESTS_SBI_EXT) {
+		switch (run->riscv_sbi.function_id) {
+		case KVM_RISCV_SELFTESTS_SBI_UCALL:
+			return (void *)run->riscv_sbi.args[0];
+		case KVM_RISCV_SELFTESTS_SBI_UNEXP:
+			vcpu_dump(stderr, vcpu, 2);
+			TEST_ASSERT(0, "Unexpected trap taken by guest");
+			break;
+		default:
+			break;
+		}
+	}
+	return NULL;
+}
diff --git a/tools/testing/selftests/kvm/lib/s390/diag318_test_handler.c b/tools/testing/selftests/kvm/lib/s390/diag318_test_handler.c
new file mode 100644
index 000000000000..2c432fa164f1
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/s390/diag318_test_handler.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test handler for the s390x DIAGNOSE 0x0318 instruction.
+ *
+ * Copyright (C) 2020, IBM
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+
+#define ICPT_INSTRUCTION	0x04
+#define IPA0_DIAG		0x8300
+
+static void guest_code(void)
+{
+	uint64_t diag318_info = 0x12345678;
+
+	asm volatile ("diag %0,0,0x318\n" : : "d" (diag318_info));
+}
+
+/*
+ * The DIAGNOSE 0x0318 instruction call must be handled via userspace. As such,
+ * we create an ad-hoc VM here to handle the instruction then extract the
+ * necessary data. It is up to the caller to decide what to do with that data.
+ */
+static uint64_t diag318_handler(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_run *run;
+	uint64_t reg;
+	uint64_t diag318_info;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vcpu_run(vcpu);
+	run = vcpu->run;
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT(run->s390_sieic.icptcode == ICPT_INSTRUCTION,
+		    "Unexpected intercept code: 0x%x", run->s390_sieic.icptcode);
+	TEST_ASSERT((run->s390_sieic.ipa & 0xff00) == IPA0_DIAG,
+		    "Unexpected IPA0 code: 0x%x", (run->s390_sieic.ipa & 0xff00));
+
+	reg = (run->s390_sieic.ipa & 0x00f0) >> 4;
+	diag318_info = run->s.regs.gprs[reg];
+
+	TEST_ASSERT(diag318_info != 0, "DIAGNOSE 0x0318 info not set");
+
+	kvm_vm_free(vm);
+
+	return diag318_info;
+}
+
+uint64_t get_diag318_info(void)
+{
+	static uint64_t diag318_info;
+	static bool printed_skip;
+
+	/*
+	 * If KVM does not support diag318, then return 0 to
+	 * ensure tests do not break.
+	 */
+	if (!kvm_has_cap(KVM_CAP_S390_DIAG318)) {
+		if (!printed_skip) {
+			fprintf(stdout, "KVM_CAP_S390_DIAG318 not supported. "
+				"Skipping diag318 test.\n");
+			printed_skip = true;
+		}
+		return 0;
+	}
+
+	/*
+	 * If a test has previously requested the diag318 info,
+	 * then don't bother spinning up a temporary VM again.
+	 */
+	if (!diag318_info)
+		diag318_info = diag318_handler();
+
+	return diag318_info;
+}
diff --git a/tools/testing/selftests/kvm/lib/s390/facility.c b/tools/testing/selftests/kvm/lib/s390/facility.c
new file mode 100644
index 000000000000..d540812d911a
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/s390/facility.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ *  Hariharan Mari <hari55@linux.ibm.com>
+ *
+ * Contains the definition for the global variables to have the test facitlity feature.
+ */
+
+#include "facility.h"
+
+uint64_t stfl_doublewords[NB_STFL_DOUBLEWORDS];
+bool stfle_flag;
diff --git a/tools/testing/selftests/kvm/lib/s390/processor.c b/tools/testing/selftests/kvm/lib/s390/processor.c
new file mode 100644
index 000000000000..8ceeb17c819a
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/s390/processor.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * KVM selftest s390x library code - CPU-related functions (page tables...)
+ *
+ * Copyright (C) 2019, Red Hat, Inc.
+ */
+
+#include "processor.h"
+#include "kvm_util.h"
+
+#define PAGES_PER_REGION 4
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
+{
+	vm_paddr_t paddr;
+
+	TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x",
+		    vm->page_size);
+
+	if (vm->pgd_created)
+		return;
+
+	paddr = vm_phy_pages_alloc(vm, PAGES_PER_REGION,
+				   KVM_GUEST_PAGE_TABLE_MIN_PADDR,
+				   vm->memslots[MEM_REGION_PT]);
+	memset(addr_gpa2hva(vm, paddr), 0xff, PAGES_PER_REGION * vm->page_size);
+
+	vm->pgd = paddr;
+	vm->pgd_created = true;
+}
+
+/*
+ * Allocate 4 pages for a region/segment table (ri < 4), or one page for
+ * a page table (ri == 4). Returns a suitable region/segment table entry
+ * which points to the freshly allocated pages.
+ */
+static uint64_t virt_alloc_region(struct kvm_vm *vm, int ri)
+{
+	uint64_t taddr;
+
+	taddr = vm_phy_pages_alloc(vm,  ri < 4 ? PAGES_PER_REGION : 1,
+				   KVM_GUEST_PAGE_TABLE_MIN_PADDR, 0);
+	memset(addr_gpa2hva(vm, taddr), 0xff, PAGES_PER_REGION * vm->page_size);
+
+	return (taddr & REGION_ENTRY_ORIGIN)
+		| (((4 - ri) << 2) & REGION_ENTRY_TYPE)
+		| ((ri < 4 ? (PAGES_PER_REGION - 1) : 0) & REGION_ENTRY_LENGTH);
+}
+
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t gva, uint64_t gpa)
+{
+	int ri, idx;
+	uint64_t *entry;
+
+	TEST_ASSERT((gva % vm->page_size) == 0,
+		"Virtual address not on page boundary,\n"
+		"  vaddr: 0x%lx vm->page_size: 0x%x",
+		gva, vm->page_size);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,
+		(gva >> vm->page_shift)),
+		"Invalid virtual address, vaddr: 0x%lx",
+		gva);
+	TEST_ASSERT((gpa % vm->page_size) == 0,
+		"Physical address not on page boundary,\n"
+		"  paddr: 0x%lx vm->page_size: 0x%x",
+		gva, vm->page_size);
+	TEST_ASSERT((gpa >> vm->page_shift) <= vm->max_gfn,
+		"Physical address beyond beyond maximum supported,\n"
+		"  paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		gva, vm->max_gfn, vm->page_size);
+
+	/* Walk through region and segment tables */
+	entry = addr_gpa2hva(vm, vm->pgd);
+	for (ri = 1; ri <= 4; ri++) {
+		idx = (gva >> (64 - 11 * ri)) & 0x7ffu;
+		if (entry[idx] & REGION_ENTRY_INVALID)
+			entry[idx] = virt_alloc_region(vm, ri);
+		entry = addr_gpa2hva(vm, entry[idx] & REGION_ENTRY_ORIGIN);
+	}
+
+	/* Fill in page table entry */
+	idx = (gva >> PAGE_SHIFT) & 0x0ffu;		/* page index */
+	if (!(entry[idx] & PAGE_INVALID))
+		fprintf(stderr,
+			"WARNING: PTE for gpa=0x%"PRIx64" already set!\n", gpa);
+	entry[idx] = gpa;
+}
+
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	int ri, idx;
+	uint64_t *entry;
+
+	TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x",
+		    vm->page_size);
+
+	entry = addr_gpa2hva(vm, vm->pgd);
+	for (ri = 1; ri <= 4; ri++) {
+		idx = (gva >> (64 - 11 * ri)) & 0x7ffu;
+		TEST_ASSERT(!(entry[idx] & REGION_ENTRY_INVALID),
+			    "No region mapping for vm virtual address 0x%lx",
+			    gva);
+		entry = addr_gpa2hva(vm, entry[idx] & REGION_ENTRY_ORIGIN);
+	}
+
+	idx = (gva >> PAGE_SHIFT) & 0x0ffu;		/* page index */
+
+	TEST_ASSERT(!(entry[idx] & PAGE_INVALID),
+		    "No page mapping for vm virtual address 0x%lx", gva);
+
+	return (entry[idx] & ~0xffful) + (gva & 0xffful);
+}
+
+static void virt_dump_ptes(FILE *stream, struct kvm_vm *vm, uint8_t indent,
+			   uint64_t ptea_start)
+{
+	uint64_t *pte, ptea;
+
+	for (ptea = ptea_start; ptea < ptea_start + 0x100 * 8; ptea += 8) {
+		pte = addr_gpa2hva(vm, ptea);
+		if (*pte & PAGE_INVALID)
+			continue;
+		fprintf(stream, "%*spte @ 0x%lx: 0x%016lx\n",
+			indent, "", ptea, *pte);
+	}
+}
+
+static void virt_dump_region(FILE *stream, struct kvm_vm *vm, uint8_t indent,
+			     uint64_t reg_tab_addr)
+{
+	uint64_t addr, *entry;
+
+	for (addr = reg_tab_addr; addr < reg_tab_addr + 0x400 * 8; addr += 8) {
+		entry = addr_gpa2hva(vm, addr);
+		if (*entry & REGION_ENTRY_INVALID)
+			continue;
+		fprintf(stream, "%*srt%lde @ 0x%lx: 0x%016lx\n",
+			indent, "", 4 - ((*entry & REGION_ENTRY_TYPE) >> 2),
+			addr, *entry);
+		if (*entry & REGION_ENTRY_TYPE) {
+			virt_dump_region(stream, vm, indent + 2,
+					 *entry & REGION_ENTRY_ORIGIN);
+		} else {
+			virt_dump_ptes(stream, vm, indent + 2,
+				       *entry & REGION_ENTRY_ORIGIN);
+		}
+	}
+}
+
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	if (!vm->pgd_created)
+		return;
+
+	virt_dump_region(stream, vm, indent, vm->pgd);
+}
+
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code)
+{
+	vcpu->run->psw_addr = (uintptr_t)guest_code;
+}
+
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	size_t stack_size =  DEFAULT_STACK_PGS * getpagesize();
+	uint64_t stack_vaddr;
+	struct kvm_regs regs;
+	struct kvm_sregs sregs;
+	struct kvm_vcpu *vcpu;
+
+	TEST_ASSERT(vm->page_size == PAGE_SIZE, "Unsupported page size: 0x%x",
+		    vm->page_size);
+
+	stack_vaddr = __vm_vaddr_alloc(vm, stack_size,
+				       DEFAULT_GUEST_STACK_VADDR_MIN,
+				       MEM_REGION_DATA);
+
+	vcpu = __vm_vcpu_add(vm, vcpu_id);
+
+	/* Setup guest registers */
+	vcpu_regs_get(vcpu, &regs);
+	regs.gprs[15] = stack_vaddr + (DEFAULT_STACK_PGS * getpagesize()) - 160;
+	vcpu_regs_set(vcpu, &regs);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	sregs.crs[0] |= 0x00040000;		/* Enable floating point regs */
+	sregs.crs[1] = vm->pgd | 0xf;		/* Primary region table */
+	vcpu_sregs_set(vcpu, &sregs);
+
+	vcpu->run->psw_mask = 0x0400000180000000ULL;  /* DAT enabled + 64 bit mode */
+
+	return vcpu;
+}
+
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
+{
+	va_list ap;
+	struct kvm_regs regs;
+	int i;
+
+	TEST_ASSERT(num >= 1 && num <= 5, "Unsupported number of args,\n"
+		    "  num: %u",
+		    num);
+
+	va_start(ap, num);
+	vcpu_regs_get(vcpu, &regs);
+
+	for (i = 0; i < num; i++)
+		regs.gprs[i + 2] = va_arg(ap, uint64_t);
+
+	vcpu_regs_set(vcpu, &regs);
+	va_end(ap);
+}
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
+{
+	fprintf(stream, "%*spstate: psw: 0x%.16llx:0x%.16llx\n",
+		indent, "", vcpu->run->psw_mask, vcpu->run->psw_addr);
+}
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
+{
+}
+
+bool kvm_arch_has_default_irqchip(void)
+{
+	return true;
+}
diff --git a/tools/testing/selftests/kvm/lib/s390/ucall.c b/tools/testing/selftests/kvm/lib/s390/ucall.c
new file mode 100644
index 000000000000..cca98734653d
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/s390/ucall.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucall support. A ucall is a "hypercall to userspace".
+ *
+ * Copyright (C) 2019 Red Hat, Inc.
+ */
+#include "kvm_util.h"
+
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	if (run->exit_reason == KVM_EXIT_S390_SIEIC &&
+	    run->s390_sieic.icptcode == 4 &&
+	    (run->s390_sieic.ipa >> 8) == 0x83 &&    /* 0x83 means DIAGNOSE */
+	    (run->s390_sieic.ipb >> 16) == 0x501) {
+		int reg = run->s390_sieic.ipa & 0xf;
+
+		return (void *)run->s.regs.gprs[reg];
+	}
+	return NULL;
+}
diff --git a/tools/testing/selftests/kvm/lib/sparsebit.c b/tools/testing/selftests/kvm/lib/sparsebit.c
new file mode 100644
index 000000000000..a99188f87a38
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/sparsebit.c
@@ -0,0 +1,2084 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Sparse bit array
+ *
+ * Copyright (C) 2018, Google LLC.
+ * Copyright (C) 2018, Red Hat, Inc. (code style cleanup and fuzzing driver)
+ *
+ * This library provides functions to support a memory efficient bit array,
+ * with an index size of 2^64.  A sparsebit array is allocated through
+ * the use sparsebit_alloc() and free'd via sparsebit_free(),
+ * such as in the following:
+ *
+ *   struct sparsebit *s;
+ *   s = sparsebit_alloc();
+ *   sparsebit_free(&s);
+ *
+ * The struct sparsebit type resolves down to a struct sparsebit.
+ * Note that, sparsebit_free() takes a pointer to the sparsebit
+ * structure.  This is so that sparsebit_free() is able to poison
+ * the pointer (e.g. set it to NULL) to the struct sparsebit before
+ * returning to the caller.
+ *
+ * Between the return of sparsebit_alloc() and the call of
+ * sparsebit_free(), there are multiple query and modifying operations
+ * that can be performed on the allocated sparsebit array.  All of
+ * these operations take as a parameter the value returned from
+ * sparsebit_alloc() and most also take a bit index.  Frequently
+ * used routines include:
+ *
+ *  ---- Query Operations
+ *  sparsebit_is_set(s, idx)
+ *  sparsebit_is_clear(s, idx)
+ *  sparsebit_any_set(s)
+ *  sparsebit_first_set(s)
+ *  sparsebit_next_set(s, prev_idx)
+ *
+ *  ---- Modifying Operations
+ *  sparsebit_set(s, idx)
+ *  sparsebit_clear(s, idx)
+ *  sparsebit_set_num(s, idx, num);
+ *  sparsebit_clear_num(s, idx, num);
+ *
+ * A common operation, is to itterate over all the bits set in a test
+ * sparsebit array.  This can be done via code with the following structure:
+ *
+ *   sparsebit_idx_t idx;
+ *   if (sparsebit_any_set(s)) {
+ *     idx = sparsebit_first_set(s);
+ *     do {
+ *       ...
+ *       idx = sparsebit_next_set(s, idx);
+ *     } while (idx != 0);
+ *   }
+ *
+ * The index of the first bit set needs to be obtained via
+ * sparsebit_first_set(), because sparsebit_next_set(), needs
+ * the index of the previously set.  The sparsebit_idx_t type is
+ * unsigned, so there is no previous index before 0 that is available.
+ * Also, the call to sparsebit_first_set() is not made unless there
+ * is at least 1 bit in the array set.  This is because sparsebit_first_set()
+ * aborts if sparsebit_first_set() is called with no bits set.
+ * It is the callers responsibility to assure that the
+ * sparsebit array has at least a single bit set before calling
+ * sparsebit_first_set().
+ *
+ * ==== Implementation Overview ====
+ * For the most part the internal implementation of sparsebit is
+ * opaque to the caller.  One important implementation detail that the
+ * caller may need to be aware of is the spatial complexity of the
+ * implementation.  This implementation of a sparsebit array is not
+ * only sparse, in that it uses memory proportional to the number of bits
+ * set.  It is also efficient in memory usage when most of the bits are
+ * set.
+ *
+ * At a high-level the state of the bit settings are maintained through
+ * the use of a binary-search tree, where each node contains at least
+ * the following members:
+ *
+ *   typedef uint64_t sparsebit_idx_t;
+ *   typedef uint64_t sparsebit_num_t;
+ *
+ *   sparsebit_idx_t idx;
+ *   uint32_t mask;
+ *   sparsebit_num_t num_after;
+ *
+ * The idx member contains the bit index of the first bit described by this
+ * node, while the mask member stores the setting of the first 32-bits.
+ * The setting of the bit at idx + n, where 0 <= n < 32, is located in the
+ * mask member at 1 << n.
+ *
+ * Nodes are sorted by idx and the bits described by two nodes will never
+ * overlap. The idx member is always aligned to the mask size, i.e. a
+ * multiple of 32.
+ *
+ * Beyond a typical implementation, the nodes in this implementation also
+ * contains a member named num_after.  The num_after member holds the
+ * number of bits immediately after the mask bits that are contiguously set.
+ * The use of the num_after member allows this implementation to efficiently
+ * represent cases where most bits are set.  For example, the case of all
+ * but the last two bits set, is represented by the following two nodes:
+ *
+ *   node 0 - idx: 0x0 mask: 0xffffffff num_after: 0xffffffffffffffc0
+ *   node 1 - idx: 0xffffffffffffffe0 mask: 0x3fffffff num_after: 0
+ *
+ * ==== Invariants ====
+ * This implementation usses the following invariants:
+ *
+ *   + Node are only used to represent bits that are set.
+ *     Nodes with a mask of 0 and num_after of 0 are not allowed.
+ *
+ *   + Sum of bits set in all the nodes is equal to the value of
+ *     the struct sparsebit_pvt num_set member.
+ *
+ *   + The setting of at least one bit is always described in a nodes
+ *     mask (mask >= 1).
+ *
+ *   + A node with all mask bits set only occurs when the last bit
+ *     described by the previous node is not equal to this nodes
+ *     starting index - 1.  All such occurrences of this condition are
+ *     avoided by moving the setting of the nodes mask bits into
+ *     the previous nodes num_after setting.
+ *
+ *   + Node starting index is evenly divisible by the number of bits
+ *     within a nodes mask member.
+ *
+ *   + Nodes never represent a range of bits that wrap around the
+ *     highest supported index.
+ *
+ *      (idx + MASK_BITS + num_after - 1) <= ((sparsebit_idx_t) 0) - 1)
+ *
+ *     As a consequence of the above, the num_after member of a node
+ *     will always be <=:
+ *
+ *       maximum_index - nodes_starting_index - number_of_mask_bits
+ *
+ *   + Nodes within the binary search tree are sorted based on each
+ *     nodes starting index.
+ *
+ *   + The range of bits described by any two nodes do not overlap.  The
+ *     range of bits described by a single node is:
+ *
+ *       start: node->idx
+ *       end (inclusive): node->idx + MASK_BITS + node->num_after - 1;
+ *
+ * Note, at times these invariants are temporarily violated for a
+ * specific portion of the code.  For example, when setting a mask
+ * bit, there is a small delay between when the mask bit is set and the
+ * value in the struct sparsebit_pvt num_set member is updated.  Other
+ * temporary violations occur when node_split() is called with a specified
+ * index and assures that a node where its mask represents the bit
+ * at the specified index exists.  At times to do this node_split()
+ * must split an existing node into two nodes or create a node that
+ * has no bits set.  Such temporary violations must be corrected before
+ * returning to the caller.  These corrections are typically performed
+ * by the local function node_reduce().
+ */
+
+#include "test_util.h"
+#include "sparsebit.h"
+#include <limits.h>
+#include <assert.h>
+
+#define DUMP_LINE_MAX 100 /* Does not include indent amount */
+
+typedef uint32_t mask_t;
+#define MASK_BITS (sizeof(mask_t) * CHAR_BIT)
+
+struct node {
+	struct node *parent;
+	struct node *left;
+	struct node *right;
+	sparsebit_idx_t idx; /* index of least-significant bit in mask */
+	sparsebit_num_t num_after; /* num contiguously set after mask */
+	mask_t mask;
+};
+
+struct sparsebit {
+	/*
+	 * Points to root node of the binary search
+	 * tree.  Equal to NULL when no bits are set in
+	 * the entire sparsebit array.
+	 */
+	struct node *root;
+
+	/*
+	 * A redundant count of the total number of bits set.  Used for
+	 * diagnostic purposes and to change the time complexity of
+	 * sparsebit_num_set() from O(n) to O(1).
+	 * Note: Due to overflow, a value of 0 means none or all set.
+	 */
+	sparsebit_num_t num_set;
+};
+
+/* Returns the number of set bits described by the settings
+ * of the node pointed to by nodep.
+ */
+static sparsebit_num_t node_num_set(struct node *nodep)
+{
+	return nodep->num_after + __builtin_popcount(nodep->mask);
+}
+
+/* Returns a pointer to the node that describes the
+ * lowest bit index.
+ */
+static struct node *node_first(const struct sparsebit *s)
+{
+	struct node *nodep;
+
+	for (nodep = s->root; nodep && nodep->left; nodep = nodep->left)
+		;
+
+	return nodep;
+}
+
+/* Returns a pointer to the node that describes the
+ * lowest bit index > the index of the node pointed to by np.
+ * Returns NULL if no node with a higher index exists.
+ */
+static struct node *node_next(const struct sparsebit *s, struct node *np)
+{
+	struct node *nodep = np;
+
+	/*
+	 * If current node has a right child, next node is the left-most
+	 * of the right child.
+	 */
+	if (nodep->right) {
+		for (nodep = nodep->right; nodep->left; nodep = nodep->left)
+			;
+		return nodep;
+	}
+
+	/*
+	 * No right child.  Go up until node is left child of a parent.
+	 * That parent is then the next node.
+	 */
+	while (nodep->parent && nodep == nodep->parent->right)
+		nodep = nodep->parent;
+
+	return nodep->parent;
+}
+
+/* Searches for and returns a pointer to the node that describes the
+ * highest index < the index of the node pointed to by np.
+ * Returns NULL if no node with a lower index exists.
+ */
+static struct node *node_prev(const struct sparsebit *s, struct node *np)
+{
+	struct node *nodep = np;
+
+	/*
+	 * If current node has a left child, next node is the right-most
+	 * of the left child.
+	 */
+	if (nodep->left) {
+		for (nodep = nodep->left; nodep->right; nodep = nodep->right)
+			;
+		return (struct node *) nodep;
+	}
+
+	/*
+	 * No left child.  Go up until node is right child of a parent.
+	 * That parent is then the next node.
+	 */
+	while (nodep->parent && nodep == nodep->parent->left)
+		nodep = nodep->parent;
+
+	return (struct node *) nodep->parent;
+}
+
+
+/* Allocates space to hold a copy of the node sub-tree pointed to by
+ * subtree and duplicates the bit settings to the newly allocated nodes.
+ * Returns the newly allocated copy of subtree.
+ */
+static struct node *node_copy_subtree(const struct node *subtree)
+{
+	struct node *root;
+
+	/* Duplicate the node at the root of the subtree */
+	root = calloc(1, sizeof(*root));
+	if (!root) {
+		perror("calloc");
+		abort();
+	}
+
+	root->idx = subtree->idx;
+	root->mask = subtree->mask;
+	root->num_after = subtree->num_after;
+
+	/* As needed, recursively duplicate the left and right subtrees */
+	if (subtree->left) {
+		root->left = node_copy_subtree(subtree->left);
+		root->left->parent = root;
+	}
+
+	if (subtree->right) {
+		root->right = node_copy_subtree(subtree->right);
+		root->right->parent = root;
+	}
+
+	return root;
+}
+
+/* Searches for and returns a pointer to the node that describes the setting
+ * of the bit given by idx.  A node describes the setting of a bit if its
+ * index is within the bits described by the mask bits or the number of
+ * contiguous bits set after the mask.  Returns NULL if there is no such node.
+ */
+static struct node *node_find(const struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep;
+
+	/* Find the node that describes the setting of the bit at idx */
+	for (nodep = s->root; nodep;
+	     nodep = nodep->idx > idx ? nodep->left : nodep->right) {
+		if (idx >= nodep->idx &&
+		    idx <= nodep->idx + MASK_BITS + nodep->num_after - 1)
+			break;
+	}
+
+	return nodep;
+}
+
+/* Entry Requirements:
+ *   + A node that describes the setting of idx is not already present.
+ *
+ * Adds a new node to describe the setting of the bit at the index given
+ * by idx.  Returns a pointer to the newly added node.
+ *
+ * TODO(lhuemill): Degenerate cases causes the tree to get unbalanced.
+ */
+static struct node *node_add(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep, *parentp, *prev;
+
+	/* Allocate and initialize the new node. */
+	nodep = calloc(1, sizeof(*nodep));
+	if (!nodep) {
+		perror("calloc");
+		abort();
+	}
+
+	nodep->idx = idx & -MASK_BITS;
+
+	/* If no nodes, set it up as the root node. */
+	if (!s->root) {
+		s->root = nodep;
+		return nodep;
+	}
+
+	/*
+	 * Find the parent where the new node should be attached
+	 * and add the node there.
+	 */
+	parentp = s->root;
+	while (true) {
+		if (idx < parentp->idx) {
+			if (!parentp->left) {
+				parentp->left = nodep;
+				nodep->parent = parentp;
+				break;
+			}
+			parentp = parentp->left;
+		} else {
+			assert(idx > parentp->idx + MASK_BITS + parentp->num_after - 1);
+			if (!parentp->right) {
+				parentp->right = nodep;
+				nodep->parent = parentp;
+				break;
+			}
+			parentp = parentp->right;
+		}
+	}
+
+	/*
+	 * Does num_after bits of previous node overlap with the mask
+	 * of the new node?  If so set the bits in the new nodes mask
+	 * and reduce the previous nodes num_after.
+	 */
+	prev = node_prev(s, nodep);
+	while (prev && prev->idx + MASK_BITS + prev->num_after - 1 >= nodep->idx) {
+		unsigned int n1 = (prev->idx + MASK_BITS + prev->num_after - 1)
+			- nodep->idx;
+		assert(prev->num_after > 0);
+		assert(n1 < MASK_BITS);
+		assert(!(nodep->mask & (1 << n1)));
+		nodep->mask |= (1 << n1);
+		prev->num_after--;
+	}
+
+	return nodep;
+}
+
+/* Returns whether all the bits in the sparsebit array are set.  */
+bool sparsebit_all_set(const struct sparsebit *s)
+{
+	/*
+	 * If any nodes there must be at least one bit set.  Only case
+	 * where a bit is set and total num set is 0, is when all bits
+	 * are set.
+	 */
+	return s->root && s->num_set == 0;
+}
+
+/* Clears all bits described by the node pointed to by nodep, then
+ * removes the node.
+ */
+static void node_rm(struct sparsebit *s, struct node *nodep)
+{
+	struct node *tmp;
+	sparsebit_num_t num_set;
+
+	num_set = node_num_set(nodep);
+	assert(s->num_set >= num_set || sparsebit_all_set(s));
+	s->num_set -= node_num_set(nodep);
+
+	/* Have both left and right child */
+	if (nodep->left && nodep->right) {
+		/*
+		 * Move left children to the leftmost leaf node
+		 * of the right child.
+		 */
+		for (tmp = nodep->right; tmp->left; tmp = tmp->left)
+			;
+		tmp->left = nodep->left;
+		nodep->left = NULL;
+		tmp->left->parent = tmp;
+	}
+
+	/* Left only child */
+	if (nodep->left) {
+		if (!nodep->parent) {
+			s->root = nodep->left;
+			nodep->left->parent = NULL;
+		} else {
+			nodep->left->parent = nodep->parent;
+			if (nodep == nodep->parent->left)
+				nodep->parent->left = nodep->left;
+			else {
+				assert(nodep == nodep->parent->right);
+				nodep->parent->right = nodep->left;
+			}
+		}
+
+		nodep->parent = nodep->left = nodep->right = NULL;
+		free(nodep);
+
+		return;
+	}
+
+
+	/* Right only child */
+	if (nodep->right) {
+		if (!nodep->parent) {
+			s->root = nodep->right;
+			nodep->right->parent = NULL;
+		} else {
+			nodep->right->parent = nodep->parent;
+			if (nodep == nodep->parent->left)
+				nodep->parent->left = nodep->right;
+			else {
+				assert(nodep == nodep->parent->right);
+				nodep->parent->right = nodep->right;
+			}
+		}
+
+		nodep->parent = nodep->left = nodep->right = NULL;
+		free(nodep);
+
+		return;
+	}
+
+	/* Leaf Node */
+	if (!nodep->parent) {
+		s->root = NULL;
+	} else {
+		if (nodep->parent->left == nodep)
+			nodep->parent->left = NULL;
+		else {
+			assert(nodep == nodep->parent->right);
+			nodep->parent->right = NULL;
+		}
+	}
+
+	nodep->parent = nodep->left = nodep->right = NULL;
+	free(nodep);
+
+	return;
+}
+
+/* Splits the node containing the bit at idx so that there is a node
+ * that starts at the specified index.  If no such node exists, a new
+ * node at the specified index is created.  Returns the new node.
+ *
+ * idx must start of a mask boundary.
+ */
+static struct node *node_split(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep1, *nodep2;
+	sparsebit_idx_t offset;
+	sparsebit_num_t orig_num_after;
+
+	assert(!(idx % MASK_BITS));
+
+	/*
+	 * Is there a node that describes the setting of idx?
+	 * If not, add it.
+	 */
+	nodep1 = node_find(s, idx);
+	if (!nodep1)
+		return node_add(s, idx);
+
+	/*
+	 * All done if the starting index of the node is where the
+	 * split should occur.
+	 */
+	if (nodep1->idx == idx)
+		return nodep1;
+
+	/*
+	 * Split point not at start of mask, so it must be part of
+	 * bits described by num_after.
+	 */
+
+	/*
+	 * Calculate offset within num_after for where the split is
+	 * to occur.
+	 */
+	offset = idx - (nodep1->idx + MASK_BITS);
+	orig_num_after = nodep1->num_after;
+
+	/*
+	 * Add a new node to describe the bits starting at
+	 * the split point.
+	 */
+	nodep1->num_after = offset;
+	nodep2 = node_add(s, idx);
+
+	/* Move bits after the split point into the new node */
+	nodep2->num_after = orig_num_after - offset;
+	if (nodep2->num_after >= MASK_BITS) {
+		nodep2->mask = ~(mask_t) 0;
+		nodep2->num_after -= MASK_BITS;
+	} else {
+		nodep2->mask = (1 << nodep2->num_after) - 1;
+		nodep2->num_after = 0;
+	}
+
+	return nodep2;
+}
+
+/* Iteratively reduces the node pointed to by nodep and its adjacent
+ * nodes into a more compact form.  For example, a node with a mask with
+ * all bits set adjacent to a previous node, will get combined into a
+ * single node with an increased num_after setting.
+ *
+ * After each reduction, a further check is made to see if additional
+ * reductions are possible with the new previous and next nodes.  Note,
+ * a search for a reduction is only done across the nodes nearest nodep
+ * and those that became part of a reduction.  Reductions beyond nodep
+ * and the adjacent nodes that are reduced are not discovered.  It is the
+ * responsibility of the caller to pass a nodep that is within one node
+ * of each possible reduction.
+ *
+ * This function does not fix the temporary violation of all invariants.
+ * For example it does not fix the case where the bit settings described
+ * by two or more nodes overlap.  Such a violation introduces the potential
+ * complication of a bit setting for a specific index having different settings
+ * in different nodes.  This would then introduce the further complication
+ * of which node has the correct setting of the bit and thus such conditions
+ * are not allowed.
+ *
+ * This function is designed to fix invariant violations that are introduced
+ * by node_split() and by changes to the nodes mask or num_after members.
+ * For example, when setting a bit within a nodes mask, the function that
+ * sets the bit doesn't have to worry about whether the setting of that
+ * bit caused the mask to have leading only or trailing only bits set.
+ * Instead, the function can call node_reduce(), with nodep equal to the
+ * node address that it set a mask bit in, and node_reduce() will notice
+ * the cases of leading or trailing only bits and that there is an
+ * adjacent node that the bit settings could be merged into.
+ *
+ * This implementation specifically detects and corrects violation of the
+ * following invariants:
+ *
+ *   + Node are only used to represent bits that are set.
+ *     Nodes with a mask of 0 and num_after of 0 are not allowed.
+ *
+ *   + The setting of at least one bit is always described in a nodes
+ *     mask (mask >= 1).
+ *
+ *   + A node with all mask bits set only occurs when the last bit
+ *     described by the previous node is not equal to this nodes
+ *     starting index - 1.  All such occurrences of this condition are
+ *     avoided by moving the setting of the nodes mask bits into
+ *     the previous nodes num_after setting.
+ */
+static void node_reduce(struct sparsebit *s, struct node *nodep)
+{
+	bool reduction_performed;
+
+	do {
+		reduction_performed = false;
+		struct node *prev, *next, *tmp;
+
+		/* 1) Potential reductions within the current node. */
+
+		/* Nodes with all bits cleared may be removed. */
+		if (nodep->mask == 0 && nodep->num_after == 0) {
+			/*
+			 * About to remove the node pointed to by
+			 * nodep, which normally would cause a problem
+			 * for the next pass through the reduction loop,
+			 * because the node at the starting point no longer
+			 * exists.  This potential problem is handled
+			 * by first remembering the location of the next
+			 * or previous nodes.  Doesn't matter which, because
+			 * once the node at nodep is removed, there will be
+			 * no other nodes between prev and next.
+			 *
+			 * Note, the checks performed on nodep against both
+			 * both prev and next both check for an adjacent
+			 * node that can be reduced into a single node.  As
+			 * such, after removing the node at nodep, doesn't
+			 * matter whether the nodep for the next pass
+			 * through the loop is equal to the previous pass
+			 * prev or next node.  Either way, on the next pass
+			 * the one not selected will become either the
+			 * prev or next node.
+			 */
+			tmp = node_next(s, nodep);
+			if (!tmp)
+				tmp = node_prev(s, nodep);
+
+			node_rm(s, nodep);
+
+			nodep = tmp;
+			reduction_performed = true;
+			continue;
+		}
+
+		/*
+		 * When the mask is 0, can reduce the amount of num_after
+		 * bits by moving the initial num_after bits into the mask.
+		 */
+		if (nodep->mask == 0) {
+			assert(nodep->num_after != 0);
+			assert(nodep->idx + MASK_BITS > nodep->idx);
+
+			nodep->idx += MASK_BITS;
+
+			if (nodep->num_after >= MASK_BITS) {
+				nodep->mask = ~0;
+				nodep->num_after -= MASK_BITS;
+			} else {
+				nodep->mask = (1u << nodep->num_after) - 1;
+				nodep->num_after = 0;
+			}
+
+			reduction_performed = true;
+			continue;
+		}
+
+		/*
+		 * 2) Potential reductions between the current and
+		 * previous nodes.
+		 */
+		prev = node_prev(s, nodep);
+		if (prev) {
+			sparsebit_idx_t prev_highest_bit;
+
+			/* Nodes with no bits set can be removed. */
+			if (prev->mask == 0 && prev->num_after == 0) {
+				node_rm(s, prev);
+
+				reduction_performed = true;
+				continue;
+			}
+
+			/*
+			 * All mask bits set and previous node has
+			 * adjacent index.
+			 */
+			if (nodep->mask + 1 == 0 &&
+			    prev->idx + MASK_BITS == nodep->idx) {
+				prev->num_after += MASK_BITS + nodep->num_after;
+				nodep->mask = 0;
+				nodep->num_after = 0;
+
+				reduction_performed = true;
+				continue;
+			}
+
+			/*
+			 * Is node adjacent to previous node and the node
+			 * contains a single contiguous range of bits
+			 * starting from the beginning of the mask?
+			 */
+			prev_highest_bit = prev->idx + MASK_BITS - 1 + prev->num_after;
+			if (prev_highest_bit + 1 == nodep->idx &&
+			    (nodep->mask | (nodep->mask >> 1)) == nodep->mask) {
+				/*
+				 * How many contiguous bits are there?
+				 * Is equal to the total number of set
+				 * bits, due to an earlier check that
+				 * there is a single contiguous range of
+				 * set bits.
+				 */
+				unsigned int num_contiguous
+					= __builtin_popcount(nodep->mask);
+				assert((num_contiguous > 0) &&
+				       ((1ULL << num_contiguous) - 1) == nodep->mask);
+
+				prev->num_after += num_contiguous;
+				nodep->mask = 0;
+
+				/*
+				 * For predictable performance, handle special
+				 * case where all mask bits are set and there
+				 * is a non-zero num_after setting.  This code
+				 * is functionally correct without the following
+				 * conditionalized statements, but without them
+				 * the value of num_after is only reduced by
+				 * the number of mask bits per pass.  There are
+				 * cases where num_after can be close to 2^64.
+				 * Without this code it could take nearly
+				 * (2^64) / 32 passes to perform the full
+				 * reduction.
+				 */
+				if (num_contiguous == MASK_BITS) {
+					prev->num_after += nodep->num_after;
+					nodep->num_after = 0;
+				}
+
+				reduction_performed = true;
+				continue;
+			}
+		}
+
+		/*
+		 * 3) Potential reductions between the current and
+		 * next nodes.
+		 */
+		next = node_next(s, nodep);
+		if (next) {
+			/* Nodes with no bits set can be removed. */
+			if (next->mask == 0 && next->num_after == 0) {
+				node_rm(s, next);
+				reduction_performed = true;
+				continue;
+			}
+
+			/*
+			 * Is next node index adjacent to current node
+			 * and has a mask with all bits set?
+			 */
+			if (next->idx == nodep->idx + MASK_BITS + nodep->num_after &&
+			    next->mask == ~(mask_t) 0) {
+				nodep->num_after += MASK_BITS;
+				next->mask = 0;
+				nodep->num_after += next->num_after;
+				next->num_after = 0;
+
+				node_rm(s, next);
+				next = NULL;
+
+				reduction_performed = true;
+				continue;
+			}
+		}
+	} while (nodep && reduction_performed);
+}
+
+/* Returns whether the bit at the index given by idx, within the
+ * sparsebit array is set or not.
+ */
+bool sparsebit_is_set(const struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep;
+
+	/* Find the node that describes the setting of the bit at idx */
+	for (nodep = s->root; nodep;
+	     nodep = nodep->idx > idx ? nodep->left : nodep->right)
+		if (idx >= nodep->idx &&
+		    idx <= nodep->idx + MASK_BITS + nodep->num_after - 1)
+			goto have_node;
+
+	return false;
+
+have_node:
+	/* Bit is set if it is any of the bits described by num_after */
+	if (nodep->num_after && idx >= nodep->idx + MASK_BITS)
+		return true;
+
+	/* Is the corresponding mask bit set */
+	assert(idx >= nodep->idx && idx - nodep->idx < MASK_BITS);
+	return !!(nodep->mask & (1 << (idx - nodep->idx)));
+}
+
+/* Within the sparsebit array pointed to by s, sets the bit
+ * at the index given by idx.
+ */
+static void bit_set(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep;
+
+	/* Skip bits that are already set */
+	if (sparsebit_is_set(s, idx))
+		return;
+
+	/*
+	 * Get a node where the bit at idx is described by the mask.
+	 * The node_split will also create a node, if there isn't
+	 * already a node that describes the setting of bit.
+	 */
+	nodep = node_split(s, idx & -MASK_BITS);
+
+	/* Set the bit within the nodes mask */
+	assert(idx >= nodep->idx && idx <= nodep->idx + MASK_BITS - 1);
+	assert(!(nodep->mask & (1 << (idx - nodep->idx))));
+	nodep->mask |= 1 << (idx - nodep->idx);
+	s->num_set++;
+
+	node_reduce(s, nodep);
+}
+
+/* Within the sparsebit array pointed to by s, clears the bit
+ * at the index given by idx.
+ */
+static void bit_clear(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	struct node *nodep;
+
+	/* Skip bits that are already cleared */
+	if (!sparsebit_is_set(s, idx))
+		return;
+
+	/* Is there a node that describes the setting of this bit? */
+	nodep = node_find(s, idx);
+	if (!nodep)
+		return;
+
+	/*
+	 * If a num_after bit, split the node, so that the bit is
+	 * part of a node mask.
+	 */
+	if (idx >= nodep->idx + MASK_BITS)
+		nodep = node_split(s, idx & -MASK_BITS);
+
+	/*
+	 * After node_split above, bit at idx should be within the mask.
+	 * Clear that bit.
+	 */
+	assert(idx >= nodep->idx && idx <= nodep->idx + MASK_BITS - 1);
+	assert(nodep->mask & (1 << (idx - nodep->idx)));
+	nodep->mask &= ~(1 << (idx - nodep->idx));
+	assert(s->num_set > 0 || sparsebit_all_set(s));
+	s->num_set--;
+
+	node_reduce(s, nodep);
+}
+
+/* Recursively dumps to the FILE stream given by stream the contents
+ * of the sub-tree of nodes pointed to by nodep.  Each line of output
+ * is prefixed by the number of spaces given by indent.  On each
+ * recursion, the indent amount is increased by 2.  This causes nodes
+ * at each level deeper into the binary search tree to be displayed
+ * with a greater indent.
+ */
+static void dump_nodes(FILE *stream, struct node *nodep,
+	unsigned int indent)
+{
+	char *node_type;
+
+	/* Dump contents of node */
+	if (!nodep->parent)
+		node_type = "root";
+	else if (nodep == nodep->parent->left)
+		node_type = "left";
+	else {
+		assert(nodep == nodep->parent->right);
+		node_type = "right";
+	}
+	fprintf(stream, "%*s---- %s nodep: %p\n", indent, "", node_type, nodep);
+	fprintf(stream, "%*s  parent: %p left: %p right: %p\n", indent, "",
+		nodep->parent, nodep->left, nodep->right);
+	fprintf(stream, "%*s  idx: 0x%lx mask: 0x%x num_after: 0x%lx\n",
+		indent, "", nodep->idx, nodep->mask, nodep->num_after);
+
+	/* If present, dump contents of left child nodes */
+	if (nodep->left)
+		dump_nodes(stream, nodep->left, indent + 2);
+
+	/* If present, dump contents of right child nodes */
+	if (nodep->right)
+		dump_nodes(stream, nodep->right, indent + 2);
+}
+
+static inline sparsebit_idx_t node_first_set(struct node *nodep, int start)
+{
+	mask_t leading = (mask_t)1 << start;
+	int n1 = __builtin_ctz(nodep->mask & -leading);
+
+	return nodep->idx + n1;
+}
+
+static inline sparsebit_idx_t node_first_clear(struct node *nodep, int start)
+{
+	mask_t leading = (mask_t)1 << start;
+	int n1 = __builtin_ctz(~nodep->mask & -leading);
+
+	return nodep->idx + n1;
+}
+
+/* Dumps to the FILE stream specified by stream, the implementation dependent
+ * internal state of s.  Each line of output is prefixed with the number
+ * of spaces given by indent.  The output is completely implementation
+ * dependent and subject to change.  Output from this function should only
+ * be used for diagnostic purposes.  For example, this function can be
+ * used by test cases after they detect an unexpected condition, as a means
+ * to capture diagnostic information.
+ */
+static void sparsebit_dump_internal(FILE *stream, const struct sparsebit *s,
+	unsigned int indent)
+{
+	/* Dump the contents of s */
+	fprintf(stream, "%*sroot: %p\n", indent, "", s->root);
+	fprintf(stream, "%*snum_set: 0x%lx\n", indent, "", s->num_set);
+
+	if (s->root)
+		dump_nodes(stream, s->root, indent);
+}
+
+/* Allocates and returns a new sparsebit array. The initial state
+ * of the newly allocated sparsebit array has all bits cleared.
+ */
+struct sparsebit *sparsebit_alloc(void)
+{
+	struct sparsebit *s;
+
+	/* Allocate top level structure. */
+	s = calloc(1, sizeof(*s));
+	if (!s) {
+		perror("calloc");
+		abort();
+	}
+
+	return s;
+}
+
+/* Frees the implementation dependent data for the sparsebit array
+ * pointed to by s and poisons the pointer to that data.
+ */
+void sparsebit_free(struct sparsebit **sbitp)
+{
+	struct sparsebit *s = *sbitp;
+
+	if (!s)
+		return;
+
+	sparsebit_clear_all(s);
+	free(s);
+	*sbitp = NULL;
+}
+
+/* Makes a copy of the sparsebit array given by s, to the sparsebit
+ * array given by d.  Note, d must have already been allocated via
+ * sparsebit_alloc().  It can though already have bits set, which
+ * if different from src will be cleared.
+ */
+void sparsebit_copy(struct sparsebit *d, const struct sparsebit *s)
+{
+	/* First clear any bits already set in the destination */
+	sparsebit_clear_all(d);
+
+	if (s->root) {
+		d->root = node_copy_subtree(s->root);
+		d->num_set = s->num_set;
+	}
+}
+
+/* Returns whether num consecutive bits starting at idx are all set.  */
+bool sparsebit_is_set_num(const struct sparsebit *s,
+	sparsebit_idx_t idx, sparsebit_num_t num)
+{
+	sparsebit_idx_t next_cleared;
+
+	assert(num > 0);
+	assert(idx + num - 1 >= idx);
+
+	/* With num > 0, the first bit must be set. */
+	if (!sparsebit_is_set(s, idx))
+		return false;
+
+	/* Find the next cleared bit */
+	next_cleared = sparsebit_next_clear(s, idx);
+
+	/*
+	 * If no cleared bits beyond idx, then there are at least num
+	 * set bits. idx + num doesn't wrap.  Otherwise check if
+	 * there are enough set bits between idx and the next cleared bit.
+	 */
+	return next_cleared == 0 || next_cleared - idx >= num;
+}
+
+/* Returns whether the bit at the index given by idx.  */
+bool sparsebit_is_clear(const struct sparsebit *s,
+	sparsebit_idx_t idx)
+{
+	return !sparsebit_is_set(s, idx);
+}
+
+/* Returns whether num consecutive bits starting at idx are all cleared.  */
+bool sparsebit_is_clear_num(const struct sparsebit *s,
+	sparsebit_idx_t idx, sparsebit_num_t num)
+{
+	sparsebit_idx_t next_set;
+
+	assert(num > 0);
+	assert(idx + num - 1 >= idx);
+
+	/* With num > 0, the first bit must be cleared. */
+	if (!sparsebit_is_clear(s, idx))
+		return false;
+
+	/* Find the next set bit */
+	next_set = sparsebit_next_set(s, idx);
+
+	/*
+	 * If no set bits beyond idx, then there are at least num
+	 * cleared bits. idx + num doesn't wrap.  Otherwise check if
+	 * there are enough cleared bits between idx and the next set bit.
+	 */
+	return next_set == 0 || next_set - idx >= num;
+}
+
+/* Returns the total number of bits set.  Note: 0 is also returned for
+ * the case of all bits set.  This is because with all bits set, there
+ * is 1 additional bit set beyond what can be represented in the return
+ * value.  Use sparsebit_any_set(), instead of sparsebit_num_set() > 0,
+ * to determine if the sparsebit array has any bits set.
+ */
+sparsebit_num_t sparsebit_num_set(const struct sparsebit *s)
+{
+	return s->num_set;
+}
+
+/* Returns whether any bit is set in the sparsebit array.  */
+bool sparsebit_any_set(const struct sparsebit *s)
+{
+	/*
+	 * Nodes only describe set bits.  If any nodes then there
+	 * is at least 1 bit set.
+	 */
+	if (!s->root)
+		return false;
+
+	/*
+	 * Every node should have a non-zero mask.  For now will
+	 * just assure that the root node has a non-zero mask,
+	 * which is a quick check that at least 1 bit is set.
+	 */
+	assert(s->root->mask != 0);
+	assert(s->num_set > 0 ||
+	       (s->root->num_after == ((sparsebit_num_t) 0) - MASK_BITS &&
+		s->root->mask == ~(mask_t) 0));
+
+	return true;
+}
+
+/* Returns whether all the bits in the sparsebit array are cleared.  */
+bool sparsebit_all_clear(const struct sparsebit *s)
+{
+	return !sparsebit_any_set(s);
+}
+
+/* Returns whether all the bits in the sparsebit array are set.  */
+bool sparsebit_any_clear(const struct sparsebit *s)
+{
+	return !sparsebit_all_set(s);
+}
+
+/* Returns the index of the first set bit.  Abort if no bits are set.
+ */
+sparsebit_idx_t sparsebit_first_set(const struct sparsebit *s)
+{
+	struct node *nodep;
+
+	/* Validate at least 1 bit is set */
+	assert(sparsebit_any_set(s));
+
+	nodep = node_first(s);
+	return node_first_set(nodep, 0);
+}
+
+/* Returns the index of the first cleared bit.  Abort if
+ * no bits are cleared.
+ */
+sparsebit_idx_t sparsebit_first_clear(const struct sparsebit *s)
+{
+	struct node *nodep1, *nodep2;
+
+	/* Validate at least 1 bit is cleared. */
+	assert(sparsebit_any_clear(s));
+
+	/* If no nodes or first node index > 0 then lowest cleared is 0 */
+	nodep1 = node_first(s);
+	if (!nodep1 || nodep1->idx > 0)
+		return 0;
+
+	/* Does the mask in the first node contain any cleared bits. */
+	if (nodep1->mask != ~(mask_t) 0)
+		return node_first_clear(nodep1, 0);
+
+	/*
+	 * All mask bits set in first node.  If there isn't a second node
+	 * then the first cleared bit is the first bit after the bits
+	 * described by the first node.
+	 */
+	nodep2 = node_next(s, nodep1);
+	if (!nodep2) {
+		/*
+		 * No second node.  First cleared bit is first bit beyond
+		 * bits described by first node.
+		 */
+		assert(nodep1->mask == ~(mask_t) 0);
+		assert(nodep1->idx + MASK_BITS + nodep1->num_after != (sparsebit_idx_t) 0);
+		return nodep1->idx + MASK_BITS + nodep1->num_after;
+	}
+
+	/*
+	 * There is a second node.
+	 * If it is not adjacent to the first node, then there is a gap
+	 * of cleared bits between the nodes, and the first cleared bit
+	 * is the first bit within the gap.
+	 */
+	if (nodep1->idx + MASK_BITS + nodep1->num_after != nodep2->idx)
+		return nodep1->idx + MASK_BITS + nodep1->num_after;
+
+	/*
+	 * Second node is adjacent to the first node.
+	 * Because it is adjacent, its mask should be non-zero.  If all
+	 * its mask bits are set, then with it being adjacent, it should
+	 * have had the mask bits moved into the num_after setting of the
+	 * previous node.
+	 */
+	return node_first_clear(nodep2, 0);
+}
+
+/* Returns index of next bit set within s after the index given by prev.
+ * Returns 0 if there are no bits after prev that are set.
+ */
+sparsebit_idx_t sparsebit_next_set(const struct sparsebit *s,
+	sparsebit_idx_t prev)
+{
+	sparsebit_idx_t lowest_possible = prev + 1;
+	sparsebit_idx_t start;
+	struct node *nodep;
+
+	/* A bit after the highest index can't be set. */
+	if (lowest_possible == 0)
+		return 0;
+
+	/*
+	 * Find the leftmost 'candidate' overlapping or to the right
+	 * of lowest_possible.
+	 */
+	struct node *candidate = NULL;
+
+	/* True iff lowest_possible is within candidate */
+	bool contains = false;
+
+	/*
+	 * Find node that describes setting of bit at lowest_possible.
+	 * If such a node doesn't exist, find the node with the lowest
+	 * starting index that is > lowest_possible.
+	 */
+	for (nodep = s->root; nodep;) {
+		if ((nodep->idx + MASK_BITS + nodep->num_after - 1)
+			>= lowest_possible) {
+			candidate = nodep;
+			if (candidate->idx <= lowest_possible) {
+				contains = true;
+				break;
+			}
+			nodep = nodep->left;
+		} else {
+			nodep = nodep->right;
+		}
+	}
+	if (!candidate)
+		return 0;
+
+	assert(candidate->mask != 0);
+
+	/* Does the candidate node describe the setting of lowest_possible? */
+	if (!contains) {
+		/*
+		 * Candidate doesn't describe setting of bit at lowest_possible.
+		 * Candidate points to the first node with a starting index
+		 * > lowest_possible.
+		 */
+		assert(candidate->idx > lowest_possible);
+
+		return node_first_set(candidate, 0);
+	}
+
+	/*
+	 * Candidate describes setting of bit at lowest_possible.
+	 * Note: although the node describes the setting of the bit
+	 * at lowest_possible, its possible that its setting and the
+	 * setting of all latter bits described by this node are 0.
+	 * For now, just handle the cases where this node describes
+	 * a bit at or after an index of lowest_possible that is set.
+	 */
+	start = lowest_possible - candidate->idx;
+
+	if (start < MASK_BITS && candidate->mask >= (1 << start))
+		return node_first_set(candidate, start);
+
+	if (candidate->num_after) {
+		sparsebit_idx_t first_num_after_idx = candidate->idx + MASK_BITS;
+
+		return lowest_possible < first_num_after_idx
+			? first_num_after_idx : lowest_possible;
+	}
+
+	/*
+	 * Although candidate node describes setting of bit at
+	 * the index of lowest_possible, all bits at that index and
+	 * latter that are described by candidate are cleared.  With
+	 * this, the next bit is the first bit in the next node, if
+	 * such a node exists.  If a next node doesn't exist, then
+	 * there is no next set bit.
+	 */
+	candidate = node_next(s, candidate);
+	if (!candidate)
+		return 0;
+
+	return node_first_set(candidate, 0);
+}
+
+/* Returns index of next bit cleared within s after the index given by prev.
+ * Returns 0 if there are no bits after prev that are cleared.
+ */
+sparsebit_idx_t sparsebit_next_clear(const struct sparsebit *s,
+	sparsebit_idx_t prev)
+{
+	sparsebit_idx_t lowest_possible = prev + 1;
+	sparsebit_idx_t idx;
+	struct node *nodep1, *nodep2;
+
+	/* A bit after the highest index can't be set. */
+	if (lowest_possible == 0)
+		return 0;
+
+	/*
+	 * Does a node describing the setting of lowest_possible exist?
+	 * If not, the bit at lowest_possible is cleared.
+	 */
+	nodep1 = node_find(s, lowest_possible);
+	if (!nodep1)
+		return lowest_possible;
+
+	/* Does a mask bit in node 1 describe the next cleared bit. */
+	for (idx = lowest_possible - nodep1->idx; idx < MASK_BITS; idx++)
+		if (!(nodep1->mask & (1 << idx)))
+			return nodep1->idx + idx;
+
+	/*
+	 * Next cleared bit is not described by node 1.  If there
+	 * isn't a next node, then next cleared bit is described
+	 * by bit after the bits described by the first node.
+	 */
+	nodep2 = node_next(s, nodep1);
+	if (!nodep2)
+		return nodep1->idx + MASK_BITS + nodep1->num_after;
+
+	/*
+	 * There is a second node.
+	 * If it is not adjacent to the first node, then there is a gap
+	 * of cleared bits between the nodes, and the next cleared bit
+	 * is the first bit within the gap.
+	 */
+	if (nodep1->idx + MASK_BITS + nodep1->num_after != nodep2->idx)
+		return nodep1->idx + MASK_BITS + nodep1->num_after;
+
+	/*
+	 * Second node is adjacent to the first node.
+	 * Because it is adjacent, its mask should be non-zero.  If all
+	 * its mask bits are set, then with it being adjacent, it should
+	 * have had the mask bits moved into the num_after setting of the
+	 * previous node.
+	 */
+	return node_first_clear(nodep2, 0);
+}
+
+/* Starting with the index 1 greater than the index given by start, finds
+ * and returns the index of the first sequence of num consecutively set
+ * bits.  Returns a value of 0 of no such sequence exists.
+ */
+sparsebit_idx_t sparsebit_next_set_num(const struct sparsebit *s,
+	sparsebit_idx_t start, sparsebit_num_t num)
+{
+	sparsebit_idx_t idx;
+
+	assert(num >= 1);
+
+	for (idx = sparsebit_next_set(s, start);
+		idx != 0 && idx + num - 1 >= idx;
+		idx = sparsebit_next_set(s, idx)) {
+		assert(sparsebit_is_set(s, idx));
+
+		/*
+		 * Does the sequence of bits starting at idx consist of
+		 * num set bits?
+		 */
+		if (sparsebit_is_set_num(s, idx, num))
+			return idx;
+
+		/*
+		 * Sequence of set bits at idx isn't large enough.
+		 * Skip this entire sequence of set bits.
+		 */
+		idx = sparsebit_next_clear(s, idx);
+		if (idx == 0)
+			return 0;
+	}
+
+	return 0;
+}
+
+/* Starting with the index 1 greater than the index given by start, finds
+ * and returns the index of the first sequence of num consecutively cleared
+ * bits.  Returns a value of 0 of no such sequence exists.
+ */
+sparsebit_idx_t sparsebit_next_clear_num(const struct sparsebit *s,
+	sparsebit_idx_t start, sparsebit_num_t num)
+{
+	sparsebit_idx_t idx;
+
+	assert(num >= 1);
+
+	for (idx = sparsebit_next_clear(s, start);
+		idx != 0 && idx + num - 1 >= idx;
+		idx = sparsebit_next_clear(s, idx)) {
+		assert(sparsebit_is_clear(s, idx));
+
+		/*
+		 * Does the sequence of bits starting at idx consist of
+		 * num cleared bits?
+		 */
+		if (sparsebit_is_clear_num(s, idx, num))
+			return idx;
+
+		/*
+		 * Sequence of cleared bits at idx isn't large enough.
+		 * Skip this entire sequence of cleared bits.
+		 */
+		idx = sparsebit_next_set(s, idx);
+		if (idx == 0)
+			return 0;
+	}
+
+	return 0;
+}
+
+/* Sets the bits * in the inclusive range idx through idx + num - 1.  */
+void sparsebit_set_num(struct sparsebit *s,
+	sparsebit_idx_t start, sparsebit_num_t num)
+{
+	struct node *nodep, *next;
+	unsigned int n1;
+	sparsebit_idx_t idx;
+	sparsebit_num_t n;
+	sparsebit_idx_t middle_start, middle_end;
+
+	assert(num > 0);
+	assert(start + num - 1 >= start);
+
+	/*
+	 * Leading - bits before first mask boundary.
+	 *
+	 * TODO(lhuemill): With some effort it may be possible to
+	 *   replace the following loop with a sequential sequence
+	 *   of statements.  High level sequence would be:
+	 *
+	 *     1. Use node_split() to force node that describes setting
+	 *        of idx to be within the mask portion of a node.
+	 *     2. Form mask of bits to be set.
+	 *     3. Determine number of mask bits already set in the node
+	 *        and store in a local variable named num_already_set.
+	 *     4. Set the appropriate mask bits within the node.
+	 *     5. Increment struct sparsebit_pvt num_set member
+	 *        by the number of bits that were actually set.
+	 *        Exclude from the counts bits that were already set.
+	 *     6. Before returning to the caller, use node_reduce() to
+	 *        handle the multiple corner cases that this method
+	 *        introduces.
+	 */
+	for (idx = start, n = num; n > 0 && idx % MASK_BITS != 0; idx++, n--)
+		bit_set(s, idx);
+
+	/* Middle - bits spanning one or more entire mask */
+	middle_start = idx;
+	middle_end = middle_start + (n & -MASK_BITS) - 1;
+	if (n >= MASK_BITS) {
+		nodep = node_split(s, middle_start);
+
+		/*
+		 * As needed, split just after end of middle bits.
+		 * No split needed if end of middle bits is at highest
+		 * supported bit index.
+		 */
+		if (middle_end + 1 > middle_end)
+			(void) node_split(s, middle_end + 1);
+
+		/* Delete nodes that only describe bits within the middle. */
+		for (next = node_next(s, nodep);
+			next && (next->idx < middle_end);
+			next = node_next(s, nodep)) {
+			assert(next->idx + MASK_BITS + next->num_after - 1 <= middle_end);
+			node_rm(s, next);
+			next = NULL;
+		}
+
+		/* As needed set each of the mask bits */
+		for (n1 = 0; n1 < MASK_BITS; n1++) {
+			if (!(nodep->mask & (1 << n1))) {
+				nodep->mask |= 1 << n1;
+				s->num_set++;
+			}
+		}
+
+		s->num_set -= nodep->num_after;
+		nodep->num_after = middle_end - middle_start + 1 - MASK_BITS;
+		s->num_set += nodep->num_after;
+
+		node_reduce(s, nodep);
+	}
+	idx = middle_end + 1;
+	n -= middle_end - middle_start + 1;
+
+	/* Trailing - bits at and beyond last mask boundary */
+	assert(n < MASK_BITS);
+	for (; n > 0; idx++, n--)
+		bit_set(s, idx);
+}
+
+/* Clears the bits * in the inclusive range idx through idx + num - 1.  */
+void sparsebit_clear_num(struct sparsebit *s,
+	sparsebit_idx_t start, sparsebit_num_t num)
+{
+	struct node *nodep, *next;
+	unsigned int n1;
+	sparsebit_idx_t idx;
+	sparsebit_num_t n;
+	sparsebit_idx_t middle_start, middle_end;
+
+	assert(num > 0);
+	assert(start + num - 1 >= start);
+
+	/* Leading - bits before first mask boundary */
+	for (idx = start, n = num; n > 0 && idx % MASK_BITS != 0; idx++, n--)
+		bit_clear(s, idx);
+
+	/* Middle - bits spanning one or more entire mask */
+	middle_start = idx;
+	middle_end = middle_start + (n & -MASK_BITS) - 1;
+	if (n >= MASK_BITS) {
+		nodep = node_split(s, middle_start);
+
+		/*
+		 * As needed, split just after end of middle bits.
+		 * No split needed if end of middle bits is at highest
+		 * supported bit index.
+		 */
+		if (middle_end + 1 > middle_end)
+			(void) node_split(s, middle_end + 1);
+
+		/* Delete nodes that only describe bits within the middle. */
+		for (next = node_next(s, nodep);
+			next && (next->idx < middle_end);
+			next = node_next(s, nodep)) {
+			assert(next->idx + MASK_BITS + next->num_after - 1 <= middle_end);
+			node_rm(s, next);
+			next = NULL;
+		}
+
+		/* As needed clear each of the mask bits */
+		for (n1 = 0; n1 < MASK_BITS; n1++) {
+			if (nodep->mask & (1 << n1)) {
+				nodep->mask &= ~(1 << n1);
+				s->num_set--;
+			}
+		}
+
+		/* Clear any bits described by num_after */
+		s->num_set -= nodep->num_after;
+		nodep->num_after = 0;
+
+		/*
+		 * Delete the node that describes the beginning of
+		 * the middle bits and perform any allowed reductions
+		 * with the nodes prev or next of nodep.
+		 */
+		node_reduce(s, nodep);
+		nodep = NULL;
+	}
+	idx = middle_end + 1;
+	n -= middle_end - middle_start + 1;
+
+	/* Trailing - bits at and beyond last mask boundary */
+	assert(n < MASK_BITS);
+	for (; n > 0; idx++, n--)
+		bit_clear(s, idx);
+}
+
+/* Sets the bit at the index given by idx.  */
+void sparsebit_set(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	sparsebit_set_num(s, idx, 1);
+}
+
+/* Clears the bit at the index given by idx.  */
+void sparsebit_clear(struct sparsebit *s, sparsebit_idx_t idx)
+{
+	sparsebit_clear_num(s, idx, 1);
+}
+
+/* Sets the bits in the entire addressable range of the sparsebit array.  */
+void sparsebit_set_all(struct sparsebit *s)
+{
+	sparsebit_set(s, 0);
+	sparsebit_set_num(s, 1, ~(sparsebit_idx_t) 0);
+	assert(sparsebit_all_set(s));
+}
+
+/* Clears the bits in the entire addressable range of the sparsebit array.  */
+void sparsebit_clear_all(struct sparsebit *s)
+{
+	sparsebit_clear(s, 0);
+	sparsebit_clear_num(s, 1, ~(sparsebit_idx_t) 0);
+	assert(!sparsebit_any_set(s));
+}
+
+static size_t display_range(FILE *stream, sparsebit_idx_t low,
+	sparsebit_idx_t high, bool prepend_comma_space)
+{
+	char *fmt_str;
+	size_t sz;
+
+	/* Determine the printf format string */
+	if (low == high)
+		fmt_str = prepend_comma_space ? ", 0x%lx" : "0x%lx";
+	else
+		fmt_str = prepend_comma_space ? ", 0x%lx:0x%lx" : "0x%lx:0x%lx";
+
+	/*
+	 * When stream is NULL, just determine the size of what would
+	 * have been printed, else print the range.
+	 */
+	if (!stream)
+		sz = snprintf(NULL, 0, fmt_str, low, high);
+	else
+		sz = fprintf(stream, fmt_str, low, high);
+
+	return sz;
+}
+
+
+/* Dumps to the FILE stream given by stream, the bit settings
+ * of s.  Each line of output is prefixed with the number of
+ * spaces given by indent.  The length of each line is implementation
+ * dependent and does not depend on the indent amount.  The following
+ * is an example output of a sparsebit array that has bits:
+ *
+ *   0x5, 0x8, 0xa:0xe, 0x12
+ *
+ * This corresponds to a sparsebit whose bits 5, 8, 10, 11, 12, 13, 14, 18
+ * are set.  Note that a ':', instead of a '-' is used to specify a range of
+ * contiguous bits.  This is done because '-' is used to specify command-line
+ * options, and sometimes ranges are specified as command-line arguments.
+ */
+void sparsebit_dump(FILE *stream, const struct sparsebit *s,
+	unsigned int indent)
+{
+	size_t current_line_len = 0;
+	size_t sz;
+	struct node *nodep;
+
+	if (!sparsebit_any_set(s))
+		return;
+
+	/* Display initial indent */
+	fprintf(stream, "%*s", indent, "");
+
+	/* For each node */
+	for (nodep = node_first(s); nodep; nodep = node_next(s, nodep)) {
+		unsigned int n1;
+		sparsebit_idx_t low, high;
+
+		/* For each group of bits in the mask */
+		for (n1 = 0; n1 < MASK_BITS; n1++) {
+			if (nodep->mask & (1 << n1)) {
+				low = high = nodep->idx + n1;
+
+				for (; n1 < MASK_BITS; n1++) {
+					if (nodep->mask & (1 << n1))
+						high = nodep->idx + n1;
+					else
+						break;
+				}
+
+				if ((n1 == MASK_BITS) && nodep->num_after)
+					high += nodep->num_after;
+
+				/*
+				 * How much room will it take to display
+				 * this range.
+				 */
+				sz = display_range(NULL, low, high,
+					current_line_len != 0);
+
+				/*
+				 * If there is not enough room, display
+				 * a newline plus the indent of the next
+				 * line.
+				 */
+				if (current_line_len + sz > DUMP_LINE_MAX) {
+					fputs("\n", stream);
+					fprintf(stream, "%*s", indent, "");
+					current_line_len = 0;
+				}
+
+				/* Display the range */
+				sz = display_range(stream, low, high,
+					current_line_len != 0);
+				current_line_len += sz;
+			}
+		}
+
+		/*
+		 * If num_after and most significant-bit of mask is not
+		 * set, then still need to display a range for the bits
+		 * described by num_after.
+		 */
+		if (!(nodep->mask & (1 << (MASK_BITS - 1))) && nodep->num_after) {
+			low = nodep->idx + MASK_BITS;
+			high = nodep->idx + MASK_BITS + nodep->num_after - 1;
+
+			/*
+			 * How much room will it take to display
+			 * this range.
+			 */
+			sz = display_range(NULL, low, high,
+				current_line_len != 0);
+
+			/*
+			 * If there is not enough room, display
+			 * a newline plus the indent of the next
+			 * line.
+			 */
+			if (current_line_len + sz > DUMP_LINE_MAX) {
+				fputs("\n", stream);
+				fprintf(stream, "%*s", indent, "");
+				current_line_len = 0;
+			}
+
+			/* Display the range */
+			sz = display_range(stream, low, high,
+				current_line_len != 0);
+			current_line_len += sz;
+		}
+	}
+	fputs("\n", stream);
+}
+
+/* Validates the internal state of the sparsebit array given by
+ * s.  On error, diagnostic information is printed to stderr and
+ * abort is called.
+ */
+void sparsebit_validate_internal(const struct sparsebit *s)
+{
+	bool error_detected = false;
+	struct node *nodep, *prev = NULL;
+	sparsebit_num_t total_bits_set = 0;
+	unsigned int n1;
+
+	/* For each node */
+	for (nodep = node_first(s); nodep;
+		prev = nodep, nodep = node_next(s, nodep)) {
+
+		/*
+		 * Increase total bits set by the number of bits set
+		 * in this node.
+		 */
+		for (n1 = 0; n1 < MASK_BITS; n1++)
+			if (nodep->mask & (1 << n1))
+				total_bits_set++;
+
+		total_bits_set += nodep->num_after;
+
+		/*
+		 * Arbitrary choice as to whether a mask of 0 is allowed
+		 * or not.  For diagnostic purposes it is beneficial to
+		 * have only one valid means to represent a set of bits.
+		 * To support this an arbitrary choice has been made
+		 * to not allow a mask of zero.
+		 */
+		if (nodep->mask == 0) {
+			fprintf(stderr, "Node mask of zero, "
+				"nodep: %p nodep->mask: 0x%x",
+				nodep, nodep->mask);
+			error_detected = true;
+			break;
+		}
+
+		/*
+		 * Validate num_after is not greater than the max index
+		 * - the number of mask bits.  The num_after member
+		 * uses 0-based indexing and thus has no value that
+		 * represents all bits set.  This limitation is handled
+		 * by requiring a non-zero mask.  With a non-zero mask,
+		 * MASK_BITS worth of bits are described by the mask,
+		 * which makes the largest needed num_after equal to:
+		 *
+		 *    (~(sparsebit_num_t) 0) - MASK_BITS + 1
+		 */
+		if (nodep->num_after
+			> (~(sparsebit_num_t) 0) - MASK_BITS + 1) {
+			fprintf(stderr, "num_after too large, "
+				"nodep: %p nodep->num_after: 0x%lx",
+				nodep, nodep->num_after);
+			error_detected = true;
+			break;
+		}
+
+		/* Validate node index is divisible by the mask size */
+		if (nodep->idx % MASK_BITS) {
+			fprintf(stderr, "Node index not divisible by "
+				"mask size,\n"
+				"  nodep: %p nodep->idx: 0x%lx "
+				"MASK_BITS: %lu\n",
+				nodep, nodep->idx, MASK_BITS);
+			error_detected = true;
+			break;
+		}
+
+		/*
+		 * Validate bits described by node don't wrap beyond the
+		 * highest supported index.
+		 */
+		if ((nodep->idx + MASK_BITS + nodep->num_after - 1) < nodep->idx) {
+			fprintf(stderr, "Bits described by node wrap "
+				"beyond highest supported index,\n"
+				"  nodep: %p nodep->idx: 0x%lx\n"
+				"  MASK_BITS: %lu nodep->num_after: 0x%lx",
+				nodep, nodep->idx, MASK_BITS, nodep->num_after);
+			error_detected = true;
+			break;
+		}
+
+		/* Check parent pointers. */
+		if (nodep->left) {
+			if (nodep->left->parent != nodep) {
+				fprintf(stderr, "Left child parent pointer "
+					"doesn't point to this node,\n"
+					"  nodep: %p nodep->left: %p "
+					"nodep->left->parent: %p",
+					nodep, nodep->left,
+					nodep->left->parent);
+				error_detected = true;
+				break;
+			}
+		}
+
+		if (nodep->right) {
+			if (nodep->right->parent != nodep) {
+				fprintf(stderr, "Right child parent pointer "
+					"doesn't point to this node,\n"
+					"  nodep: %p nodep->right: %p "
+					"nodep->right->parent: %p",
+					nodep, nodep->right,
+					nodep->right->parent);
+				error_detected = true;
+				break;
+			}
+		}
+
+		if (!nodep->parent) {
+			if (s->root != nodep) {
+				fprintf(stderr, "Unexpected root node, "
+					"s->root: %p nodep: %p",
+					s->root, nodep);
+				error_detected = true;
+				break;
+			}
+		}
+
+		if (prev) {
+			/*
+			 * Is index of previous node before index of
+			 * current node?
+			 */
+			if (prev->idx >= nodep->idx) {
+				fprintf(stderr, "Previous node index "
+					">= current node index,\n"
+					"  prev: %p prev->idx: 0x%lx\n"
+					"  nodep: %p nodep->idx: 0x%lx",
+					prev, prev->idx, nodep, nodep->idx);
+				error_detected = true;
+				break;
+			}
+
+			/*
+			 * Nodes occur in asscending order, based on each
+			 * nodes starting index.
+			 */
+			if ((prev->idx + MASK_BITS + prev->num_after - 1)
+				>= nodep->idx) {
+				fprintf(stderr, "Previous node bit range "
+					"overlap with current node bit range,\n"
+					"  prev: %p prev->idx: 0x%lx "
+					"prev->num_after: 0x%lx\n"
+					"  nodep: %p nodep->idx: 0x%lx "
+					"nodep->num_after: 0x%lx\n"
+					"  MASK_BITS: %lu",
+					prev, prev->idx, prev->num_after,
+					nodep, nodep->idx, nodep->num_after,
+					MASK_BITS);
+				error_detected = true;
+				break;
+			}
+
+			/*
+			 * When the node has all mask bits set, it shouldn't
+			 * be adjacent to the last bit described by the
+			 * previous node.
+			 */
+			if (nodep->mask == ~(mask_t) 0 &&
+			    prev->idx + MASK_BITS + prev->num_after == nodep->idx) {
+				fprintf(stderr, "Current node has mask with "
+					"all bits set and is adjacent to the "
+					"previous node,\n"
+					"  prev: %p prev->idx: 0x%lx "
+					"prev->num_after: 0x%lx\n"
+					"  nodep: %p nodep->idx: 0x%lx "
+					"nodep->num_after: 0x%lx\n"
+					"  MASK_BITS: %lu",
+					prev, prev->idx, prev->num_after,
+					nodep, nodep->idx, nodep->num_after,
+					MASK_BITS);
+
+				error_detected = true;
+				break;
+			}
+		}
+	}
+
+	if (!error_detected) {
+		/*
+		 * Is sum of bits set in each node equal to the count
+		 * of total bits set.
+		 */
+		if (s->num_set != total_bits_set) {
+			fprintf(stderr, "Number of bits set mismatch,\n"
+				"  s->num_set: 0x%lx total_bits_set: 0x%lx",
+				s->num_set, total_bits_set);
+
+			error_detected = true;
+		}
+	}
+
+	if (error_detected) {
+		fputs("  dump_internal:\n", stderr);
+		sparsebit_dump_internal(stderr, s, 4);
+		abort();
+	}
+}
+
+
+#ifdef FUZZ
+/* A simple but effective fuzzing driver.  Look for bugs with the help
+ * of some invariants and of a trivial representation of sparsebit.
+ * Just use 512 bytes of /dev/zero and /dev/urandom as inputs, and let
+ * afl-fuzz do the magic. :)
+ */
+
+#include <stdlib.h>
+
+struct range {
+	sparsebit_idx_t first, last;
+	bool set;
+};
+
+struct sparsebit *s;
+struct range ranges[1000];
+int num_ranges;
+
+static bool get_value(sparsebit_idx_t idx)
+{
+	int i;
+
+	for (i = num_ranges; --i >= 0; )
+		if (ranges[i].first <= idx && idx <= ranges[i].last)
+			return ranges[i].set;
+
+	return false;
+}
+
+static void operate(int code, sparsebit_idx_t first, sparsebit_idx_t last)
+{
+	sparsebit_num_t num;
+	sparsebit_idx_t next;
+
+	if (first < last) {
+		num = last - first + 1;
+	} else {
+		num = first - last + 1;
+		first = last;
+		last = first + num - 1;
+	}
+
+	switch (code) {
+	case 0:
+		sparsebit_set(s, first);
+		assert(sparsebit_is_set(s, first));
+		assert(!sparsebit_is_clear(s, first));
+		assert(sparsebit_any_set(s));
+		assert(!sparsebit_all_clear(s));
+		if (get_value(first))
+			return;
+		if (num_ranges == 1000)
+			exit(0);
+		ranges[num_ranges++] = (struct range)
+			{ .first = first, .last = first, .set = true };
+		break;
+	case 1:
+		sparsebit_clear(s, first);
+		assert(!sparsebit_is_set(s, first));
+		assert(sparsebit_is_clear(s, first));
+		assert(sparsebit_any_clear(s));
+		assert(!sparsebit_all_set(s));
+		if (!get_value(first))
+			return;
+		if (num_ranges == 1000)
+			exit(0);
+		ranges[num_ranges++] = (struct range)
+			{ .first = first, .last = first, .set = false };
+		break;
+	case 2:
+		assert(sparsebit_is_set(s, first) == get_value(first));
+		assert(sparsebit_is_clear(s, first) == !get_value(first));
+		break;
+	case 3:
+		if (sparsebit_any_set(s))
+			assert(get_value(sparsebit_first_set(s)));
+		if (sparsebit_any_clear(s))
+			assert(!get_value(sparsebit_first_clear(s)));
+		sparsebit_set_all(s);
+		assert(!sparsebit_any_clear(s));
+		assert(sparsebit_all_set(s));
+		num_ranges = 0;
+		ranges[num_ranges++] = (struct range)
+			{ .first = 0, .last = ~(sparsebit_idx_t)0, .set = true };
+		break;
+	case 4:
+		if (sparsebit_any_set(s))
+			assert(get_value(sparsebit_first_set(s)));
+		if (sparsebit_any_clear(s))
+			assert(!get_value(sparsebit_first_clear(s)));
+		sparsebit_clear_all(s);
+		assert(!sparsebit_any_set(s));
+		assert(sparsebit_all_clear(s));
+		num_ranges = 0;
+		break;
+	case 5:
+		next = sparsebit_next_set(s, first);
+		assert(next == 0 || next > first);
+		assert(next == 0 || get_value(next));
+		break;
+	case 6:
+		next = sparsebit_next_clear(s, first);
+		assert(next == 0 || next > first);
+		assert(next == 0 || !get_value(next));
+		break;
+	case 7:
+		next = sparsebit_next_clear(s, first);
+		if (sparsebit_is_set_num(s, first, num)) {
+			assert(next == 0 || next > last);
+			if (first)
+				next = sparsebit_next_set(s, first - 1);
+			else if (sparsebit_any_set(s))
+				next = sparsebit_first_set(s);
+			else
+				return;
+			assert(next == first);
+		} else {
+			assert(sparsebit_is_clear(s, first) || next <= last);
+		}
+		break;
+	case 8:
+		next = sparsebit_next_set(s, first);
+		if (sparsebit_is_clear_num(s, first, num)) {
+			assert(next == 0 || next > last);
+			if (first)
+				next = sparsebit_next_clear(s, first - 1);
+			else if (sparsebit_any_clear(s))
+				next = sparsebit_first_clear(s);
+			else
+				return;
+			assert(next == first);
+		} else {
+			assert(sparsebit_is_set(s, first) || next <= last);
+		}
+		break;
+	case 9:
+		sparsebit_set_num(s, first, num);
+		assert(sparsebit_is_set_num(s, first, num));
+		assert(!sparsebit_is_clear_num(s, first, num));
+		assert(sparsebit_any_set(s));
+		assert(!sparsebit_all_clear(s));
+		if (num_ranges == 1000)
+			exit(0);
+		ranges[num_ranges++] = (struct range)
+			{ .first = first, .last = last, .set = true };
+		break;
+	case 10:
+		sparsebit_clear_num(s, first, num);
+		assert(!sparsebit_is_set_num(s, first, num));
+		assert(sparsebit_is_clear_num(s, first, num));
+		assert(sparsebit_any_clear(s));
+		assert(!sparsebit_all_set(s));
+		if (num_ranges == 1000)
+			exit(0);
+		ranges[num_ranges++] = (struct range)
+			{ .first = first, .last = last, .set = false };
+		break;
+	case 11:
+		sparsebit_validate_internal(s);
+		break;
+	default:
+		break;
+	}
+}
+
+unsigned char get8(void)
+{
+	int ch;
+
+	ch = getchar();
+	if (ch == EOF)
+		exit(0);
+	return ch;
+}
+
+uint64_t get64(void)
+{
+	uint64_t x;
+
+	x = get8();
+	x = (x << 8) | get8();
+	x = (x << 8) | get8();
+	x = (x << 8) | get8();
+	x = (x << 8) | get8();
+	x = (x << 8) | get8();
+	x = (x << 8) | get8();
+	return (x << 8) | get8();
+}
+
+int main(void)
+{
+	s = sparsebit_alloc();
+	for (;;) {
+		uint8_t op = get8() & 0xf;
+		uint64_t first = get64();
+		uint64_t last = get64();
+
+		operate(op, first, last);
+	}
+}
+#endif
diff --git a/tools/testing/selftests/kvm/lib/string_override.c b/tools/testing/selftests/kvm/lib/string_override.c
new file mode 100644
index 000000000000..5d1c87277c49
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/string_override.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stddef.h>
+
+/*
+ * Override the "basic" built-in string helpers so that they can be used in
+ * guest code.  KVM selftests don't support dynamic loading in guest code and
+ * will jump into the weeds if the compiler decides to insert an out-of-line
+ * call via the PLT.
+ */
+int memcmp(const void *cs, const void *ct, size_t count)
+{
+	const unsigned char *su1, *su2;
+	int res = 0;
+
+	for (su1 = cs, su2 = ct; 0 < count; ++su1, ++su2, count--) {
+		if ((res = *su1 - *su2) != 0)
+			break;
+	}
+	return res;
+}
+
+void *memcpy(void *dest, const void *src, size_t count)
+{
+	char *tmp = dest;
+	const char *s = src;
+
+	while (count--)
+		*tmp++ = *s++;
+	return dest;
+}
+
+void *memset(void *s, int c, size_t count)
+{
+	char *xs = s;
+
+	while (count--)
+		*xs++ = c;
+	return s;
+}
+
+size_t strnlen(const char *s, size_t count)
+{
+	const char *sc;
+
+	for (sc = s; count-- && *sc != '\0'; ++sc)
+		/* nothing */;
+	return sc - s;
+}
diff --git a/tools/testing/selftests/kvm/lib/test_util.c b/tools/testing/selftests/kvm/lib/test_util.c
new file mode 100644
index 000000000000..8a1848586a85
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/test_util.c
@@ -0,0 +1,444 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * tools/testing/selftests/kvm/lib/test_util.c
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
+#include <stdio.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <time.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <linux/mman.h>
+#include "linux/kernel.h"
+
+#include "test_util.h"
+
+sigjmp_buf expect_sigbus_jmpbuf;
+
+void __attribute__((used)) expect_sigbus_handler(int signum)
+{
+	siglongjmp(expect_sigbus_jmpbuf, 1);
+}
+
+/*
+ * Random number generator that is usable from guest code. This is the
+ * Park-Miller LCG using standard constants.
+ */
+
+struct guest_random_state new_guest_random_state(uint32_t seed)
+{
+	struct guest_random_state s = {.seed = seed};
+	return s;
+}
+
+uint32_t guest_random_u32(struct guest_random_state *state)
+{
+	state->seed = (uint64_t)state->seed * 48271 % ((uint32_t)(1 << 31) - 1);
+	return state->seed;
+}
+
+/*
+ * Parses "[0-9]+[kmgt]?".
+ */
+size_t parse_size(const char *size)
+{
+	size_t base;
+	char *scale;
+	int shift = 0;
+
+	TEST_ASSERT(size && isdigit(size[0]), "Need at least one digit in '%s'", size);
+
+	base = strtoull(size, &scale, 0);
+
+	TEST_ASSERT(base != ULLONG_MAX, "Overflow parsing size!");
+
+	switch (tolower(*scale)) {
+	case 't':
+		shift = 40;
+		break;
+	case 'g':
+		shift = 30;
+		break;
+	case 'm':
+		shift = 20;
+		break;
+	case 'k':
+		shift = 10;
+		break;
+	case 'b':
+	case '\0':
+		shift = 0;
+		break;
+	default:
+		TEST_ASSERT(false, "Unknown size letter %c", *scale);
+	}
+
+	TEST_ASSERT((base << shift) >> shift == base, "Overflow scaling size!");
+
+	return base << shift;
+}
+
+int64_t timespec_to_ns(struct timespec ts)
+{
+	return (int64_t)ts.tv_nsec + 1000000000LL * (int64_t)ts.tv_sec;
+}
+
+struct timespec timespec_add_ns(struct timespec ts, int64_t ns)
+{
+	struct timespec res;
+
+	res.tv_nsec = ts.tv_nsec + ns;
+	res.tv_sec = ts.tv_sec + res.tv_nsec / 1000000000LL;
+	res.tv_nsec %= 1000000000LL;
+
+	return res;
+}
+
+struct timespec timespec_add(struct timespec ts1, struct timespec ts2)
+{
+	int64_t ns1 = timespec_to_ns(ts1);
+	int64_t ns2 = timespec_to_ns(ts2);
+	return timespec_add_ns((struct timespec){0}, ns1 + ns2);
+}
+
+struct timespec timespec_sub(struct timespec ts1, struct timespec ts2)
+{
+	int64_t ns1 = timespec_to_ns(ts1);
+	int64_t ns2 = timespec_to_ns(ts2);
+	return timespec_add_ns((struct timespec){0}, ns1 - ns2);
+}
+
+struct timespec timespec_elapsed(struct timespec start)
+{
+	struct timespec end;
+
+	clock_gettime(CLOCK_MONOTONIC, &end);
+	return timespec_sub(end, start);
+}
+
+struct timespec timespec_div(struct timespec ts, int divisor)
+{
+	int64_t ns = timespec_to_ns(ts) / divisor;
+
+	return timespec_add_ns((struct timespec){0}, ns);
+}
+
+void print_skip(const char *fmt, ...)
+{
+	va_list ap;
+
+	assert(fmt);
+	va_start(ap, fmt);
+	vprintf(fmt, ap);
+	va_end(ap);
+	puts(", skipping test");
+}
+
+static bool test_sysfs_path(const char *path)
+{
+	struct stat statbuf;
+	int ret;
+
+	ret = stat(path, &statbuf);
+	TEST_ASSERT(ret == 0 || (ret == -1 && errno == ENOENT),
+		    "Error in stat()ing '%s'", path);
+
+	return ret == 0;
+}
+
+bool thp_configured(void)
+{
+	return test_sysfs_path("/sys/kernel/mm/transparent_hugepage");
+}
+
+static size_t get_sysfs_val(const char *path)
+{
+	size_t size;
+	FILE *f;
+	int ret;
+
+	f = fopen(path, "r");
+	TEST_ASSERT(f, "Error opening '%s'", path);
+
+	ret = fscanf(f, "%ld", &size);
+	TEST_ASSERT(ret > 0, "Error reading '%s'", path);
+
+	/* Re-scan the input stream to verify the entire file was read. */
+	ret = fscanf(f, "%ld", &size);
+	TEST_ASSERT(ret < 1, "Error reading '%s'", path);
+
+	fclose(f);
+	return size;
+}
+
+size_t get_trans_hugepagesz(void)
+{
+	TEST_ASSERT(thp_configured(), "THP is not configured in host kernel");
+
+	return get_sysfs_val("/sys/kernel/mm/transparent_hugepage/hpage_pmd_size");
+}
+
+bool is_numa_balancing_enabled(void)
+{
+	if (!test_sysfs_path("/proc/sys/kernel/numa_balancing"))
+		return false;
+	return get_sysfs_val("/proc/sys/kernel/numa_balancing") == 1;
+}
+
+size_t get_def_hugetlb_pagesz(void)
+{
+	char buf[64];
+	const char *hugepagesize = "Hugepagesize:";
+	const char *hugepages_total = "HugePages_Total:";
+	FILE *f;
+
+	f = fopen("/proc/meminfo", "r");
+	TEST_ASSERT(f != NULL, "Error in opening /proc/meminfo");
+
+	while (fgets(buf, sizeof(buf), f) != NULL) {
+		if (strstr(buf, hugepages_total) == buf) {
+			unsigned long long total = strtoull(buf + strlen(hugepages_total), NULL, 10);
+			if (!total) {
+				fprintf(stderr, "HUGETLB is not enabled in /proc/sys/vm/nr_hugepages\n");
+				exit(KSFT_SKIP);
+			}
+		}
+		if (strstr(buf, hugepagesize) == buf) {
+			fclose(f);
+			return strtoull(buf + strlen(hugepagesize), NULL, 10) << 10;
+		}
+	}
+
+	if (feof(f)) {
+		fprintf(stderr, "HUGETLB is not configured in host kernel");
+		exit(KSFT_SKIP);
+	}
+
+	TEST_FAIL("Error in reading /proc/meminfo");
+}
+
+#define ANON_FLAGS	(MAP_PRIVATE | MAP_ANONYMOUS)
+#define ANON_HUGE_FLAGS	(ANON_FLAGS | MAP_HUGETLB)
+
+const struct vm_mem_backing_src_alias *vm_mem_backing_src_alias(uint32_t i)
+{
+	static const struct vm_mem_backing_src_alias aliases[] = {
+		[VM_MEM_SRC_ANONYMOUS] = {
+			.name = "anonymous",
+			.flag = ANON_FLAGS,
+		},
+		[VM_MEM_SRC_ANONYMOUS_THP] = {
+			.name = "anonymous_thp",
+			.flag = ANON_FLAGS,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB] = {
+			.name = "anonymous_hugetlb",
+			.flag = ANON_HUGE_FLAGS,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_16KB] = {
+			.name = "anonymous_hugetlb_16kb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_16KB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_64KB] = {
+			.name = "anonymous_hugetlb_64kb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_64KB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_512KB] = {
+			.name = "anonymous_hugetlb_512kb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_512KB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_1MB] = {
+			.name = "anonymous_hugetlb_1mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_1MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_2MB] = {
+			.name = "anonymous_hugetlb_2mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_2MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_8MB] = {
+			.name = "anonymous_hugetlb_8mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_8MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_16MB] = {
+			.name = "anonymous_hugetlb_16mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_16MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_32MB] = {
+			.name = "anonymous_hugetlb_32mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_32MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_256MB] = {
+			.name = "anonymous_hugetlb_256mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_256MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_512MB] = {
+			.name = "anonymous_hugetlb_512mb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_512MB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_1GB] = {
+			.name = "anonymous_hugetlb_1gb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_1GB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_2GB] = {
+			.name = "anonymous_hugetlb_2gb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_2GB,
+		},
+		[VM_MEM_SRC_ANONYMOUS_HUGETLB_16GB] = {
+			.name = "anonymous_hugetlb_16gb",
+			.flag = ANON_HUGE_FLAGS | MAP_HUGE_16GB,
+		},
+		[VM_MEM_SRC_SHMEM] = {
+			.name = "shmem",
+			.flag = MAP_SHARED,
+		},
+		[VM_MEM_SRC_SHARED_HUGETLB] = {
+			.name = "shared_hugetlb",
+			/*
+			 * No MAP_HUGETLB, we use MFD_HUGETLB instead. Since
+			 * we're using "file backed" memory, we need to specify
+			 * this when the FD is created, not when the area is
+			 * mapped.
+			 */
+			.flag = MAP_SHARED,
+		},
+	};
+	_Static_assert(ARRAY_SIZE(aliases) == NUM_SRC_TYPES,
+		       "Missing new backing src types?");
+
+	TEST_ASSERT(i < NUM_SRC_TYPES, "Backing src type ID %d too big", i);
+
+	return &aliases[i];
+}
+
+#define MAP_HUGE_PAGE_SIZE(x) (1ULL << ((x >> MAP_HUGE_SHIFT) & MAP_HUGE_MASK))
+
+size_t get_backing_src_pagesz(uint32_t i)
+{
+	uint32_t flag = vm_mem_backing_src_alias(i)->flag;
+
+	switch (i) {
+	case VM_MEM_SRC_ANONYMOUS:
+	case VM_MEM_SRC_SHMEM:
+		return getpagesize();
+	case VM_MEM_SRC_ANONYMOUS_THP:
+		return get_trans_hugepagesz();
+	case VM_MEM_SRC_ANONYMOUS_HUGETLB:
+	case VM_MEM_SRC_SHARED_HUGETLB:
+		return get_def_hugetlb_pagesz();
+	default:
+		return MAP_HUGE_PAGE_SIZE(flag);
+	}
+}
+
+bool is_backing_src_hugetlb(uint32_t i)
+{
+	return !!(vm_mem_backing_src_alias(i)->flag & MAP_HUGETLB);
+}
+
+static void print_available_backing_src_types(const char *prefix)
+{
+	int i;
+
+	printf("%sAvailable backing src types:\n", prefix);
+
+	for (i = 0; i < NUM_SRC_TYPES; i++)
+		printf("%s    %s\n", prefix, vm_mem_backing_src_alias(i)->name);
+}
+
+void backing_src_help(const char *flag)
+{
+	printf(" %s: specify the type of memory that should be used to\n"
+	       "     back the guest data region. (default: %s)\n",
+	       flag, vm_mem_backing_src_alias(DEFAULT_VM_MEM_SRC)->name);
+	print_available_backing_src_types("     ");
+}
+
+enum vm_mem_backing_src_type parse_backing_src_type(const char *type_name)
+{
+	int i;
+
+	for (i = 0; i < NUM_SRC_TYPES; i++)
+		if (!strcmp(type_name, vm_mem_backing_src_alias(i)->name))
+			return i;
+
+	print_available_backing_src_types("");
+	TEST_FAIL("Unknown backing src type: %s", type_name);
+	return -1;
+}
+
+long get_run_delay(void)
+{
+	char path[64];
+	long val[2];
+	FILE *fp;
+
+	sprintf(path, "/proc/%ld/schedstat", syscall(SYS_gettid));
+	fp = fopen(path, "r");
+	/* Return MIN_RUN_DELAY_NS upon failure just to be safe */
+	if (fscanf(fp, "%ld %ld ", &val[0], &val[1]) < 2)
+		val[1] = MIN_RUN_DELAY_NS;
+	fclose(fp);
+
+	return val[1];
+}
+
+int atoi_paranoid(const char *num_str)
+{
+	char *end_ptr;
+	long num;
+
+	errno = 0;
+	num = strtol(num_str, &end_ptr, 0);
+	TEST_ASSERT(!errno, "strtol(\"%s\") failed", num_str);
+	TEST_ASSERT(num_str != end_ptr,
+		    "strtol(\"%s\") didn't find a valid integer.", num_str);
+	TEST_ASSERT(*end_ptr == '\0',
+		    "strtol(\"%s\") failed to parse trailing characters \"%s\".",
+		    num_str, end_ptr);
+	TEST_ASSERT(num >= INT_MIN && num <= INT_MAX,
+		    "%ld not in range of [%d, %d]", num, INT_MIN, INT_MAX);
+
+	return num;
+}
+
+char *strdup_printf(const char *fmt, ...)
+{
+	va_list ap;
+	char *str;
+
+	va_start(ap, fmt);
+	TEST_ASSERT(vasprintf(&str, fmt, ap) >= 0, "vasprintf() failed");
+	va_end(ap);
+
+	return str;
+}
+
+#define CLOCKSOURCE_PATH "/sys/devices/system/clocksource/clocksource0/current_clocksource"
+
+char *sys_get_cur_clocksource(void)
+{
+	char *clk_name;
+	struct stat st;
+	FILE *fp;
+
+	fp = fopen(CLOCKSOURCE_PATH, "r");
+	TEST_ASSERT(fp, "failed to open clocksource file, errno: %d", errno);
+
+	TEST_ASSERT(!fstat(fileno(fp), &st), "failed to stat clocksource file, errno: %d",
+		    errno);
+
+	clk_name = malloc(st.st_size);
+	TEST_ASSERT(clk_name, "failed to allocate buffer to read file");
+
+	TEST_ASSERT(fgets(clk_name, st.st_size, fp), "failed to read clocksource file: %d",
+		    ferror(fp));
+
+	fclose(fp);
+
+	return clk_name;
+}
diff --git a/tools/testing/selftests/kvm/lib/ucall_common.c b/tools/testing/selftests/kvm/lib/ucall_common.c
new file mode 100644
index 000000000000..42151e571953
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/ucall_common.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "linux/types.h"
+#include "linux/bitmap.h"
+#include "linux/atomic.h"
+
+#include "kvm_util.h"
+#include "ucall_common.h"
+
+
+#define GUEST_UCALL_FAILED -1
+
+struct ucall_header {
+	DECLARE_BITMAP(in_use, KVM_MAX_VCPUS);
+	struct ucall ucalls[KVM_MAX_VCPUS];
+};
+
+int ucall_nr_pages_required(uint64_t page_size)
+{
+	return align_up(sizeof(struct ucall_header), page_size) / page_size;
+}
+
+/*
+ * ucall_pool holds per-VM values (global data is duplicated by each VM), it
+ * must not be accessed from host code.
+ */
+static struct ucall_header *ucall_pool;
+
+void ucall_init(struct kvm_vm *vm, vm_paddr_t mmio_gpa)
+{
+	struct ucall_header *hdr;
+	struct ucall *uc;
+	vm_vaddr_t vaddr;
+	int i;
+
+	vaddr = vm_vaddr_alloc_shared(vm, sizeof(*hdr), KVM_UTIL_MIN_VADDR,
+				      MEM_REGION_DATA);
+	hdr = (struct ucall_header *)addr_gva2hva(vm, vaddr);
+	memset(hdr, 0, sizeof(*hdr));
+
+	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+		uc = &hdr->ucalls[i];
+		uc->hva = uc;
+	}
+
+	write_guest_global(vm, ucall_pool, (struct ucall_header *)vaddr);
+
+	ucall_arch_init(vm, mmio_gpa);
+}
+
+static struct ucall *ucall_alloc(void)
+{
+	struct ucall *uc;
+	int i;
+
+	if (!ucall_pool)
+		goto ucall_failed;
+
+	for (i = 0; i < KVM_MAX_VCPUS; ++i) {
+		if (!test_and_set_bit(i, ucall_pool->in_use)) {
+			uc = &ucall_pool->ucalls[i];
+			memset(uc->args, 0, sizeof(uc->args));
+			return uc;
+		}
+	}
+
+ucall_failed:
+	/*
+	 * If the vCPU cannot grab a ucall structure, make a bare ucall with a
+	 * magic value to signal to get_ucall() that things went sideways.
+	 * GUEST_ASSERT() depends on ucall_alloc() and so cannot be used here.
+	 */
+	ucall_arch_do_ucall(GUEST_UCALL_FAILED);
+	return NULL;
+}
+
+static void ucall_free(struct ucall *uc)
+{
+	/* Beware, here be pointer arithmetic.  */
+	clear_bit(uc - ucall_pool->ucalls, ucall_pool->in_use);
+}
+
+void ucall_assert(uint64_t cmd, const char *exp, const char *file,
+		  unsigned int line, const char *fmt, ...)
+{
+	struct ucall *uc;
+	va_list va;
+
+	uc = ucall_alloc();
+	uc->cmd = cmd;
+
+	WRITE_ONCE(uc->args[GUEST_ERROR_STRING], (uint64_t)(exp));
+	WRITE_ONCE(uc->args[GUEST_FILE], (uint64_t)(file));
+	WRITE_ONCE(uc->args[GUEST_LINE], line);
+
+	va_start(va, fmt);
+	guest_vsnprintf(uc->buffer, UCALL_BUFFER_LEN, fmt, va);
+	va_end(va);
+
+	ucall_arch_do_ucall((vm_vaddr_t)uc->hva);
+
+	ucall_free(uc);
+}
+
+void ucall_fmt(uint64_t cmd, const char *fmt, ...)
+{
+	struct ucall *uc;
+	va_list va;
+
+	uc = ucall_alloc();
+	uc->cmd = cmd;
+
+	va_start(va, fmt);
+	guest_vsnprintf(uc->buffer, UCALL_BUFFER_LEN, fmt, va);
+	va_end(va);
+
+	ucall_arch_do_ucall((vm_vaddr_t)uc->hva);
+
+	ucall_free(uc);
+}
+
+void ucall(uint64_t cmd, int nargs, ...)
+{
+	struct ucall *uc;
+	va_list va;
+	int i;
+
+	uc = ucall_alloc();
+
+	WRITE_ONCE(uc->cmd, cmd);
+
+	nargs = min(nargs, UCALL_MAX_ARGS);
+
+	va_start(va, nargs);
+	for (i = 0; i < nargs; ++i)
+		WRITE_ONCE(uc->args[i], va_arg(va, uint64_t));
+	va_end(va);
+
+	ucall_arch_do_ucall((vm_vaddr_t)uc->hva);
+
+	ucall_free(uc);
+}
+
+uint64_t get_ucall(struct kvm_vcpu *vcpu, struct ucall *uc)
+{
+	struct ucall ucall;
+	void *addr;
+
+	if (!uc)
+		uc = &ucall;
+
+	addr = ucall_arch_get_ucall(vcpu);
+	if (addr) {
+		TEST_ASSERT(addr != (void *)GUEST_UCALL_FAILED,
+			    "Guest failed to allocate ucall struct");
+
+		memcpy(uc, addr, sizeof(*uc));
+		vcpu_run_complete_io(vcpu);
+	} else {
+		memset(uc, 0, sizeof(*uc));
+	}
+
+	return uc->cmd;
+}
diff --git a/tools/testing/selftests/kvm/lib/userfaultfd_util.c b/tools/testing/selftests/kvm/lib/userfaultfd_util.c
new file mode 100644
index 000000000000..5bde176cedd5
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/userfaultfd_util.c
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM userfaultfd util
+ * Adapted from demand_paging_test.c
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2019-2022 Google LLC
+ */
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <poll.h>
+#include <pthread.h>
+#include <linux/userfaultfd.h>
+#include <sys/epoll.h>
+#include <sys/syscall.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "memstress.h"
+#include "userfaultfd_util.h"
+
+#ifdef __NR_userfaultfd
+
+static void *uffd_handler_thread_fn(void *arg)
+{
+	struct uffd_reader_args *reader_args = (struct uffd_reader_args *)arg;
+	int uffd = reader_args->uffd;
+	int64_t pages = 0;
+	struct timespec start;
+	struct timespec ts_diff;
+	struct epoll_event evt;
+	int epollfd;
+
+	epollfd = epoll_create(1);
+	TEST_ASSERT(epollfd >= 0, "Failed to create epollfd.");
+
+	evt.events = EPOLLIN | EPOLLEXCLUSIVE;
+	evt.data.u32 = 0;
+	TEST_ASSERT(!epoll_ctl(epollfd, EPOLL_CTL_ADD, uffd, &evt),
+		    "Failed to add uffd to epollfd");
+
+	evt.events = EPOLLIN;
+	evt.data.u32 = 1;
+	TEST_ASSERT(!epoll_ctl(epollfd, EPOLL_CTL_ADD, reader_args->pipe, &evt),
+		    "Failed to add pipe to epollfd");
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+	while (1) {
+		struct uffd_msg msg;
+		int r;
+
+		r = epoll_wait(epollfd, &evt, 1, -1);
+		TEST_ASSERT(r == 1,
+			    "Unexpected number of events (%d) from epoll, errno = %d",
+			    r, errno);
+
+		if (evt.data.u32 == 1) {
+			char tmp_chr;
+
+			TEST_ASSERT(!(evt.events & (EPOLLERR | EPOLLHUP)),
+				    "Reader thread received EPOLLERR or EPOLLHUP on pipe.");
+			r = read(reader_args->pipe, &tmp_chr, 1);
+			TEST_ASSERT(r == 1,
+				    "Error reading pipefd in uffd reader thread");
+			break;
+		}
+
+		TEST_ASSERT(!(evt.events & (EPOLLERR | EPOLLHUP)),
+			    "Reader thread received EPOLLERR or EPOLLHUP on uffd.");
+
+		r = read(uffd, &msg, sizeof(msg));
+		if (r == -1) {
+			TEST_ASSERT(errno == EAGAIN,
+				    "Error reading from UFFD: errno = %d", errno);
+			continue;
+		}
+
+		TEST_ASSERT(r == sizeof(msg),
+			    "Read on uffd returned unexpected number of bytes (%d)", r);
+
+		if (!(msg.event & UFFD_EVENT_PAGEFAULT))
+			continue;
+
+		if (reader_args->delay)
+			usleep(reader_args->delay);
+		r = reader_args->handler(reader_args->uffd_mode, uffd, &msg);
+		TEST_ASSERT(r >= 0,
+			    "Reader thread handler fn returned negative value %d", r);
+		pages++;
+	}
+
+	ts_diff = timespec_elapsed(start);
+	PER_VCPU_DEBUG("userfaulted %ld pages over %ld.%.9lds. (%f/sec)\n",
+		       pages, ts_diff.tv_sec, ts_diff.tv_nsec,
+		       pages / ((double)ts_diff.tv_sec + (double)ts_diff.tv_nsec / NSEC_PER_SEC));
+
+	return NULL;
+}
+
+struct uffd_desc *uffd_setup_demand_paging(int uffd_mode, useconds_t delay,
+					   void *hva, uint64_t len,
+					   uint64_t num_readers,
+					   uffd_handler_t handler)
+{
+	struct uffd_desc *uffd_desc;
+	bool is_minor = (uffd_mode == UFFDIO_REGISTER_MODE_MINOR);
+	int uffd;
+	struct uffdio_api uffdio_api;
+	struct uffdio_register uffdio_register;
+	uint64_t expected_ioctls = ((uint64_t) 1) << _UFFDIO_COPY;
+	int ret, i;
+
+	PER_PAGE_DEBUG("Userfaultfd %s mode, faults resolved with %s\n",
+		       is_minor ? "MINOR" : "MISSING",
+		       is_minor ? "UFFDIO_CONTINUE" : "UFFDIO_COPY");
+
+	uffd_desc = malloc(sizeof(struct uffd_desc));
+	TEST_ASSERT(uffd_desc, "Failed to malloc uffd descriptor");
+
+	uffd_desc->pipefds = calloc(sizeof(int), num_readers);
+	TEST_ASSERT(uffd_desc->pipefds, "Failed to alloc pipes");
+
+	uffd_desc->readers = calloc(sizeof(pthread_t), num_readers);
+	TEST_ASSERT(uffd_desc->readers, "Failed to alloc reader threads");
+
+	uffd_desc->reader_args = calloc(sizeof(struct uffd_reader_args), num_readers);
+	TEST_ASSERT(uffd_desc->reader_args, "Failed to alloc reader_args");
+
+	uffd_desc->num_readers = num_readers;
+
+	/* In order to get minor faults, prefault via the alias. */
+	if (is_minor)
+		expected_ioctls = ((uint64_t) 1) << _UFFDIO_CONTINUE;
+
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	TEST_ASSERT(uffd >= 0, "uffd creation failed, errno: %d", errno);
+
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	TEST_ASSERT(ioctl(uffd, UFFDIO_API, &uffdio_api) != -1,
+		    "ioctl UFFDIO_API failed: %" PRIu64,
+		    (uint64_t)uffdio_api.api);
+
+	uffdio_register.range.start = (uint64_t)hva;
+	uffdio_register.range.len = len;
+	uffdio_register.mode = uffd_mode;
+	TEST_ASSERT(ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) != -1,
+		    "ioctl UFFDIO_REGISTER failed");
+	TEST_ASSERT((uffdio_register.ioctls & expected_ioctls) ==
+		    expected_ioctls, "missing userfaultfd ioctls");
+
+	uffd_desc->uffd = uffd;
+	for (i = 0; i < uffd_desc->num_readers; ++i) {
+		int pipes[2];
+
+		ret = pipe2((int *) &pipes, O_CLOEXEC | O_NONBLOCK);
+		TEST_ASSERT(!ret, "Failed to set up pipefd %i for uffd_desc %p",
+			    i, uffd_desc);
+
+		uffd_desc->pipefds[i] = pipes[1];
+
+		uffd_desc->reader_args[i].uffd_mode = uffd_mode;
+		uffd_desc->reader_args[i].uffd = uffd;
+		uffd_desc->reader_args[i].delay = delay;
+		uffd_desc->reader_args[i].handler = handler;
+		uffd_desc->reader_args[i].pipe = pipes[0];
+
+		pthread_create(&uffd_desc->readers[i], NULL, uffd_handler_thread_fn,
+			       &uffd_desc->reader_args[i]);
+
+		PER_VCPU_DEBUG("Created uffd thread %i for HVA range [%p, %p)\n",
+			       i, hva, hva + len);
+	}
+
+	return uffd_desc;
+}
+
+void uffd_stop_demand_paging(struct uffd_desc *uffd)
+{
+	char c = 0;
+	int i;
+
+	for (i = 0; i < uffd->num_readers; ++i)
+		TEST_ASSERT(write(uffd->pipefds[i], &c, 1) == 1,
+			    "Unable to write to pipefd %i for uffd_desc %p", i, uffd);
+
+	for (i = 0; i < uffd->num_readers; ++i)
+		TEST_ASSERT(!pthread_join(uffd->readers[i], NULL),
+			    "Pthread_join failed on reader %i for uffd_desc %p", i, uffd);
+
+	close(uffd->uffd);
+
+	for (i = 0; i < uffd->num_readers; ++i) {
+		close(uffd->pipefds[i]);
+		close(uffd->reader_args[i].pipe);
+	}
+
+	free(uffd->pipefds);
+	free(uffd->readers);
+	free(uffd->reader_args);
+	free(uffd);
+}
+
+#endif /* __NR_userfaultfd */
diff --git a/tools/testing/selftests/kvm/lib/x86/apic.c b/tools/testing/selftests/kvm/lib/x86/apic.c
new file mode 100644
index 000000000000..89153a333e83
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/apic.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Google LLC.
+ */
+
+#include "apic.h"
+
+void apic_disable(void)
+{
+	wrmsr(MSR_IA32_APICBASE,
+	      rdmsr(MSR_IA32_APICBASE) &
+		~(MSR_IA32_APICBASE_ENABLE | MSR_IA32_APICBASE_EXTD));
+}
+
+void xapic_enable(void)
+{
+	uint64_t val = rdmsr(MSR_IA32_APICBASE);
+
+	/* Per SDM: to enable xAPIC when in x2APIC must first disable APIC */
+	if (val & MSR_IA32_APICBASE_EXTD) {
+		apic_disable();
+		wrmsr(MSR_IA32_APICBASE,
+		      rdmsr(MSR_IA32_APICBASE) | MSR_IA32_APICBASE_ENABLE);
+	} else if (!(val & MSR_IA32_APICBASE_ENABLE)) {
+		wrmsr(MSR_IA32_APICBASE, val | MSR_IA32_APICBASE_ENABLE);
+	}
+
+	/*
+	 * Per SDM: reset value of spurious interrupt vector register has the
+	 * APIC software enabled bit=0. It must be enabled in addition to the
+	 * enable bit in the MSR.
+	 */
+	val = xapic_read_reg(APIC_SPIV) | APIC_SPIV_APIC_ENABLED;
+	xapic_write_reg(APIC_SPIV, val);
+}
+
+void x2apic_enable(void)
+{
+	wrmsr(MSR_IA32_APICBASE, rdmsr(MSR_IA32_APICBASE) |
+	      MSR_IA32_APICBASE_ENABLE | MSR_IA32_APICBASE_EXTD);
+	x2apic_write_reg(APIC_SPIV,
+			 x2apic_read_reg(APIC_SPIV) | APIC_SPIV_APIC_ENABLED);
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/handlers.S b/tools/testing/selftests/kvm/lib/x86/handlers.S
new file mode 100644
index 000000000000..7629819734af
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/handlers.S
@@ -0,0 +1,81 @@
+handle_exception:
+	push %r15
+	push %r14
+	push %r13
+	push %r12
+	push %r11
+	push %r10
+	push %r9
+	push %r8
+
+	push %rdi
+	push %rsi
+	push %rbp
+	push %rbx
+	push %rdx
+	push %rcx
+	push %rax
+	mov %rsp, %rdi
+
+	call route_exception
+
+	pop %rax
+	pop %rcx
+	pop %rdx
+	pop %rbx
+	pop %rbp
+	pop %rsi
+	pop %rdi
+	pop %r8
+	pop %r9
+	pop %r10
+	pop %r11
+	pop %r12
+	pop %r13
+	pop %r14
+	pop %r15
+
+	/* Discard vector and error code. */
+	add $16, %rsp
+	iretq
+
+/*
+ * Build the handle_exception wrappers which push the vector/error code on the
+ * stack and an array of pointers to those wrappers.
+ */
+.pushsection .rodata
+.globl idt_handlers
+idt_handlers:
+.popsection
+
+.macro HANDLERS has_error from to
+	vector = \from
+	.rept \to - \from + 1
+	.align 8
+
+	/* Fetch current address and append it to idt_handlers. */
+666 :
+.pushsection .rodata
+	.quad 666b
+.popsection
+
+	.if ! \has_error
+	pushq $0
+	.endif
+	pushq $vector
+	jmp handle_exception
+	vector = vector + 1
+	.endr
+.endm
+
+.global idt_handler_code
+idt_handler_code:
+	HANDLERS has_error=0 from=0  to=7
+	HANDLERS has_error=1 from=8  to=8
+	HANDLERS has_error=0 from=9  to=9
+	HANDLERS has_error=1 from=10 to=14
+	HANDLERS has_error=0 from=15 to=16
+	HANDLERS has_error=1 from=17 to=17
+	HANDLERS has_error=0 from=18 to=255
+
+.section        .note.GNU-stack, "", %progbits
diff --git a/tools/testing/selftests/kvm/lib/x86/hyperv.c b/tools/testing/selftests/kvm/lib/x86/hyperv.c
new file mode 100644
index 000000000000..15bc8cd583aa
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/hyperv.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Hyper-V specific functions.
+ *
+ * Copyright (C) 2021, Red Hat Inc.
+ */
+#include <stdint.h>
+#include "processor.h"
+#include "hyperv.h"
+
+const struct kvm_cpuid2 *kvm_get_supported_hv_cpuid(void)
+{
+	static struct kvm_cpuid2 *cpuid;
+	int kvm_fd;
+
+	if (cpuid)
+		return cpuid;
+
+	cpuid = allocate_kvm_cpuid2(MAX_NR_CPUID_ENTRIES);
+	kvm_fd = open_kvm_dev_path_or_exit();
+
+	kvm_ioctl(kvm_fd, KVM_GET_SUPPORTED_HV_CPUID, cpuid);
+
+	close(kvm_fd);
+	return cpuid;
+}
+
+void vcpu_set_hv_cpuid(struct kvm_vcpu *vcpu)
+{
+	static struct kvm_cpuid2 *cpuid_full;
+	const struct kvm_cpuid2 *cpuid_sys, *cpuid_hv;
+	int i, nent = 0;
+
+	if (!cpuid_full) {
+		cpuid_sys = kvm_get_supported_cpuid();
+		cpuid_hv = kvm_get_supported_hv_cpuid();
+
+		cpuid_full = allocate_kvm_cpuid2(cpuid_sys->nent + cpuid_hv->nent);
+		if (!cpuid_full) {
+			perror("malloc");
+			abort();
+		}
+
+		/* Need to skip KVM CPUID leaves 0x400000xx */
+		for (i = 0; i < cpuid_sys->nent; i++) {
+			if (cpuid_sys->entries[i].function >= 0x40000000 &&
+			    cpuid_sys->entries[i].function < 0x40000100)
+				continue;
+			cpuid_full->entries[nent] = cpuid_sys->entries[i];
+			nent++;
+		}
+
+		memcpy(&cpuid_full->entries[nent], cpuid_hv->entries,
+		       cpuid_hv->nent * sizeof(struct kvm_cpuid_entry2));
+		cpuid_full->nent = nent + cpuid_hv->nent;
+	}
+
+	vcpu_init_cpuid(vcpu, cpuid_full);
+}
+
+const struct kvm_cpuid2 *vcpu_get_supported_hv_cpuid(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid2 *cpuid = allocate_kvm_cpuid2(MAX_NR_CPUID_ENTRIES);
+
+	vcpu_ioctl(vcpu, KVM_GET_SUPPORTED_HV_CPUID, cpuid);
+
+	return cpuid;
+}
+
+bool kvm_hv_cpu_has(struct kvm_x86_cpu_feature feature)
+{
+	if (!kvm_has_cap(KVM_CAP_SYS_HYPERV_CPUID))
+		return false;
+
+	return kvm_cpuid_has(kvm_get_supported_hv_cpuid(), feature);
+}
+
+struct hyperv_test_pages *vcpu_alloc_hyperv_test_pages(struct kvm_vm *vm,
+						       vm_vaddr_t *p_hv_pages_gva)
+{
+	vm_vaddr_t hv_pages_gva = vm_vaddr_alloc_page(vm);
+	struct hyperv_test_pages *hv = addr_gva2hva(vm, hv_pages_gva);
+
+	/* Setup of a region of guest memory for the VP Assist page. */
+	hv->vp_assist = (void *)vm_vaddr_alloc_page(vm);
+	hv->vp_assist_hva = addr_gva2hva(vm, (uintptr_t)hv->vp_assist);
+	hv->vp_assist_gpa = addr_gva2gpa(vm, (uintptr_t)hv->vp_assist);
+
+	/* Setup of a region of guest memory for the partition assist page. */
+	hv->partition_assist = (void *)vm_vaddr_alloc_page(vm);
+	hv->partition_assist_hva = addr_gva2hva(vm, (uintptr_t)hv->partition_assist);
+	hv->partition_assist_gpa = addr_gva2gpa(vm, (uintptr_t)hv->partition_assist);
+
+	/* Setup of a region of guest memory for the enlightened VMCS. */
+	hv->enlightened_vmcs = (void *)vm_vaddr_alloc_page(vm);
+	hv->enlightened_vmcs_hva = addr_gva2hva(vm, (uintptr_t)hv->enlightened_vmcs);
+	hv->enlightened_vmcs_gpa = addr_gva2gpa(vm, (uintptr_t)hv->enlightened_vmcs);
+
+	*p_hv_pages_gva = hv_pages_gva;
+	return hv;
+}
+
+int enable_vp_assist(uint64_t vp_assist_pa, void *vp_assist)
+{
+	uint64_t val = (vp_assist_pa & HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK) |
+		HV_X64_MSR_VP_ASSIST_PAGE_ENABLE;
+
+	wrmsr(HV_X64_MSR_VP_ASSIST_PAGE, val);
+
+	current_vp_assist = vp_assist;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/memstress.c b/tools/testing/selftests/kvm/lib/x86/memstress.c
new file mode 100644
index 000000000000..0b1f288ad556
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/memstress.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * x86-specific extensions to memstress.c.
+ *
+ * Copyright (C) 2022, Google, Inc.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "memstress.h"
+#include "processor.h"
+#include "vmx.h"
+
+void memstress_l2_guest_code(uint64_t vcpu_id)
+{
+	memstress_guest_code(vcpu_id);
+	vmcall();
+}
+
+extern char memstress_l2_guest_entry[];
+__asm__(
+"memstress_l2_guest_entry:"
+"	mov (%rsp), %rdi;"
+"	call memstress_l2_guest_code;"
+"	ud2;"
+);
+
+static void memstress_l1_guest_code(struct vmx_pages *vmx, uint64_t vcpu_id)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	unsigned long *rsp;
+
+	GUEST_ASSERT(vmx->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx));
+	GUEST_ASSERT(load_vmcs(vmx));
+	GUEST_ASSERT(ept_1g_pages_supported());
+
+	rsp = &l2_guest_stack[L2_GUEST_STACK_SIZE - 1];
+	*rsp = vcpu_id;
+	prepare_vmcs(vmx, memstress_l2_guest_entry, rsp);
+
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	GUEST_DONE();
+}
+
+uint64_t memstress_nested_pages(int nr_vcpus)
+{
+	/*
+	 * 513 page tables is enough to identity-map 256 TiB of L2 with 1G
+	 * pages and 4-level paging, plus a few pages per-vCPU for data
+	 * structures such as the VMCS.
+	 */
+	return 513 + 10 * nr_vcpus;
+}
+
+void memstress_setup_ept(struct vmx_pages *vmx, struct kvm_vm *vm)
+{
+	uint64_t start, end;
+
+	prepare_eptp(vmx, vm);
+
+	/*
+	 * Identity map the first 4G and the test region with 1G pages so that
+	 * KVM can shadow the EPT12 with the maximum huge page size supported
+	 * by the backing source.
+	 */
+	nested_identity_map_1g(vmx, vm, 0, 0x100000000ULL);
+
+	start = align_down(memstress_args.gpa, PG_SIZE_1G);
+	end = align_up(memstress_args.gpa + memstress_args.size, PG_SIZE_1G);
+	nested_identity_map_1g(vmx, vm, start, end - start);
+}
+
+void memstress_setup_nested(struct kvm_vm *vm, int nr_vcpus, struct kvm_vcpu *vcpus[])
+{
+	struct vmx_pages *vmx, *vmx0 = NULL;
+	struct kvm_regs regs;
+	vm_vaddr_t vmx_gva;
+	int vcpu_id;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+	TEST_REQUIRE(kvm_cpu_has_ept());
+
+	for (vcpu_id = 0; vcpu_id < nr_vcpus; vcpu_id++) {
+		vmx = vcpu_alloc_vmx(vm, &vmx_gva);
+
+		if (vcpu_id == 0) {
+			memstress_setup_ept(vmx, vm);
+			vmx0 = vmx;
+		} else {
+			/* Share the same EPT table across all vCPUs. */
+			vmx->eptp = vmx0->eptp;
+			vmx->eptp_hva = vmx0->eptp_hva;
+			vmx->eptp_gpa = vmx0->eptp_gpa;
+		}
+
+		/*
+		 * Override the vCPU to run memstress_l1_guest_code() which will
+		 * bounce it into L2 before calling memstress_guest_code().
+		 */
+		vcpu_regs_get(vcpus[vcpu_id], &regs);
+		regs.rip = (unsigned long) memstress_l1_guest_code;
+		vcpu_regs_set(vcpus[vcpu_id], &regs);
+		vcpu_args_set(vcpus[vcpu_id], 2, vmx_gva, vcpu_id);
+	}
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/pmu.c b/tools/testing/selftests/kvm/lib/x86/pmu.c
new file mode 100644
index 000000000000..34cb57d1d671
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/pmu.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023, Tencent, Inc.
+ */
+
+#include <stdint.h>
+
+#include <linux/kernel.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "pmu.h"
+
+const uint64_t intel_pmu_arch_events[] = {
+	INTEL_ARCH_CPU_CYCLES,
+	INTEL_ARCH_INSTRUCTIONS_RETIRED,
+	INTEL_ARCH_REFERENCE_CYCLES,
+	INTEL_ARCH_LLC_REFERENCES,
+	INTEL_ARCH_LLC_MISSES,
+	INTEL_ARCH_BRANCHES_RETIRED,
+	INTEL_ARCH_BRANCHES_MISPREDICTED,
+	INTEL_ARCH_TOPDOWN_SLOTS,
+	INTEL_ARCH_TOPDOWN_BE_BOUND,
+	INTEL_ARCH_TOPDOWN_BAD_SPEC,
+	INTEL_ARCH_TOPDOWN_FE_BOUND,
+	INTEL_ARCH_TOPDOWN_RETIRING,
+	INTEL_ARCH_LBR_INSERTS,
+};
+kvm_static_assert(ARRAY_SIZE(intel_pmu_arch_events) == NR_INTEL_ARCH_EVENTS);
+
+const uint64_t amd_pmu_zen_events[] = {
+	AMD_ZEN_CORE_CYCLES,
+	AMD_ZEN_INSTRUCTIONS_RETIRED,
+	AMD_ZEN_BRANCHES_RETIRED,
+	AMD_ZEN_BRANCHES_MISPREDICTED,
+};
+kvm_static_assert(ARRAY_SIZE(amd_pmu_zen_events) == NR_AMD_ZEN_EVENTS);
+
+/*
+ * For Intel Atom CPUs, the PMU events "Instruction Retired" or
+ * "Branch Instruction Retired" may be overcounted for some certain
+ * instructions, like FAR CALL/JMP, RETF, IRET, VMENTRY/VMEXIT/VMPTRLD
+ * and complex SGX/SMX/CSTATE instructions/flows.
+ *
+ * The detailed information can be found in the errata (section SRF7):
+ * https://edc.intel.com/content/www/us/en/design/products-and-solutions/processors-and-chipsets/sierra-forest/xeon-6700-series-processor-with-e-cores-specification-update/errata-details/
+ *
+ * For the Atom platforms before Sierra Forest (including Sierra Forest),
+ * Both 2 events "Instruction Retired" and "Branch Instruction Retired" would
+ * be overcounted on these certain instructions, but for Clearwater Forest
+ * only "Instruction Retired" event is overcounted on these instructions.
+ */
+static uint64_t get_pmu_errata(void)
+{
+	if (!this_cpu_is_intel())
+		return 0;
+
+	if (this_cpu_family() != 0x6)
+		return 0;
+
+	switch (this_cpu_model()) {
+	case 0xDD: /* Clearwater Forest */
+		return BIT_ULL(INSTRUCTIONS_RETIRED_OVERCOUNT);
+	case 0xAF: /* Sierra Forest */
+	case 0x4D: /* Avaton, Rangely */
+	case 0x5F: /* Denverton */
+	case 0x86: /* Jacobsville */
+		return BIT_ULL(INSTRUCTIONS_RETIRED_OVERCOUNT) |
+		       BIT_ULL(BRANCHES_RETIRED_OVERCOUNT);
+	default:
+		return 0;
+	}
+}
+
+uint64_t pmu_errata_mask;
+
+void kvm_init_pmu_errata(void)
+{
+	pmu_errata_mask = get_pmu_errata();
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/processor.c b/tools/testing/selftests/kvm/lib/x86/processor.c
new file mode 100644
index 000000000000..36104d27f3d9
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/processor.c
@@ -0,0 +1,1325 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#include "linux/bitmap.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "pmu.h"
+#include "processor.h"
+#include "sev.h"
+
+#ifndef NUM_INTERRUPTS
+#define NUM_INTERRUPTS 256
+#endif
+
+#define KERNEL_CS	0x8
+#define KERNEL_DS	0x10
+#define KERNEL_TSS	0x18
+
+vm_vaddr_t exception_handlers;
+bool host_cpu_is_amd;
+bool host_cpu_is_intel;
+bool is_forced_emulation_enabled;
+uint64_t guest_tsc_khz;
+
+const char *ex_str(int vector)
+{
+	switch (vector) {
+#define VEC_STR(v) case v##_VECTOR: return "#" #v
+	case DE_VECTOR: return "no exception";
+	case KVM_MAGIC_DE_VECTOR: return "#DE";
+	VEC_STR(DB);
+	VEC_STR(NMI);
+	VEC_STR(BP);
+	VEC_STR(OF);
+	VEC_STR(BR);
+	VEC_STR(UD);
+	VEC_STR(NM);
+	VEC_STR(DF);
+	VEC_STR(TS);
+	VEC_STR(NP);
+	VEC_STR(SS);
+	VEC_STR(GP);
+	VEC_STR(PF);
+	VEC_STR(MF);
+	VEC_STR(AC);
+	VEC_STR(MC);
+	VEC_STR(XM);
+	VEC_STR(VE);
+	VEC_STR(CP);
+	VEC_STR(HV);
+	VEC_STR(VC);
+	VEC_STR(SX);
+	default: return "#??";
+#undef VEC_STR
+	}
+}
+
+static void regs_dump(FILE *stream, struct kvm_regs *regs, uint8_t indent)
+{
+	fprintf(stream, "%*srax: 0x%.16llx rbx: 0x%.16llx "
+		"rcx: 0x%.16llx rdx: 0x%.16llx\n",
+		indent, "",
+		regs->rax, regs->rbx, regs->rcx, regs->rdx);
+	fprintf(stream, "%*srsi: 0x%.16llx rdi: 0x%.16llx "
+		"rsp: 0x%.16llx rbp: 0x%.16llx\n",
+		indent, "",
+		regs->rsi, regs->rdi, regs->rsp, regs->rbp);
+	fprintf(stream, "%*sr8:  0x%.16llx r9:  0x%.16llx "
+		"r10: 0x%.16llx r11: 0x%.16llx\n",
+		indent, "",
+		regs->r8, regs->r9, regs->r10, regs->r11);
+	fprintf(stream, "%*sr12: 0x%.16llx r13: 0x%.16llx "
+		"r14: 0x%.16llx r15: 0x%.16llx\n",
+		indent, "",
+		regs->r12, regs->r13, regs->r14, regs->r15);
+	fprintf(stream, "%*srip: 0x%.16llx rfl: 0x%.16llx\n",
+		indent, "",
+		regs->rip, regs->rflags);
+}
+
+static void segment_dump(FILE *stream, struct kvm_segment *segment,
+			 uint8_t indent)
+{
+	fprintf(stream, "%*sbase: 0x%.16llx limit: 0x%.8x "
+		"selector: 0x%.4x type: 0x%.2x\n",
+		indent, "", segment->base, segment->limit,
+		segment->selector, segment->type);
+	fprintf(stream, "%*spresent: 0x%.2x dpl: 0x%.2x "
+		"db: 0x%.2x s: 0x%.2x l: 0x%.2x\n",
+		indent, "", segment->present, segment->dpl,
+		segment->db, segment->s, segment->l);
+	fprintf(stream, "%*sg: 0x%.2x avl: 0x%.2x "
+		"unusable: 0x%.2x padding: 0x%.2x\n",
+		indent, "", segment->g, segment->avl,
+		segment->unusable, segment->padding);
+}
+
+static void dtable_dump(FILE *stream, struct kvm_dtable *dtable,
+			uint8_t indent)
+{
+	fprintf(stream, "%*sbase: 0x%.16llx limit: 0x%.4x "
+		"padding: 0x%.4x 0x%.4x 0x%.4x\n",
+		indent, "", dtable->base, dtable->limit,
+		dtable->padding[0], dtable->padding[1], dtable->padding[2]);
+}
+
+static void sregs_dump(FILE *stream, struct kvm_sregs *sregs, uint8_t indent)
+{
+	unsigned int i;
+
+	fprintf(stream, "%*scs:\n", indent, "");
+	segment_dump(stream, &sregs->cs, indent + 2);
+	fprintf(stream, "%*sds:\n", indent, "");
+	segment_dump(stream, &sregs->ds, indent + 2);
+	fprintf(stream, "%*ses:\n", indent, "");
+	segment_dump(stream, &sregs->es, indent + 2);
+	fprintf(stream, "%*sfs:\n", indent, "");
+	segment_dump(stream, &sregs->fs, indent + 2);
+	fprintf(stream, "%*sgs:\n", indent, "");
+	segment_dump(stream, &sregs->gs, indent + 2);
+	fprintf(stream, "%*sss:\n", indent, "");
+	segment_dump(stream, &sregs->ss, indent + 2);
+	fprintf(stream, "%*str:\n", indent, "");
+	segment_dump(stream, &sregs->tr, indent + 2);
+	fprintf(stream, "%*sldt:\n", indent, "");
+	segment_dump(stream, &sregs->ldt, indent + 2);
+
+	fprintf(stream, "%*sgdt:\n", indent, "");
+	dtable_dump(stream, &sregs->gdt, indent + 2);
+	fprintf(stream, "%*sidt:\n", indent, "");
+	dtable_dump(stream, &sregs->idt, indent + 2);
+
+	fprintf(stream, "%*scr0: 0x%.16llx cr2: 0x%.16llx "
+		"cr3: 0x%.16llx cr4: 0x%.16llx\n",
+		indent, "",
+		sregs->cr0, sregs->cr2, sregs->cr3, sregs->cr4);
+	fprintf(stream, "%*scr8: 0x%.16llx efer: 0x%.16llx "
+		"apic_base: 0x%.16llx\n",
+		indent, "",
+		sregs->cr8, sregs->efer, sregs->apic_base);
+
+	fprintf(stream, "%*sinterrupt_bitmap:\n", indent, "");
+	for (i = 0; i < (KVM_NR_INTERRUPTS + 63) / 64; i++) {
+		fprintf(stream, "%*s%.16llx\n", indent + 2, "",
+			sregs->interrupt_bitmap[i]);
+	}
+}
+
+bool kvm_is_tdp_enabled(void)
+{
+	if (host_cpu_is_intel)
+		return get_kvm_intel_param_bool("ept");
+	else
+		return get_kvm_amd_param_bool("npt");
+}
+
+void virt_arch_pgd_alloc(struct kvm_vm *vm)
+{
+	TEST_ASSERT(vm->mode == VM_MODE_PXXVYY_4K,
+		    "Unknown or unsupported guest mode: 0x%x", vm->mode);
+
+	/* If needed, create the top-level page table. */
+	if (!vm->pgd_created) {
+		vm->pgd = vm_alloc_page_table(vm);
+		vm->pgd_created = true;
+	}
+}
+
+static void *virt_get_pte(struct kvm_vm *vm, uint64_t *parent_pte,
+			  uint64_t vaddr, int level)
+{
+	uint64_t pt_gpa = PTE_GET_PA(*parent_pte);
+	uint64_t *page_table = addr_gpa2hva(vm, pt_gpa);
+	int index = (vaddr >> PG_LEVEL_SHIFT(level)) & 0x1ffu;
+
+	TEST_ASSERT((*parent_pte & PTE_PRESENT_MASK) || parent_pte == &vm->pgd,
+		    "Parent PTE (level %d) not PRESENT for gva: 0x%08lx",
+		    level + 1, vaddr);
+
+	return &page_table[index];
+}
+
+static uint64_t *virt_create_upper_pte(struct kvm_vm *vm,
+				       uint64_t *parent_pte,
+				       uint64_t vaddr,
+				       uint64_t paddr,
+				       int current_level,
+				       int target_level)
+{
+	uint64_t *pte = virt_get_pte(vm, parent_pte, vaddr, current_level);
+
+	paddr = vm_untag_gpa(vm, paddr);
+
+	if (!(*pte & PTE_PRESENT_MASK)) {
+		*pte = PTE_PRESENT_MASK | PTE_WRITABLE_MASK;
+		if (current_level == target_level)
+			*pte |= PTE_LARGE_MASK | (paddr & PHYSICAL_PAGE_MASK);
+		else
+			*pte |= vm_alloc_page_table(vm) & PHYSICAL_PAGE_MASK;
+	} else {
+		/*
+		 * Entry already present.  Assert that the caller doesn't want
+		 * a hugepage at this level, and that there isn't a hugepage at
+		 * this level.
+		 */
+		TEST_ASSERT(current_level != target_level,
+			    "Cannot create hugepage at level: %u, vaddr: 0x%lx",
+			    current_level, vaddr);
+		TEST_ASSERT(!(*pte & PTE_LARGE_MASK),
+			    "Cannot create page table at level: %u, vaddr: 0x%lx",
+			    current_level, vaddr);
+	}
+	return pte;
+}
+
+void __virt_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr, int level)
+{
+	const uint64_t pg_size = PG_LEVEL_SIZE(level);
+	uint64_t *pte = &vm->pgd;
+	int current_level;
+
+	TEST_ASSERT(vm->mode == VM_MODE_PXXVYY_4K,
+		    "Unknown or unsupported guest mode: 0x%x", vm->mode);
+
+	TEST_ASSERT((vaddr % pg_size) == 0,
+		    "Virtual address not aligned,\n"
+		    "vaddr: 0x%lx page size: 0x%lx", vaddr, pg_size);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid, (vaddr >> vm->page_shift)),
+		    "Invalid virtual address, vaddr: 0x%lx", vaddr);
+	TEST_ASSERT((paddr % pg_size) == 0,
+		    "Physical address not aligned,\n"
+		    "  paddr: 0x%lx page size: 0x%lx", paddr, pg_size);
+	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,
+		    "Physical address beyond maximum supported,\n"
+		    "  paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		    paddr, vm->max_gfn, vm->page_size);
+	TEST_ASSERT(vm_untag_gpa(vm, paddr) == paddr,
+		    "Unexpected bits in paddr: %lx", paddr);
+
+	/*
+	 * Allocate upper level page tables, if not already present.  Return
+	 * early if a hugepage was created.
+	 */
+	for (current_level = vm->pgtable_levels;
+	     current_level > PG_LEVEL_4K;
+	     current_level--) {
+		pte = virt_create_upper_pte(vm, pte, vaddr, paddr,
+					    current_level, level);
+		if (*pte & PTE_LARGE_MASK)
+			return;
+	}
+
+	/* Fill in page table entry. */
+	pte = virt_get_pte(vm, pte, vaddr, PG_LEVEL_4K);
+	TEST_ASSERT(!(*pte & PTE_PRESENT_MASK),
+		    "PTE already present for 4k page at vaddr: 0x%lx", vaddr);
+	*pte = PTE_PRESENT_MASK | PTE_WRITABLE_MASK | (paddr & PHYSICAL_PAGE_MASK);
+
+	/*
+	 * Neither SEV nor TDX supports shared page tables, so only the final
+	 * leaf PTE needs manually set the C/S-bit.
+	 */
+	if (vm_is_gpa_protected(vm, paddr))
+		*pte |= vm->arch.c_bit;
+	else
+		*pte |= vm->arch.s_bit;
+}
+
+void virt_arch_pg_map(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr)
+{
+	__virt_pg_map(vm, vaddr, paddr, PG_LEVEL_4K);
+}
+
+void virt_map_level(struct kvm_vm *vm, uint64_t vaddr, uint64_t paddr,
+		    uint64_t nr_bytes, int level)
+{
+	uint64_t pg_size = PG_LEVEL_SIZE(level);
+	uint64_t nr_pages = nr_bytes / pg_size;
+	int i;
+
+	TEST_ASSERT(nr_bytes % pg_size == 0,
+		    "Region size not aligned: nr_bytes: 0x%lx, page size: 0x%lx",
+		    nr_bytes, pg_size);
+
+	for (i = 0; i < nr_pages; i++) {
+		__virt_pg_map(vm, vaddr, paddr, level);
+		sparsebit_set_num(vm->vpages_mapped, vaddr >> vm->page_shift,
+				  nr_bytes / PAGE_SIZE);
+
+		vaddr += pg_size;
+		paddr += pg_size;
+	}
+}
+
+static bool vm_is_target_pte(uint64_t *pte, int *level, int current_level)
+{
+	if (*pte & PTE_LARGE_MASK) {
+		TEST_ASSERT(*level == PG_LEVEL_NONE ||
+			    *level == current_level,
+			    "Unexpected hugepage at level %d", current_level);
+		*level = current_level;
+	}
+
+	return *level == current_level;
+}
+
+uint64_t *__vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr,
+				    int *level)
+{
+	int va_width = 12 + (vm->pgtable_levels) * 9;
+	uint64_t *pte = &vm->pgd;
+	int current_level;
+
+	TEST_ASSERT(!vm->arch.is_pt_protected,
+		    "Walking page tables of protected guests is impossible");
+
+	TEST_ASSERT(*level >= PG_LEVEL_NONE && *level <= vm->pgtable_levels,
+		    "Invalid PG_LEVEL_* '%d'", *level);
+
+	TEST_ASSERT(vm->mode == VM_MODE_PXXVYY_4K,
+		    "Unknown or unsupported guest mode: 0x%x", vm->mode);
+	TEST_ASSERT(sparsebit_is_set(vm->vpages_valid,
+		(vaddr >> vm->page_shift)),
+		"Invalid virtual address, vaddr: 0x%lx",
+		vaddr);
+	/*
+	 * Check that the vaddr is a sign-extended va_width value.
+	 */
+	TEST_ASSERT(vaddr ==
+		    (((int64_t)vaddr << (64 - va_width) >> (64 - va_width))),
+		    "Canonical check failed.  The virtual address is invalid.");
+
+	for (current_level = vm->pgtable_levels;
+	     current_level > PG_LEVEL_4K;
+	     current_level--) {
+		pte = virt_get_pte(vm, pte, vaddr, current_level);
+		if (vm_is_target_pte(pte, level, current_level))
+			return pte;
+	}
+
+	return virt_get_pte(vm, pte, vaddr, PG_LEVEL_4K);
+}
+
+uint64_t *vm_get_page_table_entry(struct kvm_vm *vm, uint64_t vaddr)
+{
+	int level = PG_LEVEL_4K;
+
+	return __vm_get_page_table_entry(vm, vaddr, &level);
+}
+
+void virt_arch_dump(FILE *stream, struct kvm_vm *vm, uint8_t indent)
+{
+	uint64_t *pml4e, *pml4e_start;
+	uint64_t *pdpe, *pdpe_start;
+	uint64_t *pde, *pde_start;
+	uint64_t *pte, *pte_start;
+
+	if (!vm->pgd_created)
+		return;
+
+	fprintf(stream, "%*s                                          "
+		"                no\n", indent, "");
+	fprintf(stream, "%*s      index hvaddr         gpaddr         "
+		"addr         w exec dirty\n",
+		indent, "");
+	pml4e_start = (uint64_t *) addr_gpa2hva(vm, vm->pgd);
+	for (uint16_t n1 = 0; n1 <= 0x1ffu; n1++) {
+		pml4e = &pml4e_start[n1];
+		if (!(*pml4e & PTE_PRESENT_MASK))
+			continue;
+		fprintf(stream, "%*spml4e 0x%-3zx %p 0x%-12lx 0x%-10llx %u "
+			" %u\n",
+			indent, "",
+			pml4e - pml4e_start, pml4e,
+			addr_hva2gpa(vm, pml4e), PTE_GET_PFN(*pml4e),
+			!!(*pml4e & PTE_WRITABLE_MASK), !!(*pml4e & PTE_NX_MASK));
+
+		pdpe_start = addr_gpa2hva(vm, *pml4e & PHYSICAL_PAGE_MASK);
+		for (uint16_t n2 = 0; n2 <= 0x1ffu; n2++) {
+			pdpe = &pdpe_start[n2];
+			if (!(*pdpe & PTE_PRESENT_MASK))
+				continue;
+			fprintf(stream, "%*spdpe  0x%-3zx %p 0x%-12lx 0x%-10llx "
+				"%u  %u\n",
+				indent, "",
+				pdpe - pdpe_start, pdpe,
+				addr_hva2gpa(vm, pdpe),
+				PTE_GET_PFN(*pdpe), !!(*pdpe & PTE_WRITABLE_MASK),
+				!!(*pdpe & PTE_NX_MASK));
+
+			pde_start = addr_gpa2hva(vm, *pdpe & PHYSICAL_PAGE_MASK);
+			for (uint16_t n3 = 0; n3 <= 0x1ffu; n3++) {
+				pde = &pde_start[n3];
+				if (!(*pde & PTE_PRESENT_MASK))
+					continue;
+				fprintf(stream, "%*spde   0x%-3zx %p "
+					"0x%-12lx 0x%-10llx %u  %u\n",
+					indent, "", pde - pde_start, pde,
+					addr_hva2gpa(vm, pde),
+					PTE_GET_PFN(*pde), !!(*pde & PTE_WRITABLE_MASK),
+					!!(*pde & PTE_NX_MASK));
+
+				pte_start = addr_gpa2hva(vm, *pde & PHYSICAL_PAGE_MASK);
+				for (uint16_t n4 = 0; n4 <= 0x1ffu; n4++) {
+					pte = &pte_start[n4];
+					if (!(*pte & PTE_PRESENT_MASK))
+						continue;
+					fprintf(stream, "%*spte   0x%-3zx %p "
+						"0x%-12lx 0x%-10llx %u  %u "
+						"    %u    0x%-10lx\n",
+						indent, "",
+						pte - pte_start, pte,
+						addr_hva2gpa(vm, pte),
+						PTE_GET_PFN(*pte),
+						!!(*pte & PTE_WRITABLE_MASK),
+						!!(*pte & PTE_NX_MASK),
+						!!(*pte & PTE_DIRTY_MASK),
+						((uint64_t) n1 << 27)
+							| ((uint64_t) n2 << 18)
+							| ((uint64_t) n3 << 9)
+							| ((uint64_t) n4));
+				}
+			}
+		}
+	}
+}
+
+/*
+ * Set Unusable Segment
+ *
+ * Input Args: None
+ *
+ * Output Args:
+ *   segp - Pointer to segment register
+ *
+ * Return: None
+ *
+ * Sets the segment register pointed to by @segp to an unusable state.
+ */
+static void kvm_seg_set_unusable(struct kvm_segment *segp)
+{
+	memset(segp, 0, sizeof(*segp));
+	segp->unusable = true;
+}
+
+static void kvm_seg_fill_gdt_64bit(struct kvm_vm *vm, struct kvm_segment *segp)
+{
+	void *gdt = addr_gva2hva(vm, vm->arch.gdt);
+	struct desc64 *desc = gdt + (segp->selector >> 3) * 8;
+
+	desc->limit0 = segp->limit & 0xFFFF;
+	desc->base0 = segp->base & 0xFFFF;
+	desc->base1 = segp->base >> 16;
+	desc->type = segp->type;
+	desc->s = segp->s;
+	desc->dpl = segp->dpl;
+	desc->p = segp->present;
+	desc->limit1 = segp->limit >> 16;
+	desc->avl = segp->avl;
+	desc->l = segp->l;
+	desc->db = segp->db;
+	desc->g = segp->g;
+	desc->base2 = segp->base >> 24;
+	if (!segp->s)
+		desc->base3 = segp->base >> 32;
+}
+
+static void kvm_seg_set_kernel_code_64bit(struct kvm_segment *segp)
+{
+	memset(segp, 0, sizeof(*segp));
+	segp->selector = KERNEL_CS;
+	segp->limit = 0xFFFFFFFFu;
+	segp->s = 0x1; /* kTypeCodeData */
+	segp->type = 0x08 | 0x01 | 0x02; /* kFlagCode | kFlagCodeAccessed
+					  * | kFlagCodeReadable
+					  */
+	segp->g = true;
+	segp->l = true;
+	segp->present = 1;
+}
+
+static void kvm_seg_set_kernel_data_64bit(struct kvm_segment *segp)
+{
+	memset(segp, 0, sizeof(*segp));
+	segp->selector = KERNEL_DS;
+	segp->limit = 0xFFFFFFFFu;
+	segp->s = 0x1; /* kTypeCodeData */
+	segp->type = 0x00 | 0x01 | 0x02; /* kFlagData | kFlagDataAccessed
+					  * | kFlagDataWritable
+					  */
+	segp->g = true;
+	segp->present = true;
+}
+
+vm_paddr_t addr_arch_gva2gpa(struct kvm_vm *vm, vm_vaddr_t gva)
+{
+	int level = PG_LEVEL_NONE;
+	uint64_t *pte = __vm_get_page_table_entry(vm, gva, &level);
+
+	TEST_ASSERT(*pte & PTE_PRESENT_MASK,
+		    "Leaf PTE not PRESENT for gva: 0x%08lx", gva);
+
+	/*
+	 * No need for a hugepage mask on the PTE, x86-64 requires the "unused"
+	 * address bits to be zero.
+	 */
+	return vm_untag_gpa(vm, PTE_GET_PA(*pte)) | (gva & ~HUGEPAGE_MASK(level));
+}
+
+static void kvm_seg_set_tss_64bit(vm_vaddr_t base, struct kvm_segment *segp)
+{
+	memset(segp, 0, sizeof(*segp));
+	segp->base = base;
+	segp->limit = 0x67;
+	segp->selector = KERNEL_TSS;
+	segp->type = 0xb;
+	segp->present = 1;
+}
+
+static void vcpu_init_sregs(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	struct kvm_sregs sregs;
+
+	TEST_ASSERT(vm->mode == VM_MODE_PXXVYY_4K,
+		    "Unknown or unsupported guest mode: 0x%x", vm->mode);
+
+	/* Set mode specific system register values. */
+	vcpu_sregs_get(vcpu, &sregs);
+
+	sregs.idt.base = vm->arch.idt;
+	sregs.idt.limit = NUM_INTERRUPTS * sizeof(struct idt_entry) - 1;
+	sregs.gdt.base = vm->arch.gdt;
+	sregs.gdt.limit = getpagesize() - 1;
+
+	sregs.cr0 = X86_CR0_PE | X86_CR0_NE | X86_CR0_PG;
+	sregs.cr4 |= X86_CR4_PAE | X86_CR4_OSFXSR;
+	if (kvm_cpu_has(X86_FEATURE_XSAVE))
+		sregs.cr4 |= X86_CR4_OSXSAVE;
+	if (vm->pgtable_levels == 5)
+		sregs.cr4 |= X86_CR4_LA57;
+	sregs.efer |= (EFER_LME | EFER_LMA | EFER_NX);
+
+	kvm_seg_set_unusable(&sregs.ldt);
+	kvm_seg_set_kernel_code_64bit(&sregs.cs);
+	kvm_seg_set_kernel_data_64bit(&sregs.ds);
+	kvm_seg_set_kernel_data_64bit(&sregs.es);
+	kvm_seg_set_kernel_data_64bit(&sregs.gs);
+	kvm_seg_set_tss_64bit(vm->arch.tss, &sregs.tr);
+
+	sregs.cr3 = vm->pgd;
+	vcpu_sregs_set(vcpu, &sregs);
+}
+
+static void vcpu_init_xcrs(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	struct kvm_xcrs xcrs = {
+		.nr_xcrs = 1,
+		.xcrs[0].xcr = 0,
+		.xcrs[0].value = kvm_cpu_supported_xcr0(),
+	};
+
+	if (!kvm_cpu_has(X86_FEATURE_XSAVE))
+		return;
+
+	vcpu_xcrs_set(vcpu, &xcrs);
+}
+
+static void set_idt_entry(struct kvm_vm *vm, int vector, unsigned long addr,
+			  int dpl, unsigned short selector)
+{
+	struct idt_entry *base =
+		(struct idt_entry *)addr_gva2hva(vm, vm->arch.idt);
+	struct idt_entry *e = &base[vector];
+
+	memset(e, 0, sizeof(*e));
+	e->offset0 = addr;
+	e->selector = selector;
+	e->ist = 0;
+	e->type = 14;
+	e->dpl = dpl;
+	e->p = 1;
+	e->offset1 = addr >> 16;
+	e->offset2 = addr >> 32;
+}
+
+static bool kvm_fixup_exception(struct ex_regs *regs)
+{
+	if (regs->r9 != KVM_EXCEPTION_MAGIC || regs->rip != regs->r10)
+		return false;
+
+	if (regs->vector == DE_VECTOR)
+		regs->vector = KVM_MAGIC_DE_VECTOR;
+
+	regs->rip = regs->r11;
+	regs->r9 = regs->vector;
+	regs->r10 = regs->error_code;
+	return true;
+}
+
+void route_exception(struct ex_regs *regs)
+{
+	typedef void(*handler)(struct ex_regs *);
+	handler *handlers = (handler *)exception_handlers;
+
+	if (handlers && handlers[regs->vector]) {
+		handlers[regs->vector](regs);
+		return;
+	}
+
+	if (kvm_fixup_exception(regs))
+		return;
+
+	GUEST_FAIL("Unhandled exception '0x%lx' at guest RIP '0x%lx'",
+		   regs->vector, regs->rip);
+}
+
+static void vm_init_descriptor_tables(struct kvm_vm *vm)
+{
+	extern void *idt_handlers;
+	struct kvm_segment seg;
+	int i;
+
+	vm->arch.gdt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+	vm->arch.idt = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+	vm->handlers = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+	vm->arch.tss = __vm_vaddr_alloc_page(vm, MEM_REGION_DATA);
+
+	/* Handlers have the same address in both address spaces.*/
+	for (i = 0; i < NUM_INTERRUPTS; i++)
+		set_idt_entry(vm, i, (unsigned long)(&idt_handlers)[i], 0, KERNEL_CS);
+
+	*(vm_vaddr_t *)addr_gva2hva(vm, (vm_vaddr_t)(&exception_handlers)) = vm->handlers;
+
+	kvm_seg_set_kernel_code_64bit(&seg);
+	kvm_seg_fill_gdt_64bit(vm, &seg);
+
+	kvm_seg_set_kernel_data_64bit(&seg);
+	kvm_seg_fill_gdt_64bit(vm, &seg);
+
+	kvm_seg_set_tss_64bit(vm->arch.tss, &seg);
+	kvm_seg_fill_gdt_64bit(vm, &seg);
+}
+
+void vm_install_exception_handler(struct kvm_vm *vm, int vector,
+			       void (*handler)(struct ex_regs *))
+{
+	vm_vaddr_t *handlers = (vm_vaddr_t *)addr_gva2hva(vm, vm->handlers);
+
+	handlers[vector] = (vm_vaddr_t)handler;
+}
+
+void assert_on_unhandled_exception(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (get_ucall(vcpu, &uc) == UCALL_ABORT)
+		REPORT_GUEST_ASSERT(uc);
+}
+
+void kvm_arch_vm_post_create(struct kvm_vm *vm, unsigned int nr_vcpus)
+{
+	int r;
+
+	TEST_ASSERT(kvm_has_cap(KVM_CAP_GET_TSC_KHZ),
+		    "Require KVM_GET_TSC_KHZ to provide udelay() to guest.");
+
+	vm_create_irqchip(vm);
+	vm_init_descriptor_tables(vm);
+
+	sync_global_to_guest(vm, host_cpu_is_intel);
+	sync_global_to_guest(vm, host_cpu_is_amd);
+	sync_global_to_guest(vm, is_forced_emulation_enabled);
+	sync_global_to_guest(vm, pmu_errata_mask);
+
+	if (is_sev_vm(vm)) {
+		struct kvm_sev_init init = { 0 };
+
+		vm_sev_ioctl(vm, KVM_SEV_INIT2, &init);
+	}
+
+	r = __vm_ioctl(vm, KVM_GET_TSC_KHZ, NULL);
+	TEST_ASSERT(r > 0, "KVM_GET_TSC_KHZ did not provide a valid TSC frequency.");
+	guest_tsc_khz = r;
+	sync_global_to_guest(vm, guest_tsc_khz);
+}
+
+void vcpu_arch_set_entry_point(struct kvm_vcpu *vcpu, void *guest_code)
+{
+	struct kvm_regs regs;
+
+	vcpu_regs_get(vcpu, &regs);
+	regs.rip = (unsigned long) guest_code;
+	vcpu_regs_set(vcpu, &regs);
+}
+
+struct kvm_vcpu *vm_arch_vcpu_add(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	struct kvm_mp_state mp_state;
+	struct kvm_regs regs;
+	vm_vaddr_t stack_vaddr;
+	struct kvm_vcpu *vcpu;
+
+	stack_vaddr = __vm_vaddr_alloc(vm, DEFAULT_STACK_PGS * getpagesize(),
+				       DEFAULT_GUEST_STACK_VADDR_MIN,
+				       MEM_REGION_DATA);
+
+	stack_vaddr += DEFAULT_STACK_PGS * getpagesize();
+
+	/*
+	 * Align stack to match calling sequence requirements in section "The
+	 * Stack Frame" of the System V ABI AMD64 Architecture Processor
+	 * Supplement, which requires the value (%rsp + 8) to be a multiple of
+	 * 16 when control is transferred to the function entry point.
+	 *
+	 * If this code is ever used to launch a vCPU with 32-bit entry point it
+	 * may need to subtract 4 bytes instead of 8 bytes.
+	 */
+	TEST_ASSERT(IS_ALIGNED(stack_vaddr, PAGE_SIZE),
+		    "__vm_vaddr_alloc() did not provide a page-aligned address");
+	stack_vaddr -= 8;
+
+	vcpu = __vm_vcpu_add(vm, vcpu_id);
+	vcpu_init_cpuid(vcpu, kvm_get_supported_cpuid());
+	vcpu_init_sregs(vm, vcpu);
+	vcpu_init_xcrs(vm, vcpu);
+
+	/* Setup guest general purpose registers */
+	vcpu_regs_get(vcpu, &regs);
+	regs.rflags = regs.rflags | 0x2;
+	regs.rsp = stack_vaddr;
+	vcpu_regs_set(vcpu, &regs);
+
+	/* Setup the MP state */
+	mp_state.mp_state = 0;
+	vcpu_mp_state_set(vcpu, &mp_state);
+
+	/*
+	 * Refresh CPUID after setting SREGS and XCR0, so that KVM's "runtime"
+	 * updates to guest CPUID, e.g. for OSXSAVE and XSAVE state size, are
+	 * reflected into selftests' vCPU CPUID cache, i.e. so that the cache
+	 * is consistent with vCPU state.
+	 */
+	vcpu_get_cpuid(vcpu);
+	return vcpu;
+}
+
+struct kvm_vcpu *vm_arch_vcpu_recreate(struct kvm_vm *vm, uint32_t vcpu_id)
+{
+	struct kvm_vcpu *vcpu = __vm_vcpu_add(vm, vcpu_id);
+
+	vcpu_init_cpuid(vcpu, kvm_get_supported_cpuid());
+
+	return vcpu;
+}
+
+void vcpu_arch_free(struct kvm_vcpu *vcpu)
+{
+	if (vcpu->cpuid)
+		free(vcpu->cpuid);
+}
+
+/* Do not use kvm_supported_cpuid directly except for validity checks. */
+static void *kvm_supported_cpuid;
+
+const struct kvm_cpuid2 *kvm_get_supported_cpuid(void)
+{
+	int kvm_fd;
+
+	if (kvm_supported_cpuid)
+		return kvm_supported_cpuid;
+
+	kvm_supported_cpuid = allocate_kvm_cpuid2(MAX_NR_CPUID_ENTRIES);
+	kvm_fd = open_kvm_dev_path_or_exit();
+
+	kvm_ioctl(kvm_fd, KVM_GET_SUPPORTED_CPUID,
+		  (struct kvm_cpuid2 *)kvm_supported_cpuid);
+
+	close(kvm_fd);
+	return kvm_supported_cpuid;
+}
+
+static uint32_t __kvm_cpu_has(const struct kvm_cpuid2 *cpuid,
+			      uint32_t function, uint32_t index,
+			      uint8_t reg, uint8_t lo, uint8_t hi)
+{
+	const struct kvm_cpuid_entry2 *entry;
+	int i;
+
+	for (i = 0; i < cpuid->nent; i++) {
+		entry = &cpuid->entries[i];
+
+		/*
+		 * The output registers in kvm_cpuid_entry2 are in alphabetical
+		 * order, but kvm_x86_cpu_feature matches that mess, so yay
+		 * pointer shenanigans!
+		 */
+		if (entry->function == function && entry->index == index)
+			return ((&entry->eax)[reg] & GENMASK(hi, lo)) >> lo;
+	}
+
+	return 0;
+}
+
+bool kvm_cpuid_has(const struct kvm_cpuid2 *cpuid,
+		   struct kvm_x86_cpu_feature feature)
+{
+	return __kvm_cpu_has(cpuid, feature.function, feature.index,
+			     feature.reg, feature.bit, feature.bit);
+}
+
+uint32_t kvm_cpuid_property(const struct kvm_cpuid2 *cpuid,
+			    struct kvm_x86_cpu_property property)
+{
+	return __kvm_cpu_has(cpuid, property.function, property.index,
+			     property.reg, property.lo_bit, property.hi_bit);
+}
+
+uint64_t kvm_get_feature_msr(uint64_t msr_index)
+{
+	struct {
+		struct kvm_msrs header;
+		struct kvm_msr_entry entry;
+	} buffer = {};
+	int r, kvm_fd;
+
+	buffer.header.nmsrs = 1;
+	buffer.entry.index = msr_index;
+	kvm_fd = open_kvm_dev_path_or_exit();
+
+	r = __kvm_ioctl(kvm_fd, KVM_GET_MSRS, &buffer.header);
+	TEST_ASSERT(r == 1, KVM_IOCTL_ERROR(KVM_GET_MSRS, r));
+
+	close(kvm_fd);
+	return buffer.entry.data;
+}
+
+void __vm_xsave_require_permission(uint64_t xfeature, const char *name)
+{
+	int kvm_fd;
+	u64 bitmask;
+	long rc;
+	struct kvm_device_attr attr = {
+		.group = 0,
+		.attr = KVM_X86_XCOMP_GUEST_SUPP,
+		.addr = (unsigned long) &bitmask,
+	};
+
+	TEST_ASSERT(!kvm_supported_cpuid,
+		    "kvm_get_supported_cpuid() cannot be used before ARCH_REQ_XCOMP_GUEST_PERM");
+
+	TEST_ASSERT(is_power_of_2(xfeature),
+		    "Dynamic XFeatures must be enabled one at a time");
+
+	kvm_fd = open_kvm_dev_path_or_exit();
+	rc = __kvm_ioctl(kvm_fd, KVM_GET_DEVICE_ATTR, &attr);
+	close(kvm_fd);
+
+	if (rc == -1 && (errno == ENXIO || errno == EINVAL))
+		__TEST_REQUIRE(0, "KVM_X86_XCOMP_GUEST_SUPP not supported");
+
+	TEST_ASSERT(rc == 0, "KVM_GET_DEVICE_ATTR(0, KVM_X86_XCOMP_GUEST_SUPP) error: %ld", rc);
+
+	__TEST_REQUIRE(bitmask & xfeature,
+		       "Required XSAVE feature '%s' not supported", name);
+
+	TEST_REQUIRE(!syscall(SYS_arch_prctl, ARCH_REQ_XCOMP_GUEST_PERM, ilog2(xfeature)));
+
+	rc = syscall(SYS_arch_prctl, ARCH_GET_XCOMP_GUEST_PERM, &bitmask);
+	TEST_ASSERT(rc == 0, "prctl(ARCH_GET_XCOMP_GUEST_PERM) error: %ld", rc);
+	TEST_ASSERT(bitmask & xfeature,
+		    "'%s' (0x%lx) not permitted after prctl(ARCH_REQ_XCOMP_GUEST_PERM) permitted=0x%lx",
+		    name, xfeature, bitmask);
+}
+
+void vcpu_init_cpuid(struct kvm_vcpu *vcpu, const struct kvm_cpuid2 *cpuid)
+{
+	TEST_ASSERT(cpuid != vcpu->cpuid, "@cpuid can't be the vCPU's CPUID");
+
+	/* Allow overriding the default CPUID. */
+	if (vcpu->cpuid && vcpu->cpuid->nent < cpuid->nent) {
+		free(vcpu->cpuid);
+		vcpu->cpuid = NULL;
+	}
+
+	if (!vcpu->cpuid)
+		vcpu->cpuid = allocate_kvm_cpuid2(cpuid->nent);
+
+	memcpy(vcpu->cpuid, cpuid, kvm_cpuid2_size(cpuid->nent));
+	vcpu_set_cpuid(vcpu);
+}
+
+void vcpu_set_cpuid_property(struct kvm_vcpu *vcpu,
+			     struct kvm_x86_cpu_property property,
+			     uint32_t value)
+{
+	struct kvm_cpuid_entry2 *entry;
+
+	entry = __vcpu_get_cpuid_entry(vcpu, property.function, property.index);
+
+	(&entry->eax)[property.reg] &= ~GENMASK(property.hi_bit, property.lo_bit);
+	(&entry->eax)[property.reg] |= value << property.lo_bit;
+
+	vcpu_set_cpuid(vcpu);
+
+	/* Sanity check that @value doesn't exceed the bounds in any way. */
+	TEST_ASSERT_EQ(kvm_cpuid_property(vcpu->cpuid, property), value);
+}
+
+void vcpu_clear_cpuid_entry(struct kvm_vcpu *vcpu, uint32_t function)
+{
+	struct kvm_cpuid_entry2 *entry = vcpu_get_cpuid_entry(vcpu, function);
+
+	entry->eax = 0;
+	entry->ebx = 0;
+	entry->ecx = 0;
+	entry->edx = 0;
+	vcpu_set_cpuid(vcpu);
+}
+
+void vcpu_set_or_clear_cpuid_feature(struct kvm_vcpu *vcpu,
+				     struct kvm_x86_cpu_feature feature,
+				     bool set)
+{
+	struct kvm_cpuid_entry2 *entry;
+	u32 *reg;
+
+	entry = __vcpu_get_cpuid_entry(vcpu, feature.function, feature.index);
+	reg = (&entry->eax) + feature.reg;
+
+	if (set)
+		*reg |= BIT(feature.bit);
+	else
+		*reg &= ~BIT(feature.bit);
+
+	vcpu_set_cpuid(vcpu);
+}
+
+uint64_t vcpu_get_msr(struct kvm_vcpu *vcpu, uint64_t msr_index)
+{
+	struct {
+		struct kvm_msrs header;
+		struct kvm_msr_entry entry;
+	} buffer = {};
+
+	buffer.header.nmsrs = 1;
+	buffer.entry.index = msr_index;
+
+	vcpu_msrs_get(vcpu, &buffer.header);
+
+	return buffer.entry.data;
+}
+
+int _vcpu_set_msr(struct kvm_vcpu *vcpu, uint64_t msr_index, uint64_t msr_value)
+{
+	struct {
+		struct kvm_msrs header;
+		struct kvm_msr_entry entry;
+	} buffer = {};
+
+	memset(&buffer, 0, sizeof(buffer));
+	buffer.header.nmsrs = 1;
+	buffer.entry.index = msr_index;
+	buffer.entry.data = msr_value;
+
+	return __vcpu_ioctl(vcpu, KVM_SET_MSRS, &buffer.header);
+}
+
+void vcpu_args_set(struct kvm_vcpu *vcpu, unsigned int num, ...)
+{
+	va_list ap;
+	struct kvm_regs regs;
+
+	TEST_ASSERT(num >= 1 && num <= 6, "Unsupported number of args,\n"
+		    "  num: %u",
+		    num);
+
+	va_start(ap, num);
+	vcpu_regs_get(vcpu, &regs);
+
+	if (num >= 1)
+		regs.rdi = va_arg(ap, uint64_t);
+
+	if (num >= 2)
+		regs.rsi = va_arg(ap, uint64_t);
+
+	if (num >= 3)
+		regs.rdx = va_arg(ap, uint64_t);
+
+	if (num >= 4)
+		regs.rcx = va_arg(ap, uint64_t);
+
+	if (num >= 5)
+		regs.r8 = va_arg(ap, uint64_t);
+
+	if (num >= 6)
+		regs.r9 = va_arg(ap, uint64_t);
+
+	vcpu_regs_set(vcpu, &regs);
+	va_end(ap);
+}
+
+void vcpu_arch_dump(FILE *stream, struct kvm_vcpu *vcpu, uint8_t indent)
+{
+	struct kvm_regs regs;
+	struct kvm_sregs sregs;
+
+	fprintf(stream, "%*svCPU ID: %u\n", indent, "", vcpu->id);
+
+	fprintf(stream, "%*sregs:\n", indent + 2, "");
+	vcpu_regs_get(vcpu, &regs);
+	regs_dump(stream, &regs, indent + 4);
+
+	fprintf(stream, "%*ssregs:\n", indent + 2, "");
+	vcpu_sregs_get(vcpu, &sregs);
+	sregs_dump(stream, &sregs, indent + 4);
+}
+
+static struct kvm_msr_list *__kvm_get_msr_index_list(bool feature_msrs)
+{
+	struct kvm_msr_list *list;
+	struct kvm_msr_list nmsrs;
+	int kvm_fd, r;
+
+	kvm_fd = open_kvm_dev_path_or_exit();
+
+	nmsrs.nmsrs = 0;
+	if (!feature_msrs)
+		r = __kvm_ioctl(kvm_fd, KVM_GET_MSR_INDEX_LIST, &nmsrs);
+	else
+		r = __kvm_ioctl(kvm_fd, KVM_GET_MSR_FEATURE_INDEX_LIST, &nmsrs);
+
+	TEST_ASSERT(r == -1 && errno == E2BIG,
+		    "Expected -E2BIG, got rc: %i errno: %i (%s)",
+		    r, errno, strerror(errno));
+
+	list = malloc(sizeof(*list) + nmsrs.nmsrs * sizeof(list->indices[0]));
+	TEST_ASSERT(list, "-ENOMEM when allocating MSR index list");
+	list->nmsrs = nmsrs.nmsrs;
+
+	if (!feature_msrs)
+		kvm_ioctl(kvm_fd, KVM_GET_MSR_INDEX_LIST, list);
+	else
+		kvm_ioctl(kvm_fd, KVM_GET_MSR_FEATURE_INDEX_LIST, list);
+	close(kvm_fd);
+
+	TEST_ASSERT(list->nmsrs == nmsrs.nmsrs,
+		    "Number of MSRs in list changed, was %d, now %d",
+		    nmsrs.nmsrs, list->nmsrs);
+	return list;
+}
+
+const struct kvm_msr_list *kvm_get_msr_index_list(void)
+{
+	static const struct kvm_msr_list *list;
+
+	if (!list)
+		list = __kvm_get_msr_index_list(false);
+	return list;
+}
+
+
+const struct kvm_msr_list *kvm_get_feature_msr_index_list(void)
+{
+	static const struct kvm_msr_list *list;
+
+	if (!list)
+		list = __kvm_get_msr_index_list(true);
+	return list;
+}
+
+bool kvm_msr_is_in_save_restore_list(uint32_t msr_index)
+{
+	const struct kvm_msr_list *list = kvm_get_msr_index_list();
+	int i;
+
+	for (i = 0; i < list->nmsrs; ++i) {
+		if (list->indices[i] == msr_index)
+			return true;
+	}
+
+	return false;
+}
+
+static void vcpu_save_xsave_state(struct kvm_vcpu *vcpu,
+				  struct kvm_x86_state *state)
+{
+	int size = vm_check_cap(vcpu->vm, KVM_CAP_XSAVE2);
+
+	if (size) {
+		state->xsave = malloc(size);
+		vcpu_xsave2_get(vcpu, state->xsave);
+	} else {
+		state->xsave = malloc(sizeof(struct kvm_xsave));
+		vcpu_xsave_get(vcpu, state->xsave);
+	}
+}
+
+struct kvm_x86_state *vcpu_save_state(struct kvm_vcpu *vcpu)
+{
+	const struct kvm_msr_list *msr_list = kvm_get_msr_index_list();
+	struct kvm_x86_state *state;
+	int i;
+
+	static int nested_size = -1;
+
+	if (nested_size == -1) {
+		nested_size = kvm_check_cap(KVM_CAP_NESTED_STATE);
+		TEST_ASSERT(nested_size <= sizeof(state->nested_),
+			    "Nested state size too big, %i > %zi",
+			    nested_size, sizeof(state->nested_));
+	}
+
+	/*
+	 * When KVM exits to userspace with KVM_EXIT_IO, KVM guarantees
+	 * guest state is consistent only after userspace re-enters the
+	 * kernel with KVM_RUN.  Complete IO prior to migrating state
+	 * to a new VM.
+	 */
+	vcpu_run_complete_io(vcpu);
+
+	state = malloc(sizeof(*state) + msr_list->nmsrs * sizeof(state->msrs.entries[0]));
+	TEST_ASSERT(state, "-ENOMEM when allocating kvm state");
+
+	vcpu_events_get(vcpu, &state->events);
+	vcpu_mp_state_get(vcpu, &state->mp_state);
+	vcpu_regs_get(vcpu, &state->regs);
+	vcpu_save_xsave_state(vcpu, state);
+
+	if (kvm_has_cap(KVM_CAP_XCRS))
+		vcpu_xcrs_get(vcpu, &state->xcrs);
+
+	vcpu_sregs_get(vcpu, &state->sregs);
+
+	if (nested_size) {
+		state->nested.size = sizeof(state->nested_);
+
+		vcpu_nested_state_get(vcpu, &state->nested);
+		TEST_ASSERT(state->nested.size <= nested_size,
+			    "Nested state size too big, %i (KVM_CHECK_CAP gave %i)",
+			    state->nested.size, nested_size);
+	} else {
+		state->nested.size = 0;
+	}
+
+	state->msrs.nmsrs = msr_list->nmsrs;
+	for (i = 0; i < msr_list->nmsrs; i++)
+		state->msrs.entries[i].index = msr_list->indices[i];
+	vcpu_msrs_get(vcpu, &state->msrs);
+
+	vcpu_debugregs_get(vcpu, &state->debugregs);
+
+	return state;
+}
+
+void vcpu_load_state(struct kvm_vcpu *vcpu, struct kvm_x86_state *state)
+{
+	vcpu_sregs_set(vcpu, &state->sregs);
+	vcpu_msrs_set(vcpu, &state->msrs);
+
+	if (kvm_has_cap(KVM_CAP_XCRS))
+		vcpu_xcrs_set(vcpu, &state->xcrs);
+
+	vcpu_xsave_set(vcpu,  state->xsave);
+	vcpu_events_set(vcpu, &state->events);
+	vcpu_mp_state_set(vcpu, &state->mp_state);
+	vcpu_debugregs_set(vcpu, &state->debugregs);
+	vcpu_regs_set(vcpu, &state->regs);
+
+	if (state->nested.size)
+		vcpu_nested_state_set(vcpu, &state->nested);
+}
+
+void kvm_x86_state_cleanup(struct kvm_x86_state *state)
+{
+	free(state->xsave);
+	free(state);
+}
+
+void kvm_get_cpu_address_width(unsigned int *pa_bits, unsigned int *va_bits)
+{
+	if (!kvm_cpu_has_p(X86_PROPERTY_MAX_PHY_ADDR)) {
+		*pa_bits = kvm_cpu_has(X86_FEATURE_PAE) ? 36 : 32;
+		*va_bits = 32;
+	} else {
+		*pa_bits = kvm_cpu_property(X86_PROPERTY_MAX_PHY_ADDR);
+		*va_bits = kvm_cpu_property(X86_PROPERTY_MAX_VIRT_ADDR);
+	}
+}
+
+void kvm_init_vm_address_properties(struct kvm_vm *vm)
+{
+	if (is_sev_vm(vm)) {
+		vm->arch.sev_fd = open_sev_dev_path_or_exit();
+		vm->arch.c_bit = BIT_ULL(this_cpu_property(X86_PROPERTY_SEV_C_BIT));
+		vm->gpa_tag_mask = vm->arch.c_bit;
+	} else {
+		vm->arch.sev_fd = -1;
+	}
+}
+
+const struct kvm_cpuid_entry2 *get_cpuid_entry(const struct kvm_cpuid2 *cpuid,
+					       uint32_t function, uint32_t index)
+{
+	int i;
+
+	for (i = 0; i < cpuid->nent; i++) {
+		if (cpuid->entries[i].function == function &&
+		    cpuid->entries[i].index == index)
+			return &cpuid->entries[i];
+	}
+
+	TEST_FAIL("CPUID function 0x%x index 0x%x not found ", function, index);
+
+	return NULL;
+}
+
+#define X86_HYPERCALL(inputs...)					\
+({									\
+	uint64_t r;							\
+									\
+	asm volatile("test %[use_vmmcall], %[use_vmmcall]\n\t"		\
+		     "jnz 1f\n\t"					\
+		     "vmcall\n\t"					\
+		     "jmp 2f\n\t"					\
+		     "1: vmmcall\n\t"					\
+		     "2:"						\
+		     : "=a"(r)						\
+		     : [use_vmmcall] "r" (host_cpu_is_amd), inputs);	\
+									\
+	r;								\
+})
+
+uint64_t kvm_hypercall(uint64_t nr, uint64_t a0, uint64_t a1, uint64_t a2,
+		       uint64_t a3)
+{
+	return X86_HYPERCALL("a"(nr), "b"(a0), "c"(a1), "d"(a2), "S"(a3));
+}
+
+uint64_t __xen_hypercall(uint64_t nr, uint64_t a0, void *a1)
+{
+	return X86_HYPERCALL("a"(nr), "D"(a0), "S"(a1));
+}
+
+void xen_hypercall(uint64_t nr, uint64_t a0, void *a1)
+{
+	GUEST_ASSERT(!__xen_hypercall(nr, a0, a1));
+}
+
+unsigned long vm_compute_max_gfn(struct kvm_vm *vm)
+{
+	const unsigned long num_ht_pages = 12 << (30 - vm->page_shift); /* 12 GiB */
+	unsigned long ht_gfn, max_gfn, max_pfn;
+	uint8_t maxphyaddr, guest_maxphyaddr;
+
+	/*
+	 * Use "guest MAXPHYADDR" from KVM if it's available.  Guest MAXPHYADDR
+	 * enumerates the max _mappable_ GPA, which can be less than the raw
+	 * MAXPHYADDR, e.g. if MAXPHYADDR=52, KVM is using TDP, and the CPU
+	 * doesn't support 5-level TDP.
+	 */
+	guest_maxphyaddr = kvm_cpu_property(X86_PROPERTY_GUEST_MAX_PHY_ADDR);
+	guest_maxphyaddr = guest_maxphyaddr ?: vm->pa_bits;
+	TEST_ASSERT(guest_maxphyaddr <= vm->pa_bits,
+		    "Guest MAXPHYADDR should never be greater than raw MAXPHYADDR");
+
+	max_gfn = (1ULL << (guest_maxphyaddr - vm->page_shift)) - 1;
+
+	/* Avoid reserved HyperTransport region on AMD processors.  */
+	if (!host_cpu_is_amd)
+		return max_gfn;
+
+	/* On parts with <40 physical address bits, the area is fully hidden */
+	if (vm->pa_bits < 40)
+		return max_gfn;
+
+	/* Before family 17h, the HyperTransport area is just below 1T.  */
+	ht_gfn = (1 << 28) - num_ht_pages;
+	if (this_cpu_family() < 0x17)
+		goto done;
+
+	/*
+	 * Otherwise it's at the top of the physical address space, possibly
+	 * reduced due to SME by bits 11:6 of CPUID[0x8000001f].EBX.  Use
+	 * the old conservative value if MAXPHYADDR is not enumerated.
+	 */
+	if (!this_cpu_has_p(X86_PROPERTY_MAX_PHY_ADDR))
+		goto done;
+
+	maxphyaddr = this_cpu_property(X86_PROPERTY_MAX_PHY_ADDR);
+	max_pfn = (1ULL << (maxphyaddr - vm->page_shift)) - 1;
+
+	if (this_cpu_has_p(X86_PROPERTY_PHYS_ADDR_REDUCTION))
+		max_pfn >>= this_cpu_property(X86_PROPERTY_PHYS_ADDR_REDUCTION);
+
+	ht_gfn = max_pfn - num_ht_pages;
+done:
+	return min(max_gfn, ht_gfn - 1);
+}
+
+void kvm_selftest_arch_init(void)
+{
+	host_cpu_is_intel = this_cpu_is_intel();
+	host_cpu_is_amd = this_cpu_is_amd();
+	is_forced_emulation_enabled = kvm_is_forced_emulation_enabled();
+
+	kvm_init_pmu_errata();
+}
+
+bool sys_clocksource_is_based_on_tsc(void)
+{
+	char *clk_name = sys_get_cur_clocksource();
+	bool ret = !strcmp(clk_name, "tsc\n") ||
+		   !strcmp(clk_name, "hyperv_clocksource_tsc_page\n");
+
+	free(clk_name);
+
+	return ret;
+}
+
+bool kvm_arch_has_default_irqchip(void)
+{
+	return true;
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/sev.c b/tools/testing/selftests/kvm/lib/x86/sev.c
new file mode 100644
index 000000000000..c3a9838f4806
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/sev.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "sev.h"
+
+/*
+ * sparsebit_next_clear() can return 0 if [x, 2**64-1] are all set, and the
+ * -1 would then cause an underflow back to 2**64 - 1. This is expected and
+ * correct.
+ *
+ * If the last range in the sparsebit is [x, y] and we try to iterate,
+ * sparsebit_next_set() will return 0, and sparsebit_next_clear() will try
+ * and find the first range, but that's correct because the condition
+ * expression would cause us to quit the loop.
+ */
+static void encrypt_region(struct kvm_vm *vm, struct userspace_mem_region *region,
+			   uint8_t page_type, bool private)
+{
+	const struct sparsebit *protected_phy_pages = region->protected_phy_pages;
+	const vm_paddr_t gpa_base = region->region.guest_phys_addr;
+	const sparsebit_idx_t lowest_page_in_region = gpa_base >> vm->page_shift;
+	sparsebit_idx_t i, j;
+
+	if (!sparsebit_any_set(protected_phy_pages))
+		return;
+
+	if (!is_sev_snp_vm(vm))
+		sev_register_encrypted_memory(vm, region);
+
+	sparsebit_for_each_set_range(protected_phy_pages, i, j) {
+		const uint64_t size = (j - i + 1) * vm->page_size;
+		const uint64_t offset = (i - lowest_page_in_region) * vm->page_size;
+
+		if (private)
+			vm_mem_set_private(vm, gpa_base + offset, size);
+
+		if (is_sev_snp_vm(vm))
+			snp_launch_update_data(vm, gpa_base + offset,
+					       (uint64_t)addr_gpa2hva(vm, gpa_base + offset),
+					       size, page_type);
+		else
+			sev_launch_update_data(vm, gpa_base + offset, size);
+
+	}
+}
+
+void sev_vm_init(struct kvm_vm *vm)
+{
+	if (vm->type == KVM_X86_DEFAULT_VM) {
+		TEST_ASSERT_EQ(vm->arch.sev_fd, -1);
+		vm->arch.sev_fd = open_sev_dev_path_or_exit();
+		vm_sev_ioctl(vm, KVM_SEV_INIT, NULL);
+	} else {
+		struct kvm_sev_init init = { 0 };
+		TEST_ASSERT_EQ(vm->type, KVM_X86_SEV_VM);
+		vm_sev_ioctl(vm, KVM_SEV_INIT2, &init);
+	}
+}
+
+void sev_es_vm_init(struct kvm_vm *vm)
+{
+	if (vm->type == KVM_X86_DEFAULT_VM) {
+		TEST_ASSERT_EQ(vm->arch.sev_fd, -1);
+		vm->arch.sev_fd = open_sev_dev_path_or_exit();
+		vm_sev_ioctl(vm, KVM_SEV_ES_INIT, NULL);
+	} else {
+		struct kvm_sev_init init = { 0 };
+		TEST_ASSERT_EQ(vm->type, KVM_X86_SEV_ES_VM);
+		vm_sev_ioctl(vm, KVM_SEV_INIT2, &init);
+	}
+}
+
+void snp_vm_init(struct kvm_vm *vm)
+{
+	struct kvm_sev_init init = { 0 };
+
+	TEST_ASSERT_EQ(vm->type, KVM_X86_SNP_VM);
+	vm_sev_ioctl(vm, KVM_SEV_INIT2, &init);
+}
+
+void sev_vm_launch(struct kvm_vm *vm, uint32_t policy)
+{
+	struct kvm_sev_launch_start launch_start = {
+		.policy = policy,
+	};
+	struct userspace_mem_region *region;
+	struct kvm_sev_guest_status status;
+	int ctr;
+
+	vm_sev_ioctl(vm, KVM_SEV_LAUNCH_START, &launch_start);
+	vm_sev_ioctl(vm, KVM_SEV_GUEST_STATUS, &status);
+
+	TEST_ASSERT_EQ(status.policy, policy);
+	TEST_ASSERT_EQ(status.state, SEV_GUEST_STATE_LAUNCH_UPDATE);
+
+	hash_for_each(vm->regions.slot_hash, ctr, region, slot_node)
+		encrypt_region(vm, region, KVM_SEV_PAGE_TYPE_INVALID, false);
+
+	if (policy & SEV_POLICY_ES)
+		vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_VMSA, NULL);
+
+	vm->arch.is_pt_protected = true;
+}
+
+void sev_vm_launch_measure(struct kvm_vm *vm, uint8_t *measurement)
+{
+	struct kvm_sev_launch_measure launch_measure;
+	struct kvm_sev_guest_status guest_status;
+
+	launch_measure.len = 256;
+	launch_measure.uaddr = (__u64)measurement;
+	vm_sev_ioctl(vm, KVM_SEV_LAUNCH_MEASURE, &launch_measure);
+
+	vm_sev_ioctl(vm, KVM_SEV_GUEST_STATUS, &guest_status);
+	TEST_ASSERT_EQ(guest_status.state, SEV_GUEST_STATE_LAUNCH_SECRET);
+}
+
+void sev_vm_launch_finish(struct kvm_vm *vm)
+{
+	struct kvm_sev_guest_status status;
+
+	vm_sev_ioctl(vm, KVM_SEV_GUEST_STATUS, &status);
+	TEST_ASSERT(status.state == SEV_GUEST_STATE_LAUNCH_UPDATE ||
+		    status.state == SEV_GUEST_STATE_LAUNCH_SECRET,
+		    "Unexpected guest state: %d", status.state);
+
+	vm_sev_ioctl(vm, KVM_SEV_LAUNCH_FINISH, NULL);
+
+	vm_sev_ioctl(vm, KVM_SEV_GUEST_STATUS, &status);
+	TEST_ASSERT_EQ(status.state, SEV_GUEST_STATE_RUNNING);
+}
+
+void snp_vm_launch_start(struct kvm_vm *vm, uint64_t policy)
+{
+	struct kvm_sev_snp_launch_start launch_start = {
+		.policy = policy,
+	};
+
+	vm_sev_ioctl(vm, KVM_SEV_SNP_LAUNCH_START, &launch_start);
+}
+
+void snp_vm_launch_update(struct kvm_vm *vm)
+{
+	struct userspace_mem_region *region;
+	int ctr;
+
+	hash_for_each(vm->regions.slot_hash, ctr, region, slot_node)
+		encrypt_region(vm, region, KVM_SEV_SNP_PAGE_TYPE_NORMAL, true);
+
+	vm->arch.is_pt_protected = true;
+}
+
+void snp_vm_launch_finish(struct kvm_vm *vm)
+{
+	struct kvm_sev_snp_launch_finish launch_finish = { 0 };
+
+	vm_sev_ioctl(vm, KVM_SEV_SNP_LAUNCH_FINISH, &launch_finish);
+}
+
+struct kvm_vm *vm_sev_create_with_one_vcpu(uint32_t type, void *guest_code,
+					   struct kvm_vcpu **cpu)
+{
+	struct vm_shape shape = {
+		.mode = VM_MODE_DEFAULT,
+		.type = type,
+	};
+	struct kvm_vm *vm;
+	struct kvm_vcpu *cpus[1];
+
+	vm = __vm_create_with_vcpus(shape, 1, 0, guest_code, cpus);
+	*cpu = cpus[0];
+
+	return vm;
+}
+
+void vm_sev_launch(struct kvm_vm *vm, uint64_t policy, uint8_t *measurement)
+{
+	if (is_sev_snp_vm(vm)) {
+		vm_enable_cap(vm, KVM_CAP_EXIT_HYPERCALL, BIT(KVM_HC_MAP_GPA_RANGE));
+
+		snp_vm_launch_start(vm, policy);
+
+		snp_vm_launch_update(vm);
+
+		snp_vm_launch_finish(vm);
+
+		return;
+	}
+
+	sev_vm_launch(vm, policy);
+
+	if (!measurement)
+		measurement = alloca(256);
+
+	sev_vm_launch_measure(vm, measurement);
+
+	sev_vm_launch_finish(vm);
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/svm.c b/tools/testing/selftests/kvm/lib/x86/svm.c
new file mode 100644
index 000000000000..d239c2097391
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/svm.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Helpers used for nested SVM testing
+ * Largely inspired from KVM unit test svm.c
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+
+#define SEV_DEV_PATH "/dev/sev"
+
+struct gpr64_regs guest_regs;
+u64 rflags;
+
+/* Allocate memory regions for nested SVM tests.
+ *
+ * Input Args:
+ *   vm - The VM to allocate guest-virtual addresses in.
+ *
+ * Output Args:
+ *   p_svm_gva - The guest virtual address for the struct svm_test_data.
+ *
+ * Return:
+ *   Pointer to structure with the addresses of the SVM areas.
+ */
+struct svm_test_data *
+vcpu_alloc_svm(struct kvm_vm *vm, vm_vaddr_t *p_svm_gva)
+{
+	vm_vaddr_t svm_gva = vm_vaddr_alloc_page(vm);
+	struct svm_test_data *svm = addr_gva2hva(vm, svm_gva);
+
+	svm->vmcb = (void *)vm_vaddr_alloc_page(vm);
+	svm->vmcb_hva = addr_gva2hva(vm, (uintptr_t)svm->vmcb);
+	svm->vmcb_gpa = addr_gva2gpa(vm, (uintptr_t)svm->vmcb);
+
+	svm->save_area = (void *)vm_vaddr_alloc_page(vm);
+	svm->save_area_hva = addr_gva2hva(vm, (uintptr_t)svm->save_area);
+	svm->save_area_gpa = addr_gva2gpa(vm, (uintptr_t)svm->save_area);
+
+	svm->msr = (void *)vm_vaddr_alloc_page(vm);
+	svm->msr_hva = addr_gva2hva(vm, (uintptr_t)svm->msr);
+	svm->msr_gpa = addr_gva2gpa(vm, (uintptr_t)svm->msr);
+	memset(svm->msr_hva, 0, getpagesize());
+
+	*p_svm_gva = svm_gva;
+	return svm;
+}
+
+static void vmcb_set_seg(struct vmcb_seg *seg, u16 selector,
+			 u64 base, u32 limit, u32 attr)
+{
+	seg->selector = selector;
+	seg->attrib = attr;
+	seg->limit = limit;
+	seg->base = base;
+}
+
+void generic_svm_setup(struct svm_test_data *svm, void *guest_rip, void *guest_rsp)
+{
+	struct vmcb *vmcb = svm->vmcb;
+	uint64_t vmcb_gpa = svm->vmcb_gpa;
+	struct vmcb_save_area *save = &vmcb->save;
+	struct vmcb_control_area *ctrl = &vmcb->control;
+	u32 data_seg_attr = 3 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
+	      | SVM_SELECTOR_DB_MASK | SVM_SELECTOR_G_MASK;
+	u32 code_seg_attr = 9 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_P_MASK
+		| SVM_SELECTOR_L_MASK | SVM_SELECTOR_G_MASK;
+	uint64_t efer;
+
+	efer = rdmsr(MSR_EFER);
+	wrmsr(MSR_EFER, efer | EFER_SVME);
+	wrmsr(MSR_VM_HSAVE_PA, svm->save_area_gpa);
+
+	memset(vmcb, 0, sizeof(*vmcb));
+	asm volatile ("vmsave %0\n\t" : : "a" (vmcb_gpa) : "memory");
+	vmcb_set_seg(&save->es, get_es(), 0, -1U, data_seg_attr);
+	vmcb_set_seg(&save->cs, get_cs(), 0, -1U, code_seg_attr);
+	vmcb_set_seg(&save->ss, get_ss(), 0, -1U, data_seg_attr);
+	vmcb_set_seg(&save->ds, get_ds(), 0, -1U, data_seg_attr);
+	vmcb_set_seg(&save->gdtr, 0, get_gdt().address, get_gdt().size, 0);
+	vmcb_set_seg(&save->idtr, 0, get_idt().address, get_idt().size, 0);
+
+	ctrl->asid = 1;
+	save->cpl = 0;
+	save->efer = rdmsr(MSR_EFER);
+	asm volatile ("mov %%cr4, %0" : "=r"(save->cr4) : : "memory");
+	asm volatile ("mov %%cr3, %0" : "=r"(save->cr3) : : "memory");
+	asm volatile ("mov %%cr0, %0" : "=r"(save->cr0) : : "memory");
+	asm volatile ("mov %%dr7, %0" : "=r"(save->dr7) : : "memory");
+	asm volatile ("mov %%dr6, %0" : "=r"(save->dr6) : : "memory");
+	asm volatile ("mov %%cr2, %0" : "=r"(save->cr2) : : "memory");
+	save->g_pat = rdmsr(MSR_IA32_CR_PAT);
+	save->dbgctl = rdmsr(MSR_IA32_DEBUGCTLMSR);
+	ctrl->intercept = (1ULL << INTERCEPT_VMRUN) |
+				(1ULL << INTERCEPT_VMMCALL);
+	ctrl->msrpm_base_pa = svm->msr_gpa;
+
+	vmcb->save.rip = (u64)guest_rip;
+	vmcb->save.rsp = (u64)guest_rsp;
+	guest_regs.rdi = (u64)svm;
+}
+
+/*
+ * save/restore 64-bit general registers except rax, rip, rsp
+ * which are directly handed through the VMCB guest processor state
+ */
+#define SAVE_GPR_C				\
+	"xchg %%rbx, guest_regs+0x20\n\t"	\
+	"xchg %%rcx, guest_regs+0x10\n\t"	\
+	"xchg %%rdx, guest_regs+0x18\n\t"	\
+	"xchg %%rbp, guest_regs+0x30\n\t"	\
+	"xchg %%rsi, guest_regs+0x38\n\t"	\
+	"xchg %%rdi, guest_regs+0x40\n\t"	\
+	"xchg %%r8,  guest_regs+0x48\n\t"	\
+	"xchg %%r9,  guest_regs+0x50\n\t"	\
+	"xchg %%r10, guest_regs+0x58\n\t"	\
+	"xchg %%r11, guest_regs+0x60\n\t"	\
+	"xchg %%r12, guest_regs+0x68\n\t"	\
+	"xchg %%r13, guest_regs+0x70\n\t"	\
+	"xchg %%r14, guest_regs+0x78\n\t"	\
+	"xchg %%r15, guest_regs+0x80\n\t"
+
+#define LOAD_GPR_C      SAVE_GPR_C
+
+/*
+ * selftests do not use interrupts so we dropped clgi/sti/cli/stgi
+ * for now. registers involved in LOAD/SAVE_GPR_C are eventually
+ * unmodified so they do not need to be in the clobber list.
+ */
+void run_guest(struct vmcb *vmcb, uint64_t vmcb_gpa)
+{
+	asm volatile (
+		"vmload %[vmcb_gpa]\n\t"
+		"mov rflags, %%r15\n\t"	// rflags
+		"mov %%r15, 0x170(%[vmcb])\n\t"
+		"mov guest_regs, %%r15\n\t"	// rax
+		"mov %%r15, 0x1f8(%[vmcb])\n\t"
+		LOAD_GPR_C
+		"vmrun %[vmcb_gpa]\n\t"
+		SAVE_GPR_C
+		"mov 0x170(%[vmcb]), %%r15\n\t"	// rflags
+		"mov %%r15, rflags\n\t"
+		"mov 0x1f8(%[vmcb]), %%r15\n\t"	// rax
+		"mov %%r15, guest_regs\n\t"
+		"vmsave %[vmcb_gpa]\n\t"
+		: : [vmcb] "r" (vmcb), [vmcb_gpa] "a" (vmcb_gpa)
+		: "r15", "memory");
+}
+
+/*
+ * Open SEV_DEV_PATH if available, otherwise exit the entire program.
+ *
+ * Return:
+ *   The opened file descriptor of /dev/sev.
+ */
+int open_sev_dev_path_or_exit(void)
+{
+	return open_path_or_exit(SEV_DEV_PATH, 0);
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/ucall.c b/tools/testing/selftests/kvm/lib/x86/ucall.c
new file mode 100644
index 000000000000..1265cecc7dd1
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/ucall.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucall support. A ucall is a "hypercall to userspace".
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+#include "kvm_util.h"
+
+#define UCALL_PIO_PORT ((uint16_t)0x1000)
+
+void ucall_arch_do_ucall(vm_vaddr_t uc)
+{
+	/*
+	 * FIXME: Revert this hack (the entire commit that added it) once nVMX
+	 * preserves L2 GPRs across a nested VM-Exit.  If a ucall from L2, e.g.
+	 * to do a GUEST_SYNC(), lands the vCPU in L1, any and all GPRs can be
+	 * clobbered by L1.  Save and restore non-volatile GPRs (clobbering RBP
+	 * in particular is problematic) along with RDX and RDI (which are
+	 * inputs), and clobber volatile GPRs. *sigh*
+	 */
+#define HORRIFIC_L2_UCALL_CLOBBER_HACK	\
+	"rcx", "rsi", "r8", "r9", "r10", "r11"
+
+	asm volatile("push %%rbp\n\t"
+		     "push %%r15\n\t"
+		     "push %%r14\n\t"
+		     "push %%r13\n\t"
+		     "push %%r12\n\t"
+		     "push %%rbx\n\t"
+		     "push %%rdx\n\t"
+		     "push %%rdi\n\t"
+		     "in %[port], %%al\n\t"
+		     "pop %%rdi\n\t"
+		     "pop %%rdx\n\t"
+		     "pop %%rbx\n\t"
+		     "pop %%r12\n\t"
+		     "pop %%r13\n\t"
+		     "pop %%r14\n\t"
+		     "pop %%r15\n\t"
+		     "pop %%rbp\n\t"
+		: : [port] "d" (UCALL_PIO_PORT), "D" (uc) : "rax", "memory",
+		     HORRIFIC_L2_UCALL_CLOBBER_HACK);
+}
+
+void *ucall_arch_get_ucall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	if (run->exit_reason == KVM_EXIT_IO && run->io.port == UCALL_PIO_PORT) {
+		struct kvm_regs regs;
+
+		vcpu_regs_get(vcpu, &regs);
+		return (void *)regs.rdi;
+	}
+	return NULL;
+}
diff --git a/tools/testing/selftests/kvm/lib/x86/vmx.c b/tools/testing/selftests/kvm/lib/x86/vmx.c
new file mode 100644
index 000000000000..29b082a58daa
--- /dev/null
+++ b/tools/testing/selftests/kvm/lib/x86/vmx.c
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2018, Google LLC.
+ */
+
+#include <asm/msr-index.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#define PAGE_SHIFT_4K  12
+
+#define KVM_EPT_PAGE_TABLE_MIN_PADDR 0x1c0000
+
+bool enable_evmcs;
+
+struct hv_enlightened_vmcs *current_evmcs;
+struct hv_vp_assist_page *current_vp_assist;
+
+struct eptPageTableEntry {
+	uint64_t readable:1;
+	uint64_t writable:1;
+	uint64_t executable:1;
+	uint64_t memory_type:3;
+	uint64_t ignore_pat:1;
+	uint64_t page_size:1;
+	uint64_t accessed:1;
+	uint64_t dirty:1;
+	uint64_t ignored_11_10:2;
+	uint64_t address:40;
+	uint64_t ignored_62_52:11;
+	uint64_t suppress_ve:1;
+};
+
+struct eptPageTablePointer {
+	uint64_t memory_type:3;
+	uint64_t page_walk_length:3;
+	uint64_t ad_enabled:1;
+	uint64_t reserved_11_07:5;
+	uint64_t address:40;
+	uint64_t reserved_63_52:12;
+};
+int vcpu_enable_evmcs(struct kvm_vcpu *vcpu)
+{
+	uint16_t evmcs_ver;
+
+	vcpu_enable_cap(vcpu, KVM_CAP_HYPERV_ENLIGHTENED_VMCS,
+			(unsigned long)&evmcs_ver);
+
+	/* KVM should return supported EVMCS version range */
+	TEST_ASSERT(((evmcs_ver >> 8) >= (evmcs_ver & 0xff)) &&
+		    (evmcs_ver & 0xff) > 0,
+		    "Incorrect EVMCS version range: %x:%x",
+		    evmcs_ver & 0xff, evmcs_ver >> 8);
+
+	return evmcs_ver;
+}
+
+/* Allocate memory regions for nested VMX tests.
+ *
+ * Input Args:
+ *   vm - The VM to allocate guest-virtual addresses in.
+ *
+ * Output Args:
+ *   p_vmx_gva - The guest virtual address for the struct vmx_pages.
+ *
+ * Return:
+ *   Pointer to structure with the addresses of the VMX areas.
+ */
+struct vmx_pages *
+vcpu_alloc_vmx(struct kvm_vm *vm, vm_vaddr_t *p_vmx_gva)
+{
+	vm_vaddr_t vmx_gva = vm_vaddr_alloc_page(vm);
+	struct vmx_pages *vmx = addr_gva2hva(vm, vmx_gva);
+
+	/* Setup of a region of guest memory for the vmxon region. */
+	vmx->vmxon = (void *)vm_vaddr_alloc_page(vm);
+	vmx->vmxon_hva = addr_gva2hva(vm, (uintptr_t)vmx->vmxon);
+	vmx->vmxon_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vmxon);
+
+	/* Setup of a region of guest memory for a vmcs. */
+	vmx->vmcs = (void *)vm_vaddr_alloc_page(vm);
+	vmx->vmcs_hva = addr_gva2hva(vm, (uintptr_t)vmx->vmcs);
+	vmx->vmcs_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vmcs);
+
+	/* Setup of a region of guest memory for the MSR bitmap. */
+	vmx->msr = (void *)vm_vaddr_alloc_page(vm);
+	vmx->msr_hva = addr_gva2hva(vm, (uintptr_t)vmx->msr);
+	vmx->msr_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->msr);
+	memset(vmx->msr_hva, 0, getpagesize());
+
+	/* Setup of a region of guest memory for the shadow VMCS. */
+	vmx->shadow_vmcs = (void *)vm_vaddr_alloc_page(vm);
+	vmx->shadow_vmcs_hva = addr_gva2hva(vm, (uintptr_t)vmx->shadow_vmcs);
+	vmx->shadow_vmcs_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->shadow_vmcs);
+
+	/* Setup of a region of guest memory for the VMREAD and VMWRITE bitmaps. */
+	vmx->vmread = (void *)vm_vaddr_alloc_page(vm);
+	vmx->vmread_hva = addr_gva2hva(vm, (uintptr_t)vmx->vmread);
+	vmx->vmread_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vmread);
+	memset(vmx->vmread_hva, 0, getpagesize());
+
+	vmx->vmwrite = (void *)vm_vaddr_alloc_page(vm);
+	vmx->vmwrite_hva = addr_gva2hva(vm, (uintptr_t)vmx->vmwrite);
+	vmx->vmwrite_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->vmwrite);
+	memset(vmx->vmwrite_hva, 0, getpagesize());
+
+	*p_vmx_gva = vmx_gva;
+	return vmx;
+}
+
+bool prepare_for_vmx_operation(struct vmx_pages *vmx)
+{
+	uint64_t feature_control;
+	uint64_t required;
+	unsigned long cr0;
+	unsigned long cr4;
+
+	/*
+	 * Ensure bits in CR0 and CR4 are valid in VMX operation:
+	 * - Bit X is 1 in _FIXED0: bit X is fixed to 1 in CRx.
+	 * - Bit X is 0 in _FIXED1: bit X is fixed to 0 in CRx.
+	 */
+	__asm__ __volatile__("mov %%cr0, %0" : "=r"(cr0) : : "memory");
+	cr0 &= rdmsr(MSR_IA32_VMX_CR0_FIXED1);
+	cr0 |= rdmsr(MSR_IA32_VMX_CR0_FIXED0);
+	__asm__ __volatile__("mov %0, %%cr0" : : "r"(cr0) : "memory");
+
+	__asm__ __volatile__("mov %%cr4, %0" : "=r"(cr4) : : "memory");
+	cr4 &= rdmsr(MSR_IA32_VMX_CR4_FIXED1);
+	cr4 |= rdmsr(MSR_IA32_VMX_CR4_FIXED0);
+	/* Enable VMX operation */
+	cr4 |= X86_CR4_VMXE;
+	__asm__ __volatile__("mov %0, %%cr4" : : "r"(cr4) : "memory");
+
+	/*
+	 * Configure IA32_FEATURE_CONTROL MSR to allow VMXON:
+	 *  Bit 0: Lock bit. If clear, VMXON causes a #GP.
+	 *  Bit 2: Enables VMXON outside of SMX operation. If clear, VMXON
+	 *    outside of SMX causes a #GP.
+	 */
+	required = FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX;
+	required |= FEAT_CTL_LOCKED;
+	feature_control = rdmsr(MSR_IA32_FEAT_CTL);
+	if ((feature_control & required) != required)
+		wrmsr(MSR_IA32_FEAT_CTL, feature_control | required);
+
+	/* Enter VMX root operation. */
+	*(uint32_t *)(vmx->vmxon) = vmcs_revision();
+	if (vmxon(vmx->vmxon_gpa))
+		return false;
+
+	return true;
+}
+
+bool load_vmcs(struct vmx_pages *vmx)
+{
+	/* Load a VMCS. */
+	*(uint32_t *)(vmx->vmcs) = vmcs_revision();
+	if (vmclear(vmx->vmcs_gpa))
+		return false;
+
+	if (vmptrld(vmx->vmcs_gpa))
+		return false;
+
+	/* Setup shadow VMCS, do not load it yet. */
+	*(uint32_t *)(vmx->shadow_vmcs) = vmcs_revision() | 0x80000000ul;
+	if (vmclear(vmx->shadow_vmcs_gpa))
+		return false;
+
+	return true;
+}
+
+static bool ept_vpid_cap_supported(uint64_t mask)
+{
+	return rdmsr(MSR_IA32_VMX_EPT_VPID_CAP) & mask;
+}
+
+bool ept_1g_pages_supported(void)
+{
+	return ept_vpid_cap_supported(VMX_EPT_VPID_CAP_1G_PAGES);
+}
+
+/*
+ * Initialize the control fields to the most basic settings possible.
+ */
+static inline void init_vmcs_control_fields(struct vmx_pages *vmx)
+{
+	uint32_t sec_exec_ctl = 0;
+
+	vmwrite(VIRTUAL_PROCESSOR_ID, 0);
+	vmwrite(POSTED_INTR_NV, 0);
+
+	vmwrite(PIN_BASED_VM_EXEC_CONTROL, rdmsr(MSR_IA32_VMX_TRUE_PINBASED_CTLS));
+
+	if (vmx->eptp_gpa) {
+		uint64_t ept_paddr;
+		struct eptPageTablePointer eptp = {
+			.memory_type = X86_MEMTYPE_WB,
+			.page_walk_length = 3, /* + 1 */
+			.ad_enabled = ept_vpid_cap_supported(VMX_EPT_VPID_CAP_AD_BITS),
+			.address = vmx->eptp_gpa >> PAGE_SHIFT_4K,
+		};
+
+		memcpy(&ept_paddr, &eptp, sizeof(ept_paddr));
+		vmwrite(EPT_POINTER, ept_paddr);
+		sec_exec_ctl |= SECONDARY_EXEC_ENABLE_EPT;
+	}
+
+	if (!vmwrite(SECONDARY_VM_EXEC_CONTROL, sec_exec_ctl))
+		vmwrite(CPU_BASED_VM_EXEC_CONTROL,
+			rdmsr(MSR_IA32_VMX_TRUE_PROCBASED_CTLS) | CPU_BASED_ACTIVATE_SECONDARY_CONTROLS);
+	else {
+		vmwrite(CPU_BASED_VM_EXEC_CONTROL, rdmsr(MSR_IA32_VMX_TRUE_PROCBASED_CTLS));
+		GUEST_ASSERT(!sec_exec_ctl);
+	}
+
+	vmwrite(EXCEPTION_BITMAP, 0);
+	vmwrite(PAGE_FAULT_ERROR_CODE_MASK, 0);
+	vmwrite(PAGE_FAULT_ERROR_CODE_MATCH, -1); /* Never match */
+	vmwrite(CR3_TARGET_COUNT, 0);
+	vmwrite(VM_EXIT_CONTROLS, rdmsr(MSR_IA32_VMX_EXIT_CTLS) |
+		VM_EXIT_HOST_ADDR_SPACE_SIZE);	  /* 64-bit host */
+	vmwrite(VM_EXIT_MSR_STORE_COUNT, 0);
+	vmwrite(VM_EXIT_MSR_LOAD_COUNT, 0);
+	vmwrite(VM_ENTRY_CONTROLS, rdmsr(MSR_IA32_VMX_ENTRY_CTLS) |
+		VM_ENTRY_IA32E_MODE);		  /* 64-bit guest */
+	vmwrite(VM_ENTRY_MSR_LOAD_COUNT, 0);
+	vmwrite(VM_ENTRY_INTR_INFO_FIELD, 0);
+	vmwrite(TPR_THRESHOLD, 0);
+
+	vmwrite(CR0_GUEST_HOST_MASK, 0);
+	vmwrite(CR4_GUEST_HOST_MASK, 0);
+	vmwrite(CR0_READ_SHADOW, get_cr0());
+	vmwrite(CR4_READ_SHADOW, get_cr4());
+
+	vmwrite(MSR_BITMAP, vmx->msr_gpa);
+	vmwrite(VMREAD_BITMAP, vmx->vmread_gpa);
+	vmwrite(VMWRITE_BITMAP, vmx->vmwrite_gpa);
+}
+
+/*
+ * Initialize the host state fields based on the current host state, with
+ * the exception of HOST_RSP and HOST_RIP, which should be set by vmlaunch
+ * or vmresume.
+ */
+static inline void init_vmcs_host_state(void)
+{
+	uint32_t exit_controls = vmreadz(VM_EXIT_CONTROLS);
+
+	vmwrite(HOST_ES_SELECTOR, get_es());
+	vmwrite(HOST_CS_SELECTOR, get_cs());
+	vmwrite(HOST_SS_SELECTOR, get_ss());
+	vmwrite(HOST_DS_SELECTOR, get_ds());
+	vmwrite(HOST_FS_SELECTOR, get_fs());
+	vmwrite(HOST_GS_SELECTOR, get_gs());
+	vmwrite(HOST_TR_SELECTOR, get_tr());
+
+	if (exit_controls & VM_EXIT_LOAD_IA32_PAT)
+		vmwrite(HOST_IA32_PAT, rdmsr(MSR_IA32_CR_PAT));
+	if (exit_controls & VM_EXIT_LOAD_IA32_EFER)
+		vmwrite(HOST_IA32_EFER, rdmsr(MSR_EFER));
+	if (exit_controls & VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL)
+		vmwrite(HOST_IA32_PERF_GLOBAL_CTRL,
+			rdmsr(MSR_CORE_PERF_GLOBAL_CTRL));
+
+	vmwrite(HOST_IA32_SYSENTER_CS, rdmsr(MSR_IA32_SYSENTER_CS));
+
+	vmwrite(HOST_CR0, get_cr0());
+	vmwrite(HOST_CR3, get_cr3());
+	vmwrite(HOST_CR4, get_cr4());
+	vmwrite(HOST_FS_BASE, rdmsr(MSR_FS_BASE));
+	vmwrite(HOST_GS_BASE, rdmsr(MSR_GS_BASE));
+	vmwrite(HOST_TR_BASE,
+		get_desc64_base((struct desc64 *)(get_gdt().address + get_tr())));
+	vmwrite(HOST_GDTR_BASE, get_gdt().address);
+	vmwrite(HOST_IDTR_BASE, get_idt().address);
+	vmwrite(HOST_IA32_SYSENTER_ESP, rdmsr(MSR_IA32_SYSENTER_ESP));
+	vmwrite(HOST_IA32_SYSENTER_EIP, rdmsr(MSR_IA32_SYSENTER_EIP));
+}
+
+/*
+ * Initialize the guest state fields essentially as a clone of
+ * the host state fields. Some host state fields have fixed
+ * values, and we set the corresponding guest state fields accordingly.
+ */
+static inline void init_vmcs_guest_state(void *rip, void *rsp)
+{
+	vmwrite(GUEST_ES_SELECTOR, vmreadz(HOST_ES_SELECTOR));
+	vmwrite(GUEST_CS_SELECTOR, vmreadz(HOST_CS_SELECTOR));
+	vmwrite(GUEST_SS_SELECTOR, vmreadz(HOST_SS_SELECTOR));
+	vmwrite(GUEST_DS_SELECTOR, vmreadz(HOST_DS_SELECTOR));
+	vmwrite(GUEST_FS_SELECTOR, vmreadz(HOST_FS_SELECTOR));
+	vmwrite(GUEST_GS_SELECTOR, vmreadz(HOST_GS_SELECTOR));
+	vmwrite(GUEST_LDTR_SELECTOR, 0);
+	vmwrite(GUEST_TR_SELECTOR, vmreadz(HOST_TR_SELECTOR));
+	vmwrite(GUEST_INTR_STATUS, 0);
+	vmwrite(GUEST_PML_INDEX, 0);
+
+	vmwrite(VMCS_LINK_POINTER, -1ll);
+	vmwrite(GUEST_IA32_DEBUGCTL, 0);
+	vmwrite(GUEST_IA32_PAT, vmreadz(HOST_IA32_PAT));
+	vmwrite(GUEST_IA32_EFER, vmreadz(HOST_IA32_EFER));
+	vmwrite(GUEST_IA32_PERF_GLOBAL_CTRL,
+		vmreadz(HOST_IA32_PERF_GLOBAL_CTRL));
+
+	vmwrite(GUEST_ES_LIMIT, -1);
+	vmwrite(GUEST_CS_LIMIT, -1);
+	vmwrite(GUEST_SS_LIMIT, -1);
+	vmwrite(GUEST_DS_LIMIT, -1);
+	vmwrite(GUEST_FS_LIMIT, -1);
+	vmwrite(GUEST_GS_LIMIT, -1);
+	vmwrite(GUEST_LDTR_LIMIT, -1);
+	vmwrite(GUEST_TR_LIMIT, 0x67);
+	vmwrite(GUEST_GDTR_LIMIT, 0xffff);
+	vmwrite(GUEST_IDTR_LIMIT, 0xffff);
+	vmwrite(GUEST_ES_AR_BYTES,
+		vmreadz(GUEST_ES_SELECTOR) == 0 ? 0x10000 : 0xc093);
+	vmwrite(GUEST_CS_AR_BYTES, 0xa09b);
+	vmwrite(GUEST_SS_AR_BYTES, 0xc093);
+	vmwrite(GUEST_DS_AR_BYTES,
+		vmreadz(GUEST_DS_SELECTOR) == 0 ? 0x10000 : 0xc093);
+	vmwrite(GUEST_FS_AR_BYTES,
+		vmreadz(GUEST_FS_SELECTOR) == 0 ? 0x10000 : 0xc093);
+	vmwrite(GUEST_GS_AR_BYTES,
+		vmreadz(GUEST_GS_SELECTOR) == 0 ? 0x10000 : 0xc093);
+	vmwrite(GUEST_LDTR_AR_BYTES, 0x10000);
+	vmwrite(GUEST_TR_AR_BYTES, 0x8b);
+	vmwrite(GUEST_INTERRUPTIBILITY_INFO, 0);
+	vmwrite(GUEST_ACTIVITY_STATE, 0);
+	vmwrite(GUEST_SYSENTER_CS, vmreadz(HOST_IA32_SYSENTER_CS));
+	vmwrite(VMX_PREEMPTION_TIMER_VALUE, 0);
+
+	vmwrite(GUEST_CR0, vmreadz(HOST_CR0));
+	vmwrite(GUEST_CR3, vmreadz(HOST_CR3));
+	vmwrite(GUEST_CR4, vmreadz(HOST_CR4));
+	vmwrite(GUEST_ES_BASE, 0);
+	vmwrite(GUEST_CS_BASE, 0);
+	vmwrite(GUEST_SS_BASE, 0);
+	vmwrite(GUEST_DS_BASE, 0);
+	vmwrite(GUEST_FS_BASE, vmreadz(HOST_FS_BASE));
+	vmwrite(GUEST_GS_BASE, vmreadz(HOST_GS_BASE));
+	vmwrite(GUEST_LDTR_BASE, 0);
+	vmwrite(GUEST_TR_BASE, vmreadz(HOST_TR_BASE));
+	vmwrite(GUEST_GDTR_BASE, vmreadz(HOST_GDTR_BASE));
+	vmwrite(GUEST_IDTR_BASE, vmreadz(HOST_IDTR_BASE));
+	vmwrite(GUEST_DR7, 0x400);
+	vmwrite(GUEST_RSP, (uint64_t)rsp);
+	vmwrite(GUEST_RIP, (uint64_t)rip);
+	vmwrite(GUEST_RFLAGS, 2);
+	vmwrite(GUEST_PENDING_DBG_EXCEPTIONS, 0);
+	vmwrite(GUEST_SYSENTER_ESP, vmreadz(HOST_IA32_SYSENTER_ESP));
+	vmwrite(GUEST_SYSENTER_EIP, vmreadz(HOST_IA32_SYSENTER_EIP));
+}
+
+void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp)
+{
+	init_vmcs_control_fields(vmx);
+	init_vmcs_host_state();
+	init_vmcs_guest_state(guest_rip, guest_rsp);
+}
+
+static void nested_create_pte(struct kvm_vm *vm,
+			      struct eptPageTableEntry *pte,
+			      uint64_t nested_paddr,
+			      uint64_t paddr,
+			      int current_level,
+			      int target_level)
+{
+	if (!pte->readable) {
+		pte->writable = true;
+		pte->readable = true;
+		pte->executable = true;
+		pte->page_size = (current_level == target_level);
+		if (pte->page_size)
+			pte->address = paddr >> vm->page_shift;
+		else
+			pte->address = vm_alloc_page_table(vm) >> vm->page_shift;
+	} else {
+		/*
+		 * Entry already present.  Assert that the caller doesn't want
+		 * a hugepage at this level, and that there isn't a hugepage at
+		 * this level.
+		 */
+		TEST_ASSERT(current_level != target_level,
+			    "Cannot create hugepage at level: %u, nested_paddr: 0x%lx",
+			    current_level, nested_paddr);
+		TEST_ASSERT(!pte->page_size,
+			    "Cannot create page table at level: %u, nested_paddr: 0x%lx",
+			    current_level, nested_paddr);
+	}
+}
+
+
+void __nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		     uint64_t nested_paddr, uint64_t paddr, int target_level)
+{
+	const uint64_t page_size = PG_LEVEL_SIZE(target_level);
+	struct eptPageTableEntry *pt = vmx->eptp_hva, *pte;
+	uint16_t index;
+
+	TEST_ASSERT(vm->mode == VM_MODE_PXXVYY_4K,
+		    "Unknown or unsupported guest mode: 0x%x", vm->mode);
+
+	TEST_ASSERT((nested_paddr >> 48) == 0,
+		    "Nested physical address 0x%lx is > 48-bits and requires 5-level EPT",
+		    nested_paddr);
+	TEST_ASSERT((nested_paddr % page_size) == 0,
+		    "Nested physical address not on page boundary,\n"
+		    "  nested_paddr: 0x%lx page_size: 0x%lx",
+		    nested_paddr, page_size);
+	TEST_ASSERT((nested_paddr >> vm->page_shift) <= vm->max_gfn,
+		    "Physical address beyond beyond maximum supported,\n"
+		    "  nested_paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		    paddr, vm->max_gfn, vm->page_size);
+	TEST_ASSERT((paddr % page_size) == 0,
+		    "Physical address not on page boundary,\n"
+		    "  paddr: 0x%lx page_size: 0x%lx",
+		    paddr, page_size);
+	TEST_ASSERT((paddr >> vm->page_shift) <= vm->max_gfn,
+		    "Physical address beyond beyond maximum supported,\n"
+		    "  paddr: 0x%lx vm->max_gfn: 0x%lx vm->page_size: 0x%x",
+		    paddr, vm->max_gfn, vm->page_size);
+
+	for (int level = PG_LEVEL_512G; level >= PG_LEVEL_4K; level--) {
+		index = (nested_paddr >> PG_LEVEL_SHIFT(level)) & 0x1ffu;
+		pte = &pt[index];
+
+		nested_create_pte(vm, pte, nested_paddr, paddr, level, target_level);
+
+		if (pte->page_size)
+			break;
+
+		pt = addr_gpa2hva(vm, pte->address * vm->page_size);
+	}
+
+	/*
+	 * For now mark these as accessed and dirty because the only
+	 * testcase we have needs that.  Can be reconsidered later.
+	 */
+	pte->accessed = true;
+	pte->dirty = true;
+
+}
+
+void nested_pg_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		   uint64_t nested_paddr, uint64_t paddr)
+{
+	__nested_pg_map(vmx, vm, nested_paddr, paddr, PG_LEVEL_4K);
+}
+
+/*
+ * Map a range of EPT guest physical addresses to the VM's physical address
+ *
+ * Input Args:
+ *   vm - Virtual Machine
+ *   nested_paddr - Nested guest physical address to map
+ *   paddr - VM Physical Address
+ *   size - The size of the range to map
+ *   level - The level at which to map the range
+ *
+ * Output Args: None
+ *
+ * Return: None
+ *
+ * Within the VM given by vm, creates a nested guest translation for the
+ * page range starting at nested_paddr to the page range starting at paddr.
+ */
+void __nested_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		  uint64_t nested_paddr, uint64_t paddr, uint64_t size,
+		  int level)
+{
+	size_t page_size = PG_LEVEL_SIZE(level);
+	size_t npages = size / page_size;
+
+	TEST_ASSERT(nested_paddr + size > nested_paddr, "Vaddr overflow");
+	TEST_ASSERT(paddr + size > paddr, "Paddr overflow");
+
+	while (npages--) {
+		__nested_pg_map(vmx, vm, nested_paddr, paddr, level);
+		nested_paddr += page_size;
+		paddr += page_size;
+	}
+}
+
+void nested_map(struct vmx_pages *vmx, struct kvm_vm *vm,
+		uint64_t nested_paddr, uint64_t paddr, uint64_t size)
+{
+	__nested_map(vmx, vm, nested_paddr, paddr, size, PG_LEVEL_4K);
+}
+
+/* Prepare an identity extended page table that maps all the
+ * physical pages in VM.
+ */
+void nested_map_memslot(struct vmx_pages *vmx, struct kvm_vm *vm,
+			uint32_t memslot)
+{
+	sparsebit_idx_t i, last;
+	struct userspace_mem_region *region =
+		memslot2region(vm, memslot);
+
+	i = (region->region.guest_phys_addr >> vm->page_shift) - 1;
+	last = i + (region->region.memory_size >> vm->page_shift);
+	for (;;) {
+		i = sparsebit_next_clear(region->unused_phy_pages, i);
+		if (i > last)
+			break;
+
+		nested_map(vmx, vm,
+			   (uint64_t)i << vm->page_shift,
+			   (uint64_t)i << vm->page_shift,
+			   1 << vm->page_shift);
+	}
+}
+
+/* Identity map a region with 1GiB Pages. */
+void nested_identity_map_1g(struct vmx_pages *vmx, struct kvm_vm *vm,
+			    uint64_t addr, uint64_t size)
+{
+	__nested_map(vmx, vm, addr, addr, size, PG_LEVEL_1G);
+}
+
+bool kvm_cpu_has_ept(void)
+{
+	uint64_t ctrl;
+
+	ctrl = kvm_get_feature_msr(MSR_IA32_VMX_TRUE_PROCBASED_CTLS) >> 32;
+	if (!(ctrl & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS))
+		return false;
+
+	ctrl = kvm_get_feature_msr(MSR_IA32_VMX_PROCBASED_CTLS2) >> 32;
+	return ctrl & SECONDARY_EXEC_ENABLE_EPT;
+}
+
+void prepare_eptp(struct vmx_pages *vmx, struct kvm_vm *vm)
+{
+	TEST_ASSERT(kvm_cpu_has_ept(), "KVM doesn't support nested EPT");
+
+	vmx->eptp = (void *)vm_vaddr_alloc_page(vm);
+	vmx->eptp_hva = addr_gva2hva(vm, (uintptr_t)vmx->eptp);
+	vmx->eptp_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->eptp);
+}
+
+void prepare_virtualize_apic_accesses(struct vmx_pages *vmx, struct kvm_vm *vm)
+{
+	vmx->apic_access = (void *)vm_vaddr_alloc_page(vm);
+	vmx->apic_access_hva = addr_gva2hva(vm, (uintptr_t)vmx->apic_access);
+	vmx->apic_access_gpa = addr_gva2gpa(vm, (uintptr_t)vmx->apic_access);
+}
diff --git a/tools/testing/selftests/kvm/loongarch/arch_timer.c b/tools/testing/selftests/kvm/loongarch/arch_timer.c
new file mode 100644
index 000000000000..355ecac30954
--- /dev/null
+++ b/tools/testing/selftests/kvm/loongarch/arch_timer.c
@@ -0,0 +1,200 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * The test validates periodic/one-shot constant timer IRQ using
+ * CSR.TCFG and CSR.TVAL registers.
+ */
+#include "arch_timer.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "timer_test.h"
+#include "ucall_common.h"
+
+static void do_idle(void)
+{
+	unsigned int intid;
+	unsigned long estat;
+
+	__asm__ __volatile__("idle 0" : : : "memory");
+
+	estat = csr_read(LOONGARCH_CSR_ESTAT);
+	intid = !!(estat & BIT(INT_TI));
+
+	/* Make sure pending timer IRQ arrived */
+	GUEST_ASSERT_EQ(intid, 1);
+	csr_write(CSR_TINTCLR_TI, LOONGARCH_CSR_TINTCLR);
+}
+
+static void guest_irq_handler(struct ex_regs *regs)
+{
+	unsigned int intid;
+	uint32_t cpu = guest_get_vcpuid();
+	uint64_t xcnt, val, cfg, xcnt_diff_us;
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	intid = !!(regs->estat & BIT(INT_TI));
+
+	/* Make sure we are dealing with the correct timer IRQ */
+	GUEST_ASSERT_EQ(intid, 1);
+
+	cfg = timer_get_cfg();
+	if (cfg & CSR_TCFG_PERIOD) {
+		WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter - 1);
+		if (shared_data->nr_iter == 0)
+			disable_timer();
+		csr_write(CSR_TINTCLR_TI, LOONGARCH_CSR_TINTCLR);
+		return;
+	}
+
+	/*
+	 * On real machine, value of LOONGARCH_CSR_TVAL is BIT_ULL(48) - 1
+	 * On virtual machine, its value counts down from BIT_ULL(48) - 1
+	 */
+	val = timer_get_val();
+	xcnt = timer_get_cycles();
+	xcnt_diff_us = cycles_to_usec(xcnt - shared_data->xcnt);
+
+	/* Basic 'timer condition met' check */
+	__GUEST_ASSERT(val > cfg,
+			"val = 0x%lx, cfg = 0x%lx, xcnt_diff_us = 0x%lx",
+			val, cfg, xcnt_diff_us);
+
+	csr_write(CSR_TINTCLR_TI, LOONGARCH_CSR_TINTCLR);
+	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
+}
+
+static void guest_test_period_timer(uint32_t cpu)
+{
+	uint32_t irq_iter, config_iter;
+	uint64_t us;
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	shared_data->nr_iter = test_args.nr_iter;
+	shared_data->xcnt = timer_get_cycles();
+	us = msecs_to_usecs(test_args.timer_period_ms) + test_args.timer_err_margin_us;
+	timer_set_next_cmp_ms(test_args.timer_period_ms, true);
+
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		/* Setup a timeout for the interrupt to arrive */
+		udelay(us);
+	}
+
+	irq_iter = READ_ONCE(shared_data->nr_iter);
+	__GUEST_ASSERT(irq_iter == 0,
+			"irq_iter = 0x%x.\n"
+			"  Guest period timer interrupt was not triggered within the specified\n"
+			"  interval, try to increase the error margin by [-e] option.\n",
+			irq_iter);
+}
+
+static void guest_test_oneshot_timer(uint32_t cpu)
+{
+	uint32_t irq_iter, config_iter;
+	uint64_t us;
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	shared_data->nr_iter = 0;
+	shared_data->guest_stage = 0;
+	us = msecs_to_usecs(test_args.timer_period_ms) + test_args.timer_err_margin_us;
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		shared_data->xcnt = timer_get_cycles();
+
+		/* Setup the next interrupt */
+		timer_set_next_cmp_ms(test_args.timer_period_ms, false);
+		/* Setup a timeout for the interrupt to arrive */
+		udelay(us);
+
+		irq_iter = READ_ONCE(shared_data->nr_iter);
+		__GUEST_ASSERT(config_iter + 1 == irq_iter,
+				"config_iter + 1 = 0x%x, irq_iter = 0x%x.\n"
+				"  Guest timer interrupt was not triggered within the specified\n"
+				"  interval, try to increase the error margin by [-e] option.\n",
+				config_iter + 1, irq_iter);
+	}
+}
+
+static void guest_test_emulate_timer(uint32_t cpu)
+{
+	uint32_t config_iter;
+	uint64_t xcnt_diff_us, us;
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	local_irq_disable();
+	shared_data->nr_iter = 0;
+	us = msecs_to_usecs(test_args.timer_period_ms);
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		shared_data->xcnt = timer_get_cycles();
+
+		/* Setup the next interrupt */
+		timer_set_next_cmp_ms(test_args.timer_period_ms, false);
+		do_idle();
+
+		xcnt_diff_us = cycles_to_usec(timer_get_cycles() - shared_data->xcnt);
+		__GUEST_ASSERT(xcnt_diff_us >= us,
+				"xcnt_diff_us = 0x%lx, us = 0x%lx.\n",
+				xcnt_diff_us, us);
+	}
+	local_irq_enable();
+}
+
+static void guest_time_count_test(uint32_t cpu)
+{
+	uint32_t config_iter;
+	unsigned long start, end, prev, us;
+
+	/* Assuming that test case starts to run in 1 second */
+	start = timer_get_cycles();
+	us = msec_to_cycles(1000);
+	__GUEST_ASSERT(start <= us,
+			"start = 0x%lx, us = 0x%lx.\n",
+			start, us);
+
+	us = msec_to_cycles(test_args.timer_period_ms);
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		start = timer_get_cycles();
+		end = start + us;
+		/* test time count growing up always */
+		while (start < end) {
+			prev = start;
+			start = timer_get_cycles();
+			__GUEST_ASSERT(prev <= start,
+					"prev = 0x%lx, start = 0x%lx.\n",
+					prev, start);
+		}
+	}
+}
+
+static void guest_code(void)
+{
+	uint32_t cpu = guest_get_vcpuid();
+
+	/* must run at first */
+	guest_time_count_test(cpu);
+
+	timer_irq_enable();
+	local_irq_enable();
+	guest_test_period_timer(cpu);
+	guest_test_oneshot_timer(cpu);
+	guest_test_emulate_timer(cpu);
+
+	GUEST_DONE();
+}
+
+struct kvm_vm *test_vm_create(void)
+{
+	struct kvm_vm *vm;
+	int nr_vcpus = test_args.nr_vcpus;
+
+	vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
+	vm_init_descriptor_tables(vm);
+	vm_install_exception_handler(vm, EXCCODE_INT, guest_irq_handler);
+
+	/* Make all the test's cmdline args visible to the guest */
+	sync_global_to_guest(vm, test_args);
+
+	return vm;
+}
+
+void test_vm_cleanup(struct kvm_vm *vm)
+{
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/memslot_modification_stress_test.c b/tools/testing/selftests/kvm/memslot_modification_stress_test.c
new file mode 100644
index 000000000000..3cdfa3b19b85
--- /dev/null
+++ b/tools/testing/selftests/kvm/memslot_modification_stress_test.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM memslot modification stress test
+ * Adapted from demand_paging_test.c
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2020, Google, Inc.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <asm/unistd.h>
+#include <time.h>
+#include <poll.h>
+#include <pthread.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/userfaultfd.h>
+
+#include "memstress.h"
+#include "processor.h"
+#include "test_util.h"
+#include "guest_modes.h"
+#include "ucall_common.h"
+
+#define DUMMY_MEMSLOT_INDEX 7
+
+#define DEFAULT_MEMSLOT_MODIFICATION_ITERATIONS 10
+
+
+static int nr_vcpus = 1;
+static uint64_t guest_percpu_mem_size = DEFAULT_PER_VCPU_MEM_SIZE;
+
+static void vcpu_worker(struct memstress_vcpu_args *vcpu_args)
+{
+	struct kvm_vcpu *vcpu = vcpu_args->vcpu;
+	struct kvm_run *run;
+	int ret;
+
+	run = vcpu->run;
+
+	/* Let the guest access its memory until a stop signal is received */
+	while (!READ_ONCE(memstress_args.stop_vcpus)) {
+		ret = _vcpu_run(vcpu);
+		TEST_ASSERT(ret == 0, "vcpu_run failed: %d", ret);
+
+		if (get_ucall(vcpu, NULL) == UCALL_SYNC)
+			continue;
+
+		TEST_ASSERT(false,
+			    "Invalid guest sync status: exit_reason=%s\n",
+			    exit_reason_str(run->exit_reason));
+	}
+}
+
+static void add_remove_memslot(struct kvm_vm *vm, useconds_t delay,
+			       uint64_t nr_modifications)
+{
+	uint64_t pages = max_t(int, vm->page_size, getpagesize()) / vm->page_size;
+	uint64_t gpa;
+	int i;
+
+	/*
+	 * Add the dummy memslot just below the memstress memslot, which is
+	 * at the top of the guest physical address space.
+	 */
+	gpa = memstress_args.gpa - pages * vm->page_size;
+
+	for (i = 0; i < nr_modifications; i++) {
+		usleep(delay);
+		vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, gpa,
+					    DUMMY_MEMSLOT_INDEX, pages, 0);
+
+		vm_mem_region_delete(vm, DUMMY_MEMSLOT_INDEX);
+	}
+}
+
+struct test_params {
+	useconds_t delay;
+	uint64_t nr_iterations;
+	bool partition_vcpu_memory_access;
+	bool disable_slot_zap_quirk;
+};
+
+static void run_test(enum vm_guest_mode mode, void *arg)
+{
+	struct test_params *p = arg;
+	struct kvm_vm *vm;
+
+	vm = memstress_create_vm(mode, nr_vcpus, guest_percpu_mem_size, 1,
+				 VM_MEM_SRC_ANONYMOUS,
+				 p->partition_vcpu_memory_access);
+#ifdef __x86_64__
+	if (p->disable_slot_zap_quirk)
+		vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+
+	pr_info("Memslot zap quirk %s\n", p->disable_slot_zap_quirk ?
+		"disabled" : "enabled");
+#endif
+
+	pr_info("Finished creating vCPUs\n");
+
+	memstress_start_vcpu_threads(nr_vcpus, vcpu_worker);
+
+	pr_info("Started all vCPUs\n");
+
+	add_remove_memslot(vm, p->delay, p->nr_iterations);
+
+	memstress_join_vcpu_threads(nr_vcpus);
+	pr_info("All vCPU threads joined\n");
+
+	memstress_destroy_vm(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-m mode] [-d delay_usec] [-q]\n"
+	       "          [-b memory] [-v vcpus] [-o] [-i iterations]\n", name);
+	guest_modes_help();
+	printf(" -d: add a delay between each iteration of adding and\n"
+	       "     deleting a memslot in usec.\n");
+	printf(" -q: Disable memslot zap quirk.\n");
+	printf(" -b: specify the size of the memory region which should be\n"
+	       "     accessed by each vCPU. e.g. 10M or 3G.\n"
+	       "     Default: 1G\n");
+	printf(" -v: specify the number of vCPUs to run.\n");
+	printf(" -o: Overlap guest memory accesses instead of partitioning\n"
+	       "     them into a separate region of memory for each vCPU.\n");
+	printf(" -i: specify the number of iterations of adding and removing\n"
+	       "     a memslot.\n"
+	       "     Default: %d\n", DEFAULT_MEMSLOT_MODIFICATION_ITERATIONS);
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	int max_vcpus = kvm_check_cap(KVM_CAP_MAX_VCPUS);
+	int opt;
+	struct test_params p = {
+		.delay = 0,
+		.nr_iterations = DEFAULT_MEMSLOT_MODIFICATION_ITERATIONS,
+		.partition_vcpu_memory_access = true
+	};
+
+	guest_modes_append_default();
+
+	while ((opt = getopt(argc, argv, "hm:d:qb:v:oi:")) != -1) {
+		switch (opt) {
+		case 'm':
+			guest_modes_cmdline(optarg);
+			break;
+		case 'd':
+			p.delay = atoi_non_negative("Delay", optarg);
+			break;
+		case 'b':
+			guest_percpu_mem_size = parse_size(optarg);
+			break;
+		case 'v':
+			nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			TEST_ASSERT(nr_vcpus <= max_vcpus,
+				    "Invalid number of vcpus, must be between 1 and %d",
+				    max_vcpus);
+			break;
+		case 'o':
+			p.partition_vcpu_memory_access = false;
+			break;
+		case 'i':
+			p.nr_iterations = atoi_positive("Number of iterations", optarg);
+			break;
+#ifdef __x86_64__
+		case 'q':
+			p.disable_slot_zap_quirk = true;
+
+			TEST_REQUIRE(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) &
+				     KVM_X86_QUIRK_SLOT_ZAP_ALL);
+			break;
+#endif
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	for_each_guest_mode(run_test, &p);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/memslot_perf_test.c b/tools/testing/selftests/kvm/memslot_perf_test.c
new file mode 100644
index 000000000000..5087d082c4b0
--- /dev/null
+++ b/tools/testing/selftests/kvm/memslot_perf_test.c
@@ -0,0 +1,1146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A memslot-related performance benchmark.
+ *
+ * Copyright (C) 2021 Oracle and/or its affiliates.
+ *
+ * Basic guest setup / host vCPU thread code lifted from set_memory_region_test.
+ */
+#include <pthread.h>
+#include <sched.h>
+#include <semaphore.h>
+#include <stdatomic.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/compiler.h>
+#include <linux/sizes.h>
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+#include <ucall_common.h>
+
+#define MEM_EXTRA_SIZE		SZ_64K
+
+#define MEM_SIZE		(SZ_512M + MEM_EXTRA_SIZE)
+#define MEM_GPA			SZ_256M
+#define MEM_AUX_GPA		MEM_GPA
+#define MEM_SYNC_GPA		MEM_AUX_GPA
+#define MEM_TEST_GPA		(MEM_AUX_GPA + MEM_EXTRA_SIZE)
+#define MEM_TEST_SIZE		(MEM_SIZE - MEM_EXTRA_SIZE)
+
+/*
+ * 32 MiB is max size that gets well over 100 iterations on 509 slots.
+ * Considering that each slot needs to have at least one page up to
+ * 8194 slots in use can then be tested (although with slightly
+ * limited resolution).
+ */
+#define MEM_SIZE_MAP		(SZ_32M + MEM_EXTRA_SIZE)
+#define MEM_TEST_MAP_SIZE	(MEM_SIZE_MAP - MEM_EXTRA_SIZE)
+
+/*
+ * 128 MiB is min size that fills 32k slots with at least one page in each
+ * while at the same time gets 100+ iterations in such test
+ *
+ * 2 MiB chunk size like a typical huge page
+ */
+#define MEM_TEST_UNMAP_SIZE		SZ_128M
+#define MEM_TEST_UNMAP_CHUNK_SIZE	SZ_2M
+
+/*
+ * For the move active test the middle of the test area is placed on
+ * a memslot boundary: half lies in the memslot being moved, half in
+ * other memslot(s).
+ *
+ * We have different number of memory slots, excluding the reserved
+ * memory slot 0, on various architectures and configurations. The
+ * memory size in this test is calculated by picking the maximal
+ * last memory slot's memory size, with alignment to the largest
+ * supported page size (64KB). In this way, the selected memory
+ * size for this test is compatible with test_memslot_move_prepare().
+ *
+ * architecture   slots    memory-per-slot    memory-on-last-slot
+ * --------------------------------------------------------------
+ * x86-4KB        32763    16KB               160KB
+ * arm64-4KB      32766    16KB               112KB
+ * arm64-16KB     32766    16KB               112KB
+ * arm64-64KB     8192     64KB               128KB
+ */
+#define MEM_TEST_MOVE_SIZE		(3 * SZ_64K)
+#define MEM_TEST_MOVE_GPA_DEST		(MEM_GPA + MEM_SIZE)
+static_assert(MEM_TEST_MOVE_SIZE <= MEM_TEST_SIZE,
+	      "invalid move test region size");
+
+#define MEM_TEST_VAL_1 0x1122334455667788
+#define MEM_TEST_VAL_2 0x99AABBCCDDEEFF00
+
+struct vm_data {
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	pthread_t vcpu_thread;
+	uint32_t nslots;
+	uint64_t npages;
+	uint64_t pages_per_slot;
+	void **hva_slots;
+	bool mmio_ok;
+	uint64_t mmio_gpa_min;
+	uint64_t mmio_gpa_max;
+};
+
+struct sync_area {
+	uint32_t    guest_page_size;
+	atomic_bool start_flag;
+	atomic_bool exit_flag;
+	atomic_bool sync_flag;
+	void *move_area_ptr;
+};
+
+/*
+ * Technically, we need also for the atomic bool to be address-free, which
+ * is recommended, but not strictly required, by C11 for lockless
+ * implementations.
+ * However, in practice both GCC and Clang fulfill this requirement on
+ * all KVM-supported platforms.
+ */
+static_assert(ATOMIC_BOOL_LOCK_FREE == 2, "atomic bool is not lockless");
+
+static sem_t vcpu_ready;
+
+static bool map_unmap_verify;
+#ifdef __x86_64__
+static bool disable_slot_zap_quirk;
+#endif
+
+static bool verbose;
+#define pr_info_v(...)				\
+	do {					\
+		if (verbose)			\
+			pr_info(__VA_ARGS__);	\
+	} while (0)
+
+static void check_mmio_access(struct vm_data *data, struct kvm_run *run)
+{
+	TEST_ASSERT(data->mmio_ok, "Unexpected mmio exit");
+	TEST_ASSERT(run->mmio.is_write, "Unexpected mmio read");
+	TEST_ASSERT(run->mmio.len == 8,
+		    "Unexpected exit mmio size = %u", run->mmio.len);
+	TEST_ASSERT(run->mmio.phys_addr >= data->mmio_gpa_min &&
+		    run->mmio.phys_addr <= data->mmio_gpa_max,
+		    "Unexpected exit mmio address = 0x%llx",
+		    run->mmio.phys_addr);
+}
+
+static void *vcpu_worker(void *__data)
+{
+	struct vm_data *data = __data;
+	struct kvm_vcpu *vcpu = data->vcpu;
+	struct kvm_run *run = vcpu->run;
+	struct ucall uc;
+
+	while (1) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			TEST_ASSERT(uc.args[1] == 0,
+				"Unexpected sync ucall, got %lx",
+				(ulong)uc.args[1]);
+			sem_post(&vcpu_ready);
+			continue;
+		case UCALL_NONE:
+			if (run->exit_reason == KVM_EXIT_MMIO)
+				check_mmio_access(data, run);
+			else
+				goto done;
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	return NULL;
+}
+
+static void wait_for_vcpu(void)
+{
+	struct timespec ts;
+
+	TEST_ASSERT(!clock_gettime(CLOCK_REALTIME, &ts),
+		    "clock_gettime() failed: %d", errno);
+
+	ts.tv_sec += 2;
+	TEST_ASSERT(!sem_timedwait(&vcpu_ready, &ts),
+		    "sem_timedwait() failed: %d", errno);
+}
+
+static void *vm_gpa2hva(struct vm_data *data, uint64_t gpa, uint64_t *rempages)
+{
+	uint64_t gpage, pgoffs;
+	uint32_t slot, slotoffs;
+	void *base;
+	uint32_t guest_page_size = data->vm->page_size;
+
+	TEST_ASSERT(gpa >= MEM_GPA, "Too low gpa to translate");
+	TEST_ASSERT(gpa < MEM_GPA + data->npages * guest_page_size,
+		    "Too high gpa to translate");
+	gpa -= MEM_GPA;
+
+	gpage = gpa / guest_page_size;
+	pgoffs = gpa % guest_page_size;
+	slot = min(gpage / data->pages_per_slot, (uint64_t)data->nslots - 1);
+	slotoffs = gpage - (slot * data->pages_per_slot);
+
+	if (rempages) {
+		uint64_t slotpages;
+
+		if (slot == data->nslots - 1)
+			slotpages = data->npages - slot * data->pages_per_slot;
+		else
+			slotpages = data->pages_per_slot;
+
+		TEST_ASSERT(!pgoffs,
+			    "Asking for remaining pages in slot but gpa not page aligned");
+		*rempages = slotpages - slotoffs;
+	}
+
+	base = data->hva_slots[slot];
+	return (uint8_t *)base + slotoffs * guest_page_size + pgoffs;
+}
+
+static uint64_t vm_slot2gpa(struct vm_data *data, uint32_t slot)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+
+	TEST_ASSERT(slot < data->nslots, "Too high slot number");
+
+	return MEM_GPA + slot * data->pages_per_slot * guest_page_size;
+}
+
+static struct vm_data *alloc_vm(void)
+{
+	struct vm_data *data;
+
+	data = malloc(sizeof(*data));
+	TEST_ASSERT(data, "malloc(vmdata) failed");
+
+	data->vm = NULL;
+	data->vcpu = NULL;
+	data->hva_slots = NULL;
+
+	return data;
+}
+
+static bool check_slot_pages(uint32_t host_page_size, uint32_t guest_page_size,
+			     uint64_t pages_per_slot, uint64_t rempages)
+{
+	if (!pages_per_slot)
+		return false;
+
+	if ((pages_per_slot * guest_page_size) % host_page_size)
+		return false;
+
+	if ((rempages * guest_page_size) % host_page_size)
+		return false;
+
+	return true;
+}
+
+
+static uint64_t get_max_slots(struct vm_data *data, uint32_t host_page_size)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t mempages, pages_per_slot, rempages;
+	uint64_t slots;
+
+	mempages = data->npages;
+	slots = data->nslots;
+	while (--slots > 1) {
+		pages_per_slot = mempages / slots;
+		if (!pages_per_slot)
+			continue;
+
+		rempages = mempages % pages_per_slot;
+		if (check_slot_pages(host_page_size, guest_page_size,
+				     pages_per_slot, rempages))
+			return slots + 1;	/* slot 0 is reserved */
+	}
+
+	return 0;
+}
+
+static bool prepare_vm(struct vm_data *data, int nslots, uint64_t *maxslots,
+		       void *guest_code, uint64_t mem_size,
+		       struct timespec *slot_runtime)
+{
+	uint64_t mempages, rempages;
+	uint64_t guest_addr;
+	uint32_t slot, host_page_size, guest_page_size;
+	struct timespec tstart;
+	struct sync_area *sync;
+
+	host_page_size = getpagesize();
+	guest_page_size = vm_guest_mode_params[VM_MODE_DEFAULT].page_size;
+	mempages = mem_size / guest_page_size;
+
+	data->vm = __vm_create_with_one_vcpu(&data->vcpu, mempages, guest_code);
+	TEST_ASSERT(data->vm->page_size == guest_page_size, "Invalid VM page size");
+
+	data->npages = mempages;
+	TEST_ASSERT(data->npages > 1, "Can't test without any memory");
+	data->nslots = nslots;
+	data->pages_per_slot = data->npages / data->nslots;
+	rempages = data->npages % data->nslots;
+	if (!check_slot_pages(host_page_size, guest_page_size,
+			      data->pages_per_slot, rempages)) {
+		*maxslots = get_max_slots(data, host_page_size);
+		return false;
+	}
+
+	data->hva_slots = malloc(sizeof(*data->hva_slots) * data->nslots);
+	TEST_ASSERT(data->hva_slots, "malloc() fail");
+
+	pr_info_v("Adding slots 1..%i, each slot with %"PRIu64" pages + %"PRIu64" extra pages last\n",
+		data->nslots, data->pages_per_slot, rempages);
+
+	clock_gettime(CLOCK_MONOTONIC, &tstart);
+	for (slot = 1, guest_addr = MEM_GPA; slot <= data->nslots; slot++) {
+		uint64_t npages;
+
+		npages = data->pages_per_slot;
+		if (slot == data->nslots)
+			npages += rempages;
+
+		vm_userspace_mem_region_add(data->vm, VM_MEM_SRC_ANONYMOUS,
+					    guest_addr, slot, npages,
+					    0);
+		guest_addr += npages * guest_page_size;
+	}
+	*slot_runtime = timespec_elapsed(tstart);
+
+	for (slot = 1, guest_addr = MEM_GPA; slot <= data->nslots; slot++) {
+		uint64_t npages;
+		uint64_t gpa;
+
+		npages = data->pages_per_slot;
+		if (slot == data->nslots)
+			npages += rempages;
+
+		gpa = vm_phy_pages_alloc(data->vm, npages, guest_addr, slot);
+		TEST_ASSERT(gpa == guest_addr,
+			    "vm_phy_pages_alloc() failed");
+
+		data->hva_slots[slot - 1] = addr_gpa2hva(data->vm, guest_addr);
+		memset(data->hva_slots[slot - 1], 0, npages * guest_page_size);
+
+		guest_addr += npages * guest_page_size;
+	}
+
+	virt_map(data->vm, MEM_GPA, MEM_GPA, data->npages);
+
+	sync = (typeof(sync))vm_gpa2hva(data, MEM_SYNC_GPA, NULL);
+	sync->guest_page_size = data->vm->page_size;
+	atomic_init(&sync->start_flag, false);
+	atomic_init(&sync->exit_flag, false);
+	atomic_init(&sync->sync_flag, false);
+
+	data->mmio_ok = false;
+
+	return true;
+}
+
+static void launch_vm(struct vm_data *data)
+{
+	pr_info_v("Launching the test VM\n");
+
+	pthread_create(&data->vcpu_thread, NULL, vcpu_worker, data);
+
+	/* Ensure the guest thread is spun up. */
+	wait_for_vcpu();
+}
+
+static void free_vm(struct vm_data *data)
+{
+	kvm_vm_free(data->vm);
+	free(data->hva_slots);
+	free(data);
+}
+
+static void wait_guest_exit(struct vm_data *data)
+{
+	pthread_join(data->vcpu_thread, NULL);
+}
+
+static void let_guest_run(struct sync_area *sync)
+{
+	atomic_store_explicit(&sync->start_flag, true, memory_order_release);
+}
+
+static void guest_spin_until_start(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+
+	while (!atomic_load_explicit(&sync->start_flag, memory_order_acquire))
+		;
+}
+
+static void make_guest_exit(struct sync_area *sync)
+{
+	atomic_store_explicit(&sync->exit_flag, true, memory_order_release);
+}
+
+static bool _guest_should_exit(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+
+	return atomic_load_explicit(&sync->exit_flag, memory_order_acquire);
+}
+
+#define guest_should_exit() unlikely(_guest_should_exit())
+
+/*
+ * noinline so we can easily see how much time the host spends waiting
+ * for the guest.
+ * For the same reason use alarm() instead of polling clock_gettime()
+ * to implement a wait timeout.
+ */
+static noinline void host_perform_sync(struct sync_area *sync)
+{
+	alarm(10);
+
+	atomic_store_explicit(&sync->sync_flag, true, memory_order_release);
+	while (atomic_load_explicit(&sync->sync_flag, memory_order_acquire))
+		;
+
+	alarm(0);
+}
+
+static bool guest_perform_sync(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+	bool expected;
+
+	do {
+		if (guest_should_exit())
+			return false;
+
+		expected = true;
+	} while (!atomic_compare_exchange_weak_explicit(&sync->sync_flag,
+							&expected, false,
+							memory_order_acq_rel,
+							memory_order_relaxed));
+
+	return true;
+}
+
+static void guest_code_test_memslot_move(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+	uint32_t page_size = (typeof(page_size))READ_ONCE(sync->guest_page_size);
+	uintptr_t base = (typeof(base))READ_ONCE(sync->move_area_ptr);
+
+	GUEST_SYNC(0);
+
+	guest_spin_until_start();
+
+	while (!guest_should_exit()) {
+		uintptr_t ptr;
+
+		for (ptr = base; ptr < base + MEM_TEST_MOVE_SIZE;
+		     ptr += page_size)
+			*(uint64_t *)ptr = MEM_TEST_VAL_1;
+
+		/*
+		 * No host sync here since the MMIO exits are so expensive
+		 * that the host would spend most of its time waiting for
+		 * the guest and so instead of measuring memslot move
+		 * performance we would measure the performance and
+		 * likelihood of MMIO exits
+		 */
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_code_test_memslot_map(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+	uint32_t page_size = (typeof(page_size))READ_ONCE(sync->guest_page_size);
+
+	GUEST_SYNC(0);
+
+	guest_spin_until_start();
+
+	while (1) {
+		uintptr_t ptr;
+
+		for (ptr = MEM_TEST_GPA;
+		     ptr < MEM_TEST_GPA + MEM_TEST_MAP_SIZE / 2;
+		     ptr += page_size)
+			*(uint64_t *)ptr = MEM_TEST_VAL_1;
+
+		if (!guest_perform_sync())
+			break;
+
+		for (ptr = MEM_TEST_GPA + MEM_TEST_MAP_SIZE / 2;
+		     ptr < MEM_TEST_GPA + MEM_TEST_MAP_SIZE;
+		     ptr += page_size)
+			*(uint64_t *)ptr = MEM_TEST_VAL_2;
+
+		if (!guest_perform_sync())
+			break;
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_code_test_memslot_unmap(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+
+	GUEST_SYNC(0);
+
+	guest_spin_until_start();
+
+	while (1) {
+		uintptr_t ptr = MEM_TEST_GPA;
+
+		/*
+		 * We can afford to access (map) just a small number of pages
+		 * per host sync as otherwise the host will spend
+		 * a significant amount of its time waiting for the guest
+		 * (instead of doing unmap operations), so this will
+		 * effectively turn this test into a map performance test.
+		 *
+		 * Just access a single page to be on the safe side.
+		 */
+		*(uint64_t *)ptr = MEM_TEST_VAL_1;
+
+		if (!guest_perform_sync())
+			break;
+
+		ptr += MEM_TEST_UNMAP_SIZE / 2;
+		*(uint64_t *)ptr = MEM_TEST_VAL_2;
+
+		if (!guest_perform_sync())
+			break;
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_code_test_memslot_rw(void)
+{
+	struct sync_area *sync = (typeof(sync))MEM_SYNC_GPA;
+	uint32_t page_size = (typeof(page_size))READ_ONCE(sync->guest_page_size);
+
+	GUEST_SYNC(0);
+
+	guest_spin_until_start();
+
+	while (1) {
+		uintptr_t ptr;
+
+		for (ptr = MEM_TEST_GPA;
+		     ptr < MEM_TEST_GPA + MEM_TEST_SIZE; ptr += page_size)
+			*(uint64_t *)ptr = MEM_TEST_VAL_1;
+
+		if (!guest_perform_sync())
+			break;
+
+		for (ptr = MEM_TEST_GPA + page_size / 2;
+		     ptr < MEM_TEST_GPA + MEM_TEST_SIZE; ptr += page_size) {
+			uint64_t val = *(uint64_t *)ptr;
+
+			GUEST_ASSERT_EQ(val, MEM_TEST_VAL_2);
+			*(uint64_t *)ptr = 0;
+		}
+
+		if (!guest_perform_sync())
+			break;
+	}
+
+	GUEST_DONE();
+}
+
+static bool test_memslot_move_prepare(struct vm_data *data,
+				      struct sync_area *sync,
+				      uint64_t *maxslots, bool isactive)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t movesrcgpa, movetestgpa;
+
+#ifdef __x86_64__
+	if (disable_slot_zap_quirk)
+		vm_enable_cap(data->vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+#endif
+
+	movesrcgpa = vm_slot2gpa(data, data->nslots - 1);
+
+	if (isactive) {
+		uint64_t lastpages;
+
+		vm_gpa2hva(data, movesrcgpa, &lastpages);
+		if (lastpages * guest_page_size < MEM_TEST_MOVE_SIZE / 2) {
+			*maxslots = 0;
+			return false;
+		}
+	}
+
+	movetestgpa = movesrcgpa - (MEM_TEST_MOVE_SIZE / (isactive ? 2 : 1));
+	sync->move_area_ptr = (void *)movetestgpa;
+
+	if (isactive) {
+		data->mmio_ok = true;
+		data->mmio_gpa_min = movesrcgpa;
+		data->mmio_gpa_max = movesrcgpa + MEM_TEST_MOVE_SIZE / 2 - 1;
+	}
+
+	return true;
+}
+
+static bool test_memslot_move_prepare_active(struct vm_data *data,
+					     struct sync_area *sync,
+					     uint64_t *maxslots)
+{
+	return test_memslot_move_prepare(data, sync, maxslots, true);
+}
+
+static bool test_memslot_move_prepare_inactive(struct vm_data *data,
+					       struct sync_area *sync,
+					       uint64_t *maxslots)
+{
+	return test_memslot_move_prepare(data, sync, maxslots, false);
+}
+
+static void test_memslot_move_loop(struct vm_data *data, struct sync_area *sync)
+{
+	uint64_t movesrcgpa;
+
+	movesrcgpa = vm_slot2gpa(data, data->nslots - 1);
+	vm_mem_region_move(data->vm, data->nslots - 1 + 1,
+			   MEM_TEST_MOVE_GPA_DEST);
+	vm_mem_region_move(data->vm, data->nslots - 1 + 1, movesrcgpa);
+}
+
+static void test_memslot_do_unmap(struct vm_data *data,
+				  uint64_t offsp, uint64_t count)
+{
+	uint64_t gpa, ctr;
+	uint32_t guest_page_size = data->vm->page_size;
+
+	for (gpa = MEM_TEST_GPA + offsp * guest_page_size, ctr = 0; ctr < count; ) {
+		uint64_t npages;
+		void *hva;
+		int ret;
+
+		hva = vm_gpa2hva(data, gpa, &npages);
+		TEST_ASSERT(npages, "Empty memory slot at gptr 0x%"PRIx64, gpa);
+		npages = min(npages, count - ctr);
+		ret = madvise(hva, npages * guest_page_size, MADV_DONTNEED);
+		TEST_ASSERT(!ret,
+			    "madvise(%p, MADV_DONTNEED) on VM memory should not fail for gptr 0x%"PRIx64,
+			    hva, gpa);
+		ctr += npages;
+		gpa += npages * guest_page_size;
+	}
+	TEST_ASSERT(ctr == count,
+		    "madvise(MADV_DONTNEED) should exactly cover all of the requested area");
+}
+
+static void test_memslot_map_unmap_check(struct vm_data *data,
+					 uint64_t offsp, uint64_t valexp)
+{
+	uint64_t gpa;
+	uint64_t *val;
+	uint32_t guest_page_size = data->vm->page_size;
+
+	if (!map_unmap_verify)
+		return;
+
+	gpa = MEM_TEST_GPA + offsp * guest_page_size;
+	val = (typeof(val))vm_gpa2hva(data, gpa, NULL);
+	TEST_ASSERT(*val == valexp,
+		    "Guest written values should read back correctly before unmap (%"PRIu64" vs %"PRIu64" @ %"PRIx64")",
+		    *val, valexp, gpa);
+	*val = 0;
+}
+
+static void test_memslot_map_loop(struct vm_data *data, struct sync_area *sync)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t guest_pages = MEM_TEST_MAP_SIZE / guest_page_size;
+
+	/*
+	 * Unmap the second half of the test area while guest writes to (maps)
+	 * the first half.
+	 */
+	test_memslot_do_unmap(data, guest_pages / 2, guest_pages / 2);
+
+	/*
+	 * Wait for the guest to finish writing the first half of the test
+	 * area, verify the written value on the first and the last page of
+	 * this area and then unmap it.
+	 * Meanwhile, the guest is writing to (mapping) the second half of
+	 * the test area.
+	 */
+	host_perform_sync(sync);
+	test_memslot_map_unmap_check(data, 0, MEM_TEST_VAL_1);
+	test_memslot_map_unmap_check(data, guest_pages / 2 - 1, MEM_TEST_VAL_1);
+	test_memslot_do_unmap(data, 0, guest_pages / 2);
+
+
+	/*
+	 * Wait for the guest to finish writing the second half of the test
+	 * area and verify the written value on the first and the last page
+	 * of this area.
+	 * The area will be unmapped at the beginning of the next loop
+	 * iteration.
+	 * Meanwhile, the guest is writing to (mapping) the first half of
+	 * the test area.
+	 */
+	host_perform_sync(sync);
+	test_memslot_map_unmap_check(data, guest_pages / 2, MEM_TEST_VAL_2);
+	test_memslot_map_unmap_check(data, guest_pages - 1, MEM_TEST_VAL_2);
+}
+
+static void test_memslot_unmap_loop_common(struct vm_data *data,
+					   struct sync_area *sync,
+					   uint64_t chunk)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t guest_pages = MEM_TEST_UNMAP_SIZE / guest_page_size;
+	uint64_t ctr;
+
+	/*
+	 * Wait for the guest to finish mapping page(s) in the first half
+	 * of the test area, verify the written value and then perform unmap
+	 * of this area.
+	 * Meanwhile, the guest is writing to (mapping) page(s) in the second
+	 * half of the test area.
+	 */
+	host_perform_sync(sync);
+	test_memslot_map_unmap_check(data, 0, MEM_TEST_VAL_1);
+	for (ctr = 0; ctr < guest_pages / 2; ctr += chunk)
+		test_memslot_do_unmap(data, ctr, chunk);
+
+	/* Likewise, but for the opposite host / guest areas */
+	host_perform_sync(sync);
+	test_memslot_map_unmap_check(data, guest_pages / 2, MEM_TEST_VAL_2);
+	for (ctr = guest_pages / 2; ctr < guest_pages; ctr += chunk)
+		test_memslot_do_unmap(data, ctr, chunk);
+}
+
+static void test_memslot_unmap_loop(struct vm_data *data,
+				    struct sync_area *sync)
+{
+	uint32_t host_page_size = getpagesize();
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t guest_chunk_pages = guest_page_size >= host_page_size ?
+					1 : host_page_size / guest_page_size;
+
+	test_memslot_unmap_loop_common(data, sync, guest_chunk_pages);
+}
+
+static void test_memslot_unmap_loop_chunked(struct vm_data *data,
+					    struct sync_area *sync)
+{
+	uint32_t guest_page_size = data->vm->page_size;
+	uint64_t guest_chunk_pages = MEM_TEST_UNMAP_CHUNK_SIZE / guest_page_size;
+
+	test_memslot_unmap_loop_common(data, sync, guest_chunk_pages);
+}
+
+static void test_memslot_rw_loop(struct vm_data *data, struct sync_area *sync)
+{
+	uint64_t gptr;
+	uint32_t guest_page_size = data->vm->page_size;
+
+	for (gptr = MEM_TEST_GPA + guest_page_size / 2;
+	     gptr < MEM_TEST_GPA + MEM_TEST_SIZE; gptr += guest_page_size)
+		*(uint64_t *)vm_gpa2hva(data, gptr, NULL) = MEM_TEST_VAL_2;
+
+	host_perform_sync(sync);
+
+	for (gptr = MEM_TEST_GPA;
+	     gptr < MEM_TEST_GPA + MEM_TEST_SIZE; gptr += guest_page_size) {
+		uint64_t *vptr = (typeof(vptr))vm_gpa2hva(data, gptr, NULL);
+		uint64_t val = *vptr;
+
+		TEST_ASSERT(val == MEM_TEST_VAL_1,
+			    "Guest written values should read back correctly (is %"PRIu64" @ %"PRIx64")",
+			    val, gptr);
+		*vptr = 0;
+	}
+
+	host_perform_sync(sync);
+}
+
+struct test_data {
+	const char *name;
+	uint64_t mem_size;
+	void (*guest_code)(void);
+	bool (*prepare)(struct vm_data *data, struct sync_area *sync,
+			uint64_t *maxslots);
+	void (*loop)(struct vm_data *data, struct sync_area *sync);
+};
+
+static bool test_execute(int nslots, uint64_t *maxslots,
+			 unsigned int maxtime,
+			 const struct test_data *tdata,
+			 uint64_t *nloops,
+			 struct timespec *slot_runtime,
+			 struct timespec *guest_runtime)
+{
+	uint64_t mem_size = tdata->mem_size ? : MEM_SIZE;
+	struct vm_data *data;
+	struct sync_area *sync;
+	struct timespec tstart;
+	bool ret = true;
+
+	data = alloc_vm();
+	if (!prepare_vm(data, nslots, maxslots, tdata->guest_code,
+			mem_size, slot_runtime)) {
+		ret = false;
+		goto exit_free;
+	}
+
+	sync = (typeof(sync))vm_gpa2hva(data, MEM_SYNC_GPA, NULL);
+	if (tdata->prepare &&
+	    !tdata->prepare(data, sync, maxslots)) {
+		ret = false;
+		goto exit_free;
+	}
+
+	launch_vm(data);
+
+	clock_gettime(CLOCK_MONOTONIC, &tstart);
+	let_guest_run(sync);
+
+	while (1) {
+		*guest_runtime = timespec_elapsed(tstart);
+		if (guest_runtime->tv_sec >= maxtime)
+			break;
+
+		tdata->loop(data, sync);
+
+		(*nloops)++;
+	}
+
+	make_guest_exit(sync);
+	wait_guest_exit(data);
+
+exit_free:
+	free_vm(data);
+
+	return ret;
+}
+
+static const struct test_data tests[] = {
+	{
+		.name = "map",
+		.mem_size = MEM_SIZE_MAP,
+		.guest_code = guest_code_test_memslot_map,
+		.loop = test_memslot_map_loop,
+	},
+	{
+		.name = "unmap",
+		.mem_size = MEM_TEST_UNMAP_SIZE + MEM_EXTRA_SIZE,
+		.guest_code = guest_code_test_memslot_unmap,
+		.loop = test_memslot_unmap_loop,
+	},
+	{
+		.name = "unmap chunked",
+		.mem_size = MEM_TEST_UNMAP_SIZE + MEM_EXTRA_SIZE,
+		.guest_code = guest_code_test_memslot_unmap,
+		.loop = test_memslot_unmap_loop_chunked,
+	},
+	{
+		.name = "move active area",
+		.guest_code = guest_code_test_memslot_move,
+		.prepare = test_memslot_move_prepare_active,
+		.loop = test_memslot_move_loop,
+	},
+	{
+		.name = "move inactive area",
+		.guest_code = guest_code_test_memslot_move,
+		.prepare = test_memslot_move_prepare_inactive,
+		.loop = test_memslot_move_loop,
+	},
+	{
+		.name = "RW",
+		.guest_code = guest_code_test_memslot_rw,
+		.loop = test_memslot_rw_loop
+	},
+};
+
+#define NTESTS ARRAY_SIZE(tests)
+
+struct test_args {
+	int tfirst;
+	int tlast;
+	int nslots;
+	int seconds;
+	int runs;
+};
+
+static void help(char *name, struct test_args *targs)
+{
+	int ctr;
+
+	pr_info("usage: %s [-h] [-v] [-d] [-s slots] [-f first_test] [-e last_test] [-l test_length] [-r run_count]\n",
+		name);
+	pr_info(" -h: print this help screen.\n");
+	pr_info(" -v: enable verbose mode (not for benchmarking).\n");
+	pr_info(" -d: enable extra debug checks.\n");
+	pr_info(" -q: Disable memslot zap quirk during memslot move.\n");
+	pr_info(" -s: specify memslot count cap (-1 means no cap; currently: %i)\n",
+		targs->nslots);
+	pr_info(" -f: specify the first test to run (currently: %i; max %zu)\n",
+		targs->tfirst, NTESTS - 1);
+	pr_info(" -e: specify the last test to run (currently: %i; max %zu)\n",
+		targs->tlast, NTESTS - 1);
+	pr_info(" -l: specify the test length in seconds (currently: %i)\n",
+		targs->seconds);
+	pr_info(" -r: specify the number of runs per test (currently: %i)\n",
+		targs->runs);
+
+	pr_info("\nAvailable tests:\n");
+	for (ctr = 0; ctr < NTESTS; ctr++)
+		pr_info("%d: %s\n", ctr, tests[ctr].name);
+}
+
+static bool check_memory_sizes(void)
+{
+	uint32_t host_page_size = getpagesize();
+	uint32_t guest_page_size = vm_guest_mode_params[VM_MODE_DEFAULT].page_size;
+
+	if (host_page_size > SZ_64K || guest_page_size > SZ_64K) {
+		pr_info("Unsupported page size on host (0x%x) or guest (0x%x)\n",
+			host_page_size, guest_page_size);
+		return false;
+	}
+
+	if (MEM_SIZE % guest_page_size ||
+	    MEM_TEST_SIZE % guest_page_size) {
+		pr_info("invalid MEM_SIZE or MEM_TEST_SIZE\n");
+		return false;
+	}
+
+	if (MEM_SIZE_MAP % guest_page_size		||
+	    MEM_TEST_MAP_SIZE % guest_page_size		||
+	    (MEM_TEST_MAP_SIZE / guest_page_size) <= 2	||
+	    (MEM_TEST_MAP_SIZE / guest_page_size) % 2) {
+		pr_info("invalid MEM_SIZE_MAP or MEM_TEST_MAP_SIZE\n");
+		return false;
+	}
+
+	if (MEM_TEST_UNMAP_SIZE > MEM_TEST_SIZE		||
+	    MEM_TEST_UNMAP_SIZE % guest_page_size	||
+	    (MEM_TEST_UNMAP_SIZE / guest_page_size) %
+	    (2 * MEM_TEST_UNMAP_CHUNK_SIZE / guest_page_size)) {
+		pr_info("invalid MEM_TEST_UNMAP_SIZE or MEM_TEST_UNMAP_CHUNK_SIZE\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool parse_args(int argc, char *argv[],
+		       struct test_args *targs)
+{
+	uint32_t max_mem_slots;
+	int opt;
+
+	while ((opt = getopt(argc, argv, "hvdqs:f:e:l:r:")) != -1) {
+		switch (opt) {
+		case 'h':
+		default:
+			help(argv[0], targs);
+			return false;
+		case 'v':
+			verbose = true;
+			break;
+		case 'd':
+			map_unmap_verify = true;
+			break;
+#ifdef __x86_64__
+		case 'q':
+			disable_slot_zap_quirk = true;
+			TEST_REQUIRE(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) &
+				     KVM_X86_QUIRK_SLOT_ZAP_ALL);
+			break;
+#endif
+		case 's':
+			targs->nslots = atoi_paranoid(optarg);
+			if (targs->nslots <= 1 && targs->nslots != -1) {
+				pr_info("Slot count cap must be larger than 1 or -1 for no cap\n");
+				return false;
+			}
+			break;
+		case 'f':
+			targs->tfirst = atoi_non_negative("First test", optarg);
+			break;
+		case 'e':
+			targs->tlast = atoi_non_negative("Last test", optarg);
+			if (targs->tlast >= NTESTS) {
+				pr_info("Last test to run has to be non-negative and less than %zu\n",
+					NTESTS);
+				return false;
+			}
+			break;
+		case 'l':
+			targs->seconds = atoi_non_negative("Test length", optarg);
+			break;
+		case 'r':
+			targs->runs = atoi_positive("Runs per test", optarg);
+			break;
+		}
+	}
+
+	if (optind < argc) {
+		help(argv[0], targs);
+		return false;
+	}
+
+	if (targs->tfirst > targs->tlast) {
+		pr_info("First test to run cannot be greater than the last test to run\n");
+		return false;
+	}
+
+	max_mem_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS);
+	if (max_mem_slots <= 1) {
+		pr_info("KVM_CAP_NR_MEMSLOTS should be greater than 1\n");
+		return false;
+	}
+
+	/* Memory slot 0 is reserved */
+	if (targs->nslots == -1)
+		targs->nslots = max_mem_slots - 1;
+	else
+		targs->nslots = min_t(int, targs->nslots, max_mem_slots) - 1;
+
+	pr_info_v("Allowed Number of memory slots: %"PRIu32"\n",
+		  targs->nslots + 1);
+
+	return true;
+}
+
+struct test_result {
+	struct timespec slot_runtime, guest_runtime, iter_runtime;
+	int64_t slottimens, runtimens;
+	uint64_t nloops;
+};
+
+static bool test_loop(const struct test_data *data,
+		      const struct test_args *targs,
+		      struct test_result *rbestslottime,
+		      struct test_result *rbestruntime)
+{
+	uint64_t maxslots;
+	struct test_result result = {};
+
+	if (!test_execute(targs->nslots, &maxslots, targs->seconds, data,
+			  &result.nloops,
+			  &result.slot_runtime, &result.guest_runtime)) {
+		if (maxslots)
+			pr_info("Memslot count too high for this test, decrease the cap (max is %"PRIu64")\n",
+				maxslots);
+		else
+			pr_info("Memslot count may be too high for this test, try adjusting the cap\n");
+
+		return false;
+	}
+
+	pr_info("Test took %ld.%.9lds for slot setup + %ld.%.9lds all iterations\n",
+		result.slot_runtime.tv_sec, result.slot_runtime.tv_nsec,
+		result.guest_runtime.tv_sec, result.guest_runtime.tv_nsec);
+	if (!result.nloops) {
+		pr_info("No full loops done - too short test time or system too loaded?\n");
+		return true;
+	}
+
+	result.iter_runtime = timespec_div(result.guest_runtime,
+					   result.nloops);
+	pr_info("Done %"PRIu64" iterations, avg %ld.%.9lds each\n",
+		result.nloops,
+		result.iter_runtime.tv_sec,
+		result.iter_runtime.tv_nsec);
+	result.slottimens = timespec_to_ns(result.slot_runtime);
+	result.runtimens = timespec_to_ns(result.iter_runtime);
+
+	/*
+	 * Only rank the slot setup time for tests using the whole test memory
+	 * area so they are comparable
+	 */
+	if (!data->mem_size &&
+	    (!rbestslottime->slottimens ||
+	     result.slottimens < rbestslottime->slottimens))
+		*rbestslottime = result;
+	if (!rbestruntime->runtimens ||
+	    result.runtimens < rbestruntime->runtimens)
+		*rbestruntime = result;
+
+	return true;
+}
+
+int main(int argc, char *argv[])
+{
+	struct test_args targs = {
+		.tfirst = 0,
+		.tlast = NTESTS - 1,
+		.nslots = -1,
+		.seconds = 5,
+		.runs = 1,
+	};
+	struct test_result rbestslottime = {};
+	int tctr;
+
+	if (!check_memory_sizes())
+		return -1;
+
+	if (!parse_args(argc, argv, &targs))
+		return -1;
+
+	for (tctr = targs.tfirst; tctr <= targs.tlast; tctr++) {
+		const struct test_data *data = &tests[tctr];
+		unsigned int runctr;
+		struct test_result rbestruntime = {};
+
+		if (tctr > targs.tfirst)
+			pr_info("\n");
+
+		pr_info("Testing %s performance with %i runs, %d seconds each\n",
+			data->name, targs.runs, targs.seconds);
+
+		for (runctr = 0; runctr < targs.runs; runctr++)
+			if (!test_loop(data, &targs,
+				       &rbestslottime, &rbestruntime))
+				break;
+
+		if (rbestruntime.runtimens)
+			pr_info("Best runtime result was %ld.%.9lds per iteration (with %"PRIu64" iterations)\n",
+				rbestruntime.iter_runtime.tv_sec,
+				rbestruntime.iter_runtime.tv_nsec,
+				rbestruntime.nloops);
+	}
+
+	if (rbestslottime.slottimens)
+		pr_info("Best slot setup time for the whole test area was %ld.%.9lds\n",
+			rbestslottime.slot_runtime.tv_sec,
+			rbestslottime.slot_runtime.tv_nsec);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/mmu_stress_test.c b/tools/testing/selftests/kvm/mmu_stress_test.c
new file mode 100644
index 000000000000..51c070556f3e
--- /dev/null
+++ b/tools/testing/selftests/kvm/mmu_stress_test.c
@@ -0,0 +1,425 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <semaphore.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/atomic.h>
+#include <linux/sizes.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "guest_modes.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+static bool mprotect_ro_done;
+static bool all_vcpus_hit_ro_fault;
+
+static void guest_code(uint64_t start_gpa, uint64_t end_gpa, uint64_t stride)
+{
+	uint64_t gpa;
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
+			vcpu_arch_put_guest(*((volatile uint64_t *)gpa), gpa);
+		GUEST_SYNC(i);
+	}
+
+	for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
+		*((volatile uint64_t *)gpa);
+	GUEST_SYNC(2);
+
+	/*
+	 * Write to the region while mprotect(PROT_READ) is underway.  Keep
+	 * looping until the memory is guaranteed to be read-only and a fault
+	 * has occurred, otherwise vCPUs may complete their writes and advance
+	 * to the next stage prematurely.
+	 *
+	 * For architectures that support skipping the faulting instruction,
+	 * generate the store via inline assembly to ensure the exact length
+	 * of the instruction is known and stable (vcpu_arch_put_guest() on
+	 * fixed-length architectures should work, but the cost of paranoia
+	 * is low in this case).  For x86, hand-code the exact opcode so that
+	 * there is no room for variability in the generated instruction.
+	 */
+	do {
+		for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
+#ifdef __x86_64__
+			asm volatile(".byte 0x48,0x89,0x00" :: "a"(gpa) : "memory"); /* mov %rax, (%rax) */
+#elif defined(__aarch64__)
+			asm volatile("str %0, [%0]" :: "r" (gpa) : "memory");
+#else
+			vcpu_arch_put_guest(*((volatile uint64_t *)gpa), gpa);
+#endif
+	} while (!READ_ONCE(mprotect_ro_done) || !READ_ONCE(all_vcpus_hit_ro_fault));
+
+	/*
+	 * Only architectures that write the entire range can explicitly sync,
+	 * as other architectures will be stuck on the write fault.
+	 */
+#if defined(__x86_64__) || defined(__aarch64__)
+	GUEST_SYNC(3);
+#endif
+
+	for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
+		vcpu_arch_put_guest(*((volatile uint64_t *)gpa), gpa);
+	GUEST_SYNC(4);
+
+	GUEST_ASSERT(0);
+}
+
+struct vcpu_info {
+	struct kvm_vcpu *vcpu;
+	uint64_t start_gpa;
+	uint64_t end_gpa;
+};
+
+static int nr_vcpus;
+static atomic_t rendezvous;
+static atomic_t nr_ro_faults;
+
+static void rendezvous_with_boss(void)
+{
+	int orig = atomic_read(&rendezvous);
+
+	if (orig > 0) {
+		atomic_dec_and_test(&rendezvous);
+		while (atomic_read(&rendezvous) > 0)
+			cpu_relax();
+	} else {
+		atomic_inc(&rendezvous);
+		while (atomic_read(&rendezvous) < 0)
+			cpu_relax();
+	}
+}
+
+static void assert_sync_stage(struct kvm_vcpu *vcpu, int stage)
+{
+	struct ucall uc;
+
+	TEST_ASSERT_EQ(get_ucall(vcpu, &uc), UCALL_SYNC);
+	TEST_ASSERT_EQ(uc.args[1], stage);
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
+{
+	vcpu_run(vcpu);
+	assert_sync_stage(vcpu, stage);
+}
+
+static void *vcpu_worker(void *data)
+{
+	struct kvm_sregs __maybe_unused sregs;
+	struct vcpu_info *info = data;
+	struct kvm_vcpu *vcpu = info->vcpu;
+	struct kvm_vm *vm = vcpu->vm;
+	int r;
+
+	vcpu_args_set(vcpu, 3, info->start_gpa, info->end_gpa, vm->page_size);
+
+	rendezvous_with_boss();
+
+	/* Stage 0, write all of guest memory. */
+	run_vcpu(vcpu, 0);
+	rendezvous_with_boss();
+#ifdef __x86_64__
+	vcpu_sregs_get(vcpu, &sregs);
+	/* Toggle CR0.WP to trigger a MMU context reset. */
+	sregs.cr0 ^= X86_CR0_WP;
+	vcpu_sregs_set(vcpu, &sregs);
+#endif
+	rendezvous_with_boss();
+
+	/* Stage 1, re-write all of guest memory. */
+	run_vcpu(vcpu, 1);
+	rendezvous_with_boss();
+
+	/* Stage 2, read all of guest memory, which is now read-only. */
+	run_vcpu(vcpu, 2);
+
+	/*
+	 * Stage 3, write guest memory and verify KVM returns -EFAULT for once
+	 * the mprotect(PROT_READ) lands.  Only architectures that support
+	 * validating *all* of guest memory sync for this stage, as vCPUs will
+	 * be stuck on the faulting instruction for other architectures.  Go to
+	 * stage 3 without a rendezvous
+	 */
+	r = _vcpu_run(vcpu);
+	TEST_ASSERT(r == -1 && errno == EFAULT,
+		    "Expected EFAULT on write to RO memory, got r = %d, errno = %d", r, errno);
+
+	atomic_inc(&nr_ro_faults);
+	if (atomic_read(&nr_ro_faults) == nr_vcpus) {
+		WRITE_ONCE(all_vcpus_hit_ro_fault, true);
+		sync_global_to_guest(vm, all_vcpus_hit_ro_fault);
+	}
+
+#if defined(__x86_64__) || defined(__aarch64__)
+	/*
+	 * Verify *all* writes from the guest hit EFAULT due to the VMA now
+	 * being read-only.  x86 and arm64 only at this time as skipping the
+	 * instruction that hits the EFAULT requires advancing the program
+	 * counter, which is arch specific and relies on inline assembly.
+	 */
+#ifdef __x86_64__
+	vcpu->run->kvm_valid_regs = KVM_SYNC_X86_REGS;
+#endif
+	for (;;) {
+		r = _vcpu_run(vcpu);
+		if (!r)
+			break;
+		TEST_ASSERT_EQ(errno, EFAULT);
+#if defined(__x86_64__)
+		WRITE_ONCE(vcpu->run->kvm_dirty_regs, KVM_SYNC_X86_REGS);
+		vcpu->run->s.regs.regs.rip += 3;
+#elif defined(__aarch64__)
+		vcpu_set_reg(vcpu, ARM64_CORE_REG(regs.pc),
+			     vcpu_get_reg(vcpu, ARM64_CORE_REG(regs.pc)) + 4);
+#endif
+
+	}
+	assert_sync_stage(vcpu, 3);
+#endif /* __x86_64__ || __aarch64__ */
+	rendezvous_with_boss();
+
+	/*
+	 * Stage 4.  Run to completion, waiting for mprotect(PROT_WRITE) to
+	 * make the memory writable again.
+	 */
+	do {
+		r = _vcpu_run(vcpu);
+	} while (r && errno == EFAULT);
+	TEST_ASSERT_EQ(r, 0);
+	assert_sync_stage(vcpu, 4);
+	rendezvous_with_boss();
+
+	return NULL;
+}
+
+static pthread_t *spawn_workers(struct kvm_vm *vm, struct kvm_vcpu **vcpus,
+				uint64_t start_gpa, uint64_t end_gpa)
+{
+	struct vcpu_info *info;
+	uint64_t gpa, nr_bytes;
+	pthread_t *threads;
+	int i;
+
+	threads = malloc(nr_vcpus * sizeof(*threads));
+	TEST_ASSERT(threads, "Failed to allocate vCPU threads");
+
+	info = malloc(nr_vcpus * sizeof(*info));
+	TEST_ASSERT(info, "Failed to allocate vCPU gpa ranges");
+
+	nr_bytes = ((end_gpa - start_gpa) / nr_vcpus) &
+			~((uint64_t)vm->page_size - 1);
+	TEST_ASSERT(nr_bytes, "C'mon, no way you have %d CPUs", nr_vcpus);
+
+	for (i = 0, gpa = start_gpa; i < nr_vcpus; i++, gpa += nr_bytes) {
+		info[i].vcpu = vcpus[i];
+		info[i].start_gpa = gpa;
+		info[i].end_gpa = gpa + nr_bytes;
+		pthread_create(&threads[i], NULL, vcpu_worker, &info[i]);
+	}
+	return threads;
+}
+
+static void rendezvous_with_vcpus(struct timespec *time, const char *name)
+{
+	int i, rendezvoused;
+
+	pr_info("Waiting for vCPUs to finish %s...\n", name);
+
+	rendezvoused = atomic_read(&rendezvous);
+	for (i = 0; abs(rendezvoused) != 1; i++) {
+		usleep(100);
+		if (!(i & 0x3f))
+			pr_info("\r%d vCPUs haven't rendezvoused...",
+				abs(rendezvoused) - 1);
+		rendezvoused = atomic_read(&rendezvous);
+	}
+
+	clock_gettime(CLOCK_MONOTONIC, time);
+
+	/* Release the vCPUs after getting the time of the previous action. */
+	pr_info("\rAll vCPUs finished %s, releasing...\n", name);
+	if (rendezvoused > 0)
+		atomic_set(&rendezvous, -nr_vcpus - 1);
+	else
+		atomic_set(&rendezvous, nr_vcpus + 1);
+}
+
+static void calc_default_nr_vcpus(void)
+{
+	cpu_set_t possible_mask;
+	int r;
+
+	r = sched_getaffinity(0, sizeof(possible_mask), &possible_mask);
+	TEST_ASSERT(!r, "sched_getaffinity failed, errno = %d (%s)",
+		    errno, strerror(errno));
+
+	nr_vcpus = CPU_COUNT(&possible_mask);
+	TEST_ASSERT(nr_vcpus > 0, "Uh, no CPUs?");
+	if (nr_vcpus >= 2)
+		nr_vcpus = nr_vcpus * 3/4;
+}
+
+int main(int argc, char *argv[])
+{
+	/*
+	 * Skip the first 4gb and slot0.  slot0 maps <1gb and is used to back
+	 * the guest's code, stack, and page tables.  Because selftests creates
+	 * an IRQCHIP, a.k.a. a local APIC, KVM creates an internal memslot
+	 * just below the 4gb boundary.  This test could create memory at
+	 * 1gb-3gb,but it's simpler to skip straight to 4gb.
+	 */
+	const uint64_t start_gpa = SZ_4G;
+	const int first_slot = 1;
+
+	struct timespec time_start, time_run1, time_reset, time_run2, time_ro, time_rw;
+	uint64_t max_gpa, gpa, slot_size, max_mem, i;
+	int max_slots, slot, opt, fd;
+	bool hugepages = false;
+	struct kvm_vcpu **vcpus;
+	pthread_t *threads;
+	struct kvm_vm *vm;
+	void *mem;
+
+	/*
+	 * Default to 2gb so that maxing out systems with MAXPHADDR=46, which
+	 * are quite common for x86, requires changing only max_mem (KVM allows
+	 * 32k memslots, 32k * 2gb == ~64tb of guest memory).
+	 */
+	slot_size = SZ_2G;
+
+	max_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS);
+	TEST_ASSERT(max_slots > first_slot, "KVM is broken");
+
+	/* All KVM MMUs should be able to survive a 128gb guest. */
+	max_mem = 128ull * SZ_1G;
+
+	calc_default_nr_vcpus();
+
+	while ((opt = getopt(argc, argv, "c:h:m:s:H")) != -1) {
+		switch (opt) {
+		case 'c':
+			nr_vcpus = atoi_positive("Number of vCPUs", optarg);
+			break;
+		case 'm':
+			max_mem = 1ull * atoi_positive("Memory size", optarg) * SZ_1G;
+			break;
+		case 's':
+			slot_size = 1ull * atoi_positive("Slot size", optarg) * SZ_1G;
+			break;
+		case 'H':
+			hugepages = true;
+			break;
+		case 'h':
+		default:
+			printf("usage: %s [-c nr_vcpus] [-m max_mem_in_gb] [-s slot_size_in_gb] [-H]\n", argv[0]);
+			exit(1);
+		}
+	}
+
+	vcpus = malloc(nr_vcpus * sizeof(*vcpus));
+	TEST_ASSERT(vcpus, "Failed to allocate vCPU array");
+
+	vm = __vm_create_with_vcpus(VM_SHAPE_DEFAULT, nr_vcpus,
+#ifdef __x86_64__
+				    max_mem / SZ_1G,
+#else
+				    max_mem / vm_guest_mode_params[VM_MODE_DEFAULT].page_size,
+#endif
+				    guest_code, vcpus);
+
+	max_gpa = vm->max_gfn << vm->page_shift;
+	TEST_ASSERT(max_gpa > (4 * slot_size), "MAXPHYADDR <4gb ");
+
+	fd = kvm_memfd_alloc(slot_size, hugepages);
+	mem = kvm_mmap(slot_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd);
+
+	TEST_ASSERT(!madvise(mem, slot_size, MADV_NOHUGEPAGE), "madvise() failed");
+
+	/* Pre-fault the memory to avoid taking mmap_sem on guest page faults. */
+	for (i = 0; i < slot_size; i += vm->page_size)
+		((uint8_t *)mem)[i] = 0xaa;
+
+	gpa = 0;
+	for (slot = first_slot; slot < max_slots; slot++) {
+		gpa = start_gpa + ((slot - first_slot) * slot_size);
+		if (gpa + slot_size > max_gpa)
+			break;
+
+		if ((gpa - start_gpa) >= max_mem)
+			break;
+
+		vm_set_user_memory_region(vm, slot, 0, gpa, slot_size, mem);
+
+#ifdef __x86_64__
+		/* Identity map memory in the guest using 1gb pages. */
+		virt_map_level(vm, gpa, gpa, slot_size, PG_LEVEL_1G);
+#else
+		virt_map(vm, gpa, gpa, slot_size >> vm->page_shift);
+#endif
+	}
+
+	atomic_set(&rendezvous, nr_vcpus + 1);
+	threads = spawn_workers(vm, vcpus, start_gpa, gpa);
+
+	free(vcpus);
+	vcpus = NULL;
+
+	pr_info("Running with %lugb of guest memory and %u vCPUs\n",
+		(gpa - start_gpa) / SZ_1G, nr_vcpus);
+
+	rendezvous_with_vcpus(&time_start, "spawning");
+	rendezvous_with_vcpus(&time_run1, "run 1");
+	rendezvous_with_vcpus(&time_reset, "reset");
+	rendezvous_with_vcpus(&time_run2, "run 2");
+
+	mprotect(mem, slot_size, PROT_READ);
+	mprotect_ro_done = true;
+	sync_global_to_guest(vm, mprotect_ro_done);
+
+	rendezvous_with_vcpus(&time_ro, "mprotect RO");
+	mprotect(mem, slot_size, PROT_READ | PROT_WRITE);
+	rendezvous_with_vcpus(&time_rw, "mprotect RW");
+
+	time_rw    = timespec_sub(time_rw,     time_ro);
+	time_ro    = timespec_sub(time_ro,     time_run2);
+	time_run2  = timespec_sub(time_run2,   time_reset);
+	time_reset = timespec_sub(time_reset,  time_run1);
+	time_run1  = timespec_sub(time_run1,   time_start);
+
+	pr_info("run1 = %ld.%.9lds, reset = %ld.%.9lds, run2 = %ld.%.9lds, "
+		"ro = %ld.%.9lds, rw = %ld.%.9lds\n",
+		time_run1.tv_sec, time_run1.tv_nsec,
+		time_reset.tv_sec, time_reset.tv_nsec,
+		time_run2.tv_sec, time_run2.tv_nsec,
+		time_ro.tv_sec, time_ro.tv_nsec,
+		time_rw.tv_sec, time_rw.tv_nsec);
+
+	/*
+	 * Delete even numbered slots (arbitrary) and unmap the first half of
+	 * the backing (also arbitrary) to verify KVM correctly drops all
+	 * references to the removed regions.
+	 */
+	for (slot = (slot - 1) & ~1ull; slot >= first_slot; slot -= 2)
+		vm_set_user_memory_region(vm, slot, 0, 0, 0, NULL);
+
+	kvm_munmap(mem, slot_size / 2);
+
+	/* Sanity check that the vCPUs actually ran. */
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_join(threads[i], NULL);
+
+	/*
+	 * Deliberately exit without deleting the remaining memslots or closing
+	 * kvm_fd to test cleanup via mmu_notifier.release.
+	 */
+}
diff --git a/tools/testing/selftests/kvm/pre_fault_memory_test.c b/tools/testing/selftests/kvm/pre_fault_memory_test.c
new file mode 100644
index 000000000000..93e603d91311
--- /dev/null
+++ b/tools/testing/selftests/kvm/pre_fault_memory_test.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024, Intel, Inc
+ *
+ * Author:
+ * Isaku Yamahata <isaku.yamahata at gmail.com>
+ */
+#include <linux/sizes.h>
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+#include <pthread.h>
+
+/* Arbitrarily chosen values */
+#define TEST_SIZE		(SZ_2M + PAGE_SIZE)
+#define TEST_NPAGES		(TEST_SIZE / PAGE_SIZE)
+#define TEST_SLOT		10
+
+static void guest_code(uint64_t base_gva)
+{
+	volatile uint64_t val __used;
+	int i;
+
+	for (i = 0; i < TEST_NPAGES; i++) {
+		uint64_t *src = (uint64_t *)(base_gva + i * PAGE_SIZE);
+
+		val = *src;
+	}
+
+	GUEST_DONE();
+}
+
+struct slot_worker_data {
+	struct kvm_vm *vm;
+	u64 gpa;
+	uint32_t flags;
+	bool worker_ready;
+	bool prefault_ready;
+	bool recreate_slot;
+};
+
+static void *delete_slot_worker(void *__data)
+{
+	struct slot_worker_data *data = __data;
+	struct kvm_vm *vm = data->vm;
+
+	WRITE_ONCE(data->worker_ready, true);
+
+	while (!READ_ONCE(data->prefault_ready))
+		cpu_relax();
+
+	vm_mem_region_delete(vm, TEST_SLOT);
+
+	while (!READ_ONCE(data->recreate_slot))
+		cpu_relax();
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, data->gpa,
+				    TEST_SLOT, TEST_NPAGES, data->flags);
+
+	return NULL;
+}
+
+static void pre_fault_memory(struct kvm_vcpu *vcpu, u64 base_gpa, u64 offset,
+			     u64 size, u64 expected_left, bool private)
+{
+	struct kvm_pre_fault_memory range = {
+		.gpa = base_gpa + offset,
+		.size = size,
+		.flags = 0,
+	};
+	struct slot_worker_data data = {
+		.vm = vcpu->vm,
+		.gpa = base_gpa,
+		.flags = private ? KVM_MEM_GUEST_MEMFD : 0,
+	};
+	bool slot_recreated = false;
+	pthread_t slot_worker;
+	int ret, save_errno;
+	u64 prev;
+
+	/*
+	 * Concurrently delete (and recreate) the slot to test KVM's handling
+	 * of a racing memslot deletion with prefaulting.
+	 */
+	pthread_create(&slot_worker, NULL, delete_slot_worker, &data);
+
+	while (!READ_ONCE(data.worker_ready))
+		cpu_relax();
+
+	WRITE_ONCE(data.prefault_ready, true);
+
+	for (;;) {
+		prev = range.size;
+		ret = __vcpu_ioctl(vcpu, KVM_PRE_FAULT_MEMORY, &range);
+		save_errno = errno;
+		TEST_ASSERT((range.size < prev) ^ (ret < 0),
+			    "%sexpecting range.size to change on %s",
+			    ret < 0 ? "not " : "",
+			    ret < 0 ? "failure" : "success");
+
+		/*
+		 * Immediately retry prefaulting if KVM was interrupted by an
+		 * unrelated signal/event.
+		 */
+		if (ret < 0 && save_errno == EINTR)
+			continue;
+
+		/*
+		 * Tell the worker to recreate the slot in order to complete
+		 * prefaulting (if prefault didn't already succeed before the
+		 * slot was deleted) and/or to prepare for the next testcase.
+		 * Wait for the worker to exit so that the next invocation of
+		 * prefaulting is guaranteed to complete (assuming no KVM bugs).
+		 */
+		if (!slot_recreated) {
+			WRITE_ONCE(data.recreate_slot, true);
+			pthread_join(slot_worker, NULL);
+			slot_recreated = true;
+
+			/*
+			 * Retry prefaulting to get a stable result, i.e. to
+			 * avoid seeing random EAGAIN failures.  Don't retry if
+			 * prefaulting already succeeded, as KVM disallows
+			 * prefaulting with size=0, i.e. blindly retrying would
+			 * result in test failures due to EINVAL.  KVM should
+			 * always return success if all bytes are prefaulted,
+			 * i.e. there is no need to guard against EAGAIN being
+			 * returned.
+			 */
+			if (range.size)
+				continue;
+		}
+
+		/*
+		 * All done if there are no remaining bytes to prefault, or if
+		 * prefaulting failed (EINTR was handled above, and EAGAIN due
+		 * to prefaulting a memslot that's being actively deleted should
+		 * be impossible since the memslot has already been recreated).
+		 */
+		if (!range.size || ret < 0)
+			break;
+	}
+
+	TEST_ASSERT(range.size == expected_left,
+		    "Completed with %llu bytes left, expected %lu",
+		    range.size, expected_left);
+
+	/*
+	 * Assert success if prefaulting the entire range should succeed, i.e.
+	 * complete with no bytes remaining.  Otherwise prefaulting should have
+	 * failed due to ENOENT (due to RET_PF_EMULATE for emulated MMIO when
+	 * no memslot exists).
+	 */
+	if (!expected_left)
+		TEST_ASSERT_VM_VCPU_IOCTL(!ret, KVM_PRE_FAULT_MEMORY, ret, vcpu->vm);
+	else
+		TEST_ASSERT_VM_VCPU_IOCTL(ret && save_errno == ENOENT,
+					  KVM_PRE_FAULT_MEMORY, ret, vcpu->vm);
+}
+
+static void __test_pre_fault_memory(unsigned long vm_type, bool private)
+{
+	uint64_t gpa, gva, alignment, guest_page_size;
+	const struct vm_shape shape = {
+		.mode = VM_MODE_DEFAULT,
+		.type = vm_type,
+	};
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = vm_create_shape_with_one_vcpu(shape, &vcpu, guest_code);
+
+	alignment = guest_page_size = vm_guest_mode_params[VM_MODE_DEFAULT].page_size;
+	gpa = (vm->max_gfn - TEST_NPAGES) * guest_page_size;
+#ifdef __s390x__
+	alignment = max(0x100000UL, guest_page_size);
+#else
+	alignment = SZ_2M;
+#endif
+	gpa = align_down(gpa, alignment);
+	gva = gpa & ((1ULL << (vm->va_bits - 1)) - 1);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, gpa, TEST_SLOT,
+				    TEST_NPAGES, private ? KVM_MEM_GUEST_MEMFD : 0);
+	virt_map(vm, gva, gpa, TEST_NPAGES);
+
+	if (private)
+		vm_mem_set_private(vm, gpa, TEST_SIZE);
+
+	pre_fault_memory(vcpu, gpa, 0, SZ_2M, 0, private);
+	pre_fault_memory(vcpu, gpa, SZ_2M, PAGE_SIZE * 2, PAGE_SIZE, private);
+	pre_fault_memory(vcpu, gpa, TEST_SIZE, PAGE_SIZE, PAGE_SIZE, private);
+
+	vcpu_args_set(vcpu, 1, gva);
+	vcpu_run(vcpu);
+
+	run = vcpu->run;
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
+		    "Wanted KVM_EXIT_IO, got exit reason: %u (%s)",
+		    run->exit_reason, exit_reason_str(run->exit_reason));
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+		break;
+	}
+
+	kvm_vm_free(vm);
+}
+
+static void test_pre_fault_memory(unsigned long vm_type, bool private)
+{
+	if (vm_type && !(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(vm_type))) {
+		pr_info("Skipping tests for vm_type 0x%lx\n", vm_type);
+		return;
+	}
+
+	__test_pre_fault_memory(vm_type, private);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_PRE_FAULT_MEMORY));
+
+	test_pre_fault_memory(0, false);
+#ifdef __x86_64__
+	test_pre_fault_memory(KVM_X86_SW_PROTECTED_VM, false);
+	test_pre_fault_memory(KVM_X86_SW_PROTECTED_VM, true);
+#endif
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/riscv/arch_timer.c b/tools/testing/selftests/kvm/riscv/arch_timer.c
new file mode 100644
index 000000000000..f962fefc48fa
--- /dev/null
+++ b/tools/testing/selftests/kvm/riscv/arch_timer.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * arch_timer.c - Tests the riscv64 sstc timer IRQ functionality
+ *
+ * The test validates the sstc timer IRQs using vstimecmp registers.
+ * It's ported from the aarch64 arch_timer test.
+ *
+ * Copyright (c) 2024, Intel Corporation.
+ */
+#include "arch_timer.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "timer_test.h"
+#include "ucall_common.h"
+
+static int timer_irq = IRQ_S_TIMER;
+
+static void guest_irq_handler(struct pt_regs *regs)
+{
+	uint64_t xcnt, xcnt_diff_us, cmp;
+	unsigned int intid = regs->cause & ~CAUSE_IRQ_FLAG;
+	uint32_t cpu = guest_get_vcpuid();
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	timer_irq_disable();
+
+	xcnt = timer_get_cycles();
+	cmp = timer_get_cmp();
+	xcnt_diff_us = cycles_to_usec(xcnt - shared_data->xcnt);
+
+	/* Make sure we are dealing with the correct timer IRQ */
+	GUEST_ASSERT_EQ(intid, timer_irq);
+
+	__GUEST_ASSERT(xcnt >= cmp,
+			"xcnt = 0x%"PRIx64", cmp = 0x%"PRIx64", xcnt_diff_us = 0x%" PRIx64,
+			xcnt, cmp, xcnt_diff_us);
+
+	WRITE_ONCE(shared_data->nr_iter, shared_data->nr_iter + 1);
+}
+
+static void guest_run(struct test_vcpu_shared_data *shared_data)
+{
+	uint32_t irq_iter, config_iter;
+
+	shared_data->nr_iter = 0;
+	shared_data->guest_stage = 0;
+
+	for (config_iter = 0; config_iter < test_args.nr_iter; config_iter++) {
+		/* Setup the next interrupt */
+		timer_set_next_cmp_ms(test_args.timer_period_ms);
+		shared_data->xcnt = timer_get_cycles();
+		timer_irq_enable();
+
+		/* Setup a timeout for the interrupt to arrive */
+		udelay(msecs_to_usecs(test_args.timer_period_ms) +
+			test_args.timer_err_margin_us);
+
+		irq_iter = READ_ONCE(shared_data->nr_iter);
+		__GUEST_ASSERT(config_iter + 1 == irq_iter,
+				"config_iter + 1 = 0x%x, irq_iter = 0x%x.\n"
+				"  Guest timer interrupt was not triggered within the specified\n"
+				"  interval, try to increase the error margin by [-e] option.\n",
+				config_iter + 1, irq_iter);
+	}
+}
+
+static void guest_code(void)
+{
+	uint32_t cpu = guest_get_vcpuid();
+	struct test_vcpu_shared_data *shared_data = &vcpu_shared_data[cpu];
+
+	timer_irq_disable();
+	local_irq_enable();
+
+	guest_run(shared_data);
+
+	GUEST_DONE();
+}
+
+struct kvm_vm *test_vm_create(void)
+{
+	struct kvm_vm *vm;
+	int nr_vcpus = test_args.nr_vcpus;
+
+	vm = vm_create_with_vcpus(nr_vcpus, guest_code, vcpus);
+	__TEST_REQUIRE(__vcpu_has_isa_ext(vcpus[0], KVM_RISCV_ISA_EXT_SSTC),
+				   "SSTC not available, skipping test\n");
+
+	vm_init_vector_tables(vm);
+	vm_install_interrupt_handler(vm, guest_irq_handler);
+
+	for (int i = 0; i < nr_vcpus; i++)
+		vcpu_init_vector_tables(vcpus[i]);
+
+	/* Initialize guest timer frequency. */
+	timer_freq = vcpu_get_reg(vcpus[0], RISCV_TIMER_REG(frequency));
+	sync_global_to_guest(vm, timer_freq);
+	pr_debug("timer_freq: %lu\n", timer_freq);
+
+	/* Make all the test's cmdline args visible to the guest */
+	sync_global_to_guest(vm, test_args);
+
+	return vm;
+}
+
+void test_vm_cleanup(struct kvm_vm *vm)
+{
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/riscv/ebreak_test.c b/tools/testing/selftests/kvm/riscv/ebreak_test.c
new file mode 100644
index 000000000000..739d17befb5a
--- /dev/null
+++ b/tools/testing/selftests/kvm/riscv/ebreak_test.c
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RISC-V KVM ebreak test.
+ *
+ * Copyright 2024 Beijing ESWIN Computing Technology Co., Ltd.
+ *
+ */
+#include "kvm_util.h"
+#include "ucall_common.h"
+
+#define LABEL_ADDRESS(v) ((uint64_t)&(v))
+
+extern unsigned char sw_bp_1, sw_bp_2;
+static uint64_t sw_bp_addr;
+
+static void guest_code(void)
+{
+	asm volatile(
+		".option push\n"
+		".option norvc\n"
+		"sw_bp_1: ebreak\n"
+		"sw_bp_2: ebreak\n"
+		".option pop\n"
+	);
+	GUEST_ASSERT_EQ(READ_ONCE(sw_bp_addr), LABEL_ADDRESS(sw_bp_2));
+
+	GUEST_DONE();
+}
+
+static void guest_breakpoint_handler(struct pt_regs *regs)
+{
+	WRITE_ONCE(sw_bp_addr, regs->epc);
+	regs->epc += 4;
+}
+
+int main(void)
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	uint64_t pc;
+	struct kvm_guest_debug debug = {
+		.control = KVM_GUESTDBG_ENABLE,
+	};
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SET_GUEST_DEBUG));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vm_init_vector_tables(vm);
+	vcpu_init_vector_tables(vcpu);
+	vm_install_exception_handler(vm, EXC_BREAKPOINT,
+					guest_breakpoint_handler);
+
+	/*
+	 * Enable the guest debug.
+	 * ebreak should exit to the VMM with KVM_EXIT_DEBUG reason.
+	 */
+	vcpu_guest_debug_set(vcpu, &debug);
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_DEBUG);
+
+	pc = vcpu_get_reg(vcpu, RISCV_CORE_REG(regs.pc));
+	TEST_ASSERT_EQ(pc, LABEL_ADDRESS(sw_bp_1));
+
+	/* skip sw_bp_1 */
+	vcpu_set_reg(vcpu, RISCV_CORE_REG(regs.pc), pc + 4);
+
+	/*
+	 * Disable all debug controls.
+	 * Guest should handle the ebreak without exiting to the VMM.
+	 */
+	memset(&debug, 0, sizeof(debug));
+	vcpu_guest_debug_set(vcpu, &debug);
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/riscv/get-reg-list.c b/tools/testing/selftests/kvm/riscv/get-reg-list.c
new file mode 100644
index 000000000000..cb54a56990a0
--- /dev/null
+++ b/tools/testing/selftests/kvm/riscv/get-reg-list.c
@@ -0,0 +1,1302 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Check for KVM_GET_REG_LIST regressions.
+ *
+ * Copyright (c) 2023 Intel Corporation
+ *
+ */
+#include <stdio.h>
+#include "kvm_util.h"
+#include "test_util.h"
+#include "processor.h"
+
+#define REG_MASK (KVM_REG_ARCH_MASK | KVM_REG_SIZE_MASK)
+
+enum {
+	VCPU_FEATURE_ISA_EXT = 0,
+	VCPU_FEATURE_SBI_EXT,
+};
+
+enum {
+	KVM_RISC_V_REG_OFFSET_VSTART = 0,
+	KVM_RISC_V_REG_OFFSET_VL,
+	KVM_RISC_V_REG_OFFSET_VTYPE,
+	KVM_RISC_V_REG_OFFSET_VCSR,
+	KVM_RISC_V_REG_OFFSET_VLENB,
+	KVM_RISC_V_REG_OFFSET_MAX,
+};
+
+static bool isa_ext_cant_disable[KVM_RISCV_ISA_EXT_MAX];
+
+bool filter_reg(__u64 reg)
+{
+	switch (reg & ~REG_MASK) {
+	/*
+	 * Same set of ISA_EXT registers are not present on all host because
+	 * ISA_EXT registers are visible to the KVM user space based on the
+	 * ISA extensions available on the host. Also, disabling an ISA
+	 * extension using corresponding ISA_EXT register does not affect
+	 * the visibility of the ISA_EXT register itself.
+	 *
+	 * Based on above, we should filter-out all ISA_EXT registers.
+	 *
+	 * Note: The below list is alphabetically sorted.
+	 */
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_A:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_C:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_D:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_F:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_H:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_I:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_M:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_V:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SMNPM:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SMSTATEEN:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SSAIA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SSCOFPMF:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SSNPM:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SSTC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVADE:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVADU:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVINVAL:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVNAPOT:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVPBMT:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SVVPTC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZAAMO:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZABHA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZACAS:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZALRSC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZAWRS:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBKB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBKC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBKX:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZBS:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCD:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCF:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZCMOP:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFBFMIN:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFH:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZFHMIN:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOM:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOP:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOZ:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICCRSE:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICNTR:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICOND:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICSR:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZIFENCEI:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZIHINTNTL:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZIHINTPAUSE:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZIHPM:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZIMOP:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKND:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKNE:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKNH:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKR:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKSED:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKSH:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZKT:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZTSO:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVBB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVBC:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFBFMIN:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFBFWMA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFH:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVFHMIN:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKG:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKNED:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKNHA:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKNHB:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKSED:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKSH:
+	case KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZVKT:
+	/*
+	 * Like ISA_EXT registers, SBI_EXT registers are only visible when the
+	 * host supports them and disabling them does not affect the visibility
+	 * of the SBI_EXT register itself.
+	 */
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_V01:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_TIME:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_IPI:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_RFENCE:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_SRST:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_HSM:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_PMU:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_DBCN:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_SUSP:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_STA:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_FWFT:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_MPXY:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_EXPERIMENTAL:
+	case KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_VENDOR:
+		return true;
+	/* AIA registers are always available when Ssaia can't be disabled */
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(siselect):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio1):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio2):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(sieh):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(siph):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio1h):
+	case KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio2h):
+		return isa_ext_cant_disable[KVM_RISCV_ISA_EXT_SSAIA];
+	default:
+		break;
+	}
+
+	return false;
+}
+
+bool check_reject_set(int err)
+{
+	return err == EINVAL;
+}
+
+static int override_vector_reg_size(struct kvm_vcpu *vcpu, struct vcpu_reg_sublist *s,
+				    uint64_t feature)
+{
+	unsigned long vlenb_reg = 0;
+	int rc;
+	u64 reg, size;
+
+	/* Enable V extension so that we can get the vlenb register */
+	rc = __vcpu_set_reg(vcpu, feature, 1);
+	if (rc)
+		return rc;
+
+	vlenb_reg = vcpu_get_reg(vcpu, s->regs[KVM_RISC_V_REG_OFFSET_VLENB]);
+	if (!vlenb_reg) {
+		TEST_FAIL("Can't compute vector register size from zero vlenb\n");
+		return -EPERM;
+	}
+
+	size = __builtin_ctzl(vlenb_reg);
+	size <<= KVM_REG_SIZE_SHIFT;
+
+	for (int i = 0; i < 32; i++) {
+		reg = KVM_REG_RISCV | KVM_REG_RISCV_VECTOR | size | KVM_REG_RISCV_VECTOR_REG(i);
+		s->regs[KVM_RISC_V_REG_OFFSET_MAX + i] = reg;
+	}
+
+	/* We should assert if disabling failed here while enabling succeeded before */
+	vcpu_set_reg(vcpu, feature, 0);
+
+	return 0;
+}
+
+void finalize_vcpu(struct kvm_vcpu *vcpu, struct vcpu_reg_list *c)
+{
+	unsigned long isa_ext_state[KVM_RISCV_ISA_EXT_MAX] = { 0 };
+	struct vcpu_reg_sublist *s;
+	uint64_t feature;
+	int rc;
+
+	for (int i = 0; i < KVM_RISCV_ISA_EXT_MAX; i++)
+		__vcpu_get_reg(vcpu, RISCV_ISA_EXT_REG(i), &isa_ext_state[i]);
+
+	/*
+	 * Disable all extensions which were enabled by default
+	 * if they were available in the risc-v host.
+	 */
+	for (int i = 0; i < KVM_RISCV_ISA_EXT_MAX; i++) {
+		rc = __vcpu_set_reg(vcpu, RISCV_ISA_EXT_REG(i), 0);
+		if (rc && isa_ext_state[i])
+			isa_ext_cant_disable[i] = true;
+	}
+
+	for (int i = 0; i < KVM_RISCV_SBI_EXT_MAX; i++) {
+		rc = __vcpu_set_reg(vcpu, RISCV_SBI_EXT_REG(i), 0);
+		TEST_ASSERT(!rc || (rc == -1 && errno == ENOENT), "Unexpected error");
+	}
+
+	for_each_sublist(c, s) {
+		if (!s->feature)
+			continue;
+
+		if (s->feature == KVM_RISCV_ISA_EXT_V) {
+			feature = RISCV_ISA_EXT_REG(s->feature);
+			rc = override_vector_reg_size(vcpu, s, feature);
+			if (rc)
+				goto skip;
+		}
+
+		switch (s->feature_type) {
+		case VCPU_FEATURE_ISA_EXT:
+			feature = RISCV_ISA_EXT_REG(s->feature);
+			break;
+		case VCPU_FEATURE_SBI_EXT:
+			feature = RISCV_SBI_EXT_REG(s->feature);
+			break;
+		default:
+			TEST_FAIL("Unknown feature type");
+		}
+
+		/* Try to enable the desired extension */
+		__vcpu_set_reg(vcpu, feature, 1);
+
+skip:
+		/* Double check whether the desired extension was enabled */
+		__TEST_REQUIRE(__vcpu_has_ext(vcpu, feature),
+			       "%s not available, skipping tests", s->name);
+	}
+}
+
+static const char *config_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct kvm_riscv_config */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_CONFIG);
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_CONFIG);
+
+	switch (reg_off) {
+	case KVM_REG_RISCV_CONFIG_REG(isa):
+		return "KVM_REG_RISCV_CONFIG_REG(isa)";
+	case KVM_REG_RISCV_CONFIG_REG(zicbom_block_size):
+		return "KVM_REG_RISCV_CONFIG_REG(zicbom_block_size)";
+	case KVM_REG_RISCV_CONFIG_REG(zicboz_block_size):
+		return "KVM_REG_RISCV_CONFIG_REG(zicboz_block_size)";
+	case KVM_REG_RISCV_CONFIG_REG(zicbop_block_size):
+		return "KVM_REG_RISCV_CONFIG_REG(zicbop_block_size)";
+	case KVM_REG_RISCV_CONFIG_REG(mvendorid):
+		return "KVM_REG_RISCV_CONFIG_REG(mvendorid)";
+	case KVM_REG_RISCV_CONFIG_REG(marchid):
+		return "KVM_REG_RISCV_CONFIG_REG(marchid)";
+	case KVM_REG_RISCV_CONFIG_REG(mimpid):
+		return "KVM_REG_RISCV_CONFIG_REG(mimpid)";
+	case KVM_REG_RISCV_CONFIG_REG(satp_mode):
+		return "KVM_REG_RISCV_CONFIG_REG(satp_mode)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+static const char *core_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct kvm_riscv_core */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_CORE);
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_CORE);
+
+	switch (reg_off) {
+	case KVM_REG_RISCV_CORE_REG(regs.pc):
+		return "KVM_REG_RISCV_CORE_REG(regs.pc)";
+	case KVM_REG_RISCV_CORE_REG(regs.ra):
+		return "KVM_REG_RISCV_CORE_REG(regs.ra)";
+	case KVM_REG_RISCV_CORE_REG(regs.sp):
+		return "KVM_REG_RISCV_CORE_REG(regs.sp)";
+	case KVM_REG_RISCV_CORE_REG(regs.gp):
+		return "KVM_REG_RISCV_CORE_REG(regs.gp)";
+	case KVM_REG_RISCV_CORE_REG(regs.tp):
+		return "KVM_REG_RISCV_CORE_REG(regs.tp)";
+	case KVM_REG_RISCV_CORE_REG(regs.t0) ... KVM_REG_RISCV_CORE_REG(regs.t2):
+		return strdup_printf("KVM_REG_RISCV_CORE_REG(regs.t%lld)",
+			   reg_off - KVM_REG_RISCV_CORE_REG(regs.t0));
+	case KVM_REG_RISCV_CORE_REG(regs.s0) ... KVM_REG_RISCV_CORE_REG(regs.s1):
+		return strdup_printf("KVM_REG_RISCV_CORE_REG(regs.s%lld)",
+			   reg_off - KVM_REG_RISCV_CORE_REG(regs.s0));
+	case KVM_REG_RISCV_CORE_REG(regs.a0) ... KVM_REG_RISCV_CORE_REG(regs.a7):
+		return strdup_printf("KVM_REG_RISCV_CORE_REG(regs.a%lld)",
+			   reg_off - KVM_REG_RISCV_CORE_REG(regs.a0));
+	case KVM_REG_RISCV_CORE_REG(regs.s2) ... KVM_REG_RISCV_CORE_REG(regs.s11):
+		return strdup_printf("KVM_REG_RISCV_CORE_REG(regs.s%lld)",
+			   reg_off - KVM_REG_RISCV_CORE_REG(regs.s2) + 2);
+	case KVM_REG_RISCV_CORE_REG(regs.t3) ... KVM_REG_RISCV_CORE_REG(regs.t6):
+		return strdup_printf("KVM_REG_RISCV_CORE_REG(regs.t%lld)",
+			   reg_off - KVM_REG_RISCV_CORE_REG(regs.t3) + 3);
+	case KVM_REG_RISCV_CORE_REG(mode):
+		return "KVM_REG_RISCV_CORE_REG(mode)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+#define RISCV_CSR_GENERAL(csr) \
+	"KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(" #csr ")"
+#define RISCV_CSR_AIA(csr) \
+	"KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_REG(" #csr ")"
+#define RISCV_CSR_SMSTATEEN(csr) \
+	"KVM_REG_RISCV_CSR_SMSTATEEN | KVM_REG_RISCV_CSR_REG(" #csr ")"
+
+static const char *general_csr_id_to_str(__u64 reg_off)
+{
+	/* reg_off is the offset into struct kvm_riscv_csr */
+	switch (reg_off) {
+	case KVM_REG_RISCV_CSR_REG(sstatus):
+		return RISCV_CSR_GENERAL(sstatus);
+	case KVM_REG_RISCV_CSR_REG(sie):
+		return RISCV_CSR_GENERAL(sie);
+	case KVM_REG_RISCV_CSR_REG(stvec):
+		return RISCV_CSR_GENERAL(stvec);
+	case KVM_REG_RISCV_CSR_REG(sscratch):
+		return RISCV_CSR_GENERAL(sscratch);
+	case KVM_REG_RISCV_CSR_REG(sepc):
+		return RISCV_CSR_GENERAL(sepc);
+	case KVM_REG_RISCV_CSR_REG(scause):
+		return RISCV_CSR_GENERAL(scause);
+	case KVM_REG_RISCV_CSR_REG(stval):
+		return RISCV_CSR_GENERAL(stval);
+	case KVM_REG_RISCV_CSR_REG(sip):
+		return RISCV_CSR_GENERAL(sip);
+	case KVM_REG_RISCV_CSR_REG(satp):
+		return RISCV_CSR_GENERAL(satp);
+	case KVM_REG_RISCV_CSR_REG(scounteren):
+		return RISCV_CSR_GENERAL(scounteren);
+	case KVM_REG_RISCV_CSR_REG(senvcfg):
+		return RISCV_CSR_GENERAL(senvcfg);
+	}
+
+	return strdup_printf("KVM_REG_RISCV_CSR_GENERAL | %lld /* UNKNOWN */", reg_off);
+}
+
+static const char *aia_csr_id_to_str(__u64 reg_off)
+{
+	/* reg_off is the offset into struct kvm_riscv_aia_csr */
+	switch (reg_off) {
+	case KVM_REG_RISCV_CSR_AIA_REG(siselect):
+		return RISCV_CSR_AIA(siselect);
+	case KVM_REG_RISCV_CSR_AIA_REG(iprio1):
+		return RISCV_CSR_AIA(iprio1);
+	case KVM_REG_RISCV_CSR_AIA_REG(iprio2):
+		return RISCV_CSR_AIA(iprio2);
+	case KVM_REG_RISCV_CSR_AIA_REG(sieh):
+		return RISCV_CSR_AIA(sieh);
+	case KVM_REG_RISCV_CSR_AIA_REG(siph):
+		return RISCV_CSR_AIA(siph);
+	case KVM_REG_RISCV_CSR_AIA_REG(iprio1h):
+		return RISCV_CSR_AIA(iprio1h);
+	case KVM_REG_RISCV_CSR_AIA_REG(iprio2h):
+		return RISCV_CSR_AIA(iprio2h);
+	}
+
+	return strdup_printf("KVM_REG_RISCV_CSR_AIA | %lld /* UNKNOWN */", reg_off);
+}
+
+static const char *smstateen_csr_id_to_str(__u64 reg_off)
+{
+	/* reg_off is the offset into struct kvm_riscv_smstateen_csr */
+	switch (reg_off) {
+	case KVM_REG_RISCV_CSR_SMSTATEEN_REG(sstateen0):
+		return RISCV_CSR_SMSTATEEN(sstateen0);
+	}
+
+	TEST_FAIL("Unknown smstateen csr reg: 0x%llx", reg_off);
+	return NULL;
+}
+
+static const char *csr_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_CSR);
+	__u64 reg_subtype = reg_off & KVM_REG_RISCV_SUBTYPE_MASK;
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_CSR);
+
+	reg_off &= ~KVM_REG_RISCV_SUBTYPE_MASK;
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_CSR_GENERAL:
+		return general_csr_id_to_str(reg_off);
+	case KVM_REG_RISCV_CSR_AIA:
+		return aia_csr_id_to_str(reg_off);
+	case KVM_REG_RISCV_CSR_SMSTATEEN:
+		return smstateen_csr_id_to_str(reg_off);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+static const char *timer_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct kvm_riscv_timer */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_TIMER);
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_TIMER);
+
+	switch (reg_off) {
+	case KVM_REG_RISCV_TIMER_REG(frequency):
+		return "KVM_REG_RISCV_TIMER_REG(frequency)";
+	case KVM_REG_RISCV_TIMER_REG(time):
+		return "KVM_REG_RISCV_TIMER_REG(time)";
+	case KVM_REG_RISCV_TIMER_REG(compare):
+		return "KVM_REG_RISCV_TIMER_REG(compare)";
+	case KVM_REG_RISCV_TIMER_REG(state):
+		return "KVM_REG_RISCV_TIMER_REG(state)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+static const char *fp_f_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct __riscv_f_ext_state */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_FP_F);
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_F);
+
+	switch (reg_off) {
+	case KVM_REG_RISCV_FP_F_REG(f[0]) ...
+	     KVM_REG_RISCV_FP_F_REG(f[31]):
+		return strdup_printf("KVM_REG_RISCV_FP_F_REG(f[%lld])", reg_off);
+	case KVM_REG_RISCV_FP_F_REG(fcsr):
+		return "KVM_REG_RISCV_FP_F_REG(fcsr)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+static const char *fp_d_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct __riscv_d_ext_state */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_FP_D);
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_FP_D);
+
+	switch (reg_off) {
+	case KVM_REG_RISCV_FP_D_REG(f[0]) ...
+	     KVM_REG_RISCV_FP_D_REG(f[31]):
+		return strdup_printf("KVM_REG_RISCV_FP_D_REG(f[%lld])", reg_off);
+	case KVM_REG_RISCV_FP_D_REG(fcsr):
+		return "KVM_REG_RISCV_FP_D_REG(fcsr)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+static const char *vector_id_to_str(const char *prefix, __u64 id)
+{
+	/* reg_off is the offset into struct __riscv_v_ext_state */
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_VECTOR);
+	int reg_index = 0;
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_VECTOR);
+
+	if (reg_off >= KVM_REG_RISCV_VECTOR_REG(0))
+		reg_index = reg_off -  KVM_REG_RISCV_VECTOR_REG(0);
+	switch (reg_off) {
+	case KVM_REG_RISCV_VECTOR_REG(0) ...
+	     KVM_REG_RISCV_VECTOR_REG(31):
+		return strdup_printf("KVM_REG_RISCV_VECTOR_REG(%d)", reg_index);
+	case KVM_REG_RISCV_VECTOR_CSR_REG(vstart):
+		return "KVM_REG_RISCV_VECTOR_CSR_REG(vstart)";
+	case KVM_REG_RISCV_VECTOR_CSR_REG(vl):
+		return "KVM_REG_RISCV_VECTOR_CSR_REG(vl)";
+	case KVM_REG_RISCV_VECTOR_CSR_REG(vtype):
+		return "KVM_REG_RISCV_VECTOR_CSR_REG(vtype)";
+	case KVM_REG_RISCV_VECTOR_CSR_REG(vcsr):
+		return "KVM_REG_RISCV_VECTOR_CSR_REG(vcsr)";
+	case KVM_REG_RISCV_VECTOR_CSR_REG(vlenb):
+		return "KVM_REG_RISCV_VECTOR_CSR_REG(vlenb)";
+	}
+
+	return strdup_printf("%lld /* UNKNOWN */", reg_off);
+}
+
+#define KVM_ISA_EXT_ARR(ext)		\
+[KVM_RISCV_ISA_EXT_##ext] = "KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_" #ext
+
+static const char *isa_ext_single_id_to_str(__u64 reg_off)
+{
+	static const char * const kvm_isa_ext_reg_name[] = {
+		KVM_ISA_EXT_ARR(A),
+		KVM_ISA_EXT_ARR(C),
+		KVM_ISA_EXT_ARR(D),
+		KVM_ISA_EXT_ARR(F),
+		KVM_ISA_EXT_ARR(H),
+		KVM_ISA_EXT_ARR(I),
+		KVM_ISA_EXT_ARR(M),
+		KVM_ISA_EXT_ARR(V),
+		KVM_ISA_EXT_ARR(SMNPM),
+		KVM_ISA_EXT_ARR(SMSTATEEN),
+		KVM_ISA_EXT_ARR(SSAIA),
+		KVM_ISA_EXT_ARR(SSCOFPMF),
+		KVM_ISA_EXT_ARR(SSNPM),
+		KVM_ISA_EXT_ARR(SSTC),
+		KVM_ISA_EXT_ARR(SVADE),
+		KVM_ISA_EXT_ARR(SVADU),
+		KVM_ISA_EXT_ARR(SVINVAL),
+		KVM_ISA_EXT_ARR(SVNAPOT),
+		KVM_ISA_EXT_ARR(SVPBMT),
+		KVM_ISA_EXT_ARR(SVVPTC),
+		KVM_ISA_EXT_ARR(ZAAMO),
+		KVM_ISA_EXT_ARR(ZABHA),
+		KVM_ISA_EXT_ARR(ZACAS),
+		KVM_ISA_EXT_ARR(ZALRSC),
+		KVM_ISA_EXT_ARR(ZAWRS),
+		KVM_ISA_EXT_ARR(ZBA),
+		KVM_ISA_EXT_ARR(ZBB),
+		KVM_ISA_EXT_ARR(ZBC),
+		KVM_ISA_EXT_ARR(ZBKB),
+		KVM_ISA_EXT_ARR(ZBKC),
+		KVM_ISA_EXT_ARR(ZBKX),
+		KVM_ISA_EXT_ARR(ZBS),
+		KVM_ISA_EXT_ARR(ZCA),
+		KVM_ISA_EXT_ARR(ZCB),
+		KVM_ISA_EXT_ARR(ZCD),
+		KVM_ISA_EXT_ARR(ZCF),
+		KVM_ISA_EXT_ARR(ZCMOP),
+		KVM_ISA_EXT_ARR(ZFA),
+		KVM_ISA_EXT_ARR(ZFBFMIN),
+		KVM_ISA_EXT_ARR(ZFH),
+		KVM_ISA_EXT_ARR(ZFHMIN),
+		KVM_ISA_EXT_ARR(ZICBOM),
+		KVM_ISA_EXT_ARR(ZICBOP),
+		KVM_ISA_EXT_ARR(ZICBOZ),
+		KVM_ISA_EXT_ARR(ZICCRSE),
+		KVM_ISA_EXT_ARR(ZICNTR),
+		KVM_ISA_EXT_ARR(ZICOND),
+		KVM_ISA_EXT_ARR(ZICSR),
+		KVM_ISA_EXT_ARR(ZIFENCEI),
+		KVM_ISA_EXT_ARR(ZIHINTNTL),
+		KVM_ISA_EXT_ARR(ZIHINTPAUSE),
+		KVM_ISA_EXT_ARR(ZIHPM),
+		KVM_ISA_EXT_ARR(ZIMOP),
+		KVM_ISA_EXT_ARR(ZKND),
+		KVM_ISA_EXT_ARR(ZKNE),
+		KVM_ISA_EXT_ARR(ZKNH),
+		KVM_ISA_EXT_ARR(ZKR),
+		KVM_ISA_EXT_ARR(ZKSED),
+		KVM_ISA_EXT_ARR(ZKSH),
+		KVM_ISA_EXT_ARR(ZKT),
+		KVM_ISA_EXT_ARR(ZTSO),
+		KVM_ISA_EXT_ARR(ZVBB),
+		KVM_ISA_EXT_ARR(ZVBC),
+		KVM_ISA_EXT_ARR(ZVFBFMIN),
+		KVM_ISA_EXT_ARR(ZVFBFWMA),
+		KVM_ISA_EXT_ARR(ZVFH),
+		KVM_ISA_EXT_ARR(ZVFHMIN),
+		KVM_ISA_EXT_ARR(ZVKB),
+		KVM_ISA_EXT_ARR(ZVKG),
+		KVM_ISA_EXT_ARR(ZVKNED),
+		KVM_ISA_EXT_ARR(ZVKNHA),
+		KVM_ISA_EXT_ARR(ZVKNHB),
+		KVM_ISA_EXT_ARR(ZVKSED),
+		KVM_ISA_EXT_ARR(ZVKSH),
+		KVM_ISA_EXT_ARR(ZVKT),
+	};
+
+	if (reg_off >= ARRAY_SIZE(kvm_isa_ext_reg_name))
+		return strdup_printf("KVM_REG_RISCV_ISA_SINGLE | %lld /* UNKNOWN */", reg_off);
+
+	return kvm_isa_ext_reg_name[reg_off];
+}
+
+static const char *isa_ext_multi_id_to_str(__u64 reg_subtype, __u64 reg_off)
+{
+	const char *unknown = "";
+
+	if (reg_off > KVM_REG_RISCV_ISA_MULTI_REG_LAST)
+		unknown = " /* UNKNOWN */";
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_ISA_MULTI_EN:
+		return strdup_printf("KVM_REG_RISCV_ISA_MULTI_EN | %lld%s", reg_off, unknown);
+	case KVM_REG_RISCV_ISA_MULTI_DIS:
+		return strdup_printf("KVM_REG_RISCV_ISA_MULTI_DIS | %lld%s", reg_off, unknown);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+static const char *isa_ext_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_ISA_EXT);
+	__u64 reg_subtype = reg_off & KVM_REG_RISCV_SUBTYPE_MASK;
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_ISA_EXT);
+
+	reg_off &= ~KVM_REG_RISCV_SUBTYPE_MASK;
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_ISA_SINGLE:
+		return isa_ext_single_id_to_str(reg_off);
+	case KVM_REG_RISCV_ISA_MULTI_EN:
+	case KVM_REG_RISCV_ISA_MULTI_DIS:
+		return isa_ext_multi_id_to_str(reg_subtype, reg_off);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+#define KVM_SBI_EXT_ARR(ext)		\
+[ext] = "KVM_REG_RISCV_SBI_SINGLE | " #ext
+
+static const char *sbi_ext_single_id_to_str(__u64 reg_off)
+{
+	/* reg_off is KVM_RISCV_SBI_EXT_ID */
+	static const char * const kvm_sbi_ext_reg_name[] = {
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_V01),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_TIME),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_IPI),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_RFENCE),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_SRST),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_HSM),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_PMU),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_DBCN),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_SUSP),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_STA),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_FWFT),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_MPXY),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_EXPERIMENTAL),
+		KVM_SBI_EXT_ARR(KVM_RISCV_SBI_EXT_VENDOR),
+	};
+
+	if (reg_off >= ARRAY_SIZE(kvm_sbi_ext_reg_name))
+		return strdup_printf("KVM_REG_RISCV_SBI_SINGLE | %lld /* UNKNOWN */", reg_off);
+
+	return kvm_sbi_ext_reg_name[reg_off];
+}
+
+static const char *sbi_ext_multi_id_to_str(__u64 reg_subtype, __u64 reg_off)
+{
+	const char *unknown = "";
+
+	if (reg_off > KVM_REG_RISCV_SBI_MULTI_REG_LAST)
+		unknown = " /* UNKNOWN */";
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_SBI_MULTI_EN:
+		return strdup_printf("KVM_REG_RISCV_SBI_MULTI_EN | %lld%s", reg_off, unknown);
+	case KVM_REG_RISCV_SBI_MULTI_DIS:
+		return strdup_printf("KVM_REG_RISCV_SBI_MULTI_DIS | %lld%s", reg_off, unknown);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+static const char *sbi_ext_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_SBI_EXT);
+	__u64 reg_subtype = reg_off & KVM_REG_RISCV_SUBTYPE_MASK;
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_SBI_EXT);
+
+	reg_off &= ~KVM_REG_RISCV_SUBTYPE_MASK;
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_SBI_SINGLE:
+		return sbi_ext_single_id_to_str(reg_off);
+	case KVM_REG_RISCV_SBI_MULTI_EN:
+	case KVM_REG_RISCV_SBI_MULTI_DIS:
+		return sbi_ext_multi_id_to_str(reg_subtype, reg_off);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+static const char *sbi_sta_id_to_str(__u64 reg_off)
+{
+	switch (reg_off) {
+	case 0: return "KVM_REG_RISCV_SBI_STA | KVM_REG_RISCV_SBI_STA_REG(shmem_lo)";
+	case 1: return "KVM_REG_RISCV_SBI_STA | KVM_REG_RISCV_SBI_STA_REG(shmem_hi)";
+	}
+	return strdup_printf("KVM_REG_RISCV_SBI_STA | %lld /* UNKNOWN */", reg_off);
+}
+
+static const char *sbi_fwft_id_to_str(__u64 reg_off)
+{
+	switch (reg_off) {
+	case 0: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.enable)";
+	case 1: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.flags)";
+	case 2: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.value)";
+	case 3: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.enable)";
+	case 4: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.flags)";
+	case 5: return "KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.value)";
+	}
+	return strdup_printf("KVM_REG_RISCV_SBI_FWFT | %lld /* UNKNOWN */", reg_off);
+}
+
+static const char *sbi_id_to_str(const char *prefix, __u64 id)
+{
+	__u64 reg_off = id & ~(REG_MASK | KVM_REG_RISCV_SBI_STATE);
+	__u64 reg_subtype = reg_off & KVM_REG_RISCV_SUBTYPE_MASK;
+
+	assert((id & KVM_REG_RISCV_TYPE_MASK) == KVM_REG_RISCV_SBI_STATE);
+
+	reg_off &= ~KVM_REG_RISCV_SUBTYPE_MASK;
+
+	switch (reg_subtype) {
+	case KVM_REG_RISCV_SBI_STA:
+		return sbi_sta_id_to_str(reg_off);
+	case KVM_REG_RISCV_SBI_FWFT:
+		return sbi_fwft_id_to_str(reg_off);
+	}
+
+	return strdup_printf("%lld | %lld /* UNKNOWN */", reg_subtype, reg_off);
+}
+
+void print_reg(const char *prefix, __u64 id)
+{
+	const char *reg_size = NULL;
+
+	TEST_ASSERT((id & KVM_REG_ARCH_MASK) == KVM_REG_RISCV,
+		    "%s: KVM_REG_RISCV missing in reg id: 0x%llx", prefix, id);
+
+	switch (id & KVM_REG_SIZE_MASK) {
+	case KVM_REG_SIZE_U32:
+		reg_size = "KVM_REG_SIZE_U32";
+		break;
+	case KVM_REG_SIZE_U64:
+		reg_size = "KVM_REG_SIZE_U64";
+		break;
+	case KVM_REG_SIZE_U128:
+		reg_size = "KVM_REG_SIZE_U128";
+		break;
+	case KVM_REG_SIZE_U256:
+		reg_size = "KVM_REG_SIZE_U256";
+		break;
+	default:
+		printf("\tKVM_REG_RISCV | (%lld << KVM_REG_SIZE_SHIFT) | 0x%llx /* UNKNOWN */,\n",
+		       (id & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT, id & ~REG_MASK);
+		return;
+	}
+
+	switch (id & KVM_REG_RISCV_TYPE_MASK) {
+	case KVM_REG_RISCV_CONFIG:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_CONFIG | %s,\n",
+				reg_size, config_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_CORE:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_CORE | %s,\n",
+				reg_size, core_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_CSR:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_CSR | %s,\n",
+				reg_size, csr_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_TIMER:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_TIMER | %s,\n",
+				reg_size, timer_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_FP_F:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_FP_F | %s,\n",
+				reg_size, fp_f_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_FP_D:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_FP_D | %s,\n",
+				reg_size, fp_d_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_VECTOR:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_VECTOR | %s,\n",
+		       reg_size, vector_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_ISA_EXT:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_ISA_EXT | %s,\n",
+				reg_size, isa_ext_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_SBI_EXT:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_SBI_EXT | %s,\n",
+				reg_size, sbi_ext_id_to_str(prefix, id));
+		break;
+	case KVM_REG_RISCV_SBI_STATE:
+		printf("\tKVM_REG_RISCV | %s | KVM_REG_RISCV_SBI_STATE | %s,\n",
+				reg_size, sbi_id_to_str(prefix, id));
+		break;
+	default:
+		printf("\tKVM_REG_RISCV | %s | 0x%llx /* UNKNOWN */,\n",
+				reg_size, id & ~REG_MASK);
+		return;
+	}
+}
+
+/*
+ * The current blessed list was primed with the output of kernel version
+ * v6.5-rc3 and then later updated with new registers.
+ */
+static __u64 base_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(isa),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicbom_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(mvendorid),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(marchid),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(mimpid),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicboz_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(satp_mode),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicbop_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.pc),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.ra),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.sp),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.gp),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.tp),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t0),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t1),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t2),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s0),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s1),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a0),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a1),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a2),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a3),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a4),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a5),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a6),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.a7),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s2),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s3),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s4),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s5),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s6),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s7),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s8),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s9),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s10),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.s11),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t3),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t4),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t5),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(regs.t6),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CORE | KVM_REG_RISCV_CORE_REG(mode),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(sstatus),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(sie),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(stvec),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(sscratch),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(sepc),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(scause),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(stval),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(sip),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(satp),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(scounteren),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_GENERAL | KVM_REG_RISCV_CSR_REG(senvcfg),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(frequency),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(time),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(compare),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(state),
+};
+
+/*
+ * The skips_set list registers that should skip set test.
+ *  - KVM_REG_RISCV_TIMER_REG(state): set would fail if it was not initialized properly.
+ */
+static __u64 base_skips_set[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_TIMER | KVM_REG_RISCV_TIMER_REG(state),
+};
+
+static __u64 sbi_base_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_V01,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_TIME,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_IPI,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_RFENCE,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_SRST,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_HSM,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_EXPERIMENTAL,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_VENDOR,
+};
+
+static __u64 sbi_sta_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_STA,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_STA | KVM_REG_RISCV_SBI_STA_REG(shmem_lo),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_STA | KVM_REG_RISCV_SBI_STA_REG(shmem_hi),
+};
+
+static __u64 sbi_fwft_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE | KVM_RISCV_SBI_EXT_FWFT,
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.enable),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.flags),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(misaligned_deleg.value),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.enable),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.flags),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_SBI_STATE | KVM_REG_RISCV_SBI_FWFT | KVM_REG_RISCV_SBI_FWFT_REG(pointer_masking.value),
+};
+
+static __u64 zicbom_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicbom_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOM,
+};
+
+static __u64 zicbop_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicbop_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOP,
+};
+
+static __u64 zicboz_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CONFIG | KVM_REG_RISCV_CONFIG_REG(zicboz_block_size),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_ZICBOZ,
+};
+
+static __u64 aia_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(siselect),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio1),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio2),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(sieh),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(siph),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio1h),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_AIA | KVM_REG_RISCV_CSR_AIA_REG(iprio2h),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SSAIA,
+};
+
+static __u64 smstateen_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_CSR | KVM_REG_RISCV_CSR_SMSTATEEN | KVM_REG_RISCV_CSR_SMSTATEEN_REG(sstateen0),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_SMSTATEEN,
+};
+
+static __u64 fp_f_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[0]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[1]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[2]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[3]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[4]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[5]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[6]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[7]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[8]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[9]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[10]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[11]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[12]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[13]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[14]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[15]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[16]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[17]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[18]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[19]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[20]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[21]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[22]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[23]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[24]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[25]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[26]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[27]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[28]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[29]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[30]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(f[31]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_F | KVM_REG_RISCV_FP_F_REG(fcsr),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_F,
+};
+
+static __u64 fp_d_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[0]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[1]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[2]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[3]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[4]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[5]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[6]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[7]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[8]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[9]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[10]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[11]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[12]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[13]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[14]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[15]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[16]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[17]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[18]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[19]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[20]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[21]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[22]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[23]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[24]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[25]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[26]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[27]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[28]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[29]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[30]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U64 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(f[31]),
+	KVM_REG_RISCV | KVM_REG_SIZE_U32 | KVM_REG_RISCV_FP_D | KVM_REG_RISCV_FP_D_REG(fcsr),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_D,
+};
+
+/* Define a default vector registers with length. This will be overwritten at runtime */
+static __u64 vector_regs[] = {
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_CSR_REG(vstart),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_CSR_REG(vl),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_CSR_REG(vtype),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_CSR_REG(vcsr),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_CSR_REG(vlenb),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(0),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(1),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(2),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(3),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(4),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(5),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(6),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(7),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(8),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(9),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(10),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(11),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(12),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(13),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(14),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(15),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(16),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(17),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(18),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(19),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(20),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(21),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(22),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(23),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(24),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(25),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(26),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(27),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(28),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(29),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(30),
+	KVM_REG_RISCV | KVM_REG_SIZE_U128 | KVM_REG_RISCV_VECTOR | KVM_REG_RISCV_VECTOR_REG(31),
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG | KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE | KVM_RISCV_ISA_EXT_V,
+};
+
+#define SUBLIST_BASE \
+	{"base", .regs = base_regs, .regs_n = ARRAY_SIZE(base_regs), \
+	 .skips_set = base_skips_set, .skips_set_n = ARRAY_SIZE(base_skips_set),}
+#define SUBLIST_SBI_BASE \
+	{"sbi-base", .feature_type = VCPU_FEATURE_SBI_EXT, .feature = KVM_RISCV_SBI_EXT_V01, \
+	 .regs = sbi_base_regs, .regs_n = ARRAY_SIZE(sbi_base_regs),}
+#define SUBLIST_SBI_STA \
+	{"sbi-sta", .feature_type = VCPU_FEATURE_SBI_EXT, .feature = KVM_RISCV_SBI_EXT_STA, \
+	 .regs = sbi_sta_regs, .regs_n = ARRAY_SIZE(sbi_sta_regs),}
+#define SUBLIST_SBI_FWFT \
+	{"sbi-fwft", .feature_type = VCPU_FEATURE_SBI_EXT, .feature = KVM_RISCV_SBI_EXT_FWFT, \
+	 .regs = sbi_fwft_regs, .regs_n = ARRAY_SIZE(sbi_fwft_regs),}
+#define SUBLIST_ZICBOM \
+	{"zicbom", .feature = KVM_RISCV_ISA_EXT_ZICBOM, .regs = zicbom_regs, .regs_n = ARRAY_SIZE(zicbom_regs),}
+#define SUBLIST_ZICBOP \
+	{"zicbop", .feature = KVM_RISCV_ISA_EXT_ZICBOP, .regs = zicbop_regs, .regs_n = ARRAY_SIZE(zicbop_regs),}
+#define SUBLIST_ZICBOZ \
+	{"zicboz", .feature = KVM_RISCV_ISA_EXT_ZICBOZ, .regs = zicboz_regs, .regs_n = ARRAY_SIZE(zicboz_regs),}
+#define SUBLIST_AIA \
+	{"aia", .feature = KVM_RISCV_ISA_EXT_SSAIA, .regs = aia_regs, .regs_n = ARRAY_SIZE(aia_regs),}
+#define SUBLIST_SMSTATEEN \
+	{"smstateen", .feature = KVM_RISCV_ISA_EXT_SMSTATEEN, .regs = smstateen_regs, .regs_n = ARRAY_SIZE(smstateen_regs),}
+#define SUBLIST_FP_F \
+	{"fp_f", .feature = KVM_RISCV_ISA_EXT_F, .regs = fp_f_regs, \
+		.regs_n = ARRAY_SIZE(fp_f_regs),}
+#define SUBLIST_FP_D \
+	{"fp_d", .feature = KVM_RISCV_ISA_EXT_D, .regs = fp_d_regs, \
+		.regs_n = ARRAY_SIZE(fp_d_regs),}
+
+#define SUBLIST_V \
+	{"v", .feature = KVM_RISCV_ISA_EXT_V, .regs = vector_regs, .regs_n = ARRAY_SIZE(vector_regs),}
+
+#define KVM_ISA_EXT_SIMPLE_CONFIG(ext, extu)			\
+static __u64 regs_##ext[] = {					\
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG |			\
+	KVM_REG_RISCV_ISA_EXT | KVM_REG_RISCV_ISA_SINGLE |	\
+	KVM_RISCV_ISA_EXT_##extu,				\
+};								\
+static struct vcpu_reg_list config_##ext = {			\
+	.sublists = {						\
+		SUBLIST_BASE,					\
+		{						\
+			.name = #ext,				\
+			.feature = KVM_RISCV_ISA_EXT_##extu,	\
+			.regs = regs_##ext,			\
+			.regs_n = ARRAY_SIZE(regs_##ext),	\
+		},						\
+		{0},						\
+	},							\
+}								\
+
+#define KVM_SBI_EXT_SIMPLE_CONFIG(ext, extu)			\
+static __u64 regs_sbi_##ext[] = {				\
+	KVM_REG_RISCV | KVM_REG_SIZE_ULONG |			\
+	KVM_REG_RISCV_SBI_EXT | KVM_REG_RISCV_SBI_SINGLE |	\
+	KVM_RISCV_SBI_EXT_##extu,				\
+};								\
+static struct vcpu_reg_list config_sbi_##ext = {		\
+	.sublists = {						\
+		SUBLIST_BASE,					\
+		{						\
+			.name = "sbi-"#ext,			\
+			.feature_type = VCPU_FEATURE_SBI_EXT,	\
+			.feature = KVM_RISCV_SBI_EXT_##extu,	\
+			.regs = regs_sbi_##ext,			\
+			.regs_n = ARRAY_SIZE(regs_sbi_##ext),	\
+		},						\
+		{0},						\
+	},							\
+}								\
+
+#define KVM_ISA_EXT_SUBLIST_CONFIG(ext, extu)			\
+static struct vcpu_reg_list config_##ext = {			\
+	.sublists = {						\
+		SUBLIST_BASE,					\
+		SUBLIST_##extu,					\
+		{0},						\
+	},							\
+}								\
+
+#define KVM_SBI_EXT_SUBLIST_CONFIG(ext, extu)			\
+static struct vcpu_reg_list config_sbi_##ext = {		\
+	.sublists = {						\
+		SUBLIST_BASE,					\
+		SUBLIST_SBI_##extu,				\
+		{0},						\
+	},							\
+}								\
+
+/* Note: The below list is alphabetically sorted. */
+
+KVM_SBI_EXT_SUBLIST_CONFIG(base, BASE);
+KVM_SBI_EXT_SUBLIST_CONFIG(sta, STA);
+KVM_SBI_EXT_SIMPLE_CONFIG(pmu, PMU);
+KVM_SBI_EXT_SIMPLE_CONFIG(dbcn, DBCN);
+KVM_SBI_EXT_SIMPLE_CONFIG(susp, SUSP);
+KVM_SBI_EXT_SIMPLE_CONFIG(mpxy, MPXY);
+KVM_SBI_EXT_SUBLIST_CONFIG(fwft, FWFT);
+
+KVM_ISA_EXT_SUBLIST_CONFIG(aia, AIA);
+KVM_ISA_EXT_SUBLIST_CONFIG(fp_f, FP_F);
+KVM_ISA_EXT_SUBLIST_CONFIG(fp_d, FP_D);
+KVM_ISA_EXT_SUBLIST_CONFIG(v, V);
+KVM_ISA_EXT_SIMPLE_CONFIG(h, H);
+KVM_ISA_EXT_SIMPLE_CONFIG(smnpm, SMNPM);
+KVM_ISA_EXT_SUBLIST_CONFIG(smstateen, SMSTATEEN);
+KVM_ISA_EXT_SIMPLE_CONFIG(sscofpmf, SSCOFPMF);
+KVM_ISA_EXT_SIMPLE_CONFIG(ssnpm, SSNPM);
+KVM_ISA_EXT_SIMPLE_CONFIG(sstc, SSTC);
+KVM_ISA_EXT_SIMPLE_CONFIG(svade, SVADE);
+KVM_ISA_EXT_SIMPLE_CONFIG(svadu, SVADU);
+KVM_ISA_EXT_SIMPLE_CONFIG(svinval, SVINVAL);
+KVM_ISA_EXT_SIMPLE_CONFIG(svnapot, SVNAPOT);
+KVM_ISA_EXT_SIMPLE_CONFIG(svpbmt, SVPBMT);
+KVM_ISA_EXT_SIMPLE_CONFIG(svvptc, SVVPTC);
+KVM_ISA_EXT_SIMPLE_CONFIG(zaamo, ZAAMO);
+KVM_ISA_EXT_SIMPLE_CONFIG(zabha, ZABHA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zacas, ZACAS);
+KVM_ISA_EXT_SIMPLE_CONFIG(zalrsc, ZALRSC);
+KVM_ISA_EXT_SIMPLE_CONFIG(zawrs, ZAWRS);
+KVM_ISA_EXT_SIMPLE_CONFIG(zba, ZBA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbb, ZBB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbc, ZBC);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbkb, ZBKB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbkc, ZBKC);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbkx, ZBKX);
+KVM_ISA_EXT_SIMPLE_CONFIG(zbs, ZBS);
+KVM_ISA_EXT_SIMPLE_CONFIG(zca, ZCA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zcb, ZCB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zcd, ZCD);
+KVM_ISA_EXT_SIMPLE_CONFIG(zcf, ZCF);
+KVM_ISA_EXT_SIMPLE_CONFIG(zcmop, ZCMOP);
+KVM_ISA_EXT_SIMPLE_CONFIG(zfa, ZFA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zfbfmin, ZFBFMIN);
+KVM_ISA_EXT_SIMPLE_CONFIG(zfh, ZFH);
+KVM_ISA_EXT_SIMPLE_CONFIG(zfhmin, ZFHMIN);
+KVM_ISA_EXT_SUBLIST_CONFIG(zicbom, ZICBOM);
+KVM_ISA_EXT_SUBLIST_CONFIG(zicbop, ZICBOP);
+KVM_ISA_EXT_SUBLIST_CONFIG(zicboz, ZICBOZ);
+KVM_ISA_EXT_SIMPLE_CONFIG(ziccrse, ZICCRSE);
+KVM_ISA_EXT_SIMPLE_CONFIG(zicntr, ZICNTR);
+KVM_ISA_EXT_SIMPLE_CONFIG(zicond, ZICOND);
+KVM_ISA_EXT_SIMPLE_CONFIG(zicsr, ZICSR);
+KVM_ISA_EXT_SIMPLE_CONFIG(zifencei, ZIFENCEI);
+KVM_ISA_EXT_SIMPLE_CONFIG(zihintntl, ZIHINTNTL);
+KVM_ISA_EXT_SIMPLE_CONFIG(zihintpause, ZIHINTPAUSE);
+KVM_ISA_EXT_SIMPLE_CONFIG(zihpm, ZIHPM);
+KVM_ISA_EXT_SIMPLE_CONFIG(zimop, ZIMOP);
+KVM_ISA_EXT_SIMPLE_CONFIG(zknd, ZKND);
+KVM_ISA_EXT_SIMPLE_CONFIG(zkne, ZKNE);
+KVM_ISA_EXT_SIMPLE_CONFIG(zknh, ZKNH);
+KVM_ISA_EXT_SIMPLE_CONFIG(zkr, ZKR);
+KVM_ISA_EXT_SIMPLE_CONFIG(zksed, ZKSED);
+KVM_ISA_EXT_SIMPLE_CONFIG(zksh, ZKSH);
+KVM_ISA_EXT_SIMPLE_CONFIG(zkt, ZKT);
+KVM_ISA_EXT_SIMPLE_CONFIG(ztso, ZTSO);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvbb, ZVBB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvbc, ZVBC);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvfbfmin, ZVFBFMIN);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvfbfwma, ZVFBFWMA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvfh, ZVFH);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvfhmin, ZVFHMIN);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvkb, ZVKB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvkg, ZVKG);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvkned, ZVKNED);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvknha, ZVKNHA);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvknhb, ZVKNHB);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvksed, ZVKSED);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvksh, ZVKSH);
+KVM_ISA_EXT_SIMPLE_CONFIG(zvkt, ZVKT);
+
+struct vcpu_reg_list *vcpu_configs[] = {
+	&config_sbi_base,
+	&config_sbi_sta,
+	&config_sbi_pmu,
+	&config_sbi_dbcn,
+	&config_sbi_susp,
+	&config_sbi_mpxy,
+	&config_sbi_fwft,
+	&config_aia,
+	&config_fp_f,
+	&config_fp_d,
+	&config_h,
+	&config_v,
+	&config_smnpm,
+	&config_smstateen,
+	&config_sscofpmf,
+	&config_ssnpm,
+	&config_sstc,
+	&config_svade,
+	&config_svadu,
+	&config_svinval,
+	&config_svnapot,
+	&config_svpbmt,
+	&config_svvptc,
+	&config_zaamo,
+	&config_zabha,
+	&config_zacas,
+	&config_zalrsc,
+	&config_zawrs,
+	&config_zba,
+	&config_zbb,
+	&config_zbc,
+	&config_zbkb,
+	&config_zbkc,
+	&config_zbkx,
+	&config_zbs,
+	&config_zca,
+	&config_zcb,
+	&config_zcd,
+	&config_zcf,
+	&config_zcmop,
+	&config_zfa,
+	&config_zfbfmin,
+	&config_zfh,
+	&config_zfhmin,
+	&config_zicbom,
+	&config_zicbop,
+	&config_zicboz,
+	&config_ziccrse,
+	&config_zicntr,
+	&config_zicond,
+	&config_zicsr,
+	&config_zifencei,
+	&config_zihintntl,
+	&config_zihintpause,
+	&config_zihpm,
+	&config_zimop,
+	&config_zknd,
+	&config_zkne,
+	&config_zknh,
+	&config_zkr,
+	&config_zksed,
+	&config_zksh,
+	&config_zkt,
+	&config_ztso,
+	&config_zvbb,
+	&config_zvbc,
+	&config_zvfbfmin,
+	&config_zvfbfwma,
+	&config_zvfh,
+	&config_zvfhmin,
+	&config_zvkb,
+	&config_zvkg,
+	&config_zvkned,
+	&config_zvknha,
+	&config_zvknhb,
+	&config_zvksed,
+	&config_zvksh,
+	&config_zvkt,
+};
+int vcpu_configs_n = ARRAY_SIZE(vcpu_configs);
diff --git a/tools/testing/selftests/kvm/riscv/sbi_pmu_test.c b/tools/testing/selftests/kvm/riscv/sbi_pmu_test.c
new file mode 100644
index 000000000000..924a335d2262
--- /dev/null
+++ b/tools/testing/selftests/kvm/riscv/sbi_pmu_test.c
@@ -0,0 +1,731 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * sbi_pmu_test.c - Tests the riscv64 SBI PMU functionality.
+ *
+ * Copyright (c) 2024, Rivos Inc.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "kvm_util.h"
+#include "test_util.h"
+#include "processor.h"
+#include "sbi.h"
+#include "arch_timer.h"
+#include "ucall_common.h"
+
+/* Maximum counters(firmware + hardware) */
+#define RISCV_MAX_PMU_COUNTERS 64
+union sbi_pmu_ctr_info ctrinfo_arr[RISCV_MAX_PMU_COUNTERS];
+
+/* Snapshot shared memory data */
+#define PMU_SNAPSHOT_GPA_BASE		BIT(30)
+static void *snapshot_gva;
+static vm_paddr_t snapshot_gpa;
+
+static int vcpu_shared_irq_count;
+static int counter_in_use;
+
+/* Cache the available counters in a bitmask */
+static unsigned long counter_mask_available;
+
+static bool illegal_handler_invoked;
+
+#define SBI_PMU_TEST_BASIC	BIT(0)
+#define SBI_PMU_TEST_EVENTS	BIT(1)
+#define SBI_PMU_TEST_SNAPSHOT	BIT(2)
+#define SBI_PMU_TEST_OVERFLOW	BIT(3)
+
+#define SBI_PMU_OVERFLOW_IRQNUM_DEFAULT 5
+struct test_args {
+	int disabled_tests;
+	int overflow_irqnum;
+};
+
+static struct test_args targs;
+
+unsigned long pmu_csr_read_num(int csr_num)
+{
+#define switchcase_csr_read(__csr_num, __val)		{\
+	case __csr_num:					\
+		__val = csr_read(__csr_num);		\
+		break; }
+#define switchcase_csr_read_2(__csr_num, __val)		{\
+	switchcase_csr_read(__csr_num + 0, __val)	 \
+	switchcase_csr_read(__csr_num + 1, __val)}
+#define switchcase_csr_read_4(__csr_num, __val)		{\
+	switchcase_csr_read_2(__csr_num + 0, __val)	 \
+	switchcase_csr_read_2(__csr_num + 2, __val)}
+#define switchcase_csr_read_8(__csr_num, __val)		{\
+	switchcase_csr_read_4(__csr_num + 0, __val)	 \
+	switchcase_csr_read_4(__csr_num + 4, __val)}
+#define switchcase_csr_read_16(__csr_num, __val)	{\
+	switchcase_csr_read_8(__csr_num + 0, __val)	 \
+	switchcase_csr_read_8(__csr_num + 8, __val)}
+#define switchcase_csr_read_32(__csr_num, __val)	{\
+	switchcase_csr_read_16(__csr_num + 0, __val)	 \
+	switchcase_csr_read_16(__csr_num + 16, __val)}
+
+	unsigned long ret = 0;
+
+	switch (csr_num) {
+	switchcase_csr_read_32(CSR_CYCLE, ret)
+	default :
+		break;
+	}
+
+	return ret;
+#undef switchcase_csr_read_32
+#undef switchcase_csr_read_16
+#undef switchcase_csr_read_8
+#undef switchcase_csr_read_4
+#undef switchcase_csr_read_2
+#undef switchcase_csr_read
+}
+
+static inline void dummy_func_loop(uint64_t iter)
+{
+	int i = 0;
+
+	while (i < iter) {
+		asm volatile("nop");
+		i++;
+	}
+}
+
+static void start_counter(unsigned long counter, unsigned long start_flags,
+			  unsigned long ival)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_START, counter, 1, start_flags,
+			ival, 0, 0);
+	__GUEST_ASSERT(ret.error == 0, "Unable to start counter %ld\n", counter);
+}
+
+/* This should be invoked only for reset counter use case */
+static void stop_reset_counter(unsigned long counter, unsigned long stop_flags)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_STOP, counter, 1,
+					stop_flags | SBI_PMU_STOP_FLAG_RESET, 0, 0, 0);
+	__GUEST_ASSERT(ret.error == SBI_ERR_ALREADY_STOPPED,
+			       "Unable to stop counter %ld\n", counter);
+}
+
+static void stop_counter(unsigned long counter, unsigned long stop_flags)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_STOP, counter, 1, stop_flags,
+			0, 0, 0);
+	__GUEST_ASSERT(ret.error == 0 || ret.error == SBI_ERR_ALREADY_STOPPED,
+		       "Unable to stop counter %ld error %ld\n", counter, ret.error);
+}
+
+static void guest_illegal_exception_handler(struct pt_regs *regs)
+{
+	unsigned long insn;
+	int opcode, csr_num, funct3;
+
+	__GUEST_ASSERT(regs->cause == EXC_INST_ILLEGAL,
+		       "Unexpected exception handler %lx\n", regs->cause);
+
+	insn = regs->badaddr;
+	opcode = (insn & INSN_OPCODE_MASK) >> INSN_OPCODE_SHIFT;
+	__GUEST_ASSERT(opcode == INSN_OPCODE_SYSTEM,
+		       "Unexpected instruction with opcode 0x%x insn 0x%lx\n", opcode, insn);
+
+	csr_num = GET_CSR_NUM(insn);
+	funct3 = GET_RM(insn);
+	/* Validate if it is a CSR read/write operation */
+	__GUEST_ASSERT(funct3 <= 7 && (funct3 != 0 && funct3 != 4),
+		       "Unexpected system opcode with funct3 0x%x csr_num 0x%x\n",
+		       funct3, csr_num);
+
+	/* Validate if it is a HPMCOUNTER CSR operation */
+	__GUEST_ASSERT((csr_num >= CSR_CYCLE && csr_num <= CSR_HPMCOUNTER31),
+		       "Unexpected csr_num 0x%x\n", csr_num);
+
+	illegal_handler_invoked = true;
+	/* skip the trapping instruction */
+	regs->epc += 4;
+}
+
+static void guest_irq_handler(struct pt_regs *regs)
+{
+	unsigned int irq_num = regs->cause & ~CAUSE_IRQ_FLAG;
+	struct riscv_pmu_snapshot_data *snapshot_data = snapshot_gva;
+	unsigned long overflown_mask;
+
+	/* Validate that we are in the correct irq handler */
+	GUEST_ASSERT_EQ(irq_num, IRQ_PMU_OVF);
+
+	/* Stop all counters first to avoid further interrupts */
+	stop_counter(counter_in_use, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+
+	csr_clear(CSR_SIP, BIT(IRQ_PMU_OVF));
+
+	overflown_mask = READ_ONCE(snapshot_data->ctr_overflow_mask);
+	GUEST_ASSERT(overflown_mask & 0x01);
+
+	WRITE_ONCE(vcpu_shared_irq_count, vcpu_shared_irq_count+1);
+}
+
+static unsigned long get_counter_index(unsigned long cbase, unsigned long cmask,
+				       unsigned long cflags,
+				       unsigned long event)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_CFG_MATCH, cbase, cmask,
+			cflags, event, 0, 0);
+	__GUEST_ASSERT(ret.error == 0, "config matching failed %ld\n", ret.error);
+	GUEST_ASSERT(ret.value < RISCV_MAX_PMU_COUNTERS);
+	GUEST_ASSERT(BIT(ret.value) & counter_mask_available);
+
+	return ret.value;
+}
+
+static unsigned long get_num_counters(void)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_NUM_COUNTERS, 0, 0, 0, 0, 0, 0);
+
+	__GUEST_ASSERT(ret.error == 0, "Unable to retrieve number of counters from SBI PMU");
+	__GUEST_ASSERT(ret.value < RISCV_MAX_PMU_COUNTERS,
+		       "Invalid number of counters %ld\n", ret.value);
+
+	return ret.value;
+}
+
+static void update_counter_info(int num_counters)
+{
+	int i = 0;
+	struct sbiret ret;
+
+	for (i = 0; i < num_counters; i++) {
+		ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_GET_INFO, i, 0, 0, 0, 0, 0);
+
+		/* There can be gaps in logical counter indicies*/
+		if (ret.error)
+			continue;
+		GUEST_ASSERT_NE(ret.value, 0);
+
+		ctrinfo_arr[i].value = ret.value;
+		counter_mask_available |= BIT(i);
+	}
+
+	GUEST_ASSERT(counter_mask_available > 0);
+}
+
+static unsigned long read_fw_counter(int idx, union sbi_pmu_ctr_info ctrinfo)
+{
+	struct sbiret ret;
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_FW_READ, idx, 0, 0, 0, 0, 0);
+	GUEST_ASSERT(ret.error == 0);
+	return ret.value;
+}
+
+static unsigned long read_counter(int idx, union sbi_pmu_ctr_info ctrinfo)
+{
+	unsigned long counter_val = 0;
+
+	__GUEST_ASSERT(ctrinfo.type < 2, "Invalid counter type %d", ctrinfo.type);
+
+	if (ctrinfo.type == SBI_PMU_CTR_TYPE_HW)
+		counter_val = pmu_csr_read_num(ctrinfo.csr);
+	else if (ctrinfo.type == SBI_PMU_CTR_TYPE_FW)
+		counter_val = read_fw_counter(idx, ctrinfo);
+
+	return counter_val;
+}
+
+static inline void verify_sbi_requirement_assert(void)
+{
+	long out_val = 0;
+	bool probe;
+
+	probe = guest_sbi_probe_extension(SBI_EXT_PMU, &out_val);
+	GUEST_ASSERT(probe && out_val == 1);
+
+	if (get_host_sbi_spec_version() < sbi_mk_version(2, 0))
+		__GUEST_ASSERT(0, "SBI implementation version doesn't support PMU Snapshot");
+}
+
+static void snapshot_set_shmem(vm_paddr_t gpa, unsigned long flags)
+{
+	unsigned long lo = (unsigned long)gpa;
+#if __riscv_xlen == 32
+	unsigned long hi = (unsigned long)(gpa >> 32);
+#else
+	unsigned long hi = gpa == -1 ? -1 : 0;
+#endif
+	struct sbiret ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_SNAPSHOT_SET_SHMEM,
+				      lo, hi, flags, 0, 0, 0);
+
+	GUEST_ASSERT(ret.value == 0 && ret.error == 0);
+}
+
+static void test_pmu_event(unsigned long event)
+{
+	unsigned long counter;
+	unsigned long counter_value_pre, counter_value_post;
+	unsigned long counter_init_value = 100;
+
+	counter = get_counter_index(0, counter_mask_available, 0, event);
+	counter_value_pre = read_counter(counter, ctrinfo_arr[counter]);
+
+	/* Do not set the initial value */
+	start_counter(counter, 0, 0);
+	dummy_func_loop(10000);
+	stop_counter(counter, 0);
+
+	counter_value_post = read_counter(counter, ctrinfo_arr[counter]);
+	__GUEST_ASSERT(counter_value_post > counter_value_pre,
+		       "Event update verification failed: post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_value_pre);
+
+	/*
+	 * We can't just update the counter without starting it.
+	 * Do start/stop twice to simulate that by first initializing to a very
+	 * high value and a low value after that.
+	 */
+	start_counter(counter, SBI_PMU_START_FLAG_SET_INIT_VALUE, ULONG_MAX/2);
+	stop_counter(counter, 0);
+	counter_value_pre = read_counter(counter, ctrinfo_arr[counter]);
+
+	start_counter(counter, SBI_PMU_START_FLAG_SET_INIT_VALUE, counter_init_value);
+	stop_counter(counter, 0);
+	counter_value_post = read_counter(counter, ctrinfo_arr[counter]);
+	__GUEST_ASSERT(counter_value_pre > counter_value_post,
+		       "Counter reinitialization verification failed : post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_value_pre);
+
+	/* Now set the initial value and compare */
+	start_counter(counter, SBI_PMU_START_FLAG_SET_INIT_VALUE, counter_init_value);
+	dummy_func_loop(10000);
+	stop_counter(counter, 0);
+
+	counter_value_post = read_counter(counter, ctrinfo_arr[counter]);
+	__GUEST_ASSERT(counter_value_post > counter_init_value,
+		       "Event update verification failed: post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_init_value);
+
+	stop_reset_counter(counter, 0);
+}
+
+static void test_pmu_event_snapshot(unsigned long event)
+{
+	unsigned long counter;
+	unsigned long counter_value_pre, counter_value_post;
+	unsigned long counter_init_value = 100;
+	struct riscv_pmu_snapshot_data *snapshot_data = snapshot_gva;
+
+	counter = get_counter_index(0, counter_mask_available, 0, event);
+	counter_value_pre = read_counter(counter, ctrinfo_arr[counter]);
+
+	/* Do not set the initial value */
+	start_counter(counter, 0, 0);
+	dummy_func_loop(10000);
+	stop_counter(counter, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+
+	/* The counter value is updated w.r.t relative index of cbase */
+	counter_value_post = READ_ONCE(snapshot_data->ctr_values[0]);
+	__GUEST_ASSERT(counter_value_post > counter_value_pre,
+		       "Event update verification failed: post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_value_pre);
+
+	/*
+	 * We can't just update the counter without starting it.
+	 * Do start/stop twice to simulate that by first initializing to a very
+	 * high value and a low value after that.
+	 */
+	WRITE_ONCE(snapshot_data->ctr_values[0], ULONG_MAX/2);
+	start_counter(counter, SBI_PMU_START_FLAG_INIT_SNAPSHOT, 0);
+	stop_counter(counter, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+	counter_value_pre = READ_ONCE(snapshot_data->ctr_values[0]);
+
+	WRITE_ONCE(snapshot_data->ctr_values[0], counter_init_value);
+	start_counter(counter, SBI_PMU_START_FLAG_INIT_SNAPSHOT, 0);
+	stop_counter(counter, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+	counter_value_post = READ_ONCE(snapshot_data->ctr_values[0]);
+	__GUEST_ASSERT(counter_value_pre > counter_value_post,
+		       "Counter reinitialization verification failed : post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_value_pre);
+
+	/* Now set the initial value and compare */
+	WRITE_ONCE(snapshot_data->ctr_values[0], counter_init_value);
+	start_counter(counter, SBI_PMU_START_FLAG_INIT_SNAPSHOT, 0);
+	dummy_func_loop(10000);
+	stop_counter(counter, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+
+	counter_value_post = READ_ONCE(snapshot_data->ctr_values[0]);
+	__GUEST_ASSERT(counter_value_post > counter_init_value,
+		       "Event update verification failed: post [%lx] pre [%lx]\n",
+		       counter_value_post, counter_init_value);
+
+	stop_reset_counter(counter, 0);
+}
+
+static void test_pmu_event_overflow(unsigned long event)
+{
+	unsigned long counter;
+	unsigned long counter_value_post;
+	unsigned long counter_init_value = ULONG_MAX - 10000;
+	struct riscv_pmu_snapshot_data *snapshot_data = snapshot_gva;
+
+	counter = get_counter_index(0, counter_mask_available, 0, event);
+	counter_in_use = counter;
+
+	/* The counter value is updated w.r.t relative index of cbase passed to start/stop */
+	WRITE_ONCE(snapshot_data->ctr_values[0], counter_init_value);
+	start_counter(counter, SBI_PMU_START_FLAG_INIT_SNAPSHOT, 0);
+	dummy_func_loop(10000);
+	udelay(msecs_to_usecs(2000));
+	/* irq handler should have stopped the counter */
+	stop_counter(counter, SBI_PMU_STOP_FLAG_TAKE_SNAPSHOT);
+
+	counter_value_post = READ_ONCE(snapshot_data->ctr_values[0]);
+	/* The counter value after stopping should be less the init value due to overflow */
+	__GUEST_ASSERT(counter_value_post < counter_init_value,
+		       "counter_value_post %lx counter_init_value %lx for counter\n",
+		       counter_value_post, counter_init_value);
+
+	stop_reset_counter(counter, 0);
+}
+
+static void test_invalid_event(void)
+{
+	struct sbiret ret;
+	unsigned long event = 0x1234; /* A random event */
+
+	ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_CFG_MATCH, 0,
+			counter_mask_available, 0, event, 0, 0);
+	GUEST_ASSERT_EQ(ret.error, SBI_ERR_NOT_SUPPORTED);
+}
+
+static void test_pmu_events(void)
+{
+	int num_counters = 0;
+
+	/* Get the counter details */
+	num_counters = get_num_counters();
+	update_counter_info(num_counters);
+
+	/* Sanity testing for any random invalid event */
+	test_invalid_event();
+
+	/* Only these two events are guaranteed to be present */
+	test_pmu_event(SBI_PMU_HW_CPU_CYCLES);
+	test_pmu_event(SBI_PMU_HW_INSTRUCTIONS);
+
+	GUEST_DONE();
+}
+
+static void test_pmu_basic_sanity(void)
+{
+	long out_val = 0;
+	bool probe;
+	struct sbiret ret;
+	int num_counters = 0, i;
+	union sbi_pmu_ctr_info ctrinfo;
+
+	probe = guest_sbi_probe_extension(SBI_EXT_PMU, &out_val);
+	GUEST_ASSERT(probe && out_val == 1);
+
+	num_counters = get_num_counters();
+
+	for (i = 0; i < num_counters; i++) {
+		ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_GET_INFO, i,
+				0, 0, 0, 0, 0);
+
+		/* There can be gaps in logical counter indicies*/
+		if (ret.error)
+			continue;
+		GUEST_ASSERT_NE(ret.value, 0);
+
+		ctrinfo.value = ret.value;
+
+		/**
+		 * Accessibility check of hardware and read capability of firmware counters.
+		 * The spec doesn't mandate any initial value. No need to check any value.
+		 */
+		if (ctrinfo.type == SBI_PMU_CTR_TYPE_HW) {
+			pmu_csr_read_num(ctrinfo.csr);
+			GUEST_ASSERT(illegal_handler_invoked);
+		} else if (ctrinfo.type == SBI_PMU_CTR_TYPE_FW) {
+			read_fw_counter(i, ctrinfo);
+		}
+	}
+
+	GUEST_DONE();
+}
+
+static void test_pmu_events_snaphost(void)
+{
+	int num_counters = 0;
+	struct riscv_pmu_snapshot_data *snapshot_data = snapshot_gva;
+	int i;
+
+	/* Verify presence of SBI PMU and minimum requrired SBI version */
+	verify_sbi_requirement_assert();
+
+	snapshot_set_shmem(snapshot_gpa, 0);
+
+	/* Get the counter details */
+	num_counters = get_num_counters();
+	update_counter_info(num_counters);
+
+	/* Validate shared memory access */
+	GUEST_ASSERT_EQ(READ_ONCE(snapshot_data->ctr_overflow_mask), 0);
+	for (i = 0; i < num_counters; i++) {
+		if (counter_mask_available & (BIT(i)))
+			GUEST_ASSERT_EQ(READ_ONCE(snapshot_data->ctr_values[i]), 0);
+	}
+	/* Only these two events are guranteed to be present */
+	test_pmu_event_snapshot(SBI_PMU_HW_CPU_CYCLES);
+	test_pmu_event_snapshot(SBI_PMU_HW_INSTRUCTIONS);
+
+	GUEST_DONE();
+}
+
+static void test_pmu_events_overflow(void)
+{
+	int num_counters = 0, i = 0;
+
+	/* Verify presence of SBI PMU and minimum requrired SBI version */
+	verify_sbi_requirement_assert();
+
+	snapshot_set_shmem(snapshot_gpa, 0);
+	csr_set(CSR_IE, BIT(IRQ_PMU_OVF));
+	local_irq_enable();
+
+	/* Get the counter details */
+	num_counters = get_num_counters();
+	update_counter_info(num_counters);
+
+	/*
+	 * Qemu supports overflow for cycle/instruction.
+	 * This test may fail on any platform that do not support overflow for these two events.
+	 */
+	for (i = 0; i < targs.overflow_irqnum; i++)
+		test_pmu_event_overflow(SBI_PMU_HW_CPU_CYCLES);
+	GUEST_ASSERT_EQ(vcpu_shared_irq_count, targs.overflow_irqnum);
+
+	vcpu_shared_irq_count = 0;
+
+	for (i = 0; i < targs.overflow_irqnum; i++)
+		test_pmu_event_overflow(SBI_PMU_HW_INSTRUCTIONS);
+	GUEST_ASSERT_EQ(vcpu_shared_irq_count, targs.overflow_irqnum);
+
+	GUEST_DONE();
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+	case UCALL_SYNC:
+		break;
+	default:
+		TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		break;
+	}
+}
+
+void test_vm_destroy(struct kvm_vm *vm)
+{
+	memset(ctrinfo_arr, 0, sizeof(union sbi_pmu_ctr_info) * RISCV_MAX_PMU_COUNTERS);
+	counter_mask_available = 0;
+	kvm_vm_free(vm);
+}
+
+static void test_vm_basic_test(void *guest_code)
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	__TEST_REQUIRE(__vcpu_has_sbi_ext(vcpu, KVM_RISCV_SBI_EXT_PMU),
+				   "SBI PMU not available, skipping test");
+	vm_init_vector_tables(vm);
+	/* Illegal instruction handler is required to verify read access without configuration */
+	vm_install_exception_handler(vm, EXC_INST_ILLEGAL, guest_illegal_exception_handler);
+
+	vcpu_init_vector_tables(vcpu);
+	run_vcpu(vcpu);
+
+	test_vm_destroy(vm);
+}
+
+static void test_vm_events_test(void *guest_code)
+{
+	struct kvm_vm *vm = NULL;
+	struct kvm_vcpu *vcpu = NULL;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	__TEST_REQUIRE(__vcpu_has_sbi_ext(vcpu, KVM_RISCV_SBI_EXT_PMU),
+				   "SBI PMU not available, skipping test");
+	run_vcpu(vcpu);
+
+	test_vm_destroy(vm);
+}
+
+static void test_vm_setup_snapshot_mem(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	/* PMU Snapshot requires single page only */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, PMU_SNAPSHOT_GPA_BASE, 1, 1, 0);
+	/* PMU_SNAPSHOT_GPA_BASE is identity mapped */
+	virt_map(vm, PMU_SNAPSHOT_GPA_BASE, PMU_SNAPSHOT_GPA_BASE, 1);
+
+	snapshot_gva = (void *)(PMU_SNAPSHOT_GPA_BASE);
+	snapshot_gpa = addr_gva2gpa(vcpu->vm, (vm_vaddr_t)snapshot_gva);
+	sync_global_to_guest(vcpu->vm, snapshot_gva);
+	sync_global_to_guest(vcpu->vm, snapshot_gpa);
+}
+
+static void test_vm_events_snapshot_test(void *guest_code)
+{
+	struct kvm_vm *vm = NULL;
+	struct kvm_vcpu *vcpu;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	__TEST_REQUIRE(__vcpu_has_sbi_ext(vcpu, KVM_RISCV_SBI_EXT_PMU),
+				   "SBI PMU not available, skipping test");
+
+	test_vm_setup_snapshot_mem(vm, vcpu);
+
+	run_vcpu(vcpu);
+
+	test_vm_destroy(vm);
+}
+
+static void test_vm_events_overflow(void *guest_code)
+{
+	struct kvm_vm *vm = NULL;
+	struct kvm_vcpu *vcpu;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	__TEST_REQUIRE(__vcpu_has_sbi_ext(vcpu, KVM_RISCV_SBI_EXT_PMU),
+				   "SBI PMU not available, skipping test");
+
+	__TEST_REQUIRE(__vcpu_has_isa_ext(vcpu, KVM_RISCV_ISA_EXT_SSCOFPMF),
+				   "Sscofpmf is not available, skipping overflow test");
+
+	test_vm_setup_snapshot_mem(vm, vcpu);
+	vm_init_vector_tables(vm);
+	vm_install_interrupt_handler(vm, guest_irq_handler);
+
+	vcpu_init_vector_tables(vcpu);
+	/* Initialize guest timer frequency. */
+	timer_freq = vcpu_get_reg(vcpu, RISCV_TIMER_REG(frequency));
+
+	/* Export the shared variables to the guest */
+	sync_global_to_guest(vm, timer_freq);
+	sync_global_to_guest(vm, vcpu_shared_irq_count);
+	sync_global_to_guest(vm, targs);
+
+	run_vcpu(vcpu);
+
+	test_vm_destroy(vm);
+}
+
+static void test_print_help(char *name)
+{
+	pr_info("Usage: %s [-h] [-t <test name>] [-n <number of LCOFI interrupt for overflow test>]\n",
+		name);
+	pr_info("\t-t: Test to run (default all). Available tests are 'basic', 'events', 'snapshot', 'overflow'\n");
+	pr_info("\t-n: Number of LCOFI interrupt to trigger for each event in overflow test (default: %d)\n",
+		SBI_PMU_OVERFLOW_IRQNUM_DEFAULT);
+	pr_info("\t-h: print this help screen\n");
+}
+
+static bool parse_args(int argc, char *argv[])
+{
+	int opt;
+	int temp_disabled_tests = SBI_PMU_TEST_BASIC | SBI_PMU_TEST_EVENTS | SBI_PMU_TEST_SNAPSHOT |
+				  SBI_PMU_TEST_OVERFLOW;
+	int overflow_interrupts = 0;
+
+	while ((opt = getopt(argc, argv, "ht:n:")) != -1) {
+		switch (opt) {
+		case 't':
+			if (!strncmp("basic", optarg, 5))
+				temp_disabled_tests &= ~SBI_PMU_TEST_BASIC;
+			else if (!strncmp("events", optarg, 6))
+				temp_disabled_tests &= ~SBI_PMU_TEST_EVENTS;
+			else if (!strncmp("snapshot", optarg, 8))
+				temp_disabled_tests &= ~SBI_PMU_TEST_SNAPSHOT;
+			else if (!strncmp("overflow", optarg, 8))
+				temp_disabled_tests &= ~SBI_PMU_TEST_OVERFLOW;
+			else
+				goto done;
+			targs.disabled_tests = temp_disabled_tests;
+			break;
+		case 'n':
+			overflow_interrupts = atoi_positive("Number of LCOFI", optarg);
+			break;
+		case 'h':
+		default:
+			goto done;
+		}
+	}
+
+	if (overflow_interrupts > 0) {
+		if (targs.disabled_tests & SBI_PMU_TEST_OVERFLOW) {
+			pr_info("-n option is only available for overflow test\n");
+			goto done;
+		} else {
+			targs.overflow_irqnum = overflow_interrupts;
+		}
+	}
+
+	return true;
+done:
+	test_print_help(argv[0]);
+	return false;
+}
+
+int main(int argc, char *argv[])
+{
+	targs.disabled_tests = 0;
+	targs.overflow_irqnum = SBI_PMU_OVERFLOW_IRQNUM_DEFAULT;
+
+	if (!parse_args(argc, argv))
+		exit(KSFT_SKIP);
+
+	if (!(targs.disabled_tests & SBI_PMU_TEST_BASIC)) {
+		test_vm_basic_test(test_pmu_basic_sanity);
+		pr_info("SBI PMU basic test : PASS\n");
+	}
+
+	if (!(targs.disabled_tests & SBI_PMU_TEST_EVENTS)) {
+		test_vm_events_test(test_pmu_events);
+		pr_info("SBI PMU event verification test : PASS\n");
+	}
+
+	if (!(targs.disabled_tests & SBI_PMU_TEST_SNAPSHOT)) {
+		test_vm_events_snapshot_test(test_pmu_events_snaphost);
+		pr_info("SBI PMU event verification with snapshot test : PASS\n");
+	}
+
+	if (!(targs.disabled_tests & SBI_PMU_TEST_OVERFLOW)) {
+		test_vm_events_overflow(test_pmu_events_overflow);
+		pr_info("SBI PMU event verification with overflow test : PASS\n");
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/rseq_test.c b/tools/testing/selftests/kvm/rseq_test.c
new file mode 100644
index 000000000000..1375fca80bcd
--- /dev/null
+++ b/tools/testing/selftests/kvm/rseq_test.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Include rseq.c without _GNU_SOURCE defined, before including any headers, so
+ * that rseq.c is compiled with its configuration, not KVM selftests' config.
+ */
+#undef _GNU_SOURCE
+#include "../rseq/rseq.c"
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+#include <syscall.h>
+#include <sys/ioctl.h>
+#include <sys/sysinfo.h>
+#include <asm/barrier.h>
+#include <linux/atomic.h>
+#include <linux/rseq.h>
+#include <linux/unistd.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+#include "ucall_common.h"
+
+/*
+ * Any bug related to task migration is likely to be timing-dependent; perform
+ * a large number of migrations to reduce the odds of a false negative.
+ */
+#define NR_TASK_MIGRATIONS 100000
+
+static pthread_t migration_thread;
+static cpu_set_t possible_mask;
+static int min_cpu, max_cpu;
+static bool done;
+
+static atomic_t seq_cnt;
+
+static void guest_code(void)
+{
+	for (;;)
+		GUEST_SYNC(0);
+}
+
+static int next_cpu(int cpu)
+{
+	/*
+	 * Advance to the next CPU, skipping those that weren't in the original
+	 * affinity set.  Sadly, there is no CPU_SET_FOR_EACH, and cpu_set_t's
+	 * data storage is considered as opaque.  Note, if this task is pinned
+	 * to a small set of discontigous CPUs, e.g. 2 and 1023, this loop will
+	 * burn a lot cycles and the test will take longer than normal to
+	 * complete.
+	 */
+	do {
+		cpu++;
+		if (cpu > max_cpu) {
+			cpu = min_cpu;
+			TEST_ASSERT(CPU_ISSET(cpu, &possible_mask),
+				    "Min CPU = %d must always be usable", cpu);
+			break;
+		}
+	} while (!CPU_ISSET(cpu, &possible_mask));
+
+	return cpu;
+}
+
+static void *migration_worker(void *__rseq_tid)
+{
+	pid_t rseq_tid = (pid_t)(unsigned long)__rseq_tid;
+	cpu_set_t allowed_mask;
+	int r, i, cpu;
+
+	CPU_ZERO(&allowed_mask);
+
+	for (i = 0, cpu = min_cpu; i < NR_TASK_MIGRATIONS; i++, cpu = next_cpu(cpu)) {
+		CPU_SET(cpu, &allowed_mask);
+
+		/*
+		 * Bump the sequence count twice to allow the reader to detect
+		 * that a migration may have occurred in between rseq and sched
+		 * CPU ID reads.  An odd sequence count indicates a migration
+		 * is in-progress, while a completely different count indicates
+		 * a migration occurred since the count was last read.
+		 */
+		atomic_inc(&seq_cnt);
+
+		/*
+		 * Ensure the odd count is visible while getcpu() isn't
+		 * stable, i.e. while changing affinity is in-progress.
+		 */
+		smp_wmb();
+		r = sched_setaffinity(rseq_tid, sizeof(allowed_mask), &allowed_mask);
+		TEST_ASSERT(!r, "sched_setaffinity failed, errno = %d (%s)",
+			    errno, strerror(errno));
+		smp_wmb();
+		atomic_inc(&seq_cnt);
+
+		CPU_CLR(cpu, &allowed_mask);
+
+		/*
+		 * Wait 1-10us before proceeding to the next iteration and more
+		 * specifically, before bumping seq_cnt again.  A delay is
+		 * needed on three fronts:
+		 *
+		 *  1. To allow sched_setaffinity() to prompt migration before
+		 *     ioctl(KVM_RUN) enters the guest so that TIF_NOTIFY_RESUME
+		 *     (or TIF_NEED_RESCHED, which indirectly leads to handling
+		 *     NOTIFY_RESUME) is handled in KVM context.
+		 *
+		 *     If NOTIFY_RESUME/NEED_RESCHED is set after KVM enters
+		 *     the guest, the guest will trigger a IO/MMIO exit all the
+		 *     way to userspace and the TIF flags will be handled by
+		 *     the generic "exit to userspace" logic, not by KVM.  The
+		 *     exit to userspace is necessary to give the test a chance
+		 *     to check the rseq CPU ID (see #2).
+		 *
+		 *     Alternatively, guest_code() could include an instruction
+		 *     to trigger an exit that is handled by KVM, but any such
+		 *     exit requires architecture specific code.
+		 *
+		 *  2. To let ioctl(KVM_RUN) make its way back to the test
+		 *     before the next round of migration.  The test's check on
+		 *     the rseq CPU ID must wait for migration to complete in
+		 *     order to avoid false positive, thus any kernel rseq bug
+		 *     will be missed if the next migration starts before the
+		 *     check completes.
+		 *
+		 *  3. To ensure the read-side makes efficient forward progress,
+		 *     e.g. if getcpu() involves a syscall. Stalling the read-side
+		 *     means the test will spend more time waiting for getcpu()
+		 *     to stabilize and less time trying to hit the timing-dependent
+		 *     bug.
+		 *
+		 * Because any bug in this area is likely to be timing-dependent,
+		 * run with a range of delays at 1us intervals from 1us to 10us
+		 * as a best effort to avoid tuning the test to the point where
+		 * it can hit _only_ the original bug and not detect future
+		 * regressions.
+		 *
+		 * The original bug can reproduce with a delay up to ~500us on
+		 * x86-64, but starts to require more iterations to reproduce
+		 * as the delay creeps above ~10us, and the average runtime of
+		 * each iteration obviously increases as well.  Cap the delay
+		 * at 10us to keep test runtime reasonable while minimizing
+		 * potential coverage loss.
+		 *
+		 * The lower bound for reproducing the bug is likely below 1us,
+		 * e.g. failures occur on x86-64 with nanosleep(0), but at that
+		 * point the overhead of the syscall likely dominates the delay.
+		 * Use usleep() for simplicity and to avoid unnecessary kernel
+		 * dependencies.
+		 */
+		usleep((i % 10) + 1);
+	}
+	done = true;
+	return NULL;
+}
+
+static void calc_min_max_cpu(void)
+{
+	int i, cnt, nproc;
+
+	TEST_REQUIRE(CPU_COUNT(&possible_mask) >= 2);
+
+	/*
+	 * CPU_SET doesn't provide a FOR_EACH helper, get the min/max CPU that
+	 * this task is affined to in order to reduce the time spent querying
+	 * unusable CPUs, e.g. if this task is pinned to a small percentage of
+	 * total CPUs.
+	 */
+	nproc = get_nprocs_conf();
+	min_cpu = -1;
+	max_cpu = -1;
+	cnt = 0;
+
+	for (i = 0; i < nproc; i++) {
+		if (!CPU_ISSET(i, &possible_mask))
+			continue;
+		if (min_cpu == -1)
+			min_cpu = i;
+		max_cpu = i;
+		cnt++;
+	}
+
+	__TEST_REQUIRE(cnt >= 2,
+		       "Only one usable CPU, task migration not possible");
+}
+
+static void help(const char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-u] [-l latency]\n", name);
+	printf(" -u: Don't sanity check the number of successful KVM_RUNs\n");
+	printf(" -l: Set /dev/cpu_dma_latency to suppress deep sleep states\n");
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	int r, i, snapshot, opt, fd = -1, latency = -1;
+	bool skip_sanity_check = false;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	u32 cpu, rseq_cpu;
+
+	while ((opt = getopt(argc, argv, "hl:u")) != -1) {
+		switch (opt) {
+		case 'u':
+			skip_sanity_check = true;
+		case 'l':
+			latency = atoi_paranoid(optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	r = sched_getaffinity(0, sizeof(possible_mask), &possible_mask);
+	TEST_ASSERT(!r, "sched_getaffinity failed, errno = %d (%s)", errno,
+		    strerror(errno));
+
+	calc_min_max_cpu();
+
+	r = rseq_register_current_thread();
+	TEST_ASSERT(!r, "rseq_register_current_thread failed, errno = %d (%s)",
+		    errno, strerror(errno));
+
+	/*
+	 * Create and run a dummy VM that immediately exits to userspace via
+	 * GUEST_SYNC, while concurrently migrating the process by setting its
+	 * CPU affinity.
+	 */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	pthread_create(&migration_thread, NULL, migration_worker,
+		       (void *)(unsigned long)syscall(SYS_gettid));
+
+	if (latency >= 0) {
+		/*
+		 * Writes to cpu_dma_latency persist only while the file is
+		 * open, i.e. it allows userspace to provide guaranteed latency
+		 * while running a workload.  Keep the file open until the test
+		 * completes, otherwise writing cpu_dma_latency is meaningless.
+		 */
+		fd = open("/dev/cpu_dma_latency", O_RDWR);
+		TEST_ASSERT(fd >= 0, __KVM_SYSCALL_ERROR("open() /dev/cpu_dma_latency", fd));
+
+		r = write(fd, &latency, 4);
+		TEST_ASSERT(r >= 1, "Error setting /dev/cpu_dma_latency");
+	}
+
+	for (i = 0; !done; i++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT(get_ucall(vcpu, NULL) == UCALL_SYNC,
+			    "Guest failed?");
+
+		/*
+		 * Verify rseq's CPU matches sched's CPU.  Ensure migration
+		 * doesn't occur between getcpu() and reading the rseq cpu_id
+		 * by rereading both if the sequence count changes, or if the
+		 * count is odd (migration in-progress).
+		 */
+		do {
+			/*
+			 * Drop bit 0 to force a mismatch if the count is odd,
+			 * i.e. if a migration is in-progress.
+			 */
+			snapshot = atomic_read(&seq_cnt) & ~1;
+
+			/*
+			 * Ensure calling getcpu() and reading rseq.cpu_id complete
+			 * in a single "no migration" window, i.e. are not reordered
+			 * across the seq_cnt reads.
+			 */
+			smp_rmb();
+			r = sys_getcpu(&cpu, NULL);
+			TEST_ASSERT(!r, "getcpu failed, errno = %d (%s)",
+				    errno, strerror(errno));
+			rseq_cpu = rseq_current_cpu_raw();
+			smp_rmb();
+		} while (snapshot != atomic_read(&seq_cnt));
+
+		TEST_ASSERT(rseq_cpu == cpu,
+			    "rseq CPU = %d, sched CPU = %d", rseq_cpu, cpu);
+	}
+
+	if (fd > 0)
+		close(fd);
+
+	/*
+	 * Sanity check that the test was able to enter the guest a reasonable
+	 * number of times, e.g. didn't get stalled too often/long waiting for
+	 * getcpu() to stabilize.  A 2:1 migration:KVM_RUN ratio is a fairly
+	 * conservative ratio on x86-64, which can do _more_ KVM_RUNs than
+	 * migrations given the 1us+ delay in the migration task.
+	 *
+	 * Another reason why it may have small migration:KVM_RUN ratio is that,
+	 * on systems with large low power mode wakeup latency, it may happen
+	 * quite often that the scheduler is not able to wake up the target CPU
+	 * before the vCPU thread is scheduled to another CPU.
+	 */
+	TEST_ASSERT(skip_sanity_check || i > (NR_TASK_MIGRATIONS / 2),
+		    "Only performed %d KVM_RUNs, task stalled too much?\n\n"
+		    "  Try disabling deep sleep states to reduce CPU wakeup latency,\n"
+		    "  e.g. via cpuidle.off=1 or via -l <latency>, or run with -u to\n"
+		    "  disable this sanity check.", i);
+
+	pthread_join(migration_thread, NULL);
+
+	kvm_vm_free(vm);
+
+	rseq_unregister_current_thread();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/s390/cmma_test.c b/tools/testing/selftests/kvm/s390/cmma_test.c
new file mode 100644
index 000000000000..e39a724fe860
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/cmma_test.c
@@ -0,0 +1,695 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test for s390x CMMA migration
+ *
+ * Copyright IBM Corp. 2023
+ *
+ * Authors:
+ *  Nico Boehr <nrb@linux.ibm.com>
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "kselftest.h"
+#include "ucall_common.h"
+#include "processor.h"
+
+#define MAIN_PAGE_COUNT 512
+
+#define TEST_DATA_PAGE_COUNT 512
+#define TEST_DATA_MEMSLOT 1
+#define TEST_DATA_START_GFN PAGE_SIZE
+
+#define TEST_DATA_TWO_PAGE_COUNT 256
+#define TEST_DATA_TWO_MEMSLOT 2
+#define TEST_DATA_TWO_START_GFN (2 * PAGE_SIZE)
+
+static char cmma_value_buf[MAIN_PAGE_COUNT + TEST_DATA_PAGE_COUNT];
+
+/**
+ * Dirty CMMA attributes of exactly one page in the TEST_DATA memslot,
+ * so use_cmma goes on and the CMMA related ioctls do something.
+ */
+static void guest_do_one_essa(void)
+{
+	asm volatile(
+		/* load TEST_DATA_START_GFN into r1 */
+		"	llilf 1,%[start_gfn]\n"
+		/* calculate the address from the gfn */
+		"	sllg 1,1,12(0)\n"
+		/* set the first page in TEST_DATA memslot to STABLE */
+		"	.insn rrf,0xb9ab0000,2,1,1,0\n"
+		/* hypercall */
+		"	diag 0,0,0x501\n"
+		"0:	j 0b"
+		:
+		: [start_gfn] "L"(TEST_DATA_START_GFN)
+		: "r1", "r2", "memory", "cc"
+	);
+}
+
+/**
+ * Touch CMMA attributes of all pages in TEST_DATA memslot. Set them to stable
+ * state.
+ */
+static void guest_dirty_test_data(void)
+{
+	asm volatile(
+		/* r1 = TEST_DATA_START_GFN */
+		"	xgr 1,1\n"
+		"	llilf 1,%[start_gfn]\n"
+		/* r5 = TEST_DATA_PAGE_COUNT */
+		"	lghi 5,%[page_count]\n"
+		/* r5 += r1 */
+		"2:	agfr 5,1\n"
+		/* r2 = r1 << PAGE_SHIFT */
+		"1:	sllg 2,1,12(0)\n"
+		/* essa(r4, r2, SET_STABLE) */
+		"	.insn rrf,0xb9ab0000,4,2,1,0\n"
+		/* i++ */
+		"	agfi 1,1\n"
+		/* if r1 < r5 goto 1 */
+		"	cgrjl 1,5,1b\n"
+		/* hypercall */
+		"	diag 0,0,0x501\n"
+		"0:	j 0b"
+		:
+		: [start_gfn] "L"(TEST_DATA_START_GFN),
+		  [page_count] "L"(TEST_DATA_PAGE_COUNT)
+		:
+			/* the counter in our loop over the pages */
+			"r1",
+			/* the calculated page physical address */
+			"r2",
+			/* ESSA output register */
+			"r4",
+			/* last page */
+			"r5",
+			"cc", "memory"
+	);
+}
+
+static void create_main_memslot(struct kvm_vm *vm)
+{
+	int i;
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, 0, 0, MAIN_PAGE_COUNT, 0);
+	/* set the array of memslots to zero like __vm_create does */
+	for (i = 0; i < NR_MEM_REGIONS; i++)
+		vm->memslots[i] = 0;
+}
+
+static void create_test_memslot(struct kvm_vm *vm)
+{
+	vm_userspace_mem_region_add(vm,
+				    VM_MEM_SRC_ANONYMOUS,
+				    TEST_DATA_START_GFN << vm->page_shift,
+				    TEST_DATA_MEMSLOT,
+				    TEST_DATA_PAGE_COUNT,
+				    0
+				   );
+	vm->memslots[MEM_REGION_TEST_DATA] = TEST_DATA_MEMSLOT;
+}
+
+static void create_memslots(struct kvm_vm *vm)
+{
+	/*
+	 * Our VM has the following memory layout:
+	 * +------+---------------------------+
+	 * | GFN  | Memslot                   |
+	 * +------+---------------------------+
+	 * | 0    |                           |
+	 * | ...  | MAIN (Code, Stack, ...)   |
+	 * | 511  |                           |
+	 * +------+---------------------------+
+	 * | 4096 |                           |
+	 * | ...  | TEST_DATA                 |
+	 * | 4607 |                           |
+	 * +------+---------------------------+
+	 */
+	create_main_memslot(vm);
+	create_test_memslot(vm);
+}
+
+static void finish_vm_setup(struct kvm_vm *vm)
+{
+	struct userspace_mem_region *slot0;
+
+	kvm_vm_elf_load(vm, program_invocation_name);
+
+	slot0 = memslot2region(vm, 0);
+	ucall_init(vm, slot0->region.guest_phys_addr + slot0->region.memory_size);
+
+	kvm_arch_vm_post_create(vm, 0);
+}
+
+static struct kvm_vm *create_vm_two_memslots(void)
+{
+	struct kvm_vm *vm;
+
+	vm = vm_create_barebones();
+
+	create_memslots(vm);
+
+	finish_vm_setup(vm);
+
+	return vm;
+}
+
+static void enable_cmma(struct kvm_vm *vm)
+{
+	int r;
+
+	r = __kvm_device_attr_set(vm->fd, KVM_S390_VM_MEM_CTRL, KVM_S390_VM_MEM_ENABLE_CMMA, NULL);
+	TEST_ASSERT(!r, "enabling cmma failed r=%d errno=%d", r, errno);
+}
+
+static void enable_dirty_tracking(struct kvm_vm *vm)
+{
+	vm_mem_region_set_flags(vm, 0, KVM_MEM_LOG_DIRTY_PAGES);
+	vm_mem_region_set_flags(vm, TEST_DATA_MEMSLOT, KVM_MEM_LOG_DIRTY_PAGES);
+}
+
+static int __enable_migration_mode(struct kvm_vm *vm)
+{
+	return __kvm_device_attr_set(vm->fd,
+				     KVM_S390_VM_MIGRATION,
+				     KVM_S390_VM_MIGRATION_START,
+				     NULL
+				    );
+}
+
+static void enable_migration_mode(struct kvm_vm *vm)
+{
+	int r = __enable_migration_mode(vm);
+
+	TEST_ASSERT(!r, "enabling migration mode failed r=%d errno=%d", r, errno);
+}
+
+static bool is_migration_mode_on(struct kvm_vm *vm)
+{
+	u64 out;
+	int r;
+
+	r = __kvm_device_attr_get(vm->fd,
+				  KVM_S390_VM_MIGRATION,
+				  KVM_S390_VM_MIGRATION_STATUS,
+				  &out
+				 );
+	TEST_ASSERT(!r, "getting migration mode status failed r=%d errno=%d", r, errno);
+	return out;
+}
+
+static int vm_get_cmma_bits(struct kvm_vm *vm, u64 flags, int *errno_out)
+{
+	struct kvm_s390_cmma_log args;
+	int rc;
+
+	errno = 0;
+
+	args = (struct kvm_s390_cmma_log){
+		.start_gfn = 0,
+		.count = sizeof(cmma_value_buf),
+		.flags = flags,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	rc = __vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, &args);
+
+	*errno_out = errno;
+	return rc;
+}
+
+static void test_get_cmma_basic(void)
+{
+	struct kvm_vm *vm = create_vm_two_memslots();
+	struct kvm_vcpu *vcpu;
+	int rc, errno_out;
+
+	/* GET_CMMA_BITS without CMMA enabled should fail */
+	rc = vm_get_cmma_bits(vm, 0, &errno_out);
+	TEST_ASSERT_EQ(rc, -1);
+	TEST_ASSERT_EQ(errno_out, ENXIO);
+
+	enable_cmma(vm);
+	vcpu = vm_vcpu_add(vm, 1, guest_do_one_essa);
+
+	vcpu_run(vcpu);
+
+	/* GET_CMMA_BITS without migration mode and without peeking should fail */
+	rc = vm_get_cmma_bits(vm, 0, &errno_out);
+	TEST_ASSERT_EQ(rc, -1);
+	TEST_ASSERT_EQ(errno_out, EINVAL);
+
+	/* GET_CMMA_BITS without migration mode and with peeking should work */
+	rc = vm_get_cmma_bits(vm, KVM_S390_CMMA_PEEK, &errno_out);
+	TEST_ASSERT_EQ(rc, 0);
+	TEST_ASSERT_EQ(errno_out, 0);
+
+	enable_dirty_tracking(vm);
+	enable_migration_mode(vm);
+
+	/* GET_CMMA_BITS with invalid flags */
+	rc = vm_get_cmma_bits(vm, 0xfeedc0fe, &errno_out);
+	TEST_ASSERT_EQ(rc, -1);
+	TEST_ASSERT_EQ(errno_out, EINVAL);
+
+	kvm_vm_free(vm);
+}
+
+static void assert_exit_was_hypercall(struct kvm_vcpu *vcpu)
+{
+	TEST_ASSERT_EQ(vcpu->run->exit_reason, 13);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, 4);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0x8300);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipb, 0x5010000);
+}
+
+static void test_migration_mode(void)
+{
+	struct kvm_vm *vm = vm_create_barebones();
+	struct kvm_vcpu *vcpu;
+	u64 orig_psw;
+	int rc;
+
+	/* enabling migration mode on a VM without memory should fail */
+	rc = __enable_migration_mode(vm);
+	TEST_ASSERT_EQ(rc, -1);
+	TEST_ASSERT_EQ(errno, EINVAL);
+	TEST_ASSERT(!is_migration_mode_on(vm), "migration mode should still be off");
+	errno = 0;
+
+	create_memslots(vm);
+	finish_vm_setup(vm);
+
+	enable_cmma(vm);
+	vcpu = vm_vcpu_add(vm, 1, guest_do_one_essa);
+	orig_psw = vcpu->run->psw_addr;
+
+	/*
+	 * Execute one essa instruction in the guest. Otherwise the guest will
+	 * not have use_cmm enabled and GET_CMMA_BITS will return no pages.
+	 */
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	/* migration mode when memslots have dirty tracking off should fail */
+	rc = __enable_migration_mode(vm);
+	TEST_ASSERT_EQ(rc, -1);
+	TEST_ASSERT_EQ(errno, EINVAL);
+	TEST_ASSERT(!is_migration_mode_on(vm), "migration mode should still be off");
+	errno = 0;
+
+	/* enable dirty tracking */
+	enable_dirty_tracking(vm);
+
+	/* enabling migration mode should work now */
+	rc = __enable_migration_mode(vm);
+	TEST_ASSERT_EQ(rc, 0);
+	TEST_ASSERT(is_migration_mode_on(vm), "migration mode should be on");
+	errno = 0;
+
+	/* execute another ESSA instruction to see this goes fine */
+	vcpu->run->psw_addr = orig_psw;
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	/*
+	 * With migration mode on, create a new memslot with dirty tracking off.
+	 * This should turn off migration mode.
+	 */
+	TEST_ASSERT(is_migration_mode_on(vm), "migration mode should be on");
+	vm_userspace_mem_region_add(vm,
+				    VM_MEM_SRC_ANONYMOUS,
+				    TEST_DATA_TWO_START_GFN << vm->page_shift,
+				    TEST_DATA_TWO_MEMSLOT,
+				    TEST_DATA_TWO_PAGE_COUNT,
+				    0
+				   );
+	TEST_ASSERT(!is_migration_mode_on(vm),
+		    "creating memslot without dirty tracking turns off migration mode"
+		   );
+
+	/* ESSA instructions should still execute fine */
+	vcpu->run->psw_addr = orig_psw;
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	/*
+	 * Turn on dirty tracking on the new memslot.
+	 * It should be possible to turn migration mode back on again.
+	 */
+	vm_mem_region_set_flags(vm, TEST_DATA_TWO_MEMSLOT, KVM_MEM_LOG_DIRTY_PAGES);
+	rc = __enable_migration_mode(vm);
+	TEST_ASSERT_EQ(rc, 0);
+	TEST_ASSERT(is_migration_mode_on(vm), "migration mode should be on");
+	errno = 0;
+
+	/*
+	 * Turn off dirty tracking again, this time with just a flag change.
+	 * Again, migration mode should turn off.
+	 */
+	TEST_ASSERT(is_migration_mode_on(vm), "migration mode should be on");
+	vm_mem_region_set_flags(vm, TEST_DATA_TWO_MEMSLOT, 0);
+	TEST_ASSERT(!is_migration_mode_on(vm),
+		    "disabling dirty tracking should turn off migration mode"
+		   );
+
+	/* ESSA instructions should still execute fine */
+	vcpu->run->psw_addr = orig_psw;
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+/**
+ * Given a VM with the MAIN and TEST_DATA memslot, assert that both slots have
+ * CMMA attributes of all pages in both memslots and nothing more dirty.
+ * This has the useful side effect of ensuring nothing is CMMA dirty after this
+ * function.
+ */
+static void assert_all_slots_cmma_dirty(struct kvm_vm *vm)
+{
+	struct kvm_s390_cmma_log args;
+
+	/*
+	 * First iteration - everything should be dirty.
+	 * Start at the main memslot...
+	 */
+	args = (struct kvm_s390_cmma_log){
+		.start_gfn = 0,
+		.count = sizeof(cmma_value_buf),
+		.flags = 0,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	memset(cmma_value_buf, 0xff, sizeof(cmma_value_buf));
+	vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, &args);
+	TEST_ASSERT_EQ(args.count, MAIN_PAGE_COUNT);
+	TEST_ASSERT_EQ(args.remaining, TEST_DATA_PAGE_COUNT);
+	TEST_ASSERT_EQ(args.start_gfn, 0);
+
+	/* ...and then - after a hole - the TEST_DATA memslot should follow */
+	args = (struct kvm_s390_cmma_log){
+		.start_gfn = MAIN_PAGE_COUNT,
+		.count = sizeof(cmma_value_buf),
+		.flags = 0,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	memset(cmma_value_buf, 0xff, sizeof(cmma_value_buf));
+	vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, &args);
+	TEST_ASSERT_EQ(args.count, TEST_DATA_PAGE_COUNT);
+	TEST_ASSERT_EQ(args.start_gfn, TEST_DATA_START_GFN);
+	TEST_ASSERT_EQ(args.remaining, 0);
+
+	/* ...and nothing else should be there */
+	args = (struct kvm_s390_cmma_log){
+		.start_gfn = TEST_DATA_START_GFN + TEST_DATA_PAGE_COUNT,
+		.count = sizeof(cmma_value_buf),
+		.flags = 0,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	memset(cmma_value_buf, 0xff, sizeof(cmma_value_buf));
+	vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, &args);
+	TEST_ASSERT_EQ(args.count, 0);
+	TEST_ASSERT_EQ(args.start_gfn, 0);
+	TEST_ASSERT_EQ(args.remaining, 0);
+}
+
+/**
+ * Given a VM, assert no pages are CMMA dirty.
+ */
+static void assert_no_pages_cmma_dirty(struct kvm_vm *vm)
+{
+	struct kvm_s390_cmma_log args;
+
+	/* If we start from GFN 0 again, nothing should be dirty. */
+	args = (struct kvm_s390_cmma_log){
+		.start_gfn = 0,
+		.count = sizeof(cmma_value_buf),
+		.flags = 0,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	memset(cmma_value_buf, 0xff, sizeof(cmma_value_buf));
+	vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, &args);
+	if (args.count || args.remaining || args.start_gfn)
+		TEST_FAIL("pages are still dirty start_gfn=0x%llx count=%u remaining=%llu",
+			  args.start_gfn,
+			  args.count,
+			  args.remaining
+			 );
+}
+
+static void test_get_initial_dirty(void)
+{
+	struct kvm_vm *vm = create_vm_two_memslots();
+	struct kvm_vcpu *vcpu;
+
+	enable_cmma(vm);
+	vcpu = vm_vcpu_add(vm, 1, guest_do_one_essa);
+
+	/*
+	 * Execute one essa instruction in the guest. Otherwise the guest will
+	 * not have use_cmm enabled and GET_CMMA_BITS will return no pages.
+	 */
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	enable_dirty_tracking(vm);
+	enable_migration_mode(vm);
+
+	assert_all_slots_cmma_dirty(vm);
+
+	/* Start from the beginning again and make sure nothing else is dirty */
+	assert_no_pages_cmma_dirty(vm);
+
+	kvm_vm_free(vm);
+}
+
+static void query_cmma_range(struct kvm_vm *vm,
+			     u64 start_gfn, u64 gfn_count,
+			     struct kvm_s390_cmma_log *res_out)
+{
+	*res_out = (struct kvm_s390_cmma_log){
+		.start_gfn = start_gfn,
+		.count = gfn_count,
+		.flags = 0,
+		.values = (__u64)&cmma_value_buf[0]
+	};
+	memset(cmma_value_buf, 0xff, sizeof(cmma_value_buf));
+	vm_ioctl(vm, KVM_S390_GET_CMMA_BITS, res_out);
+}
+
+/**
+ * Assert the given cmma_log struct that was executed by query_cmma_range()
+ * indicates the first dirty gfn is at first_dirty_gfn and contains exactly
+ * dirty_gfn_count CMMA values.
+ */
+static void assert_cmma_dirty(u64 first_dirty_gfn,
+			      u64 dirty_gfn_count,
+			      const struct kvm_s390_cmma_log *res)
+{
+	TEST_ASSERT_EQ(res->start_gfn, first_dirty_gfn);
+	TEST_ASSERT_EQ(res->count, dirty_gfn_count);
+	for (size_t i = 0; i < dirty_gfn_count; i++)
+		TEST_ASSERT_EQ(cmma_value_buf[0], 0x0); /* stable state */
+	TEST_ASSERT_EQ(cmma_value_buf[dirty_gfn_count], 0xff); /* not touched */
+}
+
+static void test_get_skip_holes(void)
+{
+	size_t gfn_offset;
+	struct kvm_vm *vm = create_vm_two_memslots();
+	struct kvm_s390_cmma_log log;
+	struct kvm_vcpu *vcpu;
+	u64 orig_psw;
+
+	enable_cmma(vm);
+	vcpu = vm_vcpu_add(vm, 1, guest_dirty_test_data);
+
+	orig_psw = vcpu->run->psw_addr;
+
+	/*
+	 * Execute some essa instructions in the guest. Otherwise the guest will
+	 * not have use_cmm enabled and GET_CMMA_BITS will return no pages.
+	 */
+	vcpu_run(vcpu);
+	assert_exit_was_hypercall(vcpu);
+
+	enable_dirty_tracking(vm);
+	enable_migration_mode(vm);
+
+	/* un-dirty all pages */
+	assert_all_slots_cmma_dirty(vm);
+
+	/* Then, dirty just the TEST_DATA memslot */
+	vcpu->run->psw_addr = orig_psw;
+	vcpu_run(vcpu);
+
+	gfn_offset = TEST_DATA_START_GFN;
+	/**
+	 * Query CMMA attributes of one page, starting at page 0. Since the
+	 * main memslot was not touched by the VM, this should yield the first
+	 * page of the TEST_DATA memslot.
+	 * The dirty bitmap should now look like this:
+	 * 0: not dirty
+	 * [0x1, 0x200): dirty
+	 */
+	query_cmma_range(vm, 0, 1, &log);
+	assert_cmma_dirty(gfn_offset, 1, &log);
+	gfn_offset++;
+
+	/**
+	 * Query CMMA attributes of 32 (0x20) pages past the end of the TEST_DATA
+	 * memslot. This should wrap back to the beginning of the TEST_DATA
+	 * memslot, page 1.
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x21): not dirty
+	 * [0x21, 0x200): dirty
+	 */
+	query_cmma_range(vm, TEST_DATA_START_GFN + TEST_DATA_PAGE_COUNT, 0x20, &log);
+	assert_cmma_dirty(gfn_offset, 0x20, &log);
+	gfn_offset += 0x20;
+
+	/* Skip 32 pages */
+	gfn_offset += 0x20;
+
+	/**
+	 * After skipping 32 pages, query the next 32 (0x20) pages.
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x21): not dirty
+	 * [0x21, 0x41): dirty
+	 * [0x41, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	query_cmma_range(vm, gfn_offset, 0x20, &log);
+	assert_cmma_dirty(gfn_offset, 0x20, &log);
+	gfn_offset += 0x20;
+
+	/**
+	 * Query 1 page from the beginning of the TEST_DATA memslot. This should
+	 * yield page 0x21.
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x22): not dirty
+	 * [0x22, 0x41): dirty
+	 * [0x41, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	query_cmma_range(vm, TEST_DATA_START_GFN, 1, &log);
+	assert_cmma_dirty(TEST_DATA_START_GFN + 0x21, 1, &log);
+	gfn_offset++;
+
+	/**
+	 * Query 15 (0xF) pages from page 0x23 in TEST_DATA memslot.
+	 * This should yield pages [0x23, 0x33).
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x22): not dirty
+	 * 0x22: dirty
+	 * [0x23, 0x33): not dirty
+	 * [0x33, 0x41): dirty
+	 * [0x41, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	gfn_offset = TEST_DATA_START_GFN + 0x23;
+	query_cmma_range(vm, gfn_offset, 15, &log);
+	assert_cmma_dirty(gfn_offset, 15, &log);
+
+	/**
+	 * Query 17 (0x11) pages from page 0x22 in TEST_DATA memslot.
+	 * This should yield page [0x22, 0x33)
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x33): not dirty
+	 * [0x33, 0x41): dirty
+	 * [0x41, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	gfn_offset = TEST_DATA_START_GFN + 0x22;
+	query_cmma_range(vm, gfn_offset, 17, &log);
+	assert_cmma_dirty(gfn_offset, 17, &log);
+
+	/**
+	 * Query 25 (0x19) pages from page 0x40 in TEST_DATA memslot.
+	 * This should yield page 0x40 and nothing more, since there are more
+	 * than 16 non-dirty pages after page 0x40.
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x33): not dirty
+	 * [0x33, 0x40): dirty
+	 * [0x40, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	gfn_offset = TEST_DATA_START_GFN + 0x40;
+	query_cmma_range(vm, gfn_offset, 25, &log);
+	assert_cmma_dirty(gfn_offset, 1, &log);
+
+	/**
+	 * Query pages [0x33, 0x40).
+	 * The dirty bitmap should now look like this:
+	 * [0, 0x61): not dirty
+	 * [0x61, 0x200): dirty
+	 */
+	gfn_offset = TEST_DATA_START_GFN + 0x33;
+	query_cmma_range(vm, gfn_offset, 0x40 - 0x33, &log);
+	assert_cmma_dirty(gfn_offset, 0x40 - 0x33, &log);
+
+	/**
+	 * Query the remaining pages [0x61, 0x200).
+	 */
+	gfn_offset = TEST_DATA_START_GFN;
+	query_cmma_range(vm, gfn_offset, TEST_DATA_PAGE_COUNT - 0x61, &log);
+	assert_cmma_dirty(TEST_DATA_START_GFN + 0x61, TEST_DATA_PAGE_COUNT - 0x61, &log);
+
+	assert_no_pages_cmma_dirty(vm);
+}
+
+struct testdef {
+	const char *name;
+	void (*test)(void);
+} testlist[] = {
+	{ "migration mode and dirty tracking", test_migration_mode },
+	{ "GET_CMMA_BITS: basic calls", test_get_cmma_basic },
+	{ "GET_CMMA_BITS: all pages are dirty initially", test_get_initial_dirty },
+	{ "GET_CMMA_BITS: holes are skipped", test_get_skip_holes },
+};
+
+/**
+ * The kernel may support CMMA, but the machine may not (i.e. if running as
+ * guest-3).
+ *
+ * In this case, the CMMA capabilities are all there, but the CMMA-related
+ * ioctls fail. To find out whether the machine supports CMMA, create a
+ * temporary VM and then query the CMMA feature of the VM.
+ */
+static int machine_has_cmma(void)
+{
+	struct kvm_vm *vm = vm_create_barebones();
+	int r;
+
+	r = !__kvm_has_device_attr(vm->fd, KVM_S390_VM_MEM_CTRL, KVM_S390_VM_MEM_ENABLE_CMMA);
+	kvm_vm_free(vm);
+
+	return r;
+}
+
+int main(int argc, char *argv[])
+{
+	int idx;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SYNC_REGS));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_CMMA_MIGRATION));
+	TEST_REQUIRE(machine_has_cmma());
+
+	ksft_print_header();
+
+	ksft_set_plan(ARRAY_SIZE(testlist));
+
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		testlist[idx].test();
+		ksft_test_result_pass("%s\n", testlist[idx].name);
+	}
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/s390/config b/tools/testing/selftests/kvm/s390/config
new file mode 100644
index 000000000000..23270f2d679f
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/config
@@ -0,0 +1,2 @@
+CONFIG_KVM=y
+CONFIG_KVM_S390_UCONTROL=y
diff --git a/tools/testing/selftests/kvm/s390/cpumodel_subfuncs_test.c b/tools/testing/selftests/kvm/s390/cpumodel_subfuncs_test.c
new file mode 100644
index 000000000000..aded795d42be
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/cpumodel_subfuncs_test.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ *  Hariharan Mari <hari55@linux.ibm.com>
+ *
+ * The tests compare the result of the KVM ioctl for obtaining CPU subfunction data with those
+ * from an ASM block performing the same CPU subfunction. Currently KVM doesn't mask instruction
+ * query data reported via the CPU Model, allowing us to directly compare it with the data
+ * acquired through executing the queries in the test.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include "facility.h"
+
+#include "kvm_util.h"
+
+#define PLO_FUNCTION_MAX 256
+
+/* Query available CPU subfunctions */
+struct kvm_s390_vm_cpu_subfunc cpu_subfunc;
+
+static void get_cpu_machine_subfuntions(struct kvm_vm *vm,
+					struct kvm_s390_vm_cpu_subfunc *cpu_subfunc)
+{
+	int r;
+
+	r = __kvm_device_attr_get(vm->fd, KVM_S390_VM_CPU_MODEL,
+				  KVM_S390_VM_CPU_MACHINE_SUBFUNC, cpu_subfunc);
+
+	TEST_ASSERT(!r, "Get cpu subfunctions failed r=%d errno=%d", r, errno);
+}
+
+static inline int plo_test_bit(unsigned char nr)
+{
+	unsigned long function = nr | 0x100;
+	int cc;
+
+	asm volatile("	lgr	0,%[function]\n"
+			/* Parameter registers are ignored for "test bit" */
+			"	plo	0,0,0,0(0)\n"
+			"	ipm	%0\n"
+			"	srl	%0,28\n"
+			: "=d" (cc)
+			: [function] "d" (function)
+			: "cc", "0");
+	return cc == 0;
+}
+
+/* Testing Perform Locked Operation (PLO) CPU subfunction's ASM block */
+static void test_plo_asm_block(u8 (*query)[32])
+{
+	for (int i = 0; i < PLO_FUNCTION_MAX; ++i) {
+		if (plo_test_bit(i))
+			(*query)[i >> 3] |= 0x80 >> (i & 7);
+	}
+}
+
+/* Testing Crypto Compute Message Authentication Code (KMAC) CPU subfunction's ASM block */
+static void test_kmac_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb91e0000,0,2\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message with Chaining (KMC) CPU subfunction's ASM block */
+static void test_kmc_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb92f0000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message (KM) CPU subfunction's ASM block */
+static void test_km_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb92e0000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Compute Intermediate Message Digest (KIMD) CPU subfunction's ASM block */
+static void test_kimd_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb93e0000,0,2\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Compute Last Message Digest (KLMD) CPU subfunction's ASM block */
+static void test_klmd_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb93f0000,0,2\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message with Counter (KMCTR) CPU subfunction's ASM block */
+static void test_kmctr_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rrf,0xb92d0000,2,4,6,0\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message with Cipher Feedback (KMF) CPU subfunction's ASM block */
+static void test_kmf_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb92a0000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message with Output Feedback (KMO) CPU subfunction's ASM block */
+static void test_kmo_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb92b0000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Perform Cryptographic Computation (PCC) CPU subfunction's ASM block */
+static void test_pcc_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb92c0000,0,0\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Perform Random Number Operation (PRNO) CPU subfunction's ASM block */
+static void test_prno_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb93c0000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Cipher Message with Authentication (KMA) CPU subfunction's ASM block */
+static void test_kma_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rrf,0xb9290000,2,4,6,0\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Crypto Compute Digital Signature Authentication (KDSA) CPU subfunction's ASM block */
+static void test_kdsa_asm_block(u8 (*query)[16])
+{
+	asm volatile("	la	%%r1,%[query]\n"
+			"	xgr	%%r0,%%r0\n"
+			"	.insn	rre,0xb93a0000,0,2\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "r0", "r1");
+}
+
+/* Testing Sort Lists (SORTL) CPU subfunction's ASM block */
+static void test_sortl_asm_block(u8 (*query)[32])
+{
+	asm volatile("	lghi	0,0\n"
+			"	la	1,%[query]\n"
+			"	.insn	rre,0xb9380000,2,4\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "0", "1");
+}
+
+/* Testing Deflate Conversion Call (DFLTCC) CPU subfunction's ASM block */
+static void test_dfltcc_asm_block(u8 (*query)[32])
+{
+	asm volatile("	lghi	0,0\n"
+			"	la	1,%[query]\n"
+			"	.insn	rrf,0xb9390000,2,4,6,0\n"
+			: [query] "=R" (*query)
+			:
+			: "cc", "0", "1");
+}
+
+/*
+ * Testing Perform Function with Concurrent Results (PFCR)
+ * CPU subfunctions's ASM block
+ */
+static void test_pfcr_asm_block(u8 (*query)[16])
+{
+	asm volatile("	lghi	0,0\n"
+			"	.insn   rsy,0xeb0000000016,0,0,%[query]\n"
+			: [query] "=QS" (*query)
+			:
+			: "cc", "0");
+}
+
+typedef void (*testfunc_t)(u8 (*array)[]);
+
+struct testdef {
+	const char *subfunc_name;
+	u8 *subfunc_array;
+	size_t array_size;
+	testfunc_t test;
+	int facility_bit;
+} testlist[] = {
+	/*
+	 * PLO was introduced in the very first 64-bit machine generation.
+	 * Hence it is assumed PLO is always installed in Z Arch.
+	 */
+	{ "PLO", cpu_subfunc.plo, sizeof(cpu_subfunc.plo), test_plo_asm_block, 1 },
+	/* MSA - Facility bit 17 */
+	{ "KMAC", cpu_subfunc.kmac, sizeof(cpu_subfunc.kmac), test_kmac_asm_block, 17 },
+	{ "KMC", cpu_subfunc.kmc, sizeof(cpu_subfunc.kmc), test_kmc_asm_block, 17 },
+	{ "KM", cpu_subfunc.km, sizeof(cpu_subfunc.km), test_km_asm_block, 17 },
+	{ "KIMD", cpu_subfunc.kimd, sizeof(cpu_subfunc.kimd), test_kimd_asm_block, 17 },
+	{ "KLMD", cpu_subfunc.klmd, sizeof(cpu_subfunc.klmd), test_klmd_asm_block, 17 },
+	/* MSA - Facility bit 77 */
+	{ "KMCTR", cpu_subfunc.kmctr, sizeof(cpu_subfunc.kmctr), test_kmctr_asm_block, 77 },
+	{ "KMF", cpu_subfunc.kmf, sizeof(cpu_subfunc.kmf), test_kmf_asm_block, 77 },
+	{ "KMO", cpu_subfunc.kmo, sizeof(cpu_subfunc.kmo), test_kmo_asm_block, 77 },
+	{ "PCC", cpu_subfunc.pcc, sizeof(cpu_subfunc.pcc), test_pcc_asm_block, 77 },
+	/* MSA5 - Facility bit 57 */
+	{ "PPNO", cpu_subfunc.ppno, sizeof(cpu_subfunc.ppno), test_prno_asm_block, 57 },
+	/* MSA8 - Facility bit 146 */
+	{ "KMA", cpu_subfunc.kma, sizeof(cpu_subfunc.kma), test_kma_asm_block, 146 },
+	/* MSA9 - Facility bit 155 */
+	{ "KDSA", cpu_subfunc.kdsa, sizeof(cpu_subfunc.kdsa), test_kdsa_asm_block, 155 },
+	/* SORTL - Facility bit 150 */
+	{ "SORTL", cpu_subfunc.sortl, sizeof(cpu_subfunc.sortl), test_sortl_asm_block, 150 },
+	/* DFLTCC - Facility bit 151 */
+	{ "DFLTCC", cpu_subfunc.dfltcc, sizeof(cpu_subfunc.dfltcc), test_dfltcc_asm_block, 151 },
+	/* Concurrent-function facility - Facility bit 201 */
+	{ "PFCR", cpu_subfunc.pfcr, sizeof(cpu_subfunc.pfcr), test_pfcr_asm_block, 201 },
+};
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	int idx;
+
+	ksft_print_header();
+
+	vm = vm_create(1);
+
+	memset(&cpu_subfunc, 0, sizeof(cpu_subfunc));
+	get_cpu_machine_subfuntions(vm, &cpu_subfunc);
+
+	ksft_set_plan(ARRAY_SIZE(testlist));
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		if (test_facility(testlist[idx].facility_bit)) {
+			u8 *array = malloc(testlist[idx].array_size);
+
+			testlist[idx].test((u8 (*)[testlist[idx].array_size])array);
+
+			TEST_ASSERT_EQ(memcmp(testlist[idx].subfunc_array,
+					      array, testlist[idx].array_size), 0);
+
+			ksft_test_result_pass("%s\n", testlist[idx].subfunc_name);
+			free(array);
+		} else {
+			ksft_test_result_skip("%s feature is not available\n",
+					      testlist[idx].subfunc_name);
+		}
+	}
+
+	kvm_vm_free(vm);
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/s390/debug_test.c b/tools/testing/selftests/kvm/s390/debug_test.c
new file mode 100644
index 000000000000..ad8095968601
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/debug_test.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Test KVM debugging features. */
+#include "kvm_util.h"
+#include "test_util.h"
+#include "sie.h"
+
+#include <linux/kvm.h>
+
+#define __LC_SVC_NEW_PSW 0x1c0
+#define __LC_PGM_NEW_PSW 0x1d0
+#define IPA0_DIAG 0x8300
+#define PGM_SPECIFICATION 0x06
+
+/* Common code for testing single-stepping interruptions. */
+extern char int_handler[];
+asm("int_handler:\n"
+    "j .\n");
+
+static struct kvm_vm *test_step_int_1(struct kvm_vcpu **vcpu, void *guest_code,
+				      size_t new_psw_off, uint64_t *new_psw)
+{
+	struct kvm_guest_debug debug = {};
+	struct kvm_regs regs;
+	struct kvm_vm *vm;
+	char *lowcore;
+
+	vm = vm_create_with_one_vcpu(vcpu, guest_code);
+	lowcore = addr_gpa2hva(vm, 0);
+	new_psw[0] = (*vcpu)->run->psw_mask;
+	new_psw[1] = (uint64_t)int_handler;
+	memcpy(lowcore + new_psw_off, new_psw, 16);
+	vcpu_regs_get(*vcpu, &regs);
+	regs.gprs[2] = -1;
+	vcpu_regs_set(*vcpu, &regs);
+	debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP;
+	vcpu_guest_debug_set(*vcpu, &debug);
+	vcpu_run(*vcpu);
+
+	return vm;
+}
+
+static void test_step_int(void *guest_code, size_t new_psw_off)
+{
+	struct kvm_vcpu *vcpu;
+	uint64_t new_psw[2];
+	struct kvm_vm *vm;
+
+	vm = test_step_int_1(&vcpu, guest_code, new_psw_off, new_psw);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_DEBUG);
+	TEST_ASSERT_EQ(vcpu->run->psw_mask, new_psw[0]);
+	TEST_ASSERT_EQ(vcpu->run->psw_addr, new_psw[1]);
+	kvm_vm_free(vm);
+}
+
+/* Test single-stepping "boring" program interruptions. */
+extern char test_step_pgm_guest_code[];
+asm("test_step_pgm_guest_code:\n"
+    ".insn rr,0x1d00,%r1,%r0 /* dr %r1,%r0 */\n"
+    "j .\n");
+
+static void test_step_pgm(void)
+{
+	test_step_int(test_step_pgm_guest_code, __LC_PGM_NEW_PSW);
+}
+
+/*
+ * Test single-stepping program interruptions caused by DIAG.
+ * Userspace emulation must not interfere with single-stepping.
+ */
+extern char test_step_pgm_diag_guest_code[];
+asm("test_step_pgm_diag_guest_code:\n"
+    "diag %r0,%r0,0\n"
+    "j .\n");
+
+static void test_step_pgm_diag(void)
+{
+	struct kvm_s390_irq irq = {
+		.type = KVM_S390_PROGRAM_INT,
+		.u.pgm.code = PGM_SPECIFICATION,
+	};
+	struct kvm_vcpu *vcpu;
+	uint64_t new_psw[2];
+	struct kvm_vm *vm;
+
+	vm = test_step_int_1(&vcpu, test_step_pgm_diag_guest_code,
+			     __LC_PGM_NEW_PSW, new_psw);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_INST);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa & 0xff00, IPA0_DIAG);
+	vcpu_ioctl(vcpu, KVM_S390_IRQ, &irq);
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_DEBUG);
+	TEST_ASSERT_EQ(vcpu->run->psw_mask, new_psw[0]);
+	TEST_ASSERT_EQ(vcpu->run->psw_addr, new_psw[1]);
+	kvm_vm_free(vm);
+}
+
+/*
+ * Test single-stepping program interruptions caused by ISKE.
+ * CPUSTAT_KSS handling must not interfere with single-stepping.
+ */
+extern char test_step_pgm_iske_guest_code[];
+asm("test_step_pgm_iske_guest_code:\n"
+    "iske %r2,%r2\n"
+    "j .\n");
+
+static void test_step_pgm_iske(void)
+{
+	test_step_int(test_step_pgm_iske_guest_code, __LC_PGM_NEW_PSW);
+}
+
+/*
+ * Test single-stepping program interruptions caused by LCTL.
+ * KVM emulation must not interfere with single-stepping.
+ */
+extern char test_step_pgm_lctl_guest_code[];
+asm("test_step_pgm_lctl_guest_code:\n"
+    "lctl %c0,%c0,1\n"
+    "j .\n");
+
+static void test_step_pgm_lctl(void)
+{
+	test_step_int(test_step_pgm_lctl_guest_code, __LC_PGM_NEW_PSW);
+}
+
+/* Test single-stepping supervisor-call interruptions. */
+extern char test_step_svc_guest_code[];
+asm("test_step_svc_guest_code:\n"
+    "svc 0\n"
+    "j .\n");
+
+static void test_step_svc(void)
+{
+	test_step_int(test_step_svc_guest_code, __LC_SVC_NEW_PSW);
+}
+
+/* Run all tests above. */
+static struct testdef {
+	const char *name;
+	void (*test)(void);
+} testlist[] = {
+	{ "single-step pgm", test_step_pgm },
+	{ "single-step pgm caused by diag", test_step_pgm_diag },
+	{ "single-step pgm caused by iske", test_step_pgm_iske },
+	{ "single-step pgm caused by lctl", test_step_pgm_lctl },
+	{ "single-step svc", test_step_svc },
+};
+
+int main(int argc, char *argv[])
+{
+	int idx;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(testlist));
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		testlist[idx].test();
+		ksft_test_result_pass("%s\n", testlist[idx].name);
+	}
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/s390/memop.c b/tools/testing/selftests/kvm/s390/memop.c
new file mode 100644
index 000000000000..4374b4cd2a80
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/memop.c
@@ -0,0 +1,1187 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test for s390x KVM_S390_MEM_OP
+ *
+ * Copyright (C) 2019, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <pthread.h>
+
+#include <linux/bits.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "kselftest.h"
+#include "ucall_common.h"
+#include "processor.h"
+
+enum mop_target {
+	LOGICAL,
+	SIDA,
+	ABSOLUTE,
+	INVALID,
+};
+
+enum mop_access_mode {
+	READ,
+	WRITE,
+	CMPXCHG,
+};
+
+struct mop_desc {
+	uintptr_t gaddr;
+	uintptr_t gaddr_v;
+	uint64_t set_flags;
+	unsigned int f_check : 1;
+	unsigned int f_inject : 1;
+	unsigned int f_key : 1;
+	unsigned int _gaddr_v : 1;
+	unsigned int _set_flags : 1;
+	unsigned int _sida_offset : 1;
+	unsigned int _ar : 1;
+	uint32_t size;
+	enum mop_target target;
+	enum mop_access_mode mode;
+	void *buf;
+	uint32_t sida_offset;
+	void *old;
+	uint8_t old_value[16];
+	bool *cmpxchg_success;
+	uint8_t ar;
+	uint8_t key;
+};
+
+const uint8_t NO_KEY = 0xff;
+
+static struct kvm_s390_mem_op ksmo_from_desc(struct mop_desc *desc)
+{
+	struct kvm_s390_mem_op ksmo = {
+		.gaddr = (uintptr_t)desc->gaddr,
+		.size = desc->size,
+		.buf = ((uintptr_t)desc->buf),
+		.reserved = "ignored_ignored_ignored_ignored"
+	};
+
+	switch (desc->target) {
+	case LOGICAL:
+		if (desc->mode == READ)
+			ksmo.op = KVM_S390_MEMOP_LOGICAL_READ;
+		if (desc->mode == WRITE)
+			ksmo.op = KVM_S390_MEMOP_LOGICAL_WRITE;
+		break;
+	case SIDA:
+		if (desc->mode == READ)
+			ksmo.op = KVM_S390_MEMOP_SIDA_READ;
+		if (desc->mode == WRITE)
+			ksmo.op = KVM_S390_MEMOP_SIDA_WRITE;
+		break;
+	case ABSOLUTE:
+		if (desc->mode == READ)
+			ksmo.op = KVM_S390_MEMOP_ABSOLUTE_READ;
+		if (desc->mode == WRITE)
+			ksmo.op = KVM_S390_MEMOP_ABSOLUTE_WRITE;
+		if (desc->mode == CMPXCHG) {
+			ksmo.op = KVM_S390_MEMOP_ABSOLUTE_CMPXCHG;
+			ksmo.old_addr = (uint64_t)desc->old;
+			memcpy(desc->old_value, desc->old, desc->size);
+		}
+		break;
+	case INVALID:
+		ksmo.op = -1;
+	}
+	if (desc->f_check)
+		ksmo.flags |= KVM_S390_MEMOP_F_CHECK_ONLY;
+	if (desc->f_inject)
+		ksmo.flags |= KVM_S390_MEMOP_F_INJECT_EXCEPTION;
+	if (desc->_set_flags)
+		ksmo.flags = desc->set_flags;
+	if (desc->f_key && desc->key != NO_KEY) {
+		ksmo.flags |= KVM_S390_MEMOP_F_SKEY_PROTECTION;
+		ksmo.key = desc->key;
+	}
+	if (desc->_ar)
+		ksmo.ar = desc->ar;
+	else
+		ksmo.ar = 0;
+	if (desc->_sida_offset)
+		ksmo.sida_offset = desc->sida_offset;
+
+	return ksmo;
+}
+
+struct test_info {
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+};
+
+#define PRINT_MEMOP false
+static void print_memop(struct kvm_vcpu *vcpu, const struct kvm_s390_mem_op *ksmo)
+{
+	if (!PRINT_MEMOP)
+		return;
+
+	if (!vcpu)
+		printf("vm memop(");
+	else
+		printf("vcpu memop(");
+	switch (ksmo->op) {
+	case KVM_S390_MEMOP_LOGICAL_READ:
+		printf("LOGICAL, READ, ");
+		break;
+	case KVM_S390_MEMOP_LOGICAL_WRITE:
+		printf("LOGICAL, WRITE, ");
+		break;
+	case KVM_S390_MEMOP_SIDA_READ:
+		printf("SIDA, READ, ");
+		break;
+	case KVM_S390_MEMOP_SIDA_WRITE:
+		printf("SIDA, WRITE, ");
+		break;
+	case KVM_S390_MEMOP_ABSOLUTE_READ:
+		printf("ABSOLUTE, READ, ");
+		break;
+	case KVM_S390_MEMOP_ABSOLUTE_WRITE:
+		printf("ABSOLUTE, WRITE, ");
+		break;
+	case KVM_S390_MEMOP_ABSOLUTE_CMPXCHG:
+		printf("ABSOLUTE, CMPXCHG, ");
+		break;
+	}
+	printf("gaddr=%llu, size=%u, buf=%llu, ar=%u, key=%u, old_addr=%llx",
+	       ksmo->gaddr, ksmo->size, ksmo->buf, ksmo->ar, ksmo->key,
+	       ksmo->old_addr);
+	if (ksmo->flags & KVM_S390_MEMOP_F_CHECK_ONLY)
+		printf(", CHECK_ONLY");
+	if (ksmo->flags & KVM_S390_MEMOP_F_INJECT_EXCEPTION)
+		printf(", INJECT_EXCEPTION");
+	if (ksmo->flags & KVM_S390_MEMOP_F_SKEY_PROTECTION)
+		printf(", SKEY_PROTECTION");
+	puts(")");
+}
+
+static int err_memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo,
+			   struct mop_desc *desc)
+{
+	struct kvm_vcpu *vcpu = info.vcpu;
+
+	if (!vcpu)
+		return __vm_ioctl(info.vm, KVM_S390_MEM_OP, ksmo);
+	else
+		return __vcpu_ioctl(vcpu, KVM_S390_MEM_OP, ksmo);
+}
+
+static void memop_ioctl(struct test_info info, struct kvm_s390_mem_op *ksmo,
+			struct mop_desc *desc)
+{
+	int r;
+
+	r = err_memop_ioctl(info, ksmo, desc);
+	if (ksmo->op == KVM_S390_MEMOP_ABSOLUTE_CMPXCHG) {
+		if (desc->cmpxchg_success) {
+			int diff = memcmp(desc->old_value, desc->old, desc->size);
+			*desc->cmpxchg_success = !diff;
+		}
+	}
+	TEST_ASSERT(!r, __KVM_IOCTL_ERROR("KVM_S390_MEM_OP", r));
+}
+
+#define MEMOP(err, info_p, mop_target_p, access_mode_p, buf_p, size_p, ...)	\
+({										\
+	struct test_info __info = (info_p);					\
+	struct mop_desc __desc = {						\
+		.target = (mop_target_p),					\
+		.mode = (access_mode_p),					\
+		.buf = (buf_p),							\
+		.size = (size_p),						\
+		__VA_ARGS__							\
+	};									\
+	struct kvm_s390_mem_op __ksmo;						\
+										\
+	if (__desc._gaddr_v) {							\
+		if (__desc.target == ABSOLUTE)					\
+			__desc.gaddr = addr_gva2gpa(__info.vm, __desc.gaddr_v);	\
+		else								\
+			__desc.gaddr = __desc.gaddr_v;				\
+	}									\
+	__ksmo = ksmo_from_desc(&__desc);					\
+	print_memop(__info.vcpu, &__ksmo);					\
+	err##memop_ioctl(__info, &__ksmo, &__desc);				\
+})
+
+#define MOP(...) MEMOP(, __VA_ARGS__)
+#define ERR_MOP(...) MEMOP(err_, __VA_ARGS__)
+
+#define GADDR(a) .gaddr = ((uintptr_t)a)
+#define GADDR_V(v) ._gaddr_v = 1, .gaddr_v = ((uintptr_t)v)
+#define CHECK_ONLY .f_check = 1
+#define SET_FLAGS(f) ._set_flags = 1, .set_flags = (f)
+#define SIDA_OFFSET(o) ._sida_offset = 1, .sida_offset = (o)
+#define AR(a) ._ar = 1, .ar = (a)
+#define KEY(a) .f_key = 1, .key = (a)
+#define INJECT .f_inject = 1
+#define CMPXCHG_OLD(o) .old = (o)
+#define CMPXCHG_SUCCESS(s) .cmpxchg_success = (s)
+
+#define CHECK_N_DO(f, ...) ({ f(__VA_ARGS__, CHECK_ONLY); f(__VA_ARGS__); })
+
+#define CR0_FETCH_PROTECTION_OVERRIDE	(1UL << (63 - 38))
+#define CR0_STORAGE_PROTECTION_OVERRIDE	(1UL << (63 - 39))
+
+static uint8_t __aligned(PAGE_SIZE) mem1[65536];
+static uint8_t __aligned(PAGE_SIZE) mem2[65536];
+
+struct test_default {
+	struct kvm_vm *kvm_vm;
+	struct test_info vm;
+	struct test_info vcpu;
+	struct kvm_run *run;
+	int size;
+};
+
+static struct test_default test_default_init(void *guest_code)
+{
+	struct kvm_vcpu *vcpu;
+	struct test_default t;
+
+	t.size = min((size_t)kvm_check_cap(KVM_CAP_S390_MEM_OP), sizeof(mem1));
+	t.kvm_vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	t.vm = (struct test_info) { t.kvm_vm, NULL };
+	t.vcpu = (struct test_info) { t.kvm_vm, vcpu };
+	t.run = vcpu->run;
+	return t;
+}
+
+enum stage {
+	/* Synced state set by host, e.g. DAT */
+	STAGE_INITED,
+	/* Guest did nothing */
+	STAGE_IDLED,
+	/* Guest set storage keys (specifics up to test case) */
+	STAGE_SKEYS_SET,
+	/* Guest copied memory (locations up to test case) */
+	STAGE_COPIED,
+	/* End of guest code reached */
+	STAGE_DONE,
+};
+
+#define HOST_SYNC(info_p, stage)					\
+({									\
+	struct test_info __info = (info_p);				\
+	struct kvm_vcpu *__vcpu = __info.vcpu;				\
+	struct ucall uc;						\
+	int __stage = (stage);						\
+									\
+	vcpu_run(__vcpu);						\
+	get_ucall(__vcpu, &uc);						\
+	if (uc.cmd == UCALL_ABORT) {					\
+		REPORT_GUEST_ASSERT(uc);				\
+	}								\
+	TEST_ASSERT_EQ(uc.cmd, UCALL_SYNC);				\
+	TEST_ASSERT_EQ(uc.args[1], __stage);				\
+})									\
+
+static void prepare_mem12(void)
+{
+	int i;
+
+	for (i = 0; i < sizeof(mem1); i++)
+		mem1[i] = rand();
+	memset(mem2, 0xaa, sizeof(mem2));
+}
+
+#define ASSERT_MEM_EQ(p1, p2, size) \
+	TEST_ASSERT(!memcmp(p1, p2, size), "Memory contents do not match!")
+
+static void default_write_read(struct test_info copy_cpu, struct test_info mop_cpu,
+			       enum mop_target mop_target, uint32_t size, uint8_t key)
+{
+	prepare_mem12();
+	CHECK_N_DO(MOP, mop_cpu, mop_target, WRITE, mem1, size,
+		   GADDR_V(mem1), KEY(key));
+	HOST_SYNC(copy_cpu, STAGE_COPIED);
+	CHECK_N_DO(MOP, mop_cpu, mop_target, READ, mem2, size,
+		   GADDR_V(mem2), KEY(key));
+	ASSERT_MEM_EQ(mem1, mem2, size);
+}
+
+static void default_read(struct test_info copy_cpu, struct test_info mop_cpu,
+			 enum mop_target mop_target, uint32_t size, uint8_t key)
+{
+	prepare_mem12();
+	CHECK_N_DO(MOP, mop_cpu, mop_target, WRITE, mem1, size, GADDR_V(mem1));
+	HOST_SYNC(copy_cpu, STAGE_COPIED);
+	CHECK_N_DO(MOP, mop_cpu, mop_target, READ, mem2, size,
+		   GADDR_V(mem2), KEY(key));
+	ASSERT_MEM_EQ(mem1, mem2, size);
+}
+
+static void default_cmpxchg(struct test_default *test, uint8_t key)
+{
+	for (int size = 1; size <= 16; size *= 2) {
+		for (int offset = 0; offset < 16; offset += size) {
+			uint8_t __aligned(16) new[16] = {};
+			uint8_t __aligned(16) old[16];
+			bool succ;
+
+			prepare_mem12();
+			default_write_read(test->vcpu, test->vcpu, LOGICAL, 16, NO_KEY);
+
+			memcpy(&old, mem1, 16);
+			MOP(test->vm, ABSOLUTE, CMPXCHG, new + offset,
+			    size, GADDR_V(mem1 + offset),
+			    CMPXCHG_OLD(old + offset),
+			    CMPXCHG_SUCCESS(&succ), KEY(key));
+			HOST_SYNC(test->vcpu, STAGE_COPIED);
+			MOP(test->vm, ABSOLUTE, READ, mem2, 16, GADDR_V(mem2));
+			TEST_ASSERT(succ, "exchange of values should succeed");
+			memcpy(mem1 + offset, new + offset, size);
+			ASSERT_MEM_EQ(mem1, mem2, 16);
+
+			memcpy(&old, mem1, 16);
+			new[offset]++;
+			old[offset]++;
+			MOP(test->vm, ABSOLUTE, CMPXCHG, new + offset,
+			    size, GADDR_V(mem1 + offset),
+			    CMPXCHG_OLD(old + offset),
+			    CMPXCHG_SUCCESS(&succ), KEY(key));
+			HOST_SYNC(test->vcpu, STAGE_COPIED);
+			MOP(test->vm, ABSOLUTE, READ, mem2, 16, GADDR_V(mem2));
+			TEST_ASSERT(!succ, "exchange of values should not succeed");
+			ASSERT_MEM_EQ(mem1, mem2, 16);
+			ASSERT_MEM_EQ(&old, mem1, 16);
+		}
+	}
+}
+
+static void guest_copy(void)
+{
+	GUEST_SYNC(STAGE_INITED);
+	memcpy(&mem2, &mem1, sizeof(mem2));
+	GUEST_SYNC(STAGE_COPIED);
+}
+
+static void test_copy(void)
+{
+	struct test_default t = test_default_init(guest_copy);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, NO_KEY);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_copy_access_register(void)
+{
+	struct test_default t = test_default_init(guest_copy);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+
+	prepare_mem12();
+	t.run->psw_mask &= ~(3UL << (63 - 17));
+	t.run->psw_mask |= 1UL << (63 - 17);  /* Enable AR mode */
+
+	/*
+	 * Primary address space gets used if an access register
+	 * contains zero. The host makes use of AR[1] so is a good
+	 * candidate to ensure the guest AR (of zero) is used.
+	 */
+	CHECK_N_DO(MOP, t.vcpu, LOGICAL, WRITE, mem1, t.size,
+		   GADDR_V(mem1), AR(1));
+	HOST_SYNC(t.vcpu, STAGE_COPIED);
+
+	CHECK_N_DO(MOP, t.vcpu, LOGICAL, READ, mem2, t.size,
+		   GADDR_V(mem2), AR(1));
+	ASSERT_MEM_EQ(mem1, mem2, t.size);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void set_storage_key_range(void *addr, size_t len, uint8_t key)
+{
+	uintptr_t _addr, abs, i;
+	int not_mapped = 0;
+
+	_addr = (uintptr_t)addr;
+	for (i = _addr & PAGE_MASK; i < _addr + len; i += PAGE_SIZE) {
+		abs = i;
+		asm volatile (
+			       "lra	%[abs], 0(0,%[abs])\n"
+			"	jz	0f\n"
+			"	llill	%[not_mapped],1\n"
+			"	j	1f\n"
+			"0:	sske	%[key], %[abs]\n"
+			"1:"
+			: [abs] "+&a" (abs), [not_mapped] "+r" (not_mapped)
+			: [key] "r" (key)
+			: "cc"
+		);
+		GUEST_ASSERT_EQ(not_mapped, 0);
+	}
+}
+
+static void guest_copy_key(void)
+{
+	set_storage_key_range(mem1, sizeof(mem1), 0x90);
+	set_storage_key_range(mem2, sizeof(mem2), 0x90);
+	GUEST_SYNC(STAGE_SKEYS_SET);
+
+	for (;;) {
+		memcpy(&mem2, &mem1, sizeof(mem2));
+		GUEST_SYNC(STAGE_COPIED);
+	}
+}
+
+static void test_copy_key(void)
+{
+	struct test_default t = test_default_init(guest_copy_key);
+
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vm, no key */
+	default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, NO_KEY);
+
+	/* vm/vcpu, machting key or key 0 */
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 0);
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 9);
+	default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, 0);
+	default_write_read(t.vcpu, t.vm, ABSOLUTE, t.size, 9);
+	/*
+	 * There used to be different code paths for key handling depending on
+	 * if the region crossed a page boundary.
+	 * There currently are not, but the more tests the merrier.
+	 */
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, 1, 0);
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, 1, 9);
+	default_write_read(t.vcpu, t.vm, ABSOLUTE, 1, 0);
+	default_write_read(t.vcpu, t.vm, ABSOLUTE, 1, 9);
+
+	/* vm/vcpu, mismatching keys on read, but no fetch protection */
+	default_read(t.vcpu, t.vcpu, LOGICAL, t.size, 2);
+	default_read(t.vcpu, t.vm, ABSOLUTE, t.size, 2);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_cmpxchg_key(void)
+{
+	struct test_default t = test_default_init(guest_copy_key);
+
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	default_cmpxchg(&t, NO_KEY);
+	default_cmpxchg(&t, 0);
+	default_cmpxchg(&t, 9);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static __uint128_t cut_to_size(int size, __uint128_t val)
+{
+	switch (size) {
+	case 1:
+		return (uint8_t)val;
+	case 2:
+		return (uint16_t)val;
+	case 4:
+		return (uint32_t)val;
+	case 8:
+		return (uint64_t)val;
+	case 16:
+		return val;
+	}
+	GUEST_FAIL("Invalid size = %u", size);
+	return 0;
+}
+
+static bool popcount_eq(__uint128_t a, __uint128_t b)
+{
+	unsigned int count_a, count_b;
+
+	count_a = __builtin_popcountl((uint64_t)(a >> 64)) +
+		  __builtin_popcountl((uint64_t)a);
+	count_b = __builtin_popcountl((uint64_t)(b >> 64)) +
+		  __builtin_popcountl((uint64_t)b);
+	return count_a == count_b;
+}
+
+static __uint128_t rotate(int size, __uint128_t val, int amount)
+{
+	unsigned int bits = size * 8;
+
+	amount = (amount + bits) % bits;
+	val = cut_to_size(size, val);
+	if (!amount)
+		return val;
+	return (val << (bits - amount)) | (val >> amount);
+}
+
+const unsigned int max_block = 16;
+
+static void choose_block(bool guest, int i, int *size, int *offset)
+{
+	unsigned int rand;
+
+	rand = i;
+	if (guest) {
+		rand = rand * 19 + 11;
+		*size = 1 << ((rand % 3) + 2);
+		rand = rand * 19 + 11;
+		*offset = (rand % max_block) & ~(*size - 1);
+	} else {
+		rand = rand * 17 + 5;
+		*size = 1 << (rand % 5);
+		rand = rand * 17 + 5;
+		*offset = (rand % max_block) & ~(*size - 1);
+	}
+}
+
+static __uint128_t permutate_bits(bool guest, int i, int size, __uint128_t old)
+{
+	unsigned int rand;
+	int amount;
+	bool swap;
+
+	rand = i;
+	rand = rand * 3 + 1;
+	if (guest)
+		rand = rand * 3 + 1;
+	swap = rand % 2 == 0;
+	if (swap) {
+		int i, j;
+		__uint128_t new;
+		uint8_t byte0, byte1;
+
+		rand = rand * 3 + 1;
+		i = rand % size;
+		rand = rand * 3 + 1;
+		j = rand % size;
+		if (i == j)
+			return old;
+		new = rotate(16, old, i * 8);
+		byte0 = new & 0xff;
+		new &= ~0xff;
+		new = rotate(16, new, -i * 8);
+		new = rotate(16, new, j * 8);
+		byte1 = new & 0xff;
+		new = (new & ~0xff) | byte0;
+		new = rotate(16, new, -j * 8);
+		new = rotate(16, new, i * 8);
+		new = new | byte1;
+		new = rotate(16, new, -i * 8);
+		return new;
+	}
+	rand = rand * 3 + 1;
+	amount = rand % (size * 8);
+	return rotate(size, old, amount);
+}
+
+static bool _cmpxchg(int size, void *target, __uint128_t *old_addr, __uint128_t new)
+{
+	bool ret;
+
+	switch (size) {
+	case 4: {
+			uint32_t old = *old_addr;
+
+			asm volatile ("cs %[old],%[new],%[address]"
+			    : [old] "+d" (old),
+			      [address] "+Q" (*(uint32_t *)(target))
+			    : [new] "d" ((uint32_t)new)
+			    : "cc"
+			);
+			ret = old == (uint32_t)*old_addr;
+			*old_addr = old;
+			return ret;
+		}
+	case 8: {
+			uint64_t old = *old_addr;
+
+			asm volatile ("csg %[old],%[new],%[address]"
+			    : [old] "+d" (old),
+			      [address] "+Q" (*(uint64_t *)(target))
+			    : [new] "d" ((uint64_t)new)
+			    : "cc"
+			);
+			ret = old == (uint64_t)*old_addr;
+			*old_addr = old;
+			return ret;
+		}
+	case 16: {
+			__uint128_t old = *old_addr;
+
+			asm volatile ("cdsg %[old],%[new],%[address]"
+			    : [old] "+d" (old),
+			      [address] "+Q" (*(__uint128_t *)(target))
+			    : [new] "d" (new)
+			    : "cc"
+			);
+			ret = old == *old_addr;
+			*old_addr = old;
+			return ret;
+		}
+	}
+	GUEST_FAIL("Invalid size = %u", size);
+	return 0;
+}
+
+const unsigned int cmpxchg_iter_outer = 100, cmpxchg_iter_inner = 10000;
+
+static void guest_cmpxchg_key(void)
+{
+	int size, offset;
+	__uint128_t old, new;
+
+	set_storage_key_range(mem1, max_block, 0x10);
+	set_storage_key_range(mem2, max_block, 0x10);
+	GUEST_SYNC(STAGE_SKEYS_SET);
+
+	for (int i = 0; i < cmpxchg_iter_outer; i++) {
+		do {
+			old = 1;
+		} while (!_cmpxchg(16, mem1, &old, 0));
+		for (int j = 0; j < cmpxchg_iter_inner; j++) {
+			choose_block(true, i + j, &size, &offset);
+			do {
+				new = permutate_bits(true, i + j, size, old);
+			} while (!_cmpxchg(size, mem2 + offset, &old, new));
+		}
+	}
+
+	GUEST_SYNC(STAGE_DONE);
+}
+
+static void *run_guest(void *data)
+{
+	struct test_info *info = data;
+
+	HOST_SYNC(*info, STAGE_DONE);
+	return NULL;
+}
+
+static char *quad_to_char(__uint128_t *quad, int size)
+{
+	return ((char *)quad) + (sizeof(*quad) - size);
+}
+
+static void test_cmpxchg_key_concurrent(void)
+{
+	struct test_default t = test_default_init(guest_cmpxchg_key);
+	int size, offset;
+	__uint128_t old, new;
+	bool success;
+	pthread_t thread;
+
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+	prepare_mem12();
+	MOP(t.vcpu, LOGICAL, WRITE, mem1, max_block, GADDR_V(mem2));
+	pthread_create(&thread, NULL, run_guest, &t.vcpu);
+
+	for (int i = 0; i < cmpxchg_iter_outer; i++) {
+		do {
+			old = 0;
+			new = 1;
+			MOP(t.vm, ABSOLUTE, CMPXCHG, &new,
+			    sizeof(new), GADDR_V(mem1),
+			    CMPXCHG_OLD(&old),
+			    CMPXCHG_SUCCESS(&success), KEY(1));
+		} while (!success);
+		for (int j = 0; j < cmpxchg_iter_inner; j++) {
+			choose_block(false, i + j, &size, &offset);
+			do {
+				new = permutate_bits(false, i + j, size, old);
+				MOP(t.vm, ABSOLUTE, CMPXCHG, quad_to_char(&new, size),
+				    size, GADDR_V(mem2 + offset),
+				    CMPXCHG_OLD(quad_to_char(&old, size)),
+				    CMPXCHG_SUCCESS(&success), KEY(1));
+			} while (!success);
+		}
+	}
+
+	pthread_join(thread, NULL);
+
+	MOP(t.vcpu, LOGICAL, READ, mem2, max_block, GADDR_V(mem2));
+	TEST_ASSERT(popcount_eq(*(__uint128_t *)mem1, *(__uint128_t *)mem2),
+		    "Must retain number of set bits");
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void guest_copy_key_fetch_prot(void)
+{
+	/*
+	 * For some reason combining the first sync with override enablement
+	 * results in an exception when calling HOST_SYNC.
+	 */
+	GUEST_SYNC(STAGE_INITED);
+	/* Storage protection override applies to both store and fetch. */
+	set_storage_key_range(mem1, sizeof(mem1), 0x98);
+	set_storage_key_range(mem2, sizeof(mem2), 0x98);
+	GUEST_SYNC(STAGE_SKEYS_SET);
+
+	for (;;) {
+		memcpy(&mem2, &mem1, sizeof(mem2));
+		GUEST_SYNC(STAGE_COPIED);
+	}
+}
+
+static void test_copy_key_storage_prot_override(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	t.run->s.regs.crs[0] |= CR0_STORAGE_PROTECTION_OVERRIDE;
+	t.run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vcpu, mismatching keys, storage protection override in effect */
+	default_write_read(t.vcpu, t.vcpu, LOGICAL, t.size, 2);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_copy_key_fetch_prot(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vm/vcpu, matching key, fetch protection in effect */
+	default_read(t.vcpu, t.vcpu, LOGICAL, t.size, 9);
+	default_read(t.vcpu, t.vm, ABSOLUTE, t.size, 9);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+#define ERR_PROT_MOP(...)							\
+({										\
+	int rv;									\
+										\
+	rv = ERR_MOP(__VA_ARGS__);						\
+	TEST_ASSERT(rv == 4, "Should result in protection exception");		\
+})
+
+static void guest_error_key(void)
+{
+	GUEST_SYNC(STAGE_INITED);
+	set_storage_key_range(mem1, PAGE_SIZE, 0x18);
+	set_storage_key_range(mem1 + PAGE_SIZE, sizeof(mem1) - PAGE_SIZE, 0x98);
+	GUEST_SYNC(STAGE_SKEYS_SET);
+	GUEST_SYNC(STAGE_IDLED);
+}
+
+static void test_errors_key(void)
+{
+	struct test_default t = test_default_init(guest_error_key);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vm/vcpu, mismatching keys, fetch protection in effect */
+	CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, WRITE, mem1, t.size, GADDR_V(mem1), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, t.size, GADDR_V(mem1), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, WRITE, mem1, t.size, GADDR_V(mem1), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, t.size, GADDR_V(mem1), KEY(2));
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_errors_cmpxchg_key(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot);
+	int i;
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	for (i = 1; i <= 16; i *= 2) {
+		__uint128_t old = 0;
+
+		ERR_PROT_MOP(t.vm, ABSOLUTE, CMPXCHG, mem2, i, GADDR_V(mem2),
+			     CMPXCHG_OLD(&old), KEY(2));
+	}
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_termination(void)
+{
+	struct test_default t = test_default_init(guest_error_key);
+	uint64_t prefix;
+	uint64_t teid;
+	uint64_t teid_mask = BIT(63 - 56) | BIT(63 - 60) | BIT(63 - 61);
+	uint64_t psw[2];
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vcpu, mismatching keys after first page */
+	ERR_PROT_MOP(t.vcpu, LOGICAL, WRITE, mem1, t.size, GADDR_V(mem1), KEY(1), INJECT);
+	/*
+	 * The memop injected a program exception and the test needs to check the
+	 * Translation-Exception Identification (TEID). It is necessary to run
+	 * the guest in order to be able to read the TEID from guest memory.
+	 * Set the guest program new PSW, so the guest state is not clobbered.
+	 */
+	prefix = t.run->s.regs.prefix;
+	psw[0] = t.run->psw_mask;
+	psw[1] = t.run->psw_addr;
+	MOP(t.vm, ABSOLUTE, WRITE, psw, sizeof(psw), GADDR(prefix + 464));
+	HOST_SYNC(t.vcpu, STAGE_IDLED);
+	MOP(t.vm, ABSOLUTE, READ, &teid, sizeof(teid), GADDR(prefix + 168));
+	/* Bits 56, 60, 61 form a code, 0 being the only one allowing for termination */
+	TEST_ASSERT_EQ(teid & teid_mask, 0);
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_errors_key_storage_prot_override(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot);
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	t.run->s.regs.crs[0] |= CR0_STORAGE_PROTECTION_OVERRIDE;
+	t.run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vm, mismatching keys, storage protection override not applicable to vm */
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, WRITE, mem1, t.size, GADDR_V(mem1), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, t.size, GADDR_V(mem2), KEY(2));
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+const uint64_t last_page_addr = -PAGE_SIZE;
+
+static void guest_copy_key_fetch_prot_override(void)
+{
+	int i;
+	char *page_0 = 0;
+
+	GUEST_SYNC(STAGE_INITED);
+	set_storage_key_range(0, PAGE_SIZE, 0x18);
+	set_storage_key_range((void *)last_page_addr, PAGE_SIZE, 0x0);
+	asm volatile ("sske %[key],%[addr]\n" :: [addr] "r"(0L), [key] "r"(0x18) : "cc");
+	GUEST_SYNC(STAGE_SKEYS_SET);
+
+	for (;;) {
+		for (i = 0; i < PAGE_SIZE; i++)
+			page_0[i] = mem1[i];
+		GUEST_SYNC(STAGE_COPIED);
+	}
+}
+
+static void test_copy_key_fetch_prot_override(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot_override);
+	vm_vaddr_t guest_0_page, guest_last_page;
+
+	guest_0_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, 0);
+	guest_last_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, last_page_addr);
+	if (guest_0_page != 0 || guest_last_page != last_page_addr) {
+		print_skip("did not allocate guest pages at required positions");
+		goto out;
+	}
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	t.run->s.regs.crs[0] |= CR0_FETCH_PROTECTION_OVERRIDE;
+	t.run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vcpu, mismatching keys on fetch, fetch protection override applies */
+	prepare_mem12();
+	MOP(t.vcpu, LOGICAL, WRITE, mem1, PAGE_SIZE, GADDR_V(mem1));
+	HOST_SYNC(t.vcpu, STAGE_COPIED);
+	CHECK_N_DO(MOP, t.vcpu, LOGICAL, READ, mem2, 2048, GADDR_V(guest_0_page), KEY(2));
+	ASSERT_MEM_EQ(mem1, mem2, 2048);
+
+	/*
+	 * vcpu, mismatching keys on fetch, fetch protection override applies,
+	 * wraparound
+	 */
+	prepare_mem12();
+	MOP(t.vcpu, LOGICAL, WRITE, mem1, 2 * PAGE_SIZE, GADDR_V(guest_last_page));
+	HOST_SYNC(t.vcpu, STAGE_COPIED);
+	CHECK_N_DO(MOP, t.vcpu, LOGICAL, READ, mem2, PAGE_SIZE + 2048,
+		   GADDR_V(guest_last_page), KEY(2));
+	ASSERT_MEM_EQ(mem1, mem2, 2048);
+
+out:
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_errors_key_fetch_prot_override_not_enabled(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot_override);
+	vm_vaddr_t guest_0_page, guest_last_page;
+
+	guest_0_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, 0);
+	guest_last_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, last_page_addr);
+	if (guest_0_page != 0 || guest_last_page != last_page_addr) {
+		print_skip("did not allocate guest pages at required positions");
+		goto out;
+	}
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/* vcpu, mismatching keys on fetch, fetch protection override not enabled */
+	CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, 2048, GADDR_V(0), KEY(2));
+
+out:
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_errors_key_fetch_prot_override_enabled(void)
+{
+	struct test_default t = test_default_init(guest_copy_key_fetch_prot_override);
+	vm_vaddr_t guest_0_page, guest_last_page;
+
+	guest_0_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, 0);
+	guest_last_page = vm_vaddr_alloc(t.kvm_vm, PAGE_SIZE, last_page_addr);
+	if (guest_0_page != 0 || guest_last_page != last_page_addr) {
+		print_skip("did not allocate guest pages at required positions");
+		goto out;
+	}
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+	t.run->s.regs.crs[0] |= CR0_FETCH_PROTECTION_OVERRIDE;
+	t.run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(t.vcpu, STAGE_SKEYS_SET);
+
+	/*
+	 * vcpu, mismatching keys on fetch,
+	 * fetch protection override does not apply because memory range exceeded
+	 */
+	CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, 2048 + 1, GADDR_V(0), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vcpu, LOGICAL, READ, mem2, PAGE_SIZE + 2048 + 1,
+		   GADDR_V(guest_last_page), KEY(2));
+	/* vm, fetch protected override does not apply */
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, 2048, GADDR(0), KEY(2));
+	CHECK_N_DO(ERR_PROT_MOP, t.vm, ABSOLUTE, READ, mem2, 2048, GADDR_V(guest_0_page), KEY(2));
+
+out:
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void guest_idle(void)
+{
+	GUEST_SYNC(STAGE_INITED); /* for consistency's sake */
+	for (;;)
+		GUEST_SYNC(STAGE_IDLED);
+}
+
+static void _test_errors_common(struct test_info info, enum mop_target target, int size)
+{
+	int rv;
+
+	/* Bad size: */
+	rv = ERR_MOP(info, target, WRITE, mem1, -1, GADDR_V(mem1));
+	TEST_ASSERT(rv == -1 && errno == E2BIG, "ioctl allows insane sizes");
+
+	/* Zero size: */
+	rv = ERR_MOP(info, target, WRITE, mem1, 0, GADDR_V(mem1));
+	TEST_ASSERT(rv == -1 && (errno == EINVAL || errno == ENOMEM),
+		    "ioctl allows 0 as size");
+
+	/* Bad flags: */
+	rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR_V(mem1), SET_FLAGS(-1));
+	TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows all flags");
+
+	/* Bad guest address: */
+	rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR((void *)~0xfffUL), CHECK_ONLY);
+	TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory address with CHECK_ONLY");
+	rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR((void *)~0xfffUL));
+	TEST_ASSERT(rv > 0, "ioctl does not report bad guest memory address on write");
+
+	/* Bad host address: */
+	rv = ERR_MOP(info, target, WRITE, 0, size, GADDR_V(mem1));
+	TEST_ASSERT(rv == -1 && errno == EFAULT,
+		    "ioctl does not report bad host memory address");
+
+	/* Bad key: */
+	rv = ERR_MOP(info, target, WRITE, mem1, size, GADDR_V(mem1), KEY(17));
+	TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows invalid key");
+}
+
+static void test_errors(void)
+{
+	struct test_default t = test_default_init(guest_idle);
+	int rv;
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+
+	_test_errors_common(t.vcpu, LOGICAL, t.size);
+	_test_errors_common(t.vm, ABSOLUTE, t.size);
+
+	/* Bad operation: */
+	rv = ERR_MOP(t.vcpu, INVALID, WRITE, mem1, t.size, GADDR_V(mem1));
+	TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows bad operations");
+	/* virtual addresses are not translated when passing INVALID */
+	rv = ERR_MOP(t.vm, INVALID, WRITE, mem1, PAGE_SIZE, GADDR(0));
+	TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows bad operations");
+
+	/* Bad access register: */
+	t.run->psw_mask &= ~(3UL << (63 - 17));
+	t.run->psw_mask |= 1UL << (63 - 17);  /* Enable AR mode */
+	HOST_SYNC(t.vcpu, STAGE_IDLED); /* To sync new state to SIE block */
+	rv = ERR_MOP(t.vcpu, LOGICAL, WRITE, mem1, t.size, GADDR_V(mem1), AR(17));
+	TEST_ASSERT(rv == -1 && errno == EINVAL, "ioctl allows ARs > 15");
+	t.run->psw_mask &= ~(3UL << (63 - 17));   /* Disable AR mode */
+	HOST_SYNC(t.vcpu, STAGE_IDLED); /* Run to sync new state */
+
+	/* Check that the SIDA calls are rejected for non-protected guests */
+	rv = ERR_MOP(t.vcpu, SIDA, READ, mem1, 8, GADDR(0), SIDA_OFFSET(0x1c0));
+	TEST_ASSERT(rv == -1 && errno == EINVAL,
+		    "ioctl does not reject SIDA_READ in non-protected mode");
+	rv = ERR_MOP(t.vcpu, SIDA, WRITE, mem1, 8, GADDR(0), SIDA_OFFSET(0x1c0));
+	TEST_ASSERT(rv == -1 && errno == EINVAL,
+		    "ioctl does not reject SIDA_WRITE in non-protected mode");
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+static void test_errors_cmpxchg(void)
+{
+	struct test_default t = test_default_init(guest_idle);
+	__uint128_t old;
+	int rv, i, power = 1;
+
+	HOST_SYNC(t.vcpu, STAGE_INITED);
+
+	for (i = 0; i < 32; i++) {
+		if (i == power) {
+			power *= 2;
+			continue;
+		}
+		rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR_V(mem1),
+			     CMPXCHG_OLD(&old));
+		TEST_ASSERT(rv == -1 && errno == EINVAL,
+			    "ioctl allows bad size for cmpxchg");
+	}
+	for (i = 1; i <= 16; i *= 2) {
+		rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR((void *)~0xfffUL),
+			     CMPXCHG_OLD(&old));
+		TEST_ASSERT(rv > 0, "ioctl allows bad guest address for cmpxchg");
+	}
+	for (i = 2; i <= 16; i *= 2) {
+		rv = ERR_MOP(t.vm, ABSOLUTE, CMPXCHG, mem1, i, GADDR_V(mem1 + 1),
+			     CMPXCHG_OLD(&old));
+		TEST_ASSERT(rv == -1 && errno == EINVAL,
+			    "ioctl allows bad alignment for cmpxchg");
+	}
+
+	kvm_vm_free(t.kvm_vm);
+}
+
+int main(int argc, char *argv[])
+{
+	int extension_cap, idx;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_MEM_OP));
+	extension_cap = kvm_check_cap(KVM_CAP_S390_MEM_OP_EXTENSION);
+
+	struct testdef {
+		const char *name;
+		void (*test)(void);
+		bool requirements_met;
+	} testlist[] = {
+		{
+			.name = "simple copy",
+			.test = test_copy,
+			.requirements_met = true,
+		},
+		{
+			.name = "generic error checks",
+			.test = test_errors,
+			.requirements_met = true,
+		},
+		{
+			.name = "copy with storage keys",
+			.test = test_copy_key,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "cmpxchg with storage keys",
+			.test = test_cmpxchg_key,
+			.requirements_met = extension_cap & 0x2,
+		},
+		{
+			.name = "concurrently cmpxchg with storage keys",
+			.test = test_cmpxchg_key_concurrent,
+			.requirements_met = extension_cap & 0x2,
+		},
+		{
+			.name = "copy with key storage protection override",
+			.test = test_copy_key_storage_prot_override,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "copy with key fetch protection",
+			.test = test_copy_key_fetch_prot,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "copy with key fetch protection override",
+			.test = test_copy_key_fetch_prot_override,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "copy with access register mode",
+			.test = test_copy_access_register,
+			.requirements_met = true,
+		},
+		{
+			.name = "error checks with key",
+			.test = test_errors_key,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "error checks for cmpxchg with key",
+			.test = test_errors_cmpxchg_key,
+			.requirements_met = extension_cap & 0x2,
+		},
+		{
+			.name = "error checks for cmpxchg",
+			.test = test_errors_cmpxchg,
+			.requirements_met = extension_cap & 0x2,
+		},
+		{
+			.name = "termination",
+			.test = test_termination,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "error checks with key storage protection override",
+			.test = test_errors_key_storage_prot_override,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "error checks without key fetch prot override",
+			.test = test_errors_key_fetch_prot_override_not_enabled,
+			.requirements_met = extension_cap > 0,
+		},
+		{
+			.name = "error checks with key fetch prot override",
+			.test = test_errors_key_fetch_prot_override_enabled,
+			.requirements_met = extension_cap > 0,
+		},
+	};
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(testlist));
+
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		if (testlist[idx].requirements_met) {
+			testlist[idx].test();
+			ksft_test_result_pass("%s\n", testlist[idx].name);
+		} else {
+			ksft_test_result_skip("%s - requirements not met (kernel has extension cap %#x)\n",
+					      testlist[idx].name, extension_cap);
+		}
+	}
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/s390/resets.c b/tools/testing/selftests/kvm/s390/resets.c
new file mode 100644
index 000000000000..b58f75b381e5
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/resets.c
@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test for s390x CPU resets
+ *
+ * Copyright (C) 2020, IBM
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "kselftest.h"
+
+#define LOCAL_IRQS 32
+
+#define ARBITRARY_NON_ZERO_VCPU_ID 3
+
+struct kvm_s390_irq buf[ARBITRARY_NON_ZERO_VCPU_ID + LOCAL_IRQS];
+
+static uint8_t regs_null[512];
+
+static void guest_code_initial(void)
+{
+	/* set several CRs to "safe" value */
+	unsigned long cr2_59 = 0x10;	/* enable guarded storage */
+	unsigned long cr8_63 = 0x1;	/* monitor mask = 1 */
+	unsigned long cr10 = 1;		/* PER START */
+	unsigned long cr11 = -1;	/* PER END */
+
+
+	/* Dirty registers */
+	asm volatile (
+		"	lghi	2,0x11\n"	/* Round toward 0 */
+		"	sfpc	2\n"		/* set fpc to !=0 */
+		"	lctlg	2,2,%0\n"
+		"	lctlg	8,8,%1\n"
+		"	lctlg	10,10,%2\n"
+		"	lctlg	11,11,%3\n"
+		/* now clobber some general purpose regs */
+		"	llihh	0,0xffff\n"
+		"	llihl	1,0x5555\n"
+		"	llilh	2,0xaaaa\n"
+		"	llill	3,0x0000\n"
+		/* now clobber a floating point reg */
+		"	lghi	4,0x1\n"
+		"	cdgbr	0,4\n"
+		/* now clobber an access reg */
+		"	sar	9,4\n"
+		/* We embed diag 501 here to control register content */
+		"	diag 0,0,0x501\n"
+		:
+		: "m" (cr2_59), "m" (cr8_63), "m" (cr10), "m" (cr11)
+		/* no clobber list as this should not return */
+		);
+}
+
+static void test_one_reg(struct kvm_vcpu *vcpu, uint64_t id, uint64_t value)
+{
+	uint64_t eval_reg;
+
+	eval_reg = vcpu_get_reg(vcpu, id);
+	TEST_ASSERT(eval_reg == value, "value == 0x%lx", value);
+}
+
+static void assert_noirq(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_irq_state irq_state;
+	int irqs;
+
+	irq_state.len = sizeof(buf);
+	irq_state.buf = (unsigned long)buf;
+	irqs = __vcpu_ioctl(vcpu, KVM_S390_GET_IRQ_STATE, &irq_state);
+	/*
+	 * irqs contains the number of retrieved interrupts. Any interrupt
+	 * (notably, the emergency call interrupt we have injected) should
+	 * be cleared by the resets, so this should be 0.
+	 */
+	TEST_ASSERT(irqs >= 0, "Could not fetch IRQs: errno %d", errno);
+	TEST_ASSERT(!irqs, "IRQ pending");
+}
+
+static void assert_clear(struct kvm_vcpu *vcpu)
+{
+	struct kvm_sync_regs *sync_regs = &vcpu->run->s.regs;
+	struct kvm_sregs sregs;
+	struct kvm_regs regs;
+	struct kvm_fpu fpu;
+
+	vcpu_regs_get(vcpu, &regs);
+	TEST_ASSERT(!memcmp(&regs.gprs, regs_null, sizeof(regs.gprs)), "grs == 0");
+
+	vcpu_sregs_get(vcpu, &sregs);
+	TEST_ASSERT(!memcmp(&sregs.acrs, regs_null, sizeof(sregs.acrs)), "acrs == 0");
+
+	vcpu_fpu_get(vcpu, &fpu);
+	TEST_ASSERT(!memcmp(&fpu.fprs, regs_null, sizeof(fpu.fprs)), "fprs == 0");
+
+	/* sync regs */
+	TEST_ASSERT(!memcmp(sync_regs->gprs, regs_null, sizeof(sync_regs->gprs)),
+		    "gprs0-15 == 0 (sync_regs)");
+
+	TEST_ASSERT(!memcmp(sync_regs->acrs, regs_null, sizeof(sync_regs->acrs)),
+		    "acrs0-15 == 0 (sync_regs)");
+
+	TEST_ASSERT(!memcmp(sync_regs->vrs, regs_null, sizeof(sync_regs->vrs)),
+		    "vrs0-15 == 0 (sync_regs)");
+}
+
+static void assert_initial_noclear(struct kvm_vcpu *vcpu)
+{
+	struct kvm_sync_regs *sync_regs = &vcpu->run->s.regs;
+
+	TEST_ASSERT(sync_regs->gprs[0] == 0xffff000000000000UL,
+		    "gpr0 == 0xffff000000000000 (sync_regs)");
+	TEST_ASSERT(sync_regs->gprs[1] == 0x0000555500000000UL,
+		    "gpr1 == 0x0000555500000000 (sync_regs)");
+	TEST_ASSERT(sync_regs->gprs[2] == 0x00000000aaaa0000UL,
+		    "gpr2 == 0x00000000aaaa0000 (sync_regs)");
+	TEST_ASSERT(sync_regs->gprs[3] == 0x0000000000000000UL,
+		    "gpr3 == 0x0000000000000000 (sync_regs)");
+	TEST_ASSERT(sync_regs->fprs[0] == 0x3ff0000000000000UL,
+		    "fpr0 == 0f1 (sync_regs)");
+	TEST_ASSERT(sync_regs->acrs[9] == 1, "ar9 == 1 (sync_regs)");
+}
+
+static void assert_initial(struct kvm_vcpu *vcpu)
+{
+	struct kvm_sync_regs *sync_regs = &vcpu->run->s.regs;
+	struct kvm_sregs sregs;
+	struct kvm_fpu fpu;
+
+	/* KVM_GET_SREGS */
+	vcpu_sregs_get(vcpu, &sregs);
+	TEST_ASSERT(sregs.crs[0] == 0xE0UL, "cr0 == 0xE0 (KVM_GET_SREGS)");
+	TEST_ASSERT(sregs.crs[14] == 0xC2000000UL,
+		    "cr14 == 0xC2000000 (KVM_GET_SREGS)");
+	TEST_ASSERT(!memcmp(&sregs.crs[1], regs_null, sizeof(sregs.crs[1]) * 12),
+		    "cr1-13 == 0 (KVM_GET_SREGS)");
+	TEST_ASSERT(sregs.crs[15] == 0, "cr15 == 0 (KVM_GET_SREGS)");
+
+	/* sync regs */
+	TEST_ASSERT(sync_regs->crs[0] == 0xE0UL, "cr0 == 0xE0 (sync_regs)");
+	TEST_ASSERT(sync_regs->crs[14] == 0xC2000000UL,
+		    "cr14 == 0xC2000000 (sync_regs)");
+	TEST_ASSERT(!memcmp(&sync_regs->crs[1], regs_null, 8 * 12),
+		    "cr1-13 == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->crs[15] == 0, "cr15 == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->fpc == 0, "fpc == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->todpr == 0, "todpr == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->cputm == 0, "cputm == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->ckc == 0, "ckc == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->pp == 0, "pp == 0 (sync_regs)");
+	TEST_ASSERT(sync_regs->gbea == 1, "gbea == 1 (sync_regs)");
+
+	/* kvm_run */
+	TEST_ASSERT(vcpu->run->psw_addr == 0, "psw_addr == 0 (kvm_run)");
+	TEST_ASSERT(vcpu->run->psw_mask == 0, "psw_mask == 0 (kvm_run)");
+
+	vcpu_fpu_get(vcpu, &fpu);
+	TEST_ASSERT(!fpu.fpc, "fpc == 0");
+
+	test_one_reg(vcpu, KVM_REG_S390_GBEA, 1);
+	test_one_reg(vcpu, KVM_REG_S390_PP, 0);
+	test_one_reg(vcpu, KVM_REG_S390_TODPR, 0);
+	test_one_reg(vcpu, KVM_REG_S390_CPU_TIMER, 0);
+	test_one_reg(vcpu, KVM_REG_S390_CLOCK_COMP, 0);
+}
+
+static void assert_normal_noclear(struct kvm_vcpu *vcpu)
+{
+	struct kvm_sync_regs *sync_regs = &vcpu->run->s.regs;
+
+	TEST_ASSERT(sync_regs->crs[2] == 0x10, "cr2 == 10 (sync_regs)");
+	TEST_ASSERT(sync_regs->crs[8] == 1, "cr10 == 1 (sync_regs)");
+	TEST_ASSERT(sync_regs->crs[10] == 1, "cr10 == 1 (sync_regs)");
+	TEST_ASSERT(sync_regs->crs[11] == -1, "cr11 == -1 (sync_regs)");
+}
+
+static void assert_normal(struct kvm_vcpu *vcpu)
+{
+	test_one_reg(vcpu, KVM_REG_S390_PFTOKEN, KVM_S390_PFAULT_TOKEN_INVALID);
+	TEST_ASSERT(vcpu->run->s.regs.pft == KVM_S390_PFAULT_TOKEN_INVALID,
+			"pft == 0xff.....  (sync_regs)");
+	assert_noirq(vcpu);
+}
+
+static void inject_irq(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_irq_state irq_state;
+	struct kvm_s390_irq *irq = &buf[0];
+	int irqs;
+
+	/* Inject IRQ */
+	irq_state.len = sizeof(struct kvm_s390_irq);
+	irq_state.buf = (unsigned long)buf;
+	irq->type = KVM_S390_INT_EMERGENCY;
+	irq->u.emerg.code = vcpu->id;
+	irqs = __vcpu_ioctl(vcpu, KVM_S390_SET_IRQ_STATE, &irq_state);
+	TEST_ASSERT(irqs >= 0, "Error injecting EMERGENCY IRQ errno %d", errno);
+}
+
+static struct kvm_vm *create_vm(struct kvm_vcpu **vcpu)
+{
+	struct kvm_vm *vm;
+
+	vm = vm_create(1);
+
+	*vcpu = vm_vcpu_add(vm, ARBITRARY_NON_ZERO_VCPU_ID, guest_code_initial);
+
+	return vm;
+}
+
+static void test_normal(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	ksft_print_msg("Testing normal reset\n");
+	vm = create_vm(&vcpu);
+
+	vcpu_run(vcpu);
+
+	inject_irq(vcpu);
+
+	vcpu_ioctl(vcpu, KVM_S390_NORMAL_RESET, NULL);
+
+	/* must clears */
+	assert_normal(vcpu);
+	/* must not clears */
+	assert_normal_noclear(vcpu);
+	assert_initial_noclear(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+static void test_initial(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	ksft_print_msg("Testing initial reset\n");
+	vm = create_vm(&vcpu);
+
+	vcpu_run(vcpu);
+
+	inject_irq(vcpu);
+
+	vcpu_ioctl(vcpu, KVM_S390_INITIAL_RESET, NULL);
+
+	/* must clears */
+	assert_normal(vcpu);
+	assert_initial(vcpu);
+	/* must not clears */
+	assert_initial_noclear(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+static void test_clear(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	ksft_print_msg("Testing clear reset\n");
+	vm = create_vm(&vcpu);
+
+	vcpu_run(vcpu);
+
+	inject_irq(vcpu);
+
+	vcpu_ioctl(vcpu, KVM_S390_CLEAR_RESET, NULL);
+
+	/* must clears */
+	assert_normal(vcpu);
+	assert_initial(vcpu);
+	assert_clear(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+struct testdef {
+	const char *name;
+	void (*test)(void);
+	bool needs_cap;
+} testlist[] = {
+	{ "initial", test_initial, false },
+	{ "normal", test_normal, true },
+	{ "clear", test_clear, true },
+};
+
+int main(int argc, char *argv[])
+{
+	bool has_s390_vcpu_resets = kvm_check_cap(KVM_CAP_S390_VCPU_RESETS);
+	int idx;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(testlist));
+
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		if (!testlist[idx].needs_cap || has_s390_vcpu_resets) {
+			testlist[idx].test();
+			ksft_test_result_pass("%s\n", testlist[idx].name);
+		} else {
+			ksft_test_result_skip("%s - no VCPU_RESETS capability\n",
+					      testlist[idx].name);
+		}
+	}
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/s390/shared_zeropage_test.c b/tools/testing/selftests/kvm/s390/shared_zeropage_test.c
new file mode 100644
index 000000000000..bba0d9a6dcc8
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/shared_zeropage_test.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test shared zeropage handling (with/without storage keys)
+ *
+ * Copyright (C) 2024, Red Hat, Inc.
+ */
+#include <sys/mman.h>
+
+#include <linux/fs.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "kselftest.h"
+#include "ucall_common.h"
+
+static void set_storage_key(void *addr, uint8_t skey)
+{
+	asm volatile("sske %0,%1" : : "d" (skey), "a" (addr));
+}
+
+static void guest_code(void)
+{
+	/* Issue some storage key instruction. */
+	set_storage_key((void *)0, 0x98);
+	GUEST_DONE();
+}
+
+/*
+ * Returns 1 if the shared zeropage is mapped, 0 if something else is mapped.
+ * Returns < 0 on error or if nothing is mapped.
+ */
+static int maps_shared_zeropage(int pagemap_fd, void *addr)
+{
+	struct page_region region;
+	struct pm_scan_arg arg = {
+		.start = (uintptr_t)addr,
+		.end = (uintptr_t)addr + 4096,
+		.vec = (uintptr_t)&region,
+		.vec_len = 1,
+		.size = sizeof(struct pm_scan_arg),
+		.category_mask = PAGE_IS_PFNZERO,
+		.category_anyof_mask = PAGE_IS_PRESENT,
+		.return_mask = PAGE_IS_PFNZERO,
+	};
+	return ioctl(pagemap_fd, PAGEMAP_SCAN, &arg);
+}
+
+int main(int argc, char *argv[])
+{
+	char *mem, *page0, *page1, *page2, tmp;
+	const size_t pagesize = getpagesize();
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int pagemap_fd;
+
+	ksft_print_header();
+	ksft_set_plan(3);
+
+	/*
+	 * We'll use memory that is not mapped into the VM for simplicity.
+	 * Shared zeropages are enabled/disabled per-process.
+	 */
+	mem = mmap(0, 3 * pagesize, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);
+	TEST_ASSERT(mem != MAP_FAILED, "mmap() failed");
+
+	/* Disable THP. Ignore errors on older kernels. */
+	madvise(mem, 3 * pagesize, MADV_NOHUGEPAGE);
+
+	page0 = mem;
+	page1 = page0 + pagesize;
+	page2 = page1 + pagesize;
+
+	/* Can we even detect shared zeropages? */
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	TEST_REQUIRE(pagemap_fd >= 0);
+
+	tmp = *page0;
+	asm volatile("" : "+r" (tmp));
+	TEST_REQUIRE(maps_shared_zeropage(pagemap_fd, page0) == 1);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	/* Verify that we get the shared zeropage after VM creation. */
+	tmp = *page1;
+	asm volatile("" : "+r" (tmp));
+	ksft_test_result(maps_shared_zeropage(pagemap_fd, page1) == 1,
+			 "Shared zeropages should be enabled\n");
+
+	/*
+	 * Let our VM execute a storage key instruction that should
+	 * unshare all shared zeropages.
+	 */
+	vcpu_run(vcpu);
+	get_ucall(vcpu, &uc);
+	TEST_ASSERT_EQ(uc.cmd, UCALL_DONE);
+
+	/* Verify that we don't have a shared zeropage anymore. */
+	ksft_test_result(!maps_shared_zeropage(pagemap_fd, page1),
+			 "Shared zeropage should be gone\n");
+
+	/* Verify that we don't get any new shared zeropages. */
+	tmp = *page2;
+	asm volatile("" : "+r" (tmp));
+	ksft_test_result(!maps_shared_zeropage(pagemap_fd, page2),
+			 "Shared zeropages should be disabled\n");
+
+	kvm_vm_free(vm);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/s390/sync_regs_test.c b/tools/testing/selftests/kvm/s390/sync_regs_test.c
new file mode 100644
index 000000000000..53def355ccba
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/sync_regs_test.c
@@ -0,0 +1,238 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test for s390x KVM_CAP_SYNC_REGS
+ *
+ * Based on the same test for x86:
+ * Copyright (C) 2018, Google LLC.
+ *
+ * Adaptions for s390x:
+ * Copyright (C) 2019, Red Hat, Inc.
+ *
+ * Test expected behavior of the KVM_CAP_SYNC_REGS functionality.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "diag318_test_handler.h"
+#include "kselftest.h"
+
+static void guest_code(void)
+{
+	/*
+	 * We embed diag 501 here instead of doing a ucall to avoid that
+	 * the compiler has messed with r11 at the time of the ucall.
+	 */
+	asm volatile (
+		"0:	diag 0,0,0x501\n"
+		"	ahi 11,1\n"
+		"	j 0b\n"
+	);
+}
+
+#define REG_COMPARE(reg) \
+	TEST_ASSERT(left->reg == right->reg, \
+		    "Register " #reg \
+		    " values did not match: 0x%llx, 0x%llx", \
+		    left->reg, right->reg)
+
+#define REG_COMPARE32(reg) \
+	TEST_ASSERT(left->reg == right->reg, \
+		    "Register " #reg \
+		    " values did not match: 0x%x, 0x%x", \
+		    left->reg, right->reg)
+
+
+static void compare_regs(struct kvm_regs *left, struct kvm_sync_regs *right)
+{
+	int i;
+
+	for (i = 0; i < 16; i++)
+		REG_COMPARE(gprs[i]);
+}
+
+static void compare_sregs(struct kvm_sregs *left, struct kvm_sync_regs *right)
+{
+	int i;
+
+	for (i = 0; i < 16; i++)
+		REG_COMPARE32(acrs[i]);
+
+	for (i = 0; i < 16; i++)
+		REG_COMPARE(crs[i]);
+}
+
+#undef REG_COMPARE
+
+#define TEST_SYNC_FIELDS   (KVM_SYNC_GPRS|KVM_SYNC_ACRS|KVM_SYNC_CRS|KVM_SYNC_DIAG318)
+#define INVALID_SYNC_FIELD 0x80000000
+
+void test_read_invalid(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	int rv;
+
+	/* Request reading invalid register set from VCPU. */
+	run->kvm_valid_regs = INVALID_SYNC_FIELD;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_valid_regs = 0;
+
+	run->kvm_valid_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_valid_regs = 0;
+}
+
+void test_set_invalid(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	int rv;
+
+	/* Request setting invalid register set into VCPU. */
+	run->kvm_dirty_regs = INVALID_SYNC_FIELD;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_dirty_regs = 0;
+
+	run->kvm_dirty_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_dirty_regs = 0;
+}
+
+void test_req_and_verify_all_valid_regs(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_sregs sregs;
+	struct kvm_regs regs;
+	int rv;
+
+	/* Request and verify all valid register sets. */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv == 0, "vcpu_run failed: %d", rv);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT(run->s390_sieic.icptcode == 4 &&
+		    (run->s390_sieic.ipa >> 8) == 0x83 &&
+		    (run->s390_sieic.ipb >> 16) == 0x501,
+		    "Unexpected interception code: ic=%u, ipa=0x%x, ipb=0x%x",
+		    run->s390_sieic.icptcode, run->s390_sieic.ipa,
+		    run->s390_sieic.ipb);
+
+	vcpu_regs_get(vcpu, &regs);
+	compare_regs(&regs, &run->s.regs);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	compare_sregs(&sregs, &run->s.regs);
+}
+
+void test_set_and_verify_various_reg_values(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_sregs sregs;
+	struct kvm_regs regs;
+	int rv;
+
+	/* Set and verify various register values */
+	run->s.regs.gprs[11] = 0xBAD1DEA;
+	run->s.regs.acrs[0] = 1 << 11;
+
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	run->kvm_dirty_regs = KVM_SYNC_GPRS | KVM_SYNC_ACRS;
+
+	if (get_diag318_info() > 0) {
+		run->s.regs.diag318 = get_diag318_info();
+		run->kvm_dirty_regs |= KVM_SYNC_DIAG318;
+	}
+
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv == 0, "vcpu_run failed: %d", rv);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT(run->s.regs.gprs[11] == 0xBAD1DEA + 1,
+		    "r11 sync regs value incorrect 0x%llx.",
+		    run->s.regs.gprs[11]);
+	TEST_ASSERT(run->s.regs.acrs[0]  == 1 << 11,
+		    "acr0 sync regs value incorrect 0x%x.",
+		    run->s.regs.acrs[0]);
+	TEST_ASSERT(run->s.regs.diag318 == get_diag318_info(),
+		    "diag318 sync regs value incorrect 0x%llx.",
+		    run->s.regs.diag318);
+
+	vcpu_regs_get(vcpu, &regs);
+	compare_regs(&regs, &run->s.regs);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	compare_sregs(&sregs, &run->s.regs);
+}
+
+void test_clear_kvm_dirty_regs_bits(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	int rv;
+
+	/* Clear kvm_dirty_regs bits, verify new s.regs values are
+	 * overwritten with existing guest values.
+	 */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	run->kvm_dirty_regs = 0;
+	run->s.regs.gprs[11] = 0xDEADBEEF;
+	run->s.regs.diag318 = 0x4B1D;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv == 0, "vcpu_run failed: %d", rv);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT(run->s.regs.gprs[11] != 0xDEADBEEF,
+		    "r11 sync regs value incorrect 0x%llx.",
+		    run->s.regs.gprs[11]);
+	TEST_ASSERT(run->s.regs.diag318 != 0x4B1D,
+		    "diag318 sync regs value incorrect 0x%llx.",
+		    run->s.regs.diag318);
+}
+
+struct testdef {
+	const char *name;
+	void (*test)(struct kvm_vcpu *vcpu);
+} testlist[] = {
+	{ "read invalid", test_read_invalid },
+	{ "set invalid", test_set_invalid },
+	{ "request+verify all valid regs", test_req_and_verify_all_valid_regs },
+	{ "set+verify various regs", test_set_and_verify_various_reg_values },
+	{ "clear kvm_dirty_regs bits", test_clear_kvm_dirty_regs_bits },
+};
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int idx;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SYNC_REGS));
+
+	ksft_print_header();
+
+	ksft_set_plan(ARRAY_SIZE(testlist));
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		testlist[idx].test(vcpu);
+		ksft_test_result_pass("%s\n", testlist[idx].name);
+	}
+
+	kvm_vm_free(vm);
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/s390/tprot.c b/tools/testing/selftests/kvm/s390/tprot.c
new file mode 100644
index 000000000000..12d5e1cb62e3
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/tprot.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test TEST PROTECTION emulation.
+ *
+ * Copyright IBM Corp. 2021
+ */
+#include <sys/mman.h>
+#include "test_util.h"
+#include "kvm_util.h"
+#include "kselftest.h"
+#include "ucall_common.h"
+#include "processor.h"
+
+#define CR0_FETCH_PROTECTION_OVERRIDE	(1UL << (63 - 38))
+#define CR0_STORAGE_PROTECTION_OVERRIDE	(1UL << (63 - 39))
+
+static __aligned(PAGE_SIZE) uint8_t pages[2][PAGE_SIZE];
+static uint8_t *const page_store_prot = pages[0];
+static uint8_t *const page_fetch_prot = pages[1];
+
+/* Nonzero return value indicates that address not mapped */
+static int set_storage_key(void *addr, uint8_t key)
+{
+	int not_mapped = 0;
+
+	asm volatile (
+		       "lra	%[addr], 0(0,%[addr])\n"
+		"	jz	0f\n"
+		"	llill	%[not_mapped],1\n"
+		"	j	1f\n"
+		"0:	sske	%[key], %[addr]\n"
+		"1:"
+		: [addr] "+&a" (addr), [not_mapped] "+r" (not_mapped)
+		: [key] "r" (key)
+		: "cc"
+	);
+	return -not_mapped;
+}
+
+enum permission {
+	READ_WRITE = 0,
+	READ = 1,
+	RW_PROTECTED = 2,
+	TRANSL_UNAVAIL = 3,
+};
+
+static enum permission test_protection(void *addr, uint8_t key)
+{
+	uint64_t mask;
+
+	asm volatile (
+		       "tprot	%[addr], 0(%[key])\n"
+		"	ipm	%[mask]\n"
+		: [mask] "=r" (mask)
+		: [addr] "Q" (*(char *)addr),
+		  [key] "a" (key)
+		: "cc"
+	);
+
+	return (enum permission)(mask >> 28);
+}
+
+enum stage {
+	STAGE_INIT_SIMPLE,
+	TEST_SIMPLE,
+	STAGE_INIT_FETCH_PROT_OVERRIDE,
+	TEST_FETCH_PROT_OVERRIDE,
+	TEST_STORAGE_PROT_OVERRIDE,
+	STAGE_END	/* must be the last entry (it's the amount of tests) */
+};
+
+struct test {
+	enum stage stage;
+	void *addr;
+	uint8_t key;
+	enum permission expected;
+} tests[] = {
+	/*
+	 * We perform each test in the array by executing TEST PROTECTION on
+	 * the specified addr with the specified key and checking if the returned
+	 * permissions match the expected value.
+	 * Both guest and host cooperate to set up the required test conditions.
+	 * A central condition is that the page targeted by addr has to be DAT
+	 * protected in the host mappings, in order for KVM to emulate the
+	 * TEST PROTECTION instruction.
+	 * Since the page tables are shared, the host uses mprotect to achieve
+	 * this.
+	 *
+	 * Test resulting in RW_PROTECTED/TRANSL_UNAVAIL will be interpreted
+	 * by SIE, not KVM, but there is no harm in testing them also.
+	 * See Enhanced Suppression-on-Protection Facilities in the
+	 * Interpretive-Execution Mode
+	 */
+	/*
+	 * guest: set storage key of page_store_prot to 1
+	 *        storage key of page_fetch_prot to 9 and enable
+	 *        protection for it
+	 * STAGE_INIT_SIMPLE
+	 * host: write protect both via mprotect
+	 */
+	/* access key 0 matches any storage key -> RW */
+	{ TEST_SIMPLE, page_store_prot, 0x00, READ_WRITE },
+	/* access key matches storage key -> RW */
+	{ TEST_SIMPLE, page_store_prot, 0x10, READ_WRITE },
+	/* mismatched keys, but no fetch protection -> RO */
+	{ TEST_SIMPLE, page_store_prot, 0x20, READ },
+	/* access key 0 matches any storage key -> RW */
+	{ TEST_SIMPLE, page_fetch_prot, 0x00, READ_WRITE },
+	/* access key matches storage key -> RW */
+	{ TEST_SIMPLE, page_fetch_prot, 0x90, READ_WRITE },
+	/* mismatched keys, fetch protection -> inaccessible */
+	{ TEST_SIMPLE, page_fetch_prot, 0x10, RW_PROTECTED },
+	/* page 0 not mapped yet -> translation not available */
+	{ TEST_SIMPLE, (void *)0x00, 0x10, TRANSL_UNAVAIL },
+	/*
+	 * host: try to map page 0
+	 * guest: set storage key of page 0 to 9 and enable fetch protection
+	 * STAGE_INIT_FETCH_PROT_OVERRIDE
+	 * host: write protect page 0
+	 *       enable fetch protection override
+	 */
+	/* mismatched keys, fetch protection, but override applies -> RO */
+	{ TEST_FETCH_PROT_OVERRIDE, (void *)0x00, 0x10, READ },
+	/* mismatched keys, fetch protection, override applies to 0-2048 only -> inaccessible */
+	{ TEST_FETCH_PROT_OVERRIDE, (void *)2049, 0x10, RW_PROTECTED },
+	/*
+	 * host: enable storage protection override
+	 */
+	/* mismatched keys, but override applies (storage key 9) -> RW */
+	{ TEST_STORAGE_PROT_OVERRIDE, page_fetch_prot, 0x10, READ_WRITE },
+	/* mismatched keys, no fetch protection, override doesn't apply -> RO */
+	{ TEST_STORAGE_PROT_OVERRIDE, page_store_prot, 0x20, READ },
+	/* mismatched keys, but override applies (storage key 9) -> RW */
+	{ TEST_STORAGE_PROT_OVERRIDE, (void *)2049, 0x10, READ_WRITE },
+	/* end marker */
+	{ STAGE_END, 0, 0, 0 },
+};
+
+static enum stage perform_next_stage(int *i, bool mapped_0)
+{
+	enum stage stage = tests[*i].stage;
+	enum permission result;
+	bool skip;
+
+	for (; tests[*i].stage == stage; (*i)++) {
+		/*
+		 * Some fetch protection override tests require that page 0
+		 * be mapped, however, when the hosts tries to map that page via
+		 * vm_vaddr_alloc, it may happen that some other page gets mapped
+		 * instead.
+		 * In order to skip these tests we detect this inside the guest
+		 */
+		skip = tests[*i].addr < (void *)PAGE_SIZE &&
+		       tests[*i].expected != TRANSL_UNAVAIL &&
+		       !mapped_0;
+		if (!skip) {
+			result = test_protection(tests[*i].addr, tests[*i].key);
+			__GUEST_ASSERT(result == tests[*i].expected,
+				       "Wanted %u, got %u, for i = %u",
+				       tests[*i].expected, result, *i);
+		}
+	}
+	return stage;
+}
+
+static void guest_code(void)
+{
+	bool mapped_0;
+	int i = 0;
+
+	GUEST_ASSERT_EQ(set_storage_key(page_store_prot, 0x10), 0);
+	GUEST_ASSERT_EQ(set_storage_key(page_fetch_prot, 0x98), 0);
+	GUEST_SYNC(STAGE_INIT_SIMPLE);
+	GUEST_SYNC(perform_next_stage(&i, false));
+
+	/* Fetch-protection override */
+	mapped_0 = !set_storage_key((void *)0, 0x98);
+	GUEST_SYNC(STAGE_INIT_FETCH_PROT_OVERRIDE);
+	GUEST_SYNC(perform_next_stage(&i, mapped_0));
+
+	/* Storage-protection override */
+	GUEST_SYNC(perform_next_stage(&i, mapped_0));
+}
+
+#define HOST_SYNC_NO_TAP(vcpup, stage)				\
+({								\
+	struct kvm_vcpu *__vcpu = (vcpup);			\
+	struct ucall uc;					\
+	int __stage = (stage);					\
+								\
+	vcpu_run(__vcpu);					\
+	get_ucall(__vcpu, &uc);					\
+	if (uc.cmd == UCALL_ABORT)				\
+		REPORT_GUEST_ASSERT(uc);			\
+	TEST_ASSERT_EQ(uc.cmd, UCALL_SYNC);			\
+	TEST_ASSERT_EQ(uc.args[1], __stage);			\
+})
+
+#define HOST_SYNC(vcpu, stage)			\
+({						\
+	HOST_SYNC_NO_TAP(vcpu, stage);		\
+	ksft_test_result_pass("" #stage "\n");	\
+})
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_run *run;
+	vm_vaddr_t guest_0_page;
+
+	ksft_print_header();
+	ksft_set_plan(STAGE_END);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	run = vcpu->run;
+
+	HOST_SYNC(vcpu, STAGE_INIT_SIMPLE);
+	mprotect(addr_gva2hva(vm, (vm_vaddr_t)pages), PAGE_SIZE * 2, PROT_READ);
+	HOST_SYNC(vcpu, TEST_SIMPLE);
+
+	guest_0_page = vm_vaddr_alloc(vm, PAGE_SIZE, 0);
+	if (guest_0_page != 0) {
+		/* Use NO_TAP so we don't get a PASS print */
+		HOST_SYNC_NO_TAP(vcpu, STAGE_INIT_FETCH_PROT_OVERRIDE);
+		ksft_test_result_skip("STAGE_INIT_FETCH_PROT_OVERRIDE - "
+				      "Did not allocate page at 0\n");
+	} else {
+		HOST_SYNC(vcpu, STAGE_INIT_FETCH_PROT_OVERRIDE);
+	}
+	if (guest_0_page == 0)
+		mprotect(addr_gva2hva(vm, (vm_vaddr_t)0), PAGE_SIZE, PROT_READ);
+	run->s.regs.crs[0] |= CR0_FETCH_PROTECTION_OVERRIDE;
+	run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(vcpu, TEST_FETCH_PROT_OVERRIDE);
+
+	run->s.regs.crs[0] |= CR0_STORAGE_PROTECTION_OVERRIDE;
+	run->kvm_dirty_regs = KVM_SYNC_CRS;
+	HOST_SYNC(vcpu, TEST_STORAGE_PROT_OVERRIDE);
+
+	kvm_vm_free(vm);
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/s390/ucontrol_test.c b/tools/testing/selftests/kvm/s390/ucontrol_test.c
new file mode 100644
index 000000000000..50bc1c38225a
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/ucontrol_test.c
@@ -0,0 +1,798 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test code for the s390x kvm ucontrol interface
+ *
+ * Copyright IBM Corp. 2024
+ *
+ * Authors:
+ *  Christoph Schlameuss <schlameuss@linux.ibm.com>
+ */
+#include "debug_print.h"
+#include "kselftest_harness.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "sie.h"
+
+#include <linux/capability.h>
+#include <linux/sizes.h>
+
+#define PGM_SEGMENT_TRANSLATION 0x10
+
+#define VM_MEM_SIZE (4 * SZ_1M)
+#define VM_MEM_EXT_SIZE (2 * SZ_1M)
+#define VM_MEM_MAX_M ((VM_MEM_SIZE + VM_MEM_EXT_SIZE) / SZ_1M)
+
+/* so directly declare capget to check caps without libcap */
+int capget(cap_user_header_t header, cap_user_data_t data);
+
+/**
+ * In order to create user controlled virtual machines on S390,
+ * check KVM_CAP_S390_UCONTROL and use the flag KVM_VM_S390_UCONTROL
+ * as privileged user (SYS_ADMIN).
+ */
+void require_ucontrol_admin(void)
+{
+	struct __user_cap_data_struct data[_LINUX_CAPABILITY_U32S_3];
+	struct __user_cap_header_struct hdr = {
+		.version = _LINUX_CAPABILITY_VERSION_3,
+	};
+	int rc;
+
+	rc = capget(&hdr, data);
+	TEST_ASSERT_EQ(0, rc);
+	TEST_REQUIRE((data->effective & CAP_TO_MASK(CAP_SYS_ADMIN)) > 0);
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_UCONTROL));
+}
+
+/* Test program setting some registers and looping */
+extern char test_gprs_asm[];
+asm("test_gprs_asm:\n"
+	"xgr	%r0, %r0\n"
+	"lgfi	%r1,1\n"
+	"lgfi	%r2,2\n"
+	"lgfi	%r3,3\n"
+	"lgfi	%r4,4\n"
+	"lgfi	%r5,5\n"
+	"lgfi	%r6,6\n"
+	"lgfi	%r7,7\n"
+	"0:\n"
+	"	diag	0,0,0x44\n"
+	"	ahi	%r0,1\n"
+	"	j	0b\n"
+);
+
+/* Test program manipulating memory */
+extern char test_mem_asm[];
+asm("test_mem_asm:\n"
+	"xgr	%r0, %r0\n"
+
+	"0:\n"
+	"	ahi	%r0,1\n"
+	"	st	%r1,0(%r5,%r6)\n"
+
+	"	xgr	%r1,%r1\n"
+	"	l	%r1,0(%r5,%r6)\n"
+	"	ahi	%r0,1\n"
+	"	diag	0,0,0x44\n"
+
+	"	j	0b\n"
+);
+
+/* Test program manipulating storage keys */
+extern char test_skey_asm[];
+asm("test_skey_asm:\n"
+	"xgr	%r0, %r0\n"
+
+	"0:\n"
+	"	ahi	%r0,1\n"
+	"	st	%r1,0(%r5,%r6)\n"
+
+	"	sske	%r1,%r6\n"
+	"	xgr	%r1,%r1\n"
+	"	iske	%r1,%r6\n"
+	"	ahi	%r0,1\n"
+	"	diag	0,0,0x44\n"
+
+	"	rrbe	%r1,%r6\n"
+	"	iske	%r1,%r6\n"
+	"	ahi	%r0,1\n"
+	"	diag	0,0,0x44\n"
+
+	"	j	0b\n"
+);
+
+FIXTURE(uc_kvm)
+{
+	struct kvm_s390_sie_block *sie_block;
+	struct kvm_run *run;
+	uintptr_t base_gpa;
+	uintptr_t code_gpa;
+	uintptr_t base_hva;
+	uintptr_t code_hva;
+	int kvm_run_size;
+	vm_paddr_t pgd;
+	void *vm_mem;
+	int vcpu_fd;
+	int kvm_fd;
+	int vm_fd;
+};
+
+/**
+ * create VM with single vcpu, map kvm_run and SIE control block for easy access
+ */
+FIXTURE_SETUP(uc_kvm)
+{
+	struct kvm_s390_vm_cpu_processor info;
+	int rc;
+
+	require_ucontrol_admin();
+
+	self->kvm_fd = open_kvm_dev_path_or_exit();
+	self->vm_fd = ioctl(self->kvm_fd, KVM_CREATE_VM, KVM_VM_S390_UCONTROL);
+	ASSERT_GE(self->vm_fd, 0);
+
+	kvm_device_attr_get(self->vm_fd, KVM_S390_VM_CPU_MODEL,
+			    KVM_S390_VM_CPU_PROCESSOR, &info);
+	TH_LOG("create VM 0x%llx", info.cpuid);
+
+	self->vcpu_fd = ioctl(self->vm_fd, KVM_CREATE_VCPU, 0);
+	ASSERT_GE(self->vcpu_fd, 0);
+
+	self->kvm_run_size = ioctl(self->kvm_fd, KVM_GET_VCPU_MMAP_SIZE, NULL);
+	ASSERT_GE(self->kvm_run_size, sizeof(struct kvm_run))
+		  TH_LOG(KVM_IOCTL_ERROR(KVM_GET_VCPU_MMAP_SIZE, self->kvm_run_size));
+	self->run = kvm_mmap(self->kvm_run_size, PROT_READ | PROT_WRITE,
+			     MAP_SHARED, self->vcpu_fd);
+	/**
+	 * For virtual cpus that have been created with S390 user controlled
+	 * virtual machines, the resulting vcpu fd can be memory mapped at page
+	 * offset KVM_S390_SIE_PAGE_OFFSET in order to obtain a memory map of
+	 * the virtual cpu's hardware control block.
+	 */
+	self->sie_block = __kvm_mmap(PAGE_SIZE, PROT_READ | PROT_WRITE,
+				     MAP_SHARED, self->vcpu_fd,
+				     KVM_S390_SIE_PAGE_OFFSET << PAGE_SHIFT);
+
+	TH_LOG("VM created %p %p", self->run, self->sie_block);
+
+	self->base_gpa = 0;
+	self->code_gpa = self->base_gpa + (3 * SZ_1M);
+
+	self->vm_mem = aligned_alloc(SZ_1M, VM_MEM_MAX_M * SZ_1M);
+	ASSERT_NE(NULL, self->vm_mem) TH_LOG("malloc failed %u", errno);
+	self->base_hva = (uintptr_t)self->vm_mem;
+	self->code_hva = self->base_hva - self->base_gpa + self->code_gpa;
+	struct kvm_s390_ucas_mapping map = {
+		.user_addr = self->base_hva,
+		.vcpu_addr = self->base_gpa,
+		.length = VM_MEM_SIZE,
+	};
+	TH_LOG("ucas map %p %p 0x%llx",
+	       (void *)map.user_addr, (void *)map.vcpu_addr, map.length);
+	rc = ioctl(self->vcpu_fd, KVM_S390_UCAS_MAP, &map);
+	ASSERT_EQ(0, rc) TH_LOG("ucas map result %d not expected, %s",
+				rc, strerror(errno));
+
+	TH_LOG("page in %p", (void *)self->base_gpa);
+	rc = ioctl(self->vcpu_fd, KVM_S390_VCPU_FAULT, self->base_gpa);
+	ASSERT_EQ(0, rc) TH_LOG("vcpu fault (%p) result %d not expected, %s",
+				(void *)self->base_hva, rc, strerror(errno));
+
+	self->sie_block->cpuflags &= ~CPUSTAT_STOPPED;
+}
+
+FIXTURE_TEARDOWN(uc_kvm)
+{
+	kvm_munmap(self->sie_block, PAGE_SIZE);
+	kvm_munmap(self->run, self->kvm_run_size);
+	close(self->vcpu_fd);
+	close(self->vm_fd);
+	close(self->kvm_fd);
+	free(self->vm_mem);
+}
+
+TEST_F(uc_kvm, uc_sie_assertions)
+{
+	/* assert interception of Code 08 (Program Interruption) is set */
+	EXPECT_EQ(0, self->sie_block->ecb & ECB_SPECI);
+}
+
+TEST_F(uc_kvm, uc_attr_mem_limit)
+{
+	u64 limit;
+	struct kvm_device_attr attr = {
+		.group = KVM_S390_VM_MEM_CTRL,
+		.attr = KVM_S390_VM_MEM_LIMIT_SIZE,
+		.addr = (u64)&limit,
+	};
+	int rc;
+
+	rc = ioctl(self->vm_fd, KVM_HAS_DEVICE_ATTR, &attr);
+	EXPECT_EQ(0, rc);
+
+	rc = ioctl(self->vm_fd, KVM_GET_DEVICE_ATTR, &attr);
+	EXPECT_EQ(0, rc);
+	EXPECT_EQ(~0UL, limit);
+
+	/* assert set not supported */
+	rc = ioctl(self->vm_fd, KVM_SET_DEVICE_ATTR, &attr);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+}
+
+TEST_F(uc_kvm, uc_no_dirty_log)
+{
+	struct kvm_dirty_log dlog;
+	int rc;
+
+	rc = ioctl(self->vm_fd, KVM_GET_DIRTY_LOG, &dlog);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+}
+
+/**
+ * Assert HPAGE CAP cannot be enabled on UCONTROL VM
+ */
+TEST(uc_cap_hpage)
+{
+	int rc, kvm_fd, vm_fd, vcpu_fd;
+	struct kvm_enable_cap cap = {
+		.cap = KVM_CAP_S390_HPAGE_1M,
+	};
+
+	require_ucontrol_admin();
+
+	kvm_fd = open_kvm_dev_path_or_exit();
+	vm_fd = ioctl(kvm_fd, KVM_CREATE_VM, KVM_VM_S390_UCONTROL);
+	ASSERT_GE(vm_fd, 0);
+
+	/* assert hpages are not supported on ucontrol vm */
+	rc = ioctl(vm_fd, KVM_CHECK_EXTENSION, KVM_CAP_S390_HPAGE_1M);
+	EXPECT_EQ(0, rc);
+
+	/* Test that KVM_CAP_S390_HPAGE_1M can't be enabled for a ucontrol vm */
+	rc = ioctl(vm_fd, KVM_ENABLE_CAP, cap);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+
+	/* assert HPAGE CAP is rejected after vCPU creation */
+	vcpu_fd = ioctl(vm_fd, KVM_CREATE_VCPU, 0);
+	ASSERT_GE(vcpu_fd, 0);
+	rc = ioctl(vm_fd, KVM_ENABLE_CAP, cap);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EBUSY, errno);
+
+	close(vcpu_fd);
+	close(vm_fd);
+	close(kvm_fd);
+}
+
+/* calculate host virtual addr from guest physical addr */
+static void *gpa2hva(FIXTURE_DATA(uc_kvm) *self, u64 gpa)
+{
+	return (void *)(self->base_hva - self->base_gpa + gpa);
+}
+
+/* map / make additional memory available */
+static int uc_map_ext(FIXTURE_DATA(uc_kvm) *self, u64 vcpu_addr, u64 length)
+{
+	struct kvm_s390_ucas_mapping map = {
+		.user_addr = (u64)gpa2hva(self, vcpu_addr),
+		.vcpu_addr = vcpu_addr,
+		.length = length,
+	};
+	pr_info("ucas map %p %p 0x%llx",
+		(void *)map.user_addr, (void *)map.vcpu_addr, map.length);
+	return ioctl(self->vcpu_fd, KVM_S390_UCAS_MAP, &map);
+}
+
+/* unmap previously mapped memory */
+static int uc_unmap_ext(FIXTURE_DATA(uc_kvm) *self, u64 vcpu_addr, u64 length)
+{
+	struct kvm_s390_ucas_mapping map = {
+		.user_addr = (u64)gpa2hva(self, vcpu_addr),
+		.vcpu_addr = vcpu_addr,
+		.length = length,
+	};
+	pr_info("ucas unmap %p %p 0x%llx",
+		(void *)map.user_addr, (void *)map.vcpu_addr, map.length);
+	return ioctl(self->vcpu_fd, KVM_S390_UCAS_UNMAP, &map);
+}
+
+/* handle ucontrol exit by mapping the accessed segment */
+static void uc_handle_exit_ucontrol(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_run *run = self->run;
+	u64 seg_addr;
+	int rc;
+
+	TEST_ASSERT_EQ(KVM_EXIT_S390_UCONTROL, run->exit_reason);
+	switch (run->s390_ucontrol.pgm_code) {
+	case PGM_SEGMENT_TRANSLATION:
+		seg_addr = run->s390_ucontrol.trans_exc_code & ~(SZ_1M - 1);
+		pr_info("ucontrol pic segment translation 0x%llx, mapping segment 0x%lx\n",
+			run->s390_ucontrol.trans_exc_code, seg_addr);
+		/* map / make additional memory available */
+		rc = uc_map_ext(self, seg_addr, SZ_1M);
+		TEST_ASSERT_EQ(0, rc);
+		break;
+	default:
+		TEST_FAIL("UNEXPECTED PGM CODE %d", run->s390_ucontrol.pgm_code);
+	}
+}
+
+/*
+ * Handle the SIEIC exit
+ * * fail on codes not expected in the test cases
+ * Returns if interception is handled / execution can be continued
+ */
+static void uc_skey_enable(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_s390_sie_block *sie_block = self->sie_block;
+
+	/* disable KSS */
+	sie_block->cpuflags &= ~CPUSTAT_KSS;
+	/* disable skey inst interception */
+	sie_block->ictl &= ~(ICTL_ISKE | ICTL_SSKE | ICTL_RRBE);
+}
+
+/*
+ * Handle the instruction intercept
+ * Returns if interception is handled / execution can be continued
+ */
+static bool uc_handle_insn_ic(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_s390_sie_block *sie_block = self->sie_block;
+	int ilen = insn_length(sie_block->ipa >> 8);
+	struct kvm_run *run = self->run;
+
+	switch (run->s390_sieic.ipa) {
+	case 0xB229: /* ISKE */
+	case 0xB22b: /* SSKE */
+	case 0xB22a: /* RRBE */
+		uc_skey_enable(self);
+
+		/* rewind to reexecute intercepted instruction */
+		run->psw_addr = run->psw_addr - ilen;
+		pr_info("rewind guest addr to 0x%.16llx\n", run->psw_addr);
+		return true;
+	default:
+		return false;
+	}
+}
+
+/*
+ * Handle the SIEIC exit
+ * * fail on codes not expected in the test cases
+ * Returns if interception is handled / execution can be continued
+ */
+static bool uc_handle_sieic(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_s390_sie_block *sie_block = self->sie_block;
+	struct kvm_run *run = self->run;
+
+	/* check SIE interception code */
+	pr_info("sieic: 0x%.2x 0x%.4x 0x%.8x\n",
+		run->s390_sieic.icptcode,
+		run->s390_sieic.ipa,
+		run->s390_sieic.ipb);
+	switch (run->s390_sieic.icptcode) {
+	case ICPT_INST:
+		/* end execution in caller on intercepted instruction */
+		pr_info("sie instruction interception\n");
+		return uc_handle_insn_ic(self);
+	case ICPT_KSS:
+		uc_skey_enable(self);
+		return true;
+	case ICPT_OPEREXC:
+		/* operation exception */
+		TEST_FAIL("sie exception on %.4x%.8x", sie_block->ipa, sie_block->ipb);
+	default:
+		TEST_FAIL("UNEXPECTED SIEIC CODE %d", run->s390_sieic.icptcode);
+	}
+	return true;
+}
+
+/* verify VM state on exit */
+static bool uc_handle_exit(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_run *run = self->run;
+
+	switch (run->exit_reason) {
+	case KVM_EXIT_S390_UCONTROL:
+		/** check program interruption code
+		 * handle page fault --> ucas map
+		 */
+		uc_handle_exit_ucontrol(self);
+		break;
+	case KVM_EXIT_S390_SIEIC:
+		return uc_handle_sieic(self);
+	default:
+		pr_info("exit_reason %2d not handled\n", run->exit_reason);
+	}
+	return true;
+}
+
+/* run the VM until interrupted */
+static int uc_run_once(FIXTURE_DATA(uc_kvm) *self)
+{
+	int rc;
+
+	rc = ioctl(self->vcpu_fd, KVM_RUN, NULL);
+	print_run(self->run, self->sie_block);
+	print_regs(self->run);
+	pr_debug("run %d / %d %s\n", rc, errno, strerror(errno));
+	return rc;
+}
+
+static void uc_assert_diag44(FIXTURE_DATA(uc_kvm) *self)
+{
+	struct kvm_s390_sie_block *sie_block = self->sie_block;
+
+	/* assert vm was interrupted by diag 0x0044 */
+	TEST_ASSERT_EQ(KVM_EXIT_S390_SIEIC, self->run->exit_reason);
+	TEST_ASSERT_EQ(ICPT_INST, sie_block->icptcode);
+	TEST_ASSERT_EQ(0x8300, sie_block->ipa);
+	TEST_ASSERT_EQ(0x440000, sie_block->ipb);
+}
+
+TEST_F(uc_kvm, uc_no_user_region)
+{
+	struct kvm_userspace_memory_region region = {
+		.slot = 1,
+		.guest_phys_addr = self->code_gpa,
+		.memory_size = VM_MEM_EXT_SIZE,
+		.userspace_addr = (uintptr_t)self->code_hva,
+	};
+	struct kvm_userspace_memory_region2 region2 = {
+		.slot = 1,
+		.guest_phys_addr = self->code_gpa,
+		.memory_size = VM_MEM_EXT_SIZE,
+		.userspace_addr = (uintptr_t)self->code_hva,
+	};
+
+	ASSERT_EQ(-1, ioctl(self->vm_fd, KVM_SET_USER_MEMORY_REGION, &region));
+	ASSERT_TRUE(errno == EEXIST || errno == EINVAL)
+		TH_LOG("errno %s (%i) not expected for ioctl KVM_SET_USER_MEMORY_REGION",
+		       strerror(errno), errno);
+
+	ASSERT_EQ(-1, ioctl(self->vm_fd, KVM_SET_USER_MEMORY_REGION2, &region2));
+	ASSERT_TRUE(errno == EEXIST || errno == EINVAL)
+		TH_LOG("errno %s (%i) not expected for ioctl KVM_SET_USER_MEMORY_REGION2",
+		       strerror(errno), errno);
+}
+
+TEST_F(uc_kvm, uc_map_unmap)
+{
+	struct kvm_sync_regs *sync_regs = &self->run->s.regs;
+	struct kvm_run *run = self->run;
+	const u64 disp = 1;
+	int rc;
+
+	/* copy test_mem_asm to code_hva / code_gpa */
+	TH_LOG("copy code %p to vm mapped memory %p / %p",
+	       &test_mem_asm, (void *)self->code_hva, (void *)self->code_gpa);
+	memcpy((void *)self->code_hva, &test_mem_asm, PAGE_SIZE);
+
+	/* DAT disabled + 64 bit mode */
+	run->psw_mask = 0x0000000180000000ULL;
+	run->psw_addr = self->code_gpa;
+
+	/* set register content for test_mem_asm to access not mapped memory*/
+	sync_regs->gprs[1] = 0x55;
+	sync_regs->gprs[5] = self->base_gpa;
+	sync_regs->gprs[6] = VM_MEM_SIZE + disp;
+	run->kvm_dirty_regs |= KVM_SYNC_GPRS;
+
+	/* run and expect to fail with ucontrol pic segment translation */
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(1, sync_regs->gprs[0]);
+	ASSERT_EQ(KVM_EXIT_S390_UCONTROL, run->exit_reason);
+
+	ASSERT_EQ(PGM_SEGMENT_TRANSLATION, run->s390_ucontrol.pgm_code);
+	ASSERT_EQ(self->base_gpa + VM_MEM_SIZE, run->s390_ucontrol.trans_exc_code);
+
+	/* fail to map memory with not segment aligned address */
+	rc = uc_map_ext(self, self->base_gpa + VM_MEM_SIZE + disp, VM_MEM_EXT_SIZE);
+	ASSERT_GT(0, rc)
+		TH_LOG("ucas map for non segment address should fail but didn't; "
+		       "result %d not expected, %s", rc, strerror(errno));
+
+	/* map / make additional memory available */
+	rc = uc_map_ext(self, self->base_gpa + VM_MEM_SIZE, VM_MEM_EXT_SIZE);
+	ASSERT_EQ(0, rc)
+		TH_LOG("ucas map result %d not expected, %s", rc, strerror(errno));
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(false, uc_handle_exit(self));
+	uc_assert_diag44(self);
+
+	/* assert registers and memory are in expected state */
+	ASSERT_EQ(2, sync_regs->gprs[0]);
+	ASSERT_EQ(0x55, sync_regs->gprs[1]);
+	ASSERT_EQ(0x55, *(u32 *)gpa2hva(self, self->base_gpa + VM_MEM_SIZE + disp));
+
+	/* unmap and run loop again */
+	rc = uc_unmap_ext(self, self->base_gpa + VM_MEM_SIZE, VM_MEM_EXT_SIZE);
+	ASSERT_EQ(0, rc)
+		TH_LOG("ucas unmap result %d not expected, %s", rc, strerror(errno));
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(3, sync_regs->gprs[0]);
+	ASSERT_EQ(KVM_EXIT_S390_UCONTROL, run->exit_reason);
+	ASSERT_EQ(PGM_SEGMENT_TRANSLATION, run->s390_ucontrol.pgm_code);
+	/* handle ucontrol exit and remap memory after previous map and unmap */
+	ASSERT_EQ(true, uc_handle_exit(self));
+}
+
+TEST_F(uc_kvm, uc_gprs)
+{
+	struct kvm_sync_regs *sync_regs = &self->run->s.regs;
+	struct kvm_run *run = self->run;
+	struct kvm_regs regs = {};
+
+	/* Set registers to values that are different from the ones that we expect below */
+	for (int i = 0; i < 8; i++)
+		sync_regs->gprs[i] = 8;
+	run->kvm_dirty_regs |= KVM_SYNC_GPRS;
+
+	/* copy test_gprs_asm to code_hva / code_gpa */
+	TH_LOG("copy code %p to vm mapped memory %p / %p",
+	       &test_gprs_asm, (void *)self->code_hva, (void *)self->code_gpa);
+	memcpy((void *)self->code_hva, &test_gprs_asm, PAGE_SIZE);
+
+	/* DAT disabled + 64 bit mode */
+	run->psw_mask = 0x0000000180000000ULL;
+	run->psw_addr = self->code_gpa;
+
+	/* run and expect interception of diag 44 */
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(false, uc_handle_exit(self));
+	uc_assert_diag44(self);
+
+	/* Retrieve and check guest register values */
+	ASSERT_EQ(0, ioctl(self->vcpu_fd, KVM_GET_REGS, &regs));
+	for (int i = 0; i < 8; i++) {
+		ASSERT_EQ(i, regs.gprs[i]);
+		ASSERT_EQ(i, sync_regs->gprs[i]);
+	}
+
+	/* run and expect interception of diag 44 again */
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(false, uc_handle_exit(self));
+	uc_assert_diag44(self);
+
+	/* check continued increment of register 0 value */
+	ASSERT_EQ(0, ioctl(self->vcpu_fd, KVM_GET_REGS, &regs));
+	ASSERT_EQ(1, regs.gprs[0]);
+	ASSERT_EQ(1, sync_regs->gprs[0]);
+}
+
+TEST_F(uc_kvm, uc_skey)
+{
+	struct kvm_s390_sie_block *sie_block = self->sie_block;
+	struct kvm_sync_regs *sync_regs = &self->run->s.regs;
+	u64 test_vaddr = VM_MEM_SIZE - (SZ_1M / 2);
+	struct kvm_run *run = self->run;
+	const u8 skeyvalue = 0x34;
+
+	/* copy test_skey_asm to code_hva / code_gpa */
+	TH_LOG("copy code %p to vm mapped memory %p / %p",
+	       &test_skey_asm, (void *)self->code_hva, (void *)self->code_gpa);
+	memcpy((void *)self->code_hva, &test_skey_asm, PAGE_SIZE);
+
+	/* set register content for test_skey_asm to access not mapped memory */
+	sync_regs->gprs[1] = skeyvalue;
+	sync_regs->gprs[5] = self->base_gpa;
+	sync_regs->gprs[6] = test_vaddr;
+	run->kvm_dirty_regs |= KVM_SYNC_GPRS;
+
+	/* DAT disabled + 64 bit mode */
+	run->psw_mask = 0x0000000180000000ULL;
+	run->psw_addr = self->code_gpa;
+
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(true, uc_handle_exit(self));
+	ASSERT_EQ(1, sync_regs->gprs[0]);
+
+	/* SSKE + ISKE */
+	sync_regs->gprs[1] = skeyvalue;
+	run->kvm_dirty_regs |= KVM_SYNC_GPRS;
+	ASSERT_EQ(0, uc_run_once(self));
+
+	/*
+	 * Bail out and skip the test after uc_skey_enable was executed but iske
+	 * is still intercepted. Instructions are not handled by the kernel.
+	 * Thus there is no need to test this here.
+	 */
+	TEST_ASSERT_EQ(0, sie_block->cpuflags & CPUSTAT_KSS);
+	TEST_ASSERT_EQ(0, sie_block->ictl & (ICTL_ISKE | ICTL_SSKE | ICTL_RRBE));
+	TEST_ASSERT_EQ(KVM_EXIT_S390_SIEIC, self->run->exit_reason);
+	TEST_ASSERT_EQ(ICPT_INST, sie_block->icptcode);
+	TEST_REQUIRE(sie_block->ipa != 0xb22b);
+
+	/* SSKE + ISKE contd. */
+	ASSERT_EQ(false, uc_handle_exit(self));
+	ASSERT_EQ(2, sync_regs->gprs[0]);
+	ASSERT_EQ(skeyvalue, sync_regs->gprs[1]);
+	uc_assert_diag44(self);
+
+	/* RRBE + ISKE */
+	sync_regs->gprs[1] = skeyvalue;
+	run->kvm_dirty_regs |= KVM_SYNC_GPRS;
+	ASSERT_EQ(0, uc_run_once(self));
+	ASSERT_EQ(false, uc_handle_exit(self));
+	ASSERT_EQ(3, sync_regs->gprs[0]);
+	/* assert R reset but rest of skey unchanged */
+	ASSERT_EQ(skeyvalue & 0xfa, sync_regs->gprs[1]);
+	ASSERT_EQ(0, sync_regs->gprs[1] & 0x04);
+	uc_assert_diag44(self);
+}
+
+static char uc_flic_b[PAGE_SIZE];
+static struct kvm_s390_io_adapter uc_flic_ioa = { .id = 0 };
+static struct kvm_s390_io_adapter_req uc_flic_ioam = { .id = 0 };
+static struct kvm_s390_ais_req uc_flic_asim = { .isc = 0 };
+static struct kvm_s390_ais_all uc_flic_asima = { .simm = 0 };
+static struct uc_flic_attr_test {
+	char *name;
+	struct kvm_device_attr a;
+	int hasrc;
+	int geterrno;
+	int seterrno;
+} uc_flic_attr_tests[] = {
+	{
+		.name = "KVM_DEV_FLIC_GET_ALL_IRQS",
+		.seterrno = EINVAL,
+		.a = {
+			.group = KVM_DEV_FLIC_GET_ALL_IRQS,
+			.addr = (u64)&uc_flic_b,
+			.attr = PAGE_SIZE,
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_ENQUEUE",
+		.geterrno = EINVAL,
+		.a = { .group = KVM_DEV_FLIC_ENQUEUE, },
+	},
+	{
+		.name = "KVM_DEV_FLIC_CLEAR_IRQS",
+		.geterrno = EINVAL,
+		.a = { .group = KVM_DEV_FLIC_CLEAR_IRQS, },
+	},
+	{
+		.name = "KVM_DEV_FLIC_ADAPTER_REGISTER",
+		.geterrno = EINVAL,
+		.a = {
+			.group = KVM_DEV_FLIC_ADAPTER_REGISTER,
+			.addr = (u64)&uc_flic_ioa,
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_ADAPTER_MODIFY",
+		.geterrno = EINVAL,
+		.seterrno = EINVAL,
+		.a = {
+			.group = KVM_DEV_FLIC_ADAPTER_MODIFY,
+			.addr = (u64)&uc_flic_ioam,
+			.attr = sizeof(uc_flic_ioam),
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_CLEAR_IO_IRQ",
+		.geterrno = EINVAL,
+		.seterrno = EINVAL,
+		.a = {
+			.group = KVM_DEV_FLIC_CLEAR_IO_IRQ,
+			.attr = 32,
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_AISM",
+		.geterrno = EINVAL,
+		.seterrno = ENOTSUP,
+		.a = {
+			.group = KVM_DEV_FLIC_AISM,
+			.addr = (u64)&uc_flic_asim,
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_AIRQ_INJECT",
+		.geterrno = EINVAL,
+		.a = { .group = KVM_DEV_FLIC_AIRQ_INJECT, },
+	},
+	{
+		.name = "KVM_DEV_FLIC_AISM_ALL",
+		.geterrno = ENOTSUP,
+		.seterrno = ENOTSUP,
+		.a = {
+			.group = KVM_DEV_FLIC_AISM_ALL,
+			.addr = (u64)&uc_flic_asima,
+			.attr = sizeof(uc_flic_asima),
+		},
+	},
+	{
+		.name = "KVM_DEV_FLIC_APF_ENABLE",
+		.geterrno = EINVAL,
+		.seterrno = EINVAL,
+		.a = { .group = KVM_DEV_FLIC_APF_ENABLE, },
+	},
+	{
+		.name = "KVM_DEV_FLIC_APF_DISABLE_WAIT",
+		.geterrno = EINVAL,
+		.seterrno = EINVAL,
+		.a = { .group = KVM_DEV_FLIC_APF_DISABLE_WAIT, },
+	},
+};
+
+TEST_F(uc_kvm, uc_flic_attrs)
+{
+	struct kvm_create_device cd = { .type = KVM_DEV_TYPE_FLIC };
+	struct kvm_device_attr attr;
+	u64 value;
+	int rc, i;
+
+	rc = ioctl(self->vm_fd, KVM_CREATE_DEVICE, &cd);
+	ASSERT_EQ(0, rc) TH_LOG("create device failed with err %s (%i)",
+				strerror(errno), errno);
+
+	for (i = 0; i < ARRAY_SIZE(uc_flic_attr_tests); i++) {
+		TH_LOG("test %s", uc_flic_attr_tests[i].name);
+		attr = (struct kvm_device_attr) {
+			.group = uc_flic_attr_tests[i].a.group,
+			.attr = uc_flic_attr_tests[i].a.attr,
+			.addr = uc_flic_attr_tests[i].a.addr,
+		};
+		if (attr.addr == 0)
+			attr.addr = (u64)&value;
+
+		rc = ioctl(cd.fd, KVM_HAS_DEVICE_ATTR, &attr);
+		EXPECT_EQ(uc_flic_attr_tests[i].hasrc, !!rc)
+			TH_LOG("expected dev attr missing %s",
+			       uc_flic_attr_tests[i].name);
+
+		rc = ioctl(cd.fd, KVM_GET_DEVICE_ATTR, &attr);
+		EXPECT_EQ(!!uc_flic_attr_tests[i].geterrno, !!rc)
+			TH_LOG("get dev attr rc not expected on %s %s (%i)",
+			       uc_flic_attr_tests[i].name,
+			       strerror(errno), errno);
+		if (uc_flic_attr_tests[i].geterrno)
+			EXPECT_EQ(uc_flic_attr_tests[i].geterrno, errno)
+				TH_LOG("get dev attr errno not expected on %s %s (%i)",
+				       uc_flic_attr_tests[i].name,
+				       strerror(errno), errno);
+
+		rc = ioctl(cd.fd, KVM_SET_DEVICE_ATTR, &attr);
+		EXPECT_EQ(!!uc_flic_attr_tests[i].seterrno, !!rc)
+			TH_LOG("set sev attr rc not expected on %s %s (%i)",
+			       uc_flic_attr_tests[i].name,
+			       strerror(errno), errno);
+		if (uc_flic_attr_tests[i].seterrno)
+			EXPECT_EQ(uc_flic_attr_tests[i].seterrno, errno)
+				TH_LOG("set dev attr errno not expected on %s %s (%i)",
+				       uc_flic_attr_tests[i].name,
+				       strerror(errno), errno);
+	}
+
+	close(cd.fd);
+}
+
+TEST_F(uc_kvm, uc_set_gsi_routing)
+{
+	struct kvm_irq_routing *routing = kvm_gsi_routing_create();
+	struct kvm_irq_routing_entry ue = {
+		.type = KVM_IRQ_ROUTING_S390_ADAPTER,
+		.gsi = 1,
+		.u.adapter = (struct kvm_irq_routing_s390_adapter) {
+			.ind_addr = 0,
+		},
+	};
+	int rc;
+
+	routing->entries[0] = ue;
+	routing->nr = 1;
+	rc = ioctl(self->vm_fd, KVM_SET_GSI_ROUTING, routing);
+	ASSERT_EQ(-1, rc) TH_LOG("err %s (%i)", strerror(errno), errno);
+	ASSERT_EQ(EINVAL, errno) TH_LOG("err %s (%i)", strerror(errno), errno);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/kvm/s390/user_operexec.c b/tools/testing/selftests/kvm/s390/user_operexec.c
new file mode 100644
index 000000000000..714906c1d12a
--- /dev/null
+++ b/tools/testing/selftests/kvm/s390/user_operexec.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Test operation exception forwarding.
+ *
+ * Copyright IBM Corp. 2025
+ *
+ * Authors:
+ *  Janosch Frank <frankja@linux.ibm.com>
+ */
+#include "kselftest.h"
+#include "kvm_util.h"
+#include "test_util.h"
+#include "sie.h"
+
+#include <linux/kvm.h>
+
+static void guest_code_instr0(void)
+{
+	asm(".word 0x0000");
+}
+
+static void test_user_instr0(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int rc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_instr0);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_INSTR0, 0);
+	TEST_ASSERT_EQ(0, rc);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_OPEREXC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0);
+
+	kvm_vm_free(vm);
+}
+
+static void guest_code_user_operexec(void)
+{
+	asm(".word 0x0807");
+}
+
+static void test_user_operexec(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int rc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_user_operexec);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_OPEREXEC, 0);
+	TEST_ASSERT_EQ(0, rc);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_OPEREXC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0x0807);
+
+	kvm_vm_free(vm);
+
+	/*
+	 * Since user_operexec is the superset it can be used for the
+	 * 0 instruction.
+	 */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_instr0);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_OPEREXEC, 0);
+	TEST_ASSERT_EQ(0, rc);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_OPEREXC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0);
+
+	kvm_vm_free(vm);
+}
+
+/* combine user_instr0 and user_operexec */
+static void test_user_operexec_combined(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int rc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_user_operexec);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_INSTR0, 0);
+	TEST_ASSERT_EQ(0, rc);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_OPEREXEC, 0);
+	TEST_ASSERT_EQ(0, rc);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_OPEREXC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0x0807);
+
+	kvm_vm_free(vm);
+
+	/* Reverse enablement order */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_user_operexec);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_OPEREXEC, 0);
+	TEST_ASSERT_EQ(0, rc);
+	rc = __vm_enable_cap(vm, KVM_CAP_S390_USER_INSTR0, 0);
+	TEST_ASSERT_EQ(0, rc);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_S390_SIEIC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.icptcode, ICPT_OPEREXC);
+	TEST_ASSERT_EQ(vcpu->run->s390_sieic.ipa, 0x0807);
+
+	kvm_vm_free(vm);
+}
+
+/*
+ * Run all tests above.
+ *
+ * Enablement after VCPU has been added is automatically tested since
+ * we enable the capability after VCPU creation.
+ */
+static struct testdef {
+	const char *name;
+	void (*test)(void);
+} testlist[] = {
+	{ "instr0", test_user_instr0 },
+	{ "operexec", test_user_operexec },
+	{ "operexec_combined", test_user_operexec_combined},
+};
+
+int main(int argc, char *argv[])
+{
+	int idx;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_S390_USER_INSTR0));
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(testlist));
+	for (idx = 0; idx < ARRAY_SIZE(testlist); idx++) {
+		testlist[idx].test();
+		ksft_test_result_pass("%s\n", testlist[idx].name);
+	}
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/set_memory_region_test.c b/tools/testing/selftests/kvm/set_memory_region_test.c
new file mode 100644
index 000000000000..7fe427ff9b38
--- /dev/null
+++ b/tools/testing/selftests/kvm/set_memory_region_test.c
@@ -0,0 +1,655 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <semaphore.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+
+#include <linux/compiler.h>
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+
+/*
+ * s390 needs at least 1MB alignment, and the x86 MOVE/DELETE tests need a 2MB
+ * sized and aligned region so that the initial region corresponds to exactly
+ * one large page.
+ */
+#define MEM_REGION_SIZE		0x200000
+
+#ifdef __x86_64__
+/*
+ * Somewhat arbitrary location and slot, intended to not overlap anything.
+ */
+#define MEM_REGION_GPA		0xc0000000
+#define MEM_REGION_SLOT		10
+
+static const uint64_t MMIO_VAL = 0xbeefull;
+
+extern const uint64_t final_rip_start;
+extern const uint64_t final_rip_end;
+
+static sem_t vcpu_ready;
+
+static inline uint64_t guest_spin_on_val(uint64_t spin_val)
+{
+	uint64_t val;
+
+	do {
+		val = READ_ONCE(*((uint64_t *)MEM_REGION_GPA));
+	} while (val == spin_val);
+
+	GUEST_SYNC(0);
+	return val;
+}
+
+static void *vcpu_worker(void *data)
+{
+	struct kvm_vcpu *vcpu = data;
+	struct kvm_run *run = vcpu->run;
+	struct ucall uc;
+	uint64_t cmd;
+
+	/*
+	 * Loop until the guest is done.  Re-enter the guest on all MMIO exits,
+	 * which will occur if the guest attempts to access a memslot after it
+	 * has been deleted or while it is being moved .
+	 */
+	while (1) {
+		vcpu_run(vcpu);
+
+		if (run->exit_reason == KVM_EXIT_IO) {
+			cmd = get_ucall(vcpu, &uc);
+			if (cmd != UCALL_SYNC)
+				break;
+
+			sem_post(&vcpu_ready);
+			continue;
+		}
+
+		if (run->exit_reason != KVM_EXIT_MMIO)
+			break;
+
+		TEST_ASSERT(!run->mmio.is_write, "Unexpected exit mmio write");
+		TEST_ASSERT(run->mmio.len == 8,
+			    "Unexpected exit mmio size = %u", run->mmio.len);
+
+		TEST_ASSERT(run->mmio.phys_addr == MEM_REGION_GPA,
+			    "Unexpected exit mmio address = 0x%llx",
+			    run->mmio.phys_addr);
+		memcpy(run->mmio.data, &MMIO_VAL, 8);
+	}
+
+	if (run->exit_reason == KVM_EXIT_IO && cmd == UCALL_ABORT)
+		REPORT_GUEST_ASSERT(uc);
+
+	return NULL;
+}
+
+static void wait_for_vcpu(void)
+{
+	struct timespec ts;
+
+	TEST_ASSERT(!clock_gettime(CLOCK_REALTIME, &ts),
+		    "clock_gettime() failed: %d", errno);
+
+	ts.tv_sec += 2;
+	TEST_ASSERT(!sem_timedwait(&vcpu_ready, &ts),
+		    "sem_timedwait() failed: %d", errno);
+
+	/* Wait for the vCPU thread to reenter the guest. */
+	usleep(100000);
+}
+
+static struct kvm_vm *spawn_vm(struct kvm_vcpu **vcpu, pthread_t *vcpu_thread,
+			       void *guest_code)
+{
+	struct kvm_vm *vm;
+	uint64_t *hva;
+	uint64_t gpa;
+
+	vm = vm_create_with_one_vcpu(vcpu, guest_code);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS_THP,
+				    MEM_REGION_GPA, MEM_REGION_SLOT,
+				    MEM_REGION_SIZE / getpagesize(), 0);
+
+	/*
+	 * Allocate and map two pages so that the GPA accessed by guest_code()
+	 * stays valid across the memslot move.
+	 */
+	gpa = vm_phy_pages_alloc(vm, 2, MEM_REGION_GPA, MEM_REGION_SLOT);
+	TEST_ASSERT(gpa == MEM_REGION_GPA, "Failed vm_phy_pages_alloc\n");
+
+	virt_map(vm, MEM_REGION_GPA, MEM_REGION_GPA, 2);
+
+	/* Ditto for the host mapping so that both pages can be zeroed. */
+	hva = addr_gpa2hva(vm, MEM_REGION_GPA);
+	memset(hva, 0, 2 * 4096);
+
+	pthread_create(vcpu_thread, NULL, vcpu_worker, *vcpu);
+
+	/* Ensure the guest thread is spun up. */
+	wait_for_vcpu();
+
+	return vm;
+}
+
+
+static void guest_code_move_memory_region(void)
+{
+	uint64_t val;
+
+	GUEST_SYNC(0);
+
+	/*
+	 * Spin until the memory region starts getting moved to a
+	 * misaligned address.
+	 * Every region move may or may not trigger MMIO, as the
+	 * window where the memslot is invalid is usually quite small.
+	 */
+	val = guest_spin_on_val(0);
+	__GUEST_ASSERT(val == 1 || val == MMIO_VAL,
+		       "Expected '1' or MMIO ('%lx'), got '%lx'", MMIO_VAL, val);
+
+	/* Spin until the misaligning memory region move completes. */
+	val = guest_spin_on_val(MMIO_VAL);
+	__GUEST_ASSERT(val == 1 || val == 0,
+		       "Expected '0' or '1' (no MMIO), got '%lx'", val);
+
+	/* Spin until the memory region starts to get re-aligned. */
+	val = guest_spin_on_val(0);
+	__GUEST_ASSERT(val == 1 || val == MMIO_VAL,
+		       "Expected '1' or MMIO ('%lx'), got '%lx'", MMIO_VAL, val);
+
+	/* Spin until the re-aligning memory region move completes. */
+	val = guest_spin_on_val(MMIO_VAL);
+	GUEST_ASSERT_EQ(val, 1);
+
+	GUEST_DONE();
+}
+
+static void test_move_memory_region(bool disable_slot_zap_quirk)
+{
+	pthread_t vcpu_thread;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint64_t *hva;
+
+	vm = spawn_vm(&vcpu, &vcpu_thread, guest_code_move_memory_region);
+
+	if (disable_slot_zap_quirk)
+		vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+
+	hva = addr_gpa2hva(vm, MEM_REGION_GPA);
+
+	/*
+	 * Shift the region's base GPA.  The guest should not see "2" as the
+	 * hva->gpa translation is misaligned, i.e. the guest is accessing a
+	 * different host pfn.
+	 */
+	vm_mem_region_move(vm, MEM_REGION_SLOT, MEM_REGION_GPA - 4096);
+	WRITE_ONCE(*hva, 2);
+
+	/*
+	 * The guest _might_ see an invalid memslot and trigger MMIO, but it's
+	 * a tiny window.  Spin and defer the sync until the memslot is
+	 * restored and guest behavior is once again deterministic.
+	 */
+	usleep(100000);
+
+	/*
+	 * Note, value in memory needs to be changed *before* restoring the
+	 * memslot, else the guest could race the update and see "2".
+	 */
+	WRITE_ONCE(*hva, 1);
+
+	/* Restore the original base, the guest should see "1". */
+	vm_mem_region_move(vm, MEM_REGION_SLOT, MEM_REGION_GPA);
+	wait_for_vcpu();
+	/* Defered sync from when the memslot was misaligned (above). */
+	wait_for_vcpu();
+
+	pthread_join(vcpu_thread, NULL);
+
+	kvm_vm_free(vm);
+}
+
+static void guest_code_delete_memory_region(void)
+{
+	struct desc_ptr idt;
+	uint64_t val;
+
+	/*
+	 * Clobber the IDT so that a #PF due to the memory region being deleted
+	 * escalates to triple-fault shutdown.  Because the memory region is
+	 * deleted, there will be no valid mappings.  As a result, KVM will
+	 * repeatedly intercepts the state-2 page fault that occurs when trying
+	 * to vector the guest's #PF.  I.e. trying to actually handle the #PF
+	 * in the guest will never succeed, and so isn't an option.
+	 */
+	memset(&idt, 0, sizeof(idt));
+	set_idt(&idt);
+
+	GUEST_SYNC(0);
+
+	/* Spin until the memory region is deleted. */
+	val = guest_spin_on_val(0);
+	GUEST_ASSERT_EQ(val, MMIO_VAL);
+
+	/* Spin until the memory region is recreated. */
+	val = guest_spin_on_val(MMIO_VAL);
+	GUEST_ASSERT_EQ(val, 0);
+
+	/* Spin until the memory region is deleted. */
+	val = guest_spin_on_val(0);
+	GUEST_ASSERT_EQ(val, MMIO_VAL);
+
+	asm("1:\n\t"
+	    ".pushsection .rodata\n\t"
+	    ".global final_rip_start\n\t"
+	    "final_rip_start: .quad 1b\n\t"
+	    ".popsection");
+
+	/* Spin indefinitely (until the code memslot is deleted). */
+	guest_spin_on_val(MMIO_VAL);
+
+	asm("1:\n\t"
+	    ".pushsection .rodata\n\t"
+	    ".global final_rip_end\n\t"
+	    "final_rip_end: .quad 1b\n\t"
+	    ".popsection");
+
+	GUEST_ASSERT(0);
+}
+
+static void test_delete_memory_region(bool disable_slot_zap_quirk)
+{
+	pthread_t vcpu_thread;
+	struct kvm_vcpu *vcpu;
+	struct kvm_regs regs;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+
+	vm = spawn_vm(&vcpu, &vcpu_thread, guest_code_delete_memory_region);
+
+	if (disable_slot_zap_quirk)
+		vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_SLOT_ZAP_ALL);
+
+	/* Delete the memory region, the guest should not die. */
+	vm_mem_region_delete(vm, MEM_REGION_SLOT);
+	wait_for_vcpu();
+
+	/* Recreate the memory region.  The guest should see "0". */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS_THP,
+				    MEM_REGION_GPA, MEM_REGION_SLOT,
+				    MEM_REGION_SIZE / getpagesize(), 0);
+	wait_for_vcpu();
+
+	/* Delete the region again so that there's only one memslot left. */
+	vm_mem_region_delete(vm, MEM_REGION_SLOT);
+	wait_for_vcpu();
+
+	/*
+	 * Delete the primary memslot.  This should cause an emulation error or
+	 * shutdown due to the page tables getting nuked.
+	 */
+	vm_mem_region_delete(vm, 0);
+
+	pthread_join(vcpu_thread, NULL);
+
+	run = vcpu->run;
+
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_SHUTDOWN ||
+		    run->exit_reason == KVM_EXIT_INTERNAL_ERROR,
+		    "Unexpected exit reason = %d", run->exit_reason);
+
+	vcpu_regs_get(vcpu, &regs);
+
+	/*
+	 * On AMD, after KVM_EXIT_SHUTDOWN the VMCB has been reinitialized already,
+	 * so the instruction pointer would point to the reset vector.
+	 */
+	if (run->exit_reason == KVM_EXIT_INTERNAL_ERROR)
+		TEST_ASSERT(regs.rip >= final_rip_start &&
+			    regs.rip < final_rip_end,
+			    "Bad rip, expected 0x%lx - 0x%lx, got 0x%llx",
+			    final_rip_start, final_rip_end, regs.rip);
+
+	kvm_vm_free(vm);
+}
+
+static void test_zero_memory_regions(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	pr_info("Testing KVM_RUN with zero added memory regions\n");
+
+	vm = vm_create_barebones();
+	vcpu = __vm_vcpu_add(vm, 0);
+
+	vm_ioctl(vm, KVM_SET_NR_MMU_PAGES, (void *)64ul);
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_INTERNAL_ERROR);
+
+	kvm_vm_free(vm);
+}
+#endif /* __x86_64__ */
+
+static void test_invalid_memory_region_flags(void)
+{
+	uint32_t supported_flags = KVM_MEM_LOG_DIRTY_PAGES;
+	const uint32_t v2_only_flags = KVM_MEM_GUEST_MEMFD;
+	struct kvm_vm *vm;
+	int r, i;
+
+#if defined __aarch64__ || defined __riscv || defined __x86_64__ || defined __loongarch__
+	supported_flags |= KVM_MEM_READONLY;
+#endif
+
+#ifdef __x86_64__
+	if (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))
+		vm = vm_create_barebones_type(KVM_X86_SW_PROTECTED_VM);
+	else
+#endif
+		vm = vm_create_barebones();
+
+	if (kvm_check_cap(KVM_CAP_MEMORY_ATTRIBUTES) & KVM_MEMORY_ATTRIBUTE_PRIVATE)
+		supported_flags |= KVM_MEM_GUEST_MEMFD;
+
+	for (i = 0; i < 32; i++) {
+		if ((supported_flags & BIT(i)) && !(v2_only_flags & BIT(i)))
+			continue;
+
+		r = __vm_set_user_memory_region(vm, 0, BIT(i),
+						0, MEM_REGION_SIZE, NULL);
+
+		TEST_ASSERT(r && errno == EINVAL,
+			    "KVM_SET_USER_MEMORY_REGION should have failed on v2 only flag 0x%lx", BIT(i));
+
+		if (supported_flags & BIT(i))
+			continue;
+
+		r = __vm_set_user_memory_region2(vm, 0, BIT(i),
+						 0, MEM_REGION_SIZE, NULL, 0, 0);
+		TEST_ASSERT(r && errno == EINVAL,
+			    "KVM_SET_USER_MEMORY_REGION2 should have failed on unsupported flag 0x%lx", BIT(i));
+	}
+
+	if (supported_flags & KVM_MEM_GUEST_MEMFD) {
+		int guest_memfd = vm_create_guest_memfd(vm, MEM_REGION_SIZE, 0);
+
+		r = __vm_set_user_memory_region2(vm, 0,
+						 KVM_MEM_LOG_DIRTY_PAGES | KVM_MEM_GUEST_MEMFD,
+						 0, MEM_REGION_SIZE, NULL, guest_memfd, 0);
+		TEST_ASSERT(r && errno == EINVAL,
+			    "KVM_SET_USER_MEMORY_REGION2 should have failed, dirty logging private memory is unsupported");
+
+		r = __vm_set_user_memory_region2(vm, 0,
+						 KVM_MEM_READONLY | KVM_MEM_GUEST_MEMFD,
+						 0, MEM_REGION_SIZE, NULL, guest_memfd, 0);
+		TEST_ASSERT(r && errno == EINVAL,
+			    "KVM_SET_USER_MEMORY_REGION2 should have failed, read-only GUEST_MEMFD memslots are unsupported");
+
+		close(guest_memfd);
+	}
+}
+
+/*
+ * Test it can be added memory slots up to KVM_CAP_NR_MEMSLOTS, then any
+ * tentative to add further slots should fail.
+ */
+static void test_add_max_memory_regions(void)
+{
+	int ret;
+	struct kvm_vm *vm;
+	uint32_t max_mem_slots;
+	uint32_t slot;
+	void *mem, *mem_aligned, *mem_extra;
+	size_t alignment;
+
+#ifdef __s390x__
+	/* On s390x, the host address must be aligned to 1M (due to PGSTEs) */
+	alignment = 0x100000;
+#else
+	alignment = 1;
+#endif
+
+	max_mem_slots = kvm_check_cap(KVM_CAP_NR_MEMSLOTS);
+	TEST_ASSERT(max_mem_slots > 0,
+		    "KVM_CAP_NR_MEMSLOTS should be greater than 0");
+	pr_info("Allowed number of memory slots: %i\n", max_mem_slots);
+
+	vm = vm_create_barebones();
+
+	/* Check it can be added memory slots up to the maximum allowed */
+	pr_info("Adding slots 0..%i, each memory region with %dK size\n",
+		(max_mem_slots - 1), MEM_REGION_SIZE >> 10);
+
+
+	mem = kvm_mmap((size_t)max_mem_slots * MEM_REGION_SIZE + alignment,
+		       PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE, -1);
+	mem_aligned = (void *)(((size_t) mem + alignment - 1) & ~(alignment - 1));
+
+	for (slot = 0; slot < max_mem_slots; slot++)
+		vm_set_user_memory_region(vm, slot, 0,
+					  ((uint64_t)slot * MEM_REGION_SIZE),
+					  MEM_REGION_SIZE,
+					  mem_aligned + (uint64_t)slot * MEM_REGION_SIZE);
+
+	/* Check it cannot be added memory slots beyond the limit */
+	mem_extra = kvm_mmap(MEM_REGION_SIZE, PROT_READ | PROT_WRITE,
+			     MAP_PRIVATE | MAP_ANONYMOUS, -1);
+
+	ret = __vm_set_user_memory_region(vm, max_mem_slots, 0,
+					  (uint64_t)max_mem_slots * MEM_REGION_SIZE,
+					  MEM_REGION_SIZE, mem_extra);
+	TEST_ASSERT(ret == -1 && errno == EINVAL,
+		    "Adding one more memory slot should fail with EINVAL");
+
+	kvm_munmap(mem, (size_t)max_mem_slots * MEM_REGION_SIZE + alignment);
+	kvm_munmap(mem_extra, MEM_REGION_SIZE);
+	kvm_vm_free(vm);
+}
+
+
+#ifdef __x86_64__
+static void test_invalid_guest_memfd(struct kvm_vm *vm, int memfd,
+				     size_t offset, const char *msg)
+{
+	int r = __vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+					     MEM_REGION_GPA, MEM_REGION_SIZE,
+					     0, memfd, offset);
+	TEST_ASSERT(r == -1 && errno == EINVAL, "%s", msg);
+}
+
+static void test_add_private_memory_region(void)
+{
+	struct kvm_vm *vm, *vm2;
+	int memfd, i;
+
+	pr_info("Testing ADD of KVM_MEM_GUEST_MEMFD memory regions\n");
+
+	vm = vm_create_barebones_type(KVM_X86_SW_PROTECTED_VM);
+
+	test_invalid_guest_memfd(vm, vm->kvm_fd, 0, "KVM fd should fail");
+	test_invalid_guest_memfd(vm, vm->fd, 0, "VM's fd should fail");
+
+	memfd = kvm_memfd_alloc(MEM_REGION_SIZE, false);
+	test_invalid_guest_memfd(vm, memfd, 0, "Regular memfd() should fail");
+	close(memfd);
+
+	vm2 = vm_create_barebones_type(KVM_X86_SW_PROTECTED_VM);
+	memfd = vm_create_guest_memfd(vm2, MEM_REGION_SIZE, 0);
+	test_invalid_guest_memfd(vm, memfd, 0, "Other VM's guest_memfd() should fail");
+
+	vm_set_user_memory_region2(vm2, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+				   MEM_REGION_GPA, MEM_REGION_SIZE, 0, memfd, 0);
+	close(memfd);
+	kvm_vm_free(vm2);
+
+	memfd = vm_create_guest_memfd(vm, MEM_REGION_SIZE, 0);
+	for (i = 1; i < PAGE_SIZE; i++)
+		test_invalid_guest_memfd(vm, memfd, i, "Unaligned offset should fail");
+
+	vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+				   MEM_REGION_GPA, MEM_REGION_SIZE, 0, memfd, 0);
+	close(memfd);
+
+	kvm_vm_free(vm);
+}
+
+static void test_add_overlapping_private_memory_regions(void)
+{
+	struct kvm_vm *vm;
+	int memfd;
+	int r;
+
+	pr_info("Testing ADD of overlapping KVM_MEM_GUEST_MEMFD memory regions\n");
+
+	vm = vm_create_barebones_type(KVM_X86_SW_PROTECTED_VM);
+
+	memfd = vm_create_guest_memfd(vm, MEM_REGION_SIZE * 4, 0);
+
+	vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+				   MEM_REGION_GPA, MEM_REGION_SIZE * 2, 0, memfd, 0);
+
+	vm_set_user_memory_region2(vm, MEM_REGION_SLOT + 1, KVM_MEM_GUEST_MEMFD,
+				   MEM_REGION_GPA * 2, MEM_REGION_SIZE * 2,
+				   0, memfd, MEM_REGION_SIZE * 2);
+
+	/*
+	 * Delete the first memslot, and then attempt to recreate it except
+	 * with a "bad" offset that results in overlap in the guest_memfd().
+	 */
+	vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+				   MEM_REGION_GPA, 0, NULL, -1, 0);
+
+	/* Overlap the front half of the other slot. */
+	r = __vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+					 MEM_REGION_GPA * 2 - MEM_REGION_SIZE,
+					 MEM_REGION_SIZE * 2,
+					 0, memfd, 0);
+	TEST_ASSERT(r == -1 && errno == EEXIST, "%s",
+		    "Overlapping guest_memfd() bindings should fail with EEXIST");
+
+	/* And now the back half of the other slot. */
+	r = __vm_set_user_memory_region2(vm, MEM_REGION_SLOT, KVM_MEM_GUEST_MEMFD,
+					 MEM_REGION_GPA * 2 + MEM_REGION_SIZE,
+					 MEM_REGION_SIZE * 2,
+					 0, memfd, 0);
+	TEST_ASSERT(r == -1 && errno == EEXIST, "%s",
+		    "Overlapping guest_memfd() bindings should fail with EEXIST");
+
+	close(memfd);
+	kvm_vm_free(vm);
+}
+
+static void guest_code_mmio_during_vectoring(void)
+{
+	const struct desc_ptr idt_desc = {
+		.address = MEM_REGION_GPA,
+		.size = 0xFFF,
+	};
+
+	set_idt(&idt_desc);
+
+	/* Generate a #GP by dereferencing a non-canonical address */
+	*((uint8_t *)NONCANONICAL) = 0x1;
+
+	GUEST_ASSERT(0);
+}
+
+/*
+ * This test points the IDT descriptor base to an MMIO address. It should cause
+ * a KVM internal error when an event occurs in the guest.
+ */
+static void test_mmio_during_vectoring(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	u64 expected_gpa;
+
+	pr_info("Testing MMIO during vectoring error handling\n");
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code_mmio_during_vectoring);
+	virt_map(vm, MEM_REGION_GPA, MEM_REGION_GPA, 1);
+
+	run = vcpu->run;
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_INTERNAL_ERROR);
+	TEST_ASSERT(run->internal.suberror == KVM_INTERNAL_ERROR_DELIVERY_EV,
+		    "Unexpected suberror = %d", vcpu->run->internal.suberror);
+	TEST_ASSERT(run->internal.ndata != 4, "Unexpected internal error data array size = %d",
+		    run->internal.ndata);
+
+	/* The reported GPA should be IDT base + offset of the GP vector */
+	expected_gpa = MEM_REGION_GPA + GP_VECTOR * sizeof(struct idt_entry);
+
+	TEST_ASSERT(run->internal.data[3] == expected_gpa,
+		    "Unexpected GPA = %llx (expected %lx)",
+		    vcpu->run->internal.data[3], expected_gpa);
+
+	kvm_vm_free(vm);
+}
+#endif
+
+int main(int argc, char *argv[])
+{
+#ifdef __x86_64__
+	int i, loops;
+	int j, disable_slot_zap_quirk = 0;
+
+	if (kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) & KVM_X86_QUIRK_SLOT_ZAP_ALL)
+		disable_slot_zap_quirk = 1;
+	/*
+	 * FIXME: the zero-memslot test fails on aarch64 and s390x because
+	 * KVM_RUN fails with ENOEXEC or EFAULT.
+	 */
+	test_zero_memory_regions();
+	test_mmio_during_vectoring();
+#endif
+
+	test_invalid_memory_region_flags();
+
+	test_add_max_memory_regions();
+
+#ifdef __x86_64__
+	if (kvm_has_cap(KVM_CAP_GUEST_MEMFD) &&
+	    (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))) {
+		test_add_private_memory_region();
+		test_add_overlapping_private_memory_regions();
+	} else {
+		pr_info("Skipping tests for KVM_MEM_GUEST_MEMFD memory regions\n");
+	}
+
+	if (argc > 1)
+		loops = atoi_positive("Number of iterations", argv[1]);
+	else
+		loops = 10;
+
+	for (j = 0; j <= disable_slot_zap_quirk; j++) {
+		pr_info("Testing MOVE of in-use region, %d loops, slot zap quirk %s\n",
+			loops, j ? "disabled" : "enabled");
+		for (i = 0; i < loops; i++)
+			test_move_memory_region(!!j);
+
+		pr_info("Testing DELETE of in-use region, %d loops, slot zap quirk %s\n",
+			loops, j ? "disabled" : "enabled");
+		for (i = 0; i < loops; i++)
+			test_delete_memory_region(!!j);
+	}
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/settings b/tools/testing/selftests/kvm/settings
new file mode 100644
index 000000000000..6091b45d226b
--- /dev/null
+++ b/tools/testing/selftests/kvm/settings
@@ -0,0 +1 @@
+timeout=120
diff --git a/tools/testing/selftests/kvm/steal_time.c b/tools/testing/selftests/kvm/steal_time.c
new file mode 100644
index 000000000000..8edc1fca345b
--- /dev/null
+++ b/tools/testing/selftests/kvm/steal_time.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * steal/stolen time test
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <time.h>
+#include <sched.h>
+#include <pthread.h>
+#include <linux/kernel.h>
+#include <asm/kvm.h>
+#ifdef __riscv
+#include "sbi.h"
+#else
+#include <asm/kvm_para.h>
+#endif
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "ucall_common.h"
+
+#define NR_VCPUS		4
+#define ST_GPA_BASE		(1 << 30)
+
+static void *st_gva[NR_VCPUS];
+static uint64_t guest_stolen_time[NR_VCPUS];
+
+#if defined(__x86_64__)
+
+/* steal_time must have 64-byte alignment */
+#define STEAL_TIME_SIZE		((sizeof(struct kvm_steal_time) + 63) & ~63)
+
+static void check_status(struct kvm_steal_time *st)
+{
+	GUEST_ASSERT(!(READ_ONCE(st->version) & 1));
+	GUEST_ASSERT_EQ(READ_ONCE(st->flags), 0);
+	GUEST_ASSERT_EQ(READ_ONCE(st->preempted), 0);
+}
+
+static void guest_code(int cpu)
+{
+	struct kvm_steal_time *st = st_gva[cpu];
+	uint32_t version;
+
+	GUEST_ASSERT_EQ(rdmsr(MSR_KVM_STEAL_TIME), ((uint64_t)st_gva[cpu] | KVM_MSR_ENABLED));
+
+	memset(st, 0, sizeof(*st));
+	GUEST_SYNC(0);
+
+	check_status(st);
+	WRITE_ONCE(guest_stolen_time[cpu], st->steal);
+	version = READ_ONCE(st->version);
+	check_status(st);
+	GUEST_SYNC(1);
+
+	check_status(st);
+	GUEST_ASSERT(version < READ_ONCE(st->version));
+	WRITE_ONCE(guest_stolen_time[cpu], st->steal);
+	check_status(st);
+	GUEST_DONE();
+}
+
+static bool is_steal_time_supported(struct kvm_vcpu *vcpu)
+{
+	return kvm_cpu_has(X86_FEATURE_KVM_STEAL_TIME);
+}
+
+static void steal_time_init(struct kvm_vcpu *vcpu, uint32_t i)
+{
+	int ret;
+
+	/* ST_GPA_BASE is identity mapped */
+	st_gva[i] = (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE);
+	sync_global_to_guest(vcpu->vm, st_gva[i]);
+
+	ret = _vcpu_set_msr(vcpu, MSR_KVM_STEAL_TIME,
+			    (ulong)st_gva[i] | KVM_STEAL_RESERVED_MASK);
+	TEST_ASSERT(ret == 0, "Bad GPA didn't fail");
+
+	vcpu_set_msr(vcpu, MSR_KVM_STEAL_TIME, (ulong)st_gva[i] | KVM_MSR_ENABLED);
+}
+
+static void steal_time_dump(struct kvm_vm *vm, uint32_t vcpu_idx)
+{
+	struct kvm_steal_time *st = addr_gva2hva(vm, (ulong)st_gva[vcpu_idx]);
+
+	ksft_print_msg("VCPU%d:\n", vcpu_idx);
+	ksft_print_msg("    steal:     %lld\n", st->steal);
+	ksft_print_msg("    version:   %d\n", st->version);
+	ksft_print_msg("    flags:     %d\n", st->flags);
+	ksft_print_msg("    preempted: %d\n", st->preempted);
+	ksft_print_msg("    u8_pad:    %d %d %d\n",
+			st->u8_pad[0], st->u8_pad[1], st->u8_pad[2]);
+	ksft_print_msg("    pad:       %d %d %d %d %d %d %d %d %d %d %d\n",
+			st->pad[0], st->pad[1], st->pad[2], st->pad[3],
+			st->pad[4], st->pad[5], st->pad[6], st->pad[7],
+			st->pad[8], st->pad[9], st->pad[10]);
+}
+
+#elif defined(__aarch64__)
+
+/* PV_TIME_ST must have 64-byte alignment */
+#define STEAL_TIME_SIZE		((sizeof(struct st_time) + 63) & ~63)
+
+#define SMCCC_ARCH_FEATURES	0x80000001
+#define PV_TIME_FEATURES	0xc5000020
+#define PV_TIME_ST		0xc5000021
+
+struct st_time {
+	uint32_t rev;
+	uint32_t attr;
+	uint64_t st_time;
+};
+
+static int64_t smccc(uint32_t func, uint64_t arg)
+{
+	struct arm_smccc_res res;
+
+	do_smccc(func, arg, 0, 0, 0, 0, 0, 0, &res);
+	return res.a0;
+}
+
+static void check_status(struct st_time *st)
+{
+	GUEST_ASSERT_EQ(READ_ONCE(st->rev), 0);
+	GUEST_ASSERT_EQ(READ_ONCE(st->attr), 0);
+}
+
+static void guest_code(int cpu)
+{
+	struct st_time *st;
+	int64_t status;
+
+	status = smccc(SMCCC_ARCH_FEATURES, PV_TIME_FEATURES);
+	GUEST_ASSERT_EQ(status, 0);
+	status = smccc(PV_TIME_FEATURES, PV_TIME_FEATURES);
+	GUEST_ASSERT_EQ(status, 0);
+	status = smccc(PV_TIME_FEATURES, PV_TIME_ST);
+	GUEST_ASSERT_EQ(status, 0);
+
+	status = smccc(PV_TIME_ST, 0);
+	GUEST_ASSERT_NE(status, -1);
+	GUEST_ASSERT_EQ(status, (ulong)st_gva[cpu]);
+
+	st = (struct st_time *)status;
+	GUEST_SYNC(0);
+
+	check_status(st);
+	WRITE_ONCE(guest_stolen_time[cpu], st->st_time);
+	GUEST_SYNC(1);
+
+	check_status(st);
+	WRITE_ONCE(guest_stolen_time[cpu], st->st_time);
+	GUEST_DONE();
+}
+
+static bool is_steal_time_supported(struct kvm_vcpu *vcpu)
+{
+	struct kvm_device_attr dev = {
+		.group = KVM_ARM_VCPU_PVTIME_CTRL,
+		.attr = KVM_ARM_VCPU_PVTIME_IPA,
+	};
+
+	return !__vcpu_ioctl(vcpu, KVM_HAS_DEVICE_ATTR, &dev);
+}
+
+static void steal_time_init(struct kvm_vcpu *vcpu, uint32_t i)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	uint64_t st_ipa;
+	int ret;
+
+	struct kvm_device_attr dev = {
+		.group = KVM_ARM_VCPU_PVTIME_CTRL,
+		.attr = KVM_ARM_VCPU_PVTIME_IPA,
+		.addr = (uint64_t)&st_ipa,
+	};
+
+	vcpu_ioctl(vcpu, KVM_HAS_DEVICE_ATTR, &dev);
+
+	/* ST_GPA_BASE is identity mapped */
+	st_gva[i] = (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE);
+	sync_global_to_guest(vm, st_gva[i]);
+
+	st_ipa = (ulong)st_gva[i] | 1;
+	ret = __vcpu_ioctl(vcpu, KVM_SET_DEVICE_ATTR, &dev);
+	TEST_ASSERT(ret == -1 && errno == EINVAL, "Bad IPA didn't report EINVAL");
+
+	st_ipa = (ulong)st_gva[i];
+	vcpu_ioctl(vcpu, KVM_SET_DEVICE_ATTR, &dev);
+
+	ret = __vcpu_ioctl(vcpu, KVM_SET_DEVICE_ATTR, &dev);
+	TEST_ASSERT(ret == -1 && errno == EEXIST, "Set IPA twice without EEXIST");
+}
+
+static void steal_time_dump(struct kvm_vm *vm, uint32_t vcpu_idx)
+{
+	struct st_time *st = addr_gva2hva(vm, (ulong)st_gva[vcpu_idx]);
+
+	ksft_print_msg("VCPU%d:\n", vcpu_idx);
+	ksft_print_msg("    rev:     %d\n", st->rev);
+	ksft_print_msg("    attr:    %d\n", st->attr);
+	ksft_print_msg("    st_time: %ld\n", st->st_time);
+}
+
+#elif defined(__riscv)
+
+/* SBI STA shmem must have 64-byte alignment */
+#define STEAL_TIME_SIZE		((sizeof(struct sta_struct) + 63) & ~63)
+
+static vm_paddr_t st_gpa[NR_VCPUS];
+
+struct sta_struct {
+	uint32_t sequence;
+	uint32_t flags;
+	uint64_t steal;
+	uint8_t preempted;
+	uint8_t pad[47];
+} __packed;
+
+static void sta_set_shmem(vm_paddr_t gpa, unsigned long flags)
+{
+	unsigned long lo = (unsigned long)gpa;
+#if __riscv_xlen == 32
+	unsigned long hi = (unsigned long)(gpa >> 32);
+#else
+	unsigned long hi = gpa == -1 ? -1 : 0;
+#endif
+	struct sbiret ret = sbi_ecall(SBI_EXT_STA, 0, lo, hi, flags, 0, 0, 0);
+
+	GUEST_ASSERT(ret.value == 0 && ret.error == 0);
+}
+
+static void check_status(struct sta_struct *st)
+{
+	GUEST_ASSERT(!(READ_ONCE(st->sequence) & 1));
+	GUEST_ASSERT(READ_ONCE(st->flags) == 0);
+	GUEST_ASSERT(READ_ONCE(st->preempted) == 0);
+}
+
+static void guest_code(int cpu)
+{
+	struct sta_struct *st = st_gva[cpu];
+	uint32_t sequence;
+	long out_val = 0;
+	bool probe;
+
+	probe = guest_sbi_probe_extension(SBI_EXT_STA, &out_val);
+	GUEST_ASSERT(probe && out_val == 1);
+
+	sta_set_shmem(st_gpa[cpu], 0);
+	GUEST_SYNC(0);
+
+	check_status(st);
+	WRITE_ONCE(guest_stolen_time[cpu], st->steal);
+	sequence = READ_ONCE(st->sequence);
+	check_status(st);
+	GUEST_SYNC(1);
+
+	check_status(st);
+	GUEST_ASSERT(sequence < READ_ONCE(st->sequence));
+	WRITE_ONCE(guest_stolen_time[cpu], st->steal);
+	check_status(st);
+	GUEST_DONE();
+}
+
+static bool is_steal_time_supported(struct kvm_vcpu *vcpu)
+{
+	uint64_t id = RISCV_SBI_EXT_REG(KVM_RISCV_SBI_EXT_STA);
+	unsigned long enabled = vcpu_get_reg(vcpu, id);
+
+	TEST_ASSERT(enabled == 0 || enabled == 1, "Expected boolean result");
+
+	return enabled;
+}
+
+static void steal_time_init(struct kvm_vcpu *vcpu, uint32_t i)
+{
+	/* ST_GPA_BASE is identity mapped */
+	st_gva[i] = (void *)(ST_GPA_BASE + i * STEAL_TIME_SIZE);
+	st_gpa[i] = addr_gva2gpa(vcpu->vm, (vm_vaddr_t)st_gva[i]);
+	sync_global_to_guest(vcpu->vm, st_gva[i]);
+	sync_global_to_guest(vcpu->vm, st_gpa[i]);
+}
+
+static void steal_time_dump(struct kvm_vm *vm, uint32_t vcpu_idx)
+{
+	struct sta_struct *st = addr_gva2hva(vm, (ulong)st_gva[vcpu_idx]);
+	int i;
+
+	pr_info("VCPU%d:\n", vcpu_idx);
+	pr_info("    sequence:  %d\n", st->sequence);
+	pr_info("    flags:     %d\n", st->flags);
+	pr_info("    steal:     %"PRIu64"\n", st->steal);
+	pr_info("    preempted: %d\n", st->preempted);
+	pr_info("    pad:      ");
+	for (i = 0; i < 47; ++i)
+		pr_info("%d", st->pad[i]);
+	pr_info("\n");
+}
+
+#endif
+
+static void *do_steal_time(void *arg)
+{
+	struct timespec ts, stop;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts);
+	stop = timespec_add_ns(ts, MIN_RUN_DELAY_NS);
+
+	while (1) {
+		clock_gettime(CLOCK_MONOTONIC, &ts);
+		if (timespec_to_ns(timespec_sub(ts, stop)) >= 0)
+			break;
+	}
+
+	return NULL;
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+	case UCALL_DONE:
+		break;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_ASSERT(false, "Unexpected exit: %s",
+			    exit_reason_str(vcpu->run->exit_reason));
+	}
+}
+
+int main(int ac, char **av)
+{
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct kvm_vm *vm;
+	pthread_attr_t attr;
+	pthread_t thread;
+	cpu_set_t cpuset;
+	unsigned int gpages;
+	long stolen_time;
+	long run_delay;
+	bool verbose;
+	int i;
+
+	verbose = ac > 1 && (!strncmp(av[1], "-v", 3) || !strncmp(av[1], "--verbose", 10));
+
+	/* Set CPU affinity so we can force preemption of the VCPU */
+	CPU_ZERO(&cpuset);
+	CPU_SET(0, &cpuset);
+	pthread_attr_init(&attr);
+	pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+	pthread_setaffinity_np(pthread_self(), sizeof(cpu_set_t), &cpuset);
+
+	/* Create a VM and an identity mapped memslot for the steal time structure */
+	vm = vm_create_with_vcpus(NR_VCPUS, guest_code, vcpus);
+	gpages = vm_calc_num_guest_pages(VM_MODE_DEFAULT, STEAL_TIME_SIZE * NR_VCPUS);
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, ST_GPA_BASE, 1, gpages, 0);
+	virt_map(vm, ST_GPA_BASE, ST_GPA_BASE, gpages);
+
+	ksft_print_header();
+	TEST_REQUIRE(is_steal_time_supported(vcpus[0]));
+	ksft_set_plan(NR_VCPUS);
+
+	/* Run test on each VCPU */
+	for (i = 0; i < NR_VCPUS; ++i) {
+		steal_time_init(vcpus[i], i);
+
+		vcpu_args_set(vcpus[i], 1, i);
+
+		/* First VCPU run initializes steal-time */
+		run_vcpu(vcpus[i]);
+
+		/* Second VCPU run, expect guest stolen time to be <= run_delay */
+		run_vcpu(vcpus[i]);
+		sync_global_from_guest(vm, guest_stolen_time[i]);
+		stolen_time = guest_stolen_time[i];
+		run_delay = get_run_delay();
+		TEST_ASSERT(stolen_time <= run_delay,
+			    "Expected stolen time <= %ld, got %ld",
+			    run_delay, stolen_time);
+
+		/* Steal time from the VCPU. The steal time thread has the same CPU affinity as the VCPUs. */
+		run_delay = get_run_delay();
+		pthread_create(&thread, &attr, do_steal_time, NULL);
+		do
+			sched_yield();
+		while (get_run_delay() - run_delay < MIN_RUN_DELAY_NS);
+		pthread_join(thread, NULL);
+		run_delay = get_run_delay() - run_delay;
+		TEST_ASSERT(run_delay >= MIN_RUN_DELAY_NS,
+			    "Expected run_delay >= %ld, got %ld",
+			    MIN_RUN_DELAY_NS, run_delay);
+
+		/* Run VCPU again to confirm stolen time is consistent with run_delay */
+		run_vcpu(vcpus[i]);
+		sync_global_from_guest(vm, guest_stolen_time[i]);
+		stolen_time = guest_stolen_time[i] - stolen_time;
+		TEST_ASSERT(stolen_time >= run_delay,
+			    "Expected stolen time >= %ld, got %ld",
+			    run_delay, stolen_time);
+
+		if (verbose) {
+			ksft_print_msg("VCPU%d: total-stolen-time=%ld test-stolen-time=%ld%s\n",
+				       i, guest_stolen_time[i], stolen_time,
+				       stolen_time == run_delay ?
+				       " (BONUS: guest test-stolen-time even exactly matches test-run_delay)" : "");
+			steal_time_dump(vm, i);
+		}
+		ksft_test_result_pass("vcpu%d\n", i);
+	}
+
+	/* Print results and exit() accordingly */
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/kvm/system_counter_offset_test.c b/tools/testing/selftests/kvm/system_counter_offset_test.c
new file mode 100644
index 000000000000..513d421a9bff
--- /dev/null
+++ b/tools/testing/selftests/kvm/system_counter_offset_test.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Google LLC.
+ *
+ * Tests for adjusting the system counter from userspace
+ */
+#include <asm/kvm_para.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#ifdef __x86_64__
+
+struct test_case {
+	uint64_t tsc_offset;
+};
+
+static struct test_case test_cases[] = {
+	{ 0 },
+	{ 180 * NSEC_PER_SEC },
+	{ -180 * NSEC_PER_SEC },
+};
+
+static void check_preconditions(struct kvm_vcpu *vcpu)
+{
+	__TEST_REQUIRE(!__vcpu_has_device_attr(vcpu, KVM_VCPU_TSC_CTRL,
+					       KVM_VCPU_TSC_OFFSET),
+		       "KVM_VCPU_TSC_OFFSET not supported; skipping test");
+}
+
+static void setup_system_counter(struct kvm_vcpu *vcpu, struct test_case *test)
+{
+	vcpu_device_attr_set(vcpu, KVM_VCPU_TSC_CTRL, KVM_VCPU_TSC_OFFSET,
+			     &test->tsc_offset);
+}
+
+static uint64_t guest_read_system_counter(struct test_case *test)
+{
+	return rdtsc();
+}
+
+static uint64_t host_read_guest_system_counter(struct test_case *test)
+{
+	return rdtsc() + test->tsc_offset;
+}
+
+#else /* __x86_64__ */
+
+#error test not implemented for this architecture!
+
+#endif
+
+#define GUEST_SYNC_CLOCK(__stage, __val)			\
+		GUEST_SYNC_ARGS(__stage, __val, 0, 0, 0)
+
+static void guest_main(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		struct test_case *test = &test_cases[i];
+
+		GUEST_SYNC_CLOCK(i, guest_read_system_counter(test));
+	}
+}
+
+static void handle_sync(struct ucall *uc, uint64_t start, uint64_t end)
+{
+	uint64_t obs = uc->args[2];
+
+	TEST_ASSERT(start <= obs && obs <= end,
+		    "unexpected system counter value: %"PRIu64" expected range: [%"PRIu64", %"PRIu64"]",
+		    obs, start, end);
+
+	pr_info("system counter value: %"PRIu64" expected range [%"PRIu64", %"PRIu64"]\n",
+		obs, start, end);
+}
+
+static void handle_abort(struct ucall *uc)
+{
+	REPORT_GUEST_ASSERT(*uc);
+}
+
+static void enter_guest(struct kvm_vcpu *vcpu)
+{
+	uint64_t start, end;
+	struct ucall uc;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		struct test_case *test = &test_cases[i];
+
+		setup_system_counter(vcpu, test);
+		start = host_read_guest_system_counter(test);
+		vcpu_run(vcpu);
+		end = host_read_guest_system_counter(test);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			handle_sync(&uc, start, end);
+			break;
+		case UCALL_ABORT:
+			handle_abort(&uc);
+			return;
+		default:
+			TEST_ASSERT(0, "unhandled ucall %ld",
+				    get_ucall(vcpu, &uc));
+		}
+	}
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+	check_preconditions(vcpu);
+
+	enter_guest(vcpu);
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/amx_test.c b/tools/testing/selftests/kvm/x86/amx_test.c
new file mode 100644
index 000000000000..f4ce5a185a7d
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/amx_test.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * amx tests
+ *
+ * Copyright (C) 2021, Intel, Inc.
+ *
+ * Tests for amx #NM exception and save/restore.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#ifndef __x86_64__
+# error This test is 64-bit only
+#endif
+
+#define NUM_TILES			8
+#define TILE_SIZE			1024
+#define XSAVE_SIZE			((NUM_TILES * TILE_SIZE) + PAGE_SIZE)
+
+/* Tile configuration associated: */
+#define PALETTE_TABLE_INDEX		1
+#define MAX_TILES			16
+#define RESERVED_BYTES			14
+
+#define XSAVE_HDR_OFFSET		512
+
+struct tile_config {
+	u8  palette_id;
+	u8  start_row;
+	u8  reserved[RESERVED_BYTES];
+	u16 colsb[MAX_TILES];
+	u8  rows[MAX_TILES];
+};
+
+struct tile_data {
+	u8 data[NUM_TILES * TILE_SIZE];
+};
+
+struct xtile_info {
+	u16 bytes_per_tile;
+	u16 bytes_per_row;
+	u16 max_names;
+	u16 max_rows;
+	u32 xsave_offset;
+	u32 xsave_size;
+};
+
+static struct xtile_info xtile;
+
+static inline void __ldtilecfg(void *cfg)
+{
+	asm volatile(".byte 0xc4,0xe2,0x78,0x49,0x00"
+		     : : "a"(cfg));
+}
+
+static inline void __tileloadd(void *tile)
+{
+	asm volatile(".byte 0xc4,0xe2,0x7b,0x4b,0x04,0x10"
+		     : : "a"(tile), "d"(0));
+}
+
+static inline void __tilerelease(void)
+{
+	asm volatile(".byte 0xc4, 0xe2, 0x78, 0x49, 0xc0" ::);
+}
+
+static inline void __xsavec(struct xstate *xstate, uint64_t rfbm)
+{
+	uint32_t rfbm_lo = rfbm;
+	uint32_t rfbm_hi = rfbm >> 32;
+
+	asm volatile("xsavec (%%rdi)"
+		     : : "D" (xstate), "a" (rfbm_lo), "d" (rfbm_hi)
+		     : "memory");
+}
+
+static void check_xtile_info(void)
+{
+	GUEST_ASSERT((xgetbv(0) & XFEATURE_MASK_XTILE) == XFEATURE_MASK_XTILE);
+
+	GUEST_ASSERT(this_cpu_has_p(X86_PROPERTY_XSTATE_MAX_SIZE_XCR0));
+	GUEST_ASSERT(this_cpu_property(X86_PROPERTY_XSTATE_MAX_SIZE_XCR0) <= XSAVE_SIZE);
+
+	xtile.xsave_offset = this_cpu_property(X86_PROPERTY_XSTATE_TILE_OFFSET);
+	GUEST_ASSERT(xtile.xsave_offset == 2816);
+	xtile.xsave_size = this_cpu_property(X86_PROPERTY_XSTATE_TILE_SIZE);
+	GUEST_ASSERT(xtile.xsave_size == 8192);
+	GUEST_ASSERT(sizeof(struct tile_data) >= xtile.xsave_size);
+
+	GUEST_ASSERT(this_cpu_has_p(X86_PROPERTY_AMX_MAX_PALETTE_TABLES));
+	GUEST_ASSERT(this_cpu_property(X86_PROPERTY_AMX_MAX_PALETTE_TABLES) >=
+		     PALETTE_TABLE_INDEX);
+
+	GUEST_ASSERT(this_cpu_has_p(X86_PROPERTY_AMX_NR_TILE_REGS));
+	xtile.max_names = this_cpu_property(X86_PROPERTY_AMX_NR_TILE_REGS);
+	GUEST_ASSERT(xtile.max_names == 8);
+	xtile.bytes_per_tile = this_cpu_property(X86_PROPERTY_AMX_BYTES_PER_TILE);
+	GUEST_ASSERT(xtile.bytes_per_tile == 1024);
+	xtile.bytes_per_row = this_cpu_property(X86_PROPERTY_AMX_BYTES_PER_ROW);
+	GUEST_ASSERT(xtile.bytes_per_row == 64);
+	xtile.max_rows = this_cpu_property(X86_PROPERTY_AMX_MAX_ROWS);
+	GUEST_ASSERT(xtile.max_rows == 16);
+}
+
+static void set_tilecfg(struct tile_config *cfg)
+{
+	int i;
+
+	/* Only palette id 1 */
+	cfg->palette_id = 1;
+	for (i = 0; i < xtile.max_names; i++) {
+		cfg->colsb[i] = xtile.bytes_per_row;
+		cfg->rows[i] = xtile.max_rows;
+	}
+}
+
+static void __attribute__((__flatten__)) guest_code(struct tile_config *amx_cfg,
+						    struct tile_data *tiledata,
+						    struct xstate *xstate)
+{
+	GUEST_ASSERT(this_cpu_has(X86_FEATURE_XSAVE) &&
+		     this_cpu_has(X86_FEATURE_OSXSAVE));
+	check_xtile_info();
+	GUEST_SYNC(1);
+
+	/* xfd=0, enable amx */
+	wrmsr(MSR_IA32_XFD, 0);
+	GUEST_SYNC(2);
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD) == 0);
+	set_tilecfg(amx_cfg);
+	__ldtilecfg(amx_cfg);
+	GUEST_SYNC(3);
+	/* Check save/restore when trap to userspace */
+	__tileloadd(tiledata);
+	GUEST_SYNC(4);
+	__tilerelease();
+	GUEST_SYNC(5);
+	/*
+	 * After XSAVEC, XTILEDATA is cleared in the xstate_bv but is set in
+	 * the xcomp_bv.
+	 */
+	xstate->header.xstate_bv = XFEATURE_MASK_XTILE_DATA;
+	__xsavec(xstate, XFEATURE_MASK_XTILE_DATA);
+	GUEST_ASSERT(!(xstate->header.xstate_bv & XFEATURE_MASK_XTILE_DATA));
+	GUEST_ASSERT(xstate->header.xcomp_bv & XFEATURE_MASK_XTILE_DATA);
+
+	/* xfd=0x40000, disable amx tiledata */
+	wrmsr(MSR_IA32_XFD, XFEATURE_MASK_XTILE_DATA);
+
+	/*
+	 * XTILEDATA is cleared in xstate_bv but set in xcomp_bv, this property
+	 * remains the same even when amx tiledata is disabled by IA32_XFD.
+	 */
+	xstate->header.xstate_bv = XFEATURE_MASK_XTILE_DATA;
+	__xsavec(xstate, XFEATURE_MASK_XTILE_DATA);
+	GUEST_ASSERT(!(xstate->header.xstate_bv & XFEATURE_MASK_XTILE_DATA));
+	GUEST_ASSERT((xstate->header.xcomp_bv & XFEATURE_MASK_XTILE_DATA));
+
+	GUEST_SYNC(6);
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD) == XFEATURE_MASK_XTILE_DATA);
+	set_tilecfg(amx_cfg);
+	__ldtilecfg(amx_cfg);
+	/* Trigger #NM exception */
+	__tileloadd(tiledata);
+	GUEST_SYNC(10);
+
+	GUEST_DONE();
+}
+
+void guest_nm_handler(struct ex_regs *regs)
+{
+	/* Check if #NM is triggered by XFEATURE_MASK_XTILE_DATA */
+	GUEST_SYNC(7);
+	GUEST_ASSERT(!(get_cr0() & X86_CR0_TS));
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD_ERR) == XFEATURE_MASK_XTILE_DATA);
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD) == XFEATURE_MASK_XTILE_DATA);
+	GUEST_SYNC(8);
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD_ERR) == XFEATURE_MASK_XTILE_DATA);
+	GUEST_ASSERT(rdmsr(MSR_IA32_XFD) == XFEATURE_MASK_XTILE_DATA);
+	/* Clear xfd_err */
+	wrmsr(MSR_IA32_XFD_ERR, 0);
+	/* xfd=0, enable amx */
+	wrmsr(MSR_IA32_XFD, 0);
+	GUEST_SYNC(9);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_regs regs1, regs2;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_x86_state *state;
+	int xsave_restore_size;
+	vm_vaddr_t amx_cfg, tiledata, xstate;
+	struct ucall uc;
+	u32 amx_offset;
+	int ret;
+
+	/*
+	 * Note, all off-by-default features must be enabled before anything
+	 * caches KVM_GET_SUPPORTED_CPUID, e.g. before using kvm_cpu_has().
+	 */
+	vm_xsave_require_permission(XFEATURE_MASK_XTILE_DATA);
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XFD));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XSAVE));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_AMX_TILE));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILECFG));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILEDATA));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XTILEDATA_XFD));
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	TEST_ASSERT(kvm_cpu_has_p(X86_PROPERTY_XSTATE_MAX_SIZE),
+		    "KVM should enumerate max XSAVE size when XSAVE is supported");
+	xsave_restore_size = kvm_cpu_property(X86_PROPERTY_XSTATE_MAX_SIZE);
+
+	vcpu_regs_get(vcpu, &regs1);
+
+	/* Register #NM handler */
+	vm_install_exception_handler(vm, NM_VECTOR, guest_nm_handler);
+
+	/* amx cfg for guest_code */
+	amx_cfg = vm_vaddr_alloc_page(vm);
+	memset(addr_gva2hva(vm, amx_cfg), 0x0, getpagesize());
+
+	/* amx tiledata for guest_code */
+	tiledata = vm_vaddr_alloc_pages(vm, 2);
+	memset(addr_gva2hva(vm, tiledata), rand() | 1, 2 * getpagesize());
+
+	/* XSAVE state for guest_code */
+	xstate = vm_vaddr_alloc_pages(vm, DIV_ROUND_UP(XSAVE_SIZE, PAGE_SIZE));
+	memset(addr_gva2hva(vm, xstate), 0, PAGE_SIZE * DIV_ROUND_UP(XSAVE_SIZE, PAGE_SIZE));
+	vcpu_args_set(vcpu, 3, amx_cfg, tiledata, xstate);
+
+	for (;;) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			switch (uc.args[1]) {
+			case 1:
+			case 2:
+			case 3:
+			case 5:
+			case 6:
+			case 7:
+			case 8:
+				fprintf(stderr, "GUEST_SYNC(%ld)\n", uc.args[1]);
+				break;
+			case 4:
+			case 10:
+				fprintf(stderr,
+				"GUEST_SYNC(%ld), check save/restore status\n", uc.args[1]);
+
+				/* Compacted mode, get amx offset by xsave area
+				 * size subtract 8K amx size.
+				 */
+				amx_offset = xsave_restore_size - NUM_TILES*TILE_SIZE;
+				state = vcpu_save_state(vcpu);
+				void *amx_start = (void *)state->xsave + amx_offset;
+				void *tiles_data = (void *)addr_gva2hva(vm, tiledata);
+				/* Only check TMM0 register, 1 tile */
+				ret = memcmp(amx_start, tiles_data, TILE_SIZE);
+				TEST_ASSERT(ret == 0, "memcmp failed, ret=%d", ret);
+				kvm_x86_state_cleanup(state);
+				break;
+			case 9:
+				fprintf(stderr,
+				"GUEST_SYNC(%ld), #NM exception and enable amx\n", uc.args[1]);
+				break;
+			}
+			break;
+		case UCALL_DONE:
+			fprintf(stderr, "UCALL_DONE\n");
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		state = vcpu_save_state(vcpu);
+		memset(&regs1, 0, sizeof(regs1));
+		vcpu_regs_get(vcpu, &regs1);
+
+		kvm_vm_release(vm);
+
+		/* Restore state in a new VM.  */
+		vcpu = vm_recreate_with_one_vcpu(vm);
+		vcpu_load_state(vcpu, state);
+		kvm_x86_state_cleanup(state);
+
+		memset(&regs2, 0, sizeof(regs2));
+		vcpu_regs_get(vcpu, &regs2);
+		TEST_ASSERT(!memcmp(&regs1, &regs2, sizeof(regs2)),
+			    "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx",
+			    (ulong) regs2.rdi, (ulong) regs2.rsi);
+	}
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/aperfmperf_test.c b/tools/testing/selftests/kvm/x86/aperfmperf_test.c
new file mode 100644
index 000000000000..8b15a13df939
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/aperfmperf_test.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test for KVM_X86_DISABLE_EXITS_APERFMPERF
+ *
+ * Copyright (C) 2025, Google LLC.
+ *
+ * Test the ability to disable VM-exits for rdmsr of IA32_APERF and
+ * IA32_MPERF. When these VM-exits are disabled, reads of these MSRs
+ * return the host's values.
+ *
+ * Note: Requires read access to /dev/cpu/<lpu>/msr to read host MSRs.
+ */
+
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <asm/msr-index.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "test_util.h"
+#include "vmx.h"
+
+#define NUM_ITERATIONS 10000
+
+static int open_dev_msr(int cpu)
+{
+	char path[PATH_MAX];
+
+	snprintf(path, sizeof(path), "/dev/cpu/%d/msr", cpu);
+	return open_path_or_exit(path, O_RDONLY);
+}
+
+static uint64_t read_dev_msr(int msr_fd, uint32_t msr)
+{
+	uint64_t data;
+	ssize_t rc;
+
+	rc = pread(msr_fd, &data, sizeof(data), msr);
+	TEST_ASSERT(rc == sizeof(data), "Read of MSR 0x%x failed", msr);
+
+	return data;
+}
+
+static void guest_read_aperf_mperf(void)
+{
+	int i;
+
+	for (i = 0; i < NUM_ITERATIONS; i++)
+		GUEST_SYNC2(rdmsr(MSR_IA32_APERF), rdmsr(MSR_IA32_MPERF));
+}
+
+#define L2_GUEST_STACK_SIZE	64
+
+static void l2_guest_code(void)
+{
+	guest_read_aperf_mperf();
+	GUEST_DONE();
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	generic_svm_setup(svm, l2_guest_code, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	run_guest(vmcb, svm->vmcb_gpa);
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT_EQ(prepare_for_vmx_operation(vmx), true);
+	GUEST_ASSERT_EQ(load_vmcs(vmx), true);
+
+	prepare_vmcs(vmx, NULL, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/*
+	 * Enable MSR bitmaps (the bitmap itself is allocated, zeroed, and set
+	 * in the VMCS by prepare_vmcs()), as MSR exiting mandatory on Intel.
+	 */
+	vmwrite(CPU_BASED_VM_EXEC_CONTROL,
+		vmreadz(CPU_BASED_VM_EXEC_CONTROL) | CPU_BASED_USE_MSR_BITMAPS);
+
+	GUEST_ASSERT(!vmwrite(GUEST_RIP, (u64)l2_guest_code));
+	GUEST_ASSERT(!vmlaunch());
+}
+
+static void guest_code(void *nested_test_data)
+{
+	guest_read_aperf_mperf();
+
+	if (this_cpu_has(X86_FEATURE_SVM))
+		l1_svm_code(nested_test_data);
+	else if (this_cpu_has(X86_FEATURE_VMX))
+		l1_vmx_code(nested_test_data);
+	else
+		GUEST_DONE();
+
+	TEST_FAIL("L2 should have signaled 'done'");
+}
+
+static void guest_no_aperfmperf(void)
+{
+	uint64_t msr_val;
+	uint8_t vector;
+
+	vector = rdmsr_safe(MSR_IA32_APERF, &msr_val);
+	GUEST_ASSERT(vector == GP_VECTOR);
+
+	vector = rdmsr_safe(MSR_IA32_APERF, &msr_val);
+	GUEST_ASSERT(vector == GP_VECTOR);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	const bool has_nested = kvm_cpu_has(X86_FEATURE_SVM) || kvm_cpu_has(X86_FEATURE_VMX);
+	uint64_t host_aperf_before, host_mperf_before;
+	vm_vaddr_t nested_test_data_gva;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int msr_fd, cpu, i;
+
+	/* Sanity check that APERF/MPERF are unsupported by default. */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_no_aperfmperf);
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+	kvm_vm_free(vm);
+
+	cpu = pin_self_to_any_cpu();
+
+	msr_fd = open_dev_msr(cpu);
+
+	/*
+	 * This test requires a non-standard VM initialization, because
+	 * KVM_ENABLE_CAP cannot be used on a VM file descriptor after
+	 * a VCPU has been created.
+	 */
+	vm = vm_create(1);
+
+	TEST_REQUIRE(vm_check_cap(vm, KVM_CAP_X86_DISABLE_EXITS) &
+		     KVM_X86_DISABLE_EXITS_APERFMPERF);
+
+	vm_enable_cap(vm, KVM_CAP_X86_DISABLE_EXITS,
+		      KVM_X86_DISABLE_EXITS_APERFMPERF);
+
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+
+	if (!has_nested)
+		nested_test_data_gva = NONCANONICAL;
+	else if (kvm_cpu_has(X86_FEATURE_SVM))
+		vcpu_alloc_svm(vm, &nested_test_data_gva);
+	else
+		vcpu_alloc_vmx(vm, &nested_test_data_gva);
+
+	vcpu_args_set(vcpu, 1, nested_test_data_gva);
+
+	host_aperf_before = read_dev_msr(msr_fd, MSR_IA32_APERF);
+	host_mperf_before = read_dev_msr(msr_fd, MSR_IA32_MPERF);
+
+	for (i = 0; i <= NUM_ITERATIONS * (1 + has_nested); i++) {
+		uint64_t host_aperf_after, host_mperf_after;
+		uint64_t guest_aperf, guest_mperf;
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_DONE:
+			goto done;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		case UCALL_SYNC:
+			guest_aperf = uc.args[0];
+			guest_mperf = uc.args[1];
+
+			host_aperf_after = read_dev_msr(msr_fd, MSR_IA32_APERF);
+			host_mperf_after = read_dev_msr(msr_fd, MSR_IA32_MPERF);
+
+			TEST_ASSERT(host_aperf_before < guest_aperf,
+				    "APERF: host_before (0x%" PRIx64 ") >= guest (0x%" PRIx64 ")",
+				    host_aperf_before, guest_aperf);
+			TEST_ASSERT(guest_aperf < host_aperf_after,
+				    "APERF: guest (0x%" PRIx64 ") >= host_after (0x%" PRIx64 ")",
+				    guest_aperf, host_aperf_after);
+			TEST_ASSERT(host_mperf_before < guest_mperf,
+				    "MPERF: host_before (0x%" PRIx64 ") >= guest (0x%" PRIx64 ")",
+				    host_mperf_before, guest_mperf);
+			TEST_ASSERT(guest_mperf < host_mperf_after,
+				    "MPERF: guest (0x%" PRIx64 ") >= host_after (0x%" PRIx64 ")",
+				    guest_mperf, host_mperf_after);
+
+			host_aperf_before = host_aperf_after;
+			host_mperf_before = host_mperf_after;
+
+			break;
+		}
+	}
+	TEST_FAIL("Didn't receive UCALL_DONE\n");
+done:
+	kvm_vm_free(vm);
+	close(msr_fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/apic_bus_clock_test.c b/tools/testing/selftests/kvm/x86/apic_bus_clock_test.c
new file mode 100644
index 000000000000..f8916bb34405
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/apic_bus_clock_test.c
@@ -0,0 +1,194 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024 Intel Corporation
+ *
+ * Verify KVM correctly emulates the APIC bus frequency when the VMM configures
+ * the frequency via KVM_CAP_X86_APIC_BUS_CYCLES_NS.  Start the APIC timer by
+ * programming TMICT (timer initial count) to the largest value possible (so
+ * that the timer will not expire during the test).  Then, after an arbitrary
+ * amount of time has elapsed, verify TMCCT (timer current count) is within 1%
+ * of the expected value based on the time elapsed, the APIC bus frequency, and
+ * the programmed TDCR (timer divide configuration register).
+ */
+
+#include "apic.h"
+#include "test_util.h"
+
+/*
+ * Possible TDCR values with matching divide count. Used to modify APIC
+ * timer frequency.
+ */
+static const struct {
+	const uint32_t tdcr;
+	const uint32_t divide_count;
+} tdcrs[] = {
+	{0x0, 2},
+	{0x1, 4},
+	{0x2, 8},
+	{0x3, 16},
+	{0x8, 32},
+	{0x9, 64},
+	{0xa, 128},
+	{0xb, 1},
+};
+
+static bool is_x2apic;
+
+static void apic_enable(void)
+{
+	if (is_x2apic)
+		x2apic_enable();
+	else
+		xapic_enable();
+}
+
+static uint32_t apic_read_reg(unsigned int reg)
+{
+	return is_x2apic ? x2apic_read_reg(reg) : xapic_read_reg(reg);
+}
+
+static void apic_write_reg(unsigned int reg, uint32_t val)
+{
+	if (is_x2apic)
+		x2apic_write_reg(reg, val);
+	else
+		xapic_write_reg(reg, val);
+}
+
+static void apic_guest_code(uint64_t apic_hz, uint64_t delay_ms)
+{
+	uint64_t tsc_hz = guest_tsc_khz * 1000;
+	const uint32_t tmict = ~0u;
+	uint64_t tsc0, tsc1, freq;
+	uint32_t tmcct;
+	int i;
+
+	apic_enable();
+
+	/*
+	 * Setup one-shot timer.  The vector does not matter because the
+	 * interrupt should not fire.
+	 */
+	apic_write_reg(APIC_LVTT, APIC_LVT_TIMER_ONESHOT | APIC_LVT_MASKED);
+
+	for (i = 0; i < ARRAY_SIZE(tdcrs); i++) {
+		apic_write_reg(APIC_TDCR, tdcrs[i].tdcr);
+		apic_write_reg(APIC_TMICT, tmict);
+
+		tsc0 = rdtsc();
+		udelay(delay_ms * 1000);
+		tmcct = apic_read_reg(APIC_TMCCT);
+		tsc1 = rdtsc();
+
+		/*
+		 * Stop the timer _after_ reading the current, final count, as
+		 * writing the initial counter also modifies the current count.
+		 */
+		apic_write_reg(APIC_TMICT, 0);
+
+		freq = (tmict - tmcct) * tdcrs[i].divide_count * tsc_hz / (tsc1 - tsc0);
+		/* Check if measured frequency is within 5% of configured frequency. */
+		__GUEST_ASSERT(freq < apic_hz * 105 / 100 && freq > apic_hz * 95 / 100,
+			       "Frequency = %lu (wanted %lu - %lu), bus = %lu, div = %u, tsc = %lu",
+			       freq, apic_hz * 95 / 100, apic_hz * 105 / 100,
+			       apic_hz, tdcrs[i].divide_count, tsc_hz);
+	}
+
+	GUEST_DONE();
+}
+
+static void test_apic_bus_clock(struct kvm_vcpu *vcpu)
+{
+	bool done = false;
+	struct ucall uc;
+
+	while (!done) {
+		vcpu_run(vcpu);
+
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_DONE:
+			done = true;
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+			break;
+		}
+	}
+}
+
+static void run_apic_bus_clock_test(uint64_t apic_hz, uint64_t delay_ms,
+				    bool x2apic)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int ret;
+
+	is_x2apic = x2apic;
+
+	vm = vm_create(1);
+
+	sync_global_to_guest(vm, is_x2apic);
+
+	vm_enable_cap(vm, KVM_CAP_X86_APIC_BUS_CYCLES_NS,
+		      NSEC_PER_SEC / apic_hz);
+
+	vcpu = vm_vcpu_add(vm, 0, apic_guest_code);
+	vcpu_args_set(vcpu, 2, apic_hz, delay_ms);
+
+	ret = __vm_enable_cap(vm, KVM_CAP_X86_APIC_BUS_CYCLES_NS,
+			      NSEC_PER_SEC / apic_hz);
+	TEST_ASSERT(ret < 0 && errno == EINVAL,
+		    "Setting of APIC bus frequency after vCPU is created should fail.");
+
+	if (!is_x2apic)
+		virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
+
+	test_apic_bus_clock(vcpu);
+	kvm_vm_free(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-d delay] [-f APIC bus freq]\n", name);
+	puts("");
+	printf("-d: Delay (in msec) guest uses to measure APIC bus frequency.\n");
+	printf("-f: The APIC bus frequency (in MHz) to be configured for the guest.\n");
+	puts("");
+}
+
+int main(int argc, char *argv[])
+{
+	/*
+	 * Arbitrarilty default to 25MHz for the APIC bus frequency, which is
+	 * different enough from the default 1GHz to be interesting.
+	 */
+	uint64_t apic_hz = 25 * 1000 * 1000;
+	uint64_t delay_ms = 100;
+	int opt;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_X86_APIC_BUS_CYCLES_NS));
+
+	while ((opt = getopt(argc, argv, "d:f:h")) != -1) {
+		switch (opt) {
+		case 'f':
+			apic_hz = atoi_positive("APIC bus frequency", optarg) * 1000 * 1000;
+			break;
+		case 'd':
+			delay_ms = atoi_positive("Delay in milliseconds", optarg);
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			exit(KSFT_SKIP);
+		}
+	}
+
+	run_apic_bus_clock_test(apic_hz, delay_ms, false);
+	run_apic_bus_clock_test(apic_hz, delay_ms, true);
+}
diff --git a/tools/testing/selftests/kvm/x86/cpuid_test.c b/tools/testing/selftests/kvm/x86/cpuid_test.c
new file mode 100644
index 000000000000..7b3fda6842bc
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/cpuid_test.c
@@ -0,0 +1,225 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Red Hat Inc.
+ *
+ * Generic tests for KVM CPUID set/get ioctls
+ */
+#include <asm/kvm_para.h>
+#include <linux/kvm_para.h>
+#include <stdint.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+struct cpuid_mask {
+	union {
+		struct {
+			u32 eax;
+			u32 ebx;
+			u32 ecx;
+			u32 edx;
+		};
+		u32 regs[4];
+	};
+};
+
+static void test_guest_cpuids(struct kvm_cpuid2 *guest_cpuid)
+{
+	int i;
+	u32 eax, ebx, ecx, edx;
+
+	for (i = 0; i < guest_cpuid->nent; i++) {
+		__cpuid(guest_cpuid->entries[i].function,
+			guest_cpuid->entries[i].index,
+			&eax, &ebx, &ecx, &edx);
+
+		GUEST_ASSERT_EQ(eax, guest_cpuid->entries[i].eax);
+		GUEST_ASSERT_EQ(ebx, guest_cpuid->entries[i].ebx);
+		GUEST_ASSERT_EQ(ecx, guest_cpuid->entries[i].ecx);
+		GUEST_ASSERT_EQ(edx, guest_cpuid->entries[i].edx);
+	}
+
+}
+
+static void guest_main(struct kvm_cpuid2 *guest_cpuid)
+{
+	GUEST_SYNC(1);
+
+	test_guest_cpuids(guest_cpuid);
+
+	GUEST_SYNC(2);
+
+	GUEST_ASSERT_EQ(this_cpu_property(X86_PROPERTY_MAX_KVM_LEAF), 0x40000001);
+
+	GUEST_DONE();
+}
+
+static struct cpuid_mask get_const_cpuid_mask(const struct kvm_cpuid_entry2 *entry)
+{
+	struct cpuid_mask mask;
+
+	memset(&mask, 0xff, sizeof(mask));
+
+	switch (entry->function) {
+	case 0x1:
+		mask.regs[X86_FEATURE_OSXSAVE.reg] &= ~BIT(X86_FEATURE_OSXSAVE.bit);
+		break;
+	case 0x7:
+		mask.regs[X86_FEATURE_OSPKE.reg] &= ~BIT(X86_FEATURE_OSPKE.bit);
+		break;
+	case 0xd:
+		/*
+		 * CPUID.0xD.{0,1}.EBX enumerate XSAVE size based on the current
+		 * XCR0 and IA32_XSS MSR values.
+		 */
+		if (entry->index < 2)
+			mask.ebx = 0;
+		break;
+	}
+	return mask;
+}
+
+static void compare_cpuids(const struct kvm_cpuid2 *cpuid1,
+			   const struct kvm_cpuid2 *cpuid2)
+{
+	const struct kvm_cpuid_entry2 *e1, *e2;
+	int i;
+
+	TEST_ASSERT(cpuid1->nent == cpuid2->nent,
+		    "CPUID nent mismatch: %d vs. %d", cpuid1->nent, cpuid2->nent);
+
+	for (i = 0; i < cpuid1->nent; i++) {
+		struct cpuid_mask mask;
+
+		e1 = &cpuid1->entries[i];
+		e2 = &cpuid2->entries[i];
+
+		TEST_ASSERT(e1->function == e2->function &&
+			    e1->index == e2->index && e1->flags == e2->flags,
+			    "CPUID entries[%d] mismtach: 0x%x.%d.%x vs. 0x%x.%d.%x",
+			    i, e1->function, e1->index, e1->flags,
+			    e2->function, e2->index, e2->flags);
+
+		/* Mask off dynamic bits, e.g. OSXSAVE, when comparing entries. */
+		mask = get_const_cpuid_mask(e1);
+
+		TEST_ASSERT((e1->eax & mask.eax) == (e2->eax & mask.eax) &&
+			    (e1->ebx & mask.ebx) == (e2->ebx & mask.ebx) &&
+			    (e1->ecx & mask.ecx) == (e2->ecx & mask.ecx) &&
+			    (e1->edx & mask.edx) == (e2->edx & mask.edx),
+			    "CPUID 0x%x.%x differ: 0x%x:0x%x:0x%x:0x%x vs 0x%x:0x%x:0x%x:0x%x",
+			    e1->function, e1->index,
+			    e1->eax & mask.eax, e1->ebx & mask.ebx,
+			    e1->ecx & mask.ecx, e1->edx & mask.edx,
+			    e2->eax & mask.eax, e2->ebx & mask.ebx,
+			    e2->ecx & mask.ecx, e2->edx & mask.edx);
+	}
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage + 1,
+			    "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage + 1, (ulong)uc.args[1]);
+		return;
+	case UCALL_DONE:
+		return;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_ASSERT(false, "Unexpected exit: %s",
+			    exit_reason_str(vcpu->run->exit_reason));
+	}
+}
+
+struct kvm_cpuid2 *vcpu_alloc_cpuid(struct kvm_vm *vm, vm_vaddr_t *p_gva, struct kvm_cpuid2 *cpuid)
+{
+	int size = sizeof(*cpuid) + cpuid->nent * sizeof(cpuid->entries[0]);
+	vm_vaddr_t gva = vm_vaddr_alloc(vm, size, KVM_UTIL_MIN_VADDR);
+	struct kvm_cpuid2 *guest_cpuids = addr_gva2hva(vm, gva);
+
+	memcpy(guest_cpuids, cpuid, size);
+
+	*p_gva = gva;
+	return guest_cpuids;
+}
+
+static void set_cpuid_after_run(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *ent;
+	int rc;
+	u32 eax, ebx, x;
+
+	/* Setting unmodified CPUID is allowed */
+	rc = __vcpu_set_cpuid(vcpu);
+	TEST_ASSERT(!rc, "Setting unmodified CPUID after KVM_RUN failed: %d", rc);
+
+	/* Changing CPU features is forbidden */
+	ent = vcpu_get_cpuid_entry(vcpu, 0x7);
+	ebx = ent->ebx;
+	ent->ebx--;
+	rc = __vcpu_set_cpuid(vcpu);
+	TEST_ASSERT(rc, "Changing CPU features should fail");
+	ent->ebx = ebx;
+
+	/* Changing MAXPHYADDR is forbidden */
+	ent = vcpu_get_cpuid_entry(vcpu, 0x80000008);
+	eax = ent->eax;
+	x = eax & 0xff;
+	ent->eax = (eax & ~0xffu) | (x - 1);
+	rc = __vcpu_set_cpuid(vcpu);
+	TEST_ASSERT(rc, "Changing MAXPHYADDR should fail");
+	ent->eax = eax;
+}
+
+static void test_get_cpuid2(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid2 *cpuid = allocate_kvm_cpuid2(vcpu->cpuid->nent + 1);
+	int i, r;
+
+	vcpu_ioctl(vcpu, KVM_GET_CPUID2, cpuid);
+	TEST_ASSERT(cpuid->nent == vcpu->cpuid->nent,
+		    "KVM didn't update nent on success, wanted %u, got %u",
+		    vcpu->cpuid->nent, cpuid->nent);
+
+	for (i = 0; i < vcpu->cpuid->nent; i++) {
+		cpuid->nent = i;
+		r = __vcpu_ioctl(vcpu, KVM_GET_CPUID2, cpuid);
+		TEST_ASSERT(r && errno == E2BIG, KVM_IOCTL_ERROR(KVM_GET_CPUID2, r));
+		TEST_ASSERT(cpuid->nent == i, "KVM modified nent on failure");
+	}
+	free(cpuid);
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	vm_vaddr_t cpuid_gva;
+	struct kvm_vm *vm;
+	int stage;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+
+	compare_cpuids(kvm_get_supported_cpuid(), vcpu->cpuid);
+
+	vcpu_alloc_cpuid(vm, &cpuid_gva, vcpu->cpuid);
+
+	vcpu_args_set(vcpu, 1, cpuid_gva);
+
+	for (stage = 0; stage < 3; stage++)
+		run_vcpu(vcpu, stage);
+
+	set_cpuid_after_run(vcpu);
+
+	test_get_cpuid2(vcpu);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/cr4_cpuid_sync_test.c b/tools/testing/selftests/kvm/x86/cr4_cpuid_sync_test.c
new file mode 100644
index 000000000000..28cc66454601
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/cr4_cpuid_sync_test.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * CR4 and CPUID sync test
+ *
+ * Copyright 2018, Red Hat, Inc. and/or its affiliates.
+ *
+ * Author:
+ *   Wei Huang <wei@redhat.com>
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+
+#define MAGIC_HYPERCALL_PORT	0x80
+
+static void guest_code(void)
+{
+	u32 regs[4] = {
+		[KVM_CPUID_EAX] = X86_FEATURE_OSXSAVE.function,
+		[KVM_CPUID_ECX] = X86_FEATURE_OSXSAVE.index,
+	};
+
+	/* CR4.OSXSAVE should be enabled by default (for selftests vCPUs). */
+	GUEST_ASSERT(get_cr4() & X86_CR4_OSXSAVE);
+
+	/* verify CR4.OSXSAVE == CPUID.OSXSAVE */
+	GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSXSAVE));
+
+	/*
+	 * Notify hypervisor to clear CR4.0SXSAVE, do CPUID and save output,
+	 * and then restore CR4.  Do this all in  assembly to ensure no AVX
+	 * instructions are executed while OSXSAVE=0.
+	 */
+	asm volatile (
+		"out %%al, $" __stringify(MAGIC_HYPERCALL_PORT) "\n\t"
+		"cpuid\n\t"
+		"mov %%rdi, %%cr4\n\t"
+		: "+a" (regs[KVM_CPUID_EAX]),
+		  "=b" (regs[KVM_CPUID_EBX]),
+		  "+c" (regs[KVM_CPUID_ECX]),
+		  "=d" (regs[KVM_CPUID_EDX])
+		: "D" (get_cr4())
+	);
+
+	/* Verify KVM cleared OSXSAVE in CPUID when it was cleared in CR4. */
+	GUEST_ASSERT(!(regs[X86_FEATURE_OSXSAVE.reg] & BIT(X86_FEATURE_OSXSAVE.bit)));
+
+	/* Verify restoring CR4 also restored OSXSAVE in CPUID. */
+	GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSXSAVE));
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_sregs sregs;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XSAVE));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	while (1) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		if (vcpu->run->io.port == MAGIC_HYPERCALL_PORT &&
+		    vcpu->run->io.direction == KVM_EXIT_IO_OUT) {
+			/* emulate hypervisor clearing CR4.OSXSAVE */
+			vcpu_sregs_get(vcpu, &sregs);
+			sregs.cr4 &= ~X86_CR4_OSXSAVE;
+			vcpu_sregs_set(vcpu, &sregs);
+			continue;
+		}
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/debug_regs.c b/tools/testing/selftests/kvm/x86/debug_regs.c
new file mode 100644
index 000000000000..2d814c1d1dc4
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/debug_regs.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM guest debug register tests
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <string.h>
+#include "kvm_util.h"
+#include "processor.h"
+#include "apic.h"
+
+#define DR6_BD		(1 << 13)
+#define DR7_GD		(1 << 13)
+
+#define IRQ_VECTOR 0xAA
+
+/* For testing data access debug BP */
+uint32_t guest_value;
+
+extern unsigned char sw_bp, hw_bp, write_data, ss_start, bd_start;
+
+static void guest_code(void)
+{
+	/* Create a pending interrupt on current vCPU */
+	x2apic_enable();
+	x2apic_write_reg(APIC_ICR, APIC_DEST_SELF | APIC_INT_ASSERT |
+			 APIC_DM_FIXED | IRQ_VECTOR);
+
+	/*
+	 * Software BP tests.
+	 *
+	 * NOTE: sw_bp need to be before the cmd here, because int3 is an
+	 * exception rather than a normal trap for KVM_SET_GUEST_DEBUG (we
+	 * capture it using the vcpu exception bitmap).
+	 */
+	asm volatile("sw_bp: int3");
+
+	/* Hardware instruction BP test */
+	asm volatile("hw_bp: nop");
+
+	/* Hardware data BP test */
+	asm volatile("mov $1234,%%rax;\n\t"
+		     "mov %%rax,%0;\n\t write_data:"
+		     : "=m" (guest_value) : : "rax");
+
+	/*
+	 * Single step test, covers 2 basic instructions and 2 emulated
+	 *
+	 * Enable interrupts during the single stepping to see that pending
+	 * interrupt we raised is not handled due to KVM_GUESTDBG_BLOCKIRQ.
+	 *
+	 * Write MSR_IA32_TSC_DEADLINE to verify that KVM's fastpath handler
+	 * exits to userspace due to single-step being enabled.
+	 */
+	asm volatile("ss_start: "
+		     "sti\n\t"
+		     "xor %%eax,%%eax\n\t"
+		     "cpuid\n\t"
+		     "movl $" __stringify(MSR_IA32_TSC_DEADLINE) ", %%ecx\n\t"
+		     "wrmsr\n\t"
+		     "cli\n\t"
+		     : : : "eax", "ebx", "ecx", "edx");
+
+	/* DR6.BD test */
+	asm volatile("bd_start: mov %%dr0, %%rax" : : : "rax");
+	GUEST_DONE();
+}
+
+#define  CAST_TO_RIP(v)  ((unsigned long long)&(v))
+
+static void vcpu_skip_insn(struct kvm_vcpu *vcpu, int insn_len)
+{
+	struct kvm_regs regs;
+
+	vcpu_regs_get(vcpu, &regs);
+	regs.rip += insn_len;
+	vcpu_regs_set(vcpu, &regs);
+}
+
+int main(void)
+{
+	struct kvm_guest_debug debug;
+	unsigned long long target_dr6, target_rip;
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	uint64_t cmd;
+	int i;
+	/* Instruction lengths starting at ss_start */
+	int ss_size[6] = {
+		1,		/* sti*/
+		2,		/* xor */
+		2,		/* cpuid */
+		5,		/* mov */
+		2,		/* rdmsr */
+		1,		/* cli */
+	};
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SET_GUEST_DEBUG));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	run = vcpu->run;
+
+	/* Test software BPs - int3 */
+	memset(&debug, 0, sizeof(debug));
+	debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_SW_BP;
+	vcpu_guest_debug_set(vcpu, &debug);
+	vcpu_run(vcpu);
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
+		    run->debug.arch.exception == BP_VECTOR &&
+		    run->debug.arch.pc == CAST_TO_RIP(sw_bp),
+		    "INT3: exit %d exception %d rip 0x%llx (should be 0x%llx)",
+		    run->exit_reason, run->debug.arch.exception,
+		    run->debug.arch.pc, CAST_TO_RIP(sw_bp));
+	vcpu_skip_insn(vcpu, 1);
+
+	/* Test instruction HW BP over DR[0-3] */
+	for (i = 0; i < 4; i++) {
+		memset(&debug, 0, sizeof(debug));
+		debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP;
+		debug.arch.debugreg[i] = CAST_TO_RIP(hw_bp);
+		debug.arch.debugreg[7] = 0x400 | (1UL << (2*i+1));
+		vcpu_guest_debug_set(vcpu, &debug);
+		vcpu_run(vcpu);
+		target_dr6 = 0xffff0ff0 | (1UL << i);
+		TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
+			    run->debug.arch.exception == DB_VECTOR &&
+			    run->debug.arch.pc == CAST_TO_RIP(hw_bp) &&
+			    run->debug.arch.dr6 == target_dr6,
+			    "INS_HW_BP (DR%d): exit %d exception %d rip 0x%llx "
+			    "(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
+			    i, run->exit_reason, run->debug.arch.exception,
+			    run->debug.arch.pc, CAST_TO_RIP(hw_bp),
+			    run->debug.arch.dr6, target_dr6);
+	}
+	/* Skip "nop" */
+	vcpu_skip_insn(vcpu, 1);
+
+	/* Test data access HW BP over DR[0-3] */
+	for (i = 0; i < 4; i++) {
+		memset(&debug, 0, sizeof(debug));
+		debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP;
+		debug.arch.debugreg[i] = CAST_TO_RIP(guest_value);
+		debug.arch.debugreg[7] = 0x00000400 | (1UL << (2*i+1)) |
+		    (0x000d0000UL << (4*i));
+		vcpu_guest_debug_set(vcpu, &debug);
+		vcpu_run(vcpu);
+		target_dr6 = 0xffff0ff0 | (1UL << i);
+		TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
+			    run->debug.arch.exception == DB_VECTOR &&
+			    run->debug.arch.pc == CAST_TO_RIP(write_data) &&
+			    run->debug.arch.dr6 == target_dr6,
+			    "DATA_HW_BP (DR%d): exit %d exception %d rip 0x%llx "
+			    "(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
+			    i, run->exit_reason, run->debug.arch.exception,
+			    run->debug.arch.pc, CAST_TO_RIP(write_data),
+			    run->debug.arch.dr6, target_dr6);
+		/* Rollback the 4-bytes "mov" */
+		vcpu_skip_insn(vcpu, -7);
+	}
+	/* Skip the 4-bytes "mov" */
+	vcpu_skip_insn(vcpu, 7);
+
+	/* Test single step */
+	target_rip = CAST_TO_RIP(ss_start);
+	target_dr6 = 0xffff4ff0ULL;
+	for (i = 0; i < ARRAY_SIZE(ss_size); i++) {
+		target_rip += ss_size[i];
+		memset(&debug, 0, sizeof(debug));
+		debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_SINGLESTEP |
+				KVM_GUESTDBG_BLOCKIRQ;
+		debug.arch.debugreg[7] = 0x00000400;
+		vcpu_guest_debug_set(vcpu, &debug);
+		vcpu_run(vcpu);
+		TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
+			    run->debug.arch.exception == DB_VECTOR &&
+			    run->debug.arch.pc == target_rip &&
+			    run->debug.arch.dr6 == target_dr6,
+			    "SINGLE_STEP[%d]: exit %d exception %d rip 0x%llx "
+			    "(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
+			    i, run->exit_reason, run->debug.arch.exception,
+			    run->debug.arch.pc, target_rip, run->debug.arch.dr6,
+			    target_dr6);
+	}
+
+	/* Finally test global disable */
+	memset(&debug, 0, sizeof(debug));
+	debug.control = KVM_GUESTDBG_ENABLE | KVM_GUESTDBG_USE_HW_BP;
+	debug.arch.debugreg[7] = 0x400 | DR7_GD;
+	vcpu_guest_debug_set(vcpu, &debug);
+	vcpu_run(vcpu);
+	target_dr6 = 0xffff0ff0 | DR6_BD;
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_DEBUG &&
+		    run->debug.arch.exception == DB_VECTOR &&
+		    run->debug.arch.pc == CAST_TO_RIP(bd_start) &&
+		    run->debug.arch.dr6 == target_dr6,
+			    "DR7.GD: exit %d exception %d rip 0x%llx "
+			    "(should be 0x%llx) dr6 0x%llx (should be 0x%llx)",
+			    run->exit_reason, run->debug.arch.exception,
+			    run->debug.arch.pc, target_rip, run->debug.arch.dr6,
+			    target_dr6);
+
+	/* Disable all debug controls, run to the end */
+	memset(&debug, 0, sizeof(debug));
+	vcpu_guest_debug_set(vcpu, &debug);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	cmd = get_ucall(vcpu, &uc);
+	TEST_ASSERT(cmd == UCALL_DONE, "UCALL_DONE");
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/dirty_log_page_splitting_test.c b/tools/testing/selftests/kvm/x86/dirty_log_page_splitting_test.c
new file mode 100644
index 000000000000..b0d2b04a7ff2
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/dirty_log_page_splitting_test.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM dirty logging page splitting test
+ *
+ * Based on dirty_log_perf.c
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ * Copyright (C) 2023, Google, Inc.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <pthread.h>
+#include <linux/bitmap.h>
+
+#include "kvm_util.h"
+#include "test_util.h"
+#include "memstress.h"
+#include "guest_modes.h"
+#include "ucall_common.h"
+
+#define VCPUS		2
+#define SLOTS		2
+#define ITERATIONS	2
+
+static uint64_t guest_percpu_mem_size = DEFAULT_PER_VCPU_MEM_SIZE;
+
+static enum vm_mem_backing_src_type backing_src = VM_MEM_SRC_ANONYMOUS_HUGETLB;
+
+static u64 dirty_log_manual_caps;
+static bool host_quit;
+static int iteration;
+static int vcpu_last_completed_iteration[KVM_MAX_VCPUS];
+
+struct kvm_page_stats {
+	uint64_t pages_4k;
+	uint64_t pages_2m;
+	uint64_t pages_1g;
+	uint64_t hugepages;
+};
+
+static void get_page_stats(struct kvm_vm *vm, struct kvm_page_stats *stats, const char *stage)
+{
+	stats->pages_4k = vm_get_stat(vm, pages_4k);
+	stats->pages_2m = vm_get_stat(vm, pages_2m);
+	stats->pages_1g = vm_get_stat(vm, pages_1g);
+	stats->hugepages = stats->pages_2m + stats->pages_1g;
+
+	pr_debug("\nPage stats after %s: 4K: %ld 2M: %ld 1G: %ld huge: %ld\n",
+		 stage, stats->pages_4k, stats->pages_2m, stats->pages_1g,
+		 stats->hugepages);
+}
+
+static void run_vcpu_iteration(struct kvm_vm *vm)
+{
+	int i;
+
+	iteration++;
+	for (i = 0; i < VCPUS; i++) {
+		while (READ_ONCE(vcpu_last_completed_iteration[i]) !=
+		       iteration)
+			;
+	}
+}
+
+static void vcpu_worker(struct memstress_vcpu_args *vcpu_args)
+{
+	struct kvm_vcpu *vcpu = vcpu_args->vcpu;
+	int vcpu_idx = vcpu_args->vcpu_idx;
+
+	while (!READ_ONCE(host_quit)) {
+		int current_iteration = READ_ONCE(iteration);
+
+		vcpu_run(vcpu);
+
+		TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_SYNC);
+
+		vcpu_last_completed_iteration[vcpu_idx] = current_iteration;
+
+		/* Wait for the start of the next iteration to be signaled. */
+		while (current_iteration == READ_ONCE(iteration) &&
+		       READ_ONCE(iteration) >= 0 &&
+		       !READ_ONCE(host_quit))
+			;
+	}
+}
+
+static void run_test(enum vm_guest_mode mode, void *unused)
+{
+	struct kvm_vm *vm;
+	unsigned long **bitmaps;
+	uint64_t guest_num_pages;
+	uint64_t host_num_pages;
+	uint64_t pages_per_slot;
+	int i;
+	struct kvm_page_stats stats_populated;
+	struct kvm_page_stats stats_dirty_logging_enabled;
+	struct kvm_page_stats stats_dirty_pass[ITERATIONS];
+	struct kvm_page_stats stats_clear_pass[ITERATIONS];
+	struct kvm_page_stats stats_dirty_logging_disabled;
+	struct kvm_page_stats stats_repopulated;
+
+	vm = memstress_create_vm(mode, VCPUS, guest_percpu_mem_size,
+				 SLOTS, backing_src, false);
+
+	guest_num_pages = (VCPUS * guest_percpu_mem_size) >> vm->page_shift;
+	guest_num_pages = vm_adjust_num_guest_pages(mode, guest_num_pages);
+	host_num_pages = vm_num_host_pages(mode, guest_num_pages);
+	pages_per_slot = host_num_pages / SLOTS;
+	TEST_ASSERT_EQ(host_num_pages, pages_per_slot * SLOTS);
+	TEST_ASSERT(!(host_num_pages % 512),
+		    "Number of pages, '%lu' not a multiple of 2MiB", host_num_pages);
+
+	bitmaps = memstress_alloc_bitmaps(SLOTS, pages_per_slot);
+
+	if (dirty_log_manual_caps)
+		vm_enable_cap(vm, KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2,
+			      dirty_log_manual_caps);
+
+	/* Start the iterations */
+	iteration = -1;
+	host_quit = false;
+
+	for (i = 0; i < VCPUS; i++)
+		vcpu_last_completed_iteration[i] = -1;
+
+	memstress_start_vcpu_threads(VCPUS, vcpu_worker);
+
+	run_vcpu_iteration(vm);
+	get_page_stats(vm, &stats_populated, "populating memory");
+
+	/* Enable dirty logging */
+	memstress_enable_dirty_logging(vm, SLOTS);
+
+	get_page_stats(vm, &stats_dirty_logging_enabled, "enabling dirty logging");
+
+	while (iteration < ITERATIONS) {
+		run_vcpu_iteration(vm);
+		get_page_stats(vm, &stats_dirty_pass[iteration - 1],
+			       "dirtying memory");
+
+		memstress_get_dirty_log(vm, bitmaps, SLOTS);
+
+		if (dirty_log_manual_caps) {
+			memstress_clear_dirty_log(vm, bitmaps, SLOTS, pages_per_slot);
+
+			get_page_stats(vm, &stats_clear_pass[iteration - 1], "clearing dirty log");
+		}
+	}
+
+	/* Disable dirty logging */
+	memstress_disable_dirty_logging(vm, SLOTS);
+
+	get_page_stats(vm, &stats_dirty_logging_disabled, "disabling dirty logging");
+
+	/* Run vCPUs again to fault pages back in. */
+	run_vcpu_iteration(vm);
+	get_page_stats(vm, &stats_repopulated, "repopulating memory");
+
+	/*
+	 * Tell the vCPU threads to quit.  No need to manually check that vCPUs
+	 * have stopped running after disabling dirty logging, the join will
+	 * wait for them to exit.
+	 */
+	host_quit = true;
+	memstress_join_vcpu_threads(VCPUS);
+
+	memstress_free_bitmaps(bitmaps, SLOTS);
+	memstress_destroy_vm(vm);
+
+	TEST_ASSERT_EQ((stats_populated.pages_2m * 512 +
+			stats_populated.pages_1g * 512 * 512), host_num_pages);
+
+	/*
+	 * Check that all huge pages were split. Since large pages can only
+	 * exist in the data slot, and the vCPUs should have dirtied all pages
+	 * in the data slot, there should be no huge pages left after splitting.
+	 * Splitting happens at dirty log enable time without
+	 * KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 and after the first clear pass
+	 * with that capability.
+	 */
+	if (dirty_log_manual_caps) {
+		TEST_ASSERT_EQ(stats_clear_pass[0].hugepages, 0);
+		TEST_ASSERT(stats_clear_pass[0].pages_4k >= host_num_pages,
+			    "Expected at least '%lu' 4KiB pages, found only '%lu'",
+			    host_num_pages, stats_clear_pass[0].pages_4k);
+		TEST_ASSERT_EQ(stats_dirty_logging_enabled.hugepages, stats_populated.hugepages);
+	} else {
+		TEST_ASSERT_EQ(stats_dirty_logging_enabled.hugepages, 0);
+		TEST_ASSERT(stats_dirty_logging_enabled.pages_4k >= host_num_pages,
+			    "Expected at least '%lu' 4KiB pages, found only '%lu'",
+			    host_num_pages, stats_dirty_logging_enabled.pages_4k);
+	}
+
+	/*
+	 * Once dirty logging is disabled and the vCPUs have touched all their
+	 * memory again, the hugepage counts should be the same as they were
+	 * right after initial population of memory.
+	 */
+	TEST_ASSERT_EQ(stats_populated.pages_2m, stats_repopulated.pages_2m);
+	TEST_ASSERT_EQ(stats_populated.pages_1g, stats_repopulated.pages_1g);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-b vcpu bytes] [-s mem type]\n",
+	       name);
+	puts("");
+	printf(" -b: specify the size of the memory region which should be\n"
+	       "     dirtied by each vCPU. e.g. 10M or 3G.\n"
+	       "     (default: 1G)\n");
+	backing_src_help("-s");
+	puts("");
+}
+
+int main(int argc, char *argv[])
+{
+	int opt;
+
+	TEST_REQUIRE(get_kvm_param_bool("eager_page_split"));
+	TEST_REQUIRE(get_kvm_param_bool("tdp_mmu"));
+
+	while ((opt = getopt(argc, argv, "b:hs:")) != -1) {
+		switch (opt) {
+		case 'b':
+			guest_percpu_mem_size = parse_size(optarg);
+			break;
+		case 'h':
+			help(argv[0]);
+			exit(0);
+		case 's':
+			backing_src = parse_backing_src_type(optarg);
+			break;
+		default:
+			help(argv[0]);
+			exit(1);
+		}
+	}
+
+	if (!is_backing_src_hugetlb(backing_src)) {
+		pr_info("This test will only work reliably with HugeTLB memory. "
+			"It can work with THP, but that is best effort.\n");
+	}
+
+	guest_modes_append_default();
+
+	dirty_log_manual_caps = 0;
+	for_each_guest_mode(run_test, NULL);
+
+	dirty_log_manual_caps =
+		kvm_check_cap(KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2);
+
+	if (dirty_log_manual_caps) {
+		dirty_log_manual_caps &= (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE |
+					  KVM_DIRTY_LOG_INITIALLY_SET);
+		for_each_guest_mode(run_test, NULL);
+	} else {
+		pr_info("Skipping testing with MANUAL_PROTECT as it is not supported");
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/exit_on_emulation_failure_test.c b/tools/testing/selftests/kvm/x86/exit_on_emulation_failure_test.c
new file mode 100644
index 000000000000..81055476d394
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/exit_on_emulation_failure_test.c
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022, Google LLC.
+ *
+ * Test for KVM_CAP_EXIT_ON_EMULATION_FAILURE.
+ */
+#include "flds_emulation.h"
+#include "test_util.h"
+#include "ucall_common.h"
+
+#define MMIO_GPA	0x700000000
+#define MMIO_GVA	MMIO_GPA
+
+static void guest_code(void)
+{
+	/* Execute flds with an MMIO address to force KVM to emulate it. */
+	flds(MMIO_GVA);
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_EXIT_ON_EMULATION_FAILURE));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vm_enable_cap(vm, KVM_CAP_EXIT_ON_EMULATION_FAILURE, 1);
+	virt_map(vm, MMIO_GVA, MMIO_GPA, 1);
+
+	vcpu_run(vcpu);
+	handle_flds_emulation_failure_exit(vcpu);
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/fastops_test.c b/tools/testing/selftests/kvm/x86/fastops_test.c
new file mode 100644
index 000000000000..8926cfe0e209
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/fastops_test.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+/*
+ * Execute a fastop() instruction, with or without forced emulation.  BT bit 0
+ * to set RFLAGS.CF based on whether or not the input is even or odd, so that
+ * instructions like ADC and SBB are deterministic.
+ */
+#define fastop(__insn)									\
+	"bt $0, %[bt_val]\n\t"								\
+	__insn "\n\t"									\
+	"pushfq\n\t"									\
+	"pop %[flags]\n\t"
+
+#define flags_constraint(flags_val) [flags]"=r"(flags_val)
+#define bt_constraint(__bt_val) [bt_val]"rm"((uint32_t)__bt_val)
+
+#define guest_execute_fastop_1(FEP, insn, __val, __flags)				\
+({											\
+	__asm__ __volatile__(fastop(FEP insn " %[val]")					\
+			     : [val]"+r"(__val), flags_constraint(__flags)		\
+			     : bt_constraint(__val)					\
+			     : "cc", "memory");						\
+})
+
+#define guest_test_fastop_1(insn, type_t, __val)					\
+({											\
+	type_t val = __val, ex_val = __val, input = __val;				\
+	uint64_t flags, ex_flags;							\
+											\
+	guest_execute_fastop_1("", insn, ex_val, ex_flags);				\
+	guest_execute_fastop_1(KVM_FEP, insn, val, flags);				\
+											\
+	__GUEST_ASSERT(val == ex_val,							\
+		       "Wanted 0x%lx for '%s 0x%lx', got 0x%lx",			\
+		       (uint64_t)ex_val, insn, (uint64_t)input, (uint64_t)val);		\
+	__GUEST_ASSERT(flags == ex_flags,						\
+			"Wanted flags 0x%lx for '%s 0x%lx', got 0x%lx",			\
+			ex_flags, insn, (uint64_t)input, flags);			\
+})
+
+#define guest_execute_fastop_2(FEP, insn, __input, __output, __flags)			\
+({											\
+	__asm__ __volatile__(fastop(FEP insn " %[input], %[output]")			\
+			     : [output]"+r"(__output), flags_constraint(__flags)	\
+			     : [input]"r"(__input), bt_constraint(__output)		\
+			     : "cc", "memory");						\
+})
+
+#define guest_test_fastop_2(insn, type_t, __val1, __val2)				\
+({											\
+	type_t input = __val1, input2 = __val2, output = __val2, ex_output = __val2;	\
+	uint64_t flags, ex_flags;							\
+											\
+	guest_execute_fastop_2("", insn, input, ex_output, ex_flags);			\
+	guest_execute_fastop_2(KVM_FEP, insn, input, output, flags);			\
+											\
+	__GUEST_ASSERT(output == ex_output,						\
+		       "Wanted 0x%lx for '%s 0x%lx 0x%lx', got 0x%lx",			\
+		       (uint64_t)ex_output, insn, (uint64_t)input,			\
+		       (uint64_t)input2, (uint64_t)output);				\
+	__GUEST_ASSERT(flags == ex_flags,						\
+			"Wanted flags 0x%lx for '%s 0x%lx, 0x%lx', got 0x%lx",		\
+			ex_flags, insn, (uint64_t)input, (uint64_t)input2, flags);	\
+})
+
+#define guest_execute_fastop_cl(FEP, insn, __shift, __output, __flags)			\
+({											\
+	__asm__ __volatile__(fastop(FEP insn " %%cl, %[output]")			\
+			     : [output]"+r"(__output), flags_constraint(__flags)	\
+			     : "c"(__shift), bt_constraint(__output)			\
+			     : "cc", "memory");						\
+})
+
+#define guest_test_fastop_cl(insn, type_t, __val1, __val2)				\
+({											\
+	type_t output = __val2, ex_output = __val2, input = __val2;			\
+	uint8_t shift = __val1;								\
+	uint64_t flags, ex_flags;							\
+											\
+	guest_execute_fastop_cl("", insn, shift, ex_output, ex_flags);			\
+	guest_execute_fastop_cl(KVM_FEP, insn, shift, output, flags);			\
+											\
+	__GUEST_ASSERT(output == ex_output,						\
+		       "Wanted 0x%lx for '%s 0x%x, 0x%lx', got 0x%lx",			\
+		       (uint64_t)ex_output, insn, shift, (uint64_t)input,		\
+		       (uint64_t)output);						\
+	__GUEST_ASSERT(flags == ex_flags,						\
+			"Wanted flags 0x%lx for '%s 0x%x, 0x%lx', got 0x%lx",		\
+			ex_flags, insn, shift, (uint64_t)input, flags);			\
+})
+
+#define guest_execute_fastop_div(__KVM_ASM_SAFE, insn, __a, __d, __rm, __flags)		\
+({											\
+	uint64_t ign_error_code;							\
+	uint8_t vector;									\
+											\
+	__asm__ __volatile__(fastop(__KVM_ASM_SAFE(insn " %[denom]"))			\
+			     : "+a"(__a), "+d"(__d), flags_constraint(__flags),		\
+			       KVM_ASM_SAFE_OUTPUTS(vector, ign_error_code)		\
+			     : [denom]"rm"(__rm), bt_constraint(__rm)			\
+			     : "cc", "memory", KVM_ASM_SAFE_CLOBBERS);			\
+	vector;										\
+})
+
+#define guest_test_fastop_div(insn, type_t, __val1, __val2)				\
+({											\
+	type_t _a = __val1, _d = __val1, rm = __val2;					\
+	type_t a = _a, d = _d, ex_a = _a, ex_d = _d;					\
+	uint64_t flags, ex_flags;							\
+	uint8_t v, ex_v;								\
+											\
+	ex_v = guest_execute_fastop_div(KVM_ASM_SAFE, insn, ex_a, ex_d, rm, ex_flags);	\
+	v = guest_execute_fastop_div(KVM_ASM_SAFE_FEP, insn, a, d, rm, flags);		\
+											\
+	GUEST_ASSERT_EQ(v, ex_v);							\
+	__GUEST_ASSERT(v == ex_v,							\
+		       "Wanted vector 0x%x for '%s 0x%lx:0x%lx/0x%lx', got 0x%x",	\
+		       ex_v, insn, (uint64_t)_a, (uint64_t)_d, (uint64_t)rm, v);	\
+	__GUEST_ASSERT(a == ex_a && d == ex_d,						\
+		       "Wanted 0x%lx:0x%lx for '%s 0x%lx:0x%lx/0x%lx', got 0x%lx:0x%lx",\
+		       (uint64_t)ex_a, (uint64_t)ex_d, insn, (uint64_t)_a,		\
+		       (uint64_t)_d, (uint64_t)rm, (uint64_t)a, (uint64_t)d);		\
+	__GUEST_ASSERT(v || ex_v || (flags == ex_flags),				\
+			"Wanted flags 0x%lx for '%s  0x%lx:0x%lx/0x%lx', got 0x%lx",	\
+			ex_flags, insn, (uint64_t)_a, (uint64_t)_d, (uint64_t)rm, flags);\
+})
+
+static const uint64_t vals[] = {
+	0,
+	1,
+	2,
+	4,
+	7,
+	0x5555555555555555,
+	0xaaaaaaaaaaaaaaaa,
+	0xfefefefefefefefe,
+	0xffffffffffffffff,
+};
+
+#define guest_test_fastops(type_t, suffix)						\
+do {											\
+	int i, j;									\
+											\
+	for (i = 0; i < ARRAY_SIZE(vals); i++) {					\
+		guest_test_fastop_1("dec" suffix, type_t, vals[i]);			\
+		guest_test_fastop_1("inc" suffix, type_t, vals[i]);			\
+		guest_test_fastop_1("neg" suffix, type_t, vals[i]);			\
+		guest_test_fastop_1("not" suffix, type_t, vals[i]);			\
+											\
+		for (j = 0; j < ARRAY_SIZE(vals); j++) {				\
+			guest_test_fastop_2("add" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("adc" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("and" suffix, type_t, vals[i], vals[j]);	\
+if (sizeof(type_t) != 1) {							\
+			guest_test_fastop_2("bsf" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("bsr" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("bt" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("btc" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("btr" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("bts" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("imul" suffix, type_t, vals[i], vals[j]);	\
+}											\
+			guest_test_fastop_2("cmp" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("or" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("sbb" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("sub" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("test" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_2("xor" suffix, type_t, vals[i], vals[j]);	\
+											\
+			guest_test_fastop_cl("rol" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("ror" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("rcl" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("rcr" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("sar" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("shl" suffix, type_t, vals[i], vals[j]);	\
+			guest_test_fastop_cl("shr" suffix, type_t, vals[i], vals[j]);	\
+											\
+			guest_test_fastop_div("div" suffix, type_t, vals[i], vals[j]);	\
+		}									\
+	}										\
+} while (0)
+
+static void guest_code(void)
+{
+	guest_test_fastops(uint8_t, "b");
+	guest_test_fastops(uint16_t, "w");
+	guest_test_fastops(uint32_t, "l");
+	guest_test_fastops(uint64_t, "q");
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(is_forced_emulation_enabled);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/feature_msrs_test.c b/tools/testing/selftests/kvm/x86/feature_msrs_test.c
new file mode 100644
index 000000000000..a72f13ae2edb
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/feature_msrs_test.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+static bool is_kvm_controlled_msr(uint32_t msr)
+{
+	return msr == MSR_IA32_VMX_CR0_FIXED1 || msr == MSR_IA32_VMX_CR4_FIXED1;
+}
+
+/*
+ * For VMX MSRs with a "true" variant, KVM requires userspace to set the "true"
+ * MSR, and doesn't allow setting the hidden version.
+ */
+static bool is_hidden_vmx_msr(uint32_t msr)
+{
+	switch (msr) {
+	case MSR_IA32_VMX_PINBASED_CTLS:
+	case MSR_IA32_VMX_PROCBASED_CTLS:
+	case MSR_IA32_VMX_EXIT_CTLS:
+	case MSR_IA32_VMX_ENTRY_CTLS:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool is_quirked_msr(uint32_t msr)
+{
+	return msr != MSR_AMD64_DE_CFG;
+}
+
+static void test_feature_msr(uint32_t msr)
+{
+	const uint64_t supported_mask = kvm_get_feature_msr(msr);
+	uint64_t reset_value = is_quirked_msr(msr) ? supported_mask : 0;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	/*
+	 * Don't bother testing KVM-controlled MSRs beyond verifying that the
+	 * MSR can be read from userspace.  Any value is effectively legal, as
+	 * KVM is bound by x86 architecture, not by ABI.
+	 */
+	if (is_kvm_controlled_msr(msr))
+		return;
+
+	/*
+	 * More goofy behavior.  KVM reports the host CPU's actual revision ID,
+	 * but initializes the vCPU's revision ID to an arbitrary value.
+	 */
+	if (msr == MSR_IA32_UCODE_REV)
+		reset_value = host_cpu_is_intel ? 0x100000000ULL : 0x01000065;
+
+	/*
+	 * For quirked MSRs, KVM's ABI is to initialize the vCPU's value to the
+	 * full set of features supported by KVM.  For non-quirked MSRs, and
+	 * when the quirk is disabled, KVM must zero-initialize the MSR and let
+	 * userspace do the configuration.
+	 */
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+	TEST_ASSERT(vcpu_get_msr(vcpu, msr) == reset_value,
+		    "Wanted 0x%lx for %squirked MSR 0x%x, got 0x%lx",
+		    reset_value, is_quirked_msr(msr) ? "" : "non-", msr,
+		    vcpu_get_msr(vcpu, msr));
+	if (!is_hidden_vmx_msr(msr))
+		vcpu_set_msr(vcpu, msr, supported_mask);
+	kvm_vm_free(vm);
+
+	if (is_hidden_vmx_msr(msr))
+		return;
+
+	if (!kvm_has_cap(KVM_CAP_DISABLE_QUIRKS2) ||
+	    !(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) & KVM_X86_QUIRK_STUFF_FEATURE_MSRS))
+		return;
+
+	vm = vm_create(1);
+	vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, KVM_X86_QUIRK_STUFF_FEATURE_MSRS);
+
+	vcpu = vm_vcpu_add(vm, 0, NULL);
+	TEST_ASSERT(!vcpu_get_msr(vcpu, msr),
+		    "Quirk disabled, wanted '0' for MSR 0x%x, got 0x%lx",
+		    msr, vcpu_get_msr(vcpu, msr));
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	const struct kvm_msr_list *feature_list;
+	int i;
+
+	/*
+	 * Skip the entire test if MSR_FEATURES isn't supported, other tests
+	 * will cover the "regular" list of MSRs, the coverage here is purely
+	 * opportunistic and not interesting on its own.
+	 */
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_GET_MSR_FEATURES));
+
+	(void)kvm_get_msr_index_list();
+
+	feature_list = kvm_get_feature_msr_index_list();
+	for (i = 0; i < feature_list->nmsrs; i++)
+		test_feature_msr(feature_list->indices[i]);
+}
diff --git a/tools/testing/selftests/kvm/x86/fix_hypercall_test.c b/tools/testing/selftests/kvm/x86/fix_hypercall_test.c
new file mode 100644
index 000000000000..762628f7d4ba
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/fix_hypercall_test.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020, Google LLC.
+ *
+ * Tests for KVM paravirtual feature disablement
+ */
+#include <asm/kvm_para.h>
+#include <linux/kvm_para.h>
+#include <linux/stringify.h>
+#include <stdint.h>
+
+#include "kvm_test_harness.h"
+#include "apic.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+/* VMCALL and VMMCALL are both 3-byte opcodes. */
+#define HYPERCALL_INSN_SIZE	3
+
+static bool quirk_disabled;
+
+static void guest_ud_handler(struct ex_regs *regs)
+{
+	regs->rax = -EFAULT;
+	regs->rip += HYPERCALL_INSN_SIZE;
+}
+
+static const uint8_t vmx_vmcall[HYPERCALL_INSN_SIZE]  = { 0x0f, 0x01, 0xc1 };
+static const uint8_t svm_vmmcall[HYPERCALL_INSN_SIZE] = { 0x0f, 0x01, 0xd9 };
+
+extern uint8_t hypercall_insn[HYPERCALL_INSN_SIZE];
+static uint64_t do_sched_yield(uint8_t apic_id)
+{
+	uint64_t ret;
+
+	asm volatile("hypercall_insn:\n\t"
+		     ".byte 0xcc,0xcc,0xcc\n\t"
+		     : "=a"(ret)
+		     : "a"((uint64_t)KVM_HC_SCHED_YIELD), "b"((uint64_t)apic_id)
+		     : "memory");
+
+	return ret;
+}
+
+static void guest_main(void)
+{
+	const uint8_t *native_hypercall_insn;
+	const uint8_t *other_hypercall_insn;
+	uint64_t ret;
+
+	if (host_cpu_is_intel) {
+		native_hypercall_insn = vmx_vmcall;
+		other_hypercall_insn  = svm_vmmcall;
+	} else if (host_cpu_is_amd) {
+		native_hypercall_insn = svm_vmmcall;
+		other_hypercall_insn  = vmx_vmcall;
+	} else {
+		GUEST_ASSERT(0);
+		/* unreachable */
+		return;
+	}
+
+	memcpy(hypercall_insn, other_hypercall_insn, HYPERCALL_INSN_SIZE);
+
+	ret = do_sched_yield(GET_APIC_ID_FIELD(xapic_read_reg(APIC_ID)));
+
+	/*
+	 * If the quirk is disabled, verify that guest_ud_handler() "returned"
+	 * -EFAULT and that KVM did NOT patch the hypercall.  If the quirk is
+	 * enabled, verify that the hypercall succeeded and that KVM patched in
+	 * the "right" hypercall.
+	 */
+	if (quirk_disabled) {
+		GUEST_ASSERT(ret == (uint64_t)-EFAULT);
+		GUEST_ASSERT(!memcmp(other_hypercall_insn, hypercall_insn,
+			     HYPERCALL_INSN_SIZE));
+	} else {
+		GUEST_ASSERT(!ret);
+		GUEST_ASSERT(!memcmp(native_hypercall_insn, hypercall_insn,
+			     HYPERCALL_INSN_SIZE));
+	}
+
+	GUEST_DONE();
+}
+
+KVM_ONE_VCPU_TEST_SUITE(fix_hypercall);
+
+static void enter_guest(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+		pr_info("%s: %016lx\n", (const char *)uc.args[2], uc.args[3]);
+		break;
+	case UCALL_DONE:
+		return;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_FAIL("Unhandled ucall: %ld\nexit_reason: %u (%s)",
+			  uc.cmd, run->exit_reason, exit_reason_str(run->exit_reason));
+	}
+}
+
+static void test_fix_hypercall(struct kvm_vcpu *vcpu, bool disable_quirk)
+{
+	struct kvm_vm *vm = vcpu->vm;
+
+	vm_install_exception_handler(vcpu->vm, UD_VECTOR, guest_ud_handler);
+
+	if (disable_quirk)
+		vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2,
+			      KVM_X86_QUIRK_FIX_HYPERCALL_INSN);
+
+	quirk_disabled = disable_quirk;
+	sync_global_to_guest(vm, quirk_disabled);
+
+	virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
+
+	enter_guest(vcpu);
+}
+
+KVM_ONE_VCPU_TEST(fix_hypercall, enable_quirk, guest_main)
+{
+	test_fix_hypercall(vcpu, false);
+}
+
+KVM_ONE_VCPU_TEST(fix_hypercall, disable_quirk, guest_main)
+{
+	test_fix_hypercall(vcpu, true);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_DISABLE_QUIRKS2) & KVM_X86_QUIRK_FIX_HYPERCALL_INSN);
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/kvm/x86/flds_emulation.h b/tools/testing/selftests/kvm/x86/flds_emulation.h
new file mode 100644
index 000000000000..37b1a9f52864
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/flds_emulation.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_KVM_FLDS_EMULATION_H
+#define SELFTEST_KVM_FLDS_EMULATION_H
+
+#include "kvm_util.h"
+
+#define FLDS_MEM_EAX ".byte 0xd9, 0x00"
+
+/*
+ * flds is an instruction that the KVM instruction emulator is known not to
+ * support. This can be used in guest code along with a mechanism to force
+ * KVM to emulate the instruction (e.g. by providing an MMIO address) to
+ * exercise emulation failures.
+ */
+static inline void flds(uint64_t address)
+{
+	__asm__ __volatile__(FLDS_MEM_EAX :: "a"(address));
+}
+
+static inline void handle_flds_emulation_failure_exit(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_regs regs;
+	uint8_t *insn_bytes;
+	uint64_t flags;
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_INTERNAL_ERROR);
+
+	TEST_ASSERT(run->emulation_failure.suberror == KVM_INTERNAL_ERROR_EMULATION,
+		    "Unexpected suberror: %u",
+		    run->emulation_failure.suberror);
+
+	flags = run->emulation_failure.flags;
+	TEST_ASSERT(run->emulation_failure.ndata >= 3 &&
+		    flags & KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES,
+		    "run->emulation_failure is missing instruction bytes");
+
+	TEST_ASSERT(run->emulation_failure.insn_size >= 2,
+		    "Expected a 2-byte opcode for 'flds', got %d bytes",
+		    run->emulation_failure.insn_size);
+
+	insn_bytes = run->emulation_failure.insn_bytes;
+	TEST_ASSERT(insn_bytes[0] == 0xd9 && insn_bytes[1] == 0,
+		    "Expected 'flds [eax]', opcode '0xd9 0x00', got opcode 0x%02x 0x%02x",
+		    insn_bytes[0], insn_bytes[1]);
+
+	vcpu_regs_get(vcpu, &regs);
+	regs.rip += 2;
+	vcpu_regs_set(vcpu, &regs);
+}
+
+#endif /* !SELFTEST_KVM_FLDS_EMULATION_H */
diff --git a/tools/testing/selftests/kvm/x86/hwcr_msr_test.c b/tools/testing/selftests/kvm/x86/hwcr_msr_test.c
new file mode 100644
index 000000000000..10b1b0ba374e
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hwcr_msr_test.c
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023, Google LLC.
+ */
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "vmx.h"
+
+void test_hwcr_bit(struct kvm_vcpu *vcpu, unsigned int bit)
+{
+	const uint64_t ignored = BIT_ULL(3) | BIT_ULL(6) | BIT_ULL(8);
+	const uint64_t valid = BIT_ULL(18) | BIT_ULL(24);
+	const uint64_t legal = ignored | valid;
+	uint64_t val = BIT_ULL(bit);
+	uint64_t actual;
+	int r;
+
+	r = _vcpu_set_msr(vcpu, MSR_K7_HWCR, val);
+	TEST_ASSERT(val & ~legal ? !r : r == 1,
+		    "Expected KVM_SET_MSRS(MSR_K7_HWCR) = 0x%lx to %s",
+		    val, val & ~legal ? "fail" : "succeed");
+
+	actual = vcpu_get_msr(vcpu, MSR_K7_HWCR);
+	TEST_ASSERT(actual == (val & valid),
+		    "Bit %u: unexpected HWCR 0x%lx; expected 0x%lx",
+		    bit, actual, (val & valid));
+
+	vcpu_set_msr(vcpu, MSR_K7_HWCR, 0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	unsigned int bit;
+
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+
+	for (bit = 0; bit < BITS_PER_LONG; bit++)
+		test_hwcr_bit(vcpu, bit);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_clock.c b/tools/testing/selftests/kvm/x86/hyperv_clock.c
new file mode 100644
index 000000000000..e058bc676cd6
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_clock.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Red Hat, Inc.
+ *
+ * Tests for Hyper-V clocksources
+ */
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "hyperv.h"
+
+struct ms_hyperv_tsc_page {
+	volatile u32 tsc_sequence;
+	u32 reserved1;
+	volatile u64 tsc_scale;
+	volatile s64 tsc_offset;
+} __packed;
+
+/* Simplified mul_u64_u64_shr() */
+static inline u64 mul_u64_u64_shr64(u64 a, u64 b)
+{
+	union {
+		u64 ll;
+		struct {
+			u32 low, high;
+		} l;
+	} rm, rn, rh, a0, b0;
+	u64 c;
+
+	a0.ll = a;
+	b0.ll = b;
+
+	rm.ll = (u64)a0.l.low * b0.l.high;
+	rn.ll = (u64)a0.l.high * b0.l.low;
+	rh.ll = (u64)a0.l.high * b0.l.high;
+
+	rh.l.low = c = rm.l.high + rn.l.high + rh.l.low;
+	rh.l.high = (c >> 32) + rh.l.high;
+
+	return rh.ll;
+}
+
+static inline void nop_loop(void)
+{
+	int i;
+
+	for (i = 0; i < 100000000; i++)
+		asm volatile("nop");
+}
+
+static inline void check_tsc_msr_rdtsc(void)
+{
+	u64 tsc_freq, r1, r2, t1, t2;
+	s64 delta_ns;
+
+	tsc_freq = rdmsr(HV_X64_MSR_TSC_FREQUENCY);
+	GUEST_ASSERT(tsc_freq > 0);
+
+	/* For increased accuracy, take mean rdtsc() before and afrer rdmsr() */
+	r1 = rdtsc();
+	t1 = rdmsr(HV_X64_MSR_TIME_REF_COUNT);
+	r1 = (r1 + rdtsc()) / 2;
+	nop_loop();
+	r2 = rdtsc();
+	t2 = rdmsr(HV_X64_MSR_TIME_REF_COUNT);
+	r2 = (r2 + rdtsc()) / 2;
+
+	GUEST_ASSERT(r2 > r1 && t2 > t1);
+
+	/* HV_X64_MSR_TIME_REF_COUNT is in 100ns */
+	delta_ns = ((t2 - t1) * 100) - ((r2 - r1) * 1000000000 / tsc_freq);
+	if (delta_ns < 0)
+		delta_ns = -delta_ns;
+
+	/* 1% tolerance */
+	GUEST_ASSERT(delta_ns * 100 < (t2 - t1) * 100);
+}
+
+static inline u64 get_tscpage_ts(struct ms_hyperv_tsc_page *tsc_page)
+{
+	return mul_u64_u64_shr64(rdtsc(), tsc_page->tsc_scale) + tsc_page->tsc_offset;
+}
+
+static inline void check_tsc_msr_tsc_page(struct ms_hyperv_tsc_page *tsc_page)
+{
+	u64 r1, r2, t1, t2;
+
+	/* Compare TSC page clocksource with HV_X64_MSR_TIME_REF_COUNT */
+	t1 = get_tscpage_ts(tsc_page);
+	r1 = rdmsr(HV_X64_MSR_TIME_REF_COUNT);
+
+	/* 10 ms tolerance */
+	GUEST_ASSERT(r1 >= t1 && r1 - t1 < 100000);
+	nop_loop();
+
+	t2 = get_tscpage_ts(tsc_page);
+	r2 = rdmsr(HV_X64_MSR_TIME_REF_COUNT);
+	GUEST_ASSERT(r2 >= t1 && r2 - t2 < 100000);
+}
+
+static void guest_main(struct ms_hyperv_tsc_page *tsc_page, vm_paddr_t tsc_page_gpa)
+{
+	u64 tsc_scale, tsc_offset;
+
+	/* Set Guest OS id to enable Hyper-V emulation */
+	GUEST_SYNC(1);
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	GUEST_SYNC(2);
+
+	check_tsc_msr_rdtsc();
+
+	GUEST_SYNC(3);
+
+	/* Set up TSC page is disabled state, check that it's clean */
+	wrmsr(HV_X64_MSR_REFERENCE_TSC, tsc_page_gpa);
+	GUEST_ASSERT(tsc_page->tsc_sequence == 0);
+	GUEST_ASSERT(tsc_page->tsc_scale == 0);
+	GUEST_ASSERT(tsc_page->tsc_offset == 0);
+
+	GUEST_SYNC(4);
+
+	/* Set up TSC page is enabled state */
+	wrmsr(HV_X64_MSR_REFERENCE_TSC, tsc_page_gpa | 0x1);
+	GUEST_ASSERT(tsc_page->tsc_sequence != 0);
+
+	GUEST_SYNC(5);
+
+	check_tsc_msr_tsc_page(tsc_page);
+
+	GUEST_SYNC(6);
+
+	tsc_offset = tsc_page->tsc_offset;
+	/* Call KVM_SET_CLOCK from userspace, check that TSC page was updated */
+
+	GUEST_SYNC(7);
+	/* Sanity check TSC page timestamp, it should be close to 0 */
+	GUEST_ASSERT(get_tscpage_ts(tsc_page) < 100000);
+
+	GUEST_ASSERT(tsc_page->tsc_offset != tsc_offset);
+
+	nop_loop();
+
+	/*
+	 * Enable Re-enlightenment and check that TSC page stays constant across
+	 * KVM_SET_CLOCK.
+	 */
+	wrmsr(HV_X64_MSR_REENLIGHTENMENT_CONTROL, 0x1 << 16 | 0xff);
+	wrmsr(HV_X64_MSR_TSC_EMULATION_CONTROL, 0x1);
+	tsc_offset = tsc_page->tsc_offset;
+	tsc_scale = tsc_page->tsc_scale;
+	GUEST_SYNC(8);
+	GUEST_ASSERT(tsc_page->tsc_offset == tsc_offset);
+	GUEST_ASSERT(tsc_page->tsc_scale == tsc_scale);
+
+	GUEST_SYNC(9);
+
+	check_tsc_msr_tsc_page(tsc_page);
+
+	/*
+	 * Disable re-enlightenment and TSC page, check that KVM doesn't update
+	 * it anymore.
+	 */
+	wrmsr(HV_X64_MSR_REENLIGHTENMENT_CONTROL, 0);
+	wrmsr(HV_X64_MSR_TSC_EMULATION_CONTROL, 0);
+	wrmsr(HV_X64_MSR_REFERENCE_TSC, 0);
+	memset(tsc_page, 0, sizeof(*tsc_page));
+
+	GUEST_SYNC(10);
+	GUEST_ASSERT(tsc_page->tsc_sequence == 0);
+	GUEST_ASSERT(tsc_page->tsc_offset == 0);
+	GUEST_ASSERT(tsc_page->tsc_scale == 0);
+
+	GUEST_DONE();
+}
+
+static void host_check_tsc_msr_rdtsc(struct kvm_vcpu *vcpu)
+{
+	u64 tsc_freq, r1, r2, t1, t2;
+	s64 delta_ns;
+
+	tsc_freq = vcpu_get_msr(vcpu, HV_X64_MSR_TSC_FREQUENCY);
+	TEST_ASSERT(tsc_freq > 0, "TSC frequency must be nonzero");
+
+	/* For increased accuracy, take mean rdtsc() before and afrer ioctl */
+	r1 = rdtsc();
+	t1 = vcpu_get_msr(vcpu, HV_X64_MSR_TIME_REF_COUNT);
+	r1 = (r1 + rdtsc()) / 2;
+	nop_loop();
+	r2 = rdtsc();
+	t2 = vcpu_get_msr(vcpu, HV_X64_MSR_TIME_REF_COUNT);
+	r2 = (r2 + rdtsc()) / 2;
+
+	TEST_ASSERT(t2 > t1, "Time reference MSR is not monotonic (%ld <= %ld)", t1, t2);
+
+	/* HV_X64_MSR_TIME_REF_COUNT is in 100ns */
+	delta_ns = ((t2 - t1) * 100) - ((r2 - r1) * 1000000000 / tsc_freq);
+	if (delta_ns < 0)
+		delta_ns = -delta_ns;
+
+	/* 1% tolerance */
+	TEST_ASSERT(delta_ns * 100 < (t2 - t1) * 100,
+		    "Elapsed time does not match (MSR=%ld, TSC=%ld)",
+		    (t2 - t1) * 100, (r2 - r1) * 1000000000 / tsc_freq);
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	vm_vaddr_t tsc_page_gva;
+	int stage;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_TIME));
+	TEST_REQUIRE(sys_clocksource_is_based_on_tsc());
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+
+	vcpu_set_hv_cpuid(vcpu);
+
+	tsc_page_gva = vm_vaddr_alloc_page(vm);
+	memset(addr_gva2hva(vm, tsc_page_gva), 0x0, getpagesize());
+	TEST_ASSERT((addr_gva2gpa(vm, tsc_page_gva) & (getpagesize() - 1)) == 0,
+		"TSC page has to be page aligned");
+	vcpu_args_set(vcpu, 2, tsc_page_gva, addr_gva2gpa(vm, tsc_page_gva));
+
+	host_check_tsc_msr_rdtsc(vcpu);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			/* Keep in sync with guest_main() */
+			TEST_ASSERT(stage == 11, "Testing ended prematurely, stage %d",
+				    stage);
+			goto out;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage,
+			    "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage, (ulong)uc.args[1]);
+
+		/* Reset kvmclock triggering TSC page update */
+		if (stage == 7 || stage == 8 || stage == 10) {
+			struct kvm_clock_data clock = {0};
+
+			vm_ioctl(vm, KVM_SET_CLOCK, &clock);
+		}
+	}
+
+out:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_cpuid.c b/tools/testing/selftests/kvm/x86/hyperv_cpuid.c
new file mode 100644
index 000000000000..3c21af811d8f
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_cpuid.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for x86 KVM_CAP_HYPERV_CPUID
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+static void guest_code(void)
+{
+}
+
+static void test_hv_cpuid(struct kvm_vcpu *vcpu, bool evmcs_expected)
+{
+	const bool has_irqchip = !vcpu || vcpu->vm->has_irqchip;
+	const struct kvm_cpuid2 *hv_cpuid_entries;
+	int i;
+	int nent_expected = 10;
+	u32 test_val;
+
+	if (vcpu)
+		hv_cpuid_entries = vcpu_get_supported_hv_cpuid(vcpu);
+	else
+		hv_cpuid_entries = kvm_get_supported_hv_cpuid();
+
+	TEST_ASSERT(hv_cpuid_entries->nent == nent_expected,
+		    "KVM_GET_SUPPORTED_HV_CPUID should return %d entries"
+		    " (returned %d)",
+		    nent_expected, hv_cpuid_entries->nent);
+
+	for (i = 0; i < hv_cpuid_entries->nent; i++) {
+		const struct kvm_cpuid_entry2 *entry = &hv_cpuid_entries->entries[i];
+
+		TEST_ASSERT((entry->function >= 0x40000000) &&
+			    (entry->function <= 0x40000082),
+			    "function %x is out of supported range",
+			    entry->function);
+
+		TEST_ASSERT(entry->index == 0,
+			    ".index field should be zero");
+
+		TEST_ASSERT(entry->flags == 0,
+			    ".flags field should be zero");
+
+		TEST_ASSERT(!entry->padding[0] && !entry->padding[1] &&
+			    !entry->padding[2], "padding should be zero");
+
+		switch (entry->function) {
+		case 0x40000000:
+			test_val = 0x40000082;
+
+			TEST_ASSERT(entry->eax == test_val,
+				    "Wrong max leaf report in 0x40000000.EAX: %x"
+				    " (evmcs=%d)",
+				    entry->eax, evmcs_expected
+				);
+			break;
+		case 0x40000003:
+			TEST_ASSERT(has_irqchip || !(entry->edx & BIT(19)),
+				    "\"Direct\" Synthetic Timers should require in-kernel APIC");
+			break;
+		case 0x40000004:
+			test_val = entry->eax & (1UL << 18);
+
+			TEST_ASSERT(!!test_val == !is_smt_possible(),
+				    "NoNonArchitecturalCoreSharing bit"
+				    " doesn't reflect SMT setting");
+
+			TEST_ASSERT(has_irqchip || !(entry->eax & BIT(10)),
+				    "Cluster IPI (i.e. SEND_IPI) should require in-kernel APIC");
+			break;
+		case 0x4000000A:
+			TEST_ASSERT(entry->eax & (1UL << 19),
+				    "Enlightened MSR-Bitmap should always be supported"
+				    " 0x40000000.EAX: %x", entry->eax);
+			if (evmcs_expected)
+				TEST_ASSERT((entry->eax & 0xffff) == 0x101,
+				    "Supported Enlightened VMCS version range is supposed to be 1:1"
+				    " 0x40000000.EAX: %x", entry->eax);
+
+			break;
+		default:
+			break;
+
+		}
+		/*
+		 * If needed for debug:
+		 * fprintf(stdout,
+		 *	"CPUID%lx EAX=0x%lx EBX=0x%lx ECX=0x%lx EDX=0x%lx\n",
+		 *	entry->function, entry->eax, entry->ebx, entry->ecx,
+		 *	entry->edx);
+		 */
+	}
+
+	/*
+	 * Note, the CPUID array returned by the system-scoped helper is a one-
+	 * time allocation, i.e. must not be freed.
+	 */
+	if (vcpu)
+		free((void *)hv_cpuid_entries);
+}
+
+static void test_hv_cpuid_e2big(struct kvm_vm *vm, struct kvm_vcpu *vcpu)
+{
+	static struct kvm_cpuid2 cpuid = {.nent = 0};
+	int ret;
+
+	if (vcpu)
+		ret = __vcpu_ioctl(vcpu, KVM_GET_SUPPORTED_HV_CPUID, &cpuid);
+	else
+		ret = __kvm_ioctl(vm->kvm_fd, KVM_GET_SUPPORTED_HV_CPUID, &cpuid);
+
+	TEST_ASSERT(ret == -1 && errno == E2BIG,
+		    "%s KVM_GET_SUPPORTED_HV_CPUID didn't fail with -E2BIG when"
+		    " it should have: %d %d", !vcpu ? "KVM" : "vCPU", ret, errno);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_CPUID));
+
+	/* Test the vCPU ioctl without an in-kernel local APIC. */
+	vm = vm_create_barebones();
+	vcpu = __vm_vcpu_add(vm, 0);
+	test_hv_cpuid(vcpu, false);
+	kvm_vm_free(vm);
+
+	/* Test vCPU ioctl version */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	test_hv_cpuid_e2big(vm, vcpu);
+	test_hv_cpuid(vcpu, false);
+
+	if (!kvm_cpu_has(X86_FEATURE_VMX) ||
+	    !kvm_has_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS)) {
+		print_skip("Enlightened VMCS is unsupported");
+		goto do_sys;
+	}
+	vcpu_enable_evmcs(vcpu);
+	test_hv_cpuid(vcpu, true);
+
+do_sys:
+	/* Test system ioctl version */
+	if (!kvm_has_cap(KVM_CAP_SYS_HYPERV_CPUID)) {
+		print_skip("KVM_CAP_SYS_HYPERV_CPUID not supported");
+		goto out;
+	}
+
+	test_hv_cpuid_e2big(vm, NULL);
+	test_hv_cpuid(NULL, kvm_cpu_has(X86_FEATURE_VMX));
+
+out:
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_evmcs.c b/tools/testing/selftests/kvm/x86/hyperv_evmcs.c
new file mode 100644
index 000000000000..74cf19661309
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_evmcs.c
@@ -0,0 +1,307 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018, Red Hat, Inc.
+ *
+ * Tests for Enlightened VMCS, including nested guest state.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <linux/bitmap.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+
+#include "hyperv.h"
+#include "vmx.h"
+
+static int ud_count;
+
+static void guest_ud_handler(struct ex_regs *regs)
+{
+	ud_count++;
+	regs->rip += 3; /* VMLAUNCH */
+}
+
+static void guest_nmi_handler(struct ex_regs *regs)
+{
+}
+
+static inline void rdmsr_from_l2(uint32_t msr)
+{
+	/* Currently, L1 doesn't preserve GPRs during vmexits. */
+	__asm__ __volatile__ ("rdmsr" : : "c"(msr) :
+			      "rax", "rbx", "rdx", "rsi", "rdi", "r8", "r9",
+			      "r10", "r11", "r12", "r13", "r14", "r15");
+}
+
+/* Exit to L1 from L2 with RDMSR instruction */
+void l2_guest_code(void)
+{
+	u64 unused;
+
+	GUEST_SYNC(7);
+
+	GUEST_SYNC(8);
+
+	/* Forced exit to L1 upon restore */
+	GUEST_SYNC(9);
+
+	vmcall();
+
+	/* MSR-Bitmap tests */
+	rdmsr_from_l2(MSR_FS_BASE); /* intercepted */
+	rdmsr_from_l2(MSR_FS_BASE); /* intercepted */
+	rdmsr_from_l2(MSR_GS_BASE); /* not intercepted */
+	vmcall();
+	rdmsr_from_l2(MSR_GS_BASE); /* intercepted */
+
+	/* L2 TLB flush tests */
+	hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE | HV_HYPERCALL_FAST_BIT, 0x0,
+			 HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES | HV_FLUSH_ALL_PROCESSORS);
+	rdmsr_from_l2(MSR_FS_BASE);
+	/*
+	 * Note: hypercall status (RAX) is not preserved correctly by L1 after
+	 * synthetic vmexit, use unchecked version.
+	 */
+	__hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE | HV_HYPERCALL_FAST_BIT, 0x0,
+			   HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES | HV_FLUSH_ALL_PROCESSORS,
+			   &unused);
+
+	/* Done, exit to L1 and never come back.  */
+	vmcall();
+}
+
+void guest_code(struct vmx_pages *vmx_pages, struct hyperv_test_pages *hv_pages,
+		vm_vaddr_t hv_hcall_page_gpa)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, hv_hcall_page_gpa);
+
+	x2apic_enable();
+
+	GUEST_SYNC(1);
+	GUEST_SYNC(2);
+
+	enable_vp_assist(hv_pages->vp_assist_gpa, hv_pages->vp_assist);
+	evmcs_enable();
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_SYNC(3);
+	GUEST_ASSERT(load_evmcs(hv_pages));
+	GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa);
+
+	GUEST_SYNC(4);
+	GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa);
+
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_SYNC(5);
+	GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa);
+	current_evmcs->revision_id = -1u;
+	GUEST_ASSERT(vmlaunch());
+	current_evmcs->revision_id = EVMCS_VERSION;
+	GUEST_SYNC(6);
+
+	vmwrite(PIN_BASED_VM_EXEC_CONTROL, vmreadz(PIN_BASED_VM_EXEC_CONTROL) |
+		PIN_BASED_NMI_EXITING);
+
+	/* L2 TLB flush setup */
+	current_evmcs->partition_assist_page = hv_pages->partition_assist_gpa;
+	current_evmcs->hv_enlightenments_control.nested_flush_hypercall = 1;
+	current_evmcs->hv_vm_id = 1;
+	current_evmcs->hv_vp_id = 1;
+	current_vp_assist->nested_control.features.directhypercall = 1;
+	*(u32 *)(hv_pages->partition_assist) = 0;
+
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT_EQ(vmreadz(VM_EXIT_REASON), EXIT_REASON_EXCEPTION_NMI);
+	GUEST_ASSERT_EQ((vmreadz(VM_EXIT_INTR_INFO) & 0xff), NMI_VECTOR);
+	GUEST_ASSERT(vmptrstz() == hv_pages->enlightened_vmcs_gpa);
+
+	/*
+	 * NMI forces L2->L1 exit, resuming L2 and hope that EVMCS is
+	 * up-to-date (RIP points where it should and not at the beginning
+	 * of l2_guest_code(). GUEST_SYNC(9) checkes that.
+	 */
+	GUEST_ASSERT(!vmresume());
+
+	GUEST_SYNC(10);
+
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	current_evmcs->guest_rip += 3; /* vmcall */
+
+	/* Intercept RDMSR 0xc0000100 */
+	vmwrite(CPU_BASED_VM_EXEC_CONTROL, vmreadz(CPU_BASED_VM_EXEC_CONTROL) |
+		CPU_BASED_USE_MSR_BITMAPS);
+	__set_bit(MSR_FS_BASE & 0x1fff, vmx_pages->msr + 0x400);
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_MSR_READ);
+	current_evmcs->guest_rip += 2; /* rdmsr */
+
+	/* Enable enlightened MSR bitmap */
+	current_evmcs->hv_enlightenments_control.msr_bitmap = 1;
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_MSR_READ);
+	current_evmcs->guest_rip += 2; /* rdmsr */
+
+	/* Intercept RDMSR 0xc0000101 without telling KVM about it */
+	__set_bit(MSR_GS_BASE & 0x1fff, vmx_pages->msr + 0x400);
+	/* Make sure HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP is set */
+	current_evmcs->hv_clean_fields |= HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP;
+	GUEST_ASSERT(!vmresume());
+	/* Make sure we don't see EXIT_REASON_MSR_READ here so eMSR bitmap works */
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	current_evmcs->guest_rip += 3; /* vmcall */
+
+	/* Now tell KVM we've changed MSR-Bitmap */
+	current_evmcs->hv_clean_fields &= ~HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP;
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_MSR_READ);
+	current_evmcs->guest_rip += 2; /* rdmsr */
+
+	/*
+	 * L2 TLB flush test. First VMCALL should be handled directly by L0,
+	 * no VMCALL exit expected.
+	 */
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_MSR_READ);
+	current_evmcs->guest_rip += 2; /* rdmsr */
+	/* Enable synthetic vmexit */
+	*(u32 *)(hv_pages->partition_assist) = 1;
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH);
+
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	GUEST_SYNC(11);
+
+	/* Try enlightened vmptrld with an incorrect GPA */
+	evmcs_vmptrld(0xdeadbeef, hv_pages->enlightened_vmcs);
+	GUEST_ASSERT(vmlaunch());
+	GUEST_ASSERT(ud_count == 1);
+	GUEST_DONE();
+}
+
+void inject_nmi(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_events events;
+
+	vcpu_events_get(vcpu, &events);
+
+	events.nmi.pending = 1;
+	events.flags |= KVM_VCPUEVENT_VALID_NMI_PENDING;
+
+	vcpu_events_set(vcpu, &events);
+}
+
+static struct kvm_vcpu *save_restore_vm(struct kvm_vm *vm,
+					struct kvm_vcpu *vcpu)
+{
+	struct kvm_regs regs1, regs2;
+	struct kvm_x86_state *state;
+
+	state = vcpu_save_state(vcpu);
+	memset(&regs1, 0, sizeof(regs1));
+	vcpu_regs_get(vcpu, &regs1);
+
+	kvm_vm_release(vm);
+
+	/* Restore state in a new VM.  */
+	vcpu = vm_recreate_with_one_vcpu(vm);
+	vcpu_set_hv_cpuid(vcpu);
+	vcpu_enable_evmcs(vcpu);
+	vcpu_load_state(vcpu, state);
+	kvm_x86_state_cleanup(state);
+
+	memset(&regs2, 0, sizeof(regs2));
+	vcpu_regs_get(vcpu, &regs2);
+	TEST_ASSERT(!memcmp(&regs1, &regs2, sizeof(regs2)),
+		    "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx",
+		    (ulong) regs2.rdi, (ulong) regs2.rsi);
+	return vcpu;
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t vmx_pages_gva = 0, hv_pages_gva = 0;
+	vm_vaddr_t hcall_page;
+
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int stage;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS));
+	TEST_REQUIRE(kvm_hv_cpu_has(HV_X64_NESTED_DIRECT_FLUSH));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	hcall_page = vm_vaddr_alloc_pages(vm, 1);
+	memset(addr_gva2hva(vm, hcall_page), 0x0,  getpagesize());
+
+	vcpu_set_hv_cpuid(vcpu);
+	vcpu_enable_evmcs(vcpu);
+
+	vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	vcpu_alloc_hyperv_test_pages(vm, &hv_pages_gva);
+	vcpu_args_set(vcpu, 3, vmx_pages_gva, hv_pages_gva, addr_gva2gpa(vm, hcall_page));
+	vcpu_set_msr(vcpu, HV_X64_MSR_VP_INDEX, vcpu->id);
+
+	vm_install_exception_handler(vm, UD_VECTOR, guest_ud_handler);
+	vm_install_exception_handler(vm, NMI_VECTOR, guest_nmi_handler);
+
+	pr_info("Running L1 which uses EVMCS to run L2\n");
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		/* UCALL_SYNC is handled here.  */
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage, "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage, (ulong)uc.args[1]);
+
+		vcpu = save_restore_vm(vm, vcpu);
+
+		/* Force immediate L2->L1 exit before resuming */
+		if (stage == 8) {
+			pr_info("Injecting NMI into L1 before L2 had a chance to run after restore\n");
+			inject_nmi(vcpu);
+		}
+
+		/*
+		 * Do KVM_GET_NESTED_STATE/KVM_SET_NESTED_STATE for a freshly
+		 * restored VM (before the first KVM_RUN) to check that
+		 * KVM_STATE_NESTED_EVMCS is not lost.
+		 */
+		if (stage == 9) {
+			pr_info("Trying extra KVM_GET_NESTED_STATE/KVM_SET_NESTED_STATE cycle\n");
+			vcpu = save_restore_vm(vm, vcpu);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_extended_hypercalls.c b/tools/testing/selftests/kvm/x86/hyperv_extended_hypercalls.c
new file mode 100644
index 000000000000..949e08e98f31
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_extended_hypercalls.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test Hyper-V extended hypercall, HV_EXT_CALL_QUERY_CAPABILITIES (0x8001),
+ * exit to userspace and receive result in guest.
+ *
+ * Negative tests are present in hyperv_features.c
+ *
+ * Copyright 2022 Google LLC
+ * Author: Vipin Sharma <vipinsh@google.com>
+ */
+#include "kvm_util.h"
+#include "processor.h"
+#include "hyperv.h"
+
+/* Any value is fine */
+#define EXT_CAPABILITIES 0xbull
+
+static void guest_code(vm_paddr_t in_pg_gpa, vm_paddr_t out_pg_gpa,
+		       vm_vaddr_t out_pg_gva)
+{
+	uint64_t *output_gva;
+
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, in_pg_gpa);
+
+	output_gva = (uint64_t *)out_pg_gva;
+
+	hyperv_hypercall(HV_EXT_CALL_QUERY_CAPABILITIES, in_pg_gpa, out_pg_gpa);
+
+	/* TLFS states output will be a uint64_t value */
+	GUEST_ASSERT_EQ(*output_gva, EXT_CAPABILITIES);
+
+	GUEST_DONE();
+}
+
+int main(void)
+{
+	vm_vaddr_t hcall_out_page;
+	vm_vaddr_t hcall_in_page;
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	uint64_t *outval;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_CPUID));
+
+	/* Verify if extended hypercalls are supported */
+	if (!kvm_cpuid_has(kvm_get_supported_hv_cpuid(),
+			   HV_ENABLE_EXTENDED_HYPERCALLS)) {
+		print_skip("Extended calls not supported by the kernel");
+		exit(KSFT_SKIP);
+	}
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	run = vcpu->run;
+	vcpu_set_hv_cpuid(vcpu);
+
+	/* Hypercall input */
+	hcall_in_page = vm_vaddr_alloc_pages(vm, 1);
+	memset(addr_gva2hva(vm, hcall_in_page), 0x0, vm->page_size);
+
+	/* Hypercall output */
+	hcall_out_page = vm_vaddr_alloc_pages(vm, 1);
+	memset(addr_gva2hva(vm, hcall_out_page), 0x0, vm->page_size);
+
+	vcpu_args_set(vcpu, 3, addr_gva2gpa(vm, hcall_in_page),
+		      addr_gva2gpa(vm, hcall_out_page), hcall_out_page);
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_HYPERV,
+		    "Unexpected exit reason: %u (%s)",
+		    run->exit_reason, exit_reason_str(run->exit_reason));
+
+	outval = addr_gpa2hva(vm, run->hyperv.u.hcall.params[1]);
+	*outval = EXT_CAPABILITIES;
+	run->hyperv.u.hcall.result = HV_STATUS_SUCCESS;
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
+		    "Unexpected exit reason: %u (%s)",
+		    run->exit_reason, exit_reason_str(run->exit_reason));
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unhandled ucall: %ld", uc.cmd);
+	}
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_features.c b/tools/testing/selftests/kvm/x86/hyperv_features.c
new file mode 100644
index 000000000000..130b9ce7e5dd
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_features.c
@@ -0,0 +1,695 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Red Hat, Inc.
+ *
+ * Tests for Hyper-V features enablement
+ */
+#include <asm/kvm_para.h>
+#include <linux/kvm_para.h>
+#include <stdint.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "hyperv.h"
+
+/*
+ * HYPERV_CPUID_ENLIGHTMENT_INFO.EBX is not a 'feature' CPUID leaf
+ * but to activate the feature it is sufficient to set it to a non-zero
+ * value. Use BIT(0) for that.
+ */
+#define HV_PV_SPINLOCKS_TEST            \
+	KVM_X86_CPU_FEATURE(HYPERV_CPUID_ENLIGHTMENT_INFO, 0, EBX, 0)
+
+struct msr_data {
+	uint32_t idx;
+	bool fault_expected;
+	bool write;
+	u64 write_val;
+};
+
+struct hcall_data {
+	uint64_t control;
+	uint64_t expect;
+	bool ud_expected;
+};
+
+static bool is_write_only_msr(uint32_t msr)
+{
+	return msr == HV_X64_MSR_EOI;
+}
+
+static void guest_msr(struct msr_data *msr)
+{
+	uint8_t vector = 0;
+	uint64_t msr_val = 0;
+
+	GUEST_ASSERT(msr->idx);
+
+	if (msr->write)
+		vector = wrmsr_safe(msr->idx, msr->write_val);
+
+	if (!vector && (!msr->write || !is_write_only_msr(msr->idx)))
+		vector = rdmsr_safe(msr->idx, &msr_val);
+
+	if (msr->fault_expected)
+		__GUEST_ASSERT(vector == GP_VECTOR,
+			       "Expected #GP on %sMSR(0x%x), got %s",
+			       msr->write ? "WR" : "RD", msr->idx, ex_str(vector));
+	else
+		__GUEST_ASSERT(!vector,
+			       "Expected success on %sMSR(0x%x), got %s",
+			       msr->write ? "WR" : "RD", msr->idx, ex_str(vector));
+
+	if (vector || is_write_only_msr(msr->idx))
+		goto done;
+
+	if (msr->write)
+		__GUEST_ASSERT(!vector,
+			       "WRMSR(0x%x) to '0x%lx', RDMSR read '0x%lx'",
+			       msr->idx, msr->write_val, msr_val);
+
+	/* Invariant TSC bit appears when TSC invariant control MSR is written to */
+	if (msr->idx == HV_X64_MSR_TSC_INVARIANT_CONTROL) {
+		if (!this_cpu_has(HV_ACCESS_TSC_INVARIANT))
+			GUEST_ASSERT(this_cpu_has(X86_FEATURE_INVTSC));
+		else
+			GUEST_ASSERT(this_cpu_has(X86_FEATURE_INVTSC) ==
+				     !!(msr_val & HV_INVARIANT_TSC_EXPOSED));
+	}
+
+done:
+	GUEST_DONE();
+}
+
+static void guest_hcall(vm_vaddr_t pgs_gpa, struct hcall_data *hcall)
+{
+	u64 res, input, output;
+	uint8_t vector;
+
+	GUEST_ASSERT_NE(hcall->control, 0);
+
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, pgs_gpa);
+
+	if (!(hcall->control & HV_HYPERCALL_FAST_BIT)) {
+		input = pgs_gpa;
+		output = pgs_gpa + PAGE_SIZE;
+	} else {
+		input = output = 0;
+	}
+
+	vector = __hyperv_hypercall(hcall->control, input, output, &res);
+	if (hcall->ud_expected) {
+		__GUEST_ASSERT(vector == UD_VECTOR,
+			       "Expected #UD for control '%lu', got %s",
+			       hcall->control, ex_str(vector));
+	} else {
+		__GUEST_ASSERT(!vector,
+			       "Expected no exception for control '%lu', got %s",
+			       hcall->control, ex_str(vector));
+		GUEST_ASSERT_EQ(res, hcall->expect);
+	}
+
+	GUEST_DONE();
+}
+
+static void vcpu_reset_hv_cpuid(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * Enable all supported Hyper-V features, then clear the leafs holding
+	 * the features that will be tested one by one.
+	 */
+	vcpu_set_hv_cpuid(vcpu);
+
+	vcpu_clear_cpuid_entry(vcpu, HYPERV_CPUID_FEATURES);
+	vcpu_clear_cpuid_entry(vcpu, HYPERV_CPUID_ENLIGHTMENT_INFO);
+	vcpu_clear_cpuid_entry(vcpu, HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES);
+}
+
+static void guest_test_msrs_access(void)
+{
+	struct kvm_cpuid2 *prev_cpuid = NULL;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int stage = 0;
+	vm_vaddr_t msr_gva;
+	struct msr_data *msr;
+	bool has_invtsc = kvm_cpu_has(X86_FEATURE_INVTSC);
+
+	while (true) {
+		vm = vm_create_with_one_vcpu(&vcpu, guest_msr);
+
+		msr_gva = vm_vaddr_alloc_page(vm);
+		memset(addr_gva2hva(vm, msr_gva), 0x0, getpagesize());
+		msr = addr_gva2hva(vm, msr_gva);
+
+		vcpu_args_set(vcpu, 1, msr_gva);
+		vcpu_enable_cap(vcpu, KVM_CAP_HYPERV_ENFORCE_CPUID, 1);
+
+		if (!prev_cpuid) {
+			vcpu_reset_hv_cpuid(vcpu);
+
+			prev_cpuid = allocate_kvm_cpuid2(vcpu->cpuid->nent);
+		} else {
+			vcpu_init_cpuid(vcpu, prev_cpuid);
+		}
+
+		/* TODO: Make this entire test easier to maintain. */
+		if (stage >= 21)
+			vcpu_enable_cap(vcpu, KVM_CAP_HYPERV_SYNIC2, 0);
+
+		switch (stage) {
+		case 0:
+			/*
+			 * Only available when Hyper-V identification is set
+			 */
+			msr->idx = HV_X64_MSR_GUEST_OS_ID;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 1:
+			msr->idx = HV_X64_MSR_HYPERCALL;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 2:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_HYPERCALL_AVAILABLE);
+			/*
+			 * HV_X64_MSR_GUEST_OS_ID has to be written first to make
+			 * HV_X64_MSR_HYPERCALL available.
+			 */
+			msr->idx = HV_X64_MSR_GUEST_OS_ID;
+			msr->write = true;
+			msr->write_val = HYPERV_LINUX_OS_ID;
+			msr->fault_expected = false;
+			break;
+		case 3:
+			msr->idx = HV_X64_MSR_GUEST_OS_ID;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 4:
+			msr->idx = HV_X64_MSR_HYPERCALL;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+
+		case 5:
+			msr->idx = HV_X64_MSR_VP_RUNTIME;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 6:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_VP_RUNTIME_AVAILABLE);
+			msr->idx = HV_X64_MSR_VP_RUNTIME;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 7:
+			/* Read only */
+			msr->idx = HV_X64_MSR_VP_RUNTIME;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = true;
+			break;
+
+		case 8:
+			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 9:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_TIME_REF_COUNT_AVAILABLE);
+			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 10:
+			/* Read only */
+			msr->idx = HV_X64_MSR_TIME_REF_COUNT;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = true;
+			break;
+
+		case 11:
+			msr->idx = HV_X64_MSR_VP_INDEX;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 12:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_VP_INDEX_AVAILABLE);
+			msr->idx = HV_X64_MSR_VP_INDEX;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 13:
+			/* Read only */
+			msr->idx = HV_X64_MSR_VP_INDEX;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = true;
+			break;
+
+		case 14:
+			msr->idx = HV_X64_MSR_RESET;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 15:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_RESET_AVAILABLE);
+			msr->idx = HV_X64_MSR_RESET;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 16:
+			msr->idx = HV_X64_MSR_RESET;
+			msr->write = true;
+			/*
+			 * TODO: the test only writes '0' to HV_X64_MSR_RESET
+			 * at the moment, writing some other value there will
+			 * trigger real vCPU reset and the code is not prepared
+			 * to handle it yet.
+			 */
+			msr->write_val = 0;
+			msr->fault_expected = false;
+			break;
+
+		case 17:
+			msr->idx = HV_X64_MSR_REFERENCE_TSC;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 18:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_REFERENCE_TSC_AVAILABLE);
+			msr->idx = HV_X64_MSR_REFERENCE_TSC;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 19:
+			msr->idx = HV_X64_MSR_REFERENCE_TSC;
+			msr->write = true;
+			msr->write_val = 0;
+			msr->fault_expected = false;
+			break;
+
+		case 20:
+			msr->idx = HV_X64_MSR_EOM;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 21:
+			/*
+			 * Remains unavailable even with KVM_CAP_HYPERV_SYNIC2
+			 * capability enabled and guest visible CPUID bit unset.
+			 */
+			msr->idx = HV_X64_MSR_EOM;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 22:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_SYNIC_AVAILABLE);
+			msr->idx = HV_X64_MSR_EOM;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 23:
+			msr->idx = HV_X64_MSR_EOM;
+			msr->write = true;
+			msr->write_val = 0;
+			msr->fault_expected = false;
+			break;
+
+		case 24:
+			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 25:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_SYNTIMER_AVAILABLE);
+			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 26:
+			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
+			msr->write = true;
+			msr->write_val = 0;
+			msr->fault_expected = false;
+			break;
+		case 27:
+			/* Direct mode test */
+			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
+			msr->write = true;
+			msr->write_val = 1 << 12;
+			msr->fault_expected = true;
+			break;
+		case 28:
+			vcpu_set_cpuid_feature(vcpu, HV_STIMER_DIRECT_MODE_AVAILABLE);
+			msr->idx = HV_X64_MSR_STIMER0_CONFIG;
+			msr->write = true;
+			msr->write_val = 1 << 12;
+			msr->fault_expected = false;
+			break;
+
+		case 29:
+			msr->idx = HV_X64_MSR_EOI;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 30:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_APIC_ACCESS_AVAILABLE);
+			msr->idx = HV_X64_MSR_EOI;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = false;
+			break;
+
+		case 31:
+			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 32:
+			vcpu_set_cpuid_feature(vcpu, HV_ACCESS_FREQUENCY_MSRS);
+			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 33:
+			/* Read only */
+			msr->idx = HV_X64_MSR_TSC_FREQUENCY;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = true;
+			break;
+
+		case 34:
+			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 35:
+			vcpu_set_cpuid_feature(vcpu, HV_ACCESS_REENLIGHTENMENT);
+			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 36:
+			msr->idx = HV_X64_MSR_REENLIGHTENMENT_CONTROL;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = false;
+			break;
+		case 37:
+			/* Can only write '0' */
+			msr->idx = HV_X64_MSR_TSC_EMULATION_STATUS;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = true;
+			break;
+
+		case 38:
+			msr->idx = HV_X64_MSR_CRASH_P0;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 39:
+			vcpu_set_cpuid_feature(vcpu, HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE);
+			msr->idx = HV_X64_MSR_CRASH_P0;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 40:
+			msr->idx = HV_X64_MSR_CRASH_P0;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = false;
+			break;
+
+		case 41:
+			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 42:
+			vcpu_set_cpuid_feature(vcpu, HV_FEATURE_DEBUG_MSRS_AVAILABLE);
+			vcpu_set_cpuid_feature(vcpu, HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING);
+			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 43:
+			msr->idx = HV_X64_MSR_SYNDBG_STATUS;
+			msr->write = true;
+			msr->write_val = 0;
+			msr->fault_expected = false;
+			break;
+
+		case 44:
+			/* MSR is not available when CPUID feature bit is unset */
+			if (!has_invtsc)
+				goto next_stage;
+			msr->idx = HV_X64_MSR_TSC_INVARIANT_CONTROL;
+			msr->write = false;
+			msr->fault_expected = true;
+			break;
+		case 45:
+			/* MSR is vailable when CPUID feature bit is set */
+			if (!has_invtsc)
+				goto next_stage;
+			vcpu_set_cpuid_feature(vcpu, HV_ACCESS_TSC_INVARIANT);
+			msr->idx = HV_X64_MSR_TSC_INVARIANT_CONTROL;
+			msr->write = false;
+			msr->fault_expected = false;
+			break;
+		case 46:
+			/* Writing bits other than 0 is forbidden */
+			if (!has_invtsc)
+				goto next_stage;
+			msr->idx = HV_X64_MSR_TSC_INVARIANT_CONTROL;
+			msr->write = true;
+			msr->write_val = 0xdeadbeef;
+			msr->fault_expected = true;
+			break;
+		case 47:
+			/* Setting bit 0 enables the feature */
+			if (!has_invtsc)
+				goto next_stage;
+			msr->idx = HV_X64_MSR_TSC_INVARIANT_CONTROL;
+			msr->write = true;
+			msr->write_val = 1;
+			msr->fault_expected = false;
+			break;
+
+		default:
+			kvm_vm_free(vm);
+			return;
+		}
+
+		vcpu_set_cpuid(vcpu);
+
+		memcpy(prev_cpuid, vcpu->cpuid, kvm_cpuid2_size(vcpu->cpuid->nent));
+
+		pr_debug("Stage %d: testing msr: 0x%x for %s\n", stage,
+			 msr->idx, msr->write ? "write" : "read");
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			return;
+		case UCALL_DONE:
+			break;
+		default:
+			TEST_FAIL("Unhandled ucall: %ld", uc.cmd);
+			return;
+		}
+
+next_stage:
+		stage++;
+		kvm_vm_free(vm);
+	}
+}
+
+static void guest_test_hcalls_access(void)
+{
+	struct kvm_cpuid2 *prev_cpuid = NULL;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int stage = 0;
+	vm_vaddr_t hcall_page, hcall_params;
+	struct hcall_data *hcall;
+
+	while (true) {
+		vm = vm_create_with_one_vcpu(&vcpu, guest_hcall);
+
+		/* Hypercall input/output */
+		hcall_page = vm_vaddr_alloc_pages(vm, 2);
+		memset(addr_gva2hva(vm, hcall_page), 0x0, 2 * getpagesize());
+
+		hcall_params = vm_vaddr_alloc_page(vm);
+		memset(addr_gva2hva(vm, hcall_params), 0x0, getpagesize());
+		hcall = addr_gva2hva(vm, hcall_params);
+
+		vcpu_args_set(vcpu, 2, addr_gva2gpa(vm, hcall_page), hcall_params);
+		vcpu_enable_cap(vcpu, KVM_CAP_HYPERV_ENFORCE_CPUID, 1);
+
+		if (!prev_cpuid) {
+			vcpu_reset_hv_cpuid(vcpu);
+
+			prev_cpuid = allocate_kvm_cpuid2(vcpu->cpuid->nent);
+		} else {
+			vcpu_init_cpuid(vcpu, prev_cpuid);
+		}
+
+		switch (stage) {
+		case 0:
+			vcpu_set_cpuid_feature(vcpu, HV_MSR_HYPERCALL_AVAILABLE);
+			hcall->control = 0xbeef;
+			hcall->expect = HV_STATUS_INVALID_HYPERCALL_CODE;
+			break;
+
+		case 1:
+			hcall->control = HVCALL_POST_MESSAGE;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 2:
+			vcpu_set_cpuid_feature(vcpu, HV_POST_MESSAGES);
+			hcall->control = HVCALL_POST_MESSAGE;
+			hcall->expect = HV_STATUS_INVALID_HYPERCALL_INPUT;
+			break;
+
+		case 3:
+			hcall->control = HVCALL_SIGNAL_EVENT;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 4:
+			vcpu_set_cpuid_feature(vcpu, HV_SIGNAL_EVENTS);
+			hcall->control = HVCALL_SIGNAL_EVENT;
+			hcall->expect = HV_STATUS_INVALID_HYPERCALL_INPUT;
+			break;
+
+		case 5:
+			hcall->control = HVCALL_RESET_DEBUG_SESSION;
+			hcall->expect = HV_STATUS_INVALID_HYPERCALL_CODE;
+			break;
+		case 6:
+			vcpu_set_cpuid_feature(vcpu, HV_X64_SYNDBG_CAP_ALLOW_KERNEL_DEBUGGING);
+			hcall->control = HVCALL_RESET_DEBUG_SESSION;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 7:
+			vcpu_set_cpuid_feature(vcpu, HV_DEBUGGING);
+			hcall->control = HVCALL_RESET_DEBUG_SESSION;
+			hcall->expect = HV_STATUS_OPERATION_DENIED;
+			break;
+
+		case 8:
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 9:
+			vcpu_set_cpuid_feature(vcpu, HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED);
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE;
+			hcall->expect = HV_STATUS_SUCCESS;
+			break;
+		case 10:
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 11:
+			vcpu_set_cpuid_feature(vcpu, HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED);
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX;
+			hcall->expect = HV_STATUS_SUCCESS;
+			break;
+
+		case 12:
+			hcall->control = HVCALL_SEND_IPI;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 13:
+			vcpu_set_cpuid_feature(vcpu, HV_X64_CLUSTER_IPI_RECOMMENDED);
+			hcall->control = HVCALL_SEND_IPI;
+			hcall->expect = HV_STATUS_INVALID_HYPERCALL_INPUT;
+			break;
+		case 14:
+			/* Nothing in 'sparse banks' -> success */
+			hcall->control = HVCALL_SEND_IPI_EX;
+			hcall->expect = HV_STATUS_SUCCESS;
+			break;
+
+		case 15:
+			hcall->control = HVCALL_NOTIFY_LONG_SPIN_WAIT;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 16:
+			vcpu_set_cpuid_feature(vcpu, HV_PV_SPINLOCKS_TEST);
+			hcall->control = HVCALL_NOTIFY_LONG_SPIN_WAIT;
+			hcall->expect = HV_STATUS_SUCCESS;
+			break;
+		case 17:
+			/* XMM fast hypercall */
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE | HV_HYPERCALL_FAST_BIT;
+			hcall->ud_expected = true;
+			break;
+		case 18:
+			vcpu_set_cpuid_feature(vcpu, HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE);
+			hcall->control = HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE | HV_HYPERCALL_FAST_BIT;
+			hcall->ud_expected = false;
+			hcall->expect = HV_STATUS_SUCCESS;
+			break;
+		case 19:
+			hcall->control = HV_EXT_CALL_QUERY_CAPABILITIES;
+			hcall->expect = HV_STATUS_ACCESS_DENIED;
+			break;
+		case 20:
+			vcpu_set_cpuid_feature(vcpu, HV_ENABLE_EXTENDED_HYPERCALLS);
+			hcall->control = HV_EXT_CALL_QUERY_CAPABILITIES | HV_HYPERCALL_FAST_BIT;
+			hcall->expect = HV_STATUS_INVALID_PARAMETER;
+			break;
+		case 21:
+			kvm_vm_free(vm);
+			return;
+		}
+
+		vcpu_set_cpuid(vcpu);
+
+		memcpy(prev_cpuid, vcpu->cpuid, kvm_cpuid2_size(vcpu->cpuid->nent));
+
+		pr_debug("Stage %d: testing hcall: 0x%lx\n", stage, hcall->control);
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			return;
+		case UCALL_DONE:
+			break;
+		default:
+			TEST_FAIL("Unhandled ucall: %ld", uc.cmd);
+			return;
+		}
+
+		stage++;
+		kvm_vm_free(vm);
+	}
+}
+
+int main(void)
+{
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_ENFORCE_CPUID));
+
+	pr_info("Testing access to Hyper-V specific MSRs\n");
+	guest_test_msrs_access();
+
+	pr_info("Testing access to Hyper-V hypercalls\n");
+	guest_test_hcalls_access();
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_ipi.c b/tools/testing/selftests/kvm/x86/hyperv_ipi.c
new file mode 100644
index 000000000000..ca61836c4e32
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_ipi.c
@@ -0,0 +1,310 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hyper-V HvCallSendSyntheticClusterIpi{,Ex} tests
+ *
+ * Copyright (C) 2022, Red Hat, Inc.
+ *
+ */
+#include <pthread.h>
+#include <inttypes.h>
+
+#include "kvm_util.h"
+#include "hyperv.h"
+#include "test_util.h"
+#include "vmx.h"
+
+#define RECEIVER_VCPU_ID_1 2
+#define RECEIVER_VCPU_ID_2 65
+
+#define IPI_VECTOR	 0xfe
+
+static volatile uint64_t ipis_rcvd[RECEIVER_VCPU_ID_2 + 1];
+
+struct hv_vpset {
+	u64 format;
+	u64 valid_bank_mask;
+	u64 bank_contents[2];
+};
+
+enum HV_GENERIC_SET_FORMAT {
+	HV_GENERIC_SET_SPARSE_4K,
+	HV_GENERIC_SET_ALL,
+};
+
+/* HvCallSendSyntheticClusterIpi hypercall */
+struct hv_send_ipi {
+	u32 vector;
+	u32 reserved;
+	u64 cpu_mask;
+};
+
+/* HvCallSendSyntheticClusterIpiEx hypercall */
+struct hv_send_ipi_ex {
+	u32 vector;
+	u32 reserved;
+	struct hv_vpset vp_set;
+};
+
+static inline void hv_init(vm_vaddr_t pgs_gpa)
+{
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, pgs_gpa);
+}
+
+static void receiver_code(void *hcall_page, vm_vaddr_t pgs_gpa)
+{
+	u32 vcpu_id;
+
+	x2apic_enable();
+	hv_init(pgs_gpa);
+
+	vcpu_id = rdmsr(HV_X64_MSR_VP_INDEX);
+
+	/* Signal sender vCPU we're ready */
+	ipis_rcvd[vcpu_id] = (u64)-1;
+
+	for (;;) {
+		safe_halt();
+		cli();
+	}
+}
+
+static void guest_ipi_handler(struct ex_regs *regs)
+{
+	u32 vcpu_id = rdmsr(HV_X64_MSR_VP_INDEX);
+
+	ipis_rcvd[vcpu_id]++;
+	wrmsr(HV_X64_MSR_EOI, 1);
+}
+
+static inline void nop_loop(void)
+{
+	int i;
+
+	for (i = 0; i < 100000000; i++)
+		asm volatile("nop");
+}
+
+static void sender_guest_code(void *hcall_page, vm_vaddr_t pgs_gpa)
+{
+	struct hv_send_ipi *ipi = (struct hv_send_ipi *)hcall_page;
+	struct hv_send_ipi_ex *ipi_ex = (struct hv_send_ipi_ex *)hcall_page;
+	int stage = 1, ipis_expected[2] = {0};
+
+	hv_init(pgs_gpa);
+	GUEST_SYNC(stage++);
+
+	/* Wait for receiver vCPUs to come up */
+	while (!ipis_rcvd[RECEIVER_VCPU_ID_1] || !ipis_rcvd[RECEIVER_VCPU_ID_2])
+		nop_loop();
+	ipis_rcvd[RECEIVER_VCPU_ID_1] = ipis_rcvd[RECEIVER_VCPU_ID_2] = 0;
+
+	/* 'Slow' HvCallSendSyntheticClusterIpi to RECEIVER_VCPU_ID_1 */
+	ipi->vector = IPI_VECTOR;
+	ipi->cpu_mask = 1 << RECEIVER_VCPU_ID_1;
+	hyperv_hypercall(HVCALL_SEND_IPI, pgs_gpa, pgs_gpa + PAGE_SIZE);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ipis_expected[1]);
+	GUEST_SYNC(stage++);
+	/* 'Fast' HvCallSendSyntheticClusterIpi to RECEIVER_VCPU_ID_1 */
+	hyperv_hypercall(HVCALL_SEND_IPI | HV_HYPERCALL_FAST_BIT,
+			 IPI_VECTOR, 1 << RECEIVER_VCPU_ID_1);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ipis_expected[1]);
+	GUEST_SYNC(stage++);
+
+	/* 'Slow' HvCallSendSyntheticClusterIpiEx to RECEIVER_VCPU_ID_1 */
+	memset(hcall_page, 0, PAGE_SIZE);
+	ipi_ex->vector = IPI_VECTOR;
+	ipi_ex->vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+	ipi_ex->vp_set.valid_bank_mask = 1 << 0;
+	ipi_ex->vp_set.bank_contents[0] = BIT(RECEIVER_VCPU_ID_1);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 pgs_gpa, pgs_gpa + PAGE_SIZE);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ipis_expected[1]);
+	GUEST_SYNC(stage++);
+	/* 'XMM Fast' HvCallSendSyntheticClusterIpiEx to RECEIVER_VCPU_ID_1 */
+	hyperv_write_xmm_input(&ipi_ex->vp_set.valid_bank_mask, 1);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | HV_HYPERCALL_FAST_BIT |
+			 (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 IPI_VECTOR, HV_GENERIC_SET_SPARSE_4K);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ipis_expected[1]);
+	GUEST_SYNC(stage++);
+
+	/* 'Slow' HvCallSendSyntheticClusterIpiEx to RECEIVER_VCPU_ID_2 */
+	memset(hcall_page, 0, PAGE_SIZE);
+	ipi_ex->vector = IPI_VECTOR;
+	ipi_ex->vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+	ipi_ex->vp_set.valid_bank_mask = 1 << 1;
+	ipi_ex->vp_set.bank_contents[0] = BIT(RECEIVER_VCPU_ID_2 - 64);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 pgs_gpa, pgs_gpa + PAGE_SIZE);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+	/* 'XMM Fast' HvCallSendSyntheticClusterIpiEx to RECEIVER_VCPU_ID_2 */
+	hyperv_write_xmm_input(&ipi_ex->vp_set.valid_bank_mask, 1);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | HV_HYPERCALL_FAST_BIT |
+			 (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 IPI_VECTOR, HV_GENERIC_SET_SPARSE_4K);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+
+	/* 'Slow' HvCallSendSyntheticClusterIpiEx to both RECEIVER_VCPU_ID_{1,2} */
+	memset(hcall_page, 0, PAGE_SIZE);
+	ipi_ex->vector = IPI_VECTOR;
+	ipi_ex->vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+	ipi_ex->vp_set.valid_bank_mask = 1 << 1 | 1;
+	ipi_ex->vp_set.bank_contents[0] = BIT(RECEIVER_VCPU_ID_1);
+	ipi_ex->vp_set.bank_contents[1] = BIT(RECEIVER_VCPU_ID_2 - 64);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | (2 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 pgs_gpa, pgs_gpa + PAGE_SIZE);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+	/* 'XMM Fast' HvCallSendSyntheticClusterIpiEx to both RECEIVER_VCPU_ID_{1, 2} */
+	hyperv_write_xmm_input(&ipi_ex->vp_set.valid_bank_mask, 2);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | HV_HYPERCALL_FAST_BIT |
+			 (2 << HV_HYPERCALL_VARHEAD_OFFSET),
+			 IPI_VECTOR, HV_GENERIC_SET_SPARSE_4K);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+
+	/* 'Slow' HvCallSendSyntheticClusterIpiEx to HV_GENERIC_SET_ALL */
+	memset(hcall_page, 0, PAGE_SIZE);
+	ipi_ex->vector = IPI_VECTOR;
+	ipi_ex->vp_set.format = HV_GENERIC_SET_ALL;
+	hyperv_hypercall(HVCALL_SEND_IPI_EX, pgs_gpa, pgs_gpa + PAGE_SIZE);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+	/*
+	 * 'XMM Fast' HvCallSendSyntheticClusterIpiEx to HV_GENERIC_SET_ALL.
+	 */
+	ipi_ex->vp_set.valid_bank_mask = 0;
+	hyperv_write_xmm_input(&ipi_ex->vp_set.valid_bank_mask, 2);
+	hyperv_hypercall(HVCALL_SEND_IPI_EX | HV_HYPERCALL_FAST_BIT,
+			 IPI_VECTOR, HV_GENERIC_SET_ALL);
+	nop_loop();
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_1] == ++ipis_expected[0]);
+	GUEST_ASSERT(ipis_rcvd[RECEIVER_VCPU_ID_2] == ++ipis_expected[1]);
+	GUEST_SYNC(stage++);
+
+	GUEST_DONE();
+}
+
+static void *vcpu_thread(void *arg)
+{
+	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)arg;
+	int old, r;
+
+	r = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old);
+	TEST_ASSERT(!r, "pthread_setcanceltype failed on vcpu_id=%u with errno=%d",
+		    vcpu->id, r);
+
+	vcpu_run(vcpu);
+
+	TEST_FAIL("vCPU %u exited unexpectedly", vcpu->id);
+
+	return NULL;
+}
+
+static void cancel_join_vcpu_thread(pthread_t thread, struct kvm_vcpu *vcpu)
+{
+	void *retval;
+	int r;
+
+	r = pthread_cancel(thread);
+	TEST_ASSERT(!r, "pthread_cancel on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+
+	r = pthread_join(thread, &retval);
+	TEST_ASSERT(!r, "pthread_join on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+	TEST_ASSERT(retval == PTHREAD_CANCELED,
+		    "expected retval=%p, got %p", PTHREAD_CANCELED,
+		    retval);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu[3];
+	vm_vaddr_t hcall_page;
+	pthread_t threads[2];
+	int stage = 1, r;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_SEND_IPI));
+
+	vm = vm_create_with_one_vcpu(&vcpu[0], sender_guest_code);
+
+	/* Hypercall input/output */
+	hcall_page = vm_vaddr_alloc_pages(vm, 2);
+	memset(addr_gva2hva(vm, hcall_page), 0x0, 2 * getpagesize());
+
+
+	vcpu[1] = vm_vcpu_add(vm, RECEIVER_VCPU_ID_1, receiver_code);
+	vcpu_args_set(vcpu[1], 2, hcall_page, addr_gva2gpa(vm, hcall_page));
+	vcpu_set_msr(vcpu[1], HV_X64_MSR_VP_INDEX, RECEIVER_VCPU_ID_1);
+	vcpu_set_hv_cpuid(vcpu[1]);
+
+	vcpu[2] = vm_vcpu_add(vm, RECEIVER_VCPU_ID_2, receiver_code);
+	vcpu_args_set(vcpu[2], 2, hcall_page, addr_gva2gpa(vm, hcall_page));
+	vcpu_set_msr(vcpu[2], HV_X64_MSR_VP_INDEX, RECEIVER_VCPU_ID_2);
+	vcpu_set_hv_cpuid(vcpu[2]);
+
+	vm_install_exception_handler(vm, IPI_VECTOR, guest_ipi_handler);
+
+	vcpu_args_set(vcpu[0], 2, hcall_page, addr_gva2gpa(vm, hcall_page));
+	vcpu_set_hv_cpuid(vcpu[0]);
+
+	r = pthread_create(&threads[0], NULL, vcpu_thread, vcpu[1]);
+	TEST_ASSERT(!r, "pthread_create failed errno=%d", r);
+
+	r = pthread_create(&threads[1], NULL, vcpu_thread, vcpu[2]);
+	TEST_ASSERT(!r, "pthread_create failed errno=%d", errno);
+
+	while (true) {
+		vcpu_run(vcpu[0]);
+
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu[0], KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu[0], &uc)) {
+		case UCALL_SYNC:
+			TEST_ASSERT(uc.args[1] == stage,
+				    "Unexpected stage: %ld (%d expected)",
+				    uc.args[1], stage);
+			break;
+		case UCALL_DONE:
+			goto done;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		stage++;
+	}
+
+done:
+	cancel_join_vcpu_thread(threads[0], vcpu[1]);
+	cancel_join_vcpu_thread(threads[1], vcpu[2]);
+	kvm_vm_free(vm);
+
+	return r;
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_svm_test.c b/tools/testing/selftests/kvm/x86/hyperv_svm_test.c
new file mode 100644
index 000000000000..0ddb63229bcb
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_svm_test.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022, Red Hat, Inc.
+ *
+ * Tests for Hyper-V extensions to SVM.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <linux/bitmap.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "hyperv.h"
+
+#define L2_GUEST_STACK_SIZE 256
+
+/* Exit to L1 from L2 with RDMSR instruction */
+static inline void rdmsr_from_l2(uint32_t msr)
+{
+	/* Currently, L1 doesn't preserve GPRs during vmexits. */
+	__asm__ __volatile__ ("rdmsr" : : "c"(msr) :
+			      "rax", "rbx", "rdx", "rsi", "rdi", "r8", "r9",
+			      "r10", "r11", "r12", "r13", "r14", "r15");
+}
+
+void l2_guest_code(void)
+{
+	u64 unused;
+
+	GUEST_SYNC(3);
+	/* Exit to L1 */
+	vmmcall();
+
+	/* MSR-Bitmap tests */
+	rdmsr_from_l2(MSR_FS_BASE); /* intercepted */
+	rdmsr_from_l2(MSR_FS_BASE); /* intercepted */
+	rdmsr_from_l2(MSR_GS_BASE); /* not intercepted */
+	vmmcall();
+	rdmsr_from_l2(MSR_GS_BASE); /* intercepted */
+
+	GUEST_SYNC(5);
+
+	/* L2 TLB flush tests */
+	hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE |
+			 HV_HYPERCALL_FAST_BIT, 0x0,
+			 HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+			 HV_FLUSH_ALL_PROCESSORS);
+	rdmsr_from_l2(MSR_FS_BASE);
+	/*
+	 * Note: hypercall status (RAX) is not preserved correctly by L1 after
+	 * synthetic vmexit, use unchecked version.
+	 */
+	__hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE |
+			   HV_HYPERCALL_FAST_BIT, 0x0,
+			   HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+			   HV_FLUSH_ALL_PROCESSORS, &unused);
+
+	/* Done, exit to L1 and never come back.  */
+	vmmcall();
+}
+
+static void __attribute__((__flatten__)) guest_code(struct svm_test_data *svm,
+						    struct hyperv_test_pages *hv_pages,
+						    vm_vaddr_t pgs_gpa)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+	struct hv_vmcb_enlightenments *hve = &vmcb->control.hv_enlightenments;
+
+	GUEST_SYNC(1);
+
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, pgs_gpa);
+	enable_vp_assist(hv_pages->vp_assist_gpa, hv_pages->vp_assist);
+
+	GUEST_ASSERT(svm->vmcb_gpa);
+	/* Prepare for L2 execution. */
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* L2 TLB flush setup */
+	hve->partition_assist_page = hv_pages->partition_assist_gpa;
+	hve->hv_enlightenments_control.nested_flush_hypercall = 1;
+	hve->hv_vm_id = 1;
+	hve->hv_vp_id = 1;
+	current_vp_assist->nested_control.features.directhypercall = 1;
+	*(u32 *)(hv_pages->partition_assist) = 0;
+
+	GUEST_SYNC(2);
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_SYNC(4);
+	vmcb->save.rip += 3;
+
+	/* Intercept RDMSR 0xc0000100 */
+	vmcb->control.intercept |= 1ULL << INTERCEPT_MSR_PROT;
+	__set_bit(2 * (MSR_FS_BASE & 0x1fff), svm->msr + 0x800);
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_MSR);
+	vmcb->save.rip += 2; /* rdmsr */
+
+	/* Enable enlightened MSR bitmap */
+	hve->hv_enlightenments_control.msr_bitmap = 1;
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_MSR);
+	vmcb->save.rip += 2; /* rdmsr */
+
+	/* Intercept RDMSR 0xc0000101 without telling KVM about it */
+	__set_bit(2 * (MSR_GS_BASE & 0x1fff), svm->msr + 0x800);
+	/* Make sure HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP is set */
+	vmcb->control.clean |= HV_VMCB_NESTED_ENLIGHTENMENTS;
+	run_guest(vmcb, svm->vmcb_gpa);
+	/* Make sure we don't see SVM_EXIT_MSR here so eMSR bitmap works */
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	vmcb->save.rip += 3; /* vmcall */
+
+	/* Now tell KVM we've changed MSR-Bitmap */
+	vmcb->control.clean &= ~HV_VMCB_NESTED_ENLIGHTENMENTS;
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_MSR);
+	vmcb->save.rip += 2; /* rdmsr */
+
+
+	/*
+	 * L2 TLB flush test. First VMCALL should be handled directly by L0,
+	 * no VMCALL exit expected.
+	 */
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_MSR);
+	vmcb->save.rip += 2; /* rdmsr */
+	/* Enable synthetic vmexit */
+	*(u32 *)(hv_pages->partition_assist) = 1;
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == HV_SVM_EXITCODE_ENL);
+	GUEST_ASSERT(vmcb->control.exit_info_1 == HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH);
+
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_SYNC(6);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t nested_gva = 0, hv_pages_gva = 0;
+	vm_vaddr_t hcall_page;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int stage;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
+	TEST_REQUIRE(kvm_hv_cpu_has(HV_X64_NESTED_DIRECT_FLUSH));
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vcpu_set_hv_cpuid(vcpu);
+	vcpu_alloc_svm(vm, &nested_gva);
+	vcpu_alloc_hyperv_test_pages(vm, &hv_pages_gva);
+
+	hcall_page = vm_vaddr_alloc_pages(vm, 1);
+	memset(addr_gva2hva(vm, hcall_page), 0x0,  getpagesize());
+
+	vcpu_args_set(vcpu, 3, nested_gva, hv_pages_gva, addr_gva2gpa(vm, hcall_page));
+	vcpu_set_msr(vcpu, HV_X64_MSR_VP_INDEX, vcpu->id);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		/* UCALL_SYNC is handled here.  */
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage, "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage, (ulong)uc.args[1]);
+
+	}
+
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c b/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c
new file mode 100644
index 000000000000..a3b7ce155981
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/hyperv_tlb_flush.c
@@ -0,0 +1,680 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hyper-V HvFlushVirtualAddress{List,Space}{,Ex} tests
+ *
+ * Copyright (C) 2022, Red Hat, Inc.
+ *
+ */
+#include <asm/barrier.h>
+#include <pthread.h>
+#include <inttypes.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "hyperv.h"
+#include "test_util.h"
+#include "vmx.h"
+
+#define WORKER_VCPU_ID_1 2
+#define WORKER_VCPU_ID_2 65
+
+#define NTRY 100
+#define NTEST_PAGES 2
+
+struct hv_vpset {
+	u64 format;
+	u64 valid_bank_mask;
+	u64 bank_contents[];
+};
+
+enum HV_GENERIC_SET_FORMAT {
+	HV_GENERIC_SET_SPARSE_4K,
+	HV_GENERIC_SET_ALL,
+};
+
+#define HV_FLUSH_ALL_PROCESSORS			BIT(0)
+#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES	BIT(1)
+#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY	BIT(2)
+#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT	BIT(3)
+
+/* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */
+struct hv_tlb_flush {
+	u64 address_space;
+	u64 flags;
+	u64 processor_mask;
+	u64 gva_list[];
+} __packed;
+
+/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */
+struct hv_tlb_flush_ex {
+	u64 address_space;
+	u64 flags;
+	struct hv_vpset hv_vp_set;
+	u64 gva_list[];
+} __packed;
+
+/*
+ * Pass the following info to 'workers' and 'sender'
+ * - Hypercall page's GVA
+ * - Hypercall page's GPA
+ * - Test pages GVA
+ * - GVAs of the test pages' PTEs
+ */
+struct test_data {
+	vm_vaddr_t hcall_gva;
+	vm_paddr_t hcall_gpa;
+	vm_vaddr_t test_pages;
+	vm_vaddr_t test_pages_pte[NTEST_PAGES];
+};
+
+/* 'Worker' vCPU code checking the contents of the test page */
+static void worker_guest_code(vm_vaddr_t test_data)
+{
+	struct test_data *data = (struct test_data *)test_data;
+	u32 vcpu_id = rdmsr(HV_X64_MSR_VP_INDEX);
+	void *exp_page = (void *)data->test_pages + PAGE_SIZE * NTEST_PAGES;
+	u64 *this_cpu = (u64 *)(exp_page + vcpu_id * sizeof(u64));
+	u64 expected, val;
+
+	x2apic_enable();
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+
+	for (;;) {
+		cpu_relax();
+
+		expected = READ_ONCE(*this_cpu);
+
+		/*
+		 * Make sure the value in the test page is read after reading
+		 * the expectation for the first time. Pairs with wmb() in
+		 * prepare_to_test().
+		 */
+		rmb();
+
+		val = READ_ONCE(*(u64 *)data->test_pages);
+
+		/*
+		 * Make sure the value in the test page is read after before
+		 * reading the expectation for the second time. Pairs with wmb()
+		 * post_test().
+		 */
+		rmb();
+
+		/*
+		 * '0' indicates the sender is between iterations, wait until
+		 * the sender is ready for this vCPU to start checking again.
+		 */
+		if (!expected)
+			continue;
+
+		/*
+		 * Re-read the per-vCPU byte to ensure the sender didn't move
+		 * onto a new iteration.
+		 */
+		if (expected != READ_ONCE(*this_cpu))
+			continue;
+
+		GUEST_ASSERT(val == expected);
+	}
+}
+
+/*
+ * Write per-CPU info indicating what each 'worker' CPU is supposed to see in
+ * test page. '0' means don't check.
+ */
+static void set_expected_val(void *addr, u64 val, int vcpu_id)
+{
+	void *exp_page = addr + PAGE_SIZE * NTEST_PAGES;
+
+	*(u64 *)(exp_page + vcpu_id * sizeof(u64)) = val;
+}
+
+/*
+ * Update PTEs swapping two test pages.
+ * TODO: use swap()/xchg() when these are provided.
+ */
+static void swap_two_test_pages(vm_paddr_t pte_gva1, vm_paddr_t pte_gva2)
+{
+	uint64_t tmp = *(uint64_t *)pte_gva1;
+
+	*(uint64_t *)pte_gva1 = *(uint64_t *)pte_gva2;
+	*(uint64_t *)pte_gva2 = tmp;
+}
+
+/*
+ * TODO: replace the silly NOP loop with a proper udelay() implementation.
+ */
+static inline void do_delay(void)
+{
+	int i;
+
+	for (i = 0; i < 1000000; i++)
+		asm volatile("nop");
+}
+
+/*
+ * Prepare to test: 'disable' workers by setting the expectation to '0',
+ * clear hypercall input page and then swap two test pages.
+ */
+static inline void prepare_to_test(struct test_data *data)
+{
+	/* Clear hypercall input page */
+	memset((void *)data->hcall_gva, 0, PAGE_SIZE);
+
+	/* 'Disable' workers */
+	set_expected_val((void *)data->test_pages, 0x0, WORKER_VCPU_ID_1);
+	set_expected_val((void *)data->test_pages, 0x0, WORKER_VCPU_ID_2);
+
+	/* Make sure workers are 'disabled' before we swap PTEs. */
+	wmb();
+
+	/* Make sure workers have enough time to notice */
+	do_delay();
+
+	/* Swap test page mappings */
+	swap_two_test_pages(data->test_pages_pte[0], data->test_pages_pte[1]);
+}
+
+/*
+ * Finalize the test: check hypercall resule set the expected val for
+ * 'worker' CPUs and give them some time to test.
+ */
+static inline void post_test(struct test_data *data, u64 exp1, u64 exp2)
+{
+	/* Make sure we change the expectation after swapping PTEs */
+	wmb();
+
+	/* Set the expectation for workers, '0' means don't test */
+	set_expected_val((void *)data->test_pages, exp1, WORKER_VCPU_ID_1);
+	set_expected_val((void *)data->test_pages, exp2, WORKER_VCPU_ID_2);
+
+	/* Make sure workers have enough time to test */
+	do_delay();
+}
+
+#define TESTVAL1 0x0101010101010101
+#define TESTVAL2 0x0202020202020202
+
+/* Main vCPU doing the test */
+static void sender_guest_code(vm_vaddr_t test_data)
+{
+	struct test_data *data = (struct test_data *)test_data;
+	struct hv_tlb_flush *flush = (struct hv_tlb_flush *)data->hcall_gva;
+	struct hv_tlb_flush_ex *flush_ex = (struct hv_tlb_flush_ex *)data->hcall_gva;
+	vm_paddr_t hcall_gpa = data->hcall_gpa;
+	int i, stage = 1;
+
+	wrmsr(HV_X64_MSR_GUEST_OS_ID, HYPERV_LINUX_OS_ID);
+	wrmsr(HV_X64_MSR_HYPERCALL, data->hcall_gpa);
+
+	/* "Slow" hypercalls */
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE for WORKER_VCPU_ID_1 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush->processor_mask = BIT(WORKER_VCPU_ID_1);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE, hcall_gpa,
+				 hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2, 0x0);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST for WORKER_VCPU_ID_1 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush->processor_mask = BIT(WORKER_VCPU_ID_1);
+		flush->gva_list[0] = (u64)data->test_pages;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2, 0x0);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE for HV_FLUSH_ALL_PROCESSORS */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+			HV_FLUSH_ALL_PROCESSORS;
+		flush->processor_mask = 0;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE, hcall_gpa,
+				 hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST for HV_FLUSH_ALL_PROCESSORS */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+			HV_FLUSH_ALL_PROCESSORS;
+		flush->gva_list[0] = (u64)data->test_pages;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for WORKER_VCPU_ID_2 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX |
+				 (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, 0x0, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for WORKER_VCPU_ID_2 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		/* bank_contents and gva_list occupy the same space, thus [1] */
+		flush_ex->gva_list[1] = (u64)data->test_pages;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 (1 << HV_HYPERCALL_VARHEAD_OFFSET) |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, 0x0, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for both vCPUs */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64) |
+			BIT_ULL(WORKER_VCPU_ID_1 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_1 % 64);
+		flush_ex->hv_vp_set.bank_contents[1] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX |
+				 (2 << HV_HYPERCALL_VARHEAD_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for both vCPUs */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_1 / 64) |
+			BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_1 % 64);
+		flush_ex->hv_vp_set.bank_contents[1] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		/* bank_contents and gva_list occupy the same space, thus [2] */
+		flush_ex->gva_list[2] = (u64)data->test_pages;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 (2 << HV_HYPERCALL_VARHEAD_OFFSET) |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for HV_GENERIC_SET_ALL */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_ALL;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for HV_GENERIC_SET_ALL */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_ALL;
+		flush_ex->gva_list[0] = (u64)data->test_pages;
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 hcall_gpa, hcall_gpa + PAGE_SIZE);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	/* "Fast" hypercalls */
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE for WORKER_VCPU_ID_1 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->processor_mask = BIT(WORKER_VCPU_ID_1);
+		hyperv_write_xmm_input(&flush->processor_mask, 1);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE |
+				 HV_HYPERCALL_FAST_BIT, 0x0,
+				 HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2, 0x0);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST for WORKER_VCPU_ID_1 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->processor_mask = BIT(WORKER_VCPU_ID_1);
+		flush->gva_list[0] = (u64)data->test_pages;
+		hyperv_write_xmm_input(&flush->processor_mask, 1);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST |
+				 HV_HYPERCALL_FAST_BIT |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2, 0x0);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE for HV_FLUSH_ALL_PROCESSORS */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		hyperv_write_xmm_input(&flush->processor_mask, 1);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE |
+				 HV_HYPERCALL_FAST_BIT, 0x0,
+				 HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+				 HV_FLUSH_ALL_PROCESSORS);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST for HV_FLUSH_ALL_PROCESSORS */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush->gva_list[0] = (u64)data->test_pages;
+		hyperv_write_xmm_input(&flush->processor_mask, 1);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST |
+				 HV_HYPERCALL_FAST_BIT |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET), 0x0,
+				 HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES |
+				 HV_FLUSH_ALL_PROCESSORS);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for WORKER_VCPU_ID_2 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 2);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX |
+				 HV_HYPERCALL_FAST_BIT |
+				 (1 << HV_HYPERCALL_VARHEAD_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, 0x0, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for WORKER_VCPU_ID_2 */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		/* bank_contents and gva_list occupy the same space, thus [1] */
+		flush_ex->gva_list[1] = (u64)data->test_pages;
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 2);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 HV_HYPERCALL_FAST_BIT |
+				 (1 << HV_HYPERCALL_VARHEAD_OFFSET) |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, 0x0, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for both vCPUs */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_2 / 64) |
+			BIT_ULL(WORKER_VCPU_ID_1 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_1 % 64);
+		flush_ex->hv_vp_set.bank_contents[1] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 2);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX |
+				 HV_HYPERCALL_FAST_BIT |
+				 (2 << HV_HYPERCALL_VARHEAD_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 :
+			  TESTVAL2, i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for both vCPUs */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+		flush_ex->hv_vp_set.valid_bank_mask = BIT_ULL(WORKER_VCPU_ID_1 / 64) |
+			BIT_ULL(WORKER_VCPU_ID_2 / 64);
+		flush_ex->hv_vp_set.bank_contents[0] = BIT_ULL(WORKER_VCPU_ID_1 % 64);
+		flush_ex->hv_vp_set.bank_contents[1] = BIT_ULL(WORKER_VCPU_ID_2 % 64);
+		/* bank_contents and gva_list occupy the same space, thus [2] */
+		flush_ex->gva_list[2] = (u64)data->test_pages;
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 3);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 HV_HYPERCALL_FAST_BIT |
+				 (2 << HV_HYPERCALL_VARHEAD_OFFSET) |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX for HV_GENERIC_SET_ALL */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_ALL;
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 2);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX |
+				 HV_HYPERCALL_FAST_BIT,
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_SYNC(stage++);
+
+	/* HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX for HV_GENERIC_SET_ALL */
+	for (i = 0; i < NTRY; i++) {
+		prepare_to_test(data);
+		flush_ex->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+		flush_ex->hv_vp_set.format = HV_GENERIC_SET_ALL;
+		flush_ex->gva_list[0] = (u64)data->test_pages;
+		hyperv_write_xmm_input(&flush_ex->hv_vp_set, 2);
+		hyperv_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX |
+				 HV_HYPERCALL_FAST_BIT |
+				 (1UL << HV_HYPERCALL_REP_COMP_OFFSET),
+				 0x0, HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES);
+		post_test(data, i % 2 ? TESTVAL1 : TESTVAL2,
+			  i % 2 ? TESTVAL1 : TESTVAL2);
+	}
+
+	GUEST_DONE();
+}
+
+static void *vcpu_thread(void *arg)
+{
+	struct kvm_vcpu *vcpu = (struct kvm_vcpu *)arg;
+	struct ucall uc;
+	int old;
+	int r;
+
+	r = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old);
+	TEST_ASSERT(!r, "pthread_setcanceltype failed on vcpu_id=%u with errno=%d",
+		    vcpu->id, r);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		/* NOT REACHED */
+	default:
+		TEST_FAIL("Unexpected ucall %lu, vCPU %d", uc.cmd, vcpu->id);
+	}
+
+	return NULL;
+}
+
+static void cancel_join_vcpu_thread(pthread_t thread, struct kvm_vcpu *vcpu)
+{
+	void *retval;
+	int r;
+
+	r = pthread_cancel(thread);
+	TEST_ASSERT(!r, "pthread_cancel on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+
+	r = pthread_join(thread, &retval);
+	TEST_ASSERT(!r, "pthread_join on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+	TEST_ASSERT(retval == PTHREAD_CANCELED,
+		    "expected retval=%p, got %p", PTHREAD_CANCELED,
+		    retval);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu[3];
+	pthread_t threads[2];
+	vm_vaddr_t test_data_page, gva;
+	vm_paddr_t gpa;
+	uint64_t *pte;
+	struct test_data *data;
+	struct ucall uc;
+	int stage = 1, r, i;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_HYPERV_TLBFLUSH));
+
+	vm = vm_create_with_one_vcpu(&vcpu[0], sender_guest_code);
+
+	/* Test data page */
+	test_data_page = vm_vaddr_alloc_page(vm);
+	data = (struct test_data *)addr_gva2hva(vm, test_data_page);
+
+	/* Hypercall input/output */
+	data->hcall_gva = vm_vaddr_alloc_pages(vm, 2);
+	data->hcall_gpa = addr_gva2gpa(vm, data->hcall_gva);
+	memset(addr_gva2hva(vm, data->hcall_gva), 0x0, 2 * PAGE_SIZE);
+
+	/*
+	 * Test pages: the first one is filled with '0x01's, the second with '0x02's
+	 * and the test will swap their mappings. The third page keeps the indication
+	 * about the current state of mappings.
+	 */
+	data->test_pages = vm_vaddr_alloc_pages(vm, NTEST_PAGES + 1);
+	for (i = 0; i < NTEST_PAGES; i++)
+		memset(addr_gva2hva(vm, data->test_pages + PAGE_SIZE * i),
+		       (u8)(i + 1), PAGE_SIZE);
+	set_expected_val(addr_gva2hva(vm, data->test_pages), 0x0, WORKER_VCPU_ID_1);
+	set_expected_val(addr_gva2hva(vm, data->test_pages), 0x0, WORKER_VCPU_ID_2);
+
+	/*
+	 * Get PTE pointers for test pages and map them inside the guest.
+	 * Use separate page for each PTE for simplicity.
+	 */
+	gva = vm_vaddr_unused_gap(vm, NTEST_PAGES * PAGE_SIZE, KVM_UTIL_MIN_VADDR);
+	for (i = 0; i < NTEST_PAGES; i++) {
+		pte = vm_get_page_table_entry(vm, data->test_pages + i * PAGE_SIZE);
+		gpa = addr_hva2gpa(vm, pte);
+		virt_pg_map(vm, gva + PAGE_SIZE * i, gpa & PAGE_MASK);
+		data->test_pages_pte[i] = gva + (gpa & ~PAGE_MASK);
+	}
+
+	/*
+	 * Sender vCPU which performs the test: swaps test pages, sets expectation
+	 * for 'workers' and issues TLB flush hypercalls.
+	 */
+	vcpu_args_set(vcpu[0], 1, test_data_page);
+	vcpu_set_hv_cpuid(vcpu[0]);
+
+	/* Create worker vCPUs which check the contents of the test pages */
+	vcpu[1] = vm_vcpu_add(vm, WORKER_VCPU_ID_1, worker_guest_code);
+	vcpu_args_set(vcpu[1], 1, test_data_page);
+	vcpu_set_msr(vcpu[1], HV_X64_MSR_VP_INDEX, WORKER_VCPU_ID_1);
+	vcpu_set_hv_cpuid(vcpu[1]);
+
+	vcpu[2] = vm_vcpu_add(vm, WORKER_VCPU_ID_2, worker_guest_code);
+	vcpu_args_set(vcpu[2], 1, test_data_page);
+	vcpu_set_msr(vcpu[2], HV_X64_MSR_VP_INDEX, WORKER_VCPU_ID_2);
+	vcpu_set_hv_cpuid(vcpu[2]);
+
+	r = pthread_create(&threads[0], NULL, vcpu_thread, vcpu[1]);
+	TEST_ASSERT(!r, "pthread_create() failed");
+
+	r = pthread_create(&threads[1], NULL, vcpu_thread, vcpu[2]);
+	TEST_ASSERT(!r, "pthread_create() failed");
+
+	while (true) {
+		vcpu_run(vcpu[0]);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu[0], KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu[0], &uc)) {
+		case UCALL_SYNC:
+			TEST_ASSERT(uc.args[1] == stage,
+				    "Unexpected stage: %ld (%d expected)",
+				    uc.args[1], stage);
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		stage++;
+	}
+
+done:
+	cancel_join_vcpu_thread(threads[0], vcpu[1]);
+	cancel_join_vcpu_thread(threads[1], vcpu[2]);
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/kvm_buslock_test.c b/tools/testing/selftests/kvm/x86/kvm_buslock_test.c
new file mode 100644
index 000000000000..d88500c118eb
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/kvm_buslock_test.c
@@ -0,0 +1,135 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024 Advanced Micro Devices, Inc.
+ */
+#include <linux/atomic.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "vmx.h"
+#include "test_util.h"
+
+#define NR_BUS_LOCKS_PER_LEVEL 100
+#define CACHE_LINE_SIZE		64
+
+/*
+ * To generate a bus lock, carve out a buffer that precisely occupies two cache
+ * lines and perform an atomic access that splits the two lines.
+ */
+static u8 buffer[CACHE_LINE_SIZE * 2] __aligned(CACHE_LINE_SIZE);
+static atomic_t *val = (void *)&buffer[CACHE_LINE_SIZE - (sizeof(*val) / 2)];
+
+static void guest_generate_buslocks(void)
+{
+	for (int i = 0; i < NR_BUS_LOCKS_PER_LEVEL; i++)
+		atomic_inc(val);
+}
+
+#define L2_GUEST_STACK_SIZE	64
+
+static void l2_guest_code(void)
+{
+	guest_generate_buslocks();
+	GUEST_DONE();
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	generic_svm_setup(svm, l2_guest_code, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	run_guest(vmcb, svm->vmcb_gpa);
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT_EQ(prepare_for_vmx_operation(vmx), true);
+	GUEST_ASSERT_EQ(load_vmcs(vmx), true);
+
+	prepare_vmcs(vmx, NULL, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_ASSERT(!vmwrite(GUEST_RIP, (u64)l2_guest_code));
+	GUEST_ASSERT(!vmlaunch());
+}
+
+static void guest_code(void *test_data)
+{
+	guest_generate_buslocks();
+
+	if (this_cpu_has(X86_FEATURE_SVM))
+		l1_svm_code(test_data);
+	else if (this_cpu_has(X86_FEATURE_VMX))
+		l1_vmx_code(test_data);
+	else
+		GUEST_DONE();
+
+	TEST_FAIL("L2 should have signaled 'done'");
+}
+
+int main(int argc, char *argv[])
+{
+	const bool has_nested = kvm_cpu_has(X86_FEATURE_SVM) || kvm_cpu_has(X86_FEATURE_VMX);
+	vm_vaddr_t nested_test_data_gva;
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	int i, bus_locks = 0;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_X86_BUS_LOCK_EXIT));
+
+	vm = vm_create(1);
+	vm_enable_cap(vm, KVM_CAP_X86_BUS_LOCK_EXIT, KVM_BUS_LOCK_DETECTION_EXIT);
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+
+	if (kvm_cpu_has(X86_FEATURE_SVM))
+		vcpu_alloc_svm(vm, &nested_test_data_gva);
+	else
+		vcpu_alloc_vmx(vm, &nested_test_data_gva);
+
+	vcpu_args_set(vcpu, 1, nested_test_data_gva);
+
+	run = vcpu->run;
+
+	for (i = 0; i <= NR_BUS_LOCKS_PER_LEVEL * (1 + has_nested); i++) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+
+		if (run->exit_reason == KVM_EXIT_IO) {
+			switch (get_ucall(vcpu, &uc)) {
+			case UCALL_ABORT:
+				REPORT_GUEST_ASSERT(uc);
+				goto done;
+			case UCALL_SYNC:
+				continue;
+			case UCALL_DONE:
+				goto done;
+			default:
+				TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+			}
+		}
+
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_X86_BUS_LOCK);
+
+		/*
+		 * Verify the counter is actually getting incremented, e.g. that
+		 * KVM isn't skipping the instruction.  On Intel, the exit is
+		 * trap-like, i.e. the counter should already have been
+		 * incremented.  On AMD, it's fault-like, i.e. the counter will
+		 * be incremented when the guest re-executes the instruction.
+		 */
+		sync_global_from_guest(vm, *val);
+		TEST_ASSERT_EQ(atomic_read(val), bus_locks + host_cpu_is_intel);
+
+		bus_locks++;
+	}
+	TEST_FAIL("Didn't receive UCALL_DONE, took %u bus lock exits\n", bus_locks);
+done:
+	TEST_ASSERT_EQ(i, bus_locks);
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/kvm_clock_test.c b/tools/testing/selftests/kvm/x86/kvm_clock_test.c
new file mode 100644
index 000000000000..5bc12222d87a
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/kvm_clock_test.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021, Google LLC.
+ *
+ * Tests for adjusting the KVM clock from userspace
+ */
+#include <asm/kvm_para.h>
+#include <asm/pvclock.h>
+#include <asm/pvclock-abi.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <time.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+struct test_case {
+	uint64_t kvmclock_base;
+	int64_t realtime_offset;
+};
+
+static struct test_case test_cases[] = {
+	{ .kvmclock_base = 0 },
+	{ .kvmclock_base = 180 * NSEC_PER_SEC },
+	{ .kvmclock_base = 0, .realtime_offset = -180 * NSEC_PER_SEC },
+	{ .kvmclock_base = 0, .realtime_offset = 180 * NSEC_PER_SEC },
+};
+
+#define GUEST_SYNC_CLOCK(__stage, __val)			\
+		GUEST_SYNC_ARGS(__stage, __val, 0, 0, 0)
+
+static void guest_main(vm_paddr_t pvti_pa, struct pvclock_vcpu_time_info *pvti)
+{
+	int i;
+
+	wrmsr(MSR_KVM_SYSTEM_TIME_NEW, pvti_pa | KVM_MSR_ENABLED);
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++)
+		GUEST_SYNC_CLOCK(i, __pvclock_read_cycles(pvti, rdtsc()));
+}
+
+#define EXPECTED_FLAGS (KVM_CLOCK_REALTIME | KVM_CLOCK_HOST_TSC)
+
+static inline void assert_flags(struct kvm_clock_data *data)
+{
+	TEST_ASSERT((data->flags & EXPECTED_FLAGS) == EXPECTED_FLAGS,
+		    "unexpected clock data flags: %x (want set: %x)",
+		    data->flags, EXPECTED_FLAGS);
+}
+
+static void handle_sync(struct ucall *uc, struct kvm_clock_data *start,
+			struct kvm_clock_data *end)
+{
+	uint64_t obs, exp_lo, exp_hi;
+
+	obs = uc->args[2];
+	exp_lo = start->clock;
+	exp_hi = end->clock;
+
+	assert_flags(start);
+	assert_flags(end);
+
+	TEST_ASSERT(exp_lo <= obs && obs <= exp_hi,
+		    "unexpected kvm-clock value: %"PRIu64" expected range: [%"PRIu64", %"PRIu64"]",
+		    obs, exp_lo, exp_hi);
+
+	pr_info("kvm-clock value: %"PRIu64" expected range [%"PRIu64", %"PRIu64"]\n",
+		obs, exp_lo, exp_hi);
+}
+
+static void handle_abort(struct ucall *uc)
+{
+	REPORT_GUEST_ASSERT(*uc);
+}
+
+static void setup_clock(struct kvm_vm *vm, struct test_case *test_case)
+{
+	struct kvm_clock_data data;
+
+	memset(&data, 0, sizeof(data));
+
+	data.clock = test_case->kvmclock_base;
+	if (test_case->realtime_offset) {
+		struct timespec ts;
+		int r;
+
+		data.flags |= KVM_CLOCK_REALTIME;
+		do {
+			r = clock_gettime(CLOCK_REALTIME, &ts);
+			if (!r)
+				break;
+		} while (errno == EINTR);
+
+		TEST_ASSERT(!r, "clock_gettime() failed: %d", r);
+
+		data.realtime = ts.tv_sec * NSEC_PER_SEC;
+		data.realtime += ts.tv_nsec;
+		data.realtime += test_case->realtime_offset;
+	}
+
+	vm_ioctl(vm, KVM_SET_CLOCK, &data);
+}
+
+static void enter_guest(struct kvm_vcpu *vcpu)
+{
+	struct kvm_clock_data start, end;
+	struct kvm_vm *vm = vcpu->vm;
+	struct ucall uc;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++) {
+		setup_clock(vm, &test_cases[i]);
+
+		vm_ioctl(vm, KVM_GET_CLOCK, &start);
+
+		vcpu_run(vcpu);
+		vm_ioctl(vm, KVM_GET_CLOCK, &end);
+
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			handle_sync(&uc, &start, &end);
+			break;
+		case UCALL_ABORT:
+			handle_abort(&uc);
+			return;
+		default:
+			TEST_ASSERT(0, "unhandled ucall: %ld", uc.cmd);
+		}
+	}
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	vm_vaddr_t pvti_gva;
+	vm_paddr_t pvti_gpa;
+	struct kvm_vm *vm;
+	int flags;
+
+	flags = kvm_check_cap(KVM_CAP_ADJUST_CLOCK);
+	TEST_REQUIRE(flags & KVM_CLOCK_REALTIME);
+
+	TEST_REQUIRE(sys_clocksource_is_based_on_tsc());
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+
+	pvti_gva = vm_vaddr_alloc(vm, getpagesize(), 0x10000);
+	pvti_gpa = addr_gva2gpa(vm, pvti_gva);
+	vcpu_args_set(vcpu, 2, pvti_gpa, pvti_gva);
+
+	enter_guest(vcpu);
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/kvm_pv_test.c b/tools/testing/selftests/kvm/x86/kvm_pv_test.c
new file mode 100644
index 000000000000..1b805cbdb47b
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/kvm_pv_test.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020, Google LLC.
+ *
+ * Tests for KVM paravirtual feature disablement
+ */
+#include <asm/kvm_para.h>
+#include <linux/kvm_para.h>
+#include <stdint.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+struct msr_data {
+	uint32_t idx;
+	const char *name;
+};
+
+#define TEST_MSR(msr) { .idx = msr, .name = #msr }
+#define UCALL_PR_MSR 0xdeadbeef
+#define PR_MSR(msr) ucall(UCALL_PR_MSR, 1, msr)
+
+/*
+ * KVM paravirtual msrs to test. Expect a #GP if any of these msrs are read or
+ * written, as the KVM_CPUID_FEATURES leaf is cleared.
+ */
+static struct msr_data msrs_to_test[] = {
+	TEST_MSR(MSR_KVM_SYSTEM_TIME),
+	TEST_MSR(MSR_KVM_SYSTEM_TIME_NEW),
+	TEST_MSR(MSR_KVM_WALL_CLOCK),
+	TEST_MSR(MSR_KVM_WALL_CLOCK_NEW),
+	TEST_MSR(MSR_KVM_ASYNC_PF_EN),
+	TEST_MSR(MSR_KVM_STEAL_TIME),
+	TEST_MSR(MSR_KVM_PV_EOI_EN),
+	TEST_MSR(MSR_KVM_POLL_CONTROL),
+	TEST_MSR(MSR_KVM_ASYNC_PF_INT),
+	TEST_MSR(MSR_KVM_ASYNC_PF_ACK),
+};
+
+static void test_msr(struct msr_data *msr)
+{
+	uint64_t ignored;
+	uint8_t vector;
+
+	PR_MSR(msr);
+
+	vector = rdmsr_safe(msr->idx, &ignored);
+	GUEST_ASSERT_EQ(vector, GP_VECTOR);
+
+	vector = wrmsr_safe(msr->idx, 0);
+	GUEST_ASSERT_EQ(vector, GP_VECTOR);
+}
+
+struct hcall_data {
+	uint64_t nr;
+	const char *name;
+};
+
+#define TEST_HCALL(hc) { .nr = hc, .name = #hc }
+#define UCALL_PR_HCALL 0xdeadc0de
+#define PR_HCALL(hc) ucall(UCALL_PR_HCALL, 1, hc)
+
+/*
+ * KVM hypercalls to test. Expect -KVM_ENOSYS when called, as the corresponding
+ * features have been cleared in KVM_CPUID_FEATURES.
+ */
+static struct hcall_data hcalls_to_test[] = {
+	TEST_HCALL(KVM_HC_KICK_CPU),
+	TEST_HCALL(KVM_HC_SEND_IPI),
+	TEST_HCALL(KVM_HC_SCHED_YIELD),
+};
+
+static void test_hcall(struct hcall_data *hc)
+{
+	uint64_t r;
+
+	PR_HCALL(hc);
+	r = kvm_hypercall(hc->nr, 0, 0, 0, 0);
+	GUEST_ASSERT_EQ(r, -KVM_ENOSYS);
+}
+
+static void guest_main(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(msrs_to_test); i++) {
+		test_msr(&msrs_to_test[i]);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(hcalls_to_test); i++) {
+		test_hcall(&hcalls_to_test[i]);
+	}
+
+	GUEST_DONE();
+}
+
+static void pr_msr(struct ucall *uc)
+{
+	struct msr_data *msr = (struct msr_data *)uc->args[0];
+
+	pr_info("testing msr: %s (%#x)\n", msr->name, msr->idx);
+}
+
+static void pr_hcall(struct ucall *uc)
+{
+	struct hcall_data *hc = (struct hcall_data *)uc->args[0];
+
+	pr_info("testing hcall: %s (%lu)\n", hc->name, hc->nr);
+}
+
+static void enter_guest(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	while (true) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_PR_MSR:
+			pr_msr(&uc);
+			break;
+		case UCALL_PR_HCALL:
+			pr_hcall(&uc);
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			return;
+		case UCALL_DONE:
+			return;
+		}
+	}
+}
+
+static void test_pv_unhalt(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct kvm_cpuid_entry2 *ent;
+	u32 kvm_sig_old;
+	int r;
+
+	if (!(kvm_check_cap(KVM_CAP_X86_DISABLE_EXITS) & KVM_X86_DISABLE_EXITS_HLT))
+		return;
+
+	pr_info("testing KVM_FEATURE_PV_UNHALT\n");
+
+	/* KVM_PV_UNHALT test */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+	vcpu_set_cpuid_feature(vcpu, X86_FEATURE_KVM_PV_UNHALT);
+
+	TEST_ASSERT(vcpu_cpuid_has(vcpu, X86_FEATURE_KVM_PV_UNHALT),
+		    "Enabling X86_FEATURE_KVM_PV_UNHALT had no effect");
+
+	/* Verify KVM disallows disabling exits after vCPU creation. */
+	r = __vm_enable_cap(vm, KVM_CAP_X86_DISABLE_EXITS, KVM_X86_DISABLE_EXITS_HLT);
+	TEST_ASSERT(r && errno == EINVAL,
+		    "Disabling exits after vCPU creation didn't fail as expected");
+
+	kvm_vm_free(vm);
+
+	/* Verify that KVM clear PV_UNHALT from guest CPUID. */
+	vm = vm_create(1);
+	vm_enable_cap(vm, KVM_CAP_X86_DISABLE_EXITS, KVM_X86_DISABLE_EXITS_HLT);
+
+	vcpu = vm_vcpu_add(vm, 0, NULL);
+	TEST_ASSERT(!vcpu_cpuid_has(vcpu, X86_FEATURE_KVM_PV_UNHALT),
+		    "vCPU created with PV_UNHALT set by default");
+
+	vcpu_set_cpuid_feature(vcpu, X86_FEATURE_KVM_PV_UNHALT);
+	TEST_ASSERT(!vcpu_cpuid_has(vcpu, X86_FEATURE_KVM_PV_UNHALT),
+		    "PV_UNHALT set in guest CPUID when HLT-exiting is disabled");
+
+	/*
+	 * Clobber the KVM PV signature and verify KVM does NOT clear PV_UNHALT
+	 * when KVM PV is not present, and DOES clear PV_UNHALT when switching
+	 * back to the correct signature..
+	 */
+	ent = vcpu_get_cpuid_entry(vcpu, KVM_CPUID_SIGNATURE);
+	kvm_sig_old = ent->ebx;
+	ent->ebx = 0xdeadbeef;
+	vcpu_set_cpuid(vcpu);
+
+	vcpu_set_cpuid_feature(vcpu, X86_FEATURE_KVM_PV_UNHALT);
+	TEST_ASSERT(vcpu_cpuid_has(vcpu, X86_FEATURE_KVM_PV_UNHALT),
+		    "PV_UNHALT cleared when using bogus KVM PV signature");
+
+	ent = vcpu_get_cpuid_entry(vcpu, KVM_CPUID_SIGNATURE);
+	ent->ebx = kvm_sig_old;
+	vcpu_set_cpuid(vcpu);
+
+	TEST_ASSERT(!vcpu_cpuid_has(vcpu, X86_FEATURE_KVM_PV_UNHALT),
+		    "PV_UNHALT set in guest CPUID when HLT-exiting is disabled");
+
+	/* FIXME: actually test KVM_FEATURE_PV_UNHALT feature */
+
+	kvm_vm_free(vm);
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_ENFORCE_PV_FEATURE_CPUID));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_main);
+
+	vcpu_enable_cap(vcpu, KVM_CAP_ENFORCE_PV_FEATURE_CPUID, 1);
+
+	vcpu_clear_cpuid_entry(vcpu, KVM_CPUID_FEATURES);
+
+	enter_guest(vcpu);
+	kvm_vm_free(vm);
+
+	test_pv_unhalt();
+}
diff --git a/tools/testing/selftests/kvm/x86/max_vcpuid_cap_test.c b/tools/testing/selftests/kvm/x86/max_vcpuid_cap_test.c
new file mode 100644
index 000000000000..7e2bfb3c3f3b
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/max_vcpuid_cap_test.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * maximum APIC ID capability tests
+ *
+ * Copyright (C) 2022, Intel, Inc.
+ *
+ * Tests for getting/setting maximum APIC ID capability
+ */
+
+#include "kvm_util.h"
+
+#define MAX_VCPU_ID	2
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	int ret;
+
+	vm = vm_create_barebones();
+
+	/* Get KVM_CAP_MAX_VCPU_ID cap supported in KVM */
+	ret = vm_check_cap(vm, KVM_CAP_MAX_VCPU_ID);
+
+	/* Try to set KVM_CAP_MAX_VCPU_ID beyond KVM cap */
+	ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, ret + 1);
+	TEST_ASSERT(ret < 0,
+		    "Setting KVM_CAP_MAX_VCPU_ID beyond KVM cap should fail");
+
+	/* Test BOOT_CPU_ID interaction (MAX_VCPU_ID cannot be lower) */
+	if (kvm_has_cap(KVM_CAP_SET_BOOT_CPU_ID)) {
+		vm_ioctl(vm, KVM_SET_BOOT_CPU_ID, (void *)MAX_VCPU_ID);
+
+		/* Try setting KVM_CAP_MAX_VCPU_ID below BOOT_CPU_ID */
+		ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID - 1);
+		TEST_ASSERT(ret < 0,
+			    "Setting KVM_CAP_MAX_VCPU_ID below BOOT_CPU_ID should fail");
+	}
+
+	/* Set KVM_CAP_MAX_VCPU_ID */
+	vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID);
+
+	/* Try to set KVM_CAP_MAX_VCPU_ID again */
+	ret = __vm_enable_cap(vm, KVM_CAP_MAX_VCPU_ID, MAX_VCPU_ID + 1);
+	TEST_ASSERT(ret < 0,
+		    "Setting KVM_CAP_MAX_VCPU_ID multiple times should fail");
+
+	/* Create vCPU with id beyond KVM_CAP_MAX_VCPU_ID cap */
+	ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)MAX_VCPU_ID);
+	TEST_ASSERT(ret < 0, "Creating vCPU with ID > MAX_VCPU_ID should fail");
+
+	/* Create vCPU with bits 63:32 != 0, but an otherwise valid id */
+	ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)(1L << 32));
+	TEST_ASSERT(ret < 0, "Creating vCPU with ID[63:32] != 0 should fail");
+
+	/* Create vCPU with id within bounds */
+	ret = __vm_ioctl(vm, KVM_CREATE_VCPU, (void *)0);
+	TEST_ASSERT(ret >= 0, "Creating vCPU with ID 0 should succeed");
+
+	close(ret);
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/monitor_mwait_test.c b/tools/testing/selftests/kvm/x86/monitor_mwait_test.c
new file mode 100644
index 000000000000..e45c028d2a7e
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/monitor_mwait_test.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "kselftest.h"
+
+#define CPUID_MWAIT (1u << 3)
+
+enum monitor_mwait_testcases {
+	MWAIT_QUIRK_DISABLED = BIT(0),
+	MISC_ENABLES_QUIRK_DISABLED = BIT(1),
+	MWAIT_DISABLED = BIT(2),
+	CPUID_DISABLED = BIT(3),
+	TEST_MAX = CPUID_DISABLED * 2 - 1,
+};
+
+/*
+ * If both MWAIT and its quirk are disabled, MONITOR/MWAIT should #UD, in all
+ * other scenarios KVM should emulate them as nops.
+ */
+#define GUEST_ASSERT_MONITOR_MWAIT(insn, testcase, vector)		\
+do {									\
+	bool fault_wanted = ((testcase) & MWAIT_QUIRK_DISABLED) &&	\
+			    ((testcase) & MWAIT_DISABLED);		\
+									\
+	if (fault_wanted)						\
+		__GUEST_ASSERT((vector) == UD_VECTOR,			\
+			       "Expected #UD on " insn " for testcase '0x%x', got %s", \
+			       testcase, ex_str(vector));		\
+	else								\
+		__GUEST_ASSERT(!(vector),				\
+			       "Expected success on " insn " for testcase '0x%x', got %s", \
+			       testcase, ex_str(vector));		\
+} while (0)
+
+static void guest_monitor_wait(void *arg)
+{
+	int testcase = (int) (long) arg;
+	u8 vector;
+
+	u64 val = rdmsr(MSR_IA32_MISC_ENABLE) & ~MSR_IA32_MISC_ENABLE_MWAIT;
+	if (!(testcase & MWAIT_DISABLED))
+		val |= MSR_IA32_MISC_ENABLE_MWAIT;
+	wrmsr(MSR_IA32_MISC_ENABLE, val);
+
+	__GUEST_ASSERT(this_cpu_has(X86_FEATURE_MWAIT) == !(testcase & MWAIT_DISABLED),
+		       "Expected CPUID.MWAIT %s\n",
+		       (testcase & MWAIT_DISABLED) ? "cleared" : "set");
+
+	/*
+	 * Arbitrarily MONITOR this function, SVM performs fault checks before
+	 * intercept checks, so the inputs for MONITOR and MWAIT must be valid.
+	 */
+	vector = kvm_asm_safe("monitor", "a"(guest_monitor_wait), "c"(0), "d"(0));
+	GUEST_ASSERT_MONITOR_MWAIT("MONITOR", testcase, vector);
+
+	vector = kvm_asm_safe("mwait", "a"(guest_monitor_wait), "c"(0), "d"(0));
+	GUEST_ASSERT_MONITOR_MWAIT("MWAIT", testcase, vector);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	uint64_t disabled_quirks;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	int testcase;
+	char test[80];
+
+	TEST_REQUIRE(this_cpu_has(X86_FEATURE_MWAIT));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_DISABLE_QUIRKS2));
+
+	ksft_print_header();
+	ksft_set_plan(12);
+	for (testcase = 0; testcase <= TEST_MAX; testcase++) {
+		vm = vm_create_with_one_vcpu(&vcpu, guest_monitor_wait);
+		vcpu_args_set(vcpu, 1, (void *)(long)testcase);
+
+		disabled_quirks = 0;
+		if (testcase & MWAIT_QUIRK_DISABLED) {
+			disabled_quirks |= KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS;
+			strcpy(test, "MWAIT can fault");
+		} else {
+			strcpy(test, "MWAIT never faults");
+		}
+		if (testcase & MISC_ENABLES_QUIRK_DISABLED) {
+			disabled_quirks |= KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT;
+			strcat(test, ", MISC_ENABLE updates CPUID");
+		} else {
+			strcat(test, ", no CPUID updates");
+		}
+
+		vm_enable_cap(vm, KVM_CAP_DISABLE_QUIRKS2, disabled_quirks);
+
+		if (!(testcase & MISC_ENABLES_QUIRK_DISABLED) &&
+		    (!!(testcase & CPUID_DISABLED) ^ !!(testcase & MWAIT_DISABLED)))
+			continue;
+
+		if (testcase & CPUID_DISABLED) {
+			strcat(test, ", CPUID clear");
+			vcpu_clear_cpuid_feature(vcpu, X86_FEATURE_MWAIT);
+		} else {
+			strcat(test, ", CPUID set");
+			vcpu_set_cpuid_feature(vcpu, X86_FEATURE_MWAIT);
+		}
+
+		if (testcase & MWAIT_DISABLED)
+			strcat(test, ", MWAIT disabled");
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			/* Detected in vcpu_run */
+			break;
+		case UCALL_DONE:
+			ksft_test_result_pass("%s\n", test);
+			break;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+			break;
+		}
+		kvm_vm_free(vm);
+	}
+	ksft_finished();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/msrs_test.c b/tools/testing/selftests/kvm/x86/msrs_test.c
new file mode 100644
index 000000000000..40d918aedce6
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/msrs_test.c
@@ -0,0 +1,489 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <asm/msr-index.h>
+
+#include <stdint.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+
+/* Use HYPERVISOR for MSRs that are emulated unconditionally (as is HYPERVISOR). */
+#define X86_FEATURE_NONE X86_FEATURE_HYPERVISOR
+
+struct kvm_msr {
+	const struct kvm_x86_cpu_feature feature;
+	const struct kvm_x86_cpu_feature feature2;
+	const char *name;
+	const u64 reset_val;
+	const u64 write_val;
+	const u64 rsvd_val;
+	const u32 index;
+	const bool is_kvm_defined;
+};
+
+#define ____MSR_TEST(msr, str, val, rsvd, reset, feat, f2, is_kvm)	\
+{									\
+	.index = msr,							\
+	.name = str,							\
+	.write_val = val,						\
+	.rsvd_val = rsvd,						\
+	.reset_val = reset,						\
+	.feature = X86_FEATURE_ ##feat,					\
+	.feature2 = X86_FEATURE_ ##f2,					\
+	.is_kvm_defined = is_kvm,					\
+}
+
+#define __MSR_TEST(msr, str, val, rsvd, reset, feat)			\
+	____MSR_TEST(msr, str, val, rsvd, reset, feat, feat, false)
+
+#define MSR_TEST_NON_ZERO(msr, val, rsvd, reset, feat)			\
+	__MSR_TEST(msr, #msr, val, rsvd, reset, feat)
+
+#define MSR_TEST(msr, val, rsvd, feat)					\
+	__MSR_TEST(msr, #msr, val, rsvd, 0, feat)
+
+#define MSR_TEST2(msr, val, rsvd, feat, f2)				\
+	____MSR_TEST(msr, #msr, val, rsvd, 0, feat, f2, false)
+
+/*
+ * Note, use a page aligned value for the canonical value so that the value
+ * is compatible with MSRs that use bits 11:0 for things other than addresses.
+ */
+static const u64 canonical_val = 0x123456789000ull;
+
+/*
+ * Arbitrary value with bits set in every byte, but not all bits set.  This is
+ * also a non-canonical value, but that's coincidental (any 64-bit value with
+ * an alternating 0s/1s pattern will be non-canonical).
+ */
+static const u64 u64_val = 0xaaaa5555aaaa5555ull;
+
+#define MSR_TEST_CANONICAL(msr, feat)					\
+	__MSR_TEST(msr, #msr, canonical_val, NONCANONICAL, 0, feat)
+
+#define MSR_TEST_KVM(msr, val, rsvd, feat)				\
+	____MSR_TEST(KVM_REG_ ##msr, #msr, val, rsvd, 0, feat, feat, true)
+
+/*
+ * The main struct must be scoped to a function due to the use of structures to
+ * define features.  For the global structure, allocate enough space for the
+ * foreseeable future without getting too ridiculous, to minimize maintenance
+ * costs (bumping the array size every time an MSR is added is really annoying).
+ */
+static struct kvm_msr msrs[128];
+static int idx;
+
+static bool ignore_unsupported_msrs;
+
+static u64 fixup_rdmsr_val(u32 msr, u64 want)
+{
+	/*
+	 * AMD CPUs drop bits 63:32 on some MSRs that Intel CPUs support.  KVM
+	 * is supposed to emulate that behavior based on guest vendor model
+	 * (which is the same as the host vendor model for this test).
+	 */
+	if (!host_cpu_is_amd)
+		return want;
+
+	switch (msr) {
+	case MSR_IA32_SYSENTER_ESP:
+	case MSR_IA32_SYSENTER_EIP:
+	case MSR_TSC_AUX:
+		return want & GENMASK_ULL(31, 0);
+	default:
+		return want;
+	}
+}
+
+static void __rdmsr(u32 msr, u64 want)
+{
+	u64 val;
+	u8 vec;
+
+	vec = rdmsr_safe(msr, &val);
+	__GUEST_ASSERT(!vec, "Unexpected %s on RDMSR(0x%x)", ex_str(vec), msr);
+
+	__GUEST_ASSERT(val == want, "Wanted 0x%lx from RDMSR(0x%x), got 0x%lx",
+		       want, msr, val);
+}
+
+static void __wrmsr(u32 msr, u64 val)
+{
+	u8 vec;
+
+	vec = wrmsr_safe(msr, val);
+	__GUEST_ASSERT(!vec, "Unexpected %s on WRMSR(0x%x, 0x%lx)",
+		       ex_str(vec), msr, val);
+	__rdmsr(msr, fixup_rdmsr_val(msr, val));
+}
+
+static void guest_test_supported_msr(const struct kvm_msr *msr)
+{
+	__rdmsr(msr->index, msr->reset_val);
+	__wrmsr(msr->index, msr->write_val);
+	GUEST_SYNC(fixup_rdmsr_val(msr->index, msr->write_val));
+
+	__rdmsr(msr->index, msr->reset_val);
+}
+
+static void guest_test_unsupported_msr(const struct kvm_msr *msr)
+{
+	u64 val;
+	u8 vec;
+
+	/*
+	 * KVM's ABI with respect to ignore_msrs is a mess and largely beyond
+	 * repair, just skip the unsupported MSR tests.
+	 */
+	if (ignore_unsupported_msrs)
+		goto skip_wrmsr_gp;
+
+	/*
+	 * {S,U}_CET exist if IBT or SHSTK is supported, but with bits that are
+	 * writable only if their associated feature is supported.  Skip the
+	 * RDMSR #GP test if the secondary feature is supported, but perform
+	 * the WRMSR #GP test as the to-be-written value is tied to the primary
+	 * feature.  For all other MSRs, simply do nothing.
+	 */
+	if (this_cpu_has(msr->feature2)) {
+		if  (msr->index != MSR_IA32_U_CET &&
+		     msr->index != MSR_IA32_S_CET)
+			goto skip_wrmsr_gp;
+
+		goto skip_rdmsr_gp;
+	}
+
+	vec = rdmsr_safe(msr->index, &val);
+	__GUEST_ASSERT(vec == GP_VECTOR, "Wanted #GP on RDMSR(0x%x), got %s",
+		       msr->index, ex_str(vec));
+
+skip_rdmsr_gp:
+	vec = wrmsr_safe(msr->index, msr->write_val);
+	__GUEST_ASSERT(vec == GP_VECTOR, "Wanted #GP on WRMSR(0x%x, 0x%lx), got %s",
+		       msr->index, msr->write_val, ex_str(vec));
+
+skip_wrmsr_gp:
+	GUEST_SYNC(0);
+}
+
+void guest_test_reserved_val(const struct kvm_msr *msr)
+{
+	/* Skip reserved value checks as well, ignore_msrs is trully a mess. */
+	if (ignore_unsupported_msrs)
+		return;
+
+	/*
+	 * If the CPU will truncate the written value (e.g. SYSENTER on AMD),
+	 * expect success and a truncated value, not #GP.
+	 */
+	if (!this_cpu_has(msr->feature) ||
+	    msr->rsvd_val == fixup_rdmsr_val(msr->index, msr->rsvd_val)) {
+		u8 vec = wrmsr_safe(msr->index, msr->rsvd_val);
+
+		__GUEST_ASSERT(vec == GP_VECTOR,
+			       "Wanted #GP on WRMSR(0x%x, 0x%lx), got %s",
+			       msr->index, msr->rsvd_val, ex_str(vec));
+	} else {
+		__wrmsr(msr->index, msr->rsvd_val);
+		__wrmsr(msr->index, msr->reset_val);
+	}
+}
+
+static void guest_main(void)
+{
+	for (;;) {
+		const struct kvm_msr *msr = &msrs[READ_ONCE(idx)];
+
+		if (this_cpu_has(msr->feature))
+			guest_test_supported_msr(msr);
+		else
+			guest_test_unsupported_msr(msr);
+
+		if (msr->rsvd_val)
+			guest_test_reserved_val(msr);
+
+		GUEST_SYNC(msr->reset_val);
+	}
+}
+
+static bool has_one_reg;
+static bool use_one_reg;
+
+#define KVM_X86_MAX_NR_REGS	1
+
+static bool vcpu_has_reg(struct kvm_vcpu *vcpu, u64 reg)
+{
+	struct {
+		struct kvm_reg_list list;
+		u64 regs[KVM_X86_MAX_NR_REGS];
+	} regs = {};
+	int r, i;
+
+	/*
+	 * If KVM_GET_REG_LIST succeeds with n=0, i.e. there are no supported
+	 * regs, then the vCPU obviously doesn't support the reg.
+	 */
+	r = __vcpu_ioctl(vcpu, KVM_GET_REG_LIST, &regs.list);
+	if (!r)
+		return false;
+
+	TEST_ASSERT_EQ(errno, E2BIG);
+
+	/*
+	 * KVM x86 is expected to support enumerating a relative small number
+	 * of regs.  The majority of registers supported by KVM_{G,S}ET_ONE_REG
+	 * are enumerated via other ioctls, e.g. KVM_GET_MSR_INDEX_LIST.  For
+	 * simplicity, hardcode the maximum number of regs and manually update
+	 * the test as necessary.
+	 */
+	TEST_ASSERT(regs.list.n <= KVM_X86_MAX_NR_REGS,
+		    "KVM reports %llu regs, test expects at most %u regs, stale test?",
+		    regs.list.n, KVM_X86_MAX_NR_REGS);
+
+	vcpu_ioctl(vcpu, KVM_GET_REG_LIST, &regs.list);
+	for (i = 0; i < regs.list.n; i++) {
+		if (regs.regs[i] == reg)
+			return true;
+	}
+
+	return false;
+}
+
+static void host_test_kvm_reg(struct kvm_vcpu *vcpu)
+{
+	bool has_reg = vcpu_cpuid_has(vcpu, msrs[idx].feature);
+	u64 reset_val = msrs[idx].reset_val;
+	u64 write_val = msrs[idx].write_val;
+	u64 rsvd_val = msrs[idx].rsvd_val;
+	u32 reg = msrs[idx].index;
+	u64 val;
+	int r;
+
+	if (!use_one_reg)
+		return;
+
+	TEST_ASSERT_EQ(vcpu_has_reg(vcpu, KVM_X86_REG_KVM(reg)), has_reg);
+
+	if (!has_reg) {
+		r = __vcpu_get_reg(vcpu, KVM_X86_REG_KVM(reg), &val);
+		TEST_ASSERT(r && errno == EINVAL,
+			    "Expected failure on get_reg(0x%x)", reg);
+		rsvd_val = 0;
+		goto out;
+	}
+
+	val = vcpu_get_reg(vcpu, KVM_X86_REG_KVM(reg));
+	TEST_ASSERT(val == reset_val, "Wanted 0x%lx from get_reg(0x%x), got 0x%lx",
+		    reset_val, reg, val);
+
+	vcpu_set_reg(vcpu, KVM_X86_REG_KVM(reg), write_val);
+	val = vcpu_get_reg(vcpu, KVM_X86_REG_KVM(reg));
+	TEST_ASSERT(val == write_val, "Wanted 0x%lx from get_reg(0x%x), got 0x%lx",
+		    write_val, reg, val);
+
+out:
+	r = __vcpu_set_reg(vcpu, KVM_X86_REG_KVM(reg), rsvd_val);
+	TEST_ASSERT(r, "Expected failure on set_reg(0x%x, 0x%lx)", reg, rsvd_val);
+}
+
+static void host_test_msr(struct kvm_vcpu *vcpu, u64 guest_val)
+{
+	u64 reset_val = msrs[idx].reset_val;
+	u32 msr = msrs[idx].index;
+	u64 val;
+
+	if (!kvm_cpu_has(msrs[idx].feature))
+		return;
+
+	val = vcpu_get_msr(vcpu, msr);
+	TEST_ASSERT(val == guest_val, "Wanted 0x%lx from get_msr(0x%x), got 0x%lx",
+		    guest_val, msr, val);
+
+	if (use_one_reg)
+		vcpu_set_reg(vcpu, KVM_X86_REG_MSR(msr), reset_val);
+	else
+		vcpu_set_msr(vcpu, msr, reset_val);
+
+	val = vcpu_get_msr(vcpu, msr);
+	TEST_ASSERT(val == reset_val, "Wanted 0x%lx from get_msr(0x%x), got 0x%lx",
+		    reset_val, msr, val);
+
+	if (!has_one_reg)
+		return;
+
+	val = vcpu_get_reg(vcpu, KVM_X86_REG_MSR(msr));
+	TEST_ASSERT(val == reset_val, "Wanted 0x%lx from get_reg(0x%x), got 0x%lx",
+		    reset_val, msr, val);
+}
+
+static void do_vcpu_run(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	for (;;) {
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			host_test_msr(vcpu, uc.args[1]);
+			return;
+		case UCALL_PRINTF:
+			pr_info("%s", uc.buffer);
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		case UCALL_DONE:
+			TEST_FAIL("Unexpected UCALL_DONE");
+		default:
+			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+		}
+	}
+}
+
+static void vcpus_run(struct kvm_vcpu **vcpus, const int NR_VCPUS)
+{
+	int i;
+
+	for (i = 0; i < NR_VCPUS; i++)
+		do_vcpu_run(vcpus[i]);
+}
+
+#define MISC_ENABLES_RESET_VAL (MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL | MSR_IA32_MISC_ENABLE_BTS_UNAVAIL)
+
+static void test_msrs(void)
+{
+	const struct kvm_msr __msrs[] = {
+		MSR_TEST_NON_ZERO(MSR_IA32_MISC_ENABLE,
+				  MISC_ENABLES_RESET_VAL | MSR_IA32_MISC_ENABLE_FAST_STRING,
+				  MSR_IA32_MISC_ENABLE_FAST_STRING, MISC_ENABLES_RESET_VAL, NONE),
+		MSR_TEST_NON_ZERO(MSR_IA32_CR_PAT, 0x07070707, 0, 0x7040600070406, NONE),
+
+		/*
+		 * TSC_AUX is supported if RDTSCP *or* RDPID is supported.  Add
+		 * entries for each features so that TSC_AUX doesn't exists for
+		 * the "unsupported" vCPU, and obviously to test both cases.
+		 */
+		MSR_TEST2(MSR_TSC_AUX, 0x12345678, u64_val, RDTSCP, RDPID),
+		MSR_TEST2(MSR_TSC_AUX, 0x12345678, u64_val, RDPID, RDTSCP),
+
+		MSR_TEST(MSR_IA32_SYSENTER_CS, 0x1234, 0, NONE),
+		/*
+		 * SYSENTER_{ESP,EIP} are technically non-canonical on Intel,
+		 * but KVM doesn't emulate that behavior on emulated writes,
+		 * i.e. this test will observe different behavior if the MSR
+		 * writes are handed by hardware vs. KVM.  KVM's behavior is
+		 * intended (though far from ideal), so don't bother testing
+		 * non-canonical values.
+		 */
+		MSR_TEST(MSR_IA32_SYSENTER_ESP, canonical_val, 0, NONE),
+		MSR_TEST(MSR_IA32_SYSENTER_EIP, canonical_val, 0, NONE),
+
+		MSR_TEST_CANONICAL(MSR_FS_BASE, LM),
+		MSR_TEST_CANONICAL(MSR_GS_BASE, LM),
+		MSR_TEST_CANONICAL(MSR_KERNEL_GS_BASE, LM),
+		MSR_TEST_CANONICAL(MSR_LSTAR, LM),
+		MSR_TEST_CANONICAL(MSR_CSTAR, LM),
+		MSR_TEST(MSR_SYSCALL_MASK, 0xffffffff, 0, LM),
+
+		MSR_TEST2(MSR_IA32_S_CET, CET_SHSTK_EN, CET_RESERVED, SHSTK, IBT),
+		MSR_TEST2(MSR_IA32_S_CET, CET_ENDBR_EN, CET_RESERVED, IBT, SHSTK),
+		MSR_TEST2(MSR_IA32_U_CET, CET_SHSTK_EN, CET_RESERVED, SHSTK, IBT),
+		MSR_TEST2(MSR_IA32_U_CET, CET_ENDBR_EN, CET_RESERVED, IBT, SHSTK),
+		MSR_TEST_CANONICAL(MSR_IA32_PL0_SSP, SHSTK),
+		MSR_TEST(MSR_IA32_PL0_SSP, canonical_val, canonical_val | 1, SHSTK),
+		MSR_TEST_CANONICAL(MSR_IA32_PL1_SSP, SHSTK),
+		MSR_TEST(MSR_IA32_PL1_SSP, canonical_val, canonical_val | 1, SHSTK),
+		MSR_TEST_CANONICAL(MSR_IA32_PL2_SSP, SHSTK),
+		MSR_TEST(MSR_IA32_PL2_SSP, canonical_val, canonical_val | 1, SHSTK),
+		MSR_TEST_CANONICAL(MSR_IA32_PL3_SSP, SHSTK),
+		MSR_TEST(MSR_IA32_PL3_SSP, canonical_val, canonical_val | 1, SHSTK),
+
+		MSR_TEST_KVM(GUEST_SSP, canonical_val, NONCANONICAL, SHSTK),
+	};
+
+	const struct kvm_x86_cpu_feature feat_none = X86_FEATURE_NONE;
+	const struct kvm_x86_cpu_feature feat_lm = X86_FEATURE_LM;
+
+	/*
+	 * Create three vCPUs, but run them on the same task, to validate KVM's
+	 * context switching of MSR state.  Don't pin the task to a pCPU to
+	 * also validate KVM's handling of cross-pCPU migration.  Use the full
+	 * set of features for the first two vCPUs, but clear all features in
+	 * third vCPU in order to test both positive and negative paths.
+	 */
+	const int NR_VCPUS = 3;
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	struct kvm_vm *vm;
+	int i;
+
+	kvm_static_assert(sizeof(__msrs) <= sizeof(msrs));
+	kvm_static_assert(ARRAY_SIZE(__msrs) <= ARRAY_SIZE(msrs));
+	memcpy(msrs, __msrs, sizeof(__msrs));
+
+	ignore_unsupported_msrs = kvm_is_ignore_msrs();
+
+	vm = vm_create_with_vcpus(NR_VCPUS, guest_main, vcpus);
+
+	sync_global_to_guest(vm, msrs);
+	sync_global_to_guest(vm, ignore_unsupported_msrs);
+
+	/*
+	 * Clear features in the "unsupported features" vCPU.  This needs to be
+	 * done before the first vCPU run as KVM's ABI is that guest CPUID is
+	 * immutable once the vCPU has been run.
+	 */
+	for (idx = 0; idx < ARRAY_SIZE(__msrs); idx++) {
+		/*
+		 * Don't clear LM; selftests are 64-bit only, and KVM doesn't
+		 * honor LM=0 for MSRs that are supposed to exist if and only
+		 * if the vCPU is a 64-bit model.  Ditto for NONE; clearing a
+		 * fake feature flag will result in false failures.
+		 */
+		if (memcmp(&msrs[idx].feature, &feat_lm, sizeof(feat_lm)) &&
+		    memcmp(&msrs[idx].feature, &feat_none, sizeof(feat_none)))
+			vcpu_clear_cpuid_feature(vcpus[2], msrs[idx].feature);
+	}
+
+	for (idx = 0; idx < ARRAY_SIZE(__msrs); idx++) {
+		struct kvm_msr *msr = &msrs[idx];
+
+		if (msr->is_kvm_defined) {
+			for (i = 0; i < NR_VCPUS; i++)
+				host_test_kvm_reg(vcpus[i]);
+			continue;
+		}
+
+		/*
+		 * Verify KVM_GET_SUPPORTED_CPUID and KVM_GET_MSR_INDEX_LIST
+		 * are consistent with respect to MSRs whose existence is
+		 * enumerated via CPUID.  Skip the check for FS/GS.base MSRs,
+		 * as they aren't reported in the save/restore list since their
+		 * state is managed via SREGS.
+		 */
+		TEST_ASSERT(msr->index == MSR_FS_BASE || msr->index == MSR_GS_BASE ||
+			    kvm_msr_is_in_save_restore_list(msr->index) ==
+			    (kvm_cpu_has(msr->feature) || kvm_cpu_has(msr->feature2)),
+			    "%s %s in save/restore list, but %s according to CPUID", msr->name,
+			    kvm_msr_is_in_save_restore_list(msr->index) ? "is" : "isn't",
+			    (kvm_cpu_has(msr->feature) || kvm_cpu_has(msr->feature2)) ?
+			    "supported" : "unsupported");
+
+		sync_global_to_guest(vm, idx);
+
+		vcpus_run(vcpus, NR_VCPUS);
+		vcpus_run(vcpus, NR_VCPUS);
+	}
+
+	kvm_vm_free(vm);
+}
+
+int main(void)
+{
+	has_one_reg = kvm_has_cap(KVM_CAP_ONE_REG);
+
+	test_msrs();
+
+	if (has_one_reg) {
+		use_one_reg = true;
+		test_msrs();
+	}
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_close_kvm_test.c b/tools/testing/selftests/kvm/x86/nested_close_kvm_test.c
new file mode 100644
index 000000000000..f001cb836bfa
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_close_kvm_test.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2019, Red Hat, Inc.
+ *
+ * Verify that nothing bad happens if a KVM user exits with open
+ * file descriptors while executing a nested guest.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kselftest.h"
+
+enum {
+	PORT_L0_EXIT = 0x2000,
+};
+
+#define L2_GUEST_STACK_SIZE 64
+
+static void l2_guest_code(void)
+{
+	/* Exit to L0 */
+	asm volatile("inb %%dx, %%al"
+		     : : [port] "d" (PORT_L0_EXIT) : "rax");
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx_pages)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	/* Prepare the VMCS for L2 execution. */
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(0);
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	/* Prepare the VMCB for L2 execution. */
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	run_guest(svm->vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(0);
+}
+
+static void l1_guest_code(void *data)
+{
+	if (this_cpu_has(X86_FEATURE_VMX))
+		l1_vmx_code(data);
+	else
+		l1_svm_code(data);
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t guest_gva;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX) ||
+		     kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	if (kvm_cpu_has(X86_FEATURE_VMX))
+		vcpu_alloc_vmx(vm, &guest_gva);
+	else
+		vcpu_alloc_svm(vm, &guest_gva);
+
+	vcpu_args_set(vcpu, 1, guest_gva);
+
+	for (;;) {
+		volatile struct kvm_run *run = vcpu->run;
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		if (run->io.port == PORT_L0_EXIT)
+			break;
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_emulation_test.c b/tools/testing/selftests/kvm/x86/nested_emulation_test.c
new file mode 100644
index 000000000000..abc824dba04f
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_emulation_test.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+enum {
+	SVM_F,
+	VMX_F,
+	NR_VIRTUALIZATION_FLAVORS,
+};
+
+struct emulated_instruction {
+	const char name[32];
+	uint8_t opcode[15];
+	uint32_t exit_reason[NR_VIRTUALIZATION_FLAVORS];
+};
+
+static struct emulated_instruction instructions[] = {
+	{
+		.name = "pause",
+		.opcode = { 0xf3, 0x90 },
+		.exit_reason = { SVM_EXIT_PAUSE,
+				 EXIT_REASON_PAUSE_INSTRUCTION, }
+	},
+	{
+		.name = "hlt",
+		.opcode = { 0xf4 },
+		.exit_reason = { SVM_EXIT_HLT,
+				 EXIT_REASON_HLT, }
+	},
+};
+
+static uint8_t kvm_fep[] = { 0x0f, 0x0b, 0x6b, 0x76, 0x6d };	/* ud2 ; .ascii "kvm" */
+static uint8_t l2_guest_code[sizeof(kvm_fep) + 15];
+static uint8_t *l2_instruction = &l2_guest_code[sizeof(kvm_fep)];
+
+static uint32_t get_instruction_length(struct emulated_instruction *insn)
+{
+	uint32_t i;
+
+	for (i = 0; i < ARRAY_SIZE(insn->opcode) && insn->opcode[i]; i++)
+		;
+
+	return i;
+}
+
+static void guest_code(void *test_data)
+{
+	int f = this_cpu_has(X86_FEATURE_SVM) ? SVM_F : VMX_F;
+	int i;
+
+	memcpy(l2_guest_code, kvm_fep, sizeof(kvm_fep));
+
+	if (f == SVM_F) {
+		struct svm_test_data *svm = test_data;
+		struct vmcb *vmcb = svm->vmcb;
+
+		generic_svm_setup(svm, NULL, NULL);
+		vmcb->save.idtr.limit = 0;
+		vmcb->save.rip = (u64)l2_guest_code;
+
+		vmcb->control.intercept |= BIT_ULL(INTERCEPT_SHUTDOWN) |
+					   BIT_ULL(INTERCEPT_PAUSE) |
+					   BIT_ULL(INTERCEPT_HLT);
+		vmcb->control.intercept_exceptions = 0;
+	} else {
+		GUEST_ASSERT(prepare_for_vmx_operation(test_data));
+		GUEST_ASSERT(load_vmcs(test_data));
+
+		prepare_vmcs(test_data, NULL, NULL);
+		GUEST_ASSERT(!vmwrite(GUEST_IDTR_LIMIT, 0));
+		GUEST_ASSERT(!vmwrite(GUEST_RIP, (u64)l2_guest_code));
+		GUEST_ASSERT(!vmwrite(EXCEPTION_BITMAP, 0));
+
+		vmwrite(CPU_BASED_VM_EXEC_CONTROL, vmreadz(CPU_BASED_VM_EXEC_CONTROL) |
+						   CPU_BASED_PAUSE_EXITING |
+						   CPU_BASED_HLT_EXITING);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(instructions); i++) {
+		struct emulated_instruction *insn = &instructions[i];
+		uint32_t insn_len = get_instruction_length(insn);
+		uint32_t exit_insn_len;
+		u32 exit_reason;
+
+		/*
+		 * Copy the target instruction to the L2 code stream, and fill
+		 * the remaining bytes with INT3s so that a missed intercept
+		 * results in a consistent failure mode (SHUTDOWN).
+		 */
+		memcpy(l2_instruction, insn->opcode, insn_len);
+		memset(l2_instruction + insn_len, 0xcc, sizeof(insn->opcode) - insn_len);
+
+		if (f == SVM_F) {
+			struct svm_test_data *svm = test_data;
+			struct vmcb *vmcb = svm->vmcb;
+
+			run_guest(vmcb, svm->vmcb_gpa);
+			exit_reason = vmcb->control.exit_code;
+			exit_insn_len = vmcb->control.next_rip - vmcb->save.rip;
+			GUEST_ASSERT_EQ(vmcb->save.rip, (u64)l2_instruction);
+		} else {
+			GUEST_ASSERT_EQ(i ? vmresume() : vmlaunch(), 0);
+			exit_reason = vmreadz(VM_EXIT_REASON);
+			exit_insn_len = vmreadz(VM_EXIT_INSTRUCTION_LEN);
+			GUEST_ASSERT_EQ(vmreadz(GUEST_RIP), (u64)l2_instruction);
+		}
+
+		__GUEST_ASSERT(exit_reason == insn->exit_reason[f],
+			       "Wanted exit_reason '0x%x' for '%s', got '0x%x'",
+			       insn->exit_reason[f], insn->name, exit_reason);
+
+		__GUEST_ASSERT(exit_insn_len == insn_len,
+			       "Wanted insn_len '%u' for '%s', got '%u'",
+			       insn_len, insn->name, exit_insn_len);
+	}
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t nested_test_data_gva;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(is_forced_emulation_enabled);
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM) || kvm_cpu_has(X86_FEATURE_VMX));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vm_enable_cap(vm, KVM_CAP_EXCEPTION_PAYLOAD, -2ul);
+
+	if (kvm_cpu_has(X86_FEATURE_SVM))
+		vcpu_alloc_svm(vm, &nested_test_data_gva);
+	else
+		vcpu_alloc_vmx(vm, &nested_test_data_gva);
+
+	vcpu_args_set(vcpu, 1, nested_test_data_gva);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, NULL), UCALL_DONE);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_exceptions_test.c b/tools/testing/selftests/kvm/x86/nested_exceptions_test.c
new file mode 100644
index 000000000000..3641a42934ac
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_exceptions_test.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+#define L2_GUEST_STACK_SIZE 256
+
+/*
+ * Arbitrary, never shoved into KVM/hardware, just need to avoid conflict with
+ * the "real" exceptions used, #SS/#GP/#DF (12/13/8).
+ */
+#define FAKE_TRIPLE_FAULT_VECTOR	0xaa
+
+/* Arbitrary 32-bit error code injected by this test. */
+#define SS_ERROR_CODE 0xdeadbeef
+
+/*
+ * Bit '0' is set on Intel if the exception occurs while delivering a previous
+ * event/exception.  AMD's wording is ambiguous, but presumably the bit is set
+ * if the exception occurs while delivering an external event, e.g. NMI or INTR,
+ * but not for exceptions that occur when delivering other exceptions or
+ * software interrupts.
+ *
+ * Note, Intel's name for it, "External event", is misleading and much more
+ * aligned with AMD's behavior, but the SDM is quite clear on its behavior.
+ */
+#define ERROR_CODE_EXT_FLAG	BIT(0)
+
+/*
+ * Bit '1' is set if the fault occurred when looking up a descriptor in the
+ * IDT, which is the case here as the IDT is empty/NULL.
+ */
+#define ERROR_CODE_IDT_FLAG	BIT(1)
+
+/*
+ * The #GP that occurs when vectoring #SS should show the index into the IDT
+ * for #SS, plus have the "IDT flag" set.
+ */
+#define GP_ERROR_CODE_AMD ((SS_VECTOR * 8) | ERROR_CODE_IDT_FLAG)
+#define GP_ERROR_CODE_INTEL ((SS_VECTOR * 8) | ERROR_CODE_IDT_FLAG | ERROR_CODE_EXT_FLAG)
+
+/*
+ * Intel and AMD both shove '0' into the error code on #DF, regardless of what
+ * led to the double fault.
+ */
+#define DF_ERROR_CODE 0
+
+#define INTERCEPT_SS		(BIT_ULL(SS_VECTOR))
+#define INTERCEPT_SS_DF		(INTERCEPT_SS | BIT_ULL(DF_VECTOR))
+#define INTERCEPT_SS_GP_DF	(INTERCEPT_SS_DF | BIT_ULL(GP_VECTOR))
+
+static void l2_ss_pending_test(void)
+{
+	GUEST_SYNC(SS_VECTOR);
+}
+
+static void l2_ss_injected_gp_test(void)
+{
+	GUEST_SYNC(GP_VECTOR);
+}
+
+static void l2_ss_injected_df_test(void)
+{
+	GUEST_SYNC(DF_VECTOR);
+}
+
+static void l2_ss_injected_tf_test(void)
+{
+	GUEST_SYNC(FAKE_TRIPLE_FAULT_VECTOR);
+}
+
+static void svm_run_l2(struct svm_test_data *svm, void *l2_code, int vector,
+		       uint32_t error_code)
+{
+	struct vmcb *vmcb = svm->vmcb;
+	struct vmcb_control_area *ctrl = &vmcb->control;
+
+	vmcb->save.rip = (u64)l2_code;
+	run_guest(vmcb, svm->vmcb_gpa);
+
+	if (vector == FAKE_TRIPLE_FAULT_VECTOR)
+		return;
+
+	GUEST_ASSERT_EQ(ctrl->exit_code, (SVM_EXIT_EXCP_BASE + vector));
+	GUEST_ASSERT_EQ(ctrl->exit_info_1, error_code);
+	GUEST_ASSERT(!ctrl->int_state);
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	struct vmcb_control_area *ctrl = &svm->vmcb->control;
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	generic_svm_setup(svm, NULL, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	svm->vmcb->save.idtr.limit = 0;
+	ctrl->intercept |= BIT_ULL(INTERCEPT_SHUTDOWN);
+
+	ctrl->intercept_exceptions = INTERCEPT_SS_GP_DF;
+	svm_run_l2(svm, l2_ss_pending_test, SS_VECTOR, SS_ERROR_CODE);
+	svm_run_l2(svm, l2_ss_injected_gp_test, GP_VECTOR, GP_ERROR_CODE_AMD);
+
+	ctrl->intercept_exceptions = INTERCEPT_SS_DF;
+	svm_run_l2(svm, l2_ss_injected_df_test, DF_VECTOR, DF_ERROR_CODE);
+
+	ctrl->intercept_exceptions = INTERCEPT_SS;
+	svm_run_l2(svm, l2_ss_injected_tf_test, FAKE_TRIPLE_FAULT_VECTOR, 0);
+	GUEST_ASSERT_EQ(ctrl->exit_code, SVM_EXIT_SHUTDOWN);
+
+	GUEST_DONE();
+}
+
+static void vmx_run_l2(void *l2_code, int vector, uint32_t error_code)
+{
+	GUEST_ASSERT(!vmwrite(GUEST_RIP, (u64)l2_code));
+
+	GUEST_ASSERT_EQ(vector == SS_VECTOR ? vmlaunch() : vmresume(), 0);
+
+	if (vector == FAKE_TRIPLE_FAULT_VECTOR)
+		return;
+
+	GUEST_ASSERT_EQ(vmreadz(VM_EXIT_REASON), EXIT_REASON_EXCEPTION_NMI);
+	GUEST_ASSERT_EQ((vmreadz(VM_EXIT_INTR_INFO) & 0xff), vector);
+	GUEST_ASSERT_EQ(vmreadz(VM_EXIT_INTR_ERROR_CODE), error_code);
+	GUEST_ASSERT(!vmreadz(GUEST_INTERRUPTIBILITY_INFO));
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT_EQ(prepare_for_vmx_operation(vmx), true);
+
+	GUEST_ASSERT_EQ(load_vmcs(vmx), true);
+
+	prepare_vmcs(vmx, NULL, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	GUEST_ASSERT_EQ(vmwrite(GUEST_IDTR_LIMIT, 0), 0);
+
+	/*
+	 * VMX disallows injecting an exception with error_code[31:16] != 0,
+	 * and hardware will never generate a VM-Exit with bits 31:16 set.
+	 * KVM should likewise truncate the "bad" userspace value.
+	 */
+	GUEST_ASSERT_EQ(vmwrite(EXCEPTION_BITMAP, INTERCEPT_SS_GP_DF), 0);
+	vmx_run_l2(l2_ss_pending_test, SS_VECTOR, (u16)SS_ERROR_CODE);
+	vmx_run_l2(l2_ss_injected_gp_test, GP_VECTOR, GP_ERROR_CODE_INTEL);
+
+	GUEST_ASSERT_EQ(vmwrite(EXCEPTION_BITMAP, INTERCEPT_SS_DF), 0);
+	vmx_run_l2(l2_ss_injected_df_test, DF_VECTOR, DF_ERROR_CODE);
+
+	GUEST_ASSERT_EQ(vmwrite(EXCEPTION_BITMAP, INTERCEPT_SS), 0);
+	vmx_run_l2(l2_ss_injected_tf_test, FAKE_TRIPLE_FAULT_VECTOR, 0);
+	GUEST_ASSERT_EQ(vmreadz(VM_EXIT_REASON), EXIT_REASON_TRIPLE_FAULT);
+
+	GUEST_DONE();
+}
+
+static void __attribute__((__flatten__)) l1_guest_code(void *test_data)
+{
+	if (this_cpu_has(X86_FEATURE_SVM))
+		l1_svm_code(test_data);
+	else
+		l1_vmx_code(test_data);
+}
+
+static void assert_ucall_vector(struct kvm_vcpu *vcpu, int vector)
+{
+	struct ucall uc;
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+		TEST_ASSERT(vector == uc.args[1],
+			    "Expected L2 to ask for %d, got %ld", vector, uc.args[1]);
+		break;
+	case UCALL_DONE:
+		TEST_ASSERT(vector == -1,
+			    "Expected L2 to ask for %d, L2 says it's done", vector);
+		break;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	default:
+		TEST_FAIL("Expected L2 to ask for %d, got unexpected ucall %lu", vector, uc.cmd);
+	}
+}
+
+static void queue_ss_exception(struct kvm_vcpu *vcpu, bool inject)
+{
+	struct kvm_vcpu_events events;
+
+	vcpu_events_get(vcpu, &events);
+
+	TEST_ASSERT(!events.exception.pending,
+		    "Vector %d unexpectedlt pending", events.exception.nr);
+	TEST_ASSERT(!events.exception.injected,
+		    "Vector %d unexpectedly injected", events.exception.nr);
+
+	events.flags = KVM_VCPUEVENT_VALID_PAYLOAD;
+	events.exception.pending = !inject;
+	events.exception.injected = inject;
+	events.exception.nr = SS_VECTOR;
+	events.exception.has_error_code = true;
+	events.exception.error_code = SS_ERROR_CODE;
+	vcpu_events_set(vcpu, &events);
+}
+
+/*
+ * Verify KVM_{G,S}ET_EVENTS play nice with pending vs. injected exceptions
+ * when an exception is being queued for L2.  Specifically, verify that KVM
+ * honors L1 exception intercept controls when a #SS is pending/injected,
+ * triggers a #GP on vectoring the #SS, morphs to #DF if #GP isn't intercepted
+ * by L1, and finally causes (nested) SHUTDOWN if #DF isn't intercepted by L1.
+ */
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t nested_test_data_gva;
+	struct kvm_vcpu_events events;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_EXCEPTION_PAYLOAD));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM) || kvm_cpu_has(X86_FEATURE_VMX));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+	vm_enable_cap(vm, KVM_CAP_EXCEPTION_PAYLOAD, -2ul);
+
+	if (kvm_cpu_has(X86_FEATURE_SVM))
+		vcpu_alloc_svm(vm, &nested_test_data_gva);
+	else
+		vcpu_alloc_vmx(vm, &nested_test_data_gva);
+
+	vcpu_args_set(vcpu, 1, nested_test_data_gva);
+
+	/* Run L1 => L2.  L2 should sync and request #SS. */
+	vcpu_run(vcpu);
+	assert_ucall_vector(vcpu, SS_VECTOR);
+
+	/* Pend #SS and request immediate exit.  #SS should still be pending. */
+	queue_ss_exception(vcpu, false);
+	vcpu->run->immediate_exit = true;
+	vcpu_run_complete_io(vcpu);
+
+	/* Verify the pending events comes back out the same as it went in. */
+	vcpu_events_get(vcpu, &events);
+	TEST_ASSERT_EQ(events.flags & KVM_VCPUEVENT_VALID_PAYLOAD,
+			KVM_VCPUEVENT_VALID_PAYLOAD);
+	TEST_ASSERT_EQ(events.exception.pending, true);
+	TEST_ASSERT_EQ(events.exception.nr, SS_VECTOR);
+	TEST_ASSERT_EQ(events.exception.has_error_code, true);
+	TEST_ASSERT_EQ(events.exception.error_code, SS_ERROR_CODE);
+
+	/*
+	 * Run for real with the pending #SS, L1 should get a VM-Exit due to
+	 * #SS interception and re-enter L2 to request #GP (via injected #SS).
+	 */
+	vcpu->run->immediate_exit = false;
+	vcpu_run(vcpu);
+	assert_ucall_vector(vcpu, GP_VECTOR);
+
+	/*
+	 * Inject #SS, the #SS should bypass interception and cause #GP, which
+	 * L1 should intercept before KVM morphs it to #DF.  L1 should then
+	 * disable #GP interception and run L2 to request #DF (via #SS => #GP).
+	 */
+	queue_ss_exception(vcpu, true);
+	vcpu_run(vcpu);
+	assert_ucall_vector(vcpu, DF_VECTOR);
+
+	/*
+	 * Inject #SS, the #SS should bypass interception and cause #GP, which
+	 * L1 is no longer interception, and so should see a #DF VM-Exit.  L1
+	 * should then signal that is done.
+	 */
+	queue_ss_exception(vcpu, true);
+	vcpu_run(vcpu);
+	assert_ucall_vector(vcpu, FAKE_TRIPLE_FAULT_VECTOR);
+
+	/*
+	 * Inject #SS yet again.  L1 is not intercepting #GP or #DF, and so
+	 * should see nested TRIPLE_FAULT / SHUTDOWN.
+	 */
+	queue_ss_exception(vcpu, true);
+	vcpu_run(vcpu);
+	assert_ucall_vector(vcpu, -1);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_invalid_cr3_test.c b/tools/testing/selftests/kvm/x86/nested_invalid_cr3_test.c
new file mode 100644
index 000000000000..a6b6da9cf7fe
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_invalid_cr3_test.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2025, Google LLC.
+ *
+ * This test verifies that L1 fails to enter L2 with an invalid CR3, and
+ * succeeds otherwise.
+ */
+#include "kvm_util.h"
+#include "vmx.h"
+#include "svm_util.h"
+#include "kselftest.h"
+
+
+#define L2_GUEST_STACK_SIZE 64
+
+static void l2_guest_code(void)
+{
+	vmcall();
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	uintptr_t save_cr3;
+
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* Try to run L2 with invalid CR3 and make sure it fails */
+	save_cr3 = svm->vmcb->save.cr3;
+	svm->vmcb->save.cr3 = -1ull;
+	run_guest(svm->vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(svm->vmcb->control.exit_code == SVM_EXIT_ERR);
+
+	/* Now restore CR3 and make sure L2 runs successfully */
+	svm->vmcb->save.cr3 = save_cr3;
+	run_guest(svm->vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(svm->vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+
+	GUEST_DONE();
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx_pages)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	uintptr_t save_cr3;
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* Try to run L2 with invalid CR3 and make sure it fails */
+	save_cr3 = vmreadz(GUEST_CR3);
+	vmwrite(GUEST_CR3, -1ull);
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) ==
+		     (EXIT_REASON_FAILED_VMENTRY | EXIT_REASON_INVALID_STATE));
+
+	/* Now restore CR3 and make sure L2 runs successfully */
+	vmwrite(GUEST_CR3, save_cr3);
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	GUEST_DONE();
+}
+
+static void l1_guest_code(void *data)
+{
+	if (this_cpu_has(X86_FEATURE_VMX))
+		l1_vmx_code(data);
+	else
+		l1_svm_code(data);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	vm_vaddr_t guest_gva = 0;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX) ||
+		     kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	if (kvm_cpu_has(X86_FEATURE_VMX))
+		vcpu_alloc_vmx(vm, &guest_gva);
+	else
+		vcpu_alloc_svm(vm, &guest_gva);
+
+	vcpu_args_set(vcpu, 1, guest_gva);
+
+	for (;;) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_tsc_adjust_test.c b/tools/testing/selftests/kvm/x86/nested_tsc_adjust_test.c
new file mode 100644
index 000000000000..2839f650e5c9
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_tsc_adjust_test.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2018, Google LLC.
+ *
+ * IA32_TSC_ADJUST test
+ *
+ * According to the SDM, "if an execution of WRMSR to the
+ * IA32_TIME_STAMP_COUNTER MSR adds (or subtracts) value X from the TSC,
+ * the logical processor also adds (or subtracts) value X from the
+ * IA32_TSC_ADJUST MSR.
+ *
+ * Note that when L1 doesn't intercept writes to IA32_TSC, a
+ * WRMSR(IA32_TSC) from L2 sets L1's TSC value, not L2's perceived TSC
+ * value.
+ *
+ * This test verifies that this unusual case is handled correctly.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kselftest.h"
+
+#ifndef MSR_IA32_TSC_ADJUST
+#define MSR_IA32_TSC_ADJUST 0x3b
+#endif
+
+#define TSC_ADJUST_VALUE (1ll << 32)
+#define TSC_OFFSET_VALUE -(1ll << 48)
+
+#define L2_GUEST_STACK_SIZE 64
+
+enum {
+	PORT_ABORT = 0x1000,
+	PORT_REPORT,
+	PORT_DONE,
+};
+
+enum {
+	VMXON_PAGE = 0,
+	VMCS_PAGE,
+	MSR_BITMAP_PAGE,
+
+	NUM_VMX_PAGES,
+};
+
+/* The virtual machine object. */
+static struct kvm_vm *vm;
+
+static void check_ia32_tsc_adjust(int64_t max)
+{
+	int64_t adjust;
+
+	adjust = rdmsr(MSR_IA32_TSC_ADJUST);
+	GUEST_SYNC(adjust);
+	GUEST_ASSERT(adjust <= max);
+}
+
+static void l2_guest_code(void)
+{
+	uint64_t l1_tsc = rdtsc() - TSC_OFFSET_VALUE;
+
+	wrmsr(MSR_IA32_TSC, l1_tsc - TSC_ADJUST_VALUE);
+	check_ia32_tsc_adjust(-2 * TSC_ADJUST_VALUE);
+
+	/* Exit to L1 */
+	__asm__ __volatile__("vmcall");
+}
+
+static void l1_guest_code(void *data)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	/* Set TSC from L1 and make sure TSC_ADJUST is updated correctly */
+	GUEST_ASSERT(rdtsc() < TSC_ADJUST_VALUE);
+	wrmsr(MSR_IA32_TSC, rdtsc() - TSC_ADJUST_VALUE);
+	check_ia32_tsc_adjust(-1 * TSC_ADJUST_VALUE);
+
+	/*
+	 * Run L2 with TSC_OFFSET. L2 will write to TSC, and L1 is not
+	 * intercepting the write so it should update L1's TSC_ADJUST.
+	 */
+	if (this_cpu_has(X86_FEATURE_VMX)) {
+		struct vmx_pages *vmx_pages = data;
+		uint32_t control;
+
+		GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+		GUEST_ASSERT(load_vmcs(vmx_pages));
+
+		prepare_vmcs(vmx_pages, l2_guest_code,
+			     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+		control = vmreadz(CPU_BASED_VM_EXEC_CONTROL);
+		control |= CPU_BASED_USE_MSR_BITMAPS | CPU_BASED_USE_TSC_OFFSETTING;
+		vmwrite(CPU_BASED_VM_EXEC_CONTROL, control);
+		vmwrite(TSC_OFFSET, TSC_OFFSET_VALUE);
+
+		GUEST_ASSERT(!vmlaunch());
+		GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	} else {
+		struct svm_test_data *svm = data;
+
+		generic_svm_setup(svm, l2_guest_code,
+				  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+		svm->vmcb->control.tsc_offset = TSC_OFFSET_VALUE;
+		run_guest(svm->vmcb, svm->vmcb_gpa);
+		GUEST_ASSERT(svm->vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	}
+
+	check_ia32_tsc_adjust(-2 * TSC_ADJUST_VALUE);
+	GUEST_DONE();
+}
+
+static void report(int64_t val)
+{
+	pr_info("IA32_TSC_ADJUST is %ld (%lld * TSC_ADJUST_VALUE + %lld).\n",
+		val, val / TSC_ADJUST_VALUE, val % TSC_ADJUST_VALUE);
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t nested_gva;
+	struct kvm_vcpu *vcpu;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX) ||
+		     kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+	if (kvm_cpu_has(X86_FEATURE_VMX))
+		vcpu_alloc_vmx(vm, &nested_gva);
+	else
+		vcpu_alloc_svm(vm, &nested_gva);
+
+	vcpu_args_set(vcpu, 1, nested_gva);
+
+	for (;;) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			report(uc.args[1]);
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/nested_tsc_scaling_test.c b/tools/testing/selftests/kvm/x86/nested_tsc_scaling_test.c
new file mode 100644
index 000000000000..4260c9e4f489
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nested_tsc_scaling_test.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vmx_nested_tsc_scaling_test
+ *
+ * Copyright 2021 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This test case verifies that nested TSC scaling behaves as expected when
+ * both L1 and L2 are scaled using different ratios. For this test we scale
+ * L1 down and scale L2 up.
+ */
+
+#include <time.h>
+
+#include "kvm_util.h"
+#include "vmx.h"
+#include "svm_util.h"
+#include "kselftest.h"
+
+/* L2 is scaled up (from L1's perspective) by this factor */
+#define L2_SCALE_FACTOR 4ULL
+
+#define TSC_OFFSET_L2 ((uint64_t) -33125236320908)
+#define TSC_MULTIPLIER_L2 (L2_SCALE_FACTOR << 48)
+
+#define L2_GUEST_STACK_SIZE 64
+
+enum { USLEEP, UCHECK_L1, UCHECK_L2 };
+#define GUEST_SLEEP(sec)         ucall(UCALL_SYNC, 2, USLEEP, sec)
+#define GUEST_CHECK(level, freq) ucall(UCALL_SYNC, 2, level, freq)
+
+
+/*
+ * This function checks whether the "actual" TSC frequency of a guest matches
+ * its expected frequency. In order to account for delays in taking the TSC
+ * measurements, a difference of 1% between the actual and the expected value
+ * is tolerated.
+ */
+static void compare_tsc_freq(uint64_t actual, uint64_t expected)
+{
+	uint64_t tolerance, thresh_low, thresh_high;
+
+	tolerance = expected / 100;
+	thresh_low = expected - tolerance;
+	thresh_high = expected + tolerance;
+
+	TEST_ASSERT(thresh_low < actual,
+		"TSC freq is expected to be between %"PRIu64" and %"PRIu64
+		" but it actually is %"PRIu64,
+		thresh_low, thresh_high, actual);
+	TEST_ASSERT(thresh_high > actual,
+		"TSC freq is expected to be between %"PRIu64" and %"PRIu64
+		" but it actually is %"PRIu64,
+		thresh_low, thresh_high, actual);
+}
+
+static void check_tsc_freq(int level)
+{
+	uint64_t tsc_start, tsc_end, tsc_freq;
+
+	/*
+	 * Reading the TSC twice with about a second's difference should give
+	 * us an approximation of the TSC frequency from the guest's
+	 * perspective. Now, this won't be completely accurate, but it should
+	 * be good enough for the purposes of this test.
+	 */
+	tsc_start = rdmsr(MSR_IA32_TSC);
+	GUEST_SLEEP(1);
+	tsc_end = rdmsr(MSR_IA32_TSC);
+
+	tsc_freq = tsc_end - tsc_start;
+
+	GUEST_CHECK(level, tsc_freq);
+}
+
+static void l2_guest_code(void)
+{
+	check_tsc_freq(UCHECK_L2);
+
+	/* exit to L1 */
+	__asm__ __volatile__("vmcall");
+}
+
+static void l1_svm_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	/* check that L1's frequency looks alright before launching L2 */
+	check_tsc_freq(UCHECK_L1);
+
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* enable TSC scaling for L2 */
+	wrmsr(MSR_AMD64_TSC_RATIO, L2_SCALE_FACTOR << 32);
+
+	/* launch L2 */
+	run_guest(svm->vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(svm->vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+
+	/* check that L1's frequency still looks good */
+	check_tsc_freq(UCHECK_L1);
+
+	GUEST_DONE();
+}
+
+static void l1_vmx_code(struct vmx_pages *vmx_pages)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	uint32_t control;
+
+	/* check that L1's frequency looks alright before launching L2 */
+	check_tsc_freq(UCHECK_L1);
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	/* prepare the VMCS for L2 execution */
+	prepare_vmcs(vmx_pages, l2_guest_code, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* enable TSC offsetting and TSC scaling for L2 */
+	control = vmreadz(CPU_BASED_VM_EXEC_CONTROL);
+	control |= CPU_BASED_USE_MSR_BITMAPS | CPU_BASED_USE_TSC_OFFSETTING;
+	vmwrite(CPU_BASED_VM_EXEC_CONTROL, control);
+
+	control = vmreadz(SECONDARY_VM_EXEC_CONTROL);
+	control |= SECONDARY_EXEC_TSC_SCALING;
+	vmwrite(SECONDARY_VM_EXEC_CONTROL, control);
+
+	vmwrite(TSC_OFFSET, TSC_OFFSET_L2);
+	vmwrite(TSC_MULTIPLIER, TSC_MULTIPLIER_L2);
+	vmwrite(TSC_MULTIPLIER_HIGH, TSC_MULTIPLIER_L2 >> 32);
+
+	/* launch L2 */
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	/* check that L1's frequency still looks good */
+	check_tsc_freq(UCHECK_L1);
+
+	GUEST_DONE();
+}
+
+static void l1_guest_code(void *data)
+{
+	if (this_cpu_has(X86_FEATURE_VMX))
+		l1_vmx_code(data);
+	else
+		l1_svm_code(data);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	vm_vaddr_t guest_gva = 0;
+
+	uint64_t tsc_start, tsc_end;
+	uint64_t tsc_khz;
+	uint64_t l1_scale_factor;
+	uint64_t l0_tsc_freq = 0;
+	uint64_t l1_tsc_freq = 0;
+	uint64_t l2_tsc_freq = 0;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX) ||
+		     kvm_cpu_has(X86_FEATURE_SVM));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_TSC_CONTROL));
+	TEST_REQUIRE(sys_clocksource_is_based_on_tsc());
+
+	/*
+	 * We set L1's scale factor to be a random number from 2 to 10.
+	 * Ideally we would do the same for L2's factor but that one is
+	 * referenced by both main() and l1_guest_code() and using a global
+	 * variable does not work.
+	 */
+	srand(time(NULL));
+	l1_scale_factor = (rand() % 9) + 2;
+	printf("L1's scale down factor is: %"PRIu64"\n", l1_scale_factor);
+	printf("L2's scale up factor is: %llu\n", L2_SCALE_FACTOR);
+
+	tsc_start = rdtsc();
+	sleep(1);
+	tsc_end = rdtsc();
+
+	l0_tsc_freq = tsc_end - tsc_start;
+	printf("real TSC frequency is around: %"PRIu64"\n", l0_tsc_freq);
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	if (kvm_cpu_has(X86_FEATURE_VMX))
+		vcpu_alloc_vmx(vm, &guest_gva);
+	else
+		vcpu_alloc_svm(vm, &guest_gva);
+
+	vcpu_args_set(vcpu, 1, guest_gva);
+
+	tsc_khz = __vcpu_ioctl(vcpu, KVM_GET_TSC_KHZ, NULL);
+	TEST_ASSERT(tsc_khz != -1, "vcpu ioctl KVM_GET_TSC_KHZ failed");
+
+	/* scale down L1's TSC frequency */
+	vcpu_ioctl(vcpu, KVM_SET_TSC_KHZ, (void *) (tsc_khz / l1_scale_factor));
+
+	for (;;) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		case UCALL_SYNC:
+			switch (uc.args[0]) {
+			case USLEEP:
+				sleep(uc.args[1]);
+				break;
+			case UCHECK_L1:
+				l1_tsc_freq = uc.args[1];
+				printf("L1's TSC frequency is around: %"PRIu64
+				       "\n", l1_tsc_freq);
+
+				compare_tsc_freq(l1_tsc_freq,
+						 l0_tsc_freq / l1_scale_factor);
+				break;
+			case UCHECK_L2:
+				l2_tsc_freq = uc.args[1];
+				printf("L2's TSC frequency is around: %"PRIu64
+				       "\n", l2_tsc_freq);
+
+				compare_tsc_freq(l2_tsc_freq,
+						 l1_tsc_freq * L2_SCALE_FACTOR);
+				break;
+			}
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c
new file mode 100644
index 000000000000..c0d84827f736
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.c
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Usage: to be run via nx_huge_page_test.sh, which does the necessary
+ * environment setup and teardown
+ *
+ * Copyright (C) 2022, Google LLC.
+ */
+#include <fcntl.h>
+#include <stdint.h>
+#include <time.h>
+
+#include <test_util.h>
+#include "kvm_util.h"
+#include "processor.h"
+
+#define HPAGE_SLOT		10
+#define HPAGE_GPA		(4UL << 30) /* 4G prevents collision w/ slot 0 */
+#define HPAGE_GVA		HPAGE_GPA /* GVA is arbitrary, so use GPA. */
+#define PAGES_PER_2MB_HUGE_PAGE 512
+#define HPAGE_SLOT_NPAGES	(3 * PAGES_PER_2MB_HUGE_PAGE)
+
+/*
+ * Passed by nx_huge_pages_test.sh to provide an easy warning if this test is
+ * being run without it.
+ */
+#define MAGIC_TOKEN 887563923
+
+/*
+ * x86 opcode for the return instruction. Used to call into, and then
+ * immediately return from, memory backed with hugepages.
+ */
+#define RETURN_OPCODE 0xC3
+
+/* Call the specified memory address. */
+static void guest_do_CALL(uint64_t target)
+{
+	((void (*)(void)) target)();
+}
+
+/*
+ * Exit the VM after each memory access so that the userspace component of the
+ * test can make assertions about the pages backing the VM.
+ *
+ * See the below for an explanation of how each access should affect the
+ * backing mappings.
+ */
+void guest_code(void)
+{
+	uint64_t hpage_1 = HPAGE_GVA;
+	uint64_t hpage_2 = hpage_1 + (PAGE_SIZE * 512);
+	uint64_t hpage_3 = hpage_2 + (PAGE_SIZE * 512);
+
+	READ_ONCE(*(uint64_t *)hpage_1);
+	GUEST_SYNC(1);
+
+	READ_ONCE(*(uint64_t *)hpage_2);
+	GUEST_SYNC(2);
+
+	guest_do_CALL(hpage_1);
+	GUEST_SYNC(3);
+
+	guest_do_CALL(hpage_3);
+	GUEST_SYNC(4);
+
+	READ_ONCE(*(uint64_t *)hpage_1);
+	GUEST_SYNC(5);
+
+	READ_ONCE(*(uint64_t *)hpage_3);
+	GUEST_SYNC(6);
+}
+
+static void check_2m_page_count(struct kvm_vm *vm, int expected_pages_2m)
+{
+	int actual_pages_2m;
+
+	actual_pages_2m = vm_get_stat(vm, pages_2m);
+
+	TEST_ASSERT(actual_pages_2m == expected_pages_2m,
+		    "Unexpected 2m page count. Expected %d, got %d",
+		    expected_pages_2m, actual_pages_2m);
+}
+
+static void check_split_count(struct kvm_vm *vm, int expected_splits)
+{
+	int actual_splits;
+
+	actual_splits = vm_get_stat(vm, nx_lpage_splits);
+
+	TEST_ASSERT(actual_splits == expected_splits,
+		    "Unexpected NX huge page split count. Expected %d, got %d",
+		    expected_splits, actual_splits);
+}
+
+static void wait_for_reclaim(int reclaim_period_ms)
+{
+	long reclaim_wait_ms;
+	struct timespec ts;
+
+	reclaim_wait_ms = reclaim_period_ms * 5;
+	ts.tv_sec = reclaim_wait_ms / 1000;
+	ts.tv_nsec = (reclaim_wait_ms - (ts.tv_sec * 1000)) * 1000000;
+	nanosleep(&ts, NULL);
+}
+
+void run_test(int reclaim_period_ms, bool disable_nx_huge_pages,
+	      bool reboot_permissions)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint64_t nr_bytes;
+	void *hva;
+	int r;
+
+	vm = vm_create(1);
+
+	if (disable_nx_huge_pages) {
+		r = __vm_disable_nx_huge_pages(vm);
+		if (reboot_permissions) {
+			TEST_ASSERT(!r, "Disabling NX huge pages should succeed if process has reboot permissions");
+		} else {
+			TEST_ASSERT(r == -1 && errno == EPERM,
+				    "This process should not have permission to disable NX huge pages");
+			return;
+		}
+	}
+
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS_HUGETLB,
+				    HPAGE_GPA, HPAGE_SLOT,
+				    HPAGE_SLOT_NPAGES, 0);
+
+	nr_bytes = HPAGE_SLOT_NPAGES * vm->page_size;
+
+	/*
+	 * Ensure that KVM can map HPAGE_SLOT with huge pages by mapping the
+	 * region into the guest with 2MiB pages whenever TDP is disabled (i.e.
+	 * whenever KVM is shadowing the guest page tables).
+	 *
+	 * When TDP is enabled, KVM should be able to map HPAGE_SLOT with huge
+	 * pages irrespective of the guest page size, so map with 4KiB pages
+	 * to test that that is the case.
+	 */
+	if (kvm_is_tdp_enabled())
+		virt_map_level(vm, HPAGE_GVA, HPAGE_GPA, nr_bytes, PG_LEVEL_4K);
+	else
+		virt_map_level(vm, HPAGE_GVA, HPAGE_GPA, nr_bytes, PG_LEVEL_2M);
+
+	hva = addr_gpa2hva(vm, HPAGE_GPA);
+	memset(hva, RETURN_OPCODE, nr_bytes);
+
+	check_2m_page_count(vm, 0);
+	check_split_count(vm, 0);
+
+	/*
+	 * The guest code will first read from the first hugepage, resulting
+	 * in a huge page mapping being created.
+	 */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, 1);
+	check_split_count(vm, 0);
+
+	/*
+	 * Then the guest code will read from the second hugepage, resulting
+	 * in another huge page mapping being created.
+	 */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, 2);
+	check_split_count(vm, 0);
+
+	/*
+	 * Next, the guest will execute from the first huge page, causing it
+	 * to be remapped at 4k.
+	 *
+	 * If NX huge pages are disabled, this should have no effect.
+	 */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, disable_nx_huge_pages ? 2 : 1);
+	check_split_count(vm, disable_nx_huge_pages ? 0 : 1);
+
+	/*
+	 * Executing from the third huge page (previously unaccessed) will
+	 * cause part to be mapped at 4k.
+	 *
+	 * If NX huge pages are disabled, it should be mapped at 2M.
+	 */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, disable_nx_huge_pages ? 3 : 1);
+	check_split_count(vm, disable_nx_huge_pages ? 0 : 2);
+
+	/* Reading from the first huge page again should have no effect. */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, disable_nx_huge_pages ? 3 : 1);
+	check_split_count(vm, disable_nx_huge_pages ? 0 : 2);
+
+	/* Give recovery thread time to run. */
+	wait_for_reclaim(reclaim_period_ms);
+
+	/*
+	 * Now that the reclaimer has run, all the split pages should be gone.
+	 *
+	 * If NX huge pages are disabled, the relaimer will not run, so
+	 * nothing should change from here on.
+	 */
+	check_2m_page_count(vm, disable_nx_huge_pages ? 3 : 1);
+	check_split_count(vm, 0);
+
+	/*
+	 * The 4k mapping on hpage 3 should have been removed, so check that
+	 * reading from it causes a huge page mapping to be installed.
+	 */
+	vcpu_run(vcpu);
+	check_2m_page_count(vm, disable_nx_huge_pages ? 3 : 2);
+	check_split_count(vm, 0);
+
+	kvm_vm_free(vm);
+}
+
+static void help(char *name)
+{
+	puts("");
+	printf("usage: %s [-h] [-p period_ms] [-t token]\n", name);
+	puts("");
+	printf(" -p: The NX reclaim period in milliseconds.\n");
+	printf(" -t: The magic token to indicate environment setup is done.\n");
+	printf(" -r: The test has reboot permissions and can disable NX huge pages.\n");
+	puts("");
+	exit(0);
+}
+
+int main(int argc, char **argv)
+{
+	int reclaim_period_ms = 0, token = 0, opt;
+	bool reboot_permissions = false;
+
+	while ((opt = getopt(argc, argv, "hp:t:r")) != -1) {
+		switch (opt) {
+		case 'p':
+			reclaim_period_ms = atoi_positive("Reclaim period", optarg);
+			break;
+		case 't':
+			token = atoi_paranoid(optarg);
+			break;
+		case 'r':
+			reboot_permissions = true;
+			break;
+		case 'h':
+		default:
+			help(argv[0]);
+			break;
+		}
+	}
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_DISABLE_NX_HUGE_PAGES));
+
+	__TEST_REQUIRE(token == MAGIC_TOKEN,
+		       "This test must be run with the magic token via '-t %d'.\n"
+		       "Running via nx_huge_pages_test.sh, which also handles "
+		       "environment setup, is strongly recommended.", MAGIC_TOKEN);
+
+	run_test(reclaim_period_ms, false, reboot_permissions);
+	run_test(reclaim_period_ms, true, reboot_permissions);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/kvm/x86/nx_huge_pages_test.sh b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.sh
new file mode 100755
index 000000000000..caad084b8bfd
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/nx_huge_pages_test.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-only */
+#
+# Wrapper script which performs setup and cleanup for nx_huge_pages_test.
+# Makes use of root privileges to set up huge pages and KVM module parameters.
+#
+# Copyright (C) 2022, Google LLC.
+
+set -e
+
+NX_HUGE_PAGES=$(cat /sys/module/kvm/parameters/nx_huge_pages)
+NX_HUGE_PAGES_RECOVERY_RATIO=$(cat /sys/module/kvm/parameters/nx_huge_pages_recovery_ratio)
+NX_HUGE_PAGES_RECOVERY_PERIOD=$(cat /sys/module/kvm/parameters/nx_huge_pages_recovery_period_ms)
+HUGE_PAGES=$(cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages)
+
+# If we're already root, the host might not have sudo.
+if [ $(whoami) == "root" ]; then
+	function do_sudo () {
+		"$@"
+	}
+else
+	function do_sudo () {
+		sudo "$@"
+	}
+fi
+
+set +e
+
+function sudo_echo () {
+	echo "$1" | do_sudo tee -a "$2" > /dev/null
+}
+
+NXECUTABLE="$(dirname $0)/nx_huge_pages_test"
+
+sudo_echo test /dev/null || exit 4 # KSFT_SKIP=4
+
+(
+	set -e
+
+	sudo_echo 1 /sys/module/kvm/parameters/nx_huge_pages
+	sudo_echo 1 /sys/module/kvm/parameters/nx_huge_pages_recovery_ratio
+	sudo_echo 100 /sys/module/kvm/parameters/nx_huge_pages_recovery_period_ms
+	sudo_echo "$(( $HUGE_PAGES + 3 ))" /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+
+	# Test with reboot permissions
+	if [ $(whoami) == "root" ] || sudo setcap cap_sys_boot+ep $NXECUTABLE 2> /dev/null; then
+		echo Running test with CAP_SYS_BOOT enabled
+		$NXECUTABLE -t 887563923 -p 100 -r
+		test $(whoami) == "root" || sudo setcap cap_sys_boot-ep $NXECUTABLE
+	else
+		echo setcap failed, skipping nx_huge_pages_test with CAP_SYS_BOOT enabled
+	fi
+
+	# Test without reboot permissions
+	if [ $(whoami) != "root" ] ; then
+		echo Running test with CAP_SYS_BOOT disabled
+		$NXECUTABLE -t 887563923 -p 100
+	else
+		echo Running as root, skipping nx_huge_pages_test with CAP_SYS_BOOT disabled
+	fi
+)
+RET=$?
+
+sudo_echo "$NX_HUGE_PAGES" /sys/module/kvm/parameters/nx_huge_pages
+sudo_echo "$NX_HUGE_PAGES_RECOVERY_RATIO" /sys/module/kvm/parameters/nx_huge_pages_recovery_ratio
+sudo_echo "$NX_HUGE_PAGES_RECOVERY_PERIOD" /sys/module/kvm/parameters/nx_huge_pages_recovery_period_ms
+sudo_echo "$HUGE_PAGES" /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+
+exit $RET
diff --git a/tools/testing/selftests/kvm/x86/platform_info_test.c b/tools/testing/selftests/kvm/x86/platform_info_test.c
new file mode 100644
index 000000000000..9cbf283ebc55
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/platform_info_test.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for x86 KVM_CAP_MSR_PLATFORM_INFO
+ *
+ * Copyright (C) 2018, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * Verifies expected behavior of controlling guest access to
+ * MSR_PLATFORM_INFO.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#define MSR_PLATFORM_INFO_MAX_TURBO_RATIO 0xff00
+
+static void guest_code(void)
+{
+	uint64_t msr_platform_info;
+	uint8_t vector;
+
+	GUEST_SYNC(true);
+	msr_platform_info = rdmsr(MSR_PLATFORM_INFO);
+	GUEST_ASSERT_EQ(msr_platform_info & MSR_PLATFORM_INFO_MAX_TURBO_RATIO,
+			MSR_PLATFORM_INFO_MAX_TURBO_RATIO);
+
+	GUEST_SYNC(false);
+	vector = rdmsr_safe(MSR_PLATFORM_INFO, &msr_platform_info);
+	GUEST_ASSERT_EQ(vector, GP_VECTOR);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint64_t msr_platform_info;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_MSR_PLATFORM_INFO));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	msr_platform_info = vcpu_get_msr(vcpu, MSR_PLATFORM_INFO);
+	vcpu_set_msr(vcpu, MSR_PLATFORM_INFO,
+		     msr_platform_info | MSR_PLATFORM_INFO_MAX_TURBO_RATIO);
+
+	for (;;) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			vm_enable_cap(vm, KVM_CAP_MSR_PLATFORM_INFO, uc.args[1]);
+			break;
+		case UCALL_DONE:
+			goto done;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		default:
+			TEST_FAIL("Unexpected ucall %lu", uc.cmd);
+			break;
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/pmu_counters_test.c b/tools/testing/selftests/kvm/x86/pmu_counters_test.c
new file mode 100644
index 000000000000..3eaa216b96c0
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/pmu_counters_test.c
@@ -0,0 +1,697 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023, Tencent, Inc.
+ */
+#include <x86intrin.h>
+
+#include "pmu.h"
+#include "processor.h"
+
+/* Number of iterations of the loop for the guest measurement payload. */
+#define NUM_LOOPS			10
+
+/* Each iteration of the loop retires one branch instruction. */
+#define NUM_BRANCH_INSNS_RETIRED	(NUM_LOOPS)
+
+/*
+ * Number of instructions in each loop. 1 ENTER, 1 CLFLUSH/CLFLUSHOPT/NOP,
+ * 1 MFENCE, 1 MOV, 1 LEAVE, 1 LOOP.
+ */
+#define NUM_INSNS_PER_LOOP		6
+
+/*
+ * Number of "extra" instructions that will be counted, i.e. the number of
+ * instructions that are needed to set up the loop and then disable the
+ * counter.  2 MOV, 2 XOR, 1 WRMSR.
+ */
+#define NUM_EXTRA_INSNS			5
+
+/* Total number of instructions retired within the measured section. */
+#define NUM_INSNS_RETIRED		(NUM_LOOPS * NUM_INSNS_PER_LOOP + NUM_EXTRA_INSNS)
+
+/* Track which architectural events are supported by hardware. */
+static uint32_t hardware_pmu_arch_events;
+
+static uint8_t kvm_pmu_version;
+static bool kvm_has_perf_caps;
+
+#define X86_PMU_FEATURE_NULL						\
+({									\
+	struct kvm_x86_pmu_feature feature = {};			\
+									\
+	feature;							\
+})
+
+static bool pmu_is_null_feature(struct kvm_x86_pmu_feature event)
+{
+	return !(*(u64 *)&event);
+}
+
+struct kvm_intel_pmu_event {
+	struct kvm_x86_pmu_feature gp_event;
+	struct kvm_x86_pmu_feature fixed_event;
+};
+
+/*
+ * Wrap the array to appease the compiler, as the macros used to construct each
+ * kvm_x86_pmu_feature use syntax that's only valid in function scope, and the
+ * compiler often thinks the feature definitions aren't compile-time constants.
+ */
+static struct kvm_intel_pmu_event intel_event_to_feature(uint8_t idx)
+{
+	const struct kvm_intel_pmu_event __intel_event_to_feature[] = {
+		[INTEL_ARCH_CPU_CYCLES_INDEX]		 = { X86_PMU_FEATURE_CPU_CYCLES, X86_PMU_FEATURE_CPU_CYCLES_FIXED },
+		[INTEL_ARCH_INSTRUCTIONS_RETIRED_INDEX]	 = { X86_PMU_FEATURE_INSNS_RETIRED, X86_PMU_FEATURE_INSNS_RETIRED_FIXED },
+		/*
+		 * Note, the fixed counter for reference cycles is NOT the same as the
+		 * general purpose architectural event.  The fixed counter explicitly
+		 * counts at the same frequency as the TSC, whereas the GP event counts
+		 * at a fixed, but uarch specific, frequency.  Bundle them here for
+		 * simplicity.
+		 */
+		[INTEL_ARCH_REFERENCE_CYCLES_INDEX]	 = { X86_PMU_FEATURE_REFERENCE_CYCLES, X86_PMU_FEATURE_REFERENCE_TSC_CYCLES_FIXED },
+		[INTEL_ARCH_LLC_REFERENCES_INDEX]	 = { X86_PMU_FEATURE_LLC_REFERENCES, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_LLC_MISSES_INDEX]		 = { X86_PMU_FEATURE_LLC_MISSES, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_BRANCHES_RETIRED_INDEX]	 = { X86_PMU_FEATURE_BRANCH_INSNS_RETIRED, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_BRANCHES_MISPREDICTED_INDEX] = { X86_PMU_FEATURE_BRANCHES_MISPREDICTED, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_TOPDOWN_SLOTS_INDEX]	 = { X86_PMU_FEATURE_TOPDOWN_SLOTS, X86_PMU_FEATURE_TOPDOWN_SLOTS_FIXED },
+		[INTEL_ARCH_TOPDOWN_BE_BOUND_INDEX]	 = { X86_PMU_FEATURE_TOPDOWN_BE_BOUND, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_TOPDOWN_BAD_SPEC_INDEX]	 = { X86_PMU_FEATURE_TOPDOWN_BAD_SPEC, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_TOPDOWN_FE_BOUND_INDEX]	 = { X86_PMU_FEATURE_TOPDOWN_FE_BOUND, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_TOPDOWN_RETIRING_INDEX]	 = { X86_PMU_FEATURE_TOPDOWN_RETIRING, X86_PMU_FEATURE_NULL },
+		[INTEL_ARCH_LBR_INSERTS_INDEX]		 = { X86_PMU_FEATURE_LBR_INSERTS, X86_PMU_FEATURE_NULL },
+	};
+
+	kvm_static_assert(ARRAY_SIZE(__intel_event_to_feature) == NR_INTEL_ARCH_EVENTS);
+
+	return __intel_event_to_feature[idx];
+}
+
+static struct kvm_vm *pmu_vm_create_with_one_vcpu(struct kvm_vcpu **vcpu,
+						  void *guest_code,
+						  uint8_t pmu_version,
+						  uint64_t perf_capabilities)
+{
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(vcpu, guest_code);
+	sync_global_to_guest(vm, kvm_pmu_version);
+	sync_global_to_guest(vm, hardware_pmu_arch_events);
+
+	/*
+	 * Set PERF_CAPABILITIES before PMU version as KVM disallows enabling
+	 * features via PERF_CAPABILITIES if the guest doesn't have a vPMU.
+	 */
+	if (kvm_has_perf_caps)
+		vcpu_set_msr(*vcpu, MSR_IA32_PERF_CAPABILITIES, perf_capabilities);
+
+	vcpu_set_cpuid_property(*vcpu, X86_PROPERTY_PMU_VERSION, pmu_version);
+	return vm;
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	do {
+		vcpu_run(vcpu);
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_PRINTF:
+			pr_info("%s", uc.buffer);
+			break;
+		case UCALL_DONE:
+			break;
+		default:
+			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+		}
+	} while (uc.cmd != UCALL_DONE);
+}
+
+static uint8_t guest_get_pmu_version(void)
+{
+	/*
+	 * Return the effective PMU version, i.e. the minimum between what KVM
+	 * supports and what is enumerated to the guest.  The host deliberately
+	 * advertises a PMU version to the guest beyond what is actually
+	 * supported by KVM to verify KVM doesn't freak out and do something
+	 * bizarre with an architecturally valid, but unsupported, version.
+	 */
+	return min_t(uint8_t, kvm_pmu_version, this_cpu_property(X86_PROPERTY_PMU_VERSION));
+}
+
+/*
+ * If an architectural event is supported and guaranteed to generate at least
+ * one "hit, assert that its count is non-zero.  If an event isn't supported or
+ * the test can't guarantee the associated action will occur, then all bets are
+ * off regarding the count, i.e. no checks can be done.
+ *
+ * Sanity check that in all cases, the event doesn't count when it's disabled,
+ * and that KVM correctly emulates the write of an arbitrary value.
+ */
+static void guest_assert_event_count(uint8_t idx, uint32_t pmc, uint32_t pmc_msr)
+{
+	uint64_t count;
+
+	count = _rdpmc(pmc);
+	if (!(hardware_pmu_arch_events & BIT(idx)))
+		goto sanity_checks;
+
+	switch (idx) {
+	case INTEL_ARCH_INSTRUCTIONS_RETIRED_INDEX:
+		/* Relax precise count check due to VM-EXIT/VM-ENTRY overcount issue */
+		if (this_pmu_has_errata(INSTRUCTIONS_RETIRED_OVERCOUNT))
+			GUEST_ASSERT(count >= NUM_INSNS_RETIRED);
+		else
+			GUEST_ASSERT_EQ(count, NUM_INSNS_RETIRED);
+		break;
+	case INTEL_ARCH_BRANCHES_RETIRED_INDEX:
+		/* Relax precise count check due to VM-EXIT/VM-ENTRY overcount issue */
+		if (this_pmu_has_errata(BRANCHES_RETIRED_OVERCOUNT))
+			GUEST_ASSERT(count >= NUM_BRANCH_INSNS_RETIRED);
+		else
+			GUEST_ASSERT_EQ(count, NUM_BRANCH_INSNS_RETIRED);
+		break;
+	case INTEL_ARCH_LLC_REFERENCES_INDEX:
+	case INTEL_ARCH_LLC_MISSES_INDEX:
+		if (!this_cpu_has(X86_FEATURE_CLFLUSHOPT) &&
+		    !this_cpu_has(X86_FEATURE_CLFLUSH))
+			break;
+		fallthrough;
+	case INTEL_ARCH_CPU_CYCLES_INDEX:
+	case INTEL_ARCH_REFERENCE_CYCLES_INDEX:
+	case INTEL_ARCH_TOPDOWN_BE_BOUND_INDEX:
+	case INTEL_ARCH_TOPDOWN_FE_BOUND_INDEX:
+		GUEST_ASSERT_NE(count, 0);
+		break;
+	case INTEL_ARCH_TOPDOWN_SLOTS_INDEX:
+	case INTEL_ARCH_TOPDOWN_RETIRING_INDEX:
+		__GUEST_ASSERT(count >= NUM_INSNS_RETIRED,
+			       "Expected top-down slots >= %u, got count = %lu",
+			       NUM_INSNS_RETIRED, count);
+		break;
+	default:
+		break;
+	}
+
+sanity_checks:
+	__asm__ __volatile__("loop ." : "+c"((int){NUM_LOOPS}));
+	GUEST_ASSERT_EQ(_rdpmc(pmc), count);
+
+	wrmsr(pmc_msr, 0xdead);
+	GUEST_ASSERT_EQ(_rdpmc(pmc), 0xdead);
+}
+
+/*
+ * Enable and disable the PMC in a monolithic asm blob to ensure that the
+ * compiler can't insert _any_ code into the measured sequence.  Note, ECX
+ * doesn't need to be clobbered as the input value, @pmc_msr, is restored
+ * before the end of the sequence.
+ *
+ * If CLFUSH{,OPT} is supported, flush the cacheline containing (at least) the
+ * CLFUSH{,OPT} instruction on each loop iteration to force LLC references and
+ * misses, i.e. to allow testing that those events actually count.
+ *
+ * If forced emulation is enabled (and specified), force emulation on a subset
+ * of the measured code to verify that KVM correctly emulates instructions and
+ * branches retired events in conjunction with hardware also counting said
+ * events.
+ */
+#define GUEST_MEASURE_EVENT(_msr, _value, clflush, FEP)				\
+do {										\
+	__asm__ __volatile__("wrmsr\n\t"					\
+			     " mov $" __stringify(NUM_LOOPS) ", %%ecx\n\t"	\
+			     "1:\n\t"						\
+			     FEP "enter $0, $0\n\t"				\
+			     clflush "\n\t"					\
+			     "mfence\n\t"					\
+			     "mov %[m], %%eax\n\t"				\
+			     FEP "leave\n\t"					\
+			     FEP "loop 1b\n\t"					\
+			     FEP "mov %%edi, %%ecx\n\t"				\
+			     FEP "xor %%eax, %%eax\n\t"				\
+			     FEP "xor %%edx, %%edx\n\t"				\
+			     "wrmsr\n\t"					\
+			     :: "a"((uint32_t)_value), "d"(_value >> 32),	\
+				"c"(_msr), "D"(_msr), [m]"m"(kvm_pmu_version)	\
+	);									\
+} while (0)
+
+#define GUEST_TEST_EVENT(_idx, _pmc, _pmc_msr, _ctrl_msr, _value, FEP)		\
+do {										\
+	wrmsr(_pmc_msr, 0);							\
+										\
+	if (this_cpu_has(X86_FEATURE_CLFLUSHOPT))				\
+		GUEST_MEASURE_EVENT(_ctrl_msr, _value, "clflushopt %[m]", FEP);	\
+	else if (this_cpu_has(X86_FEATURE_CLFLUSH))				\
+		GUEST_MEASURE_EVENT(_ctrl_msr, _value, "clflush  %[m]", FEP);	\
+	else									\
+		GUEST_MEASURE_EVENT(_ctrl_msr, _value, "nop", FEP);		\
+										\
+	guest_assert_event_count(_idx, _pmc, _pmc_msr);				\
+} while (0)
+
+static void __guest_test_arch_event(uint8_t idx, uint32_t pmc, uint32_t pmc_msr,
+				    uint32_t ctrl_msr, uint64_t ctrl_msr_value)
+{
+	GUEST_TEST_EVENT(idx, pmc, pmc_msr, ctrl_msr, ctrl_msr_value, "");
+
+	if (is_forced_emulation_enabled)
+		GUEST_TEST_EVENT(idx, pmc, pmc_msr, ctrl_msr, ctrl_msr_value, KVM_FEP);
+}
+
+static void guest_test_arch_event(uint8_t idx)
+{
+	uint32_t nr_gp_counters = this_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS);
+	uint32_t pmu_version = guest_get_pmu_version();
+	/* PERF_GLOBAL_CTRL exists only for Architectural PMU Version 2+. */
+	bool guest_has_perf_global_ctrl = pmu_version >= 2;
+	struct kvm_x86_pmu_feature gp_event, fixed_event;
+	uint32_t base_pmc_msr;
+	unsigned int i;
+
+	/* The host side shouldn't invoke this without a guest PMU. */
+	GUEST_ASSERT(pmu_version);
+
+	if (this_cpu_has(X86_FEATURE_PDCM) &&
+	    rdmsr(MSR_IA32_PERF_CAPABILITIES) & PMU_CAP_FW_WRITES)
+		base_pmc_msr = MSR_IA32_PMC0;
+	else
+		base_pmc_msr = MSR_IA32_PERFCTR0;
+
+	gp_event = intel_event_to_feature(idx).gp_event;
+	GUEST_ASSERT_EQ(idx, gp_event.f.bit);
+
+	GUEST_ASSERT(nr_gp_counters);
+
+	for (i = 0; i < nr_gp_counters; i++) {
+		uint64_t eventsel = ARCH_PERFMON_EVENTSEL_OS |
+				    ARCH_PERFMON_EVENTSEL_ENABLE |
+				    intel_pmu_arch_events[idx];
+
+		wrmsr(MSR_P6_EVNTSEL0 + i, 0);
+		if (guest_has_perf_global_ctrl)
+			wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, BIT_ULL(i));
+
+		__guest_test_arch_event(idx, i, base_pmc_msr + i,
+					MSR_P6_EVNTSEL0 + i, eventsel);
+	}
+
+	if (!guest_has_perf_global_ctrl)
+		return;
+
+	fixed_event = intel_event_to_feature(idx).fixed_event;
+	if (pmu_is_null_feature(fixed_event) || !this_pmu_has(fixed_event))
+		return;
+
+	i = fixed_event.f.bit;
+
+	wrmsr(MSR_CORE_PERF_FIXED_CTR_CTRL, FIXED_PMC_CTRL(i, FIXED_PMC_KERNEL));
+
+	__guest_test_arch_event(idx, i | INTEL_RDPMC_FIXED,
+				MSR_CORE_PERF_FIXED_CTR0 + i,
+				MSR_CORE_PERF_GLOBAL_CTRL,
+				FIXED_PMC_GLOBAL_CTRL_ENABLE(i));
+}
+
+static void guest_test_arch_events(void)
+{
+	uint8_t i;
+
+	for (i = 0; i < NR_INTEL_ARCH_EVENTS; i++)
+		guest_test_arch_event(i);
+
+	GUEST_DONE();
+}
+
+static void test_arch_events(uint8_t pmu_version, uint64_t perf_capabilities,
+			     uint8_t length, uint32_t unavailable_mask)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	/* Testing arch events requires a vPMU (there are no negative tests). */
+	if (!pmu_version)
+		return;
+
+	unavailable_mask &= GENMASK(X86_PROPERTY_PMU_EVENTS_MASK.hi_bit,
+				    X86_PROPERTY_PMU_EVENTS_MASK.lo_bit);
+
+	vm = pmu_vm_create_with_one_vcpu(&vcpu, guest_test_arch_events,
+					 pmu_version, perf_capabilities);
+
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH,
+				length);
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_PMU_EVENTS_MASK,
+				unavailable_mask);
+
+	run_vcpu(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+/*
+ * Limit testing to MSRs that are actually defined by Intel (in the SDM).  MSRs
+ * that aren't defined counter MSRs *probably* don't exist, but there's no
+ * guarantee that currently undefined MSR indices won't be used for something
+ * other than PMCs in the future.
+ */
+#define MAX_NR_GP_COUNTERS	8
+#define MAX_NR_FIXED_COUNTERS	3
+
+#define GUEST_ASSERT_PMC_MSR_ACCESS(insn, msr, expect_gp, vector)		\
+__GUEST_ASSERT(expect_gp ? vector == GP_VECTOR : !vector,			\
+	       "Expected %s on " #insn "(0x%x), got %s",			\
+	       expect_gp ? "#GP" : "no fault", msr, ex_str(vector))		\
+
+#define GUEST_ASSERT_PMC_VALUE(insn, msr, val, expected)			\
+	__GUEST_ASSERT(val == expected,					\
+		       "Expected " #insn "(0x%x) to yield 0x%lx, got 0x%lx",	\
+		       msr, expected, val);
+
+static void guest_test_rdpmc(uint32_t rdpmc_idx, bool expect_success,
+			     uint64_t expected_val)
+{
+	uint8_t vector;
+	uint64_t val;
+
+	vector = rdpmc_safe(rdpmc_idx, &val);
+	GUEST_ASSERT_PMC_MSR_ACCESS(RDPMC, rdpmc_idx, !expect_success, vector);
+	if (expect_success)
+		GUEST_ASSERT_PMC_VALUE(RDPMC, rdpmc_idx, val, expected_val);
+
+	if (!is_forced_emulation_enabled)
+		return;
+
+	vector = rdpmc_safe_fep(rdpmc_idx, &val);
+	GUEST_ASSERT_PMC_MSR_ACCESS(RDPMC, rdpmc_idx, !expect_success, vector);
+	if (expect_success)
+		GUEST_ASSERT_PMC_VALUE(RDPMC, rdpmc_idx, val, expected_val);
+}
+
+static void guest_rd_wr_counters(uint32_t base_msr, uint8_t nr_possible_counters,
+				 uint8_t nr_counters, uint32_t or_mask)
+{
+	const bool pmu_has_fast_mode = !guest_get_pmu_version();
+	uint8_t i;
+
+	for (i = 0; i < nr_possible_counters; i++) {
+		/*
+		 * TODO: Test a value that validates full-width writes and the
+		 * width of the counters.
+		 */
+		const uint64_t test_val = 0xffff;
+		const uint32_t msr = base_msr + i;
+
+		/*
+		 * Fixed counters are supported if the counter is less than the
+		 * number of enumerated contiguous counters *or* the counter is
+		 * explicitly enumerated in the supported counters mask.
+		 */
+		const bool expect_success = i < nr_counters || (or_mask & BIT(i));
+
+		/*
+		 * KVM drops writes to MSR_P6_PERFCTR[0|1] if the counters are
+		 * unsupported, i.e. doesn't #GP and reads back '0'.
+		 */
+		const uint64_t expected_val = expect_success ? test_val : 0;
+		const bool expect_gp = !expect_success && msr != MSR_P6_PERFCTR0 &&
+				       msr != MSR_P6_PERFCTR1;
+		uint32_t rdpmc_idx;
+		uint8_t vector;
+		uint64_t val;
+
+		vector = wrmsr_safe(msr, test_val);
+		GUEST_ASSERT_PMC_MSR_ACCESS(WRMSR, msr, expect_gp, vector);
+
+		vector = rdmsr_safe(msr, &val);
+		GUEST_ASSERT_PMC_MSR_ACCESS(RDMSR, msr, expect_gp, vector);
+
+		/* On #GP, the result of RDMSR is undefined. */
+		if (!expect_gp)
+			GUEST_ASSERT_PMC_VALUE(RDMSR, msr, val, expected_val);
+
+		/*
+		 * Redo the read tests with RDPMC, which has different indexing
+		 * semantics and additional capabilities.
+		 */
+		rdpmc_idx = i;
+		if (base_msr == MSR_CORE_PERF_FIXED_CTR0)
+			rdpmc_idx |= INTEL_RDPMC_FIXED;
+
+		guest_test_rdpmc(rdpmc_idx, expect_success, expected_val);
+
+		/*
+		 * KVM doesn't support non-architectural PMUs, i.e. it should
+		 * impossible to have fast mode RDPMC.  Verify that attempting
+		 * to use fast RDPMC always #GPs.
+		 */
+		GUEST_ASSERT(!expect_success || !pmu_has_fast_mode);
+		rdpmc_idx |= INTEL_RDPMC_FAST;
+		guest_test_rdpmc(rdpmc_idx, false, -1ull);
+
+		vector = wrmsr_safe(msr, 0);
+		GUEST_ASSERT_PMC_MSR_ACCESS(WRMSR, msr, expect_gp, vector);
+	}
+}
+
+static void guest_test_gp_counters(void)
+{
+	uint8_t pmu_version = guest_get_pmu_version();
+	uint8_t nr_gp_counters = 0;
+	uint32_t base_msr;
+
+	if (pmu_version)
+		nr_gp_counters = this_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS);
+
+	/*
+	 * For v2+ PMUs, PERF_GLOBAL_CTRL's architectural post-RESET value is
+	 * "Sets bits n-1:0 and clears the upper bits", where 'n' is the number
+	 * of GP counters.  If there are no GP counters, require KVM to leave
+	 * PERF_GLOBAL_CTRL '0'.  This edge case isn't covered by the SDM, but
+	 * follow the spirit of the architecture and only globally enable GP
+	 * counters, of which there are none.
+	 */
+	if (pmu_version > 1) {
+		uint64_t global_ctrl = rdmsr(MSR_CORE_PERF_GLOBAL_CTRL);
+
+		if (nr_gp_counters)
+			GUEST_ASSERT_EQ(global_ctrl, GENMASK_ULL(nr_gp_counters - 1, 0));
+		else
+			GUEST_ASSERT_EQ(global_ctrl, 0);
+	}
+
+	if (this_cpu_has(X86_FEATURE_PDCM) &&
+	    rdmsr(MSR_IA32_PERF_CAPABILITIES) & PMU_CAP_FW_WRITES)
+		base_msr = MSR_IA32_PMC0;
+	else
+		base_msr = MSR_IA32_PERFCTR0;
+
+	guest_rd_wr_counters(base_msr, MAX_NR_GP_COUNTERS, nr_gp_counters, 0);
+	GUEST_DONE();
+}
+
+static void test_gp_counters(uint8_t pmu_version, uint64_t perf_capabilities,
+			     uint8_t nr_gp_counters)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = pmu_vm_create_with_one_vcpu(&vcpu, guest_test_gp_counters,
+					 pmu_version, perf_capabilities);
+
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_PMU_NR_GP_COUNTERS,
+				nr_gp_counters);
+
+	run_vcpu(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+static void guest_test_fixed_counters(void)
+{
+	uint64_t supported_bitmask = 0;
+	uint8_t nr_fixed_counters = 0;
+	uint8_t i;
+
+	/* Fixed counters require Architectural vPMU Version 2+. */
+	if (guest_get_pmu_version() >= 2)
+		nr_fixed_counters = this_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+
+	/*
+	 * The supported bitmask for fixed counters was introduced in PMU
+	 * version 5.
+	 */
+	if (guest_get_pmu_version() >= 5)
+		supported_bitmask = this_cpu_property(X86_PROPERTY_PMU_FIXED_COUNTERS_BITMASK);
+
+	guest_rd_wr_counters(MSR_CORE_PERF_FIXED_CTR0, MAX_NR_FIXED_COUNTERS,
+			     nr_fixed_counters, supported_bitmask);
+
+	for (i = 0; i < MAX_NR_FIXED_COUNTERS; i++) {
+		uint8_t vector;
+		uint64_t val;
+
+		if (i >= nr_fixed_counters && !(supported_bitmask & BIT_ULL(i))) {
+			vector = wrmsr_safe(MSR_CORE_PERF_FIXED_CTR_CTRL,
+					    FIXED_PMC_CTRL(i, FIXED_PMC_KERNEL));
+			__GUEST_ASSERT(vector == GP_VECTOR,
+				       "Expected #GP for counter %u in FIXED_CTR_CTRL", i);
+
+			vector = wrmsr_safe(MSR_CORE_PERF_GLOBAL_CTRL,
+					    FIXED_PMC_GLOBAL_CTRL_ENABLE(i));
+			__GUEST_ASSERT(vector == GP_VECTOR,
+				       "Expected #GP for counter %u in PERF_GLOBAL_CTRL", i);
+			continue;
+		}
+
+		wrmsr(MSR_CORE_PERF_FIXED_CTR0 + i, 0);
+		wrmsr(MSR_CORE_PERF_FIXED_CTR_CTRL, FIXED_PMC_CTRL(i, FIXED_PMC_KERNEL));
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, FIXED_PMC_GLOBAL_CTRL_ENABLE(i));
+		__asm__ __volatile__("loop ." : "+c"((int){NUM_LOOPS}));
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+		val = rdmsr(MSR_CORE_PERF_FIXED_CTR0 + i);
+
+		GUEST_ASSERT_NE(val, 0);
+	}
+	GUEST_DONE();
+}
+
+static void test_fixed_counters(uint8_t pmu_version, uint64_t perf_capabilities,
+				uint8_t nr_fixed_counters,
+				uint32_t supported_bitmask)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = pmu_vm_create_with_one_vcpu(&vcpu, guest_test_fixed_counters,
+					 pmu_version, perf_capabilities);
+
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_PMU_FIXED_COUNTERS_BITMASK,
+				supported_bitmask);
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_PMU_NR_FIXED_COUNTERS,
+				nr_fixed_counters);
+
+	run_vcpu(vcpu);
+
+	kvm_vm_free(vm);
+}
+
+static void test_intel_counters(void)
+{
+	uint8_t nr_fixed_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+	uint8_t nr_gp_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS);
+	uint8_t pmu_version = kvm_cpu_property(X86_PROPERTY_PMU_VERSION);
+	unsigned int i;
+	uint8_t v, j;
+	uint32_t k;
+
+	const uint64_t perf_caps[] = {
+		0,
+		PMU_CAP_FW_WRITES,
+	};
+
+	/*
+	 * To keep the total runtime reasonable, test only a handful of select,
+	 * semi-arbitrary values for the mask of unavailable PMU events.  Test
+	 * 0 (all events available) and all ones (no events available) as well
+	 * as alternating bit sequencues, e.g. to detect if KVM is checking the
+	 * wrong bit(s).
+	 */
+	const uint32_t unavailable_masks[] = {
+		0x0,
+		0xffffffffu,
+		0xaaaaaaaau,
+		0x55555555u,
+		0xf0f0f0f0u,
+		0x0f0f0f0fu,
+		0xa0a0a0a0u,
+		0x0a0a0a0au,
+		0x50505050u,
+		0x05050505u,
+	};
+
+	/*
+	 * Test up to PMU v5, which is the current maximum version defined by
+	 * Intel, i.e. is the last version that is guaranteed to be backwards
+	 * compatible with KVM's existing behavior.
+	 */
+	uint8_t max_pmu_version = max_t(typeof(pmu_version), pmu_version, 5);
+
+	/*
+	 * Detect the existence of events that aren't supported by selftests.
+	 * This will (obviously) fail any time hardware adds support for a new
+	 * event, but it's worth paying that price to keep the test fresh.
+	 */
+	TEST_ASSERT(this_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH) <= NR_INTEL_ARCH_EVENTS,
+		    "New architectural event(s) detected; please update this test (length = %u, mask = %x)",
+		    this_cpu_property(X86_PROPERTY_PMU_EBX_BIT_VECTOR_LENGTH),
+		    this_cpu_property(X86_PROPERTY_PMU_EVENTS_MASK));
+
+	/*
+	 * Iterate over known arch events irrespective of KVM/hardware support
+	 * to verify that KVM doesn't reject programming of events just because
+	 * the *architectural* encoding is unsupported.  Track which events are
+	 * supported in hardware; the guest side will validate supported events
+	 * count correctly, even if *enumeration* of the event is unsupported
+	 * by KVM and/or isn't exposed to the guest.
+	 */
+	for (i = 0; i < NR_INTEL_ARCH_EVENTS; i++) {
+		if (this_pmu_has(intel_event_to_feature(i).gp_event))
+			hardware_pmu_arch_events |= BIT(i);
+	}
+
+	for (v = 0; v <= max_pmu_version; v++) {
+		for (i = 0; i < ARRAY_SIZE(perf_caps); i++) {
+			if (!kvm_has_perf_caps && perf_caps[i])
+				continue;
+
+			pr_info("Testing arch events, PMU version %u, perf_caps = %lx\n",
+				v, perf_caps[i]);
+
+			/*
+			 * Test single bits for all PMU version and lengths up
+			 * the number of events +1 (to verify KVM doesn't do
+			 * weird things if the guest length is greater than the
+			 * host length).  Explicitly test a mask of '0' and all
+			 * ones i.e. all events being available and unavailable.
+			 */
+			for (j = 0; j <= NR_INTEL_ARCH_EVENTS + 1; j++) {
+				for (k = 1; k < ARRAY_SIZE(unavailable_masks); k++)
+					test_arch_events(v, perf_caps[i], j, unavailable_masks[k]);
+			}
+
+			pr_info("Testing GP counters, PMU version %u, perf_caps = %lx\n",
+				v, perf_caps[i]);
+			for (j = 0; j <= nr_gp_counters; j++)
+				test_gp_counters(v, perf_caps[i], j);
+
+			pr_info("Testing fixed counters, PMU version %u, perf_caps = %lx\n",
+				v, perf_caps[i]);
+			for (j = 0; j <= nr_fixed_counters; j++) {
+				for (k = 0; k <= (BIT(nr_fixed_counters) - 1); k++)
+					test_fixed_counters(v, perf_caps[i], j, k);
+			}
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_is_pmu_enabled());
+
+	TEST_REQUIRE(host_cpu_is_intel);
+	TEST_REQUIRE(kvm_cpu_has_p(X86_PROPERTY_PMU_VERSION));
+	TEST_REQUIRE(kvm_cpu_property(X86_PROPERTY_PMU_VERSION) > 0);
+
+	kvm_pmu_version = kvm_cpu_property(X86_PROPERTY_PMU_VERSION);
+	kvm_has_perf_caps = kvm_cpu_has(X86_FEATURE_PDCM);
+
+	test_intel_counters();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/pmu_event_filter_test.c b/tools/testing/selftests/kvm/x86/pmu_event_filter_test.c
new file mode 100644
index 000000000000..1c5b7611db24
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/pmu_event_filter_test.c
@@ -0,0 +1,878 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for x86 KVM_SET_PMU_EVENT_FILTER.
+ *
+ * Copyright (C) 2022, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * Verifies the expected behavior of allow lists and deny lists for
+ * virtual PMU events.
+ */
+#include "kvm_util.h"
+#include "pmu.h"
+#include "processor.h"
+#include "test_util.h"
+
+#define NUM_BRANCHES 42
+#define MAX_TEST_EVENTS		10
+
+#define PMU_EVENT_FILTER_INVALID_ACTION		(KVM_PMU_EVENT_DENY + 1)
+#define PMU_EVENT_FILTER_INVALID_FLAGS			(KVM_PMU_EVENT_FLAGS_VALID_MASK << 1)
+#define PMU_EVENT_FILTER_INVALID_NEVENTS		(KVM_PMU_EVENT_FILTER_MAX_EVENTS + 1)
+
+struct __kvm_pmu_event_filter {
+	__u32 action;
+	__u32 nevents;
+	__u32 fixed_counter_bitmap;
+	__u32 flags;
+	__u32 pad[4];
+	__u64 events[KVM_PMU_EVENT_FILTER_MAX_EVENTS];
+};
+
+/*
+ * This event list comprises Intel's known architectural events, plus AMD's
+ * Branch Instructions Retired for Zen CPUs.  Note, AMD and Intel use the
+ * same encoding for Instructions Retired.
+ */
+kvm_static_assert(INTEL_ARCH_INSTRUCTIONS_RETIRED == AMD_ZEN_INSTRUCTIONS_RETIRED);
+
+static const struct __kvm_pmu_event_filter base_event_filter = {
+	.nevents = ARRAY_SIZE(base_event_filter.events),
+	.events = {
+		INTEL_ARCH_CPU_CYCLES,
+		INTEL_ARCH_INSTRUCTIONS_RETIRED,
+		INTEL_ARCH_REFERENCE_CYCLES,
+		INTEL_ARCH_LLC_REFERENCES,
+		INTEL_ARCH_LLC_MISSES,
+		INTEL_ARCH_BRANCHES_RETIRED,
+		INTEL_ARCH_BRANCHES_MISPREDICTED,
+		INTEL_ARCH_TOPDOWN_SLOTS,
+		AMD_ZEN_BRANCHES_RETIRED,
+	},
+};
+
+struct {
+	uint64_t loads;
+	uint64_t stores;
+	uint64_t loads_stores;
+	uint64_t branches_retired;
+	uint64_t instructions_retired;
+} pmc_results;
+
+/*
+ * If we encounter a #GP during the guest PMU sanity check, then the guest
+ * PMU is not functional. Inform the hypervisor via GUEST_SYNC(0).
+ */
+static void guest_gp_handler(struct ex_regs *regs)
+{
+	GUEST_SYNC(-EFAULT);
+}
+
+/*
+ * Check that we can write a new value to the given MSR and read it back.
+ * The caller should provide a non-empty set of bits that are safe to flip.
+ *
+ * Return on success. GUEST_SYNC(0) on error.
+ */
+static void check_msr(uint32_t msr, uint64_t bits_to_flip)
+{
+	uint64_t v = rdmsr(msr) ^ bits_to_flip;
+
+	wrmsr(msr, v);
+	if (rdmsr(msr) != v)
+		GUEST_SYNC(-EIO);
+
+	v ^= bits_to_flip;
+	wrmsr(msr, v);
+	if (rdmsr(msr) != v)
+		GUEST_SYNC(-EIO);
+}
+
+static void run_and_measure_loop(uint32_t msr_base)
+{
+	const uint64_t branches_retired = rdmsr(msr_base + 0);
+	const uint64_t insn_retired = rdmsr(msr_base + 1);
+
+	__asm__ __volatile__("loop ." : "+c"((int){NUM_BRANCHES}));
+
+	pmc_results.branches_retired = rdmsr(msr_base + 0) - branches_retired;
+	pmc_results.instructions_retired = rdmsr(msr_base + 1) - insn_retired;
+}
+
+static void intel_guest_code(void)
+{
+	check_msr(MSR_CORE_PERF_GLOBAL_CTRL, 1);
+	check_msr(MSR_P6_EVNTSEL0, 0xffff);
+	check_msr(MSR_IA32_PMC0, 0xffff);
+	GUEST_SYNC(0);
+
+	for (;;) {
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+		wrmsr(MSR_P6_EVNTSEL0, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | INTEL_ARCH_BRANCHES_RETIRED);
+		wrmsr(MSR_P6_EVNTSEL1, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | INTEL_ARCH_INSTRUCTIONS_RETIRED);
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0x3);
+
+		run_and_measure_loop(MSR_IA32_PMC0);
+		GUEST_SYNC(0);
+	}
+}
+
+/*
+ * To avoid needing a check for CPUID.80000001:ECX.PerfCtrExtCore[bit 23],
+ * this code uses the always-available, legacy K7 PMU MSRs, which alias to
+ * the first four of the six extended core PMU MSRs.
+ */
+static void amd_guest_code(void)
+{
+	check_msr(MSR_K7_EVNTSEL0, 0xffff);
+	check_msr(MSR_K7_PERFCTR0, 0xffff);
+	GUEST_SYNC(0);
+
+	for (;;) {
+		wrmsr(MSR_K7_EVNTSEL0, 0);
+		wrmsr(MSR_K7_EVNTSEL0, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | AMD_ZEN_BRANCHES_RETIRED);
+		wrmsr(MSR_K7_EVNTSEL1, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | AMD_ZEN_INSTRUCTIONS_RETIRED);
+
+		run_and_measure_loop(MSR_K7_PERFCTR0);
+		GUEST_SYNC(0);
+	}
+}
+
+/*
+ * Run the VM to the next GUEST_SYNC(value), and return the value passed
+ * to the sync. Any other exit from the guest is fatal.
+ */
+static uint64_t run_vcpu_to_sync(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	get_ucall(vcpu, &uc);
+	TEST_ASSERT(uc.cmd == UCALL_SYNC,
+		    "Received ucall other than UCALL_SYNC: %lu", uc.cmd);
+	return uc.args[1];
+}
+
+static void run_vcpu_and_sync_pmc_results(struct kvm_vcpu *vcpu)
+{
+	uint64_t r;
+
+	memset(&pmc_results, 0, sizeof(pmc_results));
+	sync_global_to_guest(vcpu->vm, pmc_results);
+
+	r = run_vcpu_to_sync(vcpu);
+	TEST_ASSERT(!r, "Unexpected sync value: 0x%lx", r);
+
+	sync_global_from_guest(vcpu->vm, pmc_results);
+}
+
+/*
+ * In a nested environment or if the vPMU is disabled, the guest PMU
+ * might not work as architected (accessing the PMU MSRs may raise
+ * #GP, or writes could simply be discarded). In those situations,
+ * there is no point in running these tests. The guest code will perform
+ * a sanity check and then GUEST_SYNC(success). In the case of failure,
+ * the behavior of the guest on resumption is undefined.
+ */
+static bool sanity_check_pmu(struct kvm_vcpu *vcpu)
+{
+	uint64_t r;
+
+	vm_install_exception_handler(vcpu->vm, GP_VECTOR, guest_gp_handler);
+	r = run_vcpu_to_sync(vcpu);
+	vm_install_exception_handler(vcpu->vm, GP_VECTOR, NULL);
+
+	return !r;
+}
+
+/*
+ * Remove the first occurrence of 'event' (if any) from the filter's
+ * event list.
+ */
+static void remove_event(struct __kvm_pmu_event_filter *f, uint64_t event)
+{
+	bool found = false;
+	int i;
+
+	for (i = 0; i < f->nevents; i++) {
+		if (found)
+			f->events[i - 1] = f->events[i];
+		else
+			found = f->events[i] == event;
+	}
+	if (found)
+		f->nevents--;
+}
+
+#define ASSERT_PMC_COUNTING_INSTRUCTIONS()						\
+do {											\
+	uint64_t br = pmc_results.branches_retired;					\
+	uint64_t ir = pmc_results.instructions_retired;					\
+	bool br_matched = this_pmu_has_errata(BRANCHES_RETIRED_OVERCOUNT) ?		\
+			  br >= NUM_BRANCHES : br == NUM_BRANCHES;			\
+											\
+	if (br && !br_matched)								\
+		pr_info("%s: Branch instructions retired = %lu (expected %u)\n",	\
+			__func__, br, NUM_BRANCHES);					\
+	TEST_ASSERT(br, "%s: Branch instructions retired = %lu (expected > 0)",		\
+		    __func__, br);							\
+	TEST_ASSERT(ir,	"%s: Instructions retired = %lu (expected > 0)",		\
+		    __func__, ir);							\
+} while (0)
+
+#define ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS()						\
+do {											\
+	uint64_t br = pmc_results.branches_retired;					\
+	uint64_t ir = pmc_results.instructions_retired;					\
+											\
+	TEST_ASSERT(!br, "%s: Branch instructions retired = %lu (expected 0)",		\
+		    __func__, br);							\
+	TEST_ASSERT(!ir, "%s: Instructions retired = %lu (expected 0)",			\
+		    __func__, ir);							\
+} while (0)
+
+static void test_without_filter(struct kvm_vcpu *vcpu)
+{
+	run_vcpu_and_sync_pmc_results(vcpu);
+
+	ASSERT_PMC_COUNTING_INSTRUCTIONS();
+}
+
+static void test_with_filter(struct kvm_vcpu *vcpu,
+			     struct __kvm_pmu_event_filter *__f)
+{
+	struct kvm_pmu_event_filter *f = (void *)__f;
+
+	vm_ioctl(vcpu->vm, KVM_SET_PMU_EVENT_FILTER, f);
+	run_vcpu_and_sync_pmc_results(vcpu);
+}
+
+static void test_amd_deny_list(struct kvm_vcpu *vcpu)
+{
+	struct __kvm_pmu_event_filter f = {
+		.action = KVM_PMU_EVENT_DENY,
+		.nevents = 1,
+		.events = {
+			RAW_EVENT(0x1C2, 0),
+		},
+	};
+
+	test_with_filter(vcpu, &f);
+
+	ASSERT_PMC_COUNTING_INSTRUCTIONS();
+}
+
+static void test_member_deny_list(struct kvm_vcpu *vcpu)
+{
+	struct __kvm_pmu_event_filter f = base_event_filter;
+
+	f.action = KVM_PMU_EVENT_DENY;
+	test_with_filter(vcpu, &f);
+
+	ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS();
+}
+
+static void test_member_allow_list(struct kvm_vcpu *vcpu)
+{
+	struct __kvm_pmu_event_filter f = base_event_filter;
+
+	f.action = KVM_PMU_EVENT_ALLOW;
+	test_with_filter(vcpu, &f);
+
+	ASSERT_PMC_COUNTING_INSTRUCTIONS();
+}
+
+static void test_not_member_deny_list(struct kvm_vcpu *vcpu)
+{
+	struct __kvm_pmu_event_filter f = base_event_filter;
+
+	f.action = KVM_PMU_EVENT_DENY;
+
+	remove_event(&f, INTEL_ARCH_INSTRUCTIONS_RETIRED);
+	remove_event(&f, INTEL_ARCH_BRANCHES_RETIRED);
+	remove_event(&f, AMD_ZEN_BRANCHES_RETIRED);
+	test_with_filter(vcpu, &f);
+
+	ASSERT_PMC_COUNTING_INSTRUCTIONS();
+}
+
+static void test_not_member_allow_list(struct kvm_vcpu *vcpu)
+{
+	struct __kvm_pmu_event_filter f = base_event_filter;
+
+	f.action = KVM_PMU_EVENT_ALLOW;
+
+	remove_event(&f, INTEL_ARCH_INSTRUCTIONS_RETIRED);
+	remove_event(&f, INTEL_ARCH_BRANCHES_RETIRED);
+	remove_event(&f, AMD_ZEN_BRANCHES_RETIRED);
+	test_with_filter(vcpu, &f);
+
+	ASSERT_PMC_NOT_COUNTING_INSTRUCTIONS();
+}
+
+/*
+ * Verify that setting KVM_PMU_CAP_DISABLE prevents the use of the PMU.
+ *
+ * Note that KVM_CAP_PMU_CAPABILITY must be invoked prior to creating VCPUs.
+ */
+static void test_pmu_config_disable(void (*guest_code)(void))
+{
+	struct kvm_vcpu *vcpu;
+	int r;
+	struct kvm_vm *vm;
+
+	r = kvm_check_cap(KVM_CAP_PMU_CAPABILITY);
+	if (!(r & KVM_PMU_CAP_DISABLE))
+		return;
+
+	vm = vm_create(1);
+
+	vm_enable_cap(vm, KVM_CAP_PMU_CAPABILITY, KVM_PMU_CAP_DISABLE);
+
+	vcpu = vm_vcpu_add(vm, 0, guest_code);
+	TEST_ASSERT(!sanity_check_pmu(vcpu),
+		    "Guest should not be able to use disabled PMU.");
+
+	kvm_vm_free(vm);
+}
+
+/*
+ * On Intel, check for a non-zero PMU version, at least one general-purpose
+ * counter per logical processor, and support for counting the number of branch
+ * instructions retired.
+ */
+static bool use_intel_pmu(void)
+{
+	return host_cpu_is_intel &&
+	       kvm_cpu_property(X86_PROPERTY_PMU_VERSION) &&
+	       kvm_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS) &&
+	       kvm_pmu_has(X86_PMU_FEATURE_BRANCH_INSNS_RETIRED);
+}
+
+/*
+ * On AMD, all Family 17h+ CPUs (Zen and its successors) use event encoding
+ * 0xc2,0 for Branch Instructions Retired.
+ */
+static bool use_amd_pmu(void)
+{
+	return host_cpu_is_amd && kvm_cpu_family() >= 0x17;
+}
+
+/*
+ * "MEM_INST_RETIRED.ALL_LOADS", "MEM_INST_RETIRED.ALL_STORES", and
+ * "MEM_INST_RETIRED.ANY" from https://perfmon-events.intel.com/
+ * supported on Intel Xeon processors:
+ *  - Sapphire Rapids, Ice Lake, Cascade Lake, Skylake.
+ */
+#define MEM_INST_RETIRED		0xD0
+#define MEM_INST_RETIRED_LOAD		RAW_EVENT(MEM_INST_RETIRED, 0x81)
+#define MEM_INST_RETIRED_STORE		RAW_EVENT(MEM_INST_RETIRED, 0x82)
+#define MEM_INST_RETIRED_LOAD_STORE	RAW_EVENT(MEM_INST_RETIRED, 0x83)
+
+static bool supports_event_mem_inst_retired(void)
+{
+	uint32_t eax, ebx, ecx, edx;
+
+	cpuid(1, &eax, &ebx, &ecx, &edx);
+	if (x86_family(eax) == 0x6) {
+		switch (x86_model(eax)) {
+		/* Sapphire Rapids */
+		case 0x8F:
+		/* Ice Lake */
+		case 0x6A:
+		/* Skylake */
+		/* Cascade Lake */
+		case 0x55:
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/*
+ * "LS Dispatch", from Processor Programming Reference
+ * (PPR) for AMD Family 17h Model 01h, Revision B1 Processors,
+ * Preliminary Processor Programming Reference (PPR) for AMD Family
+ * 17h Model 31h, Revision B0 Processors, and Preliminary Processor
+ * Programming Reference (PPR) for AMD Family 19h Model 01h, Revision
+ * B1 Processors Volume 1 of 2.
+ */
+#define LS_DISPATCH		0x29
+#define LS_DISPATCH_LOAD	RAW_EVENT(LS_DISPATCH, BIT(0))
+#define LS_DISPATCH_STORE	RAW_EVENT(LS_DISPATCH, BIT(1))
+#define LS_DISPATCH_LOAD_STORE	RAW_EVENT(LS_DISPATCH, BIT(2))
+
+#define INCLUDE_MASKED_ENTRY(event_select, mask, match) \
+	KVM_PMU_ENCODE_MASKED_ENTRY(event_select, mask, match, false)
+#define EXCLUDE_MASKED_ENTRY(event_select, mask, match) \
+	KVM_PMU_ENCODE_MASKED_ENTRY(event_select, mask, match, true)
+
+static void masked_events_guest_test(uint32_t msr_base)
+{
+	/*
+	 * The actual value of the counters don't determine the outcome of
+	 * the test.  Only that they are zero or non-zero.
+	 */
+	const uint64_t loads = rdmsr(msr_base + 0);
+	const uint64_t stores = rdmsr(msr_base + 1);
+	const uint64_t loads_stores = rdmsr(msr_base + 2);
+	int val;
+
+
+	__asm__ __volatile__("movl $0, %[v];"
+			     "movl %[v], %%eax;"
+			     "incl %[v];"
+			     : [v]"+m"(val) :: "eax");
+
+	pmc_results.loads = rdmsr(msr_base + 0) - loads;
+	pmc_results.stores = rdmsr(msr_base + 1) - stores;
+	pmc_results.loads_stores = rdmsr(msr_base + 2) - loads_stores;
+}
+
+static void intel_masked_events_guest_code(void)
+{
+	for (;;) {
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+
+		wrmsr(MSR_P6_EVNTSEL0 + 0, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | MEM_INST_RETIRED_LOAD);
+		wrmsr(MSR_P6_EVNTSEL0 + 1, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | MEM_INST_RETIRED_STORE);
+		wrmsr(MSR_P6_EVNTSEL0 + 2, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | MEM_INST_RETIRED_LOAD_STORE);
+
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0x7);
+
+		masked_events_guest_test(MSR_IA32_PMC0);
+		GUEST_SYNC(0);
+	}
+}
+
+static void amd_masked_events_guest_code(void)
+{
+	for (;;) {
+		wrmsr(MSR_K7_EVNTSEL0, 0);
+		wrmsr(MSR_K7_EVNTSEL1, 0);
+		wrmsr(MSR_K7_EVNTSEL2, 0);
+
+		wrmsr(MSR_K7_EVNTSEL0, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | LS_DISPATCH_LOAD);
+		wrmsr(MSR_K7_EVNTSEL1, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | LS_DISPATCH_STORE);
+		wrmsr(MSR_K7_EVNTSEL2, ARCH_PERFMON_EVENTSEL_ENABLE |
+		      ARCH_PERFMON_EVENTSEL_OS | LS_DISPATCH_LOAD_STORE);
+
+		masked_events_guest_test(MSR_K7_PERFCTR0);
+		GUEST_SYNC(0);
+	}
+}
+
+static void run_masked_events_test(struct kvm_vcpu *vcpu,
+				   const uint64_t masked_events[],
+				   const int nmasked_events)
+{
+	struct __kvm_pmu_event_filter f = {
+		.nevents = nmasked_events,
+		.action = KVM_PMU_EVENT_ALLOW,
+		.flags = KVM_PMU_EVENT_FLAG_MASKED_EVENTS,
+	};
+
+	memcpy(f.events, masked_events, sizeof(uint64_t) * nmasked_events);
+	test_with_filter(vcpu, &f);
+}
+
+#define ALLOW_LOADS		BIT(0)
+#define ALLOW_STORES		BIT(1)
+#define ALLOW_LOADS_STORES	BIT(2)
+
+struct masked_events_test {
+	uint64_t intel_events[MAX_TEST_EVENTS];
+	uint64_t intel_event_end;
+	uint64_t amd_events[MAX_TEST_EVENTS];
+	uint64_t amd_event_end;
+	const char *msg;
+	uint32_t flags;
+};
+
+/*
+ * These are the test cases for the masked events tests.
+ *
+ * For each test, the guest enables 3 PMU counters (loads, stores,
+ * loads + stores).  The filter is then set in KVM with the masked events
+ * provided.  The test then verifies that the counters agree with which
+ * ones should be counting and which ones should be filtered.
+ */
+const struct masked_events_test test_cases[] = {
+	{
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFF, 0x81),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xFF, BIT(0)),
+		},
+		.msg = "Only allow loads.",
+		.flags = ALLOW_LOADS,
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFF, 0x82),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xFF, BIT(1)),
+		},
+		.msg = "Only allow stores.",
+		.flags = ALLOW_STORES,
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFF, 0x83),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xFF, BIT(2)),
+		},
+		.msg = "Only allow loads + stores.",
+		.flags = ALLOW_LOADS_STORES,
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0x7C, 0),
+			EXCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFF, 0x83),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, ~(BIT(0) | BIT(1)), 0),
+		},
+		.msg = "Only allow loads and stores.",
+		.flags = ALLOW_LOADS | ALLOW_STORES,
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0x7C, 0),
+			EXCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFF, 0x82),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xF8, 0),
+			EXCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xFF, BIT(1)),
+		},
+		.msg = "Only allow loads and loads + stores.",
+		.flags = ALLOW_LOADS | ALLOW_LOADS_STORES
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0xFE, 0x82),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xF8, 0),
+			EXCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xFF, BIT(0)),
+		},
+		.msg = "Only allow stores and loads + stores.",
+		.flags = ALLOW_STORES | ALLOW_LOADS_STORES
+	}, {
+		.intel_events = {
+			INCLUDE_MASKED_ENTRY(MEM_INST_RETIRED, 0x7C, 0),
+		},
+		.amd_events = {
+			INCLUDE_MASKED_ENTRY(LS_DISPATCH, 0xF8, 0),
+		},
+		.msg = "Only allow loads, stores, and loads + stores.",
+		.flags = ALLOW_LOADS | ALLOW_STORES | ALLOW_LOADS_STORES
+	},
+};
+
+static int append_test_events(const struct masked_events_test *test,
+			      uint64_t *events, int nevents)
+{
+	const uint64_t *evts;
+	int i;
+
+	evts = use_intel_pmu() ? test->intel_events : test->amd_events;
+	for (i = 0; i < MAX_TEST_EVENTS; i++) {
+		if (evts[i] == 0)
+			break;
+
+		events[nevents + i] = evts[i];
+	}
+
+	return nevents + i;
+}
+
+static bool bool_eq(bool a, bool b)
+{
+	return a == b;
+}
+
+static void run_masked_events_tests(struct kvm_vcpu *vcpu, uint64_t *events,
+				    int nevents)
+{
+	int ntests = ARRAY_SIZE(test_cases);
+	int i, n;
+
+	for (i = 0; i < ntests; i++) {
+		const struct masked_events_test *test = &test_cases[i];
+
+		/* Do any test case events overflow MAX_TEST_EVENTS? */
+		assert(test->intel_event_end == 0);
+		assert(test->amd_event_end == 0);
+
+		n = append_test_events(test, events, nevents);
+
+		run_masked_events_test(vcpu, events, n);
+
+		TEST_ASSERT(bool_eq(pmc_results.loads, test->flags & ALLOW_LOADS) &&
+			    bool_eq(pmc_results.stores, test->flags & ALLOW_STORES) &&
+			    bool_eq(pmc_results.loads_stores,
+				    test->flags & ALLOW_LOADS_STORES),
+			    "%s  loads: %lu, stores: %lu, loads + stores: %lu",
+			    test->msg, pmc_results.loads, pmc_results.stores,
+			    pmc_results.loads_stores);
+	}
+}
+
+static void add_dummy_events(uint64_t *events, int nevents)
+{
+	int i;
+
+	for (i = 0; i < nevents; i++) {
+		int event_select = i % 0xFF;
+		bool exclude = ((i % 4) == 0);
+
+		if (event_select == MEM_INST_RETIRED ||
+		    event_select == LS_DISPATCH)
+			event_select++;
+
+		events[i] = KVM_PMU_ENCODE_MASKED_ENTRY(event_select, 0,
+							0, exclude);
+	}
+}
+
+static void test_masked_events(struct kvm_vcpu *vcpu)
+{
+	int nevents = KVM_PMU_EVENT_FILTER_MAX_EVENTS - MAX_TEST_EVENTS;
+	uint64_t events[KVM_PMU_EVENT_FILTER_MAX_EVENTS];
+
+	/* Run the test cases against a sparse PMU event filter. */
+	run_masked_events_tests(vcpu, events, 0);
+
+	/* Run the test cases against a dense PMU event filter. */
+	add_dummy_events(events, KVM_PMU_EVENT_FILTER_MAX_EVENTS);
+	run_masked_events_tests(vcpu, events, nevents);
+}
+
+static int set_pmu_event_filter(struct kvm_vcpu *vcpu,
+				struct __kvm_pmu_event_filter *__f)
+{
+	struct kvm_pmu_event_filter *f = (void *)__f;
+
+	return __vm_ioctl(vcpu->vm, KVM_SET_PMU_EVENT_FILTER, f);
+}
+
+static int set_pmu_single_event_filter(struct kvm_vcpu *vcpu, uint64_t event,
+				       uint32_t flags, uint32_t action)
+{
+	struct __kvm_pmu_event_filter f = {
+		.nevents = 1,
+		.flags = flags,
+		.action = action,
+		.events = {
+			event,
+		},
+	};
+
+	return set_pmu_event_filter(vcpu, &f);
+}
+
+static void test_filter_ioctl(struct kvm_vcpu *vcpu)
+{
+	uint8_t nr_fixed_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+	struct __kvm_pmu_event_filter f;
+	uint64_t e = ~0ul;
+	int r;
+
+	/*
+	 * Unfortunately having invalid bits set in event data is expected to
+	 * pass when flags == 0 (bits other than eventsel+umask).
+	 */
+	r = set_pmu_single_event_filter(vcpu, e, 0, KVM_PMU_EVENT_ALLOW);
+	TEST_ASSERT(r == 0, "Valid PMU Event Filter is failing");
+
+	r = set_pmu_single_event_filter(vcpu, e,
+					KVM_PMU_EVENT_FLAG_MASKED_EVENTS,
+					KVM_PMU_EVENT_ALLOW);
+	TEST_ASSERT(r != 0, "Invalid PMU Event Filter is expected to fail");
+
+	e = KVM_PMU_ENCODE_MASKED_ENTRY(0xff, 0xff, 0xff, 0xf);
+	r = set_pmu_single_event_filter(vcpu, e,
+					KVM_PMU_EVENT_FLAG_MASKED_EVENTS,
+					KVM_PMU_EVENT_ALLOW);
+	TEST_ASSERT(r == 0, "Valid PMU Event Filter is failing");
+
+	f = base_event_filter;
+	f.action = PMU_EVENT_FILTER_INVALID_ACTION;
+	r = set_pmu_event_filter(vcpu, &f);
+	TEST_ASSERT(r, "Set invalid action is expected to fail");
+
+	f = base_event_filter;
+	f.flags = PMU_EVENT_FILTER_INVALID_FLAGS;
+	r = set_pmu_event_filter(vcpu, &f);
+	TEST_ASSERT(r, "Set invalid flags is expected to fail");
+
+	f = base_event_filter;
+	f.nevents = PMU_EVENT_FILTER_INVALID_NEVENTS;
+	r = set_pmu_event_filter(vcpu, &f);
+	TEST_ASSERT(r, "Exceeding the max number of filter events should fail");
+
+	f = base_event_filter;
+	f.fixed_counter_bitmap = ~GENMASK_ULL(nr_fixed_counters, 0);
+	r = set_pmu_event_filter(vcpu, &f);
+	TEST_ASSERT(!r, "Masking non-existent fixed counters should be allowed");
+}
+
+static void intel_run_fixed_counter_guest_code(uint8_t idx)
+{
+	for (;;) {
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+		wrmsr(MSR_CORE_PERF_FIXED_CTR0 + idx, 0);
+
+		/* Only OS_EN bit is enabled for fixed counter[idx]. */
+		wrmsr(MSR_CORE_PERF_FIXED_CTR_CTRL, FIXED_PMC_CTRL(idx, FIXED_PMC_KERNEL));
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, FIXED_PMC_GLOBAL_CTRL_ENABLE(idx));
+		__asm__ __volatile__("loop ." : "+c"((int){NUM_BRANCHES}));
+		wrmsr(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+
+		GUEST_SYNC(rdmsr(MSR_CORE_PERF_FIXED_CTR0 + idx));
+	}
+}
+
+static uint64_t test_with_fixed_counter_filter(struct kvm_vcpu *vcpu,
+					       uint32_t action, uint32_t bitmap)
+{
+	struct __kvm_pmu_event_filter f = {
+		.action = action,
+		.fixed_counter_bitmap = bitmap,
+	};
+	set_pmu_event_filter(vcpu, &f);
+
+	return run_vcpu_to_sync(vcpu);
+}
+
+static uint64_t test_set_gp_and_fixed_event_filter(struct kvm_vcpu *vcpu,
+						   uint32_t action,
+						   uint32_t bitmap)
+{
+	struct __kvm_pmu_event_filter f = base_event_filter;
+
+	f.action = action;
+	f.fixed_counter_bitmap = bitmap;
+	set_pmu_event_filter(vcpu, &f);
+
+	return run_vcpu_to_sync(vcpu);
+}
+
+static void __test_fixed_counter_bitmap(struct kvm_vcpu *vcpu, uint8_t idx,
+					uint8_t nr_fixed_counters)
+{
+	unsigned int i;
+	uint32_t bitmap;
+	uint64_t count;
+
+	TEST_ASSERT(nr_fixed_counters < sizeof(bitmap) * 8,
+		    "Invalid nr_fixed_counters");
+
+	/*
+	 * Check the fixed performance counter can count normally when KVM
+	 * userspace doesn't set any pmu filter.
+	 */
+	count = run_vcpu_to_sync(vcpu);
+	TEST_ASSERT(count, "Unexpected count value: %ld", count);
+
+	for (i = 0; i < BIT(nr_fixed_counters); i++) {
+		bitmap = BIT(i);
+		count = test_with_fixed_counter_filter(vcpu, KVM_PMU_EVENT_ALLOW,
+						       bitmap);
+		TEST_ASSERT_EQ(!!count, !!(bitmap & BIT(idx)));
+
+		count = test_with_fixed_counter_filter(vcpu, KVM_PMU_EVENT_DENY,
+						       bitmap);
+		TEST_ASSERT_EQ(!!count, !(bitmap & BIT(idx)));
+
+		/*
+		 * Check that fixed_counter_bitmap has higher priority than
+		 * events[] when both are set.
+		 */
+		count = test_set_gp_and_fixed_event_filter(vcpu,
+							   KVM_PMU_EVENT_ALLOW,
+							   bitmap);
+		TEST_ASSERT_EQ(!!count, !!(bitmap & BIT(idx)));
+
+		count = test_set_gp_and_fixed_event_filter(vcpu,
+							   KVM_PMU_EVENT_DENY,
+							   bitmap);
+		TEST_ASSERT_EQ(!!count, !(bitmap & BIT(idx)));
+	}
+}
+
+static void test_fixed_counter_bitmap(void)
+{
+	uint8_t nr_fixed_counters = kvm_cpu_property(X86_PROPERTY_PMU_NR_FIXED_COUNTERS);
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	uint8_t idx;
+
+	/*
+	 * Check that pmu_event_filter works as expected when it's applied to
+	 * fixed performance counters.
+	 */
+	for (idx = 0; idx < nr_fixed_counters; idx++) {
+		vm = vm_create_with_one_vcpu(&vcpu,
+					     intel_run_fixed_counter_guest_code);
+		vcpu_args_set(vcpu, 1, idx);
+		__test_fixed_counter_bitmap(vcpu, idx, nr_fixed_counters);
+		kvm_vm_free(vm);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	void (*guest_code)(void);
+	struct kvm_vcpu *vcpu, *vcpu2 = NULL;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_is_pmu_enabled());
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_PMU_EVENT_FILTER));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_PMU_EVENT_MASKED_EVENTS));
+
+	TEST_REQUIRE(use_intel_pmu() || use_amd_pmu());
+	guest_code = use_intel_pmu() ? intel_guest_code : amd_guest_code;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	TEST_REQUIRE(sanity_check_pmu(vcpu));
+
+	if (use_amd_pmu())
+		test_amd_deny_list(vcpu);
+
+	test_without_filter(vcpu);
+	test_member_deny_list(vcpu);
+	test_member_allow_list(vcpu);
+	test_not_member_deny_list(vcpu);
+	test_not_member_allow_list(vcpu);
+
+	if (use_intel_pmu() &&
+	    supports_event_mem_inst_retired() &&
+	    kvm_cpu_property(X86_PROPERTY_PMU_NR_GP_COUNTERS) >= 3)
+		vcpu2 = vm_vcpu_add(vm, 2, intel_masked_events_guest_code);
+	else if (use_amd_pmu())
+		vcpu2 = vm_vcpu_add(vm, 2, amd_masked_events_guest_code);
+
+	if (vcpu2)
+		test_masked_events(vcpu2);
+	test_filter_ioctl(vcpu);
+
+	kvm_vm_free(vm);
+
+	test_pmu_config_disable(guest_code);
+	test_fixed_counter_bitmap();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c
new file mode 100644
index 000000000000..1969f4ab9b28
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/private_mem_conversions_test.c
@@ -0,0 +1,480 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2022, Google LLC.
+ */
+#include <fcntl.h>
+#include <limits.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/kvm_para.h>
+#include <linux/memfd.h>
+#include <linux/sizes.h>
+
+#include <test_util.h>
+#include <kvm_util.h>
+#include <processor.h>
+
+#define BASE_DATA_SLOT		10
+#define BASE_DATA_GPA		((uint64_t)(1ull << 32))
+#define PER_CPU_DATA_SIZE	((uint64_t)(SZ_2M + PAGE_SIZE))
+
+/* Horrific macro so that the line info is captured accurately :-( */
+#define memcmp_g(gpa, pattern,  size)								\
+do {												\
+	uint8_t *mem = (uint8_t *)gpa;								\
+	size_t i;										\
+												\
+	for (i = 0; i < size; i++)								\
+		__GUEST_ASSERT(mem[i] == pattern,						\
+			       "Guest expected 0x%x at offset %lu (gpa 0x%lx), got 0x%x",	\
+			       pattern, i, gpa + i, mem[i]);					\
+} while (0)
+
+static void memcmp_h(uint8_t *mem, uint64_t gpa, uint8_t pattern, size_t size)
+{
+	size_t i;
+
+	for (i = 0; i < size; i++)
+		TEST_ASSERT(mem[i] == pattern,
+			    "Host expected 0x%x at gpa 0x%lx, got 0x%x",
+			    pattern, gpa + i, mem[i]);
+}
+
+/*
+ * Run memory conversion tests with explicit conversion:
+ * Execute KVM hypercall to map/unmap gpa range which will cause userspace exit
+ * to back/unback private memory. Subsequent accesses by guest to the gpa range
+ * will not cause exit to userspace.
+ *
+ * Test memory conversion scenarios with following steps:
+ * 1) Access private memory using private access and verify that memory contents
+ *   are not visible to userspace.
+ * 2) Convert memory to shared using explicit conversions and ensure that
+ *   userspace is able to access the shared regions.
+ * 3) Convert memory back to private using explicit conversions and ensure that
+ *   userspace is again not able to access converted private regions.
+ */
+
+#define GUEST_STAGE(o, s) { .offset = o, .size = s }
+
+enum ucall_syncs {
+	SYNC_SHARED,
+	SYNC_PRIVATE,
+};
+
+static void guest_sync_shared(uint64_t gpa, uint64_t size,
+			      uint8_t current_pattern, uint8_t new_pattern)
+{
+	GUEST_SYNC5(SYNC_SHARED, gpa, size, current_pattern, new_pattern);
+}
+
+static void guest_sync_private(uint64_t gpa, uint64_t size, uint8_t pattern)
+{
+	GUEST_SYNC4(SYNC_PRIVATE, gpa, size, pattern);
+}
+
+/* Arbitrary values, KVM doesn't care about the attribute flags. */
+#define MAP_GPA_SET_ATTRIBUTES	BIT(0)
+#define MAP_GPA_SHARED		BIT(1)
+#define MAP_GPA_DO_FALLOCATE	BIT(2)
+
+static void guest_map_mem(uint64_t gpa, uint64_t size, bool map_shared,
+			  bool do_fallocate)
+{
+	uint64_t flags = MAP_GPA_SET_ATTRIBUTES;
+
+	if (map_shared)
+		flags |= MAP_GPA_SHARED;
+	if (do_fallocate)
+		flags |= MAP_GPA_DO_FALLOCATE;
+	kvm_hypercall_map_gpa_range(gpa, size, flags);
+}
+
+static void guest_map_shared(uint64_t gpa, uint64_t size, bool do_fallocate)
+{
+	guest_map_mem(gpa, size, true, do_fallocate);
+}
+
+static void guest_map_private(uint64_t gpa, uint64_t size, bool do_fallocate)
+{
+	guest_map_mem(gpa, size, false, do_fallocate);
+}
+
+struct {
+	uint64_t offset;
+	uint64_t size;
+} static const test_ranges[] = {
+	GUEST_STAGE(0, PAGE_SIZE),
+	GUEST_STAGE(0, SZ_2M),
+	GUEST_STAGE(PAGE_SIZE, PAGE_SIZE),
+	GUEST_STAGE(PAGE_SIZE, SZ_2M),
+	GUEST_STAGE(SZ_2M, PAGE_SIZE),
+};
+
+static void guest_test_explicit_conversion(uint64_t base_gpa, bool do_fallocate)
+{
+	const uint8_t def_p = 0xaa;
+	const uint8_t init_p = 0xcc;
+	uint64_t j;
+	int i;
+
+	/* Memory should be shared by default. */
+	memset((void *)base_gpa, def_p, PER_CPU_DATA_SIZE);
+	memcmp_g(base_gpa, def_p, PER_CPU_DATA_SIZE);
+	guest_sync_shared(base_gpa, PER_CPU_DATA_SIZE, def_p, init_p);
+
+	memcmp_g(base_gpa, init_p, PER_CPU_DATA_SIZE);
+
+	for (i = 0; i < ARRAY_SIZE(test_ranges); i++) {
+		uint64_t gpa = base_gpa + test_ranges[i].offset;
+		uint64_t size = test_ranges[i].size;
+		uint8_t p1 = 0x11;
+		uint8_t p2 = 0x22;
+		uint8_t p3 = 0x33;
+		uint8_t p4 = 0x44;
+
+		/*
+		 * Set the test region to pattern one to differentiate it from
+		 * the data range as a whole (contains the initial pattern).
+		 */
+		memset((void *)gpa, p1, size);
+
+		/*
+		 * Convert to private, set and verify the private data, and
+		 * then verify that the rest of the data (map shared) still
+		 * holds the initial pattern, and that the host always sees the
+		 * shared memory (initial pattern).  Unlike shared memory,
+		 * punching a hole in private memory is destructive, i.e.
+		 * previous values aren't guaranteed to be preserved.
+		 */
+		guest_map_private(gpa, size, do_fallocate);
+
+		if (size > PAGE_SIZE) {
+			memset((void *)gpa, p2, PAGE_SIZE);
+			goto skip;
+		}
+
+		memset((void *)gpa, p2, size);
+		guest_sync_private(gpa, size, p1);
+
+		/*
+		 * Verify that the private memory was set to pattern two, and
+		 * that shared memory still holds the initial pattern.
+		 */
+		memcmp_g(gpa, p2, size);
+		if (gpa > base_gpa)
+			memcmp_g(base_gpa, init_p, gpa - base_gpa);
+		if (gpa + size < base_gpa + PER_CPU_DATA_SIZE)
+			memcmp_g(gpa + size, init_p,
+				 (base_gpa + PER_CPU_DATA_SIZE) - (gpa + size));
+
+		/*
+		 * Convert odd-number page frames back to shared to verify KVM
+		 * also correctly handles holes in private ranges.
+		 */
+		for (j = 0; j < size; j += PAGE_SIZE) {
+			if ((j >> PAGE_SHIFT) & 1) {
+				guest_map_shared(gpa + j, PAGE_SIZE, do_fallocate);
+				guest_sync_shared(gpa + j, PAGE_SIZE, p1, p3);
+
+				memcmp_g(gpa + j, p3, PAGE_SIZE);
+			} else {
+				guest_sync_private(gpa + j, PAGE_SIZE, p1);
+			}
+		}
+
+skip:
+		/*
+		 * Convert the entire region back to shared, explicitly write
+		 * pattern three to fill in the even-number frames before
+		 * asking the host to verify (and write pattern four).
+		 */
+		guest_map_shared(gpa, size, do_fallocate);
+		memset((void *)gpa, p3, size);
+		guest_sync_shared(gpa, size, p3, p4);
+		memcmp_g(gpa, p4, size);
+
+		/* Reset the shared memory back to the initial pattern. */
+		memset((void *)gpa, init_p, size);
+
+		/*
+		 * Free (via PUNCH_HOLE) *all* private memory so that the next
+		 * iteration starts from a clean slate, e.g. with respect to
+		 * whether or not there are pages/folios in guest_mem.
+		 */
+		guest_map_shared(base_gpa, PER_CPU_DATA_SIZE, true);
+	}
+}
+
+static void guest_punch_hole(uint64_t gpa, uint64_t size)
+{
+	/* "Mapping" memory shared via fallocate() is done via PUNCH_HOLE. */
+	uint64_t flags = MAP_GPA_SHARED | MAP_GPA_DO_FALLOCATE;
+
+	kvm_hypercall_map_gpa_range(gpa, size, flags);
+}
+
+/*
+ * Test that PUNCH_HOLE actually frees memory by punching holes without doing a
+ * proper conversion.  Freeing (PUNCH_HOLE) should zap SPTEs, and reallocating
+ * (subsequent fault) should zero memory.
+ */
+static void guest_test_punch_hole(uint64_t base_gpa, bool precise)
+{
+	const uint8_t init_p = 0xcc;
+	int i;
+
+	/*
+	 * Convert the entire range to private, this testcase is all about
+	 * punching holes in guest_memfd, i.e. shared mappings aren't needed.
+	 */
+	guest_map_private(base_gpa, PER_CPU_DATA_SIZE, false);
+
+	for (i = 0; i < ARRAY_SIZE(test_ranges); i++) {
+		uint64_t gpa = base_gpa + test_ranges[i].offset;
+		uint64_t size = test_ranges[i].size;
+
+		/*
+		 * Free all memory before each iteration, even for the !precise
+		 * case where the memory will be faulted back in.  Freeing and
+		 * reallocating should obviously work, and freeing all memory
+		 * minimizes the probability of cross-testcase influence.
+		 */
+		guest_punch_hole(base_gpa, PER_CPU_DATA_SIZE);
+
+		/* Fault-in and initialize memory, and verify the pattern. */
+		if (precise) {
+			memset((void *)gpa, init_p, size);
+			memcmp_g(gpa, init_p, size);
+		} else {
+			memset((void *)base_gpa, init_p, PER_CPU_DATA_SIZE);
+			memcmp_g(base_gpa, init_p, PER_CPU_DATA_SIZE);
+		}
+
+		/*
+		 * Punch a hole at the target range and verify that reads from
+		 * the guest succeed and return zeroes.
+		 */
+		guest_punch_hole(gpa, size);
+		memcmp_g(gpa, 0, size);
+	}
+}
+
+static void guest_code(uint64_t base_gpa)
+{
+	/*
+	 * Run the conversion test twice, with and without doing fallocate() on
+	 * the guest_memfd backing when converting between shared and private.
+	 */
+	guest_test_explicit_conversion(base_gpa, false);
+	guest_test_explicit_conversion(base_gpa, true);
+
+	/*
+	 * Run the PUNCH_HOLE test twice too, once with the entire guest_memfd
+	 * faulted in, once with only the target range faulted in.
+	 */
+	guest_test_punch_hole(base_gpa, false);
+	guest_test_punch_hole(base_gpa, true);
+	GUEST_DONE();
+}
+
+static void handle_exit_hypercall(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+	uint64_t gpa = run->hypercall.args[0];
+	uint64_t size = run->hypercall.args[1] * PAGE_SIZE;
+	bool set_attributes = run->hypercall.args[2] & MAP_GPA_SET_ATTRIBUTES;
+	bool map_shared = run->hypercall.args[2] & MAP_GPA_SHARED;
+	bool do_fallocate = run->hypercall.args[2] & MAP_GPA_DO_FALLOCATE;
+	struct kvm_vm *vm = vcpu->vm;
+
+	TEST_ASSERT(run->hypercall.nr == KVM_HC_MAP_GPA_RANGE,
+		    "Wanted MAP_GPA_RANGE (%u), got '%llu'",
+		    KVM_HC_MAP_GPA_RANGE, run->hypercall.nr);
+
+	if (do_fallocate)
+		vm_guest_mem_fallocate(vm, gpa, size, map_shared);
+
+	if (set_attributes)
+		vm_set_memory_attributes(vm, gpa, size,
+					 map_shared ? 0 : KVM_MEMORY_ATTRIBUTE_PRIVATE);
+	run->hypercall.ret = 0;
+}
+
+static bool run_vcpus;
+
+static void *__test_mem_conversions(void *__vcpu)
+{
+	struct kvm_vcpu *vcpu = __vcpu;
+	struct kvm_run *run = vcpu->run;
+	struct kvm_vm *vm = vcpu->vm;
+	struct ucall uc;
+
+	while (!READ_ONCE(run_vcpus))
+		;
+
+	for ( ;; ) {
+		vcpu_run(vcpu);
+
+		if (run->exit_reason == KVM_EXIT_HYPERCALL) {
+			handle_exit_hypercall(vcpu);
+			continue;
+		}
+
+		TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
+			    "Wanted KVM_EXIT_IO, got exit reason: %u (%s)",
+			    run->exit_reason, exit_reason_str(run->exit_reason));
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		case UCALL_SYNC: {
+			uint64_t gpa  = uc.args[1];
+			size_t size = uc.args[2];
+			size_t i;
+
+			TEST_ASSERT(uc.args[0] == SYNC_SHARED ||
+				    uc.args[0] == SYNC_PRIVATE,
+				    "Unknown sync command '%ld'", uc.args[0]);
+
+			for (i = 0; i < size; i += vm->page_size) {
+				size_t nr_bytes = min_t(size_t, vm->page_size, size - i);
+				uint8_t *hva = addr_gpa2hva(vm, gpa + i);
+
+				/* In all cases, the host should observe the shared data. */
+				memcmp_h(hva, gpa + i, uc.args[3], nr_bytes);
+
+				/* For shared, write the new pattern to guest memory. */
+				if (uc.args[0] == SYNC_SHARED)
+					memset(hva, uc.args[4], nr_bytes);
+			}
+			break;
+		}
+		case UCALL_DONE:
+			return NULL;
+		default:
+			TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+		}
+	}
+}
+
+static void test_mem_conversions(enum vm_mem_backing_src_type src_type, uint32_t nr_vcpus,
+				 uint32_t nr_memslots)
+{
+	/*
+	 * Allocate enough memory so that each vCPU's chunk of memory can be
+	 * naturally aligned with respect to the size of the backing store.
+	 */
+	const size_t alignment = max_t(size_t, SZ_2M, get_backing_src_pagesz(src_type));
+	const size_t per_cpu_size = align_up(PER_CPU_DATA_SIZE, alignment);
+	const size_t memfd_size = per_cpu_size * nr_vcpus;
+	const size_t slot_size = memfd_size / nr_memslots;
+	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+	pthread_t threads[KVM_MAX_VCPUS];
+	struct kvm_vm *vm;
+	int memfd, i;
+
+	const struct vm_shape shape = {
+		.mode = VM_MODE_DEFAULT,
+		.type = KVM_X86_SW_PROTECTED_VM,
+	};
+
+	TEST_ASSERT(slot_size * nr_memslots == memfd_size,
+		    "The memfd size (0x%lx) needs to be cleanly divisible by the number of memslots (%u)",
+		    memfd_size, nr_memslots);
+	vm = __vm_create_with_vcpus(shape, nr_vcpus, 0, guest_code, vcpus);
+
+	vm_enable_cap(vm, KVM_CAP_EXIT_HYPERCALL, (1 << KVM_HC_MAP_GPA_RANGE));
+
+	memfd = vm_create_guest_memfd(vm, memfd_size, 0);
+
+	for (i = 0; i < nr_memslots; i++)
+		vm_mem_add(vm, src_type, BASE_DATA_GPA + slot_size * i,
+			   BASE_DATA_SLOT + i, slot_size / vm->page_size,
+			   KVM_MEM_GUEST_MEMFD, memfd, slot_size * i);
+
+	for (i = 0; i < nr_vcpus; i++) {
+		uint64_t gpa =  BASE_DATA_GPA + i * per_cpu_size;
+
+		vcpu_args_set(vcpus[i], 1, gpa);
+
+		/*
+		 * Map only what is needed so that an out-of-bounds access
+		 * results #PF => SHUTDOWN instead of data corruption.
+		 */
+		virt_map(vm, gpa, gpa, PER_CPU_DATA_SIZE / vm->page_size);
+
+		pthread_create(&threads[i], NULL, __test_mem_conversions, vcpus[i]);
+	}
+
+	WRITE_ONCE(run_vcpus, true);
+
+	for (i = 0; i < nr_vcpus; i++)
+		pthread_join(threads[i], NULL);
+
+	kvm_vm_free(vm);
+
+	/*
+	 * Allocate and free memory from the guest_memfd after closing the VM
+	 * fd.  The guest_memfd is gifted a reference to its owning VM, i.e.
+	 * should prevent the VM from being fully destroyed until the last
+	 * reference to the guest_memfd is also put.
+	 */
+	kvm_fallocate(memfd, FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE, 0, memfd_size);
+	kvm_fallocate(memfd, FALLOC_FL_KEEP_SIZE, 0, memfd_size);
+
+	close(memfd);
+}
+
+static void usage(const char *cmd)
+{
+	puts("");
+	printf("usage: %s [-h] [-m nr_memslots] [-s mem_type] [-n nr_vcpus]\n", cmd);
+	puts("");
+	backing_src_help("-s");
+	puts("");
+	puts(" -n: specify the number of vcpus (default: 1)");
+	puts("");
+	puts(" -m: specify the number of memslots (default: 1)");
+	puts("");
+}
+
+int main(int argc, char *argv[])
+{
+	enum vm_mem_backing_src_type src_type = DEFAULT_VM_MEM_SRC;
+	uint32_t nr_memslots = 1;
+	uint32_t nr_vcpus = 1;
+	int opt;
+
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM));
+
+	while ((opt = getopt(argc, argv, "hm:s:n:")) != -1) {
+		switch (opt) {
+		case 's':
+			src_type = parse_backing_src_type(optarg);
+			break;
+		case 'n':
+			nr_vcpus = atoi_positive("nr_vcpus", optarg);
+			break;
+		case 'm':
+			nr_memslots = atoi_positive("nr_memslots", optarg);
+			break;
+		case 'h':
+		default:
+			usage(argv[0]);
+			exit(0);
+		}
+	}
+
+	test_mem_conversions(src_type, nr_vcpus, nr_memslots);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/private_mem_kvm_exits_test.c b/tools/testing/selftests/kvm/x86/private_mem_kvm_exits_test.c
new file mode 100644
index 000000000000..13e72fcec8dd
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/private_mem_kvm_exits_test.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2023, Google LLC.
+ */
+#include <linux/kvm.h>
+#include <pthread.h>
+#include <stdint.h>
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+
+/* Arbitrarily selected to avoid overlaps with anything else */
+#define EXITS_TEST_GVA 0xc0000000
+#define EXITS_TEST_GPA EXITS_TEST_GVA
+#define EXITS_TEST_NPAGES 1
+#define EXITS_TEST_SIZE (EXITS_TEST_NPAGES * PAGE_SIZE)
+#define EXITS_TEST_SLOT 10
+
+static uint64_t guest_repeatedly_read(void)
+{
+	volatile uint64_t value;
+
+	while (true)
+		value = *((uint64_t *) EXITS_TEST_GVA);
+
+	return value;
+}
+
+static uint32_t run_vcpu_get_exit_reason(struct kvm_vcpu *vcpu)
+{
+	int r;
+
+	r = _vcpu_run(vcpu);
+	if (r) {
+		TEST_ASSERT(errno == EFAULT, KVM_IOCTL_ERROR(KVM_RUN, r));
+		TEST_ASSERT_EQ(vcpu->run->exit_reason, KVM_EXIT_MEMORY_FAULT);
+	}
+	return vcpu->run->exit_reason;
+}
+
+const struct vm_shape protected_vm_shape = {
+	.mode = VM_MODE_DEFAULT,
+	.type = KVM_X86_SW_PROTECTED_VM,
+};
+
+static void test_private_access_memslot_deleted(void)
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	pthread_t vm_thread;
+	void *thread_return;
+	uint32_t exit_reason;
+
+	vm = vm_create_shape_with_one_vcpu(protected_vm_shape, &vcpu,
+					   guest_repeatedly_read);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    EXITS_TEST_GPA, EXITS_TEST_SLOT,
+				    EXITS_TEST_NPAGES,
+				    KVM_MEM_GUEST_MEMFD);
+
+	virt_map(vm, EXITS_TEST_GVA, EXITS_TEST_GPA, EXITS_TEST_NPAGES);
+
+	/* Request to access page privately */
+	vm_mem_set_private(vm, EXITS_TEST_GPA, EXITS_TEST_SIZE);
+
+	pthread_create(&vm_thread, NULL,
+		       (void *(*)(void *))run_vcpu_get_exit_reason,
+		       (void *)vcpu);
+
+	vm_mem_region_delete(vm, EXITS_TEST_SLOT);
+
+	pthread_join(vm_thread, &thread_return);
+	exit_reason = (uint32_t)(uint64_t)thread_return;
+
+	TEST_ASSERT_EQ(exit_reason, KVM_EXIT_MEMORY_FAULT);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.flags, KVM_MEMORY_EXIT_FLAG_PRIVATE);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.gpa, EXITS_TEST_GPA);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.size, EXITS_TEST_SIZE);
+
+	kvm_vm_free(vm);
+}
+
+static void test_private_access_memslot_not_private(void)
+{
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	uint32_t exit_reason;
+
+	vm = vm_create_shape_with_one_vcpu(protected_vm_shape, &vcpu,
+					   guest_repeatedly_read);
+
+	/* Add a non-private memslot (flags = 0) */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    EXITS_TEST_GPA, EXITS_TEST_SLOT,
+				    EXITS_TEST_NPAGES, 0);
+
+	virt_map(vm, EXITS_TEST_GVA, EXITS_TEST_GPA, EXITS_TEST_NPAGES);
+
+	/* Request to access page privately */
+	vm_mem_set_private(vm, EXITS_TEST_GPA, EXITS_TEST_SIZE);
+
+	exit_reason = run_vcpu_get_exit_reason(vcpu);
+
+	TEST_ASSERT_EQ(exit_reason, KVM_EXIT_MEMORY_FAULT);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.flags, KVM_MEMORY_EXIT_FLAG_PRIVATE);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.gpa, EXITS_TEST_GPA);
+	TEST_ASSERT_EQ(vcpu->run->memory_fault.size, EXITS_TEST_SIZE);
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM));
+
+	test_private_access_memslot_deleted();
+	test_private_access_memslot_not_private();
+}
diff --git a/tools/testing/selftests/kvm/x86/recalc_apic_map_test.c b/tools/testing/selftests/kvm/x86/recalc_apic_map_test.c
new file mode 100644
index 000000000000..cbc92a862ea9
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/recalc_apic_map_test.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test edge cases and race conditions in kvm_recalculate_apic_map().
+ */
+
+#include <sys/ioctl.h>
+#include <pthread.h>
+#include <time.h>
+
+#include "processor.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "apic.h"
+
+#define TIMEOUT		5	/* seconds */
+
+#define LAPIC_DISABLED	0
+#define LAPIC_X2APIC	(MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE)
+#define MAX_XAPIC_ID	0xff
+
+static void *race(void *arg)
+{
+	struct kvm_lapic_state lapic = {};
+	struct kvm_vcpu *vcpu = arg;
+
+	while (1) {
+		/* Trigger kvm_recalculate_apic_map(). */
+		vcpu_ioctl(vcpu, KVM_SET_LAPIC, &lapic);
+		pthread_testcancel();
+	}
+
+	return NULL;
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
+	struct kvm_vcpu *vcpuN;
+	struct kvm_vm *vm;
+	pthread_t thread;
+	time_t t;
+	int i;
+
+	kvm_static_assert(KVM_MAX_VCPUS > MAX_XAPIC_ID);
+
+	/*
+	 * Create the max number of vCPUs supported by selftests so that KVM
+	 * has decent amount of work to do when recalculating the map, i.e. to
+	 * make the problematic window large enough to hit.
+	 */
+	vm = vm_create_with_vcpus(KVM_MAX_VCPUS, NULL, vcpus);
+
+	/*
+	 * Enable x2APIC on all vCPUs so that KVM doesn't bail from the recalc
+	 * due to vCPUs having aliased xAPIC IDs (truncated to 8 bits).
+	 */
+	for (i = 0; i < KVM_MAX_VCPUS; i++)
+		vcpu_set_msr(vcpus[i], MSR_IA32_APICBASE, LAPIC_X2APIC);
+
+	TEST_ASSERT_EQ(pthread_create(&thread, NULL, race, vcpus[0]), 0);
+
+	vcpuN = vcpus[KVM_MAX_VCPUS - 1];
+	for (t = time(NULL) + TIMEOUT; time(NULL) < t;) {
+		vcpu_set_msr(vcpuN, MSR_IA32_APICBASE, LAPIC_X2APIC);
+		vcpu_set_msr(vcpuN, MSR_IA32_APICBASE, LAPIC_DISABLED);
+	}
+
+	TEST_ASSERT_EQ(pthread_cancel(thread), 0);
+	TEST_ASSERT_EQ(pthread_join(thread, NULL), 0);
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/set_boot_cpu_id.c b/tools/testing/selftests/kvm/x86/set_boot_cpu_id.c
new file mode 100644
index 000000000000..49913784bc82
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/set_boot_cpu_id.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that KVM_SET_BOOT_CPU_ID works as intended
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "apic.h"
+
+static void guest_bsp_vcpu(void *arg)
+{
+	GUEST_SYNC(1);
+
+	GUEST_ASSERT_NE(get_bsp_flag(), 0);
+
+	GUEST_DONE();
+}
+
+static void guest_not_bsp_vcpu(void *arg)
+{
+	GUEST_SYNC(1);
+
+	GUEST_ASSERT_EQ(get_bsp_flag(), 0);
+
+	GUEST_DONE();
+}
+
+static void test_set_invalid_bsp(struct kvm_vm *vm)
+{
+	unsigned long max_vcpu_id = vm_check_cap(vm, KVM_CAP_MAX_VCPU_ID);
+	int r;
+
+	if (max_vcpu_id) {
+		r = __vm_ioctl(vm, KVM_SET_BOOT_CPU_ID, (void *)(max_vcpu_id + 1));
+		TEST_ASSERT(r == -1 && errno == EINVAL, "BSP with ID > MAX should fail");
+	}
+
+	r = __vm_ioctl(vm, KVM_SET_BOOT_CPU_ID, (void *)(1L << 32));
+	TEST_ASSERT(r == -1 && errno == EINVAL, "BSP with ID[63:32]!=0 should fail");
+}
+
+static void test_set_bsp_busy(struct kvm_vcpu *vcpu, const char *msg)
+{
+	int r = __vm_ioctl(vcpu->vm, KVM_SET_BOOT_CPU_ID,
+			   (void *)(unsigned long)vcpu->id);
+
+	TEST_ASSERT(r == -1 && errno == EBUSY, "KVM_SET_BOOT_CPU_ID set %s", msg);
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+	int stage;
+
+	for (stage = 0; stage < 2; stage++) {
+
+		vcpu_run(vcpu);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+					uc.args[1] == stage + 1,
+					"Stage %d: Unexpected register values vmexit, got %lx",
+					stage + 1, (ulong)uc.args[1]);
+			test_set_bsp_busy(vcpu, "while running vm");
+			break;
+		case UCALL_DONE:
+			TEST_ASSERT(stage == 1,
+					"Expected GUEST_DONE in stage 2, got stage %d",
+					stage);
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		default:
+			TEST_ASSERT(false, "Unexpected exit: %s",
+				    exit_reason_str(vcpu->run->exit_reason));
+		}
+	}
+}
+
+static struct kvm_vm *create_vm(uint32_t nr_vcpus, uint32_t bsp_vcpu_id,
+				struct kvm_vcpu *vcpus[])
+{
+	struct kvm_vm *vm;
+	uint32_t i;
+
+	vm = vm_create(nr_vcpus);
+
+	test_set_invalid_bsp(vm);
+
+	vm_ioctl(vm, KVM_SET_BOOT_CPU_ID, (void *)(unsigned long)bsp_vcpu_id);
+
+	for (i = 0; i < nr_vcpus; i++)
+		vcpus[i] = vm_vcpu_add(vm, i, i == bsp_vcpu_id ? guest_bsp_vcpu :
+								 guest_not_bsp_vcpu);
+	return vm;
+}
+
+static void run_vm_bsp(uint32_t bsp_vcpu_id)
+{
+	struct kvm_vcpu *vcpus[2];
+	struct kvm_vm *vm;
+
+	vm = create_vm(ARRAY_SIZE(vcpus), bsp_vcpu_id, vcpus);
+
+	run_vcpu(vcpus[0]);
+	run_vcpu(vcpus[1]);
+
+	kvm_vm_free(vm);
+}
+
+static void check_set_bsp_busy(void)
+{
+	struct kvm_vcpu *vcpus[2];
+	struct kvm_vm *vm;
+
+	vm = create_vm(ARRAY_SIZE(vcpus), 0, vcpus);
+
+	test_set_bsp_busy(vcpus[1], "after adding vcpu");
+
+	run_vcpu(vcpus[0]);
+	run_vcpu(vcpus[1]);
+
+	test_set_bsp_busy(vcpus[1], "to a terminated vcpu");
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SET_BOOT_CPU_ID));
+
+	run_vm_bsp(0);
+	run_vm_bsp(1);
+	run_vm_bsp(0);
+
+	check_set_bsp_busy();
+}
diff --git a/tools/testing/selftests/kvm/x86/set_sregs_test.c b/tools/testing/selftests/kvm/x86/set_sregs_test.c
new file mode 100644
index 000000000000..f4095a3d1278
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/set_sregs_test.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * KVM_SET_SREGS tests
+ *
+ * Copyright (C) 2018, Google LLC.
+ *
+ * This is a regression test for the bug fixed by the following commit:
+ * d3802286fa0f ("kvm: x86: Disallow illegal IA32_APIC_BASE MSR values")
+ *
+ * That bug allowed a user-mode program that called the KVM_SET_SREGS
+ * ioctl to put a VCPU's local APIC into an invalid state.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+
+#define TEST_INVALID_CR_BIT(vcpu, cr, orig, bit)				\
+do {										\
+	struct kvm_sregs new;							\
+	int rc;									\
+										\
+	/* Skip the sub-test, the feature/bit is supported. */			\
+	if (orig.cr & bit)							\
+		break;								\
+										\
+	memcpy(&new, &orig, sizeof(sregs));					\
+	new.cr |= bit;								\
+										\
+	rc = _vcpu_sregs_set(vcpu, &new);					\
+	TEST_ASSERT(rc, "KVM allowed invalid " #cr " bit (0x%lx)", bit);	\
+										\
+	/* Sanity check that KVM didn't change anything. */			\
+	vcpu_sregs_get(vcpu, &new);						\
+	TEST_ASSERT(!memcmp(&new, &orig, sizeof(new)), "KVM modified sregs");	\
+} while (0)
+
+#define KVM_ALWAYS_ALLOWED_CR4 (X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD |	\
+				X86_CR4_DE | X86_CR4_PSE | X86_CR4_PAE |	\
+				X86_CR4_MCE | X86_CR4_PGE | X86_CR4_PCE |	\
+				X86_CR4_OSFXSR | X86_CR4_OSXMMEXCPT)
+
+static uint64_t calc_supported_cr4_feature_bits(void)
+{
+	uint64_t cr4 = KVM_ALWAYS_ALLOWED_CR4;
+
+	if (kvm_cpu_has(X86_FEATURE_UMIP))
+		cr4 |= X86_CR4_UMIP;
+	if (kvm_cpu_has(X86_FEATURE_LA57))
+		cr4 |= X86_CR4_LA57;
+	if (kvm_cpu_has(X86_FEATURE_VMX))
+		cr4 |= X86_CR4_VMXE;
+	if (kvm_cpu_has(X86_FEATURE_SMX))
+		cr4 |= X86_CR4_SMXE;
+	if (kvm_cpu_has(X86_FEATURE_FSGSBASE))
+		cr4 |= X86_CR4_FSGSBASE;
+	if (kvm_cpu_has(X86_FEATURE_PCID))
+		cr4 |= X86_CR4_PCIDE;
+	if (kvm_cpu_has(X86_FEATURE_XSAVE))
+		cr4 |= X86_CR4_OSXSAVE;
+	if (kvm_cpu_has(X86_FEATURE_SMEP))
+		cr4 |= X86_CR4_SMEP;
+	if (kvm_cpu_has(X86_FEATURE_SMAP))
+		cr4 |= X86_CR4_SMAP;
+	if (kvm_cpu_has(X86_FEATURE_PKU))
+		cr4 |= X86_CR4_PKE;
+
+	return cr4;
+}
+
+static void test_cr_bits(struct kvm_vcpu *vcpu, uint64_t cr4)
+{
+	struct kvm_sregs sregs;
+	int rc, i;
+
+	vcpu_sregs_get(vcpu, &sregs);
+	sregs.cr0 &= ~(X86_CR0_CD | X86_CR0_NW);
+	sregs.cr4 |= cr4;
+	rc = _vcpu_sregs_set(vcpu, &sregs);
+	TEST_ASSERT(!rc, "Failed to set supported CR4 bits (0x%lx)", cr4);
+
+	TEST_ASSERT(!!(sregs.cr4 & X86_CR4_OSXSAVE) ==
+		    (vcpu->cpuid && vcpu_cpuid_has(vcpu, X86_FEATURE_OSXSAVE)),
+		    "KVM didn't %s OSXSAVE in CPUID as expected",
+		    (sregs.cr4 & X86_CR4_OSXSAVE) ? "set" : "clear");
+
+	TEST_ASSERT(!!(sregs.cr4 & X86_CR4_PKE) ==
+		    (vcpu->cpuid && vcpu_cpuid_has(vcpu, X86_FEATURE_OSPKE)),
+		    "KVM didn't %s OSPKE in CPUID as expected",
+		    (sregs.cr4 & X86_CR4_PKE) ? "set" : "clear");
+
+	vcpu_sregs_get(vcpu, &sregs);
+	TEST_ASSERT(sregs.cr4 == cr4, "sregs.CR4 (0x%llx) != CR4 (0x%lx)",
+		    sregs.cr4, cr4);
+
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_UMIP);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_LA57);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_VMXE);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_SMXE);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_FSGSBASE);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_PCIDE);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_OSXSAVE);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_SMEP);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_SMAP);
+	TEST_INVALID_CR_BIT(vcpu, cr4, sregs, X86_CR4_PKE);
+
+	for (i = 32; i < 64; i++)
+		TEST_INVALID_CR_BIT(vcpu, cr0, sregs, BIT(i));
+
+	/* NW without CD is illegal, as is PG without PE. */
+	TEST_INVALID_CR_BIT(vcpu, cr0, sregs, X86_CR0_NW);
+	TEST_INVALID_CR_BIT(vcpu, cr0, sregs, X86_CR0_PG);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_sregs sregs;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int rc;
+
+	/*
+	 * Create a dummy VM, specifically to avoid doing KVM_SET_CPUID2, and
+	 * use it to verify KVM enforces guest CPUID even if *userspace* never
+	 * sets CPUID.
+	 */
+	vm = vm_create_barebones();
+	vcpu = __vm_vcpu_add(vm, 0);
+	test_cr_bits(vcpu, KVM_ALWAYS_ALLOWED_CR4);
+	kvm_vm_free(vm);
+
+	/* Create a "real" VM with a fully populated guest CPUID and verify
+	 * APIC_BASE and all supported CR4 can be set.
+	 */
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	sregs.apic_base = 1 << 10;
+	rc = _vcpu_sregs_set(vcpu, &sregs);
+	TEST_ASSERT(rc, "Set IA32_APIC_BASE to %llx (invalid)",
+		    sregs.apic_base);
+	sregs.apic_base = 1 << 11;
+	rc = _vcpu_sregs_set(vcpu, &sregs);
+	TEST_ASSERT(!rc, "Couldn't set IA32_APIC_BASE to %llx (valid)",
+		    sregs.apic_base);
+
+	test_cr_bits(vcpu, calc_supported_cr4_feature_bits());
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/sev_init2_tests.c b/tools/testing/selftests/kvm/x86/sev_init2_tests.c
new file mode 100644
index 000000000000..b238615196ad
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/sev_init2_tests.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/kvm.h>
+#include <linux/psp-sev.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "kselftest.h"
+
+#define SVM_SEV_FEAT_DEBUG_SWAP 32u
+
+/*
+ * Some features may have hidden dependencies, or may only work
+ * for certain VM types.  Err on the side of safety and don't
+ * expect that all supported features can be passed one by one
+ * to KVM_SEV_INIT2.
+ *
+ * (Well, right now there's only one...)
+ */
+#define KNOWN_FEATURES SVM_SEV_FEAT_DEBUG_SWAP
+
+int kvm_fd;
+u64 supported_vmsa_features;
+bool have_sev_es;
+bool have_snp;
+
+static int __sev_ioctl(int vm_fd, int cmd_id, void *data)
+{
+	struct kvm_sev_cmd cmd = {
+		.id = cmd_id,
+		.data = (uint64_t)data,
+		.sev_fd = open_sev_dev_path_or_exit(),
+	};
+	int ret;
+
+	ret = ioctl(vm_fd, KVM_MEMORY_ENCRYPT_OP, &cmd);
+	TEST_ASSERT(ret < 0 || cmd.error == SEV_RET_SUCCESS,
+		    "%d failed: fw error: %d\n",
+		    cmd_id, cmd.error);
+
+	return ret;
+}
+
+static void test_init2(unsigned long vm_type, struct kvm_sev_init *init)
+{
+	struct kvm_vm *vm;
+	int ret;
+
+	vm = vm_create_barebones_type(vm_type);
+	ret = __sev_ioctl(vm->fd, KVM_SEV_INIT2, init);
+	TEST_ASSERT(ret == 0,
+		    "KVM_SEV_INIT2 return code is %d (expected 0), errno: %d",
+		    ret, errno);
+	kvm_vm_free(vm);
+}
+
+static void test_init2_invalid(unsigned long vm_type, struct kvm_sev_init *init, const char *msg)
+{
+	struct kvm_vm *vm;
+	int ret;
+
+	vm = vm_create_barebones_type(vm_type);
+	ret = __sev_ioctl(vm->fd, KVM_SEV_INIT2, init);
+	TEST_ASSERT(ret == -1 && errno == EINVAL,
+		    "KVM_SEV_INIT2 should fail, %s.",
+		    msg);
+	kvm_vm_free(vm);
+}
+
+void test_vm_types(void)
+{
+	test_init2(KVM_X86_SEV_VM, &(struct kvm_sev_init){});
+
+	/*
+	 * TODO: check that unsupported types cannot be created.  Probably
+	 * a separate selftest.
+	 */
+	if (have_sev_es)
+		test_init2(KVM_X86_SEV_ES_VM, &(struct kvm_sev_init){});
+
+	if (have_snp)
+		test_init2(KVM_X86_SNP_VM, &(struct kvm_sev_init){});
+
+	test_init2_invalid(0, &(struct kvm_sev_init){},
+			   "VM type is KVM_X86_DEFAULT_VM");
+	if (kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SW_PROTECTED_VM))
+		test_init2_invalid(KVM_X86_SW_PROTECTED_VM, &(struct kvm_sev_init){},
+				   "VM type is KVM_X86_SW_PROTECTED_VM");
+}
+
+void test_flags(uint32_t vm_type)
+{
+	int i;
+
+	for (i = 0; i < 32; i++)
+		test_init2_invalid(vm_type,
+			&(struct kvm_sev_init){ .flags = BIT(i) },
+			"invalid flag");
+}
+
+void test_features(uint32_t vm_type, uint64_t supported_features)
+{
+	int i;
+
+	for (i = 0; i < 64; i++) {
+		if (!(supported_features & BIT_ULL(i)))
+			test_init2_invalid(vm_type,
+				&(struct kvm_sev_init){ .vmsa_features = BIT_ULL(i) },
+				"unknown feature");
+		else if (KNOWN_FEATURES & BIT_ULL(i))
+			test_init2(vm_type,
+				&(struct kvm_sev_init){ .vmsa_features = BIT_ULL(i) });
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int kvm_fd = open_kvm_dev_path_or_exit();
+	bool have_sev;
+
+	TEST_REQUIRE(__kvm_has_device_attr(kvm_fd, KVM_X86_GRP_SEV,
+					   KVM_X86_SEV_VMSA_FEATURES) == 0);
+	kvm_device_attr_get(kvm_fd, KVM_X86_GRP_SEV,
+			    KVM_X86_SEV_VMSA_FEATURES,
+			    &supported_vmsa_features);
+
+	have_sev = kvm_cpu_has(X86_FEATURE_SEV);
+	TEST_ASSERT(have_sev == !!(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SEV_VM)),
+		    "sev: KVM_CAP_VM_TYPES (%x) does not match cpuid (checking %x)",
+		    kvm_check_cap(KVM_CAP_VM_TYPES), 1 << KVM_X86_SEV_VM);
+
+	TEST_REQUIRE(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SEV_VM));
+	have_sev_es = kvm_cpu_has(X86_FEATURE_SEV_ES);
+
+	TEST_ASSERT(have_sev_es == !!(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SEV_ES_VM)),
+		    "sev-es: KVM_CAP_VM_TYPES (%x) does not match cpuid (checking %x)",
+		    kvm_check_cap(KVM_CAP_VM_TYPES), 1 << KVM_X86_SEV_ES_VM);
+
+	have_snp = kvm_cpu_has(X86_FEATURE_SEV_SNP);
+	TEST_ASSERT(have_snp == !!(kvm_check_cap(KVM_CAP_VM_TYPES) & BIT(KVM_X86_SNP_VM)),
+		    "sev-snp: KVM_CAP_VM_TYPES (%x) indicates SNP support (bit %d), but CPUID does not",
+		    kvm_check_cap(KVM_CAP_VM_TYPES), KVM_X86_SNP_VM);
+
+	test_vm_types();
+
+	test_flags(KVM_X86_SEV_VM);
+	if (have_sev_es)
+		test_flags(KVM_X86_SEV_ES_VM);
+	if (have_snp)
+		test_flags(KVM_X86_SNP_VM);
+
+	test_features(KVM_X86_SEV_VM, 0);
+	if (have_sev_es)
+		test_features(KVM_X86_SEV_ES_VM, supported_vmsa_features);
+	if (have_snp)
+		test_features(KVM_X86_SNP_VM, supported_vmsa_features);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/sev_migrate_tests.c b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
new file mode 100644
index 000000000000..0a6dfba3905b
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/sev_migrate_tests.c
@@ -0,0 +1,397 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/kvm.h>
+#include <linux/psp-sev.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "sev.h"
+#include "kselftest.h"
+
+#define NR_MIGRATE_TEST_VCPUS 4
+#define NR_MIGRATE_TEST_VMS 3
+#define NR_LOCK_TESTING_THREADS 3
+#define NR_LOCK_TESTING_ITERATIONS 10000
+
+bool have_sev_es;
+
+static struct kvm_vm *sev_vm_create(bool es)
+{
+	struct kvm_vm *vm;
+	int i;
+
+	vm = vm_create_barebones();
+	if (!es)
+		sev_vm_init(vm);
+	else
+		sev_es_vm_init(vm);
+
+	for (i = 0; i < NR_MIGRATE_TEST_VCPUS; ++i)
+		__vm_vcpu_add(vm, i);
+
+	sev_vm_launch(vm, es ? SEV_POLICY_ES : 0);
+
+	if (es)
+		vm_sev_ioctl(vm, KVM_SEV_LAUNCH_UPDATE_VMSA, NULL);
+	return vm;
+}
+
+static struct kvm_vm *aux_vm_create(bool with_vcpus)
+{
+	struct kvm_vm *vm;
+	int i;
+
+	vm = vm_create_barebones();
+	if (!with_vcpus)
+		return vm;
+
+	for (i = 0; i < NR_MIGRATE_TEST_VCPUS; ++i)
+		__vm_vcpu_add(vm, i);
+
+	return vm;
+}
+
+static int __sev_migrate_from(struct kvm_vm *dst, struct kvm_vm *src)
+{
+	return __vm_enable_cap(dst, KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM, src->fd);
+}
+
+
+static void sev_migrate_from(struct kvm_vm *dst, struct kvm_vm *src)
+{
+	int ret;
+
+	ret = __sev_migrate_from(dst, src);
+	TEST_ASSERT(!ret, "Migration failed, ret: %d, errno: %d", ret, errno);
+}
+
+static void test_sev_migrate_from(bool es)
+{
+	struct kvm_vm *src_vm;
+	struct kvm_vm *dst_vms[NR_MIGRATE_TEST_VMS];
+	int i, ret;
+
+	src_vm = sev_vm_create(es);
+	for (i = 0; i < NR_MIGRATE_TEST_VMS; ++i)
+		dst_vms[i] = aux_vm_create(true);
+
+	/* Initial migration from the src to the first dst. */
+	sev_migrate_from(dst_vms[0], src_vm);
+
+	for (i = 1; i < NR_MIGRATE_TEST_VMS; i++)
+		sev_migrate_from(dst_vms[i], dst_vms[i - 1]);
+
+	/* Migrate the guest back to the original VM. */
+	ret = __sev_migrate_from(src_vm, dst_vms[NR_MIGRATE_TEST_VMS - 1]);
+	TEST_ASSERT(ret == -1 && errno == EIO,
+		    "VM that was migrated from should be dead. ret %d, errno: %d", ret,
+		    errno);
+
+	kvm_vm_free(src_vm);
+	for (i = 0; i < NR_MIGRATE_TEST_VMS; ++i)
+		kvm_vm_free(dst_vms[i]);
+}
+
+struct locking_thread_input {
+	struct kvm_vm *vm;
+	struct kvm_vm *source_vms[NR_LOCK_TESTING_THREADS];
+};
+
+static void *locking_test_thread(void *arg)
+{
+	int i, j;
+	struct locking_thread_input *input = (struct locking_thread_input *)arg;
+
+	for (i = 0; i < NR_LOCK_TESTING_ITERATIONS; ++i) {
+		j = i % NR_LOCK_TESTING_THREADS;
+		__sev_migrate_from(input->vm, input->source_vms[j]);
+	}
+
+	return NULL;
+}
+
+static void test_sev_migrate_locking(void)
+{
+	struct locking_thread_input input[NR_LOCK_TESTING_THREADS];
+	pthread_t pt[NR_LOCK_TESTING_THREADS];
+	int i;
+
+	for (i = 0; i < NR_LOCK_TESTING_THREADS; ++i) {
+		input[i].vm = sev_vm_create(/* es= */ false);
+		input[0].source_vms[i] = input[i].vm;
+	}
+	for (i = 1; i < NR_LOCK_TESTING_THREADS; ++i)
+		memcpy(input[i].source_vms, input[0].source_vms,
+		       sizeof(input[i].source_vms));
+
+	for (i = 0; i < NR_LOCK_TESTING_THREADS; ++i)
+		pthread_create(&pt[i], NULL, locking_test_thread, &input[i]);
+
+	for (i = 0; i < NR_LOCK_TESTING_THREADS; ++i)
+		pthread_join(pt[i], NULL);
+	for (i = 0; i < NR_LOCK_TESTING_THREADS; ++i)
+		kvm_vm_free(input[i].vm);
+}
+
+static void test_sev_migrate_parameters(void)
+{
+	struct kvm_vm *sev_vm, *sev_es_vm, *vm_no_vcpu, *vm_no_sev,
+		*sev_es_vm_no_vmsa;
+	int ret;
+
+	vm_no_vcpu = vm_create_barebones();
+	vm_no_sev = aux_vm_create(true);
+	ret = __sev_migrate_from(vm_no_vcpu, vm_no_sev);
+	TEST_ASSERT(ret == -1 && errno == EINVAL,
+		    "Migrations require SEV enabled. ret %d, errno: %d", ret,
+		    errno);
+
+	if (!have_sev_es)
+		goto out;
+
+	sev_vm = sev_vm_create(/* es= */ false);
+	sev_es_vm = sev_vm_create(/* es= */ true);
+	sev_es_vm_no_vmsa = vm_create_barebones();
+	sev_es_vm_init(sev_es_vm_no_vmsa);
+	__vm_vcpu_add(sev_es_vm_no_vmsa, 1);
+
+	ret = __sev_migrate_from(sev_vm, sev_es_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"Should not be able migrate to SEV enabled VM. ret: %d, errno: %d",
+		ret, errno);
+
+	ret = __sev_migrate_from(sev_es_vm, sev_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"Should not be able migrate to SEV-ES enabled VM. ret: %d, errno: %d",
+		ret, errno);
+
+	ret = __sev_migrate_from(vm_no_vcpu, sev_es_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"SEV-ES migrations require same number of vCPUS. ret: %d, errno: %d",
+		ret, errno);
+
+	ret = __sev_migrate_from(vm_no_vcpu, sev_es_vm_no_vmsa);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"SEV-ES migrations require UPDATE_VMSA. ret %d, errno: %d",
+		ret, errno);
+
+	kvm_vm_free(sev_vm);
+	kvm_vm_free(sev_es_vm);
+	kvm_vm_free(sev_es_vm_no_vmsa);
+out:
+	kvm_vm_free(vm_no_vcpu);
+	kvm_vm_free(vm_no_sev);
+}
+
+static int __sev_mirror_create(struct kvm_vm *dst, struct kvm_vm *src)
+{
+	return __vm_enable_cap(dst, KVM_CAP_VM_COPY_ENC_CONTEXT_FROM, src->fd);
+}
+
+
+static void sev_mirror_create(struct kvm_vm *dst, struct kvm_vm *src)
+{
+	int ret;
+
+	ret = __sev_mirror_create(dst, src);
+	TEST_ASSERT(!ret, "Copying context failed, ret: %d, errno: %d", ret, errno);
+}
+
+static void verify_mirror_allowed_cmds(struct kvm_vm *vm)
+{
+	struct kvm_sev_guest_status status;
+	int cmd_id;
+
+	for (cmd_id = KVM_SEV_INIT; cmd_id < KVM_SEV_NR_MAX; ++cmd_id) {
+		int ret;
+
+		/*
+		 * These commands are allowed for mirror VMs, all others are
+		 * not.
+		 */
+		switch (cmd_id) {
+		case KVM_SEV_LAUNCH_UPDATE_VMSA:
+		case KVM_SEV_GUEST_STATUS:
+		case KVM_SEV_DBG_DECRYPT:
+		case KVM_SEV_DBG_ENCRYPT:
+			continue;
+		default:
+			break;
+		}
+
+		/*
+		 * These commands should be disallowed before the data
+		 * parameter is examined so NULL is OK here.
+		 */
+		ret = __vm_sev_ioctl(vm, cmd_id, NULL);
+		TEST_ASSERT(
+			ret == -1 && errno == EINVAL,
+			"Should not be able call command: %d. ret: %d, errno: %d",
+			cmd_id, ret, errno);
+	}
+
+	vm_sev_ioctl(vm, KVM_SEV_GUEST_STATUS, &status);
+}
+
+static void test_sev_mirror(bool es)
+{
+	struct kvm_vm *src_vm, *dst_vm;
+	int i;
+
+	src_vm = sev_vm_create(es);
+	dst_vm = aux_vm_create(false);
+
+	sev_mirror_create(dst_vm, src_vm);
+
+	/* Check that we can complete creation of the mirror VM.  */
+	for (i = 0; i < NR_MIGRATE_TEST_VCPUS; ++i)
+		__vm_vcpu_add(dst_vm, i);
+
+	if (es)
+		vm_sev_ioctl(dst_vm, KVM_SEV_LAUNCH_UPDATE_VMSA, NULL);
+
+	verify_mirror_allowed_cmds(dst_vm);
+
+	kvm_vm_free(src_vm);
+	kvm_vm_free(dst_vm);
+}
+
+static void test_sev_mirror_parameters(void)
+{
+	struct kvm_vm *sev_vm, *sev_es_vm, *vm_no_vcpu, *vm_with_vcpu;
+	int ret;
+
+	sev_vm = sev_vm_create(/* es= */ false);
+	vm_with_vcpu = aux_vm_create(true);
+	vm_no_vcpu = aux_vm_create(false);
+
+	ret = __sev_mirror_create(sev_vm, sev_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"Should not be able copy context to self. ret: %d, errno: %d",
+		ret, errno);
+
+	ret = __sev_mirror_create(vm_no_vcpu, vm_with_vcpu);
+	TEST_ASSERT(ret == -1 && errno == EINVAL,
+		    "Copy context requires SEV enabled. ret %d, errno: %d", ret,
+		    errno);
+
+	ret = __sev_mirror_create(vm_with_vcpu, sev_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"SEV copy context requires no vCPUS on the destination. ret: %d, errno: %d",
+		ret, errno);
+
+	if (!have_sev_es)
+		goto out;
+
+	sev_es_vm = sev_vm_create(/* es= */ true);
+	ret = __sev_mirror_create(sev_vm, sev_es_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"Should not be able copy context to SEV enabled VM. ret: %d, errno: %d",
+		ret, errno);
+
+	ret = __sev_mirror_create(sev_es_vm, sev_vm);
+	TEST_ASSERT(
+		ret == -1 && errno == EINVAL,
+		"Should not be able copy context to SEV-ES enabled VM. ret: %d, errno: %d",
+		ret, errno);
+
+	kvm_vm_free(sev_es_vm);
+
+out:
+	kvm_vm_free(sev_vm);
+	kvm_vm_free(vm_with_vcpu);
+	kvm_vm_free(vm_no_vcpu);
+}
+
+static void test_sev_move_copy(void)
+{
+	struct kvm_vm *dst_vm, *dst2_vm, *dst3_vm, *sev_vm, *mirror_vm,
+		      *dst_mirror_vm, *dst2_mirror_vm, *dst3_mirror_vm;
+
+	sev_vm = sev_vm_create(/* es= */ false);
+	dst_vm = aux_vm_create(true);
+	dst2_vm = aux_vm_create(true);
+	dst3_vm = aux_vm_create(true);
+	mirror_vm = aux_vm_create(false);
+	dst_mirror_vm = aux_vm_create(false);
+	dst2_mirror_vm = aux_vm_create(false);
+	dst3_mirror_vm = aux_vm_create(false);
+
+	sev_mirror_create(mirror_vm, sev_vm);
+
+	sev_migrate_from(dst_mirror_vm, mirror_vm);
+	sev_migrate_from(dst_vm, sev_vm);
+
+	sev_migrate_from(dst2_vm, dst_vm);
+	sev_migrate_from(dst2_mirror_vm, dst_mirror_vm);
+
+	sev_migrate_from(dst3_mirror_vm, dst2_mirror_vm);
+	sev_migrate_from(dst3_vm, dst2_vm);
+
+	kvm_vm_free(dst_vm);
+	kvm_vm_free(sev_vm);
+	kvm_vm_free(dst2_vm);
+	kvm_vm_free(dst3_vm);
+	kvm_vm_free(mirror_vm);
+	kvm_vm_free(dst_mirror_vm);
+	kvm_vm_free(dst2_mirror_vm);
+	kvm_vm_free(dst3_mirror_vm);
+
+	/*
+	 * Run similar test be destroy mirrors before mirrored VMs to ensure
+	 * destruction is done safely.
+	 */
+	sev_vm = sev_vm_create(/* es= */ false);
+	dst_vm = aux_vm_create(true);
+	mirror_vm = aux_vm_create(false);
+	dst_mirror_vm = aux_vm_create(false);
+
+	sev_mirror_create(mirror_vm, sev_vm);
+
+	sev_migrate_from(dst_mirror_vm, mirror_vm);
+	sev_migrate_from(dst_vm, sev_vm);
+
+	kvm_vm_free(mirror_vm);
+	kvm_vm_free(dst_mirror_vm);
+	kvm_vm_free(dst_vm);
+	kvm_vm_free(sev_vm);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_COPY_ENC_CONTEXT_FROM));
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SEV));
+
+	have_sev_es = kvm_cpu_has(X86_FEATURE_SEV_ES);
+
+	if (kvm_has_cap(KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM)) {
+		test_sev_migrate_from(/* es= */ false);
+		if (have_sev_es)
+			test_sev_migrate_from(/* es= */ true);
+		test_sev_migrate_locking();
+		test_sev_migrate_parameters();
+		if (kvm_has_cap(KVM_CAP_VM_COPY_ENC_CONTEXT_FROM))
+			test_sev_move_copy();
+	}
+	if (kvm_has_cap(KVM_CAP_VM_COPY_ENC_CONTEXT_FROM)) {
+		test_sev_mirror(/* es= */ false);
+		if (have_sev_es)
+			test_sev_mirror(/* es= */ true);
+		test_sev_mirror_parameters();
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/sev_smoke_test.c b/tools/testing/selftests/kvm/x86/sev_smoke_test.c
new file mode 100644
index 000000000000..86ad1c7d068f
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/sev_smoke_test.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <math.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "linux/psp-sev.h"
+#include "sev.h"
+
+
+#define XFEATURE_MASK_X87_AVX (XFEATURE_MASK_FP | XFEATURE_MASK_SSE | XFEATURE_MASK_YMM)
+
+static void guest_snp_code(void)
+{
+	uint64_t sev_msr = rdmsr(MSR_AMD64_SEV);
+
+	GUEST_ASSERT(sev_msr & MSR_AMD64_SEV_ENABLED);
+	GUEST_ASSERT(sev_msr & MSR_AMD64_SEV_ES_ENABLED);
+	GUEST_ASSERT(sev_msr & MSR_AMD64_SEV_SNP_ENABLED);
+
+	wrmsr(MSR_AMD64_SEV_ES_GHCB, GHCB_MSR_TERM_REQ);
+	vmgexit();
+}
+
+static void guest_sev_es_code(void)
+{
+	/* TODO: Check CPUID after GHCB-based hypercall support is added. */
+	GUEST_ASSERT(rdmsr(MSR_AMD64_SEV) & MSR_AMD64_SEV_ENABLED);
+	GUEST_ASSERT(rdmsr(MSR_AMD64_SEV) & MSR_AMD64_SEV_ES_ENABLED);
+
+	/*
+	 * TODO: Add GHCB and ucall support for SEV-ES guests.  For now, simply
+	 * force "termination" to signal "done" via the GHCB MSR protocol.
+	 */
+	wrmsr(MSR_AMD64_SEV_ES_GHCB, GHCB_MSR_TERM_REQ);
+	vmgexit();
+}
+
+static void guest_sev_code(void)
+{
+	GUEST_ASSERT(this_cpu_has(X86_FEATURE_SEV));
+	GUEST_ASSERT(rdmsr(MSR_AMD64_SEV) & MSR_AMD64_SEV_ENABLED);
+
+	GUEST_DONE();
+}
+
+/* Stash state passed via VMSA before any compiled code runs.  */
+extern void guest_code_xsave(void);
+asm("guest_code_xsave:\n"
+    "mov $" __stringify(XFEATURE_MASK_X87_AVX) ", %eax\n"
+    "xor %edx, %edx\n"
+    "xsave (%rdi)\n"
+    "jmp guest_sev_es_code");
+
+static void compare_xsave(u8 *from_host, u8 *from_guest)
+{
+	int i;
+	bool bad = false;
+	for (i = 0; i < 4095; i++) {
+		if (from_host[i] != from_guest[i]) {
+			printf("mismatch at %u | %02hhx %02hhx\n",
+			       i, from_host[i], from_guest[i]);
+			bad = true;
+		}
+	}
+
+	if (bad)
+		abort();
+}
+
+static void test_sync_vmsa(uint32_t type, uint64_t policy)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	vm_vaddr_t gva;
+	void *hva;
+
+	double x87val = M_PI;
+	struct kvm_xsave __attribute__((aligned(64))) xsave = { 0 };
+
+	vm = vm_sev_create_with_one_vcpu(type, guest_code_xsave, &vcpu);
+	gva = vm_vaddr_alloc_shared(vm, PAGE_SIZE, KVM_UTIL_MIN_VADDR,
+				    MEM_REGION_TEST_DATA);
+	hva = addr_gva2hva(vm, gva);
+
+	vcpu_args_set(vcpu, 1, gva);
+
+	asm("fninit\n"
+	    "vpcmpeqb %%ymm4, %%ymm4, %%ymm4\n"
+	    "fldl %3\n"
+	    "xsave (%2)\n"
+	    "fstp %%st\n"
+	    : "=m"(xsave)
+	    : "A"(XFEATURE_MASK_X87_AVX), "r"(&xsave), "m" (x87val)
+	    : "ymm4", "st", "st(1)", "st(2)", "st(3)", "st(4)", "st(5)", "st(6)", "st(7)");
+	vcpu_xsave_set(vcpu, &xsave);
+
+	vm_sev_launch(vm, policy, NULL);
+
+	/* This page is shared, so make it decrypted.  */
+	memset(hva, 0, PAGE_SIZE);
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT(vcpu->run->exit_reason == KVM_EXIT_SYSTEM_EVENT,
+		    "Wanted SYSTEM_EVENT, got %s",
+		    exit_reason_str(vcpu->run->exit_reason));
+	TEST_ASSERT_EQ(vcpu->run->system_event.type, KVM_SYSTEM_EVENT_SEV_TERM);
+	TEST_ASSERT_EQ(vcpu->run->system_event.ndata, 1);
+	TEST_ASSERT_EQ(vcpu->run->system_event.data[0], GHCB_MSR_TERM_REQ);
+
+	compare_xsave((u8 *)&xsave, (u8 *)hva);
+
+	kvm_vm_free(vm);
+}
+
+static void test_sev(void *guest_code, uint32_t type, uint64_t policy)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = vm_sev_create_with_one_vcpu(type, guest_code, &vcpu);
+
+	/* TODO: Validate the measurement is as expected. */
+	vm_sev_launch(vm, policy, NULL);
+
+	for (;;) {
+		vcpu_run(vcpu);
+
+		if (is_sev_es_vm(vm)) {
+			TEST_ASSERT(vcpu->run->exit_reason == KVM_EXIT_SYSTEM_EVENT,
+				    "Wanted SYSTEM_EVENT, got %s",
+				    exit_reason_str(vcpu->run->exit_reason));
+			TEST_ASSERT_EQ(vcpu->run->system_event.type, KVM_SYSTEM_EVENT_SEV_TERM);
+			TEST_ASSERT_EQ(vcpu->run->system_event.ndata, 1);
+			TEST_ASSERT_EQ(vcpu->run->system_event.data[0], GHCB_MSR_TERM_REQ);
+			break;
+		}
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_SYNC:
+			continue;
+		case UCALL_DONE:
+			return;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		default:
+			TEST_FAIL("Unexpected exit: %s",
+				  exit_reason_str(vcpu->run->exit_reason));
+		}
+	}
+
+	kvm_vm_free(vm);
+}
+
+static void guest_shutdown_code(void)
+{
+	struct desc_ptr idt;
+
+	/* Clobber the IDT so that #UD is guaranteed to trigger SHUTDOWN. */
+	memset(&idt, 0, sizeof(idt));
+	set_idt(&idt);
+
+	__asm__ __volatile__("ud2");
+}
+
+static void test_sev_shutdown(uint32_t type, uint64_t policy)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	vm = vm_sev_create_with_one_vcpu(type, guest_shutdown_code, &vcpu);
+
+	vm_sev_launch(vm, policy, NULL);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT(vcpu->run->exit_reason == KVM_EXIT_SHUTDOWN,
+		    "Wanted SHUTDOWN, got %s",
+		    exit_reason_str(vcpu->run->exit_reason));
+
+	kvm_vm_free(vm);
+}
+
+static void test_sev_smoke(void *guest, uint32_t type, uint64_t policy)
+{
+	const u64 xf_mask = XFEATURE_MASK_X87_AVX;
+
+	if (type == KVM_X86_SNP_VM)
+		test_sev(guest, type, policy | SNP_POLICY_DBG);
+	else
+		test_sev(guest, type, policy | SEV_POLICY_NO_DBG);
+	test_sev(guest, type, policy);
+
+	if (type == KVM_X86_SEV_VM)
+		return;
+
+	test_sev_shutdown(type, policy);
+
+	if (kvm_has_cap(KVM_CAP_XCRS) &&
+	    (xgetbv(0) & kvm_cpu_supported_xcr0() & xf_mask) == xf_mask) {
+		test_sync_vmsa(type, policy);
+		if (type == KVM_X86_SNP_VM)
+			test_sync_vmsa(type, policy | SNP_POLICY_DBG);
+		else
+			test_sync_vmsa(type, policy | SEV_POLICY_NO_DBG);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SEV));
+
+	test_sev_smoke(guest_sev_code, KVM_X86_SEV_VM, 0);
+
+	if (kvm_cpu_has(X86_FEATURE_SEV_ES))
+		test_sev_smoke(guest_sev_es_code, KVM_X86_SEV_ES_VM, SEV_POLICY_ES);
+
+	if (kvm_cpu_has(X86_FEATURE_SEV_SNP))
+		test_sev_smoke(guest_snp_code, KVM_X86_SNP_VM, snp_default_policy());
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/smaller_maxphyaddr_emulation_test.c b/tools/testing/selftests/kvm/x86/smaller_maxphyaddr_emulation_test.c
new file mode 100644
index 000000000000..fabeeaddfb3a
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/smaller_maxphyaddr_emulation_test.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Google LLC.
+ *
+ * Test that KVM emulates instructions in response to EPT violations when
+ * allow_smaller_maxphyaddr is enabled and guest.MAXPHYADDR < host.MAXPHYADDR.
+ */
+#include "flds_emulation.h"
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "vmx.h"
+
+#define MAXPHYADDR 36
+
+#define MEM_REGION_GVA	0x0000123456789000
+#define MEM_REGION_GPA	0x0000000700000000
+#define MEM_REGION_SLOT	10
+#define MEM_REGION_SIZE PAGE_SIZE
+
+static void guest_code(bool tdp_enabled)
+{
+	uint64_t error_code;
+	uint64_t vector;
+
+	vector = kvm_asm_safe_ec(FLDS_MEM_EAX, error_code, "a"(MEM_REGION_GVA));
+
+	/*
+	 * When TDP is enabled, flds will trigger an emulation failure, exit to
+	 * userspace, and then the selftest host "VMM" skips the instruction.
+	 *
+	 * When TDP is disabled, no instruction emulation is required so flds
+	 * should generate #PF(RSVD).
+	 */
+	if (tdp_enabled) {
+		GUEST_ASSERT(!vector);
+	} else {
+		GUEST_ASSERT_EQ(vector, PF_VECTOR);
+		GUEST_ASSERT(error_code & PFERR_RSVD_MASK);
+	}
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	uint64_t *pte;
+	uint64_t *hva;
+	uint64_t gpa;
+	int rc;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_SMALLER_MAXPHYADDR));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vcpu_args_set(vcpu, 1, kvm_is_tdp_enabled());
+
+	vcpu_set_cpuid_property(vcpu, X86_PROPERTY_MAX_PHY_ADDR, MAXPHYADDR);
+
+	rc = kvm_check_cap(KVM_CAP_EXIT_ON_EMULATION_FAILURE);
+	TEST_ASSERT(rc, "KVM_CAP_EXIT_ON_EMULATION_FAILURE is unavailable");
+	vm_enable_cap(vm, KVM_CAP_EXIT_ON_EMULATION_FAILURE, 1);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    MEM_REGION_GPA, MEM_REGION_SLOT,
+				    MEM_REGION_SIZE / PAGE_SIZE, 0);
+	gpa = vm_phy_pages_alloc(vm, MEM_REGION_SIZE / PAGE_SIZE,
+				 MEM_REGION_GPA, MEM_REGION_SLOT);
+	TEST_ASSERT(gpa == MEM_REGION_GPA, "Failed vm_phy_pages_alloc");
+	virt_map(vm, MEM_REGION_GVA, MEM_REGION_GPA, 1);
+	hva = addr_gpa2hva(vm, MEM_REGION_GPA);
+	memset(hva, 0, PAGE_SIZE);
+
+	pte = vm_get_page_table_entry(vm, MEM_REGION_GVA);
+	*pte |= BIT_ULL(MAXPHYADDR);
+
+	vcpu_run(vcpu);
+
+	/*
+	 * When TDP is enabled, KVM must emulate in response the guest physical
+	 * address that is illegal from the guest's perspective, but is legal
+	 * from hardware's perspeective.  This should result in an emulation
+	 * failure exit to userspace since KVM doesn't support emulating flds.
+	 */
+	if (kvm_is_tdp_enabled()) {
+		handle_flds_emulation_failure_exit(vcpu);
+		vcpu_run(vcpu);
+	}
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unrecognized ucall: %lu", uc.cmd);
+	}
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/smm_test.c b/tools/testing/selftests/kvm/x86/smm_test.c
new file mode 100644
index 000000000000..55c88d664a94
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/smm_test.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2018, Red Hat, Inc.
+ *
+ * Tests for SMM.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+
+#include "vmx.h"
+#include "svm_util.h"
+
+#define SMRAM_SIZE 65536
+#define SMRAM_MEMSLOT ((1 << 16) | 1)
+#define SMRAM_PAGES (SMRAM_SIZE / PAGE_SIZE)
+#define SMRAM_GPA 0x1000000
+#define SMRAM_STAGE 0xfe
+
+#define STR(x) #x
+#define XSTR(s) STR(s)
+
+#define SYNC_PORT 0xe
+#define DONE 0xff
+
+/*
+ * This is compiled as normal 64-bit code, however, SMI handler is executed
+ * in real-address mode. To stay simple we're limiting ourselves to a mode
+ * independent subset of asm here.
+ * SMI handler always report back fixed stage SMRAM_STAGE.
+ */
+uint8_t smi_handler[] = {
+	0xb0, SMRAM_STAGE,    /* mov $SMRAM_STAGE, %al */
+	0xe4, SYNC_PORT,      /* in $SYNC_PORT, %al */
+	0x0f, 0xaa,           /* rsm */
+};
+
+static inline void sync_with_host(uint64_t phase)
+{
+	asm volatile("in $" XSTR(SYNC_PORT)", %%al \n"
+		     : "+a" (phase));
+}
+
+static void self_smi(void)
+{
+	x2apic_write_reg(APIC_ICR,
+			 APIC_DEST_SELF | APIC_INT_ASSERT | APIC_DM_SMI);
+}
+
+static void l2_guest_code(void)
+{
+	sync_with_host(8);
+
+	sync_with_host(10);
+
+	vmcall();
+}
+
+static void guest_code(void *arg)
+{
+	#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	uint64_t apicbase = rdmsr(MSR_IA32_APICBASE);
+	struct svm_test_data *svm = arg;
+	struct vmx_pages *vmx_pages = arg;
+
+	sync_with_host(1);
+
+	wrmsr(MSR_IA32_APICBASE, apicbase | X2APIC_ENABLE);
+
+	sync_with_host(2);
+
+	self_smi();
+
+	sync_with_host(4);
+
+	if (arg) {
+		if (this_cpu_has(X86_FEATURE_SVM)) {
+			generic_svm_setup(svm, l2_guest_code,
+					  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+		} else {
+			GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+			GUEST_ASSERT(load_vmcs(vmx_pages));
+			prepare_vmcs(vmx_pages, l2_guest_code,
+				     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+		}
+
+		sync_with_host(5);
+
+		self_smi();
+
+		sync_with_host(7);
+
+		if (this_cpu_has(X86_FEATURE_SVM)) {
+			run_guest(svm->vmcb, svm->vmcb_gpa);
+			run_guest(svm->vmcb, svm->vmcb_gpa);
+		} else {
+			vmlaunch();
+			vmresume();
+		}
+
+		/* Stages 8-11 are eaten by SMM (SMRAM_STAGE reported instead) */
+		sync_with_host(12);
+	}
+
+	sync_with_host(DONE);
+}
+
+void inject_smi(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu_events events;
+
+	vcpu_events_get(vcpu, &events);
+
+	events.smi.pending = 1;
+	events.flags |= KVM_VCPUEVENT_VALID_SMM;
+
+	vcpu_events_set(vcpu, &events);
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t nested_gva = 0;
+
+	struct kvm_vcpu *vcpu;
+	struct kvm_regs regs;
+	struct kvm_vm *vm;
+	struct kvm_x86_state *state;
+	int stage, stage_reported;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_X86_SMM));
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS, SMRAM_GPA,
+				    SMRAM_MEMSLOT, SMRAM_PAGES, 0);
+	TEST_ASSERT(vm_phy_pages_alloc(vm, SMRAM_PAGES, SMRAM_GPA, SMRAM_MEMSLOT)
+		    == SMRAM_GPA, "could not allocate guest physical addresses?");
+
+	memset(addr_gpa2hva(vm, SMRAM_GPA), 0x0, SMRAM_SIZE);
+	memcpy(addr_gpa2hva(vm, SMRAM_GPA) + 0x8000, smi_handler,
+	       sizeof(smi_handler));
+
+	vcpu_set_msr(vcpu, MSR_IA32_SMBASE, SMRAM_GPA);
+
+	if (kvm_has_cap(KVM_CAP_NESTED_STATE)) {
+		if (kvm_cpu_has(X86_FEATURE_SVM))
+			vcpu_alloc_svm(vm, &nested_gva);
+		else if (kvm_cpu_has(X86_FEATURE_VMX))
+			vcpu_alloc_vmx(vm, &nested_gva);
+	}
+
+	if (!nested_gva)
+		pr_info("will skip SMM test with VMX enabled\n");
+
+	vcpu_args_set(vcpu, 1, nested_gva);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		memset(&regs, 0, sizeof(regs));
+		vcpu_regs_get(vcpu, &regs);
+
+		stage_reported = regs.rax & 0xff;
+
+		if (stage_reported == DONE)
+			goto done;
+
+		TEST_ASSERT(stage_reported == stage ||
+			    stage_reported == SMRAM_STAGE,
+			    "Unexpected stage: #%x, got %x",
+			    stage, stage_reported);
+
+		/*
+		 * Enter SMM during L2 execution and check that we correctly
+		 * return from it. Do not perform save/restore while in SMM yet.
+		 */
+		if (stage == 8) {
+			inject_smi(vcpu);
+			continue;
+		}
+
+		/*
+		 * Perform save/restore while the guest is in SMM triggered
+		 * during L2 execution.
+		 */
+		if (stage == 10)
+			inject_smi(vcpu);
+
+		state = vcpu_save_state(vcpu);
+		kvm_vm_release(vm);
+
+		vcpu = vm_recreate_with_one_vcpu(vm);
+		vcpu_load_state(vcpu, state);
+		kvm_x86_state_cleanup(state);
+	}
+
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/state_test.c b/tools/testing/selftests/kvm/x86/state_test.c
new file mode 100644
index 000000000000..f2c7a1c297e3
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/state_test.c
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * KVM_GET/SET_* tests
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ *
+ * Tests for vCPU state save/restore, including nested guest state.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+#define L2_GUEST_STACK_SIZE 256
+
+void svm_l2_guest_code(void)
+{
+	GUEST_SYNC(4);
+	/* Exit to L1 */
+	vmcall();
+	GUEST_SYNC(6);
+	/* Done, exit to L1 and never come back.  */
+	vmcall();
+}
+
+static void svm_l1_guest_code(struct svm_test_data *svm)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	GUEST_ASSERT(svm->vmcb_gpa);
+	/* Prepare for L2 execution. */
+	generic_svm_setup(svm, svm_l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_SYNC(3);
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_SYNC(5);
+	vmcb->save.rip += 3;
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_SYNC(7);
+}
+
+void vmx_l2_guest_code(void)
+{
+	GUEST_SYNC(6);
+
+	/* Exit to L1 */
+	vmcall();
+
+	/* L1 has now set up a shadow VMCS for us.  */
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0ffee);
+	GUEST_SYNC(10);
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0ffee);
+	GUEST_ASSERT(!vmwrite(GUEST_RIP, 0xc0fffee));
+	GUEST_SYNC(11);
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0fffee);
+	GUEST_ASSERT(!vmwrite(GUEST_RIP, 0xc0ffffee));
+	GUEST_SYNC(12);
+
+	/* Done, exit to L1 and never come back.  */
+	vmcall();
+}
+
+static void vmx_l1_guest_code(struct vmx_pages *vmx_pages)
+{
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT(vmx_pages->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_SYNC(3);
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+	GUEST_ASSERT(vmptrstz() == vmx_pages->vmcs_gpa);
+
+	GUEST_SYNC(4);
+	GUEST_ASSERT(vmptrstz() == vmx_pages->vmcs_gpa);
+
+	prepare_vmcs(vmx_pages, vmx_l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_SYNC(5);
+	GUEST_ASSERT(vmptrstz() == vmx_pages->vmcs_gpa);
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmptrstz() == vmx_pages->vmcs_gpa);
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	/* Check that the launched state is preserved.  */
+	GUEST_ASSERT(vmlaunch());
+
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	GUEST_SYNC(7);
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	vmwrite(GUEST_RIP, vmreadz(GUEST_RIP) + 3);
+
+	vmwrite(SECONDARY_VM_EXEC_CONTROL, SECONDARY_EXEC_SHADOW_VMCS);
+	vmwrite(VMCS_LINK_POINTER, vmx_pages->shadow_vmcs_gpa);
+
+	GUEST_ASSERT(!vmptrld(vmx_pages->shadow_vmcs_gpa));
+	GUEST_ASSERT(vmlaunch());
+	GUEST_SYNC(8);
+	GUEST_ASSERT(vmlaunch());
+	GUEST_ASSERT(vmresume());
+
+	vmwrite(GUEST_RIP, 0xc0ffee);
+	GUEST_SYNC(9);
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0ffee);
+
+	GUEST_ASSERT(!vmptrld(vmx_pages->vmcs_gpa));
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	GUEST_ASSERT(!vmptrld(vmx_pages->shadow_vmcs_gpa));
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0ffffee);
+	GUEST_ASSERT(vmlaunch());
+	GUEST_ASSERT(vmresume());
+	GUEST_SYNC(13);
+	GUEST_ASSERT(vmreadz(GUEST_RIP) == 0xc0ffffee);
+	GUEST_ASSERT(vmlaunch());
+	GUEST_ASSERT(vmresume());
+}
+
+static void __attribute__((__flatten__)) guest_code(void *arg)
+{
+	GUEST_SYNC(1);
+
+	if (this_cpu_has(X86_FEATURE_XSAVE)) {
+		uint64_t supported_xcr0 = this_cpu_supported_xcr0();
+		uint8_t buffer[PAGE_SIZE];
+
+		memset(buffer, 0xcc, sizeof(buffer));
+
+		/*
+		 * Modify state for all supported xfeatures to take them out of
+		 * their "init" state, i.e. to make them show up in XSTATE_BV.
+		 *
+		 * Note off-by-default features, e.g. AMX, are out of scope for
+		 * this particular testcase as they have a different ABI.
+		 */
+		GUEST_ASSERT(supported_xcr0 & XFEATURE_MASK_FP);
+		asm volatile ("fincstp");
+
+		GUEST_ASSERT(supported_xcr0 & XFEATURE_MASK_SSE);
+		asm volatile ("vmovdqu %0, %%xmm0" :: "m" (buffer));
+
+		if (supported_xcr0 & XFEATURE_MASK_YMM)
+			asm volatile ("vmovdqu %0, %%ymm0" :: "m" (buffer));
+
+		if (supported_xcr0 & XFEATURE_MASK_AVX512) {
+			asm volatile ("kmovq %0, %%k1" :: "r" (-1ull));
+			asm volatile ("vmovupd %0, %%zmm0" :: "m" (buffer));
+			asm volatile ("vmovupd %0, %%zmm16" :: "m" (buffer));
+		}
+
+		if (this_cpu_has(X86_FEATURE_MPX)) {
+			uint64_t bounds[2] = { 10, 0xffffffffull };
+			uint64_t output[2] = { };
+
+			GUEST_ASSERT(supported_xcr0 & XFEATURE_MASK_BNDREGS);
+			GUEST_ASSERT(supported_xcr0 & XFEATURE_MASK_BNDCSR);
+
+			/*
+			 * Don't bother trying to get BNDCSR into the INUSE
+			 * state.  MSR_IA32_BNDCFGS doesn't count as it isn't
+			 * managed via XSAVE/XRSTOR, and BNDCFGU can only be
+			 * modified by XRSTOR.  Stuffing XSTATE_BV in the host
+			 * is simpler than doing XRSTOR here in the guest.
+			 *
+			 * However, temporarily enable MPX in BNDCFGS so that
+			 * BNDMOV actually loads BND1.  If MPX isn't *fully*
+			 * enabled, all MPX instructions are treated as NOPs.
+			 *
+			 * Hand encode "bndmov (%rax),%bnd1" as support for MPX
+			 * mnemonics/registers has been removed from gcc and
+			 * clang (and was never fully supported by clang).
+			 */
+			wrmsr(MSR_IA32_BNDCFGS, BIT_ULL(0));
+			asm volatile (".byte 0x66,0x0f,0x1a,0x08" :: "a" (bounds));
+			/*
+			 * Hand encode "bndmov %bnd1, (%rax)" to sanity check
+			 * that BND1 actually got loaded.
+			 */
+			asm volatile (".byte 0x66,0x0f,0x1b,0x08" :: "a" (output));
+			wrmsr(MSR_IA32_BNDCFGS, 0);
+
+			GUEST_ASSERT_EQ(bounds[0], output[0]);
+			GUEST_ASSERT_EQ(bounds[1], output[1]);
+		}
+		if (this_cpu_has(X86_FEATURE_PKU)) {
+			GUEST_ASSERT(supported_xcr0 & XFEATURE_MASK_PKRU);
+			set_cr4(get_cr4() | X86_CR4_PKE);
+			GUEST_ASSERT(this_cpu_has(X86_FEATURE_OSPKE));
+
+			wrpkru(-1u);
+		}
+	}
+
+	GUEST_SYNC(2);
+
+	if (arg) {
+		if (this_cpu_has(X86_FEATURE_SVM))
+			svm_l1_guest_code(arg);
+		else
+			vmx_l1_guest_code(arg);
+	}
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	uint64_t *xstate_bv, saved_xstate_bv;
+	vm_vaddr_t nested_gva = 0;
+	struct kvm_cpuid2 empty_cpuid = {};
+	struct kvm_regs regs1, regs2;
+	struct kvm_vcpu *vcpu, *vcpuN;
+	struct kvm_vm *vm;
+	struct kvm_x86_state *state;
+	struct ucall uc;
+	int stage;
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vcpu_regs_get(vcpu, &regs1);
+
+	if (kvm_has_cap(KVM_CAP_NESTED_STATE)) {
+		if (kvm_cpu_has(X86_FEATURE_SVM))
+			vcpu_alloc_svm(vm, &nested_gva);
+		else if (kvm_cpu_has(X86_FEATURE_VMX))
+			vcpu_alloc_vmx(vm, &nested_gva);
+	}
+
+	if (!nested_gva)
+		pr_info("will skip nested state checks\n");
+
+	vcpu_args_set(vcpu, 1, nested_gva);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		/* UCALL_SYNC is handled here.  */
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage, "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage, (ulong)uc.args[1]);
+
+		state = vcpu_save_state(vcpu);
+		memset(&regs1, 0, sizeof(regs1));
+		vcpu_regs_get(vcpu, &regs1);
+
+		kvm_vm_release(vm);
+
+		/* Restore state in a new VM.  */
+		vcpu = vm_recreate_with_one_vcpu(vm);
+		vcpu_load_state(vcpu, state);
+
+		/*
+		 * Restore XSAVE state in a dummy vCPU, first without doing
+		 * KVM_SET_CPUID2, and then with an empty guest CPUID.  Except
+		 * for off-by-default xfeatures, e.g. AMX, KVM is supposed to
+		 * allow KVM_SET_XSAVE regardless of guest CPUID.  Manually
+		 * load only XSAVE state, MSRs in particular have a much more
+		 * convoluted ABI.
+		 *
+		 * Load two versions of XSAVE state: one with the actual guest
+		 * XSAVE state, and one with all supported features forced "on"
+		 * in xstate_bv, e.g. to ensure that KVM allows loading all
+		 * supported features, even if something goes awry in saving
+		 * the original snapshot.
+		 */
+		xstate_bv = (void *)&((uint8_t *)state->xsave->region)[512];
+		saved_xstate_bv = *xstate_bv;
+
+		vcpuN = __vm_vcpu_add(vm, vcpu->id + 1);
+		vcpu_xsave_set(vcpuN, state->xsave);
+		*xstate_bv = kvm_cpu_supported_xcr0();
+		vcpu_xsave_set(vcpuN, state->xsave);
+
+		vcpu_init_cpuid(vcpuN, &empty_cpuid);
+		vcpu_xsave_set(vcpuN, state->xsave);
+		*xstate_bv = saved_xstate_bv;
+		vcpu_xsave_set(vcpuN, state->xsave);
+
+		kvm_x86_state_cleanup(state);
+
+		memset(&regs2, 0, sizeof(regs2));
+		vcpu_regs_get(vcpu, &regs2);
+		TEST_ASSERT(!memcmp(&regs1, &regs2, sizeof(regs2)),
+			    "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx",
+			    (ulong) regs2.rdi, (ulong) regs2.rsi);
+	}
+
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/svm_int_ctl_test.c b/tools/testing/selftests/kvm/x86/svm_int_ctl_test.c
new file mode 100644
index 000000000000..917b6066cfc1
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/svm_int_ctl_test.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * svm_int_ctl_test
+ *
+ * Copyright (C) 2021, Red Hat, Inc.
+ *
+ * Nested SVM testing: test simultaneous use of V_IRQ from L1 and L0.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "apic.h"
+
+bool vintr_irq_called;
+bool intr_irq_called;
+
+#define VINTR_IRQ_NUMBER 0x20
+#define INTR_IRQ_NUMBER 0x30
+
+static void vintr_irq_handler(struct ex_regs *regs)
+{
+	vintr_irq_called = true;
+}
+
+static void intr_irq_handler(struct ex_regs *regs)
+{
+	x2apic_write_reg(APIC_EOI, 0x00);
+	intr_irq_called = true;
+}
+
+static void l2_guest_code(struct svm_test_data *svm)
+{
+	/* This code raises interrupt INTR_IRQ_NUMBER in the L1's LAPIC,
+	 * and since L1 didn't enable virtual interrupt masking,
+	 * L2 should receive it and not L1.
+	 *
+	 * L2 also has virtual interrupt 'VINTR_IRQ_NUMBER' pending in V_IRQ
+	 * so it should also receive it after the following 'sti'.
+	 */
+	x2apic_write_reg(APIC_ICR,
+		APIC_DEST_SELF | APIC_INT_ASSERT | INTR_IRQ_NUMBER);
+
+	sti_nop();
+
+	GUEST_ASSERT(vintr_irq_called);
+	GUEST_ASSERT(intr_irq_called);
+
+	__asm__ __volatile__(
+		"vmcall\n"
+	);
+}
+
+static void l1_guest_code(struct svm_test_data *svm)
+{
+	#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	x2apic_enable();
+
+	/* Prepare for L2 execution. */
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* No virtual interrupt masking */
+	vmcb->control.int_ctl &= ~V_INTR_MASKING_MASK;
+
+	/* No intercepts for real and virtual interrupts */
+	vmcb->control.intercept &= ~(BIT(INTERCEPT_INTR) | BIT(INTERCEPT_VINTR));
+
+	/* Make a virtual interrupt VINTR_IRQ_NUMBER pending */
+	vmcb->control.int_ctl |= V_IRQ_MASK | (0x1 << V_INTR_PRIO_SHIFT);
+	vmcb->control.int_vector = VINTR_IRQ_NUMBER;
+
+	run_guest(vmcb, svm->vmcb_gpa);
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	vm_vaddr_t svm_gva;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	vm_install_exception_handler(vm, VINTR_IRQ_NUMBER, vintr_irq_handler);
+	vm_install_exception_handler(vm, INTR_IRQ_NUMBER, intr_irq_handler);
+
+	vcpu_alloc_svm(vm, &svm_gva);
+	vcpu_args_set(vcpu, 1, svm_gva);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+		/* NOT REACHED */
+	case UCALL_DONE:
+		goto done;
+	default:
+		TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+	}
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/svm_nested_shutdown_test.c b/tools/testing/selftests/kvm/x86/svm_nested_shutdown_test.c
new file mode 100644
index 000000000000..00135cbba35e
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/svm_nested_shutdown_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * svm_nested_shutdown_test
+ *
+ * Copyright (C) 2022, Red Hat, Inc.
+ *
+ * Nested SVM testing: test that unintercepted shutdown in L2 doesn't crash the host
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+
+static void l2_guest_code(struct svm_test_data *svm)
+{
+	__asm__ __volatile__("ud2");
+}
+
+static void l1_guest_code(struct svm_test_data *svm, struct idt_entry *idt)
+{
+	#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	vmcb->control.intercept &= ~(BIT(INTERCEPT_SHUTDOWN));
+
+	idt[6].p   = 0; // #UD is intercepted but its injection will cause #NP
+	idt[11].p  = 0; // #NP is not intercepted and will cause another
+			// #NP that will be converted to #DF
+	idt[8].p   = 0; // #DF will cause #NP which will cause SHUTDOWN
+
+	run_guest(vmcb, svm->vmcb_gpa);
+
+	/* should not reach here */
+	GUEST_ASSERT(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	vm_vaddr_t svm_gva;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+	vcpu_alloc_svm(vm, &svm_gva);
+
+	vcpu_args_set(vcpu, 2, svm_gva, vm->arch.idt);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_SHUTDOWN);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/svm_nested_soft_inject_test.c b/tools/testing/selftests/kvm/x86/svm_nested_soft_inject_test.c
new file mode 100644
index 000000000000..7b6481d6c0d3
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/svm_nested_soft_inject_test.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 Oracle and/or its affiliates.
+ *
+ * Based on:
+ *   svm_int_ctl_test
+ *
+ *   Copyright (C) 2021, Red Hat, Inc.
+ *
+ */
+#include <stdatomic.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "apic.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+#include "test_util.h"
+
+#define INT_NR			0x20
+
+static_assert(ATOMIC_INT_LOCK_FREE == 2, "atomic int is not lockless");
+
+static unsigned int bp_fired;
+static void guest_bp_handler(struct ex_regs *regs)
+{
+	bp_fired++;
+}
+
+static unsigned int int_fired;
+static void l2_guest_code_int(void);
+
+static void guest_int_handler(struct ex_regs *regs)
+{
+	int_fired++;
+	GUEST_ASSERT_EQ(regs->rip, (unsigned long)l2_guest_code_int);
+}
+
+static void l2_guest_code_int(void)
+{
+	GUEST_ASSERT_EQ(int_fired, 1);
+
+	/*
+         * Same as the vmmcall() function, but with a ud2 sneaked after the
+         * vmmcall.  The caller injects an exception with the return address
+         * increased by 2, so the "pop rbp" must be after the ud2 and we cannot
+	 * use vmmcall() directly.
+         */
+	__asm__ __volatile__("push %%rbp; vmmcall; ud2; pop %%rbp"
+                             : : "a"(0xdeadbeef), "c"(0xbeefdead)
+                             : "rbx", "rdx", "rsi", "rdi", "r8", "r9",
+                               "r10", "r11", "r12", "r13", "r14", "r15");
+
+	GUEST_ASSERT_EQ(bp_fired, 1);
+	hlt();
+}
+
+static atomic_int nmi_stage;
+#define nmi_stage_get() atomic_load_explicit(&nmi_stage, memory_order_acquire)
+#define nmi_stage_inc() atomic_fetch_add_explicit(&nmi_stage, 1, memory_order_acq_rel)
+static void guest_nmi_handler(struct ex_regs *regs)
+{
+	nmi_stage_inc();
+
+	if (nmi_stage_get() == 1) {
+		vmmcall();
+		GUEST_FAIL("Unexpected resume after VMMCALL");
+	} else {
+		GUEST_ASSERT_EQ(nmi_stage_get(), 3);
+		GUEST_DONE();
+	}
+}
+
+static void l2_guest_code_nmi(void)
+{
+	ud2();
+}
+
+static void l1_guest_code(struct svm_test_data *svm, uint64_t is_nmi, uint64_t idt_alt)
+{
+	#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	if (is_nmi)
+		x2apic_enable();
+
+	/* Prepare for L2 execution. */
+	generic_svm_setup(svm,
+			  is_nmi ? l2_guest_code_nmi : l2_guest_code_int,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	vmcb->control.intercept_exceptions |= BIT(PF_VECTOR) | BIT(UD_VECTOR);
+	vmcb->control.intercept |= BIT(INTERCEPT_NMI) | BIT(INTERCEPT_HLT);
+
+	if (is_nmi) {
+		vmcb->control.event_inj = SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_NMI;
+	} else {
+		vmcb->control.event_inj = INT_NR | SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_SOFT;
+		/* The return address pushed on stack */
+		vmcb->control.next_rip = vmcb->save.rip;
+	}
+
+	run_guest(vmcb, svm->vmcb_gpa);
+	__GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL,
+		       "Expected VMMCAL #VMEXIT, got '0x%x', info1 = '0x%lx, info2 = '0x%lx'",
+		       vmcb->control.exit_code,
+		       vmcb->control.exit_info_1, vmcb->control.exit_info_2);
+
+	if (is_nmi) {
+		clgi();
+		x2apic_write_reg(APIC_ICR, APIC_DEST_SELF | APIC_INT_ASSERT | APIC_DM_NMI);
+
+		GUEST_ASSERT_EQ(nmi_stage_get(), 1);
+		nmi_stage_inc();
+
+		stgi();
+		/* self-NMI happens here */
+		while (true)
+			cpu_relax();
+	}
+
+	/* Skip over VMMCALL */
+	vmcb->save.rip += 3;
+
+	/* Switch to alternate IDT to cause intervening NPF again */
+	vmcb->save.idtr.base = idt_alt;
+	vmcb->control.clean = 0; /* &= ~BIT(VMCB_DT) would be enough */
+
+	vmcb->control.event_inj = BP_VECTOR | SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_EXEPT;
+	/* The return address pushed on stack, skip over UD2 */
+	vmcb->control.next_rip = vmcb->save.rip + 2;
+
+	run_guest(vmcb, svm->vmcb_gpa);
+	__GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_HLT,
+		       "Expected HLT #VMEXIT, got '0x%x', info1 = '0x%lx, info2 = '0x%lx'",
+		       vmcb->control.exit_code,
+		       vmcb->control.exit_info_1, vmcb->control.exit_info_2);
+
+	GUEST_DONE();
+}
+
+static void run_test(bool is_nmi)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	vm_vaddr_t svm_gva;
+	vm_vaddr_t idt_alt_vm;
+	struct kvm_guest_debug debug;
+
+	pr_info("Running %s test\n", is_nmi ? "NMI" : "soft int");
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	vm_install_exception_handler(vm, NMI_VECTOR, guest_nmi_handler);
+	vm_install_exception_handler(vm, BP_VECTOR, guest_bp_handler);
+	vm_install_exception_handler(vm, INT_NR, guest_int_handler);
+
+	vcpu_alloc_svm(vm, &svm_gva);
+
+	if (!is_nmi) {
+		void *idt, *idt_alt;
+
+		idt_alt_vm = vm_vaddr_alloc_page(vm);
+		idt_alt = addr_gva2hva(vm, idt_alt_vm);
+		idt = addr_gva2hva(vm, vm->arch.idt);
+		memcpy(idt_alt, idt, getpagesize());
+	} else {
+		idt_alt_vm = 0;
+	}
+	vcpu_args_set(vcpu, 3, svm_gva, (uint64_t)is_nmi, (uint64_t)idt_alt_vm);
+
+	memset(&debug, 0, sizeof(debug));
+	vcpu_guest_debug_set(vcpu, &debug);
+
+	struct ucall uc;
+
+	alarm(2);
+	vcpu_run(vcpu);
+	alarm(0);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+		/* NOT REACHED */
+	case UCALL_DONE:
+		goto done;
+	default:
+		TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+	}
+done:
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
+
+	TEST_ASSERT(kvm_cpu_has(X86_FEATURE_NRIPS),
+		    "KVM with nSVM is supposed to unconditionally advertise nRIP Save");
+
+	atomic_init(&nmi_stage, 0);
+
+	run_test(false);
+	run_test(true);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/svm_vmcall_test.c b/tools/testing/selftests/kvm/x86/svm_vmcall_test.c
new file mode 100644
index 000000000000..8a62cca28cfb
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/svm_vmcall_test.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * svm_vmcall_test
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ *
+ * Nested SVM testing: VMCALL
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "svm_util.h"
+
+static void l2_guest_code(struct svm_test_data *svm)
+{
+	__asm__ __volatile__("vmcall");
+}
+
+static void l1_guest_code(struct svm_test_data *svm)
+{
+	#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	struct vmcb *vmcb = svm->vmcb;
+
+	/* Prepare for L2 execution. */
+	generic_svm_setup(svm, l2_guest_code,
+			  &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	run_guest(vmcb, svm->vmcb_gpa);
+
+	GUEST_ASSERT(vmcb->control.exit_code == SVM_EXIT_VMMCALL);
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	vm_vaddr_t svm_gva;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_SVM));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	vcpu_alloc_svm(vm, &svm_gva);
+	vcpu_args_set(vcpu, 1, svm_gva);
+
+	for (;;) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+		}
+	}
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/sync_regs_test.c b/tools/testing/selftests/kvm/x86/sync_regs_test.c
new file mode 100644
index 000000000000..8fa3948b0170
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/sync_regs_test.c
@@ -0,0 +1,411 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test for x86 KVM_CAP_SYNC_REGS
+ *
+ * Copyright (C) 2018, Google LLC.
+ *
+ * Verifies expected behavior of x86 KVM_CAP_SYNC_REGS functionality,
+ * including requesting an invalid register set, updates to/from values
+ * in kvm_run.s.regs when kvm_valid_regs and kvm_dirty_regs are toggled.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <pthread.h>
+
+#include "kvm_test_harness.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#define UCALL_PIO_PORT ((uint16_t)0x1000)
+
+struct ucall uc_none = {
+	.cmd = UCALL_NONE,
+};
+
+/*
+ * ucall is embedded here to protect against compiler reshuffling registers
+ * before calling a function. In this test we only need to get KVM_EXIT_IO
+ * vmexit and preserve RBX, no additional information is needed.
+ */
+void guest_code(void)
+{
+	asm volatile("1: in %[port], %%al\n"
+		     "add $0x1, %%rbx\n"
+		     "jmp 1b"
+		     : : [port] "d" (UCALL_PIO_PORT), "D" (&uc_none)
+		     : "rax", "rbx");
+}
+
+KVM_ONE_VCPU_TEST_SUITE(sync_regs_test);
+
+static void compare_regs(struct kvm_regs *left, struct kvm_regs *right)
+{
+#define REG_COMPARE(reg) \
+	TEST_ASSERT(left->reg == right->reg, \
+		    "Register " #reg \
+		    " values did not match: 0x%llx, 0x%llx", \
+		    left->reg, right->reg)
+	REG_COMPARE(rax);
+	REG_COMPARE(rbx);
+	REG_COMPARE(rcx);
+	REG_COMPARE(rdx);
+	REG_COMPARE(rsi);
+	REG_COMPARE(rdi);
+	REG_COMPARE(rsp);
+	REG_COMPARE(rbp);
+	REG_COMPARE(r8);
+	REG_COMPARE(r9);
+	REG_COMPARE(r10);
+	REG_COMPARE(r11);
+	REG_COMPARE(r12);
+	REG_COMPARE(r13);
+	REG_COMPARE(r14);
+	REG_COMPARE(r15);
+	REG_COMPARE(rip);
+	REG_COMPARE(rflags);
+#undef REG_COMPARE
+}
+
+static void compare_sregs(struct kvm_sregs *left, struct kvm_sregs *right)
+{
+}
+
+static void compare_vcpu_events(struct kvm_vcpu_events *left,
+				struct kvm_vcpu_events *right)
+{
+}
+
+#define TEST_SYNC_FIELDS   (KVM_SYNC_X86_REGS|KVM_SYNC_X86_SREGS|KVM_SYNC_X86_EVENTS)
+#define INVALID_SYNC_FIELD 0x80000000
+
+/*
+ * Set an exception as pending *and* injected while KVM is processing events.
+ * KVM is supposed to ignore/drop pending exceptions if userspace is also
+ * requesting that an exception be injected.
+ */
+static void *race_events_inj_pen(void *arg)
+{
+	struct kvm_run *run = (struct kvm_run *)arg;
+	struct kvm_vcpu_events *events = &run->s.regs.events;
+
+	WRITE_ONCE(events->exception.nr, UD_VECTOR);
+
+	for (;;) {
+		WRITE_ONCE(run->kvm_dirty_regs, KVM_SYNC_X86_EVENTS);
+		WRITE_ONCE(events->flags, 0);
+		WRITE_ONCE(events->exception.injected, 1);
+		WRITE_ONCE(events->exception.pending, 1);
+
+		pthread_testcancel();
+	}
+
+	return NULL;
+}
+
+/*
+ * Set an invalid exception vector while KVM is processing events.  KVM is
+ * supposed to reject any vector >= 32, as well as NMIs (vector 2).
+ */
+static void *race_events_exc(void *arg)
+{
+	struct kvm_run *run = (struct kvm_run *)arg;
+	struct kvm_vcpu_events *events = &run->s.regs.events;
+
+	for (;;) {
+		WRITE_ONCE(run->kvm_dirty_regs, KVM_SYNC_X86_EVENTS);
+		WRITE_ONCE(events->flags, 0);
+		WRITE_ONCE(events->exception.nr, UD_VECTOR);
+		WRITE_ONCE(events->exception.pending, 1);
+		WRITE_ONCE(events->exception.nr, 255);
+
+		pthread_testcancel();
+	}
+
+	return NULL;
+}
+
+/*
+ * Toggle CR4.PAE while KVM is processing SREGS, EFER.LME=1 with CR4.PAE=0 is
+ * illegal, and KVM's MMU heavily relies on vCPU state being valid.
+ */
+static noinline void *race_sregs_cr4(void *arg)
+{
+	struct kvm_run *run = (struct kvm_run *)arg;
+	__u64 *cr4 = &run->s.regs.sregs.cr4;
+	__u64 pae_enabled = *cr4;
+	__u64 pae_disabled = *cr4 & ~X86_CR4_PAE;
+
+	for (;;) {
+		WRITE_ONCE(run->kvm_dirty_regs, KVM_SYNC_X86_SREGS);
+		WRITE_ONCE(*cr4, pae_enabled);
+		asm volatile(".rept 512\n\t"
+			     "nop\n\t"
+			     ".endr");
+		WRITE_ONCE(*cr4, pae_disabled);
+
+		pthread_testcancel();
+	}
+
+	return NULL;
+}
+
+static void race_sync_regs(struct kvm_vcpu *vcpu, void *racer)
+{
+	const time_t TIMEOUT = 2; /* seconds, roughly */
+	struct kvm_x86_state *state;
+	struct kvm_translation tr;
+	struct kvm_run *run;
+	pthread_t thread;
+	time_t t;
+
+	run = vcpu->run;
+
+	run->kvm_valid_regs = KVM_SYNC_X86_SREGS;
+	vcpu_run(vcpu);
+	run->kvm_valid_regs = 0;
+
+	/* Save state *before* spawning the thread that mucks with vCPU state. */
+	state = vcpu_save_state(vcpu);
+
+	/*
+	 * Selftests run 64-bit guests by default, both EFER.LME and CR4.PAE
+	 * should already be set in guest state.
+	 */
+	TEST_ASSERT((run->s.regs.sregs.cr4 & X86_CR4_PAE) &&
+		    (run->s.regs.sregs.efer & EFER_LME),
+		    "vCPU should be in long mode, CR4.PAE=%d, EFER.LME=%d",
+		    !!(run->s.regs.sregs.cr4 & X86_CR4_PAE),
+		    !!(run->s.regs.sregs.efer & EFER_LME));
+
+	TEST_ASSERT_EQ(pthread_create(&thread, NULL, racer, (void *)run), 0);
+
+	for (t = time(NULL) + TIMEOUT; time(NULL) < t;) {
+		/*
+		 * Reload known good state if the vCPU triple faults, e.g. due
+		 * to the unhandled #GPs being injected.  VMX preserves state
+		 * on shutdown, but SVM synthesizes an INIT as the VMCB state
+		 * is architecturally undefined on triple fault.
+		 */
+		if (!__vcpu_run(vcpu) && run->exit_reason == KVM_EXIT_SHUTDOWN)
+			vcpu_load_state(vcpu, state);
+
+		if (racer == race_sregs_cr4) {
+			tr = (struct kvm_translation) { .linear_address = 0 };
+			__vcpu_ioctl(vcpu, KVM_TRANSLATE, &tr);
+		}
+	}
+
+	TEST_ASSERT_EQ(pthread_cancel(thread), 0);
+	TEST_ASSERT_EQ(pthread_join(thread, NULL), 0);
+
+	kvm_x86_state_cleanup(state);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, read_invalid, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	int rv;
+
+	/* Request reading invalid register set from VCPU. */
+	run->kvm_valid_regs = INVALID_SYNC_FIELD;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_valid_regs = 0;
+
+	run->kvm_valid_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_valid_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_valid_regs = 0;
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, set_invalid, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	int rv;
+
+	/* Request setting invalid register set into VCPU. */
+	run->kvm_dirty_regs = INVALID_SYNC_FIELD;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_dirty_regs = 0;
+
+	run->kvm_dirty_regs = INVALID_SYNC_FIELD | TEST_SYNC_FIELDS;
+	rv = _vcpu_run(vcpu);
+	TEST_ASSERT(rv < 0 && errno == EINVAL,
+		    "Invalid kvm_dirty_regs did not cause expected KVM_RUN error: %d",
+		    rv);
+	run->kvm_dirty_regs = 0;
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, req_and_verify_all_valid, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_vcpu_events events;
+	struct kvm_sregs sregs;
+	struct kvm_regs regs;
+
+	/* Request and verify all valid register sets. */
+	/* TODO: BUILD TIME CHECK: TEST_ASSERT(KVM_SYNC_X86_NUM_FIELDS != 3); */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	vcpu_regs_get(vcpu, &regs);
+	compare_regs(&regs, &run->s.regs.regs);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	compare_sregs(&sregs, &run->s.regs.sregs);
+
+	vcpu_events_get(vcpu, &events);
+	compare_vcpu_events(&events, &run->s.regs.events);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, set_and_verify_various, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_vcpu_events events;
+	struct kvm_sregs sregs;
+	struct kvm_regs regs;
+
+	/* Run once to get register set */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	/* Set and verify various register values. */
+	run->s.regs.regs.rbx = 0xBAD1DEA;
+	run->s.regs.sregs.apic_base = 1 << 11;
+	/* TODO run->s.regs.events.XYZ = ABC; */
+
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	run->kvm_dirty_regs = KVM_SYNC_X86_REGS | KVM_SYNC_X86_SREGS;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(run->s.regs.regs.rbx == 0xBAD1DEA + 1,
+		    "rbx sync regs value incorrect 0x%llx.",
+		    run->s.regs.regs.rbx);
+	TEST_ASSERT(run->s.regs.sregs.apic_base == 1 << 11,
+		    "apic_base sync regs value incorrect 0x%llx.",
+		    run->s.regs.sregs.apic_base);
+
+	vcpu_regs_get(vcpu, &regs);
+	compare_regs(&regs, &run->s.regs.regs);
+
+	vcpu_sregs_get(vcpu, &sregs);
+	compare_sregs(&sregs, &run->s.regs.sregs);
+
+	vcpu_events_get(vcpu, &events);
+	compare_vcpu_events(&events, &run->s.regs.events);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, clear_kvm_dirty_regs_bits, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+
+	/* Clear kvm_dirty_regs bits, verify new s.regs values are
+	 * overwritten with existing guest values.
+	 */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	run->kvm_dirty_regs = 0;
+	run->s.regs.regs.rbx = 0xDEADBEEF;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(run->s.regs.regs.rbx != 0xDEADBEEF,
+		    "rbx sync regs value incorrect 0x%llx.",
+		    run->s.regs.regs.rbx);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, clear_kvm_valid_and_dirty_regs, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_regs regs;
+
+	/* Run once to get register set */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	/* Clear kvm_valid_regs bits and kvm_dirty_bits.
+	 * Verify s.regs values are not overwritten with existing guest values
+	 * and that guest values are not overwritten with kvm_sync_regs values.
+	 */
+	run->kvm_valid_regs = 0;
+	run->kvm_dirty_regs = 0;
+	run->s.regs.regs.rbx = 0xAAAA;
+	vcpu_regs_get(vcpu, &regs);
+	regs.rbx = 0xBAC0;
+	vcpu_regs_set(vcpu, &regs);
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(run->s.regs.regs.rbx == 0xAAAA,
+		    "rbx sync regs value incorrect 0x%llx.",
+		    run->s.regs.regs.rbx);
+	vcpu_regs_get(vcpu, &regs);
+	TEST_ASSERT(regs.rbx == 0xBAC0 + 1,
+		    "rbx guest value incorrect 0x%llx.",
+		    regs.rbx);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, clear_kvm_valid_regs_bits, guest_code)
+{
+	struct kvm_run *run = vcpu->run;
+	struct kvm_regs regs;
+
+	/* Run once to get register set */
+	run->kvm_valid_regs = TEST_SYNC_FIELDS;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	/* Clear kvm_valid_regs bits. Verify s.regs values are not overwritten
+	 * with existing guest values but that guest values are overwritten
+	 * with kvm_sync_regs values.
+	 */
+	run->kvm_valid_regs = 0;
+	run->kvm_dirty_regs = TEST_SYNC_FIELDS;
+	run->s.regs.regs.rbx = 0xBBBB;
+	vcpu_run(vcpu);
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(run->s.regs.regs.rbx == 0xBBBB,
+		    "rbx sync regs value incorrect 0x%llx.",
+		    run->s.regs.regs.rbx);
+	vcpu_regs_get(vcpu, &regs);
+	TEST_ASSERT(regs.rbx == 0xBBBB + 1,
+		    "rbx guest value incorrect 0x%llx.",
+		    regs.rbx);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, race_cr4, guest_code)
+{
+	race_sync_regs(vcpu, race_sregs_cr4);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, race_exc, guest_code)
+{
+	race_sync_regs(vcpu, race_events_exc);
+}
+
+KVM_ONE_VCPU_TEST(sync_regs_test, race_inj_pen, guest_code)
+{
+	race_sync_regs(vcpu, race_events_inj_pen);
+}
+
+int main(int argc, char *argv[])
+{
+	int cap;
+
+	cap = kvm_check_cap(KVM_CAP_SYNC_REGS);
+	TEST_REQUIRE((cap & TEST_SYNC_FIELDS) == TEST_SYNC_FIELDS);
+	TEST_REQUIRE(!(cap & INVALID_SYNC_FIELD));
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/kvm/x86/triple_fault_event_test.c b/tools/testing/selftests/kvm/x86/triple_fault_event_test.c
new file mode 100644
index 000000000000..56306a19144a
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/triple_fault_event_test.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+#include "svm_util.h"
+
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kselftest.h"
+
+#define ARBITRARY_IO_PORT	0x2000
+
+/* The virtual machine object. */
+static struct kvm_vm *vm;
+
+static void l2_guest_code(void)
+{
+	asm volatile("inb %%dx, %%al"
+		     : : [port] "d" (ARBITRARY_IO_PORT) : "rax");
+}
+
+#define L2_GUEST_STACK_SIZE 64
+unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+void l1_guest_code_vmx(struct vmx_pages *vmx)
+{
+
+	GUEST_ASSERT(vmx->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx));
+	GUEST_ASSERT(load_vmcs(vmx));
+
+	prepare_vmcs(vmx, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_ASSERT(!vmlaunch());
+	/* L2 should triple fault after a triple fault event injected. */
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_TRIPLE_FAULT);
+	GUEST_DONE();
+}
+
+void l1_guest_code_svm(struct svm_test_data *svm)
+{
+	struct vmcb *vmcb = svm->vmcb;
+
+	generic_svm_setup(svm, l2_guest_code,
+			&l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/* don't intercept shutdown to test the case of SVM allowing to do so */
+	vmcb->control.intercept &= ~(BIT(INTERCEPT_SHUTDOWN));
+
+	run_guest(vmcb, svm->vmcb_gpa);
+
+	/* should not reach here, L1 should crash  */
+	GUEST_ASSERT(0);
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vcpu_events events;
+	struct ucall uc;
+
+	bool has_vmx = kvm_cpu_has(X86_FEATURE_VMX);
+	bool has_svm = kvm_cpu_has(X86_FEATURE_SVM);
+
+	TEST_REQUIRE(has_vmx || has_svm);
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_X86_TRIPLE_FAULT_EVENT));
+
+
+	if (has_vmx) {
+		vm_vaddr_t vmx_pages_gva;
+
+		vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code_vmx);
+		vcpu_alloc_vmx(vm, &vmx_pages_gva);
+		vcpu_args_set(vcpu, 1, vmx_pages_gva);
+	} else {
+		vm_vaddr_t svm_gva;
+
+		vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code_svm);
+		vcpu_alloc_svm(vm, &svm_gva);
+		vcpu_args_set(vcpu, 1, svm_gva);
+	}
+
+	vm_enable_cap(vm, KVM_CAP_X86_TRIPLE_FAULT_EVENT, 1);
+	run = vcpu->run;
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(run->io.port == ARBITRARY_IO_PORT,
+		    "Expected IN from port %d from L2, got port %d",
+		    ARBITRARY_IO_PORT, run->io.port);
+	vcpu_events_get(vcpu, &events);
+	events.flags |= KVM_VCPUEVENT_VALID_TRIPLE_FAULT;
+	events.triple_fault.pending = true;
+	vcpu_events_set(vcpu, &events);
+	run->immediate_exit = true;
+	vcpu_run_complete_io(vcpu);
+
+	vcpu_events_get(vcpu, &events);
+	TEST_ASSERT(events.flags & KVM_VCPUEVENT_VALID_TRIPLE_FAULT,
+		    "Triple fault event invalid");
+	TEST_ASSERT(events.triple_fault.pending,
+		    "No triple fault pending");
+	vcpu_run(vcpu);
+
+
+	if (has_svm) {
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_SHUTDOWN);
+	} else {
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_DONE:
+			break;
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+		default:
+			TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+		}
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/tsc_msrs_test.c b/tools/testing/selftests/kvm/x86/tsc_msrs_test.c
new file mode 100644
index 000000000000..12b0964f4f13
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/tsc_msrs_test.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests for MSR_IA32_TSC and MSR_IA32_TSC_ADJUST.
+ *
+ * Copyright (C) 2020, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <string.h>
+#include "kvm_util.h"
+#include "processor.h"
+
+#define UNITY                  (1ull << 30)
+#define HOST_ADJUST            (UNITY * 64)
+#define GUEST_STEP             (UNITY * 4)
+#define ROUND(x)               ((x + UNITY / 2) & -UNITY)
+#define rounded_rdmsr(x)       ROUND(rdmsr(x))
+#define rounded_host_rdmsr(x)  ROUND(vcpu_get_msr(vcpu, x))
+
+static void guest_code(void)
+{
+	u64 val = 0;
+
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/* Guest: writes to MSR_IA32_TSC affect both MSRs.  */
+	val = 1ull * GUEST_STEP;
+	wrmsr(MSR_IA32_TSC, val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/* Guest: writes to MSR_IA32_TSC_ADJUST affect both MSRs.  */
+	GUEST_SYNC(2);
+	val = 2ull * GUEST_STEP;
+	wrmsr(MSR_IA32_TSC_ADJUST, val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/* Host: setting the TSC offset.  */
+	GUEST_SYNC(3);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/*
+	 * Guest: writes to MSR_IA32_TSC_ADJUST do not destroy the
+	 * host-side offset and affect both MSRs.
+	 */
+	GUEST_SYNC(4);
+	val = 3ull * GUEST_STEP;
+	wrmsr(MSR_IA32_TSC_ADJUST, val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/*
+	 * Guest: writes to MSR_IA32_TSC affect both MSRs, so the host-side
+	 * offset is now visible in MSR_IA32_TSC_ADJUST.
+	 */
+	GUEST_SYNC(5);
+	val = 4ull * GUEST_STEP;
+	wrmsr(MSR_IA32_TSC, val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC), val);
+	GUEST_ASSERT_EQ(rounded_rdmsr(MSR_IA32_TSC_ADJUST), val - HOST_ADJUST);
+
+	GUEST_DONE();
+}
+
+static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+		if (!strcmp((const char *)uc.args[0], "hello") &&
+		    uc.args[1] == stage + 1)
+			ksft_test_result_pass("stage %d passed\n", stage + 1);
+		else
+			ksft_test_result_fail(
+				"stage %d: Unexpected register values vmexit, got %lx",
+				stage + 1, (ulong)uc.args[1]);
+		return;
+	case UCALL_DONE:
+		ksft_test_result_pass("stage %d passed\n", stage + 1);
+		return;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_ASSERT(false, "Unexpected exit: %s",
+			    exit_reason_str(vcpu->run->exit_reason));
+	}
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	uint64_t val;
+
+	ksft_print_header();
+	ksft_set_plan(5);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	val = 0;
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/* Guest: writes to MSR_IA32_TSC affect both MSRs.  */
+	run_vcpu(vcpu, 1);
+	val = 1ull * GUEST_STEP;
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/* Guest: writes to MSR_IA32_TSC_ADJUST affect both MSRs.  */
+	run_vcpu(vcpu, 2);
+	val = 2ull * GUEST_STEP;
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/*
+	 * Host: writes to MSR_IA32_TSC set the host-side offset
+	 * and therefore do not change MSR_IA32_TSC_ADJUST.
+	 */
+	vcpu_set_msr(vcpu, MSR_IA32_TSC, HOST_ADJUST + val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+	run_vcpu(vcpu, 3);
+
+	/* Host: writes to MSR_IA32_TSC_ADJUST do not modify the TSC.  */
+	vcpu_set_msr(vcpu, MSR_IA32_TSC_ADJUST, UNITY * 123456);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	TEST_ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_TSC_ADJUST), UNITY * 123456);
+
+	/* Restore previous value.  */
+	vcpu_set_msr(vcpu, MSR_IA32_TSC_ADJUST, val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/*
+	 * Guest: writes to MSR_IA32_TSC_ADJUST do not destroy the
+	 * host-side offset and affect both MSRs.
+	 */
+	run_vcpu(vcpu, 4);
+	val = 3ull * GUEST_STEP;
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), HOST_ADJUST + val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val);
+
+	/*
+	 * Guest: writes to MSR_IA32_TSC affect both MSRs, so the host-side
+	 * offset is now visible in MSR_IA32_TSC_ADJUST.
+	 */
+	run_vcpu(vcpu, 5);
+	val = 4ull * GUEST_STEP;
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC), val);
+	TEST_ASSERT_EQ(rounded_host_rdmsr(MSR_IA32_TSC_ADJUST), val - HOST_ADJUST);
+
+	kvm_vm_free(vm);
+
+	ksft_finished();	/* Print results and exit() accordingly */
+}
diff --git a/tools/testing/selftests/kvm/x86/tsc_scaling_sync.c b/tools/testing/selftests/kvm/x86/tsc_scaling_sync.c
new file mode 100644
index 000000000000..59c7304f805e
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/tsc_scaling_sync.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2021 Amazon.com, Inc. or its affiliates.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#include <stdint.h>
+#include <time.h>
+#include <sched.h>
+#include <signal.h>
+#include <pthread.h>
+
+#define NR_TEST_VCPUS 20
+
+static struct kvm_vm *vm;
+pthread_spinlock_t create_lock;
+
+#define TEST_TSC_KHZ    2345678UL
+#define TEST_TSC_OFFSET 200000000
+
+uint64_t tsc_sync;
+static void guest_code(void)
+{
+	uint64_t start_tsc, local_tsc, tmp;
+
+	start_tsc = rdtsc();
+	do {
+		tmp = READ_ONCE(tsc_sync);
+		local_tsc = rdtsc();
+		WRITE_ONCE(tsc_sync, local_tsc);
+		if (unlikely(local_tsc < tmp))
+			GUEST_SYNC_ARGS(0, local_tsc, tmp, 0, 0);
+
+	} while (local_tsc - start_tsc < 5000 * TEST_TSC_KHZ);
+
+	GUEST_DONE();
+}
+
+
+static void *run_vcpu(void *_cpu_nr)
+{
+	unsigned long vcpu_id = (unsigned long)_cpu_nr;
+	unsigned long failures = 0;
+	static bool first_cpu_done;
+	struct kvm_vcpu *vcpu;
+
+	/* The kernel is fine, but vm_vcpu_add() needs locking */
+	pthread_spin_lock(&create_lock);
+
+	vcpu = vm_vcpu_add(vm, vcpu_id, guest_code);
+
+	if (!first_cpu_done) {
+		first_cpu_done = true;
+		vcpu_set_msr(vcpu, MSR_IA32_TSC, TEST_TSC_OFFSET);
+	}
+
+	pthread_spin_unlock(&create_lock);
+
+	for (;;) {
+                struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+                case UCALL_DONE:
+			goto out;
+
+                case UCALL_SYNC:
+			printf("Guest %d sync %lx %lx %ld\n", vcpu->id,
+			       uc.args[2], uc.args[3], uc.args[2] - uc.args[3]);
+			failures++;
+			break;
+
+                default:
+                        TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+ out:
+	return (void *)failures;
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_VM_TSC_CONTROL));
+
+	vm = vm_create(NR_TEST_VCPUS);
+	vm_ioctl(vm, KVM_SET_TSC_KHZ, (void *) TEST_TSC_KHZ);
+
+	pthread_spin_init(&create_lock, PTHREAD_PROCESS_PRIVATE);
+	pthread_t cpu_threads[NR_TEST_VCPUS];
+	unsigned long cpu;
+	for (cpu = 0; cpu < NR_TEST_VCPUS; cpu++)
+		pthread_create(&cpu_threads[cpu], NULL, run_vcpu, (void *)cpu);
+
+	unsigned long failures = 0;
+	for (cpu = 0; cpu < NR_TEST_VCPUS; cpu++) {
+		void *this_cpu_failures;
+		pthread_join(cpu_threads[cpu], &this_cpu_failures);
+		failures += (unsigned long)this_cpu_failures;
+	}
+
+	TEST_ASSERT(!failures, "TSC sync failed");
+	pthread_spin_destroy(&create_lock);
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/ucna_injection_test.c b/tools/testing/selftests/kvm/x86/ucna_injection_test.c
new file mode 100644
index 000000000000..1e5e564523b3
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/ucna_injection_test.c
@@ -0,0 +1,295 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ucna_injection_test
+ *
+ * Copyright (C) 2022, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * Test that user space can inject UnCorrectable No Action required (UCNA)
+ * memory errors to the guest.
+ *
+ * The test starts one vCPU with the MCG_CMCI_P enabled. It verifies that
+ * proper UCNA errors can be injected to a vCPU with MCG_CMCI_P and
+ * corresponding per-bank control register (MCI_CTL2) bit enabled.
+ * The test also checks that the UCNA errors get recorded in the
+ * Machine Check bank registers no matter the error signal interrupts get
+ * delivered into the guest or not.
+ *
+ */
+#include <pthread.h>
+#include <inttypes.h>
+#include <string.h>
+#include <time.h>
+
+#include "kvm_util.h"
+#include "mce.h"
+#include "processor.h"
+#include "test_util.h"
+#include "apic.h"
+
+#define SYNC_FIRST_UCNA 9
+#define SYNC_SECOND_UCNA 10
+#define SYNC_GP 11
+#define FIRST_UCNA_ADDR 0xdeadbeef
+#define SECOND_UCNA_ADDR 0xcafeb0ba
+
+/*
+ * Vector for the CMCI interrupt.
+ * Value is arbitrary. Any value in 0x20-0xFF should work:
+ * https://wiki.osdev.org/Interrupt_Vector_Table
+ */
+#define CMCI_VECTOR  0xa9
+
+#define UCNA_BANK  0x7	// IMC0 bank
+
+#define MCI_CTL2_RESERVED_BIT BIT_ULL(29)
+
+static uint64_t supported_mcg_caps;
+
+/*
+ * Record states about the injected UCNA.
+ * The variables started with the 'i_' prefixes are recorded in interrupt
+ * handler. Variables without the 'i_' prefixes are recorded in guest main
+ * execution thread.
+ */
+static volatile uint64_t i_ucna_rcvd;
+static volatile uint64_t i_ucna_addr;
+static volatile uint64_t ucna_addr;
+static volatile uint64_t ucna_addr2;
+
+struct thread_params {
+	struct kvm_vcpu *vcpu;
+	uint64_t *p_i_ucna_rcvd;
+	uint64_t *p_i_ucna_addr;
+	uint64_t *p_ucna_addr;
+	uint64_t *p_ucna_addr2;
+};
+
+static void verify_apic_base_addr(void)
+{
+	uint64_t msr = rdmsr(MSR_IA32_APICBASE);
+	uint64_t base = GET_APIC_BASE(msr);
+
+	GUEST_ASSERT(base == APIC_DEFAULT_GPA);
+}
+
+static void ucna_injection_guest_code(void)
+{
+	uint64_t ctl2;
+	verify_apic_base_addr();
+	xapic_enable();
+
+	/* Sets up the interrupt vector and enables per-bank CMCI sigaling. */
+	xapic_write_reg(APIC_LVTCMCI, CMCI_VECTOR | APIC_DM_FIXED);
+	ctl2 = rdmsr(MSR_IA32_MCx_CTL2(UCNA_BANK));
+	wrmsr(MSR_IA32_MCx_CTL2(UCNA_BANK), ctl2 | MCI_CTL2_CMCI_EN);
+
+	/* Enables interrupt in guest. */
+	sti();
+
+	/* Let user space inject the first UCNA */
+	GUEST_SYNC(SYNC_FIRST_UCNA);
+
+	ucna_addr = rdmsr(MSR_IA32_MCx_ADDR(UCNA_BANK));
+
+	/* Disables the per-bank CMCI signaling. */
+	ctl2 = rdmsr(MSR_IA32_MCx_CTL2(UCNA_BANK));
+	wrmsr(MSR_IA32_MCx_CTL2(UCNA_BANK), ctl2 & ~MCI_CTL2_CMCI_EN);
+
+	/* Let the user space inject the second UCNA */
+	GUEST_SYNC(SYNC_SECOND_UCNA);
+
+	ucna_addr2 = rdmsr(MSR_IA32_MCx_ADDR(UCNA_BANK));
+	GUEST_DONE();
+}
+
+static void cmci_disabled_guest_code(void)
+{
+	uint64_t ctl2 = rdmsr(MSR_IA32_MCx_CTL2(UCNA_BANK));
+	wrmsr(MSR_IA32_MCx_CTL2(UCNA_BANK), ctl2 | MCI_CTL2_CMCI_EN);
+
+	GUEST_DONE();
+}
+
+static void cmci_enabled_guest_code(void)
+{
+	uint64_t ctl2 = rdmsr(MSR_IA32_MCx_CTL2(UCNA_BANK));
+	wrmsr(MSR_IA32_MCx_CTL2(UCNA_BANK), ctl2 | MCI_CTL2_RESERVED_BIT);
+
+	GUEST_DONE();
+}
+
+static void guest_cmci_handler(struct ex_regs *regs)
+{
+	i_ucna_rcvd++;
+	i_ucna_addr = rdmsr(MSR_IA32_MCx_ADDR(UCNA_BANK));
+	xapic_write_reg(APIC_EOI, 0);
+}
+
+static void guest_gp_handler(struct ex_regs *regs)
+{
+	GUEST_SYNC(SYNC_GP);
+}
+
+static void run_vcpu_expect_gp(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(get_ucall(vcpu, &uc) == UCALL_SYNC,
+		    "Expect UCALL_SYNC");
+	TEST_ASSERT(uc.args[1] == SYNC_GP, "#GP is expected.");
+	printf("vCPU received GP in guest.\n");
+}
+
+static void inject_ucna(struct kvm_vcpu *vcpu, uint64_t addr) {
+	/*
+	 * A UCNA error is indicated with VAL=1, UC=1, PCC=0, S=0 and AR=0 in
+	 * the IA32_MCi_STATUS register.
+	 * MSCOD=1 (BIT[16] - MscodDataRdErr).
+	 * MCACOD=0x0090 (Memory controller error format, channel 0)
+	 */
+	uint64_t status = MCI_STATUS_VAL | MCI_STATUS_UC | MCI_STATUS_EN |
+			  MCI_STATUS_MISCV | MCI_STATUS_ADDRV | 0x10090;
+	struct kvm_x86_mce mce = {};
+	mce.status = status;
+	mce.mcg_status = 0;
+	/*
+	 * MCM_ADDR_PHYS indicates the reported address is a physical address.
+	 * Lowest 6 bits is the recoverable address LSB, i.e., the injected MCE
+	 * is at 4KB granularity.
+	 */
+	mce.misc = (MCM_ADDR_PHYS << 6) | 0xc;
+	mce.addr = addr;
+	mce.bank = UCNA_BANK;
+
+	vcpu_ioctl(vcpu, KVM_X86_SET_MCE, &mce);
+}
+
+static void *run_ucna_injection(void *arg)
+{
+	struct thread_params *params = (struct thread_params *)arg;
+	struct ucall uc;
+	int old;
+	int r;
+
+	r = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old);
+	TEST_ASSERT(r == 0,
+		    "pthread_setcanceltype failed with errno=%d",
+		    r);
+
+	vcpu_run(params->vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(params->vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(get_ucall(params->vcpu, &uc) == UCALL_SYNC,
+		    "Expect UCALL_SYNC");
+	TEST_ASSERT(uc.args[1] == SYNC_FIRST_UCNA, "Injecting first UCNA.");
+
+	printf("Injecting first UCNA at %#x.\n", FIRST_UCNA_ADDR);
+
+	inject_ucna(params->vcpu, FIRST_UCNA_ADDR);
+	vcpu_run(params->vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(params->vcpu, KVM_EXIT_IO);
+	TEST_ASSERT(get_ucall(params->vcpu, &uc) == UCALL_SYNC,
+		    "Expect UCALL_SYNC");
+	TEST_ASSERT(uc.args[1] == SYNC_SECOND_UCNA, "Injecting second UCNA.");
+
+	printf("Injecting second UCNA at %#x.\n", SECOND_UCNA_ADDR);
+
+	inject_ucna(params->vcpu, SECOND_UCNA_ADDR);
+	vcpu_run(params->vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(params->vcpu, KVM_EXIT_IO);
+	if (get_ucall(params->vcpu, &uc) == UCALL_ABORT) {
+		TEST_ASSERT(false, "vCPU assertion failure: %s.",
+			    (const char *)uc.args[0]);
+	}
+
+	return NULL;
+}
+
+static void test_ucna_injection(struct kvm_vcpu *vcpu, struct thread_params *params)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	params->vcpu = vcpu;
+	params->p_i_ucna_rcvd = (uint64_t *)addr_gva2hva(vm, (uint64_t)&i_ucna_rcvd);
+	params->p_i_ucna_addr = (uint64_t *)addr_gva2hva(vm, (uint64_t)&i_ucna_addr);
+	params->p_ucna_addr = (uint64_t *)addr_gva2hva(vm, (uint64_t)&ucna_addr);
+	params->p_ucna_addr2 = (uint64_t *)addr_gva2hva(vm, (uint64_t)&ucna_addr2);
+
+	run_ucna_injection(params);
+
+	TEST_ASSERT(*params->p_i_ucna_rcvd == 1, "Only first UCNA get signaled.");
+	TEST_ASSERT(*params->p_i_ucna_addr == FIRST_UCNA_ADDR,
+		    "Only first UCNA reported addr get recorded via interrupt.");
+	TEST_ASSERT(*params->p_ucna_addr == FIRST_UCNA_ADDR,
+		    "First injected UCNAs should get exposed via registers.");
+	TEST_ASSERT(*params->p_ucna_addr2 == SECOND_UCNA_ADDR,
+		    "Second injected UCNAs should get exposed via registers.");
+
+	printf("Test successful.\n"
+	       "UCNA CMCI interrupts received: %ld\n"
+	       "Last UCNA address received via CMCI: %lx\n"
+	       "First UCNA address in vCPU thread: %lx\n"
+	       "Second UCNA address in vCPU thread: %lx\n",
+	       *params->p_i_ucna_rcvd, *params->p_i_ucna_addr,
+	       *params->p_ucna_addr, *params->p_ucna_addr2);
+}
+
+static void setup_mce_cap(struct kvm_vcpu *vcpu, bool enable_cmci_p)
+{
+	uint64_t mcg_caps = MCG_CTL_P | MCG_SER_P | MCG_LMCE_P | KVM_MAX_MCE_BANKS;
+	if (enable_cmci_p)
+		mcg_caps |= MCG_CMCI_P;
+
+	mcg_caps &= supported_mcg_caps | MCG_CAP_BANKS_MASK;
+	vcpu_ioctl(vcpu, KVM_X86_SETUP_MCE, &mcg_caps);
+}
+
+static struct kvm_vcpu *create_vcpu_with_mce_cap(struct kvm_vm *vm, uint32_t vcpuid,
+						 bool enable_cmci_p, void *guest_code)
+{
+	struct kvm_vcpu *vcpu = vm_vcpu_add(vm, vcpuid, guest_code);
+	setup_mce_cap(vcpu, enable_cmci_p);
+	return vcpu;
+}
+
+int main(int argc, char *argv[])
+{
+	struct thread_params params;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *ucna_vcpu;
+	struct kvm_vcpu *cmcidis_vcpu;
+	struct kvm_vcpu *cmci_vcpu;
+
+	kvm_check_cap(KVM_CAP_MCE);
+
+	vm = __vm_create(VM_SHAPE_DEFAULT, 3, 0);
+
+	kvm_ioctl(vm->kvm_fd, KVM_X86_GET_MCE_CAP_SUPPORTED,
+		  &supported_mcg_caps);
+
+	if (!(supported_mcg_caps & MCG_CMCI_P)) {
+		print_skip("MCG_CMCI_P is not supported");
+		exit(KSFT_SKIP);
+	}
+
+	ucna_vcpu = create_vcpu_with_mce_cap(vm, 0, true, ucna_injection_guest_code);
+	cmcidis_vcpu = create_vcpu_with_mce_cap(vm, 1, false, cmci_disabled_guest_code);
+	cmci_vcpu = create_vcpu_with_mce_cap(vm, 2, true, cmci_enabled_guest_code);
+
+	vm_install_exception_handler(vm, CMCI_VECTOR, guest_cmci_handler);
+	vm_install_exception_handler(vm, GP_VECTOR, guest_gp_handler);
+
+	virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
+
+	test_ucna_injection(ucna_vcpu, &params);
+	run_vcpu_expect_gp(cmcidis_vcpu);
+	run_vcpu_expect_gp(cmci_vcpu);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/userspace_io_test.c b/tools/testing/selftests/kvm/x86/userspace_io_test.c
new file mode 100644
index 000000000000..be7d72f3c029
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/userspace_io_test.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+
+static void guest_ins_port80(uint8_t *buffer, unsigned int count)
+{
+	unsigned long end;
+
+	if (count == 2)
+		end = (unsigned long)buffer + 1;
+	else
+		end = (unsigned long)buffer + 8192;
+
+	asm volatile("cld; rep; insb" : "+D"(buffer), "+c"(count) : "d"(0x80) : "memory");
+	GUEST_ASSERT_EQ(count, 0);
+	GUEST_ASSERT_EQ((unsigned long)buffer, end);
+}
+
+static void guest_code(void)
+{
+	uint8_t buffer[8192];
+	int i;
+
+	/*
+	 * Special case tests.  main() will adjust RCX 2 => 1 and 3 => 8192 to
+	 * test that KVM doesn't explode when userspace modifies the "count" on
+	 * a userspace I/O exit.  KVM isn't required to play nice with the I/O
+	 * itself as KVM doesn't support manipulating the count, it just needs
+	 * to not explode or overflow a buffer.
+	 */
+	guest_ins_port80(buffer, 2);
+	guest_ins_port80(buffer, 3);
+
+	/* Verify KVM fills the buffer correctly when not stuffing RCX. */
+	memset(buffer, 0, sizeof(buffer));
+	guest_ins_port80(buffer, 8192);
+	for (i = 0; i < 8192; i++)
+		__GUEST_ASSERT(buffer[i] == 0xaa,
+			       "Expected '0xaa', got '0x%x' at buffer[%u]",
+			       buffer[i], i);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_regs regs;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	run = vcpu->run;
+
+	memset(&regs, 0, sizeof(regs));
+
+	while (1) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		if (get_ucall(vcpu, &uc))
+			break;
+
+		TEST_ASSERT(run->io.port == 0x80,
+			    "Expected I/O at port 0x80, got port 0x%x", run->io.port);
+
+		/*
+		 * Modify the rep string count in RCX: 2 => 1 and 3 => 8192.
+		 * Note, this abuses KVM's batching of rep string I/O to avoid
+		 * getting stuck in an infinite loop.  That behavior isn't in
+		 * scope from a testing perspective as it's not ABI in any way,
+		 * i.e. it really is abusing internal KVM knowledge.
+		 */
+		vcpu_regs_get(vcpu, &regs);
+		if (regs.rcx == 2)
+			regs.rcx = 1;
+		if (regs.rcx == 3)
+			regs.rcx = 8192;
+		memset((void *)run + run->io.data_offset, 0xaa, PAGE_SIZE);
+		vcpu_regs_set(vcpu, &regs);
+	}
+
+	switch (uc.cmd) {
+	case UCALL_DONE:
+		break;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_FAIL("Unknown ucall %lu", uc.cmd);
+	}
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/userspace_msr_exit_test.c b/tools/testing/selftests/kvm/x86/userspace_msr_exit_test.c
new file mode 100644
index 000000000000..8463a9956410
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/userspace_msr_exit_test.c
@@ -0,0 +1,777 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020, Google LLC.
+ *
+ * Tests for exiting into userspace on registered MSRs
+ */
+#include <sys/ioctl.h>
+
+#include "kvm_test_harness.h"
+#include "test_util.h"
+#include "kvm_util.h"
+#include "vmx.h"
+
+#define MSR_NON_EXISTENT 0x474f4f00
+
+static u64 deny_bits = 0;
+struct kvm_msr_filter filter_allow = {
+	.flags = KVM_MSR_FILTER_DEFAULT_ALLOW,
+	.ranges = {
+		{
+			.flags = KVM_MSR_FILTER_READ |
+				 KVM_MSR_FILTER_WRITE,
+			.nmsrs = 1,
+			/* Test an MSR the kernel knows about. */
+			.base = MSR_IA32_XSS,
+			.bitmap = (uint8_t*)&deny_bits,
+		}, {
+			.flags = KVM_MSR_FILTER_READ |
+				 KVM_MSR_FILTER_WRITE,
+			.nmsrs = 1,
+			/* Test an MSR the kernel doesn't know about. */
+			.base = MSR_IA32_FLUSH_CMD,
+			.bitmap = (uint8_t*)&deny_bits,
+		}, {
+			.flags = KVM_MSR_FILTER_READ |
+				 KVM_MSR_FILTER_WRITE,
+			.nmsrs = 1,
+			/* Test a fabricated MSR that no one knows about. */
+			.base = MSR_NON_EXISTENT,
+			.bitmap = (uint8_t*)&deny_bits,
+		},
+	},
+};
+
+struct kvm_msr_filter filter_fs = {
+	.flags = KVM_MSR_FILTER_DEFAULT_ALLOW,
+	.ranges = {
+		{
+			.flags = KVM_MSR_FILTER_READ,
+			.nmsrs = 1,
+			.base = MSR_FS_BASE,
+			.bitmap = (uint8_t*)&deny_bits,
+		},
+	},
+};
+
+struct kvm_msr_filter filter_gs = {
+	.flags = KVM_MSR_FILTER_DEFAULT_ALLOW,
+	.ranges = {
+		{
+			.flags = KVM_MSR_FILTER_READ,
+			.nmsrs = 1,
+			.base = MSR_GS_BASE,
+			.bitmap = (uint8_t*)&deny_bits,
+		},
+	},
+};
+
+static uint64_t msr_non_existent_data;
+static int guest_exception_count;
+static u32 msr_reads, msr_writes;
+
+static u8 bitmap_00000000[KVM_MSR_FILTER_MAX_BITMAP_SIZE];
+static u8 bitmap_00000000_write[KVM_MSR_FILTER_MAX_BITMAP_SIZE];
+static u8 bitmap_40000000[KVM_MSR_FILTER_MAX_BITMAP_SIZE];
+static u8 bitmap_c0000000[KVM_MSR_FILTER_MAX_BITMAP_SIZE];
+static u8 bitmap_c0000000_read[KVM_MSR_FILTER_MAX_BITMAP_SIZE];
+static u8 bitmap_deadbeef[1] = { 0x1 };
+
+static void deny_msr(uint8_t *bitmap, u32 msr)
+{
+	u32 idx = msr & (KVM_MSR_FILTER_MAX_BITMAP_SIZE - 1);
+
+	bitmap[idx / 8] &= ~(1 << (idx % 8));
+}
+
+static void prepare_bitmaps(void)
+{
+	memset(bitmap_00000000, 0xff, sizeof(bitmap_00000000));
+	memset(bitmap_00000000_write, 0xff, sizeof(bitmap_00000000_write));
+	memset(bitmap_40000000, 0xff, sizeof(bitmap_40000000));
+	memset(bitmap_c0000000, 0xff, sizeof(bitmap_c0000000));
+	memset(bitmap_c0000000_read, 0xff, sizeof(bitmap_c0000000_read));
+
+	deny_msr(bitmap_00000000_write, MSR_IA32_POWER_CTL);
+	deny_msr(bitmap_c0000000_read, MSR_SYSCALL_MASK);
+	deny_msr(bitmap_c0000000_read, MSR_GS_BASE);
+}
+
+struct kvm_msr_filter filter_deny = {
+	.flags = KVM_MSR_FILTER_DEFAULT_DENY,
+	.ranges = {
+		{
+			.flags = KVM_MSR_FILTER_READ,
+			.base = 0x00000000,
+			.nmsrs = KVM_MSR_FILTER_MAX_BITMAP_SIZE * BITS_PER_BYTE,
+			.bitmap = bitmap_00000000,
+		}, {
+			.flags = KVM_MSR_FILTER_WRITE,
+			.base = 0x00000000,
+			.nmsrs = KVM_MSR_FILTER_MAX_BITMAP_SIZE * BITS_PER_BYTE,
+			.bitmap = bitmap_00000000_write,
+		}, {
+			.flags = KVM_MSR_FILTER_READ | KVM_MSR_FILTER_WRITE,
+			.base = 0x40000000,
+			.nmsrs = KVM_MSR_FILTER_MAX_BITMAP_SIZE * BITS_PER_BYTE,
+			.bitmap = bitmap_40000000,
+		}, {
+			.flags = KVM_MSR_FILTER_READ,
+			.base = 0xc0000000,
+			.nmsrs = KVM_MSR_FILTER_MAX_BITMAP_SIZE * BITS_PER_BYTE,
+			.bitmap = bitmap_c0000000_read,
+		}, {
+			.flags = KVM_MSR_FILTER_WRITE,
+			.base = 0xc0000000,
+			.nmsrs = KVM_MSR_FILTER_MAX_BITMAP_SIZE * BITS_PER_BYTE,
+			.bitmap = bitmap_c0000000,
+		}, {
+			.flags = KVM_MSR_FILTER_WRITE | KVM_MSR_FILTER_READ,
+			.base = 0xdeadbeef,
+			.nmsrs = 1,
+			.bitmap = bitmap_deadbeef,
+		},
+	},
+};
+
+struct kvm_msr_filter no_filter_deny = {
+	.flags = KVM_MSR_FILTER_DEFAULT_ALLOW,
+};
+
+/*
+ * Note: Force test_rdmsr() to not be inlined to prevent the labels,
+ * rdmsr_start and rdmsr_end, from being defined multiple times.
+ */
+static noinline uint64_t test_rdmsr(uint32_t msr)
+{
+	uint32_t a, d;
+
+	guest_exception_count = 0;
+
+	__asm__ __volatile__("rdmsr_start: rdmsr; rdmsr_end:" :
+			"=a"(a), "=d"(d) : "c"(msr) : "memory");
+
+	return a | ((uint64_t) d << 32);
+}
+
+/*
+ * Note: Force test_wrmsr() to not be inlined to prevent the labels,
+ * wrmsr_start and wrmsr_end, from being defined multiple times.
+ */
+static noinline void test_wrmsr(uint32_t msr, uint64_t value)
+{
+	uint32_t a = value;
+	uint32_t d = value >> 32;
+
+	guest_exception_count = 0;
+
+	__asm__ __volatile__("wrmsr_start: wrmsr; wrmsr_end:" ::
+			"a"(a), "d"(d), "c"(msr) : "memory");
+}
+
+extern char rdmsr_start, rdmsr_end;
+extern char wrmsr_start, wrmsr_end;
+
+/*
+ * Note: Force test_em_rdmsr() to not be inlined to prevent the labels,
+ * rdmsr_start and rdmsr_end, from being defined multiple times.
+ */
+static noinline uint64_t test_em_rdmsr(uint32_t msr)
+{
+	uint32_t a, d;
+
+	guest_exception_count = 0;
+
+	__asm__ __volatile__(KVM_FEP "em_rdmsr_start: rdmsr; em_rdmsr_end:" :
+			"=a"(a), "=d"(d) : "c"(msr) : "memory");
+
+	return a | ((uint64_t) d << 32);
+}
+
+/*
+ * Note: Force test_em_wrmsr() to not be inlined to prevent the labels,
+ * wrmsr_start and wrmsr_end, from being defined multiple times.
+ */
+static noinline void test_em_wrmsr(uint32_t msr, uint64_t value)
+{
+	uint32_t a = value;
+	uint32_t d = value >> 32;
+
+	guest_exception_count = 0;
+
+	__asm__ __volatile__(KVM_FEP "em_wrmsr_start: wrmsr; em_wrmsr_end:" ::
+			"a"(a), "d"(d), "c"(msr) : "memory");
+}
+
+extern char em_rdmsr_start, em_rdmsr_end;
+extern char em_wrmsr_start, em_wrmsr_end;
+
+static void guest_code_filter_allow(void)
+{
+	uint64_t data;
+
+	/*
+	 * Test userspace intercepting rdmsr / wrmsr for MSR_IA32_XSS.
+	 *
+	 * A GP is thrown if anything other than 0 is written to
+	 * MSR_IA32_XSS.
+	 */
+	data = test_rdmsr(MSR_IA32_XSS);
+	GUEST_ASSERT(data == 0);
+	GUEST_ASSERT(guest_exception_count == 0);
+
+	test_wrmsr(MSR_IA32_XSS, 0);
+	GUEST_ASSERT(guest_exception_count == 0);
+
+	test_wrmsr(MSR_IA32_XSS, 1);
+	GUEST_ASSERT(guest_exception_count == 1);
+
+	/*
+	 * Test userspace intercepting rdmsr / wrmsr for MSR_IA32_FLUSH_CMD.
+	 *
+	 * A GP is thrown if MSR_IA32_FLUSH_CMD is read
+	 * from or if a value other than 1 is written to it.
+	 */
+	test_rdmsr(MSR_IA32_FLUSH_CMD);
+	GUEST_ASSERT(guest_exception_count == 1);
+
+	test_wrmsr(MSR_IA32_FLUSH_CMD, 0);
+	GUEST_ASSERT(guest_exception_count == 1);
+
+	test_wrmsr(MSR_IA32_FLUSH_CMD, 1);
+	GUEST_ASSERT(guest_exception_count == 0);
+
+	/*
+	 * Test userspace intercepting rdmsr / wrmsr for MSR_NON_EXISTENT.
+	 *
+	 * Test that a fabricated MSR can pass through the kernel
+	 * and be handled in userspace.
+	 */
+	test_wrmsr(MSR_NON_EXISTENT, 2);
+	GUEST_ASSERT(guest_exception_count == 0);
+
+	data = test_rdmsr(MSR_NON_EXISTENT);
+	GUEST_ASSERT(data == 2);
+	GUEST_ASSERT(guest_exception_count == 0);
+
+	if (is_forced_emulation_enabled) {
+		/* Let userspace know we aren't done. */
+		GUEST_SYNC(0);
+
+		/*
+		 * Now run the same tests with the instruction emulator.
+		 */
+		data = test_em_rdmsr(MSR_IA32_XSS);
+		GUEST_ASSERT(data == 0);
+		GUEST_ASSERT(guest_exception_count == 0);
+		test_em_wrmsr(MSR_IA32_XSS, 0);
+		GUEST_ASSERT(guest_exception_count == 0);
+		test_em_wrmsr(MSR_IA32_XSS, 1);
+		GUEST_ASSERT(guest_exception_count == 1);
+
+		test_em_rdmsr(MSR_IA32_FLUSH_CMD);
+		GUEST_ASSERT(guest_exception_count == 1);
+		test_em_wrmsr(MSR_IA32_FLUSH_CMD, 0);
+		GUEST_ASSERT(guest_exception_count == 1);
+		test_em_wrmsr(MSR_IA32_FLUSH_CMD, 1);
+		GUEST_ASSERT(guest_exception_count == 0);
+
+		test_em_wrmsr(MSR_NON_EXISTENT, 2);
+		GUEST_ASSERT(guest_exception_count == 0);
+		data = test_em_rdmsr(MSR_NON_EXISTENT);
+		GUEST_ASSERT(data == 2);
+		GUEST_ASSERT(guest_exception_count == 0);
+	}
+
+	GUEST_DONE();
+}
+
+static void guest_msr_calls(bool trapped)
+{
+	/* This goes into the in-kernel emulation */
+	wrmsr(MSR_SYSCALL_MASK, 0);
+
+	if (trapped) {
+		/* This goes into user space emulation */
+		GUEST_ASSERT(rdmsr(MSR_SYSCALL_MASK) == MSR_SYSCALL_MASK);
+		GUEST_ASSERT(rdmsr(MSR_GS_BASE) == MSR_GS_BASE);
+	} else {
+		GUEST_ASSERT(rdmsr(MSR_SYSCALL_MASK) != MSR_SYSCALL_MASK);
+		GUEST_ASSERT(rdmsr(MSR_GS_BASE) != MSR_GS_BASE);
+	}
+
+	/* If trapped == true, this goes into user space emulation */
+	wrmsr(MSR_IA32_POWER_CTL, 0x1234);
+
+	/* This goes into the in-kernel emulation */
+	rdmsr(MSR_IA32_POWER_CTL);
+
+	/* Invalid MSR, should always be handled by user space exit */
+	GUEST_ASSERT(rdmsr(0xdeadbeef) == 0xdeadbeef);
+	wrmsr(0xdeadbeef, 0x1234);
+}
+
+static void guest_code_filter_deny(void)
+{
+	guest_msr_calls(true);
+
+	/*
+	 * Disable msr filtering, so that the kernel
+	 * handles everything in the next round
+	 */
+	GUEST_SYNC(0);
+
+	guest_msr_calls(false);
+
+	GUEST_DONE();
+}
+
+static void guest_code_permission_bitmap(void)
+{
+	uint64_t data;
+
+	data = test_rdmsr(MSR_FS_BASE);
+	GUEST_ASSERT(data == MSR_FS_BASE);
+	data = test_rdmsr(MSR_GS_BASE);
+	GUEST_ASSERT(data != MSR_GS_BASE);
+
+	/* Let userspace know to switch the filter */
+	GUEST_SYNC(0);
+
+	data = test_rdmsr(MSR_FS_BASE);
+	GUEST_ASSERT(data != MSR_FS_BASE);
+	data = test_rdmsr(MSR_GS_BASE);
+	GUEST_ASSERT(data == MSR_GS_BASE);
+
+	/* Access the MSRs again to ensure KVM has disabled interception.*/
+	data = test_rdmsr(MSR_FS_BASE);
+	GUEST_ASSERT(data != MSR_FS_BASE);
+	data = test_rdmsr(MSR_GS_BASE);
+	GUEST_ASSERT(data != MSR_GS_BASE);
+
+	GUEST_DONE();
+}
+
+static void __guest_gp_handler(struct ex_regs *regs,
+			       char *r_start, char *r_end,
+			       char *w_start, char *w_end)
+{
+	if (regs->rip == (uintptr_t)r_start) {
+		regs->rip = (uintptr_t)r_end;
+		regs->rax = 0;
+		regs->rdx = 0;
+	} else if (regs->rip == (uintptr_t)w_start) {
+		regs->rip = (uintptr_t)w_end;
+	} else {
+		GUEST_ASSERT(!"RIP is at an unknown location!");
+	}
+
+	++guest_exception_count;
+}
+
+static void guest_gp_handler(struct ex_regs *regs)
+{
+	__guest_gp_handler(regs, &rdmsr_start, &rdmsr_end,
+			   &wrmsr_start, &wrmsr_end);
+}
+
+static void guest_fep_gp_handler(struct ex_regs *regs)
+{
+	__guest_gp_handler(regs, &em_rdmsr_start, &em_rdmsr_end,
+			   &em_wrmsr_start, &em_wrmsr_end);
+}
+
+static void check_for_guest_assert(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	if (vcpu->run->exit_reason == KVM_EXIT_IO &&
+	    get_ucall(vcpu, &uc) == UCALL_ABORT) {
+		REPORT_GUEST_ASSERT(uc);
+	}
+}
+
+static void process_rdmsr(struct kvm_vcpu *vcpu, uint32_t msr_index)
+{
+	struct kvm_run *run = vcpu->run;
+
+	check_for_guest_assert(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_X86_RDMSR);
+	TEST_ASSERT(run->msr.index == msr_index,
+			"Unexpected msr (0x%04x), expected 0x%04x",
+			run->msr.index, msr_index);
+
+	switch (run->msr.index) {
+	case MSR_IA32_XSS:
+		run->msr.data = 0;
+		break;
+	case MSR_IA32_FLUSH_CMD:
+		run->msr.error = 1;
+		break;
+	case MSR_NON_EXISTENT:
+		run->msr.data = msr_non_existent_data;
+		break;
+	case MSR_FS_BASE:
+		run->msr.data = MSR_FS_BASE;
+		break;
+	case MSR_GS_BASE:
+		run->msr.data = MSR_GS_BASE;
+		break;
+	default:
+		TEST_ASSERT(false, "Unexpected MSR: 0x%04x", run->msr.index);
+	}
+}
+
+static void process_wrmsr(struct kvm_vcpu *vcpu, uint32_t msr_index)
+{
+	struct kvm_run *run = vcpu->run;
+
+	check_for_guest_assert(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_X86_WRMSR);
+	TEST_ASSERT(run->msr.index == msr_index,
+			"Unexpected msr (0x%04x), expected 0x%04x",
+			run->msr.index, msr_index);
+
+	switch (run->msr.index) {
+	case MSR_IA32_XSS:
+		if (run->msr.data != 0)
+			run->msr.error = 1;
+		break;
+	case MSR_IA32_FLUSH_CMD:
+		if (run->msr.data != 1)
+			run->msr.error = 1;
+		break;
+	case MSR_NON_EXISTENT:
+		msr_non_existent_data = run->msr.data;
+		break;
+	default:
+		TEST_ASSERT(false, "Unexpected MSR: 0x%04x", run->msr.index);
+	}
+}
+
+static void process_ucall_done(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	check_for_guest_assert(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	TEST_ASSERT(get_ucall(vcpu, &uc) == UCALL_DONE,
+		    "Unexpected ucall command: %lu, expected UCALL_DONE (%d)",
+		    uc.cmd, UCALL_DONE);
+}
+
+static uint64_t process_ucall(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc = {};
+
+	check_for_guest_assert(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_SYNC:
+		break;
+	case UCALL_ABORT:
+		check_for_guest_assert(vcpu);
+		break;
+	case UCALL_DONE:
+		process_ucall_done(vcpu);
+		break;
+	default:
+		TEST_ASSERT(false, "Unexpected ucall");
+	}
+
+	return uc.cmd;
+}
+
+static void run_guest_then_process_rdmsr(struct kvm_vcpu *vcpu,
+					 uint32_t msr_index)
+{
+	vcpu_run(vcpu);
+	process_rdmsr(vcpu, msr_index);
+}
+
+static void run_guest_then_process_wrmsr(struct kvm_vcpu *vcpu,
+					 uint32_t msr_index)
+{
+	vcpu_run(vcpu);
+	process_wrmsr(vcpu, msr_index);
+}
+
+static uint64_t run_guest_then_process_ucall(struct kvm_vcpu *vcpu)
+{
+	vcpu_run(vcpu);
+	return process_ucall(vcpu);
+}
+
+static void run_guest_then_process_ucall_done(struct kvm_vcpu *vcpu)
+{
+	vcpu_run(vcpu);
+	process_ucall_done(vcpu);
+}
+
+KVM_ONE_VCPU_TEST_SUITE(user_msr);
+
+KVM_ONE_VCPU_TEST(user_msr, msr_filter_allow, guest_code_filter_allow)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	uint64_t cmd;
+	int rc;
+
+	rc = kvm_check_cap(KVM_CAP_X86_USER_SPACE_MSR);
+	TEST_ASSERT(rc, "KVM_CAP_X86_USER_SPACE_MSR is available");
+	vm_enable_cap(vm, KVM_CAP_X86_USER_SPACE_MSR, KVM_MSR_EXIT_REASON_FILTER);
+
+	rc = kvm_check_cap(KVM_CAP_X86_MSR_FILTER);
+	TEST_ASSERT(rc, "KVM_CAP_X86_MSR_FILTER is available");
+
+	vm_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter_allow);
+
+	vm_install_exception_handler(vm, GP_VECTOR, guest_gp_handler);
+
+	/* Process guest code userspace exits. */
+	run_guest_then_process_rdmsr(vcpu, MSR_IA32_XSS);
+	run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
+	run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
+
+	run_guest_then_process_rdmsr(vcpu, MSR_IA32_FLUSH_CMD);
+	run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
+	run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
+
+	run_guest_then_process_wrmsr(vcpu, MSR_NON_EXISTENT);
+	run_guest_then_process_rdmsr(vcpu, MSR_NON_EXISTENT);
+
+	vcpu_run(vcpu);
+	cmd = process_ucall(vcpu);
+
+	if (is_forced_emulation_enabled) {
+		TEST_ASSERT_EQ(cmd, UCALL_SYNC);
+		vm_install_exception_handler(vm, GP_VECTOR, guest_fep_gp_handler);
+
+		/* Process emulated rdmsr and wrmsr instructions. */
+		run_guest_then_process_rdmsr(vcpu, MSR_IA32_XSS);
+		run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
+		run_guest_then_process_wrmsr(vcpu, MSR_IA32_XSS);
+
+		run_guest_then_process_rdmsr(vcpu, MSR_IA32_FLUSH_CMD);
+		run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
+		run_guest_then_process_wrmsr(vcpu, MSR_IA32_FLUSH_CMD);
+
+		run_guest_then_process_wrmsr(vcpu, MSR_NON_EXISTENT);
+		run_guest_then_process_rdmsr(vcpu, MSR_NON_EXISTENT);
+
+		/* Confirm the guest completed without issues. */
+		run_guest_then_process_ucall_done(vcpu);
+	} else {
+		TEST_ASSERT_EQ(cmd, UCALL_DONE);
+		printf("To run the instruction emulated tests set the module parameter 'kvm.force_emulation_prefix=1'\n");
+	}
+}
+
+static int handle_ucall(struct kvm_vcpu *vcpu)
+{
+	struct ucall uc;
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_SYNC:
+		vm_ioctl(vcpu->vm, KVM_X86_SET_MSR_FILTER, &no_filter_deny);
+		break;
+	case UCALL_DONE:
+		return 1;
+	default:
+		TEST_FAIL("Unknown ucall %lu", uc.cmd);
+	}
+
+	return 0;
+}
+
+static void handle_rdmsr(struct kvm_run *run)
+{
+	run->msr.data = run->msr.index;
+	msr_reads++;
+
+	if (run->msr.index == MSR_SYSCALL_MASK ||
+	    run->msr.index == MSR_GS_BASE) {
+		TEST_ASSERT(run->msr.reason == KVM_MSR_EXIT_REASON_FILTER,
+			    "MSR read trap w/o access fault");
+	}
+
+	if (run->msr.index == 0xdeadbeef) {
+		TEST_ASSERT(run->msr.reason == KVM_MSR_EXIT_REASON_UNKNOWN,
+			    "MSR deadbeef read trap w/o inval fault");
+	}
+}
+
+static void handle_wrmsr(struct kvm_run *run)
+{
+	/* ignore */
+	msr_writes++;
+
+	if (run->msr.index == MSR_IA32_POWER_CTL) {
+		TEST_ASSERT(run->msr.data == 0x1234,
+			    "MSR data for MSR_IA32_POWER_CTL incorrect");
+		TEST_ASSERT(run->msr.reason == KVM_MSR_EXIT_REASON_FILTER,
+			    "MSR_IA32_POWER_CTL trap w/o access fault");
+	}
+
+	if (run->msr.index == 0xdeadbeef) {
+		TEST_ASSERT(run->msr.data == 0x1234,
+			    "MSR data for deadbeef incorrect");
+		TEST_ASSERT(run->msr.reason == KVM_MSR_EXIT_REASON_UNKNOWN,
+			    "deadbeef trap w/o inval fault");
+	}
+}
+
+KVM_ONE_VCPU_TEST(user_msr, msr_filter_deny, guest_code_filter_deny)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	struct kvm_run *run = vcpu->run;
+	int rc;
+
+	rc = kvm_check_cap(KVM_CAP_X86_USER_SPACE_MSR);
+	TEST_ASSERT(rc, "KVM_CAP_X86_USER_SPACE_MSR is available");
+	vm_enable_cap(vm, KVM_CAP_X86_USER_SPACE_MSR, KVM_MSR_EXIT_REASON_INVAL |
+						      KVM_MSR_EXIT_REASON_UNKNOWN |
+						      KVM_MSR_EXIT_REASON_FILTER);
+
+	rc = kvm_check_cap(KVM_CAP_X86_MSR_FILTER);
+	TEST_ASSERT(rc, "KVM_CAP_X86_MSR_FILTER is available");
+
+	prepare_bitmaps();
+	vm_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter_deny);
+
+	while (1) {
+		vcpu_run(vcpu);
+
+		switch (run->exit_reason) {
+		case KVM_EXIT_X86_RDMSR:
+			handle_rdmsr(run);
+			break;
+		case KVM_EXIT_X86_WRMSR:
+			handle_wrmsr(run);
+			break;
+		case KVM_EXIT_IO:
+			if (handle_ucall(vcpu))
+				goto done;
+			break;
+		}
+
+	}
+
+done:
+	TEST_ASSERT(msr_reads == 4, "Handled 4 rdmsr in user space");
+	TEST_ASSERT(msr_writes == 3, "Handled 3 wrmsr in user space");
+}
+
+KVM_ONE_VCPU_TEST(user_msr, msr_permission_bitmap, guest_code_permission_bitmap)
+{
+	struct kvm_vm *vm = vcpu->vm;
+	int rc;
+
+	rc = kvm_check_cap(KVM_CAP_X86_USER_SPACE_MSR);
+	TEST_ASSERT(rc, "KVM_CAP_X86_USER_SPACE_MSR is available");
+	vm_enable_cap(vm, KVM_CAP_X86_USER_SPACE_MSR, KVM_MSR_EXIT_REASON_FILTER);
+
+	rc = kvm_check_cap(KVM_CAP_X86_MSR_FILTER);
+	TEST_ASSERT(rc, "KVM_CAP_X86_MSR_FILTER is available");
+
+	vm_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter_fs);
+	run_guest_then_process_rdmsr(vcpu, MSR_FS_BASE);
+	TEST_ASSERT(run_guest_then_process_ucall(vcpu) == UCALL_SYNC,
+		    "Expected ucall state to be UCALL_SYNC.");
+	vm_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter_gs);
+	run_guest_then_process_rdmsr(vcpu, MSR_GS_BASE);
+
+	vm_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter_allow);
+	run_guest_then_process_ucall_done(vcpu);
+}
+
+#define test_user_exit_msr_ioctl(vm, cmd, arg, flag, valid_mask)	\
+({									\
+	int r = __vm_ioctl(vm, cmd, arg);				\
+									\
+	if (flag & valid_mask)						\
+		TEST_ASSERT(!r, __KVM_IOCTL_ERROR(#cmd, r));		\
+	else								\
+		TEST_ASSERT(r == -1 && errno == EINVAL,			\
+			    "Wanted EINVAL for %s with flag = 0x%llx, got  rc: %i errno: %i (%s)", \
+			    #cmd, flag, r, errno,  strerror(errno));	\
+})
+
+static void run_user_space_msr_flag_test(struct kvm_vm *vm)
+{
+	struct kvm_enable_cap cap = { .cap = KVM_CAP_X86_USER_SPACE_MSR };
+	int nflags = sizeof(cap.args[0]) * BITS_PER_BYTE;
+	int rc;
+	int i;
+
+	rc = kvm_check_cap(KVM_CAP_X86_USER_SPACE_MSR);
+	TEST_ASSERT(rc, "KVM_CAP_X86_USER_SPACE_MSR is available");
+
+	for (i = 0; i < nflags; i++) {
+		cap.args[0] = BIT_ULL(i);
+		test_user_exit_msr_ioctl(vm, KVM_ENABLE_CAP, &cap,
+			   BIT_ULL(i), KVM_MSR_EXIT_REASON_VALID_MASK);
+	}
+}
+
+static void run_msr_filter_flag_test(struct kvm_vm *vm)
+{
+	u64 deny_bits = 0;
+	struct kvm_msr_filter filter = {
+		.flags = KVM_MSR_FILTER_DEFAULT_ALLOW,
+		.ranges = {
+			{
+				.flags = KVM_MSR_FILTER_READ,
+				.nmsrs = 1,
+				.base = 0,
+				.bitmap = (uint8_t *)&deny_bits,
+			},
+		},
+	};
+	int nflags;
+	int rc;
+	int i;
+
+	rc = kvm_check_cap(KVM_CAP_X86_MSR_FILTER);
+	TEST_ASSERT(rc, "KVM_CAP_X86_MSR_FILTER is available");
+
+	nflags = sizeof(filter.flags) * BITS_PER_BYTE;
+	for (i = 0; i < nflags; i++) {
+		filter.flags = BIT_ULL(i);
+		test_user_exit_msr_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter,
+			   BIT_ULL(i), KVM_MSR_FILTER_VALID_MASK);
+	}
+
+	filter.flags = KVM_MSR_FILTER_DEFAULT_ALLOW;
+	nflags = sizeof(filter.ranges[0].flags) * BITS_PER_BYTE;
+	for (i = 0; i < nflags; i++) {
+		filter.ranges[0].flags = BIT_ULL(i);
+		test_user_exit_msr_ioctl(vm, KVM_X86_SET_MSR_FILTER, &filter,
+			   BIT_ULL(i), KVM_MSR_FILTER_RANGE_VALID_MASK);
+	}
+}
+
+/* Test that attempts to write to the unused bits in a flag fails. */
+KVM_ONE_VCPU_TEST(user_msr, user_exit_msr_flags, NULL)
+{
+	struct kvm_vm *vm = vcpu->vm;
+
+	/* Test flags for KVM_CAP_X86_USER_SPACE_MSR. */
+	run_user_space_msr_flag_test(vm);
+
+	/* Test flags and range flags for KVM_X86_SET_MSR_FILTER. */
+	run_msr_filter_flag_test(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_apic_access_test.c b/tools/testing/selftests/kvm/x86/vmx_apic_access_test.c
new file mode 100644
index 000000000000..a81a24761aac
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_apic_access_test.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vmx_apic_access_test
+ *
+ * Copyright (C) 2020, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * The first subtest simply checks to see that an L2 guest can be
+ * launched with a valid APIC-access address that is backed by a
+ * page of L1 physical memory.
+ *
+ * The second subtest sets the APIC-access address to a (valid) L1
+ * physical address that is not backed by memory. KVM can't handle
+ * this situation, so resuming L2 should result in a KVM exit for
+ * internal error (emulation). This is not an architectural
+ * requirement. It is just a shortcoming of KVM. The internal error
+ * is unfortunate, but it's better than what used to happen!
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kselftest.h"
+
+static void l2_guest_code(void)
+{
+	/* Exit to L1 */
+	__asm__ __volatile__("vmcall");
+}
+
+static void l1_guest_code(struct vmx_pages *vmx_pages, unsigned long high_gpa)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	uint32_t control;
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	/* Prepare the VMCS for L2 execution. */
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+	control = vmreadz(CPU_BASED_VM_EXEC_CONTROL);
+	control |= CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
+	vmwrite(CPU_BASED_VM_EXEC_CONTROL, control);
+	control = vmreadz(SECONDARY_VM_EXEC_CONTROL);
+	control |= SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES;
+	vmwrite(SECONDARY_VM_EXEC_CONTROL, control);
+	vmwrite(APIC_ACCESS_ADDR, vmx_pages->apic_access_gpa);
+
+	/* Try to launch L2 with the memory-backed APIC-access address. */
+	GUEST_SYNC(vmreadz(APIC_ACCESS_ADDR));
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	vmwrite(APIC_ACCESS_ADDR, high_gpa);
+
+	/* Try to resume L2 with the unbacked APIC-access address. */
+	GUEST_SYNC(vmreadz(APIC_ACCESS_ADDR));
+	GUEST_ASSERT(!vmresume());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned long apic_access_addr = ~0ul;
+	vm_vaddr_t vmx_pages_gva;
+	unsigned long high_gpa;
+	struct vmx_pages *vmx;
+	bool done = false;
+
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	high_gpa = (vm->max_gfn - 1) << vm->page_shift;
+
+	vmx = vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	prepare_virtualize_apic_accesses(vmx, vm);
+	vcpu_args_set(vcpu, 2, vmx_pages_gva, high_gpa);
+
+	while (!done) {
+		volatile struct kvm_run *run = vcpu->run;
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		if (apic_access_addr == high_gpa) {
+			TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_INTERNAL_ERROR);
+			TEST_ASSERT(run->internal.suberror ==
+				    KVM_INTERNAL_ERROR_EMULATION,
+				    "Got internal suberror other than KVM_INTERNAL_ERROR_EMULATION: %u",
+				    run->internal.suberror);
+			break;
+		}
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			apic_access_addr = uc.args[1];
+			break;
+		case UCALL_DONE:
+			done = true;
+			break;
+		default:
+			TEST_ASSERT(false, "Unknown ucall %lu", uc.cmd);
+		}
+	}
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_dirty_log_test.c b/tools/testing/selftests/kvm/x86/vmx_dirty_log_test.c
new file mode 100644
index 000000000000..98cb6bdab3e6
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_dirty_log_test.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KVM dirty page logging test
+ *
+ * Copyright (C) 2018, Red Hat, Inc.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+/* The memory slot index to track dirty pages */
+#define TEST_MEM_SLOT_INDEX		1
+#define TEST_MEM_PAGES			3
+
+/* L1 guest test virtual memory offset */
+#define GUEST_TEST_MEM			0xc0000000
+
+/* L2 guest test virtual memory offset */
+#define NESTED_TEST_MEM1		0xc0001000
+#define NESTED_TEST_MEM2		0xc0002000
+
+static void l2_guest_code(u64 *a, u64 *b)
+{
+	READ_ONCE(*a);
+	WRITE_ONCE(*a, 1);
+	GUEST_SYNC(true);
+	GUEST_SYNC(false);
+
+	WRITE_ONCE(*b, 1);
+	GUEST_SYNC(true);
+	WRITE_ONCE(*b, 1);
+	GUEST_SYNC(true);
+	GUEST_SYNC(false);
+
+	/* Exit to L1 and never come back.  */
+	vmcall();
+}
+
+static void l2_guest_code_ept_enabled(void)
+{
+	l2_guest_code((u64 *)NESTED_TEST_MEM1, (u64 *)NESTED_TEST_MEM2);
+}
+
+static void l2_guest_code_ept_disabled(void)
+{
+	/* Access the same L1 GPAs as l2_guest_code_ept_enabled() */
+	l2_guest_code((u64 *)GUEST_TEST_MEM, (u64 *)GUEST_TEST_MEM);
+}
+
+void l1_guest_code(struct vmx_pages *vmx)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	void *l2_rip;
+
+	GUEST_ASSERT(vmx->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx));
+	GUEST_ASSERT(load_vmcs(vmx));
+
+	if (vmx->eptp_gpa)
+		l2_rip = l2_guest_code_ept_enabled;
+	else
+		l2_rip = l2_guest_code_ept_disabled;
+
+	prepare_vmcs(vmx, l2_rip, &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	GUEST_SYNC(false);
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_SYNC(false);
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	GUEST_DONE();
+}
+
+static void test_vmx_dirty_log(bool enable_ept)
+{
+	vm_vaddr_t vmx_pages_gva = 0;
+	struct vmx_pages *vmx;
+	unsigned long *bmap;
+	uint64_t *host_test_mem;
+
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	struct ucall uc;
+	bool done = false;
+
+	pr_info("Nested EPT: %s\n", enable_ept ? "enabled" : "disabled");
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+	vmx = vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	vcpu_args_set(vcpu, 1, vmx_pages_gva);
+
+	/* Add an extra memory slot for testing dirty logging */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    GUEST_TEST_MEM,
+				    TEST_MEM_SLOT_INDEX,
+				    TEST_MEM_PAGES,
+				    KVM_MEM_LOG_DIRTY_PAGES);
+
+	/*
+	 * Add an identity map for GVA range [0xc0000000, 0xc0002000).  This
+	 * affects both L1 and L2.  However...
+	 */
+	virt_map(vm, GUEST_TEST_MEM, GUEST_TEST_MEM, TEST_MEM_PAGES);
+
+	/*
+	 * ... pages in the L2 GPA range [0xc0001000, 0xc0003000) will map to
+	 * 0xc0000000.
+	 *
+	 * Note that prepare_eptp should be called only L1's GPA map is done,
+	 * meaning after the last call to virt_map.
+	 *
+	 * When EPT is disabled, the L2 guest code will still access the same L1
+	 * GPAs as the EPT enabled case.
+	 */
+	if (enable_ept) {
+		prepare_eptp(vmx, vm);
+		nested_map_memslot(vmx, vm, 0);
+		nested_map(vmx, vm, NESTED_TEST_MEM1, GUEST_TEST_MEM, PAGE_SIZE);
+		nested_map(vmx, vm, NESTED_TEST_MEM2, GUEST_TEST_MEM, PAGE_SIZE);
+	}
+
+	bmap = bitmap_zalloc(TEST_MEM_PAGES);
+	host_test_mem = addr_gpa2hva(vm, GUEST_TEST_MEM);
+
+	while (!done) {
+		memset(host_test_mem, 0xaa, TEST_MEM_PAGES * PAGE_SIZE);
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			/*
+			 * The nested guest wrote at offset 0x1000 in the memslot, but the
+			 * dirty bitmap must be filled in according to L1 GPA, not L2.
+			 */
+			kvm_vm_get_dirty_log(vm, TEST_MEM_SLOT_INDEX, bmap);
+			if (uc.args[1]) {
+				TEST_ASSERT(test_bit(0, bmap), "Page 0 incorrectly reported clean");
+				TEST_ASSERT(host_test_mem[0] == 1, "Page 0 not written by guest");
+			} else {
+				TEST_ASSERT(!test_bit(0, bmap), "Page 0 incorrectly reported dirty");
+				TEST_ASSERT(host_test_mem[0] == 0xaaaaaaaaaaaaaaaaULL, "Page 0 written by guest");
+			}
+
+			TEST_ASSERT(!test_bit(1, bmap), "Page 1 incorrectly reported dirty");
+			TEST_ASSERT(host_test_mem[PAGE_SIZE / 8] == 0xaaaaaaaaaaaaaaaaULL, "Page 1 written by guest");
+			TEST_ASSERT(!test_bit(2, bmap), "Page 2 incorrectly reported dirty");
+			TEST_ASSERT(host_test_mem[PAGE_SIZE*2 / 8] == 0xaaaaaaaaaaaaaaaaULL, "Page 2 written by guest");
+			break;
+		case UCALL_DONE:
+			done = true;
+			break;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	test_vmx_dirty_log(/*enable_ept=*/false);
+
+	if (kvm_cpu_has_ept())
+		test_vmx_dirty_log(/*enable_ept=*/true);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_exception_with_invalid_guest_state.c b/tools/testing/selftests/kvm/x86/vmx_exception_with_invalid_guest_state.c
new file mode 100644
index 000000000000..2cae86d9d5e2
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_exception_with_invalid_guest_state.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#include <signal.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+
+#include "kselftest.h"
+
+static void guest_ud_handler(struct ex_regs *regs)
+{
+	/* Loop on the ud2 until guest state is made invalid. */
+}
+
+static void guest_code(void)
+{
+	asm volatile("ud2");
+}
+
+static void __run_vcpu_with_invalid_state(struct kvm_vcpu *vcpu)
+{
+	struct kvm_run *run = vcpu->run;
+
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_INTERNAL_ERROR);
+	TEST_ASSERT(run->emulation_failure.suberror == KVM_INTERNAL_ERROR_EMULATION,
+		    "Expected emulation failure, got %d",
+		    run->emulation_failure.suberror);
+}
+
+static void run_vcpu_with_invalid_state(struct kvm_vcpu *vcpu)
+{
+	/*
+	 * Always run twice to verify KVM handles the case where _KVM_ queues
+	 * an exception with invalid state and then exits to userspace, i.e.
+	 * that KVM doesn't explode if userspace ignores the initial error.
+	 */
+	__run_vcpu_with_invalid_state(vcpu);
+	__run_vcpu_with_invalid_state(vcpu);
+}
+
+static void set_timer(void)
+{
+	struct itimerval timer;
+
+	timer.it_value.tv_sec  = 0;
+	timer.it_value.tv_usec = 200;
+	timer.it_interval = timer.it_value;
+	TEST_ASSERT_EQ(setitimer(ITIMER_REAL, &timer, NULL), 0);
+}
+
+static void set_or_clear_invalid_guest_state(struct kvm_vcpu *vcpu, bool set)
+{
+	static struct kvm_sregs sregs;
+
+	if (!sregs.cr0)
+		vcpu_sregs_get(vcpu, &sregs);
+	sregs.tr.unusable = !!set;
+	vcpu_sregs_set(vcpu, &sregs);
+}
+
+static void set_invalid_guest_state(struct kvm_vcpu *vcpu)
+{
+	set_or_clear_invalid_guest_state(vcpu, true);
+}
+
+static void clear_invalid_guest_state(struct kvm_vcpu *vcpu)
+{
+	set_or_clear_invalid_guest_state(vcpu, false);
+}
+
+static struct kvm_vcpu *get_set_sigalrm_vcpu(struct kvm_vcpu *__vcpu)
+{
+	static struct kvm_vcpu *vcpu = NULL;
+
+	if (__vcpu)
+		vcpu = __vcpu;
+	return vcpu;
+}
+
+static void sigalrm_handler(int sig)
+{
+	struct kvm_vcpu *vcpu = get_set_sigalrm_vcpu(NULL);
+	struct kvm_vcpu_events events;
+
+	TEST_ASSERT(sig == SIGALRM, "Unexpected signal = %d", sig);
+
+	vcpu_events_get(vcpu, &events);
+
+	/*
+	 * If an exception is pending, attempt KVM_RUN with invalid guest,
+	 * otherwise rearm the timer and keep doing so until the timer fires
+	 * between KVM queueing an exception and re-entering the guest.
+	 */
+	if (events.exception.pending) {
+		set_invalid_guest_state(vcpu);
+		run_vcpu_with_invalid_state(vcpu);
+	} else {
+		set_timer();
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(host_cpu_is_intel);
+	TEST_REQUIRE(!kvm_is_unrestricted_guest_enabled());
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	get_set_sigalrm_vcpu(vcpu);
+
+	vm_install_exception_handler(vm, UD_VECTOR, guest_ud_handler);
+
+	/*
+	 * Stuff invalid guest state for L2 by making TR unusuable.  The next
+	 * KVM_RUN should induce a TRIPLE_FAULT in L2 as KVM doesn't support
+	 * emulating invalid guest state for L2.
+	 */
+	set_invalid_guest_state(vcpu);
+	run_vcpu_with_invalid_state(vcpu);
+
+	/*
+	 * Verify KVM also handles the case where userspace gains control while
+	 * an exception is pending and stuffs invalid state.  Run with valid
+	 * guest state and a timer firing every 200us, and attempt to enter the
+	 * guest with invalid state when the handler interrupts KVM with an
+	 * exception pending.
+	 */
+	clear_invalid_guest_state(vcpu);
+	TEST_ASSERT(signal(SIGALRM, sigalrm_handler) != SIG_ERR,
+		    "Failed to register SIGALRM handler, errno = %d (%s)",
+		    errno, strerror(errno));
+
+	set_timer();
+	run_vcpu_with_invalid_state(vcpu);
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c b/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c
new file mode 100644
index 000000000000..a100ee5f0009
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_invalid_nested_guest_state.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "kselftest.h"
+
+#define ARBITRARY_IO_PORT 0x2000
+
+static struct kvm_vm *vm;
+
+static void l2_guest_code(void)
+{
+	/*
+	 * Generate an exit to L0 userspace, i.e. main(), via I/O to an
+	 * arbitrary port.
+	 */
+	asm volatile("inb %%dx, %%al"
+		     : : [port] "d" (ARBITRARY_IO_PORT) : "rax");
+}
+
+static void l1_guest_code(struct vmx_pages *vmx_pages)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	/* Prepare the VMCS for L2 execution. */
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/*
+	 * L2 must be run without unrestricted guest, verify that the selftests
+	 * library hasn't enabled it.  Because KVM selftests jump directly to
+	 * 64-bit mode, unrestricted guest support isn't required.
+	 */
+	GUEST_ASSERT(!(vmreadz(CPU_BASED_VM_EXEC_CONTROL) & CPU_BASED_ACTIVATE_SECONDARY_CONTROLS) ||
+		     !(vmreadz(SECONDARY_VM_EXEC_CONTROL) & SECONDARY_EXEC_UNRESTRICTED_GUEST));
+
+	GUEST_ASSERT(!vmlaunch());
+
+	/* L2 should triple fault after main() stuffs invalid guest state. */
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_TRIPLE_FAULT);
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t vmx_pages_gva;
+	struct kvm_sregs sregs;
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	vm = vm_create_with_one_vcpu(&vcpu, l1_guest_code);
+
+	/* Allocate VMX pages and shared descriptors (vmx_pages). */
+	vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	vcpu_args_set(vcpu, 1, vmx_pages_gva);
+
+	vcpu_run(vcpu);
+
+	run = vcpu->run;
+
+	/*
+	 * The first exit to L0 userspace should be an I/O access from L2.
+	 * Running L1 should launch L2 without triggering an exit to userspace.
+	 */
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	TEST_ASSERT(run->io.port == ARBITRARY_IO_PORT,
+		    "Expected IN from port %d from L2, got port %d",
+		    ARBITRARY_IO_PORT, run->io.port);
+
+	/*
+	 * Stuff invalid guest state for L2 by making TR unusuable.  The next
+	 * KVM_RUN should induce a TRIPLE_FAULT in L2 as KVM doesn't support
+	 * emulating invalid guest state for L2.
+	 */
+	memset(&sregs, 0, sizeof(sregs));
+	vcpu_sregs_get(vcpu, &sregs);
+	sregs.tr.unusable = 1;
+	vcpu_sregs_set(vcpu, &sregs);
+
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_DONE:
+		break;
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+	default:
+		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+	}
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_msrs_test.c b/tools/testing/selftests/kvm/x86/vmx_msrs_test.c
new file mode 100644
index 000000000000..90720b6205f4
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_msrs_test.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * VMX control MSR test
+ *
+ * Copyright (C) 2022 Google LLC.
+ *
+ * Tests for KVM ownership of bits in the VMX entry/exit control MSRs. Checks
+ * that KVM will set owned bits where appropriate, and will not if
+ * KVM_X86_QUIRK_TWEAK_VMX_CTRL_MSRS is disabled.
+ */
+#include <linux/bitmap.h>
+#include "kvm_util.h"
+#include "vmx.h"
+
+static void vmx_fixed1_msr_test(struct kvm_vcpu *vcpu, uint32_t msr_index,
+				  uint64_t mask)
+{
+	uint64_t val = vcpu_get_msr(vcpu, msr_index);
+	uint64_t bit;
+
+	mask &= val;
+
+	for_each_set_bit(bit, &mask, 64) {
+		vcpu_set_msr(vcpu, msr_index, val & ~BIT_ULL(bit));
+		vcpu_set_msr(vcpu, msr_index, val);
+	}
+}
+
+static void vmx_fixed0_msr_test(struct kvm_vcpu *vcpu, uint32_t msr_index,
+				uint64_t mask)
+{
+	uint64_t val = vcpu_get_msr(vcpu, msr_index);
+	uint64_t bit;
+
+	mask = ~mask | val;
+
+	for_each_clear_bit(bit, &mask, 64) {
+		vcpu_set_msr(vcpu, msr_index, val | BIT_ULL(bit));
+		vcpu_set_msr(vcpu, msr_index, val);
+	}
+}
+
+static void vmx_fixed0and1_msr_test(struct kvm_vcpu *vcpu, uint32_t msr_index)
+{
+	vmx_fixed0_msr_test(vcpu, msr_index, GENMASK_ULL(31, 0));
+	vmx_fixed1_msr_test(vcpu, msr_index, GENMASK_ULL(63, 32));
+}
+
+static void vmx_save_restore_msrs_test(struct kvm_vcpu *vcpu)
+{
+	vcpu_set_msr(vcpu, MSR_IA32_VMX_VMCS_ENUM, 0);
+	vcpu_set_msr(vcpu, MSR_IA32_VMX_VMCS_ENUM, -1ull);
+
+	vmx_fixed1_msr_test(vcpu, MSR_IA32_VMX_BASIC,
+			    BIT_ULL(49) | BIT_ULL(54) | BIT_ULL(55));
+
+	vmx_fixed1_msr_test(vcpu, MSR_IA32_VMX_MISC,
+			    BIT_ULL(5) | GENMASK_ULL(8, 6) | BIT_ULL(14) |
+			    BIT_ULL(15) | BIT_ULL(28) | BIT_ULL(29) | BIT_ULL(30));
+
+	vmx_fixed0and1_msr_test(vcpu, MSR_IA32_VMX_PROCBASED_CTLS2);
+	vmx_fixed1_msr_test(vcpu, MSR_IA32_VMX_EPT_VPID_CAP, -1ull);
+	vmx_fixed0and1_msr_test(vcpu, MSR_IA32_VMX_TRUE_PINBASED_CTLS);
+	vmx_fixed0and1_msr_test(vcpu, MSR_IA32_VMX_TRUE_PROCBASED_CTLS);
+	vmx_fixed0and1_msr_test(vcpu, MSR_IA32_VMX_TRUE_EXIT_CTLS);
+	vmx_fixed0and1_msr_test(vcpu, MSR_IA32_VMX_TRUE_ENTRY_CTLS);
+	vmx_fixed1_msr_test(vcpu, MSR_IA32_VMX_VMFUNC, -1ull);
+}
+
+static void __ia32_feature_control_msr_test(struct kvm_vcpu *vcpu,
+					    uint64_t msr_bit,
+					    struct kvm_x86_cpu_feature feature)
+{
+	uint64_t val;
+
+	vcpu_clear_cpuid_feature(vcpu, feature);
+
+	val = vcpu_get_msr(vcpu, MSR_IA32_FEAT_CTL);
+	vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, val | msr_bit | FEAT_CTL_LOCKED);
+	vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, (val & ~msr_bit) | FEAT_CTL_LOCKED);
+	vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, val | msr_bit | FEAT_CTL_LOCKED);
+	vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, (val & ~msr_bit) | FEAT_CTL_LOCKED);
+	vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, val);
+
+	if (!kvm_cpu_has(feature))
+		return;
+
+	vcpu_set_cpuid_feature(vcpu, feature);
+}
+
+static void ia32_feature_control_msr_test(struct kvm_vcpu *vcpu)
+{
+	uint64_t supported_bits = FEAT_CTL_LOCKED |
+				  FEAT_CTL_VMX_ENABLED_INSIDE_SMX |
+				  FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX |
+				  FEAT_CTL_SGX_LC_ENABLED |
+				  FEAT_CTL_SGX_ENABLED |
+				  FEAT_CTL_LMCE_ENABLED;
+	int bit, r;
+
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_VMX_ENABLED_INSIDE_SMX, X86_FEATURE_SMX);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_VMX_ENABLED_INSIDE_SMX, X86_FEATURE_VMX);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX, X86_FEATURE_VMX);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_SGX_LC_ENABLED, X86_FEATURE_SGX_LC);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_SGX_LC_ENABLED, X86_FEATURE_SGX);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_SGX_ENABLED, X86_FEATURE_SGX);
+	__ia32_feature_control_msr_test(vcpu, FEAT_CTL_LMCE_ENABLED, X86_FEATURE_MCE);
+
+	for_each_clear_bit(bit, &supported_bits, 64) {
+		r = _vcpu_set_msr(vcpu, MSR_IA32_FEAT_CTL, BIT(bit));
+		TEST_ASSERT(r == 0,
+			    "Setting reserved bit %d in IA32_FEATURE_CONTROL should fail", bit);
+	}
+}
+
+int main(void)
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_DISABLE_QUIRKS2));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	/* No need to actually do KVM_RUN, thus no guest code. */
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+
+	vmx_save_restore_msrs_test(vcpu);
+	ia32_feature_control_msr_test(vcpu);
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_nested_la57_state_test.c b/tools/testing/selftests/kvm/x86/vmx_nested_la57_state_test.c
new file mode 100644
index 000000000000..cf1d2d1f2a8f
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_nested_la57_state_test.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2025, Google LLC.
+ *
+ * Test KVM's ability to save and restore nested state when the L1 guest
+ * is using 5-level paging and the L2 guest is using 4-level paging.
+ *
+ * This test would have failed prior to commit 9245fd6b8531 ("KVM: x86:
+ * model canonical checks more precisely").
+ */
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#define LA57_GS_BASE 0xff2bc0311fb00000ull
+
+static void l2_guest_code(void)
+{
+	/*
+	 * Sync with L0 to trigger save/restore.  After
+	 * resuming, execute VMCALL to exit back to L1.
+	 */
+	GUEST_SYNC(1);
+	vmcall();
+}
+
+static void l1_guest_code(struct vmx_pages *vmx_pages)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	u64 guest_cr4;
+	vm_paddr_t pml5_pa, pml4_pa;
+	u64 *pml5;
+	u64 exit_reason;
+
+	/* Set GS_BASE to a value that is only canonical with LA57. */
+	wrmsr(MSR_GS_BASE, LA57_GS_BASE);
+	GUEST_ASSERT(rdmsr(MSR_GS_BASE) == LA57_GS_BASE);
+
+	GUEST_ASSERT(vmx_pages->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/*
+	 * Set up L2 with a 4-level page table by pointing its CR3 to
+	 * L1's first PML4 table and clearing CR4.LA57. This creates
+	 * the CR4.LA57 mismatch that exercises the bug.
+	 */
+	pml5_pa = get_cr3() & PHYSICAL_PAGE_MASK;
+	pml5 = (u64 *)pml5_pa;
+	pml4_pa = pml5[0] & PHYSICAL_PAGE_MASK;
+	vmwrite(GUEST_CR3, pml4_pa);
+
+	guest_cr4 = vmreadz(GUEST_CR4);
+	guest_cr4 &= ~X86_CR4_LA57;
+	vmwrite(GUEST_CR4, guest_cr4);
+
+	GUEST_ASSERT(!vmlaunch());
+
+	exit_reason = vmreadz(VM_EXIT_REASON);
+	GUEST_ASSERT(exit_reason == EXIT_REASON_VMCALL);
+}
+
+void guest_code(struct vmx_pages *vmx_pages)
+{
+	l1_guest_code(vmx_pages);
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t vmx_pages_gva = 0;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	struct kvm_x86_state *state;
+	struct ucall uc;
+	int stage;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_LA57));
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	/*
+	 * L1 needs to read its own PML5 table to set up L2. Identity map
+	 * the PML5 table to facilitate this.
+	 */
+	virt_map(vm, vm->pgd, vm->pgd, 1);
+
+	vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	vcpu_args_set(vcpu, 1, vmx_pages_gva);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		TEST_ASSERT(uc.args[1] == stage,
+			    "Expected stage %d, got stage %lu", stage, (ulong)uc.args[1]);
+		if (stage == 1) {
+			pr_info("L2 is active; performing save/restore.\n");
+			state = vcpu_save_state(vcpu);
+
+			kvm_vm_release(vm);
+
+			/* Restore state in a new VM. */
+			vcpu = vm_recreate_with_one_vcpu(vm);
+			vcpu_load_state(vcpu, state);
+			kvm_x86_state_cleanup(state);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c b/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c
new file mode 100644
index 000000000000..7ff6f62e20a3
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_pmu_caps_test.c
@@ -0,0 +1,248 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for VMX-pmu perf capability msr
+ *
+ * Copyright (C) 2021 Intel Corporation
+ *
+ * Test to check the effect of various CPUID settings on
+ * MSR_IA32_PERF_CAPABILITIES MSR, and check that what
+ * we write with KVM_SET_MSR is _not_ modified by the guest
+ * and check it can be retrieved with KVM_GET_MSR, also test
+ * the invalid LBR formats are rejected.
+ */
+#include <sys/ioctl.h>
+
+#include <linux/bitmap.h>
+
+#include "kvm_test_harness.h"
+#include "kvm_util.h"
+#include "vmx.h"
+
+static union perf_capabilities {
+	struct {
+		u64	lbr_format:6;
+		u64	pebs_trap:1;
+		u64	pebs_arch_reg:1;
+		u64	pebs_format:4;
+		u64	smm_freeze:1;
+		u64	full_width_write:1;
+		u64 pebs_baseline:1;
+		u64	perf_metrics:1;
+		u64	pebs_output_pt_available:1;
+		u64	pebs_timing_info:1;
+	};
+	u64	capabilities;
+} host_cap;
+
+/*
+ * The LBR format and most PEBS features are immutable, all other features are
+ * fungible (if supported by the host and KVM).
+ */
+static const union perf_capabilities immutable_caps = {
+	.lbr_format = -1,
+	.pebs_trap  = 1,
+	.pebs_arch_reg = 1,
+	.pebs_format = -1,
+	.pebs_baseline = 1,
+	.pebs_timing_info = 1,
+};
+
+static const union perf_capabilities format_caps = {
+	.lbr_format = -1,
+	.pebs_format = -1,
+};
+
+static void guest_test_perf_capabilities_gp(uint64_t val)
+{
+	uint8_t vector = wrmsr_safe(MSR_IA32_PERF_CAPABILITIES, val);
+
+	__GUEST_ASSERT(vector == GP_VECTOR,
+		       "Expected #GP for value '0x%lx', got %s",
+		       val, ex_str(vector));
+}
+
+static void guest_code(uint64_t current_val)
+{
+	int i;
+
+	guest_test_perf_capabilities_gp(current_val);
+	guest_test_perf_capabilities_gp(0);
+
+	for (i = 0; i < 64; i++)
+		guest_test_perf_capabilities_gp(current_val ^ BIT_ULL(i));
+
+	GUEST_DONE();
+}
+
+KVM_ONE_VCPU_TEST_SUITE(vmx_pmu_caps);
+
+/*
+ * Verify that guest WRMSRs to PERF_CAPABILITIES #GP regardless of the value
+ * written, that the guest always sees the userspace controlled value, and that
+ * PERF_CAPABILITIES is immutable after KVM_RUN.
+ */
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, guest_wrmsr_perf_capabilities, guest_code)
+{
+	struct ucall uc;
+	int r, i;
+
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+
+	vcpu_args_set(vcpu, 1, host_cap.capabilities);
+	vcpu_run(vcpu);
+
+	switch (get_ucall(vcpu, &uc)) {
+	case UCALL_ABORT:
+		REPORT_GUEST_ASSERT(uc);
+		break;
+	case UCALL_DONE:
+		break;
+	default:
+		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
+	}
+
+	TEST_ASSERT_EQ(vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES),
+			host_cap.capabilities);
+
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+
+	r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, 0);
+	TEST_ASSERT(!r, "Post-KVM_RUN write '0' didn't fail");
+
+	for (i = 0; i < 64; i++) {
+		r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES,
+				  host_cap.capabilities ^ BIT_ULL(i));
+		TEST_ASSERT(!r, "Post-KVM_RUN write '0x%llx'didn't fail",
+			    host_cap.capabilities ^ BIT_ULL(i));
+	}
+}
+
+/*
+ * Verify KVM allows writing PERF_CAPABILITIES with all KVM-supported features
+ * enabled, as well as '0' (to disable all features).
+ */
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, basic_perf_capabilities, guest_code)
+{
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, 0);
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+}
+
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, fungible_perf_capabilities, guest_code)
+{
+	const uint64_t fungible_caps = host_cap.capabilities & ~immutable_caps.capabilities;
+	int bit;
+
+	for_each_set_bit(bit, &fungible_caps, 64) {
+		vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, BIT_ULL(bit));
+		vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES,
+			     host_cap.capabilities & ~BIT_ULL(bit));
+	}
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+}
+
+/*
+ * Verify KVM rejects attempts to set unsupported and/or immutable features in
+ * PERF_CAPABILITIES.  Note, LBR format and PEBS format need to be validated
+ * separately as they are multi-bit values, e.g. toggling or setting a single
+ * bit can generate a false positive without dedicated safeguards.
+ */
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, immutable_perf_capabilities, guest_code)
+{
+	const uint64_t reserved_caps = (~host_cap.capabilities |
+					immutable_caps.capabilities) &
+				       ~format_caps.capabilities;
+	union perf_capabilities val = host_cap;
+	int r, bit;
+
+	for_each_set_bit(bit, &reserved_caps, 64) {
+		r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES,
+				  host_cap.capabilities ^ BIT_ULL(bit));
+		TEST_ASSERT(!r, "%s immutable feature 0x%llx (bit %d) didn't fail",
+			    host_cap.capabilities & BIT_ULL(bit) ? "Setting" : "Clearing",
+			    BIT_ULL(bit), bit);
+	}
+
+	/*
+	 * KVM only supports the host's native LBR format, as well as '0' (to
+	 * disable LBR support).  Verify KVM rejects all other LBR formats.
+	 */
+	for (val.lbr_format = 1; val.lbr_format; val.lbr_format++) {
+		if (val.lbr_format == host_cap.lbr_format)
+			continue;
+
+		r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, val.capabilities);
+		TEST_ASSERT(!r, "Bad LBR FMT = 0x%x didn't fail, host = 0x%x",
+			    val.lbr_format, host_cap.lbr_format);
+	}
+
+	/* Ditto for the PEBS format. */
+	for (val.pebs_format = 1; val.pebs_format; val.pebs_format++) {
+		if (val.pebs_format == host_cap.pebs_format)
+			continue;
+
+		r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, val.capabilities);
+		TEST_ASSERT(!r, "Bad PEBS FMT = 0x%x didn't fail, host = 0x%x",
+			    val.pebs_format, host_cap.pebs_format);
+	}
+}
+
+/*
+ * Test that LBR MSRs are writable when LBRs are enabled, and then verify that
+ * disabling the vPMU via CPUID also disables LBR support.  Set bits 2:0 of
+ * LBR_TOS as those bits are writable across all uarch implementations (arch
+ * LBRs will need to poke a different MSR).
+ */
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, lbr_perf_capabilities, guest_code)
+{
+	int r;
+
+	if (!host_cap.lbr_format)
+		return;
+
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+	vcpu_set_msr(vcpu, MSR_LBR_TOS, 7);
+
+	vcpu_clear_cpuid_entry(vcpu, X86_PROPERTY_PMU_VERSION.function);
+
+	r = _vcpu_set_msr(vcpu, MSR_LBR_TOS, 7);
+	TEST_ASSERT(!r, "Writing LBR_TOS should fail after disabling vPMU");
+}
+
+KVM_ONE_VCPU_TEST(vmx_pmu_caps, perf_capabilities_unsupported, guest_code)
+{
+	uint64_t val;
+	int i, r;
+
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, host_cap.capabilities);
+	val = vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES);
+	TEST_ASSERT_EQ(val, host_cap.capabilities);
+
+	vcpu_clear_cpuid_feature(vcpu, X86_FEATURE_PDCM);
+
+	val = vcpu_get_msr(vcpu, MSR_IA32_PERF_CAPABILITIES);
+	TEST_ASSERT_EQ(val, 0);
+
+	vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, 0);
+
+	for (i = 0; i < 64; i++) {
+		r = _vcpu_set_msr(vcpu, MSR_IA32_PERF_CAPABILITIES, BIT_ULL(i));
+		TEST_ASSERT(!r, "Setting PERF_CAPABILITIES bit %d (= 0x%llx) should fail without PDCM",
+			    i, BIT_ULL(i));
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	TEST_REQUIRE(kvm_is_pmu_enabled());
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_PDCM));
+
+	TEST_REQUIRE(kvm_cpu_has_p(X86_PROPERTY_PMU_VERSION));
+	TEST_REQUIRE(kvm_cpu_property(X86_PROPERTY_PMU_VERSION) > 0);
+
+	host_cap.capabilities = kvm_get_feature_msr(MSR_IA32_PERF_CAPABILITIES);
+
+	TEST_ASSERT(host_cap.full_width_write,
+		    "Full-width writes should always be supported");
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_preemption_timer_test.c b/tools/testing/selftests/kvm/x86/vmx_preemption_timer_test.c
new file mode 100644
index 000000000000..00dd2ac07a61
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_preemption_timer_test.c
@@ -0,0 +1,245 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * VMX-preemption timer test
+ *
+ * Copyright (C) 2020, Google, LLC.
+ *
+ * Test to ensure the VM-Enter after migration doesn't
+ * incorrectly restarts the timer with the full timer
+ * value instead of partially decayed timer value
+ *
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#define PREEMPTION_TIMER_VALUE			100000000ull
+#define PREEMPTION_TIMER_VALUE_THRESHOLD1	 80000000ull
+
+u32 vmx_pt_rate;
+bool l2_save_restore_done;
+static u64 l2_vmx_pt_start;
+volatile u64 l2_vmx_pt_finish;
+
+union vmx_basic basic;
+union vmx_ctrl_msr ctrl_pin_rev;
+union vmx_ctrl_msr ctrl_exit_rev;
+
+void l2_guest_code(void)
+{
+	u64 vmx_pt_delta;
+
+	vmcall();
+	l2_vmx_pt_start = (rdtsc() >> vmx_pt_rate) << vmx_pt_rate;
+
+	/*
+	 * Wait until the 1st threshold has passed
+	 */
+	do {
+		l2_vmx_pt_finish = rdtsc();
+		vmx_pt_delta = (l2_vmx_pt_finish - l2_vmx_pt_start) >>
+				vmx_pt_rate;
+	} while (vmx_pt_delta < PREEMPTION_TIMER_VALUE_THRESHOLD1);
+
+	/*
+	 * Force L2 through Save and Restore cycle
+	 */
+	GUEST_SYNC(1);
+
+	l2_save_restore_done = 1;
+
+	/*
+	 * Now wait for the preemption timer to fire and
+	 * exit to L1
+	 */
+	while ((l2_vmx_pt_finish = rdtsc()))
+		;
+}
+
+void l1_guest_code(struct vmx_pages *vmx_pages)
+{
+#define L2_GUEST_STACK_SIZE 64
+	unsigned long l2_guest_stack[L2_GUEST_STACK_SIZE];
+	u64 l1_vmx_pt_start;
+	u64 l1_vmx_pt_finish;
+	u64 l1_tsc_deadline, l2_tsc_deadline;
+
+	GUEST_ASSERT(vmx_pages->vmcs_gpa);
+	GUEST_ASSERT(prepare_for_vmx_operation(vmx_pages));
+	GUEST_ASSERT(load_vmcs(vmx_pages));
+	GUEST_ASSERT(vmptrstz() == vmx_pages->vmcs_gpa);
+
+	prepare_vmcs(vmx_pages, l2_guest_code,
+		     &l2_guest_stack[L2_GUEST_STACK_SIZE]);
+
+	/*
+	 * Check for Preemption timer support
+	 */
+	basic.val = rdmsr(MSR_IA32_VMX_BASIC);
+	ctrl_pin_rev.val = rdmsr(basic.ctrl ? MSR_IA32_VMX_TRUE_PINBASED_CTLS
+			: MSR_IA32_VMX_PINBASED_CTLS);
+	ctrl_exit_rev.val = rdmsr(basic.ctrl ? MSR_IA32_VMX_TRUE_EXIT_CTLS
+			: MSR_IA32_VMX_EXIT_CTLS);
+
+	if (!(ctrl_pin_rev.clr & PIN_BASED_VMX_PREEMPTION_TIMER) ||
+	    !(ctrl_exit_rev.clr & VM_EXIT_SAVE_VMX_PREEMPTION_TIMER))
+		return;
+
+	GUEST_ASSERT(!vmlaunch());
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_VMCALL);
+	vmwrite(GUEST_RIP, vmreadz(GUEST_RIP) + vmreadz(VM_EXIT_INSTRUCTION_LEN));
+
+	/*
+	 * Turn on PIN control and resume the guest
+	 */
+	GUEST_ASSERT(!vmwrite(PIN_BASED_VM_EXEC_CONTROL,
+			      vmreadz(PIN_BASED_VM_EXEC_CONTROL) |
+			      PIN_BASED_VMX_PREEMPTION_TIMER));
+
+	GUEST_ASSERT(!vmwrite(VMX_PREEMPTION_TIMER_VALUE,
+			      PREEMPTION_TIMER_VALUE));
+
+	vmx_pt_rate = rdmsr(MSR_IA32_VMX_MISC) & 0x1F;
+
+	l2_save_restore_done = 0;
+
+	l1_vmx_pt_start = (rdtsc() >> vmx_pt_rate) << vmx_pt_rate;
+
+	GUEST_ASSERT(!vmresume());
+
+	l1_vmx_pt_finish = rdtsc();
+
+	/*
+	 * Ensure exit from L2 happens after L2 goes through
+	 * save and restore
+	 */
+	GUEST_ASSERT(l2_save_restore_done);
+
+	/*
+	 * Ensure the exit from L2 is due to preemption timer expiry
+	 */
+	GUEST_ASSERT(vmreadz(VM_EXIT_REASON) == EXIT_REASON_PREEMPTION_TIMER);
+
+	l1_tsc_deadline = l1_vmx_pt_start +
+		(PREEMPTION_TIMER_VALUE << vmx_pt_rate);
+
+	l2_tsc_deadline = l2_vmx_pt_start +
+		(PREEMPTION_TIMER_VALUE << vmx_pt_rate);
+
+	/*
+	 * Sync with the host and pass the l1|l2 pt_expiry_finish times and
+	 * tsc deadlines so that host can verify they are as expected
+	 */
+	GUEST_SYNC_ARGS(2, l1_vmx_pt_finish, l1_tsc_deadline,
+		l2_vmx_pt_finish, l2_tsc_deadline);
+}
+
+void guest_code(struct vmx_pages *vmx_pages)
+{
+	if (vmx_pages)
+		l1_guest_code(vmx_pages);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	vm_vaddr_t vmx_pages_gva = 0;
+
+	struct kvm_regs regs1, regs2;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	struct kvm_x86_state *state;
+	struct ucall uc;
+	int stage;
+
+	/*
+	 * AMD currently does not implement any VMX features, so for now we
+	 * just early out.
+	 */
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	vcpu_regs_get(vcpu, &regs1);
+
+	vcpu_alloc_vmx(vm, &vmx_pages_gva);
+	vcpu_args_set(vcpu, 1, vmx_pages_gva);
+
+	for (stage = 1;; stage++) {
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+
+		/* UCALL_SYNC is handled here.  */
+		TEST_ASSERT(!strcmp((const char *)uc.args[0], "hello") &&
+			    uc.args[1] == stage, "Stage %d: Unexpected register values vmexit, got %lx",
+			    stage, (ulong)uc.args[1]);
+		/*
+		 * If this stage 2 then we should verify the vmx pt expiry
+		 * is as expected.
+		 * From L1's perspective verify Preemption timer hasn't
+		 * expired too early.
+		 * From L2's perspective verify Preemption timer hasn't
+		 * expired too late.
+		 */
+		if (stage == 2) {
+
+			pr_info("Stage %d: L1 PT expiry TSC (%lu) , L1 TSC deadline (%lu)\n",
+				stage, uc.args[2], uc.args[3]);
+
+			pr_info("Stage %d: L2 PT expiry TSC (%lu) , L2 TSC deadline (%lu)\n",
+				stage, uc.args[4], uc.args[5]);
+
+			TEST_ASSERT(uc.args[2] >= uc.args[3],
+				"Stage %d: L1 PT expiry TSC (%lu) < L1 TSC deadline (%lu)",
+				stage, uc.args[2], uc.args[3]);
+
+			TEST_ASSERT(uc.args[4] < uc.args[5],
+				"Stage %d: L2 PT expiry TSC (%lu) > L2 TSC deadline (%lu)",
+				stage, uc.args[4], uc.args[5]);
+		}
+
+		state = vcpu_save_state(vcpu);
+		memset(&regs1, 0, sizeof(regs1));
+		vcpu_regs_get(vcpu, &regs1);
+
+		kvm_vm_release(vm);
+
+		/* Restore state in a new VM.  */
+		vcpu = vm_recreate_with_one_vcpu(vm);
+		vcpu_load_state(vcpu, state);
+		kvm_x86_state_cleanup(state);
+
+		memset(&regs2, 0, sizeof(regs2));
+		vcpu_regs_get(vcpu, &regs2);
+		TEST_ASSERT(!memcmp(&regs1, &regs2, sizeof(regs2)),
+			    "Unexpected register values after vcpu_load_state; rdi: %lx rsi: %lx",
+			    (ulong) regs2.rdi, (ulong) regs2.rsi);
+	}
+
+done:
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/kvm/x86/vmx_set_nested_state_test.c b/tools/testing/selftests/kvm/x86/vmx_set_nested_state_test.c
new file mode 100644
index 000000000000..67a62a5a8895
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/vmx_set_nested_state_test.c
@@ -0,0 +1,304 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vmx_set_nested_state_test
+ *
+ * Copyright (C) 2019, Google LLC.
+ *
+ * This test verifies the integrity of calling the ioctl KVM_SET_NESTED_STATE.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "vmx.h"
+
+#include <errno.h>
+#include <linux/kvm.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+/*
+ * Mirror of VMCS12_REVISION in arch/x86/kvm/vmx/vmcs12.h. If that value
+ * changes this should be updated.
+ */
+#define VMCS12_REVISION 0x11e57ed0
+
+bool have_evmcs;
+
+void test_nested_state(struct kvm_vcpu *vcpu, struct kvm_nested_state *state)
+{
+	vcpu_nested_state_set(vcpu, state);
+}
+
+void test_nested_state_expect_errno(struct kvm_vcpu *vcpu,
+				    struct kvm_nested_state *state,
+				    int expected_errno)
+{
+	int rv;
+
+	rv = __vcpu_nested_state_set(vcpu, state);
+	TEST_ASSERT(rv == -1 && errno == expected_errno,
+		"Expected %s (%d) from vcpu_nested_state_set but got rv: %i errno: %s (%d)",
+		strerror(expected_errno), expected_errno, rv, strerror(errno),
+		errno);
+}
+
+void test_nested_state_expect_einval(struct kvm_vcpu *vcpu,
+				     struct kvm_nested_state *state)
+{
+	test_nested_state_expect_errno(vcpu, state, EINVAL);
+}
+
+void test_nested_state_expect_efault(struct kvm_vcpu *vcpu,
+				     struct kvm_nested_state *state)
+{
+	test_nested_state_expect_errno(vcpu, state, EFAULT);
+}
+
+void set_revision_id_for_vmcs12(struct kvm_nested_state *state,
+				u32 vmcs12_revision)
+{
+	/* Set revision_id in vmcs12 to vmcs12_revision. */
+	memcpy(&state->data, &vmcs12_revision, sizeof(u32));
+}
+
+void set_default_state(struct kvm_nested_state *state)
+{
+	memset(state, 0, sizeof(*state));
+	state->flags = KVM_STATE_NESTED_RUN_PENDING |
+		       KVM_STATE_NESTED_GUEST_MODE;
+	state->format = 0;
+	state->size = sizeof(*state);
+}
+
+void set_default_vmx_state(struct kvm_nested_state *state, int size)
+{
+	memset(state, 0, size);
+	if (have_evmcs)
+		state->flags = KVM_STATE_NESTED_EVMCS;
+	state->format = 0;
+	state->size = size;
+	state->hdr.vmx.vmxon_pa = 0x1000;
+	state->hdr.vmx.vmcs12_pa = 0x2000;
+	state->hdr.vmx.smm.flags = 0;
+	set_revision_id_for_vmcs12(state, VMCS12_REVISION);
+}
+
+void test_vmx_nested_state(struct kvm_vcpu *vcpu)
+{
+	/* Add a page for VMCS12. */
+	const int state_sz = sizeof(struct kvm_nested_state) + getpagesize();
+	struct kvm_nested_state *state =
+		(struct kvm_nested_state *)malloc(state_sz);
+
+	/* The format must be set to 0. 0 for VMX, 1 for SVM. */
+	set_default_vmx_state(state, state_sz);
+	state->format = 1;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * We cannot virtualize anything if the guest does not have VMX
+	 * enabled.
+	 */
+	set_default_vmx_state(state, state_sz);
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * We cannot virtualize anything if the guest does not have VMX
+	 * enabled.  We expect KVM_SET_NESTED_STATE to return 0 if vmxon_pa
+	 * is set to -1ull, but the flags must be zero.
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.vmxon_pa = -1ull;
+	test_nested_state_expect_einval(vcpu, state);
+
+	state->hdr.vmx.vmcs12_pa = -1ull;
+	state->flags = KVM_STATE_NESTED_EVMCS;
+	test_nested_state_expect_einval(vcpu, state);
+
+	state->flags = 0;
+	test_nested_state(vcpu, state);
+
+	/* Enable VMX in the guest CPUID. */
+	vcpu_set_cpuid_feature(vcpu, X86_FEATURE_VMX);
+
+	/*
+	 * Setting vmxon_pa == -1ull and vmcs_pa == -1ull exits early without
+	 * setting the nested state. When the eVMCS flag is not set, the
+	 * expected return value is '0'.
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->flags = 0;
+	state->hdr.vmx.vmxon_pa = -1ull;
+	state->hdr.vmx.vmcs12_pa = -1ull;
+	test_nested_state(vcpu, state);
+
+	/*
+	 * When eVMCS is supported, the eVMCS flag can only be set if the
+	 * enlightened VMCS capability has been enabled.
+	 */
+	if (have_evmcs) {
+		state->flags = KVM_STATE_NESTED_EVMCS;
+		test_nested_state_expect_einval(vcpu, state);
+		vcpu_enable_evmcs(vcpu);
+		test_nested_state(vcpu, state);
+	}
+
+	/* It is invalid to have vmxon_pa == -1ull and SMM flags non-zero. */
+	state->hdr.vmx.smm.flags = 1;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/* Invalid flags are rejected. */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.flags = ~0;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/* It is invalid to have vmxon_pa == -1ull and vmcs_pa != -1ull. */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.vmxon_pa = -1ull;
+	state->flags = 0;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/* It is invalid to have vmxon_pa set to a non-page aligned address. */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.vmxon_pa = 1;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * It is invalid to have KVM_STATE_NESTED_SMM_GUEST_MODE and
+	 * KVM_STATE_NESTED_GUEST_MODE set together.
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->flags = KVM_STATE_NESTED_GUEST_MODE  |
+		      KVM_STATE_NESTED_RUN_PENDING;
+	state->hdr.vmx.smm.flags = KVM_STATE_NESTED_SMM_GUEST_MODE;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * It is invalid to have any of the SMM flags set besides:
+	 *	KVM_STATE_NESTED_SMM_GUEST_MODE
+	 *	KVM_STATE_NESTED_SMM_VMXON
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.smm.flags = ~(KVM_STATE_NESTED_SMM_GUEST_MODE |
+				KVM_STATE_NESTED_SMM_VMXON);
+	test_nested_state_expect_einval(vcpu, state);
+
+	/* Outside SMM, SMM flags must be zero. */
+	set_default_vmx_state(state, state_sz);
+	state->flags = 0;
+	state->hdr.vmx.smm.flags = KVM_STATE_NESTED_SMM_GUEST_MODE;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * Size must be large enough to fit kvm_nested_state and vmcs12
+	 * if VMCS12 physical address is set
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->size = sizeof(*state);
+	state->flags = 0;
+	test_nested_state_expect_einval(vcpu, state);
+
+	set_default_vmx_state(state, state_sz);
+	state->size = sizeof(*state);
+	state->flags = 0;
+	state->hdr.vmx.vmcs12_pa = -1;
+	test_nested_state(vcpu, state);
+
+	/*
+	 * KVM_SET_NESTED_STATE succeeds with invalid VMCS
+	 * contents but L2 not running.
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->flags = 0;
+	test_nested_state(vcpu, state);
+
+	/* Invalid flags are rejected, even if no VMCS loaded. */
+	set_default_vmx_state(state, state_sz);
+	state->size = sizeof(*state);
+	state->flags = 0;
+	state->hdr.vmx.vmcs12_pa = -1;
+	state->hdr.vmx.flags = ~0;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/* vmxon_pa cannot be the same address as vmcs_pa. */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.vmxon_pa = 0;
+	state->hdr.vmx.vmcs12_pa = 0;
+	test_nested_state_expect_einval(vcpu, state);
+
+	/*
+	 * Test that if we leave nesting the state reflects that when we get
+	 * it again.
+	 */
+	set_default_vmx_state(state, state_sz);
+	state->hdr.vmx.vmxon_pa = -1ull;
+	state->hdr.vmx.vmcs12_pa = -1ull;
+	state->flags = 0;
+	test_nested_state(vcpu, state);
+	vcpu_nested_state_get(vcpu, state);
+	TEST_ASSERT(state->size >= sizeof(*state) && state->size <= state_sz,
+		    "Size must be between %ld and %d.  The size returned was %d.",
+		    sizeof(*state), state_sz, state->size);
+	TEST_ASSERT(state->hdr.vmx.vmxon_pa == -1ull, "vmxon_pa must be -1ull.");
+	TEST_ASSERT(state->hdr.vmx.vmcs12_pa == -1ull, "vmcs_pa must be -1ull.");
+
+	free(state);
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vm *vm;
+	struct kvm_nested_state state;
+	struct kvm_vcpu *vcpu;
+
+	have_evmcs = kvm_check_cap(KVM_CAP_HYPERV_ENLIGHTENED_VMCS);
+
+	TEST_REQUIRE(kvm_has_cap(KVM_CAP_NESTED_STATE));
+
+	/*
+	 * AMD currently does not implement set_nested_state, so for now we
+	 * just early out.
+	 */
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_VMX));
+
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+
+	/*
+	 * First run tests with VMX disabled to check error handling.
+	 */
+	vcpu_clear_cpuid_feature(vcpu, X86_FEATURE_VMX);
+
+	/* Passing a NULL kvm_nested_state causes a EFAULT. */
+	test_nested_state_expect_efault(vcpu, NULL);
+
+	/* 'size' cannot be smaller than sizeof(kvm_nested_state). */
+	set_default_state(&state);
+	state.size = 0;
+	test_nested_state_expect_einval(vcpu, &state);
+
+	/*
+	 * Setting the flags 0xf fails the flags check.  The only flags that
+	 * can be used are:
+	 *     KVM_STATE_NESTED_GUEST_MODE
+	 *     KVM_STATE_NESTED_RUN_PENDING
+	 *     KVM_STATE_NESTED_EVMCS
+	 */
+	set_default_state(&state);
+	state.flags = 0xf;
+	test_nested_state_expect_einval(vcpu, &state);
+
+	/*
+	 * If KVM_STATE_NESTED_RUN_PENDING is set then
+	 * KVM_STATE_NESTED_GUEST_MODE has to be set as well.
+	 */
+	set_default_state(&state);
+	state.flags = KVM_STATE_NESTED_RUN_PENDING;
+	test_nested_state_expect_einval(vcpu, &state);
+
+	test_vmx_nested_state(vcpu);
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/xapic_ipi_test.c b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c
new file mode 100644
index 000000000000..ae4a4b6c05ca
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xapic_ipi_test.c
@@ -0,0 +1,500 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * xapic_ipi_test
+ *
+ * Copyright (C) 2020, Google LLC.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.
+ *
+ * Test that when the APIC is in xAPIC mode, a vCPU can send an IPI to wake
+ * another vCPU that is halted when KVM's backing page for the APIC access
+ * address has been moved by mm.
+ *
+ * The test starts two vCPUs: one that sends IPIs and one that continually
+ * executes HLT. The sender checks that the halter has woken from the HLT and
+ * has reentered HLT before sending the next IPI. While the vCPUs are running,
+ * the host continually calls migrate_pages to move all of the process' pages
+ * amongst the available numa nodes on the machine.
+ *
+ * Migration is a command line option. When used on non-numa machines will 
+ * exit with error. Test is still usefull on non-numa for testing IPIs.
+ */
+#include <getopt.h>
+#include <pthread.h>
+#include <inttypes.h>
+#include <string.h>
+#include <time.h>
+
+#include "kvm_util.h"
+#include "numaif.h"
+#include "processor.h"
+#include "test_util.h"
+#include "vmx.h"
+
+/* Default running time for the test */
+#define DEFAULT_RUN_SECS 3
+
+/* Default delay between migrate_pages calls (microseconds) */
+#define DEFAULT_DELAY_USECS 500000
+
+/*
+ * Vector for IPI from sender vCPU to halting vCPU.
+ * Value is arbitrary and was chosen for the alternating bit pattern. Any
+ * value should work.
+ */
+#define IPI_VECTOR	 0xa5
+
+/*
+ * Incremented in the IPI handler. Provides evidence to the sender that the IPI
+ * arrived at the destination
+ */
+static volatile uint64_t ipis_rcvd;
+
+/* Data struct shared between host main thread and vCPUs */
+struct test_data_page {
+	uint32_t halter_apic_id;
+	volatile uint64_t hlt_count;
+	volatile uint64_t wake_count;
+	uint64_t ipis_sent;
+	uint64_t migrations_attempted;
+	uint64_t migrations_completed;
+	uint32_t icr;
+	uint32_t icr2;
+	uint32_t halter_tpr;
+	uint32_t halter_ppr;
+
+	/*
+	 *  Record local version register as a cross-check that APIC access
+	 *  worked. Value should match what KVM reports (APIC_VERSION in
+	 *  arch/x86/kvm/lapic.c). If test is failing, check that values match
+	 *  to determine whether APIC access exits are working.
+	 */
+	uint32_t halter_lvr;
+};
+
+struct thread_params {
+	struct test_data_page *data;
+	struct kvm_vcpu *vcpu;
+	uint64_t *pipis_rcvd; /* host address of ipis_rcvd global */
+};
+
+void verify_apic_base_addr(void)
+{
+	uint64_t msr = rdmsr(MSR_IA32_APICBASE);
+	uint64_t base = GET_APIC_BASE(msr);
+
+	GUEST_ASSERT(base == APIC_DEFAULT_GPA);
+}
+
+static void halter_guest_code(struct test_data_page *data)
+{
+	verify_apic_base_addr();
+	xapic_enable();
+
+	data->halter_apic_id = GET_APIC_ID_FIELD(xapic_read_reg(APIC_ID));
+	data->halter_lvr = xapic_read_reg(APIC_LVR);
+
+	/*
+	 * Loop forever HLTing and recording halts & wakes. Disable interrupts
+	 * each time around to minimize window between signaling the pending
+	 * halt to the sender vCPU and executing the halt. No need to disable on
+	 * first run as this vCPU executes first and the host waits for it to
+	 * signal going into first halt before starting the sender vCPU. Record
+	 * TPR and PPR for diagnostic purposes in case the test fails.
+	 */
+	for (;;) {
+		data->halter_tpr = xapic_read_reg(APIC_TASKPRI);
+		data->halter_ppr = xapic_read_reg(APIC_PROCPRI);
+		data->hlt_count++;
+		safe_halt();
+		cli();
+		data->wake_count++;
+	}
+}
+
+/*
+ * Runs on halter vCPU when IPI arrives. Write an arbitrary non-zero value to
+ * enable diagnosing errant writes to the APIC access address backing page in
+ * case of test failure.
+ */
+static void guest_ipi_handler(struct ex_regs *regs)
+{
+	ipis_rcvd++;
+	xapic_write_reg(APIC_EOI, 77);
+}
+
+static void sender_guest_code(struct test_data_page *data)
+{
+	uint64_t last_wake_count;
+	uint64_t last_hlt_count;
+	uint64_t last_ipis_rcvd_count;
+	uint32_t icr_val;
+	uint32_t icr2_val;
+	uint64_t tsc_start;
+
+	verify_apic_base_addr();
+	xapic_enable();
+
+	/*
+	 * Init interrupt command register for sending IPIs
+	 *
+	 * Delivery mode=fixed, per SDM:
+	 *   "Delivers the interrupt specified in the vector field to the target
+	 *    processor."
+	 *
+	 * Destination mode=physical i.e. specify target by its local APIC
+	 * ID. This vCPU assumes that the halter vCPU has already started and
+	 * set data->halter_apic_id.
+	 */
+	icr_val = (APIC_DEST_PHYSICAL | APIC_DM_FIXED | IPI_VECTOR);
+	icr2_val = SET_APIC_DEST_FIELD(data->halter_apic_id);
+	data->icr = icr_val;
+	data->icr2 = icr2_val;
+
+	last_wake_count = data->wake_count;
+	last_hlt_count = data->hlt_count;
+	last_ipis_rcvd_count = ipis_rcvd;
+	for (;;) {
+		/*
+		 * Send IPI to halter vCPU.
+		 * First IPI can be sent unconditionally because halter vCPU
+		 * starts earlier.
+		 */
+		xapic_write_reg(APIC_ICR2, icr2_val);
+		xapic_write_reg(APIC_ICR, icr_val);
+		data->ipis_sent++;
+
+		/*
+		 * Wait up to ~1 sec for halter to indicate that it has:
+		 * 1. Received the IPI
+		 * 2. Woken up from the halt
+		 * 3. Gone back into halt
+		 * Current CPUs typically run at 2.x Ghz which is ~2
+		 * billion ticks per second.
+		 */
+		tsc_start = rdtsc();
+		while (rdtsc() - tsc_start < 2000000000) {
+			if ((ipis_rcvd != last_ipis_rcvd_count) &&
+			    (data->wake_count != last_wake_count) &&
+			    (data->hlt_count != last_hlt_count))
+				break;
+		}
+
+		GUEST_ASSERT((ipis_rcvd != last_ipis_rcvd_count) &&
+			     (data->wake_count != last_wake_count) &&
+			     (data->hlt_count != last_hlt_count));
+
+		last_wake_count = data->wake_count;
+		last_hlt_count = data->hlt_count;
+		last_ipis_rcvd_count = ipis_rcvd;
+	}
+}
+
+static void *vcpu_thread(void *arg)
+{
+	struct thread_params *params = (struct thread_params *)arg;
+	struct kvm_vcpu *vcpu = params->vcpu;
+	struct ucall uc;
+	int old;
+	int r;
+
+	r = pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, &old);
+	TEST_ASSERT(r == 0,
+		    "pthread_setcanceltype failed on vcpu_id=%u with errno=%d",
+		    vcpu->id, r);
+
+	fprintf(stderr, "vCPU thread running vCPU %u\n", vcpu->id);
+	vcpu_run(vcpu);
+
+	TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+	if (get_ucall(vcpu, &uc) == UCALL_ABORT) {
+		TEST_ASSERT(false,
+			    "vCPU %u exited with error: %s.\n"
+			    "Sending vCPU sent %lu IPIs to halting vCPU\n"
+			    "Halting vCPU halted %lu times, woke %lu times, received %lu IPIs.\n"
+			    "Halter TPR=%#x PPR=%#x LVR=%#x\n"
+			    "Migrations attempted: %lu\n"
+			    "Migrations completed: %lu",
+			    vcpu->id, (const char *)uc.args[0],
+			    params->data->ipis_sent, params->data->hlt_count,
+			    params->data->wake_count,
+			    *params->pipis_rcvd, params->data->halter_tpr,
+			    params->data->halter_ppr, params->data->halter_lvr,
+			    params->data->migrations_attempted,
+			    params->data->migrations_completed);
+	}
+
+	return NULL;
+}
+
+static void cancel_join_vcpu_thread(pthread_t thread, struct kvm_vcpu *vcpu)
+{
+	void *retval;
+	int r;
+
+	r = pthread_cancel(thread);
+	TEST_ASSERT(r == 0,
+		    "pthread_cancel on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+
+	r = pthread_join(thread, &retval);
+	TEST_ASSERT(r == 0,
+		    "pthread_join on vcpu_id=%d failed with errno=%d",
+		    vcpu->id, r);
+	TEST_ASSERT(retval == PTHREAD_CANCELED,
+		    "expected retval=%p, got %p", PTHREAD_CANCELED,
+		    retval);
+}
+
+void do_migrations(struct test_data_page *data, int run_secs, int delay_usecs,
+		   uint64_t *pipis_rcvd)
+{
+	long pages_not_moved;
+	unsigned long nodemask = 0;
+	unsigned long nodemasks[sizeof(nodemask) * 8];
+	int nodes = 0;
+	time_t start_time, last_update, now;
+	time_t interval_secs = 1;
+	int i;
+	int from, to;
+	unsigned long bit;
+	uint64_t hlt_count;
+	uint64_t wake_count;
+	uint64_t ipis_sent;
+
+	fprintf(stderr, "Calling migrate_pages every %d microseconds\n",
+		delay_usecs);
+
+	/* Get set of first 64 numa nodes available */
+	kvm_get_mempolicy(NULL, &nodemask, sizeof(nodemask) * 8,
+			  0, MPOL_F_MEMS_ALLOWED);
+
+	fprintf(stderr, "Numa nodes found amongst first %lu possible nodes "
+		"(each 1-bit indicates node is present): %#lx\n",
+		sizeof(nodemask) * 8, nodemask);
+
+	/* Init array of masks containing a single-bit in each, one for each
+	 * available node. migrate_pages called below requires specifying nodes
+	 * as bit masks.
+	 */
+	for (i = 0, bit = 1; i < sizeof(nodemask) * 8; i++, bit <<= 1) {
+		if (nodemask & bit) {
+			nodemasks[nodes] = nodemask & bit;
+			nodes++;
+		}
+	}
+
+	TEST_ASSERT(nodes > 1,
+		    "Did not find at least 2 numa nodes. Can't do migration");
+
+	fprintf(stderr, "Migrating amongst %d nodes found\n", nodes);
+
+	from = 0;
+	to = 1;
+	start_time = time(NULL);
+	last_update = start_time;
+
+	ipis_sent = data->ipis_sent;
+	hlt_count = data->hlt_count;
+	wake_count = data->wake_count;
+
+	while ((int)(time(NULL) - start_time) < run_secs) {
+		data->migrations_attempted++;
+
+		/*
+		 * migrate_pages with PID=0 will migrate all pages of this
+		 * process between the nodes specified as bitmasks. The page
+		 * backing the APIC access address belongs to this process
+		 * because it is allocated by KVM in the context of the
+		 * KVM_CREATE_VCPU ioctl. If that assumption ever changes this
+		 * test may break or give a false positive signal.
+		 */
+		pages_not_moved = migrate_pages(0, sizeof(nodemasks[from]),
+						&nodemasks[from],
+						&nodemasks[to]);
+		if (pages_not_moved < 0)
+			fprintf(stderr,
+				"migrate_pages failed, errno=%d\n", errno);
+		else if (pages_not_moved > 0)
+			fprintf(stderr,
+				"migrate_pages could not move %ld pages\n",
+				pages_not_moved);
+		else
+			data->migrations_completed++;
+
+		from = to;
+		to++;
+		if (to == nodes)
+			to = 0;
+
+		now = time(NULL);
+		if (((now - start_time) % interval_secs == 0) &&
+		    (now != last_update)) {
+			last_update = now;
+			fprintf(stderr,
+				"%lu seconds: Migrations attempted=%lu completed=%lu, "
+				"IPIs sent=%lu received=%lu, HLTs=%lu wakes=%lu\n",
+				now - start_time, data->migrations_attempted,
+				data->migrations_completed,
+				data->ipis_sent, *pipis_rcvd,
+				data->hlt_count, data->wake_count);
+
+			TEST_ASSERT(ipis_sent != data->ipis_sent &&
+				    hlt_count != data->hlt_count &&
+				    wake_count != data->wake_count,
+				    "IPI, HLT and wake count have not increased "
+				    "in the last %lu seconds. "
+				    "HLTer is likely hung.", interval_secs);
+
+			ipis_sent = data->ipis_sent;
+			hlt_count = data->hlt_count;
+			wake_count = data->wake_count;
+		}
+		usleep(delay_usecs);
+	}
+}
+
+void get_cmdline_args(int argc, char *argv[], int *run_secs,
+		      bool *migrate, int *delay_usecs)
+{
+	for (;;) {
+		int opt = getopt(argc, argv, "s:d:m");
+
+		if (opt == -1)
+			break;
+		switch (opt) {
+		case 's':
+			*run_secs = parse_size(optarg);
+			break;
+		case 'm':
+			*migrate = true;
+			break;
+		case 'd':
+			*delay_usecs = parse_size(optarg);
+			break;
+		default:
+			TEST_ASSERT(false,
+				    "Usage: -s <runtime seconds>. Default is %d seconds.\n"
+				    "-m adds calls to migrate_pages while vCPUs are running."
+				    " Default is no migrations.\n"
+				    "-d <delay microseconds> - delay between migrate_pages() calls."
+				    " Default is %d microseconds.",
+				    DEFAULT_RUN_SECS, DEFAULT_DELAY_USECS);
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int r;
+	int wait_secs;
+	const int max_halter_wait = 10;
+	int run_secs = 0;
+	int delay_usecs = 0;
+	struct test_data_page *data;
+	vm_vaddr_t test_data_page_vaddr;
+	bool migrate = false;
+	pthread_t threads[2];
+	struct thread_params params[2];
+	struct kvm_vm *vm;
+	uint64_t *pipis_rcvd;
+
+	get_cmdline_args(argc, argv, &run_secs, &migrate, &delay_usecs);
+	if (run_secs <= 0)
+		run_secs = DEFAULT_RUN_SECS;
+	if (delay_usecs <= 0)
+		delay_usecs = DEFAULT_DELAY_USECS;
+
+	vm = vm_create_with_one_vcpu(&params[0].vcpu, halter_guest_code);
+
+	vm_install_exception_handler(vm, IPI_VECTOR, guest_ipi_handler);
+
+	virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
+
+	params[1].vcpu = vm_vcpu_add(vm, 1, sender_guest_code);
+
+	test_data_page_vaddr = vm_vaddr_alloc_page(vm);
+	data = addr_gva2hva(vm, test_data_page_vaddr);
+	memset(data, 0, sizeof(*data));
+	params[0].data = data;
+	params[1].data = data;
+
+	vcpu_args_set(params[0].vcpu, 1, test_data_page_vaddr);
+	vcpu_args_set(params[1].vcpu, 1, test_data_page_vaddr);
+
+	pipis_rcvd = (uint64_t *)addr_gva2hva(vm, (uint64_t)&ipis_rcvd);
+	params[0].pipis_rcvd = pipis_rcvd;
+	params[1].pipis_rcvd = pipis_rcvd;
+
+	/* Start halter vCPU thread and wait for it to execute first HLT. */
+	r = pthread_create(&threads[0], NULL, vcpu_thread, &params[0]);
+	TEST_ASSERT(r == 0,
+		    "pthread_create halter failed errno=%d", errno);
+	fprintf(stderr, "Halter vCPU thread started\n");
+
+	wait_secs = 0;
+	while ((wait_secs < max_halter_wait) && !data->hlt_count) {
+		sleep(1);
+		wait_secs++;
+	}
+
+	TEST_ASSERT(data->hlt_count,
+		    "Halter vCPU did not execute first HLT within %d seconds",
+		    max_halter_wait);
+
+	fprintf(stderr,
+		"Halter vCPU thread reported its APIC ID: %u after %d seconds.\n",
+		data->halter_apic_id, wait_secs);
+
+	r = pthread_create(&threads[1], NULL, vcpu_thread, &params[1]);
+	TEST_ASSERT(r == 0, "pthread_create sender failed errno=%d", errno);
+
+	fprintf(stderr,
+		"IPI sender vCPU thread started. Letting vCPUs run for %d seconds.\n",
+		run_secs);
+
+	if (!migrate)
+		sleep(run_secs);
+	else
+		do_migrations(data, run_secs, delay_usecs, pipis_rcvd);
+
+	/*
+	 * Cancel threads and wait for them to stop.
+	 */
+	cancel_join_vcpu_thread(threads[0], params[0].vcpu);
+	cancel_join_vcpu_thread(threads[1], params[1].vcpu);
+
+	/*
+	 * If the host support Idle HLT, i.e. KVM *might* be using Idle HLT,
+	 * then the number of HLT exits may be less than the number of HLTs
+	 * that were executed, as Idle HLT elides the exit if the vCPU has an
+	 * unmasked, pending IRQ (or NMI).
+	 */
+	if (this_cpu_has(X86_FEATURE_IDLE_HLT))
+		TEST_ASSERT(data->hlt_count >= vcpu_get_stat(params[0].vcpu, halt_exits),
+			    "HLT insns = %lu, HLT exits = %lu",
+			    data->hlt_count, vcpu_get_stat(params[0].vcpu, halt_exits));
+	else
+		TEST_ASSERT_EQ(data->hlt_count, vcpu_get_stat(params[0].vcpu, halt_exits));
+
+	fprintf(stderr,
+		"Test successful after running for %d seconds.\n"
+		"Sending vCPU sent %lu IPIs to halting vCPU\n"
+		"Halting vCPU halted %lu times, woke %lu times, received %lu IPIs.\n"
+		"Halter APIC ID=%#x\n"
+		"Sender ICR value=%#x ICR2 value=%#x\n"
+		"Halter TPR=%#x PPR=%#x LVR=%#x\n"
+		"Migrations attempted: %lu\n"
+		"Migrations completed: %lu\n",
+		run_secs, data->ipis_sent,
+		data->hlt_count, data->wake_count, *pipis_rcvd,
+		data->halter_apic_id,
+		data->icr, data->icr2,
+		data->halter_tpr, data->halter_ppr, data->halter_lvr,
+		data->migrations_attempted, data->migrations_completed);
+
+	kvm_vm_free(vm);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/xapic_state_test.c b/tools/testing/selftests/kvm/x86/xapic_state_test.c
new file mode 100644
index 000000000000..3b4814c55722
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xapic_state_test.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "apic.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "test_util.h"
+
+struct xapic_vcpu {
+	struct kvm_vcpu *vcpu;
+	bool is_x2apic;
+	bool has_xavic_errata;
+};
+
+static void xapic_guest_code(void)
+{
+	cli();
+
+	xapic_enable();
+
+	while (1) {
+		uint64_t val = (u64)xapic_read_reg(APIC_IRR) |
+			       (u64)xapic_read_reg(APIC_IRR + 0x10) << 32;
+
+		xapic_write_reg(APIC_ICR2, val >> 32);
+		xapic_write_reg(APIC_ICR, val);
+		GUEST_SYNC(val);
+	}
+}
+
+#define X2APIC_RSVD_BITS_MASK  (GENMASK_ULL(31, 20) | \
+				GENMASK_ULL(17, 16) | \
+				GENMASK_ULL(13, 13))
+
+static void x2apic_guest_code(void)
+{
+	cli();
+
+	x2apic_enable();
+
+	do {
+		uint64_t val = x2apic_read_reg(APIC_IRR) |
+			       x2apic_read_reg(APIC_IRR + 0x10) << 32;
+
+		if (val & X2APIC_RSVD_BITS_MASK) {
+			x2apic_write_reg_fault(APIC_ICR, val);
+		} else {
+			x2apic_write_reg(APIC_ICR, val);
+			GUEST_ASSERT_EQ(x2apic_read_reg(APIC_ICR), val);
+		}
+		GUEST_SYNC(val);
+	} while (1);
+}
+
+static void ____test_icr(struct xapic_vcpu *x, uint64_t val)
+{
+	struct kvm_vcpu *vcpu = x->vcpu;
+	struct kvm_lapic_state xapic;
+	struct ucall uc;
+	uint64_t icr;
+
+	/*
+	 * Tell the guest what ICR value to write.  Use the IRR to pass info,
+	 * all bits are valid and should not be modified by KVM (ignoring the
+	 * fact that vectors 0-15 are technically illegal).
+	 */
+	vcpu_ioctl(vcpu, KVM_GET_LAPIC, &xapic);
+	*((u32 *)&xapic.regs[APIC_IRR]) = val;
+	*((u32 *)&xapic.regs[APIC_IRR + 0x10]) = val >> 32;
+	vcpu_ioctl(vcpu, KVM_SET_LAPIC, &xapic);
+
+	vcpu_run(vcpu);
+	TEST_ASSERT_EQ(get_ucall(vcpu, &uc), UCALL_SYNC);
+	TEST_ASSERT_EQ(uc.args[1], val);
+
+	vcpu_ioctl(vcpu, KVM_GET_LAPIC, &xapic);
+	icr = (u64)(*((u32 *)&xapic.regs[APIC_ICR])) |
+	      (u64)(*((u32 *)&xapic.regs[APIC_ICR2])) << 32;
+	if (!x->is_x2apic) {
+		if (!x->has_xavic_errata)
+			val &= (-1u | (0xffull << (32 + 24)));
+	} else if (val & X2APIC_RSVD_BITS_MASK) {
+		return;
+	}
+
+	if (x->has_xavic_errata)
+		TEST_ASSERT_EQ(icr & ~APIC_ICR_BUSY, val & ~APIC_ICR_BUSY);
+	else
+		TEST_ASSERT_EQ(icr, val & ~APIC_ICR_BUSY);
+}
+
+static void __test_icr(struct xapic_vcpu *x, uint64_t val)
+{
+	/*
+	 * The BUSY bit is reserved on both AMD and Intel, but only AMD treats
+	 * it is as _must_ be zero.  Intel simply ignores the bit.  Don't test
+	 * the BUSY bit for x2APIC, as there is no single correct behavior.
+	 */
+	if (!x->is_x2apic)
+		____test_icr(x, val | APIC_ICR_BUSY);
+
+	____test_icr(x, val & ~(u64)APIC_ICR_BUSY);
+}
+
+static void test_icr(struct xapic_vcpu *x)
+{
+	struct kvm_vcpu *vcpu = x->vcpu;
+	uint64_t icr, i, j;
+
+	icr = APIC_DEST_SELF | APIC_INT_ASSERT | APIC_DM_FIXED;
+	for (i = 0; i <= 0xff; i++)
+		__test_icr(x, icr | i);
+
+	icr = APIC_INT_ASSERT | APIC_DM_FIXED;
+	for (i = 0; i <= 0xff; i++)
+		__test_icr(x, icr | i);
+
+	/*
+	 * Send all flavors of IPIs to non-existent vCPUs. Arbitrarily use
+	 * vector 0xff.
+	 */
+	icr = APIC_INT_ASSERT | 0xff;
+	for (i = 0; i < 0xff; i++) {
+		if (i == vcpu->id)
+			continue;
+		for (j = 0; j < 8; j++)
+			__test_icr(x, i << (32 + 24) | icr | (j << 8));
+	}
+
+	/* And again with a shorthand destination for all types of IPIs. */
+	icr = APIC_DEST_ALLBUT | APIC_INT_ASSERT;
+	for (i = 0; i < 8; i++)
+		__test_icr(x, icr | (i << 8));
+
+	/* And a few garbage value, just make sure it's an IRQ (blocked). */
+	__test_icr(x, 0xa5a5a5a5a5a5a5a5 & ~APIC_DM_FIXED_MASK);
+	__test_icr(x, 0x5a5a5a5a5a5a5a5a & ~APIC_DM_FIXED_MASK);
+	__test_icr(x, -1ull & ~APIC_DM_FIXED_MASK);
+}
+
+static void __test_apic_id(struct kvm_vcpu *vcpu, uint64_t apic_base)
+{
+	uint32_t apic_id, expected;
+	struct kvm_lapic_state xapic;
+
+	vcpu_set_msr(vcpu, MSR_IA32_APICBASE, apic_base);
+
+	vcpu_ioctl(vcpu, KVM_GET_LAPIC, &xapic);
+
+	expected = apic_base & X2APIC_ENABLE ? vcpu->id : vcpu->id << 24;
+	apic_id = *((u32 *)&xapic.regs[APIC_ID]);
+
+	TEST_ASSERT(apic_id == expected,
+		    "APIC_ID not set back to %s format; wanted = %x, got = %x",
+		    (apic_base & X2APIC_ENABLE) ? "x2APIC" : "xAPIC",
+		    expected, apic_id);
+}
+
+/*
+ * Verify that KVM switches the APIC_ID between xAPIC and x2APIC when userspace
+ * stuffs MSR_IA32_APICBASE.  Setting the APIC_ID when x2APIC is enabled and
+ * when the APIC transitions for DISABLED to ENABLED is architectural behavior
+ * (on Intel), whereas the x2APIC => xAPIC transition behavior is KVM ABI since
+ * attempted to transition from x2APIC to xAPIC without disabling the APIC is
+ * architecturally disallowed.
+ */
+static void test_apic_id(void)
+{
+	const uint32_t NR_VCPUS = 3;
+	struct kvm_vcpu *vcpus[NR_VCPUS];
+	uint64_t apic_base;
+	struct kvm_vm *vm;
+	int i;
+
+	vm = vm_create_with_vcpus(NR_VCPUS, NULL, vcpus);
+	vm_enable_cap(vm, KVM_CAP_X2APIC_API, KVM_X2APIC_API_USE_32BIT_IDS);
+
+	for (i = 0; i < NR_VCPUS; i++) {
+		apic_base = vcpu_get_msr(vcpus[i], MSR_IA32_APICBASE);
+
+		TEST_ASSERT(apic_base & MSR_IA32_APICBASE_ENABLE,
+			    "APIC not in ENABLED state at vCPU RESET");
+		TEST_ASSERT(!(apic_base & X2APIC_ENABLE),
+			    "APIC not in xAPIC mode at vCPU RESET");
+
+		__test_apic_id(vcpus[i], apic_base);
+		__test_apic_id(vcpus[i], apic_base | X2APIC_ENABLE);
+		__test_apic_id(vcpus[i], apic_base);
+	}
+
+	kvm_vm_free(vm);
+}
+
+static void test_x2apic_id(void)
+{
+	struct kvm_lapic_state lapic = {};
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+	int i;
+
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+	vcpu_set_msr(vcpu, MSR_IA32_APICBASE, MSR_IA32_APICBASE_ENABLE | X2APIC_ENABLE);
+
+	/*
+	 * Try stuffing a modified x2APIC ID, KVM should ignore the value and
+	 * always return the vCPU's default/readonly x2APIC ID.
+	 */
+	for (i = 0; i <= 0xff; i++) {
+		*(u32 *)(lapic.regs + APIC_ID) = i << 24;
+		*(u32 *)(lapic.regs + APIC_SPIV) = APIC_SPIV_APIC_ENABLED;
+		vcpu_ioctl(vcpu, KVM_SET_LAPIC, &lapic);
+
+		vcpu_ioctl(vcpu, KVM_GET_LAPIC, &lapic);
+		TEST_ASSERT(*((u32 *)&lapic.regs[APIC_ID]) == vcpu->id << 24,
+			    "x2APIC ID should be fully readonly");
+	}
+
+	kvm_vm_free(vm);
+}
+
+int main(int argc, char *argv[])
+{
+	struct xapic_vcpu x = {
+		.vcpu = NULL,
+		.is_x2apic = true,
+	};
+	struct kvm_vm *vm;
+
+	vm = vm_create_with_one_vcpu(&x.vcpu, x2apic_guest_code);
+	test_icr(&x);
+	kvm_vm_free(vm);
+
+	/*
+	 * Use a second VM for the xAPIC test so that x2APIC can be hidden from
+	 * the guest in order to test AVIC.  KVM disallows changing CPUID after
+	 * KVM_RUN and AVIC is disabled if _any_ vCPU is allowed to use x2APIC.
+	 */
+	vm = vm_create_with_one_vcpu(&x.vcpu, xapic_guest_code);
+	x.is_x2apic = false;
+
+	/*
+	 * AMD's AVIC implementation is buggy (fails to clear the ICR BUSY bit),
+	 * and also diverges from KVM with respect to ICR2[23:0] (KVM and Intel
+	 * drops writes, AMD does not).  Account for the errata when checking
+	 * that KVM reads back what was written.
+	 */
+	x.has_xavic_errata = host_cpu_is_amd &&
+			     get_kvm_amd_param_bool("avic");
+
+	vcpu_clear_cpuid_feature(x.vcpu, X86_FEATURE_X2APIC);
+
+	virt_pg_map(vm, APIC_DEFAULT_GPA, APIC_DEFAULT_GPA);
+	test_icr(&x);
+	kvm_vm_free(vm);
+
+	test_apic_id();
+	test_x2apic_id();
+}
diff --git a/tools/testing/selftests/kvm/x86/xcr0_cpuid_test.c b/tools/testing/selftests/kvm/x86/xcr0_cpuid_test.c
new file mode 100644
index 000000000000..d038c1571729
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xcr0_cpuid_test.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * XCR0 cpuid test
+ *
+ * Copyright (C) 2022, Google LLC.
+ */
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+
+#include "kvm_util.h"
+#include "processor.h"
+
+/*
+ * Assert that architectural dependency rules are satisfied, e.g. that AVX is
+ * supported if and only if SSE is supported.
+ */
+#define ASSERT_XFEATURE_DEPENDENCIES(supported_xcr0, xfeatures, dependencies)		\
+do {											\
+	uint64_t __supported = (supported_xcr0) & ((xfeatures) | (dependencies));	\
+											\
+	__GUEST_ASSERT((__supported & (xfeatures)) != (xfeatures) ||			\
+		       __supported == ((xfeatures) | (dependencies)),			\
+		       "supported = 0x%lx, xfeatures = 0x%llx, dependencies = 0x%llx",	\
+		       __supported, (xfeatures), (dependencies));			\
+} while (0)
+
+/*
+ * Assert that KVM reports a sane, usable as-is XCR0.  Architecturally, a CPU
+ * isn't strictly required to _support_ all XFeatures related to a feature, but
+ * at the same time XSETBV will #GP if bundled XFeatures aren't enabled and
+ * disabled coherently.  E.g. a CPU can technically enumerate supported for
+ * XTILE_CFG but not XTILE_DATA, but attempting to enable XTILE_CFG without
+ * XTILE_DATA will #GP.
+ */
+#define ASSERT_ALL_OR_NONE_XFEATURE(supported_xcr0, xfeatures)		\
+do {									\
+	uint64_t __supported = (supported_xcr0) & (xfeatures);		\
+									\
+	__GUEST_ASSERT(!__supported || __supported == (xfeatures),	\
+		       "supported = 0x%lx, xfeatures = 0x%llx",		\
+		       __supported, (xfeatures));			\
+} while (0)
+
+static void guest_code(void)
+{
+	uint64_t initial_xcr0;
+	uint64_t supported_xcr0;
+	int i, vector;
+
+	set_cr4(get_cr4() | X86_CR4_OSXSAVE);
+
+	initial_xcr0 = xgetbv(0);
+	supported_xcr0 = this_cpu_supported_xcr0();
+
+	GUEST_ASSERT(initial_xcr0 == supported_xcr0);
+
+	/* Check AVX */
+	ASSERT_XFEATURE_DEPENDENCIES(supported_xcr0,
+				     XFEATURE_MASK_YMM,
+				     XFEATURE_MASK_SSE);
+
+	/* Check MPX */
+	ASSERT_ALL_OR_NONE_XFEATURE(supported_xcr0,
+				    XFEATURE_MASK_BNDREGS | XFEATURE_MASK_BNDCSR);
+
+	/* Check AVX-512 */
+	ASSERT_XFEATURE_DEPENDENCIES(supported_xcr0,
+				     XFEATURE_MASK_AVX512,
+				     XFEATURE_MASK_SSE | XFEATURE_MASK_YMM);
+	ASSERT_ALL_OR_NONE_XFEATURE(supported_xcr0,
+				    XFEATURE_MASK_AVX512);
+
+	/* Check AMX */
+	ASSERT_ALL_OR_NONE_XFEATURE(supported_xcr0,
+				    XFEATURE_MASK_XTILE);
+
+	vector = xsetbv_safe(0, XFEATURE_MASK_FP);
+	__GUEST_ASSERT(!vector,
+		       "Expected success on XSETBV(FP), got %s",
+		       ex_str(vector));
+
+	vector = xsetbv_safe(0, supported_xcr0);
+	__GUEST_ASSERT(!vector,
+		       "Expected success on XSETBV(0x%lx), got %s",
+		       supported_xcr0, ex_str(vector));
+
+	for (i = 0; i < 64; i++) {
+		if (supported_xcr0 & BIT_ULL(i))
+			continue;
+
+		vector = xsetbv_safe(0, supported_xcr0 | BIT_ULL(i));
+		__GUEST_ASSERT(vector == GP_VECTOR,
+			       "Expected #GP on XSETBV(0x%llx), supported XCR0 = %lx, got %s",
+			       BIT_ULL(i), supported_xcr0, ex_str(vector));
+	}
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_vcpu *vcpu;
+	struct kvm_run *run;
+	struct kvm_vm *vm;
+	struct ucall uc;
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XSAVE));
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	run = vcpu->run;
+
+	while (1) {
+		vcpu_run(vcpu);
+
+		TEST_ASSERT(run->exit_reason == KVM_EXIT_IO,
+			    "Unexpected exit reason: %u (%s),",
+			    run->exit_reason,
+			    exit_reason_str(run->exit_reason));
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall %lu", uc.cmd);
+		}
+	}
+
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/xen_shinfo_test.c b/tools/testing/selftests/kvm/x86/xen_shinfo_test.c
new file mode 100644
index 000000000000..23909b501ac2
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xen_shinfo_test.c
@@ -0,0 +1,1145 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2021 Amazon.com, Inc. or its affiliates.
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+
+#include <stdint.h>
+#include <time.h>
+#include <sched.h>
+#include <signal.h>
+#include <pthread.h>
+
+#include <sys/eventfd.h>
+
+#define SHINFO_REGION_GVA	0xc0000000ULL
+#define SHINFO_REGION_GPA	0xc0000000ULL
+#define SHINFO_REGION_SLOT	10
+
+#define DUMMY_REGION_GPA	(SHINFO_REGION_GPA + (3 * PAGE_SIZE))
+#define DUMMY_REGION_SLOT	11
+
+#define DUMMY_REGION_GPA_2	(SHINFO_REGION_GPA + (4 * PAGE_SIZE))
+#define DUMMY_REGION_SLOT_2	12
+
+#define SHINFO_ADDR	(SHINFO_REGION_GPA)
+#define VCPU_INFO_ADDR	(SHINFO_REGION_GPA + 0x40)
+#define PVTIME_ADDR	(SHINFO_REGION_GPA + PAGE_SIZE)
+#define RUNSTATE_ADDR	(SHINFO_REGION_GPA + PAGE_SIZE + PAGE_SIZE - 15)
+
+#define SHINFO_VADDR	(SHINFO_REGION_GVA)
+#define VCPU_INFO_VADDR	(SHINFO_REGION_GVA + 0x40)
+#define RUNSTATE_VADDR	(SHINFO_REGION_GVA + PAGE_SIZE + PAGE_SIZE - 15)
+
+#define EVTCHN_VECTOR	0x10
+
+#define EVTCHN_TEST1 15
+#define EVTCHN_TEST2 66
+#define EVTCHN_TIMER 13
+
+enum {
+	TEST_INJECT_VECTOR = 0,
+	TEST_RUNSTATE_runnable,
+	TEST_RUNSTATE_blocked,
+	TEST_RUNSTATE_offline,
+	TEST_RUNSTATE_ADJUST,
+	TEST_RUNSTATE_DATA,
+	TEST_STEAL_TIME,
+	TEST_EVTCHN_MASKED,
+	TEST_EVTCHN_UNMASKED,
+	TEST_EVTCHN_SLOWPATH,
+	TEST_EVTCHN_SEND_IOCTL,
+	TEST_EVTCHN_HCALL,
+	TEST_EVTCHN_HCALL_SLOWPATH,
+	TEST_EVTCHN_HCALL_EVENTFD,
+	TEST_TIMER_SETUP,
+	TEST_TIMER_WAIT,
+	TEST_TIMER_RESTORE,
+	TEST_POLL_READY,
+	TEST_POLL_TIMEOUT,
+	TEST_POLL_MASKED,
+	TEST_POLL_WAKE,
+	SET_VCPU_INFO,
+	TEST_TIMER_PAST,
+	TEST_LOCKING_SEND_RACE,
+	TEST_LOCKING_POLL_RACE,
+	TEST_LOCKING_POLL_TIMEOUT,
+	TEST_DONE,
+
+	TEST_GUEST_SAW_IRQ,
+};
+
+#define XEN_HYPERCALL_MSR	0x40000000
+
+#define MIN_STEAL_TIME		50000
+
+#define SHINFO_RACE_TIMEOUT	2	/* seconds */
+
+#define __HYPERVISOR_set_timer_op	15
+#define __HYPERVISOR_sched_op		29
+#define __HYPERVISOR_event_channel_op	32
+
+#define SCHEDOP_poll			3
+
+#define EVTCHNOP_send			4
+
+#define EVTCHNSTAT_interdomain		2
+
+struct evtchn_send {
+	u32 port;
+};
+
+struct sched_poll {
+	u32 *ports;
+	unsigned int nr_ports;
+	u64 timeout;
+};
+
+struct pvclock_vcpu_time_info {
+	u32   version;
+	u32   pad0;
+	u64   tsc_timestamp;
+	u64   system_time;
+	u32   tsc_to_system_mul;
+	s8    tsc_shift;
+	u8    flags;
+	u8    pad[2];
+} __attribute__((__packed__)); /* 32 bytes */
+
+struct pvclock_wall_clock {
+	u32   version;
+	u32   sec;
+	u32   nsec;
+} __attribute__((__packed__));
+
+struct vcpu_runstate_info {
+	uint32_t state;
+	uint64_t state_entry_time;
+	uint64_t time[5]; /* Extra field for overrun check */
+};
+
+struct compat_vcpu_runstate_info {
+	uint32_t state;
+	uint64_t state_entry_time;
+	uint64_t time[5];
+} __attribute__((__packed__));
+
+struct arch_vcpu_info {
+	unsigned long cr2;
+	unsigned long pad; /* sizeof(vcpu_info_t) == 64 */
+};
+
+struct vcpu_info {
+	uint8_t evtchn_upcall_pending;
+	uint8_t evtchn_upcall_mask;
+	unsigned long evtchn_pending_sel;
+	struct arch_vcpu_info arch;
+	struct pvclock_vcpu_time_info time;
+}; /* 64 bytes (x86) */
+
+struct shared_info {
+	struct vcpu_info vcpu_info[32];
+	unsigned long evtchn_pending[64];
+	unsigned long evtchn_mask[64];
+	struct pvclock_wall_clock wc;
+	uint32_t wc_sec_hi;
+	/* arch_shared_info here */
+};
+
+#define RUNSTATE_running  0
+#define RUNSTATE_runnable 1
+#define RUNSTATE_blocked  2
+#define RUNSTATE_offline  3
+
+static const char *runstate_names[] = {
+	"running",
+	"runnable",
+	"blocked",
+	"offline"
+};
+
+struct {
+	struct kvm_irq_routing info;
+	struct kvm_irq_routing_entry entries[2];
+} irq_routes;
+
+static volatile bool guest_saw_irq;
+
+static void evtchn_handler(struct ex_regs *regs)
+{
+	struct vcpu_info *vi = (void *)VCPU_INFO_VADDR;
+
+	vcpu_arch_put_guest(vi->evtchn_upcall_pending, 0);
+	vcpu_arch_put_guest(vi->evtchn_pending_sel, 0);
+	guest_saw_irq = true;
+
+	GUEST_SYNC(TEST_GUEST_SAW_IRQ);
+}
+
+static void guest_wait_for_irq(void)
+{
+	while (!guest_saw_irq)
+		__asm__ __volatile__ ("rep nop" : : : "memory");
+	guest_saw_irq = false;
+}
+
+static void guest_code(void)
+{
+	struct vcpu_runstate_info *rs = (void *)RUNSTATE_VADDR;
+	int i;
+
+	sti_nop();
+
+	/* Trigger an interrupt injection */
+	GUEST_SYNC(TEST_INJECT_VECTOR);
+
+	guest_wait_for_irq();
+
+	/* Test having the host set runstates manually */
+	GUEST_SYNC(TEST_RUNSTATE_runnable);
+	GUEST_ASSERT(rs->time[RUNSTATE_runnable] != 0);
+	GUEST_ASSERT(rs->state == 0);
+
+	GUEST_SYNC(TEST_RUNSTATE_blocked);
+	GUEST_ASSERT(rs->time[RUNSTATE_blocked] != 0);
+	GUEST_ASSERT(rs->state == 0);
+
+	GUEST_SYNC(TEST_RUNSTATE_offline);
+	GUEST_ASSERT(rs->time[RUNSTATE_offline] != 0);
+	GUEST_ASSERT(rs->state == 0);
+
+	/* Test runstate time adjust */
+	GUEST_SYNC(TEST_RUNSTATE_ADJUST);
+	GUEST_ASSERT(rs->time[RUNSTATE_blocked] == 0x5a);
+	GUEST_ASSERT(rs->time[RUNSTATE_offline] == 0x6b6b);
+
+	/* Test runstate time set */
+	GUEST_SYNC(TEST_RUNSTATE_DATA);
+	GUEST_ASSERT(rs->state_entry_time >= 0x8000);
+	GUEST_ASSERT(rs->time[RUNSTATE_runnable] == 0);
+	GUEST_ASSERT(rs->time[RUNSTATE_blocked] == 0x6b6b);
+	GUEST_ASSERT(rs->time[RUNSTATE_offline] == 0x5a);
+
+	/* sched_yield() should result in some 'runnable' time */
+	GUEST_SYNC(TEST_STEAL_TIME);
+	GUEST_ASSERT(rs->time[RUNSTATE_runnable] >= MIN_STEAL_TIME);
+
+	/* Attempt to deliver a *masked* interrupt */
+	GUEST_SYNC(TEST_EVTCHN_MASKED);
+
+	/* Wait until we see the bit set */
+	struct shared_info *si = (void *)SHINFO_VADDR;
+	while (!si->evtchn_pending[0])
+		__asm__ __volatile__ ("rep nop" : : : "memory");
+
+	/* Now deliver an *unmasked* interrupt */
+	GUEST_SYNC(TEST_EVTCHN_UNMASKED);
+
+	guest_wait_for_irq();
+
+	/* Change memslots and deliver an interrupt */
+	GUEST_SYNC(TEST_EVTCHN_SLOWPATH);
+
+	guest_wait_for_irq();
+
+	/* Deliver event channel with KVM_XEN_HVM_EVTCHN_SEND */
+	GUEST_SYNC(TEST_EVTCHN_SEND_IOCTL);
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_EVTCHN_HCALL);
+
+	/* Our turn. Deliver event channel (to ourselves) with
+	 * EVTCHNOP_send hypercall. */
+	struct evtchn_send s = { .port = 127 };
+	xen_hypercall(__HYPERVISOR_event_channel_op, EVTCHNOP_send, &s);
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_EVTCHN_HCALL_SLOWPATH);
+
+	/*
+	 * Same again, but this time the host has messed with memslots so it
+	 * should take the slow path in kvm_xen_set_evtchn().
+	 */
+	xen_hypercall(__HYPERVISOR_event_channel_op, EVTCHNOP_send, &s);
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_EVTCHN_HCALL_EVENTFD);
+
+	/* Deliver "outbound" event channel to an eventfd which
+	 * happens to be one of our own irqfds. */
+	s.port = 197;
+	xen_hypercall(__HYPERVISOR_event_channel_op, EVTCHNOP_send, &s);
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_TIMER_SETUP);
+
+	/* Set a timer 100ms in the future. */
+	xen_hypercall(__HYPERVISOR_set_timer_op,
+		      rs->state_entry_time + 100000000, NULL);
+
+	GUEST_SYNC(TEST_TIMER_WAIT);
+
+	/* Now wait for the timer */
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_TIMER_RESTORE);
+
+	/* The host has 'restored' the timer. Just wait for it. */
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_POLL_READY);
+
+	/* Poll for an event channel port which is already set */
+	u32 ports[1] = { EVTCHN_TIMER };
+	struct sched_poll p = {
+		.ports = ports,
+		.nr_ports = 1,
+		.timeout = 0,
+	};
+
+	xen_hypercall(__HYPERVISOR_sched_op, SCHEDOP_poll, &p);
+
+	GUEST_SYNC(TEST_POLL_TIMEOUT);
+
+	/* Poll for an unset port and wait for the timeout. */
+	p.timeout = 100000000;
+	xen_hypercall(__HYPERVISOR_sched_op, SCHEDOP_poll, &p);
+
+	GUEST_SYNC(TEST_POLL_MASKED);
+
+	/* A timer will wake the masked port we're waiting on, while we poll */
+	p.timeout = 0;
+	xen_hypercall(__HYPERVISOR_sched_op, SCHEDOP_poll, &p);
+
+	GUEST_SYNC(TEST_POLL_WAKE);
+
+	/* Set the vcpu_info to point at exactly the place it already is to
+	 * make sure the attribute is functional. */
+	GUEST_SYNC(SET_VCPU_INFO);
+
+	/* A timer wake an *unmasked* port which should wake us with an
+	 * actual interrupt, while we're polling on a different port. */
+	ports[0]++;
+	p.timeout = 0;
+	xen_hypercall(__HYPERVISOR_sched_op, SCHEDOP_poll, &p);
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_TIMER_PAST);
+
+	/* Timer should have fired already */
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_LOCKING_SEND_RACE);
+	/* Racing host ioctls */
+
+	guest_wait_for_irq();
+
+	GUEST_SYNC(TEST_LOCKING_POLL_RACE);
+	/* Racing vmcall against host ioctl */
+
+	ports[0] = 0;
+
+	p = (struct sched_poll) {
+		.ports = ports,
+		.nr_ports = 1,
+		.timeout = 0
+	};
+
+wait_for_timer:
+	/*
+	 * Poll for a timer wake event while the worker thread is mucking with
+	 * the shared info.  KVM XEN drops timer IRQs if the shared info is
+	 * invalid when the timer expires.  Arbitrarily poll 100 times before
+	 * giving up and asking the VMM to re-arm the timer.  100 polls should
+	 * consume enough time to beat on KVM without taking too long if the
+	 * timer IRQ is dropped due to an invalid event channel.
+	 */
+	for (i = 0; i < 100 && !guest_saw_irq; i++)
+		__xen_hypercall(__HYPERVISOR_sched_op, SCHEDOP_poll, &p);
+
+	/*
+	 * Re-send the timer IRQ if it was (likely) dropped due to the timer
+	 * expiring while the event channel was invalid.
+	 */
+	if (!guest_saw_irq) {
+		GUEST_SYNC(TEST_LOCKING_POLL_TIMEOUT);
+		goto wait_for_timer;
+	}
+	guest_saw_irq = false;
+
+	GUEST_SYNC(TEST_DONE);
+}
+
+static struct shared_info *shinfo;
+static struct vcpu_info *vinfo;
+static struct kvm_vcpu *vcpu;
+
+static void handle_alrm(int sig)
+{
+	if (vinfo)
+		printf("evtchn_upcall_pending 0x%x\n", vinfo->evtchn_upcall_pending);
+	vcpu_dump(stdout, vcpu, 0);
+	TEST_FAIL("IRQ delivery timed out");
+}
+
+static void *juggle_shinfo_state(void *arg)
+{
+	struct kvm_vm *vm = (struct kvm_vm *)arg;
+
+	struct kvm_xen_hvm_attr cache_activate_gfn = {
+		.type = KVM_XEN_ATTR_TYPE_SHARED_INFO,
+		.u.shared_info.gfn = SHINFO_REGION_GPA / PAGE_SIZE
+	};
+
+	struct kvm_xen_hvm_attr cache_deactivate_gfn = {
+		.type = KVM_XEN_ATTR_TYPE_SHARED_INFO,
+		.u.shared_info.gfn = KVM_XEN_INVALID_GFN
+	};
+
+	struct kvm_xen_hvm_attr cache_activate_hva = {
+		.type = KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA,
+		.u.shared_info.hva = (unsigned long)shinfo
+	};
+
+	struct kvm_xen_hvm_attr cache_deactivate_hva = {
+		.type = KVM_XEN_ATTR_TYPE_SHARED_INFO,
+		.u.shared_info.hva = 0
+	};
+
+	int xen_caps = kvm_check_cap(KVM_CAP_XEN_HVM);
+
+	for (;;) {
+		__vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &cache_activate_gfn);
+		pthread_testcancel();
+		__vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &cache_deactivate_gfn);
+
+		if (xen_caps & KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA) {
+			__vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &cache_activate_hva);
+			pthread_testcancel();
+			__vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &cache_deactivate_hva);
+		}
+	}
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	struct kvm_xen_hvm_attr evt_reset;
+	struct kvm_vm *vm;
+	pthread_t thread;
+	bool verbose;
+	int ret;
+
+	verbose = argc > 1 && (!strncmp(argv[1], "-v", 3) ||
+			       !strncmp(argv[1], "--verbose", 10));
+
+	int xen_caps = kvm_check_cap(KVM_CAP_XEN_HVM);
+	TEST_REQUIRE(xen_caps & KVM_XEN_HVM_CONFIG_SHARED_INFO);
+
+	bool do_runstate_tests = !!(xen_caps & KVM_XEN_HVM_CONFIG_RUNSTATE);
+	bool do_runstate_flag = !!(xen_caps & KVM_XEN_HVM_CONFIG_RUNSTATE_UPDATE_FLAG);
+	bool do_eventfd_tests = !!(xen_caps & KVM_XEN_HVM_CONFIG_EVTCHN_2LEVEL);
+	bool do_evtchn_tests = do_eventfd_tests && !!(xen_caps & KVM_XEN_HVM_CONFIG_EVTCHN_SEND);
+	bool has_shinfo_hva = !!(xen_caps & KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+
+	/* Map a region for the shared_info page */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    SHINFO_REGION_GPA, SHINFO_REGION_SLOT, 3, 0);
+	virt_map(vm, SHINFO_REGION_GVA, SHINFO_REGION_GPA, 3);
+
+	shinfo = addr_gpa2hva(vm, SHINFO_VADDR);
+
+	int zero_fd = open("/dev/zero", O_RDONLY);
+	TEST_ASSERT(zero_fd != -1, "Failed to open /dev/zero");
+
+	struct kvm_xen_hvm_config hvmc = {
+		.flags = KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL,
+		.msr = XEN_HYPERCALL_MSR,
+	};
+
+	/* Let the kernel know that we *will* use it for sending all
+	 * event channels, which lets it intercept SCHEDOP_poll */
+	if (do_evtchn_tests)
+		hvmc.flags |= KVM_XEN_HVM_CONFIG_EVTCHN_SEND;
+
+	vm_ioctl(vm, KVM_XEN_HVM_CONFIG, &hvmc);
+
+	struct kvm_xen_hvm_attr lm = {
+		.type = KVM_XEN_ATTR_TYPE_LONG_MODE,
+		.u.long_mode = 1,
+	};
+	vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &lm);
+
+	if (do_runstate_flag) {
+		struct kvm_xen_hvm_attr ruf = {
+			.type = KVM_XEN_ATTR_TYPE_RUNSTATE_UPDATE_FLAG,
+			.u.runstate_update_flag = 1,
+		};
+		vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &ruf);
+
+		ruf.u.runstate_update_flag = 0;
+		vm_ioctl(vm, KVM_XEN_HVM_GET_ATTR, &ruf);
+		TEST_ASSERT(ruf.u.runstate_update_flag == 1,
+			    "Failed to read back RUNSTATE_UPDATE_FLAG attr");
+	}
+
+	struct kvm_xen_hvm_attr ha = {};
+
+	if (has_shinfo_hva) {
+		ha.type = KVM_XEN_ATTR_TYPE_SHARED_INFO_HVA;
+		ha.u.shared_info.hva = (unsigned long)shinfo;
+	} else {
+		ha.type = KVM_XEN_ATTR_TYPE_SHARED_INFO;
+		ha.u.shared_info.gfn = SHINFO_ADDR / PAGE_SIZE;
+	}
+
+	vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &ha);
+
+	/*
+	 * Test what happens when the HVA of the shinfo page is remapped after
+	 * the kernel has a reference to it. But make sure we copy the clock
+	 * info over since that's only set at setup time, and we test it later.
+	 */
+	struct pvclock_wall_clock wc_copy = shinfo->wc;
+	void *m = mmap(shinfo, PAGE_SIZE, PROT_READ|PROT_WRITE, MAP_FIXED|MAP_PRIVATE, zero_fd, 0);
+	TEST_ASSERT(m == shinfo, "Failed to map /dev/zero over shared info");
+	shinfo->wc = wc_copy;
+
+	struct kvm_xen_vcpu_attr vi = {
+		.type = KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO,
+		.u.gpa = VCPU_INFO_ADDR,
+	};
+	vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &vi);
+
+	struct kvm_xen_vcpu_attr pvclock = {
+		.type = KVM_XEN_VCPU_ATTR_TYPE_VCPU_TIME_INFO,
+		.u.gpa = PVTIME_ADDR,
+	};
+	vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &pvclock);
+
+	struct kvm_xen_hvm_attr vec = {
+		.type = KVM_XEN_ATTR_TYPE_UPCALL_VECTOR,
+		.u.vector = EVTCHN_VECTOR,
+	};
+	vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &vec);
+
+	vm_install_exception_handler(vm, EVTCHN_VECTOR, evtchn_handler);
+
+	if (do_runstate_tests) {
+		struct kvm_xen_vcpu_attr st = {
+			.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR,
+			.u.gpa = RUNSTATE_ADDR,
+		};
+		vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &st);
+	}
+
+	int irq_fd[2] = { -1, -1 };
+
+	if (do_eventfd_tests) {
+		irq_fd[0] = kvm_new_eventfd();
+		irq_fd[1] = kvm_new_eventfd();
+
+		irq_routes.info.nr = 2;
+
+		irq_routes.entries[0].gsi = 32;
+		irq_routes.entries[0].type = KVM_IRQ_ROUTING_XEN_EVTCHN;
+		irq_routes.entries[0].u.xen_evtchn.port = EVTCHN_TEST1;
+		irq_routes.entries[0].u.xen_evtchn.vcpu = vcpu->id;
+		irq_routes.entries[0].u.xen_evtchn.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL;
+
+		irq_routes.entries[1].gsi = 33;
+		irq_routes.entries[1].type = KVM_IRQ_ROUTING_XEN_EVTCHN;
+		irq_routes.entries[1].u.xen_evtchn.port = EVTCHN_TEST2;
+		irq_routes.entries[1].u.xen_evtchn.vcpu = vcpu->id;
+		irq_routes.entries[1].u.xen_evtchn.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL;
+
+		vm_ioctl(vm, KVM_SET_GSI_ROUTING, &irq_routes.info);
+
+		kvm_assign_irqfd(vm, 32, irq_fd[0]);
+		kvm_assign_irqfd(vm, 33, irq_fd[1]);
+
+		struct sigaction sa = { };
+		sa.sa_handler = handle_alrm;
+		sigaction(SIGALRM, &sa, NULL);
+	}
+
+	struct kvm_xen_vcpu_attr tmr = {
+		.type = KVM_XEN_VCPU_ATTR_TYPE_TIMER,
+		.u.timer.port = EVTCHN_TIMER,
+		.u.timer.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL,
+		.u.timer.expires_ns = 0
+	};
+
+	if (do_evtchn_tests) {
+		struct kvm_xen_hvm_attr inj = {
+			.type = KVM_XEN_ATTR_TYPE_EVTCHN,
+			.u.evtchn.send_port = 127,
+			.u.evtchn.type = EVTCHNSTAT_interdomain,
+			.u.evtchn.flags = 0,
+			.u.evtchn.deliver.port.port = EVTCHN_TEST1,
+			.u.evtchn.deliver.port.vcpu = vcpu->id + 1,
+			.u.evtchn.deliver.port.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL,
+		};
+		vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &inj);
+
+		/* Test migration to a different vCPU */
+		inj.u.evtchn.flags = KVM_XEN_EVTCHN_UPDATE;
+		inj.u.evtchn.deliver.port.vcpu = vcpu->id;
+		vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &inj);
+
+		inj.u.evtchn.send_port = 197;
+		inj.u.evtchn.deliver.eventfd.port = 0;
+		inj.u.evtchn.deliver.eventfd.fd = irq_fd[1];
+		inj.u.evtchn.flags = 0;
+		vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &inj);
+
+		vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+	}
+	vinfo = addr_gpa2hva(vm, VCPU_INFO_VADDR);
+	vinfo->evtchn_upcall_pending = 0;
+
+	struct vcpu_runstate_info *rs = addr_gpa2hva(vm, RUNSTATE_ADDR);
+	rs->state = 0x5a;
+
+	bool evtchn_irq_expected = false;
+
+	for (;;) {
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC: {
+			struct kvm_xen_vcpu_attr rst;
+			long rundelay;
+
+			if (do_runstate_tests)
+				TEST_ASSERT(rs->state_entry_time == rs->time[0] +
+					    rs->time[1] + rs->time[2] + rs->time[3],
+					    "runstate times don't add up");
+
+			switch (uc.args[1]) {
+			case TEST_INJECT_VECTOR:
+				if (verbose)
+					printf("Delivering evtchn upcall\n");
+				evtchn_irq_expected = true;
+				vinfo->evtchn_upcall_pending = 1;
+				break;
+
+			case TEST_RUNSTATE_runnable...TEST_RUNSTATE_offline:
+				TEST_ASSERT(!evtchn_irq_expected, "Event channel IRQ not seen");
+				if (!do_runstate_tests)
+					goto done;
+				if (verbose)
+					printf("Testing runstate %s\n", runstate_names[uc.args[1]]);
+				rst.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_CURRENT;
+				rst.u.runstate.state = uc.args[1] + RUNSTATE_runnable -
+					TEST_RUNSTATE_runnable;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &rst);
+				break;
+
+			case TEST_RUNSTATE_ADJUST:
+				if (verbose)
+					printf("Testing RUNSTATE_ADJUST\n");
+				rst.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST;
+				memset(&rst.u, 0, sizeof(rst.u));
+				rst.u.runstate.state = (uint64_t)-1;
+				rst.u.runstate.time_blocked =
+					0x5a - rs->time[RUNSTATE_blocked];
+				rst.u.runstate.time_offline =
+					0x6b6b - rs->time[RUNSTATE_offline];
+				rst.u.runstate.time_runnable = -rst.u.runstate.time_blocked -
+					rst.u.runstate.time_offline;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &rst);
+				break;
+
+			case TEST_RUNSTATE_DATA:
+				if (verbose)
+					printf("Testing RUNSTATE_DATA\n");
+				rst.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA;
+				memset(&rst.u, 0, sizeof(rst.u));
+				rst.u.runstate.state = RUNSTATE_running;
+				rst.u.runstate.state_entry_time = 0x6b6b + 0x5a;
+				rst.u.runstate.time_blocked = 0x6b6b;
+				rst.u.runstate.time_offline = 0x5a;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &rst);
+				break;
+
+			case TEST_STEAL_TIME:
+				if (verbose)
+					printf("Testing steal time\n");
+				/* Yield until scheduler delay exceeds target */
+				rundelay = get_run_delay() + MIN_STEAL_TIME;
+				do {
+					sched_yield();
+				} while (get_run_delay() < rundelay);
+				break;
+
+			case TEST_EVTCHN_MASKED:
+				if (!do_eventfd_tests)
+					goto done;
+				if (verbose)
+					printf("Testing masked event channel\n");
+				shinfo->evtchn_mask[0] = 1UL << EVTCHN_TEST1;
+				eventfd_write(irq_fd[0], 1UL);
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_UNMASKED:
+				if (verbose)
+					printf("Testing unmasked event channel\n");
+				/* Unmask that, but deliver the other one */
+				shinfo->evtchn_pending[0] = 0;
+				shinfo->evtchn_mask[0] = 0;
+				eventfd_write(irq_fd[1], 1UL);
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_SLOWPATH:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[1] = 0;
+				if (verbose)
+					printf("Testing event channel after memslot change\n");
+				vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+							    DUMMY_REGION_GPA, DUMMY_REGION_SLOT, 1, 0);
+				eventfd_write(irq_fd[0], 1UL);
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_SEND_IOCTL:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				if (!do_evtchn_tests)
+					goto done;
+
+				shinfo->evtchn_pending[0] = 0;
+				if (verbose)
+					printf("Testing injection with KVM_XEN_HVM_EVTCHN_SEND\n");
+
+				struct kvm_irq_routing_xen_evtchn e;
+				e.port = EVTCHN_TEST2;
+				e.vcpu = vcpu->id;
+				e.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL;
+
+				vm_ioctl(vm, KVM_XEN_HVM_EVTCHN_SEND, &e);
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_HCALL:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[1] = 0;
+
+				if (verbose)
+					printf("Testing guest EVTCHNOP_send direct to evtchn\n");
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_HCALL_SLOWPATH:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[0] = 0;
+
+				if (verbose)
+					printf("Testing guest EVTCHNOP_send direct to evtchn after memslot change\n");
+				vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+							    DUMMY_REGION_GPA_2, DUMMY_REGION_SLOT_2, 1, 0);
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_EVTCHN_HCALL_EVENTFD:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[0] = 0;
+
+				if (verbose)
+					printf("Testing guest EVTCHNOP_send to eventfd\n");
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_TIMER_SETUP:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[1] = 0;
+
+				if (verbose)
+					printf("Testing guest oneshot timer\n");
+				break;
+
+			case TEST_TIMER_WAIT:
+				memset(&tmr, 0, sizeof(tmr));
+				tmr.type = KVM_XEN_VCPU_ATTR_TYPE_TIMER;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_GET_ATTR, &tmr);
+				TEST_ASSERT(tmr.u.timer.port == EVTCHN_TIMER,
+					    "Timer port not returned");
+				TEST_ASSERT(tmr.u.timer.priority == KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL,
+					    "Timer priority not returned");
+				TEST_ASSERT(tmr.u.timer.expires_ns > rs->state_entry_time,
+					    "Timer expiry not returned");
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_TIMER_RESTORE:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				shinfo->evtchn_pending[0] = 0;
+
+				if (verbose)
+					printf("Testing restored oneshot timer\n");
+
+				tmr.u.timer.expires_ns = rs->state_entry_time + 100000000;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+				evtchn_irq_expected = true;
+				alarm(1);
+				break;
+
+			case TEST_POLL_READY:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+
+				if (verbose)
+					printf("Testing SCHEDOP_poll with already pending event\n");
+				shinfo->evtchn_pending[0] = shinfo->evtchn_mask[0] = 1UL << EVTCHN_TIMER;
+				alarm(1);
+				break;
+
+			case TEST_POLL_TIMEOUT:
+				if (verbose)
+					printf("Testing SCHEDOP_poll timeout\n");
+				shinfo->evtchn_pending[0] = 0;
+				alarm(1);
+				break;
+
+			case TEST_POLL_MASKED:
+				if (verbose)
+					printf("Testing SCHEDOP_poll wake on masked event\n");
+
+				tmr.u.timer.expires_ns = rs->state_entry_time + 100000000;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+				alarm(1);
+				break;
+
+			case TEST_POLL_WAKE:
+				shinfo->evtchn_pending[0] = shinfo->evtchn_mask[0] = 0;
+				if (verbose)
+					printf("Testing SCHEDOP_poll wake on unmasked event\n");
+
+				evtchn_irq_expected = true;
+				tmr.u.timer.expires_ns = rs->state_entry_time + 100000000;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+
+				/* Read it back and check the pending time is reported correctly */
+				tmr.u.timer.expires_ns = 0;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_GET_ATTR, &tmr);
+				TEST_ASSERT(tmr.u.timer.expires_ns == rs->state_entry_time + 100000000,
+					    "Timer not reported pending");
+				alarm(1);
+				break;
+
+			case SET_VCPU_INFO:
+				if (has_shinfo_hva) {
+					struct kvm_xen_vcpu_attr vih = {
+						.type = KVM_XEN_VCPU_ATTR_TYPE_VCPU_INFO_HVA,
+						.u.hva = (unsigned long)vinfo
+					};
+					vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &vih);
+				}
+				break;
+
+			case TEST_TIMER_PAST:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				/* Read timer and check it is no longer pending */
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_GET_ATTR, &tmr);
+				TEST_ASSERT(!tmr.u.timer.expires_ns, "Timer still reported pending");
+
+				shinfo->evtchn_pending[0] = 0;
+				if (verbose)
+					printf("Testing timer in the past\n");
+
+				evtchn_irq_expected = true;
+				tmr.u.timer.expires_ns = rs->state_entry_time - 100000000ULL;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+				alarm(1);
+				break;
+
+			case TEST_LOCKING_SEND_RACE:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+				alarm(0);
+
+				if (verbose)
+					printf("Testing shinfo lock corruption (KVM_XEN_HVM_EVTCHN_SEND)\n");
+
+				ret = pthread_create(&thread, NULL, &juggle_shinfo_state, (void *)vm);
+				TEST_ASSERT(ret == 0, "pthread_create() failed: %s", strerror(ret));
+
+				struct kvm_irq_routing_xen_evtchn uxe = {
+					.port = 1,
+					.vcpu = vcpu->id,
+					.priority = KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL
+				};
+
+				evtchn_irq_expected = true;
+				for (time_t t = time(NULL) + SHINFO_RACE_TIMEOUT; time(NULL) < t;)
+					__vm_ioctl(vm, KVM_XEN_HVM_EVTCHN_SEND, &uxe);
+				break;
+
+			case TEST_LOCKING_POLL_RACE:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+
+				if (verbose)
+					printf("Testing shinfo lock corruption (SCHEDOP_poll)\n");
+
+				shinfo->evtchn_pending[0] = 1;
+
+				evtchn_irq_expected = true;
+				tmr.u.timer.expires_ns = rs->state_entry_time +
+							 SHINFO_RACE_TIMEOUT * 1000000000ULL;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+				break;
+
+			case TEST_LOCKING_POLL_TIMEOUT:
+				/*
+				 * Optional and possibly repeated sync point.
+				 * Injecting the timer IRQ may fail if the
+				 * shinfo is invalid when the timer expires.
+				 * If the timer has expired but the IRQ hasn't
+				 * been delivered, rearm the timer and retry.
+				 */
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_GET_ATTR, &tmr);
+
+				/* Resume the guest if the timer is still pending. */
+				if (tmr.u.timer.expires_ns)
+					break;
+
+				/* All done if the IRQ was delivered. */
+				if (!evtchn_irq_expected)
+					break;
+
+				tmr.u.timer.expires_ns = rs->state_entry_time +
+							 SHINFO_RACE_TIMEOUT * 1000000000ULL;
+				vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &tmr);
+				break;
+			case TEST_DONE:
+				TEST_ASSERT(!evtchn_irq_expected,
+					    "Expected event channel IRQ but it didn't happen");
+
+				ret = pthread_cancel(thread);
+				TEST_ASSERT(ret == 0, "pthread_cancel() failed: %s", strerror(ret));
+
+				ret = pthread_join(thread, 0);
+				TEST_ASSERT(ret == 0, "pthread_join() failed: %s", strerror(ret));
+				goto done;
+
+			case TEST_GUEST_SAW_IRQ:
+				TEST_ASSERT(evtchn_irq_expected, "Unexpected event channel IRQ");
+				evtchn_irq_expected = false;
+				break;
+			}
+			break;
+		}
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+		}
+	}
+
+ done:
+	evt_reset.type = KVM_XEN_ATTR_TYPE_EVTCHN;
+	evt_reset.u.evtchn.flags = KVM_XEN_EVTCHN_RESET;
+	vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &evt_reset);
+
+	alarm(0);
+
+	/*
+	 * Just a *really* basic check that things are being put in the
+	 * right place. The actual calculations are much the same for
+	 * Xen as they are for the KVM variants, so no need to check.
+	 */
+	struct pvclock_wall_clock *wc;
+	struct pvclock_vcpu_time_info *ti, *ti2;
+	struct kvm_clock_data kcdata;
+	long long delta;
+
+	wc = addr_gpa2hva(vm, SHINFO_REGION_GPA + 0xc00);
+	ti = addr_gpa2hva(vm, SHINFO_REGION_GPA + 0x40 + 0x20);
+	ti2 = addr_gpa2hva(vm, PVTIME_ADDR);
+
+	if (verbose) {
+		printf("Wall clock (v %d) %d.%09d\n", wc->version, wc->sec, wc->nsec);
+		printf("Time info 1: v %u tsc %" PRIu64 " time %" PRIu64 " mul %u shift %u flags %x\n",
+		       ti->version, ti->tsc_timestamp, ti->system_time, ti->tsc_to_system_mul,
+		       ti->tsc_shift, ti->flags);
+		printf("Time info 2: v %u tsc %" PRIu64 " time %" PRIu64 " mul %u shift %u flags %x\n",
+		       ti2->version, ti2->tsc_timestamp, ti2->system_time, ti2->tsc_to_system_mul,
+		       ti2->tsc_shift, ti2->flags);
+	}
+
+	TEST_ASSERT(wc->version && !(wc->version & 1),
+		    "Bad wallclock version %x", wc->version);
+
+	vm_ioctl(vm, KVM_GET_CLOCK, &kcdata);
+
+	if (kcdata.flags & KVM_CLOCK_REALTIME) {
+		if (verbose) {
+			printf("KVM_GET_CLOCK clock: %lld.%09lld\n",
+			       kcdata.clock / NSEC_PER_SEC, kcdata.clock % NSEC_PER_SEC);
+			printf("KVM_GET_CLOCK realtime: %lld.%09lld\n",
+			       kcdata.realtime / NSEC_PER_SEC, kcdata.realtime % NSEC_PER_SEC);
+		}
+
+		delta = (wc->sec * NSEC_PER_SEC + wc->nsec) - (kcdata.realtime - kcdata.clock);
+
+		/*
+		 * KVM_GET_CLOCK gives CLOCK_REALTIME which jumps on leap seconds updates but
+		 * unfortunately KVM doesn't currently offer a CLOCK_TAI alternative. Accept 1s
+		 * delta as testing clock accuracy is not the goal here. The test just needs to
+		 * check that the value in shinfo is somewhat sane.
+		 */
+		TEST_ASSERT(llabs(delta) < NSEC_PER_SEC,
+			    "Guest's epoch from shinfo %d.%09d differs from KVM_GET_CLOCK %lld.%lld",
+			    wc->sec, wc->nsec, (kcdata.realtime - kcdata.clock) / NSEC_PER_SEC,
+			    (kcdata.realtime - kcdata.clock) % NSEC_PER_SEC);
+	} else {
+		pr_info("Missing KVM_CLOCK_REALTIME, skipping shinfo epoch sanity check\n");
+	}
+
+	TEST_ASSERT(ti->version && !(ti->version & 1),
+		    "Bad time_info version %x", ti->version);
+	TEST_ASSERT(ti2->version && !(ti2->version & 1),
+		    "Bad time_info version %x", ti->version);
+
+	if (do_runstate_tests) {
+		/*
+		 * Fetch runstate and check sanity. Strictly speaking in the
+		 * general case we might not expect the numbers to be identical
+		 * but in this case we know we aren't running the vCPU any more.
+		 */
+		struct kvm_xen_vcpu_attr rst = {
+			.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_DATA,
+		};
+		vcpu_ioctl(vcpu, KVM_XEN_VCPU_GET_ATTR, &rst);
+
+		if (verbose) {
+			printf("Runstate: %s(%d), entry %" PRIu64 " ns\n",
+			       rs->state <= RUNSTATE_offline ? runstate_names[rs->state] : "unknown",
+			       rs->state, rs->state_entry_time);
+			for (int i = RUNSTATE_running; i <= RUNSTATE_offline; i++) {
+				printf("State %s: %" PRIu64 " ns\n",
+				       runstate_names[i], rs->time[i]);
+			}
+		}
+
+		/*
+		 * Exercise runstate info at all points across the page boundary, in
+		 * 32-bit and 64-bit mode. In particular, test the case where it is
+		 * configured in 32-bit mode and then switched to 64-bit mode while
+		 * active, which takes it onto the second page.
+		 */
+		unsigned long runstate_addr;
+		struct compat_vcpu_runstate_info *crs;
+		for (runstate_addr = SHINFO_REGION_GPA + PAGE_SIZE + PAGE_SIZE - sizeof(*rs) - 4;
+		     runstate_addr < SHINFO_REGION_GPA + PAGE_SIZE + PAGE_SIZE + 4; runstate_addr++) {
+
+			rs = addr_gpa2hva(vm, runstate_addr);
+			crs = (void *)rs;
+
+			memset(rs, 0xa5, sizeof(*rs));
+
+			/* Set to compatibility mode */
+			lm.u.long_mode = 0;
+			vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &lm);
+
+			/* Set runstate to new address (kernel will write it) */
+			struct kvm_xen_vcpu_attr st = {
+				.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADDR,
+				.u.gpa = runstate_addr,
+			};
+			vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &st);
+
+			if (verbose)
+				printf("Compatibility runstate at %08lx\n", runstate_addr);
+
+			TEST_ASSERT(crs->state == rst.u.runstate.state, "Runstate mismatch");
+			TEST_ASSERT(crs->state_entry_time == rst.u.runstate.state_entry_time,
+				    "State entry time mismatch");
+			TEST_ASSERT(crs->time[RUNSTATE_running] == rst.u.runstate.time_running,
+				    "Running time mismatch");
+			TEST_ASSERT(crs->time[RUNSTATE_runnable] == rst.u.runstate.time_runnable,
+				    "Runnable time mismatch");
+			TEST_ASSERT(crs->time[RUNSTATE_blocked] == rst.u.runstate.time_blocked,
+				    "Blocked time mismatch");
+			TEST_ASSERT(crs->time[RUNSTATE_offline] == rst.u.runstate.time_offline,
+				    "Offline time mismatch");
+			TEST_ASSERT(crs->time[RUNSTATE_offline + 1] == 0xa5a5a5a5a5a5a5a5ULL,
+				    "Structure overrun");
+			TEST_ASSERT(crs->state_entry_time == crs->time[0] +
+				    crs->time[1] + crs->time[2] + crs->time[3],
+				    "runstate times don't add up");
+
+
+			/* Now switch to 64-bit mode */
+			lm.u.long_mode = 1;
+			vm_ioctl(vm, KVM_XEN_HVM_SET_ATTR, &lm);
+
+			memset(rs, 0xa5, sizeof(*rs));
+
+			/* Don't change the address, just trigger a write */
+			struct kvm_xen_vcpu_attr adj = {
+				.type = KVM_XEN_VCPU_ATTR_TYPE_RUNSTATE_ADJUST,
+				.u.runstate.state = (uint64_t)-1
+			};
+			vcpu_ioctl(vcpu, KVM_XEN_VCPU_SET_ATTR, &adj);
+
+			if (verbose)
+				printf("64-bit runstate at %08lx\n", runstate_addr);
+
+			TEST_ASSERT(rs->state == rst.u.runstate.state, "Runstate mismatch");
+			TEST_ASSERT(rs->state_entry_time == rst.u.runstate.state_entry_time,
+				    "State entry time mismatch");
+			TEST_ASSERT(rs->time[RUNSTATE_running] == rst.u.runstate.time_running,
+				    "Running time mismatch");
+			TEST_ASSERT(rs->time[RUNSTATE_runnable] == rst.u.runstate.time_runnable,
+				    "Runnable time mismatch");
+			TEST_ASSERT(rs->time[RUNSTATE_blocked] == rst.u.runstate.time_blocked,
+				    "Blocked time mismatch");
+			TEST_ASSERT(rs->time[RUNSTATE_offline] == rst.u.runstate.time_offline,
+				    "Offline time mismatch");
+			TEST_ASSERT(rs->time[RUNSTATE_offline + 1] == 0xa5a5a5a5a5a5a5a5ULL,
+				    "Structure overrun");
+
+			TEST_ASSERT(rs->state_entry_time == rs->time[0] +
+				    rs->time[1] + rs->time[2] + rs->time[3],
+				    "runstate times don't add up");
+		}
+	}
+
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/xen_vmcall_test.c b/tools/testing/selftests/kvm/x86/xen_vmcall_test.c
new file mode 100644
index 000000000000..2585087cdf5c
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xen_vmcall_test.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * xen_vmcall_test
+ *
+ * Copyright © 2020 Amazon.com, Inc. or its affiliates.
+ *
+ * Userspace hypercall testing
+ */
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "processor.h"
+#include "hyperv.h"
+
+#define HCALL_REGION_GPA	0xc0000000ULL
+#define HCALL_REGION_SLOT	10
+
+#define INPUTVALUE 17
+#define ARGVALUE(x) (0xdeadbeef5a5a0000UL + x)
+#define RETVALUE 0xcafef00dfbfbffffUL
+
+#define XEN_HYPERCALL_MSR	0x40000200
+#define HV_GUEST_OS_ID_MSR	0x40000000
+#define HV_HYPERCALL_MSR	0x40000001
+
+#define HVCALL_SIGNAL_EVENT		0x005d
+#define HV_STATUS_INVALID_ALIGNMENT	4
+
+static void guest_code(void)
+{
+	unsigned long rax = INPUTVALUE;
+	unsigned long rdi = ARGVALUE(1);
+	unsigned long rsi = ARGVALUE(2);
+	unsigned long rdx = ARGVALUE(3);
+	unsigned long rcx;
+	register unsigned long r10 __asm__("r10") = ARGVALUE(4);
+	register unsigned long r8 __asm__("r8") = ARGVALUE(5);
+	register unsigned long r9 __asm__("r9") = ARGVALUE(6);
+
+	/* First a direct invocation of 'vmcall' */
+	__asm__ __volatile__("vmcall" :
+			     "=a"(rax) :
+			     "a"(rax), "D"(rdi), "S"(rsi), "d"(rdx),
+			     "r"(r10), "r"(r8), "r"(r9));
+	GUEST_ASSERT(rax == RETVALUE);
+
+	/* Fill in the Xen hypercall page */
+	__asm__ __volatile__("wrmsr" : : "c" (XEN_HYPERCALL_MSR),
+			     "a" (HCALL_REGION_GPA & 0xffffffff),
+			     "d" (HCALL_REGION_GPA >> 32));
+
+	/* Set Hyper-V Guest OS ID */
+	__asm__ __volatile__("wrmsr" : : "c" (HV_GUEST_OS_ID_MSR),
+			     "a" (0x5a), "d" (0));
+
+	/* Hyper-V hypercall page */
+	u64 msrval = HCALL_REGION_GPA + PAGE_SIZE + 1;
+	__asm__ __volatile__("wrmsr" : : "c" (HV_HYPERCALL_MSR),
+			     "a" (msrval & 0xffffffff),
+			     "d" (msrval >> 32));
+
+	/* Invoke a Xen hypercall */
+	__asm__ __volatile__("call *%1" : "=a"(rax) :
+			     "r"(HCALL_REGION_GPA + INPUTVALUE * 32),
+			     "a"(rax), "D"(rdi), "S"(rsi), "d"(rdx),
+			     "r"(r10), "r"(r8), "r"(r9));
+	GUEST_ASSERT(rax == RETVALUE);
+
+	/* Invoke a Hyper-V hypercall */
+	rax = 0;
+	rcx = HVCALL_SIGNAL_EVENT;	/* code */
+	rdx = 0x5a5a5a5a;		/* ingpa (badly aligned) */
+	__asm__ __volatile__("call *%1" : "=a"(rax) :
+			     "r"(HCALL_REGION_GPA + PAGE_SIZE),
+			     "a"(rax), "c"(rcx), "d"(rdx),
+			     "r"(r8));
+	GUEST_ASSERT(rax == HV_STATUS_INVALID_ALIGNMENT);
+
+	GUEST_DONE();
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned int xen_caps;
+	struct kvm_vcpu *vcpu;
+	struct kvm_vm *vm;
+
+	xen_caps = kvm_check_cap(KVM_CAP_XEN_HVM);
+	TEST_REQUIRE(xen_caps & KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL);
+
+	vm = vm_create_with_one_vcpu(&vcpu, guest_code);
+	vcpu_set_hv_cpuid(vcpu);
+
+	struct kvm_xen_hvm_config hvmc = {
+		.flags = KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL,
+		.msr = XEN_HYPERCALL_MSR,
+	};
+	vm_ioctl(vm, KVM_XEN_HVM_CONFIG, &hvmc);
+
+	/* Map a region for the hypercall pages */
+	vm_userspace_mem_region_add(vm, VM_MEM_SRC_ANONYMOUS,
+				    HCALL_REGION_GPA, HCALL_REGION_SLOT, 2, 0);
+	virt_map(vm, HCALL_REGION_GPA, HCALL_REGION_GPA, 2);
+
+	for (;;) {
+		volatile struct kvm_run *run = vcpu->run;
+		struct ucall uc;
+
+		vcpu_run(vcpu);
+
+		if (run->exit_reason == KVM_EXIT_XEN) {
+			TEST_ASSERT_EQ(run->xen.type, KVM_EXIT_XEN_HCALL);
+			TEST_ASSERT_EQ(run->xen.u.hcall.cpl, 0);
+			TEST_ASSERT_EQ(run->xen.u.hcall.longmode, 1);
+			TEST_ASSERT_EQ(run->xen.u.hcall.input, INPUTVALUE);
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[0], ARGVALUE(1));
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[1], ARGVALUE(2));
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[2], ARGVALUE(3));
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[3], ARGVALUE(4));
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[4], ARGVALUE(5));
+			TEST_ASSERT_EQ(run->xen.u.hcall.params[5], ARGVALUE(6));
+			run->xen.u.hcall.result = RETVALUE;
+			continue;
+		}
+
+		TEST_ASSERT_KVM_EXIT_REASON(vcpu, KVM_EXIT_IO);
+
+		switch (get_ucall(vcpu, &uc)) {
+		case UCALL_ABORT:
+			REPORT_GUEST_ASSERT(uc);
+			/* NOT REACHED */
+		case UCALL_SYNC:
+			break;
+		case UCALL_DONE:
+			goto done;
+		default:
+			TEST_FAIL("Unknown ucall 0x%lx.", uc.cmd);
+		}
+	}
+done:
+	kvm_vm_free(vm);
+	return 0;
+}
diff --git a/tools/testing/selftests/kvm/x86/xss_msr_test.c b/tools/testing/selftests/kvm/x86/xss_msr_test.c
new file mode 100644
index 000000000000..f331a4e9bae3
--- /dev/null
+++ b/tools/testing/selftests/kvm/x86/xss_msr_test.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019, Google LLC.
+ *
+ * Tests for the IA32_XSS MSR.
+ */
+#include <sys/ioctl.h>
+
+#include "test_util.h"
+#include "kvm_util.h"
+#include "vmx.h"
+
+#define MSR_BITS      64
+
+int main(int argc, char *argv[])
+{
+	bool xss_in_msr_list;
+	struct kvm_vm *vm;
+	struct kvm_vcpu *vcpu;
+	uint64_t xss_val;
+	int i, r;
+
+	/* Create VM */
+	vm = vm_create_with_one_vcpu(&vcpu, NULL);
+
+	TEST_REQUIRE(kvm_cpu_has(X86_FEATURE_XSAVES));
+
+	xss_val = vcpu_get_msr(vcpu, MSR_IA32_XSS);
+	TEST_ASSERT(xss_val == 0,
+		    "MSR_IA32_XSS should be initialized to zero");
+
+	vcpu_set_msr(vcpu, MSR_IA32_XSS, xss_val);
+
+	/*
+	 * At present, KVM only supports a guest IA32_XSS value of 0. Verify
+	 * that trying to set the guest IA32_XSS to an unsupported value fails.
+	 * Also, in the future when a non-zero value succeeds check that
+	 * IA32_XSS is in the list of MSRs to save/restore.
+	 */
+	xss_in_msr_list = kvm_msr_is_in_save_restore_list(MSR_IA32_XSS);
+	for (i = 0; i < MSR_BITS; ++i) {
+		r = _vcpu_set_msr(vcpu, MSR_IA32_XSS, 1ull << i);
+
+		/*
+		 * Setting a list of MSRs returns the entry that "faulted", or
+		 * the last entry +1 if all MSRs were successfully written.
+		 */
+		TEST_ASSERT(!r || r == 1, KVM_IOCTL_ERROR(KVM_SET_MSRS, r));
+		TEST_ASSERT(r != 1 || xss_in_msr_list,
+			    "IA32_XSS was able to be set, but was not in save/restore list");
+	}
+
+	kvm_vm_free(vm);
+}
diff --git a/tools/testing/selftests/landlock/.gitignore b/tools/testing/selftests/landlock/.gitignore
new file mode 100644
index 000000000000..a820329cae0d
--- /dev/null
+++ b/tools/testing/selftests/landlock/.gitignore
@@ -0,0 +1,5 @@
+/*_test
+/sandbox-and-launch
+/true
+/wait-pipe
+/wait-pipe-sandbox
diff --git a/tools/testing/selftests/landlock/Makefile b/tools/testing/selftests/landlock/Makefile
new file mode 100644
index 000000000000..044b83bde16e
--- /dev/null
+++ b/tools/testing/selftests/landlock/Makefile
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# First run: make -C ../../../.. headers_install
+
+CFLAGS += -Wall -O2 $(KHDR_INCLUDES)
+
+LOCAL_HDRS += $(wildcard *.h)
+
+src_test := $(wildcard *_test.c)
+
+TEST_GEN_PROGS := $(src_test:.c=)
+
+TEST_GEN_PROGS_EXTENDED := \
+	true \
+	sandbox-and-launch \
+	wait-pipe \
+	wait-pipe-sandbox
+
+# Short targets:
+$(TEST_GEN_PROGS): LDLIBS += -lcap -lpthread
+$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static
+
+include ../lib.mk
+
+# Targets with $(OUTPUT)/ prefix:
+$(TEST_GEN_PROGS): LDLIBS += -lcap -lpthread
+$(TEST_GEN_PROGS_EXTENDED): LDFLAGS += -static
diff --git a/tools/testing/selftests/landlock/audit.h b/tools/testing/selftests/landlock/audit.h
new file mode 100644
index 000000000000..44eb433e9666
--- /dev/null
+++ b/tools/testing/selftests/landlock/audit.h
@@ -0,0 +1,478 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Landlock audit helpers
+ *
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/audit.h>
+#include <linux/limits.h>
+#include <linux/netlink.h>
+#include <regex.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+#define REGEX_LANDLOCK_PREFIX "^audit([0-9.:]\\+): domain=\\([0-9a-f]\\+\\)"
+
+struct audit_filter {
+	__u32 record_type;
+	size_t exe_len;
+	char exe[PATH_MAX];
+};
+
+struct audit_message {
+	struct nlmsghdr header;
+	union {
+		struct audit_status status;
+		struct audit_features features;
+		struct audit_rule_data rule;
+		struct nlmsgerr err;
+		char data[PATH_MAX + 200];
+	};
+};
+
+static const struct timeval audit_tv_dom_drop = {
+	/*
+	 * Because domain deallocation is tied to asynchronous credential
+	 * freeing, receiving such event may take some time.  In practice,
+	 * on a small VM, it should not exceed 100k usec, but let's wait up
+	 * to 1 second to be safe.
+	 */
+	.tv_sec = 1,
+};
+
+static const struct timeval audit_tv_default = {
+	.tv_usec = 1,
+};
+
+static int audit_send(const int fd, const struct audit_message *const msg)
+{
+	struct sockaddr_nl addr = {
+		.nl_family = AF_NETLINK,
+	};
+	int ret;
+
+	do {
+		ret = sendto(fd, msg, msg->header.nlmsg_len, 0,
+			     (struct sockaddr *)&addr, sizeof(addr));
+	} while (ret < 0 && errno == EINTR);
+
+	if (ret < 0)
+		return -errno;
+
+	if (ret != msg->header.nlmsg_len)
+		return -E2BIG;
+
+	return 0;
+}
+
+static int audit_recv(const int fd, struct audit_message *msg)
+{
+	struct sockaddr_nl addr;
+	socklen_t addrlen = sizeof(addr);
+	struct audit_message msg_tmp;
+	int err;
+
+	if (!msg)
+		msg = &msg_tmp;
+
+	do {
+		err = recvfrom(fd, msg, sizeof(*msg), 0,
+			       (struct sockaddr *)&addr, &addrlen);
+	} while (err < 0 && errno == EINTR);
+
+	if (err < 0)
+		return -errno;
+
+	if (addrlen != sizeof(addr) || addr.nl_pid != 0)
+		return -EINVAL;
+
+	/* Checks Netlink error or end of messages. */
+	if (msg->header.nlmsg_type == NLMSG_ERROR)
+		return msg->err.error;
+
+	return 0;
+}
+
+static int audit_request(const int fd,
+			 const struct audit_message *const request,
+			 struct audit_message *reply)
+{
+	struct audit_message msg_tmp;
+	bool first_reply = true;
+	int err;
+
+	err = audit_send(fd, request);
+	if (err)
+		return err;
+
+	if (!reply)
+		reply = &msg_tmp;
+
+	do {
+		if (first_reply)
+			first_reply = false;
+		else
+			reply = &msg_tmp;
+
+		err = audit_recv(fd, reply);
+		if (err)
+			return err;
+	} while (reply->header.nlmsg_type != NLMSG_ERROR &&
+		 reply->err.msg.nlmsg_type != request->header.nlmsg_type);
+
+	return reply->err.error;
+}
+
+static int audit_filter_exe(const int audit_fd,
+			    const struct audit_filter *const filter,
+			    const __u16 type)
+{
+	struct audit_message msg = {
+		.header = {
+			.nlmsg_len = NLMSG_SPACE(sizeof(msg.rule)) +
+				     NLMSG_ALIGN(filter->exe_len),
+			.nlmsg_type = type,
+			.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
+		},
+		.rule = {
+			.flags = AUDIT_FILTER_EXCLUDE,
+			.action = AUDIT_NEVER,
+			.field_count = 1,
+			.fields[0] = filter->record_type,
+			.fieldflags[0] = AUDIT_NOT_EQUAL,
+			.values[0] = filter->exe_len,
+			.buflen = filter->exe_len,
+		}
+	};
+
+	if (filter->record_type != AUDIT_EXE)
+		return -EINVAL;
+
+	memcpy(msg.rule.buf, filter->exe, filter->exe_len);
+	return audit_request(audit_fd, &msg, NULL);
+}
+
+static int audit_filter_drop(const int audit_fd, const __u16 type)
+{
+	struct audit_message msg = {
+		.header = {
+			.nlmsg_len = NLMSG_SPACE(sizeof(msg.rule)),
+			.nlmsg_type = type,
+			.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
+		},
+		.rule = {
+			.flags = AUDIT_FILTER_EXCLUDE,
+			.action = AUDIT_NEVER,
+			.field_count = 1,
+			.fields[0] = AUDIT_MSGTYPE,
+			.fieldflags[0] = AUDIT_NOT_EQUAL,
+			.values[0] = AUDIT_LANDLOCK_DOMAIN,
+		}
+	};
+
+	return audit_request(audit_fd, &msg, NULL);
+}
+
+static int audit_set_status(int fd, __u32 key, __u32 val)
+{
+	const struct audit_message msg = {
+		.header = {
+			.nlmsg_len = NLMSG_SPACE(sizeof(msg.status)),
+			.nlmsg_type = AUDIT_SET,
+			.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
+		},
+		.status = {
+			.mask = key,
+			.enabled = key == AUDIT_STATUS_ENABLED ? val : 0,
+			.pid = key == AUDIT_STATUS_PID ? val : 0,
+		}
+	};
+
+	return audit_request(fd, &msg, NULL);
+}
+
+/* Returns a pointer to the last filled character of @dst, which is `\0`.  */
+static __maybe_unused char *regex_escape(const char *const src, char *dst,
+					 size_t dst_size)
+{
+	char *d = dst;
+
+	for (const char *s = src; *s; s++) {
+		switch (*s) {
+		case '$':
+		case '*':
+		case '.':
+		case '[':
+		case '\\':
+		case ']':
+		case '^':
+			if (d >= dst + dst_size - 2)
+				return (char *)-ENOMEM;
+
+			*d++ = '\\';
+			*d++ = *s;
+			break;
+		default:
+			if (d >= dst + dst_size - 1)
+				return (char *)-ENOMEM;
+
+			*d++ = *s;
+		}
+	}
+	if (d >= dst + dst_size - 1)
+		return (char *)-ENOMEM;
+
+	*d = '\0';
+	return d;
+}
+
+/*
+ * @domain_id: The domain ID extracted from the audit message (if the first part
+ * of @pattern is REGEX_LANDLOCK_PREFIX).  It is set to 0 if the domain ID is
+ * not found.
+ */
+static int audit_match_record(int audit_fd, const __u16 type,
+			      const char *const pattern, __u64 *domain_id)
+{
+	struct audit_message msg;
+	int ret, err = 0;
+	bool matches_record = !type;
+	regmatch_t matches[2];
+	regex_t regex;
+
+	ret = regcomp(&regex, pattern, 0);
+	if (ret)
+		return -EINVAL;
+
+	do {
+		memset(&msg, 0, sizeof(msg));
+		err = audit_recv(audit_fd, &msg);
+		if (err)
+			goto out;
+
+		if (msg.header.nlmsg_type == type)
+			matches_record = true;
+	} while (!matches_record);
+
+	ret = regexec(&regex, msg.data, ARRAY_SIZE(matches), matches, 0);
+	if (ret) {
+		printf("DATA: %s\n", msg.data);
+		printf("ERROR: no match for pattern: %s\n", pattern);
+		err = -ENOENT;
+	}
+
+	if (domain_id) {
+		*domain_id = 0;
+		if (matches[1].rm_so != -1) {
+			int match_len = matches[1].rm_eo - matches[1].rm_so;
+			/* The maximal characters of a 2^64 hexadecimal number is 17. */
+			char dom_id[18];
+
+			if (match_len > 0 && match_len < sizeof(dom_id)) {
+				memcpy(dom_id, msg.data + matches[1].rm_so,
+				       match_len);
+				dom_id[match_len] = '\0';
+				if (domain_id)
+					*domain_id = strtoull(dom_id, NULL, 16);
+			}
+		}
+	}
+
+out:
+	regfree(&regex);
+	return err;
+}
+
+static int __maybe_unused matches_log_domain_allocated(int audit_fd, pid_t pid,
+						       __u64 *domain_id)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" status=allocated mode=enforcing pid=%d uid=[0-9]\\+"
+		" exe=\"[^\"]\\+\" comm=\".*_test\"$";
+	char log_match[sizeof(log_template) + 10];
+	int log_match_len;
+
+	log_match_len =
+		snprintf(log_match, sizeof(log_match), log_template, pid);
+	if (log_match_len > sizeof(log_match))
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_DOMAIN, log_match,
+				  domain_id);
+}
+
+static int __maybe_unused matches_log_domain_deallocated(
+	int audit_fd, unsigned int num_denials, __u64 *domain_id)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" status=deallocated denials=%u$";
+	char log_match[sizeof(log_template) + 10];
+	int log_match_len;
+
+	log_match_len = snprintf(log_match, sizeof(log_match), log_template,
+				 num_denials);
+	if (log_match_len > sizeof(log_match))
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_DOMAIN, log_match,
+				  domain_id);
+}
+
+struct audit_records {
+	size_t access;
+	size_t domain;
+};
+
+static int audit_count_records(int audit_fd, struct audit_records *records)
+{
+	struct audit_message msg;
+	int err;
+
+	records->access = 0;
+	records->domain = 0;
+
+	do {
+		memset(&msg, 0, sizeof(msg));
+		err = audit_recv(audit_fd, &msg);
+		if (err) {
+			if (err == -EAGAIN)
+				return 0;
+			else
+				return err;
+		}
+
+		switch (msg.header.nlmsg_type) {
+		case AUDIT_LANDLOCK_ACCESS:
+			records->access++;
+			break;
+		case AUDIT_LANDLOCK_DOMAIN:
+			records->domain++;
+			break;
+		}
+	} while (true);
+
+	return 0;
+}
+
+static int audit_init(void)
+{
+	int fd, err;
+
+	fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_AUDIT);
+	if (fd < 0)
+		return -errno;
+
+	err = audit_set_status(fd, AUDIT_STATUS_ENABLED, 1);
+	if (err)
+		return err;
+
+	err = audit_set_status(fd, AUDIT_STATUS_PID, getpid());
+	if (err)
+		return err;
+
+	/* Sets a timeout for negative tests. */
+	err = setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &audit_tv_default,
+			 sizeof(audit_tv_default));
+	if (err)
+		return -errno;
+
+	return fd;
+}
+
+static int audit_init_filter_exe(struct audit_filter *filter, const char *path)
+{
+	char *absolute_path = NULL;
+
+	/* It is assume that there is not already filtering rules. */
+	filter->record_type = AUDIT_EXE;
+	if (!path) {
+		int ret = readlink("/proc/self/exe", filter->exe,
+				   sizeof(filter->exe) - 1);
+		if (ret < 0)
+			return -errno;
+
+		filter->exe_len = ret;
+		return 0;
+	}
+
+	absolute_path = realpath(path, NULL);
+	if (!absolute_path)
+		return -errno;
+
+	/* No need for the terminating NULL byte. */
+	filter->exe_len = strlen(absolute_path);
+	if (filter->exe_len > sizeof(filter->exe))
+		return -E2BIG;
+
+	memcpy(filter->exe, absolute_path, filter->exe_len);
+	free(absolute_path);
+	return 0;
+}
+
+static int audit_cleanup(int audit_fd, struct audit_filter *filter)
+{
+	struct audit_filter new_filter;
+
+	if (audit_fd < 0 || !filter) {
+		int err;
+
+		/*
+		 * Simulates audit_init_with_exe_filter() when called from
+		 * FIXTURE_TEARDOWN_PARENT().
+		 */
+		audit_fd = audit_init();
+		if (audit_fd < 0)
+			return audit_fd;
+
+		filter = &new_filter;
+		err = audit_init_filter_exe(filter, NULL);
+		if (err)
+			return err;
+	}
+
+	/* Filters might not be in place. */
+	audit_filter_exe(audit_fd, filter, AUDIT_DEL_RULE);
+	audit_filter_drop(audit_fd, AUDIT_DEL_RULE);
+
+	/*
+	 * Because audit_cleanup() might not be called by the test auditd
+	 * process, it might not be possible to explicitly set it.  Anyway,
+	 * AUDIT_STATUS_ENABLED will implicitly be set to 0 when the auditd
+	 * process will exit.
+	 */
+	return close(audit_fd);
+}
+
+static int audit_init_with_exe_filter(struct audit_filter *filter)
+{
+	int fd, err;
+
+	fd = audit_init();
+	if (fd < 0)
+		return fd;
+
+	err = audit_init_filter_exe(filter, NULL);
+	if (err)
+		return err;
+
+	err = audit_filter_exe(fd, filter, AUDIT_ADD_RULE);
+	if (err)
+		return err;
+
+	return fd;
+}
diff --git a/tools/testing/selftests/landlock/audit_test.c b/tools/testing/selftests/landlock/audit_test.c
new file mode 100644
index 000000000000..46d02d49835a
--- /dev/null
+++ b/tools/testing/selftests/landlock/audit_test.c
@@ -0,0 +1,672 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Audit
+ *
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/landlock.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "audit.h"
+#include "common.h"
+
+static int matches_log_signal(struct __test_metadata *const _metadata,
+			      int audit_fd, const pid_t opid, __u64 *domain_id)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" blockers=scope\\.signal opid=%d ocomm=\"audit_test\"$";
+	char log_match[sizeof(log_template) + 10];
+	int log_match_len;
+
+	log_match_len =
+		snprintf(log_match, sizeof(log_match), log_template, opid);
+	if (log_match_len > sizeof(log_match))
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_ACCESS, log_match,
+				  domain_id);
+}
+
+FIXTURE(audit)
+{
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_SETUP(audit)
+{
+	disable_caps(_metadata);
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd)
+	{
+		const char *error_msg;
+
+		/* kill "$(auditctl -s | sed -ne 's/^pid \([0-9]\+\)$/\1/p')" */
+		if (self->audit_fd == -EEXIST)
+			error_msg = "socket already in use (e.g. auditd)";
+		else
+			error_msg = strerror(-self->audit_fd);
+		TH_LOG("Failed to initialize audit: %s", error_msg);
+	}
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+FIXTURE_TEARDOWN(audit)
+{
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, audit_cleanup(self->audit_fd, &self->audit_filter));
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+TEST_F(audit, layers)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.scoped = LANDLOCK_SCOPE_SIGNAL,
+	};
+	int status, ruleset_fd, i;
+	__u64(*domain_stack)[16];
+	__u64 prev_dom = 3;
+	pid_t child;
+
+	domain_stack = mmap(NULL, sizeof(*domain_stack), PROT_READ | PROT_WRITE,
+			    MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(MAP_FAILED, domain_stack);
+	memset(domain_stack, 0, sizeof(*domain_stack));
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		for (i = 0; i < ARRAY_SIZE(*domain_stack); i++) {
+			__u64 denial_dom = 1;
+			__u64 allocated_dom = 2;
+
+			EXPECT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+
+			/* Creates a denial to get the domain ID. */
+			EXPECT_EQ(-1, kill(getppid(), 0));
+			EXPECT_EQ(EPERM, errno);
+			EXPECT_EQ(0,
+				  matches_log_signal(_metadata, self->audit_fd,
+						     getppid(), &denial_dom));
+			EXPECT_EQ(0, matches_log_domain_allocated(
+					     self->audit_fd, getpid(),
+					     &allocated_dom));
+			EXPECT_NE(denial_dom, 1);
+			EXPECT_NE(denial_dom, 0);
+			EXPECT_EQ(denial_dom, allocated_dom);
+
+			/* Checks that the new domain is younger than the previous one. */
+			EXPECT_GT(allocated_dom, prev_dom);
+			prev_dom = allocated_dom;
+			(*domain_stack)[i] = allocated_dom;
+		}
+
+		/* Checks that we reached the maximum number of layers. */
+		EXPECT_EQ(-1, landlock_restrict_self(ruleset_fd, 0));
+		EXPECT_EQ(E2BIG, errno);
+
+		/* Updates filter rules to match the drop record. */
+		set_cap(_metadata, CAP_AUDIT_CONTROL);
+		EXPECT_EQ(0, audit_filter_drop(self->audit_fd, AUDIT_ADD_RULE));
+		EXPECT_EQ(0,
+			  audit_filter_exe(self->audit_fd, &self->audit_filter,
+					   AUDIT_DEL_RULE));
+		clear_cap(_metadata, CAP_AUDIT_CONTROL);
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+
+	/* Purges log from deallocated domains. */
+	EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+				&audit_tv_dom_drop, sizeof(audit_tv_dom_drop)));
+	for (i = ARRAY_SIZE(*domain_stack) - 1; i >= 0; i--) {
+		__u64 deallocated_dom = 2;
+
+		EXPECT_EQ(0, matches_log_domain_deallocated(self->audit_fd, 1,
+							    &deallocated_dom));
+		EXPECT_EQ((*domain_stack)[i], deallocated_dom)
+		{
+			TH_LOG("Failed to match domain %llx (#%d)",
+			       (*domain_stack)[i], i);
+		}
+	}
+	EXPECT_EQ(0, munmap(domain_stack, sizeof(*domain_stack)));
+	EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+				&audit_tv_default, sizeof(audit_tv_default)));
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+struct thread_data {
+	pid_t parent_pid;
+	int ruleset_fd, pipe_child, pipe_parent;
+};
+
+static void *thread_audit_test(void *arg)
+{
+	const struct thread_data *data = (struct thread_data *)arg;
+	uintptr_t err = 0;
+	char buffer;
+
+	/* TGID and TID are different for a second thread. */
+	if (getpid() == gettid()) {
+		err = 1;
+		goto out;
+	}
+
+	if (landlock_restrict_self(data->ruleset_fd, 0)) {
+		err = 2;
+		goto out;
+	}
+
+	if (close(data->ruleset_fd)) {
+		err = 3;
+		goto out;
+	}
+
+	/* Creates a denial to get the domain ID. */
+	if (kill(data->parent_pid, 0) != -1) {
+		err = 4;
+		goto out;
+	}
+
+	if (EPERM != errno) {
+		err = 5;
+		goto out;
+	}
+
+	/* Signals the parent to read denial logs. */
+	if (write(data->pipe_child, ".", 1) != 1) {
+		err = 6;
+		goto out;
+	}
+
+	/* Waits for the parent to update audit filters. */
+	if (read(data->pipe_parent, &buffer, 1) != 1) {
+		err = 7;
+		goto out;
+	}
+
+out:
+	close(data->pipe_child);
+	close(data->pipe_parent);
+	return (void *)err;
+}
+
+/* Checks that the PID tied to a domain is not a TID but the TGID. */
+TEST_F(audit, thread)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.scoped = LANDLOCK_SCOPE_SIGNAL,
+	};
+	__u64 denial_dom = 1;
+	__u64 allocated_dom = 2;
+	__u64 deallocated_dom = 3;
+	pthread_t thread;
+	int pipe_child[2], pipe_parent[2];
+	char buffer;
+	struct thread_data child_data;
+
+	child_data.parent_pid = getppid();
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	child_data.pipe_child = pipe_child[1];
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	child_data.pipe_parent = pipe_parent[0];
+	child_data.ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, child_data.ruleset_fd);
+
+	/* TGID and TID are the same for the initial thread . */
+	EXPECT_EQ(getpid(), gettid());
+	EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, pthread_create(&thread, NULL, thread_audit_test,
+				    &child_data));
+
+	/* Waits for the child to generate a denial. */
+	ASSERT_EQ(1, read(pipe_child[0], &buffer, 1));
+	EXPECT_EQ(0, close(pipe_child[0]));
+
+	/* Matches the signal log to get the domain ID. */
+	EXPECT_EQ(0, matches_log_signal(_metadata, self->audit_fd,
+					child_data.parent_pid, &denial_dom));
+	EXPECT_NE(denial_dom, 1);
+	EXPECT_NE(denial_dom, 0);
+
+	EXPECT_EQ(0, matches_log_domain_allocated(self->audit_fd, getpid(),
+						  &allocated_dom));
+	EXPECT_EQ(denial_dom, allocated_dom);
+
+	/* Updates filter rules to match the drop record. */
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, audit_filter_drop(self->audit_fd, AUDIT_ADD_RULE));
+	EXPECT_EQ(0, audit_filter_exe(self->audit_fd, &self->audit_filter,
+				      AUDIT_DEL_RULE));
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+
+	/* Signals the thread to exit, which will generate a domain deallocation. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+	ASSERT_EQ(0, pthread_join(thread, NULL));
+
+	EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+				&audit_tv_dom_drop, sizeof(audit_tv_dom_drop)));
+	EXPECT_EQ(0, matches_log_domain_deallocated(self->audit_fd, 1,
+						    &deallocated_dom));
+	EXPECT_EQ(denial_dom, deallocated_dom);
+	EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+				&audit_tv_default, sizeof(audit_tv_default)));
+}
+
+FIXTURE(audit_flags)
+{
+	struct audit_filter audit_filter;
+	int audit_fd;
+	__u64 *domain_id;
+};
+
+FIXTURE_VARIANT(audit_flags)
+{
+	const int restrict_flags;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_flags, default) {
+	/* clang-format on */
+	.restrict_flags = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_flags, same_exec_off) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_flags, subdomains_off) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_flags, cross_exec_on) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON,
+};
+
+FIXTURE_SETUP(audit_flags)
+{
+	disable_caps(_metadata);
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd)
+	{
+		const char *error_msg;
+
+		/* kill "$(auditctl -s | sed -ne 's/^pid \([0-9]\+\)$/\1/p')" */
+		if (self->audit_fd == -EEXIST)
+			error_msg = "socket already in use (e.g. auditd)";
+		else
+			error_msg = strerror(-self->audit_fd);
+		TH_LOG("Failed to initialize audit: %s", error_msg);
+	}
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+
+	self->domain_id = mmap(NULL, sizeof(*self->domain_id),
+			       PROT_READ | PROT_WRITE,
+			       MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(MAP_FAILED, self->domain_id);
+	/* Domain IDs are greater or equal to 2^32. */
+	*self->domain_id = 1;
+}
+
+FIXTURE_TEARDOWN(audit_flags)
+{
+	EXPECT_EQ(0, munmap(self->domain_id, sizeof(*self->domain_id)));
+
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, audit_cleanup(self->audit_fd, &self->audit_filter));
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+TEST_F(audit_flags, signal)
+{
+	int status;
+	pid_t child;
+	struct audit_records records;
+	__u64 deallocated_dom = 2;
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.scoped = LANDLOCK_SCOPE_SIGNAL,
+		};
+		int ruleset_fd;
+
+		/* Add filesystem restrictions. */
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+		EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+		ASSERT_EQ(0, landlock_restrict_self(ruleset_fd,
+						    variant->restrict_flags));
+		EXPECT_EQ(0, close(ruleset_fd));
+
+		/* First signal checks to test log entries. */
+		EXPECT_EQ(-1, kill(getppid(), 0));
+		EXPECT_EQ(EPERM, errno);
+
+		if (variant->restrict_flags &
+		    LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF) {
+			EXPECT_EQ(-EAGAIN, matches_log_signal(
+						   _metadata, self->audit_fd,
+						   getppid(), self->domain_id));
+			EXPECT_EQ(*self->domain_id, 1);
+		} else {
+			__u64 allocated_dom = 3;
+
+			EXPECT_EQ(0, matches_log_signal(
+					     _metadata, self->audit_fd,
+					     getppid(), self->domain_id));
+
+			/* Checks domain information records. */
+			EXPECT_EQ(0, matches_log_domain_allocated(
+					     self->audit_fd, getpid(),
+					     &allocated_dom));
+			EXPECT_NE(*self->domain_id, 1);
+			EXPECT_NE(*self->domain_id, 0);
+			EXPECT_EQ(*self->domain_id, allocated_dom);
+		}
+
+		/* Second signal checks to test audit_count_records(). */
+		EXPECT_EQ(-1, kill(getppid(), 0));
+		EXPECT_EQ(EPERM, errno);
+
+		/* Makes sure there is no superfluous logged records. */
+		EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+		if (variant->restrict_flags &
+		    LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF) {
+			EXPECT_EQ(0, records.access);
+		} else {
+			EXPECT_EQ(1, records.access);
+		}
+		EXPECT_EQ(0, records.domain);
+
+		/* Updates filter rules to match the drop record. */
+		set_cap(_metadata, CAP_AUDIT_CONTROL);
+		EXPECT_EQ(0, audit_filter_drop(self->audit_fd, AUDIT_ADD_RULE));
+		EXPECT_EQ(0,
+			  audit_filter_exe(self->audit_fd, &self->audit_filter,
+					   AUDIT_DEL_RULE));
+		clear_cap(_metadata, CAP_AUDIT_CONTROL);
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+
+	if (variant->restrict_flags &
+	    LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF) {
+		EXPECT_EQ(-EAGAIN,
+			  matches_log_domain_deallocated(self->audit_fd, 0,
+							 &deallocated_dom));
+		EXPECT_EQ(deallocated_dom, 2);
+	} else {
+		EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+					&audit_tv_dom_drop,
+					sizeof(audit_tv_dom_drop)));
+		EXPECT_EQ(0, matches_log_domain_deallocated(self->audit_fd, 2,
+							    &deallocated_dom));
+		EXPECT_NE(deallocated_dom, 2);
+		EXPECT_NE(deallocated_dom, 0);
+		EXPECT_EQ(deallocated_dom, *self->domain_id);
+		EXPECT_EQ(0, setsockopt(self->audit_fd, SOL_SOCKET, SO_RCVTIMEO,
+					&audit_tv_default,
+					sizeof(audit_tv_default)));
+	}
+}
+
+static int matches_log_fs_read_root(int audit_fd)
+{
+	return audit_match_record(
+		audit_fd, AUDIT_LANDLOCK_ACCESS,
+		REGEX_LANDLOCK_PREFIX
+		" blockers=fs\\.read_dir path=\"/\" dev=\"[^\"]\\+\" ino=[0-9]\\+$",
+		NULL);
+}
+
+FIXTURE(audit_exec)
+{
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_VARIANT(audit_exec)
+{
+	const int restrict_flags;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_exec, default) {
+	/* clang-format on */
+	.restrict_flags = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_exec, same_exec_off) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_exec, subdomains_off) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_exec, cross_exec_on) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit_exec, subdomains_off_and_cross_exec_on) {
+	/* clang-format on */
+	.restrict_flags = LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF |
+			  LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON,
+};
+
+FIXTURE_SETUP(audit_exec)
+{
+	disable_caps(_metadata);
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+
+	self->audit_fd = audit_init();
+	EXPECT_LE(0, self->audit_fd)
+	{
+		const char *error_msg;
+
+		/* kill "$(auditctl -s | sed -ne 's/^pid \([0-9]\+\)$/\1/p')" */
+		if (self->audit_fd == -EEXIST)
+			error_msg = "socket already in use (e.g. auditd)";
+		else
+			error_msg = strerror(-self->audit_fd);
+		TH_LOG("Failed to initialize audit: %s", error_msg);
+	}
+
+	/* Applies test filter for the bin_wait_pipe_sandbox program. */
+	EXPECT_EQ(0, audit_init_filter_exe(&self->audit_filter,
+					   bin_wait_pipe_sandbox));
+	EXPECT_EQ(0, audit_filter_exe(self->audit_fd, &self->audit_filter,
+				      AUDIT_ADD_RULE));
+
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+FIXTURE_TEARDOWN(audit_exec)
+{
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, audit_filter_exe(self->audit_fd, &self->audit_filter,
+				      AUDIT_DEL_RULE));
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, close(self->audit_fd));
+}
+
+TEST_F(audit_exec, signal_and_open)
+{
+	struct audit_records records;
+	int pipe_child[2], pipe_parent[2];
+	char buf_parent;
+	pid_t child;
+	int status;
+
+	ASSERT_EQ(0, pipe2(pipe_child, 0));
+	ASSERT_EQ(0, pipe2(pipe_parent, 0));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		const struct landlock_ruleset_attr layer1 = {
+			.scoped = LANDLOCK_SCOPE_SIGNAL,
+		};
+		char pipe_child_str[12], pipe_parent_str[12];
+		char *const argv[] = { (char *)bin_wait_pipe_sandbox,
+				       pipe_child_str, pipe_parent_str, NULL };
+		int ruleset_fd;
+
+		/* Passes the pipe FDs to the executed binary. */
+		EXPECT_EQ(0, close(pipe_child[0]));
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		snprintf(pipe_child_str, sizeof(pipe_child_str), "%d",
+			 pipe_child[1]);
+		snprintf(pipe_parent_str, sizeof(pipe_parent_str), "%d",
+			 pipe_parent[0]);
+
+		ruleset_fd =
+			landlock_create_ruleset(&layer1, sizeof(layer1), 0);
+		if (ruleset_fd < 0) {
+			perror("Failed to create a ruleset");
+			_exit(1);
+		}
+		prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+		if (landlock_restrict_self(ruleset_fd,
+					   variant->restrict_flags)) {
+			perror("Failed to restrict self");
+			_exit(1);
+		}
+		close(ruleset_fd);
+
+		ASSERT_EQ(0, execve(argv[0], argv, NULL))
+		{
+			TH_LOG("Failed to execute \"%s\": %s", argv[0],
+			       strerror(errno));
+		};
+		_exit(1);
+		return;
+	}
+
+	EXPECT_EQ(0, close(pipe_child[1]));
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	/* Waits for the child. */
+	EXPECT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests that there was no denial until now. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+
+	/*
+	 * Wait for the child to do a first denied action by layer1 and
+	 * sandbox itself with layer2.
+	 */
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests that the audit record only matches the child. */
+	if (variant->restrict_flags & LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON) {
+		/* Matches the current domain. */
+		EXPECT_EQ(0, matches_log_signal(_metadata, self->audit_fd,
+						getpid(), NULL));
+	}
+
+	/* Checks that we didn't miss anything. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+
+	/*
+	 * Wait for the child to do a second denied action by layer1 and
+	 * layer2, and sandbox itself with layer3.
+	 */
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests that the audit record only matches the child. */
+	if (variant->restrict_flags & LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON) {
+		/* Matches the current domain. */
+		EXPECT_EQ(0, matches_log_signal(_metadata, self->audit_fd,
+						getpid(), NULL));
+	}
+
+	if (!(variant->restrict_flags &
+	      LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF)) {
+		/* Matches the child domain. */
+		EXPECT_EQ(0, matches_log_fs_read_root(self->audit_fd));
+	}
+
+	/* Checks that we didn't miss anything. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+
+	/* Waits for the child to terminate. */
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	ASSERT_EQ(1, WIFEXITED(status));
+	ASSERT_EQ(0, WEXITSTATUS(status));
+
+	/* Tests that the audit record only matches the child. */
+	if (!(variant->restrict_flags &
+	      LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF)) {
+		/*
+		 * Matches the child domains, which tests that the
+		 * llcred->domain_exec bitmask is correctly updated with a new
+		 * domain.
+		 */
+		EXPECT_EQ(0, matches_log_fs_read_root(self->audit_fd));
+		EXPECT_EQ(0, matches_log_signal(_metadata, self->audit_fd,
+						getpid(), NULL));
+	}
+
+	/* Checks that we didn't miss anything. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/base_test.c b/tools/testing/selftests/landlock/base_test.c
new file mode 100644
index 000000000000..7b69002239d7
--- /dev/null
+++ b/tools/testing/selftests/landlock/base_test.c
@@ -0,0 +1,529 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Common user space base
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2019-2020 ANSSI
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/keyctl.h>
+#include <linux/landlock.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include "common.h"
+
+#ifndef O_PATH
+#define O_PATH 010000000
+#endif
+
+TEST(inconsistent_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	char *const buf = malloc(page_size + 1);
+	struct landlock_ruleset_attr *const ruleset_attr = (void *)buf;
+
+	ASSERT_NE(NULL, buf);
+
+	/* Checks copy_from_user(). */
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, 0, 0));
+	/* The size if less than sizeof(struct landlock_attr_enforce). */
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, 1, 0));
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, 7, 0));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, 1, 0));
+	/* The size if less than sizeof(struct landlock_attr_enforce). */
+	ASSERT_EQ(EFAULT, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(
+			      NULL, sizeof(struct landlock_ruleset_attr), 0));
+	ASSERT_EQ(EFAULT, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, page_size + 1, 0));
+	ASSERT_EQ(E2BIG, errno);
+
+	/* Checks minimal valid attribute size. */
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, 8, 0));
+	ASSERT_EQ(ENOMSG, errno);
+	ASSERT_EQ(-1, landlock_create_ruleset(
+			      ruleset_attr,
+			      sizeof(struct landlock_ruleset_attr), 0));
+	ASSERT_EQ(ENOMSG, errno);
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, page_size, 0));
+	ASSERT_EQ(ENOMSG, errno);
+
+	/* Checks non-zero value. */
+	buf[page_size - 2] = '.';
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, page_size, 0));
+	ASSERT_EQ(E2BIG, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(ruleset_attr, page_size + 1, 0));
+	ASSERT_EQ(E2BIG, errno);
+
+	free(buf);
+}
+
+TEST(abi_version)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE,
+	};
+	ASSERT_EQ(7, landlock_create_ruleset(NULL, 0,
+					     LANDLOCK_CREATE_RULESET_VERSION));
+
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, 0,
+					      LANDLOCK_CREATE_RULESET_VERSION));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, sizeof(ruleset_attr),
+					      LANDLOCK_CREATE_RULESET_VERSION));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1,
+		  landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr),
+					  LANDLOCK_CREATE_RULESET_VERSION));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, 0,
+					      LANDLOCK_CREATE_RULESET_VERSION |
+						      1 << 31));
+	ASSERT_EQ(EINVAL, errno);
+}
+
+/*
+ * Old source trees might not have the set of Kselftest fixes related to kernel
+ * UAPI headers.
+ */
+#ifndef LANDLOCK_CREATE_RULESET_ERRATA
+#define LANDLOCK_CREATE_RULESET_ERRATA (1U << 1)
+#endif
+
+TEST(errata)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE,
+	};
+	int errata;
+
+	errata = landlock_create_ruleset(NULL, 0,
+					 LANDLOCK_CREATE_RULESET_ERRATA);
+	/* The errata bitmask will not be backported to tests. */
+	ASSERT_LE(0, errata);
+	TH_LOG("errata: 0x%x", errata);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, 0,
+					      LANDLOCK_CREATE_RULESET_ERRATA));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, sizeof(ruleset_attr),
+					      LANDLOCK_CREATE_RULESET_ERRATA));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1,
+		  landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr),
+					  LANDLOCK_CREATE_RULESET_ERRATA));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(
+			      NULL, 0,
+			      LANDLOCK_CREATE_RULESET_VERSION |
+				      LANDLOCK_CREATE_RULESET_ERRATA));
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, 0,
+					      LANDLOCK_CREATE_RULESET_ERRATA |
+						      1 << 31));
+	ASSERT_EQ(EINVAL, errno);
+}
+
+/* Tests ordering of syscall argument checks. */
+TEST(create_ruleset_checks_ordering)
+{
+	const int last_flag = LANDLOCK_CREATE_RULESET_ERRATA;
+	const int invalid_flag = last_flag << 1;
+	int ruleset_fd;
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE,
+	};
+
+	/* Checks priority for invalid flags. */
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, 0, invalid_flag));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, 0, invalid_flag));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1, landlock_create_ruleset(NULL, sizeof(ruleset_attr),
+					      invalid_flag));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(-1,
+		  landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr),
+					  invalid_flag));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* Checks too big ruleset_attr size. */
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, -1, 0));
+	ASSERT_EQ(E2BIG, errno);
+
+	/* Checks too small ruleset_attr size. */
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, 0, 0));
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr, 1, 0));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* Checks valid call. */
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+/* Tests ordering of syscall argument checks. */
+TEST(add_rule_checks_ordering)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_EXECUTE,
+	};
+	struct landlock_path_beneath_attr path_beneath_attr = {
+		.allowed_access = LANDLOCK_ACCESS_FS_EXECUTE,
+		.parent_fd = -1,
+	};
+	const int ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Checks invalid flags. */
+	ASSERT_EQ(-1, landlock_add_rule(-1, 0, NULL, 1));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* Checks invalid ruleset FD. */
+	ASSERT_EQ(-1, landlock_add_rule(-1, 0, NULL, 0));
+	ASSERT_EQ(EBADF, errno);
+
+	/* Checks invalid rule type. */
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, 0, NULL, 0));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* Checks invalid rule attr. */
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					NULL, 0));
+	ASSERT_EQ(EFAULT, errno);
+
+	/* Checks invalid path_beneath.parent_fd. */
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath_attr, 0));
+	ASSERT_EQ(EBADF, errno);
+
+	/* Checks valid call. */
+	path_beneath_attr.parent_fd =
+		open("/tmp", O_PATH | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath_attr.parent_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath_attr, 0));
+	ASSERT_EQ(0, close(path_beneath_attr.parent_fd));
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+/* Tests ordering of syscall argument and permission checks. */
+TEST(restrict_self_checks_ordering)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_EXECUTE,
+	};
+	struct landlock_path_beneath_attr path_beneath_attr = {
+		.allowed_access = LANDLOCK_ACCESS_FS_EXECUTE,
+		.parent_fd = -1,
+	};
+	const int ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+
+	ASSERT_LE(0, ruleset_fd);
+	path_beneath_attr.parent_fd =
+		open("/tmp", O_PATH | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath_attr.parent_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath_attr, 0));
+	ASSERT_EQ(0, close(path_beneath_attr.parent_fd));
+
+	/* Checks unprivileged enforcement without no_new_privs. */
+	drop_caps(_metadata);
+	ASSERT_EQ(-1, landlock_restrict_self(-1, -1));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, landlock_restrict_self(-1, 0));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, landlock_restrict_self(ruleset_fd, 0));
+	ASSERT_EQ(EPERM, errno);
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+
+	/* Checks invalid flags. */
+	ASSERT_EQ(-1, landlock_restrict_self(-1, -1));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* Checks invalid ruleset FD. */
+	ASSERT_EQ(-1, landlock_restrict_self(-1, 0));
+	ASSERT_EQ(EBADF, errno);
+
+	/* Checks valid call. */
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST(restrict_self_fd)
+{
+	int fd;
+
+	fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+
+	EXPECT_EQ(-1, landlock_restrict_self(fd, 0));
+	EXPECT_EQ(EBADFD, errno);
+}
+
+TEST(restrict_self_fd_flags)
+{
+	int fd;
+
+	fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+
+	/*
+	 * LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF accepts -1 but not any file
+	 * descriptor.
+	 */
+	EXPECT_EQ(-1, landlock_restrict_self(
+			      fd, LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF));
+	EXPECT_EQ(EBADFD, errno);
+}
+
+TEST(restrict_self_flags)
+{
+	const __u32 last_flag = LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF;
+
+	/* Tests invalid flag combinations. */
+
+	EXPECT_EQ(-1, landlock_restrict_self(-1, last_flag << 1));
+	EXPECT_EQ(EINVAL, errno);
+
+	EXPECT_EQ(-1, landlock_restrict_self(-1, -1));
+	EXPECT_EQ(EINVAL, errno);
+
+	/* Tests valid flag combinations. */
+
+	EXPECT_EQ(-1, landlock_restrict_self(-1, 0));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(-1, landlock_restrict_self(
+			      -1, LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(-1,
+		  landlock_restrict_self(
+			  -1,
+			  LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF |
+				  LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(-1,
+		  landlock_restrict_self(
+			  -1,
+			  LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON |
+				  LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(-1, landlock_restrict_self(
+			      -1, LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(-1,
+		  landlock_restrict_self(
+			  -1, LANDLOCK_RESTRICT_SELF_LOG_SAME_EXEC_OFF |
+				      LANDLOCK_RESTRICT_SELF_LOG_NEW_EXEC_ON));
+	EXPECT_EQ(EBADF, errno);
+
+	/* Tests with an invalid ruleset_fd. */
+
+	EXPECT_EQ(-1, landlock_restrict_self(
+			      -2, LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF));
+	EXPECT_EQ(EBADF, errno);
+
+	EXPECT_EQ(0, landlock_restrict_self(
+			     -1, LANDLOCK_RESTRICT_SELF_LOG_SUBDOMAINS_OFF));
+}
+
+TEST(ruleset_fd_io)
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE,
+	};
+	int ruleset_fd;
+	char buf;
+
+	drop_caps(_metadata);
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(-1, write(ruleset_fd, ".", 1));
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(-1, read(ruleset_fd, &buf, 1));
+	ASSERT_EQ(EINVAL, errno);
+
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+/* Tests enforcement of a ruleset FD transferred through a UNIX socket. */
+TEST(ruleset_fd_transfer)
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR,
+	};
+	struct landlock_path_beneath_attr path_beneath_attr = {
+		.allowed_access = LANDLOCK_ACCESS_FS_READ_DIR,
+	};
+	int ruleset_fd_tx, dir_fd;
+	int socket_fds[2];
+	pid_t child;
+	int status;
+
+	drop_caps(_metadata);
+
+	/* Creates a test ruleset with a simple rule. */
+	ruleset_fd_tx =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd_tx);
+	path_beneath_attr.parent_fd =
+		open("/tmp", O_PATH | O_NOFOLLOW | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath_attr.parent_fd);
+	ASSERT_EQ(0,
+		  landlock_add_rule(ruleset_fd_tx, LANDLOCK_RULE_PATH_BENEATH,
+				    &path_beneath_attr, 0));
+	ASSERT_EQ(0, close(path_beneath_attr.parent_fd));
+
+	/* Sends the ruleset FD over a socketpair and then close it. */
+	ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0,
+				socket_fds));
+	ASSERT_EQ(0, send_fd(socket_fds[0], ruleset_fd_tx));
+	ASSERT_EQ(0, close(socket_fds[0]));
+	ASSERT_EQ(0, close(ruleset_fd_tx));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		const int ruleset_fd_rx = recv_fd(socket_fds[1]);
+
+		ASSERT_LE(0, ruleset_fd_rx);
+		ASSERT_EQ(0, close(socket_fds[1]));
+
+		/* Enforces the received ruleset on the child. */
+		ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+		ASSERT_EQ(0, landlock_restrict_self(ruleset_fd_rx, 0));
+		ASSERT_EQ(0, close(ruleset_fd_rx));
+
+		/* Checks that the ruleset enforcement. */
+		ASSERT_EQ(-1, open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC));
+		ASSERT_EQ(EACCES, errno);
+		dir_fd = open("/tmp", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+		ASSERT_LE(0, dir_fd);
+		ASSERT_EQ(0, close(dir_fd));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	ASSERT_EQ(0, close(socket_fds[1]));
+
+	/* Checks that the parent is unrestricted. */
+	dir_fd = open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, dir_fd);
+	ASSERT_EQ(0, close(dir_fd));
+	dir_fd = open("/tmp", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, dir_fd);
+	ASSERT_EQ(0, close(dir_fd));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	ASSERT_EQ(1, WIFEXITED(status));
+	ASSERT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+}
+
+TEST(cred_transfer)
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR,
+	};
+	int ruleset_fd, dir_fd;
+	pid_t child;
+	int status;
+
+	drop_caps(_metadata);
+
+	dir_fd = open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC);
+	EXPECT_LE(0, dir_fd);
+	EXPECT_EQ(0, close(dir_fd));
+
+	/* Denies opening directories. */
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* Checks ruleset enforcement. */
+	EXPECT_EQ(-1, open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC));
+	EXPECT_EQ(EACCES, errno);
+
+	/* Needed for KEYCTL_SESSION_TO_PARENT permission checks */
+	EXPECT_NE(-1, syscall(__NR_keyctl, KEYCTL_JOIN_SESSION_KEYRING, NULL, 0,
+			      0, 0))
+	{
+		TH_LOG("Failed to join session keyring: %s", strerror(errno));
+	}
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		/* Checks ruleset enforcement. */
+		EXPECT_EQ(-1, open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC));
+		EXPECT_EQ(EACCES, errno);
+
+		/*
+		 * KEYCTL_SESSION_TO_PARENT is a no-op unless we have a
+		 * different session keyring in the child, so make that happen.
+		 */
+		EXPECT_NE(-1, syscall(__NR_keyctl, KEYCTL_JOIN_SESSION_KEYRING,
+				      NULL, 0, 0, 0));
+
+		/*
+		 * KEYCTL_SESSION_TO_PARENT installs credentials on the parent
+		 * that never go through the cred_prepare hook, this path uses
+		 * cred_transfer instead.
+		 */
+		EXPECT_EQ(0, syscall(__NR_keyctl, KEYCTL_SESSION_TO_PARENT, 0,
+				     0, 0, 0));
+
+		/* Re-checks ruleset enforcement. */
+		EXPECT_EQ(-1, open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC));
+		EXPECT_EQ(EACCES, errno);
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	EXPECT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(1, WIFEXITED(status));
+	EXPECT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	/* Re-checks ruleset enforcement. */
+	EXPECT_EQ(-1, open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC));
+	EXPECT_EQ(EACCES, errno);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/common.h b/tools/testing/selftests/landlock/common.h
new file mode 100644
index 000000000000..230b75f6015b
--- /dev/null
+++ b/tools/testing/selftests/landlock/common.h
@@ -0,0 +1,252 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Landlock test helpers
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2019-2020 ANSSI
+ * Copyright © 2021 Microsoft Corporation
+ */
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <linux/securebits.h>
+#include <sys/capability.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+#include "wrappers.h"
+
+#define TMP_DIR "tmp"
+
+/* TEST_F_FORK() should not be used for new tests. */
+#define TEST_F_FORK(fixture_name, test_name) TEST_F(fixture_name, test_name)
+
+static const char bin_sandbox_and_launch[] = "./sandbox-and-launch";
+static const char bin_wait_pipe[] = "./wait-pipe";
+static const char bin_wait_pipe_sandbox[] = "./wait-pipe-sandbox";
+
+static void _init_caps(struct __test_metadata *const _metadata, bool drop_all)
+{
+	cap_t cap_p;
+	/* Only these three capabilities are useful for the tests. */
+	const cap_value_t caps[] = {
+		/* clang-format off */
+		CAP_AUDIT_CONTROL,
+		CAP_DAC_OVERRIDE,
+		CAP_MKNOD,
+		CAP_NET_ADMIN,
+		CAP_NET_BIND_SERVICE,
+		CAP_SETUID,
+		CAP_SYS_ADMIN,
+		CAP_SYS_CHROOT,
+		/* clang-format on */
+	};
+	const unsigned int noroot = SECBIT_NOROOT | SECBIT_NOROOT_LOCKED;
+
+	if ((cap_get_secbits() & noroot) != noroot)
+		EXPECT_EQ(0, cap_set_secbits(noroot));
+
+	cap_p = cap_get_proc();
+	EXPECT_NE(NULL, cap_p);
+	EXPECT_NE(-1, cap_clear(cap_p));
+	if (!drop_all) {
+		EXPECT_NE(-1, cap_set_flag(cap_p, CAP_PERMITTED,
+					   ARRAY_SIZE(caps), caps, CAP_SET));
+	}
+
+	/* Automatically resets ambient capabilities. */
+	EXPECT_NE(-1, cap_set_proc(cap_p))
+	{
+		TH_LOG("Failed to set capabilities: %s", strerror(errno));
+	}
+	EXPECT_NE(-1, cap_free(cap_p));
+
+	/* Quickly checks that ambient capabilities are cleared. */
+	EXPECT_NE(-1, cap_get_ambient(caps[0]));
+}
+
+/* We cannot put such helpers in a library because of kselftest_harness.h . */
+static void __maybe_unused disable_caps(struct __test_metadata *const _metadata)
+{
+	_init_caps(_metadata, false);
+}
+
+static void __maybe_unused drop_caps(struct __test_metadata *const _metadata)
+{
+	_init_caps(_metadata, true);
+}
+
+static void _change_cap(struct __test_metadata *const _metadata,
+			const cap_flag_t flag, const cap_value_t cap,
+			const cap_flag_value_t value)
+{
+	cap_t cap_p;
+
+	cap_p = cap_get_proc();
+	EXPECT_NE(NULL, cap_p);
+	EXPECT_NE(-1, cap_set_flag(cap_p, flag, 1, &cap, value));
+	EXPECT_NE(-1, cap_set_proc(cap_p))
+	{
+		TH_LOG("Failed to set capability %d: %s", cap, strerror(errno));
+	}
+	EXPECT_NE(-1, cap_free(cap_p));
+}
+
+static void __maybe_unused set_cap(struct __test_metadata *const _metadata,
+				   const cap_value_t cap)
+{
+	_change_cap(_metadata, CAP_EFFECTIVE, cap, CAP_SET);
+}
+
+static void __maybe_unused clear_cap(struct __test_metadata *const _metadata,
+				     const cap_value_t cap)
+{
+	_change_cap(_metadata, CAP_EFFECTIVE, cap, CAP_CLEAR);
+}
+
+static void __maybe_unused
+set_ambient_cap(struct __test_metadata *const _metadata, const cap_value_t cap)
+{
+	_change_cap(_metadata, CAP_INHERITABLE, cap, CAP_SET);
+
+	EXPECT_NE(-1, cap_set_ambient(cap, CAP_SET))
+	{
+		TH_LOG("Failed to set ambient capability %d: %s", cap,
+		       strerror(errno));
+	}
+}
+
+static void __maybe_unused clear_ambient_cap(
+	struct __test_metadata *const _metadata, const cap_value_t cap)
+{
+	EXPECT_EQ(1, cap_get_ambient(cap));
+	_change_cap(_metadata, CAP_INHERITABLE, cap, CAP_CLEAR);
+	EXPECT_EQ(0, cap_get_ambient(cap));
+}
+
+/* Receives an FD from a UNIX socket. Returns the received FD, or -errno. */
+static int __maybe_unused recv_fd(int usock)
+{
+	int fd_rx;
+	union {
+		/* Aligned ancillary data buffer. */
+		char buf[CMSG_SPACE(sizeof(fd_rx))];
+		struct cmsghdr _align;
+	} cmsg_rx = {};
+	char data = '\0';
+	struct iovec io = {
+		.iov_base = &data,
+		.iov_len = sizeof(data),
+	};
+	struct msghdr msg = {
+		.msg_iov = &io,
+		.msg_iovlen = 1,
+		.msg_control = &cmsg_rx.buf,
+		.msg_controllen = sizeof(cmsg_rx.buf),
+	};
+	struct cmsghdr *cmsg;
+	int res;
+
+	res = recvmsg(usock, &msg, MSG_CMSG_CLOEXEC);
+	if (res < 0)
+		return -errno;
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	if (cmsg->cmsg_len != CMSG_LEN(sizeof(fd_rx)))
+		return -EIO;
+
+	memcpy(&fd_rx, CMSG_DATA(cmsg), sizeof(fd_rx));
+	return fd_rx;
+}
+
+/* Sends an FD on a UNIX socket. Returns 0 on success or -errno. */
+static int __maybe_unused send_fd(int usock, int fd_tx)
+{
+	union {
+		/* Aligned ancillary data buffer. */
+		char buf[CMSG_SPACE(sizeof(fd_tx))];
+		struct cmsghdr _align;
+	} cmsg_tx = {};
+	char data_tx = '.';
+	struct iovec io = {
+		.iov_base = &data_tx,
+		.iov_len = sizeof(data_tx),
+	};
+	struct msghdr msg = {
+		.msg_iov = &io,
+		.msg_iovlen = 1,
+		.msg_control = &cmsg_tx.buf,
+		.msg_controllen = sizeof(cmsg_tx.buf),
+	};
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+
+	cmsg->cmsg_len = CMSG_LEN(sizeof(fd_tx));
+	cmsg->cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_type = SCM_RIGHTS;
+	memcpy(CMSG_DATA(cmsg), &fd_tx, sizeof(fd_tx));
+
+	if (sendmsg(usock, &msg, 0) < 0)
+		return -errno;
+	return 0;
+}
+
+static void __maybe_unused
+enforce_ruleset(struct __test_metadata *const _metadata, const int ruleset_fd)
+{
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0))
+	{
+		TH_LOG("Failed to enforce ruleset: %s", strerror(errno));
+	}
+}
+
+static void __maybe_unused
+drop_access_rights(struct __test_metadata *const _metadata,
+		   const struct landlock_ruleset_attr *const ruleset_attr)
+{
+	int ruleset_fd;
+
+	ruleset_fd =
+		landlock_create_ruleset(ruleset_attr, sizeof(*ruleset_attr), 0);
+	EXPECT_LE(0, ruleset_fd)
+	{
+		TH_LOG("Failed to create a ruleset: %s", strerror(errno));
+	}
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+struct protocol_variant {
+	int domain;
+	int type;
+	int protocol;
+};
+
+struct service_fixture {
+	struct protocol_variant protocol;
+	/* port is also stored in ipv4_addr.sin_port or ipv6_addr.sin6_port */
+	unsigned short port;
+	union {
+		struct sockaddr_in ipv4_addr;
+		struct sockaddr_in6 ipv6_addr;
+		struct {
+			struct sockaddr_un unix_addr;
+			socklen_t unix_addr_len;
+		};
+	};
+};
+
+static void __maybe_unused set_unix_address(struct service_fixture *const srv,
+					    const unsigned short index)
+{
+	srv->unix_addr.sun_family = AF_UNIX;
+	sprintf(srv->unix_addr.sun_path,
+		"_selftests-landlock-abstract-unix-tid%d-index%d", sys_gettid(),
+		index);
+	srv->unix_addr_len = SUN_LEN(&srv->unix_addr);
+	srv->unix_addr.sun_path[0] = '\0';
+}
diff --git a/tools/testing/selftests/landlock/config b/tools/testing/selftests/landlock/config
new file mode 100644
index 000000000000..8fe9b461b1fd
--- /dev/null
+++ b/tools/testing/selftests/landlock/config
@@ -0,0 +1,19 @@
+CONFIG_AF_UNIX_OOB=y
+CONFIG_AUDIT=y
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_INET=y
+CONFIG_IPV6=y
+CONFIG_KEYS=y
+CONFIG_MPTCP=y
+CONFIG_MPTCP_IPV6=y
+CONFIG_NET=y
+CONFIG_NET_NS=y
+CONFIG_OVERLAY_FS=y
+CONFIG_PROC_FS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_LANDLOCK=y
+CONFIG_SHMEM=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_XATTR=y
diff --git a/tools/testing/selftests/landlock/config.um b/tools/testing/selftests/landlock/config.um
new file mode 100644
index 000000000000..40937c0395d6
--- /dev/null
+++ b/tools/testing/selftests/landlock/config.um
@@ -0,0 +1 @@
+CONFIG_HOSTFS=y
diff --git a/tools/testing/selftests/landlock/fs_test.c b/tools/testing/selftests/landlock/fs_test.c
new file mode 100644
index 000000000000..eee814e09dd7
--- /dev/null
+++ b/tools/testing/selftests/landlock/fs_test.c
@@ -0,0 +1,7650 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Filesystem
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2020 ANSSI
+ * Copyright © 2020-2022 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <asm/termbits.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <linux/fiemap.h>
+#include <linux/landlock.h>
+#include <linux/magic.h>
+#include <sched.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/capability.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/sendfile.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/un.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+
+/*
+ * Intentionally included last to work around header conflict.
+ * See https://sourceware.org/glibc/wiki/Synchronizing_Headers.
+ */
+#include <linux/fs.h>
+#include <linux/mount.h>
+
+/* Defines AT_EXECVE_CHECK without type conflicts. */
+#define _ASM_GENERIC_FCNTL_H
+#include <linux/fcntl.h>
+
+#include "audit.h"
+#include "common.h"
+
+#ifndef renameat2
+int renameat2(int olddirfd, const char *oldpath, int newdirfd,
+	      const char *newpath, unsigned int flags)
+{
+	return syscall(__NR_renameat2, olddirfd, oldpath, newdirfd, newpath,
+		       flags);
+}
+#endif
+
+#ifndef open_tree
+int open_tree(int dfd, const char *filename, unsigned int flags)
+{
+	return syscall(__NR_open_tree, dfd, filename, flags);
+}
+#endif
+
+static int sys_execveat(int dirfd, const char *pathname, char *const argv[],
+			char *const envp[], int flags)
+{
+	return syscall(__NR_execveat, dirfd, pathname, argv, envp, flags);
+}
+
+#ifndef RENAME_EXCHANGE
+#define RENAME_EXCHANGE (1 << 1)
+#endif
+
+static const char bin_true[] = "./true";
+
+/* Paths (sibling number and depth) */
+static const char dir_s1d1[] = TMP_DIR "/s1d1";
+static const char file1_s1d1[] = TMP_DIR "/s1d1/f1";
+static const char file2_s1d1[] = TMP_DIR "/s1d1/f2";
+static const char dir_s1d2[] = TMP_DIR "/s1d1/s1d2";
+static const char file1_s1d2[] = TMP_DIR "/s1d1/s1d2/f1";
+static const char file2_s1d2[] = TMP_DIR "/s1d1/s1d2/f2";
+static const char dir_s1d3[] = TMP_DIR "/s1d1/s1d2/s1d3";
+static const char file1_s1d3[] = TMP_DIR "/s1d1/s1d2/s1d3/f1";
+static const char file2_s1d3[] = TMP_DIR "/s1d1/s1d2/s1d3/f2";
+
+static const char dir_s2d1[] = TMP_DIR "/s2d1";
+static const char file1_s2d1[] = TMP_DIR "/s2d1/f1";
+static const char dir_s2d2[] = TMP_DIR "/s2d1/s2d2";
+static const char file1_s2d2[] = TMP_DIR "/s2d1/s2d2/f1";
+static const char dir_s2d3[] = TMP_DIR "/s2d1/s2d2/s2d3";
+static const char file1_s2d3[] = TMP_DIR "/s2d1/s2d2/s2d3/f1";
+static const char file2_s2d3[] = TMP_DIR "/s2d1/s2d2/s2d3/f2";
+
+static const char dir_s3d1[] = TMP_DIR "/s3d1";
+static const char file1_s3d1[] = TMP_DIR "/s3d1/f1";
+/* dir_s3d2 is a mount point. */
+static const char dir_s3d2[] = TMP_DIR "/s3d1/s3d2";
+static const char dir_s3d3[] = TMP_DIR "/s3d1/s3d2/s3d3";
+static const char file1_s3d3[] = TMP_DIR "/s3d1/s3d2/s3d3/f1";
+static const char dir_s3d4[] = TMP_DIR "/s3d1/s3d2/s3d4";
+static const char file1_s3d4[] = TMP_DIR "/s3d1/s3d2/s3d4/f1";
+
+/*
+ * layout1 hierarchy:
+ *
+ * tmp
+ * ├── s1d1
+ * │   ├── f1
+ * │   ├── f2
+ * │   └── s1d2
+ * │       ├── f1
+ * │       ├── f2
+ * │       └── s1d3
+ * │           ├── f1
+ * │           └── f2
+ * ├── s2d1
+ * │   ├── f1
+ * │   └── s2d2
+ * │       ├── f1
+ * │       └── s2d3
+ * │           ├── f1
+ * │           └── f2
+ * └── s3d1
+ *     ├── f1
+ *     └── s3d2 [mount point]
+ *         ├── s3d3
+ *         │   └── f1
+ *         └── s3d4
+ *             └── f1
+ */
+
+static bool fgrep(FILE *const inf, const char *const str)
+{
+	char line[32];
+	const int slen = strlen(str);
+
+	while (!feof(inf)) {
+		if (!fgets(line, sizeof(line), inf))
+			break;
+		if (strncmp(line, str, slen))
+			continue;
+
+		return true;
+	}
+
+	return false;
+}
+
+static bool supports_filesystem(const char *const filesystem)
+{
+	char str[32];
+	int len;
+	bool res = true;
+	FILE *const inf = fopen("/proc/filesystems", "r");
+
+	/*
+	 * Consider that the filesystem is supported if we cannot get the
+	 * supported ones.
+	 */
+	if (!inf)
+		return true;
+
+	/* filesystem can be null for bind mounts. */
+	if (!filesystem)
+		goto out;
+
+	len = snprintf(str, sizeof(str), "nodev\t%s\n", filesystem);
+	if (len >= sizeof(str))
+		/* Ignores too-long filesystem names. */
+		goto out;
+
+	res = fgrep(inf, str);
+
+out:
+	fclose(inf);
+	return res;
+}
+
+static bool cwd_matches_fs(unsigned int fs_magic)
+{
+	struct statfs statfs_buf;
+
+	if (!fs_magic)
+		return true;
+
+	if (statfs(".", &statfs_buf))
+		return true;
+
+	return statfs_buf.f_type == fs_magic;
+}
+
+static void mkdir_parents(struct __test_metadata *const _metadata,
+			  const char *const path)
+{
+	char *walker;
+	const char *parent;
+	int i, err;
+
+	ASSERT_NE(path[0], '\0');
+	walker = strdup(path);
+	ASSERT_NE(NULL, walker);
+	parent = walker;
+	for (i = 1; walker[i]; i++) {
+		if (walker[i] != '/')
+			continue;
+		walker[i] = '\0';
+		err = mkdir(parent, 0700);
+		ASSERT_FALSE(err && errno != EEXIST)
+		{
+			TH_LOG("Failed to create directory \"%s\": %s", parent,
+			       strerror(errno));
+		}
+		walker[i] = '/';
+	}
+	free(walker);
+}
+
+static void create_directory(struct __test_metadata *const _metadata,
+			     const char *const path)
+{
+	mkdir_parents(_metadata, path);
+	ASSERT_EQ(0, mkdir(path, 0700))
+	{
+		TH_LOG("Failed to create directory \"%s\": %s", path,
+		       strerror(errno));
+	}
+}
+
+static void create_file(struct __test_metadata *const _metadata,
+			const char *const path)
+{
+	mkdir_parents(_metadata, path);
+	ASSERT_EQ(0, mknod(path, S_IFREG | 0700, 0))
+	{
+		TH_LOG("Failed to create file \"%s\": %s", path,
+		       strerror(errno));
+	}
+}
+
+static int remove_path(const char *const path)
+{
+	char *walker;
+	int i, ret, err = 0;
+
+	walker = strdup(path);
+	if (!walker) {
+		err = ENOMEM;
+		goto out;
+	}
+	if (unlink(path) && rmdir(path)) {
+		if (errno != ENOENT && errno != ENOTDIR)
+			err = errno;
+		goto out;
+	}
+	for (i = strlen(walker); i > 0; i--) {
+		if (walker[i] != '/')
+			continue;
+		walker[i] = '\0';
+		ret = rmdir(walker);
+		if (ret) {
+			if (errno != ENOTEMPTY && errno != EBUSY)
+				err = errno;
+			goto out;
+		}
+		if (strcmp(walker, TMP_DIR) == 0)
+			goto out;
+	}
+
+out:
+	free(walker);
+	return err;
+}
+
+struct mnt_opt {
+	const char *const source;
+	const char *const type;
+	const unsigned long flags;
+	const char *const data;
+};
+
+#define MNT_TMP_DATA "size=4m,mode=700"
+
+static const struct mnt_opt mnt_tmp = {
+	.type = "tmpfs",
+	.data = MNT_TMP_DATA,
+};
+
+static int mount_opt(const struct mnt_opt *const mnt, const char *const target)
+{
+	return mount(mnt->source ?: mnt->type, target, mnt->type, mnt->flags,
+		     mnt->data);
+}
+
+static void prepare_layout_opt(struct __test_metadata *const _metadata,
+			       const struct mnt_opt *const mnt)
+{
+	disable_caps(_metadata);
+	umask(0077);
+	create_directory(_metadata, TMP_DIR);
+
+	/*
+	 * Do not pollute the rest of the system: creates a private mount point
+	 * for tests relying on pivot_root(2) and move_mount(2).
+	 */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, unshare(CLONE_NEWNS | CLONE_NEWCGROUP));
+	ASSERT_EQ(0, mount_opt(mnt, TMP_DIR))
+	{
+		TH_LOG("Failed to mount the %s filesystem: %s", mnt->type,
+		       strerror(errno));
+		/*
+		 * FIXTURE_TEARDOWN() is not called when FIXTURE_SETUP()
+		 * failed, so we need to explicitly do a minimal cleanup to
+		 * avoid cascading errors with other tests that don't depend on
+		 * the same filesystem.
+		 */
+		remove_path(TMP_DIR);
+	}
+	ASSERT_EQ(0, mount(NULL, TMP_DIR, NULL, MS_PRIVATE | MS_REC, NULL));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+static void prepare_layout(struct __test_metadata *const _metadata)
+{
+	prepare_layout_opt(_metadata, &mnt_tmp);
+}
+
+static void cleanup_layout(struct __test_metadata *const _metadata)
+{
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	if (umount(TMP_DIR)) {
+		/*
+		 * According to the test environment, the mount point of the
+		 * current directory may be shared or not, which changes the
+		 * visibility of the nested TMP_DIR mount point for the test's
+		 * parent process doing this cleanup.
+		 */
+		ASSERT_EQ(EINVAL, errno);
+	}
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(0, remove_path(TMP_DIR));
+}
+
+/* clang-format off */
+FIXTURE(layout0) {};
+/* clang-format on */
+
+FIXTURE_SETUP(layout0)
+{
+	prepare_layout(_metadata);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout0)
+{
+	cleanup_layout(_metadata);
+}
+
+static void create_layout1(struct __test_metadata *const _metadata)
+{
+	create_file(_metadata, file1_s1d1);
+	create_file(_metadata, file1_s1d2);
+	create_file(_metadata, file1_s1d3);
+	create_file(_metadata, file2_s1d1);
+	create_file(_metadata, file2_s1d2);
+	create_file(_metadata, file2_s1d3);
+
+	create_file(_metadata, file1_s2d1);
+	create_file(_metadata, file1_s2d2);
+	create_file(_metadata, file1_s2d3);
+	create_file(_metadata, file2_s2d3);
+
+	create_file(_metadata, file1_s3d1);
+	create_directory(_metadata, dir_s3d2);
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, dir_s3d2));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	create_file(_metadata, file1_s3d3);
+	create_file(_metadata, file1_s3d4);
+}
+
+static void remove_layout1(struct __test_metadata *const _metadata)
+{
+	EXPECT_EQ(0, remove_path(file2_s1d3));
+	EXPECT_EQ(0, remove_path(file2_s1d2));
+	EXPECT_EQ(0, remove_path(file2_s1d1));
+	EXPECT_EQ(0, remove_path(file1_s1d3));
+	EXPECT_EQ(0, remove_path(file1_s1d2));
+	EXPECT_EQ(0, remove_path(file1_s1d1));
+	EXPECT_EQ(0, remove_path(dir_s1d3));
+
+	EXPECT_EQ(0, remove_path(file2_s2d3));
+	EXPECT_EQ(0, remove_path(file1_s2d3));
+	EXPECT_EQ(0, remove_path(file1_s2d2));
+	EXPECT_EQ(0, remove_path(file1_s2d1));
+	EXPECT_EQ(0, remove_path(dir_s2d2));
+
+	EXPECT_EQ(0, remove_path(file1_s3d1));
+	EXPECT_EQ(0, remove_path(file1_s3d3));
+	EXPECT_EQ(0, remove_path(file1_s3d4));
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	umount(dir_s3d2);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(0, remove_path(dir_s3d2));
+}
+
+/* clang-format off */
+FIXTURE(layout1) {};
+/* clang-format on */
+
+FIXTURE_SETUP(layout1)
+{
+	prepare_layout(_metadata);
+
+	create_layout1(_metadata);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout1)
+{
+	remove_layout1(_metadata);
+
+	cleanup_layout(_metadata);
+}
+
+/*
+ * This helper enables to use the ASSERT_* macros and print the line number
+ * pointing to the test caller.
+ */
+static int test_open_rel(const int dirfd, const char *const path,
+			 const int flags)
+{
+	int fd;
+
+	/* Works with file and directories. */
+	fd = openat(dirfd, path, flags | O_CLOEXEC);
+	if (fd < 0)
+		return errno;
+	/*
+	 * Mixing error codes from close(2) and open(2) should not lead to any
+	 * (access type) confusion for this test.
+	 */
+	if (close(fd) != 0)
+		return errno;
+	return 0;
+}
+
+static int test_open(const char *const path, const int flags)
+{
+	return test_open_rel(AT_FDCWD, path, flags);
+}
+
+TEST_F_FORK(layout1, no_restriction)
+{
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file2_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file2_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(dir_s2d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s2d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s2d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s2d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s2d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s2d3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(dir_s3d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d3, O_RDONLY));
+}
+
+TEST_F_FORK(layout1, inval)
+{
+	struct landlock_path_beneath_attr path_beneath = {
+		.allowed_access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		.parent_fd = -1,
+	};
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE |
+				     LANDLOCK_ACCESS_FS_WRITE_FILE,
+	};
+	int ruleset_fd;
+
+	path_beneath.parent_fd =
+		open(dir_s1d2, O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+
+	ruleset_fd = open(dir_s1d1, O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	/* Returns EBADF because ruleset_fd is not a landlock-ruleset FD. */
+	ASSERT_EQ(EBADF, errno);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ruleset_fd = open(dir_s1d1, O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	/* Returns EBADFD because ruleset_fd is not a valid ruleset. */
+	ASSERT_EQ(EBADFD, errno);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Gets a real ruleset. */
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath, 0));
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+
+	/* Tests without O_PATH. */
+	path_beneath.parent_fd = open(dir_s1d2, O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath, 0));
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+
+	/* Tests with a ruleset FD. */
+	path_beneath.parent_fd = ruleset_fd;
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(EBADFD, errno);
+
+	/* Checks unhandled allowed_access. */
+	path_beneath.parent_fd =
+		open(dir_s1d2, O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+
+	/* Test with legitimate values. */
+	path_beneath.allowed_access |= LANDLOCK_ACCESS_FS_EXECUTE;
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(EINVAL, errno);
+	path_beneath.allowed_access &= ~LANDLOCK_ACCESS_FS_EXECUTE;
+
+	/* Tests with denied-by-default access right. */
+	path_beneath.allowed_access |= LANDLOCK_ACCESS_FS_REFER;
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(EINVAL, errno);
+	path_beneath.allowed_access &= ~LANDLOCK_ACCESS_FS_REFER;
+
+	/* Test with unknown (64-bits) value. */
+	path_beneath.allowed_access |= (1ULL << 60);
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(EINVAL, errno);
+	path_beneath.allowed_access &= ~(1ULL << 60);
+
+	/* Test with no access. */
+	path_beneath.allowed_access = 0;
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(ENOMSG, errno);
+	path_beneath.allowed_access &= ~(1ULL << 60);
+
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+
+	/* Enforces the ruleset. */
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+/* clang-format off */
+
+#define ACCESS_FILE ( \
+	LANDLOCK_ACCESS_FS_EXECUTE | \
+	LANDLOCK_ACCESS_FS_WRITE_FILE | \
+	LANDLOCK_ACCESS_FS_READ_FILE | \
+	LANDLOCK_ACCESS_FS_TRUNCATE | \
+	LANDLOCK_ACCESS_FS_IOCTL_DEV)
+
+#define ACCESS_LAST LANDLOCK_ACCESS_FS_IOCTL_DEV
+
+#define ACCESS_ALL ( \
+	ACCESS_FILE | \
+	LANDLOCK_ACCESS_FS_READ_DIR | \
+	LANDLOCK_ACCESS_FS_REMOVE_DIR | \
+	LANDLOCK_ACCESS_FS_REMOVE_FILE | \
+	LANDLOCK_ACCESS_FS_MAKE_CHAR | \
+	LANDLOCK_ACCESS_FS_MAKE_DIR | \
+	LANDLOCK_ACCESS_FS_MAKE_REG | \
+	LANDLOCK_ACCESS_FS_MAKE_SOCK | \
+	LANDLOCK_ACCESS_FS_MAKE_FIFO | \
+	LANDLOCK_ACCESS_FS_MAKE_BLOCK | \
+	LANDLOCK_ACCESS_FS_MAKE_SYM | \
+	LANDLOCK_ACCESS_FS_REFER)
+
+/* clang-format on */
+
+TEST_F_FORK(layout1, file_and_dir_access_rights)
+{
+	__u64 access;
+	int err;
+	struct landlock_path_beneath_attr path_beneath_file = {},
+					  path_beneath_dir = {};
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = ACCESS_ALL,
+	};
+	const int ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Tests access rights for files. */
+	path_beneath_file.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath_file.parent_fd);
+
+	/* Tests access rights for directories. */
+	path_beneath_dir.parent_fd =
+		open(dir_s1d2, O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath_dir.parent_fd);
+
+	for (access = 1; access <= ACCESS_LAST; access <<= 1) {
+		path_beneath_dir.allowed_access = access;
+		ASSERT_EQ(0, landlock_add_rule(ruleset_fd,
+					       LANDLOCK_RULE_PATH_BENEATH,
+					       &path_beneath_dir, 0));
+
+		path_beneath_file.allowed_access = access;
+		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath_file, 0);
+		if (access & ACCESS_FILE) {
+			ASSERT_EQ(0, err);
+		} else {
+			ASSERT_EQ(-1, err);
+			ASSERT_EQ(EINVAL, errno);
+		}
+	}
+	ASSERT_EQ(0, close(path_beneath_file.parent_fd));
+	ASSERT_EQ(0, close(path_beneath_dir.parent_fd));
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout0, ruleset_with_unknown_access)
+{
+	__u64 access_mask;
+
+	for (access_mask = 1ULL << 63; access_mask != ACCESS_LAST;
+	     access_mask >>= 1) {
+		struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_fs = access_mask,
+		};
+
+		ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr,
+						      sizeof(ruleset_attr), 0));
+		ASSERT_EQ(EINVAL, errno);
+	}
+}
+
+TEST_F_FORK(layout0, rule_with_unknown_access)
+{
+	__u64 access;
+	struct landlock_path_beneath_attr path_beneath = {};
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = ACCESS_ALL,
+	};
+	const int ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	path_beneath.parent_fd =
+		open(TMP_DIR, O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+
+	for (access = 1ULL << 63; access != ACCESS_LAST; access >>= 1) {
+		path_beneath.allowed_access = access;
+		EXPECT_EQ(-1, landlock_add_rule(ruleset_fd,
+						LANDLOCK_RULE_PATH_BENEATH,
+						&path_beneath, 0));
+		EXPECT_EQ(EINVAL, errno);
+	}
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, rule_with_unhandled_access)
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_EXECUTE,
+	};
+	struct landlock_path_beneath_attr path_beneath = {};
+	int ruleset_fd;
+	__u64 access;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	path_beneath.parent_fd = open(file1_s1d2, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+
+	for (access = 1; access > 0; access <<= 1) {
+		int err;
+
+		path_beneath.allowed_access = access;
+		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0);
+		if (access == ruleset_attr.handled_access_fs) {
+			EXPECT_EQ(0, err);
+		} else {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EINVAL, errno);
+		}
+	}
+
+	EXPECT_EQ(0, close(path_beneath.parent_fd));
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+static void add_path_beneath(struct __test_metadata *const _metadata,
+			     const int ruleset_fd, const __u64 allowed_access,
+			     const char *const path)
+{
+	struct landlock_path_beneath_attr path_beneath = {
+		.allowed_access = allowed_access,
+	};
+
+	path_beneath.parent_fd = open(path, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd)
+	{
+		TH_LOG("Failed to open directory \"%s\": %s", path,
+		       strerror(errno));
+	}
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath, 0))
+	{
+		TH_LOG("Failed to update the ruleset with \"%s\": %s", path,
+		       strerror(errno));
+	}
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+}
+
+struct rule {
+	const char *path;
+	__u64 access;
+};
+
+/* clang-format off */
+
+#define ACCESS_RO ( \
+	LANDLOCK_ACCESS_FS_READ_FILE | \
+	LANDLOCK_ACCESS_FS_READ_DIR)
+
+#define ACCESS_RW ( \
+	ACCESS_RO | \
+	LANDLOCK_ACCESS_FS_WRITE_FILE)
+
+/* clang-format on */
+
+static int create_ruleset(struct __test_metadata *const _metadata,
+			  const __u64 handled_access_fs,
+			  const struct rule rules[])
+{
+	int ruleset_fd, i;
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = handled_access_fs,
+	};
+
+	ASSERT_NE(NULL, rules)
+	{
+		TH_LOG("No rule list");
+	}
+	ASSERT_NE(NULL, rules[0].path)
+	{
+		TH_LOG("Empty rule list");
+	}
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd)
+	{
+		TH_LOG("Failed to create a ruleset: %s", strerror(errno));
+	}
+
+	for (i = 0; rules[i].path; i++) {
+		if (!rules[i].access)
+			continue;
+
+		add_path_beneath(_metadata, ruleset_fd, rules[i].access,
+				 rules[i].path);
+	}
+	return ruleset_fd;
+}
+
+TEST_F_FORK(layout0, proc_nsfs)
+{
+	const struct rule rules[] = {
+		{
+			.path = "/dev/null",
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	struct landlock_path_beneath_attr path_beneath;
+	const int ruleset_fd = create_ruleset(
+		_metadata, rules[0].access | LANDLOCK_ACCESS_FS_READ_DIR,
+		rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(0, test_open("/proc/self/ns/mnt", O_RDONLY));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	ASSERT_EQ(EACCES, test_open("/", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open("/dev", O_RDONLY));
+	ASSERT_EQ(0, test_open("/dev/null", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open("/dev/full", O_RDONLY));
+
+	ASSERT_EQ(EACCES, test_open("/proc", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open("/proc/self", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open("/proc/self/ns", O_RDONLY));
+	/*
+	 * Because nsfs is an internal filesystem, /proc/self/ns/mnt is a
+	 * disconnected path.  Such path cannot be identified and must then be
+	 * allowed.
+	 */
+	ASSERT_EQ(0, test_open("/proc/self/ns/mnt", O_RDONLY));
+
+	/*
+	 * Checks that it is not possible to add nsfs-like filesystem
+	 * references to a ruleset.
+	 */
+	path_beneath.allowed_access = LANDLOCK_ACCESS_FS_READ_FILE |
+				      LANDLOCK_ACCESS_FS_WRITE_FILE,
+	path_beneath.parent_fd = open("/proc/self/ns/mnt", O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+	ASSERT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+					&path_beneath, 0));
+	ASSERT_EQ(EBADFD, errno);
+	ASSERT_EQ(0, close(path_beneath.parent_fd));
+}
+
+TEST_F_FORK(layout0, unpriv)
+{
+	const struct rule rules[] = {
+		{
+			.path = TMP_DIR,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	drop_caps(_metadata);
+
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RO, rules);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(-1, landlock_restrict_self(ruleset_fd, 0));
+	ASSERT_EQ(EPERM, errno);
+
+	/* enforce_ruleset() calls prctl(no_new_privs). */
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, effective_access)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = ACCESS_RO,
+		},
+		{
+			.path = file1_s2d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+	char buf;
+	int reg_fd;
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Tests on a directory (with or without O_PATH). */
+	ASSERT_EQ(EACCES, test_open("/", O_RDONLY));
+	ASSERT_EQ(0, test_open("/", O_RDONLY | O_PATH));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY | O_PATH));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY | O_PATH));
+
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+
+	/* Tests on a file (with or without O_PATH). */
+	ASSERT_EQ(EACCES, test_open(dir_s2d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s2d2, O_RDONLY | O_PATH));
+
+	ASSERT_EQ(0, test_open(file1_s2d2, O_RDONLY));
+
+	/* Checks effective read and write actions. */
+	reg_fd = open(file1_s2d2, O_RDWR | O_CLOEXEC);
+	ASSERT_LE(0, reg_fd);
+	ASSERT_EQ(1, write(reg_fd, ".", 1));
+	ASSERT_LE(0, lseek(reg_fd, 0, SEEK_SET));
+	ASSERT_EQ(1, read(reg_fd, &buf, 1));
+	ASSERT_EQ('.', buf);
+	ASSERT_EQ(0, close(reg_fd));
+
+	/* Just in case, double-checks effective actions. */
+	reg_fd = open(file1_s2d2, O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, reg_fd);
+	ASSERT_EQ(-1, write(reg_fd, &buf, 1));
+	ASSERT_EQ(EBADF, errno);
+	ASSERT_EQ(0, close(reg_fd));
+}
+
+TEST_F_FORK(layout1, unhandled_access)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	/* Here, we only handle read accesses, not write accesses. */
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RO, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Because the policy does not handle LANDLOCK_ACCESS_FS_WRITE_FILE,
+	 * opening for write-only should be allowed, but not read-write.
+	 */
+	ASSERT_EQ(0, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+
+	ASSERT_EQ(0, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDWR));
+}
+
+TEST_F_FORK(layout1, ruleset_overlap)
+{
+	const struct rule rules[] = {
+		/* These rules should be ORed among them. */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_READ_DIR,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks s1d1 hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d2 hierarchy. */
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d3 hierarchy. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+}
+
+TEST_F_FORK(layout1, layer_rule_unions)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		/* dir_s1d3 should allow READ_FILE and WRITE_FILE (O_RDWR). */
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const struct rule layer2[] = {
+		/* Doesn't change anything from layer1. */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const struct rule layer3[] = {
+		/* Only allows write (but not read) to dir_s1d3. */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks s1d1 hierarchy with layer1. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d2 hierarchy with layer1. */
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d3 hierarchy with layer1. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_WRONLY));
+	/* dir_s1d3 should allow READ_FILE and WRITE_FILE (O_RDWR). */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Doesn't change anything from layer1. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer2);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks s1d1 hierarchy with layer2. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d2 hierarchy with layer2. */
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d3 hierarchy with layer2. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_WRONLY));
+	/* dir_s1d3 should allow READ_FILE and WRITE_FILE (O_RDWR). */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Only allows write (but not read) to dir_s1d3. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer3);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks s1d1 hierarchy with layer3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d2 hierarchy with layer3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Checks s1d3 hierarchy with layer3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_WRONLY));
+	/* dir_s1d3 should now deny READ_FILE and WRITE_FILE (O_RDWR). */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+}
+
+TEST_F_FORK(layout1, non_overlapping_accesses)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{},
+	};
+	const struct rule layer2[] = {
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+
+	ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_MAKE_REG, layer1);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, mknod(file1_s1d1, S_IFREG | 0700, 0));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, mknod(file1_s1d2, S_IFREG | 0700, 0));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_REMOVE_FILE,
+				    layer2);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Unchanged accesses for file creation. */
+	ASSERT_EQ(-1, mknod(file1_s1d1, S_IFREG | 0700, 0));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, mknod(file1_s1d2, S_IFREG | 0700, 0));
+
+	/* Checks file removing. */
+	ASSERT_EQ(-1, unlink(file1_s1d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, unlink(file1_s1d3));
+}
+
+TEST_F_FORK(layout1, interleaved_masked_accesses)
+{
+	/*
+	 * Checks overly restrictive rules:
+	 * layer 1: allows R   s1d1/s1d2/s1d3/file1
+	 * layer 2: allows RW  s1d1/s1d2/s1d3
+	 *          allows  W  s1d1/s1d2
+	 *          denies R   s1d1/s1d2
+	 * layer 3: allows R   s1d1
+	 * layer 4: allows R   s1d1/s1d2
+	 *          denies  W  s1d1/s1d2
+	 * layer 5: allows R   s1d1/s1d2
+	 * layer 6: allows   X ----
+	 * layer 7: allows  W  s1d1/s1d2
+	 *          denies R   s1d1/s1d2
+	 */
+	const struct rule layer1_read[] = {
+		/* Allows read access to file1_s1d3 with the first layer. */
+		{
+			.path = file1_s1d3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	/* First rule with write restrictions. */
+	const struct rule layer2_read_write[] = {
+		/* Start by granting read-write access via its parent directory... */
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		/* ...but also denies read access via its grandparent directory. */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const struct rule layer3_read[] = {
+		/* Allows read access via its great-grandparent directory. */
+		{
+			.path = dir_s1d1,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const struct rule layer4_read_write[] = {
+		/*
+		 * Try to confuse the deny access by denying write (but not
+		 * read) access via its grandparent directory.
+		 */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const struct rule layer5_read[] = {
+		/*
+		 * Try to override layer2's deny read access by explicitly
+		 * allowing read access via file1_s1d3's grandparent.
+		 */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const struct rule layer6_execute[] = {
+		/*
+		 * Restricts an unrelated file hierarchy with a new access
+		 * (non-overlapping) type.
+		 */
+		{
+			.path = dir_s2d1,
+			.access = LANDLOCK_ACCESS_FS_EXECUTE,
+		},
+		{},
+	};
+	const struct rule layer7_read_write[] = {
+		/*
+		 * Finally, denies read access to file1_s1d3 via its
+		 * grandparent.
+		 */
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_FILE,
+				    layer1_read);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that read access is granted for file1_s1d3 with layer 1. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file2_s1d3, O_WRONLY));
+
+	ruleset_fd = create_ruleset(_metadata,
+				    LANDLOCK_ACCESS_FS_READ_FILE |
+					    LANDLOCK_ACCESS_FS_WRITE_FILE,
+				    layer2_read_write);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that previous access rights are unchanged with layer 2. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file2_s1d3, O_WRONLY));
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_FILE,
+				    layer3_read);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that previous access rights are unchanged with layer 3. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file2_s1d3, O_WRONLY));
+
+	/* This time, denies write access for the file hierarchy. */
+	ruleset_fd = create_ruleset(_metadata,
+				    LANDLOCK_ACCESS_FS_READ_FILE |
+					    LANDLOCK_ACCESS_FS_WRITE_FILE,
+				    layer4_read_write);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Checks that the only change with layer 4 is that write access is
+	 * denied.
+	 */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_WRONLY));
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_FILE,
+				    layer5_read);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that previous access rights are unchanged with layer 5. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_EXECUTE,
+				    layer6_execute);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that previous access rights are unchanged with layer 6. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+
+	ruleset_fd = create_ruleset(_metadata,
+				    LANDLOCK_ACCESS_FS_READ_FILE |
+					    LANDLOCK_ACCESS_FS_WRITE_FILE,
+				    layer7_read_write);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks read access is now denied with layer 7. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(file2_s1d3, O_RDONLY));
+}
+
+TEST_F_FORK(layout1, inherit_subset)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_READ_DIR,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* Write access is forbidden. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	/* Readdir access is allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* Write access is forbidden. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	/* Readdir access is allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/*
+	 * Tests shared rule extension: the following rules should not grant
+	 * any new access, only remove some.  Once enforced, these rules are
+	 * ANDed with the previous ones.
+	 */
+	add_path_beneath(_metadata, ruleset_fd, LANDLOCK_ACCESS_FS_WRITE_FILE,
+			 dir_s1d2);
+	/*
+	 * According to ruleset_fd, dir_s1d2 should now have the
+	 * LANDLOCK_ACCESS_FS_READ_FILE and LANDLOCK_ACCESS_FS_WRITE_FILE
+	 * access rights (even if this directory is opened a second time).
+	 * However, when enforcing this updated ruleset, the ruleset tied to
+	 * the current process (i.e. its domain) will still only have the
+	 * dir_s1d2 with LANDLOCK_ACCESS_FS_READ_FILE and
+	 * LANDLOCK_ACCESS_FS_READ_DIR accesses, but
+	 * LANDLOCK_ACCESS_FS_WRITE_FILE must not be allowed because it would
+	 * be a privilege escalation.
+	 */
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	/* Same tests and results as above. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d2. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	/* Readdir access is still allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	/* Readdir access is still allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/*
+	 * Try to get more privileges by adding new access rights to the parent
+	 * directory: dir_s1d1.
+	 */
+	add_path_beneath(_metadata, ruleset_fd, ACCESS_RW, dir_s1d1);
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	/* Same tests and results as above. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d2. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	/* Readdir access is still allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	/* Readdir access is still allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/*
+	 * Now, dir_s1d3 get a new rule tied to it, only allowing
+	 * LANDLOCK_ACCESS_FS_WRITE_FILE.  The (kernel internal) difference is
+	 * that there was no rule tied to it before.
+	 */
+	add_path_beneath(_metadata, ruleset_fd, LANDLOCK_ACCESS_FS_WRITE_FILE,
+			 dir_s1d3);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Same tests and results as above, except for open(dir_s1d3) which is
+	 * now denied because the new rule mask the rule previously inherited
+	 * from dir_s1d2.
+	 */
+
+	/* Same tests and results as above. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d2. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	/* Readdir access is still allowed. */
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* It is still forbidden to write in file1_s1d3. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	/*
+	 * Readdir of dir_s1d3 is still allowed because of the OR policy inside
+	 * the same layer.
+	 */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+}
+
+TEST_F_FORK(layout1, inherit_superset)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d3,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	/* Readdir access is denied for dir_s1d2. */
+	ASSERT_EQ(EACCES, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+	/* Readdir access is allowed for dir_s1d3. */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+	/* File access is allowed for file1_s1d3. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+
+	/* Now dir_s1d2, parent of dir_s1d3, gets a new rule tied to it. */
+	add_path_beneath(_metadata, ruleset_fd,
+			 LANDLOCK_ACCESS_FS_READ_FILE |
+				 LANDLOCK_ACCESS_FS_READ_DIR,
+			 dir_s1d2);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Readdir access is still denied for dir_s1d2. */
+	ASSERT_EQ(EACCES, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+	/* Readdir access is still allowed for dir_s1d3. */
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+	/* File access is still allowed for file1_s1d3. */
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+}
+
+TEST_F_FORK(layout0, max_layers)
+{
+	int i, err;
+	const struct rule rules[] = {
+		{
+			.path = TMP_DIR,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	for (i = 0; i < 16; i++)
+		enforce_ruleset(_metadata, ruleset_fd);
+
+	for (i = 0; i < 2; i++) {
+		err = landlock_restrict_self(ruleset_fd, 0);
+		ASSERT_EQ(-1, err);
+		ASSERT_EQ(E2BIG, errno);
+	}
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, empty_or_same_ruleset)
+{
+	struct landlock_ruleset_attr ruleset_attr = {};
+	int ruleset_fd;
+
+	/* Tests empty handled_access_fs. */
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(-1, ruleset_fd);
+	ASSERT_EQ(ENOMSG, errno);
+
+	/* Enforces policy which deny read access to all files. */
+	ruleset_attr.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE;
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+
+	/* Nests a policy which deny read access to all directories. */
+	ruleset_attr.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR;
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY));
+
+	/* Enforces a second time with the same ruleset. */
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, rule_on_mountpoint)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d1,
+			.access = ACCESS_RO,
+		},
+		{
+			/* dir_s3d2 is a mount point. */
+			.path = dir_s3d2,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+
+	ASSERT_EQ(EACCES, test_open(dir_s2d1, O_RDONLY));
+
+	ASSERT_EQ(EACCES, test_open(dir_s3d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d3, O_RDONLY));
+}
+
+TEST_F_FORK(layout1, rule_over_mountpoint)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d1,
+			.access = ACCESS_RO,
+		},
+		{
+			/* dir_s3d2 is a mount point. */
+			.path = dir_s3d1,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+
+	ASSERT_EQ(EACCES, test_open(dir_s2d1, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(dir_s3d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s3d3, O_RDONLY));
+}
+
+/*
+ * This test verifies that we can apply a landlock rule on the root directory
+ * (which might require special handling).
+ */
+TEST_F_FORK(layout1, rule_over_root_allow_then_deny)
+{
+	struct rule rules[] = {
+		{
+			.path = "/",
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks allowed access. */
+	ASSERT_EQ(0, test_open("/", O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+
+	rules[0].access = LANDLOCK_ACCESS_FS_READ_FILE;
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks denied access (on a directory). */
+	ASSERT_EQ(EACCES, test_open("/", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY));
+}
+
+TEST_F_FORK(layout1, rule_over_root_deny)
+{
+	const struct rule rules[] = {
+		{
+			.path = "/",
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks denied access (on a directory). */
+	ASSERT_EQ(EACCES, test_open("/", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY));
+}
+
+TEST_F_FORK(layout1, rule_inside_mount_ns)
+{
+	const struct rule rules[] = {
+		{
+			.path = "s3d3",
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3))
+	{
+		TH_LOG("Failed to pivot root: %s", strerror(errno));
+	};
+	ASSERT_EQ(0, chdir("/"));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, test_open("s3d3", O_RDONLY));
+	ASSERT_EQ(EACCES, test_open("/", O_RDONLY));
+}
+
+TEST_F_FORK(layout1, mount_and_pivot)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s3d2,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(-1, mount(NULL, dir_s3d2, NULL, MS_RDONLY, NULL));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3));
+	ASSERT_EQ(EPERM, errno);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+TEST_F_FORK(layout1, move_mount)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s3d2,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, syscall(__NR_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD,
+			     dir_s1d2, 0))
+	{
+		TH_LOG("Failed to move mount: %s", strerror(errno));
+	}
+
+	ASSERT_EQ(0, syscall(__NR_move_mount, AT_FDCWD, dir_s1d2, AT_FDCWD,
+			     dir_s3d2, 0));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(-1, syscall(__NR_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD,
+			      dir_s1d2, 0));
+	ASSERT_EQ(EPERM, errno);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+TEST_F_FORK(layout1, topology_changes_with_net_only)
+{
+	const struct landlock_ruleset_attr ruleset_net = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	int ruleset_fd;
+
+	/* Add network restrictions. */
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_net, sizeof(ruleset_net), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Mount, remount, move_mount, umount, and pivot_root checks. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, dir_s1d2));
+	ASSERT_EQ(0, mount(NULL, dir_s1d2, NULL, MS_PRIVATE | MS_REC, NULL));
+	ASSERT_EQ(0, syscall(__NR_move_mount, AT_FDCWD, dir_s1d2, AT_FDCWD,
+			     dir_s2d2, 0));
+	ASSERT_EQ(0, umount(dir_s2d2));
+	ASSERT_EQ(0, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3));
+	ASSERT_EQ(0, chdir("/"));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+TEST_F_FORK(layout1, topology_changes_with_net_and_fs)
+{
+	const struct landlock_ruleset_attr ruleset_net_fs = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		.handled_access_fs = LANDLOCK_ACCESS_FS_EXECUTE,
+	};
+	int ruleset_fd;
+
+	/* Add network and filesystem restrictions. */
+	ruleset_fd = landlock_create_ruleset(&ruleset_net_fs,
+					     sizeof(ruleset_net_fs), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Mount, remount, move_mount, umount, and pivot_root checks. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(-1, mount_opt(&mnt_tmp, dir_s1d2));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, mount(NULL, dir_s3d2, NULL, MS_PRIVATE | MS_REC, NULL));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, syscall(__NR_move_mount, AT_FDCWD, dir_s3d2, AT_FDCWD,
+			      dir_s2d2, 0));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, umount(dir_s3d2));
+	ASSERT_EQ(EPERM, errno);
+	ASSERT_EQ(-1, syscall(__NR_pivot_root, dir_s3d2, dir_s3d3));
+	ASSERT_EQ(EPERM, errno);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+TEST_F_FORK(layout1, release_inodes)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d1,
+			.access = ACCESS_RO,
+		},
+		{
+			.path = dir_s3d2,
+			.access = ACCESS_RO,
+		},
+		{
+			.path = dir_s3d3,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, ACCESS_RW, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	/* Unmount a file hierarchy while it is being used by a ruleset. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, umount(dir_s3d2));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s3d2, O_RDONLY));
+	/* This dir_s3d3 would not be allowed and does not exist anyway. */
+	ASSERT_EQ(ENOENT, test_open(dir_s3d3, O_RDONLY));
+}
+
+/*
+ * This test checks that a rule on a directory used as a mount point does not
+ * grant access to the mount covering it.  It is a generalization of the bind
+ * mount case in layout3_fs.hostfs.release_inodes that tests hidden mount points.
+ */
+TEST_F_FORK(layout1, covered_rule)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s3d2,
+			.access = LANDLOCK_ACCESS_FS_READ_DIR,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	/* Unmount to simplify FIXTURE_TEARDOWN. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, umount(dir_s3d2));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	/* Creates a ruleset with the future hidden directory. */
+	ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_DIR, layer1);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Covers with a new mount point. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, dir_s3d2));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	ASSERT_EQ(0, test_open(dir_s3d2, O_RDONLY));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that access to the new mount point is denied. */
+	ASSERT_EQ(EACCES, test_open(dir_s3d2, O_RDONLY));
+}
+
+enum relative_access {
+	REL_OPEN,
+	REL_CHDIR,
+	REL_CHROOT_ONLY,
+	REL_CHROOT_CHDIR,
+};
+
+static void test_relative_path(struct __test_metadata *const _metadata,
+			       const enum relative_access rel)
+{
+	/*
+	 * Common layer to check that chroot doesn't ignore it (i.e. a chroot
+	 * is not a disconnected root directory).
+	 */
+	const struct rule layer1_base[] = {
+		{
+			.path = TMP_DIR,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	const struct rule layer2_subs[] = {
+		{
+			.path = dir_s1d2,
+			.access = ACCESS_RO,
+		},
+		{
+			.path = dir_s2d2,
+			.access = ACCESS_RO,
+		},
+		{},
+	};
+	int dirfd, ruleset_fd;
+
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer1_base);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer2_subs);
+
+	ASSERT_LE(0, ruleset_fd);
+	switch (rel) {
+	case REL_OPEN:
+	case REL_CHDIR:
+		break;
+	case REL_CHROOT_ONLY:
+		ASSERT_EQ(0, chdir(dir_s2d2));
+		break;
+	case REL_CHROOT_CHDIR:
+		ASSERT_EQ(0, chdir(dir_s1d2));
+		break;
+	default:
+		ASSERT_TRUE(false);
+		return;
+	}
+
+	set_cap(_metadata, CAP_SYS_CHROOT);
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	switch (rel) {
+	case REL_OPEN:
+		dirfd = open(dir_s1d2, O_DIRECTORY);
+		ASSERT_LE(0, dirfd);
+		break;
+	case REL_CHDIR:
+		ASSERT_EQ(0, chdir(dir_s1d2));
+		dirfd = AT_FDCWD;
+		break;
+	case REL_CHROOT_ONLY:
+		/* Do chroot into dir_s1d2 (relative to dir_s2d2). */
+		ASSERT_EQ(0, chroot("../../s1d1/s1d2"))
+		{
+			TH_LOG("Failed to chroot: %s", strerror(errno));
+		}
+		dirfd = AT_FDCWD;
+		break;
+	case REL_CHROOT_CHDIR:
+		/* Do chroot into dir_s1d2. */
+		ASSERT_EQ(0, chroot("."))
+		{
+			TH_LOG("Failed to chroot: %s", strerror(errno));
+		}
+		dirfd = AT_FDCWD;
+		break;
+	}
+
+	ASSERT_EQ((rel == REL_CHROOT_CHDIR) ? 0 : EACCES,
+		  test_open_rel(dirfd, "..", O_RDONLY));
+	ASSERT_EQ(0, test_open_rel(dirfd, ".", O_RDONLY));
+
+	if (rel == REL_CHROOT_ONLY) {
+		/* The current directory is dir_s2d2. */
+		ASSERT_EQ(0, test_open_rel(dirfd, "./s2d3", O_RDONLY));
+	} else {
+		/* The current directory is dir_s1d2. */
+		ASSERT_EQ(0, test_open_rel(dirfd, "./s1d3", O_RDONLY));
+	}
+
+	if (rel == REL_CHROOT_ONLY || rel == REL_CHROOT_CHDIR) {
+		/* Checks the root dir_s1d2. */
+		ASSERT_EQ(0, test_open_rel(dirfd, "/..", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "/", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "/f1", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "/s1d3", O_RDONLY));
+	}
+
+	if (rel != REL_CHROOT_CHDIR) {
+		ASSERT_EQ(EACCES, test_open_rel(dirfd, "../../s1d1", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "../../s1d1/s1d2", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "../../s1d1/s1d2/s1d3",
+					   O_RDONLY));
+
+		ASSERT_EQ(EACCES, test_open_rel(dirfd, "../../s2d1", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "../../s2d1/s2d2", O_RDONLY));
+		ASSERT_EQ(0, test_open_rel(dirfd, "../../s2d1/s2d2/s2d3",
+					   O_RDONLY));
+	}
+
+	if (rel == REL_OPEN)
+		ASSERT_EQ(0, close(dirfd));
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, relative_open)
+{
+	test_relative_path(_metadata, REL_OPEN);
+}
+
+TEST_F_FORK(layout1, relative_chdir)
+{
+	test_relative_path(_metadata, REL_CHDIR);
+}
+
+TEST_F_FORK(layout1, relative_chroot_only)
+{
+	test_relative_path(_metadata, REL_CHROOT_ONLY);
+}
+
+TEST_F_FORK(layout1, relative_chroot_chdir)
+{
+	test_relative_path(_metadata, REL_CHROOT_CHDIR);
+}
+
+static void copy_file(struct __test_metadata *const _metadata,
+		      const char *const src_path, const char *const dst_path)
+{
+	int dst_fd, src_fd;
+	struct stat statbuf;
+
+	dst_fd = open(dst_path, O_WRONLY | O_TRUNC | O_CLOEXEC);
+	ASSERT_LE(0, dst_fd)
+	{
+		TH_LOG("Failed to open \"%s\": %s", dst_path, strerror(errno));
+	}
+	src_fd = open(src_path, O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, src_fd)
+	{
+		TH_LOG("Failed to open \"%s\": %s", src_path, strerror(errno));
+	}
+	ASSERT_EQ(0, fstat(src_fd, &statbuf));
+	ASSERT_EQ(statbuf.st_size,
+		  sendfile(dst_fd, src_fd, 0, statbuf.st_size));
+	ASSERT_EQ(0, close(src_fd));
+	ASSERT_EQ(0, close(dst_fd));
+}
+
+static void test_execute(struct __test_metadata *const _metadata, const int err,
+			 const char *const path)
+{
+	int status;
+	char *const argv[] = { (char *)path, NULL };
+	const pid_t child = fork();
+
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		ASSERT_EQ(err ? -1 : 0, execve(path, argv, NULL))
+		{
+			TH_LOG("Failed to execute \"%s\": %s", path,
+			       strerror(errno));
+		};
+		ASSERT_EQ(err, errno);
+		_exit(__test_passed(_metadata) ? 2 : 1);
+		return;
+	}
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	ASSERT_EQ(1, WIFEXITED(status));
+	ASSERT_EQ(err ? 2 : 0, WEXITSTATUS(status))
+	{
+		TH_LOG("Unexpected return code for \"%s\"", path);
+	};
+}
+
+static void test_check_exec(struct __test_metadata *const _metadata,
+			    const int err, const char *const path)
+{
+	int ret;
+	char *const argv[] = { (char *)path, NULL };
+
+	ret = sys_execveat(AT_FDCWD, path, argv, NULL,
+			   AT_EMPTY_PATH | AT_EXECVE_CHECK);
+	if (err) {
+		EXPECT_EQ(-1, ret);
+		EXPECT_EQ(errno, err);
+	} else {
+		EXPECT_EQ(0, ret);
+	}
+}
+
+TEST_F_FORK(layout1, execute)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_EXECUTE,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	copy_file(_metadata, bin_true, file1_s1d1);
+	copy_file(_metadata, bin_true, file1_s1d2);
+	copy_file(_metadata, bin_true, file1_s1d3);
+
+	/* Checks before file1_s1d1 being denied. */
+	test_execute(_metadata, 0, file1_s1d1);
+	test_check_exec(_metadata, 0, file1_s1d1);
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY));
+	test_execute(_metadata, EACCES, file1_s1d1);
+	test_check_exec(_metadata, EACCES, file1_s1d1);
+
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	test_execute(_metadata, 0, file1_s1d2);
+	test_check_exec(_metadata, 0, file1_s1d2);
+
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	test_execute(_metadata, 0, file1_s1d3);
+	test_check_exec(_metadata, 0, file1_s1d3);
+}
+
+TEST_F_FORK(layout1, umount_sandboxer)
+{
+	int pipe_child[2], pipe_parent[2];
+	char buf_parent;
+	pid_t child;
+	int status;
+
+	copy_file(_metadata, bin_sandbox_and_launch, file1_s3d3);
+	ASSERT_EQ(0, pipe2(pipe_child, 0));
+	ASSERT_EQ(0, pipe2(pipe_parent, 0));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		char pipe_child_str[12], pipe_parent_str[12];
+		char *const argv[] = { (char *)file1_s3d3,
+				       (char *)bin_wait_pipe, pipe_child_str,
+				       pipe_parent_str, NULL };
+
+		/* Passes the pipe FDs to the executed binary and its child. */
+		EXPECT_EQ(0, close(pipe_child[0]));
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		snprintf(pipe_child_str, sizeof(pipe_child_str), "%d",
+			 pipe_child[1]);
+		snprintf(pipe_parent_str, sizeof(pipe_parent_str), "%d",
+			 pipe_parent[0]);
+
+		/*
+		 * We need bin_sandbox_and_launch (copied inside the mount as
+		 * file1_s3d3) to execute bin_wait_pipe (outside the mount) to
+		 * make sure the mount point will not be EBUSY because of
+		 * file1_s3d3 being in use.  This avoids a potential race
+		 * condition between the following read() and umount() calls.
+		 */
+		ASSERT_EQ(0, execve(argv[0], argv, NULL))
+		{
+			TH_LOG("Failed to execute \"%s\": %s", argv[0],
+			       strerror(errno));
+		};
+		_exit(1);
+		return;
+	}
+
+	EXPECT_EQ(0, close(pipe_child[1]));
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	/* Waits for the child to sandbox itself. */
+	EXPECT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests that the sandboxer is tied to its mount point. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(-1, umount(dir_s3d2));
+	EXPECT_EQ(EBUSY, errno);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	/* Signals the child to launch a grandchild. */
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	/* Waits for the grandchild. */
+	EXPECT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests that the domain's sandboxer is not tied to its mount point. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(0, umount(dir_s3d2))
+	{
+		TH_LOG("Failed to umount \"%s\": %s", dir_s3d2,
+		       strerror(errno));
+	};
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	/* Signals the grandchild to terminate. */
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	ASSERT_EQ(1, WIFEXITED(status));
+	ASSERT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST_F_FORK(layout1, link)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{},
+	};
+	const struct rule layer2[] = {
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd = create_ruleset(_metadata, layer1[0].access, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, link(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Denies linking because of reparenting. */
+	ASSERT_EQ(-1, link(file1_s2d1, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, link(file2_s1d2, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, link(file2_s1d3, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	ASSERT_EQ(0, link(file2_s1d2, file1_s1d2));
+	ASSERT_EQ(0, link(file2_s1d3, file1_s1d3));
+
+	/* Prepares for next unlinks. */
+	ASSERT_EQ(0, unlink(file2_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	ruleset_fd = create_ruleset(_metadata, layer2[0].access, layer2);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that linkind doesn't require the ability to delete a file. */
+	ASSERT_EQ(0, link(file1_s1d2, file2_s1d2));
+	ASSERT_EQ(0, link(file1_s1d3, file2_s1d3));
+}
+
+static int test_rename(const char *const oldpath, const char *const newpath)
+{
+	if (rename(oldpath, newpath))
+		return errno;
+	return 0;
+}
+
+static int test_exchange(const char *const oldpath, const char *const newpath)
+{
+	if (renameat2(AT_FDCWD, oldpath, AT_FDCWD, newpath, RENAME_EXCHANGE))
+		return errno;
+	return 0;
+}
+
+static int test_renameat(int olddirfd, const char *oldpath, int newdirfd,
+			 const char *newpath)
+{
+	if (renameat2(olddirfd, oldpath, newdirfd, newpath, 0))
+		return errno;
+	return 0;
+}
+
+static int test_exchangeat(int olddirfd, const char *oldpath, int newdirfd,
+			   const char *newpath)
+{
+	if (renameat2(olddirfd, oldpath, newdirfd, newpath, RENAME_EXCHANGE))
+		return errno;
+	return 0;
+}
+
+TEST_F_FORK(layout1, rename_file)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Tries to replace a file, from a directory that allows file removal,
+	 * but to a different directory (which also allows file removal).
+	 */
+	ASSERT_EQ(-1, rename(file1_s2d3, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d3, AT_FDCWD, file1_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d3, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+
+	/*
+	 * Tries to replace a file, from a directory that denies file removal,
+	 * to a different directory (which allows file removal).
+	 */
+	ASSERT_EQ(-1, rename(file1_s2d1, file1_s1d3));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d1, AT_FDCWD, file1_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s2d2, AT_FDCWD, file1_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Exchanges files and directories that partially allow removal. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s2d2, AT_FDCWD, file1_s2d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	/* Checks that file1_s2d1 cannot be removed (instead of ENOTDIR). */
+	ASSERT_EQ(-1, rename(dir_s2d2, file1_s2d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d1, AT_FDCWD, dir_s2d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	/* Checks that file1_s1d1 cannot be removed (instead of EISDIR). */
+	ASSERT_EQ(-1, rename(file1_s1d1, dir_s1d2));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Renames files with different parents. */
+	ASSERT_EQ(-1, rename(file1_s2d2, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(-1, rename(file1_s2d1, file1_s1d3));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Exchanges and renames files with same parent. */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file2_s2d3, AT_FDCWD, file1_s2d3,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, rename(file2_s2d3, file1_s2d3));
+
+	/* Exchanges files and directories with same parent, twice. */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_s2d3,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_s2d3,
+			       RENAME_EXCHANGE));
+}
+
+TEST_F_FORK(layout1, rename_dir)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_DIR,
+		},
+		{
+			.path = dir_s2d1,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_DIR,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Empties dir_s1d3 to allow renaming. */
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Exchanges and renames directory to a different parent. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s2d3, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(dir_s2d3, dir_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+
+	/*
+	 * Exchanges directory to the same parent, which doesn't allow
+	 * directory removal.
+	 */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s1d1, AT_FDCWD, dir_s2d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	/* Checks that dir_s1d2 cannot be removed (instead of ENOTDIR). */
+	ASSERT_EQ(-1, rename(dir_s1d2, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, dir_s1d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	/* Checks that dir_s1d2 cannot be removed (instead of EISDIR). */
+	ASSERT_EQ(-1, rename(file1_s1d1, dir_s1d2));
+	ASSERT_EQ(EACCES, errno);
+
+	/*
+	 * Exchanges and renames directory to the same parent, which allows
+	 * directory removal.
+	 */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_s1d3, AT_FDCWD, file1_s1d2,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, unlink(dir_s1d3));
+	ASSERT_EQ(0, mkdir(dir_s1d3, 0700));
+	ASSERT_EQ(0, rename(file1_s1d2, dir_s1d3));
+	ASSERT_EQ(0, rmdir(dir_s1d3));
+}
+
+TEST_F_FORK(layout1, reparent_refer)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{},
+	};
+	int ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_REFER, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, rename(dir_s1d2, dir_s2d1));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(dir_s1d2, dir_s2d2));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(dir_s1d2, dir_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	ASSERT_EQ(-1, rename(dir_s1d3, dir_s2d1));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(dir_s1d3, dir_s2d2));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Moving should only be allowed when the source and the destination
+	 * parent directory have REFER.
+	 */
+	ASSERT_EQ(-1, rename(dir_s1d3, dir_s2d3));
+	ASSERT_EQ(ENOTEMPTY, errno);
+	ASSERT_EQ(0, unlink(file1_s2d3));
+	ASSERT_EQ(0, unlink(file2_s2d3));
+	ASSERT_EQ(0, rename(dir_s1d3, dir_s2d3));
+}
+
+/* Checks renames beneath dir_s1d1. */
+static void refer_denied_by_default(struct __test_metadata *const _metadata,
+				    const struct rule layer1[],
+				    const int layer1_err,
+				    const struct rule layer2[])
+{
+	int ruleset_fd;
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+
+	ruleset_fd = create_ruleset(_metadata, layer1[0].access, layer1);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * If the first layer handles LANDLOCK_ACCESS_FS_REFER (according to
+	 * layer1_err), then it allows some different-parent renames and links.
+	 */
+	ASSERT_EQ(layer1_err, test_rename(file1_s1d1, file1_s1d2));
+	if (layer1_err == 0)
+		ASSERT_EQ(layer1_err, test_rename(file1_s1d2, file1_s1d1));
+	ASSERT_EQ(layer1_err, test_exchange(file2_s1d1, file2_s1d2));
+	ASSERT_EQ(layer1_err, test_exchange(file2_s1d2, file2_s1d1));
+
+	ruleset_fd = create_ruleset(_metadata, layer2[0].access, layer2);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Now, either the first or the second layer does not handle
+	 * LANDLOCK_ACCESS_FS_REFER, which means that any different-parent
+	 * renames and links are denied, thus making the layer handling
+	 * LANDLOCK_ACCESS_FS_REFER null and void.
+	 */
+	ASSERT_EQ(EXDEV, test_rename(file1_s1d1, file1_s1d2));
+	ASSERT_EQ(EXDEV, test_exchange(file2_s1d1, file2_s1d2));
+	ASSERT_EQ(EXDEV, test_exchange(file2_s1d2, file2_s1d1));
+}
+
+const struct rule layer_dir_s1d1_refer[] = {
+	{
+		.path = dir_s1d1,
+		.access = LANDLOCK_ACCESS_FS_REFER,
+	},
+	{},
+};
+
+const struct rule layer_dir_s1d1_execute[] = {
+	{
+		/* Matches a parent directory. */
+		.path = dir_s1d1,
+		.access = LANDLOCK_ACCESS_FS_EXECUTE,
+	},
+	{},
+};
+
+const struct rule layer_dir_s2d1_execute[] = {
+	{
+		/* Does not match a parent directory. */
+		.path = dir_s2d1,
+		.access = LANDLOCK_ACCESS_FS_EXECUTE,
+	},
+	{},
+};
+
+/*
+ * Tests precedence over renames: denied by default for different parent
+ * directories, *with* a rule matching a parent directory, but not directly
+ * denying access (with MAKE_REG nor REMOVE).
+ */
+TEST_F_FORK(layout1, refer_denied_by_default1)
+{
+	refer_denied_by_default(_metadata, layer_dir_s1d1_refer, 0,
+				layer_dir_s1d1_execute);
+}
+
+/*
+ * Same test but this time turning around the ABI version order: the first
+ * layer does not handle LANDLOCK_ACCESS_FS_REFER.
+ */
+TEST_F_FORK(layout1, refer_denied_by_default2)
+{
+	refer_denied_by_default(_metadata, layer_dir_s1d1_execute, EXDEV,
+				layer_dir_s1d1_refer);
+}
+
+/*
+ * Tests precedence over renames: denied by default for different parent
+ * directories, *without* a rule matching a parent directory, but not directly
+ * denying access (with MAKE_REG nor REMOVE).
+ */
+TEST_F_FORK(layout1, refer_denied_by_default3)
+{
+	refer_denied_by_default(_metadata, layer_dir_s1d1_refer, 0,
+				layer_dir_s2d1_execute);
+}
+
+/*
+ * Same test but this time turning around the ABI version order: the first
+ * layer does not handle LANDLOCK_ACCESS_FS_REFER.
+ */
+TEST_F_FORK(layout1, refer_denied_by_default4)
+{
+	refer_denied_by_default(_metadata, layer_dir_s2d1_execute, EXDEV,
+				layer_dir_s1d1_refer);
+}
+
+/*
+ * Tests walking through a denied root mount.
+ */
+TEST_F_FORK(layout1, refer_mount_root_deny)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_MAKE_DIR,
+	};
+	int root_fd, ruleset_fd;
+
+	/* Creates a mount object from a non-mount point. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	root_fd =
+		open_tree(AT_FDCWD, dir_s1d1,
+			  AT_EMPTY_PATH | OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_LE(0, root_fd);
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* Link denied by Landlock: EACCES. */
+	EXPECT_EQ(-1, linkat(root_fd, ".", root_fd, "does_not_exist", 0));
+	EXPECT_EQ(EACCES, errno);
+
+	/* renameat2() always returns EBUSY. */
+	EXPECT_EQ(-1, renameat2(root_fd, ".", root_fd, "does_not_exist", 0));
+	EXPECT_EQ(EBUSY, errno);
+
+	EXPECT_EQ(0, close(root_fd));
+}
+
+TEST_F_FORK(layout1, refer_part_mount_tree_is_allowed)
+{
+	const struct rule layer1[] = {
+		{
+			/* Parent mount point. */
+			.path = dir_s3d1,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{
+			/*
+			 * Removing the source file is allowed because its
+			 * access rights are already a superset of the
+			 * destination.
+			 */
+			.path = dir_s3d4,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_MAKE_REG |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	ASSERT_EQ(0, unlink(file1_s3d3));
+	ruleset_fd = create_ruleset(_metadata,
+				    LANDLOCK_ACCESS_FS_REFER |
+					    LANDLOCK_ACCESS_FS_MAKE_REG |
+					    LANDLOCK_ACCESS_FS_REMOVE_FILE,
+				    layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, rename(file1_s3d4, file1_s3d3));
+}
+
+TEST_F_FORK(layout1, reparent_link)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_MAKE_REG | LANDLOCK_ACCESS_FS_REFER, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	/* Denies linking because of missing MAKE_REG. */
+	ASSERT_EQ(-1, link(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	/* Denies linking because of missing source and destination REFER. */
+	ASSERT_EQ(-1, link(file1_s2d1, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+	/* Denies linking because of missing source REFER. */
+	ASSERT_EQ(-1, link(file1_s2d1, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Denies linking because of missing MAKE_REG. */
+	ASSERT_EQ(-1, link(file1_s2d2, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	/* Denies linking because of missing destination REFER. */
+	ASSERT_EQ(-1, link(file1_s2d2, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Allows linking because of REFER and MAKE_REG. */
+	ASSERT_EQ(0, link(file1_s2d2, file1_s1d3));
+	ASSERT_EQ(0, unlink(file1_s2d2));
+	/* Reverse linking denied because of missing MAKE_REG. */
+	ASSERT_EQ(-1, link(file1_s1d3, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, unlink(file1_s2d3));
+	/* Checks reverse linking. */
+	ASSERT_EQ(0, link(file1_s1d3, file1_s2d3));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	/*
+	 * This is OK for a file link, but it should not be allowed for a
+	 * directory rename (because of the superset of access rights.
+	 */
+	ASSERT_EQ(0, link(file1_s2d3, file1_s1d3));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	ASSERT_EQ(-1, link(file2_s1d2, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, link(file2_s1d3, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	ASSERT_EQ(0, link(file2_s1d2, file1_s1d2));
+	ASSERT_EQ(0, link(file2_s1d3, file1_s1d3));
+}
+
+TEST_F_FORK(layout1, reparent_rename)
+{
+	/* Same rules as for reparent_link. */
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_MAKE_REG | LANDLOCK_ACCESS_FS_REFER, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	/* Denies renaming because of missing MAKE_REG. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file2_s1d1, AT_FDCWD, file1_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, file2_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(-1, rename(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	/* Even denies same file exchange. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file2_s1d1, AT_FDCWD, file2_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Denies renaming because of missing source and destination REFER. */
+	ASSERT_EQ(-1, rename(file1_s2d1, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Denies renaming because of missing MAKE_REG, source and destination
+	 * REFER.
+	 */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d1, AT_FDCWD, file2_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file2_s1d1, AT_FDCWD, file1_s2d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Denies renaming because of missing source REFER. */
+	ASSERT_EQ(-1, rename(file1_s2d1, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	/* Denies renaming because of missing MAKE_REG. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d1, AT_FDCWD, file2_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Denies renaming because of missing MAKE_REG. */
+	ASSERT_EQ(-1, rename(file1_s2d2, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	/* Denies renaming because of missing destination REFER*/
+	ASSERT_EQ(-1, rename(file1_s2d2, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Denies exchange because of one missing MAKE_REG. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, file2_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	/* Allows renaming because of REFER and MAKE_REG. */
+	ASSERT_EQ(0, rename(file1_s2d2, file1_s1d3));
+
+	/* Reverse renaming denied because of missing MAKE_REG. */
+	ASSERT_EQ(-1, rename(file1_s1d3, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, unlink(file1_s2d3));
+	ASSERT_EQ(0, rename(file1_s1d3, file1_s2d3));
+
+	/* Tests reverse renaming. */
+	ASSERT_EQ(0, rename(file1_s2d3, file1_s1d3));
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file2_s2d3, AT_FDCWD, file1_s1d3,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, rename(file1_s1d3, file1_s2d3));
+
+	/*
+	 * This is OK for a file rename, but it should not be allowed for a
+	 * directory rename (because of the superset of access rights).
+	 */
+	ASSERT_EQ(0, rename(file1_s2d3, file1_s1d3));
+	ASSERT_EQ(0, rename(file1_s1d3, file1_s2d3));
+
+	/*
+	 * Tests superset restrictions applied to directories.  Not only the
+	 * dir_s2d3's parent (dir_s2d2) should be taken into account but also
+	 * access rights tied to dir_s2d3. dir_s2d2 is missing one access right
+	 * compared to dir_s1d3/file1_s1d3 (MAKE_REG) but it is provided
+	 * directly by the moved dir_s2d3.
+	 */
+	ASSERT_EQ(0, rename(dir_s2d3, file1_s1d3));
+	ASSERT_EQ(0, rename(file1_s1d3, dir_s2d3));
+	/*
+	 * The first rename is allowed but not the exchange because dir_s1d3's
+	 * parent (dir_s1d2) doesn't have REFER.
+	 */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d3, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s1d3, AT_FDCWD, file1_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(file1_s2d3, dir_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	ASSERT_EQ(-1, rename(file2_s1d2, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(file2_s1d3, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Renaming in the same directory is always allowed. */
+	ASSERT_EQ(0, rename(file2_s1d2, file1_s1d2));
+	ASSERT_EQ(0, rename(file2_s1d3, file1_s1d3));
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	/* Denies because of missing source MAKE_REG and destination REFER. */
+	ASSERT_EQ(-1, rename(dir_s2d3, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	/* Denies because of missing source MAKE_REG and REFER. */
+	ASSERT_EQ(-1, rename(dir_s2d2, file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+}
+
+static void
+reparent_exdev_layers_enforce1(struct __test_metadata *const _metadata)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			/* Interesting for the layer2 tests. */
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = dir_s2d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_REG,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_MAKE_REG | LANDLOCK_ACCESS_FS_REFER, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+static void
+reparent_exdev_layers_enforce2(struct __test_metadata *const _metadata)
+{
+	const struct rule layer2[] = {
+		{
+			.path = dir_s2d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_DIR,
+		},
+		{},
+	};
+	/*
+	 * Same checks as before but with a second layer and a new MAKE_DIR
+	 * rule (and no explicit handling of REFER).
+	 */
+	const int ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_MAKE_DIR, layer2);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F_FORK(layout1, reparent_exdev_layers_rename1)
+{
+	ASSERT_EQ(0, unlink(file1_s2d2));
+	ASSERT_EQ(0, unlink(file1_s2d3));
+
+	reparent_exdev_layers_enforce1(_metadata);
+
+	/*
+	 * Moving the dir_s1d3 directory below dir_s2d2 is allowed by Landlock
+	 * because it doesn't inherit new access rights.
+	 */
+	ASSERT_EQ(0, rename(dir_s1d3, file1_s2d2));
+	ASSERT_EQ(0, rename(file1_s2d2, dir_s1d3));
+
+	/*
+	 * Moving the dir_s1d3 directory below dir_s2d3 is allowed, even if it
+	 * gets a new inherited access rights (MAKE_REG), because MAKE_REG is
+	 * already allowed for dir_s1d3.
+	 */
+	ASSERT_EQ(0, rename(dir_s1d3, file1_s2d3));
+	ASSERT_EQ(0, rename(file1_s2d3, dir_s1d3));
+
+	/*
+	 * However, moving the file1_s1d3 file below dir_s2d3 is allowed
+	 * because it cannot inherit MAKE_REG right (which is dedicated to
+	 * directories).
+	 */
+	ASSERT_EQ(0, rename(file1_s1d3, file1_s2d3));
+
+	reparent_exdev_layers_enforce2(_metadata);
+
+	/*
+	 * Moving the dir_s1d3 directory below dir_s2d2 is now denied because
+	 * MAKE_DIR is not tied to dir_s2d2.
+	 */
+	ASSERT_EQ(-1, rename(dir_s1d3, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+
+	/*
+	 * Moving the dir_s1d3 directory below dir_s2d3 is forbidden because it
+	 * would grants MAKE_REG and MAKE_DIR rights to it.
+	 */
+	ASSERT_EQ(-1, rename(dir_s1d3, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	/*
+	 * Moving the file2_s1d3 file below dir_s2d3 is denied because the
+	 * second layer does not handle REFER, which is always denied by
+	 * default.
+	 */
+	ASSERT_EQ(-1, rename(file2_s1d3, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+}
+
+TEST_F_FORK(layout1, reparent_exdev_layers_rename2)
+{
+	reparent_exdev_layers_enforce1(_metadata);
+
+	/* Checks EACCES predominance over EXDEV. */
+	ASSERT_EQ(-1, rename(file1_s1d1, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(file1_s1d2, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(file1_s1d1, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+	/* Modify layout! */
+	ASSERT_EQ(0, rename(file1_s1d2, file1_s2d3));
+
+	/* Without REFER source. */
+	ASSERT_EQ(-1, rename(dir_s1d1, file1_s2d2));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, rename(dir_s1d2, file1_s2d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	reparent_exdev_layers_enforce2(_metadata);
+
+	/* Checks EACCES predominance over EXDEV. */
+	ASSERT_EQ(-1, rename(file1_s1d1, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	/* Checks with actual file2_s1d2. */
+	ASSERT_EQ(-1, rename(file2_s1d2, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(file1_s1d1, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Modifying the layout is now denied because the second layer does not
+	 * handle REFER, which is always denied by default.
+	 */
+	ASSERT_EQ(-1, rename(file2_s1d2, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Without REFER source, EACCES wins over EXDEV. */
+	ASSERT_EQ(-1, rename(dir_s1d1, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(dir_s1d2, file1_s2d2));
+	ASSERT_EQ(EACCES, errno);
+}
+
+TEST_F_FORK(layout1, reparent_exdev_layers_exchange1)
+{
+	const char *const dir_file1_s1d2 = file1_s1d2, *const dir_file2_s2d3 =
+							       file2_s2d3;
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, mkdir(file1_s1d2, 0700));
+	ASSERT_EQ(0, unlink(file2_s2d3));
+	ASSERT_EQ(0, mkdir(file2_s2d3, 0700));
+
+	reparent_exdev_layers_enforce1(_metadata);
+
+	/* Error predominance with file exchange: returns EXDEV and EACCES. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, file1_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d3, AT_FDCWD, file1_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/*
+	 * Checks with directories which creation could be allowed, but denied
+	 * because of access rights that would be inherited.
+	 */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file1_s1d2, AT_FDCWD,
+				dir_file2_s2d3, RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD,
+				dir_file1_s1d2, RENAME_EXCHANGE));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Checks with same access rights. */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_s1d3, AT_FDCWD, dir_s2d3,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_s2d3, AT_FDCWD, dir_s1d3,
+			       RENAME_EXCHANGE));
+
+	/* Checks with different (child-only) access rights. */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_s2d3, AT_FDCWD, dir_file1_s1d2,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_file1_s1d2, AT_FDCWD, dir_s2d3,
+			       RENAME_EXCHANGE));
+
+	/*
+	 * Checks that exchange between file and directory are consistent.
+	 *
+	 * Moving a file (file1_s2d2) to a directory which only grants more
+	 * directory-related access rights is allowed, and at the same time
+	 * moving a directory (dir_file2_s2d3) to another directory which
+	 * grants less access rights is allowed too.
+	 *
+	 * See layout1.reparent_exdev_layers_exchange3 for inverted arguments.
+	 */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_file2_s2d3,
+			       RENAME_EXCHANGE));
+	/*
+	 * However, moving back the directory is denied because it would get
+	 * more access rights than the current state and because file creation
+	 * is forbidden (in dir_s2d2).
+	 */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD, file1_s2d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_file2_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	reparent_exdev_layers_enforce2(_metadata);
+
+	/* Error predominance with file exchange: returns EXDEV and EACCES. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, file1_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d3, AT_FDCWD, file1_s1d1,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Checks with directories which creation is now denied. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file1_s1d2, AT_FDCWD,
+				dir_file2_s2d3, RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD,
+				dir_file1_s1d2, RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Checks with different (child-only) access rights. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s1d3, AT_FDCWD, dir_s2d3,
+				RENAME_EXCHANGE));
+	/* Denied because of MAKE_DIR. */
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s2d3, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Checks with different (child-only) access rights. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_s2d3, AT_FDCWD, dir_file1_s1d2,
+				RENAME_EXCHANGE));
+	/* Denied because of MAKE_DIR. */
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file1_s1d2, AT_FDCWD, dir_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* See layout1.reparent_exdev_layers_exchange2 for complement. */
+}
+
+TEST_F_FORK(layout1, reparent_exdev_layers_exchange2)
+{
+	const char *const dir_file2_s2d3 = file2_s2d3;
+
+	ASSERT_EQ(0, unlink(file2_s2d3));
+	ASSERT_EQ(0, mkdir(file2_s2d3, 0700));
+
+	reparent_exdev_layers_enforce1(_metadata);
+	reparent_exdev_layers_enforce2(_metadata);
+
+	/* Checks that exchange between file and directory are consistent. */
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_file2_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD, file1_s2d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+}
+
+TEST_F_FORK(layout1, reparent_exdev_layers_exchange3)
+{
+	const char *const dir_file2_s2d3 = file2_s2d3;
+
+	ASSERT_EQ(0, unlink(file2_s2d3));
+	ASSERT_EQ(0, mkdir(file2_s2d3, 0700));
+
+	reparent_exdev_layers_enforce1(_metadata);
+
+	/*
+	 * Checks that exchange between file and directory are consistent,
+	 * including with inverted arguments (see
+	 * layout1.reparent_exdev_layers_exchange1).
+	 */
+	ASSERT_EQ(0, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD, file1_s2d2,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_file2_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, dir_file2_s2d3, AT_FDCWD, file1_s2d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+}
+
+TEST_F_FORK(layout1, reparent_remove)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d1,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_REMOVE_DIR,
+		},
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{
+			.path = dir_s2d1,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_REMOVE_DIR |
+			LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Access denied because of wrong/swapped remove file/dir. */
+	ASSERT_EQ(-1, rename(file1_s1d1, dir_s2d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(dir_s2d2, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, dir_s2d2,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s1d1, AT_FDCWD, dir_s2d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+
+	/* Access allowed thanks to the matching rights. */
+	ASSERT_EQ(-1, rename(file1_s2d1, dir_s1d2));
+	ASSERT_EQ(EISDIR, errno);
+	ASSERT_EQ(-1, rename(dir_s1d2, file1_s2d1));
+	ASSERT_EQ(ENOTDIR, errno);
+	ASSERT_EQ(-1, rename(dir_s1d3, file1_s2d1));
+	ASSERT_EQ(ENOTDIR, errno);
+	ASSERT_EQ(0, unlink(file1_s2d1));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+	ASSERT_EQ(0, rename(dir_s1d3, file1_s2d1));
+
+	/* Effectively removes a file and a directory by exchanging them. */
+	ASSERT_EQ(0, mkdir(dir_s1d3, 0700));
+	ASSERT_EQ(0, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_s1d3,
+			       RENAME_EXCHANGE));
+	ASSERT_EQ(-1, renameat2(AT_FDCWD, file1_s2d2, AT_FDCWD, dir_s1d3,
+				RENAME_EXCHANGE));
+	ASSERT_EQ(EACCES, errno);
+}
+
+TEST_F_FORK(layout1, reparent_dom_superset)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = file1_s1d2,
+			.access = LANDLOCK_ACCESS_FS_EXECUTE,
+		},
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_MAKE_SOCK |
+				  LANDLOCK_ACCESS_FS_EXECUTE,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_EXECUTE |
+				  LANDLOCK_ACCESS_FS_MAKE_SOCK,
+		},
+		{
+			.path = dir_s2d3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_MAKE_FIFO,
+		},
+		{},
+	};
+	int ruleset_fd = create_ruleset(_metadata,
+					LANDLOCK_ACCESS_FS_REFER |
+						LANDLOCK_ACCESS_FS_EXECUTE |
+						LANDLOCK_ACCESS_FS_MAKE_SOCK |
+						LANDLOCK_ACCESS_FS_READ_FILE |
+						LANDLOCK_ACCESS_FS_MAKE_FIFO,
+					layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, rename(file1_s1d2, file1_s2d1));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Moving file1_s1d2 beneath dir_s2d3 would grant it the READ_FILE
+	 * access right.
+	 */
+	ASSERT_EQ(-1, rename(file1_s1d2, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Moving file1_s1d2 should be allowed even if dir_s2d2 grants a
+	 * superset of access rights compared to dir_s1d2, because file1_s1d2
+	 * already has these access rights anyway.
+	 */
+	ASSERT_EQ(0, rename(file1_s1d2, file1_s2d2));
+	ASSERT_EQ(0, rename(file1_s2d2, file1_s1d2));
+
+	ASSERT_EQ(-1, rename(dir_s1d3, file1_s2d1));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Moving dir_s1d3 beneath dir_s2d3 would grant it the MAKE_FIFO access
+	 * right.
+	 */
+	ASSERT_EQ(-1, rename(dir_s1d3, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+	/*
+	 * Moving dir_s1d3 should be allowed even if dir_s2d2 grants a superset
+	 * of access rights compared to dir_s1d2, because dir_s1d3 already has
+	 * these access rights anyway.
+	 */
+	ASSERT_EQ(0, rename(dir_s1d3, file1_s2d2));
+	ASSERT_EQ(0, rename(file1_s2d2, dir_s1d3));
+
+	/*
+	 * Moving file1_s2d3 beneath dir_s1d2 is allowed, but moving it back
+	 * will be denied because the new inherited access rights from dir_s1d2
+	 * will be less than the destination (original) dir_s2d3.  This is a
+	 * sinkhole scenario where we cannot move back files or directories.
+	 */
+	ASSERT_EQ(0, rename(file1_s2d3, file2_s1d2));
+	ASSERT_EQ(-1, rename(file2_s1d2, file1_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+	ASSERT_EQ(0, unlink(file2_s1d2));
+	ASSERT_EQ(0, unlink(file2_s2d3));
+	/*
+	 * Checks similar directory one-way move: dir_s2d3 loses EXECUTE and
+	 * MAKE_SOCK which were inherited from dir_s1d3.
+	 */
+	ASSERT_EQ(0, rename(dir_s2d3, file2_s1d2));
+	ASSERT_EQ(-1, rename(file2_s1d2, dir_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+}
+
+TEST_F_FORK(layout1, remove_dir)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_DIR,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(0, rmdir(dir_s1d3));
+	ASSERT_EQ(0, mkdir(dir_s1d3, 0700));
+	ASSERT_EQ(0, unlinkat(AT_FDCWD, dir_s1d3, AT_REMOVEDIR));
+
+	/* dir_s1d2 itself cannot be removed. */
+	ASSERT_EQ(-1, rmdir(dir_s1d2));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, unlinkat(AT_FDCWD, dir_s1d2, AT_REMOVEDIR));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rmdir(dir_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, unlinkat(AT_FDCWD, dir_s1d1, AT_REMOVEDIR));
+	ASSERT_EQ(EACCES, errno);
+}
+
+TEST_F_FORK(layout1, remove_file)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, unlink(file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, unlinkat(AT_FDCWD, file1_s1d1, 0));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlinkat(AT_FDCWD, file1_s1d3, 0));
+}
+
+static void test_make_file(struct __test_metadata *const _metadata,
+			   const __u64 access, const mode_t mode,
+			   const dev_t dev)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = access,
+		},
+		{},
+	};
+	const int ruleset_fd = create_ruleset(_metadata, access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file2_s1d1));
+	ASSERT_EQ(0, mknod(file2_s1d1, mode | 0400, dev))
+	{
+		TH_LOG("Failed to make file \"%s\": %s", file2_s1d1,
+		       strerror(errno));
+	};
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d2));
+
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, mknod(file1_s1d1, mode | 0400, dev));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, link(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+
+	ASSERT_EQ(0, mknod(file1_s1d2, mode | 0400, dev))
+	{
+		TH_LOG("Failed to make file \"%s\": %s", file1_s1d2,
+		       strerror(errno));
+	};
+	ASSERT_EQ(0, link(file1_s1d2, file2_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d2));
+	ASSERT_EQ(0, rename(file1_s1d2, file2_s1d2));
+
+	ASSERT_EQ(0, mknod(file1_s1d3, mode | 0400, dev));
+	ASSERT_EQ(0, link(file1_s1d3, file2_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+	ASSERT_EQ(0, rename(file1_s1d3, file2_s1d3));
+}
+
+TEST_F_FORK(layout1, make_char)
+{
+	/* Creates a /dev/null device. */
+	set_cap(_metadata, CAP_MKNOD);
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_CHAR, S_IFCHR,
+		       makedev(1, 3));
+}
+
+TEST_F_FORK(layout1, make_block)
+{
+	/* Creates a /dev/loop0 device. */
+	set_cap(_metadata, CAP_MKNOD);
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_BLOCK, S_IFBLK,
+		       makedev(7, 0));
+}
+
+TEST_F_FORK(layout1, make_reg_1)
+{
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_REG, S_IFREG, 0);
+}
+
+TEST_F_FORK(layout1, make_reg_2)
+{
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_REG, 0, 0);
+}
+
+TEST_F_FORK(layout1, make_sock)
+{
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_SOCK, S_IFSOCK, 0);
+}
+
+TEST_F_FORK(layout1, make_fifo)
+{
+	test_make_file(_metadata, LANDLOCK_ACCESS_FS_MAKE_FIFO, S_IFIFO, 0);
+}
+
+TEST_F_FORK(layout1, make_sym)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_SYM,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file2_s1d1));
+	ASSERT_EQ(0, symlink("none", file2_s1d1));
+
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d2));
+
+	ASSERT_EQ(0, unlink(file1_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, symlink("none", file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, link(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(-1, rename(file2_s1d1, file1_s1d1));
+	ASSERT_EQ(EACCES, errno);
+
+	ASSERT_EQ(0, symlink("none", file1_s1d2));
+	ASSERT_EQ(0, link(file1_s1d2, file2_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d2));
+	ASSERT_EQ(0, rename(file1_s1d2, file2_s1d2));
+
+	ASSERT_EQ(0, symlink("none", file1_s1d3));
+	ASSERT_EQ(0, link(file1_s1d3, file2_s1d3));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+	ASSERT_EQ(0, rename(file1_s1d3, file2_s1d3));
+}
+
+TEST_F_FORK(layout1, make_dir)
+{
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_MAKE_DIR,
+		},
+		{},
+	};
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, unlink(file1_s1d1));
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file1_s1d3));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Uses file_* as directory names. */
+	ASSERT_EQ(-1, mkdir(file1_s1d1, 0700));
+	ASSERT_EQ(EACCES, errno);
+	ASSERT_EQ(0, mkdir(file1_s1d2, 0700));
+	ASSERT_EQ(0, mkdir(file1_s1d3, 0700));
+}
+
+static int open_proc_fd(struct __test_metadata *const _metadata, const int fd,
+			const int open_flags)
+{
+	static const char path_template[] = "/proc/self/fd/%d";
+	char procfd_path[sizeof(path_template) + 10];
+	const int procfd_path_size =
+		snprintf(procfd_path, sizeof(procfd_path), path_template, fd);
+
+	ASSERT_LT(procfd_path_size, sizeof(procfd_path));
+	return open(procfd_path, open_flags);
+}
+
+TEST_F_FORK(layout1, proc_unlinked_file)
+{
+	const struct rule rules[] = {
+		{
+			.path = file1_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	int reg_fd, proc_fd;
+	const int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_READ_FILE | LANDLOCK_ACCESS_FS_WRITE_FILE,
+		rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	reg_fd = open(file1_s1d2, O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, reg_fd);
+	ASSERT_EQ(0, unlink(file1_s1d2));
+
+	proc_fd = open_proc_fd(_metadata, reg_fd, O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, proc_fd);
+	ASSERT_EQ(0, close(proc_fd));
+
+	proc_fd = open_proc_fd(_metadata, reg_fd, O_RDWR | O_CLOEXEC);
+	ASSERT_EQ(-1, proc_fd)
+	{
+		TH_LOG("Successfully opened /proc/self/fd/%d: %s", reg_fd,
+		       strerror(errno));
+	}
+	ASSERT_EQ(EACCES, errno);
+
+	ASSERT_EQ(0, close(reg_fd));
+}
+
+TEST_F_FORK(layout1, proc_pipe)
+{
+	int proc_fd;
+	int pipe_fds[2];
+	char buf = '\0';
+	const struct rule rules[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	/* Limits read and write access to files tied to the filesystem. */
+	const int ruleset_fd =
+		create_ruleset(_metadata, rules[0].access, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks enforcement for normal files. */
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDWR));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDWR));
+
+	/* Checks access to pipes through FD. */
+	ASSERT_EQ(0, pipe2(pipe_fds, O_CLOEXEC));
+	ASSERT_EQ(1, write(pipe_fds[1], ".", 1))
+	{
+		TH_LOG("Failed to write in pipe: %s", strerror(errno));
+	}
+	ASSERT_EQ(1, read(pipe_fds[0], &buf, 1));
+	ASSERT_EQ('.', buf);
+
+	/* Checks write access to pipe through /proc/self/fd . */
+	proc_fd = open_proc_fd(_metadata, pipe_fds[1], O_WRONLY | O_CLOEXEC);
+	ASSERT_LE(0, proc_fd);
+	ASSERT_EQ(1, write(proc_fd, ".", 1))
+	{
+		TH_LOG("Failed to write through /proc/self/fd/%d: %s",
+		       pipe_fds[1], strerror(errno));
+	}
+	ASSERT_EQ(0, close(proc_fd));
+
+	/* Checks read access to pipe through /proc/self/fd . */
+	proc_fd = open_proc_fd(_metadata, pipe_fds[0], O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, proc_fd);
+	buf = '\0';
+	ASSERT_EQ(1, read(proc_fd, &buf, 1))
+	{
+		TH_LOG("Failed to read through /proc/self/fd/%d: %s",
+		       pipe_fds[1], strerror(errno));
+	}
+	ASSERT_EQ(0, close(proc_fd));
+
+	ASSERT_EQ(0, close(pipe_fds[0]));
+	ASSERT_EQ(0, close(pipe_fds[1]));
+}
+
+/* Invokes truncate(2) and returns its errno or 0. */
+static int test_truncate(const char *const path)
+{
+	if (truncate(path, 10) < 0)
+		return errno;
+	return 0;
+}
+
+/*
+ * Invokes creat(2) and returns its errno or 0.
+ * Closes the opened file descriptor on success.
+ */
+static int test_creat(const char *const path)
+{
+	int fd = creat(path, 0600);
+
+	if (fd < 0)
+		return errno;
+
+	/*
+	 * Mixing error codes from close(2) and creat(2) should not lead to any
+	 * (access type) confusion for this test.
+	 */
+	if (close(fd) < 0)
+		return errno;
+	return 0;
+}
+
+/*
+ * Exercises file truncation when it's not restricted,
+ * as it was the case before LANDLOCK_ACCESS_FS_TRUNCATE existed.
+ */
+TEST_F_FORK(layout1, truncate_unhandled)
+{
+	const char *const file_r = file1_s1d1;
+	const char *const file_w = file2_s1d1;
+	const char *const file_none = file1_s1d2;
+	const struct rule rules[] = {
+		{
+			.path = file_r,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = file_w,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		/* Implicitly: No rights for file_none. */
+		{},
+	};
+
+	const __u64 handled = LANDLOCK_ACCESS_FS_READ_FILE |
+			      LANDLOCK_ACCESS_FS_WRITE_FILE;
+	int ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, handled, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Checks read right: truncate and open with O_TRUNC work, unless the
+	 * file is attempted to be opened for writing.
+	 */
+	EXPECT_EQ(0, test_truncate(file_r));
+	EXPECT_EQ(0, test_open(file_r, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_r, O_WRONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_creat(file_r));
+
+	/*
+	 * Checks write right: truncate and open with O_TRUNC work, unless the
+	 * file is attempted to be opened for reading.
+	 */
+	EXPECT_EQ(0, test_truncate(file_w));
+	EXPECT_EQ(EACCES, test_open(file_w, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(0, test_open(file_w, O_WRONLY | O_TRUNC));
+	EXPECT_EQ(0, test_creat(file_w));
+
+	/*
+	 * Checks "no rights" case: truncate works but all open attempts fail,
+	 * including creat.
+	 */
+	EXPECT_EQ(0, test_truncate(file_none));
+	EXPECT_EQ(EACCES, test_open(file_none, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_none, O_WRONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_creat(file_none));
+}
+
+TEST_F_FORK(layout1, truncate)
+{
+	const char *const file_rwt = file1_s1d1;
+	const char *const file_rw = file2_s1d1;
+	const char *const file_rt = file1_s1d2;
+	const char *const file_t = file2_s1d2;
+	const char *const file_none = file1_s1d3;
+	const char *const dir_t = dir_s2d1;
+	const char *const file_in_dir_t = file1_s2d1;
+	const char *const dir_w = dir_s3d1;
+	const char *const file_in_dir_w = file1_s3d1;
+	const struct rule rules[] = {
+		{
+			.path = file_rwt,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE |
+				  LANDLOCK_ACCESS_FS_TRUNCATE,
+		},
+		{
+			.path = file_rw,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = file_rt,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_TRUNCATE,
+		},
+		{
+			.path = file_t,
+			.access = LANDLOCK_ACCESS_FS_TRUNCATE,
+		},
+		/* Implicitly: No access rights for file_none. */
+		{
+			.path = dir_t,
+			.access = LANDLOCK_ACCESS_FS_TRUNCATE,
+		},
+		{
+			.path = dir_w,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const __u64 handled = LANDLOCK_ACCESS_FS_READ_FILE |
+			      LANDLOCK_ACCESS_FS_WRITE_FILE |
+			      LANDLOCK_ACCESS_FS_TRUNCATE;
+	int ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, handled, rules);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks read, write and truncate rights: truncation works. */
+	EXPECT_EQ(0, test_truncate(file_rwt));
+	EXPECT_EQ(0, test_open(file_rwt, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(0, test_open(file_rwt, O_WRONLY | O_TRUNC));
+
+	/* Checks read and write rights: no truncate variant works. */
+	EXPECT_EQ(EACCES, test_truncate(file_rw));
+	EXPECT_EQ(EACCES, test_open(file_rw, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_rw, O_WRONLY | O_TRUNC));
+
+	/*
+	 * Checks read and truncate rights: truncation works.
+	 *
+	 * Note: Files can get truncated using open() even with O_RDONLY.
+	 */
+	EXPECT_EQ(0, test_truncate(file_rt));
+	EXPECT_EQ(0, test_open(file_rt, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_rt, O_WRONLY | O_TRUNC));
+
+	/* Checks truncate right: truncate works, but can't open file. */
+	EXPECT_EQ(0, test_truncate(file_t));
+	EXPECT_EQ(EACCES, test_open(file_t, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_t, O_WRONLY | O_TRUNC));
+
+	/* Checks "no rights" case: No form of truncation works. */
+	EXPECT_EQ(EACCES, test_truncate(file_none));
+	EXPECT_EQ(EACCES, test_open(file_none, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_none, O_WRONLY | O_TRUNC));
+
+	/*
+	 * Checks truncate right on directory: truncate works on contained
+	 * files.
+	 */
+	EXPECT_EQ(0, test_truncate(file_in_dir_t));
+	EXPECT_EQ(EACCES, test_open(file_in_dir_t, O_RDONLY | O_TRUNC));
+	EXPECT_EQ(EACCES, test_open(file_in_dir_t, O_WRONLY | O_TRUNC));
+
+	/*
+	 * Checks creat in dir_w: This requires the truncate right when
+	 * overwriting an existing file, but does not require it when the file
+	 * is new.
+	 */
+	EXPECT_EQ(EACCES, test_creat(file_in_dir_w));
+
+	ASSERT_EQ(0, unlink(file_in_dir_w));
+	EXPECT_EQ(0, test_creat(file_in_dir_w));
+}
+
+/* Invokes ftruncate(2) and returns its errno or 0. */
+static int test_ftruncate(int fd)
+{
+	if (ftruncate(fd, 10) < 0)
+		return errno;
+	return 0;
+}
+
+TEST_F_FORK(layout1, ftruncate)
+{
+	/*
+	 * This test opens a new file descriptor at different stages of
+	 * Landlock restriction:
+	 *
+	 * without restriction:                    ftruncate works
+	 * something else but truncate restricted: ftruncate works
+	 * truncate restricted and permitted:      ftruncate works
+	 * truncate restricted and not permitted:  ftruncate fails
+	 *
+	 * Whether this works or not is expected to depend on the time when the
+	 * FD was opened, not to depend on the time when ftruncate() was
+	 * called.
+	 */
+	const char *const path = file1_s1d1;
+	const __u64 handled1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			       LANDLOCK_ACCESS_FS_WRITE_FILE;
+	const struct rule layer1[] = {
+		{
+			.path = path,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const __u64 handled2 = LANDLOCK_ACCESS_FS_TRUNCATE;
+	const struct rule layer2[] = {
+		{
+			.path = path,
+			.access = LANDLOCK_ACCESS_FS_TRUNCATE,
+		},
+		{},
+	};
+	const __u64 handled3 = LANDLOCK_ACCESS_FS_TRUNCATE |
+			       LANDLOCK_ACCESS_FS_WRITE_FILE;
+	const struct rule layer3[] = {
+		{
+			.path = path,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	int fd_layer0, fd_layer1, fd_layer2, fd_layer3, ruleset_fd;
+
+	fd_layer0 = open(path, O_WRONLY);
+	EXPECT_EQ(0, test_ftruncate(fd_layer0));
+
+	ruleset_fd = create_ruleset(_metadata, handled1, layer1);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	fd_layer1 = open(path, O_WRONLY);
+	EXPECT_EQ(0, test_ftruncate(fd_layer0));
+	EXPECT_EQ(0, test_ftruncate(fd_layer1));
+
+	ruleset_fd = create_ruleset(_metadata, handled2, layer2);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	fd_layer2 = open(path, O_WRONLY);
+	EXPECT_EQ(0, test_ftruncate(fd_layer0));
+	EXPECT_EQ(0, test_ftruncate(fd_layer1));
+	EXPECT_EQ(0, test_ftruncate(fd_layer2));
+
+	ruleset_fd = create_ruleset(_metadata, handled3, layer3);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	fd_layer3 = open(path, O_WRONLY);
+	EXPECT_EQ(0, test_ftruncate(fd_layer0));
+	EXPECT_EQ(0, test_ftruncate(fd_layer1));
+	EXPECT_EQ(0, test_ftruncate(fd_layer2));
+	EXPECT_EQ(EACCES, test_ftruncate(fd_layer3));
+
+	ASSERT_EQ(0, close(fd_layer0));
+	ASSERT_EQ(0, close(fd_layer1));
+	ASSERT_EQ(0, close(fd_layer2));
+	ASSERT_EQ(0, close(fd_layer3));
+}
+
+/* clang-format off */
+FIXTURE(ftruncate) {};
+/* clang-format on */
+
+FIXTURE_SETUP(ftruncate)
+{
+	prepare_layout(_metadata);
+	create_file(_metadata, file1_s1d1);
+}
+
+FIXTURE_TEARDOWN_PARENT(ftruncate)
+{
+	EXPECT_EQ(0, remove_path(file1_s1d1));
+	cleanup_layout(_metadata);
+}
+
+FIXTURE_VARIANT(ftruncate)
+{
+	const __u64 handled;
+	const __u64 allowed;
+	const int expected_open_result;
+	const int expected_ftruncate_result;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ftruncate, w_w) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_WRITE_FILE,
+	.allowed = LANDLOCK_ACCESS_FS_WRITE_FILE,
+	.expected_open_result = 0,
+	.expected_ftruncate_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ftruncate, t_t) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_TRUNCATE,
+	.allowed = LANDLOCK_ACCESS_FS_TRUNCATE,
+	.expected_open_result = 0,
+	.expected_ftruncate_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ftruncate, wt_w) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_WRITE_FILE | LANDLOCK_ACCESS_FS_TRUNCATE,
+	.allowed = LANDLOCK_ACCESS_FS_WRITE_FILE,
+	.expected_open_result = 0,
+	.expected_ftruncate_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ftruncate, wt_wt) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_WRITE_FILE | LANDLOCK_ACCESS_FS_TRUNCATE,
+	.allowed = LANDLOCK_ACCESS_FS_WRITE_FILE | LANDLOCK_ACCESS_FS_TRUNCATE,
+	.expected_open_result = 0,
+	.expected_ftruncate_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ftruncate, wt_t) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_WRITE_FILE | LANDLOCK_ACCESS_FS_TRUNCATE,
+	.allowed = LANDLOCK_ACCESS_FS_TRUNCATE,
+	.expected_open_result = EACCES,
+};
+
+TEST_F_FORK(ftruncate, open_and_ftruncate)
+{
+	const char *const path = file1_s1d1;
+	const struct rule rules[] = {
+		{
+			.path = path,
+			.access = variant->allowed,
+		},
+		{},
+	};
+	int fd, ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, variant->handled, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	fd = open(path, O_WRONLY);
+	EXPECT_EQ(variant->expected_open_result, (fd < 0 ? errno : 0));
+	if (fd >= 0) {
+		EXPECT_EQ(variant->expected_ftruncate_result,
+			  test_ftruncate(fd));
+		ASSERT_EQ(0, close(fd));
+	}
+}
+
+TEST_F_FORK(ftruncate, open_and_ftruncate_in_different_processes)
+{
+	int child, fd, status;
+	int socket_fds[2];
+
+	ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0,
+				socket_fds));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		/*
+		 * Enables Landlock in the child process, open a file descriptor
+		 * where truncation is forbidden and send it to the
+		 * non-landlocked parent process.
+		 */
+		const char *const path = file1_s1d1;
+		const struct rule rules[] = {
+			{
+				.path = path,
+				.access = variant->allowed,
+			},
+			{},
+		};
+		int fd, ruleset_fd;
+
+		ruleset_fd = create_ruleset(_metadata, variant->handled, rules);
+		ASSERT_LE(0, ruleset_fd);
+		enforce_ruleset(_metadata, ruleset_fd);
+		ASSERT_EQ(0, close(ruleset_fd));
+
+		fd = open(path, O_WRONLY);
+		ASSERT_EQ(variant->expected_open_result, (fd < 0 ? errno : 0));
+
+		if (fd >= 0) {
+			ASSERT_EQ(0, send_fd(socket_fds[0], fd));
+			ASSERT_EQ(0, close(fd));
+		}
+
+		ASSERT_EQ(0, close(socket_fds[0]));
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	if (variant->expected_open_result == 0) {
+		fd = recv_fd(socket_fds[1]);
+		ASSERT_LE(0, fd);
+
+		EXPECT_EQ(variant->expected_ftruncate_result,
+			  test_ftruncate(fd));
+		ASSERT_EQ(0, close(fd));
+	}
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	ASSERT_EQ(1, WIFEXITED(status));
+	ASSERT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	ASSERT_EQ(0, close(socket_fds[0]));
+	ASSERT_EQ(0, close(socket_fds[1]));
+}
+
+/* Invokes the FS_IOC_GETFLAGS IOCTL and returns its errno or 0. */
+static int test_fs_ioc_getflags_ioctl(int fd)
+{
+	uint32_t flags;
+
+	if (ioctl(fd, FS_IOC_GETFLAGS, &flags) < 0)
+		return errno;
+	return 0;
+}
+
+TEST(memfd_ftruncate_and_ioctl)
+{
+	const struct landlock_ruleset_attr attr = {
+		.handled_access_fs = ACCESS_ALL,
+	};
+	int ruleset_fd, fd, i;
+
+	/*
+	 * We exercise the same test both with and without Landlock enabled, to
+	 * ensure that it behaves the same in both cases.
+	 */
+	for (i = 0; i < 2; i++) {
+		/* Creates a new memfd. */
+		fd = memfd_create("name", MFD_CLOEXEC);
+		ASSERT_LE(0, fd);
+
+		/*
+		 * Checks that operations associated with the opened file
+		 * (ftruncate, ioctl) are permitted on file descriptors that are
+		 * created in ways other than open(2).
+		 */
+		EXPECT_EQ(0, test_ftruncate(fd));
+		EXPECT_EQ(0, test_fs_ioc_getflags_ioctl(fd));
+
+		ASSERT_EQ(0, close(fd));
+
+		/* Enables Landlock. */
+		ruleset_fd = landlock_create_ruleset(&attr, sizeof(attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+		enforce_ruleset(_metadata, ruleset_fd);
+		ASSERT_EQ(0, close(ruleset_fd));
+	}
+}
+
+static int test_fionread_ioctl(int fd)
+{
+	size_t sz = 0;
+
+	if (ioctl(fd, FIONREAD, &sz) < 0 && errno == EACCES)
+		return errno;
+	return 0;
+}
+
+TEST_F_FORK(layout1, o_path_ftruncate_and_ioctl)
+{
+	const struct landlock_ruleset_attr attr = {
+		.handled_access_fs = ACCESS_ALL,
+	};
+	int ruleset_fd, fd;
+
+	/*
+	 * Checks that for files opened with O_PATH, both ioctl(2) and
+	 * ftruncate(2) yield EBADF, as it is documented in open(2) for the
+	 * O_PATH flag.
+	 */
+	fd = open(dir_s1d1, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+
+	EXPECT_EQ(EBADF, test_ftruncate(fd));
+	EXPECT_EQ(EBADF, test_fs_ioc_getflags_ioctl(fd));
+
+	ASSERT_EQ(0, close(fd));
+
+	/* Enables Landlock. */
+	ruleset_fd = landlock_create_ruleset(&attr, sizeof(attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Checks that after enabling Landlock,
+	 * - the file can still be opened with O_PATH
+	 * - both ioctl and truncate still yield EBADF (not EACCES).
+	 */
+	fd = open(dir_s1d1, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+
+	EXPECT_EQ(EBADF, test_ftruncate(fd));
+	EXPECT_EQ(EBADF, test_fs_ioc_getflags_ioctl(fd));
+
+	ASSERT_EQ(0, close(fd));
+}
+
+/*
+ * ioctl_error - generically call the given ioctl with a pointer to a
+ * sufficiently large zeroed-out memory region.
+ *
+ * Returns the IOCTLs error, or 0.
+ */
+static int ioctl_error(struct __test_metadata *const _metadata, int fd,
+		       unsigned int cmd)
+{
+	char buf[128]; /* sufficiently large */
+	int res, stdinbak_fd;
+
+	/*
+	 * Depending on the IOCTL command, parts of the zeroed-out buffer might
+	 * be interpreted as file descriptor numbers.  We do not want to
+	 * accidentally operate on file descriptor 0 (stdin), so we temporarily
+	 * move stdin to a different FD and close FD 0 for the IOCTL call.
+	 */
+	stdinbak_fd = dup(0);
+	ASSERT_LT(0, stdinbak_fd);
+	ASSERT_EQ(0, close(0));
+
+	/* Invokes the IOCTL with a zeroed-out buffer. */
+	bzero(&buf, sizeof(buf));
+	res = ioctl(fd, cmd, &buf);
+
+	/* Restores the old FD 0 and closes the backup FD. */
+	ASSERT_EQ(0, dup2(stdinbak_fd, 0));
+	ASSERT_EQ(0, close(stdinbak_fd));
+
+	if (res < 0)
+		return errno;
+
+	return 0;
+}
+
+/* Define some linux/falloc.h IOCTL commands which are not available in uapi headers. */
+struct space_resv {
+	__s16 l_type;
+	__s16 l_whence;
+	__s64 l_start;
+	__s64 l_len; /* len == 0 means until end of file */
+	__s32 l_sysid;
+	__u32 l_pid;
+	__s32 l_pad[4]; /* reserved area */
+};
+
+#define FS_IOC_RESVSP _IOW('X', 40, struct space_resv)
+#define FS_IOC_UNRESVSP _IOW('X', 41, struct space_resv)
+#define FS_IOC_RESVSP64 _IOW('X', 42, struct space_resv)
+#define FS_IOC_UNRESVSP64 _IOW('X', 43, struct space_resv)
+#define FS_IOC_ZERO_RANGE _IOW('X', 57, struct space_resv)
+
+/*
+ * Tests a series of blanket-permitted and denied IOCTLs.
+ */
+TEST_F_FORK(layout1, blanket_permitted_ioctls)
+{
+	const struct landlock_ruleset_attr attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	};
+	int ruleset_fd, fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = landlock_create_ruleset(&attr, sizeof(attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	fd = open("/dev/null", O_RDWR | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+
+	/*
+	 * Checks permitted commands.
+	 * These ones may return errors, but should not be blocked by Landlock.
+	 */
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIOCLEX));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIONCLEX));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIONBIO));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIOASYNC));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIOQSIZE));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIFREEZE));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FITHAW));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FS_IOC_FIEMAP));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIGETBSZ));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FICLONE));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FICLONERANGE));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FIDEDUPERANGE));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FS_IOC_GETFSUUID));
+	EXPECT_NE(EACCES, ioctl_error(_metadata, fd, FS_IOC_GETFSSYSFSPATH));
+
+	/*
+	 * Checks blocked commands.
+	 * A call to a blocked IOCTL command always returns EACCES.
+	 */
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FIONREAD));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_GETFLAGS));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_SETFLAGS));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_FSGETXATTR));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_FSSETXATTR));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FIBMAP));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_RESVSP));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_RESVSP64));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_UNRESVSP));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_UNRESVSP64));
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FS_IOC_ZERO_RANGE));
+
+	/* Default case is also blocked. */
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, 0xc00ffeee));
+
+	ASSERT_EQ(0, close(fd));
+}
+
+/*
+ * Named pipes are not governed by the LANDLOCK_ACCESS_FS_IOCTL_DEV right,
+ * because they are not character or block devices.
+ */
+TEST_F_FORK(layout1, named_pipe_ioctl)
+{
+	pid_t child_pid;
+	int fd, ruleset_fd;
+	const char *const path = file1_s1d1;
+	const struct landlock_ruleset_attr attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	};
+
+	ASSERT_EQ(0, unlink(path));
+	ASSERT_EQ(0, mkfifo(path, 0600));
+
+	/* Enables Landlock. */
+	ruleset_fd = landlock_create_ruleset(&attr, sizeof(attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* The child process opens the pipe for writing. */
+	child_pid = fork();
+	ASSERT_NE(-1, child_pid);
+	if (child_pid == 0) {
+		fd = open(path, O_WRONLY);
+		close(fd);
+		exit(0);
+	}
+
+	fd = open(path, O_RDONLY);
+	ASSERT_LE(0, fd);
+
+	/* FIONREAD is implemented by pipefifo_fops. */
+	EXPECT_EQ(0, test_fionread_ioctl(fd));
+
+	ASSERT_EQ(0, close(fd));
+	ASSERT_EQ(0, unlink(path));
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, NULL, 0));
+}
+
+/* For named UNIX domain sockets, no IOCTL restrictions apply. */
+TEST_F_FORK(layout1, named_unix_domain_socket_ioctl)
+{
+	const char *const path = file1_s1d1;
+	int srv_fd, cli_fd, ruleset_fd;
+	socklen_t size;
+	struct sockaddr_un srv_un, cli_un;
+	const struct landlock_ruleset_attr attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	};
+
+	/* Sets up a server */
+	srv_un.sun_family = AF_UNIX;
+	strncpy(srv_un.sun_path, path, sizeof(srv_un.sun_path));
+
+	ASSERT_EQ(0, unlink(path));
+	srv_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, srv_fd);
+
+	size = offsetof(struct sockaddr_un, sun_path) + strlen(srv_un.sun_path);
+	ASSERT_EQ(0, bind(srv_fd, (struct sockaddr *)&srv_un, size));
+	ASSERT_EQ(0, listen(srv_fd, 10 /* qlen */));
+
+	/* Enables Landlock. */
+	ruleset_fd = landlock_create_ruleset(&attr, sizeof(attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Sets up a client connection to it */
+	cli_un.sun_family = AF_UNIX;
+	cli_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, cli_fd);
+
+	size = offsetof(struct sockaddr_un, sun_path) + strlen(cli_un.sun_path);
+	ASSERT_EQ(0, bind(cli_fd, (struct sockaddr *)&cli_un, size));
+
+	bzero(&cli_un, sizeof(cli_un));
+	cli_un.sun_family = AF_UNIX;
+	strncpy(cli_un.sun_path, path, sizeof(cli_un.sun_path));
+	size = offsetof(struct sockaddr_un, sun_path) + strlen(cli_un.sun_path);
+
+	ASSERT_EQ(0, connect(cli_fd, (struct sockaddr *)&cli_un, size));
+
+	/* FIONREAD and other IOCTLs should not be forbidden. */
+	EXPECT_EQ(0, test_fionread_ioctl(cli_fd));
+
+	ASSERT_EQ(0, close(cli_fd));
+}
+
+/* clang-format off */
+FIXTURE(ioctl) {};
+
+FIXTURE_SETUP(ioctl) {};
+
+FIXTURE_TEARDOWN(ioctl) {};
+/* clang-format on */
+
+FIXTURE_VARIANT(ioctl)
+{
+	const __u64 handled;
+	const __u64 allowed;
+	const mode_t open_mode;
+	/*
+	 * FIONREAD is used as a characteristic device-specific IOCTL command.
+	 * It is implemented in fs/ioctl.c for regular files,
+	 * but we do not blanket-permit it for devices.
+	 */
+	const int expected_fionread_result;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ioctl, handled_i_allowed_none) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	.allowed = 0,
+	.open_mode = O_RDWR,
+	.expected_fionread_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ioctl, handled_i_allowed_i) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	.allowed = LANDLOCK_ACCESS_FS_IOCTL_DEV,
+	.open_mode = O_RDWR,
+	.expected_fionread_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ioctl, unhandled) {
+	/* clang-format on */
+	.handled = LANDLOCK_ACCESS_FS_EXECUTE,
+	.allowed = LANDLOCK_ACCESS_FS_EXECUTE,
+	.open_mode = O_RDWR,
+	.expected_fionread_result = 0,
+};
+
+TEST_F_FORK(ioctl, handle_dir_access_file)
+{
+	const int flag = 0;
+	const struct rule rules[] = {
+		{
+			.path = "/dev",
+			.access = variant->allowed,
+		},
+		{},
+	};
+	int file_fd, ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, variant->handled, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	file_fd = open("/dev/zero", variant->open_mode);
+	ASSERT_LE(0, file_fd);
+
+	/* Checks that IOCTL commands return the expected errors. */
+	EXPECT_EQ(variant->expected_fionread_result,
+		  test_fionread_ioctl(file_fd));
+
+	/* Checks that unrestrictable commands are unrestricted. */
+	EXPECT_EQ(0, ioctl(file_fd, FIOCLEX));
+	EXPECT_EQ(0, ioctl(file_fd, FIONCLEX));
+	EXPECT_EQ(0, ioctl(file_fd, FIONBIO, &flag));
+	EXPECT_EQ(0, ioctl(file_fd, FIOASYNC, &flag));
+	EXPECT_EQ(0, ioctl(file_fd, FIGETBSZ, &flag));
+
+	ASSERT_EQ(0, close(file_fd));
+}
+
+TEST_F_FORK(ioctl, handle_dir_access_dir)
+{
+	const int flag = 0;
+	const struct rule rules[] = {
+		{
+			.path = "/dev",
+			.access = variant->allowed,
+		},
+		{},
+	};
+	int dir_fd, ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, variant->handled, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/*
+	 * Ignore variant->open_mode for this test, as we intend to open a
+	 * directory.  If the directory can not be opened, the variant is
+	 * infeasible to test with an opened directory.
+	 */
+	dir_fd = open("/dev", O_RDONLY);
+	if (dir_fd < 0)
+		return;
+
+	/*
+	 * Checks that IOCTL commands return the expected errors.
+	 * We do not use the expected values from the fixture here.
+	 *
+	 * When using IOCTL on a directory, no Landlock restrictions apply.
+	 */
+	EXPECT_EQ(0, test_fionread_ioctl(dir_fd));
+
+	/* Checks that unrestrictable commands are unrestricted. */
+	EXPECT_EQ(0, ioctl(dir_fd, FIOCLEX));
+	EXPECT_EQ(0, ioctl(dir_fd, FIONCLEX));
+	EXPECT_EQ(0, ioctl(dir_fd, FIONBIO, &flag));
+	EXPECT_EQ(0, ioctl(dir_fd, FIOASYNC, &flag));
+	EXPECT_EQ(0, ioctl(dir_fd, FIGETBSZ, &flag));
+
+	ASSERT_EQ(0, close(dir_fd));
+}
+
+TEST_F_FORK(ioctl, handle_file_access_file)
+{
+	const int flag = 0;
+	const struct rule rules[] = {
+		{
+			.path = "/dev/zero",
+			.access = variant->allowed,
+		},
+		{},
+	};
+	int file_fd, ruleset_fd;
+
+	/* Enables Landlock. */
+	ruleset_fd = create_ruleset(_metadata, variant->handled, rules);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	file_fd = open("/dev/zero", variant->open_mode);
+	ASSERT_LE(0, file_fd)
+	{
+		TH_LOG("Failed to open /dev/zero: %s", strerror(errno));
+	}
+
+	/* Checks that IOCTL commands return the expected errors. */
+	EXPECT_EQ(variant->expected_fionread_result,
+		  test_fionread_ioctl(file_fd));
+
+	/* Checks that unrestrictable commands are unrestricted. */
+	EXPECT_EQ(0, ioctl(file_fd, FIOCLEX));
+	EXPECT_EQ(0, ioctl(file_fd, FIONCLEX));
+	EXPECT_EQ(0, ioctl(file_fd, FIONBIO, &flag));
+	EXPECT_EQ(0, ioctl(file_fd, FIOASYNC, &flag));
+	EXPECT_EQ(0, ioctl(file_fd, FIGETBSZ, &flag));
+
+	ASSERT_EQ(0, close(file_fd));
+}
+
+/* clang-format off */
+FIXTURE(layout1_bind) {};
+/* clang-format on */
+
+static const char bind_dir_s1d3[] = TMP_DIR "/s2d1/s2d2/s1d3";
+static const char bind_file1_s1d3[] = TMP_DIR "/s2d1/s2d2/s1d3/f1";
+
+/* Move targets for disconnected path tests. */
+static const char dir_s4d1[] = TMP_DIR "/s4d1";
+static const char file1_s4d1[] = TMP_DIR "/s4d1/f1";
+static const char file2_s4d1[] = TMP_DIR "/s4d1/f2";
+static const char dir_s4d2[] = TMP_DIR "/s4d1/s4d2";
+static const char file1_s4d2[] = TMP_DIR "/s4d1/s4d2/f1";
+static const char file1_name[] = "f1";
+static const char file2_name[] = "f2";
+
+FIXTURE_SETUP(layout1_bind)
+{
+	prepare_layout(_metadata);
+
+	create_layout1(_metadata);
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount(dir_s1d2, dir_s2d2, NULL, MS_BIND, NULL));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout1_bind)
+{
+	/* umount(dir_s2d2)) is handled by namespace lifetime. */
+
+	remove_path(file1_s4d1);
+	remove_path(file2_s4d1);
+
+	remove_layout1(_metadata);
+
+	cleanup_layout(_metadata);
+}
+
+/*
+ * layout1_bind hierarchy:
+ *
+ * tmp
+ * ├── s1d1
+ * │   ├── f1
+ * │   ├── f2
+ * │   └── s1d2
+ * │       ├── f1
+ * │       ├── f2
+ * │       └── s1d3 [disconnected by path_disconnected]
+ * │           ├── f1
+ * │           └── f2
+ * ├── s2d1
+ * │   ├── f1
+ * │   └── s2d2 [bind mount from s1d2]
+ * │       ├── f1
+ * │       ├── f2
+ * │       └── s1d3
+ * │           ├── f1
+ * │           └── f2
+ * ├── s3d1
+ * │   └── s3d2
+ * │       └── s3d3
+ * └── s4d1 [renamed from s1d3 by path_disconnected]
+ *     ├── f1
+ *     ├── f2
+ *     └── s4d2
+ *         └── f1
+ */
+
+TEST_F_FORK(layout1_bind, no_restriction)
+{
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(dir_s2d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s2d1, O_RDONLY));
+	ASSERT_EQ(0, test_open(dir_s2d2, O_RDONLY));
+	ASSERT_EQ(0, test_open(file1_s2d2, O_RDONLY));
+	ASSERT_EQ(ENOENT, test_open(dir_s2d3, O_RDONLY));
+	ASSERT_EQ(ENOENT, test_open(file1_s2d3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(bind_dir_s1d3, O_RDONLY));
+	ASSERT_EQ(0, test_open(bind_file1_s1d3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(dir_s3d1, O_RDONLY));
+}
+
+TEST_F_FORK(layout1_bind, same_content_same_file)
+{
+	/*
+	 * Sets access right on parent directories of both source and
+	 * destination mount points.
+	 */
+	const struct rule layer1_parent[] = {
+		{
+			.path = dir_s1d1,
+			.access = ACCESS_RO,
+		},
+		{
+			.path = dir_s2d1,
+			.access = ACCESS_RW,
+		},
+		{},
+	};
+	/*
+	 * Sets access rights on the same bind-mounted directories.  The result
+	 * should be ACCESS_RW for both directories, but not both hierarchies
+	 * because of the first layer.
+	 */
+	const struct rule layer2_mount_point[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = dir_s2d2,
+			.access = ACCESS_RW,
+		},
+		{},
+	};
+	/* Only allow read-access to the s1d3 hierarchies. */
+	const struct rule layer3_source[] = {
+		{
+			.path = dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	/* Removes all access rights. */
+	const struct rule layer4_destination[] = {
+		{
+			.path = bind_file1_s1d3,
+			.access = LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	/* Sets rules for the parent directories. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer1_parent);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks source hierarchy. */
+	ASSERT_EQ(0, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(0, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* Checks destination hierarchy. */
+	ASSERT_EQ(0, test_open(file1_s2d1, O_RDWR));
+	ASSERT_EQ(0, test_open(dir_s2d1, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(file1_s2d2, O_RDWR));
+	ASSERT_EQ(0, test_open(dir_s2d2, O_RDONLY | O_DIRECTORY));
+
+	/* Sets rules for the mount points. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer2_mount_point);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks source hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d1, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(0, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	/* Checks destination hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s2d1, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s2d1, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s2d1, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(file1_s2d2, O_RDWR));
+	ASSERT_EQ(0, test_open(dir_s2d2, O_RDONLY | O_DIRECTORY));
+	ASSERT_EQ(0, test_open(bind_dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/* Sets a (shared) rule only on the source. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer3_source);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks source hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d2, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d2, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/* Checks destination hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s2d2, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s2d2, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(dir_s2d2, O_RDONLY | O_DIRECTORY));
+
+	ASSERT_EQ(0, test_open(bind_file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(bind_file1_s1d3, O_WRONLY));
+	ASSERT_EQ(EACCES, test_open(bind_dir_s1d3, O_RDONLY | O_DIRECTORY));
+
+	/* Sets a (shared) rule only on the destination. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer4_destination);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks source hierarchy. */
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(file1_s1d3, O_WRONLY));
+
+	/* Checks destination hierarchy. */
+	ASSERT_EQ(EACCES, test_open(bind_file1_s1d3, O_RDONLY));
+	ASSERT_EQ(EACCES, test_open(bind_file1_s1d3, O_WRONLY));
+}
+
+TEST_F_FORK(layout1_bind, reparent_cross_mount)
+{
+	const struct rule layer1[] = {
+		{
+			/* dir_s2d1 is beneath the dir_s2d2 mount point. */
+			.path = dir_s2d1,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{
+			.path = bind_dir_s1d3,
+			.access = LANDLOCK_ACCESS_FS_EXECUTE,
+		},
+		{},
+	};
+	int ruleset_fd = create_ruleset(
+		_metadata,
+		LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_EXECUTE, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks basic denied move. */
+	ASSERT_EQ(-1, rename(file1_s1d1, file1_s1d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Checks real cross-mount move (Landlock is not involved). */
+	ASSERT_EQ(-1, rename(file1_s2d1, file1_s2d2));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Checks move that will give more accesses. */
+	ASSERT_EQ(-1, rename(file1_s2d2, bind_file1_s1d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Checks legitimate downgrade move. */
+	ASSERT_EQ(0, rename(bind_file1_s1d3, file1_s2d2));
+}
+
+/*
+ * Make sure access to file through a disconnected path works as expected.
+ * This test moves s1d3 to s4d1.
+ */
+TEST_F_FORK(layout1_bind, path_disconnected)
+{
+	const struct rule layer1_allow_all[] = {
+		{
+			.path = TMP_DIR,
+			.access = ACCESS_ALL,
+		},
+		{},
+	};
+	const struct rule layer2_allow_just_f1[] = {
+		{
+			.path = file1_s1d3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const struct rule layer3_only_s1d2[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+
+	/* Landlock should not deny access just because it is disconnected. */
+	int ruleset_fd_l1 =
+		create_ruleset(_metadata, ACCESS_ALL, layer1_allow_all);
+
+	/* Creates the new ruleset now before we move the dir containing the file. */
+	int ruleset_fd_l2 =
+		create_ruleset(_metadata, ACCESS_RW, layer2_allow_just_f1);
+	int ruleset_fd_l3 =
+		create_ruleset(_metadata, ACCESS_RW, layer3_only_s1d2);
+	int bind_s1d3_fd;
+
+	ASSERT_LE(0, ruleset_fd_l1);
+	ASSERT_LE(0, ruleset_fd_l2);
+	ASSERT_LE(0, ruleset_fd_l3);
+
+	enforce_ruleset(_metadata, ruleset_fd_l1);
+	EXPECT_EQ(0, close(ruleset_fd_l1));
+
+	bind_s1d3_fd = open(bind_dir_s1d3, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, bind_s1d3_fd);
+
+	/* Tests access is possible before we move. */
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file2_name, O_RDONLY));
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, "..", O_RDONLY | O_DIRECTORY));
+
+	/* Makes it disconnected. */
+	ASSERT_EQ(0, rename(dir_s1d3, dir_s4d1))
+	{
+		TH_LOG("Failed to rename %s to %s: %s", dir_s1d3, dir_s4d1,
+		       strerror(errno));
+	}
+
+	/* Tests that access is still possible. */
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file2_name, O_RDONLY));
+
+	/*
+	 * Tests that ".." is not possible (not because of Landlock, but just
+	 * because it's disconnected).
+	 */
+	EXPECT_EQ(ENOENT,
+		  test_open_rel(bind_s1d3_fd, "..", O_RDONLY | O_DIRECTORY));
+
+	/* This should still work with a narrower rule. */
+	enforce_ruleset(_metadata, ruleset_fd_l2);
+	EXPECT_EQ(0, close(ruleset_fd_l2));
+
+	EXPECT_EQ(0, test_open(file1_s4d1, O_RDONLY));
+	/*
+	 * Accessing a file through a disconnected file descriptor can still be
+	 * allowed by a rule tied to this file, even if it is no longer visible in
+	 * its mount point.
+	 */
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+	EXPECT_EQ(EACCES, test_open_rel(bind_s1d3_fd, file2_name, O_RDONLY));
+
+	enforce_ruleset(_metadata, ruleset_fd_l3);
+	EXPECT_EQ(0, close(ruleset_fd_l3));
+
+	EXPECT_EQ(EACCES, test_open(file1_s4d1, O_RDONLY));
+	/*
+	 * Accessing a file through a disconnected file descriptor can still be
+	 * allowed by a rule tied to the original mount point, even if it is no
+	 * longer visible in its mount point.
+	 */
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+	EXPECT_EQ(EACCES, test_open_rel(bind_s1d3_fd, file2_name, O_RDONLY));
+}
+
+/*
+ * Test that renameat with disconnected paths works under Landlock.  This test
+ * moves s1d3 to s4d2, so that we can have a rule allowing refers on the move
+ * target's immediate parent.
+ */
+TEST_F_FORK(layout1_bind, path_disconnected_rename)
+{
+	const struct rule layer1[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_MAKE_DIR |
+				  LANDLOCK_ACCESS_FS_REMOVE_DIR |
+				  LANDLOCK_ACCESS_FS_MAKE_REG |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE |
+				  LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = dir_s4d1,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_MAKE_DIR |
+				  LANDLOCK_ACCESS_FS_REMOVE_DIR |
+				  LANDLOCK_ACCESS_FS_MAKE_REG |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE |
+				  LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{}
+	};
+
+	/* This layer only handles LANDLOCK_ACCESS_FS_READ_FILE. */
+	const struct rule layer2_only_s1d2[] = {
+		{
+			.path = dir_s1d2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	int ruleset_fd_l1, ruleset_fd_l2;
+	pid_t child_pid;
+	int bind_s1d3_fd, status;
+
+	ASSERT_EQ(0, mkdir(dir_s4d1, 0755))
+	{
+		TH_LOG("Failed to create %s: %s", dir_s4d1, strerror(errno));
+	}
+	ruleset_fd_l1 = create_ruleset(_metadata, ACCESS_ALL, layer1);
+	ruleset_fd_l2 = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_FILE,
+				       layer2_only_s1d2);
+	ASSERT_LE(0, ruleset_fd_l1);
+	ASSERT_LE(0, ruleset_fd_l2);
+
+	enforce_ruleset(_metadata, ruleset_fd_l1);
+	EXPECT_EQ(0, close(ruleset_fd_l1));
+
+	bind_s1d3_fd = open(bind_dir_s1d3, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, bind_s1d3_fd);
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+
+	/* Tests ENOENT priority over EACCES for disconnected directory. */
+	EXPECT_EQ(EACCES, test_open_rel(bind_s1d3_fd, "..", O_DIRECTORY));
+	ASSERT_EQ(0, rename(dir_s1d3, dir_s4d2))
+	{
+		TH_LOG("Failed to rename %s to %s: %s", dir_s1d3, dir_s4d2,
+		       strerror(errno));
+	}
+	EXPECT_EQ(ENOENT, test_open_rel(bind_s1d3_fd, "..", O_DIRECTORY));
+
+	/*
+	 * The file is no longer under s1d2 but we should still be able to access it
+	 * with layer 2 because its mount point is evaluated as the first valid
+	 * directory because it was initially a parent.  Do a fork to test this so
+	 * we don't prevent ourselves from renaming it back later.
+	 */
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		enforce_ruleset(_metadata, ruleset_fd_l2);
+		EXPECT_EQ(0, close(ruleset_fd_l2));
+		EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+		EXPECT_EQ(EACCES, test_open(file1_s4d2, O_RDONLY));
+
+		/*
+		 * Tests that access widening checks indeed prevents us from renaming it
+		 * back.
+		 */
+		EXPECT_EQ(-1, rename(dir_s4d2, dir_s1d3));
+		EXPECT_EQ(EXDEV, errno);
+
+		/*
+		 * Including through the now disconnected fd (but it should return
+		 * EXDEV).
+		 */
+		EXPECT_EQ(-1, renameat(bind_s1d3_fd, file1_name, AT_FDCWD,
+				       file1_s2d2));
+		EXPECT_EQ(EXDEV, errno);
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	EXPECT_EQ(child_pid, waitpid(child_pid, &status, 0));
+	EXPECT_EQ(1, WIFEXITED(status));
+	EXPECT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	ASSERT_EQ(0, rename(dir_s4d2, dir_s1d3))
+	{
+		TH_LOG("Failed to rename %s back to %s: %s", dir_s4d1, dir_s1d3,
+		       strerror(errno));
+	}
+
+	/* Now checks that we can access it under l2. */
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		enforce_ruleset(_metadata, ruleset_fd_l2);
+		EXPECT_EQ(0, close(ruleset_fd_l2));
+		EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+		EXPECT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	EXPECT_EQ(child_pid, waitpid(child_pid, &status, 0));
+	EXPECT_EQ(1, WIFEXITED(status));
+	EXPECT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	/*
+	 * Also test that we can rename via a disconnected path.  We move the
+	 * dir back to the disconnected place first, then we rename file1 to
+	 * file2 through our dir fd.
+	 */
+	ASSERT_EQ(0, rename(dir_s1d3, dir_s4d2))
+	{
+		TH_LOG("Failed to rename %s to %s: %s", dir_s1d3, dir_s4d2,
+		       strerror(errno));
+	}
+	ASSERT_EQ(0,
+		  renameat(bind_s1d3_fd, file1_name, bind_s1d3_fd, file2_name))
+	{
+		TH_LOG("Failed to rename %s to %s within disconnected %s: %s",
+		       file1_name, file2_name, bind_dir_s1d3, strerror(errno));
+	}
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file2_name, O_RDONLY));
+	ASSERT_EQ(0, renameat(bind_s1d3_fd, file2_name, AT_FDCWD, file1_s2d2))
+	{
+		TH_LOG("Failed to rename %s to %s through disconnected %s: %s",
+		       file2_name, file1_s2d2, bind_dir_s1d3, strerror(errno));
+	}
+	EXPECT_EQ(0, test_open(file1_s2d2, O_RDONLY));
+	EXPECT_EQ(0, test_open(file1_s1d2, O_RDONLY));
+
+	/* Move it back using the disconnected path as the target. */
+	ASSERT_EQ(0, renameat(AT_FDCWD, file1_s2d2, bind_s1d3_fd, file1_name))
+	{
+		TH_LOG("Failed to rename %s to %s through disconnected %s: %s",
+		       file1_s1d2, file1_name, bind_dir_s1d3, strerror(errno));
+	}
+
+	/* Now make it connected again. */
+	ASSERT_EQ(0, rename(dir_s4d2, dir_s1d3))
+	{
+		TH_LOG("Failed to rename %s back to %s: %s", dir_s4d2, dir_s1d3,
+		       strerror(errno));
+	}
+
+	/* Checks again that we can access it under l2. */
+	enforce_ruleset(_metadata, ruleset_fd_l2);
+	EXPECT_EQ(0, close(ruleset_fd_l2));
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+	EXPECT_EQ(0, test_open(file1_s1d3, O_RDONLY));
+}
+
+/*
+ * Test that linkat(2) with disconnected paths works under Landlock. This
+ * test moves s1d3 to s4d1.
+ */
+TEST_F_FORK(layout1_bind, path_disconnected_link)
+{
+	/* Ruleset to be applied after renaming s1d3 to s4d1. */
+	const struct rule layer1[] = {
+		{
+			.path = dir_s4d1,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_MAKE_REG |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER |
+				  LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_MAKE_REG |
+				  LANDLOCK_ACCESS_FS_REMOVE_FILE,
+		},
+		{}
+	};
+	int ruleset_fd, bind_s1d3_fd;
+
+	/* Removes unneeded files created by layout1, otherwise it will EEXIST. */
+	ASSERT_EQ(0, unlink(file1_s1d2));
+	ASSERT_EQ(0, unlink(file2_s1d3));
+
+	bind_s1d3_fd = open(bind_dir_s1d3, O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, bind_s1d3_fd);
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY));
+
+	/* Disconnects bind_s1d3_fd. */
+	ASSERT_EQ(0, rename(dir_s1d3, dir_s4d1))
+	{
+		TH_LOG("Failed to rename %s to %s: %s", dir_s1d3, dir_s4d1,
+		       strerror(errno));
+	}
+
+	/* Need this later to test different parent link. */
+	ASSERT_EQ(0, mkdir(dir_s4d2, 0755))
+	{
+		TH_LOG("Failed to create %s: %s", dir_s4d2, strerror(errno));
+	}
+
+	ruleset_fd = create_ruleset(_metadata, ACCESS_ALL, layer1);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* From disconnected to connected. */
+	ASSERT_EQ(0, linkat(bind_s1d3_fd, file1_name, AT_FDCWD, file1_s2d2, 0))
+	{
+		TH_LOG("Failed to link %s to %s via disconnected %s: %s",
+		       file1_name, file1_s2d2, bind_dir_s1d3, strerror(errno));
+	}
+
+	/* Tests that we can access via the new link... */
+	EXPECT_EQ(0, test_open(file1_s2d2, O_RDONLY))
+	{
+		TH_LOG("Failed to open newly linked %s: %s", file1_s2d2,
+		       strerror(errno));
+	}
+
+	/* ...as well as the old one. */
+	EXPECT_EQ(0, test_open(file1_s4d1, O_RDONLY))
+	{
+		TH_LOG("Failed to open original %s: %s", file1_s4d1,
+		       strerror(errno));
+	}
+
+	/* From connected to disconnected. */
+	ASSERT_EQ(0, unlink(file1_s4d1));
+	ASSERT_EQ(0, linkat(AT_FDCWD, file1_s2d2, bind_s1d3_fd, file2_name, 0))
+	{
+		TH_LOG("Failed to link %s to %s via disconnected %s: %s",
+		       file1_s2d2, file2_name, bind_dir_s1d3, strerror(errno));
+	}
+	EXPECT_EQ(0, test_open(file2_s4d1, O_RDONLY));
+	ASSERT_EQ(0, unlink(file1_s2d2));
+
+	/* From disconnected to disconnected (same parent). */
+	ASSERT_EQ(0,
+		  linkat(bind_s1d3_fd, file2_name, bind_s1d3_fd, file1_name, 0))
+	{
+		TH_LOG("Failed to link %s to %s within disconnected %s: %s",
+		       file2_name, file1_name, bind_dir_s1d3, strerror(errno));
+	}
+	EXPECT_EQ(0, test_open(file1_s4d1, O_RDONLY))
+	{
+		TH_LOG("Failed to open newly linked %s: %s", file1_s4d1,
+		       strerror(errno));
+	}
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, file1_name, O_RDONLY))
+	{
+		TH_LOG("Failed to open %s through newly created link under disconnected path: %s",
+		       file1_name, strerror(errno));
+	}
+	ASSERT_EQ(0, unlink(file2_s4d1));
+
+	/* From disconnected to disconnected (different parent). */
+	ASSERT_EQ(0,
+		  linkat(bind_s1d3_fd, file1_name, bind_s1d3_fd, "s4d2/f1", 0))
+	{
+		TH_LOG("Failed to link %s to %s within disconnected %s: %s",
+		       file1_name, "s4d2/f1", bind_dir_s1d3, strerror(errno));
+	}
+	EXPECT_EQ(0, test_open(file1_s4d2, O_RDONLY))
+	{
+		TH_LOG("Failed to open %s after link: %s", file1_s4d2,
+		       strerror(errno));
+	}
+	EXPECT_EQ(0, test_open_rel(bind_s1d3_fd, "s4d2/f1", O_RDONLY))
+	{
+		TH_LOG("Failed to open %s through disconnected path after link: %s",
+		       "s4d2/f1", strerror(errno));
+	}
+}
+
+/*
+ * layout4_disconnected_leafs with bind mount and renames:
+ *
+ * tmp
+ * ├── s1d1
+ * │   └── s1d2 [source of the bind mount]
+ * │       ├── s1d31
+ * │       │   └── s1d41 [now renamed beneath s3d1]
+ * │       │       ├── f1
+ * │       │       └── f2
+ * │       └── s1d32
+ * │           └── s1d42 [now renamed beneath s4d1]
+ * │               ├── f3
+ * │               └── f4
+ * ├── s2d1
+ * │   └── s2d2 [bind mount of s1d2]
+ * │       ├── s1d31
+ * │       │   └── s1d41 [opened FD, now renamed beneath s3d1]
+ * │       │       ├── f1
+ * │       │       └── f2
+ * │       └── s1d32
+ * │           └── s1d42 [opened FD, now renamed beneath s4d1]
+ * │               ├── f3
+ * │               └── f4
+ * ├── s3d1
+ * │   └── s1d41 [renamed here]
+ * │       ├── f1
+ * │       └── f2
+ * └── s4d1
+ *     └── s1d42 [renamed here]
+ *         ├── f3
+ *         └── f4
+ */
+/* clang-format off */
+FIXTURE(layout4_disconnected_leafs) {
+	int s2d2_fd;
+};
+/* clang-format on */
+
+FIXTURE_SETUP(layout4_disconnected_leafs)
+{
+	prepare_layout(_metadata);
+
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d31/s1d41/f1");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d31/s1d41/f2");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d32/s1d42/f3");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d32/s1d42/f4");
+	create_directory(_metadata, TMP_DIR "/s2d1/s2d2");
+	create_directory(_metadata, TMP_DIR "/s3d1");
+	create_directory(_metadata, TMP_DIR "/s4d1");
+
+	self->s2d2_fd =
+		open(TMP_DIR "/s2d1/s2d2", O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, self->s2d2_fd);
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount(TMP_DIR "/s1d1/s1d2", TMP_DIR "/s2d1/s2d2", NULL,
+			   MS_BIND, NULL));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout4_disconnected_leafs)
+{
+	/* umount(TMP_DIR "/s2d1") is handled by namespace lifetime. */
+
+	/* Removes files after renames. */
+	remove_path(TMP_DIR "/s3d1/s1d41/f1");
+	remove_path(TMP_DIR "/s3d1/s1d41/f2");
+	remove_path(TMP_DIR "/s4d1/s1d42/f1");
+	remove_path(TMP_DIR "/s4d1/s1d42/f3");
+	remove_path(TMP_DIR "/s4d1/s1d42/f4");
+	remove_path(TMP_DIR "/s4d1/s1d42/f5");
+
+	cleanup_layout(_metadata);
+}
+
+FIXTURE_VARIANT(layout4_disconnected_leafs)
+{
+	/*
+	 * Parent of the bind mount source.  It should always be ignored when
+	 * testing against files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_s1d1;
+	/*
+	 * Source of bind mount (to s2d2).  It should always be enforced when
+	 * testing against files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_s1d2;
+	/*
+	 * Original parent of s1d41.  It should always be ignored when testing
+	 * against files under the s1d41 disconnected directory.
+	 */
+	const __u64 allowed_s1d31;
+	/*
+	 * Original parent of s1d42.  It should always be ignored when testing
+	 * against files under the s1d42 disconnected directory.
+	 */
+	const __u64 allowed_s1d32;
+	/*
+	 * Opened and disconnected source directory.  It should always be enforced
+	 * when testing against files under the s1d41 disconnected directory.
+	 */
+	const __u64 allowed_s1d41;
+	/*
+	 * Opened and disconnected source directory.  It should always be enforced
+	 * when testing against files under the s1d42 disconnected directory.
+	 */
+	const __u64 allowed_s1d42;
+	/*
+	 * File in the s1d41 disconnected directory.  It should always be enforced
+	 * when testing against itself under the s1d41 disconnected directory.
+	 */
+	const __u64 allowed_f1;
+	/*
+	 * File in the s1d41 disconnected directory.  It should always be enforced
+	 * when testing against itself under the s1d41 disconnected directory.
+	 */
+	const __u64 allowed_f2;
+	/*
+	 * File in the s1d42 disconnected directory.  It should always be enforced
+	 * when testing against itself under the s1d42 disconnected directory.
+	 */
+	const __u64 allowed_f3;
+	/*
+	 * Parent of the bind mount destination.  It should always be enforced when
+	 * testing against files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_s2d1;
+	/*
+	 * Directory covered by the bind mount.  It should always be ignored when
+	 * testing against files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_s2d2;
+	/*
+	 * New parent of the renamed s1d41.  It should always be ignored when
+	 * testing against files under the s1d41 disconnected directory.
+	 */
+	const __u64 allowed_s3d1;
+	/*
+	 * New parent of the renamed s1d42.  It should always be ignored when
+	 * testing against files under the s1d42 disconnected directory.
+	 */
+	const __u64 allowed_s4d1;
+
+	/* Expected result of the call to open([fd:s1d41]/f1, O_RDONLY). */
+	const int expected_read_result;
+	/* Expected result of the call to renameat([fd:s1d41]/f1, [fd:s1d42]/f1). */
+	const int expected_rename_result;
+	/*
+	 * Expected result of the call to renameat([fd:s1d41]/f2, [fd:s1d42]/f3,
+	 * RENAME_EXCHANGE).
+	 */
+	const int expected_exchange_result;
+	/* Expected result of the call to renameat([fd:s1d42]/f4, [fd:s1d42]/f5). */
+	const int expected_same_dir_rename_result;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d1_mount_src_parent) {
+	/* clang-format on */
+	.allowed_s1d1 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d2_mount_src_refer) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d2_mount_src_create) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d2_mount_src_rename) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d31_s1d32_old_parent) {
+	/* clang-format on */
+	.allowed_s1d31 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_READ_FILE |
+			 LANDLOCK_ACCESS_FS_EXECUTE |
+			 LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s1d32 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_READ_FILE |
+			 LANDLOCK_ACCESS_FS_EXECUTE |
+			 LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d41_s1d42_disconnected_refer) {
+	/* clang-format on */
+	.allowed_s1d41 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_READ_FILE,
+	.allowed_s1d42 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d41_s1d42_disconnected_create) {
+	/* clang-format on */
+	.allowed_s1d41 = LANDLOCK_ACCESS_FS_READ_FILE |
+			 LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s1d42 = LANDLOCK_ACCESS_FS_READ_FILE |
+			 LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d41_s1d42_disconnected_rename_even) {
+	/* clang-format on */
+	.allowed_s1d41 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s1d42 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* The destination directory has more access right. */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d41_s1d42_disconnected_rename_more) {
+	/* clang-format on */
+	.allowed_s1d41 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s1d42 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_MAKE_REG |
+			 LANDLOCK_ACCESS_FS_EXECUTE,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	/* Access denied. */
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* The destination directory has less access right. */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s1d41_s1d42_disconnected_rename_less) {
+	/* clang-format on */
+	.allowed_s1d41 = LANDLOCK_ACCESS_FS_REFER |
+			 LANDLOCK_ACCESS_FS_MAKE_REG |
+			 LANDLOCK_ACCESS_FS_EXECUTE,
+	.allowed_s1d42 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	/* Access allowed. */
+	.expected_rename_result = 0,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s2d1_mount_dst_parent_create) {
+	/* clang-format on */
+	.allowed_s2d1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s2d1_mount_dst_parent_refer) {
+	/* clang-format on */
+	.allowed_s2d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s2d1_mount_dst_parent_mini) {
+	/* clang-format on */
+	.allowed_s2d1 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s2d2_covered_by_mount) {
+	/* clang-format on */
+	.allowed_s2d2 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* Tests collect_domain_accesses(). */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s3d1_s4d1_new_parent_refer) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s3d1_s4d1_new_parent_create) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs,
+		    s3d1_s4d1_disconnected_rename_even){
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* The destination directory has more access right. */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s3d1_s4d1_disconnected_rename_more) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG |
+			LANDLOCK_ACCESS_FS_EXECUTE,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	/* Access denied. */
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* The destination directory has less access right. */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, s3d1_s4d1_disconnected_rename_less) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG |
+			LANDLOCK_ACCESS_FS_EXECUTE,
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	/* Access allowed. */
+	.expected_rename_result = 0,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout4_disconnected_leafs, f1_f2_f3) {
+	/* clang-format on */
+	.allowed_f1 = LANDLOCK_ACCESS_FS_READ_FILE,
+	.allowed_f2 = LANDLOCK_ACCESS_FS_READ_FILE,
+	.allowed_f3 = LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+TEST_F_FORK(layout4_disconnected_leafs, read_rename_exchange)
+{
+	const __u64 handled_access =
+		LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE |
+		LANDLOCK_ACCESS_FS_EXECUTE | LANDLOCK_ACCESS_FS_MAKE_REG;
+	const struct rule rules[] = {
+		{
+			.path = TMP_DIR "/s1d1",
+			.access = variant->allowed_s1d1,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2",
+			.access = variant->allowed_s1d2,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d31",
+			.access = variant->allowed_s1d31,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d32",
+			.access = variant->allowed_s1d32,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d31/s1d41",
+			.access = variant->allowed_s1d41,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d32/s1d42",
+			.access = variant->allowed_s1d42,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d31/s1d41/f1",
+			.access = variant->allowed_f1,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d31/s1d41/f2",
+			.access = variant->allowed_f2,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d32/s1d42/f3",
+			.access = variant->allowed_f3,
+		},
+		{
+			.path = TMP_DIR "/s2d1",
+			.access = variant->allowed_s2d1,
+		},
+		/* s2d2_fd */
+		{
+			.path = TMP_DIR "/s3d1",
+			.access = variant->allowed_s3d1,
+		},
+		{
+			.path = TMP_DIR "/s4d1",
+			.access = variant->allowed_s4d1,
+		},
+		{},
+	};
+	int ruleset_fd, s1d41_bind_fd, s1d42_bind_fd;
+
+	ruleset_fd = create_ruleset(_metadata, handled_access, rules);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Adds rule for the covered directory. */
+	if (variant->allowed_s2d2) {
+		ASSERT_EQ(0, landlock_add_rule(
+				     ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				     &(struct landlock_path_beneath_attr){
+					     .parent_fd = self->s2d2_fd,
+					     .allowed_access =
+						     variant->allowed_s2d2,
+				     },
+				     0));
+	}
+	EXPECT_EQ(0, close(self->s2d2_fd));
+
+	s1d41_bind_fd = open(TMP_DIR "/s2d1/s2d2/s1d31/s1d41",
+			     O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, s1d41_bind_fd);
+	s1d42_bind_fd = open(TMP_DIR "/s2d1/s2d2/s1d32/s1d42",
+			     O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, s1d42_bind_fd);
+
+	/* Disconnects and checks source and destination directories. */
+	EXPECT_EQ(0, test_open_rel(s1d41_bind_fd, "..", O_DIRECTORY));
+	EXPECT_EQ(0, test_open_rel(s1d42_bind_fd, "..", O_DIRECTORY));
+	/* Renames to make it accessible through s3d1/s1d41 */
+	ASSERT_EQ(0, test_renameat(AT_FDCWD, TMP_DIR "/s1d1/s1d2/s1d31/s1d41",
+				   AT_FDCWD, TMP_DIR "/s3d1/s1d41"));
+	/* Renames to make it accessible through s4d1/s1d42 */
+	ASSERT_EQ(0, test_renameat(AT_FDCWD, TMP_DIR "/s1d1/s1d2/s1d32/s1d42",
+				   AT_FDCWD, TMP_DIR "/s4d1/s1d42"));
+	EXPECT_EQ(ENOENT, test_open_rel(s1d41_bind_fd, "..", O_DIRECTORY));
+	EXPECT_EQ(ENOENT, test_open_rel(s1d42_bind_fd, "..", O_DIRECTORY));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	EXPECT_EQ(variant->expected_read_result,
+		  test_open_rel(s1d41_bind_fd, "f1", O_RDONLY));
+
+	EXPECT_EQ(variant->expected_rename_result,
+		  test_renameat(s1d41_bind_fd, "f1", s1d42_bind_fd, "f1"));
+	EXPECT_EQ(variant->expected_exchange_result,
+		  test_exchangeat(s1d41_bind_fd, "f2", s1d42_bind_fd, "f3"));
+
+	EXPECT_EQ(variant->expected_same_dir_rename_result,
+		  test_renameat(s1d42_bind_fd, "f4", s1d42_bind_fd, "f5"));
+}
+
+/*
+ * layout5_disconnected_branch before rename:
+ *
+ * tmp
+ * ├── s1d1
+ * │   └── s1d2 [source of the first bind mount]
+ * │       └── s1d3
+ * │           ├── s1d41
+ * │           │   ├── f1
+ * │           │   └── f2
+ * │           └── s1d42
+ * │               ├── f3
+ * │               └── f4
+ * ├── s2d1
+ * │   └── s2d2 [source of the second bind mount]
+ * │       └── s2d3
+ * │           └── s2d4 [first s1d2 bind mount]
+ * │               └── s1d3
+ * │                   ├── s1d41
+ * │                   │   ├── f1
+ * │                   │   └── f2
+ * │                   └── s1d42
+ * │                       ├── f3
+ * │                       └── f4
+ * ├── s3d1
+ * │   └── s3d2 [second s2d2 bind mount]
+ * │       └── s2d3
+ * │           └── s2d4 [first s1d2 bind mount]
+ * │               └── s1d3
+ * │                   ├── s1d41
+ * │                   │   ├── f1
+ * │                   │   └── f2
+ * │                   └── s1d42
+ * │                       ├── f3
+ * │                       └── f4
+ * └── s4d1
+ *
+ * After rename:
+ *
+ * tmp
+ * ├── s1d1
+ * │   └── s1d2 [source of the first bind mount]
+ * │       └── s1d3
+ * │           ├── s1d41
+ * │           │   ├── f1
+ * │           │   └── f2
+ * │           └── s1d42
+ * │               ├── f3
+ * │               └── f4
+ * ├── s2d1
+ * │   └── s2d2 [source of the second bind mount]
+ * ├── s3d1
+ * │   └── s3d2 [second s2d2 bind mount]
+ * └── s4d1
+ *     └── s2d3 [renamed here]
+ *         └── s2d4 [first s1d2 bind mount]
+ *             └── s1d3
+ *                 ├── s1d41
+ *                 │   ├── f1
+ *                 │   └── f2
+ *                 └── s1d42
+ *                     ├── f3
+ *                     └── f4
+ *
+ * Decision path for access from the s3d1/s3d2/s2d3/s2d4/s1d3 file descriptor:
+ *   1. first bind mount:   s1d3 -> s1d2
+ *   2. second bind mount:    s2d3
+ *   3. tmp mount:              s4d1 -> tmp [disconnected branch]
+ *   4. second bind mount:        s2d2
+ *   5. tmp mount:                  s3d1 -> tmp
+ *   6. parent mounts:                [...] -> /
+ *
+ * The s4d1 directory is evaluated even if it is not in the s2d2 mount.
+ */
+
+/* clang-format off */
+FIXTURE(layout5_disconnected_branch) {
+	int s2d4_fd, s3d2_fd;
+};
+/* clang-format on */
+
+FIXTURE_SETUP(layout5_disconnected_branch)
+{
+	prepare_layout(_metadata);
+
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d3/s1d41/f1");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d3/s1d41/f2");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f3");
+	create_file(_metadata, TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f4");
+	create_directory(_metadata, TMP_DIR "/s2d1/s2d2/s2d3/s2d4");
+	create_directory(_metadata, TMP_DIR "/s3d1/s3d2");
+	create_directory(_metadata, TMP_DIR "/s4d1");
+
+	self->s2d4_fd = open(TMP_DIR "/s2d1/s2d2/s2d3/s2d4",
+			     O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, self->s2d4_fd);
+
+	self->s3d2_fd =
+		open(TMP_DIR "/s3d1/s3d2", O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, self->s3d2_fd);
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount(TMP_DIR "/s1d1/s1d2", TMP_DIR "/s2d1/s2d2/s2d3/s2d4",
+			   NULL, MS_BIND, NULL));
+	ASSERT_EQ(0, mount(TMP_DIR "/s2d1/s2d2", TMP_DIR "/s3d1/s3d2", NULL,
+			   MS_BIND | MS_REC, NULL));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout5_disconnected_branch)
+{
+	/* Bind mounts are handled by namespace lifetime. */
+
+	/* Removes files after renames. */
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d41/f1");
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d41/f2");
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f1");
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f3");
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f4");
+	remove_path(TMP_DIR "/s1d1/s1d2/s1d3/s1d42/f5");
+
+	cleanup_layout(_metadata);
+}
+
+FIXTURE_VARIANT(layout5_disconnected_branch)
+{
+	/*
+	 * Parent of all files.  It should always be enforced when testing against
+	 * files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_base;
+	/*
+	 * Parent of the first bind mount source.  It should always be ignored when
+	 * testing against files under the s1d41 or s1d42 disconnected directories.
+	 */
+	const __u64 allowed_s1d1;
+	const __u64 allowed_s1d2;
+	const __u64 allowed_s1d3;
+	const __u64 allowed_s2d1;
+	const __u64 allowed_s2d2;
+	const __u64 allowed_s2d3;
+	const __u64 allowed_s2d4;
+	const __u64 allowed_s3d1;
+	const __u64 allowed_s3d2;
+	const __u64 allowed_s4d1;
+
+	/* Expected result of the call to open([fd:s1d3]/s1d41/f1, O_RDONLY). */
+	const int expected_read_result;
+	/*
+	 * Expected result of the call to renameat([fd:s1d3]/s1d41/f1,
+	 * [fd:s1d3]/s1d42/f1).
+	 */
+	const int expected_rename_result;
+	/*
+	 * Expected result of the call to renameat([fd:s1d3]/s1d41/f2,
+	 * [fd:s1d3]/s1d42/f3,  RENAME_EXCHANGE).
+	 */
+	const int expected_exchange_result;
+	/*
+	 * Expected result of the call to renameat([fd:s1d3]/s1d42/f4,
+	 * [fd:s1d3]/s1d42/f5).
+	 */
+	const int expected_same_dir_rename_result;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d1_mount1_src_parent) {
+	/* clang-format on */
+	.allowed_s1d1 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d2_mount1_src_refer) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d2_mount1_src_create) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d2_mount1_src_rename) {
+	/* clang-format on */
+	.allowed_s1d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d3_fd_refer) {
+	/* clang-format on */
+	.allowed_s1d3 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d3_fd_create) {
+	/* clang-format on */
+	.allowed_s1d3 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d3_fd_rename) {
+	/* clang-format on */
+	.allowed_s1d3 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s1d3_fd_full) {
+	/* clang-format on */
+	.allowed_s1d3 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d1_mount2_src_parent) {
+	/* clang-format on */
+	.allowed_s2d1 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d2_mount2_src_refer) {
+	/* clang-format on */
+	.allowed_s2d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d2_mount2_src_create) {
+	/* clang-format on */
+	.allowed_s2d2 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d2_mount2_src_rename) {
+	/* clang-format on */
+	.allowed_s2d2 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d3_mount1_dst_parent_refer) {
+	/* clang-format on */
+	.allowed_s2d3 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d3_mount1_dst_parent_create) {
+	/* clang-format on */
+	.allowed_s2d3 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d3_mount1_dst_parent_rename) {
+	/* clang-format on */
+	.allowed_s2d3 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s2d4_mount1_dst) {
+	/* clang-format on */
+	.allowed_s2d4 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s3d1_mount2_dst_parent_refer) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s3d1_mount2_dst_parent_create) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s3d1_mount2_dst_parent_rename) {
+	/* clang-format on */
+	.allowed_s3d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s3d2_mount1_dst) {
+	/* clang-format on */
+	.allowed_s3d2 = LANDLOCK_ACCESS_FS_REFER |
+			LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_EXECUTE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s4d1_rename_parent_refer) {
+	/* clang-format on */
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = EACCES,
+	.expected_rename_result = EACCES,
+	.expected_exchange_result = EACCES,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s4d1_rename_parent_create) {
+	/* clang-format on */
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_READ_FILE |
+			LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = 0,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = EXDEV,
+	.expected_exchange_result = EXDEV,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout5_disconnected_branch, s4d1_rename_parent_rename) {
+	/* clang-format on */
+	.allowed_s4d1 = LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_MAKE_REG,
+	.expected_read_result = EACCES,
+	.expected_same_dir_rename_result = 0,
+	.expected_rename_result = 0,
+	.expected_exchange_result = 0,
+};
+
+TEST_F_FORK(layout5_disconnected_branch, read_rename_exchange)
+{
+	const __u64 handled_access =
+		LANDLOCK_ACCESS_FS_REFER | LANDLOCK_ACCESS_FS_READ_FILE |
+		LANDLOCK_ACCESS_FS_EXECUTE | LANDLOCK_ACCESS_FS_MAKE_REG;
+	const struct rule rules[] = {
+		{
+			.path = TMP_DIR "/s1d1",
+			.access = variant->allowed_s1d1,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2",
+			.access = variant->allowed_s1d2,
+		},
+		{
+			.path = TMP_DIR "/s1d1/s1d2/s1d3",
+			.access = variant->allowed_s1d3,
+		},
+		{
+			.path = TMP_DIR "/s2d1",
+			.access = variant->allowed_s2d1,
+		},
+		{
+			.path = TMP_DIR "/s2d1/s2d2",
+			.access = variant->allowed_s2d2,
+		},
+		{
+			.path = TMP_DIR "/s2d1/s2d2/s2d3",
+			.access = variant->allowed_s2d3,
+		},
+		/* s2d4_fd */
+		{
+			.path = TMP_DIR "/s3d1",
+			.access = variant->allowed_s3d1,
+		},
+		/* s3d2_fd */
+		{
+			.path = TMP_DIR "/s4d1",
+			.access = variant->allowed_s4d1,
+		},
+		{},
+	};
+	int ruleset_fd, s1d3_bind_fd;
+
+	ruleset_fd = create_ruleset(_metadata, handled_access, rules);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Adds rules for the covered directories. */
+	if (variant->allowed_s2d4) {
+		ASSERT_EQ(0, landlock_add_rule(
+				     ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				     &(struct landlock_path_beneath_attr){
+					     .parent_fd = self->s2d4_fd,
+					     .allowed_access =
+						     variant->allowed_s2d4,
+				     },
+				     0));
+	}
+	EXPECT_EQ(0, close(self->s2d4_fd));
+
+	if (variant->allowed_s3d2) {
+		ASSERT_EQ(0, landlock_add_rule(
+				     ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				     &(struct landlock_path_beneath_attr){
+					     .parent_fd = self->s3d2_fd,
+					     .allowed_access =
+						     variant->allowed_s3d2,
+				     },
+				     0));
+	}
+	EXPECT_EQ(0, close(self->s3d2_fd));
+
+	s1d3_bind_fd = open(TMP_DIR "/s3d1/s3d2/s2d3/s2d4/s1d3",
+			    O_DIRECTORY | O_PATH | O_CLOEXEC);
+	ASSERT_LE(0, s1d3_bind_fd);
+
+	/* Disconnects and checks source and destination directories. */
+	EXPECT_EQ(0, test_open_rel(s1d3_bind_fd, "..", O_DIRECTORY));
+	EXPECT_EQ(0, test_open_rel(s1d3_bind_fd, "../..", O_DIRECTORY));
+	/* Renames to make it accessible through s3d1/s1d41 */
+	ASSERT_EQ(0, test_renameat(AT_FDCWD, TMP_DIR "/s2d1/s2d2/s2d3",
+				   AT_FDCWD, TMP_DIR "/s4d1/s2d3"));
+	EXPECT_EQ(0, test_open_rel(s1d3_bind_fd, "..", O_DIRECTORY));
+	EXPECT_EQ(ENOENT, test_open_rel(s1d3_bind_fd, "../..", O_DIRECTORY));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	EXPECT_EQ(variant->expected_read_result,
+		  test_open_rel(s1d3_bind_fd, "s1d41/f1", O_RDONLY));
+
+	EXPECT_EQ(variant->expected_rename_result,
+		  test_renameat(s1d3_bind_fd, "s1d41/f1", s1d3_bind_fd,
+				"s1d42/f1"));
+	EXPECT_EQ(variant->expected_exchange_result,
+		  test_exchangeat(s1d3_bind_fd, "s1d41/f2", s1d3_bind_fd,
+				  "s1d42/f3"));
+
+	EXPECT_EQ(variant->expected_same_dir_rename_result,
+		  test_renameat(s1d3_bind_fd, "s1d42/f4", s1d3_bind_fd,
+				"s1d42/f5"));
+}
+
+#define LOWER_BASE TMP_DIR "/lower"
+#define LOWER_DATA LOWER_BASE "/data"
+static const char lower_fl1[] = LOWER_DATA "/fl1";
+static const char lower_dl1[] = LOWER_DATA "/dl1";
+static const char lower_dl1_fl2[] = LOWER_DATA "/dl1/fl2";
+static const char lower_fo1[] = LOWER_DATA "/fo1";
+static const char lower_do1[] = LOWER_DATA "/do1";
+static const char lower_do1_fo2[] = LOWER_DATA "/do1/fo2";
+static const char lower_do1_fl3[] = LOWER_DATA "/do1/fl3";
+
+static const char (*lower_base_files[])[] = {
+	&lower_fl1,
+	&lower_fo1,
+	NULL,
+};
+static const char (*lower_base_directories[])[] = {
+	&lower_dl1,
+	&lower_do1,
+	NULL,
+};
+static const char (*lower_sub_files[])[] = {
+	&lower_dl1_fl2,
+	&lower_do1_fo2,
+	&lower_do1_fl3,
+	NULL,
+};
+
+#define UPPER_BASE TMP_DIR "/upper"
+#define UPPER_DATA UPPER_BASE "/data"
+#define UPPER_WORK UPPER_BASE "/work"
+static const char upper_fu1[] = UPPER_DATA "/fu1";
+static const char upper_du1[] = UPPER_DATA "/du1";
+static const char upper_du1_fu2[] = UPPER_DATA "/du1/fu2";
+static const char upper_fo1[] = UPPER_DATA "/fo1";
+static const char upper_do1[] = UPPER_DATA "/do1";
+static const char upper_do1_fo2[] = UPPER_DATA "/do1/fo2";
+static const char upper_do1_fu3[] = UPPER_DATA "/do1/fu3";
+
+static const char (*upper_base_files[])[] = {
+	&upper_fu1,
+	&upper_fo1,
+	NULL,
+};
+static const char (*upper_base_directories[])[] = {
+	&upper_du1,
+	&upper_do1,
+	NULL,
+};
+static const char (*upper_sub_files[])[] = {
+	&upper_du1_fu2,
+	&upper_do1_fo2,
+	&upper_do1_fu3,
+	NULL,
+};
+
+#define MERGE_BASE TMP_DIR "/merge"
+#define MERGE_DATA MERGE_BASE "/data"
+static const char merge_fl1[] = MERGE_DATA "/fl1";
+static const char merge_dl1[] = MERGE_DATA "/dl1";
+static const char merge_dl1_fl2[] = MERGE_DATA "/dl1/fl2";
+static const char merge_fu1[] = MERGE_DATA "/fu1";
+static const char merge_du1[] = MERGE_DATA "/du1";
+static const char merge_du1_fu2[] = MERGE_DATA "/du1/fu2";
+static const char merge_fo1[] = MERGE_DATA "/fo1";
+static const char merge_do1[] = MERGE_DATA "/do1";
+static const char merge_do1_fo2[] = MERGE_DATA "/do1/fo2";
+static const char merge_do1_fl3[] = MERGE_DATA "/do1/fl3";
+static const char merge_do1_fu3[] = MERGE_DATA "/do1/fu3";
+
+static const char (*merge_base_files[])[] = {
+	&merge_fl1,
+	&merge_fu1,
+	&merge_fo1,
+	NULL,
+};
+static const char (*merge_base_directories[])[] = {
+	&merge_dl1,
+	&merge_du1,
+	&merge_do1,
+	NULL,
+};
+static const char (*merge_sub_files[])[] = {
+	&merge_dl1_fl2, &merge_du1_fu2, &merge_do1_fo2,
+	&merge_do1_fl3, &merge_do1_fu3, NULL,
+};
+
+/*
+ * layout2_overlay hierarchy:
+ *
+ * tmp
+ * ├── lower
+ * │   └── data
+ * │       ├── dl1
+ * │       │   └── fl2
+ * │       ├── do1
+ * │       │   ├── fl3
+ * │       │   └── fo2
+ * │       ├── fl1
+ * │       └── fo1
+ * ├── merge
+ * │   └── data
+ * │       ├── dl1
+ * │       │   └── fl2
+ * │       ├── do1
+ * │       │   ├── fl3
+ * │       │   ├── fo2
+ * │       │   └── fu3
+ * │       ├── du1
+ * │       │   └── fu2
+ * │       ├── fl1
+ * │       ├── fo1
+ * │       └── fu1
+ * └── upper
+ *     ├── data
+ *     │   ├── do1
+ *     │   │   ├── fo2
+ *     │   │   └── fu3
+ *     │   ├── du1
+ *     │   │   └── fu2
+ *     │   ├── fo1
+ *     │   └── fu1
+ *     └── work
+ *         └── work
+ */
+
+FIXTURE(layout2_overlay)
+{
+	bool skip_test;
+};
+
+FIXTURE_SETUP(layout2_overlay)
+{
+	if (!supports_filesystem("overlay")) {
+		self->skip_test = true;
+		SKIP(return, "overlayfs is not supported (setup)");
+	}
+
+	prepare_layout(_metadata);
+
+	create_directory(_metadata, LOWER_BASE);
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	/* Creates tmpfs mount points to get deterministic overlayfs. */
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, LOWER_BASE));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	create_file(_metadata, lower_fl1);
+	create_file(_metadata, lower_dl1_fl2);
+	create_file(_metadata, lower_fo1);
+	create_file(_metadata, lower_do1_fo2);
+	create_file(_metadata, lower_do1_fl3);
+
+	create_directory(_metadata, UPPER_BASE);
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, UPPER_BASE));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	create_file(_metadata, upper_fu1);
+	create_file(_metadata, upper_du1_fu2);
+	create_file(_metadata, upper_fo1);
+	create_file(_metadata, upper_do1_fo2);
+	create_file(_metadata, upper_do1_fu3);
+	ASSERT_EQ(0, mkdir(UPPER_WORK, 0700));
+
+	create_directory(_metadata, MERGE_DATA);
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	set_cap(_metadata, CAP_DAC_OVERRIDE);
+	ASSERT_EQ(0, mount("overlay", MERGE_DATA, "overlay", 0,
+			   "lowerdir=" LOWER_DATA ",upperdir=" UPPER_DATA
+			   ",workdir=" UPPER_WORK));
+	clear_cap(_metadata, CAP_DAC_OVERRIDE);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout2_overlay)
+{
+	if (self->skip_test)
+		SKIP(return, "overlayfs is not supported (teardown)");
+
+	EXPECT_EQ(0, remove_path(lower_do1_fl3));
+	EXPECT_EQ(0, remove_path(lower_dl1_fl2));
+	EXPECT_EQ(0, remove_path(lower_fl1));
+	EXPECT_EQ(0, remove_path(lower_do1_fo2));
+	EXPECT_EQ(0, remove_path(lower_fo1));
+
+	/* umount(LOWER_BASE)) is handled by namespace lifetime. */
+	EXPECT_EQ(0, remove_path(LOWER_BASE));
+
+	EXPECT_EQ(0, remove_path(upper_do1_fu3));
+	EXPECT_EQ(0, remove_path(upper_du1_fu2));
+	EXPECT_EQ(0, remove_path(upper_fu1));
+	EXPECT_EQ(0, remove_path(upper_do1_fo2));
+	EXPECT_EQ(0, remove_path(upper_fo1));
+	EXPECT_EQ(0, remove_path(UPPER_WORK "/work"));
+
+	/* umount(UPPER_BASE)) is handled by namespace lifetime. */
+	EXPECT_EQ(0, remove_path(UPPER_BASE));
+
+	/* umount(MERGE_DATA)) is handled by namespace lifetime. */
+	EXPECT_EQ(0, remove_path(MERGE_DATA));
+
+	cleanup_layout(_metadata);
+}
+
+TEST_F_FORK(layout2_overlay, no_restriction)
+{
+	if (self->skip_test)
+		SKIP(return, "overlayfs is not supported (test)");
+
+	ASSERT_EQ(0, test_open(lower_fl1, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_dl1, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_dl1_fl2, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_fo1, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_do1, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_do1_fo2, O_RDONLY));
+	ASSERT_EQ(0, test_open(lower_do1_fl3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(upper_fu1, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_du1, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_du1_fu2, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_fo1, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_do1, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_do1_fo2, O_RDONLY));
+	ASSERT_EQ(0, test_open(upper_do1_fu3, O_RDONLY));
+
+	ASSERT_EQ(0, test_open(merge_fl1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_dl1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_dl1_fl2, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_fu1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_du1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_du1_fu2, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_fo1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_do1, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_do1_fo2, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_do1_fl3, O_RDONLY));
+	ASSERT_EQ(0, test_open(merge_do1_fu3, O_RDONLY));
+}
+
+#define for_each_path(path_list, path_entry, i)               \
+	for (i = 0, path_entry = *path_list[i]; path_list[i]; \
+	     path_entry = *path_list[++i])
+
+TEST_F_FORK(layout2_overlay, same_content_different_file)
+{
+	/* Sets access right on parent directories of both layers. */
+	const struct rule layer1_base[] = {
+		{
+			.path = LOWER_BASE,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = UPPER_BASE,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = MERGE_BASE,
+			.access = ACCESS_RW,
+		},
+		{},
+	};
+	const struct rule layer2_data[] = {
+		{
+			.path = LOWER_DATA,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = UPPER_DATA,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = MERGE_DATA,
+			.access = ACCESS_RW,
+		},
+		{},
+	};
+	/* Sets access right on directories inside both layers. */
+	const struct rule layer3_subdirs[] = {
+		{
+			.path = lower_dl1,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = lower_do1,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = upper_du1,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = upper_do1,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = merge_dl1,
+			.access = ACCESS_RW,
+		},
+		{
+			.path = merge_du1,
+			.access = ACCESS_RW,
+		},
+		{
+			.path = merge_do1,
+			.access = ACCESS_RW,
+		},
+		{},
+	};
+	/* Tighten access rights to the files. */
+	const struct rule layer4_files[] = {
+		{
+			.path = lower_dl1_fl2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = lower_do1_fo2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = lower_do1_fl3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = upper_du1_fu2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = upper_do1_fo2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = upper_do1_fu3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{
+			.path = merge_dl1_fl2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = merge_du1_fu2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = merge_do1_fo2,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = merge_do1_fl3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{
+			.path = merge_do1_fu3,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	const struct rule layer5_merge_only[] = {
+		{
+			.path = MERGE_DATA,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE |
+				  LANDLOCK_ACCESS_FS_WRITE_FILE,
+		},
+		{},
+	};
+	int ruleset_fd;
+	size_t i;
+	const char *path_entry;
+
+	if (self->skip_test)
+		SKIP(return, "overlayfs is not supported (test)");
+
+	/* Sets rules on base directories (i.e. outside overlay scope). */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer1_base);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks lower layer. */
+	for_each_path(lower_base_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	for_each_path(lower_base_directories, path_entry, i) {
+		ASSERT_EQ(EACCES,
+			  test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(lower_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	/* Checks upper layer. */
+	for_each_path(upper_base_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	for_each_path(upper_base_directories, path_entry, i) {
+		ASSERT_EQ(EACCES,
+			  test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(upper_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	/*
+	 * Checks that access rights are independent from the lower and upper
+	 * layers: write access to upper files viewed through the merge point
+	 * is still allowed, and write access to lower file viewed (and copied)
+	 * through the merge point is still allowed.
+	 */
+	for_each_path(merge_base_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+	for_each_path(merge_base_directories, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(merge_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+
+	/* Sets rules on data directories (i.e. inside overlay scope). */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer2_data);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks merge. */
+	for_each_path(merge_base_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+	for_each_path(merge_base_directories, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(merge_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+
+	/* Same checks with tighter rules. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer3_subdirs);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks changes for lower layer. */
+	for_each_path(lower_base_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDONLY));
+	}
+	/* Checks changes for upper layer. */
+	for_each_path(upper_base_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDONLY));
+	}
+	/* Checks all merge accesses. */
+	for_each_path(merge_base_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDWR));
+	}
+	for_each_path(merge_base_directories, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(merge_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+
+	/* Sets rules directly on overlayed files. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer4_files);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks unchanged accesses on lower layer. */
+	for_each_path(lower_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	/* Checks unchanged accesses on upper layer. */
+	for_each_path(upper_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDONLY));
+		ASSERT_EQ(EACCES, test_open(path_entry, O_WRONLY));
+	}
+	/* Checks all merge accesses. */
+	for_each_path(merge_base_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDWR));
+	}
+	for_each_path(merge_base_directories, path_entry, i) {
+		ASSERT_EQ(EACCES,
+			  test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(merge_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+
+	/* Only allowes access to the merge hierarchy. */
+	ruleset_fd = create_ruleset(_metadata, ACCESS_RW, layer5_merge_only);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks new accesses on lower layer. */
+	for_each_path(lower_sub_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDONLY));
+	}
+	/* Checks new accesses on upper layer. */
+	for_each_path(upper_sub_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDONLY));
+	}
+	/* Checks all merge accesses. */
+	for_each_path(merge_base_files, path_entry, i) {
+		ASSERT_EQ(EACCES, test_open(path_entry, O_RDWR));
+	}
+	for_each_path(merge_base_directories, path_entry, i) {
+		ASSERT_EQ(EACCES,
+			  test_open(path_entry, O_RDONLY | O_DIRECTORY));
+	}
+	for_each_path(merge_sub_files, path_entry, i) {
+		ASSERT_EQ(0, test_open(path_entry, O_RDWR));
+	}
+}
+
+FIXTURE(layout3_fs)
+{
+	bool has_created_dir;
+	bool has_created_file;
+	bool skip_test;
+};
+
+FIXTURE_VARIANT(layout3_fs)
+{
+	const struct mnt_opt mnt;
+	const char *const file_path;
+	unsigned int cwd_fs_magic;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(layout3_fs, tmpfs) {
+	/* clang-format on */
+	.mnt = {
+		.type = "tmpfs",
+		.data = MNT_TMP_DATA,
+	},
+	.file_path = file1_s1d1,
+};
+
+FIXTURE_VARIANT_ADD(layout3_fs, ramfs) {
+	.mnt = {
+		.type = "ramfs",
+		.data = "mode=700",
+	},
+	.file_path = TMP_DIR "/dir/file",
+};
+
+FIXTURE_VARIANT_ADD(layout3_fs, cgroup2) {
+	.mnt = {
+		.type = "cgroup2",
+	},
+	.file_path = TMP_DIR "/test/cgroup.procs",
+};
+
+FIXTURE_VARIANT_ADD(layout3_fs, proc) {
+	.mnt = {
+		.type = "proc",
+	},
+	.file_path = TMP_DIR "/self/status",
+};
+
+FIXTURE_VARIANT_ADD(layout3_fs, sysfs) {
+	.mnt = {
+		.type = "sysfs",
+	},
+	.file_path = TMP_DIR "/kernel/notes",
+};
+
+FIXTURE_VARIANT_ADD(layout3_fs, hostfs) {
+	.mnt = {
+		.source = TMP_DIR,
+		.flags = MS_BIND,
+	},
+	.file_path = TMP_DIR "/dir/file",
+	.cwd_fs_magic = HOSTFS_SUPER_MAGIC,
+};
+
+static char *dirname_alloc(const char *path)
+{
+	char *dup;
+
+	if (!path)
+		return NULL;
+
+	dup = strdup(path);
+	if (!dup)
+		return NULL;
+
+	return dirname(dup);
+}
+
+FIXTURE_SETUP(layout3_fs)
+{
+	struct stat statbuf;
+	char *dir_path = dirname_alloc(variant->file_path);
+
+	if (!supports_filesystem(variant->mnt.type) ||
+	    !cwd_matches_fs(variant->cwd_fs_magic)) {
+		self->skip_test = true;
+		SKIP(return, "this filesystem is not supported (setup)");
+	}
+
+	prepare_layout_opt(_metadata, &variant->mnt);
+
+	/* Creates directory when required. */
+	if (stat(dir_path, &statbuf)) {
+		set_cap(_metadata, CAP_DAC_OVERRIDE);
+		EXPECT_EQ(0, mkdir(dir_path, 0700))
+		{
+			TH_LOG("Failed to create directory \"%s\": %s",
+			       dir_path, strerror(errno));
+		}
+		self->has_created_dir = true;
+		clear_cap(_metadata, CAP_DAC_OVERRIDE);
+	}
+
+	/* Creates file when required. */
+	if (stat(variant->file_path, &statbuf)) {
+		int fd;
+
+		set_cap(_metadata, CAP_DAC_OVERRIDE);
+		fd = creat(variant->file_path, 0600);
+		EXPECT_LE(0, fd)
+		{
+			TH_LOG("Failed to create file \"%s\": %s",
+			       variant->file_path, strerror(errno));
+		}
+		EXPECT_EQ(0, close(fd));
+		self->has_created_file = true;
+		clear_cap(_metadata, CAP_DAC_OVERRIDE);
+	}
+
+	free(dir_path);
+}
+
+FIXTURE_TEARDOWN_PARENT(layout3_fs)
+{
+	if (self->skip_test)
+		SKIP(return, "this filesystem is not supported (teardown)");
+
+	if (self->has_created_file) {
+		set_cap(_metadata, CAP_DAC_OVERRIDE);
+		/*
+		 * Don't check for error because the file might already
+		 * have been removed (cf. release_inode test).
+		 */
+		unlink(variant->file_path);
+		clear_cap(_metadata, CAP_DAC_OVERRIDE);
+	}
+
+	if (self->has_created_dir) {
+		char *dir_path = dirname_alloc(variant->file_path);
+
+		set_cap(_metadata, CAP_DAC_OVERRIDE);
+		/*
+		 * Don't check for error because the directory might already
+		 * have been removed (cf. release_inode test).
+		 */
+		rmdir(dir_path);
+		clear_cap(_metadata, CAP_DAC_OVERRIDE);
+		free(dir_path);
+	}
+
+	cleanup_layout(_metadata);
+}
+
+static void layer3_fs_tag_inode(struct __test_metadata *const _metadata,
+				FIXTURE_DATA(layout3_fs) * self,
+				const FIXTURE_VARIANT(layout3_fs) * variant,
+				const char *const rule_path)
+{
+	const struct rule layer1_allow_read_file[] = {
+		{
+			.path = rule_path,
+			.access = LANDLOCK_ACCESS_FS_READ_FILE,
+		},
+		{},
+	};
+	const struct landlock_ruleset_attr layer2_deny_everything_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_FILE,
+	};
+	const char *const dev_null_path = "/dev/null";
+	int ruleset_fd;
+
+	if (self->skip_test)
+		SKIP(return, "this filesystem is not supported (test)");
+
+	/* Checks without Landlock. */
+	EXPECT_EQ(0, test_open(dev_null_path, O_RDONLY | O_CLOEXEC));
+	EXPECT_EQ(0, test_open(variant->file_path, O_RDONLY | O_CLOEXEC));
+
+	ruleset_fd = create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_FILE,
+				    layer1_allow_read_file);
+	EXPECT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	EXPECT_EQ(EACCES, test_open(dev_null_path, O_RDONLY | O_CLOEXEC));
+	EXPECT_EQ(0, test_open(variant->file_path, O_RDONLY | O_CLOEXEC));
+
+	/* Forbids directory reading. */
+	ruleset_fd =
+		landlock_create_ruleset(&layer2_deny_everything_attr,
+					sizeof(layer2_deny_everything_attr), 0);
+	EXPECT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* Checks with Landlock and forbidden access. */
+	EXPECT_EQ(EACCES, test_open(dev_null_path, O_RDONLY | O_CLOEXEC));
+	EXPECT_EQ(EACCES, test_open(variant->file_path, O_RDONLY | O_CLOEXEC));
+}
+
+/* Matrix of tests to check file hierarchy evaluation. */
+
+TEST_F_FORK(layout3_fs, tag_inode_dir_parent)
+{
+	/* The current directory must not be the root for this test. */
+	layer3_fs_tag_inode(_metadata, self, variant, ".");
+}
+
+TEST_F_FORK(layout3_fs, tag_inode_dir_mnt)
+{
+	layer3_fs_tag_inode(_metadata, self, variant, TMP_DIR);
+}
+
+TEST_F_FORK(layout3_fs, tag_inode_dir_child)
+{
+	char *dir_path = dirname_alloc(variant->file_path);
+
+	layer3_fs_tag_inode(_metadata, self, variant, dir_path);
+	free(dir_path);
+}
+
+TEST_F_FORK(layout3_fs, tag_inode_file)
+{
+	layer3_fs_tag_inode(_metadata, self, variant, variant->file_path);
+}
+
+/* Light version of layout1.release_inodes */
+TEST_F_FORK(layout3_fs, release_inodes)
+{
+	const struct rule layer1[] = {
+		{
+			.path = TMP_DIR,
+			.access = LANDLOCK_ACCESS_FS_READ_DIR,
+		},
+		{},
+	};
+	int ruleset_fd;
+
+	if (self->skip_test)
+		SKIP(return, "this filesystem is not supported (test)");
+
+	/* Clean up for the teardown to not fail. */
+	if (self->has_created_file)
+		EXPECT_EQ(0, remove_path(variant->file_path));
+
+	if (self->has_created_dir) {
+		char *dir_path = dirname_alloc(variant->file_path);
+
+		/* Don't check for error because of cgroup specificities. */
+		remove_path(dir_path);
+		free(dir_path);
+	}
+
+	ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_READ_DIR, layer1);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Unmount the filesystem while it is being used by a ruleset. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, umount(TMP_DIR));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	/* Replaces with a new mount point to simplify FIXTURE_TEARDOWN. */
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, mount_opt(&mnt_tmp, TMP_DIR));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	/* Checks that access to the new mount point is denied. */
+	ASSERT_EQ(EACCES, test_open(TMP_DIR, O_RDONLY));
+}
+
+static int matches_log_fs_extra(struct __test_metadata *const _metadata,
+				int audit_fd, const char *const blockers,
+				const char *const path, const char *const extra)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" blockers=fs\\.%s path=\"%s\" dev=\"[^\"]\\+\" ino=[0-9]\\+$";
+	char *absolute_path = NULL;
+	size_t log_match_remaining = sizeof(log_template) + strlen(blockers) +
+				     PATH_MAX * 2 +
+				     (extra ? strlen(extra) : 0) + 1;
+	char log_match[log_match_remaining];
+	char *log_match_cursor = log_match;
+	size_t chunk_len;
+
+	chunk_len = snprintf(log_match_cursor, log_match_remaining,
+			     REGEX_LANDLOCK_PREFIX " blockers=%s path=\"",
+			     blockers);
+	if (chunk_len < 0 || chunk_len >= log_match_remaining)
+		return -E2BIG;
+
+	/*
+	 * It is assume that absolute_path does not contain control characters nor
+	 * spaces, see audit_string_contains_control().
+	 */
+	absolute_path = realpath(path, NULL);
+	if (!absolute_path)
+		return -errno;
+
+	log_match_remaining -= chunk_len;
+	log_match_cursor += chunk_len;
+	log_match_cursor = regex_escape(absolute_path, log_match_cursor,
+					log_match_remaining);
+	free(absolute_path);
+	if (log_match_cursor < 0)
+		return (long long)log_match_cursor;
+
+	log_match_remaining -= log_match_cursor - log_match;
+	chunk_len = snprintf(log_match_cursor, log_match_remaining,
+			     "\" dev=\"[^\"]\\+\" ino=[0-9]\\+%s$",
+			     extra ?: "");
+	if (chunk_len < 0 || chunk_len >= log_match_remaining)
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_ACCESS, log_match,
+				  NULL);
+}
+
+static int matches_log_fs(struct __test_metadata *const _metadata, int audit_fd,
+			  const char *const blockers, const char *const path)
+{
+	return matches_log_fs_extra(_metadata, audit_fd, blockers, path, NULL);
+}
+
+FIXTURE(audit_layout1)
+{
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_SETUP(audit_layout1)
+{
+	prepare_layout(_metadata);
+
+	create_layout1(_metadata);
+
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd);
+	disable_caps(_metadata);
+}
+
+FIXTURE_TEARDOWN_PARENT(audit_layout1)
+{
+	remove_layout1(_metadata);
+
+	cleanup_layout(_metadata);
+
+	EXPECT_EQ(0, audit_cleanup(-1, NULL));
+}
+
+TEST_F(audit_layout1, execute_make)
+{
+	struct audit_records records;
+
+	copy_file(_metadata, bin_true, file1_s1d1);
+	test_execute(_metadata, 0, file1_s1d1);
+	test_check_exec(_metadata, 0, file1_s1d1);
+
+	drop_access_rights(_metadata,
+			   &(struct landlock_ruleset_attr){
+				   .handled_access_fs =
+					   LANDLOCK_ACCESS_FS_EXECUTE,
+			   });
+
+	test_execute(_metadata, EACCES, file1_s1d1);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.execute",
+				    file1_s1d1));
+	test_check_exec(_metadata, EACCES, file1_s1d1);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.execute",
+				    file1_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+/*
+ * Using a set of handled/denied access rights make it possible to check that
+ * only the blocked ones are logged.
+ */
+
+/* clang-format off */
+static const __u64 access_fs_16 =
+	LANDLOCK_ACCESS_FS_EXECUTE |
+	LANDLOCK_ACCESS_FS_WRITE_FILE |
+	LANDLOCK_ACCESS_FS_READ_FILE |
+	LANDLOCK_ACCESS_FS_READ_DIR |
+	LANDLOCK_ACCESS_FS_REMOVE_DIR |
+	LANDLOCK_ACCESS_FS_REMOVE_FILE |
+	LANDLOCK_ACCESS_FS_MAKE_CHAR |
+	LANDLOCK_ACCESS_FS_MAKE_DIR |
+	LANDLOCK_ACCESS_FS_MAKE_REG |
+	LANDLOCK_ACCESS_FS_MAKE_SOCK |
+	LANDLOCK_ACCESS_FS_MAKE_FIFO |
+	LANDLOCK_ACCESS_FS_MAKE_BLOCK |
+	LANDLOCK_ACCESS_FS_MAKE_SYM |
+	LANDLOCK_ACCESS_FS_REFER |
+	LANDLOCK_ACCESS_FS_TRUNCATE |
+	LANDLOCK_ACCESS_FS_IOCTL_DEV;
+/* clang-format on */
+
+TEST_F(audit_layout1, execute_read)
+{
+	struct audit_records records;
+
+	copy_file(_metadata, bin_true, file1_s1d1);
+	test_execute(_metadata, 0, file1_s1d1);
+	test_check_exec(_metadata, 0, file1_s1d1);
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	/*
+	 * The only difference with the previous audit_layout1.execute_read test is
+	 * the extra ",fs\\.read_file" blocked by the executable file.
+	 */
+	test_execute(_metadata, EACCES, file1_s1d1);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.execute,fs\\.read_file", file1_s1d1));
+	test_check_exec(_metadata, EACCES, file1_s1d1);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.execute,fs\\.read_file", file1_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_F(audit_layout1, write_file)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(EACCES, test_open(file1_s1d1, O_WRONLY));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.write_file", file1_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, read_file)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(EACCES, test_open(file1_s1d1, O_RDONLY));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.read_file",
+				    file1_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, read_dir)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(EACCES, test_open(dir_s1d1, O_DIRECTORY));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.read_dir",
+				    dir_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, remove_dir)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+	EXPECT_EQ(0, unlink(file2_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, rmdir(dir_s1d3));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_dir", dir_s1d2));
+
+	EXPECT_EQ(-1, unlinkat(AT_FDCWD, dir_s1d3, AT_REMOVEDIR));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_dir", dir_s1d2));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_F(audit_layout1, remove_file)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, unlink(file1_s1d3));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_file", dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_char)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mknod(file1_s1d3, S_IFCHR | 0644, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_char",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_dir)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mkdir(file1_s1d3, 0755));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_dir",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_reg)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mknod(file1_s1d3, S_IFREG | 0644, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_reg",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_sock)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mknod(file1_s1d3, S_IFSOCK | 0644, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_sock",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_fifo)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mknod(file1_s1d3, S_IFIFO | 0644, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_fifo",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_block)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, mknod(file1_s1d3, S_IFBLK | 0644, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.make_block", dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, make_sym)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, symlink("target", file1_s1d3));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.make_sym",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, refer_handled)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs =
+						      LANDLOCK_ACCESS_FS_REFER,
+				      });
+
+	EXPECT_EQ(-1, link(file1_s1d1, file1_s1d3));
+	EXPECT_EQ(EXDEV, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.refer",
+				    dir_s1d1));
+	EXPECT_EQ(0,
+		  matches_log_domain_allocated(self->audit_fd, getpid(), NULL));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.refer",
+				    dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_F(audit_layout1, refer_make)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata,
+			   &(struct landlock_ruleset_attr){
+				   .handled_access_fs =
+					   LANDLOCK_ACCESS_FS_MAKE_REG |
+					   LANDLOCK_ACCESS_FS_REFER,
+			   });
+
+	EXPECT_EQ(-1, link(file1_s1d1, file1_s1d3));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.refer",
+				    dir_s1d1));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.make_reg,fs\\.refer", dir_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_F(audit_layout1, refer_rename)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(EACCES, test_rename(file1_s1d2, file1_s2d3));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_file,fs\\.refer", dir_s1d2));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_file,fs\\.make_reg,fs\\.refer",
+				    dir_s2d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_F(audit_layout1, refer_exchange)
+{
+	struct audit_records records;
+
+	EXPECT_EQ(0, unlink(file1_s1d3));
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	/*
+	 * The only difference with the previous audit_layout1.refer_rename test is
+	 * the extra ",fs\\.make_reg" blocked by the source directory.
+	 */
+	EXPECT_EQ(EACCES, test_exchange(file1_s1d2, file1_s2d3));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_file,fs\\.make_reg,fs\\.refer",
+				    dir_s1d2));
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.remove_file,fs\\.make_reg,fs\\.refer",
+				    dir_s2d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+/*
+ * This test checks that the audit record is correctly generated when the
+ * operation is only partially denied.  This is the case for rename(2) when the
+ * source file is allowed to be referenced but the destination directory is not.
+ *
+ * This is also a regression test for commit d617f0d72d80 ("landlock: Optimize
+ * file path walks and prepare for audit support") and commit 058518c20920
+ * ("landlock: Align partial refer access checks with final ones").
+ */
+TEST_F(audit_layout1, refer_rename_half)
+{
+	struct audit_records records;
+	const struct rule layer1[] = {
+		{
+			.path = dir_s2d2,
+			.access = LANDLOCK_ACCESS_FS_REFER,
+		},
+		{},
+	};
+	int ruleset_fd =
+		create_ruleset(_metadata, LANDLOCK_ACCESS_FS_REFER, layer1);
+
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	ASSERT_EQ(0, close(ruleset_fd));
+
+	ASSERT_EQ(-1, rename(dir_s1d2, dir_s2d3));
+	ASSERT_EQ(EXDEV, errno);
+
+	/* Only half of the request is denied. */
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.refer",
+				    dir_s1d1));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, truncate)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata, &(struct landlock_ruleset_attr){
+					      .handled_access_fs = access_fs_16,
+				      });
+
+	EXPECT_EQ(-1, truncate(file1_s1d3, 0));
+	EXPECT_EQ(EACCES, errno);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd, "fs\\.truncate",
+				    file1_s1d3));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, ioctl_dev)
+{
+	struct audit_records records;
+	int fd;
+
+	drop_access_rights(_metadata,
+			   &(struct landlock_ruleset_attr){
+				   .handled_access_fs =
+					   access_fs_16 &
+					   ~LANDLOCK_ACCESS_FS_READ_FILE,
+			   });
+
+	fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+	ASSERT_LE(0, fd);
+	EXPECT_EQ(EACCES, ioctl_error(_metadata, fd, FIONREAD));
+	EXPECT_EQ(0, matches_log_fs_extra(_metadata, self->audit_fd,
+					  "fs\\.ioctl_dev", "/dev/null",
+					  " ioctlcmd=0x541b"));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_F(audit_layout1, mount)
+{
+	struct audit_records records;
+
+	drop_access_rights(_metadata,
+			   &(struct landlock_ruleset_attr){
+				   .handled_access_fs =
+					   LANDLOCK_ACCESS_FS_EXECUTE,
+			   });
+
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(-1, mount(NULL, dir_s3d2, NULL, MS_RDONLY, NULL));
+	EXPECT_EQ(EPERM, errno);
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+	EXPECT_EQ(0, matches_log_fs(_metadata, self->audit_fd,
+				    "fs\\.change_topology", dir_s3d2));
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/net_test.c b/tools/testing/selftests/landlock/net_test.c
new file mode 100644
index 000000000000..2a45208551e6
--- /dev/null
+++ b/tools/testing/selftests/landlock/net_test.c
@@ -0,0 +1,2003 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Landlock tests - Network
+ *
+ * Copyright © 2022-2023 Huawei Tech. Co., Ltd.
+ * Copyright © 2023 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/landlock.h>
+#include <linux/in.h>
+#include <sched.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/syscall.h>
+#include <sys/un.h>
+
+#include "audit.h"
+#include "common.h"
+
+const short sock_port_start = (1 << 10);
+
+static const char loopback_ipv4[] = "127.0.0.1";
+static const char loopback_ipv6[] = "::1";
+
+/* Number pending connections queue to be hold. */
+const short backlog = 10;
+
+enum sandbox_type {
+	NO_SANDBOX,
+	/* This may be used to test rules that allow *and* deny accesses. */
+	TCP_SANDBOX,
+};
+
+static int set_service(struct service_fixture *const srv,
+		       const struct protocol_variant prot,
+		       const unsigned short index)
+{
+	memset(srv, 0, sizeof(*srv));
+
+	/*
+	 * Copies all protocol properties in case of the variant only contains
+	 * a subset of them.
+	 */
+	srv->protocol = prot;
+
+	/* Checks for port overflow. */
+	if (index > 2)
+		return 1;
+	srv->port = sock_port_start << (2 * index);
+
+	switch (prot.domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		srv->ipv4_addr.sin_family = prot.domain;
+		srv->ipv4_addr.sin_port = htons(srv->port);
+		srv->ipv4_addr.sin_addr.s_addr = inet_addr(loopback_ipv4);
+		return 0;
+
+	case AF_INET6:
+		srv->ipv6_addr.sin6_family = prot.domain;
+		srv->ipv6_addr.sin6_port = htons(srv->port);
+		inet_pton(AF_INET6, loopback_ipv6, &srv->ipv6_addr.sin6_addr);
+		return 0;
+
+	case AF_UNIX:
+		set_unix_address(srv, index);
+		return 0;
+	}
+	return 1;
+}
+
+static void setup_loopback(struct __test_metadata *const _metadata)
+{
+	set_cap(_metadata, CAP_SYS_ADMIN);
+	ASSERT_EQ(0, unshare(CLONE_NEWNET));
+	clear_cap(_metadata, CAP_SYS_ADMIN);
+
+	set_ambient_cap(_metadata, CAP_NET_ADMIN);
+	ASSERT_EQ(0, system("ip link set dev lo up"));
+	clear_ambient_cap(_metadata, CAP_NET_ADMIN);
+}
+
+static bool prot_is_tcp(const struct protocol_variant *const prot)
+{
+	return (prot->domain == AF_INET || prot->domain == AF_INET6) &&
+	       prot->type == SOCK_STREAM &&
+	       (prot->protocol == IPPROTO_TCP || prot->protocol == IPPROTO_IP);
+}
+
+static bool is_restricted(const struct protocol_variant *const prot,
+			  const enum sandbox_type sandbox)
+{
+	if (sandbox == TCP_SANDBOX)
+		return prot_is_tcp(prot);
+	return false;
+}
+
+static int socket_variant(const struct service_fixture *const srv)
+{
+	int ret;
+
+	ret = socket(srv->protocol.domain, srv->protocol.type | SOCK_CLOEXEC,
+		     srv->protocol.protocol);
+	if (ret < 0)
+		return -errno;
+	return ret;
+}
+
+#ifndef SIN6_LEN_RFC2133
+#define SIN6_LEN_RFC2133 24
+#endif
+
+static socklen_t get_addrlen(const struct service_fixture *const srv,
+			     const bool minimal)
+{
+	switch (srv->protocol.domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		return sizeof(srv->ipv4_addr);
+
+	case AF_INET6:
+		if (minimal)
+			return SIN6_LEN_RFC2133;
+		return sizeof(srv->ipv6_addr);
+
+	case AF_UNIX:
+		if (minimal)
+			return sizeof(srv->unix_addr) -
+			       sizeof(srv->unix_addr.sun_path);
+		return srv->unix_addr_len;
+
+	default:
+		return 0;
+	}
+}
+
+static void set_port(struct service_fixture *const srv, uint16_t port)
+{
+	switch (srv->protocol.domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		srv->ipv4_addr.sin_port = htons(port);
+		return;
+
+	case AF_INET6:
+		srv->ipv6_addr.sin6_port = htons(port);
+		return;
+
+	default:
+		return;
+	}
+}
+
+static uint16_t get_binded_port(int socket_fd,
+				const struct protocol_variant *const prot)
+{
+	struct sockaddr_in ipv4_addr;
+	struct sockaddr_in6 ipv6_addr;
+	socklen_t ipv4_addr_len, ipv6_addr_len;
+
+	/* Gets binded port. */
+	switch (prot->domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		ipv4_addr_len = sizeof(ipv4_addr);
+		getsockname(socket_fd, &ipv4_addr, &ipv4_addr_len);
+		return ntohs(ipv4_addr.sin_port);
+
+	case AF_INET6:
+		ipv6_addr_len = sizeof(ipv6_addr);
+		getsockname(socket_fd, &ipv6_addr, &ipv6_addr_len);
+		return ntohs(ipv6_addr.sin6_port);
+
+	default:
+		return 0;
+	}
+}
+
+static int bind_variant_addrlen(const int sock_fd,
+				const struct service_fixture *const srv,
+				const socklen_t addrlen)
+{
+	int ret;
+
+	switch (srv->protocol.domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		ret = bind(sock_fd, &srv->ipv4_addr, addrlen);
+		break;
+
+	case AF_INET6:
+		ret = bind(sock_fd, &srv->ipv6_addr, addrlen);
+		break;
+
+	case AF_UNIX:
+		ret = bind(sock_fd, &srv->unix_addr, addrlen);
+		break;
+
+	default:
+		errno = EAFNOSUPPORT;
+		return -errno;
+	}
+
+	if (ret < 0)
+		return -errno;
+	return ret;
+}
+
+static int bind_variant(const int sock_fd,
+			const struct service_fixture *const srv)
+{
+	return bind_variant_addrlen(sock_fd, srv, get_addrlen(srv, false));
+}
+
+static int connect_variant_addrlen(const int sock_fd,
+				   const struct service_fixture *const srv,
+				   const socklen_t addrlen)
+{
+	int ret;
+
+	switch (srv->protocol.domain) {
+	case AF_UNSPEC:
+	case AF_INET:
+		ret = connect(sock_fd, &srv->ipv4_addr, addrlen);
+		break;
+
+	case AF_INET6:
+		ret = connect(sock_fd, &srv->ipv6_addr, addrlen);
+		break;
+
+	case AF_UNIX:
+		ret = connect(sock_fd, &srv->unix_addr, addrlen);
+		break;
+
+	default:
+		errno = -EAFNOSUPPORT;
+		return -errno;
+	}
+
+	if (ret < 0)
+		return -errno;
+	return ret;
+}
+
+static int connect_variant(const int sock_fd,
+			   const struct service_fixture *const srv)
+{
+	return connect_variant_addrlen(sock_fd, srv, get_addrlen(srv, false));
+}
+
+FIXTURE(protocol)
+{
+	struct service_fixture srv0, srv1, srv2, unspec_any0, unspec_srv0;
+};
+
+FIXTURE_VARIANT(protocol)
+{
+	const enum sandbox_type sandbox;
+	const struct protocol_variant prot;
+};
+
+FIXTURE_SETUP(protocol)
+{
+	const struct protocol_variant prot_unspec = {
+		.domain = AF_UNSPEC,
+		.type = SOCK_STREAM,
+	};
+
+	disable_caps(_metadata);
+
+	ASSERT_EQ(0, set_service(&self->srv0, variant->prot, 0));
+	ASSERT_EQ(0, set_service(&self->srv1, variant->prot, 1));
+	ASSERT_EQ(0, set_service(&self->srv2, variant->prot, 2));
+
+	ASSERT_EQ(0, set_service(&self->unspec_srv0, prot_unspec, 0));
+
+	ASSERT_EQ(0, set_service(&self->unspec_any0, prot_unspec, 0));
+	self->unspec_any0.ipv4_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(protocol)
+{
+}
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv4_tcp1) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		/* IPPROTO_IP == 0 */
+		.protocol = IPPROTO_IP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv4_tcp2) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_TCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv4_mptcp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_MPTCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv6_tcp1) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		/* IPPROTO_IP == 0 */
+		.protocol = IPPROTO_IP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv6_tcp2) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_TCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv6_mptcp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_MPTCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv4_udp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_ipv6_udp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_DGRAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_unix_stream) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_UNIX,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, no_sandbox_with_unix_datagram) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_UNIX,
+		.type = SOCK_DGRAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv4_tcp1) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		/* IPPROTO_IP == 0 */
+		.protocol = IPPROTO_IP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv4_tcp2) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_TCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv4_mptcp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_MPTCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv6_tcp1) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		/* IPPROTO_IP == 0 */
+		.protocol = IPPROTO_IP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv6_tcp2) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_TCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv6_mptcp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+		.protocol = IPPROTO_MPTCP,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv4_udp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_DGRAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_ipv6_udp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_DGRAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_unix_stream) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_UNIX,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(protocol, tcp_sandbox_with_unix_datagram) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_UNIX,
+		.type = SOCK_DGRAM,
+	},
+};
+
+static void test_bind_and_connect(struct __test_metadata *const _metadata,
+				  const struct service_fixture *const srv,
+				  const bool deny_bind, const bool deny_connect)
+{
+	char buf = '\0';
+	int inval_fd, bind_fd, client_fd, status, ret;
+	pid_t child;
+
+	/* Starts invalid addrlen tests with bind. */
+	inval_fd = socket_variant(srv);
+	ASSERT_LE(0, inval_fd)
+	{
+		TH_LOG("Failed to create socket: %s", strerror(errno));
+	}
+
+	/* Tries to bind with zero as addrlen. */
+	EXPECT_EQ(-EINVAL, bind_variant_addrlen(inval_fd, srv, 0));
+
+	/* Tries to bind with too small addrlen. */
+	EXPECT_EQ(-EINVAL, bind_variant_addrlen(inval_fd, srv,
+						get_addrlen(srv, true) - 1));
+
+	/* Tries to bind with minimal addrlen. */
+	ret = bind_variant_addrlen(inval_fd, srv, get_addrlen(srv, true));
+	if (deny_bind) {
+		EXPECT_EQ(-EACCES, ret);
+	} else {
+		EXPECT_EQ(0, ret)
+		{
+			TH_LOG("Failed to bind to socket: %s", strerror(errno));
+		}
+	}
+	EXPECT_EQ(0, close(inval_fd));
+
+	/* Starts invalid addrlen tests with connect. */
+	inval_fd = socket_variant(srv);
+	ASSERT_LE(0, inval_fd);
+
+	/* Tries to connect with zero as addrlen. */
+	EXPECT_EQ(-EINVAL, connect_variant_addrlen(inval_fd, srv, 0));
+
+	/* Tries to connect with too small addrlen. */
+	EXPECT_EQ(-EINVAL, connect_variant_addrlen(inval_fd, srv,
+						   get_addrlen(srv, true) - 1));
+
+	/* Tries to connect with minimal addrlen. */
+	ret = connect_variant_addrlen(inval_fd, srv, get_addrlen(srv, true));
+	if (srv->protocol.domain == AF_UNIX) {
+		EXPECT_EQ(-EINVAL, ret);
+	} else if (deny_connect) {
+		EXPECT_EQ(-EACCES, ret);
+	} else if (srv->protocol.type == SOCK_STREAM) {
+		/* No listening server, whatever the value of deny_bind. */
+		EXPECT_EQ(-ECONNREFUSED, ret);
+	} else {
+		EXPECT_EQ(0, ret)
+		{
+			TH_LOG("Failed to connect to socket: %s",
+			       strerror(errno));
+		}
+	}
+	EXPECT_EQ(0, close(inval_fd));
+
+	/* Starts connection tests. */
+	bind_fd = socket_variant(srv);
+	ASSERT_LE(0, bind_fd);
+
+	ret = bind_variant(bind_fd, srv);
+	if (deny_bind) {
+		EXPECT_EQ(-EACCES, ret);
+	} else {
+		EXPECT_EQ(0, ret);
+
+		/* Creates a listening socket. */
+		if (srv->protocol.type == SOCK_STREAM)
+			EXPECT_EQ(0, listen(bind_fd, backlog));
+	}
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int connect_fd, ret;
+
+		/* Closes listening socket for the child. */
+		EXPECT_EQ(0, close(bind_fd));
+
+		/* Starts connection tests. */
+		connect_fd = socket_variant(srv);
+		ASSERT_LE(0, connect_fd);
+		ret = connect_variant(connect_fd, srv);
+		if (deny_connect) {
+			EXPECT_EQ(-EACCES, ret);
+		} else if (deny_bind) {
+			/* No listening server. */
+			EXPECT_EQ(-ECONNREFUSED, ret);
+		} else {
+			EXPECT_EQ(0, ret);
+			EXPECT_EQ(1, write(connect_fd, ".", 1));
+		}
+
+		EXPECT_EQ(0, close(connect_fd));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	/* Accepts connection from the child. */
+	client_fd = bind_fd;
+	if (!deny_bind && !deny_connect) {
+		if (srv->protocol.type == SOCK_STREAM) {
+			client_fd = accept(bind_fd, NULL, 0);
+			ASSERT_LE(0, client_fd);
+		}
+
+		EXPECT_EQ(1, read(client_fd, &buf, 1));
+		EXPECT_EQ('.', buf);
+	}
+
+	EXPECT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(1, WIFEXITED(status));
+	EXPECT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	/* Closes connection, if any. */
+	if (client_fd != bind_fd)
+		EXPECT_LE(0, close(client_fd));
+
+	/* Closes listening socket. */
+	EXPECT_EQ(0, close(bind_fd));
+}
+
+TEST_F(protocol, bind)
+{
+	if (variant->sandbox == TCP_SANDBOX) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		};
+		const struct landlock_net_port_attr tcp_bind_connect_p0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = self->srv0.port,
+		};
+		const struct landlock_net_port_attr tcp_connect_p1 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = self->srv1.port,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Allows connect and bind for the first port.  */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_p0, 0));
+
+		/* Allows connect and denies bind for the second port. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_connect_p1, 0));
+
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	/* Binds a socket to the first port. */
+	test_bind_and_connect(_metadata, &self->srv0, false, false);
+
+	/* Binds a socket to the second port. */
+	test_bind_and_connect(_metadata, &self->srv1,
+			      is_restricted(&variant->prot, variant->sandbox),
+			      false);
+
+	/* Binds a socket to the third port. */
+	test_bind_and_connect(_metadata, &self->srv2,
+			      is_restricted(&variant->prot, variant->sandbox),
+			      is_restricted(&variant->prot, variant->sandbox));
+}
+
+TEST_F(protocol, connect)
+{
+	if (variant->sandbox == TCP_SANDBOX) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		};
+		const struct landlock_net_port_attr tcp_bind_connect_p0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = self->srv0.port,
+		};
+		const struct landlock_net_port_attr tcp_bind_p1 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+			.port = self->srv1.port,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Allows connect and bind for the first port. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_p0, 0));
+
+		/* Allows bind and denies connect for the second port. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_p1, 0));
+
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	test_bind_and_connect(_metadata, &self->srv0, false, false);
+
+	test_bind_and_connect(_metadata, &self->srv1, false,
+			      is_restricted(&variant->prot, variant->sandbox));
+
+	test_bind_and_connect(_metadata, &self->srv2,
+			      is_restricted(&variant->prot, variant->sandbox),
+			      is_restricted(&variant->prot, variant->sandbox));
+}
+
+TEST_F(protocol, bind_unspec)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP,
+	};
+	const struct landlock_net_port_attr tcp_bind = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = self->srv0.port,
+	};
+	int bind_fd, ret;
+
+	if (variant->sandbox == TCP_SANDBOX) {
+		const int ruleset_fd = landlock_create_ruleset(
+			&ruleset_attr, sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Allows bind. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+
+	/* Allowed bind on AF_UNSPEC/INADDR_ANY. */
+	ret = bind_variant(bind_fd, &self->unspec_any0);
+	if (variant->prot.domain == AF_INET) {
+		EXPECT_EQ(0, ret)
+		{
+			TH_LOG("Failed to bind to unspec/any socket: %s",
+			       strerror(errno));
+		}
+	} else {
+		EXPECT_EQ(-EINVAL, ret);
+	}
+	EXPECT_EQ(0, close(bind_fd));
+
+	if (variant->sandbox == TCP_SANDBOX) {
+		const int ruleset_fd = landlock_create_ruleset(
+			&ruleset_attr, sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Denies bind. */
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+
+	/* Denied bind on AF_UNSPEC/INADDR_ANY. */
+	ret = bind_variant(bind_fd, &self->unspec_any0);
+	if (variant->prot.domain == AF_INET) {
+		if (is_restricted(&variant->prot, variant->sandbox)) {
+			EXPECT_EQ(-EACCES, ret);
+		} else {
+			EXPECT_EQ(0, ret);
+		}
+	} else {
+		EXPECT_EQ(-EINVAL, ret);
+	}
+	EXPECT_EQ(0, close(bind_fd));
+
+	/* Checks bind with AF_UNSPEC and the loopback address. */
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+	ret = bind_variant(bind_fd, &self->unspec_srv0);
+	if (variant->prot.domain == AF_INET) {
+		EXPECT_EQ(-EAFNOSUPPORT, ret);
+	} else {
+		EXPECT_EQ(-EINVAL, ret)
+		{
+			TH_LOG("Wrong bind error: %s", strerror(errno));
+		}
+	}
+	EXPECT_EQ(0, close(bind_fd));
+}
+
+TEST_F(protocol, connect_unspec)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	const struct landlock_net_port_attr tcp_connect = {
+		.allowed_access = LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		.port = self->srv0.port,
+	};
+	int bind_fd, client_fd, status;
+	pid_t child;
+
+	/* Specific connection tests. */
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+	EXPECT_EQ(0, bind_variant(bind_fd, &self->srv0));
+	if (self->srv0.protocol.type == SOCK_STREAM)
+		EXPECT_EQ(0, listen(bind_fd, backlog));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int connect_fd, ret;
+
+		/* Closes listening socket for the child. */
+		EXPECT_EQ(0, close(bind_fd));
+
+		connect_fd = socket_variant(&self->srv0);
+		ASSERT_LE(0, connect_fd);
+		EXPECT_EQ(0, connect_variant(connect_fd, &self->srv0));
+
+		/* Tries to connect again, or set peer. */
+		ret = connect_variant(connect_fd, &self->srv0);
+		if (self->srv0.protocol.type == SOCK_STREAM) {
+			EXPECT_EQ(-EISCONN, ret);
+		} else {
+			EXPECT_EQ(0, ret);
+		}
+
+		if (variant->sandbox == TCP_SANDBOX) {
+			const int ruleset_fd = landlock_create_ruleset(
+				&ruleset_attr, sizeof(ruleset_attr), 0);
+			ASSERT_LE(0, ruleset_fd);
+
+			/* Allows connect. */
+			ASSERT_EQ(0, landlock_add_rule(ruleset_fd,
+						       LANDLOCK_RULE_NET_PORT,
+						       &tcp_connect, 0));
+			enforce_ruleset(_metadata, ruleset_fd);
+			EXPECT_EQ(0, close(ruleset_fd));
+		}
+
+		/* Disconnects already connected socket, or set peer. */
+		ret = connect_variant(connect_fd, &self->unspec_any0);
+		if (self->srv0.protocol.domain == AF_UNIX &&
+		    self->srv0.protocol.type == SOCK_STREAM) {
+			EXPECT_EQ(-EINVAL, ret);
+		} else {
+			EXPECT_EQ(0, ret);
+		}
+
+		/* Tries to reconnect, or set peer. */
+		ret = connect_variant(connect_fd, &self->srv0);
+		if (self->srv0.protocol.domain == AF_UNIX &&
+		    self->srv0.protocol.type == SOCK_STREAM) {
+			EXPECT_EQ(-EISCONN, ret);
+		} else {
+			EXPECT_EQ(0, ret);
+		}
+
+		if (variant->sandbox == TCP_SANDBOX) {
+			const int ruleset_fd = landlock_create_ruleset(
+				&ruleset_attr, sizeof(ruleset_attr), 0);
+			ASSERT_LE(0, ruleset_fd);
+
+			/* Denies connect. */
+			enforce_ruleset(_metadata, ruleset_fd);
+			EXPECT_EQ(0, close(ruleset_fd));
+		}
+
+		ret = connect_variant(connect_fd, &self->unspec_any0);
+		if (self->srv0.protocol.domain == AF_UNIX &&
+		    self->srv0.protocol.type == SOCK_STREAM) {
+			EXPECT_EQ(-EINVAL, ret);
+		} else {
+			/* Always allowed to disconnect. */
+			EXPECT_EQ(0, ret);
+		}
+
+		EXPECT_EQ(0, close(connect_fd));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	client_fd = bind_fd;
+	if (self->srv0.protocol.type == SOCK_STREAM) {
+		client_fd = accept(bind_fd, NULL, 0);
+		ASSERT_LE(0, client_fd);
+	}
+
+	EXPECT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(1, WIFEXITED(status));
+	EXPECT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
+
+	/* Closes connection, if any. */
+	if (client_fd != bind_fd)
+		EXPECT_LE(0, close(client_fd));
+
+	/* Closes listening socket. */
+	EXPECT_EQ(0, close(bind_fd));
+}
+
+FIXTURE(ipv4)
+{
+	struct service_fixture srv0, srv1;
+};
+
+FIXTURE_VARIANT(ipv4)
+{
+	const enum sandbox_type sandbox;
+	const int type;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ipv4, no_sandbox_with_tcp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.type = SOCK_STREAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ipv4, tcp_sandbox_with_tcp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.type = SOCK_STREAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ipv4, no_sandbox_with_udp) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.type = SOCK_DGRAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(ipv4, tcp_sandbox_with_udp) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.type = SOCK_DGRAM,
+};
+
+FIXTURE_SETUP(ipv4)
+{
+	const struct protocol_variant prot = {
+		.domain = AF_INET,
+		.type = variant->type,
+	};
+
+	disable_caps(_metadata);
+
+	set_service(&self->srv0, prot, 0);
+	set_service(&self->srv1, prot, 1);
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(ipv4)
+{
+}
+
+TEST_F(ipv4, from_unix_to_inet)
+{
+	int unix_stream_fd, unix_dgram_fd;
+
+	if (variant->sandbox == TCP_SANDBOX) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		};
+		const struct landlock_net_port_attr tcp_bind_connect_p0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = self->srv0.port,
+		};
+		int ruleset_fd;
+
+		/* Denies connect and bind to check errno value. */
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Allows connect and bind for srv0.  */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_p0, 0));
+
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	unix_stream_fd = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	ASSERT_LE(0, unix_stream_fd);
+
+	unix_dgram_fd = socket(AF_UNIX, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+	ASSERT_LE(0, unix_dgram_fd);
+
+	/* Checks unix stream bind and connect for srv0. */
+	EXPECT_EQ(-EINVAL, bind_variant(unix_stream_fd, &self->srv0));
+	EXPECT_EQ(-EINVAL, connect_variant(unix_stream_fd, &self->srv0));
+
+	/* Checks unix stream bind and connect for srv1. */
+	EXPECT_EQ(-EINVAL, bind_variant(unix_stream_fd, &self->srv1))
+	{
+		TH_LOG("Wrong bind error: %s", strerror(errno));
+	}
+	EXPECT_EQ(-EINVAL, connect_variant(unix_stream_fd, &self->srv1));
+
+	/* Checks unix datagram bind and connect for srv0. */
+	EXPECT_EQ(-EINVAL, bind_variant(unix_dgram_fd, &self->srv0));
+	EXPECT_EQ(-EINVAL, connect_variant(unix_dgram_fd, &self->srv0));
+
+	/* Checks unix datagram bind and connect for srv1. */
+	EXPECT_EQ(-EINVAL, bind_variant(unix_dgram_fd, &self->srv1));
+	EXPECT_EQ(-EINVAL, connect_variant(unix_dgram_fd, &self->srv1));
+}
+
+FIXTURE(tcp_layers)
+{
+	struct service_fixture srv0, srv1;
+};
+
+FIXTURE_VARIANT(tcp_layers)
+{
+	const size_t num_layers;
+	const int domain;
+};
+
+FIXTURE_SETUP(tcp_layers)
+{
+	const struct protocol_variant prot = {
+		.domain = variant->domain,
+		.type = SOCK_STREAM,
+	};
+
+	disable_caps(_metadata);
+
+	ASSERT_EQ(0, set_service(&self->srv0, prot, 0));
+	ASSERT_EQ(0, set_service(&self->srv1, prot, 1));
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(tcp_layers)
+{
+}
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, no_sandbox_with_ipv4) {
+	/* clang-format on */
+	.domain = AF_INET,
+	.num_layers = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, one_sandbox_with_ipv4) {
+	/* clang-format on */
+	.domain = AF_INET,
+	.num_layers = 1,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, two_sandboxes_with_ipv4) {
+	/* clang-format on */
+	.domain = AF_INET,
+	.num_layers = 2,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, three_sandboxes_with_ipv4) {
+	/* clang-format on */
+	.domain = AF_INET,
+	.num_layers = 3,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, no_sandbox_with_ipv6) {
+	/* clang-format on */
+	.domain = AF_INET6,
+	.num_layers = 0,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, one_sandbox_with_ipv6) {
+	/* clang-format on */
+	.domain = AF_INET6,
+	.num_layers = 1,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, two_sandboxes_with_ipv6) {
+	/* clang-format on */
+	.domain = AF_INET6,
+	.num_layers = 2,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(tcp_layers, three_sandboxes_with_ipv6) {
+	/* clang-format on */
+	.domain = AF_INET6,
+	.num_layers = 3,
+};
+
+TEST_F(tcp_layers, ruleset_overlap)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	const struct landlock_net_port_attr tcp_bind = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = self->srv0.port,
+	};
+	const struct landlock_net_port_attr tcp_bind_connect = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+				  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		.port = self->srv0.port,
+	};
+
+	if (variant->num_layers >= 1) {
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Allows bind. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind, 0));
+		/* Also allows bind, but allows connect too. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	if (variant->num_layers >= 2) {
+		int ruleset_fd;
+
+		/* Creates another ruleset layer. */
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Only allows bind. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	if (variant->num_layers >= 3) {
+		int ruleset_fd;
+
+		/* Creates another ruleset layer. */
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Try to allow bind and connect. */
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	/*
+	 * Forbids to connect to the socket because only one ruleset layer
+	 * allows connect.
+	 */
+	test_bind_and_connect(_metadata, &self->srv0, false,
+			      variant->num_layers >= 2);
+}
+
+TEST_F(tcp_layers, ruleset_expand)
+{
+	if (variant->num_layers >= 1) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP,
+		};
+		/* Allows bind for srv0. */
+		const struct landlock_net_port_attr bind_srv0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+			.port = self->srv0.port,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &bind_srv0, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	if (variant->num_layers >= 2) {
+		/* Expands network mask with connect action. */
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		};
+		/* Allows bind for srv0 and connect to srv0. */
+		const struct landlock_net_port_attr tcp_bind_connect_p0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = self->srv0.port,
+		};
+		/* Try to allow bind for srv1. */
+		const struct landlock_net_port_attr tcp_bind_p1 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+			.port = self->srv1.port,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_p0, 0));
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_p1, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	if (variant->num_layers >= 3) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		};
+		/* Allows connect to srv0, without bind rule. */
+		const struct landlock_net_port_attr tcp_bind_p0 = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+			.port = self->srv0.port,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_p0, 0));
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	test_bind_and_connect(_metadata, &self->srv0, false,
+			      variant->num_layers >= 3);
+
+	test_bind_and_connect(_metadata, &self->srv1, variant->num_layers >= 1,
+			      variant->num_layers >= 2);
+}
+
+/* clang-format off */
+FIXTURE(mini) {};
+/* clang-format on */
+
+FIXTURE_SETUP(mini)
+{
+	disable_caps(_metadata);
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(mini)
+{
+}
+
+/* clang-format off */
+
+#define ACCESS_LAST LANDLOCK_ACCESS_NET_CONNECT_TCP
+
+#define ACCESS_ALL ( \
+	LANDLOCK_ACCESS_NET_BIND_TCP | \
+	LANDLOCK_ACCESS_NET_CONNECT_TCP)
+
+/* clang-format on */
+
+TEST_F(mini, network_access_rights)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = ACCESS_ALL,
+	};
+	struct landlock_net_port_attr net_port = {
+		.port = sock_port_start,
+	};
+	int ruleset_fd;
+	__u64 access;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	for (access = 1; access <= ACCESS_LAST; access <<= 1) {
+		net_port.allowed_access = access;
+		EXPECT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &net_port, 0))
+		{
+			TH_LOG("Failed to add rule with access 0x%llx: %s",
+			       access, strerror(errno));
+		}
+	}
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+/* Checks invalid attribute, out of landlock network access range. */
+TEST_F(mini, ruleset_with_unknown_access)
+{
+	__u64 access_mask;
+
+	for (access_mask = 1ULL << 63; access_mask != ACCESS_LAST;
+	     access_mask >>= 1) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = access_mask,
+		};
+
+		EXPECT_EQ(-1, landlock_create_ruleset(&ruleset_attr,
+						      sizeof(ruleset_attr), 0));
+		EXPECT_EQ(EINVAL, errno);
+	}
+}
+
+TEST_F(mini, rule_with_unknown_access)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = ACCESS_ALL,
+	};
+	struct landlock_net_port_attr net_port = {
+		.port = sock_port_start,
+	};
+	int ruleset_fd;
+	__u64 access;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	for (access = 1ULL << 63; access != ACCESS_LAST; access >>= 1) {
+		net_port.allowed_access = access;
+		EXPECT_EQ(-1,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &net_port, 0));
+		EXPECT_EQ(EINVAL, errno);
+	}
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F(mini, rule_with_unhandled_access)
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP,
+	};
+	struct landlock_net_port_attr net_port = {
+		.port = sock_port_start,
+	};
+	int ruleset_fd;
+	__u64 access;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	for (access = 1; access > 0; access <<= 1) {
+		int err;
+
+		net_port.allowed_access = access;
+		err = landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&net_port, 0);
+		if (access == ruleset_attr.handled_access_net) {
+			EXPECT_EQ(0, err);
+		} else {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EINVAL, errno);
+		}
+	}
+
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+TEST_F(mini, inval)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP
+	};
+	const struct landlock_net_port_attr tcp_bind_connect = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+				  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		.port = sock_port_start,
+	};
+	const struct landlock_net_port_attr tcp_denied = {
+		.allowed_access = 0,
+		.port = sock_port_start,
+	};
+	const struct landlock_net_port_attr tcp_bind = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = sock_port_start,
+	};
+	int ruleset_fd;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Checks unhandled allowed_access. */
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&tcp_bind_connect, 0));
+	EXPECT_EQ(EINVAL, errno);
+
+	/* Checks zero access value. */
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&tcp_denied, 0));
+	EXPECT_EQ(ENOMSG, errno);
+
+	/* Adds with legitimate values. */
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &tcp_bind, 0));
+}
+
+TEST_F(mini, tcp_port_overflow)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	const struct landlock_net_port_attr port_max_bind = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = UINT16_MAX,
+	};
+	const struct landlock_net_port_attr port_max_connect = {
+		.allowed_access = LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		.port = UINT16_MAX,
+	};
+	const struct landlock_net_port_attr port_overflow1 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = UINT16_MAX + 1,
+	};
+	const struct landlock_net_port_attr port_overflow2 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = UINT16_MAX + 2,
+	};
+	const struct landlock_net_port_attr port_overflow3 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = UINT32_MAX + 1UL,
+	};
+	const struct landlock_net_port_attr port_overflow4 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = UINT32_MAX + 2UL,
+	};
+	const struct protocol_variant ipv4_tcp = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	};
+	struct service_fixture srv_denied, srv_max_allowed;
+	int ruleset_fd;
+
+	ASSERT_EQ(0, set_service(&srv_denied, ipv4_tcp, 0));
+
+	/* Be careful to avoid port inconsistencies. */
+	srv_max_allowed = srv_denied;
+	srv_max_allowed.port = port_max_bind.port;
+	srv_max_allowed.ipv4_addr.sin_port = htons(port_max_bind.port);
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &port_max_bind, 0));
+
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&port_overflow1, 0));
+	EXPECT_EQ(EINVAL, errno);
+
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&port_overflow2, 0));
+	EXPECT_EQ(EINVAL, errno);
+
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&port_overflow3, 0));
+	EXPECT_EQ(EINVAL, errno);
+
+	/* Interleaves with invalid rule additions. */
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &port_max_connect, 0));
+
+	EXPECT_EQ(-1, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					&port_overflow4, 0));
+	EXPECT_EQ(EINVAL, errno);
+
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	test_bind_and_connect(_metadata, &srv_denied, true, true);
+	test_bind_and_connect(_metadata, &srv_max_allowed, false, false);
+}
+
+FIXTURE(ipv4_tcp)
+{
+	struct service_fixture srv0, srv1;
+};
+
+FIXTURE_SETUP(ipv4_tcp)
+{
+	const struct protocol_variant ipv4_tcp = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	};
+
+	disable_caps(_metadata);
+
+	ASSERT_EQ(0, set_service(&self->srv0, ipv4_tcp, 0));
+	ASSERT_EQ(0, set_service(&self->srv1, ipv4_tcp, 1));
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(ipv4_tcp)
+{
+}
+
+TEST_F(ipv4_tcp, port_endianness)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	const struct landlock_net_port_attr bind_host_endian_p0 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		/* Host port format. */
+		.port = self->srv0.port,
+	};
+	const struct landlock_net_port_attr connect_big_endian_p0 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		/* Big endian port format. */
+		.port = htons(self->srv0.port),
+	};
+	const struct landlock_net_port_attr bind_connect_host_endian_p1 = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+				  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+		/* Host port format. */
+		.port = self->srv1.port,
+	};
+	const unsigned int one = 1;
+	const char little_endian = *(const char *)&one;
+	int ruleset_fd;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &bind_host_endian_p0, 0));
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &connect_big_endian_p0, 0));
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &bind_connect_host_endian_p1, 0));
+	enforce_ruleset(_metadata, ruleset_fd);
+
+	/* No restriction for big endinan CPU. */
+	test_bind_and_connect(_metadata, &self->srv0, false, little_endian);
+
+	/* No restriction for any CPU. */
+	test_bind_and_connect(_metadata, &self->srv1, false, false);
+}
+
+TEST_F(ipv4_tcp, with_fs)
+{
+	const struct landlock_ruleset_attr ruleset_attr_fs_net = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR,
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP,
+	};
+	struct landlock_path_beneath_attr path_beneath = {
+		.allowed_access = LANDLOCK_ACCESS_FS_READ_DIR,
+		.parent_fd = -1,
+	};
+	struct landlock_net_port_attr tcp_bind = {
+		.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP,
+		.port = self->srv0.port,
+	};
+	int ruleset_fd, bind_fd, dir_fd;
+
+	/* Creates ruleset both for filesystem and network access. */
+	ruleset_fd = landlock_create_ruleset(&ruleset_attr_fs_net,
+					     sizeof(ruleset_attr_fs_net), 0);
+	ASSERT_LE(0, ruleset_fd);
+
+	/* Adds a filesystem rule. */
+	path_beneath.parent_fd = open("/dev", O_PATH | O_DIRECTORY | O_CLOEXEC);
+	ASSERT_LE(0, path_beneath.parent_fd);
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_PATH_BENEATH,
+				       &path_beneath, 0));
+	EXPECT_EQ(0, close(path_beneath.parent_fd));
+
+	/* Adds a network rule. */
+	ASSERT_EQ(0, landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+				       &tcp_bind, 0));
+
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	/* Tests file access. */
+	dir_fd = open("/dev", O_RDONLY);
+	EXPECT_LE(0, dir_fd);
+	EXPECT_EQ(0, close(dir_fd));
+
+	dir_fd = open("/", O_RDONLY);
+	EXPECT_EQ(-1, dir_fd);
+	EXPECT_EQ(EACCES, errno);
+
+	/* Tests port binding. */
+	bind_fd = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	ASSERT_LE(0, bind_fd);
+	EXPECT_EQ(0, bind_variant(bind_fd, &self->srv0));
+	EXPECT_EQ(0, close(bind_fd));
+
+	bind_fd = socket(AF_INET, SOCK_STREAM | SOCK_CLOEXEC, 0);
+	ASSERT_LE(0, bind_fd);
+	EXPECT_EQ(-EACCES, bind_variant(bind_fd, &self->srv1));
+}
+
+FIXTURE(port_specific)
+{
+	struct service_fixture srv0;
+};
+
+FIXTURE_VARIANT(port_specific)
+{
+	const enum sandbox_type sandbox;
+	const struct protocol_variant prot;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(port_specific, no_sandbox_with_ipv4) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(port_specific, sandbox_with_ipv4) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(port_specific, no_sandbox_with_ipv6) {
+	/* clang-format on */
+	.sandbox = NO_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(port_specific, sandbox_with_ipv6) {
+	/* clang-format on */
+	.sandbox = TCP_SANDBOX,
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+	},
+};
+
+FIXTURE_SETUP(port_specific)
+{
+	disable_caps(_metadata);
+
+	ASSERT_EQ(0, set_service(&self->srv0, variant->prot, 0));
+
+	setup_loopback(_metadata);
+};
+
+FIXTURE_TEARDOWN(port_specific)
+{
+}
+
+TEST_F(port_specific, bind_connect_zero)
+{
+	int bind_fd, connect_fd, ret;
+	uint16_t port;
+
+	/* Adds a rule layer with bind and connect actions. */
+	if (variant->sandbox == TCP_SANDBOX) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP
+		};
+		const struct landlock_net_port_attr tcp_bind_connect_zero = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = 0,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		/* Checks zero port value on bind and connect actions. */
+		EXPECT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_zero, 0));
+
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+
+	connect_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, connect_fd);
+
+	/* Sets address port to 0 for both protocol families. */
+	set_port(&self->srv0, 0);
+	/*
+	 * Binds on port 0, which selects a random port within
+	 * ip_local_port_range.
+	 */
+	ret = bind_variant(bind_fd, &self->srv0);
+	EXPECT_EQ(0, ret);
+
+	EXPECT_EQ(0, listen(bind_fd, backlog));
+
+	/* Connects on port 0. */
+	ret = connect_variant(connect_fd, &self->srv0);
+	EXPECT_EQ(-ECONNREFUSED, ret);
+
+	/* Sets binded port for both protocol families. */
+	port = get_binded_port(bind_fd, &variant->prot);
+	EXPECT_NE(0, port);
+	set_port(&self->srv0, port);
+	/* Connects on the binded port. */
+	ret = connect_variant(connect_fd, &self->srv0);
+	if (is_restricted(&variant->prot, variant->sandbox)) {
+		/* Denied by Landlock. */
+		EXPECT_EQ(-EACCES, ret);
+	} else {
+		EXPECT_EQ(0, ret);
+	}
+
+	EXPECT_EQ(0, close(connect_fd));
+	EXPECT_EQ(0, close(bind_fd));
+}
+
+TEST_F(port_specific, bind_connect_1023)
+{
+	int bind_fd, connect_fd, ret;
+
+	/* Adds a rule layer with bind and connect actions. */
+	if (variant->sandbox == TCP_SANDBOX) {
+		const struct landlock_ruleset_attr ruleset_attr = {
+			.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+					      LANDLOCK_ACCESS_NET_CONNECT_TCP
+		};
+		/* A rule with port value less than 1024. */
+		const struct landlock_net_port_attr tcp_bind_connect_low_range = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = 1023,
+		};
+		/* A rule with 1024 port. */
+		const struct landlock_net_port_attr tcp_bind_connect = {
+			.allowed_access = LANDLOCK_ACCESS_NET_BIND_TCP |
+					  LANDLOCK_ACCESS_NET_CONNECT_TCP,
+			.port = 1024,
+		};
+		int ruleset_fd;
+
+		ruleset_fd = landlock_create_ruleset(&ruleset_attr,
+						     sizeof(ruleset_attr), 0);
+		ASSERT_LE(0, ruleset_fd);
+
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect_low_range, 0));
+		ASSERT_EQ(0,
+			  landlock_add_rule(ruleset_fd, LANDLOCK_RULE_NET_PORT,
+					    &tcp_bind_connect, 0));
+
+		enforce_ruleset(_metadata, ruleset_fd);
+		EXPECT_EQ(0, close(ruleset_fd));
+	}
+
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+
+	connect_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, connect_fd);
+
+	/* Sets address port to 1023 for both protocol families. */
+	set_port(&self->srv0, 1023);
+	/* Binds on port 1023. */
+	ret = bind_variant(bind_fd, &self->srv0);
+	/* Denied by the system. */
+	EXPECT_EQ(-EACCES, ret);
+
+	/* Binds on port 1023. */
+	set_cap(_metadata, CAP_NET_BIND_SERVICE);
+	ret = bind_variant(bind_fd, &self->srv0);
+	clear_cap(_metadata, CAP_NET_BIND_SERVICE);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, listen(bind_fd, backlog));
+
+	/* Connects on the binded port 1023. */
+	ret = connect_variant(connect_fd, &self->srv0);
+	EXPECT_EQ(0, ret);
+
+	EXPECT_EQ(0, close(connect_fd));
+	EXPECT_EQ(0, close(bind_fd));
+
+	bind_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, bind_fd);
+
+	connect_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, connect_fd);
+
+	/* Sets address port to 1024 for both protocol families. */
+	set_port(&self->srv0, 1024);
+	/* Binds on port 1024. */
+	ret = bind_variant(bind_fd, &self->srv0);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(0, listen(bind_fd, backlog));
+
+	/* Connects on the binded port 1024. */
+	ret = connect_variant(connect_fd, &self->srv0);
+	EXPECT_EQ(0, ret);
+
+	EXPECT_EQ(0, close(connect_fd));
+	EXPECT_EQ(0, close(bind_fd));
+}
+
+static int matches_log_tcp(const int audit_fd, const char *const blockers,
+			   const char *const dir_addr, const char *const addr,
+			   const char *const dir_port)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" blockers=%s %s=%s %s=1024$";
+	/*
+	 * Max strlen(blockers): 16
+	 * Max strlen(dir_addr): 5
+	 * Max strlen(addr): 12
+	 * Max strlen(dir_port): 4
+	 */
+	char log_match[sizeof(log_template) + 37];
+	int log_match_len;
+
+	log_match_len = snprintf(log_match, sizeof(log_match), log_template,
+				 blockers, dir_addr, addr, dir_port);
+	if (log_match_len > sizeof(log_match))
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_ACCESS, log_match,
+				  NULL);
+}
+
+FIXTURE(audit)
+{
+	struct service_fixture srv0;
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_VARIANT(audit)
+{
+	const char *const addr;
+	const struct protocol_variant prot;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit, ipv4) {
+	/* clang-format on */
+	.addr = "127\\.0\\.0\\.1",
+	.prot = {
+		.domain = AF_INET,
+		.type = SOCK_STREAM,
+	},
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(audit, ipv6) {
+	/* clang-format on */
+	.addr = "::1",
+	.prot = {
+		.domain = AF_INET6,
+		.type = SOCK_STREAM,
+	},
+};
+
+FIXTURE_SETUP(audit)
+{
+	ASSERT_EQ(0, set_service(&self->srv0, variant->prot, 0));
+	setup_loopback(_metadata);
+
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd);
+	disable_caps(_metadata);
+};
+
+FIXTURE_TEARDOWN(audit)
+{
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	EXPECT_EQ(0, audit_cleanup(self->audit_fd, &self->audit_filter));
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+TEST_F(audit, bind)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	struct audit_records records;
+	int ruleset_fd, sock_fd;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	sock_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, sock_fd);
+	EXPECT_EQ(-EACCES, bind_variant(sock_fd, &self->srv0));
+	EXPECT_EQ(0, matches_log_tcp(self->audit_fd, "net\\.bind_tcp", "saddr",
+				     variant->addr, "src"));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+
+	EXPECT_EQ(0, close(sock_fd));
+}
+
+TEST_F(audit, connect)
+{
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_net = LANDLOCK_ACCESS_NET_BIND_TCP |
+				      LANDLOCK_ACCESS_NET_CONNECT_TCP,
+	};
+	struct audit_records records;
+	int ruleset_fd, sock_fd;
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd);
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+
+	sock_fd = socket_variant(&self->srv0);
+	ASSERT_LE(0, sock_fd);
+	EXPECT_EQ(-EACCES, connect_variant(sock_fd, &self->srv0));
+	EXPECT_EQ(0, matches_log_tcp(self->audit_fd, "net\\.connect_tcp",
+				     "daddr", variant->addr, "dest"));
+
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(1, records.domain);
+
+	EXPECT_EQ(0, close(sock_fd));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/ptrace_test.c b/tools/testing/selftests/landlock/ptrace_test.c
new file mode 100644
index 000000000000..4e356334ecb7
--- /dev/null
+++ b/tools/testing/selftests/landlock/ptrace_test.c
@@ -0,0 +1,577 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Ptrace
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2019-2020 ANSSI
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/landlock.h>
+#include <signal.h>
+#include <sys/prctl.h>
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "audit.h"
+#include "common.h"
+
+/* Copied from security/yama/yama_lsm.c */
+#define YAMA_SCOPE_DISABLED 0
+#define YAMA_SCOPE_RELATIONAL 1
+
+static void create_domain(struct __test_metadata *const _metadata)
+{
+	int ruleset_fd;
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_MAKE_BLOCK,
+	};
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	EXPECT_LE(0, ruleset_fd)
+	{
+		TH_LOG("Failed to create a ruleset: %s", strerror(errno));
+	}
+	EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	EXPECT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+static int test_ptrace_read(const pid_t pid)
+{
+	static const char path_template[] = "/proc/%d/environ";
+	char procenv_path[sizeof(path_template) + 10];
+	int procenv_path_size, fd;
+
+	procenv_path_size = snprintf(procenv_path, sizeof(procenv_path),
+				     path_template, pid);
+	if (procenv_path_size >= sizeof(procenv_path))
+		return E2BIG;
+
+	fd = open(procenv_path, O_RDONLY | O_CLOEXEC);
+	if (fd < 0)
+		return errno;
+	/*
+	 * Mixing error codes from close(2) and open(2) should not lead to any
+	 * (access type) confusion for this test.
+	 */
+	if (close(fd) != 0)
+		return errno;
+	return 0;
+}
+
+static int get_yama_ptrace_scope(void)
+{
+	int ret;
+	char buf[2] = {};
+	const int fd = open("/proc/sys/kernel/yama/ptrace_scope", O_RDONLY);
+
+	if (fd < 0)
+		return 0;
+
+	if (read(fd, buf, 1) < 0) {
+		close(fd);
+		return -1;
+	}
+
+	ret = atoi(buf);
+	close(fd);
+	return ret;
+}
+
+/* clang-format off */
+FIXTURE(hierarchy) {};
+/* clang-format on */
+
+FIXTURE_VARIANT(hierarchy)
+{
+	const bool domain_both;
+	const bool domain_parent;
+	const bool domain_child;
+};
+
+/*
+ * Test multiple tracing combinations between a parent process P1 and a child
+ * process P2.
+ *
+ * Yama's scoped ptrace is presumed disabled.  If enabled, this optional
+ * restriction is enforced in addition to any Landlock check, which means that
+ * all P2 requests to trace P1 would be denied.
+ */
+
+/*
+ *        No domain
+ *
+ *   P1-.               P1 -> P2 : allow
+ *       \              P2 -> P1 : allow
+ *        'P2
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, allow_without_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = false,
+	.domain_child = false,
+};
+
+/*
+ *        Child domain
+ *
+ *   P1--.              P1 -> P2 : allow
+ *        \             P2 -> P1 : deny
+ *        .'-----.
+ *        |  P2  |
+ *        '------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, allow_with_one_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = false,
+	.domain_child = true,
+};
+
+/*
+ *        Parent domain
+ * .------.
+ * |  P1  --.           P1 -> P2 : deny
+ * '------'  \          P2 -> P1 : allow
+ *            '
+ *            P2
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, deny_with_parent_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = true,
+	.domain_child = false,
+};
+
+/*
+ *        Parent + child domain (siblings)
+ * .------.
+ * |  P1  ---.          P1 -> P2 : deny
+ * '------'   \         P2 -> P1 : deny
+ *         .---'--.
+ *         |  P2  |
+ *         '------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, deny_with_sibling_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = true,
+	.domain_child = true,
+};
+
+/*
+ *         Same domain (inherited)
+ * .-------------.
+ * | P1----.     |      P1 -> P2 : allow
+ * |        \    |      P2 -> P1 : allow
+ * |         '   |
+ * |         P2  |
+ * '-------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, allow_sibling_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = false,
+	.domain_child = false,
+};
+
+/*
+ *         Inherited + child domain
+ * .-----------------.
+ * |  P1----.        |  P1 -> P2 : allow
+ * |         \       |  P2 -> P1 : deny
+ * |        .-'----. |
+ * |        |  P2  | |
+ * |        '------' |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, allow_with_nested_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = false,
+	.domain_child = true,
+};
+
+/*
+ *         Inherited + parent domain
+ * .-----------------.
+ * |.------.         |  P1 -> P2 : deny
+ * ||  P1  ----.     |  P2 -> P1 : allow
+ * |'------'    \    |
+ * |             '   |
+ * |             P2  |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, deny_with_nested_and_parent_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = true,
+	.domain_child = false,
+};
+
+/*
+ *         Inherited + parent and child domain (siblings)
+ * .-----------------.
+ * | .------.        |  P1 -> P2 : deny
+ * | |  P1  .        |  P2 -> P1 : deny
+ * | '------'\       |
+ * |          \      |
+ * |        .--'---. |
+ * |        |  P2  | |
+ * |        '------' |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(hierarchy, deny_with_forked_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = true,
+	.domain_child = true,
+};
+
+FIXTURE_SETUP(hierarchy)
+{
+}
+
+FIXTURE_TEARDOWN(hierarchy)
+{
+}
+
+/* Test PTRACE_TRACEME and PTRACE_ATTACH for parent and child. */
+TEST_F(hierarchy, trace)
+{
+	pid_t child, parent;
+	int status, err_proc_read;
+	int pipe_child[2], pipe_parent[2];
+	int yama_ptrace_scope;
+	char buf_parent;
+	long ret;
+	bool can_read_child, can_trace_child, can_read_parent, can_trace_parent;
+
+	yama_ptrace_scope = get_yama_ptrace_scope();
+	ASSERT_LE(0, yama_ptrace_scope);
+
+	if (yama_ptrace_scope > YAMA_SCOPE_DISABLED)
+		TH_LOG("Incomplete tests due to Yama restrictions (scope %d)",
+		       yama_ptrace_scope);
+
+	/*
+	 * can_read_child is true if a parent process can read its child
+	 * process, which is only the case when the parent process is not
+	 * isolated from the child with a dedicated Landlock domain.
+	 */
+	can_read_child = !variant->domain_parent;
+
+	/*
+	 * can_trace_child is true if a parent process can trace its child
+	 * process.  This depends on two conditions:
+	 * - The parent process is not isolated from the child with a dedicated
+	 *   Landlock domain.
+	 * - Yama allows tracing children (up to YAMA_SCOPE_RELATIONAL).
+	 */
+	can_trace_child = can_read_child &&
+			  yama_ptrace_scope <= YAMA_SCOPE_RELATIONAL;
+
+	/*
+	 * can_read_parent is true if a child process can read its parent
+	 * process, which is only the case when the child process is not
+	 * isolated from the parent with a dedicated Landlock domain.
+	 */
+	can_read_parent = !variant->domain_child;
+
+	/*
+	 * can_trace_parent is true if a child process can trace its parent
+	 * process.  This depends on two conditions:
+	 * - The child process is not isolated from the parent with a dedicated
+	 *   Landlock domain.
+	 * - Yama is disabled (YAMA_SCOPE_DISABLED).
+	 */
+	can_trace_parent = can_read_parent &&
+			   yama_ptrace_scope <= YAMA_SCOPE_DISABLED;
+
+	/*
+	 * Removes all effective and permitted capabilities to not interfere
+	 * with cap_ptrace_access_check() in case of PTRACE_MODE_FSCREDS.
+	 */
+	drop_caps(_metadata);
+
+	parent = getpid();
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	if (variant->domain_both) {
+		create_domain(_metadata);
+		if (!__test_passed(_metadata))
+			/* Aborts before forking. */
+			return;
+	}
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		char buf_child;
+
+		ASSERT_EQ(0, close(pipe_parent[1]));
+		ASSERT_EQ(0, close(pipe_child[0]));
+		if (variant->domain_child)
+			create_domain(_metadata);
+
+		/* Waits for the parent to be in a domain, if any. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+
+		/* Tests PTRACE_MODE_READ on the parent. */
+		err_proc_read = test_ptrace_read(parent);
+		if (can_read_parent) {
+			EXPECT_EQ(0, err_proc_read);
+		} else {
+			EXPECT_EQ(EACCES, err_proc_read);
+		}
+
+		/* Tests PTRACE_ATTACH on the parent. */
+		ret = ptrace(PTRACE_ATTACH, parent, NULL, 0);
+		if (can_trace_parent) {
+			EXPECT_EQ(0, ret);
+		} else {
+			EXPECT_EQ(-1, ret);
+			EXPECT_EQ(EPERM, errno);
+		}
+		if (ret == 0) {
+			ASSERT_EQ(parent, waitpid(parent, &status, 0));
+			ASSERT_EQ(1, WIFSTOPPED(status));
+			ASSERT_EQ(0, ptrace(PTRACE_DETACH, parent, NULL, 0));
+		}
+
+		/* Tests child PTRACE_TRACEME. */
+		ret = ptrace(PTRACE_TRACEME);
+		if (can_trace_child) {
+			EXPECT_EQ(0, ret);
+		} else {
+			EXPECT_EQ(-1, ret);
+			EXPECT_EQ(EPERM, errno);
+		}
+
+		/*
+		 * Signals that the PTRACE_ATTACH test is done and the
+		 * PTRACE_TRACEME test is ongoing.
+		 */
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		if (can_trace_child) {
+			ASSERT_EQ(0, raise(SIGSTOP));
+		}
+
+		/* Waits for the parent PTRACE_ATTACH test. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	ASSERT_EQ(0, close(pipe_child[1]));
+	ASSERT_EQ(0, close(pipe_parent[0]));
+	if (variant->domain_parent)
+		create_domain(_metadata);
+
+	/* Signals that the parent is in a domain, if any. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	/*
+	 * Waits for the child to test PTRACE_ATTACH on the parent and start
+	 * testing PTRACE_TRACEME.
+	 */
+	ASSERT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* Tests child PTRACE_TRACEME. */
+	if (can_trace_child) {
+		ASSERT_EQ(child, waitpid(child, &status, 0));
+		ASSERT_EQ(1, WIFSTOPPED(status));
+		ASSERT_EQ(0, ptrace(PTRACE_DETACH, child, NULL, 0));
+	} else {
+		/* The child should not be traced by the parent. */
+		EXPECT_EQ(-1, ptrace(PTRACE_DETACH, child, NULL, 0));
+		EXPECT_EQ(ESRCH, errno);
+	}
+
+	/* Tests PTRACE_MODE_READ on the child. */
+	err_proc_read = test_ptrace_read(child);
+	if (can_read_child) {
+		EXPECT_EQ(0, err_proc_read);
+	} else {
+		EXPECT_EQ(EACCES, err_proc_read);
+	}
+
+	/* Tests PTRACE_ATTACH on the child. */
+	ret = ptrace(PTRACE_ATTACH, child, NULL, 0);
+	if (can_trace_child) {
+		EXPECT_EQ(0, ret);
+	} else {
+		EXPECT_EQ(-1, ret);
+		EXPECT_EQ(EPERM, errno);
+	}
+
+	if (ret == 0) {
+		ASSERT_EQ(child, waitpid(child, &status, 0));
+		ASSERT_EQ(1, WIFSTOPPED(status));
+		ASSERT_EQ(0, ptrace(PTRACE_DETACH, child, NULL, 0));
+	}
+
+	/* Signals that the parent PTRACE_ATTACH test is done. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+static int matches_log_ptrace(struct __test_metadata *const _metadata,
+			      int audit_fd, const pid_t opid)
+{
+	static const char log_template[] = REGEX_LANDLOCK_PREFIX
+		" blockers=ptrace opid=%d ocomm=\"ptrace_test\"$";
+	char log_match[sizeof(log_template) + 10];
+	int log_match_len;
+
+	log_match_len =
+		snprintf(log_match, sizeof(log_match), log_template, opid);
+	if (log_match_len > sizeof(log_match))
+		return -E2BIG;
+
+	return audit_match_record(audit_fd, AUDIT_LANDLOCK_ACCESS, log_match,
+				  NULL);
+}
+
+FIXTURE(audit)
+{
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_SETUP(audit)
+{
+	disable_caps(_metadata);
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd);
+	clear_cap(_metadata, CAP_AUDIT_CONTROL);
+}
+
+FIXTURE_TEARDOWN_PARENT(audit)
+{
+	EXPECT_EQ(0, audit_cleanup(-1, NULL));
+}
+
+/* Test PTRACE_TRACEME and PTRACE_ATTACH for parent and child. */
+TEST_F(audit, trace)
+{
+	pid_t child;
+	int status;
+	int pipe_child[2], pipe_parent[2];
+	int yama_ptrace_scope;
+	char buf_parent;
+	struct audit_records records;
+
+	/* Makes sure there is no superfluous logged records. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+
+	yama_ptrace_scope = get_yama_ptrace_scope();
+	ASSERT_LE(0, yama_ptrace_scope);
+
+	if (yama_ptrace_scope > YAMA_SCOPE_DISABLED)
+		TH_LOG("Incomplete tests due to Yama restrictions (scope %d)",
+		       yama_ptrace_scope);
+
+	/*
+	 * Removes all effective and permitted capabilities to not interfere
+	 * with cap_ptrace_access_check() in case of PTRACE_MODE_FSCREDS.
+	 */
+	drop_caps(_metadata);
+
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		char buf_child;
+
+		ASSERT_EQ(0, close(pipe_parent[1]));
+		ASSERT_EQ(0, close(pipe_child[0]));
+
+		/* Waits for the parent to be in a domain, if any. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+
+		/* Tests child PTRACE_TRACEME. */
+		EXPECT_EQ(-1, ptrace(PTRACE_TRACEME));
+		EXPECT_EQ(EPERM, errno);
+		/* We should see the child process. */
+		EXPECT_EQ(0, matches_log_ptrace(_metadata, self->audit_fd,
+						getpid()));
+
+		EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+		EXPECT_EQ(0, records.access);
+		/* Checks for a domain creation. */
+		EXPECT_EQ(1, records.domain);
+
+		/*
+		 * Signals that the PTRACE_ATTACH test is done and the
+		 * PTRACE_TRACEME test is ongoing.
+		 */
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		/* Waits for the parent PTRACE_ATTACH test. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	ASSERT_EQ(0, close(pipe_child[1]));
+	ASSERT_EQ(0, close(pipe_parent[0]));
+	create_domain(_metadata);
+
+	/* Signals that the parent is in a domain. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	/*
+	 * Waits for the child to test PTRACE_ATTACH on the parent and start
+	 * testing PTRACE_TRACEME.
+	 */
+	ASSERT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+
+	/* The child should not be traced by the parent. */
+	EXPECT_EQ(-1, ptrace(PTRACE_DETACH, child, NULL, 0));
+	EXPECT_EQ(ESRCH, errno);
+
+	/* Tests PTRACE_ATTACH on the child. */
+	EXPECT_EQ(-1, ptrace(PTRACE_ATTACH, child, NULL, 0));
+	EXPECT_EQ(EPERM, errno);
+	EXPECT_EQ(0, matches_log_ptrace(_metadata, self->audit_fd, child));
+
+	/* Signals that the parent PTRACE_ATTACH test is done. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+
+	/* Makes sure there is no superfluous logged records. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/sandbox-and-launch.c b/tools/testing/selftests/landlock/sandbox-and-launch.c
new file mode 100644
index 000000000000..3e32e1a51ac5
--- /dev/null
+++ b/tools/testing/selftests/landlock/sandbox-and-launch.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Sandbox itself and execute another program (in a different mount point).
+ *
+ * Used by layout1.umount_sandboxer from fs_test.c
+ *
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "wrappers.h"
+
+int main(int argc, char *argv[])
+{
+	struct landlock_ruleset_attr ruleset_attr = {
+		.scoped = LANDLOCK_SCOPE_SIGNAL,
+	};
+	int pipe_child, pipe_parent, ruleset_fd;
+	char buf;
+
+	/*
+	 * The first argument must be the file descriptor number of a pipe.
+	 * The second argument must be the program to execute.
+	 */
+	if (argc != 4) {
+		fprintf(stderr, "Wrong number of arguments (not three)\n");
+		return 1;
+	}
+
+	pipe_child = atoi(argv[2]);
+	pipe_parent = atoi(argv[3]);
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	if (ruleset_fd < 0) {
+		perror("Failed to create ruleset");
+		return 1;
+	}
+
+	if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
+		perror("Failed to call prctl()");
+		return 1;
+	}
+
+	if (landlock_restrict_self(ruleset_fd, 0)) {
+		perror("Failed to restrict self");
+		return 1;
+	}
+
+	if (close(ruleset_fd)) {
+		perror("Failed to close ruleset");
+		return 1;
+	}
+
+	/* Signals that we are sandboxed. */
+	errno = 0;
+	if (write(pipe_child, ".", 1) != 1) {
+		perror("Failed to write to the second argument");
+		return 1;
+	}
+
+	/* Waits for the parent to try to umount. */
+	if (read(pipe_parent, &buf, 1) != 1) {
+		perror("Failed to write to the third argument");
+		return 1;
+	}
+
+	/* Shifts arguments. */
+	argv[0] = argv[1];
+	argv[1] = argv[2];
+	argv[2] = argv[3];
+	argv[3] = NULL;
+	execve(argv[0], argv, NULL);
+	perror("Failed to execute the provided binary");
+	return 1;
+}
diff --git a/tools/testing/selftests/landlock/scoped_abstract_unix_test.c b/tools/testing/selftests/landlock/scoped_abstract_unix_test.c
new file mode 100644
index 000000000000..6825082c079c
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_abstract_unix_test.c
@@ -0,0 +1,1152 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Abstract UNIX socket
+ *
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/landlock.h>
+#include <sched.h>
+#include <signal.h>
+#include <stddef.h>
+#include <sys/prctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "audit.h"
+#include "common.h"
+#include "scoped_common.h"
+
+/* Number of pending connections queue to be hold. */
+const short backlog = 10;
+
+static void create_fs_domain(struct __test_metadata *const _metadata)
+{
+	int ruleset_fd;
+	struct landlock_ruleset_attr ruleset_attr = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR,
+	};
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	EXPECT_LE(0, ruleset_fd)
+	{
+		TH_LOG("Failed to create a ruleset: %s", strerror(errno));
+	}
+	EXPECT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	EXPECT_EQ(0, landlock_restrict_self(ruleset_fd, 0));
+	EXPECT_EQ(0, close(ruleset_fd));
+}
+
+FIXTURE(scoped_domains)
+{
+	struct service_fixture stream_address, dgram_address;
+};
+
+#include "scoped_base_variants.h"
+
+FIXTURE_SETUP(scoped_domains)
+{
+	drop_caps(_metadata);
+
+	memset(&self->stream_address, 0, sizeof(self->stream_address));
+	memset(&self->dgram_address, 0, sizeof(self->dgram_address));
+	set_unix_address(&self->stream_address, 0);
+	set_unix_address(&self->dgram_address, 1);
+}
+
+FIXTURE_TEARDOWN(scoped_domains)
+{
+}
+
+/*
+ * Test unix_stream_connect() and unix_may_send() for a child connecting to its
+ * parent, when they have scoped domain or no domain.
+ */
+TEST_F(scoped_domains, connect_to_parent)
+{
+	pid_t child;
+	bool can_connect_to_parent;
+	int status;
+	int pipe_parent[2];
+	int stream_server, dgram_server;
+
+	/*
+	 * can_connect_to_parent is true if a child process can connect to its
+	 * parent process. This depends on the child process not being isolated
+	 * from the parent with a dedicated Landlock domain.
+	 */
+	can_connect_to_parent = !variant->domain_child;
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	if (variant->domain_both) {
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+		if (!__test_passed(_metadata))
+			return;
+	}
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int err;
+		int stream_client, dgram_client;
+		char buf_child;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		if (variant->domain_child)
+			create_scoped_domain(
+				_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		stream_client = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, stream_client);
+		dgram_client = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_client);
+
+		/* Waits for the server. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+
+		err = connect(stream_client, &self->stream_address.unix_addr,
+			      self->stream_address.unix_addr_len);
+		if (can_connect_to_parent) {
+			EXPECT_EQ(0, err);
+		} else {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		}
+		EXPECT_EQ(0, close(stream_client));
+
+		err = connect(dgram_client, &self->dgram_address.unix_addr,
+			      self->dgram_address.unix_addr_len);
+		if (can_connect_to_parent) {
+			EXPECT_EQ(0, err);
+		} else {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		}
+		EXPECT_EQ(0, close(dgram_client));
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	if (variant->domain_parent)
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	stream_server = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, stream_server);
+	dgram_server = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_server);
+	ASSERT_EQ(0, bind(stream_server, &self->stream_address.unix_addr,
+			  self->stream_address.unix_addr_len));
+	ASSERT_EQ(0, bind(dgram_server, &self->dgram_address.unix_addr,
+			  self->dgram_address.unix_addr_len));
+	ASSERT_EQ(0, listen(stream_server, backlog));
+
+	/* Signals to child that the parent is listening. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(stream_server));
+	EXPECT_EQ(0, close(dgram_server));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+/*
+ * Test unix_stream_connect() and unix_may_send() for a parent connecting to
+ * its child, when they have scoped domain or no domain.
+ */
+TEST_F(scoped_domains, connect_to_child)
+{
+	pid_t child;
+	bool can_connect_to_child;
+	int err_stream, err_dgram, errno_stream, errno_dgram, status;
+	int pipe_child[2], pipe_parent[2];
+	char buf;
+	int stream_client, dgram_client;
+
+	/*
+	 * can_connect_to_child is true if a parent process can connect to its
+	 * child process. The parent process is not isolated from the child
+	 * with a dedicated Landlock domain.
+	 */
+	can_connect_to_child = !variant->domain_parent;
+
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	if (variant->domain_both) {
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+		if (!__test_passed(_metadata))
+			return;
+	}
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int stream_server, dgram_server;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(pipe_child[0]));
+		if (variant->domain_child)
+			create_scoped_domain(
+				_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		/* Waits for the parent to be in a domain, if any. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+
+		stream_server = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, stream_server);
+		dgram_server = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_server);
+		ASSERT_EQ(0,
+			  bind(stream_server, &self->stream_address.unix_addr,
+			       self->stream_address.unix_addr_len));
+		ASSERT_EQ(0, bind(dgram_server, &self->dgram_address.unix_addr,
+				  self->dgram_address.unix_addr_len));
+		ASSERT_EQ(0, listen(stream_server, backlog));
+
+		/* Signals to the parent that child is listening. */
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		/* Waits to connect. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+		EXPECT_EQ(0, close(stream_server));
+		EXPECT_EQ(0, close(dgram_server));
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_child[1]));
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	if (variant->domain_parent)
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	/* Signals that the parent is in a domain, if any. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	stream_client = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, stream_client);
+	dgram_client = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_client);
+
+	/* Waits for the child to listen */
+	ASSERT_EQ(1, read(pipe_child[0], &buf, 1));
+	err_stream = connect(stream_client, &self->stream_address.unix_addr,
+			     self->stream_address.unix_addr_len);
+	errno_stream = errno;
+	err_dgram = connect(dgram_client, &self->dgram_address.unix_addr,
+			    self->dgram_address.unix_addr_len);
+	errno_dgram = errno;
+	if (can_connect_to_child) {
+		EXPECT_EQ(0, err_stream);
+		EXPECT_EQ(0, err_dgram);
+	} else {
+		EXPECT_EQ(-1, err_stream);
+		EXPECT_EQ(-1, err_dgram);
+		EXPECT_EQ(EPERM, errno_stream);
+		EXPECT_EQ(EPERM, errno_dgram);
+	}
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(stream_client));
+	EXPECT_EQ(0, close(dgram_client));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+FIXTURE(scoped_audit)
+{
+	struct service_fixture dgram_address;
+	struct audit_filter audit_filter;
+	int audit_fd;
+};
+
+FIXTURE_SETUP(scoped_audit)
+{
+	disable_caps(_metadata);
+
+	memset(&self->dgram_address, 0, sizeof(self->dgram_address));
+	set_unix_address(&self->dgram_address, 1);
+
+	set_cap(_metadata, CAP_AUDIT_CONTROL);
+	self->audit_fd = audit_init_with_exe_filter(&self->audit_filter);
+	EXPECT_LE(0, self->audit_fd);
+	drop_caps(_metadata);
+}
+
+FIXTURE_TEARDOWN_PARENT(scoped_audit)
+{
+	EXPECT_EQ(0, audit_cleanup(-1, NULL));
+}
+
+/* python -c 'print(b"\0selftests-landlock-abstract-unix-".hex().upper())' */
+#define ABSTRACT_SOCKET_PATH_PREFIX \
+	"0073656C6674657374732D6C616E646C6F636B2D61627374726163742D756E69782D"
+
+/*
+ * Simpler version of scoped_domains.connect_to_child, but with audit tests.
+ */
+TEST_F(scoped_audit, connect_to_child)
+{
+	pid_t child;
+	int err_dgram, status;
+	int pipe_child[2], pipe_parent[2];
+	char buf;
+	int dgram_client;
+	struct audit_records records;
+
+	/* Makes sure there is no superfluous logged records. */
+	EXPECT_EQ(0, audit_count_records(self->audit_fd, &records));
+	EXPECT_EQ(0, records.access);
+	EXPECT_EQ(0, records.domain);
+
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int dgram_server;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(pipe_child[0]));
+
+		/* Waits for the parent to be in a domain. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+
+		dgram_server = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_server);
+		ASSERT_EQ(0, bind(dgram_server, &self->dgram_address.unix_addr,
+				  self->dgram_address.unix_addr_len));
+
+		/* Signals to the parent that child is listening. */
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		/* Waits to connect. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+		EXPECT_EQ(0, close(dgram_server));
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_child[1]));
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	create_scoped_domain(_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	/* Signals that the parent is in a domain, if any. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	dgram_client = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_client);
+
+	/* Waits for the child to listen */
+	ASSERT_EQ(1, read(pipe_child[0], &buf, 1));
+	err_dgram = connect(dgram_client, &self->dgram_address.unix_addr,
+			    self->dgram_address.unix_addr_len);
+	EXPECT_EQ(-1, err_dgram);
+	EXPECT_EQ(EPERM, errno);
+
+	EXPECT_EQ(
+		0,
+		audit_match_record(
+			self->audit_fd, AUDIT_LANDLOCK_ACCESS,
+			REGEX_LANDLOCK_PREFIX
+			" blockers=scope\\.abstract_unix_socket path=" ABSTRACT_SOCKET_PATH_PREFIX
+			"[0-9A-F]\\+$",
+			NULL));
+
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(dgram_client));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+FIXTURE(scoped_vs_unscoped)
+{
+	struct service_fixture parent_stream_address, parent_dgram_address,
+		child_stream_address, child_dgram_address;
+};
+
+#include "scoped_multiple_domain_variants.h"
+
+FIXTURE_SETUP(scoped_vs_unscoped)
+{
+	drop_caps(_metadata);
+
+	memset(&self->parent_stream_address, 0,
+	       sizeof(self->parent_stream_address));
+	set_unix_address(&self->parent_stream_address, 0);
+	memset(&self->parent_dgram_address, 0,
+	       sizeof(self->parent_dgram_address));
+	set_unix_address(&self->parent_dgram_address, 1);
+	memset(&self->child_stream_address, 0,
+	       sizeof(self->child_stream_address));
+	set_unix_address(&self->child_stream_address, 2);
+	memset(&self->child_dgram_address, 0,
+	       sizeof(self->child_dgram_address));
+	set_unix_address(&self->child_dgram_address, 3);
+}
+
+FIXTURE_TEARDOWN(scoped_vs_unscoped)
+{
+}
+
+/*
+ * Test unix_stream_connect and unix_may_send for parent, child and
+ * grand child processes when they can have scoped or non-scoped domains.
+ */
+TEST_F(scoped_vs_unscoped, unix_scoping)
+{
+	pid_t child;
+	int status;
+	bool can_connect_to_parent, can_connect_to_child;
+	int pipe_parent[2];
+	int stream_server_parent, dgram_server_parent;
+
+	can_connect_to_child = (variant->domain_grand_child != SCOPE_SANDBOX);
+	can_connect_to_parent = (can_connect_to_child &&
+				 (variant->domain_children != SCOPE_SANDBOX));
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+
+	if (variant->domain_all == OTHER_SANDBOX)
+		create_fs_domain(_metadata);
+	else if (variant->domain_all == SCOPE_SANDBOX)
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int stream_server_child, dgram_server_child;
+		int pipe_child[2];
+		pid_t grand_child;
+
+		ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+
+		if (variant->domain_children == OTHER_SANDBOX)
+			create_fs_domain(_metadata);
+		else if (variant->domain_children == SCOPE_SANDBOX)
+			create_scoped_domain(
+				_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		grand_child = fork();
+		ASSERT_LE(0, grand_child);
+		if (grand_child == 0) {
+			char buf;
+			int stream_err, dgram_err, stream_errno, dgram_errno;
+			int stream_client, dgram_client;
+
+			EXPECT_EQ(0, close(pipe_parent[1]));
+			EXPECT_EQ(0, close(pipe_child[1]));
+
+			if (variant->domain_grand_child == OTHER_SANDBOX)
+				create_fs_domain(_metadata);
+			else if (variant->domain_grand_child == SCOPE_SANDBOX)
+				create_scoped_domain(
+					_metadata,
+					LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+			stream_client = socket(AF_UNIX, SOCK_STREAM, 0);
+			ASSERT_LE(0, stream_client);
+			dgram_client = socket(AF_UNIX, SOCK_DGRAM, 0);
+			ASSERT_LE(0, dgram_client);
+
+			ASSERT_EQ(1, read(pipe_child[0], &buf, 1));
+			stream_err = connect(
+				stream_client,
+				&self->child_stream_address.unix_addr,
+				self->child_stream_address.unix_addr_len);
+			stream_errno = errno;
+			dgram_err = connect(
+				dgram_client,
+				&self->child_dgram_address.unix_addr,
+				self->child_dgram_address.unix_addr_len);
+			dgram_errno = errno;
+			if (can_connect_to_child) {
+				EXPECT_EQ(0, stream_err);
+				EXPECT_EQ(0, dgram_err);
+			} else {
+				EXPECT_EQ(-1, stream_err);
+				EXPECT_EQ(-1, dgram_err);
+				EXPECT_EQ(EPERM, stream_errno);
+				EXPECT_EQ(EPERM, dgram_errno);
+			}
+
+			EXPECT_EQ(0, close(stream_client));
+			stream_client = socket(AF_UNIX, SOCK_STREAM, 0);
+			ASSERT_LE(0, stream_client);
+			/* Datagram sockets can "reconnect". */
+
+			ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+			stream_err = connect(
+				stream_client,
+				&self->parent_stream_address.unix_addr,
+				self->parent_stream_address.unix_addr_len);
+			stream_errno = errno;
+			dgram_err = connect(
+				dgram_client,
+				&self->parent_dgram_address.unix_addr,
+				self->parent_dgram_address.unix_addr_len);
+			dgram_errno = errno;
+			if (can_connect_to_parent) {
+				EXPECT_EQ(0, stream_err);
+				EXPECT_EQ(0, dgram_err);
+			} else {
+				EXPECT_EQ(-1, stream_err);
+				EXPECT_EQ(-1, dgram_err);
+				EXPECT_EQ(EPERM, stream_errno);
+				EXPECT_EQ(EPERM, dgram_errno);
+			}
+			EXPECT_EQ(0, close(stream_client));
+			EXPECT_EQ(0, close(dgram_client));
+
+			_exit(_metadata->exit_code);
+			return;
+		}
+		EXPECT_EQ(0, close(pipe_child[0]));
+		if (variant->domain_child == OTHER_SANDBOX)
+			create_fs_domain(_metadata);
+		else if (variant->domain_child == SCOPE_SANDBOX)
+			create_scoped_domain(
+				_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		stream_server_child = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, stream_server_child);
+		dgram_server_child = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_server_child);
+
+		ASSERT_EQ(0, bind(stream_server_child,
+				  &self->child_stream_address.unix_addr,
+				  self->child_stream_address.unix_addr_len));
+		ASSERT_EQ(0, bind(dgram_server_child,
+				  &self->child_dgram_address.unix_addr,
+				  self->child_dgram_address.unix_addr_len));
+		ASSERT_EQ(0, listen(stream_server_child, backlog));
+
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+		ASSERT_EQ(grand_child, waitpid(grand_child, &status, 0));
+		EXPECT_EQ(0, close(stream_server_child))
+		EXPECT_EQ(0, close(dgram_server_child));
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	if (variant->domain_parent == OTHER_SANDBOX)
+		create_fs_domain(_metadata);
+	else if (variant->domain_parent == SCOPE_SANDBOX)
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	stream_server_parent = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, stream_server_parent);
+	dgram_server_parent = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_server_parent);
+	ASSERT_EQ(0, bind(stream_server_parent,
+			  &self->parent_stream_address.unix_addr,
+			  self->parent_stream_address.unix_addr_len));
+	ASSERT_EQ(0, bind(dgram_server_parent,
+			  &self->parent_dgram_address.unix_addr,
+			  self->parent_dgram_address.unix_addr_len));
+
+	ASSERT_EQ(0, listen(stream_server_parent, backlog));
+
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(stream_server_parent));
+	EXPECT_EQ(0, close(dgram_server_parent));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+FIXTURE(outside_socket)
+{
+	struct service_fixture address, transit_address;
+};
+
+FIXTURE_VARIANT(outside_socket)
+{
+	const bool child_socket;
+	const int type;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(outside_socket, allow_dgram_child) {
+	/* clang-format on */
+	.child_socket = true,
+	.type = SOCK_DGRAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(outside_socket, deny_dgram_server) {
+	/* clang-format on */
+	.child_socket = false,
+	.type = SOCK_DGRAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(outside_socket, allow_stream_child) {
+	/* clang-format on */
+	.child_socket = true,
+	.type = SOCK_STREAM,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(outside_socket, deny_stream_server) {
+	/* clang-format on */
+	.child_socket = false,
+	.type = SOCK_STREAM,
+};
+
+FIXTURE_SETUP(outside_socket)
+{
+	drop_caps(_metadata);
+
+	memset(&self->transit_address, 0, sizeof(self->transit_address));
+	set_unix_address(&self->transit_address, 0);
+	memset(&self->address, 0, sizeof(self->address));
+	set_unix_address(&self->address, 1);
+}
+
+FIXTURE_TEARDOWN(outside_socket)
+{
+}
+
+/*
+ * Test unix_stream_connect and unix_may_send for parent and child processes
+ * when connecting socket has different domain than the process using it.
+ */
+TEST_F(outside_socket, socket_with_different_domain)
+{
+	pid_t child;
+	int err, status;
+	int pipe_child[2], pipe_parent[2];
+	char buf_parent;
+	int server_socket;
+
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int client_socket;
+		char buf_child;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(pipe_child[0]));
+
+		/* Client always has a domain. */
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		if (variant->child_socket) {
+			int data_socket, passed_socket, stream_server;
+
+			passed_socket = socket(AF_UNIX, variant->type, 0);
+			ASSERT_LE(0, passed_socket);
+			stream_server = socket(AF_UNIX, SOCK_STREAM, 0);
+			ASSERT_LE(0, stream_server);
+			ASSERT_EQ(0, bind(stream_server,
+					  &self->transit_address.unix_addr,
+					  self->transit_address.unix_addr_len));
+			ASSERT_EQ(0, listen(stream_server, backlog));
+			ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+			data_socket = accept(stream_server, NULL, NULL);
+			ASSERT_LE(0, data_socket);
+			ASSERT_EQ(0, send_fd(data_socket, passed_socket));
+			EXPECT_EQ(0, close(passed_socket));
+			EXPECT_EQ(0, close(stream_server));
+		}
+
+		client_socket = socket(AF_UNIX, variant->type, 0);
+		ASSERT_LE(0, client_socket);
+
+		/* Waits for parent signal for connection. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		err = connect(client_socket, &self->address.unix_addr,
+			      self->address.unix_addr_len);
+		if (variant->child_socket) {
+			EXPECT_EQ(0, err);
+		} else {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		}
+		EXPECT_EQ(0, close(client_socket));
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_child[1]));
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	if (variant->child_socket) {
+		int client_child = socket(AF_UNIX, SOCK_STREAM, 0);
+
+		ASSERT_LE(0, client_child);
+		ASSERT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+		ASSERT_EQ(0, connect(client_child,
+				     &self->transit_address.unix_addr,
+				     self->transit_address.unix_addr_len));
+		server_socket = recv_fd(client_child);
+		EXPECT_EQ(0, close(client_child));
+	} else {
+		server_socket = socket(AF_UNIX, variant->type, 0);
+	}
+	ASSERT_LE(0, server_socket);
+
+	/* Server always has a domain. */
+	create_scoped_domain(_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+	ASSERT_EQ(0, bind(server_socket, &self->address.unix_addr,
+			  self->address.unix_addr_len));
+	if (variant->type == SOCK_STREAM)
+		ASSERT_EQ(0, listen(server_socket, backlog));
+
+	/* Signals to child that the parent is listening. */
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(server_socket));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+static const char stream_path[] = TMP_DIR "/stream.sock";
+static const char dgram_path[] = TMP_DIR "/dgram.sock";
+
+/* clang-format off */
+FIXTURE(various_address_sockets) {};
+/* clang-format on */
+
+FIXTURE_VARIANT(various_address_sockets)
+{
+	const int domain;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(various_address_sockets, pathname_socket_scoped_domain) {
+	/* clang-format on */
+	.domain = SCOPE_SANDBOX,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(various_address_sockets, pathname_socket_other_domain) {
+	/* clang-format on */
+	.domain = OTHER_SANDBOX,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(various_address_sockets, pathname_socket_no_domain) {
+	/* clang-format on */
+	.domain = NO_SANDBOX,
+};
+
+FIXTURE_SETUP(various_address_sockets)
+{
+	drop_caps(_metadata);
+
+	umask(0077);
+	ASSERT_EQ(0, mkdir(TMP_DIR, 0700));
+}
+
+FIXTURE_TEARDOWN(various_address_sockets)
+{
+	EXPECT_EQ(0, unlink(stream_path));
+	EXPECT_EQ(0, unlink(dgram_path));
+	EXPECT_EQ(0, rmdir(TMP_DIR));
+}
+
+TEST_F(various_address_sockets, scoped_pathname_sockets)
+{
+	socklen_t size_stream, size_dgram;
+	pid_t child;
+	int status;
+	char buf_child, buf_parent;
+	int pipe_parent[2];
+	int unnamed_sockets[2];
+	int stream_pathname_socket, dgram_pathname_socket,
+		stream_abstract_socket, dgram_abstract_socket, data_socket;
+	struct service_fixture stream_abstract_addr, dgram_abstract_addr;
+	struct sockaddr_un stream_pathname_addr = {
+		.sun_family = AF_UNIX,
+	};
+	struct sockaddr_un dgram_pathname_addr = {
+		.sun_family = AF_UNIX,
+	};
+
+	/* Pathname address. */
+	snprintf(stream_pathname_addr.sun_path,
+		 sizeof(stream_pathname_addr.sun_path), "%s", stream_path);
+	size_stream = offsetof(struct sockaddr_un, sun_path) +
+		      strlen(stream_pathname_addr.sun_path);
+	snprintf(dgram_pathname_addr.sun_path,
+		 sizeof(dgram_pathname_addr.sun_path), "%s", dgram_path);
+	size_dgram = offsetof(struct sockaddr_un, sun_path) +
+		     strlen(dgram_pathname_addr.sun_path);
+
+	/* Abstract address. */
+	memset(&stream_abstract_addr, 0, sizeof(stream_abstract_addr));
+	set_unix_address(&stream_abstract_addr, 0);
+	memset(&dgram_abstract_addr, 0, sizeof(dgram_abstract_addr));
+	set_unix_address(&dgram_abstract_addr, 1);
+
+	/* Unnamed address for datagram socket. */
+	ASSERT_EQ(0, socketpair(AF_UNIX, SOCK_DGRAM, 0, unnamed_sockets));
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int err;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(unnamed_sockets[1]));
+
+		if (variant->domain == SCOPE_SANDBOX)
+			create_scoped_domain(
+				_metadata, LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+		else if (variant->domain == OTHER_SANDBOX)
+			create_fs_domain(_metadata);
+
+		/* Waits for parent to listen. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		EXPECT_EQ(0, close(pipe_parent[0]));
+
+		/* Checks that we can send data through a datagram socket. */
+		ASSERT_EQ(1, write(unnamed_sockets[0], "a", 1));
+		EXPECT_EQ(0, close(unnamed_sockets[0]));
+
+		/* Connects with pathname sockets. */
+		stream_pathname_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, stream_pathname_socket);
+		ASSERT_EQ(0, connect(stream_pathname_socket,
+				     &stream_pathname_addr, size_stream));
+		ASSERT_EQ(1, write(stream_pathname_socket, "b", 1));
+		EXPECT_EQ(0, close(stream_pathname_socket));
+
+		/* Sends without connection. */
+		dgram_pathname_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_pathname_socket);
+		err = sendto(dgram_pathname_socket, "c", 1, 0,
+			     &dgram_pathname_addr, size_dgram);
+		EXPECT_EQ(1, err);
+
+		/* Sends with connection. */
+		ASSERT_EQ(0, connect(dgram_pathname_socket,
+				     &dgram_pathname_addr, size_dgram));
+		ASSERT_EQ(1, write(dgram_pathname_socket, "d", 1));
+		EXPECT_EQ(0, close(dgram_pathname_socket));
+
+		/* Connects with abstract sockets. */
+		stream_abstract_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, stream_abstract_socket);
+		err = connect(stream_abstract_socket,
+			      &stream_abstract_addr.unix_addr,
+			      stream_abstract_addr.unix_addr_len);
+		if (variant->domain == SCOPE_SANDBOX) {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		} else {
+			EXPECT_EQ(0, err);
+			ASSERT_EQ(1, write(stream_abstract_socket, "e", 1));
+		}
+		EXPECT_EQ(0, close(stream_abstract_socket));
+
+		/* Sends without connection. */
+		dgram_abstract_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, dgram_abstract_socket);
+		err = sendto(dgram_abstract_socket, "f", 1, 0,
+			     &dgram_abstract_addr.unix_addr,
+			     dgram_abstract_addr.unix_addr_len);
+		if (variant->domain == SCOPE_SANDBOX) {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		} else {
+			EXPECT_EQ(1, err);
+		}
+
+		/* Sends with connection. */
+		err = connect(dgram_abstract_socket,
+			      &dgram_abstract_addr.unix_addr,
+			      dgram_abstract_addr.unix_addr_len);
+		if (variant->domain == SCOPE_SANDBOX) {
+			EXPECT_EQ(-1, err);
+			EXPECT_EQ(EPERM, errno);
+		} else {
+			EXPECT_EQ(0, err);
+			ASSERT_EQ(1, write(dgram_abstract_socket, "g", 1));
+		}
+		EXPECT_EQ(0, close(dgram_abstract_socket));
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	EXPECT_EQ(0, close(unnamed_sockets[0]));
+
+	/* Sets up pathname servers. */
+	stream_pathname_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, stream_pathname_socket);
+	ASSERT_EQ(0, bind(stream_pathname_socket, &stream_pathname_addr,
+			  size_stream));
+	ASSERT_EQ(0, listen(stream_pathname_socket, backlog));
+
+	dgram_pathname_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_pathname_socket);
+	ASSERT_EQ(0, bind(dgram_pathname_socket, &dgram_pathname_addr,
+			  size_dgram));
+
+	/* Sets up abstract servers. */
+	stream_abstract_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, stream_abstract_socket);
+	ASSERT_EQ(0,
+		  bind(stream_abstract_socket, &stream_abstract_addr.unix_addr,
+		       stream_abstract_addr.unix_addr_len));
+
+	dgram_abstract_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, dgram_abstract_socket);
+	ASSERT_EQ(0, bind(dgram_abstract_socket, &dgram_abstract_addr.unix_addr,
+			  dgram_abstract_addr.unix_addr_len));
+	ASSERT_EQ(0, listen(stream_abstract_socket, backlog));
+
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+
+	/* Reads from unnamed socket. */
+	ASSERT_EQ(1, read(unnamed_sockets[1], &buf_parent, sizeof(buf_parent)));
+	ASSERT_EQ('a', buf_parent);
+	EXPECT_LE(0, close(unnamed_sockets[1]));
+
+	/* Reads from pathname sockets. */
+	data_socket = accept(stream_pathname_socket, NULL, NULL);
+	ASSERT_LE(0, data_socket);
+	ASSERT_EQ(1, read(data_socket, &buf_parent, sizeof(buf_parent)));
+	ASSERT_EQ('b', buf_parent);
+	EXPECT_EQ(0, close(data_socket));
+	EXPECT_EQ(0, close(stream_pathname_socket));
+
+	ASSERT_EQ(1,
+		  read(dgram_pathname_socket, &buf_parent, sizeof(buf_parent)));
+	ASSERT_EQ('c', buf_parent);
+	ASSERT_EQ(1,
+		  read(dgram_pathname_socket, &buf_parent, sizeof(buf_parent)));
+	ASSERT_EQ('d', buf_parent);
+	EXPECT_EQ(0, close(dgram_pathname_socket));
+
+	if (variant->domain != SCOPE_SANDBOX) {
+		/* Reads from abstract sockets if allowed to send. */
+		data_socket = accept(stream_abstract_socket, NULL, NULL);
+		ASSERT_LE(0, data_socket);
+		ASSERT_EQ(1,
+			  read(data_socket, &buf_parent, sizeof(buf_parent)));
+		ASSERT_EQ('e', buf_parent);
+		EXPECT_EQ(0, close(data_socket));
+
+		ASSERT_EQ(1, read(dgram_abstract_socket, &buf_parent,
+				  sizeof(buf_parent)));
+		ASSERT_EQ('f', buf_parent);
+		ASSERT_EQ(1, read(dgram_abstract_socket, &buf_parent,
+				  sizeof(buf_parent)));
+		ASSERT_EQ('g', buf_parent);
+	}
+
+	/* Waits for all abstract socket tests. */
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(stream_abstract_socket));
+	EXPECT_EQ(0, close(dgram_abstract_socket));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+TEST(datagram_sockets)
+{
+	struct service_fixture connected_addr, non_connected_addr;
+	int server_conn_socket, server_unconn_socket;
+	int pipe_parent[2], pipe_child[2];
+	int status;
+	char buf;
+	pid_t child;
+
+	drop_caps(_metadata);
+	memset(&connected_addr, 0, sizeof(connected_addr));
+	set_unix_address(&connected_addr, 0);
+	memset(&non_connected_addr, 0, sizeof(non_connected_addr));
+	set_unix_address(&non_connected_addr, 1);
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int client_conn_socket, client_unconn_socket;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(pipe_child[0]));
+
+		client_conn_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+		client_unconn_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+		ASSERT_LE(0, client_conn_socket);
+		ASSERT_LE(0, client_unconn_socket);
+
+		/* Waits for parent to listen. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf, 1));
+		ASSERT_EQ(0,
+			  connect(client_conn_socket, &connected_addr.unix_addr,
+				  connected_addr.unix_addr_len));
+
+		/*
+		 * Both connected and non-connected sockets can send data when
+		 * the domain is not scoped.
+		 */
+		ASSERT_EQ(1, send(client_conn_socket, ".", 1, 0));
+		ASSERT_EQ(1, sendto(client_unconn_socket, ".", 1, 0,
+				    &non_connected_addr.unix_addr,
+				    non_connected_addr.unix_addr_len));
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		/* Scopes the domain. */
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		/*
+		 * Connected socket sends data to the receiver, but the
+		 * non-connected socket must fail to send data.
+		 */
+		ASSERT_EQ(1, send(client_conn_socket, ".", 1, 0));
+		ASSERT_EQ(-1, sendto(client_unconn_socket, ".", 1, 0,
+				     &non_connected_addr.unix_addr,
+				     non_connected_addr.unix_addr_len));
+		ASSERT_EQ(EPERM, errno);
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+
+		EXPECT_EQ(0, close(client_conn_socket));
+		EXPECT_EQ(0, close(client_unconn_socket));
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	EXPECT_EQ(0, close(pipe_child[1]));
+
+	server_conn_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	server_unconn_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, server_conn_socket);
+	ASSERT_LE(0, server_unconn_socket);
+
+	ASSERT_EQ(0, bind(server_conn_socket, &connected_addr.unix_addr,
+			  connected_addr.unix_addr_len));
+	ASSERT_EQ(0, bind(server_unconn_socket, &non_connected_addr.unix_addr,
+			  non_connected_addr.unix_addr_len));
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	/* Waits for child to test. */
+	ASSERT_EQ(1, read(pipe_child[0], &buf, 1));
+	ASSERT_EQ(1, recv(server_conn_socket, &buf, 1, 0));
+	ASSERT_EQ(1, recv(server_unconn_socket, &buf, 1, 0));
+
+	/*
+	 * Connected datagram socket will receive data, but
+	 * non-connected datagram socket does not receive data.
+	 */
+	ASSERT_EQ(1, read(pipe_child[0], &buf, 1));
+	ASSERT_EQ(1, recv(server_conn_socket, &buf, 1, 0));
+
+	/* Waits for all tests to finish. */
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(server_conn_socket));
+	EXPECT_EQ(0, close(server_unconn_socket));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+TEST(self_connect)
+{
+	struct service_fixture connected_addr, non_connected_addr;
+	int connected_socket, non_connected_socket, status;
+	pid_t child;
+
+	drop_caps(_metadata);
+	memset(&connected_addr, 0, sizeof(connected_addr));
+	set_unix_address(&connected_addr, 0);
+	memset(&non_connected_addr, 0, sizeof(non_connected_addr));
+	set_unix_address(&non_connected_addr, 1);
+
+	connected_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	non_connected_socket = socket(AF_UNIX, SOCK_DGRAM, 0);
+	ASSERT_LE(0, connected_socket);
+	ASSERT_LE(0, non_connected_socket);
+
+	ASSERT_EQ(0, bind(connected_socket, &connected_addr.unix_addr,
+			  connected_addr.unix_addr_len));
+	ASSERT_EQ(0, bind(non_connected_socket, &non_connected_addr.unix_addr,
+			  non_connected_addr.unix_addr_len));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		/* Child's domain is scoped. */
+		create_scoped_domain(_metadata,
+				     LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET);
+
+		/*
+		 * The child inherits the sockets, and cannot connect or
+		 * send data to them.
+		 */
+		ASSERT_EQ(-1,
+			  connect(connected_socket, &connected_addr.unix_addr,
+				  connected_addr.unix_addr_len));
+		ASSERT_EQ(EPERM, errno);
+
+		ASSERT_EQ(-1, sendto(connected_socket, ".", 1, 0,
+				     &connected_addr.unix_addr,
+				     connected_addr.unix_addr_len));
+		ASSERT_EQ(EPERM, errno);
+
+		ASSERT_EQ(-1, sendto(non_connected_socket, ".", 1, 0,
+				     &non_connected_addr.unix_addr,
+				     non_connected_addr.unix_addr_len));
+		ASSERT_EQ(EPERM, errno);
+
+		EXPECT_EQ(0, close(connected_socket));
+		EXPECT_EQ(0, close(non_connected_socket));
+		_exit(_metadata->exit_code);
+		return;
+	}
+
+	/* Waits for all tests to finish. */
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	EXPECT_EQ(0, close(connected_socket));
+	EXPECT_EQ(0, close(non_connected_socket));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/scoped_base_variants.h b/tools/testing/selftests/landlock/scoped_base_variants.h
new file mode 100644
index 000000000000..d3b1fa8a584e
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_base_variants.h
@@ -0,0 +1,156 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Landlock scoped_domains variants
+ *
+ * See the hierarchy variants from ptrace_test.c
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2019-2020 ANSSI
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+/* clang-format on */
+FIXTURE_VARIANT(scoped_domains)
+{
+	bool domain_both;
+	bool domain_parent;
+	bool domain_child;
+};
+
+/*
+ *        No domain
+ *
+ *   P1-.               P1 -> P2 : allow
+ *       \              P2 -> P1 : allow
+ *        'P2
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, without_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = false,
+	.domain_child = false,
+};
+
+/*
+ *        Child domain
+ *
+ *   P1--.              P1 -> P2 : allow
+ *        \             P2 -> P1 : deny
+ *        .'-----.
+ *        |  P2  |
+ *        '------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, child_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = false,
+	.domain_child = true,
+};
+
+/*
+ *        Parent domain
+ * .------.
+ * |  P1  --.           P1 -> P2 : deny
+ * '------'  \          P2 -> P1 : allow
+ *            '
+ *            P2
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, parent_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = true,
+	.domain_child = false,
+};
+
+/*
+ *        Parent + child domain (siblings)
+ * .------.
+ * |  P1  ---.          P1 -> P2 : deny
+ * '------'   \         P2 -> P1 : deny
+ *         .---'--.
+ *         |  P2  |
+ *         '------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, sibling_domain) {
+	/* clang-format on */
+	.domain_both = false,
+	.domain_parent = true,
+	.domain_child = true,
+};
+
+/*
+ *         Same domain (inherited)
+ * .-------------.
+ * | P1----.     |      P1 -> P2 : allow
+ * |        \    |      P2 -> P1 : allow
+ * |         '   |
+ * |         P2  |
+ * '-------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, inherited_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = false,
+	.domain_child = false,
+};
+
+/*
+ *         Inherited + child domain
+ * .-----------------.
+ * |  P1----.        |  P1 -> P2 : allow
+ * |         \       |  P2 -> P1 : deny
+ * |        .-'----. |
+ * |        |  P2  | |
+ * |        '------' |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, nested_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = false,
+	.domain_child = true,
+};
+
+/*
+ *         Inherited + parent domain
+ * .-----------------.
+ * |.------.         |  P1 -> P2 : deny
+ * ||  P1  ----.     |  P2 -> P1 : allow
+ * |'------'    \    |
+ * |             '   |
+ * |             P2  |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, nested_and_parent_domain) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = true,
+	.domain_child = false,
+};
+
+/*
+ *         Inherited + parent and child domain (siblings)
+ * .-----------------.
+ * | .------.        |  P1 -> P2 : deny
+ * | |  P1  .        |  P2 -> P1 : deny
+ * | '------'\       |
+ * |          \      |
+ * |        .--'---. |
+ * |        |  P2  | |
+ * |        '------' |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_domains, forked_domains) {
+	/* clang-format on */
+	.domain_both = true,
+	.domain_parent = true,
+	.domain_child = true,
+};
diff --git a/tools/testing/selftests/landlock/scoped_common.h b/tools/testing/selftests/landlock/scoped_common.h
new file mode 100644
index 000000000000..a9a912d30c4d
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_common.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Landlock scope test helpers
+ *
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+#define _GNU_SOURCE
+
+#include <sys/types.h>
+
+static void create_scoped_domain(struct __test_metadata *const _metadata,
+				 const __u16 scope)
+{
+	int ruleset_fd;
+	const struct landlock_ruleset_attr ruleset_attr = {
+		.scoped = scope,
+	};
+
+	ruleset_fd =
+		landlock_create_ruleset(&ruleset_attr, sizeof(ruleset_attr), 0);
+	ASSERT_LE(0, ruleset_fd)
+	{
+		TH_LOG("Failed to create a ruleset: %s", strerror(errno));
+	}
+	enforce_ruleset(_metadata, ruleset_fd);
+	EXPECT_EQ(0, close(ruleset_fd));
+}
diff --git a/tools/testing/selftests/landlock/scoped_multiple_domain_variants.h b/tools/testing/selftests/landlock/scoped_multiple_domain_variants.h
new file mode 100644
index 000000000000..bcd9a83805d0
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_multiple_domain_variants.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Landlock variants for three processes with various domains.
+ *
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+enum sandbox_type {
+	NO_SANDBOX,
+	SCOPE_SANDBOX,
+	/* Any other type of sandboxing domain */
+	OTHER_SANDBOX,
+};
+
+/* clang-format on */
+FIXTURE_VARIANT(scoped_vs_unscoped)
+{
+	const int domain_all;
+	const int domain_parent;
+	const int domain_children;
+	const int domain_child;
+	const int domain_grand_child;
+};
+
+/*
+ * .-----------------.
+ * |         ####### |  P3 -> P2 : allow
+ * |   P1----# P2  # |  P3 -> P1 : deny
+ * |         #  |  # |
+ * |         # P3  # |
+ * |         ####### |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, deny_scoped) {
+	.domain_all = OTHER_SANDBOX,
+	.domain_parent = NO_SANDBOX,
+	.domain_children = SCOPE_SANDBOX,
+	.domain_child = NO_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ * ###################
+ * #         ####### #  P3 -> P2 : allow
+ * #   P1----# P2  # #  P3 -> P1 : deny
+ * #         #  |  # #
+ * #         # P3  # #
+ * #         ####### #
+ * ###################
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, all_scoped) {
+	.domain_all = SCOPE_SANDBOX,
+	.domain_parent = NO_SANDBOX,
+	.domain_children = SCOPE_SANDBOX,
+	.domain_child = NO_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ * .-----------------.
+ * |         .-----. |  P3 -> P2 : allow
+ * |   P1----| P2  | |  P3 -> P1 : allow
+ * |         |     | |
+ * |         | P3  | |
+ * |         '-----' |
+ * '-----------------'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, allow_with_other_domain) {
+	.domain_all = OTHER_SANDBOX,
+	.domain_parent = NO_SANDBOX,
+	.domain_children = OTHER_SANDBOX,
+	.domain_child = NO_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ *  .----.    ######   P3 -> P2 : allow
+ *  | P1 |----# P2 #   P3 -> P1 : allow
+ *  '----'    ######
+ *              |
+ *              P3
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, allow_with_one_domain) {
+	.domain_all = NO_SANDBOX,
+	.domain_parent = OTHER_SANDBOX,
+	.domain_children = NO_SANDBOX,
+	.domain_child = SCOPE_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ *  ######    .-----.   P3 -> P2 : allow
+ *  # P1 #----| P2  |   P3 -> P1 : allow
+ *  ######    '-----'
+ *              |
+ *              P3
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, allow_with_grand_parent_scoped) {
+	.domain_all = NO_SANDBOX,
+	.domain_parent = SCOPE_SANDBOX,
+	.domain_children = NO_SANDBOX,
+	.domain_child = OTHER_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ *  ######    ######   P3 -> P2 : allow
+ *  # P1 #----# P2 #   P3 -> P1 : allow
+ *  ######    ######
+ *               |
+ *             .----.
+ *             | P3 |
+ *             '----'
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, allow_with_parents_domain) {
+	.domain_all = NO_SANDBOX,
+	.domain_parent = SCOPE_SANDBOX,
+	.domain_children = NO_SANDBOX,
+	.domain_child = SCOPE_SANDBOX,
+	.domain_grand_child = NO_SANDBOX,
+	/* clang-format on */
+};
+
+/*
+ *  ######		P3 -> P2 : deny
+ *  # P1 #----P2	P3 -> P1 : deny
+ *  ######     |
+ *	       |
+ *	     ######
+ *           # P3 #
+ *           ######
+ */
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoped_vs_unscoped, deny_with_self_and_grandparent_domain) {
+	.domain_all = NO_SANDBOX,
+	.domain_parent = SCOPE_SANDBOX,
+	.domain_children = NO_SANDBOX,
+	.domain_child = NO_SANDBOX,
+	.domain_grand_child = SCOPE_SANDBOX,
+	/* clang-format on */
+};
diff --git a/tools/testing/selftests/landlock/scoped_signal_test.c b/tools/testing/selftests/landlock/scoped_signal_test.c
new file mode 100644
index 000000000000..d8bf33417619
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_signal_test.c
@@ -0,0 +1,562 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Signal Scoping
+ *
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/landlock.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "common.h"
+#include "scoped_common.h"
+
+/* This variable is used for handling several signals. */
+static volatile sig_atomic_t is_signaled;
+
+/* clang-format off */
+FIXTURE(scoping_signals) {};
+/* clang-format on */
+
+FIXTURE_VARIANT(scoping_signals)
+{
+	int sig;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoping_signals, sigtrap) {
+	/* clang-format on */
+	.sig = SIGTRAP,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoping_signals, sigurg) {
+	/* clang-format on */
+	.sig = SIGURG,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoping_signals, sighup) {
+	/* clang-format on */
+	.sig = SIGHUP,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(scoping_signals, sigtstp) {
+	/* clang-format on */
+	.sig = SIGTSTP,
+};
+
+FIXTURE_SETUP(scoping_signals)
+{
+	drop_caps(_metadata);
+
+	is_signaled = 0;
+}
+
+FIXTURE_TEARDOWN(scoping_signals)
+{
+}
+
+static void scope_signal_handler(int sig, siginfo_t *info, void *ucontext)
+{
+	if (sig == SIGTRAP || sig == SIGURG || sig == SIGHUP || sig == SIGTSTP)
+		is_signaled = 1;
+}
+
+/*
+ * In this test, a child process sends a signal to parent before and
+ * after getting scoped.
+ */
+TEST_F(scoping_signals, send_sig_to_parent)
+{
+	int pipe_parent[2];
+	int status;
+	pid_t child;
+	pid_t parent = getpid();
+	struct sigaction action = {
+		.sa_sigaction = scope_signal_handler,
+		.sa_flags = SA_SIGINFO,
+
+	};
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	ASSERT_LE(0, sigaction(variant->sig, &action, NULL));
+
+	/* The process should not have already been signaled. */
+	EXPECT_EQ(0, is_signaled);
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		char buf_child;
+		int err;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+
+		/*
+		 * The child process can send signal to parent when
+		 * domain is not scoped.
+		 */
+		err = kill(parent, variant->sig);
+		ASSERT_EQ(0, err);
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		EXPECT_EQ(0, close(pipe_parent[0]));
+
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+		/*
+		 * The child process cannot send signal to the parent
+		 * anymore.
+		 */
+		err = kill(parent, variant->sig);
+		ASSERT_EQ(-1, err);
+		ASSERT_EQ(EPERM, errno);
+
+		/*
+		 * No matter of the domain, a process should be able to
+		 * send a signal to itself.
+		 */
+		ASSERT_EQ(0, is_signaled);
+		ASSERT_EQ(0, raise(variant->sig));
+		ASSERT_EQ(1, is_signaled);
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+
+	/* Waits for a first signal to be received, without race condition. */
+	while (!is_signaled && !usleep(1))
+		;
+	ASSERT_EQ(1, is_signaled);
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+	is_signaled = 0;
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+
+	EXPECT_EQ(0, is_signaled);
+}
+
+/* clang-format off */
+FIXTURE(scoped_domains) {};
+/* clang-format on */
+
+#include "scoped_base_variants.h"
+
+FIXTURE_SETUP(scoped_domains)
+{
+	drop_caps(_metadata);
+}
+
+FIXTURE_TEARDOWN(scoped_domains)
+{
+}
+
+/*
+ * This test ensures that a scoped process cannot send signal out of
+ * scoped domain.
+ */
+TEST_F(scoped_domains, check_access_signal)
+{
+	pid_t child;
+	pid_t parent = getpid();
+	int status;
+	bool can_signal_child, can_signal_parent;
+	int pipe_parent[2], pipe_child[2];
+	char buf_parent;
+	int err;
+
+	can_signal_parent = !variant->domain_child;
+	can_signal_child = !variant->domain_parent;
+
+	if (variant->domain_both)
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		char buf_child;
+
+		EXPECT_EQ(0, close(pipe_child[0]));
+		EXPECT_EQ(0, close(pipe_parent[1]));
+
+		if (variant->domain_child)
+			create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+		EXPECT_EQ(0, close(pipe_child[1]));
+
+		/* Waits for the parent to send signals. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buf_child, 1));
+		EXPECT_EQ(0, close(pipe_parent[0]));
+
+		err = kill(parent, 0);
+		if (can_signal_parent) {
+			ASSERT_EQ(0, err);
+		} else {
+			ASSERT_EQ(-1, err);
+			ASSERT_EQ(EPERM, errno);
+		}
+		/*
+		 * No matter of the domain, a process should be able to
+		 * send a signal to itself.
+		 */
+		ASSERT_EQ(0, raise(0));
+
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	EXPECT_EQ(0, close(pipe_child[1]));
+
+	if (variant->domain_parent)
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	ASSERT_EQ(1, read(pipe_child[0], &buf_parent, 1));
+	EXPECT_EQ(0, close(pipe_child[0]));
+
+	err = kill(child, 0);
+	if (can_signal_child) {
+		ASSERT_EQ(0, err);
+	} else {
+		ASSERT_EQ(-1, err);
+		ASSERT_EQ(EPERM, errno);
+	}
+	ASSERT_EQ(0, raise(0));
+
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+enum thread_return {
+	THREAD_INVALID = 0,
+	THREAD_SUCCESS = 1,
+	THREAD_ERROR = 2,
+	THREAD_TEST_FAILED = 3,
+};
+
+static void *thread_sync(void *arg)
+{
+	const int pipe_read = *(int *)arg;
+	char buf;
+
+	if (read(pipe_read, &buf, 1) != 1)
+		return (void *)THREAD_ERROR;
+
+	return (void *)THREAD_SUCCESS;
+}
+
+TEST(signal_scoping_thread_before)
+{
+	pthread_t no_sandbox_thread;
+	enum thread_return ret = THREAD_INVALID;
+	int thread_pipe[2];
+
+	drop_caps(_metadata);
+	ASSERT_EQ(0, pipe2(thread_pipe, O_CLOEXEC));
+
+	ASSERT_EQ(0, pthread_create(&no_sandbox_thread, NULL, thread_sync,
+				    &thread_pipe[0]));
+
+	/* Enforces restriction after creating the thread. */
+	create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	EXPECT_EQ(0, pthread_kill(no_sandbox_thread, 0));
+	EXPECT_EQ(1, write(thread_pipe[1], ".", 1));
+
+	EXPECT_EQ(0, pthread_join(no_sandbox_thread, (void **)&ret));
+	EXPECT_EQ(THREAD_SUCCESS, ret);
+
+	EXPECT_EQ(0, close(thread_pipe[0]));
+	EXPECT_EQ(0, close(thread_pipe[1]));
+}
+
+TEST(signal_scoping_thread_after)
+{
+	pthread_t scoped_thread;
+	enum thread_return ret = THREAD_INVALID;
+	int thread_pipe[2];
+
+	drop_caps(_metadata);
+	ASSERT_EQ(0, pipe2(thread_pipe, O_CLOEXEC));
+
+	/* Enforces restriction before creating the thread. */
+	create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	ASSERT_EQ(0, pthread_create(&scoped_thread, NULL, thread_sync,
+				    &thread_pipe[0]));
+
+	EXPECT_EQ(0, pthread_kill(scoped_thread, 0));
+	EXPECT_EQ(1, write(thread_pipe[1], ".", 1));
+
+	EXPECT_EQ(0, pthread_join(scoped_thread, (void **)&ret));
+	EXPECT_EQ(THREAD_SUCCESS, ret);
+
+	EXPECT_EQ(0, close(thread_pipe[0]));
+	EXPECT_EQ(0, close(thread_pipe[1]));
+}
+
+struct thread_setuid_args {
+	int pipe_read, new_uid;
+};
+
+void *thread_setuid(void *ptr)
+{
+	const struct thread_setuid_args *arg = ptr;
+	char buf;
+
+	if (read(arg->pipe_read, &buf, 1) != 1)
+		return (void *)THREAD_ERROR;
+
+	/* libc's setuid() should update all thread's credentials. */
+	if (getuid() != arg->new_uid)
+		return (void *)THREAD_TEST_FAILED;
+
+	return (void *)THREAD_SUCCESS;
+}
+
+TEST(signal_scoping_thread_setuid)
+{
+	struct thread_setuid_args arg;
+	pthread_t no_sandbox_thread;
+	enum thread_return ret = THREAD_INVALID;
+	int pipe_parent[2];
+	int prev_uid;
+
+	disable_caps(_metadata);
+
+	/* This test does not need to be run as root. */
+	prev_uid = getuid();
+	arg.new_uid = prev_uid + 1;
+	EXPECT_LT(0, arg.new_uid);
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	arg.pipe_read = pipe_parent[0];
+
+	/* Capabilities must be set before creating a new thread. */
+	set_cap(_metadata, CAP_SETUID);
+	ASSERT_EQ(0, pthread_create(&no_sandbox_thread, NULL, thread_setuid,
+				    &arg));
+
+	/* Enforces restriction after creating the thread. */
+	create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	EXPECT_NE(arg.new_uid, getuid());
+	EXPECT_EQ(0, setuid(arg.new_uid));
+	EXPECT_EQ(arg.new_uid, getuid());
+	EXPECT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	EXPECT_EQ(0, pthread_join(no_sandbox_thread, (void **)&ret));
+	EXPECT_EQ(THREAD_SUCCESS, ret);
+
+	clear_cap(_metadata, CAP_SETUID);
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+}
+
+const short backlog = 10;
+
+static volatile sig_atomic_t signal_received;
+
+static void handle_sigurg(int sig)
+{
+	if (sig == SIGURG)
+		signal_received = 1;
+	else
+		signal_received = -1;
+}
+
+static int setup_signal_handler(int signal)
+{
+	struct sigaction sa = {
+		.sa_handler = handle_sigurg,
+	};
+
+	if (sigemptyset(&sa.sa_mask))
+		return -1;
+
+	sa.sa_flags = SA_SIGINFO | SA_RESTART;
+	return sigaction(SIGURG, &sa, NULL);
+}
+
+/* clang-format off */
+FIXTURE(fown) {};
+/* clang-format on */
+
+enum fown_sandbox {
+	SANDBOX_NONE,
+	SANDBOX_BEFORE_FORK,
+	SANDBOX_BEFORE_SETOWN,
+	SANDBOX_AFTER_SETOWN,
+};
+
+FIXTURE_VARIANT(fown)
+{
+	const enum fown_sandbox sandbox_setown;
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(fown, no_sandbox) {
+	/* clang-format on */
+	.sandbox_setown = SANDBOX_NONE,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(fown, sandbox_before_fork) {
+	/* clang-format on */
+	.sandbox_setown = SANDBOX_BEFORE_FORK,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(fown, sandbox_before_setown) {
+	/* clang-format on */
+	.sandbox_setown = SANDBOX_BEFORE_SETOWN,
+};
+
+/* clang-format off */
+FIXTURE_VARIANT_ADD(fown, sandbox_after_setown) {
+	/* clang-format on */
+	.sandbox_setown = SANDBOX_AFTER_SETOWN,
+};
+
+FIXTURE_SETUP(fown)
+{
+	drop_caps(_metadata);
+}
+
+FIXTURE_TEARDOWN(fown)
+{
+}
+
+/*
+ * Sending an out of bound message will trigger the SIGURG signal
+ * through file_send_sigiotask.
+ */
+TEST_F(fown, sigurg_socket)
+{
+	int server_socket, recv_socket;
+	struct service_fixture server_address;
+	char buffer_parent;
+	int status;
+	int pipe_parent[2], pipe_child[2];
+	pid_t child;
+
+	memset(&server_address, 0, sizeof(server_address));
+	set_unix_address(&server_address, 0);
+
+	ASSERT_EQ(0, pipe2(pipe_parent, O_CLOEXEC));
+	ASSERT_EQ(0, pipe2(pipe_child, O_CLOEXEC));
+
+	if (variant->sandbox_setown == SANDBOX_BEFORE_FORK)
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	child = fork();
+	ASSERT_LE(0, child);
+	if (child == 0) {
+		int client_socket;
+		char buffer_child;
+
+		EXPECT_EQ(0, close(pipe_parent[1]));
+		EXPECT_EQ(0, close(pipe_child[0]));
+
+		ASSERT_EQ(0, setup_signal_handler(SIGURG));
+		client_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, client_socket);
+
+		/* Waits for the parent to listen. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buffer_child, 1));
+		ASSERT_EQ(0, connect(client_socket, &server_address.unix_addr,
+				     server_address.unix_addr_len));
+
+		/*
+		 * Waits for the parent to accept the connection, sandbox
+		 * itself, and call fcntl(2).
+		 */
+		ASSERT_EQ(1, read(pipe_parent[0], &buffer_child, 1));
+		/* May signal itself. */
+		ASSERT_EQ(1, send(client_socket, ".", 1, MSG_OOB));
+		EXPECT_EQ(0, close(client_socket));
+		ASSERT_EQ(1, write(pipe_child[1], ".", 1));
+		EXPECT_EQ(0, close(pipe_child[1]));
+
+		/* Waits for the message to be received. */
+		ASSERT_EQ(1, read(pipe_parent[0], &buffer_child, 1));
+		EXPECT_EQ(0, close(pipe_parent[0]));
+
+		if (variant->sandbox_setown == SANDBOX_BEFORE_SETOWN) {
+			ASSERT_EQ(0, signal_received);
+		} else {
+			/*
+			 * A signal is only received if fcntl(F_SETOWN) was
+			 * called before any sandboxing or if the signal
+			 * receiver is in the same domain.
+			 */
+			ASSERT_EQ(1, signal_received);
+		}
+		_exit(_metadata->exit_code);
+		return;
+	}
+	EXPECT_EQ(0, close(pipe_parent[0]));
+	EXPECT_EQ(0, close(pipe_child[1]));
+
+	server_socket = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LE(0, server_socket);
+	ASSERT_EQ(0, bind(server_socket, &server_address.unix_addr,
+			  server_address.unix_addr_len));
+	ASSERT_EQ(0, listen(server_socket, backlog));
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	recv_socket = accept(server_socket, NULL, NULL);
+	ASSERT_LE(0, recv_socket);
+
+	if (variant->sandbox_setown == SANDBOX_BEFORE_SETOWN)
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	/*
+	 * Sets the child to receive SIGURG for MSG_OOB.  This uncommon use is
+	 * a valid attack scenario which also simplifies this test.
+	 */
+	ASSERT_EQ(0, fcntl(recv_socket, F_SETOWN, child));
+
+	if (variant->sandbox_setown == SANDBOX_AFTER_SETOWN)
+		create_scoped_domain(_metadata, LANDLOCK_SCOPE_SIGNAL);
+
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+
+	/* Waits for the child to send MSG_OOB. */
+	ASSERT_EQ(1, read(pipe_child[0], &buffer_parent, 1));
+	EXPECT_EQ(0, close(pipe_child[0]));
+	ASSERT_EQ(1, recv(recv_socket, &buffer_parent, 1, MSG_OOB));
+	EXPECT_EQ(0, close(recv_socket));
+	EXPECT_EQ(0, close(server_socket));
+	ASSERT_EQ(1, write(pipe_parent[1], ".", 1));
+	EXPECT_EQ(0, close(pipe_parent[1]));
+
+	ASSERT_EQ(child, waitpid(child, &status, 0));
+	if (WIFSIGNALED(status) || !WIFEXITED(status) ||
+	    WEXITSTATUS(status) != EXIT_SUCCESS)
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/scoped_test.c b/tools/testing/selftests/landlock/scoped_test.c
new file mode 100644
index 000000000000..b90f76ed0d9c
--- /dev/null
+++ b/tools/testing/selftests/landlock/scoped_test.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Landlock tests - Common scope restriction
+ *
+ * Copyright © 2024 Tahera Fahimi <fahimitahera@gmail.com>
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/landlock.h>
+#include <sys/prctl.h>
+
+#include "common.h"
+
+#define ACCESS_LAST LANDLOCK_SCOPE_SIGNAL
+
+TEST(ruleset_with_unknown_scope)
+{
+	__u64 scoped_mask;
+
+	for (scoped_mask = 1ULL << 63; scoped_mask != ACCESS_LAST;
+	     scoped_mask >>= 1) {
+		struct landlock_ruleset_attr ruleset_attr = {
+			.scoped = scoped_mask,
+		};
+
+		ASSERT_EQ(-1, landlock_create_ruleset(&ruleset_attr,
+						      sizeof(ruleset_attr), 0));
+		ASSERT_EQ(EINVAL, errno);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/landlock/true.c b/tools/testing/selftests/landlock/true.c
new file mode 100644
index 000000000000..3f9ccbf52783
--- /dev/null
+++ b/tools/testing/selftests/landlock/true.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+int main(void)
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/landlock/wait-pipe-sandbox.c b/tools/testing/selftests/landlock/wait-pipe-sandbox.c
new file mode 100644
index 000000000000..87dbc9164430
--- /dev/null
+++ b/tools/testing/selftests/landlock/wait-pipe-sandbox.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Write in a pipe, wait, sandbox itself, test sandboxing, and wait again.
+ *
+ * Used by audit_exec.flags from audit_test.c
+ *
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <linux/landlock.h>
+#include <linux/prctl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "wrappers.h"
+
+static int sync_with(int pipe_child, int pipe_parent)
+{
+	char buf;
+
+	/* Signals that we are waiting. */
+	if (write(pipe_child, ".", 1) != 1) {
+		perror("Failed to write to first argument");
+		return 1;
+	}
+
+	/* Waits for the parent do its test. */
+	if (read(pipe_parent, &buf, 1) != 1) {
+		perror("Failed to write to the second argument");
+		return 1;
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	const struct landlock_ruleset_attr layer2 = {
+		.handled_access_fs = LANDLOCK_ACCESS_FS_READ_DIR,
+	};
+	const struct landlock_ruleset_attr layer3 = {
+		.scoped = LANDLOCK_SCOPE_SIGNAL,
+	};
+	int err, pipe_child, pipe_parent, ruleset_fd;
+
+	/* The first argument must be the file descriptor number of a pipe. */
+	if (argc != 3) {
+		fprintf(stderr, "Wrong number of arguments (not two)\n");
+		return 1;
+	}
+
+	pipe_child = atoi(argv[1]);
+	pipe_parent = atoi(argv[2]);
+	/* PR_SET_NO_NEW_PRIVS already set by parent. */
+
+	/* First step to test parent's layer1. */
+	err = sync_with(pipe_child, pipe_parent);
+	if (err)
+		return err;
+
+	/* Tries to send a signal, denied by layer1. */
+	if (!kill(getppid(), 0)) {
+		fprintf(stderr, "Successfully sent a signal to the parent");
+		return 1;
+	}
+
+	/* Second step to test parent's layer1 and our layer2. */
+	err = sync_with(pipe_child, pipe_parent);
+	if (err)
+		return err;
+
+	ruleset_fd = landlock_create_ruleset(&layer2, sizeof(layer2), 0);
+	if (ruleset_fd < 0) {
+		perror("Failed to create the layer2 ruleset");
+		return 1;
+	}
+
+	if (landlock_restrict_self(ruleset_fd, 0)) {
+		perror("Failed to restrict self");
+		return 1;
+	}
+	close(ruleset_fd);
+
+	/* Tries to send a signal, denied by layer1. */
+	if (!kill(getppid(), 0)) {
+		fprintf(stderr, "Successfully sent a signal to the parent");
+		return 1;
+	}
+
+	/* Tries to open ., denied by layer2. */
+	if (open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC) >= 0) {
+		fprintf(stderr, "Successfully opened /");
+		return 1;
+	}
+
+	/* Third step to test our layer2 and layer3. */
+	err = sync_with(pipe_child, pipe_parent);
+	if (err)
+		return err;
+
+	ruleset_fd = landlock_create_ruleset(&layer3, sizeof(layer3), 0);
+	if (ruleset_fd < 0) {
+		perror("Failed to create the layer3 ruleset");
+		return 1;
+	}
+
+	if (landlock_restrict_self(ruleset_fd, 0)) {
+		perror("Failed to restrict self");
+		return 1;
+	}
+	close(ruleset_fd);
+
+	/* Tries to open ., denied by layer2. */
+	if (open("/", O_RDONLY | O_DIRECTORY | O_CLOEXEC) >= 0) {
+		fprintf(stderr, "Successfully opened /");
+		return 1;
+	}
+
+	/* Tries to send a signal, denied by layer3. */
+	if (!kill(getppid(), 0)) {
+		fprintf(stderr, "Successfully sent a signal to the parent");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/landlock/wait-pipe.c b/tools/testing/selftests/landlock/wait-pipe.c
new file mode 100644
index 000000000000..0dbcd260a0fa
--- /dev/null
+++ b/tools/testing/selftests/landlock/wait-pipe.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Write in a pipe and wait.
+ *
+ * Used by layout1.umount_sandboxer from fs_test.c
+ *
+ * Copyright © 2024-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+	int pipe_child, pipe_parent;
+	char buf;
+
+	/* The first argument must be the file descriptor number of a pipe. */
+	if (argc != 3) {
+		fprintf(stderr, "Wrong number of arguments (not two)\n");
+		return 1;
+	}
+
+	pipe_child = atoi(argv[1]);
+	pipe_parent = atoi(argv[2]);
+
+	/* Signals that we are waiting. */
+	if (write(pipe_child, ".", 1) != 1) {
+		perror("Failed to write to first argument");
+		return 1;
+	}
+
+	/* Waits for the parent do its test. */
+	if (read(pipe_parent, &buf, 1) != 1) {
+		perror("Failed to write to the second argument");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/landlock/wrappers.h b/tools/testing/selftests/landlock/wrappers.h
new file mode 100644
index 000000000000..65548323e45d
--- /dev/null
+++ b/tools/testing/selftests/landlock/wrappers.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Syscall wrappers
+ *
+ * Copyright © 2017-2020 Mickaël Salaün <mic@digikod.net>
+ * Copyright © 2019-2020 ANSSI
+ * Copyright © 2021-2025 Microsoft Corporation
+ */
+
+#define _GNU_SOURCE
+#include <linux/landlock.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifndef landlock_create_ruleset
+static inline int
+landlock_create_ruleset(const struct landlock_ruleset_attr *const attr,
+			const size_t size, const __u32 flags)
+{
+	return syscall(__NR_landlock_create_ruleset, attr, size, flags);
+}
+#endif
+
+#ifndef landlock_add_rule
+static inline int landlock_add_rule(const int ruleset_fd,
+				    const enum landlock_rule_type rule_type,
+				    const void *const rule_attr,
+				    const __u32 flags)
+{
+	return syscall(__NR_landlock_add_rule, ruleset_fd, rule_type, rule_attr,
+		       flags);
+}
+#endif
+
+#ifndef landlock_restrict_self
+static inline int landlock_restrict_self(const int ruleset_fd,
+					 const __u32 flags)
+{
+	return syscall(__NR_landlock_restrict_self, ruleset_fd, flags);
+}
+#endif
+
+static inline pid_t sys_gettid(void)
+{
+	return syscall(__NR_gettid);
+}
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index ee412bab7ed4..f02cc8a2e4ae 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -1,38 +1,240 @@
 # This mimics the top-level Makefile. We do it explicitly here so that this
 # Makefile can operate with or without the kbuild infrastructure.
+ifneq ($(LLVM),)
+ifneq ($(filter %/,$(LLVM)),)
+LLVM_PREFIX := $(LLVM)
+else ifneq ($(filter -%,$(LLVM)),)
+LLVM_SUFFIX := $(LLVM)
+endif
+
+CLANG := $(LLVM_PREFIX)clang$(LLVM_SUFFIX)
+
+CLANG_TARGET_FLAGS_arm          := arm-linux-gnueabi
+CLANG_TARGET_FLAGS_arm64        := aarch64-linux-gnu
+CLANG_TARGET_FLAGS_hexagon      := hexagon-linux-musl
+CLANG_TARGET_FLAGS_i386         := i386-linux-gnu
+CLANG_TARGET_FLAGS_m68k         := m68k-linux-gnu
+CLANG_TARGET_FLAGS_mips         := mipsel-linux-gnu
+CLANG_TARGET_FLAGS_powerpc      := powerpc64le-linux-gnu
+CLANG_TARGET_FLAGS_riscv        := riscv64-linux-gnu
+CLANG_TARGET_FLAGS_s390         := s390x-linux-gnu
+CLANG_TARGET_FLAGS_x86          := x86_64-linux-gnu
+CLANG_TARGET_FLAGS_x86_64       := x86_64-linux-gnu
+
+# Default to host architecture if ARCH is not explicitly given.
+ifeq ($(ARCH),)
+CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple)
+else
+CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
+endif
+
+ifeq ($(CROSS_COMPILE),)
+ifeq ($(CLANG_TARGET_FLAGS),)
+$(error Specify CROSS_COMPILE or add '--target=' option to lib.mk)
+else
+CLANG_FLAGS     += --target=$(CLANG_TARGET_FLAGS)
+endif # CLANG_TARGET_FLAGS
+else
+CLANG_FLAGS     += --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif # CROSS_COMPILE
+
+# gcc defaults to silence (off) for the following warnings, but clang defaults
+# to the opposite. The warnings are not useful for the kernel itself, which is
+# why they have remained disabled in gcc for the main kernel build. And it is
+# only due to including kernel data structures in the selftests, that we get the
+# warnings from clang. Therefore, disable the warnings for clang builds.
+CFLAGS += -Wno-address-of-packed-member
+CFLAGS += -Wno-gnu-variable-sized-type-not-at-end
+
+CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as
+else
 CC := $(CROSS_COMPILE)gcc
+endif # LLVM
+
+ifeq (0,$(MAKELEVEL))
+    ifeq ($(OUTPUT),)
+	OUTPUT := $(shell pwd)
+	DEFAULT_INSTALL_HDR_PATH := 1
+    endif
+endif
+selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST))))
+top_srcdir = $(selfdir)/../../..
+
+# msg: emit succinct information message describing current building step
+# $1 - generic step name (e.g., CC, LINK, etc);
+# $2 - optional "flavor" specifier; if provided, will be emitted as [flavor];
+# $3 - target (assumed to be file); only file name will be emitted;
+# $4 - optional extra arg, emitted as-is, if provided.
+ifeq ($(V),1)
+Q =
+msg =
+else
+Q = @
+msg = @printf '  %-8s%s %s%s\n' "$(1)" "$(if $(2), [$(2)])" "$(notdir $(3))" "$(if $(4), $(4))";
+MAKEFLAGS += --no-print-directory
+endif
+
+ifeq ($(KHDR_INCLUDES),)
+KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include
+endif
+
+# In order to use newer items that haven't yet been added to the user's system
+# header files, add $(TOOLS_INCLUDES) to the compiler invocation in each
+# each selftest.
+# You may need to add files to that location, or to refresh an existing file. In
+# order to do that, run "make headers" from $(top_srcdir), then copy the
+# header file that you want from $(top_srcdir)/usr/include/... , to the matching
+# subdir in $(TOOLS_INCLUDE).
+TOOLS_INCLUDES := -isystem $(top_srcdir)/tools/include/uapi
+
+# The following are built by lib.mk common compile rules.
+# TEST_CUSTOM_PROGS should be used by tests that require
+# custom build rule and prevent common build rule use.
+# TEST_PROGS are for test shell scripts.
+# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
+# and install targets. Common clean doesn't touch them.
+TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
+TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
+TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
+
+all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) \
+	$(if $(TEST_GEN_MODS_DIR),gen_mods_dir)
 
 define RUN_TESTS
-	@for TEST in $(TEST_PROGS); do \
-		(./$$TEST && echo "selftests: $$TEST [PASS]") || echo "selftests: $$TEST [FAIL]"; \
-	done;
+	BASE_DIR="$(selfdir)";			\
+	. $(selfdir)/kselftest/runner.sh;	\
+	if [ "X$(summary)" != "X" ]; then       \
+		per_test_logging=1;		\
+	fi;                                     \
+	run_many $(1)
+endef
+
+define INSTALL_INCLUDES
+	$(if $(TEST_INCLUDES), \
+		relative_files=""; \
+		for entry in $(TEST_INCLUDES); do \
+			entry_dir=$$(readlink -e "$$(dirname "$$entry")"); \
+			entry_name=$$(basename "$$entry"); \
+			relative_dir=$${entry_dir#"$$SRC_PATH"/}; \
+			if [ "$$relative_dir" = "$$entry_dir" ]; then \
+				echo "Error: TEST_INCLUDES entry \"$$entry\" not located inside selftests directory ($$SRC_PATH)" >&2; \
+				exit 1; \
+			fi; \
+			relative_files="$$relative_files $$relative_dir/$$entry_name"; \
+		done; \
+		cd $(SRC_PATH) && rsync -aR $$relative_files $(OBJ_PATH)/ \
+	)
 endef
 
 run_tests: all
-	$(RUN_TESTS)
+ifdef building_out_of_srctree
+	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)$(TEST_GEN_MODS_DIR)" != "X" ]; then \
+		rsync -aq --copy-unsafe-links $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(TEST_GEN_MODS_DIR) $(OUTPUT); \
+	fi
+	@$(INSTALL_INCLUDES)
+	@if [ "X$(TEST_PROGS)" != "X" ]; then \
+		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) \
+				  $(addprefix $(OUTPUT)/,$(TEST_PROGS))) ; \
+	else \
+		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS)); \
+	fi
+else
+	@$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
+endif
+
+gen_mods_dir:
+	$(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR)
+
+clean_mods_dir:
+	$(Q)$(MAKE) -C $(TEST_GEN_MODS_DIR) clean
+
+define INSTALL_SINGLE_RULE
+	$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH))
+	$(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST) $(INSTALL_PATH)/)
+endef
+
+define INSTALL_MODS_RULE
+	$(if $(INSTALL_LIST),@mkdir -p $(INSTALL_PATH)/$(INSTALL_LIST))
+	$(if $(INSTALL_LIST),rsync -a --copy-unsafe-links $(INSTALL_LIST)/*.ko $(INSTALL_PATH)/$(INSTALL_LIST))
+endef
 
 define INSTALL_RULE
-	mkdir -p $(INSTALL_PATH)
-	@for TEST_DIR in $(TEST_DIRS); do\
-		cp -r $$TEST_DIR $(INSTALL_PATH); \
-	done;
-	install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
+	$(eval INSTALL_LIST = $(TEST_PROGS)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_FILES)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_GEN_PROGS)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_CUSTOM_PROGS)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_GEN_PROGS_EXTENDED)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(TEST_GEN_FILES)) $(INSTALL_SINGLE_RULE)
+	$(eval INSTALL_LIST = $(notdir $(TEST_GEN_MODS_DIR))) $(INSTALL_MODS_RULE)
+	$(eval INSTALL_LIST = $(wildcard config settings)) $(INSTALL_SINGLE_RULE)
 endef
 
 install: all
 ifdef INSTALL_PATH
 	$(INSTALL_RULE)
+	$(INSTALL_INCLUDES)
 else
 	$(error Error: set INSTALL_PATH to use install)
 endif
 
-define EMIT_TESTS
-	@for TEST in $(TEST_PROGS); do \
-		echo "(./$$TEST && echo \"selftests: $$TEST [PASS]\") || echo \"selftests: $$TEST [FAIL]\""; \
-	done;
+emit_tests:
+	for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
+		BASENAME_TEST=`basename $$TEST`;	\
+		echo "$(COLLECTION):$$BASENAME_TEST";	\
+	done
+
+# define if isn't already. It is undefined in make O= case.
+ifeq ($(RM),)
+RM := rm -f
+endif
+
+define CLEAN
+	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 endef
 
-emit_tests:
-	$(EMIT_TESTS)
+clean: $(if $(TEST_GEN_MODS_DIR),clean_mods_dir)
+	$(CLEAN)
+
+# Build with _GNU_SOURCE by default
+CFLAGS += -D_GNU_SOURCE=
+
+# Additional include paths needed by kselftest.h and local headers
+CFLAGS += -I${top_srcdir}/tools/testing/selftests
+
+# Enables to extend CFLAGS and LDFLAGS from command line, e.g.
+# make USERCFLAGS=-Werror USERLDFLAGS=-static
+CFLAGS += $(USERCFLAGS)
+LDFLAGS += $(USERLDFLAGS)
+
+# When make O= with kselftest target from main level
+# the following aren't defined.
+#
+ifdef building_out_of_srctree
+LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
+LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+endif
+
+# Selftest makefiles can override those targets by setting
+# OVERRIDE_TARGETS = 1.
+ifeq ($(OVERRIDE_TARGETS),)
+LOCAL_HDRS += $(selfdir)/kselftest_harness.h $(selfdir)/kselftest.h
+$(OUTPUT)/%:%.c $(LOCAL_HDRS)
+	$(call msg,CC,,$@)
+	$(Q)$(LINK.c) $(filter-out $(LOCAL_HDRS),$^) $(LDLIBS) -o $@
+
+$(OUTPUT)/%.o:%.S
+	$(COMPILE.S) $^ -o $@
+
+$(OUTPUT)/%:%.S
+	$(LINK.S) $^ $(LDLIBS) -o $@
+endif
+
+# Extract the expected header directory
+khdr_output := $(patsubst %/usr/include,%,$(filter %/usr/include,$(KHDR_INCLUDES)))
+
+headers:
+	$(Q)$(MAKE) -f $(top_srcdir)/Makefile -C $(khdr_output) headers
 
-.PHONY: run_tests all clean install emit_tests
+.PHONY: run_tests all clean install emit_tests gen_mods_dir clean_mods_dir headers
diff --git a/tools/testing/selftests/lib/Makefile b/tools/testing/selftests/lib/Makefile
new file mode 100644
index 000000000000..f876bf4744e1
--- /dev/null
+++ b/tools/testing/selftests/lib/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for lib/ function selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+TEST_PROGS := bitmap.sh
+include ../lib.mk
diff --git a/tools/testing/selftests/lib/bitmap.sh b/tools/testing/selftests/lib/bitmap.sh
new file mode 100755
index 000000000000..00a416fbc0ef
--- /dev/null
+++ b/tools/testing/selftests/lib/bitmap.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+$(dirname $0)/../kselftest/module.sh "bitmap" test_bitmap
diff --git a/tools/testing/selftests/lib/config b/tools/testing/selftests/lib/config
new file mode 100644
index 000000000000..377b3699ff31
--- /dev/null
+++ b/tools/testing/selftests/lib/config
@@ -0,0 +1,3 @@
+CONFIG_TEST_BITMAP=m
+CONFIG_PRIME_NUMBERS=m
+CONFIG_TEST_BITOPS=m
diff --git a/tools/testing/selftests/livepatch/.gitignore b/tools/testing/selftests/livepatch/.gitignore
new file mode 100644
index 000000000000..f1e9c2a20e99
--- /dev/null
+++ b/tools/testing/selftests/livepatch/.gitignore
@@ -0,0 +1 @@
+test_klp-call_getpid
diff --git a/tools/testing/selftests/livepatch/Makefile b/tools/testing/selftests/livepatch/Makefile
new file mode 100644
index 000000000000..a080eb54a215
--- /dev/null
+++ b/tools/testing/selftests/livepatch/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_FILES := test_klp-call_getpid
+TEST_GEN_MODS_DIR := test_modules
+TEST_PROGS_EXTENDED := functions.sh
+TEST_PROGS := \
+	test-livepatch.sh \
+	test-callbacks.sh \
+	test-shadow-vars.sh \
+	test-state.sh \
+	test-ftrace.sh \
+	test-sysfs.sh \
+	test-syscall.sh \
+	test-kprobe.sh
+
+TEST_FILES := settings
+
+include ../lib.mk
diff --git a/tools/testing/selftests/livepatch/README b/tools/testing/selftests/livepatch/README
new file mode 100644
index 000000000000..d2035dd64a2b
--- /dev/null
+++ b/tools/testing/selftests/livepatch/README
@@ -0,0 +1,56 @@
+====================
+Livepatch Self Tests
+====================
+
+This is a small set of sanity tests for the kernel livepatching.
+
+The test suite loads and unloads several test kernel modules to verify
+livepatch behavior.  Debug information is logged to the kernel's message
+buffer and parsed for expected messages.  (Note: the tests will compare
+the message buffer for only the duration of each individual test.)
+
+
+Config
+------
+
+Set CONFIG_LIVEPATCH=y option and it's prerequisites.
+
+
+Building the tests
+------------------
+
+To only build the tests without running them, run:
+
+  % make -C tools/testing/selftests/livepatch
+
+The command above will compile all test modules and test programs, making them
+ready to be packaged if so desired.
+
+Running the tests
+-----------------
+
+Test kernel modules are built before running the livepatch selftests.  The
+modules are located under test_modules directory, and are built as out-of-tree
+modules.  This is specially useful since the same sources can be built and
+tested on systems with different kABI, ensuring they the tests are backwards
+compatible.  The modules will be loaded by the test scripts using insmod.
+
+To run the livepatch selftests, from the top of the kernel source tree:
+
+  % make -C tools/testing/selftests TARGETS=livepatch run_tests
+
+or
+
+  % make kselftest TARGETS=livepatch
+
+
+Adding tests
+------------
+
+See the common functions.sh file for the existing collection of utility
+functions, most importantly setup_config(), start_test() and
+check_result().  The latter function greps the kernel's ring buffer for
+"livepatch:" and "test_klp" strings, so tests be sure to include one of
+those strings for result comparison.  Other utility functions include
+general module loading and livepatch loading helpers (waiting for patch
+transitions, sysfs entries, etc.)
diff --git a/tools/testing/selftests/livepatch/config b/tools/testing/selftests/livepatch/config
new file mode 100644
index 000000000000..e88bf518a23a
--- /dev/null
+++ b/tools/testing/selftests/livepatch/config
@@ -0,0 +1,2 @@
+CONFIG_LIVEPATCH=y
+CONFIG_DYNAMIC_DEBUG=y
diff --git a/tools/testing/selftests/livepatch/functions.sh b/tools/testing/selftests/livepatch/functions.sh
new file mode 100644
index 000000000000..8ec0cb64ad94
--- /dev/null
+++ b/tools/testing/selftests/livepatch/functions.sh
@@ -0,0 +1,407 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+# Shell functions for the rest of the scripts.
+
+MAX_RETRIES=600
+RETRY_INTERVAL=".1"	# seconds
+SYSFS_KERNEL_DIR="/sys/kernel"
+SYSFS_KLP_DIR="$SYSFS_KERNEL_DIR/livepatch"
+SYSFS_DEBUG_DIR="$SYSFS_KERNEL_DIR/debug"
+SYSFS_KPROBES_DIR="$SYSFS_DEBUG_DIR/kprobes"
+if [[ -e /sys/kernel/tracing/trace ]]; then
+	SYSFS_TRACING_DIR="$SYSFS_KERNEL_DIR/tracing"
+else
+	SYSFS_TRACING_DIR="$SYSFS_DEBUG_DIR/tracing"
+fi
+
+# Kselftest framework requirement - SKIP code is 4
+ksft_skip=4
+
+# log(msg) - write message to kernel log
+#	msg - insightful words
+function log() {
+	echo "$1" > /dev/kmsg
+}
+
+# skip(msg) - testing can't proceed
+#	msg - explanation
+function skip() {
+	log "SKIP: $1"
+	echo "SKIP: $1" >&2
+	exit $ksft_skip
+}
+
+# root test
+function is_root() {
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo "skip all tests: must be run as root" >&2
+		exit $ksft_skip
+	fi
+}
+
+# Check if we can compile the modules before loading them
+function has_kdir() {
+	if [ -z "$KDIR" ]; then
+		KDIR="/lib/modules/$(uname -r)/build"
+	fi
+
+	if [ ! -d "$KDIR" ]; then
+		echo "skip all tests: KDIR ($KDIR) not available to compile modules."
+		exit $ksft_skip
+	fi
+}
+
+# die(msg) - game over, man
+#	msg - dying words
+function die() {
+	log "ERROR: $1"
+	echo "ERROR: $1" >&2
+	exit 1
+}
+
+function push_config() {
+	DYNAMIC_DEBUG=$(grep '^kernel/livepatch' "$SYSFS_DEBUG_DIR/dynamic_debug/control" | \
+			awk -F'[: ]' '{print "file " $1 " line " $2 " " $4}')
+	FTRACE_ENABLED=$(sysctl --values kernel.ftrace_enabled)
+	KPROBE_ENABLED=$(cat "$SYSFS_KPROBES_DIR/enabled")
+	TRACING_ON=$(cat "$SYSFS_TRACING_DIR/tracing_on")
+	CURRENT_TRACER=$(cat "$SYSFS_TRACING_DIR/current_tracer")
+	FTRACE_FILTER=$(cat "$SYSFS_TRACING_DIR/set_ftrace_filter")
+}
+
+function pop_config() {
+	if [[ -n "$DYNAMIC_DEBUG" ]]; then
+		echo -n "$DYNAMIC_DEBUG" > "$SYSFS_DEBUG_DIR/dynamic_debug/control"
+	fi
+	if [[ -n "$FTRACE_ENABLED" ]]; then
+		sysctl kernel.ftrace_enabled="$FTRACE_ENABLED" &> /dev/null
+	fi
+	if [[ -n "$KPROBE_ENABLED" ]]; then
+		echo "$KPROBE_ENABLED" > "$SYSFS_KPROBES_DIR/enabled"
+	fi
+	if [[ -n "$TRACING_ON" ]]; then
+		echo "$TRACING_ON" > "$SYSFS_TRACING_DIR/tracing_on"
+	fi
+	if [[ -n "$CURRENT_TRACER" ]]; then
+		echo "$CURRENT_TRACER" > "$SYSFS_TRACING_DIR/current_tracer"
+	fi
+	if [[ -n "$FTRACE_FILTER" ]]; then
+		echo "$FTRACE_FILTER" \
+			| sed -e "/#### all functions enabled ####/d" \
+			> "$SYSFS_TRACING_DIR/set_ftrace_filter"
+	fi
+}
+
+function set_dynamic_debug() {
+        cat <<-EOF > "$SYSFS_DEBUG_DIR/dynamic_debug/control"
+		file kernel/livepatch/* +p
+		func klp_try_switch_task -p
+		EOF
+}
+
+function set_ftrace_enabled() {
+	local can_fail=0
+	if [[ "$1" == "--fail" ]] ; then
+		can_fail=1
+		shift
+	fi
+
+	local err=$(sysctl -q kernel.ftrace_enabled="$1" 2>&1)
+	local result=$(sysctl --values kernel.ftrace_enabled)
+
+	if [[ "$result" != "$1" ]] ; then
+		if [[ $can_fail -eq 1 ]] ; then
+			echo "livepatch: $err" | sed 's#/proc/sys/kernel/#kernel.#' > /dev/kmsg
+			return
+		fi
+
+		skip "failed to set kernel.ftrace_enabled = $1"
+	fi
+
+	echo "livepatch: kernel.ftrace_enabled = $result" > /dev/kmsg
+}
+
+function cleanup() {
+	pop_config
+}
+
+# setup_config - save the current config and set a script exit trap that
+#		 restores the original config.  Setup the dynamic debug
+#		 for verbose livepatching output and turn on
+#		 the ftrace_enabled sysctl.
+function setup_config() {
+	is_root
+	has_kdir
+	push_config
+	set_dynamic_debug
+	set_ftrace_enabled 1
+	trap cleanup EXIT INT TERM HUP
+}
+
+# loop_until(cmd) - loop a command until it is successful or $MAX_RETRIES,
+#		    sleep $RETRY_INTERVAL between attempts
+#	cmd - command and its arguments to run
+function loop_until() {
+	local cmd="$*"
+	local i=0
+	while true; do
+		eval "$cmd" && return 0
+		[[ $((i++)) -eq $MAX_RETRIES ]] && return 1
+		sleep $RETRY_INTERVAL
+	done
+}
+
+function is_livepatch_mod() {
+	local mod="$1"
+
+	if [[ ! -f "test_modules/$mod.ko" ]]; then
+		die "Can't find \"test_modules/$mod.ko\", try \"make\""
+	fi
+
+	if [[ $(modinfo "test_modules/$mod.ko" | awk '/^livepatch:/{print $NF}') == "Y" ]]; then
+		return 0
+	fi
+
+	return 1
+}
+
+function __load_mod() {
+	local mod="$1"; shift
+
+	local msg="% insmod test_modules/$mod.ko $*"
+	log "${msg%% }"
+	ret=$(insmod "test_modules/$mod.ko" "$@" 2>&1)
+	if [[ "$ret" != "" ]]; then
+		die "$ret"
+	fi
+
+	# Wait for module in sysfs ...
+	loop_until '[[ -e "/sys/module/$mod" ]]' ||
+		die "failed to load module $mod"
+}
+
+
+# load_mod(modname, params) - load a kernel module
+#	modname - module name to load
+#	params  - module parameters to pass to insmod
+function load_mod() {
+	local mod="$1"; shift
+
+	is_livepatch_mod "$mod" &&
+		die "use load_lp() to load the livepatch module $mod"
+
+	__load_mod "$mod" "$@"
+}
+
+# load_lp_nowait(modname, params) - load a kernel module with a livepatch
+#			but do not wait on until the transition finishes
+#	modname - module name to load
+#	params  - module parameters to pass to insmod
+function load_lp_nowait() {
+	local mod="$1"; shift
+
+	is_livepatch_mod "$mod" ||
+		die "module $mod is not a livepatch"
+
+	__load_mod "$mod" "$@"
+
+	# Wait for livepatch in sysfs ...
+	loop_until '[[ -e "$SYSFS_KLP_DIR/$mod" ]]' ||
+		die "failed to load module $mod (sysfs)"
+}
+
+# load_lp(modname, params) - load a kernel module with a livepatch
+#	modname - module name to load
+#	params  - module parameters to pass to insmod
+function load_lp() {
+	local mod="$1"; shift
+
+	load_lp_nowait "$mod" "$@"
+
+	# Wait until the transition finishes ...
+	loop_until 'grep -q '^0$' $SYSFS_KLP_DIR/$mod/transition' ||
+		die "failed to complete transition"
+}
+
+# load_failing_mod(modname, params) - load a kernel module, expect to fail
+#	modname - module name to load
+#	params  - module parameters to pass to insmod
+function load_failing_mod() {
+	local mod="$1"; shift
+
+	local msg="% insmod test_modules/$mod.ko $*"
+	log "${msg%% }"
+	ret=$(insmod "test_modules/$mod.ko" "$@" 2>&1)
+	if [[ "$ret" == "" ]]; then
+		die "$mod unexpectedly loaded"
+	fi
+	log "$ret"
+}
+
+# unload_mod(modname) - unload a kernel module
+#	modname - module name to unload
+function unload_mod() {
+	local mod="$1"
+
+	# Wait for module reference count to clear ...
+	loop_until '[[ $(cat "/sys/module/$mod/refcnt") == "0" ]]' ||
+		die "failed to unload module $mod (refcnt)"
+
+	log "% rmmod $mod"
+	ret=$(rmmod "$mod" 2>&1)
+	if [[ "$ret" != "" ]]; then
+		die "$ret"
+	fi
+
+	# Wait for module in sysfs ...
+	loop_until '[[ ! -e "/sys/module/$mod" ]]' ||
+		die "failed to unload module $mod (/sys/module)"
+}
+
+# unload_lp(modname) - unload a kernel module with a livepatch
+#	modname - module name to unload
+function unload_lp() {
+	unload_mod "$1"
+}
+
+# disable_lp(modname) - disable a livepatch
+#	modname - module name to unload
+function disable_lp() {
+	local mod="$1"
+
+	log "% echo 0 > $SYSFS_KLP_DIR/$mod/enabled"
+	echo 0 > "$SYSFS_KLP_DIR/$mod/enabled"
+
+	# Wait until the transition finishes and the livepatch gets
+	# removed from sysfs...
+	loop_until '[[ ! -e "$SYSFS_KLP_DIR/$mod" ]]' ||
+		die "failed to disable livepatch $mod"
+}
+
+# set_pre_patch_ret(modname, pre_patch_ret)
+#	modname - module name to set
+#	pre_patch_ret - new pre_patch_ret value
+function set_pre_patch_ret {
+	local mod="$1"; shift
+	local ret="$1"
+
+	log "% echo $ret > /sys/module/$mod/parameters/pre_patch_ret"
+	echo "$ret" > /sys/module/"$mod"/parameters/pre_patch_ret
+
+	# Wait for sysfs value to hold ...
+	loop_until '[[ $(cat "/sys/module/$mod/parameters/pre_patch_ret") == "$ret" ]]' ||
+		die "failed to set pre_patch_ret parameter for $mod module"
+}
+
+function start_test {
+	local test="$1"
+
+	# Dump something unique into the dmesg log, then stash the entry
+	# in LAST_DMESG.  The check_result() function will use it to
+	# find new kernel messages since the test started.
+	local last_dmesg_msg="livepatch kselftest timestamp: $(date --rfc-3339=ns)"
+	log "$last_dmesg_msg"
+	loop_until 'dmesg | grep -q "$last_dmesg_msg"' ||
+		die "buffer busy? can't find canary dmesg message: $last_dmesg_msg"
+	LAST_DMESG=$(dmesg | grep "$last_dmesg_msg")
+
+	echo -n "TEST: $test ... "
+	log "===== TEST: $test ====="
+}
+
+# check_result() - verify dmesg output
+#	TODO - better filter, out of order msgs, etc?
+function check_result {
+	local expect="$*"
+	local result
+
+	# Test results include any new dmesg entry since LAST_DMESG, then:
+	# - include lines matching keywords
+	# - exclude lines matching keywords
+	# - filter out dmesg timestamp prefixes
+	result=$(dmesg | awk -v last_dmesg="$LAST_DMESG" 'p; $0 == last_dmesg { p=1 }' | \
+		 grep -e 'livepatch:' -e 'test_klp' | \
+		 grep -v '\(tainting\|taints\) kernel' | \
+		 sed 's/^\[[ 0-9.]*\] //' | \
+		 sed 's/^\[[ ]*[CT][0-9]*\] //')
+
+	if [[ "$expect" == "$result" ]] ; then
+		echo "ok"
+	elif [[ "$result" == "" ]] ; then
+		echo -e "not ok\n\nbuffer overrun? can't find canary dmesg entry: $LAST_DMESG\n"
+		die "livepatch kselftest(s) failed"
+	else
+		echo -e "not ok\n\n$(diff -upr --label expected --label result <(echo "$expect") <(echo "$result"))\n"
+		die "livepatch kselftest(s) failed"
+	fi
+}
+
+# check_sysfs_rights(modname, rel_path, expected_rights) - check sysfs
+# path permissions
+#	modname - livepatch module creating the sysfs interface
+#	rel_path - relative path of the sysfs interface
+#	expected_rights - expected access rights
+function check_sysfs_rights() {
+	local mod="$1"; shift
+	local rel_path="$1"; shift
+	local expected_rights="$1"; shift
+
+	local path="$SYSFS_KLP_DIR/$mod/$rel_path"
+	local rights=$(/bin/stat --format '%A' "$path")
+	if test "$rights" != "$expected_rights" ; then
+		die "Unexpected access rights of $path: $expected_rights vs. $rights"
+	fi
+}
+
+# check_sysfs_value(modname, rel_path, expected_value) - check sysfs value
+#	modname - livepatch module creating the sysfs interface
+#	rel_path - relative path of the sysfs interface
+#	expected_value - expected value read from the file
+function check_sysfs_value() {
+	local mod="$1"; shift
+	local rel_path="$1"; shift
+	local expected_value="$1"; shift
+
+	local path="$SYSFS_KLP_DIR/$mod/$rel_path"
+	local value=`cat $path`
+	if test "$value" != "$expected_value" ; then
+		die "Unexpected value in $path: $expected_value vs. $value"
+	fi
+}
+
+# cleanup_tracing() - stop and clean up function tracing
+function cleanup_tracing() {
+	echo 0 > "$SYSFS_TRACING_DIR/tracing_on"
+	echo "" > "$SYSFS_TRACING_DIR/set_ftrace_filter"
+	echo "nop" > "$SYSFS_TRACING_DIR/current_tracer"
+	echo "" > "$SYSFS_TRACING_DIR/trace"
+}
+
+# trace_function(function) - start tracing of a function
+#	function - to be traced function
+function trace_function() {
+	local function="$1"; shift
+
+	cleanup_tracing
+
+	echo "function" > "$SYSFS_TRACING_DIR/current_tracer"
+	echo "$function" > "$SYSFS_TRACING_DIR/set_ftrace_filter"
+	echo 1 > "$SYSFS_TRACING_DIR/tracing_on"
+}
+
+# check_traced_functions(functions...) - check whether each function appeared in the trace log
+#	functions - list of functions to be checked
+function check_traced_functions() {
+	local function
+
+	for function in "$@"; do
+		if ! grep -Fwq "$function" "$SYSFS_TRACING_DIR/trace" ; then
+			die "Function ($function) did not appear in the trace"
+		fi
+	done
+
+	cleanup_tracing
+}
diff --git a/tools/testing/selftests/livepatch/settings b/tools/testing/selftests/livepatch/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/livepatch/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/livepatch/test-callbacks.sh b/tools/testing/selftests/livepatch/test-callbacks.sh
new file mode 100755
index 000000000000..2a03deb26a12
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-callbacks.sh
@@ -0,0 +1,553 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+. $(dirname $0)/functions.sh
+
+MOD_LIVEPATCH=test_klp_callbacks_demo
+MOD_LIVEPATCH2=test_klp_callbacks_demo2
+MOD_TARGET=test_klp_callbacks_mod
+MOD_TARGET_BUSY=test_klp_callbacks_busy
+
+setup_config
+
+
+# Test a combination of loading a kernel module and a livepatch that
+# patches a function in the first module.  Load the target module
+# before the livepatch module.  Unload them in the same order.
+#
+# - On livepatch enable, before the livepatch transition starts,
+#   pre-patch callbacks are executed for vmlinux and $MOD_TARGET (those
+#   klp_objects currently loaded).  After klp_objects are patched
+#   according to the klp_patch, their post-patch callbacks run and the
+#   transition completes.
+#
+# - Similarly, on livepatch disable, pre-patch callbacks run before the
+#   unpatching transition starts.  klp_objects are reverted, post-patch
+#   callbacks execute and the transition completes.
+
+start_test "target module before livepatch"
+
+load_mod $MOD_TARGET
+load_lp $MOD_LIVEPATCH
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+unload_mod $MOD_TARGET
+
+check_result "% insmod test_modules/$MOD_TARGET.ko
+$MOD_TARGET: ${MOD_TARGET}_init
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit"
+
+
+# This test is similar to the previous test, but (un)load the livepatch
+# module before the target kernel module.  This tests the livepatch
+# core's module_coming handler.
+#
+# - On livepatch enable, only pre/post-patch callbacks are executed for
+#   currently loaded klp_objects, in this case, vmlinux.
+#
+# - When a targeted module is subsequently loaded, only its
+#   pre/post-patch callbacks are executed.
+#
+# - On livepatch disable, all currently loaded klp_objects' (vmlinux and
+#   $MOD_TARGET) pre/post-unpatch callbacks are executed.
+
+start_test "module_coming notifier"
+
+load_lp $MOD_LIVEPATCH
+load_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+unload_mod $MOD_TARGET
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_TARGET.ko
+livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_TARGET: ${MOD_TARGET}_init
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit"
+
+
+# Test loading the livepatch after a targeted kernel module, then unload
+# the kernel module before disabling the livepatch.  This tests the
+# livepatch core's module_going handler.
+#
+# - First load a target module, then the livepatch.
+#
+# - When a target module is unloaded, the livepatch is only reverted
+#   from that klp_object ($MOD_TARGET).  As such, only its pre and
+#   post-unpatch callbacks are executed when this occurs.
+#
+# - When the livepatch is disabled, pre and post-unpatch callbacks are
+#   run for the remaining klp_object, vmlinux.
+
+start_test "module_going notifier"
+
+load_mod $MOD_TARGET
+load_lp $MOD_LIVEPATCH
+unload_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_TARGET.ko
+$MOD_TARGET: ${MOD_TARGET}_init
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': patching complete
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# This test is similar to the previous test, however the livepatch is
+# loaded first.  This tests the livepatch core's module_coming and
+# module_going handlers.
+#
+# - First load the livepatch.
+#
+# - When a targeted kernel module is subsequently loaded, only its
+#   pre/post-patch callbacks are executed.
+#
+# - When the target module is unloaded, the livepatch is only reverted
+#   from the $MOD_TARGET klp_object.  As such, only pre and
+#   post-unpatch callbacks are executed when this occurs.
+
+start_test "module_coming and module_going notifiers"
+
+load_lp $MOD_LIVEPATCH
+load_mod $MOD_TARGET
+unload_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_TARGET.ko
+livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_TARGET: ${MOD_TARGET}_init
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# A simple test of loading a livepatch without one of its patch target
+# klp_objects ever loaded ($MOD_TARGET).
+#
+# - Load the livepatch.
+#
+# - As expected, only pre/post-(un)patch handlers are executed for
+#   vmlinux.
+
+start_test "target module not present"
+
+load_lp $MOD_LIVEPATCH
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# Test a scenario where a vmlinux pre-patch callback returns a non-zero
+# status (ie, failure).
+#
+# - First load a target module.
+#
+# - Load the livepatch module, setting its 'pre_patch_ret' value to -19
+#   (-ENODEV).  When its vmlinux pre-patch callback executes, this
+#   status code will propagate back to the module-loading subsystem.
+#   The result is that the insmod command refuses to load the livepatch
+#   module.
+
+start_test "pre-patch callback -ENODEV"
+
+load_mod $MOD_TARGET
+load_failing_mod $MOD_LIVEPATCH pre_patch_ret=-19
+unload_mod $MOD_TARGET
+
+check_result "% insmod test_modules/$MOD_TARGET.ko
+$MOD_TARGET: ${MOD_TARGET}_init
+% insmod test_modules/$MOD_LIVEPATCH.ko pre_patch_ret=-19
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: pre-patch callback failed for object 'vmlinux'
+livepatch: failed to enable patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: No such device
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit"
+
+
+# Similar to the previous test, setup a livepatch such that its vmlinux
+# pre-patch callback returns success.  However, when a targeted kernel
+# module is later loaded, have the livepatch return a failing status
+# code.
+#
+# - Load the livepatch, vmlinux pre-patch callback succeeds.
+#
+# - Set a trap so subsequent pre-patch callbacks to this livepatch will
+#   return -ENODEV.
+#
+# - The livepatch pre-patch callback for subsequently loaded target
+#   modules will return failure, so the module loader refuses to load
+#   the kernel module.  No post-patch or pre/post-unpatch callbacks are
+#   executed for this klp_object.
+#
+# - Pre/post-unpatch callbacks are run for the vmlinux klp_object.
+
+start_test "module_coming + pre-patch callback -ENODEV"
+
+load_lp $MOD_LIVEPATCH
+set_pre_patch_ret $MOD_LIVEPATCH -19
+load_failing_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo -19 > /sys/module/$MOD_LIVEPATCH/parameters/pre_patch_ret
+% insmod test_modules/$MOD_TARGET.ko
+livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+livepatch: pre-patch callback failed for object '$MOD_TARGET'
+livepatch: patch '$MOD_LIVEPATCH' failed for module '$MOD_TARGET', refusing to load module '$MOD_TARGET'
+insmod: ERROR: could not insert module test_modules/$MOD_TARGET.ko: No such device
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# Test loading multiple targeted kernel modules.  This test-case is
+# mainly for comparing with the next test-case.
+#
+# - Load a target "busy" kernel module which kicks off a worker function
+#   that immediately exits.
+#
+# - Proceed with loading the livepatch and another ordinary target
+#   module.  Post-patch callbacks are executed and the transition
+#   completes quickly.
+
+start_test "multiple target modules"
+
+load_mod $MOD_TARGET_BUSY block_transition=N
+load_lp $MOD_LIVEPATCH
+load_mod $MOD_TARGET
+unload_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+unload_mod $MOD_TARGET_BUSY
+
+check_result "% insmod test_modules/$MOD_TARGET_BUSY.ko block_transition=N
+$MOD_TARGET_BUSY: ${MOD_TARGET_BUSY}_init
+$MOD_TARGET_BUSY: busymod_work_func enter
+$MOD_TARGET_BUSY: busymod_work_func exit
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_TARGET.ko
+livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_LIVEPATCH: post_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_TARGET: ${MOD_TARGET}_init
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: pre_unpatch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH
+% rmmod $MOD_TARGET_BUSY
+$MOD_TARGET_BUSY: ${MOD_TARGET_BUSY}_exit"
+
+
+# A similar test as the previous one, but force the "busy" kernel module
+# to block the livepatch transition.
+#
+# The livepatching core will refuse to patch a task that is currently
+# executing a to-be-patched function -- the consistency model stalls the
+# current patch transition until this safety-check is met.  Test a
+# scenario where one of a livepatch's target klp_objects sits on such a
+# function for a long time.  Meanwhile, load and unload other target
+# kernel modules while the livepatch transition is in progress.
+#
+# - Load the "busy" kernel module, this time make its work function loop
+#
+# - Meanwhile, the livepatch is loaded.  Notice that the patch
+#   transition does not complete as the targeted "busy" module is
+#   sitting on a to-be-patched function.
+#
+# - Load a second target module (this one is an ordinary idle kernel
+#   module).  Note that *no* post-patch callbacks will be executed while
+#   the livepatch is still in transition.
+#
+# - Request an unload of the simple kernel module.  The patch is still
+#   transitioning, so its pre-unpatch callbacks are skipped.
+#
+# - Finally the livepatch is disabled.  Since none of the patch's
+#   klp_object's post-patch callbacks executed, the remaining
+#   klp_object's pre-unpatch callbacks are skipped.
+
+start_test "busy target module"
+
+load_mod $MOD_TARGET_BUSY block_transition=Y
+load_lp_nowait $MOD_LIVEPATCH
+
+# Wait until the livepatch reports in-transition state, i.e. that it's
+# stalled on $MOD_TARGET_BUSY::busymod_work_func()
+loop_until 'grep -q '^1$' $SYSFS_KLP_DIR/$MOD_LIVEPATCH/transition' ||
+	die "failed to stall transition"
+
+load_mod $MOD_TARGET
+unload_mod $MOD_TARGET
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+unload_mod $MOD_TARGET_BUSY
+
+check_result "% insmod test_modules/$MOD_TARGET_BUSY.ko block_transition=Y
+$MOD_TARGET_BUSY: ${MOD_TARGET_BUSY}_init
+$MOD_TARGET_BUSY: busymod_work_func enter
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+% insmod test_modules/$MOD_TARGET.ko
+livepatch: applying patch '$MOD_LIVEPATCH' to loading module '$MOD_TARGET'
+$MOD_LIVEPATCH: pre_patch_callback: $MOD_TARGET -> [MODULE_STATE_COMING] Full formed, running module_init
+$MOD_TARGET: ${MOD_TARGET}_init
+% rmmod $MOD_TARGET
+$MOD_TARGET: ${MOD_TARGET}_exit
+livepatch: reverting patch '$MOD_LIVEPATCH' on unloading module '$MOD_TARGET'
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET -> [MODULE_STATE_GOING] Going away
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': reversing transition from patching to unpatching
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: post_unpatch_callback: $MOD_TARGET_BUSY -> [MODULE_STATE_LIVE] Normal state
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH
+% rmmod $MOD_TARGET_BUSY
+$MOD_TARGET_BUSY: busymod_work_func exit
+$MOD_TARGET_BUSY: ${MOD_TARGET_BUSY}_exit"
+
+
+# Test loading multiple livepatches.  This test-case is mainly for comparing
+# with the next test-case.
+#
+# - Load and unload two livepatches, pre and post (un)patch callbacks
+#   execute as each patch progresses through its (un)patching
+#   transition.
+
+start_test "multiple livepatches"
+
+load_lp $MOD_LIVEPATCH
+load_lp $MOD_LIVEPATCH2
+disable_lp $MOD_LIVEPATCH2
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH2
+% rmmod $MOD_LIVEPATCH"
+
+
+# Load multiple livepatches, but the second as an 'atomic-replace'
+# patch.  When the latter loads, the original livepatch should be
+# disabled and *none* of its pre/post-unpatch callbacks executed.  On
+# the other hand, when the atomic-replace livepatch is disabled, its
+# pre/post-unpatch callbacks *should* be executed.
+#
+# - Load and unload two livepatches, the second of which has its
+#   .replace flag set true.
+#
+# - Pre and post patch callbacks are executed for both livepatches.
+#
+# - Once the atomic replace module is loaded, only its pre and post
+#   unpatch callbacks are executed.
+
+start_test "atomic replace"
+
+load_lp $MOD_LIVEPATCH
+load_lp $MOD_LIVEPATCH2 replace=1
+disable_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_LIVEPATCH2.ko replace=1
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% rmmod $MOD_LIVEPATCH2
+% rmmod $MOD_LIVEPATCH"
+
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-ftrace.sh b/tools/testing/selftests/livepatch/test-ftrace.sh
new file mode 100755
index 000000000000..094176f1a46a
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-ftrace.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019 Joe Lawrence <joe.lawrence@redhat.com>
+
+. $(dirname $0)/functions.sh
+
+MOD_LIVEPATCH=test_klp_livepatch
+
+setup_config
+
+
+# - turn ftrace_enabled OFF and verify livepatches can't load
+# - turn ftrace_enabled ON and verify livepatch can load
+# - verify that ftrace_enabled can't be turned OFF while a livepatch is loaded
+
+start_test "livepatch interaction with ftrace_enabled sysctl"
+
+set_ftrace_enabled 0
+load_failing_mod $MOD_LIVEPATCH
+
+set_ftrace_enabled 1
+load_lp $MOD_LIVEPATCH
+if [[ "$(cat /proc/cmdline)" != "$MOD_LIVEPATCH: this has been live patched" ]] ; then
+	echo -e "FAIL\n\n"
+	die "livepatch kselftest(s) failed"
+fi
+
+# Check that ftrace could not get disabled when a livepatch is enabled
+set_ftrace_enabled --fail 0
+if [[ "$(cat /proc/cmdline)" != "$MOD_LIVEPATCH: this has been live patched" ]] ; then
+	echo -e "FAIL\n\n"
+	die "livepatch kselftest(s) failed"
+fi
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "livepatch: kernel.ftrace_enabled = 0
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16)
+livepatch: failed to patch object 'vmlinux'
+livepatch: failed to enable patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Device or resource busy
+livepatch: kernel.ftrace_enabled = 1
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+livepatch: sysctl: setting key \"kernel.ftrace_enabled\": Device or resource busy
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# - verify livepatch can load
+# - check if traces have a patched function
+# - reset trace and unload livepatch
+
+start_test "trace livepatched function and check that the live patch remains in effect"
+
+FUNCTION_NAME="livepatch_cmdline_proc_show"
+
+load_lp $MOD_LIVEPATCH
+trace_function "$FUNCTION_NAME"
+
+if [[ "$(cat /proc/cmdline)" == "$MOD_LIVEPATCH: this has been live patched" ]] ; then
+	log "livepatch: ok"
+fi
+
+check_traced_functions "$FUNCTION_NAME"
+
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+livepatch: ok
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-kprobe.sh b/tools/testing/selftests/livepatch/test-kprobe.sh
new file mode 100755
index 000000000000..b67dfad03d97
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-kprobe.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2024 SUSE
+# Author: Michael Vetter <mvetter@suse.com>
+
+. $(dirname $0)/functions.sh
+
+grep -q kprobe_ftrace_ops /proc/kallsyms || skip "test-kprobe requires CONFIG_KPROBES_ON_FTRACE"
+
+MOD_LIVEPATCH=test_klp_livepatch
+MOD_KPROBE=test_klp_kprobe
+
+setup_config
+
+# Kprobe a function and verify that we can't livepatch that same function
+# when it uses a post_handler since only one IPMODIFY maybe be registered
+# to any given function at a time.
+
+start_test "livepatch interaction with kprobed function with post_handler"
+
+echo 1 > "$SYSFS_KPROBES_DIR/enabled"
+
+load_mod $MOD_KPROBE has_post_handler=true
+load_failing_mod $MOD_LIVEPATCH
+unload_mod $MOD_KPROBE
+
+check_result "% insmod test_modules/test_klp_kprobe.ko has_post_handler=true
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: failed to register ftrace handler for function 'cmdline_proc_show' (-16)
+livepatch: failed to patch object 'vmlinux'
+livepatch: failed to enable patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': canceling patching transition, going to unpatch
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Device or resource busy
+% rmmod test_klp_kprobe"
+
+start_test "livepatch interaction with kprobed function without post_handler"
+
+load_mod $MOD_KPROBE has_post_handler=false
+load_lp $MOD_LIVEPATCH
+
+unload_mod $MOD_KPROBE
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/test_klp_kprobe.ko has_post_handler=false
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+% rmmod test_klp_kprobe
+% echo 0 > /sys/kernel/livepatch/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-livepatch.sh b/tools/testing/selftests/livepatch/test-livepatch.sh
new file mode 100755
index 000000000000..6673023d2b66
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-livepatch.sh
@@ -0,0 +1,199 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+. $(dirname $0)/functions.sh
+
+MOD_LIVEPATCH1=test_klp_livepatch
+MOD_LIVEPATCH2=test_klp_syscall
+MOD_LIVEPATCH3=test_klp_callbacks_demo
+MOD_REPLACE=test_klp_atomic_replace
+
+setup_config
+
+
+# - load a livepatch that modifies the output from /proc/cmdline and
+#   verify correct behavior
+# - unload the livepatch and make sure the patch was removed
+
+start_test "basic function patching"
+
+load_lp $MOD_LIVEPATCH1
+
+if [[ "$(cat /proc/cmdline)" != "$MOD_LIVEPATCH1: this has been live patched" ]] ; then
+	echo -e "FAIL\n\n"
+	die "livepatch kselftest(s) failed"
+fi
+
+disable_lp $MOD_LIVEPATCH1
+unload_lp $MOD_LIVEPATCH1
+
+if [[ "$(cat /proc/cmdline)" == "$MOD_LIVEPATCH1: this has been live patched" ]] ; then
+	echo -e "FAIL\n\n"
+	die "livepatch kselftest(s) failed"
+fi
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH1.ko
+livepatch: enabling patch '$MOD_LIVEPATCH1'
+livepatch: '$MOD_LIVEPATCH1': initializing patching transition
+livepatch: '$MOD_LIVEPATCH1': starting patching transition
+livepatch: '$MOD_LIVEPATCH1': completing patching transition
+livepatch: '$MOD_LIVEPATCH1': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH1/enabled
+livepatch: '$MOD_LIVEPATCH1': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH1': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH1': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH1': unpatching complete
+% rmmod $MOD_LIVEPATCH1"
+
+
+# - load a livepatch that modifies the output from /proc/cmdline and
+#   verify correct behavior
+# - load another livepatch and verify that both livepatches are active
+# - unload the second livepatch and verify that the first is still active
+# - unload the first livepatch and verify none are active
+
+start_test "multiple livepatches"
+
+load_lp $MOD_LIVEPATCH1
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+load_lp $MOD_REPLACE replace=0
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+disable_lp $MOD_REPLACE
+unload_lp $MOD_REPLACE
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+disable_lp $MOD_LIVEPATCH1
+unload_lp $MOD_LIVEPATCH1
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH1.ko
+livepatch: enabling patch '$MOD_LIVEPATCH1'
+livepatch: '$MOD_LIVEPATCH1': initializing patching transition
+livepatch: '$MOD_LIVEPATCH1': starting patching transition
+livepatch: '$MOD_LIVEPATCH1': completing patching transition
+livepatch: '$MOD_LIVEPATCH1': patching complete
+$MOD_LIVEPATCH1: this has been live patched
+% insmod test_modules/$MOD_REPLACE.ko replace=0
+livepatch: enabling patch '$MOD_REPLACE'
+livepatch: '$MOD_REPLACE': initializing patching transition
+livepatch: '$MOD_REPLACE': starting patching transition
+livepatch: '$MOD_REPLACE': completing patching transition
+livepatch: '$MOD_REPLACE': patching complete
+$MOD_LIVEPATCH1: this has been live patched
+$MOD_REPLACE: this has been live patched
+% echo 0 > $SYSFS_KLP_DIR/$MOD_REPLACE/enabled
+livepatch: '$MOD_REPLACE': initializing unpatching transition
+livepatch: '$MOD_REPLACE': starting unpatching transition
+livepatch: '$MOD_REPLACE': completing unpatching transition
+livepatch: '$MOD_REPLACE': unpatching complete
+% rmmod $MOD_REPLACE
+$MOD_LIVEPATCH1: this has been live patched
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH1/enabled
+livepatch: '$MOD_LIVEPATCH1': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH1': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH1': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH1': unpatching complete
+% rmmod $MOD_LIVEPATCH1"
+
+
+# - load a livepatch that modifies the output from /proc/cmdline and
+#   verify correct behavior
+# - load two additional livepatches and check the number of livepatch modules
+#   applied
+# - load an atomic replace livepatch and check that the other three modules were
+#   disabled
+# - remove all livepatches besides the atomic replace one and verify that the
+#   atomic replace livepatch is still active
+# - remove the atomic replace livepatch and verify that none are active
+
+start_test "atomic replace livepatch"
+
+load_lp $MOD_LIVEPATCH1
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+for mod in $MOD_LIVEPATCH2 $MOD_LIVEPATCH3; do
+	load_lp "$mod"
+done
+
+mods=($SYSFS_KLP_DIR/*)
+nmods=${#mods[@]}
+if [ "$nmods" -ne 3 ]; then
+	die "Expecting three modules listed, found $nmods"
+fi
+
+load_lp $MOD_REPLACE replace=1
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+loop_until 'mods=($SYSFS_KLP_DIR/*); nmods=${#mods[@]}; [[ "$nmods" -eq 1 ]]' ||
+        die "Expecting only one moduled listed, found $nmods"
+
+# These modules were disabled by the atomic replace
+for mod in $MOD_LIVEPATCH3 $MOD_LIVEPATCH2 $MOD_LIVEPATCH1; do
+	unload_lp "$mod"
+done
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+disable_lp $MOD_REPLACE
+unload_lp $MOD_REPLACE
+
+grep 'live patched' /proc/cmdline > /dev/kmsg
+grep 'live patched' /proc/meminfo > /dev/kmsg
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH1.ko
+livepatch: enabling patch '$MOD_LIVEPATCH1'
+livepatch: '$MOD_LIVEPATCH1': initializing patching transition
+livepatch: '$MOD_LIVEPATCH1': starting patching transition
+livepatch: '$MOD_LIVEPATCH1': completing patching transition
+livepatch: '$MOD_LIVEPATCH1': patching complete
+$MOD_LIVEPATCH1: this has been live patched
+% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% insmod test_modules/$MOD_LIVEPATCH3.ko
+livepatch: enabling patch '$MOD_LIVEPATCH3'
+livepatch: '$MOD_LIVEPATCH3': initializing patching transition
+$MOD_LIVEPATCH3: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH3': starting patching transition
+livepatch: '$MOD_LIVEPATCH3': completing patching transition
+$MOD_LIVEPATCH3: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH3': patching complete
+% insmod test_modules/$MOD_REPLACE.ko replace=1
+livepatch: enabling patch '$MOD_REPLACE'
+livepatch: '$MOD_REPLACE': initializing patching transition
+livepatch: '$MOD_REPLACE': starting patching transition
+livepatch: '$MOD_REPLACE': completing patching transition
+livepatch: '$MOD_REPLACE': patching complete
+$MOD_REPLACE: this has been live patched
+% rmmod $MOD_LIVEPATCH3
+% rmmod $MOD_LIVEPATCH2
+% rmmod $MOD_LIVEPATCH1
+$MOD_REPLACE: this has been live patched
+% echo 0 > $SYSFS_KLP_DIR/$MOD_REPLACE/enabled
+livepatch: '$MOD_REPLACE': initializing unpatching transition
+livepatch: '$MOD_REPLACE': starting unpatching transition
+livepatch: '$MOD_REPLACE': completing unpatching transition
+livepatch: '$MOD_REPLACE': unpatching complete
+% rmmod $MOD_REPLACE"
+
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-shadow-vars.sh b/tools/testing/selftests/livepatch/test-shadow-vars.sh
new file mode 100755
index 000000000000..1218c155bffe
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-shadow-vars.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+. $(dirname $0)/functions.sh
+
+MOD_TEST=test_klp_shadow_vars
+
+setup_config
+
+
+# - load a module that exercises the shadow variable API
+
+start_test "basic shadow variable API"
+
+load_mod $MOD_TEST
+unload_mod $MOD_TEST
+
+check_result "% insmod test_modules/$MOD_TEST.ko
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: shadow_ctor: PTR3 -> PTR2
+$MOD_TEST: klp_shadow_get_or_alloc(obj=PTR1, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR2 = PTR3
+$MOD_TEST: shadow_ctor: PTR6 -> PTR5
+$MOD_TEST: klp_shadow_alloc(obj=PTR1, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR5 = PTR6
+$MOD_TEST: shadow_ctor: PTR8 -> PTR7
+$MOD_TEST: klp_shadow_alloc(obj=PTR9, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR7 = PTR8
+$MOD_TEST: shadow_ctor: PTR11 -> PTR10
+$MOD_TEST: klp_shadow_alloc(obj=PTR9, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR10 = PTR11
+$MOD_TEST: shadow_ctor: PTR13 -> PTR12
+$MOD_TEST: klp_shadow_get_or_alloc(obj=PTR14, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR12 = PTR13
+$MOD_TEST: shadow_ctor: PTR16 -> PTR15
+$MOD_TEST: klp_shadow_alloc(obj=PTR14, id=0x1235, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR15 = PTR16
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1234) = PTR3
+$MOD_TEST:   got expected PTR3 -> PTR2 result
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6
+$MOD_TEST:   got expected PTR6 -> PTR5 result
+$MOD_TEST: klp_shadow_get(obj=PTR9, id=0x1234) = PTR8
+$MOD_TEST:   got expected PTR8 -> PTR7 result
+$MOD_TEST: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11
+$MOD_TEST:   got expected PTR11 -> PTR10 result
+$MOD_TEST: klp_shadow_get(obj=PTR14, id=0x1234) = PTR13
+$MOD_TEST:   got expected PTR13 -> PTR12 result
+$MOD_TEST: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16
+$MOD_TEST:   got expected PTR16 -> PTR15 result
+$MOD_TEST: klp_shadow_get_or_alloc(obj=PTR1, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR2 = PTR3
+$MOD_TEST:   got expected PTR3 -> PTR2 result
+$MOD_TEST: klp_shadow_get_or_alloc(obj=PTR9, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR7 = PTR8
+$MOD_TEST:   got expected PTR8 -> PTR7 result
+$MOD_TEST: klp_shadow_get_or_alloc(obj=PTR14, id=0x1234, size=8, gfp_flags=GFP_KERNEL), ctor=PTR4, ctor_data=PTR12 = PTR13
+$MOD_TEST:   got expected PTR13 -> PTR12 result
+$MOD_TEST: shadow_dtor(obj=PTR1, shadow_data=PTR3)
+$MOD_TEST: klp_shadow_free(obj=PTR1, id=0x1234, dtor=PTR17)
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1234) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: shadow_dtor(obj=PTR9, shadow_data=PTR8)
+$MOD_TEST: klp_shadow_free(obj=PTR9, id=0x1234, dtor=PTR17)
+$MOD_TEST: klp_shadow_get(obj=PTR9, id=0x1234) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: shadow_dtor(obj=PTR14, shadow_data=PTR13)
+$MOD_TEST: klp_shadow_free(obj=PTR14, id=0x1234, dtor=PTR17)
+$MOD_TEST: klp_shadow_get(obj=PTR14, id=0x1234) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1235) = PTR6
+$MOD_TEST:   got expected PTR6 -> PTR5 result
+$MOD_TEST: klp_shadow_get(obj=PTR9, id=0x1235) = PTR11
+$MOD_TEST:   got expected PTR11 -> PTR10 result
+$MOD_TEST: klp_shadow_get(obj=PTR14, id=0x1235) = PTR16
+$MOD_TEST:   got expected PTR16 -> PTR15 result
+$MOD_TEST: klp_shadow_free_all(id=0x1235, dtor=PTR0)
+$MOD_TEST: klp_shadow_get(obj=PTR1, id=0x1235) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: klp_shadow_get(obj=PTR9, id=0x1235) = PTR0
+$MOD_TEST:   got expected NULL result
+$MOD_TEST: klp_shadow_get(obj=PTR14, id=0x1235) = PTR0
+$MOD_TEST:   got expected NULL result
+% rmmod $MOD_TEST"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-state.sh b/tools/testing/selftests/livepatch/test-state.sh
new file mode 100755
index 000000000000..04b66380f8a0
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-state.sh
@@ -0,0 +1,176 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2019 SUSE
+
+. $(dirname $0)/functions.sh
+
+MOD_LIVEPATCH=test_klp_state
+MOD_LIVEPATCH2=test_klp_state2
+MOD_LIVEPATCH3=test_klp_state3
+
+setup_config
+
+
+# Load and remove a module that modifies the system state
+
+start_test "system state modification"
+
+load_lp $MOD_LIVEPATCH
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+$MOD_LIVEPATCH: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: restore_console_loglevel: restoring console_loglevel
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+$MOD_LIVEPATCH: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH: free_loglevel_state: freeing space for the stored console_loglevel
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+
+# Take over system state change by a cumulative patch
+
+start_test "taking over system state modification"
+
+load_lp $MOD_LIVEPATCH
+load_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH
+disable_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH2
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+$MOD_LIVEPATCH: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH: allocate_loglevel_state: allocating space to store console_loglevel
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+$MOD_LIVEPATCH: post_patch_callback: vmlinux
+$MOD_LIVEPATCH: fix_console_loglevel: fixing console_loglevel
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% rmmod $MOD_LIVEPATCH
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% rmmod $MOD_LIVEPATCH2"
+
+
+# Take over system state change by a cumulative patch
+
+start_test "compatible cumulative livepatches"
+
+load_lp $MOD_LIVEPATCH2
+load_lp $MOD_LIVEPATCH3
+unload_lp $MOD_LIVEPATCH2
+load_lp $MOD_LIVEPATCH2
+disable_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH3
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% insmod test_modules/$MOD_LIVEPATCH3.ko
+livepatch: enabling patch '$MOD_LIVEPATCH3'
+livepatch: '$MOD_LIVEPATCH3': initializing patching transition
+$MOD_LIVEPATCH3: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH3: allocate_loglevel_state: space to store console_loglevel already allocated
+livepatch: '$MOD_LIVEPATCH3': starting patching transition
+livepatch: '$MOD_LIVEPATCH3': completing patching transition
+$MOD_LIVEPATCH3: post_patch_callback: vmlinux
+$MOD_LIVEPATCH3: fix_console_loglevel: taking over the console_loglevel change
+livepatch: '$MOD_LIVEPATCH3': patching complete
+% rmmod $MOD_LIVEPATCH2
+% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH2: allocate_loglevel_state: space to store console_loglevel already allocated
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+$MOD_LIVEPATCH2: fix_console_loglevel: taking over the console_loglevel change
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% rmmod $MOD_LIVEPATCH2
+% rmmod $MOD_LIVEPATCH3"
+
+
+# Failure caused by incompatible cumulative livepatches
+
+start_test "incompatible cumulative livepatches"
+
+load_lp $MOD_LIVEPATCH2
+load_failing_mod $MOD_LIVEPATCH
+disable_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH2
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+$MOD_LIVEPATCH2: allocate_loglevel_state: allocating space to store console_loglevel
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+$MOD_LIVEPATCH2: fix_console_loglevel: fixing console_loglevel
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: Livepatch patch ($MOD_LIVEPATCH) is not compatible with the already installed livepatches.
+insmod: ERROR: could not insert module test_modules/$MOD_LIVEPATCH.ko: Invalid parameters
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: restore_console_loglevel: restoring console_loglevel
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+$MOD_LIVEPATCH2: free_loglevel_state: freeing space for the stored console_loglevel
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% rmmod $MOD_LIVEPATCH2"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-syscall.sh b/tools/testing/selftests/livepatch/test-syscall.sh
new file mode 100755
index 000000000000..5f9344277b62
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-syscall.sh
@@ -0,0 +1,56 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2023 SUSE
+# Author: Marcos Paulo de Souza <mpdesouza@suse.com>
+
+. $(dirname $0)/functions.sh
+
+MOD_SYSCALL=test_klp_syscall
+
+setup_config
+
+# - Start _NRPROC processes calling getpid and load a livepatch to patch the
+#   getpid syscall. Check if all the processes transitioned to the livepatched
+#   state.
+
+start_test "patch getpid syscall while being heavily hammered"
+
+NPROC=$(getconf _NPROCESSORS_ONLN)
+MAXPROC=128
+
+for i in $(seq 1 $(($NPROC < $MAXPROC ? $NPROC : $MAXPROC))); do
+	./test_klp-call_getpid &
+	pids[$i]="$!"
+done
+
+pid_list=$(echo ${pids[@]} | tr ' ' ',')
+load_lp $MOD_SYSCALL klp_pids=$pid_list
+
+# wait for all tasks to transition to patched state
+loop_until 'grep -q '^0$' $SYSFS_KERNEL_DIR/$MOD_SYSCALL/npids'
+
+pending_pids=$(cat $SYSFS_KERNEL_DIR/$MOD_SYSCALL/npids)
+log "$MOD_SYSCALL: Remaining not livepatched processes: $pending_pids"
+
+for pid in ${pids[@]}; do
+	kill $pid || true
+done
+
+disable_lp $MOD_SYSCALL
+unload_lp $MOD_SYSCALL
+
+check_result "% insmod test_modules/$MOD_SYSCALL.ko klp_pids=$pid_list
+livepatch: enabling patch '$MOD_SYSCALL'
+livepatch: '$MOD_SYSCALL': initializing patching transition
+livepatch: '$MOD_SYSCALL': starting patching transition
+livepatch: '$MOD_SYSCALL': completing patching transition
+livepatch: '$MOD_SYSCALL': patching complete
+$MOD_SYSCALL: Remaining not livepatched processes: 0
+% echo 0 > $SYSFS_KLP_DIR/$MOD_SYSCALL/enabled
+livepatch: '$MOD_SYSCALL': initializing unpatching transition
+livepatch: '$MOD_SYSCALL': starting unpatching transition
+livepatch: '$MOD_SYSCALL': completing unpatching transition
+livepatch: '$MOD_SYSCALL': unpatching complete
+% rmmod $MOD_SYSCALL"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test-sysfs.sh b/tools/testing/selftests/livepatch/test-sysfs.sh
new file mode 100755
index 000000000000..58fe1d96997c
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test-sysfs.sh
@@ -0,0 +1,205 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2022 Song Liu <song@kernel.org>
+
+. $(dirname $0)/functions.sh
+
+MOD_LIVEPATCH=test_klp_livepatch
+MOD_LIVEPATCH2=test_klp_callbacks_demo
+MOD_LIVEPATCH3=test_klp_syscall
+
+setup_config
+
+# - load a livepatch and verifies the sysfs entries work as expected
+
+start_test "sysfs test"
+
+load_lp $MOD_LIVEPATCH
+
+check_sysfs_rights "$MOD_LIVEPATCH" "" "drwxr-xr-x"
+check_sysfs_rights "$MOD_LIVEPATCH" "enabled" "-rw-r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "enabled" "1"
+check_sysfs_rights "$MOD_LIVEPATCH" "force" "--w-------"
+check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
+check_sysfs_rights "$MOD_LIVEPATCH" "stack_order" "-r--r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "stack_order" "1"
+check_sysfs_rights "$MOD_LIVEPATCH" "transition" "-r--r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "transition" "0"
+check_sysfs_rights "$MOD_LIVEPATCH" "vmlinux/patched" "-r--r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "vmlinux/patched" "1"
+
+disable_lp $MOD_LIVEPATCH
+
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+start_test "sysfs test object/patched"
+
+MOD_LIVEPATCH=test_klp_callbacks_demo
+MOD_TARGET=test_klp_callbacks_mod
+load_lp $MOD_LIVEPATCH
+
+# check the "patch" file changes as target module loads/unloads
+check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
+load_mod $MOD_TARGET
+check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "1"
+unload_mod $MOD_TARGET
+check_sysfs_value  "$MOD_LIVEPATCH" "$MOD_TARGET/patched" "0"
+
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/test_klp_callbacks_demo.ko
+livepatch: enabling patch 'test_klp_callbacks_demo'
+livepatch: 'test_klp_callbacks_demo': initializing patching transition
+test_klp_callbacks_demo: pre_patch_callback: vmlinux
+livepatch: 'test_klp_callbacks_demo': starting patching transition
+livepatch: 'test_klp_callbacks_demo': completing patching transition
+test_klp_callbacks_demo: post_patch_callback: vmlinux
+livepatch: 'test_klp_callbacks_demo': patching complete
+% insmod test_modules/test_klp_callbacks_mod.ko
+livepatch: applying patch 'test_klp_callbacks_demo' to loading module 'test_klp_callbacks_mod'
+test_klp_callbacks_demo: pre_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
+test_klp_callbacks_demo: post_patch_callback: test_klp_callbacks_mod -> [MODULE_STATE_COMING] Full formed, running module_init
+test_klp_callbacks_mod: test_klp_callbacks_mod_init
+% rmmod test_klp_callbacks_mod
+test_klp_callbacks_mod: test_klp_callbacks_mod_exit
+test_klp_callbacks_demo: pre_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
+livepatch: reverting patch 'test_klp_callbacks_demo' on unloading module 'test_klp_callbacks_mod'
+test_klp_callbacks_demo: post_unpatch_callback: test_klp_callbacks_mod -> [MODULE_STATE_GOING] Going away
+% echo 0 > $SYSFS_KLP_DIR/test_klp_callbacks_demo/enabled
+livepatch: 'test_klp_callbacks_demo': initializing unpatching transition
+test_klp_callbacks_demo: pre_unpatch_callback: vmlinux
+livepatch: 'test_klp_callbacks_demo': starting unpatching transition
+livepatch: 'test_klp_callbacks_demo': completing unpatching transition
+test_klp_callbacks_demo: post_unpatch_callback: vmlinux
+livepatch: 'test_klp_callbacks_demo': unpatching complete
+% rmmod test_klp_callbacks_demo"
+
+start_test "sysfs test replace enabled"
+
+MOD_LIVEPATCH=test_klp_atomic_replace
+load_lp $MOD_LIVEPATCH replace=1
+
+check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "replace" "1"
+
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=1
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+start_test "sysfs test replace disabled"
+
+load_lp $MOD_LIVEPATCH replace=0
+
+check_sysfs_rights "$MOD_LIVEPATCH" "replace" "-r--r--r--"
+check_sysfs_value  "$MOD_LIVEPATCH" "replace" "0"
+
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko replace=0
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+start_test "sysfs test stack_order value"
+
+load_lp $MOD_LIVEPATCH
+
+check_sysfs_value  "$MOD_LIVEPATCH" "stack_order" "1"
+
+load_lp $MOD_LIVEPATCH2
+
+check_sysfs_value  "$MOD_LIVEPATCH2" "stack_order" "2"
+
+load_lp $MOD_LIVEPATCH3
+
+check_sysfs_value  "$MOD_LIVEPATCH3" "stack_order" "3"
+
+disable_lp $MOD_LIVEPATCH2
+unload_lp $MOD_LIVEPATCH2
+
+check_sysfs_value  "$MOD_LIVEPATCH" "stack_order" "1"
+check_sysfs_value  "$MOD_LIVEPATCH3" "stack_order" "2"
+
+disable_lp $MOD_LIVEPATCH3
+unload_lp $MOD_LIVEPATCH3
+
+disable_lp $MOD_LIVEPATCH
+unload_lp $MOD_LIVEPATCH
+
+check_result "% insmod test_modules/$MOD_LIVEPATCH.ko
+livepatch: enabling patch '$MOD_LIVEPATCH'
+livepatch: '$MOD_LIVEPATCH': initializing patching transition
+livepatch: '$MOD_LIVEPATCH': starting patching transition
+livepatch: '$MOD_LIVEPATCH': completing patching transition
+livepatch: '$MOD_LIVEPATCH': patching complete
+% insmod test_modules/$MOD_LIVEPATCH2.ko
+livepatch: enabling patch '$MOD_LIVEPATCH2'
+livepatch: '$MOD_LIVEPATCH2': initializing patching transition
+$MOD_LIVEPATCH2: pre_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting patching transition
+livepatch: '$MOD_LIVEPATCH2': completing patching transition
+$MOD_LIVEPATCH2: post_patch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': patching complete
+% insmod test_modules/$MOD_LIVEPATCH3.ko
+livepatch: enabling patch '$MOD_LIVEPATCH3'
+livepatch: '$MOD_LIVEPATCH3': initializing patching transition
+livepatch: '$MOD_LIVEPATCH3': starting patching transition
+livepatch: '$MOD_LIVEPATCH3': completing patching transition
+livepatch: '$MOD_LIVEPATCH3': patching complete
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH2/enabled
+livepatch: '$MOD_LIVEPATCH2': initializing unpatching transition
+$MOD_LIVEPATCH2: pre_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH2': completing unpatching transition
+$MOD_LIVEPATCH2: post_unpatch_callback: vmlinux
+livepatch: '$MOD_LIVEPATCH2': unpatching complete
+% rmmod $MOD_LIVEPATCH2
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH3/enabled
+livepatch: '$MOD_LIVEPATCH3': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH3': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH3': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH3': unpatching complete
+% rmmod $MOD_LIVEPATCH3
+% echo 0 > $SYSFS_KLP_DIR/$MOD_LIVEPATCH/enabled
+livepatch: '$MOD_LIVEPATCH': initializing unpatching transition
+livepatch: '$MOD_LIVEPATCH': starting unpatching transition
+livepatch: '$MOD_LIVEPATCH': completing unpatching transition
+livepatch: '$MOD_LIVEPATCH': unpatching complete
+% rmmod $MOD_LIVEPATCH"
+
+exit 0
diff --git a/tools/testing/selftests/livepatch/test_klp-call_getpid.c b/tools/testing/selftests/livepatch/test_klp-call_getpid.c
new file mode 100644
index 000000000000..ce321a2d7308
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_klp-call_getpid.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2023 SUSE
+ * Authors: Libor Pechacek <lpechacek@suse.cz>
+ *          Marcos Paulo de Souza <mpdesouza@suse.com>
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <signal.h>
+
+static int stop;
+static int sig_int;
+
+void hup_handler(int signum)
+{
+	stop = 1;
+}
+
+void int_handler(int signum)
+{
+	stop = 1;
+	sig_int = 1;
+}
+
+int main(int argc, char *argv[])
+{
+	long count = 0;
+
+	signal(SIGHUP, &hup_handler);
+	signal(SIGINT, &int_handler);
+
+	while (!stop) {
+		(void)syscall(SYS_getpid);
+		count++;
+	}
+
+	if (sig_int)
+		printf("%ld iterations done\n", count);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/livepatch/test_modules/Makefile b/tools/testing/selftests/livepatch/test_modules/Makefile
new file mode 100644
index 000000000000..939230e571f5
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/Makefile
@@ -0,0 +1,27 @@
+TESTMODS_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
+KDIR ?= /lib/modules/$(shell uname -r)/build
+
+obj-m += test_klp_atomic_replace.o \
+	test_klp_callbacks_busy.o \
+	test_klp_callbacks_demo.o \
+	test_klp_callbacks_demo2.o \
+	test_klp_callbacks_mod.o \
+	test_klp_kprobe.o \
+	test_klp_livepatch.o \
+	test_klp_shadow_vars.o \
+	test_klp_state.o \
+	test_klp_state2.o \
+	test_klp_state3.o \
+	test_klp_syscall.o
+
+# Ensure that KDIR exists, otherwise skip the compilation
+modules:
+ifneq ("$(wildcard $(KDIR))", "")
+	$(Q)$(MAKE) -C $(KDIR) modules KBUILD_EXTMOD=$(TESTMODS_DIR)
+endif
+
+# Ensure that KDIR exists, otherwise skip the clean target
+clean:
+ifneq ("$(wildcard $(KDIR))", "")
+	$(Q)$(MAKE) -C $(KDIR) clean KBUILD_EXTMOD=$(TESTMODS_DIR)
+endif
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_atomic_replace.c b/tools/testing/selftests/livepatch/test_modules/test_klp_atomic_replace.c
new file mode 100644
index 000000000000..5af7093ca00c
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_atomic_replace.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/livepatch.h>
+
+static int replace;
+module_param(replace, int, 0644);
+MODULE_PARM_DESC(replace, "replace (default=0)");
+
+#include <linux/seq_file.h>
+static int livepatch_meminfo_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "%s: %s\n", THIS_MODULE->name,
+		   "this has been live patched");
+	return 0;
+}
+
+static struct klp_func funcs[] = {
+	{
+		.old_name = "meminfo_proc_show",
+		.new_func = livepatch_meminfo_proc_show,
+	}, {}
+};
+
+static struct klp_object objs[] = {
+	{
+		/* name being NULL means vmlinux */
+		.funcs = funcs,
+	}, {}
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+	/* set .replace in the init function below for demo purposes */
+};
+
+static int test_klp_atomic_replace_init(void)
+{
+	patch.replace = replace;
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_atomic_replace_exit(void)
+{
+}
+
+module_init(test_klp_atomic_replace_init);
+module_exit(test_klp_atomic_replace_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: atomic replace");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_busy.c b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_busy.c
new file mode 100644
index 000000000000..133929e0ce8f
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_busy.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+
+/* load/run-time control from sysfs writer  */
+static bool block_transition;
+module_param(block_transition, bool, 0644);
+MODULE_PARM_DESC(block_transition, "block_transition (default=false)");
+
+static void busymod_work_func(struct work_struct *work);
+static DECLARE_WORK(work, busymod_work_func);
+static DECLARE_COMPLETION(busymod_work_started);
+
+static void busymod_work_func(struct work_struct *work)
+{
+	pr_info("%s enter\n", __func__);
+	complete(&busymod_work_started);
+
+	while (READ_ONCE(block_transition)) {
+		/*
+		 * Busy-wait until the sysfs writer has acknowledged a
+		 * blocked transition and clears the flag.
+		 */
+		msleep(20);
+	}
+
+	pr_info("%s exit\n", __func__);
+}
+
+static int test_klp_callbacks_busy_init(void)
+{
+	pr_info("%s\n", __func__);
+	schedule_work(&work);
+
+	/*
+	 * To synchronize kernel messages, hold the init function from
+	 * exiting until the work function's entry message has printed.
+	 */
+	wait_for_completion(&busymod_work_started);
+
+	if (!block_transition) {
+		/*
+		 * Serialize output: print all messages from the work
+		 * function before returning from init().
+		 */
+		flush_work(&work);
+	}
+
+	return 0;
+}
+
+static void test_klp_callbacks_busy_exit(void)
+{
+	WRITE_ONCE(block_transition, false);
+	flush_work(&work);
+	pr_info("%s\n", __func__);
+}
+
+module_init(test_klp_callbacks_busy_init);
+module_exit(test_klp_callbacks_busy_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: busy target module");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo.c b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo.c
new file mode 100644
index 000000000000..3fd8fe1cd1cc
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/livepatch.h>
+
+static int pre_patch_ret;
+module_param(pre_patch_ret, int, 0644);
+MODULE_PARM_DESC(pre_patch_ret, "pre_patch_ret (default=0)");
+
+static const char *const module_state[] = {
+	[MODULE_STATE_LIVE]	= "[MODULE_STATE_LIVE] Normal state",
+	[MODULE_STATE_COMING]	= "[MODULE_STATE_COMING] Full formed, running module_init",
+	[MODULE_STATE_GOING]	= "[MODULE_STATE_GOING] Going away",
+	[MODULE_STATE_UNFORMED]	= "[MODULE_STATE_UNFORMED] Still setting it up",
+};
+
+static void callback_info(const char *callback, struct klp_object *obj)
+{
+	if (obj->mod)
+		pr_info("%s: %s -> %s\n", callback, obj->mod->name,
+			module_state[obj->mod->state]);
+	else
+		pr_info("%s: vmlinux\n", callback);
+}
+
+/* Executed on object patching (ie, patch enablement) */
+static int pre_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	return pre_patch_ret;
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void pre_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+static void patched_work_func(struct work_struct *work)
+{
+	pr_info("%s\n", __func__);
+}
+
+static struct klp_func no_funcs[] = {
+	{}
+};
+
+static struct klp_func busymod_funcs[] = {
+	{
+		.old_name = "busymod_work_func",
+		.new_func = patched_work_func,
+	}, {}
+};
+
+static struct klp_object objs[] = {
+	{
+		.name = NULL,	/* vmlinux */
+		.funcs = no_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	},	{
+		.name = "test_klp_callbacks_mod",
+		.funcs = no_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	},	{
+		.name = "test_klp_callbacks_busy",
+		.funcs = busymod_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	}, { }
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+};
+
+static int test_klp_callbacks_demo_init(void)
+{
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_callbacks_demo_exit(void)
+{
+}
+
+module_init(test_klp_callbacks_demo_init);
+module_exit(test_klp_callbacks_demo_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: livepatch demo");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo2.c b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo2.c
new file mode 100644
index 000000000000..5417573e80af
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_demo2.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/livepatch.h>
+
+static int replace;
+module_param(replace, int, 0644);
+MODULE_PARM_DESC(replace, "replace (default=0)");
+
+static const char *const module_state[] = {
+	[MODULE_STATE_LIVE]	= "[MODULE_STATE_LIVE] Normal state",
+	[MODULE_STATE_COMING]	= "[MODULE_STATE_COMING] Full formed, running module_init",
+	[MODULE_STATE_GOING]	= "[MODULE_STATE_GOING] Going away",
+	[MODULE_STATE_UNFORMED]	= "[MODULE_STATE_UNFORMED] Still setting it up",
+};
+
+static void callback_info(const char *callback, struct klp_object *obj)
+{
+	if (obj->mod)
+		pr_info("%s: %s -> %s\n", callback, obj->mod->name,
+			module_state[obj->mod->state]);
+	else
+		pr_info("%s: vmlinux\n", callback);
+}
+
+/* Executed on object patching (ie, patch enablement) */
+static int pre_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	return 0;
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void pre_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+}
+
+static struct klp_func no_funcs[] = {
+	{ }
+};
+
+static struct klp_object objs[] = {
+	{
+		.name = NULL,	/* vmlinux */
+		.funcs = no_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	}, { }
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+	/* set .replace in the init function below for demo purposes */
+};
+
+static int test_klp_callbacks_demo2_init(void)
+{
+	patch.replace = replace;
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_callbacks_demo2_exit(void)
+{
+}
+
+module_init(test_klp_callbacks_demo2_init);
+module_exit(test_klp_callbacks_demo2_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: livepatch demo2");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_mod.c b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_mod.c
new file mode 100644
index 000000000000..8fbe645b1c2c
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_callbacks_mod.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+
+static int test_klp_callbacks_mod_init(void)
+{
+	pr_info("%s\n", __func__);
+	return 0;
+}
+
+static void test_klp_callbacks_mod_exit(void)
+{
+	pr_info("%s\n", __func__);
+}
+
+module_init(test_klp_callbacks_mod_init);
+module_exit(test_klp_callbacks_mod_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: target module");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c b/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c
new file mode 100644
index 000000000000..67a8d29012f6
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2024 Marcos Paulo de Souza <mpdesouza@suse.com>
+// Copyright (C) 2024 Michael Vetter <mvetter@suse.com>
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/kprobes.h>
+
+static bool has_post_handler = true;
+module_param(has_post_handler, bool, 0444);
+
+static void __kprobes post_handler(struct kprobe *p, struct pt_regs *regs,
+				unsigned long flags)
+{
+}
+
+static struct kprobe kp = {
+	.symbol_name = "cmdline_proc_show",
+};
+
+static int __init kprobe_init(void)
+{
+	if (has_post_handler)
+		kp.post_handler = post_handler;
+
+	return register_kprobe(&kp);
+}
+
+static void __exit kprobe_exit(void)
+{
+	unregister_kprobe(&kp);
+}
+
+module_init(kprobe_init)
+module_exit(kprobe_exit)
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michael Vetter <mvetter@suse.com>");
+MODULE_DESCRIPTION("Livepatch test: kprobe function");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_livepatch.c b/tools/testing/selftests/livepatch/test_modules/test_klp_livepatch.c
new file mode 100644
index 000000000000..aff08199de71
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_livepatch.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2014 Seth Jennings <sjenning@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/livepatch.h>
+
+#include <linux/seq_file.h>
+static int livepatch_cmdline_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "%s: %s\n", THIS_MODULE->name,
+		   "this has been live patched");
+	return 0;
+}
+
+static struct klp_func funcs[] = {
+	{
+		.old_name = "cmdline_proc_show",
+		.new_func = livepatch_cmdline_proc_show,
+	}, { }
+};
+
+static struct klp_object objs[] = {
+	{
+		/* name being NULL means vmlinux */
+		.funcs = funcs,
+	}, { }
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+};
+
+static int test_klp_livepatch_init(void)
+{
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_livepatch_exit(void)
+{
+}
+
+module_init(test_klp_livepatch_init);
+module_exit(test_klp_livepatch_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Seth Jennings <sjenning@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: livepatch module");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_shadow_vars.c b/tools/testing/selftests/livepatch/test_modules/test_klp_shadow_vars.c
new file mode 100644
index 000000000000..b99116490858
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_shadow_vars.c
@@ -0,0 +1,301 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 Joe Lawrence <joe.lawrence@redhat.com>
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/livepatch.h>
+#include <linux/slab.h>
+
+/*
+ * Keep a small list of pointers so that we can print address-agnostic
+ * pointer values.  Use a rolling integer count to differentiate the values.
+ * Ironically we could have used the shadow variable API to do this, but
+ * let's not lean too heavily on the very code we're testing.
+ */
+static LIST_HEAD(ptr_list);
+struct shadow_ptr {
+	void *ptr;
+	int id;
+	struct list_head list;
+};
+
+static void free_ptr_list(void)
+{
+	struct shadow_ptr *sp, *tmp_sp;
+
+	list_for_each_entry_safe(sp, tmp_sp, &ptr_list, list) {
+		list_del(&sp->list);
+		kfree(sp);
+	}
+}
+
+static int ptr_id(void *ptr)
+{
+	struct shadow_ptr *sp;
+	static int count;
+
+	list_for_each_entry(sp, &ptr_list, list) {
+		if (sp->ptr == ptr)
+			return sp->id;
+	}
+
+	sp = kmalloc(sizeof(*sp), GFP_ATOMIC);
+	if (!sp)
+		return -ENOMEM;
+	sp->ptr = ptr;
+	sp->id = count++;
+
+	list_add(&sp->list, &ptr_list);
+
+	return sp->id;
+}
+
+/*
+ * Shadow variable wrapper functions that echo the function and arguments
+ * to the kernel log for testing verification.  Don't display raw pointers,
+ * but use the ptr_id() value instead.
+ */
+static void *shadow_get(void *obj, unsigned long id)
+{
+	int **sv;
+
+	sv = klp_shadow_get(obj, id);
+	pr_info("klp_%s(obj=PTR%d, id=0x%lx) = PTR%d\n",
+		__func__, ptr_id(obj), id, ptr_id(sv));
+
+	return sv;
+}
+
+static void *shadow_alloc(void *obj, unsigned long id, size_t size,
+			  gfp_t gfp_flags, klp_shadow_ctor_t ctor,
+			  void *ctor_data)
+{
+	int **var = ctor_data;
+	int **sv;
+
+	sv = klp_shadow_alloc(obj, id, size, gfp_flags, ctor, var);
+	pr_info("klp_%s(obj=PTR%d, id=0x%lx, size=%zx, gfp_flags=%pGg), ctor=PTR%d, ctor_data=PTR%d = PTR%d\n",
+		__func__, ptr_id(obj), id, size, &gfp_flags, ptr_id(ctor),
+		ptr_id(*var), ptr_id(sv));
+
+	return sv;
+}
+
+static void *shadow_get_or_alloc(void *obj, unsigned long id, size_t size,
+				 gfp_t gfp_flags, klp_shadow_ctor_t ctor,
+				 void *ctor_data)
+{
+	int **var = ctor_data;
+	int **sv;
+
+	sv = klp_shadow_get_or_alloc(obj, id, size, gfp_flags, ctor, var);
+	pr_info("klp_%s(obj=PTR%d, id=0x%lx, size=%zx, gfp_flags=%pGg), ctor=PTR%d, ctor_data=PTR%d = PTR%d\n",
+		__func__, ptr_id(obj), id, size, &gfp_flags, ptr_id(ctor),
+		ptr_id(*var), ptr_id(sv));
+
+	return sv;
+}
+
+static void shadow_free(void *obj, unsigned long id, klp_shadow_dtor_t dtor)
+{
+	klp_shadow_free(obj, id, dtor);
+	pr_info("klp_%s(obj=PTR%d, id=0x%lx, dtor=PTR%d)\n",
+		__func__, ptr_id(obj), id, ptr_id(dtor));
+}
+
+static void shadow_free_all(unsigned long id, klp_shadow_dtor_t dtor)
+{
+	klp_shadow_free_all(id, dtor);
+	pr_info("klp_%s(id=0x%lx, dtor=PTR%d)\n", __func__, id, ptr_id(dtor));
+}
+
+
+/* Shadow variable constructor - remember simple pointer data */
+static int shadow_ctor(void *obj, void *shadow_data, void *ctor_data)
+{
+	int **sv = shadow_data;
+	int **var = ctor_data;
+
+	if (!var)
+		return -EINVAL;
+
+	*sv = *var;
+	pr_info("%s: PTR%d -> PTR%d\n", __func__, ptr_id(sv), ptr_id(*var));
+
+	return 0;
+}
+
+/*
+ * With more than one item to free in the list, order is not determined and
+ * shadow_dtor will not be passed to shadow_free_all() which would make the
+ * test fail. (see pass 6)
+ */
+static void shadow_dtor(void *obj, void *shadow_data)
+{
+	int **sv = shadow_data;
+
+	pr_info("%s(obj=PTR%d, shadow_data=PTR%d)\n",
+		__func__, ptr_id(obj), ptr_id(sv));
+}
+
+/* number of objects we simulate that need shadow vars */
+#define NUM_OBJS 3
+
+/* dynamically created obj fields have the following shadow var id values */
+#define SV_ID1 0x1234
+#define SV_ID2 0x1235
+
+/*
+ * The main test case adds/removes new fields (shadow var) to each of these
+ * test structure instances. The last group of fields in the struct represent
+ * the idea that shadow variables may be added and removed to and from the
+ * struct during execution.
+ */
+struct test_object {
+	 /* add anything here below and avoid to define an empty struct */
+	struct shadow_ptr sp;
+
+	/* these represent shadow vars added and removed with SV_ID{1,2} */
+	/* char nfield1; */
+	/* int  nfield2; */
+};
+
+static int test_klp_shadow_vars_init(void)
+{
+	struct test_object objs[NUM_OBJS];
+	char nfields1[NUM_OBJS], *pnfields1[NUM_OBJS], **sv1[NUM_OBJS];
+	char *pndup[NUM_OBJS];
+	int nfields2[NUM_OBJS], *pnfields2[NUM_OBJS], **sv2[NUM_OBJS];
+	void **sv;
+	int ret;
+	int i;
+
+	ptr_id(NULL);
+
+	/*
+	 * With an empty shadow variable hash table, expect not to find
+	 * any matches.
+	 */
+	sv = shadow_get(&objs[0], SV_ID1);
+	if (!sv)
+		pr_info("  got expected NULL result\n");
+
+	/* pass 1: init & alloc a char+int pair of svars for each objs */
+	for (i = 0; i < NUM_OBJS; i++) {
+		pnfields1[i] = &nfields1[i];
+		ptr_id(pnfields1[i]);
+
+		if (i % 2) {
+			sv1[i] = shadow_alloc(&objs[i], SV_ID1,
+					sizeof(pnfields1[i]), GFP_KERNEL,
+					shadow_ctor, &pnfields1[i]);
+		} else {
+			sv1[i] = shadow_get_or_alloc(&objs[i], SV_ID1,
+					sizeof(pnfields1[i]), GFP_KERNEL,
+					shadow_ctor, &pnfields1[i]);
+		}
+		if (!sv1[i]) {
+			ret = -ENOMEM;
+			goto out;
+		}
+
+		pnfields2[i] = &nfields2[i];
+		ptr_id(pnfields2[i]);
+		sv2[i] = shadow_alloc(&objs[i], SV_ID2, sizeof(pnfields2[i]),
+					GFP_KERNEL, shadow_ctor, &pnfields2[i]);
+		if (!sv2[i]) {
+			ret = -ENOMEM;
+			goto out;
+		}
+	}
+
+	/* pass 2: verify we find allocated svars and where they point to */
+	for (i = 0; i < NUM_OBJS; i++) {
+		/* check the "char" svar for all objects */
+		sv = shadow_get(&objs[i], SV_ID1);
+		if (!sv) {
+			ret = -EINVAL;
+			goto out;
+		}
+		if ((char **)sv == sv1[i] && *sv1[i] == pnfields1[i])
+			pr_info("  got expected PTR%d -> PTR%d result\n",
+				ptr_id(sv1[i]), ptr_id(*sv1[i]));
+
+		/* check the "int" svar for all objects */
+		sv = shadow_get(&objs[i], SV_ID2);
+		if (!sv) {
+			ret = -EINVAL;
+			goto out;
+		}
+		if ((int **)sv == sv2[i] && *sv2[i] == pnfields2[i])
+			pr_info("  got expected PTR%d -> PTR%d result\n",
+				ptr_id(sv2[i]), ptr_id(*sv2[i]));
+	}
+
+	/* pass 3: verify that 'get_or_alloc' returns already allocated svars */
+	for (i = 0; i < NUM_OBJS; i++) {
+		pndup[i] = &nfields1[i];
+		ptr_id(pndup[i]);
+
+		sv = shadow_get_or_alloc(&objs[i], SV_ID1, sizeof(pndup[i]),
+					GFP_KERNEL, shadow_ctor, &pndup[i]);
+		if (!sv) {
+			ret = -EINVAL;
+			goto out;
+		}
+		if ((char **)sv == sv1[i] && *sv1[i] == pnfields1[i])
+			pr_info("  got expected PTR%d -> PTR%d result\n",
+					ptr_id(sv1[i]), ptr_id(*sv1[i]));
+	}
+
+	/* pass 4: free <objs[*], SV_ID1> pairs of svars, verify removal */
+	for (i = 0; i < NUM_OBJS; i++) {
+		shadow_free(&objs[i], SV_ID1, shadow_dtor); /* 'char' pairs */
+		sv = shadow_get(&objs[i], SV_ID1);
+		if (!sv)
+			pr_info("  got expected NULL result\n");
+	}
+
+	/* pass 5: check we still find <objs[*], SV_ID2> svar pairs */
+	for (i = 0; i < NUM_OBJS; i++) {
+		sv = shadow_get(&objs[i], SV_ID2);	/* 'int' pairs */
+		if (!sv) {
+			ret = -EINVAL;
+			goto out;
+		}
+		if ((int **)sv == sv2[i] && *sv2[i] == pnfields2[i])
+			pr_info("  got expected PTR%d -> PTR%d result\n",
+					ptr_id(sv2[i]), ptr_id(*sv2[i]));
+	}
+
+	/* pass 6: free all the <objs[*], SV_ID2> svar pairs too. */
+	shadow_free_all(SV_ID2, NULL);		/* 'int' pairs */
+	for (i = 0; i < NUM_OBJS; i++) {
+		sv = shadow_get(&objs[i], SV_ID2);
+		if (!sv)
+			pr_info("  got expected NULL result\n");
+	}
+
+	free_ptr_list();
+
+	return 0;
+out:
+	shadow_free_all(SV_ID1, NULL);		/* 'char' pairs */
+	shadow_free_all(SV_ID2, NULL);		/* 'int' pairs */
+	free_ptr_list();
+
+	return ret;
+}
+
+static void test_klp_shadow_vars_exit(void)
+{
+}
+
+module_init(test_klp_shadow_vars_init);
+module_exit(test_klp_shadow_vars_exit);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Joe Lawrence <joe.lawrence@redhat.com>");
+MODULE_DESCRIPTION("Livepatch test: shadow variables");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_state.c b/tools/testing/selftests/livepatch/test_modules/test_klp_state.c
new file mode 100644
index 000000000000..57a4253acb01
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_state.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 SUSE
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/livepatch.h>
+
+#define CONSOLE_LOGLEVEL_STATE 1
+/* Version 1 does not support migration. */
+#define CONSOLE_LOGLEVEL_STATE_VERSION 1
+
+static const char *const module_state[] = {
+	[MODULE_STATE_LIVE]	= "[MODULE_STATE_LIVE] Normal state",
+	[MODULE_STATE_COMING]	= "[MODULE_STATE_COMING] Full formed, running module_init",
+	[MODULE_STATE_GOING]	= "[MODULE_STATE_GOING] Going away",
+	[MODULE_STATE_UNFORMED]	= "[MODULE_STATE_UNFORMED] Still setting it up",
+};
+
+static void callback_info(const char *callback, struct klp_object *obj)
+{
+	if (obj->mod)
+		pr_info("%s: %s -> %s\n", callback, obj->mod->name,
+			module_state[obj->mod->state]);
+	else
+		pr_info("%s: vmlinux\n", callback);
+}
+
+static struct klp_patch patch;
+
+static int allocate_loglevel_state(void)
+{
+	struct klp_state *loglevel_state;
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return -EINVAL;
+
+	loglevel_state->data = kzalloc(sizeof(console_loglevel), GFP_KERNEL);
+	if (!loglevel_state->data)
+		return -ENOMEM;
+
+	pr_info("%s: allocating space to store console_loglevel\n",
+		__func__);
+	return 0;
+}
+
+static void fix_console_loglevel(void)
+{
+	struct klp_state *loglevel_state;
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	pr_info("%s: fixing console_loglevel\n", __func__);
+	*(int *)loglevel_state->data = console_loglevel;
+	console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
+}
+
+static void restore_console_loglevel(void)
+{
+	struct klp_state *loglevel_state;
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	pr_info("%s: restoring console_loglevel\n", __func__);
+	console_loglevel = *(int *)loglevel_state->data;
+}
+
+static void free_loglevel_state(void)
+{
+	struct klp_state *loglevel_state;
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	pr_info("%s: freeing space for the stored console_loglevel\n",
+		__func__);
+	kfree(loglevel_state->data);
+}
+
+/* Executed on object patching (ie, patch enablement) */
+static int pre_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	return allocate_loglevel_state();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	fix_console_loglevel();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void pre_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	restore_console_loglevel();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	free_loglevel_state();
+}
+
+static struct klp_func no_funcs[] = {
+	{}
+};
+
+static struct klp_object objs[] = {
+	{
+		.name = NULL,	/* vmlinux */
+		.funcs = no_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	}, { }
+};
+
+static struct klp_state states[] = {
+	{
+		.id = CONSOLE_LOGLEVEL_STATE,
+		.version = CONSOLE_LOGLEVEL_STATE_VERSION,
+	}, { }
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+	.states = states,
+	.replace = true,
+};
+
+static int test_klp_callbacks_demo_init(void)
+{
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_callbacks_demo_exit(void)
+{
+}
+
+module_init(test_klp_callbacks_demo_init);
+module_exit(test_klp_callbacks_demo_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Petr Mladek <pmladek@suse.com>");
+MODULE_DESCRIPTION("Livepatch test: system state modification");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_state2.c b/tools/testing/selftests/livepatch/test_modules/test_klp_state2.c
new file mode 100644
index 000000000000..c978ea4d5e67
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_state2.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 SUSE
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/printk.h>
+#include <linux/livepatch.h>
+
+#define CONSOLE_LOGLEVEL_STATE 1
+/* Version 2 supports migration. */
+#define CONSOLE_LOGLEVEL_STATE_VERSION 2
+
+static const char *const module_state[] = {
+	[MODULE_STATE_LIVE]	= "[MODULE_STATE_LIVE] Normal state",
+	[MODULE_STATE_COMING]	= "[MODULE_STATE_COMING] Full formed, running module_init",
+	[MODULE_STATE_GOING]	= "[MODULE_STATE_GOING] Going away",
+	[MODULE_STATE_UNFORMED]	= "[MODULE_STATE_UNFORMED] Still setting it up",
+};
+
+static void callback_info(const char *callback, struct klp_object *obj)
+{
+	if (obj->mod)
+		pr_info("%s: %s -> %s\n", callback, obj->mod->name,
+			module_state[obj->mod->state]);
+	else
+		pr_info("%s: vmlinux\n", callback);
+}
+
+static struct klp_patch patch;
+
+static int allocate_loglevel_state(void)
+{
+	struct klp_state *loglevel_state, *prev_loglevel_state;
+
+	prev_loglevel_state = klp_get_prev_state(CONSOLE_LOGLEVEL_STATE);
+	if (prev_loglevel_state) {
+		pr_info("%s: space to store console_loglevel already allocated\n",
+		__func__);
+		return 0;
+	}
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return -EINVAL;
+
+	loglevel_state->data = kzalloc(sizeof(console_loglevel), GFP_KERNEL);
+	if (!loglevel_state->data)
+		return -ENOMEM;
+
+	pr_info("%s: allocating space to store console_loglevel\n",
+		__func__);
+	return 0;
+}
+
+static void fix_console_loglevel(void)
+{
+	struct klp_state *loglevel_state, *prev_loglevel_state;
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	prev_loglevel_state = klp_get_prev_state(CONSOLE_LOGLEVEL_STATE);
+	if (prev_loglevel_state) {
+		pr_info("%s: taking over the console_loglevel change\n",
+		__func__);
+		loglevel_state->data = prev_loglevel_state->data;
+		return;
+	}
+
+	pr_info("%s: fixing console_loglevel\n", __func__);
+	*(int *)loglevel_state->data = console_loglevel;
+	console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
+}
+
+static void restore_console_loglevel(void)
+{
+	struct klp_state *loglevel_state, *prev_loglevel_state;
+
+	prev_loglevel_state = klp_get_prev_state(CONSOLE_LOGLEVEL_STATE);
+	if (prev_loglevel_state) {
+		pr_info("%s: passing the console_loglevel change back to the old livepatch\n",
+		__func__);
+		return;
+	}
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	pr_info("%s: restoring console_loglevel\n", __func__);
+	console_loglevel = *(int *)loglevel_state->data;
+}
+
+static void free_loglevel_state(void)
+{
+	struct klp_state *loglevel_state, *prev_loglevel_state;
+
+	prev_loglevel_state = klp_get_prev_state(CONSOLE_LOGLEVEL_STATE);
+	if (prev_loglevel_state) {
+		pr_info("%s: keeping space to store console_loglevel\n",
+		__func__);
+		return;
+	}
+
+	loglevel_state = klp_get_state(&patch, CONSOLE_LOGLEVEL_STATE);
+	if (!loglevel_state)
+		return;
+
+	pr_info("%s: freeing space for the stored console_loglevel\n",
+		__func__);
+	kfree(loglevel_state->data);
+}
+
+/* Executed on object patching (ie, patch enablement) */
+static int pre_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	return allocate_loglevel_state();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_patch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	fix_console_loglevel();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void pre_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	restore_console_loglevel();
+}
+
+/* Executed on object unpatching (ie, patch disablement) */
+static void post_unpatch_callback(struct klp_object *obj)
+{
+	callback_info(__func__, obj);
+	free_loglevel_state();
+}
+
+static struct klp_func no_funcs[] = {
+	{}
+};
+
+static struct klp_object objs[] = {
+	{
+		.name = NULL,	/* vmlinux */
+		.funcs = no_funcs,
+		.callbacks = {
+			.pre_patch = pre_patch_callback,
+			.post_patch = post_patch_callback,
+			.pre_unpatch = pre_unpatch_callback,
+			.post_unpatch = post_unpatch_callback,
+		},
+	}, { }
+};
+
+static struct klp_state states[] = {
+	{
+		.id = CONSOLE_LOGLEVEL_STATE,
+		.version = CONSOLE_LOGLEVEL_STATE_VERSION,
+	}, { }
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+	.states = states,
+	.replace = true,
+};
+
+static int test_klp_callbacks_demo_init(void)
+{
+	return klp_enable_patch(&patch);
+}
+
+static void test_klp_callbacks_demo_exit(void)
+{
+}
+
+module_init(test_klp_callbacks_demo_init);
+module_exit(test_klp_callbacks_demo_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Petr Mladek <pmladek@suse.com>");
+MODULE_DESCRIPTION("Livepatch test: system state modification");
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_state3.c b/tools/testing/selftests/livepatch/test_modules/test_klp_state3.c
new file mode 100644
index 000000000000..9226579d10c5
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_state3.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 SUSE
+
+/* The console loglevel fix is the same in the next cumulative patch. */
+#include "test_klp_state2.c"
diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
new file mode 100644
index 000000000000..dd802783ea84
--- /dev/null
+++ b/tools/testing/selftests/livepatch/test_modules/test_klp_syscall.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017-2023 SUSE
+ * Authors: Libor Pechacek <lpechacek@suse.cz>
+ *          Nicolai Stange <nstange@suse.de>
+ *          Marcos Paulo de Souza <mpdesouza@suse.com>
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/livepatch.h>
+
+#if defined(__x86_64__)
+#define FN_PREFIX __x64_
+#elif defined(__s390x__)
+#define FN_PREFIX __s390x_
+#elif defined(__aarch64__)
+#define FN_PREFIX __arm64_
+#else
+/* powerpc does not select ARCH_HAS_SYSCALL_WRAPPER */
+#define FN_PREFIX
+#endif
+
+/* Protects klp_pids */
+static DEFINE_MUTEX(kpid_mutex);
+
+static unsigned int npids, npids_pending;
+static int klp_pids[NR_CPUS];
+module_param_array(klp_pids, int, &npids_pending, 0);
+MODULE_PARM_DESC(klp_pids, "Array of pids to be transitioned to livepatched state.");
+
+static ssize_t npids_show(struct kobject *kobj, struct kobj_attribute *attr,
+			  char *buf)
+{
+	return sprintf(buf, "%u\n", npids_pending);
+}
+
+static struct kobj_attribute klp_attr = __ATTR_RO(npids);
+static struct kobject *klp_kobj;
+
+static asmlinkage long lp_sys_getpid(void)
+{
+	int i;
+
+	mutex_lock(&kpid_mutex);
+	if (npids_pending > 0) {
+		for (i = 0; i < npids; i++) {
+			if (current->pid == klp_pids[i]) {
+				klp_pids[i] = 0;
+				npids_pending--;
+				break;
+			}
+		}
+	}
+	mutex_unlock(&kpid_mutex);
+
+	return task_tgid_vnr(current);
+}
+
+static struct klp_func vmlinux_funcs[] = {
+	{
+		.old_name = __stringify(FN_PREFIX) "sys_getpid",
+		.new_func = lp_sys_getpid,
+	}, {}
+};
+
+static struct klp_object objs[] = {
+	{
+		/* name being NULL means vmlinux */
+		.funcs = vmlinux_funcs,
+	}, {}
+};
+
+static struct klp_patch patch = {
+	.mod = THIS_MODULE,
+	.objs = objs,
+};
+
+static int livepatch_init(void)
+{
+	int ret;
+
+	klp_kobj = kobject_create_and_add("test_klp_syscall", kernel_kobj);
+	if (!klp_kobj)
+		return -ENOMEM;
+
+	ret = sysfs_create_file(klp_kobj, &klp_attr.attr);
+	if (ret) {
+		kobject_put(klp_kobj);
+		return ret;
+	}
+
+	/*
+	 * Save the number pids to transition to livepatched state before the
+	 * number of pending pids is decremented.
+	 */
+	npids = npids_pending;
+
+	return klp_enable_patch(&patch);
+}
+
+static void livepatch_exit(void)
+{
+	kobject_put(klp_kobj);
+}
+
+module_init(livepatch_init);
+module_exit(livepatch_exit);
+MODULE_LICENSE("GPL");
+MODULE_INFO(livepatch, "Y");
+MODULE_AUTHOR("Libor Pechacek <lpechacek@suse.cz>");
+MODULE_AUTHOR("Nicolai Stange <nstange@suse.de>");
+MODULE_AUTHOR("Marcos Paulo de Souza <mpdesouza@suse.com>");
+MODULE_DESCRIPTION("Livepatch test: syscall transition");
diff --git a/tools/testing/selftests/liveupdate/.gitignore b/tools/testing/selftests/liveupdate/.gitignore
new file mode 100644
index 000000000000..661827083ab6
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/.gitignore
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0-only
+*
+!/**/
+!*.c
+!*.h
+!*.sh
+!.gitignore
+!config
+!Makefile
diff --git a/tools/testing/selftests/liveupdate/Makefile b/tools/testing/selftests/liveupdate/Makefile
new file mode 100644
index 000000000000..080754787ede
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/Makefile
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+LIB_C += luo_test_utils.c
+
+TEST_GEN_PROGS += liveupdate
+
+TEST_GEN_PROGS_EXTENDED += luo_kexec_simple
+TEST_GEN_PROGS_EXTENDED += luo_multi_session
+
+TEST_FILES += do_kexec.sh
+
+include ../lib.mk
+
+CFLAGS += $(KHDR_INCLUDES)
+CFLAGS += -Wall -O2 -Wno-unused-function
+CFLAGS += -MD
+
+LIB_O := $(patsubst %.c, $(OUTPUT)/%.o, $(LIB_C))
+TEST_O := $(patsubst %, %.o, $(TEST_GEN_PROGS))
+TEST_O += $(patsubst %, %.o, $(TEST_GEN_PROGS_EXTENDED))
+
+TEST_DEP_FILES := $(patsubst %.o, %.d, $(LIB_O))
+TEST_DEP_FILES += $(patsubst %.o, %.d, $(TEST_O))
+-include $(TEST_DEP_FILES)
+
+$(LIB_O): $(OUTPUT)/%.o: %.c
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c $< -o $@
+
+$(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED): $(OUTPUT)/%: %.o $(LIB_O)
+	$(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH) $< $(LIB_O) $(LDLIBS) -o $@
+
+EXTRA_CLEAN += $(LIB_O)
+EXTRA_CLEAN += $(TEST_O)
+EXTRA_CLEAN += $(TEST_DEP_FILES)
diff --git a/tools/testing/selftests/liveupdate/config b/tools/testing/selftests/liveupdate/config
new file mode 100644
index 000000000000..91d03f9a6a39
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/config
@@ -0,0 +1,11 @@
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_KEXEC_FILE=y
+CONFIG_KEXEC_HANDOVER=y
+CONFIG_KEXEC_HANDOVER_ENABLE_DEFAULT=y
+CONFIG_KEXEC_HANDOVER_DEBUGFS=y
+CONFIG_KEXEC_HANDOVER_DEBUG=y
+CONFIG_LIVEUPDATE=y
+CONFIG_LIVEUPDATE_TEST=y
+CONFIG_MEMFD_CREATE=y
+CONFIG_TMPFS=y
+CONFIG_SHMEM=y
diff --git a/tools/testing/selftests/liveupdate/do_kexec.sh b/tools/testing/selftests/liveupdate/do_kexec.sh
new file mode 100755
index 000000000000..3c7c6cafbef8
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/do_kexec.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+set -e
+
+# Use $KERNEL and $INITRAMFS to pass custom Kernel and optional initramfs
+
+KERNEL="${KERNEL:-/boot/bzImage}"
+set -- -l -s --reuse-cmdline "$KERNEL"
+
+INITRAMFS="${INITRAMFS:-/boot/initramfs}"
+if [ -f "$INITRAMFS" ]; then
+    set -- "$@" --initrd="$INITRAMFS"
+fi
+
+kexec "$@"
+kexec -e
diff --git a/tools/testing/selftests/liveupdate/liveupdate.c b/tools/testing/selftests/liveupdate/liveupdate.c
new file mode 100644
index 000000000000..c2878e3d5ef9
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/liveupdate.c
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright (c) 2025, Google LLC.
+ * Pasha Tatashin <pasha.tatashin@soleen.com>
+ */
+
+/*
+ * Selftests for the Live Update Orchestrator.
+ * This test suite verifies the functionality and behavior of the
+ * /dev/liveupdate character device and its session management capabilities.
+ *
+ * Tests include:
+ * - Device access: basic open/close, and enforcement of exclusive access.
+ * - Session management: creation of unique sessions, and duplicate name detection.
+ * - Resource preservation: successfully preserving individual and multiple memfds,
+ *   verifying contents remain accessible.
+ * - Complex multi-session scenarios involving mixed empty and populated files.
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <linux/liveupdate.h>
+
+#include "../kselftest.h"
+#include "../kselftest_harness.h"
+
+#define LIVEUPDATE_DEV "/dev/liveupdate"
+
+FIXTURE(liveupdate_device) {
+	int fd1;
+	int fd2;
+};
+
+FIXTURE_SETUP(liveupdate_device)
+{
+	self->fd1 = -1;
+	self->fd2 = -1;
+}
+
+FIXTURE_TEARDOWN(liveupdate_device)
+{
+	if (self->fd1 >= 0)
+		close(self->fd1);
+	if (self->fd2 >= 0)
+		close(self->fd2);
+}
+
+/*
+ * Test Case: Basic Open and Close
+ *
+ * Verifies that the /dev/liveupdate device can be opened and subsequently
+ * closed without errors. Skips if the device does not exist.
+ */
+TEST_F(liveupdate_device, basic_open_close)
+{
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist.", LIVEUPDATE_DEV);
+
+	ASSERT_GE(self->fd1, 0);
+	ASSERT_EQ(close(self->fd1), 0);
+	self->fd1 = -1;
+}
+
+/*
+ * Test Case: Exclusive Open Enforcement
+ *
+ * Verifies that the /dev/liveupdate device can only be opened by one process
+ * at a time. It checks that a second attempt to open the device fails with
+ * the EBUSY error code.
+ */
+TEST_F(liveupdate_device, exclusive_open)
+{
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist.", LIVEUPDATE_DEV);
+
+	ASSERT_GE(self->fd1, 0);
+	self->fd2 = open(LIVEUPDATE_DEV, O_RDWR);
+	EXPECT_LT(self->fd2, 0);
+	EXPECT_EQ(errno, EBUSY);
+}
+
+/* Helper function to create a LUO session via ioctl. */
+static int create_session(int lu_fd, const char *name)
+{
+	struct liveupdate_ioctl_create_session args = {};
+
+	args.size = sizeof(args);
+	strncpy((char *)args.name, name, sizeof(args.name) - 1);
+
+	if (ioctl(lu_fd, LIVEUPDATE_IOCTL_CREATE_SESSION, &args))
+		return -errno;
+
+	return args.fd;
+}
+
+/*
+ * Test Case: Create Duplicate Session
+ *
+ * Verifies that attempting to create two sessions with the same name fails
+ * on the second attempt with EEXIST.
+ */
+TEST_F(liveupdate_device, create_duplicate_session)
+{
+	int session_fd1, session_fd2;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd1 = create_session(self->fd1, "duplicate-session-test");
+	ASSERT_GE(session_fd1, 0);
+
+	session_fd2 = create_session(self->fd1, "duplicate-session-test");
+	EXPECT_LT(session_fd2, 0);
+	EXPECT_EQ(-session_fd2, EEXIST);
+
+	ASSERT_EQ(close(session_fd1), 0);
+}
+
+/*
+ * Test Case: Create Distinct Sessions
+ *
+ * Verifies that creating two sessions with different names succeeds.
+ */
+TEST_F(liveupdate_device, create_distinct_sessions)
+{
+	int session_fd1, session_fd2;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd1 = create_session(self->fd1, "distinct-session-1");
+	ASSERT_GE(session_fd1, 0);
+
+	session_fd2 = create_session(self->fd1, "distinct-session-2");
+	ASSERT_GE(session_fd2, 0);
+
+	ASSERT_EQ(close(session_fd1), 0);
+	ASSERT_EQ(close(session_fd2), 0);
+}
+
+static int preserve_fd(int session_fd, int fd_to_preserve, __u64 token)
+{
+	struct liveupdate_session_preserve_fd args = {};
+
+	args.size = sizeof(args);
+	args.fd = fd_to_preserve;
+	args.token = token;
+
+	if (ioctl(session_fd, LIVEUPDATE_SESSION_PRESERVE_FD, &args))
+		return -errno;
+
+	return 0;
+}
+
+/*
+ * Test Case: Preserve MemFD
+ *
+ * Verifies that a valid memfd can be successfully preserved in a session and
+ * that its contents remain intact after the preservation call.
+ */
+TEST_F(liveupdate_device, preserve_memfd)
+{
+	const char *test_str = "hello liveupdate";
+	char read_buf[64] = {};
+	int session_fd, mem_fd;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd = create_session(self->fd1, "preserve-memfd-test");
+	ASSERT_GE(session_fd, 0);
+
+	mem_fd = memfd_create("test-memfd", 0);
+	ASSERT_GE(mem_fd, 0);
+
+	ASSERT_EQ(write(mem_fd, test_str, strlen(test_str)), strlen(test_str));
+	ASSERT_EQ(preserve_fd(session_fd, mem_fd, 0x1234), 0);
+	ASSERT_EQ(close(session_fd), 0);
+
+	ASSERT_EQ(lseek(mem_fd, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd, read_buf, sizeof(read_buf)), strlen(test_str));
+	ASSERT_STREQ(read_buf, test_str);
+	ASSERT_EQ(close(mem_fd), 0);
+}
+
+/*
+ * Test Case: Preserve Multiple MemFDs
+ *
+ * Verifies that multiple memfds can be preserved in a single session,
+ * each with a unique token, and that their contents remain distinct and
+ * correct after preservation.
+ */
+TEST_F(liveupdate_device, preserve_multiple_memfds)
+{
+	const char *test_str1 = "data for memfd one";
+	const char *test_str2 = "data for memfd two";
+	char read_buf[64] = {};
+	int session_fd, mem_fd1, mem_fd2;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd = create_session(self->fd1, "preserve-multi-memfd-test");
+	ASSERT_GE(session_fd, 0);
+
+	mem_fd1 = memfd_create("test-memfd-1", 0);
+	ASSERT_GE(mem_fd1, 0);
+	mem_fd2 = memfd_create("test-memfd-2", 0);
+	ASSERT_GE(mem_fd2, 0);
+
+	ASSERT_EQ(write(mem_fd1, test_str1, strlen(test_str1)), strlen(test_str1));
+	ASSERT_EQ(write(mem_fd2, test_str2, strlen(test_str2)), strlen(test_str2));
+
+	ASSERT_EQ(preserve_fd(session_fd, mem_fd1, 0xAAAA), 0);
+	ASSERT_EQ(preserve_fd(session_fd, mem_fd2, 0xBBBB), 0);
+
+	memset(read_buf, 0, sizeof(read_buf));
+	ASSERT_EQ(lseek(mem_fd1, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd1, read_buf, sizeof(read_buf)), strlen(test_str1));
+	ASSERT_STREQ(read_buf, test_str1);
+
+	memset(read_buf, 0, sizeof(read_buf));
+	ASSERT_EQ(lseek(mem_fd2, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd2, read_buf, sizeof(read_buf)), strlen(test_str2));
+	ASSERT_STREQ(read_buf, test_str2);
+
+	ASSERT_EQ(close(mem_fd1), 0);
+	ASSERT_EQ(close(mem_fd2), 0);
+	ASSERT_EQ(close(session_fd), 0);
+}
+
+/*
+ * Test Case: Preserve Complex Scenario
+ *
+ * Verifies a more complex scenario with multiple sessions and a mix of empty
+ * and non-empty memfds distributed across them.
+ */
+TEST_F(liveupdate_device, preserve_complex_scenario)
+{
+	const char *data1 = "data for session 1";
+	const char *data2 = "data for session 2";
+	char read_buf[64] = {};
+	int session_fd1, session_fd2;
+	int mem_fd_data1, mem_fd_empty1, mem_fd_data2, mem_fd_empty2;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd1 = create_session(self->fd1, "complex-session-1");
+	ASSERT_GE(session_fd1, 0);
+	session_fd2 = create_session(self->fd1, "complex-session-2");
+	ASSERT_GE(session_fd2, 0);
+
+	mem_fd_data1 = memfd_create("data1", 0);
+	ASSERT_GE(mem_fd_data1, 0);
+	ASSERT_EQ(write(mem_fd_data1, data1, strlen(data1)), strlen(data1));
+
+	mem_fd_empty1 = memfd_create("empty1", 0);
+	ASSERT_GE(mem_fd_empty1, 0);
+
+	mem_fd_data2 = memfd_create("data2", 0);
+	ASSERT_GE(mem_fd_data2, 0);
+	ASSERT_EQ(write(mem_fd_data2, data2, strlen(data2)), strlen(data2));
+
+	mem_fd_empty2 = memfd_create("empty2", 0);
+	ASSERT_GE(mem_fd_empty2, 0);
+
+	ASSERT_EQ(preserve_fd(session_fd1, mem_fd_data1, 0x1111), 0);
+	ASSERT_EQ(preserve_fd(session_fd1, mem_fd_empty1, 0x2222), 0);
+	ASSERT_EQ(preserve_fd(session_fd2, mem_fd_data2, 0x3333), 0);
+	ASSERT_EQ(preserve_fd(session_fd2, mem_fd_empty2, 0x4444), 0);
+
+	ASSERT_EQ(lseek(mem_fd_data1, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd_data1, read_buf, sizeof(read_buf)), strlen(data1));
+	ASSERT_STREQ(read_buf, data1);
+
+	memset(read_buf, 0, sizeof(read_buf));
+	ASSERT_EQ(lseek(mem_fd_data2, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd_data2, read_buf, sizeof(read_buf)), strlen(data2));
+	ASSERT_STREQ(read_buf, data2);
+
+	ASSERT_EQ(lseek(mem_fd_empty1, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd_empty1, read_buf, sizeof(read_buf)), 0);
+
+	ASSERT_EQ(lseek(mem_fd_empty2, 0, SEEK_SET), 0);
+	ASSERT_EQ(read(mem_fd_empty2, read_buf, sizeof(read_buf)), 0);
+
+	ASSERT_EQ(close(mem_fd_data1), 0);
+	ASSERT_EQ(close(mem_fd_empty1), 0);
+	ASSERT_EQ(close(mem_fd_data2), 0);
+	ASSERT_EQ(close(mem_fd_empty2), 0);
+	ASSERT_EQ(close(session_fd1), 0);
+	ASSERT_EQ(close(session_fd2), 0);
+}
+
+/*
+ * Test Case: Preserve Unsupported File Descriptor
+ *
+ * Verifies that attempting to preserve a file descriptor that does not have
+ * a registered Live Update handler fails gracefully.
+ * Uses /dev/null as a representative of a file type (character device)
+ * that is not supported by the orchestrator.
+ */
+TEST_F(liveupdate_device, preserve_unsupported_fd)
+{
+	int session_fd, unsupported_fd;
+	int ret;
+
+	self->fd1 = open(LIVEUPDATE_DEV, O_RDWR);
+	if (self->fd1 < 0 && errno == ENOENT)
+		SKIP(return, "%s does not exist", LIVEUPDATE_DEV);
+	ASSERT_GE(self->fd1, 0);
+
+	session_fd = create_session(self->fd1, "unsupported-fd-test");
+	ASSERT_GE(session_fd, 0);
+
+	unsupported_fd = open("/dev/null", O_RDWR);
+	ASSERT_GE(unsupported_fd, 0);
+
+	ret = preserve_fd(session_fd, unsupported_fd, 0xDEAD);
+	EXPECT_EQ(ret, -ENOENT);
+
+	ASSERT_EQ(close(unsupported_fd), 0);
+	ASSERT_EQ(close(session_fd), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/liveupdate/luo_kexec_simple.c b/tools/testing/selftests/liveupdate/luo_kexec_simple.c
new file mode 100644
index 000000000000..d7ac1f3dc4cb
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/luo_kexec_simple.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright (c) 2025, Google LLC.
+ * Pasha Tatashin <pasha.tatashin@soleen.com>
+ *
+ * A simple selftest to validate the end-to-end lifecycle of a LUO session
+ * across a single kexec reboot.
+ */
+
+#include "luo_test_utils.h"
+
+#define TEST_SESSION_NAME "test-session"
+#define TEST_MEMFD_TOKEN 0x1A
+#define TEST_MEMFD_DATA "hello kexec world"
+
+/* Constants for the state-tracking mechanism, specific to this test file. */
+#define STATE_SESSION_NAME "kexec_simple_state"
+#define STATE_MEMFD_TOKEN 999
+
+/* Stage 1: Executed before the kexec reboot. */
+static void run_stage_1(int luo_fd)
+{
+	int session_fd;
+
+	ksft_print_msg("[STAGE 1] Starting pre-kexec setup...\n");
+
+	ksft_print_msg("[STAGE 1] Creating state file for next stage (2)...\n");
+	create_state_file(luo_fd, STATE_SESSION_NAME, STATE_MEMFD_TOKEN, 2);
+
+	ksft_print_msg("[STAGE 1] Creating session '%s' and preserving memfd...\n",
+		       TEST_SESSION_NAME);
+	session_fd = luo_create_session(luo_fd, TEST_SESSION_NAME);
+	if (session_fd < 0)
+		fail_exit("luo_create_session for '%s'", TEST_SESSION_NAME);
+
+	if (create_and_preserve_memfd(session_fd, TEST_MEMFD_TOKEN,
+				      TEST_MEMFD_DATA) < 0) {
+		fail_exit("create_and_preserve_memfd for token %#x",
+			  TEST_MEMFD_TOKEN);
+	}
+
+	close(luo_fd);
+	daemonize_and_wait();
+}
+
+/* Stage 2: Executed after the kexec reboot. */
+static void run_stage_2(int luo_fd, int state_session_fd)
+{
+	int session_fd, mfd, stage;
+
+	ksft_print_msg("[STAGE 2] Starting post-kexec verification...\n");
+
+	restore_and_read_stage(state_session_fd, STATE_MEMFD_TOKEN, &stage);
+	if (stage != 2)
+		fail_exit("Expected stage 2, but state file contains %d", stage);
+
+	ksft_print_msg("[STAGE 2] Retrieving session '%s'...\n", TEST_SESSION_NAME);
+	session_fd = luo_retrieve_session(luo_fd, TEST_SESSION_NAME);
+	if (session_fd < 0)
+		fail_exit("luo_retrieve_session for '%s'", TEST_SESSION_NAME);
+
+	ksft_print_msg("[STAGE 2] Restoring and verifying memfd (token %#x)...\n",
+		       TEST_MEMFD_TOKEN);
+	mfd = restore_and_verify_memfd(session_fd, TEST_MEMFD_TOKEN,
+				       TEST_MEMFD_DATA);
+	if (mfd < 0)
+		fail_exit("restore_and_verify_memfd for token %#x", TEST_MEMFD_TOKEN);
+	close(mfd);
+
+	ksft_print_msg("[STAGE 2] Test data verified successfully.\n");
+	ksft_print_msg("[STAGE 2] Finalizing test session...\n");
+	if (luo_session_finish(session_fd) < 0)
+		fail_exit("luo_session_finish for test session");
+	close(session_fd);
+
+	ksft_print_msg("[STAGE 2] Finalizing state session...\n");
+	if (luo_session_finish(state_session_fd) < 0)
+		fail_exit("luo_session_finish for state session");
+	close(state_session_fd);
+
+	ksft_print_msg("\n--- SIMPLE KEXEC TEST PASSED ---\n");
+}
+
+int main(int argc, char *argv[])
+{
+	return luo_test(argc, argv, STATE_SESSION_NAME,
+			run_stage_1, run_stage_2);
+}
diff --git a/tools/testing/selftests/liveupdate/luo_multi_session.c b/tools/testing/selftests/liveupdate/luo_multi_session.c
new file mode 100644
index 000000000000..0ee2d795beef
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/luo_multi_session.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright (c) 2025, Google LLC.
+ * Pasha Tatashin <pasha.tatashin@soleen.com>
+ *
+ * A selftest to validate the end-to-end lifecycle of multiple LUO sessions
+ * across a kexec reboot, including empty sessions and sessions with multiple
+ * files.
+ */
+
+#include "luo_test_utils.h"
+
+#define SESSION_EMPTY_1 "multi-test-empty-1"
+#define SESSION_EMPTY_2 "multi-test-empty-2"
+#define SESSION_FILES_1 "multi-test-files-1"
+#define SESSION_FILES_2 "multi-test-files-2"
+
+#define MFD1_TOKEN 0x1001
+#define MFD2_TOKEN 0x2002
+#define MFD3_TOKEN 0x3003
+
+#define MFD1_DATA "Data for session files 1"
+#define MFD2_DATA "First file for session files 2"
+#define MFD3_DATA "Second file for session files 2"
+
+#define STATE_SESSION_NAME "kexec_multi_state"
+#define STATE_MEMFD_TOKEN 998
+
+/* Stage 1: Executed before the kexec reboot. */
+static void run_stage_1(int luo_fd)
+{
+	int s_empty1_fd, s_empty2_fd, s_files1_fd, s_files2_fd;
+
+	ksft_print_msg("[STAGE 1] Starting pre-kexec setup for multi-session test...\n");
+
+	ksft_print_msg("[STAGE 1] Creating state file for next stage (2)...\n");
+	create_state_file(luo_fd, STATE_SESSION_NAME, STATE_MEMFD_TOKEN, 2);
+
+	ksft_print_msg("[STAGE 1] Creating empty sessions '%s' and '%s'...\n",
+		       SESSION_EMPTY_1, SESSION_EMPTY_2);
+	s_empty1_fd = luo_create_session(luo_fd, SESSION_EMPTY_1);
+	if (s_empty1_fd < 0)
+		fail_exit("luo_create_session for '%s'", SESSION_EMPTY_1);
+
+	s_empty2_fd = luo_create_session(luo_fd, SESSION_EMPTY_2);
+	if (s_empty2_fd < 0)
+		fail_exit("luo_create_session for '%s'", SESSION_EMPTY_2);
+
+	ksft_print_msg("[STAGE 1] Creating session '%s' with one memfd...\n",
+		       SESSION_FILES_1);
+
+	s_files1_fd = luo_create_session(luo_fd, SESSION_FILES_1);
+	if (s_files1_fd < 0)
+		fail_exit("luo_create_session for '%s'", SESSION_FILES_1);
+	if (create_and_preserve_memfd(s_files1_fd, MFD1_TOKEN, MFD1_DATA) < 0) {
+		fail_exit("create_and_preserve_memfd for token %#x",
+			  MFD1_TOKEN);
+	}
+
+	ksft_print_msg("[STAGE 1] Creating session '%s' with two memfds...\n",
+		       SESSION_FILES_2);
+
+	s_files2_fd = luo_create_session(luo_fd, SESSION_FILES_2);
+	if (s_files2_fd < 0)
+		fail_exit("luo_create_session for '%s'", SESSION_FILES_2);
+	if (create_and_preserve_memfd(s_files2_fd, MFD2_TOKEN, MFD2_DATA) < 0) {
+		fail_exit("create_and_preserve_memfd for token %#x",
+			  MFD2_TOKEN);
+	}
+	if (create_and_preserve_memfd(s_files2_fd, MFD3_TOKEN, MFD3_DATA) < 0) {
+		fail_exit("create_and_preserve_memfd for token %#x",
+			  MFD3_TOKEN);
+	}
+
+	close(luo_fd);
+	daemonize_and_wait();
+}
+
+/* Stage 2: Executed after the kexec reboot. */
+static void run_stage_2(int luo_fd, int state_session_fd)
+{
+	int s_empty1_fd, s_empty2_fd, s_files1_fd, s_files2_fd;
+	int mfd1, mfd2, mfd3, stage;
+
+	ksft_print_msg("[STAGE 2] Starting post-kexec verification...\n");
+
+	restore_and_read_stage(state_session_fd, STATE_MEMFD_TOKEN, &stage);
+	if (stage != 2) {
+		fail_exit("Expected stage 2, but state file contains %d",
+			  stage);
+	}
+
+	ksft_print_msg("[STAGE 2] Retrieving all sessions...\n");
+	s_empty1_fd = luo_retrieve_session(luo_fd, SESSION_EMPTY_1);
+	if (s_empty1_fd < 0)
+		fail_exit("luo_retrieve_session for '%s'", SESSION_EMPTY_1);
+
+	s_empty2_fd = luo_retrieve_session(luo_fd, SESSION_EMPTY_2);
+	if (s_empty2_fd < 0)
+		fail_exit("luo_retrieve_session for '%s'", SESSION_EMPTY_2);
+
+	s_files1_fd = luo_retrieve_session(luo_fd, SESSION_FILES_1);
+	if (s_files1_fd < 0)
+		fail_exit("luo_retrieve_session for '%s'", SESSION_FILES_1);
+
+	s_files2_fd = luo_retrieve_session(luo_fd, SESSION_FILES_2);
+	if (s_files2_fd < 0)
+		fail_exit("luo_retrieve_session for '%s'", SESSION_FILES_2);
+
+	ksft_print_msg("[STAGE 2] Verifying contents of session '%s'...\n",
+		       SESSION_FILES_1);
+	mfd1 = restore_and_verify_memfd(s_files1_fd, MFD1_TOKEN, MFD1_DATA);
+	if (mfd1 < 0)
+		fail_exit("restore_and_verify_memfd for token %#x", MFD1_TOKEN);
+	close(mfd1);
+
+	ksft_print_msg("[STAGE 2] Verifying contents of session '%s'...\n",
+		       SESSION_FILES_2);
+
+	mfd2 = restore_and_verify_memfd(s_files2_fd, MFD2_TOKEN, MFD2_DATA);
+	if (mfd2 < 0)
+		fail_exit("restore_and_verify_memfd for token %#x", MFD2_TOKEN);
+	close(mfd2);
+
+	mfd3 = restore_and_verify_memfd(s_files2_fd, MFD3_TOKEN, MFD3_DATA);
+	if (mfd3 < 0)
+		fail_exit("restore_and_verify_memfd for token %#x", MFD3_TOKEN);
+	close(mfd3);
+
+	ksft_print_msg("[STAGE 2] Test data verified successfully.\n");
+
+	ksft_print_msg("[STAGE 2] Finalizing all test sessions...\n");
+	if (luo_session_finish(s_empty1_fd) < 0)
+		fail_exit("luo_session_finish for '%s'", SESSION_EMPTY_1);
+	close(s_empty1_fd);
+
+	if (luo_session_finish(s_empty2_fd) < 0)
+		fail_exit("luo_session_finish for '%s'", SESSION_EMPTY_2);
+	close(s_empty2_fd);
+
+	if (luo_session_finish(s_files1_fd) < 0)
+		fail_exit("luo_session_finish for '%s'", SESSION_FILES_1);
+	close(s_files1_fd);
+
+	if (luo_session_finish(s_files2_fd) < 0)
+		fail_exit("luo_session_finish for '%s'", SESSION_FILES_2);
+	close(s_files2_fd);
+
+	ksft_print_msg("[STAGE 2] Finalizing state session...\n");
+	if (luo_session_finish(state_session_fd) < 0)
+		fail_exit("luo_session_finish for state session");
+	close(state_session_fd);
+
+	ksft_print_msg("\n--- MULTI-SESSION KEXEC TEST PASSED ---\n");
+}
+
+int main(int argc, char *argv[])
+{
+	return luo_test(argc, argv, STATE_SESSION_NAME,
+			run_stage_1, run_stage_2);
+}
diff --git a/tools/testing/selftests/liveupdate/luo_test_utils.c b/tools/testing/selftests/liveupdate/luo_test_utils.c
new file mode 100644
index 000000000000..3c8721c505df
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/luo_test_utils.c
@@ -0,0 +1,266 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+/*
+ * Copyright (c) 2025, Google LLC.
+ * Pasha Tatashin <pasha.tatashin@soleen.com>
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <stdarg.h>
+
+#include "luo_test_utils.h"
+
+int luo_open_device(void)
+{
+	return open(LUO_DEVICE, O_RDWR);
+}
+
+int luo_create_session(int luo_fd, const char *name)
+{
+	struct liveupdate_ioctl_create_session arg = { .size = sizeof(arg) };
+
+	snprintf((char *)arg.name, LIVEUPDATE_SESSION_NAME_LENGTH, "%.*s",
+		 LIVEUPDATE_SESSION_NAME_LENGTH - 1, name);
+
+	if (ioctl(luo_fd, LIVEUPDATE_IOCTL_CREATE_SESSION, &arg) < 0)
+		return -errno;
+
+	return arg.fd;
+}
+
+int luo_retrieve_session(int luo_fd, const char *name)
+{
+	struct liveupdate_ioctl_retrieve_session arg = { .size = sizeof(arg) };
+
+	snprintf((char *)arg.name, LIVEUPDATE_SESSION_NAME_LENGTH, "%.*s",
+		 LIVEUPDATE_SESSION_NAME_LENGTH - 1, name);
+
+	if (ioctl(luo_fd, LIVEUPDATE_IOCTL_RETRIEVE_SESSION, &arg) < 0)
+		return -errno;
+
+	return arg.fd;
+}
+
+int create_and_preserve_memfd(int session_fd, int token, const char *data)
+{
+	struct liveupdate_session_preserve_fd arg = { .size = sizeof(arg) };
+	long page_size = sysconf(_SC_PAGE_SIZE);
+	void *map = MAP_FAILED;
+	int mfd = -1, ret = -1;
+
+	mfd = memfd_create("test_mfd", 0);
+	if (mfd < 0)
+		return -errno;
+
+	if (ftruncate(mfd, page_size) != 0)
+		goto out;
+
+	map = mmap(NULL, page_size, PROT_WRITE, MAP_SHARED, mfd, 0);
+	if (map == MAP_FAILED)
+		goto out;
+
+	snprintf(map, page_size, "%s", data);
+	munmap(map, page_size);
+
+	arg.fd = mfd;
+	arg.token = token;
+	if (ioctl(session_fd, LIVEUPDATE_SESSION_PRESERVE_FD, &arg) < 0)
+		goto out;
+
+	ret = 0;
+out:
+	if (ret != 0 && errno != 0)
+		ret = -errno;
+	if (mfd >= 0)
+		close(mfd);
+	return ret;
+}
+
+int restore_and_verify_memfd(int session_fd, int token,
+			     const char *expected_data)
+{
+	struct liveupdate_session_retrieve_fd arg = { .size = sizeof(arg) };
+	long page_size = sysconf(_SC_PAGE_SIZE);
+	void *map = MAP_FAILED;
+	int mfd = -1, ret = -1;
+
+	arg.token = token;
+	if (ioctl(session_fd, LIVEUPDATE_SESSION_RETRIEVE_FD, &arg) < 0)
+		return -errno;
+	mfd = arg.fd;
+
+	map = mmap(NULL, page_size, PROT_READ, MAP_SHARED, mfd, 0);
+	if (map == MAP_FAILED)
+		goto out;
+
+	if (expected_data && strcmp(expected_data, map) != 0) {
+		ksft_print_msg("Data mismatch! Expected '%s', Got '%s'\n",
+			       expected_data, (char *)map);
+		ret = -EINVAL;
+		goto out_munmap;
+	}
+
+	ret = mfd;
+out_munmap:
+	munmap(map, page_size);
+out:
+	if (ret < 0 && errno != 0)
+		ret = -errno;
+	if (ret < 0 && mfd >= 0)
+		close(mfd);
+	return ret;
+}
+
+int luo_session_finish(int session_fd)
+{
+	struct liveupdate_session_finish arg = { .size = sizeof(arg) };
+
+	if (ioctl(session_fd, LIVEUPDATE_SESSION_FINISH, &arg) < 0)
+		return -errno;
+
+	return 0;
+}
+
+void create_state_file(int luo_fd, const char *session_name, int token,
+		       int next_stage)
+{
+	char buf[32];
+	int state_session_fd;
+
+	state_session_fd = luo_create_session(luo_fd, session_name);
+	if (state_session_fd < 0)
+		fail_exit("luo_create_session for state tracking");
+
+	snprintf(buf, sizeof(buf), "%d", next_stage);
+	if (create_and_preserve_memfd(state_session_fd, token, buf) < 0)
+		fail_exit("create_and_preserve_memfd for state tracking");
+
+	/*
+	 * DO NOT close session FD, otherwise it is going to be unpreserved
+	 */
+}
+
+void restore_and_read_stage(int state_session_fd, int token, int *stage)
+{
+	char buf[32] = {0};
+	int mfd;
+
+	mfd = restore_and_verify_memfd(state_session_fd, token, NULL);
+	if (mfd < 0)
+		fail_exit("failed to restore state memfd");
+
+	if (read(mfd, buf, sizeof(buf) - 1) < 0)
+		fail_exit("failed to read state mfd");
+
+	*stage = atoi(buf);
+
+	close(mfd);
+}
+
+void daemonize_and_wait(void)
+{
+	pid_t pid;
+
+	ksft_print_msg("[STAGE 1] Forking persistent child to hold sessions...\n");
+
+	pid = fork();
+	if (pid < 0)
+		fail_exit("fork failed");
+
+	if (pid > 0) {
+		ksft_print_msg("[STAGE 1] Child PID: %d. Resources are pinned.\n", pid);
+		ksft_print_msg("[STAGE 1] You may now perform kexec reboot.\n");
+		exit(EXIT_SUCCESS);
+	}
+
+	/* Detach from terminal so closing the window doesn't kill us */
+	if (setsid() < 0)
+		fail_exit("setsid failed");
+
+	close(STDIN_FILENO);
+	close(STDOUT_FILENO);
+	close(STDERR_FILENO);
+
+	/* Change dir to root to avoid locking filesystems */
+	if (chdir("/") < 0)
+		exit(EXIT_FAILURE);
+
+	while (1)
+		sleep(60);
+}
+
+static int parse_stage_args(int argc, char *argv[])
+{
+	static struct option long_options[] = {
+		{"stage", required_argument, 0, 's'},
+		{0, 0, 0, 0}
+	};
+	int option_index = 0;
+	int stage = 1;
+	int opt;
+
+	optind = 1;
+	while ((opt = getopt_long(argc, argv, "s:", long_options, &option_index)) != -1) {
+		switch (opt) {
+		case 's':
+			stage = atoi(optarg);
+			if (stage != 1 && stage != 2)
+				fail_exit("Invalid stage argument");
+			break;
+		default:
+			fail_exit("Unknown argument");
+		}
+	}
+	return stage;
+}
+
+int luo_test(int argc, char *argv[],
+	     const char *state_session_name,
+	     luo_test_stage1_fn stage1,
+	     luo_test_stage2_fn stage2)
+{
+	int target_stage = parse_stage_args(argc, argv);
+	int luo_fd = luo_open_device();
+	int state_session_fd;
+	int detected_stage;
+
+	if (luo_fd < 0) {
+		ksft_exit_skip("Failed to open %s. Is the luo module loaded?\n",
+			       LUO_DEVICE);
+	}
+
+	state_session_fd = luo_retrieve_session(luo_fd, state_session_name);
+	if (state_session_fd == -ENOENT)
+		detected_stage = 1;
+	else if (state_session_fd >= 0)
+		detected_stage = 2;
+	else
+		fail_exit("Failed to check for state session");
+
+	if (target_stage != detected_stage) {
+		ksft_exit_fail_msg("Stage mismatch Requested --stage %d, but system is in stage %d.\n"
+				   "(State session %s: %s)\n",
+				   target_stage, detected_stage, state_session_name,
+				   (detected_stage == 2) ? "EXISTS" : "MISSING");
+	}
+
+	if (target_stage == 1)
+		stage1(luo_fd);
+	else
+		stage2(luo_fd, state_session_fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/liveupdate/luo_test_utils.h b/tools/testing/selftests/liveupdate/luo_test_utils.h
new file mode 100644
index 000000000000..90099bf49577
--- /dev/null
+++ b/tools/testing/selftests/liveupdate/luo_test_utils.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Copyright (c) 2025, Google LLC.
+ * Pasha Tatashin <pasha.tatashin@soleen.com>
+ *
+ * Utility functions for LUO kselftests.
+ */
+
+#ifndef LUO_TEST_UTILS_H
+#define LUO_TEST_UTILS_H
+
+#include <errno.h>
+#include <string.h>
+#include <linux/liveupdate.h>
+#include "../kselftest.h"
+
+#define LUO_DEVICE "/dev/liveupdate"
+
+#define fail_exit(fmt, ...)						\
+	ksft_exit_fail_msg("[%s:%d] " fmt " (errno: %s)\n",	\
+			   __func__, __LINE__, ##__VA_ARGS__, strerror(errno))
+
+int luo_open_device(void);
+int luo_create_session(int luo_fd, const char *name);
+int luo_retrieve_session(int luo_fd, const char *name);
+int luo_session_finish(int session_fd);
+
+int create_and_preserve_memfd(int session_fd, int token, const char *data);
+int restore_and_verify_memfd(int session_fd, int token, const char *expected_data);
+
+void create_state_file(int luo_fd, const char *session_name, int token,
+		       int next_stage);
+void restore_and_read_stage(int state_session_fd, int token, int *stage);
+
+void daemonize_and_wait(void);
+
+typedef void (*luo_test_stage1_fn)(int luo_fd);
+typedef void (*luo_test_stage2_fn)(int luo_fd, int state_session_fd);
+
+int luo_test(int argc, char *argv[], const char *state_session_name,
+	     luo_test_stage1_fn stage1, luo_test_stage2_fn stage2);
+
+#endif /* LUO_TEST_UTILS_H */
diff --git a/tools/testing/selftests/lkdtm/.gitignore b/tools/testing/selftests/lkdtm/.gitignore
new file mode 100644
index 000000000000..d4b0be857deb
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/.gitignore
@@ -0,0 +1,3 @@
+*.sh
+!run.sh
+!stack-entropy.sh
diff --git a/tools/testing/selftests/lkdtm/Makefile b/tools/testing/selftests/lkdtm/Makefile
new file mode 100644
index 000000000000..c71109ceeb2d
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for LKDTM regression tests
+
+include ../lib.mk
+
+# NOTE: $(OUTPUT) won't get default value if used before lib.mk
+TEST_FILES := tests.txt
+TEST_PROGS := stack-entropy.sh
+TEST_GEN_PROGS = $(patsubst %,$(OUTPUT)/%.sh,$(shell awk '{print $$1}' tests.txt | sed -e 's/\#//'))
+all: $(TEST_GEN_PROGS)
+
+$(OUTPUT)/%: run.sh tests.txt
+	install -m 0744 run.sh $@
diff --git a/tools/testing/selftests/lkdtm/config b/tools/testing/selftests/lkdtm/config
new file mode 100644
index 000000000000..bd09fdaf53e0
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/config
@@ -0,0 +1,14 @@
+CONFIG_LKDTM=y
+CONFIG_DEBUG_LIST=y
+CONFIG_SLAB_FREELIST_HARDENED=y
+CONFIG_FORTIFY_SOURCE=y
+CONFIG_KSTACK_ERASE=y
+CONFIG_HARDENED_USERCOPY=y
+CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT=y
+CONFIG_INIT_ON_FREE_DEFAULT_ON=y
+CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y
+CONFIG_UBSAN=y
+CONFIG_UBSAN_BOUNDS=y
+CONFIG_STACKPROTECTOR_STRONG=y
+CONFIG_SLUB_DEBUG=y
+CONFIG_SLUB_DEBUG_ON=y
diff --git a/tools/testing/selftests/lkdtm/run.sh b/tools/testing/selftests/lkdtm/run.sh
new file mode 100755
index 000000000000..95e904959207
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/run.sh
@@ -0,0 +1,112 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# This reads tests.txt for the list of LKDTM tests to invoke. Any marked
+# with a leading "#" are skipped. The rest of the line after the
+# test name is either the text to look for in dmesg for a "success",
+# or the rationale for why a test is marked to be skipped.
+#
+set -e
+TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT
+CLEAR_ONCE=/sys/kernel/debug/clear_warn_once
+KSELFTEST_SKIP_TEST=4
+
+# Verify we have LKDTM available in the kernel.
+if [ ! -r $TRIGGER ] ; then
+	/sbin/modprobe -q lkdtm || true
+	if [ ! -r $TRIGGER ] ; then
+		echo "Cannot find $TRIGGER (missing CONFIG_LKDTM?)"
+	else
+		echo "Cannot write $TRIGGER (need to run as root?)"
+	fi
+	# Skip this test
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+# Figure out which test to run from our script name.
+test=$(basename $0 .sh)
+# Look up details about the test from master list of LKDTM tests.
+line=$(grep -E '^#?'"$test"'\b' tests.txt)
+if [ -z "$line" ]; then
+	echo "Skipped: missing test '$test' in tests.txt"
+	exit $KSELFTEST_SKIP_TEST
+fi
+# Check that the test is known to LKDTM.
+if ! grep -E -q '^'"$test"'$' "$TRIGGER" ; then
+	echo "Skipped: test '$test' missing in $TRIGGER!"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+# Extract notes/expected output from test list.
+test=$(echo "$line" | cut -d" " -f1)
+if echo "$line" | grep -q ' ' ; then
+	expect=$(echo "$line" | cut -d" " -f2-)
+else
+	expect=""
+fi
+
+# If the test is commented out, report a skip
+if echo "$test" | grep -q '^#' ; then
+	test=$(echo "$test" | cut -c2-)
+	if [ -z "$expect" ]; then
+		expect="crashes entire system"
+	fi
+	echo "Skipping $test: $expect"
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+# If no expected output given, assume an Oops with back trace is success.
+repeat=1
+if [ -z "$expect" ]; then
+	expect="call trace:"
+else
+	if echo "$expect" | grep -q '^repeat:' ; then
+		repeat=$(echo "$expect" | cut -d' ' -f1 | cut -d: -f2)
+		expect=$(echo "$expect" | cut -d' ' -f2-)
+	fi
+fi
+
+# Prepare log for report checking
+LOG=$(mktemp --tmpdir -t lkdtm-log-XXXXXX)
+DMESG=$(mktemp --tmpdir -t lkdtm-dmesg-XXXXXX)
+cleanup() {
+	rm -f "$LOG" "$DMESG"
+}
+trap cleanup EXIT
+
+# Reset WARN_ONCE counters so we trip it each time this runs.
+if [ -w $CLEAR_ONCE ] ; then
+	echo 1 > $CLEAR_ONCE
+fi
+
+# Save existing dmesg so we can detect new content below
+dmesg > "$DMESG"
+
+# Since the kernel is likely killing the process writing to the trigger
+# file, it must not be the script's shell itself. i.e. we cannot do:
+#     echo "$test" >"$TRIGGER"
+# Instead, use "cat" to take the signal. Since the shell will yell about
+# the signal that killed the subprocess, we must ignore the failure and
+# continue. However we don't silence stderr since there might be other
+# useful details reported there in the case of other unexpected conditions.
+for i in $(seq 1 $repeat); do
+	echo "$test" | cat >"$TRIGGER" || true
+done
+
+# Record and dump the results
+dmesg | comm --nocheck-order -13 "$DMESG" - > "$LOG" || true
+
+cat "$LOG"
+# Check for expected output
+if grep -E -qi "$expect" "$LOG" ; then
+	echo "$test: saw '$expect': ok"
+	exit 0
+else
+	if grep -E -qi XFAIL: "$LOG" ; then
+		echo "$test: saw 'XFAIL': [SKIP]"
+		exit $KSELFTEST_SKIP_TEST
+	else
+		echo "$test: missing '$expect': [FAIL]"
+		exit 1
+	fi
+fi
diff --git a/tools/testing/selftests/lkdtm/stack-entropy.sh b/tools/testing/selftests/lkdtm/stack-entropy.sh
new file mode 100755
index 000000000000..14fedeef762e
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/stack-entropy.sh
@@ -0,0 +1,51 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Measure kernel stack entropy by sampling via LKDTM's REPORT_STACK test.
+set -e
+samples="${1:-1000}"
+TRIGGER=/sys/kernel/debug/provoke-crash/DIRECT
+KSELFTEST_SKIP_TEST=4
+
+# Verify we have LKDTM available in the kernel.
+if [ ! -r $TRIGGER ] ; then
+	/sbin/modprobe -q lkdtm || true
+	if [ ! -r $TRIGGER ] ; then
+		echo "Cannot find $TRIGGER (missing CONFIG_LKDTM?)"
+	else
+		echo "Cannot write $TRIGGER (need to run as root?)"
+	fi
+	# Skip this test
+	exit $KSELFTEST_SKIP_TEST
+fi
+
+# Capture dmesg continuously since it may fill up depending on sample size.
+log=$(mktemp -t stack-entropy-XXXXXX)
+dmesg --follow >"$log" & pid=$!
+report=-1
+for i in $(seq 1 $samples); do
+        echo "REPORT_STACK" > $TRIGGER
+	if [ -t 1 ]; then
+		percent=$(( 100 * $i / $samples ))
+		if [ "$percent" -ne "$report" ]; then
+			/bin/echo -en "$percent%\r"
+			report="$percent"
+		fi
+	fi
+done
+kill "$pid"
+
+# Count unique offsets since last run.
+seen=$(tac "$log" | grep -m1 -B"$samples"0 'Starting stack offset' | \
+	grep 'Stack offset' | awk '{print $NF}' | sort | uniq -c | wc -l)
+bits=$(echo "obase=2; $seen" | bc | wc -L)
+echo "Bits of stack entropy: $bits"
+rm -f "$log"
+
+# We would expect any functional stack randomization to be at least 5 bits.
+if [ "$bits" -lt 5 ]; then
+	echo "Stack entropy is low! Booted without 'randomize_kstack_offset=y'?"
+	exit 1
+else
+	exit 0
+fi
diff --git a/tools/testing/selftests/lkdtm/tests.txt b/tools/testing/selftests/lkdtm/tests.txt
new file mode 100644
index 000000000000..cff124c1eddd
--- /dev/null
+++ b/tools/testing/selftests/lkdtm/tests.txt
@@ -0,0 +1,85 @@
+#PANIC
+#PANIC_STOP_IRQOFF Crashes entire system
+BUG kernel BUG at
+WARNING WARNING:
+WARNING_MESSAGE message trigger
+EXCEPTION
+#LOOP Hangs the system
+#EXHAUST_STACK Corrupts memory on failure
+#CORRUPT_STACK Crashes entire system on success
+#CORRUPT_STACK_STRONG Crashes entire system on success
+ARRAY_BOUNDS call trace:|UBSAN: array-index-out-of-bounds
+CORRUPT_LIST_ADD list_add corruption
+CORRUPT_LIST_DEL list_del corruption
+STACK_GUARD_PAGE_LEADING
+STACK_GUARD_PAGE_TRAILING
+REPORT_STACK_CANARY repeat:2 ok: stack canaries differ
+UNSET_SMEP pinned CR4 bits changed:
+DOUBLE_FAULT
+CORRUPT_PAC
+UNALIGNED_LOAD_STORE_WRITE
+SLAB_LINEAR_OVERFLOW
+VMALLOC_LINEAR_OVERFLOW
+#WRITE_AFTER_FREE Corrupts memory on failure
+READ_AFTER_FREE call trace:|Memory correctly poisoned
+#WRITE_BUDDY_AFTER_FREE Corrupts memory on failure
+READ_BUDDY_AFTER_FREE call trace:|Memory correctly poisoned
+SLAB_INIT_ON_ALLOC Memory appears initialized
+BUDDY_INIT_ON_ALLOC Memory appears initialized
+SLAB_FREE_DOUBLE
+SLAB_FREE_CROSS
+SLAB_FREE_PAGE
+#SOFTLOCKUP Hangs the system
+#HARDLOCKUP Hangs the system
+#SMP_CALL_LOCKUP Hangs the system
+#SPINLOCKUP Hangs the system
+#HUNG_TASK Hangs the system
+EXEC_DATA
+EXEC_STACK
+EXEC_KMALLOC
+EXEC_VMALLOC
+EXEC_RODATA
+EXEC_USERSPACE
+EXEC_NULL
+ACCESS_USERSPACE
+ACCESS_NULL
+WRITE_RO
+WRITE_RO_AFTER_INIT
+WRITE_KERN
+WRITE_OPD
+REFCOUNT_INC_OVERFLOW
+REFCOUNT_ADD_OVERFLOW
+REFCOUNT_INC_NOT_ZERO_OVERFLOW
+REFCOUNT_ADD_NOT_ZERO_OVERFLOW
+REFCOUNT_DEC_ZERO
+REFCOUNT_DEC_NEGATIVE Negative detected: saturated
+REFCOUNT_DEC_AND_TEST_NEGATIVE Negative detected: saturated
+REFCOUNT_SUB_AND_TEST_NEGATIVE Negative detected: saturated
+REFCOUNT_INC_ZERO
+REFCOUNT_ADD_ZERO
+REFCOUNT_INC_SATURATED Saturation detected: still saturated
+REFCOUNT_DEC_SATURATED Saturation detected: still saturated
+REFCOUNT_ADD_SATURATED Saturation detected: still saturated
+REFCOUNT_INC_NOT_ZERO_SATURATED
+REFCOUNT_ADD_NOT_ZERO_SATURATED
+REFCOUNT_DEC_AND_TEST_SATURATED Saturation detected: still saturated
+REFCOUNT_SUB_AND_TEST_SATURATED Saturation detected: still saturated
+#REFCOUNT_TIMING timing only
+#ATOMIC_TIMING timing only
+USERCOPY_SLAB_SIZE_TO
+USERCOPY_SLAB_SIZE_FROM
+USERCOPY_SLAB_WHITELIST_TO
+USERCOPY_SLAB_WHITELIST_FROM
+USERCOPY_STACK_FRAME_TO
+USERCOPY_STACK_FRAME_FROM
+USERCOPY_STACK_BEYOND
+USERCOPY_KERNEL
+STACKLEAK_ERASING OK: the rest of the thread stack is properly erased
+CFI_FORWARD_PROTO
+CFI_BACKWARD call trace:|ok: control flow unchanged
+FORTIFY_STRSCPY detected buffer overflow
+FORTIFY_STR_OBJECT detected buffer overflow
+FORTIFY_STR_MEMBER detected buffer overflow
+FORTIFY_MEM_OBJECT detected buffer overflow
+FORTIFY_MEM_MEMBER detected field-spanning write
+PPC_SLB_MULTIHIT Recovered
diff --git a/tools/testing/selftests/locking/Makefile b/tools/testing/selftests/locking/Makefile
new file mode 100644
index 000000000000..6e7761ab3536
--- /dev/null
+++ b/tools/testing/selftests/locking/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for locking/ww_mutx selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+TEST_PROGS := ww_mutex.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/locking/ww_mutex.sh b/tools/testing/selftests/locking/ww_mutex.sh
new file mode 100755
index 000000000000..91e4ac7566af
--- /dev/null
+++ b/tools/testing/selftests/locking/ww_mutex.sh
@@ -0,0 +1,19 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# Runs API tests for struct ww_mutex (Wait/Wound mutexes)
+if ! /sbin/modprobe -q -n test-ww_mutex; then
+	echo "ww_mutex: module test-ww_mutex is not found [SKIP]"
+	exit $ksft_skip
+fi
+
+if /sbin/modprobe -q test-ww_mutex; then
+       /sbin/modprobe -q -r test-ww_mutex
+       echo "locking/ww_mutex: ok"
+else
+       echo "locking/ww_mutex: [FAIL]"
+       exit 1
+fi
diff --git a/tools/testing/selftests/lsm/.gitignore b/tools/testing/selftests/lsm/.gitignore
new file mode 100644
index 000000000000..bd68f6c3fd07
--- /dev/null
+++ b/tools/testing/selftests/lsm/.gitignore
@@ -0,0 +1 @@
+/*_test
diff --git a/tools/testing/selftests/lsm/Makefile b/tools/testing/selftests/lsm/Makefile
new file mode 100644
index 000000000000..3f80c0bc093d
--- /dev/null
+++ b/tools/testing/selftests/lsm/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# First run: make -C ../../../.. headers_install
+
+CFLAGS += -Wall -O2 $(KHDR_INCLUDES)
+LOCAL_HDRS += common.h
+
+TEST_GEN_PROGS := lsm_get_self_attr_test lsm_list_modules_test \
+		  lsm_set_self_attr_test
+
+include ../lib.mk
+
+$(OUTPUT)/lsm_get_self_attr_test: lsm_get_self_attr_test.c common.c
+$(OUTPUT)/lsm_set_self_attr_test: lsm_set_self_attr_test.c common.c
+$(OUTPUT)/lsm_list_modules_test: lsm_list_modules_test.c common.c
+
+EXTRA_CLEAN = $(OUTPUT)/common.o
diff --git a/tools/testing/selftests/lsm/common.c b/tools/testing/selftests/lsm/common.c
new file mode 100644
index 000000000000..9ad258912646
--- /dev/null
+++ b/tools/testing/selftests/lsm/common.c
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Linux Security Module infrastructure tests
+ *
+ * Copyright © 2023 Casey Schaufler <casey@schaufler-ca.com>
+ */
+
+#define _GNU_SOURCE
+#include <linux/lsm.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "common.h"
+
+#define PROCATTR "/proc/self/attr/"
+
+int read_proc_attr(const char *attr, char *value, size_t size)
+{
+	int fd;
+	int len;
+	char *path;
+
+	len = strlen(PROCATTR) + strlen(attr) + 1;
+	path = calloc(len, 1);
+	if (path == NULL)
+		return -1;
+	sprintf(path, "%s%s", PROCATTR, attr);
+
+	fd = open(path, O_RDONLY);
+	free(path);
+
+	if (fd < 0)
+		return -1;
+	len = read(fd, value, size);
+
+	close(fd);
+
+	/* Ensure value is terminated */
+	if (len <= 0 || len == size)
+		return -1;
+	value[len] = '\0';
+
+	path = strchr(value, '\n');
+	if (path)
+		*path = '\0';
+
+	return 0;
+}
+
+int read_sysfs_lsms(char *lsms, size_t size)
+{
+	FILE *fp;
+	size_t red;
+
+	fp = fopen("/sys/kernel/security/lsm", "r");
+	if (fp == NULL)
+		return -1;
+	red = fread(lsms, 1, size, fp);
+	fclose(fp);
+
+	if (red <= 0 || red == size)
+		return -1;
+	lsms[red] = '\0';
+	return 0;
+}
+
+int attr_lsm_count(void)
+{
+	char *names = calloc(sysconf(_SC_PAGESIZE), 1);
+	int count = 0;
+
+	if (!names)
+		return 0;
+
+	if (read_sysfs_lsms(names, sysconf(_SC_PAGESIZE)))
+		return 0;
+
+	if (strstr(names, "selinux"))
+		count++;
+	if (strstr(names, "smack"))
+		count++;
+	if (strstr(names, "apparmor"))
+		count++;
+
+	return count;
+}
diff --git a/tools/testing/selftests/lsm/common.h b/tools/testing/selftests/lsm/common.h
new file mode 100644
index 000000000000..06d12110d241
--- /dev/null
+++ b/tools/testing/selftests/lsm/common.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Linux Security Module infrastructure tests
+ *
+ * Copyright © 2023 Casey Schaufler <casey@schaufler-ca.com>
+ */
+
+#ifndef lsm_get_self_attr
+static inline int lsm_get_self_attr(unsigned int attr, struct lsm_ctx *ctx,
+				    __u32 *size, __u32 flags)
+{
+	return syscall(__NR_lsm_get_self_attr, attr, ctx, size, flags);
+}
+#endif
+
+#ifndef lsm_set_self_attr
+static inline int lsm_set_self_attr(unsigned int attr, struct lsm_ctx *ctx,
+				    __u32 size, __u32 flags)
+{
+	return syscall(__NR_lsm_set_self_attr, attr, ctx, size, flags);
+}
+#endif
+
+#ifndef lsm_list_modules
+static inline int lsm_list_modules(__u64 *ids, __u32 *size, __u32 flags)
+{
+	return syscall(__NR_lsm_list_modules, ids, size, flags);
+}
+#endif
+
+extern int read_proc_attr(const char *attr, char *value, size_t size);
+extern int read_sysfs_lsms(char *lsms, size_t size);
+int attr_lsm_count(void);
diff --git a/tools/testing/selftests/lsm/config b/tools/testing/selftests/lsm/config
new file mode 100644
index 000000000000..1c0c4c020f9c
--- /dev/null
+++ b/tools/testing/selftests/lsm/config
@@ -0,0 +1,3 @@
+CONFIG_SYSFS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
diff --git a/tools/testing/selftests/lsm/lsm_get_self_attr_test.c b/tools/testing/selftests/lsm/lsm_get_self_attr_test.c
new file mode 100644
index 000000000000..60caf8528f81
--- /dev/null
+++ b/tools/testing/selftests/lsm/lsm_get_self_attr_test.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Linux Security Module infrastructure tests
+ * Tests for the lsm_get_self_attr system call
+ *
+ * Copyright © 2022 Casey Schaufler <casey@schaufler-ca.com>
+ */
+
+#define _GNU_SOURCE
+#include <linux/lsm.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "kselftest_harness.h"
+#include "common.h"
+
+static struct lsm_ctx *next_ctx(struct lsm_ctx *ctxp)
+{
+	void *vp;
+
+	vp = (void *)ctxp + sizeof(*ctxp) + ctxp->ctx_len;
+	return (struct lsm_ctx *)vp;
+}
+
+TEST(size_null_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+
+	ASSERT_NE(NULL, ctx);
+	errno = 0;
+	ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, NULL, 0));
+	ASSERT_EQ(EINVAL, errno);
+
+	free(ctx);
+}
+
+TEST(ctx_null_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u32 size = page_size;
+	int rc;
+
+	rc = lsm_get_self_attr(LSM_ATTR_CURRENT, NULL, &size, 0);
+
+	if (attr_lsm_count()) {
+		ASSERT_NE(-1, rc);
+		ASSERT_NE(1, size);
+	} else {
+		ASSERT_EQ(-1, rc);
+	}
+}
+
+TEST(size_too_small_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u32 size = 1;
+
+	ASSERT_NE(NULL, ctx);
+	errno = 0;
+	ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size, 0));
+	if (attr_lsm_count()) {
+		ASSERT_EQ(E2BIG, errno);
+	} else {
+		ASSERT_EQ(EOPNOTSUPP, errno);
+	}
+	ASSERT_NE(1, size);
+
+	free(ctx);
+}
+
+TEST(flags_zero_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u64 *syscall_lsms = calloc(page_size, 1);
+	__u32 size;
+	int lsmcount;
+	int i;
+
+	ASSERT_NE(NULL, ctx);
+	errno = 0;
+	size = page_size;
+	ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
+					LSM_FLAG_SINGLE));
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(page_size, size);
+
+	lsmcount = syscall(__NR_lsm_list_modules, syscall_lsms, &size, 0);
+	ASSERT_LE(1, lsmcount);
+	ASSERT_NE(NULL, syscall_lsms);
+
+	for (i = 0; i < lsmcount; i++) {
+		errno = 0;
+		size = page_size;
+		ctx->id = syscall_lsms[i];
+
+		if (syscall_lsms[i] == LSM_ID_SELINUX ||
+		    syscall_lsms[i] == LSM_ID_SMACK ||
+		    syscall_lsms[i] == LSM_ID_APPARMOR) {
+			ASSERT_EQ(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx,
+						       &size, LSM_FLAG_SINGLE));
+		} else {
+			ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx,
+							&size,
+							LSM_FLAG_SINGLE));
+		}
+	}
+
+	free(ctx);
+}
+
+TEST(flags_overset_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u32 size;
+
+	ASSERT_NE(NULL, ctx);
+
+	errno = 0;
+	size = page_size;
+	ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT | LSM_ATTR_PREV, ctx,
+					&size, 0));
+	ASSERT_EQ(EOPNOTSUPP, errno);
+
+	errno = 0;
+	size = page_size;
+	ASSERT_EQ(-1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
+					LSM_FLAG_SINGLE |
+					(LSM_FLAG_SINGLE << 1)));
+	ASSERT_EQ(EINVAL, errno);
+
+	free(ctx);
+}
+
+TEST(basic_lsm_get_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u32 size = page_size;
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	struct lsm_ctx *tctx = NULL;
+	__u64 *syscall_lsms = calloc(page_size, 1);
+	char *attr = calloc(page_size, 1);
+	int cnt_current = 0;
+	int cnt_exec = 0;
+	int cnt_fscreate = 0;
+	int cnt_keycreate = 0;
+	int cnt_prev = 0;
+	int cnt_sockcreate = 0;
+	int lsmcount;
+	int count;
+	int i;
+
+	ASSERT_NE(NULL, ctx);
+	ASSERT_NE(NULL, syscall_lsms);
+
+	lsmcount = syscall(__NR_lsm_list_modules, syscall_lsms, &size, 0);
+	ASSERT_LE(1, lsmcount);
+
+	for (i = 0; i < lsmcount; i++) {
+		switch (syscall_lsms[i]) {
+		case LSM_ID_SELINUX:
+			cnt_current++;
+			cnt_exec++;
+			cnt_fscreate++;
+			cnt_keycreate++;
+			cnt_prev++;
+			cnt_sockcreate++;
+			break;
+		case LSM_ID_SMACK:
+			cnt_current++;
+			break;
+		case LSM_ID_APPARMOR:
+			cnt_current++;
+			cnt_exec++;
+			cnt_prev++;
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (cnt_current) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size, 0);
+		ASSERT_EQ(cnt_current, count);
+		tctx = ctx;
+		ASSERT_EQ(0, read_proc_attr("current", attr, page_size));
+		ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+		for (i = 1; i < count; i++) {
+			tctx = next_ctx(tctx);
+			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+		}
+	}
+	if (cnt_exec) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_EXEC, ctx, &size, 0);
+		ASSERT_GE(cnt_exec, count);
+		if (count > 0) {
+			tctx = ctx;
+			if (read_proc_attr("exec", attr, page_size) == 0)
+				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+		}
+		for (i = 1; i < count; i++) {
+			tctx = next_ctx(tctx);
+			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+		}
+	}
+	if (cnt_fscreate) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_FSCREATE, ctx, &size, 0);
+		ASSERT_GE(cnt_fscreate, count);
+		if (count > 0) {
+			tctx = ctx;
+			if (read_proc_attr("fscreate", attr, page_size) == 0)
+				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+		}
+		for (i = 1; i < count; i++) {
+			tctx = next_ctx(tctx);
+			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+		}
+	}
+	if (cnt_keycreate) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_KEYCREATE, ctx, &size, 0);
+		ASSERT_GE(cnt_keycreate, count);
+		if (count > 0) {
+			tctx = ctx;
+			if (read_proc_attr("keycreate", attr, page_size) == 0)
+				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+		}
+		for (i = 1; i < count; i++) {
+			tctx = next_ctx(tctx);
+			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+		}
+	}
+	if (cnt_prev) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_PREV, ctx, &size, 0);
+		ASSERT_GE(cnt_prev, count);
+		if (count > 0) {
+			tctx = ctx;
+			ASSERT_EQ(0, read_proc_attr("prev", attr, page_size));
+			ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+			for (i = 1; i < count; i++) {
+				tctx = next_ctx(tctx);
+				ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+			}
+		}
+	}
+	if (cnt_sockcreate) {
+		size = page_size;
+		count = lsm_get_self_attr(LSM_ATTR_SOCKCREATE, ctx, &size, 0);
+		ASSERT_GE(cnt_sockcreate, count);
+		if (count > 0) {
+			tctx = ctx;
+			if (read_proc_attr("sockcreate", attr, page_size) == 0)
+				ASSERT_EQ(0, strcmp((char *)tctx->ctx, attr));
+		}
+		for (i = 1; i < count; i++) {
+			tctx = next_ctx(tctx);
+			ASSERT_NE(0, strcmp((char *)tctx->ctx, attr));
+		}
+	}
+
+	free(ctx);
+	free(attr);
+	free(syscall_lsms);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/lsm/lsm_list_modules_test.c b/tools/testing/selftests/lsm/lsm_list_modules_test.c
new file mode 100644
index 000000000000..54d59044ace1
--- /dev/null
+++ b/tools/testing/selftests/lsm/lsm_list_modules_test.c
@@ -0,0 +1,146 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Linux Security Module infrastructure tests
+ * Tests for the lsm_list_modules system call
+ *
+ * Copyright © 2022 Casey Schaufler <casey@schaufler-ca.com>
+ */
+
+#define _GNU_SOURCE
+#include <linux/lsm.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "kselftest_harness.h"
+#include "common.h"
+
+TEST(size_null_lsm_list_modules)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u64 *syscall_lsms = calloc(page_size, 1);
+
+	ASSERT_NE(NULL, syscall_lsms);
+	errno = 0;
+	ASSERT_EQ(-1, lsm_list_modules(syscall_lsms, NULL, 0));
+	ASSERT_EQ(EFAULT, errno);
+
+	free(syscall_lsms);
+}
+
+TEST(ids_null_lsm_list_modules)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u32 size = page_size;
+
+	errno = 0;
+	ASSERT_EQ(-1, lsm_list_modules(NULL, &size, 0));
+	ASSERT_EQ(EFAULT, errno);
+	ASSERT_NE(1, size);
+}
+
+TEST(size_too_small_lsm_list_modules)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u64 *syscall_lsms = calloc(page_size, 1);
+	__u32 size = 1;
+
+	ASSERT_NE(NULL, syscall_lsms);
+	errno = 0;
+	ASSERT_EQ(-1, lsm_list_modules(syscall_lsms, &size, 0));
+	ASSERT_EQ(E2BIG, errno);
+	ASSERT_NE(1, size);
+
+	free(syscall_lsms);
+}
+
+TEST(flags_set_lsm_list_modules)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u64 *syscall_lsms = calloc(page_size, 1);
+	__u32 size = page_size;
+
+	ASSERT_NE(NULL, syscall_lsms);
+	errno = 0;
+	ASSERT_EQ(-1, lsm_list_modules(syscall_lsms, &size, 7));
+	ASSERT_EQ(EINVAL, errno);
+	ASSERT_EQ(page_size, size);
+
+	free(syscall_lsms);
+}
+
+TEST(correct_lsm_list_modules)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	__u32 size = page_size;
+	__u64 *syscall_lsms = calloc(page_size, 1);
+	char *sysfs_lsms = calloc(page_size, 1);
+	char *name;
+	char *cp;
+	int count;
+	int i;
+
+	ASSERT_NE(NULL, sysfs_lsms);
+	ASSERT_NE(NULL, syscall_lsms);
+	ASSERT_EQ(0, read_sysfs_lsms(sysfs_lsms, page_size));
+
+	count = lsm_list_modules(syscall_lsms, &size, 0);
+	ASSERT_LE(1, count);
+	cp = sysfs_lsms;
+	for (i = 0; i < count; i++) {
+		switch (syscall_lsms[i]) {
+		case LSM_ID_CAPABILITY:
+			name = "capability";
+			break;
+		case LSM_ID_SELINUX:
+			name = "selinux";
+			break;
+		case LSM_ID_SMACK:
+			name = "smack";
+			break;
+		case LSM_ID_TOMOYO:
+			name = "tomoyo";
+			break;
+		case LSM_ID_APPARMOR:
+			name = "apparmor";
+			break;
+		case LSM_ID_YAMA:
+			name = "yama";
+			break;
+		case LSM_ID_LOADPIN:
+			name = "loadpin";
+			break;
+		case LSM_ID_SAFESETID:
+			name = "safesetid";
+			break;
+		case LSM_ID_LOCKDOWN:
+			name = "lockdown";
+			break;
+		case LSM_ID_BPF:
+			name = "bpf";
+			break;
+		case LSM_ID_LANDLOCK:
+			name = "landlock";
+			break;
+		case LSM_ID_IMA:
+			name = "ima";
+			break;
+		case LSM_ID_EVM:
+			name = "evm";
+			break;
+		case LSM_ID_IPE:
+			name = "ipe";
+			break;
+		default:
+			name = "INVALID";
+			break;
+		}
+		ASSERT_EQ(0, strncmp(cp, name, strlen(name)));
+		cp += strlen(name) + 1;
+	}
+
+	free(sysfs_lsms);
+	free(syscall_lsms);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/lsm/lsm_set_self_attr_test.c b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
new file mode 100644
index 000000000000..dcb6f8aa772e
--- /dev/null
+++ b/tools/testing/selftests/lsm/lsm_set_self_attr_test.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Linux Security Module infrastructure tests
+ * Tests for the lsm_set_self_attr system call
+ *
+ * Copyright © 2022 Casey Schaufler <casey@schaufler-ca.com>
+ */
+
+#define _GNU_SOURCE
+#include <linux/lsm.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include "kselftest_harness.h"
+#include "common.h"
+
+TEST(ctx_null_lsm_set_self_attr)
+{
+	ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, NULL,
+					sizeof(struct lsm_ctx), 0));
+}
+
+TEST(size_too_small_lsm_set_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u32 size = page_size;
+
+	ASSERT_NE(NULL, ctx);
+	if (attr_lsm_count()) {
+		ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
+					       0));
+	}
+	ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, ctx, 1, 0));
+
+	free(ctx);
+}
+
+TEST(flags_zero_lsm_set_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u32 size = page_size;
+
+	ASSERT_NE(NULL, ctx);
+	if (attr_lsm_count()) {
+		ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
+					       0));
+	}
+	ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT, ctx, size, 1));
+
+	free(ctx);
+}
+
+TEST(flags_overset_lsm_set_self_attr)
+{
+	const long page_size = sysconf(_SC_PAGESIZE);
+	struct lsm_ctx *ctx = calloc(page_size, 1);
+	__u32 size = page_size;
+
+	ASSERT_NE(NULL, ctx);
+	if (attr_lsm_count()) {
+		ASSERT_LE(1, lsm_get_self_attr(LSM_ATTR_CURRENT, ctx, &size,
+					       0));
+	}
+	ASSERT_EQ(-1, lsm_set_self_attr(LSM_ATTR_CURRENT | LSM_ATTR_PREV, ctx,
+					size, 0));
+
+	free(ctx);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/media_tests/.gitignore b/tools/testing/selftests/media_tests/.gitignore
new file mode 100644
index 000000000000..da438e780ffe
--- /dev/null
+++ b/tools/testing/selftests/media_tests/.gitignore
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
+media_device_test
+media_device_open
+video_device_test
diff --git a/tools/testing/selftests/media_tests/Makefile b/tools/testing/selftests/media_tests/Makefile
new file mode 100644
index 000000000000..471d83e61d95
--- /dev/null
+++ b/tools/testing/selftests/media_tests/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+CFLAGS += -I../ $(KHDR_INCLUDES)
+TEST_GEN_PROGS := media_device_test media_device_open video_device_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/media_tests/bind_unbind_sample.sh b/tools/testing/selftests/media_tests/bind_unbind_sample.sh
new file mode 100755
index 000000000000..0101c1ec4ff7
--- /dev/null
+++ b/tools/testing/selftests/media_tests/bind_unbind_sample.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Find device number in /sys/bus/usb/drivers/drivername
+# Edit this file to update the driver numer and name
+# Example test for uvcvideo driver
+#i=0
+# while :; do
+#  i=$((i+1))
+#  echo 1-5:1.0 > /sys/bus/usb/drivers/uvcvideo/unbind;
+#  echo 1-5:1.0 > /sys/bus/usb/drivers/uvcvideo/bind;
+#  clear
+#	echo $i
+#done
diff --git a/tools/testing/selftests/media_tests/media_dev_allocator.sh b/tools/testing/selftests/media_tests/media_dev_allocator.sh
new file mode 100755
index 000000000000..ffe00c59a483
--- /dev/null
+++ b/tools/testing/selftests/media_tests/media_dev_allocator.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Media Device Allocator API test script
+# Copyright (c) 2019 Shuah Khan <shuah@kernel.org>
+
+echo "Media Device Allocator testing: unbind and bind"
+echo "media driver $1 audio driver $2"
+
+MDRIVER=/sys/bus/usb/drivers/$1
+cd $MDRIVER
+MDEV=$(ls -d *\-*)
+
+ADRIVER=/sys/bus/usb/drivers/$2
+cd $ADRIVER
+ADEV=$(ls -d *\-*.1)
+
+echo "=================================="
+echo "Test unbind both devices - start"
+echo "Running unbind of $MDEV from $MDRIVER"
+echo $MDEV > $MDRIVER/unbind;
+
+echo "Media device should still be present!"
+ls -l /dev/media*
+
+echo "sound driver is at: $ADRIVER"
+echo "Device is: $ADEV"
+
+echo "Running unbind of $ADEV from $ADRIVER"
+echo $ADEV > $ADRIVER/unbind;
+
+echo "Media device should have been deleted!"
+ls -l /dev/media*
+echo "Test unbind both devices - end"
+
+echo "=================================="
+
+echo "Test bind both devices - start"
+echo "Running bind of $MDEV from $MDRIVER"
+echo $MDEV > $MDRIVER/bind;
+
+echo "Media device should be present!"
+ls -l /dev/media*
+
+echo "Running bind of $ADEV from $ADRIVER"
+echo $ADEV > $ADRIVER/bind;
+
+echo "Media device should be there!"
+ls -l /dev/media*
+
+echo "Test bind both devices - end"
+
+echo "=================================="
+
+echo "Test unbind $MDEV - bind $MDEV - unbind $ADEV - bind $ADEV start"
+
+echo "Running unbind of $MDEV from $MDRIVER"
+echo $MDEV > $MDRIVER/unbind;
+
+echo "Media device should be there!"
+ls -l /dev/media*
+
+sleep 1
+
+echo "Running bind of $MDEV from $MDRIVER"
+echo $MDEV > $MDRIVER/bind;
+
+echo "Media device should be there!"
+ls -l /dev/media*
+
+echo "Running unbind of $ADEV from $ADRIVER"
+echo $ADEV > $ADRIVER/unbind;
+
+echo "Media device should be there!"
+ls -l /dev/media*
+
+sleep 1
+
+echo "Running bind of $ADEV from $ADRIVER"
+echo $ADEV > $ADRIVER/bind;
+
+echo "Media device should be there!"
+ls -l /dev/media*
+
+echo "Test unbind $MDEV - bind $MDEV - unbind $ADEV - bind $ADEV end"
+echo "=================================="
diff --git a/tools/testing/selftests/media_tests/media_device_open.c b/tools/testing/selftests/media_tests/media_device_open.c
new file mode 100644
index 000000000000..4396bf2273a4
--- /dev/null
+++ b/tools/testing/selftests/media_tests/media_device_open.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * media_device_open.c - Media Controller Device Open Test
+ *
+ * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *
+ */
+
+/*
+ * This file adds a test for Media Controller API.
+ * This test should be run as root and should not be
+ * included in the Kselftest run. This test should be
+ * run when hardware and driver that makes use Media
+ * Controller API are present in the system.
+ *
+ * This test opens user specified Media Device and calls
+ * MEDIA_IOC_DEVICE_INFO ioctl, closes the file, and exits.
+ *
+ * Usage:
+ *	sudo ./media_device_open -d /dev/mediaX
+ *
+ *	Run this test is a loop and run bind/unbind on the driver.
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <linux/media.h>
+
+#include "kselftest.h"
+
+int main(int argc, char **argv)
+{
+	int opt;
+	char media_device[256];
+	int count = 0;
+	struct media_device_info mdi;
+	int ret;
+	int fd;
+
+	if (argc < 2) {
+		printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
+		exit(-1);
+	}
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "d:")) != -1) {
+		switch (opt) {
+		case 'd':
+			strncpy(media_device, optarg, sizeof(media_device) - 1);
+			media_device[sizeof(media_device)-1] = '\0';
+			break;
+		default:
+			printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
+			exit(-1);
+		}
+	}
+
+	if (getuid() != 0)
+		ksft_exit_skip("Please run the test as root - Exiting.\n");
+
+	/* Open Media device and keep it open */
+	fd = open(media_device, O_RDWR);
+	if (fd == -1) {
+		printf("Media Device open errno %s\n", strerror(errno));
+		exit(-1);
+	}
+
+	ret = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);
+	if (ret < 0)
+		printf("Media Device Info errno %s\n", strerror(errno));
+	else
+		printf("Media device model %s driver %s\n",
+			mdi.model, mdi.driver);
+}
diff --git a/tools/testing/selftests/media_tests/media_device_test.c b/tools/testing/selftests/media_tests/media_device_test.c
new file mode 100644
index 000000000000..6e4a8090a0eb
--- /dev/null
+++ b/tools/testing/selftests/media_tests/media_device_test.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * media_device_test.c - Media Controller Device ioctl loop Test
+ *
+ * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *
+ */
+
+/*
+ * This file adds a test for Media Controller API.
+ * This test should be run as root and should not be
+ * included in the Kselftest run. This test should be
+ * run when hardware and driver that makes use Media
+ * Controller API are present in the system.
+ *
+ * This test opens user specified Media Device and calls
+ * MEDIA_IOC_DEVICE_INFO ioctl in a loop once every 10
+ * seconds.
+ *
+ * Usage:
+ *	sudo ./media_device_test -d /dev/mediaX
+ *
+ *	While test is running, remove the device and
+ *	ensure there are no use after free errors and
+ *	other Oops in the dmesg. Enable KaSan kernel
+ *	config option for use-after-free error detection.
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <linux/media.h>
+
+#include "kselftest.h"
+
+int main(int argc, char **argv)
+{
+	int opt;
+	char media_device[256];
+	int count;
+	struct media_device_info mdi;
+	int ret;
+	int fd;
+
+	if (argc < 2) {
+		printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
+		exit(-1);
+	}
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "d:")) != -1) {
+		switch (opt) {
+		case 'd':
+			strncpy(media_device, optarg, sizeof(media_device) - 1);
+			media_device[sizeof(media_device)-1] = '\0';
+			break;
+		default:
+			printf("Usage: %s [-d </dev/mediaX>]\n", argv[0]);
+			exit(-1);
+		}
+	}
+
+	if (getuid() != 0)
+		ksft_exit_skip("Please run the test as root - Exiting.\n");
+
+	/* Generate random number of interations */
+	srand((unsigned int) time(NULL));
+	count = rand();
+
+	/* Open Media device and keep it open */
+	fd = open(media_device, O_RDWR);
+	if (fd == -1) {
+		printf("Media Device open errno %s\n", strerror(errno));
+		exit(-1);
+	}
+
+	printf("\nNote:\n"
+	       "While test is running, remove the device and\n"
+	       "ensure there are no use after free errors and\n"
+	       "other Oops in the dmesg. Enable KaSan kernel\n"
+	       "config option for use-after-free error detection.\n\n");
+
+	printf("Running test for %d iterations\n", count);
+
+	while (count > 0) {
+		ret = ioctl(fd, MEDIA_IOC_DEVICE_INFO, &mdi);
+		if (ret < 0)
+			printf("Media Device Info errno %s\n", strerror(errno));
+		else
+			printf("Media device model %s driver %s - count %d\n",
+				mdi.model, mdi.driver, count);
+		sleep(10);
+		count--;
+	}
+}
diff --git a/tools/testing/selftests/media_tests/open_loop_test.sh b/tools/testing/selftests/media_tests/open_loop_test.sh
new file mode 100755
index 000000000000..d4c0179bbe2c
--- /dev/null
+++ b/tools/testing/selftests/media_tests/open_loop_test.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+ i=0
+file=/dev/media$1
+ while :; do
+  echo $file
+  i=$((i+1))
+  R=$(./media_device_open -d $file);
+ # clear
+  echo -e "Loop $i\n$R"
+ done
diff --git a/tools/testing/selftests/media_tests/regression_test.txt b/tools/testing/selftests/media_tests/regression_test.txt
new file mode 100644
index 000000000000..9d0fcd98c085
--- /dev/null
+++ b/tools/testing/selftests/media_tests/regression_test.txt
@@ -0,0 +1,43 @@
+Testing for regressions in Media Controller API register, ioctl, syscall,
+and unregister paths. There have a few problems that result in use-after
+free on media_device, media_devnode, and cdev pointers when the driver is
+unbound while ioctl is in progress.
+
+Test Procedure:
+
+Run bin/unbind loop while ioctls are in progress.
+Run rmmod and modprobe.
+Disconnect the device.
+
+Setup:
+
+Build media_device_test
+cd tools/testing/selftests/media_tests
+make
+
+Regressions test for cdev use-after-free error on /dev/mediaX when driver
+is unbound:
+
+Start media_device_test to regression test media devnode dynamic alloc
+and cdev use-after-free fixes. This opens media dev files and sits in
+a loop running media ioctl MEDIA_IOC_DEVICE_INFO command once every 10
+seconds. The idea is when device file goes away, media devnode and cdev
+should stick around until this test exits.
+
+The test for a random number of iterations or until user kills it with a
+sleep 10 in between the ioctl calls.
+
+sudo ./media_device_test -d /dev/mediaX
+
+Regression test for media_devnode unregister race with ioctl_syscall:
+
+Start 6 open_loop_test.sh tests with different /dev/mediaX files. When
+device file goes away after unbind, device file name changes. Start the
+test with possible device names. If we start with /dev/media0 for example,
+after unbind, /dev/media1 or /dev/media2 could get created. The idea is
+keep ioctls going while bind/unbind runs.
+
+Copy bind_unbind_sample.txt and make changes to specify the driver name
+and number to run bind and unbind. Start the bind_unbind.sh
+
+Run dmesg looking for any use-after-free errors or mutex lock errors.
diff --git a/tools/testing/selftests/media_tests/video_device_test.c b/tools/testing/selftests/media_tests/video_device_test.c
new file mode 100644
index 000000000000..2c44e115f2f0
--- /dev/null
+++ b/tools/testing/selftests/media_tests/video_device_test.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * video_device_test - Video Device Test
+ *
+ * Copyright (c) 2016 Shuah Khan <shuahkh@osg.samsung.com>
+ * Copyright (c) 2016 Samsung Electronics Co., Ltd.
+ *
+ */
+
+/*
+ * This file adds a test for Video Device. This test should not be included
+ * in the Kselftest run. This test should be run when hardware and driver
+ * that makes use of V4L2 API is present.
+ *
+ * This test opens user specified Video Device and calls video ioctls in a
+ * loop once every 10 seconds.
+ *
+ * Usage:
+ *	sudo ./video_device_test -d /dev/videoX
+ *
+ *	While test is running, remove the device or unbind the driver and
+ *	ensure there are no use after free errors and other Oops in the
+ *	dmesg.
+ *	When possible, enable KaSan kernel config option for use-after-free
+ *	error detection.
+*/
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <linux/videodev2.h>
+
+#define PRIORITY_MAX 4
+
+int priority_test(int fd)
+{
+	/* This test will try to update the priority associated with a file descriptor */
+
+	enum v4l2_priority old_priority, new_priority, priority_to_compare;
+	int ret;
+	int result = 0;
+
+	ret = ioctl(fd, VIDIOC_G_PRIORITY, &old_priority);
+	if (ret < 0) {
+		printf("Failed to get priority: %s\n", strerror(errno));
+		return -1;
+	}
+	new_priority = (old_priority + 1) % PRIORITY_MAX;
+	ret = ioctl(fd, VIDIOC_S_PRIORITY, &new_priority);
+	if (ret < 0) {
+		printf("Failed to set priority: %s\n", strerror(errno));
+		return -1;
+	}
+	ret = ioctl(fd, VIDIOC_G_PRIORITY, &priority_to_compare);
+	if (ret < 0) {
+		printf("Failed to get new priority: %s\n", strerror(errno));
+		result = -1;
+		goto cleanup;
+	}
+	if (priority_to_compare != new_priority) {
+		printf("Priority wasn't set - test failed\n");
+		result = -1;
+	}
+
+cleanup:
+	ret = ioctl(fd, VIDIOC_S_PRIORITY, &old_priority);
+	if (ret < 0) {
+		printf("Failed to restore priority: %s\n", strerror(errno));
+		return -1;
+	}
+	return result;
+}
+
+int loop_test(int fd)
+{
+	int count;
+	struct v4l2_tuner vtuner;
+	struct v4l2_capability vcap;
+	int ret;
+
+	/* Generate random number of interations */
+	srand((unsigned int) time(NULL));
+	count = rand();
+
+	printf("\nNote:\n"
+	       "While test is running, remove the device or unbind\n"
+	       "driver and ensure there are no use after free errors\n"
+	       "and other Oops in the dmesg. When possible, enable KaSan\n"
+	       "kernel config option for use-after-free error detection.\n\n");
+
+	while (count > 0) {
+		ret = ioctl(fd, VIDIOC_QUERYCAP, &vcap);
+		if (ret < 0)
+			printf("VIDIOC_QUERYCAP errno %s\n", strerror(errno));
+		else
+			printf("Video device driver %s\n", vcap.driver);
+
+		ret = ioctl(fd, VIDIOC_G_TUNER, &vtuner);
+		if (ret < 0)
+			printf("VIDIOC_G_TUNER, errno %s\n", strerror(errno));
+		else
+			printf("type %d rangelow %d rangehigh %d\n",
+				vtuner.type, vtuner.rangelow, vtuner.rangehigh);
+		sleep(10);
+		count--;
+	}
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int opt;
+	char video_dev[256];
+	int fd;
+	int test_result;
+
+	if (argc < 2) {
+		printf("Usage: %s [-d </dev/videoX>]\n", argv[0]);
+		exit(-1);
+	}
+
+	/* Process arguments */
+	while ((opt = getopt(argc, argv, "d:")) != -1) {
+		switch (opt) {
+		case 'd':
+			strncpy(video_dev, optarg, sizeof(video_dev) - 1);
+			video_dev[sizeof(video_dev)-1] = '\0';
+			break;
+		default:
+			printf("Usage: %s [-d </dev/videoX>]\n", argv[0]);
+			exit(-1);
+		}
+	}
+
+	/* Open Video device and keep it open */
+	fd = open(video_dev, O_RDWR);
+	if (fd == -1) {
+		printf("Video Device open errno %s\n", strerror(errno));
+		exit(-1);
+	}
+
+	test_result = priority_test(fd);
+	if (!test_result)
+		printf("Priority test - PASSED\n");
+	else
+		printf("Priority test - FAILED\n");
+
+	loop_test(fd);
+}
diff --git a/tools/testing/selftests/membarrier/.gitignore b/tools/testing/selftests/membarrier/.gitignore
new file mode 100644
index 000000000000..f2fbba178601
--- /dev/null
+++ b/tools/testing/selftests/membarrier/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+membarrier_test_multi_thread
+membarrier_test_single_thread
diff --git a/tools/testing/selftests/membarrier/Makefile b/tools/testing/selftests/membarrier/Makefile
new file mode 100644
index 000000000000..fc840e06ff56
--- /dev/null
+++ b/tools/testing/selftests/membarrier/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -g $(KHDR_INCLUDES)
+LDLIBS += -lpthread
+
+TEST_GEN_PROGS := membarrier_test_single_thread \
+		membarrier_test_multi_thread
+
+include ../lib.mk
diff --git a/tools/testing/selftests/membarrier/membarrier_test_impl.h b/tools/testing/selftests/membarrier/membarrier_test_impl.h
new file mode 100644
index 000000000000..f6d7c44b2288
--- /dev/null
+++ b/tools/testing/selftests/membarrier/membarrier_test_impl.h
@@ -0,0 +1,350 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define _GNU_SOURCE
+#include <linux/membarrier.h>
+#include <syscall.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "kselftest.h"
+
+static int registrations;
+
+static int sys_membarrier(int cmd, int flags)
+{
+	return syscall(__NR_membarrier, cmd, flags);
+}
+
+static int test_membarrier_get_registrations(int cmd)
+{
+	int ret, flags = 0;
+	const char *test_name =
+		"sys membarrier MEMBARRIER_CMD_GET_REGISTRATIONS";
+
+	registrations |= cmd;
+
+	ret = sys_membarrier(MEMBARRIER_CMD_GET_REGISTRATIONS, 0);
+	if (ret < 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	} else if (ret != registrations) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, ret = %d, registrations = %d\n",
+			test_name, flags, ret, registrations);
+	}
+	ksft_test_result_pass(
+		"%s test: flags = %d, ret = %d, registrations = %d\n",
+		test_name, flags, ret, registrations);
+
+	return 0;
+}
+
+static int test_membarrier_cmd_fail(void)
+{
+	int cmd = -1, flags = 0;
+	const char *test_name = "sys membarrier invalid command";
+
+	if (sys_membarrier(cmd, flags) != -1) {
+		ksft_exit_fail_msg(
+			"%s test: command = %d, flags = %d. Should fail, but passed\n",
+			test_name, cmd, flags);
+	}
+	if (errno != EINVAL) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n",
+			test_name, flags, EINVAL, strerror(EINVAL),
+			errno, strerror(errno));
+	}
+
+	ksft_test_result_pass(
+		"%s test: command = %d, flags = %d, errno = %d. Failed as expected\n",
+		test_name, cmd, flags, errno);
+	return 0;
+}
+
+static int test_membarrier_flags_fail(void)
+{
+	int cmd = MEMBARRIER_CMD_QUERY, flags = 1;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_QUERY invalid flags";
+
+	if (sys_membarrier(cmd, flags) != -1) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should fail, but passed\n",
+			test_name, flags);
+	}
+	if (errno != EINVAL) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n",
+			test_name, flags, EINVAL, strerror(EINVAL),
+			errno, strerror(errno));
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d, errno = %d. Failed as expected\n",
+		test_name, flags, errno);
+	return 0;
+}
+
+static int test_membarrier_global_success(void)
+{
+	int cmd = MEMBARRIER_CMD_GLOBAL, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_GLOBAL";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n", test_name, flags);
+	return 0;
+}
+
+static int test_membarrier_private_expedited_fail(void)
+{
+	int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED not registered failure";
+
+	if (sys_membarrier(cmd, flags) != -1) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should fail, but passed\n",
+			test_name, flags);
+	}
+	if (errno != EPERM) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n",
+			test_name, flags, EPERM, strerror(EPERM),
+			errno, strerror(errno));
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d, errno = %d\n",
+		test_name, flags, errno);
+	return 0;
+}
+
+static int test_membarrier_register_private_expedited_success(void)
+{
+	int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+
+	test_membarrier_get_registrations(cmd);
+	return 0;
+}
+
+static int test_membarrier_private_expedited_success(void)
+{
+	int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+	return 0;
+}
+
+static int test_membarrier_private_expedited_sync_core_fail(void)
+{
+	int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE not registered failure";
+
+	if (sys_membarrier(cmd, flags) != -1) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should fail, but passed\n",
+			test_name, flags);
+	}
+	if (errno != EPERM) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d. Should return (%d: \"%s\"), but returned (%d: \"%s\").\n",
+			test_name, flags, EPERM, strerror(EPERM),
+			errno, strerror(errno));
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d, errno = %d\n",
+		test_name, flags, errno);
+	return 0;
+}
+
+static int test_membarrier_register_private_expedited_sync_core_success(void)
+{
+	int cmd = MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_SYNC_CORE";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+
+	test_membarrier_get_registrations(cmd);
+	return 0;
+}
+
+static int test_membarrier_private_expedited_sync_core_success(void)
+{
+	int cmd = MEMBARRIER_CMD_PRIVATE_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+	return 0;
+}
+
+static int test_membarrier_register_global_expedited_success(void)
+{
+	int cmd = MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_REGISTER_GLOBAL_EXPEDITED";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+
+	test_membarrier_get_registrations(cmd);
+	return 0;
+}
+
+static int test_membarrier_global_expedited_success(void)
+{
+	int cmd = MEMBARRIER_CMD_GLOBAL_EXPEDITED, flags = 0;
+	const char *test_name = "sys membarrier MEMBARRIER_CMD_GLOBAL_EXPEDITED";
+
+	if (sys_membarrier(cmd, flags) != 0) {
+		ksft_exit_fail_msg(
+			"%s test: flags = %d, errno = %d\n",
+			test_name, flags, errno);
+	}
+
+	ksft_test_result_pass(
+		"%s test: flags = %d\n",
+		test_name, flags);
+	return 0;
+}
+
+static int test_membarrier_fail(void)
+{
+	int status;
+
+	status = test_membarrier_cmd_fail();
+	if (status)
+		return status;
+	status = test_membarrier_flags_fail();
+	if (status)
+		return status;
+	status = test_membarrier_private_expedited_fail();
+	if (status)
+		return status;
+	status = sys_membarrier(MEMBARRIER_CMD_QUERY, 0);
+	if (status < 0) {
+		ksft_test_result_fail("sys_membarrier() failed\n");
+		return status;
+	}
+	if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) {
+		status = test_membarrier_private_expedited_sync_core_fail();
+		if (status)
+			return status;
+	}
+	return 0;
+}
+
+static int test_membarrier_success(void)
+{
+	int status;
+
+	status = test_membarrier_global_success();
+	if (status)
+		return status;
+	status = test_membarrier_register_private_expedited_success();
+	if (status)
+		return status;
+	status = test_membarrier_private_expedited_success();
+	if (status)
+		return status;
+	status = sys_membarrier(MEMBARRIER_CMD_QUERY, 0);
+	if (status < 0) {
+		ksft_test_result_fail("sys_membarrier() failed\n");
+		return status;
+	}
+	if (status & MEMBARRIER_CMD_PRIVATE_EXPEDITED_SYNC_CORE) {
+		status = test_membarrier_register_private_expedited_sync_core_success();
+		if (status)
+			return status;
+		status = test_membarrier_private_expedited_sync_core_success();
+		if (status)
+			return status;
+	}
+	/*
+	 * It is valid to send a global membarrier from a non-registered
+	 * process.
+	 */
+	status = test_membarrier_global_expedited_success();
+	if (status)
+		return status;
+	status = test_membarrier_register_global_expedited_success();
+	if (status)
+		return status;
+	status = test_membarrier_global_expedited_success();
+	if (status)
+		return status;
+	return 0;
+}
+
+static int test_membarrier_query(void)
+{
+	int flags = 0, ret;
+
+	ret = sys_membarrier(MEMBARRIER_CMD_QUERY, flags);
+	if (ret < 0) {
+		if (errno == ENOSYS) {
+			/*
+			 * It is valid to build a kernel with
+			 * CONFIG_MEMBARRIER=n. However, this skips the tests.
+			 */
+			ksft_exit_skip(
+				"sys membarrier (CONFIG_MEMBARRIER) is disabled.\n");
+		}
+		ksft_exit_fail_msg("sys_membarrier() failed\n");
+	}
+	if (!(ret & MEMBARRIER_CMD_GLOBAL))
+		ksft_exit_skip(
+			"sys_membarrier unsupported: CMD_GLOBAL not found.\n");
+
+	ksft_test_result_pass("sys_membarrier available\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c
new file mode 100644
index 000000000000..4e14dba81234
--- /dev/null
+++ b/tools/testing/selftests/membarrier/membarrier_test_multi_thread.c
@@ -0,0 +1,73 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <linux/membarrier.h>
+#include <syscall.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "membarrier_test_impl.h"
+
+static int thread_ready, thread_quit;
+static pthread_mutex_t test_membarrier_thread_mutex =
+	PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t test_membarrier_thread_cond =
+	PTHREAD_COND_INITIALIZER;
+
+void *test_membarrier_thread(void *arg)
+{
+	pthread_mutex_lock(&test_membarrier_thread_mutex);
+	thread_ready = 1;
+	pthread_cond_broadcast(&test_membarrier_thread_cond);
+	pthread_mutex_unlock(&test_membarrier_thread_mutex);
+
+	pthread_mutex_lock(&test_membarrier_thread_mutex);
+	while (!thread_quit)
+		pthread_cond_wait(&test_membarrier_thread_cond,
+				  &test_membarrier_thread_mutex);
+	pthread_mutex_unlock(&test_membarrier_thread_mutex);
+
+	return NULL;
+}
+
+static int test_mt_membarrier(void)
+{
+	int i;
+	pthread_t test_thread;
+
+	pthread_create(&test_thread, NULL,
+		       test_membarrier_thread, NULL);
+
+	pthread_mutex_lock(&test_membarrier_thread_mutex);
+	while (!thread_ready)
+		pthread_cond_wait(&test_membarrier_thread_cond,
+				  &test_membarrier_thread_mutex);
+	pthread_mutex_unlock(&test_membarrier_thread_mutex);
+
+	test_membarrier_fail();
+
+	test_membarrier_success();
+
+	pthread_mutex_lock(&test_membarrier_thread_mutex);
+	thread_quit = 1;
+	pthread_cond_broadcast(&test_membarrier_thread_cond);
+	pthread_mutex_unlock(&test_membarrier_thread_mutex);
+
+	pthread_join(test_thread, NULL);
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(16);
+
+	test_membarrier_query();
+
+	/* Multi-threaded */
+	test_mt_membarrier();
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/membarrier/membarrier_test_single_thread.c b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c
new file mode 100644
index 000000000000..fa3f1d6c37a0
--- /dev/null
+++ b/tools/testing/selftests/membarrier/membarrier_test_single_thread.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <linux/membarrier.h>
+#include <syscall.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <pthread.h>
+
+#include "membarrier_test_impl.h"
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(18);
+
+	test_membarrier_get_registrations(/*cmd=*/0);
+
+	test_membarrier_query();
+
+	test_membarrier_fail();
+
+	test_membarrier_success();
+
+	test_membarrier_get_registrations(/*cmd=*/0);
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/memfd/.gitignore b/tools/testing/selftests/memfd/.gitignore
index afe87c40ac80..dd9a051f608e 100644
--- a/tools/testing/selftests/memfd/.gitignore
+++ b/tools/testing/selftests/memfd/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 fuse_mnt
 fuse_test
 memfd_test
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index 3e7eb7972511..163b6f68631c 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -1,22 +1,28 @@
-CC = $(CROSS_COMPILE)gcc
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -D_FILE_OFFSET_BITS=64
-CFLAGS += -I../../../../include/uapi/
-CFLAGS += -I../../../../include/
-CFLAGS += -I../../../../usr/include/
+CFLAGS += $(KHDR_INCLUDES)
 
-all:
-	$(CC) $(CFLAGS) memfd_test.c -o memfd_test
+TEST_GEN_PROGS := memfd_test
+TEST_PROGS := run_fuse_test.sh run_hugetlbfs_test.sh
+TEST_GEN_FILES := fuse_test fuse_mnt
 
-TEST_PROGS := memfd_test
+VAR_CFLAGS := $(shell pkg-config fuse --cflags 2>/dev/null)
+ifeq ($(VAR_CFLAGS),)
+VAR_CFLAGS := -D_FILE_OFFSET_BITS=64 -I/usr/include/fuse
+endif
+
+VAR_LDLIBS := $(shell pkg-config fuse --libs 2>/dev/null)
+ifeq ($(VAR_LDLIBS),)
+VAR_LDLIBS := -lfuse -pthread
+endif
+
+fuse_mnt.o: CFLAGS += $(VAR_CFLAGS)
 
 include ../lib.mk
 
-build_fuse:
-	$(CC) $(CFLAGS) fuse_mnt.c `pkg-config fuse --cflags --libs` -o fuse_mnt
-	$(CC) $(CFLAGS) fuse_test.c -o fuse_test
+$(OUTPUT)/fuse_mnt: LDLIBS += $(VAR_LDLIBS)
 
-run_fuse: build_fuse
-	@./run_fuse_test.sh || echo "fuse_test: [FAIL]"
+$(OUTPUT)/memfd_test: memfd_test.c common.c
+$(OUTPUT)/fuse_test: fuse_test.c common.c
 
-clean:
-	$(RM) memfd_test fuse_test
+EXTRA_CLEAN = $(OUTPUT)/common.o
diff --git a/tools/testing/selftests/memfd/common.c b/tools/testing/selftests/memfd/common.c
new file mode 100644
index 000000000000..8eb3d75f6e60
--- /dev/null
+++ b/tools/testing/selftests/memfd/common.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#define __EXPORTED_HEADERS__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <linux/fcntl.h>
+#include <linux/memfd.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#include "common.h"
+
+int hugetlbfs_test = 0;
+
+/*
+ * Copied from mlock2-tests.c
+ */
+unsigned long default_huge_page_size(void)
+{
+	unsigned long hps = 0;
+	char *line = NULL;
+	size_t linelen = 0;
+	FILE *f = fopen("/proc/meminfo", "r");
+
+	if (!f)
+		return 0;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "Hugepagesize:       %lu kB", &hps) == 1) {
+			hps <<= 10;
+			break;
+		}
+	}
+
+	free(line);
+	fclose(f);
+	return hps;
+}
+
+int sys_memfd_create(const char *name, unsigned int flags)
+{
+	if (hugetlbfs_test)
+		flags |= MFD_HUGETLB;
+
+	return syscall(__NR_memfd_create, name, flags);
+}
diff --git a/tools/testing/selftests/memfd/common.h b/tools/testing/selftests/memfd/common.h
new file mode 100644
index 000000000000..522d2c630bd8
--- /dev/null
+++ b/tools/testing/selftests/memfd/common.h
@@ -0,0 +1,9 @@
+#ifndef COMMON_H_
+#define COMMON_H_
+
+extern int hugetlbfs_test;
+
+unsigned long default_huge_page_size(void);
+int sys_memfd_create(const char *name, unsigned int flags);
+
+#endif
diff --git a/tools/testing/selftests/memfd/config b/tools/testing/selftests/memfd/config
new file mode 100644
index 000000000000..835c7f4dadcd
--- /dev/null
+++ b/tools/testing/selftests/memfd/config
@@ -0,0 +1 @@
+CONFIG_FUSE_FS=m
diff --git a/tools/testing/selftests/memfd/fuse_mnt.c b/tools/testing/selftests/memfd/fuse_mnt.c
index feacf1280fcd..6936f2a001f3 100644
--- a/tools/testing/selftests/memfd/fuse_mnt.c
+++ b/tools/testing/selftests/memfd/fuse_mnt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memfd test file-system
  * This file uses FUSE to create a dummy file-system with only one file /memfd.
diff --git a/tools/testing/selftests/memfd/fuse_test.c b/tools/testing/selftests/memfd/fuse_test.c
index 67908b18f035..dbc171a3806d 100644
--- a/tools/testing/selftests/memfd/fuse_test.c
+++ b/tools/testing/selftests/memfd/fuse_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memfd GUP test-case
  * This tests memfd interactions with get_user_pages(). We require the
@@ -19,8 +20,9 @@
 #include <inttypes.h>
 #include <limits.h>
 #include <linux/falloc.h>
-#include <linux/fcntl.h>
+#include <fcntl.h>
 #include <linux/memfd.h>
+#include <linux/types.h>
 #include <sched.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -32,14 +34,12 @@
 #include <sys/wait.h>
 #include <unistd.h>
 
+#include "common.h"
+
 #define MFD_DEF_SIZE 8192
-#define STACK_SIZE 65535
+#define STACK_SIZE 65536
 
-static int sys_memfd_create(const char *name,
-			    unsigned int flags)
-{
-	return syscall(__NR_memfd_create, name, flags);
-}
+static size_t mfd_def_size = MFD_DEF_SIZE;
 
 static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
 {
@@ -126,7 +126,7 @@ static void *mfd_assert_mmap_shared(int fd)
 	void *p;
 
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -144,7 +144,7 @@ static void *mfd_assert_mmap_private(int fd)
 	void *p;
 
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_PRIVATE,
 		 fd,
@@ -177,7 +177,7 @@ static int sealing_thread_fn(void *arg)
 	usleep(200000);
 
 	/* unmount mapping before sealing to avoid i_mmap_writable failures */
-	munmap(global_p, MFD_DEF_SIZE);
+	munmap(global_p, mfd_def_size);
 
 	/* Try sealing the global file; expect EBUSY or success. Current
 	 * kernels will never succeed, but in the future, kernels might
@@ -227,7 +227,7 @@ static void join_sealing_thread(pid_t pid)
 
 int main(int argc, char **argv)
 {
-	static const char zero[MFD_DEF_SIZE];
+	char *zero;
 	int fd, mfd, r;
 	void *p;
 	int was_sealed;
@@ -238,6 +238,25 @@ int main(int argc, char **argv)
 		abort();
 	}
 
+	if (argc >= 3) {
+		if (!strcmp(argv[2], "hugetlbfs")) {
+			unsigned long hpage_size = default_huge_page_size();
+
+			if (!hpage_size) {
+				printf("Unable to determine huge page size\n");
+				abort();
+			}
+
+			hugetlbfs_test = 1;
+			mfd_def_size = hpage_size * 2;
+		} else {
+			printf("Unknown option: %s\n", argv[2]);
+			abort();
+		}
+	}
+
+	zero = calloc(sizeof(*zero), mfd_def_size);
+
 	/* open FUSE memfd file for GUP testing */
 	printf("opening: %s\n", argv[1]);
 	fd = open(argv[1], O_RDONLY | O_CLOEXEC);
@@ -248,7 +267,7 @@ int main(int argc, char **argv)
 
 	/* create new memfd-object */
 	mfd = mfd_assert_new("kern_memfd_fuse",
-			     MFD_DEF_SIZE,
+			     mfd_def_size,
 			     MFD_CLOEXEC | MFD_ALLOW_SEALING);
 
 	/* mmap memfd-object for writing */
@@ -267,7 +286,7 @@ int main(int argc, char **argv)
 	 * This guarantees that the receive-buffer is pinned for 1s until the
 	 * data is written into it. The racing ADD_SEALS should thus fail as
 	 * the pages are still pinned. */
-	r = read(fd, p, MFD_DEF_SIZE);
+	r = read(fd, p, mfd_def_size);
 	if (r < 0) {
 		printf("read() failed: %m\n");
 		abort();
@@ -287,17 +306,17 @@ int main(int argc, char **argv)
 	 * then the kernel did a page-replacement or canceled the read() (or
 	 * whatever magic it did..). In that case, the memfd object is still
 	 * all zero.
-	 * In case the memfd-object was *not* sealed, the read() was successfull
+	 * In case the memfd-object was *not* sealed, the read() was successful
 	 * and the memfd object must *not* be all zero.
 	 * Note that in real scenarios, there might be a mixture of both, but
 	 * in this test-cases, we have explicit 200ms delays which should be
 	 * enough to avoid any in-flight writes. */
 
 	p = mfd_assert_mmap_private(mfd);
-	if (was_sealed && memcmp(p, zero, MFD_DEF_SIZE)) {
+	if (was_sealed && memcmp(p, zero, mfd_def_size)) {
 		printf("memfd sealed during read() but data not discarded\n");
 		abort();
-	} else if (!was_sealed && !memcmp(p, zero, MFD_DEF_SIZE)) {
+	} else if (!was_sealed && !memcmp(p, zero, mfd_def_size)) {
 		printf("memfd sealed after read() but data discarded\n");
 		abort();
 	}
@@ -306,6 +325,7 @@ int main(int argc, char **argv)
 	close(fd);
 
 	printf("fuse: DONE\n");
+	free(zero);
 
 	return 0;
 }
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index 0b9eafb7ab7b..5b993924cc3f 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #define __EXPORTED_HEADERS__
 
@@ -5,9 +6,10 @@
 #include <inttypes.h>
 #include <limits.h>
 #include <linux/falloc.h>
-#include <linux/fcntl.h>
+#include <fcntl.h>
 #include <linux/memfd.h>
 #include <sched.h>
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
@@ -15,15 +17,57 @@
 #include <sys/mman.h>
 #include <sys/stat.h>
 #include <sys/syscall.h>
+#include <sys/wait.h>
 #include <unistd.h>
+#include <ctype.h>
+
+#include "common.h"
+
+#define MEMFD_STR	"memfd:"
+#define MEMFD_HUGE_STR	"memfd-hugetlb:"
+#define SHARED_FT_STR	"(shared file-table)"
 
 #define MFD_DEF_SIZE 8192
-#define STACK_SIZE 65535
+#define STACK_SIZE 65536
+
+#define F_SEAL_EXEC	0x0020
+
+#define F_WX_SEALS (F_SEAL_SHRINK | \
+		    F_SEAL_GROW | \
+		    F_SEAL_WRITE | \
+		    F_SEAL_FUTURE_WRITE | \
+		    F_SEAL_EXEC)
+
+#define MFD_NOEXEC_SEAL	0x0008U
+
+/*
+ * Default is not to test hugetlbfs
+ */
+static size_t mfd_def_size = MFD_DEF_SIZE;
+static const char *memfd_str = MEMFD_STR;
 
-static int sys_memfd_create(const char *name,
-			    unsigned int flags)
+static ssize_t fd2name(int fd, char *buf, size_t bufsize)
 {
-	return syscall(__NR_memfd_create, name, flags);
+	char buf1[PATH_MAX];
+	int size;
+	ssize_t nbytes;
+
+	size = snprintf(buf1, PATH_MAX, "/proc/self/fd/%d", fd);
+	if (size < 0) {
+		printf("snprintf(%d) failed on %m\n", fd);
+		abort();
+	}
+
+	/*
+	 * reserver one byte for string termination.
+	 */
+	nbytes = readlink(buf1, buf, bufsize-1);
+	if (nbytes == -1) {
+		printf("readlink(%s) failed %m\n", buf1);
+		abort();
+	}
+	buf[nbytes] = '\0';
+	return nbytes;
 }
 
 static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
@@ -46,6 +90,80 @@ static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
 	return fd;
 }
 
+static void sysctl_assert_write(const char *val)
+{
+	int fd = open("/proc/sys/vm/memfd_noexec", O_WRONLY | O_CLOEXEC);
+
+	if (fd < 0) {
+		printf("open sysctl failed: %m\n");
+		abort();
+	}
+
+	if (write(fd, val, strlen(val)) < 0) {
+		printf("write sysctl %s failed: %m\n", val);
+		abort();
+	}
+}
+
+static void sysctl_fail_write(const char *val)
+{
+	int fd = open("/proc/sys/vm/memfd_noexec", O_WRONLY | O_CLOEXEC);
+
+	if (fd < 0) {
+		printf("open sysctl failed: %m\n");
+		abort();
+	}
+
+	if (write(fd, val, strlen(val)) >= 0) {
+		printf("write sysctl %s succeeded, but failure expected\n",
+				val);
+		abort();
+	}
+}
+
+static void sysctl_assert_equal(const char *val)
+{
+	char *p, buf[128] = {};
+	int fd = open("/proc/sys/vm/memfd_noexec", O_RDONLY | O_CLOEXEC);
+
+	if (fd < 0) {
+		printf("open sysctl failed: %m\n");
+		abort();
+	}
+
+	if (read(fd, buf, sizeof(buf)) < 0) {
+		printf("read sysctl failed: %m\n");
+		abort();
+	}
+
+	/* Strip trailing whitespace. */
+	p = buf;
+	while (!isspace(*p))
+		p++;
+	*p = '\0';
+
+	if (strcmp(buf, val) != 0) {
+		printf("unexpected sysctl value: expected %s, got %s\n", val, buf);
+		abort();
+	}
+}
+
+static int mfd_assert_reopen_fd(int fd_in)
+{
+	int fd;
+	char path[100];
+
+	sprintf(path, "/proc/self/fd/%d", fd_in);
+
+	fd = open(path, O_RDWR);
+	if (fd < 0) {
+		printf("re-open of existing fd %d failed\n", fd_in);
+		abort();
+	}
+
+	return fd;
+}
+
 static void mfd_fail_new(const char *name, unsigned int flags)
 {
 	int r;
@@ -53,7 +171,7 @@ static void mfd_fail_new(const char *name, unsigned int flags)
 	r = sys_memfd_create(name, flags);
 	if (r >= 0) {
 		printf("memfd_create(\"%s\", %u) succeeded, but failure expected\n",
-		       name, flags);
+		       name ? name : "NULL", flags);
 		close(r);
 		abort();
 	}
@@ -74,11 +192,13 @@ static unsigned int mfd_assert_get_seals(int fd)
 
 static void mfd_assert_has_seals(int fd, unsigned int seals)
 {
+	char buf[PATH_MAX];
 	unsigned int s;
+	fd2name(fd, buf, PATH_MAX);
 
 	s = mfd_assert_get_seals(fd);
 	if (s != seals) {
-		printf("%u != %u = GET_SEALS(%d)\n", seals, s, fd);
+		printf("%u != %u = GET_SEALS(%s)\n", seals, s, buf);
 		abort();
 	}
 }
@@ -149,7 +269,7 @@ static void *mfd_assert_mmap_shared(int fd)
 	void *p;
 
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -162,12 +282,30 @@ static void *mfd_assert_mmap_shared(int fd)
 	return p;
 }
 
+static void *mfd_assert_mmap_read_shared(int fd)
+{
+	void *p;
+
+	p = mmap(NULL,
+		 mfd_def_size,
+		 PROT_READ,
+		 MAP_SHARED,
+		 fd,
+		 0);
+	if (p == MAP_FAILED) {
+		printf("mmap() failed: %m\n");
+		abort();
+	}
+
+	return p;
+}
+
 static void *mfd_assert_mmap_private(int fd)
 {
 	void *p;
 
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ,
 		 MAP_PRIVATE,
 		 fd,
@@ -222,7 +360,7 @@ static void mfd_assert_read(int fd)
 
 	/* verify PROT_READ *is* allowed */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ,
 		 MAP_PRIVATE,
 		 fd,
@@ -231,11 +369,11 @@ static void mfd_assert_read(int fd)
 		printf("mmap() failed: %m\n");
 		abort();
 	}
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	/* verify MAP_PRIVATE is *always* allowed (even writable) */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_PRIVATE,
 		 fd,
@@ -244,7 +382,60 @@ static void mfd_assert_read(int fd)
 		printf("mmap() failed: %m\n");
 		abort();
 	}
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
+}
+
+/* Test that PROT_READ + MAP_SHARED mappings work. */
+static void mfd_assert_read_shared(int fd)
+{
+	void *p;
+
+	/* verify PROT_READ and MAP_SHARED *is* allowed */
+	p = mmap(NULL,
+		 mfd_def_size,
+		 PROT_READ,
+		 MAP_SHARED,
+		 fd,
+		 0);
+	if (p == MAP_FAILED) {
+		printf("mmap() failed: %m\n");
+		abort();
+	}
+	munmap(p, mfd_def_size);
+}
+
+static void mfd_assert_fork_private_write(int fd)
+{
+	int *p;
+	pid_t pid;
+
+	p = mmap(NULL,
+		 mfd_def_size,
+		 PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE,
+		 fd,
+		 0);
+	if (p == MAP_FAILED) {
+		printf("mmap() failed: %m\n");
+		abort();
+	}
+
+	p[0] = 22;
+
+	pid = fork();
+	if (pid == 0) {
+		p[0] = 33;
+		exit(0);
+	} else {
+		waitpid(pid, NULL, 0);
+
+		if (p[0] != 22) {
+			printf("MAP_PRIVATE copy-on-write failed: %m\n");
+			abort();
+		}
+	}
+
+	munmap(p, mfd_def_size);
 }
 
 static void mfd_assert_write(int fd)
@@ -253,16 +444,22 @@ static void mfd_assert_write(int fd)
 	void *p;
 	int r;
 
-	/* verify write() succeeds */
-	l = write(fd, "\0\0\0\0", 4);
-	if (l != 4) {
-		printf("write() failed: %m\n");
-		abort();
+	/*
+	 * huegtlbfs does not support write, but we want to
+	 * verify everything else here.
+	 */
+	if (!hugetlbfs_test) {
+		/* verify write() succeeds */
+		l = write(fd, "\0\0\0\0", 4);
+		if (l != 4) {
+			printf("write() failed: %m\n");
+			abort();
+		}
 	}
 
 	/* verify PROT_READ | PROT_WRITE is allowed */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -272,11 +469,11 @@ static void mfd_assert_write(int fd)
 		abort();
 	}
 	*(char *)p = 0;
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	/* verify PROT_WRITE is allowed */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -286,12 +483,12 @@ static void mfd_assert_write(int fd)
 		abort();
 	}
 	*(char *)p = 0;
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	/* verify PROT_READ with MAP_SHARED is allowed and a following
 	 * mprotect(PROT_WRITE) allows writing */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ,
 		 MAP_SHARED,
 		 fd,
@@ -301,20 +498,20 @@ static void mfd_assert_write(int fd)
 		abort();
 	}
 
-	r = mprotect(p, MFD_DEF_SIZE, PROT_READ | PROT_WRITE);
+	r = mprotect(p, mfd_def_size, PROT_READ | PROT_WRITE);
 	if (r < 0) {
 		printf("mprotect() failed: %m\n");
 		abort();
 	}
 
 	*(char *)p = 0;
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	/* verify PUNCH_HOLE works */
 	r = fallocate(fd,
 		      FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
 		      0,
-		      MFD_DEF_SIZE);
+		      mfd_def_size);
 	if (r < 0) {
 		printf("fallocate(PUNCH_HOLE) failed: %m\n");
 		abort();
@@ -336,7 +533,7 @@ static void mfd_fail_write(int fd)
 
 	/* verify PROT_READ | PROT_WRITE is not allowed */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ | PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -348,7 +545,7 @@ static void mfd_fail_write(int fd)
 
 	/* verify PROT_WRITE is not allowed */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_WRITE,
 		 MAP_SHARED,
 		 fd,
@@ -361,24 +558,25 @@ static void mfd_fail_write(int fd)
 	/* Verify PROT_READ with MAP_SHARED with a following mprotect is not
 	 * allowed. Note that for r/w the kernel already prevents the mmap. */
 	p = mmap(NULL,
-		 MFD_DEF_SIZE,
+		 mfd_def_size,
 		 PROT_READ,
 		 MAP_SHARED,
 		 fd,
 		 0);
 	if (p != MAP_FAILED) {
-		r = mprotect(p, MFD_DEF_SIZE, PROT_READ | PROT_WRITE);
+		r = mprotect(p, mfd_def_size, PROT_READ | PROT_WRITE);
 		if (r >= 0) {
 			printf("mmap()+mprotect() didn't fail as expected\n");
 			abort();
 		}
+		munmap(p, mfd_def_size);
 	}
 
 	/* verify PUNCH_HOLE fails */
 	r = fallocate(fd,
 		      FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
 		      0,
-		      MFD_DEF_SIZE);
+		      mfd_def_size);
 	if (r >= 0) {
 		printf("fallocate(PUNCH_HOLE) didn't fail as expected\n");
 		abort();
@@ -389,13 +587,13 @@ static void mfd_assert_shrink(int fd)
 {
 	int r, fd2;
 
-	r = ftruncate(fd, MFD_DEF_SIZE / 2);
+	r = ftruncate(fd, mfd_def_size / 2);
 	if (r < 0) {
 		printf("ftruncate(SHRINK) failed: %m\n");
 		abort();
 	}
 
-	mfd_assert_size(fd, MFD_DEF_SIZE / 2);
+	mfd_assert_size(fd, mfd_def_size / 2);
 
 	fd2 = mfd_assert_open(fd,
 			      O_RDWR | O_CREAT | O_TRUNC,
@@ -409,7 +607,7 @@ static void mfd_fail_shrink(int fd)
 {
 	int r;
 
-	r = ftruncate(fd, MFD_DEF_SIZE / 2);
+	r = ftruncate(fd, mfd_def_size / 2);
 	if (r >= 0) {
 		printf("ftruncate(SHRINK) didn't fail as expected\n");
 		abort();
@@ -424,31 +622,31 @@ static void mfd_assert_grow(int fd)
 {
 	int r;
 
-	r = ftruncate(fd, MFD_DEF_SIZE * 2);
+	r = ftruncate(fd, mfd_def_size * 2);
 	if (r < 0) {
 		printf("ftruncate(GROW) failed: %m\n");
 		abort();
 	}
 
-	mfd_assert_size(fd, MFD_DEF_SIZE * 2);
+	mfd_assert_size(fd, mfd_def_size * 2);
 
 	r = fallocate(fd,
 		      0,
 		      0,
-		      MFD_DEF_SIZE * 4);
+		      mfd_def_size * 4);
 	if (r < 0) {
 		printf("fallocate(ALLOC) failed: %m\n");
 		abort();
 	}
 
-	mfd_assert_size(fd, MFD_DEF_SIZE * 4);
+	mfd_assert_size(fd, mfd_def_size * 4);
 }
 
 static void mfd_fail_grow(int fd)
 {
 	int r;
 
-	r = ftruncate(fd, MFD_DEF_SIZE * 2);
+	r = ftruncate(fd, mfd_def_size * 2);
 	if (r >= 0) {
 		printf("ftruncate(GROW) didn't fail as expected\n");
 		abort();
@@ -457,7 +655,7 @@ static void mfd_fail_grow(int fd)
 	r = fallocate(fd,
 		      0,
 		      0,
-		      MFD_DEF_SIZE * 4);
+		      mfd_def_size * 4);
 	if (r >= 0) {
 		printf("fallocate(ALLOC) didn't fail as expected\n");
 		abort();
@@ -466,30 +664,105 @@ static void mfd_fail_grow(int fd)
 
 static void mfd_assert_grow_write(int fd)
 {
-	static char buf[MFD_DEF_SIZE * 8];
+	static char *buf;
 	ssize_t l;
 
-	l = pwrite(fd, buf, sizeof(buf), 0);
-	if (l != sizeof(buf)) {
+	/* hugetlbfs does not support write */
+	if (hugetlbfs_test)
+		return;
+
+	buf = malloc(mfd_def_size * 8);
+	if (!buf) {
+		printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
+		abort();
+	}
+
+	l = pwrite(fd, buf, mfd_def_size * 8, 0);
+	if (l != (mfd_def_size * 8)) {
 		printf("pwrite() failed: %m\n");
 		abort();
 	}
 
-	mfd_assert_size(fd, MFD_DEF_SIZE * 8);
+	mfd_assert_size(fd, mfd_def_size * 8);
 }
 
 static void mfd_fail_grow_write(int fd)
 {
-	static char buf[MFD_DEF_SIZE * 8];
+	static char *buf;
 	ssize_t l;
 
-	l = pwrite(fd, buf, sizeof(buf), 0);
-	if (l == sizeof(buf)) {
+	/* hugetlbfs does not support write */
+	if (hugetlbfs_test)
+		return;
+
+	buf = malloc(mfd_def_size * 8);
+	if (!buf) {
+		printf("malloc(%zu) failed: %m\n", mfd_def_size * 8);
+		abort();
+	}
+
+	l = pwrite(fd, buf, mfd_def_size * 8, 0);
+	if (l == (mfd_def_size * 8)) {
 		printf("pwrite() didn't fail as expected\n");
 		abort();
 	}
 }
 
+static void mfd_assert_mode(int fd, int mode)
+{
+	struct stat st;
+	char buf[PATH_MAX];
+
+	fd2name(fd, buf, PATH_MAX);
+
+	if (fstat(fd, &st) < 0) {
+		printf("fstat(%s) failed: %m\n", buf);
+		abort();
+	}
+
+	if ((st.st_mode & 07777) != mode) {
+		printf("fstat(%s) wrong file mode 0%04o, but expected 0%04o\n",
+		       buf, (int)st.st_mode & 07777, mode);
+		abort();
+	}
+}
+
+static void mfd_assert_chmod(int fd, int mode)
+{
+	char buf[PATH_MAX];
+
+	fd2name(fd, buf, PATH_MAX);
+
+	if (fchmod(fd, mode) < 0) {
+		printf("fchmod(%s, 0%04o) failed: %m\n", buf, mode);
+		abort();
+	}
+
+	mfd_assert_mode(fd, mode);
+}
+
+static void mfd_fail_chmod(int fd, int mode)
+{
+	struct stat st;
+	char buf[PATH_MAX];
+
+	fd2name(fd, buf, PATH_MAX);
+
+	if (fstat(fd, &st) < 0) {
+		printf("fstat(%s) failed: %m\n", buf);
+		abort();
+	}
+
+	if (fchmod(fd, mode) == 0) {
+		printf("fchmod(%s, 0%04o) didn't fail as expected\n",
+		       buf, mode);
+		abort();
+	}
+
+	/* verify that file mode bits did not change */
+	mfd_assert_mode(fd, st.st_mode & 07777);
+}
+
 static int idle_thread_fn(void *arg)
 {
 	sigset_t set;
@@ -503,7 +776,7 @@ static int idle_thread_fn(void *arg)
 	return 0;
 }
 
-static pid_t spawn_idle_thread(unsigned int flags)
+static pid_t spawn_thread(unsigned int flags, int (*fn)(void *), void *arg)
 {
 	uint8_t *stack;
 	pid_t pid;
@@ -514,10 +787,7 @@ static pid_t spawn_idle_thread(unsigned int flags)
 		abort();
 	}
 
-	pid = clone(idle_thread_fn,
-		    stack + STACK_SIZE,
-		    SIGCHLD | flags,
-		    NULL);
+	pid = clone(fn, stack + STACK_SIZE, SIGCHLD | flags, arg);
 	if (pid < 0) {
 		printf("clone() failed: %m\n");
 		abort();
@@ -526,6 +796,33 @@ static pid_t spawn_idle_thread(unsigned int flags)
 	return pid;
 }
 
+static void join_thread(pid_t pid)
+{
+	int wstatus;
+
+	if (waitpid(pid, &wstatus, 0) < 0) {
+		printf("newpid thread: waitpid() failed: %m\n");
+		abort();
+	}
+
+	if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) != 0) {
+		printf("newpid thread: exited with non-zero error code %d\n",
+		       WEXITSTATUS(wstatus));
+		abort();
+	}
+
+	if (WIFSIGNALED(wstatus)) {
+		printf("newpid thread: killed by signal %d\n",
+		       WTERMSIG(wstatus));
+		abort();
+	}
+}
+
+static pid_t spawn_idle_thread(unsigned int flags)
+{
+	return spawn_thread(flags, idle_thread_fn, NULL);
+}
+
 static void join_idle_thread(pid_t pid)
 {
 	kill(pid, SIGTERM);
@@ -542,6 +839,8 @@ static void test_create(void)
 	char buf[2048];
 	int fd;
 
+	printf("%s CREATE\n", memfd_str);
+
 	/* test NULL name */
 	mfd_fail_new(NULL, 0);
 
@@ -565,6 +864,9 @@ static void test_create(void)
 	mfd_fail_new("", ~0);
 	mfd_fail_new("", 0x80000000U);
 
+	/* verify EXEC and NOEXEC_SEAL can't both be set */
+	mfd_fail_new("", MFD_EXEC | MFD_NOEXEC_SEAL);
+
 	/* verify MFD_CLOEXEC is allowed */
 	fd = mfd_assert_new("", 0, MFD_CLOEXEC);
 	close(fd);
@@ -586,8 +888,10 @@ static void test_basic(void)
 {
 	int fd;
 
+	printf("%s BASIC\n", memfd_str);
+
 	fd = mfd_assert_new("kern_memfd_basic",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 
 	/* add basic seals */
@@ -618,7 +922,7 @@ static void test_basic(void)
 
 	/* verify sealing does not work without MFD_ALLOW_SEALING */
 	fd = mfd_assert_new("kern_memfd_basic",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC);
 	mfd_assert_has_seals(fd, F_SEAL_SEAL);
 	mfd_fail_add_seals(fd, F_SEAL_SHRINK |
@@ -636,8 +940,10 @@ static void test_seal_write(void)
 {
 	int fd;
 
+	printf("%s SEAL-WRITE\n", memfd_str);
+
 	fd = mfd_assert_new("kern_memfd_seal_write",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 	mfd_assert_add_seals(fd, F_SEAL_WRITE);
@@ -653,6 +959,70 @@ static void test_seal_write(void)
 }
 
 /*
+ * Test SEAL_FUTURE_WRITE
+ * Test whether SEAL_FUTURE_WRITE actually prevents modifications.
+ */
+static void test_seal_future_write(void)
+{
+	int fd, fd2;
+	void *p;
+
+	printf("%s SEAL-FUTURE-WRITE\n", memfd_str);
+
+	fd = mfd_assert_new("kern_memfd_seal_future_write",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
+
+	p = mfd_assert_mmap_shared(fd);
+
+	mfd_assert_has_seals(fd, 0);
+
+	mfd_assert_add_seals(fd, F_SEAL_FUTURE_WRITE);
+	mfd_assert_has_seals(fd, F_SEAL_FUTURE_WRITE);
+
+	/* read should pass, writes should fail */
+	mfd_assert_read(fd);
+	mfd_assert_read_shared(fd);
+	mfd_fail_write(fd);
+
+	fd2 = mfd_assert_reopen_fd(fd);
+	/* read should pass, writes should still fail */
+	mfd_assert_read(fd2);
+	mfd_assert_read_shared(fd2);
+	mfd_fail_write(fd2);
+
+	mfd_assert_fork_private_write(fd);
+
+	munmap(p, mfd_def_size);
+	close(fd2);
+	close(fd);
+}
+
+static void test_seal_write_map_read_shared(void)
+{
+	int fd;
+	void *p;
+
+	printf("%s SEAL-WRITE-MAP-READ\n", memfd_str);
+
+	fd = mfd_assert_new("kern_memfd_seal_write_map_read",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
+
+	mfd_assert_add_seals(fd, F_SEAL_WRITE);
+	mfd_assert_has_seals(fd, F_SEAL_WRITE);
+
+	p = mfd_assert_mmap_read_shared(fd);
+
+	mfd_assert_read(fd);
+	mfd_assert_read_shared(fd);
+	mfd_fail_write(fd);
+
+	munmap(p, mfd_def_size);
+	close(fd);
+}
+
+/*
  * Test SEAL_SHRINK
  * Test whether SEAL_SHRINK actually prevents shrinking
  */
@@ -660,8 +1030,10 @@ static void test_seal_shrink(void)
 {
 	int fd;
 
+	printf("%s SEAL-SHRINK\n", memfd_str);
+
 	fd = mfd_assert_new("kern_memfd_seal_shrink",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 	mfd_assert_add_seals(fd, F_SEAL_SHRINK);
@@ -684,8 +1056,10 @@ static void test_seal_grow(void)
 {
 	int fd;
 
+	printf("%s SEAL-GROW\n", memfd_str);
+
 	fd = mfd_assert_new("kern_memfd_seal_grow",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 	mfd_assert_add_seals(fd, F_SEAL_GROW);
@@ -708,8 +1082,10 @@ static void test_seal_resize(void)
 {
 	int fd;
 
+	printf("%s SEAL-RESIZE\n", memfd_str);
+
 	fd = mfd_assert_new("kern_memfd_seal_resize",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 	mfd_assert_add_seals(fd, F_SEAL_SHRINK | F_SEAL_GROW);
@@ -725,15 +1101,368 @@ static void test_seal_resize(void)
 }
 
 /*
+ * Test SEAL_EXEC
+ * Test fd is created with exec and allow sealing.
+ * chmod() cannot change x bits after sealing.
+ */
+static void test_exec_seal(void)
+{
+	int fd;
+
+	printf("%s SEAL-EXEC\n", memfd_str);
+
+	printf("%s	Apply SEAL_EXEC\n", memfd_str);
+	fd = mfd_assert_new("kern_memfd_seal_exec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_EXEC);
+
+	mfd_assert_mode(fd, 0777);
+	mfd_assert_chmod(fd, 0644);
+
+	mfd_assert_has_seals(fd, 0);
+	mfd_assert_add_seals(fd, F_SEAL_EXEC);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+
+	mfd_assert_chmod(fd, 0600);
+	mfd_fail_chmod(fd, 0777);
+	mfd_fail_chmod(fd, 0670);
+	mfd_fail_chmod(fd, 0605);
+	mfd_fail_chmod(fd, 0700);
+	mfd_fail_chmod(fd, 0100);
+	mfd_assert_chmod(fd, 0666);
+	mfd_assert_write(fd);
+	close(fd);
+
+	printf("%s	Apply ALL_SEALS\n", memfd_str);
+	fd = mfd_assert_new("kern_memfd_seal_exec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_EXEC);
+
+	mfd_assert_mode(fd, 0777);
+	mfd_assert_chmod(fd, 0700);
+
+	mfd_assert_has_seals(fd, 0);
+	mfd_assert_add_seals(fd, F_SEAL_EXEC);
+	mfd_assert_has_seals(fd, F_WX_SEALS);
+
+	mfd_fail_chmod(fd, 0711);
+	mfd_fail_chmod(fd, 0600);
+	mfd_fail_write(fd);
+	close(fd);
+}
+
+/*
+ * Test EXEC_NO_SEAL
+ * Test fd is created with exec and not allow sealing.
+ */
+static void test_exec_no_seal(void)
+{
+	int fd;
+
+	printf("%s EXEC_NO_SEAL\n", memfd_str);
+
+	/* Create with EXEC but without ALLOW_SEALING */
+	fd = mfd_assert_new("kern_memfd_exec_no_sealing",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_EXEC);
+	mfd_assert_mode(fd, 0777);
+	mfd_assert_has_seals(fd, F_SEAL_SEAL);
+	mfd_assert_chmod(fd, 0666);
+	close(fd);
+}
+
+/*
+ * Test memfd_create with MFD_NOEXEC flag
+ */
+static void test_noexec_seal(void)
+{
+	int fd;
+
+	printf("%s NOEXEC_SEAL\n", memfd_str);
+
+	/* Create with NOEXEC and ALLOW_SEALING */
+	fd = mfd_assert_new("kern_memfd_noexec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING | MFD_NOEXEC_SEAL);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+
+	/* Create with NOEXEC but without ALLOW_SEALING */
+	fd = mfd_assert_new("kern_memfd_noexec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_NOEXEC_SEAL);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+}
+
+static void test_sysctl_sysctl0(void)
+{
+	int fd;
+
+	sysctl_assert_equal("0");
+
+	fd = mfd_assert_new("kern_memfd_sysctl_0_dfl",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0777);
+	mfd_assert_has_seals(fd, 0);
+	mfd_assert_chmod(fd, 0644);
+	close(fd);
+}
+
+static void test_sysctl_set_sysctl0(void)
+{
+	sysctl_assert_write("0");
+	test_sysctl_sysctl0();
+}
+
+static void test_sysctl_sysctl1(void)
+{
+	int fd;
+
+	sysctl_assert_equal("1");
+
+	fd = mfd_assert_new("kern_memfd_sysctl_1_dfl",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+
+	fd = mfd_assert_new("kern_memfd_sysctl_1_exec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_EXEC | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0777);
+	mfd_assert_has_seals(fd, 0);
+	mfd_assert_chmod(fd, 0644);
+	close(fd);
+
+	fd = mfd_assert_new("kern_memfd_sysctl_1_noexec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_NOEXEC_SEAL | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+}
+
+static void test_sysctl_set_sysctl1(void)
+{
+	sysctl_assert_write("1");
+	test_sysctl_sysctl1();
+}
+
+static void test_sysctl_sysctl2(void)
+{
+	int fd;
+
+	sysctl_assert_equal("2");
+
+	fd = mfd_assert_new("kern_memfd_sysctl_2_dfl",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+
+	mfd_fail_new("kern_memfd_sysctl_2_exec",
+		     MFD_CLOEXEC | MFD_EXEC | MFD_ALLOW_SEALING);
+
+	fd = mfd_assert_new("kern_memfd_sysctl_2_noexec",
+			    mfd_def_size,
+			    MFD_CLOEXEC | MFD_NOEXEC_SEAL | MFD_ALLOW_SEALING);
+	mfd_assert_mode(fd, 0666);
+	mfd_assert_has_seals(fd, F_SEAL_EXEC);
+	mfd_fail_chmod(fd, 0777);
+	close(fd);
+}
+
+static void test_sysctl_set_sysctl2(void)
+{
+	sysctl_assert_write("2");
+	test_sysctl_sysctl2();
+}
+
+static int sysctl_simple_child(void *arg)
+{
+	printf("%s sysctl 0\n", memfd_str);
+	test_sysctl_set_sysctl0();
+
+	printf("%s sysctl 1\n", memfd_str);
+	test_sysctl_set_sysctl1();
+
+	printf("%s sysctl 0\n", memfd_str);
+	test_sysctl_set_sysctl0();
+
+	printf("%s sysctl 2\n", memfd_str);
+	test_sysctl_set_sysctl2();
+
+	printf("%s sysctl 1\n", memfd_str);
+	test_sysctl_set_sysctl1();
+
+	printf("%s sysctl 0\n", memfd_str);
+	test_sysctl_set_sysctl0();
+
+	return 0;
+}
+
+/*
+ * Test sysctl
+ * A very basic test to make sure the core sysctl semantics work.
+ */
+static void test_sysctl_simple(void)
+{
+	int pid = spawn_thread(CLONE_NEWPID, sysctl_simple_child, NULL);
+
+	join_thread(pid);
+}
+
+static int sysctl_nested(void *arg)
+{
+	void (*fn)(void) = arg;
+
+	fn();
+	return 0;
+}
+
+static int sysctl_nested_wait(void *arg)
+{
+	/* Wait for a SIGCONT. */
+	kill(getpid(), SIGSTOP);
+	return sysctl_nested(arg);
+}
+
+static void test_sysctl_sysctl1_failset(void)
+{
+	sysctl_fail_write("0");
+	test_sysctl_sysctl1();
+}
+
+static void test_sysctl_sysctl2_failset(void)
+{
+	sysctl_fail_write("1");
+	test_sysctl_sysctl2();
+
+	sysctl_fail_write("0");
+	test_sysctl_sysctl2();
+}
+
+static int sysctl_nested_child(void *arg)
+{
+	int pid;
+
+	printf("%s nested sysctl 0\n", memfd_str);
+	sysctl_assert_write("0");
+	/* A further nested pidns works the same. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_simple_child, NULL);
+	join_thread(pid);
+
+	printf("%s nested sysctl 1\n", memfd_str);
+	sysctl_assert_write("1");
+	/* Child inherits our setting. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested, test_sysctl_sysctl1);
+	join_thread(pid);
+	/* Child cannot raise the setting. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested,
+			   test_sysctl_sysctl1_failset);
+	join_thread(pid);
+	/* Child can lower the setting. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested,
+			   test_sysctl_set_sysctl2);
+	join_thread(pid);
+	/* Child lowering the setting has no effect on our setting. */
+	test_sysctl_sysctl1();
+
+	printf("%s nested sysctl 2\n", memfd_str);
+	sysctl_assert_write("2");
+	/* Child inherits our setting. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested, test_sysctl_sysctl2);
+	join_thread(pid);
+	/* Child cannot raise the setting. */
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested,
+			   test_sysctl_sysctl2_failset);
+	join_thread(pid);
+
+	/* Verify that the rules are actually inherited after fork. */
+	printf("%s nested sysctl 0 -> 1 after fork\n", memfd_str);
+	sysctl_assert_write("0");
+
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested_wait,
+			   test_sysctl_sysctl1_failset);
+	sysctl_assert_write("1");
+	kill(pid, SIGCONT);
+	join_thread(pid);
+
+	printf("%s nested sysctl 0 -> 2 after fork\n", memfd_str);
+	sysctl_assert_write("0");
+
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested_wait,
+			   test_sysctl_sysctl2_failset);
+	sysctl_assert_write("2");
+	kill(pid, SIGCONT);
+	join_thread(pid);
+
+	/*
+	 * Verify that the current effective setting is saved on fork, meaning
+	 * that the parent lowering the sysctl doesn't affect already-forked
+	 * children.
+	 */
+	printf("%s nested sysctl 2 -> 1 after fork\n", memfd_str);
+	sysctl_assert_write("2");
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested_wait,
+			   test_sysctl_sysctl2);
+	sysctl_assert_write("1");
+	kill(pid, SIGCONT);
+	join_thread(pid);
+
+	printf("%s nested sysctl 2 -> 0 after fork\n", memfd_str);
+	sysctl_assert_write("2");
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested_wait,
+			   test_sysctl_sysctl2);
+	sysctl_assert_write("0");
+	kill(pid, SIGCONT);
+	join_thread(pid);
+
+	printf("%s nested sysctl 1 -> 0 after fork\n", memfd_str);
+	sysctl_assert_write("1");
+	pid = spawn_thread(CLONE_NEWPID, sysctl_nested_wait,
+			   test_sysctl_sysctl1);
+	sysctl_assert_write("0");
+	kill(pid, SIGCONT);
+	join_thread(pid);
+
+	return 0;
+}
+
+/*
+ * Test sysctl with nested pid namespaces
+ * Make sure that the sysctl nesting semantics work correctly.
+ */
+static void test_sysctl_nested(void)
+{
+	int pid = spawn_thread(CLONE_NEWPID, sysctl_nested_child, NULL);
+
+	join_thread(pid);
+}
+
+/*
  * Test sharing via dup()
  * Test that seals are shared between dupped FDs and they're all equal.
  */
-static void test_share_dup(void)
+static void test_share_dup(char *banner, char *b_suffix)
 {
 	int fd, fd2;
 
+	printf("%s %s %s\n", memfd_str, banner, b_suffix);
+
 	fd = mfd_assert_new("kern_memfd_share_dup",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 
@@ -767,13 +1496,15 @@ static void test_share_dup(void)
  * Test sealing with active mmap()s
  * Modifying seals is only allowed if no other mmap() refs exist.
  */
-static void test_share_mmap(void)
+static void test_share_mmap(char *banner, char *b_suffix)
 {
 	int fd;
 	void *p;
 
+	printf("%s %s %s\n", memfd_str,  banner, b_suffix);
+
 	fd = mfd_assert_new("kern_memfd_share_mmap",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 
@@ -783,13 +1514,13 @@ static void test_share_mmap(void)
 	mfd_assert_has_seals(fd, 0);
 	mfd_assert_add_seals(fd, F_SEAL_SHRINK);
 	mfd_assert_has_seals(fd, F_SEAL_SHRINK);
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	/* readable ref allows sealing */
 	p = mfd_assert_mmap_private(fd);
 	mfd_assert_add_seals(fd, F_SEAL_WRITE);
 	mfd_assert_has_seals(fd, F_SEAL_WRITE | F_SEAL_SHRINK);
-	munmap(p, MFD_DEF_SIZE);
+	munmap(p, mfd_def_size);
 
 	close(fd);
 }
@@ -800,12 +1531,14 @@ static void test_share_mmap(void)
  * This is *not* like dup(), but like a real separate open(). Make sure the
  * semantics are as expected and we correctly check for RDONLY / WRONLY / RDWR.
  */
-static void test_share_open(void)
+static void test_share_open(char *banner, char *b_suffix)
 {
 	int fd, fd2;
 
+	printf("%s %s %s\n", memfd_str, banner, b_suffix);
+
 	fd = mfd_assert_new("kern_memfd_share_open",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 
@@ -838,15 +1571,17 @@ static void test_share_open(void)
 
 /*
  * Test sharing via fork()
- * Test whether seal-modifications work as expected with forked childs.
+ * Test whether seal-modifications work as expected with forked children.
  */
-static void test_share_fork(void)
+static void test_share_fork(char *banner, char *b_suffix)
 {
 	int fd;
 	pid_t pid;
 
+	printf("%s %s %s\n", memfd_str, banner, b_suffix);
+
 	fd = mfd_assert_new("kern_memfd_share_fork",
-			    MFD_DEF_SIZE,
+			    mfd_def_size,
 			    MFD_CLOEXEC | MFD_ALLOW_SEALING);
 	mfd_assert_has_seals(fd, 0);
 
@@ -865,44 +1600,65 @@ static void test_share_fork(void)
 	close(fd);
 }
 
+static bool pid_ns_supported(void)
+{
+	return access("/proc/self/ns/pid", F_OK) == 0;
+}
+
 int main(int argc, char **argv)
 {
 	pid_t pid;
 
-	printf("memfd: CREATE\n");
+	if (argc == 2) {
+		if (!strcmp(argv[1], "hugetlbfs")) {
+			unsigned long hpage_size = default_huge_page_size();
+
+			if (!hpage_size) {
+				printf("Unable to determine huge page size\n");
+				abort();
+			}
+
+			hugetlbfs_test = 1;
+			memfd_str = MEMFD_HUGE_STR;
+			mfd_def_size = hpage_size * 2;
+		} else {
+			printf("Unknown option: %s\n", argv[1]);
+			abort();
+		}
+	}
+
 	test_create();
-	printf("memfd: BASIC\n");
 	test_basic();
+	test_exec_seal();
+	test_exec_no_seal();
+	test_noexec_seal();
 
-	printf("memfd: SEAL-WRITE\n");
 	test_seal_write();
-	printf("memfd: SEAL-SHRINK\n");
+	test_seal_future_write();
+	test_seal_write_map_read_shared();
 	test_seal_shrink();
-	printf("memfd: SEAL-GROW\n");
 	test_seal_grow();
-	printf("memfd: SEAL-RESIZE\n");
 	test_seal_resize();
 
-	printf("memfd: SHARE-DUP\n");
-	test_share_dup();
-	printf("memfd: SHARE-MMAP\n");
-	test_share_mmap();
-	printf("memfd: SHARE-OPEN\n");
-	test_share_open();
-	printf("memfd: SHARE-FORK\n");
-	test_share_fork();
+	if (pid_ns_supported()) {
+		test_sysctl_simple();
+		test_sysctl_nested();
+	} else {
+		printf("PID namespaces are not supported; skipping sysctl tests\n");
+	}
+
+	test_share_dup("SHARE-DUP", "");
+	test_share_mmap("SHARE-MMAP", "");
+	test_share_open("SHARE-OPEN", "");
+	test_share_fork("SHARE-FORK", "");
 
 	/* Run test-suite in a multi-threaded environment with a shared
 	 * file-table. */
 	pid = spawn_idle_thread(CLONE_FILES | CLONE_FS | CLONE_VM);
-	printf("memfd: SHARE-DUP (shared file-table)\n");
-	test_share_dup();
-	printf("memfd: SHARE-MMAP (shared file-table)\n");
-	test_share_mmap();
-	printf("memfd: SHARE-OPEN (shared file-table)\n");
-	test_share_open();
-	printf("memfd: SHARE-FORK (shared file-table)\n");
-	test_share_fork();
+	test_share_dup("SHARE-DUP", SHARED_FT_STR);
+	test_share_mmap("SHARE-MMAP", SHARED_FT_STR);
+	test_share_open("SHARE-OPEN", SHARED_FT_STR);
+	test_share_fork("SHARE-FORK", SHARED_FT_STR);
 	join_idle_thread(pid);
 
 	printf("memfd: DONE\n");
diff --git a/tools/testing/selftests/memfd/run_fuse_test.sh b/tools/testing/selftests/memfd/run_fuse_test.sh
index 69b930e1e041..22e572e2d66a 100644..100755
--- a/tools/testing/selftests/memfd/run_fuse_test.sh
+++ b/tools/testing/selftests/memfd/run_fuse_test.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if test -d "./mnt" ; then
 	fusermount -u ./mnt
@@ -9,6 +10,6 @@ set -e
 
 mkdir mnt
 ./fuse_mnt ./mnt
-./fuse_test ./mnt/memfd
+./fuse_test ./mnt/memfd $@
 fusermount -u ./mnt
 rmdir ./mnt
diff --git a/tools/testing/selftests/memfd/run_hugetlbfs_test.sh b/tools/testing/selftests/memfd/run_hugetlbfs_test.sh
new file mode 100755
index 000000000000..fb633eeb0290
--- /dev/null
+++ b/tools/testing/selftests/memfd/run_hugetlbfs_test.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+# please run as root
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+#
+# To test memfd_create with hugetlbfs, there needs to be hpages_test
+# huge pages free.  Attempt to allocate enough pages to test.
+#
+hpages_test=8
+
+#
+# Get count of free huge pages from /proc/meminfo
+#
+while read name size unit; do
+        if [ "$name" = "HugePages_Free:" ]; then
+                freepgs=$size
+        fi
+done < /proc/meminfo
+
+#
+# If not enough free huge pages for test, attempt to increase
+#
+if [ -n "$freepgs" ] && [ $freepgs -lt $hpages_test ]; then
+	nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
+	hpages_needed=`expr $hpages_test - $freepgs`
+
+	if [ $UID != 0 ]; then
+		echo "Please run memfd with hugetlbfs test as root"
+		exit $ksft_skip
+	fi
+
+	echo 3 > /proc/sys/vm/drop_caches
+	echo $(( $hpages_needed + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages
+	while read name size unit; do
+		if [ "$name" = "HugePages_Free:" ]; then
+			freepgs=$size
+		fi
+	done < /proc/meminfo
+fi
+
+#
+# If still not enough huge pages available, exit.  But, give back any huge
+# pages potentially allocated above.
+#
+if [ $freepgs -lt $hpages_test ]; then
+	# nr_hugepgs non-zero only if we attempted to increase
+	if [ -n "$nr_hugepgs" ]; then
+		echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
+	fi
+	printf "Not enough huge pages available (%d < %d)\n" \
+		$freepgs $needpgs
+	exit $ksft_skip
+fi
+
+#
+# Run the hugetlbfs test
+#
+./memfd_test hugetlbfs
+./run_fuse_test.sh hugetlbfs
+
+#
+# Give back any huge pages allocated for the test
+#
+if [ -n "$nr_hugepgs" ]; then
+	echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
+fi
diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile
index afb2624c7048..e0a625e34f40 100644
--- a/tools/testing/selftests/memory-hotplug/Makefile
+++ b/tools/testing/selftests/memory-hotplug/Makefile
@@ -1,12 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 include ../lib.mk
 
 TEST_PROGS := mem-on-off-test.sh
-override RUN_TESTS := ./mem-on-off-test.sh -r 2 || echo "selftests: memory-hotplug [FAIL]"
-override EMIT_TESTS := echo "$(RUN_TESTS)"
 
 run_full_test:
-	@/bin/bash ./mem-on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
+	@/bin/bash ./mem-on-off-test.sh -r 10 && echo "memory-hotplug selftests: [PASS]" || echo "memory-hotplug selftests: [FAIL]"
 
 clean:
diff --git a/tools/testing/selftests/memory-hotplug/config b/tools/testing/selftests/memory-hotplug/config
new file mode 100644
index 000000000000..1eef042a31e1
--- /dev/null
+++ b/tools/testing/selftests/memory-hotplug/config
@@ -0,0 +1,4 @@
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_NOTIFIER_ERROR_INJECTION=y
+CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
+CONFIG_MEMORY_HOTREMOVE=y
diff --git a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
index 6cddde0b96f8..611be86eaf3d 100755
--- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
+++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
@@ -1,26 +1,35 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 SYSFS=
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
 prerequisite()
 {
 	msg="skip all tests:"
 
 	if [ $UID != 0 ]; then
 		echo $msg must be run as root >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
 
 	if [ ! -d "$SYSFS" ]; then
 		echo $msg sysfs is not mounted >&2
-		exit 0
+		exit $ksft_skip
 	fi
 
 	if ! ls $SYSFS/devices/system/memory/memory* > /dev/null 2>&1; then
 		echo $msg memory hotplug is not supported >&2
-		exit 0
+		exit $ksft_skip
+	fi
+
+	if ! grep -q 1 $SYSFS/devices/system/memory/memory*/removable; then
+		echo $msg no hot-pluggable memory >&2
+		exit $ksft_skip
 	fi
 }
 
@@ -39,7 +48,7 @@ hotpluggable_memory()
 	done
 }
 
-hotplaggable_offline_memory()
+hotpluggable_offline_memory()
 {
 	hotpluggable_memory offline
 }
@@ -75,9 +84,12 @@ online_memory_expect_success()
 
 	if ! online_memory $memory; then
 		echo $FUNCNAME $memory: unexpected fail >&2
+		return 1
 	elif ! memory_is_online $memory; then
 		echo $FUNCNAME $memory: unexpected offline >&2
+		return 1
 	fi
+	return 0
 }
 
 online_memory_expect_fail()
@@ -86,9 +98,12 @@ online_memory_expect_fail()
 
 	if online_memory $memory 2> /dev/null; then
 		echo $FUNCNAME $memory: unexpected success >&2
+		return 1
 	elif ! memory_is_offline $memory; then
 		echo $FUNCNAME $memory: unexpected online >&2
+		return 1
 	fi
+	return 0
 }
 
 offline_memory_expect_success()
@@ -97,9 +112,12 @@ offline_memory_expect_success()
 
 	if ! offline_memory $memory; then
 		echo $FUNCNAME $memory: unexpected fail >&2
+		return 1
 	elif ! memory_is_offline $memory; then
 		echo $FUNCNAME $memory: unexpected offline >&2
+		return 1
 	fi
+	return 0
 }
 
 offline_memory_expect_fail()
@@ -108,14 +126,28 @@ offline_memory_expect_fail()
 
 	if offline_memory $memory 2> /dev/null; then
 		echo $FUNCNAME $memory: unexpected success >&2
+		return 1
 	elif ! memory_is_online $memory; then
 		echo $FUNCNAME $memory: unexpected offline >&2
+		return 1
 	fi
+	return 0
+}
+
+online_all_offline_memory()
+{
+	for memory in `hotpluggable_offline_memory`; do
+		if ! online_memory_expect_success $memory; then
+			retval=1
+		fi
+	done
 }
 
 error=-12
 priority=0
-ratio=10
+# Run with default of ratio=2 for Kselftest run
+ratio=2
+retval=0
 
 while getopts e:hp:r: opt; do
 	case $opt in
@@ -131,6 +163,10 @@ while getopts e:hp:r: opt; do
 		;;
 	r)
 		ratio=$OPTARG
+		if [ "$ratio" -gt 100 ] || [ "$ratio" -lt 0 ]; then
+			echo "The percentage should be an integer within 0~100 range"
+			exit 1
+		fi
 		;;
 	esac
 done
@@ -143,35 +179,61 @@ fi
 prerequisite
 
 echo "Test scope: $ratio% hotplug memory"
-echo -e "\t online all hotplug memory in offline state"
-echo -e "\t offline $ratio% hotplug memory in online state"
-echo -e "\t online all hotplug memory in offline state"
 
 #
 # Online all hot-pluggable memory
 #
-for memory in `hotplaggable_offline_memory`; do
-	echo offline-online $memory
-	online_memory_expect_success $memory
-done
+hotpluggable_num=`hotpluggable_offline_memory | wc -l`
+echo -e "\t online all hot-pluggable memory in offline state:"
+if [ "$hotpluggable_num" -gt 0 ]; then
+	for memory in `hotpluggable_offline_memory`; do
+		echo "offline->online memory$memory"
+		if ! online_memory_expect_success $memory; then
+			retval=1
+		fi
+	done
+else
+	echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
+fi
 
 #
 # Offline $ratio percent of hot-pluggable memory
 #
+hotpluggable_num=`hotpluggable_online_memory | wc -l`
+target=`echo "a=$hotpluggable_num*$ratio; if ( a%100 ) a/100+1 else a/100" | bc`
+echo -e "\t offline $ratio% hot-pluggable memory in online state"
+echo -e "\t trying to offline $target out of $hotpluggable_num memory block(s):"
 for memory in `hotpluggable_online_memory`; do
-	if [ $((RANDOM % 100)) -lt $ratio ]; then
-		echo online-offline $memory
-		offline_memory_expect_success $memory
+	if [ "$target" -gt 0 ]; then
+		echo "online->offline memory$memory"
+		if offline_memory_expect_success $memory &>/dev/null; then
+			target=$(($target - 1))
+			echo "-> Success"
+		else
+			echo "-> Failure"
+		fi
 	fi
 done
+if [ "$target" -gt 0 ]; then
+	retval=1
+	echo -e "\t\t FAILED - unable to offline some memory blocks, device busy?"
+fi
 
 #
 # Online all hot-pluggable memory again
 #
-for memory in `hotplaggable_offline_memory`; do
-	echo offline-online $memory
-	online_memory_expect_success $memory
-done
+hotpluggable_num=`hotpluggable_offline_memory | wc -l`
+echo -e "\t online all hot-pluggable memory in offline state:"
+if [ "$hotpluggable_num" -gt 0 ]; then
+	for memory in `hotpluggable_offline_memory`; do
+		echo "offline->online memory$memory"
+		if ! online_memory_expect_success $memory; then
+			retval=1
+		fi
+	done
+else
+	echo -e "\t\t SKIPPED - no hot-pluggable memory in offline state"
+fi
 
 #
 # Test with memory notifier error injection
@@ -189,15 +251,16 @@ prerequisite_extra()
 
 	if [ ! -d "$DEBUGFS" ]; then
 		echo $msg debugfs is not mounted >&2
-		exit 0
+		exit $retval
 	fi
 
 	if [ ! -d $NOTIFIER_ERR_INJECT_DIR ]; then
 		echo $msg memory-notifier-error-inject module is not available >&2
-		exit 0
+		exit $retval
 	fi
 }
 
+echo -e "\t Test with memory notifier error injection"
 prerequisite_extra
 
 #
@@ -206,7 +269,7 @@ prerequisite_extra
 echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
 for memory in `hotpluggable_online_memory`; do
 	if [ $((RANDOM % 100)) -lt $ratio ]; then
-		offline_memory_expect_success $memory
+		offline_memory_expect_success $memory &>/dev/null
 	fi
 done
 
@@ -214,25 +277,36 @@ done
 # Test memory hot-add error handling (offline => online)
 #
 echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
-for memory in `hotplaggable_offline_memory`; do
-	online_memory_expect_fail $memory
+for memory in `hotpluggable_offline_memory`; do
+	if ! online_memory_expect_fail $memory; then
+		retval=1
+	fi
 done
 
 #
 # Online all hot-pluggable memory
 #
 echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_ONLINE/error
-for memory in `hotplaggable_offline_memory`; do
-	online_memory_expect_success $memory
-done
+online_all_offline_memory
 
 #
 # Test memory hot-remove error handling (online => offline)
 #
 echo $error > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
 for memory in `hotpluggable_online_memory`; do
-	offline_memory_expect_fail $memory
+	if [ $((RANDOM % 100)) -lt $ratio ]; then
+		if ! offline_memory_expect_fail $memory; then
+			retval=1
+		fi
+	fi
 done
 
 echo 0 > $NOTIFIER_ERR_INJECT_DIR/actions/MEM_GOING_OFFLINE/error
 /sbin/modprobe -q -r memory-notifier-error-inject
+
+#
+# Restore memory before exit
+#
+online_all_offline_memory
+
+exit $retval
diff --git a/tools/testing/selftests/mincore/.gitignore b/tools/testing/selftests/mincore/.gitignore
new file mode 100644
index 000000000000..15c4dfc2df00
--- /dev/null
+++ b/tools/testing/selftests/mincore/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0+
+mincore_selftest
diff --git a/tools/testing/selftests/mincore/Makefile b/tools/testing/selftests/mincore/Makefile
new file mode 100644
index 000000000000..38c7db1e8926
--- /dev/null
+++ b/tools/testing/selftests/mincore/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+CFLAGS += -Wall
+
+TEST_GEN_PROGS := mincore_selftest
+include ../lib.mk
diff --git a/tools/testing/selftests/mincore/mincore_selftest.c b/tools/testing/selftests/mincore/mincore_selftest.c
new file mode 100644
index 000000000000..cdd022c1c497
--- /dev/null
+++ b/tools/testing/selftests/mincore/mincore_selftest.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * kselftest suite for mincore().
+ *
+ * Copyright (C) 2020 Collabora, Ltd.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <string.h>
+#include <fcntl.h>
+
+#include "kselftest.h"
+#include "kselftest_harness.h"
+
+/* Default test file size: 4MB */
+#define MB (1UL << 20)
+#define FILE_SIZE (4 * MB)
+
+
+/*
+ * Tests the user interface. This test triggers most of the documented
+ * error conditions in mincore().
+ */
+TEST(basic_interface)
+{
+	int retval;
+	int page_size;
+	unsigned char vec[1];
+	char *addr;
+
+	page_size = sysconf(_SC_PAGESIZE);
+
+	/* Query a 0 byte sized range */
+	retval = mincore(0, 0, vec);
+	EXPECT_EQ(0, retval);
+
+	/* Addresses in the specified range are invalid or unmapped */
+	errno = 0;
+	retval = mincore(NULL, page_size, vec);
+	EXPECT_EQ(-1, retval);
+	EXPECT_EQ(ENOMEM, errno);
+
+	errno = 0;
+	addr = mmap(NULL, page_size, PROT_READ | PROT_WRITE,
+		MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(MAP_FAILED, addr) {
+		TH_LOG("mmap error: %s", strerror(errno));
+	}
+
+	/* <addr> argument is not page-aligned */
+	errno = 0;
+	retval = mincore(addr + 1, page_size, vec);
+	EXPECT_EQ(-1, retval);
+	EXPECT_EQ(EINVAL, errno);
+
+	/* <length> argument is too large */
+	errno = 0;
+	retval = mincore(addr, -1, vec);
+	EXPECT_EQ(-1, retval);
+	EXPECT_EQ(ENOMEM, errno);
+
+	/* <vec> argument points to an illegal address */
+	errno = 0;
+	retval = mincore(addr, page_size, NULL);
+	EXPECT_EQ(-1, retval);
+	EXPECT_EQ(EFAULT, errno);
+	munmap(addr, page_size);
+}
+
+
+/*
+ * Test mincore() behavior on a private anonymous page mapping.
+ * Check that the page is not loaded into memory right after the mapping
+ * but after accessing it (on-demand allocation).
+ * Then free the page and check that it's not memory-resident.
+ */
+TEST(check_anonymous_locked_pages)
+{
+	unsigned char vec[1];
+	char *addr;
+	int retval;
+	int page_size;
+
+	page_size = sysconf(_SC_PAGESIZE);
+
+	/* Map one page and check it's not memory-resident */
+	errno = 0;
+	addr = mmap(NULL, page_size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(MAP_FAILED, addr) {
+		TH_LOG("mmap error: %s", strerror(errno));
+	}
+	retval = mincore(addr, page_size, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(0, vec[0]) {
+		TH_LOG("Page found in memory before use");
+	}
+
+	/* Touch the page and check again. It should now be in memory */
+	addr[0] = 1;
+	mlock(addr, page_size);
+	retval = mincore(addr, page_size, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(1, vec[0]) {
+		TH_LOG("Page not found in memory after use");
+	}
+
+	/*
+	 * It shouldn't be memory-resident after unlocking it and
+	 * marking it as unneeded.
+	 */
+	munlock(addr, page_size);
+	madvise(addr, page_size, MADV_DONTNEED);
+	retval = mincore(addr, page_size, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(0, vec[0]) {
+		TH_LOG("Page in memory after being zapped");
+	}
+	munmap(addr, page_size);
+}
+
+
+/*
+ * Check mincore() behavior on huge pages.
+ * This test will be skipped if the mapping fails (ie. if there are no
+ * huge pages available).
+ *
+ * Make sure the system has at least one free huge page, check
+ * "HugePages_Free" in /proc/meminfo.
+ * Increment /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages if
+ * needed.
+ */
+TEST(check_huge_pages)
+{
+	unsigned char vec[1];
+	char *addr;
+	int retval;
+	int page_size;
+
+	page_size = sysconf(_SC_PAGESIZE);
+
+	errno = 0;
+	addr = mmap(NULL, page_size, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+		-1, 0);
+	if (addr == MAP_FAILED) {
+		if (errno == ENOMEM || errno == EINVAL)
+			SKIP(return, "No huge pages available or CONFIG_HUGETLB_PAGE disabled.");
+		else
+			TH_LOG("mmap error: %s", strerror(errno));
+	}
+	retval = mincore(addr, page_size, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(0, vec[0]) {
+		TH_LOG("Page found in memory before use");
+	}
+
+	addr[0] = 1;
+	mlock(addr, page_size);
+	retval = mincore(addr, page_size, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(1, vec[0]) {
+		TH_LOG("Page not found in memory after use");
+	}
+
+	munlock(addr, page_size);
+	munmap(addr, page_size);
+}
+
+
+/*
+ * Test mincore() behavior on a file-backed page.
+ * No pages should be loaded into memory right after the mapping. Then,
+ * accessing any address in the mapping range should load the page
+ * containing the address and a number of subsequent pages (readahead).
+ *
+ * The actual readahead settings depend on the test environment, so we
+ * can't make a lot of assumptions about that. This test covers the most
+ * general cases.
+ */
+TEST(check_file_mmap)
+{
+	unsigned char *vec;
+	int vec_size;
+	char *addr;
+	int retval;
+	int page_size;
+	int fd;
+	int i;
+	int ra_pages = 0;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	vec_size = FILE_SIZE / page_size;
+	if (FILE_SIZE % page_size)
+		vec_size++;
+
+	vec = calloc(vec_size, sizeof(unsigned char));
+	ASSERT_NE(NULL, vec) {
+		TH_LOG("Can't allocate array");
+	}
+
+	errno = 0;
+	fd = open(".", O_TMPFILE | O_RDWR, 0600);
+	if (fd < 0) {
+		ASSERT_EQ(errno, EOPNOTSUPP) {
+			TH_LOG("Can't create temporary file: %s",
+			       strerror(errno));
+		}
+		SKIP(goto out_free, "O_TMPFILE not supported by filesystem.");
+	}
+	errno = 0;
+	retval = fallocate(fd, 0, 0, FILE_SIZE);
+	if (retval) {
+		ASSERT_EQ(errno, EOPNOTSUPP) {
+			TH_LOG("Error allocating space for the temporary file: %s",
+			       strerror(errno));
+		}
+		SKIP(goto out_close, "fallocate not supported by filesystem.");
+	}
+
+	/*
+	 * Map the whole file, the pages shouldn't be fetched yet.
+	 */
+	errno = 0;
+	addr = mmap(NULL, FILE_SIZE, PROT_READ | PROT_WRITE,
+			MAP_SHARED, fd, 0);
+	ASSERT_NE(MAP_FAILED, addr) {
+		TH_LOG("mmap error: %s", strerror(errno));
+	}
+	retval = mincore(addr, FILE_SIZE, vec);
+	ASSERT_EQ(0, retval);
+	for (i = 0; i < vec_size; i++) {
+		ASSERT_EQ(0, vec[i]) {
+			TH_LOG("Unexpected page in memory");
+		}
+	}
+
+	/*
+	 * Touch a page in the middle of the mapping. We expect the next
+	 * few pages (the readahead window) to be populated too.
+	 */
+	addr[FILE_SIZE / 2] = 1;
+	retval = mincore(addr, FILE_SIZE, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(1, vec[FILE_SIZE / 2 / page_size]) {
+		TH_LOG("Page not found in memory after use");
+	}
+
+	i = FILE_SIZE / 2 / page_size + 1;
+	while (i < vec_size && vec[i]) {
+		ra_pages++;
+		i++;
+	}
+	EXPECT_GT(ra_pages, 0) {
+		TH_LOG("No read-ahead pages found in memory");
+	}
+
+	/*
+	 * End of the readahead window. The rest of the pages shouldn't
+	 * be in memory.
+	 */
+	if (i < vec_size) {
+		while (i < vec_size && !vec[i])
+			i++;
+		EXPECT_EQ(vec_size, i) {
+			TH_LOG("Unexpected page in memory beyond readahead window");
+		}
+	}
+
+	munmap(addr, FILE_SIZE);
+out_close:
+	close(fd);
+out_free:
+	free(vec);
+}
+
+
+/*
+ * Test mincore() behavior on a page backed by a tmpfs file.  This test
+ * performs the same steps as the previous one.
+ */
+TEST(check_tmpfs_mmap)
+{
+	unsigned char *vec;
+	int vec_size;
+	char *addr;
+	int retval;
+	int page_size;
+	int fd;
+	int i;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	vec_size = FILE_SIZE / page_size;
+	if (FILE_SIZE % page_size)
+		vec_size++;
+
+	vec = calloc(vec_size, sizeof(unsigned char));
+	ASSERT_NE(NULL, vec) {
+		TH_LOG("Can't allocate array");
+	}
+
+	errno = 0;
+	fd = open("/dev/shm", O_TMPFILE | O_RDWR, 0600);
+	ASSERT_NE(-1, fd) {
+		TH_LOG("Can't create temporary file: %s",
+			strerror(errno));
+	}
+	errno = 0;
+	retval = fallocate(fd, 0, 0, FILE_SIZE);
+	ASSERT_EQ(0, retval) {
+		TH_LOG("Error allocating space for the temporary file: %s",
+			strerror(errno));
+	}
+
+	/*
+	 * Map the whole file, the pages shouldn't be fetched yet.
+	 */
+	errno = 0;
+	addr = mmap(NULL, FILE_SIZE, PROT_READ | PROT_WRITE,
+			MAP_SHARED, fd, 0);
+	ASSERT_NE(MAP_FAILED, addr) {
+		TH_LOG("mmap error: %s", strerror(errno));
+	}
+	retval = mincore(addr, FILE_SIZE, vec);
+	ASSERT_EQ(0, retval);
+	for (i = 0; i < vec_size; i++) {
+		ASSERT_EQ(0, vec[i]) {
+			TH_LOG("Unexpected page in memory");
+		}
+	}
+
+	/*
+	 * Touch a page in the middle of the mapping.
+	 */
+	addr[FILE_SIZE / 2] = 1;
+	retval = mincore(addr, FILE_SIZE, vec);
+	ASSERT_EQ(0, retval);
+	ASSERT_EQ(1, vec[FILE_SIZE / 2 / page_size]) {
+		TH_LOG("Page not found in memory after use");
+	}
+
+	munmap(addr, FILE_SIZE);
+	close(fd);
+	free(vec);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/.gitignore b/tools/testing/selftests/mm/.gitignore
new file mode 100644
index 000000000000..c2a8586e51a1
--- /dev/null
+++ b/tools/testing/selftests/mm/.gitignore
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only
+cow
+hugepage-mmap
+hugepage-mremap
+hugepage-shm
+hugepage-vmemmap
+hugetlb-madvise
+hugetlb-read-hwpoison
+hugetlb-soft-offline
+khugepaged
+map_hugetlb
+map_populate
+thuge-gen
+compaction_test
+migration
+mlock2-tests
+mrelease_test
+mremap_dontunmap
+mremap_test
+on-fault-limit
+transhuge-stress
+pagemap_ioctl
+pfnmap
+process_madv
+*.tmp*
+protection_keys
+protection_keys_32
+protection_keys_64
+madv_populate
+uffd-stress
+uffd-unit-tests
+uffd-wp-mremap
+mlock-intersect-test
+mlock-random-test
+virtual_address_range
+gup_test
+va_128TBswitch
+map_fixed_noreplace
+write_to_hugetlbfs
+hmm-tests
+memfd_secret
+soft-dirty
+split_huge_page_test
+ksm_tests
+local_config.h
+local_config.mk
+ksm_functional_tests
+mdwe_test
+gup_longterm
+mkdirty
+va_high_addr_switch
+hugetlb_fault_after_madv
+hugetlb_madv_vs_map
+mseal_test
+droppable
+hugetlb_dio
+pkey_sighandler_tests_32
+pkey_sighandler_tests_64
+guard-regions
+merge
+prctl_thp_disable
+rmap
diff --git a/tools/testing/selftests/mm/Makefile b/tools/testing/selftests/mm/Makefile
new file mode 100644
index 000000000000..eaf9312097f7
--- /dev/null
+++ b/tools/testing/selftests/mm/Makefile
@@ -0,0 +1,257 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for mm selftests
+
+LOCAL_HDRS += $(selfdir)/mm/local_config.h $(top_srcdir)/mm/gup_test.h
+LOCAL_HDRS += $(selfdir)/mm/mseal_helpers.h
+
+include local_config.mk
+
+ifeq ($(ARCH),)
+
+ifeq ($(CROSS_COMPILE),)
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+else
+uname_M := $(shell echo $(CROSS_COMPILE) | grep -o '^[a-z0-9]\+')
+endif
+ARCH ?= $(shell echo $(uname_M) | sed -e 's/aarch64.*/arm64/' -e 's/ppc64.*/powerpc/')
+endif
+
+# Without this, failed build products remain, with up-to-date timestamps,
+# thus tricking Make (and you!) into believing that All Is Well, in subsequent
+# make invocations:
+.DELETE_ON_ERROR:
+
+# Avoid accidental wrong builds, due to built-in rules working just a little
+# bit too well--but not quite as well as required for our situation here.
+#
+# In other words, "make $SOME_TEST" is supposed to fail to build at all,
+# because this Makefile only supports either "make" (all), or "make /full/path".
+# However,  the built-in rules, if not suppressed, will pick up CFLAGS and the
+# initial LDLIBS (but not the target-specific LDLIBS, because those are only
+# set for the full path target!). This causes it to get pretty far into building
+# things despite using incorrect values such as an *occasionally* incomplete
+# LDLIBS.
+MAKEFLAGS += --no-builtin-rules
+
+CFLAGS = -Wall -O2 -I $(top_srcdir) $(EXTRA_CFLAGS) $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
+CFLAGS += -Wunreachable-code
+LDLIBS = -lrt -lpthread -lm
+
+# Some distributions (such as Ubuntu) configure GCC so that _FORTIFY_SOURCE is
+# automatically enabled at -O1 or above. This triggers various unused-result
+# warnings where functions such as read() or write() are called and their
+# return value is not checked. Disable _FORTIFY_SOURCE to silence those
+# warnings.
+CFLAGS += -U_FORTIFY_SOURCE
+
+KDIR ?= /lib/modules/$(shell uname -r)/build
+ifneq (,$(wildcard $(KDIR)/Module.symvers))
+ifneq (,$(wildcard $(KDIR)/include/linux/page_frag_cache.h))
+TEST_GEN_MODS_DIR := page_frag
+else
+PAGE_FRAG_WARNING = "missing page_frag_cache.h, please use a newer kernel"
+endif
+else
+PAGE_FRAG_WARNING = "missing Module.symvers, please have the kernel built first"
+endif
+
+TEST_GEN_FILES = cow
+TEST_GEN_FILES += compaction_test
+TEST_GEN_FILES += gup_longterm
+TEST_GEN_FILES += gup_test
+TEST_GEN_FILES += hmm-tests
+TEST_GEN_FILES += hugetlb-madvise
+TEST_GEN_FILES += hugetlb-read-hwpoison
+TEST_GEN_FILES += hugetlb-soft-offline
+TEST_GEN_FILES += hugepage-mmap
+TEST_GEN_FILES += hugepage-mremap
+TEST_GEN_FILES += hugepage-shm
+TEST_GEN_FILES += hugepage-vmemmap
+TEST_GEN_FILES += khugepaged
+TEST_GEN_FILES += madv_populate
+TEST_GEN_FILES += map_fixed_noreplace
+TEST_GEN_FILES += map_hugetlb
+TEST_GEN_FILES += map_populate
+ifneq (,$(filter $(ARCH),arm64 riscv riscv64 x86 x86_64))
+TEST_GEN_FILES += memfd_secret
+endif
+TEST_GEN_FILES += migration
+TEST_GEN_FILES += mkdirty
+TEST_GEN_FILES += mlock-random-test
+TEST_GEN_FILES += mlock2-tests
+TEST_GEN_FILES += mrelease_test
+TEST_GEN_FILES += mremap_dontunmap
+TEST_GEN_FILES += mremap_test
+TEST_GEN_FILES += mseal_test
+TEST_GEN_FILES += on-fault-limit
+TEST_GEN_FILES += pagemap_ioctl
+TEST_GEN_FILES += pfnmap
+TEST_GEN_FILES += process_madv
+TEST_GEN_FILES += prctl_thp_disable
+TEST_GEN_FILES += thuge-gen
+TEST_GEN_FILES += transhuge-stress
+TEST_GEN_FILES += uffd-stress
+TEST_GEN_FILES += uffd-unit-tests
+TEST_GEN_FILES += uffd-wp-mremap
+TEST_GEN_FILES += split_huge_page_test
+TEST_GEN_FILES += ksm_tests
+TEST_GEN_FILES += ksm_functional_tests
+TEST_GEN_FILES += mdwe_test
+TEST_GEN_FILES += hugetlb_fault_after_madv
+TEST_GEN_FILES += hugetlb_madv_vs_map
+TEST_GEN_FILES += hugetlb_dio
+TEST_GEN_FILES += droppable
+TEST_GEN_FILES += guard-regions
+TEST_GEN_FILES += merge
+TEST_GEN_FILES += rmap
+
+ifneq ($(ARCH),arm64)
+TEST_GEN_FILES += soft-dirty
+endif
+
+ifeq ($(ARCH),x86_64)
+CAN_BUILD_I386 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_32bit_program.c -m32)
+CAN_BUILD_X86_64 := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_64bit_program.c)
+CAN_BUILD_WITH_NOPIE := $(shell ./../x86/check_cc.sh "$(CC)" ../x86/trivial_program.c -no-pie)
+
+VMTARGETS := protection_keys
+VMTARGETS += pkey_sighandler_tests
+BINARIES_32 := $(VMTARGETS:%=%_32)
+BINARIES_64 := $(VMTARGETS:%=%_64)
+
+ifeq ($(CAN_BUILD_WITH_NOPIE),1)
+CFLAGS += -no-pie
+endif
+
+ifeq ($(CAN_BUILD_I386),1)
+TEST_GEN_FILES += $(BINARIES_32)
+endif
+
+ifeq ($(CAN_BUILD_X86_64),1)
+TEST_GEN_FILES += $(BINARIES_64)
+endif
+
+else ifeq ($(ARCH),arm64)
+TEST_GEN_FILES += protection_keys
+TEST_GEN_FILES += pkey_sighandler_tests
+else ifeq ($(ARCH),powerpc)
+TEST_GEN_FILES += protection_keys
+endif
+
+ifneq (,$(filter $(ARCH),arm64 mips64 parisc64 powerpc riscv64 s390x sparc64 x86_64 s390))
+TEST_GEN_FILES += va_high_addr_switch
+ifneq ($(ARCH),riscv64)
+TEST_GEN_FILES += virtual_address_range
+endif
+TEST_GEN_FILES += write_to_hugetlbfs
+endif
+
+TEST_PROGS := run_vmtests.sh
+
+TEST_FILES := test_vmalloc.sh
+TEST_FILES += test_hmm.sh
+TEST_FILES += va_high_addr_switch.sh
+TEST_FILES += charge_reserved_hugetlb.sh
+TEST_FILES += hugetlb_reparenting_test.sh
+TEST_FILES += test_page_frag.sh
+
+# required by charge_reserved_hugetlb.sh
+TEST_FILES += write_hugetlb_memory.sh
+
+include ../lib.mk
+
+$(TEST_GEN_PROGS): vm_util.c thp_settings.c
+$(TEST_GEN_FILES): vm_util.c thp_settings.c
+
+$(OUTPUT)/uffd-stress: uffd-common.c
+$(OUTPUT)/uffd-unit-tests: uffd-common.c
+$(OUTPUT)/uffd-wp-mremap: uffd-common.c
+$(OUTPUT)/protection_keys: pkey_util.c
+$(OUTPUT)/pkey_sighandler_tests: pkey_util.c
+
+ifeq ($(ARCH),x86_64)
+BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
+BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
+
+$(BINARIES_32) $(BINARIES_64): pkey_util.c
+
+define gen-target-rule-32
+$(1) $(1)_32: $(OUTPUT)/$(1)_32
+.PHONY: $(1) $(1)_32
+endef
+
+define gen-target-rule-64
+$(1) $(1)_64: $(OUTPUT)/$(1)_64
+.PHONY: $(1) $(1)_64
+endef
+
+ifeq ($(CAN_BUILD_I386),1)
+$(BINARIES_32): CFLAGS += -m32 -mxsave
+$(BINARIES_32): LDLIBS += -lrt -ldl -lm
+$(BINARIES_32): $(OUTPUT)/%_32: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
+$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-32,$(t))))
+endif
+
+ifeq ($(CAN_BUILD_X86_64),1)
+$(BINARIES_64): CFLAGS += -m64 -mxsave
+$(BINARIES_64): LDLIBS += -lrt -ldl
+$(BINARIES_64): $(OUTPUT)/%_64: %.c
+	$(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(notdir $^) $(LDLIBS) -o $@
+$(foreach t,$(VMTARGETS),$(eval $(call gen-target-rule-64,$(t))))
+endif
+
+# x86_64 users should be encouraged to install 32-bit libraries
+ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
+all: warn_32bit_failure
+
+warn_32bit_failure:
+	@echo "Warning: you seem to have a broken 32-bit build" 2>&1;		\
+	echo  "environment. This will reduce test coverage of 64-bit" 2>&1;	\
+	echo  "kernels. If you are using a Debian-like distribution," 2>&1;	\
+	echo  "try:"; 2>&1;							\
+	echo  "";								\
+	echo  "  apt-get install gcc-multilib libc6-i386 libc6-dev-i386";	\
+	echo  "";								\
+	echo  "If you are using a Fedora-like distribution, try:";		\
+	echo  "";								\
+	echo  "  yum install glibc-devel.*i686";				\
+	exit 0;
+endif
+endif
+
+# IOURING_EXTRA_LIBS may get set in local_config.mk, or it may be left empty.
+$(OUTPUT)/cow: LDLIBS += $(IOURING_EXTRA_LIBS)
+
+$(OUTPUT)/gup_longterm: LDLIBS += $(IOURING_EXTRA_LIBS)
+
+$(OUTPUT)/mlock-random-test $(OUTPUT)/memfd_secret: LDLIBS += -lcap
+
+$(OUTPUT)/ksm_tests: LDLIBS += -lnuma
+
+$(OUTPUT)/migration: LDLIBS += -lnuma
+
+$(OUTPUT)/rmap: LDLIBS += -lnuma
+
+local_config.mk local_config.h: check_config.sh
+	/bin/sh ./check_config.sh $(CC)
+
+EXTRA_CLEAN += local_config.mk local_config.h
+
+ifeq ($(IOURING_EXTRA_LIBS),)
+all: warn_missing_liburing
+
+warn_missing_liburing:
+	@echo ; \
+	echo "Warning: missing liburing support. Some tests will be skipped." ; \
+	echo
+endif
+
+ifneq ($(PAGE_FRAG_WARNING),)
+all: warn_missing_page_frag
+
+warn_missing_page_frag:
+	@echo ; \
+	echo "Warning: $(PAGE_FRAG_WARNING). page_frag test will be skipped." ; \
+	echo
+endif
diff --git a/tools/testing/selftests/mm/charge_reserved_hugetlb.sh b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
new file mode 100755
index 000000000000..e1fe16bcbbe8
--- /dev/null
+++ b/tools/testing/selftests/mm/charge_reserved_hugetlb.sh
@@ -0,0 +1,588 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+set -e
+
+if [[ $(id -u) -ne 0 ]]; then
+  echo "This test must be run as root. Skipping..."
+  exit $ksft_skip
+fi
+
+nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+
+fault_limit_file=limit_in_bytes
+reservation_limit_file=rsvd.limit_in_bytes
+fault_usage_file=usage_in_bytes
+reservation_usage_file=rsvd.usage_in_bytes
+
+if [[ "$1" == "-cgroup-v2" ]]; then
+  cgroup2=1
+  fault_limit_file=max
+  reservation_limit_file=rsvd.max
+  fault_usage_file=current
+  reservation_usage_file=rsvd.current
+fi
+
+if [[ $cgroup2 ]]; then
+  cgroup_path=$(mount -t cgroup2 | head -1 | awk '{print $3}')
+  if [[ -z "$cgroup_path" ]]; then
+    cgroup_path=$(mktemp -d)
+    mount -t cgroup2 none $cgroup_path
+    do_umount=1
+  fi
+  echo "+hugetlb" >$cgroup_path/cgroup.subtree_control
+else
+  cgroup_path=$(mount -t cgroup | grep ",hugetlb" | awk '{print $3}')
+  if [[ -z "$cgroup_path" ]]; then
+    cgroup_path=$(mktemp -d)
+    mount -t cgroup memory,hugetlb $cgroup_path
+    do_umount=1
+  fi
+fi
+export cgroup_path
+
+function cleanup() {
+  if [[ $cgroup2 ]]; then
+    echo $$ >$cgroup_path/cgroup.procs
+  else
+    echo $$ >$cgroup_path/tasks
+  fi
+
+  if [[ -e /mnt/huge ]]; then
+    rm -rf /mnt/huge/*
+    umount /mnt/huge || echo error
+    rmdir /mnt/huge
+  fi
+  if [[ -e $cgroup_path/hugetlb_cgroup_test ]]; then
+    rmdir $cgroup_path/hugetlb_cgroup_test
+  fi
+  if [[ -e $cgroup_path/hugetlb_cgroup_test1 ]]; then
+    rmdir $cgroup_path/hugetlb_cgroup_test1
+  fi
+  if [[ -e $cgroup_path/hugetlb_cgroup_test2 ]]; then
+    rmdir $cgroup_path/hugetlb_cgroup_test2
+  fi
+  echo 0 >/proc/sys/vm/nr_hugepages
+  echo CLEANUP DONE
+}
+
+function expect_equal() {
+  local expected="$1"
+  local actual="$2"
+  local error="$3"
+
+  if [[ "$expected" != "$actual" ]]; then
+    echo "expected ($expected) != actual ($actual): $3"
+    cleanup
+    exit 1
+  fi
+}
+
+function get_machine_hugepage_size() {
+  hpz=$(grep -i hugepagesize /proc/meminfo)
+  kb=${hpz:14:-3}
+  mb=$(($kb / 1024))
+  echo $mb
+}
+
+MB=$(get_machine_hugepage_size)
+
+function setup_cgroup() {
+  local name="$1"
+  local cgroup_limit="$2"
+  local reservation_limit="$3"
+
+  mkdir $cgroup_path/$name
+
+  echo writing cgroup limit: "$cgroup_limit"
+  echo "$cgroup_limit" >$cgroup_path/$name/hugetlb.${MB}MB.$fault_limit_file
+
+  echo writing reseravation limit: "$reservation_limit"
+  echo "$reservation_limit" > \
+    $cgroup_path/$name/hugetlb.${MB}MB.$reservation_limit_file
+
+  if [ -e "$cgroup_path/$name/cpuset.cpus" ]; then
+    echo 0 >$cgroup_path/$name/cpuset.cpus
+  fi
+  if [ -e "$cgroup_path/$name/cpuset.mems" ]; then
+    echo 0 >$cgroup_path/$name/cpuset.mems
+  fi
+}
+
+function wait_for_hugetlb_memory_to_get_depleted() {
+  local cgroup="$1"
+  local path="$cgroup_path/$cgroup/hugetlb.${MB}MB.$reservation_usage_file"
+  # Wait for hugetlbfs memory to get depleted.
+  while [ $(cat $path) != 0 ]; do
+    echo Waiting for hugetlb memory to get depleted.
+    cat $path
+    sleep 0.5
+  done
+}
+
+function wait_for_hugetlb_memory_to_get_reserved() {
+  local cgroup="$1"
+  local size="$2"
+
+  local path="$cgroup_path/$cgroup/hugetlb.${MB}MB.$reservation_usage_file"
+  # Wait for hugetlbfs memory to get written.
+  while [ $(cat $path) != $size ]; do
+    echo Waiting for hugetlb memory reservation to reach size $size.
+    cat $path
+    sleep 0.5
+  done
+}
+
+function wait_for_hugetlb_memory_to_get_written() {
+  local cgroup="$1"
+  local size="$2"
+
+  local path="$cgroup_path/$cgroup/hugetlb.${MB}MB.$fault_usage_file"
+  # Wait for hugetlbfs memory to get written.
+  while [ $(cat $path) != $size ]; do
+    echo Waiting for hugetlb memory to reach size $size.
+    cat $path
+    sleep 0.5
+  done
+}
+
+function write_hugetlbfs_and_get_usage() {
+  local cgroup="$1"
+  local size="$2"
+  local populate="$3"
+  local write="$4"
+  local path="$5"
+  local method="$6"
+  local private="$7"
+  local expect_failure="$8"
+  local reserve="$9"
+
+  # Function return values.
+  reservation_failed=0
+  oom_killed=0
+  hugetlb_difference=0
+  reserved_difference=0
+
+  local hugetlb_usage=$cgroup_path/$cgroup/hugetlb.${MB}MB.$fault_usage_file
+  local reserved_usage=$cgroup_path/$cgroup/hugetlb.${MB}MB.$reservation_usage_file
+
+  local hugetlb_before=$(cat $hugetlb_usage)
+  local reserved_before=$(cat $reserved_usage)
+
+  echo
+  echo Starting:
+  echo hugetlb_usage="$hugetlb_before"
+  echo reserved_usage="$reserved_before"
+  echo expect_failure is "$expect_failure"
+
+  output=$(mktemp)
+  set +e
+  if [[ "$method" == "1" ]] || [[ "$method" == 2 ]] ||
+    [[ "$private" == "-r" ]] && [[ "$expect_failure" != 1 ]]; then
+
+    bash write_hugetlb_memory.sh "$size" "$populate" "$write" \
+      "$cgroup" "$path" "$method" "$private" "-l" "$reserve" 2>&1 | tee $output &
+
+    local write_result=$?
+    local write_pid=$!
+
+    until grep -q -i "DONE" $output; do
+      echo waiting for DONE signal.
+      if ! ps $write_pid > /dev/null
+      then
+        echo "FAIL: The write died"
+        cleanup
+        exit 1
+      fi
+      sleep 0.5
+    done
+
+    echo ================= write_hugetlb_memory.sh output is:
+    cat $output
+    echo ================= end output.
+
+    if [[ "$populate" == "-o" ]] || [[ "$write" == "-w" ]]; then
+      wait_for_hugetlb_memory_to_get_written "$cgroup" "$size"
+    elif [[ "$reserve" != "-n" ]]; then
+      wait_for_hugetlb_memory_to_get_reserved "$cgroup" "$size"
+    else
+      # This case doesn't produce visible effects, but we still have
+      # to wait for the async process to start and execute...
+      sleep 0.5
+    fi
+
+    echo write_result is $write_result
+  else
+    bash write_hugetlb_memory.sh "$size" "$populate" "$write" \
+      "$cgroup" "$path" "$method" "$private" "$reserve"
+    local write_result=$?
+
+    if [[ "$reserve" != "-n" ]]; then
+      wait_for_hugetlb_memory_to_get_reserved "$cgroup" "$size"
+    fi
+  fi
+  set -e
+
+  if [[ "$write_result" == 1 ]]; then
+    reservation_failed=1
+  fi
+
+  # On linus/master, the above process gets SIGBUS'd on oomkill, with
+  # return code 135. On earlier kernels, it gets actual oomkill, with return
+  # code 137, so just check for both conditions in case we're testing
+  # against an earlier kernel.
+  if [[ "$write_result" == 135 ]] || [[ "$write_result" == 137 ]]; then
+    oom_killed=1
+  fi
+
+  local hugetlb_after=$(cat $hugetlb_usage)
+  local reserved_after=$(cat $reserved_usage)
+
+  echo After write:
+  echo hugetlb_usage="$hugetlb_after"
+  echo reserved_usage="$reserved_after"
+
+  hugetlb_difference=$(($hugetlb_after - $hugetlb_before))
+  reserved_difference=$(($reserved_after - $reserved_before))
+}
+
+function cleanup_hugetlb_memory() {
+  set +e
+  local cgroup="$1"
+  if [[ "$(pgrep -f write_to_hugetlbfs)" != "" ]]; then
+    echo killing write_to_hugetlbfs
+    killall -2 --wait write_to_hugetlbfs
+    wait_for_hugetlb_memory_to_get_depleted $cgroup
+  fi
+  set -e
+
+  if [[ -e /mnt/huge ]]; then
+    rm -rf /mnt/huge/*
+    umount /mnt/huge
+    rmdir /mnt/huge
+  fi
+}
+
+function run_test() {
+  local size=$(($1 * ${MB} * 1024 * 1024))
+  local populate="$2"
+  local write="$3"
+  local cgroup_limit=$(($4 * ${MB} * 1024 * 1024))
+  local reservation_limit=$(($5 * ${MB} * 1024 * 1024))
+  local nr_hugepages="$6"
+  local method="$7"
+  local private="$8"
+  local expect_failure="$9"
+  local reserve="${10}"
+
+  # Function return values.
+  hugetlb_difference=0
+  reserved_difference=0
+  reservation_failed=0
+  oom_killed=0
+
+  echo nr hugepages = "$nr_hugepages"
+  echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
+
+  setup_cgroup "hugetlb_cgroup_test" "$cgroup_limit" "$reservation_limit"
+
+  mkdir -p /mnt/huge
+  mount -t hugetlbfs -o pagesize=${MB}M,size=256M none /mnt/huge
+
+  write_hugetlbfs_and_get_usage "hugetlb_cgroup_test" "$size" "$populate" \
+    "$write" "/mnt/huge/test" "$method" "$private" "$expect_failure" \
+    "$reserve"
+
+  cleanup_hugetlb_memory "hugetlb_cgroup_test"
+
+  local final_hugetlb=$(cat $cgroup_path/hugetlb_cgroup_test/hugetlb.${MB}MB.$fault_usage_file)
+  local final_reservation=$(cat $cgroup_path/hugetlb_cgroup_test/hugetlb.${MB}MB.$reservation_usage_file)
+
+  echo $hugetlb_difference
+  echo $reserved_difference
+  expect_equal "0" "$final_hugetlb" "final hugetlb is not zero"
+  expect_equal "0" "$final_reservation" "final reservation is not zero"
+}
+
+function run_multiple_cgroup_test() {
+  local size1="$1"
+  local populate1="$2"
+  local write1="$3"
+  local cgroup_limit1="$4"
+  local reservation_limit1="$5"
+
+  local size2="$6"
+  local populate2="$7"
+  local write2="$8"
+  local cgroup_limit2="$9"
+  local reservation_limit2="${10}"
+
+  local nr_hugepages="${11}"
+  local method="${12}"
+  local private="${13}"
+  local expect_failure="${14}"
+  local reserve="${15}"
+
+  # Function return values.
+  hugetlb_difference1=0
+  reserved_difference1=0
+  reservation_failed1=0
+  oom_killed1=0
+
+  hugetlb_difference2=0
+  reserved_difference2=0
+  reservation_failed2=0
+  oom_killed2=0
+
+  echo nr hugepages = "$nr_hugepages"
+  echo "$nr_hugepages" >/proc/sys/vm/nr_hugepages
+
+  setup_cgroup "hugetlb_cgroup_test1" "$cgroup_limit1" "$reservation_limit1"
+  setup_cgroup "hugetlb_cgroup_test2" "$cgroup_limit2" "$reservation_limit2"
+
+  mkdir -p /mnt/huge
+  mount -t hugetlbfs -o pagesize=${MB}M,size=256M none /mnt/huge
+
+  write_hugetlbfs_and_get_usage "hugetlb_cgroup_test1" "$size1" \
+    "$populate1" "$write1" "/mnt/huge/test1" "$method" "$private" \
+    "$expect_failure" "$reserve"
+
+  hugetlb_difference1=$hugetlb_difference
+  reserved_difference1=$reserved_difference
+  reservation_failed1=$reservation_failed
+  oom_killed1=$oom_killed
+
+  local cgroup1_hugetlb_usage=$cgroup_path/hugetlb_cgroup_test1/hugetlb.${MB}MB.$fault_usage_file
+  local cgroup1_reservation_usage=$cgroup_path/hugetlb_cgroup_test1/hugetlb.${MB}MB.$reservation_usage_file
+  local cgroup2_hugetlb_usage=$cgroup_path/hugetlb_cgroup_test2/hugetlb.${MB}MB.$fault_usage_file
+  local cgroup2_reservation_usage=$cgroup_path/hugetlb_cgroup_test2/hugetlb.${MB}MB.$reservation_usage_file
+
+  local usage_before_second_write=$(cat $cgroup1_hugetlb_usage)
+  local reservation_usage_before_second_write=$(cat $cgroup1_reservation_usage)
+
+  write_hugetlbfs_and_get_usage "hugetlb_cgroup_test2" "$size2" \
+    "$populate2" "$write2" "/mnt/huge/test2" "$method" "$private" \
+    "$expect_failure" "$reserve"
+
+  hugetlb_difference2=$hugetlb_difference
+  reserved_difference2=$reserved_difference
+  reservation_failed2=$reservation_failed
+  oom_killed2=$oom_killed
+
+  expect_equal "$usage_before_second_write" \
+    "$(cat $cgroup1_hugetlb_usage)" "Usage changed."
+  expect_equal "$reservation_usage_before_second_write" \
+    "$(cat $cgroup1_reservation_usage)" "Reservation usage changed."
+
+  cleanup_hugetlb_memory
+
+  local final_hugetlb=$(cat $cgroup1_hugetlb_usage)
+  local final_reservation=$(cat $cgroup1_reservation_usage)
+
+  expect_equal "0" "$final_hugetlb" \
+    "hugetlbt_cgroup_test1 final hugetlb is not zero"
+  expect_equal "0" "$final_reservation" \
+    "hugetlbt_cgroup_test1 final reservation is not zero"
+
+  local final_hugetlb=$(cat $cgroup2_hugetlb_usage)
+  local final_reservation=$(cat $cgroup2_reservation_usage)
+
+  expect_equal "0" "$final_hugetlb" \
+    "hugetlb_cgroup_test2 final hugetlb is not zero"
+  expect_equal "0" "$final_reservation" \
+    "hugetlb_cgroup_test2 final reservation is not zero"
+}
+
+cleanup
+
+for populate in "" "-o"; do
+  for method in 0 1 2; do
+    for private in "" "-r"; do
+      for reserve in "" "-n"; do
+
+        # Skip mmap(MAP_HUGETLB | MAP_SHARED). Doesn't seem to be supported.
+        if [[ "$method" == 1 ]] && [[ "$private" == "" ]]; then
+          continue
+        fi
+
+        # Skip populated shmem tests. Doesn't seem to be supported.
+        if [[ "$method" == 2"" ]] && [[ "$populate" == "-o" ]]; then
+          continue
+        fi
+
+        if [[ "$method" == 2"" ]] && [[ "$reserve" == "-n" ]]; then
+          continue
+        fi
+
+        cleanup
+        echo
+        echo
+        echo
+        echo Test normal case.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+        run_test 5 "$populate" "" 10 10 10 "$method" "$private" "0" "$reserve"
+
+        echo Memory charged to hugtlb=$hugetlb_difference
+        echo Memory charged to reservation=$reserved_difference
+
+        if [[ "$populate" == "-o" ]]; then
+          expect_equal "$((5 * $MB * 1024 * 1024))" "$hugetlb_difference" \
+            "Reserved memory charged to hugetlb cgroup."
+        else
+          expect_equal "0" "$hugetlb_difference" \
+            "Reserved memory charged to hugetlb cgroup."
+        fi
+
+        if [[ "$reserve" != "-n" ]] || [[ "$populate" == "-o" ]]; then
+          expect_equal "$((5 * $MB * 1024 * 1024))" "$reserved_difference" \
+            "Reserved memory not charged to reservation usage."
+        else
+          expect_equal "0" "$reserved_difference" \
+            "Reserved memory not charged to reservation usage."
+        fi
+
+        echo 'PASS'
+
+        cleanup
+        echo
+        echo
+        echo
+        echo Test normal case with write.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+        run_test 5 "$populate" '-w' 5 5 10 "$method" "$private" "0" "$reserve"
+
+        echo Memory charged to hugtlb=$hugetlb_difference
+        echo Memory charged to reservation=$reserved_difference
+
+        expect_equal "$((5 * $MB * 1024 * 1024))" "$hugetlb_difference" \
+          "Reserved memory charged to hugetlb cgroup."
+
+        expect_equal "$((5 * $MB * 1024 * 1024))" "$reserved_difference" \
+          "Reserved memory not charged to reservation usage."
+
+        echo 'PASS'
+
+        cleanup
+        continue
+        echo
+        echo
+        echo
+        echo Test more than reservation case.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+
+        if [ "$reserve" != "-n" ]; then
+          run_test "5" "$populate" '' "10" "2" "10" "$method" "$private" "1" \
+            "$reserve"
+
+          expect_equal "1" "$reservation_failed" "Reservation succeeded."
+        fi
+
+        echo 'PASS'
+
+        cleanup
+
+        echo
+        echo
+        echo
+        echo Test more than cgroup limit case.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+
+        # Not sure if shm memory can be cleaned up when the process gets sigbus'd.
+        if [[ "$method" != 2 ]]; then
+          run_test 5 "$populate" "-w" 2 10 10 "$method" "$private" "1" "$reserve"
+
+          expect_equal "1" "$oom_killed" "Not oom killed."
+        fi
+        echo 'PASS'
+
+        cleanup
+
+        echo
+        echo
+        echo
+        echo Test normal case, multiple cgroups.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+        run_multiple_cgroup_test "3" "$populate" "" "10" "10" "5" \
+          "$populate" "" "10" "10" "10" \
+          "$method" "$private" "0" "$reserve"
+
+        echo Memory charged to hugtlb1=$hugetlb_difference1
+        echo Memory charged to reservation1=$reserved_difference1
+        echo Memory charged to hugtlb2=$hugetlb_difference2
+        echo Memory charged to reservation2=$reserved_difference2
+
+        if [[ "$reserve" != "-n" ]] || [[ "$populate" == "-o" ]]; then
+          expect_equal "3" "$reserved_difference1" \
+            "Incorrect reservations charged to cgroup 1."
+
+          expect_equal "5" "$reserved_difference2" \
+            "Incorrect reservation charged to cgroup 2."
+
+        else
+          expect_equal "0" "$reserved_difference1" \
+            "Incorrect reservations charged to cgroup 1."
+
+          expect_equal "0" "$reserved_difference2" \
+            "Incorrect reservation charged to cgroup 2."
+        fi
+
+        if [[ "$populate" == "-o" ]]; then
+          expect_equal "3" "$hugetlb_difference1" \
+            "Incorrect hugetlb charged to cgroup 1."
+
+          expect_equal "5" "$hugetlb_difference2" \
+            "Incorrect hugetlb charged to cgroup 2."
+
+        else
+          expect_equal "0" "$hugetlb_difference1" \
+            "Incorrect hugetlb charged to cgroup 1."
+
+          expect_equal "0" "$hugetlb_difference2" \
+            "Incorrect hugetlb charged to cgroup 2."
+        fi
+        echo 'PASS'
+
+        cleanup
+        echo
+        echo
+        echo
+        echo Test normal case with write, multiple cgroups.
+        echo private=$private, populate=$populate, method=$method, reserve=$reserve
+        run_multiple_cgroup_test "3" "$populate" "-w" "10" "10" "5" \
+          "$populate" "-w" "10" "10" "10" \
+          "$method" "$private" "0" "$reserve"
+
+        echo Memory charged to hugtlb1=$hugetlb_difference1
+        echo Memory charged to reservation1=$reserved_difference1
+        echo Memory charged to hugtlb2=$hugetlb_difference2
+        echo Memory charged to reservation2=$reserved_difference2
+
+        expect_equal "3" "$hugetlb_difference1" \
+          "Incorrect hugetlb charged to cgroup 1."
+
+        expect_equal "3" "$reserved_difference1" \
+          "Incorrect reservation charged to cgroup 1."
+
+        expect_equal "5" "$hugetlb_difference2" \
+          "Incorrect hugetlb charged to cgroup 2."
+
+        expect_equal "5" "$reserved_difference2" \
+          "Incorrected reservation charged to cgroup 2."
+        echo 'PASS'
+
+        cleanup
+
+      done # reserve
+    done   # private
+  done     # populate
+done       # method
+
+if [[ $do_umount ]]; then
+  umount $cgroup_path
+  rmdir $cgroup_path
+fi
+
+echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
diff --git a/tools/testing/selftests/mm/check_config.sh b/tools/testing/selftests/mm/check_config.sh
new file mode 100755
index 000000000000..3954f4746161
--- /dev/null
+++ b/tools/testing/selftests/mm/check_config.sh
@@ -0,0 +1,31 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Probe for libraries and create header files to record the results. Both C
+# header files and Makefile include fragments are created.
+
+OUTPUT_H_FILE=local_config.h
+OUTPUT_MKFILE=local_config.mk
+
+tmpname=$(mktemp)
+tmpfile_c=${tmpname}.c
+tmpfile_o=${tmpname}.o
+
+# liburing
+echo "#include <sys/types.h>"        > $tmpfile_c
+echo "#include <liburing.h>"        >> $tmpfile_c
+echo "int func(void) { return 0; }" >> $tmpfile_c
+
+CC=${1:?"Usage: $0 <compiler> # example compiler: gcc"}
+$CC -c $tmpfile_c -o $tmpfile_o >/dev/null 2>&1
+
+if [ -f $tmpfile_o ]; then
+    echo "#define LOCAL_CONFIG_HAVE_LIBURING 1"  > $OUTPUT_H_FILE
+    echo "IOURING_EXTRA_LIBS = -luring"          > $OUTPUT_MKFILE
+else
+    echo "// No liburing support found"          > $OUTPUT_H_FILE
+    echo "# No liburing support found, so:"      > $OUTPUT_MKFILE
+    echo "IOURING_EXTRA_LIBS = "                >> $OUTPUT_MKFILE
+fi
+
+rm ${tmpname}.*
diff --git a/tools/testing/selftests/mm/compaction_test.c b/tools/testing/selftests/mm/compaction_test.c
new file mode 100644
index 000000000000..30209c40b697
--- /dev/null
+++ b/tools/testing/selftests/mm/compaction_test.c
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ *
+ * A test for the patch "Allow compaction of unevictable pages".
+ * With this patch we should be able to allocate at least 1/4
+ * of RAM in huge pages. Without the patch much less is
+ * allocated.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "kselftest.h"
+
+#define MAP_SIZE_MB	100
+#define MAP_SIZE	(MAP_SIZE_MB * 1024 * 1024)
+
+struct map_list {
+	void *map;
+	struct map_list *next;
+};
+
+int read_memory_info(unsigned long *memfree, unsigned long *hugepagesize)
+{
+	char  buffer[256] = {0};
+	char *cmd = "cat /proc/meminfo | grep -i memfree | grep -o '[0-9]*'";
+	FILE *cmdfile = popen(cmd, "r");
+
+	if (!(fgets(buffer, sizeof(buffer), cmdfile))) {
+		ksft_print_msg("Failed to read meminfo: %s\n", strerror(errno));
+		return -1;
+	}
+
+	pclose(cmdfile);
+
+	*memfree = atoll(buffer);
+	cmd = "cat /proc/meminfo | grep -i hugepagesize | grep -o '[0-9]*'";
+	cmdfile = popen(cmd, "r");
+
+	if (!(fgets(buffer, sizeof(buffer), cmdfile))) {
+		ksft_print_msg("Failed to read meminfo: %s\n", strerror(errno));
+		return -1;
+	}
+
+	pclose(cmdfile);
+	*hugepagesize = atoll(buffer);
+
+	return 0;
+}
+
+int prereq(void)
+{
+	char allowed;
+	int fd;
+
+	fd = open("/proc/sys/vm/compact_unevictable_allowed",
+		  O_RDONLY | O_NONBLOCK);
+	if (fd < 0) {
+		ksft_print_msg("Failed to open /proc/sys/vm/compact_unevictable_allowed: %s\n",
+			       strerror(errno));
+		return -1;
+	}
+
+	if (read(fd, &allowed, sizeof(char)) != sizeof(char)) {
+		ksft_print_msg("Failed to read from /proc/sys/vm/compact_unevictable_allowed: %s\n",
+			       strerror(errno));
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+	if (allowed == '1')
+		return 0;
+
+	ksft_print_msg("Compaction isn't allowed\n");
+	return -1;
+}
+
+int check_compaction(unsigned long mem_free, unsigned long hugepage_size,
+		     unsigned long initial_nr_hugepages)
+{
+	unsigned long nr_hugepages_ul;
+	int fd, ret = -1;
+	int compaction_index = 0;
+	char nr_hugepages[20] = {0};
+	char init_nr_hugepages[24] = {0};
+	char target_nr_hugepages[24] = {0};
+	int slen;
+
+	snprintf(init_nr_hugepages, sizeof(init_nr_hugepages),
+		 "%lu", initial_nr_hugepages);
+
+	/* We want to test with 80% of available memory. Else, OOM killer comes
+	   in to play */
+	mem_free = mem_free * 0.8;
+
+	fd = open("/proc/sys/vm/nr_hugepages", O_RDWR | O_NONBLOCK);
+	if (fd < 0) {
+		ksft_print_msg("Failed to open /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		ret = -1;
+		goto out;
+	}
+
+	/*
+	 * Request huge pages for about half of the free memory. The Kernel
+	 * will allocate as much as it can, and we expect it will get at least 1/3
+	 */
+	nr_hugepages_ul = mem_free / hugepage_size / 2;
+	snprintf(target_nr_hugepages, sizeof(target_nr_hugepages),
+		 "%lu", nr_hugepages_ul);
+
+	slen = strlen(target_nr_hugepages);
+	if (write(fd, target_nr_hugepages, slen) != slen) {
+		ksft_print_msg("Failed to write %lu to /proc/sys/vm/nr_hugepages: %s\n",
+			       nr_hugepages_ul, strerror(errno));
+		goto close_fd;
+	}
+
+	lseek(fd, 0, SEEK_SET);
+
+	if (read(fd, nr_hugepages, sizeof(nr_hugepages)) <= 0) {
+		ksft_print_msg("Failed to re-read from /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		goto close_fd;
+	}
+
+	/* We should have been able to request at least 1/3 rd of the memory in
+	   huge pages */
+	nr_hugepages_ul = strtoul(nr_hugepages, NULL, 10);
+	if (!nr_hugepages_ul) {
+		ksft_print_msg("ERROR: No memory is available as huge pages\n");
+		goto close_fd;
+	}
+	compaction_index = mem_free/(nr_hugepages_ul * hugepage_size);
+
+	lseek(fd, 0, SEEK_SET);
+
+	if (write(fd, init_nr_hugepages, strlen(init_nr_hugepages))
+	    != strlen(init_nr_hugepages)) {
+		ksft_print_msg("Failed to write value to /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		goto close_fd;
+	}
+
+	ksft_print_msg("Number of huge pages allocated = %lu\n",
+		       nr_hugepages_ul);
+
+	if (compaction_index > 3) {
+		ksft_print_msg("ERROR: Less than 1/%d of memory is available\n"
+			       "as huge pages\n", compaction_index);
+		goto close_fd;
+	}
+
+	ret = 0;
+
+ close_fd:
+	close(fd);
+ out:
+	ksft_test_result(ret == 0, "check_compaction\n");
+	return ret;
+}
+
+int set_zero_hugepages(unsigned long *initial_nr_hugepages)
+{
+	int fd, ret = -1;
+	char nr_hugepages[20] = {0};
+
+	fd = open("/proc/sys/vm/nr_hugepages", O_RDWR | O_NONBLOCK);
+	if (fd < 0) {
+		ksft_print_msg("Failed to open /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		goto out;
+	}
+	if (read(fd, nr_hugepages, sizeof(nr_hugepages)) <= 0) {
+		ksft_print_msg("Failed to read from /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		goto close_fd;
+	}
+
+	lseek(fd, 0, SEEK_SET);
+
+	/* Start with the initial condition of 0 huge pages */
+	if (write(fd, "0", sizeof(char)) != sizeof(char)) {
+		ksft_print_msg("Failed to write 0 to /proc/sys/vm/nr_hugepages: %s\n",
+			       strerror(errno));
+		goto close_fd;
+	}
+
+	*initial_nr_hugepages = strtoul(nr_hugepages, NULL, 10);
+	ret = 0;
+
+ close_fd:
+	close(fd);
+
+ out:
+	return ret;
+}
+
+int main(int argc, char **argv)
+{
+	struct rlimit lim;
+	struct map_list *list = NULL, *entry;
+	size_t page_size, i;
+	void *map = NULL;
+	unsigned long mem_free = 0;
+	unsigned long hugepage_size = 0;
+	long mem_fragmentable_MB = 0;
+	unsigned long initial_nr_hugepages;
+
+	ksft_print_header();
+
+	if (prereq() || geteuid())
+		ksft_exit_skip("Prerequisites unsatisfied\n");
+
+	ksft_set_plan(1);
+
+	/* Start the test without hugepages reducing mem_free */
+	if (set_zero_hugepages(&initial_nr_hugepages))
+		ksft_exit_fail();
+
+	lim.rlim_cur = RLIM_INFINITY;
+	lim.rlim_max = RLIM_INFINITY;
+	if (setrlimit(RLIMIT_MEMLOCK, &lim))
+		ksft_exit_fail_msg("Failed to set rlimit: %s\n", strerror(errno));
+
+	page_size = getpagesize();
+
+	if (read_memory_info(&mem_free, &hugepage_size) != 0)
+		ksft_exit_fail_msg("Failed to get meminfo\n");
+
+	mem_fragmentable_MB = mem_free * 0.8 / 1024;
+
+	while (mem_fragmentable_MB > 0) {
+		map = mmap(NULL, MAP_SIZE, PROT_READ | PROT_WRITE,
+			   MAP_ANONYMOUS | MAP_PRIVATE | MAP_LOCKED, -1, 0);
+		if (map == MAP_FAILED)
+			break;
+
+		entry = malloc(sizeof(struct map_list));
+		if (!entry) {
+			munmap(map, MAP_SIZE);
+			break;
+		}
+		entry->map = map;
+		entry->next = list;
+		list = entry;
+
+		/* Write something (in this case the address of the map) to
+		 * ensure that KSM can't merge the mapped pages
+		 */
+		for (i = 0; i < MAP_SIZE; i += page_size)
+			*(unsigned long *)(map + i) = (unsigned long)map + i;
+
+		mem_fragmentable_MB -= MAP_SIZE_MB;
+	}
+
+	for (entry = list; entry != NULL; entry = entry->next) {
+		munmap(entry->map, MAP_SIZE);
+		if (!entry->next)
+			break;
+		entry = entry->next;
+	}
+
+	if (check_compaction(mem_free, hugepage_size,
+			     initial_nr_hugepages) == 0)
+		ksft_exit_pass();
+
+	ksft_exit_fail();
+}
diff --git a/tools/testing/selftests/mm/config b/tools/testing/selftests/mm/config
new file mode 100644
index 000000000000..deba93379c80
--- /dev/null
+++ b/tools/testing/selftests/mm/config
@@ -0,0 +1,13 @@
+CONFIG_SYSVIPC=y
+CONFIG_USERFAULTFD=y
+CONFIG_PTE_MARKER_UFFD_WP=y
+CONFIG_TEST_VMALLOC=m
+CONFIG_DEVICE_PRIVATE=y
+CONFIG_TEST_HMM=m
+CONFIG_GUP_TEST=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_MEM_SOFT_DIRTY=y
+CONFIG_ANON_VMA_NAME=y
+CONFIG_FTRACE=y
+CONFIG_PROFILING=y
+CONFIG_UPROBES=y
diff --git a/tools/testing/selftests/mm/cow.c b/tools/testing/selftests/mm/cow.c
new file mode 100644
index 000000000000..accfd198dbda
--- /dev/null
+++ b/tools/testing/selftests/mm/cow.c
@@ -0,0 +1,1897 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * COW (Copy On Write) tests.
+ *
+ * Copyright 2022, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <linux/memfd.h>
+
+#include "local_config.h"
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+#include <liburing.h>
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+
+#include "../../../../mm/gup_test.h"
+#include "kselftest.h"
+#include "vm_util.h"
+#include "thp_settings.h"
+
+static size_t pagesize;
+static int pagemap_fd;
+static size_t pmdsize;
+static int nr_thpsizes;
+static size_t thpsizes[20];
+static int nr_hugetlbsizes;
+static size_t hugetlbsizes[10];
+static int gup_fd;
+static bool has_huge_zeropage;
+
+static int detect_thp_sizes(size_t sizes[], int max)
+{
+	int count = 0;
+	unsigned long orders;
+	size_t kb;
+	int i;
+
+	/* thp not supported at all. */
+	if (!pmdsize)
+		return 0;
+
+	orders = 1UL << sz2ord(pmdsize, pagesize);
+	orders |= thp_supported_orders();
+
+	for (i = 0; orders && count < max; i++) {
+		if (!(orders & (1UL << i)))
+			continue;
+		orders &= ~(1UL << i);
+		kb = (pagesize >> 10) << i;
+		sizes[count++] = kb * 1024;
+		ksft_print_msg("[INFO] detected THP size: %zu KiB\n", kb);
+	}
+
+	return count;
+}
+
+static bool range_is_swapped(void *addr, size_t size)
+{
+	for (; size; addr += pagesize, size -= pagesize)
+		if (!pagemap_is_swapped(pagemap_fd, addr))
+			return false;
+	return true;
+}
+
+struct comm_pipes {
+	int child_ready[2];
+	int parent_ready[2];
+};
+
+static int setup_comm_pipes(struct comm_pipes *comm_pipes)
+{
+	if (pipe(comm_pipes->child_ready) < 0) {
+		ksft_perror("pipe() failed");
+		return -errno;
+	}
+	if (pipe(comm_pipes->parent_ready) < 0) {
+		ksft_perror("pipe() failed");
+		close(comm_pipes->child_ready[0]);
+		close(comm_pipes->child_ready[1]);
+		return -errno;
+	}
+
+	return 0;
+}
+
+static void close_comm_pipes(struct comm_pipes *comm_pipes)
+{
+	close(comm_pipes->child_ready[0]);
+	close(comm_pipes->child_ready[1]);
+	close(comm_pipes->parent_ready[0]);
+	close(comm_pipes->parent_ready[1]);
+}
+
+static int child_memcmp_fn(char *mem, size_t size,
+			   struct comm_pipes *comm_pipes)
+{
+	char *old = malloc(size);
+	char buf;
+
+	/* Backup the original content. */
+	memcpy(old, mem, size);
+
+	/* Wait until the parent modified the page. */
+	write(comm_pipes->child_ready[1], "0", 1);
+	while (read(comm_pipes->parent_ready[0], &buf, 1) != 1)
+		;
+
+	/* See if we still read the old values. */
+	return memcmp(old, mem, size);
+}
+
+static int child_vmsplice_memcmp_fn(char *mem, size_t size,
+				    struct comm_pipes *comm_pipes)
+{
+	struct iovec iov = {
+		.iov_base = mem,
+		.iov_len = size,
+	};
+	ssize_t cur, total, transferred;
+	char *old, *new;
+	int fds[2];
+	char buf;
+
+	old = malloc(size);
+	new = malloc(size);
+
+	/* Backup the original content. */
+	memcpy(old, mem, size);
+
+	if (pipe(fds) < 0)
+		return -errno;
+
+	/* Trigger a read-only pin. */
+	transferred = vmsplice(fds[1], &iov, 1, 0);
+	if (transferred < 0)
+		return -errno;
+	if (transferred == 0)
+		return -EINVAL;
+
+	/* Unmap it from our page tables. */
+	if (munmap(mem, size) < 0)
+		return -errno;
+
+	/* Wait until the parent modified it. */
+	write(comm_pipes->child_ready[1], "0", 1);
+	while (read(comm_pipes->parent_ready[0], &buf, 1) != 1)
+		;
+
+	/* See if we still read the old values via the pipe. */
+	for (total = 0; total < transferred; total += cur) {
+		cur = read(fds[0], new + total, transferred - total);
+		if (cur < 0)
+			return -errno;
+	}
+
+	return memcmp(old, new, transferred);
+}
+
+typedef int (*child_fn)(char *mem, size_t size, struct comm_pipes *comm_pipes);
+
+static void do_test_cow_in_parent(char *mem, size_t size, bool do_mprotect,
+		child_fn fn, bool xfail)
+{
+	struct comm_pipes comm_pipes;
+	char buf;
+	int ret;
+
+	ret = setup_comm_pipes(&comm_pipes);
+	if (ret) {
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	ret = fork();
+	if (ret < 0) {
+		ksft_perror("fork() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	} else if (!ret) {
+		exit(fn(mem, size, &comm_pipes));
+	}
+
+	while (read(comm_pipes.child_ready[0], &buf, 1) != 1)
+		;
+
+	if (do_mprotect) {
+		/*
+		 * mprotect() optimizations might try avoiding
+		 * write-faults by directly mapping pages writable.
+		 */
+		ret = mprotect(mem, size, PROT_READ);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			write(comm_pipes.parent_ready[1], "0", 1);
+			wait(&ret);
+			goto close_comm_pipes;
+		}
+
+		ret = mprotect(mem, size, PROT_READ|PROT_WRITE);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			write(comm_pipes.parent_ready[1], "0", 1);
+			wait(&ret);
+			goto close_comm_pipes;
+		}
+	}
+
+	/* Modify the page. */
+	memset(mem, 0xff, size);
+	write(comm_pipes.parent_ready[1], "0", 1);
+
+	wait(&ret);
+	if (WIFEXITED(ret))
+		ret = WEXITSTATUS(ret);
+	else
+		ret = -EINVAL;
+
+	if (!ret) {
+		log_test_result(KSFT_PASS);
+	} else if (xfail) {
+		/*
+		 * With hugetlb, some vmsplice() tests are currently expected to
+		 * fail because (a) harder to fix and (b) nobody really cares.
+		 * Flag them as expected failure for now.
+		 */
+		ksft_print_msg("Leak from parent into child\n");
+		log_test_result(KSFT_XFAIL);
+	} else {
+		ksft_print_msg("Leak from parent into child\n");
+		log_test_result(KSFT_FAIL);
+	}
+close_comm_pipes:
+	close_comm_pipes(&comm_pipes);
+}
+
+static void test_cow_in_parent(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_cow_in_parent(mem, size, false, child_memcmp_fn, false);
+}
+
+static void test_cow_in_parent_mprotect(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_cow_in_parent(mem, size, true, child_memcmp_fn, false);
+}
+
+static void test_vmsplice_in_child(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_cow_in_parent(mem, size, false, child_vmsplice_memcmp_fn,
+			      is_hugetlb);
+}
+
+static void test_vmsplice_in_child_mprotect(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	do_test_cow_in_parent(mem, size, true, child_vmsplice_memcmp_fn,
+			      is_hugetlb);
+}
+
+static void do_test_vmsplice_in_parent(char *mem, size_t size,
+				       bool before_fork, bool xfail)
+{
+	struct iovec iov = {
+		.iov_base = mem,
+		.iov_len = size,
+	};
+	ssize_t cur, total, transferred = 0;
+	struct comm_pipes comm_pipes;
+	char *old, *new;
+	int ret, fds[2];
+	char buf;
+
+	old = malloc(size);
+	new = malloc(size);
+
+	memcpy(old, mem, size);
+
+	ret = setup_comm_pipes(&comm_pipes);
+	if (ret) {
+		log_test_result(KSFT_FAIL);
+		goto free;
+	}
+
+	if (pipe(fds) < 0) {
+		ksft_perror("pipe() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	}
+
+	if (before_fork) {
+		transferred = vmsplice(fds[1], &iov, 1, 0);
+		if (transferred <= 0) {
+			ksft_perror("vmsplice() failed\n");
+			log_test_result(KSFT_FAIL);
+			goto close_pipe;
+		}
+	}
+
+	ret = fork();
+	if (ret < 0) {
+		ksft_perror("fork() failed\n");
+		log_test_result(KSFT_FAIL);
+		goto close_pipe;
+	} else if (!ret) {
+		write(comm_pipes.child_ready[1], "0", 1);
+		while (read(comm_pipes.parent_ready[0], &buf, 1) != 1)
+			;
+		/* Modify page content in the child. */
+		memset(mem, 0xff, size);
+		exit(0);
+	}
+
+	if (!before_fork) {
+		transferred = vmsplice(fds[1], &iov, 1, 0);
+		if (transferred <= 0) {
+			ksft_perror("vmsplice() failed");
+			log_test_result(KSFT_FAIL);
+			wait(&ret);
+			goto close_pipe;
+		}
+	}
+
+	while (read(comm_pipes.child_ready[0], &buf, 1) != 1)
+		;
+	if (munmap(mem, size) < 0) {
+		ksft_perror("munmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_pipe;
+	}
+	write(comm_pipes.parent_ready[1], "0", 1);
+
+	/* Wait until the child is done writing. */
+	wait(&ret);
+	if (!WIFEXITED(ret)) {
+		ksft_perror("wait() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_pipe;
+	}
+
+	/* See if we still read the old values. */
+	for (total = 0; total < transferred; total += cur) {
+		cur = read(fds[0], new + total, transferred - total);
+		if (cur < 0) {
+			ksft_perror("read() failed");
+			log_test_result(KSFT_FAIL);
+			goto close_pipe;
+		}
+	}
+
+	if (!memcmp(old, new, transferred)) {
+		log_test_result(KSFT_PASS);
+	} else if (xfail) {
+		/*
+		 * With hugetlb, some vmsplice() tests are currently expected to
+		 * fail because (a) harder to fix and (b) nobody really cares.
+		 * Flag them as expected failure for now.
+		 */
+		ksft_print_msg("Leak from child into parent\n");
+		log_test_result(KSFT_XFAIL);
+	} else {
+		ksft_print_msg("Leak from child into parent\n");
+		log_test_result(KSFT_FAIL);
+	}
+close_pipe:
+	close(fds[0]);
+	close(fds[1]);
+close_comm_pipes:
+	close_comm_pipes(&comm_pipes);
+free:
+	free(old);
+	free(new);
+}
+
+static void test_vmsplice_before_fork(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_vmsplice_in_parent(mem, size, true, is_hugetlb);
+}
+
+static void test_vmsplice_after_fork(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_vmsplice_in_parent(mem, size, false, is_hugetlb);
+}
+
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+static void do_test_iouring(char *mem, size_t size, bool use_fork)
+{
+	struct comm_pipes comm_pipes;
+	struct io_uring_cqe *cqe;
+	struct io_uring_sqe *sqe;
+	struct io_uring ring;
+	ssize_t cur, total;
+	struct iovec iov;
+	char *buf, *tmp;
+	int ret, fd;
+	FILE *file;
+
+	ret = setup_comm_pipes(&comm_pipes);
+	if (ret) {
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	file = tmpfile();
+	if (!file) {
+		ksft_perror("tmpfile() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	}
+	fd = fileno(file);
+	assert(fd);
+
+	tmp = malloc(size);
+	if (!tmp) {
+		ksft_print_msg("malloc() failed\n");
+		log_test_result(KSFT_FAIL);
+		goto close_file;
+	}
+
+	/* Skip on errors, as we might just lack kernel support. */
+	ret = io_uring_queue_init(1, &ring, 0);
+	if (ret < 0) {
+		ksft_print_msg("io_uring_queue_init() failed\n");
+		log_test_result(KSFT_SKIP);
+		goto free_tmp;
+	}
+
+	/*
+	 * Register the range as a fixed buffer. This will FOLL_WRITE | FOLL_PIN
+	 * | FOLL_LONGTERM the range.
+	 *
+	 * Skip on errors, as we might just lack kernel support or might not
+	 * have sufficient MEMLOCK permissions.
+	 */
+	iov.iov_base = mem;
+	iov.iov_len = size;
+	ret = io_uring_register_buffers(&ring, &iov, 1);
+	if (ret) {
+		ksft_print_msg("io_uring_register_buffers() failed\n");
+		log_test_result(KSFT_SKIP);
+		goto queue_exit;
+	}
+
+	if (use_fork) {
+		/*
+		 * fork() and keep the child alive until we're done. Note that
+		 * we expect the pinned page to not get shared with the child.
+		 */
+		ret = fork();
+		if (ret < 0) {
+			ksft_perror("fork() failed");
+			log_test_result(KSFT_FAIL);
+			goto unregister_buffers;
+		} else if (!ret) {
+			write(comm_pipes.child_ready[1], "0", 1);
+			while (read(comm_pipes.parent_ready[0], &buf, 1) != 1)
+				;
+			exit(0);
+		}
+
+		while (read(comm_pipes.child_ready[0], &buf, 1) != 1)
+			;
+	} else {
+		/*
+		 * Map the page R/O into the page table. Enable softdirty
+		 * tracking to stop the page from getting mapped R/W immediately
+		 * again by mprotect() optimizations. Note that we don't have an
+		 * easy way to test if that worked (the pagemap does not export
+		 * if the page is mapped R/O vs. R/W).
+		 */
+		ret = mprotect(mem, size, PROT_READ);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			goto unregister_buffers;
+		}
+
+		clear_softdirty();
+		ret = mprotect(mem, size, PROT_READ | PROT_WRITE);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			goto unregister_buffers;
+		}
+	}
+
+	/*
+	 * Modify the page and write page content as observed by the fixed
+	 * buffer pin to the file so we can verify it.
+	 */
+	memset(mem, 0xff, size);
+	sqe = io_uring_get_sqe(&ring);
+	if (!sqe) {
+		ksft_print_msg("io_uring_get_sqe() failed\n");
+		log_test_result(KSFT_FAIL);
+		goto quit_child;
+	}
+	io_uring_prep_write_fixed(sqe, fd, mem, size, 0, 0);
+
+	ret = io_uring_submit(&ring);
+	if (ret < 0) {
+		ksft_print_msg("io_uring_submit() failed\n");
+		log_test_result(KSFT_FAIL);
+		goto quit_child;
+	}
+
+	ret = io_uring_wait_cqe(&ring, &cqe);
+	if (ret < 0) {
+		ksft_print_msg("io_uring_wait_cqe() failed\n");
+		log_test_result(KSFT_FAIL);
+		goto quit_child;
+	}
+
+	if (cqe->res != size) {
+		ksft_print_msg("write_fixed failed\n");
+		log_test_result(KSFT_FAIL);
+		goto quit_child;
+	}
+	io_uring_cqe_seen(&ring, cqe);
+
+	/* Read back the file content to the temporary buffer. */
+	total = 0;
+	while (total < size) {
+		cur = pread(fd, tmp + total, size - total, total);
+		if (cur < 0) {
+			ksft_perror("pread() failed\n");
+			log_test_result(KSFT_FAIL);
+			goto quit_child;
+		}
+		total += cur;
+	}
+
+	/* Finally, check if we read what we expected. */
+	if (!memcmp(mem, tmp, size)) {
+		log_test_result(KSFT_PASS);
+	} else {
+		ksft_print_msg("Longtom R/W pin is not reliable\n");
+		log_test_result(KSFT_FAIL);
+	}
+
+quit_child:
+	if (use_fork) {
+		write(comm_pipes.parent_ready[1], "0", 1);
+		wait(&ret);
+	}
+unregister_buffers:
+	io_uring_unregister_buffers(&ring);
+queue_exit:
+	io_uring_queue_exit(&ring);
+free_tmp:
+	free(tmp);
+close_file:
+	fclose(file);
+close_comm_pipes:
+	close_comm_pipes(&comm_pipes);
+}
+
+static void test_iouring_ro(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_iouring(mem, size, false);
+}
+
+static void test_iouring_fork(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_iouring(mem, size, true);
+}
+
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+
+enum ro_pin_test {
+	RO_PIN_TEST,
+	RO_PIN_TEST_SHARED,
+	RO_PIN_TEST_PREVIOUSLY_SHARED,
+	RO_PIN_TEST_RO_EXCLUSIVE,
+};
+
+static void do_test_ro_pin(char *mem, size_t size, enum ro_pin_test test,
+			   bool fast)
+{
+	struct pin_longterm_test args;
+	struct comm_pipes comm_pipes;
+	char *tmp, buf;
+	__u64 tmp_val;
+	int ret;
+
+	if (gup_fd < 0) {
+		ksft_print_msg("gup_test not available\n");
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	tmp = malloc(size);
+	if (!tmp) {
+		ksft_perror("malloc() failed\n");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	ret = setup_comm_pipes(&comm_pipes);
+	if (ret) {
+		log_test_result(KSFT_FAIL);
+		goto free_tmp;
+	}
+
+	switch (test) {
+	case RO_PIN_TEST:
+		break;
+	case RO_PIN_TEST_SHARED:
+	case RO_PIN_TEST_PREVIOUSLY_SHARED:
+		/*
+		 * Share the pages with our child. As the pages are not pinned,
+		 * this should just work.
+		 */
+		ret = fork();
+		if (ret < 0) {
+			ksft_perror("fork() failed");
+			log_test_result(KSFT_FAIL);
+			goto close_comm_pipes;
+		} else if (!ret) {
+			write(comm_pipes.child_ready[1], "0", 1);
+			while (read(comm_pipes.parent_ready[0], &buf, 1) != 1)
+				;
+			exit(0);
+		}
+
+		/* Wait until our child is ready. */
+		while (read(comm_pipes.child_ready[0], &buf, 1) != 1)
+			;
+
+		if (test == RO_PIN_TEST_PREVIOUSLY_SHARED) {
+			/*
+			 * Tell the child to quit now and wait until it quit.
+			 * The pages should now be mapped R/O into our page
+			 * tables, but they are no longer shared.
+			 */
+			write(comm_pipes.parent_ready[1], "0", 1);
+			wait(&ret);
+			if (!WIFEXITED(ret))
+				ksft_print_msg("[INFO] wait() failed\n");
+		}
+		break;
+	case RO_PIN_TEST_RO_EXCLUSIVE:
+		/*
+		 * Map the page R/O into the page table. Enable softdirty
+		 * tracking to stop the page from getting mapped R/W immediately
+		 * again by mprotect() optimizations. Note that we don't have an
+		 * easy way to test if that worked (the pagemap does not export
+		 * if the page is mapped R/O vs. R/W).
+		 */
+		ret = mprotect(mem, size, PROT_READ);
+		clear_softdirty();
+		ret |= mprotect(mem, size, PROT_READ | PROT_WRITE);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			goto close_comm_pipes;
+		}
+		break;
+	default:
+		assert(false);
+	}
+
+	/* Take a R/O pin. This should trigger unsharing. */
+	args.addr = (__u64)(uintptr_t)mem;
+	args.size = size;
+	args.flags = fast ? PIN_LONGTERM_TEST_FLAG_USE_FAST : 0;
+	ret = ioctl(gup_fd, PIN_LONGTERM_TEST_START, &args);
+	if (ret) {
+		if (errno == EINVAL)
+			ret = KSFT_SKIP;
+		else
+			ret = KSFT_FAIL;
+		ksft_perror("PIN_LONGTERM_TEST_START failed");
+		log_test_result(ret);
+		goto wait;
+	}
+
+	/* Modify the page. */
+	memset(mem, 0xff, size);
+
+	/*
+	 * Read back the content via the pin to the temporary buffer and
+	 * test if we observed the modification.
+	 */
+	tmp_val = (__u64)(uintptr_t)tmp;
+	ret = ioctl(gup_fd, PIN_LONGTERM_TEST_READ, &tmp_val);
+	if (ret) {
+		ksft_perror("PIN_LONGTERM_TEST_READ failed");
+		log_test_result(KSFT_FAIL);
+	} else {
+		if (!memcmp(mem, tmp, size)) {
+			log_test_result(KSFT_PASS);
+		} else {
+			ksft_print_msg("Longterm R/O pin is not reliable\n");
+			log_test_result(KSFT_FAIL);
+		}
+	}
+
+	ret = ioctl(gup_fd, PIN_LONGTERM_TEST_STOP);
+	if (ret)
+		ksft_perror("PIN_LONGTERM_TEST_STOP failed");
+wait:
+	switch (test) {
+	case RO_PIN_TEST_SHARED:
+		write(comm_pipes.parent_ready[1], "0", 1);
+		wait(&ret);
+		if (!WIFEXITED(ret))
+			ksft_perror("wait() failed");
+		break;
+	default:
+		break;
+	}
+close_comm_pipes:
+	close_comm_pipes(&comm_pipes);
+free_tmp:
+	free(tmp);
+}
+
+static void test_ro_pin_on_shared(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_SHARED, false);
+}
+
+static void test_ro_fast_pin_on_shared(char *mem, size_t size, bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_SHARED, true);
+}
+
+static void test_ro_pin_on_ro_previously_shared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_PREVIOUSLY_SHARED, false);
+}
+
+static void test_ro_fast_pin_on_ro_previously_shared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_PREVIOUSLY_SHARED, true);
+}
+
+static void test_ro_pin_on_ro_exclusive(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_RO_EXCLUSIVE, false);
+}
+
+static void test_ro_fast_pin_on_ro_exclusive(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST_RO_EXCLUSIVE, true);
+}
+
+typedef void (*test_fn)(char *mem, size_t size, bool hugetlb);
+
+static void do_run_with_base_page(test_fn fn, bool swapout)
+{
+	char *mem;
+	int ret;
+
+	mem = mmap(NULL, pagesize, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	ret = madvise(mem, pagesize, MADV_NOHUGEPAGE);
+	/* Ignore if not around on a kernel. */
+	if (ret && errno != EINVAL) {
+		ksft_perror("MADV_NOHUGEPAGE failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* Populate a base page. */
+	memset(mem, 1, pagesize);
+
+	if (swapout) {
+		madvise(mem, pagesize, MADV_PAGEOUT);
+		if (!pagemap_is_swapped(pagemap_fd, mem)) {
+			ksft_print_msg("MADV_PAGEOUT did not work, is swap enabled?\n");
+			log_test_result(KSFT_SKIP);
+			goto munmap;
+		}
+	}
+
+	fn(mem, pagesize, false);
+munmap:
+	munmap(mem, pagesize);
+}
+
+static void run_with_base_page(test_fn fn, const char *desc)
+{
+	log_test_start("%s ... with base page", desc);
+	do_run_with_base_page(fn, false);
+}
+
+static void run_with_base_page_swap(test_fn fn, const char *desc)
+{
+	log_test_start("%s ... with swapped out base page", desc);
+	do_run_with_base_page(fn, true);
+}
+
+enum thp_run {
+	THP_RUN_PMD,
+	THP_RUN_PMD_SWAPOUT,
+	THP_RUN_PTE,
+	THP_RUN_PTE_SWAPOUT,
+	THP_RUN_SINGLE_PTE,
+	THP_RUN_SINGLE_PTE_SWAPOUT,
+	THP_RUN_PARTIAL_MREMAP,
+	THP_RUN_PARTIAL_SHARED,
+};
+
+static void do_run_with_thp(test_fn fn, enum thp_run thp_run, size_t thpsize)
+{
+	char *mem, *mmap_mem, *tmp, *mremap_mem = MAP_FAILED;
+	size_t size, mmap_size, mremap_size;
+	int ret;
+
+	/* For alignment purposes, we need twice the thp size. */
+	mmap_size = 2 * thpsize;
+	mmap_mem = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mmap_mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	/* We need a THP-aligned memory area. */
+	mem = (char *)(((uintptr_t)mmap_mem + thpsize) & ~(thpsize - 1));
+
+	ret = madvise(mem, thpsize, MADV_HUGEPAGE);
+	if (ret) {
+		ksft_perror("MADV_HUGEPAGE failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/*
+	 * Try to populate a THP. Touch the first sub-page and test if
+	 * we get the last sub-page populated automatically.
+	 */
+	mem[0] = 1;
+	if (!pagemap_is_populated(pagemap_fd, mem + thpsize - pagesize)) {
+		ksft_print_msg("Did not get a THP populated\n");
+		log_test_result(KSFT_SKIP);
+		goto munmap;
+	}
+	memset(mem, 1, thpsize);
+
+	size = thpsize;
+	switch (thp_run) {
+	case THP_RUN_PMD:
+	case THP_RUN_PMD_SWAPOUT:
+		assert(thpsize == pmdsize);
+		break;
+	case THP_RUN_PTE:
+	case THP_RUN_PTE_SWAPOUT:
+		/*
+		 * Trigger PTE-mapping the THP by temporarily mapping a single
+		 * subpage R/O. This is a noop if the THP is not pmdsize (and
+		 * therefore already PTE-mapped).
+		 */
+		ret = mprotect(mem + pagesize, pagesize, PROT_READ);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		ret = mprotect(mem + pagesize, pagesize, PROT_READ | PROT_WRITE);
+		if (ret) {
+			ksft_perror("mprotect() failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		break;
+	case THP_RUN_SINGLE_PTE:
+	case THP_RUN_SINGLE_PTE_SWAPOUT:
+		/*
+		 * Discard all but a single subpage of that PTE-mapped THP. What
+		 * remains is a single PTE mapping a single subpage.
+		 */
+		ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DONTNEED);
+		if (ret) {
+			ksft_perror("MADV_DONTNEED failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		size = pagesize;
+		break;
+	case THP_RUN_PARTIAL_MREMAP:
+		/*
+		 * Remap half of the THP. We need some new memory location
+		 * for that.
+		 */
+		mremap_size = thpsize / 2;
+		mremap_mem = mmap(NULL, mremap_size, PROT_NONE,
+				  MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+		if (mremap_mem == MAP_FAILED) {
+			ksft_perror("mmap() failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		tmp = mremap(mem + mremap_size, mremap_size, mremap_size,
+			     MREMAP_MAYMOVE | MREMAP_FIXED, mremap_mem);
+		if (tmp != mremap_mem) {
+			ksft_perror("mremap() failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		size = mremap_size;
+		break;
+	case THP_RUN_PARTIAL_SHARED:
+		/*
+		 * Share the first page of the THP with a child and quit the
+		 * child. This will result in some parts of the THP never
+		 * have been shared.
+		 */
+		ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DONTFORK);
+		if (ret) {
+			ksft_perror("MADV_DONTFORK failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		ret = fork();
+		if (ret < 0) {
+			ksft_perror("fork() failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		} else if (!ret) {
+			exit(0);
+		}
+		wait(&ret);
+		/* Allow for sharing all pages again. */
+		ret = madvise(mem + pagesize, thpsize - pagesize, MADV_DOFORK);
+		if (ret) {
+			ksft_perror("MADV_DOFORK failed");
+			log_test_result(KSFT_FAIL);
+			goto munmap;
+		}
+		break;
+	default:
+		assert(false);
+	}
+
+	switch (thp_run) {
+	case THP_RUN_PMD_SWAPOUT:
+	case THP_RUN_PTE_SWAPOUT:
+	case THP_RUN_SINGLE_PTE_SWAPOUT:
+		madvise(mem, size, MADV_PAGEOUT);
+		if (!range_is_swapped(mem, size)) {
+			ksft_print_msg("MADV_PAGEOUT did not work, is swap enabled?\n");
+			log_test_result(KSFT_SKIP);
+			goto munmap;
+		}
+		break;
+	default:
+		break;
+	}
+
+	fn(mem, size, false);
+munmap:
+	munmap(mmap_mem, mmap_size);
+	if (mremap_mem != MAP_FAILED)
+		munmap(mremap_mem, mremap_size);
+}
+
+static void run_with_thp(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PMD, size);
+}
+
+static void run_with_thp_swap(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with swapped-out THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PMD_SWAPOUT, size);
+}
+
+static void run_with_pte_mapped_thp(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with PTE-mapped THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PTE, size);
+}
+
+static void run_with_pte_mapped_thp_swap(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with swapped-out, PTE-mapped THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PTE_SWAPOUT, size);
+}
+
+static void run_with_single_pte_of_thp(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with single PTE of THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_SINGLE_PTE, size);
+}
+
+static void run_with_single_pte_of_thp_swap(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with single PTE of swapped-out THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_SINGLE_PTE_SWAPOUT, size);
+}
+
+static void run_with_partial_mremap_thp(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with partially mremap()'ed THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PARTIAL_MREMAP, size);
+}
+
+static void run_with_partial_shared_thp(test_fn fn, const char *desc, size_t size)
+{
+	log_test_start("%s ... with partially shared THP (%zu kB)",
+		desc, size / 1024);
+	do_run_with_thp(fn, THP_RUN_PARTIAL_SHARED, size);
+}
+
+static void run_with_hugetlb(test_fn fn, const char *desc, size_t hugetlbsize)
+{
+	int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB;
+	char *mem, *dummy;
+
+	log_test_start("%s ... with hugetlb (%zu kB)", desc,
+		       hugetlbsize / 1024);
+
+	flags |= __builtin_ctzll(hugetlbsize) << MAP_HUGE_SHIFT;
+
+	mem = mmap(NULL, hugetlbsize, PROT_READ | PROT_WRITE, flags, -1, 0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("need more free huge pages");
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	/* Populate an huge page. */
+	memset(mem, 1, hugetlbsize);
+
+	/*
+	 * We need a total of two hugetlb pages to handle COW/unsharing
+	 * properly, otherwise we might get zapped by a SIGBUS.
+	 */
+	dummy = mmap(NULL, hugetlbsize, PROT_READ | PROT_WRITE, flags, -1, 0);
+	if (dummy == MAP_FAILED) {
+		ksft_perror("need more free huge pages");
+		log_test_result(KSFT_SKIP);
+		goto munmap;
+	}
+	munmap(dummy, hugetlbsize);
+
+	fn(mem, hugetlbsize, true);
+munmap:
+	munmap(mem, hugetlbsize);
+}
+
+struct test_case {
+	const char *desc;
+	test_fn fn;
+};
+
+/*
+ * Test cases that are specific to anonymous pages: pages in private mappings
+ * that may get shared via COW during fork().
+ */
+static const struct test_case anon_test_cases[] = {
+	/*
+	 * Basic COW tests for fork() without any GUP. If we miss to break COW,
+	 * either the child can observe modifications by the parent or the
+	 * other way around.
+	 */
+	{
+		"Basic COW after fork()",
+		test_cow_in_parent,
+	},
+	/*
+	 * Basic test, but do an additional mprotect(PROT_READ)+
+	 * mprotect(PROT_READ|PROT_WRITE) in the parent before write access.
+	 */
+	{
+		"Basic COW after fork() with mprotect() optimization",
+		test_cow_in_parent_mprotect,
+	},
+	/*
+	 * vmsplice() [R/O GUP] + unmap in the child; modify in the parent. If
+	 * we miss to break COW, the child observes modifications by the parent.
+	 * This is CVE-2020-29374 reported by Jann Horn.
+	 */
+	{
+		"vmsplice() + unmap in child",
+		test_vmsplice_in_child,
+	},
+	/*
+	 * vmsplice() test, but do an additional mprotect(PROT_READ)+
+	 * mprotect(PROT_READ|PROT_WRITE) in the parent before write access.
+	 */
+	{
+		"vmsplice() + unmap in child with mprotect() optimization",
+		test_vmsplice_in_child_mprotect,
+	},
+	/*
+	 * vmsplice() [R/O GUP] in parent before fork(), unmap in parent after
+	 * fork(); modify in the child. If we miss to break COW, the parent
+	 * observes modifications by the child.
+	 */
+	{
+		"vmsplice() before fork(), unmap in parent after fork()",
+		test_vmsplice_before_fork,
+	},
+	/*
+	 * vmsplice() [R/O GUP] + unmap in parent after fork(); modify in the
+	 * child. If we miss to break COW, the parent observes modifications by
+	 * the child.
+	 */
+	{
+		"vmsplice() + unmap in parent after fork()",
+		test_vmsplice_after_fork,
+	},
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+	/*
+	 * Take a R/W longterm pin and then map the page R/O into the page
+	 * table to trigger a write fault on next access. When modifying the
+	 * page, the page content must be visible via the pin.
+	 */
+	{
+		"R/O-mapping a page registered as iouring fixed buffer",
+		test_iouring_ro,
+	},
+	/*
+	 * Take a R/W longterm pin and then fork() a child. When modifying the
+	 * page, the page content must be visible via the pin. We expect the
+	 * pinned page to not get shared with the child.
+	 */
+	{
+		"fork() with an iouring fixed buffer",
+		test_iouring_fork,
+	},
+
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+	/*
+	 * Take a R/O longterm pin on a R/O-mapped shared anonymous page.
+	 * When modifying the page via the page table, the page content change
+	 * must be visible via the pin.
+	 */
+	{
+		"R/O GUP pin on R/O-mapped shared page",
+		test_ro_pin_on_shared,
+	},
+	/* Same as above, but using GUP-fast. */
+	{
+		"R/O GUP-fast pin on R/O-mapped shared page",
+		test_ro_fast_pin_on_shared,
+	},
+	/*
+	 * Take a R/O longterm pin on a R/O-mapped exclusive anonymous page that
+	 * was previously shared. When modifying the page via the page table,
+	 * the page content change must be visible via the pin.
+	 */
+	{
+		"R/O GUP pin on R/O-mapped previously-shared page",
+		test_ro_pin_on_ro_previously_shared,
+	},
+	/* Same as above, but using GUP-fast. */
+	{
+		"R/O GUP-fast pin on R/O-mapped previously-shared page",
+		test_ro_fast_pin_on_ro_previously_shared,
+	},
+	/*
+	 * Take a R/O longterm pin on a R/O-mapped exclusive anonymous page.
+	 * When modifying the page via the page table, the page content change
+	 * must be visible via the pin.
+	 */
+	{
+		"R/O GUP pin on R/O-mapped exclusive page",
+		test_ro_pin_on_ro_exclusive,
+	},
+	/* Same as above, but using GUP-fast. */
+	{
+		"R/O GUP-fast pin on R/O-mapped exclusive page",
+		test_ro_fast_pin_on_ro_exclusive,
+	},
+};
+
+static void run_anon_test_case(struct test_case const *test_case)
+{
+	int i;
+
+	run_with_base_page(test_case->fn, test_case->desc);
+	run_with_base_page_swap(test_case->fn, test_case->desc);
+	for (i = 0; i < nr_thpsizes; i++) {
+		size_t size = thpsizes[i];
+		struct thp_settings settings = *thp_current_settings();
+
+		settings.hugepages[sz2ord(pmdsize, pagesize)].enabled = THP_NEVER;
+		settings.hugepages[sz2ord(size, pagesize)].enabled = THP_ALWAYS;
+		thp_push_settings(&settings);
+
+		if (size == pmdsize) {
+			run_with_thp(test_case->fn, test_case->desc, size);
+			run_with_thp_swap(test_case->fn, test_case->desc, size);
+		}
+
+		run_with_pte_mapped_thp(test_case->fn, test_case->desc, size);
+		run_with_pte_mapped_thp_swap(test_case->fn, test_case->desc, size);
+		run_with_single_pte_of_thp(test_case->fn, test_case->desc, size);
+		run_with_single_pte_of_thp_swap(test_case->fn, test_case->desc, size);
+		run_with_partial_mremap_thp(test_case->fn, test_case->desc, size);
+		run_with_partial_shared_thp(test_case->fn, test_case->desc, size);
+
+		thp_pop_settings();
+	}
+	for (i = 0; i < nr_hugetlbsizes; i++)
+		run_with_hugetlb(test_case->fn, test_case->desc,
+				 hugetlbsizes[i]);
+}
+
+static void run_anon_test_cases(void)
+{
+	int i;
+
+	ksft_print_msg("[INFO] Anonymous memory tests in private mappings\n");
+
+	for (i = 0; i < ARRAY_SIZE(anon_test_cases); i++)
+		run_anon_test_case(&anon_test_cases[i]);
+}
+
+static int tests_per_anon_test_case(void)
+{
+	int tests = 2 + nr_hugetlbsizes;
+
+	tests += 6 * nr_thpsizes;
+	if (pmdsize)
+		tests += 2;
+	return tests;
+}
+
+enum anon_thp_collapse_test {
+	ANON_THP_COLLAPSE_UNSHARED,
+	ANON_THP_COLLAPSE_FULLY_SHARED,
+	ANON_THP_COLLAPSE_LOWER_SHARED,
+	ANON_THP_COLLAPSE_UPPER_SHARED,
+};
+
+static void do_test_anon_thp_collapse(char *mem, size_t size,
+				      enum anon_thp_collapse_test test)
+{
+	struct comm_pipes comm_pipes;
+	char buf;
+	int ret;
+
+	ret = setup_comm_pipes(&comm_pipes);
+	if (ret) {
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	/*
+	 * Trigger PTE-mapping the THP by temporarily mapping a single subpage
+	 * R/O, such that we can try collapsing it later.
+	 */
+	ret = mprotect(mem + pagesize, pagesize, PROT_READ);
+	if (ret) {
+		ksft_perror("mprotect() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	}
+	ret = mprotect(mem + pagesize, pagesize, PROT_READ | PROT_WRITE);
+	if (ret) {
+		ksft_perror("mprotect() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	}
+
+	switch (test) {
+	case ANON_THP_COLLAPSE_UNSHARED:
+		/* Collapse before actually COW-sharing the page. */
+		ret = madvise(mem, size, MADV_COLLAPSE);
+		if (ret) {
+			ksft_perror("MADV_COLLAPSE failed");
+			log_test_result(KSFT_SKIP);
+			goto close_comm_pipes;
+		}
+		break;
+	case ANON_THP_COLLAPSE_FULLY_SHARED:
+		/* COW-share the full PTE-mapped THP. */
+		break;
+	case ANON_THP_COLLAPSE_LOWER_SHARED:
+		/* Don't COW-share the upper part of the THP. */
+		ret = madvise(mem + size / 2, size / 2, MADV_DONTFORK);
+		if (ret) {
+			ksft_perror("MADV_DONTFORK failed");
+			log_test_result(KSFT_FAIL);
+			goto close_comm_pipes;
+		}
+		break;
+	case ANON_THP_COLLAPSE_UPPER_SHARED:
+		/* Don't COW-share the lower part of the THP. */
+		ret = madvise(mem, size / 2, MADV_DONTFORK);
+		if (ret) {
+			ksft_perror("MADV_DONTFORK failed");
+			log_test_result(KSFT_FAIL);
+			goto close_comm_pipes;
+		}
+		break;
+	default:
+		assert(false);
+	}
+
+	ret = fork();
+	if (ret < 0) {
+		ksft_perror("fork() failed");
+		log_test_result(KSFT_FAIL);
+		goto close_comm_pipes;
+	} else if (!ret) {
+		switch (test) {
+		case ANON_THP_COLLAPSE_UNSHARED:
+		case ANON_THP_COLLAPSE_FULLY_SHARED:
+			exit(child_memcmp_fn(mem, size, &comm_pipes));
+			break;
+		case ANON_THP_COLLAPSE_LOWER_SHARED:
+			exit(child_memcmp_fn(mem, size / 2, &comm_pipes));
+			break;
+		case ANON_THP_COLLAPSE_UPPER_SHARED:
+			exit(child_memcmp_fn(mem + size / 2, size / 2,
+					     &comm_pipes));
+			break;
+		default:
+			assert(false);
+		}
+	}
+
+	while (read(comm_pipes.child_ready[0], &buf, 1) != 1)
+		;
+
+	switch (test) {
+	case ANON_THP_COLLAPSE_UNSHARED:
+		break;
+	case ANON_THP_COLLAPSE_UPPER_SHARED:
+	case ANON_THP_COLLAPSE_LOWER_SHARED:
+		/*
+		 * Revert MADV_DONTFORK such that we merge the VMAs and are
+		 * able to actually collapse.
+		 */
+		ret = madvise(mem, size, MADV_DOFORK);
+		if (ret) {
+			ksft_perror("MADV_DOFORK failed");
+			log_test_result(KSFT_FAIL);
+			write(comm_pipes.parent_ready[1], "0", 1);
+			wait(&ret);
+			goto close_comm_pipes;
+		}
+		/* FALLTHROUGH */
+	case ANON_THP_COLLAPSE_FULLY_SHARED:
+		/* Collapse before anyone modified the COW-shared page. */
+		ret = madvise(mem, size, MADV_COLLAPSE);
+		if (ret) {
+			ksft_perror("MADV_COLLAPSE failed");
+			log_test_result(KSFT_SKIP);
+			write(comm_pipes.parent_ready[1], "0", 1);
+			wait(&ret);
+			goto close_comm_pipes;
+		}
+		break;
+	default:
+		assert(false);
+	}
+
+	/* Modify the page. */
+	memset(mem, 0xff, size);
+	write(comm_pipes.parent_ready[1], "0", 1);
+
+	wait(&ret);
+	if (WIFEXITED(ret))
+		ret = WEXITSTATUS(ret);
+	else
+		ret = -EINVAL;
+
+	if (!ret) {
+		log_test_result(KSFT_PASS);
+	} else {
+		ksft_print_msg("Leak from parent into child\n");
+		log_test_result(KSFT_FAIL);
+	}
+close_comm_pipes:
+	close_comm_pipes(&comm_pipes);
+}
+
+static void test_anon_thp_collapse_unshared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	assert(!is_hugetlb);
+	do_test_anon_thp_collapse(mem, size, ANON_THP_COLLAPSE_UNSHARED);
+}
+
+static void test_anon_thp_collapse_fully_shared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	assert(!is_hugetlb);
+	do_test_anon_thp_collapse(mem, size, ANON_THP_COLLAPSE_FULLY_SHARED);
+}
+
+static void test_anon_thp_collapse_lower_shared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	assert(!is_hugetlb);
+	do_test_anon_thp_collapse(mem, size, ANON_THP_COLLAPSE_LOWER_SHARED);
+}
+
+static void test_anon_thp_collapse_upper_shared(char *mem, size_t size,
+		bool is_hugetlb)
+{
+	assert(!is_hugetlb);
+	do_test_anon_thp_collapse(mem, size, ANON_THP_COLLAPSE_UPPER_SHARED);
+}
+
+/*
+ * Test cases that are specific to anonymous THP: pages in private mappings
+ * that may get shared via COW during fork().
+ */
+static const struct test_case anon_thp_test_cases[] = {
+	/*
+	 * Basic COW test for fork() without any GUP when collapsing a THP
+	 * before fork().
+	 *
+	 * Re-mapping a PTE-mapped anon THP using a single PMD ("in-place
+	 * collapse") might easily get COW handling wrong when not collapsing
+	 * exclusivity information properly.
+	 */
+	{
+		"Basic COW after fork() when collapsing before fork()",
+		test_anon_thp_collapse_unshared,
+	},
+	/* Basic COW test, but collapse after COW-sharing a full THP. */
+	{
+		"Basic COW after fork() when collapsing after fork() (fully shared)",
+		test_anon_thp_collapse_fully_shared,
+	},
+	/*
+	 * Basic COW test, but collapse after COW-sharing the lower half of a
+	 * THP.
+	 */
+	{
+		"Basic COW after fork() when collapsing after fork() (lower shared)",
+		test_anon_thp_collapse_lower_shared,
+	},
+	/*
+	 * Basic COW test, but collapse after COW-sharing the upper half of a
+	 * THP.
+	 */
+	{
+		"Basic COW after fork() when collapsing after fork() (upper shared)",
+		test_anon_thp_collapse_upper_shared,
+	},
+};
+
+static void run_anon_thp_test_cases(void)
+{
+	int i;
+
+	if (!pmdsize)
+		return;
+
+	ksft_print_msg("[INFO] Anonymous THP tests\n");
+
+	for (i = 0; i < ARRAY_SIZE(anon_thp_test_cases); i++) {
+		struct test_case const *test_case = &anon_thp_test_cases[i];
+
+		log_test_start("%s", test_case->desc);
+		do_run_with_thp(test_case->fn, THP_RUN_PMD, pmdsize);
+	}
+}
+
+static int tests_per_anon_thp_test_case(void)
+{
+	return pmdsize ? 1 : 0;
+}
+
+typedef void (*non_anon_test_fn)(char *mem, const char *smem, size_t size);
+
+static void test_cow(char *mem, const char *smem, size_t size)
+{
+	char *old = malloc(size);
+
+	/* Backup the original content. */
+	memcpy(old, smem, size);
+
+	/* Modify the page. */
+	memset(mem, 0xff, size);
+
+	/* See if we still read the old values via the other mapping. */
+	if (!memcmp(smem, old, size)) {
+		log_test_result(KSFT_PASS);
+	} else {
+		ksft_print_msg("Other mapping modified\n");
+		log_test_result(KSFT_FAIL);
+	}
+	free(old);
+}
+
+static void test_ro_pin(char *mem, const char *smem, size_t size)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST, false);
+}
+
+static void test_ro_fast_pin(char *mem, const char *smem, size_t size)
+{
+	do_test_ro_pin(mem, size, RO_PIN_TEST, true);
+}
+
+static void run_with_zeropage(non_anon_test_fn fn, const char *desc)
+{
+	char *mem, *smem;
+
+	log_test_start("%s ... with shared zeropage", desc);
+
+	mem = mmap(NULL, pagesize, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	smem = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (smem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* Read from the page to populate the shared zeropage. */
+	FORCE_READ(*mem);
+	FORCE_READ(*smem);
+
+	fn(mem, smem, pagesize);
+munmap:
+	munmap(mem, pagesize);
+	if (smem != MAP_FAILED)
+		munmap(smem, pagesize);
+}
+
+static void run_with_huge_zeropage(non_anon_test_fn fn, const char *desc)
+{
+	char *mem, *smem, *mmap_mem, *mmap_smem;
+	size_t mmap_size;
+	int ret;
+
+	log_test_start("%s ... with huge zeropage", desc);
+
+	if (!has_huge_zeropage) {
+		ksft_print_msg("Huge zeropage not enabled\n");
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	/* For alignment purposes, we need twice the thp size. */
+	mmap_size = 2 * pmdsize;
+	mmap_mem = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mmap_mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+	mmap_smem = mmap(NULL, mmap_size, PROT_READ,
+			 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mmap_smem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* We need a THP-aligned memory area. */
+	mem = (char *)(((uintptr_t)mmap_mem + pmdsize) & ~(pmdsize - 1));
+	smem = (char *)(((uintptr_t)mmap_smem + pmdsize) & ~(pmdsize - 1));
+
+	ret = madvise(mem, pmdsize, MADV_HUGEPAGE);
+	if (ret) {
+		ksft_perror("madvise()");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+	ret = madvise(smem, pmdsize, MADV_HUGEPAGE);
+	if (ret) {
+		ksft_perror("madvise()");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/*
+	 * Read from the memory to populate the huge shared zeropage. Read from
+	 * the first sub-page and test if we get another sub-page populated
+	 * automatically.
+	 */
+	FORCE_READ(mem);
+	FORCE_READ(smem);
+	if (!pagemap_is_populated(pagemap_fd, mem + pagesize) ||
+	    !pagemap_is_populated(pagemap_fd, smem + pagesize)) {
+		ksft_test_result_skip("Did not get THPs populated\n");
+		goto munmap;
+	}
+
+	fn(mem, smem, pmdsize);
+munmap:
+	munmap(mmap_mem, mmap_size);
+	if (mmap_smem != MAP_FAILED)
+		munmap(mmap_smem, mmap_size);
+}
+
+static void run_with_memfd(non_anon_test_fn fn, const char *desc)
+{
+	char *mem, *smem;
+	int fd;
+
+	log_test_start("%s ... with memfd", desc);
+
+	fd = memfd_create("test", 0);
+	if (fd < 0) {
+		ksft_perror("memfd_create() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	/* File consists of a single page filled with zeroes. */
+	if (fallocate(fd, 0, 0, pagesize)) {
+		ksft_perror("fallocate() failed");
+		log_test_result(KSFT_FAIL);
+		goto close;
+	}
+
+	/* Create a private mapping of the memfd. */
+	mem = mmap(NULL, pagesize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto close;
+	}
+	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);
+	if (smem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* Fault the page in. */
+	FORCE_READ(mem);
+	FORCE_READ(smem);
+
+	fn(mem, smem, pagesize);
+munmap:
+	munmap(mem, pagesize);
+	if (smem != MAP_FAILED)
+		munmap(smem, pagesize);
+close:
+	close(fd);
+}
+
+static void run_with_tmpfile(non_anon_test_fn fn, const char *desc)
+{
+	char *mem, *smem;
+	FILE *file;
+	int fd;
+
+	log_test_start("%s ... with tmpfile", desc);
+
+	file = tmpfile();
+	if (!file) {
+		ksft_perror("tmpfile() failed");
+		log_test_result(KSFT_FAIL);
+		return;
+	}
+
+	fd = fileno(file);
+	if (fd < 0) {
+		ksft_perror("fileno() failed");
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	/* File consists of a single page filled with zeroes. */
+	if (fallocate(fd, 0, 0, pagesize)) {
+		ksft_perror("fallocate() failed");
+		log_test_result(KSFT_FAIL);
+		goto close;
+	}
+
+	/* Create a private mapping of the memfd. */
+	mem = mmap(NULL, pagesize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto close;
+	}
+	smem = mmap(NULL, pagesize, PROT_READ, MAP_SHARED, fd, 0);
+	if (smem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* Fault the page in. */
+	FORCE_READ(mem);
+	FORCE_READ(smem);
+
+	fn(mem, smem, pagesize);
+munmap:
+	munmap(mem, pagesize);
+	if (smem != MAP_FAILED)
+		munmap(smem, pagesize);
+close:
+	fclose(file);
+}
+
+static void run_with_memfd_hugetlb(non_anon_test_fn fn, const char *desc,
+				   size_t hugetlbsize)
+{
+	int flags = MFD_HUGETLB;
+	char *mem, *smem;
+	int fd;
+
+	log_test_start("%s ... with memfd hugetlb (%zu kB)", desc,
+		       hugetlbsize / 1024);
+
+	flags |= __builtin_ctzll(hugetlbsize) << MFD_HUGE_SHIFT;
+
+	fd = memfd_create("test", flags);
+	if (fd < 0) {
+		ksft_perror("memfd_create() failed");
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	/* File consists of a single page filled with zeroes. */
+	if (fallocate(fd, 0, 0, hugetlbsize)) {
+		ksft_perror("need more free huge pages");
+		log_test_result(KSFT_SKIP);
+		goto close;
+	}
+
+	/* Create a private mapping of the memfd. */
+	mem = mmap(NULL, hugetlbsize, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd,
+		   0);
+	if (mem == MAP_FAILED) {
+		ksft_perror("need more free huge pages");
+		log_test_result(KSFT_SKIP);
+		goto close;
+	}
+	smem = mmap(NULL, hugetlbsize, PROT_READ, MAP_SHARED, fd, 0);
+	if (smem == MAP_FAILED) {
+		ksft_perror("mmap() failed");
+		log_test_result(KSFT_FAIL);
+		goto munmap;
+	}
+
+	/* Fault the page in. */
+	FORCE_READ(mem);
+	FORCE_READ(smem);
+
+	fn(mem, smem, hugetlbsize);
+munmap:
+	munmap(mem, hugetlbsize);
+	if (smem != MAP_FAILED)
+		munmap(smem, hugetlbsize);
+close:
+	close(fd);
+}
+
+struct non_anon_test_case {
+	const char *desc;
+	non_anon_test_fn fn;
+};
+
+/*
+ * Test cases that target any pages in private mappings that are not anonymous:
+ * pages that may get shared via COW ndependent of fork(). This includes
+ * the shared zeropage(s), pagecache pages, ...
+ */
+static const struct non_anon_test_case non_anon_test_cases[] = {
+	/*
+	 * Basic COW test without any GUP. If we miss to break COW, changes are
+	 * visible via other private/shared mappings.
+	 */
+	{
+		"Basic COW",
+		test_cow,
+	},
+	/*
+	 * Take a R/O longterm pin. When modifying the page via the page table,
+	 * the page content change must be visible via the pin.
+	 */
+	{
+		"R/O longterm GUP pin",
+		test_ro_pin,
+	},
+	/* Same as above, but using GUP-fast. */
+	{
+		"R/O longterm GUP-fast pin",
+		test_ro_fast_pin,
+	},
+};
+
+static void run_non_anon_test_case(struct non_anon_test_case const *test_case)
+{
+	int i;
+
+	run_with_zeropage(test_case->fn, test_case->desc);
+	run_with_memfd(test_case->fn, test_case->desc);
+	run_with_tmpfile(test_case->fn, test_case->desc);
+	if (pmdsize)
+		run_with_huge_zeropage(test_case->fn, test_case->desc);
+	for (i = 0; i < nr_hugetlbsizes; i++)
+		run_with_memfd_hugetlb(test_case->fn, test_case->desc,
+				       hugetlbsizes[i]);
+}
+
+static void run_non_anon_test_cases(void)
+{
+	int i;
+
+	ksft_print_msg("[RUN] Non-anonymous memory tests in private mappings\n");
+
+	for (i = 0; i < ARRAY_SIZE(non_anon_test_cases); i++)
+		run_non_anon_test_case(&non_anon_test_cases[i]);
+}
+
+static int tests_per_non_anon_test_case(void)
+{
+	int tests = 3 + nr_hugetlbsizes;
+
+	if (pmdsize)
+		tests += 1;
+	return tests;
+}
+
+int main(int argc, char **argv)
+{
+	struct thp_settings default_settings;
+
+	ksft_print_header();
+
+	pagesize = getpagesize();
+	pmdsize = read_pmd_pagesize();
+	if (pmdsize) {
+		/* Only if THP is supported. */
+		thp_read_settings(&default_settings);
+		default_settings.hugepages[sz2ord(pmdsize, pagesize)].enabled = THP_INHERIT;
+		thp_save_settings();
+		thp_push_settings(&default_settings);
+
+		ksft_print_msg("[INFO] detected PMD size: %zu KiB\n",
+			       pmdsize / 1024);
+		nr_thpsizes = detect_thp_sizes(thpsizes, ARRAY_SIZE(thpsizes));
+	}
+	nr_hugetlbsizes = detect_hugetlb_page_sizes(hugetlbsizes,
+						    ARRAY_SIZE(hugetlbsizes));
+	has_huge_zeropage = detect_huge_zeropage();
+
+	ksft_set_plan(ARRAY_SIZE(anon_test_cases) * tests_per_anon_test_case() +
+		      ARRAY_SIZE(anon_thp_test_cases) * tests_per_anon_thp_test_case() +
+		      ARRAY_SIZE(non_anon_test_cases) * tests_per_non_anon_test_case());
+
+	gup_fd = open("/sys/kernel/debug/gup_test", O_RDWR);
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+
+	run_anon_test_cases();
+	run_anon_thp_test_cases();
+	run_non_anon_test_cases();
+
+	if (pmdsize) {
+		/* Only if THP is supported. */
+		thp_restore_settings();
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/droppable.c b/tools/testing/selftests/mm/droppable.c
new file mode 100644
index 000000000000..44940f75c461
--- /dev/null
+++ b/tools/testing/selftests/mm/droppable.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/mman.h>
+#include <linux/mman.h>
+
+#include "kselftest.h"
+
+int main(int argc, char *argv[])
+{
+	size_t alloc_size = 134217728;
+	size_t page_size = getpagesize();
+	void *alloc;
+	pid_t child;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	alloc = mmap(0, alloc_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_DROPPABLE, -1, 0);
+	assert(alloc != MAP_FAILED);
+	memset(alloc, 'A', alloc_size);
+	for (size_t i = 0; i < alloc_size; i += page_size)
+		assert(*(uint8_t *)(alloc + i));
+
+	child = fork();
+	assert(child >= 0);
+	if (!child) {
+		for (;;)
+			*(char *)malloc(page_size) = 'B';
+	}
+
+	for (bool done = false; !done;) {
+		for (size_t i = 0; i < alloc_size; i += page_size) {
+			if (!*(uint8_t *)(alloc + i)) {
+				done = true;
+				break;
+			}
+		}
+	}
+	kill(child, SIGTERM);
+
+	ksft_test_result_pass("MAP_DROPPABLE: PASS\n");
+	exit(KSFT_PASS);
+}
diff --git a/tools/testing/selftests/mm/guard-regions.c b/tools/testing/selftests/mm/guard-regions.c
new file mode 100644
index 000000000000..dbd21d66d383
--- /dev/null
+++ b/tools/testing/selftests/mm/guard-regions.c
@@ -0,0 +1,2326 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+#include "kselftest_harness.h"
+#include <asm-generic/mman.h> /* Force the import of the tools version. */
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/limits.h>
+#include <linux/userfaultfd.h>
+#include <linux/fs.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include "vm_util.h"
+
+#include "../pidfd/pidfd.h"
+
+/*
+ * Ignore the checkpatch warning, as per the C99 standard, section 7.14.1.1:
+ *
+ * "If the signal occurs other than as the result of calling the abort or raise
+ *  function, the behavior is undefined if the signal handler refers to any
+ *  object with static storage duration other than by assigning a value to an
+ *  object declared as volatile sig_atomic_t"
+ */
+static volatile sig_atomic_t signal_jump_set;
+static sigjmp_buf signal_jmp_buf;
+
+/*
+ * How is the test backing the mapping being tested?
+ */
+enum backing_type {
+	ANON_BACKED,
+	SHMEM_BACKED,
+	LOCAL_FILE_BACKED,
+};
+
+FIXTURE(guard_regions)
+{
+	unsigned long page_size;
+	char path[PATH_MAX];
+	int fd;
+};
+
+FIXTURE_VARIANT(guard_regions)
+{
+	enum backing_type backing;
+};
+
+FIXTURE_VARIANT_ADD(guard_regions, anon)
+{
+	.backing = ANON_BACKED,
+};
+
+FIXTURE_VARIANT_ADD(guard_regions, shmem)
+{
+	.backing = SHMEM_BACKED,
+};
+
+FIXTURE_VARIANT_ADD(guard_regions, file)
+{
+	.backing = LOCAL_FILE_BACKED,
+};
+
+static bool is_anon_backed(const FIXTURE_VARIANT(guard_regions) * variant)
+{
+	switch (variant->backing) {
+	case  ANON_BACKED:
+	case  SHMEM_BACKED:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static void *mmap_(FIXTURE_DATA(guard_regions) * self,
+		   const FIXTURE_VARIANT(guard_regions) * variant,
+		   void *addr, size_t length, int prot, int extra_flags,
+		   off_t offset)
+{
+	int fd;
+	int flags = extra_flags;
+
+	switch (variant->backing) {
+	case ANON_BACKED:
+		flags |= MAP_PRIVATE | MAP_ANON;
+		fd = -1;
+		offset = 0;
+		break;
+	case SHMEM_BACKED:
+	case LOCAL_FILE_BACKED:
+		flags |= MAP_SHARED;
+		fd = self->fd;
+		break;
+	default:
+		ksft_exit_fail();
+		break;
+	}
+
+	return mmap(addr, length, prot, flags, fd, offset);
+}
+
+static int userfaultfd(int flags)
+{
+	return syscall(SYS_userfaultfd, flags);
+}
+
+static void handle_fatal(int c)
+{
+	if (!signal_jump_set)
+		return;
+
+	siglongjmp(signal_jmp_buf, c);
+}
+
+static ssize_t sys_process_madvise(int pidfd, const struct iovec *iovec,
+				   size_t n, int advice, unsigned int flags)
+{
+	return syscall(__NR_process_madvise, pidfd, iovec, n, advice, flags);
+}
+
+/*
+ * Enable our signal catcher and try to read/write the specified buffer. The
+ * return value indicates whether the read/write succeeds without a fatal
+ * signal.
+ */
+static bool try_access_buf(char *ptr, bool write)
+{
+	bool failed;
+
+	/* Tell signal handler to jump back here on fatal signal. */
+	signal_jump_set = true;
+	/* If a fatal signal arose, we will jump back here and failed is set. */
+	failed = sigsetjmp(signal_jmp_buf, 0) != 0;
+
+	if (!failed) {
+		if (write)
+			*ptr = 'x';
+		else
+			FORCE_READ(*ptr);
+	}
+
+	signal_jump_set = false;
+	return !failed;
+}
+
+/* Try and read from a buffer, return true if no fatal signal. */
+static bool try_read_buf(char *ptr)
+{
+	return try_access_buf(ptr, false);
+}
+
+/* Try and write to a buffer, return true if no fatal signal. */
+static bool try_write_buf(char *ptr)
+{
+	return try_access_buf(ptr, true);
+}
+
+/*
+ * Try and BOTH read from AND write to a buffer, return true if BOTH operations
+ * succeed.
+ */
+static bool try_read_write_buf(char *ptr)
+{
+	return try_read_buf(ptr) && try_write_buf(ptr);
+}
+
+static void setup_sighandler(void)
+{
+	struct sigaction act = {
+		.sa_handler = &handle_fatal,
+		.sa_flags = SA_NODEFER,
+	};
+
+	sigemptyset(&act.sa_mask);
+	if (sigaction(SIGSEGV, &act, NULL))
+		ksft_exit_fail_perror("sigaction");
+}
+
+static void teardown_sighandler(void)
+{
+	struct sigaction act = {
+		.sa_handler = SIG_DFL,
+		.sa_flags = SA_NODEFER,
+	};
+
+	sigemptyset(&act.sa_mask);
+	sigaction(SIGSEGV, &act, NULL);
+}
+
+static int open_file(const char *prefix, char *path)
+{
+	int fd;
+
+	snprintf(path, PATH_MAX, "%sguard_regions_test_file_XXXXXX", prefix);
+	fd = mkstemp(path);
+	if (fd < 0)
+		ksft_exit_fail_perror("mkstemp");
+
+	return fd;
+}
+
+/* Establish a varying pattern in a buffer. */
+static void set_pattern(char *ptr, size_t num_pages, size_t page_size)
+{
+	size_t i;
+
+	for (i = 0; i < num_pages; i++) {
+		char *ptr2 = &ptr[i * page_size];
+
+		memset(ptr2, 'a' + (i % 26), page_size);
+	}
+}
+
+/*
+ * Check that a buffer contains the pattern set by set_pattern(), starting at a
+ * page offset of pgoff within the buffer.
+ */
+static bool check_pattern_offset(char *ptr, size_t num_pages, size_t page_size,
+				 size_t pgoff)
+{
+	size_t i;
+
+	for (i = 0; i < num_pages * page_size; i++) {
+		size_t offset = pgoff * page_size + i;
+		char actual = ptr[offset];
+		char expected = 'a' + ((offset / page_size) % 26);
+
+		if (actual != expected)
+			return false;
+	}
+
+	return true;
+}
+
+/* Check that a buffer contains the pattern set by set_pattern(). */
+static bool check_pattern(char *ptr, size_t num_pages, size_t page_size)
+{
+	return check_pattern_offset(ptr, num_pages, page_size, 0);
+}
+
+/* Determine if a buffer contains only repetitions of a specified char. */
+static bool is_buf_eq(char *buf, size_t size, char chr)
+{
+	size_t i;
+
+	for (i = 0; i < size; i++) {
+		if (buf[i] != chr)
+			return false;
+	}
+
+	return true;
+}
+
+/*
+ * Some file systems have issues with merging due to changing merge-sensitive
+ * parameters in the .mmap callback, and prior to .mmap_prepare being
+ * implemented everywhere this will now result in an unexpected failure to
+ * merge (e.g. - overlayfs).
+ *
+ * Perform a simple test to see if the local file system suffers from this, if
+ * it does then we can skip test logic that assumes local file system merging is
+ * sane.
+ */
+static bool local_fs_has_sane_mmap(FIXTURE_DATA(guard_regions) * self,
+				   const FIXTURE_VARIANT(guard_regions) * variant)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr, *ptr2;
+	struct procmap_fd procmap;
+
+	if (variant->backing != LOCAL_FILE_BACKED)
+		return true;
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ | PROT_WRITE, 0, 0);
+	if (ptr == MAP_FAILED)
+		return false;
+	/* Unmap the middle. */
+	munmap(&ptr[5 * page_size], page_size);
+
+	/* Map again. */
+	ptr2 = mmap_(self, variant, &ptr[5 * page_size], page_size, PROT_READ | PROT_WRITE,
+		     MAP_FIXED, 5 * page_size);
+
+	if (ptr2 == MAP_FAILED)
+		return false;
+
+	/* Now make sure they all merged. */
+	if (open_self_procmap(&procmap) != 0)
+		return false;
+	if (!find_vma_procmap(&procmap, ptr))
+		return false;
+	if (procmap.query.vma_start != (unsigned long)ptr)
+		return false;
+	if (procmap.query.vma_end != (unsigned long)ptr + 10 * page_size)
+		return false;
+	close_procmap(&procmap);
+
+	return true;
+}
+
+FIXTURE_SETUP(guard_regions)
+{
+	self->page_size = (unsigned long)sysconf(_SC_PAGESIZE);
+	setup_sighandler();
+
+	switch (variant->backing) {
+	case ANON_BACKED:
+		return;
+	case LOCAL_FILE_BACKED:
+		self->fd = open_file("", self->path);
+		break;
+	case SHMEM_BACKED:
+		self->fd = memfd_create(self->path, 0);
+		break;
+	}
+
+	/* We truncate file to at least 100 pages, tests can modify as needed. */
+	ASSERT_EQ(ftruncate(self->fd, 100 * self->page_size), 0);
+};
+
+FIXTURE_TEARDOWN_PARENT(guard_regions)
+{
+	teardown_sighandler();
+
+	if (variant->backing == ANON_BACKED)
+		return;
+
+	if (self->fd >= 0)
+		close(self->fd);
+
+	if (self->path[0] != '\0')
+		unlink(self->path);
+}
+
+TEST_F(guard_regions, basic)
+{
+	const unsigned long NUM_PAGES = 10;
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	ptr = mmap_(self, variant, NULL, NUM_PAGES * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Trivially assert we can touch the first page. */
+	ASSERT_TRUE(try_read_write_buf(ptr));
+
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Establish that 1st page SIGSEGV's. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+
+	/* Ensure we can touch everything else.*/
+	for (i = 1; i < NUM_PAGES; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Establish a guard page at the end of the mapping. */
+	ASSERT_EQ(madvise(&ptr[(NUM_PAGES - 1) * page_size], page_size,
+			  MADV_GUARD_INSTALL), 0);
+
+	/* Check that both guard pages result in SIGSEGV. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[(NUM_PAGES - 1) * page_size]));
+
+	/* Remove the first guard page. */
+	ASSERT_FALSE(madvise(ptr, page_size, MADV_GUARD_REMOVE));
+
+	/* Make sure we can touch it. */
+	ASSERT_TRUE(try_read_write_buf(ptr));
+
+	/* Remove the last guard page. */
+	ASSERT_FALSE(madvise(&ptr[(NUM_PAGES - 1) * page_size], page_size,
+			     MADV_GUARD_REMOVE));
+
+	/* Make sure we can touch it. */
+	ASSERT_TRUE(try_read_write_buf(&ptr[(NUM_PAGES - 1) * page_size]));
+
+	/*
+	 *  Test setting a _range_ of pages, namely the first 3. The first of
+	 *  these be faulted in, so this also tests that we can install guard
+	 *  pages over backed pages.
+	 */
+	ASSERT_EQ(madvise(ptr, 3 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure they are all guard pages. */
+	for (i = 0; i < 3; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Make sure the rest are not. */
+	for (i = 3; i < NUM_PAGES; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Remove guard pages. */
+	ASSERT_EQ(madvise(ptr, NUM_PAGES * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Now make sure we can touch everything. */
+	for (i = 0; i < NUM_PAGES; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/*
+	 * Now remove all guard pages, make sure we don't remove existing
+	 * entries.
+	 */
+	ASSERT_EQ(madvise(ptr, NUM_PAGES * page_size, MADV_GUARD_REMOVE), 0);
+
+	for (i = 0; i < NUM_PAGES * page_size; i += page_size) {
+		char chr = ptr[i];
+
+		ASSERT_EQ(chr, 'x');
+	}
+
+	ASSERT_EQ(munmap(ptr, NUM_PAGES * page_size), 0);
+}
+
+/* Assert that operations applied across multiple VMAs work as expected. */
+TEST_F(guard_regions, multi_vma)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr_region, *ptr, *ptr1, *ptr2, *ptr3;
+	int i;
+
+	/* Reserve a 100 page region over which we can install VMAs. */
+	ptr_region = mmap_(self, variant, NULL, 100 * page_size,
+			   PROT_NONE, 0, 0);
+	ASSERT_NE(ptr_region, MAP_FAILED);
+
+	/* Place a VMA of 10 pages size at the start of the region. */
+	ptr1 = mmap_(self, variant, ptr_region, 10 * page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr1, MAP_FAILED);
+
+	/* Place a VMA of 5 pages size 50 pages into the region. */
+	ptr2 = mmap_(self, variant, &ptr_region[50 * page_size], 5 * page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/* Place a VMA of 20 pages size at the end of the region. */
+	ptr3 = mmap_(self, variant, &ptr_region[80 * page_size], 20 * page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/* Unmap gaps. */
+	ASSERT_EQ(munmap(&ptr_region[10 * page_size], 40 * page_size), 0);
+	ASSERT_EQ(munmap(&ptr_region[55 * page_size], 25 * page_size), 0);
+
+	/*
+	 * We end up with VMAs like this:
+	 *
+	 * 0    10 .. 50   55 .. 80   100
+	 * [---]      [---]      [---]
+	 */
+
+	/*
+	 * Now mark the whole range as guard pages and make sure all VMAs are as
+	 * such.
+	 */
+
+	/*
+	 * madvise() is certifiable and lets you perform operations over gaps,
+	 * everything works, but it indicates an error and errno is set to
+	 * -ENOMEM. Also if anything runs out of memory it is set to
+	 * -ENOMEM. You are meant to guess which is which.
+	 */
+	ASSERT_EQ(madvise(ptr_region, 100 * page_size, MADV_GUARD_INSTALL), -1);
+	ASSERT_EQ(errno, ENOMEM);
+
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr1[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	for (i = 0; i < 5; i++) {
+		char *curr = &ptr2[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	for (i = 0; i < 20; i++) {
+		char *curr = &ptr3[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Now remove guar pages over range and assert the opposite. */
+
+	ASSERT_EQ(madvise(ptr_region, 100 * page_size, MADV_GUARD_REMOVE), -1);
+	ASSERT_EQ(errno, ENOMEM);
+
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr1[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	for (i = 0; i < 5; i++) {
+		char *curr = &ptr2[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	for (i = 0; i < 20; i++) {
+		char *curr = &ptr3[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Now map incompatible VMAs in the gaps. */
+	ptr = mmap_(self, variant, &ptr_region[10 * page_size], 40 * page_size,
+		    PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr = mmap_(self, variant, &ptr_region[55 * page_size], 25 * page_size,
+		    PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * We end up with VMAs like this:
+	 *
+	 * 0    10 .. 50   55 .. 80   100
+	 * [---][xxxx][---][xxxx][---]
+	 *
+	 * Where 'x' signifies VMAs that cannot be merged with those adjacent to
+	 * them.
+	 */
+
+	/* Multiple VMAs adjacent to one another should result in no error. */
+	ASSERT_EQ(madvise(ptr_region, 100 * page_size, MADV_GUARD_INSTALL), 0);
+	for (i = 0; i < 100; i++) {
+		char *curr = &ptr_region[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+	ASSERT_EQ(madvise(ptr_region, 100 * page_size, MADV_GUARD_REMOVE), 0);
+	for (i = 0; i < 100; i++) {
+		char *curr = &ptr_region[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr_region, 100 * page_size), 0);
+}
+
+/*
+ * Assert that batched operations performed using process_madvise() work as
+ * expected.
+ */
+TEST_F(guard_regions, process_madvise)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr_region, *ptr1, *ptr2, *ptr3;
+	ssize_t count;
+	struct iovec vec[6];
+
+	/* Reserve region to map over. */
+	ptr_region = mmap_(self, variant, NULL, 100 * page_size,
+			   PROT_NONE, 0, 0);
+	ASSERT_NE(ptr_region, MAP_FAILED);
+
+	/*
+	 * 10 pages offset 1 page into reserve region. We MAP_POPULATE so we
+	 * overwrite existing entries and test this code path against
+	 * overwriting existing entries.
+	 */
+	ptr1 = mmap_(self, variant, &ptr_region[page_size], 10 * page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED | MAP_POPULATE, 0);
+	ASSERT_NE(ptr1, MAP_FAILED);
+	/* We want guard markers at start/end of each VMA. */
+	vec[0].iov_base = ptr1;
+	vec[0].iov_len = page_size;
+	vec[1].iov_base = &ptr1[9 * page_size];
+	vec[1].iov_len = page_size;
+
+	/* 5 pages offset 50 pages into reserve region. */
+	ptr2 = mmap_(self, variant, &ptr_region[50 * page_size], 5 * page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	vec[2].iov_base = ptr2;
+	vec[2].iov_len = page_size;
+	vec[3].iov_base = &ptr2[4 * page_size];
+	vec[3].iov_len = page_size;
+
+	/* 20 pages offset 79 pages into reserve region. */
+	ptr3 = mmap_(self, variant, &ptr_region[79 * page_size], 20 * page_size,
+		    PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr3, MAP_FAILED);
+	vec[4].iov_base = ptr3;
+	vec[4].iov_len = page_size;
+	vec[5].iov_base = &ptr3[19 * page_size];
+	vec[5].iov_len = page_size;
+
+	/* Free surrounding VMAs. */
+	ASSERT_EQ(munmap(ptr_region, page_size), 0);
+	ASSERT_EQ(munmap(&ptr_region[11 * page_size], 39 * page_size), 0);
+	ASSERT_EQ(munmap(&ptr_region[55 * page_size], 24 * page_size), 0);
+	ASSERT_EQ(munmap(&ptr_region[99 * page_size], page_size), 0);
+
+	/* Now guard in one step. */
+	count = sys_process_madvise(PIDFD_SELF, vec, 6, MADV_GUARD_INSTALL, 0);
+
+	/* OK we don't have permission to do this, skip. */
+	if (count == -1 && errno == EPERM)
+		SKIP(return, "No process_madvise() permissions, try running as root.\n");
+
+	/* Returns the number of bytes advised. */
+	ASSERT_EQ(count, 6 * page_size);
+
+	/* Now make sure the guarding was applied. */
+
+	ASSERT_FALSE(try_read_write_buf(ptr1));
+	ASSERT_FALSE(try_read_write_buf(&ptr1[9 * page_size]));
+
+	ASSERT_FALSE(try_read_write_buf(ptr2));
+	ASSERT_FALSE(try_read_write_buf(&ptr2[4 * page_size]));
+
+	ASSERT_FALSE(try_read_write_buf(ptr3));
+	ASSERT_FALSE(try_read_write_buf(&ptr3[19 * page_size]));
+
+	/* Now do the same with unguard... */
+	count = sys_process_madvise(PIDFD_SELF, vec, 6, MADV_GUARD_REMOVE, 0);
+
+	/* ...and everything should now succeed. */
+
+	ASSERT_TRUE(try_read_write_buf(ptr1));
+	ASSERT_TRUE(try_read_write_buf(&ptr1[9 * page_size]));
+
+	ASSERT_TRUE(try_read_write_buf(ptr2));
+	ASSERT_TRUE(try_read_write_buf(&ptr2[4 * page_size]));
+
+	ASSERT_TRUE(try_read_write_buf(ptr3));
+	ASSERT_TRUE(try_read_write_buf(&ptr3[19 * page_size]));
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr1, 10 * page_size), 0);
+	ASSERT_EQ(munmap(ptr2, 5 * page_size), 0);
+	ASSERT_EQ(munmap(ptr3, 20 * page_size), 0);
+}
+
+/* Assert that unmapping ranges does not leave guard markers behind. */
+TEST_F(guard_regions, munmap)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr, *ptr_new1, *ptr_new2;
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard first and last pages. */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	ASSERT_EQ(madvise(&ptr[9 * page_size], page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Assert that they are guarded. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[9 * page_size]));
+
+	/* Unmap them. */
+	ASSERT_EQ(munmap(ptr, page_size), 0);
+	ASSERT_EQ(munmap(&ptr[9 * page_size], page_size), 0);
+
+	/* Map over them.*/
+	ptr_new1 = mmap_(self, variant, ptr, page_size, PROT_READ | PROT_WRITE,
+			 MAP_FIXED, 0);
+	ASSERT_NE(ptr_new1, MAP_FAILED);
+	ptr_new2 = mmap_(self, variant, &ptr[9 * page_size], page_size,
+			 PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr_new2, MAP_FAILED);
+
+	/* Assert that they are now not guarded. */
+	ASSERT_TRUE(try_read_write_buf(ptr_new1));
+	ASSERT_TRUE(try_read_write_buf(ptr_new2));
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Assert that mprotect() operations have no bearing on guard markers. */
+TEST_F(guard_regions, mprotect)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard the middle of the range. */
+	ASSERT_EQ(madvise(&ptr[5 * page_size], 2 * page_size,
+			  MADV_GUARD_INSTALL), 0);
+
+	/* Assert that it is indeed guarded. */
+	ASSERT_FALSE(try_read_write_buf(&ptr[5 * page_size]));
+	ASSERT_FALSE(try_read_write_buf(&ptr[6 * page_size]));
+
+	/* Now make these pages read-only. */
+	ASSERT_EQ(mprotect(&ptr[5 * page_size], 2 * page_size, PROT_READ), 0);
+
+	/* Make sure the range is still guarded. */
+	ASSERT_FALSE(try_read_buf(&ptr[5 * page_size]));
+	ASSERT_FALSE(try_read_buf(&ptr[6 * page_size]));
+
+	/* Make sure we can guard again without issue.*/
+	ASSERT_EQ(madvise(&ptr[5 * page_size], 2 * page_size,
+			  MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the range is, yet again, still guarded. */
+	ASSERT_FALSE(try_read_buf(&ptr[5 * page_size]));
+	ASSERT_FALSE(try_read_buf(&ptr[6 * page_size]));
+
+	/* Now unguard the whole range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Make sure the whole range is readable. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Split and merge VMAs and make sure guard pages still behave. */
+TEST_F(guard_regions, split_merge)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr, *ptr_new;
+	int i;
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard the whole range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the whole range is guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Now unmap some pages in the range so we split. */
+	ASSERT_EQ(munmap(&ptr[2 * page_size], page_size), 0);
+	ASSERT_EQ(munmap(&ptr[5 * page_size], page_size), 0);
+	ASSERT_EQ(munmap(&ptr[8 * page_size], page_size), 0);
+
+	/* Make sure the remaining ranges are guarded post-split. */
+	for (i = 0; i < 2; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+	for (i = 2; i < 5; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+	for (i = 6; i < 8; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+	for (i = 9; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Now map them again - the unmap will have cleared the guards. */
+	ptr_new = mmap_(self, variant, &ptr[2 * page_size], page_size,
+			PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr_new, MAP_FAILED);
+	ptr_new = mmap_(self, variant, &ptr[5 * page_size], page_size,
+			PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr_new, MAP_FAILED);
+	ptr_new = mmap_(self, variant, &ptr[8 * page_size], page_size,
+			PROT_READ | PROT_WRITE, MAP_FIXED, 0);
+	ASSERT_NE(ptr_new, MAP_FAILED);
+
+	/* Now make sure guard pages are established. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+		bool result = try_read_write_buf(curr);
+		bool expect_true = i == 2 || i == 5 || i == 8;
+
+		ASSERT_TRUE(expect_true ? result : !result);
+	}
+
+	/* Now guard everything again. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the whole range is guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Now split the range into three. */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ), 0);
+	ASSERT_EQ(mprotect(&ptr[7 * page_size], 3 * page_size, PROT_READ), 0);
+
+	/* Make sure the whole range is guarded for read. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_buf(curr));
+	}
+
+	/* Now reset protection bits so we merge the whole thing. */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ | PROT_WRITE), 0);
+	ASSERT_EQ(mprotect(&ptr[7 * page_size], 3 * page_size,
+			   PROT_READ | PROT_WRITE), 0);
+
+	/* Make sure the whole range is still guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Split range into 3 again... */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ), 0);
+	ASSERT_EQ(mprotect(&ptr[7 * page_size], 3 * page_size, PROT_READ), 0);
+
+	/* ...and unguard the whole range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Make sure the whole range is remedied for read. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_buf(curr));
+	}
+
+	/* Merge them again. */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ | PROT_WRITE), 0);
+	ASSERT_EQ(mprotect(&ptr[7 * page_size], 3 * page_size,
+			   PROT_READ | PROT_WRITE), 0);
+
+	/* Now ensure the merged range is remedied for read/write. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Assert that MADV_DONTNEED does not remove guard markers. */
+TEST_F(guard_regions, dontneed)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Back the whole range. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		*curr = 'y';
+	}
+
+	/* Guard every other page. */
+	for (i = 0; i < 10; i += 2) {
+		char *curr = &ptr[i * page_size];
+		int res = madvise(curr, page_size, MADV_GUARD_INSTALL);
+
+		ASSERT_EQ(res, 0);
+	}
+
+	/* Indicate that we don't need any of the range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_DONTNEED), 0);
+
+	/* Check to ensure guard markers are still in place. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+		bool result = try_read_buf(curr);
+
+		if (i % 2 == 0) {
+			ASSERT_FALSE(result);
+		} else {
+			ASSERT_TRUE(result);
+			switch (variant->backing) {
+			case ANON_BACKED:
+				/* If anon, then we get a zero page. */
+				ASSERT_EQ(*curr, '\0');
+				break;
+			default:
+				/* Otherwise, we get the file data. */
+				ASSERT_EQ(*curr, 'y');
+				break;
+			}
+		}
+
+		/* Now write... */
+		result = try_write_buf(&ptr[i * page_size]);
+
+		/* ...and make sure same result. */
+		ASSERT_TRUE(i % 2 != 0 ? result : !result);
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Assert that mlock()'ed pages work correctly with guard markers. */
+TEST_F(guard_regions, mlock)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Populate. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		*curr = 'y';
+	}
+
+	/* Lock. */
+	ASSERT_EQ(mlock(ptr, 10 * page_size), 0);
+
+	/* Now try to guard, should fail with EINVAL. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), -1);
+	ASSERT_EQ(errno, EINVAL);
+
+	/* OK unlock. */
+	ASSERT_EQ(munlock(ptr, 10 * page_size), 0);
+
+	/* Guard first half of range, should now succeed. */
+	ASSERT_EQ(madvise(ptr, 5 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure guard works. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+		bool result = try_read_write_buf(curr);
+
+		if (i < 5) {
+			ASSERT_FALSE(result);
+		} else {
+			ASSERT_TRUE(result);
+			ASSERT_EQ(*curr, 'x');
+		}
+	}
+
+	/*
+	 * Now lock the latter part of the range. We can't lock the guard pages,
+	 * as this would result in the pages being populated and the guarding
+	 * would cause this to error out.
+	 */
+	ASSERT_EQ(mlock(&ptr[5 * page_size], 5 * page_size), 0);
+
+	/*
+	 * Now remove guard pages, we permit mlock()'d ranges to have guard
+	 * pages removed as it is a non-destructive operation.
+	 */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Now check that no guard pages remain. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Assert that moving, extending and shrinking memory via mremap() retains
+ * guard markers where possible.
+ *
+ * - Moving a mapping alone should retain markers as they are.
+ */
+TEST_F(guard_regions, mremap_move)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr, *ptr_new;
+
+	/* Map 5 pages. */
+	ptr = mmap_(self, variant, NULL, 5 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Place guard markers at both ends of the 5 page span. */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	ASSERT_EQ(madvise(&ptr[4 * page_size], page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the guard pages are in effect. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[4 * page_size]));
+
+	/* Map a new region we will move this range into. Doing this ensures
+	 * that we have reserved a range to map into.
+	 */
+	ptr_new = mmap_(self, variant, NULL, 5 * page_size, PROT_NONE, 0, 0);
+	ASSERT_NE(ptr_new, MAP_FAILED);
+
+	ASSERT_EQ(mremap(ptr, 5 * page_size, 5 * page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, ptr_new), ptr_new);
+
+	/* Make sure the guard markers are retained. */
+	ASSERT_FALSE(try_read_write_buf(ptr_new));
+	ASSERT_FALSE(try_read_write_buf(&ptr_new[4 * page_size]));
+
+	/*
+	 * Clean up - we only need reference the new pointer as we overwrote the
+	 * PROT_NONE range and moved the existing one.
+	 */
+	munmap(ptr_new, 5 * page_size);
+}
+
+/*
+ * Assert that moving, extending and shrinking memory via mremap() retains
+ * guard markers where possible.
+ *
+ * Expanding should retain guard pages, only now in different position. The user
+ * will have to remove guard pages manually to fix up (they'd have to do the
+ * same if it were a PROT_NONE mapping).
+ */
+TEST_F(guard_regions, mremap_expand)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr, *ptr_new;
+
+	/* Map 10 pages... */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/* ...But unmap the last 5 so we can ensure we can expand into them. */
+	ASSERT_EQ(munmap(&ptr[5 * page_size], 5 * page_size), 0);
+
+	/* Place guard markers at both ends of the 5 page span. */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	ASSERT_EQ(madvise(&ptr[4 * page_size], page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the guarding is in effect. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[4 * page_size]));
+
+	/* Now expand to 10 pages. */
+	ptr = mremap(ptr, 5 * page_size, 10 * page_size, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Make sure the guard markers are retained in their original positions.
+	 */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[4 * page_size]));
+
+	/* Reserve a region which we can move to and expand into. */
+	ptr_new = mmap_(self, variant, NULL, 20 * page_size, PROT_NONE, 0, 0);
+	ASSERT_NE(ptr_new, MAP_FAILED);
+
+	/* Now move and expand into it. */
+	ptr = mremap(ptr, 10 * page_size, 20 * page_size,
+		     MREMAP_MAYMOVE | MREMAP_FIXED, ptr_new);
+	ASSERT_EQ(ptr, ptr_new);
+
+	/*
+	 * Again, make sure the guard markers are retained in their original positions.
+	 */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[4 * page_size]));
+
+	/*
+	 * A real user would have to remove guard markers, but would reasonably
+	 * expect all characteristics of the mapping to be retained, including
+	 * guard markers.
+	 */
+
+	/* Cleanup. */
+	munmap(ptr, 20 * page_size);
+}
+/*
+ * Assert that moving, extending and shrinking memory via mremap() retains
+ * guard markers where possible.
+ *
+ * Shrinking will result in markers that are shrunk over being removed. Again,
+ * if the user were using a PROT_NONE mapping they'd have to manually fix this
+ * up also so this is OK.
+ */
+TEST_F(guard_regions, mremap_shrink)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	/* Map 5 pages. */
+	ptr = mmap_(self, variant, NULL, 5 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Place guard markers at both ends of the 5 page span. */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	ASSERT_EQ(madvise(&ptr[4 * page_size], page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Make sure the guarding is in effect. */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+	ASSERT_FALSE(try_read_write_buf(&ptr[4 * page_size]));
+
+	/* Now shrink to 3 pages. */
+	ptr = mremap(ptr, 5 * page_size, 3 * page_size, MREMAP_MAYMOVE);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* We expect the guard marker at the start to be retained... */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+
+	/* ...But remaining pages will not have guard markers. */
+	for (i = 1; i < 3; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/*
+	 * As with expansion, a real user would have to remove guard pages and
+	 * fixup. But you'd have to do similar manual things with PROT_NONE
+	 * mappings too.
+	 */
+
+	/*
+	 * If we expand back to the original size, the end marker will, of
+	 * course, no longer be present.
+	 */
+	ptr = mremap(ptr, 3 * page_size, 5 * page_size, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Again, we expect the guard marker at the start to be retained... */
+	ASSERT_FALSE(try_read_write_buf(ptr));
+
+	/* ...But remaining pages will not have guard markers. */
+	for (i = 1; i < 5; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	munmap(ptr, 5 * page_size);
+}
+
+/*
+ * Assert that forking a process with VMAs that do not have VM_WIPEONFORK set
+ * retain guard pages.
+ */
+TEST_F(guard_regions, fork)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	pid_t pid;
+	int i;
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Establish guard pages in the first 5 pages. */
+	ASSERT_EQ(madvise(ptr, 5 * page_size, MADV_GUARD_INSTALL), 0);
+
+	pid = fork();
+	ASSERT_NE(pid, -1);
+	if (!pid) {
+		/* This is the child process now. */
+
+		/* Assert that the guarding is in effect. */
+		for (i = 0; i < 10; i++) {
+			char *curr = &ptr[i * page_size];
+			bool result = try_read_write_buf(curr);
+
+			ASSERT_TRUE(i >= 5 ? result : !result);
+		}
+
+		/* Now unguard the range.*/
+		ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+		exit(0);
+	}
+
+	/* Parent process. */
+
+	/* Parent simply waits on child. */
+	waitpid(pid, NULL, 0);
+
+	/* Child unguard does not impact parent page table state. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+		bool result = try_read_write_buf(curr);
+
+		ASSERT_TRUE(i >= 5 ? result : !result);
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Assert expected behaviour after we fork populated ranges of anonymous memory
+ * and then guard and unguard the range.
+ */
+TEST_F(guard_regions, fork_cow)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	pid_t pid;
+	int i;
+
+	if (variant->backing != ANON_BACKED)
+		SKIP(return, "CoW only supported on anon mappings");
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Populate range. */
+	for (i = 0; i < 10 * page_size; i++) {
+		char chr = 'a' + (i % 26);
+
+		ptr[i] = chr;
+	}
+
+	pid = fork();
+	ASSERT_NE(pid, -1);
+	if (!pid) {
+		/* This is the child process now. */
+
+		/* Ensure the range is as expected. */
+		for (i = 0; i < 10 * page_size; i++) {
+			char expected = 'a' + (i % 26);
+			char actual = ptr[i];
+
+			ASSERT_EQ(actual, expected);
+		}
+
+		/* Establish guard pages across the whole range. */
+		ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+		/* Remove it. */
+		ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+		/*
+		 * By removing the guard pages, the page tables will be
+		 * cleared. Assert that we are looking at the zero page now.
+		 */
+		for (i = 0; i < 10 * page_size; i++) {
+			char actual = ptr[i];
+
+			ASSERT_EQ(actual, '\0');
+		}
+
+		exit(0);
+	}
+
+	/* Parent process. */
+
+	/* Parent simply waits on child. */
+	waitpid(pid, NULL, 0);
+
+	/* Ensure the range is unchanged in parent anon range. */
+	for (i = 0; i < 10 * page_size; i++) {
+		char expected = 'a' + (i % 26);
+		char actual = ptr[i];
+
+		ASSERT_EQ(actual, expected);
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Assert that forking a process with VMAs that do have VM_WIPEONFORK set
+ * behave as expected.
+ */
+TEST_F(guard_regions, fork_wipeonfork)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	pid_t pid;
+	int i;
+
+	if (variant->backing != ANON_BACKED)
+		SKIP(return, "Wipe on fork only supported on anon mappings");
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Mark wipe on fork. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_WIPEONFORK), 0);
+
+	/* Guard the first 5 pages. */
+	ASSERT_EQ(madvise(ptr, 5 * page_size, MADV_GUARD_INSTALL), 0);
+
+	pid = fork();
+	ASSERT_NE(pid, -1);
+	if (!pid) {
+		/* This is the child process now. */
+
+		/* Guard will have been wiped. */
+		for (i = 0; i < 10; i++) {
+			char *curr = &ptr[i * page_size];
+
+			ASSERT_TRUE(try_read_write_buf(curr));
+		}
+
+		exit(0);
+	}
+
+	/* Parent process. */
+
+	waitpid(pid, NULL, 0);
+
+	/* Guard markers should be in effect.*/
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+		bool result = try_read_write_buf(curr);
+
+		ASSERT_TRUE(i >= 5 ? result : !result);
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Ensure that MADV_FREE retains guard entries as expected. */
+TEST_F(guard_regions, lazyfree)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing != ANON_BACKED)
+		SKIP(return, "MADV_FREE only supported on anon mappings");
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Ensure guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Lazyfree range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_FREE), 0);
+
+	/* This should leave the guard markers in place. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Ensure that MADV_POPULATE_READ, MADV_POPULATE_WRITE behave as expected. */
+TEST_F(guard_regions, populate)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Populate read should error out... */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_POPULATE_READ), -1);
+	ASSERT_EQ(errno, EFAULT);
+
+	/* ...as should populate write. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_POPULATE_WRITE), -1);
+	ASSERT_EQ(errno, EFAULT);
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Ensure that MADV_COLD, MADV_PAGEOUT do not remove guard markers. */
+TEST_F(guard_regions, cold_pageout)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Guard range. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Ensured guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Now mark cold. This should have no impact on guard markers. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_COLD), 0);
+
+	/* Should remain guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* OK, now page out. This should equally, have no effect on markers. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_PAGEOUT), 0);
+
+	/* Should remain guarded. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/* Ensure that guard pages do not break userfaultd. */
+TEST_F(guard_regions, uffd)
+{
+	const unsigned long page_size = self->page_size;
+	int uffd;
+	char *ptr;
+	int i;
+	struct uffdio_api api = {
+		.api = UFFD_API,
+		.features = 0,
+	};
+	struct uffdio_register reg;
+	struct uffdio_range range;
+
+	if (!is_anon_backed(variant))
+		SKIP(return, "uffd only works on anon backing");
+
+	/* Set up uffd. */
+	uffd = userfaultfd(0);
+	if (uffd == -1) {
+		switch (errno) {
+		case EPERM:
+			SKIP(return, "No userfaultfd permissions, try running as root.");
+			break;
+		case ENOSYS:
+			SKIP(return, "userfaultfd is not supported/not enabled.");
+			break;
+		default:
+			ksft_exit_fail_msg("userfaultfd failed with %s\n",
+					   strerror(errno));
+			break;
+		}
+	}
+
+	ASSERT_NE(uffd, -1);
+
+	ASSERT_EQ(ioctl(uffd, UFFDIO_API, &api), 0);
+
+	/* Map 10 pages. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Register the range with uffd. */
+	range.start = (unsigned long)ptr;
+	range.len = 10 * page_size;
+	reg.range = range;
+	reg.mode = UFFDIO_REGISTER_MODE_MISSING;
+	ASSERT_EQ(ioctl(uffd, UFFDIO_REGISTER, &reg), 0);
+
+	/* Guard the range. This should not trigger the uffd. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/* The guarding should behave as usual with no uffd intervention. */
+	for (i = 0; i < 10; i++) {
+		char *curr = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_read_write_buf(curr));
+	}
+
+	/* Cleanup. */
+	ASSERT_EQ(ioctl(uffd, UFFDIO_UNREGISTER, &range), 0);
+	close(uffd);
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Mark a region within a file-backed mapping using MADV_SEQUENTIAL so we
+ * aggressively read-ahead, then install guard regions and assert that it
+ * behaves correctly.
+ *
+ * We page out using MADV_PAGEOUT before checking guard regions so we drop page
+ * cache folios, meaning we maximise the possibility of some broken readahead.
+ */
+TEST_F(guard_regions, madvise_sequential)
+{
+	char *ptr;
+	int i;
+	const unsigned long page_size = self->page_size;
+
+	if (variant->backing == ANON_BACKED)
+		SKIP(return, "MADV_SEQUENTIAL meaningful only for file-backed");
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Establish a pattern of data in the file. */
+	set_pattern(ptr, 10, page_size);
+	ASSERT_TRUE(check_pattern(ptr, 10, page_size));
+
+	/* Mark it as being accessed sequentially. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_SEQUENTIAL), 0);
+
+	/* Mark every other page a guard page. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr2 = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr2, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Now page it out. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_PAGEOUT), 0);
+
+	/* Now make sure pages are as expected. */
+	for (i = 0; i < 10; i++) {
+		char *chrp = &ptr[i * page_size];
+
+		if (i % 2 == 0) {
+			bool result = try_read_write_buf(chrp);
+
+			ASSERT_FALSE(result);
+		} else {
+			ASSERT_EQ(*chrp, 'a' + i);
+		}
+	}
+
+	/* Now remove guard pages. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Now make sure all data is as expected. */
+	if (!check_pattern(ptr, 10, page_size))
+		ASSERT_TRUE(false);
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Check that file-backed mappings implement guard regions with MAP_PRIVATE
+ * correctly.
+ */
+TEST_F(guard_regions, map_private)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr_shared, *ptr_private;
+	int i;
+
+	if (variant->backing == ANON_BACKED)
+		SKIP(return, "MAP_PRIVATE test specific to file-backed");
+
+	ptr_shared = mmap_(self, variant, NULL, 10 * page_size, PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr_shared, MAP_FAILED);
+
+	/* Manually mmap(), do not use mmap_() wrapper so we can force MAP_PRIVATE. */
+	ptr_private = mmap(NULL, 10 * page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, self->fd, 0);
+	ASSERT_NE(ptr_private, MAP_FAILED);
+
+	/* Set pattern in shared mapping. */
+	set_pattern(ptr_shared, 10, page_size);
+
+	/* Install guard regions in every other page in the shared mapping. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr = &ptr_shared[i * page_size];
+
+		ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	for (i = 0; i < 10; i++) {
+		/* Every even shared page should be guarded. */
+		ASSERT_EQ(try_read_buf(&ptr_shared[i * page_size]), i % 2 != 0);
+		/* Private mappings should always be readable. */
+		ASSERT_TRUE(try_read_buf(&ptr_private[i * page_size]));
+	}
+
+	/* Install guard regions in every other page in the private mapping. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr = &ptr_private[i * page_size];
+
+		ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	for (i = 0; i < 10; i++) {
+		/* Every even shared page should be guarded. */
+		ASSERT_EQ(try_read_buf(&ptr_shared[i * page_size]), i % 2 != 0);
+		/* Every odd private page should be guarded. */
+		ASSERT_EQ(try_read_buf(&ptr_private[i * page_size]), i % 2 != 0);
+	}
+
+	/* Remove guard regions from shared mapping. */
+	ASSERT_EQ(madvise(ptr_shared, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	for (i = 0; i < 10; i++) {
+		/* Shared mappings should always be readable. */
+		ASSERT_TRUE(try_read_buf(&ptr_shared[i * page_size]));
+		/* Every even private page should be guarded. */
+		ASSERT_EQ(try_read_buf(&ptr_private[i * page_size]), i % 2 != 0);
+	}
+
+	/* Remove guard regions from private mapping. */
+	ASSERT_EQ(madvise(ptr_private, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	for (i = 0; i < 10; i++) {
+		/* Shared mappings should always be readable. */
+		ASSERT_TRUE(try_read_buf(&ptr_shared[i * page_size]));
+		/* Private mappings should always be readable. */
+		ASSERT_TRUE(try_read_buf(&ptr_private[i * page_size]));
+	}
+
+	/* Ensure patterns are intact. */
+	ASSERT_TRUE(check_pattern(ptr_shared, 10, page_size));
+	ASSERT_TRUE(check_pattern(ptr_private, 10, page_size));
+
+	/* Now write out every other page to MAP_PRIVATE. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr = &ptr_private[i * page_size];
+
+		memset(ptr, 'a' + i, page_size);
+	}
+
+	/*
+	 * At this point the mapping is:
+	 *
+	 * 0123456789
+	 * SPSPSPSPSP
+	 *
+	 * Where S = shared, P = private mappings.
+	 */
+
+	/* Now mark the beginning of the mapping guarded. */
+	ASSERT_EQ(madvise(ptr_private, 5 * page_size, MADV_GUARD_INSTALL), 0);
+
+	/*
+	 * This renders the mapping:
+	 *
+	 * 0123456789
+	 * xxxxxPSPSP
+	 */
+
+	for (i = 0; i < 10; i++) {
+		char *ptr = &ptr_private[i * page_size];
+
+		/* Ensure guard regions as expected. */
+		ASSERT_EQ(try_read_buf(ptr), i >= 5);
+		/* The shared mapping should always succeed. */
+		ASSERT_TRUE(try_read_buf(&ptr_shared[i * page_size]));
+	}
+
+	/* Remove the guard regions altogether. */
+	ASSERT_EQ(madvise(ptr_private, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/*
+	 *
+	 * We now expect the mapping to be:
+	 *
+	 * 0123456789
+	 * SSSSSPSPSP
+	 *
+	 * As we removed guard regions, the private pages from the first 5 will
+	 * have been zapped, so on fault will reestablish the shared mapping.
+	 */
+
+	for (i = 0; i < 10; i++) {
+		char *ptr = &ptr_private[i * page_size];
+
+		/*
+		 * Assert that shared mappings in the MAP_PRIVATE mapping match
+		 * the shared mapping.
+		 */
+		if (i < 5 || i % 2 == 0) {
+			char *ptr_s = &ptr_shared[i * page_size];
+
+			ASSERT_EQ(memcmp(ptr, ptr_s, page_size), 0);
+			continue;
+		}
+
+		/* Everything else is a private mapping. */
+		ASSERT_TRUE(is_buf_eq(ptr, page_size, 'a' + i));
+	}
+
+	ASSERT_EQ(munmap(ptr_shared, 10 * page_size), 0);
+	ASSERT_EQ(munmap(ptr_private, 10 * page_size), 0);
+}
+
+/* Test that guard regions established over a read-only mapping function correctly. */
+TEST_F(guard_regions, readonly_file)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing != LOCAL_FILE_BACKED)
+		SKIP(return, "Read-only test specific to file-backed");
+
+	/* Map shared so we can populate with pattern, populate it, unmap. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	set_pattern(ptr, 10, page_size);
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+	/* Close the fd so we can re-open read-only. */
+	ASSERT_EQ(close(self->fd), 0);
+
+	/* Re-open read-only. */
+	self->fd = open(self->path, O_RDONLY);
+	ASSERT_NE(self->fd, -1);
+	/* Re-map read-only. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Mark every other page guarded. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_pg = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_pg, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Assert that the guard regions are in place.*/
+	for (i = 0; i < 10; i++) {
+		char *ptr_pg = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_pg), i % 2 != 0);
+	}
+
+	/* Remove guard regions. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Ensure the data is as expected. */
+	ASSERT_TRUE(check_pattern(ptr, 10, page_size));
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+TEST_F(guard_regions, fault_around)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing == ANON_BACKED)
+		SKIP(return, "Fault-around test specific to file-backed");
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Establish a pattern in the backing file. */
+	set_pattern(ptr, 10, page_size);
+
+	/*
+	 * Now drop it from the page cache so we get major faults when next we
+	 * map it.
+	 */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_PAGEOUT), 0);
+
+	/* Unmap and remap 'to be sure'. */
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Now make every even page guarded. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Now fault in every odd page. This should trigger fault-around. */
+	for (i = 1; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_buf(ptr_p));
+	}
+
+	/* Finally, ensure that guard regions are intact as expected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_p), i % 2 != 0);
+	}
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+TEST_F(guard_regions, truncation)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing == ANON_BACKED)
+		SKIP(return, "Truncation test specific to file-backed");
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Establish a pattern in the backing file, just so there is data
+	 * there.
+	 */
+	set_pattern(ptr, 10, page_size);
+
+	/* Now make every even page guarded. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Now assert things are as expected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_write_buf(ptr_p), i % 2 != 0);
+	}
+
+	/* Now truncate to actually used size (initialised to 100). */
+	ASSERT_EQ(ftruncate(self->fd, 10 * page_size), 0);
+
+	/* Here the guard regions will remain intact. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_write_buf(ptr_p), i % 2 != 0);
+	}
+
+	/* Now truncate to half the size, then truncate again to the full size. */
+	ASSERT_EQ(ftruncate(self->fd, 5 * page_size), 0);
+	ASSERT_EQ(ftruncate(self->fd, 10 * page_size), 0);
+
+	/* Again, guard pages will remain intact. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_write_buf(ptr_p), i % 2 != 0);
+	}
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+TEST_F(guard_regions, hole_punch)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing == ANON_BACKED)
+		SKIP(return, "Truncation test specific to file-backed");
+
+	/* Establish pattern in mapping. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	set_pattern(ptr, 10, page_size);
+
+	/* Install a guard region in the middle of the mapping. */
+	ASSERT_EQ(madvise(&ptr[3 * page_size], 4 * page_size,
+			  MADV_GUARD_INSTALL), 0);
+
+	/*
+	 * The buffer will now be:
+	 *
+	 * 0123456789
+	 * ***xxxx***
+	 *
+	 * Where * is data and x is the guard region.
+	 */
+
+	/* Ensure established. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_p), i < 3 || i >= 7);
+	}
+
+	/* Now hole punch the guarded region. */
+	ASSERT_EQ(madvise(&ptr[3 * page_size], 4 * page_size,
+			  MADV_REMOVE), 0);
+
+	/* Ensure guard regions remain. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_p), i < 3 || i >= 7);
+	}
+
+	/* Now remove guard region throughout. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Check that the pattern exists in non-hole punched region. */
+	ASSERT_TRUE(check_pattern(ptr, 3, page_size));
+	/* Check that hole punched region is zeroed. */
+	ASSERT_TRUE(is_buf_eq(&ptr[3 * page_size], 4 * page_size, '\0'));
+	/* Check that the pattern exists in the remainder of the file. */
+	ASSERT_TRUE(check_pattern_offset(ptr, 3, page_size, 7));
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Ensure that a memfd works correctly with guard regions, that we can write
+ * seal it then open the mapping read-only and still establish guard regions
+ * within, remove those guard regions and have everything work correctly.
+ */
+TEST_F(guard_regions, memfd_write_seal)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (variant->backing != SHMEM_BACKED)
+		SKIP(return, "memfd write seal test specific to shmem");
+
+	/* OK, we need a memfd, so close existing one. */
+	ASSERT_EQ(close(self->fd), 0);
+
+	/* Create and truncate memfd. */
+	self->fd = memfd_create("guard_regions_memfd_seals_test",
+				MFD_ALLOW_SEALING);
+	ASSERT_NE(self->fd, -1);
+	ASSERT_EQ(ftruncate(self->fd, 10 * page_size), 0);
+
+	/* Map, set pattern, unmap. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	set_pattern(ptr, 10, page_size);
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+
+	/* Write-seal the memfd. */
+	ASSERT_EQ(fcntl(self->fd, F_ADD_SEALS, F_SEAL_WRITE), 0);
+
+	/* Now map the memfd readonly. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Ensure pattern is as expected. */
+	ASSERT_TRUE(check_pattern(ptr, 10, page_size));
+
+	/* Now make every even page guarded. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Now assert things are as expected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_p), i % 2 != 0);
+	}
+
+	/* Now remove guard regions. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Ensure pattern is as expected. */
+	ASSERT_TRUE(check_pattern(ptr, 10, page_size));
+
+	/* Ensure write seal intact. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_FALSE(try_write_buf(ptr_p));
+	}
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+
+/*
+ * Since we are now permitted to establish guard regions in read-only anonymous
+ * mappings, for the sake of thoroughness, though it probably has no practical
+ * use, test that guard regions function with a mapping to the anonymous zero
+ * page.
+ */
+TEST_F(guard_regions, anon_zeropage)
+{
+	const unsigned long page_size = self->page_size;
+	char *ptr;
+	int i;
+
+	if (!is_anon_backed(variant))
+		SKIP(return, "anon zero page test specific to anon/shmem");
+
+	/* Obtain a read-only i.e. anon zero page mapping. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Now make every even page guarded. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Now assert things are as expected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(try_read_buf(ptr_p), i % 2 != 0);
+	}
+
+	/* Now remove all guard regions. */
+	ASSERT_EQ(madvise(ptr, 10 * page_size, MADV_GUARD_REMOVE), 0);
+
+	/* Now assert things are as expected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_TRUE(try_read_buf(ptr_p));
+	}
+
+	/* Ensure zero page...*/
+	ASSERT_TRUE(is_buf_eq(ptr, 10 * page_size, '\0'));
+
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Assert that /proc/$pid/pagemap correctly identifies guard region ranges.
+ */
+TEST_F(guard_regions, pagemap)
+{
+	const unsigned long page_size = self->page_size;
+	int proc_fd;
+	char *ptr;
+	int i;
+
+	proc_fd = open("/proc/self/pagemap", O_RDONLY);
+	ASSERT_NE(proc_fd, -1);
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Read from pagemap, and assert no guard regions are detected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+		unsigned long entry = pagemap_get_entry(proc_fd, ptr_p);
+		unsigned long masked = entry & PM_GUARD_REGION;
+
+		ASSERT_EQ(masked, 0);
+	}
+
+	/* Install a guard region in every other page. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/* Re-read from pagemap, and assert guard regions are detected. */
+	for (i = 0; i < 10; i++) {
+		char *ptr_p = &ptr[i * page_size];
+		unsigned long entry = pagemap_get_entry(proc_fd, ptr_p);
+		unsigned long masked = entry & PM_GUARD_REGION;
+
+		ASSERT_EQ(masked, i % 2 == 0 ? PM_GUARD_REGION : 0);
+	}
+
+	ASSERT_EQ(close(proc_fd), 0);
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+/*
+ * Assert that PAGEMAP_SCAN correctly reports guard region ranges.
+ */
+TEST_F(guard_regions, pagemap_scan)
+{
+	const unsigned long page_size = self->page_size;
+	struct page_region pm_regs[10];
+	struct pm_scan_arg pm_scan_args = {
+		.size = sizeof(struct pm_scan_arg),
+		.category_anyof_mask = PAGE_IS_GUARD,
+		.return_mask = PAGE_IS_GUARD,
+		.vec = (long)&pm_regs,
+		.vec_len = ARRAY_SIZE(pm_regs),
+	};
+	int proc_fd, i;
+	char *ptr;
+
+	proc_fd = open("/proc/self/pagemap", O_RDONLY);
+	ASSERT_NE(proc_fd, -1);
+
+	ptr = mmap_(self, variant, NULL, 10 * page_size,
+		    PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	pm_scan_args.start = (long)ptr;
+	pm_scan_args.end = (long)ptr + 10 * page_size;
+	ASSERT_EQ(ioctl(proc_fd, PAGEMAP_SCAN, &pm_scan_args), 0);
+	ASSERT_EQ(pm_scan_args.walk_end, (long)ptr + 10 * page_size);
+
+	/* Install a guard region in every other page. */
+	for (i = 0; i < 10; i += 2) {
+		char *ptr_p = &ptr[i * page_size];
+
+		ASSERT_EQ(syscall(__NR_madvise, ptr_p, page_size, MADV_GUARD_INSTALL), 0);
+	}
+
+	/*
+	 * Assert ioctl() returns the count of located regions, where each
+	 * region spans every other page within the range of 10 pages.
+	 */
+	ASSERT_EQ(ioctl(proc_fd, PAGEMAP_SCAN, &pm_scan_args), 5);
+	ASSERT_EQ(pm_scan_args.walk_end, (long)ptr + 10 * page_size);
+
+	/* Re-read from pagemap, and assert guard regions are detected. */
+	for (i = 0; i < 5; i++) {
+		long ptr_p = (long)&ptr[2 * i * page_size];
+
+		ASSERT_EQ(pm_regs[i].start, ptr_p);
+		ASSERT_EQ(pm_regs[i].end, ptr_p + page_size);
+		ASSERT_EQ(pm_regs[i].categories, PAGE_IS_GUARD);
+	}
+
+	ASSERT_EQ(close(proc_fd), 0);
+	ASSERT_EQ(munmap(ptr, 10 * page_size), 0);
+}
+
+TEST_F(guard_regions, collapse)
+{
+	const unsigned long page_size = self->page_size;
+	const unsigned long size = 2 * HPAGE_SIZE;
+	const unsigned long num_pages = size / page_size;
+	char *ptr;
+	int i;
+
+	/* Need file to be correct size for tests for non-anon. */
+	if (variant->backing != ANON_BACKED)
+		ASSERT_EQ(ftruncate(self->fd, size), 0);
+
+	/*
+	 * We must close and re-open local-file backed as read-only for
+	 * CONFIG_READ_ONLY_THP_FOR_FS to work.
+	 */
+	if (variant->backing == LOCAL_FILE_BACKED) {
+		ASSERT_EQ(close(self->fd), 0);
+
+		self->fd = open(self->path, O_RDONLY);
+		ASSERT_GE(self->fd, 0);
+	}
+
+	ptr = mmap_(self, variant, NULL, size, PROT_READ, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* Prevent being faulted-in as huge. */
+	ASSERT_EQ(madvise(ptr, size, MADV_NOHUGEPAGE), 0);
+	/* Fault in. */
+	ASSERT_EQ(madvise(ptr, size, MADV_POPULATE_READ), 0);
+
+	/* Install guard regions in ever other page. */
+	for (i = 0; i < num_pages; i += 2) {
+		char *ptr_page = &ptr[i * page_size];
+
+		ASSERT_EQ(madvise(ptr_page, page_size, MADV_GUARD_INSTALL), 0);
+		/* Accesses should now fail. */
+		ASSERT_FALSE(try_read_buf(ptr_page));
+	}
+
+	/* Allow huge page throughout region. */
+	ASSERT_EQ(madvise(ptr, size, MADV_HUGEPAGE), 0);
+
+	/*
+	 * Now collapse the entire region. This should fail in all cases.
+	 *
+	 * The madvise() call will also fail if CONFIG_READ_ONLY_THP_FOR_FS is
+	 * not set for the local file case, but we can't differentiate whether
+	 * this occurred or if the collapse was rightly rejected.
+	 */
+	EXPECT_NE(madvise(ptr, size, MADV_COLLAPSE), 0);
+
+	/*
+	 * If we introduce a bug that causes the collapse to succeed, gather
+	 * data on whether guard regions are at least preserved. The test will
+	 * fail at this point in any case.
+	 */
+	for (i = 0; i < num_pages; i += 2) {
+		char *ptr_page = &ptr[i * page_size];
+
+		/* Accesses should still fail. */
+		ASSERT_FALSE(try_read_buf(ptr_page));
+	}
+}
+
+TEST_F(guard_regions, smaps)
+{
+	const unsigned long page_size = self->page_size;
+	struct procmap_fd procmap;
+	char *ptr, *ptr2;
+	int i;
+
+	/* Map a region. */
+	ptr = mmap_(self, variant, NULL, 10 * page_size, PROT_READ | PROT_WRITE, 0, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/* We shouldn't yet see a guard flag. */
+	ASSERT_FALSE(check_vmflag_guard(ptr));
+
+	/* Install a single guard region. */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_INSTALL), 0);
+
+	/* Now we should see a guard flag. */
+	ASSERT_TRUE(check_vmflag_guard(ptr));
+
+	/*
+	 * Removing the guard region should not change things because we simply
+	 * cannot accurately track whether a given VMA has had all of its guard
+	 * regions removed.
+	 */
+	ASSERT_EQ(madvise(ptr, page_size, MADV_GUARD_REMOVE), 0);
+	ASSERT_TRUE(check_vmflag_guard(ptr));
+
+	/* Install guard regions throughout. */
+	for (i = 0; i < 10; i++) {
+		ASSERT_EQ(madvise(&ptr[i * page_size], page_size, MADV_GUARD_INSTALL), 0);
+		/* We should always see the guard region flag. */
+		ASSERT_TRUE(check_vmflag_guard(ptr));
+	}
+
+	/* Split into two VMAs. */
+	ASSERT_EQ(munmap(&ptr[4 * page_size], page_size), 0);
+
+	/* Both VMAs should have the guard flag set. */
+	ASSERT_TRUE(check_vmflag_guard(ptr));
+	ASSERT_TRUE(check_vmflag_guard(&ptr[5 * page_size]));
+
+	/*
+	 * If the local file system is unable to merge VMAs due to having
+	 * unusual characteristics, there is no point in asserting merge
+	 * behaviour.
+	 */
+	if (!local_fs_has_sane_mmap(self, variant)) {
+		TH_LOG("local filesystem does not support sane merging skipping merge test");
+		return;
+	}
+
+	/* Map a fresh VMA between the two split VMAs. */
+	ptr2 = mmap_(self, variant, &ptr[4 * page_size], page_size,
+		     PROT_READ | PROT_WRITE, MAP_FIXED, 4 * page_size);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Check the procmap to ensure that this VMA merged with the adjacent
+	 * two. The guard region flag is 'sticky' so should not preclude
+	 * merging.
+	 */
+	ASSERT_EQ(open_self_procmap(&procmap), 0);
+	ASSERT_TRUE(find_vma_procmap(&procmap, ptr));
+	ASSERT_EQ(procmap.query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap.query.vma_end, (unsigned long)ptr + 10 * page_size);
+	ASSERT_EQ(close_procmap(&procmap), 0);
+	/* And, of course, this VMA should have the guard flag set. */
+	ASSERT_TRUE(check_vmflag_guard(ptr));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/gup_longterm.c b/tools/testing/selftests/mm/gup_longterm.c
new file mode 100644
index 000000000000..6279893a0adc
--- /dev/null
+++ b/tools/testing/selftests/mm/gup_longterm.c
@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * GUP long-term page pinning tests.
+ *
+ * Copyright 2023, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/vfs.h>
+#include <linux/magic.h>
+#include <linux/memfd.h>
+
+#include "local_config.h"
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+#include <liburing.h>
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+
+#include "../../../../mm/gup_test.h"
+#include "kselftest.h"
+#include "vm_util.h"
+
+static size_t pagesize;
+static int nr_hugetlbsizes;
+static size_t hugetlbsizes[10];
+static int gup_fd;
+
+static __fsword_t get_fs_type(int fd)
+{
+	struct statfs fs;
+	int ret;
+
+	do {
+		ret = fstatfs(fd, &fs);
+	} while (ret && errno == EINTR);
+
+	return ret ? 0 : fs.f_type;
+}
+
+static bool fs_is_unknown(__fsword_t fs_type)
+{
+	/*
+	 * We only support some filesystems in our tests when dealing with
+	 * R/W long-term pinning. For these filesystems, we can be fairly sure
+	 * whether they support it or not.
+	 */
+	switch (fs_type) {
+	case TMPFS_MAGIC:
+	case HUGETLBFS_MAGIC:
+	case BTRFS_SUPER_MAGIC:
+	case EXT4_SUPER_MAGIC:
+	case XFS_SUPER_MAGIC:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static bool fs_supports_writable_longterm_pinning(__fsword_t fs_type)
+{
+	assert(!fs_is_unknown(fs_type));
+	switch (fs_type) {
+	case TMPFS_MAGIC:
+	case HUGETLBFS_MAGIC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+enum test_type {
+	TEST_TYPE_RO,
+	TEST_TYPE_RO_FAST,
+	TEST_TYPE_RW,
+	TEST_TYPE_RW_FAST,
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+	TEST_TYPE_IOURING,
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+};
+
+static void do_test(int fd, size_t size, enum test_type type, bool shared)
+{
+	__fsword_t fs_type = get_fs_type(fd);
+	bool should_work;
+	char *mem;
+	int result = KSFT_PASS;
+	int ret;
+
+	if (fd < 0) {
+		result = KSFT_FAIL;
+		goto report;
+	}
+
+	if (ftruncate(fd, size)) {
+		if (errno == ENOENT) {
+			skip_test_dodgy_fs("ftruncate()");
+		} else {
+			ksft_print_msg("ftruncate() failed (%s)\n",
+				       strerror(errno));
+			result = KSFT_FAIL;
+			goto report;
+		}
+		return;
+	}
+
+	if (fallocate(fd, 0, 0, size)) {
+		/*
+		 * Some filesystems (eg, NFSv3) don't support
+		 * fallocate(), report this as a skip rather than a
+		 * test failure.
+		 */
+		if (errno == EOPNOTSUPP) {
+			ksft_print_msg("fallocate() not supported by filesystem\n");
+			result = KSFT_SKIP;
+		} else if (size == pagesize) {
+			ksft_print_msg("fallocate() failed (%s)\n", strerror(errno));
+			result = KSFT_FAIL;
+		} else {
+			ksft_print_msg("need more free huge pages\n");
+			result = KSFT_SKIP;
+		}
+		goto report;
+	}
+
+	mem = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		   shared ? MAP_SHARED : MAP_PRIVATE, fd, 0);
+	if (mem == MAP_FAILED) {
+		if (size == pagesize || shared) {
+			ksft_print_msg("mmap() failed (%s)\n", strerror(errno));
+			result = KSFT_FAIL;
+		} else {
+			ksft_print_msg("need more free huge pages\n");
+			result = KSFT_SKIP;
+		}
+		goto report;
+	}
+
+	/* Fault in the page such that GUP-fast can pin it directly. */
+	memset(mem, 0, size);
+
+	switch (type) {
+	case TEST_TYPE_RO:
+	case TEST_TYPE_RO_FAST:
+		/*
+		 * Cover more cases regarding unsharing decisions when
+		 * long-term R/O pinning by mapping the page R/O.
+		 */
+		ret = mprotect(mem, size, PROT_READ);
+		if (ret) {
+			ksft_print_msg("mprotect() failed (%s)\n", strerror(errno));
+			result = KSFT_FAIL;
+			goto munmap;
+		}
+		/* FALLTHROUGH */
+	case TEST_TYPE_RW:
+	case TEST_TYPE_RW_FAST: {
+		struct pin_longterm_test args;
+		const bool fast = type == TEST_TYPE_RO_FAST ||
+				  type == TEST_TYPE_RW_FAST;
+		const bool rw = type == TEST_TYPE_RW ||
+				type == TEST_TYPE_RW_FAST;
+
+		if (gup_fd < 0) {
+			ksft_print_msg("gup_test not available\n");
+			result = KSFT_SKIP;
+			break;
+		}
+
+		if (rw && shared && fs_is_unknown(fs_type)) {
+			ksft_print_msg("Unknown filesystem\n");
+			result = KSFT_SKIP;
+			return;
+		}
+		/*
+		 * R/O pinning or pinning in a private mapping is always
+		 * expected to work. Otherwise, we expect long-term R/W pinning
+		 * to only succeed for special filesystems.
+		 */
+		should_work = !shared || !rw ||
+			      fs_supports_writable_longterm_pinning(fs_type);
+
+		args.addr = (__u64)(uintptr_t)mem;
+		args.size = size;
+		args.flags = fast ? PIN_LONGTERM_TEST_FLAG_USE_FAST : 0;
+		args.flags |= rw ? PIN_LONGTERM_TEST_FLAG_USE_WRITE : 0;
+		ret = ioctl(gup_fd, PIN_LONGTERM_TEST_START, &args);
+		if (ret && errno == EINVAL) {
+			ksft_print_msg("PIN_LONGTERM_TEST_START failed (EINVAL)n");
+			result = KSFT_SKIP;
+			break;
+		} else if (ret && errno == EFAULT) {
+			if (should_work)
+				result = KSFT_FAIL;
+			else
+				result = KSFT_PASS;
+			break;
+		} else if (ret) {
+			ksft_print_msg("PIN_LONGTERM_TEST_START failed (%s)\n",
+				       strerror(errno));
+			result = KSFT_FAIL;
+			break;
+		}
+
+		if (ioctl(gup_fd, PIN_LONGTERM_TEST_STOP))
+			ksft_print_msg("[INFO] PIN_LONGTERM_TEST_STOP failed (%s)\n",
+				       strerror(errno));
+
+		/*
+		 * TODO: if the kernel ever supports long-term R/W pinning on
+		 * some previously unsupported filesystems, we might want to
+		 * perform some additional tests for possible data corruptions.
+		 */
+		if (should_work)
+			result = KSFT_PASS;
+		else
+			result = KSFT_FAIL;
+		break;
+	}
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+	case TEST_TYPE_IOURING: {
+		struct io_uring ring;
+		struct iovec iov;
+
+		/* io_uring always pins pages writable. */
+		if (shared && fs_is_unknown(fs_type)) {
+			ksft_print_msg("Unknown filesystem\n");
+			result = KSFT_SKIP;
+			goto report;
+		}
+		should_work = !shared ||
+			      fs_supports_writable_longterm_pinning(fs_type);
+
+		/* Skip on errors, as we might just lack kernel support. */
+		ret = io_uring_queue_init(1, &ring, 0);
+		if (ret < 0) {
+			ksft_print_msg("io_uring_queue_init() failed (%s)\n",
+				       strerror(-ret));
+			result = KSFT_SKIP;
+			break;
+		}
+		/*
+		 * Register the range as a fixed buffer. This will FOLL_WRITE |
+		 * FOLL_PIN | FOLL_LONGTERM the range.
+		 */
+		iov.iov_base = mem;
+		iov.iov_len = size;
+		ret = io_uring_register_buffers(&ring, &iov, 1);
+		/* Only new kernels return EFAULT. */
+		if (ret && (errno == ENOSPC || errno == EOPNOTSUPP ||
+			    errno == EFAULT)) {
+			if (should_work) {
+				ksft_print_msg("Should have failed (%s)\n",
+					       strerror(errno));
+				result = KSFT_FAIL;
+			} else {
+				result = KSFT_PASS;
+			}
+		} else if (ret) {
+			/*
+			 * We might just lack support or have insufficient
+			 * MEMLOCK limits.
+			 */
+			ksft_print_msg("io_uring_register_buffers() failed (%s)\n",
+				       strerror(-ret));
+			result = KSFT_SKIP;
+		} else {
+			if (should_work) {
+				result = KSFT_PASS;
+			} else {
+				ksft_print_msg("Should have worked\n");
+				result = KSFT_FAIL;
+			}
+			io_uring_unregister_buffers(&ring);
+		}
+
+		io_uring_queue_exit(&ring);
+		break;
+	}
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+	default:
+		assert(false);
+	}
+
+munmap:
+	munmap(mem, size);
+report:
+	log_test_result(result);
+}
+
+typedef void (*test_fn)(int fd, size_t size);
+
+static void run_with_memfd(test_fn fn, const char *desc)
+{
+	int fd;
+
+	log_test_start("%s ... with memfd", desc);
+
+	fd = memfd_create("test", 0);
+	if (fd < 0) {
+		ksft_print_msg("memfd_create() failed (%s)\n", strerror(errno));
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	fn(fd, pagesize);
+	close(fd);
+}
+
+static void run_with_tmpfile(test_fn fn, const char *desc)
+{
+	FILE *file;
+	int fd;
+
+	log_test_start("%s ... with tmpfile", desc);
+
+	file = tmpfile();
+	if (!file) {
+		ksft_print_msg("tmpfile() failed (%s)\n", strerror(errno));
+		fd = -1;
+	} else {
+		fd = fileno(file);
+		if (fd < 0) {
+			ksft_print_msg("fileno() failed (%s)\n", strerror(errno));
+		}
+	}
+
+	fn(fd, pagesize);
+
+	if (file)
+		fclose(file);
+}
+
+static void run_with_local_tmpfile(test_fn fn, const char *desc)
+{
+	char filename[] = __FILE__"_tmpfile_XXXXXX";
+	int fd;
+
+	log_test_start("%s ... with local tmpfile", desc);
+
+	fd = mkstemp(filename);
+	if (fd < 0)
+		ksft_print_msg("mkstemp() failed (%s)\n", strerror(errno));
+
+	if (unlink(filename)) {
+		ksft_print_msg("unlink() failed (%s)\n", strerror(errno));
+		close(fd);
+		fd = -1;
+	}
+
+	fn(fd, pagesize);
+
+	if (fd >= 0)
+		close(fd);
+}
+
+static void run_with_memfd_hugetlb(test_fn fn, const char *desc,
+				   size_t hugetlbsize)
+{
+	int flags = MFD_HUGETLB;
+	int fd;
+
+	log_test_start("%s ... with memfd hugetlb (%zu kB)", desc,
+		       hugetlbsize / 1024);
+
+	flags |= __builtin_ctzll(hugetlbsize) << MFD_HUGE_SHIFT;
+
+	fd = memfd_create("test", flags);
+	if (fd < 0) {
+		ksft_print_msg("memfd_create() failed (%s)\n", strerror(errno));
+		log_test_result(KSFT_SKIP);
+		return;
+	}
+
+	fn(fd, hugetlbsize);
+	close(fd);
+}
+
+struct test_case {
+	const char *desc;
+	test_fn fn;
+};
+
+static void test_shared_rw_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RW, true);
+}
+
+static void test_shared_rw_fast_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RW_FAST, true);
+}
+
+static void test_shared_ro_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RO, true);
+}
+
+static void test_shared_ro_fast_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RO_FAST, true);
+}
+
+static void test_private_rw_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RW, false);
+}
+
+static void test_private_rw_fast_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RW_FAST, false);
+}
+
+static void test_private_ro_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RO, false);
+}
+
+static void test_private_ro_fast_pin(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_RO_FAST, false);
+}
+
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+static void test_shared_iouring(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_IOURING, true);
+}
+
+static void test_private_iouring(int fd, size_t size)
+{
+	do_test(fd, size, TEST_TYPE_IOURING, false);
+}
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+
+static const struct test_case test_cases[] = {
+	{
+		"R/W longterm GUP pin in MAP_SHARED file mapping",
+		test_shared_rw_pin,
+	},
+	{
+		"R/W longterm GUP-fast pin in MAP_SHARED file mapping",
+		test_shared_rw_fast_pin,
+	},
+	{
+		"R/O longterm GUP pin in MAP_SHARED file mapping",
+		test_shared_ro_pin,
+	},
+	{
+		"R/O longterm GUP-fast pin in MAP_SHARED file mapping",
+		test_shared_ro_fast_pin,
+	},
+	{
+		"R/W longterm GUP pin in MAP_PRIVATE file mapping",
+		test_private_rw_pin,
+	},
+	{
+		"R/W longterm GUP-fast pin in MAP_PRIVATE file mapping",
+		test_private_rw_fast_pin,
+	},
+	{
+		"R/O longterm GUP pin in MAP_PRIVATE file mapping",
+		test_private_ro_pin,
+	},
+	{
+		"R/O longterm GUP-fast pin in MAP_PRIVATE file mapping",
+		test_private_ro_fast_pin,
+	},
+#ifdef LOCAL_CONFIG_HAVE_LIBURING
+	{
+		"io_uring fixed buffer with MAP_SHARED file mapping",
+		test_shared_iouring,
+	},
+	{
+		"io_uring fixed buffer with MAP_PRIVATE file mapping",
+		test_private_iouring,
+	},
+#endif /* LOCAL_CONFIG_HAVE_LIBURING */
+};
+
+static void run_test_case(struct test_case const *test_case)
+{
+	int i;
+
+	run_with_memfd(test_case->fn, test_case->desc);
+	run_with_tmpfile(test_case->fn, test_case->desc);
+	run_with_local_tmpfile(test_case->fn, test_case->desc);
+	for (i = 0; i < nr_hugetlbsizes; i++)
+		run_with_memfd_hugetlb(test_case->fn, test_case->desc,
+				       hugetlbsizes[i]);
+}
+
+static int tests_per_test_case(void)
+{
+	return 3 + nr_hugetlbsizes;
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	pagesize = getpagesize();
+	nr_hugetlbsizes = detect_hugetlb_page_sizes(hugetlbsizes,
+						    ARRAY_SIZE(hugetlbsizes));
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(test_cases) * tests_per_test_case());
+
+	gup_fd = open("/sys/kernel/debug/gup_test", O_RDWR);
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++)
+		run_test_case(&test_cases[i]);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/gup_test.c b/tools/testing/selftests/mm/gup_test.c
new file mode 100644
index 000000000000..fb8f9ae49efa
--- /dev/null
+++ b/tools/testing/selftests/mm/gup_test.c
@@ -0,0 +1,260 @@
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <pthread.h>
+#include <assert.h>
+#include <mm/gup_test.h>
+#include "kselftest.h"
+#include "vm_util.h"
+
+#define MB (1UL << 20)
+
+/* Just the flags we need, copied from the kernel internals. */
+#define FOLL_WRITE	0x01	/* check pte is writable */
+
+#define GUP_TEST_FILE "/sys/kernel/debug/gup_test"
+
+static unsigned long cmd = GUP_FAST_BENCHMARK;
+static int gup_fd, repeats = 1;
+static unsigned long size = 128 * MB;
+/* Serialize prints */
+static pthread_mutex_t print_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static char *cmd_to_str(unsigned long cmd)
+{
+	switch (cmd) {
+	case GUP_FAST_BENCHMARK:
+		return "GUP_FAST_BENCHMARK";
+	case PIN_FAST_BENCHMARK:
+		return "PIN_FAST_BENCHMARK";
+	case PIN_LONGTERM_BENCHMARK:
+		return "PIN_LONGTERM_BENCHMARK";
+	case GUP_BASIC_TEST:
+		return "GUP_BASIC_TEST";
+	case PIN_BASIC_TEST:
+		return "PIN_BASIC_TEST";
+	case DUMP_USER_PAGES_TEST:
+		return "DUMP_USER_PAGES_TEST";
+	}
+	return "Unknown command";
+}
+
+void *gup_thread(void *data)
+{
+	struct gup_test gup = *(struct gup_test *)data;
+	int i, status;
+
+	/* Only report timing information on the *_BENCHMARK commands: */
+	if ((cmd == PIN_FAST_BENCHMARK) || (cmd == GUP_FAST_BENCHMARK) ||
+	     (cmd == PIN_LONGTERM_BENCHMARK)) {
+		for (i = 0; i < repeats; i++) {
+			gup.size = size;
+			status = ioctl(gup_fd, cmd, &gup);
+			if (status)
+				break;
+
+			pthread_mutex_lock(&print_mutex);
+			ksft_print_msg("%s: Time: get:%lld put:%lld us",
+				       cmd_to_str(cmd), gup.get_delta_usec,
+				       gup.put_delta_usec);
+			if (gup.size != size)
+				ksft_print_msg(", truncated (size: %lld)", gup.size);
+			ksft_print_msg("\n");
+			pthread_mutex_unlock(&print_mutex);
+		}
+	} else {
+		gup.size = size;
+		status = ioctl(gup_fd, cmd, &gup);
+		if (status)
+			goto return_;
+
+		pthread_mutex_lock(&print_mutex);
+		ksft_print_msg("%s: done\n", cmd_to_str(cmd));
+		if (gup.size != size)
+			ksft_print_msg("Truncated (size: %lld)\n", gup.size);
+		pthread_mutex_unlock(&print_mutex);
+	}
+
+return_:
+	ksft_test_result(!status, "ioctl status %d\n", status);
+	return NULL;
+}
+
+int main(int argc, char **argv)
+{
+	struct gup_test gup = { 0 };
+	int filed, i, opt, nr_pages = 1, thp = -1, write = 1, nthreads = 1, ret;
+	int flags = MAP_PRIVATE;
+	char *file = "/dev/zero";
+	pthread_t *tid;
+	char *p;
+
+	while ((opt = getopt(argc, argv, "m:r:n:F:f:abcj:tTLUuwWSHpz")) != -1) {
+		switch (opt) {
+		case 'a':
+			cmd = PIN_FAST_BENCHMARK;
+			break;
+		case 'b':
+			cmd = PIN_BASIC_TEST;
+			break;
+		case 'L':
+			cmd = PIN_LONGTERM_BENCHMARK;
+			break;
+		case 'c':
+			cmd = DUMP_USER_PAGES_TEST;
+			/*
+			 * Dump page 0 (index 1). May be overridden later, by
+			 * user's non-option arguments.
+			 *
+			 * .which_pages is zero-based, so that zero can mean "do
+			 * nothing".
+			 */
+			gup.which_pages[0] = 1;
+			break;
+		case 'p':
+			/* works only with DUMP_USER_PAGES_TEST */
+			gup.test_flags |= GUP_TEST_FLAG_DUMP_PAGES_USE_PIN;
+			break;
+		case 'F':
+			/* strtol, so you can pass flags in hex form */
+			gup.gup_flags = strtol(optarg, 0, 0);
+			break;
+		case 'j':
+			nthreads = atoi(optarg);
+			break;
+		case 'm':
+			size = atoi(optarg) * MB;
+			break;
+		case 'r':
+			repeats = atoi(optarg);
+			break;
+		case 'n':
+			nr_pages = atoi(optarg);
+			if (nr_pages < 0)
+				nr_pages = size / psize();
+			break;
+		case 't':
+			thp = 1;
+			break;
+		case 'T':
+			thp = 0;
+			break;
+		case 'U':
+			cmd = GUP_BASIC_TEST;
+			break;
+		case 'u':
+			cmd = GUP_FAST_BENCHMARK;
+			break;
+		case 'w':
+			write = 1;
+			break;
+		case 'W':
+			write = 0;
+			break;
+		case 'f':
+			file = optarg;
+			break;
+		case 'S':
+			flags &= ~MAP_PRIVATE;
+			flags |= MAP_SHARED;
+			break;
+		case 'H':
+			flags |= (MAP_HUGETLB | MAP_ANONYMOUS);
+			break;
+		default:
+			ksft_exit_fail_msg("Wrong argument\n");
+		}
+	}
+
+	if (optind < argc) {
+		int extra_arg_count = 0;
+		/*
+		 * For example:
+		 *
+		 *   ./gup_test -c 0 1 0x1001
+		 *
+		 * ...to dump pages 0, 1, and 4097
+		 */
+
+		while ((optind < argc) &&
+		       (extra_arg_count < GUP_TEST_MAX_PAGES_TO_DUMP)) {
+			/*
+			 * Do the 1-based indexing here, so that the user can
+			 * use normal 0-based indexing on the command line.
+			 */
+			long page_index = strtol(argv[optind], 0, 0) + 1;
+
+			gup.which_pages[extra_arg_count] = page_index;
+			extra_arg_count++;
+			optind++;
+		}
+	}
+
+	ksft_print_header();
+	ksft_set_plan(nthreads);
+
+	filed = open(file, O_RDWR|O_CREAT, 0664);
+	if (filed < 0)
+		ksft_exit_fail_msg("Unable to open %s: %s\n", file, strerror(errno));
+
+	gup.nr_pages_per_call = nr_pages;
+	if (write)
+		gup.gup_flags |= FOLL_WRITE;
+
+	gup_fd = open(GUP_TEST_FILE, O_RDWR);
+	if (gup_fd == -1) {
+		switch (errno) {
+		case EACCES:
+			if (getuid())
+				ksft_print_msg("Please run this test as root\n");
+			break;
+		case ENOENT:
+			if (opendir("/sys/kernel/debug") == NULL)
+				ksft_print_msg("mount debugfs at /sys/kernel/debug\n");
+			ksft_print_msg("check if CONFIG_GUP_TEST is enabled in kernel config\n");
+			break;
+		default:
+			ksft_print_msg("failed to open %s: %s\n", GUP_TEST_FILE, strerror(errno));
+			break;
+		}
+		ksft_test_result_skip("Please run this test as root\n");
+		ksft_exit_pass();
+	}
+
+	p = mmap(NULL, size, PROT_READ | PROT_WRITE, flags, filed, 0);
+	if (p == MAP_FAILED)
+		ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+	gup.addr = (unsigned long)p;
+
+	if (thp == 1)
+		madvise(p, size, MADV_HUGEPAGE);
+	else if (thp == 0)
+		madvise(p, size, MADV_NOHUGEPAGE);
+
+	/* Fault them in here, from user space. */
+	for (; (unsigned long)p < gup.addr + size; p += psize())
+		p[0] = 0;
+
+	tid = malloc(sizeof(pthread_t) * nthreads);
+	assert(tid);
+	for (i = 0; i < nthreads; i++) {
+		ret = pthread_create(&tid[i], NULL, gup_thread, &gup);
+		assert(ret == 0);
+	}
+	for (i = 0; i < nthreads; i++) {
+		ret = pthread_join(tid[i], NULL);
+		assert(ret == 0);
+	}
+
+	free(tid);
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/hmm-tests.c b/tools/testing/selftests/mm/hmm-tests.c
new file mode 100644
index 000000000000..e8328c89d855
--- /dev/null
+++ b/tools/testing/selftests/mm/hmm-tests.c
@@ -0,0 +1,2855 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * HMM stands for Heterogeneous Memory Management, it is a helper layer inside
+ * the linux kernel to help device drivers mirror a process address space in
+ * the device. This allows the device to use the same address space which
+ * makes communication and data exchange a lot easier.
+ *
+ * This framework's sole purpose is to exercise various code paths inside
+ * the kernel to make sure that HMM performs as expected and to flush out any
+ * bugs.
+ */
+
+#include "kselftest_harness.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <strings.h>
+#include <time.h>
+#include <pthread.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+
+
+/*
+ * This is a private UAPI to the kernel test module so it isn't exported
+ * in the usual include/uapi/... directory.
+ */
+#include <lib/test_hmm_uapi.h>
+#include <mm/gup_test.h>
+
+struct hmm_buffer {
+	void		*ptr;
+	void		*mirror;
+	unsigned long	size;
+	int		fd;
+	uint64_t	cpages;
+	uint64_t	faults;
+};
+
+enum {
+	HMM_PRIVATE_DEVICE_ONE,
+	HMM_PRIVATE_DEVICE_TWO,
+	HMM_COHERENCE_DEVICE_ONE,
+	HMM_COHERENCE_DEVICE_TWO,
+};
+
+#define ONEKB		(1 << 10)
+#define ONEMEG		(1 << 20)
+#define TWOMEG		(1 << 21)
+#define HMM_BUFFER_SIZE (1024 << 12)
+#define HMM_PATH_MAX    64
+#define NTIMES		10
+
+#define ALIGN(x, a) (((x) + (a - 1)) & (~((a) - 1)))
+/* Just the flags we need, copied from mm.h: */
+
+#ifndef FOLL_WRITE
+#define FOLL_WRITE	0x01	/* check pte is writable */
+#endif
+
+#ifndef FOLL_LONGTERM
+#define FOLL_LONGTERM   0x100 /* mapping lifetime is indefinite */
+#endif
+FIXTURE(hmm)
+{
+	int		fd;
+	unsigned int	page_size;
+	unsigned int	page_shift;
+};
+
+FIXTURE_VARIANT(hmm)
+{
+	int     device_number;
+};
+
+FIXTURE_VARIANT_ADD(hmm, hmm_device_private)
+{
+	.device_number = HMM_PRIVATE_DEVICE_ONE,
+};
+
+FIXTURE_VARIANT_ADD(hmm, hmm_device_coherent)
+{
+	.device_number = HMM_COHERENCE_DEVICE_ONE,
+};
+
+FIXTURE(hmm2)
+{
+	int		fd0;
+	int		fd1;
+	unsigned int	page_size;
+	unsigned int	page_shift;
+};
+
+FIXTURE_VARIANT(hmm2)
+{
+	int     device_number0;
+	int     device_number1;
+};
+
+FIXTURE_VARIANT_ADD(hmm2, hmm2_device_private)
+{
+	.device_number0 = HMM_PRIVATE_DEVICE_ONE,
+	.device_number1 = HMM_PRIVATE_DEVICE_TWO,
+};
+
+FIXTURE_VARIANT_ADD(hmm2, hmm2_device_coherent)
+{
+	.device_number0 = HMM_COHERENCE_DEVICE_ONE,
+	.device_number1 = HMM_COHERENCE_DEVICE_TWO,
+};
+
+static int hmm_open(int unit)
+{
+	char pathname[HMM_PATH_MAX];
+	int fd;
+
+	snprintf(pathname, sizeof(pathname), "/dev/hmm_dmirror%d", unit);
+	fd = open(pathname, O_RDWR, 0);
+	if (fd < 0)
+		fprintf(stderr, "could not open hmm dmirror driver (%s)\n",
+			pathname);
+	return fd;
+}
+
+static bool hmm_is_coherent_type(int dev_num)
+{
+	return (dev_num >= HMM_COHERENCE_DEVICE_ONE);
+}
+
+FIXTURE_SETUP(hmm)
+{
+	self->page_size = sysconf(_SC_PAGE_SIZE);
+	self->page_shift = ffs(self->page_size) - 1;
+
+	self->fd = hmm_open(variant->device_number);
+	if (self->fd < 0 && hmm_is_coherent_type(variant->device_number))
+		SKIP(return, "DEVICE_COHERENT not available");
+	ASSERT_GE(self->fd, 0);
+}
+
+FIXTURE_SETUP(hmm2)
+{
+	self->page_size = sysconf(_SC_PAGE_SIZE);
+	self->page_shift = ffs(self->page_size) - 1;
+
+	self->fd0 = hmm_open(variant->device_number0);
+	if (self->fd0 < 0 && hmm_is_coherent_type(variant->device_number0))
+		SKIP(return, "DEVICE_COHERENT not available");
+	ASSERT_GE(self->fd0, 0);
+	self->fd1 = hmm_open(variant->device_number1);
+	ASSERT_GE(self->fd1, 0);
+}
+
+FIXTURE_TEARDOWN(hmm)
+{
+	int ret = close(self->fd);
+
+	ASSERT_EQ(ret, 0);
+	self->fd = -1;
+}
+
+FIXTURE_TEARDOWN(hmm2)
+{
+	int ret = close(self->fd0);
+
+	ASSERT_EQ(ret, 0);
+	self->fd0 = -1;
+
+	ret = close(self->fd1);
+	ASSERT_EQ(ret, 0);
+	self->fd1 = -1;
+}
+
+static int hmm_dmirror_cmd(int fd,
+			   unsigned long request,
+			   struct hmm_buffer *buffer,
+			   unsigned long npages)
+{
+	struct hmm_dmirror_cmd cmd;
+	int ret;
+
+	/* Simulate a device reading system memory. */
+	cmd.addr = (__u64)buffer->ptr;
+	cmd.ptr = (__u64)buffer->mirror;
+	cmd.npages = npages;
+
+	for (;;) {
+		ret = ioctl(fd, request, &cmd);
+		if (ret == 0)
+			break;
+		if (errno == EINTR)
+			continue;
+		return -errno;
+	}
+	buffer->cpages = cmd.cpages;
+	buffer->faults = cmd.faults;
+
+	return 0;
+}
+
+static void hmm_buffer_free(struct hmm_buffer *buffer)
+{
+	if (buffer == NULL)
+		return;
+
+	if (buffer->ptr) {
+		munmap(buffer->ptr, buffer->size);
+		buffer->ptr = NULL;
+	}
+	free(buffer->mirror);
+	free(buffer);
+}
+
+/*
+ * Create a temporary file that will be deleted on close.
+ */
+static int hmm_create_file(unsigned long size)
+{
+	char path[HMM_PATH_MAX];
+	int fd;
+
+	strcpy(path, "/tmp");
+	fd = open(path, O_TMPFILE | O_EXCL | O_RDWR, 0600);
+	if (fd >= 0) {
+		int r;
+
+		do {
+			r = ftruncate(fd, size);
+		} while (r == -1 && errno == EINTR);
+		if (!r)
+			return fd;
+		close(fd);
+	}
+	return -1;
+}
+
+/*
+ * Return a random unsigned number.
+ */
+static unsigned int hmm_random(void)
+{
+	static int fd = -1;
+	unsigned int r;
+
+	if (fd < 0) {
+		fd = open("/dev/urandom", O_RDONLY);
+		if (fd < 0) {
+			fprintf(stderr, "%s:%d failed to open /dev/urandom\n",
+					__FILE__, __LINE__);
+			return ~0U;
+		}
+	}
+	read(fd, &r, sizeof(r));
+	return r;
+}
+
+static void hmm_nanosleep(unsigned int n)
+{
+	struct timespec t;
+
+	t.tv_sec = 0;
+	t.tv_nsec = n;
+	nanosleep(&t, NULL);
+}
+
+static int hmm_migrate_sys_to_dev(int fd,
+				   struct hmm_buffer *buffer,
+				   unsigned long npages)
+{
+	return hmm_dmirror_cmd(fd, HMM_DMIRROR_MIGRATE_TO_DEV, buffer, npages);
+}
+
+static int hmm_migrate_dev_to_sys(int fd,
+				   struct hmm_buffer *buffer,
+				   unsigned long npages)
+{
+	return hmm_dmirror_cmd(fd, HMM_DMIRROR_MIGRATE_TO_SYS, buffer, npages);
+}
+
+/*
+ * Simple NULL test of device open/close.
+ */
+TEST_F(hmm, open_close)
+{
+}
+
+/*
+ * Read private anonymous memory.
+ */
+TEST_F(hmm, anon_read)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+	int val;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/*
+	 * Initialize buffer in system memory but leave the first two pages
+	 * zero (pte_none and pfn_zero).
+	 */
+	i = 2 * self->page_size / sizeof(*ptr);
+	for (ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Set buffer permission to read-only. */
+	ret = mprotect(buffer->ptr, size, PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Populate the CPU page table with a special zero page. */
+	val = *(int *)(buffer->ptr + self->page_size);
+	ASSERT_EQ(val, 0);
+
+	/* Simulate a device reading system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device read. */
+	ptr = buffer->mirror;
+	for (i = 0; i < 2 * self->page_size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+	for (; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Read private anonymous memory which has been protected with
+ * mprotect() PROT_NONE.
+ */
+TEST_F(hmm, anon_read_prot)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Initialize mirror buffer so we can verify it isn't written. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = -i;
+
+	/* Protect buffer from reading. */
+	ret = mprotect(buffer->ptr, size, PROT_NONE);
+	ASSERT_EQ(ret, 0);
+
+	/* Simulate a device reading system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, -EFAULT);
+
+	/* Allow CPU to read the buffer so we can check it. */
+	ret = mprotect(buffer->ptr, size, PROT_READ);
+	ASSERT_EQ(ret, 0);
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], -i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Write private anonymous memory.
+ */
+TEST_F(hmm, anon_write)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Write private anonymous memory which has been protected with
+ * mprotect() PROT_READ.
+ */
+TEST_F(hmm, anon_write_prot)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Simulate a device reading a zero page of memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer, 1);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, 1);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, -EPERM);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+
+	/* Now allow writing and see that the zero page is replaced. */
+	ret = mprotect(buffer->ptr, size, PROT_WRITE | PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Check that a device writing an anonymous private mapping
+ * will copy-on-write if a child process inherits the mapping.
+ *
+ * Also verifies after fork() memory the device can be read by child.
+ */
+TEST_F(hmm, anon_write_child)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	pid_t pid;
+	int child_fd;
+	int ret, use_thp, migrate;
+
+	for (migrate = 0; migrate < 2; ++migrate) {
+		for (use_thp = 0; use_thp < 2; ++use_thp) {
+			npages = ALIGN(use_thp ? TWOMEG : HMM_BUFFER_SIZE,
+				       self->page_size) >> self->page_shift;
+			ASSERT_NE(npages, 0);
+			size = npages << self->page_shift;
+
+			buffer = malloc(sizeof(*buffer));
+			ASSERT_NE(buffer, NULL);
+
+			buffer->fd = -1;
+			buffer->size = size * 2;
+			buffer->mirror = malloc(size);
+			ASSERT_NE(buffer->mirror, NULL);
+
+			buffer->ptr = mmap(NULL, size * 2,
+					   PROT_READ | PROT_WRITE,
+					   MAP_PRIVATE | MAP_ANONYMOUS,
+					   buffer->fd, 0);
+			ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+			old_ptr = buffer->ptr;
+			if (use_thp) {
+				map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+				ret = madvise(map, size, MADV_HUGEPAGE);
+				ASSERT_EQ(ret, 0);
+				buffer->ptr = map;
+			}
+
+			/* Initialize buffer->ptr so we can tell if it is written. */
+			for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+				ptr[i] = i;
+
+			/* Initialize data that the device will write to buffer->ptr. */
+			for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+				ptr[i] = -i;
+
+			if (migrate) {
+				ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+				ASSERT_EQ(ret, 0);
+				ASSERT_EQ(buffer->cpages, npages);
+
+			}
+
+			pid = fork();
+			if (pid == -1)
+				ASSERT_EQ(pid, 0);
+			if (pid != 0) {
+				waitpid(pid, &ret, 0);
+				ASSERT_EQ(WIFEXITED(ret), 1);
+
+				/* Check that the parent's buffer did not change. */
+				for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+					ASSERT_EQ(ptr[i], i);
+
+				buffer->ptr = old_ptr;
+				hmm_buffer_free(buffer);
+				continue;
+			}
+
+			/* Check that we see the parent's values. */
+			for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+				ASSERT_EQ(ptr[i], i);
+			if (!migrate) {
+				for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+					ASSERT_EQ(ptr[i], -i);
+			}
+
+			/* The child process needs its own mirror to its own mm. */
+			child_fd = hmm_open(0);
+			ASSERT_GE(child_fd, 0);
+
+			/* Simulate a device writing system memory. */
+			ret = hmm_dmirror_cmd(child_fd, HMM_DMIRROR_WRITE, buffer, npages);
+			ASSERT_EQ(ret, 0);
+			ASSERT_EQ(buffer->cpages, npages);
+			ASSERT_EQ(buffer->faults, 1);
+
+			/* Check what the device wrote. */
+			if (!migrate) {
+				for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+					ASSERT_EQ(ptr[i], -i);
+			}
+
+			close(child_fd);
+			exit(0);
+		}
+	}
+}
+
+/*
+ * Check that a device writing an anonymous shared mapping
+ * will not copy-on-write if a child process inherits the mapping.
+ */
+TEST_F(hmm, anon_write_child_shared)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	pid_t pid;
+	int child_fd;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_SHARED | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer->ptr so we can tell if it is written. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = -i;
+
+	pid = fork();
+	if (pid == -1)
+		ASSERT_EQ(pid, 0);
+	if (pid != 0) {
+		waitpid(pid, &ret, 0);
+		ASSERT_EQ(WIFEXITED(ret), 1);
+
+		/* Check that the parent's buffer did change. */
+		for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+			ASSERT_EQ(ptr[i], -i);
+		return;
+	}
+
+	/* Check that we see the parent's values. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], -i);
+
+	/* The child process needs its own mirror to its own mm. */
+	child_fd = hmm_open(0);
+	ASSERT_GE(child_fd, 0);
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(child_fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], -i);
+
+	close(child_fd);
+	exit(0);
+}
+
+/*
+ * Write private anonymous huge page.
+ */
+TEST_F(hmm, anon_write_huge)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = 2 * TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	size = TWOMEG;
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	old_ptr = buffer->ptr;
+	buffer->ptr = map;
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Read numeric data from raw and tagged kernel status files.  Used to read
+ * /proc and /sys data (without a tag) and from /proc/meminfo (with a tag).
+ */
+static long file_read_ulong(char *file, const char *tag)
+{
+	int fd;
+	char buf[2048];
+	int len;
+	char *p, *q;
+	long val;
+
+	fd = open(file, O_RDONLY);
+	if (fd < 0) {
+		/* Error opening the file */
+		return -1;
+	}
+
+	len = read(fd, buf, sizeof(buf));
+	close(fd);
+	if (len < 0) {
+		/* Error in reading the file */
+		return -1;
+	}
+	if (len == sizeof(buf)) {
+		/* Error file is too large */
+		return -1;
+	}
+	buf[len] = '\0';
+
+	/* Search for a tag if provided */
+	if (tag) {
+		p = strstr(buf, tag);
+		if (!p)
+			return -1; /* looks like the line we want isn't there */
+		p += strlen(tag);
+	} else
+		p = buf;
+
+	val = strtol(p, &q, 0);
+	if (*q != ' ') {
+		/* Error parsing the file */
+		return -1;
+	}
+
+	return val;
+}
+
+/*
+ * Write huge TLBFS page.
+ */
+TEST_F(hmm, anon_write_hugetlbfs)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long default_hsize;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	default_hsize = file_read_ulong("/proc/meminfo", "Hugepagesize:");
+	if (default_hsize < 0 || default_hsize*1024 < default_hsize)
+		SKIP(return, "Huge page size could not be determined");
+	default_hsize = default_hsize*1024; /* KB to B */
+
+	size = ALIGN(TWOMEG, default_hsize);
+	npages = size >> self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+				   PROT_READ | PROT_WRITE,
+				   MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+				   -1, 0);
+	if (buffer->ptr == MAP_FAILED) {
+		free(buffer);
+		SKIP(return, "Huge page could not be allocated");
+	}
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	munmap(buffer->ptr, buffer->size);
+	buffer->ptr = NULL;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Read mmap'ed file memory.
+ */
+TEST_F(hmm, file_read)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+	int fd;
+	ssize_t len;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	fd = hmm_create_file(size);
+	ASSERT_GE(fd, 0);
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = fd;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Write initial contents of the file. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+	len = pwrite(fd, buffer->mirror, size, 0);
+	ASSERT_EQ(len, size);
+	memset(buffer->mirror, 0, size);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ,
+			   MAP_SHARED,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Simulate a device reading system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Write mmap'ed file memory.
+ */
+TEST_F(hmm, file_write)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+	int fd;
+	ssize_t len;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	fd = hmm_create_file(size);
+	ASSERT_GE(fd, 0);
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = fd;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_SHARED,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize data that the device will write to buffer->ptr. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device wrote. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Check that the device also wrote the file. */
+	len = pread(fd, buffer->mirror, size, 0);
+	ASSERT_EQ(len, size);
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate anonymous memory to device private memory.
+ */
+TEST_F(hmm, migrate)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate anonymous memory to device private memory and fault some of it back
+ * to system memory, then try migrating the resulting mix of system and device
+ * private memory to the device.
+ */
+TEST_F(hmm, migrate_fault)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Fault half the pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / (2 * sizeof(*ptr)); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Migrate memory to the device again. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+TEST_F(hmm, migrate_release)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS, buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Release device memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_RELEASE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+
+	/* Fault pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / (2 * sizeof(*ptr)); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate anonymous shared memory to device private memory.
+ */
+TEST_F(hmm, migrate_shared)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_SHARED | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, -ENOENT);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Try to migrate various memory types to device private memory.
+ */
+TEST_F(hmm2, migrate_mixed)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	int *ptr;
+	unsigned char *p;
+	int ret;
+	int val;
+
+	npages = 6;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Reserve a range of addresses. */
+	buffer->ptr = mmap(NULL, size,
+			   PROT_NONE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+	p = buffer->ptr;
+
+	/* Migrating a protected area should be an error. */
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, npages);
+	ASSERT_EQ(ret, -EINVAL);
+
+	/* Punch a hole after the first page address. */
+	ret = munmap(buffer->ptr + self->page_size, self->page_size);
+	ASSERT_EQ(ret, 0);
+
+	/* We expect an error if the vma doesn't cover the range. */
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 3);
+	ASSERT_EQ(ret, -EINVAL);
+
+	/* Page 2 will be a read-only zero page. */
+	ret = mprotect(buffer->ptr + 2 * self->page_size, self->page_size,
+				PROT_READ);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 2 * self->page_size);
+	val = *ptr + 3;
+	ASSERT_EQ(val, 3);
+
+	/* Page 3 will be read-only. */
+	ret = mprotect(buffer->ptr + 3 * self->page_size, self->page_size,
+				PROT_READ | PROT_WRITE);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 3 * self->page_size);
+	*ptr = val;
+	ret = mprotect(buffer->ptr + 3 * self->page_size, self->page_size,
+				PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Page 4-5 will be read-write. */
+	ret = mprotect(buffer->ptr + 4 * self->page_size, 2 * self->page_size,
+				PROT_READ | PROT_WRITE);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 4 * self->page_size);
+	*ptr = val;
+	ptr = (int *)(buffer->ptr + 5 * self->page_size);
+	*ptr = val;
+
+	/* Now try to migrate pages 2-5 to device 1. */
+	buffer->ptr = p + 2 * self->page_size;
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 4);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, 4);
+
+	/* Page 5 won't be migrated to device 0 because it's on device 1. */
+	buffer->ptr = p + 5 * self->page_size;
+	ret = hmm_migrate_sys_to_dev(self->fd0, buffer, 1);
+	ASSERT_EQ(ret, -ENOENT);
+	buffer->ptr = p;
+
+	buffer->ptr = p;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate anonymous memory to device memory and back to system memory
+ * multiple times. In case of private zone configuration, this is done
+ * through fault pages accessed by CPU. In case of coherent zone configuration,
+ * the pages from the device should be explicitly migrated back to system memory.
+ * The reason is Coherent device zone has coherent access by CPU, therefore
+ * it will not generate any page fault.
+ */
+TEST_F(hmm, migrate_multiple)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	unsigned long c;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	for (c = 0; c < NTIMES; c++) {
+		buffer = malloc(sizeof(*buffer));
+		ASSERT_NE(buffer, NULL);
+
+		buffer->fd = -1;
+		buffer->size = size;
+		buffer->mirror = malloc(size);
+		ASSERT_NE(buffer->mirror, NULL);
+
+		buffer->ptr = mmap(NULL, size,
+				   PROT_READ | PROT_WRITE,
+				   MAP_PRIVATE | MAP_ANONYMOUS,
+				   buffer->fd, 0);
+		ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+		/* Initialize buffer in system memory. */
+		for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+			ptr[i] = i;
+
+		/* Migrate memory to device. */
+		ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+		ASSERT_EQ(ret, 0);
+		ASSERT_EQ(buffer->cpages, npages);
+
+		/* Check what the device read. */
+		for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+			ASSERT_EQ(ptr[i], i);
+
+		/* Migrate back to system memory and check them. */
+		if (hmm_is_coherent_type(variant->device_number)) {
+			ret = hmm_migrate_dev_to_sys(self->fd, buffer, npages);
+			ASSERT_EQ(ret, 0);
+			ASSERT_EQ(buffer->cpages, npages);
+		}
+
+		for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+			ASSERT_EQ(ptr[i], i);
+
+		hmm_buffer_free(buffer);
+	}
+}
+
+/*
+ * Read anonymous memory multiple times.
+ */
+TEST_F(hmm, anon_read_multiple)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	unsigned long c;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	for (c = 0; c < NTIMES; c++) {
+		buffer = malloc(sizeof(*buffer));
+		ASSERT_NE(buffer, NULL);
+
+		buffer->fd = -1;
+		buffer->size = size;
+		buffer->mirror = malloc(size);
+		ASSERT_NE(buffer->mirror, NULL);
+
+		buffer->ptr = mmap(NULL, size,
+				   PROT_READ | PROT_WRITE,
+				   MAP_PRIVATE | MAP_ANONYMOUS,
+				   buffer->fd, 0);
+		ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+		/* Initialize buffer in system memory. */
+		for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+			ptr[i] = i + c;
+
+		/* Simulate a device reading system memory. */
+		ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer,
+				      npages);
+		ASSERT_EQ(ret, 0);
+		ASSERT_EQ(buffer->cpages, npages);
+		ASSERT_EQ(buffer->faults, 1);
+
+		/* Check what the device read. */
+		for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+			ASSERT_EQ(ptr[i], i + c);
+
+		hmm_buffer_free(buffer);
+	}
+}
+
+void *unmap_buffer(void *p)
+{
+	struct hmm_buffer *buffer = p;
+
+	/* Delay for a bit and then unmap buffer while it is being read. */
+	hmm_nanosleep(hmm_random() % 32000);
+	munmap(buffer->ptr + buffer->size / 2, buffer->size / 2);
+	buffer->ptr = NULL;
+
+	return NULL;
+}
+
+/*
+ * Try reading anonymous memory while it is being unmapped.
+ */
+TEST_F(hmm, anon_teardown)
+{
+	unsigned long npages;
+	unsigned long size;
+	unsigned long c;
+	void *ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	for (c = 0; c < NTIMES; ++c) {
+		pthread_t thread;
+		struct hmm_buffer *buffer;
+		unsigned long i;
+		int *ptr;
+		int rc;
+
+		buffer = malloc(sizeof(*buffer));
+		ASSERT_NE(buffer, NULL);
+
+		buffer->fd = -1;
+		buffer->size = size;
+		buffer->mirror = malloc(size);
+		ASSERT_NE(buffer->mirror, NULL);
+
+		buffer->ptr = mmap(NULL, size,
+				   PROT_READ | PROT_WRITE,
+				   MAP_PRIVATE | MAP_ANONYMOUS,
+				   buffer->fd, 0);
+		ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+		/* Initialize buffer in system memory. */
+		for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+			ptr[i] = i + c;
+
+		rc = pthread_create(&thread, NULL, unmap_buffer, buffer);
+		ASSERT_EQ(rc, 0);
+
+		/* Simulate a device reading system memory. */
+		rc = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_READ, buffer,
+				     npages);
+		if (rc == 0) {
+			ASSERT_EQ(buffer->cpages, npages);
+			ASSERT_EQ(buffer->faults, 1);
+
+			/* Check what the device read. */
+			for (i = 0, ptr = buffer->mirror;
+			     i < size / sizeof(*ptr);
+			     ++i)
+				ASSERT_EQ(ptr[i], i + c);
+		}
+
+		pthread_join(thread, &ret);
+		hmm_buffer_free(buffer);
+	}
+}
+
+/*
+ * Test memory snapshot without faulting in pages accessed by the device.
+ */
+TEST_F(hmm, mixedmap)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned char *m;
+	int ret;
+
+	npages = 1;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(npages);
+	ASSERT_NE(buffer->mirror, NULL);
+
+
+	/* Reserve a range of addresses. */
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE,
+			   self->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Simulate a device snapshotting CPU pagetables. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device saw. */
+	m = buffer->mirror;
+	ASSERT_EQ(m[0], HMM_DMIRROR_PROT_READ);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Test memory snapshot without faulting in pages accessed by the device.
+ */
+TEST_F(hmm2, snapshot)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	int *ptr;
+	unsigned char *p;
+	unsigned char *m;
+	int ret;
+	int val;
+
+	npages = 7;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(npages);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Reserve a range of addresses. */
+	buffer->ptr = mmap(NULL, size,
+			   PROT_NONE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+	p = buffer->ptr;
+
+	/* Punch a hole after the first page address. */
+	ret = munmap(buffer->ptr + self->page_size, self->page_size);
+	ASSERT_EQ(ret, 0);
+
+	/* Page 2 will be read-only zero page. */
+	ret = mprotect(buffer->ptr + 2 * self->page_size, self->page_size,
+				PROT_READ);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 2 * self->page_size);
+	val = *ptr + 3;
+	ASSERT_EQ(val, 3);
+
+	/* Page 3 will be read-only. */
+	ret = mprotect(buffer->ptr + 3 * self->page_size, self->page_size,
+				PROT_READ | PROT_WRITE);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 3 * self->page_size);
+	*ptr = val;
+	ret = mprotect(buffer->ptr + 3 * self->page_size, self->page_size,
+				PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Page 4-6 will be read-write. */
+	ret = mprotect(buffer->ptr + 4 * self->page_size, 3 * self->page_size,
+				PROT_READ | PROT_WRITE);
+	ASSERT_EQ(ret, 0);
+	ptr = (int *)(buffer->ptr + 4 * self->page_size);
+	*ptr = val;
+
+	/* Page 5 will be migrated to device 0. */
+	buffer->ptr = p + 5 * self->page_size;
+	ret = hmm_migrate_sys_to_dev(self->fd0, buffer, 1);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, 1);
+
+	/* Page 6 will be migrated to device 1. */
+	buffer->ptr = p + 6 * self->page_size;
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, 1);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, 1);
+
+	/* Simulate a device snapshotting CPU pagetables. */
+	buffer->ptr = p;
+	ret = hmm_dmirror_cmd(self->fd0, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device saw. */
+	m = buffer->mirror;
+	ASSERT_EQ(m[0], HMM_DMIRROR_PROT_ERROR);
+	ASSERT_EQ(m[1], HMM_DMIRROR_PROT_ERROR);
+	ASSERT_EQ(m[2], HMM_DMIRROR_PROT_ZERO | HMM_DMIRROR_PROT_READ);
+	ASSERT_EQ(m[3], HMM_DMIRROR_PROT_READ);
+	ASSERT_EQ(m[4], HMM_DMIRROR_PROT_WRITE);
+	if (!hmm_is_coherent_type(variant->device_number0)) {
+		ASSERT_EQ(m[5], HMM_DMIRROR_PROT_DEV_PRIVATE_LOCAL |
+				HMM_DMIRROR_PROT_WRITE);
+		ASSERT_EQ(m[6], HMM_DMIRROR_PROT_NONE);
+	} else {
+		ASSERT_EQ(m[5], HMM_DMIRROR_PROT_DEV_COHERENT_LOCAL |
+				HMM_DMIRROR_PROT_WRITE);
+		ASSERT_EQ(m[6], HMM_DMIRROR_PROT_DEV_COHERENT_REMOTE |
+				HMM_DMIRROR_PROT_WRITE);
+	}
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Test the hmm_range_fault() HMM_PFN_PMD flag for large pages that
+ * should be mapped by a large page table entry.
+ */
+TEST_F(hmm, compound)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long default_hsize;
+	int *ptr;
+	unsigned char *m;
+	int ret;
+	unsigned long i;
+
+	/* Skip test if we can't allocate a hugetlbfs page. */
+
+	default_hsize = file_read_ulong("/proc/meminfo", "Hugepagesize:");
+	if (default_hsize < 0 || default_hsize*1024 < default_hsize)
+		SKIP(return, "Huge page size could not be determined");
+	default_hsize = default_hsize*1024; /* KB to B */
+
+	size = ALIGN(TWOMEG, default_hsize);
+	npages = size >> self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+				   PROT_READ | PROT_WRITE,
+				   MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+				   -1, 0);
+	if (buffer->ptr == MAP_FAILED) {
+		free(buffer);
+		return;
+	}
+
+	buffer->size = size;
+	buffer->mirror = malloc(npages);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Initialize the pages the device will snapshot in buffer->ptr. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Simulate a device snapshotting CPU pagetables. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device saw. */
+	m = buffer->mirror;
+	for (i = 0; i < npages; ++i)
+		ASSERT_EQ(m[i], HMM_DMIRROR_PROT_WRITE |
+				HMM_DMIRROR_PROT_PMD);
+
+	/* Make the region read-only. */
+	ret = mprotect(buffer->ptr, size, PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Simulate a device snapshotting CPU pagetables. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device saw. */
+	m = buffer->mirror;
+	for (i = 0; i < npages; ++i)
+		ASSERT_EQ(m[i], HMM_DMIRROR_PROT_READ |
+				HMM_DMIRROR_PROT_PMD);
+
+	munmap(buffer->ptr, buffer->size);
+	buffer->ptr = NULL;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Test two devices reading the same memory (double mapped).
+ */
+TEST_F(hmm2, double_map)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = 6;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	/* Reserve a range of addresses. */
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Make region read-only. */
+	ret = mprotect(buffer->ptr, size, PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Simulate device 0 reading system memory. */
+	ret = hmm_dmirror_cmd(self->fd0, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Simulate device 1 reading system memory. */
+	ret = hmm_dmirror_cmd(self->fd1, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Migrate pages to device 1 and try to read from device 0. */
+	ret = hmm_migrate_sys_to_dev(self->fd1, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	ret = hmm_dmirror_cmd(self->fd0, HMM_DMIRROR_READ, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	ASSERT_EQ(buffer->faults, 1);
+
+	/* Check what device 0 read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Basic check of exclusive faulting.
+ */
+TEST_F(hmm, exclusive)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Map memory exclusively for device access. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_EXCLUSIVE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Fault pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i]++, i);
+
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i+1);
+
+	/* Check atomic access revoked */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_CHECK_EXCLUSIVE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+
+	hmm_buffer_free(buffer);
+}
+
+TEST_F(hmm, exclusive_mprotect)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Map memory exclusively for device access. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_EXCLUSIVE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	ret = mprotect(buffer->ptr, size, PROT_READ);
+	ASSERT_EQ(ret, 0);
+
+	/* Simulate a device writing system memory. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_WRITE, buffer, npages);
+	ASSERT_EQ(ret, -EPERM);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Check copy-on-write works.
+ */
+TEST_F(hmm, exclusive_cow)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+
+	npages = ALIGN(HMM_BUFFER_SIZE, self->page_size) >> self->page_shift;
+	ASSERT_NE(npages, 0);
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Map memory exclusively for device access. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_EXCLUSIVE, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	fork();
+
+	/* Fault pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i]++, i);
+
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i+1);
+
+	hmm_buffer_free(buffer);
+}
+
+static int gup_test_exec(int gup_fd, unsigned long addr, int cmd,
+			 int npages, int size, int flags)
+{
+	struct gup_test gup = {
+		.nr_pages_per_call	= npages,
+		.addr			= addr,
+		.gup_flags		= FOLL_WRITE | flags,
+		.size			= size,
+	};
+
+	if (ioctl(gup_fd, cmd, &gup)) {
+		perror("ioctl on error\n");
+		return errno;
+	}
+
+	return 0;
+}
+
+/*
+ * Test get user device pages through gup_test. Setting PIN_LONGTERM flag.
+ * This should trigger a migration back to system memory for both, private
+ * and coherent type pages.
+ * This test makes use of gup_test module. Make sure GUP_TEST_CONFIG is added
+ * to your configuration before you run it.
+ */
+TEST_F(hmm, hmm_gup_test)
+{
+	struct hmm_buffer *buffer;
+	int gup_fd;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+	unsigned char *m;
+
+	gup_fd = open("/sys/kernel/debug/gup_test", O_RDWR);
+	if (gup_fd == -1)
+		SKIP(return, "Skipping test, could not find gup_test driver");
+
+	npages = 4;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	ASSERT_EQ(gup_test_exec(gup_fd,
+				(unsigned long)buffer->ptr,
+				GUP_BASIC_TEST, 1, self->page_size, 0), 0);
+	ASSERT_EQ(gup_test_exec(gup_fd,
+				(unsigned long)buffer->ptr + 1 * self->page_size,
+				GUP_FAST_BENCHMARK, 1, self->page_size, 0), 0);
+	ASSERT_EQ(gup_test_exec(gup_fd,
+				(unsigned long)buffer->ptr + 2 * self->page_size,
+				PIN_FAST_BENCHMARK, 1, self->page_size, FOLL_LONGTERM), 0);
+	ASSERT_EQ(gup_test_exec(gup_fd,
+				(unsigned long)buffer->ptr + 3 * self->page_size,
+				PIN_LONGTERM_BENCHMARK, 1, self->page_size, 0), 0);
+
+	/* Take snapshot to CPU pagetables */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	m = buffer->mirror;
+	if (hmm_is_coherent_type(variant->device_number)) {
+		ASSERT_EQ(HMM_DMIRROR_PROT_DEV_COHERENT_LOCAL | HMM_DMIRROR_PROT_WRITE, m[0]);
+		ASSERT_EQ(HMM_DMIRROR_PROT_DEV_COHERENT_LOCAL | HMM_DMIRROR_PROT_WRITE, m[1]);
+	} else {
+		ASSERT_EQ(HMM_DMIRROR_PROT_WRITE, m[0]);
+		ASSERT_EQ(HMM_DMIRROR_PROT_WRITE, m[1]);
+	}
+	ASSERT_EQ(HMM_DMIRROR_PROT_WRITE, m[2]);
+	ASSERT_EQ(HMM_DMIRROR_PROT_WRITE, m[3]);
+	/*
+	 * Check again the content on the pages. Make sure there's no
+	 * corrupted data.
+	 */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	close(gup_fd);
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Test copy-on-write in device pages.
+ * In case of writing to COW private page(s), a page fault will migrate pages
+ * back to system memory first. Then, these pages will be duplicated. In case
+ * of COW device coherent type, pages are duplicated directly from device
+ * memory.
+ */
+TEST_F(hmm, hmm_cow_in_device)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	int *ptr;
+	int ret;
+	unsigned char *m;
+	pid_t pid;
+	int status;
+
+	npages = 4;
+	size = npages << self->page_shift;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+
+	buffer->ptr = mmap(NULL, size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	pid = fork();
+	if (pid == -1)
+		ASSERT_EQ(pid, 0);
+	if (!pid) {
+		/* Child process waits for SIGTERM from the parent. */
+		while (1) {
+		}
+		/* Should not reach this */
+	}
+	/* Parent process writes to COW pages(s) and gets a
+	 * new copy in system. In case of device private pages,
+	 * this write causes a migration to system mem first.
+	 */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Terminate child and wait */
+	EXPECT_EQ(0, kill(pid, SIGTERM));
+	EXPECT_EQ(pid, waitpid(pid, &status, 0));
+	EXPECT_NE(0, WIFSIGNALED(status));
+	EXPECT_EQ(SIGTERM, WTERMSIG(status));
+
+	/* Take snapshot to CPU pagetables */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_SNAPSHOT, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+	m = buffer->mirror;
+	for (i = 0; i < npages; i++)
+		ASSERT_EQ(HMM_DMIRROR_PROT_WRITE, m[i]);
+
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate private anonymous huge empty page.
+ */
+TEST_F(hmm, migrate_anon_huge_empty)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, size);
+
+	buffer->ptr = mmap(NULL, 2 * size,
+			   PROT_READ,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	old_ptr = buffer->ptr;
+	buffer->ptr = map;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate private anonymous huge zero page.
+ */
+TEST_F(hmm, migrate_anon_huge_zero)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+	int val;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, size);
+
+	buffer->ptr = mmap(NULL, 2 * size,
+			   PROT_READ,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	old_ptr = buffer->ptr;
+	buffer->ptr = map;
+
+	/* Initialize a read-only zero huge page. */
+	val = *(int *)buffer->ptr;
+	ASSERT_EQ(val, 0);
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+
+	/* Fault pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i) {
+		ASSERT_EQ(ptr[i], 0);
+		/* If it asserts once, it probably will 500,000 times */
+		if (ptr[i] != 0)
+			break;
+	}
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate private anonymous huge page and free.
+ */
+TEST_F(hmm, migrate_anon_huge_free)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, size);
+
+	buffer->ptr = mmap(NULL, 2 * size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	old_ptr = buffer->ptr;
+	buffer->ptr = map;
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Try freeing it. */
+	ret = madvise(map, size, MADV_FREE);
+	ASSERT_EQ(ret, 0);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate private anonymous huge page and fault back to sysmem.
+ */
+TEST_F(hmm, migrate_anon_huge_fault)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, size);
+
+	buffer->ptr = mmap(NULL, 2 * size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS,
+			   buffer->fd, 0);
+	ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	old_ptr = buffer->ptr;
+	buffer->ptr = map;
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	/* Fault pages back to system memory and check them. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], i);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate memory and fault back to sysmem after partially unmapping.
+ */
+TEST_F(hmm, migrate_partial_unmap_fault)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size = TWOMEG;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret, j, use_thp;
+	int offsets[] = { 0, 512 * ONEKB, ONEMEG };
+
+	for (use_thp = 0; use_thp < 2; ++use_thp) {
+		for (j = 0; j < ARRAY_SIZE(offsets); ++j) {
+			buffer = malloc(sizeof(*buffer));
+			ASSERT_NE(buffer, NULL);
+
+			buffer->fd = -1;
+			buffer->size = 2 * size;
+			buffer->mirror = malloc(size);
+			ASSERT_NE(buffer->mirror, NULL);
+			memset(buffer->mirror, 0xFF, size);
+
+			buffer->ptr = mmap(NULL, 2 * size,
+					   PROT_READ | PROT_WRITE,
+					   MAP_PRIVATE | MAP_ANONYMOUS,
+					   buffer->fd, 0);
+			ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+			npages = size >> self->page_shift;
+			map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+			if (use_thp)
+				ret = madvise(map, size, MADV_HUGEPAGE);
+			else
+				ret = madvise(map, size, MADV_NOHUGEPAGE);
+			ASSERT_EQ(ret, 0);
+			old_ptr = buffer->ptr;
+			buffer->ptr = map;
+
+			/* Initialize buffer in system memory. */
+			for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+				ptr[i] = i;
+
+			/* Migrate memory to device. */
+			ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+			ASSERT_EQ(ret, 0);
+			ASSERT_EQ(buffer->cpages, npages);
+
+			/* Check what the device read. */
+			for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+				ASSERT_EQ(ptr[i], i);
+
+			munmap(buffer->ptr + offsets[j], ONEMEG);
+
+			/* Fault pages back to system memory and check them. */
+			for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+				if (i * sizeof(int) < offsets[j] ||
+				    i * sizeof(int) >= offsets[j] + ONEMEG)
+					ASSERT_EQ(ptr[i], i);
+
+			buffer->ptr = old_ptr;
+			hmm_buffer_free(buffer);
+		}
+	}
+}
+
+TEST_F(hmm, migrate_remap_fault)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size = TWOMEG;
+	unsigned long i;
+	void *old_ptr, *new_ptr = NULL;
+	void *map;
+	int *ptr;
+	int ret, j, use_thp, dont_unmap, before;
+	int offsets[] = { 0, 512 * ONEKB, ONEMEG };
+
+	for (before = 0; before < 2; ++before) {
+		for (dont_unmap = 0; dont_unmap < 2; ++dont_unmap) {
+			for (use_thp = 0; use_thp < 2; ++use_thp) {
+				for (j = 0; j < ARRAY_SIZE(offsets); ++j) {
+					int flags = MREMAP_MAYMOVE | MREMAP_FIXED;
+
+					if (dont_unmap)
+						flags |= MREMAP_DONTUNMAP;
+
+					buffer = malloc(sizeof(*buffer));
+					ASSERT_NE(buffer, NULL);
+
+					buffer->fd = -1;
+					buffer->size = 8 * size;
+					buffer->mirror = malloc(size);
+					ASSERT_NE(buffer->mirror, NULL);
+					memset(buffer->mirror, 0xFF, size);
+
+					buffer->ptr = mmap(NULL, buffer->size,
+							   PROT_READ | PROT_WRITE,
+							   MAP_PRIVATE | MAP_ANONYMOUS,
+							   buffer->fd, 0);
+					ASSERT_NE(buffer->ptr, MAP_FAILED);
+
+					npages = size >> self->page_shift;
+					map = (void *)ALIGN((uintptr_t)buffer->ptr, size);
+					if (use_thp)
+						ret = madvise(map, size, MADV_HUGEPAGE);
+					else
+						ret = madvise(map, size, MADV_NOHUGEPAGE);
+					ASSERT_EQ(ret, 0);
+					old_ptr = buffer->ptr;
+					munmap(map + size, size * 2);
+					buffer->ptr = map;
+
+					/* Initialize buffer in system memory. */
+					for (i = 0, ptr = buffer->ptr;
+					     i < size / sizeof(*ptr); ++i)
+						ptr[i] = i;
+
+					if (before) {
+						new_ptr = mremap((void *)map, size, size, flags,
+								 map + size + offsets[j]);
+						ASSERT_NE(new_ptr, MAP_FAILED);
+						buffer->ptr = new_ptr;
+					}
+
+					/* Migrate memory to device. */
+					ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+					ASSERT_EQ(ret, 0);
+					ASSERT_EQ(buffer->cpages, npages);
+
+					/* Check what the device read. */
+					for (i = 0, ptr = buffer->mirror;
+					     i < size / sizeof(*ptr); ++i)
+						ASSERT_EQ(ptr[i], i);
+
+					if (!before) {
+						new_ptr = mremap((void *)map, size, size, flags,
+								 map + size + offsets[j]);
+						ASSERT_NE(new_ptr, MAP_FAILED);
+						buffer->ptr = new_ptr;
+					}
+
+					/* Fault pages back to system memory and check them. */
+					for (i = 0, ptr = buffer->ptr;
+					     i < size / sizeof(*ptr); ++i)
+						ASSERT_EQ(ptr[i], i);
+
+					munmap(new_ptr, size);
+					buffer->ptr = old_ptr;
+					hmm_buffer_free(buffer);
+				}
+			}
+		}
+	}
+}
+
+/*
+ * Migrate private anonymous huge page with allocation errors.
+ */
+TEST_F(hmm, migrate_anon_huge_err)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(2 * size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, 2 * size);
+
+	old_ptr = mmap(NULL, 2 * size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, buffer->fd, 0);
+	ASSERT_NE(old_ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)old_ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	buffer->ptr = map;
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate memory to device but force a THP allocation error. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_FLAGS, buffer,
+			      HMM_DMIRROR_FLAG_FAIL_ALLOC);
+	ASSERT_EQ(ret, 0);
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i) {
+		ASSERT_EQ(ptr[i], i);
+		if (ptr[i] != i)
+			break;
+	}
+
+	/* Try faulting back a single (PAGE_SIZE) page. */
+	ptr = buffer->ptr;
+	ASSERT_EQ(ptr[2048], 2048);
+
+	/* unmap and remap the region to reset things. */
+	ret = munmap(old_ptr, 2 * size);
+	ASSERT_EQ(ret, 0);
+	old_ptr = mmap(NULL, 2 * size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, buffer->fd, 0);
+	ASSERT_NE(old_ptr, MAP_FAILED);
+	map = (void *)ALIGN((uintptr_t)old_ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	buffer->ptr = map;
+
+	/* Initialize buffer in system memory. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ptr[i] = i;
+
+	/* Migrate THP to device. */
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/*
+	 * Force an allocation error when faulting back a THP resident in the
+	 * device.
+	 */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_FLAGS, buffer,
+			      HMM_DMIRROR_FLAG_FAIL_ALLOC);
+	ASSERT_EQ(ret, 0);
+
+	ret = hmm_migrate_dev_to_sys(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ptr = buffer->ptr;
+	ASSERT_EQ(ptr[2048], 2048);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+/*
+ * Migrate private anonymous huge zero page with allocation errors.
+ */
+TEST_F(hmm, migrate_anon_huge_zero_err)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages;
+	unsigned long size;
+	unsigned long i;
+	void *old_ptr;
+	void *map;
+	int *ptr;
+	int ret;
+
+	size = TWOMEG;
+
+	buffer = malloc(sizeof(*buffer));
+	ASSERT_NE(buffer, NULL);
+
+	buffer->fd = -1;
+	buffer->size = 2 * size;
+	buffer->mirror = malloc(2 * size);
+	ASSERT_NE(buffer->mirror, NULL);
+	memset(buffer->mirror, 0xFF, 2 * size);
+
+	old_ptr = mmap(NULL, 2 * size, PROT_READ,
+			MAP_PRIVATE | MAP_ANONYMOUS, buffer->fd, 0);
+	ASSERT_NE(old_ptr, MAP_FAILED);
+
+	npages = size >> self->page_shift;
+	map = (void *)ALIGN((uintptr_t)old_ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	buffer->ptr = map;
+
+	/* Migrate memory to device but force a THP allocation error. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_FLAGS, buffer,
+			      HMM_DMIRROR_FLAG_FAIL_ALLOC);
+	ASSERT_EQ(ret, 0);
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Check what the device read. */
+	for (i = 0, ptr = buffer->mirror; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+
+	/* Try faulting back a single (PAGE_SIZE) page. */
+	ptr = buffer->ptr;
+	ASSERT_EQ(ptr[2048], 0);
+
+	/* unmap and remap the region to reset things. */
+	ret = munmap(old_ptr, 2 * size);
+	ASSERT_EQ(ret, 0);
+	old_ptr = mmap(NULL, 2 * size, PROT_READ,
+			MAP_PRIVATE | MAP_ANONYMOUS, buffer->fd, 0);
+	ASSERT_NE(old_ptr, MAP_FAILED);
+	map = (void *)ALIGN((uintptr_t)old_ptr, size);
+	ret = madvise(map, size, MADV_HUGEPAGE);
+	ASSERT_EQ(ret, 0);
+	buffer->ptr = map;
+
+	/* Initialize buffer in system memory (zero THP page). */
+	ret = ptr[0];
+	ASSERT_EQ(ret, 0);
+
+	/* Migrate memory to device but force a THP allocation error. */
+	ret = hmm_dmirror_cmd(self->fd, HMM_DMIRROR_FLAGS, buffer,
+			      HMM_DMIRROR_FLAG_FAIL_ALLOC);
+	ASSERT_EQ(ret, 0);
+	ret = hmm_migrate_sys_to_dev(self->fd, buffer, npages);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(buffer->cpages, npages);
+
+	/* Fault the device memory back and check it. */
+	for (i = 0, ptr = buffer->ptr; i < size / sizeof(*ptr); ++i)
+		ASSERT_EQ(ptr[i], 0);
+
+	buffer->ptr = old_ptr;
+	hmm_buffer_free(buffer);
+}
+
+struct benchmark_results {
+	double sys_to_dev_time;
+	double dev_to_sys_time;
+	double throughput_s2d;
+	double throughput_d2s;
+};
+
+static double get_time_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000.0) + (tv.tv_usec / 1000.0);
+}
+
+static inline struct hmm_buffer *hmm_buffer_alloc(unsigned long size)
+{
+	struct hmm_buffer *buffer;
+
+	buffer = malloc(sizeof(*buffer));
+
+	buffer->fd = -1;
+	buffer->size = size;
+	buffer->mirror = malloc(size);
+	memset(buffer->mirror, 0xFF, size);
+	return buffer;
+}
+
+static void print_benchmark_results(const char *test_name, size_t buffer_size,
+				     struct benchmark_results *thp,
+				     struct benchmark_results *regular)
+{
+	double s2d_improvement = ((regular->sys_to_dev_time - thp->sys_to_dev_time) /
+				 regular->sys_to_dev_time) * 100.0;
+	double d2s_improvement = ((regular->dev_to_sys_time - thp->dev_to_sys_time) /
+				 regular->dev_to_sys_time) * 100.0;
+	double throughput_s2d_improvement = ((thp->throughput_s2d - regular->throughput_s2d) /
+					    regular->throughput_s2d) * 100.0;
+	double throughput_d2s_improvement = ((thp->throughput_d2s - regular->throughput_d2s) /
+					    regular->throughput_d2s) * 100.0;
+
+	printf("\n=== %s (%.1f MB) ===\n", test_name, buffer_size / (1024.0 * 1024.0));
+	printf("                     | With THP        | Without THP     | Improvement\n");
+	printf("---------------------------------------------------------------------\n");
+	printf("Sys->Dev Migration   | %.3f ms        | %.3f ms        | %.1f%%\n",
+	       thp->sys_to_dev_time, regular->sys_to_dev_time, s2d_improvement);
+	printf("Dev->Sys Migration   | %.3f ms        | %.3f ms        | %.1f%%\n",
+	       thp->dev_to_sys_time, regular->dev_to_sys_time, d2s_improvement);
+	printf("S->D Throughput      | %.2f GB/s      | %.2f GB/s      | %.1f%%\n",
+	       thp->throughput_s2d, regular->throughput_s2d, throughput_s2d_improvement);
+	printf("D->S Throughput      | %.2f GB/s      | %.2f GB/s      | %.1f%%\n",
+	       thp->throughput_d2s, regular->throughput_d2s, throughput_d2s_improvement);
+}
+
+/*
+ * Run a single migration benchmark
+ * fd: file descriptor for hmm device
+ * use_thp: whether to use THP
+ * buffer_size: size of buffer to allocate
+ * iterations: number of iterations
+ * results: where to store results
+ */
+static inline int run_migration_benchmark(int fd, int use_thp, size_t buffer_size,
+					   int iterations, struct benchmark_results *results)
+{
+	struct hmm_buffer *buffer;
+	unsigned long npages = buffer_size / sysconf(_SC_PAGESIZE);
+	double start, end;
+	double s2d_total = 0, d2s_total = 0;
+	int ret, i;
+	int *ptr;
+
+	buffer = hmm_buffer_alloc(buffer_size);
+
+	/* Map memory */
+	buffer->ptr = mmap(NULL, buffer_size, PROT_READ | PROT_WRITE,
+			  MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	if (!buffer->ptr)
+		return -1;
+
+	/* Apply THP hint if requested */
+	if (use_thp)
+		ret = madvise(buffer->ptr, buffer_size, MADV_HUGEPAGE);
+	else
+		ret = madvise(buffer->ptr, buffer_size, MADV_NOHUGEPAGE);
+
+	if (ret)
+		return ret;
+
+	/* Initialize memory to make sure pages are allocated */
+	ptr = (int *)buffer->ptr;
+	for (i = 0; i < buffer_size / sizeof(int); i++)
+		ptr[i] = i & 0xFF;
+
+	/* Warmup iteration */
+	ret = hmm_migrate_sys_to_dev(fd, buffer, npages);
+	if (ret)
+		return ret;
+
+	ret = hmm_migrate_dev_to_sys(fd, buffer, npages);
+	if (ret)
+		return ret;
+
+	/* Benchmark iterations */
+	for (i = 0; i < iterations; i++) {
+		/* System to device migration */
+		start = get_time_ms();
+
+		ret = hmm_migrate_sys_to_dev(fd, buffer, npages);
+		if (ret)
+			return ret;
+
+		end = get_time_ms();
+		s2d_total += (end - start);
+
+		/* Device to system migration */
+		start = get_time_ms();
+
+		ret = hmm_migrate_dev_to_sys(fd, buffer, npages);
+		if (ret)
+			return ret;
+
+		end = get_time_ms();
+		d2s_total += (end - start);
+	}
+
+	/* Calculate average times and throughput */
+	results->sys_to_dev_time = s2d_total / iterations;
+	results->dev_to_sys_time = d2s_total / iterations;
+	results->throughput_s2d = (buffer_size / (1024.0 * 1024.0 * 1024.0)) /
+				 (results->sys_to_dev_time / 1000.0);
+	results->throughput_d2s = (buffer_size / (1024.0 * 1024.0 * 1024.0)) /
+				 (results->dev_to_sys_time / 1000.0);
+
+	/* Cleanup */
+	hmm_buffer_free(buffer);
+	return 0;
+}
+
+/*
+ * Benchmark THP migration with different buffer sizes
+ */
+TEST_F_TIMEOUT(hmm, benchmark_thp_migration, 120)
+{
+	struct benchmark_results thp_results, regular_results;
+	size_t thp_size = 2 * 1024 * 1024; /* 2MB - typical THP size */
+	int iterations = 5;
+
+	printf("\nHMM THP Migration Benchmark\n");
+	printf("---------------------------\n");
+	printf("System page size: %ld bytes\n", sysconf(_SC_PAGESIZE));
+
+	/* Test different buffer sizes */
+	size_t test_sizes[] = {
+		thp_size / 4,      /* 512KB - smaller than THP */
+		thp_size / 2,      /* 1MB - half THP */
+		thp_size,          /* 2MB - single THP */
+		thp_size * 2,      /* 4MB - two THPs */
+		thp_size * 4,      /* 8MB - four THPs */
+		thp_size * 8,       /* 16MB - eight THPs */
+		thp_size * 128,       /* 256MB - one twenty eight THPs */
+	};
+
+	static const char *const test_names[] = {
+		"Small Buffer (512KB)",
+		"Half THP Size (1MB)",
+		"Single THP Size (2MB)",
+		"Two THP Size (4MB)",
+		"Four THP Size (8MB)",
+		"Eight THP Size (16MB)",
+		"One twenty eight THP Size (256MB)"
+	};
+
+	int num_tests = ARRAY_SIZE(test_sizes);
+
+	/* Run all tests */
+	for (int i = 0; i < num_tests; i++) {
+		/* Test with THP */
+		ASSERT_EQ(run_migration_benchmark(self->fd, 1, test_sizes[i],
+					iterations, &thp_results), 0);
+
+		/* Test without THP */
+		ASSERT_EQ(run_migration_benchmark(self->fd, 0, test_sizes[i],
+					iterations, &regular_results), 0);
+
+		/* Print results */
+		print_benchmark_results(test_names[i], test_sizes[i],
+					&thp_results, &regular_results);
+	}
+}
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/vm/hugepage-mmap.c b/tools/testing/selftests/mm/hugepage-mmap.c
index a10f310d2362..d543419de040 100644
--- a/tools/testing/selftests/vm/hugepage-mmap.c
+++ b/tools/testing/selftests/mm/hugepage-mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hugepage-mmap:
  *
@@ -7,37 +8,21 @@
  * like /mnt) using the command mount -t hugetlbfs nodev /mnt. In this
  * example, the app is requesting memory of size 256MB that is backed by
  * huge pages.
- *
- * For the ia64 architecture, the Linux kernel reserves Region number 4 for
- * huge pages.  That means that if one requires a fixed address, a huge page
- * aligned address starting with 0x800000... will be required.  If a fixed
- * address is not required, the kernel will select an address in the proper
- * range.
- * Other architectures, such as ppc64, i386 or x86_64 are not so constrained.
  */
-
+#define _GNU_SOURCE
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/mman.h>
 #include <fcntl.h>
+#include "kselftest.h"
 
-#define FILE_NAME "huge/hugepagefile"
 #define LENGTH (256UL*1024*1024)
 #define PROTECTION (PROT_READ | PROT_WRITE)
 
-/* Only ia64 requires this */
-#ifdef __ia64__
-#define ADDR (void *)(0x8000000000000000UL)
-#define FLAGS (MAP_SHARED | MAP_FIXED)
-#else
-#define ADDR (void *)(0x0UL)
-#define FLAGS (MAP_SHARED)
-#endif
-
 static void check_bytes(char *addr)
 {
-	printf("First hex is %x\n", *((unsigned int *)addr));
+	ksft_print_msg("First hex is %x\n", *((unsigned int *)addr));
 }
 
 static void write_bytes(char *addr)
@@ -55,7 +40,7 @@ static int read_bytes(char *addr)
 	check_bytes(addr);
 	for (i = 0; i < LENGTH; i++)
 		if (*(addr + i) != (char)i) {
-			printf("Mismatch at %lu\n", i);
+			ksft_print_msg("Error: Mismatch at %lu\n", i);
 			return 1;
 		}
 	return 0;
@@ -66,27 +51,28 @@ int main(void)
 	void *addr;
 	int fd, ret;
 
-	fd = open(FILE_NAME, O_CREAT | O_RDWR, 0755);
-	if (fd < 0) {
-		perror("Open failed");
-		exit(1);
-	}
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	fd = memfd_create("hugepage-mmap", MFD_HUGETLB);
+	if (fd < 0)
+		ksft_exit_fail_msg("memfd_create() failed: %s\n", strerror(errno));
 
-	addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, fd, 0);
+	addr = mmap(NULL, LENGTH, PROTECTION, MAP_SHARED, fd, 0);
 	if (addr == MAP_FAILED) {
-		perror("mmap");
-		unlink(FILE_NAME);
-		exit(1);
+		close(fd);
+		ksft_exit_fail_msg("mmap(): %s\n", strerror(errno));
 	}
 
-	printf("Returned address is %p\n", addr);
+	ksft_print_msg("Returned address is %p\n", addr);
 	check_bytes(addr);
 	write_bytes(addr);
 	ret = read_bytes(addr);
 
 	munmap(addr, LENGTH);
 	close(fd);
-	unlink(FILE_NAME);
 
-	return ret;
+	ksft_test_result(!ret, "Read same data\n");
+
+	ksft_exit(!ret);
 }
diff --git a/tools/testing/selftests/mm/hugepage-mremap.c b/tools/testing/selftests/mm/hugepage-mremap.c
new file mode 100644
index 000000000000..b8f7d92e5a35
--- /dev/null
+++ b/tools/testing/selftests/mm/hugepage-mremap.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * hugepage-mremap:
+ *
+ * Example of remapping huge page memory in a user application using the
+ * mremap system call.  The path to a file in a hugetlbfs filesystem must
+ * be passed as the last argument to this test.  The amount of memory used
+ * by this test in MBs can optionally be passed as an argument.  If no memory
+ * amount is passed, the default amount is 10MB.
+ *
+ * To make sure the test triggers pmd sharing and goes through the 'unshare'
+ * path in the mremap code use 1GB (1024) or more.
+ */
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <fcntl.h> /* Definition of O_* constants */
+#include <sys/syscall.h> /* Definition of SYS_* constants */
+#include <linux/userfaultfd.h>
+#include <sys/ioctl.h>
+#include <string.h>
+#include <stdbool.h>
+#include "kselftest.h"
+#include "vm_util.h"
+
+#define DEFAULT_LENGTH_MB 10UL
+#define MB_TO_BYTES(x) (x * 1024 * 1024)
+
+#define PROTECTION (PROT_READ | PROT_WRITE | PROT_EXEC)
+#define FLAGS (MAP_SHARED | MAP_ANONYMOUS)
+
+static void check_bytes(char *addr)
+{
+	ksft_print_msg("First hex is %x\n", *((unsigned int *)addr));
+}
+
+static void write_bytes(char *addr, size_t len)
+{
+	unsigned long i;
+
+	for (i = 0; i < len; i++)
+		*(addr + i) = (char)i;
+}
+
+static int read_bytes(char *addr, size_t len)
+{
+	unsigned long i;
+
+	check_bytes(addr);
+	for (i = 0; i < len; i++)
+		if (*(addr + i) != (char)i) {
+			ksft_print_msg("Mismatch at %lu\n", i);
+			return 1;
+		}
+	return 0;
+}
+
+static void register_region_with_uffd(char *addr, size_t len)
+{
+	long uffd; /* userfaultfd file descriptor */
+	struct uffdio_api uffdio_api;
+
+	/* Create and enable userfaultfd object. */
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	if (uffd == -1) {
+		switch (errno) {
+		case EPERM:
+			ksft_exit_skip("Insufficient permissions, try running as root.\n");
+			break;
+		case ENOSYS:
+			ksft_exit_skip("userfaultfd is not supported/not enabled.\n");
+			break;
+		default:
+			ksft_exit_fail_msg("userfaultfd failed with %s\n", strerror(errno));
+			break;
+		}
+	}
+
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == -1)
+		ksft_exit_fail_msg("ioctl-UFFDIO_API: %s\n", strerror(errno));
+
+	/* Create a private anonymous mapping. The memory will be
+	 * demand-zero paged--that is, not yet allocated. When we
+	 * actually touch the memory, it will be allocated via
+	 * the userfaultfd.
+	 */
+
+	addr = mmap(NULL, len, PROT_READ | PROT_WRITE,
+		    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
+	ksft_print_msg("Address returned by mmap() = %p\n", addr);
+
+	/* Register the memory range of the mapping we just created for
+	 * handling by the userfaultfd object. In mode, we request to track
+	 * missing pages (i.e., pages that have not yet been faulted in).
+	 */
+	if (uffd_register(uffd, addr, len, true, false, false))
+		ksft_exit_fail_msg("ioctl-UFFDIO_REGISTER: %s\n", strerror(errno));
+}
+
+int main(int argc, char *argv[])
+{
+	size_t length = 0;
+	int ret = 0, fd;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	if (argc >= 2 && !strcmp(argv[1], "-h"))
+		ksft_exit_fail_msg("Usage: %s [length_in_MB]\n", argv[0]);
+
+	/* Read memory length as the first arg if valid, otherwise fallback to
+	 * the default length.
+	 */
+	if (argc >= 2)
+		length = (size_t)atoi(argv[1]);
+	else
+		length = DEFAULT_LENGTH_MB;
+
+	length = MB_TO_BYTES(length);
+	fd = memfd_create(argv[0], MFD_HUGETLB);
+	if (fd < 0)
+		ksft_exit_fail_msg("Open failed: %s\n", strerror(errno));
+
+	/* mmap to a PUD aligned address to hopefully trigger pmd sharing. */
+	unsigned long suggested_addr = 0x7eaa40000000;
+	void *haddr = mmap((void *)suggested_addr, length, PROTECTION,
+			   MAP_HUGETLB | MAP_SHARED | MAP_POPULATE, fd, 0);
+	ksft_print_msg("Map haddr: Returned address is %p\n", haddr);
+	if (haddr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap1: %s\n", strerror(errno));
+
+	/* mmap again to a dummy address to hopefully trigger pmd sharing. */
+	suggested_addr = 0x7daa40000000;
+	void *daddr = mmap((void *)suggested_addr, length, PROTECTION,
+			   MAP_HUGETLB | MAP_SHARED | MAP_POPULATE, fd, 0);
+	ksft_print_msg("Map daddr: Returned address is %p\n", daddr);
+	if (daddr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap3: %s\n", strerror(errno));
+
+	suggested_addr = 0x7faa40000000;
+	void *vaddr =
+		mmap((void *)suggested_addr, length, PROTECTION, FLAGS, -1, 0);
+	ksft_print_msg("Map vaddr: Returned address is %p\n", vaddr);
+	if (vaddr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap2: %s\n", strerror(errno));
+
+	register_region_with_uffd(haddr, length);
+
+	void *addr = mremap(haddr, length, length,
+			    MREMAP_MAYMOVE | MREMAP_FIXED, vaddr);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mremap: %s\n", strerror(errno));
+
+	ksft_print_msg("Mremap: Returned address is %p\n", addr);
+	check_bytes(addr);
+	write_bytes(addr, length);
+	ret = read_bytes(addr, length);
+
+	munmap(addr, length);
+
+	addr = mremap(addr, length, length, 0);
+	if (addr != MAP_FAILED)
+		ksft_exit_fail_msg("mremap: Expected failure, but call succeeded\n");
+
+	close(fd);
+
+	ksft_test_result(!ret, "Read same data\n");
+	ksft_exit(!ret);
+}
diff --git a/tools/testing/selftests/vm/hugepage-shm.c b/tools/testing/selftests/mm/hugepage-shm.c
index 0d0ef4fc0c04..ef06260802b5 100644
--- a/tools/testing/selftests/vm/hugepage-shm.c
+++ b/tools/testing/selftests/mm/hugepage-shm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hugepage-shm:
  *
@@ -7,13 +8,6 @@
  * SHM_HUGETLB in the shmget system call to inform the kernel that it is
  * requesting huge pages.
  *
- * For the ia64 architecture, the Linux kernel reserves Region number 4 for
- * huge pages.  That means that if one requires a fixed address, a huge page
- * aligned address starting with 0x800000... will be required.  If a fixed
- * address is not required, the kernel will select an address in the proper
- * range.
- * Other architectures, such as ppc64, i386 or x86_64 are not so constrained.
- *
  * Note: The default shared memory limit is quite low on many kernels,
  * you may need to increase it via:
  *
@@ -34,23 +28,10 @@
 #include <sys/shm.h>
 #include <sys/mman.h>
 
-#ifndef SHM_HUGETLB
-#define SHM_HUGETLB 04000
-#endif
-
 #define LENGTH (256UL*1024*1024)
 
 #define dprintf(x)  printf(x)
 
-/* Only ia64 requires this */
-#ifdef __ia64__
-#define ADDR (void *)(0x8000000000000000UL)
-#define SHMAT_FLAGS (SHM_RND)
-#else
-#define ADDR (void *)(0x0UL)
-#define SHMAT_FLAGS (0)
-#endif
-
 int main(void)
 {
 	int shmid;
@@ -64,7 +45,7 @@ int main(void)
 	}
 	printf("shmid: 0x%x\n", shmid);
 
-	shmaddr = shmat(shmid, ADDR, SHMAT_FLAGS);
+	shmaddr = shmat(shmid, NULL, 0);
 	if (shmaddr == (char *)-1) {
 		perror("Shared memory attach failure");
 		shmctl(shmid, IPC_RMID, NULL);
diff --git a/tools/testing/selftests/mm/hugepage-vmemmap.c b/tools/testing/selftests/mm/hugepage-vmemmap.c
new file mode 100644
index 000000000000..df366a4d1b92
--- /dev/null
+++ b/tools/testing/selftests/mm/hugepage-vmemmap.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A test case of using hugepage memory in a user application using the
+ * mmap system call with MAP_HUGETLB flag.  Before running this program
+ * make sure the administrator has allocated enough default sized huge
+ * pages to cover the 2 MB allocation.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include "vm_util.h"
+
+#define PAGE_COMPOUND_HEAD	(1UL << 15)
+#define PAGE_COMPOUND_TAIL	(1UL << 16)
+#define PAGE_HUGE		(1UL << 17)
+
+#define HEAD_PAGE_FLAGS		(PAGE_COMPOUND_HEAD | PAGE_HUGE)
+#define TAIL_PAGE_FLAGS		(PAGE_COMPOUND_TAIL | PAGE_HUGE)
+
+#define PM_PFRAME_BITS		55
+#define PM_PFRAME_MASK		~((1UL << PM_PFRAME_BITS) - 1)
+
+static size_t pagesize;
+static size_t maplength;
+
+static void write_bytes(char *addr, size_t length)
+{
+	unsigned long i;
+
+	for (i = 0; i < length; i++)
+		*(addr + i) = (char)i;
+}
+
+static unsigned long virt_to_pfn(void *addr)
+{
+	int fd;
+	unsigned long pagemap;
+
+	fd = open("/proc/self/pagemap", O_RDONLY);
+	if (fd < 0)
+		return -1UL;
+
+	lseek(fd, (unsigned long)addr / pagesize * sizeof(pagemap), SEEK_SET);
+	read(fd, &pagemap, sizeof(pagemap));
+	close(fd);
+
+	return pagemap & ~PM_PFRAME_MASK;
+}
+
+static int check_page_flags(unsigned long pfn)
+{
+	int fd, i;
+	unsigned long pageflags;
+
+	fd = open("/proc/kpageflags", O_RDONLY);
+	if (fd < 0)
+		return -1;
+
+	lseek(fd, pfn * sizeof(pageflags), SEEK_SET);
+
+	read(fd, &pageflags, sizeof(pageflags));
+	if ((pageflags & HEAD_PAGE_FLAGS) != HEAD_PAGE_FLAGS) {
+		close(fd);
+		printf("Head page flags (%lx) is invalid\n", pageflags);
+		return -1;
+	}
+
+	/*
+	 * pages other than the first page must be tail and shouldn't be head;
+	 * this also verifies kernel has correctly set the fake page_head to tail
+	 * while hugetlb_free_vmemmap is enabled.
+	 */
+	for (i = 1; i < maplength / pagesize; i++) {
+		read(fd, &pageflags, sizeof(pageflags));
+		if ((pageflags & TAIL_PAGE_FLAGS) != TAIL_PAGE_FLAGS ||
+		    (pageflags & HEAD_PAGE_FLAGS) == HEAD_PAGE_FLAGS) {
+			close(fd);
+			printf("Tail page flags (%lx) is invalid\n", pageflags);
+			return -1;
+		}
+	}
+
+	close(fd);
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	void *addr;
+	unsigned long pfn;
+
+	pagesize  = psize();
+	maplength = default_huge_page_size();
+	if (!maplength) {
+		printf("Unable to determine huge page size\n");
+		exit(1);
+	}
+
+	addr = mmap(NULL, maplength, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	/* Trigger allocation of HugeTLB page. */
+	write_bytes(addr, maplength);
+
+	pfn = virt_to_pfn(addr);
+	if (pfn == -1UL) {
+		munmap(addr, maplength);
+		perror("virt_to_pfn");
+		exit(1);
+	}
+
+	printf("Returned address is %p whose pfn is %lx\n", addr, pfn);
+
+	if (check_page_flags(pfn) < 0) {
+		munmap(addr, maplength);
+		perror("check_page_flags");
+		exit(1);
+	}
+
+	/* munmap() length of MAP_HUGETLB memory must be hugepage aligned */
+	if (munmap(addr, maplength)) {
+		perror("munmap");
+		exit(1);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/hugetlb-madvise.c b/tools/testing/selftests/mm/hugetlb-madvise.c
new file mode 100644
index 000000000000..05d9d2805ae4
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb-madvise.c
@@ -0,0 +1,367 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * hugepage-madvise:
+ *
+ * Basic functional testing of madvise MADV_DONTNEED and MADV_REMOVE
+ * on hugetlb mappings.
+ *
+ * Before running this test, make sure the administrator has pre-allocated
+ * at least MIN_FREE_PAGES hugetlb pages and they are free.  In addition,
+ * the test takes an argument that is the path to a file in a hugetlbfs
+ * filesystem.  Therefore, a hugetlbfs filesystem must be mounted on some
+ * directory.
+ */
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+#define MIN_FREE_PAGES	20
+#define NR_HUGE_PAGES	10	/* common number of pages to map/allocate */
+
+#define validate_free_pages(exp_free)					\
+	do {								\
+		int fhp = get_free_hugepages();				\
+		if (fhp != (exp_free)) {				\
+			printf("Unexpected number of free huge "	\
+				"pages line %d\n", __LINE__);		\
+			exit(1);					\
+		}							\
+	} while (0)
+
+unsigned long huge_page_size;
+unsigned long base_page_size;
+
+void write_fault_pages(void *addr, unsigned long nr_pages)
+{
+	unsigned long i;
+
+	for (i = 0; i < nr_pages; i++)
+		*((unsigned long *)(addr + (i * huge_page_size))) = i;
+}
+
+void read_fault_pages(void *addr, unsigned long nr_pages)
+{
+	unsigned long i;
+
+	for (i = 0; i < nr_pages; i++) {
+		unsigned long *addr2 =
+			((unsigned long *)(addr + (i * huge_page_size)));
+		/* Prevent the compiler from optimizing out the entire loop: */
+		FORCE_READ(*addr2);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	unsigned long free_hugepages;
+	void *addr, *addr2;
+	int fd;
+	int ret;
+
+	huge_page_size = default_huge_page_size();
+	if (!huge_page_size) {
+		printf("Unable to determine huge page size, exiting!\n");
+		exit(1);
+	}
+	base_page_size = sysconf(_SC_PAGE_SIZE);
+	if (!huge_page_size) {
+		printf("Unable to determine base page size, exiting!\n");
+		exit(1);
+	}
+
+	free_hugepages = get_free_hugepages();
+	if (free_hugepages < MIN_FREE_PAGES) {
+		printf("Not enough free huge pages to test, exiting!\n");
+		exit(KSFT_SKIP);
+	}
+
+	fd = memfd_create(argv[0], MFD_HUGETLB);
+	if (fd < 0) {
+		perror("memfd_create() failed");
+		exit(1);
+	}
+
+	/*
+	 * Test validity of MADV_DONTNEED addr and length arguments.  mmap
+	 * size is NR_HUGE_PAGES + 2.  One page at the beginning and end of
+	 * the mapping will be unmapped so we KNOW there is nothing mapped
+	 * there.
+	 */
+	addr = mmap(NULL, (NR_HUGE_PAGES + 2) * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+			-1, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+	if (munmap(addr, huge_page_size) ||
+			munmap(addr + (NR_HUGE_PAGES + 1) * huge_page_size,
+				huge_page_size)) {
+		perror("munmap");
+		exit(1);
+	}
+	addr = addr + huge_page_size;
+
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* addr before mapping should fail */
+	ret = madvise(addr - base_page_size, NR_HUGE_PAGES * huge_page_size,
+		MADV_DONTNEED);
+	if (!ret) {
+		printf("Unexpected success of madvise call with invalid addr line %d\n",
+				__LINE__);
+			exit(1);
+	}
+
+	/* addr + length after mapping should fail */
+	ret = madvise(addr, (NR_HUGE_PAGES * huge_page_size) + base_page_size,
+		MADV_DONTNEED);
+	if (!ret) {
+		printf("Unexpected success of madvise call with invalid length line %d\n",
+				__LINE__);
+			exit(1);
+	}
+
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+
+	/*
+	 * Test alignment of MADV_DONTNEED addr and length arguments
+	 */
+	addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+			-1, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* addr is not huge page size aligned and should fail */
+	ret = madvise(addr + base_page_size,
+			NR_HUGE_PAGES * huge_page_size - base_page_size,
+			MADV_DONTNEED);
+	if (!ret) {
+		printf("Unexpected success of madvise call with unaligned start address %d\n",
+				__LINE__);
+			exit(1);
+	}
+
+	/* addr + length should be aligned down to huge page size */
+	if (madvise(addr,
+			((NR_HUGE_PAGES - 1) * huge_page_size) + base_page_size,
+			MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+
+	/* should free all but last page in mapping */
+	validate_free_pages(free_hugepages - 1);
+
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+	validate_free_pages(free_hugepages);
+
+	/*
+	 * Test MADV_DONTNEED on anonymous private mapping
+	 */
+	addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+			-1, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+
+	/* should free all pages in mapping */
+	validate_free_pages(free_hugepages);
+
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+
+	/*
+	 * Test MADV_DONTNEED on private mapping of hugetlb file
+	 */
+	if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
+		perror("fallocate");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_PRIVATE, fd, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	/* read should not consume any pages */
+	read_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* madvise should not free any pages */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* writes should allocate private pages */
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
+
+	/* madvise should free private pages */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* writes should allocate private pages */
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
+
+	/*
+	 * The fallocate below certainly should free the pages associated
+	 * with the file.  However, pages in the private mapping are also
+	 * freed.  This is not the 'correct' behavior, but is expected
+	 * because this is how it has worked since the initial hugetlb
+	 * implementation.
+	 */
+	if (fallocate(fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+					0, NR_HUGE_PAGES * huge_page_size)) {
+		perror("fallocate");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages);
+
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+
+	/*
+	 * Test MADV_DONTNEED on shared mapping of hugetlb file
+	 */
+	if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
+		perror("fallocate");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_SHARED, fd, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	/* write should not consume any pages */
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* madvise should not free any pages */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/*
+	 * Test MADV_REMOVE on shared mapping of hugetlb file
+	 *
+	 * madvise is same as hole punch and should free all pages.
+	 */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages);
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+
+	/*
+	 * Test MADV_REMOVE on shared and private mapping of hugetlb file
+	 */
+	if (fallocate(fd, 0, 0, NR_HUGE_PAGES * huge_page_size)) {
+		perror("fallocate");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	addr = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_SHARED, fd, 0);
+	if (addr == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	/* shared write should not consume any additional pages */
+	write_fault_pages(addr, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	addr2 = mmap(NULL, NR_HUGE_PAGES * huge_page_size,
+			PROT_READ | PROT_WRITE,
+			MAP_PRIVATE, fd, 0);
+	if (addr2 == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	/* private read should not consume any pages */
+	read_fault_pages(addr2, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* private write should consume additional pages */
+	write_fault_pages(addr2, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
+
+	/* madvise of shared mapping should not free any pages */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
+
+	/* madvise of private mapping should free private pages */
+	if (madvise(addr2, NR_HUGE_PAGES * huge_page_size, MADV_DONTNEED)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages - NR_HUGE_PAGES);
+
+	/* private write should consume additional pages again */
+	write_fault_pages(addr2, NR_HUGE_PAGES);
+	validate_free_pages(free_hugepages - (2 * NR_HUGE_PAGES));
+
+	/*
+	 * madvise should free both file and private pages although this is
+	 * not correct.  private pages should not be freed, but this is
+	 * expected.  See comment associated with FALLOC_FL_PUNCH_HOLE call.
+	 */
+	if (madvise(addr, NR_HUGE_PAGES * huge_page_size, MADV_REMOVE)) {
+		perror("madvise");
+		exit(1);
+	}
+	validate_free_pages(free_hugepages);
+
+	(void)munmap(addr, NR_HUGE_PAGES * huge_page_size);
+	(void)munmap(addr2, NR_HUGE_PAGES * huge_page_size);
+
+	close(fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/hugetlb-read-hwpoison.c b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c
new file mode 100644
index 000000000000..46230462ad48
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb-read-hwpoison.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <linux/magic.h>
+#include <sys/mman.h>
+#include <sys/statfs.h>
+#include <errno.h>
+#include <stdbool.h>
+
+#include "kselftest.h"
+
+#define PREFIX " ... "
+#define ERROR_PREFIX " !!! "
+
+#define MAX_WRITE_READ_CHUNK_SIZE (getpagesize() * 16)
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+
+enum test_status {
+	TEST_PASSED = 0,
+	TEST_FAILED = 1,
+	TEST_SKIPPED = 2,
+};
+
+static char *status_to_str(enum test_status status)
+{
+	switch (status) {
+	case TEST_PASSED:
+		return "TEST_PASSED";
+	case TEST_FAILED:
+		return "TEST_FAILED";
+	case TEST_SKIPPED:
+		return "TEST_SKIPPED";
+	default:
+		return "TEST_???";
+	}
+}
+
+static int setup_filemap(char *filemap, size_t len, size_t wr_chunk_size)
+{
+	char iter = 0;
+
+	for (size_t offset = 0; offset < len;
+	     offset += wr_chunk_size) {
+		iter++;
+		memset(filemap + offset, iter, wr_chunk_size);
+	}
+
+	return 0;
+}
+
+static bool verify_chunk(char *buf, size_t len, char val)
+{
+	size_t i;
+
+	for (i = 0; i < len; ++i) {
+		if (buf[i] != val) {
+			printf(PREFIX ERROR_PREFIX "check fail: buf[%lu] = %u != %u\n",
+				i, buf[i], val);
+			return false;
+		}
+	}
+
+	return true;
+}
+
+static bool seek_read_hugepage_filemap(int fd, size_t len, size_t wr_chunk_size,
+				       off_t offset, size_t expected)
+{
+	char buf[MAX_WRITE_READ_CHUNK_SIZE];
+	ssize_t ret_count = 0;
+	ssize_t total_ret_count = 0;
+	char val = offset / wr_chunk_size + offset % wr_chunk_size;
+
+	printf(PREFIX PREFIX "init val=%u with offset=0x%lx\n", val, offset);
+	printf(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
+	       expected);
+	if (lseek(fd, offset, SEEK_SET) < 0) {
+		perror(PREFIX ERROR_PREFIX "seek failed");
+		return false;
+	}
+
+	while (offset + total_ret_count < len) {
+		ret_count = read(fd, buf, wr_chunk_size);
+		if (ret_count == 0) {
+			printf(PREFIX PREFIX "read reach end of the file\n");
+			break;
+		} else if (ret_count < 0) {
+			perror(PREFIX ERROR_PREFIX "read failed");
+			break;
+		}
+		++val;
+		if (!verify_chunk(buf, ret_count, val))
+			return false;
+
+		total_ret_count += ret_count;
+	}
+	printf(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
+	       total_ret_count);
+
+	return total_ret_count == expected;
+}
+
+static bool read_hugepage_filemap(int fd, size_t len,
+				  size_t wr_chunk_size, size_t expected)
+{
+	char buf[MAX_WRITE_READ_CHUNK_SIZE];
+	ssize_t ret_count = 0;
+	ssize_t total_ret_count = 0;
+	char val = 0;
+
+	printf(PREFIX PREFIX "expect to read 0x%lx bytes of data in total\n",
+	       expected);
+	while (total_ret_count < len) {
+		ret_count = read(fd, buf, wr_chunk_size);
+		if (ret_count == 0) {
+			printf(PREFIX PREFIX "read reach end of the file\n");
+			break;
+		} else if (ret_count < 0) {
+			perror(PREFIX ERROR_PREFIX "read failed");
+			break;
+		}
+		++val;
+		if (!verify_chunk(buf, ret_count, val))
+			return false;
+
+		total_ret_count += ret_count;
+	}
+	printf(PREFIX PREFIX "actually read 0x%lx bytes of data in total\n",
+	       total_ret_count);
+
+	return total_ret_count == expected;
+}
+
+static enum test_status
+test_hugetlb_read(int fd, size_t len, size_t wr_chunk_size)
+{
+	enum test_status status = TEST_SKIPPED;
+	char *filemap = NULL;
+
+	if (ftruncate(fd, len) < 0) {
+		perror(PREFIX ERROR_PREFIX "ftruncate failed");
+		return status;
+	}
+
+	filemap = mmap(NULL, len, PROT_READ | PROT_WRITE,
+		       MAP_SHARED | MAP_POPULATE, fd, 0);
+	if (filemap == MAP_FAILED) {
+		perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
+		goto done;
+	}
+
+	setup_filemap(filemap, len, wr_chunk_size);
+	status = TEST_FAILED;
+
+	if (read_hugepage_filemap(fd, len, wr_chunk_size, len))
+		status = TEST_PASSED;
+
+	munmap(filemap, len);
+done:
+	if (ftruncate(fd, 0) < 0) {
+		perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
+		status = TEST_FAILED;
+	}
+
+	return status;
+}
+
+static enum test_status
+test_hugetlb_read_hwpoison(int fd, size_t len, size_t wr_chunk_size,
+			   bool skip_hwpoison_page)
+{
+	enum test_status status = TEST_SKIPPED;
+	char *filemap = NULL;
+	char *hwp_addr = NULL;
+	const unsigned long pagesize = getpagesize();
+
+	if (ftruncate(fd, len) < 0) {
+		perror(PREFIX ERROR_PREFIX "ftruncate failed");
+		return status;
+	}
+
+	filemap = mmap(NULL, len, PROT_READ | PROT_WRITE,
+		       MAP_SHARED | MAP_POPULATE, fd, 0);
+	if (filemap == MAP_FAILED) {
+		perror(PREFIX ERROR_PREFIX "mmap for primary mapping failed");
+		goto done;
+	}
+
+	setup_filemap(filemap, len, wr_chunk_size);
+	status = TEST_FAILED;
+
+	/*
+	 * Poisoned hugetlb page layout (assume hugepagesize=2MB):
+	 * |<---------------------- 1MB ---------------------->|
+	 * |<---- healthy page ---->|<---- HWPOISON page ----->|
+	 * |<------------------- (1MB - 8KB) ----------------->|
+	 */
+	hwp_addr = filemap + len / 2 + pagesize;
+	if (madvise(hwp_addr, pagesize, MADV_HWPOISON) < 0) {
+		perror(PREFIX ERROR_PREFIX "MADV_HWPOISON failed");
+		goto unmap;
+	}
+
+	if (!skip_hwpoison_page) {
+		/*
+		 * Userspace should be able to read (1MB + 1 page) from
+		 * the beginning of the HWPOISONed hugepage.
+		 */
+		if (read_hugepage_filemap(fd, len, wr_chunk_size,
+					  len / 2 + pagesize))
+			status = TEST_PASSED;
+	} else {
+		/*
+		 * Userspace should be able to read (1MB - 2 pages) from
+		 * HWPOISONed hugepage.
+		 */
+		if (seek_read_hugepage_filemap(fd, len, wr_chunk_size,
+					       len / 2 + MAX(2 * pagesize, wr_chunk_size),
+					       len / 2 - MAX(2 * pagesize, wr_chunk_size)))
+			status = TEST_PASSED;
+	}
+
+unmap:
+	munmap(filemap, len);
+done:
+	if (ftruncate(fd, 0) < 0) {
+		perror(PREFIX ERROR_PREFIX "ftruncate back to 0 failed");
+		status = TEST_FAILED;
+	}
+
+	return status;
+}
+
+static int create_hugetlbfs_file(struct statfs *file_stat)
+{
+	int fd;
+
+	fd = memfd_create("hugetlb_tmp", MFD_HUGETLB);
+	if (fd < 0) {
+		perror(PREFIX ERROR_PREFIX "could not open hugetlbfs file");
+		return -1;
+	}
+
+	memset(file_stat, 0, sizeof(*file_stat));
+	if (fstatfs(fd, file_stat)) {
+		perror(PREFIX ERROR_PREFIX "fstatfs failed");
+		goto close;
+	}
+	if (file_stat->f_type != HUGETLBFS_MAGIC) {
+		printf(PREFIX ERROR_PREFIX "not hugetlbfs file\n");
+		goto close;
+	}
+
+	return fd;
+close:
+	close(fd);
+	return -1;
+}
+
+int main(void)
+{
+	int fd;
+	struct statfs file_stat;
+	enum test_status status;
+	/* Test read() in different granularity. */
+	size_t wr_chunk_sizes[] = {
+		getpagesize() / 2, getpagesize(),
+		getpagesize() * 2, getpagesize() * 4
+	};
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(wr_chunk_sizes); ++i) {
+		printf("Write/read chunk size=0x%lx\n",
+		       wr_chunk_sizes[i]);
+
+		fd = create_hugetlbfs_file(&file_stat);
+		if (fd < 0)
+			goto create_failure;
+		printf(PREFIX "HugeTLB read regression test...\n");
+		status = test_hugetlb_read(fd, file_stat.f_bsize,
+					   wr_chunk_sizes[i]);
+		printf(PREFIX "HugeTLB read regression test...%s\n",
+		       status_to_str(status));
+		close(fd);
+		if (status == TEST_FAILED)
+			return -1;
+
+		fd = create_hugetlbfs_file(&file_stat);
+		if (fd < 0)
+			goto create_failure;
+		printf(PREFIX "HugeTLB read HWPOISON test...\n");
+		status = test_hugetlb_read_hwpoison(fd, file_stat.f_bsize,
+						    wr_chunk_sizes[i], false);
+		printf(PREFIX "HugeTLB read HWPOISON test...%s\n",
+		       status_to_str(status));
+		close(fd);
+		if (status == TEST_FAILED)
+			return -1;
+
+		fd = create_hugetlbfs_file(&file_stat);
+		if (fd < 0)
+			goto create_failure;
+		printf(PREFIX "HugeTLB seek then read HWPOISON test...\n");
+		status = test_hugetlb_read_hwpoison(fd, file_stat.f_bsize,
+						    wr_chunk_sizes[i], true);
+		printf(PREFIX "HugeTLB seek then read HWPOISON test...%s\n",
+		       status_to_str(status));
+		close(fd);
+		if (status == TEST_FAILED)
+			return -1;
+	}
+
+	return 0;
+
+create_failure:
+	printf(ERROR_PREFIX "Abort test: failed to create hugetlbfs file\n");
+	return -1;
+}
diff --git a/tools/testing/selftests/mm/hugetlb-soft-offline.c b/tools/testing/selftests/mm/hugetlb-soft-offline.c
new file mode 100644
index 000000000000..a8bc02688085
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb-soft-offline.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test soft offline behavior for HugeTLB pages:
+ * - if enable_soft_offline = 0, hugepages should stay intact and soft
+ *   offlining failed with EOPNOTSUPP.
+ * - if enable_soft_offline = 1, a hugepage should be dissolved and
+ *   nr_hugepages/free_hugepages should be reduced by 1.
+ *
+ * Before running, make sure more than 2 hugepages of default_hugepagesz
+ * are allocated. For example, if /proc/meminfo/Hugepagesize is 2048kB:
+ *   echo 8 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <linux/magic.h>
+#include <linux/memfd.h>
+#include <sys/mman.h>
+#include <sys/statfs.h>
+#include <sys/types.h>
+
+#include "kselftest.h"
+
+#ifndef MADV_SOFT_OFFLINE
+#define MADV_SOFT_OFFLINE 101
+#endif
+
+#define EPREFIX " !!! "
+
+static int do_soft_offline(int fd, size_t len, int expect_errno)
+{
+	char *filemap = NULL;
+	char *hwp_addr = NULL;
+	const unsigned long pagesize = getpagesize();
+	int ret = 0;
+
+	if (ftruncate(fd, len) < 0) {
+		ksft_perror(EPREFIX "ftruncate to len failed");
+		return -1;
+	}
+
+	filemap = mmap(NULL, len, PROT_READ | PROT_WRITE,
+		       MAP_SHARED | MAP_POPULATE, fd, 0);
+	if (filemap == MAP_FAILED) {
+		ksft_perror(EPREFIX "mmap failed");
+		ret = -1;
+		goto untruncate;
+	}
+
+	memset(filemap, 0xab, len);
+	ksft_print_msg("Allocated %#lx bytes of hugetlb pages\n", len);
+
+	hwp_addr = filemap + len / 2;
+	ret = madvise(hwp_addr, pagesize, MADV_SOFT_OFFLINE);
+	ksft_print_msg("MADV_SOFT_OFFLINE %p ret=%d, errno=%d\n",
+		       hwp_addr, ret, errno);
+	if (ret != 0)
+		ksft_perror(EPREFIX "madvise failed");
+
+	if (errno == expect_errno)
+		ret = 0;
+	else {
+		ksft_print_msg("MADV_SOFT_OFFLINE should ret %d\n",
+			       expect_errno);
+		ret = -1;
+	}
+
+	munmap(filemap, len);
+untruncate:
+	if (ftruncate(fd, 0) < 0)
+		ksft_perror(EPREFIX "ftruncate back to 0 failed");
+
+	return ret;
+}
+
+static int set_enable_soft_offline(int value)
+{
+	char cmd[256] = {0};
+	FILE *cmdfile = NULL;
+
+	if (value != 0 && value != 1)
+		return -EINVAL;
+
+	sprintf(cmd, "echo %d > /proc/sys/vm/enable_soft_offline", value);
+	cmdfile = popen(cmd, "r");
+
+	if (cmdfile)
+		ksft_print_msg("enable_soft_offline => %d\n", value);
+	else {
+		ksft_perror(EPREFIX "failed to set enable_soft_offline");
+		return errno;
+	}
+
+	pclose(cmdfile);
+	return 0;
+}
+
+static int read_nr_hugepages(unsigned long hugepage_size,
+			     unsigned long *nr_hugepages)
+{
+	char buffer[256] = {0};
+	char cmd[256] = {0};
+
+	sprintf(cmd, "cat /sys/kernel/mm/hugepages/hugepages-%ldkB/nr_hugepages",
+		hugepage_size);
+	FILE *cmdfile = popen(cmd, "r");
+
+	if (cmdfile == NULL) {
+		ksft_perror(EPREFIX "failed to popen nr_hugepages");
+		return -1;
+	}
+
+	if (!fgets(buffer, sizeof(buffer), cmdfile)) {
+		ksft_perror(EPREFIX "failed to read nr_hugepages");
+		pclose(cmdfile);
+		return -1;
+	}
+
+	*nr_hugepages = atoll(buffer);
+	pclose(cmdfile);
+	return 0;
+}
+
+static int create_hugetlbfs_file(struct statfs *file_stat)
+{
+	int fd;
+
+	fd = memfd_create("hugetlb_tmp", MFD_HUGETLB);
+	if (fd < 0) {
+		ksft_perror(EPREFIX "could not open hugetlbfs file");
+		return -1;
+	}
+
+	memset(file_stat, 0, sizeof(*file_stat));
+	if (fstatfs(fd, file_stat)) {
+		ksft_perror(EPREFIX "fstatfs failed");
+		goto close;
+	}
+	if (file_stat->f_type != HUGETLBFS_MAGIC) {
+		ksft_print_msg(EPREFIX "not hugetlbfs file\n");
+		goto close;
+	}
+
+	return fd;
+close:
+	close(fd);
+	return -1;
+}
+
+static void test_soft_offline_common(int enable_soft_offline)
+{
+	int fd;
+	int expect_errno = enable_soft_offline ? 0 : EOPNOTSUPP;
+	struct statfs file_stat;
+	unsigned long hugepagesize_kb = 0;
+	unsigned long nr_hugepages_before = 0;
+	unsigned long nr_hugepages_after = 0;
+	int ret;
+
+	ksft_print_msg("Test soft-offline when enabled_soft_offline=%d\n",
+		       enable_soft_offline);
+
+	fd = create_hugetlbfs_file(&file_stat);
+	if (fd < 0)
+		ksft_exit_fail_msg("Failed to create hugetlbfs file\n");
+
+	hugepagesize_kb = file_stat.f_bsize / 1024;
+	ksft_print_msg("Hugepagesize is %ldkB\n", hugepagesize_kb);
+
+	if (set_enable_soft_offline(enable_soft_offline) != 0) {
+		close(fd);
+		ksft_exit_fail_msg("Failed to set enable_soft_offline\n");
+	}
+
+	if (read_nr_hugepages(hugepagesize_kb, &nr_hugepages_before) != 0) {
+		close(fd);
+		ksft_exit_fail_msg("Failed to read nr_hugepages\n");
+	}
+
+	ksft_print_msg("Before MADV_SOFT_OFFLINE nr_hugepages=%ld\n",
+		       nr_hugepages_before);
+
+	ret = do_soft_offline(fd, 2 * file_stat.f_bsize, expect_errno);
+
+	if (read_nr_hugepages(hugepagesize_kb, &nr_hugepages_after) != 0) {
+		close(fd);
+		ksft_exit_fail_msg("Failed to read nr_hugepages\n");
+	}
+
+	ksft_print_msg("After MADV_SOFT_OFFLINE nr_hugepages=%ld\n",
+		nr_hugepages_after);
+
+	// No need for the hugetlbfs file from now on.
+	close(fd);
+
+	if (enable_soft_offline) {
+		if (nr_hugepages_before != nr_hugepages_after + 1) {
+			ksft_test_result_fail("MADV_SOFT_OFFLINE should reduced 1 hugepage\n");
+			return;
+		}
+	} else {
+		if (nr_hugepages_before != nr_hugepages_after) {
+			ksft_test_result_fail("MADV_SOFT_OFFLINE reduced %lu hugepages\n",
+				nr_hugepages_before - nr_hugepages_after);
+			return;
+		}
+	}
+
+	ksft_test_result(ret == 0,
+			 "Test soft-offline when enabled_soft_offline=%d\n",
+			 enable_soft_offline);
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(2);
+
+	test_soft_offline_common(1);
+	test_soft_offline_common(0);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/hugetlb_dio.c b/tools/testing/selftests/mm/hugetlb_dio.c
new file mode 100644
index 000000000000..9ac62eb4c97d
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb_dio.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This program tests for hugepage leaks after DIO writes to a file using a
+ * hugepage as the user buffer. During DIO, the user buffer is pinned and
+ * should be properly unpinned upon completion. This patch verifies that the
+ * kernel correctly unpins the buffer at DIO completion for both aligned and
+ * unaligned user buffer offsets (w.r.t page boundary), ensuring the hugepage
+ * is freed upon unmapping.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/mman.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+void run_dio_using_hugetlb(unsigned int start_off, unsigned int end_off)
+{
+	int fd;
+	char *buffer =  NULL;
+	char *orig_buffer = NULL;
+	size_t h_pagesize = 0;
+	size_t writesize;
+	int free_hpage_b = 0;
+	int free_hpage_a = 0;
+	const int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB;
+	const int mmap_prot  = PROT_READ | PROT_WRITE;
+
+	writesize = end_off - start_off;
+
+	/* Get the default huge page size */
+	h_pagesize = default_huge_page_size();
+	if (!h_pagesize)
+		ksft_exit_fail_msg("Unable to determine huge page size\n");
+
+	/* Open the file to DIO */
+	fd = open("/tmp", O_TMPFILE | O_RDWR | O_DIRECT, 0664);
+	if (fd < 0)
+		ksft_exit_fail_perror("Error opening file\n");
+
+	/* Get the free huge pages before allocation */
+	free_hpage_b = get_free_hugepages();
+	if (free_hpage_b == 0) {
+		close(fd);
+		ksft_exit_skip("No free hugepage, exiting!\n");
+	}
+
+	/* Allocate a hugetlb page */
+	orig_buffer = mmap(NULL, h_pagesize, mmap_prot, mmap_flags, -1, 0);
+	if (orig_buffer == MAP_FAILED) {
+		close(fd);
+		ksft_exit_fail_perror("Error mapping memory\n");
+	}
+	buffer = orig_buffer;
+	buffer += start_off;
+
+	memset(buffer, 'A', writesize);
+
+	/* Write the buffer to the file */
+	if (write(fd, buffer, writesize) != (writesize)) {
+		munmap(orig_buffer, h_pagesize);
+		close(fd);
+		ksft_exit_fail_perror("Error writing to file\n");
+	}
+
+	/* unmap the huge page */
+	munmap(orig_buffer, h_pagesize);
+	close(fd);
+
+	/* Get the free huge pages after unmap*/
+	free_hpage_a = get_free_hugepages();
+
+	ksft_print_msg("No. Free pages before allocation : %d\n", free_hpage_b);
+	ksft_print_msg("No. Free pages after munmap : %d\n", free_hpage_a);
+
+	/*
+	 * If the no. of free hugepages before allocation and after unmap does
+	 * not match - that means there could still be a page which is pinned.
+	 */
+	ksft_test_result(free_hpage_a == free_hpage_b,
+			 "free huge pages from %u-%u\n", start_off, end_off);
+}
+
+int main(void)
+{
+	size_t pagesize = 0;
+	int fd;
+
+	ksft_print_header();
+
+	/* Open the file to DIO */
+	fd = open("/tmp", O_TMPFILE | O_RDWR | O_DIRECT, 0664);
+	if (fd < 0)
+		ksft_exit_skip("Unable to allocate file: %s\n", strerror(errno));
+	close(fd);
+
+	/* Check if huge pages are free */
+	if (!get_free_hugepages())
+		ksft_exit_skip("No free hugepage, exiting\n");
+
+	ksft_set_plan(4);
+
+	/* Get base page size */
+	pagesize  = psize();
+
+	/* start and end is aligned to pagesize */
+	run_dio_using_hugetlb(0, (pagesize * 3));
+
+	/* start is aligned but end is not aligned */
+	run_dio_using_hugetlb(0, (pagesize * 3) - (pagesize / 2));
+
+	/* start is unaligned and end is aligned */
+	run_dio_using_hugetlb(pagesize / 2, (pagesize * 3));
+
+	/* both start and end are unaligned */
+	run_dio_using_hugetlb(pagesize / 2, (pagesize * 3) + (pagesize / 2));
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/hugetlb_fault_after_madv.c b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c
new file mode 100644
index 000000000000..b4b257775b74
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb_fault_after_madv.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <setjmp.h>
+#include <signal.h>
+
+#include "vm_util.h"
+#include "kselftest.h"
+
+#define INLOOP_ITER 100
+
+static char *huge_ptr;
+static size_t huge_page_size;
+
+static sigjmp_buf sigbuf;
+static bool sigbus_triggered;
+
+static void signal_handler(int signal)
+{
+	if (signal == SIGBUS) {
+		sigbus_triggered = true;
+		siglongjmp(sigbuf, 1);
+	}
+}
+
+/* Touch the memory while it is being madvised() */
+void *touch(void *unused)
+{
+	char *ptr = (char *)huge_ptr;
+
+	if (sigsetjmp(sigbuf, 1))
+		return NULL;
+
+	for (int i = 0; i < INLOOP_ITER; i++)
+		ptr[0] = '.';
+
+	return NULL;
+}
+
+void *madv(void *unused)
+{
+	usleep(rand() % 10);
+
+	for (int i = 0; i < INLOOP_ITER; i++)
+		madvise(huge_ptr, huge_page_size, MADV_DONTNEED);
+
+	return NULL;
+}
+
+int main(void)
+{
+	unsigned long free_hugepages;
+	pthread_t thread1, thread2;
+	/*
+	 * On kernel 6.4, we are able to reproduce the problem with ~1000
+	 * interactions
+	 */
+	int max = 10000;
+	int err;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	srand(getpid());
+
+	if (signal(SIGBUS, signal_handler) == SIG_ERR)
+		ksft_exit_skip("Could not register signal handler.");
+
+	huge_page_size = default_huge_page_size();
+	if (!huge_page_size)
+		ksft_exit_skip("Could not detect default hugetlb page size.");
+
+	ksft_print_msg("[INFO] detected default hugetlb page size: %zu KiB\n",
+		       huge_page_size / 1024);
+
+	free_hugepages = get_free_hugepages();
+	if (free_hugepages != 1) {
+		ksft_exit_skip("This test needs one and only one page to execute. Got %lu\n",
+			       free_hugepages);
+	}
+
+	while (max--) {
+		huge_ptr = mmap(NULL, huge_page_size, PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+				-1, 0);
+
+		if ((unsigned long)huge_ptr == -1)
+			ksft_exit_skip("Failed to allocated huge page\n");
+
+		pthread_create(&thread1, NULL, madv, NULL);
+		pthread_create(&thread2, NULL, touch, NULL);
+
+		pthread_join(thread1, NULL);
+		pthread_join(thread2, NULL);
+		munmap(huge_ptr, huge_page_size);
+	}
+
+	ksft_test_result(!sigbus_triggered, "SIGBUS behavior\n");
+
+	err = ksft_get_fail_cnt();
+	if (err)
+		ksft_exit_fail_msg("%d out of %d tests failed\n",
+				   err, ksft_test_num());
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/hugetlb_madv_vs_map.c b/tools/testing/selftests/mm/hugetlb_madv_vs_map.c
new file mode 100644
index 000000000000..efd774b41389
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb_madv_vs_map.c
@@ -0,0 +1,126 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A test case that must run on a system with one and only one huge page available.
+ *	# echo 1 > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+ *
+ * During setup, the test allocates the only available page, and starts three threads:
+ *  - thread1:
+ *	* madvise(MADV_DONTNEED) on the allocated huge page
+ *  - thread 2:
+ *	* Write to the allocated huge page
+ *  - thread 3:
+ *	* Try to allocated an extra huge page (which must not available)
+ *
+ *  The test fails if thread3 is able to allocate a page.
+ *
+ *  Touching the first page after thread3's allocation will raise a SIGBUS
+ *
+ *  Author: Breno Leitao <leitao@debian.org>
+ */
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "vm_util.h"
+#include "kselftest.h"
+
+#define INLOOP_ITER 100
+
+size_t mmap_size;
+char *huge_ptr;
+
+/* Touch the memory while it is being madvised() */
+void *touch(void *unused)
+{
+	for (int i = 0; i < INLOOP_ITER; i++)
+		huge_ptr[0] = '.';
+
+	return NULL;
+}
+
+void *madv(void *unused)
+{
+	for (int i = 0; i < INLOOP_ITER; i++)
+		madvise(huge_ptr, mmap_size, MADV_DONTNEED);
+
+	return NULL;
+}
+
+/*
+ * We got here, and there must be no huge page available for mapping
+ * The other hugepage should be flipping from used <-> reserved, because
+ * of madvise(DONTNEED).
+ */
+void *map_extra(void *unused)
+{
+	void *ptr;
+
+	for (int i = 0; i < INLOOP_ITER; i++) {
+		ptr = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+			   -1, 0);
+
+		if ((long)ptr != -1) {
+			/* Touching the other page now will cause a SIGBUG
+			 * huge_ptr[0] = '1';
+			 */
+			return ptr;
+		}
+	}
+
+	return NULL;
+}
+
+int main(void)
+{
+	pthread_t thread1, thread2, thread3;
+	unsigned long free_hugepages;
+	void *ret;
+
+	/*
+	 * On kernel 6.7, we are able to reproduce the problem with ~10
+	 * interactions
+	 */
+	int max = 10;
+
+	free_hugepages = get_free_hugepages();
+
+	if (free_hugepages != 1) {
+		ksft_exit_skip("This test needs one and only one page to execute. Got %lu\n",
+			       free_hugepages);
+	}
+
+	mmap_size = default_huge_page_size();
+
+	while (max--) {
+		huge_ptr = mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB,
+				-1, 0);
+
+		if ((unsigned long)huge_ptr == -1) {
+			ksft_test_result_fail("Failed to allocate huge page\n");
+			return KSFT_FAIL;
+		}
+
+		pthread_create(&thread1, NULL, madv, NULL);
+		pthread_create(&thread2, NULL, touch, NULL);
+		pthread_create(&thread3, NULL, map_extra, NULL);
+
+		pthread_join(thread1, NULL);
+		pthread_join(thread2, NULL);
+		pthread_join(thread3, &ret);
+
+		if (ret) {
+			ksft_test_result_fail("Unexpected huge page allocation\n");
+			return KSFT_FAIL;
+		}
+
+		/* Unmap and restart */
+		munmap(huge_ptr, mmap_size);
+	}
+
+	return KSFT_PASS;
+}
diff --git a/tools/testing/selftests/mm/hugetlb_reparenting_test.sh b/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
new file mode 100755
index 000000000000..0dd31892ff67
--- /dev/null
+++ b/tools/testing/selftests/mm/hugetlb_reparenting_test.sh
@@ -0,0 +1,243 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+set -e
+
+if [[ $(id -u) -ne 0 ]]; then
+  echo "This test must be run as root. Skipping..."
+  exit $ksft_skip
+fi
+
+nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+usage_file=usage_in_bytes
+
+if [[ "$1" == "-cgroup-v2" ]]; then
+  cgroup2=1
+  usage_file=current
+fi
+
+
+if [[ $cgroup2 ]]; then
+  CGROUP_ROOT=$(mount -t cgroup2 | head -1 | awk '{print $3}')
+  if [[ -z "$CGROUP_ROOT" ]]; then
+    CGROUP_ROOT=$(mktemp -d)
+    mount -t cgroup2 none $CGROUP_ROOT
+    do_umount=1
+  fi
+  echo "+hugetlb +memory" >$CGROUP_ROOT/cgroup.subtree_control
+else
+  CGROUP_ROOT=$(mount -t cgroup | grep ",hugetlb" | awk '{print $3}')
+  if [[ -z "$CGROUP_ROOT" ]]; then
+    CGROUP_ROOT=/dev/cgroup/memory
+    mount -t cgroup memory,hugetlb $CGROUP_ROOT
+    do_umount=1
+  fi
+fi
+MNT='/mnt/huge'
+
+function get_machine_hugepage_size() {
+  hpz=$(grep -i hugepagesize /proc/meminfo)
+  kb=${hpz:14:-3}
+  mb=$(($kb / 1024))
+  echo $mb
+}
+
+MB=$(get_machine_hugepage_size)
+
+function cleanup() {
+  echo cleanup
+  set +e
+  rm -rf "$MNT"/* 2>/dev/null
+  umount "$MNT" 2>/dev/null
+  rmdir "$MNT" 2>/dev/null
+  rmdir "$CGROUP_ROOT"/a/b 2>/dev/null
+  rmdir "$CGROUP_ROOT"/a 2>/dev/null
+  rmdir "$CGROUP_ROOT"/test1 2>/dev/null
+  echo $nr_hugepgs >/proc/sys/vm/nr_hugepages
+  set -e
+}
+
+function assert_with_retry() {
+  local actual_path="$1"
+  local expected="$2"
+  local tolerance=$((7 * 1024 * 1024))
+  local timeout=20
+  local interval=1
+  local start_time
+  local now
+  local elapsed
+  local actual
+
+  start_time=$(date +%s)
+
+  while true; do
+    actual="$(cat "$actual_path")"
+
+    if [[ $actual -ge $(($expected - $tolerance)) ]] &&
+        [[ $actual -le $(($expected + $tolerance)) ]]; then
+      return 0
+    fi
+
+    now=$(date +%s)
+    elapsed=$((now - start_time))
+
+    if [[ $elapsed -ge $timeout ]]; then
+      echo "actual = $((${actual%% *} / 1024 / 1024)) MB"
+      echo "expected = $((${expected%% *} / 1024 / 1024)) MB"
+      cleanup
+      exit 1
+    fi
+
+    sleep $interval
+  done
+}
+
+function assert_state() {
+  local expected_a="$1"
+  local expected_a_hugetlb="$2"
+  local expected_b=""
+  local expected_b_hugetlb=""
+
+  if [ ! -z ${3:-} ] && [ ! -z ${4:-} ]; then
+    expected_b="$3"
+    expected_b_hugetlb="$4"
+  fi
+
+  assert_with_retry "$CGROUP_ROOT/a/memory.$usage_file" "$expected_a"
+  assert_with_retry "$CGROUP_ROOT/a/hugetlb.${MB}MB.$usage_file" "$expected_a_hugetlb"
+
+  if [[ -n "$expected_b" && -n "$expected_b_hugetlb" ]]; then
+    assert_with_retry "$CGROUP_ROOT/a/b/memory.$usage_file" "$expected_b"
+    assert_with_retry "$CGROUP_ROOT/a/b/hugetlb.${MB}MB.$usage_file" "$expected_b_hugetlb"
+  fi
+}
+
+function setup() {
+  echo 100 >/proc/sys/vm/nr_hugepages
+  mkdir "$CGROUP_ROOT"/a
+  sleep 1
+  if [[ $cgroup2 ]]; then
+    echo "+hugetlb +memory" >$CGROUP_ROOT/a/cgroup.subtree_control
+  else
+    echo 0 >$CGROUP_ROOT/a/cpuset.mems
+    echo 0 >$CGROUP_ROOT/a/cpuset.cpus
+  fi
+
+  mkdir "$CGROUP_ROOT"/a/b
+
+  if [[ ! $cgroup2 ]]; then
+    echo 0 >$CGROUP_ROOT/a/b/cpuset.mems
+    echo 0 >$CGROUP_ROOT/a/b/cpuset.cpus
+  fi
+
+  mkdir -p "$MNT"
+  mount -t hugetlbfs none "$MNT"
+}
+
+write_hugetlbfs() {
+  local cgroup="$1"
+  local path="$2"
+  local size="$3"
+
+  if [[ $cgroup2 ]]; then
+    echo $$ >$CGROUP_ROOT/$cgroup/cgroup.procs
+  else
+    echo 0 >$CGROUP_ROOT/$cgroup/cpuset.mems
+    echo 0 >$CGROUP_ROOT/$cgroup/cpuset.cpus
+    echo $$ >"$CGROUP_ROOT/$cgroup/tasks"
+  fi
+  ./write_to_hugetlbfs -p "$path" -s "$size" -m 0 -o
+  if [[ $cgroup2 ]]; then
+    echo $$ >$CGROUP_ROOT/cgroup.procs
+  else
+    echo $$ >"$CGROUP_ROOT/tasks"
+  fi
+  echo
+}
+
+set -e
+
+size=$((${MB} * 1024 * 1024 * 25)) # 50MB = 25 * 2MB hugepages.
+
+cleanup
+
+echo
+echo Test charge, rmdir, uncharge
+setup
+echo mkdir
+mkdir $CGROUP_ROOT/test1
+
+echo write
+write_hugetlbfs test1 "$MNT"/test $size
+
+echo rmdir
+rmdir $CGROUP_ROOT/test1
+mkdir $CGROUP_ROOT/test1
+
+echo uncharge
+rm -rf /mnt/huge/*
+
+cleanup
+
+echo done
+echo
+if [[ ! $cgroup2 ]]; then
+  echo "Test parent and child hugetlb usage"
+  setup
+
+  echo write
+  write_hugetlbfs a "$MNT"/test $size
+
+  echo Assert memory charged correctly for parent use.
+  assert_state 0 $size 0 0
+
+  write_hugetlbfs a/b "$MNT"/test2 $size
+
+  echo Assert memory charged correctly for child use.
+  assert_state 0 $(($size * 2)) 0 $size
+
+  rmdir "$CGROUP_ROOT"/a/b
+  echo Assert memory reparent correctly.
+  assert_state 0 $(($size * 2))
+
+  rm -rf "$MNT"/*
+  umount "$MNT"
+  echo Assert memory uncharged correctly.
+  assert_state 0 0
+
+  cleanup
+fi
+
+echo
+echo "Test child only hugetlb usage"
+echo setup
+setup
+
+echo write
+write_hugetlbfs a/b "$MNT"/test2 $size
+
+echo Assert memory charged correctly for child only use.
+assert_state 0 $(($size)) 0 $size
+
+rmdir "$CGROUP_ROOT"/a/b
+echo Assert memory reparent correctly.
+assert_state 0 $size
+
+rm -rf "$MNT"/*
+umount "$MNT"
+echo Assert memory uncharged correctly.
+assert_state 0 0
+
+cleanup
+
+echo ALL PASS
+
+if [[ $do_umount ]]; then
+  umount $CGROUP_ROOT
+  rm -rf $CGROUP_ROOT
+fi
+
+echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
diff --git a/tools/testing/selftests/mm/khugepaged.c b/tools/testing/selftests/mm/khugepaged.c
new file mode 100644
index 000000000000..3fe7ef04ac62
--- /dev/null
+++ b/tools/testing/selftests/mm/khugepaged.c
@@ -0,0 +1,1290 @@
+#define _GNU_SOURCE
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <dirent.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <sys/vfs.h>
+
+#include "linux/magic.h"
+
+#include "vm_util.h"
+#include "thp_settings.h"
+
+#define BASE_ADDR ((void *)(1UL << 30))
+static unsigned long hpage_pmd_size;
+static unsigned long page_size;
+static int hpage_pmd_nr;
+static int anon_order;
+
+#define PID_SMAPS "/proc/self/smaps"
+#define TEST_FILE "collapse_test_file"
+
+#define MAX_LINE_LENGTH 500
+
+enum vma_type {
+	VMA_ANON,
+	VMA_FILE,
+	VMA_SHMEM,
+};
+
+struct mem_ops {
+	void *(*setup_area)(int nr_hpages);
+	void (*cleanup_area)(void *p, unsigned long size);
+	void (*fault)(void *p, unsigned long start, unsigned long end);
+	bool (*check_huge)(void *addr, int nr_hpages);
+	const char *name;
+};
+
+static struct mem_ops *file_ops;
+static struct mem_ops *anon_ops;
+static struct mem_ops *shmem_ops;
+
+struct collapse_context {
+	void (*collapse)(const char *msg, char *p, int nr_hpages,
+			 struct mem_ops *ops, bool expect);
+	bool enforce_pte_scan_limits;
+	const char *name;
+};
+
+static struct collapse_context *khugepaged_context;
+static struct collapse_context *madvise_context;
+
+struct file_info {
+	const char *dir;
+	char path[PATH_MAX];
+	enum vma_type type;
+	int fd;
+	char dev_queue_read_ahead_path[PATH_MAX];
+};
+
+static struct file_info finfo;
+static bool skip_settings_restore;
+static int exit_status;
+
+static void success(const char *msg)
+{
+	printf(" \e[32m%s\e[0m\n", msg);
+}
+
+static void fail(const char *msg)
+{
+	printf(" \e[31m%s\e[0m\n", msg);
+	exit_status++;
+}
+
+static void skip(const char *msg)
+{
+	printf(" \e[33m%s\e[0m\n", msg);
+}
+
+static void restore_settings_atexit(void)
+{
+	if (skip_settings_restore)
+		return;
+
+	printf("Restore THP and khugepaged settings...");
+	thp_restore_settings();
+	success("OK");
+
+	skip_settings_restore = true;
+}
+
+static void restore_settings(int sig)
+{
+	/* exit() will invoke the restore_settings_atexit handler. */
+	exit(sig ? EXIT_FAILURE : exit_status);
+}
+
+static void save_settings(void)
+{
+	printf("Save THP and khugepaged settings...");
+	if (file_ops && finfo.type == VMA_FILE)
+		thp_set_read_ahead_path(finfo.dev_queue_read_ahead_path);
+	thp_save_settings();
+
+	success("OK");
+
+	atexit(restore_settings_atexit);
+	signal(SIGTERM, restore_settings);
+	signal(SIGINT, restore_settings);
+	signal(SIGHUP, restore_settings);
+	signal(SIGQUIT, restore_settings);
+}
+
+static void get_finfo(const char *dir)
+{
+	struct stat path_stat;
+	struct statfs fs;
+	char buf[1 << 10];
+	char path[PATH_MAX];
+	char *str, *end;
+
+	finfo.dir = dir;
+	stat(finfo.dir, &path_stat);
+	if (!S_ISDIR(path_stat.st_mode)) {
+		printf("%s: Not a directory (%s)\n", __func__, finfo.dir);
+		exit(EXIT_FAILURE);
+	}
+	if (snprintf(finfo.path, sizeof(finfo.path), "%s/" TEST_FILE,
+		     finfo.dir) >= sizeof(finfo.path)) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	if (statfs(finfo.dir, &fs)) {
+		perror("statfs()");
+		exit(EXIT_FAILURE);
+	}
+	finfo.type = fs.f_type == TMPFS_MAGIC ? VMA_SHMEM : VMA_FILE;
+	if (finfo.type == VMA_SHMEM)
+		return;
+
+	/* Find owning device's queue/read_ahead_kb control */
+	if (snprintf(path, sizeof(path), "/sys/dev/block/%d:%d/uevent",
+		     major(path_stat.st_dev), minor(path_stat.st_dev))
+	    >= sizeof(path)) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	if (read_file(path, buf, sizeof(buf)) < 0) {
+		perror("read_file(read_num)");
+		exit(EXIT_FAILURE);
+	}
+	if (strstr(buf, "DEVTYPE=disk")) {
+		/* Found it */
+		if (snprintf(finfo.dev_queue_read_ahead_path,
+			     sizeof(finfo.dev_queue_read_ahead_path),
+			     "/sys/dev/block/%d:%d/queue/read_ahead_kb",
+			     major(path_stat.st_dev), minor(path_stat.st_dev))
+		    >= sizeof(finfo.dev_queue_read_ahead_path)) {
+			printf("%s: Pathname is too long\n", __func__);
+			exit(EXIT_FAILURE);
+		}
+		return;
+	}
+	if (!strstr(buf, "DEVTYPE=partition")) {
+		printf("%s: Unknown device type: %s\n", __func__, path);
+		exit(EXIT_FAILURE);
+	}
+	/*
+	 * Partition of block device - need to find actual device.
+	 * Using naming convention that devnameN is partition of
+	 * device devname.
+	 */
+	str = strstr(buf, "DEVNAME=");
+	if (!str) {
+		printf("%s: Could not read: %s", __func__, path);
+		exit(EXIT_FAILURE);
+	}
+	str += 8;
+	end = str;
+	while (*end) {
+		if (isdigit(*end)) {
+			*end = '\0';
+			if (snprintf(finfo.dev_queue_read_ahead_path,
+				     sizeof(finfo.dev_queue_read_ahead_path),
+				     "/sys/block/%s/queue/read_ahead_kb",
+				     str) >= sizeof(finfo.dev_queue_read_ahead_path)) {
+				printf("%s: Pathname is too long\n", __func__);
+				exit(EXIT_FAILURE);
+			}
+			return;
+		}
+		++end;
+	}
+	printf("%s: Could not read: %s\n", __func__, path);
+	exit(EXIT_FAILURE);
+}
+
+static bool check_swap(void *addr, unsigned long size)
+{
+	bool swap = false;
+	int ret;
+	FILE *fp;
+	char buffer[MAX_LINE_LENGTH];
+	char addr_pattern[MAX_LINE_LENGTH];
+
+	ret = snprintf(addr_pattern, MAX_LINE_LENGTH, "%08lx-",
+		       (unsigned long) addr);
+	if (ret >= MAX_LINE_LENGTH) {
+		printf("%s: Pattern is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+
+
+	fp = fopen(PID_SMAPS, "r");
+	if (!fp) {
+		printf("%s: Failed to open file %s\n", __func__, PID_SMAPS);
+		exit(EXIT_FAILURE);
+	}
+	if (!check_for_pattern(fp, addr_pattern, buffer, sizeof(buffer)))
+		goto err_out;
+
+	ret = snprintf(addr_pattern, MAX_LINE_LENGTH, "Swap:%19ld kB",
+		       size >> 10);
+	if (ret >= MAX_LINE_LENGTH) {
+		printf("%s: Pattern is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	/*
+	 * Fetch the Swap: in the same block and check whether it got
+	 * the expected number of hugeepages next.
+	 */
+	if (!check_for_pattern(fp, "Swap:", buffer, sizeof(buffer)))
+		goto err_out;
+
+	if (strncmp(buffer, addr_pattern, strlen(addr_pattern)))
+		goto err_out;
+
+	swap = true;
+err_out:
+	fclose(fp);
+	return swap;
+}
+
+static void *alloc_mapping(int nr)
+{
+	void *p;
+
+	p = mmap(BASE_ADDR, nr * hpage_pmd_size, PROT_READ | PROT_WRITE,
+		 MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (p != BASE_ADDR) {
+		printf("Failed to allocate VMA at %p\n", BASE_ADDR);
+		exit(EXIT_FAILURE);
+	}
+
+	return p;
+}
+
+static void fill_memory(int *p, unsigned long start, unsigned long end)
+{
+	int i;
+
+	for (i = start / page_size; i < end / page_size; i++)
+		p[i * page_size / sizeof(*p)] = i + 0xdead0000;
+}
+
+/*
+ * MADV_COLLAPSE is a best-effort request and may fail if an internal
+ * resource is temporarily unavailable, in which case it will set errno to
+ * EAGAIN.  In such a case, immediately reattempt the operation one more
+ * time.
+ */
+static int madvise_collapse_retry(void *p, unsigned long size)
+{
+	bool retry = true;
+	int ret;
+
+retry:
+	ret = madvise(p, size, MADV_COLLAPSE);
+	if (ret && errno == EAGAIN && retry) {
+		retry = false;
+		goto retry;
+	}
+	return ret;
+}
+
+/*
+ * Returns pmd-mapped hugepage in VMA marked VM_HUGEPAGE, filled with
+ * validate_memory()'able contents.
+ */
+static void *alloc_hpage(struct mem_ops *ops)
+{
+	void *p = ops->setup_area(1);
+
+	ops->fault(p, 0, hpage_pmd_size);
+
+	/*
+	 * VMA should be neither VM_HUGEPAGE nor VM_NOHUGEPAGE.
+	 * The latter is ineligible for collapse by MADV_COLLAPSE
+	 * while the former might cause MADV_COLLAPSE to race with
+	 * khugepaged on low-load system (like a test machine), which
+	 * would cause MADV_COLLAPSE to fail with EAGAIN.
+	 */
+	printf("Allocate huge page...");
+	if (madvise_collapse_retry(p, hpage_pmd_size)) {
+		perror("madvise(MADV_COLLAPSE)");
+		exit(EXIT_FAILURE);
+	}
+	if (!ops->check_huge(p, 1)) {
+		perror("madvise(MADV_COLLAPSE)");
+		exit(EXIT_FAILURE);
+	}
+	if (madvise(p, hpage_pmd_size, MADV_HUGEPAGE)) {
+		perror("madvise(MADV_HUGEPAGE)");
+		exit(EXIT_FAILURE);
+	}
+	success("OK");
+	return p;
+}
+
+static void validate_memory(int *p, unsigned long start, unsigned long end)
+{
+	int i;
+
+	for (i = start / page_size; i < end / page_size; i++) {
+		if (p[i * page_size / sizeof(*p)] != i + 0xdead0000) {
+			printf("Page %d is corrupted: %#x\n",
+					i, p[i * page_size / sizeof(*p)]);
+			exit(EXIT_FAILURE);
+		}
+	}
+}
+
+static void *anon_setup_area(int nr_hpages)
+{
+	return alloc_mapping(nr_hpages);
+}
+
+static void anon_cleanup_area(void *p, unsigned long size)
+{
+	munmap(p, size);
+}
+
+static void anon_fault(void *p, unsigned long start, unsigned long end)
+{
+	fill_memory(p, start, end);
+}
+
+static bool anon_check_huge(void *addr, int nr_hpages)
+{
+	return check_huge_anon(addr, nr_hpages, hpage_pmd_size);
+}
+
+static void *file_setup_area(int nr_hpages)
+{
+	int fd;
+	void *p;
+	unsigned long size;
+
+	unlink(finfo.path);  /* Cleanup from previous failed tests */
+	printf("Creating %s for collapse%s...", finfo.path,
+	       finfo.type == VMA_SHMEM ? " (tmpfs)" : "");
+	fd = open(finfo.path, O_DSYNC | O_CREAT | O_RDWR | O_TRUNC | O_EXCL,
+		  777);
+	if (fd < 0) {
+		perror("open()");
+		exit(EXIT_FAILURE);
+	}
+
+	size = nr_hpages * hpage_pmd_size;
+	p = alloc_mapping(nr_hpages);
+	fill_memory(p, 0, size);
+	write(fd, p, size);
+	close(fd);
+	munmap(p, size);
+	success("OK");
+
+	printf("Opening %s read only for collapse...", finfo.path);
+	finfo.fd = open(finfo.path, O_RDONLY, 777);
+	if (finfo.fd < 0) {
+		perror("open()");
+		exit(EXIT_FAILURE);
+	}
+	p = mmap(BASE_ADDR, size, PROT_READ,
+		 MAP_PRIVATE, finfo.fd, 0);
+	if (p == MAP_FAILED || p != BASE_ADDR) {
+		perror("mmap()");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Drop page cache */
+	write_file("/proc/sys/vm/drop_caches", "3", 2);
+	success("OK");
+	return p;
+}
+
+static void file_cleanup_area(void *p, unsigned long size)
+{
+	munmap(p, size);
+	close(finfo.fd);
+	unlink(finfo.path);
+}
+
+static void file_fault(void *p, unsigned long start, unsigned long end)
+{
+	if (madvise(((char *)p) + start, end - start, MADV_POPULATE_READ)) {
+		perror("madvise(MADV_POPULATE_READ");
+		exit(EXIT_FAILURE);
+	}
+}
+
+static bool file_check_huge(void *addr, int nr_hpages)
+{
+	switch (finfo.type) {
+	case VMA_FILE:
+		return check_huge_file(addr, nr_hpages, hpage_pmd_size);
+	case VMA_SHMEM:
+		return check_huge_shmem(addr, nr_hpages, hpage_pmd_size);
+	default:
+		exit(EXIT_FAILURE);
+		return false;
+	}
+}
+
+static void *shmem_setup_area(int nr_hpages)
+{
+	void *p;
+	unsigned long size = nr_hpages * hpage_pmd_size;
+
+	finfo.fd = memfd_create("khugepaged-selftest-collapse-shmem", 0);
+	if (finfo.fd < 0)  {
+		perror("memfd_create()");
+		exit(EXIT_FAILURE);
+	}
+	if (ftruncate(finfo.fd, size)) {
+		perror("ftruncate()");
+		exit(EXIT_FAILURE);
+	}
+	p = mmap(BASE_ADDR, size, PROT_READ | PROT_WRITE, MAP_SHARED, finfo.fd,
+		 0);
+	if (p != BASE_ADDR) {
+		perror("mmap()");
+		exit(EXIT_FAILURE);
+	}
+	return p;
+}
+
+static void shmem_cleanup_area(void *p, unsigned long size)
+{
+	munmap(p, size);
+	close(finfo.fd);
+}
+
+static bool shmem_check_huge(void *addr, int nr_hpages)
+{
+	return check_huge_shmem(addr, nr_hpages, hpage_pmd_size);
+}
+
+static struct mem_ops __anon_ops = {
+	.setup_area = &anon_setup_area,
+	.cleanup_area = &anon_cleanup_area,
+	.fault = &anon_fault,
+	.check_huge = &anon_check_huge,
+	.name = "anon",
+};
+
+static struct mem_ops __file_ops = {
+	.setup_area = &file_setup_area,
+	.cleanup_area = &file_cleanup_area,
+	.fault = &file_fault,
+	.check_huge = &file_check_huge,
+	.name = "file",
+};
+
+static struct mem_ops __shmem_ops = {
+	.setup_area = &shmem_setup_area,
+	.cleanup_area = &shmem_cleanup_area,
+	.fault = &anon_fault,
+	.check_huge = &shmem_check_huge,
+	.name = "shmem",
+};
+
+static void __madvise_collapse(const char *msg, char *p, int nr_hpages,
+			       struct mem_ops *ops, bool expect)
+{
+	int ret;
+	struct thp_settings settings = *thp_current_settings();
+
+	printf("%s...", msg);
+
+	/*
+	 * Prevent khugepaged interference and tests that MADV_COLLAPSE
+	 * ignores /sys/kernel/mm/transparent_hugepage/enabled
+	 */
+	settings.thp_enabled = THP_NEVER;
+	settings.shmem_enabled = SHMEM_NEVER;
+	thp_push_settings(&settings);
+
+	/* Clear VM_NOHUGEPAGE */
+	madvise(p, nr_hpages * hpage_pmd_size, MADV_HUGEPAGE);
+	ret = madvise_collapse_retry(p, nr_hpages * hpage_pmd_size);
+	if (((bool)ret) == expect)
+		fail("Fail: Bad return value");
+	else if (!ops->check_huge(p, expect ? nr_hpages : 0))
+		fail("Fail: check_huge()");
+	else
+		success("OK");
+
+	thp_pop_settings();
+}
+
+static void madvise_collapse(const char *msg, char *p, int nr_hpages,
+			     struct mem_ops *ops, bool expect)
+{
+	/* Sanity check */
+	if (!ops->check_huge(p, 0)) {
+		printf("Unexpected huge page\n");
+		exit(EXIT_FAILURE);
+	}
+	__madvise_collapse(msg, p, nr_hpages, ops, expect);
+}
+
+#define TICK 500000
+static bool wait_for_scan(const char *msg, char *p, int nr_hpages,
+			  struct mem_ops *ops)
+{
+	int full_scans;
+	int timeout = 6; /* 3 seconds */
+
+	/* Sanity check */
+	if (!ops->check_huge(p, 0)) {
+		printf("Unexpected huge page\n");
+		exit(EXIT_FAILURE);
+	}
+
+	madvise(p, nr_hpages * hpage_pmd_size, MADV_HUGEPAGE);
+
+	/* Wait until the second full_scan completed */
+	full_scans = thp_read_num("khugepaged/full_scans") + 2;
+
+	printf("%s...", msg);
+	while (timeout--) {
+		if (ops->check_huge(p, nr_hpages))
+			break;
+		if (thp_read_num("khugepaged/full_scans") >= full_scans)
+			break;
+		printf(".");
+		usleep(TICK);
+	}
+
+	return timeout == -1;
+}
+
+static void khugepaged_collapse(const char *msg, char *p, int nr_hpages,
+				struct mem_ops *ops, bool expect)
+{
+	if (wait_for_scan(msg, p, nr_hpages, ops)) {
+		if (expect)
+			fail("Timeout");
+		else
+			success("OK");
+		return;
+	}
+
+	/*
+	 * For file and shmem memory, khugepaged only retracts pte entries after
+	 * putting the new hugepage in the page cache. The hugepage must be
+	 * subsequently refaulted to install the pmd mapping for the mm.
+	 */
+	if (ops != &__anon_ops)
+		ops->fault(p, 0, nr_hpages * hpage_pmd_size);
+
+	if (ops->check_huge(p, expect ? nr_hpages : 0))
+		success("OK");
+	else
+		fail("Fail");
+}
+
+static struct collapse_context __khugepaged_context = {
+	.collapse = &khugepaged_collapse,
+	.enforce_pte_scan_limits = true,
+	.name = "khugepaged",
+};
+
+static struct collapse_context __madvise_context = {
+	.collapse = &madvise_collapse,
+	.enforce_pte_scan_limits = false,
+	.name = "madvise",
+};
+
+static bool is_tmpfs(struct mem_ops *ops)
+{
+	return ops == &__file_ops && finfo.type == VMA_SHMEM;
+}
+
+static bool is_anon(struct mem_ops *ops)
+{
+	return ops == &__anon_ops;
+}
+
+static void alloc_at_fault(void)
+{
+	struct thp_settings settings = *thp_current_settings();
+	char *p;
+
+	settings.thp_enabled = THP_ALWAYS;
+	thp_push_settings(&settings);
+
+	p = alloc_mapping(1);
+	*p = 1;
+	printf("Allocate huge page on fault...");
+	if (check_huge_anon(p, 1, hpage_pmd_size))
+		success("OK");
+	else
+		fail("Fail");
+
+	thp_pop_settings();
+
+	madvise(p, page_size, MADV_DONTNEED);
+	printf("Split huge PMD on MADV_DONTNEED...");
+	if (check_huge_anon(p, 0, hpage_pmd_size))
+		success("OK");
+	else
+		fail("Fail");
+	munmap(p, hpage_pmd_size);
+}
+
+static void collapse_full(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+	int nr_hpages = 4;
+	unsigned long size = nr_hpages * hpage_pmd_size;
+
+	p = ops->setup_area(nr_hpages);
+	ops->fault(p, 0, size);
+	c->collapse("Collapse multiple fully populated PTE table", p, nr_hpages,
+		    ops, true);
+	validate_memory(p, 0, size);
+	ops->cleanup_area(p, size);
+}
+
+static void collapse_empty(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+
+	p = ops->setup_area(1);
+	c->collapse("Do not collapse empty PTE table", p, 1, ops, false);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_single_pte_entry(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+
+	p = ops->setup_area(1);
+	ops->fault(p, 0, page_size);
+	c->collapse("Collapse PTE table with single PTE entry present", p,
+		    1, ops, true);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_max_ptes_none(struct collapse_context *c, struct mem_ops *ops)
+{
+	int max_ptes_none = hpage_pmd_nr / 2;
+	struct thp_settings settings = *thp_current_settings();
+	void *p;
+	int fault_nr_pages = is_anon(ops) ? 1 << anon_order : 1;
+
+	settings.khugepaged.max_ptes_none = max_ptes_none;
+	thp_push_settings(&settings);
+
+	p = ops->setup_area(1);
+
+	if (is_tmpfs(ops)) {
+		/* shmem pages always in the page cache */
+		printf("tmpfs...");
+		skip("Skip");
+		goto skip;
+	}
+
+	ops->fault(p, 0, (hpage_pmd_nr - max_ptes_none - fault_nr_pages) * page_size);
+	c->collapse("Maybe collapse with max_ptes_none exceeded", p, 1,
+		    ops, !c->enforce_pte_scan_limits);
+	validate_memory(p, 0, (hpage_pmd_nr - max_ptes_none - fault_nr_pages) * page_size);
+
+	if (c->enforce_pte_scan_limits) {
+		ops->fault(p, 0, (hpage_pmd_nr - max_ptes_none) * page_size);
+		c->collapse("Collapse with max_ptes_none PTEs empty", p, 1, ops,
+			    true);
+		validate_memory(p, 0,
+				(hpage_pmd_nr - max_ptes_none) * page_size);
+	}
+skip:
+	ops->cleanup_area(p, hpage_pmd_size);
+	thp_pop_settings();
+}
+
+static void collapse_swapin_single_pte(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+
+	p = ops->setup_area(1);
+	ops->fault(p, 0, hpage_pmd_size);
+
+	printf("Swapout one page...");
+	if (madvise(p, page_size, MADV_PAGEOUT)) {
+		perror("madvise(MADV_PAGEOUT)");
+		exit(EXIT_FAILURE);
+	}
+	if (check_swap(p, page_size)) {
+		success("OK");
+	} else {
+		fail("Fail");
+		goto out;
+	}
+
+	c->collapse("Collapse with swapping in single PTE entry", p, 1, ops,
+		    true);
+	validate_memory(p, 0, hpage_pmd_size);
+out:
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_max_ptes_swap(struct collapse_context *c, struct mem_ops *ops)
+{
+	int max_ptes_swap = thp_read_num("khugepaged/max_ptes_swap");
+	void *p;
+
+	p = ops->setup_area(1);
+	ops->fault(p, 0, hpage_pmd_size);
+
+	printf("Swapout %d of %d pages...", max_ptes_swap + 1, hpage_pmd_nr);
+	if (madvise(p, (max_ptes_swap + 1) * page_size, MADV_PAGEOUT)) {
+		perror("madvise(MADV_PAGEOUT)");
+		exit(EXIT_FAILURE);
+	}
+	if (check_swap(p, (max_ptes_swap + 1) * page_size)) {
+		success("OK");
+	} else {
+		fail("Fail");
+		goto out;
+	}
+
+	c->collapse("Maybe collapse with max_ptes_swap exceeded", p, 1, ops,
+		    !c->enforce_pte_scan_limits);
+	validate_memory(p, 0, hpage_pmd_size);
+
+	if (c->enforce_pte_scan_limits) {
+		ops->fault(p, 0, hpage_pmd_size);
+		printf("Swapout %d of %d pages...", max_ptes_swap,
+		       hpage_pmd_nr);
+		if (madvise(p, max_ptes_swap * page_size, MADV_PAGEOUT)) {
+			perror("madvise(MADV_PAGEOUT)");
+			exit(EXIT_FAILURE);
+		}
+		if (check_swap(p, max_ptes_swap * page_size)) {
+			success("OK");
+		} else {
+			fail("Fail");
+			goto out;
+		}
+
+		c->collapse("Collapse with max_ptes_swap pages swapped out", p,
+			    1, ops, true);
+		validate_memory(p, 0, hpage_pmd_size);
+	}
+out:
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_single_pte_entry_compound(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+
+	p = alloc_hpage(ops);
+
+	if (is_tmpfs(ops)) {
+		/* MADV_DONTNEED won't evict tmpfs pages */
+		printf("tmpfs...");
+		skip("Skip");
+		goto skip;
+	}
+
+	madvise(p, hpage_pmd_size, MADV_NOHUGEPAGE);
+	printf("Split huge page leaving single PTE mapping compound page...");
+	madvise(p + page_size, hpage_pmd_size - page_size, MADV_DONTNEED);
+	if (ops->check_huge(p, 0))
+		success("OK");
+	else
+		fail("Fail");
+
+	c->collapse("Collapse PTE table with single PTE mapping compound page",
+		    p, 1, ops, true);
+	validate_memory(p, 0, page_size);
+skip:
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_full_of_compound(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+
+	p = alloc_hpage(ops);
+	printf("Split huge page leaving single PTE page table full of compound pages...");
+	madvise(p, page_size, MADV_NOHUGEPAGE);
+	madvise(p, hpage_pmd_size, MADV_NOHUGEPAGE);
+	if (ops->check_huge(p, 0))
+		success("OK");
+	else
+		fail("Fail");
+
+	c->collapse("Collapse PTE table full of compound pages", p, 1, ops,
+		    true);
+	validate_memory(p, 0, hpage_pmd_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_compound_extreme(struct collapse_context *c, struct mem_ops *ops)
+{
+	void *p;
+	int i;
+
+	p = ops->setup_area(1);
+	for (i = 0; i < hpage_pmd_nr; i++) {
+		printf("\rConstruct PTE page table full of different PTE-mapped compound pages %3d/%d...",
+				i + 1, hpage_pmd_nr);
+
+		madvise(BASE_ADDR, hpage_pmd_size, MADV_HUGEPAGE);
+		ops->fault(BASE_ADDR, 0, hpage_pmd_size);
+		if (!ops->check_huge(BASE_ADDR, 1)) {
+			printf("Failed to allocate huge page\n");
+			exit(EXIT_FAILURE);
+		}
+		madvise(BASE_ADDR, hpage_pmd_size, MADV_NOHUGEPAGE);
+
+		p = mremap(BASE_ADDR - i * page_size,
+				i * page_size + hpage_pmd_size,
+				(i + 1) * page_size,
+				MREMAP_MAYMOVE | MREMAP_FIXED,
+				BASE_ADDR + 2 * hpage_pmd_size);
+		if (p == MAP_FAILED) {
+			perror("mremap+unmap");
+			exit(EXIT_FAILURE);
+		}
+
+		p = mremap(BASE_ADDR + 2 * hpage_pmd_size,
+				(i + 1) * page_size,
+				(i + 1) * page_size + hpage_pmd_size,
+				MREMAP_MAYMOVE | MREMAP_FIXED,
+				BASE_ADDR - (i + 1) * page_size);
+		if (p == MAP_FAILED) {
+			perror("mremap+alloc");
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	ops->cleanup_area(BASE_ADDR, hpage_pmd_size);
+	ops->fault(p, 0, hpage_pmd_size);
+	if (!ops->check_huge(p, 1))
+		success("OK");
+	else
+		fail("Fail");
+
+	c->collapse("Collapse PTE table full of different compound pages", p, 1,
+		    ops, true);
+
+	validate_memory(p, 0, hpage_pmd_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_fork(struct collapse_context *c, struct mem_ops *ops)
+{
+	int wstatus;
+	void *p;
+
+	p = ops->setup_area(1);
+
+	printf("Allocate small page...");
+	ops->fault(p, 0, page_size);
+	if (ops->check_huge(p, 0))
+		success("OK");
+	else
+		fail("Fail");
+
+	printf("Share small page over fork()...");
+	if (!fork()) {
+		/* Do not touch settings on child exit */
+		skip_settings_restore = true;
+		exit_status = 0;
+
+		if (ops->check_huge(p, 0))
+			success("OK");
+		else
+			fail("Fail");
+
+		ops->fault(p, page_size, 2 * page_size);
+		c->collapse("Collapse PTE table with single page shared with parent process",
+			    p, 1, ops, true);
+
+		validate_memory(p, 0, page_size);
+		ops->cleanup_area(p, hpage_pmd_size);
+		exit(exit_status);
+	}
+
+	wait(&wstatus);
+	exit_status += WEXITSTATUS(wstatus);
+
+	printf("Check if parent still has small page...");
+	if (ops->check_huge(p, 0))
+		success("OK");
+	else
+		fail("Fail");
+	validate_memory(p, 0, page_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_fork_compound(struct collapse_context *c, struct mem_ops *ops)
+{
+	int wstatus;
+	void *p;
+
+	p = alloc_hpage(ops);
+	printf("Share huge page over fork()...");
+	if (!fork()) {
+		/* Do not touch settings on child exit */
+		skip_settings_restore = true;
+		exit_status = 0;
+
+		if (ops->check_huge(p, 1))
+			success("OK");
+		else
+			fail("Fail");
+
+		printf("Split huge page PMD in child process...");
+		madvise(p, page_size, MADV_NOHUGEPAGE);
+		madvise(p, hpage_pmd_size, MADV_NOHUGEPAGE);
+		if (ops->check_huge(p, 0))
+			success("OK");
+		else
+			fail("Fail");
+		ops->fault(p, 0, page_size);
+
+		thp_write_num("khugepaged/max_ptes_shared", hpage_pmd_nr - 1);
+		c->collapse("Collapse PTE table full of compound pages in child",
+			    p, 1, ops, true);
+		thp_write_num("khugepaged/max_ptes_shared",
+			  thp_current_settings()->khugepaged.max_ptes_shared);
+
+		validate_memory(p, 0, hpage_pmd_size);
+		ops->cleanup_area(p, hpage_pmd_size);
+		exit(exit_status);
+	}
+
+	wait(&wstatus);
+	exit_status += WEXITSTATUS(wstatus);
+
+	printf("Check if parent still has huge page...");
+	if (ops->check_huge(p, 1))
+		success("OK");
+	else
+		fail("Fail");
+	validate_memory(p, 0, hpage_pmd_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void collapse_max_ptes_shared(struct collapse_context *c, struct mem_ops *ops)
+{
+	int max_ptes_shared = thp_read_num("khugepaged/max_ptes_shared");
+	int wstatus;
+	void *p;
+
+	p = alloc_hpage(ops);
+	printf("Share huge page over fork()...");
+	if (!fork()) {
+		/* Do not touch settings on child exit */
+		skip_settings_restore = true;
+		exit_status = 0;
+
+		if (ops->check_huge(p, 1))
+			success("OK");
+		else
+			fail("Fail");
+
+		printf("Trigger CoW on page %d of %d...",
+				hpage_pmd_nr - max_ptes_shared - 1, hpage_pmd_nr);
+		ops->fault(p, 0, (hpage_pmd_nr - max_ptes_shared - 1) * page_size);
+		if (ops->check_huge(p, 0))
+			success("OK");
+		else
+			fail("Fail");
+
+		c->collapse("Maybe collapse with max_ptes_shared exceeded", p,
+			    1, ops, !c->enforce_pte_scan_limits);
+
+		if (c->enforce_pte_scan_limits) {
+			printf("Trigger CoW on page %d of %d...",
+			       hpage_pmd_nr - max_ptes_shared, hpage_pmd_nr);
+			ops->fault(p, 0, (hpage_pmd_nr - max_ptes_shared) *
+				    page_size);
+			if (ops->check_huge(p, 0))
+				success("OK");
+			else
+				fail("Fail");
+
+			c->collapse("Collapse with max_ptes_shared PTEs shared",
+				    p, 1, ops, true);
+		}
+
+		validate_memory(p, 0, hpage_pmd_size);
+		ops->cleanup_area(p, hpage_pmd_size);
+		exit(exit_status);
+	}
+
+	wait(&wstatus);
+	exit_status += WEXITSTATUS(wstatus);
+
+	printf("Check if parent still has huge page...");
+	if (ops->check_huge(p, 1))
+		success("OK");
+	else
+		fail("Fail");
+	validate_memory(p, 0, hpage_pmd_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+static void madvise_collapse_existing_thps(struct collapse_context *c,
+					   struct mem_ops *ops)
+{
+	void *p;
+
+	p = ops->setup_area(1);
+	ops->fault(p, 0, hpage_pmd_size);
+	c->collapse("Collapse fully populated PTE table...", p, 1, ops, true);
+	validate_memory(p, 0, hpage_pmd_size);
+
+	/* c->collapse() will find a hugepage and complain - call directly. */
+	__madvise_collapse("Re-collapse PMD-mapped hugepage", p, 1, ops, true);
+	validate_memory(p, 0, hpage_pmd_size);
+	ops->cleanup_area(p, hpage_pmd_size);
+}
+
+/*
+ * Test race with khugepaged where page tables have been retracted and
+ * pmd cleared.
+ */
+static void madvise_retracted_page_tables(struct collapse_context *c,
+					  struct mem_ops *ops)
+{
+	void *p;
+	int nr_hpages = 1;
+	unsigned long size = nr_hpages * hpage_pmd_size;
+
+	p = ops->setup_area(nr_hpages);
+	ops->fault(p, 0, size);
+
+	/* Let khugepaged collapse and leave pmd cleared */
+	if (wait_for_scan("Collapse and leave PMD cleared", p, nr_hpages,
+			  ops)) {
+		fail("Timeout");
+		return;
+	}
+	success("OK");
+	c->collapse("Install huge PMD from page cache", p, nr_hpages, ops,
+		    true);
+	validate_memory(p, 0, size);
+	ops->cleanup_area(p, size);
+}
+
+static void usage(void)
+{
+	fprintf(stderr, "\nUsage: ./khugepaged [OPTIONS] <test type> [dir]\n\n");
+	fprintf(stderr, "\t<test type>\t: <context>:<mem_type>\n");
+	fprintf(stderr, "\t<context>\t: [all|khugepaged|madvise]\n");
+	fprintf(stderr, "\t<mem_type>\t: [all|anon|file|shmem]\n");
+	fprintf(stderr, "\n\t\"file,all\" mem_type requires [dir] argument\n");
+	fprintf(stderr, "\n\t\"file,all\" mem_type requires kernel built with\n");
+	fprintf(stderr,	"\tCONFIG_READ_ONLY_THP_FOR_FS=y\n");
+	fprintf(stderr, "\n\tif [dir] is a (sub)directory of a tmpfs mount, tmpfs must be\n");
+	fprintf(stderr,	"\tmounted with huge=advise option for khugepaged tests to work\n");
+	fprintf(stderr,	"\n\tSupported Options:\n");
+	fprintf(stderr,	"\t\t-h: This help message.\n");
+	fprintf(stderr,	"\t\t-s: mTHP size, expressed as page order.\n");
+	fprintf(stderr,	"\t\t    Defaults to 0. Use this size for anon or shmem allocations.\n");
+	exit(1);
+}
+
+static void parse_test_type(int argc, char **argv)
+{
+	int opt;
+	char *buf;
+	const char *token;
+
+	while ((opt = getopt(argc, argv, "s:h")) != -1) {
+		switch (opt) {
+		case 's':
+			anon_order = atoi(optarg);
+			break;
+		case 'h':
+		default:
+			usage();
+		}
+	}
+
+	argv += optind;
+	argc -= optind;
+
+	if (argc == 0) {
+		/* Backwards compatibility */
+		khugepaged_context =  &__khugepaged_context;
+		madvise_context =  &__madvise_context;
+		anon_ops = &__anon_ops;
+		return;
+	}
+
+	buf = strdup(argv[0]);
+	token = strsep(&buf, ":");
+
+	if (!strcmp(token, "all")) {
+		khugepaged_context =  &__khugepaged_context;
+		madvise_context =  &__madvise_context;
+	} else if (!strcmp(token, "khugepaged")) {
+		khugepaged_context =  &__khugepaged_context;
+	} else if (!strcmp(token, "madvise")) {
+		madvise_context =  &__madvise_context;
+	} else {
+		usage();
+	}
+
+	if (!buf)
+		usage();
+
+	if (!strcmp(buf, "all")) {
+		file_ops =  &__file_ops;
+		anon_ops = &__anon_ops;
+		shmem_ops = &__shmem_ops;
+	} else if (!strcmp(buf, "anon")) {
+		anon_ops = &__anon_ops;
+	} else if (!strcmp(buf, "file")) {
+		file_ops =  &__file_ops;
+	} else if (!strcmp(buf, "shmem")) {
+		shmem_ops = &__shmem_ops;
+	} else {
+		usage();
+	}
+
+	if (!file_ops)
+		return;
+
+	if (argc != 2)
+		usage();
+
+	get_finfo(argv[1]);
+}
+
+int main(int argc, char **argv)
+{
+	int hpage_pmd_order;
+	struct thp_settings default_settings = {
+		.thp_enabled = THP_MADVISE,
+		.thp_defrag = THP_DEFRAG_ALWAYS,
+		.shmem_enabled = SHMEM_ADVISE,
+		.use_zero_page = 0,
+		.khugepaged = {
+			.defrag = 1,
+			.alloc_sleep_millisecs = 10,
+			.scan_sleep_millisecs = 10,
+		},
+		/*
+		 * When testing file-backed memory, the collapse path
+		 * looks at how many pages are found in the page cache, not
+		 * what pages are mapped. Disable read ahead optimization so
+		 * pages don't find their way into the page cache unless
+		 * we mem_ops->fault() them in.
+		 */
+		.read_ahead_kb = 0,
+	};
+
+	if (!thp_is_enabled()) {
+		printf("Transparent Hugepages not available\n");
+		return KSFT_SKIP;
+	}
+
+	parse_test_type(argc, argv);
+
+	setbuf(stdout, NULL);
+
+	page_size = getpagesize();
+	hpage_pmd_size = read_pmd_pagesize();
+	if (!hpage_pmd_size) {
+		printf("Reading PMD pagesize failed");
+		exit(EXIT_FAILURE);
+	}
+	hpage_pmd_nr = hpage_pmd_size / page_size;
+	hpage_pmd_order = __builtin_ctz(hpage_pmd_nr);
+
+	default_settings.khugepaged.max_ptes_none = hpage_pmd_nr - 1;
+	default_settings.khugepaged.max_ptes_swap = hpage_pmd_nr / 8;
+	default_settings.khugepaged.max_ptes_shared = hpage_pmd_nr / 2;
+	default_settings.khugepaged.pages_to_scan = hpage_pmd_nr * 8;
+	default_settings.hugepages[hpage_pmd_order].enabled = THP_INHERIT;
+	default_settings.hugepages[anon_order].enabled = THP_ALWAYS;
+	default_settings.shmem_hugepages[hpage_pmd_order].enabled = SHMEM_INHERIT;
+	default_settings.shmem_hugepages[anon_order].enabled = SHMEM_ALWAYS;
+
+	save_settings();
+	thp_push_settings(&default_settings);
+
+	alloc_at_fault();
+
+#define TEST(t, c, o) do { \
+	if (c && o) { \
+		printf("\nRun test: " #t " (%s:%s)\n", c->name, o->name); \
+		t(c, o); \
+	} \
+	} while (0)
+
+	TEST(collapse_full, khugepaged_context, anon_ops);
+	TEST(collapse_full, khugepaged_context, file_ops);
+	TEST(collapse_full, khugepaged_context, shmem_ops);
+	TEST(collapse_full, madvise_context, anon_ops);
+	TEST(collapse_full, madvise_context, file_ops);
+	TEST(collapse_full, madvise_context, shmem_ops);
+
+	TEST(collapse_empty, khugepaged_context, anon_ops);
+	TEST(collapse_empty, madvise_context, anon_ops);
+
+	TEST(collapse_single_pte_entry, khugepaged_context, anon_ops);
+	TEST(collapse_single_pte_entry, khugepaged_context, file_ops);
+	TEST(collapse_single_pte_entry, khugepaged_context, shmem_ops);
+	TEST(collapse_single_pte_entry, madvise_context, anon_ops);
+	TEST(collapse_single_pte_entry, madvise_context, file_ops);
+	TEST(collapse_single_pte_entry, madvise_context, shmem_ops);
+
+	TEST(collapse_max_ptes_none, khugepaged_context, anon_ops);
+	TEST(collapse_max_ptes_none, khugepaged_context, file_ops);
+	TEST(collapse_max_ptes_none, madvise_context, anon_ops);
+	TEST(collapse_max_ptes_none, madvise_context, file_ops);
+
+	TEST(collapse_single_pte_entry_compound, khugepaged_context, anon_ops);
+	TEST(collapse_single_pte_entry_compound, khugepaged_context, file_ops);
+	TEST(collapse_single_pte_entry_compound, madvise_context, anon_ops);
+	TEST(collapse_single_pte_entry_compound, madvise_context, file_ops);
+
+	TEST(collapse_full_of_compound, khugepaged_context, anon_ops);
+	TEST(collapse_full_of_compound, khugepaged_context, file_ops);
+	TEST(collapse_full_of_compound, khugepaged_context, shmem_ops);
+	TEST(collapse_full_of_compound, madvise_context, anon_ops);
+	TEST(collapse_full_of_compound, madvise_context, file_ops);
+	TEST(collapse_full_of_compound, madvise_context, shmem_ops);
+
+	TEST(collapse_compound_extreme, khugepaged_context, anon_ops);
+	TEST(collapse_compound_extreme, madvise_context, anon_ops);
+
+	TEST(collapse_swapin_single_pte, khugepaged_context, anon_ops);
+	TEST(collapse_swapin_single_pte, madvise_context, anon_ops);
+
+	TEST(collapse_max_ptes_swap, khugepaged_context, anon_ops);
+	TEST(collapse_max_ptes_swap, madvise_context, anon_ops);
+
+	TEST(collapse_fork, khugepaged_context, anon_ops);
+	TEST(collapse_fork, madvise_context, anon_ops);
+
+	TEST(collapse_fork_compound, khugepaged_context, anon_ops);
+	TEST(collapse_fork_compound, madvise_context, anon_ops);
+
+	TEST(collapse_max_ptes_shared, khugepaged_context, anon_ops);
+	TEST(collapse_max_ptes_shared, madvise_context, anon_ops);
+
+	TEST(madvise_collapse_existing_thps, madvise_context, anon_ops);
+	TEST(madvise_collapse_existing_thps, madvise_context, file_ops);
+	TEST(madvise_collapse_existing_thps, madvise_context, shmem_ops);
+
+	TEST(madvise_retracted_page_tables, madvise_context, file_ops);
+	TEST(madvise_retracted_page_tables, madvise_context, shmem_ops);
+
+	restore_settings(0);
+}
diff --git a/tools/testing/selftests/mm/ksm_functional_tests.c b/tools/testing/selftests/mm/ksm_functional_tests.c
new file mode 100644
index 000000000000..8d874c4754f3
--- /dev/null
+++ b/tools/testing/selftests/mm/ksm_functional_tests.c
@@ -0,0 +1,759 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * KSM functional tests
+ *
+ * Copyright 2022, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <linux/userfaultfd.h>
+
+#include "kselftest.h"
+#include "vm_util.h"
+
+#define KiB 1024u
+#define MiB (1024 * KiB)
+#define FORK_EXEC_CHILD_PRG_NAME "ksm_fork_exec_child"
+
+#define MAP_MERGE_FAIL ((void *)-1)
+#define MAP_MERGE_SKIP ((void *)-2)
+
+enum ksm_merge_mode {
+	KSM_MERGE_PRCTL,
+	KSM_MERGE_MADVISE,
+	KSM_MERGE_NONE, /* PRCTL already set */
+};
+
+static int mem_fd;
+static int pages_to_scan_fd;
+static int sleep_millisecs_fd;
+static int pagemap_fd;
+static size_t pagesize;
+
+static void init_global_file_handles(void);
+
+static bool range_maps_duplicates(char *addr, unsigned long size)
+{
+	unsigned long offs_a, offs_b, pfn_a, pfn_b;
+
+	/*
+	 * There is no easy way to check if there are KSM pages mapped into
+	 * this range. We only check that the range does not map the same PFN
+	 * twice by comparing each pair of mapped pages.
+	 */
+	for (offs_a = 0; offs_a < size; offs_a += pagesize) {
+		pfn_a = pagemap_get_pfn(pagemap_fd, addr + offs_a);
+		/* Page not present or PFN not exposed by the kernel. */
+		if (pfn_a == -1ul || !pfn_a)
+			continue;
+
+		for (offs_b = offs_a + pagesize; offs_b < size;
+		     offs_b += pagesize) {
+			pfn_b = pagemap_get_pfn(pagemap_fd, addr + offs_b);
+			if (pfn_b == -1ul || !pfn_b)
+				continue;
+			if (pfn_a == pfn_b)
+				return true;
+		}
+	}
+	return false;
+}
+
+static char *__mmap_and_merge_range(char val, unsigned long size, int prot,
+				  enum ksm_merge_mode mode)
+{
+	char *map;
+	char *err_map = MAP_MERGE_FAIL;
+	int ret;
+
+	/* Stabilize accounting by disabling KSM completely. */
+	if (ksm_stop() < 0) {
+		ksft_print_msg("Disabling (unmerging) KSM failed\n");
+		return err_map;
+	}
+
+	if (ksm_get_self_merging_pages() > 0) {
+		ksft_print_msg("Still pages merged\n");
+		return err_map;
+	}
+
+	map = mmap(NULL, size, PROT_READ|PROT_WRITE,
+		   MAP_PRIVATE|MAP_ANON, -1, 0);
+	if (map == MAP_FAILED) {
+		ksft_print_msg("mmap() failed\n");
+		return err_map;
+	}
+
+	/* Don't use THP. Ignore if THP are not around on a kernel. */
+	if (madvise(map, size, MADV_NOHUGEPAGE) && errno != EINVAL) {
+		ksft_print_msg("MADV_NOHUGEPAGE failed\n");
+		goto unmap;
+	}
+
+	/* Make sure each page contains the same values to merge them. */
+	memset(map, val, size);
+
+	if (mprotect(map, size, prot)) {
+		ksft_print_msg("mprotect() failed\n");
+		err_map = MAP_MERGE_SKIP;
+		goto unmap;
+	}
+
+	switch (mode) {
+	case KSM_MERGE_PRCTL:
+		ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+		if (ret < 0 && errno == EINVAL) {
+			ksft_print_msg("PR_SET_MEMORY_MERGE not supported\n");
+			err_map = MAP_MERGE_SKIP;
+			goto unmap;
+		} else if (ret) {
+			ksft_print_msg("PR_SET_MEMORY_MERGE=1 failed\n");
+			goto unmap;
+		}
+		break;
+	case KSM_MERGE_MADVISE:
+		if (madvise(map, size, MADV_MERGEABLE)) {
+			ksft_print_msg("MADV_MERGEABLE failed\n");
+			goto unmap;
+		}
+		break;
+	case KSM_MERGE_NONE:
+		break;
+	}
+
+	/* Run KSM to trigger merging and wait. */
+	if (ksm_start() < 0) {
+		ksft_print_msg("Running KSM failed\n");
+		goto unmap;
+	}
+
+	/*
+	 * Check if anything was merged at all. Ignore the zero page that is
+	 * accounted differently (depending on kernel support).
+	 */
+	if (val && !ksm_get_self_merging_pages()) {
+		ksft_print_msg("No pages got merged\n");
+		goto unmap;
+	}
+
+	return map;
+unmap:
+	munmap(map, size);
+	return err_map;
+}
+
+static char *mmap_and_merge_range(char val, unsigned long size, int prot,
+				  enum ksm_merge_mode mode)
+{
+	char *map;
+	char *ret = MAP_FAILED;
+
+	map = __mmap_and_merge_range(val, size, prot, mode);
+	if (map == MAP_MERGE_FAIL)
+		ksft_test_result_fail("Merging memory failed");
+	else if (map == MAP_MERGE_SKIP)
+		ksft_test_result_skip("Merging memory skipped");
+	else
+		ret = map;
+
+	return ret;
+}
+
+static void test_unmerge(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		return;
+
+	if (madvise(map, size, MADV_UNMERGEABLE)) {
+		ksft_test_result_fail("MADV_UNMERGEABLE failed\n");
+		goto unmap;
+	}
+
+	ksft_test_result(!range_maps_duplicates(map, size),
+			 "Pages were unmerged\n");
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+static void test_unmerge_zero_pages(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+	unsigned int offs;
+	unsigned long pages_expected;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	if (ksm_get_self_zero_pages() < 0) {
+		ksft_test_result_skip("accessing \"/proc/self/ksm_stat\" failed\n");
+		return;
+	}
+
+	if (ksm_use_zero_pages() < 0) {
+		ksft_test_result_skip("write \"/sys/kernel/mm/ksm/use_zero_pages\" failed\n");
+		return;
+	}
+
+	/* Let KSM deduplicate zero pages. */
+	map = mmap_and_merge_range(0x00, size, PROT_READ | PROT_WRITE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		return;
+
+	/* Check if ksm_zero_pages is updated correctly after KSM merging */
+	pages_expected = size / pagesize;
+	if (pages_expected != ksm_get_self_zero_pages()) {
+		ksft_test_result_fail("'ksm_zero_pages' updated after merging\n");
+		goto unmap;
+	}
+
+	/* Try to unmerge half of the region */
+	if (madvise(map, size / 2, MADV_UNMERGEABLE)) {
+		ksft_test_result_fail("MADV_UNMERGEABLE failed\n");
+		goto unmap;
+	}
+
+	/* Check if ksm_zero_pages is updated correctly after unmerging */
+	pages_expected /= 2;
+	if (pages_expected != ksm_get_self_zero_pages()) {
+		ksft_test_result_fail("'ksm_zero_pages' updated after unmerging\n");
+		goto unmap;
+	}
+
+	/* Trigger unmerging of the other half by writing to the pages. */
+	for (offs = size / 2; offs < size; offs += pagesize)
+		*((unsigned int *)&map[offs]) = offs;
+
+	/* Now we should have no zeropages remaining. */
+	if (ksm_get_self_zero_pages()) {
+		ksft_test_result_fail("'ksm_zero_pages' updated after write fault\n");
+		goto unmap;
+	}
+
+	/* Check if ksm zero pages are really unmerged */
+	ksft_test_result(!range_maps_duplicates(map, size),
+			"KSM zero pages were unmerged\n");
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+static void test_unmerge_discarded(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		return;
+
+	/* Discard half of all mapped pages so we have pte_none() entries. */
+	if (madvise(map, size / 2, MADV_DONTNEED)) {
+		ksft_test_result_fail("MADV_DONTNEED failed\n");
+		goto unmap;
+	}
+
+	if (madvise(map, size, MADV_UNMERGEABLE)) {
+		ksft_test_result_fail("MADV_UNMERGEABLE failed\n");
+		goto unmap;
+	}
+
+	ksft_test_result(!range_maps_duplicates(map, size),
+			 "Pages were unmerged\n");
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+#ifdef __NR_userfaultfd
+static void test_unmerge_uffd_wp(void)
+{
+	struct uffdio_writeprotect uffd_writeprotect;
+	const unsigned int size = 2 * MiB;
+	struct uffdio_api uffdio_api;
+	char *map;
+	int uffd;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		return;
+
+	/* See if UFFD is around. */
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	if (uffd < 0) {
+		ksft_test_result_skip("__NR_userfaultfd failed\n");
+		goto unmap;
+	}
+
+	/* See if UFFD-WP is around. */
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) < 0) {
+		if (errno == EINVAL)
+			ksft_test_result_skip("The API version requested is not supported\n");
+		else
+			ksft_test_result_fail("UFFDIO_API failed: %s\n", strerror(errno));
+
+		goto close_uffd;
+	}
+	if (!(uffdio_api.features & UFFD_FEATURE_PAGEFAULT_FLAG_WP)) {
+		ksft_test_result_skip("UFFD_FEATURE_PAGEFAULT_FLAG_WP not available\n");
+		goto close_uffd;
+	}
+
+	/*
+	 * UFFDIO_API must only be called once to enable features.
+	 * So we close the old userfaultfd and create a new one to
+	 * actually enable UFFD_FEATURE_PAGEFAULT_FLAG_WP.
+	 */
+	close(uffd);
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	if (uffd < 0) {
+		ksft_test_result_fail("__NR_userfaultfd failed\n");
+		goto unmap;
+	}
+
+	/* Now, enable it ("two-step handshake") */
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = UFFD_FEATURE_PAGEFAULT_FLAG_WP;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) < 0) {
+		ksft_test_result_fail("UFFDIO_API failed: %s\n", strerror(errno));
+		goto close_uffd;
+	}
+
+	/* Register UFFD-WP, no need for an actual handler. */
+	if (uffd_register(uffd, map, size, false, true, false)) {
+		ksft_test_result_fail("UFFDIO_REGISTER_MODE_WP failed\n");
+		goto close_uffd;
+	}
+
+	/* Write-protect the range using UFFD-WP. */
+	uffd_writeprotect.range.start = (unsigned long) map;
+	uffd_writeprotect.range.len = size;
+	uffd_writeprotect.mode = UFFDIO_WRITEPROTECT_MODE_WP;
+	if (ioctl(uffd, UFFDIO_WRITEPROTECT, &uffd_writeprotect)) {
+		ksft_test_result_fail("UFFDIO_WRITEPROTECT failed\n");
+		goto close_uffd;
+	}
+
+	if (madvise(map, size, MADV_UNMERGEABLE)) {
+		ksft_test_result_fail("MADV_UNMERGEABLE failed\n");
+		goto close_uffd;
+	}
+
+	ksft_test_result(!range_maps_duplicates(map, size),
+			 "Pages were unmerged\n");
+close_uffd:
+	close(uffd);
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+#endif
+
+/* Verify that KSM can be enabled / queried with prctl. */
+static void test_prctl(void)
+{
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+	if (ret < 0 && errno == EINVAL) {
+		ksft_test_result_skip("PR_SET_MEMORY_MERGE not supported\n");
+		return;
+	} else if (ret) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=1 failed\n");
+		return;
+	}
+
+	ret = prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0);
+	if (ret < 0) {
+		ksft_test_result_fail("PR_GET_MEMORY_MERGE failed\n");
+		return;
+	} else if (ret != 1) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=1 not effective\n");
+		return;
+	}
+
+	ret = prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0);
+	if (ret) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=0 failed\n");
+		return;
+	}
+
+	ret = prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0);
+	if (ret < 0) {
+		ksft_test_result_fail("PR_GET_MEMORY_MERGE failed\n");
+		return;
+	} else if (ret != 0) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=0 not effective\n");
+		return;
+	}
+
+	ksft_test_result_pass("Setting/clearing PR_SET_MEMORY_MERGE works\n");
+}
+
+static int test_child_ksm(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+
+	/* Test if KSM is enabled for the process. */
+	if (prctl(PR_GET_MEMORY_MERGE, 0, 0, 0, 0) != 1)
+		return 1;
+
+	/* Test if merge could really happen. */
+	map = __mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_NONE);
+	if (map == MAP_MERGE_FAIL)
+		return 2;
+	else if (map == MAP_MERGE_SKIP)
+		return 3;
+
+	ksm_stop();
+	munmap(map, size);
+	return 0;
+}
+
+static void test_child_ksm_err(int status)
+{
+	if (status == 1)
+		ksft_test_result_fail("unexpected PR_GET_MEMORY_MERGE result in child\n");
+	else if (status == 2)
+		ksft_test_result_fail("Merge in child failed\n");
+	else if (status == 3)
+		ksft_test_result_skip("Merge in child skipped\n");
+	else if (status == 4)
+		ksft_test_result_fail("Binary not found\n");
+}
+
+/* Verify that prctl ksm flag is inherited. */
+static void test_prctl_fork(void)
+{
+	int ret, status;
+	pid_t child_pid;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+	if (ret < 0 && errno == EINVAL) {
+		ksft_test_result_skip("PR_SET_MEMORY_MERGE not supported\n");
+		return;
+	} else if (ret) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=1 failed\n");
+		return;
+	}
+
+	child_pid = fork();
+	if (!child_pid) {
+		init_global_file_handles();
+		exit(test_child_ksm());
+	} else if (child_pid < 0) {
+		ksft_test_result_fail("fork() failed\n");
+		return;
+	}
+
+	if (waitpid(child_pid, &status, 0) < 0) {
+		ksft_test_result_fail("waitpid() failed\n");
+		return;
+	}
+
+	status = WEXITSTATUS(status);
+	if (status) {
+		test_child_ksm_err(status);
+		return;
+	}
+
+	if (prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0)) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=0 failed\n");
+		return;
+	}
+
+	ksft_test_result_pass("PR_SET_MEMORY_MERGE value is inherited\n");
+}
+
+static int start_ksmd_and_set_frequency(char *pages_to_scan, char *sleep_ms)
+{
+	int ksm_fd;
+
+	ksm_fd = open("/sys/kernel/mm/ksm/run", O_RDWR);
+	if (ksm_fd < 0)
+		return -errno;
+
+	if (write(ksm_fd, "1", 1) != 1)
+		return -errno;
+
+	if (write(pages_to_scan_fd, pages_to_scan, strlen(pages_to_scan)) <= 0)
+		return -errno;
+
+	if (write(sleep_millisecs_fd, sleep_ms, strlen(sleep_ms)) <= 0)
+		return -errno;
+
+	return 0;
+}
+
+static int stop_ksmd_and_restore_frequency(void)
+{
+	int ksm_fd;
+
+	ksm_fd = open("/sys/kernel/mm/ksm/run", O_RDWR);
+	if (ksm_fd < 0)
+		return -errno;
+
+	if (write(ksm_fd, "2", 1) != 1)
+		return -errno;
+
+	if (write(pages_to_scan_fd, "100", 3) <= 0)
+		return -errno;
+
+	if (write(sleep_millisecs_fd, "20", 2) <= 0)
+		return -errno;
+
+	return 0;
+}
+
+static void test_prctl_fork_exec(void)
+{
+	int ret, status;
+	pid_t child_pid;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	if (start_ksmd_and_set_frequency("2000", "0"))
+		ksft_test_result_fail("set ksmd's scanning frequency failed\n");
+
+	ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+	if (ret < 0 && errno == EINVAL) {
+		ksft_test_result_skip("PR_SET_MEMORY_MERGE not supported\n");
+		return;
+	} else if (ret) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=1 failed\n");
+		return;
+	}
+
+	child_pid = fork();
+	if (child_pid == -1) {
+		ksft_test_result_skip("fork() failed\n");
+		return;
+	} else if (child_pid == 0) {
+		char *prg_name = "./ksm_functional_tests";
+		char *argv_for_program[] = { prg_name, FORK_EXEC_CHILD_PRG_NAME, NULL };
+
+		execv(prg_name, argv_for_program);
+		exit(4);
+	}
+
+	if (waitpid(child_pid, &status, 0) > 0) {
+		if (WIFEXITED(status)) {
+			status = WEXITSTATUS(status);
+			if (status) {
+				test_child_ksm_err(status);
+				return;
+			}
+		} else {
+			ksft_test_result_fail("program didn't terminate normally\n");
+			return;
+		}
+	} else {
+		ksft_test_result_fail("waitpid() failed\n");
+		return;
+	}
+
+	if (prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0)) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=0 failed\n");
+		return;
+	}
+
+	if (stop_ksmd_and_restore_frequency()) {
+		ksft_test_result_fail("restore ksmd frequency failed\n");
+		return;
+	}
+
+	ksft_test_result_pass("PR_SET_MEMORY_MERGE value is inherited\n");
+}
+
+static void test_prctl_unmerge(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_PRCTL);
+	if (map == MAP_FAILED)
+		return;
+
+	if (prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0)) {
+		ksft_test_result_fail("PR_SET_MEMORY_MERGE=0 failed\n");
+		goto unmap;
+	}
+
+	ksft_test_result(!range_maps_duplicates(map, size),
+			 "Pages were unmerged\n");
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+static void test_prot_none(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+	int i;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0x11, size, PROT_NONE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		goto unmap;
+
+	/* Store a unique value in each page on one half using ptrace */
+	for (i = 0; i < size / 2; i += pagesize) {
+		lseek(mem_fd, (uintptr_t) map + i, SEEK_SET);
+		if (write(mem_fd, &i, sizeof(i)) != sizeof(i)) {
+			ksft_test_result_fail("ptrace write failed\n");
+			goto unmap;
+		}
+	}
+
+	/* Trigger unsharing on the other half. */
+	if (madvise(map + size / 2, size / 2, MADV_UNMERGEABLE)) {
+		ksft_test_result_fail("MADV_UNMERGEABLE failed\n");
+		goto unmap;
+	}
+
+	ksft_test_result(!range_maps_duplicates(map, size),
+			 "Pages were unmerged\n");
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+static void test_fork_ksm_merging_page_count(void)
+{
+	const unsigned int size = 2 * MiB;
+	char *map;
+	pid_t child_pid;
+	int status;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	map = mmap_and_merge_range(0xcf, size, PROT_READ | PROT_WRITE, KSM_MERGE_MADVISE);
+	if (map == MAP_FAILED)
+		return;
+
+	child_pid = fork();
+	if (!child_pid) {
+		init_global_file_handles();
+		exit(ksm_get_self_merging_pages());
+	} else if (child_pid < 0) {
+		ksft_test_result_fail("fork() failed\n");
+		goto unmap;
+	}
+
+	if (waitpid(child_pid, &status, 0) < 0) {
+		ksft_test_result_fail("waitpid() failed\n");
+		goto unmap;
+	}
+
+	status = WEXITSTATUS(status);
+	if (status) {
+		ksft_test_result_fail("ksm_merging_page in child: %d\n", status);
+		goto unmap;
+	}
+
+	ksft_test_result_pass("ksm_merging_pages is not inherited after fork\n");
+
+unmap:
+	ksm_stop();
+	munmap(map, size);
+}
+
+static void init_global_file_handles(void)
+{
+	mem_fd = open("/proc/self/mem", O_RDWR);
+	if (mem_fd < 0)
+		ksft_exit_fail_msg("opening /proc/self/mem failed\n");
+	if (ksm_stop() < 0)
+		ksft_exit_skip("accessing \"/sys/kernel/mm/ksm/run\") failed\n");
+	if (ksm_get_full_scans() < 0)
+		ksft_exit_skip("accessing \"/sys/kernel/mm/ksm/full_scans\") failed\n");
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_skip("open(\"/proc/self/pagemap\") failed\n");
+	if (ksm_get_self_merging_pages() < 0)
+		ksft_exit_skip("accessing \"/proc/self/ksm_merging_pages\") failed\n");
+
+	pages_to_scan_fd = open("/sys/kernel/mm/ksm/pages_to_scan", O_RDWR);
+	if (pages_to_scan_fd < 0)
+		ksft_exit_fail_msg("opening /sys/kernel/mm/ksm/pages_to_scan failed\n");
+	sleep_millisecs_fd = open("/sys/kernel/mm/ksm/sleep_millisecs", O_RDWR);
+	if (sleep_millisecs_fd < 0)
+		ksft_exit_fail_msg("opening /sys/kernel/mm/ksm/sleep_millisecs failed\n");
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int tests = 9;
+	int err;
+
+	if (argc > 1 && !strcmp(argv[1], FORK_EXEC_CHILD_PRG_NAME)) {
+		init_global_file_handles();
+		exit(test_child_ksm());
+	}
+
+#ifdef __NR_userfaultfd
+	tests++;
+#endif
+
+	ksft_print_header();
+	ksft_set_plan(tests);
+
+	pagesize = getpagesize();
+
+	init_global_file_handles();
+
+	test_unmerge();
+	test_unmerge_zero_pages();
+	test_unmerge_discarded();
+#ifdef __NR_userfaultfd
+	test_unmerge_uffd_wp();
+#endif
+
+	test_prot_none();
+
+	test_prctl();
+	test_prctl_fork();
+	test_prctl_fork_exec();
+	test_prctl_unmerge();
+	test_fork_ksm_merging_page_count();
+
+	err = ksft_get_fail_cnt();
+	if (err)
+		ksft_exit_fail_msg("%d out of %d tests failed\n",
+				   err, ksft_test_num());
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/ksm_tests.c b/tools/testing/selftests/mm/ksm_tests.c
new file mode 100644
index 000000000000..a0b48b839d54
--- /dev/null
+++ b/tools/testing/selftests/mm/ksm_tests.c
@@ -0,0 +1,926 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <stdbool.h>
+#include <time.h>
+#include <string.h>
+#include <numa.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <err.h>
+
+#include "kselftest.h"
+#include <include/vdso/time64.h>
+#include "vm_util.h"
+#include "thp_settings.h"
+
+#define KSM_SYSFS_PATH "/sys/kernel/mm/ksm/"
+#define KSM_FP(s) (KSM_SYSFS_PATH s)
+#define KSM_SCAN_LIMIT_SEC_DEFAULT 120
+#define KSM_PAGE_COUNT_DEFAULT 10l
+#define KSM_PROT_STR_DEFAULT "rw"
+#define KSM_USE_ZERO_PAGES_DEFAULT false
+#define KSM_MERGE_ACROSS_NODES_DEFAULT true
+#define KSM_MERGE_TYPE_DEFAULT 0
+#define MB (1ul << 20)
+
+struct ksm_sysfs {
+	unsigned long max_page_sharing;
+	unsigned long merge_across_nodes;
+	unsigned long pages_to_scan;
+	unsigned long run;
+	unsigned long sleep_millisecs;
+	unsigned long stable_node_chains_prune_millisecs;
+	unsigned long use_zero_pages;
+};
+
+enum ksm_merge_type {
+	KSM_MERGE_MADVISE,
+	KSM_MERGE_PRCTL,
+	KSM_MERGE_LAST = KSM_MERGE_PRCTL
+};
+
+enum ksm_test_name {
+	CHECK_KSM_MERGE,
+	CHECK_KSM_UNMERGE,
+	CHECK_KSM_GET_MERGE_TYPE,
+	CHECK_KSM_ZERO_PAGE_MERGE,
+	CHECK_KSM_NUMA_MERGE,
+	KSM_MERGE_TIME,
+	KSM_MERGE_TIME_HUGE_PAGES,
+	KSM_UNMERGE_TIME,
+	KSM_COW_TIME
+};
+
+int debug;
+
+static int ksm_write_sysfs(const char *file_path, unsigned long val)
+{
+	return write_sysfs(file_path, val);
+}
+
+static int ksm_read_sysfs(const char *file_path, unsigned long *val)
+{
+	return read_sysfs(file_path, val);
+}
+
+static void ksm_print_sysfs(void)
+{
+	unsigned long max_page_sharing, pages_sharing, pages_shared;
+	unsigned long full_scans, pages_unshared, pages_volatile;
+	unsigned long stable_node_chains, stable_node_dups;
+	long general_profit;
+
+	if (ksm_read_sysfs(KSM_FP("pages_shared"), &pages_shared) ||
+	    ksm_read_sysfs(KSM_FP("pages_sharing"), &pages_sharing) ||
+	    ksm_read_sysfs(KSM_FP("max_page_sharing"), &max_page_sharing) ||
+	    ksm_read_sysfs(KSM_FP("full_scans"), &full_scans) ||
+	    ksm_read_sysfs(KSM_FP("pages_unshared"), &pages_unshared) ||
+	    ksm_read_sysfs(KSM_FP("pages_volatile"), &pages_volatile) ||
+	    ksm_read_sysfs(KSM_FP("stable_node_chains"), &stable_node_chains) ||
+	    ksm_read_sysfs(KSM_FP("stable_node_dups"), &stable_node_dups) ||
+	    ksm_read_sysfs(KSM_FP("general_profit"), (unsigned long *)&general_profit))
+		return;
+
+	printf("pages_shared      : %lu\n", pages_shared);
+	printf("pages_sharing     : %lu\n", pages_sharing);
+	printf("max_page_sharing  : %lu\n", max_page_sharing);
+	printf("full_scans        : %lu\n", full_scans);
+	printf("pages_unshared    : %lu\n", pages_unshared);
+	printf("pages_volatile    : %lu\n", pages_volatile);
+	printf("stable_node_chains: %lu\n", stable_node_chains);
+	printf("stable_node_dups  : %lu\n", stable_node_dups);
+	printf("general_profit    : %ld\n", general_profit);
+}
+
+static void ksm_print_procfs(void)
+{
+	const char *file_name = "/proc/self/ksm_stat";
+	char buffer[512];
+	FILE *f = fopen(file_name, "r");
+
+	if (!f) {
+		fprintf(stderr, "f %s\n", file_name);
+		perror("fopen");
+		return;
+	}
+
+	while (fgets(buffer, sizeof(buffer), f))
+		printf("%s", buffer);
+
+	fclose(f);
+}
+
+static int str_to_prot(char *prot_str)
+{
+	int prot = 0;
+
+	if ((strchr(prot_str, 'r')) != NULL)
+		prot |= PROT_READ;
+	if ((strchr(prot_str, 'w')) != NULL)
+		prot |= PROT_WRITE;
+	if ((strchr(prot_str, 'x')) != NULL)
+		prot |= PROT_EXEC;
+
+	return prot;
+}
+
+static void print_help(void)
+{
+	printf("usage: ksm_tests [-h] <test type> [-a prot] [-p page_count] [-l timeout]\n"
+	       "[-z use_zero_pages] [-m merge_across_nodes] [-s size]\n");
+
+	printf("Supported <test type>:\n"
+	       " -M (page merging)\n"
+	       " -Z (zero pages merging)\n"
+	       " -N (merging of pages in different NUMA nodes)\n"
+	       " -U (page unmerging)\n"
+	       " -P evaluate merging time and speed.\n"
+	       "    For this test, the size of duplicated memory area (in MiB)\n"
+	       "    must be provided using -s option\n"
+	       " -H evaluate merging time and speed of area allocated mostly with huge pages\n"
+	       "    For this test, the size of duplicated memory area (in MiB)\n"
+	       "    must be provided using -s option\n"
+	       " -D evaluate unmerging time and speed when disabling KSM.\n"
+	       "    For this test, the size of duplicated memory area (in MiB)\n"
+	       "    must be provided using -s option\n"
+	       " -C evaluate the time required to break COW of merged pages.\n\n");
+
+	printf(" -a: specify the access protections of pages.\n"
+	       "     <prot> must be of the form [rwx].\n"
+	       "     Default: %s\n", KSM_PROT_STR_DEFAULT);
+	printf(" -p: specify the number of pages to test.\n"
+	       "     Default: %ld\n", KSM_PAGE_COUNT_DEFAULT);
+	printf(" -l: limit the maximum running time (in seconds) for a test.\n"
+	       "     Default: %d seconds\n", KSM_SCAN_LIMIT_SEC_DEFAULT);
+	printf(" -z: change use_zero_pages tunable\n"
+	       "     Default: %d\n", KSM_USE_ZERO_PAGES_DEFAULT);
+	printf(" -m: change merge_across_nodes tunable\n"
+	       "     Default: %d\n", KSM_MERGE_ACROSS_NODES_DEFAULT);
+	printf(" -d: turn debugging output on\n");
+	printf(" -s: the size of duplicated memory area (in MiB)\n");
+	printf(" -t: KSM merge type\n"
+	       "     Default: 0\n"
+	       "     0: madvise merging\n"
+	       "     1: prctl merging\n");
+
+	exit(0);
+}
+
+static void  *allocate_memory(void *ptr, int prot, int mapping, char data, size_t map_size)
+{
+	void *map_ptr = mmap(ptr, map_size, PROT_WRITE, mapping, -1, 0);
+
+	if (!map_ptr) {
+		perror("mmap");
+		return NULL;
+	}
+	memset(map_ptr, data, map_size);
+	if (mprotect(map_ptr, map_size, prot)) {
+		perror("mprotect");
+		munmap(map_ptr, map_size);
+		return NULL;
+	}
+
+	return map_ptr;
+}
+
+static int ksm_do_scan(int scan_count, struct timespec start_time, int timeout)
+{
+	struct timespec cur_time;
+	unsigned long cur_scan, init_scan;
+
+	if (ksm_read_sysfs(KSM_FP("full_scans"), &init_scan))
+		return 1;
+	cur_scan = init_scan;
+
+	while (cur_scan < init_scan + scan_count) {
+		if (ksm_read_sysfs(KSM_FP("full_scans"), &cur_scan))
+			return 1;
+		if (clock_gettime(CLOCK_MONOTONIC_RAW, &cur_time)) {
+			perror("clock_gettime");
+			return 1;
+		}
+		if ((cur_time.tv_sec - start_time.tv_sec) > timeout) {
+			printf("Scan time limit exceeded\n");
+			return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int ksm_merge_pages(int merge_type, void *addr, size_t size,
+			struct timespec start_time, int timeout)
+{
+	if (merge_type == KSM_MERGE_MADVISE) {
+		if (madvise(addr, size, MADV_MERGEABLE)) {
+			perror("madvise");
+			return 1;
+		}
+	} else if (merge_type == KSM_MERGE_PRCTL) {
+		if (prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0)) {
+			perror("prctl");
+			return 1;
+		}
+	}
+
+	if (ksm_write_sysfs(KSM_FP("run"), 1))
+		return 1;
+
+	/* Since merging occurs only after 2 scans, make sure to get at least 2 full scans */
+	if (ksm_do_scan(2, start_time, timeout))
+		return 1;
+
+	return 0;
+}
+
+static int ksm_unmerge_pages(void *addr, size_t size,
+			     struct timespec start_time, int timeout)
+{
+	if (madvise(addr, size, MADV_UNMERGEABLE)) {
+		perror("madvise");
+		return 1;
+	}
+	return 0;
+}
+
+static bool assert_ksm_pages_count(long dupl_page_count)
+{
+	unsigned long max_page_sharing, pages_sharing, pages_shared;
+
+	if (ksm_read_sysfs(KSM_FP("pages_shared"), &pages_shared) ||
+	    ksm_read_sysfs(KSM_FP("pages_sharing"), &pages_sharing) ||
+	    ksm_read_sysfs(KSM_FP("max_page_sharing"), &max_page_sharing))
+		return false;
+
+	if (debug) {
+		ksm_print_sysfs();
+		ksm_print_procfs();
+	}
+
+	/*
+	 * Since there must be at least 2 pages for merging and 1 page can be
+	 * shared with the limited number of pages (max_page_sharing), sometimes
+	 * there are 'leftover' pages that cannot be merged. For example, if there
+	 * are 11 pages and max_page_sharing = 10, then only 10 pages will be
+	 * merged and the 11th page won't be affected. As a result, when the number
+	 * of duplicate pages is divided by max_page_sharing and the remainder is 1,
+	 * pages_shared and pages_sharing values will be equal between dupl_page_count
+	 * and dupl_page_count - 1.
+	 */
+	if (dupl_page_count % max_page_sharing == 1 || dupl_page_count % max_page_sharing == 0) {
+		if (pages_shared == dupl_page_count / max_page_sharing &&
+		    pages_sharing == pages_shared * (max_page_sharing - 1))
+			return true;
+	} else {
+		if (pages_shared == (dupl_page_count / max_page_sharing + 1) &&
+		    pages_sharing == dupl_page_count - pages_shared)
+			return true;
+	}
+
+	return false;
+}
+
+static int ksm_save_def(struct ksm_sysfs *ksm_sysfs)
+{
+	if (ksm_read_sysfs(KSM_FP("max_page_sharing"), &ksm_sysfs->max_page_sharing) ||
+	    numa_available() ? 0 :
+		ksm_read_sysfs(KSM_FP("merge_across_nodes"), &ksm_sysfs->merge_across_nodes) ||
+	    ksm_read_sysfs(KSM_FP("sleep_millisecs"), &ksm_sysfs->sleep_millisecs) ||
+	    ksm_read_sysfs(KSM_FP("pages_to_scan"), &ksm_sysfs->pages_to_scan) ||
+	    ksm_read_sysfs(KSM_FP("run"), &ksm_sysfs->run) ||
+	    ksm_read_sysfs(KSM_FP("stable_node_chains_prune_millisecs"),
+			   &ksm_sysfs->stable_node_chains_prune_millisecs) ||
+	    ksm_read_sysfs(KSM_FP("use_zero_pages"), &ksm_sysfs->use_zero_pages))
+		return 1;
+
+	return 0;
+}
+
+static int ksm_restore(struct ksm_sysfs *ksm_sysfs)
+{
+	if (ksm_write_sysfs(KSM_FP("max_page_sharing"), ksm_sysfs->max_page_sharing) ||
+	    numa_available() ? 0 :
+		ksm_write_sysfs(KSM_FP("merge_across_nodes"), ksm_sysfs->merge_across_nodes) ||
+	    ksm_write_sysfs(KSM_FP("pages_to_scan"), ksm_sysfs->pages_to_scan) ||
+	    ksm_write_sysfs(KSM_FP("run"), ksm_sysfs->run) ||
+	    ksm_write_sysfs(KSM_FP("sleep_millisecs"), ksm_sysfs->sleep_millisecs) ||
+	    ksm_write_sysfs(KSM_FP("stable_node_chains_prune_millisecs"),
+			    ksm_sysfs->stable_node_chains_prune_millisecs) ||
+	    ksm_write_sysfs(KSM_FP("use_zero_pages"), ksm_sysfs->use_zero_pages))
+		return 1;
+
+	return 0;
+}
+
+static int check_ksm_merge(int merge_type, int mapping, int prot,
+			long page_count, int timeout, size_t page_size)
+{
+	void *map_ptr;
+	struct timespec start_time;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+
+	/* fill pages with the same data and merge them */
+	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);
+	if (!map_ptr)
+		return KSFT_FAIL;
+
+	if (ksm_merge_pages(merge_type, map_ptr, page_size * page_count, start_time, timeout))
+		goto err_out;
+
+	/* verify that the right number of pages are merged */
+	if (assert_ksm_pages_count(page_count)) {
+		printf("OK\n");
+		munmap(map_ptr, page_size * page_count);
+		if (merge_type == KSM_MERGE_PRCTL)
+			prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0);
+		return KSFT_PASS;
+	}
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_FAIL;
+}
+
+static int check_ksm_unmerge(int merge_type, int mapping, int prot, int timeout, size_t page_size)
+{
+	void *map_ptr;
+	struct timespec start_time;
+	int page_count = 2;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+
+	/* fill pages with the same data and merge them */
+	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);
+	if (!map_ptr)
+		return KSFT_FAIL;
+
+	if (ksm_merge_pages(merge_type, map_ptr, page_size * page_count, start_time, timeout))
+		goto err_out;
+
+	/* change 1 byte in each of the 2 pages -- KSM must automatically unmerge them */
+	memset(map_ptr, '-', 1);
+	memset(map_ptr + page_size, '+', 1);
+
+	/* get at least 1 scan, so KSM can detect that the pages were modified */
+	if (ksm_do_scan(1, start_time, timeout))
+		goto err_out;
+
+	/* check that unmerging was successful and 0 pages are currently merged */
+	if (assert_ksm_pages_count(0)) {
+		printf("OK\n");
+		munmap(map_ptr, page_size * page_count);
+		return KSFT_PASS;
+	}
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_FAIL;
+}
+
+static int check_ksm_zero_page_merge(int merge_type, int mapping, int prot, long page_count,
+				int timeout, bool use_zero_pages, size_t page_size)
+{
+	void *map_ptr;
+	struct timespec start_time;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+
+	if (ksm_write_sysfs(KSM_FP("use_zero_pages"), use_zero_pages))
+		return KSFT_FAIL;
+
+	/* fill pages with zero and try to merge them */
+	map_ptr = allocate_memory(NULL, prot, mapping, 0, page_size * page_count);
+	if (!map_ptr)
+		return KSFT_FAIL;
+
+	if (ksm_merge_pages(merge_type, map_ptr, page_size * page_count, start_time, timeout))
+		goto err_out;
+
+       /*
+	* verify that the right number of pages are merged:
+	* 1) if use_zero_pages is set to 1, empty pages are merged
+	*    with the kernel zero page instead of with each other;
+	* 2) if use_zero_pages is set to 0, empty pages are not treated specially
+	*    and merged as usual.
+	*/
+	if (use_zero_pages && !assert_ksm_pages_count(0))
+		goto err_out;
+	else if (!use_zero_pages && !assert_ksm_pages_count(page_count))
+		goto err_out;
+
+	printf("OK\n");
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_PASS;
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_FAIL;
+}
+
+static int get_next_mem_node(int node)
+{
+
+	long node_size;
+	int mem_node = 0;
+	int i, max_node = numa_max_node();
+
+	for (i = node + 1; i <= max_node + node; i++) {
+		mem_node = i % (max_node + 1);
+		node_size = numa_node_size(mem_node, NULL);
+		if (node_size > 0)
+			break;
+	}
+	return mem_node;
+}
+
+static int get_first_mem_node(void)
+{
+	return get_next_mem_node(numa_max_node());
+}
+
+static int check_ksm_numa_merge(int merge_type, int mapping, int prot, int timeout,
+				bool merge_across_nodes, size_t page_size)
+{
+	void *numa1_map_ptr, *numa2_map_ptr;
+	struct timespec start_time;
+	int page_count = 2;
+	int first_node;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+
+	if (numa_available() < 0) {
+		perror("NUMA support not enabled");
+		return KSFT_SKIP;
+	}
+	if (numa_num_configured_nodes() <= 1) {
+		printf("At least 2 NUMA nodes must be available\n");
+		return KSFT_SKIP;
+	}
+	if (ksm_write_sysfs(KSM_FP("merge_across_nodes"), merge_across_nodes))
+		return KSFT_FAIL;
+
+	/* allocate 2 pages in 2 different NUMA nodes and fill them with the same data */
+	first_node = get_first_mem_node();
+	numa1_map_ptr = numa_alloc_onnode(page_size, first_node);
+	numa2_map_ptr = numa_alloc_onnode(page_size, get_next_mem_node(first_node));
+	if (!numa1_map_ptr || !numa2_map_ptr) {
+		perror("numa_alloc_onnode");
+		return KSFT_FAIL;
+	}
+
+	memset(numa1_map_ptr, '*', page_size);
+	memset(numa2_map_ptr, '*', page_size);
+
+	/* try to merge the pages */
+	if (ksm_merge_pages(merge_type, numa1_map_ptr, page_size, start_time, timeout) ||
+	    ksm_merge_pages(merge_type, numa2_map_ptr, page_size, start_time, timeout))
+		goto err_out;
+
+       /*
+	* verify that the right number of pages are merged:
+	* 1) if merge_across_nodes was enabled, 2 duplicate pages will be merged;
+	* 2) if merge_across_nodes = 0, there must be 0 merged pages, since there is
+	*    only 1 unique page in each node and they can't be shared.
+	*/
+	if (merge_across_nodes && !assert_ksm_pages_count(page_count))
+		goto err_out;
+	else if (!merge_across_nodes && !assert_ksm_pages_count(0))
+		goto err_out;
+
+	numa_free(numa1_map_ptr, page_size);
+	numa_free(numa2_map_ptr, page_size);
+	printf("OK\n");
+	return KSFT_PASS;
+
+err_out:
+	numa_free(numa1_map_ptr, page_size);
+	numa_free(numa2_map_ptr, page_size);
+	printf("Not OK\n");
+	return KSFT_FAIL;
+}
+
+static int ksm_merge_hugepages_time(int merge_type, int mapping, int prot,
+				int timeout, size_t map_size)
+{
+	void *map_ptr, *map_ptr_orig;
+	struct timespec start_time, end_time;
+	unsigned long scan_time_ns;
+	int pagemap_fd, n_normal_pages, n_huge_pages;
+
+	if (!thp_is_enabled()) {
+		printf("Transparent Hugepages not available\n");
+		return KSFT_SKIP;
+	}
+
+	map_size *= MB;
+	size_t len = map_size;
+
+	len -= len % HPAGE_SIZE;
+	map_ptr_orig = mmap(NULL, len + HPAGE_SIZE, PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE, -1, 0);
+	map_ptr = map_ptr_orig + HPAGE_SIZE - (uintptr_t)map_ptr_orig % HPAGE_SIZE;
+
+	if (map_ptr_orig == MAP_FAILED)
+		err(2, "initial mmap");
+
+	if (madvise(map_ptr, len, MADV_HUGEPAGE))
+		err(2, "MADV_HUGEPAGE");
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		err(2, "open pagemap");
+
+	n_normal_pages = 0;
+	n_huge_pages = 0;
+	for (void *p = map_ptr; p < map_ptr + len; p += HPAGE_SIZE) {
+		if (allocate_transhuge(p, pagemap_fd) < 0)
+			n_normal_pages++;
+		else
+			n_huge_pages++;
+	}
+	printf("Number of normal pages:    %d\n", n_normal_pages);
+	printf("Number of huge pages:    %d\n", n_huge_pages);
+
+	memset(map_ptr, '*', len);
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+	if (ksm_merge_pages(merge_type, map_ptr, map_size, start_time, timeout))
+		goto err_out;
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &end_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+
+	scan_time_ns = (end_time.tv_sec - start_time.tv_sec) * NSEC_PER_SEC +
+		       (end_time.tv_nsec - start_time.tv_nsec);
+
+	printf("Total size:    %lu MiB\n", map_size / MB);
+	printf("Total time:    %ld.%09ld s\n", scan_time_ns / NSEC_PER_SEC,
+	       scan_time_ns % NSEC_PER_SEC);
+	printf("Average speed:  %.3f MiB/s\n", (map_size / MB) /
+					       ((double)scan_time_ns / NSEC_PER_SEC));
+
+	munmap(map_ptr_orig, len + HPAGE_SIZE);
+	return KSFT_PASS;
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr_orig, len + HPAGE_SIZE);
+	return KSFT_FAIL;
+}
+
+static int ksm_merge_time(int merge_type, int mapping, int prot, int timeout, size_t map_size)
+{
+	void *map_ptr;
+	struct timespec start_time, end_time;
+	unsigned long scan_time_ns;
+
+	map_size *= MB;
+
+	map_ptr = allocate_memory(NULL, prot, mapping, '*', map_size);
+	if (!map_ptr)
+		return KSFT_FAIL;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+	if (ksm_merge_pages(merge_type, map_ptr, map_size, start_time, timeout))
+		goto err_out;
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &end_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+
+	scan_time_ns = (end_time.tv_sec - start_time.tv_sec) * NSEC_PER_SEC +
+		       (end_time.tv_nsec - start_time.tv_nsec);
+
+	printf("Total size:    %lu MiB\n", map_size / MB);
+	printf("Total time:    %ld.%09ld s\n", scan_time_ns / NSEC_PER_SEC,
+	       scan_time_ns % NSEC_PER_SEC);
+	printf("Average speed:  %.3f MiB/s\n", (map_size / MB) /
+					       ((double)scan_time_ns / NSEC_PER_SEC));
+
+	munmap(map_ptr, map_size);
+	return KSFT_PASS;
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, map_size);
+	return KSFT_FAIL;
+}
+
+static int ksm_unmerge_time(int merge_type, int mapping, int prot, int timeout, size_t map_size)
+{
+	void *map_ptr;
+	struct timespec start_time, end_time;
+	unsigned long scan_time_ns;
+
+	map_size *= MB;
+
+	map_ptr = allocate_memory(NULL, prot, mapping, '*', map_size);
+	if (!map_ptr)
+		return KSFT_FAIL;
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+	if (ksm_merge_pages(merge_type, map_ptr, map_size, start_time, timeout))
+		goto err_out;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+	if (ksm_unmerge_pages(map_ptr, map_size, start_time, timeout))
+		goto err_out;
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &end_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+
+	scan_time_ns = (end_time.tv_sec - start_time.tv_sec) * NSEC_PER_SEC +
+		       (end_time.tv_nsec - start_time.tv_nsec);
+
+	printf("Total size:    %lu MiB\n", map_size / MB);
+	printf("Total time:    %ld.%09ld s\n", scan_time_ns / NSEC_PER_SEC,
+	       scan_time_ns % NSEC_PER_SEC);
+	printf("Average speed:  %.3f MiB/s\n", (map_size / MB) /
+					       ((double)scan_time_ns / NSEC_PER_SEC));
+
+	munmap(map_ptr, map_size);
+	return KSFT_PASS;
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, map_size);
+	return KSFT_FAIL;
+}
+
+static int ksm_cow_time(int merge_type, int mapping, int prot, int timeout, size_t page_size)
+{
+	void *map_ptr;
+	struct timespec start_time, end_time;
+	unsigned long cow_time_ns;
+
+	/* page_count must be less than 2*page_size */
+	size_t page_count = 4000;
+
+	map_ptr = allocate_memory(NULL, prot, mapping, '*', page_size * page_count);
+	if (!map_ptr)
+		return KSFT_FAIL;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+	for (size_t i = 0; i < page_count - 1; i = i + 2)
+		memset(map_ptr + page_size * i, '-', 1);
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &end_time)) {
+		perror("clock_gettime");
+		return KSFT_FAIL;
+	}
+
+	cow_time_ns = (end_time.tv_sec - start_time.tv_sec) * NSEC_PER_SEC +
+		       (end_time.tv_nsec - start_time.tv_nsec);
+
+	printf("Total size:    %lu MiB\n\n", (page_size * page_count) / MB);
+	printf("Not merged pages:\n");
+	printf("Total time:     %ld.%09ld s\n", cow_time_ns / NSEC_PER_SEC,
+	       cow_time_ns % NSEC_PER_SEC);
+	printf("Average speed:  %.3f MiB/s\n\n", ((page_size * (page_count / 2)) / MB) /
+					       ((double)cow_time_ns / NSEC_PER_SEC));
+
+	/* Create 2000 pairs of duplicate pages */
+	for (size_t i = 0; i < page_count - 1; i = i + 2) {
+		memset(map_ptr + page_size * i, '+', i / 2 + 1);
+		memset(map_ptr + page_size * (i + 1), '+', i / 2 + 1);
+	}
+	if (ksm_merge_pages(merge_type, map_ptr, page_size * page_count, start_time, timeout))
+		goto err_out;
+
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &start_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+	for (size_t i = 0; i < page_count - 1; i = i + 2)
+		memset(map_ptr + page_size * i, '-', 1);
+	if (clock_gettime(CLOCK_MONOTONIC_RAW, &end_time)) {
+		perror("clock_gettime");
+		goto err_out;
+	}
+
+	cow_time_ns = (end_time.tv_sec - start_time.tv_sec) * NSEC_PER_SEC +
+		       (end_time.tv_nsec - start_time.tv_nsec);
+
+	printf("Merged pages:\n");
+	printf("Total time:     %ld.%09ld s\n", cow_time_ns / NSEC_PER_SEC,
+	       cow_time_ns % NSEC_PER_SEC);
+	printf("Average speed:  %.3f MiB/s\n", ((page_size * (page_count / 2)) / MB) /
+					       ((double)cow_time_ns / NSEC_PER_SEC));
+
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_PASS;
+
+err_out:
+	printf("Not OK\n");
+	munmap(map_ptr, page_size * page_count);
+	return KSFT_FAIL;
+}
+
+int main(int argc, char *argv[])
+{
+	int ret = 0, opt;
+	int prot = 0;
+	int ksm_scan_limit_sec = KSM_SCAN_LIMIT_SEC_DEFAULT;
+	int merge_type = KSM_MERGE_TYPE_DEFAULT;
+	long page_count = KSM_PAGE_COUNT_DEFAULT;
+	size_t page_size = sysconf(_SC_PAGESIZE);
+	struct ksm_sysfs ksm_sysfs_old;
+	int test_name = CHECK_KSM_MERGE;
+	bool use_zero_pages = KSM_USE_ZERO_PAGES_DEFAULT;
+	bool merge_across_nodes = KSM_MERGE_ACROSS_NODES_DEFAULT;
+	long size_MB = 0;
+
+	while ((opt = getopt(argc, argv, "dha:p:l:z:m:s:t:MUZNPCHD")) != -1) {
+		switch (opt) {
+		case 'a':
+			prot = str_to_prot(optarg);
+			break;
+		case 'p':
+			page_count = atol(optarg);
+			if (page_count <= 0) {
+				printf("The number of pages must be greater than 0\n");
+				return KSFT_FAIL;
+			}
+			break;
+		case 'l':
+			ksm_scan_limit_sec = atoi(optarg);
+			if (ksm_scan_limit_sec <= 0) {
+				printf("Timeout value must be greater than 0\n");
+				return KSFT_FAIL;
+			}
+			break;
+		case 'h':
+			print_help();
+			break;
+		case 'z':
+			if (strcmp(optarg, "0") == 0)
+				use_zero_pages = 0;
+			else
+				use_zero_pages = 1;
+			break;
+		case 'm':
+			if (strcmp(optarg, "0") == 0)
+				merge_across_nodes = 0;
+			else
+				merge_across_nodes = 1;
+			break;
+		case 'd':
+			debug = 1;
+			break;
+		case 's':
+			size_MB = atoi(optarg);
+			if (size_MB <= 0) {
+				printf("Size must be greater than 0\n");
+				return KSFT_FAIL;
+			}
+			break;
+		case 't':
+			{
+				int tmp = atoi(optarg);
+
+				if (tmp < 0 || tmp > KSM_MERGE_LAST) {
+					printf("Invalid merge type\n");
+					return KSFT_FAIL;
+				}
+				merge_type = tmp;
+			}
+			break;
+		case 'M':
+			break;
+		case 'U':
+			test_name = CHECK_KSM_UNMERGE;
+			break;
+		case 'Z':
+			test_name = CHECK_KSM_ZERO_PAGE_MERGE;
+			break;
+		case 'N':
+			test_name = CHECK_KSM_NUMA_MERGE;
+			break;
+		case 'P':
+			test_name = KSM_MERGE_TIME;
+			break;
+		case 'H':
+			test_name = KSM_MERGE_TIME_HUGE_PAGES;
+			break;
+		case 'D':
+			test_name = KSM_UNMERGE_TIME;
+			break;
+		case 'C':
+			test_name = KSM_COW_TIME;
+			break;
+		default:
+			return KSFT_FAIL;
+		}
+	}
+
+	if (prot == 0)
+		prot = str_to_prot(KSM_PROT_STR_DEFAULT);
+
+	if (access(KSM_SYSFS_PATH, F_OK)) {
+		printf("Config KSM not enabled\n");
+		return KSFT_SKIP;
+	}
+
+	if (ksm_save_def(&ksm_sysfs_old)) {
+		printf("Cannot save default tunables\n");
+		return KSFT_FAIL;
+	}
+
+	if (ksm_write_sysfs(KSM_FP("run"), 2) ||
+	    ksm_write_sysfs(KSM_FP("sleep_millisecs"), 0) ||
+	    numa_available() ? 0 :
+		ksm_write_sysfs(KSM_FP("merge_across_nodes"), 1) ||
+	    ksm_write_sysfs(KSM_FP("pages_to_scan"), page_count))
+		return KSFT_FAIL;
+
+	switch (test_name) {
+	case CHECK_KSM_MERGE:
+		ret = check_ksm_merge(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot, page_count,
+				      ksm_scan_limit_sec, page_size);
+		break;
+	case CHECK_KSM_UNMERGE:
+		ret = check_ksm_unmerge(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+					ksm_scan_limit_sec, page_size);
+		break;
+	case CHECK_KSM_ZERO_PAGE_MERGE:
+		ret = check_ksm_zero_page_merge(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+						page_count, ksm_scan_limit_sec, use_zero_pages,
+						page_size);
+		break;
+	case CHECK_KSM_NUMA_MERGE:
+		ret = check_ksm_numa_merge(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+					ksm_scan_limit_sec, merge_across_nodes, page_size);
+		break;
+	case KSM_MERGE_TIME:
+		if (size_MB == 0) {
+			printf("Option '-s' is required.\n");
+			return KSFT_FAIL;
+		}
+		ret = ksm_merge_time(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+				ksm_scan_limit_sec, size_MB);
+		break;
+	case KSM_MERGE_TIME_HUGE_PAGES:
+		if (size_MB == 0) {
+			printf("Option '-s' is required.\n");
+			return KSFT_FAIL;
+		}
+		ret = ksm_merge_hugepages_time(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+				ksm_scan_limit_sec, size_MB);
+		break;
+	case KSM_UNMERGE_TIME:
+		if (size_MB == 0) {
+			printf("Option '-s' is required.\n");
+			return KSFT_FAIL;
+		}
+		ret = ksm_unmerge_time(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+				       ksm_scan_limit_sec, size_MB);
+		break;
+	case KSM_COW_TIME:
+		ret = ksm_cow_time(merge_type, MAP_PRIVATE | MAP_ANONYMOUS, prot,
+				ksm_scan_limit_sec, page_size);
+		break;
+	}
+
+	if (ksm_restore(&ksm_sysfs_old)) {
+		printf("Cannot restore default tunables\n");
+		return KSFT_FAIL;
+	}
+
+	return ret;
+}
diff --git a/tools/testing/selftests/mm/madv_populate.c b/tools/testing/selftests/mm/madv_populate.c
new file mode 100644
index 000000000000..88050e0f829a
--- /dev/null
+++ b/tools/testing/selftests/mm/madv_populate.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * MADV_POPULATE_READ and MADV_POPULATE_WRITE tests
+ *
+ * Copyright 2021, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "vm_util.h"
+
+/*
+ * For now, we're using 2 MiB of private anonymous memory for all tests.
+ */
+#define SIZE (2 * 1024 * 1024)
+
+static size_t pagesize;
+
+static void sense_support(void)
+{
+	char *addr;
+	int ret;
+
+	addr = mmap(0, pagesize, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (!addr)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	ret = madvise(addr, pagesize, MADV_POPULATE_READ);
+	if (ret)
+		ksft_exit_skip("MADV_POPULATE_READ is not available\n");
+
+	ret = madvise(addr, pagesize, MADV_POPULATE_WRITE);
+	if (ret)
+		ksft_exit_skip("MADV_POPULATE_WRITE is not available\n");
+
+	munmap(addr, pagesize);
+}
+
+static void test_prot_read(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_READ);
+	ksft_test_result(!ret, "MADV_POPULATE_READ with PROT_READ\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_WRITE);
+	ksft_test_result(ret == -1 && errno == EINVAL,
+			 "MADV_POPULATE_WRITE with PROT_READ\n");
+
+	munmap(addr, SIZE);
+}
+
+static void test_prot_write(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_READ);
+	ksft_test_result(ret == -1 && errno == EINVAL,
+			 "MADV_POPULATE_READ with PROT_WRITE\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_WRITE);
+	ksft_test_result(!ret, "MADV_POPULATE_WRITE with PROT_WRITE\n");
+
+	munmap(addr, SIZE);
+}
+
+static void test_holes(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+	ret = munmap(addr + pagesize, pagesize);
+	if (ret)
+		ksft_exit_fail_msg("munmap failed\n");
+
+	/* Hole in the middle */
+	ret = madvise(addr, SIZE, MADV_POPULATE_READ);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_READ with holes in the middle\n");
+	ret = madvise(addr, SIZE, MADV_POPULATE_WRITE);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_WRITE with holes in the middle\n");
+
+	/* Hole at end */
+	ret = madvise(addr, 2 * pagesize, MADV_POPULATE_READ);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_READ with holes at the end\n");
+	ret = madvise(addr, 2 * pagesize, MADV_POPULATE_WRITE);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_WRITE with holes at the end\n");
+
+	/* Hole at beginning */
+	ret = madvise(addr + pagesize, pagesize, MADV_POPULATE_READ);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_READ with holes at the beginning\n");
+	ret = madvise(addr + pagesize, pagesize, MADV_POPULATE_WRITE);
+	ksft_test_result(ret == -1 && errno == ENOMEM,
+			 "MADV_POPULATE_WRITE with holes at the beginning\n");
+
+	munmap(addr, SIZE);
+}
+
+static bool range_is_populated(char *start, ssize_t size)
+{
+	int fd = open("/proc/self/pagemap", O_RDONLY);
+	bool ret = true;
+
+	if (fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+	for (; size > 0 && ret; size -= pagesize, start += pagesize)
+		if (!pagemap_is_populated(fd, start))
+			ret = false;
+	close(fd);
+	return ret;
+}
+
+static bool range_is_not_populated(char *start, ssize_t size)
+{
+	int fd = open("/proc/self/pagemap", O_RDONLY);
+	bool ret = true;
+
+	if (fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+	for (; size > 0 && ret; size -= pagesize, start += pagesize)
+		if (pagemap_is_populated(fd, start))
+			ret = false;
+	close(fd);
+	return ret;
+}
+
+static void test_populate_read(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+	ksft_test_result(range_is_not_populated(addr, SIZE),
+			 "read range initially not populated\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_READ);
+	ksft_test_result(!ret, "MADV_POPULATE_READ\n");
+	ksft_test_result(range_is_populated(addr, SIZE),
+			 "read range is populated\n");
+
+	munmap(addr, SIZE);
+}
+
+static void test_populate_write(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+	ksft_test_result(range_is_not_populated(addr, SIZE),
+			 "write range initially not populated\n");
+
+	ret = madvise(addr, SIZE, MADV_POPULATE_WRITE);
+	ksft_test_result(!ret, "MADV_POPULATE_WRITE\n");
+	ksft_test_result(range_is_populated(addr, SIZE),
+			 "write range is populated\n");
+
+	munmap(addr, SIZE);
+}
+
+static bool range_is_softdirty(char *start, ssize_t size)
+{
+	int fd = open("/proc/self/pagemap", O_RDONLY);
+	bool ret = true;
+
+	if (fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+	for (; size > 0 && ret; size -= pagesize, start += pagesize)
+		if (!pagemap_is_softdirty(fd, start))
+			ret = false;
+	close(fd);
+	return ret;
+}
+
+static bool range_is_not_softdirty(char *start, ssize_t size)
+{
+	int fd = open("/proc/self/pagemap", O_RDONLY);
+	bool ret = true;
+
+	if (fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+	for (; size > 0 && ret; size -= pagesize, start += pagesize)
+		if (pagemap_is_softdirty(fd, start))
+			ret = false;
+	close(fd);
+	return ret;
+}
+
+static void test_softdirty(void)
+{
+	char *addr;
+	int ret;
+
+	ksft_print_msg("[RUN] %s\n", __func__);
+
+	addr = mmap(0, SIZE, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	/* Clear any softdirty bits. */
+	clear_softdirty();
+	ksft_test_result(range_is_not_softdirty(addr, SIZE),
+			 "cleared range is not softdirty\n");
+
+	/* Populating READ should set softdirty. */
+	ret = madvise(addr, SIZE, MADV_POPULATE_READ);
+	ksft_test_result(!ret, "softdirty MADV_POPULATE_READ\n");
+	ksft_test_result(range_is_not_softdirty(addr, SIZE),
+			 "range is not softdirty after MADV_POPULATE_READ\n");
+
+	/* Populating WRITE should set softdirty. */
+	ret = madvise(addr, SIZE, MADV_POPULATE_WRITE);
+	ksft_test_result(!ret, "softdirty MADV_POPULATE_WRITE\n");
+	ksft_test_result(range_is_softdirty(addr, SIZE),
+			 "range is softdirty after MADV_POPULATE_WRITE \n");
+
+	munmap(addr, SIZE);
+}
+
+int main(int argc, char **argv)
+{
+	int nr_tests = 16;
+	int err;
+
+	pagesize = getpagesize();
+
+	if (softdirty_supported())
+		nr_tests += 5;
+
+	ksft_print_header();
+	ksft_set_plan(nr_tests);
+
+	sense_support();
+	test_prot_read();
+	test_prot_write();
+	test_holes();
+	test_populate_read();
+	test_populate_write();
+	if (softdirty_supported())
+		test_softdirty();
+
+	err = ksft_get_fail_cnt();
+	if (err)
+		ksft_exit_fail_msg("%d out of %d tests failed\n",
+				   err, ksft_test_num());
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/map_fixed_noreplace.c b/tools/testing/selftests/mm/map_fixed_noreplace.c
new file mode 100644
index 000000000000..11241edde7fe
--- /dev/null
+++ b/tools/testing/selftests/mm/map_fixed_noreplace.c
@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Test that MAP_FIXED_NOREPLACE works.
+ *
+ * Copyright 2018, Jann Horn <jannh@google.com>
+ * Copyright 2018, Michael Ellerman, IBM Corporation.
+ */
+
+#include <sys/mman.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include "kselftest.h"
+
+static void dump_maps(void)
+{
+	char cmd[32];
+
+	snprintf(cmd, sizeof(cmd), "cat /proc/%d/maps", getpid());
+	system(cmd);
+}
+
+static unsigned long find_base_addr(unsigned long size)
+{
+	void *addr;
+	unsigned long flags;
+
+	flags = MAP_PRIVATE | MAP_ANONYMOUS;
+	addr = mmap(NULL, size, PROT_NONE, flags, -1, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");
+
+	if (munmap(addr, size) != 0)
+		ksft_exit_fail_msg("Error: munmap failed\n");
+
+	return (unsigned long)addr;
+}
+
+int main(void)
+{
+	unsigned long base_addr;
+	unsigned long flags, addr, size, page_size;
+	char *p;
+
+	ksft_print_header();
+	ksft_set_plan(9);
+
+	page_size = sysconf(_SC_PAGE_SIZE);
+
+	/* let's find a base addr that is free before we start the tests */
+	size = 5 * page_size;
+	base_addr = find_base_addr(size);
+
+	flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE;
+
+	/* Check we can map all the areas we need below */
+	addr = base_addr;
+	size = 5 * page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p == MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error: couldn't map the space we need for the test\n");
+	}
+	if (munmap((void *)addr, 5 * page_size) != 0) {
+		dump_maps();
+		ksft_exit_fail_msg("Error: munmap failed!?\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() 5*PAGE_SIZE at base\n");
+
+	addr = base_addr + page_size;
+	size = 3 * page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p == MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error: first mmap() failed unexpectedly\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() 3*PAGE_SIZE at base+PAGE_SIZE\n");
+
+	/*
+	 * Exact same mapping again:
+	 *   base |  free  | new
+	 *     +1 | mapped | new
+	 *     +2 | mapped | new
+	 *     +3 | mapped | new
+	 *     +4 |  free  | new
+	 */
+	addr = base_addr;
+	size = 5 * page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p != MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:1: mmap() succeeded when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("Second mmap() 5*PAGE_SIZE at base\n");
+
+	/*
+	 * Second mapping contained within first:
+	 *
+	 *   base |  free  |
+	 *     +1 | mapped |
+	 *     +2 | mapped | new
+	 *     +3 | mapped |
+	 *     +4 |  free  |
+	 */
+	addr = base_addr + (2 * page_size);
+	size = page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p != MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:2: mmap() succeeded when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() 2*PAGE_SIZE at base+PAGE_SIZE\n");
+
+	/*
+	 * Overlap end of existing mapping:
+	 *   base |  free  |
+	 *     +1 | mapped |
+	 *     +2 | mapped |
+	 *     +3 | mapped | new
+	 *     +4 |  free  | new
+	 */
+	addr = base_addr + (3 * page_size);
+	size = 2 * page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p != MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:3: mmap() succeeded when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() 2*PAGE_SIZE  at base+(3*PAGE_SIZE)\n");
+
+	/*
+	 * Overlap start of existing mapping:
+	 *   base |  free  | new
+	 *     +1 | mapped | new
+	 *     +2 | mapped |
+	 *     +3 | mapped |
+	 *     +4 |  free  |
+	 */
+	addr = base_addr;
+	size = 2 * page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p != MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:4: mmap() succeeded when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() 2*PAGE_SIZE bytes at base\n");
+
+	/*
+	 * Adjacent to start of existing mapping:
+	 *   base |  free  | new
+	 *     +1 | mapped |
+	 *     +2 | mapped |
+	 *     +3 | mapped |
+	 *     +4 |  free  |
+	 */
+	addr = base_addr;
+	size = page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p == MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:5: mmap() failed when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() PAGE_SIZE at base\n");
+
+	/*
+	 * Adjacent to end of existing mapping:
+	 *   base |  free  |
+	 *     +1 | mapped |
+	 *     +2 | mapped |
+	 *     +3 | mapped |
+	 *     +4 |  free  |  new
+	 */
+	addr = base_addr + (4 * page_size);
+	size = page_size;
+	p = mmap((void *)addr, size, PROT_NONE, flags, -1, 0);
+	if (p == MAP_FAILED) {
+		dump_maps();
+		ksft_exit_fail_msg("Error:6: mmap() failed when it shouldn't have\n");
+	}
+	ksft_print_msg("mmap() @ 0x%lx-0x%lx p=%p result=%m\n", addr, addr + size, p);
+	ksft_test_result_pass("mmap() PAGE_SIZE at base+(4*PAGE_SIZE)\n");
+
+	addr = base_addr;
+	size = 5 * page_size;
+	if (munmap((void *)addr, size) != 0) {
+		dump_maps();
+		ksft_exit_fail_msg("Error: munmap failed!?\n");
+	}
+	ksft_test_result_pass("Base Address unmap() successful\n");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/map_hugetlb.c b/tools/testing/selftests/mm/map_hugetlb.c
new file mode 100644
index 000000000000..aa409107611b
--- /dev/null
+++ b/tools/testing/selftests/mm/map_hugetlb.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Example of using hugepage memory in a user application using the mmap
+ * system call with MAP_HUGETLB flag.  Before running this program make
+ * sure the administrator has allocated enough default sized huge pages
+ * to cover the 256 MB allocation.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+#define LENGTH (256UL*1024*1024)
+#define PROTECTION (PROT_READ | PROT_WRITE)
+
+static void check_bytes(char *addr)
+{
+	ksft_print_msg("First hex is %x\n", *((unsigned int *)addr));
+}
+
+static void write_bytes(char *addr, size_t length)
+{
+	unsigned long i;
+
+	for (i = 0; i < length; i++)
+		*(addr + i) = (char)i;
+}
+
+static void read_bytes(char *addr, size_t length)
+{
+	unsigned long i;
+
+	check_bytes(addr);
+	for (i = 0; i < length; i++)
+		if (*(addr + i) != (char)i)
+			ksft_exit_fail_msg("Mismatch at %lu\n", i);
+
+	ksft_test_result_pass("Read correct data\n");
+}
+
+int main(int argc, char **argv)
+{
+	void *addr;
+	size_t hugepage_size;
+	size_t length = LENGTH;
+	int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB;
+	int shift = 0;
+
+	hugepage_size = default_huge_page_size();
+	/* munmap with fail if the length is not page aligned */
+	if (hugepage_size > length)
+		length = hugepage_size;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	if (argc > 1)
+		length = atol(argv[1]) << 20;
+	if (argc > 2) {
+		shift = atoi(argv[2]);
+		if (shift)
+			flags |= (shift & MAP_HUGE_MASK) << MAP_HUGE_SHIFT;
+	}
+
+	if (shift)
+		ksft_print_msg("%u kB hugepages\n", 1 << (shift - 10));
+	else
+		ksft_print_msg("Default size hugepages\n");
+	ksft_print_msg("Mapping %lu Mbytes\n", (unsigned long)length >> 20);
+
+	addr = mmap(NULL, length, PROTECTION, flags, -1, 0);
+	if (addr == MAP_FAILED)
+		ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
+	ksft_print_msg("Returned address is %p\n", addr);
+	check_bytes(addr);
+	write_bytes(addr, length);
+	read_bytes(addr, length);
+
+	/* munmap() length of MAP_HUGETLB memory must be hugepage aligned */
+	if (munmap(addr, length))
+		ksft_exit_fail_msg("munmap: %s\n", strerror(errno));
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/map_populate.c b/tools/testing/selftests/mm/map_populate.c
new file mode 100644
index 000000000000..712327f4e932
--- /dev/null
+++ b/tools/testing/selftests/mm/map_populate.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018 Dmitry Safonov, Arista Networks
+ *
+ * MAP_POPULATE | MAP_PRIVATE should COW VMA pages.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include "kselftest.h"
+
+#include "vm_util.h"
+
+#define MMAP_SZ		4096
+
+#define BUG_ON(condition, description)						\
+	do {									\
+		if (condition)							\
+			ksft_exit_fail_msg("[FAIL]\t%s:%d\t%s:%s\n",		\
+					   __func__, __LINE__, (description),	\
+					   strerror(errno));			\
+	} while (0)
+
+#define TESTS_IN_CHILD 2
+
+static void parent_f(int sock, unsigned long *smap, int child)
+{
+	int status, ret;
+
+	ret = read(sock, &status, sizeof(int));
+	BUG_ON(ret <= 0, "read(sock)");
+
+	*smap = 0x22222BAD;
+	ret = msync(smap, MMAP_SZ, MS_SYNC);
+	BUG_ON(ret, "msync()");
+
+	ret = write(sock, &status, sizeof(int));
+	BUG_ON(ret <= 0, "write(sock)");
+
+	waitpid(child, &status, 0);
+
+	/* The ksft macros don't keep counters between processes */
+	ksft_cnt.ksft_pass = WEXITSTATUS(status);
+	ksft_cnt.ksft_fail = TESTS_IN_CHILD - WEXITSTATUS(status);
+}
+
+static int child_f(int sock, unsigned long *smap, int fd)
+{
+	int ret, buf = 0;
+
+	smap = mmap(0, MMAP_SZ, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_POPULATE, fd, 0);
+	BUG_ON(smap == MAP_FAILED, "mmap()");
+
+	BUG_ON(*smap != 0xdeadbabe, "MAP_PRIVATE | MAP_POPULATE changed file");
+
+	ret = write(sock, &buf, sizeof(int));
+	BUG_ON(ret <= 0, "write(sock)");
+
+	ret = read(sock, &buf, sizeof(int));
+	BUG_ON(ret <= 0, "read(sock)");
+
+	ksft_test_result(*smap != 0x22222BAD, "MAP_POPULATE COW private page\n");
+	ksft_test_result(*smap == 0xdeadbabe, "The mapping state\n");
+
+	/* The ksft macros don't keep counters between processes */
+	return ksft_cnt.ksft_pass;
+}
+
+int main(int argc, char **argv)
+{
+	int sock[2], child, ret;
+	FILE *ftmp;
+	unsigned long *smap;
+
+	ksft_print_header();
+	ksft_set_plan(TESTS_IN_CHILD);
+
+	ftmp = tmpfile();
+	BUG_ON(!ftmp, "tmpfile()");
+
+	ret = ftruncate(fileno(ftmp), MMAP_SZ);
+	if (ret < 0 && errno == ENOENT) {
+		skip_test_dodgy_fs("ftruncate()");
+	}
+	BUG_ON(ret, "ftruncate()");
+
+	smap = mmap(0, MMAP_SZ, PROT_READ | PROT_WRITE,
+			MAP_SHARED, fileno(ftmp), 0);
+	BUG_ON(smap == MAP_FAILED, "mmap()");
+
+	*smap = 0xdeadbabe;
+	/* Probably unnecessary, but let it be. */
+	ret = msync(smap, MMAP_SZ, MS_SYNC);
+	BUG_ON(ret, "msync()");
+
+	ret = socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sock);
+	BUG_ON(ret, "socketpair()");
+
+	child = fork();
+	BUG_ON(child == -1, "fork()");
+
+	if (child) {
+		ret = close(sock[0]);
+		BUG_ON(ret, "close()");
+
+		parent_f(sock[1], smap, child);
+
+		ksft_finished();
+	}
+
+	ret = close(sock[1]);
+	BUG_ON(ret, "close()");
+
+	return child_f(sock[0], smap, fileno(ftmp));
+}
diff --git a/tools/testing/selftests/mm/mdwe_test.c b/tools/testing/selftests/mm/mdwe_test.c
new file mode 100644
index 000000000000..647779653da0
--- /dev/null
+++ b/tools/testing/selftests/mm/mdwe_test.c
@@ -0,0 +1,303 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifdef __aarch64__
+#include <asm/hwcap.h>
+#endif
+
+#include <linux/mman.h>
+#include <linux/prctl.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/auxv.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+#ifndef __aarch64__
+# define PROT_BTI	0
+#endif
+
+TEST(prctl_flags)
+{
+	EXPECT_LT(prctl(PR_SET_MDWE, PR_MDWE_NO_INHERIT, 0L, 0L, 7L), 0);
+	EXPECT_EQ(errno, EINVAL);
+
+	EXPECT_LT(prctl(PR_SET_MDWE, 7L, 0L, 0L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_SET_MDWE, 0L, 7L, 0L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_SET_MDWE, 0L, 0L, 7L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_SET_MDWE, 0L, 0L, 0L, 7L), 0);
+	EXPECT_EQ(errno, EINVAL);
+
+	EXPECT_LT(prctl(PR_GET_MDWE, 7L, 0L, 0L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_GET_MDWE, 0L, 7L, 0L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_GET_MDWE, 0L, 0L, 7L, 0L), 0);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_LT(prctl(PR_GET_MDWE, 0L, 0L, 0L, 7L), 0);
+	EXPECT_EQ(errno, EINVAL);
+}
+
+FIXTURE(consecutive_prctl_flags) {};
+FIXTURE_SETUP(consecutive_prctl_flags) {}
+FIXTURE_TEARDOWN(consecutive_prctl_flags) {}
+
+FIXTURE_VARIANT(consecutive_prctl_flags)
+{
+	unsigned long first_flags;
+	unsigned long second_flags;
+	bool should_work;
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, can_keep_no_flags)
+{
+	.first_flags = 0,
+	.second_flags = 0,
+	.should_work = true,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, can_keep_exec_gain)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN,
+	.second_flags = PR_MDWE_REFUSE_EXEC_GAIN,
+	.should_work = true,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, can_keep_both_flags)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN | PR_MDWE_NO_INHERIT,
+	.second_flags = PR_MDWE_REFUSE_EXEC_GAIN | PR_MDWE_NO_INHERIT,
+	.should_work = true,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, cant_disable_mdwe)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN,
+	.second_flags = 0,
+	.should_work = false,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, cant_disable_mdwe_no_inherit)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN | PR_MDWE_NO_INHERIT,
+	.second_flags = 0,
+	.should_work = false,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, cant_disable_no_inherit)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN | PR_MDWE_NO_INHERIT,
+	.second_flags = PR_MDWE_REFUSE_EXEC_GAIN,
+	.should_work = false,
+};
+
+FIXTURE_VARIANT_ADD(consecutive_prctl_flags, cant_enable_no_inherit)
+{
+	.first_flags = PR_MDWE_REFUSE_EXEC_GAIN,
+	.second_flags = PR_MDWE_REFUSE_EXEC_GAIN | PR_MDWE_NO_INHERIT,
+	.should_work = false,
+};
+
+TEST_F(consecutive_prctl_flags, two_prctls)
+{
+	int ret;
+
+	EXPECT_EQ(prctl(PR_SET_MDWE, variant->first_flags, 0L, 0L, 0L), 0);
+
+	ret = prctl(PR_SET_MDWE, variant->second_flags, 0L, 0L, 0L);
+	if (variant->should_work) {
+		EXPECT_EQ(ret, 0);
+
+		ret = prctl(PR_GET_MDWE, 0L, 0L, 0L, 0L);
+		ASSERT_EQ(ret, variant->second_flags);
+	} else {
+		EXPECT_NE(ret, 0);
+		ASSERT_EQ(errno, EPERM);
+	}
+}
+
+FIXTURE(mdwe)
+{
+	void *p;
+	int flags;
+	size_t size;
+	pid_t pid;
+};
+
+FIXTURE_VARIANT(mdwe)
+{
+	bool enabled;
+	bool forked;
+	bool inherit;
+};
+
+FIXTURE_VARIANT_ADD(mdwe, stock)
+{
+	.enabled = false,
+	.forked = false,
+	.inherit = false,
+};
+
+FIXTURE_VARIANT_ADD(mdwe, enabled)
+{
+	.enabled = true,
+	.forked = false,
+	.inherit = true,
+};
+
+FIXTURE_VARIANT_ADD(mdwe, inherited)
+{
+	.enabled = true,
+	.forked = true,
+	.inherit = true,
+};
+
+FIXTURE_VARIANT_ADD(mdwe, not_inherited)
+{
+	.enabled = true,
+	.forked = true,
+	.inherit = false,
+};
+
+static bool executable_map_should_fail(const FIXTURE_VARIANT(mdwe) *variant)
+{
+	return variant->enabled && (!variant->forked || variant->inherit);
+}
+
+FIXTURE_SETUP(mdwe)
+{
+	unsigned long mdwe_flags;
+	int ret, status;
+
+	self->p = NULL;
+	self->flags = MAP_SHARED | MAP_ANONYMOUS;
+	self->size = getpagesize();
+
+	if (!variant->enabled)
+		return;
+
+	mdwe_flags = PR_MDWE_REFUSE_EXEC_GAIN;
+	if (!variant->inherit)
+		mdwe_flags |= PR_MDWE_NO_INHERIT;
+
+	ret = prctl(PR_SET_MDWE, mdwe_flags, 0L, 0L, 0L);
+	ASSERT_EQ(ret, 0) {
+		TH_LOG("PR_SET_MDWE failed or unsupported");
+	}
+
+	ret = prctl(PR_GET_MDWE, 0L, 0L, 0L, 0L);
+	ASSERT_EQ(ret, mdwe_flags);
+
+	if (variant->forked) {
+		self->pid = fork();
+		ASSERT_GE(self->pid, 0) {
+			TH_LOG("fork failed\n");
+		}
+
+		if (self->pid > 0) {
+			ret = waitpid(self->pid, &status, 0);
+			ASSERT_TRUE(WIFEXITED(status));
+			exit(WEXITSTATUS(status));
+		}
+	}
+}
+
+FIXTURE_TEARDOWN(mdwe)
+{
+	if (self->p && self->p != MAP_FAILED)
+		munmap(self->p, self->size);
+}
+
+TEST_F(mdwe, mmap_READ_EXEC)
+{
+	self->p = mmap(NULL, self->size, PROT_READ | PROT_EXEC, self->flags, 0, 0);
+	EXPECT_NE(self->p, MAP_FAILED);
+}
+
+TEST_F(mdwe, mmap_WRITE_EXEC)
+{
+	self->p = mmap(NULL, self->size, PROT_WRITE | PROT_EXEC, self->flags, 0, 0);
+	if (executable_map_should_fail(variant)) {
+		EXPECT_EQ(self->p, MAP_FAILED);
+	} else {
+		EXPECT_NE(self->p, MAP_FAILED);
+	}
+}
+
+TEST_F(mdwe, mprotect_stay_EXEC)
+{
+	int ret;
+
+	self->p = mmap(NULL, self->size, PROT_READ | PROT_EXEC, self->flags, 0, 0);
+	ASSERT_NE(self->p, MAP_FAILED);
+
+	ret = mprotect(self->p, self->size, PROT_READ | PROT_EXEC);
+	EXPECT_EQ(ret, 0);
+}
+
+TEST_F(mdwe, mprotect_add_EXEC)
+{
+	int ret;
+
+	self->p = mmap(NULL, self->size, PROT_READ, self->flags, 0, 0);
+	ASSERT_NE(self->p, MAP_FAILED);
+
+	ret = mprotect(self->p, self->size, PROT_READ | PROT_EXEC);
+	if (executable_map_should_fail(variant)) {
+		EXPECT_LT(ret, 0);
+	} else {
+		EXPECT_EQ(ret, 0);
+	}
+}
+
+TEST_F(mdwe, mprotect_WRITE_EXEC)
+{
+	int ret;
+
+	self->p = mmap(NULL, self->size, PROT_WRITE, self->flags, 0, 0);
+	ASSERT_NE(self->p, MAP_FAILED);
+
+	ret = mprotect(self->p, self->size, PROT_WRITE | PROT_EXEC);
+	if (executable_map_should_fail(variant)) {
+		EXPECT_LT(ret, 0);
+	} else {
+		EXPECT_EQ(ret, 0);
+	}
+}
+
+TEST_F(mdwe, mmap_FIXED)
+{
+	void *p;
+
+	self->p = mmap(NULL, self->size, PROT_READ, self->flags, 0, 0);
+	ASSERT_NE(self->p, MAP_FAILED);
+
+	/* MAP_FIXED unmaps the existing page before mapping which is allowed */
+	p = mmap(self->p, self->size, PROT_READ | PROT_EXEC,
+		 self->flags | MAP_FIXED, 0, 0);
+	EXPECT_EQ(p, self->p);
+}
+
+TEST_F(mdwe, arm64_BTI)
+{
+	int ret;
+
+#ifdef __aarch64__
+	if (!(getauxval(AT_HWCAP2) & HWCAP2_BTI))
+#endif
+		SKIP(return, "HWCAP2_BTI not supported");
+
+	self->p = mmap(NULL, self->size, PROT_EXEC, self->flags, 0, 0);
+	ASSERT_NE(self->p, MAP_FAILED);
+
+	ret = mprotect(self->p, self->size, PROT_EXEC | PROT_BTI);
+	EXPECT_EQ(ret, 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/memfd_secret.c b/tools/testing/selftests/mm/memfd_secret.c
new file mode 100644
index 000000000000..aac4f795c327
--- /dev/null
+++ b/tools/testing/selftests/mm/memfd_secret.c
@@ -0,0 +1,346 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright IBM Corporation, 2021
+ *
+ * Author: Mike Rapoport <rppt@linux.ibm.com>
+ */
+
+#define _GNU_SOURCE
+#include <sys/uio.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sys/ptrace.h>
+#include <sys/syscall.h>
+#include <sys/resource.h>
+#include <sys/capability.h>
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <fcntl.h>
+
+#include "kselftest.h"
+
+#define fail(fmt, ...) ksft_test_result_fail(fmt, ##__VA_ARGS__)
+#define pass(fmt, ...) ksft_test_result_pass(fmt, ##__VA_ARGS__)
+#define skip(fmt, ...) ksft_test_result_skip(fmt, ##__VA_ARGS__)
+
+#ifdef __NR_memfd_secret
+
+#define PATTERN	0x55
+
+static const int prot = PROT_READ | PROT_WRITE;
+static const int mode = MAP_SHARED;
+
+static unsigned long page_size;
+static unsigned long mlock_limit_cur;
+static unsigned long mlock_limit_max;
+
+static int memfd_secret(unsigned int flags)
+{
+	return syscall(__NR_memfd_secret, flags);
+}
+
+static void test_file_apis(int fd)
+{
+	char buf[64];
+
+	if ((read(fd, buf, sizeof(buf)) >= 0) ||
+	    (write(fd, buf, sizeof(buf)) >= 0) ||
+	    (pread(fd, buf, sizeof(buf), 0) >= 0) ||
+	    (pwrite(fd, buf, sizeof(buf), 0) >= 0))
+		fail("unexpected file IO\n");
+	else
+		pass("file IO is blocked as expected\n");
+}
+
+static void test_mlock_limit(int fd)
+{
+	size_t len;
+	char *mem;
+
+	len = mlock_limit_cur;
+	if (len % page_size != 0)
+		len = (len/page_size) * page_size;
+
+	mem = mmap(NULL, len, prot, mode, fd, 0);
+	if (mem == MAP_FAILED) {
+		fail("unable to mmap secret memory\n");
+		return;
+	}
+	munmap(mem, len);
+
+	len = mlock_limit_max * 2;
+	mem = mmap(NULL, len, prot, mode, fd, 0);
+	if (mem != MAP_FAILED) {
+		fail("unexpected mlock limit violation\n");
+		munmap(mem, len);
+		return;
+	}
+
+	pass("mlock limit is respected\n");
+}
+
+static void test_vmsplice(int fd, const char *desc)
+{
+	ssize_t transferred;
+	struct iovec iov;
+	int pipefd[2];
+	char *mem;
+
+	if (pipe(pipefd)) {
+		fail("pipe failed: %s\n", strerror(errno));
+		return;
+	}
+
+	mem = mmap(NULL, page_size, prot, mode, fd, 0);
+	if (mem == MAP_FAILED) {
+		fail("Unable to mmap secret memory\n");
+		goto close_pipe;
+	}
+
+	/*
+	 * vmsplice() may use GUP-fast, which must also fail. Prefault the
+	 * page table, so GUP-fast could find it.
+	 */
+	memset(mem, PATTERN, page_size);
+
+	iov.iov_base = mem;
+	iov.iov_len = page_size;
+	transferred = vmsplice(pipefd[1], &iov, 1, 0);
+
+	if (transferred < 0 && errno == EFAULT)
+		pass("vmsplice is blocked as expected with %s\n", desc);
+	else
+		fail("vmsplice: unexpected memory access with %s\n", desc);
+
+	munmap(mem, page_size);
+close_pipe:
+	close(pipefd[0]);
+	close(pipefd[1]);
+}
+
+static void try_process_vm_read(int fd, int pipefd[2])
+{
+	struct iovec liov, riov;
+	char buf[64];
+	char *mem;
+
+	if (read(pipefd[0], &mem, sizeof(mem)) < 0) {
+		fail("pipe write: %s\n", strerror(errno));
+		exit(KSFT_FAIL);
+	}
+
+	liov.iov_len = riov.iov_len = sizeof(buf);
+	liov.iov_base = buf;
+	riov.iov_base = mem;
+
+	if (process_vm_readv(getppid(), &liov, 1, &riov, 1, 0) < 0) {
+		if (errno == ENOSYS)
+			exit(KSFT_SKIP);
+		exit(KSFT_PASS);
+	}
+
+	exit(KSFT_FAIL);
+}
+
+static void try_ptrace(int fd, int pipefd[2])
+{
+	pid_t ppid = getppid();
+	int status;
+	char *mem;
+	long ret;
+
+	if (read(pipefd[0], &mem, sizeof(mem)) < 0) {
+		perror("pipe write");
+		exit(KSFT_FAIL);
+	}
+
+	ret = ptrace(PTRACE_ATTACH, ppid, 0, 0);
+	if (ret) {
+		perror("ptrace_attach");
+		exit(KSFT_FAIL);
+	}
+
+	ret = waitpid(ppid, &status, WUNTRACED);
+	if ((ret != ppid) || !(WIFSTOPPED(status))) {
+		fprintf(stderr, "weird waitppid result %ld stat %x\n",
+			ret, status);
+		exit(KSFT_FAIL);
+	}
+
+	if (ptrace(PTRACE_PEEKDATA, ppid, mem, 0))
+		exit(KSFT_PASS);
+
+	exit(KSFT_FAIL);
+}
+
+static void check_child_status(pid_t pid, const char *name)
+{
+	int status;
+
+	waitpid(pid, &status, 0);
+
+	if (WIFEXITED(status) && WEXITSTATUS(status) == KSFT_SKIP) {
+		skip("%s is not supported\n", name);
+		return;
+	}
+
+	if ((WIFEXITED(status) && WEXITSTATUS(status) == KSFT_PASS) ||
+	    WIFSIGNALED(status)) {
+		pass("%s is blocked as expected\n", name);
+		return;
+	}
+
+	fail("%s: unexpected memory access\n", name);
+}
+
+static void test_remote_access(int fd, const char *name,
+			       void (*func)(int fd, int pipefd[2]))
+{
+	int pipefd[2];
+	pid_t pid;
+	char *mem;
+
+	if (pipe(pipefd)) {
+		fail("pipe failed: %s\n", strerror(errno));
+		return;
+	}
+
+	pid = fork();
+	if (pid < 0) {
+		fail("fork failed: %s\n", strerror(errno));
+		return;
+	}
+
+	if (pid == 0) {
+		func(fd, pipefd);
+		return;
+	}
+
+	mem = mmap(NULL, page_size, prot, mode, fd, 0);
+	if (mem == MAP_FAILED) {
+		fail("Unable to mmap secret memory\n");
+		return;
+	}
+
+	memset(mem, PATTERN, page_size);
+
+	if (write(pipefd[1], &mem, sizeof(mem)) < 0) {
+		fail("pipe write: %s\n", strerror(errno));
+		return;
+	}
+
+	check_child_status(pid, name);
+}
+
+static void test_process_vm_read(int fd)
+{
+	test_remote_access(fd, "process_vm_read", try_process_vm_read);
+}
+
+static void test_ptrace(int fd)
+{
+	test_remote_access(fd, "ptrace", try_ptrace);
+}
+
+static int set_cap_limits(rlim_t max)
+{
+	struct rlimit new;
+	cap_t cap = cap_init();
+
+	new.rlim_cur = max;
+	new.rlim_max = max;
+	if (setrlimit(RLIMIT_MEMLOCK, &new)) {
+		perror("setrlimit() returns error");
+		return -1;
+	}
+
+	/* drop capabilities including CAP_IPC_LOCK */
+	if (cap_set_proc(cap)) {
+		perror("cap_set_proc() returns error");
+		return -2;
+	}
+
+	return 0;
+}
+
+static void prepare(void)
+{
+	struct rlimit rlim;
+
+	page_size = sysconf(_SC_PAGE_SIZE);
+	if (!page_size)
+		ksft_exit_fail_msg("Failed to get page size %s\n",
+				   strerror(errno));
+
+	if (getrlimit(RLIMIT_MEMLOCK, &rlim))
+		ksft_exit_fail_msg("Unable to detect mlock limit: %s\n",
+				   strerror(errno));
+
+	mlock_limit_cur = rlim.rlim_cur;
+	mlock_limit_max = rlim.rlim_max;
+
+	printf("page_size: %ld, mlock.soft: %ld, mlock.hard: %ld\n",
+	       page_size, mlock_limit_cur, mlock_limit_max);
+
+	if (page_size > mlock_limit_cur)
+		mlock_limit_cur = page_size;
+	if (page_size > mlock_limit_max)
+		mlock_limit_max = page_size;
+
+	if (set_cap_limits(mlock_limit_max))
+		ksft_exit_fail_msg("Unable to set mlock limit: %s\n",
+				   strerror(errno));
+}
+
+#define NUM_TESTS 6
+
+int main(int argc, char *argv[])
+{
+	int fd;
+
+	prepare();
+
+	ksft_print_header();
+	ksft_set_plan(NUM_TESTS);
+
+	fd = memfd_secret(0);
+	if (fd < 0) {
+		if (errno == ENOSYS)
+			ksft_exit_skip("memfd_secret is not supported\n");
+		else
+			ksft_exit_fail_msg("memfd_secret failed: %s\n",
+					   strerror(errno));
+	}
+	if (ftruncate(fd, page_size))
+		ksft_exit_fail_msg("ftruncate failed: %s\n", strerror(errno));
+
+	test_mlock_limit(fd);
+	test_file_apis(fd);
+	/*
+	 * We have to run the first vmsplice test before any secretmem page was
+	 * allocated for this fd.
+	 */
+	test_vmsplice(fd, "fresh page");
+	test_vmsplice(fd, "existing page");
+	test_process_vm_read(fd);
+	test_ptrace(fd);
+
+	close(fd);
+
+	ksft_finished();
+}
+
+#else /* __NR_memfd_secret */
+
+int main(int argc, char *argv[])
+{
+	printf("skip: skipping memfd_secret test (missing __NR_memfd_secret)\n");
+	return KSFT_SKIP;
+}
+
+#endif /* __NR_memfd_secret */
diff --git a/tools/testing/selftests/mm/merge.c b/tools/testing/selftests/mm/merge.c
new file mode 100644
index 000000000000..363c1033cc7d
--- /dev/null
+++ b/tools/testing/selftests/mm/merge.c
@@ -0,0 +1,1174 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+#include "kselftest_harness.h"
+#include <linux/prctl.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <linux/perf_event.h>
+#include "vm_util.h"
+#include <linux/mman.h>
+
+FIXTURE(merge)
+{
+	unsigned int page_size;
+	char *carveout;
+	struct procmap_fd procmap;
+};
+
+FIXTURE_SETUP(merge)
+{
+	self->page_size = psize();
+	/* Carve out PROT_NONE region to map over. */
+	self->carveout = mmap(NULL, 30 * self->page_size, PROT_NONE,
+			      MAP_ANON | MAP_PRIVATE, -1, 0);
+	ASSERT_NE(self->carveout, MAP_FAILED);
+	/* Setup PROCMAP_QUERY interface. */
+	ASSERT_EQ(open_self_procmap(&self->procmap), 0);
+}
+
+FIXTURE_TEARDOWN(merge)
+{
+	ASSERT_EQ(munmap(self->carveout, 30 * self->page_size), 0);
+	ASSERT_EQ(close_procmap(&self->procmap), 0);
+	/*
+	 * Clear unconditionally, as some tests set this. It is no issue if this
+	 * fails (KSM may be disabled for instance).
+	 */
+	prctl(PR_SET_MEMORY_MERGE, 0, 0, 0, 0);
+}
+
+TEST_F(merge, mprotect_unfaulted_left)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr;
+
+	/*
+	 * Map 10 pages of R/W memory within. MAP_NORESERVE so we don't hit
+	 * merge failure due to lack of VM_ACCOUNT flag by mistake.
+	 *
+	 * |-----------------------|
+	 * |       unfaulted       |
+	 * |-----------------------|
+	 */
+	ptr = mmap(&carveout[page_size], 10 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/*
+	 * Now make the first 5 pages read-only, splitting the VMA:
+	 *
+	 *      RO          RW
+	 * |-----------|-----------|
+	 * | unfaulted | unfaulted |
+	 * |-----------|-----------|
+	 */
+	ASSERT_EQ(mprotect(ptr, 5 * page_size, PROT_READ), 0);
+	/*
+	 * Fault in the first of the last 5 pages so it gets an anon_vma and
+	 * thus the whole VMA becomes 'faulted':
+	 *
+	 *      RO          RW
+	 * |-----------|-----------|
+	 * | unfaulted |  faulted  |
+	 * |-----------|-----------|
+	 */
+	ptr[5 * page_size] = 'x';
+	/*
+	 * Now mprotect() the RW region read-only, we should merge (though for
+	 * ~15 years we did not! :):
+	 *
+	 *             RO
+	 * |-----------------------|
+	 * |        faulted        |
+	 * |-----------------------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[5 * page_size], 5 * page_size, PROT_READ), 0);
+
+	/* Assert that the merge succeeded using PROCMAP_QUERY. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+}
+
+TEST_F(merge, mprotect_unfaulted_right)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr;
+
+	/*
+	 * |-----------------------|
+	 * |       unfaulted       |
+	 * |-----------------------|
+	 */
+	ptr = mmap(&carveout[page_size], 10 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/*
+	 * Now make the last 5 pages read-only, splitting the VMA:
+	 *
+	 *      RW          RO
+	 * |-----------|-----------|
+	 * | unfaulted | unfaulted |
+	 * |-----------|-----------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[5 * page_size], 5 * page_size, PROT_READ), 0);
+	/*
+	 * Fault in the first of the first 5 pages so it gets an anon_vma and
+	 * thus the whole VMA becomes 'faulted':
+	 *
+	 *      RW          RO
+	 * |-----------|-----------|
+	 * |  faulted  | unfaulted |
+	 * |-----------|-----------|
+	 */
+	ptr[0] = 'x';
+	/*
+	 * Now mprotect() the RW region read-only, we should merge:
+	 *
+	 *             RO
+	 * |-----------------------|
+	 * |        faulted        |
+	 * |-----------------------|
+	 */
+	ASSERT_EQ(mprotect(ptr, 5 * page_size, PROT_READ), 0);
+
+	/* Assert that the merge succeeded using PROCMAP_QUERY. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+}
+
+TEST_F(merge, mprotect_unfaulted_both)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr;
+
+	/*
+	 * |-----------------------|
+	 * |       unfaulted       |
+	 * |-----------------------|
+	 */
+	ptr = mmap(&carveout[2 * page_size], 9 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/*
+	 * Now make the first and last 3 pages read-only, splitting the VMA:
+	 *
+	 *      RO          RW          RO
+	 * |-----------|-----------|-----------|
+	 * | unfaulted | unfaulted | unfaulted |
+	 * |-----------|-----------|-----------|
+	 */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ), 0);
+	ASSERT_EQ(mprotect(&ptr[6 * page_size], 3 * page_size, PROT_READ), 0);
+	/*
+	 * Fault in the first of the middle 3 pages so it gets an anon_vma and
+	 * thus the whole VMA becomes 'faulted':
+	 *
+	 *      RO          RW          RO
+	 * |-----------|-----------|-----------|
+	 * | unfaulted |  faulted  | unfaulted |
+	 * |-----------|-----------|-----------|
+	 */
+	ptr[3 * page_size] = 'x';
+	/*
+	 * Now mprotect() the RW region read-only, we should merge:
+	 *
+	 *             RO
+	 * |-----------------------|
+	 * |        faulted        |
+	 * |-----------------------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[3 * page_size], 3 * page_size, PROT_READ), 0);
+
+	/* Assert that the merge succeeded using PROCMAP_QUERY. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 9 * page_size);
+}
+
+TEST_F(merge, mprotect_faulted_left_unfaulted_right)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr;
+
+	/*
+	 * |-----------------------|
+	 * |       unfaulted       |
+	 * |-----------------------|
+	 */
+	ptr = mmap(&carveout[2 * page_size], 9 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/*
+	 * Now make the last 3 pages read-only, splitting the VMA:
+	 *
+	 *             RW               RO
+	 * |-----------------------|-----------|
+	 * |       unfaulted       | unfaulted |
+	 * |-----------------------|-----------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[6 * page_size], 3 * page_size, PROT_READ), 0);
+	/*
+	 * Fault in the first of the first 6 pages so it gets an anon_vma and
+	 * thus the whole VMA becomes 'faulted':
+	 *
+	 *             RW               RO
+	 * |-----------------------|-----------|
+	 * |       unfaulted       | unfaulted |
+	 * |-----------------------|-----------|
+	 */
+	ptr[0] = 'x';
+	/*
+	 * Now make the first 3 pages read-only, splitting the VMA:
+	 *
+	 *      RO          RW          RO
+	 * |-----------|-----------|-----------|
+	 * |  faulted  |  faulted  | unfaulted |
+	 * |-----------|-----------|-----------|
+	 */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ), 0);
+	/*
+	 * Now mprotect() the RW region read-only, we should merge:
+	 *
+	 *             RO
+	 * |-----------------------|
+	 * |        faulted        |
+	 * |-----------------------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[3 * page_size], 3 * page_size, PROT_READ), 0);
+
+	/* Assert that the merge succeeded using PROCMAP_QUERY. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 9 * page_size);
+}
+
+TEST_F(merge, mprotect_unfaulted_left_faulted_right)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr;
+
+	/*
+	 * |-----------------------|
+	 * |       unfaulted       |
+	 * |-----------------------|
+	 */
+	ptr = mmap(&carveout[2 * page_size], 9 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	/*
+	 * Now make the first 3 pages read-only, splitting the VMA:
+	 *
+	 *      RO                RW
+	 * |-----------|-----------------------|
+	 * | unfaulted |       unfaulted       |
+	 * |-----------|-----------------------|
+	 */
+	ASSERT_EQ(mprotect(ptr, 3 * page_size, PROT_READ), 0);
+	/*
+	 * Fault in the first of the last 6 pages so it gets an anon_vma and
+	 * thus the whole VMA becomes 'faulted':
+	 *
+	 *      RO                RW
+	 * |-----------|-----------------------|
+	 * | unfaulted |        faulted        |
+	 * |-----------|-----------------------|
+	 */
+	ptr[3 * page_size] = 'x';
+	/*
+	 * Now make the last 3 pages read-only, splitting the VMA:
+	 *
+	 *      RO          RW          RO
+	 * |-----------|-----------|-----------|
+	 * | unfaulted |  faulted  |  faulted  |
+	 * |-----------|-----------|-----------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[6 * page_size], 3 * page_size, PROT_READ), 0);
+	/*
+	 * Now mprotect() the RW region read-only, we should merge:
+	 *
+	 *             RO
+	 * |-----------------------|
+	 * |        faulted        |
+	 * |-----------------------|
+	 */
+	ASSERT_EQ(mprotect(&ptr[3 * page_size], 3 * page_size, PROT_READ), 0);
+
+	/* Assert that the merge succeeded using PROCMAP_QUERY. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 9 * page_size);
+}
+
+TEST_F(merge, forked_target_vma)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	pid_t pid;
+	char *ptr, *ptr2;
+	int i;
+
+	/*
+	 * |-----------|
+	 * | unfaulted |
+	 * |-----------|
+	 */
+	ptr = mmap(&carveout[page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Fault in process.
+	 *
+	 * |-----------|
+	 * |  faulted  |
+	 * |-----------|
+	 */
+	ptr[0] = 'x';
+
+	pid = fork();
+	ASSERT_NE(pid, -1);
+
+	if (pid != 0) {
+		wait(NULL);
+		return;
+	}
+
+	/* Child process below: */
+
+	/* Reopen for child. */
+	ASSERT_EQ(close_procmap(&self->procmap), 0);
+	ASSERT_EQ(open_self_procmap(&self->procmap), 0);
+
+	/* unCOWing everything does not cause the AVC to go away. */
+	for (i = 0; i < 5 * page_size; i += page_size)
+		ptr[i] = 'x';
+
+	/*
+	 * Map in adjacent VMA in child.
+	 *
+	 *     forked
+	 * |-----------|-----------|
+	 * |  faulted  | unfaulted |
+	 * |-----------|-----------|
+	 *      ptr         ptr2
+	 */
+	ptr2 = mmap(&ptr[5 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/* Make sure not merged. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 5 * page_size);
+}
+
+TEST_F(merge, forked_source_vma)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	pid_t pid;
+	char *ptr, *ptr2;
+	int i;
+
+	/*
+	 * |-----------|------------|
+	 * | unfaulted | <unmapped> |
+	 * |-----------|------------|
+	 */
+	ptr = mmap(&carveout[page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Fault in process.
+	 *
+	 * |-----------|------------|
+	 * |  faulted  | <unmapped> |
+	 * |-----------|------------|
+	 */
+	ptr[0] = 'x';
+
+	pid = fork();
+	ASSERT_NE(pid, -1);
+
+	if (pid != 0) {
+		wait(NULL);
+		return;
+	}
+
+	/* Child process below: */
+
+	/* Reopen for child. */
+	ASSERT_EQ(close_procmap(&self->procmap), 0);
+	ASSERT_EQ(open_self_procmap(&self->procmap), 0);
+
+	/* unCOWing everything does not cause the AVC to go away. */
+	for (i = 0; i < 5 * page_size; i += page_size)
+		ptr[i] = 'x';
+
+	/*
+	 * Map in adjacent VMA in child, ptr2 after ptr, but incompatible.
+	 *
+	 *   forked RW      RWX
+	 * |-----------|-----------|
+	 * |  faulted  | unfaulted |
+	 * |-----------|-----------|
+	 *      ptr        ptr2
+	 */
+	ptr2 = mmap(&carveout[6 * page_size], 5 * page_size, PROT_READ | PROT_WRITE | PROT_EXEC,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED | MAP_NORESERVE, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/* Make sure not merged. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr2));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr2);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr2 + 5 * page_size);
+
+	/*
+	 * Now mprotect forked region to RWX so it becomes the source for the
+	 * merge to unfaulted region:
+	 *
+	 *  forked RWX      RWX
+	 * |-----------|-----------|
+	 * |  faulted  | unfaulted |
+	 * |-----------|-----------|
+	 *      ptr         ptr2
+	 *
+	 * This should NOT result in a merge, as ptr was forked.
+	 */
+	ASSERT_EQ(mprotect(ptr, 5 * page_size, PROT_READ | PROT_WRITE | PROT_EXEC), 0);
+	/* Again, make sure not merged. */
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr2));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr2);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr2 + 5 * page_size);
+}
+
+TEST_F(merge, handle_uprobe_upon_merged_vma)
+{
+	const size_t attr_sz = sizeof(struct perf_event_attr);
+	unsigned int page_size = self->page_size;
+	const char *probe_file = "./foo";
+	char *carveout = self->carveout;
+	struct perf_event_attr attr;
+	unsigned long type;
+	void *ptr1, *ptr2;
+	int fd;
+
+	fd = open(probe_file, O_RDWR|O_CREAT, 0600);
+	ASSERT_GE(fd, 0);
+
+	ASSERT_EQ(ftruncate(fd, page_size), 0);
+	if (read_sysfs("/sys/bus/event_source/devices/uprobe/type", &type) != 0) {
+		SKIP(goto out, "Failed to read uprobe sysfs file, skipping");
+	}
+
+	memset(&attr, 0, attr_sz);
+	attr.size = attr_sz;
+	attr.type = type;
+	attr.config1 = (__u64)(long)probe_file;
+	attr.config2 = 0x0;
+
+	ASSERT_GE(syscall(__NR_perf_event_open, &attr, 0, -1, -1, 0), 0);
+
+	ptr1 = mmap(&carveout[page_size], 10 * page_size, PROT_EXEC,
+		    MAP_PRIVATE | MAP_FIXED, fd, 0);
+	ASSERT_NE(ptr1, MAP_FAILED);
+
+	ptr2 = mremap(ptr1, page_size, 2 * page_size,
+		      MREMAP_MAYMOVE | MREMAP_FIXED, ptr1 + 5 * page_size);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_NE(mremap(ptr2, page_size, page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, ptr1), MAP_FAILED);
+
+out:
+	close(fd);
+	remove(probe_file);
+}
+
+TEST_F(merge, ksm_merge)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2;
+	int err;
+
+	/*
+	 * Map two R/W immediately adjacent to one another, they should
+	 * trivially merge:
+	 *
+	 * |-----------|-----------|
+	 * |    R/W    |    R/W    |
+	 * |-----------|-----------|
+	 *      ptr         ptr2
+	 */
+
+	ptr = mmap(&carveout[page_size], page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[2 * page_size], page_size,
+		    PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 2 * page_size);
+
+	/* Unmap the second half of this merged VMA. */
+	ASSERT_EQ(munmap(ptr2, page_size), 0);
+
+	/* OK, now enable global KSM merge. We clear this on test teardown. */
+	err = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+	if (err == -1) {
+		int errnum = errno;
+
+		/* Only non-failure case... */
+		ASSERT_EQ(errnum, EINVAL);
+		/* ...but indicates we should skip. */
+		SKIP(return, "KSM memory merging not supported, skipping.");
+	}
+
+	/*
+	 * Now map a VMA adjacent to the existing that was just made
+	 * VM_MERGEABLE, this should merge as well.
+	 */
+	ptr2 = mmap(&carveout[2 * page_size], page_size,
+		    PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 2 * page_size);
+
+	/* Now this VMA altogether. */
+	ASSERT_EQ(munmap(ptr, 2 * page_size), 0);
+
+	/* Try the same operation as before, asserting this also merges fine. */
+	ptr = mmap(&carveout[page_size], page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[2 * page_size], page_size,
+		    PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 2 * page_size);
+}
+
+TEST_F(merge, mremap_unfaulted_to_faulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2;
+
+	/*
+	 * Map two distinct areas:
+	 *
+	 * |-----------|  |-----------|
+	 * | unfaulted |  | unfaulted |
+	 * |-----------|  |-----------|
+	 *      ptr            ptr2
+	 */
+	ptr = mmap(&carveout[page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[7 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/* Offset ptr2 further away. */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Fault in ptr:
+	 *                \
+	 * |-----------|  /  |-----------|
+	 * |  faulted  |  \  | unfaulted |
+	 * |-----------|  /  |-----------|
+	 *      ptr       \       ptr2
+	 */
+	ptr[0] = 'x';
+
+	/*
+	 * Now move ptr2 adjacent to ptr:
+	 *
+	 * |-----------|-----------|
+	 * |  faulted  | unfaulted |
+	 * |-----------|-----------|
+	 *      ptr         ptr2
+	 *
+	 * It should merge:
+	 *
+	 * |----------------------|
+	 * |       faulted        |
+	 * |----------------------|
+	 *            ptr
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+}
+
+TEST_F(merge, mremap_unfaulted_behind_faulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2;
+
+	/*
+	 * Map two distinct areas:
+	 *
+	 * |-----------|  |-----------|
+	 * | unfaulted |  | unfaulted |
+	 * |-----------|  |-----------|
+	 *      ptr            ptr2
+	 */
+	ptr = mmap(&carveout[6 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[14 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/* Offset ptr2 further away. */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Fault in ptr:
+	 *                \
+	 * |-----------|  /  |-----------|
+	 * |  faulted  |  \  | unfaulted |
+	 * |-----------|  /  |-----------|
+	 *      ptr       \       ptr2
+	 */
+	ptr[0] = 'x';
+
+	/*
+	 * Now move ptr2 adjacent, but behind, ptr:
+	 *
+	 * |-----------|-----------|
+	 * | unfaulted |  faulted  |
+	 * |-----------|-----------|
+	 *      ptr2        ptr
+	 *
+	 * It should merge:
+	 *
+	 * |----------------------|
+	 * |       faulted        |
+	 * |----------------------|
+	 *            ptr2
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &carveout[page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr2));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr2);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr2 + 10 * page_size);
+}
+
+TEST_F(merge, mremap_unfaulted_between_faulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2, *ptr3;
+
+	/*
+	 * Map three distinct areas:
+	 *
+	 * |-----------|  |-----------|  |-----------|
+	 * | unfaulted |  | unfaulted |  | unfaulted |
+	 * |-----------|  |-----------|  |-----------|
+	 *      ptr            ptr2           ptr3
+	 */
+	ptr = mmap(&carveout[page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[7 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	ptr3 = mmap(&carveout[14 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/* Offset ptr3 further away. */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr3 + page_size * 2000);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/* Offset ptr2 further away. */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Fault in ptr, ptr3:
+	 *                \                 \
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 * |  faulted  |  \  | unfaulted |  \  |  faulted  |
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 *      ptr       \       ptr2      \       ptr3
+	 */
+	ptr[0] = 'x';
+	ptr3[0] = 'x';
+
+	/*
+	 * Move ptr3 back into place, leaving a place for ptr2:
+	 *                                        \
+	 * |-----------|           |-----------|  /  |-----------|
+	 * |  faulted  |           |  faulted  |  \  | unfaulted |
+	 * |-----------|           |-----------|  /  |-----------|
+	 *      ptr                     ptr3      \       ptr2
+	 */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[10 * page_size]);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/*
+	 * Finally, move ptr2 into place:
+	 *
+	 * |-----------|-----------|-----------|
+	 * |  faulted  | unfaulted |  faulted  |
+	 * |-----------|-----------|-----------|
+	 *      ptr        ptr2         ptr3
+	 *
+	 * It should merge, but only ptr, ptr2:
+	 *
+	 * |-----------------------|-----------|
+	 * |        faulted        | unfaulted |
+	 * |-----------------------|-----------|
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr3));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr3);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr3 + 5 * page_size);
+}
+
+TEST_F(merge, mremap_unfaulted_between_faulted_unfaulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2, *ptr3;
+
+	/*
+	 * Map three distinct areas:
+	 *
+	 * |-----------|  |-----------|  |-----------|
+	 * | unfaulted |  | unfaulted |  | unfaulted |
+	 * |-----------|  |-----------|  |-----------|
+	 *      ptr            ptr2           ptr3
+	 */
+	ptr = mmap(&carveout[page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+	ptr2 = mmap(&carveout[7 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+	ptr3 = mmap(&carveout[14 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/* Offset ptr3 further away. */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr3 + page_size * 2000);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+
+	/* Offset ptr2 further away. */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Fault in ptr:
+	 *                \                 \
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 * |  faulted  |  \  | unfaulted |  \  | unfaulted |
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 *      ptr       \       ptr2      \       ptr3
+	 */
+	ptr[0] = 'x';
+
+	/*
+	 * Move ptr3 back into place, leaving a place for ptr2:
+	 *                                        \
+	 * |-----------|           |-----------|  /  |-----------|
+	 * |  faulted  |           | unfaulted |  \  | unfaulted |
+	 * |-----------|           |-----------|  /  |-----------|
+	 *      ptr                     ptr3      \       ptr2
+	 */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[10 * page_size]);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/*
+	 * Finally, move ptr2 into place:
+	 *
+	 * |-----------|-----------|-----------|
+	 * |  faulted  | unfaulted | unfaulted |
+	 * |-----------|-----------|-----------|
+	 *      ptr        ptr2         ptr3
+	 *
+	 * It should merge:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 15 * page_size);
+}
+
+TEST_F(merge, mremap_unfaulted_between_correctly_placed_faulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2;
+
+	/*
+	 * Map one larger area:
+	 *
+	 * |-----------------------------------|
+	 * |            unfaulted              |
+	 * |-----------------------------------|
+	 */
+	ptr = mmap(&carveout[page_size], 15 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Fault in ptr:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 */
+	ptr[0] = 'x';
+
+	/*
+	 * Unmap middle:
+	 *
+	 * |-----------|           |-----------|
+	 * |  faulted  |           |  faulted  |
+	 * |-----------|           |-----------|
+	 *
+	 * Now the faulted areas are compatible with each other (anon_vma the
+	 * same, vma->vm_pgoff equal to virtual page offset).
+	 */
+	ASSERT_EQ(munmap(&ptr[5 * page_size], 5 * page_size), 0);
+
+	/*
+	 * Map a new area, ptr2:
+	 *                                        \
+	 * |-----------|           |-----------|  /  |-----------|
+	 * |  faulted  |           |  faulted  |  \  | unfaulted |
+	 * |-----------|           |-----------|  /  |-----------|
+	 *      ptr                               \       ptr2
+	 */
+	ptr2 = mmap(&carveout[20 * page_size], 5 * page_size, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Finally, move ptr2 into place:
+	 *
+	 * |-----------|-----------|-----------|
+	 * |  faulted  | unfaulted |  faulted  |
+	 * |-----------|-----------|-----------|
+	 *      ptr        ptr2         ptr3
+	 *
+	 * It should merge:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 15 * page_size);
+}
+
+TEST_F(merge, mremap_correct_placed_faulted)
+{
+	unsigned int page_size = self->page_size;
+	char *carveout = self->carveout;
+	struct procmap_fd *procmap = &self->procmap;
+	char *ptr, *ptr2, *ptr3;
+
+	/*
+	 * Map one larger area:
+	 *
+	 * |-----------------------------------|
+	 * |            unfaulted              |
+	 * |-----------------------------------|
+	 */
+	ptr = mmap(&carveout[page_size], 15 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Fault in ptr:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 */
+	ptr[0] = 'x';
+
+	/*
+	 * Offset the final and middle 5 pages further away:
+	 *                \                 \
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 * |  faulted  |  \  |  faulted  |  \  |  faulted  |
+	 * |-----------|  /  |-----------|  /  |-----------|
+	 *      ptr       \       ptr2      \       ptr3
+	 */
+	ptr3 = &ptr[10 * page_size];
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr3 + page_size * 2000);
+	ASSERT_NE(ptr3, MAP_FAILED);
+	ptr2 = &ptr[5 * page_size];
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Move ptr2 into its correct place:
+	 *                            \
+	 * |-----------|-----------|  /  |-----------|
+	 * |  faulted  |  faulted  |  \  |  faulted  |
+	 * |-----------|-----------|  /  |-----------|
+	 *      ptr         ptr2      \       ptr3
+	 *
+	 * It should merge:
+	 *                            \
+	 * |-----------------------|  /  |-----------|
+	 * |        faulted        |  \  |  faulted  |
+	 * |-----------------------|  /  |-----------|
+	 *            ptr             \       ptr3
+	 */
+
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+
+	/*
+	 * Now move ptr out of place:
+	 *                            \                 \
+	 *             |-----------|  /  |-----------|  /  |-----------|
+	 *             |  faulted  |  \  |  faulted  |  \  |  faulted  |
+	 *             |-----------|  /  |-----------|  /  |-----------|
+	 *                  ptr2      \       ptr       \       ptr3
+	 */
+	ptr = sys_mremap(ptr, 5 * page_size, 5 * page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, ptr + page_size * 1000);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Now move ptr back into place:
+	 *                            \
+	 * |-----------|-----------|  /  |-----------|
+	 * |  faulted  |  faulted  |  \  |  faulted  |
+	 * |-----------|-----------|  /  |-----------|
+	 *      ptr         ptr2      \       ptr3
+	 *
+	 * It should merge:
+	 *                            \
+	 * |-----------------------|  /  |-----------|
+	 * |        faulted        |  \  |  faulted  |
+	 * |-----------------------|  /  |-----------|
+	 *            ptr             \       ptr3
+	 */
+	ptr = sys_mremap(ptr, 5 * page_size, 5 * page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, &carveout[page_size]);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 10 * page_size);
+
+	/*
+	 * Now move ptr out of place again:
+	 *                            \                 \
+	 *             |-----------|  /  |-----------|  /  |-----------|
+	 *             |  faulted  |  \  |  faulted  |  \  |  faulted  |
+	 *             |-----------|  /  |-----------|  /  |-----------|
+	 *                  ptr2      \       ptr       \       ptr3
+	 */
+	ptr = sys_mremap(ptr, 5 * page_size, 5 * page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, ptr + page_size * 1000);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	/*
+	 * Now move ptr3 back into place:
+	 *                                        \
+	 *             |-----------|-----------|  /  |-----------|
+	 *             |  faulted  |  faulted  |  \  |  faulted  |
+	 *             |-----------|-----------|  /  |-----------|
+	 *                  ptr2        ptr3      \       ptr
+	 *
+	 * It should merge:
+	 *                                        \
+	 *             |-----------------------|  /  |-----------|
+	 *             |        faulted        |  \  |  faulted  |
+	 *             |-----------------------|  /  |-----------|
+	 *                        ptr2            \       ptr
+	 */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr2[5 * page_size]);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr2));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr2);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr2 + 10 * page_size);
+
+	/*
+	 * Now move ptr back into place:
+	 *
+	 * |-----------|-----------------------|
+	 * |  faulted  |        faulted        |
+	 * |-----------|-----------------------|
+	 *      ptr               ptr2
+	 *
+	 * It should merge:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 *                  ptr
+	 */
+	ptr = sys_mremap(ptr, 5 * page_size, 5 * page_size,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, &carveout[page_size]);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 15 * page_size);
+
+	/*
+	 * Now move ptr2 out of the way:
+	 *                                        \
+	 * |-----------|           |-----------|  /  |-----------|
+	 * |  faulted  |           |  faulted  |  \  |  faulted  |
+	 * |-----------|           |-----------|  /  |-----------|
+	 *      ptr                     ptr3      \       ptr2
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr2 + page_size * 1000);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	/*
+	 * Now move it back:
+	 *
+	 * |-----------|-----------|-----------|
+	 * |  faulted  |  faulted  |  faulted  |
+	 * |-----------|-----------|-----------|
+	 *      ptr         ptr2        ptr3
+	 *
+	 * It should merge:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 *                  ptr
+	 */
+	ptr2 = sys_mremap(ptr2, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[5 * page_size]);
+	ASSERT_NE(ptr2, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 15 * page_size);
+
+	/*
+	 * Move ptr3 out of place:
+	 *                                        \
+	 * |-----------------------|              /  |-----------|
+	 * |        faulted        |              \  |  faulted  |
+	 * |-----------------------|              /  |-----------|
+	 *            ptr                         \       ptr3
+	 */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, ptr3 + page_size * 1000);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	/*
+	 * Now move it back:
+	 *
+	 * |-----------|-----------|-----------|
+	 * |  faulted  |  faulted  |  faulted  |
+	 * |-----------|-----------|-----------|
+	 *      ptr         ptr2        ptr3
+	 *
+	 * It should merge:
+	 *
+	 * |-----------------------------------|
+	 * |              faulted              |
+	 * |-----------------------------------|
+	 *                  ptr
+	 */
+	ptr3 = sys_mremap(ptr3, 5 * page_size, 5 * page_size,
+			  MREMAP_MAYMOVE | MREMAP_FIXED, &ptr[10 * page_size]);
+	ASSERT_NE(ptr3, MAP_FAILED);
+
+	ASSERT_TRUE(find_vma_procmap(procmap, ptr));
+	ASSERT_EQ(procmap->query.vma_start, (unsigned long)ptr);
+	ASSERT_EQ(procmap->query.vma_end, (unsigned long)ptr + 15 * page_size);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/migration.c b/tools/testing/selftests/mm/migration.c
new file mode 100644
index 000000000000..ee24b88c2b24
--- /dev/null
+++ b/tools/testing/selftests/mm/migration.c
@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The main purpose of the tests here is to exercise the migration entry code
+ * paths in the kernel.
+ */
+
+#include "kselftest_harness.h"
+#include "thp_settings.h"
+
+#include <strings.h>
+#include <pthread.h>
+#include <numa.h>
+#include <numaif.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <time.h>
+#include "vm_util.h"
+
+#define TWOMEG		(2<<20)
+#define RUNTIME		(20)
+#define MAX_RETRIES	100
+#define ALIGN(x, a)	(((x) + (a - 1)) & (~((a) - 1)))
+
+FIXTURE(migration)
+{
+	pthread_t *threads;
+	pid_t *pids;
+	int nthreads;
+	int n1;
+	int n2;
+};
+
+FIXTURE_SETUP(migration)
+{
+	int n;
+
+	ASSERT_EQ(numa_available(), 0);
+	self->nthreads = numa_num_task_cpus() - 1;
+	self->n1 = -1;
+	self->n2 = -1;
+
+	for (n = 0; n < numa_max_possible_node(); n++)
+		if (numa_bitmask_isbitset(numa_all_nodes_ptr, n)) {
+			if (self->n1 == -1) {
+				self->n1 = n;
+			} else {
+				self->n2 = n;
+				break;
+			}
+		}
+
+	self->threads = malloc(self->nthreads * sizeof(*self->threads));
+	ASSERT_NE(self->threads, NULL);
+	self->pids = malloc(self->nthreads * sizeof(*self->pids));
+	ASSERT_NE(self->pids, NULL);
+};
+
+FIXTURE_TEARDOWN(migration)
+{
+	free(self->threads);
+	free(self->pids);
+}
+
+int migrate(uint64_t *ptr, int n1, int n2)
+{
+	int ret, tmp;
+	int status = 0;
+	struct timespec ts1, ts2;
+	int failures = 0;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &ts1))
+		return -1;
+
+	while (1) {
+		if (clock_gettime(CLOCK_MONOTONIC, &ts2))
+			return -1;
+
+		if (ts2.tv_sec - ts1.tv_sec >= RUNTIME)
+			return 0;
+
+		ret = move_pages(0, 1, (void **) &ptr, &n2, &status,
+				MPOL_MF_MOVE_ALL);
+		if (ret) {
+			if (ret > 0) {
+				/* Migration is best effort; try again */
+				if (++failures < MAX_RETRIES)
+					continue;
+				printf("Didn't migrate %d pages\n", ret);
+			}
+			else
+				perror("Couldn't migrate pages");
+			return -2;
+		}
+		failures = 0;
+		tmp = n2;
+		n2 = n1;
+		n1 = tmp;
+	}
+
+	return 0;
+}
+
+void *access_mem(void *ptr)
+{
+	while (1) {
+		pthread_testcancel();
+		/* Force a read from the memory pointed to by ptr. This ensures
+		 * the memory access actually happens and prevents the compiler
+		 * from optimizing away this entire loop.
+		 */
+		FORCE_READ(*(uint64_t *)ptr);
+	}
+
+	return NULL;
+}
+
+/*
+ * Basic migration entry testing. One thread will move pages back and forth
+ * between nodes whilst other threads try and access them triggering the
+ * migration entry wait paths in the kernel.
+ */
+TEST_F_TIMEOUT(migration, private_anon, 2*RUNTIME)
+{
+	uint64_t *ptr;
+	int i;
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++)
+		if (pthread_create(&self->threads[i], NULL, access_mem, ptr))
+			perror("Couldn't create thread");
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(pthread_cancel(self->threads[i]), 0);
+}
+
+/*
+ * Same as the previous test but with shared memory.
+ */
+TEST_F_TIMEOUT(migration, shared_anon, 2*RUNTIME)
+{
+	pid_t pid;
+	uint64_t *ptr;
+	int i;
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++) {
+		pid = fork();
+		if (!pid) {
+			prctl(PR_SET_PDEATHSIG, SIGHUP);
+			/* Parent may have died before prctl so check now. */
+			if (getppid() == 1)
+				kill(getpid(), SIGHUP);
+			access_mem(ptr);
+		} else {
+			self->pids[i] = pid;
+		}
+	}
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(kill(self->pids[i], SIGTERM), 0);
+}
+
+/*
+ * Tests the pmd migration entry paths.
+ */
+TEST_F_TIMEOUT(migration, private_anon_thp, 2*RUNTIME)
+{
+	uint64_t *ptr;
+	int i;
+
+	if (!thp_is_enabled())
+		SKIP(return, "Transparent Hugepages not available");
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, 2*TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	ptr = (uint64_t *) ALIGN((uintptr_t) ptr, TWOMEG);
+	ASSERT_EQ(madvise(ptr, TWOMEG, MADV_HUGEPAGE), 0);
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++)
+		if (pthread_create(&self->threads[i], NULL, access_mem, ptr))
+			perror("Couldn't create thread");
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(pthread_cancel(self->threads[i]), 0);
+}
+
+/*
+ * migration test with shared anon THP page
+ */
+
+TEST_F_TIMEOUT(migration, shared_anon_thp, 2*RUNTIME)
+{
+	pid_t pid;
+	uint64_t *ptr;
+	int i;
+
+	if (!thp_is_enabled())
+		SKIP(return, "Transparent Hugepages not available");
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, 2 * TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	ptr = (uint64_t *) ALIGN((uintptr_t) ptr, TWOMEG);
+	ASSERT_EQ(madvise(ptr, TWOMEG, MADV_HUGEPAGE), 0);
+
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++) {
+		pid = fork();
+		if (!pid) {
+			prctl(PR_SET_PDEATHSIG, SIGHUP);
+			/* Parent may have died before prctl so check now. */
+			if (getppid() == 1)
+				kill(getpid(), SIGHUP);
+			access_mem(ptr);
+		} else {
+			self->pids[i] = pid;
+		}
+	}
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(kill(self->pids[i], SIGTERM), 0);
+}
+
+/*
+ * migration test with private anon hugetlb page
+ */
+TEST_F_TIMEOUT(migration, private_anon_htlb, 2*RUNTIME)
+{
+	uint64_t *ptr;
+	int i;
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++)
+		if (pthread_create(&self->threads[i], NULL, access_mem, ptr))
+			perror("Couldn't create thread");
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(pthread_cancel(self->threads[i]), 0);
+}
+
+/*
+ * migration test with shared anon hugetlb page
+ */
+TEST_F_TIMEOUT(migration, shared_anon_htlb, 2*RUNTIME)
+{
+	pid_t pid;
+	uint64_t *ptr;
+	int i;
+
+	if (self->nthreads < 2 || self->n1 < 0 || self->n2 < 0)
+		SKIP(return, "Not enough threads or NUMA nodes available");
+
+	ptr = mmap(NULL, TWOMEG, PROT_READ | PROT_WRITE,
+		MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+	ASSERT_NE(ptr, MAP_FAILED);
+
+	memset(ptr, 0xde, TWOMEG);
+	for (i = 0; i < self->nthreads - 1; i++) {
+		pid = fork();
+		if (!pid) {
+			prctl(PR_SET_PDEATHSIG, SIGHUP);
+			/* Parent may have died before prctl so check now. */
+			if (getppid() == 1)
+				kill(getpid(), SIGHUP);
+			access_mem(ptr);
+		} else {
+			self->pids[i] = pid;
+		}
+	}
+
+	ASSERT_EQ(migrate(ptr, self->n1, self->n2), 0);
+	for (i = 0; i < self->nthreads - 1; i++)
+		ASSERT_EQ(kill(self->pids[i], SIGTERM), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/mkdirty.c b/tools/testing/selftests/mm/mkdirty.c
new file mode 100644
index 000000000000..68dd447a5454
--- /dev/null
+++ b/tools/testing/selftests/mm/mkdirty.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Test handling of code that might set PTE/PMD dirty in read-only VMAs.
+ * Setting a PTE/PMD dirty must not accidentally set the PTE/PMD writable.
+ *
+ * Copyright 2023, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#include <fcntl.h>
+#include <signal.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <sys/mman.h>
+#include <setjmp.h>
+#include <sys/syscall.h>
+#include <sys/ioctl.h>
+#include <linux/userfaultfd.h>
+#include <linux/mempolicy.h>
+
+#include "kselftest.h"
+#include "vm_util.h"
+
+static size_t pagesize;
+static size_t thpsize;
+static int mem_fd;
+static int pagemap_fd;
+static sigjmp_buf env;
+
+static void signal_handler(int sig)
+{
+	if (sig == SIGSEGV)
+		siglongjmp(env, 1);
+	siglongjmp(env, 2);
+}
+
+static void do_test_write_sigsegv(char *mem)
+{
+	char orig = *mem;
+	int ret;
+
+	if (signal(SIGSEGV, signal_handler) == SIG_ERR) {
+		ksft_test_result_fail("signal() failed\n");
+		return;
+	}
+
+	ret = sigsetjmp(env, 1);
+	if (!ret)
+		*mem = orig + 1;
+
+	if (signal(SIGSEGV, SIG_DFL) == SIG_ERR)
+		ksft_test_result_fail("signal() failed\n");
+
+	ksft_test_result(ret == 1 && *mem == orig,
+			 "SIGSEGV generated, page not modified\n");
+}
+
+static char *mmap_thp_range(int prot, char **_mmap_mem, size_t *_mmap_size)
+{
+	const size_t mmap_size = 2 * thpsize;
+	char *mem, *mmap_mem;
+
+	mmap_mem = mmap(NULL, mmap_size, prot, MAP_PRIVATE|MAP_ANON,
+			-1, 0);
+	if (mmap_mem == MAP_FAILED) {
+		ksft_test_result_fail("mmap() failed\n");
+		return MAP_FAILED;
+	}
+	mem = (char *)(((uintptr_t)mmap_mem + thpsize) & ~(thpsize - 1));
+
+	if (madvise(mem, thpsize, MADV_HUGEPAGE)) {
+		ksft_test_result_skip("MADV_HUGEPAGE failed\n");
+		munmap(mmap_mem, mmap_size);
+		return MAP_FAILED;
+	}
+
+	*_mmap_mem = mmap_mem;
+	*_mmap_size = mmap_size;
+	return mem;
+}
+
+static void test_ptrace_write(void)
+{
+	char data = 1;
+	char *mem;
+	int ret;
+
+	ksft_print_msg("[INFO] PTRACE write access\n");
+
+	mem = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE|MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED) {
+		ksft_test_result_fail("mmap() failed\n");
+		return;
+	}
+
+	/* Fault in the shared zeropage. */
+	if (*mem != 0) {
+		ksft_test_result_fail("Memory not zero\n");
+		goto munmap;
+	}
+
+	/*
+	 * Unshare the page (populating a fresh anon page that might be set
+	 * dirty in the PTE) in the read-only VMA using ptrace (FOLL_FORCE).
+	 */
+	lseek(mem_fd, (uintptr_t) mem, SEEK_SET);
+	ret = write(mem_fd, &data, 1);
+	if (ret != 1 || *mem != data) {
+		ksft_test_result_fail("write() failed\n");
+		goto munmap;
+	}
+
+	do_test_write_sigsegv(mem);
+munmap:
+	munmap(mem, pagesize);
+}
+
+static void test_ptrace_write_thp(void)
+{
+	char *mem, *mmap_mem;
+	size_t mmap_size;
+	char data = 1;
+	int ret;
+
+	ksft_print_msg("[INFO] PTRACE write access to THP\n");
+
+	mem = mmap_thp_range(PROT_READ, &mmap_mem, &mmap_size);
+	if (mem == MAP_FAILED)
+		return;
+
+	/*
+	 * Write to the first subpage in the read-only VMA using
+	 * ptrace(FOLL_FORCE), eventually placing a fresh THP that is marked
+	 * dirty in the PMD.
+	 */
+	lseek(mem_fd, (uintptr_t) mem, SEEK_SET);
+	ret = write(mem_fd, &data, 1);
+	if (ret != 1 || *mem != data) {
+		ksft_test_result_fail("write() failed\n");
+		goto munmap;
+	}
+
+	/* MM populated a THP if we got the last subpage populated as well. */
+	if (!pagemap_is_populated(pagemap_fd, mem + thpsize - pagesize)) {
+		ksft_test_result_skip("Did not get a THP populated\n");
+		goto munmap;
+	}
+
+	do_test_write_sigsegv(mem);
+munmap:
+	munmap(mmap_mem, mmap_size);
+}
+
+static void test_page_migration(void)
+{
+	char *mem;
+
+	ksft_print_msg("[INFO] Page migration\n");
+
+	mem = mmap(NULL, pagesize, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON,
+		   -1, 0);
+	if (mem == MAP_FAILED) {
+		ksft_test_result_fail("mmap() failed\n");
+		return;
+	}
+
+	/* Populate a fresh page and dirty it. */
+	memset(mem, 1, pagesize);
+	if (mprotect(mem, pagesize, PROT_READ)) {
+		ksft_test_result_fail("mprotect() failed\n");
+		goto munmap;
+	}
+
+	/* Trigger page migration. Might not be available or fail. */
+	if (syscall(__NR_mbind, mem, pagesize, MPOL_LOCAL, NULL, 0x7fful,
+		    MPOL_MF_MOVE)) {
+		ksft_test_result_skip("mbind() failed\n");
+		goto munmap;
+	}
+
+	do_test_write_sigsegv(mem);
+munmap:
+	munmap(mem, pagesize);
+}
+
+static void test_page_migration_thp(void)
+{
+	char *mem, *mmap_mem;
+	size_t mmap_size;
+
+	ksft_print_msg("[INFO] Page migration of THP\n");
+
+	mem = mmap_thp_range(PROT_READ|PROT_WRITE, &mmap_mem, &mmap_size);
+	if (mem == MAP_FAILED)
+		return;
+
+	/*
+	 * Write to the first page, which might populate a fresh anon THP
+	 * and dirty it.
+	 */
+	memset(mem, 1, pagesize);
+	if (mprotect(mem, thpsize, PROT_READ)) {
+		ksft_test_result_fail("mprotect() failed\n");
+		goto munmap;
+	}
+
+	/* MM populated a THP if we got the last subpage populated as well. */
+	if (!pagemap_is_populated(pagemap_fd, mem + thpsize - pagesize)) {
+		ksft_test_result_skip("Did not get a THP populated\n");
+		goto munmap;
+	}
+
+	/* Trigger page migration. Might not be available or fail. */
+	if (syscall(__NR_mbind, mem, thpsize, MPOL_LOCAL, NULL, 0x7fful,
+		    MPOL_MF_MOVE)) {
+		ksft_test_result_skip("mbind() failed\n");
+		goto munmap;
+	}
+
+	do_test_write_sigsegv(mem);
+munmap:
+	munmap(mmap_mem, mmap_size);
+}
+
+static void test_pte_mapped_thp(void)
+{
+	char *mem, *mmap_mem;
+	size_t mmap_size;
+
+	ksft_print_msg("[INFO] PTE-mapping a THP\n");
+
+	mem = mmap_thp_range(PROT_READ|PROT_WRITE, &mmap_mem, &mmap_size);
+	if (mem == MAP_FAILED)
+		return;
+
+	/*
+	 * Write to the first page, which might populate a fresh anon THP
+	 * and dirty it.
+	 */
+	memset(mem, 1, pagesize);
+	if (mprotect(mem, thpsize, PROT_READ)) {
+		ksft_test_result_fail("mprotect() failed\n");
+		goto munmap;
+	}
+
+	/* MM populated a THP if we got the last subpage populated as well. */
+	if (!pagemap_is_populated(pagemap_fd, mem + thpsize - pagesize)) {
+		ksft_test_result_skip("Did not get a THP populated\n");
+		goto munmap;
+	}
+
+	/* Trigger PTE-mapping the THP by mprotect'ing the last subpage. */
+	if (mprotect(mem + thpsize - pagesize, pagesize,
+		     PROT_READ|PROT_WRITE)) {
+		ksft_test_result_fail("mprotect() failed\n");
+		goto munmap;
+	}
+
+	do_test_write_sigsegv(mem);
+munmap:
+	munmap(mmap_mem, mmap_size);
+}
+
+#ifdef __NR_userfaultfd
+static void test_uffdio_copy(void)
+{
+	struct uffdio_register uffdio_register;
+	struct uffdio_copy uffdio_copy;
+	struct uffdio_api uffdio_api;
+	char *dst, *src;
+	int uffd;
+
+	ksft_print_msg("[INFO] UFFDIO_COPY\n");
+
+	src = malloc(pagesize);
+	memset(src, 1, pagesize);
+	dst = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE|MAP_ANON, -1, 0);
+	if (dst == MAP_FAILED) {
+		ksft_test_result_fail("mmap() failed\n");
+		free(src);
+		return;
+	}
+
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	if (uffd < 0) {
+		ksft_test_result_skip("__NR_userfaultfd failed\n");
+		goto munmap;
+	}
+
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) < 0) {
+		ksft_test_result_fail("UFFDIO_API failed\n");
+		goto close_uffd;
+	}
+
+	uffdio_register.range.start = (unsigned long) dst;
+	uffdio_register.range.len = pagesize;
+	uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING;
+	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) {
+		ksft_test_result_fail("UFFDIO_REGISTER failed\n");
+		goto close_uffd;
+	}
+
+	/* Place a page in a read-only VMA, which might set the PTE dirty. */
+	uffdio_copy.dst = (unsigned long) dst;
+	uffdio_copy.src = (unsigned long) src;
+	uffdio_copy.len = pagesize;
+	uffdio_copy.mode = 0;
+	if (ioctl(uffd, UFFDIO_COPY, &uffdio_copy)) {
+		ksft_test_result_fail("UFFDIO_COPY failed\n");
+		goto close_uffd;
+	}
+
+	do_test_write_sigsegv(dst);
+close_uffd:
+	close(uffd);
+munmap:
+	munmap(dst, pagesize);
+	free(src);
+}
+#endif /* __NR_userfaultfd */
+
+int main(void)
+{
+	int err, tests = 2;
+
+	pagesize = getpagesize();
+	thpsize = read_pmd_pagesize();
+	if (thpsize) {
+		ksft_print_msg("[INFO] detected THP size: %zu KiB\n",
+			       thpsize / 1024);
+		tests += 3;
+	}
+#ifdef __NR_userfaultfd
+	tests += 1;
+#endif /* __NR_userfaultfd */
+
+	ksft_print_header();
+	ksft_set_plan(tests);
+
+	mem_fd = open("/proc/self/mem", O_RDWR);
+	if (mem_fd < 0)
+		ksft_exit_fail_msg("opening /proc/self/mem failed\n");
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_fail_msg("opening /proc/self/pagemap failed\n");
+
+	/*
+	 * On some ptrace(FOLL_FORCE) write access via /proc/self/mem in
+	 * read-only VMAs, the kernel may set the PTE/PMD dirty.
+	 */
+	test_ptrace_write();
+	if (thpsize)
+		test_ptrace_write_thp();
+	/*
+	 * On page migration, the kernel may set the PTE/PMD dirty when
+	 * remapping the page.
+	 */
+	test_page_migration();
+	if (thpsize)
+		test_page_migration_thp();
+	/* PTE-mapping a THP might propagate the dirty PMD bit to the PTEs. */
+	if (thpsize)
+		test_pte_mapped_thp();
+	/* Placing a fresh page via userfaultfd may set the PTE dirty. */
+#ifdef __NR_userfaultfd
+	test_uffdio_copy();
+#endif /* __NR_userfaultfd */
+
+	err = ksft_get_fail_cnt();
+	if (err)
+		ksft_exit_fail_msg("%d out of %d tests failed\n",
+				   err, ksft_test_num());
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/mlock-random-test.c b/tools/testing/selftests/mm/mlock-random-test.c
new file mode 100644
index 000000000000..9d349c151360
--- /dev/null
+++ b/tools/testing/selftests/mm/mlock-random-test.c
@@ -0,0 +1,267 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * It tests the mlock/mlock2() when they are invoked
+ * on randomly memory region.
+ */
+#include <unistd.h>
+#include <sys/resource.h>
+#include <sys/capability.h>
+#include <sys/mman.h>
+#include <linux/mman.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <time.h>
+#include "kselftest.h"
+#include "mlock2.h"
+
+#define CHUNK_UNIT (128 * 1024)
+#define MLOCK_RLIMIT_SIZE (CHUNK_UNIT * 2)
+#define MLOCK_WITHIN_LIMIT_SIZE CHUNK_UNIT
+#define MLOCK_OUTOF_LIMIT_SIZE (CHUNK_UNIT * 3)
+
+#define TEST_LOOP 100
+#define PAGE_ALIGN(size, ps) (((size) + ((ps) - 1)) & ~((ps) - 1))
+
+int set_cap_limits(rlim_t max)
+{
+	struct rlimit new;
+	cap_t cap = cap_init();
+
+	new.rlim_cur = max;
+	new.rlim_max = max;
+	if (setrlimit(RLIMIT_MEMLOCK, &new)) {
+		ksft_perror("setrlimit() returns error\n");
+		return -1;
+	}
+
+	/* drop capabilities including CAP_IPC_LOCK */
+	if (cap_set_proc(cap)) {
+		ksft_perror("cap_set_proc() returns error\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+int get_proc_locked_vm_size(void)
+{
+	FILE *f;
+	int ret = -1;
+	char line[1024] = {0};
+	unsigned long lock_size = 0;
+
+	f = fopen("/proc/self/status", "r");
+	if (!f)
+		ksft_exit_fail_msg("fopen: %s\n", strerror(errno));
+
+	while (fgets(line, 1024, f)) {
+		if (strstr(line, "VmLck")) {
+			ret = sscanf(line, "VmLck:\t%8lu kB", &lock_size);
+			if (ret <= 0) {
+				fclose(f);
+				ksft_exit_fail_msg("sscanf() on VmLck error: %s: %d\n",
+						   line, ret);
+			}
+			fclose(f);
+			return (int)(lock_size << 10);
+		}
+	}
+
+	fclose(f);
+	ksft_exit_fail_msg("cannot parse VmLck in /proc/self/status: %s\n", strerror(errno));
+	return -1;
+}
+
+/*
+ * Get the MMUPageSize of the memory region including input
+ * address from proc file.
+ *
+ * return value: on error case, 0 will be returned.
+ * Otherwise the page size(in bytes) is returned.
+ */
+int get_proc_page_size(unsigned long addr)
+{
+	FILE *smaps;
+	char *line;
+	unsigned long mmupage_size = 0;
+	size_t size;
+
+	smaps = seek_to_smaps_entry(addr);
+	if (!smaps)
+		ksft_exit_fail_msg("Unable to parse /proc/self/smaps\n");
+
+	while (getline(&line, &size, smaps) > 0) {
+		if (!strstr(line, "MMUPageSize")) {
+			free(line);
+			line = NULL;
+			size = 0;
+			continue;
+		}
+
+		/* found the MMUPageSize of this section */
+		if (sscanf(line, "MMUPageSize:    %8lu kB", &mmupage_size) < 1)
+			ksft_exit_fail_msg("Unable to parse smaps entry for Size:%s\n",
+					   line);
+
+	}
+	free(line);
+	if (smaps)
+		fclose(smaps);
+	return mmupage_size << 10;
+}
+
+/*
+ * Test mlock/mlock2() on provided memory chunk.
+ * It expects the mlock/mlock2() to be successful (within rlimit)
+ *
+ * With allocated memory chunk [p, p + alloc_size), this
+ * test will choose start/len randomly to perform mlock/mlock2
+ * [start, start +  len] memory range. The range is within range
+ * of the allocated chunk.
+ *
+ * The memory region size alloc_size is within the rlimit.
+ * So we always expect a success of mlock/mlock2.
+ *
+ * VmLck is assumed to be 0 before this test.
+ *
+ *    return value: 0 - success
+ *    else: failure
+ */
+static void test_mlock_within_limit(char *p, int alloc_size)
+{
+	int i;
+	int ret = 0;
+	int locked_vm_size = 0;
+	struct rlimit cur;
+	int page_size = 0;
+
+	getrlimit(RLIMIT_MEMLOCK, &cur);
+	if (cur.rlim_cur < alloc_size)
+		ksft_exit_fail_msg("alloc_size[%d] < %u rlimit,lead to mlock failure\n",
+				   alloc_size, (unsigned int)cur.rlim_cur);
+
+	srand(time(NULL));
+	for (i = 0; i < TEST_LOOP; i++) {
+		/*
+		 * - choose mlock/mlock2 randomly
+		 * - choose lock_size randomly but lock_size < alloc_size
+		 * - choose start_offset randomly but p+start_offset+lock_size
+		 *   < p+alloc_size
+		 */
+		int is_mlock = !!(rand() % 2);
+		int lock_size = rand() % alloc_size;
+		int start_offset = rand() % (alloc_size - lock_size);
+
+		if (is_mlock)
+			ret = mlock(p + start_offset, lock_size);
+		else
+			ret = mlock2_(p + start_offset, lock_size,
+				       MLOCK_ONFAULT);
+
+		if (ret)
+			ksft_exit_fail_msg("%s() failure (%s) at |%p(%d)| mlock:|%p(%d)|\n",
+					   is_mlock ? "mlock" : "mlock2",
+					   strerror(errno), p, alloc_size,
+					   p + start_offset, lock_size);
+	}
+
+	/*
+	 * Check VmLck left by the tests.
+	 */
+	locked_vm_size = get_proc_locked_vm_size();
+	page_size = get_proc_page_size((unsigned long)p);
+
+	if (locked_vm_size > PAGE_ALIGN(alloc_size, page_size) + page_size)
+		ksft_exit_fail_msg("%s left VmLck:%d on %d chunk\n",
+				   __func__, locked_vm_size, alloc_size);
+
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+
+/*
+ * We expect the mlock/mlock2() to be fail (outof limitation)
+ *
+ * With allocated memory chunk [p, p + alloc_size), this
+ * test will randomly choose start/len and perform mlock/mlock2
+ * on [start, start+len] range.
+ *
+ * The memory region size alloc_size is above the rlimit.
+ * And the len to be locked is higher than rlimit.
+ * So we always expect a failure of mlock/mlock2.
+ * No locked page number should be increased as a side effect.
+ *
+ *    return value: 0 - success
+ *    else: failure
+ */
+static void test_mlock_outof_limit(char *p, int alloc_size)
+{
+	int i;
+	int ret = 0;
+	int locked_vm_size = 0, old_locked_vm_size = 0;
+	struct rlimit cur;
+
+	getrlimit(RLIMIT_MEMLOCK, &cur);
+	if (cur.rlim_cur >= alloc_size)
+		ksft_exit_fail_msg("alloc_size[%d] >%u rlimit, violates test condition\n",
+				   alloc_size, (unsigned int)cur.rlim_cur);
+
+	old_locked_vm_size = get_proc_locked_vm_size();
+	srand(time(NULL));
+	for (i = 0; i < TEST_LOOP; i++) {
+		int is_mlock = !!(rand() % 2);
+		int lock_size = (rand() % (alloc_size - cur.rlim_cur))
+			+ cur.rlim_cur;
+		int start_offset = rand() % (alloc_size - lock_size);
+
+		if (is_mlock)
+			ret = mlock(p + start_offset, lock_size);
+		else
+			ret = mlock2_(p + start_offset, lock_size,
+					MLOCK_ONFAULT);
+		if (ret == 0)
+			ksft_exit_fail_msg("%s() succeeds? on %p(%d) mlock%p(%d)\n",
+					   is_mlock ? "mlock" : "mlock2",
+					   p, alloc_size, p + start_offset, lock_size);
+	}
+
+	locked_vm_size = get_proc_locked_vm_size();
+	if (locked_vm_size != old_locked_vm_size)
+		ksft_exit_fail_msg("tests leads to new mlocked page: old[%d], new[%d]\n",
+				   old_locked_vm_size,
+				   locked_vm_size);
+
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+int main(int argc, char **argv)
+{
+	char *p = NULL;
+
+	ksft_print_header();
+
+	if (set_cap_limits(MLOCK_RLIMIT_SIZE))
+		ksft_finished();
+
+	ksft_set_plan(2);
+
+	p = malloc(MLOCK_WITHIN_LIMIT_SIZE);
+	if (p == NULL)
+		ksft_exit_fail_msg("malloc() failure: %s\n", strerror(errno));
+
+	test_mlock_within_limit(p, MLOCK_WITHIN_LIMIT_SIZE);
+	munlock(p, MLOCK_WITHIN_LIMIT_SIZE);
+	free(p);
+
+	p = malloc(MLOCK_OUTOF_LIMIT_SIZE);
+	if (p == NULL)
+		ksft_exit_fail_msg("malloc() failure: %s\n", strerror(errno));
+
+	test_mlock_outof_limit(p, MLOCK_OUTOF_LIMIT_SIZE);
+	munlock(p, MLOCK_OUTOF_LIMIT_SIZE);
+	free(p);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/mlock2-tests.c b/tools/testing/selftests/mm/mlock2-tests.c
new file mode 100644
index 000000000000..b474f2b20def
--- /dev/null
+++ b/tools/testing/selftests/mm/mlock2-tests.c
@@ -0,0 +1,456 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sys/mman.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <stdbool.h>
+#include "kselftest.h"
+#include "mlock2.h"
+
+struct vm_boundaries {
+	unsigned long start;
+	unsigned long end;
+};
+
+static int get_vm_area(unsigned long addr, struct vm_boundaries *area)
+{
+	FILE *file;
+	int ret = 1;
+	char line[1024] = {0};
+	unsigned long start;
+	unsigned long end;
+
+	if (!area)
+		return ret;
+
+	file = fopen("/proc/self/maps", "r");
+	if (!file) {
+		perror("fopen");
+		return ret;
+	}
+
+	memset(area, 0, sizeof(struct vm_boundaries));
+
+	while(fgets(line, 1024, file)) {
+		if (sscanf(line, "%lx-%lx", &start, &end) != 2) {
+			ksft_print_msg("cannot parse /proc/self/maps\n");
+			goto out;
+		}
+
+		if (start <= addr && end > addr) {
+			area->start = start;
+			area->end = end;
+			ret = 0;
+			goto out;
+		}
+	}
+out:
+	fclose(file);
+	return ret;
+}
+
+#define VMFLAGS "VmFlags:"
+
+static bool is_vmflag_set(unsigned long addr, const char *vmflag)
+{
+	char *line = NULL;
+	char *flags;
+	size_t size = 0;
+	bool ret = false;
+	FILE *smaps;
+
+	smaps = seek_to_smaps_entry(addr);
+	if (!smaps) {
+		ksft_print_msg("Unable to parse /proc/self/smaps\n");
+		goto out;
+	}
+
+	while (getline(&line, &size, smaps) > 0) {
+		if (!strstr(line, VMFLAGS)) {
+			free(line);
+			line = NULL;
+			size = 0;
+			continue;
+		}
+
+		flags = line + strlen(VMFLAGS);
+		ret = (strstr(flags, vmflag) != NULL);
+		goto out;
+	}
+
+out:
+	free(line);
+	fclose(smaps);
+	return ret;
+}
+
+#define SIZE "Size:"
+#define RSS  "Rss:"
+#define LOCKED "lo"
+
+static unsigned long get_value_for_name(unsigned long addr, const char *name)
+{
+	char *line = NULL;
+	size_t size = 0;
+	char *value_ptr;
+	FILE *smaps = NULL;
+	unsigned long value = -1UL;
+
+	smaps = seek_to_smaps_entry(addr);
+	if (!smaps) {
+		ksft_print_msg("Unable to parse /proc/self/smaps\n");
+		goto out;
+	}
+
+	while (getline(&line, &size, smaps) > 0) {
+		if (!strstr(line, name)) {
+			free(line);
+			line = NULL;
+			size = 0;
+			continue;
+		}
+
+		value_ptr = line + strlen(name);
+		if (sscanf(value_ptr, "%lu kB", &value) < 1) {
+			ksft_print_msg("Unable to parse smaps entry for Size\n");
+			goto out;
+		}
+		break;
+	}
+
+out:
+	if (smaps)
+		fclose(smaps);
+	free(line);
+	return value;
+}
+
+static bool is_vma_lock_on_fault(unsigned long addr)
+{
+	bool locked;
+	unsigned long vma_size, vma_rss;
+
+	locked = is_vmflag_set(addr, LOCKED);
+	if (!locked)
+		return false;
+
+	vma_size = get_value_for_name(addr, SIZE);
+	vma_rss = get_value_for_name(addr, RSS);
+
+	/* only one page is faulted in */
+	return (vma_rss < vma_size);
+}
+
+#define PRESENT_BIT     0x8000000000000000ULL
+#define PFN_MASK        0x007FFFFFFFFFFFFFULL
+#define UNEVICTABLE_BIT (1UL << 18)
+
+static int lock_check(unsigned long addr)
+{
+	bool locked;
+	unsigned long vma_size, vma_rss;
+
+	locked = is_vmflag_set(addr, LOCKED);
+	if (!locked)
+		return false;
+
+	vma_size = get_value_for_name(addr, SIZE);
+	vma_rss = get_value_for_name(addr, RSS);
+
+	return (vma_rss == vma_size);
+}
+
+static int unlock_lock_check(char *map)
+{
+	if (is_vmflag_set((unsigned long)map, LOCKED)) {
+		ksft_print_msg("VMA flag %s is present on page 1 after unlock\n", LOCKED);
+		return 1;
+	}
+
+	return 0;
+}
+
+static void test_mlock_lock(void)
+{
+	char *map;
+	unsigned long page_size = getpagesize();
+
+	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	if (mlock2_(map, 2 * page_size, 0)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("mlock2(0): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(lock_check((unsigned long)map), "%s: Locked\n", __func__);
+
+	/* Now unlock and recheck attributes */
+	if (munlock(map, 2 * page_size)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("munlock(): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!unlock_lock_check(map), "%s: Unlocked\n", __func__);
+	munmap(map, 2 * page_size);
+}
+
+static int onfault_check(char *map)
+{
+	*map = 'a';
+	if (!is_vma_lock_on_fault((unsigned long)map)) {
+		ksft_print_msg("VMA is not marked for lock on fault\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+static int unlock_onfault_check(char *map)
+{
+	unsigned long page_size = getpagesize();
+
+	if (is_vma_lock_on_fault((unsigned long)map) ||
+	    is_vma_lock_on_fault((unsigned long)map + page_size)) {
+		ksft_print_msg("VMA is still lock on fault after unlock\n");
+		return 1;
+	}
+
+	return 0;
+}
+
+static void test_mlock_onfault(void)
+{
+	char *map;
+	unsigned long page_size = getpagesize();
+
+	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("mlock2(MLOCK_ONFAULT): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!onfault_check(map), "%s: VMA marked for lock on fault\n", __func__);
+
+	/* Now unlock and recheck attributes */
+	if (munlock(map, 2 * page_size)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("munlock(): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!unlock_onfault_check(map), "VMA open lock after fault\n");
+	munmap(map, 2 * page_size);
+}
+
+static void test_lock_onfault_of_present(void)
+{
+	char *map;
+	unsigned long page_size = getpagesize();
+
+	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	*map = 'a';
+
+	if (mlock2_(map, 2 * page_size, MLOCK_ONFAULT)) {
+		munmap(map, 2 * page_size);
+		ksft_test_result_fail("mlock2(MLOCK_ONFAULT) error: %s", strerror(errno));
+	}
+
+	ksft_test_result(is_vma_lock_on_fault((unsigned long)map) ||
+			 is_vma_lock_on_fault((unsigned long)map + page_size),
+			 "VMA with present pages is not marked lock on fault\n");
+	munmap(map, 2 * page_size);
+}
+
+static void test_munlockall0(void)
+{
+	char *map;
+	unsigned long page_size = getpagesize();
+
+	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s\n", strerror(errno));
+
+	if (mlockall(MCL_CURRENT)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("mlockall(MCL_CURRENT): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(lock_check((unsigned long)map), "%s: Locked memory area\n", __func__);
+
+	if (munlockall()) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("munlockall(): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!unlock_lock_check(map), "%s: No locked memory\n", __func__);
+	munmap(map, 2 * page_size);
+}
+
+static void test_munlockall1(void)
+{
+	char *map;
+	unsigned long page_size = getpagesize();
+
+	map = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	if (mlockall(MCL_CURRENT | MCL_ONFAULT)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("mlockall(MCL_CURRENT | MCL_ONFAULT): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!onfault_check(map), "%s: VMA marked for lock on fault\n", __func__);
+
+	if (munlockall()) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("munlockall(): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!unlock_onfault_check(map), "%s: Unlocked\n", __func__);
+
+	if (mlockall(MCL_CURRENT | MCL_FUTURE)) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("mlockall(MCL_CURRENT | MCL_FUTURE): %s\n", strerror(errno));
+	}
+
+	ksft_test_result(lock_check((unsigned long)map), "%s: Locked\n", __func__);
+
+	if (munlockall()) {
+		munmap(map, 2 * page_size);
+		ksft_exit_fail_msg("munlockall() %s\n", strerror(errno));
+	}
+
+	ksft_test_result(!unlock_lock_check(map), "%s: No locked memory\n", __func__);
+	munmap(map, 2 * page_size);
+}
+
+static void test_vma_management(bool call_mlock)
+{
+	void *map;
+	unsigned long page_size = getpagesize();
+	struct vm_boundaries page1;
+	struct vm_boundaries page2;
+	struct vm_boundaries page3;
+
+	map = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	if (call_mlock && mlock2_(map, 3 * page_size, MLOCK_ONFAULT)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("mlock error: %s", strerror(errno));
+	}
+
+	if (get_vm_area((unsigned long)map, &page1) ||
+	    get_vm_area((unsigned long)map + page_size, &page2) ||
+	    get_vm_area((unsigned long)map + page_size * 2, &page3)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
+	}
+
+	/*
+	 * Before we unlock a portion, we need to that all three pages are in
+	 * the same VMA.  If they are not we abort this test (Note that this is
+	 * not a failure)
+	 */
+	if (page1.start != page2.start || page2.start != page3.start) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("VMAs are not merged to start, aborting test");
+	}
+
+	if (munlock(map + page_size, page_size)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("munlock(): %s", strerror(errno));
+	}
+
+	if (get_vm_area((unsigned long)map, &page1) ||
+	    get_vm_area((unsigned long)map + page_size, &page2) ||
+	    get_vm_area((unsigned long)map + page_size * 2, &page3)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
+	}
+
+	/* All three VMAs should be different */
+	if (page1.start == page2.start || page2.start == page3.start) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("failed to split VMA for munlock");
+	}
+
+	/* Now unlock the first and third page and check the VMAs again */
+	if (munlock(map, page_size * 3)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("munlock(): %s", strerror(errno));
+	}
+
+	if (get_vm_area((unsigned long)map, &page1) ||
+	    get_vm_area((unsigned long)map + page_size, &page2) ||
+	    get_vm_area((unsigned long)map + page_size * 2, &page3)) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("couldn't find mapping in /proc/self/maps");
+	}
+
+	/* Now all three VMAs should be the same */
+	if (page1.start != page2.start || page2.start != page3.start) {
+		munmap(map, 3 * page_size);
+		ksft_test_result_fail("failed to merge VMAs after munlock");
+	}
+
+	ksft_test_result_pass("%s call_mlock %d\n", __func__, call_mlock);
+	munmap(map, 3 * page_size);
+}
+
+static void test_mlockall(void)
+{
+	if (mlockall(MCL_CURRENT | MCL_ONFAULT | MCL_FUTURE))
+		ksft_exit_fail_msg("mlockall failed: %s\n", strerror(errno));
+
+	test_vma_management(false);
+	munlockall();
+}
+
+int main(int argc, char **argv)
+{
+	int ret, size = 3 * getpagesize();
+	void *map;
+
+	ksft_print_header();
+
+	map = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap error: %s", strerror(errno));
+
+	ret = mlock2_(map, size, MLOCK_ONFAULT);
+	if (ret && errno == ENOSYS)
+		ksft_finished();
+
+	munmap(map, size);
+
+	ksft_set_plan(13);
+
+	test_mlock_lock();
+	test_mlock_onfault();
+	test_munlockall0();
+	test_munlockall1();
+	test_lock_onfault_of_present();
+	test_vma_management(true);
+	test_mlockall();
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/mlock2.h b/tools/testing/selftests/mm/mlock2.h
new file mode 100644
index 000000000000..81e77fa41901
--- /dev/null
+++ b/tools/testing/selftests/mm/mlock2.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <syscall.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+static int mlock2_(void *start, size_t len, int flags)
+{
+	int ret = syscall(__NR_mlock2, start, len, flags);
+
+	if (ret) {
+		errno = ret;
+		return -1;
+	}
+	return 0;
+}
+
+static FILE *seek_to_smaps_entry(unsigned long addr)
+{
+	FILE *file;
+	char *line = NULL;
+	size_t size = 0;
+	unsigned long start, end;
+	char perms[5];
+	unsigned long offset;
+	char dev[32];
+	unsigned long inode;
+	char path[BUFSIZ];
+
+	file = fopen("/proc/self/smaps", "r");
+	if (!file)
+		ksft_exit_fail_msg("fopen smaps: %s\n", strerror(errno));
+
+	while (getline(&line, &size, file) > 0) {
+		if (sscanf(line, "%lx-%lx %s %lx %s %lu %s\n",
+			   &start, &end, perms, &offset, dev, &inode, path) < 6)
+			goto next;
+
+		if (start <= addr && addr < end)
+			goto out;
+
+next:
+		free(line);
+		line = NULL;
+		size = 0;
+	}
+
+	fclose(file);
+	file = NULL;
+
+out:
+	free(line);
+	return file;
+}
diff --git a/tools/testing/selftests/mm/mrelease_test.c b/tools/testing/selftests/mm/mrelease_test.c
new file mode 100644
index 000000000000..64e8d00ae944
--- /dev/null
+++ b/tools/testing/selftests/mm/mrelease_test.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2022 Google LLC
+ */
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <asm-generic/unistd.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+#define MB(x) (x << 20)
+#define MAX_SIZE_MB 1024
+
+static int alloc_noexit(unsigned long nr_pages, int pipefd)
+{
+	int ppid = getppid();
+	int timeout = 10; /* 10sec timeout to get killed */
+	unsigned long i;
+	char *buf;
+
+	buf = (char *)mmap(NULL, nr_pages * psize(), PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANON, 0, 0);
+	if (buf == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed, halting the test: %s\n", strerror(errno));
+
+	for (i = 0; i < nr_pages; i++)
+		*((unsigned long *)(buf + (i * psize()))) = i;
+
+	/* Signal the parent that the child is ready */
+	if (write(pipefd, "", 1) < 0)
+		ksft_exit_fail_msg("write: %s\n", strerror(errno));
+
+	/* Wait to be killed (when reparenting happens) */
+	while (getppid() == ppid && timeout > 0) {
+		sleep(1);
+		timeout--;
+	}
+
+	munmap(buf, nr_pages * psize());
+
+	return (timeout > 0) ? KSFT_PASS : KSFT_FAIL;
+}
+
+/* The process_mrelease calls in this test are expected to fail */
+static void run_negative_tests(int pidfd)
+{
+	/* Test invalid flags. Expect to fail with EINVAL error code. */
+	if (!syscall(__NR_process_mrelease, pidfd, (unsigned int)-1) ||
+			errno != EINVAL) {
+		ksft_exit_fail_msg("process_mrelease with wrong flags: %s\n", strerror(errno));
+	}
+	/*
+	 * Test reaping while process is alive with no pending SIGKILL.
+	 * Expect to fail with EINVAL error code.
+	 */
+	if (!syscall(__NR_process_mrelease, pidfd, 0) || errno != EINVAL)
+		ksft_exit_fail_msg("process_mrelease on a live process: %s\n", strerror(errno));
+}
+
+static int child_main(int pipefd[], size_t size)
+{
+	int res;
+
+	/* Allocate and fault-in memory and wait to be killed */
+	close(pipefd[0]);
+	res = alloc_noexit(MB(size) / psize(), pipefd[1]);
+	close(pipefd[1]);
+	return res;
+}
+
+int main(void)
+{
+	int pipefd[2], pidfd;
+	bool success, retry;
+	size_t size;
+	pid_t pid;
+	char byte;
+	int res;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	/* Test a wrong pidfd */
+	if (!syscall(__NR_process_mrelease, -1, 0) || errno != EBADF) {
+		if (errno == ENOSYS) {
+			ksft_test_result_skip("process_mrelease not implemented\n");
+			ksft_finished();
+		} else {
+			ksft_exit_fail_msg("process_mrelease with wrong pidfd: %s",
+					   strerror(errno));
+		}
+	}
+
+	/* Start the test with 1MB child memory allocation */
+	size = 1;
+retry:
+	/*
+	 * Pipe for the child to signal when it's done allocating
+	 * memory
+	 */
+	if (pipe(pipefd))
+		ksft_exit_fail_msg("pipe: %s\n", strerror(errno));
+
+	pid = fork();
+	if (pid < 0) {
+		close(pipefd[0]);
+		close(pipefd[1]);
+		ksft_exit_fail_msg("fork: %s\n", strerror(errno));
+	}
+
+	if (pid == 0) {
+		/* Child main routine */
+		res = child_main(pipefd, size);
+		exit(res);
+	}
+
+	/*
+	 * Parent main routine:
+	 * Wait for the child to finish allocations, then kill and reap
+	 */
+	close(pipefd[1]);
+	/* Block until the child is ready */
+	res = read(pipefd[0], &byte, 1);
+	close(pipefd[0]);
+	if (res < 0) {
+		if (!kill(pid, SIGKILL))
+			waitpid(pid, NULL, 0);
+		ksft_exit_fail_msg("read: %s\n", strerror(errno));
+	}
+
+	pidfd = syscall(__NR_pidfd_open, pid, 0);
+	if (pidfd < 0) {
+		if (!kill(pid, SIGKILL))
+			waitpid(pid, NULL, 0);
+		ksft_exit_fail_msg("pidfd_open: %s\n", strerror(errno));
+	}
+
+	/* Run negative tests which require a live child */
+	run_negative_tests(pidfd);
+
+	if (kill(pid, SIGKILL))
+		ksft_exit_fail_msg("kill: %s\n", strerror(errno));
+
+	success = (syscall(__NR_process_mrelease, pidfd, 0) == 0);
+	if (!success) {
+		/*
+		 * If we failed to reap because the child exited too soon,
+		 * before we could call process_mrelease. Double child's memory
+		 * which causes it to spend more time on cleanup and increases
+		 * our chances of reaping its memory before it exits.
+		 * Retry until we succeed or reach MAX_SIZE_MB.
+		 */
+		if (errno == ESRCH) {
+			retry = (size <= MAX_SIZE_MB);
+		} else {
+			waitpid(pid, NULL, 0);
+			ksft_exit_fail_msg("process_mrelease: %s\n", strerror(errno));
+		}
+	}
+
+	/* Cleanup to prevent zombies */
+	if (waitpid(pid, NULL, 0) < 0)
+		ksft_exit_fail_msg("waitpid: %s\n", strerror(errno));
+
+	close(pidfd);
+
+	if (!success) {
+		if (retry) {
+			size *= 2;
+			goto retry;
+		}
+		ksft_exit_fail_msg("All process_mrelease attempts failed!\n");
+	}
+
+	ksft_test_result_pass("Success reaping a child with %zuMB of memory allocations\n",
+			      size);
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/mremap_dontunmap.c b/tools/testing/selftests/mm/mremap_dontunmap.c
new file mode 100644
index 000000000000..a4f75d836733
--- /dev/null
+++ b/tools/testing/selftests/mm/mremap_dontunmap.c
@@ -0,0 +1,369 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Tests for mremap w/ MREMAP_DONTUNMAP.
+ *
+ * Copyright 2020, Brian Geffon <bgeffon@google.com>
+ */
+#define _GNU_SOURCE
+#include <sys/mman.h>
+#include <linux/mman.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+unsigned long page_size;
+char *page_buffer;
+
+static void dump_maps(void)
+{
+	char cmd[32];
+
+	snprintf(cmd, sizeof(cmd), "cat /proc/%d/maps", getpid());
+	system(cmd);
+}
+
+#define BUG_ON(condition, description)						\
+	do {									\
+		if (condition) {						\
+			dump_maps();						\
+			ksft_exit_fail_msg("[FAIL]\t%s:%d\t%s:%s\n",		\
+					   __func__, __LINE__, (description),	\
+					   strerror(errno));			\
+		}								\
+	} while (0)
+
+// Try a simple operation for to "test" for kernel support this prevents
+// reporting tests as failed when it's run on an older kernel.
+static int kernel_support_for_mremap_dontunmap()
+{
+	int ret = 0;
+	unsigned long num_pages = 1;
+	void *source_mapping = mmap(NULL, num_pages * page_size, PROT_NONE,
+				    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+
+	// This simple remap should only fail if MREMAP_DONTUNMAP isn't
+	// supported.
+	void *dest_mapping =
+	    mremap(source_mapping, num_pages * page_size, num_pages * page_size,
+		   MREMAP_DONTUNMAP | MREMAP_MAYMOVE, 0);
+	if (dest_mapping == MAP_FAILED) {
+		ret = errno;
+	} else {
+		BUG_ON(munmap(dest_mapping, num_pages * page_size) == -1,
+		       "unable to unmap destination mapping");
+	}
+
+	BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+	       "unable to unmap source mapping");
+	return ret;
+}
+
+// This helper will just validate that an entire mapping contains the expected
+// byte.
+static int check_region_contains_byte(void *addr, unsigned long size, char byte)
+{
+	BUG_ON(size & (page_size - 1),
+	       "check_region_contains_byte expects page multiples");
+	BUG_ON((unsigned long)addr & (page_size - 1),
+	       "check_region_contains_byte expects page alignment");
+
+	memset(page_buffer, byte, page_size);
+
+	unsigned long num_pages = size / page_size;
+	unsigned long i;
+
+	// Compare each page checking that it contains our expected byte.
+	for (i = 0; i < num_pages; ++i) {
+		int ret =
+		    memcmp(addr + (i * page_size), page_buffer, page_size);
+		if (ret) {
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+// this test validates that MREMAP_DONTUNMAP moves the pagetables while leaving
+// the source mapping mapped.
+static void mremap_dontunmap_simple()
+{
+	unsigned long num_pages = 5;
+
+	void *source_mapping =
+	    mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+
+	memset(source_mapping, 'a', num_pages * page_size);
+
+	// Try to just move the whole mapping anywhere (not fixed).
+	void *dest_mapping =
+	    mremap(source_mapping, num_pages * page_size, num_pages * page_size,
+		   MREMAP_DONTUNMAP | MREMAP_MAYMOVE, NULL);
+	BUG_ON(dest_mapping == MAP_FAILED, "mremap");
+
+	// Validate that the pages have been moved, we know they were moved if
+	// the dest_mapping contains a's.
+	BUG_ON(check_region_contains_byte
+	       (dest_mapping, num_pages * page_size, 'a') != 0,
+	       "pages did not migrate");
+	BUG_ON(check_region_contains_byte
+	       (source_mapping, num_pages * page_size, 0) != 0,
+	       "source should have no ptes");
+
+	BUG_ON(munmap(dest_mapping, num_pages * page_size) == -1,
+	       "unable to unmap destination mapping");
+	BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+	       "unable to unmap source mapping");
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+// This test validates that MREMAP_DONTUNMAP on a shared mapping works as expected.
+static void mremap_dontunmap_simple_shmem()
+{
+	unsigned long num_pages = 5;
+
+	int mem_fd = memfd_create("memfd", MFD_CLOEXEC);
+	BUG_ON(mem_fd < 0, "memfd_create");
+
+	BUG_ON(ftruncate(mem_fd, num_pages * page_size) < 0,
+			"ftruncate");
+
+	void *source_mapping =
+	    mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE,
+		 MAP_FILE | MAP_SHARED, mem_fd, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+
+	BUG_ON(close(mem_fd) < 0, "close");
+
+	memset(source_mapping, 'a', num_pages * page_size);
+
+	// Try to just move the whole mapping anywhere (not fixed).
+	void *dest_mapping =
+	    mremap(source_mapping, num_pages * page_size, num_pages * page_size,
+		   MREMAP_DONTUNMAP | MREMAP_MAYMOVE, NULL);
+	if (dest_mapping == MAP_FAILED && errno == EINVAL) {
+		// Old kernel which doesn't support MREMAP_DONTUNMAP on shmem.
+		BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+			"unable to unmap source mapping");
+		return;
+	}
+
+	BUG_ON(dest_mapping == MAP_FAILED, "mremap");
+
+	// Validate that the pages have been moved, we know they were moved if
+	// the dest_mapping contains a's.
+	BUG_ON(check_region_contains_byte
+	       (dest_mapping, num_pages * page_size, 'a') != 0,
+	       "pages did not migrate");
+
+	// Because the region is backed by shmem, we will actually see the same
+	// memory at the source location still.
+	BUG_ON(check_region_contains_byte
+	       (source_mapping, num_pages * page_size, 'a') != 0,
+	       "source should have no ptes");
+
+	BUG_ON(munmap(dest_mapping, num_pages * page_size) == -1,
+	       "unable to unmap destination mapping");
+	BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+	       "unable to unmap source mapping");
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+// This test validates MREMAP_DONTUNMAP will move page tables to a specific
+// destination using MREMAP_FIXED, also while validating that the source
+// remains intact.
+static void mremap_dontunmap_simple_fixed()
+{
+	unsigned long num_pages = 5;
+
+	// Since we want to guarantee that we can remap to a point, we will
+	// create a mapping up front.
+	void *dest_mapping =
+	    mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(dest_mapping == MAP_FAILED, "mmap");
+	memset(dest_mapping, 'X', num_pages * page_size);
+
+	void *source_mapping =
+	    mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+	memset(source_mapping, 'a', num_pages * page_size);
+
+	void *remapped_mapping =
+	    mremap(source_mapping, num_pages * page_size, num_pages * page_size,
+		   MREMAP_FIXED | MREMAP_DONTUNMAP | MREMAP_MAYMOVE,
+		   dest_mapping);
+	BUG_ON(remapped_mapping == MAP_FAILED, "mremap");
+	BUG_ON(remapped_mapping != dest_mapping,
+	       "mremap should have placed the remapped mapping at dest_mapping");
+
+	// The dest mapping will have been unmap by mremap so we expect the Xs
+	// to be gone and replaced with a's.
+	BUG_ON(check_region_contains_byte
+	       (dest_mapping, num_pages * page_size, 'a') != 0,
+	       "pages did not migrate");
+
+	// And the source mapping will have had its ptes dropped.
+	BUG_ON(check_region_contains_byte
+	       (source_mapping, num_pages * page_size, 0) != 0,
+	       "source should have no ptes");
+
+	BUG_ON(munmap(dest_mapping, num_pages * page_size) == -1,
+	       "unable to unmap destination mapping");
+	BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+	       "unable to unmap source mapping");
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+// This test validates that we can MREMAP_DONTUNMAP for a portion of an
+// existing mapping.
+static void mremap_dontunmap_partial_mapping()
+{
+	/*
+	 *  source mapping:
+	 *  --------------
+	 *  | aaaaaaaaaa |
+	 *  --------------
+	 *  to become:
+	 *  --------------
+	 *  | aaaaa00000 |
+	 *  --------------
+	 *  With the destination mapping containing 5 pages of As.
+	 *  ---------
+	 *  | aaaaa |
+	 *  ---------
+	 */
+	unsigned long num_pages = 10;
+	void *source_mapping =
+	    mmap(NULL, num_pages * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+	memset(source_mapping, 'a', num_pages * page_size);
+
+	// We will grab the last 5 pages of the source and move them.
+	void *dest_mapping =
+	    mremap(source_mapping + (5 * page_size), 5 * page_size,
+		   5 * page_size,
+		   MREMAP_DONTUNMAP | MREMAP_MAYMOVE, NULL);
+	BUG_ON(dest_mapping == MAP_FAILED, "mremap");
+
+	// We expect the first 5 pages of the source to contain a's and the
+	// final 5 pages to contain zeros.
+	BUG_ON(check_region_contains_byte(source_mapping, 5 * page_size, 'a') !=
+	       0, "first 5 pages of source should have original pages");
+	BUG_ON(check_region_contains_byte
+	       (source_mapping + (5 * page_size), 5 * page_size, 0) != 0,
+	       "final 5 pages of source should have no ptes");
+
+	// Finally we expect the destination to have 5 pages worth of a's.
+	BUG_ON(check_region_contains_byte(dest_mapping, 5 * page_size, 'a') !=
+	       0, "dest mapping should contain ptes from the source");
+
+	BUG_ON(munmap(dest_mapping, 5 * page_size) == -1,
+	       "unable to unmap destination mapping");
+	BUG_ON(munmap(source_mapping, num_pages * page_size) == -1,
+	       "unable to unmap source mapping");
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+// This test validates that we can remap over only a portion of a mapping.
+static void mremap_dontunmap_partial_mapping_overwrite(void)
+{
+	/*
+	 *  source mapping:
+	 *  ---------
+	 *  |aaaaa|
+	 *  ---------
+	 *  dest mapping initially:
+	 *  -----------
+	 *  |XXXXXXXXXX|
+	 *  ------------
+	 *  Source to become:
+	 *  ---------
+	 *  |00000|
+	 *  ---------
+	 *  With the destination mapping containing 5 pages of As.
+	 *  ------------
+	 *  |aaaaaXXXXX|
+	 *  ------------
+	 */
+	void *source_mapping =
+	    mmap(NULL, 5 * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(source_mapping == MAP_FAILED, "mmap");
+	memset(source_mapping, 'a', 5 * page_size);
+
+	void *dest_mapping =
+	    mmap(NULL, 10 * page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(dest_mapping == MAP_FAILED, "mmap");
+	memset(dest_mapping, 'X', 10 * page_size);
+
+	// We will grab the last 5 pages of the source and move them.
+	void *remapped_mapping =
+	    mremap(source_mapping, 5 * page_size,
+		   5 * page_size,
+		   MREMAP_DONTUNMAP | MREMAP_MAYMOVE | MREMAP_FIXED, dest_mapping);
+	BUG_ON(dest_mapping == MAP_FAILED, "mremap");
+	BUG_ON(dest_mapping != remapped_mapping, "expected to remap to dest_mapping");
+
+	BUG_ON(check_region_contains_byte(source_mapping, 5 * page_size, 0) !=
+	       0, "first 5 pages of source should have no ptes");
+
+	// Finally we expect the destination to have 5 pages worth of a's.
+	BUG_ON(check_region_contains_byte(dest_mapping, 5 * page_size, 'a') != 0,
+			"dest mapping should contain ptes from the source");
+
+	// Finally the last 5 pages shouldn't have been touched.
+	BUG_ON(check_region_contains_byte(dest_mapping + (5 * page_size),
+				5 * page_size, 'X') != 0,
+			"dest mapping should have retained the last 5 pages");
+
+	BUG_ON(munmap(dest_mapping, 10 * page_size) == -1,
+	       "unable to unmap destination mapping");
+	BUG_ON(munmap(source_mapping, 5 * page_size) == -1,
+	       "unable to unmap source mapping");
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+int main(void)
+{
+	ksft_print_header();
+
+	page_size = sysconf(_SC_PAGE_SIZE);
+
+	// test for kernel support for MREMAP_DONTUNMAP skipping the test if
+	// not.
+	if (kernel_support_for_mremap_dontunmap() != 0) {
+		ksft_print_msg("No kernel support for MREMAP_DONTUNMAP\n");
+		ksft_finished();
+	}
+
+	ksft_set_plan(5);
+
+	// Keep a page sized buffer around for when we need it.
+	page_buffer =
+	    mmap(NULL, page_size, PROT_READ | PROT_WRITE,
+		 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	BUG_ON(page_buffer == MAP_FAILED, "unable to mmap a page.");
+
+	mremap_dontunmap_simple();
+	mremap_dontunmap_simple_shmem();
+	mremap_dontunmap_simple_fixed();
+	mremap_dontunmap_partial_mapping();
+	mremap_dontunmap_partial_mapping_overwrite();
+
+	BUG_ON(munmap(page_buffer, page_size) == -1,
+	       "unable to unmap page buffer");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/mremap_test.c b/tools/testing/selftests/mm/mremap_test.c
new file mode 100644
index 000000000000..308576437228
--- /dev/null
+++ b/tools/testing/selftests/mm/mremap_test.c
@@ -0,0 +1,1485 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 Google LLC
+ */
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/userfaultfd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <syscall.h>
+#include <time.h>
+#include <stdbool.h>
+
+#include "kselftest.h"
+
+#define EXPECT_SUCCESS 0
+#define EXPECT_FAILURE 1
+#define NON_OVERLAPPING 0
+#define OVERLAPPING 1
+#define NS_PER_SEC 1000000000ULL
+#define VALIDATION_DEFAULT_THRESHOLD 4	/* 4MB */
+#define VALIDATION_NO_THRESHOLD 0	/* Verify the entire region */
+
+#ifndef MIN
+#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
+#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
+#endif
+#define SIZE_MB(m) ((size_t)m * (1024 * 1024))
+#define SIZE_KB(k) ((size_t)k * 1024)
+
+struct config {
+	unsigned long long src_alignment;
+	unsigned long long dest_alignment;
+	unsigned long long region_size;
+	int overlapping;
+	unsigned int dest_preamble_size;
+};
+
+struct test {
+	const char *name;
+	struct config config;
+	int expect_failure;
+};
+
+enum {
+	_1KB = 1ULL << 10,	/* 1KB -> not page aligned */
+	_4KB = 4ULL << 10,
+	_8KB = 8ULL << 10,
+	_1MB = 1ULL << 20,
+	_2MB = 2ULL << 20,
+	_4MB = 4ULL << 20,
+	_5MB = 5ULL << 20,
+	_1GB = 1ULL << 30,
+	_2GB = 2ULL << 30,
+	PMD = _2MB,
+	PUD = _1GB,
+};
+
+#define PTE page_size
+
+#define MAKE_TEST(source_align, destination_align, size,	\
+		  overlaps, should_fail, test_name)		\
+(struct test){							\
+	.name = test_name,					\
+	.config = {						\
+		.src_alignment = source_align,			\
+		.dest_alignment = destination_align,		\
+		.region_size = size,				\
+		.overlapping = overlaps,			\
+	},							\
+	.expect_failure = should_fail				\
+}
+
+/* compute square root using binary search */
+static unsigned long get_sqrt(unsigned long val)
+{
+	unsigned long low = 1;
+
+	/* assuming rand_size is less than 1TB */
+	unsigned long high = (1UL << 20);
+
+	while (low <= high) {
+		unsigned long mid = low + (high - low) / 2;
+		unsigned long temp = mid * mid;
+
+		if (temp == val)
+			return mid;
+		if (temp < val)
+			low = mid + 1;
+		high = mid - 1;
+	}
+	return low;
+}
+
+/*
+ * Returns false if the requested remap region overlaps with an
+ * existing mapping (e.g text, stack) else returns true.
+ */
+static bool is_remap_region_valid(void *addr, unsigned long long size)
+{
+	void *remap_addr = NULL;
+	bool ret = true;
+
+	/* Use MAP_FIXED_NOREPLACE flag to ensure region is not mapped */
+	remap_addr = mmap(addr, size, PROT_READ | PROT_WRITE,
+					 MAP_FIXED_NOREPLACE | MAP_ANONYMOUS | MAP_SHARED,
+					 -1, 0);
+
+	if (remap_addr == MAP_FAILED) {
+		if (errno == EEXIST)
+			ret = false;
+	} else {
+		munmap(remap_addr, size);
+	}
+
+	return ret;
+}
+
+/* Returns mmap_min_addr sysctl tunable from procfs */
+static unsigned long long get_mmap_min_addr(void)
+{
+	FILE *fp;
+	int n_matched;
+	static unsigned long long addr;
+
+	if (addr)
+		return addr;
+
+	fp = fopen("/proc/sys/vm/mmap_min_addr", "r");
+	if (fp == NULL) {
+		ksft_print_msg("Failed to open /proc/sys/vm/mmap_min_addr: %s\n",
+			strerror(errno));
+		exit(KSFT_SKIP);
+	}
+
+	n_matched = fscanf(fp, "%llu", &addr);
+	if (n_matched != 1) {
+		ksft_print_msg("Failed to read /proc/sys/vm/mmap_min_addr: %s\n",
+			strerror(errno));
+		fclose(fp);
+		exit(KSFT_SKIP);
+	}
+
+	fclose(fp);
+	return addr;
+}
+
+/*
+ * Using /proc/self/maps, assert that the specified address range is contained
+ * within a single mapping.
+ */
+static bool is_range_mapped(FILE *maps_fp, unsigned long start,
+			    unsigned long end)
+{
+	char *line = NULL;
+	size_t len = 0;
+	bool success = false;
+	unsigned long first_val, second_val;
+
+	rewind(maps_fp);
+
+	while (getline(&line, &len, maps_fp) != -1) {
+		if (sscanf(line, "%lx-%lx", &first_val, &second_val) != 2) {
+			ksft_exit_fail_msg("cannot parse /proc/self/maps\n");
+			break;
+		}
+
+		if (first_val <= start && second_val >= end) {
+			success = true;
+			fflush(maps_fp);
+			break;
+		}
+	}
+
+	return success;
+}
+
+/* Check if [ptr, ptr + size) mapped in /proc/self/maps. */
+static bool is_ptr_mapped(FILE *maps_fp, void *ptr, unsigned long size)
+{
+	unsigned long start = (unsigned long)ptr;
+	unsigned long end = start + size;
+
+	return is_range_mapped(maps_fp, start, end);
+}
+
+/*
+ * Returns the start address of the mapping on success, else returns
+ * NULL on failure.
+ */
+static void *get_source_mapping(struct config c)
+{
+	unsigned long long addr = 0ULL;
+	void *src_addr = NULL;
+	unsigned long long mmap_min_addr;
+
+	mmap_min_addr = get_mmap_min_addr();
+	/*
+	 * For some tests, we need to not have any mappings below the
+	 * source mapping. Add some headroom to mmap_min_addr for this.
+	 */
+	mmap_min_addr += 10 * _4MB;
+
+retry:
+	addr += c.src_alignment;
+	if (addr < mmap_min_addr)
+		goto retry;
+
+	src_addr = mmap((void *) addr, c.region_size, PROT_READ | PROT_WRITE,
+					MAP_FIXED_NOREPLACE | MAP_ANONYMOUS | MAP_SHARED,
+					-1, 0);
+	if (src_addr == MAP_FAILED) {
+		if (errno == EPERM || errno == EEXIST)
+			goto retry;
+		goto error;
+	}
+	/*
+	 * Check that the address is aligned to the specified alignment.
+	 * Addresses which have alignments that are multiples of that
+	 * specified are not considered valid. For instance, 1GB address is
+	 * 2MB-aligned, however it will not be considered valid for a
+	 * requested alignment of 2MB. This is done to reduce coincidental
+	 * alignment in the tests.
+	 */
+	if (((unsigned long long) src_addr & (c.src_alignment - 1)) ||
+			!((unsigned long long) src_addr & c.src_alignment)) {
+		munmap(src_addr, c.region_size);
+		goto retry;
+	}
+
+	if (!src_addr)
+		goto error;
+
+	return src_addr;
+error:
+	ksft_print_msg("Failed to map source region: %s\n",
+			strerror(errno));
+	return NULL;
+}
+
+/*
+ * This test validates that merge is called when expanding a mapping.
+ * Mapping containing three pages is created, middle page is unmapped
+ * and then the mapping containing the first page is expanded so that
+ * it fills the created hole. The two parts should merge creating
+ * single mapping with three pages.
+ */
+static void mremap_expand_merge(FILE *maps_fp, unsigned long page_size)
+{
+	char *test_name = "mremap expand merge";
+	bool success = false;
+	char *remap, *start;
+
+	start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE,
+		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	if (start == MAP_FAILED) {
+		ksft_print_msg("mmap failed: %s\n", strerror(errno));
+		goto out;
+	}
+
+	munmap(start + page_size, page_size);
+	remap = mremap(start, page_size, 2 * page_size, 0);
+	if (remap == MAP_FAILED) {
+		ksft_print_msg("mremap failed: %s\n", strerror(errno));
+		munmap(start, page_size);
+		munmap(start + 2 * page_size, page_size);
+		goto out;
+	}
+
+	success = is_range_mapped(maps_fp, (unsigned long)start,
+				  (unsigned long)(start + 3 * page_size));
+	munmap(start, 3 * page_size);
+
+out:
+	if (success)
+		ksft_test_result_pass("%s\n", test_name);
+	else
+		ksft_test_result_fail("%s\n", test_name);
+}
+
+/*
+ * Similar to mremap_expand_merge() except instead of removing the middle page,
+ * we remove the last then attempt to remap offset from the second page. This
+ * should result in the mapping being restored to its former state.
+ */
+static void mremap_expand_merge_offset(FILE *maps_fp, unsigned long page_size)
+{
+
+	char *test_name = "mremap expand merge offset";
+	bool success = false;
+	char *remap, *start;
+
+	start = mmap(NULL, 3 * page_size, PROT_READ | PROT_WRITE,
+		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	if (start == MAP_FAILED) {
+		ksft_print_msg("mmap failed: %s\n", strerror(errno));
+		goto out;
+	}
+
+	/* Unmap final page to ensure we have space to expand. */
+	munmap(start + 2 * page_size, page_size);
+	remap = mremap(start + page_size, page_size, 2 * page_size, 0);
+	if (remap == MAP_FAILED) {
+		ksft_print_msg("mremap failed: %s\n", strerror(errno));
+		munmap(start, 2 * page_size);
+		goto out;
+	}
+
+	success = is_range_mapped(maps_fp, (unsigned long)start,
+				  (unsigned long)(start + 3 * page_size));
+	munmap(start, 3 * page_size);
+
+out:
+	if (success)
+		ksft_test_result_pass("%s\n", test_name);
+	else
+		ksft_test_result_fail("%s\n", test_name);
+}
+
+/*
+ * Verify that an mremap within a range does not cause corruption
+ * of unrelated part of range.
+ *
+ * Consider the following range which is 2MB aligned and is
+ * a part of a larger 20MB range which is not shown. Each
+ * character is 256KB below making the source and destination
+ * 2MB each. The lower case letters are moved (s to d) and the
+ * upper case letters are not moved. The below test verifies
+ * that the upper case S letters are not corrupted by the
+ * adjacent mremap.
+ *
+ * |DDDDddddSSSSssss|
+ */
+static void mremap_move_within_range(unsigned int pattern_seed, char *rand_addr)
+{
+	char *test_name = "mremap mremap move within range";
+	void *src, *dest;
+	unsigned int i, success = 1;
+
+	size_t size = SIZE_MB(20);
+	void *ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (ptr == MAP_FAILED) {
+		perror("mmap");
+		success = 0;
+		goto out;
+	}
+	memset(ptr, 0, size);
+
+	src = ptr + SIZE_MB(6);
+	src = (void *)((unsigned long)src & ~(SIZE_MB(2) - 1));
+
+	/* Set byte pattern for source block. */
+	memcpy(src, rand_addr, SIZE_MB(2));
+
+	dest = src - SIZE_MB(2);
+
+	void *new_ptr = mremap(src + SIZE_MB(1), SIZE_MB(1), SIZE_MB(1),
+						   MREMAP_MAYMOVE | MREMAP_FIXED, dest + SIZE_MB(1));
+	if (new_ptr == MAP_FAILED) {
+		perror("mremap");
+		success = 0;
+		goto out;
+	}
+
+	/* Verify byte pattern after remapping */
+	srand(pattern_seed);
+	for (i = 0; i < SIZE_MB(1); i++) {
+		char c = (char) rand();
+
+		if (((char *)src)[i] != c) {
+			ksft_print_msg("Data at src at %d got corrupted due to unrelated mremap\n",
+				       i);
+			ksft_print_msg("Expected: %#x\t Got: %#x\n", c & 0xff,
+					((char *) src)[i] & 0xff);
+			success = 0;
+		}
+	}
+
+out:
+	if (munmap(ptr, size) == -1)
+		perror("munmap");
+
+	if (success)
+		ksft_test_result_pass("%s\n", test_name);
+	else
+		ksft_test_result_fail("%s\n", test_name);
+}
+
+static bool is_multiple_vma_range_ok(unsigned int pattern_seed,
+				     char *ptr, unsigned long page_size)
+{
+	int i;
+
+	srand(pattern_seed);
+	for (i = 0; i <= 10; i += 2) {
+		int j;
+		char *buf = &ptr[i * page_size];
+		size_t size = i == 4 ? 2 * page_size : page_size;
+
+		for (j = 0; j < size; j++) {
+			char chr = rand();
+
+			if (chr != buf[j]) {
+				ksft_print_msg("page %d offset %d corrupted, expected %d got %d\n",
+					       i, j, chr, buf[j]);
+				return false;
+			}
+		}
+	}
+
+	return true;
+}
+
+static void mremap_move_multiple_vmas(unsigned int pattern_seed,
+				      unsigned long page_size,
+				      bool dont_unmap)
+{
+	int mremap_flags = MREMAP_FIXED | MREMAP_MAYMOVE;
+	char *test_name = "mremap move multiple vmas";
+	const size_t size = 11 * page_size;
+	bool success = true;
+	char *ptr, *tgt_ptr;
+	int i;
+
+	if (dont_unmap)
+		mremap_flags |= MREMAP_DONTUNMAP;
+
+	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+
+	tgt_ptr = mmap(NULL, 2 * size, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (tgt_ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+	if (munmap(tgt_ptr, 2 * size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap so we end up with:
+	 *
+	 *  0   2   4 5 6   8   10 offset in buffer
+	 * |*| |*| |*****| |*| |*|
+	 * |*| |*| |*****| |*| |*|
+	 *  0   1   2 3 4   5   6  pattern offset
+	 */
+	for (i = 1; i < 10; i += 2) {
+		if (i == 5)
+			continue;
+
+		if (munmap(&ptr[i * page_size], page_size)) {
+			perror("munmap");
+			success = false;
+			goto out_unmap;
+		}
+	}
+
+	srand(pattern_seed);
+
+	/* Set up random patterns. */
+	for (i = 0; i <= 10; i += 2) {
+		int j;
+		size_t size = i == 4 ? 2 * page_size : page_size;
+		char *buf = &ptr[i * page_size];
+
+		for (j = 0; j < size; j++)
+			buf[j] = rand();
+	}
+
+	/* First, just move the whole thing. */
+	if (mremap(ptr, size, size, mremap_flags, tgt_ptr) == MAP_FAILED) {
+		perror("mremap");
+		success = false;
+		goto out_unmap;
+	}
+	/* Check move was ok. */
+	if (!is_multiple_vma_range_ok(pattern_seed, tgt_ptr, page_size)) {
+		success = false;
+		goto out_unmap;
+	}
+
+	/* Move next to itself. */
+	if (mremap(tgt_ptr, size, size, mremap_flags,
+		   &tgt_ptr[size]) == MAP_FAILED) {
+		perror("mremap");
+		success = false;
+		goto out_unmap;
+	}
+	/* Check that the move is ok. */
+	if (!is_multiple_vma_range_ok(pattern_seed, &tgt_ptr[size], page_size)) {
+		success = false;
+		goto out_unmap;
+	}
+
+	/* Map a range to overwrite. */
+	if (mmap(tgt_ptr, size, PROT_NONE,
+		 MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0) == MAP_FAILED) {
+		perror("mmap tgt");
+		success = false;
+		goto out_unmap;
+	}
+	/* Move and overwrite. */
+	if (mremap(&tgt_ptr[size], size, size,
+		   mremap_flags, tgt_ptr) == MAP_FAILED) {
+		perror("mremap");
+		success = false;
+		goto out_unmap;
+	}
+	/* Check that the move is ok. */
+	if (!is_multiple_vma_range_ok(pattern_seed, tgt_ptr, page_size)) {
+		success = false;
+		goto out_unmap;
+	}
+
+out_unmap:
+	if (munmap(tgt_ptr, 2 * size))
+		perror("munmap tgt");
+	if (munmap(ptr, size))
+		perror("munmap src");
+
+out:
+	if (success)
+		ksft_test_result_pass("%s%s\n", test_name,
+				      dont_unmap ? " [dontunnmap]" : "");
+	else
+		ksft_test_result_fail("%s%s\n", test_name,
+				      dont_unmap ? " [dontunnmap]" : "");
+}
+
+static void mremap_shrink_multiple_vmas(unsigned long page_size,
+					bool inplace)
+{
+	char *test_name = "mremap shrink multiple vmas";
+	const size_t size = 10 * page_size;
+	bool success = true;
+	char *ptr, *tgt_ptr;
+	void *res;
+	int i;
+
+	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+
+	tgt_ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (tgt_ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+	if (munmap(tgt_ptr, size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap so we end up with:
+	 *
+	 *  0   2   4   6   8   10 offset in buffer
+	 * |*| |*| |*| |*| |*| |*|
+	 * |*| |*| |*| |*| |*| |*|
+	 */
+	for (i = 1; i < 10; i += 2) {
+		if (munmap(&ptr[i * page_size], page_size)) {
+			perror("munmap");
+			success = false;
+			goto out_unmap;
+		}
+	}
+
+	/*
+	 * Shrink in-place across multiple VMAs and gaps so we end up with:
+	 *
+	 *  0
+	 * |*|
+	 * |*|
+	 */
+	if (inplace)
+		res = mremap(ptr, size, page_size, 0);
+	else
+		res = mremap(ptr, size, page_size, MREMAP_MAYMOVE | MREMAP_FIXED,
+			     tgt_ptr);
+
+	if (res == MAP_FAILED) {
+		perror("mremap");
+		success = false;
+		goto out_unmap;
+	}
+
+out_unmap:
+	if (munmap(tgt_ptr, size))
+		perror("munmap tgt");
+	if (munmap(ptr, size))
+		perror("munmap src");
+out:
+	if (success)
+		ksft_test_result_pass("%s%s\n", test_name,
+				      inplace ? " [inplace]" : "");
+	else
+		ksft_test_result_fail("%s%s\n", test_name,
+				      inplace ? " [inplace]" : "");
+}
+
+static void mremap_move_multiple_vmas_split(unsigned int pattern_seed,
+					    unsigned long page_size,
+					    bool dont_unmap)
+{
+	char *test_name = "mremap move multiple vmas split";
+	int mremap_flags = MREMAP_FIXED | MREMAP_MAYMOVE;
+	const size_t size = 10 * page_size;
+	bool success = true;
+	char *ptr, *tgt_ptr;
+	int i;
+
+	if (dont_unmap)
+		mremap_flags |= MREMAP_DONTUNMAP;
+
+	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+
+	tgt_ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (tgt_ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out;
+	}
+	if (munmap(tgt_ptr, size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap so we end up with:
+	 *
+	 *  0 1 2 3 4 5 6 7 8 9 10 offset in buffer
+	 * |**********| |*******|
+	 * |**********| |*******|
+	 *  0 1 2 3 4   5 6 7 8 9  pattern offset
+	 */
+	if (munmap(&ptr[5 * page_size], page_size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/* Set up random patterns. */
+	srand(pattern_seed);
+	for (i = 0; i < 10; i++) {
+		int j;
+		char *buf = &ptr[i * page_size];
+
+		if (i == 5)
+			continue;
+
+		for (j = 0; j < page_size; j++)
+			buf[j] = rand();
+	}
+
+	/*
+	 * Move the below:
+	 *
+	 *      <------------->
+	 *  0 1 2 3 4 5 6 7 8 9 10 offset in buffer
+	 * |**********| |*******|
+	 * |**********| |*******|
+	 *  0 1 2 3 4   5 6 7 8 9  pattern offset
+	 *
+	 * Into:
+	 *
+	 * 0 1 2 3 4 5 6 7 offset in buffer
+	 * |*****| |*****|
+	 * |*****| |*****|
+	 * 2 3 4   5 6 7   pattern offset
+	 */
+	if (mremap(&ptr[2 * page_size], size - 3 * page_size, size - 3 * page_size,
+		   mremap_flags, tgt_ptr) == MAP_FAILED) {
+		perror("mremap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/* Offset into random pattern. */
+	srand(pattern_seed);
+	for (i = 0; i < 2 * page_size; i++)
+		rand();
+
+	/* Check pattern. */
+	for (i = 0; i < 7; i++) {
+		int j;
+		char *buf = &tgt_ptr[i * page_size];
+
+		if (i == 3)
+			continue;
+
+		for (j = 0; j < page_size; j++) {
+			char chr = rand();
+
+			if (chr != buf[j]) {
+				ksft_print_msg("page %d offset %d corrupted, expected %d got %d\n",
+					       i, j, chr, buf[j]);
+				goto out_unmap;
+			}
+		}
+	}
+
+out_unmap:
+	if (munmap(tgt_ptr, size))
+		perror("munmap tgt");
+	if (munmap(ptr, size))
+		perror("munmap src");
+out:
+	if (success)
+		ksft_test_result_pass("%s%s\n", test_name,
+				      dont_unmap ? " [dontunnmap]" : "");
+	else
+		ksft_test_result_fail("%s%s\n", test_name,
+				      dont_unmap ? " [dontunnmap]" : "");
+}
+
+#ifdef __NR_userfaultfd
+static void mremap_move_multi_invalid_vmas(FILE *maps_fp,
+		unsigned long page_size)
+{
+	char *test_name = "mremap move multiple invalid vmas";
+	const size_t size = 10 * page_size;
+	bool success = true;
+	char *ptr, *tgt_ptr;
+	int uffd, err, i;
+	void *res;
+	struct uffdio_api api = {
+		.api = UFFD_API,
+		.features = UFFD_EVENT_PAGEFAULT,
+	};
+
+	uffd = syscall(__NR_userfaultfd, O_NONBLOCK);
+	if (uffd == -1) {
+		err = errno;
+		perror("userfaultfd");
+		if (err == EPERM) {
+			ksft_test_result_skip("%s - missing uffd", test_name);
+			return;
+		}
+		success = false;
+		goto out;
+	}
+	if (ioctl(uffd, UFFDIO_API, &api)) {
+		perror("ioctl UFFDIO_API");
+		success = false;
+		goto out_close_uffd;
+	}
+
+	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out_close_uffd;
+	}
+
+	tgt_ptr = mmap(NULL, size, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (tgt_ptr == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out_close_uffd;
+	}
+	if (munmap(tgt_ptr, size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap so we end up with:
+	 *
+	 *  0   2   4   6   8   10 offset in buffer
+	 * |*| |*| |*| |*| |*|
+	 * |*| |*| |*| |*| |*|
+	 *
+	 * Additionally, register each with UFFD.
+	 */
+	for (i = 0; i < 10; i += 2) {
+		void *unmap_ptr = &ptr[(i + 1) * page_size];
+		unsigned long start = (unsigned long)&ptr[i * page_size];
+		struct uffdio_register reg = {
+			.range = {
+				.start = start,
+				.len = page_size,
+			},
+			.mode = UFFDIO_REGISTER_MODE_MISSING,
+		};
+
+		if (ioctl(uffd, UFFDIO_REGISTER, &reg) == -1) {
+			perror("ioctl UFFDIO_REGISTER");
+			success = false;
+			goto out_unmap;
+		}
+		if (munmap(unmap_ptr, page_size)) {
+			perror("munmap");
+			success = false;
+			goto out_unmap;
+		}
+	}
+
+	/*
+	 * Now try to move the entire range which is invalid for multi VMA move.
+	 *
+	 * This will fail, and no VMA should be moved, as we check this ahead of
+	 * time.
+	 */
+	res = mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, tgt_ptr);
+	err = errno;
+	if (res != MAP_FAILED) {
+		fprintf(stderr, "mremap() succeeded for multi VMA uffd armed\n");
+		success = false;
+		goto out_unmap;
+	}
+	if (err != EFAULT) {
+		errno = err;
+		perror("mremap() unexpected error");
+		success = false;
+		goto out_unmap;
+	}
+	if (is_ptr_mapped(maps_fp, tgt_ptr, page_size)) {
+		fprintf(stderr,
+			"Invalid uffd-armed VMA at start of multi range moved\n");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Now try to move a single VMA, this should succeed as not multi VMA
+	 * move.
+	 */
+	res = mremap(ptr, page_size, page_size,
+		     MREMAP_MAYMOVE | MREMAP_FIXED, tgt_ptr);
+	if (res == MAP_FAILED) {
+		perror("mremap single invalid-multi VMA");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap the VMA, and remap a non-uffd registered (therefore, multi VMA
+	 * move valid) VMA at the start of ptr range.
+	 */
+	if (munmap(tgt_ptr, page_size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+	res = mmap(ptr, page_size, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
+	if (res == MAP_FAILED) {
+		perror("mmap");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Now try to move the entire range, we should succeed in moving the
+	 * first VMA, but no others, and report a failure.
+	 */
+	res = mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, tgt_ptr);
+	err = errno;
+	if (res != MAP_FAILED) {
+		fprintf(stderr, "mremap() succeeded for multi VMA uffd armed\n");
+		success = false;
+		goto out_unmap;
+	}
+	if (err != EFAULT) {
+		errno = err;
+		perror("mremap() unexpected error");
+		success = false;
+		goto out_unmap;
+	}
+	if (!is_ptr_mapped(maps_fp, tgt_ptr, page_size)) {
+		fprintf(stderr, "Valid VMA not moved\n");
+		success = false;
+		goto out_unmap;
+	}
+
+	/*
+	 * Unmap the VMA, and map valid VMA at start of ptr range, and replace
+	 * all existing multi-move invalid VMAs, except the last, with valid
+	 * multi-move VMAs.
+	 */
+	if (munmap(tgt_ptr, page_size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+	if (munmap(ptr, size - 2 * page_size)) {
+		perror("munmap");
+		success = false;
+		goto out_unmap;
+	}
+	for (i = 0; i < 8; i += 2) {
+		res = mmap(&ptr[i * page_size], page_size,
+			   PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0);
+		if (res == MAP_FAILED) {
+			perror("mmap");
+			success = false;
+			goto out_unmap;
+		}
+	}
+
+	/*
+	 * Now try to move the entire range, we should succeed in moving all but
+	 * the last VMA, and report a failure.
+	 */
+	res = mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, tgt_ptr);
+	err = errno;
+	if (res != MAP_FAILED) {
+		fprintf(stderr, "mremap() succeeded for multi VMA uffd armed\n");
+		success = false;
+		goto out_unmap;
+	}
+	if (err != EFAULT) {
+		errno = err;
+		perror("mremap() unexpected error");
+		success = false;
+		goto out_unmap;
+	}
+
+	for (i = 0; i < 10; i += 2) {
+		bool is_mapped = is_ptr_mapped(maps_fp,
+				&tgt_ptr[i * page_size], page_size);
+
+		if (i < 8 && !is_mapped) {
+			fprintf(stderr, "Valid VMA not moved at %d\n", i);
+			success = false;
+			goto out_unmap;
+		} else if (i == 8 && is_mapped) {
+			fprintf(stderr, "Invalid VMA moved at %d\n", i);
+			success = false;
+			goto out_unmap;
+		}
+	}
+
+out_unmap:
+	if (munmap(tgt_ptr, size))
+		perror("munmap tgt");
+	if (munmap(ptr, size))
+		perror("munmap src");
+out_close_uffd:
+	close(uffd);
+out:
+	if (success)
+		ksft_test_result_pass("%s\n", test_name);
+	else
+		ksft_test_result_fail("%s\n", test_name);
+}
+#else
+static void mremap_move_multi_invalid_vmas(FILE *maps_fp, unsigned long page_size)
+{
+	char *test_name = "mremap move multiple invalid vmas";
+
+	ksft_test_result_skip("%s - missing uffd", test_name);
+}
+#endif /* __NR_userfaultfd */
+
+/* Returns the time taken for the remap on success else returns -1. */
+static long long remap_region(struct config c, unsigned int threshold_mb,
+			      char *rand_addr)
+{
+	void *addr, *tmp_addr, *src_addr, *dest_addr, *dest_preamble_addr = NULL;
+	unsigned long long t, d;
+	struct timespec t_start = {0, 0}, t_end = {0, 0};
+	long long  start_ns, end_ns, align_mask, ret, offset;
+	unsigned long long threshold;
+	unsigned long num_chunks;
+
+	if (threshold_mb == VALIDATION_NO_THRESHOLD)
+		threshold = c.region_size;
+	else
+		threshold = MIN(threshold_mb * _1MB, c.region_size);
+
+	src_addr = get_source_mapping(c);
+	if (!src_addr) {
+		ret = -1;
+		goto out;
+	}
+
+	/* Set byte pattern for source block. */
+	memcpy(src_addr, rand_addr, threshold);
+
+	/* Mask to zero out lower bits of address for alignment */
+	align_mask = ~(c.dest_alignment - 1);
+	/* Offset of destination address from the end of the source region */
+	offset = (c.overlapping) ? -c.dest_alignment : c.dest_alignment;
+	addr = (void *) (((unsigned long long) src_addr + c.region_size
+			  + offset) & align_mask);
+
+	/* Remap after the destination block preamble. */
+	addr += c.dest_preamble_size;
+
+	/* See comment in get_source_mapping() */
+	if (!((unsigned long long) addr & c.dest_alignment))
+		addr = (void *) ((unsigned long long) addr | c.dest_alignment);
+
+	/* Don't destroy existing mappings unless expected to overlap */
+	while (!is_remap_region_valid(addr, c.region_size) && !c.overlapping) {
+		/* Check for unsigned overflow */
+		tmp_addr = addr + c.dest_alignment;
+		if (tmp_addr < addr) {
+			ksft_print_msg("Couldn't find a valid region to remap to\n");
+			ret = -1;
+			goto clean_up_src;
+		}
+		addr += c.dest_alignment;
+	}
+
+	if (c.dest_preamble_size) {
+		dest_preamble_addr = mmap((void *) addr - c.dest_preamble_size, c.dest_preamble_size,
+					  PROT_READ | PROT_WRITE,
+					  MAP_FIXED_NOREPLACE | MAP_ANONYMOUS | MAP_SHARED,
+							-1, 0);
+		if (dest_preamble_addr == MAP_FAILED) {
+			ksft_print_msg("Failed to map dest preamble region: %s\n",
+					strerror(errno));
+			ret = -1;
+			goto clean_up_src;
+		}
+
+		/* Set byte pattern for the dest preamble block. */
+		memcpy(dest_preamble_addr, rand_addr, c.dest_preamble_size);
+	}
+
+	clock_gettime(CLOCK_MONOTONIC, &t_start);
+	dest_addr = mremap(src_addr, c.region_size, c.region_size,
+					  MREMAP_MAYMOVE|MREMAP_FIXED, (char *) addr);
+	clock_gettime(CLOCK_MONOTONIC, &t_end);
+
+	if (dest_addr == MAP_FAILED) {
+		ksft_print_msg("mremap failed: %s\n", strerror(errno));
+		ret = -1;
+		goto clean_up_dest_preamble;
+	}
+
+	/*
+	 * Verify byte pattern after remapping. Employ an algorithm with a
+	 * square root time complexity in threshold: divide the range into
+	 * chunks, if memcmp() returns non-zero, only then perform an
+	 * iteration in that chunk to find the mismatch index.
+	 */
+	num_chunks = get_sqrt(threshold);
+	for (unsigned long i = 0; i < num_chunks; ++i) {
+		size_t chunk_size = threshold / num_chunks;
+		unsigned long shift = i * chunk_size;
+
+		if (!memcmp(dest_addr + shift, rand_addr + shift, chunk_size))
+			continue;
+
+		/* brute force iteration only over mismatch segment */
+		for (t = shift; t < shift + chunk_size; ++t) {
+			if (((char *) dest_addr)[t] != rand_addr[t]) {
+				ksft_print_msg("Data after remap doesn't match at offset %llu\n",
+						t);
+				ksft_print_msg("Expected: %#x\t Got: %#x\n", rand_addr[t] & 0xff,
+						((char *) dest_addr)[t] & 0xff);
+				ret = -1;
+				goto clean_up_dest;
+			}
+		}
+	}
+
+	/*
+	 * if threshold is not divisible by num_chunks, then check the
+	 * last chunk
+	 */
+	for (t = num_chunks * (threshold / num_chunks); t < threshold; ++t) {
+		if (((char *) dest_addr)[t] != rand_addr[t]) {
+			ksft_print_msg("Data after remap doesn't match at offset %llu\n",
+					t);
+			ksft_print_msg("Expected: %#x\t Got: %#x\n", rand_addr[t] & 0xff,
+					((char *) dest_addr)[t] & 0xff);
+			ret = -1;
+			goto clean_up_dest;
+		}
+	}
+
+	/* Verify the dest preamble byte pattern after remapping */
+	if (!c.dest_preamble_size)
+		goto no_preamble;
+
+	num_chunks = get_sqrt(c.dest_preamble_size);
+
+	for (unsigned long i = 0; i < num_chunks; ++i) {
+		size_t chunk_size = c.dest_preamble_size / num_chunks;
+		unsigned long shift = i * chunk_size;
+
+		if (!memcmp(dest_preamble_addr + shift, rand_addr + shift,
+			    chunk_size))
+			continue;
+
+		/* brute force iteration only over mismatched segment */
+		for (d = shift; d < shift + chunk_size; ++d) {
+			if (((char *) dest_preamble_addr)[d] != rand_addr[d]) {
+				ksft_print_msg("Preamble data after remap doesn't match at offset %llu\n",
+						d);
+				ksft_print_msg("Expected: %#x\t Got: %#x\n", rand_addr[d] & 0xff,
+						((char *) dest_preamble_addr)[d] & 0xff);
+				ret = -1;
+				goto clean_up_dest;
+			}
+		}
+	}
+
+	for (d = num_chunks * (c.dest_preamble_size / num_chunks); d < c.dest_preamble_size; ++d) {
+		if (((char *) dest_preamble_addr)[d] != rand_addr[d]) {
+			ksft_print_msg("Preamble data after remap doesn't match at offset %llu\n",
+					d);
+			ksft_print_msg("Expected: %#x\t Got: %#x\n", rand_addr[d] & 0xff,
+					((char *) dest_preamble_addr)[d] & 0xff);
+			ret = -1;
+			goto clean_up_dest;
+		}
+	}
+
+no_preamble:
+	start_ns = t_start.tv_sec * NS_PER_SEC + t_start.tv_nsec;
+	end_ns = t_end.tv_sec * NS_PER_SEC + t_end.tv_nsec;
+	ret = end_ns - start_ns;
+
+/*
+ * Since the destination address is specified using MREMAP_FIXED, subsequent
+ * mremap will unmap any previous mapping at the address range specified by
+ * dest_addr and region_size. This significantly affects the remap time of
+ * subsequent tests. So we clean up mappings after each test.
+ */
+clean_up_dest:
+	munmap(dest_addr, c.region_size);
+clean_up_dest_preamble:
+	if (c.dest_preamble_size && dest_preamble_addr)
+		munmap(dest_preamble_addr, c.dest_preamble_size);
+clean_up_src:
+	munmap(src_addr, c.region_size);
+out:
+	return ret;
+}
+
+/*
+ * Verify that an mremap aligning down does not destroy
+ * the beginning of the mapping just because the aligned
+ * down address landed on a mapping that maybe does not exist.
+ */
+static void mremap_move_1mb_from_start(unsigned int pattern_seed,
+				       char *rand_addr)
+{
+	char *test_name = "mremap move 1mb from start at 1MB+256KB aligned src";
+	void *src = NULL, *dest = NULL;
+	unsigned int i, success = 1;
+
+	/* Config to reuse get_source_mapping() to do an aligned mmap. */
+	struct config c = {
+		.src_alignment = SIZE_MB(1) + SIZE_KB(256),
+		.region_size = SIZE_MB(6)
+	};
+
+	src = get_source_mapping(c);
+	if (!src) {
+		success = 0;
+		goto out;
+	}
+
+	c.src_alignment = SIZE_MB(1) + SIZE_KB(256);
+	dest = get_source_mapping(c);
+	if (!dest) {
+		success = 0;
+		goto out;
+	}
+
+	/* Set byte pattern for source block. */
+	memcpy(src, rand_addr, SIZE_MB(2));
+
+	/*
+	 * Unmap the beginning of dest so that the aligned address
+	 * falls on no mapping.
+	 */
+	munmap(dest, SIZE_MB(1));
+
+	void *new_ptr = mremap(src + SIZE_MB(1), SIZE_MB(1), SIZE_MB(1),
+						   MREMAP_MAYMOVE | MREMAP_FIXED, dest + SIZE_MB(1));
+	if (new_ptr == MAP_FAILED) {
+		perror("mremap");
+		success = 0;
+		goto out;
+	}
+
+	/* Verify byte pattern after remapping */
+	srand(pattern_seed);
+	for (i = 0; i < SIZE_MB(1); i++) {
+		char c = (char) rand();
+
+		if (((char *)src)[i] != c) {
+			ksft_print_msg("Data at src at %d got corrupted due to unrelated mremap\n",
+				       i);
+			ksft_print_msg("Expected: %#x\t Got: %#x\n", c & 0xff,
+					((char *) src)[i] & 0xff);
+			success = 0;
+		}
+	}
+
+out:
+	if (src && munmap(src, c.region_size) == -1)
+		perror("munmap src");
+
+	if (dest && munmap(dest, c.region_size) == -1)
+		perror("munmap dest");
+
+	if (success)
+		ksft_test_result_pass("%s\n", test_name);
+	else
+		ksft_test_result_fail("%s\n", test_name);
+}
+
+static void run_mremap_test_case(struct test test_case, int *failures,
+				 unsigned int threshold_mb,
+				 char *rand_addr)
+{
+	long long remap_time = remap_region(test_case.config, threshold_mb,
+					    rand_addr);
+
+	if (remap_time < 0) {
+		if (test_case.expect_failure)
+			ksft_test_result_xfail("%s\n\tExpected mremap failure\n",
+					      test_case.name);
+		else {
+			ksft_test_result_fail("%s\n", test_case.name);
+			*failures += 1;
+		}
+	} else {
+		/*
+		 * Comparing mremap time is only applicable if entire region
+		 * was faulted in.
+		 */
+		if (threshold_mb == VALIDATION_NO_THRESHOLD ||
+		    test_case.config.region_size <= threshold_mb * _1MB)
+			ksft_test_result_pass("%s\n\tmremap time: %12lldns\n",
+					      test_case.name, remap_time);
+		else
+			ksft_test_result_pass("%s\n", test_case.name);
+	}
+}
+
+static void usage(const char *cmd)
+{
+	fprintf(stderr,
+		"Usage: %s [[-t <threshold_mb>] [-p <pattern_seed>]]\n"
+		"-t\t only validate threshold_mb of the remapped region\n"
+		"  \t if 0 is supplied no threshold is used; all tests\n"
+		"  \t are run and remapped regions validated fully.\n"
+		"  \t The default threshold used is 4MB.\n"
+		"-p\t provide a seed to generate the random pattern for\n"
+		"  \t validating the remapped region.\n", cmd);
+}
+
+static int parse_args(int argc, char **argv, unsigned int *threshold_mb,
+		      unsigned int *pattern_seed)
+{
+	const char *optstr = "t:p:";
+	int opt;
+
+	while ((opt = getopt(argc, argv, optstr)) != -1) {
+		switch (opt) {
+		case 't':
+			*threshold_mb = atoi(optarg);
+			break;
+		case 'p':
+			*pattern_seed = atoi(optarg);
+			break;
+		default:
+			usage(argv[0]);
+			return -1;
+		}
+	}
+
+	if (optind < argc) {
+		usage(argv[0]);
+		return -1;
+	}
+
+	return 0;
+}
+
+#define MAX_TEST 15
+#define MAX_PERF_TEST 3
+int main(int argc, char **argv)
+{
+	int failures = 0;
+	unsigned int i;
+	int run_perf_tests;
+	unsigned int threshold_mb = VALIDATION_DEFAULT_THRESHOLD;
+
+	/* hard-coded test configs */
+	size_t max_test_variable_region_size = _2GB;
+	size_t max_test_constant_region_size = _2MB;
+	size_t dest_preamble_size = 10 * _4MB;
+
+	unsigned int pattern_seed;
+	char *rand_addr;
+	size_t rand_size;
+	int num_expand_tests = 2;
+	int num_misc_tests = 9;
+	struct test test_cases[MAX_TEST] = {};
+	struct test perf_test_cases[MAX_PERF_TEST];
+	int page_size;
+	time_t t;
+	FILE *maps_fp;
+
+	pattern_seed = (unsigned int) time(&t);
+
+	if (parse_args(argc, argv, &threshold_mb, &pattern_seed) < 0)
+		exit(EXIT_FAILURE);
+
+	ksft_print_msg("Test configs:\n\tthreshold_mb=%u\n\tpattern_seed=%u\n\n",
+		       threshold_mb, pattern_seed);
+
+	/*
+	 * set preallocated random array according to test configs; see the
+	 * functions for the logic of setting the size
+	 */
+	if (!threshold_mb)
+		rand_size = MAX(max_test_variable_region_size,
+				max_test_constant_region_size);
+	else
+		rand_size = MAX(MIN(threshold_mb * _1MB,
+				    max_test_variable_region_size),
+				max_test_constant_region_size);
+	rand_size = MAX(dest_preamble_size, rand_size);
+
+	rand_addr = (char *)mmap(NULL, rand_size, PROT_READ | PROT_WRITE,
+				 MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (rand_addr == MAP_FAILED) {
+		perror("mmap");
+		ksft_exit_fail_msg("cannot mmap rand_addr\n");
+	}
+
+	/* fill stream of random bytes */
+	srand(pattern_seed);
+	for (unsigned long i = 0; i < rand_size; ++i)
+		rand_addr[i] = (char) rand();
+
+	page_size = sysconf(_SC_PAGESIZE);
+
+	/* Expected mremap failures */
+	test_cases[0] =	MAKE_TEST(page_size, page_size, page_size,
+				  OVERLAPPING, EXPECT_FAILURE,
+				  "mremap - Source and Destination Regions Overlapping");
+
+	test_cases[1] = MAKE_TEST(page_size, page_size/4, page_size,
+				  NON_OVERLAPPING, EXPECT_FAILURE,
+				  "mremap - Destination Address Misaligned (1KB-aligned)");
+	test_cases[2] = MAKE_TEST(page_size/4, page_size, page_size,
+				  NON_OVERLAPPING, EXPECT_FAILURE,
+				  "mremap - Source Address Misaligned (1KB-aligned)");
+
+	/* Src addr PTE aligned */
+	test_cases[3] = MAKE_TEST(PTE, PTE, PTE * 2,
+				  NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "8KB mremap - Source PTE-aligned, Destination PTE-aligned");
+
+	/* Src addr 1MB aligned */
+	test_cases[4] = MAKE_TEST(_1MB, PTE, _2MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "2MB mremap - Source 1MB-aligned, Destination PTE-aligned");
+	test_cases[5] = MAKE_TEST(_1MB, _1MB, _2MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "2MB mremap - Source 1MB-aligned, Destination 1MB-aligned");
+
+	/* Src addr PMD aligned */
+	test_cases[6] = MAKE_TEST(PMD, PTE, _4MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "4MB mremap - Source PMD-aligned, Destination PTE-aligned");
+	test_cases[7] =	MAKE_TEST(PMD, _1MB, _4MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "4MB mremap - Source PMD-aligned, Destination 1MB-aligned");
+	test_cases[8] = MAKE_TEST(PMD, PMD, _4MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "4MB mremap - Source PMD-aligned, Destination PMD-aligned");
+
+	/* Src addr PUD aligned */
+	test_cases[9] = MAKE_TEST(PUD, PTE, _2GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "2GB mremap - Source PUD-aligned, Destination PTE-aligned");
+	test_cases[10] = MAKE_TEST(PUD, _1MB, _2GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				   "2GB mremap - Source PUD-aligned, Destination 1MB-aligned");
+	test_cases[11] = MAKE_TEST(PUD, PMD, _2GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				   "2GB mremap - Source PUD-aligned, Destination PMD-aligned");
+	test_cases[12] = MAKE_TEST(PUD, PUD, _2GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				   "2GB mremap - Source PUD-aligned, Destination PUD-aligned");
+
+	/* Src and Dest addr 1MB aligned. 5MB mremap. */
+	test_cases[13] = MAKE_TEST(_1MB, _1MB, _5MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "5MB mremap - Source 1MB-aligned, Destination 1MB-aligned");
+
+	/* Src and Dest addr 1MB aligned. 5MB mremap. */
+	test_cases[14] = MAKE_TEST(_1MB, _1MB, _5MB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				  "5MB mremap - Source 1MB-aligned, Dest 1MB-aligned with 40MB Preamble");
+	test_cases[14].config.dest_preamble_size = 10 * _4MB;
+
+	perf_test_cases[0] =  MAKE_TEST(page_size, page_size, _1GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+					"1GB mremap - Source PTE-aligned, Destination PTE-aligned");
+	/*
+	 * mremap 1GB region - Page table level aligned time
+	 * comparison.
+	 */
+	perf_test_cases[1] = MAKE_TEST(PMD, PMD, _1GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				       "1GB mremap - Source PMD-aligned, Destination PMD-aligned");
+	perf_test_cases[2] = MAKE_TEST(PUD, PUD, _1GB, NON_OVERLAPPING, EXPECT_SUCCESS,
+				       "1GB mremap - Source PUD-aligned, Destination PUD-aligned");
+
+	run_perf_tests =  (threshold_mb == VALIDATION_NO_THRESHOLD) ||
+				(threshold_mb * _1MB >= _1GB);
+
+	ksft_set_plan(ARRAY_SIZE(test_cases) + (run_perf_tests ?
+		      ARRAY_SIZE(perf_test_cases) : 0) + num_expand_tests + num_misc_tests);
+
+	for (i = 0; i < ARRAY_SIZE(test_cases); i++)
+		run_mremap_test_case(test_cases[i], &failures, threshold_mb,
+				     rand_addr);
+
+	maps_fp = fopen("/proc/self/maps", "r");
+
+	if (maps_fp == NULL) {
+		munmap(rand_addr, rand_size);
+		ksft_exit_fail_msg("Failed to read /proc/self/maps: %s\n", strerror(errno));
+	}
+
+	mremap_expand_merge(maps_fp, page_size);
+	mremap_expand_merge_offset(maps_fp, page_size);
+
+	mremap_move_within_range(pattern_seed, rand_addr);
+	mremap_move_1mb_from_start(pattern_seed, rand_addr);
+	mremap_shrink_multiple_vmas(page_size, /* inplace= */true);
+	mremap_shrink_multiple_vmas(page_size, /* inplace= */false);
+	mremap_move_multiple_vmas(pattern_seed, page_size, /* dontunmap= */ false);
+	mremap_move_multiple_vmas(pattern_seed, page_size, /* dontunmap= */ true);
+	mremap_move_multiple_vmas_split(pattern_seed, page_size, /* dontunmap= */ false);
+	mremap_move_multiple_vmas_split(pattern_seed, page_size, /* dontunmap= */ true);
+	mremap_move_multi_invalid_vmas(maps_fp, page_size);
+
+	fclose(maps_fp);
+
+	if (run_perf_tests) {
+		ksft_print_msg("\n%s\n",
+		 "mremap HAVE_MOVE_PMD/PUD optimization time comparison for 1GB region:");
+		for (i = 0; i < ARRAY_SIZE(perf_test_cases); i++)
+			run_mremap_test_case(perf_test_cases[i], &failures,
+					     threshold_mb,
+					     rand_addr);
+	}
+
+	munmap(rand_addr, rand_size);
+
+	if (failures > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/mseal_helpers.h b/tools/testing/selftests/mm/mseal_helpers.h
new file mode 100644
index 000000000000..0cfce31c76d2
--- /dev/null
+++ b/tools/testing/selftests/mm/mseal_helpers.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define FAIL_TEST_IF_FALSE(test_passed)					\
+	do {								\
+		if (!(test_passed)) {					\
+			ksft_test_result_fail("%s: line:%d\n",		\
+						__func__, __LINE__);	\
+			return;						\
+		}							\
+	} while (0)
+
+#define SKIP_TEST_IF_FALSE(test_passed)					\
+	do {								\
+		if (!(test_passed)) {					\
+			ksft_test_result_skip("%s: line:%d\n",		\
+						__func__, __LINE__);	\
+			return;						\
+		}							\
+	} while (0)
+
+#define REPORT_TEST_PASS() ksft_test_result_pass("%s\n", __func__)
+
+#ifndef PKEY_DISABLE_ACCESS
+#define PKEY_DISABLE_ACCESS	0x1
+#endif
+
+#ifndef PKEY_DISABLE_WRITE
+#define PKEY_DISABLE_WRITE	0x2
+#endif
+
+#ifndef PKEY_BITS_PER_PKEY
+#define PKEY_BITS_PER_PKEY	2
+#endif
+
+#ifndef PKEY_MASK
+#define PKEY_MASK	(PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE)
+#endif
+
+#ifndef u64
+#define u64 unsigned long long
+#endif
diff --git a/tools/testing/selftests/mm/mseal_test.c b/tools/testing/selftests/mm/mseal_test.c
new file mode 100644
index 000000000000..faad4833366a
--- /dev/null
+++ b/tools/testing/selftests/mm/mseal_test.c
@@ -0,0 +1,1989 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <stdint.h>
+#include <asm-generic/unistd.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <stdbool.h>
+#include "kselftest.h"
+#include <syscall.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/vfs.h>
+#include <sys/stat.h>
+#include "mseal_helpers.h"
+
+static unsigned long get_vma_size(void *addr, int *prot)
+{
+	FILE *maps;
+	char line[256];
+	int size = 0;
+	uintptr_t  addr_start, addr_end;
+	char protstr[5];
+	*prot = 0;
+
+	maps = fopen("/proc/self/maps", "r");
+	if (!maps)
+		return 0;
+
+	while (fgets(line, sizeof(line), maps)) {
+		if (sscanf(line, "%lx-%lx %4s", &addr_start, &addr_end, protstr) == 3) {
+			if (addr_start == (uintptr_t) addr) {
+				size = addr_end - addr_start;
+				if (protstr[0] == 'r')
+					*prot |= 0x4;
+				if (protstr[1] == 'w')
+					*prot |= 0x2;
+				if (protstr[2] == 'x')
+					*prot |= 0x1;
+				break;
+			}
+		}
+	}
+	fclose(maps);
+	return size;
+}
+
+/*
+ * define sys_xyx to call syscall directly.
+ */
+static int sys_mseal(void *start, size_t len)
+{
+	int sret;
+
+	errno = 0;
+	sret = syscall(__NR_mseal, start, len, 0);
+	return sret;
+}
+
+static int sys_mprotect(void *ptr, size_t size, unsigned long prot)
+{
+	int sret;
+
+	errno = 0;
+	sret = syscall(__NR_mprotect, ptr, size, prot);
+	return sret;
+}
+
+static int sys_mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
+		unsigned long pkey)
+{
+	int sret;
+
+	errno = 0;
+	sret = syscall(__NR_pkey_mprotect, ptr, size, orig_prot, pkey);
+	return sret;
+}
+
+static int sys_munmap(void *ptr, size_t size)
+{
+	int sret;
+
+	errno = 0;
+	sret = syscall(__NR_munmap, ptr, size);
+	return sret;
+}
+
+static int sys_madvise(void *start, size_t len, int types)
+{
+	int sret;
+
+	errno = 0;
+	sret = syscall(__NR_madvise, start, len, types);
+	return sret;
+}
+
+static void *sys_mremap(void *addr, size_t old_len, size_t new_len,
+	unsigned long flags, void *new_addr)
+{
+	void *sret;
+
+	errno = 0;
+	sret = (void *) syscall(__NR_mremap, addr, old_len, new_len, flags, new_addr);
+	return sret;
+}
+
+static int sys_pkey_alloc(unsigned long flags, unsigned long init_val)
+{
+	int ret = syscall(__NR_pkey_alloc, flags, init_val);
+
+	return ret;
+}
+
+static unsigned int __read_pkey_reg(void)
+{
+	unsigned int pkey_reg = 0;
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	unsigned int eax, edx;
+	unsigned int ecx = 0;
+
+	asm volatile(".byte 0x0f,0x01,0xee\n\t"
+			: "=a" (eax), "=d" (edx)
+			: "c" (ecx));
+	pkey_reg = eax;
+#endif
+	return pkey_reg;
+}
+
+static void __write_pkey_reg(u64 pkey_reg)
+{
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	unsigned int eax = pkey_reg;
+	unsigned int ecx = 0;
+	unsigned int edx = 0;
+
+	asm volatile(".byte 0x0f,0x01,0xef\n\t"
+			: : "a" (eax), "c" (ecx), "d" (edx));
+#endif
+}
+
+static unsigned long pkey_bit_position(int pkey)
+{
+	return pkey * PKEY_BITS_PER_PKEY;
+}
+
+static u64 set_pkey_bits(u64 reg, int pkey, u64 flags)
+{
+	unsigned long shift = pkey_bit_position(pkey);
+
+	/* mask out bits from pkey in old value */
+	reg &= ~((u64)PKEY_MASK << shift);
+	/* OR in new bits for pkey */
+	reg |= (flags & PKEY_MASK) << shift;
+	return reg;
+}
+
+static void set_pkey(int pkey, unsigned long pkey_value)
+{
+	u64 new_pkey_reg;
+
+	new_pkey_reg = set_pkey_bits(__read_pkey_reg(), pkey, pkey_value);
+	__write_pkey_reg(new_pkey_reg);
+}
+
+static void setup_single_address(int size, void **ptrOut)
+{
+	void *ptr;
+
+	ptr = mmap(NULL, size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	*ptrOut = ptr;
+}
+
+static void setup_single_address_rw(int size, void **ptrOut)
+{
+	void *ptr;
+	unsigned long mapflags = MAP_ANONYMOUS | MAP_PRIVATE;
+
+	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, mapflags, -1, 0);
+	*ptrOut = ptr;
+}
+
+static int clean_single_address(void *ptr, int size)
+{
+	int ret;
+	ret = munmap(ptr, size);
+	return ret;
+}
+
+static int seal_single_address(void *ptr, int size)
+{
+	int ret;
+	ret = sys_mseal(ptr, size);
+	return ret;
+}
+
+bool seal_support(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+
+	ptr = mmap(NULL, page_size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (ptr == (void *) -1)
+		return false;
+
+	ret = sys_mseal(ptr, page_size);
+	if (ret < 0)
+		return false;
+
+	return true;
+}
+
+bool pkey_supported(void)
+{
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	int pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+
+	if (pkey > 0)
+		return true;
+#endif
+	return false;
+}
+
+static void test_seal_addseal(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_unmapped_start(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* munmap 2 pages from ptr. */
+	ret = sys_munmap(ptr, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mprotect will fail because 2 pages from ptr are unmapped. */
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* mseal will fail because 2 pages from ptr are unmapped. */
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	ret = sys_mseal(ptr + 2 * page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_unmapped_middle(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* munmap 2 pages from ptr + page. */
+	ret = sys_munmap(ptr + page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mprotect will fail, since middle 2 pages are unmapped. */
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* mseal will fail as well. */
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* we still can add seal to the first page and last page*/
+	ret = sys_mseal(ptr, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_mseal(ptr + 3 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_unmapped_end(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* unmap last 2 pages. */
+	ret = sys_munmap(ptr + 2 * page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mprotect will fail since last 2 pages are unmapped. */
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* mseal will fail as well. */
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* The first 2 pages is not sealed, and can add seals */
+	ret = sys_mseal(ptr, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_multiple_vmas(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split the vma into 3. */
+	ret = sys_mprotect(ptr + page_size, 2 * page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mprotect will get applied to all 4 pages - 3 VMAs. */
+	ret = sys_mprotect(ptr, size, PROT_READ);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* use mprotect to split the vma into 3. */
+	ret = sys_mprotect(ptr + page_size, 2 * page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mseal get applied to all 4 pages - 3 VMAs. */
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_split_start(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split at middle */
+	ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal the first page, this will split the VMA */
+	ret = sys_mseal(ptr, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* add seal to the remain 3 pages */
+	ret = sys_mseal(ptr + page_size, 3 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_split_end(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split at middle */
+	ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal the last page */
+	ret = sys_mseal(ptr + 3 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* Adding seals to the first 3 pages */
+	ret = sys_mseal(ptr, 3 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_invalid_input(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(8 * page_size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	ret = clean_single_address(ptr + 4 * page_size, 4 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* invalid flag */
+	ret = syscall(__NR_mseal, ptr, size, 0x20);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* unaligned address */
+	ret = sys_mseal(ptr + 1, 2 * page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* length too big */
+	ret = sys_mseal(ptr, 5 * page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* length overflow */
+	ret = sys_mseal(ptr, UINT64_MAX/page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* start is not in a valid VMA */
+	ret = sys_mseal(ptr - page_size, 5 * page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_zero_length(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	ret = sys_mprotect(ptr, 0, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal 0 length will be OK, same as mprotect */
+	ret = sys_mseal(ptr, 0);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* verify the 4 pages are not sealed by previous call. */
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_zero_address(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int prot;
+
+	/* use mmap to change protection. */
+	ptr = mmap(0, size, PROT_NONE,
+		   MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	FAIL_TEST_IF_FALSE(ptr == 0);
+
+	size = get_vma_size(ptr, &prot);
+	FAIL_TEST_IF_FALSE(size == 4 * page_size);
+
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* verify the 4 pages are sealed by previous call. */
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_twice(void)
+{
+	int ret;
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* apply the same seal will be OK. idempotent. */
+	ret = sys_mseal(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_start_mprotect(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* the first page is sealed. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	/* pages after the first page is not sealed. */
+	ret = sys_mprotect(ptr + page_size, page_size * 3,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_end_mprotect(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr + page_size, 3 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* first page is not sealed */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* last 3 page are sealed */
+	ret = sys_mprotect(ptr + page_size, page_size * 3,
+			PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_unalign_len(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr, page_size * 2 - 1);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* 2 pages are sealed. */
+	ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_mprotect(ptr + page_size * 2, page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_unalign_len_variant_2(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	if (seal) {
+		ret =  seal_single_address(ptr, page_size * 2 + 1);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* 3 pages are sealed. */
+	ret = sys_mprotect(ptr, page_size * 3, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_mprotect(ptr + page_size * 3, page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_two_vma(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split */
+	ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = seal_single_address(ptr, page_size * 4);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_mprotect(ptr + page_size * 2, page_size * 2,
+			PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_two_vma_with_split(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split as two vma. */
+	ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mseal can apply across 2 vma, also split them. */
+	if (seal) {
+		ret = seal_single_address(ptr + page_size, page_size * 2);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* the first page is not sealed. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* the second page is sealed. */
+	ret = sys_mprotect(ptr + page_size, page_size, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	/* the third page is sealed. */
+	ret = sys_mprotect(ptr + 2 * page_size, page_size,
+			PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	/* the fouth page is not sealed. */
+	ret = sys_mprotect(ptr + 3 * page_size, page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_partial_mprotect(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* seal one page. */
+	if (seal) {
+		ret = seal_single_address(ptr, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mprotect first 2 page will fail, since the first page are sealed. */
+	ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_partial_mprotect_tail(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 2 * page_size;
+	int ret;
+	int prot;
+
+	/*
+	 * Check if a partial mseal (that results in two vmas) works correctly.
+	 * It might mprotect the first, but it'll never touch the second (msealed) vma.
+	 */
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr + page_size, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_mprotect(ptr, size, PROT_EXEC);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		FAIL_TEST_IF_FALSE(get_vma_size(ptr + page_size, &prot) > 0);
+		FAIL_TEST_IF_FALSE(prot == 0x4);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+
+static void test_seal_mprotect_two_vma_with_gap(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* use mprotect to split. */
+	ret = sys_mprotect(ptr + 3 * page_size, page_size,
+			PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* use munmap to free two pages in the middle */
+	ret = sys_munmap(ptr + page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* mprotect will fail, because there is a gap in the address. */
+	/* notes, internally mprotect still updated the first page. */
+	ret = sys_mprotect(ptr, 4 * page_size, PROT_READ);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* mseal will fail as well. */
+	ret = sys_mseal(ptr, 4 * page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* the first page is not sealed. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ);
+	FAIL_TEST_IF_FALSE(ret == 0);
+
+	/* the last page is not sealed. */
+	ret = sys_mprotect(ptr + 3 * page_size, page_size, PROT_READ);
+	FAIL_TEST_IF_FALSE(ret == 0);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_split(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal all 4 pages. */
+	if (seal) {
+		ret = sys_mseal(ptr, 4 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mprotect is sealed. */
+	ret = sys_mprotect(ptr, 2 * page_size, PROT_READ);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+
+	ret = sys_mprotect(ptr + 2 * page_size, 2 * page_size, PROT_READ);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mprotect_merge(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split one page. */
+	ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal first two pages. */
+	if (seal) {
+		ret = sys_mseal(ptr, 2 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* 2 pages are sealed. */
+	ret = sys_mprotect(ptr, 2 * page_size, PROT_READ);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	/* last 2 pages are not sealed. */
+	ret = sys_mprotect(ptr + 2 * page_size, 2 * page_size, PROT_READ);
+	FAIL_TEST_IF_FALSE(ret == 0);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_munmap(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* 4 pages are sealed. */
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+/*
+ * allocate 4 pages,
+ * use mprotect to split it as two VMAs
+ * seal the whole range
+ * munmap will fail on both
+ */
+static void test_seal_munmap_two_vma(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect to split */
+	ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_munmap(ptr, page_size * 2);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr + page_size, page_size * 2);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+/*
+ * allocate a VMA with 4 pages.
+ * munmap the middle 2 pages.
+ * seal the whole 4 pages, will fail.
+ * munmap the first page will be OK.
+ * munmap the last page will be OK.
+ */
+static void test_seal_munmap_vma_with_gap(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	ret = sys_munmap(ptr + page_size, page_size * 2);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		/* can't have gap in the middle. */
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(ret < 0);
+	}
+
+	ret = sys_munmap(ptr, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr + page_size * 2, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_munmap_partial_across_vmas(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 2 * page_size;
+	int ret;
+	int prot;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr + page_size, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		FAIL_TEST_IF_FALSE(get_vma_size(ptr + page_size, &prot) > 0);
+		FAIL_TEST_IF_FALSE(prot == 0x4);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_munmap_start_freed(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int prot;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* unmap the first page. */
+	ret = sys_munmap(ptr, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal the last 3 pages. */
+	if (seal) {
+		ret = sys_mseal(ptr + page_size, 3 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* unmap from the first page. */
+	ret = sys_munmap(ptr, size);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret < 0);
+
+		size = get_vma_size(ptr + page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == page_size * 3);
+	} else {
+		/* note: this will be OK, even the first page is */
+		/* already unmapped. */
+		FAIL_TEST_IF_FALSE(!ret);
+
+		size = get_vma_size(ptr + page_size, &prot);
+		FAIL_TEST_IF_FALSE(size == 0);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_munmap_end_freed(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* unmap last page. */
+	ret = sys_munmap(ptr + page_size * 3, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal the first 3 pages. */
+	if (seal) {
+		ret = sys_mseal(ptr, 3 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* unmap all pages. */
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_munmap_middle_freed(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int prot;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* unmap 2 pages in the middle. */
+	ret = sys_munmap(ptr + page_size, page_size * 2);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* seal the first page. */
+	if (seal) {
+		ret = sys_mseal(ptr, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* munmap all 4 pages. */
+	ret = sys_munmap(ptr, size);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret < 0);
+
+		size = get_vma_size(ptr, &prot);
+		FAIL_TEST_IF_FALSE(size == page_size);
+
+		size = get_vma_size(ptr + page_size * 3, &prot);
+		FAIL_TEST_IF_FALSE(size == page_size);
+	} else {
+		FAIL_TEST_IF_FALSE(!ret);
+
+		size = get_vma_size(ptr, &prot);
+		FAIL_TEST_IF_FALSE(size == 0);
+
+		size = get_vma_size(ptr + page_size * 3, &prot);
+		FAIL_TEST_IF_FALSE(size == 0);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_shrink(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* shrink from 4 pages to 2 pages. */
+	ret2 = sys_mremap(ptr, size, 2 * page_size, 0, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == (void *) MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		FAIL_TEST_IF_FALSE(ret2 != (void *) MAP_FAILED);
+
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_expand(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	/* ummap last 2 pages. */
+	ret = sys_munmap(ptr + 2 * page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = sys_mseal(ptr, 2 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* expand from 2 page to 4 pages. */
+	ret2 = sys_mremap(ptr, 2 * page_size, 4 * page_size, 0, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move(bool seal)
+{
+	void *ptr, *newPtr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	setup_single_address(size, &newPtr);
+	FAIL_TEST_IF_FALSE(newPtr != (void *)-1);
+	ret = clean_single_address(newPtr, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* move from ptr to fixed address. */
+	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, newPtr);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		FAIL_TEST_IF_FALSE(ret2 != MAP_FAILED);
+
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_overwrite_prot(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* use mmap to change protection. */
+	ret2 = mmap(ptr, size, PROT_NONE,
+		    MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_expand(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 12 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	/* ummap last 4 pages. */
+	ret = sys_munmap(ptr + 8 * page_size, 4 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = sys_mseal(ptr, 8 * page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* use mmap to expand. */
+	ret2 = mmap(ptr, size, PROT_READ,
+		    MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mmap_shrink(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 12 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* use mmap to shrink. */
+	ret2 = mmap(ptr, 8 * page_size, PROT_READ,
+		    MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == ptr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_shrink_fixed(bool seal)
+{
+	void *ptr;
+	void *newAddr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	setup_single_address(size, &newAddr);
+	FAIL_TEST_IF_FALSE(newAddr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mremap to move and shrink to fixed address */
+	ret2 = sys_mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED,
+			newAddr);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == newAddr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_expand_fixed(bool seal)
+{
+	void *ptr;
+	void *newAddr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(page_size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	setup_single_address(size, &newAddr);
+	FAIL_TEST_IF_FALSE(newAddr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(newAddr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mremap to move and expand to fixed address */
+	ret2 = sys_mremap(ptr, page_size, size, MREMAP_MAYMOVE | MREMAP_FIXED,
+			newAddr);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == newAddr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_fixed(bool seal)
+{
+	void *ptr;
+	void *newAddr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+	setup_single_address(size, &newAddr);
+	FAIL_TEST_IF_FALSE(newAddr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(newAddr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mremap to move to fixed address */
+	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, newAddr);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else
+		FAIL_TEST_IF_FALSE(ret2 == newAddr);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_fixed_zero(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/*
+	 * MREMAP_FIXED can move the mapping to zero address
+	 */
+	ret2 = sys_mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED,
+			0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		FAIL_TEST_IF_FALSE(ret2 == 0);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_dontunmap(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* mremap to move, and don't unmap src addr. */
+	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_DONTUNMAP, 0);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		/* kernel will allocate a new address */
+		FAIL_TEST_IF_FALSE(ret2 != MAP_FAILED);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_mremap_move_dontunmap_anyaddr(bool seal)
+{
+	void *ptr, *ptr2;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	void *ret2;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/*
+	 * The new address is any address that not allocated.
+	 * use allocate/free to similate that.
+	 */
+	setup_single_address(size, &ptr2);
+	FAIL_TEST_IF_FALSE(ptr2 != (void *)-1);
+	ret = sys_munmap(ptr2, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/*
+	 * remap to any address.
+	 */
+	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_DONTUNMAP,
+			(void *) ptr2);
+	if (seal) {
+		FAIL_TEST_IF_FALSE(ret2 == MAP_FAILED);
+		FAIL_TEST_IF_FALSE(errno == EPERM);
+	} else {
+		/* remap success and return ptr2 */
+		FAIL_TEST_IF_FALSE(ret2 ==  ptr2);
+	}
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_merge_and_split(void)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size;
+	int ret;
+	int prot;
+
+	/* (24 RO) */
+	setup_single_address(24 * page_size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	/* use mprotect(NONE) to set out boundary */
+	/* (1 NONE) (22 RO) (1 NONE) */
+	ret = sys_mprotect(ptr, page_size, PROT_NONE);
+	FAIL_TEST_IF_FALSE(!ret);
+	ret = sys_mprotect(ptr + 23 * page_size, page_size, PROT_NONE);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr + page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == 22 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 4);
+
+	/* use mseal to split from beginning */
+	/* (1 NONE) (1 RO_SEAL) (21 RO) (1 NONE) */
+	ret = sys_mseal(ptr + page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr + page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+	size = get_vma_size(ptr + 2 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == 21 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	/* use mseal to split from the end. */
+	/* (1 NONE) (1 RO_SEAL) (20 RO) (1 RO_SEAL) (1 NONE) */
+	ret = sys_mseal(ptr + 22 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr + 22 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+	size = get_vma_size(ptr + 2 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size == 20 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	/* merge with prev. */
+	/* (1 NONE) (2 RO_SEAL) (19 RO) (1 RO_SEAL) (1 NONE) */
+	ret = sys_mseal(ptr + 2 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr +  page_size, &prot);
+	FAIL_TEST_IF_FALSE(size ==  2 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	/* merge with after. */
+	/* (1 NONE) (2 RO_SEAL) (18 RO) (2 RO_SEALS) (1 NONE) */
+	ret = sys_mseal(ptr + 21 * page_size, page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr +  21 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size ==  2 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	/* split and merge from prev */
+	/* (1 NONE) (3 RO_SEAL) (17 RO) (2 RO_SEALS) (1 NONE) */
+	ret = sys_mseal(ptr + 2 * page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr +  1 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size ==  3 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+	ret = sys_munmap(ptr + page_size,  page_size);
+	FAIL_TEST_IF_FALSE(ret < 0);
+	ret = sys_mprotect(ptr + 2 * page_size, page_size,  PROT_NONE);
+	FAIL_TEST_IF_FALSE(ret < 0);
+
+	/* split and merge from next */
+	/* (1 NONE) (3 RO_SEAL) (16 RO) (3 RO_SEALS) (1 NONE) */
+	ret = sys_mseal(ptr + 20 * page_size, 2 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+	size = get_vma_size(ptr +  20 * page_size, &prot);
+	FAIL_TEST_IF_FALSE(size ==  3 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	/* merge from middle of prev and middle of next. */
+	/* (1 NONE) (22 RO_SEAL) (1 NONE) */
+	ret = sys_mseal(ptr + 2 * page_size, 20 * page_size);
+	FAIL_TEST_IF_FALSE(!ret);
+	size = get_vma_size(ptr +  page_size, &prot);
+	FAIL_TEST_IF_FALSE(size ==  22 * page_size);
+	FAIL_TEST_IF_FALSE(prot == 0x4);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_ro_anon_on_rw(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address_rw(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* sealing doesn't take effect on RW memory. */
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* base seal still apply. */
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_ro_anon_on_pkey(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int pkey;
+
+	SKIP_TEST_IF_FALSE(pkey_supported());
+
+	setup_single_address_rw(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	FAIL_TEST_IF_FALSE(pkey > 0);
+
+	ret = sys_mprotect_pkey((void *)ptr, size, PROT_READ | PROT_WRITE, pkey);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* sealing doesn't take effect if PKRU allow write. */
+	set_pkey(pkey, PKEY_UNRESTRICTED);
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	/* sealing will take effect if PKRU deny write. */
+	set_pkey(pkey, PKEY_DISABLE_WRITE);
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	/* base seal still apply. */
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_ro_anon_on_filebacked(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	int fd;
+	unsigned long mapflags = MAP_PRIVATE;
+
+	fd = memfd_create("test", 0);
+	FAIL_TEST_IF_FALSE(fd > 0);
+
+	ret = fallocate(fd, 0, 0, size);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ptr = mmap(NULL, size, PROT_READ, mapflags, fd, 0);
+	FAIL_TEST_IF_FALSE(ptr != MAP_FAILED);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* sealing doesn't apply for file backed mapping. */
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+	close(fd);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_ro_anon_on_shared(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+	unsigned long mapflags = MAP_ANONYMOUS | MAP_SHARED;
+
+	ptr = mmap(NULL, size, PROT_READ, mapflags, -1, 0);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = sys_mseal(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/* sealing doesn't apply for shared mapping. */
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_ro_anon(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+static void test_seal_discard_across_vmas(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 2 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr + page_size, page_size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	ret = sys_madvise(ptr, size, MADV_DONTNEED);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+
+static void test_seal_madvise_nodiscard(bool seal)
+{
+	void *ptr;
+	unsigned long page_size = getpagesize();
+	unsigned long size = 4 * page_size;
+	int ret;
+
+	setup_single_address(size, &ptr);
+	FAIL_TEST_IF_FALSE(ptr != (void *)-1);
+
+	if (seal) {
+		ret = seal_single_address(ptr, size);
+		FAIL_TEST_IF_FALSE(!ret);
+	}
+
+	/*
+	 * Test a random madvise flag like MADV_RANDOM that does not touch page
+	 * contents (and thus should work for msealed VMAs). RANDOM also happens to
+	 * share bits with other discard-ish flags like REMOVE.
+	 */
+	ret = sys_madvise(ptr, size, MADV_RANDOM);
+	FAIL_TEST_IF_FALSE(!ret);
+
+	ret = sys_munmap(ptr, size);
+	if (seal)
+		FAIL_TEST_IF_FALSE(ret < 0);
+	else
+		FAIL_TEST_IF_FALSE(!ret);
+
+	REPORT_TEST_PASS();
+}
+
+int main(void)
+{
+	bool test_seal = seal_support();
+
+	ksft_print_header();
+
+	if (!test_seal)
+		ksft_exit_skip("sealing not supported, check CONFIG_64BIT\n");
+
+	if (!pkey_supported())
+		ksft_print_msg("PKEY not supported\n");
+
+	ksft_set_plan(88);
+
+	test_seal_addseal();
+	test_seal_unmapped_start();
+	test_seal_unmapped_middle();
+	test_seal_unmapped_end();
+	test_seal_multiple_vmas();
+	test_seal_split_start();
+	test_seal_split_end();
+	test_seal_invalid_input();
+	test_seal_zero_length();
+	test_seal_twice();
+
+	test_seal_mprotect(false);
+	test_seal_mprotect(true);
+
+	test_seal_start_mprotect(false);
+	test_seal_start_mprotect(true);
+
+	test_seal_end_mprotect(false);
+	test_seal_end_mprotect(true);
+
+	test_seal_mprotect_unalign_len(false);
+	test_seal_mprotect_unalign_len(true);
+
+	test_seal_mprotect_unalign_len_variant_2(false);
+	test_seal_mprotect_unalign_len_variant_2(true);
+
+	test_seal_mprotect_two_vma(false);
+	test_seal_mprotect_two_vma(true);
+
+	test_seal_mprotect_two_vma_with_split(false);
+	test_seal_mprotect_two_vma_with_split(true);
+
+	test_seal_mprotect_partial_mprotect(false);
+	test_seal_mprotect_partial_mprotect(true);
+
+	test_seal_mprotect_two_vma_with_gap();
+	test_seal_mprotect_two_vma_with_gap();
+
+	test_seal_mprotect_merge(false);
+	test_seal_mprotect_merge(true);
+
+	test_seal_mprotect_split(false);
+	test_seal_mprotect_split(true);
+
+	test_seal_mprotect_partial_mprotect_tail(false);
+	test_seal_mprotect_partial_mprotect_tail(true);
+
+	test_seal_munmap(false);
+	test_seal_munmap(true);
+	test_seal_munmap_two_vma(false);
+	test_seal_munmap_two_vma(true);
+	test_seal_munmap_vma_with_gap(false);
+	test_seal_munmap_vma_with_gap(true);
+	test_seal_munmap_partial_across_vmas(false);
+	test_seal_munmap_partial_across_vmas(true);
+
+	test_munmap_start_freed(false);
+	test_munmap_start_freed(true);
+	test_munmap_middle_freed(false);
+	test_munmap_middle_freed(true);
+	test_munmap_end_freed(false);
+	test_munmap_end_freed(true);
+
+	test_seal_mremap_shrink(false);
+	test_seal_mremap_shrink(true);
+	test_seal_mremap_expand(false);
+	test_seal_mremap_expand(true);
+	test_seal_mremap_move(false);
+	test_seal_mremap_move(true);
+
+	test_seal_mremap_shrink_fixed(false);
+	test_seal_mremap_shrink_fixed(true);
+	test_seal_mremap_expand_fixed(false);
+	test_seal_mremap_expand_fixed(true);
+	test_seal_mremap_move_fixed(false);
+	test_seal_mremap_move_fixed(true);
+	test_seal_mremap_move_dontunmap(false);
+	test_seal_mremap_move_dontunmap(true);
+	test_seal_mremap_move_fixed_zero(false);
+	test_seal_mremap_move_fixed_zero(true);
+	test_seal_mremap_move_dontunmap_anyaddr(false);
+	test_seal_mremap_move_dontunmap_anyaddr(true);
+	test_seal_madvise_nodiscard(false);
+	test_seal_madvise_nodiscard(true);
+	test_seal_discard_ro_anon(false);
+	test_seal_discard_ro_anon(true);
+	test_seal_discard_across_vmas(false);
+	test_seal_discard_across_vmas(true);
+	test_seal_discard_ro_anon_on_rw(false);
+	test_seal_discard_ro_anon_on_rw(true);
+	test_seal_discard_ro_anon_on_shared(false);
+	test_seal_discard_ro_anon_on_shared(true);
+	test_seal_discard_ro_anon_on_filebacked(false);
+	test_seal_discard_ro_anon_on_filebacked(true);
+	test_seal_mmap_overwrite_prot(false);
+	test_seal_mmap_overwrite_prot(true);
+	test_seal_mmap_expand(false);
+	test_seal_mmap_expand(true);
+	test_seal_mmap_shrink(false);
+	test_seal_mmap_shrink(true);
+
+	test_seal_merge_and_split();
+	test_seal_zero_address();
+
+	test_seal_discard_ro_anon_on_pkey(false);
+	test_seal_discard_ro_anon_on_pkey(true);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/on-fault-limit.c b/tools/testing/selftests/mm/on-fault-limit.c
new file mode 100644
index 000000000000..fc4117453c84
--- /dev/null
+++ b/tools/testing/selftests/mm/on-fault-limit.c
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <sys/mman.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include "kselftest.h"
+
+static void test_limit(void)
+{
+	struct rlimit lims;
+	void *map;
+
+	if (getrlimit(RLIMIT_MEMLOCK, &lims))
+		ksft_exit_fail_msg("getrlimit: %s\n", strerror(errno));
+
+	if (mlockall(MCL_ONFAULT | MCL_FUTURE))
+		ksft_exit_fail_msg("mlockall: %s\n", strerror(errno));
+
+	map = mmap(NULL, 2 * lims.rlim_max, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, -1, 0);
+
+	ksft_test_result(map == MAP_FAILED, "The map failed respecting mlock limits\n");
+
+	if (map != MAP_FAILED)
+		munmap(map, 2 * lims.rlim_max);
+	munlockall();
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	if (!getuid())
+		ksft_test_result_skip("The test must be run from a normal user\n");
+	else
+		test_limit();
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/page_frag/Makefile b/tools/testing/selftests/mm/page_frag/Makefile
new file mode 100644
index 000000000000..8c8bb39ffa28
--- /dev/null
+++ b/tools/testing/selftests/mm/page_frag/Makefile
@@ -0,0 +1,18 @@
+PAGE_FRAG_TEST_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
+KDIR ?= /lib/modules/$(shell uname -r)/build
+
+ifeq ($(V),1)
+Q =
+else
+Q = @
+endif
+
+MODULES = page_frag_test.ko
+
+obj-m += page_frag_test.o
+
+all:
+	+$(Q)make -C $(KDIR) M=$(PAGE_FRAG_TEST_DIR) modules
+
+clean:
+	+$(Q)make -C $(KDIR) M=$(PAGE_FRAG_TEST_DIR) clean
diff --git a/tools/testing/selftests/mm/page_frag/page_frag_test.c b/tools/testing/selftests/mm/page_frag/page_frag_test.c
new file mode 100644
index 000000000000..e806c1866e36
--- /dev/null
+++ b/tools/testing/selftests/mm/page_frag/page_frag_test.c
@@ -0,0 +1,198 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Test module for page_frag cache
+ *
+ * Copyright (C) 2024 Yunsheng Lin <linyunsheng@huawei.com>
+ */
+
+#include <linux/module.h>
+#include <linux/cpumask.h>
+#include <linux/completion.h>
+#include <linux/ptr_ring.h>
+#include <linux/kthread.h>
+#include <linux/page_frag_cache.h>
+
+#define TEST_FAILED_PREFIX	"page_frag_test failed: "
+
+static struct ptr_ring ptr_ring;
+static int nr_objs = 512;
+static atomic_t nthreads;
+static struct completion wait;
+static struct page_frag_cache test_nc;
+static int test_popped;
+static int test_pushed;
+static bool force_exit;
+
+static int nr_test = 2000000;
+module_param(nr_test, int, 0);
+MODULE_PARM_DESC(nr_test, "number of iterations to test");
+
+static bool test_align;
+module_param(test_align, bool, 0);
+MODULE_PARM_DESC(test_align, "use align API for testing");
+
+static int test_alloc_len = 2048;
+module_param(test_alloc_len, int, 0);
+MODULE_PARM_DESC(test_alloc_len, "alloc len for testing");
+
+static int test_push_cpu;
+module_param(test_push_cpu, int, 0);
+MODULE_PARM_DESC(test_push_cpu, "test cpu for pushing fragment");
+
+static int test_pop_cpu;
+module_param(test_pop_cpu, int, 0);
+MODULE_PARM_DESC(test_pop_cpu, "test cpu for popping fragment");
+
+static int page_frag_pop_thread(void *arg)
+{
+	struct ptr_ring *ring = arg;
+
+	pr_info("page_frag pop test thread begins on cpu %d\n",
+		smp_processor_id());
+
+	while (test_popped < nr_test) {
+		void *obj = __ptr_ring_consume(ring);
+
+		if (obj) {
+			test_popped++;
+			page_frag_free(obj);
+		} else {
+			if (force_exit)
+				break;
+
+			cond_resched();
+		}
+	}
+
+	if (atomic_dec_and_test(&nthreads))
+		complete(&wait);
+
+	pr_info("page_frag pop test thread exits on cpu %d\n",
+		smp_processor_id());
+
+	return 0;
+}
+
+static int page_frag_push_thread(void *arg)
+{
+	struct ptr_ring *ring = arg;
+
+	pr_info("page_frag push test thread begins on cpu %d\n",
+		smp_processor_id());
+
+	while (test_pushed < nr_test && !force_exit) {
+		void *va;
+		int ret;
+
+		if (test_align) {
+			va = page_frag_alloc_align(&test_nc, test_alloc_len,
+						   GFP_KERNEL, SMP_CACHE_BYTES);
+
+			if ((unsigned long)va & (SMP_CACHE_BYTES - 1)) {
+				force_exit = true;
+				WARN_ONCE(true, TEST_FAILED_PREFIX "unaligned va returned\n");
+			}
+		} else {
+			va = page_frag_alloc(&test_nc, test_alloc_len, GFP_KERNEL);
+		}
+
+		if (!va)
+			continue;
+
+		ret = __ptr_ring_produce(ring, va);
+		if (ret) {
+			page_frag_free(va);
+			cond_resched();
+		} else {
+			test_pushed++;
+		}
+	}
+
+	pr_info("page_frag push test thread exits on cpu %d\n",
+		smp_processor_id());
+
+	if (atomic_dec_and_test(&nthreads))
+		complete(&wait);
+
+	return 0;
+}
+
+static int __init page_frag_test_init(void)
+{
+	struct task_struct *tsk_push, *tsk_pop;
+	int last_pushed = 0, last_popped = 0;
+	ktime_t start;
+	u64 duration;
+	int ret;
+
+	page_frag_cache_init(&test_nc);
+	atomic_set(&nthreads, 2);
+	init_completion(&wait);
+
+	if (test_alloc_len > PAGE_SIZE || test_alloc_len <= 0 ||
+	    !cpu_active(test_push_cpu) || !cpu_active(test_pop_cpu))
+		return -EINVAL;
+
+	ret = ptr_ring_init(&ptr_ring, nr_objs, GFP_KERNEL);
+	if (ret)
+		return ret;
+
+	tsk_push = kthread_create_on_cpu(page_frag_push_thread, &ptr_ring,
+					 test_push_cpu, "page_frag_push");
+	if (IS_ERR(tsk_push))
+		return PTR_ERR(tsk_push);
+
+	tsk_pop = kthread_create_on_cpu(page_frag_pop_thread, &ptr_ring,
+					test_pop_cpu, "page_frag_pop");
+	if (IS_ERR(tsk_pop)) {
+		kthread_stop(tsk_push);
+		return PTR_ERR(tsk_pop);
+	}
+
+	start = ktime_get();
+	wake_up_process(tsk_push);
+	wake_up_process(tsk_pop);
+
+	pr_info("waiting for test to complete\n");
+
+	while (!wait_for_completion_timeout(&wait, msecs_to_jiffies(10000))) {
+		/* exit if there is no progress for push or pop size */
+		if (last_pushed == test_pushed || last_popped == test_popped) {
+			WARN_ONCE(true, TEST_FAILED_PREFIX "no progress\n");
+			force_exit = true;
+			continue;
+		}
+
+		last_pushed = test_pushed;
+		last_popped = test_popped;
+		pr_info("page_frag_test progress: pushed = %d, popped = %d\n",
+			test_pushed, test_popped);
+	}
+
+	if (force_exit) {
+		pr_err(TEST_FAILED_PREFIX "exit with error\n");
+		goto out;
+	}
+
+	duration = (u64)ktime_us_delta(ktime_get(), start);
+	pr_info("%d of iterations for %s testing took: %lluus\n", nr_test,
+		test_align ? "aligned" : "non-aligned", duration);
+
+out:
+	ptr_ring_cleanup(&ptr_ring, NULL);
+	page_frag_cache_drain(&test_nc);
+
+	return -EAGAIN;
+}
+
+static void __exit page_frag_test_exit(void)
+{
+}
+
+module_init(page_frag_test_init);
+module_exit(page_frag_test_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Yunsheng Lin <linyunsheng@huawei.com>");
+MODULE_DESCRIPTION("Test module for page_frag");
diff --git a/tools/testing/selftests/mm/pagemap_ioctl.c b/tools/testing/selftests/mm/pagemap_ioctl.c
new file mode 100644
index 000000000000..2cb5441f29c7
--- /dev/null
+++ b/tools/testing/selftests/mm/pagemap_ioctl.c
@@ -0,0 +1,1738 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <errno.h>
+#include <malloc.h>
+#include "vm_util.h"
+#include "kselftest.h"
+#include <linux/types.h>
+#include <linux/memfd.h>
+#include <linux/userfaultfd.h>
+#include <linux/fs.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <math.h>
+#include <asm/unistd.h>
+#include <pthread.h>
+#include <sys/resource.h>
+#include <assert.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+#define PAGEMAP_BITS_ALL		(PAGE_IS_WPALLOWED | PAGE_IS_WRITTEN |	\
+					 PAGE_IS_FILE | PAGE_IS_PRESENT |	\
+					 PAGE_IS_SWAPPED | PAGE_IS_PFNZERO |	\
+					 PAGE_IS_HUGE)
+#define PAGEMAP_NON_WRITTEN_BITS	(PAGE_IS_WPALLOWED | PAGE_IS_FILE |	\
+					 PAGE_IS_PRESENT | PAGE_IS_SWAPPED |	\
+					 PAGE_IS_PFNZERO | PAGE_IS_HUGE)
+
+#define TEST_ITERATIONS 100
+#define PAGEMAP "/proc/self/pagemap"
+int pagemap_fd;
+int uffd;
+size_t page_size;
+size_t hpage_size;
+const char *progname;
+
+#define LEN(region)	((region.end - region.start)/page_size)
+
+static long pagemap_ioctl(void *start, int len, void *vec, int vec_len, int flag,
+			  int max_pages, long required_mask, long anyof_mask, long excluded_mask,
+			  long return_mask)
+{
+	struct pm_scan_arg arg;
+
+	arg.start = (uintptr_t)start;
+	arg.end = (uintptr_t)(start + len);
+	arg.vec = (uintptr_t)vec;
+	arg.vec_len = vec_len;
+	arg.flags = flag;
+	arg.size = sizeof(struct pm_scan_arg);
+	arg.max_pages = max_pages;
+	arg.category_mask = required_mask;
+	arg.category_anyof_mask = anyof_mask;
+	arg.category_inverted = excluded_mask;
+	arg.return_mask = return_mask;
+
+	return ioctl(pagemap_fd, PAGEMAP_SCAN, &arg);
+}
+
+static long pagemap_ioc(void *start, int len, void *vec, int vec_len, int flag,
+			int max_pages, long required_mask, long anyof_mask, long excluded_mask,
+			long return_mask, long *walk_end)
+{
+	struct pm_scan_arg arg;
+	int ret;
+
+	arg.start = (uintptr_t)start;
+	arg.end = (uintptr_t)(start + len);
+	arg.vec = (uintptr_t)vec;
+	arg.vec_len = vec_len;
+	arg.flags = flag;
+	arg.size = sizeof(struct pm_scan_arg);
+	arg.max_pages = max_pages;
+	arg.category_mask = required_mask;
+	arg.category_anyof_mask = anyof_mask;
+	arg.category_inverted = excluded_mask;
+	arg.return_mask = return_mask;
+
+	ret = ioctl(pagemap_fd, PAGEMAP_SCAN, &arg);
+
+	if (walk_end)
+		*walk_end = arg.walk_end;
+
+	return ret;
+}
+
+
+int init_uffd(void)
+{
+	struct uffdio_api uffdio_api;
+
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK | UFFD_USER_MODE_ONLY);
+	if (uffd == -1)
+		return uffd;
+
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = UFFD_FEATURE_WP_UNPOPULATED | UFFD_FEATURE_WP_ASYNC |
+			      UFFD_FEATURE_WP_HUGETLBFS_SHMEM;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api))
+		return -1;
+
+	if (!(uffdio_api.api & UFFDIO_REGISTER_MODE_WP) ||
+	    !(uffdio_api.features & UFFD_FEATURE_WP_UNPOPULATED) ||
+	    !(uffdio_api.features & UFFD_FEATURE_WP_ASYNC) ||
+	    !(uffdio_api.features & UFFD_FEATURE_WP_HUGETLBFS_SHMEM))
+		return -1;
+
+	return 0;
+}
+
+int wp_init(void *lpBaseAddress, long dwRegionSize)
+{
+	struct uffdio_register uffdio_register;
+	struct uffdio_writeprotect wp;
+
+	uffdio_register.range.start = (unsigned long)lpBaseAddress;
+	uffdio_register.range.len = dwRegionSize;
+	uffdio_register.mode = UFFDIO_REGISTER_MODE_WP;
+	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register))
+		ksft_exit_fail_msg("ioctl(UFFDIO_REGISTER) %d %s\n", errno, strerror(errno));
+
+	if (!(uffdio_register.ioctls & UFFDIO_WRITEPROTECT))
+		ksft_exit_fail_msg("ioctl set is incorrect\n");
+
+	wp.range.start = (unsigned long)lpBaseAddress;
+	wp.range.len = dwRegionSize;
+	wp.mode = UFFDIO_WRITEPROTECT_MODE_WP;
+
+	if (ioctl(uffd, UFFDIO_WRITEPROTECT, &wp))
+		ksft_exit_fail_msg("ioctl(UFFDIO_WRITEPROTECT)\n");
+
+	return 0;
+}
+
+int wp_free(void *lpBaseAddress, long dwRegionSize)
+{
+	struct uffdio_register uffdio_register;
+
+	uffdio_register.range.start = (unsigned long)lpBaseAddress;
+	uffdio_register.range.len = dwRegionSize;
+	uffdio_register.mode = UFFDIO_REGISTER_MODE_WP;
+	if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range))
+		ksft_exit_fail_msg("ioctl unregister failure\n");
+	return 0;
+}
+
+int wp_addr_range(void *lpBaseAddress, int dwRegionSize)
+{
+	if (pagemap_ioctl(lpBaseAddress, dwRegionSize, NULL, 0,
+			  PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", 1, errno, strerror(errno));
+
+	return 0;
+}
+
+void *gethugetlb_mem(int size, int *shmid)
+{
+	char *mem;
+
+	if (shmid) {
+		*shmid = shmget(2, size, SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
+		if (*shmid < 0)
+			return NULL;
+
+		mem = shmat(*shmid, 0, 0);
+		if (mem == (char *)-1) {
+			shmctl(*shmid, IPC_RMID, NULL);
+			ksft_exit_fail_msg("Shared memory attach failure\n");
+		}
+	} else {
+		mem = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			   MAP_ANONYMOUS | MAP_HUGETLB | MAP_PRIVATE, -1, 0);
+		if (mem == MAP_FAILED)
+			return NULL;
+	}
+
+	return mem;
+}
+
+int userfaultfd_tests(void)
+{
+	long mem_size, vec_size, written, num_pages = 16;
+	char *mem, *vec;
+
+	mem_size = num_pages * page_size;
+	mem = mmap(NULL, mem_size, PROT_NONE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+
+	/* Change protection of pages differently */
+	mprotect(mem, mem_size/8, PROT_READ|PROT_WRITE);
+	mprotect(mem + 1 * mem_size/8, mem_size/8, PROT_READ);
+	mprotect(mem + 2 * mem_size/8, mem_size/8, PROT_READ|PROT_WRITE);
+	mprotect(mem + 3 * mem_size/8, mem_size/8, PROT_READ);
+	mprotect(mem + 4 * mem_size/8, mem_size/8, PROT_READ|PROT_WRITE);
+	mprotect(mem + 5 * mem_size/8, mem_size/8, PROT_NONE);
+	mprotect(mem + 6 * mem_size/8, mem_size/8, PROT_READ|PROT_WRITE);
+	mprotect(mem + 7 * mem_size/8, mem_size/8, PROT_READ);
+
+	wp_addr_range(mem + (mem_size/16), mem_size - 2 * (mem_size/8));
+	wp_addr_range(mem, mem_size);
+
+	vec_size = mem_size/page_size;
+	vec = calloc(vec_size, sizeof(struct page_region));
+
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				vec_size - 2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 0, "%s all new pages must not be written (dirty)\n", __func__);
+
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+	free(vec);
+	return 0;
+}
+
+int get_reads(struct page_region *vec, int vec_size)
+{
+	int i, sum = 0;
+
+	for (i = 0; i < vec_size; i++)
+		sum += LEN(vec[i]);
+
+	return sum;
+}
+
+int sanity_tests_sd(void)
+{
+	unsigned long long mem_size, vec_size, i, total_pages = 0;
+	long ret, ret2, ret3;
+	int num_pages = 1000;
+	int total_writes, total_reads, reads, count;
+	struct page_region *vec, *vec2;
+	char *mem, *m[2];
+	long walk_end;
+
+	vec_size = num_pages/2;
+	mem_size = num_pages * page_size;
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	if (!vec)
+		ksft_exit_fail_msg("error nomem\n");
+
+	vec2 = calloc(vec_size, sizeof(struct page_region));
+	if (!vec2)
+		ksft_exit_fail_msg("error nomem\n");
+
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	/* 1. wrong operation */
+	ksft_test_result(pagemap_ioctl(mem, 0, vec, vec_size, 0,
+				       0, PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) == 0,
+			 "%s Zero range size is valid\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, NULL, vec_size, 0,
+				       0, PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) < 0,
+			 "%s output buffer must be specified with size\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, 0, 0,
+				       0, PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) == 0,
+			 "%s output buffer can be 0\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, 0, 0, 0,
+				       0, PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) == 0,
+			 "%s output buffer can be 0\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, -1,
+				       0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) < 0,
+			 "%s wrong flag specified\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size,
+				       PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC | 0xFF,
+				       0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) < 0,
+			 "%s flag has extra bits specified\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0,
+				       0, 0, 0, 0, PAGE_IS_WRITTEN) >= 0,
+			 "%s no selection mask is specified\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0,
+				       0, PAGE_IS_WRITTEN, PAGE_IS_WRITTEN, 0, 0) == 0,
+			 "%s no return mask is specified\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0,
+				       0, PAGE_IS_WRITTEN, 0, 0, 0x1000) < 0,
+			 "%s wrong return mask specified\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size,
+				       PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				       0, 0xFFF, PAGE_IS_WRITTEN, 0, PAGE_IS_WRITTEN) < 0,
+			 "%s mixture of correct and wrong flag\n", __func__);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size,
+				       PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				       0, 0, 0, PAGEMAP_BITS_ALL, PAGE_IS_WRITTEN) >= 0,
+			 "%s PAGEMAP_BITS_ALL can be specified with PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC\n",
+			 __func__);
+
+	/* 2. Clear area with larger vec size */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC, 0,
+			    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	ksft_test_result(ret >= 0, "%s Clear area with larger vec size\n", __func__);
+
+	/* 3. Repeated pattern of written and non-written pages */
+	for (i = 0; i < mem_size; i += 2 * page_size)
+		mem[i]++;
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0, PAGE_IS_WRITTEN, 0,
+			    0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result((unsigned long long)ret == mem_size/(page_size * 2),
+			 "%s Repeated pattern of written and non-written pages\n", __func__);
+
+	/* 4. Repeated pattern of written and non-written pages in parts */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    num_pages/2 - 2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	ret2 = pagemap_ioctl(mem, mem_size, vec, 2, 0, 0, PAGE_IS_WRITTEN, 0, 0,
+			     PAGE_IS_WRITTEN);
+	if (ret2 < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret2, errno, strerror(errno));
+
+	ret3 = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			     PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			     0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret3 < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret3, errno, strerror(errno));
+
+	ksft_test_result((ret + ret3) == num_pages/2 && ret2 == 2,
+			 "%s Repeated pattern of written and non-written pages in parts %ld %ld %ld\n",
+			 __func__, ret, ret3, ret2);
+
+	/* 5. Repeated pattern of written and non-written pages max_pages */
+	for (i = 0; i < mem_size; i += 2 * page_size)
+		mem[i]++;
+	mem[(mem_size/page_size - 1) * page_size]++;
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    num_pages/2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	ret2 = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			     PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			     0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret2 < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret2, errno, strerror(errno));
+
+	ksft_test_result(ret == num_pages/2 && ret2 == 1,
+			 "%s Repeated pattern of written and non-written pages max_pages\n",
+			 __func__);
+
+	/* 6. only get 2 dirty pages and clear them as well */
+	vec_size = mem_size/page_size;
+	memset(mem, -1, mem_size);
+
+	/* get and clear second and third pages */
+	ret = pagemap_ioctl(mem + page_size, 2 * page_size, vec, 1,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	ret2 = pagemap_ioctl(mem, mem_size, vec2, vec_size, 0, 0,
+			      PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret2 < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret2, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec[0]) == 2 &&
+			 vec[0].start == (uintptr_t)(mem + page_size) &&
+			 ret2 == 2 && LEN(vec2[0]) == 1 && vec2[0].start == (uintptr_t)mem &&
+			 LEN(vec2[1]) == vec_size - 3 &&
+			 vec2[1].start == (uintptr_t)(mem + 3 * page_size),
+			 "%s only get 2 written pages and clear them as well\n", __func__);
+
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 7. Two regions */
+	m[0] = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (m[0] == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	m[1] = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (m[1] == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(m[0], mem_size);
+	wp_init(m[1], mem_size);
+	wp_addr_range(m[0], mem_size);
+	wp_addr_range(m[1], mem_size);
+
+	memset(m[0], 'a', mem_size);
+	memset(m[1], 'b', mem_size);
+
+	wp_addr_range(m[0], mem_size);
+
+	ret = pagemap_ioctl(m[1], mem_size, vec, 1, 0, 0, PAGE_IS_WRITTEN, 0, 0,
+			    PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec[0]) == mem_size/page_size,
+			 "%s Two regions\n", __func__);
+
+	wp_free(m[0], mem_size);
+	wp_free(m[1], mem_size);
+	munmap(m[0], mem_size);
+	munmap(m[1], mem_size);
+
+	free(vec);
+	free(vec2);
+
+	/* 8. Smaller vec */
+	mem_size = 1050 * page_size;
+	vec_size = mem_size/(page_size*2);
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	if (!vec)
+		ksft_exit_fail_msg("error nomem\n");
+
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC, 0,
+			    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	for (i = 0; i < mem_size/page_size; i += 2)
+		mem[i * page_size]++;
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    mem_size/(page_size*5), PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	total_pages += ret;
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    mem_size/(page_size*5), PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	total_pages += ret;
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			    mem_size/(page_size*5), PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	total_pages += ret;
+
+	ksft_test_result(total_pages == mem_size/(page_size*2), "%s Smaller max_pages\n", __func__);
+
+	free(vec);
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+	total_pages = 0;
+
+	/* 9. Smaller vec */
+	mem_size = 10000 * page_size;
+	vec_size = 50;
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	if (!vec)
+		ksft_exit_fail_msg("error nomem\n");
+
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	for (count = 0; count < TEST_ITERATIONS; count++) {
+		total_writes = total_reads = 0;
+		walk_end = (long)mem;
+
+		for (i = 0; i < mem_size; i += page_size) {
+			if (rand() % 2) {
+				mem[i]++;
+				total_writes++;
+			}
+		}
+
+		while (total_reads < total_writes) {
+			ret = pagemap_ioc((void *)walk_end, mem_size-(walk_end - (long)mem), vec,
+					  vec_size, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+					  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+			if (ret < 0)
+				ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+			if ((unsigned long)ret > vec_size)
+				break;
+
+			reads = get_reads(vec, ret);
+			total_reads += reads;
+		}
+
+		if (total_reads != total_writes)
+			break;
+	}
+
+	ksft_test_result(count == TEST_ITERATIONS, "Smaller vec\n");
+
+	free(vec);
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 10. Walk_end tester */
+	vec_size = 1000;
+	mem_size = vec_size * page_size;
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	if (!vec)
+		ksft_exit_fail_msg("error nomem\n");
+
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	memset(mem, 0, mem_size);
+
+	ret = pagemap_ioc(mem, 0, vec, vec_size, 0,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 0 && walk_end == (long)mem,
+			 "Walk_end: Same start and end address\n");
+
+	ret = pagemap_ioc(mem, 0, vec, vec_size, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 0 && walk_end == (long)mem,
+			 "Walk_end: Same start and end with WP\n");
+
+	ret = pagemap_ioc(mem, 0, vec, 0, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 0 && walk_end == (long)mem,
+			 "Walk_end: Same start and end with 0 output buffer\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + mem_size),
+			 "Walk_end: Big vec\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, 1, 0,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + mem_size),
+			 "Walk_end: vec of minimum length\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, 1, 0,
+			  vec_size, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + mem_size),
+			 "Walk_end: Max pages specified\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  vec_size/2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + mem_size/2),
+			 "Walk_end: Half max pages\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  1, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + page_size),
+			 "Walk_end: 1 max page\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  -1, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + mem_size),
+			 "Walk_end: max pages\n");
+
+	wp_addr_range(mem, mem_size);
+	for (i = 0; i < mem_size; i += 2 * page_size)
+		mem[i]++;
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result((unsigned long)ret == vec_size/2 && walk_end == (long)(mem + mem_size),
+			 "Walk_end sparse: Big vec\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, 1, 0,
+			  0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + page_size * 2),
+			 "Walk_end sparse: vec of minimum length\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, 1, 0,
+			  vec_size, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + page_size * 2),
+			 "Walk_end sparse: Max pages specified\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size/2, 0,
+			  vec_size, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result((unsigned long)ret == vec_size/2 && walk_end == (long)(mem + mem_size),
+			 "Walk_end sparse: Max pages specified\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  vec_size, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result((unsigned long)ret == vec_size/2 && walk_end == (long)(mem + mem_size),
+			 "Walk_end sparse: Max pages specified\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  vec_size/2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result((unsigned long)ret == vec_size/2 && walk_end == (long)(mem + mem_size),
+			 "Walk_endsparse : Half max pages\n");
+
+	ret = pagemap_ioc(mem, mem_size, vec, vec_size, 0,
+			  1, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN, &walk_end);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+	ksft_test_result(ret == 1 && walk_end == (long)(mem + page_size * 2),
+			 "Walk_end: 1 max page\n");
+
+	free(vec);
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	return 0;
+}
+
+int base_tests(char *prefix, char *mem, unsigned long long mem_size, int skip)
+{
+	unsigned long long vec_size;
+	int written;
+	struct page_region *vec, *vec2;
+
+	if (skip) {
+		ksft_test_result_skip("%s all new pages must not be written (dirty)\n", prefix);
+		ksft_test_result_skip("%s all pages must be written (dirty)\n", prefix);
+		ksft_test_result_skip("%s all pages dirty other than first and the last one\n",
+				      prefix);
+		ksft_test_result_skip("%s PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC\n", prefix);
+		ksft_test_result_skip("%s only middle page dirty\n", prefix);
+		ksft_test_result_skip("%s only two middle pages dirty\n", prefix);
+		return 0;
+	}
+
+	vec_size = mem_size/page_size;
+	vec = calloc(vec_size, sizeof(struct page_region));
+	vec2 = calloc(vec_size, sizeof(struct page_region));
+
+	/* 1. all new pages must be not be written (dirty) */
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				vec_size - 2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 0, "%s all new pages must not be written (dirty)\n", prefix);
+
+	/* 2. all pages must be written */
+	memset(mem, -1, mem_size);
+
+	written = pagemap_ioctl(mem, mem_size, vec, 1, 0, 0, PAGE_IS_WRITTEN, 0, 0,
+			      PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 1 && LEN(vec[0]) == mem_size/page_size,
+			 "%s all pages must be written (dirty)\n", prefix);
+
+	/* 3. all pages dirty other than first and the last one */
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	memset(mem + page_size, 0, mem_size - (2 * page_size));
+
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 1 && LEN(vec[0]) >= vec_size - 2 && LEN(vec[0]) <= vec_size,
+			 "%s all pages dirty other than first and the last one\n", prefix);
+
+	written = pagemap_ioctl(mem, mem_size, vec, 1, 0, 0,
+				PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 0,
+			 "%s PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC\n", prefix);
+
+	/* 4. only middle page dirty */
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	mem[vec_size/2 * page_size]++;
+
+	written = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0, PAGE_IS_WRITTEN,
+				0, 0, PAGE_IS_WRITTEN);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 1 && LEN(vec[0]) >= 1,
+			 "%s only middle page dirty\n", prefix);
+
+	/* 5. only two middle pages dirty and walk over only middle pages */
+	written = pagemap_ioctl(mem, mem_size, vec, 1, PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN | PAGE_IS_HUGE);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	mem[vec_size/2 * page_size]++;
+	mem[(vec_size/2 + 1) * page_size]++;
+
+	written = pagemap_ioctl(&mem[vec_size/2 * page_size], 2 * page_size, vec, 1, 0,
+				0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN | PAGE_IS_HUGE);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written == 1 && vec[0].start == (uintptr_t)(&mem[vec_size/2 * page_size])
+			 && LEN(vec[0]) == 2,
+			 "%s only two middle pages dirty\n", prefix);
+
+	free(vec);
+	free(vec2);
+	return 0;
+}
+
+void *gethugepage(int map_size)
+{
+	int ret;
+	char *map;
+
+	map = memalign(hpage_size, map_size);
+	if (!map)
+		ksft_exit_fail_msg("memalign failed %d %s\n", errno, strerror(errno));
+
+	ret = madvise(map, map_size, MADV_HUGEPAGE);
+	if (ret)
+		return NULL;
+
+	memset(map, 0, map_size);
+
+	return map;
+}
+
+int hpage_unit_tests(void)
+{
+	char *map;
+	int ret, ret2;
+	size_t num_pages = 10;
+	unsigned long long map_size = hpage_size * num_pages;
+	unsigned long long vec_size = map_size/page_size;
+	struct page_region *vec, *vec2;
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	vec2 = calloc(vec_size, sizeof(struct page_region));
+	if (!vec || !vec2)
+		ksft_exit_fail_msg("malloc failed\n");
+
+	map = gethugepage(map_size);
+	if (map) {
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+
+		/* 1. all new huge page must not be written (dirty) */
+		ret = pagemap_ioctl(map, map_size, vec, vec_size,
+				    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 0, "%s all new huge page must not be written (dirty)\n",
+				 __func__);
+
+		/* 2. all the huge page must not be written */
+		ret = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 0, "%s all the huge page must not be written\n", __func__);
+
+		/* 3. all the huge page must be written and clear dirty as well */
+		memset(map, -1, map_size);
+		ret = pagemap_ioctl(map, map_size, vec, vec_size,
+				    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				    0, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && vec[0].start == (uintptr_t)map &&
+				 LEN(vec[0]) == vec_size && vec[0].categories == PAGE_IS_WRITTEN,
+				 "%s all the huge page must be written and clear\n", __func__);
+
+		/* 4. only middle page written */
+		wp_free(map, map_size);
+		free(map);
+		map = gethugepage(map_size);
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+		map[vec_size/2 * page_size]++;
+
+		ret = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec[0]) > 0,
+				 "%s only middle page written\n", __func__);
+
+		wp_free(map, map_size);
+		free(map);
+	} else {
+		ksft_test_result_skip("%s all new huge page must be written\n", __func__);
+		ksft_test_result_skip("%s all the huge page must not be written\n", __func__);
+		ksft_test_result_skip("%s all the huge page must be written and clear\n", __func__);
+		ksft_test_result_skip("%s only middle page written\n", __func__);
+	}
+
+	/* 5. clear first half of huge page */
+	map = gethugepage(map_size);
+	if (map) {
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+
+		memset(map, 0, map_size);
+
+		wp_addr_range(map, map_size/2);
+
+		ret = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec[0]) == vec_size/2 &&
+				 vec[0].start == (uintptr_t)(map + map_size/2),
+				 "%s clear first half of huge page\n", __func__);
+		wp_free(map, map_size);
+		free(map);
+	} else {
+		ksft_test_result_skip("%s clear first half of huge page\n", __func__);
+	}
+
+	/* 6. clear first half of huge page with limited buffer */
+	map = gethugepage(map_size);
+	if (map) {
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+
+		memset(map, 0, map_size);
+
+		ret = pagemap_ioctl(map, map_size, vec, vec_size,
+				    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				    vec_size/2, PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ret = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec[0]) == vec_size/2 &&
+				 vec[0].start == (uintptr_t)(map + map_size/2),
+				 "%s clear first half of huge page with limited buffer\n",
+				 __func__);
+		wp_free(map, map_size);
+		free(map);
+	} else {
+		ksft_test_result_skip("%s clear first half of huge page with limited buffer\n",
+				      __func__);
+	}
+
+	/* 7. clear second half of huge page */
+	map = gethugepage(map_size);
+	if (map) {
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+
+		memset(map, -1, map_size);
+
+		ret = pagemap_ioctl(map + map_size/2, map_size/2, vec, vec_size,
+				    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC, vec_size/2,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ret = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec[0]) == vec_size/2,
+				 "%s clear second half huge page\n", __func__);
+		wp_free(map, map_size);
+		free(map);
+	} else {
+		ksft_test_result_skip("%s clear second half huge page\n", __func__);
+	}
+
+	/* 8. get half huge page */
+	map = gethugepage(map_size);
+	if (map) {
+		wp_init(map, map_size);
+		wp_addr_range(map, map_size);
+
+		memset(map, -1, map_size);
+		usleep(100);
+
+		ret = pagemap_ioctl(map, map_size, vec, 1,
+				    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				    hpage_size/(2*page_size), PAGE_IS_WRITTEN, 0, 0,
+				    PAGE_IS_WRITTEN);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec[0]) == hpage_size/(2*page_size),
+				 "%s get half huge page\n", __func__);
+
+		ret2 = pagemap_ioctl(map, map_size, vec, vec_size, 0, 0,
+				    PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN);
+		if (ret2 < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret2, errno, strerror(errno));
+
+		ksft_test_result(ret2 == 1 && LEN(vec[0]) == (map_size - hpage_size/2)/page_size,
+				 "%s get half huge page\n", __func__);
+
+		wp_free(map, map_size);
+		free(map);
+	} else {
+		ksft_test_result_skip("%s get half huge page\n", __func__);
+		ksft_test_result_skip("%s get half huge page\n", __func__);
+	}
+
+	free(vec);
+	free(vec2);
+	return 0;
+}
+
+int unmapped_region_tests(void)
+{
+	void *start = (void *)0x10000000;
+	int written, len = 0x00040000;
+	long vec_size = len / page_size;
+	struct page_region *vec = calloc(vec_size, sizeof(struct page_region));
+
+	/* 1. Get written pages */
+	written = pagemap_ioctl(start, len, vec, vec_size, 0, 0,
+				PAGEMAP_NON_WRITTEN_BITS, 0, 0, PAGEMAP_NON_WRITTEN_BITS);
+	if (written < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", written, errno, strerror(errno));
+
+	ksft_test_result(written >= 0, "%s Get status of pages\n", __func__);
+
+	free(vec);
+	return 0;
+}
+
+static void test_simple(void)
+{
+	int i;
+	char *map;
+	struct page_region vec;
+
+	map = aligned_alloc(page_size, page_size);
+	if (!map)
+		ksft_exit_fail_msg("aligned_alloc failed\n");
+
+	wp_init(map, page_size);
+	wp_addr_range(map, page_size);
+
+	for (i = 0 ; i < TEST_ITERATIONS; i++) {
+		if (pagemap_ioctl(map, page_size, &vec, 1, 0, 0,
+				  PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) == 1) {
+			ksft_print_msg("written bit was 1, but should be 0 (i=%d)\n", i);
+			break;
+		}
+
+		wp_addr_range(map, page_size);
+		/* Write something to the page to get the written bit enabled on the page */
+		map[0]++;
+
+		if (pagemap_ioctl(map, page_size, &vec, 1, 0, 0,
+				  PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) == 0) {
+			ksft_print_msg("written bit was 0, but should be 1 (i=%d)\n", i);
+			break;
+		}
+
+		wp_addr_range(map, page_size);
+	}
+	wp_free(map, page_size);
+	free(map);
+
+	ksft_test_result(i == TEST_ITERATIONS, "Test %s\n", __func__);
+}
+
+int sanity_tests(void)
+{
+	unsigned long long mem_size, vec_size;
+	long ret, fd, i, buf_size;
+	struct page_region *vec;
+	char *mem, *fmem;
+	struct stat sbuf;
+	char *tmp_buf;
+
+	/* 1. wrong operation */
+	mem_size = 10 * page_size;
+	vec_size = mem_size / page_size;
+
+	vec = calloc(vec_size, sizeof(struct page_region));
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED || vec == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size,
+				       PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC,
+				       0, PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) >= 0,
+			 "%s WP op can be specified with !PAGE_IS_WRITTEN\n", __func__);
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+				       PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL) >= 0,
+			 "%s required_mask specified\n", __func__);
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+				       0, PAGEMAP_BITS_ALL, 0, PAGEMAP_BITS_ALL) >= 0,
+			 "%s anyof_mask specified\n", __func__);
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+				       0, 0, PAGEMAP_BITS_ALL, PAGEMAP_BITS_ALL) >= 0,
+			 "%s excluded_mask specified\n", __func__);
+	ksft_test_result(pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+				       PAGEMAP_BITS_ALL, PAGEMAP_BITS_ALL, 0,
+				       PAGEMAP_BITS_ALL) >= 0,
+			 "%s required_mask and anyof_mask specified\n", __func__);
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 2. Get sd and present pages with anyof_mask */
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	memset(mem, 0, mem_size);
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+			    0, PAGEMAP_BITS_ALL, 0, PAGEMAP_BITS_ALL);
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)mem && LEN(vec[0]) == vec_size &&
+			 (vec[0].categories & (PAGE_IS_WRITTEN | PAGE_IS_PRESENT)) ==
+			 (PAGE_IS_WRITTEN | PAGE_IS_PRESENT),
+			 "%s Get sd and present pages with anyof_mask\n", __func__);
+
+	/* 3. Get sd and present pages with required_mask */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+			    PAGEMAP_BITS_ALL, 0, 0, PAGEMAP_BITS_ALL);
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)mem && LEN(vec[0]) == vec_size &&
+			 (vec[0].categories & (PAGE_IS_WRITTEN | PAGE_IS_PRESENT)) ==
+			 (PAGE_IS_WRITTEN | PAGE_IS_PRESENT),
+			 "%s Get all the pages with required_mask\n", __func__);
+
+	/* 4. Get sd and present pages with required_mask and anyof_mask */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+			    PAGE_IS_WRITTEN, PAGE_IS_PRESENT, 0, PAGEMAP_BITS_ALL);
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)mem && LEN(vec[0]) == vec_size &&
+			 (vec[0].categories & (PAGE_IS_WRITTEN | PAGE_IS_PRESENT)) ==
+			 (PAGE_IS_WRITTEN | PAGE_IS_PRESENT),
+			 "%s Get sd and present pages with required_mask and anyof_mask\n",
+			 __func__);
+
+	/* 5. Don't get sd pages */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+			    PAGE_IS_WRITTEN, 0, PAGE_IS_WRITTEN, PAGEMAP_BITS_ALL);
+	ksft_test_result(ret == 0, "%s Don't get sd pages\n", __func__);
+
+	/* 6. Don't get present pages */
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size, 0, 0,
+			    PAGE_IS_PRESENT, 0, PAGE_IS_PRESENT, PAGEMAP_BITS_ALL);
+	ksft_test_result(ret == 0, "%s Don't get present pages\n", __func__);
+
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 8. Find written present pages with return mask */
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	memset(mem, 0, mem_size);
+
+	ret = pagemap_ioctl(mem, mem_size, vec, vec_size,
+			    PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC, 0,
+			    0, PAGEMAP_BITS_ALL, 0, PAGE_IS_WRITTEN);
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)mem && LEN(vec[0]) == vec_size &&
+			 vec[0].categories == PAGE_IS_WRITTEN,
+			 "%s Find written present pages with return mask\n", __func__);
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 9. Memory mapped file */
+	fd = open(progname, O_RDONLY);
+	if (fd < 0)
+		ksft_exit_fail_msg("%s Memory mapped file\n", __func__);
+
+	ret = stat(progname, &sbuf);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %ld %d %s\n", ret, errno, strerror(errno));
+
+	fmem = mmap(NULL, sbuf.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (fmem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
+
+	tmp_buf = malloc(sbuf.st_size);
+	memcpy(tmp_buf, fmem, sbuf.st_size);
+
+	ret = pagemap_ioctl(fmem, sbuf.st_size, vec, vec_size, 0, 0,
+			    0, PAGEMAP_NON_WRITTEN_BITS, 0, PAGEMAP_NON_WRITTEN_BITS);
+
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)fmem &&
+			 LEN(vec[0]) == ceilf((float)sbuf.st_size/page_size) &&
+			 (vec[0].categories & PAGE_IS_FILE),
+			 "%s Memory mapped file\n", __func__);
+
+	munmap(fmem, sbuf.st_size);
+	close(fd);
+
+	/* 10. Create and read/write to a memory mapped file */
+	buf_size = page_size * 10;
+
+	fd = open(__FILE__".tmp2", O_RDWR | O_CREAT, 0666);
+	if (fd < 0)
+		ksft_exit_fail_msg("Read/write to memory: %s\n",
+				   strerror(errno));
+
+	for (i = 0; i < buf_size; i++)
+		if (write(fd, "c", 1) < 0)
+			ksft_exit_fail_msg("Create and read/write to a memory mapped file\n");
+
+	fmem = mmap(NULL, buf_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (fmem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
+
+	wp_init(fmem, buf_size);
+	wp_addr_range(fmem, buf_size);
+
+	for (i = 0; i < buf_size; i++)
+		fmem[i] = 'z';
+
+	msync(fmem, buf_size, MS_SYNC);
+
+	ret = pagemap_ioctl(fmem, buf_size, vec, vec_size, 0, 0,
+			    PAGE_IS_WRITTEN, PAGE_IS_PRESENT | PAGE_IS_SWAPPED | PAGE_IS_FILE, 0,
+			    PAGEMAP_BITS_ALL);
+
+	ksft_test_result(ret >= 0 && vec[0].start == (uintptr_t)fmem &&
+			 LEN(vec[0]) == (buf_size/page_size) &&
+			 (vec[0].categories & PAGE_IS_WRITTEN),
+			 "%s Read/write to memory\n", __func__);
+
+	wp_free(fmem, buf_size);
+	munmap(fmem, buf_size);
+	close(fd);
+
+	free(vec);
+	return 0;
+}
+
+int mprotect_tests(void)
+{
+	int ret;
+	char *mem, *mem2;
+	struct page_region vec;
+	int pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+
+	if (pagemap_fd < 0) {
+		fprintf(stderr, "open() failed\n");
+		exit(1);
+	}
+
+	/* 1. Map two pages */
+	mem = mmap(0, 2 * page_size, PROT_READ|PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem, 2 * page_size);
+	wp_addr_range(mem, 2 * page_size);
+
+	/* Populate both pages. */
+	memset(mem, 1, 2 * page_size);
+
+	ret = pagemap_ioctl(mem, 2 * page_size, &vec, 1, 0, 0, PAGE_IS_WRITTEN,
+			    0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec) == 2, "%s Both pages written\n", __func__);
+
+	/* 2. Start tracking */
+	wp_addr_range(mem, 2 * page_size);
+
+	ksft_test_result(pagemap_ioctl(mem, 2 * page_size, &vec, 1, 0, 0,
+				       PAGE_IS_WRITTEN, 0, 0, PAGE_IS_WRITTEN) == 0,
+			 "%s Both pages are not written (dirty)\n", __func__);
+
+	/* 3. Remap the second page */
+	mem2 = mmap(mem + page_size, page_size, PROT_READ|PROT_WRITE,
+		    MAP_PRIVATE|MAP_ANON|MAP_FIXED, -1, 0);
+	if (mem2 == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem2, page_size);
+	wp_addr_range(mem2, page_size);
+
+	/* Protect + unprotect. */
+	mprotect(mem, page_size, PROT_NONE);
+	mprotect(mem, 2 * page_size, PROT_READ);
+	mprotect(mem, 2 * page_size, PROT_READ|PROT_WRITE);
+
+	/* Modify both pages. */
+	memset(mem, 2, 2 * page_size);
+
+	/* Protect + unprotect. */
+	mprotect(mem, page_size, PROT_NONE);
+	mprotect(mem, page_size, PROT_READ);
+	mprotect(mem, page_size, PROT_READ|PROT_WRITE);
+
+	ret = pagemap_ioctl(mem, 2 * page_size, &vec, 1, 0, 0, PAGE_IS_WRITTEN,
+			    0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec) == 2,
+			 "%s Both pages written after remap and mprotect\n", __func__);
+
+	/* 4. Clear and make the pages written */
+	wp_addr_range(mem, 2 * page_size);
+
+	memset(mem, 'A', 2 * page_size);
+
+	ret = pagemap_ioctl(mem, 2 * page_size, &vec, 1, 0, 0, PAGE_IS_WRITTEN,
+			    0, 0, PAGE_IS_WRITTEN);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec) == 2,
+			 "%s Clear and make the pages written\n", __func__);
+
+	wp_free(mem, 2 * page_size);
+	munmap(mem, 2 * page_size);
+	return 0;
+}
+
+/* transact test */
+static const unsigned int nthreads = 6, pages_per_thread = 32, access_per_thread = 8;
+static pthread_barrier_t start_barrier, end_barrier;
+static unsigned int extra_thread_faults;
+static unsigned int iter_count = 1000;
+static volatile int finish;
+
+static ssize_t get_dirty_pages_reset(char *mem, unsigned int count,
+				     int reset, int page_size)
+{
+	struct pm_scan_arg arg = {0};
+	struct page_region rgns[256];
+	unsigned long long i, j;
+	long ret;
+	int cnt;
+
+	arg.size = sizeof(struct pm_scan_arg);
+	arg.start = (uintptr_t)mem;
+	arg.max_pages = count;
+	arg.end = (uintptr_t)(mem + count * page_size);
+	arg.vec = (uintptr_t)rgns;
+	arg.vec_len = sizeof(rgns) / sizeof(*rgns);
+	if (reset)
+		arg.flags |= PM_SCAN_WP_MATCHING | PM_SCAN_CHECK_WPASYNC;
+	arg.category_mask = PAGE_IS_WRITTEN;
+	arg.return_mask = PAGE_IS_WRITTEN;
+
+	ret = ioctl(pagemap_fd, PAGEMAP_SCAN, &arg);
+	if (ret < 0)
+		ksft_exit_fail_msg("ioctl failed\n");
+
+	cnt = 0;
+	for (i = 0; i < (unsigned long)ret; ++i) {
+		if (rgns[i].categories != PAGE_IS_WRITTEN)
+			ksft_exit_fail_msg("wrong flags\n");
+
+		for (j = 0; j < LEN(rgns[i]); ++j)
+			cnt++;
+	}
+
+	return cnt;
+}
+
+void *thread_proc(void *mem)
+{
+	int *m = mem;
+	long curr_faults, faults;
+	struct rusage r;
+	unsigned int i;
+	int ret;
+
+	if (getrusage(RUSAGE_THREAD, &r))
+		ksft_exit_fail_msg("getrusage\n");
+
+	curr_faults = r.ru_minflt;
+
+	while (!finish) {
+		ret = pthread_barrier_wait(&start_barrier);
+		if (ret && ret != PTHREAD_BARRIER_SERIAL_THREAD)
+			ksft_exit_fail_msg("pthread_barrier_wait\n");
+
+		for (i = 0; i < access_per_thread; ++i)
+			__atomic_add_fetch(m + i * (0x1000 / sizeof(*m)), 1, __ATOMIC_SEQ_CST);
+
+		ret = pthread_barrier_wait(&end_barrier);
+		if (ret && ret != PTHREAD_BARRIER_SERIAL_THREAD)
+			ksft_exit_fail_msg("pthread_barrier_wait\n");
+
+		if (getrusage(RUSAGE_THREAD, &r))
+			ksft_exit_fail_msg("getrusage\n");
+
+		faults = r.ru_minflt - curr_faults;
+		if (faults < access_per_thread)
+			ksft_exit_fail_msg("faults < access_per_thread");
+
+		__atomic_add_fetch(&extra_thread_faults, faults - access_per_thread,
+				   __ATOMIC_SEQ_CST);
+		curr_faults = r.ru_minflt;
+	}
+
+	return NULL;
+}
+
+static void transact_test(int page_size)
+{
+	unsigned int i, count, extra_pages;
+	unsigned int c;
+	pthread_t th;
+	char *mem;
+	int ret;
+
+	if (pthread_barrier_init(&start_barrier, NULL, nthreads + 1))
+		ksft_exit_fail_msg("pthread_barrier_init\n");
+
+	if (pthread_barrier_init(&end_barrier, NULL, nthreads + 1))
+		ksft_exit_fail_msg("pthread_barrier_init\n");
+
+	mem = mmap(NULL, 0x1000 * nthreads * pages_per_thread, PROT_READ | PROT_WRITE,
+		   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("Error mmap %s.\n", strerror(errno));
+
+	wp_init(mem, 0x1000 * nthreads * pages_per_thread);
+	wp_addr_range(mem, 0x1000 * nthreads * pages_per_thread);
+
+	memset(mem, 0, 0x1000 * nthreads * pages_per_thread);
+
+	count = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1, page_size);
+	ksft_test_result(count > 0, "%s count %u\n", __func__, count);
+	count = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1, page_size);
+	ksft_test_result(count == 0, "%s count %u\n", __func__, count);
+
+	finish = 0;
+	for (i = 0; i < nthreads; ++i)
+		pthread_create(&th, NULL, thread_proc, mem + 0x1000 * i * pages_per_thread);
+
+	extra_pages = 0;
+	for (i = 0; i < iter_count; ++i) {
+		count = 0;
+
+		ret = pthread_barrier_wait(&start_barrier);
+		if (ret && ret != PTHREAD_BARRIER_SERIAL_THREAD)
+			ksft_exit_fail_msg("pthread_barrier_wait\n");
+
+		count = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1,
+					      page_size);
+
+		ret = pthread_barrier_wait(&end_barrier);
+		if (ret && ret != PTHREAD_BARRIER_SERIAL_THREAD)
+			ksft_exit_fail_msg("pthread_barrier_wait\n");
+
+		if (count > nthreads * access_per_thread)
+			ksft_exit_fail_msg("Too big count %u expected %u, iter %u\n",
+					   count, nthreads * access_per_thread, i);
+
+		c = get_dirty_pages_reset(mem, nthreads * pages_per_thread, 1, page_size);
+		count += c;
+
+		if (c > nthreads * access_per_thread) {
+			ksft_test_result_fail(" %s count > nthreads\n", __func__);
+			return;
+		}
+
+		if (count != nthreads * access_per_thread) {
+			/*
+			 * The purpose of the test is to make sure that no page updates are lost
+			 * when the page updates and read-resetting soft dirty flags are performed
+			 * in parallel. However, it is possible that the application will get the
+			 * soft dirty flags twice on the two consecutive read-resets. This seems
+			 * unavoidable as soft dirty flag is handled in software through page faults
+			 * in kernel. While the updating the flags is supposed to be synchronized
+			 * between page fault handling and read-reset, it is possible that
+			 * read-reset happens after page fault PTE update but before the application
+			 * re-executes write instruction. So read-reset gets the flag, clears write
+			 * access and application gets page fault again for the same write.
+			 */
+			if (count < nthreads * access_per_thread) {
+				ksft_test_result_fail("Lost update, iter %u, %u vs %u.\n", i, count,
+						      nthreads * access_per_thread);
+				return;
+			}
+
+			extra_pages += count - nthreads * access_per_thread;
+		}
+	}
+
+	pthread_barrier_wait(&start_barrier);
+	finish = 1;
+	pthread_barrier_wait(&end_barrier);
+
+	ksft_test_result_pass("%s Extra pages %u (%.1lf%%), extra thread faults %u.\n", __func__,
+			      extra_pages,
+			      100.0 * extra_pages / (iter_count * nthreads * access_per_thread),
+			      extra_thread_faults);
+}
+
+void zeropfn_tests(void)
+{
+	unsigned long long mem_size;
+	struct page_region vec;
+	int i, ret;
+	char *mmap_mem, *mem;
+
+	/* Test with normal memory */
+	mem_size = 10 * page_size;
+	mem = mmap(NULL, mem_size, PROT_READ, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	/* Touch each page to ensure it's mapped */
+	for (i = 0; i < mem_size; i += page_size)
+		(void)((volatile char *)mem)[i];
+
+	ret = pagemap_ioctl(mem, mem_size, &vec, 1, 0,
+			    (mem_size / page_size), PAGE_IS_PFNZERO, 0, 0, PAGE_IS_PFNZERO);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+	ksft_test_result(ret == 1 && LEN(vec) == (mem_size / page_size),
+			 "%s all pages must have PFNZERO set\n", __func__);
+
+	munmap(mem, mem_size);
+
+	/* Test with huge page if user_zero_page is set to 1 */
+	if (!detect_huge_zeropage()) {
+		ksft_test_result_skip("%s use_zero_page not supported or set to 1\n", __func__);
+		return;
+	}
+
+	mem_size = 2 * hpage_size;
+	mmap_mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE,
+			MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mmap_mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+
+	/* We need a THP-aligned memory area. */
+	mem = (char *)(((uintptr_t)mmap_mem + hpage_size) & ~(hpage_size - 1));
+
+	ret = madvise(mem, hpage_size, MADV_HUGEPAGE);
+	if (!ret) {
+		FORCE_READ(*mem);
+
+		ret = pagemap_ioctl(mem, hpage_size, &vec, 1, 0,
+				    0, PAGE_IS_PFNZERO, 0, 0, PAGE_IS_PFNZERO);
+		if (ret < 0)
+			ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+		ksft_test_result(ret == 1 && LEN(vec) == (hpage_size / page_size),
+				 "%s all huge pages must have PFNZERO set\n", __func__);
+	} else {
+		ksft_test_result_skip("%s huge page not supported\n", __func__);
+	}
+
+	munmap(mmap_mem, mem_size);
+}
+
+int main(int __attribute__((unused)) argc, char *argv[])
+{
+	int shmid, buf_size, fd, i, ret;
+	unsigned long long mem_size;
+	char *mem, *map, *fmem;
+	struct stat sbuf;
+
+	progname = argv[0];
+
+	ksft_print_header();
+
+	if (init_uffd())
+		ksft_exit_pass();
+
+	ksft_set_plan(117);
+
+	page_size = getpagesize();
+	hpage_size = read_pmd_pagesize();
+
+	pagemap_fd = open(PAGEMAP, O_RDONLY);
+	if (pagemap_fd < 0)
+		return -EINVAL;
+
+	/* 1. Sanity testing */
+	sanity_tests_sd();
+
+	/* 2. Normal page testing */
+	mem_size = 10 * page_size;
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	base_tests("Page testing:", mem, mem_size, 0);
+
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 3. Large page testing */
+	mem_size = 512 * 10 * page_size;
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANON, -1, 0);
+	if (mem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem\n");
+	wp_init(mem, mem_size);
+	wp_addr_range(mem, mem_size);
+
+	base_tests("Large Page testing:", mem, mem_size, 0);
+
+	wp_free(mem, mem_size);
+	munmap(mem, mem_size);
+
+	/* 4. Huge page testing */
+	map = gethugepage(hpage_size);
+	if (map) {
+		wp_init(map, hpage_size);
+		wp_addr_range(map, hpage_size);
+		base_tests("Huge page testing:", map, hpage_size, 0);
+		wp_free(map, hpage_size);
+		free(map);
+	} else {
+		base_tests("Huge page testing:", NULL, 0, 1);
+	}
+
+	/* 5. SHM Hugetlb page testing */
+	mem_size = 2*1024*1024;
+	mem = gethugetlb_mem(mem_size, &shmid);
+	if (mem) {
+		wp_init(mem, mem_size);
+		wp_addr_range(mem, mem_size);
+
+		base_tests("Hugetlb shmem testing:", mem, mem_size, 0);
+
+		wp_free(mem, mem_size);
+		shmctl(shmid, IPC_RMID, NULL);
+	} else {
+		base_tests("Hugetlb shmem testing:", NULL, 0, 1);
+	}
+
+	/* 6. Hugetlb page testing */
+	mem = gethugetlb_mem(mem_size, NULL);
+	if (mem) {
+		wp_init(mem, mem_size);
+		wp_addr_range(mem, mem_size);
+
+		base_tests("Hugetlb mem testing:", mem, mem_size, 0);
+
+		wp_free(mem, mem_size);
+	} else {
+		base_tests("Hugetlb mem testing:", NULL, 0, 1);
+	}
+
+	/* 7. File Hugetlb testing */
+	mem_size = 2*1024*1024;
+	fd = memfd_create("uffd-test", MFD_HUGETLB | MFD_NOEXEC_SEAL);
+	if (fd < 0)
+		ksft_exit_fail_msg("uffd-test creation failed %d %s\n", errno, strerror(errno));
+	mem = mmap(NULL, mem_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	if (mem != MAP_FAILED) {
+		wp_init(mem, mem_size);
+		wp_addr_range(mem, mem_size);
+
+		base_tests("Hugetlb shmem testing:", mem, mem_size, 0);
+
+		wp_free(mem, mem_size);
+		shmctl(shmid, IPC_RMID, NULL);
+	} else {
+		base_tests("Hugetlb shmem testing:", NULL, 0, 1);
+	}
+	close(fd);
+
+	/* 8. File memory testing */
+	buf_size = page_size * 10;
+
+	fd = open(__FILE__".tmp0", O_RDWR | O_CREAT, 0777);
+	if (fd < 0)
+		ksft_exit_fail_msg("Create and read/write to a memory mapped file: %s\n",
+				   strerror(errno));
+
+	for (i = 0; i < buf_size; i++)
+		if (write(fd, "c", 1) < 0)
+			ksft_exit_fail_msg("Create and read/write to a memory mapped file\n");
+
+	ret = stat(__FILE__".tmp0", &sbuf);
+	if (ret < 0)
+		ksft_exit_fail_msg("error %d %d %s\n", ret, errno, strerror(errno));
+
+	fmem = mmap(NULL, sbuf.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (fmem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
+
+	wp_init(fmem, sbuf.st_size);
+	wp_addr_range(fmem, sbuf.st_size);
+
+	base_tests("File memory testing:", fmem, sbuf.st_size, 0);
+
+	wp_free(fmem, sbuf.st_size);
+	munmap(fmem, sbuf.st_size);
+	close(fd);
+
+	/* 9. File memory testing */
+	buf_size = page_size * 10;
+
+	fd = memfd_create(__FILE__".tmp00", MFD_NOEXEC_SEAL);
+	if (fd < 0)
+		ksft_exit_fail_msg("Create and read/write to a memory mapped file: %s\n",
+				   strerror(errno));
+
+	if (ftruncate(fd, buf_size))
+		ksft_exit_fail_msg("Error ftruncate\n");
+
+	for (i = 0; i < buf_size; i++)
+		if (write(fd, "c", 1) < 0)
+			ksft_exit_fail_msg("Create and read/write to a memory mapped file\n");
+
+	fmem = mmap(NULL, buf_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
+	if (fmem == MAP_FAILED)
+		ksft_exit_fail_msg("error nomem %d %s\n", errno, strerror(errno));
+
+	wp_init(fmem, buf_size);
+	wp_addr_range(fmem, buf_size);
+
+	base_tests("File anonymous memory testing:", fmem, buf_size, 0);
+
+	wp_free(fmem, buf_size);
+	munmap(fmem, buf_size);
+	close(fd);
+
+	/* 10. Huge page tests */
+	hpage_unit_tests();
+
+	/* 11. Iterative test */
+	test_simple();
+
+	/* 12. Mprotect test */
+	mprotect_tests();
+
+	/* 13. Transact test */
+	transact_test(page_size);
+
+	/* 14. Sanity testing */
+	sanity_tests();
+
+	/*15. Unmapped address test */
+	unmapped_region_tests();
+
+	/* 16. Userfaultfd tests */
+	userfaultfd_tests();
+
+	/* 17. ZEROPFN tests */
+	zeropfn_tests();
+
+	close(pagemap_fd);
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/pfnmap.c b/tools/testing/selftests/mm/pfnmap.c
new file mode 100644
index 000000000000..f546dfb10cae
--- /dev/null
+++ b/tools/testing/selftests/mm/pfnmap.c
@@ -0,0 +1,269 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Basic VM_PFNMAP tests relying on mmap() of input file provided.
+ * Use '/dev/mem' as default.
+ *
+ * Copyright 2025, Red Hat, Inc.
+ *
+ * Author(s): David Hildenbrand <david@redhat.com>
+ */
+#define _GNU_SOURCE
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <setjmp.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+#include "kselftest_harness.h"
+#include "vm_util.h"
+
+static sigjmp_buf sigjmp_buf_env;
+static char *file = "/dev/mem";
+
+static void signal_handler(int sig)
+{
+	siglongjmp(sigjmp_buf_env, -EFAULT);
+}
+
+static int test_read_access(char *addr, size_t size, size_t pagesize)
+{
+	size_t offs;
+	int ret;
+
+	if (signal(SIGSEGV, signal_handler) == SIG_ERR)
+		return -EINVAL;
+
+	ret = sigsetjmp(sigjmp_buf_env, 1);
+	if (!ret) {
+		for (offs = 0; offs < size; offs += pagesize)
+			/* Force a read that the compiler cannot optimize out. */
+			*((volatile char *)(addr + offs));
+	}
+	if (signal(SIGSEGV, SIG_DFL) == SIG_ERR)
+		return -EINVAL;
+
+	return ret;
+}
+
+static int find_ram_target(off_t *offset,
+		unsigned long long pagesize)
+{
+	unsigned long long start, end;
+	char line[80], *end_ptr;
+	FILE *file;
+
+	/* Search /proc/iomem for the first suitable "System RAM" range. */
+	file = fopen("/proc/iomem", "r");
+	if (!file)
+		return -errno;
+
+	while (fgets(line, sizeof(line), file)) {
+		/* Ignore any child nodes. */
+		if (!isalnum(line[0]))
+			continue;
+
+		if (!strstr(line, "System RAM\n"))
+			continue;
+
+		start = strtoull(line, &end_ptr, 16);
+		/* Skip over the "-" */
+		end_ptr++;
+		/* Make end "exclusive". */
+		end = strtoull(end_ptr, NULL, 16) + 1;
+
+		/* Actual addresses are not exported */
+		if (!start && !end)
+			break;
+
+		/* We need full pages. */
+		start = (start + pagesize - 1) & ~(pagesize - 1);
+		end &= ~(pagesize - 1);
+
+		if (start != (off_t)start)
+			break;
+
+		/* We need two pages. */
+		if (end > start + 2 * pagesize) {
+			fclose(file);
+			*offset = start;
+			return 0;
+		}
+	}
+	return -ENOENT;
+}
+
+FIXTURE(pfnmap)
+{
+	off_t offset;
+	size_t pagesize;
+	int dev_mem_fd;
+	char *addr1;
+	size_t size1;
+	char *addr2;
+	size_t size2;
+};
+
+FIXTURE_SETUP(pfnmap)
+{
+	self->pagesize = getpagesize();
+
+	if (strncmp(file, "/dev/mem", strlen("/dev/mem")) == 0) {
+		/* We'll require two physical pages throughout our tests ... */
+		if (find_ram_target(&self->offset, self->pagesize))
+			SKIP(return,
+				   "Cannot find ram target in '/proc/iomem'\n");
+	} else {
+		self->offset = 0;
+	}
+
+	self->dev_mem_fd = open(file, O_RDONLY);
+	if (self->dev_mem_fd < 0)
+		SKIP(return, "Cannot open '%s'\n", file);
+
+	self->size1 = self->pagesize * 2;
+	self->addr1 = mmap(NULL, self->size1, PROT_READ, MAP_SHARED,
+			   self->dev_mem_fd, self->offset);
+	if (self->addr1 == MAP_FAILED)
+		SKIP(return, "Cannot mmap '%s'\n", file);
+
+	if (!check_vmflag_pfnmap(self->addr1))
+		SKIP(return, "Invalid file: '%s'. Not pfnmap'ed\n", file);
+
+	/* ... and want to be able to read from them. */
+	if (test_read_access(self->addr1, self->size1, self->pagesize))
+		SKIP(return, "Cannot read-access mmap'ed '%s'\n", file);
+
+	self->size2 = 0;
+	self->addr2 = MAP_FAILED;
+}
+
+FIXTURE_TEARDOWN(pfnmap)
+{
+	if (self->addr2 != MAP_FAILED)
+		munmap(self->addr2, self->size2);
+	if (self->addr1 != MAP_FAILED)
+		munmap(self->addr1, self->size1);
+	if (self->dev_mem_fd >= 0)
+		close(self->dev_mem_fd);
+}
+
+TEST_F(pfnmap, madvise_disallowed)
+{
+	int advices[] = {
+		MADV_DONTNEED,
+		MADV_DONTNEED_LOCKED,
+		MADV_FREE,
+		MADV_WIPEONFORK,
+		MADV_COLD,
+		MADV_PAGEOUT,
+		MADV_POPULATE_READ,
+		MADV_POPULATE_WRITE,
+	};
+	int i;
+
+	/* All these advices must be rejected. */
+	for (i = 0; i < ARRAY_SIZE(advices); i++) {
+		EXPECT_LT(madvise(self->addr1, self->pagesize, advices[i]), 0);
+		EXPECT_EQ(errno, EINVAL);
+	}
+}
+
+TEST_F(pfnmap, munmap_split)
+{
+	/*
+	 * Unmap the first page. This munmap() call is not really expected to
+	 * fail, but we might be able to trigger other internal issues.
+	 */
+	ASSERT_EQ(munmap(self->addr1, self->pagesize), 0);
+
+	/*
+	 * Remap the first page while the second page is still mapped. This
+	 * makes sure that any PAT tracking on x86 will allow for mmap()'ing
+	 * a page again while some parts of the first mmap() are still
+	 * around.
+	 */
+	self->size2 = self->pagesize;
+	self->addr2 = mmap(NULL, self->pagesize, PROT_READ, MAP_SHARED,
+			   self->dev_mem_fd, self->offset);
+	ASSERT_NE(self->addr2, MAP_FAILED);
+}
+
+TEST_F(pfnmap, mremap_fixed)
+{
+	char *ret;
+
+	/* Reserve a destination area. */
+	self->size2 = self->size1;
+	self->addr2 = mmap(NULL, self->size2, PROT_READ, MAP_ANON | MAP_PRIVATE,
+			   -1, 0);
+	ASSERT_NE(self->addr2, MAP_FAILED);
+
+	/* mremap() over our destination. */
+	ret = mremap(self->addr1, self->size1, self->size2,
+		     MREMAP_FIXED | MREMAP_MAYMOVE, self->addr2);
+	ASSERT_NE(ret, MAP_FAILED);
+}
+
+TEST_F(pfnmap, mremap_shrink)
+{
+	char *ret;
+
+	/* Shrinking is expected to work. */
+	ret = mremap(self->addr1, self->size1, self->size1 - self->pagesize, 0);
+	ASSERT_NE(ret, MAP_FAILED);
+}
+
+TEST_F(pfnmap, mremap_expand)
+{
+	/*
+	 * Growing is not expected to work, and getting it right would
+	 * be challenging. So this test primarily serves as an early warning
+	 * that something that probably should never work suddenly works.
+	 */
+	self->size2 = self->size1 + self->pagesize;
+	self->addr2 = mremap(self->addr1, self->size1, self->size2, MREMAP_MAYMOVE);
+	ASSERT_EQ(self->addr2, MAP_FAILED);
+}
+
+TEST_F(pfnmap, fork)
+{
+	pid_t pid;
+	int ret;
+
+	/* fork() a child and test if the child can access the pages. */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (!pid) {
+		EXPECT_EQ(test_read_access(self->addr1, self->size1,
+					   self->pagesize), 0);
+		exit(0);
+	}
+
+	wait(&ret);
+	if (WIFEXITED(ret))
+		ret = WEXITSTATUS(ret);
+	else
+		ret = -EINVAL;
+	ASSERT_EQ(ret, 0);
+}
+
+int main(int argc, char **argv)
+{
+	for (int i = 1; i < argc; i++) {
+		if (strcmp(argv[i], "--") == 0) {
+			if (i + 1 < argc && strlen(argv[i + 1]) > 0)
+				file = argv[i + 1];
+			return test_harness_run(i, argv);
+		}
+	}
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/mm/pkey-arm64.h b/tools/testing/selftests/mm/pkey-arm64.h
new file mode 100644
index 000000000000..8e9685e03c44
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey-arm64.h
@@ -0,0 +1,140 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2023 Arm Ltd.
+ */
+
+#ifndef _PKEYS_ARM64_H
+#define _PKEYS_ARM64_H
+
+#include "vm_util.h"
+/* for signal frame parsing */
+#include "../arm64/signal/testcases/testcases.h"
+
+#ifndef SYS_mprotect_key
+# define SYS_mprotect_key	288
+#endif
+#ifndef SYS_pkey_alloc
+# define SYS_pkey_alloc		289
+# define SYS_pkey_free		290
+#endif
+#define MCONTEXT_IP(mc)		mc.pc
+#define MCONTEXT_TRAPNO(mc)	-1
+
+#define PKEY_MASK		0xf
+
+#define POE_NONE		0x0
+#define POE_X			0x2
+#define POE_RX			0x3
+#define POE_RWX			0x7
+
+#define NR_PKEYS		8
+#define NR_RESERVED_PKEYS	1 /* pkey-0 */
+
+#define PKEY_REG_ALLOW_ALL	0x77777777
+#define PKEY_REG_ALLOW_NONE	0x0
+
+#define PKEY_BITS_PER_PKEY	4
+#define PAGE_SIZE		sysconf(_SC_PAGESIZE)
+#undef HPAGE_SIZE
+#define HPAGE_SIZE		default_huge_page_size()
+
+/* 4-byte instructions * 16384 = 64K page */
+#define __page_o_noops() asm(".rept 16384 ; nop; .endr")
+
+static inline u64 __read_pkey_reg(void)
+{
+	u64 pkey_reg = 0;
+
+	// POR_EL0
+	asm volatile("mrs %0, S3_3_c10_c2_4" : "=r" (pkey_reg));
+
+	return pkey_reg;
+}
+
+static inline void __write_pkey_reg(u64 pkey_reg)
+{
+	u64 por = pkey_reg;
+
+	dprintf4("%s() changing %016llx to %016llx\n",
+			 __func__, __read_pkey_reg(), pkey_reg);
+
+	// POR_EL0
+	asm volatile("msr S3_3_c10_c2_4, %0\nisb" :: "r" (por) :);
+
+	dprintf4("%s() pkey register after changing %016llx to %016llx\n",
+			__func__, __read_pkey_reg(), pkey_reg);
+}
+
+static inline int cpu_has_pkeys(void)
+{
+	/* No simple way to determine this */
+	return 1;
+}
+
+static inline u32 pkey_bit_position(int pkey)
+{
+	return pkey * PKEY_BITS_PER_PKEY;
+}
+
+static inline int get_arch_reserved_keys(void)
+{
+	return NR_RESERVED_PKEYS;
+}
+
+static inline void expect_fault_on_read_execonly_key(void *p1, int pkey)
+{
+}
+
+static inline void *malloc_pkey_with_mprotect_subpage(long size, int prot, u16 pkey)
+{
+	return PTR_ERR_ENOTSUP;
+}
+
+#define set_pkey_bits	set_pkey_bits
+static inline u64 set_pkey_bits(u64 reg, int pkey, u64 flags)
+{
+	u32 shift = pkey_bit_position(pkey);
+	u64 new_val = POE_RWX;
+
+	/* mask out bits from pkey in old value */
+	reg &= ~((u64)PKEY_MASK << shift);
+
+	if (flags & PKEY_DISABLE_ACCESS)
+		new_val = POE_X;
+	else if (flags & PKEY_DISABLE_WRITE)
+		new_val = POE_RX;
+
+	/* OR in new bits for pkey */
+	reg |= new_val << shift;
+
+	return reg;
+}
+
+#define get_pkey_bits	get_pkey_bits
+static inline u64 get_pkey_bits(u64 reg, int pkey)
+{
+	u32 shift = pkey_bit_position(pkey);
+	/*
+	 * shift down the relevant bits to the lowest four, then
+	 * mask off all the other higher bits
+	 */
+	u32 perm = (reg >> shift) & PKEY_MASK;
+
+	if (perm == POE_X)
+		return PKEY_DISABLE_ACCESS;
+	if (perm == POE_RX)
+		return PKEY_DISABLE_WRITE;
+	return 0;
+}
+
+static inline void aarch64_write_signal_pkey(ucontext_t *uctxt, u64 pkey)
+{
+	struct _aarch64_ctx *ctx = GET_UC_RESV_HEAD(uctxt);
+	struct poe_context *poe_ctx =
+		(struct poe_context *) get_header(ctx, POE_MAGIC,
+						sizeof(uctxt->uc_mcontext), NULL);
+	if (poe_ctx)
+		poe_ctx->por_el0 = pkey;
+}
+
+#endif /* _PKEYS_ARM64_H */
diff --git a/tools/testing/selftests/mm/pkey-helpers.h b/tools/testing/selftests/mm/pkey-helpers.h
new file mode 100644
index 000000000000..7c29f075e40b
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey-helpers.h
@@ -0,0 +1,219 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PKEYS_HELPER_H
+#define _PKEYS_HELPER_H
+#define _GNU_SOURCE
+#include <string.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+
+#include <linux/mman.h>
+#include <linux/types.h>
+
+#include "kselftest.h"
+
+/* Define some kernel-like types */
+typedef __u8	u8;
+typedef __u16	u16;
+typedef __u32	u32;
+typedef __u64	u64;
+
+#define PTR_ERR_ENOTSUP ((void *)-ENOTSUP)
+
+#ifndef DEBUG_LEVEL
+#define DEBUG_LEVEL 0
+#endif
+extern int dprint_in_signal;
+
+extern int test_nr;
+extern int iteration_nr;
+
+#ifdef __GNUC__
+__printf(1, 2)
+#endif
+static inline void sigsafe_printf(const char *format, ...)
+{
+	va_list ap;
+
+	if (!dprint_in_signal) {
+		va_start(ap, format);
+		vprintf(format, ap);
+		va_end(ap);
+	} else {
+		int ret;
+		/*
+		 * No printf() functions are signal-safe.
+		 * They deadlock easily. Write the format
+		 * string to get some output, even if
+		 * incomplete.
+		 */
+		ret = write(1, format, strlen(format));
+		if (ret < 0)
+			exit(1);
+	}
+}
+#define dprintf_level(level, args...) do {	\
+	if (level <= DEBUG_LEVEL)		\
+		sigsafe_printf(args);		\
+} while (0)
+#define dprintf0(args...) dprintf_level(0, args)
+#define dprintf1(args...) dprintf_level(1, args)
+#define dprintf2(args...) dprintf_level(2, args)
+#define dprintf3(args...) dprintf_level(3, args)
+#define dprintf4(args...) dprintf_level(4, args)
+
+extern void abort_hooks(void);
+#define pkey_assert(condition) do {		\
+	if (!(condition)) {			\
+		dprintf0("assert() at %s::%d test_nr: %d iteration: %d\n", \
+				__FILE__, __LINE__,	\
+				test_nr, iteration_nr);	\
+		dprintf0("errno at assert: %d", errno);	\
+		abort_hooks();			\
+		exit(__LINE__);			\
+	}					\
+} while (0)
+
+#define barrier() __asm__ __volatile__("": : :"memory")
+#ifndef noinline
+# define noinline __attribute__((noinline))
+#endif
+
+int sys_pkey_alloc(unsigned long flags, unsigned long init_val);
+int sys_pkey_free(unsigned long pkey);
+int sys_mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
+		unsigned long pkey);
+
+/* For functions called from protection_keys.c only */
+noinline int read_ptr(int *ptr);
+void expected_pkey_fault(int pkey);
+int mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
+		unsigned long pkey);
+void record_pkey_malloc(void *ptr, long size, int prot);
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+#include "pkey-x86.h"
+#elif defined(__powerpc64__) /* arch */
+#include "pkey-powerpc.h"
+#elif defined(__aarch64__) /* arch */
+#include "pkey-arm64.h"
+#else /* arch */
+#error Architecture not supported
+#endif /* arch */
+
+#ifndef PKEY_MASK
+#define PKEY_MASK	(PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE)
+#endif
+
+/*
+ * FIXME: Remove once the generic PKEY_UNRESTRICTED definition is merged.
+ */
+#ifndef PKEY_UNRESTRICTED
+#define PKEY_UNRESTRICTED 0x0
+#endif
+
+#ifndef set_pkey_bits
+static inline u64 set_pkey_bits(u64 reg, int pkey, u64 flags)
+{
+	u32 shift = pkey_bit_position(pkey);
+	/* mask out bits from pkey in old value */
+	reg &= ~((u64)PKEY_MASK << shift);
+	/* OR in new bits for pkey */
+	reg |= (flags & PKEY_MASK) << shift;
+	return reg;
+}
+#endif
+
+#ifndef get_pkey_bits
+static inline u64 get_pkey_bits(u64 reg, int pkey)
+{
+	u32 shift = pkey_bit_position(pkey);
+	/*
+	 * shift down the relevant bits to the lowest two, then
+	 * mask off all the other higher bits
+	 */
+	return ((reg >> shift) & PKEY_MASK);
+}
+#endif
+
+extern u64 shadow_pkey_reg;
+
+static inline u64 _read_pkey_reg(int line)
+{
+	u64 pkey_reg = __read_pkey_reg();
+
+	dprintf4("read_pkey_reg(line=%d) pkey_reg: %016llx"
+			" shadow: %016llx\n",
+			line, pkey_reg, shadow_pkey_reg);
+	assert(pkey_reg == shadow_pkey_reg);
+
+	return pkey_reg;
+}
+
+#define read_pkey_reg() _read_pkey_reg(__LINE__)
+
+static inline void write_pkey_reg(u64 pkey_reg)
+{
+	dprintf4("%s() changing %016llx to %016llx\n", __func__,
+			__read_pkey_reg(), pkey_reg);
+	/* will do the shadow check for us: */
+	read_pkey_reg();
+	__write_pkey_reg(pkey_reg);
+	shadow_pkey_reg = pkey_reg;
+	dprintf4("%s(%016llx) pkey_reg: %016llx\n", __func__,
+			pkey_reg, __read_pkey_reg());
+}
+
+#define ALIGN_UP(x, align_to)	(((x) + ((align_to)-1)) & ~((align_to)-1))
+#define ALIGN_DOWN(x, align_to) ((x) & ~((align_to)-1))
+#define ALIGN_PTR_UP(p, ptr_align_to)	\
+	((typeof(p))ALIGN_UP((unsigned long)(p), ptr_align_to))
+#define ALIGN_PTR_DOWN(p, ptr_align_to)	\
+	((typeof(p))ALIGN_DOWN((unsigned long)(p), ptr_align_to))
+#define __stringify_1(x...)     #x
+#define __stringify(x...)       __stringify_1(x)
+
+static inline u32 *siginfo_get_pkey_ptr(siginfo_t *si)
+{
+#ifdef si_pkey
+	return &si->si_pkey;
+#else
+	return (u32 *)(((u8 *)si) + si_pkey_offset);
+#endif
+}
+
+static inline int kernel_has_pkeys(void)
+{
+	/* try allocating a key and see if it succeeds */
+	int ret = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	if (ret <= 0) {
+		return 0;
+	}
+	sys_pkey_free(ret);
+	return 1;
+}
+
+static inline int is_pkeys_supported(void)
+{
+	/* check if the cpu supports pkeys */
+	if (!cpu_has_pkeys()) {
+		dprintf1("SKIP: %s: no CPU support\n", __func__);
+		return 0;
+	}
+
+	/* check if the kernel supports pkeys */
+	if (!kernel_has_pkeys()) {
+		dprintf1("SKIP: %s: no kernel support\n", __func__);
+		return 0;
+	}
+
+	return 1;
+}
+
+#endif /* _PKEYS_HELPER_H */
diff --git a/tools/testing/selftests/mm/pkey-powerpc.h b/tools/testing/selftests/mm/pkey-powerpc.h
new file mode 100644
index 000000000000..17bf2d1b0192
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey-powerpc.h
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _PKEYS_POWERPC_H
+#define _PKEYS_POWERPC_H
+
+#include <sys/stat.h>
+
+#ifndef SYS_pkey_alloc
+# define SYS_pkey_alloc		384
+# define SYS_pkey_free		385
+#endif
+#define REG_IP_IDX		PT_NIP
+#define MCONTEXT_IP(mc)		mc.gp_regs[REG_IP_IDX]
+#define MCONTEXT_TRAPNO(mc)	mc.gp_regs[REG_TRAPNO]
+#define REG_TRAPNO		PT_TRAP
+#define MCONTEXT_FPREGS
+#define gregs			gp_regs
+#define fpregs			fp_regs
+#define si_pkey_offset		0x20
+
+#undef PKEY_DISABLE_ACCESS
+#define PKEY_DISABLE_ACCESS	0x3  /* disable read and write */
+
+#undef PKEY_DISABLE_WRITE
+#define PKEY_DISABLE_WRITE	0x2
+
+#define NR_PKEYS		32
+#define NR_RESERVED_PKEYS_4K	27 /* pkey-0, pkey-1, exec-only-pkey
+				      and 24 other keys that cannot be
+				      represented in the PTE */
+#define NR_RESERVED_PKEYS_64K_3KEYS	3 /* PowerNV and KVM: pkey-0,
+					     pkey-1 and exec-only key */
+#define NR_RESERVED_PKEYS_64K_4KEYS	4 /* PowerVM: pkey-0, pkey-1,
+					     pkey-31 and exec-only key */
+#define PKEY_BITS_PER_PKEY	2
+#define HPAGE_SIZE		(1UL << 24)
+#define PAGE_SIZE		sysconf(_SC_PAGESIZE)
+
+static inline u32 pkey_bit_position(int pkey)
+{
+	return (NR_PKEYS - pkey - 1) * PKEY_BITS_PER_PKEY;
+}
+
+static inline u64 __read_pkey_reg(void)
+{
+	u64 pkey_reg;
+
+	asm volatile("mfspr %0, 0xd" : "=r" (pkey_reg));
+
+	return pkey_reg;
+}
+
+static inline void __write_pkey_reg(u64 pkey_reg)
+{
+	u64 amr = pkey_reg;
+
+	dprintf4("%s() changing %016llx to %016llx\n",
+			 __func__, __read_pkey_reg(), pkey_reg);
+
+	asm volatile("isync; mtspr 0xd, %0; isync"
+		     : : "r" ((unsigned long)(amr)) : "memory");
+
+	dprintf4("%s() pkey register after changing %016llx to %016llx\n",
+			__func__, __read_pkey_reg(), pkey_reg);
+}
+
+static inline int cpu_has_pkeys(void)
+{
+	/* No simple way to determine this */
+	return 1;
+}
+
+static inline bool arch_is_powervm()
+{
+	struct stat buf;
+
+	if ((stat("/sys/firmware/devicetree/base/ibm,partition-name", &buf) == 0) &&
+	    (stat("/sys/firmware/devicetree/base/hmc-managed?", &buf) == 0) &&
+	    (stat("/sys/firmware/devicetree/base/chosen/qemu,graphic-width", &buf) == -1) )
+		return true;
+
+	return false;
+}
+
+static inline int get_arch_reserved_keys(void)
+{
+	if (sysconf(_SC_PAGESIZE) == 4096)
+		return NR_RESERVED_PKEYS_4K;
+	else
+		if (arch_is_powervm())
+			return NR_RESERVED_PKEYS_64K_4KEYS;
+		else
+			return NR_RESERVED_PKEYS_64K_3KEYS;
+}
+
+static inline void expect_fault_on_read_execonly_key(void *p1, int pkey)
+{
+	/*
+	 * powerpc does not allow userspace to change permissions of exec-only
+	 * keys since those keys are not allocated by userspace. The signal
+	 * handler wont be able to reset the permissions, which means the code
+	 * will infinitely continue to segfault here.
+	 */
+	return;
+}
+
+#define REPEAT_8(s) s s s s s s s s
+#define REPEAT_64(s) REPEAT_8(s) REPEAT_8(s) REPEAT_8(s) REPEAT_8(s) \
+		     REPEAT_8(s) REPEAT_8(s) REPEAT_8(s) REPEAT_8(s)
+#define REPEAT_512(s) REPEAT_64(s) REPEAT_64(s) REPEAT_64(s) REPEAT_64(s) \
+		      REPEAT_64(s) REPEAT_64(s) REPEAT_64(s) REPEAT_64(s)
+#define REPEAT_4096(s) REPEAT_512(s) REPEAT_512(s) REPEAT_512(s) REPEAT_512(s) \
+		       REPEAT_512(s) REPEAT_512(s) REPEAT_512(s) REPEAT_512(s)
+#define REPEAT_16384(s) REPEAT_4096(s) REPEAT_4096(s) \
+			REPEAT_4096(s) REPEAT_4096(s)
+
+/* 4-byte instructions * 16384 = 64K page */
+#define __page_o_noops() asm(REPEAT_16384("nop\n"))
+
+static inline void *malloc_pkey_with_mprotect_subpage(long size, int prot, u16 pkey)
+{
+	void *ptr;
+	int ret;
+
+	dprintf1("doing %s(size=%ld, prot=0x%x, pkey=%d)\n", __func__,
+			size, prot, pkey);
+	pkey_assert(pkey < NR_PKEYS);
+	ptr = mmap(NULL, size, prot, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	pkey_assert(ptr != (void *)-1);
+
+	ret = syscall(__NR_subpage_prot, ptr, size, NULL);
+	if (ret) {
+		perror("subpage_perm");
+		return PTR_ERR_ENOTSUP;
+	}
+
+	ret = mprotect_pkey((void *)ptr, PAGE_SIZE, prot, pkey);
+	pkey_assert(!ret);
+	record_pkey_malloc(ptr, size, prot);
+
+	dprintf1("%s() for pkey %d @ %p\n", __func__, pkey, ptr);
+	return ptr;
+}
+
+#endif /* _PKEYS_POWERPC_H */
diff --git a/tools/testing/selftests/mm/pkey-x86.h b/tools/testing/selftests/mm/pkey-x86.h
new file mode 100644
index 000000000000..f7ecd335df1e
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey-x86.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _PKEYS_X86_H
+#define _PKEYS_X86_H
+
+#ifdef __i386__
+
+#define REG_IP_IDX		REG_EIP
+#define si_pkey_offset		0x14
+
+#else
+
+#define REG_IP_IDX		REG_RIP
+#define si_pkey_offset		0x20
+
+#endif
+
+#define MCONTEXT_IP(mc)		mc.gregs[REG_IP_IDX]
+#define MCONTEXT_TRAPNO(mc)	mc.gregs[REG_TRAPNO]
+#define MCONTEXT_FPREGS
+
+#ifndef PKEY_DISABLE_ACCESS
+# define PKEY_DISABLE_ACCESS	0x1
+#endif
+
+#ifndef PKEY_DISABLE_WRITE
+# define PKEY_DISABLE_WRITE	0x2
+#endif
+
+#define NR_PKEYS		16
+#define NR_RESERVED_PKEYS	2 /* pkey-0 and exec-only-pkey */
+#define PKEY_BITS_PER_PKEY	2
+#define HPAGE_SIZE		(1UL<<21)
+#define PAGE_SIZE		4096
+#define MB			(1<<20)
+
+#define PKEY_REG_ALLOW_NONE	0x55555555
+
+static inline void __page_o_noops(void)
+{
+	/* 8-bytes of instruction * 512 bytes = 1 page */
+	asm(".rept 512 ; nopl 0x7eeeeeee(%eax) ; .endr");
+}
+
+static inline u64 __read_pkey_reg(void)
+{
+	unsigned int eax, edx;
+	unsigned int ecx = 0;
+	unsigned pkey_reg;
+
+	asm volatile(".byte 0x0f,0x01,0xee\n\t"
+		     : "=a" (eax), "=d" (edx)
+		     : "c" (ecx));
+	pkey_reg = eax;
+	return pkey_reg;
+}
+
+static inline void __write_pkey_reg(u64 pkey_reg)
+{
+	unsigned int eax = pkey_reg;
+	unsigned int ecx = 0;
+	unsigned int edx = 0;
+
+	dprintf4("%s() changing %016llx to %016llx\n", __func__,
+			__read_pkey_reg(), pkey_reg);
+	asm volatile(".byte 0x0f,0x01,0xef\n\t"
+		     : : "a" (eax), "c" (ecx), "d" (edx));
+	assert(pkey_reg == __read_pkey_reg());
+}
+
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx) */
+#define X86_FEATURE_PKU        (1<<3) /* Protection Keys for Userspace */
+#define X86_FEATURE_OSPKE      (1<<4) /* OS Protection Keys Enable */
+
+static inline int cpu_has_pkeys(void)
+{
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+
+	__cpuid_count(0x7, 0x0, eax, ebx, ecx, edx);
+
+	if (!(ecx & X86_FEATURE_PKU)) {
+		dprintf2("cpu does not have PKU\n");
+		return 0;
+	}
+	if (!(ecx & X86_FEATURE_OSPKE)) {
+		dprintf2("cpu does not have OSPKE\n");
+		return 0;
+	}
+	return 1;
+}
+
+static inline int cpu_max_xsave_size(void)
+{
+	unsigned long XSTATE_CPUID = 0xd;
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+
+	__cpuid_count(XSTATE_CPUID, 0, eax, ebx, ecx, edx);
+	return ecx;
+}
+
+static inline u32 pkey_bit_position(int pkey)
+{
+	return pkey * PKEY_BITS_PER_PKEY;
+}
+
+#define XSTATE_PKEY_BIT	(9)
+#define XSTATE_PKEY	0x200
+#define XSTATE_BV_OFFSET	512
+
+static inline int pkey_reg_xstate_offset(void)
+{
+	unsigned int eax;
+	unsigned int ebx;
+	unsigned int ecx;
+	unsigned int edx;
+	int xstate_offset;
+	int xstate_size = 0;
+	unsigned long XSTATE_CPUID = 0xd;
+	int leaf;
+
+	/* assume that XSTATE_PKEY is set in XCR0 */
+	leaf = XSTATE_PKEY_BIT;
+	{
+		__cpuid_count(XSTATE_CPUID, leaf, eax, ebx, ecx, edx);
+
+		if (leaf == XSTATE_PKEY_BIT) {
+			xstate_offset = ebx;
+			xstate_size = eax;
+		}
+	}
+
+	if (xstate_size == 0) {
+		printf("could not find size/offset of PKEY in xsave state\n");
+		return 0;
+	}
+
+	return xstate_offset;
+}
+
+static inline int get_arch_reserved_keys(void)
+{
+	return NR_RESERVED_PKEYS;
+}
+
+static inline void expect_fault_on_read_execonly_key(void *p1, int pkey)
+{
+	int ptr_contents;
+
+	ptr_contents = read_ptr(p1);
+	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);
+	expected_pkey_fault(pkey);
+}
+
+static inline void *malloc_pkey_with_mprotect_subpage(long size, int prot, u16 pkey)
+{
+	return PTR_ERR_ENOTSUP;
+}
+
+#endif /* _PKEYS_X86_H */
diff --git a/tools/testing/selftests/mm/pkey_sighandler_tests.c b/tools/testing/selftests/mm/pkey_sighandler_tests.c
new file mode 100644
index 000000000000..302fef54049c
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey_sighandler_tests.c
@@ -0,0 +1,546 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests Memory Protection Keys (see Documentation/core-api/protection-keys.rst)
+ *
+ * The testcases in this file exercise various flows related to signal handling,
+ * using an alternate signal stack, with the default pkey (pkey 0) disabled.
+ *
+ * Compile with:
+ * gcc -mxsave      -o pkey_sighandler_tests -O2 -g -std=gnu99 -pthread -Wall pkey_sighandler_tests.c -I../../../../tools/include -lrt -ldl -lm
+ * gcc -mxsave -m32 -o pkey_sighandler_tests -O2 -g -std=gnu99 -pthread -Wall pkey_sighandler_tests.c -I../../../../tools/include -lrt -ldl -lm
+ */
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
+#include <linux/mman.h>
+#include <errno.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <limits.h>
+
+#include "pkey-helpers.h"
+
+#define STACK_SIZE PTHREAD_STACK_MIN
+
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+static siginfo_t siginfo = {0};
+
+/*
+ * We need to use inline assembly instead of glibc's syscall because glibc's
+ * syscall will attempt to access the PLT in order to call a library function
+ * which is protected by MPK 0 which we don't have access to.
+ */
+static __always_inline
+long syscall_raw(long n, long a1, long a2, long a3, long a4, long a5, long a6)
+{
+	unsigned long ret;
+#ifdef __x86_64__
+	register long r10 asm("r10") = a4;
+	register long r8 asm("r8") = a5;
+	register long r9 asm("r9") = a6;
+	asm volatile ("syscall"
+		      : "=a"(ret)
+		      : "a"(n), "D"(a1), "S"(a2), "d"(a3), "r"(r10), "r"(r8), "r"(r9)
+		      : "rcx", "r11", "memory");
+#elif defined __i386__
+	asm volatile ("int $0x80"
+		      : "=a"(ret)
+		      : "a"(n), "b"(a1), "c"(a2), "d"(a3), "S"(a4), "D"(a5)
+		      : "memory");
+#elif defined __aarch64__
+	register long x0 asm("x0") = a1;
+	register long x1 asm("x1") = a2;
+	register long x2 asm("x2") = a3;
+	register long x3 asm("x3") = a4;
+	register long x4 asm("x4") = a5;
+	register long x5 asm("x5") = a6;
+	register long x8 asm("x8") = n;
+	asm volatile ("svc #0"
+		      : "=r"(x0)
+		      : "r"(x0), "r"(x1), "r"(x2), "r"(x3), "r"(x4), "r"(x5), "r"(x8)
+		      : "memory");
+	ret = x0;
+#else
+# error syscall_raw() not implemented
+#endif
+	return ret;
+}
+
+static inline long clone_raw(unsigned long flags, void *stack,
+			     int *parent_tid, int *child_tid)
+{
+	long a1 = flags;
+	long a2 = (long)stack;
+	long a3 = (long)parent_tid;
+#if defined(__x86_64__) || defined(__i386)
+	long a4 = (long)child_tid;
+	long a5 = 0;
+#elif defined(__aarch64__)
+	long a4 = 0;
+	long a5 = (long)child_tid;
+#else
+# error clone_raw() not implemented
+#endif
+
+	return syscall_raw(SYS_clone, a1, a2, a3, a4, a5, 0);
+}
+
+/*
+ * Returns the most restrictive pkey register value that can be used by the
+ * tests.
+ */
+static inline u64 pkey_reg_restrictive_default(void)
+{
+	/*
+	 * Disallow everything except execution on pkey 0, so that each caller
+	 * doesn't need to enable it explicitly (the selftest code runs with
+	 * its code mapped with pkey 0).
+	 */
+	return set_pkey_bits(PKEY_REG_ALLOW_NONE, 0, PKEY_DISABLE_ACCESS);
+}
+
+static void sigsegv_handler(int signo, siginfo_t *info, void *ucontext)
+{
+	pthread_mutex_lock(&mutex);
+
+	memcpy(&siginfo, info, sizeof(siginfo_t));
+
+	pthread_cond_signal(&cond);
+	pthread_mutex_unlock(&mutex);
+
+	syscall_raw(SYS_exit, 0, 0, 0, 0, 0, 0);
+}
+
+static void sigusr1_handler(int signo, siginfo_t *info, void *ucontext)
+{
+	pthread_mutex_lock(&mutex);
+
+	memcpy(&siginfo, info, sizeof(siginfo_t));
+
+	pthread_cond_signal(&cond);
+	pthread_mutex_unlock(&mutex);
+}
+
+static void sigusr2_handler(int signo, siginfo_t *info, void *ucontext)
+{
+	/*
+	 * pkru should be the init_pkru value which enabled MPK 0 so
+	 * we can use library functions.
+	 */
+	printf("%s invoked.\n", __func__);
+}
+
+static void raise_sigusr2(void)
+{
+	pid_t tid = 0;
+
+	tid = syscall_raw(SYS_gettid, 0, 0, 0, 0, 0, 0);
+
+	syscall_raw(SYS_tkill, tid, SIGUSR2, 0, 0, 0, 0);
+
+	/*
+	 * We should return from the signal handler here and be able to
+	 * return to the interrupted thread.
+	 */
+}
+
+static void *thread_segv_with_pkey0_disabled(void *ptr)
+{
+	/* Disable MPK 0 (and all others too) */
+	__write_pkey_reg(pkey_reg_restrictive_default());
+
+	/* Segfault (with SEGV_MAPERR) */
+	*(volatile int *)NULL = 1;
+	return NULL;
+}
+
+static void *thread_segv_pkuerr_stack(void *ptr)
+{
+	/* Disable MPK 0 (and all others too) */
+	__write_pkey_reg(pkey_reg_restrictive_default());
+
+	/* After we disable MPK 0, we can't access the stack to return */
+	return NULL;
+}
+
+static void *thread_segv_maperr_ptr(void *ptr)
+{
+	stack_t *stack = ptr;
+	u64 pkey_reg;
+
+	/*
+	 * Setup alternate signal stack, which should be pkey_mprotect()ed by
+	 * MPK 0. The thread's stack cannot be used for signals because it is
+	 * not accessible by the default init_pkru value of 0x55555554.
+	 */
+	syscall_raw(SYS_sigaltstack, (long)stack, 0, 0, 0, 0, 0);
+
+	/* Disable MPK 0.  Only MPK 1 is enabled. */
+	pkey_reg = pkey_reg_restrictive_default();
+	pkey_reg = set_pkey_bits(pkey_reg, 1, PKEY_UNRESTRICTED);
+	__write_pkey_reg(pkey_reg);
+
+	/* Segfault */
+	*(volatile int *)NULL = 1;
+	syscall_raw(SYS_exit, 0, 0, 0, 0, 0, 0);
+	return NULL;
+}
+
+/*
+ * Verify that the sigsegv handler is invoked when pkey 0 is disabled.
+ * Note that the new thread stack and the alternate signal stack is
+ * protected by MPK 0.
+ */
+static void test_sigsegv_handler_with_pkey0_disabled(void)
+{
+	struct sigaction sa;
+	pthread_attr_t attr;
+	pthread_t thr;
+
+	sa.sa_flags = SA_SIGINFO;
+
+	sa.sa_sigaction = sigsegv_handler;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGSEGV, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&siginfo, 0, sizeof(siginfo));
+
+	pthread_attr_init(&attr);
+	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+	pthread_create(&thr, &attr, thread_segv_with_pkey0_disabled, NULL);
+
+	pthread_mutex_lock(&mutex);
+	while (siginfo.si_signo == 0)
+		pthread_cond_wait(&cond, &mutex);
+	pthread_mutex_unlock(&mutex);
+
+	ksft_test_result(siginfo.si_signo == SIGSEGV &&
+			 siginfo.si_code == SEGV_MAPERR &&
+			 siginfo.si_addr == NULL,
+			 "%s\n", __func__);
+}
+
+/*
+ * Verify that the sigsegv handler is invoked when pkey 0 is disabled.
+ * Note that the new thread stack and the alternate signal stack is
+ * protected by MPK 0, which renders them inaccessible when MPK 0
+ * is disabled. So just the return from the thread should cause a
+ * segfault with SEGV_PKUERR.
+ */
+static void test_sigsegv_handler_cannot_access_stack(void)
+{
+	struct sigaction sa;
+	pthread_attr_t attr;
+	pthread_t thr;
+
+	sa.sa_flags = SA_SIGINFO;
+
+	sa.sa_sigaction = sigsegv_handler;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGSEGV, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&siginfo, 0, sizeof(siginfo));
+
+	pthread_attr_init(&attr);
+	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+	pthread_create(&thr, &attr, thread_segv_pkuerr_stack, NULL);
+
+	pthread_mutex_lock(&mutex);
+	while (siginfo.si_signo == 0)
+		pthread_cond_wait(&cond, &mutex);
+	pthread_mutex_unlock(&mutex);
+
+	ksft_test_result(siginfo.si_signo == SIGSEGV &&
+			 siginfo.si_code == SEGV_PKUERR,
+			 "%s\n", __func__);
+}
+
+/*
+ * Verify that the sigsegv handler that uses an alternate signal stack
+ * is correctly invoked for a thread which uses a non-zero MPK to protect
+ * its own stack, and disables all other MPKs (including 0).
+ */
+static void test_sigsegv_handler_with_different_pkey_for_stack(void)
+{
+	struct sigaction sa;
+	static stack_t sigstack;
+	void *stack;
+	int pkey;
+	int parent_pid = 0;
+	int child_pid = 0;
+	u64 pkey_reg;
+
+	sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
+
+	sa.sa_sigaction = sigsegv_handler;
+
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGSEGV, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	stack = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE,
+		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	assert(stack != MAP_FAILED);
+
+	/* Allow access to MPK 0 and MPK 1 */
+	pkey_reg = pkey_reg_restrictive_default();
+	pkey_reg = set_pkey_bits(pkey_reg, 0, PKEY_UNRESTRICTED);
+	pkey_reg = set_pkey_bits(pkey_reg, 1, PKEY_UNRESTRICTED);
+	__write_pkey_reg(pkey_reg);
+
+	/* Protect the new stack with MPK 1 */
+	pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	sys_mprotect_pkey(stack, STACK_SIZE, PROT_READ | PROT_WRITE, pkey);
+
+	/* Set up alternate signal stack that will use the default MPK */
+	sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE,
+			      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	sigstack.ss_flags = 0;
+	sigstack.ss_size = STACK_SIZE;
+
+	memset(&siginfo, 0, sizeof(siginfo));
+
+	/* Use clone to avoid newer glibcs using rseq on new threads */
+	long ret = clone_raw(CLONE_VM | CLONE_FS | CLONE_FILES |
+			     CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM |
+			     CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID |
+			     CLONE_DETACHED,
+			     stack + STACK_SIZE,
+			     &parent_pid,
+			     &child_pid);
+
+	if (ret < 0) {
+		errno = -ret;
+		perror("clone");
+	} else if (ret == 0) {
+		thread_segv_maperr_ptr(&sigstack);
+		syscall_raw(SYS_exit, 0, 0, 0, 0, 0, 0);
+	}
+
+	pthread_mutex_lock(&mutex);
+	while (siginfo.si_signo == 0)
+		pthread_cond_wait(&cond, &mutex);
+	pthread_mutex_unlock(&mutex);
+
+	ksft_test_result(siginfo.si_signo == SIGSEGV &&
+			 siginfo.si_code == SEGV_MAPERR &&
+			 siginfo.si_addr == NULL,
+			 "%s\n", __func__);
+}
+
+/*
+ * Verify that the PKRU value set by the application is correctly
+ * restored upon return from signal handling.
+ */
+static void test_pkru_preserved_after_sigusr1(void)
+{
+	struct sigaction sa;
+	u64 pkey_reg;
+
+	/* Allow access to MPK 0 and an arbitrary set of keys */
+	pkey_reg = pkey_reg_restrictive_default();
+	pkey_reg = set_pkey_bits(pkey_reg, 0, PKEY_UNRESTRICTED);
+	pkey_reg = set_pkey_bits(pkey_reg, 3, PKEY_UNRESTRICTED);
+	pkey_reg = set_pkey_bits(pkey_reg, 7, PKEY_UNRESTRICTED);
+
+	sa.sa_flags = SA_SIGINFO;
+
+	sa.sa_sigaction = sigusr1_handler;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGUSR1, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&siginfo, 0, sizeof(siginfo));
+
+	__write_pkey_reg(pkey_reg);
+
+	raise(SIGUSR1);
+
+	pthread_mutex_lock(&mutex);
+	while (siginfo.si_signo == 0)
+		pthread_cond_wait(&cond, &mutex);
+	pthread_mutex_unlock(&mutex);
+
+	/* Ensure the pkru value is the same after returning from signal. */
+	ksft_test_result(pkey_reg == __read_pkey_reg() &&
+			 siginfo.si_signo == SIGUSR1,
+			 "%s\n", __func__);
+}
+
+static noinline void *thread_sigusr2_self(void *ptr)
+{
+	/*
+	 * A const char array like "Resuming after SIGUSR2" won't be stored on
+	 * the stack and the code could access it via an offset from the program
+	 * counter. This makes sure it's on the function's stack frame.
+	 */
+	char str[] = {'R', 'e', 's', 'u', 'm', 'i', 'n', 'g', ' ',
+		'a', 'f', 't', 'e', 'r', ' ',
+		'S', 'I', 'G', 'U', 'S', 'R', '2',
+		'.', '.', '.', '\n', '\0'};
+	stack_t *stack = ptr;
+	u64 pkey_reg;
+
+	/*
+	 * Setup alternate signal stack, which should be pkey_mprotect()ed by
+	 * MPK 0. The thread's stack cannot be used for signals because it is
+	 * not accessible by the default init_pkru value of 0x55555554.
+	 */
+	syscall(SYS_sigaltstack, (long)stack, 0, 0, 0, 0, 0);
+
+	/* Disable MPK 0.  Only MPK 2 is enabled. */
+	pkey_reg = pkey_reg_restrictive_default();
+	pkey_reg = set_pkey_bits(pkey_reg, 2, PKEY_UNRESTRICTED);
+	__write_pkey_reg(pkey_reg);
+
+	raise_sigusr2();
+
+	/* Do something, to show the thread resumed execution after the signal */
+	syscall_raw(SYS_write, 1, (long) str, sizeof(str) - 1, 0, 0, 0);
+
+	/*
+	 * We can't return to test_pkru_sigreturn because it
+	 * will attempt to use a %rbp value which is on the stack
+	 * of the main thread.
+	 */
+	syscall_raw(SYS_exit, 0, 0, 0, 0, 0, 0);
+	return NULL;
+}
+
+/*
+ * Verify that sigreturn is able to restore altstack even if the thread had
+ * disabled pkey 0.
+ */
+static void test_pkru_sigreturn(void)
+{
+	struct sigaction sa = {0};
+	static stack_t sigstack;
+	void *stack;
+	int pkey;
+	int parent_pid = 0;
+	int child_pid = 0;
+	u64 pkey_reg;
+
+	sa.sa_handler = SIG_DFL;
+	sa.sa_flags = 0;
+	sigemptyset(&sa.sa_mask);
+
+	/*
+	 * For this testcase, we do not want to handle SIGSEGV. Reset handler
+	 * to default so that the application can crash if it receives SIGSEGV.
+	 */
+	if (sigaction(SIGSEGV, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
+	sa.sa_sigaction = sigusr2_handler;
+	sigemptyset(&sa.sa_mask);
+
+	if (sigaction(SIGUSR2, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+
+	stack = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE,
+		     MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	assert(stack != MAP_FAILED);
+
+	/*
+	 * Allow access to MPK 0 and MPK 2. The child thread (to be created
+	 * later in this flow) will have its stack protected by MPK 2, whereas
+	 * the current thread's stack is protected by the default MPK 0. Hence
+	 * both need to be enabled.
+	 */
+	pkey_reg = pkey_reg_restrictive_default();
+	pkey_reg = set_pkey_bits(pkey_reg, 0, PKEY_UNRESTRICTED);
+	pkey_reg = set_pkey_bits(pkey_reg, 2, PKEY_UNRESTRICTED);
+	__write_pkey_reg(pkey_reg);
+
+	/* Protect the stack with MPK 2 */
+	pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	sys_mprotect_pkey(stack, STACK_SIZE, PROT_READ | PROT_WRITE, pkey);
+
+	/* Set up alternate signal stack that will use the default MPK */
+	sigstack.ss_sp = mmap(0, STACK_SIZE, PROT_READ | PROT_WRITE,
+			      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	sigstack.ss_flags = 0;
+	sigstack.ss_size = STACK_SIZE;
+
+	/* Use clone to avoid newer glibcs using rseq on new threads */
+	long ret = clone_raw(CLONE_VM | CLONE_FS | CLONE_FILES |
+			     CLONE_SIGHAND | CLONE_THREAD | CLONE_SYSVSEM |
+			     CLONE_PARENT_SETTID | CLONE_CHILD_CLEARTID |
+			     CLONE_DETACHED,
+			     stack + STACK_SIZE,
+			     &parent_pid,
+			     &child_pid);
+
+	if (ret < 0) {
+		errno = -ret;
+		perror("clone");
+	}  else if (ret == 0) {
+		thread_sigusr2_self(&sigstack);
+		syscall_raw(SYS_exit, 0, 0, 0, 0, 0, 0);
+	}
+
+	child_pid =  ret;
+	/* Check that thread exited */
+	do {
+		sched_yield();
+		ret = syscall_raw(SYS_tkill, child_pid, 0, 0, 0, 0, 0);
+	} while (ret != -ESRCH && ret != -EINVAL);
+
+	ksft_test_result_pass("%s\n", __func__);
+}
+
+static void (*pkey_tests[])(void) = {
+	test_sigsegv_handler_with_pkey0_disabled,
+	test_sigsegv_handler_cannot_access_stack,
+	test_sigsegv_handler_with_different_pkey_for_stack,
+	test_pkru_preserved_after_sigusr1,
+	test_pkru_sigreturn
+};
+
+int main(int argc, char *argv[])
+{
+	int i;
+
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(pkey_tests));
+
+	if (!is_pkeys_supported())
+		ksft_exit_skip("pkeys not supported\n");
+
+	for (i = 0; i < ARRAY_SIZE(pkey_tests); i++)
+		(*pkey_tests[i])();
+
+	ksft_finished();
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/pkey_util.c b/tools/testing/selftests/mm/pkey_util.c
new file mode 100644
index 000000000000..255b332f7a08
--- /dev/null
+++ b/tools/testing/selftests/mm/pkey_util.c
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#define __SANE_USERSPACE_TYPES__
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "pkey-helpers.h"
+
+int sys_pkey_alloc(unsigned long flags, unsigned long init_val)
+{
+	int ret = syscall(SYS_pkey_alloc, flags, init_val);
+	dprintf1("%s(flags=%lx, init_val=%lx) syscall ret: %d errno: %d\n",
+			__func__, flags, init_val, ret, errno);
+	return ret;
+}
+
+int sys_pkey_free(unsigned long pkey)
+{
+	int ret = syscall(SYS_pkey_free, pkey);
+	dprintf1("%s(pkey=%ld) syscall ret: %d\n", __func__, pkey, ret);
+	return ret;
+}
+
+int sys_mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
+		unsigned long pkey)
+{
+	int sret;
+
+	dprintf2("%s(0x%p, %zx, prot=%lx, pkey=%lx)\n", __func__,
+			ptr, size, orig_prot, pkey);
+
+	errno = 0;
+	sret = syscall(__NR_pkey_mprotect, ptr, size, orig_prot, pkey);
+	if (errno) {
+		dprintf2("SYS_mprotect_key sret: %d\n", sret);
+		dprintf2("SYS_mprotect_key prot: 0x%lx\n", orig_prot);
+		dprintf2("SYS_mprotect_key failed, errno: %d\n", errno);
+		if (DEBUG_LEVEL >= 2)
+			perror("SYS_mprotect_pkey");
+	}
+	return sret;
+}
diff --git a/tools/testing/selftests/mm/prctl_thp_disable.c b/tools/testing/selftests/mm/prctl_thp_disable.c
new file mode 100644
index 000000000000..ca27200596a4
--- /dev/null
+++ b/tools/testing/selftests/mm/prctl_thp_disable.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Basic tests for PR_GET/SET_THP_DISABLE prctl calls
+ *
+ * Author(s): Usama Arif <usamaarif642@gmail.com>
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <linux/mman.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+
+#include "kselftest_harness.h"
+#include "thp_settings.h"
+#include "vm_util.h"
+
+#ifndef PR_THP_DISABLE_EXCEPT_ADVISED
+#define PR_THP_DISABLE_EXCEPT_ADVISED (1 << 1)
+#endif
+
+enum thp_collapse_type {
+	THP_COLLAPSE_NONE,
+	THP_COLLAPSE_MADV_NOHUGEPAGE,
+	THP_COLLAPSE_MADV_HUGEPAGE,	/* MADV_HUGEPAGE before access */
+	THP_COLLAPSE_MADV_COLLAPSE,	/* MADV_COLLAPSE after access */
+};
+
+/*
+ * Function to mmap a buffer, fault it in, madvise it appropriately (before
+ * page fault for MADV_HUGE, and after for MADV_COLLAPSE), and check if the
+ * mmap region is huge.
+ * Returns:
+ * 0 if test doesn't give hugepage
+ * 1 if test gives a hugepage
+ * -errno if mmap fails
+ */
+static int test_mmap_thp(enum thp_collapse_type madvise_buf, size_t pmdsize)
+{
+	char *mem, *mmap_mem;
+	size_t mmap_size;
+	int ret;
+
+	/* For alignment purposes, we need twice the THP size. */
+	mmap_size = 2 * pmdsize;
+	mmap_mem = (char *)mmap(NULL, mmap_size, PROT_READ | PROT_WRITE,
+				    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (mmap_mem == MAP_FAILED)
+		return -errno;
+
+	/* We need a THP-aligned memory area. */
+	mem = (char *)(((uintptr_t)mmap_mem + pmdsize) & ~(pmdsize - 1));
+
+	if (madvise_buf == THP_COLLAPSE_MADV_HUGEPAGE)
+		madvise(mem, pmdsize, MADV_HUGEPAGE);
+	else if (madvise_buf == THP_COLLAPSE_MADV_NOHUGEPAGE)
+		madvise(mem, pmdsize, MADV_NOHUGEPAGE);
+
+	/* Ensure memory is allocated */
+	memset(mem, 1, pmdsize);
+
+	if (madvise_buf == THP_COLLAPSE_MADV_COLLAPSE)
+		madvise(mem, pmdsize, MADV_COLLAPSE);
+
+	/* HACK: make sure we have a separate VMA that we can check reliably. */
+	mprotect(mem, pmdsize, PROT_READ);
+
+	ret = check_huge_anon(mem, 1, pmdsize);
+	munmap(mmap_mem, mmap_size);
+	return ret;
+}
+
+static void prctl_thp_disable_completely_test(struct __test_metadata *const _metadata,
+					      size_t pmdsize,
+					      enum thp_enabled thp_policy)
+{
+	ASSERT_EQ(prctl(PR_GET_THP_DISABLE, NULL, NULL, NULL, NULL), 1);
+
+	/* tests after prctl overrides global policy */
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_NONE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_NOHUGEPAGE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_HUGEPAGE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_COLLAPSE, pmdsize), 0);
+
+	/* Reset to global policy */
+	ASSERT_EQ(prctl(PR_SET_THP_DISABLE, 0, NULL, NULL, NULL), 0);
+
+	/* tests after prctl is cleared, and only global policy is effective */
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_NONE, pmdsize),
+		  thp_policy == THP_ALWAYS ? 1 : 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_NOHUGEPAGE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_HUGEPAGE, pmdsize),
+		  thp_policy == THP_NEVER ? 0 : 1);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_COLLAPSE, pmdsize), 1);
+}
+
+FIXTURE(prctl_thp_disable_completely)
+{
+	struct thp_settings settings;
+	size_t pmdsize;
+};
+
+FIXTURE_VARIANT(prctl_thp_disable_completely)
+{
+	enum thp_enabled thp_policy;
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_completely, never)
+{
+	.thp_policy = THP_NEVER,
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_completely, madvise)
+{
+	.thp_policy = THP_MADVISE,
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_completely, always)
+{
+	.thp_policy = THP_ALWAYS,
+};
+
+FIXTURE_SETUP(prctl_thp_disable_completely)
+{
+	if (!thp_available())
+		SKIP(return, "Transparent Hugepages not available\n");
+
+	self->pmdsize = read_pmd_pagesize();
+	if (!self->pmdsize)
+		SKIP(return, "Unable to read PMD size\n");
+
+	if (prctl(PR_SET_THP_DISABLE, 1, NULL, NULL, NULL))
+		SKIP(return, "Unable to disable THPs completely for the process\n");
+
+	thp_save_settings();
+	thp_read_settings(&self->settings);
+	self->settings.thp_enabled = variant->thp_policy;
+	self->settings.hugepages[sz2ord(self->pmdsize, getpagesize())].enabled = THP_INHERIT;
+	thp_write_settings(&self->settings);
+}
+
+FIXTURE_TEARDOWN(prctl_thp_disable_completely)
+{
+	thp_restore_settings();
+}
+
+TEST_F(prctl_thp_disable_completely, nofork)
+{
+	prctl_thp_disable_completely_test(_metadata, self->pmdsize, variant->thp_policy);
+}
+
+TEST_F(prctl_thp_disable_completely, fork)
+{
+	int ret = 0;
+	pid_t pid;
+
+	/* Make sure prctl changes are carried across fork */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (!pid) {
+		prctl_thp_disable_completely_test(_metadata, self->pmdsize, variant->thp_policy);
+		return;
+	}
+
+	wait(&ret);
+	if (WIFEXITED(ret))
+		ret = WEXITSTATUS(ret);
+	else
+		ret = -EINVAL;
+	ASSERT_EQ(ret, 0);
+}
+
+static void prctl_thp_disable_except_madvise_test(struct __test_metadata *const _metadata,
+						  size_t pmdsize,
+						  enum thp_enabled thp_policy)
+{
+	ASSERT_EQ(prctl(PR_GET_THP_DISABLE, NULL, NULL, NULL, NULL), 3);
+
+	/* tests after prctl overrides global policy */
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_NONE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_NOHUGEPAGE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_HUGEPAGE, pmdsize),
+		  thp_policy == THP_NEVER ? 0 : 1);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_COLLAPSE, pmdsize), 1);
+
+	/* Reset to global policy */
+	ASSERT_EQ(prctl(PR_SET_THP_DISABLE, 0, NULL, NULL, NULL), 0);
+
+	/* tests after prctl is cleared, and only global policy is effective */
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_NONE, pmdsize),
+		  thp_policy == THP_ALWAYS ? 1 : 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_NOHUGEPAGE, pmdsize), 0);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_HUGEPAGE, pmdsize),
+		  thp_policy == THP_NEVER ? 0 : 1);
+
+	ASSERT_EQ(test_mmap_thp(THP_COLLAPSE_MADV_COLLAPSE, pmdsize), 1);
+}
+
+FIXTURE(prctl_thp_disable_except_madvise)
+{
+	struct thp_settings settings;
+	size_t pmdsize;
+};
+
+FIXTURE_VARIANT(prctl_thp_disable_except_madvise)
+{
+	enum thp_enabled thp_policy;
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_except_madvise, never)
+{
+	.thp_policy = THP_NEVER,
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_except_madvise, madvise)
+{
+	.thp_policy = THP_MADVISE,
+};
+
+FIXTURE_VARIANT_ADD(prctl_thp_disable_except_madvise, always)
+{
+	.thp_policy = THP_ALWAYS,
+};
+
+FIXTURE_SETUP(prctl_thp_disable_except_madvise)
+{
+	if (!thp_available())
+		SKIP(return, "Transparent Hugepages not available\n");
+
+	self->pmdsize = read_pmd_pagesize();
+	if (!self->pmdsize)
+		SKIP(return, "Unable to read PMD size\n");
+
+	if (prctl(PR_SET_THP_DISABLE, 1, PR_THP_DISABLE_EXCEPT_ADVISED, NULL, NULL))
+		SKIP(return, "Unable to set PR_THP_DISABLE_EXCEPT_ADVISED\n");
+
+	thp_save_settings();
+	thp_read_settings(&self->settings);
+	self->settings.thp_enabled = variant->thp_policy;
+	self->settings.hugepages[sz2ord(self->pmdsize, getpagesize())].enabled = THP_INHERIT;
+	thp_write_settings(&self->settings);
+}
+
+FIXTURE_TEARDOWN(prctl_thp_disable_except_madvise)
+{
+	thp_restore_settings();
+}
+
+TEST_F(prctl_thp_disable_except_madvise, nofork)
+{
+	prctl_thp_disable_except_madvise_test(_metadata, self->pmdsize, variant->thp_policy);
+}
+
+TEST_F(prctl_thp_disable_except_madvise, fork)
+{
+	int ret = 0;
+	pid_t pid;
+
+	/* Make sure prctl changes are carried across fork */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (!pid) {
+		prctl_thp_disable_except_madvise_test(_metadata, self->pmdsize,
+						      variant->thp_policy);
+		return;
+	}
+
+	wait(&ret);
+	if (WIFEXITED(ret))
+		ret = WEXITSTATUS(ret);
+	else
+		ret = -EINVAL;
+	ASSERT_EQ(ret, 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/process_madv.c b/tools/testing/selftests/mm/process_madv.c
new file mode 100644
index 000000000000..cd4610baf5d7
--- /dev/null
+++ b/tools/testing/selftests/mm/process_madv.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define _GNU_SOURCE
+#include "kselftest_harness.h"
+#include <errno.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/mman.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <sched.h>
+#include "vm_util.h"
+
+#include "../pidfd/pidfd.h"
+
+FIXTURE(process_madvise)
+{
+	unsigned long page_size;
+	pid_t child_pid;
+	int remote_pidfd;
+	int pidfd;
+};
+
+FIXTURE_SETUP(process_madvise)
+{
+	self->page_size = (unsigned long)sysconf(_SC_PAGESIZE);
+	self->pidfd = PIDFD_SELF;
+	self->remote_pidfd = -1;
+	self->child_pid = -1;
+};
+
+FIXTURE_TEARDOWN_PARENT(process_madvise)
+{
+	/* This teardown is guaranteed to run, even if tests SKIP or ASSERT */
+	if (self->child_pid > 0) {
+		kill(self->child_pid, SIGKILL);
+		waitpid(self->child_pid, NULL, 0);
+	}
+
+	if (self->remote_pidfd >= 0)
+		close(self->remote_pidfd);
+}
+
+static ssize_t sys_process_madvise(int pidfd, const struct iovec *iovec,
+				   size_t vlen, int advice, unsigned int flags)
+{
+	return syscall(__NR_process_madvise, pidfd, iovec, vlen, advice, flags);
+}
+
+/*
+ * This test uses PIDFD_SELF to target the current process. The main
+ * goal is to verify the basic behavior of process_madvise() with
+ * a vector of non-contiguous memory ranges, not its cross-process
+ * capabilities.
+ */
+TEST_F(process_madvise, basic)
+{
+	const unsigned long pagesize = self->page_size;
+	const int madvise_pages = 4;
+	struct iovec vec[madvise_pages];
+	int pidfd = self->pidfd;
+	ssize_t ret;
+	char *map;
+
+	/*
+	 * Create a single large mapping. We will pick pages from this
+	 * mapping to advise on. This ensures we test non-contiguous iovecs.
+	 */
+	map = mmap(NULL, pagesize * 10, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (map == MAP_FAILED)
+		SKIP(return, "mmap failed, not enough memory.\n");
+
+	/* Fill the entire region with a known pattern. */
+	memset(map, 'A', pagesize * 10);
+
+	/*
+	 * Setup the iovec to point to 4 non-contiguous pages
+	 * within the mapping.
+	 */
+	vec[0].iov_base = &map[0 * pagesize];
+	vec[0].iov_len = pagesize;
+	vec[1].iov_base = &map[3 * pagesize];
+	vec[1].iov_len = pagesize;
+	vec[2].iov_base = &map[5 * pagesize];
+	vec[2].iov_len = pagesize;
+	vec[3].iov_base = &map[8 * pagesize];
+	vec[3].iov_len = pagesize;
+
+	ret = sys_process_madvise(pidfd, vec, madvise_pages, MADV_DONTNEED, 0);
+	if (ret == -1 && errno == EPERM)
+		SKIP(return,
+			   "process_madvise() unsupported or permission denied, try running as root.\n");
+	else if (errno == EINVAL)
+		SKIP(return,
+			   "process_madvise() unsupported or parameter invalid, please check arguments.\n");
+
+	/* The call should succeed and report the total bytes processed. */
+	ASSERT_EQ(ret, madvise_pages * pagesize);
+
+	/* Check that advised pages are now zero. */
+	for (int i = 0; i < madvise_pages; i++) {
+		char *advised_page = (char *)vec[i].iov_base;
+
+		/* Content must be 0, not 'A'. */
+		ASSERT_EQ(*advised_page, '\0');
+	}
+
+	/* Check that an un-advised page in between is still 'A'. */
+	char *unadvised_page = &map[1 * pagesize];
+
+	for (int i = 0; i < pagesize; i++)
+		ASSERT_EQ(unadvised_page[i], 'A');
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(map, pagesize * 10), 0);
+}
+
+/*
+ * This test deterministically validates process_madvise() with MADV_COLLAPSE
+ * on a remote process, other advices are difficult to verify reliably.
+ *
+ * The test verifies that a memory region in a child process,
+ * focus on process_madv remote result, only check addresses and lengths.
+ * The correctness of the MADV_COLLAPSE can be found in the relevant test examples in khugepaged.
+ */
+TEST_F(process_madvise, remote_collapse)
+{
+	const unsigned long pagesize = self->page_size;
+	long huge_page_size;
+	int pipe_info[2];
+	ssize_t ret;
+	struct iovec vec;
+
+	struct child_info {
+		pid_t pid;
+		void *map_addr;
+	} info;
+
+	huge_page_size = read_pmd_pagesize();
+	if (huge_page_size <= 0)
+		SKIP(return, "Could not determine a valid huge page size.\n");
+
+	ASSERT_EQ(pipe(pipe_info), 0);
+
+	self->child_pid = fork();
+	ASSERT_NE(self->child_pid, -1);
+
+	if (self->child_pid == 0) {
+		char *map;
+		size_t map_size = 2 * huge_page_size;
+
+		close(pipe_info[0]);
+
+		map = mmap(NULL, map_size, PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+		ASSERT_NE(map, MAP_FAILED);
+
+		/* Fault in as small pages */
+		for (size_t i = 0; i < map_size; i += pagesize)
+			map[i] = 'A';
+
+		/* Send info and pause */
+		info.pid = getpid();
+		info.map_addr = map;
+		ret = write(pipe_info[1], &info, sizeof(info));
+		ASSERT_EQ(ret, sizeof(info));
+		close(pipe_info[1]);
+
+		pause();
+		exit(0);
+	}
+
+	close(pipe_info[1]);
+
+	/* Receive child info */
+	ret = read(pipe_info[0], &info, sizeof(info));
+	if (ret <= 0) {
+		waitpid(self->child_pid, NULL, 0);
+		SKIP(return, "Failed to read child info from pipe.\n");
+	}
+	ASSERT_EQ(ret, sizeof(info));
+	close(pipe_info[0]);
+	self->child_pid = info.pid;
+
+	self->remote_pidfd = syscall(__NR_pidfd_open, self->child_pid, 0);
+	ASSERT_GE(self->remote_pidfd, 0);
+
+	vec.iov_base = info.map_addr;
+	vec.iov_len = huge_page_size;
+
+	ret = sys_process_madvise(self->remote_pidfd, &vec, 1, MADV_COLLAPSE,
+				  0);
+	if (ret == -1) {
+		if (errno == EINVAL)
+			SKIP(return, "PROCESS_MADV_ADVISE is not supported.\n");
+		else if (errno == EPERM)
+			SKIP(return,
+				   "No process_madvise() permissions, try running as root.\n");
+		return;
+	}
+
+	ASSERT_EQ(ret, huge_page_size);
+}
+
+/*
+ * Test process_madvise() with a pidfd for a process that has already
+ * exited to ensure correct error handling.
+ */
+TEST_F(process_madvise, exited_process_pidfd)
+{
+	const unsigned long pagesize = self->page_size;
+	struct iovec vec;
+	char *map;
+	ssize_t ret;
+
+	map = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1,
+		   0);
+	if (map == MAP_FAILED)
+		SKIP(return, "mmap failed, not enough memory.\n");
+
+	vec.iov_base = map;
+	vec.iov_len = pagesize;
+
+	/*
+	 * Using a pidfd for a process that has already exited should fail
+	 * with ESRCH.
+	 */
+	self->child_pid = fork();
+	ASSERT_NE(self->child_pid, -1);
+
+	if (self->child_pid == 0)
+		exit(0);
+
+	self->remote_pidfd = syscall(__NR_pidfd_open, self->child_pid, 0);
+	ASSERT_GE(self->remote_pidfd, 0);
+
+	/* Wait for the child to ensure it has terminated. */
+	waitpid(self->child_pid, NULL, 0);
+
+	ret = sys_process_madvise(self->remote_pidfd, &vec, 1, MADV_DONTNEED,
+				  0);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, ESRCH);
+}
+
+/*
+ * Test process_madvise() with bad pidfds to ensure correct error
+ * handling.
+ */
+TEST_F(process_madvise, bad_pidfd)
+{
+	const unsigned long pagesize = self->page_size;
+	struct iovec vec;
+	char *map;
+	ssize_t ret;
+
+	map = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1,
+		   0);
+	if (map == MAP_FAILED)
+		SKIP(return, "mmap failed, not enough memory.\n");
+
+	vec.iov_base = map;
+	vec.iov_len = pagesize;
+
+	/* Using an invalid fd number (-1) should fail with EBADF. */
+	ret = sys_process_madvise(-1, &vec, 1, MADV_DONTNEED, 0);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EBADF);
+
+	/*
+	 * Using a valid fd that is not a pidfd (e.g. stdin) should fail
+	 * with EBADF.
+	 */
+	ret = sys_process_madvise(STDIN_FILENO, &vec, 1, MADV_DONTNEED, 0);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EBADF);
+}
+
+/*
+ * Test that process_madvise() rejects vlen > UIO_MAXIOV.
+ * The kernel should return -EINVAL when the number of iovecs exceeds 1024.
+ */
+TEST_F(process_madvise, invalid_vlen)
+{
+	const unsigned long pagesize = self->page_size;
+	int pidfd = self->pidfd;
+	struct iovec vec;
+	char *map;
+	ssize_t ret;
+
+	map = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1,
+		   0);
+	if (map == MAP_FAILED)
+		SKIP(return, "mmap failed, not enough memory.\n");
+
+	vec.iov_base = map;
+	vec.iov_len = pagesize;
+
+	ret = sys_process_madvise(pidfd, &vec, 1025, MADV_DONTNEED, 0);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EINVAL);
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(map, pagesize), 0);
+}
+
+/*
+ * Test process_madvise() with an invalid flag value. Currently, only a flag
+ * value of 0 is supported. This test is reserved for the future, e.g., if
+ * synchronous flags are added.
+ */
+TEST_F(process_madvise, flag)
+{
+	const unsigned long pagesize = self->page_size;
+	unsigned int invalid_flag;
+	int pidfd = self->pidfd;
+	struct iovec vec;
+	char *map;
+	ssize_t ret;
+
+	map = mmap(NULL, pagesize, PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1,
+		   0);
+	if (map == MAP_FAILED)
+		SKIP(return, "mmap failed, not enough memory.\n");
+
+	vec.iov_base = map;
+	vec.iov_len = pagesize;
+
+	invalid_flag = 0x80000000;
+
+	ret = sys_process_madvise(pidfd, &vec, 1, MADV_DONTNEED, invalid_flag);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EINVAL);
+
+	/* Cleanup. */
+	ASSERT_EQ(munmap(map, pagesize), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/protection_keys.c b/tools/testing/selftests/mm/protection_keys.c
new file mode 100644
index 000000000000..2085982dba69
--- /dev/null
+++ b/tools/testing/selftests/mm/protection_keys.c
@@ -0,0 +1,1792 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests Memory Protection Keys (see Documentation/core-api/protection-keys.rst)
+ *
+ * There are examples in here of:
+ *  * how to set protection keys on memory
+ *  * how to set/clear bits in pkey registers (the rights register)
+ *  * how to handle SEGV_PKUERR signals and extract pkey-relevant
+ *    information from the siginfo
+ *
+ * Things to add:
+ *	make sure KSM and KSM COW breaking works
+ *	prefault pages in at malloc, or not
+ *	protect MPX bounds tables with protection keys?
+ *	make sure VMA splitting/merging is working correctly
+ *	OOMs can destroy mm->mmap (see exit_mmap()), so make sure it is immune to pkeys
+ *	look for pkey "leaks" where it is still set on a VMA but "freed" back to the kernel
+ *	do a plain mprotect() to a mprotect_pkey() area and make sure the pkey sticks
+ *
+ * Compile like this:
+ *	gcc -mxsave      -o protection_keys    -O2 -g -std=gnu99 -pthread -Wall protection_keys.c -lrt -ldl -lm
+ *	gcc -mxsave -m32 -o protection_keys_32 -O2 -g -std=gnu99 -pthread -Wall protection_keys.c -lrt -ldl -lm
+ */
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__
+#include <errno.h>
+#include <linux/elf.h>
+#include <linux/futex.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <assert.h>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ptrace.h>
+#include <setjmp.h>
+
+#include "pkey-helpers.h"
+
+int iteration_nr = 1;
+int test_nr;
+
+u64 shadow_pkey_reg;
+int dprint_in_signal;
+
+noinline int read_ptr(int *ptr)
+{
+	/* Keep GCC from optimizing this away somehow */
+	barrier();
+	return *ptr;
+}
+
+static void cat_into_file(char *str, char *file)
+{
+	int fd = open(file, O_RDWR);
+	int ret;
+
+	dprintf2("%s(): writing '%s' to '%s'\n", __func__, str, file);
+	/*
+	 * these need to be raw because they are called under
+	 * pkey_assert()
+	 */
+	if (fd < 0) {
+		fprintf(stderr, "error opening '%s'\n", str);
+		perror("error: ");
+		exit(__LINE__);
+	}
+
+	ret = write(fd, str, strlen(str));
+	if (ret != strlen(str)) {
+		perror("write to file failed");
+		fprintf(stderr, "filename: '%s' str: '%s'\n", file, str);
+		exit(__LINE__);
+	}
+	close(fd);
+}
+
+#if CONTROL_TRACING > 0
+static int warned_tracing;
+static int tracing_root_ok(void)
+{
+	if (geteuid() != 0) {
+		if (!warned_tracing)
+			fprintf(stderr, "WARNING: not run as root, "
+					"can not do tracing control\n");
+		warned_tracing = 1;
+		return 0;
+	}
+	return 1;
+}
+#endif
+
+static void tracing_on(void)
+{
+#if CONTROL_TRACING > 0
+#define TRACEDIR "/sys/kernel/tracing"
+	char pidstr[32];
+
+	if (!tracing_root_ok())
+		return;
+
+	sprintf(pidstr, "%d", getpid());
+	cat_into_file("0", TRACEDIR "/tracing_on");
+	cat_into_file("\n", TRACEDIR "/trace");
+	if (1) {
+		cat_into_file("function_graph", TRACEDIR "/current_tracer");
+		cat_into_file("1", TRACEDIR "/options/funcgraph-proc");
+	} else {
+		cat_into_file("nop", TRACEDIR "/current_tracer");
+	}
+	cat_into_file(pidstr, TRACEDIR "/set_ftrace_pid");
+	cat_into_file("1", TRACEDIR "/tracing_on");
+	dprintf1("enabled tracing\n");
+#endif
+}
+
+static void tracing_off(void)
+{
+#if CONTROL_TRACING > 0
+	if (!tracing_root_ok())
+		return;
+	cat_into_file("0", "/sys/kernel/tracing/tracing_on");
+#endif
+}
+
+void abort_hooks(void)
+{
+	fprintf(stderr, "running %s()...\n", __func__);
+	tracing_off();
+#ifdef SLEEP_ON_ABORT
+	sleep(SLEEP_ON_ABORT);
+#endif
+}
+
+/*
+ * This attempts to have roughly a page of instructions followed by a few
+ * instructions that do a write, and another page of instructions.  That
+ * way, we are pretty sure that the write is in the second page of
+ * instructions and has at least a page of padding behind it.
+ *
+ * *That* lets us be sure to madvise() away the write instruction, which
+ * will then fault, which makes sure that the fault code handles
+ * execute-only memory properly.
+ */
+#if defined(__powerpc64__) || defined(__aarch64__)
+/* This way, both 4K and 64K alignment are maintained */
+__attribute__((__aligned__(65536)))
+#else
+__attribute__((__aligned__(PAGE_SIZE)))
+#endif
+static void lots_o_noops_around_write(int *write_to_me)
+{
+	dprintf3("running %s()\n", __func__);
+	__page_o_noops();
+	/* Assume this happens in the second page of instructions: */
+	*write_to_me = __LINE__;
+	/* pad out by another page: */
+	__page_o_noops();
+	dprintf3("%s() done\n", __func__);
+}
+
+static void dump_mem(void *dumpme, int len_bytes)
+{
+	char *c = (void *)dumpme;
+	int i;
+
+	for (i = 0; i < len_bytes; i += sizeof(u64)) {
+		u64 *ptr = (u64 *)(c + i);
+		dprintf1("dump[%03d][@%p]: %016llx\n", i, ptr, *ptr);
+	}
+}
+
+static u32 hw_pkey_get(int pkey, unsigned long flags)
+{
+	u64 pkey_reg = __read_pkey_reg();
+
+	dprintf1("%s(pkey=%d, flags=%lx) = %x / %d\n",
+			__func__, pkey, flags, 0, 0);
+	dprintf2("%s() raw pkey_reg: %016llx\n", __func__, pkey_reg);
+
+	return (u32) get_pkey_bits(pkey_reg, pkey);
+}
+
+static int hw_pkey_set(int pkey, unsigned long rights, unsigned long flags)
+{
+	u32 mask = (PKEY_DISABLE_ACCESS|PKEY_DISABLE_WRITE);
+	u64 old_pkey_reg = __read_pkey_reg();
+	u64 new_pkey_reg;
+
+	/* make sure that 'rights' only contains the bits we expect: */
+	assert(!(rights & ~mask));
+
+	/* modify bits accordingly in old pkey_reg and assign it */
+	new_pkey_reg = set_pkey_bits(old_pkey_reg, pkey, rights);
+
+	__write_pkey_reg(new_pkey_reg);
+
+	dprintf3("%s(pkey=%d, rights=%lx, flags=%lx) = %x"
+		" pkey_reg now: %016llx old_pkey_reg: %016llx\n",
+		__func__, pkey, rights, flags, 0, __read_pkey_reg(),
+		old_pkey_reg);
+	return 0;
+}
+
+static void pkey_disable_set(int pkey, int flags)
+{
+	unsigned long syscall_flags = 0;
+	int ret;
+	int pkey_rights;
+
+	dprintf1("START->%s(%d, 0x%x)\n", __func__,
+		pkey, flags);
+	pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
+
+	pkey_rights = hw_pkey_get(pkey, syscall_flags);
+
+	dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
+			pkey, pkey, pkey_rights);
+
+	pkey_assert(pkey_rights >= 0);
+
+	pkey_rights |= flags;
+
+	ret = hw_pkey_set(pkey, pkey_rights, syscall_flags);
+	assert(!ret);
+	/* pkey_reg and flags have the same format */
+	shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, pkey, pkey_rights);
+	dprintf1("%s(%d) shadow: 0x%016llx\n",
+		__func__, pkey, shadow_pkey_reg);
+
+	pkey_assert(ret >= 0);
+
+	pkey_rights = hw_pkey_get(pkey, syscall_flags);
+	dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
+			pkey, pkey, pkey_rights);
+
+	dprintf1("%s(%d) pkey_reg: 0x%016llx\n",
+		__func__, pkey, read_pkey_reg());
+	dprintf1("END<---%s(%d, 0x%x)\n", __func__,
+		pkey, flags);
+}
+
+static void pkey_disable_clear(int pkey, int flags)
+{
+	unsigned long syscall_flags = 0;
+	int ret;
+	int pkey_rights = hw_pkey_get(pkey, syscall_flags);
+
+	pkey_assert(flags & (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE));
+
+	dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
+			pkey, pkey, pkey_rights);
+	pkey_assert(pkey_rights >= 0);
+
+	pkey_rights &= ~flags;
+
+	ret = hw_pkey_set(pkey, pkey_rights, 0);
+	shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, pkey, pkey_rights);
+	pkey_assert(ret >= 0);
+
+	pkey_rights = hw_pkey_get(pkey, syscall_flags);
+	dprintf1("%s(%d) hw_pkey_get(%d): %x\n", __func__,
+			pkey, pkey, pkey_rights);
+
+	dprintf1("%s(%d) pkey_reg: 0x%016llx\n", __func__,
+			pkey, read_pkey_reg());
+}
+
+__maybe_unused static void pkey_write_allow(int pkey)
+{
+	pkey_disable_clear(pkey, PKEY_DISABLE_WRITE);
+}
+__maybe_unused static void pkey_write_deny(int pkey)
+{
+	pkey_disable_set(pkey, PKEY_DISABLE_WRITE);
+}
+__maybe_unused static void pkey_access_allow(int pkey)
+{
+	pkey_disable_clear(pkey, PKEY_DISABLE_ACCESS);
+}
+__maybe_unused static void pkey_access_deny(int pkey)
+{
+	pkey_disable_set(pkey, PKEY_DISABLE_ACCESS);
+}
+
+static char *si_code_str(int si_code)
+{
+	if (si_code == SEGV_MAPERR)
+		return "SEGV_MAPERR";
+	if (si_code == SEGV_ACCERR)
+		return "SEGV_ACCERR";
+	if (si_code == SEGV_BNDERR)
+		return "SEGV_BNDERR";
+	if (si_code == SEGV_PKUERR)
+		return "SEGV_PKUERR";
+	return "UNKNOWN";
+}
+
+static int pkey_faults;
+static int last_si_pkey = -1;
+static void signal_handler(int signum, siginfo_t *si, void *vucontext)
+{
+	ucontext_t *uctxt = vucontext;
+	int trapno;
+	unsigned long ip;
+#ifdef MCONTEXT_FPREGS
+	char *fpregs;
+#endif
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	u32 *pkey_reg_ptr;
+	int pkey_reg_offset;
+#endif /* arch */
+	u64 siginfo_pkey;
+	u32 *si_pkey_ptr;
+
+	dprint_in_signal = 1;
+	dprintf1(">>>>===============SIGSEGV============================\n");
+	dprintf1("%s()::%d, pkey_reg: 0x%016llx shadow: %016llx\n",
+			__func__, __LINE__,
+			__read_pkey_reg(), shadow_pkey_reg);
+
+	trapno = MCONTEXT_TRAPNO(uctxt->uc_mcontext);
+	ip = MCONTEXT_IP(uctxt->uc_mcontext);
+#ifdef MCONTEXT_FPREGS
+	fpregs = (char *) uctxt->uc_mcontext.fpregs;
+#endif
+
+	dprintf2("%s() trapno: %d ip: 0x%016lx info->si_code: %s/%d\n",
+			__func__, trapno, ip, si_code_str(si->si_code),
+			si->si_code);
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+#ifdef __i386__
+	/*
+	 * 32-bit has some extra padding so that userspace can tell whether
+	 * the XSTATE header is present in addition to the "legacy" FPU
+	 * state.  We just assume that it is here.
+	 */
+	fpregs += 0x70;
+#endif /* i386 */
+	pkey_reg_offset = pkey_reg_xstate_offset();
+	pkey_reg_ptr = (void *)(&fpregs[pkey_reg_offset]);
+
+	/*
+	 * If we got a PKEY fault, we *HAVE* to have at least one bit set in
+	 * here.
+	 */
+	dprintf1("pkey_reg_xstate_offset: %d\n", pkey_reg_xstate_offset());
+	if (DEBUG_LEVEL > 4)
+		dump_mem(pkey_reg_ptr - 128, 256);
+	pkey_assert(*pkey_reg_ptr);
+#endif /* arch */
+
+	dprintf1("siginfo: %p\n", si);
+#ifdef MCONTEXT_FPREGS
+	dprintf1(" fpregs: %p\n", fpregs);
+#endif
+
+	if ((si->si_code == SEGV_MAPERR) ||
+	    (si->si_code == SEGV_ACCERR) ||
+	    (si->si_code == SEGV_BNDERR)) {
+		printf("non-PK si_code, exiting...\n");
+		exit(4);
+	}
+
+	si_pkey_ptr = siginfo_get_pkey_ptr(si);
+	dprintf1("si_pkey_ptr: %p\n", si_pkey_ptr);
+	dump_mem((u8 *)si_pkey_ptr - 8, 24);
+	siginfo_pkey = *si_pkey_ptr;
+	pkey_assert(siginfo_pkey < NR_PKEYS);
+	last_si_pkey = siginfo_pkey;
+
+	/*
+	 * need __read_pkey_reg() version so we do not do shadow_pkey_reg
+	 * checking
+	 */
+	dprintf1("signal pkey_reg from  pkey_reg: %016llx\n",
+			__read_pkey_reg());
+	dprintf1("pkey from siginfo: %016llx\n", siginfo_pkey);
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	dprintf1("signal pkey_reg from xsave: %08x\n", *pkey_reg_ptr);
+	*(u64 *)pkey_reg_ptr = 0x00000000;
+	dprintf1("WARNING: set PKEY_REG=0 to allow faulting instruction to continue\n");
+#elif defined(__powerpc64__) /* arch */
+	/* restore access and let the faulting instruction continue */
+	pkey_access_allow(siginfo_pkey);
+#elif defined(__aarch64__)
+	aarch64_write_signal_pkey(uctxt, PKEY_REG_ALLOW_ALL);
+#endif /* arch */
+	pkey_faults++;
+	dprintf1("<<<<==================================================\n");
+	dprint_in_signal = 0;
+}
+
+static void sig_chld(int x)
+{
+	dprint_in_signal = 1;
+	dprintf2("[%d] SIGCHLD: %d\n", getpid(), x);
+	dprint_in_signal = 0;
+}
+
+static void setup_sigsegv_handler(void)
+{
+	int r, rs;
+	struct sigaction newact;
+	struct sigaction oldact;
+
+	/* #PF is mapped to sigsegv */
+	int signum  = SIGSEGV;
+
+	newact.sa_handler = 0;
+	newact.sa_sigaction = signal_handler;
+
+	/*sigset_t - signals to block while in the handler */
+	/* get the old signal mask. */
+	rs = sigprocmask(SIG_SETMASK, 0, &newact.sa_mask);
+	pkey_assert(rs == 0);
+
+	/* call sa_sigaction, not sa_handler*/
+	newact.sa_flags = SA_SIGINFO;
+
+	newact.sa_restorer = 0;  /* void(*)(), obsolete */
+	r = sigaction(signum, &newact, &oldact);
+	r = sigaction(SIGALRM, &newact, &oldact);
+	pkey_assert(r == 0);
+}
+
+static void setup_handlers(void)
+{
+	signal(SIGCHLD, &sig_chld);
+	setup_sigsegv_handler();
+}
+
+static pid_t fork_lazy_child(void)
+{
+	pid_t forkret;
+
+	forkret = fork();
+	pkey_assert(forkret >= 0);
+	dprintf3("[%d] fork() ret: %d\n", getpid(), forkret);
+
+	if (!forkret) {
+		/* in the child */
+		while (1) {
+			dprintf1("child sleeping...\n");
+			sleep(30);
+		}
+	}
+	return forkret;
+}
+
+static int alloc_pkey(void)
+{
+	int ret;
+	unsigned long init_val = PKEY_UNRESTRICTED;
+
+	dprintf1("%s()::%d, pkey_reg: 0x%016llx shadow: %016llx\n",
+			__func__, __LINE__, __read_pkey_reg(), shadow_pkey_reg);
+	ret = sys_pkey_alloc(0, init_val);
+	/*
+	 * pkey_alloc() sets PKEY register, so we need to reflect it in
+	 * shadow_pkey_reg:
+	 */
+	dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			" shadow: 0x%016llx\n",
+			__func__, __LINE__, ret, __read_pkey_reg(),
+			shadow_pkey_reg);
+	if (ret > 0) {
+		/* clear both the bits: */
+		shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, ret,
+						~PKEY_MASK);
+		dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+				" shadow: 0x%016llx\n",
+				__func__,
+				__LINE__, ret, __read_pkey_reg(),
+				shadow_pkey_reg);
+		/*
+		 * move the new state in from init_val
+		 * (remember, we cheated and init_val == pkey_reg format)
+		 */
+		shadow_pkey_reg = set_pkey_bits(shadow_pkey_reg, ret,
+						init_val);
+	}
+	dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			" shadow: 0x%016llx\n",
+			__func__, __LINE__, ret, __read_pkey_reg(),
+			shadow_pkey_reg);
+	dprintf1("%s()::%d errno: %d\n", __func__, __LINE__, errno);
+	/* for shadow checking: */
+	read_pkey_reg();
+	dprintf4("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+		 " shadow: 0x%016llx\n",
+		__func__, __LINE__, ret, __read_pkey_reg(),
+		shadow_pkey_reg);
+	return ret;
+}
+
+/*
+ * I had a bug where pkey bits could be set by mprotect() but
+ * not cleared.  This ensures we get lots of random bit sets
+ * and clears on the vma and pte pkey bits.
+ */
+static int alloc_random_pkey(void)
+{
+	int max_nr_pkey_allocs;
+	int ret;
+	int i;
+	int alloced_pkeys[NR_PKEYS];
+	int nr_alloced = 0;
+	int random_index;
+	memset(alloced_pkeys, 0, sizeof(alloced_pkeys));
+
+	/* allocate every possible key and make a note of which ones we got */
+	max_nr_pkey_allocs = NR_PKEYS;
+	for (i = 0; i < max_nr_pkey_allocs; i++) {
+		int new_pkey = alloc_pkey();
+		if (new_pkey < 0)
+			break;
+		alloced_pkeys[nr_alloced++] = new_pkey;
+	}
+
+	pkey_assert(nr_alloced > 0);
+	/* select a random one out of the allocated ones */
+	random_index = rand() % nr_alloced;
+	ret = alloced_pkeys[random_index];
+	/* now zero it out so we don't free it next */
+	alloced_pkeys[random_index] = 0;
+
+	/* go through the allocated ones that we did not want and free them */
+	for (i = 0; i < nr_alloced; i++) {
+		int free_ret;
+		if (!alloced_pkeys[i])
+			continue;
+		free_ret = sys_pkey_free(alloced_pkeys[i]);
+		pkey_assert(!free_ret);
+	}
+	dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			 " shadow: 0x%016llx\n", __func__,
+			__LINE__, ret, __read_pkey_reg(), shadow_pkey_reg);
+	return ret;
+}
+
+int mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,
+		unsigned long pkey)
+{
+	int nr_iterations = random() % 100;
+	int ret;
+
+	while (nr_iterations-- >= 0) {
+		int rpkey = alloc_random_pkey();
+		ret = sys_mprotect_pkey(ptr, size, orig_prot, pkey);
+		dprintf1("sys_mprotect_pkey(%p, %zx, prot=0x%lx, pkey=%ld) ret: %d\n",
+				ptr, size, orig_prot, pkey, ret);
+
+		dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			" shadow: 0x%016llx\n",
+			__func__, __LINE__, ret, __read_pkey_reg(),
+			shadow_pkey_reg);
+		sys_pkey_free(rpkey);
+		dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			" shadow: 0x%016llx\n",
+			__func__, __LINE__, ret, __read_pkey_reg(),
+			shadow_pkey_reg);
+	}
+	pkey_assert(pkey < NR_PKEYS);
+
+	ret = sys_mprotect_pkey(ptr, size, orig_prot, pkey);
+	dprintf1("mprotect_pkey(%p, %zx, prot=0x%lx, pkey=%ld) ret: %d\n",
+			ptr, size, orig_prot, pkey, ret);
+	pkey_assert(!ret);
+	dprintf1("%s()::%d, ret: %d pkey_reg: 0x%016llx"
+			" shadow: 0x%016llx\n", __func__,
+			__LINE__, ret, __read_pkey_reg(), shadow_pkey_reg);
+	return ret;
+}
+
+struct pkey_malloc_record {
+	void *ptr;
+	long size;
+	int prot;
+};
+struct pkey_malloc_record *pkey_malloc_records;
+struct pkey_malloc_record *pkey_last_malloc_record;
+static long nr_pkey_malloc_records;
+void record_pkey_malloc(void *ptr, long size, int prot)
+{
+	long i;
+	struct pkey_malloc_record *rec = NULL;
+
+	for (i = 0; i < nr_pkey_malloc_records; i++) {
+		rec = &pkey_malloc_records[i];
+		/* find a free record */
+		if (rec)
+			break;
+	}
+	if (!rec) {
+		/* every record is full */
+		size_t old_nr_records = nr_pkey_malloc_records;
+		size_t new_nr_records = (nr_pkey_malloc_records * 2 + 1);
+		size_t new_size = new_nr_records * sizeof(struct pkey_malloc_record);
+		dprintf2("new_nr_records: %zd\n", new_nr_records);
+		dprintf2("new_size: %zd\n", new_size);
+		pkey_malloc_records = realloc(pkey_malloc_records, new_size);
+		pkey_assert(pkey_malloc_records != NULL);
+		rec = &pkey_malloc_records[nr_pkey_malloc_records];
+		/*
+		 * realloc() does not initialize memory, so zero it from
+		 * the first new record all the way to the end.
+		 */
+		for (i = 0; i < new_nr_records - old_nr_records; i++)
+			memset(rec + i, 0, sizeof(*rec));
+	}
+	dprintf3("filling malloc record[%d/%p]: {%p, %ld}\n",
+		(int)(rec - pkey_malloc_records), rec, ptr, size);
+	rec->ptr = ptr;
+	rec->size = size;
+	rec->prot = prot;
+	pkey_last_malloc_record = rec;
+	nr_pkey_malloc_records++;
+}
+
+static void free_pkey_malloc(void *ptr)
+{
+	long i;
+	int ret;
+	dprintf3("%s(%p)\n", __func__, ptr);
+	for (i = 0; i < nr_pkey_malloc_records; i++) {
+		struct pkey_malloc_record *rec = &pkey_malloc_records[i];
+		dprintf4("looking for ptr %p at record[%ld/%p]: {%p, %ld}\n",
+				ptr, i, rec, rec->ptr, rec->size);
+		if ((ptr <  rec->ptr) ||
+		    (ptr >= rec->ptr + rec->size))
+			continue;
+
+		dprintf3("found ptr %p at record[%ld/%p]: {%p, %ld}\n",
+				ptr, i, rec, rec->ptr, rec->size);
+		nr_pkey_malloc_records--;
+		ret = munmap(rec->ptr, rec->size);
+		dprintf3("munmap ret: %d\n", ret);
+		pkey_assert(!ret);
+		dprintf3("clearing rec->ptr, rec: %p\n", rec);
+		rec->ptr = NULL;
+		dprintf3("done clearing rec->ptr, rec: %p\n", rec);
+		return;
+	}
+	pkey_assert(false);
+}
+
+static void *malloc_pkey_with_mprotect(long size, int prot, u16 pkey)
+{
+	void *ptr;
+	int ret;
+
+	read_pkey_reg();
+	dprintf1("doing %s(size=%ld, prot=0x%x, pkey=%d)\n", __func__,
+			size, prot, pkey);
+	pkey_assert(pkey < NR_PKEYS);
+	ptr = mmap(NULL, size, prot, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	pkey_assert(ptr != (void *)-1);
+	ret = mprotect_pkey((void *)ptr, PAGE_SIZE, prot, pkey);
+	pkey_assert(!ret);
+	record_pkey_malloc(ptr, size, prot);
+	read_pkey_reg();
+
+	dprintf1("%s() for pkey %d @ %p\n", __func__, pkey, ptr);
+	return ptr;
+}
+
+static void *malloc_pkey_anon_huge(long size, int prot, u16 pkey)
+{
+	int ret;
+	void *ptr;
+
+	dprintf1("doing %s(size=%ld, prot=0x%x, pkey=%d)\n", __func__,
+			size, prot, pkey);
+	/*
+	 * Guarantee we can fit at least one huge page in the resulting
+	 * allocation by allocating space for 2:
+	 */
+	size = ALIGN_UP(size, HPAGE_SIZE * 2);
+	ptr = mmap(NULL, size, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	pkey_assert(ptr != (void *)-1);
+	record_pkey_malloc(ptr, size, prot);
+	mprotect_pkey(ptr, size, prot, pkey);
+
+	dprintf1("unaligned ptr: %p\n", ptr);
+	ptr = ALIGN_PTR_UP(ptr, HPAGE_SIZE);
+	dprintf1("  aligned ptr: %p\n", ptr);
+	ret = madvise(ptr, HPAGE_SIZE, MADV_HUGEPAGE);
+	dprintf1("MADV_HUGEPAGE ret: %d\n", ret);
+	ret = madvise(ptr, HPAGE_SIZE, MADV_WILLNEED);
+	dprintf1("MADV_WILLNEED ret: %d\n", ret);
+	memset(ptr, 0, HPAGE_SIZE);
+
+	dprintf1("mmap()'d thp for pkey %d @ %p\n", pkey, ptr);
+	return ptr;
+}
+
+static int hugetlb_setup_ok;
+#define SYSFS_FMT_NR_HUGE_PAGES "/sys/kernel/mm/hugepages/hugepages-%ldkB/nr_hugepages"
+#define GET_NR_HUGE_PAGES 10
+static void setup_hugetlbfs(void)
+{
+	int err;
+	int fd;
+	char buf[256];
+	long hpagesz_kb;
+	long hpagesz_mb;
+
+	if (geteuid() != 0) {
+		fprintf(stderr, "WARNING: not run as root, can not do hugetlb test\n");
+		return;
+	}
+
+	cat_into_file(__stringify(GET_NR_HUGE_PAGES), "/proc/sys/vm/nr_hugepages");
+
+	/*
+	 * Now go make sure that we got the pages and that they
+	 * are PMD-level pages. Someone might have made PUD-level
+	 * pages the default.
+	 */
+	hpagesz_kb = HPAGE_SIZE / 1024;
+	hpagesz_mb = hpagesz_kb / 1024;
+	sprintf(buf, SYSFS_FMT_NR_HUGE_PAGES, hpagesz_kb);
+	fd = open(buf, O_RDONLY);
+	if (fd < 0) {
+		fprintf(stderr, "opening sysfs %ldM hugetlb config: %s\n",
+			hpagesz_mb, strerror(errno));
+		return;
+	}
+
+	/* -1 to guarantee leaving the trailing \0 */
+	err = read(fd, buf, sizeof(buf)-1);
+	close(fd);
+	if (err <= 0) {
+		fprintf(stderr, "reading sysfs %ldM hugetlb config: %s\n",
+			hpagesz_mb, strerror(errno));
+		return;
+	}
+
+	if (atoi(buf) != GET_NR_HUGE_PAGES) {
+		fprintf(stderr, "could not confirm %ldM pages, got: '%s' expected %d\n",
+			hpagesz_mb, buf, GET_NR_HUGE_PAGES);
+		return;
+	}
+
+	hugetlb_setup_ok = 1;
+}
+
+static void *malloc_pkey_hugetlb(long size, int prot, u16 pkey)
+{
+	void *ptr;
+	int flags = MAP_ANONYMOUS|MAP_PRIVATE|MAP_HUGETLB;
+
+	if (!hugetlb_setup_ok)
+		return PTR_ERR_ENOTSUP;
+
+	dprintf1("doing %s(%ld, %x, %x)\n", __func__, size, prot, pkey);
+	size = ALIGN_UP(size, HPAGE_SIZE * 2);
+	pkey_assert(pkey < NR_PKEYS);
+	ptr = mmap(NULL, size, PROT_NONE, flags, -1, 0);
+	pkey_assert(ptr != (void *)-1);
+	mprotect_pkey(ptr, size, prot, pkey);
+
+	record_pkey_malloc(ptr, size, prot);
+
+	dprintf1("mmap()'d hugetlbfs for pkey %d @ %p\n", pkey, ptr);
+	return ptr;
+}
+
+static void *(*pkey_malloc[])(long size, int prot, u16 pkey) = {
+
+	malloc_pkey_with_mprotect,
+	malloc_pkey_with_mprotect_subpage,
+	malloc_pkey_anon_huge,
+	malloc_pkey_hugetlb
+};
+
+static void *malloc_pkey(long size, int prot, u16 pkey)
+{
+	void *ret;
+	static int malloc_type;
+	int nr_malloc_types = ARRAY_SIZE(pkey_malloc);
+
+	pkey_assert(pkey < NR_PKEYS);
+
+	while (1) {
+		pkey_assert(malloc_type < nr_malloc_types);
+
+		ret = pkey_malloc[malloc_type](size, prot, pkey);
+		pkey_assert(ret != (void *)-1);
+
+		malloc_type++;
+		if (malloc_type >= nr_malloc_types)
+			malloc_type = (random()%nr_malloc_types);
+
+		/* try again if the malloc_type we tried is unsupported */
+		if (ret == PTR_ERR_ENOTSUP)
+			continue;
+
+		break;
+	}
+
+	dprintf3("%s(%ld, prot=%x, pkey=%x) returning: %p\n", __func__,
+			size, prot, pkey, ret);
+	return ret;
+}
+
+static int last_pkey_faults;
+#define UNKNOWN_PKEY -2
+void expected_pkey_fault(int pkey)
+{
+	dprintf2("%s(): last_pkey_faults: %d pkey_faults: %d\n",
+			__func__, last_pkey_faults, pkey_faults);
+	dprintf2("%s(%d): last_si_pkey: %d\n", __func__, pkey, last_si_pkey);
+	pkey_assert(last_pkey_faults + 1 == pkey_faults);
+
+       /*
+	* For exec-only memory, we do not know the pkey in
+	* advance, so skip this check.
+	*/
+	if (pkey != UNKNOWN_PKEY)
+		pkey_assert(last_si_pkey == pkey);
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	/*
+	 * The signal handler shold have cleared out PKEY register to let the
+	 * test program continue.  We now have to restore it.
+	 */
+	if (__read_pkey_reg() != 0)
+#elif defined(__aarch64__)
+	if (__read_pkey_reg() != PKEY_REG_ALLOW_ALL)
+#else
+	if (__read_pkey_reg() != shadow_pkey_reg)
+#endif /* arch */
+		pkey_assert(0);
+
+	__write_pkey_reg(shadow_pkey_reg);
+	dprintf1("%s() set pkey_reg=%016llx to restore state after signal "
+		       "nuked it\n", __func__, shadow_pkey_reg);
+	last_pkey_faults = pkey_faults;
+	last_si_pkey = -1;
+}
+
+#define do_not_expect_pkey_fault(msg)	do {			\
+	if (last_pkey_faults != pkey_faults)			\
+		dprintf0("unexpected PKey fault: %s\n", msg);	\
+	pkey_assert(last_pkey_faults == pkey_faults);		\
+} while (0)
+
+static int test_fds[10] = { -1 };
+static int nr_test_fds;
+static void __save_test_fd(int fd)
+{
+	pkey_assert(fd >= 0);
+	pkey_assert(nr_test_fds < ARRAY_SIZE(test_fds));
+	test_fds[nr_test_fds] = fd;
+	nr_test_fds++;
+}
+
+static int get_test_read_fd(void)
+{
+	int test_fd = open("/etc/passwd", O_RDONLY);
+	__save_test_fd(test_fd);
+	return test_fd;
+}
+
+static void close_test_fds(void)
+{
+	int i;
+
+	for (i = 0; i < nr_test_fds; i++) {
+		if (test_fds[i] < 0)
+			continue;
+		close(test_fds[i]);
+		test_fds[i] = -1;
+	}
+	nr_test_fds = 0;
+}
+
+static void test_pkey_alloc_free_attach_pkey0(int *ptr, u16 pkey)
+{
+	int i, err;
+	int max_nr_pkey_allocs;
+	int alloced_pkeys[NR_PKEYS];
+	int nr_alloced = 0;
+	long size;
+
+	pkey_assert(pkey_last_malloc_record);
+	size = pkey_last_malloc_record->size;
+	/*
+	 * This is a bit of a hack.  But mprotect() requires
+	 * huge-page-aligned sizes when operating on hugetlbfs.
+	 * So, make sure that we use something that's a multiple
+	 * of a huge page when we can.
+	 */
+	if (size >= HPAGE_SIZE)
+		size = HPAGE_SIZE;
+
+	/* allocate every possible key and make sure key-0 never got allocated */
+	max_nr_pkey_allocs = NR_PKEYS;
+	for (i = 0; i < max_nr_pkey_allocs; i++) {
+		int new_pkey = alloc_pkey();
+		pkey_assert(new_pkey != 0);
+
+		if (new_pkey < 0)
+			break;
+		alloced_pkeys[nr_alloced++] = new_pkey;
+	}
+	/* free all the allocated keys */
+	for (i = 0; i < nr_alloced; i++) {
+		int free_ret;
+
+		if (!alloced_pkeys[i])
+			continue;
+		free_ret = sys_pkey_free(alloced_pkeys[i]);
+		pkey_assert(!free_ret);
+	}
+
+	/* attach key-0 in various modes */
+	err = sys_mprotect_pkey(ptr, size, PROT_READ, 0);
+	pkey_assert(!err);
+	err = sys_mprotect_pkey(ptr, size, PROT_WRITE, 0);
+	pkey_assert(!err);
+	err = sys_mprotect_pkey(ptr, size, PROT_EXEC, 0);
+	pkey_assert(!err);
+	err = sys_mprotect_pkey(ptr, size, PROT_READ|PROT_WRITE, 0);
+	pkey_assert(!err);
+	err = sys_mprotect_pkey(ptr, size, PROT_READ|PROT_WRITE|PROT_EXEC, 0);
+	pkey_assert(!err);
+}
+
+static void test_read_of_write_disabled_region(int *ptr, u16 pkey)
+{
+	int ptr_contents;
+
+	dprintf1("disabling write access to PKEY[1], doing read\n");
+	pkey_write_deny(pkey);
+	ptr_contents = read_ptr(ptr);
+	dprintf1("*ptr: %d\n", ptr_contents);
+	dprintf1("\n");
+}
+static void test_read_of_access_disabled_region(int *ptr, u16 pkey)
+{
+	int ptr_contents;
+
+	dprintf1("disabling access to PKEY[%02d], doing read @ %p\n", pkey, ptr);
+	read_pkey_reg();
+	pkey_access_deny(pkey);
+	ptr_contents = read_ptr(ptr);
+	dprintf1("*ptr: %d\n", ptr_contents);
+	expected_pkey_fault(pkey);
+}
+
+static void test_read_of_access_disabled_region_with_page_already_mapped(int *ptr,
+		u16 pkey)
+{
+	int ptr_contents;
+
+	dprintf1("disabling access to PKEY[%02d], doing read @ %p\n",
+				pkey, ptr);
+	ptr_contents = read_ptr(ptr);
+	dprintf1("reading ptr before disabling the read : %d\n",
+			ptr_contents);
+	read_pkey_reg();
+	pkey_access_deny(pkey);
+	ptr_contents = read_ptr(ptr);
+	dprintf1("*ptr: %d\n", ptr_contents);
+	expected_pkey_fault(pkey);
+}
+
+static void test_write_of_write_disabled_region_with_page_already_mapped(int *ptr,
+		u16 pkey)
+{
+	*ptr = __LINE__;
+	dprintf1("disabling write access; after accessing the page, "
+		"to PKEY[%02d], doing write\n", pkey);
+	pkey_write_deny(pkey);
+	*ptr = __LINE__;
+	expected_pkey_fault(pkey);
+}
+
+static void test_write_of_write_disabled_region(int *ptr, u16 pkey)
+{
+	dprintf1("disabling write access to PKEY[%02d], doing write\n", pkey);
+	pkey_write_deny(pkey);
+	*ptr = __LINE__;
+	expected_pkey_fault(pkey);
+}
+static void test_write_of_access_disabled_region(int *ptr, u16 pkey)
+{
+	dprintf1("disabling access to PKEY[%02d], doing write\n", pkey);
+	pkey_access_deny(pkey);
+	*ptr = __LINE__;
+	expected_pkey_fault(pkey);
+}
+
+static void test_write_of_access_disabled_region_with_page_already_mapped(int *ptr,
+			u16 pkey)
+{
+	*ptr = __LINE__;
+	dprintf1("disabling access; after accessing the page, "
+		" to PKEY[%02d], doing write\n", pkey);
+	pkey_access_deny(pkey);
+	*ptr = __LINE__;
+	expected_pkey_fault(pkey);
+}
+
+static void test_kernel_write_of_access_disabled_region(int *ptr, u16 pkey)
+{
+	int ret;
+	int test_fd = get_test_read_fd();
+
+	dprintf1("disabling access to PKEY[%02d], "
+		 "having kernel read() to buffer\n", pkey);
+	pkey_access_deny(pkey);
+	ret = read(test_fd, ptr, 1);
+	dprintf1("read ret: %d\n", ret);
+	pkey_assert(ret);
+}
+
+static void test_kernel_write_of_write_disabled_region(int *ptr, u16 pkey)
+{
+	int ret;
+	int test_fd = get_test_read_fd();
+
+	pkey_write_deny(pkey);
+	ret = read(test_fd, ptr, 100);
+	dprintf1("read ret: %d\n", ret);
+	if (ret < 0 && (DEBUG_LEVEL > 0))
+		perror("verbose read result (OK for this to be bad)");
+	pkey_assert(ret);
+}
+
+static void test_kernel_gup_of_access_disabled_region(int *ptr, u16 pkey)
+{
+	int pipe_ret, vmsplice_ret;
+	struct iovec iov;
+	int pipe_fds[2];
+
+	pipe_ret = pipe(pipe_fds);
+
+	pkey_assert(pipe_ret == 0);
+	dprintf1("disabling access to PKEY[%02d], "
+		 "having kernel vmsplice from buffer\n", pkey);
+	pkey_access_deny(pkey);
+	iov.iov_base = ptr;
+	iov.iov_len = PAGE_SIZE;
+	vmsplice_ret = vmsplice(pipe_fds[1], &iov, 1, SPLICE_F_GIFT);
+	dprintf1("vmsplice() ret: %d\n", vmsplice_ret);
+	pkey_assert(vmsplice_ret == -1);
+
+	close(pipe_fds[0]);
+	close(pipe_fds[1]);
+}
+
+static void test_kernel_gup_write_to_write_disabled_region(int *ptr, u16 pkey)
+{
+	int ignored = 0xdada;
+	int futex_ret;
+	int some_int = __LINE__;
+
+	dprintf1("disabling write to PKEY[%02d], "
+		 "doing futex gunk in buffer\n", pkey);
+	*ptr = some_int;
+	pkey_write_deny(pkey);
+	futex_ret = syscall(SYS_futex, ptr, FUTEX_WAIT, some_int-1, NULL,
+			&ignored, ignored);
+	if (DEBUG_LEVEL > 0)
+		perror("futex");
+	dprintf1("futex() ret: %d\n", futex_ret);
+}
+
+/* Assumes that all pkeys other than 'pkey' are unallocated */
+static void test_pkey_syscalls_on_non_allocated_pkey(int *ptr, u16 pkey)
+{
+	int err;
+	int i;
+
+	/* Note: 0 is the default pkey, so don't mess with it */
+	for (i = 1; i < NR_PKEYS; i++) {
+		if (pkey == i)
+			continue;
+
+		dprintf1("trying get/set/free to non-allocated pkey: %2d\n", i);
+		err = sys_pkey_free(i);
+		pkey_assert(err);
+
+		err = sys_pkey_free(i);
+		pkey_assert(err);
+
+		err = sys_mprotect_pkey(ptr, PAGE_SIZE, PROT_READ, i);
+		pkey_assert(err);
+	}
+}
+
+/* Assumes that all pkeys other than 'pkey' are unallocated */
+static void test_pkey_syscalls_bad_args(int *ptr, u16 pkey)
+{
+	int err;
+	int bad_pkey = NR_PKEYS+99;
+
+	/* pass a known-invalid pkey in: */
+	err = sys_mprotect_pkey(ptr, PAGE_SIZE, PROT_READ, bad_pkey);
+	pkey_assert(err);
+}
+
+static void become_child(void)
+{
+	pid_t forkret;
+
+	forkret = fork();
+	pkey_assert(forkret >= 0);
+	dprintf3("[%d] fork() ret: %d\n", getpid(), forkret);
+
+	if (!forkret) {
+		/* in the child */
+		return;
+	}
+	exit(0);
+}
+
+/* Assumes that all pkeys other than 'pkey' are unallocated */
+static void test_pkey_alloc_exhaust(int *ptr, u16 pkey)
+{
+	int err;
+	int allocated_pkeys[NR_PKEYS] = {0};
+	int nr_allocated_pkeys = 0;
+	int i;
+
+	for (i = 0; i < NR_PKEYS*3; i++) {
+		int new_pkey;
+		dprintf1("%s() alloc loop: %d\n", __func__, i);
+		new_pkey = alloc_pkey();
+		dprintf4("%s()::%d, err: %d pkey_reg: 0x%016llx"
+				" shadow: 0x%016llx\n",
+				__func__, __LINE__, err, __read_pkey_reg(),
+				shadow_pkey_reg);
+		read_pkey_reg(); /* for shadow checking */
+		dprintf2("%s() errno: %d ENOSPC: %d\n", __func__, errno, ENOSPC);
+		if ((new_pkey == -1) && (errno == ENOSPC)) {
+			dprintf2("%s() failed to allocate pkey after %d tries\n",
+				__func__, nr_allocated_pkeys);
+		} else {
+			/*
+			 * Ensure the number of successes never
+			 * exceeds the number of keys supported
+			 * in the hardware.
+			 */
+			pkey_assert(nr_allocated_pkeys < NR_PKEYS);
+			allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
+		}
+
+		/*
+		 * Make sure that allocation state is properly
+		 * preserved across fork().
+		 */
+		if (i == NR_PKEYS*2)
+			become_child();
+	}
+
+	dprintf3("%s()::%d\n", __func__, __LINE__);
+
+	/*
+	 * On x86:
+	 * There are 16 pkeys supported in hardware.  Three are
+	 * allocated by the time we get here:
+	 *   1. The default key (0)
+	 *   2. One possibly consumed by an execute-only mapping.
+	 *   3. One allocated by the test code and passed in via
+	 *      'pkey' to this function.
+	 * Ensure that we can allocate at least another 13 (16-3).
+	 *
+	 * On powerpc:
+	 * There are either 5, 28, 29 or 32 pkeys supported in
+	 * hardware depending on the page size (4K or 64K) and
+	 * platform (powernv or powervm). Four are allocated by
+	 * the time we get here. These include pkey-0, pkey-1,
+	 * exec-only pkey and the one allocated by the test code.
+	 * Ensure that we can allocate the remaining.
+	 */
+	pkey_assert(i >= (NR_PKEYS - get_arch_reserved_keys() - 1));
+
+	for (i = 0; i < nr_allocated_pkeys; i++) {
+		err = sys_pkey_free(allocated_pkeys[i]);
+		pkey_assert(!err);
+		read_pkey_reg(); /* for shadow checking */
+	}
+}
+
+static void arch_force_pkey_reg_init(void)
+{
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	u64 *buf;
+
+	/*
+	 * All keys should be allocated and set to allow reads and
+	 * writes, so the register should be all 0.  If not, just
+	 * skip the test.
+	 */
+	if (read_pkey_reg())
+		return;
+
+	/*
+	 * Just allocate an absurd about of memory rather than
+	 * doing the XSAVE size enumeration dance.
+	 */
+	buf = mmap(NULL, 1*MB, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+
+	/* These __builtins require compiling with -mxsave */
+
+	/* XSAVE to build a valid buffer: */
+	__builtin_ia32_xsave(buf, XSTATE_PKEY);
+	/* Clear XSTATE_BV[PKRU]: */
+	buf[XSTATE_BV_OFFSET/sizeof(u64)] &= ~XSTATE_PKEY;
+	/* XRSTOR will likely get PKRU back to the init state: */
+	__builtin_ia32_xrstor(buf, XSTATE_PKEY);
+
+	munmap(buf, 1*MB);
+#endif
+}
+
+
+/*
+ * This is mostly useless on ppc for now.  But it will not
+ * hurt anything and should give some better coverage as
+ * a long-running test that continually checks the pkey
+ * register.
+ */
+static void test_pkey_init_state(int *ptr, u16 pkey)
+{
+	int err;
+	int allocated_pkeys[NR_PKEYS] = {0};
+	int nr_allocated_pkeys = 0;
+	int i;
+
+	for (i = 0; i < NR_PKEYS; i++) {
+		int new_pkey = alloc_pkey();
+
+		if (new_pkey < 0)
+			continue;
+		allocated_pkeys[nr_allocated_pkeys++] = new_pkey;
+	}
+
+	dprintf3("%s()::%d\n", __func__, __LINE__);
+
+	arch_force_pkey_reg_init();
+
+	/*
+	 * Loop for a bit, hoping to get exercise the kernel
+	 * context switch code.
+	 */
+	for (i = 0; i < 1000000; i++)
+		read_pkey_reg();
+
+	for (i = 0; i < nr_allocated_pkeys; i++) {
+		err = sys_pkey_free(allocated_pkeys[i]);
+		pkey_assert(!err);
+		read_pkey_reg(); /* for shadow checking */
+	}
+}
+
+/*
+ * pkey 0 is special.  It is allocated by default, so you do not
+ * have to call pkey_alloc() to use it first.  Make sure that it
+ * is usable.
+ */
+static void test_mprotect_with_pkey_0(int *ptr, u16 pkey)
+{
+	long size;
+	int prot;
+
+	assert(pkey_last_malloc_record);
+	size = pkey_last_malloc_record->size;
+	/*
+	 * This is a bit of a hack.  But mprotect() requires
+	 * huge-page-aligned sizes when operating on hugetlbfs.
+	 * So, make sure that we use something that's a multiple
+	 * of a huge page when we can.
+	 */
+	if (size >= HPAGE_SIZE)
+		size = HPAGE_SIZE;
+	prot = pkey_last_malloc_record->prot;
+
+	/* Use pkey 0 */
+	mprotect_pkey(ptr, size, prot, 0);
+
+	/* Make sure that we can set it back to the original pkey. */
+	mprotect_pkey(ptr, size, prot, pkey);
+}
+
+static void test_ptrace_of_child(int *ptr, u16 pkey)
+{
+	__always_unused int peek_result;
+	pid_t child_pid;
+	void *ignored = 0;
+	long ret;
+	int status;
+	/*
+	 * This is the "control" for our little expermient.  Make sure
+	 * we can always access it when ptracing.
+	 */
+	int *plain_ptr_unaligned = malloc(HPAGE_SIZE);
+	int *plain_ptr = ALIGN_PTR_UP(plain_ptr_unaligned, PAGE_SIZE);
+
+	/*
+	 * Fork a child which is an exact copy of this process, of course.
+	 * That means we can do all of our tests via ptrace() and then plain
+	 * memory access and ensure they work differently.
+	 */
+	child_pid = fork_lazy_child();
+	dprintf1("[%d] child pid: %d\n", getpid(), child_pid);
+
+	ret = ptrace(PTRACE_ATTACH, child_pid, ignored, ignored);
+	if (ret)
+		perror("attach");
+	dprintf1("[%d] attach ret: %ld %d\n", getpid(), ret, __LINE__);
+	pkey_assert(ret != -1);
+	ret = waitpid(child_pid, &status, WUNTRACED);
+	if ((ret != child_pid) || !(WIFSTOPPED(status))) {
+		fprintf(stderr, "weird waitpid result %ld stat %x\n",
+				ret, status);
+		pkey_assert(0);
+	}
+	dprintf2("waitpid ret: %ld\n", ret);
+	dprintf2("waitpid status: %d\n", status);
+
+	pkey_access_deny(pkey);
+	pkey_write_deny(pkey);
+
+	/* Write access, untested for now:
+	ret = ptrace(PTRACE_POKEDATA, child_pid, peek_at, data);
+	pkey_assert(ret != -1);
+	dprintf1("poke at %p: %ld\n", peek_at, ret);
+	*/
+
+	/*
+	 * Try to access the pkey-protected "ptr" via ptrace:
+	 */
+	ret = ptrace(PTRACE_PEEKDATA, child_pid, ptr, ignored);
+	/* expect it to work, without an error: */
+	pkey_assert(ret != -1);
+	/* Now access from the current task, and expect an exception: */
+	peek_result = read_ptr(ptr);
+	expected_pkey_fault(pkey);
+
+	/*
+	 * Try to access the NON-pkey-protected "plain_ptr" via ptrace:
+	 */
+	ret = ptrace(PTRACE_PEEKDATA, child_pid, plain_ptr, ignored);
+	/* expect it to work, without an error: */
+	pkey_assert(ret != -1);
+	/* Now access from the current task, and expect NO exception: */
+	peek_result = read_ptr(plain_ptr);
+	do_not_expect_pkey_fault("read plain pointer after ptrace");
+
+	ret = ptrace(PTRACE_DETACH, child_pid, ignored, 0);
+	pkey_assert(ret != -1);
+
+	ret = kill(child_pid, SIGKILL);
+	pkey_assert(ret != -1);
+
+	wait(&status);
+
+	free(plain_ptr_unaligned);
+}
+
+static void *get_pointer_to_instructions(void)
+{
+	void *p1;
+
+	p1 = ALIGN_PTR_UP(&lots_o_noops_around_write, PAGE_SIZE);
+	dprintf3("&lots_o_noops: %p\n", &lots_o_noops_around_write);
+	/* lots_o_noops_around_write should be page-aligned already */
+	assert(p1 == &lots_o_noops_around_write);
+
+	/* Point 'p1' at the *second* page of the function: */
+	p1 += PAGE_SIZE;
+
+	/*
+	 * Try to ensure we fault this in on next touch to ensure
+	 * we get an instruction fault as opposed to a data one
+	 */
+	madvise(p1, PAGE_SIZE, MADV_DONTNEED);
+
+	return p1;
+}
+
+static void test_executing_on_unreadable_memory(int *ptr, u16 pkey)
+{
+	void *p1;
+	int scratch;
+	int ptr_contents;
+	int ret;
+
+	p1 = get_pointer_to_instructions();
+	lots_o_noops_around_write(&scratch);
+	ptr_contents = read_ptr(p1);
+	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);
+
+	ret = mprotect_pkey(p1, PAGE_SIZE, PROT_EXEC, (u64)pkey);
+	pkey_assert(!ret);
+	pkey_access_deny(pkey);
+
+	dprintf2("pkey_reg: %016llx\n", read_pkey_reg());
+
+	/*
+	 * Make sure this is an *instruction* fault
+	 */
+	madvise(p1, PAGE_SIZE, MADV_DONTNEED);
+	lots_o_noops_around_write(&scratch);
+	do_not_expect_pkey_fault("executing on PROT_EXEC memory");
+	expect_fault_on_read_execonly_key(p1, pkey);
+
+	// Reset back to PROT_EXEC | PROT_READ for architectures that support
+	// non-PKEY execute-only permissions.
+	ret = mprotect_pkey(p1, PAGE_SIZE, PROT_EXEC | PROT_READ, (u64)pkey);
+	pkey_assert(!ret);
+}
+
+static void test_implicit_mprotect_exec_only_memory(int *ptr, u16 pkey)
+{
+	void *p1;
+	int scratch;
+	int ptr_contents;
+	int ret;
+
+	dprintf1("%s() start\n", __func__);
+
+	p1 = get_pointer_to_instructions();
+	lots_o_noops_around_write(&scratch);
+	ptr_contents = read_ptr(p1);
+	dprintf2("ptr (%p) contents@%d: %x\n", p1, __LINE__, ptr_contents);
+
+	/* Use a *normal* mprotect(), not mprotect_pkey(): */
+	ret = mprotect(p1, PAGE_SIZE, PROT_EXEC);
+	pkey_assert(!ret);
+
+	/*
+	 * Reset the shadow, assuming that the above mprotect()
+	 * correctly changed PKRU, but to an unknown value since
+	 * the actual allocated pkey is unknown.
+	 */
+	shadow_pkey_reg = __read_pkey_reg();
+
+	dprintf2("pkey_reg: %016llx\n", read_pkey_reg());
+
+	/* Make sure this is an *instruction* fault */
+	madvise(p1, PAGE_SIZE, MADV_DONTNEED);
+	lots_o_noops_around_write(&scratch);
+	do_not_expect_pkey_fault("executing on PROT_EXEC memory");
+	expect_fault_on_read_execonly_key(p1, UNKNOWN_PKEY);
+
+	/*
+	 * Put the memory back to non-PROT_EXEC.  Should clear the
+	 * exec-only pkey off the VMA and allow it to be readable
+	 * again.  Go to PROT_NONE first to check for a kernel bug
+	 * that did not clear the pkey when doing PROT_NONE.
+	 */
+	ret = mprotect(p1, PAGE_SIZE, PROT_NONE);
+	pkey_assert(!ret);
+
+	ret = mprotect(p1, PAGE_SIZE, PROT_READ|PROT_EXEC);
+	pkey_assert(!ret);
+	ptr_contents = read_ptr(p1);
+	do_not_expect_pkey_fault("plain read on recently PROT_EXEC area");
+}
+
+#if defined(__i386__) || defined(__x86_64__)
+static void test_ptrace_modifies_pkru(int *ptr, u16 pkey)
+{
+	u32 new_pkru;
+	pid_t child;
+	int status, ret;
+	int pkey_offset = pkey_reg_xstate_offset();
+	size_t xsave_size = cpu_max_xsave_size();
+	void *xsave;
+	u32 *pkey_register;
+	u64 *xstate_bv;
+	struct iovec iov;
+
+	new_pkru = ~read_pkey_reg();
+	/* Don't make PROT_EXEC mappings inaccessible */
+	new_pkru &= ~3;
+
+	child = fork();
+	pkey_assert(child >= 0);
+	dprintf3("[%d] fork() ret: %d\n", getpid(), child);
+	if (!child) {
+		ptrace(PTRACE_TRACEME, 0, 0, 0);
+		/* Stop and allow the tracer to modify PKRU directly */
+		raise(SIGSTOP);
+
+		/*
+		 * need __read_pkey_reg() version so we do not do shadow_pkey_reg
+		 * checking
+		 */
+		if (__read_pkey_reg() != new_pkru)
+			exit(1);
+
+		/* Stop and allow the tracer to clear XSTATE_BV for PKRU */
+		raise(SIGSTOP);
+
+		if (__read_pkey_reg() != 0)
+			exit(1);
+
+		/* Stop and allow the tracer to examine PKRU */
+		raise(SIGSTOP);
+
+		exit(0);
+	}
+
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
+
+	xsave = (void *)malloc(xsave_size);
+	pkey_assert(xsave > 0);
+
+	/* Modify the PKRU register directly */
+	iov.iov_base = xsave;
+	iov.iov_len = xsave_size;
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+
+	pkey_register = (u32 *)(xsave + pkey_offset);
+	pkey_assert(*pkey_register == read_pkey_reg());
+
+	*pkey_register = new_pkru;
+
+	ret = ptrace(PTRACE_SETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+
+	/* Test that the modification is visible in ptrace before any execution */
+	memset(xsave, 0xCC, xsave_size);
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(*pkey_register == new_pkru);
+
+	/* Execute the tracee */
+	ret = ptrace(PTRACE_CONT, child, 0, 0);
+	pkey_assert(ret == 0);
+
+	/* Test that the tracee saw the PKRU value change */
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
+
+	/* Test that the modification is visible in ptrace after execution */
+	memset(xsave, 0xCC, xsave_size);
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(*pkey_register == new_pkru);
+
+	/* Clear the PKRU bit from XSTATE_BV */
+	xstate_bv = (u64 *)(xsave + 512);
+	*xstate_bv &= ~(1 << 9);
+
+	ret = ptrace(PTRACE_SETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+
+	/* Test that the modification is visible in ptrace before any execution */
+	memset(xsave, 0xCC, xsave_size);
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(*pkey_register == 0);
+
+	ret = ptrace(PTRACE_CONT, child, 0, 0);
+	pkey_assert(ret == 0);
+
+	/* Test that the tracee saw the PKRU value go to 0 */
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
+
+	/* Test that the modification is visible in ptrace after execution */
+	memset(xsave, 0xCC, xsave_size);
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_X86_XSTATE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(*pkey_register == 0);
+
+	ret = ptrace(PTRACE_CONT, child, 0, 0);
+	pkey_assert(ret == 0);
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFEXITED(status));
+	pkey_assert(WEXITSTATUS(status) == 0);
+	free(xsave);
+}
+#endif
+
+#if defined(__aarch64__)
+static void test_ptrace_modifies_pkru(int *ptr, u16 pkey)
+{
+	pid_t child;
+	int status, ret;
+	struct iovec iov;
+	u64 trace_pkey;
+	/* Just a random pkey value.. */
+	u64 new_pkey = (POE_X << PKEY_BITS_PER_PKEY * 2) |
+			(POE_NONE << PKEY_BITS_PER_PKEY) |
+			POE_RWX;
+
+	child = fork();
+	pkey_assert(child >= 0);
+	dprintf3("[%d] fork() ret: %d\n", getpid(), child);
+	if (!child) {
+		ptrace(PTRACE_TRACEME, 0, 0, 0);
+
+		/* Stop and allow the tracer to modify PKRU directly */
+		raise(SIGSTOP);
+
+		/*
+		 * need __read_pkey_reg() version so we do not do shadow_pkey_reg
+		 * checking
+		 */
+		if (__read_pkey_reg() != new_pkey)
+			exit(1);
+
+		raise(SIGSTOP);
+
+		exit(0);
+	}
+
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
+
+	iov.iov_base = &trace_pkey;
+	iov.iov_len = 8;
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_ARM_POE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(trace_pkey == read_pkey_reg());
+
+	trace_pkey = new_pkey;
+
+	ret = ptrace(PTRACE_SETREGSET, child, (void *)NT_ARM_POE, &iov);
+	pkey_assert(ret == 0);
+
+	/* Test that the modification is visible in ptrace before any execution */
+	memset(&trace_pkey, 0, sizeof(trace_pkey));
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_ARM_POE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(trace_pkey == new_pkey);
+
+	/* Execute the tracee */
+	ret = ptrace(PTRACE_CONT, child, 0, 0);
+	pkey_assert(ret == 0);
+
+	/* Test that the tracee saw the PKRU value change */
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFSTOPPED(status) && WSTOPSIG(status) == SIGSTOP);
+
+	/* Test that the modification is visible in ptrace after execution */
+	memset(&trace_pkey, 0, sizeof(trace_pkey));
+	ret = ptrace(PTRACE_GETREGSET, child, (void *)NT_ARM_POE, &iov);
+	pkey_assert(ret == 0);
+	pkey_assert(trace_pkey == new_pkey);
+
+	ret = ptrace(PTRACE_CONT, child, 0, 0);
+	pkey_assert(ret == 0);
+	pkey_assert(child == waitpid(child, &status, 0));
+	dprintf3("[%d] waitpid(%d) status: %x\n", getpid(), child, status);
+	pkey_assert(WIFEXITED(status));
+	pkey_assert(WEXITSTATUS(status) == 0);
+}
+#endif
+
+static void test_mprotect_pkey_on_unsupported_cpu(int *ptr, u16 pkey)
+{
+	int size = PAGE_SIZE;
+	int sret;
+
+	if (cpu_has_pkeys()) {
+		dprintf1("SKIP: %s: no CPU support\n", __func__);
+		return;
+	}
+
+	sret = syscall(__NR_pkey_mprotect, ptr, size, PROT_READ, pkey);
+	pkey_assert(sret < 0);
+}
+
+static void (*pkey_tests[])(int *ptr, u16 pkey) = {
+	test_read_of_write_disabled_region,
+	test_read_of_access_disabled_region,
+	test_read_of_access_disabled_region_with_page_already_mapped,
+	test_write_of_write_disabled_region,
+	test_write_of_write_disabled_region_with_page_already_mapped,
+	test_write_of_access_disabled_region,
+	test_write_of_access_disabled_region_with_page_already_mapped,
+	test_kernel_write_of_access_disabled_region,
+	test_kernel_write_of_write_disabled_region,
+	test_kernel_gup_of_access_disabled_region,
+	test_kernel_gup_write_to_write_disabled_region,
+	test_executing_on_unreadable_memory,
+	test_implicit_mprotect_exec_only_memory,
+	test_mprotect_with_pkey_0,
+	test_ptrace_of_child,
+	test_pkey_init_state,
+	test_pkey_syscalls_on_non_allocated_pkey,
+	test_pkey_syscalls_bad_args,
+	test_pkey_alloc_exhaust,
+	test_pkey_alloc_free_attach_pkey0,
+#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__)
+	test_ptrace_modifies_pkru,
+#endif
+};
+
+static void run_tests_once(void)
+{
+	int *ptr;
+	int prot = PROT_READ|PROT_WRITE;
+
+	for (test_nr = 0; test_nr < ARRAY_SIZE(pkey_tests); test_nr++) {
+		int pkey;
+		int orig_pkey_faults = pkey_faults;
+
+		dprintf1("======================\n");
+		dprintf1("test %d preparing...\n", test_nr);
+
+		tracing_on();
+		pkey = alloc_random_pkey();
+		dprintf1("test %d starting with pkey: %d\n", test_nr, pkey);
+		ptr = malloc_pkey(PAGE_SIZE, prot, pkey);
+		dprintf1("test %d starting...\n", test_nr);
+		pkey_tests[test_nr](ptr, pkey);
+		dprintf1("freeing test memory: %p\n", ptr);
+		free_pkey_malloc(ptr);
+		sys_pkey_free(pkey);
+
+		dprintf1("pkey_faults: %d\n", pkey_faults);
+		dprintf1("orig_pkey_faults: %d\n", orig_pkey_faults);
+
+		tracing_off();
+		close_test_fds();
+
+		printf("test %2d PASSED (iteration %d)\n", test_nr, iteration_nr);
+		dprintf1("======================\n\n");
+	}
+	iteration_nr++;
+}
+
+static void pkey_setup_shadow(void)
+{
+	shadow_pkey_reg = __read_pkey_reg();
+}
+
+int main(void)
+{
+	int nr_iterations = 22;
+	int pkeys_supported = is_pkeys_supported();
+
+	srand((unsigned int)time(NULL));
+
+	setup_handlers();
+
+	printf("has pkeys: %d\n", pkeys_supported);
+
+	if (!pkeys_supported) {
+		int size = PAGE_SIZE;
+		int *ptr;
+
+		printf("running PKEY tests for unsupported CPU/OS\n");
+
+		ptr  = mmap(NULL, size, PROT_NONE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+		assert(ptr != (void *)-1);
+		test_mprotect_pkey_on_unsupported_cpu(ptr, 1);
+		exit(0);
+	}
+
+	pkey_setup_shadow();
+	printf("startup pkey_reg: %016llx\n", read_pkey_reg());
+	setup_hugetlbfs();
+
+	while (nr_iterations-- > 0)
+		run_tests_once();
+
+	printf("done (all tests OK)\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/rmap.c b/tools/testing/selftests/mm/rmap.c
new file mode 100644
index 000000000000..53f2058b0ef2
--- /dev/null
+++ b/tools/testing/selftests/mm/rmap.c
@@ -0,0 +1,433 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * RMAP functional tests
+ *
+ * Author(s): Wei Yang <richard.weiyang@gmail.com>
+ */
+
+#include "kselftest_harness.h"
+#include <strings.h>
+#include <pthread.h>
+#include <numa.h>
+#include <numaif.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <time.h>
+#include <sys/sem.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "vm_util.h"
+
+#define TOTAL_LEVEL 5
+#define MAX_CHILDREN 3
+
+#define FAIL_ON_CHECK	(1 << 0)
+#define FAIL_ON_WORK	(1 << 1)
+
+struct sembuf sem_wait = {0, -1, 0};
+struct sembuf sem_signal = {0, 1, 0};
+
+enum backend_type {
+	ANON,
+	SHM,
+	NORM_FILE,
+};
+
+#define PREFIX "kst_rmap"
+#define MAX_FILENAME_LEN 256
+const char *suffixes[] = {
+	"",
+	"_shm",
+	"_file",
+};
+
+struct global_data;
+typedef int (*work_fn)(struct global_data *data);
+typedef int (*check_fn)(struct global_data *data);
+typedef void (*prepare_fn)(struct global_data *data);
+
+struct global_data {
+	int worker_level;
+
+	int semid;
+	int pipefd[2];
+
+	unsigned int mapsize;
+	unsigned int rand_seed;
+	char *region;
+
+	prepare_fn do_prepare;
+	work_fn do_work;
+	check_fn do_check;
+
+	enum backend_type backend;
+	char filename[MAX_FILENAME_LEN];
+
+	unsigned long *expected_pfn;
+};
+
+/*
+ * Create a process tree with TOTAL_LEVEL height and at most MAX_CHILDREN
+ * children for each.
+ *
+ * It will randomly select one process as 'worker' process which will
+ * 'do_work' until all processes are created. And all other processes will
+ * wait until 'worker' finish its work.
+ */
+void propagate_children(struct __test_metadata *_metadata, struct global_data *data)
+{
+	pid_t root_pid, pid;
+	unsigned int num_child;
+	int status;
+	int ret = 0;
+	int curr_child, worker_child;
+	int curr_level = 1;
+	bool is_worker = true;
+
+	root_pid = getpid();
+repeat:
+	num_child = rand_r(&data->rand_seed) % MAX_CHILDREN + 1;
+	worker_child = is_worker ? rand_r(&data->rand_seed) % num_child : -1;
+
+	for (curr_child = 0; curr_child < num_child; curr_child++) {
+		pid = fork();
+
+		if (pid < 0) {
+			perror("Error: fork\n");
+		} else if (pid == 0) {
+			curr_level++;
+
+			if (curr_child != worker_child)
+				is_worker = false;
+
+			if (curr_level == TOTAL_LEVEL)
+				break;
+
+			data->rand_seed += curr_child;
+			goto repeat;
+		}
+	}
+
+	if (data->do_prepare)
+		data->do_prepare(data);
+
+	close(data->pipefd[1]);
+
+	if (is_worker && curr_level == data->worker_level) {
+		/* This is the worker process, first wait last process created */
+		char buf;
+
+		while (read(data->pipefd[0], &buf, 1) > 0)
+			;
+
+		if (data->do_work)
+			ret = data->do_work(data);
+
+		/* Kick others */
+		semctl(data->semid, 0, IPC_RMID);
+	} else {
+		/* Wait worker finish */
+		semop(data->semid, &sem_wait, 1);
+		if (data->do_check)
+			ret = data->do_check(data);
+	}
+
+	/* Wait all child to quit */
+	while (wait(&status) > 0) {
+		if (WIFEXITED(status))
+			ret |= WEXITSTATUS(status);
+	}
+
+	if (getpid() == root_pid) {
+		if (ret & FAIL_ON_WORK)
+			SKIP(return, "Failed in worker");
+
+		ASSERT_EQ(ret, 0);
+	} else {
+		exit(ret);
+	}
+}
+
+FIXTURE(migrate)
+{
+	struct global_data data;
+};
+
+FIXTURE_SETUP(migrate)
+{
+	struct global_data *data = &self->data;
+
+	if (numa_available() < 0)
+		SKIP(return, "NUMA not available");
+	if (numa_bitmask_weight(numa_all_nodes_ptr) <= 1)
+		SKIP(return, "Not enough NUMA nodes available");
+
+	data->mapsize = getpagesize();
+
+	data->expected_pfn = mmap(0, sizeof(unsigned long),
+				PROT_READ | PROT_WRITE,
+				MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(data->expected_pfn, MAP_FAILED);
+
+	/* Prepare semaphore */
+	data->semid = semget(IPC_PRIVATE, 1, 0666 | IPC_CREAT);
+	ASSERT_NE(data->semid, -1);
+	ASSERT_NE(semctl(data->semid, 0, SETVAL, 0), -1);
+
+	/* Prepare pipe */
+	ASSERT_NE(pipe(data->pipefd), -1);
+
+	data->rand_seed = time(NULL);
+	srand(data->rand_seed);
+
+	data->worker_level = rand() % TOTAL_LEVEL + 1;
+
+	data->do_prepare = NULL;
+	data->do_work = NULL;
+	data->do_check = NULL;
+
+	data->backend = ANON;
+};
+
+FIXTURE_TEARDOWN(migrate)
+{
+	struct global_data *data = &self->data;
+
+	if (data->region != MAP_FAILED)
+		munmap(data->region, data->mapsize);
+	data->region = MAP_FAILED;
+	if (data->expected_pfn != MAP_FAILED)
+		munmap(data->expected_pfn, sizeof(unsigned long));
+	data->expected_pfn = MAP_FAILED;
+	semctl(data->semid, 0, IPC_RMID);
+	data->semid = -1;
+
+	close(data->pipefd[0]);
+
+	switch (data->backend) {
+	case ANON:
+		break;
+	case SHM:
+		shm_unlink(data->filename);
+		break;
+	case NORM_FILE:
+		unlink(data->filename);
+		break;
+	}
+}
+
+void access_region(struct global_data *data)
+{
+	/*
+	 * Force read "region" to make sure page fault in.
+	 */
+	FORCE_READ(*data->region);
+}
+
+int try_to_move_page(char *region)
+{
+	int ret;
+	int node;
+	int status = 0;
+	int failures = 0;
+
+	ret = move_pages(0, 1, (void **)&region, NULL, &status, MPOL_MF_MOVE_ALL);
+	if (ret != 0) {
+		perror("Failed to get original numa");
+		return FAIL_ON_WORK;
+	}
+
+	/* Pick up a different target node */
+	for (node = 0; node <= numa_max_node(); node++) {
+		if (numa_bitmask_isbitset(numa_all_nodes_ptr, node) && node != status)
+			break;
+	}
+
+	if (node > numa_max_node()) {
+		ksft_print_msg("Couldn't find available numa node for testing\n");
+		return FAIL_ON_WORK;
+	}
+
+	while (1) {
+		ret = move_pages(0, 1, (void **)&region, &node, &status, MPOL_MF_MOVE_ALL);
+
+		/* migrate successfully */
+		if (!ret)
+			break;
+
+		/* error happened */
+		if (ret < 0) {
+			ksft_perror("Failed to move pages");
+			return FAIL_ON_WORK;
+		}
+
+		/* migration is best effort; try again */
+		if (++failures >= 100)
+			return FAIL_ON_WORK;
+	}
+
+	return 0;
+}
+
+int move_region(struct global_data *data)
+{
+	int ret;
+	int pagemap_fd;
+
+	ret = try_to_move_page(data->region);
+	if (ret != 0)
+		return ret;
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd == -1)
+		return FAIL_ON_WORK;
+	*data->expected_pfn = pagemap_get_pfn(pagemap_fd, data->region);
+
+	return 0;
+}
+
+int has_same_pfn(struct global_data *data)
+{
+	unsigned long pfn;
+	int pagemap_fd;
+
+	if (data->region == MAP_FAILED)
+		return 0;
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd == -1)
+		return FAIL_ON_CHECK;
+
+	pfn = pagemap_get_pfn(pagemap_fd, data->region);
+	if (pfn != *data->expected_pfn)
+		return FAIL_ON_CHECK;
+
+	return 0;
+}
+
+TEST_F(migrate, anon)
+{
+	struct global_data *data = &self->data;
+
+	/* Map an area and fault in */
+	data->region = mmap(0, data->mapsize, PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(data->region, MAP_FAILED);
+	memset(data->region, 0xcf, data->mapsize);
+
+	data->do_prepare = access_region;
+	data->do_work = move_region;
+	data->do_check = has_same_pfn;
+
+	propagate_children(_metadata, data);
+}
+
+TEST_F(migrate, shm)
+{
+	int shm_fd;
+	struct global_data *data = &self->data;
+
+	snprintf(data->filename, MAX_FILENAME_LEN, "%s%s", PREFIX, suffixes[SHM]);
+	shm_fd = shm_open(data->filename, O_CREAT | O_RDWR, 0666);
+	ASSERT_NE(shm_fd, -1);
+	ftruncate(shm_fd, data->mapsize);
+	data->backend = SHM;
+
+	/* Map a shared area and fault in */
+	data->region = mmap(0, data->mapsize, PROT_READ | PROT_WRITE,
+				MAP_SHARED, shm_fd, 0);
+	ASSERT_NE(data->region, MAP_FAILED);
+	memset(data->region, 0xcf, data->mapsize);
+	close(shm_fd);
+
+	data->do_prepare = access_region;
+	data->do_work = move_region;
+	data->do_check = has_same_pfn;
+
+	propagate_children(_metadata, data);
+}
+
+TEST_F(migrate, file)
+{
+	int fd;
+	struct global_data *data = &self->data;
+
+	snprintf(data->filename, MAX_FILENAME_LEN, "%s%s", PREFIX, suffixes[NORM_FILE]);
+	fd = open(data->filename, O_CREAT | O_RDWR | O_EXCL, 0666);
+	ASSERT_NE(fd, -1);
+	ftruncate(fd, data->mapsize);
+	data->backend = NORM_FILE;
+
+	/* Map a shared area and fault in */
+	data->region = mmap(0, data->mapsize, PROT_READ | PROT_WRITE,
+				MAP_SHARED, fd, 0);
+	ASSERT_NE(data->region, MAP_FAILED);
+	memset(data->region, 0xcf, data->mapsize);
+	close(fd);
+
+	data->do_prepare = access_region;
+	data->do_work = move_region;
+	data->do_check = has_same_pfn;
+
+	propagate_children(_metadata, data);
+}
+
+void prepare_local_region(struct global_data *data)
+{
+	/* Allocate range and set the same data */
+	data->region = mmap(NULL, data->mapsize, PROT_READ|PROT_WRITE,
+			   MAP_PRIVATE|MAP_ANON, -1, 0);
+	if (data->region == MAP_FAILED)
+		return;
+
+	memset(data->region, 0xcf, data->mapsize);
+}
+
+int merge_and_migrate(struct global_data *data)
+{
+	int pagemap_fd;
+	int ret = 0;
+
+	if (data->region == MAP_FAILED)
+		return FAIL_ON_WORK;
+
+	if (ksm_start() < 0)
+		return FAIL_ON_WORK;
+
+	ret = try_to_move_page(data->region);
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd == -1)
+		return FAIL_ON_WORK;
+	*data->expected_pfn = pagemap_get_pfn(pagemap_fd, data->region);
+
+	return ret;
+}
+
+TEST_F(migrate, ksm)
+{
+	int ret;
+	struct global_data *data = &self->data;
+
+	if (ksm_stop() < 0)
+		SKIP(return, "accessing \"/sys/kernel/mm/ksm/run\") failed");
+	if (ksm_get_full_scans() < 0)
+		SKIP(return, "accessing \"/sys/kernel/mm/ksm/full_scan\") failed");
+
+	ret = prctl(PR_SET_MEMORY_MERGE, 1, 0, 0, 0);
+	if (ret < 0 && errno == EINVAL)
+		SKIP(return, "PR_SET_MEMORY_MERGE not supported");
+	else if (ret)
+		ksft_exit_fail_perror("PR_SET_MEMORY_MERGE=1 failed");
+
+	data->do_prepare = prepare_local_region;
+	data->do_work = merge_and_migrate;
+	data->do_check = has_same_pfn;
+
+	propagate_children(_metadata, data);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
new file mode 100755
index 000000000000..d9173f2312b7
--- /dev/null
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -0,0 +1,553 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Please run as root
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+count_total=0
+count_pass=0
+count_fail=0
+count_skip=0
+exitcode=0
+
+usage() {
+	cat <<EOF
+usage: ${BASH_SOURCE[0]:-$0} [ options ]
+
+  -a: run all tests, including extra ones (other than destructive ones)
+  -t: specify specific categories to tests to run
+  -h: display this message
+  -n: disable TAP output
+  -d: run destructive tests
+
+The default behavior is to run required tests only.  If -a is specified,
+will run all tests.
+
+Alternatively, specific groups tests can be run by passing a string
+to the -t argument containing one or more of the following categories
+separated by spaces:
+- mmap
+	tests for mmap(2)
+- gup_test
+	tests for gup
+- userfaultfd
+	tests for  userfaultfd(2)
+- compaction
+	a test for the patch "Allow compaction of unevictable pages"
+- mlock
+	tests for mlock(2)
+- mremap
+	tests for mremap(2)
+- hugevm
+	tests for very large virtual address space
+- vmalloc
+	vmalloc smoke tests
+- hmm
+	hmm smoke tests
+- madv_guard
+	test madvise(2) MADV_GUARD_INSTALL and MADV_GUARD_REMOVE options
+- madv_populate
+	test memadvise(2) MADV_POPULATE_{READ,WRITE} options
+- memfd_secret
+	test memfd_secret(2)
+- process_mrelease
+	test process_mrelease(2)
+- ksm
+	ksm tests that do not require >=2 NUMA nodes
+- ksm_numa
+	ksm tests that require >=2 NUMA nodes
+- pkey
+	memory protection key tests
+- soft_dirty
+	test soft dirty page bit semantics
+- pagemap
+	test pagemap_scan IOCTL
+- pfnmap
+	tests for VM_PFNMAP handling
+- process_madv
+	test for process_madv
+- cow
+	test copy-on-write semantics
+- thp
+	test transparent huge pages
+- hugetlb
+	test hugetlbfs huge pages
+- migration
+	invoke move_pages(2) to exercise the migration entry code
+	paths in the kernel
+- mkdirty
+	test handling of code that might set PTE/PMD dirty in
+	read-only VMAs
+- mdwe
+	test prctl(PR_SET_MDWE, ...)
+- page_frag
+	test handling of page fragment allocation and freeing
+- vma_merge
+	test VMA merge cases behave as expected
+- rmap
+	test rmap behaves as expected
+
+example: ./run_vmtests.sh -t "hmm mmap ksm"
+EOF
+	exit 0
+}
+
+RUN_ALL=false
+RUN_DESTRUCTIVE=false
+TAP_PREFIX="# "
+
+while getopts "aht:n" OPT; do
+	case ${OPT} in
+		"a") RUN_ALL=true ;;
+		"h") usage ;;
+		"t") VM_SELFTEST_ITEMS=${OPTARG} ;;
+		"n") TAP_PREFIX= ;;
+		"d") RUN_DESTRUCTIVE=true ;;
+	esac
+done
+shift $((OPTIND -1))
+
+# default behavior: run all tests
+VM_SELFTEST_ITEMS=${VM_SELFTEST_ITEMS:-default}
+
+test_selected() {
+	if [ "$VM_SELFTEST_ITEMS" == "default" ]; then
+		# If no VM_SELFTEST_ITEMS are specified, run all tests
+		return 0
+	fi
+	# If test selected argument is one of the test items
+	if [[ " ${VM_SELFTEST_ITEMS[*]} " =~ " ${1} " ]]; then
+	        return 0
+	else
+	        return 1
+	fi
+}
+
+run_gup_matrix() {
+    # -t: thp=on, -T: thp=off, -H: hugetlb=on
+    local hugetlb_mb=$(( needmem_KB / 1024 ))
+
+    for huge in -t -T "-H -m $hugetlb_mb"; do
+        # -u: gup-fast, -U: gup-basic, -a: pin-fast, -b: pin-basic, -L: pin-longterm
+        for test_cmd in -u -U -a -b -L; do
+            # -w: write=1, -W: write=0
+            for write in -w -W; do
+                # -S: shared
+                for share in -S " "; do
+                    # -n: How many pages to fetch together?  512 is special
+                    # because it's default thp size (or 2M on x86), 123 to
+                    # just test partial gup when hit a huge in whatever form
+                    for num in "-n 1" "-n 512" "-n 123" "-n -1"; do
+                        CATEGORY="gup_test" run_test ./gup_test \
+                                $huge $test_cmd $write $share $num
+                    done
+                done
+            done
+        done
+    done
+}
+
+# get huge pagesize and freepages from /proc/meminfo
+while read -r name size unit; do
+	if [ "$name" = "HugePages_Free:" ]; then
+		freepgs="$size"
+	fi
+	if [ "$name" = "Hugepagesize:" ]; then
+		hpgsize_KB="$size"
+	fi
+done < /proc/meminfo
+
+# Simple hugetlbfs tests have a hardcoded minimum requirement of
+# huge pages totaling 256MB (262144KB) in size.  The userfaultfd
+# hugetlb test requires a minimum of 2 * nr_cpus huge pages.  Take
+# both of these requirements into account and attempt to increase
+# number of huge pages available.
+nr_cpus=$(nproc)
+uffd_min_KB=$((hpgsize_KB * nr_cpus * 2))
+hugetlb_min_KB=$((256 * 1024))
+if [[ $uffd_min_KB -gt $hugetlb_min_KB ]]; then
+	needmem_KB=$uffd_min_KB
+else
+	needmem_KB=$hugetlb_min_KB
+fi
+
+# set proper nr_hugepages
+if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then
+	orig_nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+	needpgs=$((needmem_KB / hpgsize_KB))
+	tries=2
+	while [ "$tries" -gt 0 ] && [ "$freepgs" -lt "$needpgs" ]; do
+		lackpgs=$((needpgs - freepgs))
+		echo 3 > /proc/sys/vm/drop_caches
+		if ! echo $((lackpgs + orig_nr_hugepgs)) > /proc/sys/vm/nr_hugepages; then
+			echo "Please run this test as root"
+			exit $ksft_skip
+		fi
+		while read -r name size unit; do
+			if [ "$name" = "HugePages_Free:" ]; then
+				freepgs=$size
+			fi
+		done < /proc/meminfo
+		tries=$((tries - 1))
+	done
+	nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+	if [ "$freepgs" -lt "$needpgs" ]; then
+		printf "Not enough huge pages available (%d < %d)\n" \
+		       "$freepgs" "$needpgs"
+	fi
+	HAVE_HUGEPAGES=1
+else
+	echo "no hugetlbfs support in kernel?"
+	HAVE_HUGEPAGES=0
+fi
+
+# filter 64bit architectures
+ARCH64STR="arm64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sparc64 x86_64"
+if [ -z "$ARCH" ]; then
+	ARCH=$(uname -m 2>/dev/null | sed -e 's/aarch64.*/arm64/')
+fi
+VADDR64=0
+echo "$ARCH64STR" | grep "$ARCH" &>/dev/null && VADDR64=1
+
+tap_prefix() {
+	sed -e "s/^/${TAP_PREFIX}/"
+}
+
+tap_output() {
+	if [[ ! -z "$TAP_PREFIX" ]]; then
+		read str
+		echo $str
+	fi
+}
+
+pretty_name() {
+	echo "$*" | sed -e 's/^\(bash \)\?\.\///'
+}
+
+# Usage: run_test [test binary] [arbitrary test arguments...]
+run_test() {
+	if test_selected ${CATEGORY}; then
+		local skip=0
+
+		# On memory constrainted systems some tests can fail to allocate hugepages.
+		# perform some cleanup before the test for a higher success rate.
+		if [ ${CATEGORY} == "thp" -o ${CATEGORY} == "hugetlb" ]; then
+			if [ "${HAVE_HUGEPAGES}" = "1" ]; then
+				echo 3 > /proc/sys/vm/drop_caches
+				sleep 2
+				echo 1 > /proc/sys/vm/compact_memory
+				sleep 2
+			else
+				echo "hugepages not supported" | tap_prefix
+				skip=1
+			fi
+		fi
+
+		local test=$(pretty_name "$*")
+		local title="running $*"
+		local sep=$(echo -n "$title" | tr "[:graph:][:space:]" -)
+		printf "%s\n%s\n%s\n" "$sep" "$title" "$sep" | tap_prefix
+
+		if [ "${skip}" != "1" ]; then
+			("$@" 2>&1) | tap_prefix
+			local ret=${PIPESTATUS[0]}
+		else
+			local ret=$ksft_skip
+		fi
+		count_total=$(( count_total + 1 ))
+		if [ $ret -eq 0 ]; then
+			count_pass=$(( count_pass + 1 ))
+			echo "[PASS]" | tap_prefix
+			echo "ok ${count_total} ${test}" | tap_output
+		elif [ $ret -eq $ksft_skip ]; then
+			count_skip=$(( count_skip + 1 ))
+			echo "[SKIP]" | tap_prefix
+			echo "ok ${count_total} ${test} # SKIP" | tap_output
+			exitcode=$ksft_skip
+		else
+			count_fail=$(( count_fail + 1 ))
+			echo "[FAIL]" | tap_prefix
+			echo "not ok ${count_total} ${test} # exit=$ret" | tap_output
+			exitcode=1
+		fi
+	fi # test_selected
+}
+
+echo "TAP version 13" | tap_output
+
+CATEGORY="hugetlb" run_test ./hugepage-mmap
+
+shmmax=$(cat /proc/sys/kernel/shmmax)
+shmall=$(cat /proc/sys/kernel/shmall)
+echo 268435456 > /proc/sys/kernel/shmmax
+echo 4194304 > /proc/sys/kernel/shmall
+CATEGORY="hugetlb" run_test ./hugepage-shm
+echo "$shmmax" > /proc/sys/kernel/shmmax
+echo "$shmall" > /proc/sys/kernel/shmall
+
+CATEGORY="hugetlb" run_test ./map_hugetlb
+CATEGORY="hugetlb" run_test ./hugepage-mremap
+CATEGORY="hugetlb" run_test ./hugepage-vmemmap
+CATEGORY="hugetlb" run_test ./hugetlb-madvise
+CATEGORY="hugetlb" run_test ./hugetlb_dio
+
+if [ "${HAVE_HUGEPAGES}" = "1" ]; then
+	nr_hugepages_tmp=$(cat /proc/sys/vm/nr_hugepages)
+	# For this test, we need one and just one huge page
+	echo 1 > /proc/sys/vm/nr_hugepages
+	CATEGORY="hugetlb" run_test ./hugetlb_fault_after_madv
+	CATEGORY="hugetlb" run_test ./hugetlb_madv_vs_map
+	# Restore the previous number of huge pages, since further tests rely on it
+	echo "$nr_hugepages_tmp" > /proc/sys/vm/nr_hugepages
+fi
+
+if test_selected "hugetlb"; then
+	echo "NOTE: These hugetlb tests provide minimal coverage.  Use"	  | tap_prefix
+	echo "      https://github.com/libhugetlbfs/libhugetlbfs.git for" | tap_prefix
+	echo "      hugetlb regression testing."			  | tap_prefix
+fi
+
+CATEGORY="mmap" run_test ./map_fixed_noreplace
+
+if $RUN_ALL; then
+    run_gup_matrix
+else
+    # get_user_pages_fast() benchmark
+    CATEGORY="gup_test" run_test ./gup_test -u -n 1
+    CATEGORY="gup_test" run_test ./gup_test -u -n -1
+    # pin_user_pages_fast() benchmark
+    CATEGORY="gup_test" run_test ./gup_test -a -n 1
+    CATEGORY="gup_test" run_test ./gup_test -a -n -1
+fi
+# Dump pages 0, 19, and 4096, using pin_user_pages:
+CATEGORY="gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000
+CATEGORY="gup_test" run_test ./gup_longterm
+
+CATEGORY="userfaultfd" run_test ./uffd-unit-tests
+uffd_stress_bin=./uffd-stress
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} anon 20 16
+# Hugetlb tests require source and destination huge pages. Pass in almost half
+# the size of the free pages we have, which is used for *each*. An adjustment
+# of (nr_parallel - 1) is done (see nr_parallel in uffd-stress.c) to have some
+# extra hugepages - this is done to prevent the test from failing by racily
+# reserving more hugepages than strictly required.
+# uffd-stress expects a region expressed in MiB, so we adjust
+# half_ufd_size_MB accordingly.
+adjustment=$(( (31 < (nr_cpus - 1)) ? 31 : (nr_cpus - 1) ))
+half_ufd_size_MB=$((((freepgs - adjustment) * hpgsize_KB) / 1024 / 2))
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb "$half_ufd_size_MB" 32
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb-private "$half_ufd_size_MB" 32
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem 20 16
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem-private 20 16
+# uffd-wp-mremap requires at least one page of each size.
+have_all_size_hugepgs=true
+declare -A nr_size_hugepgs
+for f in /sys/kernel/mm/hugepages/**/nr_hugepages; do
+	old=$(cat $f)
+	nr_size_hugepgs["$f"]="$old"
+	if [ "$old" == 0 ]; then
+		echo 1 > "$f"
+	fi
+	if [ $(cat "$f") == 0 ]; then
+		have_all_size_hugepgs=false
+		break
+	fi
+done
+if $have_all_size_hugepgs; then
+	CATEGORY="userfaultfd" run_test ./uffd-wp-mremap
+else
+	echo "# SKIP ./uffd-wp-mremap"
+fi
+
+#cleanup
+for f in "${!nr_size_hugepgs[@]}"; do
+	echo "${nr_size_hugepgs["$f"]}" > "$f"
+done
+echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
+
+CATEGORY="compaction" run_test ./compaction_test
+
+if command -v sudo &> /dev/null && sudo -u nobody ls ./on-fault-limit >/dev/null;
+then
+	CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit
+else
+	echo "# SKIP ./on-fault-limit"
+fi
+
+CATEGORY="mmap" run_test ./map_populate
+
+CATEGORY="mlock" run_test ./mlock-random-test
+
+CATEGORY="mlock" run_test ./mlock2-tests
+
+CATEGORY="process_mrelease" run_test ./mrelease_test
+
+CATEGORY="mremap" run_test ./mremap_test
+
+CATEGORY="hugetlb" run_test ./thuge-gen
+CATEGORY="hugetlb" run_test ./charge_reserved_hugetlb.sh -cgroup-v2
+CATEGORY="hugetlb" run_test ./hugetlb_reparenting_test.sh -cgroup-v2
+if $RUN_DESTRUCTIVE; then
+nr_hugepages_tmp=$(cat /proc/sys/vm/nr_hugepages)
+enable_soft_offline=$(cat /proc/sys/vm/enable_soft_offline)
+echo 8 > /proc/sys/vm/nr_hugepages
+CATEGORY="hugetlb" run_test ./hugetlb-soft-offline
+echo "$nr_hugepages_tmp" > /proc/sys/vm/nr_hugepages
+echo "$enable_soft_offline" > /proc/sys/vm/enable_soft_offline
+CATEGORY="hugetlb" run_test ./hugetlb-read-hwpoison
+fi
+
+if [ $VADDR64 -ne 0 ]; then
+
+	# set overcommit_policy as OVERCOMMIT_ALWAYS so that kernel
+	# allows high virtual address allocation requests independent
+	# of platform's physical memory.
+
+	if [ -x ./virtual_address_range ]; then
+		prev_policy=$(cat /proc/sys/vm/overcommit_memory)
+		echo 1 > /proc/sys/vm/overcommit_memory
+		CATEGORY="hugevm" run_test ./virtual_address_range
+		echo $prev_policy > /proc/sys/vm/overcommit_memory
+	fi
+
+	# va high address boundary switch test
+	ARCH_ARM64="arm64"
+	prev_nr_hugepages=$(cat /proc/sys/vm/nr_hugepages)
+	if [ "$ARCH" == "$ARCH_ARM64" ]; then
+		echo 6 > /proc/sys/vm/nr_hugepages
+	fi
+	CATEGORY="hugevm" run_test bash ./va_high_addr_switch.sh
+	if [ "$ARCH" == "$ARCH_ARM64" ]; then
+		echo $prev_nr_hugepages > /proc/sys/vm/nr_hugepages
+	fi
+fi # VADDR64
+
+# vmalloc stability smoke test
+CATEGORY="vmalloc" run_test bash ./test_vmalloc.sh smoke
+
+CATEGORY="mremap" run_test ./mremap_dontunmap
+
+CATEGORY="hmm" run_test bash ./test_hmm.sh smoke
+
+# MADV_GUARD_INSTALL and MADV_GUARD_REMOVE tests
+CATEGORY="madv_guard" run_test ./guard-regions
+
+# MADV_POPULATE_READ and MADV_POPULATE_WRITE tests
+CATEGORY="madv_populate" run_test ./madv_populate
+
+# PROCESS_MADV test
+CATEGORY="process_madv" run_test ./process_madv
+
+CATEGORY="vma_merge" run_test ./merge
+
+if [ -x ./memfd_secret ]
+then
+if [ -f /proc/sys/kernel/yama/ptrace_scope ]; then
+	(echo 0 > /proc/sys/kernel/yama/ptrace_scope 2>&1) | tap_prefix
+fi
+CATEGORY="memfd_secret" run_test ./memfd_secret
+fi
+
+# KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100
+if [ "${HAVE_HUGEPAGES}" = "1" ]; then
+	CATEGORY="ksm" run_test ./ksm_tests -H -s 100
+fi
+# KSM KSM_MERGE_TIME test with size of 100
+CATEGORY="ksm" run_test ./ksm_tests -P -s 100
+# KSM MADV_MERGEABLE test with 10 identical pages
+CATEGORY="ksm" run_test ./ksm_tests -M -p 10
+# KSM unmerge test
+CATEGORY="ksm" run_test ./ksm_tests -U
+# KSM test with 10 zero pages and use_zero_pages = 0
+CATEGORY="ksm" run_test ./ksm_tests -Z -p 10 -z 0
+# KSM test with 10 zero pages and use_zero_pages = 1
+CATEGORY="ksm" run_test ./ksm_tests -Z -p 10 -z 1
+# KSM test with 2 NUMA nodes and merge_across_nodes = 1
+CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 1
+# KSM test with 2 NUMA nodes and merge_across_nodes = 0
+CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 0
+
+CATEGORY="ksm" run_test ./ksm_functional_tests
+
+# protection_keys tests
+nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+if [ -x ./protection_keys_32 ]
+then
+	CATEGORY="pkey" run_test ./protection_keys_32
+fi
+
+if [ -x ./protection_keys_64 ]
+then
+	CATEGORY="pkey" run_test ./protection_keys_64
+fi
+echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
+
+if [ -x ./soft-dirty ]
+then
+	CATEGORY="soft_dirty" run_test ./soft-dirty
+fi
+
+CATEGORY="pagemap" run_test ./pagemap_ioctl
+
+CATEGORY="pfnmap" run_test ./pfnmap
+
+# COW tests
+CATEGORY="cow" run_test ./cow
+
+CATEGORY="thp" run_test ./khugepaged
+
+CATEGORY="thp" run_test ./khugepaged -s 2
+
+CATEGORY="thp" run_test ./khugepaged all:shmem
+
+CATEGORY="thp" run_test ./khugepaged -s 4 all:shmem
+
+CATEGORY="thp" run_test ./transhuge-stress -d 20
+
+# Try to create XFS if not provided
+if [ -z "${SPLIT_HUGE_PAGE_TEST_XFS_PATH}" ]; then
+    if [ "${HAVE_HUGEPAGES}" = "1" ]; then
+	if test_selected "thp"; then
+	    if grep xfs /proc/filesystems &>/dev/null; then
+		XFS_IMG=$(mktemp /tmp/xfs_img_XXXXXX)
+		SPLIT_HUGE_PAGE_TEST_XFS_PATH=$(mktemp -d /tmp/xfs_dir_XXXXXX)
+		truncate -s 314572800 ${XFS_IMG}
+		mkfs.xfs -q ${XFS_IMG}
+		mount -o loop ${XFS_IMG} ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
+		MOUNTED_XFS=1
+	    fi
+	fi
+    fi
+fi
+
+CATEGORY="thp" run_test ./split_huge_page_test ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
+
+if [ -n "${MOUNTED_XFS}" ]; then
+    umount ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
+    rmdir ${SPLIT_HUGE_PAGE_TEST_XFS_PATH}
+    rm -f ${XFS_IMG}
+fi
+
+CATEGORY="migration" run_test ./migration
+
+CATEGORY="mkdirty" run_test ./mkdirty
+
+CATEGORY="mdwe" run_test ./mdwe_test
+
+CATEGORY="page_frag" run_test ./test_page_frag.sh smoke
+
+CATEGORY="page_frag" run_test ./test_page_frag.sh aligned
+
+CATEGORY="page_frag" run_test ./test_page_frag.sh nonaligned
+
+CATEGORY="rmap" run_test ./rmap
+
+if [ "${HAVE_HUGEPAGES}" = 1 ]; then
+	echo "$orig_nr_hugepgs" > /proc/sys/vm/nr_hugepages
+fi
+
+echo "SUMMARY: PASS=${count_pass} SKIP=${count_skip} FAIL=${count_fail}" | tap_prefix
+echo "1..${count_total}" | tap_output
+
+exit $exitcode
diff --git a/tools/testing/selftests/mm/settings b/tools/testing/selftests/mm/settings
new file mode 100644
index 000000000000..e2206265f67c
--- /dev/null
+++ b/tools/testing/selftests/mm/settings
@@ -0,0 +1 @@
+timeout=900
diff --git a/tools/testing/selftests/mm/soft-dirty.c b/tools/testing/selftests/mm/soft-dirty.c
new file mode 100644
index 000000000000..59c0dbe99a9b
--- /dev/null
+++ b/tools/testing/selftests/mm/soft-dirty.c
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <malloc.h>
+#include <sys/mman.h>
+
+#include "kselftest.h"
+#include "vm_util.h"
+#include "thp_settings.h"
+
+#define PAGEMAP_FILE_PATH "/proc/self/pagemap"
+#define TEST_ITERATIONS 10000
+
+static void test_simple(int pagemap_fd, int pagesize)
+{
+	int i;
+	char *map;
+
+	map = aligned_alloc(pagesize, pagesize);
+	if (!map)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	clear_softdirty();
+
+	for (i = 0 ; i < TEST_ITERATIONS; i++) {
+		if (pagemap_is_softdirty(pagemap_fd, map) == 1) {
+			ksft_print_msg("dirty bit was 1, but should be 0 (i=%d)\n", i);
+			break;
+		}
+
+		clear_softdirty();
+		// Write something to the page to get the dirty bit enabled on the page
+		map[0]++;
+
+		if (pagemap_is_softdirty(pagemap_fd, map) == 0) {
+			ksft_print_msg("dirty bit was 0, but should be 1 (i=%d)\n", i);
+			break;
+		}
+
+		clear_softdirty();
+	}
+	free(map);
+
+	ksft_test_result(i == TEST_ITERATIONS, "Test %s\n", __func__);
+}
+
+static void test_vma_reuse(int pagemap_fd, int pagesize)
+{
+	char *map, *map2;
+
+	map = mmap(NULL, pagesize, (PROT_READ | PROT_WRITE), (MAP_PRIVATE | MAP_ANON), -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed");
+
+	// The kernel always marks new regions as soft dirty
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 1,
+			 "Test %s dirty bit of allocated page\n", __func__);
+
+	clear_softdirty();
+	munmap(map, pagesize);
+
+	map2 = mmap(NULL, pagesize, (PROT_READ | PROT_WRITE), (MAP_PRIVATE | MAP_ANON), -1, 0);
+	if (map2 == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed");
+
+	// Dirty bit is set for new regions even if they are reused
+	if (map == map2)
+		ksft_test_result(pagemap_is_softdirty(pagemap_fd, map2) == 1,
+				 "Test %s dirty bit of reused address page\n", __func__);
+	else
+		ksft_test_result_skip("Test %s dirty bit of reused address page\n", __func__);
+
+	munmap(map2, pagesize);
+}
+
+static void test_hugepage(int pagemap_fd, int pagesize)
+{
+	char *map;
+	int i, ret;
+
+	if (!thp_is_enabled()) {
+		ksft_test_result_skip("Transparent Hugepages not available\n");
+		return;
+	}
+
+	size_t hpage_len = read_pmd_pagesize();
+	if (!hpage_len)
+		ksft_exit_fail_msg("Reading PMD pagesize failed");
+
+	map = memalign(hpage_len, hpage_len);
+	if (!map)
+		ksft_exit_fail_msg("memalign failed\n");
+
+	ret = madvise(map, hpage_len, MADV_HUGEPAGE);
+	if (ret)
+		ksft_exit_fail_msg("madvise failed %d\n", ret);
+
+	for (i = 0; i < hpage_len; i++)
+		map[i] = (char)i;
+
+	if (check_huge_anon(map, 1, hpage_len)) {
+		ksft_test_result_pass("Test %s huge page allocation\n", __func__);
+
+		clear_softdirty();
+		for (i = 0 ; i < TEST_ITERATIONS ; i++) {
+			if (pagemap_is_softdirty(pagemap_fd, map) == 1) {
+				ksft_print_msg("dirty bit was 1, but should be 0 (i=%d)\n", i);
+				break;
+			}
+
+			clear_softdirty();
+			// Write something to the page to get the dirty bit enabled on the page
+			map[0]++;
+
+			if (pagemap_is_softdirty(pagemap_fd, map) == 0) {
+				ksft_print_msg("dirty bit was 0, but should be 1 (i=%d)\n", i);
+				break;
+			}
+			clear_softdirty();
+		}
+
+		ksft_test_result(i == TEST_ITERATIONS, "Test %s huge page dirty bit\n", __func__);
+	} else {
+		// hugepage allocation failed. skip these tests
+		ksft_test_result_skip("Test %s huge page allocation\n", __func__);
+		ksft_test_result_skip("Test %s huge page dirty bit\n", __func__);
+	}
+	free(map);
+}
+
+static void test_mprotect(int pagemap_fd, int pagesize, bool anon)
+{
+	const char *type[] = {"file", "anon"};
+	const char *fname = "./soft-dirty-test-file";
+	int test_fd = 0;
+	char *map;
+
+	if (anon) {
+		map = mmap(NULL, pagesize, PROT_READ|PROT_WRITE,
+			   MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+		if (!map)
+			ksft_exit_fail_msg("anon mmap failed\n");
+	} else {
+		test_fd = open(fname, O_RDWR | O_CREAT, 0664);
+		if (test_fd < 0) {
+			ksft_test_result_skip("Test %s open() file failed\n", __func__);
+			return;
+		}
+		unlink(fname);
+		ftruncate(test_fd, pagesize);
+		map = mmap(NULL, pagesize, PROT_READ|PROT_WRITE,
+			   MAP_SHARED, test_fd, 0);
+		if (!map)
+			ksft_exit_fail_msg("file mmap failed\n");
+	}
+
+	*map = 1;
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 1,
+			 "Test %s-%s dirty bit of new written page\n",
+			 __func__, type[anon]);
+	clear_softdirty();
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 0,
+			 "Test %s-%s soft-dirty clear after clear_refs\n",
+			 __func__, type[anon]);
+	mprotect(map, pagesize, PROT_READ);
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 0,
+			 "Test %s-%s soft-dirty clear after marking RO\n",
+			 __func__, type[anon]);
+	mprotect(map, pagesize, PROT_READ|PROT_WRITE);
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 0,
+			 "Test %s-%s soft-dirty clear after marking RW\n",
+			 __func__, type[anon]);
+	*map = 2;
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 1,
+			 "Test %s-%s soft-dirty after rewritten\n",
+			 __func__, type[anon]);
+
+	munmap(map, pagesize);
+
+	if (!anon)
+		close(test_fd);
+}
+
+static void test_merge(int pagemap_fd, int pagesize)
+{
+	char *reserved, *map, *map2;
+
+	/*
+	 * Reserve space for tests:
+	 *
+	 *   ---padding to ---
+	 *   |   avoid adj.  |
+	 *   v     merge     v
+	 * |---|---|---|---|---|
+	 * |   | 1 | 2 | 3 |   |
+	 * |---|---|---|---|---|
+	 */
+	reserved = mmap(NULL, 5 * pagesize, PROT_NONE,
+			MAP_ANON | MAP_PRIVATE, -1, 0);
+	if (reserved == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+	munmap(reserved, 4 * pagesize);
+
+	/*
+	 * Establish initial VMA:
+	 *
+	 *      S/D
+	 * |---|---|---|---|---|
+	 * |   | 1 |   |   |   |
+	 * |---|---|---|---|---|
+	 */
+	map = mmap(&reserved[pagesize], pagesize, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	/* This will clear VM_SOFTDIRTY too. */
+	clear_softdirty();
+
+	/*
+	 * Now place a new mapping which will be marked VM_SOFTDIRTY. Away from
+	 * map:
+	 *
+	 *       -      S/D
+	 * |---|---|---|---|---|
+	 * |   | 1 |   | 2 |   |
+	 * |---|---|---|---|---|
+	 */
+	map2 = mmap(&reserved[3 * pagesize], pagesize, PROT_READ | PROT_WRITE,
+		    MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (map2 == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	/*
+	 * Now remap it immediately adjacent to map, if the merge correctly
+	 * propagates VM_SOFTDIRTY, we should then observe the VMA as a whole
+	 * being marked soft-dirty:
+	 *
+	 *       merge
+	 *        S/D
+	 * |---|-------|---|---|
+	 * |   |   1   |   |   |
+	 * |---|-------|---|---|
+	 */
+	map2 = mremap(map2, pagesize, pagesize, MREMAP_FIXED | MREMAP_MAYMOVE,
+		      &reserved[2 * pagesize]);
+	if (map2 == MAP_FAILED)
+		ksft_exit_fail_msg("mremap failed\n");
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 1,
+			 "Test %s-anon soft-dirty after remap merge 1st pg\n",
+			 __func__);
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map2) == 1,
+			 "Test %s-anon soft-dirty after remap merge 2nd pg\n",
+			 __func__);
+
+	munmap(map, 2 * pagesize);
+
+	/*
+	 * Now establish another VMA:
+	 *
+	 *      S/D
+	 * |---|---|---|---|---|
+	 * |   | 1 |   |   |   |
+	 * |---|---|---|---|---|
+	 */
+	map = mmap(&reserved[pagesize], pagesize, PROT_READ | PROT_WRITE,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	/* Clear VM_SOFTDIRTY... */
+	clear_softdirty();
+	/* ...and establish incompatible adjacent VMA:
+	 *
+	 *       -  S/D
+	 * |---|---|---|---|---|
+	 * |   | 1 | 2 |   |   |
+	 * |---|---|---|---|---|
+	 */
+	map2 = mmap(&reserved[2 * pagesize], pagesize,
+	PROT_READ | PROT_WRITE | PROT_EXEC,
+		   MAP_ANON | MAP_PRIVATE | MAP_FIXED, -1, 0);
+	if (map2 == MAP_FAILED)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	/*
+	 * Now mprotect() VMA 1 so it's compatible with 2 and therefore merges:
+	 *
+	 *       merge
+	 *        S/D
+	 * |---|-------|---|---|
+	 * |   |   1   |   |   |
+	 * |---|-------|---|---|
+	 */
+	if (mprotect(map, pagesize, PROT_READ | PROT_WRITE | PROT_EXEC))
+		ksft_exit_fail_msg("mprotect failed\n");
+
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map) == 1,
+			 "Test %s-anon soft-dirty after mprotect merge 1st pg\n",
+			 __func__);
+	ksft_test_result(pagemap_is_softdirty(pagemap_fd, map2) == 1,
+			 "Test %s-anon soft-dirty after mprotect merge 2nd pg\n",
+			 __func__);
+
+	munmap(map, 2 * pagesize);
+}
+
+static void test_mprotect_anon(int pagemap_fd, int pagesize)
+{
+	test_mprotect(pagemap_fd, pagesize, true);
+}
+
+static void test_mprotect_file(int pagemap_fd, int pagesize)
+{
+	test_mprotect(pagemap_fd, pagesize, false);
+}
+
+int main(int argc, char **argv)
+{
+	int pagemap_fd;
+	int pagesize;
+
+	ksft_print_header();
+
+	if (!softdirty_supported())
+		ksft_exit_skip("soft-dirty is not support\n");
+
+	ksft_set_plan(19);
+	pagemap_fd = open(PAGEMAP_FILE_PATH, O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_fail_msg("Failed to open %s\n", PAGEMAP_FILE_PATH);
+
+	pagesize = getpagesize();
+
+	test_simple(pagemap_fd, pagesize);
+	test_vma_reuse(pagemap_fd, pagesize);
+	test_hugepage(pagemap_fd, pagesize);
+	test_mprotect_anon(pagemap_fd, pagesize);
+	test_mprotect_file(pagemap_fd, pagesize);
+	test_merge(pagemap_fd, pagesize);
+
+	close(pagemap_fd);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/split_huge_page_test.c b/tools/testing/selftests/mm/split_huge_page_test.c
new file mode 100644
index 000000000000..40799f3f0213
--- /dev/null
+++ b/tools/testing/selftests/mm/split_huge_page_test.c
@@ -0,0 +1,837 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A test of splitting PMD THPs and PTE-mapped THPs from a specified virtual
+ * address range in a process via <debugfs>/split_huge_pages interface.
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/param.h>
+#include <malloc.h>
+#include <stdbool.h>
+#include <time.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+uint64_t pagesize;
+unsigned int pageshift;
+uint64_t pmd_pagesize;
+unsigned int pmd_order;
+int *expected_orders;
+
+#define SPLIT_DEBUGFS "/sys/kernel/debug/split_huge_pages"
+#define SMAP_PATH "/proc/self/smaps"
+#define INPUT_MAX 80
+
+#define PID_FMT "%d,0x%lx,0x%lx,%d"
+#define PID_FMT_OFFSET "%d,0x%lx,0x%lx,%d,%d"
+#define PATH_FMT "%s,0x%lx,0x%lx,%d"
+
+const char *pagemap_proc = "/proc/self/pagemap";
+const char *kpageflags_proc = "/proc/kpageflags";
+int pagemap_fd;
+int kpageflags_fd;
+
+static bool is_backed_by_folio(char *vaddr, int order, int pagemap_fd,
+		int kpageflags_fd)
+{
+	const uint64_t folio_head_flags = KPF_THP | KPF_COMPOUND_HEAD;
+	const uint64_t folio_tail_flags = KPF_THP | KPF_COMPOUND_TAIL;
+	const unsigned long nr_pages = 1UL << order;
+	unsigned long pfn_head;
+	uint64_t pfn_flags;
+	unsigned long pfn;
+	unsigned long i;
+
+	pfn = pagemap_get_pfn(pagemap_fd, vaddr);
+
+	/* non present page */
+	if (pfn == -1UL)
+		return false;
+
+	if (pageflags_get(pfn, kpageflags_fd, &pfn_flags))
+		goto fail;
+
+	/* check for order-0 pages */
+	if (!order) {
+		if (pfn_flags & (folio_head_flags | folio_tail_flags))
+			return false;
+		return true;
+	}
+
+	/* non THP folio */
+	if (!(pfn_flags & KPF_THP))
+		return false;
+
+	pfn_head = pfn & ~(nr_pages - 1);
+
+	if (pageflags_get(pfn_head, kpageflags_fd, &pfn_flags))
+		goto fail;
+
+	/* head PFN has no compound_head flag set */
+	if ((pfn_flags & folio_head_flags) != folio_head_flags)
+		return false;
+
+	/* check all tail PFN flags */
+	for (i = 1; i < nr_pages; i++) {
+		if (pageflags_get(pfn_head + i, kpageflags_fd, &pfn_flags))
+			goto fail;
+		if ((pfn_flags & folio_tail_flags) != folio_tail_flags)
+			return false;
+	}
+
+	/*
+	 * check the PFN after this folio, but if its flags cannot be obtained,
+	 * assume this folio has the expected order
+	 */
+	if (pageflags_get(pfn_head + nr_pages, kpageflags_fd, &pfn_flags))
+		return true;
+
+	/* If we find another tail page, then the folio is larger. */
+	return (pfn_flags & folio_tail_flags) != folio_tail_flags;
+fail:
+	ksft_exit_fail_msg("Failed to get folio info\n");
+	return false;
+}
+
+static int vaddr_pageflags_get(char *vaddr, int pagemap_fd, int kpageflags_fd,
+		uint64_t *flags)
+{
+	unsigned long pfn;
+
+	pfn = pagemap_get_pfn(pagemap_fd, vaddr);
+
+	/* non-present PFN */
+	if (pfn == -1UL)
+		return 1;
+
+	if (pageflags_get(pfn, kpageflags_fd, flags))
+		return -1;
+
+	return 0;
+}
+
+/*
+ * gather_after_split_folio_orders - scan through [vaddr_start, len) and record
+ * folio orders
+ *
+ * @vaddr_start: start vaddr
+ * @len: range length
+ * @pagemap_fd: file descriptor to /proc/<pid>/pagemap
+ * @kpageflags_fd: file descriptor to /proc/kpageflags
+ * @orders: output folio order array
+ * @nr_orders: folio order array size
+ *
+ * gather_after_split_folio_orders() scan through [vaddr_start, len) and check
+ * all folios within the range and record their orders. All order-0 pages will
+ * be recorded. Non-present vaddr is skipped.
+ *
+ * NOTE: the function is used to check folio orders after a split is performed,
+ * so it assumes [vaddr_start, len) fully maps to after-split folios within that
+ * range.
+ *
+ * Return: 0 - no error, -1 - unhandled cases
+ */
+static int gather_after_split_folio_orders(char *vaddr_start, size_t len,
+		int pagemap_fd, int kpageflags_fd, int orders[], int nr_orders)
+{
+	uint64_t page_flags = 0;
+	int cur_order = -1;
+	char *vaddr;
+
+	if (pagemap_fd == -1 || kpageflags_fd == -1)
+		return -1;
+	if (!orders)
+		return -1;
+	if (nr_orders <= 0)
+		return -1;
+
+	for (vaddr = vaddr_start; vaddr < vaddr_start + len;) {
+		char *next_folio_vaddr;
+		int status;
+
+		status = vaddr_pageflags_get(vaddr, pagemap_fd, kpageflags_fd,
+					&page_flags);
+		if (status < 0)
+			return -1;
+
+		/* skip non present vaddr */
+		if (status == 1) {
+			vaddr += psize();
+			continue;
+		}
+
+		/* all order-0 pages with possible false postive (non folio) */
+		if (!(page_flags & (KPF_COMPOUND_HEAD | KPF_COMPOUND_TAIL))) {
+			orders[0]++;
+			vaddr += psize();
+			continue;
+		}
+
+		/* skip non thp compound pages */
+		if (!(page_flags & KPF_THP)) {
+			vaddr += psize();
+			continue;
+		}
+
+		/* vpn points to part of a THP at this point */
+		if (page_flags & KPF_COMPOUND_HEAD)
+			cur_order = 1;
+		else {
+			vaddr += psize();
+			continue;
+		}
+
+		next_folio_vaddr = vaddr + (1UL << (cur_order + pshift()));
+
+		if (next_folio_vaddr >= vaddr_start + len)
+			break;
+
+		while ((status = vaddr_pageflags_get(next_folio_vaddr,
+						     pagemap_fd, kpageflags_fd,
+						     &page_flags)) >= 0) {
+			/*
+			 * non present vaddr, next compound head page, or
+			 * order-0 page
+			 */
+			if (status == 1 ||
+			    (page_flags & KPF_COMPOUND_HEAD) ||
+			    !(page_flags & (KPF_COMPOUND_HEAD | KPF_COMPOUND_TAIL))) {
+				if (cur_order < nr_orders) {
+					orders[cur_order]++;
+					cur_order = -1;
+					vaddr = next_folio_vaddr;
+				}
+				break;
+			}
+
+			cur_order++;
+			next_folio_vaddr = vaddr + (1UL << (cur_order + pshift()));
+		}
+
+		if (status < 0)
+			return status;
+	}
+	if (cur_order > 0 && cur_order < nr_orders)
+		orders[cur_order]++;
+	return 0;
+}
+
+static int check_after_split_folio_orders(char *vaddr_start, size_t len,
+		int pagemap_fd, int kpageflags_fd, int orders[], int nr_orders)
+{
+	int *vaddr_orders;
+	int status;
+	int i;
+
+	vaddr_orders = (int *)malloc(sizeof(int) * nr_orders);
+
+	if (!vaddr_orders)
+		ksft_exit_fail_msg("Cannot allocate memory for vaddr_orders");
+
+	memset(vaddr_orders, 0, sizeof(int) * nr_orders);
+	status = gather_after_split_folio_orders(vaddr_start, len, pagemap_fd,
+				     kpageflags_fd, vaddr_orders, nr_orders);
+	if (status)
+		ksft_exit_fail_msg("gather folio info failed\n");
+
+	for (i = 0; i < nr_orders; i++)
+		if (vaddr_orders[i] != orders[i]) {
+			ksft_print_msg("order %d: expected: %d got %d\n", i,
+				       orders[i], vaddr_orders[i]);
+			status = -1;
+		}
+
+	free(vaddr_orders);
+	return status;
+}
+
+static void write_file(const char *path, const char *buf, size_t buflen)
+{
+	int fd;
+	ssize_t numwritten;
+
+	fd = open(path, O_WRONLY);
+	if (fd == -1)
+		ksft_exit_fail_msg("%s open failed: %s\n", path, strerror(errno));
+
+	numwritten = write(fd, buf, buflen - 1);
+	close(fd);
+	if (numwritten < 1)
+		ksft_exit_fail_msg("Write failed\n");
+}
+
+static void write_debugfs(const char *fmt, ...)
+{
+	char input[INPUT_MAX];
+	int ret;
+	va_list argp;
+
+	va_start(argp, fmt);
+	ret = vsnprintf(input, INPUT_MAX, fmt, argp);
+	va_end(argp);
+
+	if (ret >= INPUT_MAX)
+		ksft_exit_fail_msg("%s: Debugfs input is too long\n", __func__);
+
+	write_file(SPLIT_DEBUGFS, input, ret + 1);
+}
+
+static char *allocate_zero_filled_hugepage(size_t len)
+{
+	char *result;
+	size_t i;
+
+	result = memalign(pmd_pagesize, len);
+	if (!result) {
+		printf("Fail to allocate memory\n");
+		exit(EXIT_FAILURE);
+	}
+
+	madvise(result, len, MADV_HUGEPAGE);
+
+	for (i = 0; i < len; i++)
+		result[i] = (char)0;
+
+	return result;
+}
+
+static void verify_rss_anon_split_huge_page_all_zeroes(char *one_page, int nr_hpages, size_t len)
+{
+	unsigned long rss_anon_before, rss_anon_after;
+	size_t i;
+
+	if (!check_huge_anon(one_page, nr_hpages, pmd_pagesize))
+		ksft_exit_fail_msg("No THP is allocated\n");
+
+	rss_anon_before = rss_anon();
+	if (!rss_anon_before)
+		ksft_exit_fail_msg("No RssAnon is allocated before split\n");
+
+	/* split all THPs */
+	write_debugfs(PID_FMT, getpid(), (uint64_t)one_page,
+		      (uint64_t)one_page + len, 0);
+
+	for (i = 0; i < len; i++)
+		if (one_page[i] != (char)0)
+			ksft_exit_fail_msg("%ld byte corrupted\n", i);
+
+	if (!check_huge_anon(one_page, 0, pmd_pagesize))
+		ksft_exit_fail_msg("Still AnonHugePages not split\n");
+
+	rss_anon_after = rss_anon();
+	if (rss_anon_after >= rss_anon_before)
+		ksft_exit_fail_msg("Incorrect RssAnon value. Before: %ld After: %ld\n",
+		       rss_anon_before, rss_anon_after);
+}
+
+static void split_pmd_zero_pages(void)
+{
+	char *one_page;
+	int nr_hpages = 4;
+	size_t len = nr_hpages * pmd_pagesize;
+
+	one_page = allocate_zero_filled_hugepage(len);
+	verify_rss_anon_split_huge_page_all_zeroes(one_page, nr_hpages, len);
+	ksft_test_result_pass("Split zero filled huge pages successful\n");
+	free(one_page);
+}
+
+static void split_pmd_thp_to_order(int order)
+{
+	char *one_page;
+	size_t len = 4 * pmd_pagesize;
+	size_t i;
+
+	one_page = memalign(pmd_pagesize, len);
+	if (!one_page)
+		ksft_exit_fail_msg("Fail to allocate memory: %s\n", strerror(errno));
+
+	madvise(one_page, len, MADV_HUGEPAGE);
+
+	for (i = 0; i < len; i++)
+		one_page[i] = (char)i;
+
+	if (!check_huge_anon(one_page, 4, pmd_pagesize))
+		ksft_exit_fail_msg("No THP is allocated\n");
+
+	/* split all THPs */
+	write_debugfs(PID_FMT, getpid(), (uint64_t)one_page,
+		(uint64_t)one_page + len, order);
+
+	for (i = 0; i < len; i++)
+		if (one_page[i] != (char)i)
+			ksft_exit_fail_msg("%ld byte corrupted\n", i);
+
+	memset(expected_orders, 0, sizeof(int) * (pmd_order + 1));
+	expected_orders[order] = 4 << (pmd_order - order);
+
+	if (check_after_split_folio_orders(one_page, len, pagemap_fd,
+					   kpageflags_fd, expected_orders,
+					   (pmd_order + 1)))
+		ksft_exit_fail_msg("Unexpected THP split\n");
+
+	if (!check_huge_anon(one_page, 0, pmd_pagesize))
+		ksft_exit_fail_msg("Still AnonHugePages not split\n");
+
+	ksft_test_result_pass("Split huge pages to order %d successful\n", order);
+	free(one_page);
+}
+
+static void split_pte_mapped_thp(void)
+{
+	const size_t nr_thps = 4;
+	const size_t thp_area_size = nr_thps * pmd_pagesize;
+	const size_t page_area_size = nr_thps * pagesize;
+	char *thp_area, *tmp, *page_area = MAP_FAILED;
+	size_t i;
+
+	thp_area = mmap((void *)(1UL << 30), thp_area_size, PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (thp_area == MAP_FAILED) {
+		ksft_test_result_fail("Fail to allocate memory: %s\n", strerror(errno));
+		return;
+	}
+
+	madvise(thp_area, thp_area_size, MADV_HUGEPAGE);
+
+	for (i = 0; i < thp_area_size; i++)
+		thp_area[i] = (char)i;
+
+	if (!check_huge_anon(thp_area, nr_thps, pmd_pagesize)) {
+		ksft_test_result_skip("Not all THPs allocated\n");
+		goto out;
+	}
+
+	/*
+	 * To challenge spitting code, we will mremap a single page of each
+	 * THP (page[i] of thp[i]) in the thp_area into page_area. This will
+	 * replace the PMD mappings in the thp_area by PTE mappings first,
+	 * but leaving the THP unsplit, to then create a page-sized hole in
+	 * the thp_area.
+	 * We will then manually trigger splitting of all THPs through the
+	 * single mremap'ed pages of each THP in the page_area.
+	 */
+	page_area = mmap(NULL, page_area_size, PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (page_area == MAP_FAILED) {
+		ksft_test_result_fail("Fail to allocate memory: %s\n", strerror(errno));
+		goto out;
+	}
+
+	for (i = 0; i < nr_thps; i++) {
+		tmp = mremap(thp_area + pmd_pagesize * i + pagesize * i,
+			     pagesize, pagesize, MREMAP_MAYMOVE|MREMAP_FIXED,
+			     page_area + pagesize * i);
+		if (tmp != MAP_FAILED)
+			continue;
+		ksft_test_result_fail("mremap failed: %s\n", strerror(errno));
+		goto out;
+	}
+
+	/*
+	 * Verify that our THPs were not split yet. Note that
+	 * check_huge_anon() cannot be used as it checks for PMD mappings.
+	 */
+	for (i = 0; i < nr_thps; i++) {
+		if (is_backed_by_folio(page_area + i * pagesize, pmd_order,
+				       pagemap_fd, kpageflags_fd))
+			continue;
+		ksft_test_result_fail("THP %zu missing after mremap\n", i);
+		goto out;
+	}
+
+	/* Split all THPs through the remapped pages. */
+	write_debugfs(PID_FMT, getpid(), (uint64_t)page_area,
+		      (uint64_t)page_area + page_area_size, 0);
+
+	/* Corruption during mremap or split? */
+	for (i = 0; i < page_area_size; i++) {
+		if (page_area[i] == (char)i)
+			continue;
+		ksft_test_result_fail("%zu byte corrupted\n", i);
+		goto out;
+	}
+
+	/* Split failed? */
+	for (i = 0; i < nr_thps; i++) {
+		if (is_backed_by_folio(page_area + i * pagesize, 0,
+				       pagemap_fd, kpageflags_fd))
+			continue;
+		ksft_test_result_fail("THP %zu not split\n", i);
+	}
+
+	ksft_test_result_pass("Split PTE-mapped huge pages successful\n");
+out:
+	munmap(thp_area, thp_area_size);
+	if (page_area != MAP_FAILED)
+		munmap(page_area, page_area_size);
+}
+
+static void split_file_backed_thp(int order)
+{
+	int status;
+	int fd;
+	char tmpfs_template[] = "/tmp/thp_split_XXXXXX";
+	const char *tmpfs_loc = mkdtemp(tmpfs_template);
+	char testfile[INPUT_MAX];
+	ssize_t num_written, num_read;
+	char *file_buf1, *file_buf2;
+	uint64_t pgoff_start = 0, pgoff_end = 1024;
+	int i;
+
+	ksft_print_msg("Please enable pr_debug in split_huge_pages_in_file() for more info.\n");
+
+	file_buf1 = (char *)malloc(pmd_pagesize);
+	file_buf2 = (char *)malloc(pmd_pagesize);
+
+	if (!file_buf1 || !file_buf2) {
+		ksft_print_msg("cannot allocate file buffers\n");
+		goto out;
+	}
+
+	for (i = 0; i < pmd_pagesize; i++)
+		file_buf1[i] = (char)i;
+	memset(file_buf2, 0, pmd_pagesize);
+
+	status = mount("tmpfs", tmpfs_loc, "tmpfs", 0, "huge=always,size=4m");
+
+	if (status)
+		ksft_exit_fail_msg("Unable to create a tmpfs for testing\n");
+
+	status = snprintf(testfile, INPUT_MAX, "%s/thp_file", tmpfs_loc);
+	if (status >= INPUT_MAX) {
+		ksft_print_msg("Fail to create file-backed THP split testing file\n");
+		goto cleanup;
+	}
+
+	fd = open(testfile, O_CREAT|O_RDWR, 0664);
+	if (fd == -1) {
+		ksft_perror("Cannot open testing file");
+		goto cleanup;
+	}
+
+	/* write pmd size data to the file, so a file-backed THP can be allocated */
+	num_written = write(fd, file_buf1, pmd_pagesize);
+
+	if (num_written == -1 || num_written != pmd_pagesize) {
+		ksft_perror("Failed to write data to testing file");
+		goto close_file;
+	}
+
+	/* split the file-backed THP */
+	write_debugfs(PATH_FMT, testfile, pgoff_start, pgoff_end, order);
+
+	/* check file content after split */
+	status = lseek(fd, 0, SEEK_SET);
+	if (status == -1) {
+		ksft_perror("Cannot lseek file");
+		goto close_file;
+	}
+
+	num_read = read(fd, file_buf2, num_written);
+	if (num_read == -1 || num_read != num_written) {
+		ksft_perror("Cannot read file content back");
+		goto close_file;
+	}
+
+	if (strncmp(file_buf1, file_buf2, pmd_pagesize) != 0) {
+		ksft_print_msg("File content changed\n");
+		goto close_file;
+	}
+
+	close(fd);
+	status = unlink(testfile);
+	if (status) {
+		ksft_perror("Cannot remove testing file");
+		goto cleanup;
+	}
+
+	status = umount(tmpfs_loc);
+	if (status) {
+		rmdir(tmpfs_loc);
+		ksft_exit_fail_msg("Unable to umount %s\n", tmpfs_loc);
+	}
+
+	status = rmdir(tmpfs_loc);
+	if (status)
+		ksft_exit_fail_msg("cannot remove tmp dir: %s\n", strerror(errno));
+
+	ksft_print_msg("Please check dmesg for more information\n");
+	ksft_test_result_pass("File-backed THP split to order %d test done\n", order);
+	return;
+
+close_file:
+	close(fd);
+cleanup:
+	umount(tmpfs_loc);
+	rmdir(tmpfs_loc);
+out:
+	ksft_exit_fail_msg("Error occurred\n");
+}
+
+static bool prepare_thp_fs(const char *xfs_path, char *thp_fs_template,
+		const char **thp_fs_loc)
+{
+	if (xfs_path) {
+		*thp_fs_loc = xfs_path;
+		return false;
+	}
+
+	*thp_fs_loc = mkdtemp(thp_fs_template);
+
+	if (!*thp_fs_loc)
+		ksft_exit_fail_msg("cannot create temp folder\n");
+
+	return true;
+}
+
+static void cleanup_thp_fs(const char *thp_fs_loc, bool created_tmp)
+{
+	int status;
+
+	if (!created_tmp)
+		return;
+
+	status = rmdir(thp_fs_loc);
+	if (status)
+		ksft_exit_fail_msg("cannot remove tmp dir: %s\n",
+				   strerror(errno));
+}
+
+static int create_pagecache_thp_and_fd(const char *testfile, size_t fd_size,
+		int *fd, char **addr)
+{
+	size_t i;
+	unsigned char buf[1024];
+
+	srand(time(NULL));
+
+	*fd = open(testfile, O_CREAT | O_RDWR, 0664);
+	if (*fd == -1)
+		ksft_exit_fail_msg("Failed to create a file at %s\n", testfile);
+
+	assert(fd_size % sizeof(buf) == 0);
+	for (i = 0; i < sizeof(buf); i++)
+		buf[i] = (unsigned char)i;
+	for (i = 0; i < fd_size; i += sizeof(buf))
+		write(*fd, buf, sizeof(buf));
+
+	close(*fd);
+	sync();
+	*fd = open("/proc/sys/vm/drop_caches", O_WRONLY);
+	if (*fd == -1) {
+		ksft_perror("open drop_caches");
+		goto err_out_unlink;
+	}
+	if (write(*fd, "3", 1) != 1) {
+		ksft_perror("write to drop_caches");
+		goto err_out_unlink;
+	}
+	close(*fd);
+
+	*fd = open(testfile, O_RDWR);
+	if (*fd == -1) {
+		ksft_perror("Failed to open testfile\n");
+		goto err_out_unlink;
+	}
+
+	*addr = mmap(NULL, fd_size, PROT_READ|PROT_WRITE, MAP_SHARED, *fd, 0);
+	if (*addr == (char *)-1) {
+		ksft_perror("cannot mmap");
+		goto err_out_close;
+	}
+	madvise(*addr, fd_size, MADV_HUGEPAGE);
+
+	for (size_t i = 0; i < fd_size; i++) {
+		char *addr2 = *addr + i;
+
+		FORCE_READ(*addr2);
+	}
+
+	if (!check_huge_file(*addr, fd_size / pmd_pagesize, pmd_pagesize)) {
+		ksft_print_msg("No large pagecache folio generated, please provide a filesystem supporting large folio\n");
+		munmap(*addr, fd_size);
+		close(*fd);
+		unlink(testfile);
+		ksft_test_result_skip("Pagecache folio split skipped\n");
+		return -2;
+	}
+	return 0;
+err_out_close:
+	close(*fd);
+err_out_unlink:
+	unlink(testfile);
+	ksft_exit_fail_msg("Failed to create large pagecache folios\n");
+	return -1;
+}
+
+static void split_thp_in_pagecache_to_order_at(size_t fd_size,
+		const char *fs_loc, int order, int offset)
+{
+	int fd;
+	char *split_addr;
+	char *addr;
+	size_t i;
+	char testfile[INPUT_MAX];
+	int err = 0;
+
+	err = snprintf(testfile, INPUT_MAX, "%s/test", fs_loc);
+
+	if (err < 0)
+		ksft_exit_fail_msg("cannot generate right test file name\n");
+
+	err = create_pagecache_thp_and_fd(testfile, fd_size, &fd, &addr);
+	if (err)
+		return;
+
+	err = 0;
+
+	memset(expected_orders, 0, sizeof(int) * (pmd_order + 1));
+	/*
+	 * use [split_addr, split_addr + pagesize) range to split THPs, since
+	 * the debugfs function always split a range with pagesize step and
+	 * providing a full [addr, addr + fd_size) range can trigger multiple
+	 * splits, complicating after-split result checking.
+	 */
+	if (offset == -1) {
+		for (split_addr = addr; split_addr < addr + fd_size; split_addr += pmd_pagesize)
+			write_debugfs(PID_FMT, getpid(), (uint64_t)split_addr,
+				      (uint64_t)split_addr + pagesize, order);
+
+		expected_orders[order] = fd_size / (pagesize << order);
+	} else {
+		int times = fd_size / pmd_pagesize;
+
+		for (split_addr = addr; split_addr < addr + fd_size; split_addr += pmd_pagesize)
+			write_debugfs(PID_FMT_OFFSET, getpid(), (uint64_t)split_addr,
+				      (uint64_t)split_addr + pagesize, order, offset);
+
+		for (i = order + 1; i < pmd_order; i++)
+			expected_orders[i] = times;
+		expected_orders[order] = 2 * times;
+	}
+
+	for (i = 0; i < fd_size; i++)
+		if (*(addr + i) != (char)i) {
+			ksft_print_msg("%lu byte corrupted in the file\n", i);
+			err = EXIT_FAILURE;
+			goto out;
+		}
+
+	if (check_after_split_folio_orders(addr, fd_size, pagemap_fd,
+					   kpageflags_fd, expected_orders,
+					   (pmd_order + 1))) {
+		ksft_print_msg("Unexpected THP split\n");
+		err = 1;
+		goto out;
+	}
+
+	if (!check_huge_file(addr, 0, pmd_pagesize)) {
+		ksft_print_msg("Still FilePmdMapped not split\n");
+		err = EXIT_FAILURE;
+		goto out;
+	}
+
+out:
+	munmap(addr, fd_size);
+	close(fd);
+	unlink(testfile);
+	if (offset == -1) {
+		if (err)
+			ksft_exit_fail_msg("Split PMD-mapped pagecache folio to order %d failed\n", order);
+		ksft_test_result_pass("Split PMD-mapped pagecache folio to order %d passed\n", order);
+	} else {
+		if (err)
+			ksft_exit_fail_msg("Split PMD-mapped pagecache folio to order %d at in-folio offset %d failed\n", order, offset);
+		ksft_test_result_pass("Split PMD-mapped pagecache folio to order %d at in-folio offset %d passed\n", order, offset);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+	size_t fd_size;
+	char *optional_xfs_path = NULL;
+	char fs_loc_template[] = "/tmp/thp_fs_XXXXXX";
+	const char *fs_loc;
+	bool created_tmp;
+	int offset;
+	unsigned int nr_pages;
+	unsigned int tests;
+
+	ksft_print_header();
+
+	if (geteuid() != 0) {
+		ksft_print_msg("Please run the benchmark as root\n");
+		ksft_finished();
+	}
+
+	if (argc > 1)
+		optional_xfs_path = argv[1];
+
+	pagesize = getpagesize();
+	pageshift = ffs(pagesize) - 1;
+	pmd_pagesize = read_pmd_pagesize();
+	if (!pmd_pagesize)
+		ksft_exit_fail_msg("Reading PMD pagesize failed\n");
+
+	nr_pages = pmd_pagesize / pagesize;
+	pmd_order = sz2ord(pmd_pagesize, pagesize);
+
+	expected_orders = (int *)malloc(sizeof(int) * (pmd_order + 1));
+	if (!expected_orders)
+		ksft_exit_fail_msg("Fail to allocate memory: %s\n", strerror(errno));
+
+	tests = 2 + (pmd_order - 1) + (2 * pmd_order) + (pmd_order - 1) * 4 + 2;
+	ksft_set_plan(tests);
+
+	pagemap_fd = open(pagemap_proc, O_RDONLY);
+	if (pagemap_fd == -1)
+		ksft_exit_fail_msg("read pagemap: %s\n", strerror(errno));
+
+	kpageflags_fd = open(kpageflags_proc, O_RDONLY);
+	if (kpageflags_fd == -1)
+		ksft_exit_fail_msg("read kpageflags: %s\n", strerror(errno));
+
+	fd_size = 2 * pmd_pagesize;
+
+	split_pmd_zero_pages();
+
+	for (i = 0; i < pmd_order; i++)
+		if (i != 1)
+			split_pmd_thp_to_order(i);
+
+	split_pte_mapped_thp();
+	for (i = 0; i < pmd_order; i++)
+		split_file_backed_thp(i);
+
+	created_tmp = prepare_thp_fs(optional_xfs_path, fs_loc_template,
+			&fs_loc);
+	for (i = pmd_order - 1; i >= 0; i--)
+		split_thp_in_pagecache_to_order_at(fd_size, fs_loc, i, -1);
+
+	for (i = 0; i < pmd_order; i++)
+		for (offset = 0;
+		     offset < nr_pages;
+		     offset += MAX(nr_pages / 4, 1 << i))
+			split_thp_in_pagecache_to_order_at(fd_size, fs_loc, i, offset);
+	cleanup_thp_fs(fs_loc, created_tmp);
+
+	close(pagemap_fd);
+	close(kpageflags_fd);
+	free(expected_orders);
+
+	ksft_finished();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/test_hmm.sh b/tools/testing/selftests/mm/test_hmm.sh
new file mode 100755
index 000000000000..46e19b5d648d
--- /dev/null
+++ b/tools/testing/selftests/mm/test_hmm.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com>
+#
+# This is a test script for the kernel test driver to analyse vmalloc
+# allocator. Therefore it is just a kernel module loader. You can specify
+# and pass different parameters in order to:
+#     a) analyse performance of vmalloc allocations;
+#     b) stressing and stability check of vmalloc subsystem.
+
+TEST_NAME="test_hmm"
+DRIVER="test_hmm"
+
+# 1 if fails
+exitcode=1
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_test_requirements()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo "$0: Must be run as root"
+		exit $ksft_skip
+	fi
+
+	if ! which modprobe > /dev/null 2>&1; then
+		echo "$0: You need modprobe installed"
+		exit $ksft_skip
+	fi
+
+	if ! modinfo $DRIVER > /dev/null 2>&1; then
+		echo "$0: You must have the following enabled in your kernel:"
+		echo "CONFIG_TEST_HMM=m"
+		exit $ksft_skip
+	fi
+}
+
+load_driver()
+{
+	if [ $# -eq 0 ]; then
+		modprobe $DRIVER > /dev/null 2>&1
+	else
+		if [ $# -eq 2 ]; then
+			modprobe $DRIVER spm_addr_dev0=$1 spm_addr_dev1=$2
+				> /dev/null 2>&1
+		else
+			echo "Missing module parameters. Make sure pass"\
+			"spm_addr_dev0 and spm_addr_dev1"
+			usage
+		fi
+	fi
+}
+
+unload_driver()
+{
+	modprobe -r $DRIVER > /dev/null 2>&1
+}
+
+run_smoke()
+{
+	echo "Running smoke test. Note, this test provides basic coverage."
+
+	load_driver $1 $2
+	$(dirname "${BASH_SOURCE[0]}")/hmm-tests
+	unload_driver
+}
+
+usage()
+{
+	echo -n "Usage: $0"
+	echo
+	echo "Example usage:"
+	echo
+	echo "# Shows help message"
+	echo "./${TEST_NAME}.sh"
+	echo
+	echo "# Smoke testing"
+	echo "./${TEST_NAME}.sh smoke"
+	echo
+	echo "# Smoke testing with SPM enabled"
+	echo "./${TEST_NAME}.sh smoke <spm_addr_dev0> <spm_addr_dev1>"
+	echo
+	exit 0
+}
+
+function run_test()
+{
+	if [ $# -eq 0 ]; then
+		usage
+	else
+		if [ "$1" = "smoke" ]; then
+			run_smoke $2 $3
+		else
+			usage
+		fi
+	fi
+}
+
+check_test_requirements
+run_test $@
+
+exit 0
diff --git a/tools/testing/selftests/mm/test_page_frag.sh b/tools/testing/selftests/mm/test_page_frag.sh
new file mode 100755
index 000000000000..f55b105084cf
--- /dev/null
+++ b/tools/testing/selftests/mm/test_page_frag.sh
@@ -0,0 +1,175 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2024 Yunsheng Lin <linyunsheng@huawei.com>
+# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com>
+#
+# This is a test script for the kernel test driver to test the
+# correctness and performance of page_frag's implementation.
+# Therefore it is just a kernel module loader. You can specify
+# and pass different parameters in order to:
+#     a) analyse performance of page fragment allocations;
+#     b) stressing and stability check of page_frag subsystem.
+
+DRIVER="./page_frag/page_frag_test.ko"
+CPU_LIST=$(grep -m 2 processor /proc/cpuinfo | cut -d ' ' -f 2)
+TEST_CPU_0=$(echo $CPU_LIST | awk '{print $1}')
+
+if [ $(echo $CPU_LIST | wc -w) -gt 1 ]; then
+	TEST_CPU_1=$(echo $CPU_LIST | awk '{print $2}')
+	NR_TEST=100000000
+else
+	TEST_CPU_1=$TEST_CPU_0
+	NR_TEST=1000000
+fi
+
+# 1 if fails
+exitcode=1
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_test_failed_prefix() {
+	if dmesg | grep -q 'page_frag_test failed:';then
+		echo "page_frag_test failed, please check dmesg"
+		exit $exitcode
+	fi
+}
+
+#
+# Static templates for testing of page_frag APIs.
+# Also it is possible to pass any supported parameters manually.
+#
+SMOKE_PARAM="test_push_cpu=$TEST_CPU_0 test_pop_cpu=$TEST_CPU_1"
+NONALIGNED_PARAM="$SMOKE_PARAM test_alloc_len=75 nr_test=$NR_TEST"
+ALIGNED_PARAM="$NONALIGNED_PARAM test_align=1"
+
+check_test_requirements()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo "$0: Must be run as root"
+		exit $ksft_skip
+	fi
+
+	if ! which insmod > /dev/null 2>&1; then
+		echo "$0: You need insmod installed"
+		exit $ksft_skip
+	fi
+
+	if [ ! -f $DRIVER ]; then
+		echo "$0: You need to compile page_frag_test module"
+		exit $ksft_skip
+	fi
+}
+
+run_nonaligned_check()
+{
+	echo "Run performance tests to evaluate how fast nonaligned alloc API is."
+
+	insmod $DRIVER $NONALIGNED_PARAM > /dev/null 2>&1
+}
+
+run_aligned_check()
+{
+	echo "Run performance tests to evaluate how fast aligned alloc API is."
+
+	insmod $DRIVER $ALIGNED_PARAM > /dev/null 2>&1
+}
+
+run_smoke_check()
+{
+	echo "Run smoke test."
+
+	insmod $DRIVER $SMOKE_PARAM > /dev/null 2>&1
+}
+
+usage()
+{
+	echo -n "Usage: $0 [ aligned ] | [ nonaligned ] | | [ smoke ] | "
+	echo "manual parameters"
+	echo
+	echo "Valid tests and parameters:"
+	echo
+	modinfo $DRIVER
+	echo
+	echo "Example usage:"
+	echo
+	echo "# Shows help message"
+	echo "$0"
+	echo
+	echo "# Smoke testing"
+	echo "$0 smoke"
+	echo
+	echo "# Performance testing for nonaligned alloc API"
+	echo "$0 nonaligned"
+	echo
+	echo "# Performance testing for aligned alloc API"
+	echo "$0 aligned"
+	echo
+	exit 0
+}
+
+function validate_passed_args()
+{
+	VALID_ARGS=`modinfo $DRIVER | awk '/parm:/ {print $2}' | sed 's/:.*//'`
+
+	#
+	# Something has been passed, check it.
+	#
+	for passed_arg in $@; do
+		key=${passed_arg//=*/}
+		valid=0
+
+		for valid_arg in $VALID_ARGS; do
+			if [[ $key = $valid_arg ]]; then
+				valid=1
+				break
+			fi
+		done
+
+		if [[ $valid -ne 1 ]]; then
+			echo "Error: key is not correct: ${key}"
+			exit $exitcode
+		fi
+	done
+}
+
+function run_manual_check()
+{
+	#
+	# Validate passed parameters. If there is wrong one,
+	# the script exists and does not execute further.
+	#
+	validate_passed_args $@
+
+	echo "Run the test with following parameters: $@"
+	insmod $DRIVER $@ > /dev/null 2>&1
+}
+
+function run_test()
+{
+	if [ $# -eq 0 ]; then
+		usage
+	else
+		if [[ "$1" = "smoke" ]]; then
+			run_smoke_check
+		elif [[ "$1" = "nonaligned" ]]; then
+			run_nonaligned_check
+		elif [[ "$1" = "aligned" ]]; then
+			run_aligned_check
+		else
+			run_manual_check $@
+		fi
+	fi
+
+	check_test_failed_prefix
+
+	echo "Done."
+	echo "Check the kernel ring buffer to see the summary."
+}
+
+check_test_requirements
+run_test $@
+
+exit 0
diff --git a/tools/testing/selftests/mm/test_vmalloc.sh b/tools/testing/selftests/mm/test_vmalloc.sh
new file mode 100755
index 000000000000..d39096723fca
--- /dev/null
+++ b/tools/testing/selftests/mm/test_vmalloc.sh
@@ -0,0 +1,177 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2018 Uladzislau Rezki (Sony) <urezki@gmail.com>
+#
+# This is a test script for the kernel test driver to analyse vmalloc
+# allocator. Therefore it is just a kernel module loader. You can specify
+# and pass different parameters in order to:
+#     a) analyse performance of vmalloc allocations;
+#     b) stressing and stability check of vmalloc subsystem.
+
+TEST_NAME="vmalloc"
+DRIVER="test_${TEST_NAME}"
+NUM_CPUS=`grep -c ^processor /proc/cpuinfo`
+
+# 1 if fails
+exitcode=1
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+#
+# Static templates for performance, stressing and smoke tests.
+# Also it is possible to pass any supported parameters manualy.
+#
+PERF_PARAM="sequential_test_order=1 test_repeat_count=3"
+SMOKE_PARAM="test_loop_count=10000 test_repeat_count=10"
+STRESS_PARAM="nr_threads=$NUM_CPUS test_repeat_count=20"
+
+check_test_requirements()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo "$0: Must be run as root"
+		exit $ksft_skip
+	fi
+
+	if ! which modprobe > /dev/null 2>&1; then
+		echo "$0: You need modprobe installed"
+		exit $ksft_skip
+	fi
+
+	if ! modinfo $DRIVER > /dev/null 2>&1; then
+		echo "$0: You must have the following enabled in your kernel:"
+		echo "CONFIG_TEST_VMALLOC=m"
+		exit $ksft_skip
+	fi
+}
+
+run_performance_check()
+{
+	echo "Run performance tests to evaluate how fast vmalloc allocation is."
+	echo "It runs all test cases on one single CPU with sequential order."
+
+	modprobe $DRIVER $PERF_PARAM > /dev/null 2>&1
+	echo "Done."
+	echo "Check the kernel message buffer to see the summary."
+}
+
+run_stability_check()
+{
+	echo "Run stability tests. In order to stress vmalloc subsystem all"
+	echo "available test cases are run by NUM_CPUS workers simultaneously."
+	echo "It will take time, so be patient."
+
+	modprobe $DRIVER $STRESS_PARAM > /dev/null 2>&1
+	echo "Done."
+	echo "Check the kernel ring buffer to see the summary."
+}
+
+run_smoke_check()
+{
+	echo "Run smoke test. Note, this test provides basic coverage."
+	echo "Please check $0 output how it can be used"
+	echo "for deep performance analysis as well as stress testing."
+
+	modprobe $DRIVER $SMOKE_PARAM > /dev/null 2>&1
+	echo "Done."
+	echo "Check the kernel ring buffer to see the summary."
+}
+
+usage()
+{
+	echo -n "Usage: $0 [ performance ] | [ stress ] | | [ smoke ] | "
+	echo "manual parameters"
+	echo
+	echo "Valid tests and parameters:"
+	echo
+	modinfo $DRIVER
+	echo
+	echo "Example usage:"
+	echo
+	echo "# Shows help message"
+	echo "./${DRIVER}.sh"
+	echo
+	echo "# Runs 1 test(id_1), repeats it 5 times by NUM_CPUS workers"
+	echo "./${DRIVER}.sh nr_threads=$NUM_CPUS run_test_mask=1 test_repeat_count=5"
+	echo
+	echo -n "# Runs 4 tests(id_1|id_2|id_4|id_16) on one CPU with "
+	echo "sequential order"
+	echo -n "./${DRIVER}.sh sequential_test_order=1 "
+	echo "run_test_mask=23"
+	echo
+	echo -n "# Runs all tests by NUM_CPUS workers, shuffled order, repeats "
+	echo "20 times"
+	echo "./${DRIVER}.sh nr_threads=$NUM_CPUS test_repeat_count=20"
+	echo
+	echo "# Performance analysis"
+	echo "./${DRIVER}.sh performance"
+	echo
+	echo "# Stress testing"
+	echo "./${DRIVER}.sh stress"
+	echo
+	exit 0
+}
+
+function validate_passed_args()
+{
+	VALID_ARGS=`modinfo $DRIVER | awk '/parm:/ {print $2}' | sed 's/:.*//'`
+
+	#
+	# Something has been passed, check it.
+	#
+	for passed_arg in $@; do
+		key=${passed_arg//=*/}
+		val="${passed_arg:$((${#key}+1))}"
+		valid=0
+
+		for valid_arg in $VALID_ARGS; do
+			if [[ $key = $valid_arg ]] && [[ $val -gt 0 ]]; then
+				valid=1
+				break
+			fi
+		done
+
+		if [[ $valid -ne 1 ]]; then
+			echo "Error: key or value is not correct: ${key} $val"
+			exit $exitcode
+		fi
+	done
+}
+
+function run_manual_check()
+{
+	#
+	# Validate passed parameters. If there is wrong one,
+	# the script exists and does not execute further.
+	#
+	validate_passed_args $@
+
+	echo "Run the test with following parameters: $@"
+	modprobe $DRIVER $@ > /dev/null 2>&1
+	echo "Done."
+	echo "Check the kernel ring buffer to see the summary."
+}
+
+function run_test()
+{
+	if [ $# -eq 0 ]; then
+		usage
+	else
+		if [[ "$1" = "performance" ]]; then
+			run_performance_check
+		elif [[ "$1" = "stress" ]]; then
+			run_stability_check
+		elif [[ "$1" = "smoke" ]]; then
+			run_smoke_check
+		else
+			run_manual_check $@
+		fi
+	fi
+}
+
+check_test_requirements
+run_test $@
+
+exit 0
diff --git a/tools/testing/selftests/mm/thp_settings.c b/tools/testing/selftests/mm/thp_settings.c
new file mode 100644
index 000000000000..574bd0f8ae48
--- /dev/null
+++ b/tools/testing/selftests/mm/thp_settings.c
@@ -0,0 +1,401 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "thp_settings.h"
+
+#define THP_SYSFS "/sys/kernel/mm/transparent_hugepage/"
+#define MAX_SETTINGS_DEPTH 4
+static struct thp_settings settings_stack[MAX_SETTINGS_DEPTH];
+static int settings_index;
+static struct thp_settings saved_settings;
+static char dev_queue_read_ahead_path[PATH_MAX];
+
+static const char * const thp_enabled_strings[] = {
+	"never",
+	"always",
+	"inherit",
+	"madvise",
+	NULL
+};
+
+static const char * const thp_defrag_strings[] = {
+	"always",
+	"defer",
+	"defer+madvise",
+	"madvise",
+	"never",
+	NULL
+};
+
+static const char * const shmem_enabled_strings[] = {
+	"never",
+	"always",
+	"within_size",
+	"advise",
+	"inherit",
+	"deny",
+	"force",
+	NULL
+};
+
+int read_file(const char *path, char *buf, size_t buflen)
+{
+	int fd;
+	ssize_t numread;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1)
+		return 0;
+
+	numread = read(fd, buf, buflen - 1);
+	if (numread < 1) {
+		close(fd);
+		return 0;
+	}
+
+	buf[numread] = '\0';
+	close(fd);
+
+	return (unsigned int) numread;
+}
+
+int write_file(const char *path, const char *buf, size_t buflen)
+{
+	int fd;
+	ssize_t numwritten;
+
+	fd = open(path, O_WRONLY);
+	if (fd == -1) {
+		printf("open(%s)\n", path);
+		exit(EXIT_FAILURE);
+		return 0;
+	}
+
+	numwritten = write(fd, buf, buflen - 1);
+	close(fd);
+	if (numwritten < 1) {
+		printf("write(%s)\n", buf);
+		exit(EXIT_FAILURE);
+		return 0;
+	}
+
+	return (unsigned int) numwritten;
+}
+
+unsigned long read_num(const char *path)
+{
+	char buf[21];
+
+	if (read_file(path, buf, sizeof(buf)) < 0) {
+		perror("read_file()");
+		exit(EXIT_FAILURE);
+	}
+
+	return strtoul(buf, NULL, 10);
+}
+
+void write_num(const char *path, unsigned long num)
+{
+	char buf[21];
+
+	sprintf(buf, "%ld", num);
+	if (!write_file(path, buf, strlen(buf) + 1)) {
+		perror(path);
+		exit(EXIT_FAILURE);
+	}
+}
+
+int thp_read_string(const char *name, const char * const strings[])
+{
+	char path[PATH_MAX];
+	char buf[256];
+	char *c;
+	int ret;
+
+	ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name);
+	if (ret >= PATH_MAX) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+
+	if (!read_file(path, buf, sizeof(buf))) {
+		perror(path);
+		exit(EXIT_FAILURE);
+	}
+
+	c = strchr(buf, '[');
+	if (!c) {
+		printf("%s: Parse failure\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+
+	c++;
+	memmove(buf, c, sizeof(buf) - (c - buf));
+
+	c = strchr(buf, ']');
+	if (!c) {
+		printf("%s: Parse failure\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	*c = '\0';
+
+	ret = 0;
+	while (strings[ret]) {
+		if (!strcmp(strings[ret], buf))
+			return ret;
+		ret++;
+	}
+
+	printf("Failed to parse %s\n", name);
+	exit(EXIT_FAILURE);
+}
+
+void thp_write_string(const char *name, const char *val)
+{
+	char path[PATH_MAX];
+	int ret;
+
+	ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name);
+	if (ret >= PATH_MAX) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+
+	if (!write_file(path, val, strlen(val) + 1)) {
+		perror(path);
+		exit(EXIT_FAILURE);
+	}
+}
+
+unsigned long thp_read_num(const char *name)
+{
+	char path[PATH_MAX];
+	int ret;
+
+	ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name);
+	if (ret >= PATH_MAX) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	return read_num(path);
+}
+
+void thp_write_num(const char *name, unsigned long num)
+{
+	char path[PATH_MAX];
+	int ret;
+
+	ret = snprintf(path, PATH_MAX, THP_SYSFS "%s", name);
+	if (ret >= PATH_MAX) {
+		printf("%s: Pathname is too long\n", __func__);
+		exit(EXIT_FAILURE);
+	}
+	write_num(path, num);
+}
+
+void thp_read_settings(struct thp_settings *settings)
+{
+	unsigned long orders = thp_supported_orders();
+	unsigned long shmem_orders = thp_shmem_supported_orders();
+	char path[PATH_MAX];
+	int i;
+
+	*settings = (struct thp_settings) {
+		.thp_enabled = thp_read_string("enabled", thp_enabled_strings),
+		.thp_defrag = thp_read_string("defrag", thp_defrag_strings),
+		.shmem_enabled =
+			thp_read_string("shmem_enabled", shmem_enabled_strings),
+		.use_zero_page = thp_read_num("use_zero_page"),
+	};
+	settings->khugepaged = (struct khugepaged_settings) {
+		.defrag = thp_read_num("khugepaged/defrag"),
+		.alloc_sleep_millisecs =
+			thp_read_num("khugepaged/alloc_sleep_millisecs"),
+		.scan_sleep_millisecs =
+			thp_read_num("khugepaged/scan_sleep_millisecs"),
+		.max_ptes_none = thp_read_num("khugepaged/max_ptes_none"),
+		.max_ptes_swap = thp_read_num("khugepaged/max_ptes_swap"),
+		.max_ptes_shared = thp_read_num("khugepaged/max_ptes_shared"),
+		.pages_to_scan = thp_read_num("khugepaged/pages_to_scan"),
+	};
+	if (dev_queue_read_ahead_path[0])
+		settings->read_ahead_kb = read_num(dev_queue_read_ahead_path);
+
+	for (i = 0; i < NR_ORDERS; i++) {
+		if (!((1 << i) & orders)) {
+			settings->hugepages[i].enabled = THP_NEVER;
+			continue;
+		}
+		snprintf(path, PATH_MAX, "hugepages-%ukB/enabled",
+			(getpagesize() >> 10) << i);
+		settings->hugepages[i].enabled =
+			thp_read_string(path, thp_enabled_strings);
+	}
+
+	for (i = 0; i < NR_ORDERS; i++) {
+		if (!((1 << i) & shmem_orders)) {
+			settings->shmem_hugepages[i].enabled = SHMEM_NEVER;
+			continue;
+		}
+		snprintf(path, PATH_MAX, "hugepages-%ukB/shmem_enabled",
+			(getpagesize() >> 10) << i);
+		settings->shmem_hugepages[i].enabled =
+			thp_read_string(path, shmem_enabled_strings);
+	}
+}
+
+void thp_write_settings(struct thp_settings *settings)
+{
+	struct khugepaged_settings *khugepaged = &settings->khugepaged;
+	unsigned long orders = thp_supported_orders();
+	unsigned long shmem_orders = thp_shmem_supported_orders();
+	char path[PATH_MAX];
+	int enabled;
+	int i;
+
+	thp_write_string("enabled", thp_enabled_strings[settings->thp_enabled]);
+	thp_write_string("defrag", thp_defrag_strings[settings->thp_defrag]);
+	thp_write_string("shmem_enabled",
+			shmem_enabled_strings[settings->shmem_enabled]);
+	thp_write_num("use_zero_page", settings->use_zero_page);
+
+	thp_write_num("khugepaged/defrag", khugepaged->defrag);
+	thp_write_num("khugepaged/alloc_sleep_millisecs",
+			khugepaged->alloc_sleep_millisecs);
+	thp_write_num("khugepaged/scan_sleep_millisecs",
+			khugepaged->scan_sleep_millisecs);
+	thp_write_num("khugepaged/max_ptes_none", khugepaged->max_ptes_none);
+	thp_write_num("khugepaged/max_ptes_swap", khugepaged->max_ptes_swap);
+	thp_write_num("khugepaged/max_ptes_shared", khugepaged->max_ptes_shared);
+	thp_write_num("khugepaged/pages_to_scan", khugepaged->pages_to_scan);
+
+	if (dev_queue_read_ahead_path[0])
+		write_num(dev_queue_read_ahead_path, settings->read_ahead_kb);
+
+	for (i = 0; i < NR_ORDERS; i++) {
+		if (!((1 << i) & orders))
+			continue;
+		snprintf(path, PATH_MAX, "hugepages-%ukB/enabled",
+			(getpagesize() >> 10) << i);
+		enabled = settings->hugepages[i].enabled;
+		thp_write_string(path, thp_enabled_strings[enabled]);
+	}
+
+	for (i = 0; i < NR_ORDERS; i++) {
+		if (!((1 << i) & shmem_orders))
+			continue;
+		snprintf(path, PATH_MAX, "hugepages-%ukB/shmem_enabled",
+			(getpagesize() >> 10) << i);
+		enabled = settings->shmem_hugepages[i].enabled;
+		thp_write_string(path, shmem_enabled_strings[enabled]);
+	}
+}
+
+struct thp_settings *thp_current_settings(void)
+{
+	if (!settings_index) {
+		printf("Fail: No settings set");
+		exit(EXIT_FAILURE);
+	}
+	return settings_stack + settings_index - 1;
+}
+
+void thp_push_settings(struct thp_settings *settings)
+{
+	if (settings_index >= MAX_SETTINGS_DEPTH) {
+		printf("Fail: Settings stack exceeded");
+		exit(EXIT_FAILURE);
+	}
+	settings_stack[settings_index++] = *settings;
+	thp_write_settings(thp_current_settings());
+}
+
+void thp_pop_settings(void)
+{
+	if (settings_index <= 0) {
+		printf("Fail: Settings stack empty");
+		exit(EXIT_FAILURE);
+	}
+	--settings_index;
+	thp_write_settings(thp_current_settings());
+}
+
+void thp_restore_settings(void)
+{
+	thp_write_settings(&saved_settings);
+}
+
+void thp_save_settings(void)
+{
+	thp_read_settings(&saved_settings);
+}
+
+void thp_set_read_ahead_path(char *path)
+{
+	if (!path) {
+		dev_queue_read_ahead_path[0] = '\0';
+		return;
+	}
+
+	strncpy(dev_queue_read_ahead_path, path,
+		sizeof(dev_queue_read_ahead_path));
+	dev_queue_read_ahead_path[sizeof(dev_queue_read_ahead_path) - 1] = '\0';
+}
+
+static unsigned long __thp_supported_orders(bool is_shmem)
+{
+	unsigned long orders = 0;
+	char path[PATH_MAX];
+	char buf[256];
+	int ret, i;
+	char anon_dir[] = "enabled";
+	char shmem_dir[] = "shmem_enabled";
+
+	for (i = 0; i < NR_ORDERS; i++) {
+		ret = snprintf(path, PATH_MAX, THP_SYSFS "hugepages-%ukB/%s",
+			       (getpagesize() >> 10) << i, is_shmem ? shmem_dir : anon_dir);
+		if (ret >= PATH_MAX) {
+			printf("%s: Pathname is too long\n", __func__);
+			exit(EXIT_FAILURE);
+		}
+
+		ret = read_file(path, buf, sizeof(buf));
+		if (ret)
+			orders |= 1UL << i;
+	}
+
+	return orders;
+}
+
+unsigned long thp_supported_orders(void)
+{
+	return __thp_supported_orders(false);
+}
+
+unsigned long thp_shmem_supported_orders(void)
+{
+	return __thp_supported_orders(true);
+}
+
+bool thp_available(void)
+{
+	if (access(THP_SYSFS, F_OK) != 0)
+		return false;
+	return true;
+}
+
+bool thp_is_enabled(void)
+{
+	if (!thp_available())
+		return false;
+
+	int mode = thp_read_string("enabled", thp_enabled_strings);
+
+	/* THP is considered enabled if it's either "always" or "madvise" */
+	return mode == 1 || mode == 3;
+}
diff --git a/tools/testing/selftests/mm/thp_settings.h b/tools/testing/selftests/mm/thp_settings.h
new file mode 100644
index 000000000000..76eeb712e5f1
--- /dev/null
+++ b/tools/testing/selftests/mm/thp_settings.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __THP_SETTINGS_H__
+#define __THP_SETTINGS_H__
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+enum thp_enabled {
+	THP_NEVER,
+	THP_ALWAYS,
+	THP_INHERIT,
+	THP_MADVISE,
+};
+
+enum thp_defrag {
+	THP_DEFRAG_ALWAYS,
+	THP_DEFRAG_DEFER,
+	THP_DEFRAG_DEFER_MADVISE,
+	THP_DEFRAG_MADVISE,
+	THP_DEFRAG_NEVER,
+};
+
+enum shmem_enabled {
+	SHMEM_NEVER,
+	SHMEM_ALWAYS,
+	SHMEM_WITHIN_SIZE,
+	SHMEM_ADVISE,
+	SHMEM_INHERIT,
+	SHMEM_DENY,
+	SHMEM_FORCE,
+};
+
+#define NR_ORDERS 20
+
+struct hugepages_settings {
+	enum thp_enabled enabled;
+};
+
+struct khugepaged_settings {
+	bool defrag;
+	unsigned int alloc_sleep_millisecs;
+	unsigned int scan_sleep_millisecs;
+	unsigned int max_ptes_none;
+	unsigned int max_ptes_swap;
+	unsigned int max_ptes_shared;
+	unsigned long pages_to_scan;
+};
+
+struct shmem_hugepages_settings {
+	enum shmem_enabled enabled;
+};
+
+struct thp_settings {
+	enum thp_enabled thp_enabled;
+	enum thp_defrag thp_defrag;
+	enum shmem_enabled shmem_enabled;
+	bool use_zero_page;
+	struct khugepaged_settings khugepaged;
+	unsigned long read_ahead_kb;
+	struct hugepages_settings hugepages[NR_ORDERS];
+	struct shmem_hugepages_settings shmem_hugepages[NR_ORDERS];
+};
+
+int read_file(const char *path, char *buf, size_t buflen);
+int write_file(const char *path, const char *buf, size_t buflen);
+unsigned long read_num(const char *path);
+void write_num(const char *path, unsigned long num);
+
+int thp_read_string(const char *name, const char * const strings[]);
+void thp_write_string(const char *name, const char *val);
+unsigned long thp_read_num(const char *name);
+void thp_write_num(const char *name, unsigned long num);
+
+void thp_write_settings(struct thp_settings *settings);
+void thp_read_settings(struct thp_settings *settings);
+struct thp_settings *thp_current_settings(void);
+void thp_push_settings(struct thp_settings *settings);
+void thp_pop_settings(void);
+void thp_restore_settings(void);
+void thp_save_settings(void);
+
+void thp_set_read_ahead_path(char *path);
+unsigned long thp_supported_orders(void);
+unsigned long thp_shmem_supported_orders(void);
+
+bool thp_available(void);
+bool thp_is_enabled(void);
+
+#endif /* __THP_SETTINGS_H__ */
diff --git a/tools/testing/selftests/mm/thuge-gen.c b/tools/testing/selftests/mm/thuge-gen.c
new file mode 100644
index 000000000000..77813d34dcc2
--- /dev/null
+++ b/tools/testing/selftests/mm/thuge-gen.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test selecting other page sizes for mmap/shmget.
+
+   Before running this huge pages for each huge page size must have been
+   reserved.
+   For large pages beyond MAX_PAGE_ORDER (like 1GB on x86) boot options must
+   be used. 1GB wouldn't be tested if it isn't available.
+   Also shmmax must be increased.
+   And you need to run as root to work around some weird permissions in shm.
+   And nothing using huge pages should run in parallel.
+   When the program aborts you may need to clean up the shm segments with
+   ipcrm -m by hand, like this
+   sudo ipcs | awk '$1 == "0x00000000" {print $2}' | xargs -n1 sudo ipcrm -m
+   (warning this will remove all if someone else uses them) */
+
+#define _GNU_SOURCE
+#include <sys/mman.h>
+#include <linux/mman.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <glob.h>
+#include <assert.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <string.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+#if !defined(MAP_HUGETLB)
+#define MAP_HUGETLB	0x40000
+#endif
+
+#define SHM_HUGETLB     04000   /* segment will use huge TLB pages */
+#ifndef SHM_HUGE_SHIFT
+#define SHM_HUGE_SHIFT  26
+#endif
+#ifndef SHM_HUGE_MASK
+#define SHM_HUGE_MASK   0x3f
+#endif
+#ifndef SHM_HUGE_2MB
+#define SHM_HUGE_2MB    (21 << SHM_HUGE_SHIFT)
+#endif
+#ifndef SHM_HUGE_1GB
+#define SHM_HUGE_1GB    (30 << SHM_HUGE_SHIFT)
+#endif
+
+#define NUM_PAGESIZES   5
+#define NUM_PAGES 4
+
+unsigned long page_sizes[NUM_PAGESIZES];
+int num_page_sizes;
+
+int ilog2(unsigned long v)
+{
+	int l = 0;
+	while ((1UL << l) < v)
+		l++;
+	return l;
+}
+
+void show(unsigned long ps)
+{
+	char buf[100];
+
+	if (ps == getpagesize())
+		return;
+
+	ksft_print_msg("%luMB: ", ps >> 20);
+
+	fflush(stdout);
+	snprintf(buf, sizeof buf,
+		"cat /sys/kernel/mm/hugepages/hugepages-%lukB/free_hugepages",
+		ps >> 10);
+	system(buf);
+}
+
+unsigned long read_free(unsigned long ps)
+{
+	unsigned long val = 0;
+	char buf[100];
+
+	snprintf(buf, sizeof(buf),
+		 "/sys/kernel/mm/hugepages/hugepages-%lukB/free_hugepages",
+		 ps >> 10);
+	if (read_sysfs(buf, &val) && ps != getpagesize())
+		ksft_print_msg("missing %s\n", buf);
+
+	return val;
+}
+
+void test_mmap(unsigned long size, unsigned flags)
+{
+	char *map;
+	unsigned long before, after;
+
+	before = read_free(size);
+	map = mmap(NULL, size*NUM_PAGES, PROT_READ|PROT_WRITE,
+			MAP_PRIVATE|MAP_ANONYMOUS|MAP_HUGETLB|flags, -1, 0);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("mmap: %s\n", strerror(errno));
+
+	memset(map, 0xff, size*NUM_PAGES);
+	after = read_free(size);
+
+	show(size);
+	ksft_test_result(size == getpagesize() || (before - after) == NUM_PAGES,
+			 "%s mmap %lu %x\n", __func__, size, flags);
+
+	if (munmap(map, size * NUM_PAGES))
+		ksft_exit_fail_msg("%s: unmap %s\n", __func__, strerror(errno));
+}
+
+void test_shmget(unsigned long size, unsigned flags)
+{
+	int id;
+	unsigned long before, after;
+	struct shm_info i;
+	char *map;
+
+	before = read_free(size);
+	id = shmget(IPC_PRIVATE, size * NUM_PAGES, IPC_CREAT|0600|flags);
+	if (id < 0) {
+		if (errno == EPERM) {
+			ksft_test_result_skip("shmget requires root privileges: %s\n",
+					      strerror(errno));
+			return;
+		}
+		ksft_exit_fail_msg("shmget: %s\n", strerror(errno));
+	}
+
+	if (shmctl(id, SHM_INFO, (void *)&i) < 0)
+		ksft_exit_fail_msg("shmctl: %s\n", strerror(errno));
+
+	map = shmat(id, NULL, 0600);
+	if (map == MAP_FAILED)
+		ksft_exit_fail_msg("shmat: %s\n", strerror(errno));
+
+	shmctl(id, IPC_RMID, NULL);
+
+	memset(map, 0xff, size*NUM_PAGES);
+	after = read_free(size);
+
+	show(size);
+	ksft_test_result(size == getpagesize() || (before - after) == NUM_PAGES,
+			 "%s: mmap %lu %x\n", __func__, size, flags);
+	if (shmdt(map))
+		ksft_exit_fail_msg("%s: shmdt: %s\n", __func__, strerror(errno));
+}
+
+void find_pagesizes(void)
+{
+	unsigned long largest = getpagesize();
+	unsigned long shmmax_val = 0;
+	int i;
+	glob_t g;
+
+	glob("/sys/kernel/mm/hugepages/hugepages-*kB", 0, NULL, &g);
+	assert(g.gl_pathc <= NUM_PAGESIZES);
+	for (i = 0; (i < g.gl_pathc) && (num_page_sizes < NUM_PAGESIZES); i++) {
+		sscanf(g.gl_pathv[i], "/sys/kernel/mm/hugepages/hugepages-%lukB",
+				&page_sizes[num_page_sizes]);
+		page_sizes[num_page_sizes] <<= 10;
+		ksft_print_msg("Found %luMB\n", page_sizes[i] >> 20);
+
+		if (page_sizes[num_page_sizes] > largest)
+			largest = page_sizes[i];
+
+		if (read_free(page_sizes[num_page_sizes]) >= NUM_PAGES)
+			num_page_sizes++;
+		else
+			ksft_print_msg("SKIP for size %lu MB as not enough huge pages, need %u\n",
+				       page_sizes[num_page_sizes] >> 20, NUM_PAGES);
+	}
+	globfree(&g);
+
+	read_sysfs("/proc/sys/kernel/shmmax", &shmmax_val);
+	if (shmmax_val < NUM_PAGES * largest) {
+		ksft_print_msg("WARNING: shmmax is too small to run this test.\n");
+		ksft_print_msg("Please run the following command to increase shmmax:\n");
+		ksft_print_msg("echo %lu > /proc/sys/kernel/shmmax\n", largest * NUM_PAGES);
+		ksft_exit_skip("Test skipped due to insufficient shmmax value.\n");
+	}
+
+#if defined(__x86_64__)
+	if (largest != 1U<<30) {
+		ksft_exit_skip("No GB pages available on x86-64\n"
+				   "Please boot with hugepagesz=1G hugepages=%d\n", NUM_PAGES);
+	}
+#endif
+}
+
+int main(void)
+{
+	unsigned default_hps = default_huge_page_size();
+	int i;
+
+	ksft_print_header();
+
+	find_pagesizes();
+
+	if (!num_page_sizes)
+		ksft_finished();
+
+	ksft_set_plan(2 * num_page_sizes + 3);
+
+	for (i = 0; i < num_page_sizes; i++) {
+		unsigned long ps = page_sizes[i];
+		int arg = ilog2(ps) << MAP_HUGE_SHIFT;
+
+		ksft_print_msg("Testing %luMB mmap with shift %x\n", ps >> 20, arg);
+		test_mmap(ps, MAP_HUGETLB | arg);
+	}
+
+	ksft_print_msg("Testing default huge mmap\n");
+	test_mmap(default_hps, MAP_HUGETLB);
+
+	ksft_print_msg("Testing non-huge shmget\n");
+	test_shmget(getpagesize(), 0);
+
+	for (i = 0; i < num_page_sizes; i++) {
+		unsigned long ps = page_sizes[i];
+		int arg = ilog2(ps) << SHM_HUGE_SHIFT;
+		ksft_print_msg("Testing %luMB shmget with shift %x\n", ps >> 20, arg);
+		test_shmget(ps, SHM_HUGETLB | arg);
+	}
+
+	ksft_print_msg("default huge shmget\n");
+	test_shmget(default_hps, SHM_HUGETLB);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/transhuge-stress.c b/tools/testing/selftests/mm/transhuge-stress.c
new file mode 100644
index 000000000000..bcad47c09518
--- /dev/null
+++ b/tools/testing/selftests/mm/transhuge-stress.c
@@ -0,0 +1,138 @@
+/*
+ * Stress test for transparent huge pages, memory compaction and migration.
+ *
+ * Authors: Konstantin Khlebnikov <koct9i@gmail.com>
+ *
+ * This is free and unencumbered software released into the public domain.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <err.h>
+#include <time.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/mman.h>
+#include "vm_util.h"
+#include "kselftest.h"
+
+int backing_fd = -1;
+int mmap_flags = MAP_ANONYMOUS | MAP_NORESERVE | MAP_PRIVATE;
+#define PROT_RW (PROT_READ | PROT_WRITE)
+
+int main(int argc, char **argv)
+{
+	size_t ram, len;
+	void *ptr, *p;
+	struct timespec start, a, b;
+	int i = 0;
+	char *name = NULL;
+	double s;
+	uint8_t *map;
+	size_t map_len;
+	int pagemap_fd;
+	int duration = 0;
+
+	ksft_print_header();
+
+	ram = sysconf(_SC_PHYS_PAGES);
+	if (ram > SIZE_MAX / psize() / 4)
+		ram = SIZE_MAX / 4;
+	else
+		ram *= psize();
+	len = ram;
+
+	while (++i < argc) {
+		if (!strcmp(argv[i], "-h"))
+			ksft_exit_fail_msg("usage: %s [-f <filename>] [-d <duration>] [size in MiB]\n",
+					   argv[0]);
+		else if (!strcmp(argv[i], "-f"))
+			name = argv[++i];
+		else if (!strcmp(argv[i], "-d"))
+			duration = atoi(argv[++i]);
+		else
+			len = atoll(argv[i]) << 20;
+	}
+
+	ksft_set_plan(1);
+
+	if (name) {
+		backing_fd = open(name, O_RDWR);
+		if (backing_fd == -1)
+			ksft_exit_fail_msg("open %s\n", name);
+		mmap_flags = MAP_SHARED;
+	}
+
+	warnx("allocate %zd transhuge pages, using %zd MiB virtual memory"
+	      " and %zd MiB of ram", len >> HPAGE_SHIFT, len >> 20,
+	      ram >> (20 + HPAGE_SHIFT - pshift() - 1));
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_fail_msg("open pagemap\n");
+
+	len -= len % HPAGE_SIZE;
+	ptr = mmap(NULL, len + HPAGE_SIZE, PROT_RW, mmap_flags, backing_fd, 0);
+	if (ptr == MAP_FAILED)
+		ksft_exit_fail_msg("initial mmap");
+	ptr += HPAGE_SIZE - (uintptr_t)ptr % HPAGE_SIZE;
+
+	if (madvise(ptr, len, MADV_HUGEPAGE))
+		ksft_exit_fail_msg("MADV_HUGEPAGE");
+
+	map_len = ram >> (HPAGE_SHIFT - 1);
+	map = malloc(map_len);
+	if (!map)
+		ksft_exit_fail_msg("map malloc\n");
+
+	clock_gettime(CLOCK_MONOTONIC, &start);
+
+	while (1) {
+		int nr_succeed = 0, nr_failed = 0, nr_pages = 0;
+
+		memset(map, 0, map_len);
+
+		clock_gettime(CLOCK_MONOTONIC, &a);
+		for (p = ptr; p < ptr + len; p += HPAGE_SIZE) {
+			int64_t pfn;
+
+			pfn = allocate_transhuge(p, pagemap_fd);
+
+			if (pfn < 0) {
+				nr_failed++;
+			} else {
+				size_t idx = pfn >> (HPAGE_SHIFT - pshift());
+
+				nr_succeed++;
+				if (idx >= map_len) {
+					map = realloc(map, idx + 1);
+					if (!map)
+						ksft_exit_fail_msg("map realloc\n");
+					memset(map + map_len, 0, idx + 1 - map_len);
+					map_len = idx + 1;
+				}
+				if (!map[idx])
+					nr_pages++;
+				map[idx] = 1;
+			}
+
+			/* split transhuge page, keep last page */
+			if (madvise(p, HPAGE_SIZE - psize(), MADV_DONTNEED))
+				ksft_exit_fail_msg("MADV_DONTNEED");
+		}
+		clock_gettime(CLOCK_MONOTONIC, &b);
+		s = b.tv_sec - a.tv_sec + (b.tv_nsec - a.tv_nsec) / 1000000000.;
+
+		ksft_print_msg("%.3f s/loop, %.3f ms/page, %10.3f MiB/s\t"
+			       "%4d succeed, %4d failed, %4d different pages\n",
+			       s, s * 1000 / (len >> HPAGE_SHIFT), len / s / (1 << 20),
+			       nr_succeed, nr_failed, nr_pages);
+
+		if (duration > 0 && b.tv_sec - start.tv_sec >= duration) {
+			ksft_test_result_pass("Completed\n");
+			ksft_finished();
+		}
+	}
+}
diff --git a/tools/testing/selftests/mm/uffd-common.c b/tools/testing/selftests/mm/uffd-common.c
new file mode 100644
index 000000000000..edd02328f77b
--- /dev/null
+++ b/tools/testing/selftests/mm/uffd-common.c
@@ -0,0 +1,745 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Userfaultfd tests util functions
+ *
+ * Copyright (C) 2015-2023  Red Hat, Inc.
+ */
+
+#include "uffd-common.h"
+
+uffd_test_ops_t *uffd_test_ops;
+uffd_test_case_ops_t *uffd_test_case_ops;
+
+
+/* pthread_mutex_t starts at page offset 0 */
+pthread_mutex_t *area_mutex(char *area, unsigned long nr, uffd_global_test_opts_t *gopts)
+{
+	return (pthread_mutex_t *) (area + nr * gopts->page_size);
+}
+
+/*
+ * count is placed in the page after pthread_mutex_t naturally aligned
+ * to avoid non alignment faults on non-x86 archs.
+ */
+volatile unsigned long long *area_count(char *area, unsigned long nr,
+					uffd_global_test_opts_t *gopts)
+{
+	return (volatile unsigned long long *)
+	       ((unsigned long)(area + nr * gopts->page_size +
+	       sizeof(pthread_mutex_t) + sizeof(unsigned long long) - 1) &
+	       ~(unsigned long)(sizeof(unsigned long long) - 1));
+}
+
+static int uffd_mem_fd_create(off_t mem_size, bool hugetlb)
+{
+	unsigned int memfd_flags = 0;
+	int mem_fd;
+
+	if (hugetlb)
+		memfd_flags = MFD_HUGETLB;
+	mem_fd = memfd_create("uffd-test", memfd_flags);
+	if (mem_fd < 0)
+		err("memfd_create");
+	if (ftruncate(mem_fd, mem_size))
+		err("ftruncate");
+	if (fallocate(mem_fd,
+		      FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0,
+		      mem_size))
+		err("fallocate");
+
+	return mem_fd;
+}
+
+static void anon_release_pages(uffd_global_test_opts_t *gopts, char *rel_area)
+{
+	if (madvise(rel_area, gopts->nr_pages * gopts->page_size, MADV_DONTNEED))
+		err("madvise(MADV_DONTNEED) failed");
+}
+
+static int anon_allocate_area(uffd_global_test_opts_t *gopts, void **alloc_area, bool is_src)
+{
+	*alloc_area = mmap(NULL, gopts->nr_pages * gopts->page_size, PROT_READ | PROT_WRITE,
+			   MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	if (*alloc_area == MAP_FAILED) {
+		*alloc_area = NULL;
+		return -errno;
+	}
+	return 0;
+}
+
+static void noop_alias_mapping(uffd_global_test_opts_t *gopts, __u64 *start,
+			       size_t len, unsigned long offset)
+{
+}
+
+static void hugetlb_release_pages(uffd_global_test_opts_t *gopts, char *rel_area)
+{
+	if (!gopts->map_shared) {
+		if (madvise(rel_area, gopts->nr_pages * gopts->page_size, MADV_DONTNEED))
+			err("madvise(MADV_DONTNEED) failed");
+	} else {
+		if (madvise(rel_area, gopts->nr_pages * gopts->page_size, MADV_REMOVE))
+			err("madvise(MADV_REMOVE) failed");
+	}
+}
+
+static int hugetlb_allocate_area(uffd_global_test_opts_t *gopts, void **alloc_area, bool is_src)
+{
+	off_t size = gopts->nr_pages * gopts->page_size;
+	off_t offset = is_src ? 0 : size;
+	void *area_alias = NULL;
+	char **alloc_area_alias;
+	int mem_fd = uffd_mem_fd_create(size * 2, true);
+
+	*alloc_area = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			   (gopts->map_shared ? MAP_SHARED : MAP_PRIVATE) |
+			   (is_src ? 0 : MAP_NORESERVE),
+			   mem_fd, offset);
+	if (*alloc_area == MAP_FAILED) {
+		*alloc_area = NULL;
+		return -errno;
+	}
+
+	if (gopts->map_shared) {
+		area_alias = mmap(NULL, size, PROT_READ | PROT_WRITE,
+				  MAP_SHARED, mem_fd, offset);
+		if (area_alias == MAP_FAILED)
+			return -errno;
+	}
+
+	if (is_src) {
+		alloc_area_alias = &gopts->area_src_alias;
+	} else {
+		alloc_area_alias = &gopts->area_dst_alias;
+	}
+	if (area_alias)
+		*alloc_area_alias = area_alias;
+
+	close(mem_fd);
+	return 0;
+}
+
+static void hugetlb_alias_mapping(uffd_global_test_opts_t *gopts, __u64 *start,
+				  size_t len, unsigned long offset)
+{
+	if (!gopts->map_shared)
+		return;
+
+	*start = (unsigned long) gopts->area_dst_alias + offset;
+}
+
+static void shmem_release_pages(uffd_global_test_opts_t *gopts, char *rel_area)
+{
+	if (madvise(rel_area, gopts->nr_pages * gopts->page_size, MADV_REMOVE))
+		err("madvise(MADV_REMOVE) failed");
+}
+
+static int shmem_allocate_area(uffd_global_test_opts_t *gopts, void **alloc_area, bool is_src)
+{
+	void *area_alias = NULL;
+	size_t bytes = gopts->nr_pages * gopts->page_size, hpage_size = read_pmd_pagesize();
+	unsigned long offset = is_src ? 0 : bytes;
+	char *p = NULL, *p_alias = NULL;
+	int mem_fd = uffd_mem_fd_create(bytes * 2, false);
+	size_t region_size = bytes * 2 + hpage_size;
+
+	void *reserve = mmap(NULL, region_size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS,
+			-1, 0);
+	if (reserve == MAP_FAILED) {
+		close(mem_fd);
+		return -errno;
+	}
+
+	p = reserve;
+	p_alias = p;
+	p_alias += bytes;
+	p_alias += hpage_size;  /* Prevent src/dst VMA merge */
+
+	*alloc_area = mmap(p, bytes, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED,
+			   mem_fd, offset);
+	if (*alloc_area == MAP_FAILED) {
+		*alloc_area = NULL;
+		munmap(reserve, region_size);
+		close(mem_fd);
+		return -errno;
+	}
+	if (*alloc_area != p)
+		err("mmap of memfd failed at %p", p);
+
+	area_alias = mmap(p_alias, bytes, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_SHARED,
+			  mem_fd, offset);
+	if (area_alias == MAP_FAILED) {
+		*alloc_area = NULL;
+		munmap(reserve, region_size);
+		close(mem_fd);
+		return -errno;
+	}
+	if (area_alias != p_alias)
+		err("mmap of anonymous memory failed at %p", p_alias);
+
+	if (is_src)
+		gopts->area_src_alias = area_alias;
+	else
+		gopts->area_dst_alias = area_alias;
+
+	close(mem_fd);
+	return 0;
+}
+
+static void shmem_alias_mapping(uffd_global_test_opts_t *gopts, __u64 *start,
+				size_t len, unsigned long offset)
+{
+	*start = (unsigned long)gopts->area_dst_alias + offset;
+}
+
+static void shmem_check_pmd_mapping(uffd_global_test_opts_t *gopts, void *p, int expect_nr_hpages)
+{
+	if (!check_huge_shmem(gopts->area_dst_alias, expect_nr_hpages,
+			      read_pmd_pagesize()))
+		err("Did not find expected %d number of hugepages",
+		    expect_nr_hpages);
+}
+
+struct uffd_test_ops anon_uffd_test_ops = {
+	.allocate_area = anon_allocate_area,
+	.release_pages = anon_release_pages,
+	.alias_mapping = noop_alias_mapping,
+	.check_pmd_mapping = NULL,
+};
+
+struct uffd_test_ops shmem_uffd_test_ops = {
+	.allocate_area = shmem_allocate_area,
+	.release_pages = shmem_release_pages,
+	.alias_mapping = shmem_alias_mapping,
+	.check_pmd_mapping = shmem_check_pmd_mapping,
+};
+
+struct uffd_test_ops hugetlb_uffd_test_ops = {
+	.allocate_area = hugetlb_allocate_area,
+	.release_pages = hugetlb_release_pages,
+	.alias_mapping = hugetlb_alias_mapping,
+	.check_pmd_mapping = NULL,
+};
+
+void uffd_stats_report(struct uffd_args *args, int n_cpus)
+{
+	int i;
+	unsigned long long miss_total = 0, wp_total = 0, minor_total = 0;
+
+	for (i = 0; i < n_cpus; i++) {
+		miss_total += args[i].missing_faults;
+		wp_total += args[i].wp_faults;
+		minor_total += args[i].minor_faults;
+	}
+
+	printf("userfaults: ");
+	if (miss_total) {
+		printf("%llu missing (", miss_total);
+		for (i = 0; i < n_cpus; i++)
+			printf("%lu+", args[i].missing_faults);
+		printf("\b) ");
+	}
+	if (wp_total) {
+		printf("%llu wp (", wp_total);
+		for (i = 0; i < n_cpus; i++)
+			printf("%lu+", args[i].wp_faults);
+		printf("\b) ");
+	}
+	if (minor_total) {
+		printf("%llu minor (", minor_total);
+		for (i = 0; i < n_cpus; i++)
+			printf("%lu+", args[i].minor_faults);
+		printf("\b)");
+	}
+	printf("\n");
+}
+
+int userfaultfd_open(uffd_global_test_opts_t *gopts, uint64_t *features)
+{
+	struct uffdio_api uffdio_api;
+
+	gopts->uffd = uffd_open(UFFD_FLAGS);
+	if (gopts->uffd < 0)
+		return -1;
+	gopts->uffd_flags = fcntl(gopts->uffd, F_GETFD, NULL);
+
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = *features;
+	if (ioctl(gopts->uffd, UFFDIO_API, &uffdio_api))
+		/* Probably lack of CAP_PTRACE? */
+		return -1;
+	if (uffdio_api.api != UFFD_API)
+		err("UFFDIO_API error: %" PRIu64, (uint64_t)uffdio_api.api);
+
+	*features = uffdio_api.features;
+	return 0;
+}
+
+static inline void munmap_area(uffd_global_test_opts_t *gopts, void **area)
+{
+	if (*area)
+		if (munmap(*area, gopts->nr_pages * gopts->page_size))
+			err("munmap");
+
+	*area = NULL;
+}
+
+void uffd_test_ctx_clear(uffd_global_test_opts_t *gopts)
+{
+	size_t i;
+
+	if (gopts->pipefd) {
+		for (i = 0; i < gopts->nr_parallel * 2; ++i) {
+			if (close(gopts->pipefd[i]))
+				err("close pipefd");
+		}
+		free(gopts->pipefd);
+		gopts->pipefd = NULL;
+	}
+
+	if (gopts->count_verify) {
+		free(gopts->count_verify);
+		gopts->count_verify = NULL;
+	}
+
+	if (gopts->uffd != -1) {
+		if (close(gopts->uffd))
+			err("close uffd");
+		gopts->uffd = -1;
+	}
+
+	munmap_area(gopts, (void **)&gopts->area_src);
+	munmap_area(gopts, (void **)&gopts->area_src_alias);
+	munmap_area(gopts, (void **)&gopts->area_dst);
+	munmap_area(gopts, (void **)&gopts->area_dst_alias);
+	munmap_area(gopts, (void **)&gopts->area_remap);
+}
+
+int uffd_test_ctx_init(uffd_global_test_opts_t *gopts, uint64_t features, const char **errmsg)
+{
+	unsigned long nr, cpu;
+	int ret;
+
+	gopts->area_src_alias = NULL;
+	gopts->area_dst_alias = NULL;
+	gopts->area_remap = NULL;
+
+	if (uffd_test_case_ops && uffd_test_case_ops->pre_alloc) {
+		ret = uffd_test_case_ops->pre_alloc(gopts, errmsg);
+		if (ret)
+			return ret;
+	}
+
+	ret = uffd_test_ops->allocate_area(gopts, (void **) &gopts->area_src, true);
+	ret |= uffd_test_ops->allocate_area(gopts, (void **) &gopts->area_dst, false);
+	if (ret) {
+		if (errmsg)
+			*errmsg = "memory allocation failed";
+		return ret;
+	}
+
+	if (uffd_test_case_ops && uffd_test_case_ops->post_alloc) {
+		ret = uffd_test_case_ops->post_alloc(gopts, errmsg);
+		if (ret)
+			return ret;
+	}
+
+	ret = userfaultfd_open(gopts, &features);
+	if (ret) {
+		if (errmsg)
+			*errmsg = "possible lack of privilege";
+		return ret;
+	}
+
+	gopts->count_verify = malloc(gopts->nr_pages * sizeof(unsigned long long));
+	if (!gopts->count_verify)
+		err("count_verify");
+
+	for (nr = 0; nr < gopts->nr_pages; nr++) {
+		*area_mutex(gopts->area_src, nr, gopts) =
+			(pthread_mutex_t)PTHREAD_MUTEX_INITIALIZER;
+		gopts->count_verify[nr] = *area_count(gopts->area_src, nr, gopts) = 1;
+		/*
+		 * In the transition between 255 to 256, powerpc will
+		 * read out of order in my_bcmp and see both bytes as
+		 * zero, so leave a placeholder below always non-zero
+		 * after the count, to avoid my_bcmp to trigger false
+		 * positives.
+		 */
+		*(area_count(gopts->area_src, nr, gopts) + 1) = 1;
+	}
+
+	/*
+	 * After initialization of area_src, we must explicitly release pages
+	 * for area_dst to make sure it's fully empty.  Otherwise we could have
+	 * some area_dst pages be erroneously initialized with zero pages,
+	 * hence we could hit memory corruption later in the test.
+	 *
+	 * One example is when THP is globally enabled, above allocate_area()
+	 * calls could have the two areas merged into a single VMA (as they
+	 * will have the same VMA flags so they're mergeable).  When we
+	 * initialize the area_src above, it's possible that some part of
+	 * area_dst could have been faulted in via one huge THP that will be
+	 * shared between area_src and area_dst.  It could cause some of the
+	 * area_dst won't be trapped by missing userfaults.
+	 *
+	 * This release_pages() will guarantee even if that happened, we'll
+	 * proactively split the thp and drop any accidentally initialized
+	 * pages within area_dst.
+	 */
+	uffd_test_ops->release_pages(gopts, gopts->area_dst);
+
+	gopts->pipefd = malloc(sizeof(int) * gopts->nr_parallel * 2);
+	if (!gopts->pipefd)
+		err("pipefd");
+	for (cpu = 0; cpu < gopts->nr_parallel; cpu++)
+		if (pipe2(&gopts->pipefd[cpu * 2], O_CLOEXEC | O_NONBLOCK))
+			err("pipe");
+
+	return 0;
+}
+
+void wp_range(int ufd, __u64 start, __u64 len, bool wp)
+{
+	struct uffdio_writeprotect prms;
+
+	/* Write protection page faults */
+	prms.range.start = start;
+	prms.range.len = len;
+	/* Undo write-protect, do wakeup after that */
+	prms.mode = wp ? UFFDIO_WRITEPROTECT_MODE_WP : 0;
+
+	if (ioctl(ufd, UFFDIO_WRITEPROTECT, &prms))
+		err("clear WP failed: address=0x%"PRIx64, (uint64_t)start);
+}
+
+static void continue_range(int ufd, __u64 start, __u64 len, bool wp)
+{
+	struct uffdio_continue req;
+	int ret;
+
+	req.range.start = start;
+	req.range.len = len;
+	req.mode = 0;
+	if (wp)
+		req.mode |= UFFDIO_CONTINUE_MODE_WP;
+
+	if (ioctl(ufd, UFFDIO_CONTINUE, &req))
+		err("UFFDIO_CONTINUE failed for address 0x%" PRIx64,
+		    (uint64_t)start);
+
+	/*
+	 * Error handling within the kernel for continue is subtly different
+	 * from copy or zeropage, so it may be a source of bugs. Trigger an
+	 * error (-EEXIST) on purpose, to verify doing so doesn't cause a BUG.
+	 */
+	req.mapped = 0;
+	ret = ioctl(ufd, UFFDIO_CONTINUE, &req);
+	if (ret >= 0 || req.mapped != -EEXIST)
+		err("failed to exercise UFFDIO_CONTINUE error handling, ret=%d, mapped=%" PRId64,
+		    ret, (int64_t) req.mapped);
+}
+
+int uffd_read_msg(uffd_global_test_opts_t *gopts, struct uffd_msg *msg)
+{
+	int ret = read(gopts->uffd, msg, sizeof(*msg));
+
+	if (ret != sizeof(*msg)) {
+		if (ret < 0) {
+			if (errno == EAGAIN || errno == EINTR)
+				return 1;
+			err("blocking read error");
+		} else {
+			err("short read");
+		}
+	}
+
+	return 0;
+}
+
+void uffd_handle_page_fault(uffd_global_test_opts_t *gopts, struct uffd_msg *msg,
+			    struct uffd_args *args)
+{
+	unsigned long offset;
+
+	if (msg->event != UFFD_EVENT_PAGEFAULT)
+		err("unexpected msg event %u", msg->event);
+
+	if (msg->arg.pagefault.flags & UFFD_PAGEFAULT_FLAG_WP) {
+		/* Write protect page faults */
+		wp_range(gopts->uffd, msg->arg.pagefault.address, gopts->page_size, false);
+		args->wp_faults++;
+	} else if (msg->arg.pagefault.flags & UFFD_PAGEFAULT_FLAG_MINOR) {
+		uint8_t *area;
+		int b;
+
+		/*
+		 * Minor page faults
+		 *
+		 * To prove we can modify the original range for testing
+		 * purposes, we're going to bit flip this range before
+		 * continuing.
+		 *
+		 * Note that this requires all minor page fault tests operate on
+		 * area_dst (non-UFFD-registered) and area_dst_alias
+		 * (UFFD-registered).
+		 */
+
+		area = (uint8_t *)(gopts->area_dst +
+		       ((char *)msg->arg.pagefault.address -
+		       gopts->area_dst_alias));
+		for (b = 0; b < gopts->page_size; ++b)
+			area[b] = ~area[b];
+		continue_range(gopts->uffd, msg->arg.pagefault.address, gopts->page_size,
+			       args->apply_wp);
+		args->minor_faults++;
+	} else {
+		/*
+		 * Missing page faults.
+		 *
+		 * Here we force a write check for each of the missing mode
+		 * faults.  It's guaranteed because the only threads that
+		 * will trigger uffd faults are the locking threads, and
+		 * their first instruction to touch the missing page will
+		 * always be pthread_mutex_lock().
+		 *
+		 * Note that here we relied on an NPTL glibc impl detail to
+		 * always read the lock type at the entry of the lock op
+		 * (pthread_mutex_t.__data.__type, offset 0x10) before
+		 * doing any locking operations to guarantee that.  It's
+		 * actually not good to rely on this impl detail because
+		 * logically a pthread-compatible lib can implement the
+		 * locks without types and we can fail when linking with
+		 * them.  However since we used to find bugs with this
+		 * strict check we still keep it around.  Hopefully this
+		 * could be a good hint when it fails again.  If one day
+		 * it'll break on some other impl of glibc we'll revisit.
+		 */
+		if (msg->arg.pagefault.flags & UFFD_PAGEFAULT_FLAG_WRITE)
+			err("unexpected write fault");
+
+		offset = (char *)(unsigned long)msg->arg.pagefault.address - gopts->area_dst;
+		offset &= ~(gopts->page_size-1);
+
+		if (copy_page(gopts, offset, args->apply_wp))
+			args->missing_faults++;
+	}
+}
+
+void *uffd_poll_thread(void *arg)
+{
+	struct uffd_args *args = (struct uffd_args *)arg;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	unsigned long cpu = args->cpu;
+	struct pollfd pollfd[2];
+	struct uffd_msg msg;
+	struct uffdio_register uffd_reg;
+	int ret;
+	char tmp_chr;
+
+	if (!args->handle_fault)
+		args->handle_fault = uffd_handle_page_fault;
+
+	pollfd[0].fd = gopts->uffd;
+	pollfd[0].events = POLLIN;
+	pollfd[1].fd = gopts->pipefd[cpu*2];
+	pollfd[1].events = POLLIN;
+
+	gopts->ready_for_fork = true;
+
+	for (;;) {
+		ret = poll(pollfd, 2, -1);
+		if (ret <= 0) {
+			if (errno == EINTR || errno == EAGAIN)
+				continue;
+			err("poll error: %d", ret);
+		}
+		if (pollfd[1].revents) {
+			if (!(pollfd[1].revents & POLLIN))
+				err("pollfd[1].revents %d", pollfd[1].revents);
+			if (read(pollfd[1].fd, &tmp_chr, 1) != 1)
+				err("read pipefd error");
+			break;
+		}
+		if (!(pollfd[0].revents & POLLIN))
+			err("pollfd[0].revents %d", pollfd[0].revents);
+		if (uffd_read_msg(gopts, &msg))
+			continue;
+		switch (msg.event) {
+		default:
+			err("unexpected msg event %u\n", msg.event);
+			break;
+		case UFFD_EVENT_PAGEFAULT:
+			args->handle_fault(gopts, &msg, args);
+			break;
+		case UFFD_EVENT_FORK:
+			close(gopts->uffd);
+			gopts->uffd = msg.arg.fork.ufd;
+			pollfd[0].fd = gopts->uffd;
+			break;
+		case UFFD_EVENT_REMOVE:
+			uffd_reg.range.start = msg.arg.remove.start;
+			uffd_reg.range.len = msg.arg.remove.end -
+				msg.arg.remove.start;
+			if (ioctl(gopts->uffd, UFFDIO_UNREGISTER, &uffd_reg.range))
+				err("remove failure");
+			break;
+		case UFFD_EVENT_REMAP:
+			gopts->area_remap = gopts->area_dst;  /* save for later unmap */
+			gopts->area_dst = (char *)(unsigned long)msg.arg.remap.to;
+			break;
+		}
+	}
+
+	return NULL;
+}
+
+static void retry_copy_page(uffd_global_test_opts_t *gopts, struct uffdio_copy *uffdio_copy,
+			    unsigned long offset)
+{
+	uffd_test_ops->alias_mapping(gopts,
+				     &uffdio_copy->dst,
+				     uffdio_copy->len,
+				     offset);
+	if (ioctl(gopts->uffd, UFFDIO_COPY, uffdio_copy)) {
+		/* real retval in ufdio_copy.copy */
+		if (uffdio_copy->copy != -EEXIST)
+			err("UFFDIO_COPY retry error: %"PRId64,
+			(int64_t)uffdio_copy->copy);
+	} else {
+		err("UFFDIO_COPY retry unexpected: %"PRId64,
+		    (int64_t)uffdio_copy->copy);
+	}
+}
+
+static void wake_range(int ufd, unsigned long addr, unsigned long len)
+{
+	struct uffdio_range uffdio_wake;
+
+	uffdio_wake.start = addr;
+	uffdio_wake.len = len;
+
+	if (ioctl(ufd, UFFDIO_WAKE, &uffdio_wake))
+		fprintf(stderr, "error waking %lu\n",
+			addr), exit(1);
+}
+
+int __copy_page(uffd_global_test_opts_t *gopts, unsigned long offset, bool retry, bool wp)
+{
+	struct uffdio_copy uffdio_copy;
+
+	if (offset >= gopts->nr_pages * gopts->page_size)
+		err("unexpected offset %lu\n", offset);
+	uffdio_copy.dst = (unsigned long) gopts->area_dst + offset;
+	uffdio_copy.src = (unsigned long) gopts->area_src + offset;
+	uffdio_copy.len = gopts->page_size;
+	if (wp)
+		uffdio_copy.mode = UFFDIO_COPY_MODE_WP;
+	else
+		uffdio_copy.mode = 0;
+	uffdio_copy.copy = 0;
+	if (ioctl(gopts->uffd, UFFDIO_COPY, &uffdio_copy)) {
+		/* real retval in ufdio_copy.copy */
+		if (uffdio_copy.copy != -EEXIST)
+			err("UFFDIO_COPY error: %"PRId64,
+			    (int64_t)uffdio_copy.copy);
+		wake_range(gopts->uffd, uffdio_copy.dst, gopts->page_size);
+	} else if (uffdio_copy.copy != gopts->page_size) {
+		err("UFFDIO_COPY error: %"PRId64, (int64_t)uffdio_copy.copy);
+	} else {
+		if (gopts->test_uffdio_copy_eexist && retry) {
+			gopts->test_uffdio_copy_eexist = false;
+			retry_copy_page(gopts, &uffdio_copy, offset);
+		}
+		return 1;
+	}
+	return 0;
+}
+
+int copy_page(uffd_global_test_opts_t *gopts, unsigned long offset, bool wp)
+{
+	return __copy_page(gopts, offset, false, wp);
+}
+
+int move_page(uffd_global_test_opts_t *gopts, unsigned long offset, unsigned long len)
+{
+	struct uffdio_move uffdio_move;
+
+	if (offset + len > gopts->nr_pages * gopts->page_size)
+		err("unexpected offset %lu and length %lu\n", offset, len);
+	uffdio_move.dst = (unsigned long) gopts->area_dst + offset;
+	uffdio_move.src = (unsigned long) gopts->area_src + offset;
+	uffdio_move.len = len;
+	uffdio_move.mode = UFFDIO_MOVE_MODE_ALLOW_SRC_HOLES;
+	uffdio_move.move = 0;
+	if (ioctl(gopts->uffd, UFFDIO_MOVE, &uffdio_move)) {
+		/* real retval in uffdio_move.move */
+		if (uffdio_move.move != -EEXIST)
+			err("UFFDIO_MOVE error: %"PRId64,
+			    (int64_t)uffdio_move.move);
+		wake_range(gopts->uffd, uffdio_move.dst, len);
+	} else if (uffdio_move.move != len) {
+		err("UFFDIO_MOVE error: %"PRId64, (int64_t)uffdio_move.move);
+	} else
+		return 1;
+	return 0;
+}
+
+int uffd_open_dev(unsigned int flags)
+{
+	int fd, uffd;
+
+	fd = open("/dev/userfaultfd", O_RDWR | O_CLOEXEC);
+	if (fd < 0)
+		return fd;
+	uffd = ioctl(fd, USERFAULTFD_IOC_NEW, flags);
+	close(fd);
+
+	return uffd;
+}
+
+int uffd_open_sys(unsigned int flags)
+{
+#ifdef __NR_userfaultfd
+	return syscall(__NR_userfaultfd, flags);
+#else
+	return -1;
+#endif
+}
+
+int uffd_open(unsigned int flags)
+{
+	int uffd = uffd_open_sys(flags);
+
+	if (uffd < 0)
+		uffd = uffd_open_dev(flags);
+
+	return uffd;
+}
+
+int uffd_get_features(uint64_t *features)
+{
+	struct uffdio_api uffdio_api = { .api = UFFD_API, .features = 0 };
+	/*
+	 * This should by default work in most kernels; the feature list
+	 * will be the same no matter what we pass in here.
+	 */
+	int fd = uffd_open(UFFD_USER_MODE_ONLY);
+
+	if (fd < 0)
+		/* Maybe the kernel is older than user-only mode? */
+		fd = uffd_open(0);
+
+	if (fd < 0)
+		return fd;
+
+	if (ioctl(fd, UFFDIO_API, &uffdio_api)) {
+		close(fd);
+		return -errno;
+	}
+
+	*features = uffdio_api.features;
+	close(fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/mm/uffd-common.h b/tools/testing/selftests/mm/uffd-common.h
new file mode 100644
index 000000000000..844a85ab31eb
--- /dev/null
+++ b/tools/testing/selftests/mm/uffd-common.h
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Userfaultfd tests common header
+ *
+ * Copyright (C) 2015-2023  Red Hat, Inc.
+ */
+#ifndef __UFFD_COMMON_H__
+#define __UFFD_COMMON_H__
+
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <time.h>
+#include <signal.h>
+#include <poll.h>
+#include <string.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <pthread.h>
+#include <linux/userfaultfd.h>
+#include <setjmp.h>
+#include <stdbool.h>
+#include <assert.h>
+#include <inttypes.h>
+#include <stdint.h>
+#include <sys/random.h>
+#include <stdatomic.h>
+
+#include "kselftest.h"
+#include "vm_util.h"
+
+#define UFFD_FLAGS	(O_CLOEXEC | O_NONBLOCK | UFFD_USER_MODE_ONLY)
+
+#define _err(fmt, ...)						\
+	do {							\
+		int ret = errno;				\
+		fprintf(stderr, "ERROR: " fmt, ##__VA_ARGS__);	\
+		fprintf(stderr, " (errno=%d, @%s:%d)\n",	\
+			ret, __FILE__, __LINE__);		\
+	} while (0)
+
+#define errexit(exitcode, fmt, ...)		\
+	do {					\
+		_err(fmt, ##__VA_ARGS__);	\
+		exit(exitcode);			\
+	} while (0)
+
+#define err(fmt, ...) errexit(1, fmt, ##__VA_ARGS__)
+
+struct uffd_global_test_opts {
+	unsigned long nr_parallel, nr_pages, nr_pages_per_cpu, page_size;
+	char *area_src, *area_src_alias, *area_dst, *area_dst_alias, *area_remap;
+	int uffd, uffd_flags, finished, *pipefd, test_type;
+	bool map_shared;
+	bool test_uffdio_wp;
+	unsigned long long *count_verify;
+	volatile bool test_uffdio_copy_eexist;
+	atomic_bool ready_for_fork;
+};
+typedef struct uffd_global_test_opts uffd_global_test_opts_t;
+
+/* Userfaultfd test statistics */
+struct uffd_args {
+	int cpu;
+	/* Whether apply wr-protects when installing pages */
+	bool apply_wp;
+	unsigned long missing_faults;
+	unsigned long wp_faults;
+	unsigned long minor_faults;
+	struct uffd_global_test_opts *gopts;
+
+	/* A custom fault handler; defaults to uffd_handle_page_fault. */
+	void (*handle_fault)(struct uffd_global_test_opts *gopts,
+			     struct uffd_msg *msg,
+			     struct uffd_args *args);
+};
+
+struct uffd_test_ops {
+	int (*allocate_area)(uffd_global_test_opts_t *gopts, void **alloc_area, bool is_src);
+	void (*release_pages)(uffd_global_test_opts_t *gopts, char *rel_area);
+	void (*alias_mapping)(uffd_global_test_opts_t *gopts,
+			      __u64 *start,
+			      size_t len,
+			      unsigned long offset);
+	void (*check_pmd_mapping)(uffd_global_test_opts_t *gopts, void *p, int expect_nr_hpages);
+};
+typedef struct uffd_test_ops uffd_test_ops_t;
+
+struct uffd_test_case_ops {
+	int (*pre_alloc)(uffd_global_test_opts_t *gopts, const char **errmsg);
+	int (*post_alloc)(uffd_global_test_opts_t *gopts, const char **errmsg);
+};
+typedef struct uffd_test_case_ops uffd_test_case_ops_t;
+
+extern uffd_global_test_opts_t *uffd_gtest_opts;
+extern uffd_test_ops_t anon_uffd_test_ops;
+extern uffd_test_ops_t shmem_uffd_test_ops;
+extern uffd_test_ops_t hugetlb_uffd_test_ops;
+extern uffd_test_ops_t *uffd_test_ops;
+extern uffd_test_case_ops_t *uffd_test_case_ops;
+
+pthread_mutex_t *area_mutex(char *area, unsigned long nr, uffd_global_test_opts_t *gopts);
+volatile unsigned long long *area_count(char *area,
+					unsigned long nr,
+					uffd_global_test_opts_t *gopts);
+
+void uffd_stats_report(struct uffd_args *args, int n_cpus);
+int uffd_test_ctx_init(uffd_global_test_opts_t *gopts, uint64_t features, const char **errmsg);
+void uffd_test_ctx_clear(uffd_global_test_opts_t *gopts);
+int userfaultfd_open(uffd_global_test_opts_t *gopts, uint64_t *features);
+int uffd_read_msg(uffd_global_test_opts_t *gopts, struct uffd_msg *msg);
+void wp_range(int ufd, __u64 start, __u64 len, bool wp);
+void uffd_handle_page_fault(uffd_global_test_opts_t *gopts,
+			    struct uffd_msg *msg,
+			    struct uffd_args *args);
+int __copy_page(uffd_global_test_opts_t *gopts, unsigned long offset, bool retry, bool wp);
+int copy_page(uffd_global_test_opts_t *gopts, unsigned long offset, bool wp);
+int move_page(uffd_global_test_opts_t *gopts, unsigned long offset, unsigned long len);
+void *uffd_poll_thread(void *arg);
+
+int uffd_open_dev(unsigned int flags);
+int uffd_open_sys(unsigned int flags);
+int uffd_open(unsigned int flags);
+int uffd_get_features(uint64_t *features);
+
+#define TEST_ANON	1
+#define TEST_HUGETLB	2
+#define TEST_SHMEM	3
+
+#endif
diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c
new file mode 100644
index 000000000000..700fbaa18d44
--- /dev/null
+++ b/tools/testing/selftests/mm/uffd-stress.c
@@ -0,0 +1,521 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Stress userfaultfd syscall.
+ *
+ *  Copyright (C) 2015  Red Hat, Inc.
+ *
+ * This test allocates two virtual areas and bounces the physical
+ * memory across the two virtual areas (from area_src to area_dst)
+ * using userfaultfd.
+ *
+ * There are three threads running per CPU:
+ *
+ * 1) one per-CPU thread takes a per-page pthread_mutex in a random
+ *    page of the area_dst (while the physical page may still be in
+ *    area_src), and increments a per-page counter in the same page,
+ *    and checks its value against a verification region.
+ *
+ * 2) another per-CPU thread handles the userfaults generated by
+ *    thread 1 above. userfaultfd blocking reads or poll() modes are
+ *    exercised interleaved.
+ *
+ * 3) one last per-CPU thread transfers the memory in the background
+ *    at maximum bandwidth (if not already transferred by thread
+ *    2). Each cpu thread takes cares of transferring a portion of the
+ *    area.
+ *
+ * When all threads of type 3 completed the transfer, one bounce is
+ * complete. area_src and area_dst are then swapped. All threads are
+ * respawned and so the bounce is immediately restarted in the
+ * opposite direction.
+ *
+ * per-CPU threads 1 by triggering userfaults inside
+ * pthread_mutex_lock will also verify the atomicity of the memory
+ * transfer (UFFDIO_COPY).
+ */
+
+#include "uffd-common.h"
+
+uint64_t features;
+#ifdef __NR_userfaultfd
+
+#define BOUNCE_RANDOM		(1<<0)
+#define BOUNCE_RACINGFAULTS	(1<<1)
+#define BOUNCE_VERIFY		(1<<2)
+#define BOUNCE_POLL		(1<<3)
+static int bounces;
+/* defined globally for this particular test as the sigalrm handler
+ * depends on test_uffdio_*_eexist.
+ * XXX: define gopts in main() when we figure out a way to deal with
+ * test_uffdio_*_eexist.
+ */
+static uffd_global_test_opts_t *gopts;
+
+/* exercise the test_uffdio_*_eexist every ALARM_INTERVAL_SECS */
+#define ALARM_INTERVAL_SECS 10
+static char *zeropage;
+pthread_attr_t attr;
+
+#define swap(a, b) \
+	do { __auto_type __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
+
+const char *examples =
+	"# Run anonymous memory test on 100MiB region with 99999 bounces:\n"
+	"./uffd-stress anon 100 99999\n\n"
+	"# Run share memory test on 1GiB region with 99 bounces:\n"
+	"./uffd-stress shmem 1000 99\n\n"
+	"# Run hugetlb memory test on 256MiB region with 50 bounces:\n"
+	"./uffd-stress hugetlb 256 50\n\n"
+	"# Run the same hugetlb test but using private file:\n"
+	"./uffd-stress hugetlb-private 256 50\n\n"
+	"# 10MiB-~6GiB 999 bounces anonymous test, "
+	"continue forever unless an error triggers\n"
+	"while ./uffd-stress anon $[RANDOM % 6000 + 10] 999; do true; done\n\n";
+
+static void usage(void)
+{
+	fprintf(stderr, "\nUsage: ./uffd-stress <test type> <MiB> <bounces>\n\n");
+	fprintf(stderr, "Supported <test type>: anon, hugetlb, "
+		"hugetlb-private, shmem, shmem-private\n\n");
+	fprintf(stderr, "Examples:\n\n");
+	fprintf(stderr, "%s", examples);
+	exit(1);
+}
+
+static void uffd_stats_reset(uffd_global_test_opts_t *gopts, struct uffd_args *args,
+			     unsigned long n_cpus)
+{
+	int i;
+
+	for (i = 0; i < n_cpus; i++) {
+		args[i].cpu = i;
+		args[i].apply_wp = gopts->test_uffdio_wp;
+		args[i].missing_faults = 0;
+		args[i].wp_faults = 0;
+		args[i].minor_faults = 0;
+		args[i].gopts = gopts;
+	}
+}
+
+static void *locking_thread(void *arg)
+{
+	struct uffd_args *args = (struct uffd_args *) arg;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	unsigned long cpu = (unsigned long) args->cpu;
+	unsigned long page_nr;
+	unsigned long long count;
+
+	if (!(bounces & BOUNCE_RANDOM)) {
+		page_nr = -bounces;
+		if (!(bounces & BOUNCE_RACINGFAULTS))
+			page_nr += cpu * gopts->nr_pages_per_cpu;
+	}
+
+	while (!gopts->finished) {
+		if (bounces & BOUNCE_RANDOM) {
+			if (getrandom(&page_nr, sizeof(page_nr), 0) != sizeof(page_nr))
+				err("getrandom failed");
+		} else
+			page_nr += 1;
+		page_nr %= gopts->nr_pages;
+		pthread_mutex_lock(area_mutex(gopts->area_dst, page_nr, gopts));
+		count = *area_count(gopts->area_dst, page_nr, gopts);
+		if (count != gopts->count_verify[page_nr])
+			err("page_nr %lu memory corruption %llu %llu",
+			    page_nr, count, gopts->count_verify[page_nr]);
+		count++;
+		*area_count(gopts->area_dst, page_nr, gopts) = gopts->count_verify[page_nr] = count;
+		pthread_mutex_unlock(area_mutex(gopts->area_dst, page_nr, gopts));
+	}
+
+	return NULL;
+}
+
+static int copy_page_retry(uffd_global_test_opts_t *gopts, unsigned long offset)
+{
+	return __copy_page(gopts, offset, true, gopts->test_uffdio_wp);
+}
+
+pthread_mutex_t uffd_read_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static void *uffd_read_thread(void *arg)
+{
+	struct uffd_args *args = (struct uffd_args *)arg;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	struct uffd_msg msg;
+
+	pthread_mutex_unlock(&uffd_read_mutex);
+	/* from here cancellation is ok */
+
+	for (;;) {
+		if (uffd_read_msg(gopts, &msg))
+			continue;
+		uffd_handle_page_fault(gopts, &msg, args);
+	}
+
+	return NULL;
+}
+
+static void *background_thread(void *arg)
+{
+	struct uffd_args *args = (struct uffd_args *) arg;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	unsigned long cpu = (unsigned long) args->cpu;
+	unsigned long page_nr, start_nr, mid_nr, end_nr;
+
+	start_nr = cpu * gopts->nr_pages_per_cpu;
+	end_nr = (cpu+1) * gopts->nr_pages_per_cpu;
+	mid_nr = (start_nr + end_nr) / 2;
+
+	/* Copy the first half of the pages */
+	for (page_nr = start_nr; page_nr < mid_nr; page_nr++)
+		copy_page_retry(gopts, page_nr * gopts->page_size);
+
+	/*
+	 * If we need to test uffd-wp, set it up now.  Then we'll have
+	 * at least the first half of the pages mapped already which
+	 * can be write-protected for testing
+	 */
+	if (gopts->test_uffdio_wp)
+		wp_range(gopts->uffd, (unsigned long)gopts->area_dst + start_nr * gopts->page_size,
+			gopts->nr_pages_per_cpu * gopts->page_size, true);
+
+	/*
+	 * Continue the 2nd half of the page copying, handling write
+	 * protection faults if any
+	 */
+	for (page_nr = mid_nr; page_nr < end_nr; page_nr++)
+		copy_page_retry(gopts, page_nr * gopts->page_size);
+
+	return NULL;
+}
+
+static int stress(struct uffd_args *args)
+{
+	unsigned long cpu;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	pthread_t locking_threads[gopts->nr_parallel];
+	pthread_t uffd_threads[gopts->nr_parallel];
+	pthread_t background_threads[gopts->nr_parallel];
+
+	gopts->finished = 0;
+	for (cpu = 0; cpu < gopts->nr_parallel; cpu++) {
+		if (pthread_create(&locking_threads[cpu], &attr,
+				   locking_thread, (void *)&args[cpu]))
+			return 1;
+		if (bounces & BOUNCE_POLL) {
+			if (pthread_create(&uffd_threads[cpu],
+					   &attr,
+					   uffd_poll_thread,
+					   (void *) &args[cpu]))
+				err("uffd_poll_thread create");
+		} else {
+			if (pthread_create(&uffd_threads[cpu], &attr,
+					   uffd_read_thread,
+					   (void *)&args[cpu]))
+				return 1;
+			pthread_mutex_lock(&uffd_read_mutex);
+		}
+		if (pthread_create(&background_threads[cpu], &attr,
+				   background_thread, (void *)&args[cpu]))
+			return 1;
+	}
+	for (cpu = 0; cpu < gopts->nr_parallel; cpu++)
+		if (pthread_join(background_threads[cpu], NULL))
+			return 1;
+
+	/*
+	 * Be strict and immediately zap area_src, the whole area has
+	 * been transferred already by the background treads. The
+	 * area_src could then be faulted in a racy way by still
+	 * running uffdio_threads reading zeropages after we zapped
+	 * area_src (but they're guaranteed to get -EEXIST from
+	 * UFFDIO_COPY without writing zero pages into area_dst
+	 * because the background threads already completed).
+	 */
+	uffd_test_ops->release_pages(gopts, gopts->area_src);
+
+	gopts->finished = 1;
+	for (cpu = 0; cpu < gopts->nr_parallel; cpu++)
+		if (pthread_join(locking_threads[cpu], NULL))
+			return 1;
+
+	for (cpu = 0; cpu < gopts->nr_parallel; cpu++) {
+		char c = '\0';
+		if (bounces & BOUNCE_POLL) {
+			if (write(gopts->pipefd[cpu*2+1], &c, 1) != 1)
+				err("pipefd write error");
+			if (pthread_join(uffd_threads[cpu],
+					 (void *)&args[cpu]))
+				return 1;
+		} else {
+			if (pthread_cancel(uffd_threads[cpu]))
+				return 1;
+			if (pthread_join(uffd_threads[cpu], NULL))
+				return 1;
+		}
+	}
+
+	return 0;
+}
+
+static int userfaultfd_stress(uffd_global_test_opts_t *gopts)
+{
+	void *area;
+	unsigned long nr;
+	struct uffd_args args[gopts->nr_parallel];
+	uint64_t mem_size = gopts->nr_pages * gopts->page_size;
+	int flags = 0;
+
+	memset(args, 0, sizeof(struct uffd_args) * gopts->nr_parallel);
+
+	if (features & UFFD_FEATURE_WP_UNPOPULATED && gopts->test_type == TEST_ANON)
+		flags = UFFD_FEATURE_WP_UNPOPULATED;
+
+	if (uffd_test_ctx_init(gopts, flags, NULL))
+		err("context init failed");
+
+	if (posix_memalign(&area, gopts->page_size, gopts->page_size))
+		err("out of memory");
+	zeropage = area;
+	bzero(zeropage, gopts->page_size);
+
+	pthread_mutex_lock(&uffd_read_mutex);
+
+	pthread_attr_init(&attr);
+	pthread_attr_setstacksize(&attr, 16*1024*1024);
+
+	while (bounces--) {
+		printf("bounces: %d, mode:", bounces);
+		if (bounces & BOUNCE_RANDOM)
+			printf(" rnd");
+		if (bounces & BOUNCE_RACINGFAULTS)
+			printf(" racing");
+		if (bounces & BOUNCE_VERIFY)
+			printf(" ver");
+		if (bounces & BOUNCE_POLL)
+			printf(" poll");
+		else
+			printf(" read");
+		printf(", ");
+		fflush(stdout);
+
+		if (bounces & BOUNCE_POLL)
+			fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags | O_NONBLOCK);
+		else
+			fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags & ~O_NONBLOCK);
+
+		/* register */
+		if (uffd_register(gopts->uffd, gopts->area_dst, mem_size,
+				  true, gopts->test_uffdio_wp, false))
+			err("register failure");
+
+		if (gopts->area_dst_alias) {
+			if (uffd_register(gopts->uffd, gopts->area_dst_alias, mem_size,
+					  true, gopts->test_uffdio_wp, false))
+				err("register failure alias");
+		}
+
+		/*
+		 * The madvise done previously isn't enough: some
+		 * uffd_thread could have read userfaults (one of
+		 * those already resolved by the background thread)
+		 * and it may be in the process of calling
+		 * UFFDIO_COPY. UFFDIO_COPY will read the zapped
+		 * area_src and it would map a zero page in it (of
+		 * course such a UFFDIO_COPY is perfectly safe as it'd
+		 * return -EEXIST). The problem comes at the next
+		 * bounce though: that racing UFFDIO_COPY would
+		 * generate zeropages in the area_src, so invalidating
+		 * the previous MADV_DONTNEED. Without this additional
+		 * MADV_DONTNEED those zeropages leftovers in the
+		 * area_src would lead to -EEXIST failure during the
+		 * next bounce, effectively leaving a zeropage in the
+		 * area_dst.
+		 *
+		 * Try to comment this out madvise to see the memory
+		 * corruption being caught pretty quick.
+		 *
+		 * khugepaged is also inhibited to collapse THP after
+		 * MADV_DONTNEED only after the UFFDIO_REGISTER, so it's
+		 * required to MADV_DONTNEED here.
+		 */
+		uffd_test_ops->release_pages(gopts, gopts->area_dst);
+
+		uffd_stats_reset(gopts, args, gopts->nr_parallel);
+
+		/* bounce pass */
+		if (stress(args)) {
+			uffd_test_ctx_clear(gopts);
+			return 1;
+		}
+
+		/* Clear all the write protections if there is any */
+		if (gopts->test_uffdio_wp)
+			wp_range(gopts->uffd, (unsigned long)gopts->area_dst,
+				 gopts->nr_pages * gopts->page_size, false);
+
+		/* unregister */
+		if (uffd_unregister(gopts->uffd, gopts->area_dst, mem_size))
+			err("unregister failure");
+		if (gopts->area_dst_alias) {
+			if (uffd_unregister(gopts->uffd, gopts->area_dst_alias, mem_size))
+				err("unregister failure alias");
+		}
+
+		/* verification */
+		if (bounces & BOUNCE_VERIFY)
+			for (nr = 0; nr < gopts->nr_pages; nr++)
+				if (*area_count(gopts->area_dst, nr, gopts) !=
+						gopts->count_verify[nr])
+					err("error area_count %llu %llu %lu\n",
+					    *area_count(gopts->area_src, nr, gopts),
+					    gopts->count_verify[nr], nr);
+
+		/* prepare next bounce */
+		swap(gopts->area_src, gopts->area_dst);
+
+		swap(gopts->area_src_alias, gopts->area_dst_alias);
+
+		uffd_stats_report(args, gopts->nr_parallel);
+	}
+	uffd_test_ctx_clear(gopts);
+
+	return 0;
+}
+
+static void set_test_type(uffd_global_test_opts_t *gopts, const char *type)
+{
+	if (!strcmp(type, "anon")) {
+		gopts->test_type = TEST_ANON;
+		uffd_test_ops = &anon_uffd_test_ops;
+	} else if (!strcmp(type, "hugetlb")) {
+		gopts->test_type = TEST_HUGETLB;
+		uffd_test_ops = &hugetlb_uffd_test_ops;
+		gopts->map_shared = true;
+	} else if (!strcmp(type, "hugetlb-private")) {
+		gopts->test_type = TEST_HUGETLB;
+		uffd_test_ops = &hugetlb_uffd_test_ops;
+	} else if (!strcmp(type, "shmem")) {
+		gopts->map_shared = true;
+		gopts->test_type = TEST_SHMEM;
+		uffd_test_ops = &shmem_uffd_test_ops;
+	} else if (!strcmp(type, "shmem-private")) {
+		gopts->test_type = TEST_SHMEM;
+		uffd_test_ops = &shmem_uffd_test_ops;
+	}
+}
+
+static void parse_test_type_arg(uffd_global_test_opts_t *gopts, const char *raw_type)
+{
+	set_test_type(gopts, raw_type);
+
+	if (!gopts->test_type)
+		err("failed to parse test type argument: '%s'", raw_type);
+
+	if (gopts->test_type == TEST_HUGETLB)
+		gopts->page_size = default_huge_page_size();
+	else
+		gopts->page_size = sysconf(_SC_PAGE_SIZE);
+
+	if (!gopts->page_size)
+		err("Unable to determine page size");
+	if ((unsigned long) area_count(NULL, 0, gopts) + sizeof(unsigned long long) * 2
+	    > gopts->page_size)
+		err("Impossible to run this test");
+
+	/*
+	 * Whether we can test certain features depends not just on test type,
+	 * but also on whether or not this particular kernel supports the
+	 * feature.
+	 */
+
+	if (uffd_get_features(&features) && errno == ENOENT)
+		ksft_exit_skip("failed to get available features (%d)\n", errno);
+
+	gopts->test_uffdio_wp = gopts->test_uffdio_wp &&
+		(features & UFFD_FEATURE_PAGEFAULT_FLAG_WP);
+
+	if (gopts->test_type != TEST_ANON && !(features & UFFD_FEATURE_WP_HUGETLBFS_SHMEM))
+		gopts->test_uffdio_wp = false;
+
+	close(gopts->uffd);
+	gopts->uffd = -1;
+}
+
+static void sigalrm(int sig)
+{
+	if (sig != SIGALRM)
+		abort();
+	gopts->test_uffdio_copy_eexist = true;
+	alarm(ALARM_INTERVAL_SECS);
+}
+
+int main(int argc, char **argv)
+{
+	unsigned long nr_cpus;
+	size_t bytes;
+
+	gopts = (uffd_global_test_opts_t *) malloc(sizeof(uffd_global_test_opts_t));
+
+	if (argc < 4)
+		usage();
+
+	if (signal(SIGALRM, sigalrm) == SIG_ERR)
+		err("failed to arm SIGALRM");
+	alarm(ALARM_INTERVAL_SECS);
+
+	parse_test_type_arg(gopts, argv[1]);
+	bytes = atol(argv[2]) * 1024 * 1024;
+
+	nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
+	if (nr_cpus > 32) {
+		/* Don't let calculation below go to zero. */
+		ksft_print_msg("_SC_NPROCESSORS_ONLN (%lu) too large, capping nr_threads to 32\n",
+			       nr_cpus);
+		gopts->nr_parallel = 32;
+	} else {
+		gopts->nr_parallel = nr_cpus;
+	}
+
+	/*
+	 * src and dst each require bytes / page_size number of hugepages.
+	 * Ensure nr_parallel - 1 hugepages on top of that to account
+	 * for racy extra reservation of hugepages.
+	 */
+	if (gopts->test_type == TEST_HUGETLB &&
+	   get_free_hugepages() < 2 * (bytes / gopts->page_size) + gopts->nr_parallel - 1) {
+		printf("skip: Skipping userfaultfd... not enough hugepages\n");
+		return KSFT_SKIP;
+	}
+
+	gopts->nr_pages_per_cpu = bytes / gopts->page_size / gopts->nr_parallel;
+	if (!gopts->nr_pages_per_cpu) {
+		_err("pages_per_cpu = 0, cannot test (%lu / %lu / %lu)",
+			bytes, gopts->page_size, gopts->nr_parallel);
+		usage();
+	}
+
+	bounces = atoi(argv[3]);
+	if (bounces <= 0) {
+		_err("invalid bounces");
+		usage();
+	}
+	gopts->nr_pages = gopts->nr_pages_per_cpu * gopts->nr_parallel;
+
+	printf("nr_pages: %lu, nr_pages_per_cpu: %lu\n",
+	       gopts->nr_pages, gopts->nr_pages_per_cpu);
+	return userfaultfd_stress(gopts);
+}
+
+#else /* __NR_userfaultfd */
+
+#warning "missing __NR_userfaultfd definition"
+
+int main(void)
+{
+	printf("skip: Skipping userfaultfd test (missing __NR_userfaultfd)\n");
+	return KSFT_SKIP;
+}
+
+#endif /* __NR_userfaultfd */
diff --git a/tools/testing/selftests/mm/uffd-unit-tests.c b/tools/testing/selftests/mm/uffd-unit-tests.c
new file mode 100644
index 000000000000..f4807242c5b2
--- /dev/null
+++ b/tools/testing/selftests/mm/uffd-unit-tests.c
@@ -0,0 +1,1813 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Userfaultfd unit tests.
+ *
+ *  Copyright (C) 2015-2023  Red Hat, Inc.
+ */
+
+#include "uffd-common.h"
+
+#include "../../../../mm/gup_test.h"
+
+#ifdef __NR_userfaultfd
+
+/* The unit test doesn't need a large or random size, make it 32MB for now */
+#define  UFFD_TEST_MEM_SIZE               (32UL << 20)
+
+#define  MEM_ANON                         BIT_ULL(0)
+#define  MEM_SHMEM                        BIT_ULL(1)
+#define  MEM_SHMEM_PRIVATE                BIT_ULL(2)
+#define  MEM_HUGETLB                      BIT_ULL(3)
+#define  MEM_HUGETLB_PRIVATE              BIT_ULL(4)
+
+#define  MEM_ALL  (MEM_ANON | MEM_SHMEM | MEM_SHMEM_PRIVATE | \
+		   MEM_HUGETLB | MEM_HUGETLB_PRIVATE)
+
+#define ALIGN_UP(x, align_to) \
+	((__typeof__(x))((((unsigned long)(x)) + ((align_to)-1)) & ~((align_to)-1)))
+
+#define MAX(a, b) (((a) > (b)) ? (a) : (b))
+
+struct mem_type {
+	const char *name;
+	unsigned int mem_flag;
+	uffd_test_ops_t *mem_ops;
+	bool shared;
+};
+typedef struct mem_type mem_type_t;
+
+mem_type_t mem_types[] = {
+	{
+		.name = "anon",
+		.mem_flag = MEM_ANON,
+		.mem_ops = &anon_uffd_test_ops,
+		.shared = false,
+	},
+	{
+		.name = "shmem",
+		.mem_flag = MEM_SHMEM,
+		.mem_ops = &shmem_uffd_test_ops,
+		.shared = true,
+	},
+	{
+		.name = "shmem-private",
+		.mem_flag = MEM_SHMEM_PRIVATE,
+		.mem_ops = &shmem_uffd_test_ops,
+		.shared = false,
+	},
+	{
+		.name = "hugetlb",
+		.mem_flag = MEM_HUGETLB,
+		.mem_ops = &hugetlb_uffd_test_ops,
+		.shared = true,
+	},
+	{
+		.name = "hugetlb-private",
+		.mem_flag = MEM_HUGETLB_PRIVATE,
+		.mem_ops = &hugetlb_uffd_test_ops,
+		.shared = false,
+	},
+};
+
+/* Arguments to be passed over to each uffd unit test */
+struct uffd_test_args {
+	mem_type_t *mem_type;
+};
+typedef struct uffd_test_args uffd_test_args_t;
+
+/* Returns: UFFD_TEST_* */
+typedef void (*uffd_test_fn)(uffd_global_test_opts_t *, uffd_test_args_t *);
+
+typedef struct {
+	const char *name;
+	uffd_test_fn uffd_fn;
+	unsigned int mem_targets;
+	uint64_t uffd_feature_required;
+	uffd_test_case_ops_t *test_case_ops;
+} uffd_test_case_t;
+
+static void uffd_test_report(void)
+{
+	printf("Userfaults unit tests: pass=%u, skip=%u, fail=%u (total=%u)\n",
+	       ksft_get_pass_cnt(),
+	       ksft_get_xskip_cnt(),
+	       ksft_get_fail_cnt(),
+	       ksft_test_num());
+}
+
+static void uffd_test_pass(void)
+{
+	printf("done\n");
+	ksft_inc_pass_cnt();
+}
+
+#define  uffd_test_start(...)  do {		\
+		printf("Testing ");		\
+		printf(__VA_ARGS__);		\
+		printf("... ");			\
+		fflush(stdout);			\
+	} while (0)
+
+#define  uffd_test_fail(...)  do {		\
+		printf("failed [reason: ");	\
+		printf(__VA_ARGS__);		\
+		printf("]\n");			\
+		ksft_inc_fail_cnt();		\
+	} while (0)
+
+static void uffd_test_skip(const char *message)
+{
+	printf("skipped [reason: %s]\n", message);
+	ksft_inc_xskip_cnt();
+}
+
+/*
+ * Returns 1 if specific userfaultfd supported, 0 otherwise.  Note, we'll
+ * return 1 even if some test failed as long as uffd supported, because in
+ * that case we still want to proceed with the rest uffd unit tests.
+ */
+static int test_uffd_api(bool use_dev)
+{
+	struct uffdio_api uffdio_api;
+	int uffd;
+
+	uffd_test_start("UFFDIO_API (with %s)",
+			use_dev ? "/dev/userfaultfd" : "syscall");
+
+	if (use_dev)
+		uffd = uffd_open_dev(UFFD_FLAGS);
+	else
+		uffd = uffd_open_sys(UFFD_FLAGS);
+	if (uffd < 0) {
+		uffd_test_skip("cannot open userfaultfd handle");
+		return 0;
+	}
+
+	/* Test wrong UFFD_API */
+	uffdio_api.api = 0xab;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {
+		uffd_test_fail("UFFDIO_API should fail with wrong api but didn't");
+		goto out;
+	}
+
+	/* Test wrong feature bit */
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = BIT_ULL(63);
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {
+		uffd_test_fail("UFFDIO_API should fail with wrong feature but didn't");
+		goto out;
+	}
+
+	/* Test normal UFFDIO_API */
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api)) {
+		uffd_test_fail("UFFDIO_API should succeed but failed");
+		goto out;
+	}
+
+	/* Test double requests of UFFDIO_API with a random feature set */
+	uffdio_api.features = BIT_ULL(0);
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == 0) {
+		uffd_test_fail("UFFDIO_API should reject initialized uffd");
+		goto out;
+	}
+
+	uffd_test_pass();
+out:
+	close(uffd);
+	/* We have a valid uffd handle */
+	return 1;
+}
+
+
+static bool uffd_feature_supported(uffd_test_case_t *test)
+{
+	uint64_t features;
+
+	if (uffd_get_features(&features))
+		return false;
+
+	return (features & test->uffd_feature_required) ==
+	    test->uffd_feature_required;
+}
+
+static int pagemap_open(void)
+{
+	int fd = open("/proc/self/pagemap", O_RDONLY);
+
+	if (fd < 0)
+		err("open pagemap");
+
+	return fd;
+}
+
+/* This macro let __LINE__ works in err() */
+#define  pagemap_check_wp(value, wp) do {				\
+		if (!!(value & PM_UFFD_WP) != wp)			\
+			err("pagemap uffd-wp bit error: 0x%"PRIx64, value); \
+	} while (0)
+
+typedef struct {
+	uffd_global_test_opts_t *gopts;
+	int child_uffd;
+} fork_event_args;
+
+static void *fork_event_consumer(void *data)
+{
+	fork_event_args *args = data;
+	struct uffd_msg msg = { 0 };
+
+	args->gopts->ready_for_fork = true;
+
+	/* Read until a full msg received */
+	while (uffd_read_msg(args->gopts, &msg));
+
+	if (msg.event != UFFD_EVENT_FORK)
+		err("wrong message: %u\n", msg.event);
+
+	/* Just to be properly freed later */
+	args->child_uffd = msg.arg.fork.ufd;
+	return NULL;
+}
+
+typedef struct {
+	int gup_fd;
+	bool pinned;
+} pin_args;
+
+/*
+ * Returns 0 if succeed, <0 for errors.  pin_pages() needs to be paired
+ * with unpin_pages().  Currently it needs to be RO longterm pin to satisfy
+ * all needs of the test cases (e.g., trigger unshare, trigger fork() early
+ * CoW, etc.).
+ */
+static int pin_pages(pin_args *args, void *buffer, size_t size)
+{
+	struct pin_longterm_test test = {
+		.addr = (uintptr_t)buffer,
+		.size = size,
+		/* Read-only pins */
+		.flags = 0,
+	};
+
+	if (args->pinned)
+		err("already pinned");
+
+	args->gup_fd = open("/sys/kernel/debug/gup_test", O_RDWR);
+	if (args->gup_fd < 0)
+		return -errno;
+
+	if (ioctl(args->gup_fd, PIN_LONGTERM_TEST_START, &test)) {
+		/* Even if gup_test existed, can be an old gup_test / kernel */
+		close(args->gup_fd);
+		return -errno;
+	}
+	args->pinned = true;
+	return 0;
+}
+
+static void unpin_pages(pin_args *args)
+{
+	if (!args->pinned)
+		err("unpin without pin first");
+	if (ioctl(args->gup_fd, PIN_LONGTERM_TEST_STOP))
+		err("PIN_LONGTERM_TEST_STOP");
+	close(args->gup_fd);
+	args->pinned = false;
+}
+
+static int pagemap_test_fork(uffd_global_test_opts_t *gopts, bool with_event, bool test_pin)
+{
+	fork_event_args args = { .gopts = gopts, .child_uffd = -1 };
+	pthread_t thread;
+	pid_t child;
+	uint64_t value;
+	int fd, result;
+
+	/* Prepare a thread to resolve EVENT_FORK */
+	if (with_event) {
+		gopts->ready_for_fork = false;
+		if (pthread_create(&thread, NULL, fork_event_consumer, &args))
+			err("pthread_create()");
+		while (!gopts->ready_for_fork)
+			; /* Wait for the poll_thread to start executing before forking */
+	}
+
+	child = fork();
+	if (!child) {
+		/* Open the pagemap fd of the child itself */
+		pin_args args = {};
+
+		fd = pagemap_open();
+
+		if (test_pin && pin_pages(&args, gopts->area_dst, gopts->page_size))
+			/*
+			 * Normally when reach here we have pinned in
+			 * previous tests, so shouldn't fail anymore
+			 */
+			err("pin page failed in child");
+
+		value = pagemap_get_entry(fd, gopts->area_dst);
+		/*
+		 * After fork(), we should handle uffd-wp bit differently:
+		 *
+		 * (1) when with EVENT_FORK, it should persist
+		 * (2) when without EVENT_FORK, it should be dropped
+		 */
+		pagemap_check_wp(value, with_event);
+		if (test_pin)
+			unpin_pages(&args);
+		/* Succeed */
+		exit(0);
+	}
+	waitpid(child, &result, 0);
+
+	if (with_event) {
+		if (pthread_join(thread, NULL))
+			err("pthread_join()");
+		if (args.child_uffd < 0)
+			err("Didn't receive child uffd");
+		close(args.child_uffd);
+	}
+
+	return result;
+}
+
+static void uffd_wp_unpopulated_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uint64_t value;
+	int pagemap_fd;
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  false, true, false))
+		err("register failed");
+
+	pagemap_fd = pagemap_open();
+
+	/* Test applying pte marker to anon unpopulated */
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, true);
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, true);
+
+	/* Test unprotect on anon pte marker */
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, false);
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, false);
+
+	/* Test zap on anon marker */
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, true);
+	if (madvise(gopts->area_dst, gopts->page_size, MADV_DONTNEED))
+		err("madvise(MADV_DONTNEED) failed");
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, false);
+
+	/* Test fault in after marker removed */
+	*gopts->area_dst = 1;
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, false);
+	/* Drop it to make pte none again */
+	if (madvise(gopts->area_dst, gopts->page_size, MADV_DONTNEED))
+		err("madvise(MADV_DONTNEED) failed");
+
+	/* Test read-zero-page upon pte marker */
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, true);
+	*(volatile char *)gopts->area_dst;
+	/* Drop it to make pte none again */
+	if (madvise(gopts->area_dst, gopts->page_size, MADV_DONTNEED))
+		err("madvise(MADV_DONTNEED) failed");
+
+	uffd_test_pass();
+}
+
+static void uffd_wp_fork_test_common(uffd_global_test_opts_t *gopts, uffd_test_args_t *args,
+				     bool with_event)
+{
+	int pagemap_fd;
+	uint64_t value;
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  false, true, false))
+		err("register failed");
+
+	pagemap_fd = pagemap_open();
+
+	/* Touch the page */
+	*gopts->area_dst = 1;
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, true);
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, true);
+	if (pagemap_test_fork(gopts, with_event, false)) {
+		uffd_test_fail("Detected %s uffd-wp bit in child in present pte",
+			       with_event ? "missing" : "stall");
+		goto out;
+	}
+
+	/*
+	 * This is an attempt for zapping the pgtable so as to test the
+	 * markers.
+	 *
+	 * For private mappings, PAGEOUT will only work on exclusive ptes
+	 * (PM_MMAP_EXCLUSIVE) which we should satisfy.
+	 *
+	 * For shared, PAGEOUT may not work.  Use DONTNEED instead which
+	 * plays a similar role of zapping (rather than freeing the page)
+	 * to expose pte markers.
+	 */
+	if (args->mem_type->shared) {
+		if (madvise(gopts->area_dst, gopts->page_size, MADV_DONTNEED))
+			err("MADV_DONTNEED");
+	} else {
+		/*
+		 * NOTE: ignore retval because private-hugetlb doesn't yet
+		 * support swapping, so it could fail.
+		 */
+		madvise(gopts->area_dst, gopts->page_size, MADV_PAGEOUT);
+	}
+
+	/* Uffd-wp should persist even swapped out */
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, true);
+	if (pagemap_test_fork(gopts, with_event, false)) {
+		uffd_test_fail("Detected %s uffd-wp bit in child in zapped pte",
+			       with_event ? "missing" : "stall");
+		goto out;
+	}
+
+	/* Unprotect; this tests swap pte modifications */
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, false);
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, false);
+
+	/* Fault in the page from disk */
+	*gopts->area_dst = 2;
+	value = pagemap_get_entry(pagemap_fd, gopts->area_dst);
+	pagemap_check_wp(value, false);
+	uffd_test_pass();
+out:
+	if (uffd_unregister(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size))
+		err("unregister failed");
+	close(pagemap_fd);
+}
+
+static void uffd_wp_fork_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_wp_fork_test_common(gopts, args, false);
+}
+
+static void uffd_wp_fork_with_event_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_wp_fork_test_common(gopts, args, true);
+}
+
+static void uffd_wp_fork_pin_test_common(uffd_global_test_opts_t *gopts,
+					 uffd_test_args_t *args,
+					 bool with_event)
+{
+	int pagemap_fd;
+	pin_args pin_args = {};
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->page_size, false, true, false))
+		err("register failed");
+
+	pagemap_fd = pagemap_open();
+
+	/* Touch the page */
+	*gopts->area_dst = 1;
+	wp_range(gopts->uffd, (uint64_t)gopts->area_dst, gopts->page_size, true);
+
+	/*
+	 * 1. First pin, then fork().  This tests fork() special path when
+	 * doing early CoW if the page is private.
+	 */
+	if (pin_pages(&pin_args, gopts->area_dst, gopts->page_size)) {
+		uffd_test_skip("Possibly CONFIG_GUP_TEST missing "
+			       "or unprivileged");
+		close(pagemap_fd);
+		uffd_unregister(gopts->uffd, gopts->area_dst, gopts->page_size);
+		return;
+	}
+
+	if (pagemap_test_fork(gopts, with_event, false)) {
+		uffd_test_fail("Detected %s uffd-wp bit in early CoW of fork()",
+			       with_event ? "missing" : "stall");
+		unpin_pages(&pin_args);
+		goto out;
+	}
+
+	unpin_pages(&pin_args);
+
+	/*
+	 * 2. First fork(), then pin (in the child, where test_pin==true).
+	 * This tests COR, aka, page unsharing on private memories.
+	 */
+	if (pagemap_test_fork(gopts, with_event, true)) {
+		uffd_test_fail("Detected %s uffd-wp bit when RO pin",
+			       with_event ? "missing" : "stall");
+		goto out;
+	}
+	uffd_test_pass();
+out:
+	if (uffd_unregister(gopts->uffd, gopts->area_dst, gopts->page_size))
+		err("register failed");
+	close(pagemap_fd);
+}
+
+static void uffd_wp_fork_pin_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_wp_fork_pin_test_common(gopts, args, false);
+}
+
+static void uffd_wp_fork_pin_with_event_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_wp_fork_pin_test_common(gopts, args, true);
+}
+
+static void check_memory_contents(uffd_global_test_opts_t *gopts, char *p)
+{
+	unsigned long i, j;
+	uint8_t expected_byte;
+
+	for (i = 0; i < gopts->nr_pages; ++i) {
+		expected_byte = ~((uint8_t)(i % ((uint8_t)-1)));
+		for (j = 0; j < gopts->page_size; j++) {
+			uint8_t v = *(uint8_t *)(p + (i * gopts->page_size) + j);
+			if (v != expected_byte)
+				err("unexpected page contents");
+		}
+	}
+}
+
+static void uffd_minor_test_common(uffd_global_test_opts_t *gopts, bool test_collapse, bool test_wp)
+{
+	unsigned long p;
+	pthread_t uffd_mon;
+	char c = '\0';
+	struct uffd_args args = { 0 };
+	args.gopts = gopts;
+
+	/*
+	 * NOTE: MADV_COLLAPSE is not yet compatible with WP, so testing
+	 * both do not make much sense.
+	 */
+	assert(!(test_collapse && test_wp));
+
+	if (uffd_register(gopts->uffd, gopts->area_dst_alias, gopts->nr_pages * gopts->page_size,
+			  /* NOTE! MADV_COLLAPSE may not work with uffd-wp */
+			  false, test_wp, true))
+		err("register failure");
+
+	/*
+	 * After registering with UFFD, populate the non-UFFD-registered side of
+	 * the shared mapping. This should *not* trigger any UFFD minor faults.
+	 */
+	for (p = 0; p < gopts->nr_pages; ++p)
+		memset(gopts->area_dst + (p * gopts->page_size), p % ((uint8_t)-1),
+		       gopts->page_size);
+
+	args.apply_wp = test_wp;
+	if (pthread_create(&uffd_mon, NULL, uffd_poll_thread, &args))
+		err("uffd_poll_thread create");
+
+	/*
+	 * Read each of the pages back using the UFFD-registered mapping. We
+	 * expect that the first time we touch a page, it will result in a minor
+	 * fault. uffd_poll_thread will resolve the fault by bit-flipping the
+	 * page's contents, and then issuing a CONTINUE ioctl.
+	 */
+	check_memory_contents(gopts, gopts->area_dst_alias);
+
+	if (write(gopts->pipefd[1], &c, sizeof(c)) != sizeof(c))
+		err("pipe write");
+	if (pthread_join(uffd_mon, NULL))
+		err("join() failed");
+
+	if (test_collapse) {
+		if (madvise(gopts->area_dst_alias, gopts->nr_pages * gopts->page_size,
+			    MADV_COLLAPSE)) {
+			/* It's fine to fail for this one... */
+			uffd_test_skip("MADV_COLLAPSE failed");
+			return;
+		}
+
+		uffd_test_ops->check_pmd_mapping(gopts,
+						 gopts->area_dst,
+						 gopts->nr_pages * gopts->page_size /
+						 read_pmd_pagesize());
+		/*
+		 * This won't cause uffd-fault - it purely just makes sure there
+		 * was no corruption.
+		 */
+		check_memory_contents(gopts, gopts->area_dst_alias);
+	}
+
+	if (args.missing_faults != 0 || args.minor_faults != gopts->nr_pages)
+		uffd_test_fail("stats check error");
+	else
+		uffd_test_pass();
+}
+
+void uffd_minor_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_minor_test_common(gopts, false, false);
+}
+
+void uffd_minor_wp_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_minor_test_common(gopts, false, true);
+}
+
+void uffd_minor_collapse_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_minor_test_common(gopts, true, false);
+}
+
+static sigjmp_buf jbuf, *sigbuf;
+
+static void sighndl(int sig, siginfo_t *siginfo, void *ptr)
+{
+	if (sig == SIGBUS) {
+		if (sigbuf)
+			siglongjmp(*sigbuf, 1);
+		abort();
+	}
+}
+
+/*
+ * For non-cooperative userfaultfd test we fork() a process that will
+ * generate pagefaults, will mremap the area monitored by the
+ * userfaultfd and at last this process will release the monitored
+ * area.
+ * For the anonymous and shared memory the area is divided into two
+ * parts, the first part is accessed before mremap, and the second
+ * part is accessed after mremap. Since hugetlbfs does not support
+ * mremap, the entire monitored area is accessed in a single pass for
+ * HUGETLB_TEST.
+ * The release of the pages currently generates event for shmem and
+ * anonymous memory (UFFD_EVENT_REMOVE), hence it is not checked
+ * for hugetlb.
+ * For signal test(UFFD_FEATURE_SIGBUS), signal_test = 1, we register
+ * monitored area, generate pagefaults and test that signal is delivered.
+ * Use UFFDIO_COPY to allocate missing page and retry. For signal_test = 2
+ * test robustness use case - we release monitored area, fork a process
+ * that will generate pagefaults and verify signal is generated.
+ * This also tests UFFD_FEATURE_EVENT_FORK event along with the signal
+ * feature. Using monitor thread, verify no userfault events are generated.
+ */
+static int faulting_process(uffd_global_test_opts_t *gopts, int signal_test, bool wp)
+{
+	unsigned long nr, i;
+	unsigned long long count;
+	unsigned long split_nr_pages;
+	unsigned long lastnr;
+	struct sigaction act;
+	volatile unsigned long signalled = 0;
+
+	split_nr_pages = (gopts->nr_pages + 1) / 2;
+
+	if (signal_test) {
+		sigbuf = &jbuf;
+		memset(&act, 0, sizeof(act));
+		act.sa_sigaction = sighndl;
+		act.sa_flags = SA_SIGINFO;
+		if (sigaction(SIGBUS, &act, 0))
+			err("sigaction");
+		lastnr = (unsigned long)-1;
+	}
+
+	for (nr = 0; nr < split_nr_pages; nr++) {
+		volatile int steps = 1;
+		unsigned long offset = nr * gopts->page_size;
+
+		if (signal_test) {
+			if (sigsetjmp(*sigbuf, 1) != 0) {
+				if (steps == 1 && nr == lastnr)
+					err("Signal repeated");
+
+				lastnr = nr;
+				if (signal_test == 1) {
+					if (steps == 1) {
+						/* This is a MISSING request */
+						steps++;
+						if (copy_page(gopts, offset, wp))
+							signalled++;
+					} else {
+						/* This is a WP request */
+						assert(steps == 2);
+						wp_range(gopts->uffd,
+							 (__u64)gopts->area_dst +
+							 offset,
+							 gopts->page_size, false);
+					}
+				} else {
+					signalled++;
+					continue;
+				}
+			}
+		}
+
+		count = *area_count(gopts->area_dst, nr, gopts);
+		if (count != gopts->count_verify[nr])
+			err("nr %lu memory corruption %llu %llu\n",
+			    nr, count, gopts->count_verify[nr]);
+		/*
+		 * Trigger write protection if there is by writing
+		 * the same value back.
+		 */
+		*area_count(gopts->area_dst, nr, gopts) = count;
+	}
+
+	if (signal_test)
+		return signalled != split_nr_pages;
+
+	gopts->area_dst = mremap(gopts->area_dst, gopts->nr_pages * gopts->page_size,
+				 gopts->nr_pages * gopts->page_size,
+				 MREMAP_MAYMOVE | MREMAP_FIXED,
+				 gopts->area_src);
+	if (gopts->area_dst == MAP_FAILED)
+		err("mremap");
+	/* Reset area_src since we just clobbered it */
+	gopts->area_src = NULL;
+
+	for (; nr < gopts->nr_pages; nr++) {
+		count = *area_count(gopts->area_dst, nr, gopts);
+		if (count != gopts->count_verify[nr]) {
+			err("nr %lu memory corruption %llu %llu\n",
+			    nr, count, gopts->count_verify[nr]);
+		}
+		/*
+		 * Trigger write protection if there is by writing
+		 * the same value back.
+		 */
+		*area_count(gopts->area_dst, nr, gopts) = count;
+	}
+
+	uffd_test_ops->release_pages(gopts, gopts->area_dst);
+
+	for (nr = 0; nr < gopts->nr_pages; nr++)
+		for (i = 0; i < gopts->page_size; i++)
+			if (*(gopts->area_dst + nr * gopts->page_size + i) != 0)
+				err("page %lu offset %lu is not zero", nr, i);
+
+	return 0;
+}
+
+static void uffd_sigbus_test_common(uffd_global_test_opts_t *gopts, bool wp)
+{
+	unsigned long userfaults;
+	pthread_t uffd_mon;
+	pid_t pid;
+	int err;
+	char c = '\0';
+	struct uffd_args args = { 0 };
+	args.gopts = gopts;
+
+	gopts->ready_for_fork = false;
+
+	fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags | O_NONBLOCK);
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  true, wp, false))
+		err("register failure");
+
+	if (faulting_process(gopts, 1, wp))
+		err("faulting process failed");
+
+	uffd_test_ops->release_pages(gopts, gopts->area_dst);
+
+	args.apply_wp = wp;
+	if (pthread_create(&uffd_mon, NULL, uffd_poll_thread, &args))
+		err("uffd_poll_thread create");
+
+	while (!gopts->ready_for_fork)
+		; /* Wait for the poll_thread to start executing before forking */
+
+	pid = fork();
+	if (pid < 0)
+		err("fork");
+
+	if (!pid)
+		exit(faulting_process(gopts, 2, wp));
+
+	waitpid(pid, &err, 0);
+	if (err)
+		err("faulting process failed");
+	if (write(gopts->pipefd[1], &c, sizeof(c)) != sizeof(c))
+		err("pipe write");
+	if (pthread_join(uffd_mon, (void **)&userfaults))
+		err("pthread_join()");
+
+	if (userfaults)
+		uffd_test_fail("Signal test failed, userfaults: %ld", userfaults);
+	else
+		uffd_test_pass();
+}
+
+static void uffd_sigbus_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_sigbus_test_common(gopts, false);
+}
+
+static void uffd_sigbus_wp_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_sigbus_test_common(gopts, true);
+}
+
+static void uffd_events_test_common(uffd_global_test_opts_t *gopts, bool wp)
+{
+	pthread_t uffd_mon;
+	pid_t pid;
+	int err;
+	char c = '\0';
+	struct uffd_args args = { 0 };
+	args.gopts = gopts;
+
+	gopts->ready_for_fork = false;
+
+	fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags | O_NONBLOCK);
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  true, wp, false))
+		err("register failure");
+
+	args.apply_wp = wp;
+	if (pthread_create(&uffd_mon, NULL, uffd_poll_thread, &args))
+		err("uffd_poll_thread create");
+
+	while (!gopts->ready_for_fork)
+		; /* Wait for the poll_thread to start executing before forking */
+
+	pid = fork();
+	if (pid < 0)
+		err("fork");
+
+	if (!pid)
+		exit(faulting_process(gopts, 0, wp));
+
+	waitpid(pid, &err, 0);
+	if (err)
+		err("faulting process failed");
+	if (write(gopts->pipefd[1], &c, sizeof(c)) != sizeof(c))
+		err("pipe write");
+	if (pthread_join(uffd_mon, NULL))
+		err("pthread_join()");
+
+	if (args.missing_faults != gopts->nr_pages)
+		uffd_test_fail("Fault counts wrong");
+	else
+		uffd_test_pass();
+}
+
+static void uffd_events_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_events_test_common(gopts, false);
+}
+
+static void uffd_events_wp_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	uffd_events_test_common(gopts, true);
+}
+
+static void retry_uffdio_zeropage(uffd_global_test_opts_t *gopts,
+				  struct uffdio_zeropage *uffdio_zeropage)
+{
+	uffd_test_ops->alias_mapping(gopts, &uffdio_zeropage->range.start,
+				     uffdio_zeropage->range.len,
+				     0);
+	if (ioctl(gopts->uffd, UFFDIO_ZEROPAGE, uffdio_zeropage)) {
+		if (uffdio_zeropage->zeropage != -EEXIST)
+			err("UFFDIO_ZEROPAGE error: %"PRId64,
+			    (int64_t)uffdio_zeropage->zeropage);
+	} else {
+		err("UFFDIO_ZEROPAGE error: %"PRId64,
+		    (int64_t)uffdio_zeropage->zeropage);
+	}
+}
+
+static bool do_uffdio_zeropage(uffd_global_test_opts_t *gopts, bool has_zeropage)
+{
+	struct uffdio_zeropage uffdio_zeropage = { 0 };
+	int ret;
+	__s64 res;
+
+	uffdio_zeropage.range.start = (unsigned long) gopts->area_dst;
+	uffdio_zeropage.range.len = gopts->page_size;
+	uffdio_zeropage.mode = 0;
+	ret = ioctl(gopts->uffd, UFFDIO_ZEROPAGE, &uffdio_zeropage);
+	res = uffdio_zeropage.zeropage;
+	if (ret) {
+		/* real retval in ufdio_zeropage.zeropage */
+		if (has_zeropage)
+			err("UFFDIO_ZEROPAGE error: %"PRId64, (int64_t)res);
+		else if (res != -EINVAL)
+			err("UFFDIO_ZEROPAGE not -EINVAL");
+	} else if (has_zeropage) {
+		if (res != gopts->page_size)
+			err("UFFDIO_ZEROPAGE unexpected size");
+		else
+			retry_uffdio_zeropage(gopts, &uffdio_zeropage);
+		return true;
+	} else
+		err("UFFDIO_ZEROPAGE succeeded");
+
+	return false;
+}
+
+/*
+ * Registers a range with MISSING mode only for zeropage test.  Return true
+ * if UFFDIO_ZEROPAGE supported, false otherwise. Can't use uffd_register()
+ * because we want to detect .ioctls along the way.
+ */
+static bool
+uffd_register_detect_zeropage(int uffd, void *addr, uint64_t len)
+{
+	uint64_t ioctls = 0;
+
+	if (uffd_register_with_ioctls(uffd, addr, len, true,
+				      false, false, &ioctls))
+		err("zeropage register fail");
+
+	return ioctls & (1 << _UFFDIO_ZEROPAGE);
+}
+
+/* exercise UFFDIO_ZEROPAGE */
+static void uffd_zeropage_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	bool has_zeropage;
+	int i;
+
+	has_zeropage = uffd_register_detect_zeropage(gopts->uffd,
+						     gopts->area_dst,
+						     gopts->page_size);
+	if (gopts->area_dst_alias)
+		/* Ignore the retval; we already have it */
+		uffd_register_detect_zeropage(gopts->uffd, gopts->area_dst_alias, gopts->page_size);
+
+	if (do_uffdio_zeropage(gopts, has_zeropage))
+		for (i = 0; i < gopts->page_size; i++)
+			if (gopts->area_dst[i] != 0)
+				err("data non-zero at offset %d\n", i);
+
+	if (uffd_unregister(gopts->uffd, gopts->area_dst, gopts->page_size))
+		err("unregister");
+
+	if (gopts->area_dst_alias && uffd_unregister(gopts->uffd,
+						     gopts->area_dst_alias,
+						     gopts->page_size))
+		err("unregister");
+
+	uffd_test_pass();
+}
+
+static void uffd_register_poison(int uffd, void *addr, uint64_t len)
+{
+	uint64_t ioctls = 0;
+	uint64_t expected = (1 << _UFFDIO_COPY) | (1 << _UFFDIO_POISON);
+
+	if (uffd_register_with_ioctls(uffd, addr, len, true,
+				      false, false, &ioctls))
+		err("poison register fail");
+
+	if ((ioctls & expected) != expected)
+		err("registered area doesn't support COPY and POISON ioctls");
+}
+
+static void do_uffdio_poison(uffd_global_test_opts_t *gopts, unsigned long offset)
+{
+	struct uffdio_poison uffdio_poison = { 0 };
+	int ret;
+	__s64 res;
+
+	uffdio_poison.range.start = (unsigned long) gopts->area_dst + offset;
+	uffdio_poison.range.len = gopts->page_size;
+	uffdio_poison.mode = 0;
+	ret = ioctl(gopts->uffd, UFFDIO_POISON, &uffdio_poison);
+	res = uffdio_poison.updated;
+
+	if (ret)
+		err("UFFDIO_POISON error: %"PRId64, (int64_t)res);
+	else if (res != gopts->page_size)
+		err("UFFDIO_POISON unexpected size: %"PRId64, (int64_t)res);
+}
+
+static void uffd_poison_handle_fault(uffd_global_test_opts_t *gopts,
+				     struct uffd_msg *msg,
+				     struct uffd_args *args)
+{
+	unsigned long offset;
+
+	if (msg->event != UFFD_EVENT_PAGEFAULT)
+		err("unexpected msg event %u", msg->event);
+
+	if (msg->arg.pagefault.flags &
+	    (UFFD_PAGEFAULT_FLAG_WP | UFFD_PAGEFAULT_FLAG_MINOR))
+		err("unexpected fault type %llu", msg->arg.pagefault.flags);
+
+	offset = (char *)(unsigned long)msg->arg.pagefault.address - gopts->area_dst;
+	offset &= ~(gopts->page_size-1);
+
+	/* Odd pages -> copy zeroed page; even pages -> poison. */
+	if (offset & gopts->page_size)
+		copy_page(gopts, offset, false);
+	else
+		do_uffdio_poison(gopts, offset);
+}
+
+/* Make sure to cover odd/even, and minimum duplications */
+#define  UFFD_POISON_TEST_NPAGES  4
+
+static void uffd_poison_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *targs)
+{
+	pthread_t uffd_mon;
+	char c;
+	struct uffd_args args = { 0 };
+	struct sigaction act = { 0 };
+	unsigned long nr_sigbus = 0;
+	unsigned long nr, poison_pages = UFFD_POISON_TEST_NPAGES;
+
+	if (gopts->nr_pages < poison_pages) {
+		uffd_test_skip("Too less pages for POISON test");
+		return;
+	}
+
+	args.gopts = gopts;
+
+	fcntl(gopts->uffd, F_SETFL, gopts->uffd_flags | O_NONBLOCK);
+
+	uffd_register_poison(gopts->uffd, gopts->area_dst, poison_pages * gopts->page_size);
+	memset(gopts->area_src, 0, poison_pages * gopts->page_size);
+
+	args.handle_fault = uffd_poison_handle_fault;
+	if (pthread_create(&uffd_mon, NULL, uffd_poll_thread, &args))
+		err("uffd_poll_thread create");
+
+	sigbuf = &jbuf;
+	act.sa_sigaction = sighndl;
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGBUS, &act, 0))
+		err("sigaction");
+
+	for (nr = 0; nr < poison_pages; ++nr) {
+		unsigned long offset = nr * gopts->page_size;
+		const char *bytes = (const char *) gopts->area_dst + offset;
+		const char *i;
+
+		if (sigsetjmp(*sigbuf, 1)) {
+			/*
+			 * Access below triggered a SIGBUS, which was caught by
+			 * sighndl, which then jumped here. Count this SIGBUS,
+			 * and move on to next page.
+			 */
+			++nr_sigbus;
+			continue;
+		}
+
+		for (i = bytes; i < bytes + gopts->page_size; ++i) {
+			if (*i)
+				err("nonzero byte in area_dst (%p) at %p: %u",
+				    gopts->area_dst, i, *i);
+		}
+	}
+
+	if (write(gopts->pipefd[1], &c, sizeof(c)) != sizeof(c))
+		err("pipe write");
+	if (pthread_join(uffd_mon, NULL))
+		err("pthread_join()");
+
+	if (nr_sigbus != poison_pages / 2)
+		err("expected to receive %lu SIGBUS, actually received %lu",
+		    poison_pages / 2, nr_sigbus);
+
+	uffd_test_pass();
+}
+
+static void
+uffd_move_handle_fault_common(uffd_global_test_opts_t *gopts,
+			      struct uffd_msg *msg,
+			      struct uffd_args *args,
+			      unsigned long len)
+{
+	unsigned long offset;
+
+	if (msg->event != UFFD_EVENT_PAGEFAULT)
+		err("unexpected msg event %u", msg->event);
+
+	if (msg->arg.pagefault.flags &
+	    (UFFD_PAGEFAULT_FLAG_WP | UFFD_PAGEFAULT_FLAG_MINOR | UFFD_PAGEFAULT_FLAG_WRITE))
+		err("unexpected fault type %llu", msg->arg.pagefault.flags);
+
+	offset = (char *)(unsigned long)msg->arg.pagefault.address - gopts->area_dst;
+	offset &= ~(len-1);
+
+	if (move_page(gopts, offset, len))
+		args->missing_faults++;
+}
+
+static void uffd_move_handle_fault(uffd_global_test_opts_t *gopts, struct uffd_msg *msg,
+				   struct uffd_args *args)
+{
+	uffd_move_handle_fault_common(gopts, msg, args, gopts->page_size);
+}
+
+static void uffd_move_pmd_handle_fault(uffd_global_test_opts_t *gopts, struct uffd_msg *msg,
+				       struct uffd_args *args)
+{
+	uffd_move_handle_fault_common(gopts, msg, args, read_pmd_pagesize());
+}
+
+static void
+uffd_move_test_common(uffd_global_test_opts_t *gopts,
+		      uffd_test_args_t *targs,
+		      unsigned long chunk_size,
+		      void (*handle_fault)(struct uffd_global_test_opts *gopts,
+		      struct uffd_msg *msg, struct uffd_args *args)
+)
+{
+	unsigned long nr;
+	pthread_t uffd_mon;
+	char c = '\0';
+	unsigned long long count;
+	struct uffd_args args = { 0 };
+	char *orig_area_src = NULL, *orig_area_dst = NULL;
+	unsigned long step_size, step_count;
+	unsigned long src_offs = 0;
+	unsigned long dst_offs = 0;
+
+	args.gopts = gopts;
+
+	/* Prevent source pages from being mapped more than once */
+	if (madvise(gopts->area_src, gopts->nr_pages * gopts->page_size, MADV_DONTFORK))
+		err("madvise(MADV_DONTFORK) failure");
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  true, false, false))
+		err("register failure");
+
+	args.handle_fault = handle_fault;
+	if (pthread_create(&uffd_mon, NULL, uffd_poll_thread, &args))
+		err("uffd_poll_thread create");
+
+	step_size = chunk_size / gopts->page_size;
+	step_count = gopts->nr_pages / step_size;
+
+	if (chunk_size > gopts->page_size) {
+		char *aligned_src = ALIGN_UP(gopts->area_src, chunk_size);
+		char *aligned_dst = ALIGN_UP(gopts->area_dst, chunk_size);
+
+		if (aligned_src != gopts->area_src || aligned_dst != gopts->area_dst) {
+			src_offs = (aligned_src - gopts->area_src) / gopts->page_size;
+			dst_offs = (aligned_dst - gopts->area_dst) / gopts->page_size;
+			step_count--;
+		}
+		orig_area_src = gopts->area_src;
+		orig_area_dst = gopts->area_dst;
+		gopts->area_src = aligned_src;
+		gopts->area_dst = aligned_dst;
+	}
+
+	/*
+	 * Read each of the pages back using the UFFD-registered mapping. We
+	 * expect that the first time we touch a page, it will result in a missing
+	 * fault. uffd_poll_thread will resolve the fault by moving source
+	 * page to destination.
+	 */
+	for (nr = 0; nr < step_count * step_size; nr += step_size) {
+		unsigned long i;
+
+		/* Check area_src content */
+		for (i = 0; i < step_size; i++) {
+			count = *area_count(gopts->area_src, nr + i, gopts);
+			if (count != gopts->count_verify[src_offs + nr + i])
+				err("nr %lu source memory invalid %llu %llu\n",
+				    nr + i, count, gopts->count_verify[src_offs + nr + i]);
+		}
+
+		/* Faulting into area_dst should move the page or the huge page */
+		for (i = 0; i < step_size; i++) {
+			count = *area_count(gopts->area_dst, nr + i, gopts);
+			if (count != gopts->count_verify[dst_offs + nr + i])
+				err("nr %lu memory corruption %llu %llu\n",
+				    nr, count, gopts->count_verify[dst_offs + nr + i]);
+		}
+
+		/* Re-check area_src content which should be empty */
+		for (i = 0; i < step_size; i++) {
+			count = *area_count(gopts->area_src, nr + i, gopts);
+			if (count != 0)
+				err("nr %lu move failed %llu %llu\n",
+				    nr, count, gopts->count_verify[src_offs + nr + i]);
+		}
+	}
+	if (chunk_size > gopts->page_size) {
+		gopts->area_src = orig_area_src;
+		gopts->area_dst = orig_area_dst;
+	}
+
+	if (write(gopts->pipefd[1], &c, sizeof(c)) != sizeof(c))
+		err("pipe write");
+	if (pthread_join(uffd_mon, NULL))
+		err("join() failed");
+
+	if (args.missing_faults != step_count || args.minor_faults != 0)
+		uffd_test_fail("stats check error");
+	else
+		uffd_test_pass();
+}
+
+static void uffd_move_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *targs)
+{
+	uffd_move_test_common(gopts, targs, gopts->page_size, uffd_move_handle_fault);
+}
+
+static void uffd_move_pmd_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *targs)
+{
+	if (madvise(gopts->area_dst, gopts->nr_pages * gopts->page_size, MADV_HUGEPAGE))
+		err("madvise(MADV_HUGEPAGE) failure");
+	uffd_move_test_common(gopts, targs, read_pmd_pagesize(),
+			      uffd_move_pmd_handle_fault);
+}
+
+static void uffd_move_pmd_split_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *targs)
+{
+	if (madvise(gopts->area_dst, gopts->nr_pages * gopts->page_size, MADV_NOHUGEPAGE))
+		err("madvise(MADV_NOHUGEPAGE) failure");
+	uffd_move_test_common(gopts, targs, read_pmd_pagesize(),
+			      uffd_move_pmd_handle_fault);
+}
+
+static bool
+uffdio_verify_results(const char *name, int ret, int error, long result)
+{
+	/*
+	 * Should always return -1 with errno=EAGAIN, with corresponding
+	 * result field updated in ioctl() args to be -EAGAIN too
+	 * (e.g. copy.copy field for UFFDIO_COPY).
+	 */
+	if (ret != -1) {
+		uffd_test_fail("%s should have returned -1", name);
+		return false;
+	}
+
+	if (error != EAGAIN) {
+		uffd_test_fail("%s should have errno==EAGAIN", name);
+		return false;
+	}
+
+	if (result != -EAGAIN) {
+		uffd_test_fail("%s should have been updated for -EAGAIN",
+			       name);
+		return false;
+	}
+
+	return true;
+}
+
+/*
+ * This defines a function to test one ioctl.  Note that here "field" can
+ * be 1 or anything not -EAGAIN.  With that initial value set, we can
+ * verify later that it should be updated by kernel (when -EAGAIN
+ * returned), by checking whether it is also updated to -EAGAIN.
+ */
+#define DEFINE_MMAP_CHANGING_TEST(name, ioctl_name, field)		\
+	static bool uffdio_mmap_changing_test_##name(int fd)		\
+	{								\
+		int ret;						\
+		struct uffdio_##name args = {				\
+			.field = 1,					\
+		};							\
+		ret = ioctl(fd, ioctl_name, &args);			\
+		return uffdio_verify_results(#ioctl_name, ret, errno, args.field); \
+	}
+
+DEFINE_MMAP_CHANGING_TEST(zeropage, UFFDIO_ZEROPAGE, zeropage)
+DEFINE_MMAP_CHANGING_TEST(copy, UFFDIO_COPY, copy)
+DEFINE_MMAP_CHANGING_TEST(move, UFFDIO_MOVE, move)
+DEFINE_MMAP_CHANGING_TEST(poison, UFFDIO_POISON, updated)
+DEFINE_MMAP_CHANGING_TEST(continue, UFFDIO_CONTINUE, mapped)
+
+typedef enum {
+	/* We actually do not care about any state except UNINTERRUPTIBLE.. */
+	THR_STATE_UNKNOWN = 0,
+	THR_STATE_UNINTERRUPTIBLE,
+} thread_state;
+
+typedef struct {
+	uffd_global_test_opts_t *gopts;
+	volatile pid_t *pid;
+} mmap_changing_thread_args;
+
+static void sleep_short(void)
+{
+	usleep(1000);
+}
+
+static thread_state thread_state_get(pid_t tid)
+{
+	const char *header = "State:\t";
+	char tmp[256], *p, c;
+	FILE *fp;
+
+	snprintf(tmp, sizeof(tmp), "/proc/%d/status", tid);
+	fp = fopen(tmp, "r");
+
+	if (!fp)
+		return THR_STATE_UNKNOWN;
+
+	while (fgets(tmp, sizeof(tmp), fp)) {
+		p = strstr(tmp, header);
+		if (p) {
+			/* For example, "State:\tD (disk sleep)" */
+			c = *(p + sizeof(header) - 1);
+			return c == 'D' ?
+			    THR_STATE_UNINTERRUPTIBLE : THR_STATE_UNKNOWN;
+		}
+	}
+
+	return THR_STATE_UNKNOWN;
+}
+
+static void thread_state_until(pid_t tid, thread_state state)
+{
+	thread_state s;
+
+	do {
+		s = thread_state_get(tid);
+		sleep_short();
+	} while (s != state);
+}
+
+static void *uffd_mmap_changing_thread(void *opaque)
+{
+	mmap_changing_thread_args *args = opaque;
+	uffd_global_test_opts_t *gopts = args->gopts;
+	volatile pid_t *pid = args->pid;
+	int ret;
+
+	/* Unfortunately, it's only fetch-able from the thread itself.. */
+	assert(*pid == 0);
+	*pid = syscall(SYS_gettid);
+
+	/* Inject an event, this will hang solid until the event read */
+	ret = madvise(gopts->area_dst, gopts->page_size, MADV_REMOVE);
+	if (ret)
+		err("madvise(MADV_REMOVE) failed");
+
+	return NULL;
+}
+
+static void uffd_consume_message(uffd_global_test_opts_t *gopts)
+{
+	struct uffd_msg msg = { 0 };
+
+	while (uffd_read_msg(gopts, &msg));
+}
+
+static void uffd_mmap_changing_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *targs)
+{
+	/*
+	 * This stores the real PID (which can be different from how tid is
+	 * defined..) for the child thread, 0 means not initialized.
+	 */
+	pid_t pid = 0;
+	pthread_t tid;
+	int ret;
+	mmap_changing_thread_args args = { gopts, &pid };
+
+	if (uffd_register(gopts->uffd, gopts->area_dst, gopts->nr_pages * gopts->page_size,
+			  true, false, false))
+		err("uffd_register() failed");
+
+	/* Create a thread to generate the racy event */
+	ret = pthread_create(&tid, NULL, uffd_mmap_changing_thread, &args);
+	if (ret)
+		err("pthread_create() failed");
+
+	/*
+	 * Wait until the thread setup the pid.  Use volatile to make sure
+	 * it reads from RAM not regs.
+	 */
+	while (!(volatile pid_t)pid)
+		sleep_short();
+
+	/* Wait until the thread hangs at REMOVE event */
+	thread_state_until(pid, THR_STATE_UNINTERRUPTIBLE);
+
+	if (!uffdio_mmap_changing_test_copy(gopts->uffd))
+		return;
+
+	if (!uffdio_mmap_changing_test_zeropage(gopts->uffd))
+		return;
+
+	if (!uffdio_mmap_changing_test_move(gopts->uffd))
+		return;
+
+	if (!uffdio_mmap_changing_test_poison(gopts->uffd))
+		return;
+
+	if (!uffdio_mmap_changing_test_continue(gopts->uffd))
+		return;
+
+	/*
+	 * All succeeded above!  Recycle everything.  Start by reading the
+	 * event so as to kick the thread roll again..
+	 */
+	uffd_consume_message(gopts);
+
+	ret = pthread_join(tid, NULL);
+	assert(ret == 0);
+
+	uffd_test_pass();
+}
+
+static int prevent_hugepages(uffd_global_test_opts_t *gopts, const char **errmsg)
+{
+	/* This should be done before source area is populated */
+	if (madvise(gopts->area_src, gopts->nr_pages * gopts->page_size, MADV_NOHUGEPAGE)) {
+		/* Ignore only if CONFIG_TRANSPARENT_HUGEPAGE=n */
+		if (errno != EINVAL) {
+			if (errmsg)
+				*errmsg = "madvise(MADV_NOHUGEPAGE) failed";
+			return -errno;
+		}
+	}
+	return 0;
+}
+
+static int request_hugepages(uffd_global_test_opts_t *gopts, const char **errmsg)
+{
+	/* This should be done before source area is populated */
+	if (madvise(gopts->area_src, gopts->nr_pages * gopts->page_size, MADV_HUGEPAGE)) {
+		if (errmsg) {
+			*errmsg = (errno == EINVAL) ?
+				"CONFIG_TRANSPARENT_HUGEPAGE is not set" :
+				"madvise(MADV_HUGEPAGE) failed";
+		}
+		return -errno;
+	}
+	return 0;
+}
+
+struct uffd_test_case_ops uffd_move_test_case_ops = {
+	.post_alloc = prevent_hugepages,
+};
+
+struct uffd_test_case_ops uffd_move_test_pmd_case_ops = {
+	.post_alloc = request_hugepages,
+};
+
+/*
+ * Test the returned uffdio_register.ioctls with different register modes.
+ * Note that _UFFDIO_ZEROPAGE is tested separately in the zeropage test.
+ */
+static void
+do_register_ioctls_test(uffd_global_test_opts_t *gopts,
+			uffd_test_args_t *args,
+			bool miss,
+			bool wp,
+			bool minor)
+{
+	uint64_t ioctls = 0, expected = BIT_ULL(_UFFDIO_WAKE);
+	mem_type_t *mem_type = args->mem_type;
+	int ret;
+
+	ret = uffd_register_with_ioctls(gopts->uffd, gopts->area_dst, gopts->page_size,
+					miss, wp, minor, &ioctls);
+
+	/*
+	 * Handle special cases of UFFDIO_REGISTER here where it should
+	 * just fail with -EINVAL first..
+	 *
+	 * Case 1: register MINOR on anon
+	 * Case 2: register with no mode selected
+	 */
+	if ((minor && (mem_type->mem_flag == MEM_ANON)) ||
+	    (!miss && !wp && !minor)) {
+		if (ret != -EINVAL)
+			err("register (miss=%d, wp=%d, minor=%d) failed "
+			    "with wrong errno=%d", miss, wp, minor, ret);
+		return;
+	}
+
+	/* UFFDIO_REGISTER should succeed, then check ioctls returned */
+	if (miss)
+		expected |= BIT_ULL(_UFFDIO_COPY);
+	if (wp)
+		expected |= BIT_ULL(_UFFDIO_WRITEPROTECT);
+	if (minor)
+		expected |= BIT_ULL(_UFFDIO_CONTINUE);
+
+	if ((ioctls & expected) != expected)
+		err("unexpected uffdio_register.ioctls "
+		    "(miss=%d, wp=%d, minor=%d): expected=0x%"PRIx64", "
+		    "returned=0x%"PRIx64, miss, wp, minor, expected, ioctls);
+
+	if (uffd_unregister(gopts->uffd, gopts->area_dst, gopts->page_size))
+		err("unregister");
+}
+
+static void uffd_register_ioctls_test(uffd_global_test_opts_t *gopts, uffd_test_args_t *args)
+{
+	int miss, wp, minor;
+
+	for (miss = 0; miss <= 1; miss++)
+		for (wp = 0; wp <= 1; wp++)
+			for (minor = 0; minor <= 1; minor++)
+				do_register_ioctls_test(gopts, args, miss, wp, minor);
+
+	uffd_test_pass();
+}
+
+uffd_test_case_t uffd_tests[] = {
+	{
+		/* Test returned uffdio_register.ioctls. */
+		.name = "register-ioctls",
+		.uffd_fn = uffd_register_ioctls_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_MISSING_HUGETLBFS |
+		UFFD_FEATURE_MISSING_SHMEM |
+		UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM |
+		UFFD_FEATURE_MINOR_HUGETLBFS |
+		UFFD_FEATURE_MINOR_SHMEM,
+	},
+	{
+		.name = "zeropage",
+		.uffd_fn = uffd_zeropage_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = 0,
+	},
+	{
+		.name = "move",
+		.uffd_fn = uffd_move_test,
+		.mem_targets = MEM_ANON,
+		.uffd_feature_required = UFFD_FEATURE_MOVE,
+		.test_case_ops = &uffd_move_test_case_ops,
+	},
+	{
+		.name = "move-pmd",
+		.uffd_fn = uffd_move_pmd_test,
+		.mem_targets = MEM_ANON,
+		.uffd_feature_required = UFFD_FEATURE_MOVE,
+		.test_case_ops = &uffd_move_test_pmd_case_ops,
+	},
+	{
+		.name = "move-pmd-split",
+		.uffd_fn = uffd_move_pmd_split_test,
+		.mem_targets = MEM_ANON,
+		.uffd_feature_required = UFFD_FEATURE_MOVE,
+		.test_case_ops = &uffd_move_test_pmd_case_ops,
+	},
+	{
+		.name = "wp-fork",
+		.uffd_fn = uffd_wp_fork_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM,
+	},
+	{
+		.name = "wp-fork-with-event",
+		.uffd_fn = uffd_wp_fork_with_event_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM |
+		/* when set, child process should inherit uffd-wp bits */
+		UFFD_FEATURE_EVENT_FORK,
+	},
+	{
+		.name = "wp-fork-pin",
+		.uffd_fn = uffd_wp_fork_pin_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM,
+	},
+	{
+		.name = "wp-fork-pin-with-event",
+		.uffd_fn = uffd_wp_fork_pin_with_event_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM |
+		/* when set, child process should inherit uffd-wp bits */
+		UFFD_FEATURE_EVENT_FORK,
+	},
+	{
+		.name = "wp-unpopulated",
+		.uffd_fn = uffd_wp_unpopulated_test,
+		.mem_targets = MEM_ANON,
+		.uffd_feature_required =
+		UFFD_FEATURE_PAGEFAULT_FLAG_WP | UFFD_FEATURE_WP_UNPOPULATED,
+	},
+	{
+		.name = "minor",
+		.uffd_fn = uffd_minor_test,
+		.mem_targets = MEM_SHMEM | MEM_HUGETLB,
+		.uffd_feature_required =
+		UFFD_FEATURE_MINOR_HUGETLBFS | UFFD_FEATURE_MINOR_SHMEM,
+	},
+	{
+		.name = "minor-wp",
+		.uffd_fn = uffd_minor_wp_test,
+		.mem_targets = MEM_SHMEM | MEM_HUGETLB,
+		.uffd_feature_required =
+		UFFD_FEATURE_MINOR_HUGETLBFS | UFFD_FEATURE_MINOR_SHMEM |
+		UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		/*
+		 * HACK: here we leveraged WP_UNPOPULATED to detect whether
+		 * minor mode supports wr-protect.  There's no feature flag
+		 * for it so this is the best we can test against.
+		 */
+		UFFD_FEATURE_WP_UNPOPULATED,
+	},
+	{
+		.name = "minor-collapse",
+		.uffd_fn = uffd_minor_collapse_test,
+		/* MADV_COLLAPSE only works with shmem */
+		.mem_targets = MEM_SHMEM,
+		/* We can't test MADV_COLLAPSE, so try our luck */
+		.uffd_feature_required = UFFD_FEATURE_MINOR_SHMEM,
+	},
+	{
+		.name = "sigbus",
+		.uffd_fn = uffd_sigbus_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_SIGBUS |
+		UFFD_FEATURE_EVENT_FORK,
+	},
+	{
+		.name = "sigbus-wp",
+		.uffd_fn = uffd_sigbus_wp_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_SIGBUS |
+		UFFD_FEATURE_EVENT_FORK | UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM,
+	},
+	{
+		.name = "events",
+		.uffd_fn = uffd_events_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_EVENT_FORK |
+		UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE,
+	},
+	{
+		.name = "events-wp",
+		.uffd_fn = uffd_events_wp_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_EVENT_FORK |
+		UFFD_FEATURE_EVENT_REMAP | UFFD_FEATURE_EVENT_REMOVE |
+		UFFD_FEATURE_PAGEFAULT_FLAG_WP |
+		UFFD_FEATURE_WP_HUGETLBFS_SHMEM,
+	},
+	{
+		.name = "poison",
+		.uffd_fn = uffd_poison_test,
+		.mem_targets = MEM_ALL,
+		.uffd_feature_required = UFFD_FEATURE_POISON,
+	},
+	{
+		.name = "mmap-changing",
+		.uffd_fn = uffd_mmap_changing_test,
+		/*
+		 * There's no point running this test over all mem types as
+		 * they share the same code paths.
+		 *
+		 * Choose shmem for simplicity, because (1) shmem supports
+		 * MINOR mode to cover UFFDIO_CONTINUE, and (2) shmem is
+		 * almost always available (unlike hugetlb).  Here we
+		 * abused SHMEM for UFFDIO_MOVE, but the test we want to
+		 * cover doesn't yet need the correct memory type..
+		 */
+		.mem_targets = MEM_SHMEM,
+		/*
+		 * Any UFFD_FEATURE_EVENT_* should work to trigger the
+		 * race logically, but choose the simplest (REMOVE).
+		 *
+		 * Meanwhile, since we'll cover quite a few new ioctl()s
+		 * (CONTINUE, POISON, MOVE), skip this test for old kernels
+		 * by choosing all of them.
+		 */
+		.uffd_feature_required = UFFD_FEATURE_EVENT_REMOVE |
+		UFFD_FEATURE_MOVE | UFFD_FEATURE_POISON |
+		UFFD_FEATURE_MINOR_SHMEM,
+	},
+};
+
+static void usage(const char *prog)
+{
+	printf("usage: %s [-f TESTNAME]\n", prog);
+	puts("");
+	puts(" -f: test name to filter (e.g., event)");
+	puts(" -h: show the help msg");
+	puts(" -l: list tests only");
+	puts("");
+	exit(KSFT_FAIL);
+}
+
+int main(int argc, char *argv[])
+{
+	int n_tests = sizeof(uffd_tests) / sizeof(uffd_test_case_t);
+	int n_mems = sizeof(mem_types) / sizeof(mem_type_t);
+	const char *test_filter = NULL;
+	bool list_only = false;
+	uffd_test_case_t *test;
+	mem_type_t *mem_type;
+	uffd_test_args_t args;
+	const char *errmsg;
+	int has_uffd, opt;
+	int i, j;
+
+	while ((opt = getopt(argc, argv, "f:hl")) != -1) {
+		switch (opt) {
+		case 'f':
+			test_filter = optarg;
+			break;
+		case 'l':
+			list_only = true;
+			break;
+		case 'h':
+		default:
+			/* Unknown */
+			usage(argv[0]);
+			break;
+		}
+	}
+
+	if (!test_filter && !list_only) {
+		has_uffd = test_uffd_api(false);
+		has_uffd |= test_uffd_api(true);
+
+		if (!has_uffd) {
+			printf("Userfaultfd not supported or unprivileged, skip all tests\n");
+			exit(KSFT_SKIP);
+		}
+	}
+
+	for (i = 0; i < n_tests; i++) {
+		test = &uffd_tests[i];
+		if (test_filter && !strstr(test->name, test_filter))
+			continue;
+		if (list_only) {
+			printf("%s\n", test->name);
+			continue;
+		}
+		for (j = 0; j < n_mems; j++) {
+			mem_type = &mem_types[j];
+
+			/* Initialize global test options */
+			uffd_global_test_opts_t gopts = { 0 };
+
+			gopts.map_shared = mem_type->shared;
+			uffd_test_ops = mem_type->mem_ops;
+			uffd_test_case_ops = test->test_case_ops;
+
+			if (mem_type->mem_flag & (MEM_HUGETLB_PRIVATE | MEM_HUGETLB)) {
+				gopts.page_size = default_huge_page_size();
+				if (gopts.page_size == 0) {
+					uffd_test_skip("huge page size is 0, feature missing?");
+					continue;
+				}
+			} else {
+				gopts.page_size = psize();
+			}
+
+			/* Ensure we have at least 2 pages */
+			gopts.nr_pages = MAX(UFFD_TEST_MEM_SIZE, gopts.page_size * 2)
+				/ gopts.page_size;
+
+			gopts.nr_parallel = 1;
+
+			/* Initialize test arguments */
+			args.mem_type = mem_type;
+
+			if (!(test->mem_targets & mem_type->mem_flag))
+				continue;
+
+			uffd_test_start("%s on %s", test->name, mem_type->name);
+			if (!uffd_feature_supported(test)) {
+				uffd_test_skip("feature missing");
+				continue;
+			}
+			if (uffd_test_ctx_init(&gopts, test->uffd_feature_required, &errmsg)) {
+				uffd_test_skip(errmsg);
+				continue;
+			}
+			test->uffd_fn(&gopts, &args);
+			uffd_test_ctx_clear(&gopts);
+		}
+	}
+
+	if (!list_only)
+		uffd_test_report();
+
+	return ksft_get_fail_cnt() ? KSFT_FAIL : KSFT_PASS;
+}
+
+#else /* __NR_userfaultfd */
+
+#warning "missing __NR_userfaultfd definition"
+
+int main(void)
+{
+	printf("Skipping %s (missing __NR_userfaultfd)\n", __file__);
+	return KSFT_SKIP;
+}
+
+#endif /* __NR_userfaultfd */
diff --git a/tools/testing/selftests/mm/uffd-wp-mremap.c b/tools/testing/selftests/mm/uffd-wp-mremap.c
new file mode 100644
index 000000000000..17186d4a4147
--- /dev/null
+++ b/tools/testing/selftests/mm/uffd-wp-mremap.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#define _GNU_SOURCE
+#include <stdbool.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <linux/mman.h>
+#include <sys/mman.h>
+#include "kselftest.h"
+#include "thp_settings.h"
+#include "uffd-common.h"
+
+static int pagemap_fd;
+static size_t pagesize;
+static int nr_pagesizes = 1;
+static int nr_thpsizes;
+static size_t thpsizes[20];
+static int nr_hugetlbsizes;
+static size_t hugetlbsizes[10];
+
+static int detect_thp_sizes(size_t sizes[], int max)
+{
+	int count = 0;
+	unsigned long orders;
+	size_t kb;
+	int i;
+
+	/* thp not supported at all. */
+	if (!read_pmd_pagesize())
+		return 0;
+
+	orders = thp_supported_orders();
+
+	for (i = 0; orders && count < max; i++) {
+		if (!(orders & (1UL << i)))
+			continue;
+		orders &= ~(1UL << i);
+		kb = (pagesize >> 10) << i;
+		sizes[count++] = kb * 1024;
+		ksft_print_msg("[INFO] detected THP size: %zu KiB\n", kb);
+	}
+
+	return count;
+}
+
+static void *mmap_aligned(size_t size, int prot, int flags)
+{
+	size_t mmap_size = size * 2;
+	char *mmap_mem, *mem;
+
+	mmap_mem = mmap(NULL, mmap_size, prot, flags, -1, 0);
+	if (mmap_mem == MAP_FAILED)
+		return mmap_mem;
+
+	mem = (char *)(((uintptr_t)mmap_mem + size - 1) & ~(size - 1));
+	munmap(mmap_mem, mem - mmap_mem);
+	munmap(mem + size, mmap_mem + mmap_size - mem - size);
+
+	return mem;
+}
+
+static void *alloc_one_folio(size_t size, bool private, bool hugetlb)
+{
+	bool thp = !hugetlb && size > pagesize;
+	int flags = MAP_ANONYMOUS;
+	int prot = PROT_READ | PROT_WRITE;
+	char *mem, *addr;
+
+	assert((size & (size - 1)) == 0);
+
+	if (private)
+		flags |= MAP_PRIVATE;
+	else
+		flags |= MAP_SHARED;
+
+	/*
+	 * For THP, we must explicitly enable the THP size, allocate twice the
+	 * required space then manually align.
+	 */
+	if (thp) {
+		struct thp_settings settings = *thp_current_settings();
+
+		if (private)
+			settings.hugepages[sz2ord(size, pagesize)].enabled = THP_ALWAYS;
+		else
+			settings.shmem_hugepages[sz2ord(size, pagesize)].enabled = SHMEM_ALWAYS;
+
+		thp_push_settings(&settings);
+
+		mem = mmap_aligned(size, prot, flags);
+	} else {
+		if (hugetlb) {
+			flags |= MAP_HUGETLB;
+			flags |= __builtin_ctzll(size) << MAP_HUGE_SHIFT;
+		}
+
+		mem = mmap(NULL, size, prot, flags, -1, 0);
+	}
+
+	if (mem == MAP_FAILED) {
+		mem = NULL;
+		goto out;
+	}
+
+	assert(((uintptr_t)mem & (size - 1)) == 0);
+
+	/*
+	 * Populate the folio by writing the first byte and check that all pages
+	 * are populated. Finally set the whole thing to non-zero data to avoid
+	 * kernel from mapping it back to the zero page.
+	 */
+	mem[0] = 1;
+	for (addr = mem; addr < mem + size; addr += pagesize) {
+		if (!pagemap_is_populated(pagemap_fd, addr)) {
+			munmap(mem, size);
+			mem = NULL;
+			goto out;
+		}
+	}
+	memset(mem, 1, size);
+out:
+	if (thp)
+		thp_pop_settings();
+
+	return mem;
+}
+
+static bool check_uffd_wp_state(void *mem, size_t size, bool expect)
+{
+	uint64_t pte;
+	void *addr;
+
+	for (addr = mem; addr < mem + size; addr += pagesize) {
+		pte = pagemap_get_entry(pagemap_fd, addr);
+		if (!!(pte & PM_UFFD_WP) != expect) {
+			ksft_test_result_fail("uffd-wp not %s for pte %lu!\n",
+					      expect ? "set" : "clear",
+					      (addr - mem) / pagesize);
+			return false;
+		}
+	}
+
+	return true;
+}
+
+static bool range_is_swapped(void *addr, size_t size)
+{
+	for (; size; addr += pagesize, size -= pagesize)
+		if (!pagemap_is_swapped(pagemap_fd, addr))
+			return false;
+	return true;
+}
+
+static void test_one_folio(uffd_global_test_opts_t *gopts, size_t size, bool private,
+			   bool swapout, bool hugetlb)
+{
+	struct uffdio_writeprotect wp_prms;
+	uint64_t features = 0;
+	void *addr = NULL;
+	void *mem = NULL;
+
+	assert(!(hugetlb && swapout));
+
+	ksft_print_msg("[RUN] %s(size=%zu, private=%s, swapout=%s, hugetlb=%s)\n",
+				__func__,
+				size,
+				private ? "true" : "false",
+				swapout ? "true" : "false",
+				hugetlb ? "true" : "false");
+
+	/* Allocate a folio of required size and type. */
+	mem = alloc_one_folio(size, private, hugetlb);
+	if (!mem) {
+		ksft_test_result_fail("alloc_one_folio() failed\n");
+		goto out;
+	}
+
+	/* Register range for uffd-wp. */
+	if (userfaultfd_open(gopts, &features)) {
+		if (errno == ENOENT)
+			ksft_test_result_skip("userfaultfd not available\n");
+		else
+			ksft_test_result_fail("userfaultfd_open() failed\n");
+		goto out;
+	}
+	if (uffd_register(gopts->uffd, mem, size, false, true, false)) {
+		ksft_test_result_fail("uffd_register() failed\n");
+		goto out;
+	}
+	wp_prms.mode = UFFDIO_WRITEPROTECT_MODE_WP;
+	wp_prms.range.start = (uintptr_t)mem;
+	wp_prms.range.len = size;
+	if (ioctl(gopts->uffd, UFFDIO_WRITEPROTECT, &wp_prms)) {
+		ksft_test_result_fail("ioctl(UFFDIO_WRITEPROTECT) failed\n");
+		goto out;
+	}
+
+	if (swapout) {
+		madvise(mem, size, MADV_PAGEOUT);
+		if (!range_is_swapped(mem, size)) {
+			ksft_test_result_skip("MADV_PAGEOUT did not work, is swap enabled?\n");
+			goto out;
+		}
+	}
+
+	/* Check that uffd-wp is set for all PTEs in range. */
+	if (!check_uffd_wp_state(mem, size, true))
+		goto out;
+
+	/*
+	 * Move the mapping to a new, aligned location. Since
+	 * UFFD_FEATURE_EVENT_REMAP is not set, we expect the uffd-wp bit for
+	 * each PTE to be cleared in the new mapping.
+	 */
+	addr = mmap_aligned(size, PROT_NONE, MAP_PRIVATE | MAP_ANONYMOUS);
+	if (addr == MAP_FAILED) {
+		ksft_test_result_fail("mmap_aligned() failed\n");
+		goto out;
+	}
+	if (mremap(mem, size, size, MREMAP_FIXED | MREMAP_MAYMOVE, addr) == MAP_FAILED) {
+		ksft_test_result_fail("mremap() failed\n");
+		munmap(addr, size);
+		goto out;
+	}
+	mem = addr;
+
+	/* Check that uffd-wp is cleared for all PTEs in range. */
+	if (!check_uffd_wp_state(mem, size, false))
+		goto out;
+
+	ksft_test_result_pass("%s(size=%zu, private=%s, swapout=%s, hugetlb=%s)\n",
+				__func__,
+				size,
+				private ? "true" : "false",
+				swapout ? "true" : "false",
+				hugetlb ? "true" : "false");
+out:
+	if (mem)
+		munmap(mem, size);
+	if (gopts->uffd >= 0) {
+		close(gopts->uffd);
+		gopts->uffd = -1;
+	}
+}
+
+struct testcase {
+	size_t *sizes;
+	int *nr_sizes;
+	bool private;
+	bool swapout;
+	bool hugetlb;
+};
+
+static const struct testcase testcases[] = {
+	/* base pages. */
+	{
+		.sizes = &pagesize,
+		.nr_sizes = &nr_pagesizes,
+		.private = false,
+		.swapout = false,
+		.hugetlb = false,
+	},
+	{
+		.sizes = &pagesize,
+		.nr_sizes = &nr_pagesizes,
+		.private = true,
+		.swapout = false,
+		.hugetlb = false,
+	},
+	{
+		.sizes = &pagesize,
+		.nr_sizes = &nr_pagesizes,
+		.private = false,
+		.swapout = true,
+		.hugetlb = false,
+	},
+	{
+		.sizes = &pagesize,
+		.nr_sizes = &nr_pagesizes,
+		.private = true,
+		.swapout = true,
+		.hugetlb = false,
+	},
+
+	/* thp. */
+	{
+		.sizes = thpsizes,
+		.nr_sizes = &nr_thpsizes,
+		.private = false,
+		.swapout = false,
+		.hugetlb = false,
+	},
+	{
+		.sizes = thpsizes,
+		.nr_sizes = &nr_thpsizes,
+		.private = true,
+		.swapout = false,
+		.hugetlb = false,
+	},
+	{
+		.sizes = thpsizes,
+		.nr_sizes = &nr_thpsizes,
+		.private = false,
+		.swapout = true,
+		.hugetlb = false,
+	},
+	{
+		.sizes = thpsizes,
+		.nr_sizes = &nr_thpsizes,
+		.private = true,
+		.swapout = true,
+		.hugetlb = false,
+	},
+
+	/* hugetlb. */
+	{
+		.sizes = hugetlbsizes,
+		.nr_sizes = &nr_hugetlbsizes,
+		.private = false,
+		.swapout = false,
+		.hugetlb = true,
+	},
+	{
+		.sizes = hugetlbsizes,
+		.nr_sizes = &nr_hugetlbsizes,
+		.private = true,
+		.swapout = false,
+		.hugetlb = true,
+	},
+};
+
+int main(int argc, char **argv)
+{
+	uffd_global_test_opts_t gopts = { 0 };
+	struct thp_settings settings;
+	int i, j, plan = 0;
+
+	pagesize = getpagesize();
+	nr_thpsizes = detect_thp_sizes(thpsizes, ARRAY_SIZE(thpsizes));
+	nr_hugetlbsizes = detect_hugetlb_page_sizes(hugetlbsizes,
+						    ARRAY_SIZE(hugetlbsizes));
+
+	/* If THP is supported, save THP settings and initially disable THP. */
+	if (nr_thpsizes) {
+		thp_save_settings();
+		thp_read_settings(&settings);
+		for (i = 0; i < NR_ORDERS; i++) {
+			settings.hugepages[i].enabled = THP_NEVER;
+			settings.shmem_hugepages[i].enabled = SHMEM_NEVER;
+		}
+		thp_push_settings(&settings);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(testcases); i++)
+		plan += *testcases[i].nr_sizes;
+	ksft_set_plan(plan);
+
+	pagemap_fd = open("/proc/self/pagemap", O_RDONLY);
+	if (pagemap_fd < 0)
+		ksft_exit_fail_msg("opening pagemap failed\n");
+
+	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
+		const struct testcase *tc = &testcases[i];
+
+		for (j = 0; j < *tc->nr_sizes; j++)
+			test_one_folio(&gopts, tc->sizes[j], tc->private,
+				       tc->swapout, tc->hugetlb);
+	}
+
+	/* If THP is supported, restore original THP settings. */
+	if (nr_thpsizes)
+		thp_restore_settings();
+
+	i = ksft_get_fail_cnt();
+	if (i)
+		ksft_exit_fail_msg("%d out of %d tests failed\n",
+				   i, ksft_test_num());
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/mm/va_high_addr_switch.c b/tools/testing/selftests/mm/va_high_addr_switch.c
new file mode 100644
index 000000000000..02f290a69132
--- /dev/null
+++ b/tools/testing/selftests/mm/va_high_addr_switch.c
@@ -0,0 +1,336 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ *
+ * Authors: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
+ * Authors: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ */
+
+#include <stdio.h>
+#include <sys/mman.h>
+#include <string.h>
+
+#include "vm_util.h"
+#include "kselftest.h"
+
+/*
+ * The hint addr value is used to allocate addresses
+ * beyond the high address switch boundary.
+ */
+
+#define ADDR_MARK_128TB	(1UL << 47)
+#define ADDR_MARK_256TB	(1UL << 48)
+
+#define HIGH_ADDR_128TB	(1UL << 48)
+#define HIGH_ADDR_256TB	(1UL << 49)
+
+struct testcase {
+	void *addr;
+	unsigned long size;
+	unsigned long flags;
+	const char *msg;
+	unsigned int low_addr_required:1;
+	unsigned int keep_mapped:1;
+};
+
+static struct testcase *testcases;
+static struct testcase *hugetlb_testcases;
+static int sz_testcases, sz_hugetlb_testcases;
+static unsigned long switch_hint;
+
+/* Initialize testcases inside a function to compute parameters at runtime */
+void testcases_init(void)
+{
+	unsigned long pagesize = getpagesize();
+	unsigned long hugepagesize = default_huge_page_size();
+	unsigned long low_addr = (1UL << 30);
+	unsigned long addr_switch_hint = ADDR_MARK_128TB;
+	unsigned long high_addr = HIGH_ADDR_128TB;
+
+#ifdef __aarch64__
+
+	/* Post LPA2, the lower userspace VA on a 16K pagesize is 47 bits. */
+	if (pagesize != (16UL << 10)) {
+		addr_switch_hint = ADDR_MARK_256TB;
+		high_addr = HIGH_ADDR_256TB;
+	}
+#endif
+
+	struct testcase t[] = {
+		{
+			/*
+			 * If stack is moved, we could possibly allocate
+			 * this at the requested address.
+			 */
+			.addr = ((void *)(addr_switch_hint - pagesize)),
+			.size = pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - pagesize, pagesize)",
+			.low_addr_required = 1,
+		},
+		{
+			/*
+			 * Unless MAP_FIXED is specified, allocation based on hint
+			 * addr is never at requested address or above it, which is
+			 * beyond high address switch boundary in this case. Instead,
+			 * a suitable allocation is found in lower address space.
+			 */
+			.addr = ((void *)(addr_switch_hint - pagesize)),
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - pagesize, (2 * pagesize))",
+			.low_addr_required = 1,
+		},
+		{
+			/*
+			 * Exact mapping at high address switch boundary, should
+			 * be obtained even without MAP_FIXED as area is free.
+			 */
+			.addr = ((void *)(addr_switch_hint)),
+			.size = pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint, pagesize)",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)(addr_switch_hint),
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
+			.msg = "mmap(addr_switch_hint, 2 * pagesize, MAP_FIXED)",
+		},
+		{
+			.addr = NULL,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(NULL)",
+			.low_addr_required = 1,
+		},
+		{
+			.addr = (void *)low_addr,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(low_addr)",
+			.low_addr_required = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(high_addr)",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(high_addr) again",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
+			.msg = "mmap(high_addr, MAP_FIXED)",
+		},
+		{
+			.addr = (void *) -1,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(-1)",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *) -1,
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(-1) again",
+		},
+		{
+			.addr = ((void *)(addr_switch_hint - pagesize)),
+			.size = pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - pagesize, pagesize)",
+			.low_addr_required = 1,
+		},
+		{
+			.addr = (void *)(addr_switch_hint - pagesize),
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - pagesize, 2 * pagesize)",
+			.low_addr_required = 1,
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)(addr_switch_hint - pagesize / 2),
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - pagesize/2 , 2 * pagesize)",
+			.low_addr_required = 1,
+			.keep_mapped = 1,
+		},
+		{
+			.addr = ((void *)(addr_switch_hint)),
+			.size = pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint, pagesize)",
+		},
+		{
+			.addr = (void *)(addr_switch_hint),
+			.size = 2 * pagesize,
+			.flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
+			.msg = "mmap(addr_switch_hint, 2 * pagesize, MAP_FIXED)",
+		},
+	};
+
+	struct testcase ht[] = {
+		{
+			.addr = NULL,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(NULL, MAP_HUGETLB)",
+			.low_addr_required = 1,
+		},
+		{
+			.addr = (void *)low_addr,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(low_addr, MAP_HUGETLB)",
+			.low_addr_required = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(high_addr, MAP_HUGETLB)",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(high_addr, MAP_HUGETLB) again",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)high_addr,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
+			.msg = "mmap(high_addr, MAP_FIXED | MAP_HUGETLB)",
+		},
+		{
+			.addr = (void *) -1,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(-1, MAP_HUGETLB)",
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *) -1,
+			.size = hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(-1, MAP_HUGETLB) again",
+		},
+		{
+			.addr = (void *)(addr_switch_hint - hugepagesize),
+			.size = 2 * hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
+			.msg = "mmap(addr_switch_hint - hugepagesize, 2*hugepagesize, MAP_HUGETLB)",
+			.low_addr_required = 1,
+			.keep_mapped = 1,
+		},
+		{
+			.addr = (void *)(addr_switch_hint),
+			.size = 2 * hugepagesize,
+			.flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
+			.msg = "mmap(addr_switch_hint , 2*hugepagesize, MAP_FIXED | MAP_HUGETLB)",
+		},
+	};
+
+	testcases = malloc(sizeof(t));
+	hugetlb_testcases = malloc(sizeof(ht));
+
+	/* Copy into global arrays */
+	memcpy(testcases, t, sizeof(t));
+	memcpy(hugetlb_testcases, ht, sizeof(ht));
+
+	sz_testcases = ARRAY_SIZE(t);
+	sz_hugetlb_testcases = ARRAY_SIZE(ht);
+	switch_hint = addr_switch_hint;
+}
+
+static int run_test(struct testcase *test, int count)
+{
+	void *p;
+	int i, ret = KSFT_PASS;
+
+	for (i = 0; i < count; i++) {
+		struct testcase *t = test + i;
+
+		p = mmap(t->addr, t->size, PROT_READ | PROT_WRITE, t->flags, -1, 0);
+
+		printf("%s: %p - ", t->msg, p);
+
+		if (p == MAP_FAILED) {
+			printf("FAILED\n");
+			ret = KSFT_FAIL;
+			continue;
+		}
+
+		if (t->low_addr_required && p >= (void *)(switch_hint)) {
+			printf("FAILED\n");
+			ret = KSFT_FAIL;
+		} else {
+			/*
+			 * Do a dereference of the address returned so that we catch
+			 * bugs in page fault handling
+			 */
+			memset(p, 0, t->size);
+			printf("OK\n");
+		}
+		if (!t->keep_mapped)
+			munmap(p, t->size);
+	}
+
+	return ret;
+}
+
+#ifdef __aarch64__
+/* Check if userspace VA > 48 bits */
+static int high_address_present(void)
+{
+	void *ptr = mmap((void *)(1UL << 50), 1, PROT_READ | PROT_WRITE,
+			 MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0);
+	if (ptr == MAP_FAILED)
+		return 0;
+
+	munmap(ptr, 1);
+	return 1;
+}
+#endif
+
+static int supported_arch(void)
+{
+#if defined(__powerpc64__)
+	return 1;
+#elif defined(__x86_64__)
+	return 1;
+#elif defined(__aarch64__)
+	return high_address_present();
+#else
+	return 0;
+#endif
+}
+
+int main(int argc, char **argv)
+{
+	int ret;
+
+	if (!supported_arch())
+		return KSFT_SKIP;
+
+	testcases_init();
+
+	ret = run_test(testcases, sz_testcases);
+	if (argc == 2 && !strcmp(argv[1], "--run-hugetlb"))
+		ret = run_test(hugetlb_testcases, sz_hugetlb_testcases);
+	return ret;
+}
diff --git a/tools/testing/selftests/mm/va_high_addr_switch.sh b/tools/testing/selftests/mm/va_high_addr_switch.sh
new file mode 100755
index 000000000000..a7d4b02b21dd
--- /dev/null
+++ b/tools/testing/selftests/mm/va_high_addr_switch.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (C) 2022 Adam Sindelar (Meta) <adam@wowsignal.io>
+#
+# This is a test for mmap behavior with 5-level paging. This script wraps the
+# real test to check that the kernel is configured to support at least 5
+# pagetable levels.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+orig_nr_hugepages=0
+
+skip()
+{
+	echo "$1"
+	exit $ksft_skip
+}
+
+check_supported_x86_64()
+{
+	local config="/proc/config.gz"
+	[[ -f "${config}" ]] || config="/boot/config-$(uname -r)"
+	[[ -f "${config}" ]] || skip "Cannot find kernel config in /proc or /boot"
+
+	# gzip -dcfq automatically handles both compressed and plaintext input.
+	# See man 1 gzip under '-f'.
+	local pg_table_levels=$(gzip -dcfq "${config}" | grep PGTABLE_LEVELS | cut -d'=' -f 2)
+
+	local cpu_supports_pl5=$(awk '/^flags/ {if (/la57/) {print 0;}
+		else {print 1}; exit}' /proc/cpuinfo 2>/dev/null)
+
+	if [[ "${pg_table_levels}" -lt 5 ]]; then
+		skip "$0: PGTABLE_LEVELS=${pg_table_levels}, must be >= 5 to run this test"
+	elif [[ "${cpu_supports_pl5}" -ne 0 ]]; then
+		skip "$0: CPU does not have the necessary la57 flag to support page table level 5"
+	fi
+}
+
+check_supported_ppc64()
+{
+	local config="/proc/config.gz"
+	[[ -f "${config}" ]] || config="/boot/config-$(uname -r)"
+	[[ -f "${config}" ]] || skip "Cannot find kernel config in /proc or /boot"
+
+	local pg_table_levels=$(gzip -dcfq "${config}" | grep PGTABLE_LEVELS | cut -d'=' -f 2)
+	if [[ "${pg_table_levels}" -lt 5 ]]; then
+		skip "$0: PGTABLE_LEVELS=${pg_table_levels}, must be >= 5 to run this test"
+	fi
+
+	local mmu_support=$(grep -m1 "mmu" /proc/cpuinfo | awk '{print $3}')
+	if [[ "$mmu_support" != "radix" ]]; then
+		skip "$0: System does not use Radix MMU, required for 5-level paging"
+	fi
+
+	local hugepages_total=$(awk '/HugePages_Total/ {print $2}' /proc/meminfo)
+	if [[ "${hugepages_total}" -eq 0 ]]; then
+		skip "$0: HugePages are not enabled, required for some tests"
+	fi
+}
+
+check_test_requirements()
+{
+	# The test supports x86_64 and powerpc64. We currently have no useful
+	# eligibility check for powerpc64, and the test itself will reject other
+	# architectures.
+	case `uname -m` in
+		"x86_64")
+			check_supported_x86_64
+		;;
+		"ppc64le"|"ppc64")
+			check_supported_ppc64
+		;;
+		*)
+			return 0
+		;;
+	esac
+}
+
+save_nr_hugepages()
+{
+	orig_nr_hugepages=$(cat /proc/sys/vm/nr_hugepages)
+}
+
+restore_nr_hugepages()
+{
+	echo "$orig_nr_hugepages" > /proc/sys/vm/nr_hugepages
+}
+
+setup_nr_hugepages()
+{
+	local needpgs=$1
+	while read -r name size unit; do
+		if [ "$name" = "HugePages_Free:" ]; then
+			freepgs="$size"
+			break
+		fi
+	done < /proc/meminfo
+	if [ "$freepgs" -ge "$needpgs" ]; then
+		return
+	fi
+	local hpgs=$((orig_nr_hugepages + needpgs))
+	echo $hpgs > /proc/sys/vm/nr_hugepages
+
+	local nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages)
+	if [ "$nr_hugepgs" != "$hpgs" ]; then
+		restore_nr_hugepages
+		skip "$0: no enough hugepages for testing"
+	fi
+}
+
+check_test_requirements
+save_nr_hugepages
+# 4 keep_mapped pages, and one for tmp usage
+setup_nr_hugepages 5
+./va_high_addr_switch --run-hugetlb
+restore_nr_hugepages
diff --git a/tools/testing/selftests/mm/virtual_address_range.c b/tools/testing/selftests/mm/virtual_address_range.c
new file mode 100644
index 000000000000..4f0923825ed7
--- /dev/null
+++ b/tools/testing/selftests/mm/virtual_address_range.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2017, Anshuman Khandual, IBM Corp.
+ *
+ * Works on architectures which support 128TB virtual
+ * address range and beyond.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/prctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include <fcntl.h>
+
+#include "vm_util.h"
+#include "kselftest.h"
+
+/*
+ * Maximum address range mapped with a single mmap()
+ * call is little bit more than 1GB. Hence 1GB is
+ * chosen as the single chunk size for address space
+ * mapping.
+ */
+
+#define SZ_1GB	(1024 * 1024 * 1024UL)
+#define SZ_1TB	(1024 * 1024 * 1024 * 1024UL)
+
+#define MAP_CHUNK_SIZE	SZ_1GB
+
+/*
+ * Address space till 128TB is mapped without any hint
+ * and is enabled by default. Address space beyond 128TB
+ * till 512TB is obtained by passing hint address as the
+ * first argument into mmap() system call.
+ *
+ * The process heap address space is divided into two
+ * different areas one below 128TB and one above 128TB
+ * till it reaches 512TB. One with size 128TB and the
+ * other being 384TB.
+ *
+ * On Arm64 the address space is 256TB and support for
+ * high mappings up to 4PB virtual address space has
+ * been added.
+ *
+ * On PowerPC64, the address space up to 128TB can be
+ * mapped without a hint. Addresses beyond 128TB, up to
+ * 4PB, can be mapped with a hint.
+ *
+ */
+
+#define NR_CHUNKS_128TB   ((128 * SZ_1TB) / MAP_CHUNK_SIZE) /* Number of chunks for 128TB */
+#define NR_CHUNKS_256TB   (NR_CHUNKS_128TB * 2UL)
+#define NR_CHUNKS_384TB   (NR_CHUNKS_128TB * 3UL)
+#define NR_CHUNKS_3840TB  (NR_CHUNKS_128TB * 30UL)
+#define NR_CHUNKS_3968TB  (NR_CHUNKS_128TB * 31UL)
+
+#define ADDR_MARK_128TB  (1UL << 47) /* First address beyond 128TB */
+#define ADDR_MARK_256TB  (1UL << 48) /* First address beyond 256TB */
+
+#ifdef __aarch64__
+#define HIGH_ADDR_MARK  ADDR_MARK_256TB
+#define HIGH_ADDR_SHIFT 49
+#define NR_CHUNKS_LOW   NR_CHUNKS_256TB
+#define NR_CHUNKS_HIGH  NR_CHUNKS_3840TB
+#elif defined(__PPC64__)
+#define HIGH_ADDR_MARK  ADDR_MARK_128TB
+#define HIGH_ADDR_SHIFT 48
+#define NR_CHUNKS_LOW   NR_CHUNKS_128TB
+#define NR_CHUNKS_HIGH  NR_CHUNKS_3968TB
+#else
+#define HIGH_ADDR_MARK  ADDR_MARK_128TB
+#define HIGH_ADDR_SHIFT 48
+#define NR_CHUNKS_LOW   NR_CHUNKS_128TB
+#define NR_CHUNKS_HIGH  NR_CHUNKS_384TB
+#endif
+
+static char *hint_addr(void)
+{
+	int bits = HIGH_ADDR_SHIFT + rand() % (63 - HIGH_ADDR_SHIFT);
+
+	return (char *) (1UL << bits);
+}
+
+static void validate_addr(char *ptr, int high_addr)
+{
+	unsigned long addr = (unsigned long) ptr;
+
+	if (high_addr) {
+		if (addr < HIGH_ADDR_MARK)
+			ksft_exit_fail_msg("Bad address %lx\n", addr);
+		return;
+	}
+
+	if (addr > HIGH_ADDR_MARK)
+		ksft_exit_fail_msg("Bad address %lx\n", addr);
+}
+
+static void mark_range(char *ptr, size_t size)
+{
+	if (prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, ptr, size, "virtual_address_range") == -1) {
+		if (errno == EINVAL) {
+			/* Depends on CONFIG_ANON_VMA_NAME */
+			ksft_test_result_skip("prctl(PR_SET_VMA_ANON_NAME) not supported\n");
+			ksft_finished();
+		} else {
+			ksft_exit_fail_perror("prctl(PR_SET_VMA_ANON_NAME) failed\n");
+		}
+	}
+}
+
+static int is_marked_vma(const char *vma_name)
+{
+	return vma_name && !strcmp(vma_name, "[anon:virtual_address_range]\n");
+}
+
+static int validate_lower_address_hint(void)
+{
+	char *ptr;
+
+	ptr = mmap((void *) (1UL << 45), MAP_CHUNK_SIZE, PROT_READ |
+		   PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+	if (ptr == MAP_FAILED)
+		return 0;
+
+	return 1;
+}
+
+static int validate_complete_va_space(void)
+{
+	unsigned long start_addr, end_addr, prev_end_addr;
+	char line[400];
+	char prot[6];
+	FILE *file;
+	int fd;
+
+	fd = open("va_dump", O_CREAT | O_WRONLY, 0600);
+	unlink("va_dump");
+	if (fd < 0) {
+		ksft_test_result_skip("cannot create or open dump file\n");
+		ksft_finished();
+	}
+
+	file = fopen("/proc/self/maps", "r");
+	if (file == NULL)
+		ksft_exit_fail_msg("cannot open /proc/self/maps\n");
+
+	prev_end_addr = 0;
+	while (fgets(line, sizeof(line), file)) {
+		const char *vma_name = NULL;
+		int vma_name_start = 0;
+		unsigned long hop;
+
+		if (sscanf(line, "%lx-%lx %4s %*s %*s %*s %n",
+			   &start_addr, &end_addr, prot, &vma_name_start) != 3)
+			ksft_exit_fail_msg("cannot parse /proc/self/maps\n");
+
+		if (vma_name_start)
+			vma_name = line + vma_name_start;
+
+		/* end of userspace mappings; ignore vsyscall mapping */
+		if (start_addr & (1UL << 63))
+			return 0;
+
+		/* /proc/self/maps must have gaps less than MAP_CHUNK_SIZE */
+		if (start_addr - prev_end_addr >= MAP_CHUNK_SIZE)
+			return 1;
+
+		prev_end_addr = end_addr;
+
+		if (prot[0] != 'r')
+			continue;
+
+		if (check_vmflag_io((void *)start_addr))
+			continue;
+
+		/*
+		 * Confirm whether MAP_CHUNK_SIZE chunk can be found or not.
+		 * If write succeeds, no need to check MAP_CHUNK_SIZE - 1
+		 * addresses after that. If the address was not held by this
+		 * process, write would fail with errno set to EFAULT.
+		 * Anyways, if write returns anything apart from 1, exit the
+		 * program since that would mean a bug in /proc/self/maps.
+		 */
+		hop = 0;
+		while (start_addr + hop < end_addr) {
+			if (write(fd, (void *)(start_addr + hop), 1) != 1)
+				return 1;
+			lseek(fd, 0, SEEK_SET);
+
+			if (is_marked_vma(vma_name))
+				munmap((char *)(start_addr + hop), MAP_CHUNK_SIZE);
+
+			hop += MAP_CHUNK_SIZE;
+		}
+	}
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	char *ptr[NR_CHUNKS_LOW];
+	char **hptr;
+	char *hint;
+	unsigned long i, lchunks, hchunks;
+
+	ksft_print_header();
+	ksft_set_plan(1);
+
+	for (i = 0; i < NR_CHUNKS_LOW; i++) {
+		ptr[i] = mmap(NULL, MAP_CHUNK_SIZE, PROT_READ,
+			      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+		if (ptr[i] == MAP_FAILED) {
+			if (validate_lower_address_hint())
+				ksft_exit_fail_msg("mmap unexpectedly succeeded with hint\n");
+			break;
+		}
+
+		mark_range(ptr[i], MAP_CHUNK_SIZE);
+		validate_addr(ptr[i], 0);
+	}
+	lchunks = i;
+	hptr = (char **) calloc(NR_CHUNKS_HIGH, sizeof(char *));
+	if (hptr == NULL) {
+		ksft_test_result_skip("Memory constraint not fulfilled\n");
+		ksft_finished();
+	}
+
+	for (i = 0; i < NR_CHUNKS_HIGH; i++) {
+		hint = hint_addr();
+		hptr[i] = mmap(hint, MAP_CHUNK_SIZE, PROT_READ,
+			       MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+		if (hptr[i] == MAP_FAILED)
+			break;
+
+		mark_range(hptr[i], MAP_CHUNK_SIZE);
+		validate_addr(hptr[i], 1);
+	}
+	hchunks = i;
+	if (validate_complete_va_space()) {
+		ksft_test_result_fail("BUG in mmap() or /proc/self/maps\n");
+		ksft_finished();
+	}
+
+	for (i = 0; i < lchunks; i++)
+		munmap(ptr[i], MAP_CHUNK_SIZE);
+
+	for (i = 0; i < hchunks; i++)
+		munmap(hptr[i], MAP_CHUNK_SIZE);
+
+	free(hptr);
+
+	ksft_test_result_pass("Test\n");
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/mm/vm_util.c b/tools/testing/selftests/mm/vm_util.c
new file mode 100644
index 000000000000..d954bf91afd5
--- /dev/null
+++ b/tools/testing/selftests/mm/vm_util.c
@@ -0,0 +1,725 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <string.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <inttypes.h>
+#include <sys/ioctl.h>
+#include <linux/userfaultfd.h>
+#include <linux/fs.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include "kselftest.h"
+#include "vm_util.h"
+
+#define PMD_SIZE_FILE_PATH "/sys/kernel/mm/transparent_hugepage/hpage_pmd_size"
+#define SMAP_FILE_PATH "/proc/self/smaps"
+#define STATUS_FILE_PATH "/proc/self/status"
+#define MAX_LINE_LENGTH 500
+
+unsigned int __page_size;
+unsigned int __page_shift;
+
+uint64_t pagemap_get_entry(int fd, char *start)
+{
+	const unsigned long pfn = (unsigned long)start / getpagesize();
+	uint64_t entry;
+	int ret;
+
+	ret = pread(fd, &entry, sizeof(entry), pfn * sizeof(entry));
+	if (ret != sizeof(entry))
+		ksft_exit_fail_msg("reading pagemap failed\n");
+	return entry;
+}
+
+static uint64_t __pagemap_scan_get_categories(int fd, char *start, struct page_region *r)
+{
+	struct pm_scan_arg arg;
+
+	arg.start = (uintptr_t)start;
+	arg.end = (uintptr_t)(start + psize());
+	arg.vec = (uintptr_t)r;
+	arg.vec_len = 1;
+	arg.flags = 0;
+	arg.size = sizeof(struct pm_scan_arg);
+	arg.max_pages = 0;
+	arg.category_inverted = 0;
+	arg.category_mask = 0;
+	arg.category_anyof_mask = PAGE_IS_WPALLOWED | PAGE_IS_WRITTEN | PAGE_IS_FILE |
+				  PAGE_IS_PRESENT | PAGE_IS_SWAPPED | PAGE_IS_PFNZERO |
+				  PAGE_IS_HUGE | PAGE_IS_SOFT_DIRTY;
+	arg.return_mask = arg.category_anyof_mask;
+
+	return ioctl(fd, PAGEMAP_SCAN, &arg);
+}
+
+static uint64_t pagemap_scan_get_categories(int fd, char *start)
+{
+	struct page_region r;
+	long ret;
+
+	ret = __pagemap_scan_get_categories(fd, start, &r);
+	if (ret < 0)
+		ksft_exit_fail_msg("PAGEMAP_SCAN failed: %s\n", strerror(errno));
+	if (ret == 0)
+		return 0;
+	return r.categories;
+}
+
+/* `start` is any valid address. */
+static bool pagemap_scan_supported(int fd, char *start)
+{
+	static int supported = -1;
+	int ret;
+
+	if (supported != -1)
+		return supported;
+
+	/* Provide an invalid address in order to trigger EFAULT. */
+	ret = __pagemap_scan_get_categories(fd, start, (struct page_region *) ~0UL);
+	if (ret == 0)
+		ksft_exit_fail_msg("PAGEMAP_SCAN succeeded unexpectedly\n");
+
+	supported = errno == EFAULT;
+
+	return supported;
+}
+
+static bool page_entry_is(int fd, char *start, char *desc,
+			  uint64_t pagemap_flags, uint64_t pagescan_flags)
+{
+	bool m = pagemap_get_entry(fd, start) & pagemap_flags;
+
+	if (pagemap_scan_supported(fd, start)) {
+		bool s = pagemap_scan_get_categories(fd, start) & pagescan_flags;
+
+		if (m == s)
+			return m;
+
+		ksft_exit_fail_msg(
+			"read and ioctl return unmatched results for %s: %d %d", desc, m, s);
+	}
+	return m;
+}
+
+bool pagemap_is_softdirty(int fd, char *start)
+{
+	return page_entry_is(fd, start, "soft-dirty",
+				PM_SOFT_DIRTY, PAGE_IS_SOFT_DIRTY);
+}
+
+bool pagemap_is_swapped(int fd, char *start)
+{
+	return page_entry_is(fd, start, "swap", PM_SWAP, PAGE_IS_SWAPPED);
+}
+
+bool pagemap_is_populated(int fd, char *start)
+{
+	return page_entry_is(fd, start, "populated",
+				PM_PRESENT | PM_SWAP,
+				PAGE_IS_PRESENT | PAGE_IS_SWAPPED);
+}
+
+unsigned long pagemap_get_pfn(int fd, char *start)
+{
+	uint64_t entry = pagemap_get_entry(fd, start);
+
+	/* If present (63th bit), PFN is at bit 0 -- 54. */
+	if (entry & PM_PRESENT)
+		return entry & 0x007fffffffffffffull;
+	return -1ul;
+}
+
+void clear_softdirty(void)
+{
+	int ret;
+	const char *ctrl = "4";
+	int fd = open("/proc/self/clear_refs", O_WRONLY);
+
+	if (fd < 0)
+		ksft_exit_fail_msg("opening clear_refs failed\n");
+	ret = write(fd, ctrl, strlen(ctrl));
+	close(fd);
+	if (ret != (signed int)strlen(ctrl))
+		ksft_exit_fail_msg("writing clear_refs failed\n");
+}
+
+bool check_for_pattern(FILE *fp, const char *pattern, char *buf, size_t len)
+{
+	while (fgets(buf, len, fp)) {
+		if (!strncmp(buf, pattern, strlen(pattern)))
+			return true;
+	}
+	return false;
+}
+
+uint64_t read_pmd_pagesize(void)
+{
+	int fd;
+	char buf[20];
+	ssize_t num_read;
+
+	fd = open(PMD_SIZE_FILE_PATH, O_RDONLY);
+	if (fd == -1)
+		return 0;
+
+	num_read = read(fd, buf, 19);
+	if (num_read < 1) {
+		close(fd);
+		return 0;
+	}
+	buf[num_read] = '\0';
+	close(fd);
+
+	return strtoul(buf, NULL, 10);
+}
+
+unsigned long rss_anon(void)
+{
+	unsigned long rss_anon = 0;
+	FILE *fp;
+	char buffer[MAX_LINE_LENGTH];
+
+	fp = fopen(STATUS_FILE_PATH, "r");
+	if (!fp)
+		ksft_exit_fail_msg("%s: Failed to open file %s\n", __func__, STATUS_FILE_PATH);
+
+	if (!check_for_pattern(fp, "RssAnon:", buffer, sizeof(buffer)))
+		goto err_out;
+
+	if (sscanf(buffer, "RssAnon:%10lu kB", &rss_anon) != 1)
+		ksft_exit_fail_msg("Reading status error\n");
+
+err_out:
+	fclose(fp);
+	return rss_anon;
+}
+
+char *__get_smap_entry(void *addr, const char *pattern, char *buf, size_t len)
+{
+	int ret;
+	FILE *fp;
+	char *entry = NULL;
+	char addr_pattern[MAX_LINE_LENGTH];
+
+	ret = snprintf(addr_pattern, MAX_LINE_LENGTH, "%08lx-",
+		       (unsigned long) addr);
+	if (ret >= MAX_LINE_LENGTH)
+		ksft_exit_fail_msg("%s: Pattern is too long\n", __func__);
+
+	fp = fopen(SMAP_FILE_PATH, "r");
+	if (!fp)
+		ksft_exit_fail_msg("%s: Failed to open file %s\n", __func__, SMAP_FILE_PATH);
+
+	if (!check_for_pattern(fp, addr_pattern, buf, len))
+		goto err_out;
+
+	/* Fetch the pattern in the same block */
+	if (!check_for_pattern(fp, pattern, buf, len))
+		goto err_out;
+
+	/* Trim trailing newline */
+	entry = strchr(buf, '\n');
+	if (entry)
+		*entry = '\0';
+
+	entry = buf + strlen(pattern);
+
+err_out:
+	fclose(fp);
+	return entry;
+}
+
+bool __check_huge(void *addr, char *pattern, int nr_hpages,
+		  uint64_t hpage_size)
+{
+	char buffer[MAX_LINE_LENGTH];
+	uint64_t thp = -1;
+	char *entry;
+
+	entry = __get_smap_entry(addr, pattern, buffer, sizeof(buffer));
+	if (!entry)
+		goto err_out;
+
+	if (sscanf(entry, "%9" SCNu64 " kB", &thp) != 1)
+		ksft_exit_fail_msg("Reading smap error\n");
+
+err_out:
+	return thp == (nr_hpages * (hpage_size >> 10));
+}
+
+bool check_huge_anon(void *addr, int nr_hpages, uint64_t hpage_size)
+{
+	return __check_huge(addr, "AnonHugePages: ", nr_hpages, hpage_size);
+}
+
+bool check_huge_file(void *addr, int nr_hpages, uint64_t hpage_size)
+{
+	return __check_huge(addr, "FilePmdMapped:", nr_hpages, hpage_size);
+}
+
+bool check_huge_shmem(void *addr, int nr_hpages, uint64_t hpage_size)
+{
+	return __check_huge(addr, "ShmemPmdMapped:", nr_hpages, hpage_size);
+}
+
+int64_t allocate_transhuge(void *ptr, int pagemap_fd)
+{
+	uint64_t ent[2];
+
+	/* drop pmd */
+	if (mmap(ptr, HPAGE_SIZE, PROT_READ | PROT_WRITE,
+		 MAP_FIXED | MAP_ANONYMOUS |
+		 MAP_NORESERVE | MAP_PRIVATE, -1, 0) != ptr)
+		ksft_exit_fail_msg("mmap transhuge\n");
+
+	if (madvise(ptr, HPAGE_SIZE, MADV_HUGEPAGE))
+		ksft_exit_fail_msg("MADV_HUGEPAGE\n");
+
+	/* allocate transparent huge page */
+	*(volatile void **)ptr = ptr;
+
+	if (pread(pagemap_fd, ent, sizeof(ent),
+		  (uintptr_t)ptr >> (pshift() - 3)) != sizeof(ent))
+		ksft_exit_fail_msg("read pagemap\n");
+
+	if (PAGEMAP_PRESENT(ent[0]) && PAGEMAP_PRESENT(ent[1]) &&
+	    PAGEMAP_PFN(ent[0]) + 1 == PAGEMAP_PFN(ent[1]) &&
+	    !(PAGEMAP_PFN(ent[0]) & ((1 << (HPAGE_SHIFT - pshift())) - 1)))
+		return PAGEMAP_PFN(ent[0]);
+
+	return -1;
+}
+
+unsigned long default_huge_page_size(void)
+{
+	unsigned long hps = 0;
+	char *line = NULL;
+	size_t linelen = 0;
+	FILE *f = fopen("/proc/meminfo", "r");
+
+	if (!f)
+		return 0;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "Hugepagesize:       %lu kB", &hps) == 1) {
+			hps <<= 10;
+			break;
+		}
+	}
+
+	free(line);
+	fclose(f);
+	return hps;
+}
+
+int detect_hugetlb_page_sizes(size_t sizes[], int max)
+{
+	DIR *dir = opendir("/sys/kernel/mm/hugepages/");
+	int count = 0;
+
+	if (!dir)
+		return 0;
+
+	while (count < max) {
+		struct dirent *entry = readdir(dir);
+		size_t kb;
+
+		if (!entry)
+			break;
+		if (entry->d_type != DT_DIR)
+			continue;
+		if (sscanf(entry->d_name, "hugepages-%zukB", &kb) != 1)
+			continue;
+		sizes[count++] = kb * 1024;
+		ksft_print_msg("[INFO] detected hugetlb page size: %zu KiB\n",
+			       kb);
+	}
+	closedir(dir);
+	return count;
+}
+
+int pageflags_get(unsigned long pfn, int kpageflags_fd, uint64_t *flags)
+{
+	size_t count;
+
+	count = pread(kpageflags_fd, flags, sizeof(*flags),
+		      pfn * sizeof(*flags));
+
+	if (count != sizeof(*flags))
+		return -1;
+
+	return 0;
+}
+
+/* If `ioctls' non-NULL, the allowed ioctls will be returned into the var */
+int uffd_register_with_ioctls(int uffd, void *addr, uint64_t len,
+			      bool miss, bool wp, bool minor, uint64_t *ioctls)
+{
+	struct uffdio_register uffdio_register = { 0 };
+	uint64_t mode = 0;
+	int ret = 0;
+
+	if (miss)
+		mode |= UFFDIO_REGISTER_MODE_MISSING;
+	if (wp)
+		mode |= UFFDIO_REGISTER_MODE_WP;
+	if (minor)
+		mode |= UFFDIO_REGISTER_MODE_MINOR;
+
+	uffdio_register.range.start = (unsigned long)addr;
+	uffdio_register.range.len = len;
+	uffdio_register.mode = mode;
+
+	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) == -1)
+		ret = -errno;
+	else if (ioctls)
+		*ioctls = uffdio_register.ioctls;
+
+	return ret;
+}
+
+int uffd_register(int uffd, void *addr, uint64_t len,
+		  bool miss, bool wp, bool minor)
+{
+	return uffd_register_with_ioctls(uffd, addr, len,
+					 miss, wp, minor, NULL);
+}
+
+int uffd_unregister(int uffd, void *addr, uint64_t len)
+{
+	struct uffdio_range range = { .start = (uintptr_t)addr, .len = len };
+	int ret = 0;
+
+	if (ioctl(uffd, UFFDIO_UNREGISTER, &range) == -1)
+		ret = -errno;
+
+	return ret;
+}
+
+unsigned long get_free_hugepages(void)
+{
+	unsigned long fhp = 0;
+	char *line = NULL;
+	size_t linelen = 0;
+	FILE *f = fopen("/proc/meminfo", "r");
+
+	if (!f)
+		return fhp;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "HugePages_Free:      %lu", &fhp) == 1)
+			break;
+	}
+
+	free(line);
+	fclose(f);
+	return fhp;
+}
+
+static bool check_vmflag(void *addr, const char *flag)
+{
+	char buffer[MAX_LINE_LENGTH];
+	const char *flags;
+	size_t flaglen;
+
+	flags = __get_smap_entry(addr, "VmFlags:", buffer, sizeof(buffer));
+	if (!flags)
+		ksft_exit_fail_msg("%s: No VmFlags for %p\n", __func__, addr);
+
+	while (true) {
+		flags += strspn(flags, " ");
+
+		flaglen = strcspn(flags, " ");
+		if (!flaglen)
+			return false;
+
+		if (flaglen == strlen(flag) && !memcmp(flags, flag, flaglen))
+			return true;
+
+		flags += flaglen;
+	}
+}
+
+bool check_vmflag_io(void *addr)
+{
+	return check_vmflag(addr, "io");
+}
+
+bool check_vmflag_pfnmap(void *addr)
+{
+	return check_vmflag(addr, "pf");
+}
+
+bool check_vmflag_guard(void *addr)
+{
+	return check_vmflag(addr, "gu");
+}
+
+bool softdirty_supported(void)
+{
+	char *addr;
+	bool supported = false;
+	const size_t pagesize = getpagesize();
+
+	/* New mappings are expected to be marked with VM_SOFTDIRTY (sd). */
+	addr = mmap(0, pagesize, PROT_READ | PROT_WRITE,
+		    MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
+	if (!addr)
+		ksft_exit_fail_msg("mmap failed\n");
+
+	supported = check_vmflag(addr, "sd");
+	munmap(addr, pagesize);
+	return supported;
+}
+
+/*
+ * Open an fd at /proc/$pid/maps and configure procmap_out ready for
+ * PROCMAP_QUERY query. Returns 0 on success, or an error code otherwise.
+ */
+int open_procmap(pid_t pid, struct procmap_fd *procmap_out)
+{
+	char path[256];
+	int ret = 0;
+
+	memset(procmap_out, '\0', sizeof(*procmap_out));
+	sprintf(path, "/proc/%d/maps", pid);
+	procmap_out->query.size = sizeof(procmap_out->query);
+	procmap_out->fd = open(path, O_RDONLY);
+	if (procmap_out->fd < 0)
+		ret = -errno;
+
+	return ret;
+}
+
+/* Perform PROCMAP_QUERY. Returns 0 on success, or an error code otherwise. */
+int query_procmap(struct procmap_fd *procmap)
+{
+	int ret = 0;
+
+	if (ioctl(procmap->fd, PROCMAP_QUERY, &procmap->query) == -1)
+		ret = -errno;
+
+	return ret;
+}
+
+/*
+ * Try to find the VMA at specified address, returns true if found, false if not
+ * found, and the test is failed if any other error occurs.
+ *
+ * On success, procmap->query is populated with the results.
+ */
+bool find_vma_procmap(struct procmap_fd *procmap, void *address)
+{
+	int err;
+
+	procmap->query.query_flags = 0;
+	procmap->query.query_addr = (unsigned long)address;
+	err = query_procmap(procmap);
+	if (!err)
+		return true;
+
+	if (err != -ENOENT)
+		ksft_exit_fail_msg("%s: Error %d on ioctl(PROCMAP_QUERY)\n",
+				   __func__, err);
+	return false;
+}
+
+/*
+ * Close fd used by PROCMAP_QUERY mechanism. Returns 0 on success, or an error
+ * code otherwise.
+ */
+int close_procmap(struct procmap_fd *procmap)
+{
+	return close(procmap->fd);
+}
+
+int write_sysfs(const char *file_path, unsigned long val)
+{
+	FILE *f = fopen(file_path, "w");
+
+	if (!f) {
+		fprintf(stderr, "f %s\n", file_path);
+		perror("fopen");
+		return 1;
+	}
+	if (fprintf(f, "%lu", val) < 0) {
+		perror("fprintf");
+		fclose(f);
+		return 1;
+	}
+	fclose(f);
+
+	return 0;
+}
+
+int read_sysfs(const char *file_path, unsigned long *val)
+{
+	FILE *f = fopen(file_path, "r");
+
+	if (!f) {
+		fprintf(stderr, "f %s\n", file_path);
+		perror("fopen");
+		return 1;
+	}
+	if (fscanf(f, "%lu", val) != 1) {
+		perror("fscanf");
+		fclose(f);
+		return 1;
+	}
+	fclose(f);
+
+	return 0;
+}
+
+void *sys_mremap(void *old_address, unsigned long old_size,
+		 unsigned long new_size, int flags, void *new_address)
+{
+	return (void *)syscall(__NR_mremap, (unsigned long)old_address,
+			       old_size, new_size, flags,
+			       (unsigned long)new_address);
+}
+
+bool detect_huge_zeropage(void)
+{
+	int fd = open("/sys/kernel/mm/transparent_hugepage/use_zero_page",
+		      O_RDONLY);
+	bool enabled = 0;
+	char buf[15];
+	int ret;
+
+	if (fd < 0)
+		return 0;
+
+	ret = pread(fd, buf, sizeof(buf), 0);
+	if (ret > 0 && ret < sizeof(buf)) {
+		buf[ret] = 0;
+
+		if (strtoul(buf, NULL, 10) == 1)
+			enabled = 1;
+	}
+
+	close(fd);
+	return enabled;
+}
+
+long ksm_get_self_zero_pages(void)
+{
+	int proc_self_ksm_stat_fd;
+	char buf[200];
+	char *substr_ksm_zero;
+	size_t value_pos;
+	ssize_t read_size;
+
+	proc_self_ksm_stat_fd = open("/proc/self/ksm_stat", O_RDONLY);
+	if (proc_self_ksm_stat_fd < 0)
+		return -errno;
+
+	read_size = pread(proc_self_ksm_stat_fd, buf, sizeof(buf) - 1, 0);
+	close(proc_self_ksm_stat_fd);
+	if (read_size < 0)
+		return -errno;
+
+	buf[read_size] = 0;
+
+	substr_ksm_zero = strstr(buf, "ksm_zero_pages");
+	if (!substr_ksm_zero)
+		return 0;
+
+	value_pos = strcspn(substr_ksm_zero, "0123456789");
+	return strtol(substr_ksm_zero + value_pos, NULL, 10);
+}
+
+long ksm_get_self_merging_pages(void)
+{
+	int proc_self_ksm_merging_pages_fd;
+	char buf[10];
+	ssize_t ret;
+
+	proc_self_ksm_merging_pages_fd = open("/proc/self/ksm_merging_pages",
+						O_RDONLY);
+	if (proc_self_ksm_merging_pages_fd < 0)
+		return -errno;
+
+	ret = pread(proc_self_ksm_merging_pages_fd, buf, sizeof(buf) - 1, 0);
+	close(proc_self_ksm_merging_pages_fd);
+	if (ret <= 0)
+		return -errno;
+	buf[ret] = 0;
+
+	return strtol(buf, NULL, 10);
+}
+
+long ksm_get_full_scans(void)
+{
+	int ksm_full_scans_fd;
+	char buf[10];
+	ssize_t ret;
+
+	ksm_full_scans_fd = open("/sys/kernel/mm/ksm/full_scans", O_RDONLY);
+	if (ksm_full_scans_fd < 0)
+		return -errno;
+
+	ret = pread(ksm_full_scans_fd, buf, sizeof(buf) - 1, 0);
+	close(ksm_full_scans_fd);
+	if (ret <= 0)
+		return -errno;
+	buf[ret] = 0;
+
+	return strtol(buf, NULL, 10);
+}
+
+int ksm_use_zero_pages(void)
+{
+	int ksm_use_zero_pages_fd;
+	ssize_t ret;
+
+	ksm_use_zero_pages_fd = open("/sys/kernel/mm/ksm/use_zero_pages", O_RDWR);
+	if (ksm_use_zero_pages_fd < 0)
+		return -errno;
+
+	ret = write(ksm_use_zero_pages_fd, "1", 1);
+	close(ksm_use_zero_pages_fd);
+	return ret == 1 ? 0 : -errno;
+}
+
+int ksm_start(void)
+{
+	int ksm_fd;
+	ssize_t ret;
+	long start_scans, end_scans;
+
+	ksm_fd = open("/sys/kernel/mm/ksm/run", O_RDWR);
+	if (ksm_fd < 0)
+		return -errno;
+
+	/* Wait for two full scans such that any possible merging happened. */
+	start_scans = ksm_get_full_scans();
+	if (start_scans < 0) {
+		close(ksm_fd);
+		return start_scans;
+	}
+	ret = write(ksm_fd, "1", 1);
+	close(ksm_fd);
+	if (ret != 1)
+		return -errno;
+	do {
+		end_scans = ksm_get_full_scans();
+		if (end_scans < 0)
+			return end_scans;
+	} while (end_scans < start_scans + 2);
+
+	return 0;
+}
+
+int ksm_stop(void)
+{
+	int ksm_fd;
+	ssize_t ret;
+
+	ksm_fd = open("/sys/kernel/mm/ksm/run", O_RDWR);
+	if (ksm_fd < 0)
+		return -errno;
+
+	ret = write(ksm_fd, "2", 1);
+	close(ksm_fd);
+	return ret == 1 ? 0 : -errno;
+}
diff --git a/tools/testing/selftests/mm/vm_util.h b/tools/testing/selftests/mm/vm_util.h
new file mode 100644
index 000000000000..6ad32b1830f1
--- /dev/null
+++ b/tools/testing/selftests/mm/vm_util.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <stdint.h>
+#include <stdbool.h>
+#include <sys/mman.h>
+#include <err.h>
+#include <stdarg.h>
+#include <strings.h> /* ffsl() */
+#include <unistd.h> /* _SC_PAGESIZE */
+#include "kselftest.h"
+#include <linux/fs.h>
+
+#define BIT_ULL(nr)                   (1ULL << (nr))
+#define PM_SOFT_DIRTY                 BIT_ULL(55)
+#define PM_MMAP_EXCLUSIVE             BIT_ULL(56)
+#define PM_UFFD_WP                    BIT_ULL(57)
+#define PM_GUARD_REGION               BIT_ULL(58)
+#define PM_FILE                       BIT_ULL(61)
+#define PM_SWAP                       BIT_ULL(62)
+#define PM_PRESENT                    BIT_ULL(63)
+
+#define KPF_COMPOUND_HEAD             BIT_ULL(15)
+#define KPF_COMPOUND_TAIL             BIT_ULL(16)
+#define KPF_THP                       BIT_ULL(22)
+/*
+ * Ignore the checkpatch warning, we must read from x but don't want to do
+ * anything with it in order to trigger a read page fault. We therefore must use
+ * volatile to stop the compiler from optimising this away.
+ */
+#define FORCE_READ(x) (*(const volatile typeof(x) *)&(x))
+
+extern unsigned int __page_size;
+extern unsigned int __page_shift;
+
+/*
+ * Represents an open fd and PROCMAP_QUERY state for binary (via ioctl)
+ * /proc/$pid/[s]maps lookup.
+ */
+struct procmap_fd {
+	int fd;
+	struct procmap_query query;
+};
+
+static inline unsigned int psize(void)
+{
+	if (!__page_size)
+		__page_size = sysconf(_SC_PAGESIZE);
+	return __page_size;
+}
+
+static inline unsigned int pshift(void)
+{
+	if (!__page_shift)
+		__page_shift = (ffsl(psize()) - 1);
+	return __page_shift;
+}
+
+bool detect_huge_zeropage(void);
+
+/*
+ * Plan 9 FS has bugs (at least on QEMU) where certain operations fail with
+ * ENOENT on unlinked files. See
+ * https://gitlab.com/qemu-project/qemu/-/issues/103 for some info about such
+ * bugs. There are rumours of NFS implementations with similar bugs.
+ *
+ * Ideally, tests should just detect filesystems known to have such issues and
+ * bail early. But 9pfs has the additional "feature" that it causes fstatfs to
+ * pass through the f_type field from the host filesystem. To avoid having to
+ * scrape /proc/mounts or some other hackery, tests can call this function when
+ * it seems such a bug might have been encountered.
+ */
+static inline void skip_test_dodgy_fs(const char *op_name)
+{
+	ksft_test_result_skip("%s failed with ENOENT. Filesystem might be buggy (9pfs?)\n", op_name);
+}
+
+uint64_t pagemap_get_entry(int fd, char *start);
+bool pagemap_is_softdirty(int fd, char *start);
+bool pagemap_is_swapped(int fd, char *start);
+bool pagemap_is_populated(int fd, char *start);
+unsigned long pagemap_get_pfn(int fd, char *start);
+void clear_softdirty(void);
+bool check_for_pattern(FILE *fp, const char *pattern, char *buf, size_t len);
+uint64_t read_pmd_pagesize(void);
+unsigned long rss_anon(void);
+bool check_huge_anon(void *addr, int nr_hpages, uint64_t hpage_size);
+bool check_huge_file(void *addr, int nr_hpages, uint64_t hpage_size);
+bool check_huge_shmem(void *addr, int nr_hpages, uint64_t hpage_size);
+int64_t allocate_transhuge(void *ptr, int pagemap_fd);
+unsigned long default_huge_page_size(void);
+int detect_hugetlb_page_sizes(size_t sizes[], int max);
+int pageflags_get(unsigned long pfn, int kpageflags_fd, uint64_t *flags);
+
+int uffd_register(int uffd, void *addr, uint64_t len,
+		  bool miss, bool wp, bool minor);
+int uffd_unregister(int uffd, void *addr, uint64_t len);
+int uffd_register_with_ioctls(int uffd, void *addr, uint64_t len,
+			      bool miss, bool wp, bool minor, uint64_t *ioctls);
+unsigned long get_free_hugepages(void);
+bool check_vmflag_io(void *addr);
+bool check_vmflag_pfnmap(void *addr);
+bool check_vmflag_guard(void *addr);
+int open_procmap(pid_t pid, struct procmap_fd *procmap_out);
+int query_procmap(struct procmap_fd *procmap);
+bool find_vma_procmap(struct procmap_fd *procmap, void *address);
+int close_procmap(struct procmap_fd *procmap);
+int write_sysfs(const char *file_path, unsigned long val);
+int read_sysfs(const char *file_path, unsigned long *val);
+bool softdirty_supported(void);
+
+static inline int open_self_procmap(struct procmap_fd *procmap_out)
+{
+	pid_t pid = getpid();
+
+	return open_procmap(pid, procmap_out);
+}
+
+/* These helpers need to be inline to match the kselftest.h idiom. */
+static char test_name[1024];
+
+static inline void log_test_start(const char *name, ...)
+{
+	va_list args;
+	va_start(args, name);
+
+	vsnprintf(test_name, sizeof(test_name), name, args);
+	ksft_print_msg("[RUN] %s\n", test_name);
+
+	va_end(args);
+}
+
+static inline void log_test_result(int result)
+{
+	ksft_test_result_report(result, "%s\n", test_name);
+}
+
+static inline int sz2ord(size_t size, size_t pagesize)
+{
+	return __builtin_ctzll(size / pagesize);
+}
+
+void *sys_mremap(void *old_address, unsigned long old_size,
+		 unsigned long new_size, int flags, void *new_address);
+
+long ksm_get_self_zero_pages(void);
+long ksm_get_self_merging_pages(void);
+long ksm_get_full_scans(void);
+int ksm_use_zero_pages(void);
+int ksm_start(void);
+int ksm_stop(void);
+
+/*
+ * On ppc64 this will only work with radix 2M hugepage size
+ */
+#define HPAGE_SHIFT 21
+#define HPAGE_SIZE (1 << HPAGE_SHIFT)
+
+#define PAGEMAP_PRESENT(ent)	(((ent) & (1ull << 63)) != 0)
+#define PAGEMAP_PFN(ent)	((ent) & ((1ull << 55) - 1))
diff --git a/tools/testing/selftests/mm/write_hugetlb_memory.sh b/tools/testing/selftests/mm/write_hugetlb_memory.sh
new file mode 100755
index 000000000000..3d2d2eb9d6ff
--- /dev/null
+++ b/tools/testing/selftests/mm/write_hugetlb_memory.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+
+size=$1
+populate=$2
+write=$3
+cgroup=$4
+path=$5
+method=$6
+private=$7
+want_sleep=$8
+reserve=$9
+
+echo "Putting task in cgroup '$cgroup'"
+echo $$ > ${cgroup_path:-/dev/cgroup/memory}/"$cgroup"/cgroup.procs
+
+echo "Method is $method"
+
+set +e
+./write_to_hugetlbfs -p "$path" -s "$size" "$write" "$populate" -m "$method" \
+      "$private" "$want_sleep" "$reserve"
diff --git a/tools/testing/selftests/mm/write_to_hugetlbfs.c b/tools/testing/selftests/mm/write_to_hugetlbfs.c
new file mode 100644
index 000000000000..34c91f7e6128
--- /dev/null
+++ b/tools/testing/selftests/mm/write_to_hugetlbfs.c
@@ -0,0 +1,243 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This program reserves and uses hugetlb memory, supporting a bunch of
+ * scenarios needed by the charged_reserved_hugetlb.sh test.
+ */
+
+#include <err.h>
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+/* Global definitions. */
+enum method {
+	HUGETLBFS,
+	MMAP_MAP_HUGETLB,
+	SHM,
+	MAX_METHOD
+};
+
+
+/* Global variables. */
+static const char *self;
+static int *shmaddr;
+static int shmid;
+
+/*
+ * Show usage and exit.
+ */
+static void exit_usage(void)
+{
+	printf("Usage: %s -p <path to hugetlbfs file> -s <size to map> "
+	       "[-m <0=hugetlbfs | 1=mmap(MAP_HUGETLB)>] [-l] [-r] "
+	       "[-o] [-w] [-n]\n",
+	       self);
+	exit(EXIT_FAILURE);
+}
+
+void sig_handler(int signo)
+{
+	printf("Received %d.\n", signo);
+	if (signo == SIGINT) {
+		if (shmaddr) {
+			printf("Deleting the memory\n");
+			if (shmdt((const void *)shmaddr) != 0) {
+				perror("Detach failure");
+				shmctl(shmid, IPC_RMID, NULL);
+				exit(4);
+			}
+
+			shmctl(shmid, IPC_RMID, NULL);
+			printf("Done deleting the memory\n");
+		}
+	}
+	exit(2);
+}
+
+int main(int argc, char **argv)
+{
+	int fd = 0;
+	int key = 0;
+	int *ptr = NULL;
+	int c = 0;
+	int size = 0;
+	char path[256] = "";
+	enum method method = MAX_METHOD;
+	int want_sleep = 0, private = 0;
+	int populate = 0;
+	int write = 0;
+	int reserve = 1;
+
+	if (signal(SIGINT, sig_handler) == SIG_ERR)
+		err(1, "\ncan't catch SIGINT\n");
+
+	/* Parse command-line arguments. */
+	setvbuf(stdout, NULL, _IONBF, 0);
+	self = argv[0];
+
+	while ((c = getopt(argc, argv, "s:p:m:owlrn")) != -1) {
+		switch (c) {
+		case 's':
+			size = atoi(optarg);
+			break;
+		case 'p':
+			strncpy(path, optarg, sizeof(path) - 1);
+			break;
+		case 'm':
+			if (atoi(optarg) >= MAX_METHOD) {
+				errno = EINVAL;
+				perror("Invalid -m.");
+				exit_usage();
+			}
+			method = atoi(optarg);
+			break;
+		case 'o':
+			populate = 1;
+			break;
+		case 'w':
+			write = 1;
+			break;
+		case 'l':
+			want_sleep = 1;
+			break;
+		case 'r':
+		    private
+			= 1;
+			break;
+		case 'n':
+			reserve = 0;
+			break;
+		default:
+			errno = EINVAL;
+			perror("Invalid arg");
+			exit_usage();
+		}
+	}
+
+	if (strncmp(path, "", sizeof(path)) != 0) {
+		printf("Writing to this path: %s\n", path);
+	} else {
+		errno = EINVAL;
+		perror("path not found");
+		exit_usage();
+	}
+
+	if (size != 0) {
+		printf("Writing this size: %d\n", size);
+	} else {
+		errno = EINVAL;
+		perror("size not found");
+		exit_usage();
+	}
+
+	if (!populate)
+		printf("Not populating.\n");
+	else
+		printf("Populating.\n");
+
+	if (!write)
+		printf("Not writing to memory.\n");
+
+	if (method == MAX_METHOD) {
+		errno = EINVAL;
+		perror("-m Invalid");
+		exit_usage();
+	} else
+		printf("Using method=%d\n", method);
+
+	if (!private)
+		printf("Shared mapping.\n");
+	else
+		printf("Private mapping.\n");
+
+	if (!reserve)
+		printf("NO_RESERVE mapping.\n");
+	else
+		printf("RESERVE mapping.\n");
+
+	switch (method) {
+	case HUGETLBFS:
+		printf("Allocating using HUGETLBFS.\n");
+		fd = open(path, O_CREAT | O_RDWR, 0777);
+		if (fd == -1)
+			err(1, "Failed to open file.");
+
+		ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			   (private ? MAP_PRIVATE : MAP_SHARED) |
+				   (populate ? MAP_POPULATE : 0) |
+				   (reserve ? 0 : MAP_NORESERVE),
+			   fd, 0);
+
+		if (ptr == MAP_FAILED) {
+			close(fd);
+			err(1, "Error mapping the file");
+		}
+		break;
+	case MMAP_MAP_HUGETLB:
+		printf("Allocating using MAP_HUGETLB.\n");
+		ptr = mmap(NULL, size, PROT_READ | PROT_WRITE,
+			   (private ? (MAP_PRIVATE | MAP_ANONYMOUS) :
+				      MAP_SHARED) |
+				   MAP_HUGETLB | (populate ? MAP_POPULATE : 0) |
+				   (reserve ? 0 : MAP_NORESERVE),
+			   -1, 0);
+
+		if (ptr == MAP_FAILED)
+			err(1, "mmap");
+
+		printf("Returned address is %p\n", ptr);
+		break;
+	case SHM:
+		printf("Allocating using SHM.\n");
+		shmid = shmget(key, size,
+			       SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
+		if (shmid < 0) {
+			shmid = shmget(++key, size,
+				       SHM_HUGETLB | IPC_CREAT | SHM_R | SHM_W);
+			if (shmid < 0)
+				err(1, "shmget");
+		}
+		printf("shmid: 0x%x, shmget key:%d\n", shmid, key);
+
+		ptr = shmat(shmid, NULL, 0);
+		if (ptr == (int *)-1) {
+			perror("Shared memory attach failure");
+			shmctl(shmid, IPC_RMID, NULL);
+			exit(2);
+		}
+		shmaddr = ptr;
+		printf("shmaddr: %p\n", shmaddr);
+
+		break;
+	default:
+		errno = EINVAL;
+		err(1, "Invalid method.");
+	}
+
+	if (write) {
+		printf("Writing to memory.\n");
+		memset(ptr, 1, size);
+	}
+
+	if (want_sleep) {
+		/* Signal to caller that we're done. */
+		printf("DONE\n");
+
+		/* Hold memory until external kill signal is delivered. */
+		while (1)
+			sleep(100);
+	}
+
+	if (method == HUGETLBFS)
+		close(fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/module/Makefile b/tools/testing/selftests/module/Makefile
new file mode 100644
index 000000000000..6132d7ddb08b
--- /dev/null
+++ b/tools/testing/selftests/module/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Makefile for module loading selftests
+
+# No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
+all:
+
+TEST_PROGS := find_symbol.sh
+
+include ../lib.mk
+
+# Nothing to clean up.
+clean:
diff --git a/tools/testing/selftests/module/config b/tools/testing/selftests/module/config
new file mode 100644
index 000000000000..b0c206b1ad47
--- /dev/null
+++ b/tools/testing/selftests/module/config
@@ -0,0 +1,3 @@
+CONFIG_TEST_RUNTIME=y
+CONFIG_TEST_RUNTIME_MODULE=y
+CONFIG_TEST_KALLSYMS=m
diff --git a/tools/testing/selftests/module/find_symbol.sh b/tools/testing/selftests/module/find_symbol.sh
new file mode 100755
index 000000000000..2c56805c9b6e
--- /dev/null
+++ b/tools/testing/selftests/module/find_symbol.sh
@@ -0,0 +1,81 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
+# Copyright (C) 2023 Luis Chamberlain <mcgrof@kernel.org>
+#
+# This is a stress test script for kallsyms through find_symbol()
+
+set -e
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+test_reqs()
+{
+	if ! which modprobe 2> /dev/null > /dev/null; then
+		echo "$0: You need modprobe installed" >&2
+		exit $ksft_skip
+	fi
+
+	if ! which kmod 2> /dev/null > /dev/null; then
+		echo "$0: You need kmod installed" >&2
+		exit $ksft_skip
+	fi
+
+	if ! which perf 2> /dev/null > /dev/null; then
+		echo "$0: You need perf installed" >&2
+		exit $ksft_skip
+	fi
+
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $msg must be run as root >&2
+		exit $ksft_skip
+	fi
+}
+
+load_mod()
+{
+	local STATS="-e duration_time"
+	STATS="$STATS -e user_time"
+	STATS="$STATS -e system_time"
+	STATS="$STATS -e page-faults"
+	local MOD=$1
+
+	local ARCH="$(uname -m)"
+	case "${ARCH}" in
+	x86_64)
+		perf stat $STATS $MODPROBE $MOD
+		;;
+	*)
+		time $MODPROBE $MOD
+		exit 1
+		;;
+	esac
+}
+
+remove_all()
+{
+	$MODPROBE -r test_kallsyms_b
+	for i in a b c d; do
+		$MODPROBE -r test_kallsyms_$i
+	done
+}
+test_reqs
+
+MODPROBE=$(</proc/sys/kernel/modprobe)
+
+remove_all
+load_mod test_kallsyms_b
+remove_all
+
+# Now pollute the namespace
+$MODPROBE test_kallsyms_c
+load_mod test_kallsyms_b
+
+# Now pollute the namespace with twice the number of symbols than the last time
+remove_all
+$MODPROBE test_kallsyms_c
+$MODPROBE test_kallsyms_d
+load_mod test_kallsyms_b
+
+exit 0
diff --git a/tools/testing/selftests/mount/.gitignore b/tools/testing/selftests/mount/.gitignore
index 856ad4107eb3..17f2d8415162 100644
--- a/tools/testing/selftests/mount/.gitignore
+++ b/tools/testing/selftests/mount/.gitignore
@@ -1 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 unprivileged-remount-test
+nosymfollow-test
diff --git a/tools/testing/selftests/mount/Makefile b/tools/testing/selftests/mount/Makefile
index 5e35c9c50b72..2d9454841644 100644
--- a/tools/testing/selftests/mount/Makefile
+++ b/tools/testing/selftests/mount/Makefile
@@ -1,21 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for mount selftests.
 CFLAGS = -Wall \
          -O2
-all: unprivileged-remount-test
 
-unprivileged-remount-test: unprivileged-remount-test.c
-	$(CC) $(CFLAGS) unprivileged-remount-test.c -o unprivileged-remount-test
+TEST_PROGS := run_unprivileged_remount.sh run_nosymfollow.sh
+TEST_GEN_FILES := unprivileged-remount-test nosymfollow-test
 
 include ../lib.mk
-
-TEST_PROGS := unprivileged-remount-test
-override RUN_TESTS := if [ -f /proc/self/uid_map ] ; \
-		      then	\
-				./unprivileged-remount-test ; \
-		      else	\
-				echo "WARN: No /proc/self/uid_map exist, test skipped." ; \
-		      fi
-override EMIT_TESTS := echo "$(RUN_TESTS)"
-
-clean:
-	rm -f unprivileged-remount-test
diff --git a/tools/testing/selftests/mount/config b/tools/testing/selftests/mount/config
new file mode 100644
index 000000000000..416bd53ce982
--- /dev/null
+++ b/tools/testing/selftests/mount/config
@@ -0,0 +1 @@
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/mount/nosymfollow-test.c b/tools/testing/selftests/mount/nosymfollow-test.c
new file mode 100644
index 000000000000..650d6d80a1d2
--- /dev/null
+++ b/tools/testing/selftests/mount/nosymfollow-test.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/vfs.h>
+#include <unistd.h>
+
+#ifndef MS_NOSYMFOLLOW
+# define MS_NOSYMFOLLOW 256     /* Do not follow symlinks */
+#endif
+
+#ifndef ST_NOSYMFOLLOW
+# define ST_NOSYMFOLLOW 0x2000  /* Do not follow symlinks */
+#endif
+
+#define DATA "/tmp/data"
+#define LINK "/tmp/symlink"
+#define TMP  "/tmp"
+
+static void die(char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+static void vmaybe_write_file(bool enoent_ok, char *filename, char *fmt,
+		va_list ap)
+{
+	ssize_t written;
+	char buf[4096];
+	int buf_len;
+	int fd;
+
+	buf_len = vsnprintf(buf, sizeof(buf), fmt, ap);
+	if (buf_len < 0)
+		die("vsnprintf failed: %s\n", strerror(errno));
+
+	if (buf_len >= sizeof(buf))
+		die("vsnprintf output truncated\n");
+
+	fd = open(filename, O_WRONLY);
+	if (fd < 0) {
+		if ((errno == ENOENT) && enoent_ok)
+			return;
+		die("open of %s failed: %s\n", filename, strerror(errno));
+	}
+
+	written = write(fd, buf, buf_len);
+	if (written != buf_len) {
+		if (written >= 0) {
+			die("short write to %s\n", filename);
+		} else {
+			die("write to %s failed: %s\n",
+				filename, strerror(errno));
+		}
+	}
+
+	if (close(fd) != 0)
+		die("close of %s failed: %s\n", filename, strerror(errno));
+}
+
+static void maybe_write_file(char *filename, char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vmaybe_write_file(true, filename, fmt, ap);
+	va_end(ap);
+}
+
+static void write_file(char *filename, char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vmaybe_write_file(false, filename, fmt, ap);
+	va_end(ap);
+}
+
+static void create_and_enter_ns(void)
+{
+	uid_t uid = getuid();
+	gid_t gid = getgid();
+
+	if (unshare(CLONE_NEWUSER) != 0)
+		die("unshare(CLONE_NEWUSER) failed: %s\n", strerror(errno));
+
+	maybe_write_file("/proc/self/setgroups", "deny");
+	write_file("/proc/self/uid_map", "0 %d 1", uid);
+	write_file("/proc/self/gid_map", "0 %d 1", gid);
+
+	if (setgid(0) != 0)
+		die("setgid(0) failed %s\n", strerror(errno));
+	if (setuid(0) != 0)
+		die("setuid(0) failed %s\n", strerror(errno));
+
+	if (unshare(CLONE_NEWNS) != 0)
+		die("unshare(CLONE_NEWNS) failed: %s\n", strerror(errno));
+}
+
+static void setup_symlink(void)
+{
+	int data, err;
+
+	data = creat(DATA, O_RDWR);
+	if (data < 0)
+		die("creat failed: %s\n", strerror(errno));
+
+	err = symlink(DATA, LINK);
+	if (err < 0)
+		die("symlink failed: %s\n", strerror(errno));
+
+	if (close(data) != 0)
+		die("close of %s failed: %s\n", DATA, strerror(errno));
+}
+
+static void test_link_traversal(bool nosymfollow)
+{
+	int link;
+
+	link = open(LINK, 0, O_RDWR);
+	if (nosymfollow) {
+		if ((link != -1 || errno != ELOOP)) {
+			die("link traversal unexpected result: %d, %s\n",
+					link, strerror(errno));
+		}
+	} else {
+		if (link < 0)
+			die("link traversal failed: %s\n", strerror(errno));
+
+		if (close(link) != 0)
+			die("close of link failed: %s\n", strerror(errno));
+	}
+}
+
+static void test_readlink(void)
+{
+	char buf[4096];
+	ssize_t ret;
+
+	bzero(buf, sizeof(buf));
+
+	ret = readlink(LINK, buf, sizeof(buf));
+	if (ret < 0)
+		die("readlink failed: %s\n", strerror(errno));
+	if (strcmp(buf, DATA) != 0)
+		die("readlink strcmp failed: '%s' '%s'\n", buf, DATA);
+}
+
+static void test_realpath(void)
+{
+	char *path = realpath(LINK, NULL);
+
+	if (!path)
+		die("realpath failed: %s\n", strerror(errno));
+	if (strcmp(path, DATA) != 0)
+		die("realpath strcmp failed\n");
+
+	free(path);
+}
+
+static void test_statfs(bool nosymfollow)
+{
+	struct statfs buf;
+	int ret;
+
+	ret = statfs(TMP, &buf);
+	if (ret)
+		die("statfs failed: %s\n", strerror(errno));
+
+	if (nosymfollow) {
+		if ((buf.f_flags & ST_NOSYMFOLLOW) == 0)
+			die("ST_NOSYMFOLLOW not set on %s\n", TMP);
+	} else {
+		if ((buf.f_flags & ST_NOSYMFOLLOW) != 0)
+			die("ST_NOSYMFOLLOW set on %s\n", TMP);
+	}
+}
+
+static void run_tests(bool nosymfollow)
+{
+	test_link_traversal(nosymfollow);
+	test_readlink();
+	test_realpath();
+	test_statfs(nosymfollow);
+}
+
+int main(int argc, char **argv)
+{
+	create_and_enter_ns();
+
+	if (mount("testing", TMP, "ramfs", 0, NULL) != 0)
+		die("mount failed: %s\n", strerror(errno));
+
+	setup_symlink();
+	run_tests(false);
+
+	if (mount("testing", TMP, "ramfs", MS_REMOUNT|MS_NOSYMFOLLOW, NULL) != 0)
+		die("remount failed: %s\n", strerror(errno));
+
+	run_tests(true);
+
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/mount/run_nosymfollow.sh b/tools/testing/selftests/mount/run_nosymfollow.sh
new file mode 100755
index 000000000000..5fbbf03043a2
--- /dev/null
+++ b/tools/testing/selftests/mount/run_nosymfollow.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+./nosymfollow-test
diff --git a/tools/testing/selftests/mount/run_unprivileged_remount.sh b/tools/testing/selftests/mount/run_unprivileged_remount.sh
new file mode 100755
index 000000000000..4ab8f507dcba
--- /dev/null
+++ b/tools/testing/selftests/mount/run_unprivileged_remount.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# Run mount selftests
+if [ -f /proc/self/uid_map ] ; then
+	./unprivileged-remount-test ;
+else
+	echo "WARN: No /proc/self/uid_map exist, test skipped." ;
+	exit $ksft_skip
+fi
diff --git a/tools/testing/selftests/mount/unprivileged-remount-test.c b/tools/testing/selftests/mount/unprivileged-remount-test.c
index 517785052f1c..d2917054fe3a 100644
--- a/tools/testing/selftests/mount/unprivileged-remount-test.c
+++ b/tools/testing/selftests/mount/unprivileged-remount-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sched.h>
 #include <stdio.h>
@@ -203,7 +204,7 @@ bool test_unpriv_remount(const char *fstype, const char *mount_options,
 		if (!WIFEXITED(status)) {
 			die("child did not terminate cleanly\n");
 		}
-		return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false;
+		return WEXITSTATUS(status) == EXIT_SUCCESS;
 	}
 
 	create_and_enter_userns();
@@ -281,7 +282,7 @@ static bool test_priv_mount_unpriv_remount(void)
 		if (!WIFEXITED(status)) {
 			die("child did not terminate cleanly\n");
 		}
-		return WEXITSTATUS(status) == EXIT_SUCCESS ? true : false;
+		return WEXITSTATUS(status) == EXIT_SUCCESS;
 	}
 
 	orig_mnt_flags = read_mnt_flags(orig_path);
diff --git a/tools/testing/selftests/mount_setattr/.gitignore b/tools/testing/selftests/mount_setattr/.gitignore
new file mode 100644
index 000000000000..5f74d8488472
--- /dev/null
+++ b/tools/testing/selftests/mount_setattr/.gitignore
@@ -0,0 +1 @@
+mount_setattr_test
diff --git a/tools/testing/selftests/mount_setattr/Makefile b/tools/testing/selftests/mount_setattr/Makefile
new file mode 100644
index 000000000000..4d4f810cdf2c
--- /dev/null
+++ b/tools/testing/selftests/mount_setattr/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for mount selftests.
+CFLAGS = -g $(KHDR_INCLUDES) -Wall -O2 -pthread
+
+LOCAL_HDRS += ../filesystems/wrappers.h
+
+TEST_GEN_PROGS := mount_setattr_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/mount_setattr/config b/tools/testing/selftests/mount_setattr/config
new file mode 100644
index 000000000000..416bd53ce982
--- /dev/null
+++ b/tools/testing/selftests/mount_setattr/config
@@ -0,0 +1 @@
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/mount_setattr/mount_setattr_test.c b/tools/testing/selftests/mount_setattr/mount_setattr_test.c
new file mode 100644
index 000000000000..7aec3ae82a44
--- /dev/null
+++ b/tools/testing/selftests/mount_setattr/mount_setattr_test.c
@@ -0,0 +1,2140 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdio.h>
+#include <errno.h>
+#include <pthread.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <sys/vfs.h>
+#include <sys/statvfs.h>
+#include <sys/sysinfo.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <linux/mount.h>
+
+#include "../filesystems/wrappers.h"
+#include "kselftest_harness.h"
+
+#ifndef CLONE_NEWNS
+#define CLONE_NEWNS 0x00020000
+#endif
+
+#ifndef CLONE_NEWUSER
+#define CLONE_NEWUSER 0x10000000
+#endif
+
+#ifndef MS_REC
+#define MS_REC 16384
+#endif
+
+#ifndef MS_RELATIME
+#define MS_RELATIME (1 << 21)
+#endif
+
+#ifndef MS_STRICTATIME
+#define MS_STRICTATIME (1 << 24)
+#endif
+
+#ifndef MOUNT_ATTR_RDONLY
+#define MOUNT_ATTR_RDONLY 0x00000001
+#endif
+
+#ifndef MOUNT_ATTR_NOSUID
+#define MOUNT_ATTR_NOSUID 0x00000002
+#endif
+
+#ifndef MOUNT_ATTR_NOEXEC
+#define MOUNT_ATTR_NOEXEC 0x00000008
+#endif
+
+#ifndef MOUNT_ATTR_NODIRATIME
+#define MOUNT_ATTR_NODIRATIME 0x00000080
+#endif
+
+#ifndef MOUNT_ATTR__ATIME
+#define MOUNT_ATTR__ATIME 0x00000070
+#endif
+
+#ifndef MOUNT_ATTR_RELATIME
+#define MOUNT_ATTR_RELATIME 0x00000000
+#endif
+
+#ifndef MOUNT_ATTR_NOATIME
+#define MOUNT_ATTR_NOATIME 0x00000010
+#endif
+
+#ifndef MOUNT_ATTR_STRICTATIME
+#define MOUNT_ATTR_STRICTATIME 0x00000020
+#endif
+
+#ifndef AT_RECURSIVE
+#define AT_RECURSIVE 0x8000
+#endif
+
+#ifndef MS_SHARED
+#define MS_SHARED (1 << 20)
+#endif
+
+#define DEFAULT_THREADS 4
+#define ptr_to_int(p) ((int)((intptr_t)(p)))
+#define int_to_ptr(u) ((void *)((intptr_t)(u)))
+
+#ifndef __NR_mount_setattr
+	#if defined __alpha__
+		#define __NR_mount_setattr 552
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_mount_setattr (442 + 4000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_mount_setattr (442 + 6000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_mount_setattr (442 + 5000)
+		#endif
+	#elif defined __ia64__
+		#define __NR_mount_setattr (442 + 1024)
+	#else
+		#define __NR_mount_setattr 442
+	#endif
+#endif
+
+#ifndef __NR_open_tree_attr
+	#if defined __alpha__
+		#define __NR_open_tree_attr 577
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_open_tree_attr (467 + 4000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_open_tree_attr (467 + 6000)
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_open_tree_attr (467 + 5000)
+		#endif
+	#elif defined __ia64__
+		#define __NR_open_tree_attr (467 + 1024)
+	#else
+		#define __NR_open_tree_attr 467
+	#endif
+#endif
+
+#ifndef MOUNT_ATTR_IDMAP
+#define MOUNT_ATTR_IDMAP 0x00100000
+#endif
+
+#ifndef MOUNT_ATTR_NOSYMFOLLOW
+#define MOUNT_ATTR_NOSYMFOLLOW 0x00200000
+#endif
+
+static inline int sys_mount_setattr(int dfd, const char *path, unsigned int flags,
+				    struct mount_attr *attr, size_t size)
+{
+	return syscall(__NR_mount_setattr, dfd, path, flags, attr, size);
+}
+
+static inline int sys_open_tree_attr(int dfd, const char *path, unsigned int flags,
+				     struct mount_attr *attr, size_t size)
+{
+	return syscall(__NR_open_tree_attr, dfd, path, flags, attr, size);
+}
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static int write_file(const char *path, const void *buf, size_t count)
+{
+	int fd;
+	ssize_t ret;
+
+	fd = open(path, O_WRONLY | O_CLOEXEC | O_NOCTTY | O_NOFOLLOW);
+	if (fd < 0)
+		return -1;
+
+	ret = write_nointr(fd, buf, count);
+	close(fd);
+	if (ret < 0 || (size_t)ret != count)
+		return -1;
+
+	return 0;
+}
+
+static int create_and_enter_userns(void)
+{
+	uid_t uid;
+	gid_t gid;
+	char map[100];
+
+	uid = getuid();
+	gid = getgid();
+
+	if (unshare(CLONE_NEWUSER))
+		return -1;
+
+	if (write_file("/proc/self/setgroups", "deny", sizeof("deny") - 1) &&
+	    errno != ENOENT)
+		return -1;
+
+	snprintf(map, sizeof(map), "0 %d 1", uid);
+	if (write_file("/proc/self/uid_map", map, strlen(map)))
+		return -1;
+
+
+	snprintf(map, sizeof(map), "0 %d 1", gid);
+	if (write_file("/proc/self/gid_map", map, strlen(map)))
+		return -1;
+
+	if (setgid(0))
+		return -1;
+
+	if (setuid(0))
+		return -1;
+
+	return 0;
+}
+
+static int prepare_unpriv_mountns(void)
+{
+	if (create_and_enter_userns())
+		return -1;
+
+	if (unshare(CLONE_NEWNS))
+		return -1;
+
+	if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0))
+		return -1;
+
+	return 0;
+}
+
+#ifndef ST_NOSYMFOLLOW
+#define ST_NOSYMFOLLOW 0x2000 /* do not follow symlinks */
+#endif
+
+static int read_mnt_flags(const char *path)
+{
+	int ret;
+	struct statvfs stat;
+	unsigned int mnt_flags;
+
+	ret = statvfs(path, &stat);
+	if (ret != 0)
+		return -EINVAL;
+
+	if (stat.f_flag & ~(ST_RDONLY | ST_NOSUID | ST_NODEV | ST_NOEXEC |
+			    ST_NOATIME | ST_NODIRATIME | ST_RELATIME |
+			    ST_SYNCHRONOUS | ST_MANDLOCK | ST_NOSYMFOLLOW))
+		return -EINVAL;
+
+	mnt_flags = 0;
+	if (stat.f_flag & ST_RDONLY)
+		mnt_flags |= MS_RDONLY;
+	if (stat.f_flag & ST_NOSUID)
+		mnt_flags |= MS_NOSUID;
+	if (stat.f_flag & ST_NODEV)
+		mnt_flags |= MS_NODEV;
+	if (stat.f_flag & ST_NOEXEC)
+		mnt_flags |= MS_NOEXEC;
+	if (stat.f_flag & ST_NOATIME)
+		mnt_flags |= MS_NOATIME;
+	if (stat.f_flag & ST_NODIRATIME)
+		mnt_flags |= MS_NODIRATIME;
+	if (stat.f_flag & ST_RELATIME)
+		mnt_flags |= MS_RELATIME;
+	if (stat.f_flag & ST_SYNCHRONOUS)
+		mnt_flags |= MS_SYNCHRONOUS;
+	if (stat.f_flag & ST_MANDLOCK)
+		mnt_flags |= ST_MANDLOCK;
+	if (stat.f_flag & ST_NOSYMFOLLOW)
+		mnt_flags |= ST_NOSYMFOLLOW;
+
+	return mnt_flags;
+}
+
+static char *get_field(char *src, int nfields)
+{
+	int i;
+	char *p = src;
+
+	for (i = 0; i < nfields; i++) {
+		while (*p && *p != ' ' && *p != '\t')
+			p++;
+
+		if (!*p)
+			break;
+
+		p++;
+	}
+
+	return p;
+}
+
+static void null_endofword(char *word)
+{
+	while (*word && *word != ' ' && *word != '\t')
+		word++;
+	*word = '\0';
+}
+
+static bool is_shared_mount(const char *path)
+{
+	size_t len = 0;
+	char *line = NULL;
+	FILE *f = NULL;
+
+	f = fopen("/proc/self/mountinfo", "re");
+	if (!f)
+		return false;
+
+	while (getline(&line, &len, f) != -1) {
+		char *opts, *target;
+
+		target = get_field(line, 4);
+		if (!target)
+			continue;
+
+		opts = get_field(target, 2);
+		if (!opts)
+			continue;
+
+		null_endofword(target);
+
+		if (strcmp(target, path) != 0)
+			continue;
+
+		null_endofword(opts);
+		if (strstr(opts, "shared:"))
+			return true;
+	}
+
+	free(line);
+	fclose(f);
+
+	return false;
+}
+
+static void *mount_setattr_thread(void *data)
+{
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_RDONLY | MOUNT_ATTR_NOSUID,
+		.attr_clr	= 0,
+		.propagation	= MS_SHARED,
+	};
+
+	if (sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)))
+		pthread_exit(int_to_ptr(-1));
+
+	pthread_exit(int_to_ptr(0));
+}
+
+/* Attempt to de-conflict with the selftests tree. */
+#ifndef SKIP
+#define SKIP(s, ...)	XFAIL(s, ##__VA_ARGS__)
+#endif
+
+static bool mount_setattr_supported(void)
+{
+	int ret;
+
+	ret = sys_mount_setattr(-EBADF, "", AT_EMPTY_PATH, NULL, 0);
+	if (ret < 0 && errno == ENOSYS)
+		return false;
+
+	return true;
+}
+
+FIXTURE(mount_setattr) {
+};
+
+#define NOSYMFOLLOW_TARGET "/mnt/A/AA/data"
+#define NOSYMFOLLOW_SYMLINK "/mnt/A/AA/symlink"
+
+FIXTURE_SETUP(mount_setattr)
+{
+	int fd = -EBADF;
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_EQ(prepare_unpriv_mountns(), 0);
+
+	(void)umount2("/mnt", MNT_DETACH);
+	(void)umount2("/tmp", MNT_DETACH);
+
+	ASSERT_EQ(mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/tmp/B", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/tmp/B/BB", 0777), 0);
+
+	ASSERT_EQ(mkdir("/tmp/target1", 0777), 0);
+
+	ASSERT_EQ(mkdir("/tmp/target2", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B/BB", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/mnt/A", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt/A", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/mnt/A/AA", 0777), 0);
+
+	ASSERT_EQ(mount("/tmp", "/mnt/A/AA", NULL, MS_BIND | MS_REC, NULL), 0);
+
+	ASSERT_EQ(mkdir("/mnt/B", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt/B", "ramfs",
+			MS_NOATIME | MS_NODEV | MS_NOSUID, 0), 0);
+
+	ASSERT_EQ(mkdir("/mnt/B/BB", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B/BB", "devpts",
+			MS_RELATIME | MS_NOEXEC | MS_RDONLY, 0), 0);
+
+	fd = creat(NOSYMFOLLOW_TARGET, O_RDWR | O_CLOEXEC);
+	ASSERT_GT(fd, 0);
+	ASSERT_EQ(symlink(NOSYMFOLLOW_TARGET, NOSYMFOLLOW_SYMLINK), 0);
+	ASSERT_EQ(close(fd), 0);
+}
+
+FIXTURE_TEARDOWN(mount_setattr)
+{
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	(void)umount2("/mnt/A", MNT_DETACH);
+	(void)umount2("/tmp", MNT_DETACH);
+}
+
+TEST_F(mount_setattr, invalid_attributes)
+{
+	struct mount_attr invalid_attr = {
+		.attr_set = (1U << 31),
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr)), 0);
+
+	invalid_attr.attr_set	= 0;
+	invalid_attr.attr_clr	= (1U << 31);
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr)), 0);
+
+	invalid_attr.attr_clr		= 0;
+	invalid_attr.propagation	= (1U << 31);
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr)), 0);
+
+	invalid_attr.attr_set		= (1U << 31);
+	invalid_attr.attr_clr		= (1U << 31);
+	invalid_attr.propagation	= (1U << 31);
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr)), 0);
+
+	ASSERT_NE(sys_mount_setattr(-1, "mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr)), 0);
+}
+
+TEST_F(mount_setattr, extensibility)
+{
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	char *s = "dummy";
+	struct mount_attr invalid_attr = {};
+	struct mount_attr_large {
+		struct mount_attr attr1;
+		struct mount_attr attr2;
+		struct mount_attr attr3;
+	} large_attr = {};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, NULL,
+				    sizeof(invalid_attr)), 0);
+	ASSERT_EQ(errno, EFAULT);
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, (void *)s,
+				    sizeof(invalid_attr)), 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr, 0), 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr) / 2), 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &invalid_attr,
+				    sizeof(invalid_attr) / 2), 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE,
+				    (void *)&large_attr, sizeof(large_attr)), 0);
+
+	large_attr.attr3.attr_set = MOUNT_ATTR_RDONLY;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE,
+				    (void *)&large_attr, sizeof(large_attr)), 0);
+
+	large_attr.attr3.attr_set = 0;
+	large_attr.attr1.attr_set = MOUNT_ATTR_RDONLY;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE,
+				    (void *)&large_attr, sizeof(large_attr)), 0);
+
+	expected_flags = old_flags;
+	expected_flags |= MS_RDONLY;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+}
+
+TEST_F(mount_setattr, basic)
+{
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_RDONLY | MOUNT_ATTR_NOEXEC | MOUNT_ATTR_RELATIME,
+		.attr_clr	= MOUNT_ATTR__ATIME,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", 0, &attr, sizeof(attr)), 0);
+
+	expected_flags = old_flags;
+	expected_flags |= MS_RDONLY;
+	expected_flags |= MS_NOEXEC;
+	expected_flags &= ~MS_NOATIME;
+	expected_flags |= MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, old_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, old_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, old_flags);
+}
+
+TEST_F(mount_setattr, basic_recursive)
+{
+	int fd;
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_RDONLY | MOUNT_ATTR_NOEXEC | MOUNT_ATTR_RELATIME,
+		.attr_clr	= MOUNT_ATTR__ATIME,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags = old_flags;
+	expected_flags |= MS_RDONLY;
+	expected_flags |= MS_NOEXEC;
+	expected_flags &= ~MS_NOATIME;
+	expected_flags |= MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.attr_clr = MOUNT_ATTR_RDONLY;
+	attr.propagation = MS_SHARED;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags &= ~MS_RDONLY;
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B/BB"), true);
+
+	fd = open("/mnt/A/AA/B/b", O_RDWR | O_CLOEXEC | O_CREAT | O_EXCL, 0777);
+	ASSERT_GE(fd, 0);
+
+	/*
+	 * We're holding a fd open for writing so this needs to fail somewhere
+	 * in the middle and the mount options need to be unchanged.
+	 */
+	attr.attr_set = MOUNT_ATTR_RDONLY;
+	ASSERT_LT(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B/BB"), true);
+
+	EXPECT_EQ(close(fd), 0);
+}
+
+TEST_F(mount_setattr, mount_has_writers)
+{
+	int fd, dfd;
+	unsigned int old_flags = 0, new_flags = 0;
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_RDONLY | MOUNT_ATTR_NOEXEC | MOUNT_ATTR_RELATIME,
+		.attr_clr	= MOUNT_ATTR__ATIME,
+		.propagation	= MS_SHARED,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	fd = open("/mnt/A/AA/B/b", O_RDWR | O_CLOEXEC | O_CREAT | O_EXCL, 0777);
+	ASSERT_GE(fd, 0);
+
+	/*
+	 * We're holding a fd open to a mount somwhere in the middle so this
+	 * needs to fail somewhere in the middle. After this the mount options
+	 * need to be unchanged.
+	 */
+	ASSERT_LT(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, old_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A"), false);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, old_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA"), false);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, old_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B"), false);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, old_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B/BB"), false);
+
+	dfd = open("/mnt/A/AA/B", O_DIRECTORY | O_CLOEXEC);
+	ASSERT_GE(dfd, 0);
+	EXPECT_EQ(fsync(dfd), 0);
+	EXPECT_EQ(close(dfd), 0);
+
+	EXPECT_EQ(fsync(fd), 0);
+	EXPECT_EQ(close(fd), 0);
+
+	/* All writers are gone so this should succeed. */
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+}
+
+TEST_F(mount_setattr, mixed_mount_options)
+{
+	unsigned int old_flags1 = 0, old_flags2 = 0, new_flags = 0, expected_flags = 0;
+	struct mount_attr attr = {
+		.attr_clr = MOUNT_ATTR_RDONLY | MOUNT_ATTR_NOSUID | MOUNT_ATTR_NOEXEC | MOUNT_ATTR__ATIME,
+		.attr_set = MOUNT_ATTR_RELATIME,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags1 = read_mnt_flags("/mnt/B");
+	ASSERT_GT(old_flags1, 0);
+
+	old_flags2 = read_mnt_flags("/mnt/B/BB");
+	ASSERT_GT(old_flags2, 0);
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/B", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags = old_flags2;
+	expected_flags &= ~(MS_RDONLY | MS_NOEXEC | MS_NOATIME | MS_NOSUID);
+	expected_flags |= MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	expected_flags = old_flags2;
+	expected_flags &= ~(MS_RDONLY | MS_NOEXEC | MS_NOATIME | MS_NOSUID);
+	expected_flags |= MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+}
+
+TEST_F(mount_setattr, time_changes)
+{
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_NODIRATIME | MOUNT_ATTR_NOATIME,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	attr.attr_set = MOUNT_ATTR_STRICTATIME;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	attr.attr_set = MOUNT_ATTR_STRICTATIME | MOUNT_ATTR_NOATIME;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	attr.attr_set = MOUNT_ATTR_STRICTATIME | MOUNT_ATTR_NOATIME;
+	attr.attr_clr = MOUNT_ATTR__ATIME;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	attr.attr_set = 0;
+	attr.attr_clr = MOUNT_ATTR_STRICTATIME;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	attr.attr_clr = MOUNT_ATTR_NOATIME;
+	ASSERT_NE(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	attr.attr_set = MOUNT_ATTR_NODIRATIME | MOUNT_ATTR_NOATIME;
+	attr.attr_clr = MOUNT_ATTR__ATIME;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags = old_flags;
+	expected_flags |= MS_NOATIME;
+	expected_flags |= MS_NODIRATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.attr_set &= ~MOUNT_ATTR_NOATIME;
+	attr.attr_set |= MOUNT_ATTR_RELATIME;
+	attr.attr_clr |= MOUNT_ATTR__ATIME;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags &= ~MS_NOATIME;
+	expected_flags |= MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.attr_set &= ~MOUNT_ATTR_RELATIME;
+	attr.attr_set |= MOUNT_ATTR_STRICTATIME;
+	attr.attr_clr |= MOUNT_ATTR__ATIME;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags &= ~MS_RELATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.attr_set &= ~MOUNT_ATTR_STRICTATIME;
+	attr.attr_set |= MOUNT_ATTR_NOATIME;
+	attr.attr_clr |= MOUNT_ATTR__ATIME;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags |= MS_NOATIME;
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.attr_clr = MOUNT_ATTR_NODIRATIME;
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags &= ~MS_NODIRATIME;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+}
+
+TEST_F(mount_setattr, multi_threaded)
+{
+	int i, j, nthreads, ret = 0;
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	pthread_attr_t pattr;
+	pthread_t threads[DEFAULT_THREADS];
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	/* Try to change mount options from multiple threads. */
+	nthreads = get_nprocs_conf();
+	if (nthreads > DEFAULT_THREADS)
+		nthreads = DEFAULT_THREADS;
+
+	pthread_attr_init(&pattr);
+	for (i = 0; i < nthreads; i++)
+		ASSERT_EQ(pthread_create(&threads[i], &pattr, mount_setattr_thread, NULL), 0);
+
+	for (j = 0; j < i; j++) {
+		void *retptr = NULL;
+
+		EXPECT_EQ(pthread_join(threads[j], &retptr), 0);
+
+		ret += ptr_to_int(retptr);
+		EXPECT_EQ(ret, 0);
+	}
+	pthread_attr_destroy(&pattr);
+
+	ASSERT_EQ(ret, 0);
+
+	expected_flags = old_flags;
+	expected_flags |= MS_RDONLY;
+	expected_flags |= MS_NOSUID;
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B"), true);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	ASSERT_EQ(is_shared_mount("/mnt/A/AA/B/BB"), true);
+}
+
+TEST_F(mount_setattr, wrong_user_namespace)
+{
+	int ret;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_RDONLY,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	EXPECT_EQ(create_and_enter_userns(), 0);
+	ret = sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr));
+	ASSERT_LT(ret, 0);
+	ASSERT_EQ(errno, EPERM);
+}
+
+TEST_F(mount_setattr, wrong_mount_namespace)
+{
+	int fd, ret;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_RDONLY,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	fd = open("/mnt/A", O_DIRECTORY | O_CLOEXEC);
+	ASSERT_GE(fd, 0);
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	ret = sys_mount_setattr(fd, "", AT_EMPTY_PATH | AT_RECURSIVE, &attr, sizeof(attr));
+	ASSERT_LT(ret, 0);
+	ASSERT_EQ(errno, EINVAL);
+}
+
+FIXTURE(mount_setattr_idmapped) {
+};
+
+FIXTURE_SETUP(mount_setattr_idmapped)
+{
+	int img_fd = -EBADF;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	ASSERT_EQ(mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0), 0);
+
+	(void)umount2("/mnt", MNT_DETACH);
+	(void)umount2("/tmp", MNT_DETACH);
+
+	ASSERT_EQ(mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/tmp/B", 0777), 0);
+	ASSERT_EQ(mknodat(-EBADF, "/tmp/B/b", S_IFREG | 0644, 0), 0);
+	ASSERT_EQ(chown("/tmp/B/b", 0, 0), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/tmp/B/BB", 0777), 0);
+	ASSERT_EQ(mknodat(-EBADF, "/tmp/B/BB/b", S_IFREG | 0644, 0), 0);
+	ASSERT_EQ(chown("/tmp/B/BB/b", 0, 0), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B/BB", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=2m,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/mnt/A", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt/A", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/mnt/A/AA", 0777), 0);
+
+	ASSERT_EQ(mount("/tmp", "/mnt/A/AA", NULL, MS_BIND | MS_REC, NULL), 0);
+
+	ASSERT_EQ(mkdir("/mnt/B", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt/B", "ramfs",
+			MS_NOATIME | MS_NODEV | MS_NOSUID, 0), 0);
+
+	ASSERT_EQ(mkdir("/mnt/B/BB", 0777), 0);
+
+	ASSERT_EQ(mount("testing", "/tmp/B/BB", "devpts",
+			MS_RELATIME | MS_NOEXEC | MS_RDONLY, 0), 0);
+
+	ASSERT_EQ(mkdir("/mnt/C", 0777), 0);
+	ASSERT_EQ(mkdir("/mnt/D", 0777), 0);
+	img_fd = openat(-EBADF, "/mnt/C/ext4.img", O_CREAT | O_WRONLY, 0600);
+	ASSERT_GE(img_fd, 0);
+	ASSERT_EQ(ftruncate(img_fd, 2147483648 /* 2 GB */), 0);
+	ASSERT_EQ(system("mkfs.ext4 -q /mnt/C/ext4.img"), 0);
+	ASSERT_EQ(system("mount -o loop -t ext4 /mnt/C/ext4.img /mnt/D/"), 0);
+	ASSERT_EQ(close(img_fd), 0);
+}
+
+FIXTURE_TEARDOWN(mount_setattr_idmapped)
+{
+	(void)umount2("/mnt/A", MNT_DETACH);
+	(void)umount2("/tmp", MNT_DETACH);
+}
+
+/**
+ * Validate that negative fd values are rejected.
+ */
+TEST_F(mount_setattr_idmapped, invalid_fd_negative)
+{
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_IDMAP,
+		.userns_fd	= -EBADF,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_NE(sys_mount_setattr(-1, "/", 0, &attr, sizeof(attr)), 0) {
+		TH_LOG("failure: created idmapped mount with negative fd");
+	}
+}
+
+/**
+ * Validate that excessively large fd values are rejected.
+ */
+TEST_F(mount_setattr_idmapped, invalid_fd_large)
+{
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_IDMAP,
+		.userns_fd	= INT64_MAX,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_NE(sys_mount_setattr(-1, "/", 0, &attr, sizeof(attr)), 0) {
+		TH_LOG("failure: created idmapped mount with too large fd value");
+	}
+}
+
+/**
+ * Validate that closed fd values are rejected.
+ */
+TEST_F(mount_setattr_idmapped, invalid_fd_closed)
+{
+	int fd;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	fd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(fd, 0);
+	ASSERT_GE(close(fd), 0);
+
+	attr.userns_fd = fd;
+	ASSERT_NE(sys_mount_setattr(-1, "/", 0, &attr, sizeof(attr)), 0) {
+		TH_LOG("failure: created idmapped mount with closed fd");
+	}
+}
+
+/**
+ * Validate that the initial user namespace is rejected.
+ */
+TEST_F(mount_setattr_idmapped, invalid_fd_initial_userns)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC | OPEN_TREE_CLONE);
+	ASSERT_GE(open_tree_fd, 0);
+
+	attr.userns_fd = open("/proc/1/ns/user", O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	ASSERT_EQ(errno, EPERM);
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+static int map_ids(pid_t pid, unsigned long nsid, unsigned long hostid,
+		   unsigned long range)
+{
+	char map[100], procfile[256];
+
+	snprintf(procfile, sizeof(procfile), "/proc/%d/uid_map", pid);
+	snprintf(map, sizeof(map), "%lu %lu %lu", nsid, hostid, range);
+	if (write_file(procfile, map, strlen(map)))
+		return -1;
+
+
+	snprintf(procfile, sizeof(procfile), "/proc/%d/gid_map", pid);
+	snprintf(map, sizeof(map), "%lu %lu %lu", nsid, hostid, range);
+	if (write_file(procfile, map, strlen(map)))
+		return -1;
+
+	return 0;
+}
+
+#define __STACK_SIZE (8 * 1024 * 1024)
+static pid_t do_clone(int (*fn)(void *), void *arg, int flags)
+{
+	void *stack;
+
+	stack = malloc(__STACK_SIZE);
+	if (!stack)
+		return -ENOMEM;
+
+#ifdef __ia64__
+	return __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#else
+	return clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#endif
+}
+
+static int get_userns_fd_cb(void *data)
+{
+	return kill(getpid(), SIGSTOP);
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+static int get_userns_fd(unsigned long nsid, unsigned long hostid, unsigned long range)
+{
+	int ret;
+	pid_t pid;
+	char path[256];
+
+	pid = do_clone(get_userns_fd_cb, NULL, CLONE_NEWUSER);
+	if (pid < 0)
+		return -errno;
+
+	ret = map_ids(pid, nsid, hostid, range);
+	if (ret < 0)
+		return ret;
+
+	snprintf(path, sizeof(path), "/proc/%d/ns/user", pid);
+	ret = open(path, O_RDONLY | O_CLOEXEC);
+	kill(pid, SIGKILL);
+	wait_for_pid(pid);
+	return ret;
+}
+
+/**
+ * Validate that an attached mount in our mount namespace cannot be idmapped.
+ * (The kernel enforces that the mount's mount namespace and the caller's mount
+ *  namespace match.)
+ */
+TEST_F(mount_setattr_idmapped, attached_mount_inside_current_mount_namespace)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC);
+	ASSERT_GE(open_tree_fd, 0);
+
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	ASSERT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+/**
+ * Validate that idmapping a mount is rejected if the mount's mount namespace
+ * and our mount namespace don't match.
+ * (The kernel enforces that the mount's mount namespace and the caller's mount
+ *  namespace match.)
+ */
+TEST_F(mount_setattr_idmapped, attached_mount_outside_current_mount_namespace)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC);
+	ASSERT_GE(open_tree_fd, 0);
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr,
+				    sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	ASSERT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+/**
+ * Validate that an attached mount in our mount namespace can be idmapped.
+ */
+TEST_F(mount_setattr_idmapped, detached_mount_inside_current_mount_namespace)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(open_tree_fd, 0);
+
+	/* Changing mount properties on a detached mount. */
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_EQ(sys_mount_setattr(open_tree_fd, "",
+				    AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+/**
+ * Validate that a detached mount not in our mount namespace can be idmapped.
+ */
+TEST_F(mount_setattr_idmapped, detached_mount_outside_current_mount_namespace)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(open_tree_fd, 0);
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	/* Changing mount properties on a detached mount. */
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_EQ(sys_mount_setattr(open_tree_fd, "",
+				    AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+static bool expected_uid_gid(int dfd, const char *path, int flags,
+			     uid_t expected_uid, gid_t expected_gid)
+{
+	int ret;
+	struct stat st;
+
+	ret = fstatat(dfd, path, &st, flags);
+	if (ret < 0)
+		return false;
+
+	return st.st_uid == expected_uid && st.st_gid == expected_gid;
+}
+
+/**
+ * Validate that currently changing the idmapping of an idmapped mount fails.
+ */
+TEST_F(mount_setattr_idmapped, change_idmapping)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	ASSERT_TRUE(expected_uid_gid(-EBADF, "/mnt/D", 0, 0, 0));
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/D",
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(open_tree_fd, 0);
+
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_EQ(sys_mount_setattr(open_tree_fd, "",
+				    AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	ASSERT_EQ(close(attr.userns_fd), 0);
+
+	EXPECT_FALSE(expected_uid_gid(open_tree_fd, ".", 0, 0, 0));
+	EXPECT_TRUE(expected_uid_gid(open_tree_fd, ".", 0, 10000, 10000));
+
+	/* Change idmapping on a detached mount that is already idmapped. */
+	attr.userns_fd	= get_userns_fd(0, 20000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	/*
+	 * Make sure that open_tree_attr() without OPEN_TREE_CLONE is not a way
+	 * to bypass this mount_setattr() restriction.
+	 */
+	EXPECT_LT(sys_open_tree_attr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	EXPECT_FALSE(expected_uid_gid(open_tree_fd, ".", 0, 20000, 20000));
+	EXPECT_TRUE(expected_uid_gid(open_tree_fd, ".", 0, 10000, 10000));
+
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+}
+
+TEST_F(mount_setattr_idmapped, idmap_mount_tree_invalid)
+{
+	int open_tree_fd = -EBADF;
+	struct mount_attr attr = {
+		.attr_set = MOUNT_ATTR_IDMAP,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	ASSERT_EQ(expected_uid_gid(-EBADF, "/tmp/B/b", 0, 0, 0), 0);
+	ASSERT_EQ(expected_uid_gid(-EBADF, "/tmp/B/BB/b", 0, 0, 0), 0);
+
+	ASSERT_EQ(mount("testing", "/mnt/A", "ramfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir("/mnt/A/AA", 0777), 0);
+
+	ASSERT_EQ(mount("/tmp", "/mnt/A/AA", NULL, MS_BIND | MS_REC, NULL), 0);
+
+	open_tree_fd = sys_open_tree(-EBADF, "/mnt/A",
+				     AT_RECURSIVE |
+				     AT_EMPTY_PATH |
+				     AT_NO_AUTOMOUNT |
+				     AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(open_tree_fd, 0);
+
+	attr.userns_fd	= get_userns_fd(0, 10000, 10000);
+	ASSERT_GE(attr.userns_fd, 0);
+	ASSERT_NE(sys_mount_setattr(open_tree_fd, "", AT_EMPTY_PATH, &attr, sizeof(attr)), 0);
+	ASSERT_EQ(close(attr.userns_fd), 0);
+	ASSERT_EQ(close(open_tree_fd), 0);
+
+	ASSERT_EQ(expected_uid_gid(-EBADF, "/tmp/B/b", 0, 0, 0), 0);
+	ASSERT_EQ(expected_uid_gid(-EBADF, "/tmp/B/BB/b", 0, 0, 0), 0);
+	ASSERT_EQ(expected_uid_gid(open_tree_fd, "B/b", 0, 0, 0), 0);
+	ASSERT_EQ(expected_uid_gid(open_tree_fd, "B/BB/b", 0, 0, 0), 0);
+
+	(void)umount2("/mnt/A", MNT_DETACH);
+}
+
+TEST_F(mount_setattr, mount_attr_nosymfollow)
+{
+	int fd;
+	unsigned int old_flags = 0, new_flags = 0, expected_flags = 0;
+	struct mount_attr attr = {
+		.attr_set	= MOUNT_ATTR_NOSYMFOLLOW,
+	};
+
+	if (!mount_setattr_supported())
+		SKIP(return, "mount_setattr syscall not supported");
+
+	fd = open(NOSYMFOLLOW_SYMLINK, O_RDWR | O_CLOEXEC);
+	ASSERT_GT(fd, 0);
+	ASSERT_EQ(close(fd), 0);
+
+	old_flags = read_mnt_flags("/mnt/A");
+	ASSERT_GT(old_flags, 0);
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags = old_flags;
+	expected_flags |= ST_NOSYMFOLLOW;
+
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	fd = open(NOSYMFOLLOW_SYMLINK, O_RDWR | O_CLOEXEC);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, ELOOP);
+
+	attr.attr_set &= ~MOUNT_ATTR_NOSYMFOLLOW;
+	attr.attr_clr |= MOUNT_ATTR_NOSYMFOLLOW;
+
+	ASSERT_EQ(sys_mount_setattr(-1, "/mnt/A", AT_RECURSIVE, &attr, sizeof(attr)), 0);
+
+	expected_flags &= ~ST_NOSYMFOLLOW;
+	new_flags = read_mnt_flags("/mnt/A");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	new_flags = read_mnt_flags("/mnt/A/AA/B/BB");
+	ASSERT_EQ(new_flags, expected_flags);
+
+	fd = open(NOSYMFOLLOW_SYMLINK, O_RDWR | O_CLOEXEC);
+	ASSERT_GT(fd, 0);
+	ASSERT_EQ(close(fd), 0);
+}
+
+TEST_F(mount_setattr, open_tree_detached)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+	 * /mnt                   testing tmpfs
+	 * |-/mnt/A               testing tmpfs
+	 * | `-/mnt/A/AA          testing tmpfs
+	 * |   `-/mnt/A/AA/B      testing tmpfs
+	 * |     `-/mnt/A/AA/B/BB testing tmpfs
+	 * `-/mnt/B               testing ramfs
+	 */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "A/AA",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_subdir, 0);
+	/*
+	 * /AA          testing tmpfs
+	 * `-/AA/B      testing tmpfs
+	 *   `-/AA/B/BB testing tmpfs
+	 */
+	ASSERT_EQ(statx(fd_tree_subdir, "B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_subdir, "B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	ASSERT_EQ(move_mount(fd_tree_subdir, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	/*
+	 * /tmp/target1          testing tmpfs
+	 * `-/tmp/target1/B      testing tmpfs
+	 *   `-/tmp/target1/B/BB testing tmpfs
+	 */
+	ASSERT_EQ(statx(-EBADF, "/tmp/target1", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target1/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target1/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	ASSERT_EQ(move_mount(fd_tree_base, "", -EBADF, "/tmp/target2", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	/*
+	 * /tmp/target2                   testing tmpfs
+	 * |-/tmp/target2/A               testing tmpfs
+	 * | `-/tmp/target2/A/AA          testing tmpfs
+	 * |   `-/tmp/target2/A/AA/B      testing tmpfs
+	 * |     `-/tmp/target2/A/AA/B/BB testing tmpfs
+	 * `-/tmp/target2/B               testing ramfs
+	 */
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2/A", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2/A/AA", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2/A/AA/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2/A/AA/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target2/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	EXPECT_EQ(close(fd_tree_base), 0);
+	EXPECT_EQ(close(fd_tree_subdir), 0);
+}
+
+TEST_F(mount_setattr, open_tree_detached_fail)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+	 * /mnt                   testing tmpfs
+	 * |-/mnt/A               testing tmpfs
+	 * | `-/mnt/A/AA          testing tmpfs
+	 * |   `-/mnt/A/AA/B      testing tmpfs
+	 * |     `-/mnt/A/AA/B/BB testing tmpfs
+	 * `-/mnt/B               testing ramfs
+	 */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+
+	/*
+	 * The origin mount namespace of the anonymous mount namespace
+	 * of @fd_tree_base doesn't match the caller's mount namespace
+	 * anymore so creation of another detached mounts must fail.
+	 */
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "A/AA",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_LT(fd_tree_subdir, 0);
+	ASSERT_EQ(errno, EINVAL);
+}
+
+TEST_F(mount_setattr, open_tree_detached_fail2)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+	 * /mnt                   testing tmpfs
+	 * |-/mnt/A               testing tmpfs
+	 * | `-/mnt/A/AA          testing tmpfs
+	 * |   `-/mnt/A/AA/B      testing tmpfs
+	 * |     `-/mnt/A/AA/B/BB testing tmpfs
+	 * `-/mnt/B               testing ramfs
+	 */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	EXPECT_EQ(create_and_enter_userns(), 0);
+
+	/*
+	 * The caller entered a new user namespace. They will have
+	 * CAP_SYS_ADMIN in this user namespace. However, they're still
+	 * located in a mount namespace that is owned by an ancestor
+	 * user namespace in which they hold no privilege. Creating a
+	 * detached mount must thus fail.
+	 */
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "A/AA",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_LT(fd_tree_subdir, 0);
+	ASSERT_EQ(errno, EPERM);
+}
+
+TEST_F(mount_setattr, open_tree_detached_fail3)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				     OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+        * /mnt                   testing tmpfs
+        * |-/mnt/A               testing tmpfs
+        * | `-/mnt/A/AA          testing tmpfs
+        * |   `-/mnt/A/AA/B      testing tmpfs
+        * |     `-/mnt/A/AA/B/BB testing tmpfs
+        * `-/mnt/B               testing ramfs
+        */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_EQ(statx(fd_tree_base, "A/AA/B/BB", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	EXPECT_EQ(prepare_unpriv_mountns(), 0);
+
+	/*
+        * The caller entered a new mount namespace. They will have
+        * CAP_SYS_ADMIN in the owning user namespace of their mount
+        * namespace.
+        *
+        * However, the origin mount namespace of the anonymous mount
+        * namespace of @fd_tree_base doesn't match the caller's mount
+        * namespace anymore so creation of another detached mounts must
+        * fail.
+        */
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "A/AA",
+			               AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_LT(fd_tree_subdir, 0);
+	ASSERT_EQ(errno, EINVAL);
+}
+
+TEST_F(mount_setattr, open_tree_subfolder)
+{
+	int fd_context, fd_tmpfs, fd_tree;
+
+	fd_context = sys_fsopen("tmpfs", 0);
+	ASSERT_GE(fd_context, 0);
+
+	ASSERT_EQ(sys_fsconfig(fd_context, FSCONFIG_CMD_CREATE, NULL, NULL, 0), 0);
+
+	fd_tmpfs = sys_fsmount(fd_context, 0, 0);
+	ASSERT_GE(fd_tmpfs, 0);
+
+	EXPECT_EQ(close(fd_context), 0);
+
+	ASSERT_EQ(mkdirat(fd_tmpfs, "subdir", 0755), 0);
+
+	fd_tree = sys_open_tree(fd_tmpfs, "subdir",
+				AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree, 0);
+
+	EXPECT_EQ(close(fd_tmpfs), 0);
+
+	ASSERT_EQ(mkdirat(-EBADF, "/mnt/open_tree_subfolder", 0755), 0);
+
+	ASSERT_EQ(sys_move_mount(fd_tree, "", -EBADF, "/mnt/open_tree_subfolder", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	EXPECT_EQ(close(fd_tree), 0);
+
+	ASSERT_EQ(umount2("/mnt/open_tree_subfolder", 0), 0);
+
+	EXPECT_EQ(rmdir("/mnt/open_tree_subfolder"), 0);
+}
+
+TEST_F(mount_setattr, mount_detached_mount_on_detached_mount_then_close)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC | OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+	 * /mnt testing tmpfs
+	 */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_EMPTY_PATH | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_subdir, 0);
+	/*
+	 * /mnt testing tmpfs
+	 */
+	ASSERT_EQ(statx(fd_tree_subdir, "A", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	/*
+	 * /mnt   testing tmpfs
+	 * `-/mnt testing tmpfs
+	 */
+	ASSERT_EQ(move_mount(fd_tree_subdir, "", fd_tree_base, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+	ASSERT_EQ(statx(fd_tree_subdir, "", AT_EMPTY_PATH, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	ASSERT_NE(move_mount(fd_tree_subdir, "", fd_tree_base, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+
+	EXPECT_EQ(close(fd_tree_base), 0);
+	EXPECT_EQ(close(fd_tree_subdir), 0);
+}
+
+TEST_F(mount_setattr, mount_detached_mount_on_detached_mount_and_attach)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+	__u64 mnt_id = 0;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC | OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+	/*
+	 * /mnt testing tmpfs
+	 */
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	fd_tree_subdir = sys_open_tree(fd_tree_base, "",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       AT_EMPTY_PATH | OPEN_TREE_CLOEXEC |
+				       OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_subdir, 0);
+	/*
+	 * /mnt testing tmpfs
+	 */
+	ASSERT_EQ(statx(fd_tree_subdir, "A", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	/*
+	 * /mnt   testing tmpfs
+	 * `-/mnt testing tmpfs
+	 */
+	ASSERT_EQ(move_mount(fd_tree_subdir, "", fd_tree_base, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+	ASSERT_EQ(statx(fd_tree_subdir, "", AT_EMPTY_PATH, STATX_MNT_ID_UNIQUE, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_TRUE(stx.stx_mask & STATX_MNT_ID_UNIQUE);
+	mnt_id = stx.stx_mnt_id;
+
+	ASSERT_NE(move_mount(fd_tree_subdir, "", fd_tree_base, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+
+	ASSERT_EQ(move_mount(fd_tree_base, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	ASSERT_EQ(statx(-EBADF, "/tmp/target1", 0, STATX_MNT_ID_UNIQUE, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+	ASSERT_TRUE(stx.stx_mask & STATX_MNT_ID_UNIQUE);
+	ASSERT_EQ(stx.stx_mnt_id, mnt_id);
+
+	EXPECT_EQ(close(fd_tree_base), 0);
+	EXPECT_EQ(close(fd_tree_subdir), 0);
+}
+
+TEST_F(mount_setattr, move_mount_detached_fail)
+{
+	int fd_tree_base = -EBADF, fd_tree_subdir = -EBADF;
+	struct statx stx;
+
+	fd_tree_base = sys_open_tree(-EBADF, "/mnt",
+				     AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				     OPEN_TREE_CLOEXEC | OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_base, 0);
+
+	/* Attach the mount to the caller's mount namespace. */
+	ASSERT_EQ(move_mount(fd_tree_base, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	ASSERT_EQ(statx(fd_tree_base, "A", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	fd_tree_subdir = sys_open_tree(-EBADF, "/tmp/B",
+				       AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				       OPEN_TREE_CLOEXEC | OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree_subdir, 0);
+	ASSERT_EQ(statx(fd_tree_subdir, "BB", 0, 0, &stx), 0);
+	ASSERT_FALSE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	/* Not allowed to move an attached mount to a detached mount. */
+	ASSERT_NE(move_mount(fd_tree_base, "", fd_tree_subdir, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	EXPECT_EQ(close(fd_tree_base), 0);
+	EXPECT_EQ(close(fd_tree_subdir), 0);
+}
+
+TEST_F(mount_setattr, attach_detached_mount_then_umount_then_close)
+{
+	int fd_tree = -EBADF;
+	struct statx stx;
+
+	fd_tree = sys_open_tree(-EBADF, "/mnt",
+				AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree, 0);
+
+	ASSERT_EQ(statx(fd_tree, "A", 0, 0, &stx), 0);
+	/* We copied with AT_RECURSIVE so /mnt/A must be a mountpoint. */
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	/* Attach the mount to the caller's mount namespace. */
+	ASSERT_EQ(move_mount(fd_tree, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	ASSERT_EQ(statx(-EBADF, "/tmp/target1", 0, 0, &stx), 0);
+	ASSERT_TRUE(stx.stx_attributes & STATX_ATTR_MOUNT_ROOT);
+
+	ASSERT_EQ(umount2("/tmp/target1", MNT_DETACH), 0);
+
+	/*
+	 * This tests whether dissolve_on_fput() handles a NULL mount
+	 * namespace correctly, i.e., that it doesn't splat.
+	 */
+	EXPECT_EQ(close(fd_tree), 0);
+}
+
+TEST_F(mount_setattr, mount_detached1_onto_detached2_then_close_detached1_then_mount_detached2_onto_attached)
+{
+	int fd_tree1 = -EBADF, fd_tree2 = -EBADF;
+
+	/*
+	 * |-/mnt/A               testing tmpfs
+	 *   `-/mnt/A/AA          testing tmpfs
+	 *     `-/mnt/A/AA/B      testing tmpfs
+	 *       `-/mnt/A/AA/B/BB testing tmpfs
+	 */
+	fd_tree1 = sys_open_tree(-EBADF, "/mnt/A",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				 OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree1, 0);
+
+	/*
+	 * `-/mnt/B testing ramfs
+	 */
+	fd_tree2 = sys_open_tree(-EBADF, "/mnt/B",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_EMPTY_PATH | OPEN_TREE_CLOEXEC |
+				 OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree2, 0);
+
+	/*
+	 * Move the source detached mount tree to the target detached
+	 * mount tree. This will move all the mounts in the source mount
+	 * tree from the source anonymous mount namespace to the target
+	 * anonymous mount namespace.
+	 *
+	 * The source detached mount tree and the target detached mount
+	 * tree now both refer to the same anonymous mount namespace.
+	 *
+	 * |-""                 testing ramfs
+	 *   `-""               testing tmpfs
+	 *     `-""/AA          testing tmpfs
+	 *       `-""/AA/B      testing tmpfs
+	 *         `-""/AA/B/BB testing tmpfs
+	 */
+	ASSERT_EQ(move_mount(fd_tree1, "", fd_tree2, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+
+	/*
+	 * The source detached mount tree @fd_tree1 is now an attached
+	 * mount, i.e., it has a parent. Specifically, it now has the
+	 * root mount of the mount tree of @fd_tree2 as its parent.
+	 *
+	 * That means we are no longer allowed to attach it as we only
+	 * allow attaching the root of an anonymous mount tree, not
+	 * random bits and pieces. Verify that the kernel enforces this.
+	 */
+	ASSERT_NE(move_mount(fd_tree1, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	/*
+	 * Closing the source detached mount tree must not unmount and
+	 * free the shared anonymous mount namespace. The kernel will
+	 * quickly yell at us because the anonymous mount namespace
+	 * won't be empty when it's freed.
+	 */
+	EXPECT_EQ(close(fd_tree1), 0);
+
+	/*
+	 * Attach the mount tree to a non-anonymous mount namespace.
+	 * This can only succeed if closing fd_tree1 had proper
+	 * semantics and didn't cause the anonymous mount namespace to
+	 * be freed. If it did this will trigger a UAF which will be
+	 * visible on any KASAN enabled kernel.
+	 *
+	 * |-/tmp/target1                 testing ramfs
+	 *   `-/tmp/target1               testing tmpfs
+	 *     `-/tmp/target1/AA          testing tmpfs
+	 *       `-/tmp/target1/AA/B      testing tmpfs
+	 *         `-/tmp/target1/AA/B/BB testing tmpfs
+	 */
+	ASSERT_EQ(move_mount(fd_tree2, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+	EXPECT_EQ(close(fd_tree2), 0);
+}
+
+TEST_F(mount_setattr, two_detached_mounts_referring_to_same_anonymous_mount_namespace)
+{
+	int fd_tree1 = -EBADF, fd_tree2 = -EBADF;
+
+	/*
+	 * Copy the following mount tree:
+	 *
+	 * |-/mnt/A               testing tmpfs
+	 *   `-/mnt/A/AA          testing tmpfs
+	 *     `-/mnt/A/AA/B      testing tmpfs
+	 *       `-/mnt/A/AA/B/BB testing tmpfs
+	 */
+	fd_tree1 = sys_open_tree(-EBADF, "/mnt/A",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				 OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree1, 0);
+
+	/*
+	 * Create an O_PATH file descriptors with a separate struct file
+	 * that refers to the same detached mount tree as @fd_tree1
+	 */
+	fd_tree2 = sys_open_tree(fd_tree1, "",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_EMPTY_PATH | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(fd_tree2, 0);
+
+	/*
+	 * Copy the following mount tree:
+	 *
+	 * |-/tmp/target1               testing tmpfs
+	 *   `-/tmp/target1/AA          testing tmpfs
+	 *     `-/tmp/target1/AA/B      testing tmpfs
+	 *       `-/tmp/target1/AA/B/BB testing tmpfs
+	 */
+	ASSERT_EQ(move_mount(fd_tree2, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	/*
+	 * This must fail as this would mean adding the same mount tree
+	 * into the same mount tree.
+	 */
+	ASSERT_NE(move_mount(fd_tree1, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+}
+
+TEST_F(mount_setattr, two_detached_subtrees_of_same_anonymous_mount_namespace)
+{
+	int fd_tree1 = -EBADF, fd_tree2 = -EBADF;
+
+	/*
+	 * Copy the following mount tree:
+	 *
+	 * |-/mnt/A               testing tmpfs
+	 *   `-/mnt/A/AA          testing tmpfs
+	 *     `-/mnt/A/AA/B      testing tmpfs
+	 *       `-/mnt/A/AA/B/BB testing tmpfs
+	 */
+	fd_tree1 = sys_open_tree(-EBADF, "/mnt/A",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				 OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree1, 0);
+
+	/*
+	 * Create an O_PATH file descriptors with a separate struct file that
+	 * refers to a subtree of the same detached mount tree as @fd_tree1
+	 */
+	fd_tree2 = sys_open_tree(fd_tree1, "AA",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_EMPTY_PATH | OPEN_TREE_CLOEXEC);
+	ASSERT_GE(fd_tree2, 0);
+
+	/*
+	 * This must fail as it is only possible to attach the root of a
+	 * detached mount tree.
+	 */
+	ASSERT_NE(move_mount(fd_tree2, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+
+	ASSERT_EQ(move_mount(fd_tree1, "", -EBADF, "/tmp/target1", MOVE_MOUNT_F_EMPTY_PATH), 0);
+}
+
+TEST_F(mount_setattr, detached_tree_propagation)
+{
+	int fd_tree = -EBADF;
+	struct statx stx1, stx2, stx3, stx4;
+
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_EQ(mount(NULL, "/mnt", NULL, MS_REC | MS_SHARED, NULL), 0);
+
+	/*
+	 * Copy the following mount tree:
+	 *
+         * /mnt                   testing tmpfs
+         * |-/mnt/A               testing tmpfs
+         * | `-/mnt/A/AA          testing tmpfs
+         * |   `-/mnt/A/AA/B      testing tmpfs
+         * |     `-/mnt/A/AA/B/BB testing tmpfs
+         * `-/mnt/B               testing ramfs
+	 */
+	fd_tree = sys_open_tree(-EBADF, "/mnt",
+				 AT_NO_AUTOMOUNT | AT_SYMLINK_NOFOLLOW |
+				 AT_RECURSIVE | OPEN_TREE_CLOEXEC |
+				 OPEN_TREE_CLONE);
+	ASSERT_GE(fd_tree, 0);
+
+	ASSERT_EQ(statx(-EBADF, "/mnt/A", 0, 0, &stx1), 0);
+	ASSERT_EQ(statx(fd_tree, "A", 0, 0, &stx2), 0);
+
+	/*
+	 * Copying the mount namespace like done above doesn't alter the
+	 * mounts in any way so the filesystem mounted on /mnt must be
+	 * identical even though the mounts will differ. Use the device
+	 * information to verify that. Note that tmpfs will have a 0
+	 * major number so comparing the major number is misleading.
+	 */
+	ASSERT_EQ(stx1.stx_dev_minor, stx2.stx_dev_minor);
+
+	/* Mount a tmpfs filesystem over /mnt/A. */
+	ASSERT_EQ(mount(NULL, "/mnt/A", "tmpfs", 0, NULL), 0);
+
+
+	ASSERT_EQ(statx(-EBADF, "/mnt/A", 0, 0, &stx3), 0);
+	ASSERT_EQ(statx(fd_tree, "A", 0, 0, &stx4), 0);
+
+	/*
+	 * A new filesystem has been mounted on top of /mnt/A which
+	 * means that the device information will be different for any
+	 * statx() that was taken from /mnt/A before the mount compared
+	 * to one after the mount.
+	 */
+	ASSERT_NE(stx1.stx_dev_minor, stx3.stx_dev_minor);
+	ASSERT_EQ(stx1.stx_dev_minor, stx4.stx_dev_minor);
+
+	EXPECT_EQ(close(fd_tree), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/move_mount_set_group/.gitignore b/tools/testing/selftests/move_mount_set_group/.gitignore
new file mode 100644
index 000000000000..f5e339268720
--- /dev/null
+++ b/tools/testing/selftests/move_mount_set_group/.gitignore
@@ -0,0 +1 @@
+move_mount_set_group_test
diff --git a/tools/testing/selftests/move_mount_set_group/Makefile b/tools/testing/selftests/move_mount_set_group/Makefile
new file mode 100644
index 000000000000..94235846b6f9
--- /dev/null
+++ b/tools/testing/selftests/move_mount_set_group/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for mount selftests.
+CFLAGS = -g $(KHDR_INCLUDES) -Wall -O2
+
+TEST_GEN_FILES += move_mount_set_group_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/move_mount_set_group/config b/tools/testing/selftests/move_mount_set_group/config
new file mode 100644
index 000000000000..416bd53ce982
--- /dev/null
+++ b/tools/testing/selftests/move_mount_set_group/config
@@ -0,0 +1 @@
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
new file mode 100644
index 000000000000..12434415ec36
--- /dev/null
+++ b/tools/testing/selftests/move_mount_set_group/move_mount_set_group_test.c
@@ -0,0 +1,375 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <sys/syscall.h>
+
+#include "kselftest_harness.h"
+
+#ifndef CLONE_NEWNS
+#define CLONE_NEWNS 0x00020000
+#endif
+
+#ifndef CLONE_NEWUSER
+#define CLONE_NEWUSER 0x10000000
+#endif
+
+#ifndef MS_SHARED
+#define MS_SHARED (1 << 20)
+#endif
+
+#ifndef MS_PRIVATE
+#define MS_PRIVATE (1<<18)
+#endif
+
+#ifndef MOVE_MOUNT_SET_GROUP
+#define MOVE_MOUNT_SET_GROUP 0x00000100
+#endif
+
+#ifndef MOVE_MOUNT_F_EMPTY_PATH
+#define MOVE_MOUNT_F_EMPTY_PATH 0x00000004
+#endif
+
+#ifndef MOVE_MOUNT_T_EMPTY_PATH
+#define MOVE_MOUNT_T_EMPTY_PATH 0x00000040
+#endif
+
+static ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static int write_file(const char *path, const void *buf, size_t count)
+{
+	int fd;
+	ssize_t ret;
+
+	fd = open(path, O_WRONLY | O_CLOEXEC | O_NOCTTY | O_NOFOLLOW);
+	if (fd < 0)
+		return -1;
+
+	ret = write_nointr(fd, buf, count);
+	close(fd);
+	if (ret < 0 || (size_t)ret != count)
+		return -1;
+
+	return 0;
+}
+
+static int create_and_enter_userns(void)
+{
+	uid_t uid;
+	gid_t gid;
+	char map[100];
+
+	uid = getuid();
+	gid = getgid();
+
+	if (unshare(CLONE_NEWUSER))
+		return -1;
+
+	if (write_file("/proc/self/setgroups", "deny", sizeof("deny") - 1) &&
+	    errno != ENOENT)
+		return -1;
+
+	snprintf(map, sizeof(map), "0 %d 1", uid);
+	if (write_file("/proc/self/uid_map", map, strlen(map)))
+		return -1;
+
+
+	snprintf(map, sizeof(map), "0 %d 1", gid);
+	if (write_file("/proc/self/gid_map", map, strlen(map)))
+		return -1;
+
+	if (setgid(0))
+		return -1;
+
+	if (setuid(0))
+		return -1;
+
+	return 0;
+}
+
+static int prepare_unpriv_mountns(void)
+{
+	if (create_and_enter_userns())
+		return -1;
+
+	if (unshare(CLONE_NEWNS))
+		return -1;
+
+	if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0))
+		return -1;
+
+	return 0;
+}
+
+static char *get_field(char *src, int nfields)
+{
+	int i;
+	char *p = src;
+
+	for (i = 0; i < nfields; i++) {
+		while (*p && *p != ' ' && *p != '\t')
+			p++;
+
+		if (!*p)
+			break;
+
+		p++;
+	}
+
+	return p;
+}
+
+static void null_endofword(char *word)
+{
+	while (*word && *word != ' ' && *word != '\t')
+		word++;
+	*word = '\0';
+}
+
+static bool is_shared_mount(const char *path)
+{
+	size_t len = 0;
+	char *line = NULL;
+	FILE *f = NULL;
+
+	f = fopen("/proc/self/mountinfo", "re");
+	if (!f)
+		return false;
+
+	while (getline(&line, &len, f) != -1) {
+		char *opts, *target;
+
+		target = get_field(line, 4);
+		if (!target)
+			continue;
+
+		opts = get_field(target, 2);
+		if (!opts)
+			continue;
+
+		null_endofword(target);
+
+		if (strcmp(target, path) != 0)
+			continue;
+
+		null_endofword(opts);
+		if (strstr(opts, "shared:"))
+			return true;
+	}
+
+	free(line);
+	fclose(f);
+
+	return false;
+}
+
+/* Attempt to de-conflict with the selftests tree. */
+#ifndef SKIP
+#define SKIP(s, ...)	XFAIL(s, ##__VA_ARGS__)
+#endif
+
+#define SET_GROUP_FROM	"/tmp/move_mount_set_group_supported_from"
+#define SET_GROUP_TO	"/tmp/move_mount_set_group_supported_to"
+
+static bool move_mount_set_group_supported(void)
+{
+	int ret;
+
+	if (mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV,
+		  "size=100000,mode=700"))
+		return -1;
+
+	if (mount(NULL, "/tmp", NULL, MS_PRIVATE, 0))
+		return -1;
+
+	if (mkdir(SET_GROUP_FROM, 0777))
+		return -1;
+
+	if (mkdir(SET_GROUP_TO, 0777))
+		return -1;
+
+	if (mount("testing", SET_GROUP_FROM, "tmpfs", MS_NOATIME | MS_NODEV,
+		  "size=100000,mode=700"))
+		return -1;
+
+	if (mount(SET_GROUP_FROM, SET_GROUP_TO, NULL, MS_BIND, NULL))
+		return -1;
+
+	if (mount(NULL, SET_GROUP_FROM, NULL, MS_SHARED, 0))
+		return -1;
+
+	ret = syscall(__NR_move_mount, AT_FDCWD, SET_GROUP_FROM,
+		      AT_FDCWD, SET_GROUP_TO, MOVE_MOUNT_SET_GROUP);
+	umount2("/tmp", MNT_DETACH);
+
+	return ret >= 0;
+}
+
+FIXTURE(move_mount_set_group) {
+};
+
+#define SET_GROUP_A "/tmp/A"
+
+FIXTURE_SETUP(move_mount_set_group)
+{
+	bool ret;
+
+	ASSERT_EQ(prepare_unpriv_mountns(), 0);
+
+	ret = move_mount_set_group_supported();
+	ASSERT_GE(ret, 0);
+	if (!ret)
+		SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported");
+
+	umount2("/tmp", MNT_DETACH);
+
+	ASSERT_EQ(mount("testing", "/tmp", "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+
+	ASSERT_EQ(mkdir(SET_GROUP_A, 0777), 0);
+
+	ASSERT_EQ(mount("testing", SET_GROUP_A, "tmpfs", MS_NOATIME | MS_NODEV,
+			"size=100000,mode=700"), 0);
+}
+
+FIXTURE_TEARDOWN(move_mount_set_group)
+{
+	bool ret;
+
+	ret = move_mount_set_group_supported();
+	ASSERT_GE(ret, 0);
+	if (!ret)
+		SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported");
+
+	umount2("/tmp", MNT_DETACH);
+}
+
+#define __STACK_SIZE (8 * 1024 * 1024)
+static pid_t do_clone(int (*fn)(void *), void *arg, int flags)
+{
+	void *stack;
+
+	stack = malloc(__STACK_SIZE);
+	if (!stack)
+		return -ENOMEM;
+
+#ifdef __ia64__
+	return __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#else
+	return clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg, NULL);
+#endif
+}
+
+static int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		return -1;
+	}
+
+	if (!WIFEXITED(status))
+		return -1;
+
+	return WEXITSTATUS(status);
+}
+
+struct child_args {
+	int unsfd;
+	int mntnsfd;
+	bool shared;
+	int mntfd;
+};
+
+static int get_nestedns_mount_cb(void *data)
+{
+	struct child_args *ca = (struct child_args *)data;
+	int ret;
+
+	ret = prepare_unpriv_mountns();
+	if (ret)
+		return 1;
+
+	if (ca->shared) {
+		ret = mount(NULL, SET_GROUP_A, NULL, MS_SHARED, 0);
+		if (ret)
+			return 1;
+	}
+
+	ret = open("/proc/self/ns/user", O_RDONLY);
+	if (ret < 0)
+		return 1;
+	ca->unsfd = ret;
+
+	ret = open("/proc/self/ns/mnt", O_RDONLY);
+	if (ret < 0)
+		return 1;
+	ca->mntnsfd = ret;
+
+	ret = open(SET_GROUP_A, O_RDONLY);
+	if (ret < 0)
+		return 1;
+	ca->mntfd = ret;
+
+	return 0;
+}
+
+TEST_F(move_mount_set_group, complex_sharing_copying)
+{
+	struct child_args ca_from = {
+		.shared = true,
+	};
+	struct child_args ca_to = {
+		.shared = false,
+	};
+	pid_t pid;
+	bool ret;
+
+	ret = move_mount_set_group_supported();
+	ASSERT_GE(ret, 0);
+	if (!ret)
+		SKIP(return, "move_mount(MOVE_MOUNT_SET_GROUP) is not supported");
+
+	pid = do_clone(get_nestedns_mount_cb, (void *)&ca_from, CLONE_VFORK |
+		       CLONE_VM | CLONE_FILES); ASSERT_GT(pid, 0);
+	ASSERT_EQ(wait_for_pid(pid), 0);
+
+	pid = do_clone(get_nestedns_mount_cb, (void *)&ca_to, CLONE_VFORK |
+		       CLONE_VM | CLONE_FILES); ASSERT_GT(pid, 0);
+	ASSERT_EQ(wait_for_pid(pid), 0);
+
+	ASSERT_EQ(syscall(__NR_move_mount, ca_from.mntfd, "",
+			  ca_to.mntfd, "", MOVE_MOUNT_SET_GROUP
+			  | MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH),
+		  0);
+
+	ASSERT_EQ(setns(ca_to.mntnsfd, CLONE_NEWNS), 0);
+	ASSERT_EQ(is_shared_mount(SET_GROUP_A), 1);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/mqueue/.gitignore b/tools/testing/selftests/mqueue/.gitignore
index d8d42377205a..72ad8ca691c9 100644
--- a/tools/testing/selftests/mqueue/.gitignore
+++ b/tools/testing/selftests/mqueue/.gitignore
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 mq_open_tests
 mq_perf_tests
diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index 0e3b41eb85cd..8a58055fc1f5 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,22 +1,7 @@
-CFLAGS = -O2
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -O2
+LDLIBS = -lrt -lpthread -lpopt
 
-all:
-	$(CC) $(CFLAGS) mq_open_tests.c -o mq_open_tests -lrt
-	$(CC) $(CFLAGS) -o mq_perf_tests mq_perf_tests.c -lrt -lpthread -lpopt
+TEST_GEN_PROGS := mq_open_tests mq_perf_tests
 
 include ../lib.mk
-
-override define RUN_TESTS
-	@./mq_open_tests /test1 || echo "selftests: mq_open_tests [FAIL]"
-	@./mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
-endef
-
-TEST_PROGS := mq_open_tests mq_perf_tests
-
-override define EMIT_TESTS
-	echo "./mq_open_tests /test1 || echo \"selftests: mq_open_tests [FAIL]\""
-	echo "./mq_perf_tests || echo \"selftests: mq_perf_tests [FAIL]\""
-endef
-
-clean:
-	rm -f mq_open_tests mq_perf_tests
diff --git a/tools/testing/selftests/mqueue/mq_open_tests.c b/tools/testing/selftests/mqueue/mq_open_tests.c
index 9c1a5d359055..b16029c40c0f 100644
--- a/tools/testing/selftests/mqueue/mq_open_tests.c
+++ b/tools/testing/selftests/mqueue/mq_open_tests.c
@@ -31,6 +31,9 @@
 #include <sys/resource.h>
 #include <sys/stat.h>
 #include <mqueue.h>
+#include <error.h>
+
+#include "kselftest.h"
 
 static char *usage =
 "Usage:\n"
@@ -52,6 +55,7 @@ int saved_def_msgs, saved_def_msgsize, saved_max_msgs, saved_max_msgsize;
 int cur_def_msgs, cur_def_msgsize, cur_max_msgs, cur_max_msgsize;
 FILE *def_msgs, *def_msgsize, *max_msgs, *max_msgsize;
 char *queue_path;
+char *default_queue_path = "/test1";
 mqd_t queue = -1;
 
 static inline void __set(FILE *stream, int value, char *err_msg);
@@ -237,35 +241,33 @@ int main(int argc, char *argv[])
 	struct mq_attr attr, result;
 
 	if (argc != 2) {
-		fprintf(stderr, "Must pass a valid queue name\n\n");
-		fprintf(stderr, usage, argv[0]);
-		exit(1);
-	}
+		printf("Using Default queue path - %s\n", default_queue_path);
+		queue_path = default_queue_path;
+	} else {
 
 	/*
 	 * Although we can create a msg queue with a non-absolute path name,
 	 * unlink will fail.  So, if the name doesn't start with a /, add one
 	 * when we save it.
 	 */
-	if (*argv[1] == '/')
-		queue_path = strdup(argv[1]);
-	else {
-		queue_path = malloc(strlen(argv[1]) + 2);
-		if (!queue_path) {
-			perror("malloc()");
-			exit(1);
+		if (*argv[1] == '/')
+			queue_path = strdup(argv[1]);
+		else {
+			queue_path = malloc(strlen(argv[1]) + 2);
+			if (!queue_path) {
+				perror("malloc()");
+				exit(1);
+			}
+			queue_path[0] = '/';
+			queue_path[1] = 0;
+			strcat(queue_path, argv[1]);
 		}
-		queue_path[0] = '/';
-		queue_path[1] = 0;
-		strcat(queue_path, argv[1]);
 	}
 
-	if (getuid() != 0) {
-		fprintf(stderr, "Not running as root, but almost all tests "
+	if (getuid() != 0)
+		ksft_exit_skip("Not running as root, but almost all tests "
 			"require root in order to modify\nsystem settings.  "
 			"Exiting.\n");
-		exit(1);
-	}
 
 	/* Find out what files there are for us to make tweaks in */
 	def_msgs = fopen(DEF_MSGS, "r+");
diff --git a/tools/testing/selftests/mqueue/mq_perf_tests.c b/tools/testing/selftests/mqueue/mq_perf_tests.c
index 8519e9ee97e3..303c46eebd94 100644
--- a/tools/testing/selftests/mqueue/mq_perf_tests.c
+++ b/tools/testing/selftests/mqueue/mq_perf_tests.c
@@ -35,8 +35,12 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 #include <sys/stat.h>
+#include <sys/param.h>
 #include <mqueue.h>
 #include <popt.h>
+#include <error.h>
+
+#include "kselftest.h"
 
 static char *usage =
 "Usage:\n"
@@ -70,7 +74,6 @@ static char *usage =
 char *MAX_MSGS = "/proc/sys/fs/mqueue/msg_max";
 char *MAX_MSGSIZE = "/proc/sys/fs/mqueue/msgsize_max";
 
-#define min(a, b) ((a) < (b) ? (a) : (b))
 #define MAX_CPUS 64
 char *cpu_option_string;
 int cpus_to_pin[MAX_CPUS];
@@ -177,6 +180,9 @@ void shutdown(int exit_val, char *err_cause, int line_no)
 	if (in_shutdown++)
 		return;
 
+	/* Free the cpu_set allocated using CPU_ALLOC in main function */
+	CPU_FREE(cpu_set);
+
 	for (i = 0; i < num_cpus_to_pin; i++)
 		if (cpu_threads[i]) {
 			pthread_kill(cpu_threads[i], SIGUSR1);
@@ -317,7 +323,8 @@ void *fake_cont_thread(void *arg)
 void *cont_thread(void *arg)
 {
 	char buff[MSG_SIZE];
-	int i, priority;
+	int i;
+	unsigned int priority;
 
 	for (i = 0; i < num_cpus_to_pin; i++)
 		if (cpu_threads[i] == pthread_self())
@@ -419,7 +426,8 @@ struct test test2[] = {
 void *perf_test_thread(void *arg)
 {
 	char buff[MSG_SIZE];
-	int prio_out, prio_in;
+	int prio_out;
+	unsigned int prio_in;
 	int i;
 	clockid_t clock;
 	pthread_t *t;
@@ -548,7 +556,13 @@ int main(int argc, char *argv[])
 		perror("sysconf(_SC_NPROCESSORS_ONLN)");
 		exit(1);
 	}
-	cpus_online = min(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
+
+	if (getuid() != 0)
+		ksft_exit_skip("Not running as root, but almost all tests "
+			"require root in order to modify\nsystem settings.  "
+			"Exiting.\n");
+
+	cpus_online = MIN(MAX_CPUS, sysconf(_SC_NPROCESSORS_ONLN));
 	cpu_set = CPU_ALLOC(cpus_online);
 	if (cpu_set == NULL) {
 		perror("CPU_ALLOC()");
@@ -586,7 +600,7 @@ int main(int argc, char *argv[])
 						cpu_set)) {
 					fprintf(stderr, "Any given CPU may "
 						"only be given once.\n");
-					exit(1);
+					goto err_code;
 				} else
 					CPU_SET_S(cpus_to_pin[cpu],
 						  cpu_set_size, cpu_set);
@@ -604,7 +618,7 @@ int main(int argc, char *argv[])
 				queue_path = malloc(strlen(option) + 2);
 				if (!queue_path) {
 					perror("malloc()");
-					exit(1);
+					goto err_code;
 				}
 				queue_path[0] = '/';
 				queue_path[1] = 0;
@@ -619,19 +633,12 @@ int main(int argc, char *argv[])
 		fprintf(stderr, "Must pass at least one CPU to continuous "
 			"mode.\n");
 		poptPrintUsage(popt_context, stderr, 0);
-		exit(1);
+		goto err_code;
 	} else if (!continuous_mode) {
 		num_cpus_to_pin = 1;
 		cpus_to_pin[0] = cpus_online - 1;
 	}
 
-	if (getuid() != 0) {
-		fprintf(stderr, "Not running as root, but almost all tests "
-			"require root in order to modify\nsystem settings.  "
-			"Exiting.\n");
-		exit(1);
-	}
-
 	max_msgs = fopen(MAX_MSGS, "r+");
 	max_msgsize = fopen(MAX_MSGSIZE, "r+");
 	if (!max_msgs)
@@ -739,4 +746,9 @@ int main(int argc, char *argv[])
 			sleep(1);
 	}
 	shutdown(0, "", 0);
+
+err_code:
+	CPU_FREE(cpu_set);
+	exit(1);
+
 }
diff --git a/tools/testing/selftests/mqueue/setting b/tools/testing/selftests/mqueue/setting
new file mode 100644
index 000000000000..a953c96aa16e
--- /dev/null
+++ b/tools/testing/selftests/mqueue/setting
@@ -0,0 +1 @@
+timeout=180
diff --git a/tools/testing/selftests/mseal_system_mappings/.gitignore b/tools/testing/selftests/mseal_system_mappings/.gitignore
new file mode 100644
index 000000000000..319c497a595e
--- /dev/null
+++ b/tools/testing/selftests/mseal_system_mappings/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+sysmap_is_sealed
diff --git a/tools/testing/selftests/mseal_system_mappings/Makefile b/tools/testing/selftests/mseal_system_mappings/Makefile
new file mode 100644
index 000000000000..2b4504e2f52f
--- /dev/null
+++ b/tools/testing/selftests/mseal_system_mappings/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -std=c99 -pthread -Wall $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := sysmap_is_sealed
+
+include ../lib.mk
diff --git a/tools/testing/selftests/mseal_system_mappings/config b/tools/testing/selftests/mseal_system_mappings/config
new file mode 100644
index 000000000000..675cb9f37b86
--- /dev/null
+++ b/tools/testing/selftests/mseal_system_mappings/config
@@ -0,0 +1 @@
+CONFIG_MSEAL_SYSTEM_MAPPINGS=y
diff --git a/tools/testing/selftests/mseal_system_mappings/sysmap_is_sealed.c b/tools/testing/selftests/mseal_system_mappings/sysmap_is_sealed.c
new file mode 100644
index 000000000000..cb0ca6ed7ebe
--- /dev/null
+++ b/tools/testing/selftests/mseal_system_mappings/sysmap_is_sealed.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * test system mappings are sealed when
+ * KCONFIG_MSEAL_SYSTEM_MAPPINGS=y
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdbool.h>
+
+#include "kselftest.h"
+#include "kselftest_harness.h"
+
+#define VMFLAGS "VmFlags:"
+#define MSEAL_FLAGS "sl"
+#define MAX_LINE_LEN 512
+
+bool has_mapping(char *name, FILE *maps)
+{
+	char line[MAX_LINE_LEN];
+
+	while (fgets(line, sizeof(line), maps)) {
+		if (strstr(line, name))
+			return true;
+	}
+
+	return false;
+}
+
+bool mapping_is_sealed(char *name, FILE *maps)
+{
+	char line[MAX_LINE_LEN];
+
+	while (fgets(line, sizeof(line), maps)) {
+		if (!strncmp(line, VMFLAGS, strlen(VMFLAGS))) {
+			if (strstr(line, MSEAL_FLAGS))
+				return true;
+
+			return false;
+		}
+	}
+
+	return false;
+}
+
+FIXTURE(basic) {
+	FILE *maps;
+};
+
+FIXTURE_SETUP(basic)
+{
+	self->maps = fopen("/proc/self/smaps", "r");
+	if (!self->maps)
+		SKIP(return, "Could not open /proc/self/smap, errno=%d",
+			errno);
+};
+
+FIXTURE_TEARDOWN(basic)
+{
+	if (self->maps)
+		fclose(self->maps);
+};
+
+FIXTURE_VARIANT(basic)
+{
+	char *name;
+	bool sealed;
+};
+
+FIXTURE_VARIANT_ADD(basic, vdso) {
+	.name = "[vdso]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, vvar) {
+	.name = "[vvar]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, vvar_vclock) {
+	.name = "[vvar_vclock]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, sigpage) {
+	.name = "[sigpage]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, vectors) {
+	.name = "[vectors]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, uprobes) {
+	.name = "[uprobes]",
+	.sealed = true,
+};
+
+FIXTURE_VARIANT_ADD(basic, stack) {
+	.name = "[stack]",
+	.sealed = false,
+};
+
+TEST_F(basic, check_sealed)
+{
+	if (!has_mapping(variant->name, self->maps)) {
+		SKIP(return, "could not find the mapping, %s",
+			variant->name);
+	}
+
+	EXPECT_EQ(variant->sealed,
+		mapping_is_sealed(variant->name, self->maps));
+};
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/.gitignore b/tools/testing/selftests/namespaces/.gitignore
new file mode 100644
index 000000000000..0989e80da457
--- /dev/null
+++ b/tools/testing/selftests/namespaces/.gitignore
@@ -0,0 +1,12 @@
+nsid_test
+file_handle_test
+init_ino_test
+ns_active_ref_test
+listns_test
+listns_permissions_test
+listns_efault_test
+siocgskns_test
+cred_change_test
+stress_test
+listns_pagination_bug
+regression_pidfd_setns_test
diff --git a/tools/testing/selftests/namespaces/Makefile b/tools/testing/selftests/namespaces/Makefile
new file mode 100644
index 000000000000..fbb821652c17
--- /dev/null
+++ b/tools/testing/selftests/namespaces/Makefile
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -Wall -O0 -g $(KHDR_INCLUDES) $(TOOLS_INCLUDES)
+LDLIBS += -lcap
+
+TEST_GEN_PROGS := nsid_test \
+		  file_handle_test \
+		  init_ino_test \
+		  ns_active_ref_test \
+		  listns_test \
+		  listns_permissions_test \
+		  listns_efault_test \
+		  siocgskns_test \
+		  cred_change_test \
+		  stress_test \
+		  listns_pagination_bug \
+		  regression_pidfd_setns_test
+
+include ../lib.mk
+
+$(OUTPUT)/ns_active_ref_test: ../filesystems/utils.c
+$(OUTPUT)/listns_test: ../filesystems/utils.c
+$(OUTPUT)/listns_permissions_test: ../filesystems/utils.c
+$(OUTPUT)/listns_efault_test: ../filesystems/utils.c
+$(OUTPUT)/siocgskns_test: ../filesystems/utils.c
+$(OUTPUT)/cred_change_test: ../filesystems/utils.c
+$(OUTPUT)/stress_test: ../filesystems/utils.c
+$(OUTPUT)/listns_pagination_bug: ../filesystems/utils.c
+$(OUTPUT)/regression_pidfd_setns_test: ../filesystems/utils.c
+
diff --git a/tools/testing/selftests/namespaces/config b/tools/testing/selftests/namespaces/config
new file mode 100644
index 000000000000..d09836260262
--- /dev/null
+++ b/tools/testing/selftests/namespaces/config
@@ -0,0 +1,7 @@
+CONFIG_UTS_NS=y
+CONFIG_TIME_NS=y
+CONFIG_IPC_NS=y
+CONFIG_USER_NS=y
+CONFIG_PID_NS=y
+CONFIG_NET_NS=y
+CONFIG_CGROUPS=y
diff --git a/tools/testing/selftests/namespaces/cred_change_test.c b/tools/testing/selftests/namespaces/cred_change_test.c
new file mode 100644
index 000000000000..7b4f5ad3f725
--- /dev/null
+++ b/tools/testing/selftests/namespaces/cred_change_test.c
@@ -0,0 +1,814 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/capability.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/nsfs.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+/*
+ * Test credential changes and their impact on namespace active references.
+ */
+
+/*
+ * Test setuid() in a user namespace properly swaps active references.
+ * Create a user namespace with multiple UIDs mapped, then setuid() between them.
+ * Verify that the user namespace remains active throughout.
+ */
+TEST(setuid_preserves_active_refs)
+{
+	pid_t pid;
+	int status;
+	__u64 userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 child_userns_id;
+		uid_t orig_uid = getuid();
+		int setuid_count;
+
+		close(pipefd[0]);
+
+		/* Create new user namespace with multiple UIDs mapped (0-9) */
+		userns_fd = get_userns_fd(0, orig_uid, 10);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send namespace ID to parent */
+		write(pipefd[1], &child_userns_id, sizeof(child_userns_id));
+
+		/*
+		 * Perform multiple setuid() calls.
+		 * Each setuid() triggers commit_creds() which should properly
+		 * swap active references via switch_cred_namespaces().
+		 */
+		for (setuid_count = 0; setuid_count < 50; setuid_count++) {
+			uid_t target_uid = (setuid_count % 10);
+			if (setuid(target_uid) < 0) {
+				if (errno != EPERM) {
+					close(pipefd[1]);
+					exit(1);
+				}
+			}
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	if (read(pipefd[0], &userns_id, sizeof(userns_id)) != sizeof(userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace ID from child");
+	}
+	close(pipefd[0]);
+
+	TH_LOG("Child user namespace ID: %llu", (unsigned long long)userns_id);
+
+	/* Verify namespace is active while child is running */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+	ASSERT_TRUE(found);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify namespace becomes inactive after child exits */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	found = false;
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found);
+	TH_LOG("setuid() correctly preserved active references (no leak)");
+}
+
+/*
+ * Test setgid() in a user namespace properly handles active references.
+ */
+TEST(setgid_preserves_active_refs)
+{
+	pid_t pid;
+	int status;
+	__u64 userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 child_userns_id;
+		uid_t orig_uid = getuid();
+		int setgid_count;
+
+		close(pipefd[0]);
+
+		/* Create new user namespace with multiple GIDs mapped */
+		userns_fd = get_userns_fd(0, orig_uid, 10);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		write(pipefd[1], &child_userns_id, sizeof(child_userns_id));
+
+		/* Perform multiple setgid() calls */
+		for (setgid_count = 0; setgid_count < 50; setgid_count++) {
+			gid_t target_gid = (setgid_count % 10);
+			if (setgid(target_gid) < 0) {
+				if (errno != EPERM) {
+					close(pipefd[1]);
+					exit(1);
+				}
+			}
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	if (read(pipefd[0], &userns_id, sizeof(userns_id)) != sizeof(userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace ID from child");
+	}
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify namespace becomes inactive */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found);
+	TH_LOG("setgid() correctly preserved active references (no leak)");
+}
+
+/*
+ * Test setresuid() which changes real, effective, and saved UIDs.
+ * This should properly swap active references via commit_creds().
+ */
+TEST(setresuid_preserves_active_refs)
+{
+	pid_t pid;
+	int status;
+	__u64 userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 child_userns_id;
+		uid_t orig_uid = getuid();
+		int setres_count;
+
+		close(pipefd[0]);
+
+		/* Create new user namespace */
+		userns_fd = get_userns_fd(0, orig_uid, 10);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		write(pipefd[1], &child_userns_id, sizeof(child_userns_id));
+
+		/* Perform multiple setresuid() calls */
+		for (setres_count = 0; setres_count < 30; setres_count++) {
+			uid_t uid1 = (setres_count % 5);
+			uid_t uid2 = ((setres_count + 1) % 5);
+			uid_t uid3 = ((setres_count + 2) % 5);
+
+			if (setresuid(uid1, uid2, uid3) < 0) {
+				if (errno != EPERM) {
+					close(pipefd[1]);
+					exit(1);
+				}
+			}
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	if (read(pipefd[0], &userns_id, sizeof(userns_id)) != sizeof(userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace ID from child");
+	}
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify namespace becomes inactive */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found);
+	TH_LOG("setresuid() correctly preserved active references (no leak)");
+}
+
+/*
+ * Test credential changes across multiple user namespaces.
+ * Create nested user namespaces and verify active reference tracking.
+ */
+TEST(cred_change_nested_userns)
+{
+	pid_t pid;
+	int status;
+	__u64 parent_userns_id, child_userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found_parent = false, found_child = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 parent_id, child_id;
+		uid_t orig_uid = getuid();
+
+		close(pipefd[0]);
+
+		/* Create first user namespace */
+		userns_fd = get_userns_fd(0, orig_uid, 1);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get first namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &parent_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Create nested user namespace */
+		userns_fd = get_userns_fd(0, 0, 1);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get nested namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send both IDs to parent */
+		write(pipefd[1], &parent_id, sizeof(parent_id));
+		write(pipefd[1], &child_id, sizeof(child_id));
+
+		/* Perform some credential changes in nested namespace */
+		setuid(0);
+		setgid(0);
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	/* Read both namespace IDs */
+	if (read(pipefd[0], &parent_userns_id, sizeof(parent_userns_id)) != sizeof(parent_userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get parent namespace ID");
+	}
+
+	if (read(pipefd[0], &child_userns_id, sizeof(child_userns_id)) != sizeof(child_userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get child namespace ID");
+	}
+	close(pipefd[0]);
+
+	TH_LOG("Parent userns: %llu, Child userns: %llu",
+	       (unsigned long long)parent_userns_id,
+	       (unsigned long long)child_userns_id);
+
+	/* Verify both namespaces are active */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == parent_userns_id)
+			found_parent = true;
+		if (ns_ids[i] == child_userns_id)
+			found_child = true;
+	}
+
+	ASSERT_TRUE(found_parent);
+	ASSERT_TRUE(found_child);
+
+	/* Wait for child */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify both namespaces become inactive */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	found_parent = false;
+	found_child = false;
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == parent_userns_id)
+			found_parent = true;
+		if (ns_ids[i] == child_userns_id)
+			found_child = true;
+	}
+
+	ASSERT_FALSE(found_parent);
+	ASSERT_FALSE(found_child);
+	TH_LOG("Nested user namespace credential changes preserved active refs (no leak)");
+}
+
+/*
+ * Test rapid credential changes don't cause refcount imbalances.
+ * This stress-tests the switch_cred_namespaces() logic.
+ */
+TEST(rapid_cred_changes_no_leak)
+{
+	pid_t pid;
+	int status;
+	__u64 userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 child_userns_id;
+		uid_t orig_uid = getuid();
+		int change_count;
+
+		close(pipefd[0]);
+
+		/* Create new user namespace with wider range of UIDs/GIDs */
+		userns_fd = get_userns_fd(0, orig_uid, 100);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		write(pipefd[1], &child_userns_id, sizeof(child_userns_id));
+
+		/*
+		 * Perform many rapid credential changes.
+		 * Mix setuid, setgid, setreuid, setregid, setresuid, setresgid.
+		 */
+		for (change_count = 0; change_count < 200; change_count++) {
+			switch (change_count % 6) {
+			case 0:
+				setuid(change_count % 50);
+				break;
+			case 1:
+				setgid(change_count % 50);
+				break;
+			case 2:
+				setreuid(change_count % 50, (change_count + 1) % 50);
+				break;
+			case 3:
+				setregid(change_count % 50, (change_count + 1) % 50);
+				break;
+			case 4:
+				setresuid(change_count % 50, (change_count + 1) % 50, (change_count + 2) % 50);
+				break;
+			case 5:
+				setresgid(change_count % 50, (change_count + 1) % 50, (change_count + 2) % 50);
+				break;
+			}
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	if (read(pipefd[0], &userns_id, sizeof(userns_id)) != sizeof(userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace ID from child");
+	}
+	close(pipefd[0]);
+
+	TH_LOG("Testing with user namespace ID: %llu", (unsigned long long)userns_id);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify namespace becomes inactive (no leaked active refs) */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found);
+	TH_LOG("200 rapid credential changes completed with no active ref leak");
+}
+
+/*
+ * Test setfsuid/setfsgid which change filesystem UID/GID.
+ * These also trigger credential changes but may have different code paths.
+ */
+TEST(setfsuid_preserves_active_refs)
+{
+	pid_t pid;
+	int status;
+	__u64 userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	ssize_t ret;
+	int i;
+	bool found = false;
+	int pipefd[2];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		int fd, userns_fd;
+		__u64 child_userns_id;
+		uid_t orig_uid = getuid();
+		int change_count;
+
+		close(pipefd[0]);
+
+		/* Create new user namespace */
+		userns_fd = get_userns_fd(0, orig_uid, 10);
+		if (userns_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+			close(userns_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(userns_fd);
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		write(pipefd[1], &child_userns_id, sizeof(child_userns_id));
+
+		/* Perform multiple setfsuid/setfsgid calls */
+		for (change_count = 0; change_count < 50; change_count++) {
+			setfsuid(change_count % 10);
+			setfsgid(change_count % 10);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	if (read(pipefd[0], &userns_id, sizeof(userns_id)) != sizeof(userns_id)) {
+		close(pipefd[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace ID from child");
+	}
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Verify namespace becomes inactive */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == userns_id) {
+			found = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found);
+	TH_LOG("setfsuid/setfsgid correctly preserved active references (no leak)");
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/file_handle_test.c b/tools/testing/selftests/namespaces/file_handle_test.c
new file mode 100644
index 000000000000..064b41ad96b2
--- /dev/null
+++ b/tools/testing/selftests/namespaces/file_handle_test.c
@@ -0,0 +1,1429 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/unistd.h>
+#include "kselftest_harness.h"
+
+#ifndef FD_NSFS_ROOT
+#define FD_NSFS_ROOT -10003 /* Root of the nsfs filesystem */
+#endif
+
+TEST(nsfs_net_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open a namespace file descriptor */
+	ns_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT as unprivileged user */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	if (fd < 0 && errno == EPERM) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "Permission denied for unprivileged user (expected)");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_uts_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open UTS namespace file descriptor */
+	ns_fd = open("/proc/self/ns/uts", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_ipc_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open IPC namespace file descriptor */
+	ns_fd = open("/proc/self/ns/ipc", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_pid_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open PID namespace file descriptor */
+	ns_fd = open("/proc/self/ns/pid", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_mnt_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open mount namespace file descriptor */
+	ns_fd = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_user_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open user namespace file descriptor */
+	ns_fd = open("/proc/self/ns/user", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_cgroup_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open cgroup namespace file descriptor */
+	ns_fd = open("/proc/self/ns/cgroup", O_RDONLY);
+	if (ns_fd < 0) {
+		SKIP(free(handle); return, "cgroup namespace not available");
+	}
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_time_handle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	struct stat st1, st2;
+
+	/* Drop to unprivileged uid/gid */
+	ASSERT_EQ(setresgid(65534, 65534, 65534), 0); /* nogroup */
+	ASSERT_EQ(setresuid(65534, 65534, 65534), 0); /* nobody */
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open time namespace file descriptor */
+	ns_fd = open("/proc/self/ns/time", O_RDONLY);
+	if (ns_fd < 0) {
+		SKIP(free(handle); return, "time namespace not available");
+	}
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Try to open using FD_NSFS_ROOT */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle); close(ns_fd);
+		     return,
+			   "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd, 0);
+
+	/* Verify we opened the correct namespace */
+	ASSERT_EQ(fstat(ns_fd, &st1), 0);
+	ASSERT_EQ(fstat(fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	close(fd);
+	close(ns_fd);
+	free(handle);
+}
+
+TEST(nsfs_user_net_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current network namespace */
+	ns_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create network namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Try to open parent's network namespace handle from new user+net namespace */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+		if (fd >= 0) {
+			/* Should NOT succeed - we're in a different user namespace */
+			write(pipefd[1], "S", 1); /* Unexpected success */
+			close(fd);
+		} else if (errno == ESTALE) {
+			/* Expected: Stale file handle */
+			write(pipefd[1], "P", 1);
+		} else {
+			/* Other error */
+			write(pipefd[1], "F", 1);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new network namespace");
+	}
+
+	/* Should fail with permission denied since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_uts_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current UTS namespace */
+	ns_fd = open("/proc/self/ns/uts", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new UTS namespace */
+		ret = unshare(CLONE_NEWUTS);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create UTS namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Try to open parent's UTS namespace handle from new user+uts namespace */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+		if (fd >= 0) {
+			/* Should NOT succeed - we're in a different user namespace */
+			write(pipefd[1], "S", 1); /* Unexpected success */
+			close(fd);
+		} else if (errno == ESTALE) {
+			/* Expected: Stale file handle */
+			write(pipefd[1], "P", 1);
+		} else {
+			/* Other error */
+			write(pipefd[1], "F", 1);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new UTS namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_ipc_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current IPC namespace */
+	ns_fd = open("/proc/self/ns/ipc", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new IPC namespace */
+		ret = unshare(CLONE_NEWIPC);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create IPC namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Try to open parent's IPC namespace handle from new user+ipc namespace */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+		if (fd >= 0) {
+			/* Should NOT succeed - we're in a different user namespace */
+			write(pipefd[1], "S", 1); /* Unexpected success */
+			close(fd);
+		} else if (errno == ESTALE) {
+			/* Expected: Stale file handle */
+			write(pipefd[1], "P", 1);
+		} else {
+			/* Other error */
+			write(pipefd[1], "F", 1);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new IPC namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_mnt_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current mount namespace */
+	ns_fd = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new mount namespace */
+		ret = unshare(CLONE_NEWNS);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create mount namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Try to open parent's mount namespace handle from new user+mnt namespace */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+		if (fd >= 0) {
+			/* Should NOT succeed - we're in a different user namespace */
+			write(pipefd[1], "S", 1); /* Unexpected success */
+			close(fd);
+		} else if (errno == ESTALE) {
+			/* Expected: Stale file handle */
+			write(pipefd[1], "P", 1);
+		} else {
+			/* Other error */
+			write(pipefd[1], "F", 1);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new mount namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_cgroup_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current cgroup namespace */
+	ns_fd = open("/proc/self/ns/cgroup", O_RDONLY);
+	if (ns_fd < 0) {
+		SKIP(free(handle); close(pipefd[0]); close(pipefd[1]);
+		     return, "cgroup namespace not available");
+	}
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new cgroup namespace */
+		ret = unshare(CLONE_NEWCGROUP);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create cgroup namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Try to open parent's cgroup namespace handle from new user+cgroup namespace */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+		if (fd >= 0) {
+			/* Should NOT succeed - we're in a different user namespace */
+			write(pipefd[1], "S", 1); /* Unexpected success */
+			close(fd);
+		} else if (errno == ESTALE) {
+			/* Expected: Stale file handle */
+			write(pipefd[1], "P", 1);
+		} else {
+			/* Other error */
+			write(pipefd[1], "F", 1);
+		}
+
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new cgroup namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_pid_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current PID namespace */
+	ns_fd = open("/proc/self/ns/pid", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new PID namespace - requires fork to take effect */
+		ret = unshare(CLONE_NEWPID);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create PID namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Fork again for PID namespace to take effect */
+		pid_t child_pid = fork();
+		if (child_pid < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to fork in PID namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		if (child_pid == 0) {
+			/* Grandchild in new PID namespace */
+			/* Try to open parent's PID namespace handle from new user+pid namespace */
+			fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+			if (fd >= 0) {
+				/* Should NOT succeed - we're in a different user namespace */
+				write(pipefd[1], "S",
+				      1); /* Unexpected success */
+				close(fd);
+			} else if (errno == ESTALE) {
+				/* Expected: Stale file handle */
+				write(pipefd[1], "P", 1);
+			} else {
+				/* Other error */
+				write(pipefd[1], "F", 1);
+			}
+
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Wait for grandchild */
+		waitpid(child_pid, NULL, 0);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new PID namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_user_time_namespace_isolation)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+	pid_t pid;
+	int status;
+	int pipefd[2];
+	char result;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Create pipe for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Get handle for current time namespace */
+	ns_fd = open("/proc/self/ns/time", O_RDONLY);
+	if (ns_fd < 0) {
+		SKIP(free(handle); close(pipefd[0]); close(pipefd[1]);
+		     return, "time namespace not available");
+	}
+
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd); close(pipefd[0]);
+		     close(pipefd[1]);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	close(ns_fd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* First create new user namespace to drop privileges */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			write(pipefd[1], "U",
+			      1); /* Unable to create user namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Write uid/gid mappings to maintain some capabilities */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd < 0 || gid_map_fd < 0 || setgroups_fd < 0) {
+			write(pipefd[1], "M", 1); /* Unable to set mappings */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Disable setgroups to allow gid mapping */
+		write(setgroups_fd, "deny", 4);
+		close(setgroups_fd);
+
+		/* Map current uid/gid to root in the new namespace */
+		char mapping[64];
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+		write(uid_map_fd, mapping, strlen(mapping));
+		close(uid_map_fd);
+
+		snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+		write(gid_map_fd, mapping, strlen(mapping));
+		close(gid_map_fd);
+
+		/* Now create new time namespace - requires fork to take effect */
+		ret = unshare(CLONE_NEWTIME);
+		if (ret < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to create time namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Fork again for time namespace to take effect */
+		pid_t child_pid = fork();
+		if (child_pid < 0) {
+			write(pipefd[1], "N",
+			      1); /* Unable to fork in time namespace */
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		if (child_pid == 0) {
+			/* Grandchild in new time namespace */
+			/* Try to open parent's time namespace handle from new user+time namespace */
+			fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+
+			if (fd >= 0) {
+				/* Should NOT succeed - we're in a different user namespace */
+				write(pipefd[1], "S",
+				      1); /* Unexpected success */
+				close(fd);
+			} else if (errno == ESTALE) {
+				/* Expected: Stale file handle */
+				write(pipefd[1], "P", 1);
+			} else {
+				/* Other error */
+				write(pipefd[1], "F", 1);
+			}
+
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Wait for grandchild */
+		waitpid(child_pid, NULL, 0);
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	ASSERT_EQ(read(pipefd[0], &result, 1), 1);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	if (result == 'U') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new user namespace");
+	}
+	if (result == 'M') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot set uid/gid mappings");
+	}
+	if (result == 'N') {
+		SKIP(free(handle); close(pipefd[0]);
+		     return, "Cannot create new time namespace");
+	}
+
+	/* Should fail with ESTALE since we're in a different user namespace */
+	ASSERT_EQ(result, 'P');
+
+	close(pipefd[0]);
+	free(handle);
+}
+
+TEST(nsfs_open_flags)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int ns_fd;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open a namespace file descriptor */
+	ns_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(ns_fd, 0);
+
+	/* Get handle for the namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(ns_fd, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(ns_fd);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+	ASSERT_GT(handle->handle_bytes, 0);
+
+	/* Test invalid flags that should fail */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_WRONLY);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, EPERM);
+
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDWR);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, EPERM);
+
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_TRUNC);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, EPERM);
+
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_DIRECT);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_TMPFILE);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, EINVAL);
+
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_DIRECTORY);
+	ASSERT_LT(fd, 0);
+	ASSERT_EQ(errno, ENOTDIR);
+
+	close(ns_fd);
+	free(handle);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/init_ino_test.c b/tools/testing/selftests/namespaces/init_ino_test.c
new file mode 100644
index 000000000000..e4394a2fa0a9
--- /dev/null
+++ b/tools/testing/selftests/namespaces/init_ino_test.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2025 Christian Brauner <brauner@kernel.org>
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <linux/nsfs.h>
+
+#include "kselftest_harness.h"
+
+struct ns_info {
+	const char *name;
+	const char *proc_path;
+	unsigned int expected_ino;
+};
+
+static struct ns_info namespaces[] = {
+	{ "ipc", "/proc/1/ns/ipc", IPC_NS_INIT_INO },
+	{ "uts", "/proc/1/ns/uts", UTS_NS_INIT_INO },
+	{ "user", "/proc/1/ns/user", USER_NS_INIT_INO },
+	{ "pid", "/proc/1/ns/pid", PID_NS_INIT_INO },
+	{ "cgroup", "/proc/1/ns/cgroup", CGROUP_NS_INIT_INO },
+	{ "time", "/proc/1/ns/time", TIME_NS_INIT_INO },
+	{ "net", "/proc/1/ns/net", NET_NS_INIT_INO },
+	{ "mnt", "/proc/1/ns/mnt", MNT_NS_INIT_INO },
+};
+
+TEST(init_namespace_inodes)
+{
+	struct stat st;
+
+	for (int i = 0; i < sizeof(namespaces) / sizeof(namespaces[0]); i++) {
+		int ret = stat(namespaces[i].proc_path, &st);
+
+		/* Some namespaces might not be available (e.g., time namespace on older kernels) */
+		if (ret < 0) {
+			if (errno == ENOENT) {
+				ksft_test_result_skip("%s namespace not available\n",
+						      namespaces[i].name);
+				continue;
+			}
+			ASSERT_GE(ret, 0)
+			TH_LOG("Failed to stat %s: %s",
+			       namespaces[i].proc_path, strerror(errno));
+		}
+
+		ASSERT_EQ(st.st_ino, namespaces[i].expected_ino)
+			TH_LOG("Namespace %s has inode 0x%lx, expected 0x%x",
+			       namespaces[i].name, st.st_ino, namespaces[i].expected_ino);
+
+		ksft_print_msg("Namespace %s: inode 0x%lx matches expected 0x%x\n",
+			       namespaces[i].name, st.st_ino, namespaces[i].expected_ino);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/listns_efault_test.c b/tools/testing/selftests/namespaces/listns_efault_test.c
new file mode 100644
index 000000000000..c7ed4023d7a8
--- /dev/null
+++ b/tools/testing/selftests/namespaces/listns_efault_test.c
@@ -0,0 +1,530 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/nsfs.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "../pidfd/pidfd.h"
+#include "wrappers.h"
+
+/*
+ * Test listns() error handling with invalid buffer addresses.
+ *
+ * When the buffer pointer is invalid (e.g., crossing page boundaries
+ * into unmapped memory), listns() returns EINVAL.
+ *
+ * This test also creates mount namespaces that get destroyed during
+ * iteration, testing that namespace cleanup happens outside the RCU
+ * read lock.
+ */
+TEST(listns_partial_fault_with_ns_cleanup)
+{
+	void *map;
+	__u64 *ns_ids;
+	ssize_t ret;
+	long page_size;
+	pid_t pid, iter_pid;
+	int pidfds[5];
+	int sv[5][2];
+	int iter_pidfd;
+	int i, status;
+	char c;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	ASSERT_GT(page_size, 0);
+
+	/*
+	 * Map two pages:
+	 * - First page: readable and writable
+	 * - Second page: will be unmapped to trigger EFAULT
+	 */
+	map = mmap(NULL, page_size * 2, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(map, MAP_FAILED);
+
+	/* Unmap the second page */
+	ret = munmap((char *)map + page_size, page_size);
+	ASSERT_EQ(ret, 0);
+
+	/*
+	 * Position the buffer pointer so there's room for exactly one u64
+	 * before the page boundary. The second u64 would fall into the
+	 * unmapped page.
+	 */
+	ns_ids = ((__u64 *)((char *)map + page_size)) - 1;
+
+	/*
+	 * Create a separate process to run listns() in a loop concurrently
+	 * with namespace creation and destruction.
+	 */
+	iter_pid = create_child(&iter_pidfd, 0);
+	ASSERT_NE(iter_pid, -1);
+
+	if (iter_pid == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = 0,  /* All types */
+			.spare2 = 0,
+			.user_ns_id = 0,  /* Global listing */
+		};
+		int iter_ret;
+
+		/*
+		 * Loop calling listns() until killed.
+		 * The kernel should:
+		 * 1. Successfully write the first namespace ID (within valid page)
+		 * 2. Fail with EFAULT when trying to write the second ID (unmapped page)
+		 * 3. Handle concurrent namespace destruction without deadlock
+		 */
+		while (1) {
+			iter_ret = sys_listns(&req, ns_ids, 2, 0);
+
+			if (iter_ret == -1 && errno == ENOSYS)
+				_exit(PIDFD_SKIP);
+		}
+	}
+
+	/* Small delay to let iterator start looping */
+	usleep(50000);
+
+	/*
+	 * Create several child processes, each in its own mount namespace.
+	 * These will be destroyed while the iterator is running listns().
+	 */
+	for (i = 0; i < 5; i++) {
+		/* Create socketpair for synchronization */
+		ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv[i]), 0);
+
+		pid = create_child(&pidfds[i], CLONE_NEWNS);
+		ASSERT_NE(pid, -1);
+
+		if (pid == 0) {
+			close(sv[i][0]); /* Close parent end */
+
+			if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0))
+				_exit(1);
+
+			/* Child: create a couple of tmpfs mounts */
+			if (mkdir("/tmp/test_mnt1", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+			if (mkdir("/tmp/test_mnt2", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+
+			if (mount("tmpfs", "/tmp/test_mnt1", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+			if (mount("tmpfs", "/tmp/test_mnt2", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+
+			/* Signal parent that setup is complete */
+			if (write_nointr(sv[i][1], "R", 1) != 1)
+				_exit(1);
+
+			/* Wait for parent to signal us to exit */
+			if (read_nointr(sv[i][1], &c, 1) != 1)
+				_exit(1);
+
+			close(sv[i][1]);
+			_exit(0);
+		}
+
+		close(sv[i][1]); /* Close child end */
+	}
+
+	/* Wait for all children to finish setup */
+	for (i = 0; i < 5; i++) {
+		ret = read_nointr(sv[i][0], &c, 1);
+		ASSERT_EQ(ret, 1);
+		ASSERT_EQ(c, 'R');
+	}
+
+	/*
+	 * Signal children to exit. This will destroy their mount namespaces
+	 * while listns() is iterating the namespace tree.
+	 * This tests that cleanup happens outside the RCU read lock.
+	 */
+	for (i = 0; i < 5; i++)
+		write_nointr(sv[i][0], "X", 1);
+
+	/* Wait for all mount namespace children to exit and cleanup */
+	for (i = 0; i < 5; i++) {
+		waitpid(-1, NULL, 0);
+		close(sv[i][0]);
+		close(pidfds[i]);
+	}
+
+	/* Kill iterator and wait for it */
+	sys_pidfd_send_signal(iter_pidfd, SIGKILL, NULL, 0);
+	ret = waitpid(iter_pid, &status, 0);
+	ASSERT_EQ(ret, iter_pid);
+	close(iter_pidfd);
+
+	/* Should have been killed */
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGKILL);
+
+	/* Clean up */
+	munmap(map, page_size);
+}
+
+/*
+ * Test listns() error handling when the entire buffer is invalid.
+ * This is a sanity check that basic invalid pointer detection works.
+ */
+TEST(listns_complete_fault)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 *ns_ids;
+	ssize_t ret;
+
+	/* Use a clearly invalid pointer */
+	ns_ids = (__u64 *)0xdeadbeef;
+
+	ret = sys_listns(&req, ns_ids, 10, 0);
+
+	if (ret == -1 && errno == ENOSYS)
+		SKIP(return, "listns() not supported");
+
+	/* Should fail with EFAULT */
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EFAULT);
+}
+
+/*
+ * Test listns() error handling when the buffer is NULL.
+ */
+TEST(listns_null_buffer)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	ssize_t ret;
+
+	/* NULL buffer with non-zero count should fail */
+	ret = sys_listns(&req, NULL, 10, 0);
+
+	if (ret == -1 && errno == ENOSYS)
+		SKIP(return, "listns() not supported");
+
+	/* Should fail with EFAULT */
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EFAULT);
+}
+
+/*
+ * Test listns() with a buffer that becomes invalid mid-iteration
+ * (after several successful writes), combined with mount namespace
+ * destruction to test RCU cleanup logic.
+ */
+TEST(listns_late_fault_with_ns_cleanup)
+{
+	void *map;
+	__u64 *ns_ids;
+	ssize_t ret;
+	long page_size;
+	pid_t pid, iter_pid;
+	int pidfds[10];
+	int sv[10][2];
+	int iter_pidfd;
+	int i, status;
+	char c;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	ASSERT_GT(page_size, 0);
+
+	/* Map two pages */
+	map = mmap(NULL, page_size * 2, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(map, MAP_FAILED);
+
+	/* Unmap the second page */
+	ret = munmap((char *)map + page_size, page_size);
+	ASSERT_EQ(ret, 0);
+
+	/*
+	 * Position buffer so we can write several u64s successfully
+	 * before hitting the page boundary.
+	 */
+	ns_ids = ((__u64 *)((char *)map + page_size)) - 5;
+
+	/*
+	 * Create a separate process to run listns() concurrently.
+	 */
+	iter_pid = create_child(&iter_pidfd, 0);
+	ASSERT_NE(iter_pid, -1);
+
+	if (iter_pid == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = 0,
+			.spare2 = 0,
+			.user_ns_id = 0,
+		};
+		int iter_ret;
+
+		/*
+		 * Loop calling listns() until killed.
+		 * Request 10 namespace IDs while namespaces are being destroyed.
+		 * This tests:
+		 * 1. EFAULT handling when buffer becomes invalid
+		 * 2. Namespace cleanup outside RCU read lock during iteration
+		 */
+		while (1) {
+			iter_ret = sys_listns(&req, ns_ids, 10, 0);
+
+			if (iter_ret == -1 && errno == ENOSYS)
+				_exit(PIDFD_SKIP);
+		}
+	}
+
+	/* Small delay to let iterator start looping */
+	usleep(50000);
+
+	/*
+	 * Create more children with mount namespaces to increase the
+	 * likelihood that namespace cleanup happens during iteration.
+	 */
+	for (i = 0; i < 10; i++) {
+		/* Create socketpair for synchronization */
+		ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv[i]), 0);
+
+		pid = create_child(&pidfds[i], CLONE_NEWNS);
+		ASSERT_NE(pid, -1);
+
+		if (pid == 0) {
+			close(sv[i][0]); /* Close parent end */
+
+			if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0))
+				_exit(1);
+
+			/* Child: create tmpfs mounts */
+			if (mkdir("/tmp/test_mnt1", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+			if (mkdir("/tmp/test_mnt2", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+
+			if (mount("tmpfs", "/tmp/test_mnt1", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+			if (mount("tmpfs", "/tmp/test_mnt2", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+
+			/* Signal parent that setup is complete */
+			if (write_nointr(sv[i][1], "R", 1) != 1)
+				_exit(1);
+
+			/* Wait for parent to signal us to exit */
+			if (read_nointr(sv[i][1], &c, 1) != 1)
+				_exit(1);
+
+			close(sv[i][1]);
+			_exit(0);
+		}
+
+		close(sv[i][1]); /* Close child end */
+	}
+
+	/* Wait for all children to finish setup */
+	for (i = 0; i < 10; i++) {
+		ret = read_nointr(sv[i][0], &c, 1);
+		ASSERT_EQ(ret, 1);
+		ASSERT_EQ(c, 'R');
+	}
+
+	/* Kill half the children */
+	for (i = 0; i < 5; i++)
+		write_nointr(sv[i][0], "X", 1);
+
+	/* Small delay to let some exit */
+	usleep(10000);
+
+	/* Kill remaining children */
+	for (i = 5; i < 10; i++)
+		write_nointr(sv[i][0], "X", 1);
+
+	/* Wait for all children and cleanup */
+	for (i = 0; i < 10; i++) {
+		waitpid(-1, NULL, 0);
+		close(sv[i][0]);
+		close(pidfds[i]);
+	}
+
+	/* Kill iterator and wait for it */
+	sys_pidfd_send_signal(iter_pidfd, SIGKILL, NULL, 0);
+	ret = waitpid(iter_pid, &status, 0);
+	ASSERT_EQ(ret, iter_pid);
+	close(iter_pidfd);
+
+	/* Should have been killed */
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGKILL);
+
+	/* Clean up */
+	munmap(map, page_size);
+}
+
+/*
+ * Test specifically focused on mount namespace cleanup during EFAULT.
+ * Filter for mount namespaces only.
+ */
+TEST(listns_mnt_ns_cleanup_on_fault)
+{
+	void *map;
+	__u64 *ns_ids;
+	ssize_t ret;
+	long page_size;
+	pid_t pid, iter_pid;
+	int pidfds[8];
+	int sv[8][2];
+	int iter_pidfd;
+	int i, status;
+	char c;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	ASSERT_GT(page_size, 0);
+
+	/* Set up partial fault buffer */
+	map = mmap(NULL, page_size * 2, PROT_READ | PROT_WRITE,
+		   MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(map, MAP_FAILED);
+
+	ret = munmap((char *)map + page_size, page_size);
+	ASSERT_EQ(ret, 0);
+
+	/* Position for 3 successful writes, then fault */
+	ns_ids = ((__u64 *)((char *)map + page_size)) - 3;
+
+	/*
+	 * Create a separate process to run listns() concurrently.
+	 */
+	iter_pid = create_child(&iter_pidfd, 0);
+	ASSERT_NE(iter_pid, -1);
+
+	if (iter_pid == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = CLONE_NEWNS,  /* Only mount namespaces */
+			.spare2 = 0,
+			.user_ns_id = 0,
+		};
+		int iter_ret;
+
+		/*
+		 * Loop calling listns() until killed.
+		 * Call listns() to race with namespace destruction.
+		 */
+		while (1) {
+			iter_ret = sys_listns(&req, ns_ids, 10, 0);
+
+			if (iter_ret == -1 && errno == ENOSYS)
+				_exit(PIDFD_SKIP);
+		}
+	}
+
+	/* Small delay to let iterator start looping */
+	usleep(50000);
+
+	/* Create children with mount namespaces */
+	for (i = 0; i < 8; i++) {
+		/* Create socketpair for synchronization */
+		ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv[i]), 0);
+
+		pid = create_child(&pidfds[i], CLONE_NEWNS);
+		ASSERT_NE(pid, -1);
+
+		if (pid == 0) {
+			close(sv[i][0]); /* Close parent end */
+
+			if (mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0))
+				_exit(1);
+
+			/* Do some mount operations to make cleanup more interesting */
+			if (mkdir("/tmp/test_mnt1", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+			if (mkdir("/tmp/test_mnt2", 0755) == -1 && errno != EEXIST)
+				_exit(1);
+
+			if (mount("tmpfs", "/tmp/test_mnt1", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+			if (mount("tmpfs", "/tmp/test_mnt2", "tmpfs", 0, NULL) == -1)
+				_exit(1);
+
+			/* Signal parent that setup is complete */
+			if (write_nointr(sv[i][1], "R", 1) != 1)
+				_exit(1);
+
+			/* Wait for parent to signal us to exit */
+			if (read_nointr(sv[i][1], &c, 1) != 1)
+				_exit(1);
+
+			close(sv[i][1]);
+			_exit(0);
+		}
+
+		close(sv[i][1]); /* Close child end */
+	}
+
+	/* Wait for all children to finish setup */
+	for (i = 0; i < 8; i++) {
+		ret = read_nointr(sv[i][0], &c, 1);
+		ASSERT_EQ(ret, 1);
+		ASSERT_EQ(c, 'R');
+	}
+
+	/* Kill children to trigger namespace destruction during iteration */
+	for (i = 0; i < 8; i++)
+		write_nointr(sv[i][0], "X", 1);
+
+	/* Wait for children and cleanup */
+	for (i = 0; i < 8; i++) {
+		waitpid(-1, NULL, 0);
+		close(sv[i][0]);
+		close(pidfds[i]);
+	}
+
+	/* Kill iterator and wait for it */
+	sys_pidfd_send_signal(iter_pidfd, SIGKILL, NULL, 0);
+	ret = waitpid(iter_pid, &status, 0);
+	ASSERT_EQ(ret, iter_pid);
+	close(iter_pidfd);
+
+	/* Should have been killed */
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(WTERMSIG(status), SIGKILL);
+
+	munmap(map, page_size);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/listns_pagination_bug.c b/tools/testing/selftests/namespaces/listns_pagination_bug.c
new file mode 100644
index 000000000000..da7d33f96397
--- /dev/null
+++ b/tools/testing/selftests/namespaces/listns_pagination_bug.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+/*
+ * Minimal test case to reproduce KASAN out-of-bounds in listns pagination.
+ *
+ * The bug occurs when:
+ * 1. Filtering by a specific namespace type (e.g., CLONE_NEWUSER)
+ * 2. Using pagination (req.ns_id != 0)
+ * 3. The lookup_ns_id_at() call in do_listns() passes ns_type=0 instead of
+ *    the filtered type, causing it to search the unified tree and potentially
+ *    return a namespace of the wrong type.
+ */
+TEST(pagination_with_type_filter)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,  /* Filter by user namespace */
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	pid_t pids[10];
+	int num_children = 10;
+	int i;
+	int sv[2];
+	__u64 first_batch[3];
+	ssize_t ret;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	/* Create children with user namespaces */
+	for (i = 0; i < num_children; i++) {
+		pids[i] = fork();
+		ASSERT_GE(pids[i], 0);
+
+		if (pids[i] == 0) {
+			char c;
+			close(sv[0]);
+
+			if (setup_userns() < 0) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Signal parent we're ready */
+			if (write(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Wait for parent signal to exit */
+			if (read(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			close(sv[1]);
+			exit(0);
+		}
+	}
+
+	close(sv[1]);
+
+	/* Wait for all children to signal ready */
+	for (i = 0; i < num_children; i++) {
+		char c;
+		if (read(sv[0], &c, 1) != 1) {
+			close(sv[0]);
+			for (int j = 0; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	/* First batch - this should work */
+	ret = sys_listns(&req, first_batch, 3, 0);
+	if (ret < 0) {
+		if (errno == ENOSYS) {
+			close(sv[0]);
+			for (i = 0; i < num_children; i++)
+				kill(pids[i], SIGKILL);
+			for (i = 0; i < num_children; i++)
+				waitpid(pids[i], NULL, 0);
+			SKIP(return, "listns() not supported");
+		}
+		ASSERT_GE(ret, 0);
+	}
+
+	TH_LOG("First batch returned %zd entries", ret);
+
+	if (ret == 3) {
+		__u64 second_batch[3];
+
+		/* Second batch - pagination triggers the bug */
+		req.ns_id = first_batch[2];  /* Continue from last ID */
+		ret = sys_listns(&req, second_batch, 3, 0);
+
+		TH_LOG("Second batch returned %zd entries", ret);
+		ASSERT_GE(ret, 0);
+	}
+
+	/* Signal all children to exit */
+	for (i = 0; i < num_children; i++) {
+		char c = 'X';
+		if (write(sv[0], &c, 1) != 1) {
+			close(sv[0]);
+			for (int j = i; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	close(sv[0]);
+
+	/* Cleanup */
+	for (i = 0; i < num_children; i++) {
+		int status;
+		waitpid(pids[i], &status, 0);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/listns_permissions_test.c b/tools/testing/selftests/namespaces/listns_permissions_test.c
new file mode 100644
index 000000000000..82d818751a5f
--- /dev/null
+++ b/tools/testing/selftests/namespaces/listns_permissions_test.c
@@ -0,0 +1,759 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/nsfs.h>
+#include <sys/capability.h>
+#include <sys/ioctl.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+/*
+ * Test that unprivileged users can only see namespaces they're currently in.
+ * Create a namespace, drop privileges, verify we can only see our own namespaces.
+ */
+TEST(listns_unprivileged_current_only)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[100];
+	ssize_t ret;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool found_ours;
+	int unexpected_count;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 our_netns_id;
+		bool found_ours;
+		int unexpected_count;
+
+		close(pipefd[0]);
+
+		/* Create user namespace to be unprivileged */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Create a network namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get our network namespace ID */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &our_netns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Now we're unprivileged - list all network namespaces */
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* We should only see our own network namespace */
+		found_ours = false;
+		unexpected_count = 0;
+
+		for (ssize_t i = 0; i < ret; i++) {
+			if (ns_ids[i] == our_netns_id) {
+				found_ours = true;
+			} else {
+				/* This is either init_net (which we can see) or unexpected */
+				unexpected_count++;
+			}
+		}
+
+		/* Send results to parent */
+		write(pipefd[1], &found_ours, sizeof(found_ours));
+		write(pipefd[1], &unexpected_count, sizeof(unexpected_count));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	found_ours = false;
+	unexpected_count = 0;
+	read(pipefd[0], &found_ours, sizeof(found_ours));
+	read(pipefd[0], &unexpected_count, sizeof(unexpected_count));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Child should have seen its own namespace */
+	ASSERT_TRUE(found_ours);
+
+	TH_LOG("Unprivileged child saw its own namespace, plus %d others (likely init_net)",
+			unexpected_count);
+}
+
+/*
+ * Test that users with CAP_SYS_ADMIN in a user namespace can see
+ * all namespaces owned by that user namespace.
+ */
+TEST(listns_cap_sys_admin_in_userns)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,  /* All types */
+		.spare2 = 0,
+		.user_ns_id = 0,  /* Will be set to our created user namespace */
+	};
+	__u64 ns_ids[100];
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool success;
+	ssize_t count;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 userns_id;
+		ssize_t ret;
+		int min_expected;
+		bool success;
+
+		close(pipefd[0]);
+
+		/* Create user namespace - we'll have CAP_SYS_ADMIN in it */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get the user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Create several namespaces owned by this user namespace */
+		unshare(CLONE_NEWNET);
+		unshare(CLONE_NEWUTS);
+		unshare(CLONE_NEWIPC);
+
+		/* List namespaces owned by our user namespace */
+		req.user_ns_id = userns_id;
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/*
+		 * We have CAP_SYS_ADMIN in this user namespace,
+		 * so we should see all namespaces owned by it.
+		 * That includes: net, uts, ipc, and the user namespace itself.
+		 */
+		min_expected = 4;
+		success = (ret >= min_expected);
+
+		write(pipefd[1], &success, sizeof(success));
+		write(pipefd[1], &ret, sizeof(ret));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	success = false;
+	count = 0;
+	read(pipefd[0], &success, sizeof(success));
+	read(pipefd[0], &count, sizeof(count));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_TRUE(success);
+	TH_LOG("User with CAP_SYS_ADMIN saw %zd namespaces owned by their user namespace",
+			count);
+}
+
+/*
+ * Test that users cannot see namespaces from unrelated user namespaces.
+ * Create two sibling user namespaces, verify they can't see each other's
+ * owned namespaces.
+ */
+TEST(listns_cannot_see_sibling_userns_namespaces)
+{
+	int pipefd[2];
+	pid_t pid1, pid2;
+	int status;
+	__u64 netns_a_id;
+	int pipefd2[2];
+	bool found_sibling_netns;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	/* Fork first child - creates user namespace A */
+	pid1 = fork();
+	ASSERT_GE(pid1, 0);
+
+	if (pid1 == 0) {
+		int fd;
+		__u64 netns_a_id;
+		char buf;
+
+		close(pipefd[0]);
+
+		/* Create user namespace A */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Create network namespace owned by user namespace A */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get network namespace ID */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &netns_a_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send namespace ID to parent */
+		write(pipefd[1], &netns_a_id, sizeof(netns_a_id));
+
+		/* Keep alive for sibling to check */
+		read(pipefd[1], &buf, 1);
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent reads namespace A ID */
+	close(pipefd[1]);
+	netns_a_id = 0;
+	read(pipefd[0], &netns_a_id, sizeof(netns_a_id));
+
+	TH_LOG("User namespace A created network namespace with ID %llu",
+	       (unsigned long long)netns_a_id);
+
+	/* Fork second child - creates user namespace B */
+	ASSERT_EQ(pipe(pipefd2), 0);
+
+	pid2 = fork();
+	ASSERT_GE(pid2, 0);
+
+	if (pid2 == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = CLONE_NEWNET,
+			.spare2 = 0,
+			.user_ns_id = 0,
+		};
+		__u64 ns_ids[100];
+		ssize_t ret;
+		bool found_sibling_netns;
+
+		close(pipefd[0]);
+		close(pipefd2[0]);
+
+		/* Create user namespace B (sibling to A) */
+		if (setup_userns() < 0) {
+			close(pipefd2[1]);
+			exit(1);
+		}
+
+		/* Try to list all network namespaces */
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+		found_sibling_netns = false;
+		if (ret > 0) {
+			for (ssize_t i = 0; i < ret; i++) {
+				if (ns_ids[i] == netns_a_id) {
+					found_sibling_netns = true;
+					break;
+				}
+			}
+		}
+
+		/* We should NOT see the sibling's network namespace */
+		write(pipefd2[1], &found_sibling_netns, sizeof(found_sibling_netns));
+		close(pipefd2[1]);
+		exit(0);
+	}
+
+	/* Parent reads result from second child */
+	close(pipefd2[1]);
+	found_sibling_netns = false;
+	read(pipefd2[0], &found_sibling_netns, sizeof(found_sibling_netns));
+	close(pipefd2[0]);
+
+	/* Signal first child to exit */
+	close(pipefd[0]);
+
+	/* Wait for both children */
+	waitpid(pid2, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+
+	waitpid(pid1, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+
+	/* Second child should NOT have seen first child's namespace */
+	ASSERT_FALSE(found_sibling_netns);
+	TH_LOG("User namespace B correctly could not see sibling namespace A's network namespace");
+}
+
+/*
+ * Test permission checking with LISTNS_CURRENT_USER.
+ * Verify that listing with LISTNS_CURRENT_USER respects permissions.
+ */
+TEST(listns_current_user_permissions)
+{
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool success;
+	ssize_t count;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = 0,
+			.spare2 = 0,
+			.user_ns_id = LISTNS_CURRENT_USER,
+		};
+		__u64 ns_ids[100];
+		ssize_t ret;
+		bool success;
+
+		close(pipefd[0]);
+
+		/* Create user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Create some namespaces owned by this user namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (unshare(CLONE_NEWUTS) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* List with LISTNS_CURRENT_USER - should see our owned namespaces */
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+		success = (ret >= 3);  /* At least user, net, uts */
+		write(pipefd[1], &success, sizeof(success));
+		write(pipefd[1], &ret, sizeof(ret));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	success = false;
+	count = 0;
+	read(pipefd[0], &success, sizeof(success));
+	read(pipefd[0], &count, sizeof(count));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_TRUE(success);
+	TH_LOG("LISTNS_CURRENT_USER returned %zd namespaces", count);
+}
+
+/*
+ * Test that CAP_SYS_ADMIN in parent user namespace allows seeing
+ * child user namespace's owned namespaces.
+ */
+TEST(listns_parent_userns_cap_sys_admin)
+{
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool found_child_userns;
+	ssize_t count;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 parent_userns_id;
+		__u64 child_userns_id;
+		struct ns_id_req req;
+		__u64 ns_ids[100];
+		ssize_t ret;
+		bool found_child_userns;
+
+		close(pipefd[0]);
+
+		/* Create parent user namespace - we have CAP_SYS_ADMIN in it */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get parent user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &parent_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Create child user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get child user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Create namespaces owned by child user namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* List namespaces owned by parent user namespace */
+		req.size = sizeof(req);
+		req.spare = 0;
+		req.ns_id = 0;
+		req.ns_type = 0;
+		req.spare2 = 0;
+		req.user_ns_id = parent_userns_id;
+
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+		/* Should see child user namespace in the list */
+		found_child_userns = false;
+		if (ret > 0) {
+			for (ssize_t i = 0; i < ret; i++) {
+				if (ns_ids[i] == child_userns_id) {
+					found_child_userns = true;
+					break;
+				}
+			}
+		}
+
+		write(pipefd[1], &found_child_userns, sizeof(found_child_userns));
+		write(pipefd[1], &ret, sizeof(ret));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	found_child_userns = false;
+	count = 0;
+	read(pipefd[0], &found_child_userns, sizeof(found_child_userns));
+	read(pipefd[0], &count, sizeof(count));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_TRUE(found_child_userns);
+	TH_LOG("Process with CAP_SYS_ADMIN in parent user namespace saw child user namespace (total: %zd)",
+			count);
+}
+
+/*
+ * Test that we can see user namespaces we have CAP_SYS_ADMIN inside of.
+ * This is different from seeing namespaces owned by a user namespace.
+ */
+TEST(listns_cap_sys_admin_inside_userns)
+{
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool found_ours;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 our_userns_id;
+		struct ns_id_req req;
+		__u64 ns_ids[100];
+		ssize_t ret;
+		bool found_ours;
+
+		close(pipefd[0]);
+
+		/* Create user namespace - we have CAP_SYS_ADMIN inside it */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get our user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &our_userns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* List all user namespaces globally */
+		req.size = sizeof(req);
+		req.spare = 0;
+		req.ns_id = 0;
+		req.ns_type = CLONE_NEWUSER;
+		req.spare2 = 0;
+		req.user_ns_id = 0;
+
+		ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+		/* We should be able to see our own user namespace */
+		found_ours = false;
+		if (ret > 0) {
+			for (ssize_t i = 0; i < ret; i++) {
+				if (ns_ids[i] == our_userns_id) {
+					found_ours = true;
+					break;
+				}
+			}
+		}
+
+		write(pipefd[1], &found_ours, sizeof(found_ours));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	found_ours = false;
+	read(pipefd[0], &found_ours, sizeof(found_ours));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_TRUE(found_ours);
+	TH_LOG("Process can see user namespace it has CAP_SYS_ADMIN inside of");
+}
+
+/*
+ * Test that dropping CAP_SYS_ADMIN restricts what we can see.
+ */
+TEST(listns_drop_cap_sys_admin)
+{
+	cap_t caps;
+	cap_value_t cap_list[1] = { CAP_SYS_ADMIN };
+
+	/* This test needs to start with CAP_SYS_ADMIN */
+	caps = cap_get_proc();
+	if (!caps) {
+		SKIP(return, "Cannot get capabilities");
+	}
+
+	cap_flag_value_t cap_val;
+	if (cap_get_flag(caps, CAP_SYS_ADMIN, CAP_EFFECTIVE, &cap_val) < 0) {
+		cap_free(caps);
+		SKIP(return, "Cannot check CAP_SYS_ADMIN");
+	}
+
+	if (cap_val != CAP_SET) {
+		cap_free(caps);
+		SKIP(return, "Test needs CAP_SYS_ADMIN to start");
+	}
+	cap_free(caps);
+
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	bool correct;
+	ssize_t count_before, count_after;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		struct ns_id_req req = {
+			.size = sizeof(req),
+			.spare = 0,
+			.ns_id = 0,
+			.ns_type = CLONE_NEWNET,
+			.spare2 = 0,
+			.user_ns_id = LISTNS_CURRENT_USER,
+		};
+		__u64 ns_ids_before[100];
+		ssize_t count_before;
+		__u64 ns_ids_after[100];
+		ssize_t count_after;
+		bool correct;
+
+		close(pipefd[0]);
+
+		/* Create user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Count namespaces with CAP_SYS_ADMIN */
+		count_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+
+		/* Drop CAP_SYS_ADMIN */
+		caps = cap_get_proc();
+		if (caps) {
+			cap_set_flag(caps, CAP_EFFECTIVE, 1, cap_list, CAP_CLEAR);
+			cap_set_flag(caps, CAP_PERMITTED, 1, cap_list, CAP_CLEAR);
+			cap_set_proc(caps);
+			cap_free(caps);
+		}
+
+		/* Ensure we can't regain the capability */
+		prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+
+		/* Count namespaces without CAP_SYS_ADMIN */
+		count_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+
+		/* Without CAP_SYS_ADMIN, we should see same or fewer namespaces */
+		correct = (count_after <= count_before);
+
+		write(pipefd[1], &correct, sizeof(correct));
+		write(pipefd[1], &count_before, sizeof(count_before));
+		write(pipefd[1], &count_after, sizeof(count_after));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+
+	correct = false;
+	count_before = 0;
+	count_after = 0;
+	read(pipefd[0], &correct, sizeof(correct));
+	read(pipefd[0], &count_before, sizeof(count_before));
+	read(pipefd[0], &count_after, sizeof(count_after));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_TRUE(correct);
+	TH_LOG("With CAP_SYS_ADMIN: %zd namespaces, without: %zd namespaces",
+			count_before, count_after);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/listns_test.c b/tools/testing/selftests/namespaces/listns_test.c
new file mode 100644
index 000000000000..8a95789d6a87
--- /dev/null
+++ b/tools/testing/selftests/namespaces/listns_test.c
@@ -0,0 +1,679 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/nsfs.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+/*
+ * Test basic listns() functionality with the unified namespace tree.
+ * List all active namespaces globally.
+ */
+TEST(listns_basic_unified)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,  /* All types */
+		.spare2 = 0,
+		.user_ns_id = 0,  /* Global listing */
+	};
+	__u64 ns_ids[100];
+	ssize_t ret;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+
+	/* Should find at least the initial namespaces */
+	ASSERT_GT(ret, 0);
+	TH_LOG("Found %zd active namespaces", ret);
+
+	/* Verify all returned IDs are non-zero */
+	for (ssize_t i = 0; i < ret; i++) {
+		ASSERT_NE(ns_ids[i], 0);
+		TH_LOG("  [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]);
+	}
+}
+
+/*
+ * Test listns() with type filtering.
+ * List only network namespaces.
+ */
+TEST(listns_filter_by_type)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET,  /* Only network namespaces */
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[100];
+	ssize_t ret;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+	ASSERT_GE(ret, 0);
+
+	/* Should find at least init_net */
+	ASSERT_GT(ret, 0);
+	TH_LOG("Found %zd active network namespaces", ret);
+
+	/* Verify we can open each namespace and it's actually a network namespace */
+	for (ssize_t i = 0; i < ret && i < 5; i++) {
+		struct nsfs_file_handle nsfh = {
+			.ns_id = ns_ids[i],
+			.ns_type = CLONE_NEWNET,
+			.ns_inum = 0,
+		};
+		struct file_handle *fh;
+		int fd;
+
+		fh = (struct file_handle *)malloc(sizeof(*fh) + sizeof(nsfh));
+		ASSERT_NE(fh, NULL);
+		fh->handle_bytes = sizeof(nsfh);
+		fh->handle_type = 0;
+		memcpy(fh->f_handle, &nsfh, sizeof(nsfh));
+
+		fd = open_by_handle_at(-10003, fh, O_RDONLY);
+		free(fh);
+
+		if (fd >= 0) {
+			int ns_type;
+			/* Verify it's a network namespace via ioctl */
+			ns_type = ioctl(fd, NS_GET_NSTYPE);
+			if (ns_type >= 0) {
+				ASSERT_EQ(ns_type, CLONE_NEWNET);
+			}
+			close(fd);
+		}
+	}
+}
+
+/*
+ * Test listns() pagination.
+ * List namespaces in batches.
+ */
+TEST(listns_pagination)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 batch1[2], batch2[2];
+	ssize_t ret1, ret2;
+
+	/* Get first batch */
+	ret1 = sys_listns(&req, batch1, ARRAY_SIZE(batch1), 0);
+	if (ret1 < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+	ASSERT_GE(ret1, 0);
+
+	if (ret1 == 0)
+		SKIP(return, "No namespaces found");
+
+	TH_LOG("First batch: %zd namespaces", ret1);
+
+	/* Get second batch using last ID from first batch */
+	if (ret1 == ARRAY_SIZE(batch1)) {
+		req.ns_id = batch1[ret1 - 1];
+		ret2 = sys_listns(&req, batch2, ARRAY_SIZE(batch2), 0);
+		ASSERT_GE(ret2, 0);
+
+		TH_LOG("Second batch: %zd namespaces (after ns_id=%llu)",
+		       ret2, (unsigned long long)req.ns_id);
+
+		/* If we got more results, verify IDs are monotonically increasing */
+		if (ret2 > 0) {
+			ASSERT_GT(batch2[0], batch1[ret1 - 1]);
+			TH_LOG("Pagination working: %llu > %llu",
+			       (unsigned long long)batch2[0],
+			       (unsigned long long)batch1[ret1 - 1]);
+		}
+	} else {
+		TH_LOG("All namespaces fit in first batch");
+	}
+}
+
+/*
+ * Test listns() with LISTNS_CURRENT_USER.
+ * List namespaces owned by current user namespace.
+ */
+TEST(listns_current_user)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = LISTNS_CURRENT_USER,
+	};
+	__u64 ns_ids[100];
+	ssize_t ret;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+	ASSERT_GE(ret, 0);
+
+	/* Should find at least the initial namespaces if we're in init_user_ns */
+	TH_LOG("Found %zd namespaces owned by current user namespace", ret);
+
+	for (ssize_t i = 0; i < ret; i++)
+		TH_LOG("  [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]);
+}
+
+/*
+ * Test that listns() only returns active namespaces.
+ * Create a namespace, let it become inactive, verify it's not listed.
+ */
+TEST(listns_only_active)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[100], ns_ids_after[100];
+	ssize_t ret_before, ret_after;
+	int pipefd[2];
+	pid_t pid;
+	__u64 new_ns_id = 0;
+	int status;
+
+	/* Get initial list */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+	ASSERT_GE(ret_before, 0);
+
+	TH_LOG("Before: %zd active network namespaces", ret_before);
+
+	/* Create a new namespace in a child process and get its ID */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 ns_id;
+
+		close(pipefd[0]);
+
+		/* Create new network namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get its ID */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &ns_id) < 0) {
+			close(fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send ID to parent */
+		write(pipefd[1], &ns_id, sizeof(ns_id));
+		close(pipefd[1]);
+
+		/* Keep namespace active briefly */
+		usleep(100000);
+		exit(0);
+	}
+
+	/* Parent reads the new namespace ID */
+	{
+		int bytes;
+
+		close(pipefd[1]);
+		bytes = read(pipefd[0], &new_ns_id, sizeof(new_ns_id));
+		close(pipefd[0]);
+
+		if (bytes == sizeof(new_ns_id)) {
+			__u64 ns_ids_during[100];
+			int ret_during;
+
+			TH_LOG("Child created namespace with ID %llu", (unsigned long long)new_ns_id);
+
+			/* List namespaces while child is still alive - should see new one */
+			ret_during = sys_listns(&req, ns_ids_during, ARRAY_SIZE(ns_ids_during), 0);
+			ASSERT_GE(ret_during, 0);
+			TH_LOG("During: %d active network namespaces", ret_during);
+
+			/* Should have more namespaces than before */
+			ASSERT_GE(ret_during, ret_before);
+		}
+	}
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+
+	/* Give time for namespace to become inactive */
+	usleep(100000);
+
+	/* List namespaces after child exits - should not see new one */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+	TH_LOG("After: %zd active network namespaces", ret_after);
+
+	/* Verify the new namespace ID is not in the after list */
+	if (new_ns_id != 0) {
+		bool found = false;
+
+		for (ssize_t i = 0; i < ret_after; i++) {
+			if (ns_ids_after[i] == new_ns_id) {
+				found = true;
+				break;
+			}
+		}
+		ASSERT_FALSE(found);
+	}
+}
+
+/*
+ * Test listns() with specific user namespace ID.
+ * Create a user namespace and list namespaces it owns.
+ */
+TEST(listns_specific_userns)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,  /* Will be filled with created userns ID */
+	};
+	__u64 ns_ids[100];
+	int sv[2];
+	pid_t pid;
+	int status;
+	__u64 user_ns_id = 0;
+	int bytes;
+	ssize_t ret;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		__u64 ns_id;
+		char buf;
+
+		close(sv[0]);
+
+		/* Create new user namespace */
+		if (setup_userns() < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		/* Get user namespace ID */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &ns_id) < 0) {
+			close(fd);
+			close(sv[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send ID to parent */
+		if (write(sv[1], &ns_id, sizeof(ns_id)) != sizeof(ns_id)) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		/* Create some namespaces owned by this user namespace */
+		unshare(CLONE_NEWNET);
+		unshare(CLONE_NEWUTS);
+
+		/* Wait for parent signal */
+		if (read(sv[1], &buf, 1) != 1) {
+			close(sv[1]);
+			exit(1);
+		}
+		close(sv[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(sv[1]);
+	bytes = read(sv[0], &user_ns_id, sizeof(user_ns_id));
+
+	if (bytes != sizeof(user_ns_id)) {
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get user namespace ID from child");
+	}
+
+	TH_LOG("Child created user namespace with ID %llu", (unsigned long long)user_ns_id);
+
+	/* List namespaces owned by this user namespace */
+	req.user_ns_id = user_ns_id;
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+	if (ret < 0) {
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		if (errno == ENOSYS) {
+			SKIP(return, "listns() not supported");
+		}
+		ASSERT_GE(ret, 0);
+	}
+
+	TH_LOG("Found %zd namespaces owned by user namespace %llu", ret,
+	       (unsigned long long)user_ns_id);
+
+	/* Should find at least the network and UTS namespaces we created */
+	if (ret > 0) {
+		for (ssize_t i = 0; i < ret && i < 10; i++)
+			TH_LOG("  [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]);
+	}
+
+	/* Signal child to exit */
+	if (write(sv[0], "X", 1) != 1) {
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		ASSERT_TRUE(false);
+	}
+	close(sv[0]);
+	waitpid(pid, &status, 0);
+}
+
+/*
+ * Test listns() with multiple namespace types filter.
+ */
+TEST(listns_multiple_types)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET | CLONE_NEWUTS,  /* Network and UTS */
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[100];
+	ssize_t ret;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s (errno=%d)", strerror(errno), errno);
+		ASSERT_TRUE(false);
+	}
+	ASSERT_GE(ret, 0);
+
+	TH_LOG("Found %zd active network/UTS namespaces", ret);
+
+	for (ssize_t i = 0; i < ret; i++)
+		TH_LOG("  [%zd] ns_id: %llu", i, (unsigned long long)ns_ids[i]);
+}
+
+/*
+ * Test that hierarchical active reference propagation keeps parent
+ * user namespaces visible in listns().
+ */
+TEST(listns_hierarchical_visibility)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 parent_ns_id = 0, child_ns_id = 0;
+	int sv[2];
+	pid_t pid;
+	int status;
+	int bytes;
+	__u64 ns_ids[100];
+	ssize_t ret;
+	bool found_parent, found_child;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int fd;
+		char buf;
+
+		close(sv[0]);
+
+		/* Create parent user namespace */
+		if (setup_userns() < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &parent_ns_id) < 0) {
+			close(fd);
+			close(sv[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Create child user namespace */
+		if (setup_userns() < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		if (ioctl(fd, NS_GET_ID, &child_ns_id) < 0) {
+			close(fd);
+			close(sv[1]);
+			exit(1);
+		}
+		close(fd);
+
+		/* Send both IDs to parent */
+		if (write(sv[1], &parent_ns_id, sizeof(parent_ns_id)) != sizeof(parent_ns_id)) {
+			close(sv[1]);
+			exit(1);
+		}
+		if (write(sv[1], &child_ns_id, sizeof(child_ns_id)) != sizeof(child_ns_id)) {
+			close(sv[1]);
+			exit(1);
+		}
+
+		/* Wait for parent signal */
+		if (read(sv[1], &buf, 1) != 1) {
+			close(sv[1]);
+			exit(1);
+		}
+		close(sv[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(sv[1]);
+
+	/* Read both namespace IDs */
+	bytes = read(sv[0], &parent_ns_id, sizeof(parent_ns_id));
+	bytes += read(sv[0], &child_ns_id, sizeof(child_ns_id));
+
+	if (bytes != (int)(2 * sizeof(__u64))) {
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to get namespace IDs from child");
+	}
+
+	TH_LOG("Parent user namespace ID: %llu", (unsigned long long)parent_ns_id);
+	TH_LOG("Child user namespace ID: %llu", (unsigned long long)child_ns_id);
+
+	/* List all user namespaces */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+
+	if (ret < 0 && errno == ENOSYS) {
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "listns() not supported");
+	}
+
+	ASSERT_GE(ret, 0);
+	TH_LOG("Found %zd active user namespaces", ret);
+
+	/* Both parent and child should be visible (active due to child process) */
+	found_parent = false;
+	found_child = false;
+	for (ssize_t i = 0; i < ret; i++) {
+		if (ns_ids[i] == parent_ns_id)
+			found_parent = true;
+		if (ns_ids[i] == child_ns_id)
+			found_child = true;
+	}
+
+	TH_LOG("Parent namespace %s, child namespace %s",
+	       found_parent ? "found" : "NOT FOUND",
+	       found_child ? "found" : "NOT FOUND");
+
+	ASSERT_TRUE(found_child);
+	/* With hierarchical propagation, parent should also be active */
+	ASSERT_TRUE(found_parent);
+
+	/* Signal child to exit */
+	if (write(sv[0], "X", 1) != 1) {
+		close(sv[0]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		ASSERT_TRUE(false);
+	}
+	close(sv[0]);
+	waitpid(pid, &status, 0);
+}
+
+/*
+ * Test error cases for listns().
+ */
+TEST(listns_error_cases)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[10];
+	int ret;
+
+	/* Test with invalid flags */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0xFFFF);
+	if (errno == ENOSYS) {
+		/* listns() not supported, skip this check */
+	} else {
+		ASSERT_LT(ret, 0);
+		ASSERT_EQ(errno, EINVAL);
+	}
+
+	/* Test with NULL ns_ids array */
+	ret = sys_listns(&req, NULL, 10, 0);
+	ASSERT_LT(ret, 0);
+
+	/* Test with invalid spare field */
+	req.spare = 1;
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (errno == ENOSYS) {
+		/* listns() not supported, skip this check */
+	} else {
+		ASSERT_LT(ret, 0);
+		ASSERT_EQ(errno, EINVAL);
+	}
+	req.spare = 0;
+
+	/* Test with huge nr_ns_ids */
+	ret = sys_listns(&req, ns_ids, 2000000, 0);
+	if (errno == ENOSYS) {
+		/* listns() not supported, skip this check */
+	} else {
+		ASSERT_LT(ret, 0);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/ns_active_ref_test.c b/tools/testing/selftests/namespaces/ns_active_ref_test.c
new file mode 100644
index 000000000000..093268f0efaa
--- /dev/null
+++ b/tools/testing/selftests/namespaces/ns_active_ref_test.c
@@ -0,0 +1,2672 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/nsfs.h>
+#include <sys/mount.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <pthread.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+#ifndef FD_NSFS_ROOT
+#define FD_NSFS_ROOT -10003 /* Root of the nsfs filesystem */
+#endif
+
+#ifndef FILEID_NSFS
+#define FILEID_NSFS 0xf1
+#endif
+
+/*
+ * Test that initial namespaces can be reopened via file handle.
+ * Initial namespaces should have active ref count of 1 from boot.
+ */
+TEST(init_ns_always_active)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd1, fd2;
+	struct stat st1, st2;
+
+	handle = malloc(sizeof(*handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(handle, NULL);
+
+	/* Open initial network namespace */
+	fd1 = open("/proc/1/ns/net", O_RDONLY);
+	ASSERT_GE(fd1, 0);
+
+	/* Get file handle for initial namespace */
+	handle->handle_bytes = MAX_HANDLE_SZ;
+	ret = name_to_handle_at(fd1, "", handle, &mount_id, AT_EMPTY_PATH);
+	if (ret < 0 && errno == EOPNOTSUPP) {
+		SKIP(free(handle); close(fd1);
+		     return, "nsfs doesn't support file handles");
+	}
+	ASSERT_EQ(ret, 0);
+
+	/* Close the namespace fd */
+	close(fd1);
+
+	/* Try to reopen via file handle - should succeed since init ns is always active */
+	fd2 = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (fd2 < 0 && (errno == EINVAL || errno == EOPNOTSUPP)) {
+		SKIP(free(handle);
+		     return, "open_by_handle_at with FD_NSFS_ROOT not supported");
+	}
+	ASSERT_GE(fd2, 0);
+
+	/* Verify we opened the same namespace */
+	fd1 = open("/proc/1/ns/net", O_RDONLY);
+	ASSERT_GE(fd1, 0);
+	ASSERT_EQ(fstat(fd1, &st1), 0);
+	ASSERT_EQ(fstat(fd2, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+
+	close(fd1);
+	close(fd2);
+	free(handle);
+}
+
+/*
+ * Test namespace lifecycle: create a namespace in a child process,
+ * get a file handle while it's active, then try to reopen after
+ * the process exits (namespace becomes inactive).
+ */
+TEST(ns_inactive_after_exit)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+
+	/* Create pipe for passing file handle from child */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Open our new namespace */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Get file handle for the namespace */
+		handle = (struct file_handle *)buf;
+		handle->handle_bytes = MAX_HANDLE_SZ;
+		ret = name_to_handle_at(fd, "", handle, &mount_id, AT_EMPTY_PATH);
+		close(fd);
+
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Send handle to parent */
+		write(pipefd[1], buf, sizeof(*handle) + handle->handle_bytes);
+		close(pipefd[1]);
+
+		/* Exit - namespace should become inactive */
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	/* Read file handle from child */
+	ret = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_GT(ret, 0);
+	handle = (struct file_handle *)buf;
+
+	/* Try to reopen namespace - should fail with ENOENT since it's inactive */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(fd, 0);
+	/* Should fail with ENOENT (namespace inactive) or ESTALE */
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test that a namespace remains active while a process is using it,
+ * even after the creating process exits.
+ */
+TEST(ns_active_with_multiple_processes)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int pipefd[2];
+	int syncpipe[2];
+	pid_t pid1, pid2;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+	char sync_byte;
+
+	/* Create pipes for communication */
+	ASSERT_EQ(pipe(pipefd), 0);
+	ASSERT_EQ(pipe(syncpipe), 0);
+
+	pid1 = fork();
+	ASSERT_GE(pid1, 0);
+
+	if (pid1 == 0) {
+		/* First child - creates namespace */
+		close(pipefd[0]);
+		close(syncpipe[1]);
+
+		/* Create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret < 0) {
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		/* Open and get handle */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		handle = (struct file_handle *)buf;
+		handle->handle_bytes = MAX_HANDLE_SZ;
+		ret = name_to_handle_at(fd, "", handle, &mount_id, AT_EMPTY_PATH);
+		close(fd);
+
+		if (ret < 0) {
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		/* Send handle to parent */
+		write(pipefd[1], buf, sizeof(*handle) + handle->handle_bytes);
+		close(pipefd[1]);
+
+		/* Wait for signal before exiting */
+		read(syncpipe[0], &sync_byte, 1);
+		close(syncpipe[0]);
+		exit(0);
+	}
+
+	/* Parent reads handle */
+	close(pipefd[1]);
+	ret = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+	ASSERT_GT(ret, 0);
+
+	handle = (struct file_handle *)buf;
+
+	/* Create second child that will keep namespace active */
+	pid2 = fork();
+	ASSERT_GE(pid2, 0);
+
+	if (pid2 == 0) {
+		/* Second child - reopens the namespace */
+		close(syncpipe[0]);
+		close(syncpipe[1]);
+
+		/* Open the namespace via handle */
+		fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+		if (fd < 0) {
+			exit(1);
+		}
+
+		/* Join the namespace */
+		ret = setns(fd, CLONE_NEWNET);
+		close(fd);
+		if (ret < 0) {
+			exit(1);
+		}
+
+		/* Sleep to keep namespace active */
+		sleep(1);
+		exit(0);
+	}
+
+	/* Let second child enter the namespace */
+	usleep(100000); /* 100ms */
+
+	/* Signal first child to exit */
+	close(syncpipe[0]);
+	sync_byte = 'X';
+	write(syncpipe[1], &sync_byte, 1);
+	close(syncpipe[1]);
+
+	/* Wait for first child */
+	waitpid(pid1, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+
+	/* Namespace should still be active because second child is using it */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_GE(fd, 0);
+	close(fd);
+
+	/* Wait for second child */
+	waitpid(pid2, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+}
+
+/*
+ * Test user namespace active ref tracking via credential lifecycle
+ */
+TEST(userns_active_ref_lifecycle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new user namespace */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Set up uid/gid mappings */
+		int uid_map_fd = open("/proc/self/uid_map", O_WRONLY);
+		int gid_map_fd = open("/proc/self/gid_map", O_WRONLY);
+		int setgroups_fd = open("/proc/self/setgroups", O_WRONLY);
+
+		if (uid_map_fd >= 0 && gid_map_fd >= 0 && setgroups_fd >= 0) {
+			write(setgroups_fd, "deny", 4);
+			close(setgroups_fd);
+
+			char mapping[64];
+			snprintf(mapping, sizeof(mapping), "0 %d 1", getuid());
+			write(uid_map_fd, mapping, strlen(mapping));
+			close(uid_map_fd);
+
+			snprintf(mapping, sizeof(mapping), "0 %d 1", getgid());
+			write(gid_map_fd, mapping, strlen(mapping));
+			close(gid_map_fd);
+		}
+
+		/* Get file handle */
+		fd = open("/proc/self/ns/user", O_RDONLY);
+		if (fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		handle = (struct file_handle *)buf;
+		handle->handle_bytes = MAX_HANDLE_SZ;
+		ret = name_to_handle_at(fd, "", handle, &mount_id, AT_EMPTY_PATH);
+		close(fd);
+
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Send handle to parent */
+		write(pipefd[1], buf, sizeof(*handle) + handle->handle_bytes);
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+	ret = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_GT(ret, 0);
+	handle = (struct file_handle *)buf;
+
+	/* Namespace should be inactive after all tasks exit */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(fd, 0);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test PID namespace active ref tracking
+ */
+TEST(pidns_active_ref_lifecycle)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new PID namespace */
+		ret = unshare(CLONE_NEWPID);
+		if (ret < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		/* Fork to actually enter the PID namespace */
+		pid_t child = fork();
+		if (child < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		if (child == 0) {
+			/* Grandchild - in new PID namespace */
+			fd = open("/proc/self/ns/pid", O_RDONLY);
+			if (fd < 0) {
+				exit(1);
+			}
+
+			handle = (struct file_handle *)buf;
+			handle->handle_bytes = MAX_HANDLE_SZ;
+			ret = name_to_handle_at(fd, "", handle, &mount_id, AT_EMPTY_PATH);
+			close(fd);
+
+			if (ret < 0) {
+				exit(1);
+			}
+
+			/* Send handle to grandparent */
+			write(pipefd[1], buf, sizeof(*handle) + handle->handle_bytes);
+			close(pipefd[1]);
+			exit(0);
+		}
+
+		/* Wait for grandchild */
+		waitpid(child, NULL, 0);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+	ret = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_GT(ret, 0);
+	handle = (struct file_handle *)buf;
+
+	/* Namespace should be inactive after all processes exit */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(fd, 0);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test that an open file descriptor keeps a namespace active.
+ * Even after the creating process exits, the namespace should remain
+ * active as long as an fd is held open.
+ */
+TEST(ns_fd_keeps_active)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int nsfd;
+	int pipe_child_ready[2];
+	int pipe_parent_ready[2];
+	pid_t pid;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+	char sync_byte;
+	char proc_path[64];
+
+	ASSERT_EQ(pipe(pipe_child_ready), 0);
+	ASSERT_EQ(pipe(pipe_parent_ready), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipe_child_ready[0]);
+		close(pipe_parent_ready[1]);
+
+		TH_LOG("Child: creating new network namespace");
+
+		/* Create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret < 0) {
+			TH_LOG("Child: unshare(CLONE_NEWNET) failed: %s", strerror(errno));
+			close(pipe_child_ready[1]);
+			close(pipe_parent_ready[0]);
+			exit(1);
+		}
+
+		TH_LOG("Child: network namespace created successfully");
+
+		/* Get file handle for the namespace */
+		nsfd = open("/proc/self/ns/net", O_RDONLY);
+		if (nsfd < 0) {
+			TH_LOG("Child: failed to open /proc/self/ns/net: %s", strerror(errno));
+			close(pipe_child_ready[1]);
+			close(pipe_parent_ready[0]);
+			exit(1);
+		}
+
+		TH_LOG("Child: opened namespace fd %d", nsfd);
+
+		handle = (struct file_handle *)buf;
+		handle->handle_bytes = MAX_HANDLE_SZ;
+		ret = name_to_handle_at(nsfd, "", handle, &mount_id, AT_EMPTY_PATH);
+		close(nsfd);
+
+		if (ret < 0) {
+			TH_LOG("Child: name_to_handle_at failed: %s", strerror(errno));
+			close(pipe_child_ready[1]);
+			close(pipe_parent_ready[0]);
+			exit(1);
+		}
+
+		TH_LOG("Child: got file handle (bytes=%u)", handle->handle_bytes);
+
+		/* Send file handle to parent */
+		ret = write(pipe_child_ready[1], buf, sizeof(*handle) + handle->handle_bytes);
+		TH_LOG("Child: sent %d bytes of file handle to parent", ret);
+		close(pipe_child_ready[1]);
+
+		/* Wait for parent to open the fd */
+		TH_LOG("Child: waiting for parent to open fd");
+		ret = read(pipe_parent_ready[0], &sync_byte, 1);
+		close(pipe_parent_ready[0]);
+
+		TH_LOG("Child: parent signaled (read %d bytes), exiting now", ret);
+		/* Exit - namespace should stay active because parent holds fd */
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipe_child_ready[1]);
+	close(pipe_parent_ready[0]);
+
+	TH_LOG("Parent: reading file handle from child");
+
+	/* Read file handle from child */
+	ret = read(pipe_child_ready[0], buf, sizeof(buf));
+	close(pipe_child_ready[0]);
+	ASSERT_GT(ret, 0);
+	handle = (struct file_handle *)buf;
+
+	TH_LOG("Parent: received %d bytes, handle size=%u", ret, handle->handle_bytes);
+
+	/* Open the child's namespace while it's still alive */
+	snprintf(proc_path, sizeof(proc_path), "/proc/%d/ns/net", pid);
+	TH_LOG("Parent: opening child's namespace at %s", proc_path);
+	nsfd = open(proc_path, O_RDONLY);
+	if (nsfd < 0) {
+		TH_LOG("Parent: failed to open %s: %s", proc_path, strerror(errno));
+		close(pipe_parent_ready[1]);
+		kill(pid, SIGKILL);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open child's namespace");
+	}
+
+	TH_LOG("Parent: opened child's namespace, got fd %d", nsfd);
+
+	/* Signal child that we have the fd */
+	sync_byte = 'G';
+	write(pipe_parent_ready[1], &sync_byte, 1);
+	close(pipe_parent_ready[1]);
+	TH_LOG("Parent: signaled child that we have the fd");
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	TH_LOG("Child exited, parent holds fd %d to namespace", nsfd);
+
+	/*
+	 * Namespace should still be ACTIVE because we hold an fd.
+	 * We should be able to reopen it via file handle.
+	 */
+	TH_LOG("Attempting to reopen namespace via file handle (should succeed - fd held)");
+	int fd2 = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_GE(fd2, 0);
+
+	TH_LOG("Successfully reopened namespace via file handle, got fd %d", fd2);
+
+	/* Verify it's the same namespace */
+	struct stat st1, st2;
+	ASSERT_EQ(fstat(nsfd, &st1), 0);
+	ASSERT_EQ(fstat(fd2, &st2), 0);
+	TH_LOG("Namespace inodes: nsfd=%lu, fd2=%lu", st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	close(fd2);
+
+	/* Now close the fd - namespace should become inactive */
+	TH_LOG("Closing fd %d - namespace should become inactive", nsfd);
+	close(nsfd);
+
+	/* Now reopening should fail - namespace is inactive */
+	TH_LOG("Attempting to reopen namespace via file handle (should fail - inactive)");
+	fd2 = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(fd2, 0);
+	/* Should fail with ENOENT (inactive) or ESTALE (gone) */
+	TH_LOG("Reopen failed as expected: %s (errno=%d)", strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test hierarchical active reference propagation.
+ * When a child namespace is active, its owning user namespace should also
+ * be active automatically due to hierarchical active reference propagation.
+ * This ensures parents are always reachable when children are active.
+ */
+TEST(ns_parent_always_reachable)
+{
+	struct file_handle *parent_handle, *child_handle;
+	int ret;
+	int child_nsfd;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 parent_id, child_id;
+	char parent_buf[sizeof(*parent_handle) + MAX_HANDLE_SZ];
+	char child_buf[sizeof(*child_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		TH_LOG("Child: creating parent user namespace and setting up mappings");
+
+		/* Create parent user namespace with mappings */
+		ret = setup_userns();
+		if (ret < 0) {
+			TH_LOG("Child: setup_userns() for parent failed: %s", strerror(errno));
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		TH_LOG("Child: parent user namespace created, now uid=%d gid=%d", getuid(), getgid());
+
+		/* Get namespace ID for parent user namespace */
+		int parent_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (parent_fd < 0) {
+			TH_LOG("Child: failed to open parent /proc/self/ns/user: %s", strerror(errno));
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		TH_LOG("Child: opened parent userns fd %d", parent_fd);
+
+		if (ioctl(parent_fd, NS_GET_ID, &parent_id) < 0) {
+			TH_LOG("Child: NS_GET_ID for parent failed: %s", strerror(errno));
+			close(parent_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(parent_fd);
+
+		TH_LOG("Child: got parent namespace ID %llu", (unsigned long long)parent_id);
+
+		/* Create child user namespace within parent */
+		TH_LOG("Child: creating nested child user namespace");
+		ret = setup_userns();
+		if (ret < 0) {
+			TH_LOG("Child: setup_userns() for child failed: %s", strerror(errno));
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		TH_LOG("Child: nested child user namespace created, uid=%d gid=%d", getuid(), getgid());
+
+		/* Get namespace ID for child user namespace */
+		int child_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (child_fd < 0) {
+			TH_LOG("Child: failed to open child /proc/self/ns/user: %s", strerror(errno));
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		TH_LOG("Child: opened child userns fd %d", child_fd);
+
+		if (ioctl(child_fd, NS_GET_ID, &child_id) < 0) {
+			TH_LOG("Child: NS_GET_ID for child failed: %s", strerror(errno));
+			close(child_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(child_fd);
+
+		TH_LOG("Child: got child namespace ID %llu", (unsigned long long)child_id);
+
+		/* Send both namespace IDs to parent */
+		TH_LOG("Child: sending both namespace IDs to parent");
+		write(pipefd[1], &parent_id, sizeof(parent_id));
+		write(pipefd[1], &child_id, sizeof(child_id));
+		close(pipefd[1]);
+
+		TH_LOG("Child: exiting - parent userns should become inactive");
+		/* Exit - parent user namespace should become inactive */
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	TH_LOG("Parent: reading both namespace IDs from child");
+
+	/* Read both namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &parent_id, sizeof(parent_id));
+	if (ret != sizeof(parent_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read parent namespace ID from child");
+	}
+
+	ret = read(pipefd[0], &child_id, sizeof(child_id));
+	close(pipefd[0]);
+	if (ret != sizeof(child_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read child namespace ID from child");
+	}
+
+	TH_LOG("Parent: received parent_id=%llu, child_id=%llu",
+	       (unsigned long long)parent_id, (unsigned long long)child_id);
+
+	/* Construct file handles from namespace IDs */
+	parent_handle = (struct file_handle *)parent_buf;
+	parent_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	parent_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *parent_fh = (struct nsfs_file_handle *)parent_handle->f_handle;
+	parent_fh->ns_id = parent_id;
+	parent_fh->ns_type = 0;
+	parent_fh->ns_inum = 0;
+
+	child_handle = (struct file_handle *)child_buf;
+	child_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	child_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *child_fh = (struct nsfs_file_handle *)child_handle->f_handle;
+	child_fh->ns_id = child_id;
+	child_fh->ns_type = 0;
+	child_fh->ns_inum = 0;
+
+	TH_LOG("Parent: opening child namespace BEFORE child exits");
+
+	/* Open child namespace while child is still alive to keep it active */
+	child_nsfd = open_by_handle_at(FD_NSFS_ROOT, child_handle, O_RDONLY);
+	if (child_nsfd < 0) {
+		TH_LOG("Failed to open child namespace: %s (errno=%d)", strerror(errno), errno);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open child namespace");
+	}
+
+	TH_LOG("Opened child namespace fd %d", child_nsfd);
+
+	/* Now wait for child to exit */
+	TH_LOG("Parent: waiting for child to exit");
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	TH_LOG("Child process exited, parent holds fd to child namespace");
+
+	/*
+	 * With hierarchical active reference propagation:
+	 * Since the child namespace is active (parent process holds fd),
+	 * the parent user namespace should ALSO be active automatically.
+	 * This is because when we took an active reference on the child,
+	 * it propagated up to the owning user namespace.
+	 */
+	TH_LOG("Attempting to reopen parent namespace (should SUCCEED - hierarchical propagation)");
+	int parent_fd = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_GE(parent_fd, 0);
+
+	TH_LOG("SUCCESS: Parent namespace is active (fd=%d) due to active child", parent_fd);
+
+	/* Verify we can also get parent via NS_GET_USERNS */
+	TH_LOG("Verifying NS_GET_USERNS also works");
+	int parent_fd2 = ioctl(child_nsfd, NS_GET_USERNS);
+	if (parent_fd2 < 0) {
+		close(parent_fd);
+		close(child_nsfd);
+		TH_LOG("NS_GET_USERNS failed: %s (errno=%d)", strerror(errno), errno);
+		SKIP(return, "NS_GET_USERNS not supported or failed");
+	}
+
+	TH_LOG("NS_GET_USERNS succeeded, got parent fd %d", parent_fd2);
+
+	/* Verify both methods give us the same namespace */
+	struct stat st1, st2;
+	ASSERT_EQ(fstat(parent_fd, &st1), 0);
+	ASSERT_EQ(fstat(parent_fd2, &st2), 0);
+	TH_LOG("Parent namespace inodes: parent_fd=%lu, parent_fd2=%lu", st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+
+	/*
+	 * Close child fd - parent should remain active because we still
+	 * hold direct references to it (parent_fd and parent_fd2).
+	 */
+	TH_LOG("Closing child fd - parent should remain active (direct refs held)");
+	close(child_nsfd);
+
+	/* Parent should still be openable */
+	TH_LOG("Verifying parent still active via file handle");
+	int parent_fd3 = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_GE(parent_fd3, 0);
+	close(parent_fd3);
+
+	TH_LOG("Closing all fds to parent namespace");
+	close(parent_fd);
+	close(parent_fd2);
+
+	/* Both should now be inactive */
+	TH_LOG("Attempting to reopen parent (should fail - inactive, no refs)");
+	parent_fd = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_LT(parent_fd, 0);
+	TH_LOG("Parent inactive as expected: %s (errno=%d)", strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test that bind mounts keep namespaces in the tree even when inactive
+ */
+TEST(ns_bind_mount_keeps_in_tree)
+{
+	struct file_handle *handle;
+	int mount_id;
+	int ret;
+	int fd;
+	int pipefd[2];
+	pid_t pid;
+	int status;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+	char tmpfile[] = "/tmp/ns-test-XXXXXX";
+	int tmpfd;
+
+	/* Create temporary file for bind mount */
+	tmpfd = mkstemp(tmpfile);
+	if (tmpfd < 0) {
+		SKIP(return, "Cannot create temporary file");
+	}
+	close(tmpfd);
+
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Unshare mount namespace and make mounts private to avoid propagation */
+		ret = unshare(CLONE_NEWNS);
+		if (ret < 0) {
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+		ret = mount(NULL, "/", NULL, MS_PRIVATE | MS_REC, NULL);
+		if (ret < 0) {
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+
+		/* Create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret < 0) {
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+
+		/* Bind mount the namespace */
+		ret = mount("/proc/self/ns/net", tmpfile, NULL, MS_BIND, NULL);
+		if (ret < 0) {
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+
+		/* Get file handle */
+		fd = open("/proc/self/ns/net", O_RDONLY);
+		if (fd < 0) {
+			umount(tmpfile);
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+
+		handle = (struct file_handle *)buf;
+		handle->handle_bytes = MAX_HANDLE_SZ;
+		ret = name_to_handle_at(fd, "", handle, &mount_id, AT_EMPTY_PATH);
+		close(fd);
+
+		if (ret < 0) {
+			umount(tmpfile);
+			close(pipefd[1]);
+			unlink(tmpfile);
+			exit(1);
+		}
+
+		/* Send handle to parent */
+		write(pipefd[1], buf, sizeof(*handle) + handle->handle_bytes);
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(pipefd[1]);
+	ret = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	ASSERT_GT(ret, 0);
+	handle = (struct file_handle *)buf;
+
+	/*
+	 * Namespace should be inactive but still in tree due to bind mount.
+	 * Reopening should fail with ENOENT (inactive) not ESTALE (not in tree).
+	 */
+	fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(fd, 0);
+	/* Should be ENOENT (inactive) since bind mount keeps it in tree */
+	if (errno != ENOENT && errno != ESTALE) {
+		TH_LOG("Unexpected error: %d", errno);
+	}
+
+	/* Cleanup */
+	umount(tmpfile);
+	unlink(tmpfile);
+}
+
+/*
+ * Test multi-level hierarchy (3+ levels deep).
+ * Grandparent → Parent → Child
+ * When child is active, both parent AND grandparent should be active.
+ */
+TEST(ns_multilevel_hierarchy)
+{
+	struct file_handle *gp_handle, *p_handle, *c_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 gp_id, p_id, c_id;
+	char gp_buf[sizeof(*gp_handle) + MAX_HANDLE_SZ];
+	char p_buf[sizeof(*p_handle) + MAX_HANDLE_SZ];
+	char c_buf[sizeof(*c_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		/* Create grandparent user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int gp_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (gp_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(gp_fd, NS_GET_ID, &gp_id) < 0) {
+			close(gp_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(gp_fd);
+
+		/* Create parent user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int p_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (p_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(p_fd, NS_GET_ID, &p_id) < 0) {
+			close(p_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(p_fd);
+
+		/* Create child user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int c_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (c_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(c_fd, NS_GET_ID, &c_id) < 0) {
+			close(c_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(c_fd);
+
+		/* Send all three namespace IDs */
+		write(pipefd[1], &gp_id, sizeof(gp_id));
+		write(pipefd[1], &p_id, sizeof(p_id));
+		write(pipefd[1], &c_id, sizeof(c_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &gp_id, sizeof(gp_id));
+	if (ret != sizeof(gp_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read grandparent namespace ID from child");
+	}
+
+	ret = read(pipefd[0], &p_id, sizeof(p_id));
+	if (ret != sizeof(p_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read parent namespace ID from child");
+	}
+
+	ret = read(pipefd[0], &c_id, sizeof(c_id));
+	close(pipefd[0]);
+	if (ret != sizeof(c_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read child namespace ID from child");
+	}
+
+	/* Construct file handles from namespace IDs */
+	gp_handle = (struct file_handle *)gp_buf;
+	gp_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	gp_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *gp_fh = (struct nsfs_file_handle *)gp_handle->f_handle;
+	gp_fh->ns_id = gp_id;
+	gp_fh->ns_type = 0;
+	gp_fh->ns_inum = 0;
+
+	p_handle = (struct file_handle *)p_buf;
+	p_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	p_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *p_fh = (struct nsfs_file_handle *)p_handle->f_handle;
+	p_fh->ns_id = p_id;
+	p_fh->ns_type = 0;
+	p_fh->ns_inum = 0;
+
+	c_handle = (struct file_handle *)c_buf;
+	c_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	c_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *c_fh = (struct nsfs_file_handle *)c_handle->f_handle;
+	c_fh->ns_id = c_id;
+	c_fh->ns_type = 0;
+	c_fh->ns_inum = 0;
+
+	/* Open child before process exits */
+	int c_fd = open_by_handle_at(FD_NSFS_ROOT, c_handle, O_RDONLY);
+	if (c_fd < 0) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open child namespace");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/*
+	 * With 3-level hierarchy and child active:
+	 * - Child is active (we hold fd)
+	 * - Parent should be active (propagated from child)
+	 * - Grandparent should be active (propagated from parent)
+	 */
+	TH_LOG("Testing parent active when child is active");
+	int p_fd = open_by_handle_at(FD_NSFS_ROOT, p_handle, O_RDONLY);
+	ASSERT_GE(p_fd, 0);
+
+	TH_LOG("Testing grandparent active when child is active");
+	int gp_fd = open_by_handle_at(FD_NSFS_ROOT, gp_handle, O_RDONLY);
+	ASSERT_GE(gp_fd, 0);
+
+	close(c_fd);
+	close(p_fd);
+	close(gp_fd);
+}
+
+/*
+ * Test multiple children sharing same parent.
+ * Parent should stay active as long as ANY child is active.
+ */
+TEST(ns_multiple_children_same_parent)
+{
+	struct file_handle *p_handle, *c1_handle, *c2_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 p_id, c1_id, c2_id;
+	char p_buf[sizeof(*p_handle) + MAX_HANDLE_SZ];
+	char c1_buf[sizeof(*c1_handle) + MAX_HANDLE_SZ];
+	char c2_buf[sizeof(*c2_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		/* Create parent user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int p_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (p_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(p_fd, NS_GET_ID, &p_id) < 0) {
+			close(p_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(p_fd);
+
+		/* Create first child user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int c1_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (c1_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(c1_fd, NS_GET_ID, &c1_id) < 0) {
+			close(c1_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(c1_fd);
+
+		/* Return to parent user namespace and create second child */
+		/* We can't actually do this easily, so let's create a sibling namespace
+		 * by creating a network namespace instead */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int c2_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (c2_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(c2_fd, NS_GET_ID, &c2_id) < 0) {
+			close(c2_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(c2_fd);
+
+		/* Send all namespace IDs */
+		write(pipefd[1], &p_id, sizeof(p_id));
+		write(pipefd[1], &c1_id, sizeof(c1_id));
+		write(pipefd[1], &c2_id, sizeof(c2_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &p_id, sizeof(p_id));
+	if (ret != sizeof(p_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read parent namespace ID");
+	}
+
+	ret = read(pipefd[0], &c1_id, sizeof(c1_id));
+	if (ret != sizeof(c1_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read first child namespace ID");
+	}
+
+	ret = read(pipefd[0], &c2_id, sizeof(c2_id));
+	close(pipefd[0]);
+	if (ret != sizeof(c2_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read second child namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	p_handle = (struct file_handle *)p_buf;
+	p_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	p_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *p_fh = (struct nsfs_file_handle *)p_handle->f_handle;
+	p_fh->ns_id = p_id;
+	p_fh->ns_type = 0;
+	p_fh->ns_inum = 0;
+
+	c1_handle = (struct file_handle *)c1_buf;
+	c1_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	c1_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *c1_fh = (struct nsfs_file_handle *)c1_handle->f_handle;
+	c1_fh->ns_id = c1_id;
+	c1_fh->ns_type = 0;
+	c1_fh->ns_inum = 0;
+
+	c2_handle = (struct file_handle *)c2_buf;
+	c2_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	c2_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *c2_fh = (struct nsfs_file_handle *)c2_handle->f_handle;
+	c2_fh->ns_id = c2_id;
+	c2_fh->ns_type = 0;
+	c2_fh->ns_inum = 0;
+
+	/* Open both children before process exits */
+	int c1_fd = open_by_handle_at(FD_NSFS_ROOT, c1_handle, O_RDONLY);
+	int c2_fd = open_by_handle_at(FD_NSFS_ROOT, c2_handle, O_RDONLY);
+
+	if (c1_fd < 0 || c2_fd < 0) {
+		if (c1_fd >= 0) close(c1_fd);
+		if (c2_fd >= 0) close(c2_fd);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open child namespaces");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Parent should be active (both children active) */
+	TH_LOG("Both children active - parent should be active");
+	int p_fd = open_by_handle_at(FD_NSFS_ROOT, p_handle, O_RDONLY);
+	ASSERT_GE(p_fd, 0);
+	close(p_fd);
+
+	/* Close first child - parent should STILL be active */
+	TH_LOG("Closing first child - parent should still be active");
+	close(c1_fd);
+	p_fd = open_by_handle_at(FD_NSFS_ROOT, p_handle, O_RDONLY);
+	ASSERT_GE(p_fd, 0);
+	close(p_fd);
+
+	/* Close second child - NOW parent should become inactive */
+	TH_LOG("Closing second child - parent should become inactive");
+	close(c2_fd);
+	p_fd = open_by_handle_at(FD_NSFS_ROOT, p_handle, O_RDONLY);
+	ASSERT_LT(p_fd, 0);
+}
+
+/*
+ * Test that different namespace types with same owner all contribute
+ * active references to the owning user namespace.
+ */
+TEST(ns_different_types_same_owner)
+{
+	struct file_handle *u_handle, *n_handle, *ut_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 u_id, n_id, ut_id;
+	char u_buf[sizeof(*u_handle) + MAX_HANDLE_SZ];
+	char n_buf[sizeof(*n_handle) + MAX_HANDLE_SZ];
+	char ut_buf[sizeof(*ut_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		/* Create user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int u_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (u_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(u_fd, NS_GET_ID, &u_id) < 0) {
+			close(u_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(u_fd);
+
+		/* Create network namespace (owned by user namespace) */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int n_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (n_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(n_fd, NS_GET_ID, &n_id) < 0) {
+			close(n_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(n_fd);
+
+		/* Create UTS namespace (also owned by user namespace) */
+		if (unshare(CLONE_NEWUTS) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ut_fd = open("/proc/self/ns/uts", O_RDONLY);
+		if (ut_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ut_fd, NS_GET_ID, &ut_id) < 0) {
+			close(ut_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ut_fd);
+
+		/* Send all namespace IDs */
+		write(pipefd[1], &u_id, sizeof(u_id));
+		write(pipefd[1], &n_id, sizeof(n_id));
+		write(pipefd[1], &ut_id, sizeof(ut_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &u_id, sizeof(u_id));
+	if (ret != sizeof(u_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user namespace ID");
+	}
+
+	ret = read(pipefd[0], &n_id, sizeof(n_id));
+	if (ret != sizeof(n_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read network namespace ID");
+	}
+
+	ret = read(pipefd[0], &ut_id, sizeof(ut_id));
+	close(pipefd[0]);
+	if (ret != sizeof(ut_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read UTS namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	u_handle = (struct file_handle *)u_buf;
+	u_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	u_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *u_fh = (struct nsfs_file_handle *)u_handle->f_handle;
+	u_fh->ns_id = u_id;
+	u_fh->ns_type = 0;
+	u_fh->ns_inum = 0;
+
+	n_handle = (struct file_handle *)n_buf;
+	n_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	n_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *n_fh = (struct nsfs_file_handle *)n_handle->f_handle;
+	n_fh->ns_id = n_id;
+	n_fh->ns_type = 0;
+	n_fh->ns_inum = 0;
+
+	ut_handle = (struct file_handle *)ut_buf;
+	ut_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	ut_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ut_fh = (struct nsfs_file_handle *)ut_handle->f_handle;
+	ut_fh->ns_id = ut_id;
+	ut_fh->ns_type = 0;
+	ut_fh->ns_inum = 0;
+
+	/* Open both non-user namespaces before process exits */
+	int n_fd = open_by_handle_at(FD_NSFS_ROOT, n_handle, O_RDONLY);
+	int ut_fd = open_by_handle_at(FD_NSFS_ROOT, ut_handle, O_RDONLY);
+
+	if (n_fd < 0 || ut_fd < 0) {
+		if (n_fd >= 0) close(n_fd);
+		if (ut_fd >= 0) close(ut_fd);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open namespaces");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/*
+	 * Both network and UTS namespaces are active.
+	 * User namespace should be active (gets 2 active refs).
+	 */
+	TH_LOG("Both net and uts active - user namespace should be active");
+	int u_fd = open_by_handle_at(FD_NSFS_ROOT, u_handle, O_RDONLY);
+	ASSERT_GE(u_fd, 0);
+	close(u_fd);
+
+	/* Close network namespace - user namespace should STILL be active */
+	TH_LOG("Closing network ns - user ns should still be active (uts still active)");
+	close(n_fd);
+	u_fd = open_by_handle_at(FD_NSFS_ROOT, u_handle, O_RDONLY);
+	ASSERT_GE(u_fd, 0);
+	close(u_fd);
+
+	/* Close UTS namespace - user namespace should become inactive */
+	TH_LOG("Closing uts ns - user ns should become inactive");
+	close(ut_fd);
+	u_fd = open_by_handle_at(FD_NSFS_ROOT, u_handle, O_RDONLY);
+	ASSERT_LT(u_fd, 0);
+}
+
+/*
+ * Test hierarchical propagation with deep namespace hierarchy.
+ * Create: init_user_ns -> user_A -> user_B -> net_ns
+ * When net_ns is active, both user_A and user_B should be active.
+ * This verifies the conditional recursion in __ns_ref_active_put() works.
+ */
+TEST(ns_deep_hierarchy_propagation)
+{
+	struct file_handle *ua_handle, *ub_handle, *net_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 ua_id, ub_id, net_id;
+	char ua_buf[sizeof(*ua_handle) + MAX_HANDLE_SZ];
+	char ub_buf[sizeof(*ub_handle) + MAX_HANDLE_SZ];
+	char net_buf[sizeof(*net_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		/* Create user_A -> user_B -> net hierarchy */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ua_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (ua_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ua_fd, NS_GET_ID, &ua_id) < 0) {
+			close(ua_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ua_fd);
+
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ub_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (ub_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ub_fd, NS_GET_ID, &ub_id) < 0) {
+			close(ub_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ub_fd);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int net_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (net_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(net_fd, NS_GET_ID, &net_id) < 0) {
+			close(net_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(net_fd);
+
+		/* Send all three namespace IDs */
+		write(pipefd[1], &ua_id, sizeof(ua_id));
+		write(pipefd[1], &ub_id, sizeof(ub_id));
+		write(pipefd[1], &net_id, sizeof(net_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &ua_id, sizeof(ua_id));
+	if (ret != sizeof(ua_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user_A namespace ID");
+	}
+
+	ret = read(pipefd[0], &ub_id, sizeof(ub_id));
+	if (ret != sizeof(ub_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user_B namespace ID");
+	}
+
+	ret = read(pipefd[0], &net_id, sizeof(net_id));
+	close(pipefd[0]);
+	if (ret != sizeof(net_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read network namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	ua_handle = (struct file_handle *)ua_buf;
+	ua_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	ua_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ua_fh = (struct nsfs_file_handle *)ua_handle->f_handle;
+	ua_fh->ns_id = ua_id;
+	ua_fh->ns_type = 0;
+	ua_fh->ns_inum = 0;
+
+	ub_handle = (struct file_handle *)ub_buf;
+	ub_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	ub_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ub_fh = (struct nsfs_file_handle *)ub_handle->f_handle;
+	ub_fh->ns_id = ub_id;
+	ub_fh->ns_type = 0;
+	ub_fh->ns_inum = 0;
+
+	net_handle = (struct file_handle *)net_buf;
+	net_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	net_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *net_fh = (struct nsfs_file_handle *)net_handle->f_handle;
+	net_fh->ns_id = net_id;
+	net_fh->ns_type = 0;
+	net_fh->ns_inum = 0;
+
+	/* Open net_ns before child exits to keep it active */
+	int net_fd = open_by_handle_at(FD_NSFS_ROOT, net_handle, O_RDONLY);
+	if (net_fd < 0) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open network namespace");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* With net_ns active, both user_A and user_B should be active */
+	TH_LOG("Testing user_B active (net_ns active causes propagation)");
+	int ub_fd = open_by_handle_at(FD_NSFS_ROOT, ub_handle, O_RDONLY);
+	ASSERT_GE(ub_fd, 0);
+
+	TH_LOG("Testing user_A active (propagated through user_B)");
+	int ua_fd = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_GE(ua_fd, 0);
+
+	/* Close net_ns - user_B should stay active (we hold direct ref) */
+	TH_LOG("Closing net_ns, user_B should remain active (direct ref held)");
+	close(net_fd);
+	int ub_fd2 = open_by_handle_at(FD_NSFS_ROOT, ub_handle, O_RDONLY);
+	ASSERT_GE(ub_fd2, 0);
+	close(ub_fd2);
+
+	/* Close user_B - user_A should stay active (we hold direct ref) */
+	TH_LOG("Closing user_B, user_A should remain active (direct ref held)");
+	close(ub_fd);
+	int ua_fd2 = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_GE(ua_fd2, 0);
+	close(ua_fd2);
+
+	/* Close user_A - everything should become inactive */
+	TH_LOG("Closing user_A, all should become inactive");
+	close(ua_fd);
+
+	/* All should now be inactive */
+	ua_fd = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_LT(ua_fd, 0);
+}
+
+/*
+ * Test that parent stays active as long as ANY child is active.
+ * Create parent user namespace with two child net namespaces.
+ * Parent should remain active until BOTH children are inactive.
+ */
+TEST(ns_parent_multiple_children_refcount)
+{
+	struct file_handle *parent_handle, *net1_handle, *net2_handle;
+	int ret, pipefd[2], syncpipe[2];
+	pid_t pid;
+	int status;
+	__u64 p_id, n1_id, n2_id;
+	char p_buf[sizeof(*parent_handle) + MAX_HANDLE_SZ];
+	char n1_buf[sizeof(*net1_handle) + MAX_HANDLE_SZ];
+	char n2_buf[sizeof(*net2_handle) + MAX_HANDLE_SZ];
+	char sync_byte;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	ASSERT_EQ(pipe(syncpipe), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+		close(syncpipe[1]);
+
+		/* Create parent user namespace */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int p_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (p_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(p_fd, NS_GET_ID, &p_id) < 0) {
+			close(p_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(p_fd);
+
+		/* Create first network namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		int n1_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (n1_fd < 0) {
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+		if (ioctl(n1_fd, NS_GET_ID, &n1_id) < 0) {
+			close(n1_fd);
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+		/* Keep n1_fd open so first namespace stays active */
+
+		/* Create second network namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(n1_fd);
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		int n2_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (n2_fd < 0) {
+			close(n1_fd);
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+		if (ioctl(n2_fd, NS_GET_ID, &n2_id) < 0) {
+			close(n1_fd);
+			close(n2_fd);
+			close(pipefd[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+		/* Keep both n1_fd and n2_fd open */
+
+		/* Send all namespace IDs */
+		write(pipefd[1], &p_id, sizeof(p_id));
+		write(pipefd[1], &n1_id, sizeof(n1_id));
+		write(pipefd[1], &n2_id, sizeof(n2_id));
+		close(pipefd[1]);
+
+		/* Wait for parent to signal before exiting */
+		read(syncpipe[0], &sync_byte, 1);
+		close(syncpipe[0]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+	close(syncpipe[0]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &p_id, sizeof(p_id));
+	if (ret != sizeof(p_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read parent namespace ID");
+	}
+
+	ret = read(pipefd[0], &n1_id, sizeof(n1_id));
+	if (ret != sizeof(n1_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read first network namespace ID");
+	}
+
+	ret = read(pipefd[0], &n2_id, sizeof(n2_id));
+	close(pipefd[0]);
+	if (ret != sizeof(n2_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read second network namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	parent_handle = (struct file_handle *)p_buf;
+	parent_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	parent_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *p_fh = (struct nsfs_file_handle *)parent_handle->f_handle;
+	p_fh->ns_id = p_id;
+	p_fh->ns_type = 0;
+	p_fh->ns_inum = 0;
+
+	net1_handle = (struct file_handle *)n1_buf;
+	net1_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	net1_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *n1_fh = (struct nsfs_file_handle *)net1_handle->f_handle;
+	n1_fh->ns_id = n1_id;
+	n1_fh->ns_type = 0;
+	n1_fh->ns_inum = 0;
+
+	net2_handle = (struct file_handle *)n2_buf;
+	net2_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	net2_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *n2_fh = (struct nsfs_file_handle *)net2_handle->f_handle;
+	n2_fh->ns_id = n2_id;
+	n2_fh->ns_type = 0;
+	n2_fh->ns_inum = 0;
+
+	/* Open both net namespaces while child is still alive */
+	int n1_fd = open_by_handle_at(FD_NSFS_ROOT, net1_handle, O_RDONLY);
+	int n2_fd = open_by_handle_at(FD_NSFS_ROOT, net2_handle, O_RDONLY);
+	if (n1_fd < 0 || n2_fd < 0) {
+		if (n1_fd >= 0) close(n1_fd);
+		if (n2_fd >= 0) close(n2_fd);
+		sync_byte = 'G';
+		write(syncpipe[1], &sync_byte, 1);
+		close(syncpipe[1]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open net namespaces");
+	}
+
+	/* Signal child that we have opened the namespaces */
+	sync_byte = 'G';
+	write(syncpipe[1], &sync_byte, 1);
+	close(syncpipe[1]);
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Parent should be active (has 2 active children) */
+	TH_LOG("Both net namespaces active - parent should be active");
+	int p_fd = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_GE(p_fd, 0);
+	close(p_fd);
+
+	/* Close first net namespace - parent should STILL be active */
+	TH_LOG("Closing first net ns - parent should still be active");
+	close(n1_fd);
+	p_fd = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_GE(p_fd, 0);
+	close(p_fd);
+
+	/* Close second net namespace - parent should become inactive */
+	TH_LOG("Closing second net ns - parent should become inactive");
+	close(n2_fd);
+	p_fd = open_by_handle_at(FD_NSFS_ROOT, parent_handle, O_RDONLY);
+	ASSERT_LT(p_fd, 0);
+}
+
+/*
+ * Test that user namespace as a child also propagates correctly.
+ * Create user_A -> user_B, verify when user_B is active that user_A
+ * is also active. This is different from non-user namespace children.
+ */
+TEST(ns_userns_child_propagation)
+{
+	struct file_handle *ua_handle, *ub_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 ua_id, ub_id;
+	char ua_buf[sizeof(*ua_handle) + MAX_HANDLE_SZ];
+	char ub_buf[sizeof(*ub_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		/* Create user_A */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ua_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (ua_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ua_fd, NS_GET_ID, &ua_id) < 0) {
+			close(ua_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ua_fd);
+
+		/* Create user_B (child of user_A) */
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ub_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (ub_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ub_fd, NS_GET_ID, &ub_id) < 0) {
+			close(ub_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ub_fd);
+
+		/* Send both namespace IDs */
+		write(pipefd[1], &ua_id, sizeof(ua_id));
+		write(pipefd[1], &ub_id, sizeof(ub_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read both namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &ua_id, sizeof(ua_id));
+	if (ret != sizeof(ua_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user_A namespace ID");
+	}
+
+	ret = read(pipefd[0], &ub_id, sizeof(ub_id));
+	close(pipefd[0]);
+	if (ret != sizeof(ub_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user_B namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	ua_handle = (struct file_handle *)ua_buf;
+	ua_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	ua_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ua_fh = (struct nsfs_file_handle *)ua_handle->f_handle;
+	ua_fh->ns_id = ua_id;
+	ua_fh->ns_type = 0;
+	ua_fh->ns_inum = 0;
+
+	ub_handle = (struct file_handle *)ub_buf;
+	ub_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	ub_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ub_fh = (struct nsfs_file_handle *)ub_handle->f_handle;
+	ub_fh->ns_id = ub_id;
+	ub_fh->ns_type = 0;
+	ub_fh->ns_inum = 0;
+
+	/* Open user_B before child exits */
+	int ub_fd = open_by_handle_at(FD_NSFS_ROOT, ub_handle, O_RDONLY);
+	if (ub_fd < 0) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open user_B");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* With user_B active, user_A should also be active */
+	TH_LOG("Testing user_A active when child user_B is active");
+	int ua_fd = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_GE(ua_fd, 0);
+
+	/* Close user_B */
+	TH_LOG("Closing user_B");
+	close(ub_fd);
+
+	/* user_A should remain active (we hold direct ref) */
+	int ua_fd2 = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_GE(ua_fd2, 0);
+	close(ua_fd2);
+
+	/* Close user_A - should become inactive */
+	TH_LOG("Closing user_A - should become inactive");
+	close(ua_fd);
+
+	ua_fd = open_by_handle_at(FD_NSFS_ROOT, ua_handle, O_RDONLY);
+	ASSERT_LT(ua_fd, 0);
+}
+
+/*
+ * Test different namespace types (net, uts, ipc) all contributing
+ * active references to the same owning user namespace.
+ */
+TEST(ns_mixed_types_same_owner)
+{
+	struct file_handle *user_handle, *net_handle, *uts_handle;
+	int ret, pipefd[2];
+	pid_t pid;
+	int status;
+	__u64 u_id, n_id, ut_id;
+	char u_buf[sizeof(*user_handle) + MAX_HANDLE_SZ];
+	char n_buf[sizeof(*net_handle) + MAX_HANDLE_SZ];
+	char ut_buf[sizeof(*uts_handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(pipefd[0]);
+
+		if (setup_userns() < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int u_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (u_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(u_fd, NS_GET_ID, &u_id) < 0) {
+			close(u_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(u_fd);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int n_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (n_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(n_fd, NS_GET_ID, &n_id) < 0) {
+			close(n_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(n_fd);
+
+		if (unshare(CLONE_NEWUTS) < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+
+		int ut_fd = open("/proc/self/ns/uts", O_RDONLY);
+		if (ut_fd < 0) {
+			close(pipefd[1]);
+			exit(1);
+		}
+		if (ioctl(ut_fd, NS_GET_ID, &ut_id) < 0) {
+			close(ut_fd);
+			close(pipefd[1]);
+			exit(1);
+		}
+		close(ut_fd);
+
+		/* Send all namespace IDs */
+		write(pipefd[1], &u_id, sizeof(u_id));
+		write(pipefd[1], &n_id, sizeof(n_id));
+		write(pipefd[1], &ut_id, sizeof(ut_id));
+		close(pipefd[1]);
+		exit(0);
+	}
+
+	close(pipefd[1]);
+
+	/* Read all three namespace IDs - fixed size, no parsing needed */
+	ret = read(pipefd[0], &u_id, sizeof(u_id));
+	if (ret != sizeof(u_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user namespace ID");
+	}
+
+	ret = read(pipefd[0], &n_id, sizeof(n_id));
+	if (ret != sizeof(n_id)) {
+		close(pipefd[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read network namespace ID");
+	}
+
+	ret = read(pipefd[0], &ut_id, sizeof(ut_id));
+	close(pipefd[0]);
+	if (ret != sizeof(ut_id)) {
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read UTS namespace ID");
+	}
+
+	/* Construct file handles from namespace IDs */
+	user_handle = (struct file_handle *)u_buf;
+	user_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	user_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *u_fh = (struct nsfs_file_handle *)user_handle->f_handle;
+	u_fh->ns_id = u_id;
+	u_fh->ns_type = 0;
+	u_fh->ns_inum = 0;
+
+	net_handle = (struct file_handle *)n_buf;
+	net_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	net_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *n_fh = (struct nsfs_file_handle *)net_handle->f_handle;
+	n_fh->ns_id = n_id;
+	n_fh->ns_type = 0;
+	n_fh->ns_inum = 0;
+
+	uts_handle = (struct file_handle *)ut_buf;
+	uts_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	uts_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *ut_fh = (struct nsfs_file_handle *)uts_handle->f_handle;
+	ut_fh->ns_id = ut_id;
+	ut_fh->ns_type = 0;
+	ut_fh->ns_inum = 0;
+
+	/* Open both non-user namespaces */
+	int n_fd = open_by_handle_at(FD_NSFS_ROOT, net_handle, O_RDONLY);
+	int ut_fd = open_by_handle_at(FD_NSFS_ROOT, uts_handle, O_RDONLY);
+	if (n_fd < 0 || ut_fd < 0) {
+		if (n_fd >= 0) close(n_fd);
+		if (ut_fd >= 0) close(ut_fd);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to open namespaces");
+	}
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* User namespace should be active (2 active children) */
+	TH_LOG("Both net and uts active - user ns should be active");
+	int u_fd = open_by_handle_at(FD_NSFS_ROOT, user_handle, O_RDONLY);
+	ASSERT_GE(u_fd, 0);
+	close(u_fd);
+
+	/* Close net - user ns should STILL be active (uts still active) */
+	TH_LOG("Closing net - user ns should still be active");
+	close(n_fd);
+	u_fd = open_by_handle_at(FD_NSFS_ROOT, user_handle, O_RDONLY);
+	ASSERT_GE(u_fd, 0);
+	close(u_fd);
+
+	/* Close uts - user ns should become inactive */
+	TH_LOG("Closing uts - user ns should become inactive");
+	close(ut_fd);
+	u_fd = open_by_handle_at(FD_NSFS_ROOT, user_handle, O_RDONLY);
+	ASSERT_LT(u_fd, 0);
+}
+
+/* Thread test helpers and structures */
+struct thread_ns_info {
+	__u64 ns_id;
+	int pipefd;
+	int syncfd_read;
+	int syncfd_write;
+	int exit_code;
+};
+
+static void *thread_create_namespace(void *arg)
+{
+	struct thread_ns_info *info = (struct thread_ns_info *)arg;
+	int ret;
+
+	/* Create new network namespace */
+	ret = unshare(CLONE_NEWNET);
+	if (ret < 0) {
+		info->exit_code = 1;
+		return NULL;
+	}
+
+	/* Get namespace ID */
+	int fd = open("/proc/thread-self/ns/net", O_RDONLY);
+	if (fd < 0) {
+		info->exit_code = 2;
+		return NULL;
+	}
+
+	ret = ioctl(fd, NS_GET_ID, &info->ns_id);
+	close(fd);
+	if (ret < 0) {
+		info->exit_code = 3;
+		return NULL;
+	}
+
+	/* Send namespace ID to main thread */
+	if (write(info->pipefd, &info->ns_id, sizeof(info->ns_id)) != sizeof(info->ns_id)) {
+		info->exit_code = 4;
+		return NULL;
+	}
+
+	/* Wait for signal to exit */
+	char sync_byte;
+	if (read(info->syncfd_read, &sync_byte, 1) != 1) {
+		info->exit_code = 5;
+		return NULL;
+	}
+
+	info->exit_code = 0;
+	return NULL;
+}
+
+/*
+ * Test that namespace becomes inactive after thread exits.
+ * This verifies active reference counting works with threads, not just processes.
+ */
+TEST(thread_ns_inactive_after_exit)
+{
+	pthread_t thread;
+	struct thread_ns_info info;
+	struct file_handle *handle;
+	int pipefd[2];
+	int syncpipe[2];
+	int ret;
+	char sync_byte;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	ASSERT_EQ(pipe(syncpipe), 0);
+
+	info.pipefd = pipefd[1];
+	info.syncfd_read = syncpipe[0];
+	info.syncfd_write = -1;
+	info.exit_code = -1;
+
+	/* Create thread that will create a namespace */
+	ret = pthread_create(&thread, NULL, thread_create_namespace, &info);
+	ASSERT_EQ(ret, 0);
+
+	/* Read namespace ID from thread */
+	__u64 ns_id;
+	ret = read(pipefd[0], &ns_id, sizeof(ns_id));
+	if (ret != sizeof(ns_id)) {
+		sync_byte = 'X';
+		write(syncpipe[1], &sync_byte, 1);
+		pthread_join(thread, NULL);
+		close(pipefd[0]);
+		close(pipefd[1]);
+		close(syncpipe[0]);
+		close(syncpipe[1]);
+		SKIP(return, "Failed to read namespace ID from thread");
+	}
+
+	TH_LOG("Thread created namespace with ID %llu", (unsigned long long)ns_id);
+
+	/* Construct file handle */
+	handle = (struct file_handle *)buf;
+	handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *fh = (struct nsfs_file_handle *)handle->f_handle;
+	fh->ns_id = ns_id;
+	fh->ns_type = 0;
+	fh->ns_inum = 0;
+
+	/* Namespace should be active while thread is alive */
+	TH_LOG("Attempting to open namespace while thread is alive (should succeed)");
+	int nsfd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_GE(nsfd, 0);
+	close(nsfd);
+
+	/* Signal thread to exit */
+	TH_LOG("Signaling thread to exit");
+	sync_byte = 'X';
+	ASSERT_EQ(write(syncpipe[1], &sync_byte, 1), 1);
+	close(syncpipe[1]);
+
+	/* Wait for thread to exit */
+	ASSERT_EQ(pthread_join(thread, NULL), 0);
+	close(pipefd[0]);
+	close(pipefd[1]);
+	close(syncpipe[0]);
+
+	if (info.exit_code != 0)
+		SKIP(return, "Thread failed to create namespace");
+
+	TH_LOG("Thread exited, namespace should be inactive");
+
+	/* Namespace should now be inactive */
+	nsfd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(nsfd, 0);
+	/* Should fail with ENOENT (inactive) or ESTALE (gone) */
+	TH_LOG("Namespace inactive as expected: %s (errno=%d)", strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/*
+ * Test that a namespace remains active while a thread holds an fd to it.
+ * Even after the thread exits, the namespace should remain active as long as
+ * another thread holds a file descriptor to it.
+ */
+TEST(thread_ns_fd_keeps_active)
+{
+	pthread_t thread;
+	struct thread_ns_info info;
+	struct file_handle *handle;
+	int pipefd[2];
+	int syncpipe[2];
+	int ret;
+	char sync_byte;
+	char buf[sizeof(*handle) + MAX_HANDLE_SZ];
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	ASSERT_EQ(pipe(syncpipe), 0);
+
+	info.pipefd = pipefd[1];
+	info.syncfd_read = syncpipe[0];
+	info.syncfd_write = -1;
+	info.exit_code = -1;
+
+	/* Create thread that will create a namespace */
+	ret = pthread_create(&thread, NULL, thread_create_namespace, &info);
+	ASSERT_EQ(ret, 0);
+
+	/* Read namespace ID from thread */
+	__u64 ns_id;
+	ret = read(pipefd[0], &ns_id, sizeof(ns_id));
+	if (ret != sizeof(ns_id)) {
+		sync_byte = 'X';
+		write(syncpipe[1], &sync_byte, 1);
+		pthread_join(thread, NULL);
+		close(pipefd[0]);
+		close(pipefd[1]);
+		close(syncpipe[0]);
+		close(syncpipe[1]);
+		SKIP(return, "Failed to read namespace ID from thread");
+	}
+
+	TH_LOG("Thread created namespace with ID %llu", (unsigned long long)ns_id);
+
+	/* Construct file handle */
+	handle = (struct file_handle *)buf;
+	handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *fh = (struct nsfs_file_handle *)handle->f_handle;
+	fh->ns_id = ns_id;
+	fh->ns_type = 0;
+	fh->ns_inum = 0;
+
+	/* Open namespace while thread is alive */
+	TH_LOG("Opening namespace while thread is alive");
+	int nsfd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_GE(nsfd, 0);
+
+	/* Signal thread to exit */
+	TH_LOG("Signaling thread to exit");
+	sync_byte = 'X';
+	write(syncpipe[1], &sync_byte, 1);
+	close(syncpipe[1]);
+
+	/* Wait for thread to exit */
+	pthread_join(thread, NULL);
+	close(pipefd[0]);
+	close(pipefd[1]);
+	close(syncpipe[0]);
+
+	if (info.exit_code != 0) {
+		close(nsfd);
+		SKIP(return, "Thread failed to create namespace");
+	}
+
+	TH_LOG("Thread exited, but main thread holds fd - namespace should remain active");
+
+	/* Namespace should still be active because we hold an fd */
+	int nsfd2 = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_GE(nsfd2, 0);
+
+	/* Verify it's the same namespace */
+	struct stat st1, st2;
+	ASSERT_EQ(fstat(nsfd, &st1), 0);
+	ASSERT_EQ(fstat(nsfd2, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	close(nsfd2);
+
+	TH_LOG("Closing fd - namespace should become inactive");
+	close(nsfd);
+
+	/* Now namespace should be inactive */
+	nsfd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(nsfd, 0);
+	/* Should fail with ENOENT (inactive) or ESTALE (gone) */
+	TH_LOG("Namespace inactive as expected: %s (errno=%d)", strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+}
+
+/* Structure for thread data in subprocess */
+struct thread_sleep_data {
+	int syncfd_read;
+};
+
+static void *thread_sleep_and_wait(void *arg)
+{
+	struct thread_sleep_data *data = (struct thread_sleep_data *)arg;
+	char sync_byte;
+
+	/* Wait for signal to exit - read will unblock when pipe is closed */
+	(void)read(data->syncfd_read, &sync_byte, 1);
+	return NULL;
+}
+
+/*
+ * Test that namespaces become inactive after subprocess with multiple threads exits.
+ * Create a subprocess that unshares user and network namespaces, then creates two
+ * threads that share those namespaces. Verify that after all threads and subprocess
+ * exit, the namespaces are no longer listed by listns() and cannot be opened by
+ * open_by_handle_at().
+ */
+TEST(thread_subprocess_ns_inactive_after_all_exit)
+{
+	int pipefd[2];
+	int sv[2];
+	pid_t pid;
+	int status;
+	__u64 user_id, net_id;
+	struct file_handle *user_handle, *net_handle;
+	char user_buf[sizeof(*user_handle) + MAX_HANDLE_SZ];
+	char net_buf[sizeof(*net_handle) + MAX_HANDLE_SZ];
+	char sync_byte;
+	int ret;
+
+	ASSERT_EQ(pipe(pipefd), 0);
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+		close(sv[0]);
+
+		/* Create user namespace with mappings */
+		if (setup_userns() < 0) {
+			fprintf(stderr, "Child: setup_userns() failed: %s\n", strerror(errno));
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+		fprintf(stderr, "Child: setup_userns() succeeded\n");
+
+		/* Get user namespace ID */
+		int user_fd = open("/proc/self/ns/user", O_RDONLY);
+		if (user_fd < 0) {
+			fprintf(stderr, "Child: open(/proc/self/ns/user) failed: %s\n", strerror(errno));
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+
+		if (ioctl(user_fd, NS_GET_ID, &user_id) < 0) {
+			fprintf(stderr, "Child: ioctl(NS_GET_ID) for user ns failed: %s\n", strerror(errno));
+			close(user_fd);
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+		close(user_fd);
+		fprintf(stderr, "Child: user ns ID = %llu\n", (unsigned long long)user_id);
+
+		/* Unshare network namespace */
+		if (unshare(CLONE_NEWNET) < 0) {
+			fprintf(stderr, "Child: unshare(CLONE_NEWNET) failed: %s\n", strerror(errno));
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+		fprintf(stderr, "Child: unshare(CLONE_NEWNET) succeeded\n");
+
+		/* Get network namespace ID */
+		int net_fd = open("/proc/self/ns/net", O_RDONLY);
+		if (net_fd < 0) {
+			fprintf(stderr, "Child: open(/proc/self/ns/net) failed: %s\n", strerror(errno));
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+
+		if (ioctl(net_fd, NS_GET_ID, &net_id) < 0) {
+			fprintf(stderr, "Child: ioctl(NS_GET_ID) for net ns failed: %s\n", strerror(errno));
+			close(net_fd);
+			close(pipefd[1]);
+			close(sv[1]);
+			exit(1);
+		}
+		close(net_fd);
+		fprintf(stderr, "Child: net ns ID = %llu\n", (unsigned long long)net_id);
+
+		/* Send namespace IDs to parent */
+		if (write(pipefd[1], &user_id, sizeof(user_id)) != sizeof(user_id)) {
+			fprintf(stderr, "Child: write(user_id) failed: %s\n", strerror(errno));
+			exit(1);
+		}
+		if (write(pipefd[1], &net_id, sizeof(net_id)) != sizeof(net_id)) {
+			fprintf(stderr, "Child: write(net_id) failed: %s\n", strerror(errno));
+			exit(1);
+		}
+		close(pipefd[1]);
+		fprintf(stderr, "Child: sent namespace IDs to parent\n");
+
+		/* Create two threads that share the namespaces */
+		pthread_t thread1, thread2;
+		struct thread_sleep_data data;
+		data.syncfd_read = sv[1];
+
+		int ret_thread = pthread_create(&thread1, NULL, thread_sleep_and_wait, &data);
+		if (ret_thread != 0) {
+			fprintf(stderr, "Child: pthread_create(thread1) failed: %s\n", strerror(ret_thread));
+			close(sv[1]);
+			exit(1);
+		}
+		fprintf(stderr, "Child: created thread1\n");
+
+		ret_thread = pthread_create(&thread2, NULL, thread_sleep_and_wait, &data);
+		if (ret_thread != 0) {
+			fprintf(stderr, "Child: pthread_create(thread2) failed: %s\n", strerror(ret_thread));
+			close(sv[1]);
+			pthread_cancel(thread1);
+			exit(1);
+		}
+		fprintf(stderr, "Child: created thread2\n");
+
+		/* Wait for threads to complete - they will unblock when parent writes */
+		fprintf(stderr, "Child: waiting for threads to exit\n");
+		pthread_join(thread1, NULL);
+		fprintf(stderr, "Child: thread1 exited\n");
+		pthread_join(thread2, NULL);
+		fprintf(stderr, "Child: thread2 exited\n");
+
+		close(sv[1]);
+
+		/* Exit - namespaces should become inactive */
+		fprintf(stderr, "Child: all threads joined, exiting with success\n");
+		exit(0);
+	}
+
+	/* Parent process */
+	close(pipefd[1]);
+	close(sv[1]);
+
+	TH_LOG("Parent: waiting to read namespace IDs from child");
+
+	/* Read namespace IDs from child */
+	ret = read(pipefd[0], &user_id, sizeof(user_id));
+	if (ret != sizeof(user_id)) {
+		TH_LOG("Parent: failed to read user_id, ret=%d, errno=%s", ret, strerror(errno));
+		close(pipefd[0]);
+		sync_byte = 'X';
+		(void)write(sv[0], &sync_byte, 1);
+		close(sv[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read user namespace ID from child");
+	}
+
+	ret = read(pipefd[0], &net_id, sizeof(net_id));
+	close(pipefd[0]);
+	if (ret != sizeof(net_id)) {
+		TH_LOG("Parent: failed to read net_id, ret=%d, errno=%s", ret, strerror(errno));
+		sync_byte = 'X';
+		(void)write(sv[0], &sync_byte, 1);
+		close(sv[0]);
+		waitpid(pid, NULL, 0);
+		SKIP(return, "Failed to read network namespace ID from child");
+	}
+
+	TH_LOG("Child created user ns %llu and net ns %llu with 2 threads",
+	       (unsigned long long)user_id, (unsigned long long)net_id);
+
+	/* Construct file handles */
+	user_handle = (struct file_handle *)user_buf;
+	user_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	user_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *user_fh = (struct nsfs_file_handle *)user_handle->f_handle;
+	user_fh->ns_id = user_id;
+	user_fh->ns_type = 0;
+	user_fh->ns_inum = 0;
+
+	net_handle = (struct file_handle *)net_buf;
+	net_handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	net_handle->handle_type = FILEID_NSFS;
+	struct nsfs_file_handle *net_fh = (struct nsfs_file_handle *)net_handle->f_handle;
+	net_fh->ns_id = net_id;
+	net_fh->ns_type = 0;
+	net_fh->ns_inum = 0;
+
+	/* Verify namespaces are active while subprocess and threads are alive */
+	TH_LOG("Verifying namespaces are active while subprocess with threads is running");
+	int user_fd = open_by_handle_at(FD_NSFS_ROOT, user_handle, O_RDONLY);
+	ASSERT_GE(user_fd, 0);
+
+	int net_fd = open_by_handle_at(FD_NSFS_ROOT, net_handle, O_RDONLY);
+	ASSERT_GE(net_fd, 0);
+
+	close(user_fd);
+	close(net_fd);
+
+	/* Also verify they appear in listns() */
+	TH_LOG("Verifying namespaces appear in listns() while active");
+	struct ns_id_req req = {
+		.size = sizeof(struct ns_id_req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	int nr_ids = sys_listns(&req, ns_ids, 256, 0);
+	if (nr_ids < 0) {
+		TH_LOG("listns() not available, skipping listns verification");
+	} else {
+		/* Check if user_id is in the list */
+		int found_user = 0;
+		for (int i = 0; i < nr_ids; i++) {
+			if (ns_ids[i] == user_id) {
+				found_user = 1;
+				break;
+			}
+		}
+		ASSERT_TRUE(found_user);
+		TH_LOG("User namespace found in listns() as expected");
+
+		/* Check network namespace */
+		req.ns_type = CLONE_NEWNET;
+		nr_ids = sys_listns(&req, ns_ids, 256, 0);
+		if (nr_ids >= 0) {
+			int found_net = 0;
+			for (int i = 0; i < nr_ids; i++) {
+				if (ns_ids[i] == net_id) {
+					found_net = 1;
+					break;
+				}
+			}
+			ASSERT_TRUE(found_net);
+			TH_LOG("Network namespace found in listns() as expected");
+		}
+	}
+
+	/* Signal threads to exit */
+	TH_LOG("Signaling threads to exit");
+	sync_byte = 'X';
+	/* Write two bytes - one for each thread */
+	ASSERT_EQ(write(sv[0], &sync_byte, 1), 1);
+	ASSERT_EQ(write(sv[0], &sync_byte, 1), 1);
+	close(sv[0]);
+
+	/* Wait for child process to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	if (WEXITSTATUS(status) != 0) {
+		TH_LOG("Child process failed with exit code %d", WEXITSTATUS(status));
+		SKIP(return, "Child process failed");
+	}
+
+	TH_LOG("Subprocess and all threads have exited successfully");
+
+	/* Verify namespaces are now inactive - open_by_handle_at should fail */
+	TH_LOG("Verifying namespaces are inactive after subprocess and threads exit");
+	user_fd = open_by_handle_at(FD_NSFS_ROOT, user_handle, O_RDONLY);
+	ASSERT_LT(user_fd, 0);
+	TH_LOG("User namespace inactive as expected: %s (errno=%d)",
+	       strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+
+	net_fd = open_by_handle_at(FD_NSFS_ROOT, net_handle, O_RDONLY);
+	ASSERT_LT(net_fd, 0);
+	TH_LOG("Network namespace inactive as expected: %s (errno=%d)",
+	       strerror(errno), errno);
+	ASSERT_TRUE(errno == ENOENT || errno == ESTALE);
+
+	/* Verify namespaces do NOT appear in listns() */
+	TH_LOG("Verifying namespaces do NOT appear in listns() when inactive");
+	memset(&req, 0, sizeof(req));
+	req.size = sizeof(struct ns_id_req);
+	req.ns_type = CLONE_NEWUSER;
+	nr_ids = sys_listns(&req, ns_ids, 256, 0);
+	if (nr_ids >= 0) {
+		int found_user = 0;
+		for (int i = 0; i < nr_ids; i++) {
+			if (ns_ids[i] == user_id) {
+				found_user = 1;
+				break;
+			}
+		}
+		ASSERT_FALSE(found_user);
+		TH_LOG("User namespace correctly not listed in listns()");
+
+		/* Check network namespace */
+		req.ns_type = CLONE_NEWNET;
+		nr_ids = sys_listns(&req, ns_ids, 256, 0);
+		if (nr_ids >= 0) {
+			int found_net = 0;
+			for (int i = 0; i < nr_ids; i++) {
+				if (ns_ids[i] == net_id) {
+					found_net = 1;
+					break;
+				}
+			}
+			ASSERT_FALSE(found_net);
+			TH_LOG("Network namespace correctly not listed in listns()");
+		}
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/nsid_test.c b/tools/testing/selftests/namespaces/nsid_test.c
new file mode 100644
index 000000000000..b4a14c6693a5
--- /dev/null
+++ b/tools/testing/selftests/namespaces/nsid_test.c
@@ -0,0 +1,981 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <limits.h>
+#include <pthread.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <poll.h>
+#include <sys/epoll.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/fs.h>
+#include <linux/limits.h>
+#include <linux/nsfs.h>
+#include "kselftest_harness.h"
+
+/* Fixture for tests that create child processes */
+FIXTURE(nsid) {
+	pid_t child_pid;
+};
+
+FIXTURE_SETUP(nsid) {
+	self->child_pid = 0;
+}
+
+FIXTURE_TEARDOWN(nsid) {
+	/* Clean up any child process that may still be running */
+	if (self->child_pid > 0) {
+		kill(self->child_pid, SIGKILL);
+		waitpid(self->child_pid, NULL, 0);
+	}
+}
+
+TEST(nsid_mntns_basic)
+{
+	__u64 mnt_ns_id = 0;
+	int fd_mntns;
+	int ret;
+
+	/* Open the current mount namespace */
+	fd_mntns = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(fd_mntns, 0);
+
+	/* Get the mount namespace ID */
+	ret = ioctl(fd_mntns, NS_GET_MNTNS_ID, &mnt_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(mnt_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 mnt_ns_id2 = 0;
+	ret = ioctl(fd_mntns, NS_GET_ID, &mnt_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(mnt_ns_id, mnt_ns_id2);
+
+	close(fd_mntns);
+}
+
+TEST_F(nsid, mntns_separate)
+{
+	__u64 parent_mnt_ns_id = 0;
+	__u64 child_mnt_ns_id = 0;
+	int fd_parent_mntns, fd_child_mntns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's mount namespace ID */
+	fd_parent_mntns = open("/proc/self/ns/mnt", O_RDONLY);
+	ASSERT_GE(fd_parent_mntns, 0);
+	ret = ioctl(fd_parent_mntns, NS_GET_ID, &parent_mnt_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_mnt_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new mount namespace */
+		ret = unshare(CLONE_NEWNS);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_mntns);
+		SKIP(return, "No permission to create mount namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's mount namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/mnt", pid);
+	fd_child_mntns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_mntns, 0);
+
+	/* Get child's mount namespace ID */
+	ret = ioctl(fd_child_mntns, NS_GET_ID, &child_mnt_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_mnt_ns_id, 0);
+
+	/* Parent and child should have different mount namespace IDs */
+	ASSERT_NE(parent_mnt_ns_id, child_mnt_ns_id);
+
+	close(fd_parent_mntns);
+	close(fd_child_mntns);
+}
+
+TEST(nsid_cgroupns_basic)
+{
+	__u64 cgroup_ns_id = 0;
+	int fd_cgroupns;
+	int ret;
+
+	/* Open the current cgroup namespace */
+	fd_cgroupns = open("/proc/self/ns/cgroup", O_RDONLY);
+	ASSERT_GE(fd_cgroupns, 0);
+
+	/* Get the cgroup namespace ID */
+	ret = ioctl(fd_cgroupns, NS_GET_ID, &cgroup_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(cgroup_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 cgroup_ns_id2 = 0;
+	ret = ioctl(fd_cgroupns, NS_GET_ID, &cgroup_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(cgroup_ns_id, cgroup_ns_id2);
+
+	close(fd_cgroupns);
+}
+
+TEST_F(nsid, cgroupns_separate)
+{
+	__u64 parent_cgroup_ns_id = 0;
+	__u64 child_cgroup_ns_id = 0;
+	int fd_parent_cgroupns, fd_child_cgroupns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's cgroup namespace ID */
+	fd_parent_cgroupns = open("/proc/self/ns/cgroup", O_RDONLY);
+	ASSERT_GE(fd_parent_cgroupns, 0);
+	ret = ioctl(fd_parent_cgroupns, NS_GET_ID, &parent_cgroup_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_cgroup_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new cgroup namespace */
+		ret = unshare(CLONE_NEWCGROUP);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_cgroupns);
+		SKIP(return, "No permission to create cgroup namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's cgroup namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/cgroup", pid);
+	fd_child_cgroupns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_cgroupns, 0);
+
+	/* Get child's cgroup namespace ID */
+	ret = ioctl(fd_child_cgroupns, NS_GET_ID, &child_cgroup_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_cgroup_ns_id, 0);
+
+	/* Parent and child should have different cgroup namespace IDs */
+	ASSERT_NE(parent_cgroup_ns_id, child_cgroup_ns_id);
+
+	close(fd_parent_cgroupns);
+	close(fd_child_cgroupns);
+}
+
+TEST(nsid_ipcns_basic)
+{
+	__u64 ipc_ns_id = 0;
+	int fd_ipcns;
+	int ret;
+
+	/* Open the current IPC namespace */
+	fd_ipcns = open("/proc/self/ns/ipc", O_RDONLY);
+	ASSERT_GE(fd_ipcns, 0);
+
+	/* Get the IPC namespace ID */
+	ret = ioctl(fd_ipcns, NS_GET_ID, &ipc_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(ipc_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 ipc_ns_id2 = 0;
+	ret = ioctl(fd_ipcns, NS_GET_ID, &ipc_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(ipc_ns_id, ipc_ns_id2);
+
+	close(fd_ipcns);
+}
+
+TEST_F(nsid, ipcns_separate)
+{
+	__u64 parent_ipc_ns_id = 0;
+	__u64 child_ipc_ns_id = 0;
+	int fd_parent_ipcns, fd_child_ipcns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's IPC namespace ID */
+	fd_parent_ipcns = open("/proc/self/ns/ipc", O_RDONLY);
+	ASSERT_GE(fd_parent_ipcns, 0);
+	ret = ioctl(fd_parent_ipcns, NS_GET_ID, &parent_ipc_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_ipc_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new IPC namespace */
+		ret = unshare(CLONE_NEWIPC);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_ipcns);
+		SKIP(return, "No permission to create IPC namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's IPC namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/ipc", pid);
+	fd_child_ipcns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_ipcns, 0);
+
+	/* Get child's IPC namespace ID */
+	ret = ioctl(fd_child_ipcns, NS_GET_ID, &child_ipc_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_ipc_ns_id, 0);
+
+	/* Parent and child should have different IPC namespace IDs */
+	ASSERT_NE(parent_ipc_ns_id, child_ipc_ns_id);
+
+	close(fd_parent_ipcns);
+	close(fd_child_ipcns);
+}
+
+TEST(nsid_utsns_basic)
+{
+	__u64 uts_ns_id = 0;
+	int fd_utsns;
+	int ret;
+
+	/* Open the current UTS namespace */
+	fd_utsns = open("/proc/self/ns/uts", O_RDONLY);
+	ASSERT_GE(fd_utsns, 0);
+
+	/* Get the UTS namespace ID */
+	ret = ioctl(fd_utsns, NS_GET_ID, &uts_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(uts_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 uts_ns_id2 = 0;
+	ret = ioctl(fd_utsns, NS_GET_ID, &uts_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(uts_ns_id, uts_ns_id2);
+
+	close(fd_utsns);
+}
+
+TEST_F(nsid, utsns_separate)
+{
+	__u64 parent_uts_ns_id = 0;
+	__u64 child_uts_ns_id = 0;
+	int fd_parent_utsns, fd_child_utsns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's UTS namespace ID */
+	fd_parent_utsns = open("/proc/self/ns/uts", O_RDONLY);
+	ASSERT_GE(fd_parent_utsns, 0);
+	ret = ioctl(fd_parent_utsns, NS_GET_ID, &parent_uts_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_uts_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new UTS namespace */
+		ret = unshare(CLONE_NEWUTS);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_utsns);
+		SKIP(return, "No permission to create UTS namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's UTS namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/uts", pid);
+	fd_child_utsns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_utsns, 0);
+
+	/* Get child's UTS namespace ID */
+	ret = ioctl(fd_child_utsns, NS_GET_ID, &child_uts_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_uts_ns_id, 0);
+
+	/* Parent and child should have different UTS namespace IDs */
+	ASSERT_NE(parent_uts_ns_id, child_uts_ns_id);
+
+	close(fd_parent_utsns);
+	close(fd_child_utsns);
+}
+
+TEST(nsid_userns_basic)
+{
+	__u64 user_ns_id = 0;
+	int fd_userns;
+	int ret;
+
+	/* Open the current user namespace */
+	fd_userns = open("/proc/self/ns/user", O_RDONLY);
+	ASSERT_GE(fd_userns, 0);
+
+	/* Get the user namespace ID */
+	ret = ioctl(fd_userns, NS_GET_ID, &user_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(user_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 user_ns_id2 = 0;
+	ret = ioctl(fd_userns, NS_GET_ID, &user_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(user_ns_id, user_ns_id2);
+
+	close(fd_userns);
+}
+
+TEST_F(nsid, userns_separate)
+{
+	__u64 parent_user_ns_id = 0;
+	__u64 child_user_ns_id = 0;
+	int fd_parent_userns, fd_child_userns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's user namespace ID */
+	fd_parent_userns = open("/proc/self/ns/user", O_RDONLY);
+	ASSERT_GE(fd_parent_userns, 0);
+	ret = ioctl(fd_parent_userns, NS_GET_ID, &parent_user_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_user_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new user namespace */
+		ret = unshare(CLONE_NEWUSER);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_userns);
+		SKIP(return, "No permission to create user namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's user namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/user", pid);
+	fd_child_userns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_userns, 0);
+
+	/* Get child's user namespace ID */
+	ret = ioctl(fd_child_userns, NS_GET_ID, &child_user_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_user_ns_id, 0);
+
+	/* Parent and child should have different user namespace IDs */
+	ASSERT_NE(parent_user_ns_id, child_user_ns_id);
+
+	close(fd_parent_userns);
+	close(fd_child_userns);
+}
+
+TEST(nsid_timens_basic)
+{
+	__u64 time_ns_id = 0;
+	int fd_timens;
+	int ret;
+
+	/* Open the current time namespace */
+	fd_timens = open("/proc/self/ns/time", O_RDONLY);
+	if (fd_timens < 0) {
+		SKIP(return, "Time namespaces not supported");
+	}
+
+	/* Get the time namespace ID */
+	ret = ioctl(fd_timens, NS_GET_ID, &time_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(time_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 time_ns_id2 = 0;
+	ret = ioctl(fd_timens, NS_GET_ID, &time_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(time_ns_id, time_ns_id2);
+
+	close(fd_timens);
+}
+
+TEST_F(nsid, timens_separate)
+{
+	__u64 parent_time_ns_id = 0;
+	__u64 child_time_ns_id = 0;
+	int fd_parent_timens, fd_child_timens;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Open the current time namespace */
+	fd_parent_timens = open("/proc/self/ns/time", O_RDONLY);
+	if (fd_parent_timens < 0) {
+		SKIP(return, "Time namespaces not supported");
+	}
+
+	/* Get parent's time namespace ID */
+	ret = ioctl(fd_parent_timens, NS_GET_ID, &parent_time_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_time_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new time namespace */
+		ret = unshare(CLONE_NEWTIME);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES || errno == EINVAL) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Fork a grandchild to actually enter the new namespace */
+		pid_t grandchild = fork();
+		if (grandchild == 0) {
+			/* Grandchild is in the new namespace */
+			write(pipefd[1], "Y", 1);
+			close(pipefd[1]);
+			pause();
+			_exit(0);
+		} else if (grandchild > 0) {
+			/* Child writes grandchild PID and waits */
+			write(pipefd[1], "Y", 1);
+			write(pipefd[1], &grandchild, sizeof(grandchild));
+			close(pipefd[1]);
+			pause(); /* Keep the parent alive to maintain the grandchild */
+			_exit(0);
+		} else {
+			_exit(1);
+		}
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_timens);
+		close(pipefd[0]);
+		SKIP(return, "Cannot create time namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	pid_t grandchild_pid;
+	ASSERT_EQ(read(pipefd[0], &grandchild_pid, sizeof(grandchild_pid)), sizeof(grandchild_pid));
+	close(pipefd[0]);
+
+	/* Open grandchild's time namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/time", grandchild_pid);
+	fd_child_timens = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_timens, 0);
+
+	/* Get child's time namespace ID */
+	ret = ioctl(fd_child_timens, NS_GET_ID, &child_time_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_time_ns_id, 0);
+
+	/* Parent and child should have different time namespace IDs */
+	ASSERT_NE(parent_time_ns_id, child_time_ns_id);
+
+	close(fd_parent_timens);
+	close(fd_child_timens);
+}
+
+TEST(nsid_pidns_basic)
+{
+	__u64 pid_ns_id = 0;
+	int fd_pidns;
+	int ret;
+
+	/* Open the current PID namespace */
+	fd_pidns = open("/proc/self/ns/pid", O_RDONLY);
+	ASSERT_GE(fd_pidns, 0);
+
+	/* Get the PID namespace ID */
+	ret = ioctl(fd_pidns, NS_GET_ID, &pid_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(pid_ns_id, 0);
+
+	/* Verify we can get the same ID again */
+	__u64 pid_ns_id2 = 0;
+	ret = ioctl(fd_pidns, NS_GET_ID, &pid_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(pid_ns_id, pid_ns_id2);
+
+	close(fd_pidns);
+}
+
+TEST_F(nsid, pidns_separate)
+{
+	__u64 parent_pid_ns_id = 0;
+	__u64 child_pid_ns_id = 0;
+	int fd_parent_pidns, fd_child_pidns;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's PID namespace ID */
+	fd_parent_pidns = open("/proc/self/ns/pid", O_RDONLY);
+	ASSERT_GE(fd_parent_pidns, 0);
+	ret = ioctl(fd_parent_pidns, NS_GET_ID, &parent_pid_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_pid_ns_id, 0);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new PID namespace */
+		ret = unshare(CLONE_NEWPID);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Fork a grandchild to actually enter the new namespace */
+		pid_t grandchild = fork();
+		if (grandchild == 0) {
+			/* Grandchild is in the new namespace */
+			write(pipefd[1], "Y", 1);
+			close(pipefd[1]);
+			pause();
+			_exit(0);
+		} else if (grandchild > 0) {
+			/* Child writes grandchild PID and waits */
+			write(pipefd[1], "Y", 1);
+			write(pipefd[1], &grandchild, sizeof(grandchild));
+			close(pipefd[1]);
+			pause(); /* Keep the parent alive to maintain the grandchild */
+			_exit(0);
+		} else {
+			_exit(1);
+		}
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_pidns);
+		close(pipefd[0]);
+		SKIP(return, "No permission to create PID namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	pid_t grandchild_pid;
+	ASSERT_EQ(read(pipefd[0], &grandchild_pid, sizeof(grandchild_pid)), sizeof(grandchild_pid));
+	close(pipefd[0]);
+
+	/* Open grandchild's PID namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/pid", grandchild_pid);
+	fd_child_pidns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_pidns, 0);
+
+	/* Get child's PID namespace ID */
+	ret = ioctl(fd_child_pidns, NS_GET_ID, &child_pid_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_pid_ns_id, 0);
+
+	/* Parent and child should have different PID namespace IDs */
+	ASSERT_NE(parent_pid_ns_id, child_pid_ns_id);
+
+	close(fd_parent_pidns);
+	close(fd_child_pidns);
+}
+
+TEST(nsid_netns_basic)
+{
+	__u64 net_ns_id = 0;
+	__u64 netns_cookie = 0;
+	int fd_netns;
+	int sock;
+	socklen_t optlen;
+	int ret;
+
+	/* Open the current network namespace */
+	fd_netns = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(fd_netns, 0);
+
+	/* Get the network namespace ID via ioctl */
+	ret = ioctl(fd_netns, NS_GET_ID, &net_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(net_ns_id, 0);
+
+	/* Create a socket to get the SO_NETNS_COOKIE */
+	sock = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_GE(sock, 0);
+
+	/* Get the network namespace cookie via socket option */
+	optlen = sizeof(netns_cookie);
+	ret = getsockopt(sock, SOL_SOCKET, SO_NETNS_COOKIE, &netns_cookie, &optlen);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(optlen, sizeof(netns_cookie));
+
+	/* The namespace ID and cookie should be identical */
+	ASSERT_EQ(net_ns_id, netns_cookie);
+
+	/* Verify we can get the same ID again */
+	__u64 net_ns_id2 = 0;
+	ret = ioctl(fd_netns, NS_GET_ID, &net_ns_id2);
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(net_ns_id, net_ns_id2);
+
+	close(sock);
+	close(fd_netns);
+}
+
+TEST_F(nsid, netns_separate)
+{
+	__u64 parent_net_ns_id = 0;
+	__u64 parent_netns_cookie = 0;
+	__u64 child_net_ns_id = 0;
+	__u64 child_netns_cookie = 0;
+	int fd_parent_netns, fd_child_netns;
+	int parent_sock, child_sock;
+	socklen_t optlen;
+	int ret;
+	pid_t pid;
+	int pipefd[2];
+
+	/* Get parent's network namespace ID */
+	fd_parent_netns = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(fd_parent_netns, 0);
+	ret = ioctl(fd_parent_netns, NS_GET_ID, &parent_net_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(parent_net_ns_id, 0);
+
+	/* Get parent's network namespace cookie */
+	parent_sock = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_GE(parent_sock, 0);
+	optlen = sizeof(parent_netns_cookie);
+	ret = getsockopt(parent_sock, SOL_SOCKET, SO_NETNS_COOKIE, &parent_netns_cookie, &optlen);
+	ASSERT_EQ(ret, 0);
+
+	/* Verify parent's ID and cookie match */
+	ASSERT_EQ(parent_net_ns_id, parent_netns_cookie);
+
+	/* Create a pipe for synchronization */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child process */
+		close(pipefd[0]);
+
+		/* Create new network namespace */
+		ret = unshare(CLONE_NEWNET);
+		if (ret != 0) {
+			/* Skip test if we don't have permission */
+			if (errno == EPERM || errno == EACCES) {
+				write(pipefd[1], "S", 1); /* Signal skip */
+				_exit(0);
+			}
+			_exit(1);
+		}
+
+		/* Signal success */
+		write(pipefd[1], "Y", 1);
+		close(pipefd[1]);
+
+		/* Keep namespace alive */
+		pause();
+		_exit(0);
+	}
+
+	/* Track child for cleanup */
+	self->child_pid = pid;
+
+	/* Parent process */
+	close(pipefd[1]);
+
+	char buf;
+	ASSERT_EQ(read(pipefd[0], &buf, 1), 1);
+	close(pipefd[0]);
+
+	if (buf == 'S') {
+		/* Child couldn't create namespace, skip test */
+		close(fd_parent_netns);
+		close(parent_sock);
+		SKIP(return, "No permission to create network namespace");
+	}
+
+	ASSERT_EQ(buf, 'Y');
+
+	/* Open child's network namespace */
+	char path[256];
+	snprintf(path, sizeof(path), "/proc/%d/ns/net", pid);
+	fd_child_netns = open(path, O_RDONLY);
+	ASSERT_GE(fd_child_netns, 0);
+
+	/* Get child's network namespace ID */
+	ret = ioctl(fd_child_netns, NS_GET_ID, &child_net_ns_id);
+	ASSERT_EQ(ret, 0);
+	ASSERT_NE(child_net_ns_id, 0);
+
+	/* Create socket in child's namespace to get cookie */
+	ret = setns(fd_child_netns, CLONE_NEWNET);
+	if (ret == 0) {
+		child_sock = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_GE(child_sock, 0);
+
+		optlen = sizeof(child_netns_cookie);
+		ret = getsockopt(child_sock, SOL_SOCKET, SO_NETNS_COOKIE, &child_netns_cookie, &optlen);
+		ASSERT_EQ(ret, 0);
+
+		/* Verify child's ID and cookie match */
+		ASSERT_EQ(child_net_ns_id, child_netns_cookie);
+
+		close(child_sock);
+
+		/* Return to parent namespace */
+		setns(fd_parent_netns, CLONE_NEWNET);
+	}
+
+	/* Parent and child should have different network namespace IDs */
+	ASSERT_NE(parent_net_ns_id, child_net_ns_id);
+	if (child_netns_cookie != 0) {
+		ASSERT_NE(parent_netns_cookie, child_netns_cookie);
+	}
+
+	close(fd_parent_netns);
+	close(fd_child_netns);
+	close(parent_sock);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/regression_pidfd_setns_test.c b/tools/testing/selftests/namespaces/regression_pidfd_setns_test.c
new file mode 100644
index 000000000000..753fd29dffd8
--- /dev/null
+++ b/tools/testing/selftests/namespaces/regression_pidfd_setns_test.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include "../pidfd/pidfd.h"
+#include "../kselftest_harness.h"
+
+/*
+ * Regression tests for the setns(pidfd) active reference counting bug.
+ *
+ * These tests are based on the reproducers that triggered the race condition
+ * fixed by commit 1c465d0518dc ("ns: handle setns(pidfd, ...) cleanly").
+ *
+ * The bug: When using setns() with a pidfd, if the target task exits between
+ * prepare_nsset() and commit_nsset(), the namespaces would become inactive.
+ * Then ns_ref_active_get() would increment from 0 without properly resurrecting
+ * the owner chain, causing active reference count underflows.
+ */
+
+/*
+ * Simple pidfd setns test using create_child()+unshare().
+ *
+ * Without the fix, this would trigger active refcount warnings when the
+ * parent exits after doing setns(pidfd) on a child that has already exited.
+ */
+TEST(simple_pidfd_setns)
+{
+	pid_t child_pid;
+	int pidfd = -1;
+	int ret;
+	int sv[2];
+	char c;
+
+	/* Ignore SIGCHLD for autoreap */
+	ASSERT_NE(signal(SIGCHLD, SIG_IGN), SIG_ERR);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	/* Create a child process without namespaces initially */
+	child_pid = create_child(&pidfd, 0);
+	ASSERT_GE(child_pid, 0);
+
+	if (child_pid == 0) {
+		close(sv[0]);
+
+		if (unshare(CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWNET | CLONE_NEWUSER) < 0) {
+			close(sv[1]);
+			_exit(1);
+		}
+
+		/* Signal parent that namespaces are ready */
+		if (write_nointr(sv[1], "1", 1) < 0) {
+			close(sv[1]);
+			_exit(1);
+		}
+
+		close(sv[1]);
+		_exit(0);
+	}
+	ASSERT_GE(pidfd, 0);
+	EXPECT_EQ(close(sv[1]), 0);
+
+	ret = read_nointr(sv[0], &c, 1);
+	ASSERT_EQ(ret, 1);
+	EXPECT_EQ(close(sv[0]), 0);
+
+	/* Set to child's namespaces via pidfd */
+	ret = setns(pidfd, CLONE_NEWUTS | CLONE_NEWIPC);
+	TH_LOG("setns() returned %d", ret);
+	close(pidfd);
+}
+
+/*
+ * Simple pidfd setns test using create_child().
+ *
+ * This variation uses create_child() with namespace flags directly.
+ * Namespaces are created immediately at clone time.
+ */
+TEST(simple_pidfd_setns_clone)
+{
+	pid_t child_pid;
+	int pidfd = -1;
+	int ret;
+
+	/* Ignore SIGCHLD for autoreap */
+	ASSERT_NE(signal(SIGCHLD, SIG_IGN), SIG_ERR);
+
+	/* Create a child process with new namespaces using create_child() */
+	child_pid = create_child(&pidfd, CLONE_NEWUSER | CLONE_NEWUTS | CLONE_NEWIPC | CLONE_NEWNET);
+	ASSERT_GE(child_pid, 0);
+
+	if (child_pid == 0) {
+		/* Child: sleep for a while so parent can setns to us */
+		sleep(2);
+		_exit(0);
+	}
+
+	/* Parent: pidfd was already created by create_child() */
+	ASSERT_GE(pidfd, 0);
+
+	/* Set to child's namespaces via pidfd */
+	ret = setns(pidfd, CLONE_NEWUTS | CLONE_NEWIPC);
+	close(pidfd);
+	TH_LOG("setns() returned %d", ret);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/siocgskns_test.c b/tools/testing/selftests/namespaces/siocgskns_test.c
new file mode 100644
index 000000000000..ba689a22d82f
--- /dev/null
+++ b/tools/testing/selftests/namespaces/siocgskns_test.c
@@ -0,0 +1,1824 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/if.h>
+#include <linux/sockios.h>
+#include <linux/nsfs.h>
+#include <arpa/inet.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+#ifndef SIOCGSKNS
+#define SIOCGSKNS 0x894C
+#endif
+
+#ifndef FD_NSFS_ROOT
+#define FD_NSFS_ROOT -10003
+#endif
+
+#ifndef FILEID_NSFS
+#define FILEID_NSFS 0xf1
+#endif
+
+/*
+ * Test basic SIOCGSKNS functionality.
+ * Create a socket and verify SIOCGSKNS returns the correct network namespace.
+ */
+TEST(siocgskns_basic)
+{
+	int sock_fd, netns_fd, current_netns_fd;
+	struct stat st1, st2;
+
+	/* Create a TCP socket */
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(sock_fd, 0);
+
+	/* Use SIOCGSKNS to get network namespace */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	/* Get current network namespace */
+	current_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(current_netns_fd, 0);
+
+	/* Verify they match */
+	ASSERT_EQ(fstat(netns_fd, &st1), 0);
+	ASSERT_EQ(fstat(current_netns_fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+
+	close(sock_fd);
+	close(netns_fd);
+	close(current_netns_fd);
+}
+
+/*
+ * Test that socket file descriptors keep network namespaces active.
+ * Create a network namespace, create a socket in it, then exit the namespace.
+ * The namespace should remain active while the socket FD is held.
+ */
+TEST(siocgskns_keeps_netns_active)
+{
+	int sock_fd, netns_fd, test_fd;
+	int ipc_sockets[2];
+	pid_t pid;
+	int status;
+	struct stat st;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child: create new netns and socket */
+		close(ipc_sockets[0]);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			TH_LOG("unshare(CLONE_NEWNET) failed: %s", strerror(errno));
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Create a socket in the new network namespace */
+		sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+		if (sock_fd < 0) {
+			TH_LOG("socket() failed: %s", strerror(errno));
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Send socket FD to parent via SCM_RIGHTS */
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1] = {'X'};
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(sock_fd);
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		close(sock_fd);
+		close(ipc_sockets[1]);
+		exit(0);
+	}
+
+	/* Parent: receive socket FD */
+	close(ipc_sockets[1]);
+
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+	ASSERT_EQ(n, 1);
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	ASSERT_NE(cmsg, NULL);
+	ASSERT_EQ(cmsg->cmsg_type, SCM_RIGHTS);
+
+	memcpy(&sock_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	ASSERT_EQ(fstat(netns_fd, &st), 0);
+
+	/*
+	 * Namespace should still be active because socket FD keeps it alive.
+	 * Try to access it via /proc/self/fd/<fd>.
+	 */
+	char path[64];
+	snprintf(path, sizeof(path), "/proc/self/fd/%d", netns_fd);
+	test_fd = open(path, O_RDONLY);
+	ASSERT_GE(test_fd, 0);
+	close(test_fd);
+	close(netns_fd);
+
+	/* Close socket - namespace should become inactive */
+	close(sock_fd);
+
+	/* Try SIOCGSKNS again - should fail since socket is closed */
+	ASSERT_LT(ioctl(sock_fd, SIOCGSKNS), 0);
+}
+
+/*
+ * Test SIOCGSKNS with different socket types (TCP, UDP, RAW).
+ */
+TEST(siocgskns_socket_types)
+{
+	int sock_tcp, sock_udp, sock_raw;
+	int netns_tcp, netns_udp, netns_raw;
+	struct stat st_tcp, st_udp, st_raw;
+
+	/* TCP socket */
+	sock_tcp = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(sock_tcp, 0);
+
+	/* UDP socket */
+	sock_udp = socket(AF_INET, SOCK_DGRAM, 0);
+	ASSERT_GE(sock_udp, 0);
+
+	/* RAW socket (may require privileges) */
+	sock_raw = socket(AF_INET, SOCK_RAW, IPPROTO_ICMP);
+	if (sock_raw < 0 && (errno == EPERM || errno == EACCES)) {
+		sock_raw = -1; /* Skip raw socket test */
+	}
+
+	/* Test SIOCGSKNS on TCP */
+	netns_tcp = ioctl(sock_tcp, SIOCGSKNS);
+	if (netns_tcp < 0) {
+		close(sock_tcp);
+		close(sock_udp);
+		if (sock_raw >= 0) close(sock_raw);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_tcp, 0);
+	}
+
+	/* Test SIOCGSKNS on UDP */
+	netns_udp = ioctl(sock_udp, SIOCGSKNS);
+	ASSERT_GE(netns_udp, 0);
+
+	/* Test SIOCGSKNS on RAW (if available) */
+	if (sock_raw >= 0) {
+		netns_raw = ioctl(sock_raw, SIOCGSKNS);
+		ASSERT_GE(netns_raw, 0);
+	}
+
+	/* Verify all return the same network namespace */
+	ASSERT_EQ(fstat(netns_tcp, &st_tcp), 0);
+	ASSERT_EQ(fstat(netns_udp, &st_udp), 0);
+	ASSERT_EQ(st_tcp.st_ino, st_udp.st_ino);
+
+	if (sock_raw >= 0) {
+		ASSERT_EQ(fstat(netns_raw, &st_raw), 0);
+		ASSERT_EQ(st_tcp.st_ino, st_raw.st_ino);
+		close(netns_raw);
+		close(sock_raw);
+	}
+
+	close(netns_tcp);
+	close(netns_udp);
+	close(sock_tcp);
+	close(sock_udp);
+}
+
+/*
+ * Test SIOCGSKNS across setns.
+ * Create a socket in netns A, switch to netns B, verify SIOCGSKNS still
+ * returns netns A.
+ */
+TEST(siocgskns_across_setns)
+{
+	int sock_fd, netns_a_fd, netns_b_fd, result_fd;
+	struct stat st_a;
+
+	/* Get current netns (A) */
+	netns_a_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(netns_a_fd, 0);
+	ASSERT_EQ(fstat(netns_a_fd, &st_a), 0);
+
+	/* Create socket in netns A */
+	sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(sock_fd, 0);
+
+	/* Create new netns (B) */
+	ASSERT_EQ(unshare(CLONE_NEWNET), 0);
+
+	netns_b_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(netns_b_fd, 0);
+
+	/* Get netns from socket created in A */
+	result_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (result_fd < 0) {
+		close(sock_fd);
+		setns(netns_a_fd, CLONE_NEWNET);
+		close(netns_a_fd);
+		close(netns_b_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(result_fd, 0);
+	}
+
+	/* Verify it still points to netns A */
+	struct stat st_result_stat;
+	ASSERT_EQ(fstat(result_fd, &st_result_stat), 0);
+	ASSERT_EQ(st_a.st_ino, st_result_stat.st_ino);
+
+	close(result_fd);
+	close(sock_fd);
+	close(netns_b_fd);
+
+	/* Restore original netns */
+	ASSERT_EQ(setns(netns_a_fd, CLONE_NEWNET), 0);
+	close(netns_a_fd);
+}
+
+/*
+ * Test SIOCGSKNS fails on non-socket file descriptors.
+ */
+TEST(siocgskns_non_socket)
+{
+	int fd;
+	int pipefd[2];
+
+	/* Test on regular file */
+	fd = open("/dev/null", O_RDONLY);
+	ASSERT_GE(fd, 0);
+
+	ASSERT_LT(ioctl(fd, SIOCGSKNS), 0);
+	ASSERT_TRUE(errno == ENOTTY || errno == EINVAL);
+	close(fd);
+
+	/* Test on pipe */
+	ASSERT_EQ(pipe(pipefd), 0);
+
+	ASSERT_LT(ioctl(pipefd[0], SIOCGSKNS), 0);
+	ASSERT_TRUE(errno == ENOTTY || errno == EINVAL);
+
+	close(pipefd[0]);
+	close(pipefd[1]);
+}
+
+/*
+ * Test multiple sockets keep the same network namespace active.
+ * Create multiple sockets, verify closing some doesn't affect others.
+ */
+TEST(siocgskns_multiple_sockets)
+{
+	int socks[5];
+	int netns_fds[5];
+	int i;
+	struct stat st;
+	ino_t netns_ino;
+
+	/* Create new network namespace */
+	ASSERT_EQ(unshare(CLONE_NEWNET), 0);
+
+	/* Create multiple sockets */
+	for (i = 0; i < 5; i++) {
+		socks[i] = socket(AF_INET, SOCK_STREAM, 0);
+		ASSERT_GE(socks[i], 0);
+	}
+
+	/* Get netns from all sockets */
+	for (i = 0; i < 5; i++) {
+		netns_fds[i] = ioctl(socks[i], SIOCGSKNS);
+		if (netns_fds[i] < 0) {
+			int j;
+			for (j = 0; j <= i; j++) {
+				close(socks[j]);
+				if (j < i && netns_fds[j] >= 0)
+					close(netns_fds[j]);
+			}
+			if (errno == ENOTTY || errno == EINVAL)
+				SKIP(return, "SIOCGSKNS not supported");
+			ASSERT_GE(netns_fds[i], 0);
+		}
+	}
+
+	/* Verify all point to same netns */
+	ASSERT_EQ(fstat(netns_fds[0], &st), 0);
+	netns_ino = st.st_ino;
+
+	for (i = 1; i < 5; i++) {
+		ASSERT_EQ(fstat(netns_fds[i], &st), 0);
+		ASSERT_EQ(st.st_ino, netns_ino);
+	}
+
+	/* Close some sockets */
+	for (i = 0; i < 3; i++) {
+		close(socks[i]);
+	}
+
+	/* Remaining netns FDs should still be valid */
+	for (i = 3; i < 5; i++) {
+		char path[64];
+		snprintf(path, sizeof(path), "/proc/self/fd/%d", netns_fds[i]);
+		int test_fd = open(path, O_RDONLY);
+		ASSERT_GE(test_fd, 0);
+		close(test_fd);
+	}
+
+	/* Cleanup */
+	for (i = 0; i < 5; i++) {
+		if (i >= 3)
+			close(socks[i]);
+		close(netns_fds[i]);
+	}
+}
+
+/*
+ * Test socket keeps netns active after creating process exits.
+ * Verify that as long as the socket FD exists, the namespace remains active.
+ */
+TEST(siocgskns_netns_lifecycle)
+{
+	int sock_fd, netns_fd;
+	int ipc_sockets[2];
+	int syncpipe[2];
+	pid_t pid;
+	int status;
+	char sync_byte;
+	struct stat st;
+	ino_t netns_ino;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	ASSERT_EQ(pipe(syncpipe), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child */
+		close(ipc_sockets[0]);
+		close(syncpipe[1]);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(ipc_sockets[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		sock_fd = socket(AF_INET, SOCK_STREAM, 0);
+		if (sock_fd < 0) {
+			close(ipc_sockets[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		/* Send socket to parent */
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1] = {'X'};
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(sock_fd);
+			close(ipc_sockets[1]);
+			close(syncpipe[0]);
+			exit(1);
+		}
+
+		close(sock_fd);
+		close(ipc_sockets[1]);
+
+		/* Wait for parent signal */
+		read(syncpipe[0], &sync_byte, 1);
+		close(syncpipe[0]);
+		exit(0);
+	}
+
+	/* Parent */
+	close(ipc_sockets[1]);
+	close(syncpipe[0]);
+
+	/* Receive socket FD */
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+	ASSERT_EQ(n, 1);
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	ASSERT_NE(cmsg, NULL);
+	memcpy(&sock_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Get netns from socket while child is alive */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		sync_byte = 'G';
+		write(syncpipe[1], &sync_byte, 1);
+		close(syncpipe[1]);
+		close(sock_fd);
+		waitpid(pid, NULL, 0);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+	ASSERT_EQ(fstat(netns_fd, &st), 0);
+	netns_ino = st.st_ino;
+
+	/* Signal child to exit */
+	sync_byte = 'G';
+	write(syncpipe[1], &sync_byte, 1);
+	close(syncpipe[1]);
+
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+
+	/*
+	 * Socket FD should still keep namespace active even after
+	 * the creating process exited.
+	 */
+	int test_fd = ioctl(sock_fd, SIOCGSKNS);
+	ASSERT_GE(test_fd, 0);
+
+	struct stat st_test;
+	ASSERT_EQ(fstat(test_fd, &st_test), 0);
+	ASSERT_EQ(st_test.st_ino, netns_ino);
+
+	close(test_fd);
+	close(netns_fd);
+
+	/* Close socket - namespace should become inactive */
+	close(sock_fd);
+}
+
+/*
+ * Test IPv6 sockets also work with SIOCGSKNS.
+ */
+TEST(siocgskns_ipv6)
+{
+	int sock_fd, netns_fd, current_netns_fd;
+	struct stat st1, st2;
+
+	/* Create an IPv6 TCP socket */
+	sock_fd = socket(AF_INET6, SOCK_STREAM, 0);
+	ASSERT_GE(sock_fd, 0);
+
+	/* Use SIOCGSKNS */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	/* Verify it matches current namespace */
+	current_netns_fd = open("/proc/self/ns/net", O_RDONLY);
+	ASSERT_GE(current_netns_fd, 0);
+
+	ASSERT_EQ(fstat(netns_fd, &st1), 0);
+	ASSERT_EQ(fstat(current_netns_fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+
+	close(sock_fd);
+	close(netns_fd);
+	close(current_netns_fd);
+}
+
+/*
+ * Test that socket-kept netns appears in listns() output.
+ * Verify that a network namespace kept alive by a socket FD appears in
+ * listns() output even after the creating process exits, and that it
+ * disappears when the socket is closed.
+ */
+TEST(siocgskns_listns_visibility)
+{
+	int sock_fd, netns_fd, owner_fd;
+	int ipc_sockets[2];
+	pid_t pid;
+	int status;
+	__u64 netns_id, owner_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	int ret, i;
+	bool found_netns = false;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child: create new netns and socket */
+		close(ipc_sockets[0]);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+		if (sock_fd < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Send socket FD to parent via SCM_RIGHTS */
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1] = {'X'};
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(sock_fd);
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		close(sock_fd);
+		close(ipc_sockets[1]);
+		exit(0);
+	}
+
+	/* Parent: receive socket FD */
+	close(ipc_sockets[1]);
+
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+	ASSERT_EQ(n, 1);
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	ASSERT_NE(cmsg, NULL);
+	memcpy(&sock_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	/* Get namespace ID */
+	ret = ioctl(netns_fd, NS_GET_ID, &netns_id);
+	if (ret < 0) {
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_ID not supported");
+		ASSERT_EQ(ret, 0);
+	}
+
+	/* Get owner user namespace */
+	owner_fd = ioctl(netns_fd, NS_GET_USERNS);
+	if (owner_fd < 0) {
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_USERNS not supported");
+		ASSERT_GE(owner_fd, 0);
+	}
+
+	/* Get owner namespace ID */
+	ret = ioctl(owner_fd, NS_GET_ID, &owner_id);
+	if (ret < 0) {
+		close(owner_fd);
+		close(sock_fd);
+		close(netns_fd);
+		ASSERT_EQ(ret, 0);
+	}
+	close(owner_fd);
+
+	/* Namespace should appear in listns() output */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s", strerror(errno));
+		ASSERT_GE(ret, 0);
+	}
+
+	/* Search for our network namespace in the list */
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id) {
+			found_netns = true;
+			break;
+		}
+	}
+
+	ASSERT_TRUE(found_netns);
+	TH_LOG("Found netns %llu in listns() output (kept alive by socket)", netns_id);
+
+	/* Now verify with owner filtering */
+	req.user_ns_id = owner_id;
+	found_netns = false;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id) {
+			found_netns = true;
+			break;
+		}
+	}
+
+	ASSERT_TRUE(found_netns);
+	TH_LOG("Found netns %llu owned by userns %llu", netns_id, owner_id);
+
+	/* Close socket - namespace should become inactive and disappear from listns() */
+	close(sock_fd);
+	close(netns_fd);
+
+	/* Verify it's no longer in listns() output */
+	req.user_ns_id = 0;
+	found_netns = false;
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id) {
+			found_netns = true;
+			break;
+		}
+	}
+
+	ASSERT_FALSE(found_netns);
+	TH_LOG("Netns %llu correctly disappeared from listns() after socket closed", netns_id);
+}
+
+/*
+ * Test that socket-kept netns can be reopened via file handle.
+ * Verify that a network namespace kept alive by a socket FD can be
+ * reopened using file handles even after the creating process exits.
+ */
+TEST(siocgskns_file_handle)
+{
+	int sock_fd, netns_fd, reopened_fd;
+	int ipc_sockets[2];
+	pid_t pid;
+	int status;
+	struct stat st1, st2;
+	ino_t netns_ino;
+	__u64 netns_id;
+	struct file_handle *handle;
+	struct nsfs_file_handle *nsfs_fh;
+	int ret;
+
+	/* Allocate file_handle structure for nsfs */
+	handle = malloc(sizeof(struct file_handle) + sizeof(struct nsfs_file_handle));
+	ASSERT_NE(handle, NULL);
+	handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	handle->handle_type = FILEID_NSFS;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child: create new netns and socket */
+		close(ipc_sockets[0]);
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+		if (sock_fd < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Send socket FD to parent via SCM_RIGHTS */
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1] = {'X'};
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(sock_fd);
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		close(sock_fd);
+		close(ipc_sockets[1]);
+		exit(0);
+	}
+
+	/* Parent: receive socket FD */
+	close(ipc_sockets[1]);
+
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+	ASSERT_EQ(n, 1);
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	ASSERT_NE(cmsg, NULL);
+	memcpy(&sock_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	ASSERT_EQ(fstat(netns_fd, &st1), 0);
+	netns_ino = st1.st_ino;
+
+	/* Get namespace ID */
+	ret = ioctl(netns_fd, NS_GET_ID, &netns_id);
+	if (ret < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_ID not supported");
+		ASSERT_EQ(ret, 0);
+	}
+
+	/* Construct file handle from namespace ID */
+	nsfs_fh = (struct nsfs_file_handle *)handle->f_handle;
+	nsfs_fh->ns_id = netns_id;
+	nsfs_fh->ns_type = 0;  /* Type field not needed for reopening */
+	nsfs_fh->ns_inum = 0;  /* Inum field not needed for reopening */
+
+	TH_LOG("Constructed file handle for netns %lu (id=%llu)", netns_ino, netns_id);
+
+	/* Reopen namespace using file handle (while socket still keeps it alive) */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == EOPNOTSUPP || errno == ENOSYS || errno == EBADF)
+			SKIP(return, "open_by_handle_at with FD_NSFS_ROOT not supported");
+		TH_LOG("open_by_handle_at failed: %s", strerror(errno));
+		ASSERT_GE(reopened_fd, 0);
+	}
+
+	/* Verify it's the same namespace */
+	ASSERT_EQ(fstat(reopened_fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	TH_LOG("Successfully reopened netns %lu via file handle", netns_ino);
+
+	close(reopened_fd);
+
+	/* Close the netns FD */
+	close(netns_fd);
+
+	/* Try to reopen via file handle - should fail since namespace is now inactive */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(reopened_fd, 0);
+	TH_LOG("Correctly failed to reopen inactive netns: %s", strerror(errno));
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	/* Reopen namespace using file handle (while socket still keeps it alive) */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == EOPNOTSUPP || errno == ENOSYS || errno == EBADF)
+			SKIP(return, "open_by_handle_at with FD_NSFS_ROOT not supported");
+		TH_LOG("open_by_handle_at failed: %s", strerror(errno));
+		ASSERT_GE(reopened_fd, 0);
+	}
+
+	/* Verify it's the same namespace */
+	ASSERT_EQ(fstat(reopened_fd, &st2), 0);
+	ASSERT_EQ(st1.st_ino, st2.st_ino);
+	ASSERT_EQ(st1.st_dev, st2.st_dev);
+
+	TH_LOG("Successfully reopened netns %lu via file handle", netns_ino);
+
+	/* Close socket - namespace should become inactive */
+	close(sock_fd);
+	free(handle);
+}
+
+/*
+ * Test combined listns() and file handle operations with socket-kept netns.
+ * Create a netns, keep it alive with a socket, verify it appears in listns(),
+ * then reopen it via file handle obtained from listns() entry.
+ */
+TEST(siocgskns_listns_and_file_handle)
+{
+	int sock_fd, netns_fd, userns_fd, reopened_fd;
+	int ipc_sockets[2];
+	pid_t pid;
+	int status;
+	struct stat st;
+	ino_t netns_ino;
+	__u64 netns_id, userns_id;
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET | CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	int ret, i;
+	bool found_netns = false, found_userns = false;
+	struct file_handle *handle;
+	struct nsfs_file_handle *nsfs_fh;
+
+	/* Allocate file_handle structure for nsfs */
+	handle = malloc(sizeof(struct file_handle) + sizeof(struct nsfs_file_handle));
+	ASSERT_NE(handle, NULL);
+	handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	handle->handle_type = FILEID_NSFS;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* Child: create new userns and netns with socket */
+		close(ipc_sockets[0]);
+
+		if (setup_userns() < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		if (unshare(CLONE_NEWNET) < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+		if (sock_fd < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Send socket FD to parent via SCM_RIGHTS */
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1] = {'X'};
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(sock_fd);
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		close(sock_fd);
+		close(ipc_sockets[1]);
+		exit(0);
+	}
+
+	/* Parent: receive socket FD */
+	close(ipc_sockets[1]);
+
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+	ASSERT_EQ(n, 1);
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	ASSERT_NE(cmsg, NULL);
+	memcpy(&sock_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Wait for child to exit */
+	waitpid(pid, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	ASSERT_EQ(fstat(netns_fd, &st), 0);
+	netns_ino = st.st_ino;
+
+	/* Get namespace ID */
+	ret = ioctl(netns_fd, NS_GET_ID, &netns_id);
+	if (ret < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_ID not supported");
+		ASSERT_EQ(ret, 0);
+	}
+
+	/* Get owner user namespace */
+	userns_fd = ioctl(netns_fd, NS_GET_USERNS);
+	if (userns_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_USERNS not supported");
+		ASSERT_GE(userns_fd, 0);
+	}
+
+	/* Get owner namespace ID */
+	ret = ioctl(userns_fd, NS_GET_ID, &userns_id);
+	if (ret < 0) {
+		close(userns_fd);
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		ASSERT_EQ(ret, 0);
+	}
+	close(userns_fd);
+
+	TH_LOG("Testing netns %lu (id=%llu) owned by userns id=%llu", netns_ino, netns_id, userns_id);
+
+	/* Verify namespace appears in listns() */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s", strerror(errno));
+		ASSERT_GE(ret, 0);
+	}
+
+	found_netns = false;
+	found_userns = false;
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id)
+			found_netns = true;
+		if (ns_ids[i] == userns_id)
+			found_userns = true;
+	}
+	ASSERT_TRUE(found_netns);
+	ASSERT_TRUE(found_userns);
+	TH_LOG("Found netns %llu in listns() output", netns_id);
+
+	/* Construct file handle from namespace ID */
+	nsfs_fh = (struct nsfs_file_handle *)handle->f_handle;
+	nsfs_fh->ns_id = netns_id;
+	nsfs_fh->ns_type = 0;
+	nsfs_fh->ns_inum = 0;
+
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == EOPNOTSUPP || errno == ENOSYS || errno == EBADF)
+			SKIP(return, "open_by_handle_at with FD_NSFS_ROOT not supported");
+		TH_LOG("open_by_handle_at failed: %s", strerror(errno));
+		ASSERT_GE(reopened_fd, 0);
+	}
+
+	struct stat reopened_st;
+	ASSERT_EQ(fstat(reopened_fd, &reopened_st), 0);
+	ASSERT_EQ(reopened_st.st_ino, netns_ino);
+
+	TH_LOG("Successfully reopened netns %lu via file handle (socket-kept)", netns_ino);
+
+	close(reopened_fd);
+	close(netns_fd);
+
+	/* Try to reopen via file handle - should fail since namespace is now inactive */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	ASSERT_LT(reopened_fd, 0);
+	TH_LOG("Correctly failed to reopen inactive netns: %s", strerror(errno));
+
+	/* Get network namespace from socket */
+	netns_fd = ioctl(sock_fd, SIOCGSKNS);
+	if (netns_fd < 0) {
+		free(handle);
+		close(sock_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_fd, 0);
+	}
+
+	/* Verify namespace appears in listns() */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s", strerror(errno));
+		ASSERT_GE(ret, 0);
+	}
+
+	found_netns = false;
+	found_userns = false;
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id)
+			found_netns = true;
+		if (ns_ids[i] == userns_id)
+			found_userns = true;
+	}
+	ASSERT_TRUE(found_netns);
+	ASSERT_TRUE(found_userns);
+	TH_LOG("Found netns %llu in listns() output", netns_id);
+
+	close(netns_fd);
+
+	/* Verify namespace appears in listns() */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		free(handle);
+		close(sock_fd);
+		close(netns_fd);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		TH_LOG("listns failed: %s", strerror(errno));
+		ASSERT_GE(ret, 0);
+	}
+
+	found_netns = false;
+	found_userns = false;
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_id)
+			found_netns = true;
+		if (ns_ids[i] == userns_id)
+			found_userns = true;
+	}
+	ASSERT_FALSE(found_netns);
+	ASSERT_FALSE(found_userns);
+	TH_LOG("Netns %llu correctly disappeared from listns() after socket closed", netns_id);
+
+	close(sock_fd);
+	free(handle);
+}
+
+/*
+ * Test multi-level namespace resurrection across three user namespace levels.
+ *
+ * This test creates a complex namespace hierarchy with three levels of user
+ * namespaces and a network namespace at the deepest level. It verifies that
+ * the resurrection semantics work correctly when SIOCGSKNS is called on a
+ * socket from an inactive namespace tree, and that listns() and
+ * open_by_handle_at() correctly respect visibility rules.
+ *
+ * Hierarchy after child processes exit (all with 0 active refcount):
+ *
+ *          net_L3A (0)                <- Level 3 network namespace
+ *              |
+ *              +
+ *          userns_L3 (0)              <- Level 3 user namespace
+ *              |
+ *              +
+ *          userns_L2 (0)              <- Level 2 user namespace
+ *              |
+ *              +
+ *          userns_L1 (0)              <- Level 1 user namespace
+ *              |
+ *              x
+ *          init_user_ns
+ *
+ * The test verifies:
+ * 1. SIOCGSKNS on a socket from inactive net_L3A resurrects the entire chain
+ * 2. After resurrection, all namespaces are visible in listns()
+ * 3. Resurrected namespaces can be reopened via file handles
+ * 4. Closing the netns FD cascades down: the entire ownership chain
+ *    (userns_L3 -> userns_L2 -> userns_L1) becomes inactive again
+ * 5. Inactive namespaces disappear from listns() and cannot be reopened
+ * 6. Calling SIOCGSKNS again on the same socket resurrects the tree again
+ * 7. After second resurrection, namespaces are visible and can be reopened
+ */
+TEST(siocgskns_multilevel_resurrection)
+{
+	int ipc_sockets[2];
+	pid_t pid_l1, pid_l2, pid_l3;
+	int status;
+
+	/* Namespace file descriptors to be received from child */
+	int sock_L3A_fd = -1;
+	int netns_L3A_fd = -1;
+	__u64 netns_L3A_id;
+	__u64 userns_L1_id, userns_L2_id, userns_L3_id;
+
+	/* For listns() and file handle testing */
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWNET | CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids[256];
+	int ret, i;
+	struct file_handle *handle;
+	struct nsfs_file_handle *nsfs_fh;
+	int reopened_fd;
+
+	/* Allocate file handle for testing */
+	handle = malloc(sizeof(struct file_handle) + sizeof(struct nsfs_file_handle));
+	ASSERT_NE(handle, NULL);
+	handle->handle_bytes = sizeof(struct nsfs_file_handle);
+	handle->handle_type = FILEID_NSFS;
+
+	EXPECT_EQ(socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets), 0);
+
+	/*
+	 * Fork level 1 child that creates userns_L1
+	 */
+	pid_l1 = fork();
+	ASSERT_GE(pid_l1, 0);
+
+	if (pid_l1 == 0) {
+		/* Level 1 child */
+		int ipc_L2[2];
+		close(ipc_sockets[0]);
+
+		/* Create userns_L1 */
+		if (setup_userns() < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/* Create socketpair for communicating with L2 child */
+		if (socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_L2) < 0) {
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		/*
+		 * Fork level 2 child that creates userns_L2
+		 */
+		pid_l2 = fork();
+		if (pid_l2 < 0) {
+			close(ipc_sockets[1]);
+			close(ipc_L2[0]);
+			close(ipc_L2[1]);
+			exit(1);
+		}
+
+		if (pid_l2 == 0) {
+			/* Level 2 child */
+			int ipc_L3[2];
+			close(ipc_L2[0]);
+
+			/* Create userns_L2 (nested inside userns_L1) */
+			if (setup_userns() < 0) {
+				close(ipc_L2[1]);
+				exit(1);
+			}
+
+			/* Create socketpair for communicating with L3 child */
+			if (socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_L3) < 0) {
+				close(ipc_L2[1]);
+				exit(1);
+			}
+
+			/*
+			 * Fork level 3 child that creates userns_L3 and network namespaces
+			 */
+			pid_l3 = fork();
+			if (pid_l3 < 0) {
+				close(ipc_L2[1]);
+				close(ipc_L3[0]);
+				close(ipc_L3[1]);
+				exit(1);
+			}
+
+			if (pid_l3 == 0) {
+				/* Level 3 child - the deepest level */
+				int sock_fd;
+				close(ipc_L3[0]);
+
+				/* Create userns_L3 (nested inside userns_L2) */
+				if (setup_userns() < 0) {
+					close(ipc_L3[1]);
+					exit(1);
+				}
+
+				/* Create network namespace at level 3 */
+				if (unshare(CLONE_NEWNET) < 0) {
+					close(ipc_L3[1]);
+					exit(1);
+				}
+
+				/* Create socket in net_L3A */
+				sock_fd = socket(AF_INET, SOCK_DGRAM, 0);
+				if (sock_fd < 0) {
+					close(ipc_L3[1]);
+					exit(1);
+				}
+
+				/* Send socket FD to L2 parent */
+				struct msghdr msg = {0};
+				struct iovec iov = {0};
+				char buf[1] = {'X'};
+				char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+				iov.iov_base = buf;
+				iov.iov_len = 1;
+				msg.msg_iov = &iov;
+				msg.msg_iovlen = 1;
+				msg.msg_control = cmsg_buf;
+				msg.msg_controllen = sizeof(cmsg_buf);
+
+				struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+				cmsg->cmsg_level = SOL_SOCKET;
+				cmsg->cmsg_type = SCM_RIGHTS;
+				cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+				memcpy(CMSG_DATA(cmsg), &sock_fd, sizeof(int));
+
+				if (sendmsg(ipc_L3[1], &msg, 0) < 0) {
+					close(sock_fd);
+					close(ipc_L3[1]);
+					exit(1);
+				}
+
+				close(sock_fd);
+				close(ipc_L3[1]);
+				exit(0);
+			}
+
+			/* Level 2 child - receive from L3 and forward to L1 */
+			close(ipc_L3[1]);
+
+			struct msghdr msg = {0};
+			struct iovec iov = {0};
+			char buf[1];
+			char cmsg_buf[CMSG_SPACE(sizeof(int))];
+			int received_fd;
+
+			iov.iov_base = buf;
+			iov.iov_len = 1;
+			msg.msg_iov = &iov;
+			msg.msg_iovlen = 1;
+			msg.msg_control = cmsg_buf;
+			msg.msg_controllen = sizeof(cmsg_buf);
+
+			ssize_t n = recvmsg(ipc_L3[0], &msg, 0);
+			close(ipc_L3[0]);
+
+			if (n != 1) {
+				close(ipc_L2[1]);
+				waitpid(pid_l3, NULL, 0);
+				exit(1);
+			}
+
+			struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+			if (!cmsg) {
+				close(ipc_L2[1]);
+				waitpid(pid_l3, NULL, 0);
+				exit(1);
+			}
+			memcpy(&received_fd, CMSG_DATA(cmsg), sizeof(int));
+
+			/* Wait for L3 child */
+			waitpid(pid_l3, NULL, 0);
+
+			/* Forward the socket FD to L1 parent */
+			memset(&msg, 0, sizeof(msg));
+			buf[0] = 'Y';
+			iov.iov_base = buf;
+			iov.iov_len = 1;
+			msg.msg_iov = &iov;
+			msg.msg_iovlen = 1;
+			msg.msg_control = cmsg_buf;
+			msg.msg_controllen = sizeof(cmsg_buf);
+
+			cmsg = CMSG_FIRSTHDR(&msg);
+			cmsg->cmsg_level = SOL_SOCKET;
+			cmsg->cmsg_type = SCM_RIGHTS;
+			cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+			memcpy(CMSG_DATA(cmsg), &received_fd, sizeof(int));
+
+			if (sendmsg(ipc_L2[1], &msg, 0) < 0) {
+				close(received_fd);
+				close(ipc_L2[1]);
+				exit(1);
+			}
+
+			close(received_fd);
+			close(ipc_L2[1]);
+			exit(0);
+		}
+
+		/* Level 1 child - receive from L2 and forward to parent */
+		close(ipc_L2[1]);
+
+		struct msghdr msg = {0};
+		struct iovec iov = {0};
+		char buf[1];
+		char cmsg_buf[CMSG_SPACE(sizeof(int))];
+		int received_fd;
+
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		ssize_t n = recvmsg(ipc_L2[0], &msg, 0);
+		close(ipc_L2[0]);
+
+		if (n != 1) {
+			close(ipc_sockets[1]);
+			waitpid(pid_l2, NULL, 0);
+			exit(1);
+		}
+
+		struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+		if (!cmsg) {
+			close(ipc_sockets[1]);
+			waitpid(pid_l2, NULL, 0);
+			exit(1);
+		}
+		memcpy(&received_fd, CMSG_DATA(cmsg), sizeof(int));
+
+		/* Wait for L2 child */
+		waitpid(pid_l2, NULL, 0);
+
+		/* Forward the socket FD to parent */
+		memset(&msg, 0, sizeof(msg));
+		buf[0] = 'Z';
+		iov.iov_base = buf;
+		iov.iov_len = 1;
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+		msg.msg_control = cmsg_buf;
+		msg.msg_controllen = sizeof(cmsg_buf);
+
+		cmsg = CMSG_FIRSTHDR(&msg);
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_RIGHTS;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+		memcpy(CMSG_DATA(cmsg), &received_fd, sizeof(int));
+
+		if (sendmsg(ipc_sockets[1], &msg, 0) < 0) {
+			close(received_fd);
+			close(ipc_sockets[1]);
+			exit(1);
+		}
+
+		close(received_fd);
+		close(ipc_sockets[1]);
+		exit(0);
+	}
+
+	/* Parent - receive the socket from the deepest level */
+	close(ipc_sockets[1]);
+
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	char buf[1];
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+
+	iov.iov_base = buf;
+	iov.iov_len = 1;
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	ssize_t n = recvmsg(ipc_sockets[0], &msg, 0);
+	close(ipc_sockets[0]);
+
+	if (n != 1) {
+		free(handle);
+		waitpid(pid_l1, NULL, 0);
+		SKIP(return, "Failed to receive socket from child");
+	}
+
+	struct cmsghdr *cmsg = CMSG_FIRSTHDR(&msg);
+	if (!cmsg) {
+		free(handle);
+		waitpid(pid_l1, NULL, 0);
+		SKIP(return, "Failed to receive socket from child");
+	}
+	memcpy(&sock_L3A_fd, CMSG_DATA(cmsg), sizeof(int));
+
+	/* Wait for L1 child */
+	waitpid(pid_l1, &status, 0);
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(WEXITSTATUS(status), 0);
+
+	/*
+	 * At this point, all child processes have exited. The socket itself
+	 * doesn't keep the namespace active - we need to call SIOCGSKNS which
+	 * will resurrect the entire namespace tree by taking active references.
+	 */
+
+	/* Get network namespace from socket - this resurrects the tree */
+	netns_L3A_fd = ioctl(sock_L3A_fd, SIOCGSKNS);
+	if (netns_L3A_fd < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "SIOCGSKNS not supported");
+		ASSERT_GE(netns_L3A_fd, 0);
+	}
+
+	/* Get namespace ID for net_L3A */
+	ret = ioctl(netns_L3A_fd, NS_GET_ID, &netns_L3A_id);
+	if (ret < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		close(netns_L3A_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_ID not supported");
+		ASSERT_EQ(ret, 0);
+	}
+
+	/* Get owner user namespace chain: userns_L3 -> userns_L2 -> userns_L1 */
+	int userns_L3_fd = ioctl(netns_L3A_fd, NS_GET_USERNS);
+	if (userns_L3_fd < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		close(netns_L3A_fd);
+		if (errno == ENOTTY || errno == EINVAL)
+			SKIP(return, "NS_GET_USERNS not supported");
+		ASSERT_GE(userns_L3_fd, 0);
+	}
+
+	ret = ioctl(userns_L3_fd, NS_GET_ID, &userns_L3_id);
+	ASSERT_EQ(ret, 0);
+
+	int userns_L2_fd = ioctl(userns_L3_fd, NS_GET_USERNS);
+	ASSERT_GE(userns_L2_fd, 0);
+	ret = ioctl(userns_L2_fd, NS_GET_ID, &userns_L2_id);
+	ASSERT_EQ(ret, 0);
+
+	int userns_L1_fd = ioctl(userns_L2_fd, NS_GET_USERNS);
+	ASSERT_GE(userns_L1_fd, 0);
+	ret = ioctl(userns_L1_fd, NS_GET_ID, &userns_L1_id);
+	ASSERT_EQ(ret, 0);
+
+	close(userns_L1_fd);
+	close(userns_L2_fd);
+	close(userns_L3_fd);
+
+	TH_LOG("Multi-level hierarchy: net_L3A (id=%llu) -> userns_L3 (id=%llu) -> userns_L2 (id=%llu) -> userns_L1 (id=%llu)",
+	       netns_L3A_id, userns_L3_id, userns_L2_id, userns_L1_id);
+
+	/*
+	 * Test 1: Verify net_L3A is visible in listns() after resurrection.
+	 * The entire ownership chain should be resurrected and visible.
+	 */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	if (ret < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		close(netns_L3A_fd);
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret, 0);
+	}
+
+	bool found_netns_L3A = false;
+	bool found_userns_L1 = false;
+	bool found_userns_L2 = false;
+	bool found_userns_L3 = false;
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_L3A_id)
+			found_netns_L3A = true;
+		if (ns_ids[i] == userns_L1_id)
+			found_userns_L1 = true;
+		if (ns_ids[i] == userns_L2_id)
+			found_userns_L2 = true;
+		if (ns_ids[i] == userns_L3_id)
+			found_userns_L3 = true;
+	}
+
+	ASSERT_TRUE(found_netns_L3A);
+	ASSERT_TRUE(found_userns_L1);
+	ASSERT_TRUE(found_userns_L2);
+	ASSERT_TRUE(found_userns_L3);
+	TH_LOG("Resurrection verified: all namespaces in hierarchy visible in listns()");
+
+	/*
+	 * Test 2: Verify net_L3A can be reopened via file handle.
+	 */
+	nsfs_fh = (struct nsfs_file_handle *)handle->f_handle;
+	nsfs_fh->ns_id = netns_L3A_id;
+	nsfs_fh->ns_type = 0;
+	nsfs_fh->ns_inum = 0;
+
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		close(netns_L3A_fd);
+		if (errno == EOPNOTSUPP || errno == ENOSYS || errno == EBADF)
+			SKIP(return, "open_by_handle_at with FD_NSFS_ROOT not supported");
+		TH_LOG("open_by_handle_at failed: %s", strerror(errno));
+		ASSERT_GE(reopened_fd, 0);
+	}
+
+	close(reopened_fd);
+	TH_LOG("File handle test passed: net_L3A can be reopened");
+
+	/*
+	 * Test 3: Verify that when we close the netns FD (dropping the last
+	 * active reference), the entire tree becomes inactive and disappears
+	 * from listns(). The cascade goes: net_L3A drops -> userns_L3 drops ->
+	 * userns_L2 drops -> userns_L1 drops.
+	 */
+	close(netns_L3A_fd);
+
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	found_netns_L3A = false;
+	found_userns_L1 = false;
+	found_userns_L2 = false;
+	found_userns_L3 = false;
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_L3A_id)
+			found_netns_L3A = true;
+		if (ns_ids[i] == userns_L1_id)
+			found_userns_L1 = true;
+		if (ns_ids[i] == userns_L2_id)
+			found_userns_L2 = true;
+		if (ns_ids[i] == userns_L3_id)
+			found_userns_L3 = true;
+	}
+
+	ASSERT_FALSE(found_netns_L3A);
+	ASSERT_FALSE(found_userns_L1);
+	ASSERT_FALSE(found_userns_L2);
+	ASSERT_FALSE(found_userns_L3);
+	TH_LOG("Cascade test passed: all namespaces disappeared after netns FD closed");
+
+	/*
+	 * Test 4: Verify file handle no longer works for inactive namespace.
+	 */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd >= 0) {
+		close(reopened_fd);
+		free(handle);
+		ASSERT_TRUE(false); /* Should have failed */
+	}
+	TH_LOG("Inactive namespace correctly cannot be reopened via file handle");
+
+	/*
+	 * Test 5: Verify that calling SIOCGSKNS again resurrects the tree again.
+	 * The socket is still valid, so we can call SIOCGSKNS on it to resurrect
+	 * the namespace tree once more.
+	 */
+	netns_L3A_fd = ioctl(sock_L3A_fd, SIOCGSKNS);
+	ASSERT_GE(netns_L3A_fd, 0);
+
+	TH_LOG("Called SIOCGSKNS again to resurrect the namespace tree");
+
+	/* Verify the namespace tree is resurrected and visible in listns() */
+	ret = sys_listns(&req, ns_ids, ARRAY_SIZE(ns_ids), 0);
+	ASSERT_GE(ret, 0);
+
+	found_netns_L3A = false;
+	found_userns_L1 = false;
+	found_userns_L2 = false;
+	found_userns_L3 = false;
+
+	for (i = 0; i < ret; i++) {
+		if (ns_ids[i] == netns_L3A_id)
+			found_netns_L3A = true;
+		if (ns_ids[i] == userns_L1_id)
+			found_userns_L1 = true;
+		if (ns_ids[i] == userns_L2_id)
+			found_userns_L2 = true;
+		if (ns_ids[i] == userns_L3_id)
+			found_userns_L3 = true;
+	}
+
+	ASSERT_TRUE(found_netns_L3A);
+	ASSERT_TRUE(found_userns_L1);
+	ASSERT_TRUE(found_userns_L2);
+	ASSERT_TRUE(found_userns_L3);
+	TH_LOG("Second resurrection verified: all namespaces in hierarchy visible in listns() again");
+
+	/* Verify we can reopen via file handle again */
+	reopened_fd = open_by_handle_at(FD_NSFS_ROOT, handle, O_RDONLY);
+	if (reopened_fd < 0) {
+		free(handle);
+		close(sock_L3A_fd);
+		close(netns_L3A_fd);
+		TH_LOG("open_by_handle_at failed after second resurrection: %s", strerror(errno));
+		ASSERT_GE(reopened_fd, 0);
+	}
+
+	close(reopened_fd);
+	TH_LOG("File handle test passed: net_L3A can be reopened after second resurrection");
+
+	/* Final cleanup */
+	close(sock_L3A_fd);
+	close(netns_L3A_fd);
+	free(handle);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/stress_test.c b/tools/testing/selftests/namespaces/stress_test.c
new file mode 100644
index 000000000000..dd7df7d6cb27
--- /dev/null
+++ b/tools/testing/selftests/namespaces/stress_test.c
@@ -0,0 +1,626 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/nsfs.h>
+#include "../kselftest_harness.h"
+#include "../filesystems/utils.h"
+#include "wrappers.h"
+
+/*
+ * Stress tests for namespace active reference counting.
+ *
+ * These tests validate that the active reference counting system can handle
+ * high load scenarios including rapid namespace creation/destruction, large
+ * numbers of concurrent namespaces, and various edge cases under stress.
+ */
+
+/*
+ * Test rapid creation and destruction of user namespaces.
+ * Create and destroy namespaces in quick succession to stress the
+ * active reference tracking and ensure no leaks occur.
+ */
+TEST(rapid_namespace_creation_destruction)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[256], ns_ids_after[256];
+	ssize_t ret_before, ret_after;
+	int i;
+
+	/* Get baseline count of active user namespaces */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active user namespaces", ret_before);
+
+	/* Rapidly create and destroy 100 user namespaces */
+	for (i = 0; i < 100; i++) {
+		pid_t pid = fork();
+		ASSERT_GE(pid, 0);
+
+		if (pid == 0) {
+			/* Child: create user namespace and immediately exit */
+			if (setup_userns() < 0)
+				exit(1);
+			exit(0);
+		}
+
+		/* Parent: wait for child */
+		int status;
+		waitpid(pid, &status, 0);
+		ASSERT_TRUE(WIFEXITED(status));
+		ASSERT_EQ(WEXITSTATUS(status), 0);
+	}
+
+	/* Verify we're back to baseline (no leaked namespaces) */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After 100 rapid create/destroy cycles: %zd active user namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+/*
+ * Test creating many concurrent namespaces.
+ * Verify that listns() correctly tracks all of them and that they all
+ * become inactive after processes exit.
+ */
+TEST(many_concurrent_namespaces)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[512], ns_ids_during[512], ns_ids_after[512];
+	ssize_t ret_before, ret_during, ret_after;
+	pid_t pids[50];
+	int num_children = 50;
+	int i;
+	int sv[2];
+
+	/* Get baseline */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active user namespaces", ret_before);
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	/* Create many children, each with their own user namespace */
+	for (i = 0; i < num_children; i++) {
+		pids[i] = fork();
+		ASSERT_GE(pids[i], 0);
+
+		if (pids[i] == 0) {
+			/* Child: create user namespace and wait for parent signal */
+			char c;
+
+			close(sv[0]);
+
+			if (setup_userns() < 0) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Signal parent we're ready */
+			if (write(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Wait for parent signal to exit */
+			if (read(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			close(sv[1]);
+			exit(0);
+		}
+	}
+
+	close(sv[1]);
+
+	/* Wait for all children to signal ready */
+	for (i = 0; i < num_children; i++) {
+		char c;
+		if (read(sv[0], &c, 1) != 1) {
+			/* If we fail to read, kill all children and exit */
+			close(sv[0]);
+			for (int j = 0; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	/* List namespaces while all children are running */
+	ret_during = sys_listns(&req, ns_ids_during, ARRAY_SIZE(ns_ids_during), 0);
+	ASSERT_GE(ret_during, 0);
+
+	TH_LOG("With %d children running: %zd active user namespaces", num_children, ret_during);
+
+	/* Should have at least num_children more namespaces than baseline */
+	ASSERT_GE(ret_during, ret_before + num_children);
+
+	/* Signal all children to exit */
+	for (i = 0; i < num_children; i++) {
+		char c = 'X';
+		if (write(sv[0], &c, 1) != 1) {
+			/* If we fail to write, kill remaining children */
+			close(sv[0]);
+			for (int j = i; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	close(sv[0]);
+
+	/* Wait for all children */
+	for (i = 0; i < num_children; i++) {
+		int status;
+		waitpid(pids[i], &status, 0);
+		ASSERT_TRUE(WIFEXITED(status));
+	}
+
+	/* Verify we're back to baseline */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After all children exit: %zd active user namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+/*
+ * Test rapid namespace creation with different namespace types.
+ * Create multiple types of namespaces rapidly to stress the tracking system.
+ */
+TEST(rapid_mixed_namespace_creation)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,  /* All types */
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[512], ns_ids_after[512];
+	ssize_t ret_before, ret_after;
+	int i;
+
+	/* Get baseline count */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active namespaces (all types)", ret_before);
+
+	/* Rapidly create and destroy namespaces with multiple types */
+	for (i = 0; i < 50; i++) {
+		pid_t pid = fork();
+		ASSERT_GE(pid, 0);
+
+		if (pid == 0) {
+			/* Child: create multiple namespace types */
+			if (setup_userns() < 0)
+				exit(1);
+
+			/* Create additional namespace types */
+			if (unshare(CLONE_NEWNET) < 0)
+				exit(1);
+			if (unshare(CLONE_NEWUTS) < 0)
+				exit(1);
+			if (unshare(CLONE_NEWIPC) < 0)
+				exit(1);
+
+			exit(0);
+		}
+
+		/* Parent: wait for child */
+		int status;
+		waitpid(pid, &status, 0);
+		ASSERT_TRUE(WIFEXITED(status));
+	}
+
+	/* Verify we're back to baseline */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After 50 rapid mixed namespace cycles: %zd active namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+/*
+ * Test nested namespace creation under stress.
+ * Create deeply nested namespace hierarchies and verify proper cleanup.
+ */
+TEST(nested_namespace_stress)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[512], ns_ids_after[512];
+	ssize_t ret_before, ret_after;
+	int i;
+
+	/* Get baseline */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active user namespaces", ret_before);
+
+	/* Create 20 processes, each with nested user namespaces */
+	for (i = 0; i < 20; i++) {
+		pid_t pid = fork();
+		ASSERT_GE(pid, 0);
+
+		if (pid == 0) {
+			int userns_fd;
+			uid_t orig_uid = getuid();
+			int depth;
+
+			/* Create nested user namespaces (up to 5 levels) */
+			for (depth = 0; depth < 5; depth++) {
+				userns_fd = get_userns_fd(0, (depth == 0) ? orig_uid : 0, 1);
+				if (userns_fd < 0)
+					exit(1);
+
+				if (setns(userns_fd, CLONE_NEWUSER) < 0) {
+					close(userns_fd);
+					exit(1);
+				}
+				close(userns_fd);
+			}
+
+			exit(0);
+		}
+
+		/* Parent: wait for child */
+		int status;
+		waitpid(pid, &status, 0);
+		ASSERT_TRUE(WIFEXITED(status));
+	}
+
+	/* Verify we're back to baseline */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After 20 nested namespace hierarchies: %zd active user namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+/*
+ * Test listns() pagination under stress.
+ * Create many namespaces and verify pagination works correctly.
+ */
+TEST(listns_pagination_stress)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	pid_t pids[30];
+	int num_children = 30;
+	int i;
+	int sv[2];
+	__u64 all_ns_ids[512];
+	int total_found = 0;
+
+	ASSERT_EQ(socketpair(AF_UNIX, SOCK_STREAM, 0, sv), 0);
+
+	/* Create many children with user namespaces */
+	for (i = 0; i < num_children; i++) {
+		pids[i] = fork();
+		ASSERT_GE(pids[i], 0);
+
+		if (pids[i] == 0) {
+			char c;
+			close(sv[0]);
+
+			if (setup_userns() < 0) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Signal parent we're ready */
+			if (write(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			/* Wait for parent signal to exit */
+			if (read(sv[1], &c, 1) != 1) {
+				close(sv[1]);
+				exit(1);
+			}
+
+			close(sv[1]);
+			exit(0);
+		}
+	}
+
+	close(sv[1]);
+
+	/* Wait for all children to signal ready */
+	for (i = 0; i < num_children; i++) {
+		char c;
+		if (read(sv[0], &c, 1) != 1) {
+			/* If we fail to read, kill all children and exit */
+			close(sv[0]);
+			for (int j = 0; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	/* Paginate through all namespaces using small batch sizes */
+	req.ns_id = 0;
+	while (1) {
+		__u64 batch[5];  /* Small batch size to force pagination */
+		ssize_t ret;
+
+		ret = sys_listns(&req, batch, ARRAY_SIZE(batch), 0);
+		if (ret < 0) {
+			if (errno == ENOSYS) {
+				close(sv[0]);
+				for (i = 0; i < num_children; i++)
+					kill(pids[i], SIGKILL);
+				for (i = 0; i < num_children; i++)
+					waitpid(pids[i], NULL, 0);
+				SKIP(return, "listns() not supported");
+			}
+			ASSERT_GE(ret, 0);
+		}
+
+		if (ret == 0)
+			break;
+
+		/* Store results */
+		for (i = 0; i < ret && total_found < 512; i++) {
+			all_ns_ids[total_found++] = batch[i];
+		}
+
+		/* Update cursor for next batch */
+		if (ret == ARRAY_SIZE(batch))
+			req.ns_id = batch[ret - 1];
+		else
+			break;
+	}
+
+	TH_LOG("Paginated through %d user namespaces", total_found);
+
+	/* Verify no duplicates in pagination */
+	for (i = 0; i < total_found; i++) {
+		for (int j = i + 1; j < total_found; j++) {
+			if (all_ns_ids[i] == all_ns_ids[j]) {
+				TH_LOG("Found duplicate ns_id: %llu at positions %d and %d",
+				       (unsigned long long)all_ns_ids[i], i, j);
+				ASSERT_TRUE(false);
+			}
+		}
+	}
+
+	/* Signal all children to exit */
+	for (i = 0; i < num_children; i++) {
+		char c = 'X';
+		if (write(sv[0], &c, 1) != 1) {
+			close(sv[0]);
+			for (int j = i; j < num_children; j++)
+				kill(pids[j], SIGKILL);
+			for (int j = 0; j < num_children; j++)
+				waitpid(pids[j], NULL, 0);
+			ASSERT_TRUE(false);
+		}
+	}
+
+	close(sv[0]);
+
+	/* Wait for all children */
+	for (i = 0; i < num_children; i++) {
+		int status;
+		waitpid(pids[i], &status, 0);
+	}
+}
+
+/*
+ * Test concurrent namespace operations.
+ * Multiple processes creating, querying, and destroying namespaces concurrently.
+ */
+TEST(concurrent_namespace_operations)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = 0,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[512], ns_ids_after[512];
+	ssize_t ret_before, ret_after;
+	pid_t pids[20];
+	int num_workers = 20;
+	int i;
+
+	/* Get baseline */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active namespaces", ret_before);
+
+	/* Create worker processes that do concurrent operations */
+	for (i = 0; i < num_workers; i++) {
+		pids[i] = fork();
+		ASSERT_GE(pids[i], 0);
+
+		if (pids[i] == 0) {
+			/* Each worker: create namespaces, list them, repeat */
+			int iterations;
+
+			for (iterations = 0; iterations < 10; iterations++) {
+				int userns_fd;
+				__u64 temp_ns_ids[100];
+				ssize_t ret;
+
+				/* Create a user namespace */
+				userns_fd = get_userns_fd(0, getuid(), 1);
+				if (userns_fd < 0)
+					continue;
+
+				/* List namespaces */
+				ret = sys_listns(&req, temp_ns_ids, ARRAY_SIZE(temp_ns_ids), 0);
+				(void)ret;
+
+				close(userns_fd);
+
+				/* Small delay */
+				usleep(1000);
+			}
+
+			exit(0);
+		}
+	}
+
+	/* Wait for all workers */
+	for (i = 0; i < num_workers; i++) {
+		int status;
+		waitpid(pids[i], &status, 0);
+		ASSERT_TRUE(WIFEXITED(status));
+		ASSERT_EQ(WEXITSTATUS(status), 0);
+	}
+
+	/* Verify we're back to baseline */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After concurrent operations: %zd active namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+/*
+ * Test namespace churn - continuous creation and destruction.
+ * Simulates high-churn scenarios like container orchestration.
+ */
+TEST(namespace_churn)
+{
+	struct ns_id_req req = {
+		.size = sizeof(req),
+		.spare = 0,
+		.ns_id = 0,
+		.ns_type = CLONE_NEWUSER | CLONE_NEWNET | CLONE_NEWUTS,
+		.spare2 = 0,
+		.user_ns_id = 0,
+	};
+	__u64 ns_ids_before[512], ns_ids_after[512];
+	ssize_t ret_before, ret_after;
+	int cycle;
+
+	/* Get baseline */
+	ret_before = sys_listns(&req, ns_ids_before, ARRAY_SIZE(ns_ids_before), 0);
+	if (ret_before < 0) {
+		if (errno == ENOSYS)
+			SKIP(return, "listns() not supported");
+		ASSERT_GE(ret_before, 0);
+	}
+
+	TH_LOG("Baseline: %zd active namespaces", ret_before);
+
+	/* Simulate churn: batches of namespaces created and destroyed */
+	for (cycle = 0; cycle < 10; cycle++) {
+		pid_t batch_pids[10];
+		int i;
+
+		/* Create batch */
+		for (i = 0; i < 10; i++) {
+			batch_pids[i] = fork();
+			ASSERT_GE(batch_pids[i], 0);
+
+			if (batch_pids[i] == 0) {
+				/* Create multiple namespace types */
+				if (setup_userns() < 0)
+					exit(1);
+				if (unshare(CLONE_NEWNET) < 0)
+					exit(1);
+				if (unshare(CLONE_NEWUTS) < 0)
+					exit(1);
+
+				/* Keep namespaces alive briefly */
+				usleep(10000);
+				exit(0);
+			}
+		}
+
+		/* Wait for batch to complete */
+		for (i = 0; i < 10; i++) {
+			int status;
+			waitpid(batch_pids[i], &status, 0);
+		}
+	}
+
+	/* Verify we're back to baseline */
+	ret_after = sys_listns(&req, ns_ids_after, ARRAY_SIZE(ns_ids_after), 0);
+	ASSERT_GE(ret_after, 0);
+
+	TH_LOG("After 10 churn cycles (100 namespace sets): %zd active namespaces", ret_after);
+	ASSERT_EQ(ret_before, ret_after);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/namespaces/wrappers.h b/tools/testing/selftests/namespaces/wrappers.h
new file mode 100644
index 000000000000..9741a64a5b1d
--- /dev/null
+++ b/tools/testing/selftests/namespaces/wrappers.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/nsfs.h>
+#include <linux/types.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#ifndef __SELFTESTS_NAMESPACES_WRAPPERS_H__
+#define __SELFTESTS_NAMESPACES_WRAPPERS_H__
+
+#ifndef __NR_listns
+	#if defined __alpha__
+		#define __NR_listns 580
+	#elif defined _MIPS_SIM
+		#if _MIPS_SIM == _MIPS_SIM_ABI32	/* o32 */
+			#define __NR_listns 4470
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_NABI32	/* n32 */
+			#define __NR_listns 6470
+		#endif
+		#if _MIPS_SIM == _MIPS_SIM_ABI64	/* n64 */
+			#define __NR_listns 5470
+		#endif
+	#else
+		#define __NR_listns 470
+	#endif
+#endif
+
+static inline int sys_listns(const struct ns_id_req *req, __u64 *ns_ids,
+			     size_t nr_ns_ids, unsigned int flags)
+{
+	return syscall(__NR_listns, req, ns_ids, nr_ns_ids, flags);
+}
+
+#endif /* __SELFTESTS_NAMESPACES_WRAPPERS_H__ */
diff --git a/tools/testing/selftests/nci/.gitignore b/tools/testing/selftests/nci/.gitignore
new file mode 100644
index 000000000000..448eeb4590fc
--- /dev/null
+++ b/tools/testing/selftests/nci/.gitignore
@@ -0,0 +1 @@
+/nci_dev
diff --git a/tools/testing/selftests/nci/Makefile b/tools/testing/selftests/nci/Makefile
new file mode 100644
index 000000000000..47669a1d6a59
--- /dev/null
+++ b/tools/testing/selftests/nci/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wl,-no-as-needed -Wall
+LDFLAGS += -lpthread
+
+TEST_GEN_PROGS := nci_dev
+include ../lib.mk
diff --git a/tools/testing/selftests/nci/config b/tools/testing/selftests/nci/config
new file mode 100644
index 000000000000..b084e78276be
--- /dev/null
+++ b/tools/testing/selftests/nci/config
@@ -0,0 +1,3 @@
+CONFIG_NFC=y
+CONFIG_NFC_NCI=y
+CONFIG_NFC_VIRTUAL_NCI=y
diff --git a/tools/testing/selftests/nci/nci_dev.c b/tools/testing/selftests/nci/nci_dev.c
new file mode 100644
index 000000000000..312f84ee0444
--- /dev/null
+++ b/tools/testing/selftests/nci/nci_dev.c
@@ -0,0 +1,904 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2021 Samsung Electronics
+ * Bongsu Jeon <bongsu.jeon@samsung.com>
+ *
+ * Test code for nci
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <linux/genetlink.h>
+#include <sys/socket.h>
+#include <linux/nfc.h>
+
+#include "kselftest_harness.h"
+
+#define GENLMSG_DATA(glh)	((void *)(NLMSG_DATA(glh) + GENL_HDRLEN))
+#define GENLMSG_PAYLOAD(glh)	(NLMSG_PAYLOAD(glh, 0) - GENL_HDRLEN)
+#define NLA_DATA(na)		((void *)((char *)(na) + NLA_HDRLEN))
+#define NLA_PAYLOAD(len)	((len) - NLA_HDRLEN)
+
+#define MAX_MSG_SIZE	1024
+
+#define IOCTL_GET_NCIDEV_IDX	0
+#define VIRTUAL_NFC_PROTOCOLS	(NFC_PROTO_JEWEL_MASK | \
+				 NFC_PROTO_MIFARE_MASK | \
+				 NFC_PROTO_FELICA_MASK | \
+				 NFC_PROTO_ISO14443_MASK | \
+				 NFC_PROTO_ISO14443_B_MASK | \
+				 NFC_PROTO_ISO15693_MASK)
+
+const __u8 nci_reset_cmd[] = {0x20, 0x00, 0x01, 0x01};
+const __u8 nci_init_cmd[] = {0x20, 0x01, 0x00};
+const __u8 nci_rf_discovery_cmd[] = {0x21, 0x03, 0x09, 0x04, 0x00, 0x01,
+				      0x01, 0x01, 0x02, 0x01, 0x06, 0x01};
+const __u8 nci_init_cmd_v2[] = {0x20, 0x01, 0x02, 0x00, 0x00};
+const __u8 nci_rf_disc_map_cmd[] = {0x21, 0x00, 0x07, 0x02, 0x04, 0x03,
+				     0x02, 0x05, 0x03, 0x03};
+const __u8 nci_rf_deact_cmd[] = {0x21, 0x06, 0x01, 0x00};
+const __u8 nci_reset_rsp[] = {0x40, 0x00, 0x03, 0x00, 0x10, 0x01};
+const __u8 nci_reset_rsp_v2[] = {0x40, 0x00, 0x01, 0x00};
+const __u8 nci_reset_ntf[] = {0x60, 0x00, 0x09, 0x02, 0x01, 0x20, 0x0e,
+			       0x04, 0x61, 0x00, 0x04, 0x02};
+const __u8 nci_init_rsp[] = {0x40, 0x01, 0x14, 0x00, 0x02, 0x0e, 0x02,
+			      0x00, 0x03, 0x01, 0x02, 0x03, 0x02, 0xc8,
+			      0x00, 0xff, 0x10, 0x00, 0x0e, 0x12, 0x00,
+			      0x00, 0x04};
+const __u8 nci_init_rsp_v2[] = {0x40, 0x01, 0x1c, 0x00, 0x1a, 0x7e, 0x06,
+				 0x00, 0x02, 0x92, 0x04, 0xff, 0xff, 0x01,
+				 0x00, 0x40, 0x06, 0x00, 0x00, 0x01, 0x01,
+				 0x00, 0x02, 0x00, 0x03, 0x01, 0x01, 0x06,
+				 0x00, 0x80, 0x00};
+const __u8 nci_rf_disc_map_rsp[] = {0x41, 0x00, 0x01, 0x00};
+const __u8 nci_rf_disc_rsp[] = {0x41, 0x03, 0x01, 0x00};
+const __u8 nci_rf_deact_rsp[] = {0x41, 0x06, 0x01, 0x00};
+const __u8 nci_rf_deact_ntf[] = {0x61, 0x06, 0x02, 0x00, 0x00};
+const __u8 nci_rf_activate_ntf[] = {0x61, 0x05, 0x1D, 0x01, 0x02, 0x04, 0x00,
+				     0xFF, 0xFF, 0x0C, 0x44, 0x03, 0x07, 0x04,
+				     0x62, 0x26, 0x11, 0x80, 0x1D, 0x80, 0x01,
+				     0x20, 0x00, 0x00, 0x00, 0x06, 0x05, 0x75,
+				     0x77, 0x81, 0x02, 0x80};
+const __u8 nci_t4t_select_cmd[] = {0x00, 0x00, 0x0C, 0x00, 0xA4, 0x04, 0x00,
+				    0x07, 0xD2, 0x76, 0x00, 0x00, 0x85, 0x01, 0x01};
+const __u8 nci_t4t_select_cmd2[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02,
+				     0xE1, 0x03};
+const __u8 nci_t4t_select_cmd3[] = {0x00, 0x00, 0x07, 0x00, 0xA4, 0x00, 0x0C, 0x02,
+				     0xE1, 0x04};
+const __u8 nci_t4t_read_cmd[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x0F};
+const __u8 nci_t4t_read_rsp[] = {0x00, 0x00, 0x11, 0x00, 0x0F, 0x20, 0x00, 0x3B,
+				  0x00, 0x34, 0x04, 0x06, 0xE1, 0x04, 0x08, 0x00,
+				  0x00, 0x00, 0x90, 0x00};
+const __u8 nci_t4t_read_cmd2[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x00, 0x02};
+const __u8 nci_t4t_read_rsp2[] = {0x00, 0x00, 0x04, 0x00, 0x0F, 0x90, 0x00};
+const __u8 nci_t4t_read_cmd3[] = {0x00, 0x00, 0x05, 0x00, 0xB0, 0x00, 0x02, 0x0F};
+const __u8 nci_t4t_read_rsp3[] = {0x00, 0x00, 0x11, 0xD1, 0x01, 0x0B, 0x54, 0x02,
+				   0x65, 0x6E, 0x4E, 0x46, 0x43, 0x20, 0x54, 0x45,
+				   0x53, 0x54, 0x90, 0x00};
+const __u8 nci_t4t_rsp_ok[] = {0x00, 0x00, 0x02, 0x90, 0x00};
+
+struct msgtemplate {
+	struct nlmsghdr n;
+	struct genlmsghdr g;
+	char buf[MAX_MSG_SIZE];
+};
+
+static int create_nl_socket(void)
+{
+	int fd;
+	struct sockaddr_nl local;
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	if (fd < 0)
+		return -1;
+
+	memset(&local, 0, sizeof(local));
+	local.nl_family = AF_NETLINK;
+
+	if (bind(fd, (struct sockaddr *)&local, sizeof(local)) < 0)
+		goto error;
+
+	return fd;
+error:
+	close(fd);
+	return -1;
+}
+
+static int send_cmd_mt_nla(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
+			   __u8 genl_cmd, int nla_num, __u16 nla_type[],
+			   void *nla_data[], int nla_len[], __u16 flags)
+{
+	struct sockaddr_nl nladdr;
+	struct msgtemplate msg;
+	struct nlattr *na;
+	int cnt, prv_len;
+	int r, buflen;
+	char *buf;
+
+	msg.n.nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
+	msg.n.nlmsg_type = nlmsg_type;
+	msg.n.nlmsg_flags = flags;
+	msg.n.nlmsg_seq = 0;
+	msg.n.nlmsg_pid = nlmsg_pid;
+	msg.g.cmd = genl_cmd;
+	msg.g.version = 0x1;
+
+	prv_len = 0;
+	for (cnt = 0; cnt < nla_num; cnt++) {
+		na = (struct nlattr *)(GENLMSG_DATA(&msg) + prv_len);
+		na->nla_type = nla_type[cnt];
+		na->nla_len = nla_len[cnt] + NLA_HDRLEN;
+
+		if (nla_len[cnt] > 0)
+			memcpy(NLA_DATA(na), nla_data[cnt], nla_len[cnt]);
+
+		prv_len = NLA_ALIGN(nla_len[cnt]) + NLA_HDRLEN;
+		msg.n.nlmsg_len += prv_len;
+	}
+
+	buf = (char *)&msg;
+	buflen = msg.n.nlmsg_len;
+	memset(&nladdr, 0, sizeof(nladdr));
+	nladdr.nl_family = AF_NETLINK;
+
+	while ((r = sendto(sd, buf, buflen, 0, (struct sockaddr *)&nladdr,
+			   sizeof(nladdr))) < buflen) {
+		if (r > 0) {
+			buf += r;
+			buflen -= r;
+		} else if (errno != EAGAIN) {
+			return -1;
+		}
+	}
+	return 0;
+}
+
+static int send_get_nfc_family(int sd, __u32 pid)
+{
+	__u16 nla_get_family_type = CTRL_ATTR_FAMILY_NAME;
+	void *nla_get_family_data;
+	int nla_get_family_len;
+	char family_name[100];
+
+	nla_get_family_len = strlen(NFC_GENL_NAME) + 1;
+	strcpy(family_name, NFC_GENL_NAME);
+	nla_get_family_data = family_name;
+
+	return send_cmd_mt_nla(sd, GENL_ID_CTRL, pid, CTRL_CMD_GETFAMILY,
+				1, &nla_get_family_type, &nla_get_family_data,
+				&nla_get_family_len, NLM_F_REQUEST);
+}
+
+static int get_family_id(int sd, __u32 pid, __u32 *event_group)
+{
+	struct {
+		struct nlmsghdr n;
+		struct genlmsghdr g;
+		char buf[512];
+	} ans;
+	struct nlattr *na;
+	int resp_len;
+	__u16 id;
+	int len;
+	int rc;
+
+	rc = send_get_nfc_family(sd, pid);
+
+	if (rc < 0)
+		return 0;
+
+	resp_len = recv(sd, &ans, sizeof(ans), 0);
+
+	if (ans.n.nlmsg_type == NLMSG_ERROR || resp_len < 0 ||
+	    !NLMSG_OK(&ans.n, resp_len))
+		return 0;
+
+	len = 0;
+	resp_len = GENLMSG_PAYLOAD(&ans.n);
+	na = (struct nlattr *)GENLMSG_DATA(&ans);
+
+	while (len < resp_len) {
+		len += NLA_ALIGN(na->nla_len);
+		if (na->nla_type == CTRL_ATTR_FAMILY_ID) {
+			id = *(__u16 *)NLA_DATA(na);
+		} else if (na->nla_type == CTRL_ATTR_MCAST_GROUPS) {
+			struct nlattr *nested_na;
+			struct nlattr *group_na;
+			int group_attr_len;
+			int group_attr;
+
+			nested_na = (struct nlattr *)((char *)na + NLA_HDRLEN);
+			group_na = (struct nlattr *)((char *)nested_na + NLA_HDRLEN);
+			group_attr_len = 0;
+
+			for (group_attr = CTRL_ATTR_MCAST_GRP_UNSPEC;
+				group_attr < CTRL_ATTR_MCAST_GRP_MAX; group_attr++) {
+				if (group_na->nla_type == CTRL_ATTR_MCAST_GRP_ID) {
+					*event_group = *(__u32 *)((char *)group_na +
+								  NLA_HDRLEN);
+					break;
+				}
+
+				group_attr_len += NLA_ALIGN(group_na->nla_len) +
+						  NLA_HDRLEN;
+				if (group_attr_len >= nested_na->nla_len)
+					break;
+
+				group_na = (struct nlattr *)((char *)group_na +
+							     NLA_ALIGN(group_na->nla_len));
+			}
+		}
+		na = (struct nlattr *)(GENLMSG_DATA(&ans) + len);
+	}
+	return id;
+}
+
+static int send_cmd_with_idx(int sd, __u16 nlmsg_type, __u32 nlmsg_pid,
+			     __u8 genl_cmd, int dev_id)
+{
+	__u16 nla_type = NFC_ATTR_DEVICE_INDEX;
+	void *nla_data = &dev_id;
+	int nla_len = 4;
+
+	return send_cmd_mt_nla(sd, nlmsg_type, nlmsg_pid, genl_cmd, 1,
+				&nla_type, &nla_data, &nla_len, NLM_F_REQUEST);
+}
+
+static int get_nci_devid(int sd, __u16 fid, __u32 pid, int dev_id, struct msgtemplate *msg)
+{
+	int rc, resp_len;
+
+	rc = send_cmd_with_idx(sd, fid, pid, NFC_CMD_GET_DEVICE, dev_id);
+	if (rc < 0) {
+		rc = -1;
+		goto error;
+	}
+
+	resp_len = recv(sd, msg, sizeof(*msg), 0);
+	if (resp_len < 0) {
+		rc = -2;
+		goto error;
+	}
+
+	if (msg->n.nlmsg_type == NLMSG_ERROR ||
+	    !NLMSG_OK(&msg->n, resp_len)) {
+		rc = -3;
+		goto error;
+	}
+
+	return 0;
+error:
+	return rc;
+}
+
+static __u8 get_dev_enable_state(struct msgtemplate *msg)
+{
+	struct nlattr *na;
+	int resp_len;
+	int len;
+
+	resp_len = GENLMSG_PAYLOAD(&msg->n);
+	na = (struct nlattr *)GENLMSG_DATA(msg);
+	len = 0;
+
+	while (len < resp_len) {
+		len += NLA_ALIGN(na->nla_len);
+		if (na->nla_type == NFC_ATTR_DEVICE_POWERED)
+			return *(char *)NLA_DATA(na);
+		na = (struct nlattr *)(GENLMSG_DATA(msg) + len);
+	}
+
+	return resp_len;
+}
+
+FIXTURE(NCI) {
+	int virtual_nci_fd;
+	bool open_state;
+	int dev_idex;
+	bool isNCI2;
+	int proto;
+	__u32 pid;
+	__u16 fid;
+	int sd;
+};
+
+FIXTURE_VARIANT(NCI) {
+	bool isNCI2;
+};
+
+FIXTURE_VARIANT_ADD(NCI, NCI1_0) {
+	.isNCI2 = false,
+};
+
+FIXTURE_VARIANT_ADD(NCI, NCI2_0) {
+	.isNCI2 = true,
+};
+
+static void *virtual_dev_open(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp));
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_init_cmd))
+		goto error;
+	if (memcmp(nci_init_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_init_rsp, sizeof(nci_init_rsp));
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_disc_map_cmd))
+		goto error;
+	if (memcmp(nci_rf_disc_map_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_dev_open_v2(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2));
+	write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf));
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_init_cmd_v2))
+		goto error;
+	if (memcmp(nci_init_cmd_v2, buf, len))
+		goto error;
+	write(dev_fd, nci_init_rsp_v2, sizeof(nci_init_rsp_v2));
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_disc_map_cmd))
+		goto error;
+	if (memcmp(nci_rf_disc_map_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_map_rsp, sizeof(nci_rf_disc_map_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+FIXTURE_SETUP(NCI)
+{
+	struct msgtemplate msg;
+	pthread_t thread_t;
+	__u32 event_group;
+	int status;
+	int rc;
+
+	self->open_state = false;
+	self->proto = VIRTUAL_NFC_PROTOCOLS;
+	self->isNCI2 = variant->isNCI2;
+
+	self->sd = create_nl_socket();
+	ASSERT_NE(self->sd, -1);
+
+	self->pid = getpid();
+	self->fid = get_family_id(self->sd, self->pid, &event_group);
+	ASSERT_NE(self->fid, -1);
+
+	self->virtual_nci_fd = open("/dev/virtual_nci", O_RDWR);
+	ASSERT_GT(self->virtual_nci_fd, -1);
+
+	rc = setsockopt(self->sd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP, &event_group,
+			sizeof(event_group));
+	ASSERT_NE(rc, -1);
+
+	rc = ioctl(self->virtual_nci_fd, IOCTL_GET_NCIDEV_IDX, &self->dev_idex);
+	ASSERT_EQ(rc, 0);
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex, &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 0);
+
+	if (self->isNCI2)
+		rc = pthread_create(&thread_t, NULL, virtual_dev_open_v2,
+				    (void *)&self->virtual_nci_fd);
+	else
+		rc = pthread_create(&thread_t, NULL, virtual_dev_open,
+				    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_DEV_UP, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	ASSERT_EQ(status, 0);
+	self->open_state = true;
+}
+
+static void *virtual_deinit(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp, sizeof(nci_reset_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_deinit_v2(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_reset_cmd))
+		goto error;
+	if (memcmp(nci_reset_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_reset_rsp_v2, sizeof(nci_reset_rsp_v2));
+	write(dev_fd, nci_reset_ntf, sizeof(nci_reset_ntf));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+FIXTURE_TEARDOWN(NCI)
+{
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	if (self->open_state) {
+		if (self->isNCI2)
+			rc = pthread_create(&thread_t, NULL,
+					    virtual_deinit_v2,
+					    (void *)&self->virtual_nci_fd);
+		else
+			rc = pthread_create(&thread_t, NULL, virtual_deinit,
+					    (void *)&self->virtual_nci_fd);
+
+		ASSERT_GT(rc, -1);
+		rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+				       NFC_CMD_DEV_DOWN, self->dev_idex);
+		EXPECT_EQ(rc, 0);
+
+		pthread_join(thread_t, (void **)&status);
+		ASSERT_EQ(status, 0);
+	}
+
+	close(self->sd);
+	close(self->virtual_nci_fd);
+	self->open_state = false;
+}
+
+TEST_F(NCI, init)
+{
+	struct msgtemplate msg;
+	int rc;
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 1);
+}
+
+static void *virtual_poll_start(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_discovery_cmd))
+		goto error;
+	if (memcmp(nci_rf_discovery_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_disc_rsp, sizeof(nci_rf_disc_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+static void *virtual_poll_stop(void *data)
+{
+	char buf[258];
+	int dev_fd;
+	int len;
+
+	dev_fd = *(int *)data;
+
+	len = read(dev_fd, buf, 258);
+	if (len <= 0)
+		goto error;
+	if (len != sizeof(nci_rf_deact_cmd))
+		goto error;
+	if (memcmp(nci_rf_deact_cmd, buf, len))
+		goto error;
+	write(dev_fd, nci_rf_deact_rsp, sizeof(nci_rf_deact_rsp));
+
+	return (void *)0;
+error:
+	return (void *)-1;
+}
+
+int start_polling(int dev_idx, int proto, int virtual_fd, int sd, int fid, int pid)
+{
+	__u16 nla_start_poll_type[2] = {NFC_ATTR_DEVICE_INDEX,
+					 NFC_ATTR_PROTOCOLS};
+	void *nla_start_poll_data[2] = {&dev_idx, &proto};
+	int nla_start_poll_len[2] = {4, 4};
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	rc = pthread_create(&thread_t, NULL, virtual_poll_start,
+			    (void *)&virtual_fd);
+	if (rc < 0)
+		return rc;
+
+	rc = send_cmd_mt_nla(sd, fid, pid, NFC_CMD_START_POLL, 2, nla_start_poll_type,
+			     nla_start_poll_data, nla_start_poll_len, NLM_F_REQUEST);
+	if (rc != 0)
+		return rc;
+
+	pthread_join(thread_t, (void **)&status);
+	return status;
+}
+
+int stop_polling(int dev_idx, int virtual_fd, int sd, int fid, int pid)
+{
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	rc = pthread_create(&thread_t, NULL, virtual_poll_stop,
+			    (void *)&virtual_fd);
+	if (rc < 0)
+		return rc;
+
+	rc = send_cmd_with_idx(sd, fid, pid,
+			       NFC_CMD_STOP_POLL, dev_idx);
+	if (rc != 0)
+		return rc;
+
+	pthread_join(thread_t, (void **)&status);
+	return status;
+}
+
+TEST_F(NCI, start_poll)
+{
+	int status;
+
+	status = start_polling(self->dev_idex, self->proto, self->virtual_nci_fd,
+			       self->sd, self->fid, self->pid);
+	EXPECT_EQ(status, 0);
+
+	status = stop_polling(self->dev_idex, self->virtual_nci_fd, self->sd,
+			      self->fid, self->pid);
+	EXPECT_EQ(status, 0);
+}
+
+int get_taginfo(int dev_idx, int sd, int fid, int pid)
+{
+	struct {
+		struct nlmsghdr n;
+		struct genlmsghdr g;
+		char buf[512];
+	} ans;
+
+	struct nlattr *na;
+	__u32 protocol;
+	int targetidx;
+	__u8 sel_res;
+	int resp_len;
+	int len;
+
+	__u16 tagid_type;
+	void *tagid_type_data;
+	int tagid_len;
+
+	tagid_type = NFC_ATTR_DEVICE_INDEX;
+	tagid_type_data = &dev_idx;
+	tagid_len = 4;
+
+	send_cmd_mt_nla(sd, fid, pid, NFC_CMD_GET_TARGET, 1, &tagid_type,
+			&tagid_type_data, &tagid_len, NLM_F_REQUEST | NLM_F_DUMP);
+	resp_len = recv(sd, &ans, sizeof(ans), 0);
+	if (ans.n.nlmsg_type == NLMSG_ERROR || resp_len < 0 ||
+	    !NLMSG_OK(&ans.n, resp_len))
+		return -1;
+
+	resp_len = GENLMSG_PAYLOAD(&ans.n);
+	na = (struct nlattr *)GENLMSG_DATA(&ans);
+
+	len = 0;
+	targetidx = -1;
+	protocol = -1;
+	sel_res = -1;
+
+	while (len < resp_len) {
+		len += NLA_ALIGN(na->nla_len);
+
+		if (na->nla_type == NFC_ATTR_TARGET_INDEX)
+			targetidx = *(int *)((char *)na + NLA_HDRLEN);
+		else if (na->nla_type == NFC_ATTR_TARGET_SEL_RES)
+			sel_res = *(__u8 *)((char *)na + NLA_HDRLEN);
+		else if (na->nla_type == NFC_ATTR_PROTOCOLS)
+			protocol = *(__u32 *)((char *)na + NLA_HDRLEN);
+
+		na = (struct nlattr *)(GENLMSG_DATA(&ans) + len);
+	}
+
+	if (targetidx == -1 || sel_res != 0x20 || protocol != NFC_PROTO_ISO14443_MASK)
+		return -1;
+
+	return targetidx;
+}
+
+int connect_socket(int dev_idx, int target_idx)
+{
+	struct sockaddr_nfc addr;
+	int sock;
+	int err = 0;
+
+	sock = socket(AF_NFC, SOCK_SEQPACKET, NFC_SOCKPROTO_RAW);
+	if (sock == -1)
+		return -1;
+
+	addr.sa_family = AF_NFC;
+	addr.dev_idx = dev_idx;
+	addr.target_idx = target_idx;
+	addr.nfc_protocol = NFC_PROTO_ISO14443;
+
+	err = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
+	if (err) {
+		close(sock);
+		return -1;
+	}
+
+	return sock;
+}
+
+int connect_tag(int dev_idx, int virtual_fd, int sd, int fid, int pid)
+{
+	struct genlmsghdr *genlhdr;
+	struct nlattr *na;
+	char evt_data[255];
+	int target_idx;
+	int resp_len;
+	int evt_dev;
+
+	write(virtual_fd, nci_rf_activate_ntf, sizeof(nci_rf_activate_ntf));
+	resp_len = recv(sd, evt_data, sizeof(evt_data), 0);
+	if (resp_len < 0)
+		return -1;
+
+	genlhdr = (struct genlmsghdr *)((struct nlmsghdr *)evt_data + 1);
+	na = (struct nlattr *)(genlhdr + 1);
+	evt_dev = *(int *)((char *)na + NLA_HDRLEN);
+	if (dev_idx != evt_dev)
+		return -1;
+
+	target_idx = get_taginfo(dev_idx, sd, fid, pid);
+	if (target_idx == -1)
+		return -1;
+	return connect_socket(dev_idx, target_idx);
+}
+
+int read_write_nci_cmd(int nfc_sock, int virtual_fd, const __u8 *cmd, __u32 cmd_len,
+		       const __u8 *rsp, __u32 rsp_len)
+{
+	char buf[256];
+	int len;
+
+	send(nfc_sock, &cmd[3], cmd_len - 3, 0);
+	len = read(virtual_fd, buf, cmd_len);
+	if (len < 0 || memcmp(buf, cmd, cmd_len))
+		return -1;
+
+	write(virtual_fd, rsp, rsp_len);
+	len = recv(nfc_sock, buf, rsp_len - 2, 0);
+	if (len < 0 || memcmp(&buf[1], &rsp[3], rsp_len - 3))
+		return -1;
+
+	return 0;
+}
+
+int read_tag(int nfc_sock, int virtual_fd)
+{
+	if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd,
+			       sizeof(nci_t4t_select_cmd), nci_t4t_rsp_ok,
+			       sizeof(nci_t4t_rsp_ok)))
+		return -1;
+
+	if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd2,
+			       sizeof(nci_t4t_select_cmd2), nci_t4t_rsp_ok,
+			       sizeof(nci_t4t_rsp_ok)))
+		return -1;
+
+	if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd,
+			       sizeof(nci_t4t_read_cmd), nci_t4t_read_rsp,
+			       sizeof(nci_t4t_read_rsp)))
+		return -1;
+
+	if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_select_cmd3,
+			       sizeof(nci_t4t_select_cmd3), nci_t4t_rsp_ok,
+			       sizeof(nci_t4t_rsp_ok)))
+		return -1;
+
+	if (read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd2,
+			       sizeof(nci_t4t_read_cmd2), nci_t4t_read_rsp2,
+			       sizeof(nci_t4t_read_rsp2)))
+		return -1;
+
+	return read_write_nci_cmd(nfc_sock, virtual_fd, nci_t4t_read_cmd3,
+				  sizeof(nci_t4t_read_cmd3), nci_t4t_read_rsp3,
+				  sizeof(nci_t4t_read_rsp3));
+}
+
+static void *virtual_deactivate_proc(void *data)
+{
+	int virtual_fd;
+	char buf[256];
+	int deactcmd_len;
+	int len;
+
+	virtual_fd = *(int *)data;
+	deactcmd_len = sizeof(nci_rf_deact_cmd);
+	len = read(virtual_fd, buf, deactcmd_len);
+	if (len != deactcmd_len || memcmp(buf, nci_rf_deact_cmd, deactcmd_len))
+		return (void *)-1;
+
+	write(virtual_fd, nci_rf_deact_rsp, sizeof(nci_rf_deact_rsp));
+	write(virtual_fd, nci_rf_deact_ntf, sizeof(nci_rf_deact_ntf));
+
+	return (void *)0;
+}
+
+int disconnect_tag(int nfc_sock, int virtual_fd)
+{
+	pthread_t thread_t;
+	char buf[256];
+	int status;
+	int len;
+
+	send(nfc_sock, &nci_t4t_select_cmd3[3], sizeof(nci_t4t_select_cmd3) - 3, 0);
+	len = read(virtual_fd, buf, sizeof(nci_t4t_select_cmd3));
+	if (len < 0 || memcmp(buf, nci_t4t_select_cmd3, sizeof(nci_t4t_select_cmd3)))
+		return -1;
+
+	len = recv(nfc_sock, buf, sizeof(nci_t4t_rsp_ok), 0);
+	if (len != -1)
+		return -1;
+
+	status = pthread_create(&thread_t, NULL, virtual_deactivate_proc,
+				(void *)&virtual_fd);
+
+	close(nfc_sock);
+	pthread_join(thread_t, (void **)&status);
+	return status;
+}
+
+TEST_F(NCI, t4t_tag_read)
+{
+	int nfc_sock;
+	int status;
+
+	status = start_polling(self->dev_idex, self->proto, self->virtual_nci_fd,
+			       self->sd, self->fid, self->pid);
+	EXPECT_EQ(status, 0);
+
+	nfc_sock = connect_tag(self->dev_idex, self->virtual_nci_fd, self->sd,
+			       self->fid, self->pid);
+	ASSERT_GT(nfc_sock, -1);
+
+	status = read_tag(nfc_sock, self->virtual_nci_fd);
+	ASSERT_EQ(status, 0);
+
+	status = disconnect_tag(nfc_sock, self->virtual_nci_fd);
+	EXPECT_EQ(status, 0);
+}
+
+TEST_F(NCI, deinit)
+{
+	struct msgtemplate msg;
+	pthread_t thread_t;
+	int status;
+	int rc;
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 1);
+
+	if (self->isNCI2)
+		rc = pthread_create(&thread_t, NULL, virtual_deinit_v2,
+				    (void *)&self->virtual_nci_fd);
+	else
+		rc = pthread_create(&thread_t, NULL, virtual_deinit,
+				    (void *)&self->virtual_nci_fd);
+	ASSERT_GT(rc, -1);
+
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_DEV_DOWN, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+
+	pthread_join(thread_t, (void **)&status);
+	self->open_state = 0;
+	ASSERT_EQ(status, 0);
+
+	rc = get_nci_devid(self->sd, self->fid, self->pid, self->dev_idex,
+			   &msg);
+	ASSERT_EQ(rc, 0);
+	EXPECT_EQ(get_dev_enable_state(&msg), 0);
+
+	/* Test that operations that normally send packets to the driver
+	 * don't cause issues when the device is already closed.
+	 * Note: the send of NFC_CMD_DEV_UP itself still succeeds it's just
+	 * that the device won't actually be up.
+	 */
+	close(self->virtual_nci_fd);
+	self->virtual_nci_fd = -1;
+	rc = send_cmd_with_idx(self->sd, self->fid, self->pid,
+			       NFC_CMD_DEV_UP, self->dev_idex);
+	EXPECT_EQ(rc, 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index 00326629d4af..6930fe926c58 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -1,3 +1,59 @@
-socket
+# SPDX-License-Identifier: GPL-2.0-only
+bind_bhash
+bind_timewait
+bind_wildcard
+busy_poller
+cmsg_sender
+epoll_busy_poll
+fin_ack_lat
+hwtstamp_config
+io_uring_zerocopy_tx
+ioam6_parser
+ip_defrag
+ip_local_port_range
+ipsec
+ipv6_flowlabel
+ipv6_flowlabel_mgr
+ipv6_fragmentation
+log.txt
+msg_zerocopy
+netlink-dumps
+nettest
+proc_net_pktgen
 psock_fanout
+psock_snd
 psock_tpacket
+reuseaddr_conflict
+reuseaddr_ports_exhausted
+reuseport_addr_any
+reuseport_bpf
+reuseport_bpf_cpu
+reuseport_bpf_numa
+reuseport_dualstack
+rxtimestamp
+sctp_hello
+sk_bind_sendto_listen
+sk_connect_zero_addr
+sk_so_peek_off
+skf_net_off
+socket
+so_incoming_cpu
+so_netns_cookie
+so_txtime
+so_rcv_listener
+stress_reuseport_listen
+tap
+tcp_fastopen_backup_key
+tcp_inq
+tcp_mmap
+tcp_port_share
+tfo
+timestamping
+tls
+tools
+tun
+txring_overwrite
+txtimestamp
+udpgso
+udpgso_bench_rx
+udpgso_bench_tx
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index fac4782c51d8..b66ba04f19d9 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -1,19 +1,216 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for net selftests
 
-CFLAGS = -Wall -O2 -g
+CFLAGS += -Wall -Wl,--no-as-needed -O2 -g
+CFLAGS += -I../../../../usr/include/ $(KHDR_INCLUDES)
+# Additional include paths needed by kselftest.h
+CFLAGS += -I../
 
-CFLAGS += -I../../../../usr/include/
+TEST_PROGS := \
+	altnames.sh \
+	amt.sh \
+	arp_ndisc_evict_nocarrier.sh \
+	arp_ndisc_untracked_subnets.sh \
+	bareudp.sh \
+	big_tcp.sh \
+	bind_bhash.sh \
+	bpf_offload.py \
+	broadcast_ether_dst.sh \
+	broadcast_pmtu.sh \
+	busy_poll_test.sh \
+	cmsg_ip.sh \
+	cmsg_so_mark.sh \
+	cmsg_so_priority.sh \
+	cmsg_time.sh \
+	drop_monitor_tests.sh \
+	fcnal-ipv4.sh \
+	fcnal-ipv6.sh \
+	fcnal-other.sh \
+	fdb_flush.sh \
+	fdb_notify.sh \
+	fib-onlink-tests.sh \
+	fib_nexthop_multiprefix.sh \
+	fib_nexthop_nongw.sh \
+	fib_nexthops.sh \
+	fib_rule_tests.sh \
+	fib_tests.sh \
+	fin_ack_lat.sh \
+	fq_band_pktlimit.sh \
+	gre_gso.sh \
+	gre_ipv6_lladdr.sh \
+	icmp.sh \
+	icmp_redirect.sh \
+	io_uring_zerocopy_tx.sh \
+	ioam6.sh \
+	ip6_gre_headroom.sh \
+	ip_defrag.sh \
+	ip_local_port_range.sh \
+	ipv6_flowlabel.sh \
+	ipv6_force_forwarding.sh \
+	ipv6_route_update_soft_lockup.sh \
+	l2_tos_ttl_inherit.sh \
+	l2tp.sh \
+	link_netns.py \
+	lwt_dst_cache_ref_loop.sh \
+	msg_zerocopy.sh \
+	nat6to4.sh \
+	ndisc_unsolicited_na_test.sh \
+	netdev-l2addr.sh \
+	netdevice.sh \
+	netns-name.sh \
+	netns-sysctl.sh \
+	nl_netdev.py \
+	pmtu.sh \
+	psock_snd.sh \
+	reuseaddr_ports_exhausted.sh \
+	reuseport_addr_any.sh \
+	route_hint.sh \
+	route_localnet.sh \
+	rps_default_mask.sh \
+	rtnetlink.py \
+	rtnetlink.sh \
+	rtnetlink_notification.sh \
+	run_afpackettests \
+	run_netsocktests \
+	rxtimestamp.sh \
+	sctp_vrf.sh \
+	skf_net_off.sh \
+	so_txtime.sh \
+	srv6_end_dt46_l3vpn_test.sh \
+	srv6_end_dt4_l3vpn_test.sh \
+	srv6_end_dt6_l3vpn_test.sh \
+	srv6_end_dx4_netfilter_test.sh \
+	srv6_end_dx6_netfilter_test.sh \
+	srv6_end_flavors_test.sh \
+	srv6_end_next_csid_l3vpn_test.sh \
+	srv6_end_x_next_csid_l3vpn_test.sh \
+	srv6_hencap_red_l3vpn_test.sh \
+	srv6_hl2encap_red_l2vpn_test.sh \
+	stress_reuseport_listen.sh \
+	tcp_fastopen_backup_key.sh \
+	test_bpf.sh \
+	test_bridge_backup_port.sh \
+	test_bridge_neigh_suppress.sh \
+	test_ingress_egress_chaining.sh \
+	test_neigh.sh \
+	test_so_rcv.sh \
+	test_vxlan_fdb_changelink.sh \
+	test_vxlan_mdb.sh \
+	test_vxlan_nh.sh \
+	test_vxlan_nolocalbypass.sh \
+	test_vxlan_under_vrf.sh \
+	test_vxlan_vnifiltering.sh \
+	tfo_passive.sh \
+	traceroute.sh \
+	txtimestamp.sh \
+	udpgro.sh \
+	udpgro_bench.sh \
+	udpgro_frglist.sh \
+	udpgro_fwd.sh \
+	udpgso.sh \
+	udpgso_bench.sh \
+	unicast_extensions.sh \
+	veth.sh \
+	vlan_bridge_binding.sh \
+	vlan_hw_filter.sh \
+	vrf-xfrm-tests.sh \
+	vrf_route_leaking.sh \
+	vrf_strict_mode_test.sh \
+	xfrm_policy.sh \
+# end of TEST_PROGS
 
-NET_PROGS = socket psock_fanout psock_tpacket
+TEST_PROGS_EXTENDED := \
+	xfrm_policy_add_speed.sh \
+# end of TEST_PROGS_EXTENDED
 
-all: $(NET_PROGS)
-%: %.c
-	$(CC) $(CFLAGS) -o $@ $^
+TEST_GEN_FILES := \
+	bind_bhash \
+	cmsg_sender \
+	fin_ack_lat \
+	hwtstamp_config \
+	io_uring_zerocopy_tx \
+	ioam6_parser \
+	ip_defrag \
+	ip_local_port_range \
+	ipsec \
+	ipv6_flowlabel \
+	ipv6_flowlabel_mgr \
+	msg_zerocopy \
+	nettest \
+	psock_fanout \
+	psock_snd \
+	psock_tpacket \
+	reuseaddr_ports_exhausted \
+	reuseport_addr_any \
+	rxtimestamp \
+	sctp_hello \
+	skf_net_off \
+	so_netns_cookie \
+	so_rcv_listener \
+	so_txtime \
+	socket \
+	stress_reuseport_listen \
+	tcp_fastopen_backup_key \
+	tcp_inq \
+	tcp_mmap \
+	tfo \
+	timestamping \
+	txring_overwrite \
+	txtimestamp \
+	udpgso \
+	udpgso_bench_rx \
+	udpgso_bench_tx \
+# end of TEST_GEN_FILES
 
-TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh
-TEST_FILES := $(NET_PROGS)
+TEST_GEN_PROGS := \
+	bind_timewait \
+	bind_wildcard \
+	epoll_busy_poll \
+	ipv6_fragmentation \
+	proc_net_pktgen \
+	reuseaddr_conflict \
+	reuseport_bpf \
+	reuseport_bpf_cpu \
+	reuseport_bpf_numa \
+	reuseport_dualstack \
+	sk_bind_sendto_listen \
+	sk_connect_zero_addr \
+	sk_so_peek_off \
+	so_incoming_cpu \
+	tap \
+	tcp_port_share \
+	tls \
+	tun \
+# end of TEST_GEN_PROGS
+
+TEST_FILES := \
+	fcnal-test.sh \
+	in_netns.sh \
+	lib.sh \
+	settings \
+# end of TEST_FILES
+
+# YNL files, must be before "include ..lib.mk"
+YNL_GEN_FILES := busy_poller
+YNL_GEN_PROGS := netlink-dumps
+TEST_GEN_FILES += $(YNL_GEN_FILES)
+TEST_GEN_PROGS += $(YNL_GEN_PROGS)
+
+TEST_GEN_FILES += $(patsubst %.c,%.o,$(wildcard *.bpf.c))
+
+TEST_INCLUDES := forwarding/lib.sh
 
 include ../lib.mk
 
-clean:
-	$(RM) $(NET_PROGS)
+# YNL build
+YNL_GENS := netdev
+include ynl.mk
+
+$(OUTPUT)/epoll_busy_poll: LDLIBS += -lcap
+$(OUTPUT)/reuseport_bpf_numa: LDLIBS += -lnuma
+$(OUTPUT)/tcp_mmap: LDLIBS += -lpthread -lcrypto
+$(OUTPUT)/tcp_inq: LDLIBS += -lpthread
+$(OUTPUT)/bind_bhash: LDLIBS += -lpthread
+$(OUTPUT)/io_uring_zerocopy_tx: CFLAGS += -I../../../include/
+
+include bpf.mk
diff --git a/tools/testing/selftests/net/af_unix/.gitignore b/tools/testing/selftests/net/af_unix/.gitignore
new file mode 100644
index 000000000000..240b26740c9e
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/.gitignore
@@ -0,0 +1,8 @@
+diag_uid
+msg_oob
+scm_inq
+scm_pidfd
+scm_rights
+so_peek_off
+unix_connect
+unix_connreset
diff --git a/tools/testing/selftests/net/af_unix/Makefile b/tools/testing/selftests/net/af_unix/Makefile
new file mode 100644
index 000000000000..3cd677b72072
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/Makefile
@@ -0,0 +1,14 @@
+CFLAGS += $(KHDR_INCLUDES) -Wall -Wflex-array-member-not-at-end
+
+TEST_GEN_PROGS := \
+	diag_uid \
+	msg_oob \
+	scm_inq \
+	scm_pidfd \
+	scm_rights \
+	so_peek_off \
+	unix_connect \
+	unix_connreset \
+# end of TEST_GEN_PROGS
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/af_unix/config b/tools/testing/selftests/net/af_unix/config
new file mode 100644
index 000000000000..b5429c15a53c
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/config
@@ -0,0 +1,3 @@
+CONFIG_AF_UNIX_OOB=y
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=m
diff --git a/tools/testing/selftests/net/af_unix/diag_uid.c b/tools/testing/selftests/net/af_unix/diag_uid.c
new file mode 100644
index 000000000000..da7d50cedee6
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/diag_uid.c
@@ -0,0 +1,177 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <unistd.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <linux/sock_diag.h>
+#include <linux/unix_diag.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+
+#include "kselftest_harness.h"
+
+FIXTURE(diag_uid)
+{
+	int netlink_fd;
+	int unix_fd;
+	__u32 inode;
+	__u64 cookie;
+};
+
+FIXTURE_VARIANT(diag_uid)
+{
+	int unshare;
+	int udiag_show;
+};
+
+FIXTURE_VARIANT_ADD(diag_uid, uid)
+{
+	.unshare = 0,
+	.udiag_show = UDIAG_SHOW_UID
+};
+
+FIXTURE_VARIANT_ADD(diag_uid, uid_unshare)
+{
+	.unshare = CLONE_NEWUSER,
+	.udiag_show = UDIAG_SHOW_UID
+};
+
+FIXTURE_SETUP(diag_uid)
+{
+	struct stat file_stat;
+	socklen_t optlen;
+	int ret;
+
+	if (variant->unshare)
+		ASSERT_EQ(unshare(variant->unshare), 0);
+
+	self->netlink_fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
+	ASSERT_NE(self->netlink_fd, -1);
+
+	self->unix_fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_NE(self->unix_fd, -1);
+
+	ret = fstat(self->unix_fd, &file_stat);
+	ASSERT_EQ(ret, 0);
+
+	self->inode = file_stat.st_ino;
+
+	optlen = sizeof(self->cookie);
+	ret = getsockopt(self->unix_fd, SOL_SOCKET, SO_COOKIE, &self->cookie, &optlen);
+	ASSERT_EQ(ret, 0);
+}
+
+FIXTURE_TEARDOWN(diag_uid)
+{
+	close(self->netlink_fd);
+	close(self->unix_fd);
+}
+
+int send_request(struct __test_metadata *_metadata,
+		 FIXTURE_DATA(diag_uid) *self,
+		 const FIXTURE_VARIANT(diag_uid) *variant)
+{
+	struct {
+		struct nlmsghdr nlh;
+		struct unix_diag_req udr;
+	} req = {
+		.nlh = {
+			.nlmsg_len = sizeof(req),
+			.nlmsg_type = SOCK_DIAG_BY_FAMILY,
+			.nlmsg_flags = NLM_F_REQUEST
+		},
+		.udr = {
+			.sdiag_family = AF_UNIX,
+			.udiag_ino = self->inode,
+			.udiag_cookie = {
+				(__u32)self->cookie,
+				(__u32)(self->cookie >> 32)
+			},
+			.udiag_show = variant->udiag_show
+		}
+	};
+	struct sockaddr_nl nladdr = {
+		.nl_family = AF_NETLINK
+	};
+	struct iovec iov = {
+		.iov_base = &req,
+		.iov_len = sizeof(req)
+	};
+	struct msghdr msg = {
+		.msg_name = &nladdr,
+		.msg_namelen = sizeof(nladdr),
+		.msg_iov = &iov,
+		.msg_iovlen = 1
+	};
+
+	return sendmsg(self->netlink_fd, &msg, 0);
+}
+
+void render_response(struct __test_metadata *_metadata,
+		     struct unix_diag_req *udr, __u32 len)
+{
+	unsigned int rta_len = len - NLMSG_LENGTH(sizeof(*udr));
+	struct rtattr *attr;
+	uid_t uid;
+
+	ASSERT_GT(len, sizeof(*udr));
+	ASSERT_EQ(udr->sdiag_family, AF_UNIX);
+
+	attr = (struct rtattr *)(udr + 1);
+	ASSERT_NE(RTA_OK(attr, rta_len), 0);
+	ASSERT_EQ(attr->rta_type, UNIX_DIAG_UID);
+
+	uid = *(uid_t *)RTA_DATA(attr);
+	ASSERT_EQ(uid, getuid());
+}
+
+void receive_response(struct __test_metadata *_metadata,
+		      FIXTURE_DATA(diag_uid) *self)
+{
+	long buf[8192 / sizeof(long)];
+	struct sockaddr_nl nladdr = {
+		.nl_family = AF_NETLINK
+	};
+	struct iovec iov = {
+		.iov_base = buf,
+		.iov_len = sizeof(buf)
+	};
+	struct msghdr msg = {
+		.msg_name = &nladdr,
+		.msg_namelen = sizeof(nladdr),
+		.msg_iov = &iov,
+		.msg_iovlen = 1
+	};
+	struct nlmsghdr *nlh;
+	int ret;
+
+	ret = recvmsg(self->netlink_fd, &msg, 0);
+	ASSERT_GT(ret, 0);
+
+	nlh = (struct nlmsghdr *)buf;
+	ASSERT_NE(NLMSG_OK(nlh, ret), 0);
+	ASSERT_EQ(nlh->nlmsg_type, SOCK_DIAG_BY_FAMILY);
+
+	render_response(_metadata, NLMSG_DATA(nlh), nlh->nlmsg_len);
+
+	nlh = NLMSG_NEXT(nlh, ret);
+	ASSERT_EQ(NLMSG_OK(nlh, ret), 0);
+}
+
+TEST_F(diag_uid, 1)
+{
+	int ret;
+
+	ret = send_request(_metadata, self, variant);
+	ASSERT_GT(ret, 0);
+
+	receive_response(_metadata, self);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/msg_oob.c b/tools/testing/selftests/net/af_unix/msg_oob.c
new file mode 100644
index 000000000000..1b499d56656c
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/msg_oob.c
@@ -0,0 +1,891 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <netinet/in.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/signalfd.h>
+#include <sys/socket.h>
+
+#include "kselftest_harness.h"
+
+#define BUF_SZ	32
+
+FIXTURE(msg_oob)
+{
+	int fd[4];		/* 0: AF_UNIX sender
+				 * 1: AF_UNIX receiver
+				 * 2: TCP sender
+				 * 3: TCP receiver
+				 */
+	int signal_fd;
+	int epoll_fd[2];	/* 0: AF_UNIX receiver
+				 * 1: TCP receiver
+				 */
+	bool tcp_compliant;
+};
+
+FIXTURE_VARIANT(msg_oob)
+{
+	bool peek;
+};
+
+FIXTURE_VARIANT_ADD(msg_oob, no_peek)
+{
+	.peek = false,
+};
+
+FIXTURE_VARIANT_ADD(msg_oob, peek)
+{
+	.peek = true
+};
+
+static void create_unix_socketpair(struct __test_metadata *_metadata,
+				   FIXTURE_DATA(msg_oob) *self)
+{
+	int ret;
+
+	ret = socketpair(AF_UNIX, SOCK_STREAM | SOCK_NONBLOCK, 0, self->fd);
+	ASSERT_EQ(ret, 0);
+}
+
+static void create_tcp_socketpair(struct __test_metadata *_metadata,
+				  FIXTURE_DATA(msg_oob) *self)
+{
+	struct sockaddr_in addr;
+	socklen_t addrlen;
+	int listen_fd;
+	int ret;
+
+	listen_fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(listen_fd, 0);
+
+	ret = listen(listen_fd, -1);
+	ASSERT_EQ(ret, 0);
+
+	addrlen = sizeof(addr);
+	ret = getsockname(listen_fd, (struct sockaddr *)&addr, &addrlen);
+	ASSERT_EQ(ret, 0);
+
+	self->fd[2] = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GE(self->fd[2], 0);
+
+	ret = connect(self->fd[2], (struct sockaddr *)&addr, addrlen);
+	ASSERT_EQ(ret, 0);
+
+	self->fd[3] = accept(listen_fd, (struct sockaddr *)&addr, &addrlen);
+	ASSERT_GE(self->fd[3], 0);
+
+	ret = fcntl(self->fd[3], F_SETFL, O_NONBLOCK);
+	ASSERT_EQ(ret, 0);
+}
+
+static void setup_sigurg(struct __test_metadata *_metadata,
+			 FIXTURE_DATA(msg_oob) *self)
+{
+	struct signalfd_siginfo siginfo;
+	int pid = getpid();
+	sigset_t mask;
+	int i, ret;
+
+	for (i = 0; i < 2; i++) {
+		ret = ioctl(self->fd[i * 2 + 1], FIOSETOWN, &pid);
+		ASSERT_EQ(ret, 0);
+	}
+
+	ret = sigemptyset(&mask);
+	ASSERT_EQ(ret, 0);
+
+	ret = sigaddset(&mask, SIGURG);
+	ASSERT_EQ(ret, 0);
+
+	ret = sigprocmask(SIG_BLOCK, &mask, NULL);
+	ASSERT_EQ(ret, 0);
+
+	self->signal_fd = signalfd(-1, &mask, SFD_NONBLOCK);
+	ASSERT_GE(self->signal_fd, 0);
+
+	ret = read(self->signal_fd, &siginfo, sizeof(siginfo));
+	ASSERT_EQ(ret, -1);
+}
+
+static void setup_epollpri(struct __test_metadata *_metadata,
+			   FIXTURE_DATA(msg_oob) *self)
+{
+	struct epoll_event event = {
+		.events = EPOLLPRI,
+	};
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		int ret;
+
+		self->epoll_fd[i] = epoll_create1(0);
+		ASSERT_GE(self->epoll_fd[i], 0);
+
+		ret = epoll_ctl(self->epoll_fd[i], EPOLL_CTL_ADD, self->fd[i * 2 + 1], &event);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+static void close_sockets(FIXTURE_DATA(msg_oob) *self)
+{
+	int i;
+
+	for (i = 0; i < 4; i++)
+		close(self->fd[i]);
+}
+
+FIXTURE_SETUP(msg_oob)
+{
+	create_unix_socketpair(_metadata, self);
+	create_tcp_socketpair(_metadata, self);
+
+	setup_sigurg(_metadata, self);
+	setup_epollpri(_metadata, self);
+
+	self->tcp_compliant = true;
+}
+
+FIXTURE_TEARDOWN(msg_oob)
+{
+	close_sockets(self);
+}
+
+static void __epollpair(struct __test_metadata *_metadata,
+			FIXTURE_DATA(msg_oob) *self,
+			bool oob_remaining)
+{
+	struct epoll_event event[2] = {};
+	int i, ret[2];
+
+	for (i = 0; i < 2; i++)
+		ret[i] = epoll_wait(self->epoll_fd[i], &event[i], 1, 0);
+
+	ASSERT_EQ(ret[0], oob_remaining);
+
+	if (self->tcp_compliant)
+		ASSERT_EQ(ret[0], ret[1]);
+
+	if (oob_remaining) {
+		ASSERT_EQ(event[0].events, EPOLLPRI);
+
+		if (self->tcp_compliant)
+			ASSERT_EQ(event[0].events, event[1].events);
+	}
+}
+
+static void __sendpair(struct __test_metadata *_metadata,
+		       FIXTURE_DATA(msg_oob) *self,
+		       const void *buf, size_t len, int flags)
+{
+	int i, ret[2];
+
+	for (i = 0; i < 2; i++) {
+		struct signalfd_siginfo siginfo = {};
+		int bytes;
+
+		ret[i] = send(self->fd[i * 2], buf, len, flags);
+
+		bytes = read(self->signal_fd, &siginfo, sizeof(siginfo));
+
+		if (flags & MSG_OOB) {
+			ASSERT_EQ(bytes, sizeof(siginfo));
+			ASSERT_EQ(siginfo.ssi_signo, SIGURG);
+
+			bytes = read(self->signal_fd, &siginfo, sizeof(siginfo));
+		}
+
+		ASSERT_EQ(bytes, -1);
+	}
+
+	ASSERT_EQ(ret[0], len);
+	ASSERT_EQ(ret[0], ret[1]);
+}
+
+static void __recvpair(struct __test_metadata *_metadata,
+		       FIXTURE_DATA(msg_oob) *self,
+		       const char *expected_buf, int expected_len,
+		       int buf_len, int flags, bool is_sender)
+{
+	int i, ret[2], recv_errno[2], expected_errno = 0;
+	char recv_buf[2][BUF_SZ] = {};
+	bool printed = false;
+
+	ASSERT_GE(BUF_SZ, buf_len);
+
+	errno = 0;
+
+	for (i = 0; i < 2; i++) {
+		int index = is_sender ? i * 2 : i * 2 + 1;
+
+		ret[i] = recv(self->fd[index], recv_buf[i], buf_len, flags);
+		recv_errno[i] = errno;
+	}
+
+	if (expected_len < 0) {
+		expected_errno = -expected_len;
+		expected_len = -1;
+	}
+
+	if (ret[0] != expected_len || recv_errno[0] != expected_errno) {
+		TH_LOG("AF_UNIX :%s", ret[0] < 0 ? strerror(recv_errno[0]) : recv_buf[0]);
+		TH_LOG("Expected:%s", expected_errno ? strerror(expected_errno) : expected_buf);
+
+		ASSERT_EQ(ret[0], expected_len);
+		ASSERT_EQ(recv_errno[0], expected_errno);
+	}
+
+	if (ret[0] != ret[1] || recv_errno[0] != recv_errno[1]) {
+		TH_LOG("AF_UNIX :%s", ret[0] < 0 ? strerror(recv_errno[0]) : recv_buf[0]);
+		TH_LOG("TCP     :%s", ret[1] < 0 ? strerror(recv_errno[1]) : recv_buf[1]);
+
+		printed = true;
+
+		if (self->tcp_compliant) {
+			ASSERT_EQ(ret[0], ret[1]);
+			ASSERT_EQ(recv_errno[0], recv_errno[1]);
+		}
+	}
+
+	if (expected_len >= 0) {
+		int cmp;
+
+		cmp = strncmp(expected_buf, recv_buf[0], expected_len);
+		if (cmp) {
+			TH_LOG("AF_UNIX :%s", ret[0] < 0 ? strerror(recv_errno[0]) : recv_buf[0]);
+			TH_LOG("Expected:%s", expected_errno ? strerror(expected_errno) : expected_buf);
+
+			ASSERT_EQ(cmp, 0);
+		}
+
+		cmp = strncmp(recv_buf[0], recv_buf[1], expected_len);
+		if (cmp) {
+			if (!printed) {
+				TH_LOG("AF_UNIX :%s", ret[0] < 0 ? strerror(recv_errno[0]) : recv_buf[0]);
+				TH_LOG("TCP     :%s", ret[1] < 0 ? strerror(recv_errno[1]) : recv_buf[1]);
+			}
+
+			if (self->tcp_compliant)
+				ASSERT_EQ(cmp, 0);
+		}
+	}
+}
+
+static void __setinlinepair(struct __test_metadata *_metadata,
+			    FIXTURE_DATA(msg_oob) *self)
+{
+	int i, oob_inline = 1;
+
+	for (i = 0; i < 2; i++) {
+		int ret;
+
+		ret = setsockopt(self->fd[i * 2 + 1], SOL_SOCKET, SO_OOBINLINE,
+				 &oob_inline, sizeof(oob_inline));
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+static void __siocatmarkpair(struct __test_metadata *_metadata,
+			     FIXTURE_DATA(msg_oob) *self,
+			     bool oob_head)
+{
+	int answ[2] = {};
+	int i;
+
+	for (i = 0; i < 2; i++) {
+		int ret;
+
+		ret = ioctl(self->fd[i * 2 + 1], SIOCATMARK, &answ[i]);
+		ASSERT_EQ(ret, 0);
+	}
+
+	ASSERT_EQ(answ[0], oob_head);
+
+	if (self->tcp_compliant)
+		ASSERT_EQ(answ[0], answ[1]);
+}
+
+static void __resetpair(struct __test_metadata *_metadata,
+			FIXTURE_DATA(msg_oob) *self,
+			const FIXTURE_VARIANT(msg_oob) *variant,
+			bool reset)
+{
+	int i;
+
+	for (i = 0; i < 2; i++)
+		close(self->fd[i * 2 + 1]);
+
+	__recvpair(_metadata, self, "", reset ? -ECONNRESET : 0, 1,
+		   variant->peek ? MSG_PEEK : 0, true);
+}
+
+#define sendpair(buf, len, flags)					\
+	__sendpair(_metadata, self, buf, len, flags)
+
+#define recvpair(expected_buf, expected_len, buf_len, flags)		\
+	do {								\
+		if (variant->peek)					\
+			__recvpair(_metadata, self,			\
+				   expected_buf, expected_len,		\
+				   buf_len, (flags) | MSG_PEEK, false);	\
+		__recvpair(_metadata, self,				\
+			   expected_buf, expected_len,			\
+			   buf_len, flags, false);			\
+	} while (0)
+
+#define epollpair(oob_remaining)					\
+	__epollpair(_metadata, self, oob_remaining)
+
+#define siocatmarkpair(oob_head)					\
+	__siocatmarkpair(_metadata, self, oob_head)
+
+#define setinlinepair()							\
+	__setinlinepair(_metadata, self)
+
+#define resetpair(reset)						\
+	__resetpair(_metadata, self, variant, reset)
+
+#define tcp_incompliant							\
+	for (self->tcp_compliant = false;				\
+	     self->tcp_compliant == false;				\
+	     self->tcp_compliant = true)
+
+TEST_F(msg_oob, non_oob)
+{
+	sendpair("x", 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(true);
+}
+
+TEST_F(msg_oob, non_oob_no_reset)
+{
+	sendpair("x", 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("x", 1, 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, oob)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("x", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	tcp_incompliant {
+		resetpair(false);		/* TCP sets -ECONNRESET for ex-OOB. */
+	}
+}
+
+TEST_F(msg_oob, oob_reset)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	resetpair(true);
+}
+
+TEST_F(msg_oob, oob_drop)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("", -EAGAIN, 1, 0);		/* Drop OOB. */
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, oob_ahead)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 4, 0);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	tcp_incompliant {
+		resetpair(false);		/* TCP sets -ECONNRESET for ex-OOB. */
+	}
+}
+
+TEST_F(msg_oob, oob_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 5, 0);		/* Break at OOB even with enough buffer. */
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	recvpair("", -EAGAIN, 1, 0);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, oob_ahead_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("world", 5, 0);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 9, 0);		/* Break at OOB even after it's recv()ed. */
+	epollpair(false);
+	siocatmarkpair(true);
+
+	recvpair("world", 5, 5, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, oob_break_drop)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("world", 5, 0);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 10, 0);		/* Break at OOB even with enough buffer. */
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("world", 5, 10, 0);		/* Drop OOB and recv() the next skb. */
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, ex_oob_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("wor", 3, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("ld", 2, 0);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hellowo", 7, 10, 0);		/* Break at OOB but not at ex-OOB. */
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("r", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	recvpair("ld", 2, 2, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, ex_oob_drop)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);		/* TCP drops "x" at this moment. */
+	epollpair(true);
+
+	tcp_incompliant {
+		siocatmarkpair(false);
+
+		recvpair("x", 1, 1, 0);		/* TCP drops "y" by passing through it. */
+		epollpair(true);
+		siocatmarkpair(true);
+
+		recvpair("y", 1, 1, MSG_OOB);	/* TCP returns -EINVAL. */
+		epollpair(false);
+		siocatmarkpair(true);
+	}
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, ex_oob_drop_2)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);		/* TCP drops "x" at this moment. */
+	epollpair(true);
+
+	tcp_incompliant {
+		siocatmarkpair(false);
+	}
+
+	recvpair("y", 1, 1, MSG_OOB);
+	epollpair(false);
+
+	tcp_incompliant {
+		siocatmarkpair(false);
+
+		recvpair("x", 1, 1, 0);		/* TCP returns -EAGAIN. */
+		epollpair(false);
+		siocatmarkpair(true);
+	}
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, ex_oob_oob)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("x", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("", -EAGAIN, 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, ex_oob_ex_oob)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("x", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("y", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	tcp_incompliant {
+		resetpair(false);		/* TCP sets -ECONNRESET for ex-OOB. */
+	}
+}
+
+TEST_F(msg_oob, ex_oob_ex_oob_oob)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("x", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("y", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	sendpair("z", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+}
+
+TEST_F(msg_oob, ex_oob_ahead_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("wor", 3, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("r", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	sendpair("ld", 2, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	tcp_incompliant {
+		recvpair("hellowol", 8, 10, 0);	/* TCP recv()s "helloworl", why "r" ?? */
+	}
+
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("d", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(true);
+
+	tcp_incompliant {
+		resetpair(false);		/* TCP sets -ECONNRESET for ex-OOB. */
+	}
+}
+
+TEST_F(msg_oob, ex_oob_siocatmark)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	sendpair("world", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 4, 0);		/* Intentionally stop at ex-OOB. */
+	epollpair(true);
+	siocatmarkpair(false);
+
+	resetpair(true);
+}
+
+TEST_F(msg_oob, inline_oob)
+{
+	setinlinepair();
+
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("x", 1, 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_oob_break)
+{
+	setinlinepair();
+
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("", -EINVAL, 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 5, 0);		/* Break at OOB but not at ex-OOB. */
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("o", 1, 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_oob_ahead_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("world", 5, 0);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	setinlinepair();
+
+	recvpair("hell", 4, 9, 0);		/* Break at OOB even with enough buffer. */
+	epollpair(false);
+	siocatmarkpair(true);
+
+	tcp_incompliant {
+		recvpair("world", 5, 6, 0);	/* TCP recv()s "oworld", ... "o" ??? */
+	}
+
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_ex_oob_break)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("wor", 3, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	sendpair("ld", 2, 0);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	setinlinepair();
+
+	recvpair("hellowo", 7, 10, 0);		/* Break at OOB but not at ex-OOB. */
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("rld", 3, 3, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_ex_oob_no_drop)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	setinlinepair();
+
+	sendpair("y", 1, MSG_OOB);		/* TCP does NOT drops "x" at this moment. */
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("x", 1, 1, 0);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	recvpair("y", 1, 1, 0);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_ex_oob_drop)
+{
+	sendpair("x", 1, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(true);
+
+	sendpair("y", 1, MSG_OOB);		/* TCP drops "x" at this moment. */
+	epollpair(true);
+
+	setinlinepair();
+
+	tcp_incompliant {
+		siocatmarkpair(false);
+
+		recvpair("x", 1, 1, 0);		/* TCP recv()s "y". */
+		epollpair(true);
+		siocatmarkpair(true);
+
+		recvpair("y", 1, 1, 0);		/* TCP returns -EAGAIN. */
+		epollpair(false);
+		siocatmarkpair(false);
+	}
+
+	resetpair(false);
+}
+
+TEST_F(msg_oob, inline_ex_oob_siocatmark)
+{
+	sendpair("hello", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("o", 1, 1, MSG_OOB);
+	epollpair(false);
+	siocatmarkpair(false);
+
+	setinlinepair();
+
+	sendpair("world", 5, MSG_OOB);
+	epollpair(true);
+	siocatmarkpair(false);
+
+	recvpair("hell", 4, 4, 0);		/* Intentionally stop at ex-OOB. */
+	epollpair(true);
+	siocatmarkpair(false);
+
+	resetpair(true);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/scm_inq.c b/tools/testing/selftests/net/af_unix/scm_inq.c
new file mode 100644
index 000000000000..3a86be9bda17
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/scm_inq.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2025 Google LLC */
+
+#include <linux/sockios.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include "kselftest_harness.h"
+
+#define NR_CHUNKS	100
+#define MSG_LEN		256
+
+FIXTURE(scm_inq)
+{
+	int fd[2];
+};
+
+FIXTURE_VARIANT(scm_inq)
+{
+	int type;
+};
+
+FIXTURE_VARIANT_ADD(scm_inq, stream)
+{
+	.type = SOCK_STREAM,
+};
+
+FIXTURE_VARIANT_ADD(scm_inq, dgram)
+{
+	.type = SOCK_DGRAM,
+};
+
+FIXTURE_VARIANT_ADD(scm_inq, seqpacket)
+{
+	.type = SOCK_SEQPACKET,
+};
+
+FIXTURE_SETUP(scm_inq)
+{
+	int err;
+
+	err = socketpair(AF_UNIX, variant->type | SOCK_NONBLOCK, 0, self->fd);
+	ASSERT_EQ(0, err);
+}
+
+FIXTURE_TEARDOWN(scm_inq)
+{
+	close(self->fd[0]);
+	close(self->fd[1]);
+}
+
+static void send_chunks(struct __test_metadata *_metadata,
+			FIXTURE_DATA(scm_inq) *self)
+{
+	char buf[MSG_LEN] = {};
+	int i, ret;
+
+	for (i = 0; i < NR_CHUNKS; i++) {
+		ret = send(self->fd[0], buf, sizeof(buf), 0);
+		ASSERT_EQ(sizeof(buf), ret);
+	}
+}
+
+static void recv_chunks(struct __test_metadata *_metadata,
+			FIXTURE_DATA(scm_inq) *self)
+{
+	char cmsg_buf[CMSG_SPACE(sizeof(int))];
+	struct msghdr msg = {};
+	struct iovec iov = {};
+	struct cmsghdr *cmsg;
+	char buf[MSG_LEN];
+	int i, ret;
+	int inq;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsg_buf;
+	msg.msg_controllen = sizeof(cmsg_buf);
+
+	iov.iov_base = buf;
+	iov.iov_len = sizeof(buf);
+
+	for (i = 0; i < NR_CHUNKS; i++) {
+		memset(buf, 0, sizeof(buf));
+		memset(cmsg_buf, 0, sizeof(cmsg_buf));
+
+		ret = recvmsg(self->fd[1], &msg, 0);
+		ASSERT_EQ(MSG_LEN, ret);
+
+		cmsg = CMSG_FIRSTHDR(&msg);
+		ASSERT_NE(NULL, cmsg);
+		ASSERT_EQ(CMSG_LEN(sizeof(int)), cmsg->cmsg_len);
+		ASSERT_EQ(SOL_SOCKET, cmsg->cmsg_level);
+		ASSERT_EQ(SCM_INQ, cmsg->cmsg_type);
+
+		ret = ioctl(self->fd[1], SIOCINQ, &inq);
+		ASSERT_EQ(0, ret);
+		ASSERT_EQ(*(int *)CMSG_DATA(cmsg), inq);
+	}
+}
+
+TEST_F(scm_inq, basic)
+{
+	int err, inq;
+
+	err = setsockopt(self->fd[1], SOL_SOCKET, SO_INQ, &(int){1}, sizeof(int));
+	if (variant->type != SOCK_STREAM) {
+		ASSERT_EQ(-ENOPROTOOPT, -errno);
+		return;
+	}
+
+	ASSERT_EQ(0, err);
+
+	err = ioctl(self->fd[1], SIOCINQ, &inq);
+	ASSERT_EQ(0, err);
+	ASSERT_EQ(0, inq);
+
+	send_chunks(_metadata, self);
+	recv_chunks(_metadata, self);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/scm_pidfd.c b/tools/testing/selftests/net/af_unix/scm_pidfd.c
new file mode 100644
index 000000000000..2c18b92a2603
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/scm_pidfd.c
@@ -0,0 +1,556 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+#define _GNU_SOURCE
+#include <error.h>
+#include <limits.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <linux/socket.h>
+#include <unistd.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/un.h>
+#include <sys/signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "../../pidfd/pidfd.h"
+#include "kselftest_harness.h"
+
+#define clean_errno() (errno == 0 ? "None" : strerror(errno))
+#define log_err(MSG, ...)                                                   \
+	fprintf(stderr, "(%s:%d: errno: %s) " MSG "\n", __FILE__, __LINE__, \
+		clean_errno(), ##__VA_ARGS__)
+
+#ifndef SCM_PIDFD
+#define SCM_PIDFD 0x04
+#endif
+
+#define CHILD_EXIT_CODE_OK 123
+
+static void child_die()
+{
+	exit(1);
+}
+
+static int safe_int(const char *numstr, int *converted)
+{
+	char *err = NULL;
+	long sli;
+
+	errno = 0;
+	sli = strtol(numstr, &err, 0);
+	if (errno == ERANGE && (sli == LONG_MAX || sli == LONG_MIN))
+		return -ERANGE;
+
+	if (errno != 0 && sli == 0)
+		return -EINVAL;
+
+	if (err == numstr || *err != '\0')
+		return -EINVAL;
+
+	if (sli > INT_MAX || sli < INT_MIN)
+		return -ERANGE;
+
+	*converted = (int)sli;
+	return 0;
+}
+
+static int char_left_gc(const char *buffer, size_t len)
+{
+	size_t i;
+
+	for (i = 0; i < len; i++) {
+		if (buffer[i] == ' ' || buffer[i] == '\t')
+			continue;
+
+		return i;
+	}
+
+	return 0;
+}
+
+static int char_right_gc(const char *buffer, size_t len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0; i--) {
+		if (buffer[i] == ' ' || buffer[i] == '\t' ||
+		    buffer[i] == '\n' || buffer[i] == '\0')
+			continue;
+
+		return i + 1;
+	}
+
+	return 0;
+}
+
+static char *trim_whitespace_in_place(char *buffer)
+{
+	buffer += char_left_gc(buffer, strlen(buffer));
+	buffer[char_right_gc(buffer, strlen(buffer))] = '\0';
+	return buffer;
+}
+
+/* borrowed (with all helpers) from pidfd/pidfd_open_test.c */
+static pid_t get_pid_from_fdinfo_file(int pidfd, const char *key, size_t keylen)
+{
+	int ret;
+	char path[512];
+	FILE *f;
+	size_t n = 0;
+	pid_t result = -1;
+	char *line = NULL;
+
+	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", pidfd);
+
+	f = fopen(path, "re");
+	if (!f)
+		return -1;
+
+	while (getline(&line, &n, f) != -1) {
+		char *numstr;
+
+		if (strncmp(line, key, keylen))
+			continue;
+
+		numstr = trim_whitespace_in_place(line + 4);
+		ret = safe_int(numstr, &result);
+		if (ret < 0)
+			goto out;
+
+		break;
+	}
+
+out:
+	free(line);
+	fclose(f);
+	return result;
+}
+
+struct cmsg_data {
+	struct ucred *ucred;
+	int *pidfd;
+};
+
+static int parse_cmsg(struct msghdr *msg, struct cmsg_data *res)
+{
+	struct cmsghdr *cmsg;
+
+	if (msg->msg_flags & (MSG_TRUNC | MSG_CTRUNC)) {
+		log_err("recvmsg: truncated");
+		return 1;
+	}
+
+	for (cmsg = CMSG_FIRSTHDR(msg); cmsg != NULL;
+	     cmsg = CMSG_NXTHDR(msg, cmsg)) {
+		if (cmsg->cmsg_level == SOL_SOCKET &&
+		    cmsg->cmsg_type == SCM_PIDFD) {
+			if (cmsg->cmsg_len < sizeof(*res->pidfd)) {
+				log_err("CMSG parse: SCM_PIDFD wrong len");
+				return 1;
+			}
+
+			res->pidfd = (void *)CMSG_DATA(cmsg);
+		}
+
+		if (cmsg->cmsg_level == SOL_SOCKET &&
+		    cmsg->cmsg_type == SCM_CREDENTIALS) {
+			if (cmsg->cmsg_len < sizeof(*res->ucred)) {
+				log_err("CMSG parse: SCM_CREDENTIALS wrong len");
+				return 1;
+			}
+
+			res->ucred = (void *)CMSG_DATA(cmsg);
+		}
+	}
+
+	if (!res->pidfd) {
+		log_err("CMSG parse: SCM_PIDFD not found");
+		return 1;
+	}
+
+	if (!res->ucred) {
+		log_err("CMSG parse: SCM_CREDENTIALS not found");
+		return 1;
+	}
+
+	return 0;
+}
+
+static int cmsg_check(int fd)
+{
+	struct msghdr msg = { 0 };
+	struct cmsg_data res;
+	struct iovec iov;
+	int data = 0;
+	char control[CMSG_SPACE(sizeof(struct ucred)) +
+		     CMSG_SPACE(sizeof(int))] = { 0 };
+	pid_t parent_pid;
+	int err;
+
+	iov.iov_base = &data;
+	iov.iov_len = sizeof(data);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	err = recvmsg(fd, &msg, 0);
+	if (err < 0) {
+		log_err("recvmsg");
+		return 1;
+	}
+
+	if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC)) {
+		log_err("recvmsg: truncated");
+		return 1;
+	}
+
+	/* send(pfd, "x", sizeof(char), 0) */
+	if (data != 'x') {
+		log_err("recvmsg: data corruption");
+		return 1;
+	}
+
+	if (parse_cmsg(&msg, &res)) {
+		log_err("CMSG parse: parse_cmsg() failed");
+		return 1;
+	}
+
+	/* pidfd from SCM_PIDFD should point to the parent process PID */
+	parent_pid =
+		get_pid_from_fdinfo_file(*res.pidfd, "Pid:", sizeof("Pid:") - 1);
+	if (parent_pid != getppid()) {
+		log_err("wrong SCM_PIDFD %d != %d", parent_pid, getppid());
+		close(*res.pidfd);
+		return 1;
+	}
+
+	close(*res.pidfd);
+	return 0;
+}
+
+static int cmsg_check_dead(int fd, int expected_pid)
+{
+	int err;
+	struct msghdr msg = { 0 };
+	struct cmsg_data res;
+	struct iovec iov;
+	int data = 0;
+	char control[CMSG_SPACE(sizeof(struct ucred)) +
+		     CMSG_SPACE(sizeof(int))] = { 0 };
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_EXIT,
+	};
+
+	iov.iov_base = &data;
+	iov.iov_len = sizeof(data);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	err = recvmsg(fd, &msg, 0);
+	if (err < 0) {
+		log_err("recvmsg");
+		return 1;
+	}
+
+	if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC)) {
+		log_err("recvmsg: truncated");
+		return 1;
+	}
+
+	/* send(cfd, "y", sizeof(char), 0) */
+	if (data != 'y') {
+		log_err("recvmsg: data corruption");
+		return 1;
+	}
+
+	if (parse_cmsg(&msg, &res)) {
+		log_err("CMSG parse: parse_cmsg() failed");
+		return 1;
+	}
+
+	/*
+	 * pidfd from SCM_PIDFD should point to the client_pid.
+	 * Let's read exit information and check if it's what
+	 * we expect to see.
+	 */
+	if (ioctl(*res.pidfd, PIDFD_GET_INFO, &info)) {
+		log_err("%s: ioctl(PIDFD_GET_INFO) failed", __func__);
+		close(*res.pidfd);
+		return 1;
+	}
+
+	if (!(info.mask & PIDFD_INFO_EXIT)) {
+		log_err("%s: No exit information from ioctl(PIDFD_GET_INFO)", __func__);
+		close(*res.pidfd);
+		return 1;
+	}
+
+	err = WIFEXITED(info.exit_code) ? WEXITSTATUS(info.exit_code) : 1;
+	if (err != CHILD_EXIT_CODE_OK) {
+		log_err("%s: wrong exit_code %d != %d", __func__, err, CHILD_EXIT_CODE_OK);
+		close(*res.pidfd);
+		return 1;
+	}
+
+	close(*res.pidfd);
+	return 0;
+}
+
+struct sock_addr {
+	char sock_name[32];
+	struct sockaddr_un listen_addr;
+	socklen_t addrlen;
+};
+
+FIXTURE(scm_pidfd)
+{
+	int server;
+	pid_t client_pid;
+	int startup_pipe[2];
+	struct sock_addr server_addr;
+	struct sock_addr *client_addr;
+};
+
+FIXTURE_VARIANT(scm_pidfd)
+{
+	int type;
+	bool abstract;
+};
+
+FIXTURE_VARIANT_ADD(scm_pidfd, stream_pathname)
+{
+	.type = SOCK_STREAM,
+	.abstract = 0,
+};
+
+FIXTURE_VARIANT_ADD(scm_pidfd, stream_abstract)
+{
+	.type = SOCK_STREAM,
+	.abstract = 1,
+};
+
+FIXTURE_VARIANT_ADD(scm_pidfd, dgram_pathname)
+{
+	.type = SOCK_DGRAM,
+	.abstract = 0,
+};
+
+FIXTURE_VARIANT_ADD(scm_pidfd, dgram_abstract)
+{
+	.type = SOCK_DGRAM,
+	.abstract = 1,
+};
+
+FIXTURE_SETUP(scm_pidfd)
+{
+	self->client_addr = mmap(NULL, sizeof(*self->client_addr), PROT_READ | PROT_WRITE,
+				 MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(MAP_FAILED, self->client_addr);
+}
+
+FIXTURE_TEARDOWN(scm_pidfd)
+{
+	close(self->server);
+
+	kill(self->client_pid, SIGKILL);
+	waitpid(self->client_pid, NULL, 0);
+
+	if (!variant->abstract) {
+		unlink(self->server_addr.sock_name);
+		unlink(self->client_addr->sock_name);
+	}
+}
+
+static void fill_sockaddr(struct sock_addr *addr, bool abstract)
+{
+	char *sun_path_buf = (char *)&addr->listen_addr.sun_path;
+
+	addr->listen_addr.sun_family = AF_UNIX;
+	addr->addrlen = offsetof(struct sockaddr_un, sun_path);
+	snprintf(addr->sock_name, sizeof(addr->sock_name), "scm_pidfd_%d", getpid());
+	addr->addrlen += strlen(addr->sock_name);
+	if (abstract) {
+		*sun_path_buf = '\0';
+		addr->addrlen++;
+		sun_path_buf++;
+	} else {
+		unlink(addr->sock_name);
+	}
+	memcpy(sun_path_buf, addr->sock_name, strlen(addr->sock_name));
+}
+
+static int sk_enable_cred_pass(int sk)
+{
+	int on = 0;
+
+	on = 1;
+	if (setsockopt(sk, SOL_SOCKET, SO_PASSCRED, &on, sizeof(on))) {
+		log_err("Failed to set SO_PASSCRED");
+		return 1;
+	}
+
+	if (setsockopt(sk, SOL_SOCKET, SO_PASSPIDFD, &on, sizeof(on))) {
+		log_err("Failed to set SO_PASSPIDFD");
+		return 1;
+	}
+
+	return 0;
+}
+
+static void client(FIXTURE_DATA(scm_pidfd) *self,
+		   const FIXTURE_VARIANT(scm_pidfd) *variant)
+{
+	int cfd;
+	socklen_t len;
+	struct ucred peer_cred;
+	int peer_pidfd;
+	pid_t peer_pid;
+
+	cfd = socket(AF_UNIX, variant->type, 0);
+	if (cfd < 0) {
+		log_err("socket");
+		child_die();
+	}
+
+	if (variant->type == SOCK_DGRAM) {
+		fill_sockaddr(self->client_addr, variant->abstract);
+
+		if (bind(cfd, (struct sockaddr *)&self->client_addr->listen_addr, self->client_addr->addrlen)) {
+			log_err("bind");
+			child_die();
+		}
+	}
+
+	if (connect(cfd, (struct sockaddr *)&self->server_addr.listen_addr,
+		    self->server_addr.addrlen) != 0) {
+		log_err("connect");
+		child_die();
+	}
+
+	if (sk_enable_cred_pass(cfd)) {
+		log_err("sk_enable_cred_pass() failed");
+		child_die();
+	}
+
+	close(self->startup_pipe[1]);
+
+	if (cmsg_check(cfd)) {
+		log_err("cmsg_check failed");
+		child_die();
+	}
+
+	/* send something to the parent so it can receive SCM_PIDFD too and validate it */
+	if (send(cfd, "y", sizeof(char), 0) == -1) {
+		log_err("Failed to send(cfd, \"y\", sizeof(char), 0)");
+		child_die();
+	}
+
+	/* skip further for SOCK_DGRAM as it's not applicable */
+	if (variant->type == SOCK_DGRAM)
+		return;
+
+	len = sizeof(peer_cred);
+	if (getsockopt(cfd, SOL_SOCKET, SO_PEERCRED, &peer_cred, &len)) {
+		log_err("Failed to get SO_PEERCRED");
+		child_die();
+	}
+
+	len = sizeof(peer_pidfd);
+	if (getsockopt(cfd, SOL_SOCKET, SO_PEERPIDFD, &peer_pidfd, &len)) {
+		log_err("Failed to get SO_PEERPIDFD");
+		child_die();
+	}
+
+	/* pid from SO_PEERCRED should point to the parent process PID */
+	if (peer_cred.pid != getppid()) {
+		log_err("peer_cred.pid != getppid(): %d != %d", peer_cred.pid, getppid());
+		child_die();
+	}
+
+	peer_pid = get_pid_from_fdinfo_file(peer_pidfd,
+					    "Pid:", sizeof("Pid:") - 1);
+	if (peer_pid != peer_cred.pid) {
+		log_err("peer_pid != peer_cred.pid: %d != %d", peer_pid, peer_cred.pid);
+		child_die();
+	}
+}
+
+TEST_F(scm_pidfd, test)
+{
+	int err;
+	int pfd;
+	int child_status = 0;
+
+	self->server = socket(AF_UNIX, variant->type, 0);
+	ASSERT_NE(-1, self->server);
+
+	fill_sockaddr(&self->server_addr, variant->abstract);
+
+	err = bind(self->server, (struct sockaddr *)&self->server_addr.listen_addr, self->server_addr.addrlen);
+	ASSERT_EQ(0, err);
+
+	if (variant->type == SOCK_STREAM) {
+		err = listen(self->server, 1);
+		ASSERT_EQ(0, err);
+	}
+
+	err = pipe(self->startup_pipe);
+	ASSERT_NE(-1, err);
+
+	self->client_pid = fork();
+	ASSERT_NE(-1, self->client_pid);
+	if (self->client_pid == 0) {
+		close(self->server);
+		close(self->startup_pipe[0]);
+		client(self, variant);
+
+		/*
+		 * It's a bit unusual, but in case of success we return non-zero
+		 * exit code (CHILD_EXIT_CODE_OK) and then we expect to read it
+		 * from ioctl(PIDFD_GET_INFO) in cmsg_check_dead().
+		 */
+		exit(CHILD_EXIT_CODE_OK);
+	}
+	close(self->startup_pipe[1]);
+
+	if (variant->type == SOCK_STREAM) {
+		pfd = accept(self->server, NULL, NULL);
+		ASSERT_NE(-1, pfd);
+	} else {
+		pfd = self->server;
+	}
+
+	/* wait until the child arrives at checkpoint */
+	read(self->startup_pipe[0], &err, sizeof(int));
+	close(self->startup_pipe[0]);
+
+	if (variant->type == SOCK_DGRAM) {
+		err = sendto(pfd, "x", sizeof(char), 0, (struct sockaddr *)&self->client_addr->listen_addr, self->client_addr->addrlen);
+		ASSERT_NE(-1, err);
+	} else {
+		err = send(pfd, "x", sizeof(char), 0);
+		ASSERT_NE(-1, err);
+	}
+
+	waitpid(self->client_pid, &child_status, 0);
+	/* see comment before exit(CHILD_EXIT_CODE_OK) */
+	ASSERT_EQ(CHILD_EXIT_CODE_OK, WIFEXITED(child_status) ? WEXITSTATUS(child_status) : 1);
+
+	err = sk_enable_cred_pass(pfd);
+	ASSERT_EQ(0, err);
+
+	err = cmsg_check_dead(pfd, self->client_pid);
+	ASSERT_EQ(0, err);
+
+	close(pfd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/scm_rights.c b/tools/testing/selftests/net/af_unix/scm_rights.c
new file mode 100644
index 000000000000..d82a79c21c17
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/scm_rights.c
@@ -0,0 +1,381 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "kselftest_harness.h"
+
+FIXTURE(scm_rights)
+{
+	int fd[32];
+};
+
+FIXTURE_VARIANT(scm_rights)
+{
+	char name[32];
+	int type;
+	int flags;
+	bool test_listener;
+	bool disabled;
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, dgram)
+{
+	.name = "UNIX ",
+	.type = SOCK_DGRAM,
+	.flags = 0,
+	.test_listener = false,
+	.disabled = false,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, dgram_disabled)
+{
+	.name = "UNIX ",
+	.type = SOCK_DGRAM,
+	.flags = 0,
+	.test_listener = false,
+	.disabled = true,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = 0,
+	.test_listener = false,
+	.disabled = false,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_disabled)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = 0,
+	.test_listener = false,
+	.disabled = true,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_oob)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = MSG_OOB,
+	.test_listener = false,
+	.disabled = false,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_oob_disabled)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = MSG_OOB,
+	.test_listener = false,
+	.disabled = true,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_listener)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = 0,
+	.test_listener = true,
+	.disabled = false,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_listener_disabled)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = 0,
+	.test_listener = true,
+	.disabled = true,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_listener_oob)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = MSG_OOB,
+	.test_listener = true,
+	.disabled = false,
+};
+
+FIXTURE_VARIANT_ADD(scm_rights, stream_listener_oob_disabled)
+{
+	.name = "UNIX-STREAM ",
+	.type = SOCK_STREAM,
+	.flags = MSG_OOB,
+	.test_listener = true,
+	.disabled = true,
+};
+
+static int count_sockets(struct __test_metadata *_metadata,
+			 const FIXTURE_VARIANT(scm_rights) *variant)
+{
+	int sockets = -1, len, ret;
+	char *line = NULL;
+	size_t unused;
+	FILE *f;
+
+	f = fopen("/proc/net/protocols", "r");
+	ASSERT_NE(NULL, f);
+
+	len = strlen(variant->name);
+
+	while (getline(&line, &unused, f) != -1) {
+		int unused2;
+
+		if (strncmp(line, variant->name, len))
+			continue;
+
+		ret = sscanf(line + len, "%d %d", &unused2, &sockets);
+		ASSERT_EQ(2, ret);
+
+		break;
+	}
+
+	free(line);
+
+	ret = fclose(f);
+	ASSERT_EQ(0, ret);
+
+	return sockets;
+}
+
+FIXTURE_SETUP(scm_rights)
+{
+	int ret;
+
+	ret = unshare(CLONE_NEWNET);
+	ASSERT_EQ(0, ret);
+
+	if (variant->disabled)
+		return;
+
+	ret = count_sockets(_metadata, variant);
+	ASSERT_EQ(0, ret);
+}
+
+FIXTURE_TEARDOWN(scm_rights)
+{
+	int ret;
+
+	if (variant->disabled)
+		return;
+
+	sleep(1);
+
+	ret = count_sockets(_metadata, variant);
+	ASSERT_EQ(0, ret);
+}
+
+static void create_listeners(struct __test_metadata *_metadata,
+			     FIXTURE_DATA(scm_rights) *self,
+			     const FIXTURE_VARIANT(scm_rights) *variant,
+			     int n)
+{
+	struct sockaddr_un addr = {
+		.sun_family = AF_UNIX,
+	};
+	socklen_t addrlen;
+	int i, ret;
+
+	for (i = 0; i < n * 2; i += 2) {
+		self->fd[i] = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, self->fd[i]);
+
+		addrlen = sizeof(addr.sun_family);
+		ret = bind(self->fd[i], (struct sockaddr *)&addr, addrlen);
+		ASSERT_EQ(0, ret);
+
+		ret = listen(self->fd[i], -1);
+		ASSERT_EQ(0, ret);
+
+		if (variant->disabled) {
+			ret = setsockopt(self->fd[i], SOL_SOCKET, SO_PASSRIGHTS,
+					 &(int){0}, sizeof(int));
+			ASSERT_EQ(0, ret);
+		}
+
+		addrlen = sizeof(addr);
+		ret = getsockname(self->fd[i], (struct sockaddr *)&addr, &addrlen);
+		ASSERT_EQ(0, ret);
+
+		self->fd[i + 1] = socket(AF_UNIX, SOCK_STREAM, 0);
+		ASSERT_LE(0, self->fd[i + 1]);
+
+		ret = connect(self->fd[i + 1], (struct sockaddr *)&addr, addrlen);
+		ASSERT_EQ(0, ret);
+	}
+}
+
+static void create_socketpairs(struct __test_metadata *_metadata,
+			       FIXTURE_DATA(scm_rights) *self,
+			       const FIXTURE_VARIANT(scm_rights) *variant,
+			       int n)
+{
+	int i, ret;
+
+	ASSERT_GE(sizeof(self->fd) / sizeof(int), n);
+
+	for (i = 0; i < n * 2; i += 2) {
+		ret = socketpair(AF_UNIX, variant->type, 0, self->fd + i);
+		ASSERT_EQ(0, ret);
+
+		if (variant->disabled) {
+			ret = setsockopt(self->fd[i], SOL_SOCKET, SO_PASSRIGHTS,
+					 &(int){0}, sizeof(int));
+			ASSERT_EQ(0, ret);
+		}
+	}
+}
+
+static void __create_sockets(struct __test_metadata *_metadata,
+			     FIXTURE_DATA(scm_rights) *self,
+			     const FIXTURE_VARIANT(scm_rights) *variant,
+			     int n)
+{
+	ASSERT_LE(n * 2, sizeof(self->fd) / sizeof(self->fd[0]));
+
+	if (variant->test_listener)
+		create_listeners(_metadata, self, variant, n);
+	else
+		create_socketpairs(_metadata, self, variant, n);
+}
+
+static void __close_sockets(struct __test_metadata *_metadata,
+			    FIXTURE_DATA(scm_rights) *self,
+			    int n)
+{
+	int i, ret;
+
+	ASSERT_GE(sizeof(self->fd) / sizeof(int), n);
+
+	for (i = 0; i < n * 2; i++) {
+		ret = close(self->fd[i]);
+		ASSERT_EQ(0, ret);
+	}
+}
+
+void __send_fd(struct __test_metadata *_metadata,
+	       const FIXTURE_DATA(scm_rights) *self,
+	       const FIXTURE_VARIANT(scm_rights) *variant,
+	       int inflight, int receiver)
+{
+#define MSG "x"
+#define MSGLEN 1
+	int fds[2] = {
+		self->fd[inflight * 2],
+		self->fd[inflight * 2],
+	};
+	char cmsg_buf[CMSG_SPACE(sizeof(fds))];
+	struct iovec iov = {
+		.iov_base = MSG,
+		.iov_len = MSGLEN,
+	};
+	struct msghdr msg = {
+		.msg_name = NULL,
+		.msg_namelen = 0,
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = cmsg_buf,
+		.msg_controllen = sizeof(cmsg_buf),
+	};
+	struct cmsghdr *cmsg;
+	int ret;
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_level = SOL_SOCKET;
+	cmsg->cmsg_type = SCM_RIGHTS;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(fds));
+	memcpy(CMSG_DATA(cmsg), fds, sizeof(fds));
+
+	ret = sendmsg(self->fd[receiver * 2 + 1], &msg, variant->flags);
+
+	if (variant->disabled) {
+		ASSERT_EQ(-1, ret);
+		ASSERT_EQ(-EPERM, -errno);
+	} else {
+		ASSERT_EQ(MSGLEN, ret);
+	}
+}
+
+#define create_sockets(n)					\
+	__create_sockets(_metadata, self, variant, n)
+#define close_sockets(n)					\
+	__close_sockets(_metadata, self, n)
+#define send_fd(inflight, receiver)				\
+	__send_fd(_metadata, self, variant, inflight, receiver)
+
+TEST_F(scm_rights, self_ref)
+{
+	create_sockets(2);
+
+	send_fd(0, 0);
+
+	send_fd(1, 1);
+
+	close_sockets(2);
+}
+
+TEST_F(scm_rights, triangle)
+{
+	create_sockets(6);
+
+	send_fd(0, 1);
+	send_fd(1, 2);
+	send_fd(2, 0);
+
+	send_fd(3, 4);
+	send_fd(4, 5);
+	send_fd(5, 3);
+
+	close_sockets(6);
+}
+
+TEST_F(scm_rights, cross_edge)
+{
+	create_sockets(8);
+
+	send_fd(0, 1);
+	send_fd(1, 2);
+	send_fd(2, 0);
+	send_fd(1, 3);
+	send_fd(3, 2);
+
+	send_fd(4, 5);
+	send_fd(5, 6);
+	send_fd(6, 4);
+	send_fd(5, 7);
+	send_fd(7, 6);
+
+	close_sockets(8);
+}
+
+TEST_F(scm_rights, backtrack_from_scc)
+{
+	create_sockets(10);
+
+	send_fd(0, 1);
+	send_fd(0, 4);
+	send_fd(1, 2);
+	send_fd(2, 3);
+	send_fd(3, 1);
+
+	send_fd(5, 6);
+	send_fd(5, 9);
+	send_fd(6, 7);
+	send_fd(7, 8);
+	send_fd(8, 6);
+
+	close_sockets(10);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/so_peek_off.c b/tools/testing/selftests/net/af_unix/so_peek_off.c
new file mode 100644
index 000000000000..86e7b0fb522d
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/so_peek_off.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright 2025 Google LLC */
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+
+#include "../../kselftest_harness.h"
+
+FIXTURE(so_peek_off)
+{
+	int fd[2];	/* 0: sender, 1: receiver */
+};
+
+FIXTURE_VARIANT(so_peek_off)
+{
+	int type;
+};
+
+FIXTURE_VARIANT_ADD(so_peek_off, stream)
+{
+	.type = SOCK_STREAM,
+};
+
+FIXTURE_VARIANT_ADD(so_peek_off, dgram)
+{
+	.type = SOCK_DGRAM,
+};
+
+FIXTURE_VARIANT_ADD(so_peek_off, seqpacket)
+{
+	.type = SOCK_SEQPACKET,
+};
+
+FIXTURE_SETUP(so_peek_off)
+{
+	struct timeval timeout = {
+		.tv_sec = 5,
+		.tv_usec = 0,
+	};
+	int ret;
+
+	ret = socketpair(AF_UNIX, variant->type, 0, self->fd);
+	ASSERT_EQ(0, ret);
+
+	ret = setsockopt(self->fd[1], SOL_SOCKET, SO_RCVTIMEO_NEW,
+			 &timeout, sizeof(timeout));
+	ASSERT_EQ(0, ret);
+
+	ret = setsockopt(self->fd[1], SOL_SOCKET, SO_PEEK_OFF,
+			 &(int){0}, sizeof(int));
+	ASSERT_EQ(0, ret);
+}
+
+FIXTURE_TEARDOWN(so_peek_off)
+{
+	close_range(self->fd[0], self->fd[1], 0);
+}
+
+#define sendeq(fd, str, flags)					\
+	do {							\
+		int bytes, len = strlen(str);			\
+								\
+		bytes = send(fd, str, len, flags);		\
+		ASSERT_EQ(len, bytes);				\
+	} while (0)
+
+#define recveq(fd, str, buflen, flags)				\
+	do {							\
+		char buf[(buflen) + 1] = {};			\
+		int bytes;					\
+								\
+		bytes = recv(fd, buf, buflen, flags);		\
+		ASSERT_NE(-1, bytes);				\
+		ASSERT_STREQ(str, buf);				\
+	} while (0)
+
+#define async							\
+	for (pid_t pid = (pid = fork(),				\
+			  pid < 0 ?				\
+			  __TH_LOG("Failed to start async {}"),	\
+			  _metadata->exit_code = KSFT_FAIL,	\
+			  __bail(1, _metadata),			\
+			  0xdead :				\
+			  pid);					\
+	     !pid; exit(0))
+
+TEST_F(so_peek_off, single_chunk)
+{
+	sendeq(self->fd[0], "aaaabbbb", 0);
+
+	recveq(self->fd[1], "aaaa", 4, MSG_PEEK);
+	recveq(self->fd[1], "bbbb", 100, MSG_PEEK);
+}
+
+TEST_F(so_peek_off, two_chunks)
+{
+	sendeq(self->fd[0], "aaaa", 0);
+	sendeq(self->fd[0], "bbbb", 0);
+
+	recveq(self->fd[1], "aaaa", 4, MSG_PEEK);
+	recveq(self->fd[1], "bbbb", 100, MSG_PEEK);
+}
+
+TEST_F(so_peek_off, two_chunks_blocking)
+{
+	async {
+		usleep(1000);
+		sendeq(self->fd[0], "aaaa", 0);
+	}
+
+	recveq(self->fd[1], "aaaa", 4, MSG_PEEK);
+
+	async {
+		usleep(1000);
+		sendeq(self->fd[0], "bbbb", 0);
+	}
+
+	/* goto again; -> goto redo; in unix_stream_read_generic(). */
+	recveq(self->fd[1], "bbbb", 100, MSG_PEEK);
+}
+
+TEST_F(so_peek_off, two_chunks_overlap)
+{
+	sendeq(self->fd[0], "aaaa", 0);
+	recveq(self->fd[1], "aa", 2, MSG_PEEK);
+
+	sendeq(self->fd[0], "bbbb", 0);
+
+	if (variant->type == SOCK_STREAM) {
+		/* SOCK_STREAM tries to fill the buffer. */
+		recveq(self->fd[1], "aabb", 4, MSG_PEEK);
+		recveq(self->fd[1], "bb", 100, MSG_PEEK);
+	} else {
+		/* SOCK_DGRAM and SOCK_SEQPACKET returns at the skb boundary. */
+		recveq(self->fd[1], "aa", 100, MSG_PEEK);
+		recveq(self->fd[1], "bbbb", 100, MSG_PEEK);
+	}
+}
+
+TEST_F(so_peek_off, two_chunks_overlap_blocking)
+{
+	async {
+		usleep(1000);
+		sendeq(self->fd[0], "aaaa", 0);
+	}
+
+	recveq(self->fd[1], "aa", 2, MSG_PEEK);
+
+	async {
+		usleep(1000);
+		sendeq(self->fd[0], "bbbb", 0);
+	}
+
+	/* Even SOCK_STREAM does not wait if at least one byte is read. */
+	recveq(self->fd[1], "aa", 100, MSG_PEEK);
+
+	recveq(self->fd[1], "bbbb", 100, MSG_PEEK);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/unix_connect.c b/tools/testing/selftests/net/af_unix/unix_connect.c
new file mode 100644
index 000000000000..870ca96fa8ea
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/unix_connect.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <stddef.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "kselftest_harness.h"
+
+FIXTURE(unix_connect)
+{
+	int server, client;
+	int family;
+};
+
+FIXTURE_VARIANT(unix_connect)
+{
+	int type;
+	char sun_path[8];
+	int len;
+	int flags;
+	int err;
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_pathname)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_abstract)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_pathname_netns)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = CLONE_NEWNET,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_abstract_netns)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = CLONE_NEWNET,
+	.err = ECONNREFUSED,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_pathname)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_abstract)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_pathname_netns)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = CLONE_NEWNET,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_abstract_netns)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = CLONE_NEWNET,
+	.err = ECONNREFUSED,
+};
+
+FIXTURE_SETUP(unix_connect)
+{
+	self->family = AF_UNIX;
+}
+
+FIXTURE_TEARDOWN(unix_connect)
+{
+	close(self->server);
+	close(self->client);
+
+	if (variant->sun_path[0])
+		remove("test");
+}
+
+TEST_F(unix_connect, test)
+{
+	socklen_t addrlen;
+	struct sockaddr_un addr = {
+		.sun_family = self->family,
+	};
+	int err;
+
+	self->server = socket(self->family, variant->type, 0);
+	ASSERT_NE(-1, self->server);
+
+	addrlen = offsetof(struct sockaddr_un, sun_path) + variant->len;
+	memcpy(&addr.sun_path, variant->sun_path, variant->len);
+
+	err = bind(self->server, (struct sockaddr *)&addr, addrlen);
+	ASSERT_EQ(0, err);
+
+	if (variant->type == SOCK_STREAM) {
+		err = listen(self->server, 32);
+		ASSERT_EQ(0, err);
+	}
+
+	err = unshare(variant->flags);
+	ASSERT_EQ(0, err);
+
+	self->client = socket(self->family, variant->type, 0);
+	ASSERT_LT(0, self->client);
+
+	err = connect(self->client, (struct sockaddr *)&addr, addrlen);
+	ASSERT_EQ(variant->err, err == -1 ? errno : 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/af_unix/unix_connreset.c b/tools/testing/selftests/net/af_unix/unix_connreset.c
new file mode 100644
index 000000000000..08c1de8f5a98
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/unix_connreset.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Selftest for AF_UNIX socket close and ECONNRESET behaviour.
+ *
+ * This test verifies:
+ *  1. SOCK_STREAM returns EOF when the peer closes normally.
+ *  2. SOCK_STREAM returns ECONNRESET if peer closes with unread data.
+ *  3. SOCK_SEQPACKET returns EOF when the peer closes normally.
+ *  4. SOCK_SEQPACKET returns ECONNRESET if the peer closes with unread data.
+ *  5. SOCK_DGRAM does not return ECONNRESET when the peer closes.
+ *
+ * These tests document the intended Linux behaviour.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include "../../kselftest_harness.h"
+
+#define SOCK_PATH "/tmp/af_unix_connreset.sock"
+
+static void remove_socket_file(void)
+{
+	unlink(SOCK_PATH);
+}
+
+FIXTURE(unix_sock)
+{
+	int server;
+	int client;
+	int child;
+};
+
+FIXTURE_VARIANT(unix_sock)
+{
+	int socket_type;
+	const char *name;
+};
+
+FIXTURE_VARIANT_ADD(unix_sock, stream) {
+	.socket_type = SOCK_STREAM,
+	.name = "SOCK_STREAM",
+};
+
+FIXTURE_VARIANT_ADD(unix_sock, dgram) {
+	.socket_type = SOCK_DGRAM,
+	.name = "SOCK_DGRAM",
+};
+
+FIXTURE_VARIANT_ADD(unix_sock, seqpacket) {
+	.socket_type = SOCK_SEQPACKET,
+	.name = "SOCK_SEQPACKET",
+};
+
+FIXTURE_SETUP(unix_sock)
+{
+	struct sockaddr_un addr = {};
+	int err;
+
+	addr.sun_family = AF_UNIX;
+	strcpy(addr.sun_path, SOCK_PATH);
+	remove_socket_file();
+
+	self->server = socket(AF_UNIX, variant->socket_type, 0);
+	ASSERT_LT(-1, self->server);
+
+	err = bind(self->server, (struct sockaddr *)&addr, sizeof(addr));
+	ASSERT_EQ(0, err);
+
+	if (variant->socket_type == SOCK_STREAM ||
+	    variant->socket_type == SOCK_SEQPACKET) {
+		err = listen(self->server, 1);
+		ASSERT_EQ(0, err);
+	}
+
+	self->client = socket(AF_UNIX, variant->socket_type | SOCK_NONBLOCK, 0);
+	ASSERT_LT(-1, self->client);
+
+	err = connect(self->client, (struct sockaddr *)&addr, sizeof(addr));
+	ASSERT_EQ(0, err);
+}
+
+FIXTURE_TEARDOWN(unix_sock)
+{
+	if (variant->socket_type == SOCK_STREAM ||
+	    variant->socket_type == SOCK_SEQPACKET)
+		close(self->child);
+
+	close(self->client);
+	close(self->server);
+	remove_socket_file();
+}
+
+/* Test 1: peer closes normally */
+TEST_F(unix_sock, eof)
+{
+	char buf[16] = {};
+	ssize_t n;
+
+	if (variant->socket_type == SOCK_STREAM ||
+	    variant->socket_type == SOCK_SEQPACKET) {
+		self->child = accept(self->server, NULL, NULL);
+		ASSERT_LT(-1, self->child);
+
+		close(self->child);
+	} else {
+		close(self->server);
+	}
+
+	n = recv(self->client, buf, sizeof(buf), 0);
+
+	if (variant->socket_type == SOCK_STREAM ||
+	    variant->socket_type == SOCK_SEQPACKET) {
+		ASSERT_EQ(0, n);
+	} else {
+		ASSERT_EQ(-1, n);
+		ASSERT_EQ(EAGAIN, errno);
+	}
+}
+
+/* Test 2: peer closes with unread data */
+TEST_F(unix_sock, reset_unread_behavior)
+{
+	char buf[16] = {};
+	ssize_t n;
+
+	/* Send data that will remain unread */
+	send(self->client, "hello", 5, 0);
+
+	if (variant->socket_type == SOCK_DGRAM) {
+		/* No real connection, just close the server */
+		close(self->server);
+	} else {
+		self->child = accept(self->server, NULL, NULL);
+		ASSERT_LT(-1, self->child);
+
+		/* Peer closes before client reads */
+		close(self->child);
+	}
+
+	n = recv(self->client, buf, sizeof(buf), 0);
+	ASSERT_EQ(-1, n);
+
+	if (variant->socket_type == SOCK_STREAM ||
+	    variant->socket_type == SOCK_SEQPACKET) {
+		ASSERT_EQ(ECONNRESET, errno);
+	} else {
+		ASSERT_EQ(EAGAIN, errno);
+	}
+}
+
+/* Test 3: closing unaccepted (embryo) server socket should reset client. */
+TEST_F(unix_sock, reset_closed_embryo)
+{
+	char buf[16] = {};
+	ssize_t n;
+
+	if (variant->socket_type == SOCK_DGRAM) {
+		snprintf(_metadata->results->reason,
+			 sizeof(_metadata->results->reason),
+			 "Test only applies to SOCK_STREAM and SOCK_SEQPACKET");
+		exit(KSFT_XFAIL);
+	}
+
+	/* Close server without accept()ing */
+	close(self->server);
+
+	n = recv(self->client, buf, sizeof(buf), 0);
+
+	ASSERT_EQ(-1, n);
+	ASSERT_EQ(ECONNRESET, errno);
+}
+
+TEST_HARNESS_MAIN
+
diff --git a/tools/testing/selftests/net/altnames.sh b/tools/testing/selftests/net/altnames.sh
new file mode 100755
index 000000000000..1ef9e4159bba
--- /dev/null
+++ b/tools/testing/selftests/net/altnames.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+lib_dir=$(dirname $0)/forwarding
+
+ALL_TESTS="altnames_test"
+NUM_NETIFS=0
+source $lib_dir/lib.sh
+
+DUMMY_DEV=dummytest
+SHORT_NAME=shortname
+LONG_NAME=someveryveryveryveryveryverylongname
+
+altnames_test()
+{
+	RET=0
+	local output
+	local name
+
+	ip link property add $DUMMY_DEV altname $SHORT_NAME
+	check_err $? "Failed to add short alternative name"
+
+	output=$(ip -j -p link show $SHORT_NAME)
+	check_err $? "Failed to do link show with short alternative name"
+
+	name=$(echo $output | jq -e -r ".[0].altnames[0]")
+	check_err $? "Failed to get short alternative name from link show JSON"
+
+	[ "$name" == "$SHORT_NAME" ]
+	check_err $? "Got unexpected short alternative name from link show JSON"
+
+	ip -j -p link show $DUMMY_DEV &>/dev/null
+	check_err $? "Failed to do link show with original name"
+
+	ip link property add $DUMMY_DEV altname $LONG_NAME
+	check_err $? "Failed to add long alternative name"
+
+	output=$(ip -j -p link show $LONG_NAME)
+	check_err $? "Failed to do link show with long alternative name"
+
+	name=$(echo $output | jq -e -r ".[0].altnames[1]")
+	check_err $? "Failed to get long alternative name from link show JSON"
+
+	[ "$name" == "$LONG_NAME" ]
+	check_err $? "Got unexpected long alternative name from link show JSON"
+
+	ip link property del $DUMMY_DEV altname $SHORT_NAME
+	check_err $? "Failed to delete short alternative name"
+
+	ip -j -p link show $SHORT_NAME &>/dev/null
+	check_fail $? "Unexpected success while trying to do link show with deleted short alternative name"
+
+	# long name is left there on purpose to be removed alongside the device
+
+	log_test "altnames test"
+}
+
+setup_prepare()
+{
+	ip link add name $DUMMY_DEV type dummy
+}
+
+cleanup()
+{
+	pre_cleanup
+	ip link del name $DUMMY_DEV
+}
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/amt.sh b/tools/testing/selftests/net/amt.sh
new file mode 100755
index 000000000000..3ef209cacb8e
--- /dev/null
+++ b/tools/testing/selftests/net/amt.sh
@@ -0,0 +1,298 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Author: Taehee Yoo <ap420073@gmail.com>
+#
+# This script evaluates the AMT driver.
+# There are four network-namespaces, LISTENER, SOURCE, GATEWAY, RELAY.
+# The role of LISTENER is to listen multicast traffic.
+# In order to do that, it send IGMP group join message.
+# The role of SOURCE is to send multicast traffic to listener.
+# The role of GATEWAY is to work Gateway role of AMT interface.
+# The role of RELAY is to work Relay role of AMT interface.
+#
+#
+#       +------------------------+
+#       |    LISTENER netns      |
+#       |                        |
+#       |  +------------------+  |
+#       |  |       l_gw       |  |
+#       |  |  192.168.0.2/24  |  |
+#       |  |  2001:db8::2/64  |  |
+#       |  +------------------+  |
+#       |            .           |
+#       +------------------------+
+#                    .
+#                    .
+#       +-----------------------------------------------------+
+#       |            .         GATEWAY netns                  |
+#       |            .                                        |
+#       |+---------------------------------------------------+|
+#       ||           .          br0                          ||
+#       || +------------------+       +------------------+   ||
+#       || |       gw_l       |       |       amtg       |   ||
+#       || |  192.168.0.1/24  |       +--------+---------+   ||
+#       || |  2001:db8::1/64  |                |             ||
+#       || +------------------+                |             ||
+#       |+-------------------------------------|-------------+|
+#       |                                      |              |
+#       |                             +--------+---------+    |
+#       |                             |     gw_relay     |    |
+#       |                             |    10.0.0.1/24   |    |
+#       |                             +------------------+    |
+#       |                                      .              |
+#       +-----------------------------------------------------+
+#                                              .
+#                                              .
+#       +-----------------------------------------------------+
+#       |                       RELAY netns    .              |
+#       |                             +------------------+    |
+#       |                             |     relay_gw     |    |
+#       |                             |    10.0.0.2/24   |    |
+#       |                             +--------+---------+    |
+#       |                                      |              |
+#       |                                      |              |
+#       |  +------------------+       +--------+---------+    |
+#       |  |     relay_src    |       |       amtr       |    |
+#       |  |   172.17.0.1/24  |       +------------------+    |
+#       |  | 2001:db8:3::1/64 |                               |
+#       |  +------------------+                               |
+#       |            .                                        |
+#       |            .                                        |
+#       +-----------------------------------------------------+
+#                    .
+#                    .
+#       +------------------------+
+#       |            .           |
+#       |  +------------------+  |
+#       |  |     src_relay    |  |
+#       |  |   172.17.0.2/24  |  |
+#       |  | 2001:db8:3::2/64 |  |
+#       |  +------------------+  |
+#       |      SOURCE netns      |
+#       +------------------------+
+#==============================================================================
+
+readonly LISTENER=$(mktemp -u listener-XXXXXXXX)
+readonly GATEWAY=$(mktemp -u gateway-XXXXXXXX)
+readonly RELAY=$(mktemp -u relay-XXXXXXXX)
+readonly SOURCE=$(mktemp -u source-XXXXXXXX)
+readonly SMCROUTEDIR="$(mktemp -d)"
+ERR=4
+err=0
+
+exit_cleanup()
+{
+	for ns in "$@"; do
+		ip netns delete "${ns}" 2>/dev/null || true
+	done
+	if [ -f "$SMCROUTEDIR/amt.pid" ]; then
+		smcpid=$(< $SMCROUTEDIR/amt.pid)
+		kill $smcpid
+	fi
+	rm -rf $SMCROUTEDIR
+
+	exit $ERR
+}
+
+create_namespaces()
+{
+	ip netns add "${LISTENER}" || exit_cleanup
+	ip netns add "${GATEWAY}" || exit_cleanup "${LISTENER}"
+	ip netns add "${RELAY}" || exit_cleanup "${LISTENER}" "${GATEWAY}"
+	ip netns add "${SOURCE}" || exit_cleanup "${LISTENER}" "${GATEWAY}" \
+		"${RELAY}"
+}
+
+# The trap function handler
+#
+exit_cleanup_all()
+{
+	exit_cleanup "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}"
+}
+
+setup_interface()
+{
+	for ns in "${LISTENER}" "${GATEWAY}" "${RELAY}" "${SOURCE}"; do
+		ip -netns "${ns}" link set dev lo up
+	done;
+
+	ip link add l_gw type veth peer name gw_l
+	ip link add gw_relay type veth peer name relay_gw
+	ip link add relay_src type veth peer name src_relay
+
+	ip link set l_gw netns "${LISTENER}" up
+	ip link set gw_l netns "${GATEWAY}" up
+	ip link set gw_relay netns "${GATEWAY}" up
+	ip link set relay_gw netns "${RELAY}" up
+	ip link set relay_src netns "${RELAY}" up
+	ip link set src_relay netns "${SOURCE}" up mtu 1400
+
+	ip netns exec "${LISTENER}" ip a a 192.168.0.2/24 dev l_gw
+	ip netns exec "${LISTENER}" ip r a default via 192.168.0.1 dev l_gw
+	ip netns exec "${LISTENER}" ip a a 2001:db8::2/64 dev l_gw
+	ip netns exec "${LISTENER}" ip r a default via 2001:db8::1 dev l_gw
+	ip netns exec "${LISTENER}" ip a a 239.0.0.1/32 dev l_gw autojoin
+	ip netns exec "${LISTENER}" ip a a ff0e::5:6/128 dev l_gw autojoin
+
+	ip netns exec "${GATEWAY}" ip a a 192.168.0.1/24 dev gw_l
+	ip netns exec "${GATEWAY}" ip a a 2001:db8::1/64 dev gw_l
+	ip netns exec "${GATEWAY}" ip a a 10.0.0.1/24 dev gw_relay
+	ip netns exec "${GATEWAY}" ip link add br0 type bridge
+	ip netns exec "${GATEWAY}" ip link set br0 up
+	ip netns exec "${GATEWAY}" ip link set gw_l master br0
+	ip netns exec "${GATEWAY}" ip link set gw_l up
+	ip netns exec "${GATEWAY}" ip link add amtg master br0 type amt \
+		mode gateway local 10.0.0.1 discovery 10.0.0.2 dev gw_relay \
+		gateway_port 2268 relay_port 2268
+	ip netns exec "${RELAY}" ip a a 10.0.0.2/24 dev relay_gw
+	ip netns exec "${RELAY}" ip link add amtr type amt mode relay \
+		local 10.0.0.2 dev relay_gw relay_port 2268 max_tunnels 4
+	ip netns exec "${RELAY}" ip a a 172.17.0.1/24 dev relay_src
+	ip netns exec "${RELAY}" ip a a 2001:db8:3::1/64 dev relay_src
+	ip netns exec "${SOURCE}" ip a a 172.17.0.2/24 dev src_relay
+	ip netns exec "${SOURCE}" ip a a 2001:db8:3::2/64 dev src_relay
+	ip netns exec "${SOURCE}" ip r a default via 172.17.0.1 dev src_relay
+	ip netns exec "${SOURCE}" ip r a default via 2001:db8:3::1 dev src_relay
+	ip netns exec "${RELAY}" ip link set amtr up
+	ip netns exec "${GATEWAY}" ip link set amtg up
+}
+
+setup_sysctl()
+{
+	ip netns exec "${RELAY}" sysctl net.ipv4.ip_forward=1 -w -q
+}
+
+setup_iptables()
+{
+	ip netns exec "${RELAY}" iptables -t mangle -I PREROUTING \
+		-d 239.0.0.1 -j TTL --ttl-set 2
+	ip netns exec "${RELAY}" ip6tables -t mangle -I PREROUTING \
+		-j HL --hl-set 2
+}
+
+setup_mcast_routing()
+{
+	ip netns exec "${RELAY}" smcrouted -P $SMCROUTEDIR/amt.pid
+	ip netns exec "${RELAY}" smcroutectl a relay_src \
+		172.17.0.2 239.0.0.1 amtr
+	ip netns exec "${RELAY}" smcroutectl a relay_src \
+		2001:db8:3::2 ff0e::5:6 amtr
+}
+
+test_remote_ip()
+{
+	REMOTE=$(ip netns exec "${GATEWAY}" \
+		ip -d -j link show amtg | jq .[0].linkinfo.info_data.remote)
+	if [ $REMOTE == "\"10.0.0.2\"" ]; then
+		printf "TEST: %-60s  [ OK ]\n" "amt discovery"
+	else
+		printf "TEST: %-60s  [FAIL]\n" "amt discovery"
+		ERR=1
+	fi
+}
+
+send_mcast_torture4()
+{
+	for i in `seq 10`; do
+		ip netns exec "${SOURCE}" bash -c \
+		   'cat /dev/urandom | head -c 100M | nc -w 1 -u 239.0.0.1 4001'
+		echo -n "."
+	done
+}
+
+
+send_mcast_torture6()
+{
+	for i in `seq 10`; do
+		ip netns exec "${SOURCE}" bash -c \
+		   'cat /dev/urandom | head -c 100M | nc -w 1 -u ff0e::5:6 6001'
+		echo -n "."
+	done
+}
+
+check_features()
+{
+        ip link help 2>&1 | grep -q amt
+        if [ $? -ne 0 ]; then
+                echo "Missing amt support in iproute2" >&2
+                exit_cleanup
+        fi
+}
+
+test_ipv4_forward()
+{
+	RESULT4=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP4-LISTEN:4000,readbytes=128 || true)
+	if echo "$RESULT4" | grep -q "172.17.0.2"; then
+		printf "TEST: %-60s  [ OK ]\n" "IPv4 amt multicast forwarding"
+		exit 0
+	else
+		printf "TEST: %-60s  [FAIL]\n" "IPv4 amt multicast forwarding"
+		exit 1
+	fi
+}
+
+test_ipv6_forward()
+{
+	RESULT6=$(ip netns exec "${LISTENER}" timeout 15 socat - UDP6-LISTEN:6000,readbytes=128 || true)
+	if echo "$RESULT6" | grep -q "2001:db8:3::2"; then
+		printf "TEST: %-60s  [ OK ]\n" "IPv6 amt multicast forwarding"
+		exit 0
+	else
+		printf "TEST: %-60s  [FAIL]\n" "IPv6 amt multicast forwarding"
+		exit 1
+	fi
+}
+
+send_mcast4()
+{
+	sleep 2
+	ip netns exec "${SOURCE}" bash -c \
+		'printf "%s %128s" 172.17.0.2 | nc -w 1 -u 239.0.0.1 4000' &
+}
+
+send_mcast6()
+{
+	sleep 2
+	ip netns exec "${SOURCE}" bash -c \
+		'printf "%s %128s" 2001:db8:3::2 | nc -w 1 -u ff0e::5:6 6000' &
+}
+
+check_features
+
+create_namespaces
+
+set -e
+trap exit_cleanup_all EXIT
+
+setup_interface
+setup_sysctl
+setup_iptables
+setup_mcast_routing
+test_remote_ip
+test_ipv4_forward &
+pid=$!
+send_mcast4
+wait $pid || err=$?
+if [ $err -eq 1 ]; then
+	ERR=1
+fi
+test_ipv6_forward &
+pid=$!
+send_mcast6
+wait $pid || err=$?
+if [ $err -eq 1 ]; then
+	ERR=1
+fi
+printf "TEST: %-50s" "IPv4 amt traffic forwarding torture"
+send_mcast_torture4
+printf "  [ OK ]\n"
+printf "TEST: %-50s" "IPv6 amt traffic forwarding torture"
+send_mcast_torture6
+printf "  [ OK ]\n"
+sleep 5
+if [ "${ERR}" -eq 1 ]; then
+        echo "Some tests failed." >&2
+else
+        ERR=0
+fi
diff --git a/tools/testing/selftests/net/arp_ndisc_evict_nocarrier.sh b/tools/testing/selftests/net/arp_ndisc_evict_nocarrier.sh
new file mode 100755
index 000000000000..00758f00efbf
--- /dev/null
+++ b/tools/testing/selftests/net/arp_ndisc_evict_nocarrier.sh
@@ -0,0 +1,213 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Tests sysctl options {arp,ndisc}_evict_nocarrier={0,1}
+#
+# Create a veth pair and set IPs/routes on both. Then ping to establish
+# an entry in the ARP/ND table. Depending on the test set sysctl option to
+# 1 or 0. Set remote veth down which will cause local veth to go into a no
+# carrier state. Depending on the test check the ARP/ND table:
+#
+# {arp,ndisc}_evict_nocarrier=1 should contain no ARP/ND after no carrier
+# {arp,ndisc}_evict_nocarrer=0 should still contain the single ARP/ND entry
+#
+
+source lib.sh
+
+readonly V4_ADDR0=10.0.10.1
+readonly V4_ADDR1=10.0.10.2
+readonly V6_ADDR0=2001:db8:91::1
+readonly V6_ADDR1=2001:db8:91::2
+nsid=100
+ret=0
+
+cleanup_v6()
+{
+    cleanup_ns ${me} ${peer}
+
+    sysctl -w net.ipv6.conf.veth1.ndisc_evict_nocarrier=1 >/dev/null 2>&1
+    sysctl -w net.ipv6.conf.all.ndisc_evict_nocarrier=1 >/dev/null 2>&1
+}
+
+setup_v6() {
+    setup_ns me peer
+
+    IP="ip -netns ${me}"
+
+    $IP li add veth1 type veth peer name veth2
+    $IP li set veth1 up
+    $IP -6 addr add $V6_ADDR0/64 dev veth1 nodad
+    $IP li set veth2 netns ${peer} up
+    ip -netns ${peer} -6 addr add $V6_ADDR1/64 dev veth2 nodad
+
+    ip netns exec ${me} sysctl -w $1 >/dev/null 2>&1
+
+    # Establish an ND cache entry
+    ip netns exec ${me} ping -6 -c1 -Iveth1 $V6_ADDR1 >/dev/null 2>&1
+    # Should have the veth1 entry in ND table
+    ip netns exec ${me} ip -6 neigh get $V6_ADDR1 dev veth1 >/dev/null 2>&1
+    if [ $? -ne 0 ]; then
+        cleanup_v6
+        echo "failed"
+        exit 1
+    fi
+
+    # Set veth2 down, which will put veth1 in NOCARRIER state
+    ip netns exec ${peer} ip link set veth2 down
+}
+
+setup_v4() {
+    setup_ns PEER_NS
+    ip link add name veth0 type veth peer name veth1
+    ip link set dev veth0 up
+    ip link set dev veth1 netns "${PEER_NS}"
+    ip netns exec "${PEER_NS}" ip link set dev veth1 up
+    ip addr add $V4_ADDR0/24 dev veth0
+    ip netns exec "${PEER_NS}" ip addr add $V4_ADDR1/24 dev veth1
+    ip netns exec ${PEER_NS} ip route add default via $V4_ADDR1 dev veth1
+    ip route add default via $V4_ADDR0 dev veth0
+
+    sysctl -w "$1" >/dev/null 2>&1
+
+    # Establish an ARP cache entry
+    ping -c1 -I veth0 $V4_ADDR1 -q >/dev/null 2>&1
+    # Should have the veth1 entry in ARP table
+    ip neigh get $V4_ADDR1 dev veth0 >/dev/null 2>&1
+    if [ $? -ne 0 ]; then
+        cleanup_v4
+        echo "failed; is the system using MACAddressPolicy=persistent ?"
+        exit 1
+    fi
+
+    # Set veth1 down, which will put veth0 in NOCARRIER state
+    ip netns exec "${PEER_NS}" ip link set veth1 down
+}
+
+cleanup_v4() {
+    ip neigh flush dev veth0
+    ip link del veth0
+    cleanup_ns $PEER_NS
+
+    sysctl -w net.ipv4.conf.veth0.arp_evict_nocarrier=1 >/dev/null 2>&1
+    sysctl -w net.ipv4.conf.all.arp_evict_nocarrier=1 >/dev/null 2>&1
+}
+
+# Run test when arp_evict_nocarrier = 1 (default).
+run_arp_evict_nocarrier_enabled() {
+    echo "run arp_evict_nocarrier=1 test"
+    setup_v4 "net.ipv4.conf.veth0.arp_evict_nocarrier=1"
+
+    # ARP table should be empty
+    ip neigh get $V4_ADDR1 dev veth0 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "failed"
+        ret=1
+    else
+        echo "ok"
+    fi
+
+    cleanup_v4
+}
+
+# Run test when arp_evict_nocarrier = 0
+run_arp_evict_nocarrier_disabled() {
+    echo "run arp_evict_nocarrier=0 test"
+    setup_v4 "net.ipv4.conf.veth0.arp_evict_nocarrier=0"
+
+    # ARP table should still contain the entry
+    ip neigh get $V4_ADDR1 dev veth0 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "ok"
+    else
+        echo "failed"
+        ret=1
+    fi
+
+    cleanup_v4
+}
+
+run_arp_evict_nocarrier_disabled_all() {
+    echo "run all.arp_evict_nocarrier=0 test"
+    setup_v4 "net.ipv4.conf.all.arp_evict_nocarrier=0"
+
+    # ARP table should still contain the entry
+    ip neigh get $V4_ADDR1 dev veth0 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "ok"
+    else
+        echo "failed"
+    fi
+
+    cleanup_v4
+}
+
+run_ndisc_evict_nocarrier_enabled() {
+    echo "run ndisc_evict_nocarrier=1 test"
+
+    setup_v6 "net.ipv6.conf.veth1.ndisc_evict_nocarrier=1"
+
+    ip netns exec ${me} ip -6 neigh get $V6_ADDR1 dev veth1 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "failed"
+        ret=1
+    else
+        echo "ok"
+    fi
+
+    cleanup_v6
+}
+
+run_ndisc_evict_nocarrier_disabled() {
+    echo "run ndisc_evict_nocarrier=0 test"
+
+    setup_v6 "net.ipv6.conf.veth1.ndisc_evict_nocarrier=0"
+
+    ip netns exec ${me} ip -6 neigh get $V6_ADDR1 dev veth1 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "ok"
+    else
+        echo "failed"
+        ret=1
+    fi
+
+    cleanup_v6
+}
+
+run_ndisc_evict_nocarrier_disabled_all() {
+    echo "run all.ndisc_evict_nocarrier=0 test"
+
+    setup_v6 "net.ipv6.conf.all.ndisc_evict_nocarrier=0"
+
+    ip netns exec ${me} ip -6 neigh get $V6_ADDR1 dev veth1 >/dev/null 2>&1
+
+    if [ $? -eq 0 ];then
+        echo "ok"
+    else
+        echo "failed"
+        ret=1
+    fi
+
+    cleanup_v6
+}
+
+run_all_tests() {
+    run_arp_evict_nocarrier_enabled
+    run_arp_evict_nocarrier_disabled
+    run_arp_evict_nocarrier_disabled_all
+    run_ndisc_evict_nocarrier_enabled
+    run_ndisc_evict_nocarrier_disabled
+    run_ndisc_evict_nocarrier_disabled_all
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+run_all_tests
+exit $ret
diff --git a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
new file mode 100755
index 000000000000..eef5cbf6eecc
--- /dev/null
+++ b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
@@ -0,0 +1,283 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# 2 namespaces: one host and one router. Use arping from the host to send a
+# garp to the router. Router accepts or ignores based on its arp_accept
+# or accept_untracked_na configuration.
+
+source lib.sh
+
+TESTS="arp ndisc"
+
+ROUTER_INTF="veth-router"
+ROUTER_ADDR="10.0.10.1"
+ROUTER_ADDR_V6="2001:db8:abcd:0012::1"
+
+HOST_INTF="veth-host"
+HOST_ADDR="10.0.10.2"
+HOST_ADDR_V6="2001:db8:abcd:0012::2"
+
+SUBNET_WIDTH=24
+PREFIX_WIDTH_V6=64
+
+cleanup() {
+	cleanup_ns ${HOST_NS} ${ROUTER_NS}
+}
+
+cleanup_v6() {
+	cleanup_ns ${HOST_NS_V6} ${ROUTER_NS_V6}
+}
+
+setup() {
+	set -e
+	local arp_accept=$1
+
+	# Set up two namespaces
+	setup_ns HOST_NS ROUTER_NS
+
+	# Set up interfaces veth0 and veth1, which are pairs in separate
+	# namespaces. veth0 is veth-router, veth1 is veth-host.
+	# first, set up the inteface's link to the namespace
+	# then, set the interface "up"
+	ip netns exec ${ROUTER_NS} ip link add name ${ROUTER_INTF} \
+		type veth peer name ${HOST_INTF}
+
+	ip netns exec ${ROUTER_NS} ip link set dev ${ROUTER_INTF} up
+	ip netns exec ${ROUTER_NS} ip link set dev ${HOST_INTF} netns ${HOST_NS}
+
+	ip netns exec ${HOST_NS} ip link set dev ${HOST_INTF} up
+	ip netns exec ${ROUTER_NS} ip addr add ${ROUTER_ADDR}/${SUBNET_WIDTH} \
+		dev ${ROUTER_INTF}
+
+	ip netns exec ${HOST_NS} ip addr add ${HOST_ADDR}/${SUBNET_WIDTH} \
+		dev ${HOST_INTF}
+	ip netns exec ${HOST_NS} ip route add default via ${HOST_ADDR} \
+		dev ${HOST_INTF}
+	ip netns exec ${ROUTER_NS} ip route add default via ${ROUTER_ADDR} \
+		dev ${ROUTER_INTF}
+
+	ROUTER_CONF=net.ipv4.conf.${ROUTER_INTF}
+	ip netns exec ${ROUTER_NS} sysctl -w \
+		${ROUTER_CONF}.arp_accept=${arp_accept} >/dev/null 2>&1
+	set +e
+}
+
+setup_v6() {
+	set -e
+	local accept_untracked_na=$1
+
+	# Set up two namespaces
+	setup_ns HOST_NS_V6 ROUTER_NS_V6
+
+	# Set up interfaces veth0 and veth1, which are pairs in separate
+	# namespaces. veth0 is veth-router, veth1 is veth-host.
+	# first, set up the inteface's link to the namespace
+	# then, set the interface "up"
+	ip -n ${ROUTER_NS_V6} link add name ${ROUTER_INTF} \
+		type veth peer name ${HOST_INTF} netns ${HOST_NS_V6}
+
+	# Add tc rule to filter out host na message
+	tc -n ${ROUTER_NS_V6} qdisc add dev ${ROUTER_INTF} clsact
+	tc -n ${ROUTER_NS_V6} filter add dev ${ROUTER_INTF} \
+		ingress protocol ipv6 pref 1 handle 101 \
+		flower src_ip ${HOST_ADDR_V6} ip_proto icmpv6 type 136 skip_hw action pass
+
+	HOST_CONF=net.ipv6.conf.${HOST_INTF}
+	ip netns exec ${HOST_NS_V6} sysctl -qw ${HOST_CONF}.ndisc_notify=1
+	ip netns exec ${HOST_NS_V6} sysctl -qw ${HOST_CONF}.disable_ipv6=0
+	ROUTER_CONF=net.ipv6.conf.${ROUTER_INTF}
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.forwarding=1 >/dev/null 2>&1
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.drop_unsolicited_na=0 >/dev/null 2>&1
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.accept_untracked_na=${accept_untracked_na} \
+		>/dev/null 2>&1
+
+	ip -n ${ROUTER_NS_V6} link set dev ${ROUTER_INTF} up
+	ip -n ${HOST_NS_V6} link set dev ${HOST_INTF} up
+	ip -n ${ROUTER_NS_V6} addr add ${ROUTER_ADDR_V6}/${PREFIX_WIDTH_V6} \
+		dev ${ROUTER_INTF} nodad
+	ip -n ${HOST_NS_V6} addr add ${HOST_ADDR_V6}/${PREFIX_WIDTH_V6} \
+		dev ${HOST_INTF}
+	set +e
+}
+
+verify_arp() {
+	local arp_accept=$1
+	local same_subnet=$2
+
+	neigh_show_output=$(ip netns exec ${ROUTER_NS} ip neigh get \
+		${HOST_ADDR} dev ${ROUTER_INTF} 2>/dev/null)
+
+	if [ ${arp_accept} -eq 1 ]; then
+		# Neighbor entries expected
+		[[ ${neigh_show_output} ]]
+	elif [ ${arp_accept} -eq 2 ]; then
+		if [ ${same_subnet} -eq 1 ]; then
+			# Neighbor entries expected
+			[[ ${neigh_show_output} ]]
+		else
+			[[ -z "${neigh_show_output}" ]]
+		fi
+	else
+		[[ -z "${neigh_show_output}" ]]
+	fi
+ }
+
+arp_test_gratuitous() {
+	set -e
+	local arp_accept=$1
+	local same_subnet=$2
+
+	if [ ${arp_accept} -eq 2 ]; then
+		test_msg=("test_arp: "
+			  "accept_arp=$1 "
+			  "same_subnet=$2")
+		if [ ${same_subnet} -eq 0 ]; then
+			HOST_ADDR=10.0.11.3
+		else
+			HOST_ADDR=10.0.10.3
+		fi
+	else
+		test_msg=("test_arp: "
+			  "accept_arp=$1")
+	fi
+	# Supply arp_accept option to set up which sets it in sysctl
+	setup ${arp_accept}
+	ip netns exec ${HOST_NS} arping -A -I ${HOST_INTF} -U ${HOST_ADDR} -c1 2>&1 >/dev/null
+
+	if verify_arp $1 $2; then
+		printf "    TEST: %-60s  [ OK ]\n" "${test_msg[*]}"
+	else
+		printf "    TEST: %-60s  [FAIL]\n" "${test_msg[*]}"
+	fi
+	cleanup
+	set +e
+}
+
+arp_test_gratuitous_combinations() {
+	arp_test_gratuitous 0
+	arp_test_gratuitous 1
+	arp_test_gratuitous 2 0 # Second entry indicates subnet or not
+	arp_test_gratuitous 2 1
+}
+
+verify_ndisc() {
+	local accept_untracked_na=$1
+	local same_subnet=$2
+
+	neigh_show_output=$(ip -6 -netns ${ROUTER_NS_V6} neigh show \
+		to ${HOST_ADDR_V6} dev ${ROUTER_INTF} nud stale)
+
+	if [ ${accept_untracked_na} -eq 1 ]; then
+		# Neighbour entry expected to be present
+		[[ ${neigh_show_output} ]]
+	elif [ ${accept_untracked_na} -eq 2 ]; then
+		if [ ${same_subnet} -eq 1 ]; then
+			[[ ${neigh_show_output} ]]
+		else
+			[[ -z "${neigh_show_output}" ]]
+		fi
+	else
+		# Neighbour entry expected to be absent for all other cases
+		[[ -z "${neigh_show_output}" ]]
+	fi
+}
+
+ndisc_test_untracked_advertisements() {
+	set -e
+	test_msg=("test_ndisc: "
+		  "accept_untracked_na=$1")
+
+	local accept_untracked_na=$1
+	local same_subnet=$2
+	if [ ${accept_untracked_na} -eq 2 ]; then
+		test_msg=("test_ndisc: "
+			  "accept_untracked_na=$1 "
+			  "same_subnet=$2")
+		if [ ${same_subnet} -eq 0 ]; then
+			# Not same subnet
+			HOST_ADDR_V6=2000:db8:abcd:0013::4
+		else
+			HOST_ADDR_V6=2001:db8:abcd:0012::3
+		fi
+	fi
+	setup_v6 $1
+	slowwait_for_counter 15 1 \
+		tc_rule_handle_stats_get "dev ${ROUTER_INTF} ingress" 101 ".packets" "-n ${ROUTER_NS_V6}"
+
+	if verify_ndisc $1 $2; then
+		printf "    TEST: %-60s  [ OK ]\n" "${test_msg[*]}"
+	else
+		printf "    TEST: %-60s  [FAIL]\n" "${test_msg[*]}"
+	fi
+
+	cleanup_v6
+	set +e
+}
+
+ndisc_test_untracked_combinations() {
+	ndisc_test_untracked_advertisements 0
+	ndisc_test_untracked_advertisements 1
+	ndisc_test_untracked_advertisements 2 0
+	ndisc_test_untracked_advertisements 2 1
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+	-t <test>       Test(s) to run (default: all)
+			(options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tcpdump)" ]; then
+	echo "SKIP: Could not run test without tcpdump tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v arping)" ]; then
+	echo "SKIP: Could not run test without arping tool"
+	exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+cleanup_v6 &> /dev/null
+
+for t in $TESTS
+do
+	case $t in
+	arp_test_gratuitous_combinations|arp) arp_test_gratuitous_combinations;;
+	ndisc_test_untracked_combinations|ndisc) \
+		ndisc_test_untracked_combinations;;
+	help) echo "Test names: $TESTS"; exit 0;;
+esac
+done
diff --git a/tools/testing/selftests/net/bareudp.sh b/tools/testing/selftests/net/bareudp.sh
new file mode 100755
index 000000000000..d9e5b967f815
--- /dev/null
+++ b/tools/testing/selftests/net/bareudp.sh
@@ -0,0 +1,511 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test various bareudp tunnel configurations.
+#
+# The bareudp module allows to tunnel network protocols like IP or MPLS over
+# UDP, without adding any intermediate header. This scripts tests several
+# configurations of bareudp (using IPv4 or IPv6 as underlay and transporting
+# IPv4, IPv6 or MPLS packets on the overlay).
+#
+# Network topology:
+#
+#   * A chain of 4 network namespaces, connected with veth pairs. Each veth
+#     is assigned an IPv4 and an IPv6 address. A host-route allows a veth to
+#     join its peer.
+#
+#   * NS0 and NS3 are at the extremities of the chain. They have additional
+#     IPv4 and IPv6 addresses on their loopback device. Routes are added in NS0
+#     and NS3, so that they can communicate using these overlay IP addresses.
+#     For IPv4 and IPv6 reachability tests, the route simply sets the peer's
+#     veth address as gateway. For MPLS reachability tests, an MPLS header is
+#     also pushed before the IP header.
+#
+#   * NS1 and NS2 are the intermediate namespaces. They use a bareudp device to
+#     encapsulate the traffic into UDP.
+#
+# +-----------------------------------------------------------------------+
+# |                                  NS0                                  |
+# |                                                                       |
+# |   lo:                                                                 |
+# |      * IPv4 address: 192.0.2.100/32                                   |
+# |      * IPv6 address: 2001:db8::100/128                                |
+# |      * IPv6 address: 2001:db8::200/128                                |
+# |      * IPv4 route: 192.0.2.103/32 reachable via 192.0.2.11            |
+# |      * IPv6 route: 2001:db8::103/128 reachable via 2001:db8::11       |
+# |      * IPv6 route: 2001:db8::203/128 reachable via 2001:db8::11       |
+# |                    (encapsulated with MPLS label 203)                 |
+# |                                                                       |
+# |   veth01:                                                             |
+# |   ^  * IPv4 address: 192.0.2.10, peer 192.0.2.11/32                   |
+# |   |  * IPv6 address: 2001:db8::10, peer 2001:db8::11/128              |
+# |   |                                                                   |
+# +---+-------------------------------------------------------------------+
+#     |
+#     | Traffic type: IP or MPLS (depending on test)
+#     |
+# +---+-------------------------------------------------------------------+
+# |   |                              NS1                                  |
+# |   |                                                                   |
+# |   v                                                                   |
+# |   veth10:                                                             |
+# |      * IPv4 address: 192.0.2.11, peer 192.0.2.10/32                   |
+# |      * IPv6 address: 2001:db8::11, peer 2001:db8::10/128              |
+# |                                                                       |
+# |   bareudp_ns1:                                                        |
+# |      * Encapsulate IP or MPLS packets received on veth10 into UDP     |
+# |        and send the resulting packets through veth12.                 |
+# |      * Decapsulate bareudp packets (either IP or MPLS, over UDP)      |
+# |        received on veth12 and send the inner packets through veth10.  |
+# |                                                                       |
+# |   veth12:                                                             |
+# |   ^  * IPv4 address: 192.0.2.21, peer 192.0.2.22/32                   |
+# |   |  * IPv6 address: 2001:db8::21, peer 2001:db8::22/128              |
+# |   |                                                                   |
+# +---+-------------------------------------------------------------------+
+#     |
+#     | Traffic type: IP or MPLS (depending on test), over UDP
+#     |
+# +---+-------------------------------------------------------------------+
+# |   |                              NS2                                  |
+# |   |                                                                   |
+# |   v                                                                   |
+# |   veth21:                                                             |
+# |      * IPv4 address: 192.0.2.22, peer 192.0.2.21/32                   |
+# |      * IPv6 address: 2001:db8::22, peer 2001:db8::21/128              |
+# |                                                                       |
+# |   bareudp_ns2:                                                        |
+# |      * Decapsulate bareudp packets (either IP or MPLS, over UDP)      |
+# |        received on veth21 and send the inner packets through veth23.  |
+# |      * Encapsulate IP or MPLS packets received on veth23 into UDP     |
+# |        and send the resulting packets through veth21.                 |
+# |                                                                       |
+# |   veth23:                                                             |
+# |   ^  * IPv4 address: 192.0.2.32, peer 192.0.2.33/32                   |
+# |   |  * IPv6 address: 2001:db8::32, peer 2001:db8::33/128              |
+# |   |                                                                   |
+# +---+-------------------------------------------------------------------+
+#     |
+#     | Traffic type: IP or MPLS (depending on test)
+#     |
+# +---+-------------------------------------------------------------------+
+# |   |                              NS3                                  |
+# |   v                                                                   |
+# |   veth32:                                                             |
+# |      * IPv4 address: 192.0.2.33, peer 192.0.2.32/32                   |
+# |      * IPv6 address: 2001:db8::33, peer 2001:db8::32/128              |
+# |                                                                       |
+# |   lo:                                                                 |
+# |      * IPv4 address: 192.0.2.103/32                                   |
+# |      * IPv6 address: 2001:db8::103/128                                |
+# |      * IPv6 address: 2001:db8::203/128                                |
+# |      * IPv4 route: 192.0.2.100/32 reachable via 192.0.2.32            |
+# |      * IPv6 route: 2001:db8::100/128 reachable via 2001:db8::32       |
+# |      * IPv6 route: 2001:db8::200/128 reachable via 2001:db8::32       |
+# |                    (encapsulated with MPLS label 200)                 |
+# |                                                                       |
+# +-----------------------------------------------------------------------+
+
+. ./lib.sh
+
+ERR=4 # Return 4 by default, which is the SKIP code for kselftest
+PING6="ping"
+PAUSE_ON_FAIL="no"
+
+# Exit the script after having removed the network namespaces it created
+exit_cleanup()
+{
+	cleanup_all_ns
+
+	if [ "${ERR}" -eq 4 ]; then
+		echo "Error: Setting up the testing environment failed." >&2
+	fi
+
+	exit "${ERR}"
+}
+
+# Create the four network namespaces used by the script (NS0, NS1, NS2 and NS3)
+#
+# New namespaces are cleaned up manually in case of error, to ensure that only
+# namespaces created by this script are deleted.
+create_namespaces()
+{
+	setup_ns NS0 NS1 NS2 NS3 || exit_cleanup
+}
+
+# Configure a network interface using a host route
+#
+# Parameters
+#
+#   * $1: the netns the network interface resides in,
+#   * $2: the network interface name,
+#   * $3: the local IPv4 address to assign to this interface,
+#   * $4: the IPv4 address of the remote network interface,
+#   * $5: the local IPv6 address to assign to this interface,
+#   * $6: the IPv6 address of the remote network interface.
+#
+iface_config()
+{
+	local NS="${1}"; readonly NS
+	local DEV="${2}"; readonly DEV
+	local LOCAL_IP4="${3}"; readonly LOCAL_IP4
+	local PEER_IP4="${4}"; readonly PEER_IP4
+	local LOCAL_IP6="${5}"; readonly LOCAL_IP6
+	local PEER_IP6="${6}"; readonly PEER_IP6
+
+	ip -netns "${NS}" link set dev "${DEV}" up
+	ip -netns "${NS}" address add dev "${DEV}" "${LOCAL_IP4}" peer "${PEER_IP4}"
+	ip -netns "${NS}" address add dev "${DEV}" "${LOCAL_IP6}" peer "${PEER_IP6}" nodad
+}
+
+# Create base networking topology:
+#
+#   * set up the loopback device in all network namespaces (NS0..NS3),
+#   * set up a veth pair to connect each netns in sequence (NS0 with NS1,
+#     NS1 with NS2, etc.),
+#   * add and IPv4 and an IPv6 address on each veth interface,
+#   * prepare the ingress qdiscs in the intermediate namespaces.
+#
+setup_underlay()
+{
+	ip link add name veth01 netns "${NS0}" type veth peer name veth10 netns "${NS1}"
+	ip link add name veth12 netns "${NS1}" type veth peer name veth21 netns "${NS2}"
+	ip link add name veth23 netns "${NS2}" type veth peer name veth32 netns "${NS3}"
+	iface_config "${NS0}" veth01 192.0.2.10 192.0.2.11/32 2001:db8::10 2001:db8::11/128
+	iface_config "${NS1}" veth10 192.0.2.11 192.0.2.10/32 2001:db8::11 2001:db8::10/128
+	iface_config "${NS1}" veth12 192.0.2.21 192.0.2.22/32 2001:db8::21 2001:db8::22/128
+	iface_config "${NS2}" veth21 192.0.2.22 192.0.2.21/32 2001:db8::22 2001:db8::21/128
+	iface_config "${NS2}" veth23 192.0.2.32 192.0.2.33/32 2001:db8::32 2001:db8::33/128
+	iface_config "${NS3}" veth32 192.0.2.33 192.0.2.32/32 2001:db8::33 2001:db8::32/128
+
+	tc -netns "${NS1}" qdisc add dev veth10 ingress
+	tc -netns "${NS2}" qdisc add dev veth23 ingress
+}
+
+# Set up the IPv4, IPv6 and MPLS overlays.
+#
+# Configuration is similar for all protocols:
+#
+#   * add an overlay IP address on the loopback interface of each edge
+#     namespace,
+#   * route these IP addresses via the intermediate namespaces (for the MPLS
+#     tests, this is also where MPLS encapsulation is done),
+#   * add routes for these IP addresses (or MPLS labels) in the intermediate
+#     namespaces.
+#
+# The bareudp encapsulation isn't configured in setup_overlay_*(). That will be
+# done just before running the reachability tests.
+
+setup_overlay_ipv4()
+{
+	# Add the overlay IP addresses and route them through the veth devices
+	ip -netns "${NS0}" address add 192.0.2.100/32 dev lo
+	ip -netns "${NS3}" address add 192.0.2.103/32 dev lo
+	ip -netns "${NS0}" route add 192.0.2.103/32 src 192.0.2.100 via 192.0.2.11
+	ip -netns "${NS3}" route add 192.0.2.100/32 src 192.0.2.103 via 192.0.2.32
+
+	# Route the overlay addresses in the intermediate namespaces
+	# (used after bareudp decapsulation)
+	ip netns exec "${NS1}" sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec "${NS2}" sysctl -qw net.ipv4.ip_forward=1
+	ip -netns "${NS1}" route add 192.0.2.100/32 via 192.0.2.10
+	ip -netns "${NS2}" route add 192.0.2.103/32 via 192.0.2.33
+}
+
+setup_overlay_ipv6()
+{
+	# Add the overlay IP addresses and route them through the veth devices
+	ip -netns "${NS0}" address add 2001:db8::100/128 dev lo
+	ip -netns "${NS3}" address add 2001:db8::103/128 dev lo
+	ip -netns "${NS0}" route add 2001:db8::103/128 src 2001:db8::100 via 2001:db8::11
+	ip -netns "${NS3}" route add 2001:db8::100/128 src 2001:db8::103 via 2001:db8::32
+
+	# Route the overlay addresses in the intermediate namespaces
+	# (used after bareudp decapsulation)
+	ip netns exec "${NS1}" sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec "${NS2}" sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip -netns "${NS1}" route add 2001:db8::100/128 via 2001:db8::10
+	ip -netns "${NS2}" route add 2001:db8::103/128 via 2001:db8::33
+}
+
+setup_overlay_mpls()
+{
+	# Add specific overlay IP addresses, routed over MPLS
+	ip -netns "${NS0}" address add 2001:db8::200/128 dev lo
+	ip -netns "${NS3}" address add 2001:db8::203/128 dev lo
+	ip -netns "${NS0}" route add 2001:db8::203/128 src 2001:db8::200 encap mpls 203 via 2001:db8::11
+	ip -netns "${NS3}" route add 2001:db8::200/128 src 2001:db8::203 encap mpls 200 via 2001:db8::32
+
+	# Route the MPLS packets in the intermediate namespaces
+	# (used after bareudp decapsulation)
+	ip netns exec "${NS1}" sysctl -qw net.mpls.platform_labels=256
+	ip netns exec "${NS2}" sysctl -qw net.mpls.platform_labels=256
+	ip -netns "${NS1}" -family mpls route add 200 via inet6 2001:db8::10
+	ip -netns "${NS2}" -family mpls route add 203 via inet6 2001:db8::33
+}
+
+# Run "ping" from NS0 and print the result
+#
+# Parameters:
+#
+#   * $1: the variant of ping to use (normally either "ping" or "ping6"),
+#   * $2: the IP address to ping,
+#   * $3: a human readable description of the purpose of the test.
+#
+# If the test fails and PAUSE_ON_FAIL is active, the user is given the
+# possibility to continue with the next test or to quit immediately.
+#
+ping_test_one()
+{
+	local PING="$1"; readonly PING
+	local IP="$2"; readonly IP
+	local MSG="$3"; readonly MSG
+	local RET
+
+	printf "TEST: %-60s  " "${MSG}"
+
+	set +e
+	ip netns exec "${NS0}" "${PING}" -w 5 -c 1 "${IP}" > /dev/null 2>&1
+	RET=$?
+	set -e
+
+	if [ "${RET}" -eq 0 ]; then
+		printf "[ OK ]\n"
+	else
+		ERR=1
+		printf "[FAIL]\n"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			printf "\nHit enter to continue, 'q' to quit\n"
+			read a
+			if [ "$a" = "q" ]; then
+				exit 1
+			fi
+		fi
+	fi
+}
+
+# Run reachability tests
+#
+# Parameters:
+#
+#   * $1: human readable string describing the underlay protocol.
+#
+# $IPV4, $IPV6, $MPLS_UC and $MULTIPROTO are inherited from the calling
+# function.
+#
+ping_test()
+{
+	local UNDERLAY="$1"; readonly UNDERLAY
+	local MODE
+	local MSG
+
+	if [ "${MULTIPROTO}" = "multiproto" ]; then
+		MODE=" (multiproto mode)"
+	else
+		MODE=""
+	fi
+
+	if [ $IPV4 ]; then
+		ping_test_one "ping" "192.0.2.103" "IPv4 packets over ${UNDERLAY}${MODE}"
+	fi
+	if [ $IPV6 ]; then
+		ping_test_one "${PING6}" "2001:db8::103" "IPv6 packets over ${UNDERLAY}${MODE}"
+	fi
+	if [ $MPLS_UC ]; then
+		ping_test_one "${PING6}" "2001:db8::203" "Unicast MPLS packets over ${UNDERLAY}${MODE}"
+	fi
+}
+
+# Set up a bareudp overlay and run reachability tests over IPv4 and IPv6
+#
+# Parameters:
+#
+#   * $1: the packet type (protocol) to be handled by bareudp,
+#   * $2: a flag to activate or deactivate bareudp's "multiproto" mode.
+#
+test_overlay()
+{
+	local ETHERTYPE="$1"; readonly ETHERTYPE
+	local MULTIPROTO="$2"; readonly MULTIPROTO
+	local IPV4
+	local IPV6
+	local MPLS_UC
+
+	case "${ETHERTYPE}" in
+		"ipv4")
+			IPV4="ipv4"
+			if [ "${MULTIPROTO}" = "multiproto" ]; then
+				IPV6="ipv6"
+			else
+				IPV6=""
+			fi
+			MPLS_UC=""
+			;;
+		"ipv6")
+			IPV6="ipv6"
+			IPV4=""
+			MPLS_UC=""
+			;;
+		"mpls_uc")
+			MPLS_UC="mpls_uc"
+			IPV4=""
+			IPV6=""
+			;;
+		*)
+			exit 1
+			;;
+	esac
+	readonly IPV4
+	readonly IPV6
+	readonly MPLS_UC
+
+	# Create the bareudp devices in the intermediate namespaces
+	ip -netns "${NS1}" link add name bareudp_ns1 up type bareudp dstport 6635 ethertype "${ETHERTYPE}" "${MULTIPROTO}"
+	ip -netns "${NS2}" link add name bareudp_ns2 up type bareudp dstport 6635 ethertype "${ETHERTYPE}" "${MULTIPROTO}"
+
+	# IPv4 over UDPv4
+	if [ $IPV4 ]; then
+		# Encapsulation instructions for bareudp over IPv4
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol ipv4         \
+			flower dst_ip 192.0.2.103/32                                   \
+			action tunnel_key set src_ip 192.0.2.21 dst_ip 192.0.2.22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol ipv4         \
+			flower dst_ip 192.0.2.100/32                                   \
+			action tunnel_key set src_ip 192.0.2.22 dst_ip 192.0.2.21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# IPv6 over UDPv4
+	if [ $IPV6 ]; then
+		# Encapsulation instructions for bareudp over IPv4
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol ipv6         \
+			flower dst_ip 2001:db8::103/128                                \
+			action tunnel_key set src_ip 192.0.2.21 dst_ip 192.0.2.22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol ipv6         \
+			flower dst_ip 2001:db8::100/128                                \
+			action tunnel_key set src_ip 192.0.2.22 dst_ip 192.0.2.21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# MPLS (unicast) over UDPv4
+	if [ $MPLS_UC ]; then
+		ip netns exec "${NS1}" sysctl -qw net.mpls.conf.bareudp_ns1.input=1
+		ip netns exec "${NS2}" sysctl -qw net.mpls.conf.bareudp_ns2.input=1
+
+		# Encapsulation instructions for bareudp over IPv4
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol mpls_uc      \
+			flower mpls_label 203                                          \
+			action tunnel_key set src_ip 192.0.2.21 dst_ip 192.0.2.22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol mpls_uc      \
+			flower mpls_label 200                                          \
+			action tunnel_key set src_ip 192.0.2.22 dst_ip 192.0.2.21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# Test IPv4 underlay
+	ping_test "UDPv4"
+
+	# Cleanup bareudp encapsulation instructions, as they were specific to
+	# the IPv4 underlay, before setting up and testing the IPv6 underlay
+	tc -netns "${NS1}" filter delete dev veth10 ingress
+	tc -netns "${NS2}" filter delete dev veth23 ingress
+
+	# IPv4 over UDPv6
+	if [ $IPV4 ]; then
+		# New encapsulation instructions for bareudp over IPv6
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol ipv4             \
+			flower dst_ip 192.0.2.103/32                                       \
+			action tunnel_key set src_ip 2001:db8::21 dst_ip 2001:db8::22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol ipv4             \
+			flower dst_ip 192.0.2.100/32                                       \
+			action tunnel_key set src_ip 2001:db8::22 dst_ip 2001:db8::21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# IPv6 over UDPv6
+	if [ $IPV6 ]; then
+		# New encapsulation instructions for bareudp over IPv6
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol ipv6             \
+			flower dst_ip 2001:db8::103/128                                    \
+			action tunnel_key set src_ip 2001:db8::21 dst_ip 2001:db8::22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol ipv6             \
+			flower dst_ip 2001:db8::100/128                                    \
+			action tunnel_key set src_ip 2001:db8::22 dst_ip 2001:db8::21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# MPLS (unicast) over UDPv6
+	if [ $MPLS_UC ]; then
+		# New encapsulation instructions for bareudp over IPv6
+		tc -netns "${NS1}" filter add dev veth10 ingress protocol mpls_uc          \
+			flower mpls_label 203                                              \
+			action tunnel_key set src_ip 2001:db8::21 dst_ip 2001:db8::22 id 0 \
+			action mirred egress redirect dev bareudp_ns1
+		tc -netns "${NS2}" filter add dev veth23 ingress protocol mpls_uc          \
+			flower mpls_label 200                                              \
+			action tunnel_key set src_ip 2001:db8::22 dst_ip 2001:db8::21 id 0 \
+			action mirred egress redirect dev bareudp_ns2
+	fi
+
+	# Test IPv6 underlay
+	ping_test "UDPv6"
+
+	tc -netns "${NS1}" filter delete dev veth10 ingress
+	tc -netns "${NS2}" filter delete dev veth23 ingress
+	ip -netns "${NS1}" link delete bareudp_ns1
+	ip -netns "${NS2}" link delete bareudp_ns2
+}
+
+check_features()
+{
+	ip link help 2>&1 | grep -q bareudp
+	if [ $? -ne 0 ]; then
+		echo "Missing bareudp support in iproute2" >&2
+		exit_cleanup
+	fi
+
+	# Use ping6 on systems where ping doesn't handle IPv6
+	ping -w 1 -c 1 ::1 > /dev/null 2>&1 || PING6="ping6"
+}
+
+usage()
+{
+	echo "Usage: $0 [-p]"
+	exit 1
+}
+
+while getopts :p o
+do
+	case $o in
+		p) PAUSE_ON_FAIL="yes";;
+		*) usage;;
+	esac
+done
+
+check_features
+
+set -e
+trap exit_cleanup EXIT
+
+create_namespaces
+
+setup_underlay
+setup_overlay_ipv4
+setup_overlay_ipv6
+setup_overlay_mpls
+
+test_overlay ipv4 nomultiproto
+test_overlay ipv6 nomultiproto
+test_overlay ipv4 multiproto
+test_overlay mpls_uc nomultiproto
+
+if [ "${ERR}" -eq 1 ]; then
+	echo "Some tests failed." >&2
+else
+	ERR=0
+fi
diff --git a/tools/testing/selftests/net/bench/Makefile b/tools/testing/selftests/net/bench/Makefile
new file mode 100644
index 000000000000..2546c45e42f7
--- /dev/null
+++ b/tools/testing/selftests/net/bench/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_MODS_DIR := page_pool
+
+TEST_PROGS += test_bench_page_pool.sh
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/bench/page_pool/Makefile b/tools/testing/selftests/net/bench/page_pool/Makefile
new file mode 100644
index 000000000000..0549a16ba275
--- /dev/null
+++ b/tools/testing/selftests/net/bench/page_pool/Makefile
@@ -0,0 +1,17 @@
+BENCH_PAGE_POOL_SIMPLE_TEST_DIR := $(realpath $(dir $(abspath $(lastword $(MAKEFILE_LIST)))))
+KDIR ?= /lib/modules/$(shell uname -r)/build
+
+ifeq ($(V),1)
+Q =
+else
+Q = @
+endif
+
+obj-m	+= bench_page_pool.o
+bench_page_pool-y += bench_page_pool_simple.o time_bench.o
+
+all:
+	+$(Q)make -C $(KDIR) M=$(BENCH_PAGE_POOL_SIMPLE_TEST_DIR) modules
+
+clean:
+	+$(Q)make -C $(KDIR) M=$(BENCH_PAGE_POOL_SIMPLE_TEST_DIR) clean
diff --git a/tools/testing/selftests/net/bench/page_pool/bench_page_pool_simple.c b/tools/testing/selftests/net/bench/page_pool/bench_page_pool_simple.c
new file mode 100644
index 000000000000..cb6468adbda4
--- /dev/null
+++ b/tools/testing/selftests/net/bench/page_pool/bench_page_pool_simple.c
@@ -0,0 +1,267 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Benchmark module for page_pool.
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/interrupt.h>
+#include <linux/limits.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <net/page_pool/helpers.h>
+
+#include "time_bench.h"
+
+static int verbose = 1;
+#define MY_POOL_SIZE 1024
+
+/* Makes tests selectable. Useful for perf-record to analyze a single test.
+ * Hint: Bash shells support writing binary number like: $((2#101010)
+ *
+ * # modprobe bench_page_pool_simple run_flags=$((2#100))
+ */
+static unsigned long run_flags = 0xFFFFFFFF;
+module_param(run_flags, ulong, 0);
+MODULE_PARM_DESC(run_flags, "Limit which bench test that runs");
+
+/* Count the bit number from the enum */
+enum benchmark_bit {
+	bit_run_bench_baseline,
+	bit_run_bench_no_softirq01,
+	bit_run_bench_no_softirq02,
+	bit_run_bench_no_softirq03,
+};
+
+#define bit(b)		(1 << (b))
+#define enabled(b)	((run_flags & (bit(b))))
+
+/* notice time_bench is limited to U32_MAX nr loops */
+static unsigned long loops = 10000000;
+module_param(loops, ulong, 0);
+MODULE_PARM_DESC(loops, "Specify loops bench will run");
+
+/* Timing at the nanosec level, we need to know the overhead
+ * introduced by the for loop itself
+ */
+static int time_bench_for_loop(struct time_bench_record *rec, void *data)
+{
+	uint64_t loops_cnt = 0;
+	int i;
+
+	time_bench_start(rec);
+	/** Loop to measure **/
+	for (i = 0; i < rec->loops; i++) {
+		loops_cnt++;
+		barrier(); /* avoid compiler to optimize this loop */
+	}
+	time_bench_stop(rec, loops_cnt);
+	return loops_cnt;
+}
+
+static int time_bench_atomic_inc(struct time_bench_record *rec, void *data)
+{
+	uint64_t loops_cnt = 0;
+	atomic_t cnt;
+	int i;
+
+	atomic_set(&cnt, 0);
+
+	time_bench_start(rec);
+	/** Loop to measure **/
+	for (i = 0; i < rec->loops; i++) {
+		atomic_inc(&cnt);
+		barrier(); /* avoid compiler to optimize this loop */
+	}
+	loops_cnt = atomic_read(&cnt);
+	time_bench_stop(rec, loops_cnt);
+	return loops_cnt;
+}
+
+/* The ptr_ping in page_pool uses a spinlock. We need to know the minimum
+ * overhead of taking+releasing a spinlock, to know the cycles that can be saved
+ * by e.g. amortizing this via bulking.
+ */
+static int time_bench_lock(struct time_bench_record *rec, void *data)
+{
+	uint64_t loops_cnt = 0;
+	spinlock_t lock;
+	int i;
+
+	spin_lock_init(&lock);
+
+	time_bench_start(rec);
+	/** Loop to measure **/
+	for (i = 0; i < rec->loops; i++) {
+		spin_lock(&lock);
+		loops_cnt++;
+		barrier(); /* avoid compiler to optimize this loop */
+		spin_unlock(&lock);
+	}
+	time_bench_stop(rec, loops_cnt);
+	return loops_cnt;
+}
+
+/* Helper for filling some page's into ptr_ring */
+static void pp_fill_ptr_ring(struct page_pool *pp, int elems)
+{
+	/* GFP_ATOMIC needed when under run softirq */
+	gfp_t gfp_mask = GFP_ATOMIC;
+	struct page **array;
+	int i;
+
+	array = kcalloc(elems, sizeof(struct page *), gfp_mask);
+
+	for (i = 0; i < elems; i++)
+		array[i] = page_pool_alloc_pages(pp, gfp_mask);
+	for (i = 0; i < elems; i++)
+		page_pool_put_page(pp, array[i], -1, false);
+
+	kfree(array);
+}
+
+enum test_type { type_fast_path, type_ptr_ring, type_page_allocator };
+
+/* Depends on compile optimizing this function */
+static int time_bench_page_pool(struct time_bench_record *rec, void *data,
+				enum test_type type, const char *func)
+{
+	uint64_t loops_cnt = 0;
+	gfp_t gfp_mask = GFP_ATOMIC; /* GFP_ATOMIC is not really needed */
+	int i, err;
+
+	struct page_pool *pp;
+	struct page *page;
+
+	struct page_pool_params pp_params = {
+		.order = 0,
+		.flags = 0,
+		.pool_size = MY_POOL_SIZE,
+		.nid = NUMA_NO_NODE,
+		.dev = NULL, /* Only use for DMA mapping */
+		.dma_dir = DMA_BIDIRECTIONAL,
+	};
+
+	pp = page_pool_create(&pp_params);
+	if (IS_ERR(pp)) {
+		err = PTR_ERR(pp);
+		pr_warn("%s: Error(%d) creating page_pool\n", func, err);
+		goto out;
+	}
+	pp_fill_ptr_ring(pp, 64);
+
+	if (in_serving_softirq())
+		pr_warn("%s(): in_serving_softirq fast-path\n", func);
+	else
+		pr_warn("%s(): Cannot use page_pool fast-path\n", func);
+
+	time_bench_start(rec);
+	/** Loop to measure **/
+	for (i = 0; i < rec->loops; i++) {
+		/* Common fast-path alloc that depend on in_serving_softirq() */
+		page = page_pool_alloc_pages(pp, gfp_mask);
+		if (!page)
+			break;
+		loops_cnt++;
+		barrier(); /* avoid compiler to optimize this loop */
+
+		/* The benchmarks purpose it to test different return paths.
+		 * Compiler should inline optimize other function calls out
+		 */
+		if (type == type_fast_path) {
+			/* Fast-path recycling e.g. XDP_DROP use-case */
+			page_pool_recycle_direct(pp, page);
+
+		} else if (type == type_ptr_ring) {
+			/* Normal return path */
+			page_pool_put_page(pp, page, -1, false);
+
+		} else if (type == type_page_allocator) {
+			/* Test if not pages are recycled, but instead
+			 * returned back into systems page allocator
+			 */
+			get_page(page); /* cause no-recycling */
+			page_pool_put_page(pp, page, -1, false);
+			put_page(page);
+		} else {
+			BUILD_BUG();
+		}
+	}
+	time_bench_stop(rec, loops_cnt);
+out:
+	page_pool_destroy(pp);
+	return loops_cnt;
+}
+
+static int time_bench_page_pool01_fast_path(struct time_bench_record *rec,
+					    void *data)
+{
+	return time_bench_page_pool(rec, data, type_fast_path, __func__);
+}
+
+static int time_bench_page_pool02_ptr_ring(struct time_bench_record *rec,
+					   void *data)
+{
+	return time_bench_page_pool(rec, data, type_ptr_ring, __func__);
+}
+
+static int time_bench_page_pool03_slow(struct time_bench_record *rec,
+				       void *data)
+{
+	return time_bench_page_pool(rec, data, type_page_allocator, __func__);
+}
+
+static int run_benchmark_tests(void)
+{
+	uint32_t nr_loops = loops;
+
+	/* Baseline tests */
+	if (enabled(bit_run_bench_baseline)) {
+		time_bench_loop(nr_loops * 10, 0, "for_loop", NULL,
+				time_bench_for_loop);
+		time_bench_loop(nr_loops * 10, 0, "atomic_inc", NULL,
+				time_bench_atomic_inc);
+		time_bench_loop(nr_loops, 0, "lock", NULL, time_bench_lock);
+	}
+
+	/* This test cannot activate correct code path, due to no-softirq ctx */
+	if (enabled(bit_run_bench_no_softirq01))
+		time_bench_loop(nr_loops, 0, "no-softirq-page_pool01", NULL,
+				time_bench_page_pool01_fast_path);
+	if (enabled(bit_run_bench_no_softirq02))
+		time_bench_loop(nr_loops, 0, "no-softirq-page_pool02", NULL,
+				time_bench_page_pool02_ptr_ring);
+	if (enabled(bit_run_bench_no_softirq03))
+		time_bench_loop(nr_loops, 0, "no-softirq-page_pool03", NULL,
+				time_bench_page_pool03_slow);
+
+	return 0;
+}
+
+static int __init bench_page_pool_simple_module_init(void)
+{
+	if (verbose)
+		pr_info("Loaded\n");
+
+	if (loops > U32_MAX) {
+		pr_err("Module param loops(%lu) exceeded U32_MAX(%u)\n", loops,
+		       U32_MAX);
+		return -ECHRNG;
+	}
+
+	run_benchmark_tests();
+
+	return 0;
+}
+module_init(bench_page_pool_simple_module_init);
+
+static void __exit bench_page_pool_simple_module_exit(void)
+{
+	if (verbose)
+		pr_info("Unloaded\n");
+}
+module_exit(bench_page_pool_simple_module_exit);
+
+MODULE_DESCRIPTION("Benchmark of page_pool simple cases");
+MODULE_AUTHOR("Jesper Dangaard Brouer <netoptimizer@brouer.com>");
+MODULE_LICENSE("GPL");
diff --git a/tools/testing/selftests/net/bench/page_pool/time_bench.c b/tools/testing/selftests/net/bench/page_pool/time_bench.c
new file mode 100644
index 000000000000..073bb36ec5f2
--- /dev/null
+++ b/tools/testing/selftests/net/bench/page_pool/time_bench.c
@@ -0,0 +1,394 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Benchmarking code execution time inside the kernel
+ *
+ * Copyright (C) 2014, Red Hat, Inc., Jesper Dangaard Brouer
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/time.h>
+
+#include <linux/perf_event.h> /* perf_event_create_kernel_counter() */
+
+/* For concurrency testing */
+#include <linux/completion.h>
+#include <linux/sched.h>
+#include <linux/workqueue.h>
+#include <linux/kthread.h>
+
+#include "time_bench.h"
+
+static int verbose = 1;
+
+/** TSC (Time-Stamp Counter) based **
+ * See: linux/time_bench.h
+ *  tsc_start_clock() and tsc_stop_clock()
+ */
+
+/** Wall-clock based **
+ */
+
+/** PMU (Performance Monitor Unit) based **
+ */
+#define PERF_FORMAT                                                            \
+	(PERF_FORMAT_GROUP | PERF_FORMAT_ID | PERF_FORMAT_TOTAL_TIME_ENABLED | \
+	 PERF_FORMAT_TOTAL_TIME_RUNNING)
+
+struct raw_perf_event {
+	uint64_t config; /* event */
+	uint64_t config1; /* umask */
+	struct perf_event *save;
+	char *desc;
+};
+
+/* if HT is enable a maximum of 4 events (5 if one is instructions
+ * retired can be specified, if HT is disabled a maximum of 8 (9 if
+ * one is instructions retired) can be specified.
+ *
+ * From Table 19-1. Architectural Performance Events
+ * Architectures Software Developer’s Manual Volume 3: System Programming
+ * Guide
+ */
+struct raw_perf_event perf_events[] = {
+	{ 0x3c, 0x00, NULL, "Unhalted CPU Cycles" },
+	{ 0xc0, 0x00, NULL, "Instruction Retired" }
+};
+
+#define NUM_EVTS (ARRAY_SIZE(perf_events))
+
+/* WARNING: PMU config is currently broken!
+ */
+bool time_bench_PMU_config(bool enable)
+{
+	int i;
+	struct perf_event_attr perf_conf;
+	struct perf_event *perf_event;
+	int cpu;
+
+	preempt_disable();
+	cpu = smp_processor_id();
+	pr_info("DEBUG: cpu:%d\n", cpu);
+	preempt_enable();
+
+	memset(&perf_conf, 0, sizeof(struct perf_event_attr));
+	perf_conf.type           = PERF_TYPE_RAW;
+	perf_conf.size           = sizeof(struct perf_event_attr);
+	perf_conf.read_format    = PERF_FORMAT;
+	perf_conf.pinned         = 1;
+	perf_conf.exclude_user   = 1; /* No userspace events */
+	perf_conf.exclude_kernel = 0; /* Only kernel events */
+
+	for (i = 0; i < NUM_EVTS; i++) {
+		perf_conf.disabled = enable;
+		//perf_conf.disabled = (i == 0) ? 1 : 0;
+		perf_conf.config   = perf_events[i].config;
+		perf_conf.config1  = perf_events[i].config1;
+		if (verbose)
+			pr_info("%s() enable PMU counter: %s\n",
+				__func__, perf_events[i].desc);
+		perf_event = perf_event_create_kernel_counter(&perf_conf, cpu,
+							      NULL /* task */,
+							      NULL /* overflow_handler*/,
+							      NULL /* context */);
+		if (perf_event) {
+			perf_events[i].save = perf_event;
+			pr_info("%s():DEBUG perf_event success\n", __func__);
+
+			perf_event_enable(perf_event);
+		} else {
+			pr_info("%s():DEBUG perf_event is NULL\n", __func__);
+		}
+	}
+
+	return true;
+}
+
+/** Generic functions **
+ */
+
+/* Calculate stats, store results in record */
+bool time_bench_calc_stats(struct time_bench_record *rec)
+{
+#define NANOSEC_PER_SEC 1000000000 /* 10^9 */
+	uint64_t ns_per_call_tmp_rem = 0;
+	uint32_t ns_per_call_remainder = 0;
+	uint64_t pmc_ipc_tmp_rem = 0;
+	uint32_t pmc_ipc_remainder = 0;
+	uint32_t pmc_ipc_div = 0;
+	uint32_t invoked_cnt_precision = 0;
+	uint32_t invoked_cnt = 0; /* 32-bit due to div_u64_rem() */
+
+	if (rec->flags & TIME_BENCH_LOOP) {
+		if (rec->invoked_cnt < 1000) {
+			pr_err("ERR: need more(>1000) loops(%llu) for timing\n",
+			       rec->invoked_cnt);
+			return false;
+		}
+		if (rec->invoked_cnt > ((1ULL << 32) - 1)) {
+			/* div_u64_rem() can only support div with 32bit*/
+			pr_err("ERR: Invoke cnt(%llu) too big overflow 32bit\n",
+			       rec->invoked_cnt);
+			return false;
+		}
+		invoked_cnt = (uint32_t)rec->invoked_cnt;
+	}
+
+	/* TSC (Time-Stamp Counter) records */
+	if (rec->flags & TIME_BENCH_TSC) {
+		rec->tsc_interval = rec->tsc_stop - rec->tsc_start;
+		if (rec->tsc_interval == 0) {
+			pr_err("ABORT: timing took ZERO TSC time\n");
+			return false;
+		}
+		/* Calculate stats */
+		if (rec->flags & TIME_BENCH_LOOP)
+			rec->tsc_cycles = rec->tsc_interval / invoked_cnt;
+		else
+			rec->tsc_cycles = rec->tsc_interval;
+	}
+
+	/* Wall-clock time calc */
+	if (rec->flags & TIME_BENCH_WALLCLOCK) {
+		rec->time_start = rec->ts_start.tv_nsec +
+				  (NANOSEC_PER_SEC * rec->ts_start.tv_sec);
+		rec->time_stop = rec->ts_stop.tv_nsec +
+				 (NANOSEC_PER_SEC * rec->ts_stop.tv_sec);
+		rec->time_interval = rec->time_stop - rec->time_start;
+		if (rec->time_interval == 0) {
+			pr_err("ABORT: timing took ZERO wallclock time\n");
+			return false;
+		}
+		/* Calculate stats */
+		/*** Division in kernel it tricky ***/
+		/* Orig: time_sec = (time_interval / NANOSEC_PER_SEC); */
+		/* remainder only correct because NANOSEC_PER_SEC is 10^9 */
+		rec->time_sec = div_u64_rem(rec->time_interval, NANOSEC_PER_SEC,
+					    &rec->time_sec_remainder);
+		//TODO: use existing struct timespec records instead of div?
+
+		if (rec->flags & TIME_BENCH_LOOP) {
+			/*** Division in kernel it tricky ***/
+			/* Orig: ns = ((double)time_interval / invoked_cnt); */
+			/* First get quotient */
+			rec->ns_per_call_quotient =
+				div_u64_rem(rec->time_interval, invoked_cnt,
+					    &ns_per_call_remainder);
+			/* Now get decimals .xxx precision (incorrect roundup)*/
+			ns_per_call_tmp_rem = ns_per_call_remainder;
+			invoked_cnt_precision = invoked_cnt / 1000;
+			if (invoked_cnt_precision > 0) {
+				rec->ns_per_call_decimal =
+					div_u64_rem(ns_per_call_tmp_rem,
+						    invoked_cnt_precision,
+						    &ns_per_call_remainder);
+			}
+		}
+	}
+
+	/* Performance Monitor Unit (PMU) counters */
+	if (rec->flags & TIME_BENCH_PMU) {
+		//FIXME: Overflow handling???
+		rec->pmc_inst = rec->pmc_inst_stop - rec->pmc_inst_start;
+		rec->pmc_clk = rec->pmc_clk_stop - rec->pmc_clk_start;
+
+		/* Calc Instruction Per Cycle (IPC) */
+		/* First get quotient */
+		rec->pmc_ipc_quotient = div_u64_rem(rec->pmc_inst, rec->pmc_clk,
+						    &pmc_ipc_remainder);
+		/* Now get decimals .xxx precision (incorrect roundup)*/
+		pmc_ipc_tmp_rem = pmc_ipc_remainder;
+		pmc_ipc_div = rec->pmc_clk / 1000;
+		if (pmc_ipc_div > 0) {
+			rec->pmc_ipc_decimal = div_u64_rem(pmc_ipc_tmp_rem,
+							   pmc_ipc_div,
+							   &pmc_ipc_remainder);
+		}
+	}
+
+	return true;
+}
+
+/* Generic function for invoking a loop function and calculating
+ * execution time stats.  The function being called/timed is assumed
+ * to perform a tight loop, and update the timing record struct.
+ */
+bool time_bench_loop(uint32_t loops, int step, char *txt, void *data,
+		     int (*func)(struct time_bench_record *record, void *data))
+{
+	struct time_bench_record rec;
+
+	/* Setup record */
+	memset(&rec, 0, sizeof(rec)); /* zero func might not update all */
+	rec.version_abi = 1;
+	rec.loops       = loops;
+	rec.step        = step;
+	rec.flags       = (TIME_BENCH_LOOP | TIME_BENCH_TSC | TIME_BENCH_WALLCLOCK);
+
+	/*** Loop function being timed ***/
+	if (!func(&rec, data)) {
+		pr_err("ABORT: function being timed failed\n");
+		return false;
+	}
+
+	if (rec.invoked_cnt < loops)
+		pr_warn("WARNING: Invoke count(%llu) smaller than loops(%d)\n",
+			rec.invoked_cnt, loops);
+
+	/* Calculate stats */
+	time_bench_calc_stats(&rec);
+
+	pr_info("Type:%s Per elem: %llu cycles(tsc) %llu.%03llu ns (step:%d) - (measurement period time:%llu.%09u sec time_interval:%llu) - (invoke count:%llu tsc_interval:%llu)\n",
+		txt, rec.tsc_cycles, rec.ns_per_call_quotient,
+		rec.ns_per_call_decimal, rec.step, rec.time_sec,
+		rec.time_sec_remainder, rec.time_interval, rec.invoked_cnt,
+		rec.tsc_interval);
+	if (rec.flags & TIME_BENCH_PMU)
+		pr_info("Type:%s PMU inst/clock%llu/%llu = %llu.%03llu IPC (inst per cycle)\n",
+			txt, rec.pmc_inst, rec.pmc_clk, rec.pmc_ipc_quotient,
+			rec.pmc_ipc_decimal);
+	return true;
+}
+
+/* Function getting invoked by kthread */
+static int invoke_test_on_cpu_func(void *private)
+{
+	struct time_bench_cpu *cpu = private;
+	struct time_bench_sync *sync = cpu->sync;
+	cpumask_t newmask = CPU_MASK_NONE;
+	void *data = cpu->data;
+
+	/* Restrict CPU */
+	cpumask_set_cpu(cpu->rec.cpu, &newmask);
+	set_cpus_allowed_ptr(current, &newmask);
+
+	/* Synchronize start of concurrency test */
+	atomic_inc(&sync->nr_tests_running);
+	wait_for_completion(&sync->start_event);
+
+	/* Start benchmark function */
+	if (!cpu->bench_func(&cpu->rec, data)) {
+		pr_err("ERROR: function being timed failed on CPU:%d(%d)\n",
+		       cpu->rec.cpu, smp_processor_id());
+	} else {
+		if (verbose)
+			pr_info("SUCCESS: ran on CPU:%d(%d)\n", cpu->rec.cpu,
+				smp_processor_id());
+	}
+	cpu->did_bench_run = true;
+
+	/* End test */
+	atomic_dec(&sync->nr_tests_running);
+	/*  Wait for kthread_stop() telling us to stop */
+	while (!kthread_should_stop()) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+	return 0;
+}
+
+void time_bench_print_stats_cpumask(const char *desc,
+				    struct time_bench_cpu *cpu_tasks,
+				    const struct cpumask *mask)
+{
+	uint64_t average = 0;
+	int cpu;
+	int step = 0;
+	struct sum {
+		uint64_t tsc_cycles;
+		int records;
+	} sum = { 0 };
+
+	/* Get stats */
+	for_each_cpu(cpu, mask) {
+		struct time_bench_cpu *c = &cpu_tasks[cpu];
+		struct time_bench_record *rec = &c->rec;
+
+		/* Calculate stats */
+		time_bench_calc_stats(rec);
+
+		pr_info("Type:%s CPU(%d) %llu cycles(tsc) %llu.%03llu ns (step:%d) - (measurement period time:%llu.%09u sec time_interval:%llu) - (invoke count:%llu tsc_interval:%llu)\n",
+			desc, cpu, rec->tsc_cycles, rec->ns_per_call_quotient,
+			rec->ns_per_call_decimal, rec->step, rec->time_sec,
+			rec->time_sec_remainder, rec->time_interval,
+			rec->invoked_cnt, rec->tsc_interval);
+
+		/* Collect average */
+		sum.records++;
+		sum.tsc_cycles += rec->tsc_cycles;
+		step = rec->step;
+	}
+
+	if (sum.records) /* avoid div-by-zero */
+		average = sum.tsc_cycles / sum.records;
+	pr_info("Sum Type:%s Average: %llu cycles(tsc) CPUs:%d step:%d\n", desc,
+		average, sum.records, step);
+}
+
+void time_bench_run_concurrent(uint32_t loops, int step, void *data,
+			       const struct cpumask *mask, /* Support masking outsome CPUs*/
+			       struct time_bench_sync *sync,
+			       struct time_bench_cpu *cpu_tasks,
+			       int (*func)(struct time_bench_record *record, void *data))
+{
+	int cpu, running = 0;
+
+	if (verbose) // DEBUG
+		pr_warn("%s() Started on CPU:%d\n", __func__,
+			smp_processor_id());
+
+	/* Reset sync conditions */
+	atomic_set(&sync->nr_tests_running, 0);
+	init_completion(&sync->start_event);
+
+	/* Spawn off jobs on all CPUs */
+	for_each_cpu(cpu, mask) {
+		struct time_bench_cpu *c = &cpu_tasks[cpu];
+
+		running++;
+		c->sync = sync; /* Send sync variable along */
+		c->data = data; /* Send opaque along */
+
+		/* Init benchmark record */
+		memset(&c->rec, 0, sizeof(struct time_bench_record));
+		c->rec.version_abi = 1;
+		c->rec.loops       = loops;
+		c->rec.step        = step;
+		c->rec.flags       = (TIME_BENCH_LOOP | TIME_BENCH_TSC |
+				      TIME_BENCH_WALLCLOCK);
+		c->rec.cpu = cpu;
+		c->bench_func = func;
+		c->task = kthread_run(invoke_test_on_cpu_func, c,
+				      "time_bench%d", cpu);
+		if (IS_ERR(c->task)) {
+			pr_err("%s(): Failed to start test func\n", __func__);
+			return; /* Argh, what about cleanup?! */
+		}
+	}
+
+	/* Wait until all processes are running */
+	while (atomic_read(&sync->nr_tests_running) < running) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(10);
+	}
+	/* Kick off all CPU concurrently on completion event */
+	complete_all(&sync->start_event);
+
+	/* Wait for CPUs to finish */
+	while (atomic_read(&sync->nr_tests_running)) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		schedule_timeout(10);
+	}
+
+	/* Stop the kthreads */
+	for_each_cpu(cpu, mask) {
+		struct time_bench_cpu *c = &cpu_tasks[cpu];
+
+		kthread_stop(c->task);
+	}
+
+	if (verbose) // DEBUG - happens often, finish on another CPU
+		pr_warn("%s() Finished on CPU:%d\n", __func__,
+			smp_processor_id());
+}
diff --git a/tools/testing/selftests/net/bench/page_pool/time_bench.h b/tools/testing/selftests/net/bench/page_pool/time_bench.h
new file mode 100644
index 000000000000..e113fcf341dc
--- /dev/null
+++ b/tools/testing/selftests/net/bench/page_pool/time_bench.h
@@ -0,0 +1,238 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Benchmarking code execution time inside the kernel
+ *
+ * Copyright (C) 2014, Red Hat, Inc., Jesper Dangaard Brouer
+ *  for licensing details see kernel-base/COPYING
+ */
+#ifndef _LINUX_TIME_BENCH_H
+#define _LINUX_TIME_BENCH_H
+
+/* Main structure used for recording a benchmark run */
+struct time_bench_record {
+	uint32_t version_abi;
+	uint32_t loops;		/* Requested loop invocations */
+	uint32_t step;		/* option for e.g. bulk invocations */
+
+	uint32_t flags;		/* Measurements types enabled */
+#define TIME_BENCH_LOOP		BIT(0)
+#define TIME_BENCH_TSC		BIT(1)
+#define TIME_BENCH_WALLCLOCK	BIT(2)
+#define TIME_BENCH_PMU		BIT(3)
+
+	uint32_t cpu; /* Used when embedded in time_bench_cpu */
+
+	/* Records */
+	uint64_t invoked_cnt;	/* Returned actual invocations */
+	uint64_t tsc_start;
+	uint64_t tsc_stop;
+	struct timespec64 ts_start;
+	struct timespec64 ts_stop;
+	/* PMU counters for instruction and cycles
+	 * instructions counter including pipelined instructions
+	 */
+	uint64_t pmc_inst_start;
+	uint64_t pmc_inst_stop;
+	/* CPU unhalted clock counter */
+	uint64_t pmc_clk_start;
+	uint64_t pmc_clk_stop;
+
+	/* Result records */
+	uint64_t tsc_interval;
+	uint64_t time_start, time_stop, time_interval; /* in nanosec */
+	uint64_t pmc_inst, pmc_clk;
+
+	/* Derived result records */
+	uint64_t tsc_cycles; // +decimal?
+	uint64_t ns_per_call_quotient, ns_per_call_decimal;
+	uint64_t time_sec;
+	uint32_t time_sec_remainder;
+	uint64_t pmc_ipc_quotient, pmc_ipc_decimal; /* inst per cycle */
+};
+
+/* For synchronizing parallel CPUs to run concurrently */
+struct time_bench_sync {
+	atomic_t nr_tests_running;
+	struct completion start_event;
+};
+
+/* Keep track of CPUs executing our bench function.
+ *
+ * Embed a time_bench_record for storing info per cpu
+ */
+struct time_bench_cpu {
+	struct time_bench_record rec;
+	struct time_bench_sync *sync; /* back ptr */
+	struct task_struct *task;
+	/* "data" opaque could have been placed in time_bench_sync,
+	 * but to avoid any false sharing, place it per CPU
+	 */
+	void *data;
+	/* Support masking outsome CPUs, mark if it ran */
+	bool did_bench_run;
+	/* int cpu; // note CPU stored in time_bench_record */
+	int (*bench_func)(struct time_bench_record *record, void *data);
+};
+
+/*
+ * Below TSC assembler code is not compatible with other archs, and
+ * can also fail on guests if cpu-flags are not correct.
+ *
+ * The way TSC reading is used, many iterations, does not require as
+ * high accuracy as described below (in Intel Doc #324264).
+ *
+ * Considering changing to use get_cycles() (#include <asm/timex.h>).
+ */
+
+/** TSC (Time-Stamp Counter) based **
+ * Recommend reading, to understand details of reading TSC accurately:
+ *  Intel Doc #324264, "How to Benchmark Code Execution Times on Intel"
+ *
+ * Consider getting exclusive ownership of CPU by using:
+ *   unsigned long flags;
+ *   preempt_disable();
+ *   raw_local_irq_save(flags);
+ *   _your_code_
+ *   raw_local_irq_restore(flags);
+ *   preempt_enable();
+ *
+ * Clobbered registers: "%rax", "%rbx", "%rcx", "%rdx"
+ *  RDTSC only change "%rax" and "%rdx" but
+ *  CPUID clears the high 32-bits of all (rax/rbx/rcx/rdx)
+ */
+static __always_inline uint64_t tsc_start_clock(void)
+{
+	/* See: Intel Doc #324264 */
+	unsigned int hi, lo;
+
+	asm volatile("CPUID\n\t"
+		     "RDTSC\n\t"
+		     "mov %%edx, %0\n\t"
+		     "mov %%eax, %1\n\t"
+		     : "=r"(hi), "=r"(lo)::"%rax", "%rbx", "%rcx", "%rdx");
+	//FIXME: on 32bit use clobbered %eax + %edx
+	return ((uint64_t)lo) | (((uint64_t)hi) << 32);
+}
+
+static __always_inline uint64_t tsc_stop_clock(void)
+{
+	/* See: Intel Doc #324264 */
+	unsigned int hi, lo;
+
+	asm volatile("RDTSCP\n\t"
+		     "mov %%edx, %0\n\t"
+		     "mov %%eax, %1\n\t"
+		     "CPUID\n\t"
+		     : "=r"(hi), "=r"(lo)::"%rax", "%rbx", "%rcx", "%rdx");
+	return ((uint64_t)lo) | (((uint64_t)hi) << 32);
+}
+
+/** Wall-clock based **
+ *
+ * use: getnstimeofday()
+ *  getnstimeofday(&rec->ts_start);
+ *  getnstimeofday(&rec->ts_stop);
+ *
+ * API changed see: Documentation/core-api/timekeeping.rst
+ *  https://www.kernel.org/doc/html/latest/core-api/timekeeping.html#c.getnstimeofday
+ *
+ * We should instead use: ktime_get_real_ts64() is a direct
+ *  replacement, but consider using monotonic time (ktime_get_ts64())
+ *  and/or a ktime_t based interface (ktime_get()/ktime_get_real()).
+ */
+
+/** PMU (Performance Monitor Unit) based **
+ *
+ * Needed for calculating: Instructions Per Cycle (IPC)
+ * - The IPC number tell how efficient the CPU pipelining were
+ */
+//lookup: perf_event_create_kernel_counter()
+
+bool time_bench_PMU_config(bool enable);
+
+/* Raw reading via rdpmc() using fixed counters
+ *
+ * From: https://github.com/andikleen/simple-pmu
+ */
+enum {
+	FIXED_SELECT = (1U << 30), /* == 0x40000000 */
+	FIXED_INST_RETIRED_ANY = 0,
+	FIXED_CPU_CLK_UNHALTED_CORE = 1,
+	FIXED_CPU_CLK_UNHALTED_REF = 2,
+};
+
+static __always_inline unsigned int long long p_rdpmc(unsigned int in)
+{
+	unsigned int d, a;
+
+	asm volatile("rdpmc" : "=d"(d), "=a"(a) : "c"(in) : "memory");
+	return ((unsigned long long)d << 32) | a;
+}
+
+/* These PMU counter needs to be enabled, but I don't have the
+ * configure code implemented.  My current hack is running:
+ *  sudo perf stat -e cycles:k -e instructions:k insmod lib/ring_queue_test.ko
+ */
+/* Reading all pipelined instruction */
+static __always_inline unsigned long long pmc_inst(void)
+{
+	return p_rdpmc(FIXED_SELECT | FIXED_INST_RETIRED_ANY);
+}
+
+/* Reading CPU clock cycles */
+static __always_inline unsigned long long pmc_clk(void)
+{
+	return p_rdpmc(FIXED_SELECT | FIXED_CPU_CLK_UNHALTED_CORE);
+}
+
+/* Raw reading via MSR rdmsr() is likely wrong
+ * FIXME: How can I know which raw MSR registers are conf for what?
+ */
+#define MSR_IA32_PCM0 0x400000C1 /* PERFCTR0 */
+#define MSR_IA32_PCM1 0x400000C2 /* PERFCTR1 */
+#define MSR_IA32_PCM2 0x400000C3
+static inline uint64_t msr_inst(unsigned long long *msr_result)
+{
+	return rdmsrq_safe(MSR_IA32_PCM0, msr_result);
+}
+
+/** Generic functions **
+ */
+bool time_bench_loop(uint32_t loops, int step, char *txt, void *data,
+		     int (*func)(struct time_bench_record *rec, void *data));
+bool time_bench_calc_stats(struct time_bench_record *rec);
+
+void time_bench_run_concurrent(uint32_t loops, int step, void *data,
+			       const struct cpumask *mask, /* Support masking outsome CPUs*/
+			       struct time_bench_sync *sync, struct time_bench_cpu *cpu_tasks,
+			       int (*func)(struct time_bench_record *record, void *data));
+void time_bench_print_stats_cpumask(const char *desc,
+				    struct time_bench_cpu *cpu_tasks,
+				    const struct cpumask *mask);
+
+//FIXME: use rec->flags to select measurement, should be MACRO
+static __always_inline void time_bench_start(struct time_bench_record *rec)
+{
+	//getnstimeofday(&rec->ts_start);
+	ktime_get_real_ts64(&rec->ts_start);
+	if (rec->flags & TIME_BENCH_PMU) {
+		rec->pmc_inst_start = pmc_inst();
+		rec->pmc_clk_start = pmc_clk();
+	}
+	rec->tsc_start = tsc_start_clock();
+}
+
+static __always_inline void time_bench_stop(struct time_bench_record *rec,
+					    uint64_t invoked_cnt)
+{
+	rec->tsc_stop = tsc_stop_clock();
+	if (rec->flags & TIME_BENCH_PMU) {
+		rec->pmc_inst_stop = pmc_inst();
+		rec->pmc_clk_stop = pmc_clk();
+	}
+	//getnstimeofday(&rec->ts_stop);
+	ktime_get_real_ts64(&rec->ts_stop);
+	rec->invoked_cnt = invoked_cnt;
+}
+
+#endif /* _LINUX_TIME_BENCH_H */
diff --git a/tools/testing/selftests/net/bench/test_bench_page_pool.sh b/tools/testing/selftests/net/bench/test_bench_page_pool.sh
new file mode 100755
index 000000000000..7b8b18cfedce
--- /dev/null
+++ b/tools/testing/selftests/net/bench/test_bench_page_pool.sh
@@ -0,0 +1,32 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+
+set -e
+
+DRIVER="./page_pool/bench_page_pool.ko"
+result=""
+
+function run_test()
+{
+	rmmod "bench_page_pool.ko" || true
+	insmod $DRIVER > /dev/null 2>&1
+	result=$(dmesg | tail -10)
+	echo "$result"
+
+	echo
+	echo "Fast path results:"
+	echo "${result}" | grep -o -E "no-softirq-page_pool01 Per elem: ([0-9]+) cycles\(tsc\) ([0-9]+\.[0-9]+) ns"
+
+	echo
+	echo "ptr_ring results:"
+	echo "${result}" | grep -o -E "no-softirq-page_pool02 Per elem: ([0-9]+) cycles\(tsc\) ([0-9]+\.[0-9]+) ns"
+
+	echo
+	echo "slow path results:"
+	echo "${result}" | grep -o -E "no-softirq-page_pool03 Per elem: ([0-9]+) cycles\(tsc\) ([0-9]+\.[0-9]+) ns"
+}
+
+run_test
+
+exit 0
diff --git a/tools/testing/selftests/net/big_tcp.sh b/tools/testing/selftests/net/big_tcp.sh
new file mode 100755
index 000000000000..2db9d15cd45f
--- /dev/null
+++ b/tools/testing/selftests/net/big_tcp.sh
@@ -0,0 +1,182 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing For IPv4 and IPv6 BIG TCP.
+# TOPO: CLIENT_NS (link0)<--->(link1) ROUTER_NS (link2)<--->(link3) SERVER_NS
+
+CLIENT_NS=$(mktemp -u client-XXXXXXXX)
+CLIENT_IP4="198.51.100.1"
+CLIENT_IP6="2001:db8:1::1"
+
+SERVER_NS=$(mktemp -u server-XXXXXXXX)
+SERVER_IP4="203.0.113.1"
+SERVER_IP6="2001:db8:2::1"
+
+ROUTER_NS=$(mktemp -u router-XXXXXXXX)
+SERVER_GW4="203.0.113.2"
+CLIENT_GW4="198.51.100.2"
+SERVER_GW6="2001:db8:2::2"
+CLIENT_GW6="2001:db8:1::2"
+
+MAX_SIZE=128000
+CHK_SIZE=65535
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+setup() {
+	ip netns add $CLIENT_NS
+	ip netns add $SERVER_NS
+	ip netns add $ROUTER_NS
+	ip -net $ROUTER_NS link add link1 type veth peer name link0 netns $CLIENT_NS
+	ip -net $ROUTER_NS link add link2 type veth peer name link3 netns $SERVER_NS
+
+	ip -net $CLIENT_NS link set link0 up
+	ip -net $CLIENT_NS link set link0 mtu 1442
+	ip -net $CLIENT_NS addr add $CLIENT_IP4/24 dev link0
+	ip -net $CLIENT_NS addr add $CLIENT_IP6/64 dev link0 nodad
+	ip -net $CLIENT_NS route add $SERVER_IP4 dev link0 via $CLIENT_GW4
+	ip -net $CLIENT_NS route add $SERVER_IP6 dev link0 via $CLIENT_GW6
+	ip -net $CLIENT_NS link set dev link0 \
+		gro_ipv4_max_size $MAX_SIZE gso_ipv4_max_size $MAX_SIZE
+	ip -net $CLIENT_NS link set dev link0 \
+		gro_max_size $MAX_SIZE gso_max_size $MAX_SIZE
+	ip net exec $CLIENT_NS sysctl -wq net.ipv4.tcp_window_scaling=10
+
+	ip -net $ROUTER_NS link set link1 up
+	ip -net $ROUTER_NS link set link2 up
+	ip -net $ROUTER_NS addr add $CLIENT_GW4/24 dev link1
+	ip -net $ROUTER_NS addr add $CLIENT_GW6/64 dev link1 nodad
+	ip -net $ROUTER_NS addr add $SERVER_GW4/24 dev link2
+	ip -net $ROUTER_NS addr add $SERVER_GW6/64 dev link2 nodad
+	ip -net $ROUTER_NS link set dev link1 \
+		gro_ipv4_max_size $MAX_SIZE gso_ipv4_max_size $MAX_SIZE
+	ip -net $ROUTER_NS link set dev link2 \
+		gro_ipv4_max_size $MAX_SIZE gso_ipv4_max_size $MAX_SIZE
+	ip -net $ROUTER_NS link set dev link1 \
+		gro_max_size $MAX_SIZE gso_max_size $MAX_SIZE
+	ip -net $ROUTER_NS link set dev link2 \
+		gro_max_size $MAX_SIZE gso_max_size $MAX_SIZE
+	# test for nf_ct_skb_network_trim in nf_conntrack_ovs used by TC ct action.
+	ip net exec $ROUTER_NS tc qdisc add dev link1 ingress
+	ip net exec $ROUTER_NS tc filter add dev link1 ingress \
+		proto ip flower ip_proto tcp action ct
+	ip net exec $ROUTER_NS tc filter add dev link1 ingress \
+		proto ipv6 flower ip_proto tcp action ct
+	ip net exec $ROUTER_NS sysctl -wq net.ipv4.ip_forward=1
+	ip net exec $ROUTER_NS sysctl -wq net.ipv6.conf.all.forwarding=1
+
+	ip -net $SERVER_NS link set link3 up
+	ip -net $SERVER_NS addr add $SERVER_IP4/24 dev link3
+	ip -net $SERVER_NS addr add $SERVER_IP6/64 dev link3 nodad
+	ip -net $SERVER_NS route add $CLIENT_IP4 dev link3 via $SERVER_GW4
+	ip -net $SERVER_NS route add $CLIENT_IP6 dev link3 via $SERVER_GW6
+	ip -net $SERVER_NS link set dev link3 \
+		gro_ipv4_max_size $MAX_SIZE gso_ipv4_max_size $MAX_SIZE
+	ip -net $SERVER_NS link set dev link3 \
+		gro_max_size $MAX_SIZE gso_max_size $MAX_SIZE
+	ip net exec $SERVER_NS sysctl -wq net.ipv4.tcp_window_scaling=10
+	ip net exec $SERVER_NS netserver 2>&1 >/dev/null
+}
+
+cleanup() {
+	ip net exec $SERVER_NS pkill netserver
+	ip -net $ROUTER_NS link del link1
+	ip -net $ROUTER_NS link del link2
+	ip netns del "$CLIENT_NS"
+	ip netns del "$SERVER_NS"
+	ip netns del "$ROUTER_NS"
+}
+
+start_counter() {
+	local ipt="iptables"
+	local iface=$1
+	local netns=$2
+
+	[ "$NF" = "6" ] && ipt="ip6tables"
+	ip net exec $netns $ipt -t raw -A PREROUTING -i $iface \
+		-m length ! --length 0:$CHK_SIZE -j ACCEPT
+}
+
+check_counter() {
+	local ipt="iptables"
+	local iface=$1
+	local netns=$2
+
+	[ "$NF" = "6" ] && ipt="ip6tables"
+	test `ip net exec $netns $ipt -t raw -L -v |grep $iface | awk '{print $1}'` != "0"
+}
+
+stop_counter() {
+	local ipt="iptables"
+	local iface=$1
+	local netns=$2
+
+	[ "$NF" = "6" ] && ipt="ip6tables"
+	ip net exec $netns $ipt -t raw -D PREROUTING -i $iface \
+		-m length ! --length 0:$CHK_SIZE -j ACCEPT
+}
+
+do_netperf() {
+	local serip=$SERVER_IP4
+	local netns=$1
+
+	[ "$NF" = "6" ] && serip=$SERVER_IP6
+
+	# use large write to be sure to generate big tcp packets
+	ip net exec $netns netperf -$NF -t TCP_STREAM -l 1 -H $serip -- -m 262144 2>&1 >/dev/null
+}
+
+do_test() {
+	local cli_tso=$1
+	local gw_gro=$2
+	local gw_tso=$3
+	local ser_gro=$4
+	local ret="PASS"
+
+	ip net exec $CLIENT_NS ethtool -K link0 tso $cli_tso
+	ip net exec $ROUTER_NS ethtool -K link1 gro $gw_gro
+	ip net exec $ROUTER_NS ethtool -K link2 tso $gw_tso
+	ip net exec $SERVER_NS ethtool -K link3 gro $ser_gro
+
+	start_counter link1 $ROUTER_NS
+	start_counter link3 $SERVER_NS
+	do_netperf $CLIENT_NS
+
+	if check_counter link1 $ROUTER_NS; then
+		check_counter link3 $SERVER_NS || ret="FAIL_on_link3"
+	else
+		ret="FAIL_on_link1"
+	fi
+
+	stop_counter link1 $ROUTER_NS
+	stop_counter link3 $SERVER_NS
+	printf "%-9s %-8s %-8s %-8s: [%s]\n" \
+		$cli_tso $gw_gro $gw_tso $ser_gro $ret
+	test $ret = "PASS"
+}
+
+testup() {
+	echo "CLI GSO | GW GRO | GW GSO | SER GRO" && \
+	do_test "on"  "on"  "on"  "on"  && \
+	do_test "on"  "off" "on"  "off" && \
+	do_test "off" "on"  "on"  "on"  && \
+	do_test "on"  "on"  "off" "on"  && \
+	do_test "off" "on"  "off" "on"
+}
+
+if ! netperf -V &> /dev/null; then
+	echo "SKIP: Could not run test without netperf tool"
+	exit $ksft_skip
+fi
+
+if ! ip link help 2>&1 | grep gso_ipv4_max_size &> /dev/null; then
+	echo "SKIP: Could not run test without gso/gro_ipv4_max_size supported in ip-link"
+	exit $ksft_skip
+fi
+
+trap cleanup EXIT
+setup && echo "Testing for BIG TCP:" && \
+NF=4 testup && echo "***v4 Tests Done***" && \
+NF=6 testup && echo "***v6 Tests Done***"
+exit $?
diff --git a/tools/testing/selftests/net/bind_bhash.c b/tools/testing/selftests/net/bind_bhash.c
new file mode 100644
index 000000000000..da04b0b19b73
--- /dev/null
+++ b/tools/testing/selftests/net/bind_bhash.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This times how long it takes to bind to a port when the port already
+ * has multiple sockets in its bhash table.
+ *
+ * In the setup(), we populate the port's bhash table with
+ * MAX_THREADS * MAX_CONNECTIONS number of entries.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <netdb.h>
+#include <pthread.h>
+#include <string.h>
+#include <stdbool.h>
+
+#define MAX_THREADS 600
+#define MAX_CONNECTIONS 40
+
+static const char *setup_addr_v6 = "::1";
+static const char *setup_addr_v4 = "127.0.0.1";
+static const char *setup_addr;
+static const char *bind_addr;
+static const char *port;
+bool use_v6;
+int ret;
+
+static int fd_array[MAX_THREADS][MAX_CONNECTIONS];
+
+static int bind_socket(int opt, const char *addr)
+{
+	struct addrinfo *res, hint = {};
+	int sock_fd, reuse = 1, err;
+	int domain = use_v6 ? AF_INET6 : AF_INET;
+
+	sock_fd = socket(domain, SOCK_STREAM, 0);
+	if (sock_fd < 0) {
+		perror("socket fd err");
+		return sock_fd;
+	}
+
+	hint.ai_family = domain;
+	hint.ai_socktype = SOCK_STREAM;
+
+	err = getaddrinfo(addr, port, &hint, &res);
+	if (err) {
+		perror("getaddrinfo failed");
+		goto cleanup;
+	}
+
+	if (opt) {
+		err = setsockopt(sock_fd, SOL_SOCKET, opt, &reuse, sizeof(reuse));
+		if (err) {
+			perror("setsockopt failed");
+			goto cleanup;
+		}
+	}
+
+	err = bind(sock_fd, res->ai_addr, res->ai_addrlen);
+	if (err) {
+		perror("failed to bind to port");
+		goto cleanup;
+	}
+
+	return sock_fd;
+
+cleanup:
+	close(sock_fd);
+	return err;
+}
+
+static void *setup(void *arg)
+{
+	int sock_fd, i;
+	int *array = (int *)arg;
+
+	for (i = 0; i < MAX_CONNECTIONS; i++) {
+		sock_fd = bind_socket(SO_REUSEPORT, setup_addr);
+		if (sock_fd < 0) {
+			ret = sock_fd;
+			pthread_exit(&ret);
+		}
+		array[i] = sock_fd;
+	}
+
+	return NULL;
+}
+
+int main(int argc, const char *argv[])
+{
+	int listener_fd, sock_fd, i, j;
+	pthread_t tid[MAX_THREADS];
+	clock_t begin, end;
+
+	if (argc != 4) {
+		printf("Usage: listener <port> <ipv6 | ipv4> <bind-addr>\n");
+		return -1;
+	}
+
+	port = argv[1];
+	use_v6 = strcmp(argv[2], "ipv6") == 0;
+	bind_addr = argv[3];
+
+	setup_addr = use_v6 ? setup_addr_v6 : setup_addr_v4;
+
+	listener_fd = bind_socket(SO_REUSEPORT, setup_addr);
+	if (listen(listener_fd, 100) < 0) {
+		perror("listen failed");
+		return -1;
+	}
+
+	/* Set up threads to populate the bhash table entry for the port */
+	for (i = 0; i < MAX_THREADS; i++)
+		pthread_create(&tid[i], NULL, setup, fd_array[i]);
+
+	for (i = 0; i < MAX_THREADS; i++)
+		pthread_join(tid[i], NULL);
+
+	if (ret)
+		goto done;
+
+	begin = clock();
+
+	/* Bind to the same port on a different address */
+	sock_fd  = bind_socket(0, bind_addr);
+	if (sock_fd < 0)
+		goto done;
+
+	end = clock();
+
+	printf("time spent = %f\n", (double)(end - begin) / CLOCKS_PER_SEC);
+
+	/* clean up */
+	close(sock_fd);
+
+done:
+	close(listener_fd);
+	for (i = 0; i < MAX_THREADS; i++) {
+		for (j = 0; i < MAX_THREADS; i++)
+			close(fd_array[i][j]);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/bind_bhash.sh b/tools/testing/selftests/net/bind_bhash.sh
new file mode 100755
index 000000000000..a28563bdaae0
--- /dev/null
+++ b/tools/testing/selftests/net/bind_bhash.sh
@@ -0,0 +1,68 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+NR_FILES=32768
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+# default values
+port=443
+addr_v6="2001:0db8:0:f101::1"
+addr_v4="10.8.8.8"
+use_v6=true
+addr=""
+
+usage() {
+    echo "Usage: $0 [-6 | -4] [-p port] [-a address]"
+    echo -e "\t6: use ipv6"
+    echo -e "\t4: use ipv4"
+    echo -e "\tport: Port number"
+    echo -e "\taddress: ip address"
+}
+
+while getopts "ha:p:64" opt; do
+    case ${opt} in
+	h)
+	    usage $0
+	    exit 0
+	    ;;
+	a)  addr=$OPTARG;;
+	p)
+	    port=$OPTARG;;
+	6)
+	    use_v6=true;;
+	4)
+	    use_v6=false;;
+    esac
+done
+
+setup() {
+    ip netns add "${NETNS}"
+    ip -netns "${NETNS}" link add veth0 type veth peer name veth1
+    ip -netns "${NETNS}" link set lo up
+    ip -netns "${NETNS}" link set veth0 up
+    ip -netns "${NETNS}" link set veth1 up
+
+    if [[ "$use_v6" == true ]]; then
+        ip -netns "${NETNS}" addr add $addr_v6 nodad dev veth0
+    else
+        ip -netns "${NETNS}" addr add $addr_v4 dev lo
+    fi
+}
+
+cleanup() {
+    ip netns del "${NETNS}"
+}
+
+if [[ "$addr" != "" ]]; then
+    addr_v4=$addr;
+    addr_v6=$addr;
+fi
+setup
+if [[ "$use_v6" == true ]] ; then
+    ip netns exec "${NETNS}" sh -c \
+        "ulimit -n ${NR_FILES};./bind_bhash ${port} ipv6 ${addr_v6}"
+else
+    ip netns exec "${NETNS}" sh -c \
+        "ulimit -n ${NR_FILES};./bind_bhash ${port} ipv4 ${addr_v4}"
+fi
+cleanup
diff --git a/tools/testing/selftests/net/bind_timewait.c b/tools/testing/selftests/net/bind_timewait.c
new file mode 100644
index 000000000000..40126f9b901e
--- /dev/null
+++ b/tools/testing/selftests/net/bind_timewait.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "kselftest_harness.h"
+
+FIXTURE(bind_timewait)
+{
+	struct sockaddr_in addr;
+	socklen_t addrlen;
+};
+
+FIXTURE_VARIANT(bind_timewait)
+{
+	__u32 addr_const;
+};
+
+FIXTURE_VARIANT_ADD(bind_timewait, localhost)
+{
+	.addr_const = INADDR_LOOPBACK
+};
+
+FIXTURE_VARIANT_ADD(bind_timewait, addrany)
+{
+	.addr_const = INADDR_ANY
+};
+
+FIXTURE_SETUP(bind_timewait)
+{
+	self->addr.sin_family = AF_INET;
+	self->addr.sin_port = 0;
+	self->addr.sin_addr.s_addr = htonl(variant->addr_const);
+	self->addrlen = sizeof(self->addr);
+}
+
+FIXTURE_TEARDOWN(bind_timewait)
+{
+}
+
+void create_timewait_socket(struct __test_metadata *_metadata,
+			    FIXTURE_DATA(bind_timewait) *self)
+{
+	int server_fd, client_fd, child_fd, ret;
+	struct sockaddr_in addr;
+	socklen_t addrlen;
+
+	server_fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GT(server_fd, 0);
+
+	ret = bind(server_fd, (struct sockaddr *)&self->addr, self->addrlen);
+	ASSERT_EQ(ret, 0);
+
+	ret = listen(server_fd, 1);
+	ASSERT_EQ(ret, 0);
+
+	ret = getsockname(server_fd, (struct sockaddr *)&self->addr, &self->addrlen);
+	ASSERT_EQ(ret, 0);
+
+	client_fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GT(client_fd, 0);
+
+	ret = connect(client_fd, (struct sockaddr *)&self->addr, self->addrlen);
+	ASSERT_EQ(ret, 0);
+
+	addrlen = sizeof(addr);
+	child_fd = accept(server_fd, (struct sockaddr *)&addr, &addrlen);
+	ASSERT_GT(child_fd, 0);
+
+	close(child_fd);
+	close(client_fd);
+	close(server_fd);
+}
+
+TEST_F(bind_timewait, 1)
+{
+	int fd, ret;
+
+	create_timewait_socket(_metadata, self);
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_GT(fd, 0);
+
+	ret = bind(fd, (struct sockaddr *)&self->addr, self->addrlen);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EADDRINUSE);
+
+	close(fd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/bind_wildcard.c b/tools/testing/selftests/net/bind_wildcard.c
new file mode 100644
index 000000000000..7d11548b2c61
--- /dev/null
+++ b/tools/testing/selftests/net/bind_wildcard.c
@@ -0,0 +1,809 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+
+#include <sys/socket.h>
+#include <netinet/in.h>
+
+#include "kselftest_harness.h"
+
+static const __u32 in4addr_any = INADDR_ANY;
+static const __u32 in4addr_loopback = INADDR_LOOPBACK;
+static const struct in6_addr in6addr_v4mapped_any = {
+	.s6_addr = {
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 255, 255,
+		0, 0, 0, 0
+	}
+};
+static const struct in6_addr in6addr_v4mapped_loopback = {
+	.s6_addr = {
+		0, 0, 0, 0,
+		0, 0, 0, 0,
+		0, 0, 255, 255,
+		127, 0, 0, 1
+	}
+};
+
+#define NR_SOCKETS 8
+
+FIXTURE(bind_wildcard)
+{
+	int fd[NR_SOCKETS];
+	socklen_t addrlen[NR_SOCKETS];
+	union {
+		struct sockaddr addr;
+		struct sockaddr_in addr4;
+		struct sockaddr_in6 addr6;
+	} addr[NR_SOCKETS];
+};
+
+FIXTURE_VARIANT(bind_wildcard)
+{
+	sa_family_t family[2];
+	const void *addr[2];
+	bool ipv6_only[2];
+
+	/* 6 bind() calls below follow two bind() for the defined 2 addresses:
+	 *
+	 *   0.0.0.0
+	 *   127.0.0.1
+	 *   ::
+	 *   ::1
+	 *   ::ffff:0.0.0.0
+	 *   ::ffff:127.0.0.1
+	 */
+	int expected_errno[NR_SOCKETS];
+	int expected_reuse_errno[NR_SOCKETS];
+};
+
+/* (IPv4, IPv4) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v4_local)
+{
+	.family = {AF_INET, AF_INET},
+	.addr = {&in4addr_any, &in4addr_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v4_any)
+{
+	.family = {AF_INET, AF_INET},
+	.addr = {&in4addr_loopback, &in4addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv4, IPv6) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_any, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_any_only)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_any, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_local)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_any, &in6addr_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_any)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_any, &in6addr_v4mapped_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_any_v6_v4mapped_local)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_any, &in6addr_v4mapped_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_loopback, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_any_only)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_loopback, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_local)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_loopback, &in6addr_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_any)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_loopback, &in6addr_v4mapped_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v4_local_v6_v4mapped_local)
+{
+	.family = {AF_INET, AF_INET6},
+	.addr = {&in4addr_loopback, &in6addr_v4mapped_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv6, IPv4) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v4_any)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_any, &in4addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v4_any)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_any, &in4addr_any},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v4_local)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_any, &in4addr_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v4_local)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_any, &in4addr_loopback},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v4_any)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_loopback, &in4addr_any},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v4_local)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_loopback, &in4addr_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v4_any)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_v4mapped_any, &in4addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v4_local)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_v4mapped_any, &in4addr_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_local_v4_any)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_v4mapped_loopback, &in4addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_local_v4_local)
+{
+	.family = {AF_INET6, AF_INET},
+	.addr = {&in6addr_v4mapped_loopback, &in4addr_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+/* (IPv6, IPv6) */
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_any},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, EADDRINUSE,
+			   0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_any_only)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_any_only)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_any},
+	.ipv6_only = {true, true},
+	.expected_errno = {0, EADDRINUSE,
+			   0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 0, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_loopback},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, EADDRINUSE,
+			   0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 0, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_v4mapped_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_v4mapped_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_v4mapped_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_v4mapped_any},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_v6_v4mapped_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_v4mapped_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_any_only_v6_v4mapped_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_any, &in6addr_v4mapped_loopback},
+	.ipv6_only = {true, false},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_loopback, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_any_only)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_loopback, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, EADDRINUSE,
+			   0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 0, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_v4mapped_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_loopback, &in6addr_v4mapped_any},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_local_v6_v4mapped_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_loopback, &in6addr_v4mapped_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_any, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_any_only)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_any, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_any, &in6addr_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_any_v6_v4mapped_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_any, &in6addr_v4mapped_loopback},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_loopback, &in6addr_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_any_only)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_loopback, &in6addr_any},
+	.ipv6_only = {false, true},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_local)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_loopback, &in6addr_loopback},
+	.expected_errno = {0, 0,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+FIXTURE_VARIANT_ADD(bind_wildcard, v6_v4mapped_loopback_v6_v4mapped_any)
+{
+	.family = {AF_INET6, AF_INET6},
+	.addr = {&in6addr_v4mapped_loopback, &in6addr_v4mapped_any},
+	.expected_errno = {0, EADDRINUSE,
+			   EADDRINUSE, EADDRINUSE,
+			   EADDRINUSE, 0,
+			   EADDRINUSE, EADDRINUSE},
+	.expected_reuse_errno = {0, 0,
+				 EADDRINUSE, EADDRINUSE,
+				 EADDRINUSE, 0,
+				 EADDRINUSE, EADDRINUSE},
+};
+
+static void setup_addr(FIXTURE_DATA(bind_wildcard) *self, int i,
+		       int family, const void *addr_const)
+{
+	if (family == AF_INET) {
+		struct sockaddr_in *addr4 = &self->addr[i].addr4;
+		const __u32 *addr4_const = addr_const;
+
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(0);
+		addr4->sin_addr.s_addr = htonl(*addr4_const);
+
+		self->addrlen[i] = sizeof(struct sockaddr_in);
+	} else {
+		struct sockaddr_in6 *addr6 = &self->addr[i].addr6;
+		const struct in6_addr *addr6_const = addr_const;
+
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(0);
+		addr6->sin6_addr = *addr6_const;
+
+		self->addrlen[i] = sizeof(struct sockaddr_in6);
+	}
+}
+
+FIXTURE_SETUP(bind_wildcard)
+{
+	setup_addr(self, 0, variant->family[0], variant->addr[0]);
+	setup_addr(self, 1, variant->family[1], variant->addr[1]);
+
+	setup_addr(self, 2, AF_INET, &in4addr_any);
+	setup_addr(self, 3, AF_INET, &in4addr_loopback);
+
+	setup_addr(self, 4, AF_INET6, &in6addr_any);
+	setup_addr(self, 5, AF_INET6, &in6addr_loopback);
+	setup_addr(self, 6, AF_INET6, &in6addr_v4mapped_any);
+	setup_addr(self, 7, AF_INET6, &in6addr_v4mapped_loopback);
+}
+
+FIXTURE_TEARDOWN(bind_wildcard)
+{
+	int i;
+
+	for (i = 0; i < NR_SOCKETS; i++)
+		close(self->fd[i]);
+}
+
+void bind_socket(struct __test_metadata *_metadata,
+		 FIXTURE_DATA(bind_wildcard) *self,
+		 const FIXTURE_VARIANT(bind_wildcard) *variant,
+		 int i, int reuse)
+{
+	int ret;
+
+	self->fd[i] = socket(self->addr[i].addr.sa_family, SOCK_STREAM, 0);
+	ASSERT_GT(self->fd[i], 0);
+
+	if (i < 2 && variant->ipv6_only[i]) {
+		ret = setsockopt(self->fd[i], SOL_IPV6, IPV6_V6ONLY, &(int){1}, sizeof(int));
+		ASSERT_EQ(ret, 0);
+	}
+
+	if (i < 2 && reuse) {
+		ret = setsockopt(self->fd[i], SOL_SOCKET, reuse, &(int){1}, sizeof(int));
+		ASSERT_EQ(ret, 0);
+	}
+
+	self->addr[i].addr4.sin_port = self->addr[0].addr4.sin_port;
+
+	ret = bind(self->fd[i], &self->addr[i].addr, self->addrlen[i]);
+
+	if (reuse) {
+		if (variant->expected_reuse_errno[i]) {
+			ASSERT_EQ(ret, -1);
+			ASSERT_EQ(errno, variant->expected_reuse_errno[i]);
+		} else {
+			ASSERT_EQ(ret, 0);
+		}
+	} else {
+		if (variant->expected_errno[i]) {
+			ASSERT_EQ(ret, -1);
+			ASSERT_EQ(errno, variant->expected_errno[i]);
+		} else {
+			ASSERT_EQ(ret, 0);
+		}
+	}
+
+	if (i == 0) {
+		ret = getsockname(self->fd[0], &self->addr[0].addr, &self->addrlen[0]);
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+TEST_F(bind_wildcard, plain)
+{
+	int i;
+
+	for (i = 0; i < NR_SOCKETS; i++)
+		bind_socket(_metadata, self, variant, i, 0);
+}
+
+TEST_F(bind_wildcard, reuseaddr)
+{
+	int i;
+
+	for (i = 0; i < NR_SOCKETS; i++)
+		bind_socket(_metadata, self, variant, i, SO_REUSEADDR);
+}
+
+TEST_F(bind_wildcard, reuseport)
+{
+	int i;
+
+	for (i = 0; i < NR_SOCKETS; i++)
+		bind_socket(_metadata, self, variant, i, SO_REUSEPORT);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/bpf.mk b/tools/testing/selftests/net/bpf.mk
new file mode 100644
index 000000000000..a4f6755dd894
--- /dev/null
+++ b/tools/testing/selftests/net/bpf.mk
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0
+# Rules to generate bpf objs
+CLANG ?= clang
+SCRATCH_DIR := $(OUTPUT)/tools
+BUILD_DIR := $(SCRATCH_DIR)/build
+BPFDIR := $(top_srcdir)/tools/lib/bpf
+APIDIR := $(top_srcdir)/tools/include/uapi
+
+CCINCLUDE += -I$(selfdir)/bpf
+CCINCLUDE += -I$(top_srcdir)/usr/include/
+CCINCLUDE += -I$(SCRATCH_DIR)/include
+
+BPFOBJ := $(BUILD_DIR)/libbpf/libbpf.a
+
+MAKE_DIRS := $(BUILD_DIR)/libbpf
+$(MAKE_DIRS):
+	$(call msg,MKDIR,,$@)
+	$(Q)mkdir -p $@
+
+# Get Clang's default includes on this system, as opposed to those seen by
+# '--target=bpf'. This fixes "missing" files on some architectures/distros,
+# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
+#
+# Use '-idirafter': Don't interfere with include mechanics except where the
+# build would have failed anyways.
+define get_sys_includes
+$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
+	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
+$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')
+endef
+
+ifneq ($(CROSS_COMPILE),)
+CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif
+
+CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
+
+BPF_PROG_OBJS := $(patsubst %.c,$(OUTPUT)/%.o,$(wildcard *.bpf.c))
+
+$(BPF_PROG_OBJS): $(OUTPUT)/%.o : %.c $(BPFOBJ) | $(MAKE_DIRS)
+	$(call msg,BPF_PROG,,$@)
+	$(Q)$(CLANG) -O2 -g --target=bpf $(CCINCLUDE) $(CLANG_SYS_INCLUDES) \
+	-c $< -o $@
+
+$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)		       \
+	   $(APIDIR)/linux/bpf.h					       \
+	   | $(BUILD_DIR)/libbpf
+	$(call msg,MAKE,,$@)
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(BUILD_DIR)/libbpf/ \
+		    EXTRA_CFLAGS='-g -O0'				       \
+		    DESTDIR=$(SCRATCH_DIR) prefix= all install_headers
+
+EXTRA_CLEAN += $(SCRATCH_DIR)
diff --git a/tools/testing/selftests/net/bpf_offload.py b/tools/testing/selftests/net/bpf_offload.py
new file mode 100755
index 000000000000..c856d266c8f3
--- /dev/null
+++ b/tools/testing/selftests/net/bpf_offload.py
@@ -0,0 +1,1357 @@
+#!/usr/bin/env python3
+
+# Copyright (C) 2017 Netronome Systems, Inc.
+# Copyright (c) 2019 Mellanox Technologies. All rights reserved
+#
+# This software is licensed under the GNU General License Version 2,
+# June 1991 as shown in the file COPYING in the top-level directory of this
+# source tree.
+#
+# THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS"
+# WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+# BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE
+# OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME
+# THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+from datetime import datetime
+import argparse
+import errno
+import json
+import os
+import pprint
+import random
+import re
+import stat
+import string
+import struct
+import subprocess
+import time
+import traceback
+
+from lib.py import NetdevSim, NetdevSimDev
+
+
+logfile = None
+log_level = 1
+skip_extack = False
+bpf_test_dir = os.path.dirname(os.path.realpath(__file__))
+pp = pprint.PrettyPrinter()
+devs = [] # devices we created for clean up
+files = [] # files to be removed
+netns = [] # net namespaces to be removed
+
+def log_get_sec(level=0):
+    return "*" * (log_level + level)
+
+def log_level_inc(add=1):
+    global log_level
+    log_level += add
+
+def log_level_dec(sub=1):
+    global log_level
+    log_level -= sub
+
+def log_level_set(level):
+    global log_level
+    log_level = level
+
+def log(header, data, level=None):
+    """
+    Output to an optional log.
+    """
+    if logfile is None:
+        return
+    if level is not None:
+        log_level_set(level)
+
+    if not isinstance(data, str):
+        data = pp.pformat(data)
+
+    if len(header):
+        logfile.write("\n" + log_get_sec() + " ")
+        logfile.write(header)
+    if len(header) and len(data.strip()):
+        logfile.write("\n")
+    logfile.write(data)
+
+def skip(cond, msg):
+    if not cond:
+        return
+    print("SKIP: " + msg)
+    log("SKIP: " + msg, "", level=1)
+    os.sys.exit(0)
+
+def fail(cond, msg):
+    if not cond:
+        return
+    print("FAIL: " + msg)
+    tb = "".join(traceback.extract_stack().format())
+    print(tb)
+    log("FAIL: " + msg, tb, level=1)
+    os.sys.exit(1)
+
+def start_test(msg):
+    log(msg, "", level=1)
+    log_level_inc()
+    print(msg)
+
+def cmd(cmd, shell=True, include_stderr=False, background=False, fail=True):
+    """
+    Run a command in subprocess and return tuple of (retval, stdout);
+    optionally return stderr as well as third value.
+    """
+    proc = subprocess.Popen(cmd, shell=shell, stdout=subprocess.PIPE,
+                            stderr=subprocess.PIPE)
+    if background:
+        msg = "%s START: %s" % (log_get_sec(1),
+                                datetime.now().strftime("%H:%M:%S.%f"))
+        log("BKG " + proc.args, msg)
+        return proc
+
+    return cmd_result(proc, include_stderr=include_stderr, fail=fail)
+
+def cmd_result(proc, include_stderr=False, fail=False):
+    stdout, stderr = proc.communicate()
+    stdout = stdout.decode("utf-8")
+    stderr = stderr.decode("utf-8")
+    proc.stdout.close()
+    proc.stderr.close()
+
+    stderr = "\n" + stderr
+    if stderr[-1] == "\n":
+        stderr = stderr[:-1]
+
+    sec = log_get_sec(1)
+    log("CMD " + proc.args,
+        "RETCODE: %d\n%s STDOUT:\n%s%s STDERR:%s\n%s END: %s" %
+        (proc.returncode, sec, stdout, sec, stderr,
+         sec, datetime.now().strftime("%H:%M:%S.%f")))
+
+    if proc.returncode != 0 and fail:
+        if len(stderr) > 0 and stderr[-1] == "\n":
+            stderr = stderr[:-1]
+        raise Exception("Command failed: %s\n%s" % (proc.args, stderr))
+
+    if include_stderr:
+        return proc.returncode, stdout, stderr
+    else:
+        return proc.returncode, stdout
+
+def rm(f):
+    cmd("rm -f %s" % (f))
+    if f in files:
+        files.remove(f)
+
+def tool(name, args, flags, JSON=True, ns="", fail=True, include_stderr=False):
+    params = ""
+    if JSON:
+        params += "%s " % (flags["json"])
+
+    if ns:
+        ns = "ip netns exec %s " % (ns)
+    elif ns is None:
+        ns = ""
+
+    if include_stderr:
+        ret, stdout, stderr = cmd(ns + name + " " + params + args,
+                                  fail=fail, include_stderr=True)
+    else:
+        ret, stdout = cmd(ns + name + " " + params + args,
+                          fail=fail, include_stderr=False)
+
+    if JSON and len(stdout.strip()) != 0:
+        out = json.loads(stdout)
+    else:
+        out = stdout
+
+    if include_stderr:
+        return ret, out, stderr
+    else:
+        return ret, out
+
+def bpftool(args, JSON=True, ns="", fail=True, include_stderr=False):
+    return tool("bpftool", args, {"json":"-p"}, JSON=JSON, ns=ns,
+                fail=fail, include_stderr=include_stderr)
+
+def bpftool_prog_list(expected=None, ns="", exclude_orphaned=True):
+    _, progs = bpftool("prog show", JSON=True, ns=ns, fail=True)
+    # Remove the base progs
+    for p in base_progs:
+        if p in progs:
+            progs.remove(p)
+    if exclude_orphaned:
+        progs = [ p for p in progs if not p['orphaned'] ]
+    if expected is not None:
+        if len(progs) != expected:
+            fail(True, "%d BPF programs loaded, expected %d\nLoaded Progs:\n%s" %
+                 (len(progs), expected, pp.pformat(progs)))
+    return progs
+
+def bpftool_map_list(expected=None, ns=""):
+    _, maps = bpftool("map show", JSON=True, ns=ns, fail=True)
+    # Remove the base maps
+    maps = [m for m in maps if m not in base_maps and m.get('name') and m.get('name') not in base_map_names]
+    if expected is not None:
+        if len(maps) != expected:
+            fail(True, "%d BPF maps loaded, expected %d" %
+                 (len(maps), expected))
+    return maps
+
+def bpftool_prog_list_wait(expected=0, n_retry=20):
+    for i in range(n_retry):
+        nprogs = len(bpftool_prog_list())
+        if nprogs == expected:
+            return
+        time.sleep(0.05)
+    raise Exception("Time out waiting for program counts to stabilize want %d, have %d" % (expected, nprogs))
+
+def bpftool_map_list_wait(expected=0, n_retry=20, ns=""):
+    nmaps = None
+    for i in range(n_retry):
+        maps = bpftool_map_list(ns=ns)
+        nmaps = len(maps)
+        if nmaps == expected:
+            return maps
+        time.sleep(0.05)
+    raise Exception("Time out waiting for map counts to stabilize want %d, have %d" % (expected, nmaps))
+
+def bpftool_prog_load(sample, file_name, maps=[], prog_type="xdp", dev=None,
+                      fail=True, include_stderr=False, dev_bind=None):
+    args = "prog load %s %s" % (os.path.join(bpf_test_dir, sample), file_name)
+    if prog_type is not None:
+        args += " type " + prog_type
+    if dev is not None:
+        args += " dev " + dev
+    elif dev_bind is not None:
+        args += " xdpmeta_dev " + dev_bind
+    if len(maps):
+        args += " map " + " map ".join(maps)
+
+    res = bpftool(args, fail=fail, include_stderr=include_stderr)
+    if res[0] == 0:
+        files.append(file_name)
+    return res
+
+def ip(args, force=False, JSON=True, ns="", fail=True, include_stderr=False):
+    if force:
+        args = "-force " + args
+    return tool("ip", args, {"json":"-j"}, JSON=JSON, ns=ns,
+                fail=fail, include_stderr=include_stderr)
+
+def tc(args, JSON=True, ns="", fail=True, include_stderr=False):
+    return tool("tc", args, {"json":"-p"}, JSON=JSON, ns=ns,
+                fail=fail, include_stderr=include_stderr)
+
+def ethtool(dev, opt, args, fail=True):
+    return cmd("ethtool %s %s %s" % (opt, dev["ifname"], args), fail=fail)
+
+def bpf_obj(name, sec="xdp", path=bpf_test_dir,):
+    return "obj %s sec %s" % (os.path.join(path, name), sec)
+
+def bpf_pinned(name):
+    return "pinned %s" % (name)
+
+def bpf_bytecode(bytecode):
+    return "bytecode \"%s\"" % (bytecode)
+
+def mknetns(n_retry=10):
+    for i in range(n_retry):
+        name = ''.join([random.choice(string.ascii_letters) for i in range(8)])
+        ret, _ = ip("netns add %s" % (name), fail=False)
+        if ret == 0:
+            netns.append(name)
+            return name
+    return None
+
+def int2str(fmt, val):
+    ret = []
+    for b in struct.pack(fmt, val):
+        ret.append(int(b))
+    return " ".join(map(lambda x: str(x), ret))
+
+def str2int(strtab):
+    inttab = []
+    for i in strtab:
+        inttab.append(int(i, 16))
+    ba = bytearray(inttab)
+    if len(strtab) == 4:
+        fmt = "I"
+    elif len(strtab) == 8:
+        fmt = "Q"
+    else:
+        raise Exception("String array of len %d can't be unpacked to an int" %
+                        (len(strtab)))
+    return struct.unpack(fmt, ba)[0]
+
+class DebugfsDir:
+    """
+    Class for accessing DebugFS directories as a dictionary.
+    """
+
+    def __init__(self, path):
+        self.path = path
+        self._dict = self._debugfs_dir_read(path)
+
+    def __len__(self):
+        return len(self._dict.keys())
+
+    def __getitem__(self, key):
+        if type(key) is int:
+            key = list(self._dict.keys())[key]
+        return self._dict[key]
+
+    def __setitem__(self, key, value):
+        log("DebugFS set %s = %s" % (key, value), "")
+        log_level_inc()
+
+        cmd("echo '%s' > %s/%s" % (value, self.path, key))
+        log_level_dec()
+
+        _, out = cmd('cat %s/%s' % (self.path, key))
+        self._dict[key] = out.strip()
+
+    def _debugfs_dir_read(self, path):
+        dfs = {}
+
+        log("DebugFS state for %s" % (path), "")
+        log_level_inc(add=2)
+
+        _, out = cmd('ls ' + path)
+        for f in out.split():
+            if f == "ports":
+                continue
+
+            p = os.path.join(path, f)
+            if not os.stat(p).st_mode & stat.S_IRUSR:
+                continue
+
+            if os.path.isfile(p):
+                # We need to init trap_flow_action_cookie before read it
+                if f == "trap_flow_action_cookie":
+                    cmd('echo deadbeef > %s/%s' % (path, f))
+                _, out = cmd('cat %s/%s' % (path, f))
+                dfs[f] = out.strip()
+            elif os.path.isdir(p):
+                dfs[f] = DebugfsDir(p)
+            else:
+                raise Exception("%s is neither file nor directory" % (p))
+
+        log_level_dec()
+        log("DebugFS state", dfs)
+        log_level_dec()
+
+        return dfs
+
+class BpfNetdevSimDev(NetdevSimDev):
+    """
+    Class for netdevsim bus device and its attributes.
+    """
+    def __init__(self, port_count=1, ns=None):
+        super().__init__(port_count, ns=ns)
+        devs.append(self)
+
+    def _make_port(self, port_index, ifname):
+        return BpfNetdevSim(self, port_index, ifname, self.ns)
+
+    def dfs_num_bound_progs(self):
+        path = os.path.join(self.dfs_dir, "bpf_bound_progs")
+        _, progs = cmd('ls %s' % (path))
+        return len(progs.split())
+
+    def dfs_get_bound_progs(self, expected):
+        progs = DebugfsDir(os.path.join(self.dfs_dir, "bpf_bound_progs"))
+        if expected is not None:
+            if len(progs) != expected:
+                fail(True, "%d BPF programs bound, expected %d" %
+                     (len(progs), expected))
+        return progs
+
+    def remove(self):
+        super().remove()
+        devs.remove(self)
+
+
+class BpfNetdevSim(NetdevSim):
+    """
+    Class for netdevsim netdevice and its attributes.
+    """
+
+    def __init__(self, nsimdev, port_index, ifname, ns=None):
+        super().__init__(nsimdev, port_index, ifname, ns=ns)
+
+        self.dfs_dir = "%s/ports/%u/" % (nsimdev.dfs_dir, port_index)
+        self.dfs_refresh()
+
+    def __getitem__(self, key):
+        return self.dev[key]
+
+    def remove(self):
+        self.nsimdev.remove_nsim(self)
+
+    def dfs_refresh(self):
+        self.dfs = DebugfsDir(self.dfs_dir)
+        return self.dfs
+
+    def dfs_read(self, f):
+        path = os.path.join(self.dfs_dir, f)
+        _, data = cmd('cat %s' % (path))
+        return data.strip()
+
+    def wait_for_flush(self, bound=0, total=0, n_retry=20):
+        for i in range(n_retry):
+            nbound = self.nsimdev.dfs_num_bound_progs()
+            nprogs = len(bpftool_prog_list())
+            if nbound == bound and nprogs == total:
+                return
+            time.sleep(0.05)
+        raise Exception("Time out waiting for program counts to stabilize want %d/%d, have %d bound, %d loaded" % (bound, total, nbound, nprogs))
+
+    def set_ns(self, ns):
+        name = ns if ns else "1"
+        ip("link set dev %s netns %s" % (self.dev["ifname"], name), ns=self.ns)
+        self.ns = ns
+
+    def set_mtu(self, mtu, fail=True):
+        return ip("link set dev %s mtu %d" % (self.dev["ifname"], mtu),
+                  fail=fail)
+
+    def set_xdp(self, bpf, mode, force=False, JSON=True, verbose=False,
+                fail=True, include_stderr=False):
+        if verbose:
+            bpf += " verbose"
+        return ip("link set dev %s xdp%s %s" % (self.dev["ifname"], mode, bpf),
+                  force=force, JSON=JSON,
+                  fail=fail, include_stderr=include_stderr)
+
+    def unset_xdp(self, mode, force=False, JSON=True,
+                  fail=True, include_stderr=False):
+        return ip("link set dev %s xdp%s off" % (self.dev["ifname"], mode),
+                  force=force, JSON=JSON,
+                  fail=fail, include_stderr=include_stderr)
+
+    def ip_link_show(self, xdp):
+        _, link = ip("link show dev %s" % (self['ifname']))
+        if len(link) > 1:
+            raise Exception("Multiple objects on ip link show")
+        if len(link) < 1:
+            return {}
+        fail(xdp != "xdp" in link,
+             "XDP program not reporting in iplink (reported %s, expected %s)" %
+             ("xdp" in link, xdp))
+        return link[0]
+
+    def tc_add_ingress(self):
+        tc("qdisc add dev %s ingress" % (self['ifname']))
+
+    def tc_del_ingress(self):
+        tc("qdisc del dev %s ingress" % (self['ifname']))
+
+    def tc_flush_filters(self, bound=0, total=0):
+        self.tc_del_ingress()
+        self.tc_add_ingress()
+        self.wait_for_flush(bound=bound, total=total)
+
+    def tc_show_ingress(self, expected=None):
+        # No JSON support, oh well...
+        flags = ["skip_sw", "skip_hw", "in_hw"]
+        named = ["protocol", "pref", "chain", "handle", "id", "tag"]
+
+        args = "-s filter show dev %s ingress" % (self['ifname'])
+        _, out = tc(args, JSON=False)
+
+        filters = []
+        lines = out.split('\n')
+        for line in lines:
+            words = line.split()
+            if "handle" not in words:
+                continue
+            fltr = {}
+            for flag in flags:
+                fltr[flag] = flag in words
+            for name in named:
+                try:
+                    idx = words.index(name)
+                    fltr[name] = words[idx + 1]
+                except ValueError:
+                    pass
+            filters.append(fltr)
+
+        if expected is not None:
+            fail(len(filters) != expected,
+                 "%d ingress filters loaded, expected %d" %
+                 (len(filters), expected))
+        return filters
+
+    def cls_filter_op(self, op, qdisc="ingress", prio=None, handle=None,
+                      chain=None, cls="", params="",
+                      fail=True, include_stderr=False):
+        spec = ""
+        if prio is not None:
+            spec += " prio %d" % (prio)
+        if handle:
+            spec += " handle %s" % (handle)
+        if chain is not None:
+            spec += " chain %d" % (chain)
+
+        return tc("filter {op} dev {dev} {qdisc} {spec} {cls} {params}"\
+                  .format(op=op, dev=self['ifname'], qdisc=qdisc, spec=spec,
+                          cls=cls, params=params),
+                  fail=fail, include_stderr=include_stderr)
+
+    def cls_bpf_add_filter(self, bpf, op="add", prio=None, handle=None,
+                           chain=None, da=False, verbose=False,
+                           skip_sw=False, skip_hw=False,
+                           fail=True, include_stderr=False):
+        cls = "bpf " + bpf
+
+        params = ""
+        if da:
+            params += " da"
+        if verbose:
+            params += " verbose"
+        if skip_sw:
+            params += " skip_sw"
+        if skip_hw:
+            params += " skip_hw"
+
+        return self.cls_filter_op(op=op, prio=prio, handle=handle, cls=cls,
+                                  chain=chain, params=params,
+                                  fail=fail, include_stderr=include_stderr)
+
+    def set_ethtool_tc_offloads(self, enable, fail=True):
+        args = "hw-tc-offload %s" % ("on" if enable else "off")
+        return ethtool(self, "-K", args, fail=fail)
+
+################################################################################
+def clean_up():
+    global files, netns, devs
+
+    for dev in devs:
+        dev.remove()
+    for f in files:
+        cmd("rm -f %s" % (f))
+    for ns in netns:
+        cmd("ip netns delete %s" % (ns))
+    files = []
+    netns = []
+
+def pin_prog(file_name, idx=0):
+    progs = bpftool_prog_list(expected=(idx + 1))
+    prog = progs[idx]
+    bpftool("prog pin id %d %s" % (prog["id"], file_name))
+    files.append(file_name)
+
+    return file_name, bpf_pinned(file_name)
+
+def pin_map(file_name, idx=0, expected=1):
+    maps = bpftool_map_list_wait(expected=expected)
+    m = maps[idx]
+    bpftool("map pin id %d %s" % (m["id"], file_name))
+    files.append(file_name)
+
+    return file_name, bpf_pinned(file_name)
+
+def check_dev_info_removed(prog_file=None, map_file=None):
+    bpftool_prog_list(expected=0)
+    bpftool_prog_list(expected=1, exclude_orphaned=False)
+    ret, err = bpftool("prog show pin %s" % (prog_file), fail=False)
+    fail(ret != 0, "failed to show prog with removed device")
+
+    bpftool_map_list_wait(expected=0)
+    ret, err = bpftool("map show pin %s" % (map_file), fail=False)
+    fail(ret == 0, "Showing map with removed device did not fail")
+    fail(err["error"].find("No such device") == -1,
+         "Showing map with removed device expected ENODEV, error is %s" %
+         (err["error"]))
+
+def check_dev_info(other_ns, ns, prog_file=None, map_file=None, removed=False):
+    progs = bpftool_prog_list(expected=1, ns=ns)
+    prog = progs[0]
+
+    fail("dev" not in prog.keys(), "Device parameters not reported")
+    dev = prog["dev"]
+    fail("ifindex" not in dev.keys(), "Device parameters not reported")
+    fail("ns_dev" not in dev.keys(), "Device parameters not reported")
+    fail("ns_inode" not in dev.keys(), "Device parameters not reported")
+
+    if not other_ns:
+        fail("ifname" not in dev.keys(), "Ifname not reported")
+        fail(dev["ifname"] != sim["ifname"],
+             "Ifname incorrect %s vs %s" % (dev["ifname"], sim["ifname"]))
+    else:
+        fail("ifname" in dev.keys(), "Ifname is reported for other ns")
+
+    maps = bpftool_map_list_wait(expected=2, ns=ns)
+    for m in maps:
+        fail("dev" not in m.keys(), "Device parameters not reported")
+        fail(dev != m["dev"], "Map's device different than program's")
+
+def check_extack(output, reference, args):
+    if skip_extack:
+        return
+    lines = output.split("\n")
+    comp = len(lines) >= 2 and lines[1] == 'Error: ' + reference
+    fail(not comp, "Missing or incorrect netlink extack message")
+
+def check_extack_nsim(output, reference, args):
+    check_extack(output, "netdevsim: " + reference, args)
+
+def check_no_extack(res, needle):
+    haystack = (res[1] + res[2]).strip()
+    fail(haystack.count(needle) or haystack.count("Warning:"),
+         "Unexpected command output, leaky extack? ('%s', '%s')" % (needle, haystack))
+
+def check_verifier_log(output, reference):
+    lines = output.split("\n")
+    for l in reversed(lines):
+        if l == reference:
+            return
+    fail(True, "Missing or incorrect message from netdevsim in verifier log")
+
+def check_multi_basic(two_xdps):
+    fail(two_xdps["mode"] != 4, "Bad mode reported with multiple programs")
+    fail("prog" in two_xdps, "Base program reported in multi program mode")
+    fail(len(two_xdps["attached"]) != 2,
+         "Wrong attached program count with two programs")
+    fail(two_xdps["attached"][0]["prog"]["id"] ==
+         two_xdps["attached"][1]["prog"]["id"],
+         "Offloaded and other programs have the same id")
+
+def test_spurios_extack(sim, obj, skip_hw, needle):
+    res = sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=skip_hw,
+                                 include_stderr=True)
+    check_no_extack(res, needle)
+    res = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1,
+                                 skip_hw=skip_hw, include_stderr=True)
+    check_no_extack(res, needle)
+    res = sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf",
+                            include_stderr=True)
+    check_no_extack(res, needle)
+
+def test_multi_prog(simdev, sim, obj, modename, modeid):
+    start_test("Test multi-attachment XDP - %s + offload..." %
+               (modename or "default", ))
+    sim.set_xdp(obj, "offload")
+    xdp = sim.ip_link_show(xdp=True)["xdp"]
+    offloaded = sim.dfs_read("bpf_offloaded_id")
+    fail("prog" not in xdp, "Base program not reported in single program mode")
+    fail(len(xdp["attached"]) != 1,
+         "Wrong attached program count with one program")
+
+    sim.set_xdp(obj, modename)
+    two_xdps = sim.ip_link_show(xdp=True)["xdp"]
+
+    fail(xdp["attached"][0] not in two_xdps["attached"],
+         "Offload program not reported after other activated")
+    check_multi_basic(two_xdps)
+
+    offloaded2 = sim.dfs_read("bpf_offloaded_id")
+    fail(offloaded != offloaded2,
+         "Offload ID changed after loading other program")
+
+    start_test("Test multi-attachment XDP - replace...")
+    ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True)
+    fail(ret == 0, "Replaced one of programs without -force")
+    check_extack(err, "XDP program already attached.", args)
+
+    start_test("Test multi-attachment XDP - remove without mode...")
+    ret, _, err = sim.unset_xdp("", force=True,
+                                fail=False, include_stderr=True)
+    fail(ret == 0, "Removed program without a mode flag")
+    check_extack(err, "More than one program loaded, unset mode is ambiguous.", args)
+
+    sim.unset_xdp("offload")
+    xdp = sim.ip_link_show(xdp=True)["xdp"]
+    offloaded = sim.dfs_read("bpf_offloaded_id")
+
+    fail(xdp["mode"] != modeid, "Bad mode reported after multiple programs")
+    fail("prog" not in xdp,
+         "Base program not reported after multi program mode")
+    fail(xdp["attached"][0] not in two_xdps["attached"],
+         "Offload program not reported after other activated")
+    fail(len(xdp["attached"]) != 1,
+         "Wrong attached program count with remaining programs")
+    fail(offloaded != "0", "Offload ID reported with only other program left")
+
+    start_test("Test multi-attachment XDP - reattach...")
+    sim.set_xdp(obj, "offload")
+    two_xdps = sim.ip_link_show(xdp=True)["xdp"]
+
+    fail(xdp["attached"][0] not in two_xdps["attached"],
+         "Other program not reported after offload activated")
+    check_multi_basic(two_xdps)
+
+    start_test("Test multi-attachment XDP - device remove...")
+    simdev.remove()
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.set_ethtool_tc_offloads(True)
+    return [simdev, sim]
+
+# Parse command line
+parser = argparse.ArgumentParser()
+parser.add_argument("--log", help="output verbose log to given file")
+args = parser.parse_args()
+if args.log:
+    logfile = open(args.log, 'w+')
+    logfile.write("# -*-Org-*-")
+
+log("Prepare...", "", level=1)
+log_level_inc()
+
+# Check permissions
+skip(os.getuid() != 0, "test must be run as root")
+
+# Check tools
+ret, progs = bpftool("prog", fail=False)
+skip(ret != 0, "bpftool not installed")
+base_progs = progs
+_, base_maps = bpftool("map")
+base_map_names = [
+    'pid_iter.rodata', # created on each bpftool invocation
+    'libbpf_det_bind', # created on each bpftool invocation
+    'libbpf_global',
+]
+
+# Check netdevsim
+if not os.path.isdir("/sys/bus/netdevsim/"):
+    ret, out = cmd("modprobe netdevsim", fail=False)
+    skip(ret != 0, "netdevsim module could not be loaded")
+
+# Check debugfs
+_, out = cmd("mount")
+if out.find("/sys/kernel/debug type debugfs") == -1:
+    cmd("mount -t debugfs none /sys/kernel/debug")
+
+# Check samples are compiled
+samples = ["sample_ret0.bpf.o", "sample_map_ret0.bpf.o"]
+for s in samples:
+    ret, out = cmd("ls %s/%s" % (bpf_test_dir, s), fail=False)
+    skip(ret != 0, "sample %s/%s not found, please compile it" %
+         (bpf_test_dir, s))
+
+# Check if iproute2 is built with libmnl (needed by extack support)
+_, _, err = cmd("tc qdisc delete dev lo handle 0",
+                fail=False, include_stderr=True)
+if err.find("Error: Failed to find qdisc with specified handle.") == -1:
+    print("Warning: no extack message in iproute2 output, libmnl missing?")
+    log("Warning: no extack message in iproute2 output, libmnl missing?", "")
+    skip_extack = True
+
+# Check if net namespaces seem to work
+ns = mknetns()
+skip(ns is None, "Could not create a net namespace")
+cmd("ip netns delete %s" % (ns))
+netns = []
+
+try:
+    obj = bpf_obj("sample_ret0.bpf.o")
+    bytecode = bpf_bytecode("1,6 0 0 4294967295,")
+
+    start_test("Test destruction of generic XDP...")
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.set_xdp(obj, "generic")
+    simdev.remove()
+    bpftool_prog_list_wait(expected=0)
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.tc_add_ingress()
+
+    start_test("Test TC non-offloaded...")
+    ret, _ = sim.cls_bpf_add_filter(obj, skip_hw=True, fail=False)
+    fail(ret != 0, "Software TC filter did not load")
+
+    start_test("Test TC non-offloaded isn't getting bound...")
+    ret, _ = sim.cls_bpf_add_filter(obj, fail=False)
+    fail(ret != 0, "Software TC filter did not load")
+    simdev.dfs_get_bound_progs(expected=0)
+
+    sim.tc_flush_filters()
+
+    start_test("Test TC offloads are off by default...")
+    ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "TC filter loaded without enabling TC offloads")
+    check_extack(err, "TC offload is disabled on net device.", args)
+    sim.wait_for_flush()
+
+    sim.set_ethtool_tc_offloads(True)
+    sim.dfs["bpf_tc_non_bound_accept"] = "Y"
+
+    start_test("Test TC offload by default...")
+    ret, _ = sim.cls_bpf_add_filter(obj, fail=False)
+    fail(ret != 0, "Software TC filter did not load")
+    simdev.dfs_get_bound_progs(expected=0)
+    ingress = sim.tc_show_ingress(expected=1)
+    fltr = ingress[0]
+    fail(not fltr["in_hw"], "Filter not offloaded by default")
+
+    sim.tc_flush_filters()
+
+    start_test("Test TC cBPF bytcode tries offload by default...")
+    ret, _ = sim.cls_bpf_add_filter(bytecode, fail=False)
+    fail(ret != 0, "Software TC filter did not load")
+    simdev.dfs_get_bound_progs(expected=0)
+    ingress = sim.tc_show_ingress(expected=1)
+    fltr = ingress[0]
+    fail(not fltr["in_hw"], "Bytecode not offloaded by default")
+
+    sim.tc_flush_filters()
+    sim.dfs["bpf_tc_non_bound_accept"] = "N"
+
+    start_test("Test TC cBPF unbound bytecode doesn't offload...")
+    ret, _, err = sim.cls_bpf_add_filter(bytecode, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "TC bytecode loaded for offload")
+    check_extack_nsim(err, "netdevsim configured to reject unbound programs.",
+                      args)
+    sim.wait_for_flush()
+
+    start_test("Test non-0 chain offload...")
+    ret, _, err = sim.cls_bpf_add_filter(obj, chain=1, prio=1, handle=1,
+                                         skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "Offloaded a filter to chain other than 0")
+    check_extack(err, "Driver supports only offload of chain 0.", args)
+    sim.tc_flush_filters()
+
+    start_test("Test TC replace...")
+    sim.cls_bpf_add_filter(obj, prio=1, handle=1)
+    sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1)
+    sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf")
+
+    sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_sw=True)
+    sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_sw=True)
+    sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf")
+
+    sim.cls_bpf_add_filter(obj, prio=1, handle=1, skip_hw=True)
+    sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1, skip_hw=True)
+    sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf")
+
+    start_test("Test TC replace bad flags...")
+    for i in range(3):
+        for j in range(3):
+            ret, _ = sim.cls_bpf_add_filter(obj, op="replace", prio=1, handle=1,
+                                            skip_sw=(j == 1), skip_hw=(j == 2),
+                                            fail=False)
+            fail(bool(ret) != bool(j),
+                 "Software TC incorrect load in replace test, iteration %d" %
+                 (j))
+        sim.cls_filter_op(op="delete", prio=1, handle=1, cls="bpf")
+
+    start_test("Test spurious extack from the driver...")
+    test_spurios_extack(sim, obj, False, "netdevsim")
+    test_spurios_extack(sim, obj, True, "netdevsim")
+
+    sim.set_ethtool_tc_offloads(False)
+
+    test_spurios_extack(sim, obj, False, "TC offload is disabled")
+    test_spurios_extack(sim, obj, True, "TC offload is disabled")
+
+    sim.set_ethtool_tc_offloads(True)
+
+    sim.tc_flush_filters()
+
+    start_test("Test TC offloads failure...")
+    sim.dfs["dev/bpf_bind_verifier_accept"] = 0
+    ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "TC filter did not reject with TC offloads enabled")
+    check_verifier_log(err, "[netdevsim] Hello from netdevsim!")
+    sim.dfs["dev/bpf_bind_verifier_accept"] = 1
+
+    start_test("Test TC offloads work...")
+    ret, _, err = sim.cls_bpf_add_filter(obj, verbose=True, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret != 0, "TC filter did not load with TC offloads enabled")
+
+    start_test("Test TC offload basics...")
+    dfs = simdev.dfs_get_bound_progs(expected=1)
+    progs = bpftool_prog_list(expected=1)
+    ingress = sim.tc_show_ingress(expected=1)
+
+    dprog = dfs[0]
+    prog = progs[0]
+    fltr = ingress[0]
+    fail(fltr["skip_hw"], "TC does reports 'skip_hw' on offloaded filter")
+    fail(not fltr["in_hw"], "TC does not report 'in_hw' for offloaded filter")
+    fail(not fltr["skip_sw"], "TC does not report 'skip_sw' back")
+
+    start_test("Test TC offload is device-bound...")
+    fail(str(prog["id"]) != fltr["id"], "Program IDs don't match")
+    fail(prog["tag"] != fltr["tag"], "Program tags don't match")
+    fail(fltr["id"] != dprog["id"], "Program IDs don't match")
+    fail(dprog["state"] != "xlated", "Offloaded program state not translated")
+    fail(dprog["loaded"] != "Y", "Offloaded program is not loaded")
+
+    start_test("Test disabling TC offloads is rejected while filters installed...")
+    ret, _ = sim.set_ethtool_tc_offloads(False, fail=False)
+    fail(ret == 0, "Driver should refuse to disable TC offloads with filters installed...")
+    sim.set_ethtool_tc_offloads(True)
+
+    start_test("Test qdisc removal frees things...")
+    sim.tc_flush_filters()
+    sim.tc_show_ingress(expected=0)
+
+    start_test("Test disabling TC offloads is OK without filters...")
+    ret, _ = sim.set_ethtool_tc_offloads(False, fail=False)
+    fail(ret != 0,
+         "Driver refused to disable TC offloads without filters installed...")
+
+    sim.set_ethtool_tc_offloads(True)
+
+    start_test("Test destroying device gets rid of TC filters...")
+    sim.cls_bpf_add_filter(obj, skip_sw=True)
+    simdev.remove()
+    bpftool_prog_list_wait(expected=0)
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.set_ethtool_tc_offloads(True)
+
+    start_test("Test destroying device gets rid of XDP...")
+    sim.set_xdp(obj, "offload")
+    simdev.remove()
+    bpftool_prog_list_wait(expected=0)
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.set_ethtool_tc_offloads(True)
+
+    start_test("Test XDP prog reporting...")
+    sim.set_xdp(obj, "drv")
+    ipl = sim.ip_link_show(xdp=True)
+    progs = bpftool_prog_list(expected=1)
+    fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"],
+         "Loaded program has wrong ID")
+
+    start_test("Test XDP prog replace without force...")
+    ret, _ = sim.set_xdp(obj, "drv", fail=False)
+    fail(ret == 0, "Replaced XDP program without -force")
+    sim.wait_for_flush(total=1)
+
+    start_test("Test XDP prog replace with force...")
+    ret, _ = sim.set_xdp(obj, "drv", force=True, fail=False)
+    fail(ret != 0, "Could not replace XDP program with -force")
+    bpftool_prog_list_wait(expected=1)
+    ipl = sim.ip_link_show(xdp=True)
+    progs = bpftool_prog_list(expected=1)
+    fail(ipl["xdp"]["prog"]["id"] != progs[0]["id"],
+         "Loaded program has wrong ID")
+    fail("dev" in progs[0].keys(),
+         "Device parameters reported for non-offloaded program")
+
+    start_test("Test XDP prog replace with bad flags...")
+    ret, _, err = sim.set_xdp(obj, "generic", force=True,
+                              fail=False, include_stderr=True)
+    fail(ret == 0, "Replaced XDP program with a program in different mode")
+    check_extack(err,
+                 "Native and generic XDP can't be active at the same time.",
+                 args)
+
+    start_test("Test MTU restrictions...")
+    ret, _ = sim.set_mtu(9000, fail=False)
+    fail(ret == 0,
+         "Driver should refuse to increase MTU to 9000 with XDP loaded...")
+    sim.unset_xdp("drv")
+    bpftool_prog_list_wait(expected=0)
+    sim.set_mtu(9000)
+    ret, _, err = sim.set_xdp(obj, "drv", fail=False, include_stderr=True)
+    fail(ret == 0, "Driver should refuse to load program with MTU of 9000...")
+    check_extack_nsim(err, "MTU too large w/ XDP enabled.", args)
+    sim.set_mtu(1500)
+
+    sim.wait_for_flush()
+    start_test("Test non-offload XDP attaching to HW...")
+    bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/nooffload")
+    nooffload = bpf_pinned("/sys/fs/bpf/nooffload")
+    ret, _, err = sim.set_xdp(nooffload, "offload",
+                              fail=False, include_stderr=True)
+    fail(ret == 0, "attached non-offloaded XDP program to HW")
+    check_extack_nsim(err, "xdpoffload of non-bound program.", args)
+    rm("/sys/fs/bpf/nooffload")
+
+    start_test("Test offload XDP attaching to drv...")
+    bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload",
+                      dev=sim['ifname'])
+    offload = bpf_pinned("/sys/fs/bpf/offload")
+    ret, _, err = sim.set_xdp(offload, "drv", fail=False, include_stderr=True)
+    fail(ret == 0, "attached offloaded XDP program to drv")
+    check_extack(err, "Using offloaded program without HW_MODE flag is not supported.", args)
+    rm("/sys/fs/bpf/offload")
+    sim.wait_for_flush()
+
+    bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/devbound",
+                      dev_bind=sim['ifname'])
+    devbound = bpf_pinned("/sys/fs/bpf/devbound")
+    start_test("Test dev-bound program in generic mode...")
+    ret, _, err = sim.set_xdp(devbound, "generic", fail=False, include_stderr=True)
+    fail(ret == 0, "devbound program in generic mode allowed")
+    check_extack(err, "Can't attach device-bound programs in generic mode.", args)
+    rm("/sys/fs/bpf/devbound")
+    sim.wait_for_flush()
+
+    start_test("Test XDP load failure...")
+    sim.dfs["dev/bpf_bind_verifier_accept"] = 0
+    ret, _, err = bpftool_prog_load("sample_ret0.bpf.o", "/sys/fs/bpf/offload",
+                                 dev=sim['ifname'], fail=False, include_stderr=True)
+    fail(ret == 0, "verifier should fail on load")
+    check_verifier_log(err, "[netdevsim] Hello from netdevsim!")
+    sim.dfs["dev/bpf_bind_verifier_accept"] = 1
+    sim.wait_for_flush()
+
+    start_test("Test XDP offload...")
+    _, _, err = sim.set_xdp(obj, "offload", verbose=True, include_stderr=True)
+    ipl = sim.ip_link_show(xdp=True)
+    link_xdp = ipl["xdp"]["prog"]
+    progs = bpftool_prog_list(expected=1)
+    prog = progs[0]
+    fail(link_xdp["id"] != prog["id"], "Loaded program has wrong ID")
+
+    start_test("Test XDP offload is device bound...")
+    dfs = simdev.dfs_get_bound_progs(expected=1)
+    dprog = dfs[0]
+
+    fail(prog["id"] != link_xdp["id"], "Program IDs don't match")
+    fail(prog["tag"] != link_xdp["tag"], "Program tags don't match")
+    fail(str(link_xdp["id"]) != dprog["id"], "Program IDs don't match")
+    fail(dprog["state"] != "xlated", "Offloaded program state not translated")
+    fail(dprog["loaded"] != "Y", "Offloaded program is not loaded")
+
+    start_test("Test removing XDP program many times...")
+    sim.unset_xdp("offload")
+    sim.unset_xdp("offload")
+    sim.unset_xdp("drv")
+    sim.unset_xdp("drv")
+    sim.unset_xdp("")
+    sim.unset_xdp("")
+    bpftool_prog_list_wait(expected=0)
+
+    start_test("Test attempt to use a program for a wrong device...")
+    simdev2 = BpfNetdevSimDev()
+    sim2, = simdev2.nsims
+    sim2.set_xdp(obj, "offload")
+    pin_file, pinned = pin_prog("/sys/fs/bpf/tmp")
+
+    ret, _, err = sim.set_xdp(pinned, "offload",
+                              fail=False, include_stderr=True)
+    fail(ret == 0, "Pinned program loaded for a different device accepted")
+    check_extack(err, "Program bound to different device.", args)
+    simdev2.remove()
+    ret, _, err = sim.set_xdp(pinned, "offload",
+                              fail=False, include_stderr=True)
+    fail(ret == 0, "Pinned program loaded for a removed device accepted")
+    check_extack(err, "Program bound to different device.", args)
+    rm(pin_file)
+    bpftool_prog_list_wait(expected=0)
+
+    simdev, sim = test_multi_prog(simdev, sim, obj, "", 1)
+    simdev, sim = test_multi_prog(simdev, sim, obj, "drv", 1)
+    simdev, sim = test_multi_prog(simdev, sim, obj, "generic", 2)
+
+    start_test("Test mixing of TC and XDP...")
+    sim.tc_add_ingress()
+    sim.set_xdp(obj, "offload")
+    ret, _, err = sim.cls_bpf_add_filter(obj, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "Loading TC when XDP active should fail")
+    check_extack_nsim(err, "driver and netdev offload states mismatch.", args)
+    sim.unset_xdp("offload")
+    sim.wait_for_flush()
+
+    sim.cls_bpf_add_filter(obj, skip_sw=True)
+    ret, _, err = sim.set_xdp(obj, "offload", fail=False, include_stderr=True)
+    fail(ret == 0, "Loading XDP when TC active should fail")
+    check_extack_nsim(err, "TC program is already loaded.", args)
+
+    start_test("Test binding TC from pinned...")
+    pin_file, pinned = pin_prog("/sys/fs/bpf/tmp")
+    sim.tc_flush_filters(bound=1, total=1)
+    sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True)
+    sim.tc_flush_filters(bound=1, total=1)
+
+    start_test("Test binding XDP from pinned...")
+    sim.set_xdp(obj, "offload")
+    pin_file, pinned = pin_prog("/sys/fs/bpf/tmp2", idx=1)
+
+    sim.set_xdp(pinned, "offload", force=True)
+    sim.unset_xdp("offload")
+    sim.set_xdp(pinned, "offload", force=True)
+    sim.unset_xdp("offload")
+
+    start_test("Test offload of wrong type fails...")
+    ret, _ = sim.cls_bpf_add_filter(pinned, da=True, skip_sw=True, fail=False)
+    fail(ret == 0, "Managed to attach XDP program to TC")
+
+    start_test("Test asking for TC offload of two filters...")
+    sim.cls_bpf_add_filter(obj, da=True, skip_sw=True)
+    ret, _, err = sim.cls_bpf_add_filter(obj, da=True, skip_sw=True,
+                                         fail=False, include_stderr=True)
+    fail(ret == 0, "Managed to offload two TC filters at the same time")
+    check_extack_nsim(err, "driver and netdev offload states mismatch.", args)
+
+    sim.tc_flush_filters(bound=2, total=2)
+
+    start_test("Test if netdev removal waits for translation...")
+    delay_msec = 500
+    sim.dfs["dev/bpf_bind_verifier_delay"] = delay_msec
+    start = time.time()
+    cmd_line = "tc filter add dev %s ingress bpf %s da skip_sw" % \
+               (sim['ifname'], obj)
+    tc_proc = cmd(cmd_line, background=True, fail=False)
+    # Wait for the verifier to start
+    while simdev.dfs_num_bound_progs() <= 2:
+        pass
+    simdev.remove()
+    end = time.time()
+    ret, _ = cmd_result(tc_proc, fail=False)
+    time_diff = end - start
+    log("Time", "start:\t%s\nend:\t%s\ndiff:\t%s" % (start, end, time_diff))
+
+    fail(ret == 0, "Managed to load TC filter on a unregistering device")
+    delay_sec = delay_msec * 0.001
+    fail(time_diff < delay_sec, "Removal process took %s, expected %s" %
+         (time_diff, delay_sec))
+
+    # Remove all pinned files and reinstantiate the netdev
+    clean_up()
+    bpftool_prog_list_wait(expected=0)
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    map_obj = bpf_obj("sample_map_ret0.bpf.o")
+    start_test("Test loading program with maps...")
+    sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON
+
+    start_test("Test bpftool bound info reporting (own ns)...")
+    check_dev_info(False, "")
+
+    start_test("Test bpftool bound info reporting (other ns)...")
+    ns = mknetns()
+    sim.set_ns(ns)
+    check_dev_info(True, "")
+
+    start_test("Test bpftool bound info reporting (remote ns)...")
+    check_dev_info(False, ns)
+
+    start_test("Test bpftool bound info reporting (back to own ns)...")
+    sim.set_ns("")
+    check_dev_info(False, "")
+
+    prog_file, _ = pin_prog("/sys/fs/bpf/tmp_prog")
+    map_file, _ = pin_map("/sys/fs/bpf/tmp_map", idx=1, expected=2)
+    simdev.remove()
+
+    start_test("Test bpftool bound info reporting (removed dev)...")
+    check_dev_info_removed(prog_file=prog_file, map_file=map_file)
+
+    # Remove all pinned files and reinstantiate the netdev
+    clean_up()
+    bpftool_prog_list_wait(expected=0)
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+
+    start_test("Test map update (no flags)...")
+    sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON
+    maps = bpftool_map_list_wait(expected=2)
+    array = maps[0] if maps[0]["type"] == "array" else maps[1]
+    htab = maps[0] if maps[0]["type"] == "hash" else maps[1]
+    for m in maps:
+        for i in range(2):
+            bpftool("map update id %d key %s value %s" %
+                    (m["id"], int2str("I", i), int2str("Q", i * 3)))
+
+    for m in maps:
+        ret, _ = bpftool("map update id %d key %s value %s" %
+                         (m["id"], int2str("I", 3), int2str("Q", 3 * 3)),
+                         fail=False)
+        fail(ret == 0, "added too many entries")
+
+    start_test("Test map update (exists)...")
+    for m in maps:
+        for i in range(2):
+            bpftool("map update id %d key %s value %s exist" %
+                    (m["id"], int2str("I", i), int2str("Q", i * 3)))
+
+    for m in maps:
+        ret, err = bpftool("map update id %d key %s value %s exist" %
+                           (m["id"], int2str("I", 3), int2str("Q", 3 * 3)),
+                           fail=False)
+        fail(ret == 0, "updated non-existing key")
+        fail(err["error"].find("No such file or directory") == -1,
+             "expected ENOENT, error is '%s'" % (err["error"]))
+
+    start_test("Test map update (noexist)...")
+    for m in maps:
+        for i in range(2):
+            ret, err = bpftool("map update id %d key %s value %s noexist" %
+                               (m["id"], int2str("I", i), int2str("Q", i * 3)),
+                               fail=False)
+        fail(ret == 0, "updated existing key")
+        fail(err["error"].find("File exists") == -1,
+             "expected EEXIST, error is '%s'" % (err["error"]))
+
+    start_test("Test map dump...")
+    for m in maps:
+        _, entries = bpftool("map dump id %d" % (m["id"]))
+        for i in range(2):
+            key = str2int(entries[i]["key"])
+            fail(key != i, "expected key %d, got %d" % (key, i))
+            val = str2int(entries[i]["value"])
+            fail(val != i * 3, "expected value %d, got %d" % (val, i * 3))
+
+    start_test("Test map getnext...")
+    for m in maps:
+        _, entry = bpftool("map getnext id %d" % (m["id"]))
+        key = str2int(entry["next_key"])
+        fail(key != 0, "next key %d, expected %d" % (key, 0))
+        _, entry = bpftool("map getnext id %d key %s" %
+                           (m["id"], int2str("I", 0)))
+        key = str2int(entry["next_key"])
+        fail(key != 1, "next key %d, expected %d" % (key, 1))
+        ret, err = bpftool("map getnext id %d key %s" %
+                           (m["id"], int2str("I", 1)), fail=False)
+        fail(ret == 0, "got next key past the end of map")
+        fail(err["error"].find("No such file or directory") == -1,
+             "expected ENOENT, error is '%s'" % (err["error"]))
+
+    start_test("Test map delete (htab)...")
+    for i in range(2):
+        bpftool("map delete id %d key %s" % (htab["id"], int2str("I", i)))
+
+    start_test("Test map delete (array)...")
+    for i in range(2):
+        ret, err = bpftool("map delete id %d key %s" %
+                           (htab["id"], int2str("I", i)), fail=False)
+        fail(ret == 0, "removed entry from an array")
+        fail(err["error"].find("No such file or directory") == -1,
+             "expected ENOENT, error is '%s'" % (err["error"]))
+
+    start_test("Test map remove...")
+    sim.unset_xdp("offload")
+    bpftool_map_list_wait(expected=0)
+    simdev.remove()
+
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.set_xdp(map_obj, "offload", JSON=False) # map fixup msg breaks JSON
+    simdev.remove()
+    bpftool_map_list_wait(expected=0)
+
+    start_test("Test map creation fail path...")
+    simdev = BpfNetdevSimDev()
+    sim, = simdev.nsims
+    sim.dfs["bpf_map_accept"] = "N"
+    ret, _ = sim.set_xdp(map_obj, "offload", JSON=False, fail=False)
+    fail(ret == 0,
+         "netdevsim didn't refuse to create a map with offload disabled")
+
+    simdev.remove()
+
+    start_test("Test multi-dev ASIC program reuse...")
+    simdevA = BpfNetdevSimDev()
+    simA, = simdevA.nsims
+    simdevB = BpfNetdevSimDev(3)
+    simB1, simB2, simB3 = simdevB.nsims
+    sims = (simA, simB1, simB2, simB3)
+    simB = (simB1, simB2, simB3)
+
+    bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA",
+                      dev=simA['ifname'])
+    progA = bpf_pinned("/sys/fs/bpf/nsimA")
+    bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB",
+                      dev=simB1['ifname'])
+    progB = bpf_pinned("/sys/fs/bpf/nsimB")
+
+    simA.set_xdp(progA, "offload", JSON=False)
+    for d in simdevB.nsims:
+        d.set_xdp(progB, "offload", JSON=False)
+
+    start_test("Test multi-dev ASIC cross-dev replace...")
+    ret, _ = simA.set_xdp(progB, "offload", force=True, JSON=False, fail=False)
+    fail(ret == 0, "cross-ASIC program allowed")
+    for d in simdevB.nsims:
+        ret, _ = d.set_xdp(progA, "offload", force=True, JSON=False, fail=False)
+        fail(ret == 0, "cross-ASIC program allowed")
+
+    start_test("Test multi-dev ASIC cross-dev install...")
+    for d in sims:
+        d.unset_xdp("offload")
+
+    ret, _, err = simA.set_xdp(progB, "offload", force=True, JSON=False,
+                               fail=False, include_stderr=True)
+    fail(ret == 0, "cross-ASIC program allowed")
+    check_extack(err, "Program bound to different device.", args)
+    for d in simdevB.nsims:
+        ret, _, err = d.set_xdp(progA, "offload", force=True, JSON=False,
+                                fail=False, include_stderr=True)
+        fail(ret == 0, "cross-ASIC program allowed")
+        check_extack(err, "Program bound to different device.", args)
+
+    start_test("Test multi-dev ASIC cross-dev map reuse...")
+
+    mapA = bpftool("prog show %s" % (progA))[1]["map_ids"][0]
+    mapB = bpftool("prog show %s" % (progB))[1]["map_ids"][0]
+
+    ret, _ = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_",
+                               dev=simB3['ifname'],
+                               maps=["idx 0 id %d" % (mapB)],
+                               fail=False)
+    fail(ret != 0, "couldn't reuse a map on the same ASIC")
+    rm("/sys/fs/bpf/nsimB_")
+
+    ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimA_",
+                                    dev=simA['ifname'],
+                                    maps=["idx 0 id %d" % (mapB)],
+                                    fail=False, include_stderr=True)
+    fail(ret == 0, "could reuse a map on a different ASIC")
+    fail(err.count("offload device mismatch between prog and map") == 0,
+         "error message missing for cross-ASIC map")
+
+    ret, _, err = bpftool_prog_load("sample_map_ret0.bpf.o", "/sys/fs/bpf/nsimB_",
+                                    dev=simB1['ifname'],
+                                    maps=["idx 0 id %d" % (mapA)],
+                                    fail=False, include_stderr=True)
+    fail(ret == 0, "could reuse a map on a different ASIC")
+    fail(err.count("offload device mismatch between prog and map") == 0,
+         "error message missing for cross-ASIC map")
+
+    start_test("Test multi-dev ASIC cross-dev destruction...")
+    bpftool_prog_list_wait(expected=2)
+
+    simdevA.remove()
+    bpftool_prog_list_wait(expected=1)
+
+    ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"]
+    fail(ifnameB != simB1['ifname'], "program not bound to original device")
+    simB1.remove()
+    bpftool_prog_list_wait(expected=1)
+
+    start_test("Test multi-dev ASIC cross-dev destruction - move...")
+    ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"]
+    fail(ifnameB not in (simB2['ifname'], simB3['ifname']),
+         "program not bound to remaining devices")
+
+    simB2.remove()
+    ifnameB = bpftool("prog show %s" % (progB))[1]["dev"]["ifname"]
+    fail(ifnameB != simB3['ifname'], "program not bound to remaining device")
+
+    simB3.remove()
+    simdevB.remove()
+    bpftool_prog_list_wait(expected=0)
+
+    start_test("Test multi-dev ASIC cross-dev destruction - orphaned...")
+    ret, out = bpftool("prog show %s" % (progB), fail=False)
+    fail(ret != 0, "couldn't get information about orphaned program")
+
+    print("%s: OK" % (os.path.basename(__file__)))
+
+finally:
+    log("Clean up...", "", level=1)
+    log_level_inc()
+    clean_up()
diff --git a/tools/testing/selftests/net/broadcast_ether_dst.sh b/tools/testing/selftests/net/broadcast_ether_dst.sh
new file mode 100755
index 000000000000..334a7eca8a80
--- /dev/null
+++ b/tools/testing/selftests/net/broadcast_ether_dst.sh
@@ -0,0 +1,83 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Author: Brett A C Sheffield <bacs@librecast.net>
+# Author: Oscar Maes <oscmaes92@gmail.com>
+#
+# Ensure destination ethernet field is correctly set for
+# broadcast packets
+
+source lib.sh
+
+CLIENT_IP4="192.168.0.1"
+GW_IP4="192.168.0.2"
+
+setup() {
+	setup_ns CLIENT_NS SERVER_NS
+
+	ip -net "${SERVER_NS}" link add link1 type veth \
+		peer name link0 netns "${CLIENT_NS}"
+
+	ip -net "${CLIENT_NS}" link set link0 up
+	ip -net "${CLIENT_NS}" addr add "${CLIENT_IP4}"/24 dev link0
+
+	ip -net "${SERVER_NS}" link set link1 up
+
+	ip -net "${CLIENT_NS}" route add default via "${GW_IP4}"
+	ip netns exec "${CLIENT_NS}" arp -s "${GW_IP4}" 00:11:22:33:44:55
+}
+
+cleanup() {
+	rm -f "${CAPFILE}" "${OUTPUT}"
+	ip -net "${SERVER_NS}" link del link1
+	cleanup_ns "${CLIENT_NS}" "${SERVER_NS}"
+}
+
+test_broadcast_ether_dst() {
+	local rc=0
+	CAPFILE=$(mktemp -u cap.XXXXXXXXXX)
+	OUTPUT=$(mktemp -u out.XXXXXXXXXX)
+
+	echo "Testing ethernet broadcast destination"
+
+	# start tcpdump listening for icmp
+	# tcpdump will exit after receiving a single packet
+	# timeout will kill tcpdump if it is still running after 2s
+	timeout 2s ip netns exec "${CLIENT_NS}" \
+		tcpdump -i link0 -c 1 -w "${CAPFILE}" icmp &> "${OUTPUT}" &
+	pid=$!
+	slowwait 1 grep -qs "listening" "${OUTPUT}"
+
+	# send broadcast ping
+	ip netns exec "${CLIENT_NS}" \
+		ping -W0.01 -c1 -b 255.255.255.255 &> /dev/null
+
+	# wait for tcpdump for exit after receiving packet
+	wait "${pid}"
+
+	# compare ethernet destination field to ff:ff:ff:ff:ff:ff
+	ether_dst=$(tcpdump -r "${CAPFILE}" -tnne 2>/dev/null | \
+			awk '{sub(/,/,"",$3); print $3}')
+	if [[ "${ether_dst}" == "ff:ff:ff:ff:ff:ff" ]]; then
+		echo "[ OK ]"
+		rc="${ksft_pass}"
+	else
+		echo "[FAIL] expected dst ether addr to be ff:ff:ff:ff:ff:ff," \
+			"got ${ether_dst}"
+		rc="${ksft_fail}"
+	fi
+
+	return "${rc}"
+}
+
+if [ ! -x "$(command -v tcpdump)" ]; then
+	echo "SKIP: Could not run test without tcpdump tool"
+	exit "${ksft_skip}"
+fi
+
+trap cleanup EXIT
+
+setup
+test_broadcast_ether_dst
+
+exit $?
diff --git a/tools/testing/selftests/net/broadcast_pmtu.sh b/tools/testing/selftests/net/broadcast_pmtu.sh
new file mode 100755
index 000000000000..726eb5d25839
--- /dev/null
+++ b/tools/testing/selftests/net/broadcast_pmtu.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Ensures broadcast route MTU is respected
+
+CLIENT_NS=$(mktemp -u client-XXXXXXXX)
+CLIENT_IP4="192.168.0.1/24"
+CLIENT_BROADCAST_ADDRESS="192.168.0.255"
+
+SERVER_NS=$(mktemp -u server-XXXXXXXX)
+SERVER_IP4="192.168.0.2/24"
+
+setup() {
+	ip netns add "${CLIENT_NS}"
+	ip netns add "${SERVER_NS}"
+
+	ip -net "${SERVER_NS}" link add link1 type veth peer name link0 netns "${CLIENT_NS}"
+
+	ip -net "${CLIENT_NS}" link set link0 up
+	ip -net "${CLIENT_NS}" link set link0 mtu 9000
+	ip -net "${CLIENT_NS}" addr add "${CLIENT_IP4}" dev link0
+
+	ip -net "${SERVER_NS}" link set link1 up
+	ip -net "${SERVER_NS}" link set link1 mtu 1500
+	ip -net "${SERVER_NS}" addr add "${SERVER_IP4}" dev link1
+
+	read -r -a CLIENT_BROADCAST_ENTRY <<< "$(ip -net "${CLIENT_NS}" route show table local type broadcast)"
+	ip -net "${CLIENT_NS}" route del "${CLIENT_BROADCAST_ENTRY[@]}"
+	ip -net "${CLIENT_NS}" route add "${CLIENT_BROADCAST_ENTRY[@]}" mtu 1500
+
+	ip net exec "${SERVER_NS}" sysctl -wq net.ipv4.icmp_echo_ignore_broadcasts=0
+}
+
+cleanup() {
+	ip -net "${SERVER_NS}" link del link1
+	ip netns del "${CLIENT_NS}"
+	ip netns del "${SERVER_NS}"
+}
+
+trap cleanup EXIT
+
+setup &&
+	echo "Testing for broadcast route MTU" &&
+	ip net exec "${CLIENT_NS}" ping -f -M want -q -c 1 -s 8000 -w 1 -b "${CLIENT_BROADCAST_ADDRESS}" > /dev/null 2>&1
+
+exit $?
+
diff --git a/tools/testing/selftests/net/busy_poll_test.sh b/tools/testing/selftests/net/busy_poll_test.sh
new file mode 100755
index 000000000000..5ec1c85c1623
--- /dev/null
+++ b/tools/testing/selftests/net/busy_poll_test.sh
@@ -0,0 +1,187 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+source lib.sh
+
+NSIM_SV_ID=$((256 + RANDOM % 256))
+NSIM_SV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_SV_ID
+NSIM_CL_ID=$((512 + RANDOM % 256))
+NSIM_CL_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_CL_ID
+
+NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
+NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
+NSIM_DEV_SYS_LINK=/sys/bus/netdevsim/link_device
+NSIM_DEV_SYS_UNLINK=/sys/bus/netdevsim/unlink_device
+
+SERVER_IP=192.168.1.1
+CLIENT_IP=192.168.1.2
+SERVER_PORT=48675
+
+# busy poll config
+MAX_EVENTS=8
+BUSY_POLL_USECS=0
+BUSY_POLL_BUDGET=16
+PREFER_BUSY_POLL=1
+
+# IRQ deferral config
+NAPI_DEFER_HARD_IRQS=100
+GRO_FLUSH_TIMEOUT=50000
+SUSPEND_TIMEOUT=20000000
+
+NAPI_THREADED_MODE_BUSY_POLL=2
+
+setup_ns()
+{
+	set -e
+	ip netns add nssv
+	ip netns add nscl
+
+	NSIM_SV_NAME=$(find $NSIM_SV_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_SV_SYS/net -exec basename {} \;)
+	NSIM_CL_NAME=$(find $NSIM_CL_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_CL_SYS/net -exec basename {} \;)
+
+	# ensure the server has 1 queue
+	ethtool -L $NSIM_SV_NAME combined 1 2>/dev/null
+
+	ip link set $NSIM_SV_NAME netns nssv
+	ip link set $NSIM_CL_NAME netns nscl
+
+	ip netns exec nssv ip addr add "${SERVER_IP}/24" dev $NSIM_SV_NAME
+	ip netns exec nscl ip addr add "${CLIENT_IP}/24" dev $NSIM_CL_NAME
+
+	ip netns exec nssv ip link set dev $NSIM_SV_NAME up
+	ip netns exec nscl ip link set dev $NSIM_CL_NAME up
+
+	set +e
+}
+
+cleanup_ns()
+{
+	ip netns del nscl
+	ip netns del nssv
+}
+
+test_busypoll()
+{
+	suspend_value=${1:-0}
+	napi_threaded_value=${2:-0}
+	prefer_busy_poll_value=${3:-$PREFER_BUSY_POLL}
+
+	tmp_file=$(mktemp)
+	out_file=$(mktemp)
+
+	# fill a test file with random data
+	dd if=/dev/urandom of=${tmp_file} bs=1M count=1 2> /dev/null
+
+	timeout -k 1s 30s ip netns exec nssv ./busy_poller         \
+					     -p${SERVER_PORT}      \
+					     -b${SERVER_IP}        \
+					     -m${MAX_EVENTS}       \
+					     -u${BUSY_POLL_USECS}  \
+					     -P${prefer_busy_poll_value} \
+					     -g${BUSY_POLL_BUDGET} \
+					     -i${NSIM_SV_IFIDX}    \
+					     -s${suspend_value}    \
+					     -t${napi_threaded_value} \
+					     -o${out_file}&
+
+	wait_local_port_listen nssv ${SERVER_PORT} tcp
+
+	ip netns exec nscl socat -u $tmp_file TCP:${SERVER_IP}:${SERVER_PORT}
+
+	wait
+
+	tmp_file_md5sum=$(md5sum $tmp_file | cut -f1 -d' ')
+	out_file_md5sum=$(md5sum $out_file | cut -f1 -d' ')
+
+	if [ "$tmp_file_md5sum" = "$out_file_md5sum" ]; then
+		res=0
+	else
+		echo "md5sum mismatch"
+		echo "input file md5sum: ${tmp_file_md5sum}";
+		echo "output file md5sum: ${out_file_md5sum}";
+		res=1
+	fi
+
+	rm $out_file $tmp_file
+
+	return $res
+}
+
+test_busypoll_with_suspend()
+{
+	test_busypoll ${SUSPEND_TIMEOUT}
+
+	return $?
+}
+
+test_busypoll_with_napi_threaded()
+{
+	# Only enable napi threaded poll. Set suspend timeout and prefer busy
+	# poll to 0.
+	test_busypoll 0 ${NAPI_THREADED_MODE_BUSY_POLL} 0
+
+	return $?
+}
+
+###
+### Code start
+###
+
+modprobe netdevsim
+
+# linking
+
+echo $NSIM_SV_ID > $NSIM_DEV_SYS_NEW
+echo $NSIM_CL_ID > $NSIM_DEV_SYS_NEW
+udevadm settle
+
+setup_ns
+
+NSIM_SV_FD=$((256 + RANDOM % 256))
+exec {NSIM_SV_FD}</var/run/netns/nssv
+NSIM_SV_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_SV_NAME/ifindex)
+
+NSIM_CL_FD=$((256 + RANDOM % 256))
+exec {NSIM_CL_FD}</var/run/netns/nscl
+NSIM_CL_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_CL_NAME/ifindex)
+
+echo "$NSIM_SV_FD:$NSIM_SV_IFIDX $NSIM_CL_FD:$NSIM_CL_IFIDX" > \
+     $NSIM_DEV_SYS_LINK
+
+if [ $? -ne 0 ]; then
+	echo "linking netdevsim1 with netdevsim2 should succeed"
+	cleanup_ns
+	exit 1
+fi
+
+test_busypoll
+if [ $? -ne 0 ]; then
+	echo "test_busypoll failed"
+	cleanup_ns
+	exit 1
+fi
+
+test_busypoll_with_suspend
+if [ $? -ne 0 ]; then
+	echo "test_busypoll_with_suspend failed"
+	cleanup_ns
+	exit 1
+fi
+
+test_busypoll_with_napi_threaded
+if [ $? -ne 0 ]; then
+	echo "test_busypoll_with_napi_threaded failed"
+	cleanup_ns
+	exit 1
+fi
+
+echo "$NSIM_SV_FD:$NSIM_SV_IFIDX" > $NSIM_DEV_SYS_UNLINK
+
+echo $NSIM_CL_ID > $NSIM_DEV_SYS_DEL
+
+cleanup_ns
+
+modprobe -r netdevsim
+
+exit 0
diff --git a/tools/testing/selftests/net/busy_poller.c b/tools/testing/selftests/net/busy_poller.c
new file mode 100644
index 000000000000..3a81f9c94795
--- /dev/null
+++ b/tools/testing/selftests/net/busy_poller.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <ynl.h>
+
+#include <arpa/inet.h>
+#include <netinet/in.h>
+
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <linux/genetlink.h>
+#include <linux/netlink.h>
+
+#include "netdev-user.h"
+
+/* The below ifdef blob is required because:
+ *
+ * - sys/epoll.h does not (yet) have the ioctl definitions included. So,
+ *   systems with older glibcs will not have them available. However,
+ *   sys/epoll.h does include the type definition for epoll_data, which is
+ *   needed by the user program (e.g. epoll_event.data.fd)
+ *
+ * - linux/eventpoll.h does not define the epoll_data type, it is simply an
+ *   opaque __u64. It does, however, include the ioctl definition.
+ *
+ * Including both headers is impossible (types would be redefined), so I've
+ * opted instead to take sys/epoll.h, and include the blob below.
+ *
+ * Someday, when glibc is globally up to date, the blob below can be removed.
+ */
+#if !defined(EPOLL_IOC_TYPE)
+struct epoll_params {
+	uint32_t busy_poll_usecs;
+	uint16_t busy_poll_budget;
+	uint8_t prefer_busy_poll;
+
+	/* pad the struct to a multiple of 64bits */
+	uint8_t __pad;
+};
+
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
+#endif
+
+static uint16_t cfg_port = 8000;
+static struct in_addr cfg_bind_addr = { .s_addr = INADDR_ANY };
+static char *cfg_outfile;
+static int cfg_max_events = 8;
+static uint32_t cfg_ifindex;
+
+/* busy poll params */
+static uint32_t cfg_busy_poll_usecs;
+static uint16_t cfg_busy_poll_budget;
+static uint8_t cfg_prefer_busy_poll;
+
+/* NAPI params */
+static uint32_t cfg_defer_hard_irqs;
+static uint64_t cfg_gro_flush_timeout;
+static uint64_t cfg_irq_suspend_timeout;
+static enum netdev_napi_threaded cfg_napi_threaded_poll = NETDEV_NAPI_THREADED_DISABLED;
+
+static void usage(const char *filepath)
+{
+	error(1, 0,
+	      "Usage: %s -p<port> -b<addr> -m<max_events> -u<busy_poll_usecs> -P<prefer_busy_poll> -g<busy_poll_budget> -o<outfile> -d<defer_hard_irqs> -r<gro_flush_timeout> -s<irq_suspend_timeout> -t<napi_threaded_poll> -i<ifindex>",
+	      filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	unsigned long long tmp;
+	int ret;
+	int c;
+
+	if (argc <= 1)
+		usage(argv[0]);
+
+	while ((c = getopt(argc, argv, "p:m:b:u:P:g:o:d:r:s:i:t:")) != -1) {
+		/* most options take integer values, except o and b, so reduce
+		 * code duplication a bit for the common case by calling
+		 * strtoull here and leave bounds checking and casting per
+		 * option below.
+		 */
+		if (c != 'o' && c != 'b')
+			tmp = strtoull(optarg, NULL, 0);
+
+		switch (c) {
+		case 'u':
+			if (tmp == ULLONG_MAX || tmp > UINT32_MAX)
+				error(1, ERANGE, "busy_poll_usecs too large");
+
+			cfg_busy_poll_usecs = (uint32_t)tmp;
+			break;
+		case 'P':
+			if (tmp == ULLONG_MAX || tmp > 1)
+				error(1, ERANGE,
+				      "prefer busy poll should be 0 or 1");
+
+			cfg_prefer_busy_poll = (uint8_t)tmp;
+			break;
+		case 'g':
+			if (tmp == ULLONG_MAX || tmp > UINT16_MAX)
+				error(1, ERANGE,
+				      "busy poll budget must be [0, UINT16_MAX]");
+
+			cfg_busy_poll_budget = (uint16_t)tmp;
+			break;
+		case 'p':
+			if (tmp == ULLONG_MAX || tmp > UINT16_MAX)
+				error(1, ERANGE, "port must be <= 65535");
+
+			cfg_port = (uint16_t)tmp;
+			break;
+		case 'b':
+			ret = inet_aton(optarg, &cfg_bind_addr);
+			if (ret == 0)
+				error(1, errno,
+				      "bind address %s invalid", optarg);
+			break;
+		case 'o':
+			cfg_outfile = strdup(optarg);
+			if (!cfg_outfile)
+				error(1, 0, "outfile invalid");
+			break;
+		case 'm':
+			if (tmp == ULLONG_MAX || tmp > INT_MAX)
+				error(1, ERANGE,
+				      "max events must be > 0 and <= INT_MAX");
+
+			cfg_max_events = (int)tmp;
+			break;
+		case 'd':
+			if (tmp == ULLONG_MAX || tmp > INT32_MAX)
+				error(1, ERANGE,
+				      "defer_hard_irqs must be <= INT32_MAX");
+
+			cfg_defer_hard_irqs = (uint32_t)tmp;
+			break;
+		case 'r':
+			if (tmp == ULLONG_MAX || tmp > UINT64_MAX)
+				error(1, ERANGE,
+				      "gro_flush_timeout must be < UINT64_MAX");
+
+			cfg_gro_flush_timeout = (uint64_t)tmp;
+			break;
+		case 's':
+			if (tmp == ULLONG_MAX || tmp > UINT64_MAX)
+				error(1, ERANGE,
+				      "irq_suspend_timeout must be < ULLONG_MAX");
+
+			cfg_irq_suspend_timeout = (uint64_t)tmp;
+			break;
+		case 'i':
+			if (tmp == ULLONG_MAX || tmp > INT_MAX)
+				error(1, ERANGE,
+				      "ifindex must be <= INT_MAX");
+
+			cfg_ifindex = (int)tmp;
+			break;
+		case 't':
+			if (tmp > 2)
+				error(1, ERANGE, "napi threaded poll value must be 0-2");
+
+			cfg_napi_threaded_poll = (enum netdev_napi_threaded)tmp;
+			break;
+		}
+	}
+
+	if (!cfg_ifindex)
+		usage(argv[0]);
+
+	if (optind != argc)
+		usage(argv[0]);
+}
+
+static void epoll_ctl_add(int epfd, int fd, uint32_t events)
+{
+	struct epoll_event ev;
+
+	ev.events = events;
+	ev.data.fd = fd;
+	if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev) == -1)
+		error(1, errno, "epoll_ctl add fd: %d", fd);
+}
+
+static void setnonblock(int sockfd)
+{
+	int flags;
+
+	flags = fcntl(sockfd, F_GETFL, 0);
+
+	if (fcntl(sockfd, F_SETFL, flags | O_NONBLOCK) == -1)
+		error(1, errno, "unable to set socket to nonblocking mode");
+}
+
+static void write_chunk(int fd, char *buf, ssize_t buflen)
+{
+	ssize_t remaining = buflen;
+	char *buf_offset = buf;
+	ssize_t writelen = 0;
+	ssize_t write_result;
+
+	while (writelen < buflen) {
+		write_result = write(fd, buf_offset, remaining);
+		if (write_result == -1)
+			error(1, errno, "unable to write data to outfile");
+
+		writelen += write_result;
+		remaining -= write_result;
+		buf_offset += write_result;
+	}
+}
+
+static void setup_queue(void)
+{
+	struct netdev_napi_get_list *napi_list = NULL;
+	struct netdev_napi_get_req_dump *req = NULL;
+	struct netdev_napi_set_req *set_req = NULL;
+	struct ynl_sock *ys;
+	struct ynl_error yerr;
+	uint32_t napi_id = 0;
+
+	ys = ynl_sock_create(&ynl_netdev_family, &yerr);
+	if (!ys)
+		error(1, 0, "YNL: %s", yerr.msg);
+
+	req = netdev_napi_get_req_dump_alloc();
+	netdev_napi_get_req_dump_set_ifindex(req, cfg_ifindex);
+	napi_list = netdev_napi_get_dump(ys, req);
+
+	/* assume there is 1 NAPI configured and take the first */
+	if (napi_list->obj._present.id)
+		napi_id = napi_list->obj.id;
+	else
+		error(1, 0, "napi ID not present?");
+
+	set_req = netdev_napi_set_req_alloc();
+	netdev_napi_set_req_set_id(set_req, napi_id);
+	netdev_napi_set_req_set_defer_hard_irqs(set_req, cfg_defer_hard_irqs);
+	netdev_napi_set_req_set_gro_flush_timeout(set_req,
+						  cfg_gro_flush_timeout);
+	netdev_napi_set_req_set_irq_suspend_timeout(set_req,
+						    cfg_irq_suspend_timeout);
+
+	if (cfg_napi_threaded_poll)
+		netdev_napi_set_req_set_threaded(set_req, cfg_napi_threaded_poll);
+
+	if (netdev_napi_set(ys, set_req))
+		error(1, 0, "can't set NAPI params: %s\n", yerr.msg);
+
+	netdev_napi_get_list_free(napi_list);
+	netdev_napi_get_req_dump_free(req);
+	netdev_napi_set_req_free(set_req);
+	ynl_sock_destroy(ys);
+}
+
+static void run_poller(void)
+{
+	struct epoll_event events[cfg_max_events];
+	struct epoll_params epoll_params = {0};
+	struct sockaddr_in server_addr;
+	int i, epfd, nfds;
+	ssize_t readlen;
+	int outfile_fd;
+	char buf[1024];
+	int sockfd;
+	int conn;
+	int val;
+
+	outfile_fd = open(cfg_outfile, O_WRONLY | O_CREAT, 0644);
+	if (outfile_fd == -1)
+		error(1, errno, "unable to open outfile: %s", cfg_outfile);
+
+	sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (sockfd == -1)
+		error(1, errno, "unable to create listen socket");
+
+	server_addr.sin_family = AF_INET;
+	server_addr.sin_port = htons(cfg_port);
+	server_addr.sin_addr = cfg_bind_addr;
+
+	/* these values are range checked during parse_opts, so casting is safe
+	 * here
+	 */
+	epoll_params.busy_poll_usecs = cfg_busy_poll_usecs;
+	epoll_params.busy_poll_budget = cfg_busy_poll_budget;
+	epoll_params.prefer_busy_poll = cfg_prefer_busy_poll;
+	epoll_params.__pad = 0;
+
+	val = 1;
+	if (setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val)))
+		error(1, errno, "poller setsockopt reuseaddr");
+
+	setnonblock(sockfd);
+
+	if (bind(sockfd, (struct sockaddr *)&server_addr,
+		 sizeof(struct sockaddr_in)))
+		error(0, errno, "poller bind to port: %d\n", cfg_port);
+
+	if (listen(sockfd, 1))
+		error(1, errno, "poller listen");
+
+	epfd = epoll_create1(0);
+	if (ioctl(epfd, EPIOCSPARAMS, &epoll_params) == -1)
+		error(1, errno, "unable to set busy poll params");
+
+	epoll_ctl_add(epfd, sockfd, EPOLLIN | EPOLLOUT | EPOLLET);
+
+	for (;;) {
+		nfds = epoll_wait(epfd, events, cfg_max_events, -1);
+		for (i = 0; i < nfds; i++) {
+			if (events[i].data.fd == sockfd) {
+				conn = accept(sockfd, NULL, NULL);
+				if (conn == -1)
+					error(1, errno,
+					      "accepting incoming connection failed");
+
+				setnonblock(conn);
+				epoll_ctl_add(epfd, conn,
+					      EPOLLIN | EPOLLET | EPOLLRDHUP |
+					      EPOLLHUP);
+			} else if (events[i].events & EPOLLIN) {
+				for (;;) {
+					readlen = read(events[i].data.fd, buf,
+						       sizeof(buf));
+					if (readlen > 0)
+						write_chunk(outfile_fd, buf,
+							    readlen);
+					else
+						break;
+				}
+			} else {
+				/* spurious event ? */
+			}
+			if (events[i].events & (EPOLLRDHUP | EPOLLHUP)) {
+				epoll_ctl(epfd, EPOLL_CTL_DEL,
+					  events[i].data.fd, NULL);
+				close(events[i].data.fd);
+				close(outfile_fd);
+				return;
+			}
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	parse_opts(argc, argv);
+	setup_queue();
+	run_poller();
+
+	if (cfg_outfile)
+		free(cfg_outfile);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/can/.gitignore b/tools/testing/selftests/net/can/.gitignore
new file mode 100644
index 000000000000..764a53fc837f
--- /dev/null
+++ b/tools/testing/selftests/net/can/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+test_raw_filter
diff --git a/tools/testing/selftests/net/can/Makefile b/tools/testing/selftests/net/can/Makefile
new file mode 100644
index 000000000000..5b82e60a03e7
--- /dev/null
+++ b/tools/testing/selftests/net/can/Makefile
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+CFLAGS += -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES)
+
+TEST_PROGS := test_raw_filter.sh
+
+TEST_GEN_FILES := test_raw_filter
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/can/config b/tools/testing/selftests/net/can/config
new file mode 100644
index 000000000000..188f79796670
--- /dev/null
+++ b/tools/testing/selftests/net/can/config
@@ -0,0 +1,3 @@
+CONFIG_CAN=m
+CONFIG_CAN_DEV=m
+CONFIG_CAN_VCAN=m
diff --git a/tools/testing/selftests/net/can/test_raw_filter.c b/tools/testing/selftests/net/can/test_raw_filter.c
new file mode 100644
index 000000000000..bb8ae8854273
--- /dev/null
+++ b/tools/testing/selftests/net/can/test_raw_filter.c
@@ -0,0 +1,405 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+/*
+ * Copyright (c) 2011 Volkswagen Group Electronic Research
+ * All rights reserved.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <net/if.h>
+#include <linux/if.h>
+
+#include <linux/can.h>
+#include <linux/can/raw.h>
+
+#include "kselftest_harness.h"
+
+#define ID 0x123
+
+char CANIF[IFNAMSIZ];
+
+static int send_can_frames(int sock, int testcase)
+{
+	struct can_frame frame;
+
+	frame.can_dlc = 1;
+	frame.data[0] = testcase;
+
+	frame.can_id = ID;
+	if (write(sock, &frame, sizeof(frame)) < 0)
+		goto write_err;
+
+	frame.can_id = (ID | CAN_RTR_FLAG);
+	if (write(sock, &frame, sizeof(frame)) < 0)
+		goto write_err;
+
+	frame.can_id = (ID | CAN_EFF_FLAG);
+	if (write(sock, &frame, sizeof(frame)) < 0)
+		goto write_err;
+
+	frame.can_id = (ID | CAN_EFF_FLAG | CAN_RTR_FLAG);
+	if (write(sock, &frame, sizeof(frame)) < 0)
+		goto write_err;
+
+	return 0;
+
+write_err:
+	perror("write");
+	return 1;
+}
+
+FIXTURE(can_filters) {
+	int sock;
+};
+
+FIXTURE_SETUP(can_filters)
+{
+	struct sockaddr_can addr;
+	struct ifreq ifr;
+	int recv_own_msgs = 1;
+	int s, ret;
+
+	s = socket(PF_CAN, SOCK_RAW, CAN_RAW);
+	ASSERT_GE(s, 0)
+		TH_LOG("failed to create CAN_RAW socket: %d", errno);
+
+	strncpy(ifr.ifr_name, CANIF, sizeof(ifr.ifr_name));
+	ret = ioctl(s, SIOCGIFINDEX, &ifr);
+	ASSERT_GE(ret, 0)
+		TH_LOG("failed SIOCGIFINDEX: %d", errno);
+
+	addr.can_family = AF_CAN;
+	addr.can_ifindex = ifr.ifr_ifindex;
+
+	setsockopt(s, SOL_CAN_RAW, CAN_RAW_RECV_OWN_MSGS,
+		   &recv_own_msgs, sizeof(recv_own_msgs));
+
+	ret = bind(s, (struct sockaddr *)&addr, sizeof(addr));
+	ASSERT_EQ(ret, 0)
+		TH_LOG("failed bind socket: %d", errno);
+
+	self->sock = s;
+}
+
+FIXTURE_TEARDOWN(can_filters)
+{
+	close(self->sock);
+}
+
+FIXTURE_VARIANT(can_filters) {
+	int testcase;
+	canid_t id;
+	canid_t mask;
+	int exp_num_rx;
+	canid_t exp_flags[];
+};
+
+/* Receive all frames when filtering for the ID in standard frame format */
+FIXTURE_VARIANT_ADD(can_filters, base) {
+	.testcase = 1,
+	.id = ID,
+	.mask = CAN_SFF_MASK,
+	.exp_num_rx = 4,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Ignore EFF flag in filter ID if not covered by filter mask */
+FIXTURE_VARIANT_ADD(can_filters, base_eff) {
+	.testcase = 2,
+	.id = ID | CAN_EFF_FLAG,
+	.mask = CAN_SFF_MASK,
+	.exp_num_rx = 4,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Ignore RTR flag in filter ID if not covered by filter mask */
+FIXTURE_VARIANT_ADD(can_filters, base_rtr) {
+	.testcase = 3,
+	.id = ID | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK,
+	.exp_num_rx = 4,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Ignore EFF and RTR flags in filter ID if not covered by filter mask */
+FIXTURE_VARIANT_ADD(can_filters, base_effrtr) {
+	.testcase = 4,
+	.id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK,
+	.exp_num_rx = 4,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only SFF frames when expecting no EFF flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_eff) {
+	.testcase = 5,
+	.id = ID,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only EFF frames when filter id and filter mask include EFF flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_eff_eff) {
+	.testcase = 6,
+	.id = ID | CAN_EFF_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only SFF frames when expecting no EFF flag, ignoring RTR flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_eff_rtr) {
+	.testcase = 7,
+	.id = ID | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		0,
+		CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only EFF frames when filter id and filter mask include EFF flag,
+ * ignoring RTR flag
+ */
+FIXTURE_VARIANT_ADD(can_filters, filter_eff_effrtr) {
+	.testcase = 8,
+	.id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		CAN_EFF_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive no remote frames when filtering for no RTR flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_rtr) {
+	.testcase = 9,
+	.id = ID,
+	.mask = CAN_SFF_MASK | CAN_RTR_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		0,
+		CAN_EFF_FLAG,
+	},
+};
+
+/* Receive no remote frames when filtering for no RTR flag, ignoring EFF flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_rtr_eff) {
+	.testcase = 10,
+	.id = ID | CAN_EFF_FLAG,
+	.mask = CAN_SFF_MASK | CAN_RTR_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		0,
+		CAN_EFF_FLAG,
+	},
+};
+
+/* Receive only remote frames when filter includes RTR flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_rtr_rtr) {
+	.testcase = 11,
+	.id = ID | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_RTR_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only remote frames when filter includes RTR flag, ignoring EFF
+ * flag
+ */
+FIXTURE_VARIANT_ADD(can_filters, filter_rtr_effrtr) {
+	.testcase = 12,
+	.id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_RTR_FLAG,
+	.exp_num_rx = 2,
+	.exp_flags = {
+		CAN_RTR_FLAG,
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only SFF data frame when filtering for no flags */
+FIXTURE_VARIANT_ADD(can_filters, filter_effrtr) {
+	.testcase = 13,
+	.id = ID,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		0,
+	},
+};
+
+/* Receive only EFF data frame when filtering for EFF but no RTR flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_eff) {
+	.testcase = 14,
+	.id = ID | CAN_EFF_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		CAN_EFF_FLAG,
+	},
+};
+
+/* Receive only SFF remote frame when filtering for RTR but no EFF flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_rtr) {
+	.testcase = 15,
+	.id = ID | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only EFF remote frame when filtering for EFF and RTR flag */
+FIXTURE_VARIANT_ADD(can_filters, filter_effrtr_effrtr) {
+	.testcase = 16,
+	.id = ID | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.mask = CAN_SFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		CAN_EFF_FLAG | CAN_RTR_FLAG,
+	},
+};
+
+/* Receive only SFF data frame when filtering for no EFF flag and no RTR flag
+ * but based on EFF mask
+ */
+FIXTURE_VARIANT_ADD(can_filters, eff) {
+	.testcase = 17,
+	.id = ID,
+	.mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		0,
+	},
+};
+
+/* Receive only EFF data frame when filtering for EFF flag and no RTR flag but
+ * based on EFF mask
+ */
+FIXTURE_VARIANT_ADD(can_filters, eff_eff) {
+	.testcase = 18,
+	.id = ID | CAN_EFF_FLAG,
+	.mask = CAN_EFF_MASK | CAN_EFF_FLAG | CAN_RTR_FLAG,
+	.exp_num_rx = 1,
+	.exp_flags = {
+		CAN_EFF_FLAG,
+	},
+};
+
+/* This test verifies that the raw CAN filters work, by checking if only frames
+ * with the expected set of flags are received. For each test case, the given
+ * filter (id and mask) is added and four CAN frames are sent with every
+ * combination of set/unset EFF/RTR flags.
+ */
+TEST_F(can_filters, test_filter)
+{
+	struct can_filter rfilter;
+	int ret;
+
+	rfilter.can_id = variant->id;
+	rfilter.can_mask = variant->mask;
+	setsockopt(self->sock, SOL_CAN_RAW, CAN_RAW_FILTER,
+		   &rfilter, sizeof(rfilter));
+
+	TH_LOG("filters: can_id = 0x%08X can_mask = 0x%08X",
+		rfilter.can_id, rfilter.can_mask);
+
+	ret = send_can_frames(self->sock, variant->testcase);
+	ASSERT_EQ(ret, 0)
+		TH_LOG("failed to send CAN frames");
+
+	for (int i = 0; i <= variant->exp_num_rx; i++) {
+		struct can_frame frame;
+		struct timeval tv = {
+			.tv_sec = 0,
+			.tv_usec = 50000, /* 50ms timeout */
+		};
+		fd_set rdfs;
+
+		FD_ZERO(&rdfs);
+		FD_SET(self->sock, &rdfs);
+
+		ret = select(self->sock + 1, &rdfs, NULL, NULL, &tv);
+		ASSERT_GE(ret, 0)
+			TH_LOG("failed select for frame %d, err: %d)", i, errno);
+
+		ret = FD_ISSET(self->sock, &rdfs);
+		if (i == variant->exp_num_rx) {
+			ASSERT_EQ(ret, 0)
+				TH_LOG("too many frames received");
+		} else {
+			ASSERT_NE(ret, 0)
+				TH_LOG("too few frames received");
+
+			ret = read(self->sock, &frame, sizeof(frame));
+			ASSERT_GE(ret, 0)
+				TH_LOG("failed to read frame %d, err: %d", i, errno);
+
+			TH_LOG("rx: can_id = 0x%08X rx = %d", frame.can_id, i);
+
+			ASSERT_EQ(ID, frame.can_id & CAN_SFF_MASK)
+				TH_LOG("received wrong can_id");
+			ASSERT_EQ(variant->testcase, frame.data[0])
+				TH_LOG("received wrong test case");
+
+			ASSERT_EQ(frame.can_id & ~CAN_ERR_MASK,
+				  variant->exp_flags[i])
+				TH_LOG("received unexpected flags");
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	char *ifname = getenv("CANIF");
+
+	if (!ifname) {
+		printf("CANIF environment variable must contain the test interface\n");
+		return KSFT_FAIL;
+	}
+
+	strncpy(CANIF, ifname, sizeof(CANIF) - 1);
+
+	return test_harness_run(argc, argv);
+}
diff --git a/tools/testing/selftests/net/can/test_raw_filter.sh b/tools/testing/selftests/net/can/test_raw_filter.sh
new file mode 100755
index 000000000000..276d6c06ac95
--- /dev/null
+++ b/tools/testing/selftests/net/can/test_raw_filter.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	test_raw_filter
+"
+
+net_dir=$(dirname $0)/..
+source $net_dir/lib.sh
+
+export CANIF=${CANIF:-"vcan0"}
+BITRATE=${BITRATE:-500000}
+
+setup()
+{
+	if [[ $CANIF == vcan* ]]; then
+		ip link add name $CANIF type vcan || exit $ksft_skip
+	else
+		ip link set dev $CANIF type can bitrate $BITRATE || exit $ksft_skip
+	fi
+	ip link set dev $CANIF up
+	pwd
+}
+
+cleanup()
+{
+	ip link set dev $CANIF down
+	if [[ $CANIF == vcan* ]]; then
+		ip link delete $CANIF
+	fi
+}
+
+test_raw_filter()
+{
+	./test_raw_filter
+	check_err $?
+	log_test "test_raw_filter"
+}
+
+trap cleanup EXIT
+setup
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/cmsg_ip.sh b/tools/testing/selftests/net/cmsg_ip.sh
new file mode 100755
index 000000000000..b55680e081ad
--- /dev/null
+++ b/tools/testing/selftests/net/cmsg_ip.sh
@@ -0,0 +1,187 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+IP4=172.16.0.1/24
+TGT4=172.16.0.2
+IP6=2001:db8:1::1/64
+TGT6=2001:db8:1::2
+TMPF=$(mktemp --suffix ".pcap")
+
+cleanup()
+{
+    rm -f $TMPF
+    cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+tcpdump -h | grep immediate-mode >> /dev/null
+if [ $? -ne 0 ]; then
+    echo "SKIP - tcpdump with --immediate-mode option required"
+    exit $ksft_skip
+fi
+
+# Namespaces
+setup_ns NS
+NSEXE="ip netns exec $NS"
+
+$NSEXE sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
+
+# Connectivity
+ip -netns $NS link add type dummy
+ip -netns $NS link set dev dummy0 up
+ip -netns $NS addr add $IP4 dev dummy0
+ip -netns $NS addr add $IP6 dev dummy0
+
+# Test
+BAD=0
+TOTAL=0
+
+check_result() {
+    ((TOTAL++))
+    if [ $1 -ne $2 ]; then
+	echo "  Case $3 returned $1, expected $2"
+	((BAD++))
+    fi
+}
+
+# IPV6_DONTFRAG
+for ovr in setsock cmsg both diff; do
+    for df in 0 1; do
+	for p in u U i r; do
+	    [ $p == "u" ] && prot=UDP
+	    [ $p == "U" ] && prot=UDP
+	    [ $p == "i" ] && prot=ICMP
+	    [ $p == "r" ] && prot=RAW
+
+	    [ $ovr == "setsock" ] && m="-F $df"
+	    [ $ovr == "cmsg" ]    && m="-f $df"
+	    [ $ovr == "both" ]    && m="-F $df -f $df"
+	    [ $ovr == "diff" ]    && m="-F $((1 - df)) -f $df"
+
+	    $NSEXE ./cmsg_sender -s -S 2000 -6 -p $p $m $TGT6 1234
+	    check_result $? $df "DONTFRAG $prot $ovr"
+	done
+    done
+done
+
+# IP_TOS + IPV6_TCLASS
+
+test_dscp() {
+    local -r IPVER=$1
+    local -r TGT=$2
+    local -r MATCH=$3
+
+    local -r TOS=0x10
+    local -r TOS2=0x20
+    local -r ECN=0x3
+
+    ip $IPVER -netns $NS rule add tos $TOS lookup 300
+    ip $IPVER -netns $NS route add table 300 prohibit any
+
+    for ovr in setsock cmsg both diff; do
+	for p in u U i r; do
+	    [ $p == "u" ] && prot=UDP
+	    [ $p == "U" ] && prot=UDP
+	    [ $p == "i" ] && prot=ICMP
+	    [ $p == "r" ] && prot=RAW
+
+	    [ $ovr == "setsock" ] && m="-C"
+	    [ $ovr == "cmsg" ]    && m="-c"
+	    [ $ovr == "both" ]    && m="-C $((TOS2)) -c"
+	    [ $ovr == "diff" ]    && m="-C $((TOS )) -c"
+
+	    $NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null &
+	    BG=$!
+	    sleep 0.05
+
+	    $NSEXE ./cmsg_sender $IPVER -p $p $m $((TOS2)) $TGT 1234
+	    check_result $? 0 "$MATCH $prot $ovr - pass"
+
+	    while [ -d /proc/$BG ]; do
+	        $NSEXE ./cmsg_sender $IPVER -p $p $m $((TOS2)) $TGT 1234
+	    done
+
+	    tcpdump -r $TMPF -v 2>&1 | grep "$MATCH $TOS2" >> /dev/null
+	    check_result $? 0 "$MATCH $prot $ovr - packet data"
+	    rm $TMPF
+
+	    [ $ovr == "both" ]    && m="-C $((TOS )) -c"
+	    [ $ovr == "diff" ]    && m="-C $((TOS2)) -c"
+
+	    # Match prohibit rule: expect failure
+	    $NSEXE ./cmsg_sender $IPVER -p $p $m $((TOS)) -s $TGT 1234
+	    check_result $? 1 "$MATCH $prot $ovr - rejection"
+
+	    # Match prohibit rule: IPv4 masks ECN: expect failure
+	    if [[ "$IPVER" == "-4" ]]; then
+		$NSEXE ./cmsg_sender $IPVER -p $p $m "$((TOS | ECN))" -s $TGT 1234
+		check_result $? 1 "$MATCH $prot $ovr - rejection (ECN)"
+	    fi
+	done
+    done
+}
+
+test_dscp -4 $TGT4 tos
+test_dscp -6 $TGT6 class
+
+# IP_TTL + IPV6_HOPLIMIT
+test_ttl_hoplimit() {
+    local -r IPVER=$1
+    local -r TGT=$2
+    local -r MATCH=$3
+
+    local -r LIM=4
+
+    for ovr in setsock cmsg both diff; do
+	for p in u U i r; do
+	    [ $p == "u" ] && prot=UDP
+	    [ $p == "U" ] && prot=UDP
+	    [ $p == "i" ] && prot=ICMP
+	    [ $p == "r" ] && prot=RAW
+
+	    [ $ovr == "setsock" ] && m="-L"
+	    [ $ovr == "cmsg" ]    && m="-l"
+	    [ $ovr == "both" ]    && m="-L $LIM -l"
+	    [ $ovr == "diff" ]    && m="-L $((LIM + 1)) -l"
+
+	    $NSEXE nohup tcpdump --immediate-mode -p -ni dummy0 -w $TMPF -c 4 2> /dev/null &
+	    BG=$!
+	    sleep 0.05
+
+	    $NSEXE ./cmsg_sender $IPVER -p $p $m $LIM $TGT 1234
+	    check_result $? 0 "$MATCH $prot $ovr - pass"
+
+	    while [ -d /proc/$BG ]; do
+		$NSEXE ./cmsg_sender $IPVER -p $p $m $LIM $TGT 1234
+	    done
+
+	    tcpdump -r $TMPF -v 2>&1 | grep "$MATCH $LIM[^0-9]" >> /dev/null
+	    check_result $? 0 "$MATCH $prot $ovr - packet data"
+	    rm $TMPF
+	done
+    done
+}
+
+test_ttl_hoplimit -4 $TGT4 ttl
+test_ttl_hoplimit -6 $TGT6 hlim
+
+# IPV6 exthdr
+for p in u U i r; do
+    # Very basic "does it crash" test
+    for h in h d r; do
+	$NSEXE ./cmsg_sender -p $p -6 -H $h $TGT6 1234
+	check_result $? 0 "ExtHdr $prot $ovr - pass"
+    done
+done
+
+# Summary
+if [ $BAD -ne 0 ]; then
+    echo "FAIL - $BAD/$TOTAL cases failed"
+    exit 1
+else
+    echo "OK"
+    exit 0
+fi
diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c
new file mode 100644
index 000000000000..67a72b1a2f3d
--- /dev/null
+++ b/tools/testing/selftests/net/cmsg_sender.c
@@ -0,0 +1,583 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include <errno.h>
+#include <error.h>
+#include <netdb.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <linux/errqueue.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/net_tstamp.h>
+#include <linux/types.h>
+#include <linux/udp.h>
+#include <sys/socket.h>
+
+#include "kselftest.h"
+
+enum {
+	ERN_SUCCESS = 0,
+	/* Well defined errors, callers may depend on these */
+	ERN_SEND = 1,
+	/* Informational, can reorder */
+	ERN_HELP,
+	ERN_SEND_SHORT,
+	ERN_SOCK_CREATE,
+	ERN_RESOLVE,
+	ERN_CMSG_WR,
+	ERN_SOCKOPT,
+	ERN_GETTIME,
+	ERN_RECVERR,
+	ERN_CMSG_RD,
+	ERN_CMSG_RCV,
+	ERN_SEND_MORE,
+};
+
+struct option_cmsg_u32 {
+	bool ena;
+	unsigned int val;
+};
+
+struct options {
+	bool silent_send;
+	const char *host;
+	const char *service;
+	unsigned int size;
+	unsigned int num_pkt;
+	bool msg_more;
+	struct {
+		unsigned int mark;
+		unsigned int dontfrag;
+		unsigned int tclass;
+		unsigned int hlimit;
+		unsigned int priority;
+	} sockopt;
+	struct {
+		unsigned int family;
+		unsigned int type;
+		unsigned int proto;
+	} sock;
+	struct option_cmsg_u32 mark;
+	struct option_cmsg_u32 priority;
+	struct {
+		bool ena;
+		unsigned int delay;
+	} txtime;
+	struct {
+		bool ena;
+	} ts;
+	struct {
+		struct option_cmsg_u32 dontfrag;
+		struct option_cmsg_u32 tclass;
+		struct option_cmsg_u32 hlimit;
+		struct option_cmsg_u32 exthdr;
+	} cmsg;
+} opt = {
+	.size = 13,
+	.num_pkt = 1,
+	.sock = {
+		.family	= AF_UNSPEC,
+		.type	= SOCK_DGRAM,
+		.proto	= IPPROTO_UDP,
+	},
+};
+
+static struct timespec time_start_real;
+static struct timespec time_start_mono;
+
+static void __attribute__((noreturn)) cs_usage(const char *bin)
+{
+	printf("Usage: %s [opts] <dst host> <dst port / service>\n", bin);
+	printf("Options:\n"
+	       "\t\t-s      Silent send() failures\n"
+	       "\t\t-S      send() size\n"
+	       "\t\t-4/-6   Force IPv4 / IPv6 only\n"
+	       "\t\t-p prot Socket protocol\n"
+	       "\t\t        (u = UDP (default); i = ICMP; r = RAW;\n"
+	       "\t\t         U = UDP with MSG_MORE)\n"
+	       "\n"
+	       "\t\t-m val  Set SO_MARK with given value\n"
+	       "\t\t-M val  Set SO_MARK via setsockopt\n"
+	       "\t\t-P val  Set SO_PRIORITY via setsockopt\n"
+	       "\t\t-Q val  Set SO_PRIORITY via cmsg\n"
+	       "\t\t-d val  Set SO_TXTIME with given delay (usec)\n"
+	       "\t\t-t      Enable time stamp reporting\n"
+	       "\t\t-f val  Set don't fragment via cmsg\n"
+	       "\t\t-F val  Set don't fragment via setsockopt\n"
+	       "\t\t-c val  Set TOS/TCLASS via cmsg\n"
+	       "\t\t-C val  Set TOS/TCLASS via setsockopt\n"
+	       "\t\t-l val  Set TTL/HOPLIMIT via cmsg\n"
+	       "\t\t-L val  Set TTL/HOPLIMIT via setsockopt\n"
+	       "\t\t-H type Add an IPv6 header option\n"
+	       "\t\t        (h = HOP; d = DST; r = RTDST)\n"
+	       "\n");
+	exit(ERN_HELP);
+}
+
+static void cs_parse_args(int argc, char *argv[])
+{
+	int o;
+
+	while ((o = getopt(argc, argv, "46sS:p:P:m:M:n:d:tf:F:c:C:l:L:H:Q:")) != -1) {
+		switch (o) {
+		case 's':
+			opt.silent_send = true;
+			break;
+		case 'S':
+			opt.size = atoi(optarg);
+			break;
+		case '4':
+			opt.sock.family = AF_INET;
+			break;
+		case '6':
+			opt.sock.family = AF_INET6;
+			break;
+		case 'p':
+			if (*optarg == 'u') {
+				opt.sock.proto = IPPROTO_UDP;
+			} else if (*optarg == 'U') {
+				opt.sock.proto = IPPROTO_UDP;
+				opt.msg_more = true;
+			} else if (*optarg == 'i' || *optarg == 'I') {
+				opt.sock.proto = IPPROTO_ICMP;
+			} else if (*optarg == 'r') {
+				opt.sock.type = SOCK_RAW;
+			} else {
+				printf("Error: unknown protocol: %s\n", optarg);
+				cs_usage(argv[0]);
+			}
+			break;
+		case 'P':
+			opt.sockopt.priority = atoi(optarg);
+			break;
+		case 'm':
+			opt.mark.ena = true;
+			opt.mark.val = atoi(optarg);
+			break;
+		case 'Q':
+			opt.priority.ena = true;
+			opt.priority.val = atoi(optarg);
+			break;
+		case 'M':
+			opt.sockopt.mark = atoi(optarg);
+			break;
+		case 'n':
+			opt.num_pkt = atoi(optarg);
+			break;
+		case 'd':
+			opt.txtime.ena = true;
+			opt.txtime.delay = atoi(optarg);
+			break;
+		case 't':
+			opt.ts.ena = true;
+			break;
+		case 'f':
+			opt.cmsg.dontfrag.ena = true;
+			opt.cmsg.dontfrag.val = atoi(optarg);
+			break;
+		case 'F':
+			opt.sockopt.dontfrag = atoi(optarg);
+			break;
+		case 'c':
+			opt.cmsg.tclass.ena = true;
+			opt.cmsg.tclass.val = atoi(optarg);
+			break;
+		case 'C':
+			opt.sockopt.tclass = atoi(optarg);
+			break;
+		case 'l':
+			opt.cmsg.hlimit.ena = true;
+			opt.cmsg.hlimit.val = atoi(optarg);
+			break;
+		case 'L':
+			opt.sockopt.hlimit = atoi(optarg);
+			break;
+		case 'H':
+			opt.cmsg.exthdr.ena = true;
+			switch (optarg[0]) {
+			case 'h':
+				opt.cmsg.exthdr.val = IPV6_HOPOPTS;
+				break;
+			case 'd':
+				opt.cmsg.exthdr.val = IPV6_DSTOPTS;
+				break;
+			case 'r':
+				opt.cmsg.exthdr.val = IPV6_RTHDRDSTOPTS;
+				break;
+			default:
+				printf("Error: hdr type: %s\n", optarg);
+				break;
+			}
+			break;
+		}
+	}
+
+	if (optind != argc - 2)
+		cs_usage(argv[0]);
+
+	opt.host = argv[optind];
+	opt.service = argv[optind + 1];
+}
+
+static void memrnd(void *s, size_t n)
+{
+	int *dword = s;
+	char *byte;
+
+	for (; n >= 4; n -= 4)
+		*dword++ = rand();
+	byte = (void *)dword;
+	while (n--)
+		*byte++ = rand();
+}
+
+static void
+ca_write_cmsg_u32(char *cbuf, size_t cbuf_sz, size_t *cmsg_len,
+		  int level, int optname, struct option_cmsg_u32 *uopt)
+{
+	struct cmsghdr *cmsg;
+
+	if (!uopt->ena)
+		return;
+
+	cmsg = (struct cmsghdr *)(cbuf + *cmsg_len);
+	*cmsg_len += CMSG_SPACE(sizeof(__u32));
+	if (cbuf_sz < *cmsg_len)
+		error(ERN_CMSG_WR, EFAULT, "cmsg buffer too small");
+
+	cmsg->cmsg_level = level;
+	cmsg->cmsg_type = optname;
+	cmsg->cmsg_len = CMSG_LEN(sizeof(__u32));
+	*(__u32 *)CMSG_DATA(cmsg) = uopt->val;
+}
+
+static void
+cs_write_cmsg(int fd, struct msghdr *msg, char *cbuf, size_t cbuf_sz)
+{
+	struct cmsghdr *cmsg;
+	size_t cmsg_len;
+
+	msg->msg_control = cbuf;
+	cmsg_len = 0;
+
+	ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+			  SOL_SOCKET, SO_MARK, &opt.mark);
+	ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+			  SOL_SOCKET, SO_PRIORITY, &opt.priority);
+
+	if (opt.sock.family == AF_INET) {
+		ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+				  SOL_IP, IP_TOS, &opt.cmsg.tclass);
+		ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+				  SOL_IP, IP_TTL, &opt.cmsg.hlimit);
+	} else {
+		ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+				  SOL_IPV6, IPV6_DONTFRAG, &opt.cmsg.dontfrag);
+		ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+				  SOL_IPV6, IPV6_TCLASS, &opt.cmsg.tclass);
+		ca_write_cmsg_u32(cbuf, cbuf_sz, &cmsg_len,
+				  SOL_IPV6, IPV6_HOPLIMIT, &opt.cmsg.hlimit);
+	}
+
+	if (opt.txtime.ena) {
+		__u64 txtime;
+
+		txtime = time_start_mono.tv_sec * (1000ULL * 1000 * 1000) +
+			 time_start_mono.tv_nsec +
+			 opt.txtime.delay * 1000;
+
+		cmsg = (struct cmsghdr *)(cbuf + cmsg_len);
+		cmsg_len += CMSG_SPACE(sizeof(txtime));
+		if (cbuf_sz < cmsg_len)
+			error(ERN_CMSG_WR, EFAULT, "cmsg buffer too small");
+
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SCM_TXTIME;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(txtime));
+		memcpy(CMSG_DATA(cmsg), &txtime, sizeof(txtime));
+	}
+	if (opt.ts.ena) {
+		cmsg = (struct cmsghdr *)(cbuf + cmsg_len);
+		cmsg_len += CMSG_SPACE(sizeof(__u32));
+		if (cbuf_sz < cmsg_len)
+			error(ERN_CMSG_WR, EFAULT, "cmsg buffer too small");
+
+		cmsg->cmsg_level = SOL_SOCKET;
+		cmsg->cmsg_type = SO_TIMESTAMPING;
+		cmsg->cmsg_len = CMSG_LEN(sizeof(__u32));
+		*(__u32 *)CMSG_DATA(cmsg) = SOF_TIMESTAMPING_TX_SCHED |
+					    SOF_TIMESTAMPING_TX_SOFTWARE;
+	}
+	if (opt.cmsg.exthdr.ena) {
+		cmsg = (struct cmsghdr *)(cbuf + cmsg_len);
+		cmsg_len += CMSG_SPACE(8);
+		if (cbuf_sz < cmsg_len)
+			error(ERN_CMSG_WR, EFAULT, "cmsg buffer too small");
+
+		cmsg->cmsg_level = SOL_IPV6;
+		cmsg->cmsg_type = opt.cmsg.exthdr.val;
+		cmsg->cmsg_len = CMSG_LEN(8);
+		*(__u64 *)CMSG_DATA(cmsg) = 0;
+	}
+
+	if (cmsg_len)
+		msg->msg_controllen = cmsg_len;
+	else
+		msg->msg_control = NULL;
+}
+
+static const char *cs_ts_info2str(unsigned int info)
+{
+	static const char *names[] = {
+		[SCM_TSTAMP_SND]	= "SND",
+		[SCM_TSTAMP_SCHED]	= "SCHED",
+		[SCM_TSTAMP_ACK]	= "ACK",
+	};
+
+	if (info < ARRAY_SIZE(names))
+		return names[info];
+	return "unknown";
+}
+
+static unsigned long
+cs_read_cmsg(int fd, struct msghdr *msg, char *cbuf, size_t cbuf_sz)
+{
+	struct sock_extended_err *see;
+	struct scm_timestamping *ts;
+	unsigned long ts_seen = 0;
+	struct cmsghdr *cmsg;
+	int i, err;
+
+	if (!opt.ts.ena)
+		return 0;
+	msg->msg_control = cbuf;
+	msg->msg_controllen = cbuf_sz;
+
+	while (true) {
+		ts = NULL;
+		see = NULL;
+		memset(cbuf, 0, cbuf_sz);
+
+		err = recvmsg(fd, msg, MSG_ERRQUEUE);
+		if (err < 0) {
+			if (errno == EAGAIN)
+				break;
+			error(ERN_RECVERR, errno, "recvmsg ERRQ");
+		}
+
+		for (cmsg = CMSG_FIRSTHDR(msg); cmsg != NULL;
+		     cmsg = CMSG_NXTHDR(msg, cmsg)) {
+			if (cmsg->cmsg_level == SOL_SOCKET &&
+			    cmsg->cmsg_type == SO_TIMESTAMPING_OLD) {
+				if (cmsg->cmsg_len < sizeof(*ts))
+					error(ERN_CMSG_RD, EINVAL, "TS cmsg");
+
+				ts = (void *)CMSG_DATA(cmsg);
+			}
+			if ((cmsg->cmsg_level == SOL_IP &&
+			     cmsg->cmsg_type == IP_RECVERR) ||
+			    (cmsg->cmsg_level == SOL_IPV6 &&
+			     cmsg->cmsg_type == IPV6_RECVERR)) {
+				if (cmsg->cmsg_len < sizeof(*see))
+					error(ERN_CMSG_RD, EINVAL, "sock_err cmsg");
+
+				see = (void *)CMSG_DATA(cmsg);
+			}
+		}
+
+		if (!ts)
+			error(ERN_CMSG_RCV, ENOENT, "TS cmsg not found");
+		if (!see)
+			error(ERN_CMSG_RCV, ENOENT, "sock_err cmsg not found");
+
+		for (i = 0; i < 3; i++) {
+			unsigned long long rel_time;
+
+			if (!ts->ts[i].tv_sec && !ts->ts[i].tv_nsec)
+				continue;
+
+			rel_time = (ts->ts[i].tv_sec - time_start_real.tv_sec) *
+				(1000ULL * 1000) +
+				(ts->ts[i].tv_nsec - time_start_real.tv_nsec) /
+				1000;
+			printf(" %5s ts%d %lluus\n",
+			       cs_ts_info2str(see->ee_info),
+			       i, rel_time);
+			ts_seen |= 1 << see->ee_info;
+		}
+	}
+
+	return ts_seen;
+}
+
+static void ca_set_sockopts(int fd)
+{
+	if (opt.sockopt.mark &&
+	    setsockopt(fd, SOL_SOCKET, SO_MARK,
+		       &opt.sockopt.mark, sizeof(opt.sockopt.mark)))
+		error(ERN_SOCKOPT, errno, "setsockopt SO_MARK");
+	if (opt.sockopt.priority &&
+	    setsockopt(fd, SOL_SOCKET, SO_PRIORITY,
+		       &opt.sockopt.priority, sizeof(opt.sockopt.priority)))
+		error(ERN_SOCKOPT, errno, "setsockopt SO_PRIORITY");
+
+	if (opt.sock.family == AF_INET) {
+		if (opt.sockopt.tclass &&
+		    setsockopt(fd, SOL_IP, IP_TOS,
+			       &opt.sockopt.tclass, sizeof(opt.sockopt.tclass)))
+			error(ERN_SOCKOPT, errno, "setsockopt IP_TOS");
+		if (opt.sockopt.hlimit &&
+		    setsockopt(fd, SOL_IP, IP_TTL,
+			       &opt.sockopt.hlimit, sizeof(opt.sockopt.hlimit)))
+			error(ERN_SOCKOPT, errno, "setsockopt IP_TTL");
+	} else {
+		if (opt.sockopt.dontfrag &&
+		    setsockopt(fd, SOL_IPV6, IPV6_DONTFRAG,
+			       &opt.sockopt.dontfrag, sizeof(opt.sockopt.dontfrag)))
+			error(ERN_SOCKOPT, errno, "setsockopt IPV6_DONTFRAG");
+		if (opt.sockopt.tclass &&
+		    setsockopt(fd, SOL_IPV6, IPV6_TCLASS,
+			       &opt.sockopt.tclass, sizeof(opt.sockopt.tclass)))
+			error(ERN_SOCKOPT, errno, "setsockopt IPV6_TCLASS");
+		if (opt.sockopt.hlimit &&
+		    setsockopt(fd, SOL_IPV6, IPV6_UNICAST_HOPS,
+			       &opt.sockopt.hlimit, sizeof(opt.sockopt.hlimit)))
+			error(ERN_SOCKOPT, errno, "setsockopt IPV6_HOPLIMIT");
+	}
+
+	if (opt.txtime.ena) {
+		struct sock_txtime so_txtime = {
+			.clockid = CLOCK_MONOTONIC,
+		};
+
+		if (setsockopt(fd, SOL_SOCKET, SO_TXTIME,
+			       &so_txtime, sizeof(so_txtime)))
+			error(ERN_SOCKOPT, errno, "setsockopt TXTIME");
+	}
+	if (opt.ts.ena) {
+		__u32 val = SOF_TIMESTAMPING_SOFTWARE |
+			SOF_TIMESTAMPING_OPT_TSONLY;
+
+		if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
+			       &val, sizeof(val)))
+			error(ERN_SOCKOPT, errno, "setsockopt TIMESTAMPING");
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	struct addrinfo hints, *ai;
+	struct iovec iov[1];
+	unsigned char *buf;
+	struct msghdr msg;
+	char cbuf[1024];
+	int err;
+	int fd;
+	int i;
+
+	cs_parse_args(argc, argv);
+
+	buf = malloc(opt.size);
+	memrnd(buf, opt.size);
+
+	memset(&hints, 0, sizeof(hints));
+	hints.ai_family = opt.sock.family;
+
+	ai = NULL;
+	err = getaddrinfo(opt.host, opt.service, &hints, &ai);
+	if (err) {
+		fprintf(stderr, "Can't resolve address [%s]:%s\n",
+			opt.host, opt.service);
+		err = ERN_SOCK_CREATE;
+		goto err_free_buff;
+	}
+
+	if (ai->ai_family == AF_INET6 && opt.sock.proto == IPPROTO_ICMP)
+		opt.sock.proto = IPPROTO_ICMPV6;
+
+	fd = socket(ai->ai_family, opt.sock.type, opt.sock.proto);
+	if (fd < 0) {
+		fprintf(stderr, "Can't open socket: %s\n", strerror(errno));
+		err = ERN_RESOLVE;
+		goto err_free_info;
+	}
+
+	if (opt.sock.proto == IPPROTO_ICMP) {
+		buf[0] = ICMP_ECHO;
+		buf[1] = 0;
+	} else if (opt.sock.proto == IPPROTO_ICMPV6) {
+		buf[0] = ICMPV6_ECHO_REQUEST;
+		buf[1] = 0;
+	} else if (opt.sock.type == SOCK_RAW) {
+		struct udphdr hdr = { 1, 2, htons(opt.size), 0 };
+		struct sockaddr_in6 *sin6 = (void *)ai->ai_addr;
+
+		memcpy(buf, &hdr, sizeof(hdr));
+		sin6->sin6_port = htons(opt.sock.proto);
+	}
+
+	ca_set_sockopts(fd);
+
+	if (clock_gettime(CLOCK_REALTIME, &time_start_real))
+		error(ERN_GETTIME, errno, "gettime REALTIME");
+	if (clock_gettime(CLOCK_MONOTONIC, &time_start_mono))
+		error(ERN_GETTIME, errno, "gettime MONOTONIC");
+
+	iov[0].iov_base = buf;
+	iov[0].iov_len = opt.size;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_name = ai->ai_addr;
+	msg.msg_namelen = ai->ai_addrlen;
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 1;
+
+	cs_write_cmsg(fd, &msg, cbuf, sizeof(cbuf));
+
+	for (i = 0; i < opt.num_pkt; i++) {
+		err = sendmsg(fd, &msg, opt.msg_more ? MSG_MORE : 0);
+		if (err < 0) {
+			if (!opt.silent_send)
+				fprintf(stderr, "send failed: %s\n", strerror(errno));
+			err = ERN_SEND;
+			goto err_out;
+		} else if (err != (int)opt.size) {
+			fprintf(stderr, "short send\n");
+			err = ERN_SEND_SHORT;
+			goto err_out;
+		}
+		if (opt.msg_more) {
+			err = write(fd, NULL, 0);
+			if (err < 0) {
+				fprintf(stderr, "send more: %s\n", strerror(errno));
+				err = ERN_SEND_MORE;
+				goto err_out;
+			}
+		}
+	}
+	err = ERN_SUCCESS;
+
+	if (opt.ts.ena) {
+		unsigned long seen;
+		int i;
+
+		/* Make sure all timestamps have time to loop back */
+		for (i = 0; i < 40; i++) {
+			seen = cs_read_cmsg(fd, &msg, cbuf, sizeof(cbuf));
+			if (seen & (1 << SCM_TSTAMP_SND))
+				break;
+			usleep(opt.txtime.delay / 20);
+		}
+	}
+
+err_out:
+	close(fd);
+err_free_info:
+	freeaddrinfo(ai);
+err_free_buff:
+	free(buf);
+	return err;
+}
diff --git a/tools/testing/selftests/net/cmsg_so_mark.sh b/tools/testing/selftests/net/cmsg_so_mark.sh
new file mode 100755
index 000000000000..772ad0cc2630
--- /dev/null
+++ b/tools/testing/selftests/net/cmsg_so_mark.sh
@@ -0,0 +1,78 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+IP4=172.16.0.1/24
+TGT4=172.16.0.2
+IP6=2001:db8:1::1/64
+TGT6=2001:db8:1::2
+MARK=1000
+
+cleanup()
+{
+    cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+# Namespaces
+setup_ns NS
+
+ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
+
+# Connectivity
+ip -netns $NS link add type dummy
+ip -netns $NS link set dev dummy0 up
+ip -netns $NS addr add $IP4 dev dummy0
+ip -netns $NS addr add $IP6 dev dummy0
+
+ip -netns $NS rule add fwmark $MARK lookup 300
+ip -6 -netns $NS rule add fwmark $MARK lookup 300
+ip -netns $NS route add prohibit any table 300
+ip -6 -netns $NS route add prohibit any table 300
+
+# Test
+BAD=0
+TOTAL=0
+
+check_result() {
+    ((TOTAL++))
+    if [ $1 -ne $2 ]; then
+	echo "  Case $3 returned $1, expected $2"
+	((BAD++))
+    fi
+}
+
+for ovr in setsock cmsg both; do
+    for i in 4 6; do
+	[ $i == 4 ] && TGT=$TGT4 || TGT=$TGT6
+
+	for p in u i r; do
+	    [ $p == "u" ] && prot=UDP
+	    [ $p == "i" ] && prot=ICMP
+	    [ $p == "r" ] && prot=RAW
+
+	    [ $ovr == "setsock" ] && m="-M"
+	    [ $ovr == "cmsg" ]    && m="-m"
+	    [ $ovr == "both" ]    && m="-M $MARK -m"
+
+	    ip netns exec $NS ./cmsg_sender -$i -p $p $m $((MARK + 1)) $TGT 1234
+	    check_result $? 0 "$prot $ovr - pass"
+
+	    [ $ovr == "diff" ] && m="-M $((MARK + 1)) -m"
+
+	    ip netns exec $NS ./cmsg_sender -$i -p $p $m $MARK -s $TGT 1234
+	    check_result $? 1 "$prot $ovr - rejection"
+	done
+    done
+done
+
+# Summary
+if [ $BAD -ne 0 ]; then
+    echo "FAIL - $BAD/$TOTAL cases failed"
+    exit 1
+else
+    echo "OK"
+    exit 0
+fi
diff --git a/tools/testing/selftests/net/cmsg_so_priority.sh b/tools/testing/selftests/net/cmsg_so_priority.sh
new file mode 100755
index 000000000000..ee07d8653262
--- /dev/null
+++ b/tools/testing/selftests/net/cmsg_so_priority.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+readonly KSFT_SKIP=4
+
+IP4=192.0.2.1/24
+TGT4=192.0.2.2
+TGT4_RAW=192.0.2.3
+IP6=2001:db8::1/64
+TGT6=2001:db8::2
+TGT6_RAW=2001:db8::3
+PORT=1234
+TOTAL_TESTS=0
+FAILED_TESTS=0
+
+if ! command -v jq &> /dev/null; then
+    echo "SKIP cmsg_so_priroity.sh test: jq is not installed." >&2
+    exit "$KSFT_SKIP"
+fi
+
+check_result() {
+    ((TOTAL_TESTS++))
+    if [ "$1" -ne 0 ]; then
+        ((FAILED_TESTS++))
+    fi
+}
+
+cleanup()
+{
+    cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+setup_ns NS
+
+create_filter() {
+    local handle=$1
+    local vlan_prio=$2
+    local ip_type=$3
+    local proto=$4
+    local dst_ip=$5
+    local ip_proto
+
+    if [[ "$proto" == "u" ]]; then
+        ip_proto="udp"
+    elif [[ "$ip_type" == "ipv4" && "$proto" == "i" ]]; then
+        ip_proto="icmp"
+    elif [[ "$ip_type" == "ipv6" && "$proto" == "i" ]]; then
+        ip_proto="icmpv6"
+    fi
+
+    tc -n $NS filter add dev dummy1 \
+        egress pref 1 handle "$handle" proto 802.1q \
+        flower vlan_prio "$vlan_prio" vlan_ethtype "$ip_type" \
+        dst_ip "$dst_ip" ${ip_proto:+ip_proto $ip_proto} \
+        action pass
+}
+
+ip -n $NS link set dev lo up
+ip -n $NS link add name dummy1 up type dummy
+
+ip -n $NS link add link dummy1 name dummy1.10 up type vlan id 10 \
+    egress-qos-map 0:0 1:1 2:2 3:3 4:4 5:5 6:6 7:7
+
+ip -n $NS address add $IP4 dev dummy1.10
+ip -n $NS address add $IP6 dev dummy1.10 nodad
+
+ip netns exec $NS sysctl -wq net.ipv4.ping_group_range='0 2147483647'
+
+ip -n $NS neigh add $TGT4 lladdr 00:11:22:33:44:55 nud permanent \
+    dev dummy1.10
+ip -n $NS neigh add $TGT6 lladdr 00:11:22:33:44:55 nud permanent \
+    dev dummy1.10
+ip -n $NS neigh add $TGT4_RAW lladdr 00:11:22:33:44:66 nud permanent \
+    dev dummy1.10
+ip -n $NS neigh add $TGT6_RAW lladdr 00:11:22:33:44:66 nud permanent \
+    dev dummy1.10
+
+tc -n $NS qdisc add dev dummy1 clsact
+
+FILTER_COUNTER=10
+
+for i in 4 6; do
+    for proto in u i r; do
+        echo "Test IPV$i, prot: $proto"
+        for priority in {0..7}; do
+            if [[ $i == 4 && $proto == "r" ]]; then
+                TGT=$TGT4_RAW
+            elif [[ $i == 6 && $proto == "r" ]]; then
+                TGT=$TGT6_RAW
+            elif [ $i == 4 ]; then
+                TGT=$TGT4
+            else
+                TGT=$TGT6
+            fi
+
+            handle="${FILTER_COUNTER}${priority}"
+
+            create_filter $handle $priority ipv$i $proto $TGT
+
+            pkts=$(tc -n $NS -j -s filter show dev dummy1 egress \
+                | jq ".[] | select(.options.handle == ${handle}) | \
+                .options.actions[0].stats.packets")
+
+            if [[ $pkts == 0 ]]; then
+                check_result 0
+            else
+                echo "prio $priority: expected 0, got $pkts"
+                check_result 1
+            fi
+
+            ip netns exec $NS ./cmsg_sender -$i -Q $priority \
+	            -p $proto $TGT $PORT
+
+            pkts=$(tc -n $NS -j -s filter show dev dummy1 egress \
+                | jq ".[] | select(.options.handle == ${handle}) | \
+                .options.actions[0].stats.packets")
+            if [[ $pkts == 1 ]]; then
+                check_result 0
+            else
+                echo "prio $priority -Q: expected 1, got $pkts"
+                check_result 1
+            fi
+
+            ip netns exec $NS ./cmsg_sender -$i -P $priority \
+	            -p $proto $TGT $PORT
+
+            pkts=$(tc -n $NS -j -s filter show dev dummy1 egress \
+                | jq ".[] | select(.options.handle == ${handle}) | \
+                .options.actions[0].stats.packets")
+            if [[ $pkts == 2 ]]; then
+                check_result 0
+            else
+                echo "prio $priority -P: expected 2, got $pkts"
+                check_result 1
+            fi
+        done
+        FILTER_COUNTER=$((FILTER_COUNTER + 10))
+    done
+done
+
+if [ $FAILED_TESTS -ne 0 ]; then
+    echo "FAIL - $FAILED_TESTS/$TOTAL_TESTS tests failed"
+    exit 1
+else
+    echo "OK - All $TOTAL_TESTS tests passed"
+    exit 0
+fi
diff --git a/tools/testing/selftests/net/cmsg_time.sh b/tools/testing/selftests/net/cmsg_time.sh
new file mode 100755
index 000000000000..478af0aefa97
--- /dev/null
+++ b/tools/testing/selftests/net/cmsg_time.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+IP4=172.16.0.1/24
+TGT4=172.16.0.2
+IP6=2001:db8:1::1/64
+TGT6=2001:db8:1::2
+
+cleanup()
+{
+    cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+# Namespaces
+setup_ns NS
+
+ip netns exec $NS sysctl -w net.ipv4.ping_group_range='0 2147483647' > /dev/null
+
+# Connectivity
+ip -netns $NS link add type dummy
+ip -netns $NS link set dev dummy0 up
+ip -netns $NS addr add $IP4 dev dummy0
+ip -netns $NS addr add $IP6 dev dummy0
+
+# Need FQ for TXTIME
+ip netns exec $NS tc qdisc replace dev dummy0 root fq
+
+# Test
+BAD=0
+TOTAL=0
+
+check_result() {
+    local ret=$1
+    local got=$2
+    local exp=$3
+    local case=$4
+    local xfail=$5
+    local xf=
+    local inc=
+
+    if [ "$xfail" == "xfail" ]; then
+	xf="(XFAIL)"
+	inc=0
+    else
+	inc=1
+    fi
+
+    ((TOTAL++))
+    if [ $ret -ne 0 ]; then
+	echo "  Case $case returned $ret, expected 0 $xf"
+	((BAD+=inc))
+    elif [ "$2" != "$3" ]; then
+	echo "  Case $case returned '$got', expected '$exp' $xf"
+	((BAD+=inc))
+    fi
+}
+
+for i in "-4 $TGT4" "-6 $TGT6"; do
+    for p in u i r; do
+	[ $p == "u" ] && prot=UDPv${i:1:2}
+	[ $p == "i" ] && prot=ICMPv${i:1:2}
+	[ $p == "r" ] && prot=RAWv${i:1:2}
+
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234)
+	check_result $? "$ts" "" "$prot - no options"
+
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t | wc -l)
+	check_result $? "$ts" "2" "$prot - ts cnt"
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
+		 sed -n "s/.*SCHED ts0 [0-9].*/OK/p")
+	check_result $? "$ts" "OK" "$prot - ts0 SCHED"
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t |
+		 sed -n "s/.*SND ts0 [0-9].*/OK/p")
+	check_result $? "$ts" "OK" "$prot - ts0 SND"
+
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
+		 awk '/SND/ { if ($3 > 1000) print "OK"; }')
+	check_result $? "$ts" "OK" "$prot - TXTIME abs"
+
+	[ "$KSFT_MACHINE_SLOW" = yes ] && xfail=xfail
+
+	ts=$(ip netns exec $NS ./cmsg_sender -p $p $i 1234 -t -d 1000 |
+		 awk '/SND/ {snd=$3}
+		      /SCHED/ {sch=$3}
+		      END { if (snd - sch > 500) print "OK";
+			    else print snd, "-", sch, "<", 500; }')
+	check_result $? "$ts" "OK" "$prot - TXTIME rel" $xfail
+    done
+done
+
+# Summary
+if [ $BAD -ne 0 ]; then
+    echo "FAIL - $BAD/$TOTAL cases failed"
+    exit 1
+else
+    echo "OK"
+    exit 0
+fi
diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config
new file mode 100644
index 000000000000..1e1f253118f5
--- /dev/null
+++ b/tools/testing/selftests/net/config
@@ -0,0 +1,130 @@
+CONFIG_AMT=m
+CONFIG_BAREUDP=m
+CONFIG_BONDING=m
+CONFIG_BPF_SYSCALL=y
+CONFIG_BRIDGE=y
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_CAN=m
+CONFIG_CAN_DEV=m
+CONFIG_CAN_VXCAN=m
+CONFIG_CRYPTO_ARIA=y
+CONFIG_CRYPTO_CHACHA20POLY1305=m
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SM4_GENERIC=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_BTF_MODULES=n
+CONFIG_DUMMY=y
+CONFIG_GENEVE=m
+CONFIG_IFB=y
+CONFIG_INET_DIAG=y
+CONFIG_INET_ESP=y
+CONFIG_INET_ESP_OFFLOAD=y
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_IPTABLES_LEGACY=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_MATCH_RPFILTER=m
+CONFIG_IP6_NF_NAT=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_IPTABLES_LEGACY=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_MATCH_RPFILTER=m
+CONFIG_IP_NF_NAT=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_SCTP=m
+CONFIG_IPV6=y
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_ILA=m
+CONFIG_IPV6_IOAM6_LWTUNNEL=y
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_RPL_LWTUNNEL=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPV6_SIT=y
+CONFIG_IPV6_VTI=y
+CONFIG_IPVLAN=m
+CONFIG_KALLSYMS=y
+CONFIG_L2TP=m
+CONFIG_L2TP_ETH=m
+CONFIG_L2TP_IP=m
+CONFIG_L2TP_V3=y
+CONFIG_MACSEC=m
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_MPLS=y
+CONFIG_MPLS_IPTUNNEL=m
+CONFIG_MPLS_ROUTING=m
+CONFIG_MPTCP=y
+CONFIG_NET_ACT_CSUM=m
+CONFIG_NET_ACT_CT=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_TUNNEL_KEY=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_BPF=m
+CONFIG_NET_CLS_FLOWER=m
+CONFIG_NET_CLS_MATCHALL=m
+CONFIG_NET_CLS_U32=m
+CONFIG_NETDEVSIM=m
+CONFIG_NET_DROP_MONITOR=m
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NETFILTER_XTABLES_LEGACY=y
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_NAT=m
+CONFIG_NETFILTER_XT_TARGET_HL=m
+CONFIG_NET_FOU=y
+CONFIG_NET_FOU_IP_TUNNELS=y
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IPIP=y
+CONFIG_NET_IPVTI=y
+CONFIG_NETKIT=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_NS=y
+CONFIG_NET_PKTGEN=m
+CONFIG_NET_SCH_ETF=m
+CONFIG_NET_SCH_FQ=m
+CONFIG_NET_SCH_FQ_CODEL=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_NETEM=y
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_VRF=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_OVS=y
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_NAT=m
+CONFIG_NF_TABLES=m
+CONFIG_NF_TABLES_IPV4=y
+CONFIG_NF_TABLES_IPV6=y
+CONFIG_NFT_COMPAT=m
+CONFIG_NFT_NAT=m
+CONFIG_NUMA=y
+CONFIG_OPENVSWITCH=m
+CONFIG_OPENVSWITCH_GENEVE=m
+CONFIG_OPENVSWITCH_GRE=m
+CONFIG_OPENVSWITCH_VXLAN=m
+CONFIG_PROC_SYSCTL=y
+CONFIG_PSAMPLE=m
+CONFIG_RPS=y
+CONFIG_SYSFS=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TEST_BLACKHOLE_DEV=m
+CONFIG_TEST_BPF=m
+CONFIG_TLS=m
+CONFIG_TRACEPOINTS=y
+CONFIG_TUN=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=y
+CONFIG_VXLAN=m
+CONFIG_XFRM_INTERFACE=m
+CONFIG_XFRM_USER=m
diff --git a/tools/testing/selftests/net/drop_monitor_tests.sh b/tools/testing/selftests/net/drop_monitor_tests.sh
new file mode 100755
index 000000000000..507d0a82f5f0
--- /dev/null
+++ b/tools/testing/selftests/net/drop_monitor_tests.sh
@@ -0,0 +1,216 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking drop monitor functionality.
+source lib.sh
+ret=0
+
+# all tests in this script. Can be overridden with -t option
+TESTS="
+	sw_drops
+	hw_drops
+"
+
+NETDEVSIM_PATH=/sys/bus/netdevsim/
+DEV_ADDR=1337
+DEV=netdevsim${DEV_ADDR}
+DEVLINK_DEV=netdevsim/${DEV}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+	fi
+}
+
+setup()
+{
+	modprobe netdevsim &> /dev/null
+
+	set -e
+	setup_ns NS1
+	$IP link add dummy10 up type dummy
+
+	$NS_EXEC echo "$DEV_ADDR 1" > ${NETDEVSIM_PATH}/new_device
+	udevadm settle
+	local netdev=$($NS_EXEC ls ${NETDEVSIM_PATH}/devices/${DEV}/net/)
+	$IP link set dev $netdev up
+
+	set +e
+}
+
+cleanup()
+{
+	$NS_EXEC echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device
+	cleanup_ns ${NS1}
+}
+
+sw_drops_test()
+{
+	echo
+	echo "Software drops test"
+
+	setup
+
+	local dir=$(mktemp -d)
+
+	$TC qdisc add dev dummy10 clsact
+	$TC filter add dev dummy10 egress pref 1 handle 101 proto ip \
+		flower dst_ip 192.0.2.10 action drop
+
+	$NS_EXEC mausezahn dummy10 -a 00:11:22:33:44:55 -b 00:aa:bb:cc:dd:ee \
+		-A 192.0.2.1 -B 192.0.2.10 -t udp sp=12345,dp=54321 -c 0 -q \
+		-d 100msec &
+	timeout 5 dwdump -o sw -w ${dir}/packets.pcap
+	(( $(tshark -r ${dir}/packets.pcap \
+		-Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) != 0))
+	log_test $? 0 "Capturing active software drops"
+
+	rm ${dir}/packets.pcap
+
+	kill_process %%
+	timeout 5 dwdump -o sw -w ${dir}/packets.pcap
+	(( $(tshark -r ${dir}/packets.pcap \
+		-Y 'ip.dst == 192.0.2.10' 2> /dev/null | wc -l) == 0))
+	log_test $? 0 "Capturing inactive software drops"
+
+	rm -r $dir
+
+	cleanup
+}
+
+hw_drops_test()
+{
+	echo
+	echo "Hardware drops test"
+
+	setup
+
+	local dir=$(mktemp -d)
+
+	$DEVLINK trap set $DEVLINK_DEV trap blackhole_route action trap
+	timeout 5 dwdump -o hw -w ${dir}/packets.pcap
+	(( $(tshark -r ${dir}/packets.pcap \
+		-Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \
+		| wc -l) != 0))
+	log_test $? 0 "Capturing active hardware drops"
+
+	rm ${dir}/packets.pcap
+
+	$DEVLINK trap set $DEVLINK_DEV trap blackhole_route action drop
+	timeout 5 dwdump -o hw -w ${dir}/packets.pcap
+	(( $(tshark -r ${dir}/packets.pcap \
+		-Y 'net_dm.hw_trap_name== blackhole_route' 2> /dev/null \
+		| wc -l) == 0))
+	log_test $? 0 "Capturing inactive hardware drops"
+
+	rm -r $dir
+
+	cleanup
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v devlink)" ]; then
+	echo "SKIP: Could not run test without devlink tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tshark)" ]; then
+	echo "SKIP: Could not run test without tshark tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v dwdump)" ]; then
+	echo "SKIP: Could not run test without dwdump tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v udevadm)" ]; then
+	echo "SKIP: Could not run test without udevadm tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v timeout)" ]; then
+	echo "SKIP: Could not run test without timeout tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit $ksft_skip
+fi
+
+tshark -G fields 2> /dev/null | grep -q net_dm
+if [ $? -ne 0 ]; then
+	echo "SKIP: tshark too old, missing net_dm dissector"
+	exit $ksft_skip
+fi
+
+# create netns first so we can get the namespace name
+setup_ns NS1
+cleanup &> /dev/null
+trap cleanup EXIT
+
+IP="ip -netns ${NS1}"
+TC="tc -netns ${NS1}"
+DEVLINK="devlink -N ${NS1}"
+NS_EXEC="ip netns exec ${NS1}"
+
+for t in $TESTS
+do
+	case $t in
+	sw_drops|sw)			sw_drops_test;;
+	hw_drops|hw)			hw_drops_test;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+	esac
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/epoll_busy_poll.c b/tools/testing/selftests/net/epoll_busy_poll.c
new file mode 100644
index 000000000000..adf8dd0b5e0b
--- /dev/null
+++ b/tools/testing/selftests/net/epoll_busy_poll.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/* Basic per-epoll context busy poll test.
+ *
+ * Only tests the ioctls, but should be expanded to test two connected hosts in
+ * the future
+ */
+
+#define _GNU_SOURCE
+
+#include <error.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/capability.h>
+
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include "kselftest_harness.h"
+
+/* if the headers haven't been updated, we need to define some things */
+#if !defined(EPOLL_IOC_TYPE)
+struct epoll_params {
+	uint32_t busy_poll_usecs;
+	uint16_t busy_poll_budget;
+	uint8_t prefer_busy_poll;
+
+	/* pad the struct to a multiple of 64bits */
+	uint8_t __pad;
+};
+
+#define EPOLL_IOC_TYPE 0x8A
+#define EPIOCSPARAMS _IOW(EPOLL_IOC_TYPE, 0x01, struct epoll_params)
+#define EPIOCGPARAMS _IOR(EPOLL_IOC_TYPE, 0x02, struct epoll_params)
+#endif
+
+FIXTURE(invalid_fd)
+{
+	int invalid_fd;
+	struct epoll_params params;
+};
+
+FIXTURE_SETUP(invalid_fd)
+{
+	int ret;
+
+	ret = socket(AF_UNIX, SOCK_DGRAM, 0);
+	EXPECT_NE(-1, ret)
+		TH_LOG("error creating unix socket");
+
+	self->invalid_fd = ret;
+}
+
+FIXTURE_TEARDOWN(invalid_fd)
+{
+	int ret;
+
+	ret = close(self->invalid_fd);
+	EXPECT_EQ(0, ret);
+}
+
+TEST_F(invalid_fd, test_invalid_fd)
+{
+	int ret;
+
+	ret = ioctl(self->invalid_fd, EPIOCGPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCGPARAMS on invalid epoll FD should error");
+
+	EXPECT_EQ(ENOTTY, errno)
+		TH_LOG("EPIOCGPARAMS on invalid epoll FD should set errno to ENOTTY");
+
+	memset(&self->params, 0, sizeof(struct epoll_params));
+
+	ret = ioctl(self->invalid_fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS on invalid epoll FD should error");
+
+	EXPECT_EQ(ENOTTY, errno)
+		TH_LOG("EPIOCSPARAMS on invalid epoll FD should set errno to ENOTTY");
+}
+
+FIXTURE(epoll_busy_poll)
+{
+	int fd;
+	struct epoll_params params;
+	struct epoll_params *invalid_params;
+	cap_t caps;
+};
+
+FIXTURE_SETUP(epoll_busy_poll)
+{
+	int ret;
+
+	ret = epoll_create1(0);
+	EXPECT_NE(-1, ret)
+		TH_LOG("epoll_create1 failed?");
+
+	self->fd = ret;
+
+	self->caps = cap_get_proc();
+	EXPECT_NE(NULL, self->caps);
+}
+
+FIXTURE_TEARDOWN(epoll_busy_poll)
+{
+	int ret;
+
+	ret = close(self->fd);
+	EXPECT_EQ(0, ret);
+
+	ret = cap_free(self->caps);
+	EXPECT_NE(-1, ret)
+		TH_LOG("unable to free capabilities");
+}
+
+TEST_F(epoll_busy_poll, test_get_params)
+{
+	/* begin by getting the epoll params from the kernel
+	 *
+	 * the default should be default and all fields should be zero'd by the
+	 * kernel, so set params fields to garbage to test this.
+	 */
+	int ret = 0;
+
+	self->params.busy_poll_usecs = 0xff;
+	self->params.busy_poll_budget = 0xff;
+	self->params.prefer_busy_poll = 1;
+	self->params.__pad = 0xf;
+
+	ret = ioctl(self->fd, EPIOCGPARAMS, &self->params);
+	EXPECT_EQ(0, ret)
+		TH_LOG("ioctl EPIOCGPARAMS should succeed");
+
+	EXPECT_EQ(0, self->params.busy_poll_usecs)
+		TH_LOG("EPIOCGPARAMS busy_poll_usecs should have been 0");
+
+	EXPECT_EQ(0, self->params.busy_poll_budget)
+		TH_LOG("EPIOCGPARAMS busy_poll_budget should have been 0");
+
+	EXPECT_EQ(0, self->params.prefer_busy_poll)
+		TH_LOG("EPIOCGPARAMS prefer_busy_poll should have been 0");
+
+	EXPECT_EQ(0, self->params.__pad)
+		TH_LOG("EPIOCGPARAMS __pad should have been 0");
+
+	self->invalid_params = (struct epoll_params *)0xdeadbeef;
+	ret = ioctl(self->fd, EPIOCGPARAMS, self->invalid_params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCGPARAMS should error with invalid params");
+
+	EXPECT_EQ(EFAULT, errno)
+		TH_LOG("EPIOCGPARAMS with invalid params should set errno to EFAULT");
+}
+
+TEST_F(epoll_busy_poll, test_set_invalid)
+{
+	int ret;
+
+	memset(&self->params, 0, sizeof(struct epoll_params));
+
+	self->params.__pad = 1;
+
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS non-zero __pad should error");
+
+	EXPECT_EQ(EINVAL, errno)
+		TH_LOG("EPIOCSPARAMS non-zero __pad errno should be EINVAL");
+
+	self->params.__pad = 0;
+	self->params.busy_poll_usecs = (uint32_t)INT_MAX + 1;
+
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS should error busy_poll_usecs > S32_MAX");
+
+	EXPECT_EQ(EINVAL, errno)
+		TH_LOG("EPIOCSPARAMS busy_poll_usecs > S32_MAX errno should be EINVAL");
+
+	self->params.__pad = 0;
+	self->params.busy_poll_usecs = 32;
+	self->params.prefer_busy_poll = 2;
+
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS should error prefer_busy_poll > 1");
+
+	EXPECT_EQ(EINVAL, errno)
+		TH_LOG("EPIOCSPARAMS prefer_busy_poll > 1 errno should be EINVAL");
+
+	self->params.__pad = 0;
+	self->params.busy_poll_usecs = 32;
+	self->params.prefer_busy_poll = 1;
+
+	/* set budget well above kernel's NAPI_POLL_WEIGHT of 64 */
+	self->params.busy_poll_budget = UINT16_MAX;
+
+	/* test harness should run with CAP_NET_ADMIN, but let's make sure */
+	cap_flag_value_t tmp;
+
+	ret = cap_get_flag(self->caps, CAP_NET_ADMIN, CAP_EFFECTIVE, &tmp);
+	EXPECT_EQ(0, ret)
+		TH_LOG("unable to get CAP_NET_ADMIN cap flag");
+
+	EXPECT_EQ(CAP_SET, tmp)
+		TH_LOG("expecting CAP_NET_ADMIN to be set for the test harness");
+
+	/* at this point we know CAP_NET_ADMIN is available, so setting the
+	 * params with a busy_poll_budget > NAPI_POLL_WEIGHT should succeed
+	 */
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(0, ret)
+		TH_LOG("EPIOCSPARAMS should allow busy_poll_budget > NAPI_POLL_WEIGHT");
+
+	/* remove CAP_NET_ADMIN from our effective set */
+	cap_value_t net_admin[] = { CAP_NET_ADMIN };
+
+	ret = cap_set_flag(self->caps, CAP_EFFECTIVE, 1, net_admin, CAP_CLEAR);
+	EXPECT_EQ(0, ret)
+		TH_LOG("couldn't clear CAP_NET_ADMIN");
+
+	ret = cap_set_proc(self->caps);
+	EXPECT_EQ(0, ret)
+		TH_LOG("cap_set_proc should drop CAP_NET_ADMIN");
+
+	/* this is now expected to fail */
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS should error busy_poll_budget > NAPI_POLL_WEIGHT");
+
+	EXPECT_EQ(EPERM, errno)
+		TH_LOG("EPIOCSPARAMS errno should be EPERM busy_poll_budget > NAPI_POLL_WEIGHT");
+
+	/* restore CAP_NET_ADMIN to our effective set */
+	ret = cap_set_flag(self->caps, CAP_EFFECTIVE, 1, net_admin, CAP_SET);
+	EXPECT_EQ(0, ret)
+		TH_LOG("couldn't restore CAP_NET_ADMIN");
+
+	ret = cap_set_proc(self->caps);
+	EXPECT_EQ(0, ret)
+		TH_LOG("cap_set_proc should set  CAP_NET_ADMIN");
+
+	self->invalid_params = (struct epoll_params *)0xdeadbeef;
+	ret = ioctl(self->fd, EPIOCSPARAMS, self->invalid_params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("EPIOCSPARAMS should error when epoll_params is invalid");
+
+	EXPECT_EQ(EFAULT, errno)
+		TH_LOG("EPIOCSPARAMS should set errno to EFAULT when epoll_params is invalid");
+}
+
+TEST_F(epoll_busy_poll, test_set_and_get_valid)
+{
+	int ret;
+
+	memset(&self->params, 0, sizeof(struct epoll_params));
+
+	self->params.busy_poll_usecs = 25;
+	self->params.busy_poll_budget = 16;
+	self->params.prefer_busy_poll = 1;
+
+	ret = ioctl(self->fd, EPIOCSPARAMS, &self->params);
+
+	EXPECT_EQ(0, ret)
+		TH_LOG("EPIOCSPARAMS with valid params should not error");
+
+	/* check that the kernel returns the same values back */
+
+	memset(&self->params, 0, sizeof(struct epoll_params));
+
+	ret = ioctl(self->fd, EPIOCGPARAMS, &self->params);
+
+	EXPECT_EQ(0, ret)
+		TH_LOG("EPIOCGPARAMS should not error");
+
+	EXPECT_EQ(25, self->params.busy_poll_usecs)
+		TH_LOG("params.busy_poll_usecs incorrect");
+
+	EXPECT_EQ(16, self->params.busy_poll_budget)
+		TH_LOG("params.busy_poll_budget incorrect");
+
+	EXPECT_EQ(1, self->params.prefer_busy_poll)
+		TH_LOG("params.prefer_busy_poll incorrect");
+
+	EXPECT_EQ(0, self->params.__pad)
+		TH_LOG("params.__pad was not 0");
+}
+
+TEST_F(epoll_busy_poll, test_invalid_ioctl)
+{
+	int invalid_ioctl = EPIOCGPARAMS + 10;
+	int ret;
+
+	ret = ioctl(self->fd, invalid_ioctl, &self->params);
+
+	EXPECT_EQ(-1, ret)
+		TH_LOG("invalid ioctl should return error");
+
+	EXPECT_EQ(EINVAL, errno)
+		TH_LOG("invalid ioctl should set errno to EINVAL");
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/fcnal-ipv4.sh b/tools/testing/selftests/net/fcnal-ipv4.sh
new file mode 100755
index 000000000000..82f9c867c3e8
--- /dev/null
+++ b/tools/testing/selftests/net/fcnal-ipv4.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+./fcnal-test.sh -t ipv4
diff --git a/tools/testing/selftests/net/fcnal-ipv6.sh b/tools/testing/selftests/net/fcnal-ipv6.sh
new file mode 100755
index 000000000000..ab1fc7aa3caf
--- /dev/null
+++ b/tools/testing/selftests/net/fcnal-ipv6.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+./fcnal-test.sh -t ipv6
diff --git a/tools/testing/selftests/net/fcnal-other.sh b/tools/testing/selftests/net/fcnal-other.sh
new file mode 100755
index 000000000000..a840cf80b32e
--- /dev/null
+++ b/tools/testing/selftests/net/fcnal-other.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+./fcnal-test.sh -t other
diff --git a/tools/testing/selftests/net/fcnal-test.sh b/tools/testing/selftests/net/fcnal-test.sh
new file mode 100755
index 000000000000..844a580ae74e
--- /dev/null
+++ b/tools/testing/selftests/net/fcnal-test.sh
@@ -0,0 +1,4353 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+#
+# IPv4 and IPv6 functional tests focusing on VRF and routing lookups
+# for various permutations:
+#   1. icmp, tcp, udp and netfilter
+#   2. client, server, no-server
+#   3. global address on interface
+#   4. global address on 'lo'
+#   5. remote and local traffic
+#   6. VRF and non-VRF permutations
+#
+# Setup:
+#                     ns-A     |     ns-B
+# No VRF case:
+#    [ lo ]         [ eth1 ]---|---[ eth1 ]      [ lo ]
+#                                                remote address
+# VRF case:
+#         [ red ]---[ eth1 ]---|---[ eth1 ]      [ lo ]
+#
+# ns-A:
+#     eth1: 172.16.1.1/24, 2001:db8:1::1/64
+#       lo: 127.0.0.1/8, ::1/128
+#           172.16.2.1/32, 2001:db8:2::1/128
+#      red: 127.0.0.1/8, ::1/128
+#           172.16.3.1/32, 2001:db8:3::1/128
+#
+# ns-B:
+#     eth1: 172.16.1.2/24, 2001:db8:1::2/64
+#      lo2: 127.0.0.1/8, ::1/128
+#           172.16.2.2/32, 2001:db8:2::2/128
+#
+# ns-A to ns-C connection - only for VRF and same config
+# as ns-A to ns-B
+#
+# server / client nomenclature relative to ns-A
+
+source lib.sh
+
+PATH=$PWD:$PWD/tools/testing/selftests/net:$PATH
+
+VERBOSE=0
+
+NSA_DEV=eth1
+NSA_DEV2=eth2
+NSB_DEV=eth1
+NSC_DEV=eth2
+VRF=red
+VRF_TABLE=1101
+
+# IPv4 config
+NSA_IP=172.16.1.1
+NSB_IP=172.16.1.2
+VRF_IP=172.16.3.1
+NS_NET=172.16.1.0/24
+
+# IPv6 config
+NSA_IP6=2001:db8:1::1
+NSB_IP6=2001:db8:1::2
+VRF_IP6=2001:db8:3::1
+NS_NET6=2001:db8:1::/120
+
+NSA_LO_IP=172.16.2.1
+NSB_LO_IP=172.16.2.2
+NSA_LO_IP6=2001:db8:2::1
+NSB_LO_IP6=2001:db8:2::2
+
+# non-local addresses for freebind tests
+NL_IP=172.17.1.1
+NL_IP6=2001:db8:4::1
+
+# multicast and broadcast addresses
+MCAST_IP=224.0.0.1
+BCAST_IP=255.255.255.255
+
+MD5_PW=abc123
+MD5_WRONG_PW=abc1234
+
+MCAST=ff02::1
+# set after namespace create
+NSA_LINKIP6=
+NSB_LINKIP6=
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+# Check if FIPS mode is enabled
+if [ -f /proc/sys/crypto/fips_enabled ]; then
+	fips_enabled=`cat /proc/sys/crypto/fips_enabled`
+else
+	fips_enabled=0
+fi
+
+################################################################################
+# utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+	local ans
+
+	[ "${VERBOSE}" = "1" ] && echo
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "TEST: %-70s  [ OK ]\n" "${msg}"
+	else
+		nfail=$((nfail+1))
+		printf "TEST: %-70s  [FAIL]\n" "${msg}"
+		echo "    expected rc $expected; actual rc $rc"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read ans
+			[ "$ans" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read ans
+		[ "$ans" = "q" ] && exit 1
+	fi
+
+	kill_procs
+}
+
+log_test_addr()
+{
+	local addr=$1
+	local rc=$2
+	local expected=$3
+	local msg="$4"
+	local astr
+
+	astr=$(addr2str ${addr})
+	log_test $rc $expected "$msg - ${astr}"
+}
+
+log_section()
+{
+	echo
+	echo "###########################################################################"
+	echo "$*"
+	echo "###########################################################################"
+	echo
+}
+
+log_subsection()
+{
+	echo
+	echo "#################################################################"
+	echo "$*"
+	echo
+}
+
+log_start()
+{
+	# make sure we have no test instances running
+	kill_procs
+
+	if [ "${VERBOSE}" = "1" ]; then
+		echo
+		echo "#######################################################"
+	fi
+}
+
+log_debug()
+{
+	if [ "${VERBOSE}" = "1" ]; then
+		echo
+		echo "$*"
+		echo
+	fi
+}
+
+show_hint()
+{
+	if [ "${VERBOSE}" = "1" ]; then
+		echo "HINT: $*"
+		echo
+	fi
+}
+
+kill_procs()
+{
+	killall nettest ping ping6 >/dev/null 2>&1
+	slowwait 2 sh -c 'test -z "$(pgrep '"'^(nettest|ping|ping6)$'"')"'
+}
+
+set_ping_group()
+{
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: ${NSA_CMD} sysctl -q -w net.ipv4.ping_group_range='0 2147483647'"
+	fi
+
+	${NSA_CMD} sysctl -q -w net.ipv4.ping_group_range='0 2147483647'
+}
+
+do_run_cmd()
+{
+	local cmd="$*"
+	local out
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: ${cmd}"
+	fi
+
+	out=$($cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "$out"
+	fi
+
+	return $rc
+}
+
+run_cmd()
+{
+	do_run_cmd ${NSA_CMD} $*
+}
+
+run_cmd_nsb()
+{
+	do_run_cmd ${NSB_CMD} $*
+}
+
+run_cmd_nsc()
+{
+	do_run_cmd ${NSC_CMD} $*
+}
+
+setup_cmd()
+{
+	local cmd="$*"
+	local rc
+
+	run_cmd ${cmd}
+	rc=$?
+	if [ $rc -ne 0 ]; then
+		# show user the command if not done so already
+		if [ "$VERBOSE" = "0" ]; then
+			echo "setup command: $cmd"
+		fi
+		echo "failed. stopping tests"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue"
+			read a
+		fi
+		exit $rc
+	fi
+}
+
+setup_cmd_nsb()
+{
+	local cmd="$*"
+	local rc
+
+	run_cmd_nsb ${cmd}
+	rc=$?
+	if [ $rc -ne 0 ]; then
+		# show user the command if not done so already
+		if [ "$VERBOSE" = "0" ]; then
+			echo "setup command: $cmd"
+		fi
+		echo "failed. stopping tests"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue"
+			read a
+		fi
+		exit $rc
+	fi
+}
+
+setup_cmd_nsc()
+{
+	local cmd="$*"
+	local rc
+
+	run_cmd_nsc ${cmd}
+	rc=$?
+	if [ $rc -ne 0 ]; then
+		# show user the command if not done so already
+		if [ "$VERBOSE" = "0" ]; then
+			echo "setup command: $cmd"
+		fi
+		echo "failed. stopping tests"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue"
+			read a
+		fi
+		exit $rc
+	fi
+}
+
+# set sysctl values in NS-A
+set_sysctl()
+{
+	echo "SYSCTL: $*"
+	echo
+	run_cmd sysctl -q -w $*
+}
+
+# get sysctl values in NS-A
+get_sysctl()
+{
+	${NSA_CMD} sysctl -n $*
+}
+
+################################################################################
+# Setup for tests
+
+addr2str()
+{
+	case "$1" in
+	127.0.0.1) echo "loopback";;
+	::1) echo "IPv6 loopback";;
+
+	${BCAST_IP}) echo "broadcast";;
+	${MCAST_IP}) echo "multicast";;
+
+	${NSA_IP})	echo "ns-A IP";;
+	${NSA_IP6})	echo "ns-A IPv6";;
+	${NSA_LO_IP})	echo "ns-A loopback IP";;
+	${NSA_LO_IP6})	echo "ns-A loopback IPv6";;
+	${NSA_LINKIP6}|${NSA_LINKIP6}%*) echo "ns-A IPv6 LLA";;
+
+	${NSB_IP})	echo "ns-B IP";;
+	${NSB_IP6})	echo "ns-B IPv6";;
+	${NSB_LO_IP})	echo "ns-B loopback IP";;
+	${NSB_LO_IP6})	echo "ns-B loopback IPv6";;
+	${NSB_LINKIP6}|${NSB_LINKIP6}%*) echo "ns-B IPv6 LLA";;
+
+	${NL_IP})       echo "nonlocal IP";;
+	${NL_IP6})      echo "nonlocal IPv6";;
+
+	${VRF_IP})	echo "VRF IP";;
+	${VRF_IP6})	echo "VRF IPv6";;
+
+	${MCAST}%*)	echo "multicast IP";;
+
+	*) echo "unknown";;
+	esac
+}
+
+get_linklocal()
+{
+	local ns=$1
+	local dev=$2
+	local addr
+
+	addr=$(ip -netns ${ns} -6 -br addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+################################################################################
+# create namespaces and vrf
+
+create_vrf()
+{
+	local ns=$1
+	local vrf=$2
+	local table=$3
+	local addr=$4
+	local addr6=$5
+
+	ip -netns ${ns} link add ${vrf} type vrf table ${table}
+	ip -netns ${ns} link set ${vrf} up
+	ip -netns ${ns} route add vrf ${vrf} unreachable default metric 8192
+	ip -netns ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
+
+	ip -netns ${ns} addr add 127.0.0.1/8 dev ${vrf}
+	ip -netns ${ns} -6 addr add ::1 dev ${vrf} nodad
+	if [ "${addr}" != "-" ]; then
+		ip -netns ${ns} addr add dev ${vrf} ${addr}
+	fi
+	if [ "${addr6}" != "-" ]; then
+		ip -netns ${ns} -6 addr add dev ${vrf} ${addr6}
+	fi
+
+	ip -netns ${ns} ru del pref 0
+	ip -netns ${ns} ru add pref 32765 from all lookup local
+	ip -netns ${ns} -6 ru del pref 0
+	ip -netns ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+create_ns()
+{
+	local ns=$1
+	local addr=$2
+	local addr6=$3
+
+	if [ "${addr}" != "-" ]; then
+		ip -netns ${ns} addr add dev lo ${addr}
+	fi
+	if [ "${addr6}" != "-" ]; then
+		ip -netns ${ns} -6 addr add dev lo ${addr6}
+	fi
+
+	ip -netns ${ns} ro add unreachable default metric 8192
+	ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+	ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+	local ns1=$1
+	local ns1_dev=$2
+	local ns1_addr=$3
+	local ns1_addr6=$4
+	local ns2=$5
+	local ns2_dev=$6
+	local ns2_addr=$7
+	local ns2_addr6=$8
+
+	ip -netns ${ns1} li add ${ns1_dev} type veth peer name tmp
+	ip -netns ${ns1} li set ${ns1_dev} up
+	ip -netns ${ns1} li set tmp netns ${ns2} name ${ns2_dev}
+	ip -netns ${ns2} li set ${ns2_dev} up
+
+	if [ "${ns1_addr}" != "-" ]; then
+		ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr}
+		ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr}
+	fi
+
+	if [ "${ns1_addr6}" != "-" ]; then
+		ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr6}
+		ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr6}
+	fi
+}
+
+cleanup()
+{
+	# explicit cleanups to check those code paths
+	ip netns | grep -q ${NSA}
+	if [ $? -eq 0 ]; then
+		ip -netns ${NSA} link delete ${VRF}
+		ip -netns ${NSA} ro flush table ${VRF_TABLE}
+
+		ip -netns ${NSA} addr flush dev ${NSA_DEV}
+		ip -netns ${NSA} -6 addr flush dev ${NSA_DEV}
+		ip -netns ${NSA} link set dev ${NSA_DEV} down
+		ip -netns ${NSA} link del dev ${NSA_DEV}
+
+		ip netns pids ${NSA} | xargs kill 2>/dev/null
+		cleanup_ns ${NSA}
+	fi
+
+	ip netns pids ${NSB} | xargs kill 2>/dev/null
+	ip netns pids ${NSC} | xargs kill 2>/dev/null
+	cleanup_ns ${NSB} ${NSC}
+}
+
+cleanup_vrf_dup()
+{
+	ip link del ${NSA_DEV2} >/dev/null 2>&1
+	ip netns pids ${NSC} | xargs kill 2>/dev/null
+	ip netns del ${NSC} >/dev/null 2>&1
+}
+
+setup_vrf_dup()
+{
+	# some VRF tests use ns-C which has the same config as
+	# ns-B but for a device NOT in the VRF
+	setup_ns NSC
+	NSC_CMD="ip netns exec ${NSC}"
+	create_ns ${NSC} "-" "-"
+	connect_ns ${NSA} ${NSA_DEV2} ${NSA_IP}/24 ${NSA_IP6}/64 \
+		   ${NSC} ${NSC_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
+}
+
+setup()
+{
+	local with_vrf=${1}
+
+	# make sure we are starting with a clean slate
+	kill_procs
+	cleanup 2>/dev/null
+
+	log_debug "Configuring network namespaces"
+	set -e
+
+	setup_ns NSA NSB
+	NSA_CMD="ip netns exec ${NSA}"
+	NSB_CMD="ip netns exec ${NSB}"
+
+	create_ns ${NSA} ${NSA_LO_IP}/32 ${NSA_LO_IP6}/128
+	create_ns ${NSB} ${NSB_LO_IP}/32 ${NSB_LO_IP6}/128
+	connect_ns ${NSA} ${NSA_DEV} ${NSA_IP}/24 ${NSA_IP6}/64 \
+		   ${NSB} ${NSB_DEV} ${NSB_IP}/24 ${NSB_IP6}/64
+
+	NSA_LINKIP6=$(get_linklocal ${NSA} ${NSA_DEV})
+	NSB_LINKIP6=$(get_linklocal ${NSB} ${NSB_DEV})
+
+	# tell ns-A how to get to remote addresses of ns-B
+	if [ "${with_vrf}" = "yes" ]; then
+		create_vrf ${NSA} ${VRF} ${VRF_TABLE} ${VRF_IP} ${VRF_IP6}
+
+		ip -netns ${NSA} link set dev ${NSA_DEV} vrf ${VRF}
+		ip -netns ${NSA} ro add vrf ${VRF} ${NSB_LO_IP}/32 via ${NSB_IP} dev ${NSA_DEV}
+		ip -netns ${NSA} -6 ro add vrf ${VRF} ${NSB_LO_IP6}/128 via ${NSB_IP6} dev ${NSA_DEV}
+
+		ip -netns ${NSB} ro add ${VRF_IP}/32 via ${NSA_IP} dev ${NSB_DEV}
+		ip -netns ${NSB} -6 ro add ${VRF_IP6}/128 via ${NSA_IP6} dev ${NSB_DEV}
+	else
+		ip -netns ${NSA} ro add ${NSB_LO_IP}/32 via ${NSB_IP} dev ${NSA_DEV}
+		ip -netns ${NSA} ro add ${NSB_LO_IP6}/128 via ${NSB_IP6} dev ${NSA_DEV}
+	fi
+
+
+	# tell ns-B how to get to remote addresses of ns-A
+	ip -netns ${NSB} ro add ${NSA_LO_IP}/32 via ${NSA_IP} dev ${NSB_DEV}
+	ip -netns ${NSB} ro add ${NSA_LO_IP6}/128 via ${NSA_IP6} dev ${NSB_DEV}
+
+	set +e
+
+	sleep 1
+}
+
+setup_lla_only()
+{
+	# make sure we are starting with a clean slate
+	kill_procs
+	cleanup 2>/dev/null
+
+	log_debug "Configuring network namespaces"
+	set -e
+
+	setup_ns NSA NSB NSC
+	NSA_CMD="ip netns exec ${NSA}"
+	NSB_CMD="ip netns exec ${NSB}"
+	NSC_CMD="ip netns exec ${NSC}"
+	create_ns ${NSA} "-" "-"
+	create_ns ${NSB} "-" "-"
+	create_ns ${NSC} "-" "-"
+	connect_ns ${NSA} ${NSA_DEV} "-" "-" \
+		   ${NSB} ${NSB_DEV} "-" "-"
+	connect_ns ${NSA} ${NSA_DEV2} "-" "-" \
+		   ${NSC} ${NSC_DEV}  "-" "-"
+
+	NSA_LINKIP6=$(get_linklocal ${NSA} ${NSA_DEV})
+	NSB_LINKIP6=$(get_linklocal ${NSB} ${NSB_DEV})
+	NSC_LINKIP6=$(get_linklocal ${NSC} ${NSC_DEV})
+
+	create_vrf ${NSA} ${VRF} ${VRF_TABLE} "-" "-"
+	ip -netns ${NSA} link set dev ${NSA_DEV} vrf ${VRF}
+	ip -netns ${NSA} link set dev ${NSA_DEV2} vrf ${VRF}
+
+	set +e
+
+	sleep 1
+}
+
+################################################################################
+# IPv4
+
+ipv4_ping_novrf()
+{
+	local a
+
+	#
+	# out
+	#
+	for a in ${NSB_IP} ${NSB_LO_IP}
+	do
+		log_start
+		run_cmd ping -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping out"
+
+		log_start
+		run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping out, device bind"
+
+		log_start
+		run_cmd ping -c1 -w1 -I ${NSA_LO_IP} ${a}
+		log_test_addr ${a} $? 0 "ping out, address bind"
+	done
+
+	#
+	# out, but don't use gateway if peer is not on link
+	#
+	a=${NSB_IP}
+	log_start
+	run_cmd ping -c 1 -w 1 -r ${a}
+	log_test_addr ${a} $? 0 "ping out (don't route), peer on link"
+
+	a=${NSB_LO_IP}
+	log_start
+	show_hint "Fails since peer is not on link"
+	run_cmd ping -c 1 -w 1 -r ${a}
+	log_test_addr ${a} $? 1 "ping out (don't route), peer not on link"
+
+	#
+	# in
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP}
+	do
+		log_start
+		run_cmd_nsb ping -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping in"
+	done
+
+	#
+	# local traffic
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd ping -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping local"
+	done
+
+	#
+	# local traffic, socket bound to device
+	#
+	# address on device
+	a=${NSA_IP}
+	log_start
+	run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 0 "ping local, device bind"
+
+	# loopback addresses not reachable from device bind
+	# fails in a really weird way though because ipv4 special cases
+	# route lookups with oif set.
+	for a in ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Fails since address on loopback device is out of device scope"
+		run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 1 "ping local, device bind"
+	done
+
+	#
+	# ip rule blocks reachability to remote address
+	#
+	log_start
+	setup_cmd ip rule add pref 32765 from all lookup local
+	setup_cmd ip rule del pref 0 from all lookup local
+	setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
+	setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
+
+	a=${NSB_LO_IP}
+	run_cmd ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+	# NOTE: ipv4 actually allows the lookup to fail and yet still create
+	# a viable rtable if the oif (e.g., bind to device) is set, so this
+	# case succeeds despite the rule
+	# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Response generates ICMP (or arp request is ignored) due to ip rule"
+	run_cmd_nsb ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+	[ "$VERBOSE" = "1" ] && echo
+	setup_cmd ip rule del pref 32765 from all lookup local
+	setup_cmd ip rule add pref 0 from all lookup local
+	setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
+	setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
+
+	#
+	# route blocks reachability to remote address
+	#
+	log_start
+	setup_cmd ip route replace unreachable ${NSB_LO_IP}
+	setup_cmd ip route replace unreachable ${NSB_IP}
+
+	a=${NSB_LO_IP}
+	run_cmd ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, blocked by route"
+
+	# NOTE: ipv4 actually allows the lookup to fail and yet still create
+	# a viable rtable if the oif (e.g., bind to device) is set, so this
+	# case succeeds despite not having a route for the address
+	# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Response is dropped (or arp request is ignored) due to ip route"
+	run_cmd_nsb ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by route"
+
+	#
+	# remove 'remote' routes; fallback to default
+	#
+	log_start
+	setup_cmd ip ro del ${NSB_LO_IP}
+
+	a=${NSB_LO_IP}
+	run_cmd ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, unreachable default route"
+
+	# NOTE: ipv4 actually allows the lookup to fail and yet still create
+	# a viable rtable if the oif (e.g., bind to device) is set, so this
+	# case succeeds despite not having a route for the address
+	# run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+}
+
+ipv4_ping_vrf()
+{
+	local a
+
+	# should default on; does not exist on older kernels
+	set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+
+	#
+	# out
+	#
+	for a in ${NSB_IP} ${NSB_LO_IP}
+	do
+		log_start
+		run_cmd ping -c1 -w1 -I ${VRF} ${a}
+		log_test_addr ${a} $? 0 "ping out, VRF bind"
+
+		log_start
+		run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping out, device bind"
+
+		log_start
+		run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${NSA_IP} ${a}
+		log_test_addr ${a} $? 0 "ping out, vrf device + dev address bind"
+
+		log_start
+		run_cmd ip vrf exec ${VRF} ping -c1 -w1 -I ${VRF_IP} ${a}
+		log_test_addr ${a} $? 0 "ping out, vrf device + vrf address bind"
+	done
+
+	#
+	# in
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd_nsb ping -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping in"
+	done
+
+	#
+	# local traffic, local address
+	#
+	for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Source address should be ${a}"
+		run_cmd ping -c1 -w1 -I ${VRF} ${a}
+		log_test_addr ${a} $? 0 "ping local, VRF bind"
+	done
+
+	#
+	# local traffic, socket bound to device
+	#
+	# address on device
+	a=${NSA_IP}
+	log_start
+	run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 0 "ping local, device bind"
+
+	# vrf device is out of scope
+	for a in ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Fails since address on vrf device is out of device scope"
+		run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 2 "ping local, device bind"
+	done
+
+	#
+	# ip rule blocks address
+	#
+	log_start
+	setup_cmd ip rule add pref 50 to ${NSB_LO_IP} prohibit
+	setup_cmd ip rule add pref 51 from ${NSB_IP} prohibit
+
+	a=${NSB_LO_IP}
+	run_cmd ping -c1 -w1 -I ${VRF} ${a}
+	log_test_addr ${a} $? 2 "ping out, vrf bind, blocked by rule"
+
+	log_start
+	run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Response lost due to ip rule"
+	run_cmd_nsb ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+	[ "$VERBOSE" = "1" ] && echo
+	setup_cmd ip rule del pref 50 to ${NSB_LO_IP} prohibit
+	setup_cmd ip rule del pref 51 from ${NSB_IP} prohibit
+
+	#
+	# remove 'remote' routes; fallback to default
+	#
+	log_start
+	setup_cmd ip ro del vrf ${VRF} ${NSB_LO_IP}
+
+	a=${NSB_LO_IP}
+	run_cmd ping -c1 -w1 -I ${VRF} ${a}
+	log_test_addr ${a} $? 2 "ping out, vrf bind, unreachable route"
+
+	log_start
+	run_cmd ping -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Response lost by unreachable route"
+	run_cmd_nsb ping -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, unreachable route"
+}
+
+ipv4_ping()
+{
+	log_section "IPv4 ping"
+
+	log_subsection "No VRF"
+	setup
+	set_sysctl net.ipv4.raw_l3mdev_accept=0 2>/dev/null
+	ipv4_ping_novrf
+	setup
+	set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+	ipv4_ping_novrf
+	setup
+	set_ping_group
+	ipv4_ping_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv4_ping_vrf
+	setup "yes"
+	set_ping_group
+	ipv4_ping_vrf
+}
+
+################################################################################
+# IPv4 TCP
+
+#
+# MD5 tests without VRF
+#
+ipv4_tcp_md5_novrf()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NSB_LO_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest  -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -c ${NSB_LO_IP} -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
+#
+# MD5 tests with VRF
+#
+ipv4_tcp_md5()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout since server does not have MD5 auth"
+	run_cmd nettest -s -I ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout since server config differs from client"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_LO_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest  -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout since client address is outside of prefix"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -c ${NSB_LO_IP} -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Prefix config, client address not in configured prefix"
+
+	#
+	# duplicate config between default VRF and a VRF
+	#
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest  -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF"
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest  -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NSB_IP} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF with default VRF pw"
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest  -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF"
+
+	log_start
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest  -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} &
+	run_cmd nettest -s -M ${MD5_WRONG_PW} -m ${NS_NET} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF with default VRF pw"
+
+	#
+	# negative tests
+	#
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} -M ${MD5_PW} -m ${NSB_IP}
+	log_test $? 1 "MD5: VRF: Device must be a VRF - single address"
+
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} -M ${MD5_PW} -m ${NS_NET}
+	log_test $? 1 "MD5: VRF: Device must be a VRF - prefix"
+
+	test_ipv4_md5_vrf__vrf_server__no_bind_ifindex
+	test_ipv4_md5_vrf__global_server__bind_ifindex0
+}
+
+test_ipv4_md5_vrf__vrf_server__no_bind_ifindex()
+{
+	log_start
+	show_hint "Simulates applications using VRF without TCP_MD5SIG_FLAG_IFINDEX"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} --no-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: VRF-bound server, unbound key accepts connection"
+
+	log_start
+	show_hint "Binding both the socket and the key is not required but it works"
+	run_cmd nettest -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET} --force-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: VRF-bound server, bound key accepts connection"
+}
+
+test_ipv4_md5_vrf__global_server__bind_ifindex0()
+{
+	# This particular test needs tcp_l3mdev_accept=1 for Global server to accept VRF connections
+	local old_tcp_l3mdev_accept
+	old_tcp_l3mdev_accept=$(get_sysctl net.ipv4.tcp_l3mdev_accept)
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} --force-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Global server, Key bound to ifindex=0 rejects VRF connection"
+
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} --force-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Global server, key bound to ifindex=0 accepts non-VRF connection"
+	log_start
+
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} --no-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Global server, key not bound to ifindex accepts VRF connection"
+
+	log_start
+	run_cmd nettest -s -M ${MD5_PW} -m ${NS_NET} --no-bind-key-ifindex &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -r ${NSA_IP} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Global server, key not bound to ifindex accepts non-VRF connection"
+
+	# restore value
+	set_sysctl net.ipv4.tcp_l3mdev_accept="$old_tcp_l3mdev_accept"
+}
+
+ipv4_tcp_dontroute()
+{
+	local syncookies=$1
+	local nsa_syncookies
+	local nsb_syncookies
+	local a
+
+	#
+	# Link local connection tests (SO_DONTROUTE).
+	# Connections should succeed only when the remote IP address is
+	# on link (doesn't need to be routed through a gateway).
+	#
+
+	nsa_syncookies=$(ip netns exec "${NSA}" sysctl -n net.ipv4.tcp_syncookies)
+	nsb_syncookies=$(ip netns exec "${NSB}" sysctl -n net.ipv4.tcp_syncookies)
+	ip netns exec "${NSA}" sysctl -wq net.ipv4.tcp_syncookies=${syncookies}
+	ip netns exec "${NSB}" sysctl -wq net.ipv4.tcp_syncookies=${syncookies}
+
+	# Test with eth1 address (on link).
+
+	a=${NSB_IP}
+	log_start
+	do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+	log_test_addr ${a} $? 0 "SO_DONTROUTE client, syncookies=${syncookies}"
+
+	a=${NSB_IP}
+	log_start
+	do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -r ${a} --server-dontroute
+	log_test_addr ${a} $? 0 "SO_DONTROUTE server, syncookies=${syncookies}"
+
+	# Test with loopback address (routed).
+	#
+	# The client would use the eth1 address as source IP by default.
+	# Therefore, we need to use the -c option here, to force the use of the
+	# routed (loopback) address as source IP (so that the server will try
+	# to respond to a routed address and not a link local one).
+
+	a=${NSB_LO_IP}
+	log_start
+	show_hint "Should fail 'Network is unreachable' since server is not on link"
+	do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -c "${NSA_LO_IP}" -r ${a} --client-dontroute
+	log_test_addr ${a} $? 1 "SO_DONTROUTE client, syncookies=${syncookies}"
+
+	a=${NSB_LO_IP}
+	log_start
+	show_hint "Should timeout since server cannot respond (client is not on link)"
+	do_run_cmd nettest -B -N "${NSA}" -O "${NSB}" -c "${NSA_LO_IP}" -r ${a} --server-dontroute
+	log_test_addr ${a} $? 2 "SO_DONTROUTE server, syncookies=${syncookies}"
+
+	ip netns exec "${NSB}" sysctl -wq net.ipv4.tcp_syncookies=${nsb_syncookies}
+	ip netns exec "${NSA}" sysctl -wq net.ipv4.tcp_syncookies=${nsa_syncookies}
+}
+
+ipv4_tcp_novrf()
+{
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP}
+	do
+		log_start
+		run_cmd nettest -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${a}
+	log_test_addr ${a} $? 0 "Device server"
+
+	# verify TCP reset sent and received
+	for a in ${NSA_IP} ${NSA_LO_IP}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# client
+	#
+	for a in ${NSB_IP} ${NSB_LO_IP}
+	do
+		log_start
+		run_cmd_nsb nettest -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -r ${a} -0 ${NSA_IP}
+		log_test_addr ${a} $? 0 "Client"
+
+		log_start
+		run_cmd_nsb nettest -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 0 "Client, device bind"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -r ${a}
+		log_test_addr ${a} $? 1 "No server, unbound client"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd nettest -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -r ${a} -0 ${a} -1 ${a}
+		log_test_addr ${a} $? 0 "Global server, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+	for a in ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+		run_cmd nettest -s -I ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -r ${a}
+		log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -0 ${a} -d ${NSA_DEV}
+	log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+	for a in ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+		run_cmd nettest -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "Global server, device client, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest  -d ${NSA_DEV} -r ${a} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, device client, local connection"
+
+	log_start
+	show_hint "Should fail 'Connection refused'"
+	run_cmd nettest -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+	[ "$fips_enabled" = "1" ] || ipv4_tcp_md5_novrf
+
+	ipv4_tcp_dontroute 0
+	ipv4_tcp_dontroute 2
+}
+
+ipv4_tcp_vrf()
+{
+	local a
+
+	# disable global server
+	log_subsection "Global server disabled"
+
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+		run_cmd nettest -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 1 "Global server"
+
+		log_start
+		run_cmd nettest -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+
+		log_start
+		run_cmd nettest -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 0 "Device server"
+
+		# verify TCP reset received
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	# local address tests
+	# (${VRF_IP} and 127.0.0.1 both timeout)
+	a=${NSA_IP}
+	log_start
+	show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+	run_cmd nettest -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -d ${NSA_DEV}
+	log_test_addr ${a} $? 1 "Global server, local connection"
+
+	# run MD5 tests
+	if [ "$fips_enabled" = "0" ]; then
+		setup_vrf_dup
+		ipv4_tcp_md5
+		cleanup_vrf_dup
+	fi
+
+	#
+	# enable VRF global server
+	#
+	log_subsection "VRF Global server enabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		show_hint "client socket should be bound to VRF"
+		run_cmd nettest -s -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+
+		log_start
+		show_hint "client socket should be bound to VRF"
+		run_cmd nettest -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+
+		# verify TCP reset received
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	a=${NSA_IP}
+	log_start
+	show_hint "client socket should be bound to device"
+	run_cmd nettest -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -r ${a}
+	log_test_addr ${a} $? 0 "Device server"
+
+	# local address tests
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since client is not bound to VRF"
+		run_cmd nettest -s -I ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -r ${a}
+		log_test_addr ${a} $? 1 "Global server, local connection"
+	done
+
+	#
+	# client
+	#
+	for a in ${NSB_IP} ${NSB_LO_IP}
+	do
+		log_start
+		run_cmd_nsb nettest -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -r ${a} -d ${VRF}
+		log_test_addr ${a} $? 0 "Client, VRF bind"
+
+		log_start
+		run_cmd_nsb nettest -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 0 "Client, device bind"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -r ${a} -d ${VRF}
+		log_test_addr ${a} $? 1 "No server, VRF client"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd nettest -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -r ${a} -d ${VRF} -0 ${a}
+		log_test_addr ${a} $? 0 "VRF server, VRF client, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -I ${VRF} -3 ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -d ${NSA_DEV} -0 ${a}
+	log_test_addr ${a} $? 0 "VRF server, device client, local connection"
+
+	log_start
+	show_hint "Should fail 'No route to host' since client is out of VRF scope"
+	run_cmd nettest -s -I ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a}
+	log_test_addr ${a} $? 1 "VRF server, unbound client, local connection"
+
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -d ${VRF} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, VRF client, local connection"
+
+	log_start
+	run_cmd nettest -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -r ${a} -d ${NSA_DEV} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, device client, local connection"
+}
+
+ipv4_tcp()
+{
+	log_section "IPv4/TCP"
+	log_subsection "No VRF"
+	setup
+
+	# tcp_l3mdev_accept should have no affect without VRF;
+	# run tests with it enabled and disabled to verify
+	log_subsection "tcp_l3mdev_accept disabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+	ipv4_tcp_novrf
+	log_subsection "tcp_l3mdev_accept enabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+	ipv4_tcp_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv4_tcp_vrf
+}
+
+################################################################################
+# IPv4 UDP
+
+ipv4_udp_novrf()
+{
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP}
+	do
+		log_start
+		run_cmd nettest -D -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd_nsb nettest -D -r ${a}
+	log_test_addr ${a} $? 0 "Device server"
+
+	#
+	# client
+	#
+	for a in ${NSB_IP} ${NSB_LO_IP}
+	do
+		log_start
+		run_cmd_nsb nettest -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -D -r ${a} -0 ${NSA_IP}
+		log_test_addr ${a} $? 0 "Client"
+
+		log_start
+		run_cmd_nsb nettest -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -0 ${NSA_IP}
+		log_test_addr ${a} $? 0 "Client, device bind"
+
+		log_start
+		run_cmd_nsb nettest -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -C -0 ${NSA_IP}
+		log_test_addr ${a} $? 0 "Client, device send via cmsg"
+
+		log_start
+		run_cmd_nsb nettest -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP}
+		log_test_addr ${a} $? 0 "Client, device bind via IP_UNICAST_IF"
+
+		log_start
+		run_cmd_nsb nettest -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP} -U
+		log_test_addr ${a} $? 0 "Client, device bind via IP_UNICAST_IF, with connect()"
+
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "No server, unbound client"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a} -0 ${a} -1 ${a}
+		log_test_addr ${a} $? 0 "Global server, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -r ${a}
+	log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+	for a in ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since address is out of device scope"
+		run_cmd nettest -s -D -I ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+	log_start
+	run_cmd nettest -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -C -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device send via cmsg, local connection"
+
+	log_start
+	run_cmd nettest -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -S -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device client via IP_UNICAST_IF, local connection"
+
+	log_start
+	run_cmd nettest -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -S -r ${a} -U
+	log_test_addr ${a} $? 0 "Global server, device client via IP_UNICAST_IF, local connection, with connect()"
+
+
+	# IPv4 with device bind has really weird behavior - it overrides the
+	# fib lookup, generates an rtable and tries to send the packet. This
+	# causes failures for local traffic at different places
+	for a in ${NSA_LO_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Should fail since addresses on loopback are out of device scope"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 2 "Global server, device client, local connection"
+
+		log_start
+		show_hint "Should fail since addresses on loopback are out of device scope"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -C
+		log_test_addr ${a} $? 1 "Global server, device send via cmsg, local connection"
+
+		log_start
+		show_hint "Should fail since addresses on loopback are out of device scope"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S
+		log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection"
+
+		log_start
+		show_hint "Should fail since addresses on loopback are out of device scope"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -r ${a} -d ${NSA_DEV} -S -U
+		log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection, with connect()"
+
+
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -D -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+	log_start
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 2 "No server, device client, local conn"
+
+	#
+	# Link local connection tests (SO_DONTROUTE).
+	# Connections should succeed only when the remote IP address is
+	# on link (doesn't need to be routed through a gateway).
+	#
+
+	a=${NSB_IP}
+	log_start
+	do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+	log_test_addr ${a} $? 0 "SO_DONTROUTE client"
+
+	a=${NSB_LO_IP}
+	log_start
+	show_hint "Should fail 'Network is unreachable' since server is not on link"
+	do_run_cmd nettest -B -D -N "${NSA}" -O "${NSB}" -r ${a} --client-dontroute
+	log_test_addr ${a} $? 1 "SO_DONTROUTE client"
+}
+
+ipv4_udp_vrf()
+{
+	local a
+
+	# disable global server
+	log_subsection "Global server disabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=0
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		show_hint "Fails because ingress is in a VRF and global server is disabled"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "Global server"
+
+		log_start
+		run_cmd nettest -D -I ${VRF} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+
+		log_start
+		run_cmd nettest -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "Enslaved device server"
+
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+
+		log_start
+		show_hint "Should fail 'Connection refused' since global server is out of scope"
+		run_cmd nettest -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 1 "Global server, VRF client, local connection"
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -D -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, enslaved device client, local connection"
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+	# enable global server
+	log_subsection "Global server enabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=1
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest -D -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+
+		log_start
+		run_cmd nettest -D -I ${VRF} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+
+		log_start
+		run_cmd nettest -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 0 "Enslaved device server"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd_nsb nettest -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# client tests
+	#
+	log_start
+	run_cmd_nsb nettest -D -s &
+	wait_local_port_listen ${NSB} 12345 udp
+	run_cmd nettest -d ${VRF} -D -r ${NSB_IP} -1 ${NSA_IP}
+	log_test $? 0 "VRF client"
+
+	log_start
+	run_cmd_nsb nettest -D -s &
+	wait_local_port_listen ${NSB} 12345 udp
+	run_cmd nettest -d ${NSA_DEV} -D -r ${NSB_IP} -1 ${NSA_IP}
+	log_test $? 0 "Enslaved device client"
+
+	# negative test - should fail
+	log_start
+	show_hint "Should fail 'Connection refused'"
+	run_cmd nettest -D -d ${VRF} -r ${NSB_IP}
+	log_test $? 1 "No server, VRF client"
+
+	log_start
+	show_hint "Should fail 'Connection refused'"
+	run_cmd nettest -D -d ${NSA_DEV} -r ${NSB_IP}
+	log_test $? 1 "No server, enslaved device client"
+
+	#
+	# local address tests
+	#
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -D -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+	for a in ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd nettest -D -s -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+	done
+
+	for a in ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		run_cmd nettest -s -D -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+	done
+
+	# negative test - should fail
+	# verifies ECONNREFUSED
+	for a in ${NSA_IP} ${VRF_IP} 127.0.0.1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 1 "No server, VRF client, local conn"
+	done
+}
+
+ipv4_udp()
+{
+	log_section "IPv4/UDP"
+	log_subsection "No VRF"
+
+	setup
+
+	# udp_l3mdev_accept should have no affect without VRF;
+	# run tests with it enabled and disabled to verify
+	log_subsection "udp_l3mdev_accept disabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=0
+	ipv4_udp_novrf
+	log_subsection "udp_l3mdev_accept enabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=1
+	ipv4_udp_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv4_udp_vrf
+}
+
+################################################################################
+# IPv4 address bind
+#
+# verifies ability or inability to bind to an address / device
+
+ipv4_addr_bind_novrf()
+{
+	#
+	# raw socket
+	#
+	for a in ${NSA_IP} ${NSA_LO_IP}
+	do
+		log_start
+		run_cmd nettest -s -R -P icmp -l ${a} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address"
+
+		log_start
+		run_cmd nettest -s -R -P icmp -l ${a} -I ${NSA_DEV} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+	done
+
+	#
+	# tests for nonlocal bind
+	#
+	a=${NL_IP}
+	log_start
+	run_cmd nettest -s -R -f -l ${a} -b
+	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address"
+
+	log_start
+	run_cmd nettest -s -f -l ${a} -b
+	log_test_addr ${a} $? 0 "TCP socket bind to nonlocal address"
+
+	log_start
+	run_cmd nettest -s -D -P icmp -f -l ${a} -b
+	log_test_addr ${a} $? 0 "ICMP socket bind to nonlocal address"
+
+	#
+	# check that ICMP sockets cannot bind to broadcast and multicast addresses
+	#
+	a=${BCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to broadcast address"
+
+	a=${MCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to multicast address"
+
+	#
+	# tcp sockets
+	#
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest -c ${a} -r ${NSB_IP} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+	log_start
+	run_cmd nettest -c ${a} -r ${NSB_IP} -d ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+
+	# Sadly, the kernel allows binding a socket to a device and then
+	# binding to an address not on the device. The only restriction
+	# is that the address is valid in the L3 domain. So this test
+	# passes when it really should not
+	#a=${NSA_LO_IP}
+	#log_start
+	#show_hint "Should fail with 'Cannot assign requested address'"
+	#run_cmd nettest -s -l ${a} -I ${NSA_DEV} -t1 -b
+	#log_test_addr ${a} $? 1 "TCP socket bind to out of scope local address"
+}
+
+ipv4_addr_bind_vrf()
+{
+	#
+	# raw socket
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		show_hint "Socket not bound to VRF, but address is in VRF"
+		run_cmd nettest -s -R -P icmp -l ${a} -b
+		log_test_addr ${a} $? 1 "Raw socket bind to local address"
+
+		log_start
+		run_cmd nettest -s -R -P icmp -l ${a} -I ${NSA_DEV} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+		log_start
+		run_cmd nettest -s -R -P icmp -l ${a} -I ${VRF} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after VRF bind"
+	done
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Address on loopback is out of VRF scope"
+	run_cmd nettest -s -R -P icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "Raw socket bind to out of scope address after VRF bind"
+
+	#
+	# tests for nonlocal bind
+	#
+	a=${NL_IP}
+	log_start
+	run_cmd nettest -s -R -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after VRF bind"
+
+	log_start
+	run_cmd nettest -s -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "TCP socket bind to nonlocal address after VRF bind"
+
+	log_start
+	run_cmd nettest -s -D -P icmp -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "ICMP socket bind to nonlocal address after VRF bind"
+
+	#
+	# check that ICMP sockets cannot bind to broadcast and multicast addresses
+	#
+	a=${BCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to broadcast address after VRF bind"
+
+	a=${MCAST_IP}
+	log_start
+	run_cmd nettest -s -D -P icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "ICMP socket bind to multicast address after VRF bind"
+
+	#
+	# tcp sockets
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest -s -l ${a} -I ${VRF} -t1 -b
+		log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+		log_start
+		run_cmd nettest -s -l ${a} -I ${NSA_DEV} -t1 -b
+		log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+	done
+
+	a=${NSA_LO_IP}
+	log_start
+	show_hint "Address on loopback out of scope for VRF"
+	run_cmd nettest -s -l ${a} -I ${VRF} -t1 -b
+	log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for VRF"
+
+	log_start
+	show_hint "Address on loopback out of scope for device in VRF"
+	run_cmd nettest -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for device bind"
+}
+
+ipv4_addr_bind()
+{
+	log_section "IPv4 address binds"
+
+	log_subsection "No VRF"
+	setup
+	set_ping_group
+	ipv4_addr_bind_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	set_ping_group
+	ipv4_addr_bind_vrf
+}
+
+################################################################################
+# IPv4 runtime tests
+
+ipv4_rt()
+{
+	local desc="$1"
+	local varg="$2"
+	local with_vrf="yes"
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest ${varg} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${varg} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, global server"
+
+		setup ${with_vrf}
+	done
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest ${varg} -s -I ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${varg} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, VRF server"
+
+		setup ${with_vrf}
+	done
+
+	a=${NSA_IP}
+	log_start
+	run_cmd nettest ${varg} -s -I ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest ${varg} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, enslaved device server"
+
+	setup ${with_vrf}
+
+	#
+	# client test
+	#
+	log_start
+	run_cmd_nsb nettest ${varg} -s &
+	wait_local_port_listen ${NSB} 12345 tcp
+	run_cmd nettest ${varg} -d ${VRF} -r ${NSB_IP} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, VRF client"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd_nsb nettest ${varg} -s &
+	wait_local_port_listen ${NSB} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${NSB_IP} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, enslaved device client"
+
+	setup ${with_vrf}
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest ${varg} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, global server, VRF client, local"
+
+		setup ${with_vrf}
+	done
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest ${varg} -I ${VRF} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, VRF server and client, local"
+
+		setup ${with_vrf}
+	done
+
+	a=${NSA_IP}
+	log_start
+
+	run_cmd nettest ${varg} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, global server, enslaved device client, local"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd nettest ${varg} -I ${VRF} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, VRF server, enslaved device client, local"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd nettest ${varg} -I ${NSA_DEV} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, enslaved device server and client, local"
+}
+
+ipv4_ping_rt()
+{
+	local with_vrf="yes"
+	local a
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd_nsb ping -f ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "Device delete with active traffic - ping in"
+
+		setup ${with_vrf}
+	done
+
+	a=${NSB_IP}
+	log_start
+	run_cmd ping -f -I ${VRF} ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "Device delete with active traffic - ping out"
+}
+
+ipv4_runtime()
+{
+	log_section "Run time tests - ipv4"
+
+	setup "yes"
+	ipv4_ping_rt
+
+	setup "yes"
+	ipv4_rt "TCP active socket"  "-n -1"
+
+	setup "yes"
+	ipv4_rt "TCP passive socket" "-i"
+}
+
+################################################################################
+# IPv6
+
+ipv6_ping_novrf()
+{
+	local a
+
+	# should not have an impact, but make a known state
+	set_sysctl net.ipv4.raw_l3mdev_accept=0 2>/dev/null
+
+	#
+	# out
+	#
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping out"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping out, device bind"
+
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_LO_IP6} ${a}
+		log_test_addr ${a} $? 0 "ping out, loopback address bind"
+	done
+
+	#
+	# in
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV} ${MCAST}%${NSB_DEV}
+	do
+		log_start
+		run_cmd_nsb ${ping6} -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping in"
+	done
+
+	#
+	# local traffic, local address
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ::1 ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping local, no bind"
+	done
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping local, device bind"
+	done
+
+	for a in ${NSA_LO_IP6} ::1
+	do
+		log_start
+		show_hint "Fails since address on loopback is out of device scope"
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 2 "ping local, device bind"
+	done
+
+	#
+	# ip rule blocks address
+	#
+	log_start
+	setup_cmd ip -6 rule add pref 32765 from all lookup local
+	setup_cmd ip -6 rule del pref 0 from all lookup local
+	setup_cmd ip -6 rule add pref 50 to ${NSB_LO_IP6} prohibit
+	setup_cmd ip -6 rule add pref 51 from ${NSB_IP6} prohibit
+
+	a=${NSB_LO_IP6}
+	run_cmd ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+	log_start
+	run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Response lost due to ip rule"
+	run_cmd_nsb ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+	setup_cmd ip -6 rule add pref 0 from all lookup local
+	setup_cmd ip -6 rule del pref 32765 from all lookup local
+	setup_cmd ip -6 rule del pref 50 to ${NSB_LO_IP6} prohibit
+	setup_cmd ip -6 rule del pref 51 from ${NSB_IP6} prohibit
+
+	#
+	# route blocks reachability to remote address
+	#
+	log_start
+	setup_cmd ip -6 route del ${NSB_LO_IP6}
+	setup_cmd ip -6 route add unreachable ${NSB_LO_IP6} metric 10
+	setup_cmd ip -6 route add unreachable ${NSB_IP6} metric 10
+
+	a=${NSB_LO_IP6}
+	run_cmd ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, blocked by route"
+
+	log_start
+	run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, blocked by route"
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Response lost due to ip route"
+	run_cmd_nsb ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by route"
+
+
+	#
+	# remove 'remote' routes; fallback to default
+	#
+	log_start
+	setup_cmd ip -6 ro del unreachable ${NSB_LO_IP6}
+	setup_cmd ip -6 ro del unreachable ${NSB_IP6}
+
+	a=${NSB_LO_IP6}
+	run_cmd ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, unreachable route"
+
+	log_start
+	run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+}
+
+ipv6_ping_vrf()
+{
+	local a
+
+	# should default on; does not exist on older kernels
+	set_sysctl net.ipv4.raw_l3mdev_accept=1 2>/dev/null
+
+	#
+	# out
+	#
+	for a in ${NSB_IP6} ${NSB_LO_IP6}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${VRF} ${a}
+		log_test_addr ${a} $? 0 "ping out, VRF bind"
+	done
+
+	for a in ${NSB_LINKIP6}%${VRF} ${MCAST}%${VRF}
+	do
+		log_start
+		show_hint "Fails since VRF device does not support linklocal or multicast"
+		run_cmd ${ping6} -c1 -w1 ${a}
+		log_test_addr ${a} $? 1 "ping out, VRF bind"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping out, device bind"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ip vrf exec ${VRF} ${ping6} -c1 -w1 -I ${VRF_IP6} ${a}
+		log_test_addr ${a} $? 0 "ping out, vrf device+address bind"
+	done
+
+	#
+	# in
+	#
+	for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV} ${MCAST}%${NSB_DEV}
+	do
+		log_start
+		run_cmd_nsb ${ping6} -c1 -w1 ${a}
+		log_test_addr ${a} $? 0 "ping in"
+	done
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Fails since loopback address is out of VRF scope"
+	run_cmd_nsb ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in"
+
+	#
+	# local traffic, local address
+	#
+	for a in ${NSA_IP6} ${VRF_IP6} ::1
+	do
+		log_start
+		show_hint "Source address should be ${a}"
+		run_cmd ${ping6} -c1 -w1 -I ${VRF} ${a}
+		log_test_addr ${a} $? 0 "ping local, VRF bind"
+	done
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSA_DEV} ${MCAST}%${NSA_DEV}
+	do
+		log_start
+		run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+		log_test_addr ${a} $? 0 "ping local, device bind"
+	done
+
+	# LLA to GUA - remove ipv6 global addresses from ns-B
+	setup_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+	setup_cmd_nsb ip -6 addr del ${NSB_LO_IP6}/128 dev lo
+	setup_cmd_nsb ip -6 ro add ${NSA_IP6}/128 via ${NSA_LINKIP6} dev ${NSB_DEV}
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+		log_test_addr ${a} $? 0 "ping in, LLA to GUA"
+	done
+
+	setup_cmd_nsb ip -6 ro del ${NSA_IP6}/128 via ${NSA_LINKIP6} dev ${NSB_DEV}
+	setup_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV}
+	setup_cmd_nsb ip -6 addr add ${NSB_LO_IP6}/128 dev lo
+
+	#
+	# ip rule blocks address
+	#
+	log_start
+	setup_cmd ip -6 rule add pref 50 to ${NSB_LO_IP6} prohibit
+	setup_cmd ip -6 rule add pref 51 from ${NSB_IP6} prohibit
+
+	a=${NSB_LO_IP6}
+	run_cmd ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, blocked by rule"
+
+	log_start
+	run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, blocked by rule"
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Response lost due to ip rule"
+	run_cmd_nsb ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 1 "ping in, blocked by rule"
+
+	log_start
+	setup_cmd ip -6 rule del pref 50 to ${NSB_LO_IP6} prohibit
+	setup_cmd ip -6 rule del pref 51 from ${NSB_IP6} prohibit
+
+	#
+	# remove 'remote' routes; fallback to default
+	#
+	log_start
+	setup_cmd ip -6 ro del ${NSB_LO_IP6} vrf ${VRF}
+
+	a=${NSB_LO_IP6}
+	run_cmd ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping out, unreachable route"
+
+	log_start
+	run_cmd ${ping6} -c1 -w1 -I ${NSA_DEV} ${a}
+	log_test_addr ${a} $? 2 "ping out, device bind, unreachable route"
+
+	ip -netns ${NSB} -6 ro del ${NSA_LO_IP6}
+	a=${NSA_LO_IP6}
+	log_start
+	run_cmd_nsb ${ping6} -c1 -w1 ${a}
+	log_test_addr ${a} $? 2 "ping in, unreachable route"
+}
+
+ipv6_ping()
+{
+	log_section "IPv6 ping"
+
+	log_subsection "No VRF"
+	setup
+	ipv6_ping_novrf
+	setup
+	set_ping_group
+	ipv6_ping_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv6_ping_vrf
+	setup "yes"
+	set_ping_group
+	ipv6_ping_vrf
+}
+
+################################################################################
+# IPv6 TCP
+
+#
+# MD5 tests without VRF
+#
+ipv6_tcp_md5_novrf()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NSB_LO_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout due to MD5 mismatch"
+	run_cmd nettest -6 -s -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -c ${NSB_LO_IP6} -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: Prefix config, client address not in configured prefix"
+}
+
+#
+# MD5 tests with VRF
+#
+ipv6_tcp_md5()
+{
+	#
+	# single address
+	#
+
+	# basic use case
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Single address config"
+
+	# client sends MD5, server not configured
+	log_start
+	show_hint "Should timeout since server does not have MD5 auth"
+	run_cmd nettest -6 -s -I ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Server no config, client uses password"
+
+	# wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Client uses wrong password"
+
+	# client from different address
+	log_start
+	show_hint "Should timeout since server config differs from client"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_LO_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Client address does not match address configured with password"
+
+	#
+	# MD5 extension - prefix length
+	#
+
+	# client in prefix
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Prefix config"
+
+	# client in prefix, wrong password
+	log_start
+	show_hint "Should timeout since client uses wrong password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Prefix config, client uses wrong password"
+
+	# client outside of prefix
+	log_start
+	show_hint "Should timeout since client address is outside of prefix"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -c ${NSB_LO_IP6} -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Prefix config, client address not in configured prefix"
+
+	#
+	# duplicate config between default VRF and a VRF
+	#
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 0 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in default VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NSB_IP6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NSB_IP6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Single address config in default VRF and VRF, conn in VRF with default VRF pw"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 0 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF"
+
+	log_start
+	show_hint "Should timeout since client in default VRF uses VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsc nettest -6 -r ${NSA_IP6} -X ${MD5_PW}
+	log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in default VRF with VRF pw"
+
+	log_start
+	show_hint "Should timeout since client in VRF uses default VRF password"
+	run_cmd nettest -6 -s -I ${VRF} -M ${MD5_PW} -m ${NS_NET6} &
+	run_cmd nettest -6 -s -M ${MD5_WRONG_PW} -m ${NS_NET6} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${NSA_IP6} -X ${MD5_WRONG_PW}
+	log_test $? 2 "MD5: VRF: Prefix config in default VRF and VRF, conn in VRF with default VRF pw"
+
+	#
+	# negative tests
+	#
+	log_start
+	run_cmd nettest -6 -s -I ${NSA_DEV} -M ${MD5_PW} -m ${NSB_IP6}
+	log_test $? 1 "MD5: VRF: Device must be a VRF - single address"
+
+	log_start
+	run_cmd nettest -6 -s -I ${NSA_DEV} -M ${MD5_PW} -m ${NS_NET6}
+	log_test $? 1 "MD5: VRF: Device must be a VRF - prefix"
+
+}
+
+ipv6_tcp_novrf()
+{
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		run_cmd nettest -6 -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+	done
+
+	# verify TCP reset received
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# client
+	#
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Client"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 0 "Client, device bind"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ::1
+	do
+		log_start
+		run_cmd nettest -6 -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Global server, local connection"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+	for a in ${NSA_LO_IP6} ::1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -s -I ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "Device server, unbound client, local connection"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+	log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+	for a in ${NSA_LO_IP6} ::1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "Global server, device client, local connection"
+	done
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6  -d ${NSA_DEV} -r ${a}
+		log_test_addr ${a} $? 0 "Device server, device client, local conn"
+	done
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -d ${NSA_DEV} -r ${a}
+		log_test_addr ${a} $? 1 "No server, device client, local conn"
+	done
+
+	[ "$fips_enabled" = "1" ] || ipv6_tcp_md5_novrf
+}
+
+ipv6_tcp_vrf()
+{
+	local a
+
+	# disable global server
+	log_subsection "Global server disabled"
+
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+		run_cmd nettest -6 -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "Global server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+	done
+
+	# link local is always bound to ingress device
+	a=${NSA_LINKIP6}%${NSB_DEV}
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${a}
+	log_test_addr ${a} $? 0 "VRF server"
+
+	for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Device server"
+	done
+
+	# verify TCP reset received
+	for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	# local address tests
+	a=${NSA_IP6}
+	log_start
+	show_hint "Should fail 'Connection refused' since global server with VRF is disabled"
+	run_cmd nettest -6 -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+	log_test_addr ${a} $? 1 "Global server, local connection"
+
+	# run MD5 tests
+	if [ "$fips_enabled" = "0" ]; then
+		setup_vrf_dup
+		ipv6_tcp_md5
+		cleanup_vrf_dup
+	fi
+
+	#
+	# enable VRF global server
+	#
+	log_subsection "VRF Global server enabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+	done
+
+	# For LLA, child socket is bound to device
+	a=${NSA_LINKIP6}%${NSB_DEV}
+	log_start
+	run_cmd nettest -6 -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${a}
+	log_test_addr ${a} $? 0 "Global server"
+
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd_nsb nettest -6 -r ${a}
+	log_test_addr ${a} $? 0 "VRF server"
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 0 "Device server"
+	done
+
+	# verify TCP reset received
+	for a in ${NSA_IP6} ${VRF_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	# local address tests
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		show_hint "Fails 'Connection refused' since client is not in VRF"
+		run_cmd nettest -6 -s -I ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "Global server, local connection"
+	done
+
+
+	#
+	# client
+	#
+	for a in ${NSB_IP6} ${NSB_LO_IP6}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${VRF}
+		log_test_addr ${a} $? 0 "Client, VRF bind"
+	done
+
+	a=${NSB_LINKIP6}
+	log_start
+	show_hint "Fails since VRF device does not allow linklocal addresses"
+	run_cmd_nsb nettest -6 -s &
+	wait_local_port_listen ${NSB} 12345 tcp
+	run_cmd nettest -6 -r ${a} -d ${VRF}
+	log_test_addr ${a} $? 1 "Client, VRF bind"
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -s &
+		wait_local_port_listen ${NSB} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 0 "Client, device bind"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -r ${a} -d ${VRF}
+		log_test_addr ${a} $? 1 "No server, VRF client"
+	done
+
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6} ::1
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${VRF} -3 ${VRF} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${VRF} -0 ${a}
+		log_test_addr ${a} $? 0 "VRF server, VRF client, local connection"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -I ${VRF} -3 ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+	log_test_addr ${a} $? 0 "VRF server, device client, local connection"
+
+	a=${NSA_IP6}
+	log_start
+	show_hint "Should fail since unbound client is out of VRF scope"
+	run_cmd nettest -6 -s -I ${VRF} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a}
+	log_test_addr ${a} $? 1 "VRF server, unbound client, local connection"
+
+	log_start
+	run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest -6 -r ${a} -d ${VRF} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, VRF client, local connection"
+
+	for a in ${NSA_IP6} ${NSA_LINKIP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest -6 -r ${a} -d ${NSA_DEV} -0 ${a}
+		log_test_addr ${a} $? 0 "Device server, device client, local connection"
+	done
+}
+
+ipv6_tcp()
+{
+	log_section "IPv6/TCP"
+	log_subsection "No VRF"
+	setup
+
+	# tcp_l3mdev_accept should have no affect without VRF;
+	# run tests with it enabled and disabled to verify
+	log_subsection "tcp_l3mdev_accept disabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=0
+	ipv6_tcp_novrf
+	log_subsection "tcp_l3mdev_accept enabled"
+	set_sysctl net.ipv4.tcp_l3mdev_accept=1
+	ipv6_tcp_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv6_tcp_vrf
+}
+
+################################################################################
+# IPv6 UDP
+
+ipv6_udp_novrf()
+{
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		run_cmd nettest -6 -D -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+
+		log_start
+		run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "Device server"
+	done
+
+	a=${NSA_LO_IP6}
+	log_start
+	run_cmd nettest -6 -D -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd_nsb nettest -6 -D -r ${a}
+	log_test_addr ${a} $? 0 "Global server"
+
+	# should fail since loopback address is out of scope for a device
+	# bound server, but it does not - hence this is more documenting
+	# behavior.
+	#log_start
+	#show_hint "Should fail since loopback address is out of scope"
+	#run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	#run_cmd_nsb nettest -6 -D -r ${a}
+	#log_test_addr ${a} $? 1 "Device server"
+
+	# negative test - should fail
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ${NSA_LINKIP6}%${NSB_DEV}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# client
+	#
+	for a in ${NSB_IP6} ${NSB_LO_IP6} ${NSB_LINKIP6}%${NSA_DEV}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -0 ${NSA_IP6}
+		log_test_addr ${a} $? 0 "Client"
+
+		log_start
+		run_cmd_nsb nettest -6 -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -0 ${NSA_IP6}
+		log_test_addr ${a} $? 0 "Client, device bind"
+
+		log_start
+		run_cmd_nsb nettest -6 -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -C -0 ${NSA_IP6}
+		log_test_addr ${a} $? 0 "Client, device send via cmsg"
+
+		log_start
+		run_cmd_nsb nettest -6 -D -s &
+		wait_local_port_listen ${NSB} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S -0 ${NSA_IP6}
+		log_test_addr ${a} $? 0 "Client, device bind via IPV6_UNICAST_IF"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "No server, unbound client"
+
+		log_start
+		show_hint "Should fail 'Connection refused'"
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "No server, device client"
+	done
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6} ::1
+	do
+		log_start
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -0 ${a} -1 ${a}
+		log_test_addr ${a} $? 0 "Global server, local connection"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -D -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -r ${a}
+	log_test_addr ${a} $? 0 "Device server, unbound client, local connection"
+
+	for a in ${NSA_LO_IP6} ::1
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since address is out of device scope"
+		run_cmd nettest -6 -s -D -I ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "Device server, local connection"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device client, local connection"
+
+	log_start
+	run_cmd nettest -6 -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -C -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device send via cmsg, local connection"
+
+	log_start
+	run_cmd nettest -6 -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -S -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device client via IPV6_UNICAST_IF, local connection"
+
+	for a in ${NSA_LO_IP6} ::1
+	do
+		log_start
+		show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV}
+		log_test_addr ${a} $? 1 "Global server, device client, local connection"
+
+		log_start
+		show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -C
+		log_test_addr ${a} $? 1 "Global server, device send via cmsg, local connection"
+
+		log_start
+		show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S
+		log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection"
+
+		log_start
+		show_hint "Should fail 'No route to host' since addresses on loopback are out of device scope"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -r ${a} -d ${NSA_DEV} -S -U
+		log_test_addr ${a} $? 1 "Global server, device client via IP_UNICAST_IF, local connection, with connect()"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -D -s -I ${NSA_DEV} -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a} -0 ${a}
+	log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+	log_start
+	show_hint "Should fail 'Connection refused'"
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+	# LLA to GUA
+	run_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+	run_cmd_nsb ip -6 ro add ${NSA_IP6}/128 dev ${NSB_DEV}
+	log_start
+	run_cmd nettest -6 -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd_nsb nettest -6 -D -r ${NSA_IP6}
+	log_test $? 0 "UDP in - LLA to GUA"
+
+	run_cmd_nsb ip -6 ro del ${NSA_IP6}/128 dev ${NSB_DEV}
+	run_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV} nodad
+}
+
+ipv6_udp_vrf()
+{
+	local a
+
+	# disable global server
+	log_subsection "Global server disabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=0
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since global server is disabled"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "Global server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -I ${VRF} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "Enslaved device server"
+	done
+
+	# negative test - should fail
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since there is no server"
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		show_hint "Should fail 'Connection refused' since global server is disabled"
+		run_cmd nettest -6 -D -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 1 "Global server, VRF client, local conn"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -I ${VRF} -s &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd nettest -6 -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	show_hint "Should fail 'Connection refused' since global server is disabled"
+	run_cmd nettest -6 -D -s &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 1 "Global server, device client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${VRF} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Enslaved device server, device client, local conn"
+
+	# disable global server
+	log_subsection "Global server enabled"
+	set_sysctl net.ipv4.udp_l3mdev_accept=1
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "Global server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -I ${VRF} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "VRF server"
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+		wait_local_port_listen ${NSA} 12345 udp
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 0 "Enslaved device server"
+	done
+
+	# negative test - should fail
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd_nsb nettest -6 -D -r ${a}
+		log_test_addr ${a} $? 1 "No server"
+	done
+
+	#
+	# client tests
+	#
+	log_start
+	run_cmd_nsb nettest -6 -D -s &
+	wait_local_port_listen ${NSB} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${NSB_IP6}
+	log_test $? 0 "VRF client"
+
+	# negative test - should fail
+	log_start
+	run_cmd nettest -6 -D -d ${VRF} -r ${NSB_IP6}
+	log_test $? 1 "No server, VRF client"
+
+	log_start
+	run_cmd_nsb nettest -6 -D -s &
+	wait_local_port_listen ${NSB} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_IP6}
+	log_test $? 0 "Enslaved device client"
+
+	# negative test - should fail
+	log_start
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_IP6}
+	log_test $? 1 "No server, enslaved device client"
+
+	#
+	# local address tests
+	#
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -D -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+	#log_start
+	run_cmd nettest -6 -D -I ${VRF} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+
+	a=${VRF_IP6}
+	log_start
+	run_cmd nettest -6 -D -s -3 ${VRF} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${VRF} -s -3 ${VRF} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, VRF client, local conn"
+
+	# negative test - should fail
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -D -d ${VRF} -r ${a}
+		log_test_addr ${a} $? 1 "No server, VRF client, local conn"
+	done
+
+	# device to global IP
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -D -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Global server, device client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${VRF} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "VRF server, device client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${VRF} -r ${a}
+	log_test_addr ${a} $? 0 "Device server, VRF client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -I ${NSA_DEV} -s -3 ${NSA_DEV} &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 0 "Device server, device client, local conn"
+
+	log_start
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${a}
+	log_test_addr ${a} $? 1 "No server, device client, local conn"
+
+
+	# link local addresses
+	log_start
+	run_cmd nettest -6 -D -s &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd_nsb nettest -6 -D -d ${NSB_DEV} -r ${NSA_LINKIP6}
+	log_test $? 0 "Global server, linklocal IP"
+
+	log_start
+	run_cmd_nsb nettest -6 -D -d ${NSB_DEV} -r ${NSA_LINKIP6}
+	log_test $? 1 "No server, linklocal IP"
+
+
+	log_start
+	run_cmd_nsb nettest -6 -D -s &
+	wait_local_port_listen ${NSB} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_LINKIP6}
+	log_test $? 0 "Enslaved device client, linklocal IP"
+
+	log_start
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSB_LINKIP6}
+	log_test $? 1 "No server, device client, peer linklocal IP"
+
+
+	log_start
+	run_cmd nettest -6 -D -s &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSA_LINKIP6}
+	log_test $? 0 "Enslaved device client, local conn - linklocal IP"
+
+	log_start
+	run_cmd nettest -6 -D -d ${NSA_DEV} -r ${NSA_LINKIP6}
+	log_test $? 1 "No server, device client, local conn  - linklocal IP"
+
+	# LLA to GUA
+	run_cmd_nsb ip -6 addr del ${NSB_IP6}/64 dev ${NSB_DEV}
+	run_cmd_nsb ip -6 ro add ${NSA_IP6}/128 dev ${NSB_DEV}
+	log_start
+	run_cmd nettest -6 -s -D &
+	wait_local_port_listen ${NSA} 12345 udp
+	run_cmd_nsb nettest -6 -D -r ${NSA_IP6}
+	log_test $? 0 "UDP in - LLA to GUA"
+
+	run_cmd_nsb ip -6 ro del ${NSA_IP6}/128 dev ${NSB_DEV}
+	run_cmd_nsb ip -6 addr add ${NSB_IP6}/64 dev ${NSB_DEV} nodad
+}
+
+ipv6_udp()
+{
+        # should not matter, but set to known state
+        set_sysctl net.ipv4.udp_early_demux=1
+
+        log_section "IPv6/UDP"
+        log_subsection "No VRF"
+        setup
+
+        # udp_l3mdev_accept should have no affect without VRF;
+        # run tests with it enabled and disabled to verify
+        log_subsection "udp_l3mdev_accept disabled"
+        set_sysctl net.ipv4.udp_l3mdev_accept=0
+        ipv6_udp_novrf
+        log_subsection "udp_l3mdev_accept enabled"
+        set_sysctl net.ipv4.udp_l3mdev_accept=1
+        ipv6_udp_novrf
+
+        log_subsection "With VRF"
+        setup "yes"
+        ipv6_udp_vrf
+}
+
+################################################################################
+# IPv6 address bind
+
+ipv6_addr_bind_novrf()
+{
+	#
+	# raw socket
+	#
+	for a in ${NSA_IP6} ${NSA_LO_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address"
+
+		log_start
+		run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -I ${NSA_DEV} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+	done
+
+	#
+	# raw socket with nonlocal bind
+	#
+	a=${NL_IP6}
+	log_start
+	run_cmd nettest -6 -s -R -P icmp -f -l ${a} -I ${NSA_DEV} -b
+	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address"
+
+	#
+	# tcp sockets
+	#
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -l ${a} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to local address"
+
+	log_start
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to local address after device bind"
+
+	# Sadly, the kernel allows binding a socket to a device and then
+	# binding to an address not on the device. So this test passes
+	# when it really should not
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Technically should fail since address is not on device but kernel allows"
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to out of scope local address"
+}
+
+ipv6_addr_bind_vrf()
+{
+	#
+	# raw socket
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -I ${VRF} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after vrf bind"
+
+		log_start
+		run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -I ${NSA_DEV} -b
+		log_test_addr ${a} $? 0 "Raw socket bind to local address after device bind"
+	done
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Address on loopback is out of VRF scope"
+	run_cmd nettest -6 -s -R -P ipv6-icmp -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 1 "Raw socket bind to invalid local address after vrf bind"
+
+	#
+	# raw socket with nonlocal bind
+	#
+	a=${NL_IP6}
+	log_start
+	run_cmd nettest -6 -s -R -P icmp -f -l ${a} -I ${VRF} -b
+	log_test_addr ${a} $? 0 "Raw socket bind to nonlocal address after VRF bind"
+
+	#
+	# tcp sockets
+	#
+	# address on enslaved device is valid for the VRF or device in a VRF
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s -l ${a} -I ${VRF} -t1 -b
+		log_test_addr ${a} $? 0 "TCP socket bind to local address with VRF bind"
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to local address with device bind"
+
+	# Sadly, the kernel allows binding a socket to a device and then
+	# binding to an address not on the device. The only restriction
+	# is that the address is valid in the L3 domain. So this test
+	# passes when it really should not
+	a=${VRF_IP6}
+	log_start
+	show_hint "Technically should fail since address is not on device but kernel allows"
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 0 "TCP socket bind to VRF address with device bind"
+
+	a=${NSA_LO_IP6}
+	log_start
+	show_hint "Address on loopback out of scope for VRF"
+	run_cmd nettest -6 -s -l ${a} -I ${VRF} -t1 -b
+	log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for VRF"
+
+	log_start
+	show_hint "Address on loopback out of scope for device in VRF"
+	run_cmd nettest -6 -s -l ${a} -I ${NSA_DEV} -t1 -b
+	log_test_addr ${a} $? 1 "TCP socket bind to invalid local address for device bind"
+
+}
+
+ipv6_addr_bind()
+{
+	log_section "IPv6 address binds"
+
+	log_subsection "No VRF"
+	setup
+	ipv6_addr_bind_novrf
+
+	log_subsection "With VRF"
+	setup "yes"
+	ipv6_addr_bind_vrf
+}
+
+################################################################################
+# IPv6 runtime tests
+
+ipv6_rt()
+{
+	local desc="$1"
+	local varg="-6 $2"
+	local with_vrf="yes"
+	local a
+
+	#
+	# server tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest ${varg} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${varg} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, global server"
+
+		setup ${with_vrf}
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest ${varg} -I ${VRF} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${varg} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, VRF server"
+
+		setup ${with_vrf}
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest ${varg} -I ${NSA_DEV} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${varg} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, enslaved device server"
+
+		setup ${with_vrf}
+	done
+
+	#
+	# client test
+	#
+	log_start
+	run_cmd_nsb nettest ${varg} -s &
+	wait_local_port_listen ${NSB} 12345 tcp
+	run_cmd nettest ${varg} -d ${VRF} -r ${NSB_IP6} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test  0 0 "${desc}, VRF client"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd_nsb nettest ${varg} -s &
+	wait_local_port_listen ${NSB} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${NSB_IP6} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test  0 0 "${desc}, enslaved device client"
+
+	setup ${with_vrf}
+
+
+	#
+	# local address tests
+	#
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest ${varg} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, global server, VRF client"
+
+		setup ${with_vrf}
+	done
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest ${varg} -I ${VRF} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd nettest ${varg} -d ${VRF} -r ${a} &
+		sleep 3
+		run_cmd ip link del ${VRF}
+		sleep 1
+		log_test_addr ${a} 0 0 "${desc}, VRF server and client"
+
+		setup ${with_vrf}
+	done
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd nettest ${varg} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, global server, device client"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd nettest ${varg} -I ${VRF} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, VRF server, device client"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd nettest ${varg} -I ${NSA_DEV} -s &
+	wait_local_port_listen ${NSA} 12345 tcp
+	run_cmd nettest ${varg} -d ${NSA_DEV} -r ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "${desc}, device server, device client"
+}
+
+ipv6_ping_rt()
+{
+	local with_vrf="yes"
+	local a
+
+	a=${NSA_IP6}
+	log_start
+	run_cmd_nsb ${ping6} -f ${a} &
+	sleep 3
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "Device delete with active traffic - ping in"
+
+	setup ${with_vrf}
+
+	log_start
+	run_cmd ${ping6} -f ${NSB_IP6} -I ${VRF} &
+	sleep 1
+	run_cmd ip link del ${VRF}
+	sleep 1
+	log_test_addr ${a} 0 0 "Device delete with active traffic - ping out"
+}
+
+ipv6_runtime()
+{
+	log_section "Run time tests - ipv6"
+
+	setup "yes"
+	ipv6_ping_rt
+
+	setup "yes"
+	ipv6_rt "TCP active socket"  "-n -1"
+
+	setup "yes"
+	ipv6_rt "TCP passive socket" "-i"
+
+	setup "yes"
+	ipv6_rt "UDP active socket"  "-D -n -1"
+}
+
+################################################################################
+# netfilter blocking connections
+
+netfilter_tcp_reset()
+{
+	local a
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -r ${a}
+		log_test_addr ${a} $? 1 "Global server, reject with TCP-reset on Rx"
+	done
+}
+
+netfilter_icmp()
+{
+	local stype="$1"
+	local arg
+	local a
+
+	[ "${stype}" = "UDP" ] && arg="-D"
+
+	for a in ${NSA_IP} ${VRF_IP}
+	do
+		log_start
+		run_cmd nettest ${arg} -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest ${arg} -r ${a}
+		log_test_addr ${a} $? 1 "Global ${stype} server, Rx reject icmp-port-unreach"
+	done
+}
+
+ipv4_netfilter()
+{
+	log_section "IPv4 Netfilter"
+	log_subsection "TCP reset"
+
+	setup "yes"
+	run_cmd iptables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with tcp-reset
+
+	netfilter_tcp_reset
+
+	log_start
+	log_subsection "ICMP unreachable"
+
+	log_start
+	run_cmd iptables -F
+	run_cmd iptables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with icmp-port-unreachable
+	run_cmd iptables -A INPUT -p udp --dport 12345 -j REJECT --reject-with icmp-port-unreachable
+
+	netfilter_icmp "TCP"
+	netfilter_icmp "UDP"
+
+	log_start
+	iptables -F
+}
+
+netfilter_tcp6_reset()
+{
+	local a
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 -r ${a}
+		log_test_addr ${a} $? 1 "Global server, reject with TCP-reset on Rx"
+	done
+}
+
+netfilter_icmp6()
+{
+	local stype="$1"
+	local arg
+	local a
+
+	[ "${stype}" = "UDP" ] && arg="$arg -D"
+
+	for a in ${NSA_IP6} ${VRF_IP6}
+	do
+		log_start
+		run_cmd nettest -6 -s ${arg} &
+		wait_local_port_listen ${NSA} 12345 tcp
+		run_cmd_nsb nettest -6 ${arg} -r ${a}
+		log_test_addr ${a} $? 1 "Global ${stype} server, Rx reject icmp-port-unreach"
+	done
+}
+
+ipv6_netfilter()
+{
+	log_section "IPv6 Netfilter"
+	log_subsection "TCP reset"
+
+	setup "yes"
+	run_cmd ip6tables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with tcp-reset
+
+	netfilter_tcp6_reset
+
+	log_subsection "ICMP unreachable"
+
+	log_start
+	run_cmd ip6tables -F
+	run_cmd ip6tables -A INPUT -p tcp --dport 12345 -j REJECT --reject-with icmp6-port-unreachable
+	run_cmd ip6tables -A INPUT -p udp --dport 12345 -j REJECT --reject-with icmp6-port-unreachable
+
+	netfilter_icmp6 "TCP"
+	netfilter_icmp6 "UDP"
+
+	log_start
+	ip6tables -F
+}
+
+################################################################################
+# specific use cases
+
+# VRF only.
+# ns-A device enslaved to bridge. Verify traffic with and without
+# br_netfilter module loaded. Repeat with SVI on bridge.
+use_case_br()
+{
+	setup "yes"
+
+	setup_cmd ip link set ${NSA_DEV} down
+	setup_cmd ip addr del dev ${NSA_DEV} ${NSA_IP}/24
+	setup_cmd ip -6 addr del dev ${NSA_DEV} ${NSA_IP6}/64
+
+	setup_cmd ip link add br0 type bridge
+	setup_cmd ip addr add dev br0 ${NSA_IP}/24
+	setup_cmd ip -6 addr add dev br0 ${NSA_IP6}/64 nodad
+
+	setup_cmd ip li set ${NSA_DEV} master br0
+	setup_cmd ip li set ${NSA_DEV} up
+	setup_cmd ip li set br0 up
+	setup_cmd ip li set br0 vrf ${VRF}
+
+	rmmod br_netfilter 2>/dev/null
+	sleep 5 # DAD
+
+	run_cmd ip neigh flush all
+	run_cmd ping -c1 -w1 -I br0 ${NSB_IP}
+	log_test $? 0 "Bridge into VRF - IPv4 ping out"
+
+	run_cmd ip neigh flush all
+	run_cmd ${ping6} -c1 -w1 -I br0 ${NSB_IP6}
+	log_test $? 0 "Bridge into VRF - IPv6 ping out"
+
+	run_cmd ip neigh flush all
+	run_cmd_nsb ping -c1 -w1 ${NSA_IP}
+	log_test $? 0 "Bridge into VRF - IPv4 ping in"
+
+	run_cmd ip neigh flush all
+	run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+	log_test $? 0 "Bridge into VRF - IPv6 ping in"
+
+	modprobe br_netfilter
+	if [ $? -eq 0 ]; then
+		run_cmd ip neigh flush all
+		run_cmd ping -c1 -w1 -I br0 ${NSB_IP}
+		log_test $? 0 "Bridge into VRF with br_netfilter - IPv4 ping out"
+
+		run_cmd ip neigh flush all
+		run_cmd ${ping6} -c1 -w1 -I br0 ${NSB_IP6}
+		log_test $? 0 "Bridge into VRF with br_netfilter - IPv6 ping out"
+
+		run_cmd ip neigh flush all
+		run_cmd_nsb ping -c1 -w1 ${NSA_IP}
+		log_test $? 0 "Bridge into VRF with br_netfilter - IPv4 ping in"
+
+		run_cmd ip neigh flush all
+		run_cmd_nsb ${ping6} -c1 -w1 ${NSA_IP6}
+		log_test $? 0 "Bridge into VRF with br_netfilter - IPv6 ping in"
+	fi
+
+	setup_cmd ip li set br0 nomaster
+	setup_cmd ip li add br0.100 link br0 type vlan id 100
+	setup_cmd ip li set br0.100 vrf ${VRF} up
+	setup_cmd ip    addr add dev br0.100 172.16.101.1/24
+	setup_cmd ip -6 addr add dev br0.100 2001:db8:101::1/64 nodad
+
+	setup_cmd_nsb ip li add vlan100 link ${NSB_DEV} type vlan id 100
+	setup_cmd_nsb ip addr add dev vlan100 172.16.101.2/24
+	setup_cmd_nsb ip -6 addr add dev vlan100 2001:db8:101::2/64 nodad
+	setup_cmd_nsb ip li set vlan100 up
+	sleep 1
+
+	rmmod br_netfilter 2>/dev/null
+
+	run_cmd ip neigh flush all
+	run_cmd ping -c1 -w1 -I br0.100 172.16.101.2
+	log_test $? 0 "Bridge vlan into VRF - IPv4 ping out"
+
+	run_cmd ip neigh flush all
+	run_cmd ${ping6} -c1 -w1 -I br0.100 2001:db8:101::2
+	log_test $? 0 "Bridge vlan into VRF - IPv6 ping out"
+
+	run_cmd ip neigh flush all
+	run_cmd_nsb ping -c1 -w1 172.16.101.1
+	log_test $? 0 "Bridge vlan into VRF - IPv4 ping in"
+
+	run_cmd ip neigh flush all
+	run_cmd_nsb ${ping6} -c1 -w1 2001:db8:101::1
+	log_test $? 0 "Bridge vlan into VRF - IPv6 ping in"
+
+	modprobe br_netfilter
+	if [ $? -eq 0 ]; then
+		run_cmd ip neigh flush all
+		run_cmd ping -c1 -w1 -I br0.100 172.16.101.2
+		log_test $? 0 "Bridge vlan into VRF with br_netfilter - IPv4 ping out"
+
+		run_cmd ip neigh flush all
+		run_cmd ${ping6} -c1 -w1 -I br0.100 2001:db8:101::2
+		log_test $? 0 "Bridge vlan into VRF with br_netfilter - IPv6 ping out"
+
+		run_cmd ip neigh flush all
+		run_cmd_nsb ping -c1 -w1 172.16.101.1
+		log_test $? 0 "Bridge vlan into VRF - IPv4 ping in"
+
+		run_cmd ip neigh flush all
+		run_cmd_nsb ${ping6} -c1 -w1 2001:db8:101::1
+		log_test $? 0 "Bridge vlan into VRF - IPv6 ping in"
+	fi
+
+	setup_cmd ip li del br0 2>/dev/null
+	setup_cmd_nsb ip li del vlan100 2>/dev/null
+}
+
+# VRF only.
+# ns-A device is connected to both ns-B and ns-C on a single VRF but only has
+# LLA on the interfaces
+use_case_ping_lla_multi()
+{
+	setup_lla_only
+	# only want reply from ns-A
+	setup_cmd_nsb sysctl -qw net.ipv6.icmp.echo_ignore_multicast=1
+	setup_cmd_nsc sysctl -qw net.ipv6.icmp.echo_ignore_multicast=1
+
+	log_start
+	run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+	log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Pre cycle, ping out ns-B"
+
+	run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+	log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Pre cycle, ping out ns-C"
+
+	# cycle/flap the first ns-A interface
+	setup_cmd ip link set ${NSA_DEV} down
+	setup_cmd ip link set ${NSA_DEV} up
+	sleep 1
+
+	log_start
+	run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+	log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV}, ping out ns-B"
+	run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+	log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV}, ping out ns-C"
+
+	# cycle/flap the second ns-A interface
+	setup_cmd ip link set ${NSA_DEV2} down
+	setup_cmd ip link set ${NSA_DEV2} up
+	sleep 1
+
+	log_start
+	run_cmd_nsb ping -c1 -w1 ${MCAST}%${NSB_DEV}
+	log_test_addr ${MCAST}%${NSB_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV2}, ping out ns-B"
+	run_cmd_nsc ping -c1 -w1 ${MCAST}%${NSC_DEV}
+	log_test_addr ${MCAST}%${NSC_DEV} $? 0 "Post cycle ${NSA} ${NSA_DEV2}, ping out ns-C"
+}
+
+# Perform IPv{4,6} SNAT on ns-A, and verify TCP connection is successfully
+# established with ns-B.
+use_case_snat_on_vrf()
+{
+	setup "yes"
+
+	local port="12345"
+
+	run_cmd iptables -t nat -A POSTROUTING -p tcp -m tcp --dport ${port} -j SNAT --to-source ${NSA_LO_IP} -o ${VRF}
+	run_cmd ip6tables -t nat -A POSTROUTING -p tcp -m tcp --dport ${port} -j SNAT --to-source ${NSA_LO_IP6} -o ${VRF}
+
+	run_cmd_nsb nettest -s -l ${NSB_IP} -p ${port} &
+	wait_local_port_listen ${NSB} ${port} tcp
+	run_cmd nettest -d ${VRF} -r ${NSB_IP} -p ${port}
+	log_test $? 0 "IPv4 TCP connection over VRF with SNAT"
+
+	run_cmd_nsb nettest -6 -s -l ${NSB_IP6} -p ${port} &
+	wait_local_port_listen ${NSB} ${port} tcp
+	run_cmd nettest -6 -d ${VRF} -r ${NSB_IP6} -p ${port}
+	log_test $? 0 "IPv6 TCP connection over VRF with SNAT"
+
+	# Cleanup
+	run_cmd iptables -t nat -D POSTROUTING -p tcp -m tcp --dport ${port} -j SNAT --to-source ${NSA_LO_IP} -o ${VRF}
+	run_cmd ip6tables -t nat -D POSTROUTING -p tcp -m tcp --dport ${port} -j SNAT --to-source ${NSA_LO_IP6} -o ${VRF}
+}
+
+use_cases()
+{
+	log_section "Use cases"
+	log_subsection "Device enslaved to bridge"
+	use_case_br
+	log_subsection "Ping LLA with multiple interfaces"
+	use_case_ping_lla_multi
+	log_subsection "SNAT on VRF"
+	use_case_snat_on_vrf
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+	-4          IPv4 tests only
+	-6          IPv6 tests only
+	-t <test>   Test name/set to run
+	-p          Pause on fail
+	-P          Pause after each test
+	-v          Be verbose
+
+Tests:
+	$TESTS_IPV4 $TESTS_IPV6 $TESTS_OTHER
+EOF
+}
+
+################################################################################
+# main
+
+TESTS_IPV4="ipv4_ping ipv4_tcp ipv4_udp ipv4_bind ipv4_runtime ipv4_netfilter"
+TESTS_IPV6="ipv6_ping ipv6_tcp ipv6_udp ipv6_bind ipv6_runtime ipv6_netfilter"
+TESTS_OTHER="use_cases"
+# note: each TEST_ group needs a dedicated runner, e.g. fcnal-ipv4.sh
+
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+while getopts :46t:pPvh o
+do
+	case $o in
+		4) TESTS=ipv4;;
+		6) TESTS=ipv6;;
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=1;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+#
+# show user test config
+#
+if [ -z "$TESTS" ]; then
+	TESTS="$TESTS_IPV4 $TESTS_IPV6 $TESTS_OTHER"
+elif [ "$TESTS" = "ipv4" ]; then
+	TESTS="$TESTS_IPV4"
+elif [ "$TESTS" = "ipv6" ]; then
+	TESTS="$TESTS_IPV6"
+elif [ "$TESTS" = "other" ]; then
+	TESTS="$TESTS_OTHER"
+fi
+
+check_gen_prog "nettest"
+
+declare -i nfail=0
+declare -i nsuccess=0
+
+for t in $TESTS
+do
+	case $t in
+	ipv4_ping|ping)  ipv4_ping;;
+	ipv4_tcp|tcp)    ipv4_tcp;;
+	ipv4_udp|udp)    ipv4_udp;;
+	ipv4_bind|bind)  ipv4_addr_bind;;
+	ipv4_runtime)    ipv4_runtime;;
+	ipv4_netfilter)  ipv4_netfilter;;
+
+	ipv6_ping|ping6) ipv6_ping;;
+	ipv6_tcp|tcp6)   ipv6_tcp;;
+	ipv6_udp|udp6)   ipv6_udp;;
+	ipv6_bind|bind6) ipv6_addr_bind;;
+	ipv6_runtime)    ipv6_runtime;;
+	ipv6_netfilter)  ipv6_netfilter;;
+
+	use_cases)       use_cases;;
+
+	# setup namespaces and config, but do not run any tests
+	setup)		 setup; exit 0;;
+	vrf_setup)	 setup "yes"; exit 0;;
+	esac
+done
+
+cleanup 2>/dev/null
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
+
+if [ $nfail -ne 0 ]; then
+	exit 1 # KSFT_FAIL
+elif [ $nsuccess -eq 0 ]; then
+	exit $ksft_skip
+fi
+
+exit 0 # KSFT_PASS
diff --git a/tools/testing/selftests/net/fdb_flush.sh b/tools/testing/selftests/net/fdb_flush.sh
new file mode 100755
index 000000000000..9931a1e36e3d
--- /dev/null
+++ b/tools/testing/selftests/net/fdb_flush.sh
@@ -0,0 +1,813 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking functionality of flushing FDB entries.
+# Check that flush works as expected with all the supported arguments and verify
+# some combinations of arguments.
+
+source lib.sh
+
+FLUSH_BY_STATE_TESTS="
+	vxlan_test_flush_by_permanent
+	vxlan_test_flush_by_nopermanent
+	vxlan_test_flush_by_static
+	vxlan_test_flush_by_nostatic
+	vxlan_test_flush_by_dynamic
+	vxlan_test_flush_by_nodynamic
+"
+
+FLUSH_BY_FLAG_TESTS="
+	vxlan_test_flush_by_extern_learn
+	vxlan_test_flush_by_noextern_learn
+	vxlan_test_flush_by_router
+	vxlan_test_flush_by_norouter
+"
+
+TESTS="
+	vxlan_test_flush_by_dev
+	vxlan_test_flush_by_vni
+	vxlan_test_flush_by_src_vni
+	vxlan_test_flush_by_port
+	vxlan_test_flush_by_dst_ip
+	vxlan_test_flush_by_nhid
+	$FLUSH_BY_STATE_TESTS
+	$FLUSH_BY_FLAG_TESTS
+	vxlan_test_flush_by_several_args
+	vxlan_test_flush_by_remote_attributes
+	bridge_test_flush_by_dev
+	bridge_test_flush_by_vlan
+	bridge_vxlan_test_flush
+"
+
+: ${VERBOSE:=0}
+: ${PAUSE_ON_FAIL:=no}
+: ${PAUSE:=no}
+: ${VXPORT:=4789}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local rc
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+	local nsuccess
+	local nfail
+	local ret
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+MAC_POOL_1="
+	de:ad:be:ef:13:10
+	de:ad:be:ef:13:11
+	de:ad:be:ef:13:12
+	de:ad:be:ef:13:13
+	de:ad:be:ef:13:14
+"
+mac_pool_1_len=$(echo "$MAC_POOL_1" | grep -c .)
+
+MAC_POOL_2="
+	ca:fe:be:ef:13:10
+	ca:fe:be:ef:13:11
+	ca:fe:be:ef:13:12
+	ca:fe:be:ef:13:13
+	ca:fe:be:ef:13:14
+"
+mac_pool_2_len=$(echo "$MAC_POOL_2" | grep -c .)
+
+fdb_add_mac_pool_1()
+{
+	local dev=$1; shift
+	local args="$@"
+
+	for mac in $MAC_POOL_1
+	do
+		$BRIDGE fdb add $mac dev $dev $args
+	done
+}
+
+fdb_add_mac_pool_2()
+{
+	local dev=$1; shift
+	local args="$@"
+
+	for mac in $MAC_POOL_2
+	do
+		$BRIDGE fdb add $mac dev $dev $args
+	done
+}
+
+fdb_check_n_entries_by_dev_filter()
+{
+	local dev=$1; shift
+	local exp_entries=$1; shift
+	local filter="$@"
+
+	local entries=$($BRIDGE fdb show dev $dev | grep "$filter" | wc -l)
+
+	[[ $entries -eq $exp_entries ]]
+	rc=$?
+
+	log_test $rc 0 "$dev: Expected $exp_entries FDB entries, got $entries"
+	return $rc
+}
+
+vxlan_test_flush_by_dev()
+{
+	local vni=3000
+	local dst_ip=192.0.2.1
+
+	fdb_add_mac_pool_1 vx10 vni $vni dst $dst_ip
+	fdb_add_mac_pool_2 vx20 vni $vni dst $dst_ip
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len
+	fdb_check_n_entries_by_dev_filter vx20 $mac_pool_2_len
+
+	run_cmd "$BRIDGE fdb flush dev vx10"
+	log_test $? 0 "Flush FDB by dev vx10"
+
+	fdb_check_n_entries_by_dev_filter vx10 0
+	log_test $? 0 "Flush FDB by dev vx10 - test vx10 entries"
+
+	fdb_check_n_entries_by_dev_filter vx20 $mac_pool_2_len
+	log_test $? 0 "Flush FDB by dev vx10 - test vx20 entries"
+}
+
+vxlan_test_flush_by_vni()
+{
+	local vni_1=3000
+	local vni_2=4000
+	local dst_ip=192.0.2.1
+
+	fdb_add_mac_pool_1 vx10 vni $vni_1 dst $dst_ip
+	fdb_add_mac_pool_2 vx10 vni $vni_2 dst $dst_ip
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len vni $vni_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len vni $vni_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 vni $vni_2"
+	log_test $? 0 "Flush FDB by dev vx10 and vni $vni_2"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len vni $vni_1
+	log_test $? 0 "Test entries with vni $vni_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 vni $vni_2
+	log_test $? 0 "Test entries with vni $vni_2"
+}
+
+vxlan_test_flush_by_src_vni()
+{
+	# Set some entries with {vni=x,src_vni=y} and some with the opposite -
+	# {vni=y,src_vni=x}, to verify that when we flush by src_vni=x, entries
+	# with vni=x are not flused.
+	local vni_1=3000
+	local vni_2=4000
+	local src_vni_1=4000
+	local src_vni_2=3000
+	local dst_ip=192.0.2.1
+
+	# Reconfigure vx10 with 'external' to get 'src_vni' details in
+	# 'bridge fdb' output
+	$IP link del dev vx10
+	$IP link add name vx10 type vxlan dstport "$VXPORT" external
+
+	fdb_add_mac_pool_1 vx10 vni $vni_1 src_vni $src_vni_1 dst $dst_ip
+	fdb_add_mac_pool_2 vx10 vni $vni_2 src_vni $src_vni_2 dst $dst_ip
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len \
+		src_vni $src_vni_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len \
+		src_vni $src_vni_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 src_vni $src_vni_2"
+	log_test $? 0 "Flush FDB by dev vx10 and src_vni $src_vni_2"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len \
+		src_vni $src_vni_1
+	log_test $? 0 "Test entries with src_vni $src_vni_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 src_vni $src_vni_2
+	log_test $? 0 "Test entries with src_vni $src_vni_2"
+}
+
+vxlan_test_flush_by_port()
+{
+	local port_1=1234
+	local port_2=4321
+	local dst_ip=192.0.2.1
+
+	fdb_add_mac_pool_1 vx10 port $port_1 dst $dst_ip
+	fdb_add_mac_pool_2 vx10 port $port_2 dst $dst_ip
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len port $port_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len port $port_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 port $port_2"
+	log_test $? 0 "Flush FDB by dev vx10 and port $port_2"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len port $port_1
+	log_test $? 0 "Test entries with port $port_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 port $port_2
+	log_test $? 0 "Test entries with port $port_2"
+}
+
+vxlan_test_flush_by_dst_ip()
+{
+	local dst_ip_1=192.0.2.1
+	local dst_ip_2=192.0.2.2
+
+	fdb_add_mac_pool_1 vx10 dst $dst_ip_1
+	fdb_add_mac_pool_2 vx10 dst $dst_ip_2
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len dst $dst_ip_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 dst $dst_ip_2"
+	log_test $? 0 "Flush FDB by dev vx10 and dst $dst_ip_2"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip_1
+	log_test $? 0 "Test entries with dst $dst_ip_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 dst $dst_ip_2
+	log_test $? 0 "Test entries with dst $dst_ip_2"
+}
+
+nexthops_add()
+{
+	local nhid_1=$1; shift
+	local nhid_2=$1; shift
+
+	$IP nexthop add id 10 via 192.0.2.1 fdb
+	$IP nexthop add id $nhid_1 group 10 fdb
+
+	$IP nexthop add id 20 via 192.0.2.2 fdb
+	$IP nexthop add id $nhid_2 group 20 fdb
+}
+
+vxlan_test_flush_by_nhid()
+{
+	local nhid_1=100
+	local nhid_2=200
+
+	nexthops_add $nhid_1 $nhid_2
+
+	fdb_add_mac_pool_1 vx10 nhid $nhid_1
+	fdb_add_mac_pool_2 vx10 nhid $nhid_2
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len nhid $nhid_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len nhid $nhid_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 nhid $nhid_2"
+	log_test $? 0 "Flush FDB by dev vx10 and nhid $nhid_2"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len nhid $nhid_1
+	log_test $? 0 "Test entries with nhid $nhid_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 nhid $nhid_2
+	log_test $? 0 "Test entries with nhid $nhid_2"
+
+	# Flush also entries with $nhid_1, and then verify that flushing by
+	# 'nhid' does not return an error when there are no entries with
+	# nexthops.
+	run_cmd "$BRIDGE fdb flush dev vx10 nhid $nhid_1"
+	log_test $? 0 "Flush FDB by dev vx10 and nhid $nhid_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 nhid
+	log_test $? 0 "Test entries with 'nhid' keyword"
+
+	run_cmd "$BRIDGE fdb flush dev vx10 nhid $nhid_1"
+	log_test $? 0 "Flush FDB by nhid when there are no entries with nexthop"
+}
+
+vxlan_test_flush_by_state()
+{
+	local flush_by_state=$1; shift
+	local state_1=$1; shift
+	local exp_state_1=$1; shift
+	local state_2=$1; shift
+	local exp_state_2=$1; shift
+
+	local dst_ip_1=192.0.2.1
+	local dst_ip_2=192.0.2.2
+
+	fdb_add_mac_pool_1 vx10 dst $dst_ip_1 $state_1
+	fdb_add_mac_pool_2 vx10 dst $dst_ip_2 $state_2
+
+	# Check the entries by dst_ip as not all states appear in 'bridge fdb'
+	# output.
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len dst $dst_ip_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_by_state"
+	log_test $? 0 "Flush FDB by dev vx10 and state $flush_by_state"
+
+	fdb_check_n_entries_by_dev_filter vx10 $exp_state_1 dst $dst_ip_1
+	log_test $? 0 "Test entries with state $state_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 $exp_state_2 dst $dst_ip_2
+	log_test $? 0 "Test entries with state $state_2"
+}
+
+vxlan_test_flush_by_permanent()
+{
+	# Entries that are added without state get 'permanent' state by
+	# default, add some entries with flag 'extern_learn' instead of state,
+	# so they will be added with 'permanent' and should be flushed also.
+	local flush_by_state="permanent"
+	local state_1="permanent"
+	local exp_state_1=0
+	local state_2="extern_learn"
+	local exp_state_2=0
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_nopermanent()
+{
+	local flush_by_state="nopermanent"
+	local state_1="permanent"
+	local exp_state_1=$mac_pool_1_len
+	local state_2="static"
+	local exp_state_2=0
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_static()
+{
+	local flush_by_state="static"
+	local state_1="static"
+	local exp_state_1=0
+	local state_2="dynamic"
+	local exp_state_2=$mac_pool_2_len
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_nostatic()
+{
+	local flush_by_state="nostatic"
+	local state_1="permanent"
+	local exp_state_1=$mac_pool_1_len
+	local state_2="dynamic"
+	local exp_state_2=0
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_dynamic()
+{
+	local flush_by_state="dynamic"
+	local state_1="dynamic"
+	local exp_state_1=0
+	local state_2="static"
+	local exp_state_2=$mac_pool_2_len
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_nodynamic()
+{
+	local flush_by_state="nodynamic"
+	local state_1="permanent"
+	local exp_state_1=0
+	local state_2="dynamic"
+	local exp_state_2=$mac_pool_2_len
+
+	vxlan_test_flush_by_state $flush_by_state $state_1 $exp_state_1 \
+		$state_2 $exp_state_2
+}
+
+vxlan_test_flush_by_flag()
+{
+	local flush_by_flag=$1; shift
+	local flag_1=$1; shift
+	local exp_flag_1=$1; shift
+	local flag_2=$1; shift
+	local exp_flag_2=$1; shift
+
+	local dst_ip_1=192.0.2.1
+	local dst_ip_2=192.0.2.2
+
+	fdb_add_mac_pool_1 vx10 dst $dst_ip_1 $flag_1
+	fdb_add_mac_pool_2 vx10 dst $dst_ip_2 $flag_2
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len $flag_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len $flag_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_by_flag"
+	log_test $? 0 "Flush FDB by dev vx10 and flag $flush_by_flag"
+
+	fdb_check_n_entries_by_dev_filter vx10 $exp_flag_1 dst $dst_ip_1
+	log_test $? 0 "Test entries with flag $flag_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 $exp_flag_2 dst $dst_ip_2
+	log_test $? 0 "Test entries with flag $flag_2"
+}
+
+vxlan_test_flush_by_extern_learn()
+{
+	local flush_by_flag="extern_learn"
+	local flag_1="extern_learn"
+	local exp_flag_1=0
+	local flag_2="router"
+	local exp_flag_2=$mac_pool_2_len
+
+	vxlan_test_flush_by_flag $flush_by_flag $flag_1 $exp_flag_1 \
+		$flag_2 $exp_flag_2
+}
+
+vxlan_test_flush_by_noextern_learn()
+{
+	local flush_by_flag="noextern_learn"
+	local flag_1="extern_learn"
+	local exp_flag_1=$mac_pool_1_len
+	local flag_2="router"
+	local exp_flag_2=0
+
+	vxlan_test_flush_by_flag $flush_by_flag $flag_1 $exp_flag_1 \
+		$flag_2 $exp_flag_2
+}
+
+vxlan_test_flush_by_router()
+{
+	local flush_by_flag="router"
+	local flag_1="router"
+	local exp_flag_1=0
+	local flag_2="extern_learn"
+	local exp_flag_2=$mac_pool_2_len
+
+	vxlan_test_flush_by_flag $flush_by_flag $flag_1 $exp_flag_1 \
+		$flag_2 $exp_flag_2
+}
+
+vxlan_test_flush_by_norouter()
+{
+
+	local flush_by_flag="norouter"
+	local flag_1="router"
+	local exp_flag_1=$mac_pool_1_len
+	local flag_2="extern_learn"
+	local exp_flag_2=0
+
+	vxlan_test_flush_by_flag $flush_by_flag $flag_1 $exp_flag_1 \
+		$flag_2 $exp_flag_2
+}
+
+vxlan_test_flush_by_several_args()
+{
+	local dst_ip_1=192.0.2.1
+	local dst_ip_2=192.0.2.2
+	local state_1=permanent
+	local state_2=static
+	local vni=3000
+	local port=1234
+	local nhid=100
+	local flag=router
+	local flush_args
+
+	################### Flush by 2 args - nhid and flag ####################
+	$IP nexthop add id 10 via 192.0.2.1 fdb
+	$IP nexthop add id $nhid group 10 fdb
+
+	fdb_add_mac_pool_1 vx10 nhid $nhid $flag $state_1
+	fdb_add_mac_pool_2 vx10 nhid $nhid $flag $state_2
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len $state_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len $state_2
+
+	run_cmd "$BRIDGE fdb flush dev vx10 nhid $nhid $flag"
+	log_test $? 0 "Flush FDB by dev vx10 nhid $nhid $flag"
+
+	# All entries should be flushed as 'state' is not an argument for flush
+	# filtering.
+	fdb_check_n_entries_by_dev_filter vx10 0 $state_1
+	log_test $? 0 "Test entries with state $state_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 $state_2
+	log_test $? 0 "Test entries with state $state_2"
+
+	################ Flush by 3 args - VNI, port and dst_ip ################
+	fdb_add_mac_pool_1 vx10 vni $vni port $port dst $dst_ip_1
+	fdb_add_mac_pool_2 vx10 vni $vni port $port dst $dst_ip_2
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_2_len dst $dst_ip_2
+
+	flush_args="vni $vni port $port dst $dst_ip_2"
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_args"
+	log_test $? 0 "Flush FDB by dev vx10 $flush_args"
+
+	# Only entries with $dst_ip_2 should be flushed, even the rest arguments
+	# match the filter, the flush should be AND of all the arguments.
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip_1
+	log_test $? 0 "Test entries with dst $dst_ip_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 dst $dst_ip_2
+	log_test $? 0 "Test entries with dst $dst_ip_2"
+}
+
+multicast_fdb_entries_add()
+{
+	mac=00:00:00:00:00:00
+	vnis=(2000 3000)
+
+	for vni in "${vnis[@]}"; do
+		$BRIDGE fdb append $mac dev vx10 dst 192.0.2.1 vni $vni \
+			src_vni 5000
+		$BRIDGE fdb append $mac dev vx10 dst 192.0.2.1 vni $vni \
+			port 1111
+		$BRIDGE fdb append $mac dev vx10 dst 192.0.2.2 vni $vni \
+			port 2222
+	done
+}
+
+vxlan_test_flush_by_remote_attributes()
+{
+	local flush_args
+
+	# Reconfigure vx10 with 'external' to get 'src_vni' details in
+	# 'bridge fdb' output
+	$IP link del dev vx10
+	$IP link add name vx10 type vxlan dstport "$VXPORT" external
+
+	# For multicast FDB entries, the VXLAN driver stores a linked list of
+	# remotes for a given key. Verify that only the expected remotes are
+	# flushed.
+	multicast_fdb_entries_add
+
+	## Flush by 3 remote's attributes - destination IP, port and VNI ##
+	flush_args="dst 192.0.2.1 port 1111 vni 2000"
+	fdb_check_n_entries_by_dev_filter vx10 1 $flush_args
+
+	t0_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_args"
+	log_test $? 0 "Flush FDB by dev vx10 $flush_args"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 $flush_args
+
+	exp_n_entries=$((t0_n_entries - 1))
+	t1_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	[[ $t1_n_entries -eq $exp_n_entries ]]
+	log_test $? 0 "Check how many entries were flushed"
+
+	## Flush by 2 remote's attributes - destination IP and port ##
+	flush_args="dst 192.0.2.2 port 2222"
+
+	fdb_check_n_entries_by_dev_filter vx10 2 $flush_args
+
+	t0_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_args"
+	log_test $? 0 "Flush FDB by dev vx10 $flush_args"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 $flush_args
+
+	exp_n_entries=$((t0_n_entries - 2))
+	t1_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	[[ $t1_n_entries -eq $exp_n_entries ]]
+	log_test $? 0 "Check how many entries were flushed"
+
+	## Flush by source VNI, which is not remote's attribute and VNI ##
+	flush_args="vni 3000 src_vni 5000"
+
+	fdb_check_n_entries_by_dev_filter vx10 1 $flush_args
+
+	t0_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_args"
+	log_test $? 0 "Flush FDB by dev vx10 $flush_args"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 $flush_args
+
+	exp_n_entries=$((t0_n_entries -1))
+	t1_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	[[ $t1_n_entries -eq $exp_n_entries ]]
+	log_test $? 0 "Check how many entries were flushed"
+
+	# Flush by 1 remote's attribute - destination IP ##
+	flush_args="dst 192.0.2.1"
+
+	fdb_check_n_entries_by_dev_filter vx10 2 $flush_args
+
+	t0_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	run_cmd "$BRIDGE fdb flush dev vx10 $flush_args"
+	log_test $? 0 "Flush FDB by dev vx10 $flush_args"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 $flush_args
+
+	exp_n_entries=$((t0_n_entries -2))
+	t1_n_entries=$($BRIDGE fdb show dev vx10 | wc -l)
+	[[ $t1_n_entries -eq $exp_n_entries ]]
+	log_test $? 0 "Check how many entries were flushed"
+}
+
+bridge_test_flush_by_dev()
+{
+	local dst_ip=192.0.2.1
+	local br0_n_ent_t0=$($BRIDGE fdb show dev br0 | wc -l)
+	local br1_n_ent_t0=$($BRIDGE fdb show dev br1 | wc -l)
+
+	fdb_add_mac_pool_1 br0 dst $dst_ip
+	fdb_add_mac_pool_2 br1 dst $dst_ip
+
+	# Each 'fdb add' command adds one extra entry in the bridge with the
+	# default vlan.
+	local exp_br0_n_ent=$(($br0_n_ent_t0 + 2 * $mac_pool_1_len))
+	local exp_br1_n_ent=$(($br1_n_ent_t0 + 2 * $mac_pool_2_len))
+
+	fdb_check_n_entries_by_dev_filter br0 $exp_br0_n_ent
+	fdb_check_n_entries_by_dev_filter br1 $exp_br1_n_ent
+
+	run_cmd "$BRIDGE fdb flush dev br0"
+	log_test $? 0 "Flush FDB by dev br0"
+
+	# The default entry should not be flushed
+	fdb_check_n_entries_by_dev_filter br0 1
+	log_test $? 0 "Flush FDB by dev br0 - test br0 entries"
+
+	fdb_check_n_entries_by_dev_filter br1 $exp_br1_n_ent
+	log_test $? 0 "Flush FDB by dev br0 - test br1 entries"
+}
+
+bridge_test_flush_by_vlan()
+{
+	local vlan_1=10
+	local vlan_2=20
+	local vlan_1_ent_t0
+	local vlan_2_ent_t0
+
+	$BRIDGE vlan add vid $vlan_1 dev br0 self
+	$BRIDGE vlan add vid $vlan_2 dev br0 self
+
+	vlan_1_ent_t0=$($BRIDGE fdb show dev br0 | grep "vlan $vlan_1" | wc -l)
+	vlan_2_ent_t0=$($BRIDGE fdb show dev br0 | grep "vlan $vlan_2" | wc -l)
+
+	fdb_add_mac_pool_1 br0 vlan $vlan_1
+	fdb_add_mac_pool_2 br0 vlan $vlan_2
+
+	local exp_vlan_1_ent=$(($vlan_1_ent_t0 + $mac_pool_1_len))
+	local exp_vlan_2_ent=$(($vlan_2_ent_t0 + $mac_pool_2_len))
+
+	fdb_check_n_entries_by_dev_filter br0 $exp_vlan_1_ent vlan $vlan_1
+	fdb_check_n_entries_by_dev_filter br0 $exp_vlan_2_ent vlan $vlan_2
+
+	run_cmd "$BRIDGE fdb flush dev br0 vlan $vlan_1"
+	log_test $? 0 "Flush FDB by dev br0 and vlan $vlan_1"
+
+	fdb_check_n_entries_by_dev_filter br0 0 vlan $vlan_1
+	log_test $? 0 "Test entries with vlan $vlan_1"
+
+	fdb_check_n_entries_by_dev_filter br0 $exp_vlan_2_ent vlan $vlan_2
+	log_test $? 0 "Test entries with vlan $vlan_2"
+}
+
+bridge_vxlan_test_flush()
+{
+	local vlan_1=10
+	local dst_ip=192.0.2.1
+
+	$IP link set dev vx10 master br0
+	$BRIDGE vlan add vid $vlan_1 dev br0 self
+	$BRIDGE vlan add vid $vlan_1 dev vx10
+
+	fdb_add_mac_pool_1 vx10 vni 3000 dst $dst_ip self master
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len vlan $vlan_1
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len vni 3000
+
+	# Such command should fail in VXLAN driver as vlan is not supported,
+	# but the command should flush the entries in the bridge
+	run_cmd "$BRIDGE fdb flush dev vx10 vlan $vlan_1 master self"
+	log_test $? 255 \
+		"Flush FDB by dev vx10, vlan $vlan_1, master and self"
+
+	fdb_check_n_entries_by_dev_filter vx10 0 vlan $vlan_1
+	log_test $? 0 "Test entries with vlan $vlan_1"
+
+	fdb_check_n_entries_by_dev_filter vx10 $mac_pool_1_len dst $dst_ip
+	log_test $? 0 "Test entries with dst $dst_ip"
+}
+
+setup()
+{
+	setup_ns NS
+	IP="ip -netns ${NS}"
+	BRIDGE="bridge -netns ${NS}"
+
+	$IP link add name vx10 type vxlan id 1000 dstport "$VXPORT"
+	$IP link add name vx20 type vxlan id 2000 dstport "$VXPORT"
+
+	$IP link add br0 type bridge vlan_filtering 1
+	$IP link add br1 type bridge vlan_filtering 1
+}
+
+cleanup()
+{
+	$IP link del dev br1
+	$IP link del dev br0
+
+	$IP link del dev vx20
+	$IP link del dev vx10
+
+	cleanup_ns ${NS}
+}
+
+################################################################################
+# main
+
+while getopts :t:pPhvw: o
+do
+	case $o in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		w) PING_TIMEOUT=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+# Check a flag that is added to flush command as part of VXLAN flush support
+bridge fdb help 2>&1 | grep -q "\[no\]router"
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing flush command for VXLAN"
+	exit $ksft_skip
+fi
+
+ip link add dev vx10 type vxlan id 1000 2> /dev/null
+out=$(bridge fdb flush dev vx10 2>&1 | grep -q "Operation not supported")
+if [ $? -eq 0 ]; then
+	echo "SKIP: kernel lacks vxlan flush support"
+	exit $ksft_skip
+fi
+ip link del dev vx10
+
+for t in $TESTS
+do
+	setup; $t; cleanup;
+done
diff --git a/tools/testing/selftests/net/fdb_notify.sh b/tools/testing/selftests/net/fdb_notify.sh
new file mode 100755
index 000000000000..0b8a2465dd04
--- /dev/null
+++ b/tools/testing/selftests/net/fdb_notify.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+ALL_TESTS="
+	test_dup_bridge
+	test_dup_vxlan_self
+	test_dup_vxlan_master
+	test_dup_macvlan_self
+	test_dup_macvlan_master
+"
+
+do_test_dup()
+{
+	local op=$1; shift
+	local what=$1; shift
+	local tmpf
+
+	RET=0
+
+	tmpf=$(mktemp)
+	defer rm "$tmpf"
+
+	defer_scope_push
+		bridge monitor fdb &> "$tmpf" &
+		defer kill_process $!
+
+		sleep 0.5
+		bridge fdb "$op" 00:11:22:33:44:55 vlan 1 "$@"
+		sleep 0.5
+	defer_scope_pop
+
+	local count=$(grep -c -e 00:11:22:33:44:55 $tmpf)
+	((count == 1))
+	check_err $? "Got $count notifications, expected 1"
+
+	log_test "$what $op: Duplicate notifications"
+}
+
+test_dup_bridge()
+{
+	adf_ip_link_add br up type bridge vlan_filtering 1
+	do_test_dup add "bridge" dev br self
+	do_test_dup del "bridge" dev br self
+}
+
+test_dup_vxlan_self()
+{
+	adf_ip_link_add br up type bridge vlan_filtering 1
+	adf_ip_link_add vx up type vxlan id 2000 dstport 4789
+	adf_ip_link_set_master vx br
+
+	do_test_dup add "vxlan" dev vx self dst 192.0.2.1
+	do_test_dup del "vxlan" dev vx self dst 192.0.2.1
+}
+
+test_dup_vxlan_master()
+{
+	adf_ip_link_add br up type bridge vlan_filtering 1
+	adf_ip_link_add vx up type vxlan id 2000 dstport 4789
+	adf_ip_link_set_master vx br
+
+	do_test_dup add "vxlan master" dev vx master
+	do_test_dup del "vxlan master" dev vx master
+}
+
+test_dup_macvlan_self()
+{
+	adf_ip_link_add dd up type dummy
+	adf_ip_link_add mv up link dd type macvlan mode passthru
+
+	do_test_dup add "macvlan self" dev mv self
+	do_test_dup del "macvlan self" dev mv self
+}
+
+test_dup_macvlan_master()
+{
+	adf_ip_link_add br up type bridge vlan_filtering 1
+	adf_ip_link_add dd up type dummy
+	adf_ip_link_add mv up link dd type macvlan mode passthru
+	adf_ip_link_set_master mv br
+
+	do_test_dup add "macvlan master" dev mv self
+	do_test_dup del "macvlan master" dev mv self
+}
+
+cleanup()
+{
+	defer_scopes_cleanup
+}
+
+trap cleanup EXIT
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/fib-onlink-tests.sh b/tools/testing/selftests/net/fib-onlink-tests.sh
new file mode 100755
index 000000000000..ec2d6ceb1f08
--- /dev/null
+++ b/tools/testing/selftests/net/fib-onlink-tests.sh
@@ -0,0 +1,502 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# IPv4 and IPv6 onlink tests
+
+source lib.sh
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+VERBOSE=0
+
+# Network interfaces
+# - odd in current namespace; even in peer ns
+declare -A NETIFS
+# default VRF
+NETIFS[p1]=veth1
+NETIFS[p2]=veth2
+NETIFS[p3]=veth3
+NETIFS[p4]=veth4
+# VRF
+NETIFS[p5]=veth5
+NETIFS[p6]=veth6
+NETIFS[p7]=veth7
+NETIFS[p8]=veth8
+
+# /24 network
+declare -A V4ADDRS
+V4ADDRS[p1]=169.254.1.1
+V4ADDRS[p2]=169.254.1.2
+V4ADDRS[p3]=169.254.3.1
+V4ADDRS[p4]=169.254.3.2
+V4ADDRS[p5]=169.254.5.1
+V4ADDRS[p6]=169.254.5.2
+V4ADDRS[p7]=169.254.7.1
+V4ADDRS[p8]=169.254.7.2
+
+# /64 network
+declare -A V6ADDRS
+V6ADDRS[p1]=2001:db8:101::1
+V6ADDRS[p2]=2001:db8:101::2
+V6ADDRS[p3]=2001:db8:301::1
+V6ADDRS[p4]=2001:db8:301::2
+V6ADDRS[p5]=2001:db8:501::1
+V6ADDRS[p6]=2001:db8:501::2
+V6ADDRS[p7]=2001:db8:701::1
+V6ADDRS[p8]=2001:db8:701::2
+
+# Test networks:
+# [1] = default table
+# [2] = VRF
+#
+# /32 host routes
+declare -A TEST_NET4
+TEST_NET4[1]=169.254.101
+TEST_NET4[2]=169.254.102
+# /128 host routes
+declare -A TEST_NET6
+TEST_NET6[1]=2001:db8:101
+TEST_NET6[2]=2001:db8:102
+
+# connected gateway
+CONGW[1]=169.254.1.254
+CONGW[2]=169.254.3.254
+CONGW[3]=169.254.5.254
+
+# recursive gateway
+RECGW4[1]=169.254.11.254
+RECGW4[2]=169.254.12.254
+RECGW6[1]=2001:db8:11::64
+RECGW6[2]=2001:db8:12::64
+
+# for v4 mapped to v6
+declare -A TEST_NET4IN6IN6
+TEST_NET4IN6[1]=10.1.1.254
+TEST_NET4IN6[2]=10.2.1.254
+
+# mcast address
+MCAST6=ff02::1
+
+VRF=lisa
+VRF_TABLE=1101
+PBR_TABLE=101
+
+################################################################################
+# utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "    TEST: %-50s  [ OK ]\n" "${msg}"
+	else
+		nfail=$((nfail+1))
+		printf "    TEST: %-50s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "######################################################################"
+	echo "TEST SECTION: $*"
+	echo "######################################################################"
+}
+
+log_subsection()
+{
+	echo
+	echo "#########################################"
+	echo "TEST SUBSECTION: $*"
+}
+
+run_cmd()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+	fi
+
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+get_linklocal()
+{
+	local dev=$1
+	local pfx
+	local addr
+
+	addr=$(${pfx} ip -6 -br addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+################################################################################
+#
+
+setup()
+{
+	echo
+	echo "########################################"
+	echo "Configuring interfaces"
+
+	set -e
+
+	# create namespace
+	setup_ns PEER_NS
+
+	# add vrf table
+	ip li add ${VRF} type vrf table ${VRF_TABLE}
+	ip li set ${VRF} up
+	ip ro add table ${VRF_TABLE} unreachable default metric 8192
+	ip -6 ro add table ${VRF_TABLE} unreachable default metric 8192
+
+	# create test interfaces
+	ip li add ${NETIFS[p1]} type veth peer name ${NETIFS[p2]}
+	ip li add ${NETIFS[p3]} type veth peer name ${NETIFS[p4]}
+	ip li add ${NETIFS[p5]} type veth peer name ${NETIFS[p6]}
+	ip li add ${NETIFS[p7]} type veth peer name ${NETIFS[p8]}
+
+	# enslave vrf interfaces
+	for n in 5 7; do
+		ip li set ${NETIFS[p${n}]} vrf ${VRF}
+	done
+
+	# add addresses
+	for n in 1 3 5 7; do
+		ip li set ${NETIFS[p${n}]} up
+		ip addr add ${V4ADDRS[p${n}]}/24 dev ${NETIFS[p${n}]}
+		ip addr add ${V6ADDRS[p${n}]}/64 dev ${NETIFS[p${n}]} nodad
+	done
+
+	# move peer interfaces to namespace and add addresses
+	for n in 2 4 6 8; do
+		ip li set ${NETIFS[p${n}]} netns ${PEER_NS} up
+		ip -netns ${PEER_NS} addr add ${V4ADDRS[p${n}]}/24 dev ${NETIFS[p${n}]}
+		ip -netns ${PEER_NS} addr add ${V6ADDRS[p${n}]}/64 dev ${NETIFS[p${n}]} nodad
+	done
+
+	ip -6 ro add default via ${V6ADDRS[p3]/::[0-9]/::64}
+	ip -6 ro add table ${VRF_TABLE} default via ${V6ADDRS[p7]/::[0-9]/::64}
+
+	set +e
+}
+
+cleanup()
+{
+	# make sure we start from a clean slate
+	cleanup_ns ${PEER_NS} 2>/dev/null
+	for n in 1 3 5 7; do
+		ip link del ${NETIFS[p${n}]} 2>/dev/null
+	done
+	ip link del ${VRF} 2>/dev/null
+	ip ro flush table ${VRF_TABLE}
+	ip -6 ro flush table ${VRF_TABLE}
+}
+
+################################################################################
+# IPv4 tests
+#
+
+run_ip()
+{
+	local table="$1"
+	local prefix="$2"
+	local gw="$3"
+	local dev="$4"
+	local exp_rc="$5"
+	local desc="$6"
+
+	# dev arg may be empty
+	[ -n "${dev}" ] && dev="dev ${dev}"
+
+	run_cmd ip ro add table "${table}" "${prefix}"/32 via "${gw}" "${dev}" onlink
+	log_test $? ${exp_rc} "${desc}"
+}
+
+run_ip_mpath()
+{
+	local table="$1"
+	local prefix="$2"
+	local nh1="$3"
+	local nh2="$4"
+	local exp_rc="$5"
+	local desc="$6"
+
+	# dev arg may be empty
+	[ -n "${dev}" ] && dev="dev ${dev}"
+
+	run_cmd ip ro add table "${table}" "${prefix}"/32 \
+		nexthop via ${nh1} nexthop via ${nh2}
+	log_test $? ${exp_rc} "${desc}"
+}
+
+valid_onlink_ipv4()
+{
+	# - unicast connected, unicast recursive
+	#
+	log_subsection "default VRF - main table"
+
+	run_ip 254 ${TEST_NET4[1]}.1 ${CONGW[1]} ${NETIFS[p1]} 0 "unicast connected"
+	run_ip 254 ${TEST_NET4[1]}.2 ${RECGW4[1]} ${NETIFS[p1]} 0 "unicast recursive"
+
+	log_subsection "VRF ${VRF}"
+
+	run_ip ${VRF_TABLE} ${TEST_NET4[2]}.1 ${CONGW[3]} ${NETIFS[p5]} 0 "unicast connected"
+	run_ip ${VRF_TABLE} ${TEST_NET4[2]}.2 ${RECGW4[2]} ${NETIFS[p5]} 0 "unicast recursive"
+
+	log_subsection "VRF device, PBR table"
+
+	run_ip ${PBR_TABLE} ${TEST_NET4[2]}.3 ${CONGW[3]} ${NETIFS[p5]} 0 "unicast connected"
+	run_ip ${PBR_TABLE} ${TEST_NET4[2]}.4 ${RECGW4[2]} ${NETIFS[p5]} 0 "unicast recursive"
+
+	# multipath version
+	#
+	log_subsection "default VRF - main table - multipath"
+
+	run_ip_mpath 254 ${TEST_NET4[1]}.5 \
+		"${CONGW[1]} dev ${NETIFS[p1]} onlink" \
+		"${CONGW[2]} dev ${NETIFS[p3]} onlink" \
+		0 "unicast connected - multipath"
+
+	run_ip_mpath 254 ${TEST_NET4[1]}.6 \
+		"${RECGW4[1]} dev ${NETIFS[p1]} onlink" \
+		"${RECGW4[2]} dev ${NETIFS[p3]} onlink" \
+		0 "unicast recursive - multipath"
+
+	run_ip_mpath 254 ${TEST_NET4[1]}.7 \
+		"${CONGW[1]} dev ${NETIFS[p1]}"        \
+		"${CONGW[2]} dev ${NETIFS[p3]} onlink" \
+		0 "unicast connected - multipath onlink first only"
+
+	run_ip_mpath 254 ${TEST_NET4[1]}.8 \
+		"${CONGW[1]} dev ${NETIFS[p1]} onlink" \
+		"${CONGW[2]} dev ${NETIFS[p3]}"        \
+		0 "unicast connected - multipath onlink second only"
+}
+
+invalid_onlink_ipv4()
+{
+	run_ip 254 ${TEST_NET4[1]}.11 ${V4ADDRS[p1]} ${NETIFS[p1]} 2 \
+		"Invalid gw - local unicast address"
+
+	run_ip ${VRF_TABLE} ${TEST_NET4[2]}.11 ${V4ADDRS[p5]} ${NETIFS[p5]} 2 \
+		"Invalid gw - local unicast address, VRF"
+
+	run_ip 254 ${TEST_NET4[1]}.101 ${V4ADDRS[p1]} "" 2 "No nexthop device given"
+
+	run_ip 254 ${TEST_NET4[1]}.102 ${V4ADDRS[p3]} ${NETIFS[p1]} 2 \
+		"Gateway resolves to wrong nexthop device"
+
+	run_ip ${VRF_TABLE} ${TEST_NET4[2]}.103 ${V4ADDRS[p7]} ${NETIFS[p5]} 2 \
+		"Gateway resolves to wrong nexthop device - VRF"
+}
+
+################################################################################
+# IPv6 tests
+#
+
+run_ip6()
+{
+	local table="$1"
+	local prefix="$2"
+	local gw="$3"
+	local dev="$4"
+	local exp_rc="$5"
+	local desc="$6"
+
+	# dev arg may be empty
+	[ -n "${dev}" ] && dev="dev ${dev}"
+
+	run_cmd ip -6 ro add table "${table}" "${prefix}"/128 via "${gw}" "${dev}" onlink
+	log_test $? ${exp_rc} "${desc}"
+}
+
+run_ip6_mpath()
+{
+	local table="$1"
+	local prefix="$2"
+	local opts="$3"
+	local nh1="$4"
+	local nh2="$5"
+	local exp_rc="$6"
+	local desc="$7"
+
+	run_cmd ip -6 ro add table "${table}" "${prefix}"/128 "${opts}" \
+		nexthop via ${nh1} nexthop via ${nh2}
+	log_test $? ${exp_rc} "${desc}"
+}
+
+valid_onlink_ipv6()
+{
+	# - unicast connected, unicast recursive, v4-mapped
+	#
+	log_subsection "default VRF - main table"
+
+	run_ip6 254 ${TEST_NET6[1]}::1 ${V6ADDRS[p1]/::*}::64 ${NETIFS[p1]} 0 "unicast connected"
+	run_ip6 254 ${TEST_NET6[1]}::2 ${RECGW6[1]} ${NETIFS[p1]} 0 "unicast recursive"
+	run_ip6 254 ${TEST_NET6[1]}::3 ::ffff:${TEST_NET4IN6[1]} ${NETIFS[p1]} 0 "v4-mapped"
+
+	log_subsection "VRF ${VRF}"
+
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::1 ${V6ADDRS[p5]/::*}::64 ${NETIFS[p5]} 0 "unicast connected"
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::2 ${RECGW6[2]} ${NETIFS[p5]} 0 "unicast recursive"
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::3 ::ffff:${TEST_NET4IN6[2]} ${NETIFS[p5]} 0 "v4-mapped"
+
+	log_subsection "VRF device, PBR table"
+
+	run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::4 ${V6ADDRS[p5]/::*}::64 ${NETIFS[p5]} 0 "unicast connected"
+	run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::5 ${RECGW6[2]} ${NETIFS[p5]} 0 "unicast recursive"
+	run_ip6 ${PBR_TABLE} ${TEST_NET6[2]}::6 ::ffff:${TEST_NET4IN6[2]} ${NETIFS[p5]} 0 "v4-mapped"
+
+	# multipath version
+	#
+	log_subsection "default VRF - main table - multipath"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::4 "onlink" \
+		"${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]}" \
+		"${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]}" \
+		0 "unicast connected - multipath onlink"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::5 "onlink" \
+		"${RECGW6[1]} dev ${NETIFS[p1]}" \
+		"${RECGW6[2]} dev ${NETIFS[p3]}" \
+		0 "unicast recursive - multipath onlink"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::6 "onlink" \
+		"::ffff:${TEST_NET4IN6[1]} dev ${NETIFS[p1]}" \
+		"::ffff:${TEST_NET4IN6[2]} dev ${NETIFS[p3]}" \
+		0 "v4-mapped - multipath onlink"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::7 "" \
+		"${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]} onlink" \
+		"${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]} onlink" \
+		0 "unicast connected - multipath onlink both nexthops"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::8 "" \
+		"${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]} onlink" \
+		"${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]}" \
+		0 "unicast connected - multipath onlink first only"
+
+	run_ip6_mpath 254 ${TEST_NET6[1]}::9 "" \
+		"${V6ADDRS[p1]/::*}::64 dev ${NETIFS[p1]}"        \
+		"${V6ADDRS[p3]/::*}::64 dev ${NETIFS[p3]} onlink" \
+		0 "unicast connected - multipath onlink second only"
+}
+
+invalid_onlink_ipv6()
+{
+	local lladdr
+
+	lladdr=$(get_linklocal ${NETIFS[p1]}) || return 1
+
+	run_ip6 254 ${TEST_NET6[1]}::11 ${V6ADDRS[p1]} ${NETIFS[p1]} 2 \
+		"Invalid gw - local unicast address"
+	run_ip6 254 ${TEST_NET6[1]}::12 ${lladdr} ${NETIFS[p1]} 2 \
+		"Invalid gw - local linklocal address"
+	run_ip6 254 ${TEST_NET6[1]}::12 ${MCAST6} ${NETIFS[p1]} 2 \
+		"Invalid gw - multicast address"
+
+	lladdr=$(get_linklocal ${NETIFS[p5]}) || return 1
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::11 ${V6ADDRS[p5]} ${NETIFS[p5]} 2 \
+		"Invalid gw - local unicast address, VRF"
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::12 ${lladdr} ${NETIFS[p5]} 2 \
+		"Invalid gw - local linklocal address, VRF"
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::12 ${MCAST6} ${NETIFS[p5]} 2 \
+		"Invalid gw - multicast address, VRF"
+
+	run_ip6 254 ${TEST_NET6[1]}::101 ${V6ADDRS[p1]} "" 2 \
+		"No nexthop device given"
+
+	# default VRF validation is done against LOCAL table
+	# run_ip6 254 ${TEST_NET6[1]}::102 ${V6ADDRS[p3]/::[0-9]/::64} ${NETIFS[p1]} 2 \
+	#	"Gateway resolves to wrong nexthop device"
+
+	run_ip6 ${VRF_TABLE} ${TEST_NET6[2]}::103 ${V6ADDRS[p7]/::[0-9]/::64} ${NETIFS[p5]} 2 \
+		"Gateway resolves to wrong nexthop device - VRF"
+}
+
+run_onlink_tests()
+{
+	log_section "IPv4 onlink"
+	log_subsection "Valid onlink commands"
+	valid_onlink_ipv4
+	log_subsection "Invalid onlink commands"
+	invalid_onlink_ipv4
+
+	log_section "IPv6 onlink"
+	log_subsection "Valid onlink commands"
+	valid_onlink_ipv6
+	log_subsection "Invalid onlink commands"
+	invalid_onlink_ipv6
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -p          Pause on fail
+        -v          verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+nsuccess=0
+nfail=0
+
+while getopts :t:pPhv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+cleanup
+setup
+run_onlink_tests
+cleanup
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
diff --git a/tools/testing/selftests/net/fib_nexthop_multiprefix.sh b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
new file mode 100755
index 000000000000..e85248609af4
--- /dev/null
+++ b/tools/testing/selftests/net/fib_nexthop_multiprefix.sh
@@ -0,0 +1,290 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Validate cached routes in fib{6}_nh that is used by multiple prefixes.
+# Validate a different # exception is generated in h0 for each remote host.
+#
+#               h1
+#            /
+#    h0 - r1 -  h2
+#            \
+#               h3
+#
+# routing in h0 to hN is done with nexthop objects.
+
+source lib.sh
+PAUSE_ON_FAIL=no
+VERBOSE=0
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+# helpers
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+	fi
+
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "$out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+################################################################################
+# config
+
+create_ns()
+{
+	local ns=${1}
+
+	ip netns exec ${ns} sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+	case ${ns} in
+	h*)
+		ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+		;;
+	r*)
+		ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+		ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+		;;
+	esac
+}
+
+setup()
+{
+	local ns
+	local i
+
+	#set -e
+
+	setup_ns h0 r1 h1 h2 h3
+	h[0]=$h0
+	h[1]=$h1
+	h[2]=$h2
+	h[3]=$h3
+	r[1]=$r1
+	for ns in ${h[0]} ${r[1]} ${h[1]} ${h[2]} ${h[3]}
+	do
+		create_ns ${ns}
+	done
+
+	#
+	# create interconnects
+	#
+
+	for i in 0 1 2 3
+	do
+		ip -netns ${h[$i]} li add eth0 type veth peer name r1h${i}
+		ip -netns ${h[$i]} li set eth0 up
+		ip -netns ${h[$i]} li set r1h${i} netns ${r[1]} name eth${i} up
+
+		ip -netns ${h[$i]}    addr add dev eth0 172.16.10${i}.1/24
+		ip -netns ${h[$i]} -6 addr add dev eth0 2001:db8:10${i}::1/64
+		ip -netns ${r[1]}    addr add dev eth${i} 172.16.10${i}.254/24
+		ip -netns ${r[1]} -6 addr add dev eth${i} 2001:db8:10${i}::64/64
+	done
+
+	ip -netns ${h[0]} nexthop add id 4 via 172.16.100.254 dev eth0
+	ip -netns ${h[0]} nexthop add id 6 via 2001:db8:100::64 dev eth0
+
+	# routing from ${h[0]} to h1-h3 and back
+	for i in 1 2 3
+	do
+		ip -netns ${h[0]}    ro add 172.16.10${i}.0/24 nhid 4
+		ip -netns ${h[$i]} ro add 172.16.100.0/24 via 172.16.10${i}.254
+
+		ip -netns ${h[0]}    -6 ro add 2001:db8:10${i}::/64 nhid 6
+		ip -netns ${h[$i]} -6 ro add 2001:db8:100::/64 via 2001:db8:10${i}::64
+	done
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo
+		echo "host 1 config"
+		ip -netns ${h[0]} li sh
+		ip -netns ${h[0]} ro sh
+		ip -netns ${h[0]} -6 ro sh
+	fi
+
+	#set +e
+}
+
+cleanup()
+{
+	cleanup_all_ns
+}
+
+change_mtu()
+{
+	local hostid=$1
+	local mtu=$2
+
+	run_cmd ip -netns h${hostid} li set eth0 mtu ${mtu}
+	run_cmd ip -netns ${r1} li set eth${hostid} mtu ${mtu}
+}
+
+################################################################################
+# validate exceptions
+
+validate_v4_exception()
+{
+	local i=$1
+	local mtu=$2
+	local ping_sz=$3
+	local dst="172.16.10${i}.1"
+	local h0_ip=172.16.100.1
+	local r1_ip=172.16.100.254
+	local rc
+
+	if [ ${ping_sz} != "0" ]; then
+		run_cmd ip netns exec ${h0} ping -s ${ping_sz} -c5 -w5 ${dst}
+	fi
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "Route get"
+		ip -netns ${h0} ro get ${dst}
+		echo "Searching for:"
+		echo "    cache .* mtu ${mtu}"
+		echo
+	fi
+
+	ip -netns ${h0} ro get ${dst} | \
+	grep -q "cache .* mtu ${mtu}"
+	rc=$?
+
+	log_test $rc 0 "IPv4: host 0 to host ${i}, mtu ${mtu}"
+}
+
+validate_v6_exception()
+{
+	local i=$1
+	local mtu=$2
+	local ping_sz=$3
+	local dst="2001:db8:10${i}::1"
+	local h0_ip=2001:db8:100::1
+	local r1_ip=2001:db8:100::64
+	local rc
+
+	if [ ${ping_sz} != "0" ]; then
+		run_cmd ip netns exec ${h0} ${ping6} -s ${ping_sz} -c5 -w5 ${dst}
+	fi
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "Route get"
+		ip -netns ${h0} -6 ro get ${dst}
+		echo "Searching for:"
+		echo "    ${dst}.* via ${r1_ip} dev eth0 src ${h0_ip} .* mtu ${mtu}"
+		echo
+	fi
+
+	ip -netns ${h0} -6 ro get ${dst} | \
+	grep -q "${dst}.* via ${r1_ip} dev eth0 src ${h0_ip} .* mtu ${mtu}"
+	rc=$?
+
+	log_test $rc 0 "IPv6: host 0 to host ${i}, mtu ${mtu}"
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=1;;
+	esac
+done
+
+cleanup
+setup
+sleep 2
+
+cpus=$(cat  /sys/devices/system/cpu/online)
+cpus="$(seq ${cpus/-/ })"
+ret=0
+for i in 1 2 3
+do
+	# generate a cached route per-cpu
+	for c in ${cpus}; do
+		run_cmd taskset -c ${c} ip netns exec ${h0} ping -c1 -w1 172.16.10${i}.1
+		[ $? -ne 0 ] && printf "\nERROR: ping to ${h[$i]} failed\n" && ret=1
+
+		run_cmd taskset -c ${c} ip netns exec ${h0} ${ping6} -c1 -w1 2001:db8:10${i}::1
+		[ $? -ne 0 ] && printf "\nERROR: ping6 to ${h[$i]} failed\n" && ret=1
+
+		[ $ret -ne 0 ] && break
+	done
+	[ $ret -ne 0 ] && break
+done
+
+if [ $ret -eq 0 ]; then
+	# generate different exceptions in h0 for h1, h2 and h3
+	change_mtu 1 1300
+	validate_v4_exception 1 1300 1350
+	validate_v6_exception 1 1300 1350
+	echo
+
+	change_mtu 2 1350
+	validate_v4_exception 2 1350 1400
+	validate_v6_exception 2 1350 1400
+	echo
+
+	change_mtu 3 1400
+	validate_v4_exception 3 1400 1450
+	validate_v6_exception 3 1400 1450
+	echo
+
+	validate_v4_exception 1 1300 0
+	validate_v6_exception 1 1300 0
+	echo
+
+	validate_v4_exception 2 1350 0
+	validate_v6_exception 2 1350 0
+	echo
+
+	validate_v4_exception 3 1400 0
+	validate_v6_exception 3 1400 0
+
+	# targeted deletes to trigger cleanup paths in kernel
+	ip -netns ${h0} ro del 172.16.102.0/24 nhid 4
+	ip -netns ${h0} -6 ro del 2001:db8:102::/64 nhid 6
+
+	ip -netns ${h0} nexthop del id 4
+	ip -netns ${h0} nexthop del id 6
+fi
+
+cleanup
diff --git a/tools/testing/selftests/net/fib_nexthop_nongw.sh b/tools/testing/selftests/net/fib_nexthop_nongw.sh
new file mode 100755
index 000000000000..1ccf56f10171
--- /dev/null
+++ b/tools/testing/selftests/net/fib_nexthop_nongw.sh
@@ -0,0 +1,115 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# ns: h1               | ns: h2
+#   192.168.0.1/24     |
+#            eth0      |
+#                      |       192.168.1.1/32
+#            veth0 <---|---> veth1
+# Validate source address selection for route without gateway
+
+source lib.sh
+PAUSE_ON_FAIL=no
+VERBOSE=0
+ret=0
+
+################################################################################
+# helpers
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+	fi
+
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "$out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+################################################################################
+# config
+setup()
+{
+	setup_ns h1 h2
+
+	# Add a fake eth0 to support an ip address
+	ip -n $h1 link add name eth0 type dummy
+	ip -n $h1 link set eth0 up
+	ip -n $h1 address add 192.168.0.1/24 dev eth0
+
+	# Configure veths (same @mac, arp off)
+	ip -n $h1 link add name veth0 type veth peer name veth1 netns $h2
+	ip -n $h1 link set veth0 up
+
+	ip -n $h2 link set veth1 up
+
+	# Configure @IP in the peer netns
+	ip -n $h2 address add 192.168.1.1/32 dev veth1
+	ip -n $h2 route add default dev veth1
+
+	# Add a nexthop without @gw and use it in a route
+	ip -n $h1 nexthop add id 1 dev veth0
+	ip -n $h1 route add 192.168.1.1 nhid 1
+}
+
+cleanup()
+{
+	cleanup_ns $h1 $h2
+}
+
+trap cleanup EXIT
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=1;;
+	esac
+done
+
+setup
+
+run_cmd ip -netns $h1 route get 192.168.1.1
+log_test $? 0 "nexthop: get route with nexthop without gw"
+run_cmd ip netns exec $h1 ping -c1 192.168.1.1
+log_test $? 0 "nexthop: ping through nexthop without gw"
+
+exit $ret
diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
new file mode 100755
index 000000000000..2b0a90581e2f
--- /dev/null
+++ b/tools/testing/selftests/net/fib_nexthops.sh
@@ -0,0 +1,2576 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# ns: me               | ns: peer              | ns: remote
+#   2001:db8:91::1     |       2001:db8:91::2  |
+#   172.16.1.1         |       172.16.1.2      |
+#            veth1 <---|---> veth2             |
+#                      |              veth5 <--|--> veth6  172.16.101.1
+#            veth3 <---|---> veth4             |           2001:db8:101::1
+#   172.16.2.1         |       172.16.2.2      |
+#   2001:db8:92::1     |       2001:db8:92::2  |
+#
+# This test is for checking IPv4 and IPv6 FIB behavior with nexthop
+# objects. Device reference counts and network namespace cleanup tested
+# by use of network namespace for peer.
+
+source lib.sh
+ret=0
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# all tests in this script. Can be overridden with -t option
+IPV4_TESTS="
+	ipv4_fcnal
+	ipv4_grp_fcnal
+	ipv4_res_grp_fcnal
+	ipv4_withv6_fcnal
+	ipv4_fcnal_runtime
+	ipv4_large_grp
+	ipv4_large_res_grp
+	ipv4_compat_mode
+	ipv4_fdb_grp_fcnal
+	ipv4_mpath_select
+	ipv4_torture
+	ipv4_res_torture
+"
+
+IPV6_TESTS="
+	ipv6_fcnal
+	ipv6_grp_fcnal
+	ipv6_res_grp_fcnal
+	ipv6_fcnal_runtime
+	ipv6_large_grp
+	ipv6_large_res_grp
+	ipv6_compat_mode
+	ipv6_fdb_grp_fcnal
+	ipv6_mpath_select
+	ipv6_torture
+	ipv6_res_torture
+"
+
+ALL_TESTS="
+	basic
+	basic_res
+	${IPV4_TESTS}
+	${IPV6_TESTS}
+"
+TESTS="${ALL_TESTS}"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+PING_TIMEOUT=5
+
+nsid=100
+
+################################################################################
+# utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		if [[ $rc -eq $ksft_skip ]]; then
+			[[ $ret -eq 0 ]] && ret=$ksft_skip
+			nskip=$((nskip+1))
+			printf "TEST: %-60s  [SKIP]\n" "${msg}"
+		else
+			ret=1
+			nfail=$((nfail+1))
+			printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		fi
+
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+get_linklocal()
+{
+	local dev=$1
+	local ns
+	local addr
+
+	[ -n "$2" ] && ns="-netns $2"
+	addr=$(ip $ns -6 -br addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+create_ns()
+{
+	local n=${1}
+
+	set -e
+
+	ip netns exec ${n} sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec ${n} sysctl -qw net.ipv4.fib_multipath_use_neigh=1
+	ip netns exec ${n} sysctl -qw net.ipv4.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${n} sysctl -qw net.ipv6.conf.default.accept_dad=0
+
+	set +e
+}
+
+setup()
+{
+	cleanup
+
+	setup_ns me peer remote
+	create_ns $me
+	create_ns $peer
+	create_ns $remote
+
+	IP="ip -netns $me"
+	BRIDGE="bridge -netns $me"
+	set -e
+	$IP li add veth1 type veth peer name veth2
+	$IP li set veth1 up
+	$IP addr add 172.16.1.1/24 dev veth1
+	$IP -6 addr add 2001:db8:91::1/64 dev veth1 nodad
+
+	$IP li add veth3 type veth peer name veth4
+	$IP li set veth3 up
+	$IP addr add 172.16.2.1/24 dev veth3
+	$IP -6 addr add 2001:db8:92::1/64 dev veth3 nodad
+
+	$IP li set veth2 netns $peer up
+	ip -netns $peer addr add 172.16.1.2/24 dev veth2
+	ip -netns $peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad
+
+	$IP li set veth4 netns $peer up
+	ip -netns $peer addr add 172.16.2.2/24 dev veth4
+	ip -netns $peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad
+
+	ip -netns $remote li add veth5 type veth peer name veth6
+	ip -netns $remote li set veth5 up
+	ip -netns $remote addr add dev veth5 172.16.101.1/24
+	ip -netns $remote -6 addr add dev veth5 2001:db8:101::1/64 nodad
+	ip -netns $remote ro add 172.16.0.0/22 via 172.16.101.2
+	ip -netns $remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2
+
+	ip -netns $remote li set veth6 netns $peer up
+	ip -netns $peer addr add dev veth6 172.16.101.2/24
+	ip -netns $peer -6 addr add dev veth6 2001:db8:101::2/64 nodad
+	set +e
+}
+
+cleanup()
+{
+	local ns
+
+	for ns in $me $peer $remote; do
+		ip netns del ${ns} 2>/dev/null
+	done
+}
+
+check_output()
+{
+	local out="$1"
+	local expected="$2"
+	local rc=0
+
+	[ "${out}" = "${expected}" ] && return 0
+
+	if [ -z "${out}" ]; then
+		if [ "$VERBOSE" = "1" ]; then
+			printf "\nNo entry found\n"
+			printf "Expected:\n"
+			printf "    ${expected}\n"
+		fi
+		return 1
+	fi
+
+	out=$(echo ${out})
+	if [ "${out}" != "${expected}" ]; then
+		rc=1
+		if [ "${VERBOSE}" = "1" ]; then
+			printf "    Unexpected entry. Have:\n"
+			printf "        ${out}\n"
+			printf "    Expected:\n"
+			printf "        ${expected}\n\n"
+		else
+			echo "      WARNING: Unexpected route entry"
+		fi
+	fi
+
+	return $rc
+}
+
+check_nexthop()
+{
+	local nharg="$1"
+	local expected="$2"
+	local out
+
+	out=$($IP nexthop ls ${nharg} 2>/dev/null)
+
+	check_output "${out}" "${expected}"
+}
+
+check_nexthop_bucket()
+{
+	local nharg="$1"
+	local expected="$2"
+	local out
+
+	# remove the idle time since we cannot match it
+	out=$($IP nexthop bucket ${nharg} \
+		| sed s/idle_time\ [0-9.]*\ // 2>/dev/null)
+
+	check_output "${out}" "${expected}"
+}
+
+check_route()
+{
+	local pfx="$1"
+	local expected="$2"
+	local out
+
+	out=$($IP route ls match ${pfx} 2>/dev/null)
+
+	check_output "${out}" "${expected}"
+}
+
+check_route6()
+{
+	local pfx="$1"
+	local expected="$2"
+	local out
+
+	out=$($IP -6 route ls match ${pfx} 2>/dev/null | sed -e 's/pref medium//')
+
+	check_output "${out}" "${expected}"
+}
+
+check_large_grp()
+{
+	local ipv=$1
+	local ecmp=$2
+	local grpnum=100
+	local nhidstart=100
+	local grpidstart=1000
+	local iter=0
+	local nhidstr=""
+	local grpidstr=""
+	local grpstr=""
+	local ipstr=""
+
+	if [ $ipv -eq 4 ]; then
+		ipstr="172.16.1."
+	else
+		ipstr="2001:db8:91::"
+	fi
+
+	#
+	# Create $grpnum groups with specified $ecmp and dump them
+	#
+
+	# create nexthops with different gateways
+	iter=2
+	while [ $iter -le $(($ecmp + 1)) ]
+	do
+		nhidstr="$(($nhidstart + $iter))"
+		run_cmd "$IP nexthop add id $nhidstr via $ipstr$iter dev veth1"
+		check_nexthop "id $nhidstr" "id $nhidstr via $ipstr$iter dev veth1 scope link"
+
+		if [ $iter -le $ecmp ]; then
+			grpstr+="$nhidstr/"
+		else
+			grpstr+="$nhidstr"
+		fi
+		((iter++))
+	done
+
+	# create duplicate large ecmp groups
+	iter=0
+	while [ $iter -le $grpnum ]
+	do
+		grpidstr="$(($grpidstart + $iter))"
+		run_cmd "$IP nexthop add id $grpidstr group $grpstr"
+		check_nexthop "id $grpidstr" "id $grpidstr group $grpstr"
+		((iter++))
+	done
+
+	# dump large groups
+	run_cmd "$IP nexthop list"
+	log_test $? 0 "Dump large (x$ecmp) ecmp groups"
+}
+
+check_large_res_grp()
+{
+	local ipv=$1
+	local buckets=$2
+	local ipstr=""
+
+	if [ $ipv -eq 4 ]; then
+		ipstr="172.16.1.2"
+	else
+		ipstr="2001:db8:91::2"
+	fi
+
+	# create a resilient group with $buckets buckets and dump them
+	run_cmd "$IP nexthop add id 100 via $ipstr dev veth1"
+	run_cmd "$IP nexthop add id 1000 group 100 type resilient buckets $buckets"
+	run_cmd "$IP nexthop bucket list"
+	log_test $? 0 "Dump large (x$buckets) nexthop buckets"
+}
+
+get_route_dev()
+{
+	local pfx="$1"
+	local out
+
+	if out=$($IP -j route get "$pfx" | jq -re ".[0].dev"); then
+		echo "$out"
+	fi
+}
+
+check_route_dev()
+{
+	local pfx="$1"
+	local expected="$2"
+	local out
+
+	out=$(get_route_dev "$pfx")
+
+	check_output "$out" "$expected"
+}
+
+start_ip_monitor()
+{
+	local mtype=$1
+
+	# start the monitor in the background
+	tmpfile=`mktemp /var/run/nexthoptestXXX`
+	mpid=`($IP monitor $mtype > $tmpfile & echo $!) 2>/dev/null`
+	sleep 0.2
+	echo "$mpid $tmpfile"
+}
+
+stop_ip_monitor()
+{
+	local mpid=$1
+	local tmpfile=$2
+	local el=$3
+
+	# check the monitor results
+	kill $mpid
+	lines=`wc -l $tmpfile | cut "-d " -f1`
+	test $lines -eq $el
+	rc=$?
+	rm -rf $tmpfile
+
+	return $rc
+}
+
+check_nexthop_fdb_support()
+{
+	$IP nexthop help 2>&1 | grep -q fdb
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 too old, missing fdb nexthop support"
+		return $ksft_skip
+	fi
+}
+
+check_nexthop_res_support()
+{
+	$IP nexthop help 2>&1 | grep -q resilient
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 too old, missing resilient nexthop group support"
+		return $ksft_skip
+	fi
+}
+
+ipv6_fdb_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv6 fdb groups functional"
+	echo "--------------------------"
+
+	check_nexthop_fdb_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	# create group with multiple nexthops
+	run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 fdb"
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::3 fdb"
+	run_cmd "$IP nexthop add id 102 group 61/62 fdb"
+	check_nexthop "id 102" "id 102 group 61/62 fdb"
+	log_test $? 0 "Fdb Nexthop group with multiple nexthops"
+
+	## get nexthop group
+	run_cmd "$IP nexthop get id 102"
+	check_nexthop "id 102" "id 102 group 61/62 fdb"
+	log_test $? 0 "Get Fdb nexthop group by id"
+
+	# fdb nexthop group can only contain fdb nexthops
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::5 dev veth1"
+	run_cmd "$IP nexthop add id 103 group 63/64 fdb"
+	log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
+
+	# Non fdb nexthop group can not contain fdb nexthops
+	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 fdb"
+	run_cmd "$IP nexthop add id 66 via 2001:db8:91::6 fdb"
+	run_cmd "$IP nexthop add id 104 group 65/66"
+	log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
+
+	# fdb nexthop cannot have blackhole
+	run_cmd "$IP nexthop add id 67 blackhole fdb"
+	log_test $? 2 "Fdb Nexthop with blackhole"
+
+	# fdb nexthop with oif
+	run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 dev veth1 fdb"
+	log_test $? 2 "Fdb Nexthop with oif"
+
+	# fdb nexthop with onlink
+	run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 onlink fdb"
+	log_test $? 2 "Fdb Nexthop with onlink"
+
+	# fdb nexthop with encap
+	run_cmd "$IP nexthop add id 69 encap mpls 101 via 2001:db8:91::8 dev veth1 fdb"
+	log_test $? 2 "Fdb Nexthop with encap"
+
+	# Replace FDB nexthop to non-FDB and vice versa
+	run_cmd "$IP nexthop add id 70 via 2001:db8:91::2 fdb"
+	run_cmd "$IP nexthop replace id 70 via 2001:db8:91::2 dev veth1"
+	log_test $? 0 "Replace FDB nexthop to non-FDB nexthop"
+	run_cmd "$IP nexthop replace id 70 via 2001:db8:91::2 fdb"
+	log_test $? 0 "Replace non-FDB nexthop to FDB nexthop"
+
+	# Replace FDB nexthop address while in a group
+	run_cmd "$IP nexthop add id 71 group 70 fdb"
+	run_cmd "$IP nexthop replace id 70 via 2001:db8:91::3 fdb"
+	log_test $? 0 "Replace FDB nexthop address while in a group"
+
+	# Cannot replace FDB nexthop to non-FDB and vice versa while in a group
+	run_cmd "$IP nexthop replace id 70 via 2001:db8:91::2 dev veth1"
+	log_test $? 2 "Replace FDB nexthop to non-FDB nexthop while in a group"
+	run_cmd "$IP nexthop add id 72 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 73 group 72"
+	run_cmd "$IP nexthop replace id 72 via 2001:db8:91::2 fdb"
+	log_test $? 2 "Replace non-FDB nexthop to FDB nexthop while in a group"
+
+	run_cmd "$IP link add name vx10 type vxlan id 1010 local 2001:db8:91::9 remote 2001:db8:91::10 dstport 4789 nolearning noudpcsum tos inherit ttl 100"
+	run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
+	log_test $? 0 "Fdb mac add with nexthop group"
+
+	## fdb nexthops can only reference nexthop groups and not nexthops
+	run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 61 self"
+	log_test $? 255 "Fdb mac add with nexthop"
+
+	run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 66"
+	log_test $? 2 "Route add with fdb nexthop"
+
+	run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 103"
+	log_test $? 2 "Route add with fdb nexthop group"
+
+	run_cmd "$IP nexthop del id 61"
+	run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+	log_test $? 0 "Fdb entry after deleting a single nexthop"
+
+	run_cmd "$IP nexthop del id 102"
+	log_test $? 0 "Fdb nexthop delete"
+
+	run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+	log_test $? 254 "Fdb entry after deleting a nexthop group"
+
+	$IP link del dev vx10
+}
+
+ipv4_fdb_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv4 fdb groups functional"
+	echo "--------------------------"
+
+	check_nexthop_fdb_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	# create group with multiple nexthops
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 fdb"
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 fdb"
+	run_cmd "$IP nexthop add id 102 group 12/13 fdb"
+	check_nexthop "id 102" "id 102 group 12/13 fdb"
+	log_test $? 0 "Fdb Nexthop group with multiple nexthops"
+
+	# get nexthop group
+	run_cmd "$IP nexthop get id 102"
+	check_nexthop "id 102" "id 102 group 12/13 fdb"
+	log_test $? 0 "Get Fdb nexthop group by id"
+
+	# fdb nexthop group can only contain fdb nexthops
+	run_cmd "$IP nexthop add id 14 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 15 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 103 group 14/15 fdb"
+	log_test $? 2 "Fdb Nexthop group with non-fdb nexthops"
+
+	# Non fdb nexthop group can not contain fdb nexthops
+	run_cmd "$IP nexthop add id 16 via 172.16.1.2 fdb"
+	run_cmd "$IP nexthop add id 17 via 172.16.1.3 fdb"
+	run_cmd "$IP nexthop add id 104 group 16/17"
+	log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops"
+
+	# fdb nexthop cannot have blackhole
+	run_cmd "$IP nexthop add id 18 blackhole fdb"
+	log_test $? 2 "Fdb Nexthop with blackhole"
+
+	# fdb nexthop with oif
+	run_cmd "$IP nexthop add id 16 via 172.16.1.2 dev veth1 fdb"
+	log_test $? 2 "Fdb Nexthop with oif"
+
+	# fdb nexthop with onlink
+	run_cmd "$IP nexthop add id 16 via 172.16.1.2 onlink fdb"
+	log_test $? 2 "Fdb Nexthop with onlink"
+
+	# fdb nexthop with encap
+	run_cmd "$IP nexthop add id 17 encap mpls 101 via 172.16.1.2 dev veth1 fdb"
+	log_test $? 2 "Fdb Nexthop with encap"
+
+	# Replace FDB nexthop to non-FDB and vice versa
+	run_cmd "$IP nexthop add id 18 via 172.16.1.2 fdb"
+	run_cmd "$IP nexthop replace id 18 via 172.16.1.2 dev veth1"
+	log_test $? 0 "Replace FDB nexthop to non-FDB nexthop"
+	run_cmd "$IP nexthop replace id 18 via 172.16.1.2 fdb"
+	log_test $? 0 "Replace non-FDB nexthop to FDB nexthop"
+
+	# Replace FDB nexthop address while in a group
+	run_cmd "$IP nexthop add id 19 group 18 fdb"
+	run_cmd "$IP nexthop replace id 18 via 172.16.1.3 fdb"
+	log_test $? 0 "Replace FDB nexthop address while in a group"
+
+	# Cannot replace FDB nexthop to non-FDB and vice versa while in a group
+	run_cmd "$IP nexthop replace id 18 via 172.16.1.2 dev veth1"
+	log_test $? 2 "Replace FDB nexthop to non-FDB nexthop while in a group"
+	run_cmd "$IP nexthop add id 20 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 21 group 20"
+	run_cmd "$IP nexthop replace id 20 via 172.16.1.2 fdb"
+	log_test $? 2 "Replace non-FDB nexthop to FDB nexthop while in a group"
+
+	run_cmd "$IP link add name vx10 type vxlan id 1010 local 10.0.0.1 remote 10.0.0.2 dstport 4789 nolearning noudpcsum tos inherit ttl 100"
+	run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self"
+	log_test $? 0 "Fdb mac add with nexthop group"
+
+	# fdb nexthops can only reference nexthop groups and not nexthops
+	run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 12 self"
+	log_test $? 255 "Fdb mac add with nexthop"
+
+	run_cmd "$IP ro add 172.16.0.0/22 nhid 16"
+	log_test $? 2 "Route add with fdb nexthop"
+
+	run_cmd "$IP ro add 172.16.0.0/22 nhid 103"
+	log_test $? 2 "Route add with fdb nexthop group"
+
+	run_cmd "$IP nexthop del id 12"
+	run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+	log_test $? 0 "Fdb entry after deleting a single nexthop"
+
+	run_cmd "$IP nexthop del id 102"
+	log_test $? 0 "Fdb nexthop delete"
+
+	run_cmd "$BRIDGE fdb get to 02:02:00:00:00:13 dev vx10 self"
+	log_test $? 254 "Fdb entry after deleting a nexthop group"
+
+	$IP link del dev vx10
+}
+
+ipv4_mpath_select()
+{
+	local rc dev match h addr
+
+	echo
+	echo "IPv4 multipath selection"
+	echo "------------------------"
+	if [ ! -x "$(command -v jq)" ]; then
+		echo "SKIP: Could not run test; need jq tool"
+		return $ksft_skip
+	fi
+
+	# Use status of existing neighbor entry when determining nexthop for
+	# multipath routes.
+	local -A gws
+	gws=([veth1]=172.16.1.2 [veth3]=172.16.2.2)
+	local -A other_dev
+	other_dev=([veth1]=veth3 [veth3]=veth1)
+
+	run_cmd "$IP nexthop add id 1 via ${gws["veth1"]} dev veth1"
+	run_cmd "$IP nexthop add id 2 via ${gws["veth3"]} dev veth3"
+	run_cmd "$IP nexthop add id 1001 group 1/2"
+	run_cmd "$IP ro add 172.16.101.0/24 nhid 1001"
+	rc=0
+	for dev in veth1 veth3; do
+		match=0
+		for h in {1..254}; do
+			addr="172.16.101.$h"
+			if [ "$(get_route_dev "$addr")" = "$dev" ]; then
+				match=1
+				break
+			fi
+		done
+		if (( match == 0 )); then
+			echo "SKIP: Did not find a route using device $dev"
+			return $ksft_skip
+		fi
+		run_cmd "$IP neigh add ${gws[$dev]} dev $dev nud failed"
+		if ! check_route_dev "$addr" "${other_dev[$dev]}"; then
+			rc=1
+			break
+		fi
+		run_cmd "$IP neigh del ${gws[$dev]} dev $dev"
+	done
+	log_test $rc 0 "Use valid neighbor during multipath selection"
+
+	run_cmd "$IP neigh add 172.16.1.2 dev veth1 nud incomplete"
+	run_cmd "$IP neigh add 172.16.2.2 dev veth3 nud incomplete"
+	run_cmd "$IP route get 172.16.101.1"
+	# if we did not crash, success
+	log_test $rc 0 "Multipath selection with no valid neighbor"
+}
+
+ipv6_mpath_select()
+{
+	local rc dev match h addr
+
+	echo
+	echo "IPv6 multipath selection"
+	echo "------------------------"
+	if [ ! -x "$(command -v jq)" ]; then
+		echo "SKIP: Could not run test; need jq tool"
+		return $ksft_skip
+	fi
+
+	# Use status of existing neighbor entry when determining nexthop for
+	# multipath routes.
+	local -A gws
+	gws=([veth1]=2001:db8:91::2 [veth3]=2001:db8:92::2)
+	local -A other_dev
+	other_dev=([veth1]=veth3 [veth3]=veth1)
+
+	run_cmd "$IP nexthop add id 1 via ${gws["veth1"]} dev veth1"
+	run_cmd "$IP nexthop add id 2 via ${gws["veth3"]} dev veth3"
+	run_cmd "$IP nexthop add id 1001 group 1/2"
+	run_cmd "$IP ro add 2001:db8:101::/64 nhid 1001"
+	rc=0
+	for dev in veth1 veth3; do
+		match=0
+		for h in {1..65535}; do
+			addr=$(printf "2001:db8:101::%x" $h)
+			if [ "$(get_route_dev "$addr")" = "$dev" ]; then
+				match=1
+				break
+			fi
+		done
+		if (( match == 0 )); then
+			echo "SKIP: Did not find a route using device $dev"
+			return $ksft_skip
+		fi
+		run_cmd "$IP neigh add ${gws[$dev]} dev $dev nud failed"
+		if ! check_route_dev "$addr" "${other_dev[$dev]}"; then
+			rc=1
+			break
+		fi
+		run_cmd "$IP neigh del ${gws[$dev]} dev $dev"
+	done
+	log_test $rc 0 "Use valid neighbor during multipath selection"
+
+	run_cmd "$IP neigh add 2001:db8:91::2 dev veth1 nud incomplete"
+	run_cmd "$IP neigh add 2001:db8:92::2 dev veth3 nud incomplete"
+	run_cmd "$IP route get 2001:db8:101::1"
+	# if we did not crash, success
+	log_test $rc 0 "Multipath selection with no valid neighbor"
+}
+
+################################################################################
+# basic operations (add, delete, replace) on nexthops and nexthop groups
+#
+# IPv6
+
+ipv6_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv6"
+	echo "----------------------"
+
+	run_cmd "$IP nexthop add id 52 via 2001:db8:91::2 dev veth1"
+	rc=$?
+	log_test $rc 0 "Create nexthop with id, gw, dev"
+	if [ $rc -ne 0 ]; then
+		echo "Basic IPv6 create fails; can not continue"
+		return 1
+	fi
+
+	run_cmd "$IP nexthop get id 52"
+	log_test $? 0 "Get nexthop by id"
+	check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1 scope link"
+
+	run_cmd "$IP nexthop del id 52"
+	log_test $? 0 "Delete nexthop by id"
+	check_nexthop "id 52" ""
+
+	#
+	# gw, device spec
+	#
+	# gw validation, no device - fails since dev required
+	run_cmd "$IP nexthop add id 52 via 2001:db8:92::3"
+	log_test $? 2 "Create nexthop - gw only"
+
+	# gw is not reachable through given dev
+	run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1"
+	log_test $? 2 "Create nexthop - invalid gw+dev combination"
+
+	# onlink arg overrides gw+dev lookup
+	run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1 onlink"
+	log_test $? 0 "Create nexthop - gw+dev and onlink"
+
+	# admin down should delete nexthops
+	set -e
+	run_cmd "$IP -6 nexthop add id 55 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 56 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 57 via 2001:db8:91::5 dev veth1"
+	run_cmd "$IP li set dev veth1 down"
+	set +e
+	check_nexthop "dev veth1" ""
+	log_test $? 0 "Nexthops removed on admin down"
+}
+
+ipv6_grp_refs()
+{
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "SKIP: Could not run test; need mausezahn tool"
+		return
+	fi
+
+	run_cmd "$IP link set dev veth1 up"
+	run_cmd "$IP link add veth1.10 link veth1 up type vlan id 10"
+	run_cmd "$IP link add veth1.20 link veth1 up type vlan id 20"
+	run_cmd "$IP -6 addr add 2001:db8:91::1/64 dev veth1.10"
+	run_cmd "$IP -6 addr add 2001:db8:92::1/64 dev veth1.20"
+	run_cmd "$IP -6 neigh add 2001:db8:91::2 lladdr 00:11:22:33:44:55 dev veth1.10"
+	run_cmd "$IP -6 neigh add 2001:db8:92::2 lladdr 00:11:22:33:44:55 dev veth1.20"
+	run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1.10"
+	run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth1.20"
+	run_cmd "$IP nexthop add id 102 group 100"
+	run_cmd "$IP route add 2001:db8:101::1/128 nhid 102"
+
+	# create per-cpu dsts through nh 100
+	run_cmd "ip netns exec $me mausezahn -6 veth1.10 -B 2001:db8:101::1 -A 2001:db8:91::1 -c 5 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1"
+
+	# remove nh 100 from the group to delete the route potentially leaving
+	# a stale per-cpu dst which holds a reference to the nexthop's net
+	# device and to the IPv6 route
+	run_cmd "$IP nexthop replace id 102 group 101"
+	run_cmd "$IP route del 2001:db8:101::1/128"
+
+	# add both nexthops to the group so a reference is taken on them
+	run_cmd "$IP nexthop replace id 102 group 100/101"
+
+	# if the bug described in commit "net: nexthop: release IPv6 per-cpu
+	# dsts when replacing a nexthop group" exists at this point we have
+	# an unlinked IPv6 route (but not freed due to stale dst) with a
+	# reference over the group so we delete the group which will again
+	# only unlink it due to the route reference
+	run_cmd "$IP nexthop del id 102"
+
+	# delete the nexthop with stale dst, since we have an unlinked
+	# group with a ref to it and an unlinked IPv6 route with ref to the
+	# group, the nh will only be unlinked and not freed so the stale dst
+	# remains forever and we get a net device refcount imbalance
+	run_cmd "$IP nexthop del id 100"
+
+	# if a reference was lost this command will hang because the net device
+	# cannot be removed
+	timeout -s KILL 5 ip netns exec $me ip link del veth1.10 >/dev/null 2>&1
+
+	# we can't cleanup if the command is hung trying to delete the netdev
+	if [ $? -eq 137 ]; then
+		return 1
+	fi
+
+	# cleanup
+	run_cmd "$IP link del veth1.20"
+	run_cmd "$IP nexthop flush"
+
+	return 0
+}
+
+ipv6_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv6 groups functional"
+	echo "----------------------"
+
+	# basic functionality: create a nexthop group, default weight
+	run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 101 group 61"
+	log_test $? 0 "Create nexthop group with single nexthop"
+
+	# get nexthop group
+	run_cmd "$IP nexthop get id 101"
+	log_test $? 0 "Get nexthop group by id"
+	check_nexthop "id 101" "id 101 group 61"
+
+	# delete nexthop group
+	run_cmd "$IP nexthop del id 101"
+	log_test $? 0 "Delete nexthop group by id"
+	check_nexthop "id 101" ""
+
+	$IP nexthop flush >/dev/null 2>&1
+	check_nexthop "id 101" ""
+
+	#
+	# create group with multiple nexthops - mix of gw and dev only
+	#
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 65 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 62/63/64/65"
+	log_test $? 0 "Nexthop group with multiple nexthops"
+	check_nexthop "id 102" "id 102 group 62/63/64/65"
+
+	# Delete nexthop in a group and group is updated
+	run_cmd "$IP nexthop del id 63"
+	check_nexthop "id 102" "id 102 group 62/64/65"
+	log_test $? 0 "Nexthop group updated when entry is deleted"
+
+	# create group with multiple weighted nexthops
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 103 group 62/63,2/64,3/65,4"
+	log_test $? 0 "Nexthop group with weighted nexthops"
+	check_nexthop "id 103" "id 103 group 62/63,2/64,3/65,4"
+
+	# Delete nexthop in a weighted group and group is updated
+	run_cmd "$IP nexthop del id 63"
+	check_nexthop "id 103" "id 103 group 62/64,3/65,4"
+	log_test $? 0 "Weighted nexthop group updated when entry is deleted"
+
+	# admin down - nexthop is removed from group
+	run_cmd "$IP li set dev veth1 down"
+	check_nexthop "dev veth1" ""
+	log_test $? 0 "Nexthops in groups removed on admin down"
+
+	# expect groups to have been deleted as well
+	check_nexthop "" ""
+
+	run_cmd "$IP li set dev veth1 up"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	# group with nexthops using different devices
+	set -e
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"
+
+	run_cmd "$IP nexthop add id 72 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 73 via 2001:db8:92::3 dev veth3"
+	run_cmd "$IP nexthop add id 74 via 2001:db8:92::4 dev veth3"
+	run_cmd "$IP nexthop add id 75 via 2001:db8:92::5 dev veth3"
+	set +e
+
+	# multiple groups with same nexthop
+	run_cmd "$IP nexthop add id 104 group 62"
+	run_cmd "$IP nexthop add id 105 group 62"
+	check_nexthop "group" "id 104 group 62 id 105 group 62"
+	log_test $? 0 "Multiple groups with same nexthop"
+
+	run_cmd "$IP nexthop flush groups"
+	[ $? -ne 0 ] && return 1
+
+	# on admin down of veth1, it should be removed from the group
+	run_cmd "$IP nexthop add id 105 group 62/63/72/73/64"
+	run_cmd "$IP li set veth1 down"
+	check_nexthop "id 105" "id 105 group 72/73"
+	log_test $? 0 "Nexthops in group removed on admin down - mixed group"
+
+	run_cmd "$IP nexthop add id 106 group 105/74"
+	log_test $? 2 "Nexthop group can not have a group as an entry"
+
+	# a group can have a blackhole entry only if it is the only
+	# nexthop in the group. Needed for atomic replace with an
+	# actual nexthop group
+	run_cmd "$IP -6 nexthop add id 31 blackhole"
+	run_cmd "$IP nexthop add id 107 group 31"
+	log_test $? 0 "Nexthop group with a blackhole entry"
+
+	run_cmd "$IP nexthop add id 108 group 31/24"
+	log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
+
+	ipv6_grp_refs
+	log_test $? 0 "Nexthop group replace refcounts"
+
+	#
+	# 16-bit weights.
+	#
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"
+	run_cmd "$IP nexthop add id 66 dev veth1"
+
+	run_cmd "$IP nexthop add id 103 group 62,1000"
+	if [[ $? == 0 ]]; then
+		local GRP="id 103 group 62,254/63,255/64,256/65,257/66,65535"
+		run_cmd "$IP nexthop replace $GRP"
+		check_nexthop "id 103" "$GRP"
+		rc=$?
+	else
+		rc=$ksft_skip
+	fi
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	log_test $rc 0 "16-bit weights"
+}
+
+ipv6_res_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv6 resilient groups functional"
+	echo "--------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	#
+	# migration of nexthop buckets - equal weights
+	#
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 62/63 type resilient buckets 2 idle_timer 0"
+
+	run_cmd "$IP nexthop del id 63"
+	check_nexthop "id 102" \
+		"id 102 group 62 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated when entry is deleted"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 62 id 102 index 1 nhid 62"
+	log_test $? 0 "Nexthop buckets updated when entry is deleted"
+
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop replace id 102 group 62/63 type resilient buckets 2 idle_timer 0"
+	check_nexthop "id 102" \
+		"id 102 group 62/63 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated after replace"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 63 id 102 index 1 nhid 62"
+	log_test $? 0 "Nexthop buckets updated after replace"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	#
+	# migration of nexthop buckets - unequal weights
+	#
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 62,3/63,1 type resilient buckets 4 idle_timer 0"
+
+	run_cmd "$IP nexthop del id 63"
+	check_nexthop "id 102" \
+		"id 102 group 62,3 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated when entry is deleted - nECMP"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 62 id 102 index 1 nhid 62 id 102 index 2 nhid 62 id 102 index 3 nhid 62"
+	log_test $? 0 "Nexthop buckets updated when entry is deleted - nECMP"
+
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop replace id 102 group 62,3/63,1 type resilient buckets 4 idle_timer 0"
+	check_nexthop "id 102" \
+		"id 102 group 62,3/63 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated after replace - nECMP"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 63 id 102 index 1 nhid 62 id 102 index 2 nhid 62 id 102 index 3 nhid 62"
+	log_test $? 0 "Nexthop buckets updated after replace - nECMP"
+
+	#
+	# 16-bit weights.
+	#
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1"
+	run_cmd "$IP nexthop add id 66 dev veth1"
+
+	run_cmd "$IP nexthop add id 103 group 62,1000 type resilient buckets 32"
+	if [[ $? == 0 ]]; then
+		local GRP="id 103 group 62,254/63,255/64,256/65,257/66,65535 $(:
+			  )type resilient buckets 32 idle_timer 0 $(:
+			  )unbalanced_timer 0"
+		run_cmd "$IP nexthop replace $GRP"
+		check_nexthop "id 103" "$GRP unbalanced_time 0"
+		rc=$?
+	else
+		rc=$ksft_skip
+	fi
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	log_test $rc 0 "16-bit weights"
+}
+
+ipv6_fcnal_runtime()
+{
+	local rc
+
+	echo
+	echo "IPv6 functional runtime"
+	echo "-----------------------"
+
+	#
+	# IPv6 - the basics
+	#
+	run_cmd "$IP nexthop add id 81 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+	log_test $? 0 "Route add"
+
+	run_cmd "$IP ro delete 2001:db8:101::1/128 nhid 81"
+	log_test $? 0 "Route delete"
+
+	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 0 "Ping with nexthop"
+
+	run_cmd "$IP nexthop add id 82 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 122 group 81/82"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 0 "Ping - multipath"
+
+	#
+	# IPv6 with blackhole nexthops
+	#
+	run_cmd "$IP -6 nexthop add id 83 blackhole"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 83"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 2 "Ping - blackhole"
+
+	run_cmd "$IP nexthop replace id 83 via 2001:db8:91::2 dev veth1"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 0 "Ping - blackhole replaced with gateway"
+
+	run_cmd "$IP -6 nexthop replace id 83 blackhole"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 2 "Ping - gateway replaced by blackhole"
+
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	if [ $? -eq 0 ]; then
+		run_cmd "$IP nexthop replace id 122 group 83"
+		run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+		log_test $? 2 "Ping - group with blackhole"
+
+		run_cmd "$IP nexthop replace id 122 group 81/82"
+		run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+		log_test $? 0 "Ping - group blackhole replaced with gateways"
+	else
+		log_test 2 0 "Ping - multipath failed"
+	fi
+
+	#
+	# device only and gw + dev only mix
+	#
+	run_cmd "$IP -6 nexthop add id 85 dev veth1"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 85"
+	log_test $? 0 "IPv6 route with device only nexthop"
+	check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1 metric 1024"
+
+	run_cmd "$IP nexthop add id 123 group 81/85"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123"
+	log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw"
+	check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 123 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop dev veth1 weight 1"
+
+	#
+	# IPv6 route with v4 nexthop - not allowed
+	#
+	run_cmd "$IP ro delete 2001:db8:101::1/128"
+	run_cmd "$IP nexthop add id 84 via 172.16.1.1 dev veth1"
+	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 84"
+	log_test $? 2 "IPv6 route can not have a v4 gateway"
+
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 81"
+	run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
+	log_test $? 2 "Nexthop replace - v6 route, v4 nexthop"
+
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122"
+	run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1"
+	log_test $? 2 "Nexthop replace of group entry - v6 route, v4 nexthop"
+
+	run_cmd "$IP nexthop add id 86 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop add id 124 group 86/87/88"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop del id 88"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop del id 87"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 0 "IPv6 route using a group after removing v4 gateways"
+
+	run_cmd "$IP ro delete 2001:db8:101::1/128"
+	run_cmd "$IP nexthop add id 87 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop add id 88 via 172.16.1.1 dev veth1"
+	run_cmd "$IP nexthop replace id 124 group 86/87/88"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop replace id 88 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 2 "IPv6 route can not have a group with v4 and v6 gateways"
+
+	run_cmd "$IP nexthop replace id 87 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 124"
+	log_test $? 0 "IPv6 route using a group after replacing v4 gateways"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	#
+	# weird IPv6 cases
+	#
+	run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81"
+
+	# route can not use prefsrc with nexthops
+	run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 from 2001:db8:91::1"
+	log_test $? 2 "IPv6 route can not use src routing with external nexthop"
+
+	# check cleanup path on invalid metric
+	run_cmd "$IP ro add 2001:db8:101::2/128 nhid 86 congctl lock foo"
+	log_test $? 2 "IPv6 route with invalid metric"
+
+	# rpfilter and default route
+	$IP nexthop flush >/dev/null 2>&1
+	run_cmd "ip netns exec $me ip6tables -t mangle -I PREROUTING 1 -m rpfilter --invert -j DROP"
+	run_cmd "$IP nexthop add id 91 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 92 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 93 group 91/92"
+	run_cmd "$IP -6 ro add default nhid 91"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 0 "Nexthop with default route and rpfilter"
+	run_cmd "$IP -6 ro replace default nhid 93"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 2001:db8:101::1"
+	log_test $? 0 "Nexthop with multipath default route and rpfilter"
+
+	# TO-DO:
+	# existing route with old nexthop; append route with new nexthop
+	# existing route with old nexthop; replace route with new
+	# existing route with new nexthop; replace route with old
+	# route with src address and using nexthop - not allowed
+}
+
+ipv6_large_grp()
+{
+	local ecmp=32
+
+	echo
+	echo "IPv6 large groups (x$ecmp)"
+	echo "---------------------"
+
+	check_large_grp 6 $ecmp
+
+	$IP nexthop flush >/dev/null 2>&1
+}
+
+ipv6_large_res_grp()
+{
+	echo
+	echo "IPv6 large resilient group (128k buckets)"
+	echo "-----------------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	check_large_res_grp 6 $((128 * 1024))
+
+	$IP nexthop flush >/dev/null 2>&1
+}
+
+ipv6_del_add_loop1()
+{
+	while :; do
+		$IP nexthop del id 100
+		$IP nexthop add id 100 via 2001:db8:91::2 dev veth1
+	done >/dev/null 2>&1
+}
+
+ipv6_grp_replace_loop()
+{
+	while :; do
+		$IP nexthop replace id 102 group 100/101
+	done >/dev/null 2>&1
+}
+
+ipv6_torture()
+{
+	local pid1
+	local pid2
+	local pid3
+	local pid4
+	local pid5
+
+	echo
+	echo "IPv6 runtime torture"
+	echo "--------------------"
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "SKIP: Could not run test; need mausezahn tool"
+		return
+	fi
+
+	run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 102 group 100/101"
+	run_cmd "$IP route add 2001:db8:101::1 nhid 102"
+	run_cmd "$IP route add 2001:db8:101::2 nhid 102"
+
+	ipv6_del_add_loop1 &
+	pid1=$!
+	ipv6_grp_replace_loop &
+	pid2=$!
+	ip netns exec $me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
+	pid3=$!
+	ip netns exec $me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
+	pid4=$!
+	ip netns exec $me mausezahn -6 veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+	pid5=$!
+
+	sleep 300
+	kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+	wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
+
+	# if we did not crash, success
+	log_test 0 0 "IPv6 torture test"
+}
+
+ipv6_res_grp_replace_loop()
+{
+	while :; do
+		$IP nexthop replace id 102 group 100/101 type resilient
+	done >/dev/null 2>&1
+}
+
+ipv6_res_torture()
+{
+	local pid1
+	local pid2
+	local pid3
+	local pid4
+	local pid5
+
+	echo
+	echo "IPv6 runtime resilient nexthop group torture"
+	echo "--------------------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "SKIP: Could not run test; need mausezahn tool"
+		return
+	fi
+
+	run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
+	run_cmd "$IP nexthop add id 102 group 100/101 type resilient buckets 512 idle_timer 0"
+	run_cmd "$IP route add 2001:db8:101::1 nhid 102"
+	run_cmd "$IP route add 2001:db8:101::2 nhid 102"
+
+	ipv6_del_add_loop1 &
+	pid1=$!
+	ipv6_res_grp_replace_loop &
+	pid2=$!
+	ip netns exec $me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
+	pid3=$!
+	ip netns exec $me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
+	pid4=$!
+	ip netns exec $me mausezahn -6 veth1 \
+			    -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 \
+			    -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+	pid5=$!
+
+	sleep 300
+	kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+	wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
+
+	# if we did not crash, success
+	log_test 0 0 "IPv6 resilient nexthop group torture test"
+}
+
+ipv4_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv4 functional"
+	echo "----------------------"
+
+	#
+	# basic IPv4 ops - add, get, delete
+	#
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	rc=$?
+	log_test $rc 0 "Create nexthop with id, gw, dev"
+	if [ $rc -ne 0 ]; then
+		echo "Basic IPv4 create fails; can not continue"
+		return 1
+	fi
+
+	run_cmd "$IP nexthop get id 12"
+	log_test $? 0 "Get nexthop by id"
+	check_nexthop "id 12" "id 12 via 172.16.1.2 dev veth1 scope link"
+
+	run_cmd "$IP nexthop del id 12"
+	log_test $? 0 "Delete nexthop by id"
+	check_nexthop "id 52" ""
+
+	#
+	# gw, device spec
+	#
+	# gw validation, no device - fails since dev is required
+	run_cmd "$IP nexthop add id 12 via 172.16.2.3"
+	log_test $? 2 "Create nexthop - gw only"
+
+	# gw not reachable through given dev
+	run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1"
+	log_test $? 2 "Create nexthop - invalid gw+dev combination"
+
+	# onlink flag overrides gw+dev lookup
+	run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1 onlink"
+	log_test $? 0 "Create nexthop - gw+dev and onlink"
+
+	# admin down should delete nexthops
+	set -e
+	run_cmd "$IP nexthop add id 15 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 16 via 172.16.1.4 dev veth1"
+	run_cmd "$IP nexthop add id 17 via 172.16.1.5 dev veth1"
+	run_cmd "$IP li set dev veth1 down"
+	set +e
+	check_nexthop "dev veth1" ""
+	log_test $? 0 "Nexthops removed on admin down"
+
+	# nexthop route delete warning: route add with nhid and delete
+	# using device
+	run_cmd "$IP li set dev veth1 up"
+	run_cmd "$IP nexthop add id 12 via 172.16.1.3 dev veth1"
+	out1=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
+	run_cmd "$IP route add 172.16.101.1/32 nhid 12"
+	run_cmd "$IP route delete 172.16.101.1/32 dev veth1"
+	out2=`dmesg | grep "WARNING:.*fib_nh_match.*" | wc -l`
+	[ $out1 -eq $out2 ]
+	rc=$?
+	log_test $rc 0 "Delete nexthop route warning"
+	run_cmd "$IP route delete 172.16.101.1/32 nhid 12"
+	run_cmd "$IP nexthop del id 12"
+
+	run_cmd "$IP nexthop add id 21 via 172.16.1.6 dev veth1"
+	run_cmd "$IP ro add 172.16.101.0/24 nhid 21"
+	run_cmd "$IP ro del 172.16.101.0/24 nexthop via 172.16.1.7 dev veth1 nexthop via 172.16.1.8 dev veth1"
+	log_test $? 2 "Delete multipath route with only nh id based entry"
+
+	run_cmd "$IP nexthop add id 22 via 172.16.1.6 dev veth1"
+	run_cmd "$IP ro add 172.16.102.0/24 nhid 22"
+	run_cmd "$IP ro del 172.16.102.0/24 dev veth1"
+	log_test $? 2 "Delete route when specifying only nexthop device"
+
+	run_cmd "$IP ro del 172.16.102.0/24 via 172.16.1.6"
+	log_test $? 2 "Delete route when specifying only gateway"
+
+	run_cmd "$IP ro del 172.16.102.0/24"
+	log_test $? 0 "Delete route when not specifying nexthop attributes"
+}
+
+ipv4_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv4 groups functional"
+	echo "----------------------"
+
+	# basic functionality: create a nexthop group, default weight
+	run_cmd "$IP nexthop add id 11 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 101 group 11"
+	log_test $? 0 "Create nexthop group with single nexthop"
+
+	# get nexthop group
+	run_cmd "$IP nexthop get id 101"
+	log_test $? 0 "Get nexthop group by id"
+	check_nexthop "id 101" "id 101 group 11"
+
+	# delete nexthop group
+	run_cmd "$IP nexthop del id 101"
+	log_test $? 0 "Delete nexthop group by id"
+	check_nexthop "id 101" ""
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	#
+	# create group with multiple nexthops
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
+	run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 12/13/14/15"
+	log_test $? 0 "Nexthop group with multiple nexthops"
+	check_nexthop "id 102" "id 102 group 12/13/14/15"
+
+	# Delete nexthop in a group and group is updated
+	run_cmd "$IP nexthop del id 13"
+	check_nexthop "id 102" "id 102 group 12/14/15"
+	log_test $? 0 "Nexthop group updated when entry is deleted"
+
+	# create group with multiple weighted nexthops
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 103 group 12/13,2/14,3/15,4"
+	log_test $? 0 "Nexthop group with weighted nexthops"
+	check_nexthop "id 103" "id 103 group 12/13,2/14,3/15,4"
+
+	# Delete nexthop in a weighted group and group is updated
+	run_cmd "$IP nexthop del id 13"
+	check_nexthop "id 103" "id 103 group 12/14,3/15,4"
+	log_test $? 0 "Weighted nexthop group updated when entry is deleted"
+
+	# admin down - nexthop is removed from group
+	run_cmd "$IP li set dev veth1 down"
+	check_nexthop "dev veth1" ""
+	log_test $? 0 "Nexthops in groups removed on admin down"
+
+	# expect groups to have been deleted as well
+	check_nexthop "" ""
+
+	run_cmd "$IP li set dev veth1 up"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	# group with nexthops using different devices
+	set -e
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1"
+	run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1"
+
+	run_cmd "$IP nexthop add id 22 via 172.16.2.2 dev veth3"
+	run_cmd "$IP nexthop add id 23 via 172.16.2.3 dev veth3"
+	run_cmd "$IP nexthop add id 24 via 172.16.2.4 dev veth3"
+	run_cmd "$IP nexthop add id 25 via 172.16.2.5 dev veth3"
+	set +e
+
+	# multiple groups with same nexthop
+	run_cmd "$IP nexthop add id 104 group 12"
+	run_cmd "$IP nexthop add id 105 group 12"
+	check_nexthop "group" "id 104 group 12 id 105 group 12"
+	log_test $? 0 "Multiple groups with same nexthop"
+
+	run_cmd "$IP nexthop flush groups"
+	[ $? -ne 0 ] && return 1
+
+	# on admin down of veth1, it should be removed from the group
+	run_cmd "$IP nexthop add id 105 group 12/13/22/23/14"
+	run_cmd "$IP li set veth1 down"
+	check_nexthop "id 105" "id 105 group 22/23"
+	log_test $? 0 "Nexthops in group removed on admin down - mixed group"
+
+	run_cmd "$IP nexthop add id 106 group 105/24"
+	log_test $? 2 "Nexthop group can not have a group as an entry"
+
+	# a group can have a blackhole entry only if it is the only
+	# nexthop in the group. Needed for atomic replace with an
+	# actual nexthop group
+	run_cmd "$IP nexthop add id 31 blackhole"
+	run_cmd "$IP nexthop add id 107 group 31"
+	log_test $? 0 "Nexthop group with a blackhole entry"
+
+	run_cmd "$IP nexthop add id 108 group 31/24"
+	log_test $? 2 "Nexthop group can not have a blackhole and another nexthop"
+}
+
+ipv4_res_grp_fcnal()
+{
+	local rc
+
+	echo
+	echo "IPv4 resilient groups functional"
+	echo "--------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	#
+	# migration of nexthop buckets - equal weights
+	#
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 12/13 type resilient buckets 2 idle_timer 0"
+
+	run_cmd "$IP nexthop del id 13"
+	check_nexthop "id 102" \
+		"id 102 group 12 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated when entry is deleted"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 12 id 102 index 1 nhid 12"
+	log_test $? 0 "Nexthop buckets updated when entry is deleted"
+
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop replace id 102 group 12/13 type resilient buckets 2 idle_timer 0"
+	check_nexthop "id 102" \
+		"id 102 group 12/13 type resilient buckets 2 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated after replace"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 13 id 102 index 1 nhid 12"
+	log_test $? 0 "Nexthop buckets updated after replace"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	#
+	# migration of nexthop buckets - unequal weights
+	#
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop add id 102 group 12,3/13,1 type resilient buckets 4 idle_timer 0"
+
+	run_cmd "$IP nexthop del id 13"
+	check_nexthop "id 102" \
+		"id 102 group 12,3 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated when entry is deleted - nECMP"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 12 id 102 index 1 nhid 12 id 102 index 2 nhid 12 id 102 index 3 nhid 12"
+	log_test $? 0 "Nexthop buckets updated when entry is deleted - nECMP"
+
+	run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1"
+	run_cmd "$IP nexthop replace id 102 group 12,3/13,1 type resilient buckets 4 idle_timer 0"
+	check_nexthop "id 102" \
+		"id 102 group 12,3/13 type resilient buckets 4 idle_timer 0 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Nexthop group updated after replace - nECMP"
+	check_nexthop_bucket "list id 102" \
+		"id 102 index 0 nhid 13 id 102 index 1 nhid 12 id 102 index 2 nhid 12 id 102 index 3 nhid 12"
+	log_test $? 0 "Nexthop buckets updated after replace - nECMP"
+}
+
+ipv4_withv6_fcnal()
+{
+	local lladdr
+
+	set -e
+	lladdr=$(get_linklocal veth2 $peer)
+	run_cmd "$IP nexthop add id 11 via ${lladdr} dev veth1"
+	set +e
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 11"
+	log_test $? 0 "IPv6 nexthop with IPv4 route"
+	check_route "172.16.101.1" "172.16.101.1 nhid 11 via inet6 ${lladdr} dev veth1"
+
+	set -e
+	run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 101 group 11/12"
+	set +e
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
+	log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+	check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+
+	run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+	log_test $? 0 "IPv4 route with IPv6 gateway"
+	check_route "172.16.101.1" "172.16.101.1 via inet6 ${lladdr} dev veth1"
+
+	run_cmd "$IP ro replace 172.16.101.1/32 via inet6 2001:db8:50::1 dev veth1"
+	log_test $? 2 "IPv4 route with invalid IPv6 gateway"
+}
+
+ipv4_fcnal_runtime()
+{
+	local lladdr
+	local rc
+
+	echo
+	echo "IPv4 functional runtime"
+	echo "-----------------------"
+
+	run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 21"
+	log_test $? 0 "Route add"
+	check_route "172.16.101.1" "172.16.101.1 nhid 21 via 172.16.1.2 dev veth1"
+
+	run_cmd "$IP ro delete 172.16.101.1/32 nhid 21"
+	log_test $? 0 "Route delete"
+
+	#
+	# scope mismatch
+	#
+	run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
+	log_test $? 2 "Route add - scope conflict with nexthop"
+
+	run_cmd "$IP nexthop replace id 22 dev veth3"
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host"
+	run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
+	log_test $? 2 "Nexthop replace with invalid scope for existing route"
+
+	# check cleanup path on invalid metric
+	run_cmd "$IP ro add 172.16.101.2/32 nhid 22 congctl lock foo"
+	log_test $? 2 "IPv4 route with invalid metric"
+
+	#
+	# add route with nexthop and check traffic
+	#
+	run_cmd "$IP nexthop replace id 21 via 172.16.1.2 dev veth1"
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 21"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "Basic ping"
+
+	run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3"
+	run_cmd "$IP nexthop add id 122 group 21/22"
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "Ping - multipath"
+
+	run_cmd "$IP ro delete 172.16.101.1/32 nhid 122"
+
+	#
+	# multiple default routes
+	# - tests fib_select_default
+	run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1"
+	run_cmd "$IP ro add default nhid 501"
+	run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "Ping - multiple default routes, nh first"
+
+	# flip the order
+	run_cmd "$IP ro del default nhid 501"
+	run_cmd "$IP ro del default via 172.16.1.3 dev veth1 metric 20"
+	run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20"
+	run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1"
+	run_cmd "$IP ro add default nhid 501 metric 20"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "Ping - multiple default routes, nh second"
+
+	run_cmd "$IP nexthop delete nhid 501"
+	run_cmd "$IP ro del default"
+
+	#
+	# IPv4 with blackhole nexthops
+	#
+	run_cmd "$IP nexthop add id 23 blackhole"
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 23"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 2 "Ping - blackhole"
+
+	run_cmd "$IP nexthop replace id 23 via 172.16.1.2 dev veth1"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "Ping - blackhole replaced with gateway"
+
+	run_cmd "$IP nexthop replace id 23 blackhole"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 2 "Ping - gateway replaced by blackhole"
+
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 122"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	if [ $? -eq 0 ]; then
+		run_cmd "$IP nexthop replace id 122 group 23"
+		run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+		log_test $? 2 "Ping - group with blackhole"
+
+		run_cmd "$IP nexthop replace id 122 group 21/22"
+		run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+		log_test $? 0 "Ping - group blackhole replaced with gateways"
+	else
+		log_test 2 0 "Ping - multipath failed"
+	fi
+
+	#
+	# device only and gw + dev only mix
+	#
+	run_cmd "$IP nexthop add id 85 dev veth1"
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 85"
+	log_test $? 0 "IPv4 route with device only nexthop"
+	check_route "172.16.101.1" "172.16.101.1 nhid 85 dev veth1"
+
+	run_cmd "$IP nexthop add id 123 group 21/85"
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 123"
+	log_test $? 0 "IPv4 multipath route with nexthop mix - dev only + gw"
+	check_route "172.16.101.1" "172.16.101.1 nhid 123 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop dev veth1 weight 1"
+
+	#
+	# IPv4 with IPv6
+	#
+	set -e
+	lladdr=$(get_linklocal veth2 $peer)
+	run_cmd "$IP nexthop add id 24 via ${lladdr} dev veth1"
+	set +e
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 24"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+	$IP neigh sh | grep -q "${lladdr} dev veth1"
+	if [ $? -eq 1 ]; then
+		echo "    WARNING: Neigh entry missing for ${lladdr}"
+		$IP neigh sh | grep 'dev veth1'
+	fi
+
+	$IP neigh sh | grep -q "172.16.101.1 dev eth1"
+	if [ $? -eq 0 ]; then
+		echo "    WARNING: Neigh entry exists for 172.16.101.1"
+		$IP neigh sh | grep 'dev veth1'
+	fi
+
+	set -e
+	run_cmd "$IP nexthop add id 25 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 101 group 24/25"
+	set +e
+	run_cmd "$IP ro replace 172.16.101.1/32 nhid 101"
+	log_test $? 0 "IPv4 route with mixed v4-v6 multipath route"
+
+	check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "IPv6 nexthop with IPv4 route"
+
+	run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "IPv4 route with IPv6 gateway"
+
+	$IP neigh sh | grep -q "${lladdr} dev veth1"
+	if [ $? -eq 1 ]; then
+		echo "    WARNING: Neigh entry missing for ${lladdr}"
+		$IP neigh sh | grep 'dev veth1'
+	fi
+
+	$IP neigh sh | grep -q "172.16.101.1 dev eth1"
+	if [ $? -eq 0 ]; then
+		echo "    WARNING: Neigh entry exists for 172.16.101.1"
+		$IP neigh sh | grep 'dev veth1'
+	fi
+
+	run_cmd "$IP ro del 172.16.101.1/32 via inet6 ${lladdr} dev veth1"
+	run_cmd "$IP -4 ro add default via inet6 ${lladdr} dev veth1"
+	run_cmd "ip netns exec $me ping -c1 -w$PING_TIMEOUT 172.16.101.1"
+	log_test $? 0 "IPv4 default route with IPv6 gateway"
+
+	#
+	# MPLS as an example of LWT encap
+	#
+	run_cmd "$IP nexthop add id 51 encap mpls 101 via 172.16.1.2 dev veth1"
+	log_test $? 0 "IPv4 route with MPLS encap"
+	check_nexthop "id 51" "id 51 encap mpls 101 via 172.16.1.2 dev veth1 scope link"
+	log_test $? 0 "IPv4 route with MPLS encap - check"
+
+	run_cmd "$IP nexthop add id 52 encap mpls 102 via inet6 2001:db8:91::2 dev veth1"
+	log_test $? 0 "IPv4 route with MPLS encap and v6 gateway"
+	check_nexthop "id 52" "id 52 encap mpls 102 via 2001:db8:91::2 dev veth1 scope link"
+	log_test $? 0 "IPv4 route with MPLS encap, v6 gw - check"
+}
+
+ipv4_large_grp()
+{
+	local ecmp=32
+
+	echo
+	echo "IPv4 large groups (x$ecmp)"
+	echo "---------------------"
+
+	check_large_grp 4 $ecmp
+
+	$IP nexthop flush >/dev/null 2>&1
+}
+
+ipv4_large_res_grp()
+{
+	echo
+	echo "IPv4 large resilient group (128k buckets)"
+	echo "-----------------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	check_large_res_grp 4 $((128 * 1024))
+
+	$IP nexthop flush >/dev/null 2>&1
+}
+
+sysctl_nexthop_compat_mode_check()
+{
+	local sysctlname="net.ipv4.nexthop_compat_mode"
+	local lprefix=$1
+
+	IPE="ip netns exec $me"
+
+	$IPE sysctl -q $sysctlname 2>&1 >/dev/null
+	if [ $? -ne 0 ]; then
+		echo "SKIP: kernel lacks nexthop compat mode sysctl control"
+		return $ksft_skip
+	fi
+
+	out=$($IPE sysctl $sysctlname 2>/dev/null)
+	log_test $? 0 "$lprefix default nexthop compat mode check"
+	check_output "${out}" "$sysctlname = 1"
+}
+
+sysctl_nexthop_compat_mode_set()
+{
+	local sysctlname="net.ipv4.nexthop_compat_mode"
+	local mode=$1
+	local lprefix=$2
+
+	IPE="ip netns exec $me"
+
+	out=$($IPE sysctl -w $sysctlname=$mode)
+	log_test $? 0 "$lprefix set compat mode - $mode"
+	check_output "${out}" "net.ipv4.nexthop_compat_mode = $mode"
+}
+
+ipv6_compat_mode()
+{
+	local rc
+
+	echo
+	echo "IPv6 nexthop api compat mode test"
+	echo "--------------------------------"
+
+	sysctl_nexthop_compat_mode_check "IPv6"
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 122 group 62/63"
+	ipmout=$(start_ip_monitor route)
+
+	run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
+	# route add notification should contain expanded nexthops
+	stop_ip_monitor $ipmout 3
+	log_test $? 0 "IPv6 compat mode on - route add notification"
+
+	# route dump should contain expanded nexthops
+	check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop via 2001:db8:91::3 dev veth1 weight 1"
+	log_test $? 0 "IPv6 compat mode on - route dump"
+
+	# change in nexthop group should generate route notification
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop replace id 122 group 62/64"
+	stop_ip_monitor $ipmout 3
+
+	log_test $? 0 "IPv6 compat mode on - nexthop change"
+
+	# set compat mode off
+	sysctl_nexthop_compat_mode_set 0 "IPv6"
+
+	run_cmd "$IP -6 ro del 2001:db8:101::1/128 nhid 122"
+
+	run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1"
+	run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1"
+	run_cmd "$IP nexthop add id 122 group 62/63"
+	ipmout=$(start_ip_monitor route)
+
+	run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122"
+	# route add notification should not contain expanded nexthops
+	stop_ip_monitor $ipmout 1
+	log_test $? 0 "IPv6 compat mode off - route add notification"
+
+	# route dump should not contain expanded nexthops
+	check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024"
+	log_test $? 0 "IPv6 compat mode off - route dump"
+
+	# change in nexthop group should not generate route notification
+	run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1"
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop replace id 122 group 62/64"
+	stop_ip_monitor $ipmout 0
+	log_test $? 0 "IPv6 compat mode off - nexthop change"
+
+	# nexthop delete should not generate route notification
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop del id 122"
+	stop_ip_monitor $ipmout 0
+	log_test $? 0 "IPv6 compat mode off - nexthop delete"
+
+	# set compat mode back on
+	sysctl_nexthop_compat_mode_set 1 "IPv6"
+}
+
+ipv4_compat_mode()
+{
+	local rc
+
+	echo
+	echo "IPv4 nexthop api compat mode"
+	echo "----------------------------"
+
+	sysctl_nexthop_compat_mode_check "IPv4"
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 122 group 21/22"
+	ipmout=$(start_ip_monitor route)
+
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
+	stop_ip_monitor $ipmout 3
+
+	# route add notification should contain expanded nexthops
+	log_test $? 0 "IPv4 compat mode on - route add notification"
+
+	# route dump should contain expanded nexthops
+	check_route "172.16.101.1" "172.16.101.1 nhid 122 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1"
+	log_test $? 0 "IPv4 compat mode on - route dump"
+
+	# change in nexthop group should generate route notification
+	run_cmd "$IP nexthop add id 23 via 172.16.1.3 dev veth1"
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop replace id 122 group 21/23"
+	stop_ip_monitor $ipmout 3
+	log_test $? 0 "IPv4 compat mode on - nexthop change"
+
+	sysctl_nexthop_compat_mode_set 0 "IPv4"
+
+	# cleanup
+	run_cmd "$IP ro del 172.16.101.1/32 nhid 122"
+
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP ro add 172.16.101.1/32 nhid 122"
+	stop_ip_monitor $ipmout 1
+	# route add notification should not contain expanded nexthops
+	log_test $? 0 "IPv4 compat mode off - route add notification"
+
+	# route dump should not contain expanded nexthops
+	check_route "172.16.101.1" "172.16.101.1 nhid 122"
+	log_test $? 0 "IPv4 compat mode off - route dump"
+
+	# change in nexthop group should not generate route notification
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop replace id 122 group 21/22"
+	stop_ip_monitor $ipmout 0
+	log_test $? 0 "IPv4 compat mode off - nexthop change"
+
+	# nexthop delete should not generate route notification
+	ipmout=$(start_ip_monitor route)
+	run_cmd "$IP nexthop del id 122"
+	stop_ip_monitor $ipmout 0
+	log_test $? 0 "IPv4 compat mode off - nexthop delete"
+
+	sysctl_nexthop_compat_mode_set 1 "IPv4"
+}
+
+ipv4_del_add_loop1()
+{
+	while :; do
+		$IP nexthop del id 100
+		$IP nexthop add id 100 via 172.16.1.2 dev veth1
+	done >/dev/null 2>&1
+}
+
+ipv4_grp_replace_loop()
+{
+	while :; do
+		$IP nexthop replace id 102 group 100/101
+	done >/dev/null 2>&1
+}
+
+ipv4_torture()
+{
+	local pid1
+	local pid2
+	local pid3
+	local pid4
+	local pid5
+
+	echo
+	echo "IPv4 runtime torture"
+	echo "--------------------"
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "SKIP: Could not run test; need mausezahn tool"
+		return
+	fi
+
+	run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
+	run_cmd "$IP nexthop add id 102 group 100/101"
+	run_cmd "$IP route add 172.16.101.1 nhid 102"
+	run_cmd "$IP route add 172.16.101.2 nhid 102"
+
+	ipv4_del_add_loop1 &
+	pid1=$!
+	ipv4_grp_replace_loop &
+	pid2=$!
+	ip netns exec $me ping -f 172.16.101.1 >/dev/null 2>&1 &
+	pid3=$!
+	ip netns exec $me ping -f 172.16.101.2 >/dev/null 2>&1 &
+	pid4=$!
+	ip netns exec $me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+	pid5=$!
+
+	sleep 300
+	kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+	wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
+
+	# if we did not crash, success
+	log_test 0 0 "IPv4 torture test"
+}
+
+ipv4_res_grp_replace_loop()
+{
+	while :; do
+		$IP nexthop replace id 102 group 100/101 type resilient
+	done >/dev/null 2>&1
+}
+
+ipv4_res_torture()
+{
+	local pid1
+	local pid2
+	local pid3
+	local pid4
+	local pid5
+
+	echo
+	echo "IPv4 runtime resilient nexthop group torture"
+	echo "--------------------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "SKIP: Could not run test; need mausezahn tool"
+		return
+	fi
+
+	run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
+	run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
+	run_cmd "$IP nexthop add id 102 group 100/101 type resilient buckets 512 idle_timer 0"
+	run_cmd "$IP route add 172.16.101.1 nhid 102"
+	run_cmd "$IP route add 172.16.101.2 nhid 102"
+
+	ipv4_del_add_loop1 &
+	pid1=$!
+	ipv4_res_grp_replace_loop &
+	pid2=$!
+	ip netns exec $me ping -f 172.16.101.1 >/dev/null 2>&1 &
+	pid3=$!
+	ip netns exec $me ping -f 172.16.101.2 >/dev/null 2>&1 &
+	pid4=$!
+	ip netns exec $me mausezahn veth1 \
+				-B 172.16.101.2 -A 172.16.1.1 -c 0 \
+				-t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
+	pid5=$!
+
+	sleep 300
+	kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
+	wait $pid1 $pid2 $pid3 $pid4 $pid5 2>/dev/null
+
+	# if we did not crash, success
+	log_test 0 0 "IPv4 resilient nexthop group torture test"
+}
+
+basic()
+{
+	echo
+	echo "Basic functional tests"
+	echo "----------------------"
+	run_cmd "$IP nexthop ls"
+	log_test $? 0 "List with nothing defined"
+
+	run_cmd "$IP nexthop get id 1"
+	log_test $? 2 "Nexthop get on non-existent id"
+
+	run_cmd "$IP nexthop del id 1"
+	log_test $? 2 "Nexthop del with non-existent id"
+
+	run_cmd "$IP nexthop del id 1 group 1/2/3/4/5/6/7/8"
+	log_test $? 2 "Nexthop del with non-existent id and extra attributes"
+
+	# attempt to create nh without a device or gw - fails
+	run_cmd "$IP nexthop add id 1"
+	log_test $? 2 "Nexthop with no device or gateway"
+
+	# attempt to create nh with down device - fails
+	$IP li set veth1 down
+	run_cmd "$IP nexthop add id 1 dev veth1"
+	log_test $? 2 "Nexthop with down device"
+
+	# create nh with linkdown device - fails
+	$IP li set veth1 up
+	ip -netns $peer li set veth2 down
+	run_cmd "$IP nexthop add id 1 dev veth1"
+	log_test $? 2 "Nexthop with device that is linkdown"
+	ip -netns $peer li set veth2 up
+
+	# device only
+	run_cmd "$IP nexthop add id 1 dev veth1"
+	log_test $? 0 "Nexthop with device only"
+
+	# create nh with duplicate id
+	run_cmd "$IP nexthop add id 1 dev veth3"
+	log_test $? 2 "Nexthop with duplicate id"
+
+	# blackhole nexthop
+	run_cmd "$IP nexthop add id 2 blackhole"
+	log_test $? 0 "Blackhole nexthop"
+
+	# blackhole nexthop can not have other specs
+	run_cmd "$IP nexthop replace id 2 blackhole dev veth1"
+	log_test $? 2 "Blackhole nexthop with other attributes"
+
+	# blackhole nexthop should not be affected by the state of the loopback
+	# device
+	run_cmd "$IP link set dev lo down"
+	check_nexthop "id 2" "id 2 blackhole"
+	log_test $? 0 "Blackhole nexthop with loopback device down"
+
+	run_cmd "$IP link set dev lo up"
+
+	# Dump should not loop endlessly when maximum nexthop ID is configured.
+	run_cmd "$IP nexthop add id $((2**32-1)) blackhole"
+	run_cmd "timeout 5 $IP nexthop"
+	log_test $? 0 "Maximum nexthop ID dump"
+
+	#
+	# groups
+	#
+
+	run_cmd "$IP nexthop add id 101 group 1"
+	log_test $? 0 "Create group"
+
+	run_cmd "$IP nexthop add id 102 group 2"
+	log_test $? 0 "Create group with blackhole nexthop"
+
+	# multipath group can not have a blackhole as 1 path
+	run_cmd "$IP nexthop add id 103 group 1/2"
+	log_test $? 2 "Create multipath group where 1 path is a blackhole"
+
+	# multipath group can not have a member replaced by a blackhole
+	run_cmd "$IP nexthop replace id 2 dev veth3"
+	run_cmd "$IP nexthop replace id 102 group 1/2"
+	run_cmd "$IP nexthop replace id 2 blackhole"
+	log_test $? 2 "Multipath group can not have a member replaced by blackhole"
+
+	# attempt to create group with non-existent nexthop
+	run_cmd "$IP nexthop add id 103 group 12"
+	log_test $? 2 "Create group with non-existent nexthop"
+
+	# attempt to create group with same nexthop
+	run_cmd "$IP nexthop add id 103 group 1/1"
+	log_test $? 2 "Create group with same nexthop multiple times"
+
+	# replace nexthop with a group - fails
+	run_cmd "$IP nexthop replace id 2 group 1"
+	log_test $? 2 "Replace nexthop with nexthop group"
+
+	# replace nexthop group with a nexthop - fails
+	run_cmd "$IP nexthop replace id 101 dev veth1"
+	log_test $? 2 "Replace nexthop group with nexthop"
+
+	# nexthop group with other attributes fail
+	run_cmd "$IP nexthop add id 104 group 1 dev veth1"
+	log_test $? 2 "Nexthop group and device"
+
+	# Tests to ensure that flushing works as expected.
+	run_cmd "$IP nexthop add id 105 blackhole proto 99"
+	run_cmd "$IP nexthop add id 106 blackhole proto 100"
+	run_cmd "$IP nexthop add id 107 blackhole proto 99"
+	run_cmd "$IP nexthop flush proto 99"
+	check_nexthop "id 105" ""
+	check_nexthop "id 106" "id 106 blackhole proto 100"
+	check_nexthop "id 107" ""
+	run_cmd "$IP nexthop flush proto 100"
+	check_nexthop "id 106" ""
+
+	run_cmd "$IP nexthop flush proto 100"
+	log_test $? 0 "Test proto flush"
+
+	run_cmd "$IP nexthop add id 104 group 1 blackhole"
+	log_test $? 2 "Nexthop group and blackhole"
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	# Test to ensure that flushing with a multi-part nexthop dump works as
+	# expected.
+	local batch_file=$(mktemp)
+
+	for i in $(seq 1 $((64 * 1024))); do
+		echo "nexthop add id $i blackhole" >> $batch_file
+	done
+
+	$IP -b $batch_file
+	$IP nexthop flush >/dev/null 2>&1
+	[[ $($IP nexthop | wc -l) -eq 0 ]]
+	log_test $? 0 "Large scale nexthop flushing"
+
+	rm $batch_file
+}
+
+check_nexthop_buckets_balance()
+{
+	local nharg=$1; shift
+	local ret
+
+	while (($# > 0)); do
+		local selector=$1; shift
+		local condition=$1; shift
+		local count
+
+		count=$($IP -j nexthop bucket ${nharg} ${selector} | jq length)
+		(( $count $condition ))
+		ret=$?
+		if ((ret != 0)); then
+			return $ret
+		fi
+	done
+
+	return 0
+}
+
+basic_res()
+{
+	echo
+	echo "Basic resilient nexthop group functional tests"
+	echo "----------------------------------------------"
+
+	check_nexthop_res_support
+	if [ $? -eq $ksft_skip ]; then
+		return $ksft_skip
+	fi
+
+	run_cmd "$IP nexthop add id 1 dev veth1"
+
+	#
+	# resilient nexthop group addition
+	#
+
+	run_cmd "$IP nexthop add id 101 group 1 type resilient buckets 8"
+	log_test $? 0 "Add a nexthop group with default parameters"
+
+	run_cmd "$IP nexthop get id 101"
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 120 unbalanced_timer 0 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group with default parameters"
+
+	run_cmd "$IP nexthop add id 102 group 1 type resilient
+			buckets 4 idle_timer 100 unbalanced_timer 5"
+	run_cmd "$IP nexthop get id 102"
+	check_nexthop "id 102" \
+		"id 102 group 1 type resilient buckets 4 idle_timer 100 unbalanced_timer 5 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group with non-default parameters"
+
+	run_cmd "$IP nexthop add id 103 group 1 type resilient buckets 0"
+	log_test $? 2 "Add a nexthop group with 0 buckets"
+
+	#
+	# resilient nexthop group replacement
+	#
+
+	run_cmd "$IP nexthop replace id 101 group 1 type resilient
+			buckets 8 idle_timer 240 unbalanced_timer 80"
+	log_test $? 0 "Replace nexthop group parameters"
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 240 unbalanced_timer 80 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group after replacing parameters"
+
+	run_cmd "$IP nexthop replace id 101 group 1 type resilient idle_timer 512"
+	log_test $? 0 "Replace idle timer"
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 80 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group after replacing idle timer"
+
+	run_cmd "$IP nexthop replace id 101 group 1 type resilient unbalanced_timer 256"
+	log_test $? 0 "Replace unbalanced timer"
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group after replacing unbalanced timer"
+
+	run_cmd "$IP nexthop replace id 101 group 1 type resilient"
+	log_test $? 0 "Replace with no parameters"
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group after replacing no parameters"
+
+	run_cmd "$IP nexthop replace id 101 group 1"
+	log_test $? 2 "Replace nexthop group type - implicit"
+
+	run_cmd "$IP nexthop replace id 101 group 1 type mpath"
+	log_test $? 2 "Replace nexthop group type - explicit"
+
+	run_cmd "$IP nexthop replace id 101 group 1 type resilient buckets 1024"
+	log_test $? 2 "Replace number of nexthop buckets"
+
+	check_nexthop "id 101" \
+		"id 101 group 1 type resilient buckets 8 idle_timer 512 unbalanced_timer 256 unbalanced_time 0"
+	log_test $? 0 "Get a nexthop group after replacing with invalid parameters"
+
+	#
+	# resilient nexthop buckets dump
+	#
+
+	$IP nexthop flush >/dev/null 2>&1
+	run_cmd "$IP nexthop add id 1 dev veth1"
+	run_cmd "$IP nexthop add id 2 dev veth3"
+	run_cmd "$IP nexthop add id 101 group 1/2 type resilient buckets 4"
+	run_cmd "$IP nexthop add id 201 group 1/2"
+
+	check_nexthop_bucket "" \
+		"id 101 index 0 nhid 2 id 101 index 1 nhid 2 id 101 index 2 nhid 1 id 101 index 3 nhid 1"
+	log_test $? 0 "Dump all nexthop buckets"
+
+	check_nexthop_bucket "list id 101" \
+		"id 101 index 0 nhid 2 id 101 index 1 nhid 2 id 101 index 2 nhid 1 id 101 index 3 nhid 1"
+	log_test $? 0 "Dump all nexthop buckets in a group"
+
+	sleep 0.1
+	(( $($IP -j nexthop bucket list id 101 |
+	     jq '[.[] | select(.bucket.idle_time > 0 and
+	                       .bucket.idle_time < 2)] | length') == 4 ))
+	log_test $? 0 "All nexthop buckets report a positive near-zero idle time"
+
+	check_nexthop_bucket "list dev veth1" \
+		"id 101 index 2 nhid 1 id 101 index 3 nhid 1"
+	log_test $? 0 "Dump all nexthop buckets with a specific nexthop device"
+
+	check_nexthop_bucket "list nhid 2" \
+		"id 101 index 0 nhid 2 id 101 index 1 nhid 2"
+	log_test $? 0 "Dump all nexthop buckets with a specific nexthop identifier"
+
+	run_cmd "$IP nexthop bucket list id 111"
+	log_test $? 2 "Dump all nexthop buckets in a non-existent group"
+
+	run_cmd "$IP nexthop bucket list id 201"
+	log_test $? 2 "Dump all nexthop buckets in a non-resilient group"
+
+	run_cmd "$IP nexthop bucket list dev bla"
+	log_test $? 255 "Dump all nexthop buckets using a non-existent device"
+
+	run_cmd "$IP nexthop bucket list groups"
+	log_test $? 255 "Dump all nexthop buckets with invalid 'groups' keyword"
+
+	run_cmd "$IP nexthop bucket list fdb"
+	log_test $? 255 "Dump all nexthop buckets with invalid 'fdb' keyword"
+
+	# Dump should not loop endlessly when maximum nexthop ID is configured.
+	run_cmd "$IP nexthop add id $((2**32-1)) group 1/2 type resilient buckets 4"
+	run_cmd "timeout 5 $IP nexthop bucket"
+	log_test $? 0 "Maximum nexthop ID dump"
+
+	#
+	# resilient nexthop buckets get requests
+	#
+
+	check_nexthop_bucket "get id 101 index 0" "id 101 index 0 nhid 2"
+	log_test $? 0 "Get a valid nexthop bucket"
+
+	run_cmd "$IP nexthop bucket get id 101 index 999"
+	log_test $? 2 "Get a nexthop bucket with valid group, but invalid index"
+
+	run_cmd "$IP nexthop bucket get id 201 index 0"
+	log_test $? 2 "Get a nexthop bucket from a non-resilient group"
+
+	run_cmd "$IP nexthop bucket get id 999 index 0"
+	log_test $? 2 "Get a nexthop bucket from a non-existent group"
+
+	#
+	# tests for bucket migration
+	#
+
+	$IP nexthop flush >/dev/null 2>&1
+
+	run_cmd "$IP nexthop add id 1 dev veth1"
+	run_cmd "$IP nexthop add id 2 dev veth3"
+	run_cmd "$IP nexthop add id 101
+			group 1/2 type resilient buckets 10
+			idle_timer 1 unbalanced_timer 20"
+
+	check_nexthop_buckets_balance "list id 101" \
+				      "nhid 1" "== 5" \
+				      "nhid 2" "== 5"
+	log_test $? 0 "Initial bucket allocation"
+
+	run_cmd "$IP nexthop replace id 101
+			group 1,2/2,3 type resilient"
+	check_nexthop_buckets_balance "list id 101" \
+				      "nhid 1" "== 4" \
+				      "nhid 2" "== 6"
+	log_test $? 0 "Bucket allocation after replace"
+
+	# Check that increase in idle timer does not make buckets appear busy.
+	run_cmd "$IP nexthop replace id 101
+			group 1,2/2,3 type resilient
+			idle_timer 10"
+	run_cmd "$IP nexthop replace id 101
+			group 1/2 type resilient"
+	check_nexthop_buckets_balance "list id 101" \
+				      "nhid 1" "== 5" \
+				      "nhid 2" "== 5"
+	log_test $? 0 "Buckets migrated after idle timer change"
+
+	$IP nexthop flush >/dev/null 2>&1
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $ALL_TESTS)
+        -4          IPv4 tests only
+        -6          IPv6 tests only
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          verbose mode (show commands and output)
+	-w	    Timeout for ping
+
+    Runtime test
+	-n num	    Number of nexthops to target
+	-N    	    Use new style to install routes in DUT
+
+done
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :t:pP46hvw: o
+do
+	case $o in
+		t) TESTS=$OPTARG;;
+		4) TESTS=${IPV4_TESTS};;
+		6) TESTS=${IPV6_TESTS};;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		w) PING_TIMEOUT=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip help 2>&1 | grep -q nexthop
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing nexthop command"
+	exit $ksft_skip
+fi
+
+out=$(ip nexthop ls 2>&1 | grep -q "Operation not supported")
+if [ $? -eq 0 ]; then
+	echo "SKIP: kernel lacks nexthop support"
+	exit $ksft_skip
+fi
+
+for t in $TESTS
+do
+	case $t in
+	none) IP="ip -netns $peer"; setup; exit 0;;
+	*) setup; $t; cleanup;;
+	esac
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+	printf "Tests skipped: %2d\n"  ${nskip}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
new file mode 100755
index 000000000000..5fbdd2a0b537
--- /dev/null
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -0,0 +1,804 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking IPv4 and IPv6 FIB rules API
+
+source lib.sh
+ret=0
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+RTABLE=100
+RTABLE_PEER=101
+RTABLE_VRF=102
+GW_IP4=192.51.100.2
+SRC_IP=192.51.100.3
+GW_IP6=2001:db8:1::2
+SRC_IP6=2001:db8:1::3
+
+DEV_ADDR=192.51.100.1
+DEV_ADDR6=2001:db8:1::1
+DEV=dummy0
+TESTS="
+	fib_rule6
+	fib_rule4
+	fib_rule6_connect
+	fib_rule4_connect
+	fib_rule6_vrf
+	fib_rule4_vrf
+"
+
+SELFTEST_PATH=""
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+setup()
+{
+	set -e
+	setup_ns testns
+	IP="ip -netns $testns"
+
+	$IP link add dummy0 type dummy
+	$IP link set dev dummy0 up
+	$IP address add $DEV_ADDR/24 dev dummy0
+	$IP -6 address add $DEV_ADDR6/64 dev dummy0
+
+	set +e
+}
+
+cleanup()
+{
+	$IP link del dev dummy0 &> /dev/null
+	cleanup_ns $testns
+}
+
+setup_peer()
+{
+	set -e
+
+	setup_ns peerns
+	IP_PEER="ip -netns $peerns"
+	$IP_PEER link set dev lo up
+
+	ip link add name veth0 netns $testns type veth \
+		peer name veth1 netns $peerns
+	$IP link set dev veth0 up
+	$IP_PEER link set dev veth1 up
+
+	$IP address add 192.0.2.10 peer 192.0.2.11/32 dev veth0
+	$IP_PEER address add 192.0.2.11 peer 192.0.2.10/32 dev veth1
+
+	$IP address add 2001:db8::10 peer 2001:db8::11/128 dev veth0 nodad
+	$IP_PEER address add 2001:db8::11 peer 2001:db8::10/128 dev veth1 nodad
+
+	$IP_PEER address add 198.51.100.11/32 dev lo
+	$IP route add table $RTABLE_PEER 198.51.100.11/32 via 192.0.2.11
+
+	$IP_PEER address add 2001:db8::1:11/128 dev lo
+	$IP route add table $RTABLE_PEER 2001:db8::1:11/128 via 2001:db8::11
+
+	set +e
+}
+
+cleanup_peer()
+{
+	$IP link del dev veth0
+	ip netns del $peerns
+}
+
+setup_vrf()
+{
+	$IP link add name vrf0 up type vrf table $RTABLE_VRF
+	$IP link set dev $DEV master vrf0
+}
+
+cleanup_vrf()
+{
+	$IP link del dev vrf0
+}
+
+fib_check_iproute_support()
+{
+	ip rule help 2>&1 | grep -q $1
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 iprule too old, missing $1 match"
+		return 1
+	fi
+
+	ip route get help 2>&1 | grep -q $2
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 get route too old, missing $2 match"
+		return 1
+	fi
+
+	return 0
+}
+
+fib_rule6_del()
+{
+	$IP -6 rule del $1
+	log_test $? 0 "rule6 del $1"
+}
+
+fib_rule6_del_by_pref()
+{
+	pref=$($IP -6 rule show $1 table $RTABLE | cut -d ":" -f 1)
+	$IP -6 rule del pref $pref
+}
+
+fib_rule6_test_match_n_redirect()
+{
+	local match="$1"
+	local getmatch="$2"
+	local getnomatch="$3"
+	local description="$4"
+	local nomatch_description="$5"
+
+	$IP -6 rule add $match table $RTABLE
+	$IP -6 route get $GW_IP6 $getmatch | grep -q "table $RTABLE"
+	log_test $? 0 "rule6 check: $description"
+
+	$IP -6 route get $GW_IP6 $getnomatch 2>&1 | grep -q "table $RTABLE"
+	log_test $? 1 "rule6 check: $nomatch_description"
+
+	fib_rule6_del_by_pref "$match"
+	log_test $? 0 "rule6 del by pref: $description"
+}
+
+fib_rule6_test_reject()
+{
+	local match="$1"
+	local rc
+
+	$IP -6 rule add $match table $RTABLE 2>/dev/null
+	rc=$?
+	log_test $rc 2 "rule6 check: $match"
+
+	if [ $rc -eq 0 ]; then
+		$IP -6 rule del $match table $RTABLE
+	fi
+}
+
+fib_rule6_test()
+{
+	local ext_name=$1; shift
+	local getnomatch
+	local getmatch
+	local match
+	local cnt
+
+	echo
+	echo "IPv6 FIB rule tests $ext_name"
+
+	# setup the fib rule redirect route
+	$IP -6 route add table $RTABLE default via $GW_IP6 dev $DEV onlink
+
+	match="oif $DEV"
+	getnomatch="oif lo"
+	fib_rule6_test_match_n_redirect "$match" "$match" "$getnomatch" \
+		"oif redirect to table" "oif no redirect to table"
+
+	match="from $SRC_IP6 iif $DEV"
+	getnomatch="from $SRC_IP6 iif lo"
+	fib_rule6_test_match_n_redirect "$match" "$match" "$getnomatch" \
+		"iif redirect to table" "iif no redirect to table"
+
+	# Reject dsfield (tos) options which have ECN bits set
+	for cnt in $(seq 1 3); do
+		match="dsfield $cnt"
+		fib_rule6_test_reject "$match"
+	done
+
+	# Don't take ECN bits into account when matching on dsfield
+	match="tos 0x10"
+	for cnt in "0x10" "0x11" "0x12" "0x13"; do
+		# Using option 'tos' instead of 'dsfield' as old iproute2
+		# versions don't support 'dsfield' in ip rule show.
+		getmatch="tos $cnt"
+		getnomatch="tos 0x20"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "$getmatch redirect to table" \
+			"$getnomatch no redirect to table"
+	done
+
+	# Re-test TOS matching, but with input routes since they are handled
+	# differently from output routes.
+	match="tos 0x10"
+	for cnt in "0x10" "0x11" "0x12" "0x13"; do
+		getmatch="tos $cnt"
+		getnomatch="tos 0x20"
+		fib_rule6_test_match_n_redirect "$match" \
+			"from $SRC_IP6 iif $DEV $getmatch" \
+			"from $SRC_IP6 iif $DEV $getnomatch" \
+			"iif $getmatch redirect to table" \
+			"iif $getnomatch no redirect to table"
+	done
+
+	match="fwmark 0x64"
+	getmatch="mark 0x64"
+	getnomatch="mark 0x63"
+	fib_rule6_test_match_n_redirect "$match" "$getmatch" "$getnomatch" \
+		"fwmark redirect to table" "fwmark no redirect to table"
+
+	fib_check_iproute_support "uidrange" "uid"
+	if [ $? -eq 0 ]; then
+		match="uidrange 100-100"
+		getmatch="uid 100"
+		getnomatch="uid 101"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "uid redirect to table" \
+			"uid no redirect to table"
+	fi
+
+	fib_check_iproute_support "sport" "sport"
+	if [ $? -eq 0 ]; then
+		match="sport 666 dport 777"
+		getnomatch="sport 667 dport 778"
+		fib_rule6_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "sport and dport redirect to table" \
+			"sport and dport no redirect to table"
+
+		match="sport 100-200 dport 300-400"
+		getmatch="sport 100 dport 400"
+		getnomatch="sport 100 dport 401"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" \
+			"sport and dport range redirect to table" \
+			"sport and dport range no redirect to table"
+	fi
+
+	ip rule help 2>&1 | grep sport | grep -q MASK
+	if [ $? -eq 0 ]; then
+		match="sport 0x0f00/0xff00 dport 0x000f/0x00ff"
+		getmatch="sport 0x0f11 dport 0x220f"
+		getnomatch="sport 0x1f11 dport 0x221f"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "sport and dport masked redirect to table" \
+			"sport and dport masked no redirect to table"
+	fi
+
+	fib_check_iproute_support "ipproto" "ipproto"
+	if [ $? -eq 0 ]; then
+		match="ipproto tcp"
+		getnomatch="ipproto udp"
+		fib_rule6_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "ipproto tcp match" "ipproto udp no match"
+	fi
+
+	fib_check_iproute_support "ipproto" "ipproto"
+	if [ $? -eq 0 ]; then
+		match="ipproto ipv6-icmp"
+		getnomatch="ipproto tcp"
+		fib_rule6_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "ipproto ipv6-icmp match" \
+			"ipproto ipv6-tcp no match"
+	fi
+
+	fib_check_iproute_support "dscp" "tos"
+	if [ $? -eq 0 ]; then
+		match="dscp 0x3f"
+		getmatch="tos 0xfc"
+		getnomatch="tos 0xf4"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "dscp redirect to table" \
+			"dscp no redirect to table"
+
+		match="dscp 0x3f"
+		getmatch="from $SRC_IP6 iif $DEV tos 0xfc"
+		getnomatch="from $SRC_IP6 iif $DEV tos 0xf4"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif dscp redirect to table" \
+			"iif dscp no redirect to table"
+	fi
+
+	ip rule help 2>&1 | grep -q "DSCP\[/MASK\]"
+	if [ $? -eq 0 ]; then
+		match="dscp 0x0f/0x0f"
+		tosmatch=$(printf 0x"%x" $((0x1f << 2)))
+		tosnomatch=$(printf 0x"%x" $((0x1e << 2)))
+		getmatch="tos $tosmatch"
+		getnomatch="tos $tosnomatch"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "dscp masked redirect to table" \
+			"dscp masked no redirect to table"
+
+		match="dscp 0x0f/0x0f"
+		getmatch="from $SRC_IP6 iif $DEV tos $tosmatch"
+		getnomatch="from $SRC_IP6 iif $DEV tos $tosnomatch"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif dscp masked redirect to table" \
+			"iif dscp masked no redirect to table"
+	fi
+
+	fib_check_iproute_support "flowlabel" "flowlabel"
+	if [ $? -eq 0 ]; then
+		match="flowlabel 0xfffff"
+		getmatch="flowlabel 0xfffff"
+		getnomatch="flowlabel 0xf"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "flowlabel redirect to table" \
+			"flowlabel no redirect to table"
+
+		match="flowlabel 0xfffff"
+		getmatch="from $SRC_IP6 iif $DEV flowlabel 0xfffff"
+		getnomatch="from $SRC_IP6 iif $DEV flowlabel 0xf"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif flowlabel redirect to table" \
+			"iif flowlabel no redirect to table"
+
+		match="flowlabel 0x08000/0x08000"
+		getmatch="flowlabel 0xfffff"
+		getnomatch="flowlabel 0xf7fff"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "flowlabel masked redirect to table" \
+			"flowlabel masked no redirect to table"
+
+		match="flowlabel 0x08000/0x08000"
+		getmatch="from $SRC_IP6 iif $DEV flowlabel 0xfffff"
+		getnomatch="from $SRC_IP6 iif $DEV flowlabel 0xf7fff"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif flowlabel masked redirect to table" \
+			"iif flowlabel masked no redirect to table"
+	fi
+
+	$IP link show dev $DEV | grep -q vrf0
+	if [ $? -eq 0 ]; then
+		match="oif vrf0"
+		getmatch="oif $DEV"
+		getnomatch="oif lo"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "VRF oif redirect to table" \
+			"VRF oif no redirect to table"
+
+		match="from $SRC_IP6 iif vrf0"
+		getmatch="from $SRC_IP6 iif $DEV"
+		getnomatch="from $SRC_IP6 iif lo"
+		fib_rule6_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "VRF iif redirect to table" \
+			"VRF iif no redirect to table"
+	fi
+}
+
+fib_rule6_vrf_test()
+{
+	setup_vrf
+	fib_rule6_test "- with VRF"
+	cleanup_vrf
+}
+
+# Verify that the IPV6_TCLASS option of UDPv6 and TCPv6 sockets is properly
+# taken into account when connecting the socket and when sending packets.
+fib_rule6_connect_test()
+{
+	local dsfield
+
+	echo
+	echo "IPv6 FIB rule connect tests"
+
+	setup_peer
+	$IP -6 rule add dsfield 0x04 table $RTABLE_PEER
+
+	# Combine the base DS Field value (0x04) with all possible ECN values
+	# (Not-ECT: 0, ECT(1): 1, ECT(0): 2, CE: 3).
+	# The ECN bits shouldn't influence the result of the test.
+	for dsfield in 0x04 0x05 0x06 0x07; do
+		nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D \
+			-Q "${dsfield}" -l 2001:db8::1:11 -r 2001:db8::1:11
+		log_test $? 0 "rule6 dsfield udp connect (dsfield ${dsfield})"
+
+		nettest -q -6 -B -t 5 -N $testns -O $peerns -Q "${dsfield}" \
+			-l 2001:db8::1:11 -r 2001:db8::1:11
+		log_test $? 0 "rule6 dsfield tcp connect (dsfield ${dsfield})"
+	done
+
+	# Check that UDP and TCP connections fail when using a DS Field that
+	# does not match the previously configured FIB rule.
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D \
+		-Q 0x20 -l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 1 "rule6 dsfield udp no connect (dsfield 0x20)"
+
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0x20 \
+		-l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 1 "rule6 dsfield tcp no connect (dsfield 0x20)"
+
+	$IP -6 rule del dsfield 0x04 table $RTABLE_PEER
+
+	ip rule help 2>&1 | grep -q dscp
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 iprule too old, missing dscp match"
+		cleanup_peer
+		return
+	fi
+
+	$IP -6 rule add dscp 0x3f table $RTABLE_PEER
+
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D -Q 0xfc \
+		-l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 0 "rule6 dscp udp connect"
+
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0xfc \
+		-l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 0 "rule6 dscp tcp connect"
+
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -U -D -Q 0xf4 \
+		-l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 1 "rule6 dscp udp no connect"
+
+	nettest -q -6 -B -t 5 -N $testns -O $peerns -Q 0xf4 \
+		-l 2001:db8::1:11 -r 2001:db8::1:11
+	log_test $? 1 "rule6 dscp tcp no connect"
+
+	$IP -6 rule del dscp 0x3f table $RTABLE_PEER
+
+	cleanup_peer
+}
+
+fib_rule4_del()
+{
+	$IP rule del $1
+	log_test $? 0 "del $1"
+}
+
+fib_rule4_del_by_pref()
+{
+	pref=$($IP rule show $1 table $RTABLE | cut -d ":" -f 1)
+	$IP rule del pref $pref
+}
+
+fib_rule4_test_match_n_redirect()
+{
+	local match="$1"
+	local getmatch="$2"
+	local getnomatch="$3"
+	local description="$4"
+	local nomatch_description="$5"
+
+	$IP rule add $match table $RTABLE
+	$IP route get $GW_IP4 $getmatch | grep -q "table $RTABLE"
+	log_test $? 0 "rule4 check: $description"
+
+	$IP route get $GW_IP4 $getnomatch 2>&1 | grep -q "table $RTABLE"
+	log_test $? 1 "rule4 check: $nomatch_description"
+
+	fib_rule4_del_by_pref "$match"
+	log_test $? 0 "rule4 del by pref: $description"
+}
+
+fib_rule4_test_reject()
+{
+	local match="$1"
+	local rc
+
+	$IP rule add $match table $RTABLE 2>/dev/null
+	rc=$?
+	log_test $rc 2 "rule4 check: $match"
+
+	if [ $rc -eq 0 ]; then
+		$IP rule del $match table $RTABLE
+	fi
+}
+
+fib_rule4_test()
+{
+	local ext_name=$1; shift
+	local getnomatch
+	local getmatch
+	local match
+	local cnt
+
+	echo
+	echo "IPv4 FIB rule tests $ext_name"
+
+	# setup the fib rule redirect route
+	$IP route add table $RTABLE default via $GW_IP4 dev $DEV onlink
+
+	match="oif $DEV"
+	getnomatch="oif lo"
+	fib_rule4_test_match_n_redirect "$match" "$match" "$getnomatch" \
+		"oif redirect to table" "oif no redirect to table"
+
+	ip netns exec $testns sysctl -qw net.ipv4.ip_forward=1
+	match="from $SRC_IP iif $DEV"
+	getnomatch="from $SRC_IP iif lo"
+	fib_rule4_test_match_n_redirect "$match" "$match" "$getnomatch" \
+		"iif redirect to table" "iif no redirect to table"
+
+	# Reject dsfield (tos) options which have ECN bits set
+	for cnt in $(seq 1 3); do
+		match="dsfield $cnt"
+		fib_rule4_test_reject "$match"
+	done
+
+	# Don't take ECN bits into account when matching on dsfield
+	match="tos 0x10"
+	for cnt in "0x10" "0x11" "0x12" "0x13"; do
+		# Using option 'tos' instead of 'dsfield' as old iproute2
+		# versions don't support 'dsfield' in ip rule show.
+		getmatch="tos $cnt"
+		getnomatch="tos 0x20"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "$getmatch redirect to table" \
+			"$getnomatch no redirect to table"
+	done
+
+	# Re-test TOS matching, but with input routes since they are handled
+	# differently from output routes.
+	match="tos 0x10"
+	for cnt in "0x10" "0x11" "0x12" "0x13"; do
+		getmatch="tos $cnt"
+		getnomatch="tos 0x20"
+		fib_rule4_test_match_n_redirect "$match" \
+			"from $SRC_IP iif $DEV $getmatch" \
+			"from $SRC_IP iif $DEV $getnomatch" \
+			"iif $getmatch redirect to table" \
+			"iif $getnomatch no redirect to table"
+	done
+
+	match="fwmark 0x64"
+	getmatch="mark 0x64"
+	getnomatch="mark 0x63"
+	fib_rule4_test_match_n_redirect "$match" "$getmatch" "$getnomatch" \
+		"fwmark redirect to table" "fwmark no redirect to table"
+
+	fib_check_iproute_support "uidrange" "uid"
+	if [ $? -eq 0 ]; then
+		match="uidrange 100-100"
+		getmatch="uid 100"
+		getnomatch="uid 101"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "uid redirect to table" \
+			"uid no redirect to table"
+	fi
+
+	fib_check_iproute_support "sport" "sport"
+	if [ $? -eq 0 ]; then
+		match="sport 666 dport 777"
+		getnomatch="sport 667 dport 778"
+		fib_rule4_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "sport and dport redirect to table" \
+			"sport and dport no redirect to table"
+
+		match="sport 100-200 dport 300-400"
+		getmatch="sport 100 dport 400"
+		getnomatch="sport 100 dport 401"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" \
+			"sport and dport range redirect to table" \
+			"sport and dport range no redirect to table"
+	fi
+
+	ip rule help 2>&1 | grep sport | grep -q MASK
+	if [ $? -eq 0 ]; then
+		match="sport 0x0f00/0xff00 dport 0x000f/0x00ff"
+		getmatch="sport 0x0f11 dport 0x220f"
+		getnomatch="sport 0x1f11 dport 0x221f"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "sport and dport masked redirect to table" \
+			"sport and dport masked no redirect to table"
+	fi
+
+	fib_check_iproute_support "ipproto" "ipproto"
+	if [ $? -eq 0 ]; then
+		match="ipproto tcp"
+		getnomatch="ipproto udp"
+		fib_rule4_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "ipproto tcp match" \
+			"ipproto udp no match"
+	fi
+
+	fib_check_iproute_support "ipproto" "ipproto"
+	if [ $? -eq 0 ]; then
+		match="ipproto icmp"
+		getnomatch="ipproto tcp"
+		fib_rule4_test_match_n_redirect "$match" "$match" \
+			"$getnomatch" "ipproto icmp match" \
+			"ipproto tcp no match"
+	fi
+
+	fib_check_iproute_support "dscp" "tos"
+	if [ $? -eq 0 ]; then
+		match="dscp 0x3f"
+		getmatch="tos 0xfc"
+		getnomatch="tos 0xf4"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "dscp redirect to table" \
+			"dscp no redirect to table"
+
+		match="dscp 0x3f"
+		getmatch="from $SRC_IP iif $DEV tos 0xfc"
+		getnomatch="from $SRC_IP iif $DEV tos 0xf4"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif dscp redirect to table" \
+			"iif dscp no redirect to table"
+	fi
+
+	ip rule help 2>&1 | grep -q "DSCP\[/MASK\]"
+	if [ $? -eq 0 ]; then
+		match="dscp 0x0f/0x0f"
+		tosmatch=$(printf 0x"%x" $((0x1f << 2)))
+		tosnomatch=$(printf 0x"%x" $((0x1e << 2)))
+		getmatch="tos $tosmatch"
+		getnomatch="tos $tosnomatch"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "dscp masked redirect to table" \
+			"dscp masked no redirect to table"
+
+		match="dscp 0x0f/0x0f"
+		getmatch="from $SRC_IP iif $DEV tos $tosmatch"
+		getnomatch="from $SRC_IP iif $DEV tos $tosnomatch"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "iif dscp masked redirect to table" \
+			"iif dscp masked no redirect to table"
+	fi
+
+	$IP link show dev $DEV | grep -q vrf0
+	if [ $? -eq 0 ]; then
+		match="oif vrf0"
+		getmatch="oif $DEV"
+		getnomatch="oif lo"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "VRF oif redirect to table" \
+			"VRF oif no redirect to table"
+
+		match="from $SRC_IP iif vrf0"
+		getmatch="from $SRC_IP iif $DEV"
+		getnomatch="from $SRC_IP iif lo"
+		fib_rule4_test_match_n_redirect "$match" "$getmatch" \
+			"$getnomatch" "VRF iif redirect to table" \
+			"VRF iif no redirect to table"
+	fi
+}
+
+fib_rule4_vrf_test()
+{
+	setup_vrf
+	fib_rule4_test "- with VRF"
+	cleanup_vrf
+}
+
+# Verify that the IP_TOS option of UDPv4 and TCPv4 sockets is properly taken
+# into account when connecting the socket and when sending packets.
+fib_rule4_connect_test()
+{
+	local dsfield
+
+	echo
+	echo "IPv4 FIB rule connect tests"
+
+	setup_peer
+	$IP -4 rule add dsfield 0x04 table $RTABLE_PEER
+
+	# Combine the base DS Field value (0x04) with all possible ECN values
+	# (Not-ECT: 0, ECT(1): 1, ECT(0): 2, CE: 3).
+	# The ECN bits shouldn't influence the result of the test.
+	for dsfield in 0x04 0x05 0x06 0x07; do
+		nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q "${dsfield}" \
+			-l 198.51.100.11 -r 198.51.100.11
+		log_test $? 0 "rule4 dsfield udp connect (dsfield ${dsfield})"
+
+		nettest -q -B -t 5 -N $testns -O $peerns -Q "${dsfield}" \
+			-l 198.51.100.11 -r 198.51.100.11
+		log_test $? 0 "rule4 dsfield tcp connect (dsfield ${dsfield})"
+	done
+
+	# Check that UDP and TCP connections fail when using a DS Field that
+	# does not match the previously configured FIB rule.
+	nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0x20 \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 1 "rule4 dsfield udp no connect (dsfield 0x20)"
+
+	nettest -q -B -t 5 -N $testns -O $peerns -Q 0x20 \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 1 "rule4 dsfield tcp no connect (dsfield 0x20)"
+
+	$IP -4 rule del dsfield 0x04 table $RTABLE_PEER
+
+	ip rule help 2>&1 | grep -q dscp
+	if [ $? -ne 0 ]; then
+		echo "SKIP: iproute2 iprule too old, missing dscp match"
+		cleanup_peer
+		return
+	fi
+
+	$IP -4 rule add dscp 0x3f table $RTABLE_PEER
+
+	nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0xfc \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 0 "rule4 dscp udp connect"
+
+	nettest -q -B -t 5 -N $testns -O $peerns -Q 0xfc \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 0 "rule4 dscp tcp connect"
+
+	nettest -q -B -t 5 -N $testns -O $peerns -D -U -Q 0xf4 \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 1 "rule4 dscp udp no connect"
+
+	nettest -q -B -t 5 -N $testns -O $peerns -Q 0xf4 \
+		-l 198.51.100.11 -r 198.51.100.11
+	log_test $? 1 "rule4 dscp tcp no connect"
+
+	$IP -4 rule del dscp 0x3f table $RTABLE_PEER
+
+	cleanup_peer
+}
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+check_gen_prog "nettest"
+
+# start clean
+cleanup &> /dev/null
+setup
+for t in $TESTS
+do
+	case $t in
+	fib_rule6_test|fib_rule6)		fib_rule6_test;;
+	fib_rule4_test|fib_rule4)		fib_rule4_test;;
+	fib_rule6_connect_test|fib_rule6_connect)	fib_rule6_connect_test;;
+	fib_rule4_connect_test|fib_rule4_connect)	fib_rule4_connect_test;;
+	fib_rule6_vrf_test|fib_rule6_vrf)	fib_rule6_vrf_test;;
+	fib_rule4_vrf_test|fib_rule4_vrf)	fib_rule4_vrf_test;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+
+	esac
+done
+cleanup
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fib_tests.sh b/tools/testing/selftests/net/fib_tests.sh
new file mode 100755
index 000000000000..a88f797c549a
--- /dev/null
+++ b/tools/testing/selftests/net/fib_tests.sh
@@ -0,0 +1,2875 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking IPv4 and IPv6 FIB behavior in response to
+# different events.
+source lib.sh
+ret=0
+
+# all tests in this script. Can be overridden with -t option
+TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \
+       ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics \
+       ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \
+       ipv6_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test \
+       ipv4_mpath_list ipv6_mpath_list ipv4_mpath_balance ipv6_mpath_balance \
+       fib6_ra_to_static"
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+}
+
+setup()
+{
+	set -e
+	setup_ns ns1
+	IP="$(which ip) -netns $ns1"
+	NS_EXEC="$(which ip) netns exec $ns1"
+	ip netns exec $ns1 sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec $ns1 sysctl -qw net.ipv6.conf.all.forwarding=1
+
+	$IP link add dummy0 type dummy
+	$IP link set dev dummy0 up
+	$IP address add 198.51.100.1/24 dev dummy0
+	$IP -6 address add 2001:db8:1::1/64 dev dummy0
+	set +e
+
+}
+
+cleanup()
+{
+	$IP link del dev dummy0 &> /dev/null
+	cleanup_ns $ns1 $ns2
+}
+
+get_linklocal()
+{
+	local dev=$1
+	local addr
+
+	addr=$($IP -6 -br addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+fib_unreg_unicast_test()
+{
+	echo
+	echo "Single path route test"
+
+	setup
+
+	echo "    Start point"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	set -e
+	$IP link del dev dummy0
+	set +e
+
+	echo "    Nexthop device deleted"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 2 "IPv4 fibmatch - no route"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 2 "IPv6 fibmatch - no route"
+
+	cleanup
+}
+
+fib_unreg_multipath_test()
+{
+
+	echo
+	echo "Multipath route test"
+
+	setup
+
+	set -e
+	$IP link add dummy1 type dummy
+	$IP link set dev dummy1 up
+	$IP address add 192.0.2.1/24 dev dummy1
+	$IP -6 address add 2001:db8:2::1/64 dev dummy1
+
+	$IP route add 203.0.113.0/24 \
+		nexthop via 198.51.100.2 dev dummy0 \
+		nexthop via 192.0.2.2 dev dummy1
+	$IP -6 route add 2001:db8:3::/64 \
+		nexthop via 2001:db8:1::2 dev dummy0 \
+		nexthop via 2001:db8:2::2 dev dummy1
+	set +e
+
+	echo "    Start point"
+	$IP route get fibmatch 203.0.113.1 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	set -e
+	$IP link del dev dummy0
+	set +e
+
+	echo "    One nexthop device deleted"
+	$IP route get fibmatch 203.0.113.1 &> /dev/null
+	log_test $? 2 "IPv4 - multipath route removed on delete"
+
+	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+	# In IPv6 we do not flush the entire multipath route.
+	log_test $? 0 "IPv6 - multipath down to single path"
+
+	set -e
+	$IP link del dev dummy1
+	set +e
+
+	echo "    Second nexthop device deleted"
+	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+	log_test $? 2 "IPv6 - no route"
+
+	cleanup
+}
+
+fib_unreg_test()
+{
+	fib_unreg_unicast_test
+	fib_unreg_multipath_test
+}
+
+fib_down_unicast_test()
+{
+	echo
+	echo "Single path, admin down"
+
+	setup
+
+	echo "    Start point"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	set -e
+	$IP link set dev dummy0 down
+	set +e
+
+	echo "    Route deleted on down"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 2 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 2 "IPv6 fibmatch"
+
+	cleanup
+}
+
+fib_down_multipath_test_do()
+{
+	local down_dev=$1
+	local up_dev=$2
+
+	$IP route get fibmatch 203.0.113.1 \
+		oif $down_dev &> /dev/null
+	log_test $? 2 "IPv4 fibmatch on down device"
+	$IP -6 route get fibmatch 2001:db8:3::1 \
+		oif $down_dev &> /dev/null
+	log_test $? 2 "IPv6 fibmatch on down device"
+
+	$IP route get fibmatch 203.0.113.1 \
+		oif $up_dev &> /dev/null
+	log_test $? 0 "IPv4 fibmatch on up device"
+	$IP -6 route get fibmatch 2001:db8:3::1 \
+		oif $up_dev &> /dev/null
+	log_test $? 0 "IPv6 fibmatch on up device"
+
+	$IP route get fibmatch 203.0.113.1 | \
+		grep $down_dev | grep -q "dead linkdown"
+	log_test $? 0 "IPv4 flags on down device"
+	$IP -6 route get fibmatch 2001:db8:3::1 | \
+		grep $down_dev | grep -q "dead linkdown"
+	log_test $? 0 "IPv6 flags on down device"
+
+	$IP route get fibmatch 203.0.113.1 | \
+		grep $up_dev | grep -q "dead linkdown"
+	log_test $? 1 "IPv4 flags on up device"
+	$IP -6 route get fibmatch 2001:db8:3::1 | \
+		grep $up_dev | grep -q "dead linkdown"
+	log_test $? 1 "IPv6 flags on up device"
+}
+
+fib_down_multipath_test()
+{
+	echo
+	echo "Admin down multipath"
+
+	setup
+
+	set -e
+	$IP link add dummy1 type dummy
+	$IP link set dev dummy1 up
+
+	$IP address add 192.0.2.1/24 dev dummy1
+	$IP -6 address add 2001:db8:2::1/64 dev dummy1
+
+	$IP route add 203.0.113.0/24 \
+		nexthop via 198.51.100.2 dev dummy0 \
+		nexthop via 192.0.2.2 dev dummy1
+	$IP -6 route add 2001:db8:3::/64 \
+		nexthop via 2001:db8:1::2 dev dummy0 \
+		nexthop via 2001:db8:2::2 dev dummy1
+	set +e
+
+	echo "    Verify start point"
+	$IP route get fibmatch 203.0.113.1 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+
+	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	set -e
+	$IP link set dev dummy0 down
+	set +e
+
+	echo "    One device down, one up"
+	fib_down_multipath_test_do "dummy0" "dummy1"
+
+	set -e
+	$IP link set dev dummy0 up
+	$IP link set dev dummy1 down
+	set +e
+
+	echo "    Other device down and up"
+	fib_down_multipath_test_do "dummy1" "dummy0"
+
+	set -e
+	$IP link set dev dummy0 down
+	set +e
+
+	echo "    Both devices down"
+	$IP route get fibmatch 203.0.113.1 &> /dev/null
+	log_test $? 2 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null
+	log_test $? 2 "IPv6 fibmatch"
+
+	$IP link del dev dummy1
+	cleanup
+}
+
+fib_down_test()
+{
+	fib_down_unicast_test
+	fib_down_multipath_test
+}
+
+# Local routes should not be affected when carrier changes.
+fib_carrier_local_test()
+{
+	echo
+	echo "Local carrier tests - single path"
+
+	setup
+
+	set -e
+	$IP link set dev dummy0 carrier on
+	set +e
+
+	echo "    Start point"
+	$IP route get fibmatch 198.51.100.1 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 198.51.100.1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv4 - no linkdown flag"
+	$IP -6 route get fibmatch 2001:db8:1::1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv6 - no linkdown flag"
+
+	set -e
+	$IP link set dev dummy0 carrier off
+	sleep 1
+	set +e
+
+	echo "    Carrier off on nexthop"
+	$IP route get fibmatch 198.51.100.1 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 198.51.100.1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv4 - linkdown flag set"
+	$IP -6 route get fibmatch 2001:db8:1::1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv6 - linkdown flag set"
+
+	set -e
+	$IP address add 192.0.2.1/24 dev dummy0
+	$IP -6 address add 2001:db8:2::1/64 dev dummy0
+	set +e
+
+	echo "    Route to local address with carrier down"
+	$IP route get fibmatch 192.0.2.1 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 192.0.2.1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv4 linkdown flag set"
+	$IP -6 route get fibmatch 2001:db8:2::1 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv6 linkdown flag set"
+
+	cleanup
+}
+
+fib_carrier_unicast_test()
+{
+	ret=0
+
+	echo
+	echo "Single path route carrier test"
+
+	setup
+
+	set -e
+	$IP link set dev dummy0 carrier on
+	set +e
+
+	echo "    Start point"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 198.51.100.2 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv4 no linkdown flag"
+	$IP -6 route get fibmatch 2001:db8:1::2 | \
+		grep -q "linkdown"
+	log_test $? 1 "IPv6 no linkdown flag"
+
+	set -e
+	$IP link set dev dummy0 carrier off
+	sleep 1
+	set +e
+
+	echo "    Carrier down"
+	$IP route get fibmatch 198.51.100.2 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 198.51.100.2 | \
+		grep -q "linkdown"
+	log_test $? 0 "IPv4 linkdown flag set"
+	$IP -6 route get fibmatch 2001:db8:1::2 | \
+		grep -q "linkdown"
+	log_test $? 0 "IPv6 linkdown flag set"
+
+	set -e
+	$IP address add 192.0.2.1/24 dev dummy0
+	$IP -6 address add 2001:db8:2::1/64 dev dummy0
+	set +e
+
+	echo "    Second address added with carrier down"
+	$IP route get fibmatch 192.0.2.2 &> /dev/null
+	log_test $? 0 "IPv4 fibmatch"
+	$IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null
+	log_test $? 0 "IPv6 fibmatch"
+
+	$IP route get fibmatch 192.0.2.2 | \
+		grep -q "linkdown"
+	log_test $? 0 "IPv4 linkdown flag set"
+	$IP -6 route get fibmatch 2001:db8:2::2 | \
+		grep -q "linkdown"
+	log_test $? 0 "IPv6 linkdown flag set"
+
+	cleanup
+}
+
+fib_carrier_test()
+{
+	fib_carrier_local_test
+	fib_carrier_unicast_test
+}
+
+fib_rp_filter_test()
+{
+	echo
+	echo "IPv4 rp_filter tests"
+
+	setup
+
+	set -e
+	setup_ns ns2
+
+	$IP link add name veth1 type veth peer name veth2
+	$IP link set dev veth2 netns $ns2
+	$IP address add 192.0.2.1/24 dev veth1
+	ip -netns $ns2 address add 192.0.2.1/24 dev veth2
+	$IP link set dev veth1 up
+	ip -netns $ns2 link set dev veth2 up
+
+	$IP link set dev lo address 52:54:00:6a:c7:5e
+	$IP link set dev veth1 address 52:54:00:6a:c7:5e
+	ip -netns $ns2 link set dev lo address 52:54:00:6a:c7:5e
+	ip -netns $ns2 link set dev veth2 address 52:54:00:6a:c7:5e
+
+	# 1. (ns2) redirect lo's egress to veth2's egress
+	ip netns exec $ns2 tc qdisc add dev lo parent root handle 1: fq_codel
+	ip netns exec $ns2 tc filter add dev lo parent 1: protocol arp basic \
+		action mirred egress redirect dev veth2
+	ip netns exec $ns2 tc filter add dev lo parent 1: protocol ip basic \
+		action mirred egress redirect dev veth2
+
+	# 2. (ns1) redirect veth1's ingress to lo's ingress
+	$NS_EXEC tc qdisc add dev veth1 ingress
+	$NS_EXEC tc filter add dev veth1 ingress protocol arp basic \
+		action mirred ingress redirect dev lo
+	$NS_EXEC tc filter add dev veth1 ingress protocol ip basic \
+		action mirred ingress redirect dev lo
+
+	# 3. (ns1) redirect lo's egress to veth1's egress
+	$NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel
+	$NS_EXEC tc filter add dev lo parent 1: protocol arp basic \
+		action mirred egress redirect dev veth1
+	$NS_EXEC tc filter add dev lo parent 1: protocol ip basic \
+		action mirred egress redirect dev veth1
+
+	# 4. (ns2) redirect veth2's ingress to lo's ingress
+	ip netns exec $ns2 tc qdisc add dev veth2 ingress
+	ip netns exec $ns2 tc filter add dev veth2 ingress protocol arp basic \
+		action mirred ingress redirect dev lo
+	ip netns exec $ns2 tc filter add dev veth2 ingress protocol ip basic \
+		action mirred ingress redirect dev lo
+
+	$NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1
+	$NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1
+	$NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1
+	ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1
+	ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.accept_local=1
+	ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1
+	set +e
+
+	run_cmd "ip netns exec $ns2 ping -w1 -c1 192.0.2.1"
+	log_test $? 0 "rp_filter passes local packets"
+
+	run_cmd "ip netns exec $ns2 ping -w1 -c1 127.0.0.1"
+	log_test $? 0 "rp_filter passes loopback packets"
+
+	cleanup
+}
+
+################################################################################
+# Tests on nexthop spec
+
+# run 'ip route add' with given spec
+add_rt()
+{
+	local desc="$1"
+	local erc=$2
+	local vrf=$3
+	local pfx=$4
+	local gw=$5
+	local dev=$6
+	local cmd out rc
+
+	[ "$vrf" = "-" ] && vrf="default"
+	[ -n "$gw" ] && gw="via $gw"
+	[ -n "$dev" ] && dev="dev $dev"
+
+	cmd="$IP route add vrf $vrf $pfx $gw $dev"
+	if [ "$VERBOSE" = "1" ]; then
+		printf "\n    COMMAND: $cmd\n"
+	fi
+
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+	log_test $rc $erc "$desc"
+}
+
+fib4_nexthop()
+{
+	echo
+	echo "IPv4 nexthop tests"
+
+	echo "<<< write me >>>"
+}
+
+fib6_nexthop()
+{
+	local lldummy=$(get_linklocal dummy0)
+	local llv1=$(get_linklocal dummy0)
+
+	if [ -z "$lldummy" ]; then
+		echo "Failed to get linklocal address for dummy0"
+		return 1
+	fi
+	if [ -z "$llv1" ]; then
+		echo "Failed to get linklocal address for veth1"
+		return 1
+	fi
+
+	echo
+	echo "IPv6 nexthop tests"
+
+	add_rt "Directly connected nexthop, unicast address" 0 \
+		- 2001:db8:101::/64 2001:db8:1::2
+	add_rt "Directly connected nexthop, unicast address with device" 0 \
+		- 2001:db8:102::/64 2001:db8:1::2 "dummy0"
+	add_rt "Gateway is linklocal address" 0 \
+		- 2001:db8:103::1/64 $llv1 "veth0"
+
+	# fails because LL address requires a device
+	add_rt "Gateway is linklocal address, no device" 2 \
+		- 2001:db8:104::1/64 $llv1
+
+	# local address can not be a gateway
+	add_rt "Gateway can not be local unicast address" 2 \
+		- 2001:db8:105::/64 2001:db8:1::1
+	add_rt "Gateway can not be local unicast address, with device" 2 \
+		- 2001:db8:106::/64 2001:db8:1::1 "dummy0"
+	add_rt "Gateway can not be a local linklocal address" 2 \
+		- 2001:db8:107::1/64 $lldummy "dummy0"
+
+	# VRF tests
+	add_rt "Gateway can be local address in a VRF" 0 \
+		- 2001:db8:108::/64 2001:db8:51::2
+	add_rt "Gateway can be local address in a VRF, with device" 0 \
+		- 2001:db8:109::/64 2001:db8:51::2 "veth0"
+	add_rt "Gateway can be local linklocal address in a VRF" 0 \
+		- 2001:db8:110::1/64 $llv1 "veth0"
+
+	add_rt "Redirect to VRF lookup" 0 \
+		- 2001:db8:111::/64 "" "red"
+
+	add_rt "VRF route, gateway can be local address in default VRF" 0 \
+		red 2001:db8:112::/64 2001:db8:51::1
+
+	# local address in same VRF fails
+	add_rt "VRF route, gateway can not be a local address" 2 \
+		red 2001:db8:113::1/64 2001:db8:2::1
+	add_rt "VRF route, gateway can not be a local addr with device" 2 \
+		red 2001:db8:114::1/64 2001:db8:2::1 "dummy1"
+}
+
+# Default VRF:
+#   dummy0 - 198.51.100.1/24 2001:db8:1::1/64
+#   veth0  - 192.0.2.1/24    2001:db8:51::1/64
+#
+# VRF red:
+#   dummy1 - 192.168.2.1/24 2001:db8:2::1/64
+#   veth1  - 192.0.2.2/24   2001:db8:51::2/64
+#
+#  [ dummy0   veth0 ]--[ veth1   dummy1 ]
+
+fib_nexthop_test()
+{
+	setup
+
+	set -e
+
+	$IP -4 rule add pref 32765 table local
+	$IP -4 rule del pref 0
+	$IP -6 rule add pref 32765 table local
+	$IP -6 rule del pref 0
+
+	$IP link add red type vrf table 1
+	$IP link set red up
+	$IP -4 route add vrf red unreachable default metric 4278198272
+	$IP -6 route add vrf red unreachable default metric 4278198272
+
+	$IP link add veth0 type veth peer name veth1
+	$IP link set dev veth0 up
+	$IP address add 192.0.2.1/24 dev veth0
+	$IP -6 address add 2001:db8:51::1/64 dev veth0
+
+	$IP link set dev veth1 vrf red up
+	$IP address add 192.0.2.2/24 dev veth1
+	$IP -6 address add 2001:db8:51::2/64 dev veth1
+
+	$IP link add dummy1 type dummy
+	$IP link set dev dummy1 vrf red up
+	$IP address add 192.168.2.1/24 dev dummy1
+	$IP -6 address add 2001:db8:2::1/64 dev dummy1
+	set +e
+
+	sleep 1
+	fib4_nexthop
+	fib6_nexthop
+
+	(
+	$IP link del dev dummy1
+	$IP link del veth0
+	$IP link del red
+	) 2>/dev/null
+	cleanup
+}
+
+fib6_notify_test()
+{
+	setup
+
+	echo
+	echo "Fib6 info length calculation in route notify test"
+	set -e
+
+	for i in 10 20 30 40 50 60 70;
+	do
+		$IP link add dummy_$i type dummy
+		$IP link set dev dummy_$i up
+		$IP -6 address add 2001:$i::1/64 dev dummy_$i
+	done
+
+	$NS_EXEC ip monitor route &> errors.txt &
+	sleep 2
+
+	$IP -6 route add 2001::/64 \
+                nexthop via 2001:10::2 dev dummy_10 \
+                nexthop encap ip6 dst 2002::20 via 2001:20::2 dev dummy_20 \
+                nexthop encap ip6 dst 2002::30 via 2001:30::2 dev dummy_30 \
+                nexthop encap ip6 dst 2002::40 via 2001:40::2 dev dummy_40 \
+                nexthop encap ip6 dst 2002::50 via 2001:50::2 dev dummy_50 \
+                nexthop encap ip6 dst 2002::60 via 2001:60::2 dev dummy_60 \
+                nexthop encap ip6 dst 2002::70 via 2001:70::2 dev dummy_70
+
+	set +e
+
+	err=`cat errors.txt |grep "Message too long"`
+	if [ -z "$err" ];then
+		ret=0
+	else
+		ret=1
+	fi
+
+	log_test $ret 0 "ipv6 route add notify"
+
+	kill_process %%
+
+	#rm errors.txt
+
+	cleanup &> /dev/null
+}
+
+
+fib_notify_test()
+{
+	setup
+
+	echo
+	echo "Fib4 info length calculation in route notify test"
+
+	set -e
+
+	for i in 10 20 30 40 50 60 70;
+	do
+		$IP link add dummy_$i type dummy
+		$IP link set dev dummy_$i up
+		$IP address add 20.20.$i.2/24 dev dummy_$i
+	done
+
+	$NS_EXEC ip monitor route &> errors.txt &
+	sleep 2
+
+        $IP route add 10.0.0.0/24 \
+                nexthop via 20.20.10.1 dev dummy_10 \
+                nexthop encap ip dst 192.168.10.20 via 20.20.20.1 dev dummy_20 \
+                nexthop encap ip dst 192.168.10.30 via 20.20.30.1 dev dummy_30 \
+                nexthop encap ip dst 192.168.10.40 via 20.20.40.1 dev dummy_40 \
+                nexthop encap ip dst 192.168.10.50 via 20.20.50.1 dev dummy_50 \
+                nexthop encap ip dst 192.168.10.60 via 20.20.60.1 dev dummy_60 \
+                nexthop encap ip dst 192.168.10.70 via 20.20.70.1 dev dummy_70
+
+	set +e
+
+	err=`cat errors.txt |grep "Message too long"`
+	if [ -z "$err" ];then
+		ret=0
+	else
+		ret=1
+	fi
+
+	log_test $ret 0 "ipv4 route add notify"
+
+	kill_process %%
+
+	rm  errors.txt
+
+	cleanup &> /dev/null
+}
+
+# Create a new dummy_10 to remove all associated routes.
+reset_dummy_10()
+{
+	$IP link del dev dummy_10
+
+	$IP link add dummy_10 type dummy
+	$IP link set dev dummy_10 up
+	$IP -6 address add 2001:10::1/64 dev dummy_10
+}
+
+check_rt_num()
+{
+    local expected=$1
+    local num=$2
+
+    if [ $num -ne $expected ]; then
+	echo "FAIL: Expected $expected routes, got $num"
+	ret=1
+    else
+	ret=0
+    fi
+}
+
+check_rt_num_clean()
+{
+    local expected=$1
+    local num=$2
+
+    if [ $num -ne $expected ]; then
+	log_test 1 0 "expected $expected routes, got $num"
+	set +e
+	cleanup &> /dev/null
+	return 1
+    fi
+    return 0
+}
+
+fib6_gc_test()
+{
+	setup
+
+	echo
+	echo "Fib6 garbage collection test"
+	set -e
+
+	EXPIRE=5
+	GC_WAIT_TIME=$((EXPIRE * 2 + 2))
+
+	# Check expiration of routes every $EXPIRE seconds (GC)
+	$NS_EXEC sysctl -wq net.ipv6.route.gc_interval=$EXPIRE
+
+	$IP link add dummy_10 type dummy
+	$IP link set dev dummy_10 up
+	$IP -6 address add 2001:10::1/64 dev dummy_10
+
+	$NS_EXEC sysctl -wq net.ipv6.route.flush=1
+
+	# Temporary routes
+	for i in $(seq 1 5); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route add 2001:20::$i \
+		via 2001:10::2 dev dummy_10 expires $EXPIRE
+	done
+	sleep $GC_WAIT_TIME
+	$NS_EXEC sysctl -wq net.ipv6.route.flush=1
+	check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
+	log_test $ret 0 "ipv6 route garbage collection"
+
+	reset_dummy_10
+
+	# Permanent routes
+	for i in $(seq 1 5); do
+	    $IP -6 route add 2001:30::$i \
+		via 2001:10::2 dev dummy_10
+	done
+	# Temporary routes
+	for i in $(seq 1 5); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route add 2001:20::$i \
+		via 2001:10::2 dev dummy_10 expires $EXPIRE
+	done
+	# Wait for GC
+	sleep $GC_WAIT_TIME
+	check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
+	log_test $ret 0 "ipv6 route garbage collection (with permanent routes)"
+
+	reset_dummy_10
+
+	# Permanent routes
+	for i in $(seq 1 5); do
+	    $IP -6 route add 2001:20::$i \
+		via 2001:10::2 dev dummy_10
+	done
+	# Replace with temporary routes
+	for i in $(seq 1 5); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route replace 2001:20::$i \
+		via 2001:10::2 dev dummy_10 expires $EXPIRE
+	done
+	# Wait for GC
+	sleep $GC_WAIT_TIME
+	check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
+	log_test $ret 0 "ipv6 route garbage collection (replace with expires)"
+
+	reset_dummy_10
+
+	# Temporary routes
+	for i in $(seq 1 5); do
+	    # Expire route after $EXPIRE seconds
+	    $IP -6 route add 2001:20::$i \
+		via 2001:10::2 dev dummy_10 expires $EXPIRE
+	done
+	# Replace with permanent routes
+	for i in $(seq 1 5); do
+	    $IP -6 route replace 2001:20::$i \
+		via 2001:10::2 dev dummy_10
+	done
+	check_rt_num_clean 0 $($IP -6 route list |grep expires|wc -l) || return
+
+	# Wait for GC
+	sleep $GC_WAIT_TIME
+	check_rt_num 5 $($IP -6 route list |grep -v expires|grep 2001:20::|wc -l)
+	log_test $ret 0 "ipv6 route garbage collection (replace with permanent)"
+
+	# ra6 is required for the next test. (ipv6toolkit)
+	if [ ! -x "$(command -v ra6)" ]; then
+	    echo "SKIP: ra6 not found."
+	    set +e
+	    cleanup &> /dev/null
+	    return
+	fi
+
+	# Delete dummy_10 and remove all routes
+	$IP link del dev dummy_10
+
+	# Create a pair of veth devices to send a RA message from one
+	# device to another.
+	$IP link add veth1 type veth peer name veth2
+	$IP link set dev veth1 up
+	$IP link set dev veth2 up
+	$IP -6 address add 2001:10::1/64 dev veth1 nodad
+	$IP -6 address add 2001:10::2/64 dev veth2 nodad
+
+	# Make veth1 ready to receive RA messages.
+	$NS_EXEC sysctl -wq net.ipv6.conf.veth1.accept_ra=2
+
+	# Send a RA message with a route from veth2 to veth1.
+	$NS_EXEC ra6 -i veth2 -d 2001:10::1 -t $EXPIRE
+
+	# Wait for the RA message.
+	sleep 1
+
+	# systemd may mess up the test.  You syould make sure that
+	# systemd-networkd.service and systemd-networkd.socket are stopped.
+	check_rt_num_clean 1 $($IP -6 route list|grep expires|wc -l) || return
+
+	# Wait for GC
+	sleep $GC_WAIT_TIME
+	check_rt_num 0 $($IP -6 route list |grep expires|wc -l)
+	log_test $ret 0 "ipv6 route garbage collection (RA message)"
+
+	set +e
+
+	cleanup &> /dev/null
+}
+
+fib_suppress_test()
+{
+	echo
+	echo "FIB rule with suppress_prefixlength"
+	setup
+
+	$IP link add dummy1 type dummy
+	$IP link set dummy1 up
+	$IP -6 route add default dev dummy1
+	$IP -6 rule add table main suppress_prefixlength 0
+	ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1
+	$IP -6 rule del table main suppress_prefixlength 0
+	$IP link del dummy1
+
+	# If we got here without crashing, we're good.
+	log_test 0 0 "FIB rule suppress test"
+
+	cleanup
+}
+
+################################################################################
+# Tests on route add and replace
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+check_expected()
+{
+	local out="$1"
+	local expected="$2"
+	local rc=0
+
+	[ "${out}" = "${expected}" ] && return 0
+
+	if [ -z "${out}" ]; then
+		if [ "$VERBOSE" = "1" ]; then
+			printf "\nNo route entry found\n"
+			printf "Expected:\n"
+			printf "    ${expected}\n"
+		fi
+		return 1
+	fi
+
+	# tricky way to convert output to 1-line without ip's
+	# messy '\'; this drops all extra white space
+	out=$(echo ${out})
+	if [ "${out}" != "${expected}" ]; then
+		rc=1
+		if [ "${VERBOSE}" = "1" ]; then
+			printf "    Unexpected route entry. Have:\n"
+			printf "        ${out}\n"
+			printf "    Expected:\n"
+			printf "        ${expected}\n\n"
+		fi
+	fi
+
+	return $rc
+}
+
+# add route for a prefix, flushing any existing routes first
+# expected to be the first step of a test
+add_route6()
+{
+	local pfx="$1"
+	local nh="$2"
+	local out
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo
+		echo "    ##################################################"
+		echo
+	fi
+
+	run_cmd "$IP -6 ro flush ${pfx}"
+	[ $? -ne 0 ] && exit 1
+
+	out=$($IP -6 ro ls match ${pfx})
+	if [ -n "$out" ]; then
+		echo "Failed to flush routes for prefix used for tests."
+		exit 1
+	fi
+
+	run_cmd "$IP -6 ro add ${pfx} ${nh}"
+	if [ $? -ne 0 ]; then
+		echo "Failed to add initial route for test."
+		exit 1
+	fi
+}
+
+# add initial route - used in replace route tests
+add_initial_route6()
+{
+	add_route6 "2001:db8:104::/64" "$1"
+}
+
+check_route6()
+{
+	local pfx
+	local expected="$1"
+	local out
+	local rc=0
+
+	set -- $expected
+	pfx=$1
+
+	out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//')
+	check_expected "${out}" "${expected}"
+}
+
+route_cleanup()
+{
+	$IP li del red 2>/dev/null
+	$IP li del dummy1 2>/dev/null
+	$IP li del veth1 2>/dev/null
+	$IP li del veth3 2>/dev/null
+
+	cleanup &> /dev/null
+}
+
+route_setup()
+{
+	route_cleanup
+	setup
+
+	[ "${VERBOSE}" = "1" ] && set -x
+	set -e
+
+	setup_ns ns2
+	ip netns exec $ns2 sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec $ns2 sysctl -qw net.ipv6.conf.all.forwarding=1
+
+	$IP li add veth1 type veth peer name veth2
+	$IP li add veth3 type veth peer name veth4
+
+	$IP li set veth1 up
+	$IP li set veth3 up
+	$IP li set veth2 netns $ns2 up
+	$IP li set veth4 netns $ns2 up
+	ip -netns $ns2 li add dummy1 type dummy
+	ip -netns $ns2 li set dummy1 up
+
+	$IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad
+	$IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad
+	$IP addr add 172.16.101.1/24 dev veth1
+	$IP addr add 172.16.103.1/24 dev veth3
+
+	ip -netns $ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad
+	ip -netns $ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad
+	ip -netns $ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad
+
+	ip -netns $ns2 addr add 172.16.101.2/24 dev veth2
+	ip -netns $ns2 addr add 172.16.103.2/24 dev veth4
+	ip -netns $ns2 addr add 172.16.104.1/24 dev dummy1
+
+	set +e
+}
+
+forwarding_cleanup()
+{
+	cleanup_ns $ns3
+
+	route_cleanup
+}
+
+# extend route_setup with an ns3 reachable through ns2 over both devices
+forwarding_setup()
+{
+	forwarding_cleanup
+
+	route_setup
+
+	setup_ns ns3
+
+	ip link add veth5 netns $ns3 type veth peer name veth6 netns $ns2
+	ip -netns $ns3 link set veth5 up
+	ip -netns $ns2 link set veth6 up
+
+	ip -netns $ns3 -4 addr add dev veth5 172.16.105.1/24
+	ip -netns $ns2 -4 addr add dev veth6 172.16.105.2/24
+	ip -netns $ns3 -4 route add 172.16.100.0/22 via 172.16.105.2
+
+	ip -netns $ns3 -6 addr add dev veth5 2001:db8:105::1/64 nodad
+	ip -netns $ns2 -6 addr add dev veth6 2001:db8:105::2/64 nodad
+	ip -netns $ns3 -6 route add 2001:db8:101::/33 via 2001:db8:105::2
+}
+
+# assumption is that basic add of a single path route works
+# otherwise just adding an address on an interface is broken
+ipv6_rt_add()
+{
+	local rc
+
+	echo
+	echo "IPv6 route add / append tests"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2"
+	log_test $? 2 "Attempt to add duplicate route - gw"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3"
+	log_test $? 2 "Attempt to add duplicate route - dev only"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64"
+	log_test $? 2 "Attempt to add duplicate route - reject route"
+
+	# route append with same prefix adds a new route
+	# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
+	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2"
+	check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+	log_test $? 0 "Append nexthop to existing route - gw"
+
+	# insert mpath directly
+	add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+	log_test $? 0 "Add multipath route"
+
+	add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	log_test $? 2 "Attempt to add duplicate multipath route"
+
+	# insert of a second route without append but different metric
+	add_route6 "2001:db8:104::/64" "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256"
+		rc=$?
+	fi
+	log_test $rc 0 "Route add with different metrics"
+
+	run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
+		rc=$?
+	fi
+	log_test $rc 0 "Route delete with metric"
+}
+
+ipv6_rt_replace_single()
+{
+	# single path with single path
+	#
+	add_initial_route6 "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2"
+	check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
+	log_test $? 0 "Single path with single path"
+
+	# single path with multipath
+	#
+	add_initial_route6 "nexthop via 2001:db8:101::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2"
+	check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+	log_test $? 0 "Single path with multipath"
+
+	# single path with single path using MULTIPATH attribute
+	#
+	add_initial_route6 "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2"
+	check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024"
+	log_test $? 0 "Single path with single path via multipath attribute"
+
+	# route replace fails - invalid nexthop
+	add_initial_route6 "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2"
+	if [ $? -eq 0 ]; then
+		# previous command is expected to fail so if it returns 0
+		# that means the test failed.
+		log_test 0 1 "Invalid nexthop"
+	else
+		check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024"
+		log_test $? 0 "Invalid nexthop"
+	fi
+
+	# replace non-existent route
+	# - note use of change versus replace since ip adds NLM_F_CREATE
+	#   for replace
+	add_initial_route6 "via 2001:db8:101::2"
+	run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2"
+	log_test $? 2 "Single path - replace of non-existent route"
+}
+
+ipv6_rt_replace_mpath()
+{
+	# multipath with multipath
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
+	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1"
+	log_test $? 0 "Multipath with multipath"
+
+	# multipath with single
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3"
+	check_route6  "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
+	log_test $? 0 "Multipath with single path"
+
+	# multipath with single
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3"
+	check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024"
+	log_test $? 0 "Multipath with single path via multipath attribute"
+
+	# multipath with dev-only
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1"
+	check_route6 "2001:db8:104::/64 dev veth1 metric 1024"
+	log_test $? 0 "Multipath with dev-only"
+
+	# route replace fails - invalid nexthop 1
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3"
+	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+	log_test $? 0 "Multipath - invalid first nexthop"
+
+	# route replace fails - invalid nexthop 2
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3"
+	check_route6  "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+	log_test $? 0 "Multipath - invalid second nexthop"
+
+	# multipath non-existent route
+	add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3"
+	log_test $? 2 "Multipath - replace of non-existent route"
+}
+
+ipv6_rt_replace()
+{
+	echo
+	echo "IPv6 route replace tests"
+
+	ipv6_rt_replace_single
+	ipv6_rt_replace_mpath
+}
+
+ipv6_rt_dsfield()
+{
+	echo
+	echo "IPv6 route with dsfield tests"
+
+	run_cmd "$IP -6 route flush 2001:db8:102::/64"
+
+	# IPv6 doesn't support routing based on dsfield
+	run_cmd "$IP -6 route add 2001:db8:102::/64 dsfield 0x04 via 2001:db8:101::2"
+	log_test $? 2 "Reject route with dsfield"
+}
+
+ipv6_route_test()
+{
+	route_setup
+
+	ipv6_rt_add
+	ipv6_rt_replace
+	ipv6_rt_dsfield
+
+	route_cleanup
+}
+
+ip_addr_metric_check()
+{
+	ip addr help 2>&1 | grep -q metric
+	if [ $? -ne 0 ]; then
+		echo "iproute2 command does not support metric for addresses. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+ipv6_addr_metric_test()
+{
+	local rc
+
+	echo
+	echo "IPv6 prefix route tests"
+
+	ip_addr_metric_check || return 1
+
+	setup
+
+	set -e
+	$IP li add dummy1 type dummy
+	$IP li add dummy2 type dummy
+	$IP li set dummy1 up
+	$IP li set dummy2 up
+
+	# default entry is metric 256
+	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64"
+	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64"
+	set +e
+
+	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256"
+	log_test $? 0 "Default metric"
+
+	set -e
+	run_cmd "$IP -6 addr flush dev dummy1"
+	run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257"
+	set +e
+
+	check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257"
+	log_test $? 0 "User specified metric on first device"
+
+	set -e
+	run_cmd "$IP -6 addr flush dev dummy2"
+	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258"
+	set +e
+
+	check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258"
+	log_test $? 0 "User specified metric on second device"
+
+	run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258"
+		rc=$?
+	fi
+	log_test $rc 0 "Delete of address on first device"
+
+	run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
+		rc=$?
+	fi
+	log_test $rc 0 "Modify metric of address"
+
+	# verify prefix route removed on down
+	run_cmd "ip netns exec $ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1"
+	run_cmd "$IP li set dev dummy2 down"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		out=$($IP -6 ro ls match 2001:db8:104::/64)
+		check_expected "${out}" ""
+		rc=$?
+	fi
+	log_test $rc 0 "Prefix route removed on link down"
+
+	# verify prefix route re-inserted with assigned metric
+	run_cmd "$IP li set dev dummy2 up"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259"
+		rc=$?
+	fi
+	log_test $rc 0 "Prefix route with metric on link up"
+
+	# verify peer metric added correctly
+	set -e
+	run_cmd "$IP -6 addr flush dev dummy2"
+	run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260"
+	set +e
+
+	check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260"
+	log_test $? 0 "Set metric with peer route on local side"
+	check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260"
+	log_test $? 0 "Set metric with peer route on peer side"
+
+	set -e
+	run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261"
+	set +e
+
+	check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261"
+	log_test $? 0 "Modify metric and peer address on local side"
+	check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261"
+	log_test $? 0 "Modify metric and peer address on peer side"
+
+	$IP li del dummy1
+	$IP li del dummy2
+	cleanup
+}
+
+ipv6_route_metrics_test()
+{
+	local rc
+
+	echo
+	echo "IPv6 routes with metrics"
+
+	route_setup
+
+	#
+	# single path with metrics
+	#
+	run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6  "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400"
+		rc=$?
+	fi
+	log_test $rc 0 "Single path route with mtu metric"
+
+
+	#
+	# multipath via separate routes with metrics
+	#
+	run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400"
+	run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+		rc=$?
+	fi
+	log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first"
+
+	# second route is coalesced to first to make a multipath route.
+	# MTU of the second path is hidden from display!
+	run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2"
+	run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+		rc=$?
+	fi
+	log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd"
+
+	run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2"
+	if [ $? -eq 0 ]; then
+		check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400"
+		log_test $? 0 "    MTU of second leg"
+	fi
+
+	#
+	# multipath with metrics
+	#
+	run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route6  "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1"
+		rc=$?
+	fi
+	log_test $rc 0 "Multipath route with mtu metric"
+
+	$IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300
+	run_cmd "ip netns exec $ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1"
+	log_test $? 0 "Using route with mtu metric"
+
+	run_cmd "$IP -6 ro add 2001:db8:114::/64 via  2001:db8:101::2  congctl lock foo"
+	log_test $? 2 "Invalid metric (fails metric_convert)"
+
+	route_cleanup
+}
+
+fib6_ra_to_static()
+{
+	setup
+
+	echo
+	echo "Fib6 route promotion from RA-learned to static test"
+	set -e
+
+	# ra6 is required for the test. (ipv6toolkit)
+	if [ ! -x "$(command -v ra6)" ]; then
+	    echo "SKIP: ra6 not found."
+	    set +e
+	    cleanup &> /dev/null
+	    return
+	fi
+
+	# Create a pair of veth devices to send a RA message from one
+	# device to another.
+	$IP link add veth1 type veth peer name veth2
+	$IP link set dev veth1 up
+	$IP link set dev veth2 up
+	$IP -6 address add 2001:10::1/64 dev veth1 nodad
+	$IP -6 address add 2001:10::2/64 dev veth2 nodad
+
+	# Make veth1 ready to receive RA messages.
+	$NS_EXEC sysctl -wq net.ipv6.conf.veth1.accept_ra=2
+
+	# Send a RA message with a prefix from veth2.
+	$NS_EXEC ra6 -i veth2 -d 2001:10::1 -P 2001:12::/64\#LA\#120\#60
+
+	# Wait for the RA message.
+	sleep 1
+
+	# systemd may mess up the test. Make sure that
+	# systemd-networkd.service and systemd-networkd.socket are stopped.
+	check_rt_num_clean 2 $($IP -6 route list|grep expires|wc -l) || return
+
+	# Configure static address on the same prefix
+	$IP -6 address add 2001:12::dead/64 dev veth1 nodad
+
+	# On-link route won't expire anymore, default route still owned by RA
+	check_rt_num 1 $($IP -6 route list |grep expires|wc -l)
+
+	# Send a second RA message with a prefix from veth2.
+	$NS_EXEC ra6 -i veth2 -d 2001:10::1 -P 2001:12::/64\#LA\#120\#60
+	sleep 1
+
+	# Expire is not back, on-link route is still static
+	check_rt_num 1 $($IP -6 route list |grep expires|wc -l)
+
+	$IP -6 address del 2001:12::dead/64 dev veth1 nodad
+
+	# Expire is back, on-link route is now owned by RA again
+	check_rt_num 2 $($IP -6 route list |grep expires|wc -l)
+
+	log_test $ret 0 "ipv6 promote RA route to static"
+
+	set +e
+
+	cleanup &> /dev/null
+}
+
+# add route for a prefix, flushing any existing routes first
+# expected to be the first step of a test
+add_route()
+{
+	local pfx="$1"
+	local nh="$2"
+	local out
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo
+		echo "    ##################################################"
+		echo
+	fi
+
+	run_cmd "$IP ro flush ${pfx}"
+	[ $? -ne 0 ] && exit 1
+
+	out=$($IP ro ls match ${pfx})
+	if [ -n "$out" ]; then
+		echo "Failed to flush routes for prefix used for tests."
+		exit 1
+	fi
+
+	run_cmd "$IP ro add ${pfx} ${nh}"
+	if [ $? -ne 0 ]; then
+		echo "Failed to add initial route for test."
+		exit 1
+	fi
+}
+
+# add initial route - used in replace route tests
+add_initial_route()
+{
+	add_route "172.16.104.0/24" "$1"
+}
+
+check_route()
+{
+	local pfx
+	local expected="$1"
+	local out
+
+	set -- $expected
+	pfx=$1
+	[ "${pfx}" = "unreachable" ] && pfx=$2
+
+	out=$($IP ro ls match ${pfx})
+	check_expected "${out}" "${expected}"
+}
+
+# assumption is that basic add of a single path route works
+# otherwise just adding an address on an interface is broken
+ipv4_rt_add()
+{
+	local rc
+
+	echo
+	echo "IPv4 route add / append tests"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2"
+	log_test $? 2 "Attempt to add duplicate route - gw"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro add 172.16.104.0/24 dev veth3"
+	log_test $? 2 "Attempt to add duplicate route - dev only"
+
+	# route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro add unreachable 172.16.104.0/24"
+	log_test $? 2 "Attempt to add duplicate route - reject route"
+
+	# iproute2 prepend only sets NLM_F_CREATE
+	# - adds a new route; does NOT convert existing route to ECMP
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2"
+	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1"
+	log_test $? 0 "Add new nexthop for existing prefix"
+
+	# route append with same prefix adds a new route
+	# - iproute2 sets NLM_F_CREATE | NLM_F_APPEND
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
+	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3"
+	log_test $? 0 "Append nexthop to existing route - gw"
+
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
+	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link"
+	log_test $? 0 "Append nexthop to existing route - dev only"
+
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro append unreachable 172.16.104.0/24"
+	check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24"
+	log_test $? 0 "Append nexthop to existing route - reject route"
+
+	run_cmd "$IP ro flush 172.16.104.0/24"
+	run_cmd "$IP ro add unreachable 172.16.104.0/24"
+	run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2"
+	check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3"
+	log_test $? 0 "Append nexthop to existing reject route - gw"
+
+	run_cmd "$IP ro flush 172.16.104.0/24"
+	run_cmd "$IP ro add unreachable 172.16.104.0/24"
+	run_cmd "$IP ro append 172.16.104.0/24 dev veth3"
+	check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link"
+	log_test $? 0 "Append nexthop to existing reject route - dev only"
+
+	# insert mpath directly
+	add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+	log_test $? 0 "add multipath route"
+
+	add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	log_test $? 2 "Attempt to add duplicate multipath route"
+
+	# insert of a second route without append but different metric
+	add_route "172.16.104.0/24" "via 172.16.101.2"
+	run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256"
+		rc=$?
+	fi
+	log_test $rc 0 "Route add with different metrics"
+
+	run_cmd "$IP ro del 172.16.104.0/24 metric 512"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256"
+		rc=$?
+	fi
+	log_test $rc 0 "Route delete with metric"
+}
+
+ipv4_rt_replace_single()
+{
+	# single path with single path
+	#
+	add_initial_route "via 172.16.101.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2"
+	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
+	log_test $? 0 "Single path with single path"
+
+	# single path with multipath
+	#
+	add_initial_route "nexthop via 172.16.101.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2"
+	check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+	log_test $? 0 "Single path with multipath"
+
+	# single path with reject
+	#
+	add_initial_route "nexthop via 172.16.101.2"
+	run_cmd "$IP ro replace unreachable 172.16.104.0/24"
+	check_route "unreachable 172.16.104.0/24"
+	log_test $? 0 "Single path with reject route"
+
+	# single path with single path using MULTIPATH attribute
+	#
+	add_initial_route "via 172.16.101.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2"
+	check_route "172.16.104.0/24 via 172.16.103.2 dev veth3"
+	log_test $? 0 "Single path with single path via multipath attribute"
+
+	# route replace fails - invalid nexthop
+	add_initial_route "via 172.16.101.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2"
+	if [ $? -eq 0 ]; then
+		# previous command is expected to fail so if it returns 0
+		# that means the test failed.
+		log_test 0 1 "Invalid nexthop"
+	else
+		check_route "172.16.104.0/24 via 172.16.101.2 dev veth1"
+		log_test $? 0 "Invalid nexthop"
+	fi
+
+	# replace non-existent route
+	# - note use of change versus replace since ip adds NLM_F_CREATE
+	#   for replace
+	add_initial_route "via 172.16.101.2"
+	run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2"
+	log_test $? 2 "Single path - replace of non-existent route"
+}
+
+ipv4_rt_replace_mpath()
+{
+	# multipath with multipath
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
+	check_route  "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1"
+	log_test $? 0 "Multipath with multipath"
+
+	# multipath with single
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3"
+	check_route  "172.16.104.0/24 via 172.16.101.3 dev veth1"
+	log_test $? 0 "Multipath with single path"
+
+	# multipath with single
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3"
+	check_route "172.16.104.0/24 via 172.16.101.3 dev veth1"
+	log_test $? 0 "Multipath with single path via multipath attribute"
+
+	# multipath with reject
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace unreachable 172.16.104.0/24"
+	check_route "unreachable 172.16.104.0/24"
+	log_test $? 0 "Multipath with reject route"
+
+	# route replace fails - invalid nexthop 1
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3"
+	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+	log_test $? 0 "Multipath - invalid first nexthop"
+
+	# route replace fails - invalid nexthop 2
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3"
+	check_route  "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+	log_test $? 0 "Multipath - invalid second nexthop"
+
+	# multipath non-existent route
+	add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3"
+	log_test $? 2 "Multipath - replace of non-existent route"
+}
+
+ipv4_rt_replace()
+{
+	echo
+	echo "IPv4 route replace tests"
+
+	ipv4_rt_replace_single
+	ipv4_rt_replace_mpath
+}
+
+# checks that cached input route on VRF port is deleted
+# when VRF is deleted
+ipv4_local_rt_cache()
+{
+	run_cmd "ip addr add 10.0.0.1/32 dev lo"
+	run_cmd "setup_ns test-ns"
+	run_cmd "ip link add veth-outside type veth peer name veth-inside"
+	run_cmd "ip link add vrf-100 type vrf table 1100"
+	run_cmd "ip link set veth-outside master vrf-100"
+	run_cmd "ip link set veth-inside netns $test-ns"
+	run_cmd "ip link set veth-outside up"
+	run_cmd "ip link set vrf-100 up"
+	run_cmd "ip route add 10.1.1.1/32 dev veth-outside table 1100"
+	run_cmd "ip netns exec $test-ns ip link set veth-inside up"
+	run_cmd "ip netns exec $test-ns ip addr add 10.1.1.1/32 dev veth-inside"
+	run_cmd "ip netns exec $test-ns ip route add 10.0.0.1/32 dev veth-inside"
+	run_cmd "ip netns exec $test-ns ip route add default via 10.0.0.1"
+	run_cmd "ip netns exec $test-ns ping 10.0.0.1 -c 1 -i 1"
+	run_cmd "ip link delete vrf-100"
+
+	# if we do not hang test is a success
+	log_test $? 0 "Cached route removed from VRF port device"
+}
+
+ipv4_rt_dsfield()
+{
+	echo
+	echo "IPv4 route with dsfield tests"
+
+	run_cmd "$IP route flush 172.16.102.0/24"
+
+	# New routes should reject dsfield options that interfere with ECN
+	run_cmd "$IP route add 172.16.102.0/24 dsfield 0x01 via 172.16.101.2"
+	log_test $? 2 "Reject route with dsfield 0x01"
+
+	run_cmd "$IP route add 172.16.102.0/24 dsfield 0x02 via 172.16.101.2"
+	log_test $? 2 "Reject route with dsfield 0x02"
+
+	run_cmd "$IP route add 172.16.102.0/24 dsfield 0x03 via 172.16.101.2"
+	log_test $? 2 "Reject route with dsfield 0x03"
+
+	# A generic route that doesn't take DSCP into account
+	run_cmd "$IP route add 172.16.102.0/24 via 172.16.101.2"
+
+	# A more specific route for DSCP 0x10
+	run_cmd "$IP route add 172.16.102.0/24 dsfield 0x10 via 172.16.103.2"
+
+	# DSCP 0x10 should match the specific route, no matter the ECN bits
+	$IP route get fibmatch 172.16.102.1 dsfield 0x10 | \
+		grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
+	log_test $? 0 "IPv4 route with DSCP and ECN:Not-ECT"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x11 | \
+		grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
+	log_test $? 0 "IPv4 route with DSCP and ECN:ECT(1)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x12 | \
+		grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
+	log_test $? 0 "IPv4 route with DSCP and ECN:ECT(0)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x13 | \
+		grep -q "172.16.102.0/24 tos 0x10 via 172.16.103.2"
+	log_test $? 0 "IPv4 route with DSCP and ECN:CE"
+
+	# Unknown DSCP should match the generic route, no matter the ECN bits
+	$IP route get fibmatch 172.16.102.1 dsfield 0x14 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with unknown DSCP and ECN:Not-ECT"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x15 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(1)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x16 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(0)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x17 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with unknown DSCP and ECN:CE"
+
+	# Null DSCP should match the generic route, no matter the ECN bits
+	$IP route get fibmatch 172.16.102.1 dsfield 0x00 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with no DSCP and ECN:Not-ECT"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x01 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(1)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x02 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(0)"
+
+	$IP route get fibmatch 172.16.102.1 dsfield 0x03 | \
+		grep -q "172.16.102.0/24 via 172.16.101.2"
+	log_test $? 0 "IPv4 route with no DSCP and ECN:CE"
+}
+
+ipv4_route_test()
+{
+	route_setup
+
+	ipv4_rt_add
+	ipv4_rt_replace
+	ipv4_local_rt_cache
+	ipv4_rt_dsfield
+
+	route_cleanup
+}
+
+ipv4_addr_metric_test()
+{
+	local rc
+
+	echo
+	echo "IPv4 prefix route tests"
+
+	ip_addr_metric_check || return 1
+
+	setup
+
+	set -e
+	$IP li add dummy1 type dummy
+	$IP li add dummy2 type dummy
+	$IP li set dummy1 up
+	$IP li set dummy2 up
+
+	# default entry is metric 256
+	run_cmd "$IP addr add dev dummy1 172.16.104.1/24"
+	run_cmd "$IP addr add dev dummy2 172.16.104.2/24"
+	set +e
+
+	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2"
+	log_test $? 0 "Default metric"
+
+	set -e
+	run_cmd "$IP addr flush dev dummy1"
+	run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257"
+	set +e
+
+	check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257"
+	log_test $? 0 "User specified metric on first device"
+
+	set -e
+	run_cmd "$IP addr flush dev dummy2"
+	run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258"
+	set +e
+
+	check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
+	log_test $? 0 "User specified metric on second device"
+
+	run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258"
+		rc=$?
+	fi
+	log_test $rc 0 "Delete of address on first device"
+
+	run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
+		rc=$?
+	fi
+	log_test $rc 0 "Modify metric of address"
+
+	# verify prefix route removed on down
+	run_cmd "$IP li set dev dummy2 down"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		out=$($IP ro ls match 172.16.104.0/24)
+		check_expected "${out}" ""
+		rc=$?
+	fi
+	log_test $rc 0 "Prefix route removed on link down"
+
+	# verify prefix route re-inserted with assigned metric
+	run_cmd "$IP li set dev dummy2 up"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259"
+		rc=$?
+	fi
+	log_test $rc 0 "Prefix route with metric on link up"
+
+	# explicitly check for metric changes on edge scenarios
+	run_cmd "$IP addr flush dev dummy2"
+	run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259"
+	run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260"
+		rc=$?
+	fi
+	log_test $rc 0 "Modify metric of .0/24 address"
+
+	run_cmd "$IP addr flush dev dummy2"
+	run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260"
+		rc=$?
+	fi
+	log_test $rc 0 "Set metric of address with peer route"
+
+	run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261"
+		rc=$?
+	fi
+	log_test $rc 0 "Modify metric and peer address for peer route"
+
+	$IP li del dummy1
+	$IP li del dummy2
+	cleanup
+}
+
+ipv4_route_metrics_test()
+{
+	local rc
+
+	echo
+	echo "IPv4 route add / append tests"
+
+	route_setup
+
+	run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400"
+		rc=$?
+	fi
+	log_test $rc 0 "Single path route with mtu metric"
+
+
+	run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2"
+	rc=$?
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+		rc=$?
+	fi
+	log_test $rc 0 "Multipath route with mtu metric"
+
+	$IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300
+	run_cmd "ip netns exec $ns1 ping -w1 -c1 -s 1500 172.16.104.1"
+	log_test $? 0 "Using route with mtu metric"
+
+	run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo"
+	log_test $? 2 "Invalid metric (fails metric_convert)"
+
+	route_cleanup
+}
+
+ipv4_del_addr_test()
+{
+	echo
+	echo "IPv4 delete address route tests"
+
+	setup
+
+	set -e
+	$IP li add dummy1 type dummy
+	$IP li set dummy1 up
+	$IP li add dummy2 type dummy
+	$IP li set dummy2 up
+	$IP li add red type vrf table 1111
+	$IP li set red up
+	$IP ro add vrf red unreachable default
+	$IP li set dummy2 vrf red
+
+	$IP addr add dev dummy1 172.16.104.1/24
+	$IP addr add dev dummy1 172.16.104.11/24
+	$IP addr add dev dummy1 172.16.104.12/24
+	$IP addr add dev dummy1 172.16.104.13/24
+	$IP addr add dev dummy2 172.16.104.1/24
+	$IP addr add dev dummy2 172.16.104.11/24
+	$IP addr add dev dummy2 172.16.104.12/24
+	$IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+	$IP route add 172.16.106.0/24 dev lo src 172.16.104.12
+	$IP route add table 0 172.16.107.0/24 via 172.16.104.2 src 172.16.104.13
+	$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+	$IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
+	set +e
+
+	# removing address from device in vrf should only remove route from vrf table
+	echo "    Regular FIB info"
+
+	$IP addr del dev dummy2 172.16.104.11/24
+	$IP ro ls vrf red | grep -q 172.16.105.0/24
+	log_test $? 1 "Route removed from VRF when source address deleted"
+
+	$IP ro ls | grep -q 172.16.105.0/24
+	log_test $? 0 "Route in default VRF not removed"
+
+	$IP addr add dev dummy2 172.16.104.11/24
+	$IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11
+
+	$IP addr del dev dummy1 172.16.104.11/24
+	$IP ro ls | grep -q 172.16.105.0/24
+	log_test $? 1 "Route removed in default VRF when source address deleted"
+
+	$IP ro ls vrf red | grep -q 172.16.105.0/24
+	log_test $? 0 "Route in VRF is not removed by address delete"
+
+	# removing address from device in vrf should only remove route from vrf
+	# table even when the associated fib info only differs in table ID
+	echo "    Identical FIB info with different table ID"
+
+	$IP addr del dev dummy2 172.16.104.12/24
+	$IP ro ls vrf red | grep -q 172.16.106.0/24
+	log_test $? 1 "Route removed from VRF when source address deleted"
+
+	$IP ro ls | grep -q 172.16.106.0/24
+	log_test $? 0 "Route in default VRF not removed"
+
+	$IP addr add dev dummy2 172.16.104.12/24
+	$IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12
+
+	$IP addr del dev dummy1 172.16.104.12/24
+	$IP ro ls | grep -q 172.16.106.0/24
+	log_test $? 1 "Route removed in default VRF when source address deleted"
+
+	$IP ro ls vrf red | grep -q 172.16.106.0/24
+	log_test $? 0 "Route in VRF is not removed by address delete"
+
+	# removing address from device in default vrf should remove route from
+	# the default vrf even when route was inserted with a table ID of 0.
+	echo "    Table ID 0"
+
+	$IP addr del dev dummy1 172.16.104.13/24
+	$IP ro ls | grep -q 172.16.107.0/24
+	log_test $? 1 "Route removed in default VRF when source address deleted"
+
+	$IP li del dummy1
+	$IP li del dummy2
+	cleanup
+}
+
+ipv6_del_addr_test()
+{
+	echo
+	echo "IPv6 delete address route tests"
+
+	setup
+
+	set -e
+	for i in $(seq 6); do
+		$IP li add dummy${i} up type dummy
+	done
+
+	$IP li add red up type vrf table 1111
+	$IP ro add vrf red unreachable default
+	for i in $(seq 4 6); do
+		$IP li set dummy${i} vrf red
+	done
+
+	$IP addr add dev dummy1 fe80::1/128
+	$IP addr add dev dummy1 2001:db8:101::1/64
+	$IP addr add dev dummy1 2001:db8:101::10/64
+	$IP addr add dev dummy1 2001:db8:101::11/64
+	$IP addr add dev dummy1 2001:db8:101::12/64
+	$IP addr add dev dummy1 2001:db8:101::13/64
+	$IP addr add dev dummy1 2001:db8:101::14/64
+	$IP addr add dev dummy1 2001:db8:101::15/64
+	$IP addr add dev dummy2 fe80::1/128
+	$IP addr add dev dummy2 2001:db8:101::1/64
+	$IP addr add dev dummy2 2001:db8:101::11/64
+	$IP addr add dev dummy3 fe80::1/128
+
+	$IP addr add dev dummy4 2001:db8:101::1/64
+	$IP addr add dev dummy4 2001:db8:101::10/64
+	$IP addr add dev dummy4 2001:db8:101::11/64
+	$IP addr add dev dummy4 2001:db8:101::12/64
+	$IP addr add dev dummy4 2001:db8:101::13/64
+	$IP addr add dev dummy4 2001:db8:101::14/64
+	$IP addr add dev dummy5 2001:db8:101::1/64
+	$IP addr add dev dummy5 2001:db8:101::11/64
+
+	# Single device using src address
+	$IP route add 2001:db8:110::/64 dev dummy3 src 2001:db8:101::10
+	# Two devices with the same source address
+	$IP route add 2001:db8:111::/64 dev dummy3 src 2001:db8:101::11
+	# VRF with single device using src address
+	$IP route add vrf red 2001:db8:110::/64 dev dummy6 src 2001:db8:101::10
+	# VRF with two devices using src address
+	$IP route add vrf red 2001:db8:111::/64 dev dummy6 src 2001:db8:101::11
+	# src address and nexthop dev in same VRF
+	$IP route add 2001:db8:112::/64 dev dummy3 src 2001:db8:101::12
+	$IP route add vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12
+	# src address and nexthop device in different VRF
+	$IP route add 2001:db8:113::/64 dev lo src 2001:db8:101::13
+	$IP route add vrf red 2001:db8:113::/64 dev lo src 2001:db8:101::13
+	# table ID 0
+	$IP route add table 0 2001:db8:115::/64 via 2001:db8:101::2 src 2001:db8:101::15
+	# Link local source route
+	$IP route add 2001:db8:116::/64 dev dummy2 src fe80::1
+	$IP route add 2001:db8:117::/64 dev dummy3 src fe80::1
+	set +e
+
+	echo "    Single device using src address"
+
+	$IP addr del dev dummy1 2001:db8:101::10/64
+	$IP -6 route show | grep -q "src 2001:db8:101::10 "
+	log_test $? 1 "Prefsrc removed when src address removed on other device"
+
+	echo "    Two devices with the same source address"
+
+	$IP addr del dev dummy1 2001:db8:101::11/64
+	$IP -6 route show | grep -q "src 2001:db8:101::11 "
+	log_test $? 0 "Prefsrc not removed when src address exist on other device"
+
+	$IP addr del dev dummy2 2001:db8:101::11/64
+	$IP -6 route show | grep -q "src 2001:db8:101::11 "
+	log_test $? 1 "Prefsrc removed when src address removed on all devices"
+
+	echo "    VRF with single device using src address"
+
+	$IP addr del dev dummy4 2001:db8:101::10/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::10 "
+	log_test $? 1 "Prefsrc removed when src address removed on other device"
+
+	echo "    VRF with two devices using src address"
+
+	$IP addr del dev dummy4 2001:db8:101::11/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::11 "
+	log_test $? 0 "Prefsrc not removed when src address exist on other device"
+
+	$IP addr del dev dummy5 2001:db8:101::11/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::11 "
+	log_test $? 1 "Prefsrc removed when src address removed on all devices"
+
+	echo "    src address and nexthop dev in same VRF"
+
+	$IP addr del dev dummy4 2001:db8:101::12/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::12 "
+	log_test $? 1 "Prefsrc removed from VRF when source address deleted"
+	$IP -6 route show | grep -q " src 2001:db8:101::12 "
+	log_test $? 0 "Prefsrc in default VRF not removed"
+
+	$IP addr add dev dummy4 2001:db8:101::12/64
+	$IP route replace vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12
+	$IP addr del dev dummy1 2001:db8:101::12/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::12 "
+	log_test $? 0 "Prefsrc not removed from VRF when source address exist"
+	$IP -6 route show | grep -q " src 2001:db8:101::12 "
+	log_test $? 1 "Prefsrc in default VRF removed"
+
+	echo "    src address and nexthop device in different VRF"
+
+	$IP addr del dev dummy4 2001:db8:101::13/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::13 "
+	log_test $? 0 "Prefsrc not removed from VRF when nexthop dev in diff VRF"
+	$IP -6 route show | grep -q "src 2001:db8:101::13 "
+	log_test $? 0 "Prefsrc not removed in default VRF"
+
+	$IP addr add dev dummy4 2001:db8:101::13/64
+	$IP addr del dev dummy1 2001:db8:101::13/64
+	$IP -6 route show vrf red | grep -q "src 2001:db8:101::13 "
+	log_test $? 1 "Prefsrc removed from VRF when nexthop dev in diff VRF"
+	$IP -6 route show | grep -q "src 2001:db8:101::13 "
+	log_test $? 1 "Prefsrc removed in default VRF"
+
+	echo "    Table ID 0"
+
+	$IP addr del dev dummy1 2001:db8:101::15/64
+	$IP -6 route show | grep -q "src 2001:db8:101::15"
+	log_test $? 1 "Prefsrc removed from default VRF when source address deleted"
+
+	echo "    Link local source route"
+	$IP addr del dev dummy1 fe80::1/128
+	$IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1"
+	log_test $? 0 "Prefsrc not removed when delete ll addr from other dev"
+	$IP addr del dev dummy2 fe80::1/128
+	$IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1"
+	log_test $? 1 "Prefsrc removed when delete ll addr"
+	$IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1"
+	log_test $? 0 "Prefsrc not removed when delete ll addr from other dev"
+	$IP addr add dev dummy1 fe80::1/128
+	$IP addr del dev dummy3 fe80::1/128
+	$IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1"
+	log_test $? 1 "Prefsrc removed even ll addr still exist on other dev"
+
+	for i in $(seq 6); do
+		$IP li del dummy${i}
+	done
+	cleanup
+}
+
+ipv4_route_v6_gw_test()
+{
+	local rc
+
+	echo
+	echo "IPv4 route with IPv6 gateway tests"
+
+	route_setup
+	sleep 2
+
+	#
+	# single path route
+	#
+	run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2"
+	rc=$?
+	log_test $rc 0 "Single path route with IPv6 gateway"
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1"
+	fi
+
+	run_cmd "ip netns exec $ns1 ping -w1 -c1 172.16.104.1"
+	log_test $rc 0 "Single path route with IPv6 gateway - ping"
+
+	run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2"
+	rc=$?
+	log_test $rc 0 "Single path route delete"
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.112.0/24"
+	fi
+
+	#
+	# multipath - v6 then v4
+	#
+	run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+	rc=$?
+	log_test $rc 0 "Multipath route add - v6 nexthop then v4"
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1"
+	fi
+
+	run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+	log_test $? 2 "    Multipath route delete - nexthops in wrong order"
+
+	run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+	log_test $? 0 "    Multipath route delete exact match"
+
+	#
+	# multipath - v4 then v6
+	#
+	run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+	rc=$?
+	log_test $rc 0 "Multipath route add - v4 nexthop then v6"
+	if [ $rc -eq 0 ]; then
+		check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1"
+	fi
+
+	run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3"
+	log_test $? 2 "    Multipath route delete - nexthops in wrong order"
+
+	run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1"
+	log_test $? 0 "    Multipath route delete exact match"
+
+	route_cleanup
+}
+
+socat_check()
+{
+	if [ ! -x "$(command -v socat)" ]; then
+		echo "socat command not found. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+iptables_check()
+{
+	iptables -t mangle -L OUTPUT &> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "iptables configuration not supported. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+ip6tables_check()
+{
+	ip6tables -t mangle -L OUTPUT &> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "ip6tables configuration not supported. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+ipv4_mangle_test()
+{
+	local rc
+
+	echo
+	echo "IPv4 mangling tests"
+
+	socat_check || return 1
+	iptables_check || return 1
+
+	route_setup
+	sleep 2
+
+	local tmp_file=$(mktemp)
+	ip netns exec $ns2 socat UDP4-LISTEN:54321,fork $tmp_file &
+
+	# Add a FIB rule and a route that will direct our connection to the
+	# listening server.
+	$IP rule add pref 100 ipproto udp sport 12345 dport 54321 table 123
+	$IP route add table 123 172.16.101.0/24 dev veth1
+
+	# Add an unreachable route to the main table that will block our
+	# connection in case the FIB rule is not hit.
+	$IP route add unreachable 172.16.101.2/32
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters"
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=11111"
+	log_test $? 1 "    Connection with incorrect parameters"
+
+	# Add a mangling rule and make sure connection is still successful.
+	$NS_EXEC iptables -t mangle -A OUTPUT -j MARK --set-mark 1
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters - mangling"
+
+	# Delete the mangling rule and make sure connection is still
+	# successful.
+	$NS_EXEC iptables -t mangle -D OUTPUT -j MARK --set-mark 1
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters - no mangling"
+
+	# Verify connections were indeed successful on server side.
+	[[ $(cat $tmp_file | wc -l) -eq 3 ]]
+	log_test $? 0 "    Connection check - server side"
+
+	$IP route del unreachable 172.16.101.2/32
+	$IP route del table 123 172.16.101.0/24 dev veth1
+	$IP rule del pref 100
+
+	kill_process %%
+	rm $tmp_file
+
+	route_cleanup
+}
+
+ipv6_mangle_test()
+{
+	local rc
+
+	echo
+	echo "IPv6 mangling tests"
+
+	socat_check || return 1
+	ip6tables_check || return 1
+
+	route_setup
+	sleep 2
+
+	local tmp_file=$(mktemp)
+	ip netns exec $ns2 socat UDP6-LISTEN:54321,fork $tmp_file &
+
+	# Add a FIB rule and a route that will direct our connection to the
+	# listening server.
+	$IP -6 rule add pref 100 ipproto udp sport 12345 dport 54321 table 123
+	$IP -6 route add table 123 2001:db8:101::/64 dev veth1
+
+	# Add an unreachable route to the main table that will block our
+	# connection in case the FIB rule is not hit.
+	$IP -6 route add unreachable 2001:db8:101::2/128
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters"
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=11111"
+	log_test $? 1 "    Connection with incorrect parameters"
+
+	# Add a mangling rule and make sure connection is still successful.
+	$NS_EXEC ip6tables -t mangle -A OUTPUT -j MARK --set-mark 1
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters - mangling"
+
+	# Delete the mangling rule and make sure connection is still
+	# successful.
+	$NS_EXEC ip6tables -t mangle -D OUTPUT -j MARK --set-mark 1
+
+	run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345"
+	log_test $? 0 "    Connection with correct parameters - no mangling"
+
+	# Verify connections were indeed successful on server side.
+	[[ $(cat $tmp_file | wc -l) -eq 3 ]]
+	log_test $? 0 "    Connection check - server side"
+
+	$IP -6 route del unreachable 2001:db8:101::2/128
+	$IP -6 route del table 123 2001:db8:101::/64 dev veth1
+	$IP -6 rule del pref 100
+
+	kill_process %%
+	rm $tmp_file
+
+	route_cleanup
+}
+
+ip_neigh_get_check()
+{
+	ip neigh help 2>&1 | grep -q 'ip neigh get'
+	if [ $? -ne 0 ]; then
+		echo "iproute2 command does not support neigh get. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+ipv4_bcast_neigh_test()
+{
+	local rc
+
+	echo
+	echo "IPv4 broadcast neighbour tests"
+
+	ip_neigh_get_check || return 1
+
+	setup
+
+	set -e
+	run_cmd "$IP neigh add 192.0.2.111 lladdr 00:11:22:33:44:55 nud perm dev dummy0"
+	run_cmd "$IP neigh add 192.0.2.255 lladdr 00:11:22:33:44:55 nud perm dev dummy0"
+
+	run_cmd "$IP neigh get 192.0.2.111 dev dummy0"
+	run_cmd "$IP neigh get 192.0.2.255 dev dummy0"
+
+	run_cmd "$IP address add 192.0.2.1/24 broadcast 192.0.2.111 dev dummy0"
+
+	run_cmd "$IP neigh add 203.0.113.111 nud failed dev dummy0"
+	run_cmd "$IP neigh add 203.0.113.255 nud failed dev dummy0"
+
+	run_cmd "$IP neigh get 203.0.113.111 dev dummy0"
+	run_cmd "$IP neigh get 203.0.113.255 dev dummy0"
+
+	run_cmd "$IP address add 203.0.113.1/24 broadcast 203.0.113.111 dev dummy0"
+	set +e
+
+	run_cmd "$IP neigh get 192.0.2.111 dev dummy0"
+	log_test $? 0 "Resolved neighbour for broadcast address"
+
+	run_cmd "$IP neigh get 192.0.2.255 dev dummy0"
+	log_test $? 0 "Resolved neighbour for network broadcast address"
+
+	run_cmd "$IP neigh get 203.0.113.111 dev dummy0"
+	log_test $? 2 "Unresolved neighbour for broadcast address"
+
+	run_cmd "$IP neigh get 203.0.113.255 dev dummy0"
+	log_test $? 2 "Unresolved neighbour for network broadcast address"
+
+	cleanup
+}
+
+mpath_dep_check()
+{
+	if [ ! -x "$(command -v mausezahn)" ]; then
+		echo "mausezahn command not found. Skipping test"
+		return 1
+	fi
+
+	if [ ! -x "$(command -v jq)" ]; then
+		echo "jq command not found. Skipping test"
+		return 1
+	fi
+
+	if [ ! -x "$(command -v bc)" ]; then
+		echo "bc command not found. Skipping test"
+		return 1
+	fi
+
+	if [ ! -x "$(command -v perf)" ]; then
+		echo "perf command not found. Skipping test"
+		return 1
+	fi
+
+	perf list fib:* | grep -q fib_table_lookup
+	if [ $? -ne 0 ]; then
+		echo "IPv4 FIB tracepoint not found. Skipping test"
+		return 1
+	fi
+
+	perf list fib6:* | grep -q fib6_table_lookup
+	if [ $? -ne 0 ]; then
+		echo "IPv6 FIB tracepoint not found. Skipping test"
+		return 1
+	fi
+
+	return 0
+}
+
+link_stats_get()
+{
+	local ns=$1; shift
+	local dev=$1; shift
+	local dir=$1; shift
+	local stat=$1; shift
+
+	ip -n $ns -j -s link show dev $dev \
+		| jq '.[]["stats64"]["'$dir'"]["'$stat'"]'
+}
+
+list_rcv_eval()
+{
+	local file=$1; shift
+	local expected=$1; shift
+
+	local count=$(tail -n 1 $file | jq '.["counter-value"] | tonumber | floor')
+	local ratio=$(echo "scale=2; $count / $expected" | bc -l)
+	local res=$(echo "$ratio >= 0.95" | bc)
+	[[ $res -eq 1 ]]
+	log_test $? 0 "Multipath route hit ratio ($ratio)"
+}
+
+ipv4_mpath_list_test()
+{
+	echo
+	echo "IPv4 multipath list receive tests"
+
+	mpath_dep_check || return 1
+
+	route_setup
+
+	set -e
+	run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off"
+
+	run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\""
+	run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\""
+	run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on"
+	run_cmd "ip -n $ns2 link add name nh1 up type dummy"
+	run_cmd "ip -n $ns2 link add name nh2 up type dummy"
+	run_cmd "ip -n $ns2 address add 172.16.201.1/24 dev nh1"
+	run_cmd "ip -n $ns2 address add 172.16.202.1/24 dev nh2"
+	run_cmd "ip -n $ns2 neigh add 172.16.201.2 lladdr 00:11:22:33:44:55 nud perm dev nh1"
+	run_cmd "ip -n $ns2 neigh add 172.16.202.2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2"
+	run_cmd "ip -n $ns2 route add 203.0.113.0/24
+		nexthop via 172.16.201.2 nexthop via 172.16.202.2"
+	run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.fib_multipath_hash_policy=1"
+	set +e
+
+	local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]')
+	local tmp_file=$(mktemp)
+	local cmd="ip netns exec $ns1 mausezahn veth1 -a own -b $dmac
+		-A 172.16.101.1 -B 203.0.113.1 -t udp 'sp=12345,dp=0-65535' -q"
+
+	# Packets forwarded in a list using a multipath route must not reuse a
+	# cached result so that a flow always hits the same nexthop. In other
+	# words, the FIB lookup tracepoint needs to be triggered for every
+	# packet.
+	local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
+	run_cmd "perf stat -a -e fib:fib_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd"
+	local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
+	local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l)
+	list_rcv_eval $tmp_file $diff
+
+	rm $tmp_file
+	route_cleanup
+}
+
+ipv6_mpath_list_test()
+{
+	echo
+	echo "IPv6 multipath list receive tests"
+
+	mpath_dep_check || return 1
+
+	route_setup
+
+	set -e
+	run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off"
+
+	run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\""
+	run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\""
+	run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on"
+	run_cmd "ip -n $ns2 link add name nh1 up type dummy"
+	run_cmd "ip -n $ns2 link add name nh2 up type dummy"
+	run_cmd "ip -n $ns2 -6 address add 2001:db8:201::1/64 dev nh1"
+	run_cmd "ip -n $ns2 -6 address add 2001:db8:202::1/64 dev nh2"
+	run_cmd "ip -n $ns2 -6 neigh add 2001:db8:201::2 lladdr 00:11:22:33:44:55 nud perm dev nh1"
+	run_cmd "ip -n $ns2 -6 neigh add 2001:db8:202::2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2"
+	run_cmd "ip -n $ns2 -6 route add 2001:db8:301::/64
+		nexthop via 2001:db8:201::2 nexthop via 2001:db8:202::2"
+	run_cmd "ip netns exec $ns2 sysctl -qw net.ipv6.fib_multipath_hash_policy=1"
+	set +e
+
+	local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]')
+	local tmp_file=$(mktemp)
+	local cmd="ip netns exec $ns1 mausezahn -6 veth1 -a own -b $dmac
+		-A 2001:db8:101::1 -B 2001:db8:301::1 -t udp 'sp=12345,dp=0-65535' -q"
+
+	# Packets forwarded in a list using a multipath route must not reuse a
+	# cached result so that a flow always hits the same nexthop. In other
+	# words, the FIB lookup tracepoint needs to be triggered for every
+	# packet.
+	local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
+	run_cmd "perf stat -a -e fib6:fib6_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd"
+	local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets)
+	local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l)
+	list_rcv_eval $tmp_file $diff
+
+	rm $tmp_file
+	route_cleanup
+}
+
+tc_set_flower_counter__saddr_syn() {
+	tc_set_flower_counter $1 $2 $3 "src_ip $4 ip_proto tcp tcp_flags 0x2"
+}
+
+ip_mpath_balance_dep_check()
+{
+	if [ ! -x "$(command -v socat)" ]; then
+		echo "socat command not found. Skipping test"
+		return 1
+	fi
+
+	if [ ! -x "$(command -v jq)" ]; then
+		echo "jq command not found. Skipping test"
+		return 1
+	fi
+}
+
+ip_mpath_balance() {
+	local -r ipver=$1
+	local -r daddr=$2
+	local -r num_conn=20
+
+	for i in $(seq 1 $num_conn); do
+		ip netns exec $ns3 socat $ipver TCP-LISTEN:8000 STDIO >/dev/null &
+		sleep 0.02
+		echo -n a | ip netns exec $ns1 socat $ipver STDIO TCP:$daddr:8000
+	done
+
+	local -r syn0="$(tc_get_flower_counter $ns1 veth1)"
+	local -r syn1="$(tc_get_flower_counter $ns1 veth3)"
+	local -r syns=$((syn0+syn1))
+
+	[ "$VERBOSE" = "1" ] && echo "multipath: syns seen: ($syn0,$syn1)"
+
+	[[ $syns -ge $num_conn ]] && [[ $syn0 -gt 0 ]] && [[ $syn1 -gt 0 ]]
+}
+
+ipv4_mpath_balance_test()
+{
+	echo
+	echo "IPv4 multipath load balance test"
+
+	ip_mpath_balance_dep_check || return 1
+	forwarding_setup
+
+	$IP route add 172.16.105.1 \
+		nexthop via 172.16.101.2 \
+		nexthop via 172.16.103.2
+
+	ip netns exec $ns1 \
+		sysctl -q -w net.ipv4.fib_multipath_hash_policy=1
+
+	tc_set_flower_counter__saddr_syn $ns1 4 veth1 172.16.101.1
+	tc_set_flower_counter__saddr_syn $ns1 4 veth3 172.16.103.1
+
+	ip_mpath_balance -4 172.16.105.1
+
+	log_test $? 0 "IPv4 multipath loadbalance"
+
+	forwarding_cleanup
+}
+
+ipv6_mpath_balance_test()
+{
+	echo
+	echo "IPv6 multipath load balance test"
+
+	ip_mpath_balance_dep_check || return 1
+	forwarding_setup
+
+	$IP route add 2001:db8:105::1\
+		nexthop via 2001:db8:101::2 \
+		nexthop via 2001:db8:103::2
+
+	ip netns exec $ns1 \
+		sysctl -q -w net.ipv6.fib_multipath_hash_policy=1
+
+	tc_set_flower_counter__saddr_syn $ns1 6 veth1 2001:db8:101::1
+	tc_set_flower_counter__saddr_syn $ns1 6 veth3 2001:db8:103::1
+
+	ip_mpath_balance -6 "[2001:db8:105::1]"
+
+	log_test $? 0 "IPv6 multipath loadbalance"
+
+	forwarding_cleanup
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+trap cleanup EXIT
+
+while getopts :t:pPhv o
+do
+	case $o in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+PEER_CMD="ip netns exec ${PEER_NS}"
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip route help 2>&1 | grep -q fibmatch
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing fibmatch"
+	exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+for t in $TESTS
+do
+	case $t in
+	fib_unreg_test|unregister)	fib_unreg_test;;
+	fib_down_test|down)		fib_down_test;;
+	fib_carrier_test|carrier)	fib_carrier_test;;
+	fib_rp_filter_test|rp_filter)	fib_rp_filter_test;;
+	fib_nexthop_test|nexthop)	fib_nexthop_test;;
+	fib_notify_test|ipv4_notify)	fib_notify_test;;
+	fib6_notify_test|ipv6_notify)	fib6_notify_test;;
+	fib_suppress_test|suppress)	fib_suppress_test;;
+	ipv6_route_test|ipv6_rt)	ipv6_route_test;;
+	ipv4_route_test|ipv4_rt)	ipv4_route_test;;
+	ipv6_addr_metric)		ipv6_addr_metric_test;;
+	ipv4_addr_metric)		ipv4_addr_metric_test;;
+	ipv4_del_addr)			ipv4_del_addr_test;;
+	ipv6_del_addr)			ipv6_del_addr_test;;
+	ipv6_route_metrics)		ipv6_route_metrics_test;;
+	ipv4_route_metrics)		ipv4_route_metrics_test;;
+	ipv4_route_v6_gw)		ipv4_route_v6_gw_test;;
+	ipv4_mangle)			ipv4_mangle_test;;
+	ipv6_mangle)			ipv6_mangle_test;;
+	ipv4_bcast_neigh)		ipv4_bcast_neigh_test;;
+	fib6_gc_test|ipv6_gc)		fib6_gc_test;;
+	ipv4_mpath_list)		ipv4_mpath_list_test;;
+	ipv6_mpath_list)		ipv6_mpath_list_test;;
+	ipv4_mpath_balance)		ipv4_mpath_balance_test;;
+	ipv6_mpath_balance)		ipv6_mpath_balance_test;;
+	fib6_ra_to_static)		fib6_ra_to_static;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+	esac
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/fin_ack_lat.c b/tools/testing/selftests/net/fin_ack_lat.c
new file mode 100644
index 000000000000..70187494b57a
--- /dev/null
+++ b/tools/testing/selftests/net/fin_ack_lat.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+static int child_pid;
+
+static unsigned long timediff(struct timeval s, struct timeval e)
+{
+	unsigned long s_us, e_us;
+
+	s_us = s.tv_sec * 1000000 + s.tv_usec;
+	e_us = e.tv_sec * 1000000 + e.tv_usec;
+	if (s_us > e_us)
+		return 0;
+	return e_us - s_us;
+}
+
+static void client(int port)
+{
+	int sock = 0;
+	struct sockaddr_in addr, laddr;
+	socklen_t len = sizeof(laddr);
+	struct linger sl;
+	int flag = 1;
+	int buffer;
+	struct timeval start, end;
+	unsigned long lat, sum_lat = 0, nr_lat = 0;
+
+	while (1) {
+		gettimeofday(&start, NULL);
+
+		sock = socket(AF_INET, SOCK_STREAM, 0);
+		if (sock < 0)
+			error(-1, errno, "socket creation");
+
+		sl.l_onoff = 1;
+		sl.l_linger = 0;
+		if (setsockopt(sock, SOL_SOCKET, SO_LINGER, &sl, sizeof(sl)))
+			error(-1, errno, "setsockopt(linger)");
+
+		if (setsockopt(sock, IPPROTO_TCP, TCP_NODELAY,
+					&flag, sizeof(flag)))
+			error(-1, errno, "setsockopt(nodelay)");
+
+		addr.sin_family = AF_INET;
+		addr.sin_port = htons(port);
+
+		if (inet_pton(AF_INET, "127.0.0.1", &addr.sin_addr) <= 0)
+			error(-1, errno, "inet_pton");
+
+		if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0)
+			error(-1, errno, "connect");
+
+		send(sock, &buffer, sizeof(buffer), 0);
+		if (read(sock, &buffer, sizeof(buffer)) == -1)
+			error(-1, errno, "waiting read");
+
+		gettimeofday(&end, NULL);
+		lat = timediff(start, end);
+		sum_lat += lat;
+		nr_lat++;
+		if (lat < 100000)
+			goto close;
+
+		if (getsockname(sock, (struct sockaddr *)&laddr, &len) == -1)
+			error(-1, errno, "getsockname");
+		printf("port: %d, lat: %lu, avg: %lu, nr: %lu\n",
+				ntohs(laddr.sin_port), lat,
+				sum_lat / nr_lat, nr_lat);
+close:
+		fflush(stdout);
+		close(sock);
+	}
+}
+
+static void server(int sock, struct sockaddr_in address)
+{
+	int accepted;
+	int addrlen = sizeof(address);
+	int buffer;
+
+	while (1) {
+		accepted = accept(sock, (struct sockaddr *)&address,
+				(socklen_t *)&addrlen);
+		if (accepted < 0)
+			error(-1, errno, "accept");
+
+		if (read(accepted, &buffer, sizeof(buffer)) == -1)
+			error(-1, errno, "read");
+		close(accepted);
+	}
+}
+
+static void sig_handler(int signum)
+{
+	kill(SIGTERM, child_pid);
+	exit(0);
+}
+
+int main(int argc, char const *argv[])
+{
+	int sock;
+	int opt = 1;
+	struct sockaddr_in address;
+	struct sockaddr_in laddr;
+	socklen_t len = sizeof(laddr);
+
+	if (signal(SIGTERM, sig_handler) == SIG_ERR)
+		error(-1, errno, "signal");
+
+	sock = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock < 0)
+		error(-1, errno, "socket");
+
+	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT,
+				&opt, sizeof(opt)) == -1)
+		error(-1, errno, "setsockopt");
+
+	address.sin_family = AF_INET;
+	address.sin_addr.s_addr = INADDR_ANY;
+	/* dynamically allocate unused port */
+	address.sin_port = 0;
+
+	if (bind(sock, (struct sockaddr *)&address, sizeof(address)) < 0)
+		error(-1, errno, "bind");
+
+	if (listen(sock, 3) < 0)
+		error(-1, errno, "listen");
+
+	if (getsockname(sock, (struct sockaddr *)&laddr, &len) == -1)
+		error(-1, errno, "getsockname");
+
+	fprintf(stderr, "server port: %d\n", ntohs(laddr.sin_port));
+	child_pid = fork();
+	if (!child_pid)
+		client(ntohs(laddr.sin_port));
+	else
+		server(sock, laddr);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/fin_ack_lat.sh b/tools/testing/selftests/net/fin_ack_lat.sh
new file mode 100755
index 000000000000..a3ff6e0b2c7a
--- /dev/null
+++ b/tools/testing/selftests/net/fin_ack_lat.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test latency spikes caused by FIN/ACK handling race.
+
+set +x
+set -e
+
+tmpfile=$(mktemp /tmp/fin_ack_latency.XXXX.log)
+
+cleanup() {
+	kill $(pidof fin_ack_lat)
+	rm -f $tmpfile
+}
+
+trap cleanup EXIT
+
+do_test() {
+	RUNTIME=$1
+
+	./fin_ack_lat | tee $tmpfile &
+	PID=$!
+
+	sleep $RUNTIME
+	NR_SPIKES=$(wc -l $tmpfile | awk '{print $1}')
+	if [ $NR_SPIKES -gt 0 ]
+	then
+		echo "FAIL: $NR_SPIKES spikes detected"
+		return 1
+	fi
+	return 0
+}
+
+do_test "30"
+echo "test done"
diff --git a/tools/testing/selftests/net/forwarding/.gitignore b/tools/testing/selftests/net/forwarding/.gitignore
new file mode 100644
index 000000000000..2dea317f12e7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+forwarding.config
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
new file mode 100644
index 000000000000..ff4a00d91a26
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -0,0 +1,141 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS := \
+	bridge_activity_notify.sh \
+	bridge_fdb_learning_limit.sh \
+	bridge_fdb_local_vlan_0.sh \
+	bridge_igmp.sh \
+	bridge_locked_port.sh \
+	bridge_mdb.sh \
+	bridge_mdb_host.sh \
+	bridge_mdb_max.sh \
+	bridge_mdb_port_down.sh \
+	bridge_mld.sh \
+	bridge_port_isolation.sh \
+	bridge_sticky_fdb.sh \
+	bridge_vlan_aware.sh \
+	bridge_vlan_mcast.sh \
+	bridge_vlan_unaware.sh \
+	custom_multipath_hash.sh \
+	dual_vxlan_bridge.sh \
+	gre_custom_multipath_hash.sh \
+	gre_inner_v4_multipath.sh \
+	gre_inner_v6_multipath.sh \
+	gre_multipath.sh \
+	gre_multipath_nh.sh \
+	gre_multipath_nh_res.sh \
+	ip6_forward_instats_vrf.sh \
+	ip6gre_custom_multipath_hash.sh \
+	ip6gre_flat.sh \
+	ip6gre_flat_key.sh \
+	ip6gre_flat_keys.sh \
+	ip6gre_hier.sh \
+	ip6gre_hier_key.sh \
+	ip6gre_hier_keys.sh \
+	ip6gre_inner_v4_multipath.sh \
+	ip6gre_inner_v6_multipath.sh \
+	ipip_flat_gre.sh \
+	ipip_flat_gre_key.sh \
+	ipip_flat_gre_keys.sh \
+	ipip_hier_gre.sh \
+	ipip_hier_gre_key.sh \
+	ipip_hier_gre_keys.sh \
+	lib_sh_test.sh \
+	local_termination.sh \
+	min_max_mtu.sh \
+	mirror_gre.sh \
+	mirror_gre_bound.sh \
+	mirror_gre_bridge_1d.sh \
+	mirror_gre_bridge_1d_vlan.sh \
+	mirror_gre_bridge_1q.sh \
+	mirror_gre_bridge_1q_lag.sh \
+	mirror_gre_changes.sh \
+	mirror_gre_flower.sh \
+	mirror_gre_lag_lacp.sh \
+	mirror_gre_neigh.sh \
+	mirror_gre_nh.sh \
+	mirror_gre_vlan.sh \
+	mirror_gre_vlan_bridge_1q.sh \
+	mirror_vlan.sh \
+	no_forwarding.sh \
+	pedit_dsfield.sh \
+	pedit_ip.sh \
+	pedit_l4port.sh \
+	q_in_vni.sh \
+	q_in_vni_ipv6.sh \
+	router.sh \
+	router_bridge.sh \
+	router_bridge_1d.sh \
+	router_bridge_1d_lag.sh \
+	router_bridge_lag.sh \
+	router_bridge_pvid_vlan_upper.sh \
+	router_bridge_vlan.sh \
+	router_bridge_vlan_upper.sh \
+	router_bridge_vlan_upper_pvid.sh \
+	router_broadcast.sh \
+	router_mpath_nh.sh \
+	router_mpath_nh_res.sh \
+	router_mpath_seed.sh \
+	router_multicast.sh \
+	router_multipath.sh \
+	router_nh.sh \
+	router_vid_1.sh \
+	sch_ets.sh \
+	sch_red.sh \
+	sch_tbf_ets.sh \
+	sch_tbf_prio.sh \
+	sch_tbf_root.sh \
+	skbedit_priority.sh \
+	tc_actions.sh \
+	tc_chains.sh \
+	tc_flower.sh \
+	tc_flower_cfm.sh \
+	tc_flower_l2_miss.sh \
+	tc_flower_port_range.sh \
+	tc_flower_router.sh \
+	tc_mpls_l2vpn.sh \
+	tc_police.sh \
+	tc_shblocks.sh \
+	tc_tunnel_key.sh \
+	tc_vlan_modify.sh \
+	vxlan_asymmetric.sh \
+	vxlan_asymmetric_ipv6.sh \
+	vxlan_bridge_1d.sh \
+	vxlan_bridge_1d_ipv6.sh \
+	vxlan_bridge_1d_port_8472.sh \
+	vxlan_bridge_1d_port_8472_ipv6.sh \
+	vxlan_bridge_1q.sh \
+	vxlan_bridge_1q_ipv6.sh \
+	vxlan_bridge_1q_mc_ul.sh \
+	vxlan_bridge_1q_port_8472.sh \
+	vxlan_bridge_1q_port_8472_ipv6.sh \
+	vxlan_reserved.sh \
+	vxlan_symmetric.sh \
+	vxlan_symmetric_ipv6.sh \
+# end of TEST_PROGS
+
+TEST_FILES := \
+	devlink_lib.sh \
+	fib_offload_lib.sh \
+	forwarding.config.sample \
+	ip6gre_lib.sh \
+	ipip_lib.sh \
+	lib.sh \
+	mirror_gre_lib.sh \
+	mirror_gre_topo_lib.sh \
+	mirror_lib.sh \
+	mirror_topo_lib.sh \
+	router_mpath_nh_lib.sh \
+	sch_ets_core.sh \
+	sch_ets_tests.sh \
+	sch_tbf_core.sh \
+	sch_tbf_etsprio.sh \
+	tc_common.sh \
+# end of TEST_FILES
+
+TEST_INCLUDES := \
+	$(wildcard ../lib/sh/*.sh) \
+	../lib.sh \
+# end of TEST_INCLUDES
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/forwarding/README b/tools/testing/selftests/net/forwarding/README
new file mode 100644
index 000000000000..392a5a91ed37
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/README
@@ -0,0 +1,106 @@
+Motivation
+==========
+
+One of the nice things about network namespaces is that they allow one
+to easily create and test complex environments.
+
+Unfortunately, these namespaces can not be used with actual switching
+ASICs, as their ports can not be migrated to other network namespaces
+(dev->netns_immutable) and most of them probably do not support the
+L1-separation provided by namespaces.
+
+However, a similar kind of flexibility can be achieved by using VRFs and
+by looping the switch ports together. For example:
+
+                             br0
+                              +
+               vrf-h1         |           vrf-h2
+                 +        +---+----+        +
+                 |        |        |        |
+    192.0.2.1/24 +        +        +        + 192.0.2.2/24
+               swp1     swp2     swp3     swp4
+                 +        +        +        +
+                 |        |        |        |
+                 +--------+        +--------+
+
+The VRFs act as lightweight namespaces representing hosts connected to
+the switch.
+
+This approach for testing switch ASICs has several advantages over the
+traditional method that requires multiple physical machines, to name a
+few:
+
+1. Only the device under test (DUT) is being tested without noise from
+other system.
+
+2. Ability to easily provision complex topologies. Testing bridging
+between 4-ports LAGs or 8-way ECMP requires many physical links that are
+not always available. With the VRF-based approach one merely needs to
+loopback more ports.
+
+These tests are written with switch ASICs in mind, but they can be run
+on any Linux box using veth pairs to emulate physical loopbacks.
+
+Guidelines for Writing Tests
+============================
+
+o Where possible, reuse an existing topology for different tests instead
+  of recreating the same topology.
+o Tests that use anything but the most trivial topologies should include
+  an ASCII art showing the topology.
+o Where possible, IPv6 and IPv4 addresses shall conform to RFC 3849 and
+  RFC 5737, respectively.
+o Where possible, tests shall be written so that they can be reused by
+  multiple topologies and added to lib.sh.
+o Checks shall be added to lib.sh for any external dependencies.
+o Code shall be checked using ShellCheck [1] prior to submission.
+
+1. https://www.shellcheck.net/
+
+Cleanups
+--------
+
+o lib.sh brings in defer.sh (by way of ../lib.sh) by default. Consider
+  making use of the defer primitive to schedule automatic cleanups. This
+  makes it harder to forget to remove a temporary netdevice, kill a running
+  process or perform other cleanup when the test script is interrupted.
+
+o When adding a helper that dirties the environment, but schedules all
+  necessary cleanups through defer, consider prefixing it adf_ for
+  consistency with lib.sh and ../lib.sh helpers. This serves as an
+  immediately visible bit of documentation about the helper API.
+
+o Definitely do the above for any new code in lib.sh, if practical.
+
+Customization
+=============
+
+The forwarding selftests framework uses a number of variables that
+influence its behavior and tools it invokes, and how it invokes them, in
+various ways. A number of these variables can be overridden. The way these
+overridable variables are specified is typically one of the following two
+syntaxes:
+
+	: "${VARIABLE:=default_value}"
+	VARIABLE=${VARIABLE:=default_value}
+
+Any of these variables can be overridden. Notably net/forwarding/lib.sh and
+net/lib.sh contain a number of overridable variables.
+
+One way of overriding these variables is through the environment:
+
+	PAUSE_ON_FAIL=yes ./some_test.sh
+
+The variable NETIFS is special. Since it is an array variable, there is no
+way to pass it through the environment. Its value can instead be given as
+consecutive arguments to the selftest:
+
+	./some_test.sh swp{1..8}
+
+A way to customize variables in a persistent fashion is to create a file
+named forwarding.config in this directory. lib.sh sources the file if
+present, so it can contain any shell code. Typically it will contain
+assignments of variables whose value should be overridden.
+
+forwarding.config.sample is available in the directory as an example of
+how forwarding.config might look.
diff --git a/tools/testing/selftests/net/forwarding/bridge_activity_notify.sh b/tools/testing/selftests/net/forwarding/bridge_activity_notify.sh
new file mode 100755
index 000000000000..522a5b1b046c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_activity_notify.sh
@@ -0,0 +1,170 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# | 192.0.2.1/28          |                          | 192.0.2.2/28           |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1d)             + $swp2           | |
+# | |                                                                       | |
+# | +-----------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	new_inactive_test
+	existing_active_test
+	norefresh_test
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	adf_simple_if_init "$h1" 192.0.2.1/28
+}
+
+h2_create()
+{
+	adf_simple_if_init "$h2" 192.0.2.2/28
+}
+
+switch_create()
+{
+	adf_ip_link_add br1 type bridge vlan_filtering 0 mcast_snooping 0 \
+		ageing_time "$LOW_AGEING_TIME"
+	adf_ip_link_set_up br1
+
+	adf_ip_link_set_master "$swp1" br1
+	adf_ip_link_set_up "$swp1"
+
+	adf_ip_link_set_master "$swp2" br1
+	adf_ip_link_set_up "$swp2"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+fdb_active_wait()
+{
+	local mac=$1; shift
+
+	bridge -d fdb get "$mac" br br1 | grep -q -v "inactive"
+}
+
+fdb_inactive_wait()
+{
+	local mac=$1; shift
+
+	bridge -d fdb get "$mac" br br1 | grep -q "inactive"
+}
+
+new_inactive_test()
+{
+	local mac="00:11:22:33:44:55"
+
+	# Add a new FDB entry as static and inactive and check that it
+	# becomes active upon traffic.
+	RET=0
+
+	bridge fdb add "$mac" dev "$swp1" master static activity_notify inactive
+	bridge -d fdb get "$mac" br br1 | grep -q "inactive"
+	check_err $? "FDB entry not present as \"inactive\" when should"
+
+	$MZ "$h1" -c 1 -p 64 -a "$mac" -b bcast -t ip -q
+
+	busywait "$BUSYWAIT_TIMEOUT" fdb_active_wait "$mac"
+	check_err $? "FDB entry present as \"inactive\" when should not"
+
+	log_test "Transition from inactive to active"
+
+	bridge fdb del "$mac" dev "$swp1" master
+}
+
+existing_active_test()
+{
+	local mac="00:11:22:33:44:55"
+	local ageing_time
+
+	# Enable activity notifications on an existing dynamic FDB entry and
+	# check that it becomes inactive after the ageing time passed.
+	RET=0
+
+	bridge fdb add "$mac" dev "$swp1" master dynamic
+	bridge fdb replace "$mac" dev "$swp1" master static activity_notify norefresh
+
+	bridge -d fdb get "$mac" br br1 | grep -q "activity_notify"
+	check_err $? "FDB entry not present as \"activity_notify\" when should"
+
+	bridge -d fdb get "$mac" br br1 | grep -q "inactive"
+	check_fail $? "FDB entry present as \"inactive\" when should not"
+
+	ageing_time=$(bridge_ageing_time_get br1)
+	slowwait $((ageing_time * 2)) fdb_inactive_wait "$mac"
+	check_err $? "FDB entry not present as \"inactive\" when should"
+
+	log_test "Transition from active to inactive"
+
+	bridge fdb del "$mac" dev "$swp1" master
+}
+
+norefresh_test()
+{
+	local mac="00:11:22:33:44:55"
+	local updated_time
+
+	# Check that the "updated" time is reset when replacing an FDB entry
+	# without the "norefresh" keyword and that it is not reset when
+	# replacing with the "norefresh" keyword.
+	RET=0
+
+	bridge fdb add "$mac" dev "$swp1" master static
+	sleep 1
+
+	bridge fdb replace "$mac" dev "$swp1" master static activity_notify
+	updated_time=$(bridge -d -s -j fdb get "$mac" br br1 | jq '.[]["updated"]')
+	if [[ $updated_time -ne 0 ]]; then
+		check_err 1 "\"updated\" time was not reset when should"
+	fi
+
+	sleep 1
+	bridge fdb replace "$mac" dev "$swp1" master static norefresh
+	updated_time=$(bridge -d -s -j fdb get "$mac" br br1 | jq '.[]["updated"]')
+	if [[ $updated_time -eq 0 ]]; then
+		check_err 1 "\"updated\" time was reset when should not"
+	fi
+
+	log_test "Resetting of \"updated\" time"
+
+	bridge fdb del "$mac" dev "$swp1" master
+}
+
+if ! bridge fdb help 2>&1 | grep -q "activity_notify"; then
+	echo "SKIP: iproute2 too old, missing bridge FDB activity notification control"
+	exit "$ksft_skip"
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/net/forwarding/bridge_fdb_learning_limit.sh b/tools/testing/selftests/net/forwarding/bridge_fdb_learning_limit.sh
new file mode 100755
index 000000000000..a21b7085da2e
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_fdb_learning_limit.sh
@@ -0,0 +1,301 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# ShellCheck incorrectly believes that most of the code here is unreachable
+# because it's invoked by variable name following ALL_TESTS.
+#
+# shellcheck disable=SC2317
+
+ALL_TESTS="check_accounting check_limit"
+NUM_NETIFS=6
+source lib.sh
+
+TEST_MAC_BASE=de:ad:be:ef:42:
+
+NUM_PKTS=16
+FDB_LIMIT=8
+
+FDB_TYPES=(
+	# name		is counted?	overrides learned?
+	'learned	1		0'
+	'static		0		1'
+	'user		0		1'
+	'extern_learn	0		1'
+	'local		0		1'
+)
+
+mac()
+{
+	printf "${TEST_MAC_BASE}%02x" "$1"
+}
+
+H1_DEFAULT_MAC=$(mac 42)
+
+switch_create()
+{
+	ip link add dev br0 type bridge
+
+	ip link set dev "$swp1" master br0
+	ip link set dev "$swp2" master br0
+	# swp3 is used to add local MACs, so do not add it to the bridge yet.
+
+	# swp2 is only used for replying when learning on swp1, its MAC should not be learned.
+	ip link set dev "$swp2" type bridge_slave learning off
+
+	ip link set dev br0 up
+
+	ip link set dev "$swp1" up
+	ip link set dev "$swp2" up
+	ip link set dev "$swp3" up
+}
+
+switch_destroy()
+{
+	ip link set dev "$swp3" down
+	ip link set dev "$swp2" down
+	ip link set dev "$swp1" down
+
+	ip link del dev br0
+}
+
+h_create()
+{
+	ip link set "$h1" addr "$H1_DEFAULT_MAC"
+
+	simple_if_init "$h1" 192.0.2.1/24
+	simple_if_init "$h2" 192.0.2.2/24
+}
+
+h_destroy()
+{
+	simple_if_fini "$h1" 192.0.2.1/24
+	simple_if_fini "$h2" 192.0.2.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	h2=${NETIFS[p3]}
+	swp2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p6]}
+
+	vrf_prepare
+
+	h_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h_destroy
+
+	vrf_cleanup
+}
+
+fdb_get_n_learned()
+{
+	ip -d -j link show dev br0 type bridge | \
+		jq '.[]["linkinfo"]["info_data"]["fdb_n_learned"]'
+}
+
+fdb_get_n_mac()
+{
+	local mac=${1}
+
+	bridge -j fdb show br br0 | \
+		jq "map(select(.mac == \"${mac}\" and (has(\"vlan\") | not))) | length"
+}
+
+fdb_fill_learned()
+{
+	local i
+
+	for i in $(seq 1 "$NUM_PKTS"); do
+		fdb_add learned "$(mac "$i")"
+	done
+}
+
+fdb_reset()
+{
+	bridge fdb flush dev br0
+
+	# Keep the default MAC address of h1 in the table. We set it to a different one when
+	# testing dynamic learning.
+	bridge fdb add "$H1_DEFAULT_MAC" dev "$swp1" master static use
+}
+
+fdb_add()
+{
+	local type=$1 mac=$2
+
+	case "$type" in
+		learned)
+			ip link set "$h1" addr "$mac"
+			# Wait for a reply so we implicitly wait until after the forwarding
+			# code finished and the FDB entry was created.
+			PING_COUNT=1 ping_do "$h1" 192.0.2.2
+			check_err $? "Failed to ping another bridge port"
+			ip link set "$h1" addr "$H1_DEFAULT_MAC"
+			;;
+		local)
+			ip link set dev "$swp3" addr "$mac" && ip link set "$swp3" master br0
+			;;
+		static)
+			bridge fdb replace "$mac" dev "$swp1" master static
+			;;
+		user)
+			bridge fdb replace "$mac" dev "$swp1" master static use
+			;;
+		extern_learn)
+			bridge fdb replace "$mac" dev "$swp1" master extern_learn
+			;;
+	esac
+
+	check_err $? "Failed to add a FDB entry of type ${type}"
+}
+
+fdb_del()
+{
+	local type=$1 mac=$2
+
+	case "$type" in
+		local)
+			ip link set "$swp3" nomaster
+			;;
+		*)
+			bridge fdb del "$mac" dev "$swp1" master
+			;;
+	esac
+
+	check_err $? "Failed to remove a FDB entry of type ${type}"
+}
+
+check_fdb_n_learned_support()
+{
+	if ! ip link help bridge 2>&1 | grep -q "fdb_max_learned"; then
+		echo "SKIP: iproute2 too old, missing bridge max learned support"
+		exit $ksft_skip
+	fi
+
+	ip link add dev br0 type bridge
+	local learned=$(fdb_get_n_learned)
+	ip link del dev br0
+	if [ "$learned" == "null" ]; then
+		echo "SKIP: kernel too old; bridge fdb_n_learned feature not supported."
+		exit $ksft_skip
+	fi
+}
+
+check_accounting_one_type()
+{
+	local type=$1 is_counted=$2 overrides_learned=$3
+	shift 3
+	RET=0
+
+	fdb_reset
+	fdb_add "$type" "$(mac 0)"
+	learned=$(fdb_get_n_learned)
+	[ "$learned" -ne "$is_counted" ]
+	check_fail $? "Inserted FDB type ${type}: Expected the count ${is_counted}, but got ${learned}"
+
+	fdb_del "$type" "$(mac 0)"
+	learned=$(fdb_get_n_learned)
+	[ "$learned" -ne 0 ]
+	check_fail $? "Removed FDB type ${type}: Expected the count 0, but got ${learned}"
+
+	if [ "$overrides_learned" -eq 1 ]; then
+		fdb_reset
+		fdb_add learned "$(mac 0)"
+		fdb_add "$type" "$(mac 0)"
+		learned=$(fdb_get_n_learned)
+		[ "$learned" -ne "$is_counted" ]
+		check_fail $? "Set a learned entry to FDB type ${type}: Expected the count ${is_counted}, but got ${learned}"
+		fdb_del "$type" "$(mac 0)"
+	fi
+
+	log_test "FDB accounting interacting with FDB type ${type}"
+}
+
+check_accounting()
+{
+	local type_args learned
+	RET=0
+
+	fdb_reset
+	learned=$(fdb_get_n_learned)
+	[ "$learned" -ne 0 ]
+	check_fail $? "Flushed the FDB table: Expected the count 0, but got ${learned}"
+
+	fdb_fill_learned
+	sleep 1
+
+	learned=$(fdb_get_n_learned)
+	[ "$learned" -ne "$NUM_PKTS" ]
+	check_fail $? "Filled the FDB table: Expected the count ${NUM_PKTS}, but got ${learned}"
+
+	log_test "FDB accounting"
+
+	for type_args in "${FDB_TYPES[@]}"; do
+		# This is intentional use of word splitting.
+		# shellcheck disable=SC2086
+		check_accounting_one_type $type_args
+	done
+}
+
+check_limit_one_type()
+{
+	local type=$1 is_counted=$2
+	local n_mac expected=$((1 - is_counted))
+	RET=0
+
+	fdb_reset
+	fdb_fill_learned
+
+	fdb_add "$type" "$(mac 0)"
+	n_mac=$(fdb_get_n_mac "$(mac 0)")
+	[ "$n_mac" -ne "$expected" ]
+	check_fail $? "Inserted FDB type ${type} at limit: Expected the count ${expected}, but got ${n_mac}"
+
+	log_test "FDB limits interacting with FDB type ${type}"
+}
+
+check_limit()
+{
+	local learned
+	RET=0
+
+	ip link set br0 type bridge fdb_max_learned "$FDB_LIMIT"
+
+	fdb_reset
+	fdb_fill_learned
+
+	learned=$(fdb_get_n_learned)
+	[ "$learned" -ne "$FDB_LIMIT" ]
+	check_fail $? "Filled the limited FDB table: Expected the count ${FDB_LIMIT}, but got ${learned}"
+
+	log_test "FDB limits"
+
+	for type_args in "${FDB_TYPES[@]}"; do
+		# This is intentional use of word splitting.
+		# shellcheck disable=SC2086
+		check_limit_one_type $type_args
+	done
+}
+
+check_fdb_n_learned_support
+
+trap cleanup EXIT
+
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh b/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh
new file mode 100755
index 000000000000..694de8ba97e4
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_fdb_local_vlan_0.sh
@@ -0,0 +1,387 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+ +-----------------------+ +-----------------------+
+# | H1 (vrf)              | | H2 (vrf)              | | H3 (vrf)              |
+# |    + $h1              | |    + $h2              | |    + $h3              |
+# |    | 192.0.2.1/28     | |    | 192.0.2.2/28     | |    | 192.0.2.18/28    |
+# |    | 2001:db8:1::1/64 | |    | 2001:db8:1::2/64 | |    | 2001:db8:2::2/64 |
+# |    |                  | |    |                  | |    |                  |
+# +----|------------------+ +----|------------------+ +----|------------------+
+#      |                         |                         |
+# +----|-------------------------|-------------------------|------------------+
+# | +--|-------------------------|------------------+      |                  |
+# | |  + $swp1                   + $swp2            |      + $swp3            |
+# | |                                               |        192.0.2.17/28    |
+# | |  BR1 (802.1q)                                 |        2001:db8:2::1/64 |
+# | |  192.0.2.3/28                                 |                         |
+# | |  2001:db8:1::3/64                             |                         |
+# | +-----------------------------------------------+                      SW |
+# +---------------------------------------------------------------------------+
+#
+#shellcheck disable=SC2317 # SC doesn't see our uses of functions.
+#shellcheck disable=SC2034 # ... and global variables
+
+ALL_TESTS="
+	test_d_no_sharing
+	test_d_sharing
+	test_q_no_sharing
+	test_q_sharing
+	test_addr_set
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+pMAC=00:11:22:33:44:55
+bMAC=00:11:22:33:44:66
+mMAC=00:11:22:33:44:77
+xMAC=00:11:22:33:44:88
+
+host_create()
+{
+	local h=$1; shift
+	local ipv4=$1; shift
+	local ipv6=$1; shift
+
+	adf_simple_if_init "$h" "$ipv4" "$ipv6"
+	adf_ip_route_add vrf "v$h" 192.0.2.16/28 nexthop via 192.0.2.3
+	adf_ip_route_add vrf "v$h" 2001:db8:2::/64 nexthop via 2001:db8:1::3
+}
+
+h3_create()
+{
+	adf_simple_if_init "$h3" 192.0.2.18/28 2001:db8:2::2/64
+	adf_ip_route_add vrf "v$h3" 192.0.2.0/28 nexthop via 192.0.2.17
+	adf_ip_route_add vrf "v$h3" 2001:db8:1::/64 nexthop via 2001:db8:2::1
+
+	tc qdisc add dev "$h3" clsact
+	defer tc qdisc del dev "$h3" clsact
+
+	tc filter add dev "$h3" ingress proto ip pref 104 \
+	   flower skip_hw ip_proto udp dst_port 4096 \
+	   action pass
+	defer tc filter del dev "$h3" ingress proto ip pref 104
+
+	tc qdisc add dev "$h2" clsact
+	defer tc qdisc del dev "$h2" clsact
+
+	tc filter add dev "$h2" ingress proto ip pref 104 \
+	   flower skip_hw ip_proto udp dst_port 4096 \
+	   action pass
+	defer tc filter del dev "$h2" ingress proto ip pref 104
+}
+
+switch_create()
+{
+	adf_ip_link_set_up "$swp1"
+
+	adf_ip_link_set_up "$swp2"
+
+	adf_ip_addr_add "$swp3" 192.0.2.17/28
+	adf_ip_addr_add "$swp3" 2001:db8:2::1/64
+	adf_ip_link_set_up "$swp3"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	adf_vrf_prepare
+	adf_forwarding_enable
+
+	host_create "$h1" 192.0.2.1/28 2001:db8:1::1/64
+	host_create "$h2" 192.0.2.2/28 2001:db8:1::2/64
+	h3_create
+
+	switch_create
+}
+
+adf_bridge_configure()
+{
+	local dev
+
+	adf_ip_addr_add br 192.0.2.3/28
+	adf_ip_addr_add br 2001:db8:1::3/64
+
+	adf_bridge_vlan_add dev br vid 1 pvid untagged self
+	adf_bridge_vlan_add dev br vid 2 self
+	adf_bridge_vlan_add dev br vid 3 self
+
+	for dev in "$swp1" "$swp2"; do
+		adf_ip_link_set_master "$dev" br
+		adf_bridge_vlan_add dev "$dev" vid 1 pvid untagged
+		adf_bridge_vlan_add dev "$dev" vid 2
+		adf_bridge_vlan_add dev "$dev" vid 3
+	done
+}
+
+adf_bridge_create()
+{
+	local mac
+
+	adf_ip_link_add br up type bridge vlan_default_pvid 0 "$@"
+	mac=$(mac_get br)
+	adf_bridge_configure
+	adf_ip_link_set_addr br "$mac"
+}
+
+check_fdb_local_vlan_0_support()
+{
+	if adf_ip_link_add XXbr up type bridge vlan_filtering 1 \
+			fdb_local_vlan_0 1 &>/dev/null; then
+		return 0
+	fi
+
+	log_test_skip "FDB sharing" \
+		      "iproute 2 or the kernel do not support fdb_local_vlan_0"
+}
+
+check_mac_presence()
+{
+	local should_fail=$1; shift
+	local dev=$1; shift
+	local vlan=$1; shift
+	local mac
+
+	mac=$(mac_get "$dev")
+
+	if ((vlan == 0)); then
+		vlan=null
+	fi
+
+	bridge -j fdb show dev "$dev" |
+	    jq -e --arg mac "$mac" --argjson vlan "$vlan" \
+	       '.[] | select(.mac == $mac) | select(.vlan == $vlan)' > /dev/null
+	check_err_fail "$should_fail" $? "FDB dev $dev vid $vlan addr $mac exists"
+}
+
+do_sharing_test()
+{
+	local should_fail=$1; shift
+	local what=$1; shift
+	local dev
+
+	RET=0
+
+	for dev in "$swp1" "$swp2" br; do
+		check_mac_presence 0 "$dev" 0
+		check_mac_presence "$should_fail" "$dev" 1
+		check_mac_presence "$should_fail" "$dev" 2
+		check_mac_presence "$should_fail" "$dev" 3
+	done
+
+	log_test "$what"
+}
+
+do_end_to_end_test()
+{
+	local mac=$1; shift
+	local what=$1; shift
+	local probe_dev=${1-$h3}; shift
+	local expect=${1-10}; shift
+
+	local t0
+	local t1
+	local dd
+
+	RET=0
+
+	# In mausezahn, use $dev MAC as the destination MAC. In the MAC sharing
+	# context, that will cause an FDB miss on VLAN 1 and prompt a second
+	# lookup in VLAN 0.
+
+	t0=$(tc_rule_stats_get "$probe_dev" 104 ingress)
+
+	$MZ "$h1" -c 10 -p 64 -a own -b "$mac" \
+		  -A 192.0.2.1 -B 192.0.2.18 -t udp "dp=4096,sp=2048" -q
+	sleep 1
+
+	t1=$(tc_rule_stats_get "$probe_dev" 104 ingress)
+	dd=$((t1 - t0))
+
+	((dd == expect))
+	check_err $? "Expected $expect packets on $probe_dev got $dd"
+
+	log_test "$what"
+}
+
+do_tests()
+{
+	local should_fail=$1; shift
+	local what=$1; shift
+	local swp1_mac
+	local br_mac
+
+	swp1_mac=$(mac_get "$swp1")
+	br_mac=$(mac_get br)
+
+	do_sharing_test "$should_fail" "$what"
+	do_end_to_end_test "$swp1_mac" "$what: end to end, $swp1 MAC"
+	do_end_to_end_test "$br_mac" "$what: end to end, br MAC"
+}
+
+bridge_standard()
+{
+	local vlan_filtering=$1; shift
+
+	if ((vlan_filtering)); then
+		echo 802.1q
+	else
+		echo 802.1d
+	fi
+}
+
+nonexistent_fdb_test()
+{
+	local vlan_filtering=$1; shift
+	local standard
+
+	standard=$(bridge_standard "$vlan_filtering")
+
+	# We expect flooding, so $h2 should get the traffic.
+	do_end_to_end_test "$xMAC" "$standard: Nonexistent FDB" "$h2"
+}
+
+misleading_fdb_test()
+{
+	local vlan_filtering=$1; shift
+	local standard
+
+	standard=$(bridge_standard "$vlan_filtering")
+
+	defer_scope_push
+		# Add an FDB entry on VLAN 0. The lookup on VLAN-aware bridge
+		# shouldn't pick this up even with fdb_local_vlan_0 enabled, so
+		# the traffic should be flooded. This all holds on
+		# vlan_filtering bridge, on non-vlan_filtering one the FDB entry
+		# is expected to be found as usual, no flooding takes place.
+		#
+		# Adding only on VLAN 0 is a bit tricky, because bridge is
+		# trying to be nice and interprets the request as if the FDB
+		# should be added on each VLAN.
+
+		bridge fdb add "$mMAC" dev "$swp1" master
+		bridge fdb del "$mMAC" dev "$swp1" vlan 1 master
+		bridge fdb del "$mMAC" dev "$swp1" vlan 2 master
+		bridge fdb del "$mMAC" dev "$swp1" vlan 3 master
+
+		local expect=$((vlan_filtering ? 10 : 0))
+		do_end_to_end_test "$mMAC" \
+				   "$standard: Lookup of non-local MAC on VLAN 0" \
+				   "$h2" "$expect"
+	defer_scope_pop
+}
+
+change_mac()
+{
+	local dev=$1; shift
+	local mac=$1; shift
+	local cur_mac
+
+	cur_mac=$(mac_get "$dev")
+
+	log_info "Change $dev MAC $cur_mac -> $mac"
+	adf_ip_link_set_addr "$dev" "$mac"
+	defer log_info "Change $dev MAC back"
+}
+
+do_test_no_sharing()
+{
+	local vlan_filtering=$1; shift
+	local standard
+
+	standard=$(bridge_standard "$vlan_filtering")
+
+	adf_bridge_create vlan_filtering "$vlan_filtering"
+	setup_wait
+
+	do_tests 0 "$standard, no FDB sharing"
+
+	change_mac "$swp1" "$pMAC"
+	change_mac br "$bMAC"
+
+	do_tests 0 "$standard, no FDB sharing after MAC change"
+
+	in_defer_scope check_fdb_local_vlan_0_support || return
+
+	log_info "Set fdb_local_vlan_0=1"
+	ip link set dev br type bridge fdb_local_vlan_0 1
+
+	do_tests 1 "$standard, fdb sharing after toggle"
+}
+
+do_test_sharing()
+{
+	local vlan_filtering=$1; shift
+	local standard
+
+	standard=$(bridge_standard "$vlan_filtering")
+
+	in_defer_scope check_fdb_local_vlan_0_support || return
+
+	adf_bridge_create vlan_filtering "$vlan_filtering" fdb_local_vlan_0 1
+	setup_wait
+
+	do_tests 1 "$standard, FDB sharing"
+
+	nonexistent_fdb_test "$vlan_filtering"
+	misleading_fdb_test "$vlan_filtering"
+
+	change_mac "$swp1" "$pMAC"
+	change_mac br "$bMAC"
+
+	do_tests 1 "$standard, FDB sharing after MAC change"
+
+	log_info "Set fdb_local_vlan_0=0"
+	ip link set dev br type bridge fdb_local_vlan_0 0
+
+	do_tests 0 "$standard, No FDB sharing after toggle"
+}
+
+test_d_no_sharing()
+{
+	do_test_no_sharing 0
+}
+
+test_d_sharing()
+{
+	do_test_sharing 0
+}
+
+test_q_no_sharing()
+{
+	do_test_no_sharing 1
+}
+
+test_q_sharing()
+{
+	do_test_sharing 1
+}
+
+adf_addr_set_bridge_create()
+{
+	adf_ip_link_add br up type bridge vlan_filtering 0
+	adf_ip_link_set_addr br "$(mac_get br)"
+	adf_bridge_configure
+}
+
+test_addr_set()
+{
+	adf_addr_set_bridge_create
+	setup_wait
+
+	do_end_to_end_test "$(mac_get br)" "NET_ADDR_SET: end to end, br MAC"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+tests_run
diff --git a/tools/testing/selftests/net/forwarding/bridge_igmp.sh b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
new file mode 100755
index 000000000000..d4e7dd659354
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
@@ -0,0 +1,636 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	v2reportleave_test
+	v3include_test
+	v3inc_allow_test
+	v3inc_is_include_test
+	v3inc_is_exclude_test
+	v3inc_to_exclude_test
+	v3exc_allow_test
+	v3exc_is_include_test
+	v3exc_is_exclude_test
+	v3exc_to_exclude_test
+	v3inc_block_test
+	v3exc_block_test
+	v3exc_timeout_test
+	v3star_ex_auto_add_test
+	v2per_vlan_snooping_port_stp_test
+	v2per_vlan_snooping_vlan_stp_test
+"
+NUM_NETIFS=4
+CHECK_TC="yes"
+TEST_GROUP="239.10.10.10"
+TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
+
+ALL_GROUP="224.0.0.1"
+ALL_MAC="01:00:5e:00:00:01"
+
+# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.1,192.0.2.2,192.0.2.3
+MZPKT_IS_INC="22:00:9d:de:00:00:00:01:01:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:02:c0:00:02:03"
+# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.10,192.0.2.11,192.0.2.12
+MZPKT_IS_INC2="22:00:9d:c3:00:00:00:01:01:00:00:03:ef:0a:0a:0a:c0:00:02:0a:c0:00:02:0b:c0:00:02:0c"
+# IGMPv3 is_in report: grp 239.10.10.10 is_include 192.0.2.20,192.0.2.30
+MZPKT_IS_INC3="22:00:5f:b4:00:00:00:01:01:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
+# IGMPv3 allow report: grp 239.10.10.10 allow 192.0.2.10,192.0.2.11,192.0.2.12
+MZPKT_ALLOW="22:00:99:c3:00:00:00:01:05:00:00:03:ef:0a:0a:0a:c0:00:02:0a:c0:00:02:0b:c0:00:02:0c"
+# IGMPv3 allow report: grp 239.10.10.10 allow 192.0.2.20,192.0.2.30
+MZPKT_ALLOW2="22:00:5b:b4:00:00:00:01:05:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
+# IGMPv3 is_ex report: grp 239.10.10.10 is_exclude 192.0.2.1,192.0.2.2,192.0.2.20,192.0.2.21
+MZPKT_IS_EXC="22:00:da:b6:00:00:00:01:02:00:00:04:ef:0a:0a:0a:c0:00:02:01:c0:00:02:02:c0:00:02:14:c0:00:02:15"
+# IGMPv3 is_ex report: grp 239.10.10.10 is_exclude 192.0.2.20,192.0.2.30
+MZPKT_IS_EXC2="22:00:5e:b4:00:00:00:01:02:00:00:02:ef:0a:0a:0a:c0:00:02:14:c0:00:02:1e"
+# IGMPv3 to_ex report: grp 239.10.10.10 to_exclude 192.0.2.1,192.0.2.20,192.0.2.30
+MZPKT_TO_EXC="22:00:9a:b1:00:00:00:01:04:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:14:c0:00:02:1e"
+# IGMPv3 block report: grp 239.10.10.10 block 192.0.2.1,192.0.2.20,192.0.2.30
+MZPKT_BLOCK="22:00:98:b1:00:00:00:01:06:00:00:03:ef:0a:0a:0a:c0:00:02:01:c0:00:02:14:c0:00:02:1e"
+
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+v2reportleave_test()
+{
+	RET=0
+	ip address add dev $h2 $TEST_GROUP/32 autojoin
+	check_err $? "Could not join $TEST_GROUP"
+
+	sleep 5
+	bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+	check_err $? "IGMPv2 report didn't create mdb entry for $TEST_GROUP"
+
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
+
+	log_test "IGMPv2 report $TEST_GROUP"
+
+	RET=0
+	bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+	check_err $? "mdb entry for $TEST_GROUP is missing"
+
+	ip address del dev $h2 $TEST_GROUP/32
+	check_err $? "Could not leave $TEST_GROUP"
+
+	sleep 5
+	bridge mdb show dev br0 | grep $TEST_GROUP 1>/dev/null
+	check_fail $? "Leave didn't delete mdb entry for $TEST_GROUP"
+
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_err $? "Traffic to $TEST_GROUP was forwarded without mdb entry"
+
+	log_test "IGMPv2 leave $TEST_GROUP"
+}
+
+v3include_prepare()
+{
+	local host1_if=$1
+	local mac=$2
+	local group=$3
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.3")
+
+	ip link set dev br0 type bridge mcast_igmp_version 3
+	check_err $? "Could not change bridge IGMP version to 3"
+
+	$MZ $host1_if -b $mac -c 1 -B $group -t ip "proto=2,p=$MZPKT_IS_INC" -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .source_list != null)" &>/dev/null
+	check_err $? "Missing *,G entry with source list"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"include\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+	brmcast_check_sg_entries "is_include" "${X[@]}"
+}
+
+v3exclude_prepare()
+{
+	local host1_if=$1
+	local mac=$2
+	local group=$3
+	local pkt=$4
+	local X=("192.0.2.1" "192.0.2.2")
+	local Y=("192.0.2.20" "192.0.2.21")
+
+	v3include_prepare $host1_if $mac $group
+
+	$MZ $host1_if -c 1 -b $mac -B $group -t ip "proto=2,p=$MZPKT_IS_EXC" -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"exclude\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	brmcast_check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.3\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.3 entry still exists"
+}
+
+v3cleanup()
+{
+	local port=$1
+	local group=$2
+
+	bridge mdb del dev br0 port $port grp $group
+	ip link set dev br0 type bridge mcast_igmp_version 2
+}
+
+v3include_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.3")
+
+	v3include_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "192.0.2.100"
+
+	log_test "IGMPv3 report $TEST_GROUP is_include"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3inc_allow_test()
+{
+	RET=0
+	local X=("192.0.2.10" "192.0.2.11" "192.0.2.12")
+
+	v3include_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW" -q
+	sleep 1
+	brmcast_check_sg_entries "allow" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "192.0.2.100"
+
+	log_test "IGMPv3 report $TEST_GROUP include -> allow"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3inc_is_include_test()
+{
+	RET=0
+	local X=("192.0.2.10" "192.0.2.11" "192.0.2.12")
+
+	v3include_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC2" -q
+	sleep 1
+	brmcast_check_sg_entries "is_include" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "192.0.2.100"
+
+	log_test "IGMPv3 report $TEST_GROUP include -> is_include"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3inc_is_exclude_test()
+{
+	RET=0
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP include -> is_exclude"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3inc_to_exclude_test()
+{
+	RET=0
+	local X=("192.0.2.1")
+	local Y=("192.0.2.20" "192.0.2.30")
+
+	v3include_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_TO_EXC" -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"exclude\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	brmcast_check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.2\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.2 entry still exists"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.21\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.21 entry still exists"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP include -> to_exclude"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_allow_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.20" "192.0.2.30")
+	local Y=("192.0.2.21")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW2" -q
+	sleep 1
+	brmcast_check_sg_entries "allow" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> allow"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_is_include_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.20" "192.0.2.30")
+	local Y=("192.0.2.21")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC3" -q
+	sleep 1
+	brmcast_check_sg_entries "is_include" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> is_include"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_is_exclude_test()
+{
+	RET=0
+	local X=("192.0.2.30")
+	local Y=("192.0.2.20")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_EXC2" -q
+	sleep 1
+	brmcast_check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> is_exclude"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_to_exclude_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.30")
+	local Y=("192.0.2.20")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_TO_EXC" -q
+	sleep 1
+	brmcast_check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> to_exclude"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3inc_block_test()
+{
+	RET=0
+	local X=("192.0.2.2" "192.0.2.3")
+
+	v3include_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_BLOCK" -q
+	# make sure the lowered timers have expired (by default 2 seconds)
+	sleep 3
+	brmcast_check_sg_entries "block" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.1\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.1 entry still exists"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "192.0.2.100"
+
+	log_test "IGMPv3 report $TEST_GROUP include -> block"
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_block_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.30")
+	local Y=("192.0.2.20" "192.0.2.21")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_BLOCK" -q
+	sleep 1
+	brmcast_check_sg_entries "block" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> block"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3exc_timeout_test()
+{
+	RET=0
+	local X=("192.0.2.20" "192.0.2.30")
+
+	# GMI should be 5 seconds
+	ip link set dev br0 type bridge mcast_query_interval 100 \
+					mcast_query_response_interval 100 \
+					mcast_membership_interval 500
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+	ip link set dev br0 type bridge mcast_query_interval 500 \
+					mcast_query_response_interval 500 \
+					mcast_membership_interval 1500
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_ALLOW2" -q
+	sleep 5
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"include\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.1\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.1 entry still exists"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"192.0.2.2\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 192.0.2.2 entry still exists"
+
+	brmcast_check_sg_entries "allow" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 192.0.2.100
+
+	log_test "IGMPv3 group $TEST_GROUP exclude timeout"
+
+	ip link set dev br0 type bridge mcast_query_interval 12500 \
+					mcast_query_response_interval 1000 \
+					mcast_membership_interval 26000
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
+v3star_ex_auto_add_test()
+{
+	RET=0
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	$MZ $h2 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_IS_INC" -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .src == \"192.0.2.3\" and \
+				.port == \"$swp1\")" &>/dev/null
+	check_err $? "S,G entry for *,G port doesn't exist"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .src == \"192.0.2.3\" and \
+				.port == \"$swp1\" and \
+				.flags[] == \"added_by_star_ex\")" &>/dev/null
+	check_err $? "Auto-added S,G entry doesn't have added_by_star_ex flag"
+
+	brmcast_check_sg_fwding 1 192.0.2.3
+
+	log_test "IGMPv3 S,G port entry automatic add to a *,G port"
+
+	v3cleanup $swp1 $TEST_GROUP
+	v3cleanup $swp2 $TEST_GROUP
+}
+
+v2per_vlan_snooping_stp_test()
+{
+	local is_port=$1
+
+	local msg="port"
+	[[ $is_port -ne 1 ]] && msg="vlan"
+
+	ip link set br0 up type bridge vlan_filtering 1 \
+					mcast_igmp_version 2 \
+					mcast_snooping 1 \
+					mcast_vlan_snooping 1 \
+					mcast_querier 1 \
+					mcast_stats_enabled 1
+	bridge vlan global set vid 1 dev br0 \
+					mcast_snooping 1 \
+					mcast_querier 1 \
+					mcast_query_interval 100 \
+					mcast_startup_query_count 0
+	[[ $is_port -eq 1 ]] && bridge link set dev $swp1 state 0
+	[[ $is_port -ne 1 ]] && bridge vlan set vid 1 dev $swp1 state 4
+	sleep 5
+	local tx_s=$(ip -j -p stats show dev $swp1 \
+			group xstats_slave subgroup bridge suite mcast \
+			| jq '.[]["multicast"]["igmp_queries"]["tx_v2"]')
+
+	[[ $is_port -eq 1 ]] && bridge link set dev $swp1 state 3
+	[[ $is_port -ne 1 ]] && bridge vlan set vid 1 dev $swp1 state 3
+	sleep 5
+	local tx_e=$(ip -j -p stats show dev $swp1 \
+			group xstats_slave subgroup bridge suite mcast \
+			| jq '.[]["multicast"]["igmp_queries"]["tx_v2"]')
+
+	RET=0
+	local tx=$(expr $tx_e - $tx_s)
+	test $tx -gt 0
+	check_err $? "No IGMP queries after STP state becomes forwarding"
+	log_test "per vlan snooping with $msg stp state change"
+
+	# restore settings
+	bridge vlan global set vid 1 dev br0 \
+					mcast_querier 0 \
+					mcast_query_interval 12500 \
+					mcast_startup_query_count 2
+	ip link set br0 up type bridge vlan_filtering 0 \
+					mcast_vlan_snooping 0 \
+					mcast_stats_enabled 0
+}
+
+v2per_vlan_snooping_port_stp_test()
+{
+	v2per_vlan_snooping_stp_test 1
+}
+
+v2per_vlan_snooping_vlan_stp_test()
+{
+	v2per_vlan_snooping_stp_test 0
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_locked_port.sh b/tools/testing/selftests/net/forwarding/bridge_locked_port.sh
new file mode 100755
index 000000000000..c62331b2e006
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_locked_port.sh
@@ -0,0 +1,365 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	locked_port_ipv4
+	locked_port_ipv6
+	locked_port_vlan
+	locked_port_mab
+	locked_port_mab_roam
+	locked_port_mab_config
+	locked_port_mab_flush
+	locked_port_mab_redirect
+"
+
+NUM_NETIFS=4
+CHECK_TC="no"
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+	vlan_create $h1 100 v$h1 198.51.100.1/24
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 100
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+	vlan_create $h2 100 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 100
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge vlan_filtering 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	bridge link set dev $swp1 learning off
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+locked_port_ipv4()
+{
+	RET=0
+
+	check_locked_port_support || return 0
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work before locking port"
+
+	bridge link set dev $swp1 locked on
+
+	ping_do $h1 192.0.2.2
+	check_fail $? "Ping worked after locking port, but before adding FDB entry"
+
+	bridge fdb add `mac_get $h1` dev $swp1 master static
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work after locking port and adding FDB entry"
+
+	bridge link set dev $swp1 locked off
+	bridge fdb del `mac_get $h1` dev $swp1 master static
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work after unlocking port and removing FDB entry."
+
+	log_test "Locked port ipv4"
+}
+
+locked_port_vlan()
+{
+	RET=0
+
+	check_locked_port_support || return 0
+
+	bridge vlan add vid 100 dev $swp1
+	bridge vlan add vid 100 dev $swp2
+
+	ping_do $h1.100 198.51.100.2
+	check_err $? "Ping through vlan did not work before locking port"
+
+	bridge link set dev $swp1 locked on
+	ping_do $h1.100 198.51.100.2
+	check_fail $? "Ping through vlan worked after locking port, but before adding FDB entry"
+
+	bridge fdb add `mac_get $h1` dev $swp1 vlan 100 master static
+
+	ping_do $h1.100 198.51.100.2
+	check_err $? "Ping through vlan did not work after locking port and adding FDB entry"
+
+	bridge link set dev $swp1 locked off
+	bridge fdb del `mac_get $h1` dev $swp1 vlan 100 master static
+
+	ping_do $h1.100 198.51.100.2
+	check_err $? "Ping through vlan did not work after unlocking port and removing FDB entry"
+
+	bridge vlan del vid 100 dev $swp1
+	bridge vlan del vid 100 dev $swp2
+	log_test "Locked port vlan"
+}
+
+locked_port_ipv6()
+{
+	RET=0
+	check_locked_port_support || return 0
+
+	ping6_do $h1 2001:db8:1::2
+	check_err $? "Ping6 did not work before locking port"
+
+	bridge link set dev $swp1 locked on
+
+	ping6_do $h1 2001:db8:1::2
+	check_fail $? "Ping6 worked after locking port, but before adding FDB entry"
+
+	bridge fdb add `mac_get $h1` dev $swp1 master static
+	ping6_do $h1 2001:db8:1::2
+	check_err $? "Ping6 did not work after locking port and adding FDB entry"
+
+	bridge link set dev $swp1 locked off
+	bridge fdb del `mac_get $h1` dev $swp1 master static
+
+	ping6_do $h1 2001:db8:1::2
+	check_err $? "Ping6 did not work after unlocking port and removing FDB entry"
+
+	log_test "Locked port ipv6"
+}
+
+locked_port_mab()
+{
+	RET=0
+	check_port_mab_support || return 0
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work before locking port"
+
+	bridge link set dev $swp1 learning on locked on
+
+	ping_do $h1 192.0.2.2
+	check_fail $? "Ping worked on a locked port without an FDB entry"
+
+	bridge fdb get `mac_get $h1` br br0 vlan 1 &> /dev/null
+	check_fail $? "FDB entry created before enabling MAB"
+
+	bridge link set dev $swp1 learning on locked on mab on
+
+	ping_do $h1 192.0.2.2
+	check_fail $? "Ping worked on MAB enabled port without an FDB entry"
+
+	bridge fdb get `mac_get $h1` br br0 vlan 1 | grep "dev $swp1" | grep -q "locked"
+	check_err $? "Locked FDB entry not created"
+
+	bridge fdb replace `mac_get $h1` dev $swp1 master static
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work after replacing FDB entry"
+
+	bridge fdb get `mac_get $h1` br br0 vlan 1 | grep "dev $swp1" | grep -q "locked"
+	check_fail $? "FDB entry marked as locked after replacement"
+
+	bridge fdb del `mac_get $h1` dev $swp1 master
+	bridge link set dev $swp1 learning off locked off mab off
+
+	log_test "Locked port MAB"
+}
+
+# Check that entries cannot roam to a locked port, but that entries can roam
+# to an unlocked port.
+locked_port_mab_roam()
+{
+	local mac=a0:b0:c0:c0:b0:a0
+
+	RET=0
+	check_port_mab_support || return 0
+
+	bridge link set dev $swp1 learning on locked on mab on
+
+	$MZ $h1 -q -c 5 -d 100msec -t udp -a $mac -b rand
+	bridge fdb get $mac br br0 vlan 1 | grep "dev $swp1" | grep -q "locked"
+	check_err $? "No locked entry on first injection"
+
+	$MZ $h2 -q -c 5 -d 100msec -t udp -a $mac -b rand
+	bridge fdb get $mac br br0 vlan 1 | grep -q "dev $swp2"
+	check_err $? "Entry did not roam to an unlocked port"
+
+	bridge fdb get $mac br br0 vlan 1 | grep -q "locked"
+	check_fail $? "Entry roamed with locked flag on"
+
+	$MZ $h1 -q -c 5 -d 100msec -t udp -a $mac -b rand
+	bridge fdb get $mac br br0 vlan 1 | grep -q "dev $swp1"
+	check_fail $? "Entry roamed back to locked port"
+
+	bridge fdb del $mac vlan 1 dev $swp2 master
+	bridge link set dev $swp1 learning off locked off mab off
+
+	log_test "Locked port MAB roam"
+}
+
+# Check that MAB can only be enabled on a port that is both locked and has
+# learning enabled.
+locked_port_mab_config()
+{
+	RET=0
+	check_port_mab_support || return 0
+
+	bridge link set dev $swp1 learning on locked off mab on &> /dev/null
+	check_fail $? "MAB enabled while port is unlocked"
+
+	bridge link set dev $swp1 learning off locked on mab on &> /dev/null
+	check_fail $? "MAB enabled while port has learning disabled"
+
+	bridge link set dev $swp1 learning on locked on mab on
+	check_err $? "Failed to enable MAB when port is locked and has learning enabled"
+
+	bridge link set dev $swp1 learning off locked off mab off
+
+	log_test "Locked port MAB configuration"
+}
+
+# Check that locked FDB entries are flushed from a port when MAB is disabled.
+locked_port_mab_flush()
+{
+	local locked_mac1=00:01:02:03:04:05
+	local unlocked_mac1=00:01:02:03:04:06
+	local locked_mac2=00:01:02:03:04:07
+	local unlocked_mac2=00:01:02:03:04:08
+
+	RET=0
+	check_port_mab_support || return 0
+
+	bridge link set dev $swp1 learning on locked on mab on
+	bridge link set dev $swp2 learning on locked on mab on
+
+	# Create regular and locked FDB entries on each port.
+	bridge fdb add $unlocked_mac1 dev $swp1 vlan 1 master static
+	bridge fdb add $unlocked_mac2 dev $swp2 vlan 1 master static
+
+	$MZ $h1 -q -c 5 -d 100msec -t udp -a $locked_mac1 -b rand
+	bridge fdb get $locked_mac1 br br0 vlan 1 | grep "dev $swp1" | \
+		grep -q "locked"
+	check_err $? "Failed to create locked FDB entry on first port"
+
+	$MZ $h2 -q -c 5 -d 100msec -t udp -a $locked_mac2 -b rand
+	bridge fdb get $locked_mac2 br br0 vlan 1 | grep "dev $swp2" | \
+		grep -q "locked"
+	check_err $? "Failed to create locked FDB entry on second port"
+
+	# Disable MAB on the first port and check that only the first locked
+	# FDB entry was flushed.
+	bridge link set dev $swp1 mab off
+
+	bridge fdb get $unlocked_mac1 br br0 vlan 1 &> /dev/null
+	check_err $? "Regular FDB entry on first port was flushed after disabling MAB"
+
+	bridge fdb get $unlocked_mac2 br br0 vlan 1 &> /dev/null
+	check_err $? "Regular FDB entry on second port was flushed after disabling MAB"
+
+	bridge fdb get $locked_mac1 br br0 vlan 1 &> /dev/null
+	check_fail $? "Locked FDB entry on first port was not flushed after disabling MAB"
+
+	bridge fdb get $locked_mac2 br br0 vlan 1 &> /dev/null
+	check_err $? "Locked FDB entry on second port was flushed after disabling MAB"
+
+	bridge fdb del $unlocked_mac2 dev $swp2 vlan 1 master static
+	bridge fdb del $unlocked_mac1 dev $swp1 vlan 1 master static
+
+	bridge link set dev $swp2 learning on locked off mab off
+	bridge link set dev $swp1 learning off locked off mab off
+
+	log_test "Locked port MAB FDB flush"
+}
+
+# Check that traffic can be redirected from a locked bridge port and that it
+# does not create locked FDB entries.
+locked_port_mab_redirect()
+{
+	RET=0
+	check_port_mab_support || return 0
+
+	tc qdisc add dev $swp1 clsact
+	tc filter add dev $swp1 ingress protocol all pref 1 handle 101 flower \
+		action mirred egress redirect dev $swp2
+	bridge link set dev $swp1 learning on locked on mab on
+
+	ping_do $h1 192.0.2.2
+	check_err $? "Ping did not work with redirection"
+
+	bridge fdb get `mac_get $h1` br br0 vlan 1 2> /dev/null | \
+		grep "dev $swp1" | grep -q "locked"
+	check_fail $? "Locked entry created for redirected traffic"
+
+	tc filter del dev $swp1 ingress protocol all pref 1 handle 101 flower
+
+	ping_do $h1 192.0.2.2
+	check_fail $? "Ping worked without redirection"
+
+	bridge fdb get `mac_get $h1` br br0 vlan 1 2> /dev/null | \
+		grep "dev $swp1" | grep -q "locked"
+	check_err $? "Locked entry not created after deleting filter"
+
+	bridge fdb del `mac_get $h1` vlan 1 dev $swp1 master
+	bridge link set dev $swp1 learning off locked off mab off
+	tc qdisc del dev $swp1 clsact
+
+	log_test "Locked port MAB redirect"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb.sh b/tools/testing/selftests/net/forwarding/bridge_mdb.sh
new file mode 100755
index 000000000000..e86d77946585
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb.sh
@@ -0,0 +1,1467 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# | + $h1.10              |                          | + $h2.10               |
+# | | 192.0.2.1/28        |                          | | 192.0.2.2/28         |
+# | | 2001:db8:1::1/64    |                          | | 2001:db8:1::2/64     |
+# | |                     |                          | |                      |
+# | |  + $h1.20           |                          | |  + $h2.20            |
+# | \  | 198.51.100.1/24  |                          | \  | 198.51.100.2/24   |
+# |  \ | 2001:db8:2::1/64 |                          |  \ | 2001:db8:2::2/64  |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR0 (802.1q)             + $swp2           | |
+# | |     vid 10                                             vid 10         | |
+# | |     vid 20                                             vid 20         | |
+# | |                                                                       | |
+# | +-----------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	cfg_test
+	fwd_test
+	ctrl_test
+	disable_test
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create $h1 20 v$h1 198.51.100.1/24 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 10 v$h2 192.0.2.2/28
+	vlan_create $h2 20 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	simple_if_fini $h2
+}
+
+switch_create()
+{
+	local vlan_filtering=$1; shift
+
+	ip link add name br0 type bridge \
+		vlan_filtering "$vlan_filtering" vlan_default_pvid 0 \
+		mcast_snooping 1 mcast_igmp_version 3 mcast_mld_version 2
+	bridge vlan add vid 10 dev br0 self
+	bridge vlan add vid 20 dev br0 self
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan add vid 20 dev $swp1
+
+	ip link set dev $swp2 master br0
+	ip link set dev $swp2 up
+	bridge vlan add vid 10 dev $swp2
+	bridge vlan add vid 20 dev $swp2
+
+	tc qdisc add dev br0 clsact
+	tc qdisc add dev $h2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	tc qdisc del dev br0 clsact
+
+	bridge vlan del vid 20 dev $swp2
+	bridge vlan del vid 10 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 20 dev $swp1
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev br0 down
+	bridge vlan del vid 20 dev br0 self
+	bridge vlan del vid 10 dev br0 self
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create 1
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+cfg_test_host_common()
+{
+	local name=$1; shift
+	local grp=$1; shift
+	local src=$1; shift
+	local state=$1; shift
+	local invalid_state=$1; shift
+
+	RET=0
+
+	# Check basic add, replace and delete behavior.
+	bridge mdb add dev br0 port br0 grp $grp $state vid 10
+	bridge mdb get dev br0 grp $grp vid 10 &> /dev/null
+	check_err $? "Failed to add $name host entry"
+
+	bridge mdb replace dev br0 port br0 grp $grp $state vid 10 &> /dev/null
+	check_err $? "Failed to replace $name host entry"
+
+	bridge mdb del dev br0 port br0 grp $grp $state vid 10
+	bridge mdb get dev br0 grp $grp vid 10 &> /dev/null
+	check_fail $? "Failed to delete $name host entry"
+
+	# Check error cases.
+	bridge mdb add dev br0 port br0 grp $grp $invalid_state vid 10 \
+		&> /dev/null
+	check_fail $? "Managed to add $name host entry with a $invalid_state state"
+
+	bridge mdb add dev br0 port br0 grp $grp src $src $state vid 10 \
+		&> /dev/null
+	check_fail $? "Managed to add $name host entry with a source"
+
+	bridge mdb add dev br0 port br0 grp $grp $state vid 10 \
+		filter_mode exclude &> /dev/null
+	check_fail $? "Managed to add $name host entry with a filter mode"
+
+	bridge mdb add dev br0 port br0 grp $grp $state vid 10 \
+		source_list $src &> /dev/null
+	check_fail $? "Managed to add $name host entry with a source list"
+
+	bridge mdb add dev br0 port br0 grp $grp $state vid 10 \
+		proto 123 &> /dev/null
+	check_fail $? "Managed to add $name host entry with a protocol"
+
+	log_test "Common host entries configuration tests ($name)"
+}
+
+# Check configuration of host entries from all types.
+cfg_test_host()
+{
+	echo
+	log_info "# Host entries configuration tests"
+
+	cfg_test_host_common "IPv4" "239.1.1.1" "192.0.2.1" "temp" "permanent"
+	cfg_test_host_common "IPv6" "ff0e::1" "2001:db8:1::1" "temp" "permanent"
+	cfg_test_host_common "L2" "01:02:03:04:05:06" "00:00:00:00:00:01" \
+		"permanent" "temp"
+}
+
+cfg_test_port_common()
+{
+	local name=$1;shift
+	local grp_key=$1; shift
+
+	RET=0
+
+	# Check basic add, replace and delete behavior.
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 10
+	bridge mdb get dev br0 $grp_key vid 10 &> /dev/null
+	check_err $? "Failed to add $name entry"
+
+	bridge mdb replace dev br0 port $swp1 $grp_key permanent vid 10 \
+		&> /dev/null
+	check_err $? "Failed to replace $name entry"
+
+	bridge mdb del dev br0 port $swp1 $grp_key permanent vid 10
+	bridge mdb get dev br0 $grp_key vid 10 &> /dev/null
+	check_fail $? "Failed to delete $name entry"
+
+	# Check default protocol and replacement.
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 10
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "static"
+	check_err $? "$name entry not added with default \"static\" protocol"
+
+	bridge mdb replace dev br0 port $swp1 $grp_key permanent vid 10 \
+		proto 123
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "123"
+	check_err $? "Failed to replace protocol of $name entry"
+	bridge mdb del dev br0 port $swp1 $grp_key permanent vid 10
+
+	# Check behavior when VLAN is not specified.
+	bridge mdb add dev br0 port $swp1 $grp_key permanent
+	bridge mdb get dev br0 $grp_key vid 10 &> /dev/null
+	check_err $? "$name entry with VLAN 10 not added when VLAN was not specified"
+	bridge mdb get dev br0 $grp_key vid 20 &> /dev/null
+	check_err $? "$name entry with VLAN 20 not added when VLAN was not specified"
+
+	bridge mdb del dev br0 port $swp1 $grp_key permanent
+	bridge mdb get dev br0 $grp_key vid 10 &> /dev/null
+	check_fail $? "$name entry with VLAN 10 not deleted when VLAN was not specified"
+	bridge mdb get dev br0 $grp_key vid 20 &> /dev/null
+	check_fail $? "$name entry with VLAN 20 not deleted when VLAN was not specified"
+
+	# Check behavior when bridge port is down.
+	ip link set dev $swp1 down
+
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 10
+	check_err $? "Failed to add $name permanent entry when bridge port is down"
+
+	bridge mdb del dev br0 port $swp1 $grp_key permanent vid 10
+
+	bridge mdb add dev br0 port $swp1 $grp_key temp vid 10 &> /dev/null
+	check_fail $? "Managed to add $name temporary entry when bridge port is down"
+
+	ip link set dev $swp1 up
+	setup_wait_dev $swp1
+
+	# Check error cases.
+	ip link set dev br0 down
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 10 \
+		&> /dev/null
+	check_fail $? "Managed to add $name entry when bridge is down"
+	ip link set dev br0 up
+
+	ip link set dev br0 type bridge mcast_snooping 0
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid \
+		10 &> /dev/null
+	check_fail $? "Managed to add $name entry when multicast snooping is disabled"
+	ip link set dev br0 type bridge mcast_snooping 1
+
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 5000 \
+		&> /dev/null
+	check_fail $? "Managed to add $name entry with an invalid VLAN"
+
+	log_test "Common port group entries configuration tests ($name)"
+}
+
+src_list_create()
+{
+	local src_prefix=$1; shift
+	local num_srcs=$1; shift
+	local src_list
+	local i
+
+	for i in $(seq 1 $num_srcs); do
+		src_list=${src_list},${src_prefix}${i}
+	done
+
+	echo $src_list | cut -c 2-
+}
+
+__cfg_test_port_ip_star_g()
+{
+	local name=$1; shift
+	local grp=$1; shift
+	local invalid_grp=$1; shift
+	local src_prefix=$1; shift
+	local src1=${src_prefix}1
+	local src2=${src_prefix}2
+	local src3=${src_prefix}3
+	local max_srcs=31
+	local num_srcs
+
+	RET=0
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "exclude"
+	check_err $? "Default filter mode is not \"exclude\""
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check basic add and delete behavior.
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode exclude \
+		source_list $src1
+	bridge -d mdb get dev br0 grp $grp vid 10 &> /dev/null
+	check_err $? "(*, G) entry not created"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 &> /dev/null
+	check_err $? "(S, G) entry not created"
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+	bridge -d mdb get dev br0 grp $grp vid 10 &> /dev/null
+	check_fail $? "(*, G) entry not deleted"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 &> /dev/null
+	check_fail $? "(S, G) entry not deleted"
+
+	## State (permanent / temp) tests.
+
+	# Check that group and source timer are not set for permanent entries.
+	bridge mdb add dev br0 port $swp1 grp $grp permanent vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "permanent"
+	check_err $? "(*, G) entry not added as \"permanent\" when should"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | \
+		grep -q "permanent"
+	check_err $? "(S, G) entry not added as \"permanent\" when should"
+
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q " 0.00"
+	check_err $? "(*, G) \"permanent\" entry has a pending group timer"
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q "/0.00"
+	check_err $? "\"permanent\" source entry has a pending source timer"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that group timer is set for temporary (*, G) EXCLUDE, but not
+	# the source timer.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "temp"
+	check_err $? "(*, G) EXCLUDE entry not added as \"temp\" when should"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "temp"
+	check_err $? "(S, G) \"blocked\" entry not added as \"temp\" when should"
+
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q " 0.00"
+	check_fail $? "(*, G) EXCLUDE entry does not have a pending group timer"
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q "/0.00"
+	check_err $? "\"blocked\" source entry has a pending source timer"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that group timer is not set for temporary (*, G) INCLUDE, but
+	# that the source timer is set.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode include source_list $src1
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "temp"
+	check_err $? "(*, G) INCLUDE entry not added as \"temp\" when should"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "temp"
+	check_err $? "(S, G) entry not added as \"temp\" when should"
+
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q " 0.00"
+	check_err $? "(*, G) INCLUDE entry has a pending group timer"
+	bridge -d -s mdb get dev br0 grp $grp vid 10 | grep -q "/0.00"
+	check_fail $? "Source entry does not have a pending source timer"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that group timer is never set for (S, G) entries.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode include source_list $src1
+
+	bridge -d -s mdb get dev br0 grp $grp src $src1 vid 10 | grep -q " 0.00"
+	check_err $? "(S, G) entry has a pending group timer"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	## Filter mode (include / exclude) tests.
+
+	# Check that (*, G) INCLUDE entries are added with correct filter mode
+	# and that (S, G) entries are not marked as "blocked".
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 \
+		filter_mode include source_list $src1
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "include"
+	check_err $? "(*, G) INCLUDE not added with \"include\" filter mode"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "blocked"
+	check_fail $? "(S, G) entry marked as \"blocked\" when should not"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that (*, G) EXCLUDE entries are added with correct filter mode
+	# and that (S, G) entries are marked as "blocked".
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "exclude"
+	check_err $? "(*, G) EXCLUDE not added with \"exclude\" filter mode"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "blocked"
+	check_err $? "(S, G) entry not marked as \"blocked\" when should"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	## Protocol tests.
+
+	# Check that (*, G) and (S, G) entries are added with the specified
+	# protocol.
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 \
+		filter_mode exclude source_list $src1 proto zebra
+
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "zebra"
+	check_err $? "(*, G) entry not added with \"zebra\" protocol"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "zebra"
+	check_err $? "(S, G) entry not marked added with \"zebra\" protocol"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	## Replace tests.
+
+	# Check that state can be modified.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge mdb replace dev br0 port $swp1 grp $grp permanent vid 10 \
+		filter_mode exclude source_list $src1
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "permanent"
+	check_err $? "(*, G) entry not marked as \"permanent\" after replace"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "permanent"
+	check_err $? "(S, G) entry not marked as \"permanent\" after replace"
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "temp"
+	check_err $? "(*, G) entry not marked as \"temp\" after replace"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "temp"
+	check_err $? "(S, G) entry not marked as \"temp\" after replace"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that filter mode can be modified.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode include source_list $src1
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "include"
+	check_err $? "(*, G) not marked with \"include\" filter mode after replace"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "blocked"
+	check_fail $? "(S, G) marked as \"blocked\" after replace"
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "exclude"
+	check_err $? "(*, G) not marked with \"exclude\" filter mode after replace"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "blocked"
+	check_err $? "(S, G) not marked as \"blocked\" after replace"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that sources can be added to and removed from the source list.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1,$src2,$src3
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 &> /dev/null
+	check_err $? "(S, G) entry for source $src1 not created after replace"
+	bridge -d mdb get dev br0 grp $grp src $src2 vid 10 &> /dev/null
+	check_err $? "(S, G) entry for source $src2 not created after replace"
+	bridge -d mdb get dev br0 grp $grp src $src3 vid 10 &> /dev/null
+	check_err $? "(S, G) entry for source $src3 not created after replace"
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1,$src3
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 &> /dev/null
+	check_err $? "(S, G) entry for source $src1 not created after second replace"
+	bridge -d mdb get dev br0 grp $grp src $src2 vid 10 &> /dev/null
+	check_fail $? "(S, G) entry for source $src2 created after second replace"
+	bridge -d mdb get dev br0 grp $grp src $src3 vid 10 &> /dev/null
+	check_err $? "(S, G) entry for source $src3 not created after second replace"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	# Check that protocol can be modified.
+	bridge mdb add dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1 proto zebra
+
+	bridge mdb replace dev br0 port $swp1 grp $grp temp vid 10 \
+		filter_mode exclude source_list $src1 proto bgp
+	bridge -d mdb get dev br0 grp $grp vid 10 | grep -q "bgp"
+	check_err $? "(*, G) protocol not changed to \"bgp\" after replace"
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep -q "bgp"
+	check_err $? "(S, G) protocol not changed to \"bgp\" after replace"
+
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	## Star exclude tests.
+
+	# Check star exclude functionality. When adding a new EXCLUDE (*, G),
+	# it needs to be also added to all (S, G) entries for proper
+	# replication.
+	bridge mdb add dev br0 port $swp2 grp $grp vid 10 \
+		filter_mode include source_list $src1
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10
+	bridge -d mdb get dev br0 grp $grp src $src1 vid 10 | grep "$swp1" | \
+		grep -q "added_by_star_ex"
+	check_err $? "\"added_by_star_ex\" entry not created after adding (*, G) entry"
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+	bridge mdb del dev br0 port $swp2 grp $grp src $src1 vid 10
+
+	## Error cases tests.
+
+	bridge mdb add dev br0 port $swp1 grp $invalid_grp vid 10 &> /dev/null
+	check_fail $? "Managed to add an entry with an invalid group"
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode include \
+		&> /dev/null
+	check_fail $? "Managed to add an INCLUDE entry with an empty source list"
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode include \
+		source_list $grp &> /dev/null
+	check_fail $? "Managed to add an entry with an invalid source in source list"
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 \
+		source_list $src &> /dev/null
+	check_fail $? "Managed to add an entry with a source list and no filter mode"
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode include \
+		source_list $src1
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode exclude \
+		source_list $src1 &> /dev/null
+	check_fail $? "Managed to replace an entry without using replace"
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	bridge mdb add dev br0 port $swp1 grp $grp src $src2 vid 10
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode include \
+		source_list $src1,$src2,$src3 &> /dev/null
+	check_fail $? "Managed to add a source that already has a forwarding entry"
+	bridge mdb del dev br0 port $swp1 grp $grp src $src2 vid 10
+
+	# Check maximum number of sources.
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode exclude \
+		source_list $(src_list_create $src_prefix $max_srcs)
+	num_srcs=$(bridge -d mdb show dev br0 vid 10 | grep "$grp" | \
+		grep "src" | wc -l)
+	[[ $num_srcs -eq $max_srcs ]]
+	check_err $? "Failed to configure maximum number of sources ($max_srcs)"
+	bridge mdb del dev br0 port $swp1 grp $grp vid 10
+
+	bridge mdb add dev br0 port $swp1 grp $grp vid 10 filter_mode exclude \
+		source_list $(src_list_create $src_prefix $((max_srcs + 1))) \
+		&> /dev/null
+	check_fail $? "Managed to exceed maximum number of sources ($max_srcs)"
+
+	log_test "$name (*, G) port group entries configuration tests"
+}
+
+cfg_test_port_ip_star_g()
+{
+	echo
+	log_info "# Port group entries configuration tests - (*, G)"
+
+	cfg_test_port_common "IPv4 (*, G)" "grp 239.1.1.1"
+	cfg_test_port_common "IPv6 (*, G)" "grp ff0e::1"
+	__cfg_test_port_ip_star_g "IPv4" "239.1.1.1" "224.0.0.1" "192.0.2."
+	__cfg_test_port_ip_star_g "IPv6" "ff0e::1" "ff02::1" "2001:db8:1::"
+}
+
+__cfg_test_port_ip_sg()
+{
+	local name=$1; shift
+	local grp=$1; shift
+	local src=$1; shift
+	local grp_key="grp $grp src $src"
+
+	RET=0
+
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "include"
+	check_err $? "Default filter mode is not \"include\""
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+
+	# Check that entries can be added as both permanent and temp and that
+	# group timer is set correctly.
+	bridge mdb add dev br0 port $swp1 $grp_key permanent vid 10
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "permanent"
+	check_err $? "Entry not added as \"permanent\" when should"
+	bridge -d -s mdb get dev br0 $grp_key vid 10 | grep -q " 0.00"
+	check_err $? "\"permanent\" entry has a pending group timer"
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+
+	bridge mdb add dev br0 port $swp1 $grp_key temp vid 10
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "temp"
+	check_err $? "Entry not added as \"temp\" when should"
+	bridge -d -s mdb get dev br0 $grp_key vid 10 | grep -q " 0.00"
+	check_fail $? "\"temp\" entry has an unpending group timer"
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+
+	# Check error cases.
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10 \
+		filter_mode include &> /dev/null
+	check_fail $? "Managed to add an entry with a filter mode"
+
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10 \
+		filter_mode include source_list $src &> /dev/null
+	check_fail $? "Managed to add an entry with a source list"
+
+	bridge mdb add dev br0 port $swp1 grp $grp src $grp vid 10 &> /dev/null
+	check_fail $? "Managed to add an entry with an invalid source"
+
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10 temp
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10 permanent &> /dev/null
+	check_fail $? "Managed to replace an entry without using replace"
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+
+	# Check that we can replace available attributes.
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10 proto 123
+	bridge mdb replace dev br0 port $swp1 $grp_key vid 10 proto 111
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "111"
+	check_err $? "Failed to replace protocol"
+
+	bridge mdb replace dev br0 port $swp1 $grp_key vid 10 permanent
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "permanent"
+	check_err $? "Entry not marked as \"permanent\" after replace"
+	bridge -d -s mdb get dev br0 $grp_key vid 10 | grep -q " 0.00"
+	check_err $? "Entry has a pending group timer after replace"
+
+	bridge mdb replace dev br0 port $swp1 $grp_key vid 10 temp
+	bridge -d mdb get dev br0 $grp_key vid 10 | grep -q "temp"
+	check_err $? "Entry not marked as \"temp\" after replace"
+	bridge -d -s mdb get dev br0 $grp_key vid 10 | grep -q " 0.00"
+	check_fail $? "Entry has an unpending group timer after replace"
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+
+	# Check star exclude functionality. When adding a (S, G), all matching
+	# (*, G) ports need to be added to it.
+	bridge mdb add dev br0 port $swp2 grp $grp vid 10
+	bridge mdb add dev br0 port $swp1 $grp_key vid 10
+	bridge mdb get dev br0 $grp_key vid 10 | grep $swp2 | \
+		grep -q "added_by_star_ex"
+	check_err $? "\"added_by_star_ex\" entry not created after adding (S, G) entry"
+	bridge mdb del dev br0 port $swp1 $grp_key vid 10
+	bridge mdb del dev br0 port $swp2 grp $grp vid 10
+
+	log_test "$name (S, G) port group entries configuration tests"
+}
+
+cfg_test_port_ip_sg()
+{
+	echo
+	log_info "# Port group entries configuration tests - (S, G)"
+
+	cfg_test_port_common "IPv4 (S, G)" "grp 239.1.1.1 src 192.0.2.1"
+	cfg_test_port_common "IPv6 (S, G)" "grp ff0e::1 src 2001:db8:1::1"
+	__cfg_test_port_ip_sg "IPv4" "239.1.1.1" "192.0.2.1"
+	__cfg_test_port_ip_sg "IPv6" "ff0e::1" "2001:db8:1::1"
+}
+
+cfg_test_port_ip()
+{
+	cfg_test_port_ip_star_g
+	cfg_test_port_ip_sg
+}
+
+__cfg_test_port_l2()
+{
+	local grp="01:02:03:04:05:06"
+
+	RET=0
+
+	bridge meb add dev br0 port $swp grp 00:01:02:03:04:05 \
+		permanent vid 10 &> /dev/null
+	check_fail $? "Managed to add an entry with unicast MAC"
+
+	bridge mdb add dev br0 port $swp grp $grp src 00:01:02:03:04:05 \
+		permanent vid 10 &> /dev/null
+	check_fail $? "Managed to add an entry with a source"
+
+	bridge mdb add dev br0 port $swp1 grp $grp permanent vid 10 \
+		filter_mode include &> /dev/null
+	check_fail $? "Managed to add an entry with a filter mode"
+
+	bridge mdb add dev br0 port $swp1 grp $grp permanent vid 10 \
+		source_list 00:01:02:03:04:05 &> /dev/null
+	check_fail $? "Managed to add an entry with a source list"
+
+	log_test "L2 (*, G) port group entries configuration tests"
+}
+
+cfg_test_port_l2()
+{
+	echo
+	log_info "# Port group entries configuration tests - L2"
+
+	cfg_test_port_common "L2 (*, G)" "grp 01:02:03:04:05:06"
+	__cfg_test_port_l2
+}
+
+# Check configuration of regular (port) entries of all types.
+cfg_test_port()
+{
+	cfg_test_port_ip
+	cfg_test_port_l2
+}
+
+ipv4_grps_get()
+{
+	local max_grps=$1; shift
+	local i
+
+	for i in $(seq 0 $((max_grps - 1))); do
+		echo "239.1.1.$i"
+	done
+}
+
+ipv6_grps_get()
+{
+	local max_grps=$1; shift
+	local i
+
+	for i in $(seq 0 $((max_grps - 1))); do
+		echo "ff0e::$(printf %x $i)"
+	done
+}
+
+l2_grps_get()
+{
+	local max_grps=$1; shift
+	local i
+
+	for i in $(seq 0 $((max_grps - 1))); do
+		echo "01:00:00:00:00:$(printf %02x $i)"
+	done
+}
+
+cfg_test_dump_common()
+{
+	local name=$1; shift
+	local fn=$1; shift
+	local max_bridges=2
+	local max_grps=256
+	local max_ports=32
+	local num_entries
+	local batch_file
+	local grp
+	local i j
+
+	RET=0
+
+	# Create net devices.
+	for i in $(seq 1 $max_bridges); do
+		ip link add name br-test${i} up type bridge vlan_filtering 1 \
+			mcast_snooping 1
+		for j in $(seq 1 $max_ports); do
+			ip link add name br-test${i}-du${j} up \
+				master br-test${i} type dummy
+		done
+	done
+
+	# Create batch file with MDB entries.
+	batch_file=$(mktemp)
+	for i in $(seq 1 $max_bridges); do
+		for j in $(seq 1 $max_ports); do
+			for grp in $($fn $max_grps); do
+				echo "mdb add dev br-test${i} \
+					port br-test${i}-du${j} grp $grp \
+					permanent vid 1" >> $batch_file
+			done
+		done
+	done
+
+	# Program the batch file and check for expected number of entries.
+	bridge -b $batch_file
+	for i in $(seq 1 $max_bridges); do
+		num_entries=$(bridge mdb show dev br-test${i} | \
+			grep "permanent" | wc -l)
+		[[ $num_entries -eq $((max_grps * max_ports)) ]]
+		check_err $? "Wrong number of entries in br-test${i}"
+	done
+
+	# Cleanup.
+	rm $batch_file
+	for i in $(seq 1 $max_bridges); do
+		ip link del dev br-test${i}
+		for j in $(seq $max_ports); do
+			ip link del dev br-test${i}-du${j}
+		done
+	done
+
+	log_test "$name large scale dump tests"
+}
+
+# Check large scale dump.
+cfg_test_dump()
+{
+	echo
+	log_info "# Large scale dump tests"
+
+	cfg_test_dump_common "IPv4" ipv4_grps_get
+	cfg_test_dump_common "IPv6" ipv6_grps_get
+	cfg_test_dump_common "L2" l2_grps_get
+}
+
+# Check flush functionality with different parameters.
+cfg_test_flush()
+{
+	local num_entries
+
+	# Add entries with different attributes and check that they are all
+	# flushed when the flush command is given with no parameters.
+
+	# Different port.
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 vid 10
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.2 vid 10
+
+	# Different VLAN ID.
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.3 vid 10
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.4 vid 20
+
+	# Different routing protocol.
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.5 vid 10 proto bgp
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.6 vid 10 proto zebra
+
+	# Different state.
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.7 vid 10 permanent
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.8 vid 10 temp
+
+	bridge mdb flush dev br0
+	num_entries=$(bridge mdb show dev br0 | wc -l)
+	[[ $num_entries -eq 0 ]]
+	check_err $? 0 "Not all entries flushed after flush all"
+
+	# Check that when flushing by port only entries programmed with the
+	# specified port are flushed and the rest are not.
+
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 vid 10
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 vid 10
+	bridge mdb add dev br0 port br0 grp 239.1.1.1 vid 10
+
+	bridge mdb flush dev br0 port $swp1
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp1"
+	check_fail $? "Entry not flushed by specified port"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp2"
+	check_err $? "Entry flushed by wrong port"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port br0"
+	check_err $? "Host entry flushed by wrong port"
+
+	bridge mdb flush dev br0 port br0
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port br0"
+	check_fail $? "Host entry not flushed by specified port"
+
+	bridge mdb flush dev br0
+
+	# Check that when flushing by VLAN ID only entries programmed with the
+	# specified VLAN ID are flushed and the rest are not.
+
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 vid 10
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 vid 10
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 vid 20
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 vid 20
+
+	bridge mdb flush dev br0 vid 10
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 &> /dev/null
+	check_fail $? "Entry not flushed by specified VLAN ID"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 20 &> /dev/null
+	check_err $? "Entry flushed by wrong VLAN ID"
+
+	bridge mdb flush dev br0
+
+	# Check that all permanent entries are flushed when "permanent" is
+	# specified and that temporary entries are not.
+
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 permanent vid 10
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 temp vid 10
+
+	bridge mdb flush dev br0 permanent
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp1"
+	check_fail $? "Entry not flushed by \"permanent\" state"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp2"
+	check_err $? "Entry flushed by wrong state (\"permanent\")"
+
+	bridge mdb flush dev br0
+
+	# Check that all temporary entries are flushed when "nopermanent" is
+	# specified and that permanent entries are not.
+
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 permanent vid 10
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 temp vid 10
+
+	bridge mdb flush dev br0 nopermanent
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp1"
+	check_err $? "Entry flushed by wrong state (\"nopermanent\")"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp2"
+	check_fail $? "Entry not flushed by \"nopermanent\" state"
+
+	bridge mdb flush dev br0
+
+	# Check that L2 host entries are not flushed when "nopermanent" is
+	# specified, but flushed when "permanent" is specified.
+
+	bridge mdb add dev br0 port br0 grp 01:02:03:04:05:06 permanent vid 10
+
+	bridge mdb flush dev br0 nopermanent
+
+	bridge mdb get dev br0 grp 01:02:03:04:05:06 vid 10 &> /dev/null
+	check_err $? "L2 host entry flushed by wrong state (\"nopermanent\")"
+
+	bridge mdb flush dev br0 permanent
+
+	bridge mdb get dev br0 grp 01:02:03:04:05:06 vid 10 &> /dev/null
+	check_fail $? "L2 host entry not flushed by \"permanent\" state"
+
+	bridge mdb flush dev br0
+
+	# Check that IPv4 host entries are not flushed when "permanent" is
+	# specified, but flushed when "nopermanent" is specified.
+
+	bridge mdb add dev br0 port br0 grp 239.1.1.1 temp vid 10
+
+	bridge mdb flush dev br0 permanent
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 &> /dev/null
+	check_err $? "IPv4 host entry flushed by wrong state (\"permanent\")"
+
+	bridge mdb flush dev br0 nopermanent
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 &> /dev/null
+	check_fail $? "IPv4 host entry not flushed by \"nopermanent\" state"
+
+	bridge mdb flush dev br0
+
+	# Check that IPv6 host entries are not flushed when "permanent" is
+	# specified, but flushed when "nopermanent" is specified.
+
+	bridge mdb add dev br0 port br0 grp ff0e::1 temp vid 10
+
+	bridge mdb flush dev br0 permanent
+
+	bridge mdb get dev br0 grp ff0e::1 vid 10 &> /dev/null
+	check_err $? "IPv6 host entry flushed by wrong state (\"permanent\")"
+
+	bridge mdb flush dev br0 nopermanent
+
+	bridge mdb get dev br0 grp ff0e::1 vid 10 &> /dev/null
+	check_fail $? "IPv6 host entry not flushed by \"nopermanent\" state"
+
+	bridge mdb flush dev br0
+
+	# Check that when flushing by routing protocol only entries programmed
+	# with the specified routing protocol are flushed and the rest are not.
+
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 vid 10 proto bgp
+	bridge mdb add dev br0 port $swp2 grp 239.1.1.1 vid 10 proto zebra
+	bridge mdb add dev br0 port br0 grp 239.1.1.1 vid 10
+
+	bridge mdb flush dev br0 proto bgp
+
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp1"
+	check_fail $? "Entry not flushed by specified routing protocol"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port $swp2"
+	check_err $? "Entry flushed by wrong routing protocol"
+	bridge mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q "port br0"
+	check_err $? "Host entry flushed by wrong routing protocol"
+
+	bridge mdb flush dev br0
+
+	# Test that an error is returned when trying to flush using unsupported
+	# parameters.
+
+	bridge mdb flush dev br0 src_vni 10 &> /dev/null
+	check_fail $? "Managed to flush by source VNI"
+
+	bridge mdb flush dev br0 dst 198.51.100.1 &> /dev/null
+	check_fail $? "Managed to flush by destination IP"
+
+	bridge mdb flush dev br0 dst_port 4789 &> /dev/null
+	check_fail $? "Managed to flush by UDP destination port"
+
+	bridge mdb flush dev br0 vni 10 &> /dev/null
+	check_fail $? "Managed to flush by destination VNI"
+
+	log_test "Flush tests"
+}
+
+cfg_test()
+{
+	cfg_test_host
+	cfg_test_port
+	cfg_test_dump
+	cfg_test_flush
+}
+
+__fwd_test_host_ip()
+{
+	local grp=$1; shift
+	local dmac=$1; shift
+	local src=$1; shift
+	local mode=$1; shift
+	local name
+	local eth_type
+
+	RET=0
+
+	if [[ $mode == "-4" ]]; then
+		name="IPv4"
+		eth_type="ipv4"
+	else
+		name="IPv6"
+		eth_type="ipv6"
+	fi
+
+	tc filter add dev br0 ingress protocol 802.1q pref 1 handle 1 flower \
+		vlan_ethtype $eth_type vlan_id 10 dst_ip $grp src_ip $src \
+		action drop
+
+	# Packet should only be flooded to multicast router ports when there is
+	# no matching MDB entry. The bridge is not configured as a multicast
+	# router port.
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $src -B $grp -t udp -q
+	tc_check_packets "dev br0 ingress" 1 0
+	check_err $? "Packet locally received after flood"
+
+	# Install a regular port group entry and expect the packet to not be
+	# locally received.
+	bridge mdb add dev br0 port $swp2 grp $grp temp vid 10
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $src -B $grp -t udp -q
+	tc_check_packets "dev br0 ingress" 1 0
+	check_err $? "Packet locally received after installing a regular entry"
+
+	# Add a host entry and expect the packet to be locally received.
+	bridge mdb add dev br0 port br0 grp $grp temp vid 10
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $src -B $grp -t udp -q
+	tc_check_packets "dev br0 ingress" 1 1
+	check_err $? "Packet not locally received after adding a host entry"
+
+	# Remove the host entry and expect the packet to not be locally
+	# received.
+	bridge mdb del dev br0 port br0 grp $grp vid 10
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $src -B $grp -t udp -q
+	tc_check_packets "dev br0 ingress" 1 1
+	check_err $? "Packet locally received after removing a host entry"
+
+	bridge mdb del dev br0 port $swp2 grp $grp vid 10
+
+	tc filter del dev br0 ingress protocol 802.1q pref 1 handle 1 flower
+
+	log_test "$name host entries forwarding tests"
+}
+
+fwd_test_host_ip()
+{
+	__fwd_test_host_ip "239.1.1.1" "01:00:5e:01:01:01" "192.0.2.1" "-4"
+	__fwd_test_host_ip "ff0e::1" "33:33:00:00:00:01" "2001:db8:1::1" "-6"
+}
+
+fwd_test_host_l2()
+{
+	local dmac=01:02:03:04:05:06
+
+	RET=0
+
+	tc filter add dev br0 ingress protocol all pref 1 handle 1 flower \
+		dst_mac $dmac action drop
+
+	# Packet should be flooded and locally received when there is no
+	# matching MDB entry.
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev br0 ingress" 1 1
+	check_err $? "Packet not locally received after flood"
+
+	# Install a regular port group entry and expect the packet to not be
+	# locally received.
+	bridge mdb add dev br0 port $swp2 grp $dmac permanent vid 10
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev br0 ingress" 1 1
+	check_err $? "Packet locally received after installing a regular entry"
+
+	# Add a host entry and expect the packet to be locally received.
+	bridge mdb add dev br0 port br0 grp $dmac permanent vid 10
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev br0 ingress" 1 2
+	check_err $? "Packet not locally received after adding a host entry"
+
+	# Remove the host entry and expect the packet to not be locally
+	# received.
+	bridge mdb del dev br0 port br0 grp $dmac permanent vid 10
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev br0 ingress" 1 2
+	check_err $? "Packet locally received after removing a host entry"
+
+	bridge mdb del dev br0 port $swp2 grp $dmac permanent vid 10
+
+	tc filter del dev br0 ingress protocol all pref 1 handle 1 flower
+
+	log_test "L2 host entries forwarding tests"
+}
+
+fwd_test_host()
+{
+	# Disable multicast router on the bridge to ensure that packets are
+	# only locally received when a matching host entry is present.
+	ip link set dev br0 type bridge mcast_router 0
+
+	fwd_test_host_ip
+	fwd_test_host_l2
+
+	ip link set dev br0 type bridge mcast_router 1
+}
+
+__fwd_test_port_ip()
+{
+	local grp=$1; shift
+	local dmac=$1; shift
+	local valid_src=$1; shift
+	local invalid_src=$1; shift
+	local mode=$1; shift
+	local filter_mode=$1; shift
+	local name
+	local eth_type
+	local src_list
+
+	RET=0
+
+	if [[ $mode == "-4" ]]; then
+		name="IPv4"
+		eth_type="ipv4"
+	else
+		name="IPv6"
+		eth_type="ipv6"
+	fi
+
+	# The valid source is the one we expect to get packets from after
+	# adding the entry.
+	if [[ $filter_mode == "include" ]]; then
+		src_list=$valid_src
+	else
+		src_list=$invalid_src
+	fi
+
+	tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 1 flower \
+		vlan_ethtype $eth_type vlan_id 10 dst_ip $grp \
+		src_ip $valid_src action drop
+	tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 2 flower \
+		vlan_ethtype $eth_type vlan_id 10 dst_ip $grp \
+		src_ip $invalid_src action drop
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $valid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 1 0
+	check_err $? "Packet from valid source received on H2 before adding entry"
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $invalid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 2 0
+	check_err $? "Packet from invalid source received on H2 before adding entry"
+
+	bridge mdb add dev br0 port $swp2 grp $grp vid 10 \
+		filter_mode $filter_mode source_list $src_list
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $valid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 1 1
+	check_err $? "Packet from valid source not received on H2 after adding entry"
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $invalid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 2 0
+	check_err $? "Packet from invalid source received on H2 after adding entry"
+
+	bridge mdb replace dev br0 port $swp2 grp $grp vid 10 \
+		filter_mode exclude
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $valid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 1 2
+	check_err $? "Packet from valid source not received on H2 after allowing all sources"
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $invalid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 2 1
+	check_err $? "Packet from invalid source not received on H2 after allowing all sources"
+
+	bridge mdb del dev br0 port $swp2 grp $grp vid 10
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $valid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 1 2
+	check_err $? "Packet from valid source received on H2 after deleting entry"
+
+	$MZ $mode $h1.10 -a own -b $dmac -c 1 -p 128 -A $invalid_src -B $grp -t udp -q
+	tc_check_packets "dev $h2 ingress" 2 1
+	check_err $? "Packet from invalid source received on H2 after deleting entry"
+
+	tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 2 flower
+	tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 1 flower
+
+	log_test "$name port group \"$filter_mode\" entries forwarding tests"
+}
+
+fwd_test_port_ip()
+{
+	__fwd_test_port_ip "239.1.1.1" "01:00:5e:01:01:01" "192.0.2.1" "192.0.2.2" "-4" "exclude"
+	__fwd_test_port_ip "ff0e::1" "33:33:00:00:00:01" "2001:db8:1::1" "2001:db8:1::2" "-6" \
+		"exclude"
+	__fwd_test_port_ip "239.1.1.1" "01:00:5e:01:01:01" "192.0.2.1" "192.0.2.2" "-4" "include"
+	__fwd_test_port_ip "ff0e::1" "33:33:00:00:00:01" "2001:db8:1::1" "2001:db8:1::2" "-6" \
+		"include"
+}
+
+fwd_test_port_l2()
+{
+	local dmac=01:02:03:04:05:06
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol all pref 1 handle 1 flower \
+		dst_mac $dmac action drop
+
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev $h2 ingress" 1 0
+	check_err $? "Packet received on H2 before adding entry"
+
+	bridge mdb add dev br0 port $swp2 grp $dmac permanent vid 10
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev $h2 ingress" 1 1
+	check_err $? "Packet not received on H2 after adding entry"
+
+	bridge mdb del dev br0 port $swp2 grp $dmac permanent vid 10
+	$MZ $h1.10 -c 1 -p 128 -a own -b $dmac -q
+	tc_check_packets "dev $h2 ingress" 1 1
+	check_err $? "Packet received on H2 after deleting entry"
+
+	tc filter del dev $h2 ingress protocol all pref 1 handle 1 flower
+
+	log_test "L2 port entries forwarding tests"
+}
+
+fwd_test_port()
+{
+	# Disable multicast flooding to ensure that packets are only forwarded
+	# out of a port when a matching port group entry is present.
+	bridge link set dev $swp2 mcast_flood off
+
+	fwd_test_port_ip
+	fwd_test_port_l2
+
+	bridge link set dev $swp2 mcast_flood on
+}
+
+fwd_test()
+{
+	echo
+	log_info "# Forwarding tests"
+
+	# Set the Max Response Delay to 100 centiseconds (1 second) so that the
+	# bridge will start forwarding according to its MDB soon after a
+	# multicast querier is enabled.
+	ip link set dev br0 type bridge mcast_query_response_interval 100
+
+	# Forwarding according to MDB entries only takes place when the bridge
+	# detects that there is a valid querier in the network. Set the bridge
+	# as the querier and assign it a valid IPv6 link-local address to be
+	# used as the source address for MLD queries.
+	ip -6 address add fe80::1/64 nodad dev br0
+	ip link set dev br0 type bridge mcast_querier 1
+	sleep 10
+
+	fwd_test_host
+	fwd_test_port
+
+	ip link set dev br0 type bridge mcast_querier 0
+	ip -6 address del fe80::1/64 dev br0
+	ip link set dev br0 type bridge mcast_query_response_interval 1000
+}
+
+ctrl_igmpv3_is_in_test()
+{
+	RET=0
+
+	# Add a permanent entry and check that it is not affected by the
+	# received IGMP packet.
+	bridge mdb add dev br0 port $swp1 grp 239.1.1.1 permanent vid 10 \
+		filter_mode include source_list 192.0.2.1
+
+	# IS_IN ( 192.0.2.2 )
+	$MZ $h1.10 -c 1 -a own -b 01:00:5e:01:01:01 -A 192.0.2.1 -B 239.1.1.1 \
+		-t ip proto=2,p=$(igmpv3_is_in_get 239.1.1.1 192.0.2.2) -q
+
+	bridge mdb get dev br0 grp 239.1.1.1 src 192.0.2.2 vid 10 &> /dev/null
+	check_fail $? "Permanent entry affected by IGMP packet"
+
+	# Replace the permanent entry with a temporary one and check that after
+	# processing the IGMP packet, a new source is added to the list along
+	# with a new forwarding entry.
+	bridge mdb replace dev br0 port $swp1 grp 239.1.1.1 temp vid 10 \
+		filter_mode include source_list 192.0.2.1
+
+	# IS_IN ( 192.0.2.2 )
+	$MZ $h1.10 -a own -b 01:00:5e:01:01:01 -c 1 -A 192.0.2.1 -B 239.1.1.1 \
+		-t ip proto=2,p=$(igmpv3_is_in_get 239.1.1.1 192.0.2.2) -q
+
+	bridge -d mdb get dev br0 grp 239.1.1.1 vid 10 | grep -q 192.0.2.2
+	check_err $? "Source not add to source list"
+
+	bridge mdb get dev br0 grp 239.1.1.1 src 192.0.2.2 vid 10 &> /dev/null
+	check_err $? "(S, G) entry not created for new source"
+
+	bridge mdb del dev br0 port $swp1 grp 239.1.1.1 vid 10
+
+	log_test "IGMPv3 MODE_IS_INCLUDE tests"
+}
+
+ctrl_mldv2_is_in_test()
+{
+	RET=0
+
+	# Add a permanent entry and check that it is not affected by the
+	# received MLD packet.
+	bridge mdb add dev br0 port $swp1 grp ff0e::1 permanent vid 10 \
+		filter_mode include source_list 2001:db8:1::1
+
+	# IS_IN ( 2001:db8:1::2 )
+	local p=$(mldv2_is_in_get fe80::1 ff0e::1 2001:db8:1::2)
+	$MZ -6 $h1.10 -a own -b 33:33:00:00:00:01 -c 1 -A fe80::1 -B ff0e::1 \
+		-t ip hop=1,next=0,p="$p" -q
+
+	bridge mdb get dev br0 grp ff0e::1 src 2001:db8:1::2 vid 10 &> /dev/null
+	check_fail $? "Permanent entry affected by MLD packet"
+
+	# Replace the permanent entry with a temporary one and check that after
+	# processing the MLD packet, a new source is added to the list along
+	# with a new forwarding entry.
+	bridge mdb replace dev br0 port $swp1 grp ff0e::1 temp vid 10 \
+		filter_mode include source_list 2001:db8:1::1
+
+	# IS_IN ( 2001:db8:1::2 )
+	$MZ -6 $h1.10 -a own -b 33:33:00:00:00:01 -c 1 -A fe80::1 -B ff0e::1 \
+		-t ip hop=1,next=0,p="$p" -q
+
+	bridge -d mdb get dev br0 grp ff0e::1 vid 10 | grep -q 2001:db8:1::2
+	check_err $? "Source not add to source list"
+
+	bridge mdb get dev br0 grp ff0e::1 src 2001:db8:1::2 vid 10 &> /dev/null
+	check_err $? "(S, G) entry not created for new source"
+
+	bridge mdb del dev br0 port $swp1 grp ff0e::1 vid 10
+
+	log_test "MLDv2 MODE_IS_INCLUDE tests"
+}
+
+ctrl_test()
+{
+	echo
+	log_info "# Control packets tests"
+
+	ctrl_igmpv3_is_in_test
+	ctrl_mldv2_is_in_test
+}
+
+check_group()
+{
+	local group=$1; shift
+	local vid=$1; shift
+	local should_fail=$1; shift
+	local when=$1; shift
+	local -a vidkws
+
+	if ((vid)); then
+		vidkws=(vid "$vid")
+	fi
+
+	bridge mdb get dev br0 grp "$group" "${vidkws[@]}" 2>/dev/null |
+		grep -q "port $swp1"
+	check_err_fail "$should_fail" $? "$group seen $when snooping disable:"
+}
+
+__disable_test()
+{
+	local vid=$1; shift
+	local what=$1; shift
+	local -a vidkws
+
+	if ((vid)); then
+		vidkws=(vid "$vid")
+	fi
+
+	RET=0
+
+	bridge mdb add dev br0 port "$swp1" grp ff0e::1 permanent \
+		"${vidkws[@]}" filter_mode include source_list 2001:db8:1::1
+	bridge mdb add dev br0 port "$swp1" grp ff0e::2 permanent \
+		"${vidkws[@]}" filter_mode exclude
+
+	bridge mdb add dev br0 port "$swp1" grp ff0e::3 \
+		"${vidkws[@]}" filter_mode include source_list 2001:db8:1::2
+	bridge mdb add dev br0 port "$swp1" grp ff0e::4 \
+		"${vidkws[@]}" filter_mode exclude
+
+	bridge mdb add dev br0 port "$swp1" grp 239.1.1.1 permanent \
+		"${vidkws[@]}" filter_mode include source_list 192.0.2.1
+	bridge mdb add dev br0 port "$swp1" grp 239.1.1.2 permanent \
+		"${vidkws[@]}" filter_mode exclude
+
+	bridge mdb add dev br0 port "$swp1" grp 239.1.1.3 \
+		"${vidkws[@]}" filter_mode include source_list 192.0.2.2
+	bridge mdb add dev br0 port "$swp1" grp 239.1.1.4 \
+		"${vidkws[@]}" filter_mode exclude
+
+	check_group ff0e::1 "$vid" 0 "before"
+	check_group ff0e::2 "$vid" 0 "before"
+	check_group ff0e::3 "$vid" 0 "before"
+	check_group ff0e::4 "$vid" 0 "before"
+
+	check_group 239.1.1.1 "$vid" 0 "before"
+	check_group 239.1.1.2 "$vid" 0 "before"
+	check_group 239.1.1.3 "$vid" 0 "before"
+	check_group 239.1.1.4 "$vid" 0 "before"
+
+	ip link set dev br0 type bridge mcast_snooping 0
+
+	check_group ff0e::1 "$vid" 0 "after"
+	check_group ff0e::2 "$vid" 0 "after"
+	check_group ff0e::3 "$vid" 1 "after"
+	check_group ff0e::4 "$vid" 1 "after"
+
+	check_group 239.1.1.1 "$vid" 0 "after"
+	check_group 239.1.1.2 "$vid" 0 "after"
+	check_group 239.1.1.3 "$vid" 1 "after"
+	check_group 239.1.1.4 "$vid" 1 "after"
+
+	log_test "$what: Flush after disable"
+
+	ip link set dev br0 type bridge mcast_snooping 1
+	sleep 10
+}
+
+disable_test()
+{
+	__disable_test 10 802.1q
+
+	switch_destroy
+	switch_create 0
+	setup_wait
+
+	__disable_test 0 802.1d
+
+	switch_destroy
+	switch_create 1
+	setup_wait
+}
+
+if ! bridge mdb help 2>&1 | grep -q "flush"; then
+	echo "SKIP: iproute2 too old, missing bridge mdb flush support"
+	exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb_host.sh b/tools/testing/selftests/net/forwarding/bridge_mdb_host.sh
new file mode 100755
index 000000000000..b1ba6876dd86
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb_host.sh
@@ -0,0 +1,103 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Verify that adding host mdb entries work as intended for all types of
+# multicast filters: ipv4, ipv6, and mac
+
+ALL_TESTS="mdb_add_del_test"
+NUM_NETIFS=2
+
+TEST_GROUP_IP4="225.1.2.3"
+TEST_GROUP_IP6="ff02::42"
+TEST_GROUP_MAC="01:00:01:c0:ff:ee"
+
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+switch_create()
+{
+	# Enable multicast filtering
+	ip link add dev br0 type bridge mcast_snooping 1
+
+	ip link set dev $swp1 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp1 down
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+do_mdb_add_del()
+{
+	local group=$1
+	local flag=$2
+
+	RET=0
+	bridge mdb add dev br0 port br0 grp $group $flag 2>/dev/null
+	check_err $? "Failed adding $group to br0, port br0"
+
+	if [ -z "$flag" ]; then
+	    flag="temp"
+	fi
+
+	bridge mdb show dev br0 | grep $group | grep -q $flag 2>/dev/null
+	check_err $? "$group not added with $flag flag"
+
+	bridge mdb del dev br0 port br0 grp $group 2>/dev/null
+	check_err $? "Failed deleting $group from br0, port br0"
+
+	bridge mdb show dev br0 | grep -q $group >/dev/null
+	check_err_fail 1 $? "$group still in mdb after delete"
+
+	log_test "MDB add/del group $group to bridge port br0"
+}
+
+mdb_add_del_test()
+{
+	do_mdb_add_del $TEST_GROUP_MAC permanent
+	do_mdb_add_del $TEST_GROUP_IP4
+	do_mdb_add_del $TEST_GROUP_IP6
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh b/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh
new file mode 100755
index 000000000000..3da9d93ab36f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb_max.sh
@@ -0,0 +1,1347 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# | + $h1.10              |                          | + $h2.10               |
+# | | 192.0.2.1/28        |                          | | 192.0.2.2/28         |
+# | | 2001:db8:1::1/64    |                          | | 2001:db8:1::2/64     |
+# | |                     |                          | |                      |
+# | |  + $h1.20           |                          | |  + $h2.20            |
+# | \  | 198.51.100.1/24  |                          | \  | 198.51.100.2/24   |
+# |  \ | 2001:db8:2::1/64 |                          |  \ | 2001:db8:2::2/64  |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR0 (802.1q)             + $swp2           | |
+# | |     vid 10                                             vid 10         | |
+# | |     vid 20                                             vid 20         | |
+# | |                                                                       | |
+# | +-----------------------------------------------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_8021d
+	test_8021q
+	test_8021qvs
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create $h1 20 v$h1 198.51.100.1/24 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 10 v$h2 192.0.2.2/28
+	vlan_create $h2 20 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	simple_if_fini $h2
+}
+
+switch_create_8021d()
+{
+	log_info "802.1d tests"
+
+	ip link add name br0 type bridge vlan_filtering 0 \
+		mcast_snooping 1 \
+		mcast_igmp_version 3 mcast_mld_version 2
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp1 up
+	bridge link set dev $swp1 fastleave on
+
+	ip link set dev $swp2 master br0
+	ip link set dev $swp2 up
+}
+
+switch_create_8021q()
+{
+	local br_flags=$1; shift
+
+	log_info "802.1q $br_flags${br_flags:+ }tests"
+
+	ip link add name br0 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 1 $br_flags \
+		mcast_igmp_version 3 mcast_mld_version 2
+	bridge vlan add vid 10 dev br0 self
+	bridge vlan add vid 20 dev br0 self
+	ip link set dev br0 up
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp1 up
+	bridge link set dev $swp1 fastleave on
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan add vid 20 dev $swp1
+
+	ip link set dev $swp2 master br0
+	ip link set dev $swp2 up
+	bridge vlan add vid 10 dev $swp2
+	bridge vlan add vid 20 dev $swp2
+}
+
+switch_create_8021qvs()
+{
+	switch_create_8021q "mcast_vlan_snooping 1"
+	bridge vlan global set dev br0 vid 10 mcast_igmp_version 3
+	bridge vlan global set dev br0 vid 10 mcast_mld_version 2
+	bridge vlan global set dev br0 vid 20 mcast_igmp_version 3
+	bridge vlan global set dev br0 vid 20 mcast_mld_version 2
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev br0 down
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy 2>/dev/null
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+cfg_src_list()
+{
+	local IPs=("$@")
+	local IPstr=$(echo ${IPs[@]} | tr '[:space:]' , | sed 's/,$//')
+
+	echo ${IPstr:+source_list }${IPstr}
+}
+
+cfg_group_op()
+{
+	local op=$1; shift
+	local locus=$1; shift
+	local GRP=$1; shift
+	local state=$1; shift
+	local IPs=("$@")
+
+	local source_list=$(cfg_src_list ${IPs[@]})
+
+	# Everything besides `bridge mdb' uses the "dev X vid Y" syntax,
+	# so we use it here as well and convert.
+	local br_locus=$(echo "$locus" | sed 's/^dev /port /')
+
+	bridge mdb $op dev br0 $br_locus grp $GRP $state \
+	       filter_mode include $source_list
+}
+
+cfg4_entries_op()
+{
+	local op=$1; shift
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local GRP=239.1.1.${grp}
+	local IPs=$(seq -f 192.0.2.%g 1 $((n - 1)))
+	cfg_group_op "$op" "$locus" "$GRP" "$state" ${IPs[@]}
+}
+
+cfg4_entries_add()
+{
+	cfg4_entries_op add "$@"
+}
+
+cfg4_entries_del()
+{
+	cfg4_entries_op del "$@"
+}
+
+cfg6_entries_op()
+{
+	local op=$1; shift
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local GRP=ff0e::${grp}
+	local IPs=$(printf "2001:db8:1::%x\n" $(seq 1 $((n - 1))))
+	cfg_group_op "$op" "$locus" "$GRP" "$state" ${IPs[@]}
+}
+
+cfg6_entries_add()
+{
+	cfg6_entries_op add "$@"
+}
+
+cfg6_entries_del()
+{
+	cfg6_entries_op del "$@"
+}
+
+locus_dev_peer()
+{
+	local dev_kw=$1; shift
+	local dev=$1; shift
+	local vid_kw=$1; shift
+	local vid=$1; shift
+
+	echo "$h1.${vid:-10}"
+}
+
+locus_dev()
+{
+	local dev_kw=$1; shift
+	local dev=$1; shift
+
+	echo $dev
+}
+
+ctl4_entries_add()
+{
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local IPs=$(seq -f 192.0.2.%g 1 $((n - 1)))
+	local peer=$(locus_dev_peer $locus)
+	local GRP=239.1.1.${grp}
+	local dmac=01:00:5e:01:01:$(printf "%02x" $grp)
+	$MZ $peer -a own -b $dmac -c 1 -A 192.0.2.1 -B $GRP \
+		-t ip proto=2,p=$(igmpv3_is_in_get $GRP $IPs) -q
+	sleep 1
+
+	local nn=$(bridge mdb show dev br0 | grep $GRP | wc -l)
+	if ((nn != n)); then
+		echo mcast_max_groups > /dev/stderr
+		false
+	fi
+}
+
+ctl4_entries_del()
+{
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local peer=$(locus_dev_peer $locus)
+	local GRP=239.1.1.${grp}
+	local dmac=01:00:5e:00:00:02
+	$MZ $peer -a own -b $dmac -c 1 -A 192.0.2.1 -B 224.0.0.2 \
+		-t ip proto=2,p=$(igmpv2_leave_get $GRP) -q
+	sleep 1
+	! bridge mdb show dev br0 | grep -q $GRP
+}
+
+ctl6_entries_add()
+{
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local IPs=$(printf "2001:db8:1::%x\n" $(seq 1 $((n - 1))))
+	local peer=$(locus_dev_peer $locus)
+	local SIP=fe80::1
+	local GRP=ff0e::${grp}
+	local dmac=33:33:00:00:00:$(printf "%02x" $grp)
+	local p=$(mldv2_is_in_get $SIP $GRP $IPs)
+	$MZ -6 $peer -a own -b $dmac -c 1 -A $SIP -B $GRP \
+		-t ip hop=1,next=0,p="$p" -q
+	sleep 1
+
+	local nn=$(bridge mdb show dev br0 | grep $GRP | wc -l)
+	if ((nn != n)); then
+		echo mcast_max_groups > /dev/stderr
+		false
+	fi
+}
+
+ctl6_entries_del()
+{
+	local locus=$1; shift
+	local state=$1; shift
+	local n=$1; shift
+	local grp=${1:-1}; shift
+
+	local peer=$(locus_dev_peer $locus)
+	local SIP=fe80::1
+	local GRP=ff0e::${grp}
+	local dmac=33:33:00:00:00:$(printf "%02x" $grp)
+	local p=$(mldv1_done_get $SIP $GRP)
+	$MZ -6 $peer -a own -b $dmac -c 1 -A $SIP -B $GRP \
+		-t ip hop=1,next=0,p="$p" -q
+	sleep 1
+	! bridge mdb show dev br0 | grep -q $GRP
+}
+
+bridge_maxgroups_errmsg_check_cfg()
+{
+	local msg=$1; shift
+	local needle=$1; shift
+
+	echo "$msg" | grep -q mcast_max_groups
+	check_err $? "Adding MDB entries failed for the wrong reason: $msg"
+}
+
+bridge_maxgroups_errmsg_check_cfg4()
+{
+	bridge_maxgroups_errmsg_check_cfg "$@"
+}
+
+bridge_maxgroups_errmsg_check_cfg6()
+{
+	bridge_maxgroups_errmsg_check_cfg "$@"
+}
+
+bridge_maxgroups_errmsg_check_ctl4()
+{
+	:
+}
+
+bridge_maxgroups_errmsg_check_ctl6()
+{
+	:
+}
+
+bridge_port_ngroups_get()
+{
+	local locus=$1; shift
+
+	bridge -j -d link show $locus |
+	    jq '.[].mcast_n_groups'
+}
+
+bridge_port_maxgroups_get()
+{
+	local locus=$1; shift
+
+	bridge -j -d link show $locus |
+	    jq '.[].mcast_max_groups'
+}
+
+bridge_port_maxgroups_set()
+{
+	local locus=$1; shift
+	local max=$1; shift
+
+	bridge link set dev $(locus_dev $locus) mcast_max_groups $max
+}
+
+bridge_port_vlan_ngroups_get()
+{
+	local locus=$1; shift
+
+	bridge -j -d vlan show $locus |
+	    jq '.[].vlans[].mcast_n_groups'
+}
+
+bridge_port_vlan_maxgroups_get()
+{
+	local locus=$1; shift
+
+	bridge -j -d vlan show $locus |
+	    jq '.[].vlans[].mcast_max_groups'
+}
+
+bridge_port_vlan_maxgroups_set()
+{
+	local locus=$1; shift
+	local max=$1; shift
+
+	bridge vlan set $locus mcast_max_groups $max
+}
+
+test_ngroups_reporting()
+{
+	local CFG=$1; shift
+	local context=$1; shift
+	local locus=$1; shift
+
+	RET=0
+
+	local n0=$(bridge_${context}_ngroups_get "$locus")
+	${CFG}_entries_add "$locus" temp 5
+	check_err $? "Couldn't add MDB entries"
+	local n1=$(bridge_${context}_ngroups_get "$locus")
+
+	((n1 == n0 + 5))
+	check_err $? "Number of groups was $n0, now is $n1, but $((n0 + 5)) expected"
+
+	${CFG}_entries_del "$locus" temp 5
+	check_err $? "Couldn't delete MDB entries"
+	local n2=$(bridge_${context}_ngroups_get "$locus")
+
+	((n2 == n0))
+	check_err $? "Number of groups was $n0, now is $n2, but should be back to $n0"
+
+	log_test "$CFG: $context: ngroups reporting"
+}
+
+test_8021d_ngroups_reporting_cfg4()
+{
+	test_ngroups_reporting cfg4 port "dev $swp1"
+}
+
+test_8021d_ngroups_reporting_ctl4()
+{
+	test_ngroups_reporting ctl4 port "dev $swp1"
+}
+
+test_8021d_ngroups_reporting_cfg6()
+{
+	test_ngroups_reporting cfg6 port "dev $swp1"
+}
+
+test_8021d_ngroups_reporting_ctl6()
+{
+	test_ngroups_reporting ctl6 port "dev $swp1"
+}
+
+test_8021q_ngroups_reporting_cfg4()
+{
+	test_ngroups_reporting cfg4 port "dev $swp1 vid 10"
+}
+
+test_8021q_ngroups_reporting_ctl4()
+{
+	test_ngroups_reporting ctl4 port "dev $swp1 vid 10"
+}
+
+test_8021q_ngroups_reporting_cfg6()
+{
+	test_ngroups_reporting cfg6 port "dev $swp1 vid 10"
+}
+
+test_8021q_ngroups_reporting_ctl6()
+{
+	test_ngroups_reporting ctl6 port "dev $swp1 vid 10"
+}
+
+test_8021qvs_ngroups_reporting_cfg4()
+{
+	test_ngroups_reporting cfg4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_ngroups_reporting_ctl4()
+{
+	test_ngroups_reporting ctl4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_ngroups_reporting_cfg6()
+{
+	test_ngroups_reporting cfg6 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_ngroups_reporting_ctl6()
+{
+	test_ngroups_reporting ctl6 port_vlan "dev $swp1 vid 10"
+}
+
+test_ngroups_cross_vlan()
+{
+	local CFG=$1; shift
+
+	local locus1="dev $swp1 vid 10"
+	local locus2="dev $swp1 vid 20"
+
+	RET=0
+
+	local n10=$(bridge_port_vlan_ngroups_get "$locus1")
+	local n20=$(bridge_port_vlan_ngroups_get "$locus2")
+	${CFG}_entries_add "$locus1" temp 5 111
+	check_err $? "Couldn't add MDB entries to VLAN 10"
+	local n11=$(bridge_port_vlan_ngroups_get "$locus1")
+	local n21=$(bridge_port_vlan_ngroups_get "$locus2")
+
+	((n11 == n10 + 5))
+	check_err $? "Number of groups at VLAN 10 was $n10, now is $n11, but 5 entries added on VLAN 10, $((n10 + 5)) expected"
+
+	((n21 == n20))
+	check_err $? "Number of groups at VLAN 20 was $n20, now is $n21, but no change expected on VLAN 20"
+
+	${CFG}_entries_add "$locus2" temp 5 112
+	check_err $? "Couldn't add MDB entries to VLAN 20"
+	local n12=$(bridge_port_vlan_ngroups_get "$locus1")
+	local n22=$(bridge_port_vlan_ngroups_get "$locus2")
+
+	((n12 == n11))
+	check_err $? "Number of groups at VLAN 10 was $n11, now is $n12, but no change expected on VLAN 10"
+
+	((n22 == n21 + 5))
+	check_err $? "Number of groups at VLAN 20 was $n21, now is $n22, but 5 entries added on VLAN 20, $((n21 + 5)) expected"
+
+	${CFG}_entries_del "$locus1" temp 5 111
+	check_err $? "Couldn't delete MDB entries from VLAN 10"
+	${CFG}_entries_del "$locus2" temp 5 112
+	check_err $? "Couldn't delete MDB entries from VLAN 20"
+	local n13=$(bridge_port_vlan_ngroups_get "$locus1")
+	local n23=$(bridge_port_vlan_ngroups_get "$locus2")
+
+	((n13 == n10))
+	check_err $? "Number of groups at VLAN 10 was $n10, now is $n13, but should be back to $n10"
+
+	((n23 == n20))
+	check_err $? "Number of groups at VLAN 20 was $n20, now is $n23, but should be back to $n20"
+
+	log_test "$CFG: port_vlan: isolation of port and per-VLAN ngroups"
+}
+
+test_8021qvs_ngroups_cross_vlan_cfg4()
+{
+	test_ngroups_cross_vlan cfg4
+}
+
+test_8021qvs_ngroups_cross_vlan_ctl4()
+{
+	test_ngroups_cross_vlan ctl4
+}
+
+test_8021qvs_ngroups_cross_vlan_cfg6()
+{
+	test_ngroups_cross_vlan cfg6
+}
+
+test_8021qvs_ngroups_cross_vlan_ctl6()
+{
+	test_ngroups_cross_vlan ctl6
+}
+
+test_maxgroups_zero()
+{
+	local CFG=$1; shift
+	local context=$1; shift
+	local locus=$1; shift
+
+	RET=0
+	local max
+
+	max=$(bridge_${context}_maxgroups_get "$locus")
+	((max == 0))
+	check_err $? "Max groups on $locus should be 0, but $max reported"
+
+	bridge_${context}_maxgroups_set "$locus" 100
+	check_err $? "Failed to set max to 100"
+	max=$(bridge_${context}_maxgroups_get "$locus")
+	((max == 100))
+	check_err $? "Max groups expected to be 100, but $max reported"
+
+	bridge_${context}_maxgroups_set "$locus" 0
+	check_err $? "Couldn't set maximum to 0"
+
+	# Test that setting 0 explicitly still serves as infinity.
+	${CFG}_entries_add "$locus" temp 5
+	check_err $? "Adding 5 MDB entries failed but should have passed"
+	${CFG}_entries_del "$locus" temp 5
+	check_err $? "Couldn't delete MDB entries"
+
+	log_test "$CFG: $context maxgroups: reporting and treatment of 0"
+}
+
+test_8021d_maxgroups_zero_cfg4()
+{
+	test_maxgroups_zero cfg4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_zero_ctl4()
+{
+	test_maxgroups_zero ctl4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_zero_cfg6()
+{
+	test_maxgroups_zero cfg6 port "dev $swp1"
+}
+
+test_8021d_maxgroups_zero_ctl6()
+{
+	test_maxgroups_zero ctl6 port "dev $swp1"
+}
+
+test_8021q_maxgroups_zero_cfg4()
+{
+	test_maxgroups_zero cfg4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_zero_ctl4()
+{
+	test_maxgroups_zero ctl4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_zero_cfg6()
+{
+	test_maxgroups_zero cfg6 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_zero_ctl6()
+{
+	test_maxgroups_zero ctl6 port "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_zero_cfg4()
+{
+	test_maxgroups_zero cfg4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_zero_ctl4()
+{
+	test_maxgroups_zero ctl4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_zero_cfg6()
+{
+	test_maxgroups_zero cfg6 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_zero_ctl6()
+{
+	test_maxgroups_zero ctl6 port_vlan "dev $swp1 vid 10"
+}
+
+test_maxgroups_zero_cross_vlan()
+{
+	local CFG=$1; shift
+
+	local locus0="dev $swp1"
+	local locus1="dev $swp1 vid 10"
+	local locus2="dev $swp1 vid 20"
+	local max
+
+	RET=0
+
+	bridge_port_vlan_maxgroups_set "$locus1" 100
+	check_err $? "$locus1: Failed to set max to 100"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 0))
+	check_err $? "$locus0: Max groups expected to be 0, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 0))
+	check_err $? "$locus2: Max groups expected to be 0, but $max reported"
+
+	bridge_port_vlan_maxgroups_set "$locus2" 100
+	check_err $? "$locus2: Failed to set max to 100"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 0))
+	check_err $? "$locus0: Max groups expected to be 0, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 100))
+	check_err $? "$locus2: Max groups expected to be 100, but $max reported"
+
+	bridge_port_maxgroups_set "$locus0" 100
+	check_err $? "$locus0: Failed to set max to 100"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 100))
+	check_err $? "$locus0: Max groups expected to be 100, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 100))
+	check_err $? "$locus2: Max groups expected to be 100, but $max reported"
+
+	bridge_port_vlan_maxgroups_set "$locus1" 0
+	check_err $? "$locus1: Failed to set max to 0"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 100))
+	check_err $? "$locus0: Max groups expected to be 100, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 100))
+	check_err $? "$locus2: Max groups expected to be 100, but $max reported"
+
+	bridge_port_vlan_maxgroups_set "$locus2" 0
+	check_err $? "$locus2: Failed to set max to 0"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 100))
+	check_err $? "$locus0: Max groups expected to be 100, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 0))
+	check_err $? "$locus2: Max groups expected to be 0 but $max reported"
+
+	bridge_port_maxgroups_set "$locus0" 0
+	check_err $? "$locus0: Failed to set max to 0"
+
+	max=$(bridge_port_maxgroups_get "$locus0")
+	((max == 0))
+	check_err $? "$locus0: Max groups expected to be 0, but $max reported"
+
+	max=$(bridge_port_vlan_maxgroups_get "$locus2")
+	((max == 0))
+	check_err $? "$locus2: Max groups expected to be 0, but $max reported"
+
+	log_test "$CFG: port_vlan maxgroups: isolation of port and per-VLAN maximums"
+}
+
+test_8021qvs_maxgroups_zero_cross_vlan_cfg4()
+{
+	test_maxgroups_zero_cross_vlan cfg4
+}
+
+test_8021qvs_maxgroups_zero_cross_vlan_ctl4()
+{
+	test_maxgroups_zero_cross_vlan ctl4
+}
+
+test_8021qvs_maxgroups_zero_cross_vlan_cfg6()
+{
+	test_maxgroups_zero_cross_vlan cfg6
+}
+
+test_8021qvs_maxgroups_zero_cross_vlan_ctl6()
+{
+	test_maxgroups_zero_cross_vlan ctl6
+}
+
+test_maxgroups_too_low()
+{
+	local CFG=$1; shift
+	local context=$1; shift
+	local locus=$1; shift
+
+	RET=0
+
+	local n=$(bridge_${context}_ngroups_get "$locus")
+	local msg
+
+	${CFG}_entries_add "$locus" temp 5 111
+	check_err $? "$locus: Couldn't add MDB entries"
+
+	bridge_${context}_maxgroups_set "$locus" $((n+2))
+	check_err $? "$locus: Setting maxgroups to $((n+2)) failed"
+
+	msg=$(${CFG}_entries_add "$locus" temp 2 112 2>&1)
+	check_fail $? "$locus: Adding more entries passed when max<n"
+	bridge_maxgroups_errmsg_check_cfg "$msg"
+
+	${CFG}_entries_del "$locus" temp 5 111
+	check_err $? "$locus: Couldn't delete MDB entries"
+
+	${CFG}_entries_add "$locus" temp 2 112
+	check_err $? "$locus: Adding more entries failed"
+
+	${CFG}_entries_del "$locus" temp 2 112
+	check_err $? "$locus: Deleting more entries failed"
+
+	bridge_${context}_maxgroups_set "$locus" 0
+	check_err $? "$locus: Couldn't set maximum to 0"
+
+	log_test "$CFG: $context maxgroups: configure below ngroups"
+}
+
+test_8021d_maxgroups_too_low_cfg4()
+{
+	test_maxgroups_too_low cfg4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_low_ctl4()
+{
+	test_maxgroups_too_low ctl4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_low_cfg6()
+{
+	test_maxgroups_too_low cfg6 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_low_ctl6()
+{
+	test_maxgroups_too_low ctl6 port "dev $swp1"
+}
+
+test_8021q_maxgroups_too_low_cfg4()
+{
+	test_maxgroups_too_low cfg4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_low_ctl4()
+{
+	test_maxgroups_too_low ctl4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_low_cfg6()
+{
+	test_maxgroups_too_low cfg6 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_low_ctl6()
+{
+	test_maxgroups_too_low ctl6 port "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_low_cfg4()
+{
+	test_maxgroups_too_low cfg4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_low_ctl4()
+{
+	test_maxgroups_too_low ctl4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_low_cfg6()
+{
+	test_maxgroups_too_low cfg6 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_low_ctl6()
+{
+	test_maxgroups_too_low ctl6 port_vlan "dev $swp1 vid 10"
+}
+
+test_maxgroups_too_many_entries()
+{
+	local CFG=$1; shift
+	local context=$1; shift
+	local locus=$1; shift
+
+	RET=0
+
+	local n=$(bridge_${context}_ngroups_get "$locus")
+	local msg
+
+	# Configure a low maximum
+	bridge_${context}_maxgroups_set "$locus" $((n+1))
+	check_err $? "$locus: Couldn't set maximum"
+
+	# Try to add more entries than the configured maximum
+	msg=$(${CFG}_entries_add "$locus" temp 5 2>&1)
+	check_fail $? "Adding 5 MDB entries passed, but should have failed"
+	bridge_maxgroups_errmsg_check_${CFG} "$msg"
+
+	# When adding entries through the control path, as many as possible
+	# get created. That's consistent with the mcast_hash_max behavior.
+	# So there, drop the entries explicitly.
+	if [[ ${CFG%[46]} == ctl ]]; then
+		${CFG}_entries_del "$locus" temp 17 2>&1
+	fi
+
+	local n2=$(bridge_${context}_ngroups_get "$locus")
+	((n2 == n))
+	check_err $? "Number of groups was $n, but after a failed attempt to add MDB entries it changed to $n2"
+
+	bridge_${context}_maxgroups_set "$locus" 0
+	check_err $? "$locus: Couldn't set maximum to 0"
+
+	log_test "$CFG: $context maxgroups: add too many MDB entries"
+}
+
+test_8021d_maxgroups_too_many_entries_cfg4()
+{
+	test_maxgroups_too_many_entries cfg4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_many_entries_ctl4()
+{
+	test_maxgroups_too_many_entries ctl4 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_many_entries_cfg6()
+{
+	test_maxgroups_too_many_entries cfg6 port "dev $swp1"
+}
+
+test_8021d_maxgroups_too_many_entries_ctl6()
+{
+	test_maxgroups_too_many_entries ctl6 port "dev $swp1"
+}
+
+test_8021q_maxgroups_too_many_entries_cfg4()
+{
+	test_maxgroups_too_many_entries cfg4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_many_entries_ctl4()
+{
+	test_maxgroups_too_many_entries ctl4 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_many_entries_cfg6()
+{
+	test_maxgroups_too_many_entries cfg6 port "dev $swp1 vid 10"
+}
+
+test_8021q_maxgroups_too_many_entries_ctl6()
+{
+	test_maxgroups_too_many_entries ctl6 port "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_many_entries_cfg4()
+{
+	test_maxgroups_too_many_entries cfg4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_many_entries_ctl4()
+{
+	test_maxgroups_too_many_entries ctl4 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_many_entries_cfg6()
+{
+	test_maxgroups_too_many_entries cfg6 port_vlan "dev $swp1 vid 10"
+}
+
+test_8021qvs_maxgroups_too_many_entries_ctl6()
+{
+	test_maxgroups_too_many_entries ctl6 port_vlan "dev $swp1 vid 10"
+}
+
+test_maxgroups_too_many_cross_vlan()
+{
+	local CFG=$1; shift
+
+	RET=0
+
+	local locus0="dev $swp1"
+	local locus1="dev $swp1 vid 10"
+	local locus2="dev $swp1 vid 20"
+	local n1=$(bridge_port_vlan_ngroups_get "$locus1")
+	local n2=$(bridge_port_vlan_ngroups_get "$locus2")
+	local msg
+
+	if ((n1 > n2)); then
+		local tmp=$n1
+		n1=$n2
+		n2=$tmp
+
+		tmp="$locus1"
+		locus1="$locus2"
+		locus2="$tmp"
+	fi
+
+	# Now 0 <= n1 <= n2.
+	${CFG}_entries_add "$locus2" temp 5 112
+	check_err $? "Couldn't add 5 entries"
+
+	n2=$(bridge_port_vlan_ngroups_get "$locus2")
+	# Now 0 <= n1 < n2-1.
+
+	# Setting locus1'maxgroups to n2-1 should pass. The number is
+	# smaller than both the absolute number of MDB entries, and in
+	# particular than number of locus2's number of entries, but it is
+	# large enough to cover locus1's entries. Thus we check that
+	# individual VLAN's ngroups are independent.
+	bridge_port_vlan_maxgroups_set "$locus1" $((n2-1))
+	check_err $? "Setting ${locus1}'s maxgroups to $((n2-1)) failed"
+
+	msg=$(${CFG}_entries_add "$locus1" temp $n2 111 2>&1)
+	check_fail $? "$locus1: Adding $n2 MDB entries passed, but should have failed"
+	bridge_maxgroups_errmsg_check_${CFG} "$msg"
+
+	bridge_port_maxgroups_set "$locus0" $((n1 + n2 + 2))
+	check_err $? "$locus0: Couldn't set maximum"
+
+	msg=$(${CFG}_entries_add "$locus1" temp 5 111 2>&1)
+	check_fail $? "$locus1: Adding 5 MDB entries passed, but should have failed"
+	bridge_maxgroups_errmsg_check_${CFG} "$msg"
+
+	# IGMP/MLD packets can cause several entries to be added, before
+	# the maximum is hit and the rest is then bounced. Remove what was
+	# committed, if anything.
+	${CFG}_entries_del "$locus1" temp 5 111 2>/dev/null
+
+	${CFG}_entries_add "$locus1" temp 2 111
+	check_err $? "$locus1: Adding 2 MDB entries failed, but should have passed"
+
+	${CFG}_entries_del "$locus1" temp 2 111
+	check_err $? "Couldn't delete MDB entries"
+
+	${CFG}_entries_del "$locus2" temp 5 112
+	check_err $? "Couldn't delete MDB entries"
+
+	bridge_port_vlan_maxgroups_set "$locus1" 0
+	check_err $? "$locus1: Couldn't set maximum to 0"
+
+	bridge_port_maxgroups_set "$locus0" 0
+	check_err $? "$locus0: Couldn't set maximum to 0"
+
+	log_test "$CFG: port_vlan maxgroups: isolation of port and per-VLAN ngroups"
+}
+
+test_8021qvs_maxgroups_too_many_cross_vlan_cfg4()
+{
+	test_maxgroups_too_many_cross_vlan cfg4
+}
+
+test_8021qvs_maxgroups_too_many_cross_vlan_ctl4()
+{
+	test_maxgroups_too_many_cross_vlan ctl4
+}
+
+test_8021qvs_maxgroups_too_many_cross_vlan_cfg6()
+{
+	test_maxgroups_too_many_cross_vlan cfg6
+}
+
+test_8021qvs_maxgroups_too_many_cross_vlan_ctl6()
+{
+	test_maxgroups_too_many_cross_vlan ctl6
+}
+
+test_vlan_attributes()
+{
+	local locus=$1; shift
+	local expect=$1; shift
+
+	RET=0
+
+	local max=$(bridge_port_vlan_maxgroups_get "$locus")
+	local n=$(bridge_port_vlan_ngroups_get "$locus")
+
+	eval "[[ $max $expect ]]"
+	check_err $? "$locus: maxgroups attribute expected to be $expect, but was $max"
+
+	eval "[[ $n $expect ]]"
+	check_err $? "$locus: ngroups attribute expected to be $expect, but was $n"
+
+	log_test "port_vlan: presence of ngroups and maxgroups attributes"
+}
+
+test_8021q_vlan_attributes()
+{
+	test_vlan_attributes "dev $swp1 vid 10" "== null"
+}
+
+test_8021qvs_vlan_attributes()
+{
+	test_vlan_attributes "dev $swp1 vid 10" "-ge 0"
+}
+
+test_toggle_vlan_snooping()
+{
+	local mode=$1; shift
+
+	RET=0
+
+	local CFG=cfg4
+	local context=port_vlan
+	local locus="dev $swp1 vid 10"
+
+	${CFG}_entries_add "$locus" $mode 5
+	check_err $? "Couldn't add MDB entries"
+
+	bridge_${context}_maxgroups_set "$locus" 100
+	check_err $? "Failed to set max to 100"
+
+	ip link set dev br0 type bridge mcast_vlan_snooping 0
+	sleep 1
+	ip link set dev br0 type bridge mcast_vlan_snooping 1
+
+	local n=$(bridge_${context}_ngroups_get "$locus")
+	local nn=$(bridge mdb show dev br0 | grep $swp1 | wc -l)
+	((nn == n))
+	check_err $? "mcast_n_groups expected to be $nn, but $n reported"
+
+	local max=$(bridge_${context}_maxgroups_get "$locus")
+	((max == 100))
+	check_err $? "Max groups expected to be 100 but $max reported"
+
+	bridge_${context}_maxgroups_set "$locus" 0
+	check_err $? "Failed to set max to 0"
+
+	log_test "$CFG: $context: $mode: mcast_vlan_snooping toggle"
+}
+
+test_toggle_vlan_snooping_temp()
+{
+	test_toggle_vlan_snooping temp
+}
+
+test_toggle_vlan_snooping_permanent()
+{
+	test_toggle_vlan_snooping permanent
+}
+
+# ngroup test suites
+
+test_8021d_ngroups_cfg4()
+{
+	test_8021d_ngroups_reporting_cfg4
+}
+
+test_8021d_ngroups_ctl4()
+{
+	test_8021d_ngroups_reporting_ctl4
+}
+
+test_8021d_ngroups_cfg6()
+{
+	test_8021d_ngroups_reporting_cfg6
+}
+
+test_8021d_ngroups_ctl6()
+{
+	test_8021d_ngroups_reporting_ctl6
+}
+
+test_8021q_ngroups_cfg4()
+{
+	test_8021q_ngroups_reporting_cfg4
+}
+
+test_8021q_ngroups_ctl4()
+{
+	test_8021q_ngroups_reporting_ctl4
+}
+
+test_8021q_ngroups_cfg6()
+{
+	test_8021q_ngroups_reporting_cfg6
+}
+
+test_8021q_ngroups_ctl6()
+{
+	test_8021q_ngroups_reporting_ctl6
+}
+
+test_8021qvs_ngroups_cfg4()
+{
+	test_8021qvs_ngroups_reporting_cfg4
+	test_8021qvs_ngroups_cross_vlan_cfg4
+}
+
+test_8021qvs_ngroups_ctl4()
+{
+	test_8021qvs_ngroups_reporting_ctl4
+	test_8021qvs_ngroups_cross_vlan_ctl4
+}
+
+test_8021qvs_ngroups_cfg6()
+{
+	test_8021qvs_ngroups_reporting_cfg6
+	test_8021qvs_ngroups_cross_vlan_cfg6
+}
+
+test_8021qvs_ngroups_ctl6()
+{
+	test_8021qvs_ngroups_reporting_ctl6
+	test_8021qvs_ngroups_cross_vlan_ctl6
+}
+
+# maxgroups test suites
+
+test_8021d_maxgroups_cfg4()
+{
+	test_8021d_maxgroups_zero_cfg4
+	test_8021d_maxgroups_too_low_cfg4
+	test_8021d_maxgroups_too_many_entries_cfg4
+}
+
+test_8021d_maxgroups_ctl4()
+{
+	test_8021d_maxgroups_zero_ctl4
+	test_8021d_maxgroups_too_low_ctl4
+	test_8021d_maxgroups_too_many_entries_ctl4
+}
+
+test_8021d_maxgroups_cfg6()
+{
+	test_8021d_maxgroups_zero_cfg6
+	test_8021d_maxgroups_too_low_cfg6
+	test_8021d_maxgroups_too_many_entries_cfg6
+}
+
+test_8021d_maxgroups_ctl6()
+{
+	test_8021d_maxgroups_zero_ctl6
+	test_8021d_maxgroups_too_low_ctl6
+	test_8021d_maxgroups_too_many_entries_ctl6
+}
+
+test_8021q_maxgroups_cfg4()
+{
+	test_8021q_maxgroups_zero_cfg4
+	test_8021q_maxgroups_too_low_cfg4
+	test_8021q_maxgroups_too_many_entries_cfg4
+}
+
+test_8021q_maxgroups_ctl4()
+{
+	test_8021q_maxgroups_zero_ctl4
+	test_8021q_maxgroups_too_low_ctl4
+	test_8021q_maxgroups_too_many_entries_ctl4
+}
+
+test_8021q_maxgroups_cfg6()
+{
+	test_8021q_maxgroups_zero_cfg6
+	test_8021q_maxgroups_too_low_cfg6
+	test_8021q_maxgroups_too_many_entries_cfg6
+}
+
+test_8021q_maxgroups_ctl6()
+{
+	test_8021q_maxgroups_zero_ctl6
+	test_8021q_maxgroups_too_low_ctl6
+	test_8021q_maxgroups_too_many_entries_ctl6
+}
+
+test_8021qvs_maxgroups_cfg4()
+{
+	test_8021qvs_maxgroups_zero_cfg4
+	test_8021qvs_maxgroups_zero_cross_vlan_cfg4
+	test_8021qvs_maxgroups_too_low_cfg4
+	test_8021qvs_maxgroups_too_many_entries_cfg4
+	test_8021qvs_maxgroups_too_many_cross_vlan_cfg4
+}
+
+test_8021qvs_maxgroups_ctl4()
+{
+	test_8021qvs_maxgroups_zero_ctl4
+	test_8021qvs_maxgroups_zero_cross_vlan_ctl4
+	test_8021qvs_maxgroups_too_low_ctl4
+	test_8021qvs_maxgroups_too_many_entries_ctl4
+	test_8021qvs_maxgroups_too_many_cross_vlan_ctl4
+}
+
+test_8021qvs_maxgroups_cfg6()
+{
+	test_8021qvs_maxgroups_zero_cfg6
+	test_8021qvs_maxgroups_zero_cross_vlan_cfg6
+	test_8021qvs_maxgroups_too_low_cfg6
+	test_8021qvs_maxgroups_too_many_entries_cfg6
+	test_8021qvs_maxgroups_too_many_cross_vlan_cfg6
+}
+
+test_8021qvs_maxgroups_ctl6()
+{
+	test_8021qvs_maxgroups_zero_ctl6
+	test_8021qvs_maxgroups_zero_cross_vlan_ctl6
+	test_8021qvs_maxgroups_too_low_ctl6
+	test_8021qvs_maxgroups_too_many_entries_ctl6
+	test_8021qvs_maxgroups_too_many_cross_vlan_ctl6
+}
+
+# other test suites
+
+test_8021qvs_toggle_vlan_snooping()
+{
+	test_toggle_vlan_snooping_temp
+	test_toggle_vlan_snooping_permanent
+}
+
+# test groups
+
+test_8021d()
+{
+	# Tests for vlan_filtering 0 mcast_vlan_snooping 0.
+
+	switch_create_8021d
+	setup_wait
+
+	test_8021d_ngroups_cfg4
+	test_8021d_ngroups_ctl4
+	test_8021d_ngroups_cfg6
+	test_8021d_ngroups_ctl6
+	test_8021d_maxgroups_cfg4
+	test_8021d_maxgroups_ctl4
+	test_8021d_maxgroups_cfg6
+	test_8021d_maxgroups_ctl6
+
+	switch_destroy
+}
+
+test_8021q()
+{
+	# Tests for vlan_filtering 1 mcast_vlan_snooping 0.
+
+	switch_create_8021q
+	setup_wait
+
+	test_8021q_vlan_attributes
+	test_8021q_ngroups_cfg4
+	test_8021q_ngroups_ctl4
+	test_8021q_ngroups_cfg6
+	test_8021q_ngroups_ctl6
+	test_8021q_maxgroups_cfg4
+	test_8021q_maxgroups_ctl4
+	test_8021q_maxgroups_cfg6
+	test_8021q_maxgroups_ctl6
+
+	switch_destroy
+}
+
+test_8021qvs()
+{
+	# Tests for vlan_filtering 1 mcast_vlan_snooping 1.
+
+	switch_create_8021qvs
+	setup_wait
+
+	test_8021qvs_vlan_attributes
+	test_8021qvs_ngroups_cfg4
+	test_8021qvs_ngroups_ctl4
+	test_8021qvs_ngroups_cfg6
+	test_8021qvs_ngroups_ctl6
+	test_8021qvs_maxgroups_cfg4
+	test_8021qvs_maxgroups_ctl4
+	test_8021qvs_maxgroups_cfg6
+	test_8021qvs_maxgroups_ctl6
+	test_8021qvs_toggle_vlan_snooping
+
+	switch_destroy
+}
+
+if ! bridge link help 2>&1 | grep -q "mcast_max_groups"; then
+	echo "SKIP: iproute2 too old, missing bridge \"mcast_max_groups\" support"
+	exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh b/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh
new file mode 100755
index 000000000000..1a0480e71d83
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Verify that permanent mdb entries can be added to and deleted from bridge
+# interfaces that are down, and works correctly when done so.
+
+ALL_TESTS="add_del_to_port_down"
+NUM_NETIFS=4
+
+TEST_GROUP="239.10.10.10"
+TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
+
+source lib.sh
+
+
+add_del_to_port_down() {
+	RET=0
+
+	ip link set dev $swp2 down
+	bridge mdb add dev br0 port "$swp2" grp $TEST_GROUP permanent 2>/dev/null
+	check_err $? "Failed adding mdb entry"
+
+	ip link set dev $swp2 up
+	setup_wait_dev $swp2
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
+
+	ip link set dev $swp2 down
+	bridge mdb show dev br0 | grep -q "$TEST_GROUP permanent" 2>/dev/null
+	check_err $? "MDB entry did not persist after link up/down"
+
+	bridge mdb del dev br0 port "$swp2" grp $TEST_GROUP 2>/dev/null
+	check_err $? "Failed deleting mdb entry"
+
+	ip link set dev $swp2 up
+	setup_wait_dev $swp2
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_err $? "Traffic to $TEST_GROUP was forwarded after entry removed"
+
+	log_test "MDB add/del entry to port with state down "
+}
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	# Enable multicast filtering
+	ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+
+	bridge link set dev $swp2 mcast_flood off
+	# Bridge currently has a "grace time" at creation time before it
+	# forwards multicast according to the mdb. Since we disable the
+	# mcast_flood setting per port
+	sleep 10
+}
+
+switch_destroy()
+{
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+	h2_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+tests_run
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_mld.sh b/tools/testing/selftests/net/forwarding/bridge_mld.sh
new file mode 100755
index 000000000000..4cacef5a813a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mld.sh
@@ -0,0 +1,637 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	mldv2include_test
+	mldv2inc_allow_test
+	mldv2inc_is_include_test
+	mldv2inc_is_exclude_test
+	mldv2inc_to_exclude_test
+	mldv2exc_allow_test
+	mldv2exc_is_include_test
+	mldv2exc_is_exclude_test
+	mldv2exc_to_exclude_test
+	mldv2inc_block_test
+	mldv2exc_block_test
+	mldv2exc_timeout_test
+	mldv2star_ex_auto_add_test
+	mldv2per_vlan_snooping_port_stp_test
+	mldv2per_vlan_snooping_vlan_stp_test
+"
+NUM_NETIFS=4
+CHECK_TC="yes"
+TEST_GROUP="ff02::cc"
+TEST_GROUP_MAC="33:33:00:00:00:cc"
+
+# MLDv2 is_in report: grp ff02::cc is_include 2001:db8:1::1,2001:db8:1::2,2001:db8:1::3
+MZPKT_IS_INC="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:\
+00:00:00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:\
+00:05:02:00:00:00:00:8f:00:8e:d9:00:00:00:01:01:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:\
+00:00:00:00:cc:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01:20:01:0d:b8:00:01:00:00:00:\
+00:00:00:00:00:00:02:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+# MLDv2 is_in report: grp ff02::cc is_include 2001:db8:1::10,2001:db8:1::11,2001:db8:1::12
+MZPKT_IS_INC2="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:\
+00:00:00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:\
+05:02:00:00:00:00:8f:00:8e:ac:00:00:00:01:01:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:00:00:\
+00:00:cc:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:10:20:01:0d:b8:00:01:00:00:00:00:00:00:\
+00:00:00:11:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:12"
+# MLDv2 is_in report: grp ff02::cc is_include 2001:db8:1::20,2001:db8:1::30
+MZPKT_IS_INC3="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:44:00:01:fe:80:00:00:00:\
+00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:\
+00:00:00:8f:00:bc:5a:00:00:00:01:01:00:00:02:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:30"
+# MLDv2 allow report: grp ff02::cc allow 2001:db8:1::10,2001:db8:1::11,2001:db8:1::12
+MZPKT_ALLOW="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:00:\
+00:00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:\
+02:00:00:00:00:8f:00:8a:ac:00:00:00:01:05:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:\
+00:cc:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:10:20:01:0d:b8:00:01:00:00:00:00:00:00:00:\
+00:00:11:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:12"
+# MLDv2 allow report: grp ff02::cc allow 2001:db8:1::20,2001:db8:1::30
+MZPKT_ALLOW2="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:44:00:01:fe:80:00:00:00:\
+00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:\
+00:00:00:8f:00:b8:5a:00:00:00:01:05:00:00:02:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:30"
+# MLDv2 is_ex report: grp ff02::cc is_exclude 2001:db8:1::1,2001:db8:1::2,2001:db8:1::20,2001:db8:1::21
+MZPKT_IS_EXC="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:64:00:01:fe:80:00:00:00:\
+00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:\
+00:00:00:8f:00:5f:d0:00:00:00:01:02:00:00:04:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:02:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:21"
+# MLDv2 is_ex report: grp ff02::cc is_exclude 2001:db8:1::20,2001:db8:1::30
+MZPKT_IS_EXC2="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:44:00:01:fe:80:00:00:00:\
+00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:\
+00:00:00:8f:00:bb:5a:00:00:00:01:02:00:00:02:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:30"
+# MLDv2 to_ex report: grp ff02::cc to_exclude 2001:db8:1::1,2001:db8:1::20,2001:db8:1::30
+MZPKT_TO_EXC="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:00:00:\
+00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:\
+00:00:00:8f:00:8b:8e:00:00:00:01:04:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:\
+01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:30"
+# MLDv2 block report: grp ff02::cc block 2001:db8:1::1,2001:db8:1::20,2001:db8:1::30
+MZPKT_BLOCK="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:00:00:00:\
+00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:02:00:00:\
+00:00:8f:00:89:8e:00:00:00:01:06:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:cc:20:01:\
+0d:b8:00:01:00:00:00:00:00:00:00:00:00:01:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:20:20:01:\
+0d:b8:00:01:00:00:00:00:00:00:00:00:00:30"
+
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge mcast_snooping 1 mcast_query_response_interval 100 \
+					mcast_mld_version 2 mcast_startup_query_interval 300 \
+					mcast_querier 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	# make sure a query has been generated
+	sleep 5
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+mldv2include_prepare()
+{
+	local host1_if=$1
+	local X=("2001:db8:1::1" "2001:db8:1::2" "2001:db8:1::3")
+
+	ip link set dev br0 type bridge mcast_mld_version 2
+	check_err $? "Could not change bridge MLD version to 2"
+
+	$MZ $host1_if $MZPKT_IS_INC -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .source_list != null)" &>/dev/null
+	check_err $? "Missing *,G entry with source list"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"include\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+	brmcast_check_sg_entries "is_include" "${X[@]}"
+}
+
+mldv2exclude_prepare()
+{
+	local host1_if=$1
+	local mac=$2
+	local group=$3
+	local pkt=$4
+	local X=("2001:db8:1::1" "2001:db8:1::2")
+	local Y=("2001:db8:1::20" "2001:db8:1::21")
+
+	mldv2include_prepare $h1
+
+	$MZ $host1_if -c 1 $MZPKT_IS_EXC -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+			 .source_list != null and .filter_mode == \"exclude\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	brmcast_check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::3\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::3 entry still exists"
+}
+
+mldv2cleanup()
+{
+	local port=$1
+
+	bridge mdb del dev br0 port $port grp $TEST_GROUP
+	ip link set dev br0 type bridge mcast_mld_version 1
+}
+
+mldv2include_test()
+{
+	RET=0
+	local X=("2001:db8:1::1" "2001:db8:1::2" "2001:db8:1::3")
+
+	mldv2include_prepare $h1
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "2001:db8:1::100"
+
+	log_test "MLDv2 report $TEST_GROUP is_include"
+
+	mldv2cleanup $swp1
+}
+
+mldv2inc_allow_test()
+{
+	RET=0
+	local X=("2001:db8:1::10" "2001:db8:1::11" "2001:db8:1::12")
+
+	mldv2include_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_ALLOW -q
+	sleep 1
+	brmcast_check_sg_entries "allow" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "2001:db8:1::100"
+
+	log_test "MLDv2 report $TEST_GROUP include -> allow"
+
+	mldv2cleanup $swp1
+}
+
+mldv2inc_is_include_test()
+{
+	RET=0
+	local X=("2001:db8:1::10" "2001:db8:1::11" "2001:db8:1::12")
+
+	mldv2include_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_IS_INC2 -q
+	sleep 1
+	brmcast_check_sg_entries "is_include" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 "2001:db8:1::100"
+
+	log_test "MLDv2 report $TEST_GROUP include -> is_include"
+
+	mldv2cleanup $swp1
+}
+
+mldv2inc_is_exclude_test()
+{
+	RET=0
+
+	mldv2exclude_prepare $h1
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP include -> is_exclude"
+
+	mldv2cleanup $swp1
+}
+
+mldv2inc_to_exclude_test()
+{
+	RET=0
+	local X=("2001:db8:1::1")
+	local Y=("2001:db8:1::20" "2001:db8:1::30")
+
+	mldv2include_prepare $h1
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 $MZPKT_TO_EXC -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"exclude\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	brmcast_check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::2\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::2 entry still exists"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::21\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::21 entry still exists"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP include -> to_exclude"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_allow_test()
+{
+	RET=0
+	local X=("2001:db8:1::1" "2001:db8:1::2" "2001:db8:1::20" "2001:db8:1::30")
+	local Y=("2001:db8:1::21")
+
+	mldv2exclude_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_ALLOW2 -q
+	sleep 1
+	brmcast_check_sg_entries "allow" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP exclude -> allow"
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_is_include_test()
+{
+	RET=0
+	local X=("2001:db8:1::1" "2001:db8:1::2" "2001:db8:1::20" "2001:db8:1::30")
+	local Y=("2001:db8:1::21")
+
+	mldv2exclude_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_IS_INC3 -q
+	sleep 1
+	brmcast_check_sg_entries "is_include" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP exclude -> is_include"
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_is_exclude_test()
+{
+	RET=0
+	local X=("2001:db8:1::30")
+	local Y=("2001:db8:1::20")
+
+	mldv2exclude_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_IS_EXC2 -q
+	sleep 1
+	brmcast_check_sg_entries "is_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP exclude -> is_exclude"
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_to_exclude_test()
+{
+	RET=0
+	local X=("2001:db8:1::1" "2001:db8:1::30")
+	local Y=("2001:db8:1::20")
+
+	mldv2exclude_prepare $h1
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 $MZPKT_TO_EXC -q
+	sleep 1
+	brmcast_check_sg_entries "to_exclude" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP exclude -> to_exclude"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	mldv2cleanup $swp1
+}
+
+mldv2inc_block_test()
+{
+	RET=0
+	local X=("2001:db8:1::2" "2001:db8:1::3")
+
+	mldv2include_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_BLOCK -q
+	# make sure the lowered timers have expired (by default 2 seconds)
+	sleep 3
+	brmcast_check_sg_entries "block" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::1\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::1 entry still exists"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 2001:db8:1::100
+
+	log_test "MLDv2 report $TEST_GROUP include -> block"
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_block_test()
+{
+	RET=0
+	local X=("2001:db8:1::1" "2001:db8:1::2" "2001:db8:1::30")
+	local Y=("2001:db8:1::20" "2001:db8:1::21")
+
+	mldv2exclude_prepare $h1
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 $MZPKT_BLOCK -q
+	sleep 1
+	brmcast_check_sg_entries "block" "${X[@]}" "${Y[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+	brmcast_check_sg_state 1 "${Y[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}" 2001:db8:1::100
+	brmcast_check_sg_fwding 0 "${Y[@]}"
+
+	log_test "MLDv2 report $TEST_GROUP exclude -> block"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	mldv2cleanup $swp1
+}
+
+mldv2exc_timeout_test()
+{
+	RET=0
+	local X=("2001:db8:1::20" "2001:db8:1::30")
+
+	# GMI should be 5 seconds
+	ip link set dev br0 type bridge mcast_query_interval 100 \
+					mcast_query_response_interval 100 \
+					mcast_membership_interval 500
+
+	mldv2exclude_prepare $h1
+	ip link set dev br0 type bridge mcast_query_interval 500 \
+					mcast_query_response_interval 500 \
+					mcast_membership_interval 1500
+
+	$MZ $h1 -c 1 $MZPKT_ALLOW2 -q
+	sleep 5
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"include\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::1\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::1 entry still exists"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::2\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::2 entry still exists"
+
+	brmcast_check_sg_entries "allow" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 2001:db8:1::100
+
+	log_test "MLDv2 group $TEST_GROUP exclude timeout"
+
+	ip link set dev br0 type bridge mcast_query_interval 12500 \
+					mcast_query_response_interval 1000 \
+					mcast_membership_interval 26000
+
+	mldv2cleanup $swp1
+}
+
+mldv2star_ex_auto_add_test()
+{
+	RET=0
+
+	mldv2exclude_prepare $h1
+
+	$MZ $h2 -c 1 $MZPKT_IS_INC -q
+	sleep 1
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .src == \"2001:db8:1::3\" and \
+				.port == \"$swp1\")" &>/dev/null
+	check_err $? "S,G entry for *,G port doesn't exist"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .src == \"2001:db8:1::3\" and \
+				.port == \"$swp1\" and \
+				.flags[] == \"added_by_star_ex\")" &>/dev/null
+	check_err $? "Auto-added S,G entry doesn't have added_by_star_ex flag"
+
+	brmcast_check_sg_fwding 1 2001:db8:1::3
+
+	log_test "MLDv2 S,G port entry automatic add to a *,G port"
+
+	mldv2cleanup $swp1
+	mldv2cleanup $swp2
+}
+
+mldv2per_vlan_snooping_stp_test()
+{
+	local is_port=$1
+
+	local msg="port"
+	[[ $is_port -ne 1 ]] && msg="vlan"
+
+	ip link set br0 up type bridge vlan_filtering 1 \
+					mcast_mld_version 2 \
+					mcast_snooping 1 \
+					mcast_vlan_snooping 1 \
+					mcast_querier 1 \
+					mcast_stats_enabled 1
+	bridge vlan global set vid 1 dev br0 \
+					mcast_mld_version 2 \
+					mcast_snooping 1 \
+					mcast_querier 1 \
+					mcast_query_interval 100 \
+					mcast_startup_query_count 0
+
+	[[ $is_port -eq 1 ]] && bridge link set dev $swp1 state 0
+	[[ $is_port -ne 1 ]] && bridge vlan set vid 1 dev $swp1 state 4
+	sleep 5
+	local tx_s=$(ip -j -p stats show dev $swp1 \
+			group xstats_slave subgroup bridge suite mcast \
+			| jq '.[]["multicast"]["mld_queries"]["tx_v2"]')
+	[[ $is_port -eq 1 ]] && bridge link set dev $swp1 state 3
+	[[ $is_port -ne 1 ]] && bridge vlan set vid 1 dev $swp1 state 3
+	sleep 5
+	local tx_e=$(ip -j -p stats show dev $swp1 \
+			group xstats_slave subgroup bridge suite mcast \
+			| jq '.[]["multicast"]["mld_queries"]["tx_v2"]')
+
+	RET=0
+	local tx=$(expr $tx_e - $tx_s)
+	test $tx -gt 0
+	check_err $? "No MLD queries after STP state becomes forwarding"
+	log_test "per vlan snooping with $msg stp state change"
+
+	# restore settings
+	bridge vlan global set vid 1 dev br0 \
+					mcast_querier 0 \
+					mcast_query_interval 12500 \
+					mcast_startup_query_count 2 \
+					mcast_mld_version 1
+	ip link set br0 up type bridge vlan_filtering 0 \
+					mcast_vlan_snooping 0 \
+					mcast_stats_enabled 0
+}
+
+mldv2per_vlan_snooping_port_stp_test()
+{
+	mldv2per_vlan_snooping_stp_test 1
+}
+
+mldv2per_vlan_snooping_vlan_stp_test()
+{
+	mldv2per_vlan_snooping_stp_test 0
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh b/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh
new file mode 100755
index 000000000000..a43b4645c4de
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_port_isolation.sh
@@ -0,0 +1,151 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 flooding"
+NUM_NETIFS=6
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.2.3/24 2001:db8:1::3/64
+}
+
+h3_destroy()
+{
+	simple_if_fini $h3 192.0.2.3/24 2001:db8:1::3/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+	ip link set dev $swp3 master br0
+
+	ip link set dev $swp1 type bridge_slave isolated on
+	check_err $? "Can't set isolation on port $swp1"
+	ip link set dev $swp2 type bridge_slave isolated on
+	check_err $? "Can't set isolation on port $swp2"
+	ip link set dev $swp3 type bridge_slave isolated off
+	check_err $? "Can't disable isolation on port $swp3"
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+	ip link set dev $swp3 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp3 down
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	RET=0
+	ping_do $h1 192.0.2.2
+	check_fail $? "Ping worked when it should not have"
+
+	RET=0
+	ping_do $h3 192.0.2.2
+	check_err $? "Ping didn't work when it should have"
+
+	log_test "Isolated port ping"
+}
+
+ping_ipv6()
+{
+	RET=0
+	ping6_do $h1 2001:db8:1::2
+	check_fail $? "Ping6 worked when it should not have"
+
+	RET=0
+	ping6_do $h3 2001:db8:1::2
+	check_err $? "Ping6 didn't work when it should have"
+
+	log_test "Isolated port ping6"
+}
+
+flooding()
+{
+	local mac=de:ad:be:ef:13:37
+	local ip=192.0.2.100
+
+	RET=0
+	flood_test_do false $mac $ip $h1 $h2
+	check_err $? "Packet was flooded when it should not have been"
+
+	RET=0
+	flood_test_do true $mac $ip $h3 $h2
+	check_err $? "Packet was not flooded when it should have been"
+
+	log_test "Isolated port flooding"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
new file mode 100755
index 000000000000..1f8ef0eff862
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_sticky_fdb.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="sticky"
+NUM_NETIFS=4
+TEST_MAC=de:ad:be:ef:13:37
+source lib.sh
+
+switch_create()
+{
+	ip link add dev br0 type bridge
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $h1 up
+	ip link set dev $swp1 up
+	ip link set dev $h2 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $h2 down
+	ip link set dev $swp1 down
+	ip link set dev $h1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+	h2=${NETIFS[p3]}
+	swp2=${NETIFS[p4]}
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+	switch_destroy
+}
+
+sticky()
+{
+	bridge fdb add $TEST_MAC dev $swp1 master static sticky
+	check_err $? "Could not add fdb entry"
+	bridge fdb del $TEST_MAC dev $swp1 vlan 1 master static sticky
+	$MZ $h2 -c 1 -a $TEST_MAC -t arp "request" -q
+	bridge -j fdb show br br0 brport $swp1\
+		| jq -e ".[] | select(.mac == \"$TEST_MAC\")" &> /dev/null
+	check_err $? "Did not find FDB record when should"
+
+	log_test "Sticky fdb entry"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh
new file mode 100755
index 000000000000..e59fba366a0a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh
@@ -0,0 +1,298 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 learning flooding vlan_deletion extern_learn other_tpid 8021p drop_untagged"
+NUM_NETIFS=4
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge \
+		vlan_filtering 1 \
+		ageing_time $LOW_AGEING_TIME \
+		mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:1::2
+}
+
+learning()
+{
+	learning_test "br0" $swp1 $h1 $h2
+}
+
+flooding()
+{
+	flood_test $swp2 $h1 $h2
+}
+
+vlan_deletion()
+{
+	# Test that the deletion of a VLAN on a bridge port does not affect
+	# the PVID VLAN
+	log_info "Add and delete a VLAN on bridge port $swp1"
+
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan del vid 10 dev $swp1
+
+	ping_ipv4
+	ping_ipv6
+}
+
+extern_learn()
+{
+	local mac=de:ad:be:ef:13:37
+	local ageing_time
+
+	# Test that externally learned FDB entries can roam, but not age out
+	RET=0
+
+	bridge fdb add de:ad:be:ef:13:37 dev $swp1 master extern_learn vlan 1
+
+	bridge fdb show brport $swp1 | grep -q de:ad:be:ef:13:37
+	check_err $? "Did not find FDB entry when should"
+
+	# Wait for 10 seconds after the ageing time to make sure the FDB entry
+	# was not aged out
+	ageing_time=$(bridge_ageing_time_get br0)
+	sleep $((ageing_time + 10))
+
+	bridge fdb show brport $swp1 | grep -q de:ad:be:ef:13:37
+	check_err $? "FDB entry was aged out when should not"
+
+	$MZ $h2 -c 1 -p 64 -a $mac -t ip -q
+
+	bridge fdb show brport $swp2 | grep -q de:ad:be:ef:13:37
+	check_err $? "FDB entry did not roam when should"
+
+	log_test "Externally learned FDB entry - ageing & roaming"
+
+	bridge fdb del de:ad:be:ef:13:37 dev $swp2 master vlan 1 &> /dev/null
+	bridge fdb del de:ad:be:ef:13:37 dev $swp1 master vlan 1 &> /dev/null
+}
+
+other_tpid()
+{
+	local mac=de:ad:be:ef:13:37
+
+	# Test that packets with TPID 802.1ad VID 3 + TPID 802.1Q VID 5 are
+	# classified as untagged by a bridge with vlan_protocol 802.1Q, and
+	# are processed in the PVID of the ingress port (here 1). Not VID 3,
+	# and not VID 5.
+	RET=0
+
+	tc qdisc add dev $h2 clsact
+	tc filter add dev $h2 ingress protocol all pref 1 handle 101 \
+		flower dst_mac $mac action drop
+	ip link set $h2 promisc on
+	ethtool -K $h2 rx-vlan-filter off rx-vlan-stag-filter off
+
+	$MZ -q $h1 -c 1 -b $mac -a own "88:a8 00:03 81:00 00:05 08:00 aa-aa-aa-aa-aa-aa-aa-aa-aa"
+	sleep 1
+
+	# Match on 'self' addresses as well, for those drivers which
+	# do not push their learned addresses to the bridge software
+	# database
+	bridge -j fdb show $swp1 | \
+		jq -e ".[] | select(.mac == \"$(mac_get $h1)\") | select(.vlan == 1)" &> /dev/null
+	check_err $? "FDB entry was not learned when it should"
+
+	log_test "FDB entry in PVID for VLAN-tagged with other TPID"
+
+	RET=0
+	tc -j -s filter show dev $h2 ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	check_err $? "Packet was not forwarded when it should"
+	log_test "Reception of VLAN with other TPID as untagged"
+
+	bridge vlan del dev $swp1 vid 1
+
+	$MZ -q $h1 -c 1 -b $mac -a own "88:a8 00:03 81:00 00:05 08:00 aa-aa-aa-aa-aa-aa-aa-aa-aa"
+	sleep 1
+
+	RET=0
+	tc -j -s filter show dev $h2 ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	check_err $? "Packet was forwarded when should not"
+	log_test "Reception of VLAN with other TPID as untagged (no PVID)"
+
+	bridge vlan add dev $swp1 vid 1 pvid untagged
+	ip link set $h2 promisc off
+	tc qdisc del dev $h2 clsact
+}
+
+8021p_do()
+{
+	local should_fail=$1; shift
+	local mac=de:ad:be:ef:13:37
+
+	tc filter add dev $h2 ingress protocol all pref 1 handle 101 \
+		flower dst_mac $mac action drop
+
+	$MZ -q $h1 -c 1 -b $mac -a own "81:00 00:00 08:00 aa-aa-aa-aa-aa-aa-aa-aa-aa"
+	sleep 1
+
+	tc -j -s filter show dev $h2 ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	check_err_fail $should_fail $? "802.1p-tagged reception"
+
+	tc filter del dev $h2 ingress pref 1
+}
+
+8021p()
+{
+	RET=0
+
+	tc qdisc add dev $h2 clsact
+	ip link set $h2 promisc on
+
+	# Test that with the default_pvid, 1, packets tagged with VID 0 are
+	# accepted.
+	8021p_do 0
+
+	# Test that packets tagged with VID 0 are still accepted after changing
+	# the default_pvid.
+	ip link set br0 type bridge vlan_default_pvid 10
+	8021p_do 0
+
+	log_test "Reception of 802.1p-tagged traffic"
+
+	ip link set $h2 promisc off
+	tc qdisc del dev $h2 clsact
+}
+
+send_untagged_and_8021p()
+{
+	ping_do $h1 192.0.2.2
+	check_fail $?
+
+	8021p_do 1
+}
+
+drop_untagged()
+{
+	RET=0
+
+	tc qdisc add dev $h2 clsact
+	ip link set $h2 promisc on
+
+	# Test that with no PVID, untagged and 802.1p-tagged traffic is
+	# dropped.
+	ip link set br0 type bridge vlan_default_pvid 1
+
+	# First we reconfigure the default_pvid, 1, as a non-PVID VLAN.
+	bridge vlan add dev $swp1 vid 1 untagged
+	send_untagged_and_8021p
+	bridge vlan add dev $swp1 vid 1 pvid untagged
+
+	# Next we try to delete VID 1 altogether
+	bridge vlan del dev $swp1 vid 1
+	send_untagged_and_8021p
+	bridge vlan add dev $swp1 vid 1 pvid untagged
+
+	# Set up the bridge without a default_pvid, then check that the 8021q
+	# module, when the bridge port goes down and then up again, does not
+	# accidentally re-enable untagged packet reception.
+	ip link set br0 type bridge vlan_default_pvid 0
+	ip link set $swp1 down
+	ip link set $swp1 up
+	setup_wait
+	send_untagged_and_8021p
+
+	# Remove swp1 as a bridge port and let it rejoin the bridge while it
+	# has no default_pvid.
+	ip link set $swp1 nomaster
+	ip link set $swp1 master br0
+	send_untagged_and_8021p
+
+	# Restore settings
+	ip link set br0 type bridge vlan_default_pvid 1
+
+	log_test "Dropping of untagged and 802.1p-tagged traffic with no PVID"
+
+	ip link set $h2 promisc off
+	tc qdisc del dev $h2 clsact
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
new file mode 100755
index 000000000000..72dfbeaf56b9
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
@@ -0,0 +1,546 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="vlmc_control_test vlmc_querier_test vlmc_igmp_mld_version_test \
+	   vlmc_last_member_test vlmc_startup_query_test vlmc_membership_test \
+	   vlmc_querier_intvl_test vlmc_query_intvl_test vlmc_query_response_intvl_test \
+	   vlmc_router_port_test vlmc_filtering_test"
+NUM_NETIFS=4
+CHECK_TC="yes"
+TEST_GROUP="239.10.10.10"
+
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+	ip link add l $h1 $h1.10 up type vlan id 10
+}
+
+h1_destroy()
+{
+	ip link del $h1.10
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+	ip link add l $h2 $h2.10 up type vlan id 10
+}
+
+h2_destroy()
+{
+	ip link del $h2.10
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1 vlan_filtering 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+
+	bridge vlan add vid 10-11 dev $swp1 master
+	bridge vlan add vid 10-11 dev $swp2 master
+
+	ip link set dev br0 type bridge mcast_vlan_snooping 1
+	check_err $? "Could not enable global vlan multicast snooping"
+	log_test "Vlan multicast snooping enable"
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+vlmc_v2join_test()
+{
+	local expect=$1
+
+	RET=0
+	ip address add dev $h2.10 $TEST_GROUP/32 autojoin
+	check_err $? "Could not join $TEST_GROUP"
+
+	sleep 5
+	bridge -j mdb show dev br0 |
+		jq -e ".[].mdb[] | select(.grp == \"$TEST_GROUP\" and .vid == 10)" &>/dev/null
+	if [ $expect -eq 0 ]; then
+		check_err $? "IGMPv2 report didn't create mdb entry for $TEST_GROUP"
+	else
+		check_fail $? "IGMPv2 report shouldn't have created mdb entry for $TEST_GROUP"
+	fi
+
+	# check if we need to cleanup
+	if [ $RET -eq 0 ]; then
+		ip address del dev $h2.10 $TEST_GROUP/32 2>&1 1>/dev/null
+		sleep 5
+		bridge -j mdb show dev br0 |
+			jq -e ".[].mdb[] | select(.grp == \"$TEST_GROUP\" and \
+						  .vid == 10)" &>/dev/null
+		check_fail $? "IGMPv2 leave didn't remove mdb entry for $TEST_GROUP"
+	fi
+}
+
+vlmc_control_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+	log_test "Vlan global options existence"
+
+	RET=0
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and .mcast_snooping == 1) " &>/dev/null
+	check_err $? "Wrong default mcast_snooping global option value"
+	log_test "Vlan mcast_snooping global option default value"
+
+	RET=0
+	vlmc_v2join_test 0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 0
+	check_err $? "Could not disable multicast snooping in vlan 10"
+	vlmc_v2join_test 1
+	log_test "Vlan 10 multicast snooping control"
+}
+
+# setup for general query counting
+vlmc_query_cnt_xstats()
+{
+	local type=$1
+	local version=$2
+	local dev=$3
+
+	ip -j link xstats type bridge_slave dev $dev | \
+	jq -e ".[].multicast.${type}_queries.tx_v${version}"
+}
+
+vlmc_query_cnt_setup()
+{
+	local type=$1
+	local dev=$2
+
+	if [[ $type == "igmp" ]]; then
+		tc filter add dev $dev egress pref 10 prot 802.1Q \
+			flower vlan_id 10 vlan_ethtype ipv4 dst_ip 224.0.0.1 ip_proto 2 \
+			action pass
+	else
+		tc filter add dev $dev egress pref 10 prot 802.1Q \
+			flower vlan_id 10 vlan_ethtype ipv6 dst_ip ff02::1 ip_proto icmpv6 \
+			action pass
+	fi
+
+	ip link set dev br0 type bridge mcast_stats_enabled 1
+}
+
+vlmc_query_cnt_cleanup()
+{
+	local dev=$1
+
+	ip link set dev br0 type bridge mcast_stats_enabled 0
+	tc filter del dev $dev egress pref 10
+}
+
+vlmc_check_query()
+{
+	local type=$1
+	local version=$2
+	local dev=$3
+	local expect=$4
+	local time=$5
+	local ret=0
+
+	vlmc_query_cnt_setup $type $dev
+
+	local pre_tx_xstats=$(vlmc_query_cnt_xstats $type $version $dev)
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 1
+	ret=$?
+	if [[ $ret -eq 0 ]]; then
+		sleep $time
+
+		local tcstats=$(tc_rule_stats_get $dev 10 egress)
+		local post_tx_xstats=$(vlmc_query_cnt_xstats $type $version $dev)
+
+		if [[ $tcstats != $expect || \
+		      $(($post_tx_xstats-$pre_tx_xstats)) != $expect || \
+		      $tcstats != $(($post_tx_xstats-$pre_tx_xstats)) ]]; then
+			ret=1
+		fi
+	fi
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 0
+	vlmc_query_cnt_cleanup $dev
+
+	return $ret
+}
+
+vlmc_querier_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and .mcast_querier == 0) " &>/dev/null
+	check_err $? "Wrong default mcast_querier global vlan option value"
+	log_test "Vlan mcast_querier global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 1
+	check_err $? "Could not enable querier in vlan 10"
+	log_test "Vlan 10 multicast querier enable"
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 0
+
+	RET=0
+	vlmc_check_query igmp 2 $swp1 1 1
+	check_err $? "No vlan tagged IGMPv2 general query packets sent"
+	log_test "Vlan 10 tagged IGMPv2 general query sent"
+
+	RET=0
+	vlmc_check_query mld 1 $swp1 1 1
+	check_err $? "No vlan tagged MLD general query packets sent"
+	log_test "Vlan 10 tagged MLD general query sent"
+}
+
+vlmc_igmp_mld_version_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and .mcast_igmp_version == 2) " &>/dev/null
+	check_err $? "Wrong default mcast_igmp_version global vlan option value"
+	log_test "Vlan mcast_igmp_version global option default value"
+
+	RET=0
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and .mcast_mld_version == 1) " &>/dev/null
+	check_err $? "Wrong default mcast_mld_version global vlan option value"
+	log_test "Vlan mcast_mld_version global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 3
+	check_err $? "Could not set mcast_igmp_version in vlan 10"
+	log_test "Vlan 10 mcast_igmp_version option changed to 3"
+
+	RET=0
+	vlmc_check_query igmp 3 $swp1 1 1
+	check_err $? "No vlan tagged IGMPv3 general query packets sent"
+	log_test "Vlan 10 tagged IGMPv3 general query sent"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 2
+	check_err $? "Could not set mcast_mld_version in vlan 10"
+	log_test "Vlan 10 mcast_mld_version option changed to 2"
+
+	RET=0
+	vlmc_check_query mld 2 $swp1 1 1
+	check_err $? "No vlan tagged MLDv2 general query packets sent"
+	log_test "Vlan 10 tagged MLDv2 general query sent"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_igmp_version 2
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_mld_version 1
+}
+
+vlmc_last_member_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_last_member_count == 2) " &>/dev/null
+	check_err $? "Wrong default mcast_last_member_count global vlan option value"
+	log_test "Vlan mcast_last_member_count global option default value"
+
+	RET=0
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_last_member_interval == 100) " &>/dev/null
+	check_err $? "Wrong default mcast_last_member_interval global vlan option value"
+	log_test "Vlan mcast_last_member_interval global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_last_member_count 3
+	check_err $? "Could not set mcast_last_member_count in vlan 10"
+	log_test "Vlan 10 mcast_last_member_count option changed to 3"
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_last_member_count 2
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_last_member_interval 200
+	check_err $? "Could not set mcast_last_member_interval in vlan 10"
+	log_test "Vlan 10 mcast_last_member_interval option changed to 200"
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_last_member_interval 100
+}
+
+vlmc_startup_query_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_startup_query_interval == 3125) " &>/dev/null
+	check_err $? "Wrong default mcast_startup_query_interval global vlan option value"
+	log_test "Vlan mcast_startup_query_interval global option default value"
+
+	RET=0
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_startup_query_count == 2) " &>/dev/null
+	check_err $? "Wrong default mcast_startup_query_count global vlan option value"
+	log_test "Vlan mcast_startup_query_count global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_interval 100
+	check_err $? "Could not set mcast_startup_query_interval in vlan 10"
+	vlmc_check_query igmp 2 $swp1 2 3
+	check_err $? "Wrong number of tagged IGMPv2 general queries sent"
+	log_test "Vlan 10 mcast_startup_query_interval option changed to 100"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 3
+	check_err $? "Could not set mcast_startup_query_count in vlan 10"
+	vlmc_check_query igmp 2 $swp1 3 4
+	check_err $? "Wrong number of tagged IGMPv2 general queries sent"
+	log_test "Vlan 10 mcast_startup_query_count option changed to 3"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_interval 3125
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 2
+}
+
+vlmc_membership_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_membership_interval == 26000) " &>/dev/null
+	check_err $? "Wrong default mcast_membership_interval global vlan option value"
+	log_test "Vlan mcast_membership_interval global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_membership_interval 200
+	check_err $? "Could not set mcast_membership_interval in vlan 10"
+	log_test "Vlan 10 mcast_membership_interval option changed to 200"
+
+	RET=0
+	vlmc_v2join_test 1
+	log_test "Vlan 10 mcast_membership_interval mdb entry expire"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_membership_interval 26000
+}
+
+vlmc_querier_intvl_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_querier_interval == 25500) " &>/dev/null
+	check_err $? "Wrong default mcast_querier_interval global vlan option value"
+	log_test "Vlan mcast_querier_interval global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier_interval 100
+	check_err $? "Could not set mcast_querier_interval in vlan 10"
+	log_test "Vlan 10 mcast_querier_interval option changed to 100"
+
+	RET=0
+	ip link add dev br1 type bridge mcast_snooping 1 mcast_querier 1 vlan_filtering 1 \
+					mcast_vlan_snooping 1
+	bridge vlan add vid 10 dev br1 self pvid untagged
+	ip link set dev $h1 master br1
+	ip link set dev br1 up
+	bridge vlan add vid 10 dev $h1 master
+	bridge vlan global set vid 10 dev br1 mcast_snooping 1 mcast_querier 1
+	sleep 2
+	ip link del dev br1
+	ip addr replace 2001:db8:1::1/64 dev $h1
+	vlmc_check_query igmp 2 $swp1 1 1
+	check_err $? "Wrong number of IGMPv2 general queries after querier interval"
+	log_test "Vlan 10 mcast_querier_interval expire after outside query"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier_interval 25500
+}
+
+vlmc_query_intvl_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_query_interval == 12500) " &>/dev/null
+	check_err $? "Wrong default mcast_query_interval global vlan option value"
+	log_test "Vlan mcast_query_interval global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 200
+	check_err $? "Could not set mcast_query_interval in vlan 10"
+	# 1 is sent immediately, then 2 more in the next 5 seconds
+	vlmc_check_query igmp 2 $swp1 3 5
+	check_err $? "Wrong number of tagged IGMPv2 general queries sent"
+	log_test "Vlan 10 mcast_query_interval option changed to 200"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_startup_query_count 2
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_interval 12500
+}
+
+vlmc_query_response_intvl_test()
+{
+	RET=0
+	local goutput=`bridge -j vlan global show`
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10)" &>/dev/null
+	check_err $? "Could not find vlan 10's global options"
+
+	echo -n $goutput |
+		jq -e ".[].vlans[] | select(.vlan == 10 and \
+					    .mcast_query_response_interval == 1000) " &>/dev/null
+	check_err $? "Wrong default mcast_query_response_interval global vlan option value"
+	log_test "Vlan mcast_query_response_interval global option default value"
+
+	RET=0
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 200
+	check_err $? "Could not set mcast_query_response_interval in vlan 10"
+	log_test "Vlan 10 mcast_query_response_interval option changed to 200"
+
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1000
+}
+
+vlmc_router_port_test()
+{
+	RET=0
+	local goutput=`bridge -j -d vlan show`
+	echo -n $goutput |
+		jq -e ".[] | select(.ifname == \"$swp1\" and \
+				    .vlans[].vlan == 10)" &>/dev/null
+	check_err $? "Could not find port vlan 10's options"
+
+	echo -n $goutput |
+		jq -e ".[] | select(.ifname == \"$swp1\" and \
+				    .vlans[].vlan == 10 and \
+				    .vlans[].mcast_router == 1)" &>/dev/null
+	check_err $? "Wrong default port mcast_router option value"
+	log_test "Port vlan 10 option mcast_router default value"
+
+	RET=0
+	bridge vlan set vid 10 dev $swp1 mcast_router 2
+	check_err $? "Could not set port vlan 10's mcast_router option"
+	log_test "Port vlan 10 mcast_router option changed to 2"
+
+	RET=0
+	tc filter add dev $swp1 egress pref 10 prot 802.1Q \
+		flower vlan_id 10 vlan_ethtype ipv4 dst_ip 239.1.1.1 ip_proto udp action pass
+	tc filter add dev $swp2 egress pref 10 prot 802.1Q \
+		flower vlan_id 10 vlan_ethtype ipv4 dst_ip 239.1.1.1 ip_proto udp action pass
+	bridge vlan set vid 10 dev $swp2 mcast_router 0
+	# we need to enable querier and disable query response interval to
+	# make sure packets are flooded only to router ports
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 1 \
+					      mcast_query_response_interval 0
+	bridge vlan add vid 10 dev br0 self
+	sleep 1
+	mausezahn br0 -Q 10 -c 10 -p 128 -b 01:00:5e:01:01:01 -B 239.1.1.1 \
+			-t udp "dp=1024" &>/dev/null
+	local swp1_tcstats=$(tc_rule_stats_get $swp1 10 egress)
+	if [[ $swp1_tcstats != 10 ]]; then
+		check_err 1 "Wrong number of vlan 10 multicast packets flooded"
+	fi
+	local swp2_tcstats=$(tc_rule_stats_get $swp2 10 egress)
+	check_err $swp2_tcstats "Vlan 10 multicast packets flooded to non-router port"
+	log_test "Flood unknown vlan multicast packets to router port only"
+
+	tc filter del dev $swp2 egress pref 10
+	tc filter del dev $swp1 egress pref 10
+	bridge vlan del vid 10 dev br0 self
+	bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1000
+	bridge vlan set vid 10 dev $swp2 mcast_router 1
+	bridge vlan set vid 10 dev $swp1 mcast_router 1
+}
+
+vlmc_filtering_test()
+{
+	RET=0
+	ip link set dev br0 type bridge vlan_filtering 0
+	ip -j -d link show dev br0 | \
+	jq -e "select(.[0].linkinfo.info_data.mcast_vlan_snooping == 1)" &>/dev/null
+	check_fail $? "Vlan filtering is disabled but multicast vlan snooping is still enabled"
+	log_test "Disable multicast vlan snooping when vlan filtering is disabled"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh
new file mode 100755
index 000000000000..2b5700b61ffa
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_unaware.sh
@@ -0,0 +1,124 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 learning flooding pvid_change"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge \
+		ageing_time $LOW_AGEING_TIME \
+		mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+switch_destroy()
+{
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	local msg=$1
+
+	ping_test $h1 192.0.2.2 "$msg"
+}
+
+ping_ipv6()
+{
+	local msg=$1
+
+	ping6_test $h1 2001:db8:1::2 "$msg"
+}
+
+learning()
+{
+	learning_test "br0" $swp1 $h1 $h2
+}
+
+flooding()
+{
+	flood_test $swp2 $h1 $h2
+}
+
+pvid_change()
+{
+	# Test that the changing of the VLAN-aware PVID does not affect
+	# VLAN-unaware forwarding
+	bridge vlan add vid 3 dev $swp1 pvid untagged
+
+	ping_ipv4 " with bridge port $swp1 PVID changed"
+	ping_ipv6 " with bridge port $swp1 PVID changed"
+
+	bridge vlan del vid 3 dev $swp1
+
+	ping_ipv4 " with bridge port $swp1 PVID deleted"
+	ping_ipv6 " with bridge port $swp1 PVID deleted"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/config b/tools/testing/selftests/net/forwarding/config
new file mode 100644
index 000000000000..ce64518aaa11
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/config
@@ -0,0 +1,55 @@
+CONFIG_BPF_SYSCALL=y
+CONFIG_BRIDGE=m
+CONFIG_BRIDGE_IGMP_SNOOPING=y
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_CGROUP_BPF=y
+CONFIG_DUMMY=m
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_IPV6=y
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_MROUTE=y
+CONFIG_IPV6_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_PIMSM_V2=y
+CONFIG_MACVLAN=m
+CONFIG_NAMESPACES=y
+CONFIG_NET_ACT_CT=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_MPLS=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_SAMPLE=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_TUNNEL_KEY=m
+CONFIG_NET_ACT_VLAN=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_FLOWER=m
+CONFIG_NET_CLS_MATCHALL=m
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_META=m
+CONFIG_NETFILTER=y
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IPIP=m
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_NS=y
+CONFIG_NET_SCH_ETS=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_TC_SKB_EXT=y
+CONFIG_NET_TEAM=y
+CONFIG_NET_TEAM_MODE_LOADBALANCE=y
+CONFIG_NET_VRF=m
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_TABLES=m
+CONFIG_VETH=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VXLAN=m
+CONFIG_XFRM_USER=m
diff --git a/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh
new file mode 100755
index 000000000000..5dbfab0e23e3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/custom_multipath_hash.sh
@@ -0,0 +1,372 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution between two paths when using custom hash policy.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------------+
+# | SW1                     |                         |
+# |                    $rp1 +                         |
+# |         198.51.100.1/24                           |
+# |        2001:db8:1::1/64                           |
+# |                                                   |
+# |                                                   |
+# |            $rp11 +             + $rp12            |
+# |     192.0.2.1/28 |             | 192.0.2.17/28    |
+# | 2001:db8:2::1/64 |             | 2001:db8:3::1/64 |
+# +------------------|-------------|------------------+
+#                    |             |
+# +------------------|-------------|------------------+
+# | SW2              |             |                  |
+# |                  |             |                  |
+# |            $rp21 +             + $rp22            |
+# |     192.0.2.2/28                 192.0.2.18/28    |
+# | 2001:db8:2::2/64                 2001:db8:3::2/64 |
+# |                                                   |
+# |                                                   |
+# |                    $rp2 +                         |
+# |          203.0.113.1/24 |                         |
+# |        2001:db8:4::1/64 |                         |
+# +-------------------------|-------------------------+
+#                           |
+# +-------------------------|------+
+# | H2                      |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:4::{2-fd}/64        |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $rp1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $rp11 v$rp1 192.0.2.1/28 2001:db8:2::1/64
+	__simple_if_init $rp12 v$rp1 192.0.2.17/28 2001:db8:3::1/64
+
+	ip route add vrf v$rp1 203.0.113.0/24 \
+		nexthop via 192.0.2.2 dev $rp11 \
+		nexthop via 192.0.2.18 dev $rp12
+
+	ip -6 route add vrf v$rp1 2001:db8:4::/64 \
+		nexthop via 2001:db8:2::2 dev $rp11 \
+		nexthop via 2001:db8:3::2 dev $rp12
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$rp1 2001:db8:4::/64
+
+	ip route del vrf v$rp1 203.0.113.0/24
+
+	__simple_if_fini $rp12 192.0.2.17/28 2001:db8:3::1/64
+	__simple_if_fini $rp11 192.0.2.1/28 2001:db8:2::1/64
+	simple_if_fini $rp1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $rp2 203.0.113.1/24 2001:db8:4::1/64
+	__simple_if_init $rp21 v$rp2 192.0.2.2/28 2001:db8:2::2/64
+	__simple_if_init $rp22 v$rp2 192.0.2.18/28 2001:db8:3::2/64
+
+	ip route add vrf v$rp2 198.51.100.0/24 \
+		nexthop via 192.0.2.1 dev $rp21 \
+		nexthop via 192.0.2.17 dev $rp22
+
+	ip -6 route add vrf v$rp2 2001:db8:1::/64 \
+		nexthop via 2001:db8:2::1 dev $rp21 \
+		nexthop via 2001:db8:3::1 dev $rp22
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$rp2 2001:db8:1::/64
+
+	ip route del vrf v$rp2 198.51.100.0/24
+
+	__simple_if_fini $rp22 192.0.2.18/28 2001:db8:3::2/64
+	__simple_if_fini $rp21 192.0.2.2/28 2001:db8:2::2/64
+	simple_if_fini $rp2 203.0.113.1/24 2001:db8:4::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:4::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:4::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:4::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	rp1=${NETIFS[p2]}
+
+	rp11=${NETIFS[p3]}
+	rp21=${NETIFS[p4]}
+
+	rp12=${NETIFS[p5]}
+	rp22=${NETIFS[p6]}
+
+	rp2=${NETIFS[p7]}
+
+	h2=${NETIFS[p8]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:4::2
+}
+
+send_src_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:4::2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B "2001:db8:4::2-2001:db8:4::fd" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	ip vrf exec v$h1 sh -c \
+		"for _ in {1..16384}; do \
+			$PING6 -F 0 -c 1 -q 2001:db8:4::2 >/dev/null 2>&1; \
+		done"
+}
+
+send_src_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:4::2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:4::2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_rp11=$(link_stats_tx_packets_get $rp11)
+	local t0_rp12=$(link_stats_tx_packets_get $rp12)
+
+	$send_flows
+
+	local t1_rp11=$(link_stats_tx_packets_get $rp11)
+	local t1_rp12=$(link_stats_tx_packets_get $rp12)
+
+	local d_rp11=$((t1_rp11 - t0_rp11))
+	local d_rp12=$((t1_rp12 - t0_rp12))
+
+	local diff=$((d_rp12 - d_rp11))
+	local sum=$((d_rp11 + d_rp12))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d_rp11 / $d_rp12"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 custom multipath hash tests"
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 3
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0001
+	custom_hash_test "Source IP" "balanced" send_src_ipv4
+	custom_hash_test "Source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0002
+	custom_hash_test "Destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0010
+	custom_hash_test "Source port" "balanced" send_src_udp4
+	custom_hash_test "Source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0020
+	custom_hash_test "Destination port" "balanced" send_dst_udp4
+	custom_hash_test "Destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 custom multipath hash tests"
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 3
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0001
+	custom_hash_test "Source IP" "balanced" send_src_ipv6
+	custom_hash_test "Source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0002
+	custom_hash_test "Destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0008
+	custom_hash_test "Flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0010
+	custom_hash_test "Source port" "balanced" send_src_udp6
+	custom_hash_test "Source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0020
+	custom_hash_test "Destination port" "balanced" send_dst_udp6
+	custom_hash_test "Destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+	custom_hash_v4
+	custom_hash_v6
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/devlink_lib.sh b/tools/testing/selftests/net/forwarding/devlink_lib.sh
new file mode 100644
index 000000000000..18afa89ebbcc
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/devlink_lib.sh
@@ -0,0 +1,598 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+##############################################################################
+# Defines
+
+if [[ ! -v DEVLINK_DEV ]]; then
+	DEVLINK_DEV=$(devlink port show "${NETIFS[p1]:-$NETIF_NO_CABLE}" -j \
+			     | jq -r '.port | keys[]' | cut -d/ -f-2)
+	if [ -z "$DEVLINK_DEV" ]; then
+		echo "SKIP: ${NETIFS[p1]} has no devlink device registered for it"
+		exit $ksft_skip
+	fi
+	if [[ "$(echo $DEVLINK_DEV | grep -c pci)" -eq 0 ]]; then
+		echo "SKIP: devlink device's bus is not PCI"
+		exit $ksft_skip
+	fi
+
+	DEVLINK_VIDDID=$(lspci -s $(echo $DEVLINK_DEV | cut -d"/" -f2) \
+			 -n | cut -d" " -f3)
+elif [[ ! -z "$DEVLINK_DEV" ]]; then
+	devlink dev show $DEVLINK_DEV &> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "SKIP: devlink device \"$DEVLINK_DEV\" not found"
+		exit $ksft_skip
+	fi
+fi
+
+##############################################################################
+# Sanity checks
+
+devlink help 2>&1 | grep resource &> /dev/null
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing devlink resource support"
+	exit $ksft_skip
+fi
+
+devlink help 2>&1 | grep trap &> /dev/null
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing devlink trap support"
+	exit $ksft_skip
+fi
+
+devlink dev help 2>&1 | grep info &> /dev/null
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 too old, missing devlink dev info support"
+	exit $ksft_skip
+fi
+
+##############################################################################
+# Devlink helpers
+
+devlink_resource_names_to_path()
+{
+	local resource
+	local path=""
+
+	for resource in "${@}"; do
+		if [ "$path" == "" ]; then
+			path="$resource"
+		else
+			path="${path}/$resource"
+		fi
+	done
+
+	echo "$path"
+}
+
+devlink_resource_get()
+{
+	local name=$1
+	local resource_name=.[][\"$DEVLINK_DEV\"]
+
+	resource_name="$resource_name | .[] | select (.name == \"$name\")"
+
+	shift
+	for resource in "${@}"; do
+		resource_name="${resource_name} | .[\"resources\"][] | \
+			       select (.name == \"$resource\")"
+	done
+
+	devlink -j resource show "$DEVLINK_DEV" | jq "$resource_name"
+}
+
+devlink_resource_size_get()
+{
+	local size=$(devlink_resource_get "$@" | jq '.["size_new"]')
+
+	if [ "$size" == "null" ]; then
+		devlink_resource_get "$@" | jq '.["size"]'
+	else
+		echo "$size"
+	fi
+}
+
+devlink_resource_size_set()
+{
+	local new_size=$1
+	local path
+
+	shift
+	path=$(devlink_resource_names_to_path "$@")
+	devlink resource set "$DEVLINK_DEV" path "$path" size "$new_size"
+	check_err $? "Failed setting path $path to size $size"
+}
+
+devlink_resource_occ_get()
+{
+	devlink_resource_get "$@" | jq '.["occ"]'
+}
+
+devlink_reload()
+{
+	local still_pending
+
+	devlink dev reload "$DEVLINK_DEV" &> /dev/null
+	check_err $? "Failed reload"
+
+	still_pending=$(devlink resource show "$DEVLINK_DEV" | \
+			grep -c "size_new")
+	check_err $still_pending "Failed reload - There are still unset sizes"
+
+	udevadm settle
+}
+
+declare -A DEVLINK_ORIG
+
+# Changing pool type from static to dynamic causes reinterpretation of threshold
+# values. They therefore need to be saved before pool type is changed, then the
+# pool type can be changed, and then the new values need to be set up. Therefore
+# instead of saving the current state implicitly in the _set call, provide
+# functions for all three primitives: save, set, and restore.
+
+devlink_port_pool_threshold()
+{
+	local port=$1; shift
+	local pool=$1; shift
+
+	devlink sb port pool show $port pool $pool -j \
+		| jq '.port_pool."'"$port"'"[].threshold'
+}
+
+devlink_port_pool_th_save()
+{
+	local port=$1; shift
+	local pool=$1; shift
+	local key="port_pool($port,$pool).threshold"
+
+	DEVLINK_ORIG[$key]=$(devlink_port_pool_threshold $port $pool)
+}
+
+devlink_port_pool_th_set()
+{
+	local port=$1; shift
+	local pool=$1; shift
+	local th=$1; shift
+
+	devlink sb port pool set $port pool $pool th $th
+}
+
+devlink_port_pool_th_restore()
+{
+	local port=$1; shift
+	local pool=$1; shift
+	local key="port_pool($port,$pool).threshold"
+	local -a orig=(${DEVLINK_ORIG[$key]})
+
+	if [[ -z $orig ]]; then
+		echo "WARNING: Mismatched devlink_port_pool_th_restore"
+	else
+		devlink sb port pool set $port pool $pool th $orig
+	fi
+}
+
+devlink_pool_size_thtype()
+{
+	local pool=$1; shift
+
+	devlink sb pool show "$DEVLINK_DEV" pool $pool -j \
+	    | jq -r '.pool[][] | (.size, .thtype)'
+}
+
+devlink_pool_size_thtype_save()
+{
+	local pool=$1; shift
+	local key="pool($pool).size_thtype"
+
+	DEVLINK_ORIG[$key]=$(devlink_pool_size_thtype $pool)
+}
+
+devlink_pool_size_thtype_set()
+{
+	local pool=$1; shift
+	local thtype=$1; shift
+	local size=$1; shift
+
+	devlink sb pool set "$DEVLINK_DEV" pool $pool size $size thtype $thtype
+}
+
+devlink_pool_size_thtype_restore()
+{
+	local pool=$1; shift
+	local key="pool($pool).size_thtype"
+	local -a orig=(${DEVLINK_ORIG[$key]})
+
+	if [[ -z ${orig[0]} ]]; then
+		echo "WARNING: Mismatched devlink_pool_size_thtype_restore"
+	else
+		devlink sb pool set "$DEVLINK_DEV" pool $pool \
+			size ${orig[0]} thtype ${orig[1]}
+	fi
+}
+
+devlink_tc_bind_pool_th()
+{
+	local port=$1; shift
+	local tc=$1; shift
+	local dir=$1; shift
+
+	devlink sb tc bind show $port tc $tc type $dir -j \
+	    | jq -r '.tc_bind[][] | (.pool, .threshold)'
+}
+
+devlink_tc_bind_pool_th_save()
+{
+	local port=$1; shift
+	local tc=$1; shift
+	local dir=$1; shift
+	local key="tc_bind($port,$dir,$tc).pool_th"
+
+	DEVLINK_ORIG[$key]=$(devlink_tc_bind_pool_th $port $tc $dir)
+}
+
+devlink_tc_bind_pool_th_set()
+{
+	local port=$1; shift
+	local tc=$1; shift
+	local dir=$1; shift
+	local pool=$1; shift
+	local th=$1; shift
+
+	devlink sb tc bind set $port tc $tc type $dir pool $pool th $th
+}
+
+devlink_tc_bind_pool_th_restore()
+{
+	local port=$1; shift
+	local tc=$1; shift
+	local dir=$1; shift
+	local key="tc_bind($port,$dir,$tc).pool_th"
+	local -a orig=(${DEVLINK_ORIG[$key]})
+
+	if [[ -z ${orig[0]} ]]; then
+		echo "WARNING: Mismatched devlink_tc_bind_pool_th_restore"
+	else
+		devlink sb tc bind set $port tc $tc type $dir \
+			pool ${orig[0]} th ${orig[1]}
+	fi
+}
+
+devlink_traps_num_get()
+{
+	devlink -j trap | jq '.[]["'$DEVLINK_DEV'"] | length'
+}
+
+devlink_traps_get()
+{
+	devlink -j trap | jq -r '.[]["'$DEVLINK_DEV'"][].name'
+}
+
+devlink_trap_type_get()
+{
+	local trap_name=$1; shift
+
+	devlink -j trap show $DEVLINK_DEV trap $trap_name \
+		| jq -r '.[][][].type'
+}
+
+devlink_trap_action_set()
+{
+	local trap_name=$1; shift
+	local action=$1; shift
+
+	# Pipe output to /dev/null to avoid expected warnings.
+	devlink trap set $DEVLINK_DEV trap $trap_name \
+		action $action &> /dev/null
+}
+
+devlink_trap_action_get()
+{
+	local trap_name=$1; shift
+
+	devlink -j trap show $DEVLINK_DEV trap $trap_name \
+		| jq -r '.[][][].action'
+}
+
+devlink_trap_group_get()
+{
+	devlink -j trap show $DEVLINK_DEV trap $trap_name \
+		| jq -r '.[][][].group'
+}
+
+devlink_trap_metadata_test()
+{
+	local trap_name=$1; shift
+	local metadata=$1; shift
+
+	devlink -jv trap show $DEVLINK_DEV trap $trap_name \
+		| jq -e '.[][][].metadata | contains(["'$metadata'"])' \
+		&> /dev/null
+}
+
+devlink_trap_rx_packets_get()
+{
+	local trap_name=$1; shift
+
+	devlink -js trap show $DEVLINK_DEV trap $trap_name \
+		| jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_rx_bytes_get()
+{
+	local trap_name=$1; shift
+
+	devlink -js trap show $DEVLINK_DEV trap $trap_name \
+		| jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_drop_packets_get()
+{
+	local trap_name=$1; shift
+
+	devlink -js trap show $DEVLINK_DEV trap $trap_name \
+		| jq '.[][][]["stats"]["rx"]["dropped"]'
+}
+
+devlink_trap_stats_idle_test()
+{
+	local trap_name=$1; shift
+	local t0_packets t0_bytes
+	local t1_packets t1_bytes
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t0_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	sleep 1
+
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+	t1_bytes=$(devlink_trap_rx_bytes_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+devlink_trap_drop_stats_idle_test()
+{
+	local trap_name=$1; shift
+	local t0_packets t0_bytes
+
+	t0_packets=$(devlink_trap_drop_packets_get $trap_name)
+
+	sleep 1
+
+	t1_packets=$(devlink_trap_drop_packets_get $trap_name)
+
+	if [[ $t0_packets -eq $t1_packets ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+devlink_traps_enable_all()
+{
+	local trap_name
+
+	for trap_name in $(devlink_traps_get); do
+		devlink_trap_action_set $trap_name "trap"
+	done
+}
+
+devlink_traps_disable_all()
+{
+	for trap_name in $(devlink_traps_get); do
+		devlink_trap_action_set $trap_name "drop"
+	done
+}
+
+devlink_trap_groups_get()
+{
+	devlink -j trap group | jq -r '.[]["'$DEVLINK_DEV'"][].name'
+}
+
+devlink_trap_group_action_set()
+{
+	local group_name=$1; shift
+	local action=$1; shift
+
+	# Pipe output to /dev/null to avoid expected warnings.
+	devlink trap group set $DEVLINK_DEV group $group_name action $action \
+		&> /dev/null
+}
+
+devlink_trap_group_rx_packets_get()
+{
+	local group_name=$1; shift
+
+	devlink -js trap group show $DEVLINK_DEV group $group_name \
+		| jq '.[][][]["stats"]["rx"]["packets"]'
+}
+
+devlink_trap_group_rx_bytes_get()
+{
+	local group_name=$1; shift
+
+	devlink -js trap group show $DEVLINK_DEV group $group_name \
+		| jq '.[][][]["stats"]["rx"]["bytes"]'
+}
+
+devlink_trap_group_stats_idle_test()
+{
+	local group_name=$1; shift
+	local t0_packets t0_bytes
+	local t1_packets t1_bytes
+
+	t0_packets=$(devlink_trap_group_rx_packets_get $group_name)
+	t0_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+	sleep 1
+
+	t1_packets=$(devlink_trap_group_rx_packets_get $group_name)
+	t1_bytes=$(devlink_trap_group_rx_bytes_get $group_name)
+
+	if [[ $t0_packets -eq $t1_packets && $t0_bytes -eq $t1_bytes ]]; then
+		return 0
+	else
+		return 1
+	fi
+}
+
+devlink_trap_exception_test()
+{
+	local trap_name=$1; shift
+	local group_name
+
+	group_name=$(devlink_trap_group_get $trap_name)
+
+	devlink_trap_stats_idle_test $trap_name
+	check_fail $? "Trap stats idle when packets should have been trapped"
+
+	devlink_trap_group_stats_idle_test $group_name
+	check_fail $? "Trap group idle when packets should have been trapped"
+}
+
+devlink_trap_drop_test()
+{
+	local trap_name=$1; shift
+	local dev=$1; shift
+	local handle=$1; shift
+	local group_name
+
+	group_name=$(devlink_trap_group_get $trap_name)
+
+	# This is the common part of all the tests. It checks that stats are
+	# initially idle, then non-idle after changing the trap action and
+	# finally idle again. It also makes sure the packets are dropped and
+	# never forwarded.
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle with initial drop action"
+	devlink_trap_group_stats_idle_test $group_name
+	check_err $? "Trap group stats not idle with initial drop action"
+
+	devlink_trap_action_set $trap_name "trap"
+	devlink_trap_stats_idle_test $trap_name
+	check_fail $? "Trap stats idle after setting action to trap"
+	devlink_trap_group_stats_idle_test $group_name
+	check_fail $? "Trap group stats idle after setting action to trap"
+
+	devlink_trap_action_set $trap_name "drop"
+
+	devlink_trap_stats_idle_test $trap_name
+	check_err $? "Trap stats not idle after setting action to drop"
+	devlink_trap_group_stats_idle_test $group_name
+	check_err $? "Trap group stats not idle after setting action to drop"
+
+	tc_check_packets "dev $dev egress" $handle 0
+	check_err $? "Packets were not dropped"
+}
+
+devlink_trap_drop_cleanup()
+{
+	local mz_pid=$1; shift
+	local dev=$1; shift
+	local proto=$1; shift
+	local pref=$1; shift
+	local handle=$1; shift
+
+	kill_process $mz_pid
+	tc filter del dev $dev egress protocol $proto pref $pref handle $handle flower
+}
+
+devlink_trap_stats_check()
+{
+	local trap_name=$1; shift
+	local send_one="$@"
+	local t0_packets
+	local t1_packets
+
+	t0_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	$send_one && sleep 1
+
+	t1_packets=$(devlink_trap_rx_packets_get $trap_name)
+
+	[[ $t1_packets -ne $t0_packets ]]
+}
+
+devlink_trap_stats_test()
+{
+	local test_name=$1; shift
+
+	RET=0
+
+	devlink_trap_stats_check "$@"
+	check_err $? "Trap stats did not increase"
+
+	log_test "$test_name"
+}
+
+devlink_trap_policers_num_get()
+{
+	devlink -j -p trap policer show | jq '.[]["'$DEVLINK_DEV'"] | length'
+}
+
+devlink_trap_policer_rate_get()
+{
+	local policer_id=$1; shift
+
+	devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
+		| jq '.[][][]["rate"]'
+}
+
+devlink_trap_policer_burst_get()
+{
+	local policer_id=$1; shift
+
+	devlink -j -p trap policer show $DEVLINK_DEV policer $policer_id \
+		| jq '.[][][]["burst"]'
+}
+
+devlink_trap_policer_rx_dropped_get()
+{
+	local policer_id=$1; shift
+
+	devlink -j -p -s trap policer show $DEVLINK_DEV policer $policer_id \
+		| jq '.[][][]["stats"]["rx"]["dropped"]'
+}
+
+devlink_trap_group_policer_get()
+{
+	local group_name=$1; shift
+
+	devlink -j -p trap group show $DEVLINK_DEV group $group_name \
+		| jq '.[][][]["policer"]'
+}
+
+devlink_port_by_netdev()
+{
+	local if_name=$1
+
+	devlink -j port show $if_name | jq -e '.[] | keys' | jq -r '.[]'
+}
+
+devlink_cpu_port_get()
+{
+	local cpu_dl_port_num=$(devlink port list | grep "$DEVLINK_DEV" |
+				grep cpu | cut -d/ -f3 | cut -d: -f1 |
+				sed -n '1p')
+
+	echo "$DEVLINK_DEV/$cpu_dl_port_num"
+}
+
+devlink_cell_size_get()
+{
+	devlink sb pool show "$DEVLINK_DEV" pool 0 -j \
+	    | jq '.pool[][].cell_size'
+}
+
+devlink_pool_size_get()
+{
+	devlink sb show "$DEVLINK_DEV" -j | jq '.[][][]["size"]'
+}
diff --git a/tools/testing/selftests/net/forwarding/dual_vxlan_bridge.sh b/tools/testing/selftests/net/forwarding/dual_vxlan_bridge.sh
new file mode 100755
index 000000000000..68ee92df3e07
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/dual_vxlan_bridge.sh
@@ -0,0 +1,367 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+                               +----------------------+
+# | H1 (vrf)           |                               |             H2 (vrf) |
+# |    + h1.10         |                               |  + h2.20             |
+# |    | 192.0.2.1/28  |                               |  | 192.0.2.2/28      |
+# |    |               |                               |  |                   |
+# |    + $h1           |                               |  + $h2               |
+# |    |               |                               |  |                   |
+# +----|---------------+                               +--|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|--------------------+
+# | SW |                                                  |                    |
+# | +--|-------------------------------+ +----------------|------------------+ |
+# | |  + $swp1         BR1 (802.1ad)   | | BR2 (802.1d)   + $swp2            | |
+# | |    vid 100 pvid untagged         | |                |                  | |
+# | |                                  | |                + $swp2.20         | |
+# | |                                  | |                                   | |
+# | |  + vx100 (vxlan)                 | |  + vx200 (vxlan)                  | |
+# | |    local 192.0.2.17              | |    local 192.0.2.17               | |
+# | |    remote 192.0.2.34             | |    remote 192.0.2.50              | |
+# | |    id 1000 dstport $VXPORT       | |    id 2000 dstport $VXPORT        | |
+# | |    vid 100 pvid untagged         | |                                   | |
+# | +--------------------------------- + +-----------------------------------+ |
+# |                                                                            |
+# |  192.0.2.32/28 via 192.0.2.18                                              |
+# |  192.0.2.48/28 via 192.0.2.18                                              |
+# |                                                                            |
+# |    + $rp1                                                                  |
+# |    | 192.0.2.17/28                                                         |
+# +----|-----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRP2 (vrf) |
+# |    + $rp2                                                   |
+# |      192.0.2.18/28                                          |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)      |
+# |    | 192.0.2.33/28                         | 192.0.2.49/28  |
+# +----|---------------------------------------|----------------+
+#      |                                       |
+# +----|------------------------------+   +----|------------------------------+
+# |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
+# |      192.0.2.34/28                |   |      192.0.2.50/28                |
+# |                                   |   |                                   |
+# |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
+# |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
+# |                                   |   |                                   |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# | |                 BR3 (802.1ad) | |   | |                  BR3 (802.1d) | |
+# | |  + vx100 (vxlan)              | |   | |  + vx200 (vxlan)              | |
+# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
+# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
+# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
+# | |    id 1000 dstport $VXPORT    | |   | |    id 2000 dstport $VXPORT    | |
+# | |    vid 100 pvid untagged      | |   | |                               | |
+# | |                               | |   | |  + w1.20                      | |
+# | |                               | |   | |  |                            | |
+# | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
+# | |  | vid 100 pvid untagged      | |   | |  |                            | |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# |    |                              |   |    |                              |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# | |  |                  VW2 (vrf) | |   | |  |                  VW2 (vrf) | |
+# | |  + w2 (veth)                  | |   | |  + w2 (veth)                  | |
+# | |  |                            | |   | |  |                            | |
+# | |  |                            | |   | |  |                            | |
+# | |  + w2.10                      | |   | |  + w2.20                      | |
+# | |    192.0.2.3/28               | |   | |    192.0.2.4/28               | |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# +-----------------------------------+   +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+    "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+	vlan_create $h2 20 v$h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 192.0.2.17/28
+
+	ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+	ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+	ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+	ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+	ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+	#### BR1 ####
+	ip link add name br1 type bridge vlan_filtering 1 \
+		vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	#### BR2 ####
+	ip link add name br2 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br2 address $(mac_get $swp2)
+	ip link set dev br2 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+
+	#### VX100 ####
+	ip link add name vx100 type vxlan id 1000 local 192.0.2.17 \
+		dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx100 up
+
+	ip link set dev vx100 master br1
+	bridge vlan add vid 100 dev vx100 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 100 dev $swp1 pvid untagged
+
+	#### VX200 ####
+	ip link add name vx200 type vxlan id 2000 local 192.0.2.17 \
+		dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx200 up
+
+	ip link set dev vx200 master br2
+
+	ip link set dev $swp2 up
+	ip link add name $swp2.20 link $swp2 type vlan id 20
+	ip link set dev $swp2.20 master br2
+	ip link set dev $swp2.20 up
+
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx200 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx200 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	ip link set dev vx200 nomaster
+	ip link set dev vx200 down
+	ip link del dev vx200
+
+	ip link del dev $swp2.20
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 100 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vx100 nomaster
+	ip link set dev vx100 down
+	ip link del dev vx100
+
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br2 down
+	ip link del dev br2
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 192.0.2.18/28
+	__simple_if_init v1 v$rp2 192.0.2.33/28
+	__simple_if_init v3 v$rp2 192.0.2.49/28
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 192.0.2.49/28
+	__simple_if_fini v1 192.0.2.33/28
+	simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local vxlan_name=$1; shift
+	local vxlan_id=$1; shift
+	local vlan_id=$1; shift
+	local host_addr=$1; shift
+	local nh_addr=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/28
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br3 type bridge vlan_filtering 0
+	ip link set dev br3 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br3
+	ip link set dev w1 up
+
+	ip link add name $vxlan_name type vxlan id $vxlan_id local $in_addr \
+		dstport "$VXPORT"
+	ip link set dev $vxlan_name up
+	bridge fdb append dev $vxlan_name 00:00:00:00:00:00 dst 192.0.2.17 self
+	bridge fdb append dev $vxlan_name 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev $vxlan_name master br3
+	tc qdisc add dev $vxlan_name clsact
+
+	simple_if_init w2
+	vlan_create w2 $vlan_id vw2 $host_addr/28
+
+	ip route add 192.0.2.16/28 nexthop via $nh_addr
+	ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 192.0.2.34 192.0.2.50 vx100 1000 10 192.0.2.3 \
+	      192.0.2.33
+
+	in_ns ns1 bridge vlan add vid 100 dev vx100 pvid untagged
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 192.0.2.50 192.0.2.34 vx200 2000 20 192.0.2.4 \
+	      192.0.2.49
+
+	in_ns ns2 ip link add name w1.20 link w1 type vlan id 20
+	in_ns ns2 ip link set dev w1.20 master br3
+	in_ns ns2 ip link set dev w1.20 up
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.3 ": local->remote 1 through VxLAN with an 802.1ad bridge"
+	ping_test $h2 192.0.2.4 ": local->remote 2 through VxLAN with an 802.1d bridge"
+}
+
+test_all()
+{
+	echo "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/fib_offload_lib.sh b/tools/testing/selftests/net/forwarding/fib_offload_lib.sh
new file mode 100644
index 000000000000..1b3b46292179
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/fib_offload_lib.sh
@@ -0,0 +1,873 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Various helpers and tests to verify FIB offload.
+
+__fib_trap_check()
+{
+	local ns=$1; shift
+	local family=$1; shift
+	local route=$1; shift
+	local should_fail=$1; shift
+	local ret
+
+	ip -n $ns -j -p -$family route show $route \
+		| jq -e '.[]["flags"] | contains(["trap"])' &> /dev/null
+	ret=$?
+	if [[ $should_fail == "true" ]]; then
+		if [[ $ret -ne 0 ]]; then
+			return 0
+		else
+			return 1
+		fi
+	fi
+
+	return $ret
+}
+
+fib_trap_check()
+{
+	local ns=$1; shift
+	local family=$1; shift
+	local route=$1; shift
+	local should_fail=$1; shift
+
+	busywait 5000 __fib_trap_check $ns $family "$route" $should_fail
+}
+
+fib4_trap_check()
+{
+	local ns=$1; shift
+	local route=$1; shift
+	local should_fail=$1; shift
+
+	fib_trap_check $ns 4 "$route" $should_fail
+}
+
+fib6_trap_check()
+{
+	local ns=$1; shift
+	local route=$1; shift
+	local should_fail=$1; shift
+
+	fib_trap_check $ns 6 "$route" $should_fail
+}
+
+fib_ipv4_identical_routes_test()
+{
+	local ns=$1; shift
+	local i
+
+	RET=0
+
+	for i in $(seq 1 3); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+	done
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route append 192.0.2.0/24 dev dummy2 tos 0 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 tos 0 metric 1024" true
+	check_err $? "Appended route in hardware when should not"
+
+	ip -n $ns route prepend 192.0.2.0/24 dev dummy3 tos 0 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy3 tos 0 metric 1024" false
+	check_err $? "Prepended route not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
+	check_err $? "Route was not replaced in hardware by prepended one"
+
+	log_test "IPv4 identical routes"
+
+	for i in $(seq 1 3); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv4_tos_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 8 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 8 metric 1024" false
+	check_err $? "Highest TOS route not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0 metric 1024" true
+	check_err $? "Lowest TOS route still in hardware when should not"
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 4 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 4 metric 1024" true
+	check_err $? "Middle TOS route in hardware when should not"
+
+	log_test "IPv4 routes with TOS"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_metric_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1022
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1022" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" true
+	check_err $? "Highest metric route still in hardware when should not"
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1023
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1023" true
+	check_err $? "Middle metric route in hardware when should not"
+
+	log_test "IPv4 routes with metric"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replace_test()
+{
+	local ns=$1; shift
+	local i
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+	done
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
+	check_err $? "Replacement route not in hardware when should"
+
+	# Add a route with an higher metric and make sure that replacing it
+	# does not affect the lower metric one.
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
+	ip -n $ns route replace 192.0.2.0/24 dev dummy2 metric 1025
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy2 metric 1025" true
+	check_err $? "Highest metric route in hardware when should not"
+
+	log_test "IPv4 route replace"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv4_delete_test()
+{
+	local ns=$1; shift
+	local metric
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	# Insert multiple routes with the same prefix and length and varying
+	# metrics. Make sure that throughout delete operations the lowest
+	# metric route is the one in hardware.
+	for metric in $(seq 1024 1026); do
+		ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
+	done
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1024
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	ip -n $ns route del 192.0.2.0/24 dev dummy1 metric 1026
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" false
+	check_err $? "Sole route not in hardware when should"
+
+	log_test "IPv4 route delete"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_plen_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	# Add two routes with the same key and different prefix length and
+	# make sure both are in hardware. It can be verified that both are
+	# sharing the same leaf by checking the /proc/net/fib_trie
+	ip -n $ns route add 192.0.2.0/24 dev dummy1
+	ip -n $ns route add 192.0.2.0/25 dev dummy1
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
+	check_err $? "/24 not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
+	check_err $? "/25 not in hardware when should"
+
+	log_test "IPv4 routes with different prefix length"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_metric_test()
+{
+	local ns=$1; shift
+	local devlink_dev=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1024
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 metric 1025
+
+	devlink -N $ns dev reload $devlink_dev
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 metric 1025" true
+	check_err $? "Highest metric route in hardware when should not"
+
+	log_test "IPv4 routes replay - metric"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_tos_test()
+{
+	local ns=$1; shift
+	local devlink_dev=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 0
+	ip -n $ns route add 192.0.2.0/24 dev dummy1 tos 4
+
+	devlink -N $ns dev reload $devlink_dev
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 4" false
+	check_err $? "Highest TOS route not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1 tos 0" true
+	check_err $? "Lowest TOS route in hardware when should not"
+
+	log_test "IPv4 routes replay - TOS"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_replay_plen_test()
+{
+	local ns=$1; shift
+	local devlink_dev=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 192.0.2.0/24 dev dummy1
+	ip -n $ns route add 192.0.2.0/25 dev dummy1
+
+	devlink -N $ns dev reload $devlink_dev
+
+	fib4_trap_check $ns "192.0.2.0/24 dev dummy1" false
+	check_err $? "/24 not in hardware when should"
+
+	fib4_trap_check $ns "192.0.2.0/25 dev dummy1" false
+	check_err $? "/25 not in hardware when should"
+
+	log_test "IPv4 routes replay - prefix length"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv4_flush_test()
+{
+	local ns=$1; shift
+	local metric
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	# Exercise the routes flushing code paths by inserting various
+	# prefix routes on a netdev and then deleting it.
+	for metric in $(seq 1 20); do
+		ip -n $ns route add 192.0.2.0/24 dev dummy1 metric $metric
+	done
+
+	ip -n $ns link del dev dummy1
+
+	log_test "IPv4 routes flushing"
+}
+
+fib_ipv6_add_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+	done
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route append 2001:db8:1::/64 dev dummy2 metric 1024
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" true
+	check_err $? "Route in hardware when should not"
+
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware after appending route"
+
+	log_test "IPv6 single route add"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_metric_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	ip -n $ns link add name dummy1 type dummy
+	ip -n $ns link set dev dummy1 up
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1022
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1022" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" true
+	check_err $? "Highest metric route still in hardware when should not"
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1023
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1023" true
+	check_err $? "Middle metric route in hardware when should not"
+
+	log_test "IPv6 routes with metric"
+
+	ip -n $ns link del dev dummy1
+}
+
+fib_ipv6_append_single_test()
+{
+	local ns=$1; shift
+
+	# When an IPv6 multipath route is added without the 'nexthop' keyword,
+	# different code paths are taken compared to when the keyword is used.
+	# This test tries to verify the former.
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1024
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1024
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware after appending"
+
+	ip -n $ns route add 2001:db8:10::/64 via 2001:db8:1::2 metric 1025
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Route in hardware when should not"
+
+	ip -n $ns route append 2001:db8:10::/64 via 2001:db8:2::2 metric 1025
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Route in hardware when should not after appending"
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	log_test "IPv6 append single route without 'nexthop' keyword"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_replace_single_test()
+{
+	local ns=$1; shift
+	local i
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+	done
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1024
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1024
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
+	check_err $? "Replacement route not in hardware when should"
+
+	# Add a route with an higher metric and make sure that replacing it
+	# does not affect the lower metric one.
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1 metric 1025
+	ip -n $ns route replace 2001:db8:1::/64 dev dummy2 metric 1025
+
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2 metric 1025" true
+	check_err $? "Highest metric route in hardware when should not"
+
+	log_test "IPv6 single route replace"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_metric_multipath_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1022 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1022" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1023 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" true
+	check_err $? "Highest metric route still in hardware when should not"
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1023" true
+	check_err $? "Middle metric route in hardware when should not"
+
+	log_test "IPv6 multipath routes with metric"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_append_multipath_test()
+{
+	local ns=$1; shift
+
+	RET=0
+
+	for i in $(seq 1 3); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route append 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:2::2 dev dummy2 \
+		nexthop via 2001:db8:3::2 dev dummy3
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware after appending"
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Route in hardware when should not"
+
+	ip -n $ns route append 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:2::2 dev dummy2 \
+		nexthop via 2001:db8:3::2 dev dummy3
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Route in hardware when should not after appending"
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+
+	log_test "IPv6 append multipath route with 'nexthop' keyword"
+
+	for i in $(seq 1 3); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_replace_multipath_test()
+{
+	local ns=$1; shift
+	local i
+
+	RET=0
+
+	for i in $(seq 1 3); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route replace 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:3::2 dev dummy3
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Replacement route not in hardware when should"
+
+	# Add a route with an higher metric and make sure that replacing it
+	# does not affect the lower metric one.
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route replace 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:3::2 dev dummy3
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Lowest metric route not in hardware when should"
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Highest metric route in hardware when should not"
+
+	log_test "IPv6 multipath route replace"
+
+	for i in $(seq 1 3); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_append_multipath_to_single_test()
+{
+	local ns=$1; shift
+
+	# Test that when the first route in the leaf is not a multipath route
+	# and we try to append a multipath route with the same metric to it, it
+	# is not notified.
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware when should"
+
+	ip -n $ns route append 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy2 metric 1024" true
+	check_err $? "Route in hardware when should not"
+
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware after append"
+
+	log_test "IPv6 append multipath route to non-multipath route"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_delete_single_test()
+{
+	local ns=$1; shift
+
+	# Test various deletion scenarios, where only a single route is
+	# deleted from the FIB node.
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	# Test deletion of a single route when it is the only route in the FIB
+	# node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+	log_test "IPv6 delete sole single route"
+
+	# Test that deletion of last route does not affect the first one.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1024" false
+	check_err $? "Route not in hardware after deleting higher metric route"
+
+	log_test "IPv6 delete single route not in hardware"
+
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+	# Test that first route is replaced by next single route in the FIB
+	# node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
+	check_err $? "Route not in hardware after deleting lowest metric route"
+
+	log_test "IPv6 delete single route - replaced by single"
+
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+	# Test that first route is replaced by next multipath route in the FIB
+	# node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1024
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1024
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
+	check_err $? "Route not in hardware after deleting lowest metric route"
+
+	log_test "IPv6 delete single route - replaced by multipath"
+
+	ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+	# Test deletion of a single nexthop from a multipath route.
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route del 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware after deleting a single nexthop"
+
+	log_test "IPv6 delete single nexthop"
+
+	ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_delete_multipath_test()
+{
+	local ns=$1; shift
+
+	# Test various deletion scenarios, where an entire multipath route is
+	# deleted from the FIB node.
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	# Test deletion of a multipath route when it is the only route in the
+	# FIB node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+	log_test "IPv6 delete sole multipath route"
+
+	# Test that deletion of last route does not affect the first one.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "Route not in hardware after deleting higher metric route"
+
+	log_test "IPv6 delete multipath route not in hardware"
+
+	ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+	# Test that first route is replaced by next single route in the FIB
+	# node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route add 2001:db8:10::/64 dev dummy1 metric 1025
+	ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+	fib6_trap_check $ns "2001:db8:10::/64 dev dummy1 metric 1025" false
+	check_err $? "Route not in hardware after deleting lowest metric route"
+
+	log_test "IPv6 delete multipath route - replaced by single"
+
+	ip -n $ns route del 2001:db8:10::/64 dev dummy1 metric 1025
+
+	# Test that first route is replaced by next multipath route in the FIB
+	# node.
+	RET=0
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route del 2001:db8:10::/64 metric 1024
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" false
+	check_err $? "Route not in hardware after deleting lowest metric route"
+
+	log_test "IPv6 delete multipath route - replaced by multipath"
+
+	ip -n $ns route del 2001:db8:10::/64 metric 1025
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_replay_single_test()
+{
+	local ns=$1; shift
+	local devlink_dev=$1; shift
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+	done
+
+	ip -n $ns route add 2001:db8:1::/64 dev dummy1
+	ip -n $ns route append 2001:db8:1::/64 dev dummy2
+
+	devlink -N $ns dev reload $devlink_dev
+
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy1" false
+	check_err $? "First route not in hardware when should"
+
+	fib6_trap_check $ns "2001:db8:1::/64 dev dummy2" true
+	check_err $? "Second route in hardware when should not"
+
+	log_test "IPv6 routes replay - single route"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
+
+fib_ipv6_replay_multipath_test()
+{
+	local ns=$1; shift
+	local devlink_dev=$1; shift
+
+	RET=0
+
+	for i in $(seq 1 2); do
+		ip -n $ns link add name dummy$i type dummy
+		ip -n $ns link set dev dummy$i up
+		ip -n $ns address add 2001:db8:$i::1/64 dev dummy$i
+	done
+
+	ip -n $ns route add 2001:db8:10::/64 metric 1024 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+	ip -n $ns route add 2001:db8:10::/64 metric 1025 \
+		nexthop via 2001:db8:1::2 dev dummy1 \
+		nexthop via 2001:db8:2::2 dev dummy2
+
+	devlink -N $ns dev reload $devlink_dev
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1024" false
+	check_err $? "First route not in hardware when should"
+
+	fib6_trap_check $ns "2001:db8:10::/64 metric 1025" true
+	check_err $? "Second route in hardware when should not"
+
+	log_test "IPv6 routes replay - multipath route"
+
+	for i in $(seq 1 2); do
+		ip -n $ns link del dev dummy$i
+	done
+}
diff --git a/tools/testing/selftests/net/forwarding/forwarding.config.sample b/tools/testing/selftests/net/forwarding/forwarding.config.sample
new file mode 100644
index 000000000000..f1ca95e79a65
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/forwarding.config.sample
@@ -0,0 +1,30 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Topology description. p1 looped back to p2, p3 to p4 and so on.
+
+NETIFS=(
+	[p1]=veth0
+	[p2]=veth1
+	[p3]=veth2
+	[p4]=veth3
+	[p5]=veth4
+	[p6]=veth5
+	[p7]=veth6
+	[p8]=veth7
+	[p9]=veth8
+	[p10]=veth9
+)
+
+# Port that does not have a cable connected.
+NETIF_NO_CABLE=eth8
+
+##############################################################################
+# In addition to the topology-related variables, it is also possible to override
+# in this file other variables that net/lib.sh, net/forwarding/lib.sh or other
+# libraries or selftests use. E.g.:
+
+PING6=ping6
+MZ=mausezahn
+WAIT_TIME=5
diff --git a/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh
new file mode 100755
index 000000000000..b4f17a5bbc61
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_custom_multipath_hash.sh
@@ -0,0 +1,464 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution when there are multiple paths between an IPv4 GRE
+# tunnel. The tunnel carries IPv4 and IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|------------------+
+# | SW1                     |                  |
+# |                    $ol1 +                  |
+# |         198.51.100.1/24                    |
+# |        2001:db8:1::1/64                    |
+# |                                            |
+# |   + g1 (gre)                               |
+# |     loc=192.0.2.1                          |
+# |     rem=192.0.2.2 --.                      |
+# |     tos=inherit     |                      |
+# |                     v                      |
+# |                     + $ul1                 |
+# |                     | 192.0.2.17/28        |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# | SW2                 |                      |
+# |               $ul21 +                      |
+# |       192.0.2.18/28 |                      |
+# |                     |                      |
+# !   __________________+___                   |
+# |  /                      \                  |
+# |  |                      |                  |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan) |
+# |  | 192.0.2.33/28        | 192.0.2.49/28    |
+# |  |                      |                  |
+# +--|----------------------|------------------+
+#    |                      |
+# +--|----------------------|------------------+
+# |  |                      |                  |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan) |
+# |  | 192.0.2.34/28        | 192.0.2.50/28    |
+# |  |                      |                  |
+# |  \__________________+___/                  |
+# |                     |                      |
+# |                     |                      |
+# |               $ul31 +                      |
+# |       192.0.2.65/28 |                  SW3 |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# |                     + $ul4                 |
+# |                     ^ 192.0.2.66/28        |
+# |                     |                      |
+# |   + g2 (gre)        |                      |
+# |     loc=192.0.2.2   |                      |
+# |     rem=192.0.2.1 --'                      |
+# |     tos=inherit                            |
+# |                                            |
+# |                    $ol4 +                  |
+# |          203.0.113.1/24 |                  |
+# |        2001:db8:2::1/64 |              SW4 |
+# +-------------------------|------------------+
+#                           |
+# +-------------------------|------+
+# |                         |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:2::{2-fd}/64     H2 |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 192.0.2.17/28
+
+	tunnel_create g1 gre 192.0.2.1 192.0.2.2 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 192.0.2.1/32
+	ip route add vrf v$ol1 192.0.2.2/32 via 192.0.2.18
+
+	ip route add vrf v$ol1 203.0.113.0/24 dev g1
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 203.0.113.0/24
+
+	ip route del vrf v$ol1 192.0.2.2/32
+	__simple_if_fini g1 192.0.2.1/32
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 192.0.2.17/28
+	simple_if_fini $ol1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 192.0.2.18/28
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 192.0.2.33/28
+	vlan_create $ul22 222 v$ul21 192.0.2.49/28
+
+	ip route add vrf v$ul21 192.0.2.1/32 via 192.0.2.17
+	ip route add vrf v$ul21 192.0.2.2/32 \
+	   nexthop via 192.0.2.34 \
+	   nexthop via 192.0.2.50
+}
+
+sw2_destroy()
+{
+	ip route del vrf v$ul21 192.0.2.2/32
+	ip route del vrf v$ul21 192.0.2.1/32
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 192.0.2.18/28
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 192.0.2.65/28
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 192.0.2.34/28
+	vlan_create $ul32 222 v$ul31 192.0.2.50/28
+
+	ip route add vrf v$ul31 192.0.2.2/32 via 192.0.2.66
+	ip route add vrf v$ul31 192.0.2.1/32 \
+	   nexthop via 192.0.2.33 \
+	   nexthop via 192.0.2.49
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip route del vrf v$ul31 192.0.2.1/32
+	ip route del vrf v$ul31 192.0.2.2/32
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 192.0.2.65/28
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 203.0.113.1/24 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 192.0.2.66/28
+
+	tunnel_create g2 gre 192.0.2.2 192.0.2.1 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 192.0.2.2/32
+	ip route add vrf v$ol4 192.0.2.1/32 via 192.0.2.65
+
+	ip route add vrf v$ol4 198.51.100.0/24 dev g2
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+	ip route del vrf v$ol4 198.51.100.0/24
+
+	ip route del vrf v$ol4 192.0.2.1/32
+	__simple_if_fini g2 192.0.2.2/32
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 192.0.2.66/28
+	simple_if_fini $ol4 203.0.113.1/24 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:2::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:2::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+send_src_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:2::2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B "2001:db8:2::2-2001:db8:2::fd" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	ip vrf exec v$h1 sh -c \
+		"for _ in {1..16384}; do \
+			$PING6 -F 0 -c 1 -q 2001:db8:2::2 >/dev/null 2>&1; \
+		done"
+}
+
+send_src_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	$send_flows
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+
+	local diff=$((d222 - d111))
+	local sum=$((d111 + d222))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d111 / $d222"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv4
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp4
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp4
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv6
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0200
+	custom_hash_test "Inner flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Inner flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp6
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv4.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp6
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 3
+
+	custom_hash_v4
+	custom_hash_v6
+
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh b/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh
new file mode 100755
index 000000000000..efca6114a3ce
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_inner_v4_multipath.sh
@@ -0,0 +1,305 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv4
+# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# | 192.0.3.{2-62}/24 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|------------------------+
+# | SW1               |                        |
+# |              $ol1 +                        |
+# |      192.0.3.1/24                          |
+# |                                            |
+# |  + g1 (gre)                                |
+# |    loc=192.0.2.65                          |
+# |    rem=192.0.2.66 --.                      |
+# |    tos=inherit      |                      |
+# |                     v                      |
+# |                     + $ul1                 |
+# |                     | 192.0.2.129/28       |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# | SW2                 |                      |
+# |               $ul21 +                      |
+# |      192.0.2.130/28                        |
+# |                   |                        |
+# !   ________________|_____                   |
+# |  /                      \                  |
+# |  |                      |                  |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan) |
+# |  | 192.0.2.145/28       | 192.0.2.161/28   |
+# |  |                      |                  |
+# +--|----------------------|------------------+
+#    |                      |
+# +--|----------------------|------------------+
+# |  |                      |                  |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan) |
+# |  | 192.0.2.146/28       | 192.0.2.162/28   |
+# |  |                      |                  |
+# |  \______________________/                  |
+# |                   |                        |
+# |                   |                        |
+# |               $ul31 +                      |
+# |      192.0.2.177/28 |                  SW3 |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# |                     + $ul4                 |
+# |                     ^ 192.0.2.178/28       |
+# |                     |                      |
+# |  + g2 (gre)         |                      |
+# |    loc=192.0.2.66   |                      |
+# |    rem=192.0.2.65 --'                      |
+# |    tos=inherit                             |
+# |                                            |
+# |               $ol4 +                       |
+# |       192.0.4.1/24 |                   SW4 |
+# +--------------------|-----------------------+
+#                      |
+# +--------------------|---------+
+# |                    |         |
+# |                $h2 +         |
+# |  192.0.4.{2-62}/24        H2 |
+# +------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	multipath_ipv4
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.3.2/24
+	ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
+	simple_if_fini $h1 192.0.3.2/24
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 192.0.3.1/24
+	__simple_if_init $ul1 v$ol1 192.0.2.129/28
+
+	tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 192.0.2.65/32
+	ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+	ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
+}
+
+sw1_destroy()
+{
+	ip route del vrf v$ol1 192.0.4.0/24
+
+	ip route del vrf v$ol1 192.0.2.66/32
+	__simple_if_fini g1 192.0.2.65/32
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 192.0.2.129/28
+	simple_if_fini $ol1 192.0.3.1/24
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 192.0.2.130/28
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 192.0.2.145/28
+	vlan_create $ul22 222 v$ul21 192.0.2.161/28
+
+	ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
+	ip route add vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 \
+	   nexthop via 192.0.2.162
+}
+
+sw2_destroy()
+{
+	ip route del vrf v$ul21 192.0.2.66/32
+	ip route del vrf v$ul21 192.0.2.65/32
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 192.0.2.130/28
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 192.0.2.177/28
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 192.0.2.146/28
+	vlan_create $ul32 222 v$ul31 192.0.2.162/28
+
+	ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
+	ip route add vrf v$ul31 192.0.2.65/32 \
+	   nexthop via 192.0.2.145 \
+	   nexthop via 192.0.2.161
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip route del vrf v$ul31 192.0.2.65/32
+	ip route del vrf v$ul31 192.0.2.66/32
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 192.0.2.177/28
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 192.0.4.1/24
+	__simple_if_init $ul4 v$ol4 192.0.2.178/28
+
+	tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 192.0.2.66/32
+	ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
+
+	ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
+}
+
+sw4_destroy()
+{
+	ip route del vrf v$ol4 192.0.3.0/24
+
+	ip route del vrf v$ol4 192.0.2.65/32
+	__simple_if_fini g2 192.0.2.66/32
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 192.0.2.178/28
+	simple_if_fini $ol4 192.0.4.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.4.2/24
+	ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
+	simple_if_fini $h2 192.0.4.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath4_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 2
+	ip route replace vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 weight $weight1 \
+	   nexthop via 192.0.2.162 weight $weight2
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
+	       -d $MZ_DELAY -c 50 -t udp "sp=1024,dp=1024"
+	sleep 1
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip route replace vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 \
+	   nexthop via 192.0.2.162
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.4.2
+}
+
+multipath_ipv4()
+{
+	log_info "Running IPv4 over GRE over IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh b/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh
new file mode 100755
index 000000000000..a71ad39fc0c3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_inner_v6_multipath.sh
@@ -0,0 +1,306 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv4
+# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |  2001:db8:1::2/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|------------------------+
+# | SW1               |                        |
+# |              $ol1 +                        |
+# |  2001:db8:1::1/64                          |
+# |                                            |
+# |  + g1 (gre)                                |
+# |    loc=192.0.2.65                          |
+# |    rem=192.0.2.66 --.                      |
+# |    tos=inherit      |                      |
+# |                     v                      |
+# |                     + $ul1                 |
+# |                     | 192.0.2.129/28       |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# | SW2                 |                      |
+# |               $ul21 +                      |
+# |      192.0.2.130/28                        |
+# |                   |                        |
+# !   ________________|_____                   |
+# |  /                      \                  |
+# |  |                      |                  |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan) |
+# |  | 192.0.2.145/28       | 192.0.2.161/28   |
+# |  |                      |                  |
+# +--|----------------------|------------------+
+#    |                      |
+# +--|----------------------|------------------+
+# |  |                      |                  |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan) |
+# |  | 192.0.2.146/28       | 192.0.2.162/28   |
+# |  |                      |                  |
+# |  \______________________/                  |
+# |                   |                        |
+# |                   |                        |
+# |               $ul31 +                      |
+# |      192.0.2.177/28 |                  SW3 |
+# +---------------------|----------------------+
+#                       |
+# +---------------------|----------------------+
+# |                     + $ul4                 |
+# |                     ^ 192.0.2.178/28       |
+# |                     |                      |
+# |  + g2 (gre)         |                      |
+# |    loc=192.0.2.66   |                      |
+# |    rem=192.0.2.65 --'                      |
+# |    tos=inherit                             |
+# |                                            |
+# |               $ol4 +                       |
+# |   2001:db8:2::1/64 |                   SW4 |
+# +--------------------|-----------------------+
+#                      |
+# +--------------------|---------+
+# |                    |         |
+# |                $h2 +         |
+# |   2001:db8:2::2/64        H2 |
+# +------------------------------+
+
+ALL_TESTS="
+	ping_ipv6
+	multipath_ipv6
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::2/64
+	ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+	simple_if_fini $h1 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 192.0.2.129/28
+
+	tunnel_create g1 gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 192.0.2.65/32
+	ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+
+	ip route del vrf v$ol1 192.0.2.66/32
+	__simple_if_fini g1 192.0.2.65/32
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 192.0.2.129/28
+	simple_if_fini $ol1 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 192.0.2.130/28
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 192.0.2.145/28
+	vlan_create $ul22 222 v$ul21 192.0.2.161/28
+
+	ip route add vrf v$ul21 192.0.2.65/32 via 192.0.2.129
+	ip route add vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 \
+	   nexthop via 192.0.2.162
+}
+
+sw2_destroy()
+{
+	ip route del vrf v$ul21 192.0.2.66/32
+	ip route del vrf v$ul21 192.0.2.65/32
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 192.0.2.130/28
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 192.0.2.177/28
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 192.0.2.146/28
+	vlan_create $ul32 222 v$ul31 192.0.2.162/28
+
+	ip route add vrf v$ul31 192.0.2.66/32 via 192.0.2.178
+	ip route add vrf v$ul31 192.0.2.65/32 \
+	   nexthop via 192.0.2.145 \
+	   nexthop via 192.0.2.161
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip route del vrf v$ul31 192.0.2.65/32
+	ip route del vrf v$ul31 192.0.2.66/32
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 192.0.2.177/28
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 192.0.2.178/28
+
+	tunnel_create g2 gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 192.0.2.66/32
+	ip route add vrf v$ol4 192.0.2.65/32 via 192.0.2.177
+
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+
+	ip route del vrf v$ol4 192.0.2.65/32
+	__simple_if_fini g2 192.0.2.66/32
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 192.0.2.178/28
+	simple_if_fini $ol4 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 2001:db8:2::2/64
+	ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+	simple_if_fini $h2 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath6_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 2
+	ip route replace vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 weight $weight1 \
+	   nexthop via 192.0.2.162 weight $weight2
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::3e" \
+	       -B "2001:db8:2::2-2001:db8:2::3e" \
+	       -d $MZ_DELAY -c 50 -t udp "sp=1024,dp=1024"
+	sleep 1
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip route replace vrf v$ul21 192.0.2.66/32 \
+	   nexthop via 192.0.2.146 \
+	   nexthop via 192.0.2.162
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv6()
+{
+	ping_test $h1 2001:db8:2::2
+}
+
+multipath_ipv6()
+{
+	log_info "Running IPv6 over GRE over IPv4 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_multipath.sh b/tools/testing/selftests/net/forwarding/gre_multipath.sh
new file mode 100755
index 000000000000..57531c1d884d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_multipath.sh
@@ -0,0 +1,257 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when a wECMP route forwards traffic to two GRE
+# tunnels.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |      192.0.2.1/28 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|------------------------+
+# | SW1               |                        |
+# |              $ol1 +                        |
+# |      192.0.2.2/28                          |
+# |                                            |
+# |  + g1a (gre)          + g1b (gre)          |
+# |    loc=192.0.2.65       loc=192.0.2.81     |
+# |    rem=192.0.2.66 --.   rem=192.0.2.82 --. |
+# |    tos=inherit      |   tos=inherit      | |
+# |  .------------------'                    | |
+# |  |                    .------------------' |
+# |  v                    v                    |
+# |  + $ul1.111 (vlan)    + $ul1.222 (vlan)    |
+# |  | 192.0.2.129/28     | 192.0.2.145/28     |
+# |   \                  /                     |
+# |    \________________/                      |
+# |            |                               |
+# |            + $ul1                          |
+# +------------|-------------------------------+
+#              |
+# +------------|-------------------------------+
+# | SW2        + $ul2                          |
+# |     _______|________                       |
+# |    /                \                      |
+# |   /                  \                     |
+# |  + $ul2.111 (vlan)    + $ul2.222 (vlan)    |
+# |  ^ 192.0.2.130/28     ^ 192.0.2.146/28     |
+# |  |                    |                    |
+# |  |                    '------------------. |
+# |  '------------------.                    | |
+# |  + g2a (gre)        | + g2b (gre)        | |
+# |    loc=192.0.2.66   |   loc=192.0.2.82   | |
+# |    rem=192.0.2.65 --'   rem=192.0.2.81 --' |
+# |    tos=inherit          tos=inherit        |
+# |                                            |
+# |              $ol2 +                        |
+# |     192.0.2.17/28 |                        |
+# +-------------------|------------------------+
+#                     |
+# +-------------------|-----+
+# | H2                |     |
+# |               $h2 +     |
+# |     192.0.2.18/28       |
+# +-------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	multipath_ipv4
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 192.0.2.2/28
+	__simple_if_init $ul1 v$ol1
+	vlan_create $ul1 111 v$ol1 192.0.2.129/28
+	vlan_create $ul1 222 v$ol1 192.0.2.145/28
+
+	tunnel_create g1a gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+	__simple_if_init g1a v$ol1 192.0.2.65/32
+	ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+	tunnel_create g1b gre 192.0.2.81 192.0.2.82 tos inherit dev v$ol1
+	__simple_if_init g1b v$ol1 192.0.2.81/32
+	ip route add vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+
+	ip route add vrf v$ol1 192.0.2.16/28 \
+	   nexthop dev g1a \
+	   nexthop dev g1b
+}
+
+sw1_destroy()
+{
+	ip route del vrf v$ol1 192.0.2.16/28
+
+	ip route del vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+	__simple_if_fini g1b 192.0.2.81/32
+	tunnel_destroy g1b
+
+	ip route del vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+	__simple_if_fini g1a 192.0.2.65/32
+	tunnel_destroy g1a
+
+	vlan_destroy $ul1 222
+	vlan_destroy $ul1 111
+	__simple_if_fini $ul1
+	simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_create()
+{
+	simple_if_init $ol2 192.0.2.17/28
+	__simple_if_init $ul2 v$ol2
+	vlan_create $ul2 111 v$ol2 192.0.2.130/28
+	vlan_create $ul2 222 v$ol2 192.0.2.146/28
+
+	tunnel_create g2a gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol2
+	__simple_if_init g2a v$ol2 192.0.2.66/32
+	ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+
+	tunnel_create g2b gre 192.0.2.82 192.0.2.81 tos inherit dev v$ol2
+	__simple_if_init g2b v$ol2 192.0.2.82/32
+	ip route add vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+
+	ip route add vrf v$ol2 192.0.2.0/28 \
+	   nexthop dev g2a \
+	   nexthop dev g2b
+
+	tc qdisc add dev $ul2 clsact
+	tc filter add dev $ul2 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul2 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw2_destroy()
+{
+	tc qdisc del dev $ul2 clsact
+
+	ip route del vrf v$ol2 192.0.2.0/28
+
+	ip route del vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+	__simple_if_fini g2b 192.0.2.82/32
+	tunnel_destroy g2b
+
+	ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+	__simple_if_fini g2a 192.0.2.66/32
+	tunnel_destroy g2a
+
+	vlan_destroy $ul2 222
+	vlan_destroy $ul2 111
+	__simple_if_fini $ul2
+	simple_if_fini $ol2 192.0.2.17/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.18/28
+	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	simple_if_fini $h2 192.0.2.18/28
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath4_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+	ip route replace vrf v$ol1 192.0.2.16/28 \
+	   nexthop dev g1a weight $weight1 \
+	   nexthop dev g1b weight $weight2
+
+	local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -q -p 64 -A 192.0.2.1 -B 192.0.2.18 \
+	       -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+
+	local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip route replace vrf v$ol1 192.0.2.16/28 \
+	   nexthop dev g1a \
+	   nexthop dev g1b
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.18
+}
+
+multipath_ipv4()
+{
+	log_info "Running IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_multipath_nh.sh b/tools/testing/selftests/net/forwarding/gre_multipath_nh.sh
new file mode 100755
index 000000000000..7d5b2b9cc133
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_multipath_nh.sh
@@ -0,0 +1,319 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when a wECMP route forwards traffic to two GRE
+# tunnels.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |      192.0.2.1/28 |     |
+# |  2001:db8:1::1/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|------------------------+
+# | SW1               |                        |
+# |              $ol1 +                        |
+# |      192.0.2.2/28                          |
+# |  2001:db8:1::2/64                          |
+# |                                            |
+# |  + g1a (gre)          + g1b (gre)          |
+# |    loc=192.0.2.65       loc=192.0.2.81     |
+# |    rem=192.0.2.66 --.   rem=192.0.2.82 --. |
+# |    tos=inherit      |   tos=inherit      | |
+# |  .------------------'                    | |
+# |  |                    .------------------' |
+# |  v                    v                    |
+# |  + $ul1.111 (vlan)    + $ul1.222 (vlan)    |
+# |  | 192.0.2.129/28     | 192.0.2.145/28     |
+# |   \                  /                     |
+# |    \________________/                      |
+# |            |                               |
+# |            + $ul1                          |
+# +------------|-------------------------------+
+#              |
+# +------------|-------------------------------+
+# | SW2        + $ul2                          |
+# |     _______|________                       |
+# |    /                \                      |
+# |   /                  \                     |
+# |  + $ul2.111 (vlan)    + $ul2.222 (vlan)    |
+# |  ^ 192.0.2.130/28     ^ 192.0.2.146/28     |
+# |  |                    |                    |
+# |  |                    '------------------. |
+# |  '------------------.                    | |
+# |  + g2a (gre)        | + g2b (gre)        | |
+# |    loc=192.0.2.66   |   loc=192.0.2.82   | |
+# |    rem=192.0.2.65 --'   rem=192.0.2.81 --' |
+# |    tos=inherit          tos=inherit        |
+# |                                            |
+# |              $ol2 +                        |
+# |     192.0.2.17/28 |                        |
+# |  2001:db8:2::1/64 |                        |
+# +-------------------|------------------------+
+#                     |
+# +-------------------|-----+
+# | H2                |     |
+# |               $h2 +     |
+# |     192.0.2.18/28       |
+# |  2001:db8:2::2/64       |
+# +-------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	multipath_ipv4
+	multipath_ipv6
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	ip route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 192.0.2.2/28 2001:db8:1::2/64
+	__simple_if_init $ul1 v$ol1
+	vlan_create $ul1 111 v$ol1 192.0.2.129/28
+	vlan_create $ul1 222 v$ol1 192.0.2.145/28
+
+	tunnel_create g1a gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+	__simple_if_init g1a v$ol1 192.0.2.65/32
+	ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+	tunnel_create g1b gre 192.0.2.81 192.0.2.82 tos inherit dev v$ol1
+	__simple_if_init g1b v$ol1 192.0.2.81/32
+	ip route add vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+
+	ip -6 nexthop add id 101 dev g1a
+	ip -6 nexthop add id 102 dev g1b
+	ip nexthop add id 103 group 101/102
+
+	ip route add vrf v$ol1 192.0.2.16/28 nhid 103
+	ip route add vrf v$ol1 2001:db8:2::/64 nhid 103
+}
+
+sw1_destroy()
+{
+	ip route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 192.0.2.16/28
+
+	ip nexthop del id 103
+	ip -6 nexthop del id 102
+	ip -6 nexthop del id 101
+
+	ip route del vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+	__simple_if_fini g1b 192.0.2.81/32
+	tunnel_destroy g1b
+
+	ip route del vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+	__simple_if_fini g1a 192.0.2.65/32
+	tunnel_destroy g1a
+
+	vlan_destroy $ul1 222
+	vlan_destroy $ul1 111
+	__simple_if_fini $ul1
+	simple_if_fini $ol1 192.0.2.2/28 2001:db8:1::2/64
+}
+
+sw2_create()
+{
+	simple_if_init $ol2 192.0.2.17/28 2001:db8:2::1/64
+	__simple_if_init $ul2 v$ol2
+	vlan_create $ul2 111 v$ol2 192.0.2.130/28
+	vlan_create $ul2 222 v$ol2 192.0.2.146/28
+
+	tunnel_create g2a gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol2
+	__simple_if_init g2a v$ol2 192.0.2.66/32
+	ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+
+	tunnel_create g2b gre 192.0.2.82 192.0.2.81 tos inherit dev v$ol2
+	__simple_if_init g2b v$ol2 192.0.2.82/32
+	ip route add vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+
+	ip -6 nexthop add id 201 dev g2a
+	ip -6 nexthop add id 202 dev g2b
+	ip nexthop add id 203 group 201/202
+
+	ip route add vrf v$ol2 192.0.2.0/28 nhid 203
+	ip route add vrf v$ol2 2001:db8:1::/64 nhid 203
+
+	tc qdisc add dev $ul2 clsact
+	tc filter add dev $ul2 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul2 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw2_destroy()
+{
+	tc qdisc del dev $ul2 clsact
+
+	ip route del vrf v$ol2 2001:db8:1::/64
+	ip route del vrf v$ol2 192.0.2.0/28
+
+	ip nexthop del id 203
+	ip -6 nexthop del id 202
+	ip -6 nexthop del id 201
+
+	ip route del vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+	__simple_if_fini g2b 192.0.2.82/32
+	tunnel_destroy g2b
+
+	ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+	__simple_if_fini g2a 192.0.2.66/32
+	tunnel_destroy g2a
+
+	vlan_destroy $ul2 222
+	vlan_destroy $ul2 111
+	__simple_if_fini $ul2
+	simple_if_fini $ol2 192.0.2.17/28 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.18/28 2001:db8:2::2/64
+	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	ip route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	simple_if_fini $h2 192.0.2.18/28 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath4_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+	ip nexthop replace id 103 group 101,$weight1/102,$weight2
+
+	local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -q -p 64 -A 192.0.2.1 -B 192.0.2.18 \
+	       -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+
+	local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip nexthop replace id 103 group 101/102
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 1
+	ip nexthop replace id 103 group 101,$weight1/102,$weight2
+
+	local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	ip vrf exec v$h1 \
+		$MZ $h1 -6 -q -p 64 -A 2001:db8:1::1 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+
+	local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip nexthop replace id 103 group 101/102
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.18
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+multipath_ipv4()
+{
+	log_info "Running IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+}
+
+multipath_ipv6()
+{
+	log_info "Running IPv6 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/gre_multipath_nh_res.sh b/tools/testing/selftests/net/forwarding/gre_multipath_nh_res.sh
new file mode 100755
index 000000000000..370f9925302d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/gre_multipath_nh_res.sh
@@ -0,0 +1,323 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when a wECMP route forwards traffic to two GRE
+# tunnels.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |      192.0.2.1/28 |     |
+# |  2001:db8:1::1/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|------------------------+
+# | SW1               |                        |
+# |              $ol1 +                        |
+# |      192.0.2.2/28                          |
+# |  2001:db8:1::2/64                          |
+# |                                            |
+# |  + g1a (gre)          + g1b (gre)          |
+# |    loc=192.0.2.65       loc=192.0.2.81     |
+# |    rem=192.0.2.66 --.   rem=192.0.2.82 --. |
+# |    tos=inherit      |   tos=inherit      | |
+# |  .------------------'                    | |
+# |  |                    .------------------' |
+# |  v                    v                    |
+# |  + $ul1.111 (vlan)    + $ul1.222 (vlan)    |
+# |  | 192.0.2.129/28     | 192.0.2.145/28     |
+# |   \                  /                     |
+# |    \________________/                      |
+# |            |                               |
+# |            + $ul1                          |
+# +------------|-------------------------------+
+#              |
+# +------------|-------------------------------+
+# | SW2        + $ul2                          |
+# |     _______|________                       |
+# |    /                \                      |
+# |   /                  \                     |
+# |  + $ul2.111 (vlan)    + $ul2.222 (vlan)    |
+# |  ^ 192.0.2.130/28     ^ 192.0.2.146/28     |
+# |  |                    |                    |
+# |  |                    '------------------. |
+# |  '------------------.                    | |
+# |  + g2a (gre)        | + g2b (gre)        | |
+# |    loc=192.0.2.66   |   loc=192.0.2.82   | |
+# |    rem=192.0.2.65 --'   rem=192.0.2.81 --' |
+# |    tos=inherit          tos=inherit        |
+# |                                            |
+# |              $ol2 +                        |
+# |     192.0.2.17/28 |                        |
+# |  2001:db8:2::1/64 |                        |
+# +-------------------|------------------------+
+#                     |
+# +-------------------|-----+
+# | H2                |     |
+# |               $h2 +     |
+# |     192.0.2.18/28       |
+# |  2001:db8:2::2/64       |
+# +-------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	multipath_ipv4
+	multipath_ipv6
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	ip route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 192.0.2.2/28 2001:db8:1::2/64
+	__simple_if_init $ul1 v$ol1
+	vlan_create $ul1 111 v$ol1 192.0.2.129/28
+	vlan_create $ul1 222 v$ol1 192.0.2.145/28
+
+	tunnel_create g1a gre 192.0.2.65 192.0.2.66 tos inherit dev v$ol1
+	__simple_if_init g1a v$ol1 192.0.2.65/32
+	ip route add vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+
+	tunnel_create g1b gre 192.0.2.81 192.0.2.82 tos inherit dev v$ol1
+	__simple_if_init g1b v$ol1 192.0.2.81/32
+	ip route add vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+
+	ip -6 nexthop add id 101 dev g1a
+	ip -6 nexthop add id 102 dev g1b
+	ip nexthop add id 103 group 101/102 type resilient buckets 512 \
+		idle_timer 0
+
+	ip route add vrf v$ol1 192.0.2.16/28 nhid 103
+	ip route add vrf v$ol1 2001:db8:2::/64 nhid 103
+}
+
+sw1_destroy()
+{
+	ip route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 192.0.2.16/28
+
+	ip nexthop del id 103
+	ip -6 nexthop del id 102
+	ip -6 nexthop del id 101
+
+	ip route del vrf v$ol1 192.0.2.82/32 via 192.0.2.146
+	__simple_if_fini g1b 192.0.2.81/32
+	tunnel_destroy g1b
+
+	ip route del vrf v$ol1 192.0.2.66/32 via 192.0.2.130
+	__simple_if_fini g1a 192.0.2.65/32
+	tunnel_destroy g1a
+
+	vlan_destroy $ul1 222
+	vlan_destroy $ul1 111
+	__simple_if_fini $ul1
+	simple_if_fini $ol1 192.0.2.2/28 2001:db8:1::2/64
+}
+
+sw2_create()
+{
+	simple_if_init $ol2 192.0.2.17/28 2001:db8:2::1/64
+	__simple_if_init $ul2 v$ol2
+	vlan_create $ul2 111 v$ol2 192.0.2.130/28
+	vlan_create $ul2 222 v$ol2 192.0.2.146/28
+
+	tunnel_create g2a gre 192.0.2.66 192.0.2.65 tos inherit dev v$ol2
+	__simple_if_init g2a v$ol2 192.0.2.66/32
+	ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+
+	tunnel_create g2b gre 192.0.2.82 192.0.2.81 tos inherit dev v$ol2
+	__simple_if_init g2b v$ol2 192.0.2.82/32
+	ip route add vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+
+	ip -6 nexthop add id 201 dev g2a
+	ip -6 nexthop add id 202 dev g2b
+	ip nexthop add id 203 group 201/202 type resilient buckets 512 \
+		idle_timer 0
+
+	ip route add vrf v$ol2 192.0.2.0/28 nhid 203
+	ip route add vrf v$ol2 2001:db8:1::/64 nhid 203
+
+	tc qdisc add dev $ul2 clsact
+	tc filter add dev $ul2 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul2 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw2_destroy()
+{
+	tc qdisc del dev $ul2 clsact
+
+	ip route del vrf v$ol2 2001:db8:1::/64
+	ip route del vrf v$ol2 192.0.2.0/28
+
+	ip nexthop del id 203
+	ip -6 nexthop del id 202
+	ip -6 nexthop del id 201
+
+	ip route del vrf v$ol2 192.0.2.81/32 via 192.0.2.145
+	__simple_if_fini g2b 192.0.2.82/32
+	tunnel_destroy g2b
+
+	ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+	__simple_if_fini g2a 192.0.2.66/32
+	tunnel_destroy g2a
+
+	vlan_destroy $ul2 222
+	vlan_destroy $ul2 111
+	__simple_if_fini $ul2
+	simple_if_fini $ol2 192.0.2.17/28 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.18/28 2001:db8:2::2/64
+	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	ip route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	simple_if_fini $h2 192.0.2.18/28 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath4_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+	ip nexthop replace id 103 group 101,$weight1/102,$weight2 \
+		type resilient
+
+	local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -q -p 64 -A 192.0.2.1 -B 192.0.2.18 \
+	       -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+
+	local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip nexthop replace id 103 group 101/102 type resilient
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 1
+	ip nexthop replace id 103 group 101,$weight1/102,$weight2 \
+		type resilient
+
+	local t0_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	ip vrf exec v$h1 \
+		$MZ $h1 -6 -q -p 64 -A 2001:db8:1::1 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+
+	local t1_111=$(tc_rule_stats_get $ul2 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul2 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip nexthop replace id 103 group 101/102 type resilient
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.18
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+multipath_ipv4()
+{
+	log_info "Running IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+}
+
+multipath_ipv6()
+{
+	log_info "Running IPv6 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
new file mode 100755
index 000000000000..25036e38043c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6_forward_instats_vrf.sh
@@ -0,0 +1,174 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test ipv6 stats on the incoming if when forwarding with VRF
+
+ALL_TESTS="
+	ipv6_ping
+	ipv6_in_too_big_err
+	ipv6_in_hdr_err
+	ipv6_in_addr_err
+	ipv6_in_discard
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+require_command $TROUTE6
+
+h1_create()
+{
+	simple_if_init $h1 2001:1:1::2/64
+	ip -6 route add vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 2001:1:2::/64 via 2001:1:1::1
+	simple_if_fini $h1 2001:1:1::2/64
+}
+
+router_create()
+{
+	vrf_create router
+	__simple_if_init $rtr1 router 2001:1:1::1/64
+	__simple_if_init $rtr2 router 2001:1:2::1/64
+	mtu_set $rtr2 1280
+}
+
+router_destroy()
+{
+	mtu_restore $rtr2
+	__simple_if_fini $rtr2 2001:1:2::1/64
+	__simple_if_fini $rtr1 2001:1:1::1/64
+	vrf_destroy router
+}
+
+h2_create()
+{
+	simple_if_init $h2 2001:1:2::2/64
+	ip -6 route add vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+	mtu_set $h2 1280
+}
+
+h2_destroy()
+{
+	mtu_restore $h2
+	ip -6 route del vrf v$h2 2001:1:1::/64 via 2001:1:2::1
+	simple_if_fini $h2 2001:1:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rtr1=${NETIFS[p2]}
+
+	rtr2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	h1_create
+	router_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	router_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ipv6_in_too_big_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Send too big packets
+	ip vrf exec $vrf_name \
+		$PING6 -s 1300 -c 1 -w $PING_TIMEOUT 2001:1:2::2 &> /dev/null
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InTooBigErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InTooBigErrors"
+}
+
+ipv6_in_hdr_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Send packets with hop limit 1, easiest with traceroute6 as some ping6
+	# doesn't allow hop limit to be specified
+	ip vrf exec $vrf_name \
+		$TROUTE6 2001:1:2::2 &> /dev/null
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InHdrErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InHdrErrors"
+}
+
+ipv6_in_addr_err()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+	local vrf_name=$(master_name_get $h1)
+
+	# Disable forwarding temporary while sending the packet
+	sysctl -qw net.ipv6.conf.all.forwarding=0
+	ip vrf exec $vrf_name \
+		$PING6 -c 1 -w $PING_TIMEOUT 2001:1:2::2 &> /dev/null
+	sysctl -qw net.ipv6.conf.all.forwarding=1
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InAddrErrors)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InAddrErrors"
+}
+
+ipv6_in_discard()
+{
+	RET=0
+
+	local t0=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+	local vrf_name=$(master_name_get $h1)
+
+	# Add a policy to discard
+	ip xfrm policy add dst 2001:1:2::2/128 dir fwd action block
+	ip vrf exec $vrf_name \
+		$PING6 -c 1 -w $PING_TIMEOUT 2001:1:2::2 &> /dev/null
+	ip xfrm policy del dst 2001:1:2::2/128 dir fwd
+
+	local t1=$(ipv6_stats_get $rtr1 Ip6InDiscards)
+	test "$((t1 - t0))" -ne 0
+	check_err $?
+	log_test "Ip6InDiscards"
+}
+ipv6_ping()
+{
+	RET=0
+
+	ping6_test $h1 2001:1:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh b/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh
new file mode 100755
index 000000000000..b24acfa52a3a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_custom_multipath_hash.sh
@@ -0,0 +1,466 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test traffic distribution when there are multiple paths between an IPv6 GRE
+# tunnel. The tunnel carries IPv4 and IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |   198.51.100.{2-253}/24 |      |
+# |   2001:db8:1::{2-fd}/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------+
+# | SW1                     |                   |
+# |                    $ol1 +                   |
+# |         198.51.100.1/24                     |
+# |        2001:db8:1::1/64                     |
+# |                                             |
+# |+ g1 (ip6gre)                                |
+# |  loc=2001:db8:3::1                          |
+# |  rem=2001:db8:3::2 -.                       |
+# |     tos=inherit     |                       |
+# |                     v                       |
+# |                     + $ul1                  |
+# |                     | 2001:db8:10::1/64     |
+# +---------------------|-----------------------+
+#                       |
+# +---------------------|-----------------------+
+# | SW2                 |                       |
+# |               $ul21 +                       |
+# |   2001:db8:10::2/64 |                       |
+# |                     |                       |
+# !   __________________+___                    |
+# |  /                      \                   |
+# |  |                      |                   |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan)  |
+# |  | 2001:db8:11::1/64    | 2001:db8:12::1/64 |
+# |  |                      |                   |
+# +--|----------------------|-------------------+
+#    |                      |
+# +--|----------------------|-------------------+
+# |  |                      |                   |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan)  |
+# |  | 2001:db8:11::2/64    | 2001:db8:12::2/64 |
+# |  |                      |                   |
+# |  \__________________+___/                   |
+# |                     |                       |
+# |                     |                       |
+# |               $ul31 +                       |
+# |   2001:db8:13::1/64 |                   SW3 |
+# +---------------------|-----------------------+
+#                       |
+# +---------------------|-----------------------+
+# |                     + $ul4                  |
+# |                     ^ 2001:db8:13::2/64     |
+# |                     |                       |
+# |+ g2 (ip6gre)        |                       |
+# |  loc=2001:db8:3::2  |                       |
+# |  rem=2001:db8:3::1 -'                       |
+# |  tos=inherit                                |
+# |                                             |
+# |                    $ol4 +                   |
+# |          203.0.113.1/24 |                   |
+# |        2001:db8:2::1/64 |               SW4 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|------+
+# |                         |      |
+# |                     $h2 +      |
+# |    203.0.113.{2-253}/24        |
+# |   2001:db8:2::{2-fd}/64     H2 |
+# +--------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	custom_hash
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/24 2001:db8:1::2/64
+	ip route add vrf v$h1 default via 198.51.100.1 dev $h1
+	ip -6 route add vrf v$h1 default via 2001:db8:1::1 dev $h1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 default
+	ip route del vrf v$h1 default
+	simple_if_fini $h1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 198.51.100.1/24 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 2001:db8:10::1/64
+
+	tunnel_create g1 ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		dev v$ol1
+	__simple_if_init g1 v$ol1 2001:db8:3::1/128
+	ip route add vrf v$ol1 2001:db8:3::2/128 via 2001:db8:10::2
+
+	ip route add vrf v$ol1 203.0.113.0/24 dev g1
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 203.0.113.0/24
+
+	ip route del vrf v$ol1 2001:db8:3::2/128
+	__simple_if_fini g1 2001:db8:3::1/128
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 2001:db8:10::1/64
+	simple_if_fini $ol1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 2001:db8:10::2/64
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 2001:db8:11::1/64
+	vlan_create $ul22 222 v$ul21 2001:db8:12::1/64
+
+	ip -6 route add vrf v$ul21 2001:db8:3::1/128 via 2001:db8:10::1
+	ip -6 route add vrf v$ul21 2001:db8:3::2/128 \
+	   nexthop via 2001:db8:11::2 \
+	   nexthop via 2001:db8:12::2
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$ul21 2001:db8:3::2/128
+	ip -6 route del vrf v$ul21 2001:db8:3::1/128
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 2001:db8:10::2/64
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 2001:db8:13::1/64
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 2001:db8:11::2/64
+	vlan_create $ul32 222 v$ul31 2001:db8:12::2/64
+
+	ip -6 route add vrf v$ul31 2001:db8:3::2/128 via 2001:db8:13::2
+	ip -6 route add vrf v$ul31 2001:db8:3::1/128 \
+	   nexthop via 2001:db8:11::1 \
+	   nexthop via 2001:db8:12::1
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip -6 route del vrf v$ul31 2001:db8:3::1/128
+	ip -6 route del vrf v$ul31 2001:db8:3::2/128
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 2001:db8:13::1/64
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 203.0.113.1/24 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 2001:db8:13::2/64
+
+	tunnel_create g2 ip6gre 2001:db8:3::2 2001:db8:3::1 tos inherit \
+		dev v$ol4
+	__simple_if_init g2 v$ol4 2001:db8:3::2/128
+	ip -6 route add vrf v$ol4 2001:db8:3::1/128 via 2001:db8:13::1
+
+	ip route add vrf v$ol4 198.51.100.0/24 dev g2
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+	ip route del vrf v$ol4 198.51.100.0/24
+
+	ip -6 route del vrf v$ol4 2001:db8:3::1/128
+	__simple_if_fini g2 2001:db8:3::2/128
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 2001:db8:13::2/64
+	simple_if_fini $ol4 203.0.113.1/24 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.2/24 2001:db8:2::2/64
+	ip route add vrf v$h2 default via 203.0.113.1 dev $h2
+	ip -6 route add vrf v$h2 default via 2001:db8:2::1 dev $h2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 default
+	ip route del vrf v$h2 default
+	simple_if_fini $h2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 203.0.113.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+send_src_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A "198.51.100.2-198.51.100.253" -B 203.0.113.2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B "203.0.113.2-203.0.113.253" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_src_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp4()
+{
+	ip vrf exec v$h1 $MZ $h1 -q -p 64 \
+		-A 198.51.100.2 -B 203.0.113.2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+send_src_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A "2001:db8:1::2-2001:db8:1::fd" -B 2001:db8:2::2 \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_dst_ipv6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B "2001:db8:2::2-2001:db8:2::fd" \
+		-d $MZ_DELAY -c 50 -t udp "sp=20000,dp=30000"
+}
+
+send_flowlabel()
+{
+	# Generate 16384 echo requests, each with a random flow label.
+	ip vrf exec v$h1 sh -c \
+		"for _ in {1..16384}; do \
+			$PING6 -F 0 -c 1 -q 2001:db8:2::2 >/dev/null 2>&1; \
+		done"
+}
+
+send_src_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=0-32768,dp=30000"
+}
+
+send_dst_udp6()
+{
+	ip vrf exec v$h1 $MZ -6 $h1 -q -p 64 \
+		-A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "sp=20000,dp=0-32768"
+}
+
+custom_hash_test()
+{
+	local field="$1"; shift
+	local balanced="$1"; shift
+	local send_flows="$@"
+
+	RET=0
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	$send_flows
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+
+	local diff=$((d222 - d111))
+	local sum=$((d111 + d222))
+
+	local pct=$(echo "$diff / $sum * 100" | bc -l)
+	local is_balanced=$(echo "-20 <= $pct && $pct <= 20" | bc)
+
+	[[ ( $is_balanced -eq 1 && $balanced == "balanced" ) ||
+	   ( $is_balanced -eq 0 && $balanced == "unbalanced" ) ]]
+	check_err $? "Expected traffic to be $balanced, but it is not"
+
+	log_test "Multipath hash field: $field ($balanced)"
+	log_info "Packets sent on path1 / path2: $d111 / $d222"
+}
+
+custom_hash_v4()
+{
+	log_info "Running IPv4 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv4.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv4.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv4
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv4
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp4
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp4
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp4
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp4
+
+	sysctl_restore net.ipv4.neigh.default.gc_thresh3
+	sysctl_restore net.ipv4.neigh.default.gc_thresh2
+	sysctl_restore net.ipv4.neigh.default.gc_thresh1
+}
+
+custom_hash_v6()
+{
+	log_info "Running IPv6 overlay custom multipath hash tests"
+
+	# Prevent the neighbour table from overflowing, as different neighbour
+	# entries will be created on $ol4 when using different destination IPs.
+	sysctl_set net.ipv6.neigh.default.gc_thresh1 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh2 1024
+	sysctl_set net.ipv6.neigh.default.gc_thresh3 1024
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0040
+	custom_hash_test "Inner source IP" "balanced" send_src_ipv6
+	custom_hash_test "Inner source IP" "unbalanced" send_dst_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0080
+	custom_hash_test "Inner destination IP" "balanced" send_dst_ipv6
+	custom_hash_test "Inner destination IP" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0200
+	custom_hash_test "Inner flowlabel" "balanced" send_flowlabel
+	custom_hash_test "Inner flowlabel" "unbalanced" send_src_ipv6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0400
+	custom_hash_test "Inner source port" "balanced" send_src_udp6
+	custom_hash_test "Inner source port" "unbalanced" send_dst_udp6
+
+	sysctl_set net.ipv6.fib_multipath_hash_fields 0x0800
+	custom_hash_test "Inner destination port" "balanced" send_dst_udp6
+	custom_hash_test "Inner destination port" "unbalanced" send_src_udp6
+
+	sysctl_restore net.ipv6.neigh.default.gc_thresh3
+	sysctl_restore net.ipv6.neigh.default.gc_thresh2
+	sysctl_restore net.ipv6.neigh.default.gc_thresh1
+}
+
+custom_hash()
+{
+	# Test that when the hash policy is set to custom, traffic is
+	# distributed only according to the fields set in the
+	# fib_multipath_hash_fields sysctl.
+	#
+	# Each time set a different field and make sure traffic is only
+	# distributed when the field is changed in the packet stream.
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 3
+
+	custom_hash_v4
+	custom_hash_v6
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_flat.sh b/tools/testing/selftests/net/forwarding/ip6gre_flat.sh
new file mode 100755
index 000000000000..becc7c3fc809
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_flat.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel without key.
+# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
+# more details.
+
+ALL_TESTS="
+	gre_flat
+	gre_mtu_change
+	gre_flat_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create $ol1 $ul1
+	sw2_flat_create $ol2 $ul2
+}
+
+gre_flat()
+{
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change
+}
+
+gre_flat_remote_change()
+{
+	flat_remote_change
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 (new remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 (new remote)"
+
+	flat_remote_restore
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 (old remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_flat_key.sh b/tools/testing/selftests/net/forwarding/ip6gre_flat_key.sh
new file mode 100755
index 000000000000..e5335116a2fd
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_flat_key.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with key.
+# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
+# more details.
+
+ALL_TESTS="
+	gre_flat
+	gre_mtu_change
+	gre_flat_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create $ol1 $ul1 key 233
+	sw2_flat_create $ol2 $ul2 key 233
+}
+
+gre_flat()
+{
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with key"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with key"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change
+}
+
+gre_flat_remote_change()
+{
+	flat_remote_change
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with key (new remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with key (new remote)"
+
+	flat_remote_restore
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with key (old remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with key (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_flat_keys.sh b/tools/testing/selftests/net/forwarding/ip6gre_flat_keys.sh
new file mode 100755
index 000000000000..7e0cbfdefab0
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_flat_keys.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with keys.
+# This test uses flat topology for IP tunneling tests. See ip6gre_lib.sh for
+# more details.
+
+ALL_TESTS="
+	gre_flat
+	gre_mtu_change
+	gre_flat_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create $ol1 $ul1 ikey 111 okey 222
+	sw2_flat_create $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_flat()
+{
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with ikey/okey"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with ikey/okey"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change	gre
+}
+
+gre_flat_remote_change()
+{
+	flat_remote_change
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with ikey/okey (new remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with ikey/okey (new remote)"
+
+	flat_remote_restore
+
+	test_traffic_ip4ip6 "GRE flat IPv4-in-IPv6 with ikey/okey (old remote)"
+	test_traffic_ip6ip6 "GRE flat IPv6-in-IPv6 with ikey/okey (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_hier.sh b/tools/testing/selftests/net/forwarding/ip6gre_hier.sh
new file mode 100755
index 000000000000..e0844495f3d1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_hier.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ip6gre_lib.sh for more details.
+
+ALL_TESTS="
+	gre_hier
+	gre_mtu_change
+	gre_hier_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create $ol1 $ul1
+	sw2_hierarchical_create $ol2 $ul2
+}
+
+gre_hier()
+{
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+gre_hier_remote_change()
+{
+	hier_remote_change
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 (new remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 (new remote)"
+
+	hier_remote_restore
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 (old remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_hier_key.sh b/tools/testing/selftests/net/forwarding/ip6gre_hier_key.sh
new file mode 100755
index 000000000000..741bc9c928eb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_hier_key.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ip6gre_lib.sh for more details.
+
+ALL_TESTS="
+	gre_hier
+	gre_mtu_change
+	gre_hier_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create $ol1 $ul1 key 22
+	sw2_hierarchical_create $ol2 $ul2 key 22
+}
+
+gre_hier()
+{
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with key"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with key"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+gre_hier_remote_change()
+{
+	hier_remote_change
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with key (new remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with key (new remote)"
+
+	hier_remote_restore
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with key (old remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with key (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_hier_keys.sh b/tools/testing/selftests/net/forwarding/ip6gre_hier_keys.sh
new file mode 100755
index 000000000000..ad9eab4b1367
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_hier_keys.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ip6gre_lib.sh for more details.
+
+ALL_TESTS="
+	gre_hier
+	gre_mtu_change
+	gre_hier_remote_change
+"
+
+NUM_NETIFS=6
+source lib.sh
+source ip6gre_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create $ol1 $ul1 ikey 111 okey 222
+	sw2_hierarchical_create $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_hier()
+{
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with ikey/okey"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with ikey/okey"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+gre_hier_remote_change()
+{
+	hier_remote_change
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with ikey/okey (new remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with ikey/okey (new remote)"
+
+	hier_remote_restore
+
+	test_traffic_ip4ip6 "GRE hierarchical IPv4-in-IPv6 with ikey/okey (old remote)"
+	test_traffic_ip6ip6 "GRE hierarchical IPv6-in-IPv6 with ikey/okey (old remote)"
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh b/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh
new file mode 100755
index 000000000000..32d1461f37b7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_inner_v4_multipath.sh
@@ -0,0 +1,304 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv6
+# GRE tunnel. The tunnel carries IPv4 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# | 192.0.3.{2-62}/24 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-------------------------+
+# | SW1               |                         |
+# |              $ol1 +                         |
+# |      192.0.3.1/24                           |
+# |                                             |
+# |  + g1 (gre)                                 |
+# |    loc=2001:db8:40::1                       |
+# |    rem=2001:db8:40::2 --.                   |
+# |    tos=inherit          |                   |
+# |                         v                   |
+# |                         + $ul1              |
+# |                         | 2001:db8:80::1/64 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|-------------------+
+# | SW2                     |                   |
+# |                   $ul21 +                   |
+# |       2001:db8:80::2/64                     |
+# |                   |                         |
+# !   ________________|_____                    |
+# |  /                      \                   |
+# |  |                      |                   |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan)  |
+# |  | 2001:db8:81::1/64    | 2001:db8:82::1/64 |
+# |  |                      |                   |
+# +--|----------------------|-------------------+
+#    |                      |
+# +--|----------------------|-------------------+
+# |  |                      |                   |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan)  |
+# |  | 2001:db8:81::2/64    | 2001:db8:82::2/64 |
+# |  |                      |                   |
+# |  \______________________/                   |
+# |                   |                         |
+# |                   |                         |
+# |                   $ul31 +                   |
+# |       2001:db8:83::2/64 |               SW3 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|-------------------+
+# |                         + $ul4              |
+# |                         ^ 2001:db8:83::1/64 |
+# |  + g2 (gre)             |                   |
+# |    loc=2001:db8:40::2   |                   |
+# |    rem=2001:db8:40::1 --'                   |
+# |    tos=inherit                              |
+# |                                             |
+# |               $ol4 +                        |
+# |       192.0.4.1/24 |                    SW4 |
+# +--------------------|------------------------+
+#                      |
+# +--------------------|---------+
+# |                    |         |
+# |                $h2 +         |
+# |  192.0.4.{2-62}/24        H2 |
+# +------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	multipath_ipv4
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.3.2/24
+	ip route add vrf v$h1 192.0.4.0/24 via 192.0.3.1
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 192.0.4.0/24 via 192.0.3.1
+	simple_if_fini $h1 192.0.3.2/24
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 192.0.3.1/24
+	__simple_if_init $ul1 v$ol1 2001:db8:80::1/64
+
+	tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 2001:db8:40::1/128
+	ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
+
+	ip route add vrf v$ol1 192.0.4.0/24 nexthop dev g1
+}
+
+sw1_destroy()
+{
+	ip route del vrf v$ol1 192.0.4.0/24
+
+	ip -6 route del vrf v$ol1 2001:db8:40::2/128
+	__simple_if_fini g1 2001:db8:40::1/128
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 2001:db8:80::1/64
+	simple_if_fini $ol1 192.0.3.1/24
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 2001:db8:80::2/64
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
+	vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
+
+	ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
+	ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 \
+	   nexthop via 2001:db8:82::2
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$ul21 2001:db8:40::2/128
+	ip -6 route del vrf v$ul21 2001:db8:40::1/128
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 2001:db8:80::2/64
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 2001:db8:83::2/64
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
+	vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
+
+	ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
+	ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
+	   nexthop via 2001:db8:81::1 \
+	   nexthop via 2001:db8:82::1
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip -6 route del vrf v$ul31 2001:db8:40::1/128
+	ip -6 route del vrf v$ul31 2001:db8:40::2/128
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 2001:Db8:83::2/64
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 192.0.4.1/24
+	__simple_if_init $ul4 v$ol4 2001:db8:83::1/64
+
+	tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 2001:db8:40::2/128
+	ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
+
+	ip route add vrf v$ol4 192.0.3.0/24 nexthop dev g2
+}
+
+sw4_destroy()
+{
+	ip route del vrf v$ol4 192.0.3.0/24
+
+	ip -6 route del vrf v$ol4 2001:db8:40::1/128
+	__simple_if_fini g2 2001:db8:40::2/128
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 2001:db8:83::1/64
+	simple_if_fini $ol4 192.0.4.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.4.2/24
+	ip route add vrf v$h2 192.0.3.0/24 via 192.0.4.1
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 192.0.3.0/24 via 192.0.4.1
+	simple_if_fini $h2 192.0.4.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath4_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 2
+	ip route replace vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 weight $weight1 \
+	   nexthop via 2001:db8:82::2 weight $weight2
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -q -p 64 -A "192.0.3.2-192.0.3.62" -B "192.0.4.2-192.0.4.62" \
+	       -d $MZ_DELAY -c 50 -t udp "sp=1024,dp=1024"
+	sleep 1
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip route replace vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 \
+	   nexthop via 2001:db8:82::2
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.4.2
+}
+
+multipath_ipv4()
+{
+	log_info "Running IPv4 over GRE over IPv6 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh b/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh
new file mode 100755
index 000000000000..e1a4b50505f5
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_inner_v6_multipath.sh
@@ -0,0 +1,305 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test traffic distribution when there are multiple routes between an IPv6
+# GRE tunnel. The tunnel carries IPv6 traffic between multiple hosts.
+# Multiple routes are in the underlay network. With the default multipath
+# policy, SW2 will only look at the outer IP addresses, hence only a single
+# route would be used.
+#
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |  2001:db8:1::2/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-------------------------+
+# | SW1               |                         |
+# |              $ol1 +                         |
+# |  2001:db8:1::1/64                           |
+# |                                             |
+# |  + g1 (gre)                                 |
+# |    loc=2001:db8:40::1                       |
+# |    rem=2001:db8:40::2 --.                   |
+# |    tos=inherit          |                   |
+# |                         v                   |
+# |                         + $ul1              |
+# |                         | 2001:db8:80::1/64 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|-------------------+
+# | SW2                     |                   |
+# |                   $ul21 +                   |
+# |       2001:db8:80::2/64                     |
+# |                   |                         |
+# !   ________________|_____                    |
+# |  /                      \                   |
+# |  |                      |                   |
+# |  + $ul22.111 (vlan)     + $ul22.222 (vlan)  |
+# |  | 2001:db8:81::1/64    | 2001:db8:82::1/64 |
+# |  |                      |                   |
+# +--|----------------------|-------------------+
+#    |                      |
+# +--|----------------------|-------------------+
+# |  |                      |                   |
+# |  + $ul32.111 (vlan)     + $ul32.222 (vlan)  |
+# |  | 2001:db8:81::2/64    | 2001:db8:82::2/64 |
+# |  |                      |                   |
+# |  \______________________/                   |
+# |                   |                         |
+# |                   |                         |
+# |                   $ul31 +                   |
+# |       2001:db8:83::2/64 |               SW3 |
+# +-------------------------|-------------------+
+#                           |
+# +-------------------------|-------------------+
+# |                         + $ul4              |
+# |                         ^ 2001:db8:83::1/64 |
+# |  + g2 (gre)             |                   |
+# |    loc=2001:db8:40::2   |                   |
+# |    rem=2001:db8:40::1 --'                   |
+# |    tos=inherit                              |
+# |                                             |
+# |               $ol4 +                        |
+# |   2001:db8:2::1/64 |                    SW4 |
+# +--------------------|------------------------+
+#                      |
+# +--------------------|---------+
+# |                    |         |
+# |                $h2 +         |
+# |   2001:db8:2::2/64        H2 |
+# +------------------------------+
+
+ALL_TESTS="
+	ping_ipv6
+	multipath_ipv6
+"
+
+NUM_NETIFS=10
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 2001:db8:1::2/64
+	ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::1
+	simple_if_fini $h1 2001:db8:1::2/64
+}
+
+sw1_create()
+{
+	simple_if_init $ol1 2001:db8:1::1/64
+	__simple_if_init $ul1 v$ol1 2001:db8:80::1/64
+
+	tunnel_create g1 ip6gre 2001:db8:40::1 2001:db8:40::2 tos inherit dev v$ol1
+	__simple_if_init g1 v$ol1 2001:db8:40::1/128
+	ip -6 route add vrf v$ol1 2001:db8:40::2/128 via 2001:db8:80::2
+
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1
+}
+
+sw1_destroy()
+{
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+
+	ip -6 route del vrf v$ol1 2001:db8:40::2/128
+	__simple_if_fini g1 2001:db8:40::1/128
+	tunnel_destroy g1
+
+	__simple_if_fini $ul1 2001:db8:80::1/64
+	simple_if_fini $ol1 2001:db8:1::1/64
+}
+
+sw2_create()
+{
+	simple_if_init $ul21 2001:db8:80::2/64
+	__simple_if_init $ul22 v$ul21
+	vlan_create $ul22 111 v$ul21 2001:db8:81::1/64
+	vlan_create $ul22 222 v$ul21 2001:db8:82::1/64
+
+	ip -6 route add vrf v$ul21 2001:db8:40::1/128 via 2001:db8:80::1
+	ip -6 route add vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 \
+	   nexthop via 2001:db8:82::2
+}
+
+sw2_destroy()
+{
+	ip -6 route del vrf v$ul21 2001:db8:40::2/128
+	ip -6 route del vrf v$ul21 2001:db8:40::1/128
+
+	vlan_destroy $ul22 222
+	vlan_destroy $ul22 111
+	__simple_if_fini $ul22
+	simple_if_fini $ul21 2001:db8:80::2/64
+}
+
+sw3_create()
+{
+	simple_if_init $ul31 2001:db8:83::2/64
+	__simple_if_init $ul32 v$ul31
+	vlan_create $ul32 111 v$ul31 2001:db8:81::2/64
+	vlan_create $ul32 222 v$ul31 2001:db8:82::2/64
+
+	ip -6 route add vrf v$ul31 2001:db8:40::2/128 via 2001:db8:83::1
+	ip -6 route add vrf v$ul31 2001:db8:40::1/128 \
+	   nexthop via 2001:db8:81::1 \
+	   nexthop via 2001:db8:82::1
+
+	tc qdisc add dev $ul32 clsact
+	tc filter add dev $ul32 ingress pref 111 prot 802.1Q \
+	   flower vlan_id 111 action pass
+	tc filter add dev $ul32 ingress pref 222 prot 802.1Q \
+	   flower vlan_id 222 action pass
+}
+
+sw3_destroy()
+{
+	tc qdisc del dev $ul32 clsact
+
+	ip -6 route del vrf v$ul31 2001:db8:40::1/128
+	ip -6 route del vrf v$ul31 2001:db8:40::2/128
+
+	vlan_destroy $ul32 222
+	vlan_destroy $ul32 111
+	__simple_if_fini $ul32
+	simple_if_fini $ul31 2001:Db8:83::2/64
+}
+
+sw4_create()
+{
+	simple_if_init $ol4 2001:db8:2::1/64
+	__simple_if_init $ul4 v$ol4 2001:db8:83::1/64
+
+	tunnel_create g2 ip6gre 2001:db8:40::2 2001:db8:40::1 tos inherit dev v$ol4
+	__simple_if_init g2 v$ol4 2001:db8:40::2/128
+	ip -6 route add vrf v$ol4 2001:db8:40::1/128 via 2001:db8:83::2
+
+	ip -6 route add vrf v$ol4 2001:db8:1::/64 dev g2
+}
+
+sw4_destroy()
+{
+	ip -6 route del vrf v$ol4 2001:db8:1::/64
+
+	ip -6 route del vrf v$ol4 2001:db8:40::1/128
+	__simple_if_fini g2 2001:db8:40::2/128
+	tunnel_destroy g2
+
+	__simple_if_fini $ul4 2001:db8:83::1/64
+	simple_if_fini $ol4 2001:db8:2::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 2001:db8:2::2/64
+	ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::1
+	simple_if_fini $h2 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+
+	ol1=${NETIFS[p2]}
+	ul1=${NETIFS[p3]}
+
+	ul21=${NETIFS[p4]}
+	ul22=${NETIFS[p5]}
+
+	ul32=${NETIFS[p6]}
+	ul31=${NETIFS[p7]}
+
+	ul4=${NETIFS[p8]}
+	ol4=${NETIFS[p9]}
+
+	h2=${NETIFS[p10]}
+
+	vrf_prepare
+	h1_create
+	sw1_create
+	sw2_create
+	sw3_create
+	sw4_create
+	h2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	h2_destroy
+	sw4_destroy
+	sw3_destroy
+	sw2_destroy
+	sw1_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+multipath6_test()
+{
+	local what=$1; shift
+	local weight1=$1; shift
+	local weight2=$1; shift
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 2
+	ip route replace vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 weight $weight1 \
+	   nexthop via 2001:db8:82::2 weight $weight2
+
+	local t0_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t0_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	ip vrf exec v$h1 \
+	   $MZ $h1 -6 -q -p 64 -A "2001:db8:1::2-2001:db8:1::3e" \
+	       -B "2001:db8:2::2-2001:db8:2::3e" \
+	       -d $MZ_DELAY -c 50 -t udp "sp=1024,dp=1024"
+	sleep 1
+
+	local t1_111=$(tc_rule_stats_get $ul32 111 ingress)
+	local t1_222=$(tc_rule_stats_get $ul32 222 ingress)
+
+	local d111=$((t1_111 - t0_111))
+	local d222=$((t1_222 - t0_222))
+	multipath_eval "$what" $weight1 $weight2 $d111 $d222
+
+	ip route replace vrf v$ul21 2001:db8:40::2/128 \
+	   nexthop via 2001:db8:81::2 \
+	   nexthop via 2001:db8:82::2
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+ping_ipv6()
+{
+	ping_test $h1 2001:db8:2::2
+}
+
+multipath_ipv6()
+{
+	log_info "Running IPv6 over GRE over IPv6 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ip6gre_lib.sh b/tools/testing/selftests/net/forwarding/ip6gre_lib.sh
new file mode 100644
index 000000000000..2d91281dc5b7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ip6gre_lib.sh
@@ -0,0 +1,518 @@
+# SPDX-License-Identifier: GPL-2.0
+#!/bin/bash
+
+# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
+# topology. Supports both flat and hierarchical models.
+#
+# Flat Model:
+# Overlay and underlay share the same VRF.
+# SW1 uses default VRF so tunnel has no bound dev.
+# SW2 uses non-default VRF tunnel has a bound dev.
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |        198.51.100.1/24  |      |
+# |        2001:db8:1::1/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------+
+# | SW1                     |                   |
+# |                    $ol1 +                   |
+# |        198.51.100.2/24                      |
+# |        2001:db8:1::2/64                     |
+# |                                             |
+# |      + g1a (ip6gre)                         |
+# |        loc=2001:db8:3::1                    |
+# |        rem=2001:db8:3::2 --.                |
+# |        tos=inherit         |                |
+# |                            .                |
+# |      .---------------------                 |
+# |      |                                      |
+# |      v                                      |
+# |      + $ul1.111 (vlan)                      |
+# |      | 2001:db8:10::1/64                    |
+# |       \                                     |
+# |        \____________                        |
+# |                     |                       |
+# | VRF default         + $ul1                  |
+# +---------------------|-----------------------+
+#                       |
+# +---------------------|-----------------------+
+# | SW2                 |                       |
+# |                $ul2 +                       |
+# |          ___________|                       |
+# |         /                                   |
+# |        /                                    |
+# |       + $ul2.111 (vlan)                     |
+# |       ^ 2001:db8:10::2/64                   |
+# |       |                                     |
+# |       |                                     |
+# |       '----------------------.              |
+# |       + g2a (ip6gre)         |              |
+# |         loc=2001:db8:3::2    |              |
+# |         rem=2001:db8:3::1  --'              |
+# |         tos=inherit                         |
+# |                                             |
+# |                     + $ol2                  |
+# |                     | 203.0.113.2/24        |
+# | VRF v$ol2           | 2001:db8:2::2/64      |
+# +---------------------|-----------------------+
+# +---------------------|----------+
+# | H2                  |          |
+# |                 $h2 +          |
+# |    203.0.113.1/24              |
+# |    2001:db8:2::1/64            |
+# +--------------------------------+
+#
+# Hierarchical model:
+# The tunnel is bound to a device in a different VRF
+#
+# +--------------------------------+
+# | H1                             |
+# |                     $h1 +      |
+# |        198.51.100.1/24  |      |
+# |        2001:db8:1::1/64 |      |
+# +-------------------------|------+
+#                           |
+# +-------------------------|-------------------+
+# | SW1                     |                   |
+# | +-----------------------|-----------------+ |
+# | |                  $ol1 +                 | |
+# | |      198.51.100.2/24                    | |
+# | |      2001:db8:1::2/64                   | |
+# | |                                         | |
+# | |              + g1a (ip6gre)             | |
+# | |                loc=2001:db8:3::1        | |
+# | |                rem=2001:db8:3::2        | |
+# | |                tos=inherit              | |
+# | |                    ^                    | |
+# | |   VRF v$ol1        |                    | |
+# | +--------------------|--------------------+ |
+# |                      |                      |
+# | +--------------------|--------------------+ |
+# | |   VRF v$ul1        |                    | |
+# | |                    |                    | |
+# | |                    v                    | |
+# | |             dummy1 +                    | |
+# | |       2001:db8:3::1/64                  | |
+# | |         .-----------'                   | |
+# | |         |                               | |
+# | |         v                               | |
+# | |         + $ul1.111 (vlan)               | |
+# | |         | 2001:db8:10::1/64             | |
+# | |         \                               | |
+# | |          \__________                    | |
+# | |                     |                   | |
+# | |                     + $ul1              | |
+# | +---------------------|-------------------+ |
+# +-----------------------|---------------------+
+#                         |
+# +-----------------------|---------------------+
+# | SW2                   |                     |
+# | +---------------------|-------------------+ |
+# | |                     + $ul2              | |
+# | |                _____|                   | |
+# | |               /                         | |
+# | |              /                          | |
+# | |              | $ul2.111 (vlan)          | |
+# | |              + 2001:db8:10::2/64        | |
+# | |              ^                          | |
+# | |              |                          | |
+# | |              '------.                   | |
+# | |              dummy2 +                   | |
+# | |              2001:db8:3::2/64           | |
+# | |                     ^                   | |
+# | |                     |                   | |
+# | |                     |                   | |
+# | | VRF v$ul2           |                   | |
+# | +---------------------|-------------------+ |
+# |                       |                     |
+# | +---------------------|-------------------+ |
+# | | VRF v$ol2           |                   | |
+# | |                     |                   | |
+# | |                     v                   | |
+# | |        g2a (ip6gre) +                   | |
+# | |        loc=2001:db8:3::2                | |
+# | |        rem=2001:db8:3::1                | |
+# | |        tos=inherit                      | |
+# | |                                         | |
+# | |                $ol2 +                   | |
+# | |    203.0.113.2/24   |                   | |
+# | |    2001:db8:2::2/64 |                   | |
+# | +---------------------|-------------------+ |
+# +-----------------------|---------------------+
+#                         |
+# +-----------------------|--------+
+# | H2                    |        |
+# |                   $h2 +        |
+# |      203.0.113.1/24            |
+# |      2001:db8:2::1/64          |
+# +--------------------------------+
+
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.1/24 2001:db8:1::1/64
+	ip route add vrf v$h1 203.0.113.0/24 via 198.51.100.2
+	ip -6 route add vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del vrf v$h1 2001:db8:2::/64 via 2001:db8:1::2
+	ip route del vrf v$h1 203.0.113.0/24 via 198.51.100.2
+	simple_if_fini $h1 198.51.100.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 203.0.113.1/24 2001:db8:2::1/64
+	ip route add vrf v$h2 198.51.100.0/24 via 203.0.113.2
+	ip -6 route add vrf v$h2 2001:db8:1::/64 via 2001:db8:2::2
+}
+
+h2_destroy()
+{
+	ip -6 route del vrf v$h2 2001:db8:1::/64 via 2001:db8:2::2
+	ip route del vrf v$h2 198.51.100.0/24 via 203.0.113.2
+	simple_if_fini $h2 203.0.113.1/24 2001:db8:2::1/64
+}
+
+sw1_flat_create()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip link set dev $ol1 up
+        __addr_add_del $ol1 add 198.51.100.2/24 2001:db8:1::2/64
+
+	ip link set dev $ul1 up
+	vlan_create $ul1 111 "" 2001:db8:10::1/64
+
+	tunnel_create g1a ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		ttl inherit "$@"
+	ip link set dev g1a up
+        __addr_add_del g1a add "2001:db8:3::1/128"
+
+	ip -6 route add 2001:db8:3::2/128 via 2001:db8:10::2
+	ip route add 203.0.113.0/24 dev g1a
+	ip -6 route add 2001:db8:2::/64 dev g1a
+}
+
+sw1_flat_destroy()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip -6 route del 2001:db8:2::/64
+	ip route del 203.0.113.0/24
+	ip -6 route del 2001:db8:3::2/128 via 2001:db8:10::2
+
+	__simple_if_fini g1a 2001:db8:3::1/128
+	tunnel_destroy g1a
+
+	vlan_destroy $ul1 111
+	__simple_if_fini $ul1
+	__simple_if_fini $ol1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw2_flat_create()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	simple_if_init $ol2 203.0.113.2/24 2001:db8:2::2/64
+	__simple_if_init $ul2 v$ol2
+	vlan_create $ul2 111 v$ol2 2001:db8:10::2/64
+
+	tunnel_create g2a ip6gre 2001:db8:3::2 2001:db8:3::1 tos inherit \
+		ttl inherit dev v$ol2 "$@"
+	__simple_if_init g2a v$ol2 2001:db8:3::2/128
+
+	# Replace neighbor to avoid 1 dropped packet due to "unresolved neigh"
+	ip neigh replace dev $ol2 203.0.113.1 lladdr $(mac_get $h2)
+	ip -6 neigh replace dev $ol2 2001:db8:2::1 lladdr $(mac_get $h2)
+
+	ip -6 route add vrf v$ol2 2001:db8:3::1/128 via 2001:db8:10::1
+	ip route add vrf v$ol2 198.51.100.0/24 dev g2a
+	ip -6 route add vrf v$ol2 2001:db8:1::/64 dev g2a
+}
+
+sw2_flat_destroy()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	ip -6 route del vrf v$ol2 2001:db8:2::/64
+	ip route del vrf v$ol2 198.51.100.0/24
+	ip -6 route del vrf v$ol2 2001:db8:3::1/128 via 2001:db8:10::1
+
+	__simple_if_fini g2a 2001:db8:3::2/128
+	tunnel_destroy g2a
+
+	vlan_destroy $ul2 111
+	__simple_if_fini $ul2
+	simple_if_fini $ol2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+sw1_hierarchical_create()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	simple_if_init $ol1 198.51.100.2/24 2001:db8:1::2/64
+	simple_if_init $ul1
+	ip link add name dummy1 type dummy
+	__simple_if_init dummy1 v$ul1 2001:db8:3::1/64
+
+	vlan_create $ul1 111 v$ul1 2001:db8:10::1/64
+	tunnel_create g1a ip6gre 2001:db8:3::1 2001:db8:3::2 tos inherit \
+		ttl inherit dev dummy1 "$@"
+	ip link set dev g1a master v$ol1
+
+	ip -6 route add vrf v$ul1 2001:db8:3::2/128 via 2001:db8:10::2
+	ip route add vrf v$ol1 203.0.113.0/24 dev g1a
+	ip -6 route add vrf v$ol1 2001:db8:2::/64 dev g1a
+}
+
+sw1_hierarchical_destroy()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip -6 route del vrf v$ol1 2001:db8:2::/64
+	ip route del vrf v$ol1 203.0.113.0/24
+	ip -6 route del vrf v$ul1 2001:db8:3::2/128
+
+	tunnel_destroy g1a
+	vlan_destroy $ul1 111
+
+	__simple_if_fini dummy1 2001:db8:3::1/64
+	ip link del dev dummy1
+
+	simple_if_fini $ul1
+	simple_if_fini $ol1 198.51.100.2/24 2001:db8:1::2/64
+}
+
+sw2_hierarchical_create()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	simple_if_init $ol2 203.0.113.2/24 2001:db8:2::2/64
+	simple_if_init $ul2
+
+	ip link add name dummy2 type dummy
+	__simple_if_init dummy2 v$ul2 2001:db8:3::2/64
+
+	vlan_create $ul2 111 v$ul2 2001:db8:10::2/64
+	tunnel_create g2a ip6gre 2001:db8:3::2 2001:db8:3::1 tos inherit \
+		ttl inherit dev dummy2 "$@"
+	ip link set dev g2a master v$ol2
+
+	# Replace neighbor to avoid 1 dropped packet due to "unresolved neigh"
+	ip neigh replace dev $ol2 203.0.113.1 lladdr $(mac_get $h2)
+	ip -6 neigh replace dev $ol2 2001:db8:2::1 lladdr $(mac_get $h2)
+
+	ip -6 route add vrf v$ul2 2001:db8:3::1/128 via 2001:db8:10::1
+	ip route add vrf v$ol2 198.51.100.0/24 dev g2a
+	ip -6 route add vrf v$ol2 2001:db8:1::/64 dev g2a
+}
+
+sw2_hierarchical_destroy()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	ip -6 route del vrf v$ol2 2001:db8:2::/64
+	ip route del vrf v$ol2 198.51.100.0/24
+	ip -6 route del vrf v$ul2 2001:db8:3::1/128
+
+	tunnel_destroy g2a
+	vlan_destroy $ul2 111
+
+	__simple_if_fini dummy2 2001:db8:3::2/64
+	ip link del dev dummy2
+
+	simple_if_fini $ul2
+	simple_if_fini $ol2 203.0.113.2/24 2001:db8:2::2/64
+}
+
+test_traffic_ip4ip6()
+{
+	RET=0
+
+	h1mac=$(mac_get $h1)
+	ol1mac=$(mac_get $ol1)
+
+	tc qdisc add dev $ul1 clsact
+	tc filter add dev $ul1 egress proto all pref 1 handle 101 \
+		flower $TC_FLAG action pass
+
+	tc qdisc add dev $ol2 clsact
+	tc filter add dev $ol2 egress protocol ipv4 pref 1 handle 101 \
+		flower $TC_FLAG dst_ip 203.0.113.1 action pass
+
+	$MZ $h1 -c 1000 -p 64 -a $h1mac -b $ol1mac -A 198.51.100.1 \
+		-B 203.0.113.1 -t ip -q -d $MZ_DELAY
+
+	# Check ports after encap and after decap.
+	tc_check_at_least_x_packets "dev $ul1 egress" 101 1000
+	check_err $? "Packets did not go through $ul1, tc_flag = $TC_FLAG"
+
+	tc_check_at_least_x_packets "dev $ol2 egress" 101 1000
+	check_err $? "Packets did not go through $ol2, tc_flag = $TC_FLAG"
+
+	log_test "$@"
+
+	tc filter del dev $ol2 egress protocol ipv4 pref 1 handle 101 flower
+	tc qdisc del dev $ol2 clsact
+	tc filter del dev $ul1 egress proto all pref 1 handle 101 flower
+	tc qdisc del dev $ul1 clsact
+}
+
+test_traffic_ip6ip6()
+{
+	RET=0
+
+	h1mac=$(mac_get $h1)
+	ol1mac=$(mac_get $ol1)
+
+	tc qdisc add dev $ul1 clsact
+	tc filter add dev $ul1 egress proto all pref 1 handle 101 \
+		flower $TC_FLAG action pass
+
+	tc qdisc add dev $ol2 clsact
+	tc filter add dev $ol2 egress protocol ipv6 pref 1 handle 101 \
+		flower $TC_FLAG dst_ip 2001:db8:2::1 action pass
+
+	$MZ -6 $h1 -c 1000 -p 64 -a $h1mac -b $ol1mac -A 2001:db8:1::1 \
+		-B 2001:db8:2::1 -t ip -q -d $MZ_DELAY
+
+	# Check ports after encap and after decap.
+	tc_check_at_least_x_packets "dev $ul1 egress" 101 1000
+	check_err $? "Packets did not go through $ul1, tc_flag = $TC_FLAG"
+
+	tc_check_at_least_x_packets "dev $ol2 egress" 101 1000
+	check_err $? "Packets did not go through $ol2, tc_flag = $TC_FLAG"
+
+	log_test "$@"
+
+	tc filter del dev $ol2 egress protocol ipv6 pref 1 handle 101 flower
+	tc qdisc del dev $ol2 clsact
+	tc filter del dev $ul1 egress proto all pref 1 handle 101 flower
+	tc qdisc del dev $ul1 clsact
+}
+
+topo_mtu_change()
+{
+	local mtu=$1
+
+	ip link set mtu $mtu dev $h1
+	ip link set mtu $mtu dev $ol1
+	ip link set mtu $mtu dev g1a
+	ip link set mtu $mtu dev $ul1
+	ip link set mtu $mtu dev $ul1.111
+	ip link set mtu $mtu dev $h2
+	ip link set mtu $mtu dev $ol2
+	ip link set mtu $mtu dev g2a
+	ip link set mtu $mtu dev $ul2
+	ip link set mtu $mtu dev $ul2.111
+}
+
+test_mtu_change()
+{
+	RET=0
+
+	ping6_do $h1 2001:db8:2::1 "-s 1800 -w 3"
+	check_fail $? "ping GRE IPv6 should not pass with packet size 1800"
+
+	RET=0
+
+	topo_mtu_change	2000
+	ping6_do $h1 2001:db8:2::1 "-s 1800 -w 3"
+	check_err $?
+	log_test "ping GRE IPv6, packet size 1800 after MTU change"
+}
+
+topo_flat_remote_change()
+{
+	local old1=$1; shift
+	local new1=$1; shift
+	local old2=$1; shift
+	local new2=$1; shift
+
+	ip link set dev g1a type ip6gre local $new1 remote $new2
+        __addr_add_del g1a add "$new1/128"
+        __addr_add_del g1a del "$old1/128"
+	ip -6 route add $new2/128 via 2001:db8:10::2
+	ip -6 route del $old2/128
+
+	ip link set dev g2a type ip6gre local $new2 remote $new1
+        __addr_add_del g2a add "$new2/128"
+        __addr_add_del g2a del "$old2/128"
+	ip -6 route add vrf v$ol2 $new1/128 via 2001:db8:10::1
+	ip -6 route del vrf v$ol2 $old1/128
+}
+
+flat_remote_change()
+{
+	local old1=2001:db8:3::1
+	local new1=2001:db8:3::10
+	local old2=2001:db8:3::2
+	local new2=2001:db8:3::20
+
+	topo_flat_remote_change $old1 $new1 $old2 $new2
+}
+
+flat_remote_restore()
+{
+	local old1=2001:db8:3::10
+	local new1=2001:db8:3::1
+	local old2=2001:db8:3::20
+	local new2=2001:db8:3::2
+
+	topo_flat_remote_change $old1 $new1 $old2 $new2
+}
+
+topo_hier_remote_change()
+{
+	local old1=$1; shift
+	local new1=$1; shift
+	local old2=$1; shift
+	local new2=$1; shift
+
+        __addr_add_del dummy1 del "$old1/64"
+        __addr_add_del dummy1 add "$new1/64"
+	ip link set dev g1a type ip6gre local $new1 remote $new2
+	ip -6 route add vrf v$ul1 $new2/128 via 2001:db8:10::2
+	ip -6 route del vrf v$ul1 $old2/128
+
+        __addr_add_del dummy2 del "$old2/64"
+        __addr_add_del dummy2 add "$new2/64"
+	ip link set dev g2a type ip6gre local $new2 remote $new1
+	ip -6 route add vrf v$ul2 $new1/128 via 2001:db8:10::1
+	ip -6 route del vrf v$ul2 $old1/128
+}
+
+hier_remote_change()
+{
+	local old1=2001:db8:3::1
+	local new1=2001:db8:3::10
+	local old2=2001:db8:3::2
+	local new2=2001:db8:3::20
+
+	topo_hier_remote_change $old1 $new1 $old2 $new2
+}
+
+hier_remote_restore()
+{
+	local old1=2001:db8:3::10
+	local new1=2001:db8:3::1
+	local old2=2001:db8:3::20
+	local new2=2001:db8:3::2
+
+	topo_hier_remote_change $old1 $new1 $old2 $new2
+}
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh
new file mode 100755
index 000000000000..abb694397b86
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel without key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create gre $ol1 $ul1
+	sw2_flat_create gre $ol2 $ul2
+}
+
+gre_flat4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre flat"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh
new file mode 100755
index 000000000000..c4f373337e48
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_key.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create gre $ol1 $ul1 key 233
+	sw2_flat_create gre $ol2 $ul2 key 233
+}
+
+gre_flat4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre flat with key"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change	gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh
new file mode 100755
index 000000000000..a811130c0627
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_flat_gre_keys.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnel with key.
+# This test uses flat topology for IP tunneling tests. See ipip_lib.sh for more
+# details.
+
+ALL_TESTS="gre_flat4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_flat_create gre $ol1 $ul1 ikey 111 okey 222
+	sw2_flat_create gre $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_flat4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre flat with ikey/okey"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change	gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_flat_destroy $ol2 $ul2
+	sw1_flat_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh
new file mode 100755
index 000000000000..05c5b3cf2f78
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create gre $ol1 $ul1
+	sw2_hierarchical_create gre $ol2 $ul2
+}
+
+gre_hier4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre hierarchical"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh
new file mode 100755
index 000000000000..9b105dbca32a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_key.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create gre $ol1 $ul1 key 22
+	sw2_hierarchical_create gre $ol2 $ul2 key 22
+}
+
+gre_hier4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre hierarchical with key"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh
new file mode 100755
index 000000000000..e275d25bd83a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_hier_gre_keys.sh
@@ -0,0 +1,63 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test IP-in-IP GRE tunnels without key.
+# This test uses hierarchical topology for IP tunneling tests. See
+# ipip_lib.sh for more details.
+
+ALL_TESTS="gre_hier4 gre_mtu_change"
+
+NUM_NETIFS=6
+source lib.sh
+source ipip_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	ol1=${NETIFS[p2]}
+
+	ul1=${NETIFS[p3]}
+	ul2=${NETIFS[p4]}
+
+	ol2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	forwarding_enable
+	vrf_prepare
+	h1_create
+	h2_create
+	sw1_hierarchical_create gre $ol1 $ul1 ikey 111 okey 222
+	sw2_hierarchical_create gre $ol2 $ul2 ikey 222 okey 111
+}
+
+gre_hier4()
+{
+	RET=0
+
+	ping_test $h1 192.0.2.18 " gre hierarchical with ikey/okey"
+}
+
+gre_mtu_change()
+{
+	test_mtu_change gre
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	sw2_hierarchical_destroy $ol2 $ul2
+	sw1_hierarchical_destroy $ol1 $ul1
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+	forwarding_restore
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ipip_lib.sh b/tools/testing/selftests/net/forwarding/ipip_lib.sh
new file mode 100644
index 000000000000..01e62c4ac94d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/ipip_lib.sh
@@ -0,0 +1,348 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Handles creation and destruction of IP-in-IP or GRE tunnels over the given
+# topology. Supports both flat and hierarchical models.
+#
+# Flat Model:
+# Overlay and underlay share the same VRF.
+# SW1 uses default VRF so tunnel has no bound dev.
+# SW2 uses non-default VRF tunnel has a bound dev.
+# +-------------------------+
+# | H1                      |
+# |               $h1 +     |
+# |      192.0.2.1/28 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-----+
+# | SW1               |     |
+# |              $ol1 +     |
+# |      192.0.2.2/28       |
+# |                         |
+# |  + g1a (gre)            |
+# |    loc=192.0.2.65       |
+# |    rem=192.0.2.66 --.   |
+# |    tos=inherit      |   |
+# |  .------------------'   |
+# |  |                      |
+# |  v                      |
+# |  + $ul1.111 (vlan)      |
+# |  | 192.0.2.129/28       |
+# |   \                     |
+# |    \_______             |
+# |            |            |
+# |VRF default + $ul1       |
+# +------------|------------+
+#              |
+# +------------|------------+
+# | SW2        + $ul2       |
+# |     _______|            |
+# |    /                    |
+# |   /                     |
+# |  + $ul2.111 (vlan)      |
+# |  ^ 192.0.2.130/28       |
+# |  |                      |
+# |  |                      |
+# |  '------------------.   |
+# |  + g2a (gre)        |   |
+# |    loc=192.0.2.66   |   |
+# |    rem=192.0.2.65 --'   |
+# |    tos=inherit          |
+# |                         |
+# |              $ol2 +     |
+# |     192.0.2.17/28 |     |
+# | VRF v$ol2         |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|-----+
+# | H2                |     |
+# |               $h2 +     |
+# |     192.0.2.18/28       |
+# +-------------------------+
+#
+# Hierarchical model:
+# The tunnel is bound to a device in a different VRF
+#
+# +---------------------------+
+# | H1                        |
+# |               $h1 +       |
+# |      192.0.2.1/28 |       |
+# +-------------------|-------+
+#                     |
+# +-------------------|-------+
+# | SW1               |       |
+# | +-----------------|-----+ |
+# | |            $ol1 +     | |
+# | |     192.0.2.2/28      | |
+# | |                       | |
+# | |    + g1a (gre)        | |
+# | |    rem=192.0.2.66     | |
+# | |    tos=inherit        | |
+# | |    loc=192.0.2.65     | |
+# | |           ^           | |
+# | | VRF v$ol1 |           | |
+# | +-----------|-----------+ |
+# |             |             |
+# | +-----------|-----------+ |
+# | | VRF v$ul1 |           | |
+# | |           |           | |
+# | |           |           | |
+# | |           v           | |
+# | |    dummy1 +           | |
+# | |   192.0.2.65          | |
+# | |   .-------'           | |
+# | |   |                   | |
+# | |   v                   | |
+# | |   + $ul1.111 (vlan)   | |
+# | |   | 192.0.2.129/28    | |
+# | |   \                   | |
+# | |    \_____             | |
+# | |          |            | |
+# | |          + $ul1       | |
+# | +----------|------------+ |
+# +------------|--------------+
+#              |
+# +------------|--------------+
+# | SW2        |              |
+# | +----------|------------+ |
+# | |          + $ul2       | |
+# | |     _____|            | |
+# | |    /                  | |
+# | |   /                   | |
+# | |   | $ul2.111 (vlan)   | |
+# | |   + 192.0.2.130/28    | |
+# | |   ^                   | |
+# | |   |                   | |
+# | |   '-------.           | |
+# | |    dummy2 +           | |
+# | |    192.0.2.66         | |
+# | |           ^           | |
+# | |           |           | |
+# | |           |           | |
+# | | VRF v$ul2 |           | |
+# | +-----------|-----------+ |
+# |             |             |
+# | +-----------|-----------+ |
+# | | VRF v$ol2 |           | |
+# | |           |           | |
+# | |           v           | |
+# | |  g2a (gre)+           | |
+# | |  loc=192.0.2.66       | |
+# | |  rem=192.0.2.65       | |
+# | |  tos=inherit          | |
+# | |                       | |
+# | |            $ol2 +     | |
+# | |   192.0.2.17/28 |     | |
+# | +-----------------|-----+ |
+# +-------------------|-------+
+#                     |
+# +-------------------|-------+
+# | H2                |       |
+# |               $h2 +       |
+# |     192.0.2.18/28         |
+# +---------------------------+
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip route add vrf v$h1 192.0.2.16/28 via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip route del vrf v$h1 192.0.2.16/28 via 192.0.2.2
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.18/28
+	ip route add vrf v$h2 192.0.2.0/28 via 192.0.2.17
+}
+
+h2_destroy()
+{
+	ip route del vrf v$h2 192.0.2.0/28 via 192.0.2.17
+	simple_if_fini $h2 192.0.2.18/28
+}
+
+sw1_flat_create()
+{
+	local type=$1; shift
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip link set dev $ol1 up
+        __addr_add_del $ol1 add "192.0.2.2/28"
+
+	ip link set dev $ul1 up
+	vlan_create $ul1 111 "" 192.0.2.129/28
+
+	tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit "$@"
+	ip link set dev g1a up
+        __addr_add_del g1a add "192.0.2.65/32"
+
+	ip route add 192.0.2.66/32 via 192.0.2.130
+
+	ip route add 192.0.2.16/28 nexthop dev g1a
+}
+
+sw1_flat_destroy()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip route del 192.0.2.16/28
+
+	ip route del 192.0.2.66/32 via 192.0.2.130
+	__simple_if_fini g1a 192.0.2.65/32
+	tunnel_destroy g1a
+
+	vlan_destroy $ul1 111
+	__simple_if_fini $ul1
+	__simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_flat_create()
+{
+	local type=$1; shift
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	simple_if_init $ol2 192.0.2.17/28
+	__simple_if_init $ul2 v$ol2
+	vlan_create $ul2 111 v$ol2 192.0.2.130/28
+
+	tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev v$ol2 \
+		"$@"
+	__simple_if_init g2a v$ol2 192.0.2.66/32
+
+	ip route add vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+	ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
+}
+
+sw2_flat_destroy()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	ip route del vrf v$ol2 192.0.2.0/28
+
+	ip route del vrf v$ol2 192.0.2.65/32 via 192.0.2.129
+	__simple_if_fini g2a 192.0.2.66/32
+	tunnel_destroy g2a
+
+	vlan_destroy $ul2 111
+	__simple_if_fini $ul2
+	simple_if_fini $ol2 192.0.2.17/28
+}
+
+sw1_hierarchical_create()
+{
+	local type=$1; shift
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	simple_if_init $ol1 192.0.2.2/28
+	simple_if_init $ul1
+	ip link add name dummy1 type dummy
+	__simple_if_init dummy1 v$ul1 192.0.2.65/32
+
+	vlan_create $ul1 111 v$ul1 192.0.2.129/28
+	tunnel_create g1a $type 192.0.2.65 192.0.2.66 tos inherit dev dummy1 \
+		"$@"
+	ip link set dev g1a master v$ol1
+
+	ip route add vrf v$ul1 192.0.2.66/32 via 192.0.2.130
+	ip route add vrf v$ol1 192.0.2.16/28 nexthop dev g1a
+}
+
+sw1_hierarchical_destroy()
+{
+	local ol1=$1; shift
+	local ul1=$1; shift
+
+	ip route del vrf v$ol1 192.0.2.16/28
+	ip route del vrf v$ul1 192.0.2.66/32
+
+	tunnel_destroy g1a
+	vlan_destroy $ul1 111
+
+	__simple_if_fini dummy1 192.0.2.65/32
+	ip link del dev dummy1
+
+	simple_if_fini $ul1
+	simple_if_fini $ol1 192.0.2.2/28
+}
+
+sw2_hierarchical_create()
+{
+	local type=$1; shift
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	simple_if_init $ol2 192.0.2.17/28
+	simple_if_init $ul2
+
+	ip link add name dummy2 type dummy
+	__simple_if_init dummy2 v$ul2 192.0.2.66/32
+
+	vlan_create $ul2 111 v$ul2 192.0.2.130/28
+	tunnel_create g2a $type 192.0.2.66 192.0.2.65 tos inherit dev dummy2 \
+		"$@"
+	ip link set dev g2a master v$ol2
+
+	ip route add vrf v$ul2 192.0.2.65/32 via 192.0.2.129
+	ip route add vrf v$ol2 192.0.2.0/28 nexthop dev g2a
+}
+
+sw2_hierarchical_destroy()
+{
+	local ol2=$1; shift
+	local ul2=$1; shift
+
+	ip route del vrf v$ol2 192.0.2.0/28
+	ip route del vrf v$ul2 192.0.2.65/32
+
+	tunnel_destroy g2a
+	vlan_destroy $ul2 111
+
+	__simple_if_fini dummy2 192.0.2.66/32
+	ip link del dev dummy2
+
+	simple_if_fini $ul2
+	simple_if_fini $ol2 192.0.2.17/28
+}
+
+topo_mtu_change()
+{
+	local mtu=$1
+
+	ip link set mtu $mtu dev $h1
+	ip link set mtu $mtu dev $ol1
+	ip link set mtu $mtu dev g1a
+	ip link set mtu $mtu dev $ul1
+	ip link set mtu $mtu dev $ul1.111
+	ip link set mtu $mtu dev $h2
+	ip link set mtu $mtu dev $ol2
+	ip link set mtu $mtu dev g2a
+	ip link set mtu $mtu dev $ul2
+	ip link set mtu $mtu dev $ul2.111
+}
+
+test_mtu_change()
+{
+	local encap=$1; shift
+
+	RET=0
+
+	ping_do $h1 192.0.2.18 "-s 1800	-w 3"
+	check_fail $? "ping $encap should not pass with size 1800"
+
+	RET=0
+
+	topo_mtu_change	2000
+	ping_do	$h1 192.0.2.18 "-s 1800	-w 3"
+	check_err $?
+	log_test "ping $encap packet size 1800 after MTU change"
+}
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
new file mode 100644
index 000000000000..a9034f0bb58b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -0,0 +1,2153 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+##############################################################################
+# Topology description. p1 looped back to p2, p3 to p4 and so on.
+
+declare -A NETIFS=(
+    [p1]=veth0
+    [p2]=veth1
+    [p3]=veth2
+    [p4]=veth3
+    [p5]=veth4
+    [p6]=veth5
+    [p7]=veth6
+    [p8]=veth7
+    [p9]=veth8
+    [p10]=veth9
+)
+
+# Port that does not have a cable connected.
+: "${NETIF_NO_CABLE:=eth8}"
+
+##############################################################################
+# Defines
+
+# Networking utilities.
+: "${PING:=ping}"
+: "${PING6:=ping6}"	# Some distros just use ping.
+: "${ARPING:=arping}"
+: "${TROUTE6:=traceroute6}"
+
+# Packet generator.
+: "${MZ:=mausezahn}"	# Some distributions use 'mz'.
+: "${MZ_DELAY:=0}"
+
+# Host configuration tools.
+: "${TEAMD:=teamd}"
+: "${MCD:=smcrouted}"
+: "${MC_CLI:=smcroutectl}"
+: "${MCD_TABLE_NAME:=selftests}"
+
+# Constants for netdevice bring-up:
+# Default time in seconds to wait for an interface to come up before giving up
+# and bailing out. Used during initial setup.
+: "${INTERFACE_TIMEOUT:=600}"
+# Like INTERFACE_TIMEOUT, but default for ad-hoc waiting in testing scripts.
+: "${WAIT_TIMEOUT:=20}"
+# Time to wait after interfaces participating in the test are all UP.
+: "${WAIT_TIME:=5}"
+
+# Whether to pause on, respectively, after a failure and before cleanup.
+: "${PAUSE_ON_CLEANUP:=no}"
+
+# Whether to create virtual interfaces, and what netdevice type they should be.
+: "${NETIF_CREATE:=yes}"
+: "${NETIF_TYPE:=veth}"
+
+# Constants for ping tests:
+# How many packets should be sent.
+: "${PING_COUNT:=10}"
+# Timeout (in seconds) before ping exits regardless of how many packets have
+# been sent or received
+: "${PING_TIMEOUT:=5}"
+
+# Minimum ageing_time (in centiseconds) supported by hardware
+: "${LOW_AGEING_TIME:=1000}"
+
+# Whether to check for availability of certain tools.
+: "${REQUIRE_JQ:=yes}"
+: "${REQUIRE_MZ:=yes}"
+: "${REQUIRE_MTOOLS:=no}"
+: "${REQUIRE_TEAMD:=no}"
+
+# Whether to override MAC addresses on interfaces participating in the test.
+: "${STABLE_MAC_ADDRS:=no}"
+
+# Flags for tcpdump
+: "${TCPDUMP_EXTRA_FLAGS:=}"
+
+# Flags for TC filters.
+: "${TC_FLAG:=skip_hw}"
+
+# Whether the machine is "slow" -- i.e. might be incapable of running tests
+# involving heavy traffic. This might be the case on a debug kernel, a VM, or
+# e.g. a low-power board.
+: "${KSFT_MACHINE_SLOW:=no}"
+
+##############################################################################
+# Find netifs by test-specified driver name
+
+driver_name_get()
+{
+	local dev=$1; shift
+	local driver_path="/sys/class/net/$dev/device/driver"
+
+	if [[ -L $driver_path ]]; then
+		basename `realpath $driver_path`
+	fi
+}
+
+netif_find_driver()
+{
+	local ifnames=`ip -j link show | jq -r ".[].ifname"`
+	local count=0
+
+	for ifname in $ifnames
+	do
+		local driver_name=`driver_name_get $ifname`
+		if [[ ! -z $driver_name && $driver_name == $NETIF_FIND_DRIVER ]]; then
+			count=$((count + 1))
+			NETIFS[p$count]="$ifname"
+		fi
+	done
+}
+
+# Whether to find netdevice according to the driver speficied by the importer
+: "${NETIF_FIND_DRIVER:=}"
+
+if [[ $NETIF_FIND_DRIVER ]]; then
+	unset NETIFS
+	declare -A NETIFS
+	netif_find_driver
+fi
+
+net_forwarding_dir=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+if [[ -f $net_forwarding_dir/forwarding.config ]]; then
+	source "$net_forwarding_dir/forwarding.config"
+fi
+
+source "$net_forwarding_dir/../lib.sh"
+
+##############################################################################
+# Sanity checks
+
+check_tc_version()
+{
+	tc -j &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing JSON support"
+		exit $ksft_skip
+	fi
+}
+
+check_tc_erspan_support()
+{
+	local dev=$1; shift
+
+	tc filter add dev $dev ingress pref 1 handle 1 flower \
+		erspan_opts 1:0:0:0 &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing erspan support"
+		return $ksft_skip
+	fi
+	tc filter del dev $dev ingress pref 1 handle 1 flower \
+		erspan_opts 1:0:0:0 &> /dev/null
+}
+
+# Old versions of tc don't understand "mpls_uc"
+check_tc_mpls_support()
+{
+	local dev=$1; shift
+
+	tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
+		matchall action pipe &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing MPLS support"
+		return $ksft_skip
+	fi
+	tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
+		matchall
+}
+
+# Old versions of tc produce invalid json output for mpls lse statistics
+check_tc_mpls_lse_stats()
+{
+	local dev=$1; shift
+	local ret;
+
+	tc filter add dev $dev ingress protocol mpls_uc pref 1 handle 1 \
+		flower mpls lse depth 2                                 \
+		action continue &> /dev/null
+
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc-flower is missing extended MPLS support"
+		return $ksft_skip
+	fi
+
+	tc -j filter show dev $dev ingress protocol mpls_uc | jq . &> /dev/null
+	ret=$?
+	tc filter del dev $dev ingress protocol mpls_uc pref 1 handle 1 \
+		flower
+
+	if [[ $ret -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc-flower produces invalid json output for extended MPLS filters"
+		return $ksft_skip
+	fi
+}
+
+check_tc_shblock_support()
+{
+	tc filter help 2>&1 | grep block &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing shared block support"
+		exit $ksft_skip
+	fi
+}
+
+check_tc_chain_support()
+{
+	tc help 2>&1|grep chain &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing chain support"
+		exit $ksft_skip
+	fi
+}
+
+check_tc_action_hw_stats_support()
+{
+	tc actions help 2>&1 | grep -q hw_stats
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing action hw_stats support"
+		exit $ksft_skip
+	fi
+}
+
+check_tc_fp_support()
+{
+	tc qdisc add dev lo mqprio help 2>&1 | grep -q "fp "
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: iproute2 too old; tc is missing frame preemption support"
+		exit $ksft_skip
+	fi
+}
+
+check_ethtool_lanes_support()
+{
+	ethtool --help 2>&1| grep lanes &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: ethtool too old; it is missing lanes support"
+		exit $ksft_skip
+	fi
+}
+
+check_ethtool_mm_support()
+{
+	ethtool --help 2>&1| grep -- '--show-mm' &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: ethtool too old; it is missing MAC Merge layer support"
+		exit $ksft_skip
+	fi
+}
+
+check_ethtool_counter_group_support()
+{
+	ethtool --help 2>&1| grep -- '--all-groups' &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: ethtool too old; it is missing standard counter group support"
+		exit $ksft_skip
+	fi
+}
+
+check_ethtool_pmac_std_stats_support()
+{
+	local dev=$1; shift
+	local grp=$1; shift
+
+	[ 0 -ne $(ethtool --json -S $dev --all-groups --src pmac 2>/dev/null \
+		| jq ".[].\"$grp\" | length") ]
+}
+
+check_locked_port_support()
+{
+	if ! bridge -d link show | grep -q " locked"; then
+		echo "SKIP: iproute2 too old; Locked port feature not supported."
+		return $ksft_skip
+	fi
+}
+
+check_port_mab_support()
+{
+	if ! bridge -d link show | grep -q "mab"; then
+		echo "SKIP: iproute2 too old; MacAuth feature not supported."
+		return $ksft_skip
+	fi
+}
+
+if [[ "$(id -u)" -ne 0 ]]; then
+	echo "SKIP: need root privileges"
+	exit $ksft_skip
+fi
+
+check_driver()
+{
+	local dev=$1; shift
+	local expected=$1; shift
+	local driver_name=`driver_name_get $dev`
+
+	if [[ $driver_name != $expected ]]; then
+		echo "SKIP: expected driver $expected for $dev, got $driver_name instead"
+		exit $ksft_skip
+	fi
+}
+
+if [[ "$CHECK_TC" = "yes" ]]; then
+	check_tc_version
+fi
+
+# IPv6 support was added in v3.0
+check_mtools_version()
+{
+	local version="$(msend -v)"
+	local major
+
+	version=${version##msend version }
+	major=$(echo $version | cut -d. -f1)
+
+	if [ $major -lt 3 ]; then
+		echo "SKIP: expected mtools version 3.0, got $version"
+		exit $ksft_skip
+	fi
+}
+
+if [[ "$REQUIRE_JQ" = "yes" ]]; then
+	require_command jq
+fi
+if [[ "$REQUIRE_MZ" = "yes" ]]; then
+	require_command $MZ
+fi
+if [[ "$REQUIRE_TEAMD" = "yes" ]]; then
+	require_command $TEAMD
+fi
+if [[ "$REQUIRE_MTOOLS" = "yes" ]]; then
+	# https://github.com/troglobit/mtools
+	require_command msend
+	require_command mreceive
+	check_mtools_version
+fi
+
+##############################################################################
+# Command line options handling
+
+count=0
+
+while [[ $# -gt 0 ]]; do
+	if [[ "$count" -eq "0" ]]; then
+		unset NETIFS
+		declare -A NETIFS
+	fi
+	count=$((count + 1))
+	NETIFS[p$count]="$1"
+	shift
+done
+
+##############################################################################
+# Network interfaces configuration
+
+if [[ ! -v NUM_NETIFS ]]; then
+	echo "SKIP: importer does not define \"NUM_NETIFS\""
+	exit $ksft_skip
+fi
+
+if (( NUM_NETIFS > ${#NETIFS[@]} )); then
+	echo "SKIP: Importer requires $NUM_NETIFS NETIFS, but only ${#NETIFS[@]} are defined (${NETIFS[@]})"
+	exit $ksft_skip
+fi
+
+for i in $(seq ${#NETIFS[@]}); do
+	if [[ ! ${NETIFS[p$i]} ]]; then
+		echo "SKIP: NETIFS[p$i] not given"
+		exit $ksft_skip
+	fi
+done
+
+create_netif_veth()
+{
+	local i
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		local j=$((i+1))
+
+		if [ -z ${NETIFS[p$i]} ]; then
+			echo "SKIP: Cannot create interface. Name not specified"
+			exit $ksft_skip
+		fi
+
+		ip link show dev ${NETIFS[p$i]} &> /dev/null
+		if [[ $? -ne 0 ]]; then
+			ip link add ${NETIFS[p$i]} type veth \
+				peer name ${NETIFS[p$j]}
+			if [[ $? -ne 0 ]]; then
+				echo "Failed to create netif"
+				exit 1
+			fi
+		fi
+		i=$j
+	done
+}
+
+create_netif()
+{
+	case "$NETIF_TYPE" in
+	veth) create_netif_veth
+	      ;;
+	*) echo "Can not create interfaces of type \'$NETIF_TYPE\'"
+	   exit 1
+	   ;;
+	esac
+}
+
+declare -A MAC_ADDR_ORIG
+mac_addr_prepare()
+{
+	local new_addr=
+	local dev=
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		dev=${NETIFS[p$i]}
+		new_addr=$(printf "00:01:02:03:04:%02x" $i)
+
+		MAC_ADDR_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].address')
+		# Strip quotes
+		MAC_ADDR_ORIG["$dev"]=${MAC_ADDR_ORIG["$dev"]//\"/}
+		ip link set dev $dev address $new_addr
+	done
+}
+
+mac_addr_restore()
+{
+	local dev=
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		dev=${NETIFS[p$i]}
+		ip link set dev $dev address ${MAC_ADDR_ORIG["$dev"]}
+	done
+}
+
+if [[ "$NETIF_CREATE" = "yes" ]]; then
+	create_netif
+fi
+
+if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
+	mac_addr_prepare
+fi
+
+for ((i = 1; i <= NUM_NETIFS; ++i)); do
+	ip link show dev ${NETIFS[p$i]} &> /dev/null
+	if [[ $? -ne 0 ]]; then
+		echo "SKIP: could not find all required interfaces"
+		exit $ksft_skip
+	fi
+done
+
+##############################################################################
+# Helpers
+
+not()
+{
+	"$@"
+	[[ $? != 0 ]]
+}
+
+get_max()
+{
+	local arr=("$@")
+
+	max=${arr[0]}
+	for cur in ${arr[@]}; do
+		if [[ $cur -gt $max ]]; then
+			max=$cur
+		fi
+	done
+
+	echo $max
+}
+
+grep_bridge_fdb()
+{
+	local addr=$1; shift
+	local word
+	local flag
+
+	if [ "$1" == "self" ] || [ "$1" == "master" ]; then
+		word=$1; shift
+		if [ "$1" == "-v" ]; then
+			flag=$1; shift
+		fi
+	fi
+
+	$@ | grep $addr | grep $flag "$word"
+}
+
+wait_for_port_up()
+{
+	"$@" | grep -q "Link detected: yes"
+}
+
+wait_for_offload()
+{
+	"$@" | grep -q offload
+}
+
+wait_for_trap()
+{
+	"$@" | grep -q trap
+}
+
+setup_wait_dev()
+{
+	local dev=$1; shift
+	local wait_time=${1:-$WAIT_TIME}; shift
+
+	setup_wait_dev_with_timeout "$dev" $INTERFACE_TIMEOUT $wait_time
+
+	if (($?)); then
+		check_err 1
+		log_test setup_wait_dev ": Interface $dev does not come up."
+		exit 1
+	fi
+}
+
+setup_wait_dev_with_timeout()
+{
+	local dev=$1; shift
+	local max_iterations=${1:-$WAIT_TIMEOUT}; shift
+	local wait_time=${1:-$WAIT_TIME}; shift
+	local i
+
+	for ((i = 1; i <= $max_iterations; ++i)); do
+		ip link show dev $dev up \
+			| grep 'state UP' &> /dev/null
+		if [[ $? -ne 0 ]]; then
+			sleep 1
+		else
+			sleep $wait_time
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+setup_wait_n()
+{
+	local num_netifs=$1; shift
+	local i
+
+	for ((i = 1; i <= num_netifs; ++i)); do
+		setup_wait_dev ${NETIFS[p$i]} 0
+	done
+
+	# Make sure links are ready.
+	sleep $WAIT_TIME
+}
+
+setup_wait()
+{
+	setup_wait_n "$NUM_NETIFS"
+}
+
+wait_for_dev()
+{
+        local dev=$1; shift
+        local timeout=${1:-$WAIT_TIMEOUT}; shift
+
+        slowwait $timeout ip link show dev $dev &> /dev/null
+        if (( $? )); then
+                check_err 1
+                log_test wait_for_dev "Interface $dev did not appear."
+                exit $EXIT_STATUS
+        fi
+}
+
+pre_cleanup()
+{
+	if [ "${PAUSE_ON_CLEANUP}" = "yes" ]; then
+		echo "Pausing before cleanup, hit any key to continue"
+		read
+	fi
+
+	if [[ "$STABLE_MAC_ADDRS" = "yes" ]]; then
+		mac_addr_restore
+	fi
+}
+
+vrf_prepare()
+{
+	ip -4 rule add pref 32765 table local
+	ip -4 rule del pref 0
+	ip -6 rule add pref 32765 table local
+	ip -6 rule del pref 0
+}
+
+vrf_cleanup()
+{
+	ip -6 rule add pref 0 table local
+	ip -6 rule del pref 32765
+	ip -4 rule add pref 0 table local
+	ip -4 rule del pref 32765
+}
+
+adf_vrf_prepare()
+{
+	vrf_prepare
+	defer vrf_cleanup
+}
+
+__last_tb_id=0
+declare -A __TB_IDS
+
+__vrf_td_id_assign()
+{
+	local vrf_name=$1
+
+	__last_tb_id=$((__last_tb_id + 1))
+	__TB_IDS[$vrf_name]=$__last_tb_id
+	return $__last_tb_id
+}
+
+__vrf_td_id_lookup()
+{
+	local vrf_name=$1
+
+	return ${__TB_IDS[$vrf_name]}
+}
+
+vrf_create()
+{
+	local vrf_name=$1
+	local tb_id
+
+	__vrf_td_id_assign $vrf_name
+	tb_id=$?
+
+	ip link add dev $vrf_name type vrf table $tb_id
+	ip -4 route add table $tb_id unreachable default metric 4278198272
+	ip -6 route add table $tb_id unreachable default metric 4278198272
+}
+
+vrf_destroy()
+{
+	local vrf_name=$1
+	local tb_id
+
+	__vrf_td_id_lookup $vrf_name
+	tb_id=$?
+
+	ip -6 route del table $tb_id unreachable default metric 4278198272
+	ip -4 route del table $tb_id unreachable default metric 4278198272
+	ip link del dev $vrf_name
+}
+
+__addr_add_del()
+{
+	local if_name=$1
+	local add_del=$2
+	local array
+
+	shift
+	shift
+	array=("${@}")
+
+	for addrstr in "${array[@]}"; do
+		ip address $add_del $addrstr dev $if_name
+	done
+}
+
+__simple_if_init()
+{
+	local if_name=$1; shift
+	local vrf_name=$1; shift
+	local addrs=("${@}")
+
+	ip link set dev $if_name master $vrf_name
+	ip link set dev $if_name up
+
+	__addr_add_del $if_name add "${addrs[@]}"
+}
+
+__simple_if_fini()
+{
+	local if_name=$1; shift
+	local addrs=("${@}")
+
+	__addr_add_del $if_name del "${addrs[@]}"
+
+	ip link set dev $if_name down
+	ip link set dev $if_name nomaster
+}
+
+simple_if_init()
+{
+	local if_name=$1
+	local vrf_name
+	local array
+
+	shift
+	vrf_name=v$if_name
+	array=("${@}")
+
+	vrf_create $vrf_name
+	ip link set dev $vrf_name up
+	__simple_if_init $if_name $vrf_name "${array[@]}"
+}
+
+simple_if_fini()
+{
+	local if_name=$1
+	local vrf_name
+	local array
+
+	shift
+	vrf_name=v$if_name
+	array=("${@}")
+
+	__simple_if_fini $if_name "${array[@]}"
+	vrf_destroy $vrf_name
+}
+
+adf_simple_if_init()
+{
+	simple_if_init "$@"
+	defer simple_if_fini "$@"
+}
+
+tunnel_create()
+{
+	local name=$1; shift
+	local type=$1; shift
+	local local=$1; shift
+	local remote=$1; shift
+
+	ip link add name $name type $type \
+	   local $local remote $remote "$@"
+	ip link set dev $name up
+}
+
+tunnel_destroy()
+{
+	local name=$1; shift
+
+	ip link del dev $name
+}
+
+vlan_create()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local vrf=$1; shift
+	local ips=("${@}")
+	local name=$if_name.$vid
+
+	ip link add name $name link $if_name type vlan id $vid
+	if [ "$vrf" != "" ]; then
+		ip link set dev $name master $vrf
+	fi
+	ip link set dev $name up
+	__addr_add_del $name add "${ips[@]}"
+}
+
+vlan_destroy()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local name=$if_name.$vid
+
+	ip link del dev $name
+}
+
+team_create()
+{
+	local if_name=$1; shift
+	local mode=$1; shift
+
+	require_command $TEAMD
+	$TEAMD -t $if_name -d -c '{"runner": {"name": "'$mode'"}}'
+	for slave in "$@"; do
+		ip link set dev $slave down
+		ip link set dev $slave master $if_name
+		ip link set dev $slave up
+	done
+	ip link set dev $if_name up
+}
+
+team_destroy()
+{
+	local if_name=$1; shift
+
+	$TEAMD -t $if_name -k
+}
+
+master_name_get()
+{
+	local if_name=$1
+
+	ip -j link show dev $if_name | jq -r '.[]["master"]'
+}
+
+link_stats_get()
+{
+	local if_name=$1; shift
+	local dir=$1; shift
+	local stat=$1; shift
+
+	ip -j -s link show dev $if_name \
+		| jq '.[]["stats64"]["'$dir'"]["'$stat'"]'
+}
+
+link_stats_tx_packets_get()
+{
+	link_stats_get $1 tx packets
+}
+
+link_stats_rx_errors_get()
+{
+	link_stats_get $1 rx errors
+}
+
+ethtool_stats_get()
+{
+	local dev=$1; shift
+	local stat=$1; shift
+
+	ethtool -S $dev | grep "^ *$stat:" | head -n 1 | cut -d: -f2
+}
+
+ethtool_std_stats_get()
+{
+	local dev=$1; shift
+	local grp=$1; shift
+	local name=$1; shift
+	local src=$1; shift
+
+	ethtool --json -S $dev --groups $grp -- --src $src | \
+		jq '.[]."'"$grp"'"."'$name'"'
+}
+
+qdisc_stats_get()
+{
+	local dev=$1; shift
+	local handle=$1; shift
+	local selector=$1; shift
+
+	tc -j -s qdisc show dev "$dev" \
+	    | jq '.[] | select(.handle == "'"$handle"'") | '"$selector"
+}
+
+qdisc_parent_stats_get()
+{
+	local dev=$1; shift
+	local parent=$1; shift
+	local selector=$1; shift
+
+	tc -j -s qdisc show dev "$dev" invisible \
+	    | jq '.[] | select(.parent == "'"$parent"'") | '"$selector"
+}
+
+ipv6_stats_get()
+{
+	local dev=$1; shift
+	local stat=$1; shift
+
+	cat /proc/net/dev_snmp6/$dev | grep "^$stat" | cut -f2
+}
+
+hw_stats_get()
+{
+	local suite=$1; shift
+	local if_name=$1; shift
+	local dir=$1; shift
+	local stat=$1; shift
+
+	ip -j stats show dev $if_name group offload subgroup $suite |
+		jq ".[0].stats64.$dir.$stat"
+}
+
+__nh_stats_get()
+{
+	local key=$1; shift
+	local group_id=$1; shift
+	local member_id=$1; shift
+
+	ip -j -s -s nexthop show id $group_id |
+	    jq --argjson member_id "$member_id" --arg key "$key" \
+	       '.[].group_stats[] | select(.id == $member_id) | .[$key]'
+}
+
+nh_stats_get()
+{
+	local group_id=$1; shift
+	local member_id=$1; shift
+
+	__nh_stats_get packets "$group_id" "$member_id"
+}
+
+nh_stats_get_hw()
+{
+	local group_id=$1; shift
+	local member_id=$1; shift
+
+	__nh_stats_get packets_hw "$group_id" "$member_id"
+}
+
+humanize()
+{
+	local speed=$1; shift
+
+	for unit in bps Kbps Mbps Gbps; do
+		if (($(echo "$speed < 1024" | bc))); then
+			break
+		fi
+
+		speed=$(echo "scale=1; $speed / 1024" | bc)
+	done
+
+	echo "$speed${unit}"
+}
+
+rate()
+{
+	local t0=$1; shift
+	local t1=$1; shift
+	local interval=$1; shift
+
+	echo $((8 * (t1 - t0) / interval))
+}
+
+packets_rate()
+{
+	local t0=$1; shift
+	local t1=$1; shift
+	local interval=$1; shift
+
+	echo $(((t1 - t0) / interval))
+}
+
+ether_addr_to_u64()
+{
+	local addr="$1"
+	local order="$((1 << 40))"
+	local val=0
+	local byte
+
+	addr="${addr//:/ }"
+
+	for byte in $addr; do
+		byte="0x$byte"
+		val=$((val + order * byte))
+		order=$((order >> 8))
+	done
+
+	printf "0x%x" $val
+}
+
+u64_to_ether_addr()
+{
+	local val=$1
+	local byte
+	local i
+
+	for ((i = 40; i >= 0; i -= 8)); do
+		byte=$(((val & (0xff << i)) >> i))
+		printf "%02x" $byte
+		if [ $i -ne 0 ]; then
+			printf ":"
+		fi
+	done
+}
+
+ipv6_lladdr_get()
+{
+	local if_name=$1
+
+	ip -j addr show dev $if_name | \
+		jq -r '.[]["addr_info"][] | select(.scope == "link").local' | \
+		head -1
+}
+
+bridge_ageing_time_get()
+{
+	local bridge=$1
+	local ageing_time
+
+	# Need to divide by 100 to convert to seconds.
+	ageing_time=$(ip -j -d link show dev $bridge \
+		      | jq '.[]["linkinfo"]["info_data"]["ageing_time"]')
+	echo $((ageing_time / 100))
+}
+
+declare -A SYSCTL_ORIG
+sysctl_save()
+{
+	local key=$1; shift
+
+	SYSCTL_ORIG[$key]=$(sysctl -n $key)
+}
+
+sysctl_set()
+{
+	local key=$1; shift
+	local value=$1; shift
+
+	sysctl_save "$key"
+	sysctl -qw $key="$value"
+}
+
+sysctl_restore()
+{
+	local key=$1; shift
+
+	sysctl -qw $key="${SYSCTL_ORIG[$key]}"
+}
+
+forwarding_enable()
+{
+	sysctl_set net.ipv4.conf.all.forwarding 1
+	sysctl_set net.ipv6.conf.all.forwarding 1
+}
+
+forwarding_restore()
+{
+	sysctl_restore net.ipv6.conf.all.forwarding
+	sysctl_restore net.ipv4.conf.all.forwarding
+}
+
+adf_forwarding_enable()
+{
+	forwarding_enable
+	defer forwarding_restore
+}
+
+declare -A MTU_ORIG
+mtu_set()
+{
+	local dev=$1; shift
+	local mtu=$1; shift
+
+	MTU_ORIG["$dev"]=$(ip -j link show dev $dev | jq -e '.[].mtu')
+	ip link set dev $dev mtu $mtu
+}
+
+mtu_restore()
+{
+	local dev=$1; shift
+
+	ip link set dev $dev mtu ${MTU_ORIG["$dev"]}
+}
+
+tc_offload_check()
+{
+	local num_netifs=${1:-$NUM_NETIFS}
+
+	for ((i = 1; i <= num_netifs; ++i)); do
+		ethtool -k ${NETIFS[p$i]} \
+			| grep "hw-tc-offload: on" &> /dev/null
+		if [[ $? -ne 0 ]]; then
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+trap_install()
+{
+	local dev=$1; shift
+	local direction=$1; shift
+
+	# Some devices may not support or need in-hardware trapping of traffic
+	# (e.g. the veth pairs that this library creates for non-existent
+	# loopbacks). Use continue instead, so that there is a filter in there
+	# (some tests check counters), and so that other filters are still
+	# processed.
+	tc filter add dev $dev $direction pref 1 \
+		flower skip_sw action trap 2>/dev/null \
+	    || tc filter add dev $dev $direction pref 1 \
+		       flower action continue
+}
+
+trap_uninstall()
+{
+	local dev=$1; shift
+	local direction=$1; shift
+
+	tc filter del dev $dev $direction pref 1 flower
+}
+
+__icmp_capture_add_del()
+{
+	local add_del=$1; shift
+	local pref=$1; shift
+	local vsuf=$1; shift
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	tc filter $add_del dev "$tundev" ingress \
+	   proto ip$vsuf pref $pref \
+	   flower ip_proto icmp$vsuf $filter \
+	   action pass
+}
+
+icmp_capture_install()
+{
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	__icmp_capture_add_del add 100 "" "$tundev" "$filter"
+}
+
+icmp_capture_uninstall()
+{
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	__icmp_capture_add_del del 100 "" "$tundev" "$filter"
+}
+
+icmp6_capture_install()
+{
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	__icmp_capture_add_del add 100 v6 "$tundev" "$filter"
+}
+
+icmp6_capture_uninstall()
+{
+	local tundev=$1; shift
+	local filter=$1; shift
+
+	__icmp_capture_add_del del 100 v6 "$tundev" "$filter"
+}
+
+__vlan_capture_add_del()
+{
+	local add_del=$1; shift
+	local pref=$1; shift
+	local dev=$1; shift
+	local filter=$1; shift
+
+	tc filter $add_del dev "$dev" ingress \
+	   proto 802.1q pref $pref \
+	   flower $filter \
+	   action pass
+}
+
+vlan_capture_install()
+{
+	local dev=$1; shift
+	local filter=$1; shift
+
+	__vlan_capture_add_del add 100 "$dev" "$filter"
+}
+
+vlan_capture_uninstall()
+{
+	local dev=$1; shift
+	local filter=$1; shift
+
+	__vlan_capture_add_del del 100 "$dev" "$filter"
+}
+
+__dscp_capture_add_del()
+{
+	local add_del=$1; shift
+	local dev=$1; shift
+	local base=$1; shift
+	local dscp;
+
+	for prio in {0..7}; do
+		dscp=$((base + prio))
+		__icmp_capture_add_del $add_del $((dscp + 100)) "" $dev \
+				       "skip_hw ip_tos $((dscp << 2))"
+	done
+}
+
+dscp_capture_install()
+{
+	local dev=$1; shift
+	local base=$1; shift
+
+	__dscp_capture_add_del add $dev $base
+}
+
+dscp_capture_uninstall()
+{
+	local dev=$1; shift
+	local base=$1; shift
+
+	__dscp_capture_add_del del $dev $base
+}
+
+dscp_fetch_stats()
+{
+	local dev=$1; shift
+	local base=$1; shift
+
+	for prio in {0..7}; do
+		local dscp=$((base + prio))
+		local t=$(tc_rule_stats_get $dev $((dscp + 100)))
+		echo "[$dscp]=$t "
+	done
+}
+
+matchall_sink_create()
+{
+	local dev=$1; shift
+
+	tc qdisc add dev $dev clsact
+	tc filter add dev $dev ingress \
+	   pref 10000 \
+	   matchall \
+	   action drop
+}
+
+cleanup()
+{
+	pre_cleanup
+	defer_scopes_cleanup
+}
+
+multipath_eval()
+{
+	local desc="$1"
+	local weight_rp12=$2
+	local weight_rp13=$3
+	local packets_rp12=$4
+	local packets_rp13=$5
+	local weights_ratio packets_ratio diff
+
+	RET=0
+
+	if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
+		weights_ratio=$(echo "scale=2; $weight_rp12 / $weight_rp13" \
+				| bc -l)
+	else
+		weights_ratio=$(echo "scale=2; $weight_rp13 / $weight_rp12" \
+				| bc -l)
+	fi
+
+	if [[ "$packets_rp12" -eq "0" || "$packets_rp13" -eq "0" ]]; then
+	       check_err 1 "Packet difference is 0"
+	       log_test "Multipath"
+	       log_info "Expected ratio $weights_ratio"
+	       return
+	fi
+
+	if [[ "$weight_rp12" -gt "$weight_rp13" ]]; then
+		packets_ratio=$(echo "scale=2; $packets_rp12 / $packets_rp13" \
+				| bc -l)
+	else
+		packets_ratio=$(echo "scale=2; $packets_rp13 / $packets_rp12" \
+				| bc -l)
+	fi
+
+	diff=$(echo $weights_ratio - $packets_ratio | bc -l)
+	diff=${diff#-}
+
+	test "$(echo "$diff / $weights_ratio > 0.15" | bc -l)" -eq 0
+	check_err $? "Too large discrepancy between expected and measured ratios"
+	log_test "$desc"
+	log_info "Expected ratio $weights_ratio Measured ratio $packets_ratio"
+}
+
+in_ns()
+{
+	local name=$1; shift
+
+	ip netns exec $name bash <<-EOF
+		NUM_NETIFS=0
+		source lib.sh
+		$(for a in "$@"; do printf "%q${IFS:0:1}" "$a"; done)
+	EOF
+}
+
+##############################################################################
+# Tests
+
+ping_do()
+{
+	local if_name=$1
+	local dip=$2
+	local args=$3
+	local vrf_name
+
+	vrf_name=$(master_name_get $if_name)
+	ip vrf exec $vrf_name \
+		$PING $args -c $PING_COUNT -i 0.1 \
+		-w $PING_TIMEOUT $dip &> /dev/null
+}
+
+ping_test()
+{
+	RET=0
+
+	ping_do $1 $2
+	check_err $?
+	log_test "ping$3"
+}
+
+ping_test_fails()
+{
+	RET=0
+
+	ping_do $1 $2
+	check_fail $?
+	log_test "ping fails$3"
+}
+
+ping6_do()
+{
+	local if_name=$1
+	local dip=$2
+	local args=$3
+	local vrf_name
+
+	vrf_name=$(master_name_get $if_name)
+	ip vrf exec $vrf_name \
+		$PING6 $args -c $PING_COUNT -i 0.1 \
+		-w $PING_TIMEOUT $dip &> /dev/null
+}
+
+ping6_test()
+{
+	RET=0
+
+	ping6_do $1 $2
+	check_err $?
+	log_test "ping6$3"
+}
+
+ping6_test_fails()
+{
+	RET=0
+
+	ping6_do $1 $2
+	check_fail $?
+	log_test "ping6 fails$3"
+}
+
+learning_test()
+{
+	local bridge=$1
+	local br_port1=$2	# Connected to `host1_if`.
+	local host1_if=$3
+	local host2_if=$4
+	local mac=de:ad:be:ef:13:37
+	local ageing_time
+
+	RET=0
+
+	bridge -j fdb show br $bridge brport $br_port1 \
+		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+	check_fail $? "Found FDB record when should not"
+
+	# Disable unknown unicast flooding on `br_port1` to make sure
+	# packets are only forwarded through the port after a matching
+	# FDB entry was installed.
+	bridge link set dev $br_port1 flood off
+
+	ip link set $host1_if promisc on
+	tc qdisc add dev $host1_if ingress
+	tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \
+		flower dst_mac $mac action drop
+
+	$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
+	sleep 1
+
+	tc -j -s filter show dev $host1_if ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	check_fail $? "Packet reached first host when should not"
+
+	$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
+	sleep 1
+
+	bridge -j fdb show br $bridge brport $br_port1 \
+		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+	check_err $? "Did not find FDB record when should"
+
+	$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q
+	sleep 1
+
+	tc -j -s filter show dev $host1_if ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	check_err $? "Packet did not reach second host when should"
+
+	# Wait for 10 seconds after the ageing time to make sure FDB
+	# record was aged-out.
+	ageing_time=$(bridge_ageing_time_get $bridge)
+	sleep $((ageing_time + 10))
+
+	bridge -j fdb show br $bridge brport $br_port1 \
+		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+	check_fail $? "Found FDB record when should not"
+
+	bridge link set dev $br_port1 learning off
+
+	$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q
+	sleep 1
+
+	bridge -j fdb show br $bridge brport $br_port1 \
+		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null
+	check_fail $? "Found FDB record when should not"
+
+	bridge link set dev $br_port1 learning on
+
+	tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower
+	tc qdisc del dev $host1_if ingress
+	ip link set $host1_if promisc off
+
+	bridge link set dev $br_port1 flood on
+
+	log_test "FDB learning"
+}
+
+flood_test_do()
+{
+	local should_flood=$1
+	local mac=$2
+	local ip=$3
+	local host1_if=$4
+	local host2_if=$5
+	local err=0
+
+	# Add an ACL on `host2_if` which will tell us whether the packet
+	# was flooded to it or not.
+	ip link set $host2_if promisc on
+	tc qdisc add dev $host2_if ingress
+	tc filter add dev $host2_if ingress protocol ip pref 1 handle 101 \
+		flower dst_mac $mac action drop
+
+	$MZ $host1_if -c 1 -p 64 -b $mac -B $ip -t ip -q
+	sleep 1
+
+	tc -j -s filter show dev $host2_if ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	if [[ $? -ne 0 && $should_flood == "true" || \
+	      $? -eq 0 && $should_flood == "false" ]]; then
+		err=1
+	fi
+
+	tc filter del dev $host2_if ingress protocol ip pref 1 handle 101 flower
+	tc qdisc del dev $host2_if ingress
+	ip link set $host2_if promisc off
+
+	return $err
+}
+
+flood_unicast_test()
+{
+	local br_port=$1
+	local host1_if=$2
+	local host2_if=$3
+	local mac=de:ad:be:ef:13:37
+	local ip=192.0.2.100
+
+	RET=0
+
+	bridge link set dev $br_port flood off
+
+	flood_test_do false $mac $ip $host1_if $host2_if
+	check_err $? "Packet flooded when should not"
+
+	bridge link set dev $br_port flood on
+
+	flood_test_do true $mac $ip $host1_if $host2_if
+	check_err $? "Packet was not flooded when should"
+
+	log_test "Unknown unicast flood"
+}
+
+flood_multicast_test()
+{
+	local br_port=$1
+	local host1_if=$2
+	local host2_if=$3
+	local mac=01:00:5e:00:00:01
+	local ip=239.0.0.1
+
+	RET=0
+
+	bridge link set dev $br_port mcast_flood off
+
+	flood_test_do false $mac $ip $host1_if $host2_if
+	check_err $? "Packet flooded when should not"
+
+	bridge link set dev $br_port mcast_flood on
+
+	flood_test_do true $mac $ip $host1_if $host2_if
+	check_err $? "Packet was not flooded when should"
+
+	log_test "Unregistered multicast flood"
+}
+
+flood_test()
+{
+	# `br_port` is connected to `host2_if`
+	local br_port=$1
+	local host1_if=$2
+	local host2_if=$3
+
+	flood_unicast_test $br_port $host1_if $host2_if
+	flood_multicast_test $br_port $host1_if $host2_if
+}
+
+__start_traffic()
+{
+	local pktsize=$1; shift
+	local proto=$1; shift
+	local h_in=$1; shift    # Where the traffic egresses the host
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local -a mz_args=("$@")
+
+	$MZ $h_in -p $pktsize -A $sip -B $dip -c 0 \
+		-a own -b $dmac -t "$proto" -q "${mz_args[@]}" &
+	sleep 1
+}
+
+start_traffic_pktsize()
+{
+	local pktsize=$1; shift
+	local h_in=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local -a mz_args=("$@")
+
+	__start_traffic $pktsize udp "$h_in" "$sip" "$dip" "$dmac" \
+			"${mz_args[@]}"
+}
+
+start_tcp_traffic_pktsize()
+{
+	local pktsize=$1; shift
+	local h_in=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local -a mz_args=("$@")
+
+	__start_traffic $pktsize tcp "$h_in" "$sip" "$dip" "$dmac" \
+			"${mz_args[@]}"
+}
+
+start_traffic()
+{
+	local h_in=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local -a mz_args=("$@")
+
+	start_traffic_pktsize 8000 "$h_in" "$sip" "$dip" "$dmac" \
+			      "${mz_args[@]}"
+}
+
+start_tcp_traffic()
+{
+	local h_in=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local -a mz_args=("$@")
+
+	start_tcp_traffic_pktsize 8000 "$h_in" "$sip" "$dip" "$dmac" \
+				  "${mz_args[@]}"
+}
+
+stop_traffic()
+{
+	local pid=${1-%%}; shift
+
+	kill_process "$pid"
+}
+
+declare -A cappid
+declare -A capfile
+declare -A capout
+
+tcpdump_start()
+{
+	local if_name=$1; shift
+	local ns=$1; shift
+
+	capfile[$if_name]=$(mktemp)
+	capout[$if_name]=$(mktemp)
+
+	if [ -z $ns ]; then
+		ns_cmd=""
+	else
+		ns_cmd="ip netns exec ${ns}"
+	fi
+
+	if [ -z $SUDO_USER ] ; then
+		capuser=""
+	else
+		capuser="-Z $SUDO_USER"
+	fi
+
+	$ns_cmd tcpdump $TCPDUMP_EXTRA_FLAGS -e -n -Q in -i $if_name \
+		-s 65535 -B 32768 $capuser -w ${capfile[$if_name]} \
+		> "${capout[$if_name]}" 2>&1 &
+	cappid[$if_name]=$!
+
+	sleep 1
+}
+
+tcpdump_stop()
+{
+	local if_name=$1
+	local pid=${cappid[$if_name]}
+
+	$ns_cmd kill "$pid" && wait "$pid"
+	sleep 1
+}
+
+tcpdump_cleanup()
+{
+	local if_name=$1
+
+	rm ${capfile[$if_name]} ${capout[$if_name]}
+}
+
+tcpdump_show()
+{
+	local if_name=$1
+
+	tcpdump -e -n -r ${capfile[$if_name]} 2>&1
+}
+
+# return 0 if the packet wasn't seen on host2_if or 1 if it was
+mcast_packet_test()
+{
+	local mac=$1
+	local src_ip=$2
+	local ip=$3
+	local host1_if=$4
+	local host2_if=$5
+	local seen=0
+	local tc_proto="ip"
+	local mz_v6arg=""
+
+	# basic check to see if we were passed an IPv4 address, if not assume IPv6
+	if [[ ! $ip =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then
+		tc_proto="ipv6"
+		mz_v6arg="-6"
+	fi
+
+	# Add an ACL on `host2_if` which will tell us whether the packet
+	# was received by it or not.
+	tc qdisc add dev $host2_if ingress
+	tc filter add dev $host2_if ingress protocol $tc_proto pref 1 handle 101 \
+		flower ip_proto udp dst_mac $mac action drop
+
+	$MZ $host1_if $mz_v6arg -c 1 -p 64 -b $mac -A $src_ip -B $ip -t udp "dp=4096,sp=2048" -q
+	sleep 1
+
+	tc -j -s filter show dev $host2_if ingress \
+		| jq -e ".[] | select(.options.handle == 101) \
+		| select(.options.actions[0].stats.packets == 1)" &> /dev/null
+	if [[ $? -eq 0 ]]; then
+		seen=1
+	fi
+
+	tc filter del dev $host2_if ingress protocol $tc_proto pref 1 handle 101 flower
+	tc qdisc del dev $host2_if ingress
+
+	return $seen
+}
+
+brmcast_check_sg_entries()
+{
+	local report=$1; shift
+	local slist=("$@")
+	local sarg=""
+
+	for src in "${slist[@]}"; do
+		sarg="${sarg} and .source_list[].address == \"$src\""
+	done
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and .source_list != null $sarg)" &>/dev/null
+	check_err $? "Wrong *,G entry source list after $report report"
+
+	for sgent in "${slist[@]}"; do
+		bridge -j -d -s mdb show dev br0 \
+			| jq -e ".[].mdb[] | \
+				 select(.grp == \"$TEST_GROUP\" and .src == \"$sgent\")" &>/dev/null
+		check_err $? "Missing S,G entry ($sgent, $TEST_GROUP)"
+	done
+}
+
+brmcast_check_sg_fwding()
+{
+	local should_fwd=$1; shift
+	local sources=("$@")
+
+	for src in "${sources[@]}"; do
+		local retval=0
+
+		mcast_packet_test $TEST_GROUP_MAC $src $TEST_GROUP $h2 $h1
+		retval=$?
+		if [ $should_fwd -eq 1 ]; then
+			check_fail $retval "Didn't forward traffic from S,G ($src, $TEST_GROUP)"
+		else
+			check_err $retval "Forwarded traffic for blocked S,G ($src, $TEST_GROUP)"
+		fi
+	done
+}
+
+brmcast_check_sg_state()
+{
+	local is_blocked=$1; shift
+	local sources=("$@")
+	local should_fail=1
+
+	if [ $is_blocked -eq 1 ]; then
+		should_fail=0
+	fi
+
+	for src in "${sources[@]}"; do
+		bridge -j -d -s mdb show dev br0 \
+			| jq -e ".[].mdb[] | \
+				 select(.grp == \"$TEST_GROUP\" and .source_list != null) |
+				 .source_list[] |
+				 select(.address == \"$src\") |
+				 select(.timer == \"0.00\")" &>/dev/null
+		check_err_fail $should_fail $? "Entry $src has zero timer"
+
+		bridge -j -d -s mdb show dev br0 \
+			| jq -e ".[].mdb[] | \
+				 select(.grp == \"$TEST_GROUP\" and .src == \"$src\" and \
+				 .flags[] == \"blocked\")" &>/dev/null
+		check_err_fail $should_fail $? "Entry $src has blocked flag"
+	done
+}
+
+mc_join()
+{
+	local if_name=$1
+	local group=$2
+	local vrf_name=$(master_name_get $if_name)
+
+	# We don't care about actual reception, just about joining the
+	# IP multicast group and adding the L2 address to the device's
+	# MAC filtering table
+	ip vrf exec $vrf_name \
+		mreceive -g $group -I $if_name > /dev/null 2>&1 &
+	mreceive_pid=$!
+
+	sleep 1
+}
+
+mc_leave()
+{
+	kill "$mreceive_pid" && wait "$mreceive_pid"
+}
+
+mc_send()
+{
+	local if_name=$1
+	local groups=$2
+	local vrf_name=$(master_name_get $if_name)
+
+	ip vrf exec $vrf_name \
+		msend -g $groups -I $if_name -c 1 > /dev/null 2>&1
+}
+
+adf_mcd_start()
+{
+	local ifs=("$@")
+
+	local table_name="$MCD_TABLE_NAME"
+	local smcroutedir
+	local pid
+	local if
+	local i
+
+	check_command "$MCD" || return 1
+	check_command "$MC_CLI" || return 1
+
+	smcroutedir=$(mktemp -d)
+	defer rm -rf "$smcroutedir"
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		echo "phyint ${NETIFS[p$i]} enable" >> \
+			"$smcroutedir/$table_name.conf"
+	done
+
+	for if in "${ifs[@]}"; do
+		if ! ip_link_has_flag "$if" MULTICAST; then
+			ip link set dev "$if" multicast on
+			defer ip link set dev "$if" multicast off
+		fi
+
+		echo "phyint $if enable" >> \
+			"$smcroutedir/$table_name.conf"
+	done
+
+	"$MCD" -N -I "$table_name" -f "$smcroutedir/$table_name.conf" \
+		-P "$smcroutedir/$table_name.pid"
+	busywait "$BUSYWAIT_TIMEOUT" test -e "$smcroutedir/$table_name.pid"
+	pid=$(cat "$smcroutedir/$table_name.pid")
+	defer kill_process "$pid"
+}
+
+mc_cli()
+{
+	local table_name="$MCD_TABLE_NAME"
+
+        "$MC_CLI" -I "$table_name" "$@"
+}
+
+start_ip_monitor()
+{
+	local mtype=$1; shift
+	local ip=${1-ip}; shift
+
+	# start the monitor in the background
+	tmpfile=`mktemp /var/run/nexthoptestXXX`
+	mpid=`($ip monitor $mtype > $tmpfile & echo $!) 2>/dev/null`
+	sleep 0.2
+	echo "$mpid $tmpfile"
+}
+
+stop_ip_monitor()
+{
+	local mpid=$1; shift
+	local tmpfile=$1; shift
+	local el=$1; shift
+	local what=$1; shift
+
+	sleep 0.2
+	kill $mpid
+	local lines=`grep '^\w' $tmpfile | wc -l`
+	test $lines -eq $el
+	check_err $? "$what: $lines lines of events, expected $el"
+	rm -rf $tmpfile
+}
+
+hw_stats_monitor_test()
+{
+	local dev=$1; shift
+	local type=$1; shift
+	local make_suitable=$1; shift
+	local make_unsuitable=$1; shift
+	local ip=${1-ip}; shift
+
+	RET=0
+
+	# Expect a notification about enablement.
+	local ipmout=$(start_ip_monitor stats "$ip")
+	$ip stats set dev $dev ${type}_stats on
+	stop_ip_monitor $ipmout 1 "${type}_stats enablement"
+
+	# Expect a notification about offload.
+	local ipmout=$(start_ip_monitor stats "$ip")
+	$make_suitable
+	stop_ip_monitor $ipmout 1 "${type}_stats installation"
+
+	# Expect a notification about loss of offload.
+	local ipmout=$(start_ip_monitor stats "$ip")
+	$make_unsuitable
+	stop_ip_monitor $ipmout 1 "${type}_stats deinstallation"
+
+	# Expect a notification about disablement
+	local ipmout=$(start_ip_monitor stats "$ip")
+	$ip stats set dev $dev ${type}_stats off
+	stop_ip_monitor $ipmout 1 "${type}_stats disablement"
+
+	log_test "${type}_stats notifications"
+}
+
+ipv4_to_bytes()
+{
+	local IP=$1; shift
+
+	printf '%02x:' ${IP//./ } |
+	    sed 's/:$//'
+}
+
+# Convert a given IPv6 address, `IP' such that the :: token, if present, is
+# expanded, and each 16-bit group is padded with zeroes to be 4 hexadecimal
+# digits. An optional `BYTESEP' parameter can be given to further separate
+# individual bytes of each 16-bit group.
+expand_ipv6()
+{
+	local IP=$1; shift
+	local bytesep=$1; shift
+
+	local cvt_ip=${IP/::/_}
+	local colons=${cvt_ip//[^:]/}
+	local allcol=:::::::
+	# IP where :: -> the appropriate number of colons:
+	local allcol_ip=${cvt_ip/_/${allcol:${#colons}}}
+
+	echo $allcol_ip | tr : '\n' |
+	    sed s/^/0000/ |
+	    sed 's/.*\(..\)\(..\)/\1'"$bytesep"'\2/' |
+	    tr '\n' : |
+	    sed 's/:$//'
+}
+
+ipv6_to_bytes()
+{
+	local IP=$1; shift
+
+	expand_ipv6 "$IP" :
+}
+
+u16_to_bytes()
+{
+	local u16=$1; shift
+
+	printf "%04x" $u16 | sed 's/^/000/;s/^.*\(..\)\(..\)$/\1:\2/'
+}
+
+# Given a mausezahn-formatted payload (colon-separated bytes given as %02x),
+# possibly with a keyword CHECKSUM stashed where a 16-bit checksum should be,
+# calculate checksum as per RFC 1071, assuming the CHECKSUM field (if any)
+# stands for 00:00.
+payload_template_calc_checksum()
+{
+	local payload=$1; shift
+
+	(
+	    # Set input radix.
+	    echo "16i"
+	    # Push zero for the initial checksum.
+	    echo 0
+
+	    # Pad the payload with a terminating 00: in case we get an odd
+	    # number of bytes.
+	    echo "${payload%:}:00:" |
+		sed 's/CHECKSUM/00:00/g' |
+		tr '[:lower:]' '[:upper:]' |
+		# Add the word to the checksum.
+		sed 's/\(..\):\(..\):/\1\2+\n/g' |
+		# Strip the extra odd byte we pushed if left unconverted.
+		sed 's/\(..\):$//'
+
+	    echo "10000 ~ +"	# Calculate and add carry.
+	    echo "FFFF r - p"	# Bit-flip and print.
+	) |
+	    dc |
+	    tr '[:upper:]' '[:lower:]'
+}
+
+payload_template_expand_checksum()
+{
+	local payload=$1; shift
+	local checksum=$1; shift
+
+	local ckbytes=$(u16_to_bytes $checksum)
+
+	echo "$payload" | sed "s/CHECKSUM/$ckbytes/g"
+}
+
+payload_template_nbytes()
+{
+	local payload=$1; shift
+
+	payload_template_expand_checksum "${payload%:}" 0 |
+		sed 's/:/\n/g' | wc -l
+}
+
+igmpv3_is_in_get()
+{
+	local GRP=$1; shift
+	local sources=("$@")
+
+	local igmpv3
+	local nsources=$(u16_to_bytes ${#sources[@]})
+
+	# IS_IN ( $sources )
+	igmpv3=$(:
+		)"22:"$(			: Type - Membership Report
+		)"00:"$(			: Reserved
+		)"CHECKSUM:"$(			: Checksum
+		)"00:00:"$(			: Reserved
+		)"00:01:"$(			: Number of Group Records
+		)"01:"$(			: Record Type - IS_IN
+		)"00:"$(			: Aux Data Len
+		)"${nsources}:"$(		: Number of Sources
+		)"$(ipv4_to_bytes $GRP):"$(	: Multicast Address
+		)"$(for src in "${sources[@]}"; do
+			ipv4_to_bytes $src
+			echo -n :
+		    done)"$(			: Source Addresses
+		)
+	local checksum=$(payload_template_calc_checksum "$igmpv3")
+
+	payload_template_expand_checksum "$igmpv3" $checksum
+}
+
+igmpv2_leave_get()
+{
+	local GRP=$1; shift
+
+	local payload=$(:
+		)"17:"$(			: Type - Leave Group
+		)"00:"$(			: Max Resp Time - not meaningful
+		)"CHECKSUM:"$(			: Checksum
+		)"$(ipv4_to_bytes $GRP)"$(	: Group Address
+		)
+	local checksum=$(payload_template_calc_checksum "$payload")
+
+	payload_template_expand_checksum "$payload" $checksum
+}
+
+mldv2_is_in_get()
+{
+	local SIP=$1; shift
+	local GRP=$1; shift
+	local sources=("$@")
+
+	local hbh
+	local icmpv6
+	local nsources=$(u16_to_bytes ${#sources[@]})
+
+	hbh=$(:
+		)"3a:"$(			: Next Header - ICMPv6
+		)"00:"$(			: Hdr Ext Len
+		)"00:00:00:00:00:00:"$(		: Options and Padding
+		)
+
+	icmpv6=$(:
+		)"8f:"$(			: Type - MLDv2 Report
+		)"00:"$(			: Code
+		)"CHECKSUM:"$(			: Checksum
+		)"00:00:"$(			: Reserved
+		)"00:01:"$(			: Number of Group Records
+		)"01:"$(			: Record Type - IS_IN
+		)"00:"$(			: Aux Data Len
+		)"${nsources}:"$(		: Number of Sources
+		)"$(ipv6_to_bytes $GRP):"$(	: Multicast address
+		)"$(for src in "${sources[@]}"; do
+			ipv6_to_bytes $src
+			echo -n :
+		    done)"$(			: Source Addresses
+		)
+
+	local len=$(u16_to_bytes $(payload_template_nbytes $icmpv6))
+	local sudohdr=$(:
+		)"$(ipv6_to_bytes $SIP):"$(	: SIP
+		)"$(ipv6_to_bytes $GRP):"$(	: DIP is multicast address
+	        )"${len}:"$(			: Upper-layer length
+	        )"00:3a:"$(			: Zero and next-header
+	        )
+	local checksum=$(payload_template_calc_checksum ${sudohdr}${icmpv6})
+
+	payload_template_expand_checksum "$hbh$icmpv6" $checksum
+}
+
+mldv1_done_get()
+{
+	local SIP=$1; shift
+	local GRP=$1; shift
+
+	local hbh
+	local icmpv6
+
+	hbh=$(:
+		)"3a:"$(			: Next Header - ICMPv6
+		)"00:"$(			: Hdr Ext Len
+		)"00:00:00:00:00:00:"$(		: Options and Padding
+		)
+
+	icmpv6=$(:
+		)"84:"$(			: Type - MLDv1 Done
+		)"00:"$(			: Code
+		)"CHECKSUM:"$(			: Checksum
+		)"00:00:"$(			: Max Resp Delay - not meaningful
+		)"00:00:"$(			: Reserved
+		)"$(ipv6_to_bytes $GRP):"$(	: Multicast address
+		)
+
+	local len=$(u16_to_bytes $(payload_template_nbytes $icmpv6))
+	local sudohdr=$(:
+		)"$(ipv6_to_bytes $SIP):"$(	: SIP
+		)"$(ipv6_to_bytes $GRP):"$(	: DIP is multicast address
+	        )"${len}:"$(			: Upper-layer length
+	        )"00:3a:"$(			: Zero and next-header
+	        )
+	local checksum=$(payload_template_calc_checksum ${sudohdr}${icmpv6})
+
+	payload_template_expand_checksum "$hbh$icmpv6" $checksum
+}
+
+bail_on_lldpad()
+{
+	local reason1="$1"; shift
+	local reason2="$1"; shift
+	local caller=${FUNCNAME[1]}
+	local src=${BASH_SOURCE[1]}
+
+	if systemctl is-active --quiet lldpad; then
+
+		cat >/dev/stderr <<-EOF
+		WARNING: lldpad is running
+
+			lldpad will likely $reason1, and this test will
+			$reason2. Both are not supported at the same time,
+			one of them is arbitrarily going to overwrite the
+			other. That will cause spurious failures (or, unlikely,
+			passes) of this test.
+		EOF
+
+		if [[ -z $ALLOW_LLDPAD ]]; then
+			cat >/dev/stderr <<-EOF
+
+				If you want to run the test anyway, please set
+				an environment variable ALLOW_LLDPAD to a
+				non-empty string.
+			EOF
+			log_test_skip $src:$caller
+			exit $EXIT_STATUS
+		else
+			return
+		fi
+	fi
+}
+
+absval()
+{
+	local v=$1; shift
+
+	echo $((v > 0 ? v : -v))
+}
+
+has_unicast_flt()
+{
+	local dev=$1; shift
+	local mac_addr=$(mac_get $dev)
+	local tmp=$(ether_addr_to_u64 $mac_addr)
+	local promisc
+
+	ip link set $dev up
+	ip link add link $dev name macvlan-tmp type macvlan mode private
+	ip link set macvlan-tmp address $(u64_to_ether_addr $((tmp + 1)))
+	ip link set macvlan-tmp up
+
+	promisc=$(ip -j -d link show dev $dev | jq -r '.[].promiscuity')
+
+	ip link del macvlan-tmp
+
+	[[ $promisc == 1 ]] && echo "no" || echo "yes"
+}
diff --git a/tools/testing/selftests/net/forwarding/lib_sh_test.sh b/tools/testing/selftests/net/forwarding/lib_sh_test.sh
new file mode 100755
index 000000000000..b4eda6c6199e
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/lib_sh_test.sh
@@ -0,0 +1,215 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This tests the operation of lib.sh itself.
+
+ALL_TESTS="
+	test_ret
+	test_exit_status
+"
+NUM_NETIFS=0
+source lib.sh
+
+# Simulated checks.
+
+do_test()
+{
+	local msg=$1; shift
+
+	"$@"
+	check_err $? "$msg"
+}
+
+tpass()
+{
+	do_test "tpass" true
+}
+
+tfail()
+{
+	do_test "tfail" false
+}
+
+tfail2()
+{
+	do_test "tfail2" false
+}
+
+txfail()
+{
+	FAIL_TO_XFAIL=yes do_test "txfail" false
+}
+
+# Simulated tests.
+
+pass()
+{
+	RET=0
+	do_test "true" true
+	log_test "true"
+}
+
+fail()
+{
+	RET=0
+	do_test "false" false
+	log_test "false"
+}
+
+xfail()
+{
+	RET=0
+	FAIL_TO_XFAIL=yes do_test "xfalse" false
+	log_test "xfalse"
+}
+
+skip()
+{
+	RET=0
+	log_test_skip "skip"
+}
+
+slow_xfail()
+{
+	RET=0
+	xfail_on_slow do_test "slow_false" false
+	log_test "slow_false"
+}
+
+# lib.sh tests.
+
+ret_tests_run()
+{
+	local t
+
+	RET=0
+	retmsg=
+	for t in "$@"; do
+		$t
+	done
+	echo "$retmsg"
+	return $RET
+}
+
+ret_subtest()
+{
+	local expect_ret=$1; shift
+	local expect_retmsg=$1; shift
+	local -a tests=( "$@" )
+
+	local status_names=(pass fail xfail xpass skip)
+	local ret
+	local out
+
+	RET=0
+
+	# Run this in a subshell, so that our environment is intact.
+	out=$(ret_tests_run "${tests[@]}")
+	ret=$?
+
+	(( ret == expect_ret ))
+	check_err $? "RET=$ret expected $expect_ret"
+
+	[[ $out == $expect_retmsg ]]
+	check_err $? "retmsg=$out expected $expect_retmsg"
+
+	log_test "RET $(echo ${tests[@]}) -> ${status_names[$ret]}"
+}
+
+test_ret()
+{
+	ret_subtest $ksft_pass ""
+
+	ret_subtest $ksft_pass "" tpass
+	ret_subtest $ksft_fail "tfail" tfail
+	ret_subtest $ksft_xfail "txfail" txfail
+
+	ret_subtest $ksft_pass "" tpass tpass
+	ret_subtest $ksft_fail "tfail" tpass tfail
+	ret_subtest $ksft_xfail "txfail" tpass txfail
+
+	ret_subtest $ksft_fail "tfail" tfail tpass
+	ret_subtest $ksft_xfail "txfail" txfail tpass
+
+	ret_subtest $ksft_fail "tfail" tfail tfail
+	ret_subtest $ksft_fail "tfail" tfail txfail
+
+	ret_subtest $ksft_fail "tfail" txfail tfail
+
+	ret_subtest $ksft_xfail "txfail" txfail txfail
+
+	ret_subtest $ksft_fail "tfail2" tfail2 tfail
+}
+
+exit_status_tests_run()
+{
+	EXIT_STATUS=0
+	tests_run > /dev/null
+	return $EXIT_STATUS
+}
+
+exit_status_subtest()
+{
+	local expect_exit_status=$1; shift
+	local tests=$1; shift
+	local what=$1; shift
+
+	local status_names=(pass fail xfail xpass skip)
+	local exit_status
+	local out
+
+	RET=0
+
+	# Run this in a subshell, so that our environment is intact.
+	out=$(TESTS="$tests" exit_status_tests_run)
+	exit_status=$?
+
+	(( exit_status == expect_exit_status ))
+	check_err $? "EXIT_STATUS=$exit_status, expected $expect_exit_status"
+
+	log_test "EXIT_STATUS $tests$what -> ${status_names[$exit_status]}"
+}
+
+test_exit_status()
+{
+	exit_status_subtest $ksft_pass ":"
+
+	exit_status_subtest $ksft_pass "pass"
+	exit_status_subtest $ksft_fail "fail"
+	exit_status_subtest $ksft_pass "xfail"
+	exit_status_subtest $ksft_skip "skip"
+
+	exit_status_subtest $ksft_pass "pass pass"
+	exit_status_subtest $ksft_fail "pass fail"
+	exit_status_subtest $ksft_pass "pass xfail"
+	exit_status_subtest $ksft_skip "pass skip"
+
+	exit_status_subtest $ksft_fail "fail pass"
+	exit_status_subtest $ksft_pass "xfail pass"
+	exit_status_subtest $ksft_skip "skip pass"
+
+	exit_status_subtest $ksft_fail "fail fail"
+	exit_status_subtest $ksft_fail "fail xfail"
+	exit_status_subtest $ksft_fail "fail skip"
+
+	exit_status_subtest $ksft_fail "xfail fail"
+	exit_status_subtest $ksft_fail "skip fail"
+
+	exit_status_subtest $ksft_pass "xfail xfail"
+	exit_status_subtest $ksft_skip "xfail skip"
+	exit_status_subtest $ksft_skip "skip xfail"
+
+	exit_status_subtest $ksft_skip "skip skip"
+
+	KSFT_MACHINE_SLOW=yes \
+		exit_status_subtest $ksft_pass "slow_xfail" ": slow"
+
+	KSFT_MACHINE_SLOW=no \
+		exit_status_subtest $ksft_fail "slow_xfail" ": fast"
+}
+
+trap pre_cleanup EXIT
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/local_termination.sh b/tools/testing/selftests/net/forwarding/local_termination.sh
new file mode 100755
index 000000000000..892895659c7e
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/local_termination.sh
@@ -0,0 +1,597 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="standalone vlan_unaware_bridge vlan_aware_bridge test_vlan \
+	   vlan_over_vlan_unaware_bridged_port vlan_over_vlan_aware_bridged_port \
+	   vlan_over_vlan_unaware_bridge vlan_over_vlan_aware_bridge"
+NUM_NETIFS=2
+PING_COUNT=1
+REQUIRE_MTOOLS=yes
+
+source lib.sh
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+BRIDGE_ADDR="00:00:de:ad:be:ee"
+MACVLAN_ADDR="00:00:de:ad:be:ef"
+UNKNOWN_UC_ADDR1="de:ad:be:ef:ee:03"
+UNKNOWN_UC_ADDR2="de:ad:be:ef:ee:04"
+UNKNOWN_UC_ADDR3="de:ad:be:ef:ee:05"
+JOINED_IPV4_MC_ADDR="225.1.2.3"
+UNKNOWN_IPV4_MC_ADDR1="225.1.2.4"
+UNKNOWN_IPV4_MC_ADDR2="225.1.2.5"
+UNKNOWN_IPV4_MC_ADDR3="225.1.2.6"
+JOINED_IPV6_MC_ADDR="ff2e::0102:0304"
+UNKNOWN_IPV6_MC_ADDR1="ff2e::0102:0305"
+UNKNOWN_IPV6_MC_ADDR2="ff2e::0102:0306"
+UNKNOWN_IPV6_MC_ADDR3="ff2e::0102:0307"
+
+JOINED_MACV4_MC_ADDR="01:00:5e:01:02:03"
+UNKNOWN_MACV4_MC_ADDR1="01:00:5e:01:02:04"
+UNKNOWN_MACV4_MC_ADDR2="01:00:5e:01:02:05"
+UNKNOWN_MACV4_MC_ADDR3="01:00:5e:01:02:06"
+JOINED_MACV6_MC_ADDR="33:33:01:02:03:04"
+UNKNOWN_MACV6_MC_ADDR1="33:33:01:02:03:05"
+UNKNOWN_MACV6_MC_ADDR2="33:33:01:02:03:06"
+UNKNOWN_MACV6_MC_ADDR3="33:33:01:02:03:07"
+
+PTP_1588_L2_SYNC=" \
+01:1b:19:00:00:00 00:00:de:ad:be:ef 88:f7 00 02 \
+00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 00 00 00 \
+00 00 00 00 00 00 00 00 00 00"
+PTP_1588_L2_FOLLOW_UP=" \
+01:1b:19:00:00:00 00:00:de:ad:be:ef 88:f7 08 02 \
+00 2c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 00 02 00 \
+00 00 66 83 c5 f1 17 97 ed f0"
+PTP_1588_L2_PDELAY_REQ=" \
+01:80:c2:00:00:0e 00:00:de:ad:be:ef 88:f7 02 02 \
+00 36 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 06 05 7f \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 00 00"
+PTP_1588_IPV4_SYNC=" \
+01:00:5e:00:01:81 00:00:de:ad:be:ef 08:00 45 00 \
+00 48 0a 9a 40 00 01 11 cb 88 c0 00 02 01 e0 00 \
+01 81 01 3f 01 3f 00 34 a3 c8 00 02 00 2c 00 00 \
+02 00 00 00 00 00 00 00 00 00 00 00 00 00 3e 37 \
+63 ff fe cf 17 0e 00 01 00 00 00 00 00 00 00 00 \
+00 00 00 00 00 00"
+PTP_1588_IPV4_FOLLOW_UP="
+01:00:5e:00:01:81 00:00:de:ad:be:ef 08:00 45 00 \
+00 48 0a 9b 40 00 01 11 cb 87 c0 00 02 01 e0 00 \
+01 81 01 40 01 40 00 34 a3 c8 08 02 00 2c 00 00 \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e 37 \
+63 ff fe cf 17 0e 00 01 00 00 02 00 00 00 66 83 \
+c6 0f 1d 9a 61 87"
+PTP_1588_IPV4_PDELAY_REQ=" \
+01:00:5e:00:00:6b 00:00:de:ad:be:ef 08:00 45 00 \
+00 52 35 a9 40 00 01 11 a1 85 c0 00 02 01 e0 00 \
+00 6b 01 3f 01 3f 00 3e a2 bc 02 02 00 36 00 00 \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 3e 37 \
+63 ff fe cf 17 0e 00 01 00 01 05 7f 00 00 00 00 \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00"
+PTP_1588_IPV6_SYNC=" \
+33:33:00:00:01:81 00:00:de:ad:be:ef 86:dd 60 06 \
+7c 2f 00 36 11 01 20 01 0d b8 00 01 00 00 00 00 \
+00 00 00 00 00 01 ff 0e 00 00 00 00 00 00 00 00 \
+00 00 00 00 01 81 01 3f 01 3f 00 36 2e 92 00 02 \
+00 2c 00 00 02 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 00 00 00 \
+00 00 00 00 00 00 00 00 00 00 00 00"
+PTP_1588_IPV6_FOLLOW_UP=" \
+33:33:00:00:01:81 00:00:de:ad:be:ef 86:dd 60 0a \
+00 bc 00 36 11 01 20 01 0d b8 00 01 00 00 00 00 \
+00 00 00 00 00 01 ff 0e 00 00 00 00 00 00 00 00 \
+00 00 00 00 01 81 01 40 01 40 00 36 2e 92 08 02 \
+00 2c 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 00 02 00 \
+00 00 66 83 c6 2a 32 09 bd 74 00 00"
+PTP_1588_IPV6_PDELAY_REQ=" \
+33:33:00:00:00:6b 00:00:de:ad:be:ef 86:dd 60 0c \
+5c fd 00 40 11 01 fe 80 00 00 00 00 00 00 3c 37 \
+63 ff fe cf 17 0e ff 02 00 00 00 00 00 00 00 00 \
+00 00 00 00 00 6b 01 3f 01 3f 00 40 b4 54 02 02 \
+00 36 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 3e 37 63 ff fe cf 17 0e 00 01 00 01 05 7f \
+00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \
+00 00 00 00 00 00"
+
+# Disable promisc to ensure we don't receive unknown MAC DA packets
+export TCPDUMP_EXTRA_FLAGS="-pl"
+
+h1=${NETIFS[p1]}
+h2=${NETIFS[p2]}
+
+send_raw()
+{
+	local if_name=$1; shift
+	local pkt="$1"; shift
+	local smac=$(mac_get $if_name)
+
+	pkt="${pkt/00:00:de:ad:be:ef/$smac}"
+
+	$MZ -q $if_name "$pkt"
+}
+
+send_uc_ipv4()
+{
+	local if_name=$1
+	local dmac=$2
+
+	ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
+	ping_do $if_name $H2_IPV4
+	ip neigh del $H2_IPV4 dev $if_name
+}
+
+check_rcv()
+{
+	local if_name=$1; shift
+	local type=$1; shift
+	local pattern=$1; shift
+	local should_receive=$1; shift
+	local test_name="$1"; shift
+	local should_fail=
+
+	[ $should_receive = true ] && should_fail=0 || should_fail=1
+	RET=0
+
+	tcpdump_show $if_name | grep -q "$pattern"
+
+	check_err_fail "$should_fail" "$?" "reception"
+
+	log_test "$test_name: $type"
+}
+
+mc_route_prepare()
+{
+	local if_name=$1
+	local vrf_name=$(master_name_get $if_name)
+
+	ip route add 225.100.1.0/24 dev $if_name vrf $vrf_name
+	ip -6 route add ff2e::/64 dev $if_name vrf $vrf_name
+}
+
+mc_route_destroy()
+{
+	local if_name=$1
+	local vrf_name=$(master_name_get $if_name)
+
+	ip route del 225.100.1.0/24 dev $if_name vrf $vrf_name
+	ip -6 route del ff2e::/64 dev $if_name vrf $vrf_name
+}
+
+run_test()
+{
+	local send_if_name=$1; shift
+	local rcv_if_name=$1; shift
+	local skip_ptp=$1; shift
+	local no_unicast_flt=$1; shift
+	local test_name="$1"; shift
+	local smac=$(mac_get $send_if_name)
+	local rcv_dmac=$(mac_get $rcv_if_name)
+	local should_receive
+
+	setup_wait
+
+	tcpdump_start $rcv_if_name
+
+	mc_route_prepare $send_if_name
+	mc_route_prepare $rcv_if_name
+
+	send_uc_ipv4 $send_if_name $rcv_dmac
+	send_uc_ipv4 $send_if_name $MACVLAN_ADDR
+	send_uc_ipv4 $send_if_name $UNKNOWN_UC_ADDR1
+
+	ip link set dev $rcv_if_name promisc on
+	send_uc_ipv4 $send_if_name $UNKNOWN_UC_ADDR2
+	mc_send $send_if_name $UNKNOWN_IPV4_MC_ADDR2
+	mc_send $send_if_name $UNKNOWN_IPV6_MC_ADDR2
+	ip link set dev $rcv_if_name promisc off
+
+	mc_join $rcv_if_name $JOINED_IPV4_MC_ADDR
+	mc_send $send_if_name $JOINED_IPV4_MC_ADDR
+	mc_leave
+
+	mc_join $rcv_if_name $JOINED_IPV6_MC_ADDR
+	mc_send $send_if_name $JOINED_IPV6_MC_ADDR
+	mc_leave
+
+	mc_send $send_if_name $UNKNOWN_IPV4_MC_ADDR1
+	mc_send $send_if_name $UNKNOWN_IPV6_MC_ADDR1
+
+	ip link set dev $rcv_if_name allmulticast on
+	send_uc_ipv4 $send_if_name $UNKNOWN_UC_ADDR3
+	mc_send $send_if_name $UNKNOWN_IPV4_MC_ADDR3
+	mc_send $send_if_name $UNKNOWN_IPV6_MC_ADDR3
+	ip link set dev $rcv_if_name allmulticast off
+
+	mc_route_destroy $rcv_if_name
+	mc_route_destroy $send_if_name
+
+	if [ $skip_ptp = false ]; then
+		ip maddress add 01:1b:19:00:00:00 dev $rcv_if_name
+		send_raw $send_if_name "$PTP_1588_L2_SYNC"
+		send_raw $send_if_name "$PTP_1588_L2_FOLLOW_UP"
+		ip maddress del 01:1b:19:00:00:00 dev $rcv_if_name
+
+		ip maddress add 01:80:c2:00:00:0e dev $rcv_if_name
+		send_raw $send_if_name "$PTP_1588_L2_PDELAY_REQ"
+		ip maddress del 01:80:c2:00:00:0e dev $rcv_if_name
+
+		mc_join $rcv_if_name 224.0.1.129
+		send_raw $send_if_name "$PTP_1588_IPV4_SYNC"
+		send_raw $send_if_name "$PTP_1588_IPV4_FOLLOW_UP"
+		mc_leave
+
+		mc_join $rcv_if_name 224.0.0.107
+		send_raw $send_if_name "$PTP_1588_IPV4_PDELAY_REQ"
+		mc_leave
+
+		mc_join $rcv_if_name ff0e::181
+		send_raw $send_if_name "$PTP_1588_IPV6_SYNC"
+		send_raw $send_if_name "$PTP_1588_IPV6_FOLLOW_UP"
+		mc_leave
+
+		mc_join $rcv_if_name ff02::6b
+		send_raw $send_if_name "$PTP_1588_IPV6_PDELAY_REQ"
+		mc_leave
+	fi
+
+	sleep 1
+
+	tcpdump_stop $rcv_if_name
+
+	check_rcv $rcv_if_name "Unicast IPv4 to primary MAC address" \
+		"$smac > $rcv_dmac, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	check_rcv $rcv_if_name "Unicast IPv4 to macvlan MAC address" \
+		"$smac > $MACVLAN_ADDR, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	[ $no_unicast_flt = true ] && should_receive=true || should_receive=false
+	check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address" \
+		"$smac > $UNKNOWN_UC_ADDR1, ethertype IPv4 (0x0800)" \
+		$should_receive "$test_name"
+
+	check_rcv $rcv_if_name "Unicast IPv4 to unknown MAC address, promisc" \
+		"$smac > $UNKNOWN_UC_ADDR2, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	[ $no_unicast_flt = true ] && should_receive=true || should_receive=false
+	check_rcv $rcv_if_name \
+		"Unicast IPv4 to unknown MAC address, allmulti" \
+		"$smac > $UNKNOWN_UC_ADDR3, ethertype IPv4 (0x0800)" \
+		$should_receive "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv4 to joined group" \
+		"$smac > $JOINED_MACV4_MC_ADDR, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	xfail \
+		check_rcv $rcv_if_name \
+			"Multicast IPv4 to unknown group" \
+			"$smac > $UNKNOWN_MACV4_MC_ADDR1, ethertype IPv4 (0x0800)" \
+			false "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv4 to unknown group, promisc" \
+		"$smac > $UNKNOWN_MACV4_MC_ADDR2, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv4 to unknown group, allmulti" \
+		"$smac > $UNKNOWN_MACV4_MC_ADDR3, ethertype IPv4 (0x0800)" \
+		true "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv6 to joined group" \
+		"$smac > $JOINED_MACV6_MC_ADDR, ethertype IPv6 (0x86dd)" \
+		true "$test_name"
+
+	xfail \
+		check_rcv $rcv_if_name "Multicast IPv6 to unknown group" \
+			"$smac > $UNKNOWN_MACV6_MC_ADDR1, ethertype IPv6 (0x86dd)" \
+			false "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv6 to unknown group, promisc" \
+		"$smac > $UNKNOWN_MACV6_MC_ADDR2, ethertype IPv6 (0x86dd)" \
+		true "$test_name"
+
+	check_rcv $rcv_if_name "Multicast IPv6 to unknown group, allmulti" \
+		"$smac > $UNKNOWN_MACV6_MC_ADDR3, ethertype IPv6 (0x86dd)" \
+		true "$test_name"
+
+	if [ $skip_ptp = false ]; then
+		check_rcv $rcv_if_name "1588v2 over L2 transport, Sync" \
+			"ethertype PTP (0x88f7).* PTPv2.* msg type : sync msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over L2 transport, Follow-Up" \
+			"ethertype PTP (0x88f7).* PTPv2.* msg type : follow up msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over L2 transport, Peer Delay Request" \
+			"ethertype PTP (0x88f7).* PTPv2.* msg type : peer delay req msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv4, Sync" \
+			"ethertype IPv4 (0x0800).* PTPv2.* msg type : sync msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv4, Follow-Up" \
+			"ethertype IPv4 (0x0800).* PTPv2.* msg type : follow up msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv4, Peer Delay Request" \
+			"ethertype IPv4 (0x0800).* PTPv2.* msg type : peer delay req msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv6, Sync" \
+			"ethertype IPv6 (0x86dd).* PTPv2.* msg type : sync msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv6, Follow-Up" \
+			"ethertype IPv6 (0x86dd).* PTPv2.* msg type : follow up msg" \
+			true "$test_name"
+
+		check_rcv $rcv_if_name "1588v2 over IPv6, Peer Delay Request" \
+			"ethertype IPv6 (0x86dd).* PTPv2.* msg type : peer delay req msg" \
+			true "$test_name"
+	fi
+
+	tcpdump_cleanup $rcv_if_name
+}
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h1_vlan_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 100 v$h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_vlan_destroy()
+{
+	vlan_destroy $h1 100
+	simple_if_fini $h1
+}
+
+h2_vlan_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 100 v$h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_vlan_destroy()
+{
+	vlan_destroy $h2 100
+	simple_if_fini $h2
+}
+
+bridge_create()
+{
+	local vlan_filtering=$1
+
+	ip link add br0 type bridge vlan_filtering $vlan_filtering
+	ip link set br0 address $BRIDGE_ADDR
+	ip link set br0 up
+
+	ip link set $h2 master br0
+	ip link set $h2 up
+}
+
+bridge_destroy()
+{
+	ip link del br0
+}
+
+macvlan_create()
+{
+	local lower=$1
+
+	ip link add link $lower name macvlan0 type macvlan mode private
+	ip link set macvlan0 address $MACVLAN_ADDR
+	ip link set macvlan0 up
+}
+
+macvlan_destroy()
+{
+	ip link del macvlan0
+}
+
+standalone()
+{
+	local no_unicast_flt=true
+	local skip_ptp=false
+
+	if [ $(has_unicast_flt $h2) = yes ]; then
+		no_unicast_flt=false
+	fi
+
+	h1_create
+	h2_create
+	macvlan_create $h2
+
+	run_test $h1 $h2 $skip_ptp $no_unicast_flt "$h2"
+
+	macvlan_destroy
+	h2_destroy
+	h1_destroy
+}
+
+test_bridge()
+{
+	local no_unicast_flt=true
+	local vlan_filtering=$1
+	local skip_ptp=true
+
+	h1_create
+	bridge_create $vlan_filtering
+	simple_if_init br0 $H2_IPV4/24 $H2_IPV6/64
+	macvlan_create br0
+
+	run_test $h1 br0 $skip_ptp $no_unicast_flt \
+		"vlan_filtering=$vlan_filtering bridge"
+
+	macvlan_destroy
+	simple_if_fini br0 $H2_IPV4/24 $H2_IPV6/64
+	bridge_destroy
+	h1_destroy
+}
+
+vlan_unaware_bridge()
+{
+	test_bridge 0
+}
+
+vlan_aware_bridge()
+{
+	test_bridge 1
+}
+
+test_vlan()
+{
+	local no_unicast_flt=true
+	local skip_ptp=false
+
+	if [ $(has_unicast_flt $h2) = yes ]; then
+		no_unicast_flt=false
+	fi
+
+	h1_vlan_create
+	h2_vlan_create
+	macvlan_create $h2.100
+
+	run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt "VLAN upper"
+
+	macvlan_destroy
+	h2_vlan_destroy
+	h1_vlan_destroy
+}
+
+vlan_over_bridged_port()
+{
+	local no_unicast_flt=true
+	local vlan_filtering=$1
+	local skip_ptp=false
+
+	# br_manage_promisc() will not force a single vlan_filtering port to
+	# promiscuous mode, so we should still expect unicast filtering to take
+	# place if the device can do it.
+	if [ $(has_unicast_flt $h2) = yes ] && [ $vlan_filtering = 1 ]; then
+		no_unicast_flt=false
+	fi
+
+	h1_vlan_create
+	h2_vlan_create
+	bridge_create $vlan_filtering
+	macvlan_create $h2.100
+
+	run_test $h1.100 $h2.100 $skip_ptp $no_unicast_flt \
+		"VLAN over vlan_filtering=$vlan_filtering bridged port"
+
+	macvlan_destroy
+	bridge_destroy
+	h2_vlan_destroy
+	h1_vlan_destroy
+}
+
+vlan_over_vlan_unaware_bridged_port()
+{
+	vlan_over_bridged_port 0
+}
+
+vlan_over_vlan_aware_bridged_port()
+{
+	vlan_over_bridged_port 1
+}
+
+vlan_over_bridge()
+{
+	local no_unicast_flt=true
+	local vlan_filtering=$1
+	local skip_ptp=true
+
+	h1_vlan_create
+	bridge_create $vlan_filtering
+	simple_if_init br0
+	vlan_create br0 100 vbr0 $H2_IPV4/24 $H2_IPV6/64
+	macvlan_create br0.100
+
+	if [ $vlan_filtering = 1 ]; then
+		bridge vlan add dev $h2 vid 100 master
+		bridge vlan add dev br0 vid 100 self
+	fi
+
+	run_test $h1.100 br0.100 $skip_ptp $no_unicast_flt \
+		"VLAN over vlan_filtering=$vlan_filtering bridge"
+
+	if [ $vlan_filtering = 1 ]; then
+		bridge vlan del dev br0 vid 100 self
+		bridge vlan del dev $h2 vid 100 master
+	fi
+
+	macvlan_destroy
+	vlan_destroy br0 100
+	simple_if_fini br0
+	bridge_destroy
+	h1_vlan_destroy
+}
+
+vlan_over_vlan_unaware_bridge()
+{
+	vlan_over_bridge 0
+}
+
+vlan_over_vlan_aware_bridge()
+{
+	vlan_over_bridge 1
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set $h2 down
+	ip link set $h1 down
+
+	vrf_cleanup
+}
+
+setup_prepare()
+{
+	vrf_prepare
+	# setup_wait() needs this
+	ip link set $h1 up
+	ip link set $h2 up
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/min_max_mtu.sh b/tools/testing/selftests/net/forwarding/min_max_mtu.sh
new file mode 100755
index 000000000000..97bb8b221bed
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/min_max_mtu.sh
@@ -0,0 +1,283 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+
+# | H1                 |
+# |                    |
+# |           $h1.10 + |
+# |     192.0.2.2/24 | |
+# | 2001:db8:1::2/64 | |
+# |                  | |
+# |              $h1 + |
+# |                  | |
+# +------------------|-+
+#                    |
+# +------------------|-+
+# | SW               | |
+# |            $swp1 + |
+# |                  | |
+# |         $swp1.10 + |
+# |     192.0.2.1/24   |
+# | 2001:db8:1::1/64   |
+# |                    |
+# +--------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	max_mtu_config_test
+	max_mtu_traffic_test
+	min_mtu_config_test
+	min_mtu_traffic_test
+"
+
+NUM_NETIFS=2
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 10 192.0.2.2/24 2001:db8:1::2/64
+	simple_if_fini $h1
+}
+
+switch_create()
+{
+	ip li set dev $swp1 up
+	vlan_create $swp1 10 "" 192.0.2.1/24 2001:db8:1::1/64
+}
+
+switch_destroy()
+{
+	ip li set dev $swp1 down
+	vlan_destroy $swp1 10
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	vrf_prepare
+
+	h1_create
+
+	switch_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	switch_destroy
+
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1.10 192.0.2.1
+}
+
+ping_ipv6()
+{
+	ping6_test $h1.10 2001:db8:1::1
+}
+
+min_max_mtu_get_if()
+{
+	local dev=$1; shift
+	local min_max=$1; shift
+
+	ip -d -j link show $dev | jq ".[].$min_max"
+}
+
+ensure_compatible_min_max_mtu()
+{
+	local min_max=$1; shift
+
+	local mtu=$(min_max_mtu_get_if ${NETIFS[p1]} $min_max)
+	local i
+
+	for ((i = 2; i <= NUM_NETIFS; ++i)); do
+		local current_mtu=$(min_max_mtu_get_if ${NETIFS[p$i]} $min_max)
+
+		if [ $current_mtu -ne $mtu ]; then
+			return 1
+		fi
+	done
+}
+
+mtu_set_if()
+{
+	local dev=$1; shift
+	local mtu=$1; shift
+	local should_fail=${1:-0}; shift
+
+	mtu_set $dev $mtu 2>/dev/null
+	check_err_fail $should_fail $? "Set MTU $mtu for $dev"
+}
+
+mtu_set_all_if()
+{
+	local mtu=$1; shift
+	local i
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		mtu_set_if ${NETIFS[p$i]} $mtu
+		mtu_set_if ${NETIFS[p$i]}.10 $mtu
+	done
+}
+
+mtu_restore_all_if()
+{
+	local i
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		mtu_restore ${NETIFS[p$i]}.10
+		mtu_restore ${NETIFS[p$i]}
+	done
+}
+
+mtu_test_ping4()
+{
+	local mtu=$1; shift
+	local should_fail=$1; shift
+
+	# Ping adds 8 bytes for ICMP header and 20 bytes for IP header
+	local ping_headers_len=$((20 + 8))
+	local pkt_size=$((mtu - ping_headers_len))
+
+	ping_do $h1.10 192.0.2.1 "-s $pkt_size -M do"
+	check_err_fail $should_fail $? "Ping, packet size: $pkt_size"
+}
+
+mtu_test_ping6()
+{
+	local mtu=$1; shift
+	local should_fail=$1; shift
+
+	# Ping adds 8 bytes for ICMP header and 40 bytes for IPv6 header
+	local ping6_headers_len=$((40 + 8))
+	local pkt_size=$((mtu - ping6_headers_len))
+
+	ping6_do $h1.10 2001:db8:1::1 "-s $pkt_size -M do"
+	check_err_fail $should_fail $? "Ping6, packet size: $pkt_size"
+}
+
+max_mtu_config_test()
+{
+	local i
+
+	RET=0
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		local dev=${NETIFS[p$i]}
+		local max_mtu=$(min_max_mtu_get_if $dev "max_mtu")
+		local should_fail
+
+		should_fail=0
+		mtu_set_if $dev $max_mtu $should_fail
+		mtu_restore $dev
+
+		should_fail=1
+		mtu_set_if $dev $((max_mtu + 1)) $should_fail
+		mtu_restore $dev
+	done
+
+	log_test "Test maximum MTU configuration"
+}
+
+max_mtu_traffic_test()
+{
+	local should_fail
+	local max_mtu
+
+	RET=0
+
+	if ! ensure_compatible_min_max_mtu "max_mtu"; then
+		log_test_xfail "Topology has incompatible maximum MTU values"
+		return
+	fi
+
+	max_mtu=$(min_max_mtu_get_if ${NETIFS[p1]} "max_mtu")
+
+	should_fail=0
+	mtu_set_all_if $max_mtu
+	mtu_test_ping4 $max_mtu $should_fail
+	mtu_test_ping6 $max_mtu $should_fail
+	mtu_restore_all_if
+
+	should_fail=1
+	mtu_set_all_if $((max_mtu - 1))
+	mtu_test_ping4 $max_mtu $should_fail
+	mtu_test_ping6 $max_mtu $should_fail
+	mtu_restore_all_if
+
+	log_test "Test traffic, packet size is maximum MTU"
+}
+
+min_mtu_config_test()
+{
+	local i
+
+	RET=0
+
+	for ((i = 1; i <= NUM_NETIFS; ++i)); do
+		local dev=${NETIFS[p$i]}
+		local min_mtu=$(min_max_mtu_get_if $dev "min_mtu")
+		local should_fail
+
+		should_fail=0
+		mtu_set_if $dev $min_mtu $should_fail
+		mtu_restore $dev
+
+		should_fail=1
+		mtu_set_if $dev $((min_mtu - 1)) $should_fail
+		mtu_restore $dev
+	done
+
+	log_test "Test minimum MTU configuration"
+}
+
+min_mtu_traffic_test()
+{
+	local should_fail=0
+	local min_mtu
+
+	RET=0
+
+	if ! ensure_compatible_min_max_mtu "min_mtu"; then
+		log_test_xfail "Topology has incompatible minimum MTU values"
+		return
+	fi
+
+	min_mtu=$(min_max_mtu_get_if ${NETIFS[p1]} "min_mtu")
+	mtu_set_all_if $min_mtu
+	mtu_test_ping4 $min_mtu $should_fail
+	# Do not test minimum MTU with IPv6, as IPv6 requires higher MTU.
+
+	mtu_restore_all_if
+
+	log_test "Test traffic, packet size is minimum MTU"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre.sh b/tools/testing/selftests/net/forwarding/mirror_gre.sh
new file mode 100755
index 000000000000..921c733ee04f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre.sh
@@ -0,0 +1,141 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" when the device to mirror to is a
+# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
+# and another gretap / ip6gretap netdevice is then capable of decapsulating the
+# traffic. Test that the payload is what is expected (ICMP ping request or
+# reply, depending on test).
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+	test_gretap_mac
+	test_ip6gretap_mac
+	test_two_spans
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $swp3 2001:db8:2::1/64
+
+	ip address del dev $h3 192.0.2.130/28
+	ip address del dev $swp3 192.0.2.129/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_mac()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local what=$1; shift
+
+	case "$direction" in
+	ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
+		;;
+	egress) local src_mac=$(mac_get $h2); local dst_mac=$(mac_get $h1)
+		;;
+	esac
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev "matchall"
+	icmp_capture_install h3-${tundev} "src_mac $src_mac dst_mac $dst_mac"
+
+	mirror_test v$h1 192.0.2.1 192.0.2.2 h3-${tundev} 100 10
+
+	icmp_capture_uninstall h3-${tundev}
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what: envelope MAC"
+}
+
+test_two_spans()
+{
+	RET=0
+
+	mirror_install $swp1 ingress gt4 "matchall"
+	mirror_install $swp1 egress gt6 "matchall"
+	quick_test_span_gre_dir gt4 8 0
+	quick_test_span_gre_dir gt6 0 8
+
+	mirror_uninstall $swp1 ingress
+	fail_test_span_gre_dir gt4 8 0
+	quick_test_span_gre_dir gt6 0 8
+
+	mirror_install $swp1 ingress gt4 "matchall"
+	mirror_uninstall $swp1 egress
+	quick_test_span_gre_dir gt4 8 0
+	fail_test_span_gre_dir gt6 0 8
+
+	mirror_uninstall $swp1 ingress
+	log_test "two simultaneously configured mirrors"
+}
+
+test_gretap()
+{
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+test_gretap_mac()
+{
+	test_span_gre_mac gt4 ingress "mirror to gretap"
+	test_span_gre_mac gt4 egress "mirror to gretap"
+}
+
+test_ip6gretap_mac()
+{
+	test_span_gre_mac gt6 ingress "mirror to ip6gretap"
+	test_span_gre_mac gt6 egress "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
new file mode 100755
index 000000000000..e3cd48e18eeb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bound.sh
@@ -0,0 +1,206 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirror                                                   |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   | +---------------------------------------------------------------------+ |
+#   | | OL                      + gt6 (ip6gretap)      + gt4 (gretap)       | |
+#   | |                         : loc=2001:db8:2::1    : loc=192.0.2.129    | |
+#   | |                         : rem=2001:db8:2::2    : rem=192.0.2.130    | |
+#   | |                         : ttl=100              : ttl=100            | |
+#   | |                         : tos=inherit          : tos=inherit        | |
+#   | +-------------------------:--|-------------------:--|-----------------+ |
+#   |                           :  |                   :  |                   |
+#   | +-------------------------:--|-------------------:--|-----------------+ |
+#   | | UL                      :  |,---------------------'                 | |
+#   | |   + $swp3               :  ||                  :                    | |
+#   | |   | 192.0.2.129/28      :  vv                  :                    | |
+#   | |   | 2001:db8:2::1/64    :  + ul (dummy)        :                    | |
+#   | +---|---------------------:----------------------:--------------------+ |
+#   +-----|---------------------:----------------------:----------------------+
+#         |                     :                      :
+#   +-----|---------------------:----------------------:----------------------+
+#   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
+#   |       192.0.2.130/28        loc=2001:db8:2::2      loc=192.0.2.130      |
+#   |       2001:db8:2::2/64      rem=2001:db8:2::1      rem=192.0.2.129      |
+#   |                             ttl=100                ttl=100              |
+#   |                             tos=inherit            tos=inherit          |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+#
+# This tests mirroring to gretap and ip6gretap configured in an overlay /
+# underlay manner, i.e. with a bound dummy device that marks underlay VRF where
+# the encapsulated packed should be routed.
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
+
+	tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+	ip link set h3-gt4 vrf v$h3
+	matchall_sink_create h3-gt4
+
+	tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+	ip link set h3-gt6 vrf v$h3
+	matchall_sink_create h3-gt6
+}
+
+h3_destroy()
+{
+	tunnel_destroy h3-gt6
+	tunnel_destroy h3-gt4
+
+	simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
+}
+
+switch_create()
+{
+	# Bridge between H1 and H2.
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+
+	# Underlay.
+
+	simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+	ip link add name ul type dummy
+	ip link set dev ul master v$swp3
+	ip link set dev ul up
+
+	# Overlay.
+
+	vrf_create vrf-ol
+	ip link set dev vrf-ol up
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit dev ul
+	ip link set dev gt4 master vrf-ol
+	ip link set dev gt4 up
+
+	tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+		      ttl 100 tos inherit dev ul allow-localremote
+	ip link set dev gt6 master vrf-ol
+	ip link set dev gt6 up
+}
+
+switch_destroy()
+{
+	vrf_destroy vrf-ol
+
+	tunnel_destroy gt6
+	tunnel_destroy gt4
+
+	simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
+
+	ip link del dev ul
+
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+test_gretap()
+{
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
+	full_test_span_gre_dir gt4 egress  0 8 "mirror to gretap w/ UL"
+}
+
+test_ip6gretap()
+{
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
+	full_test_span_gre_dir gt6 egress  0 8 "mirror to ip6gretap w/ UL"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh
new file mode 100755
index 000000000000..6c7bd33332c2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device without vlan filtering (802.1d).
+#
+# This test uses standard topology for testing mirror-to-gretap. See
+# mirror_gre_topo_lib.sh for more details. The full topology is as follows:
+#
+#  +---------------------+                             +---------------------+
+#  | H1                  |                             |                  H2 |
+#  |     + $h1           |                             |           $h2 +     |
+#  |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#  +-----|---------------+                             +---------------|-----+
+#        |                                                             |
+#  +-----|-------------------------------------------------------------|-----+
+#  | SW  o---> mirror                                                  |     |
+#  | +---|-------------------------------------------------------------|---+ |
+#  | |   + $swp1            + br1 (802.1q bridge)                $swp2 +   | |
+#  | +---------------------------------------------------------------------+ |
+#  |                                                                         |
+#  | +---------------------------------------------------------------------+ |
+#  | |                      + br2 (802.1d bridge)                          | |
+#  | |                        192.0.2.129/28                               | |
+#  | |   + $swp3              2001:db8:2::1/64                             | |
+#  | +---|-----------------------------------------------------------------+ |
+#  |     |                                          ^                    ^   |
+#  |     |                     + gt6 (ip6gretap)    | + gt4 (gretap)     |   |
+#  |     |                     : loc=2001:db8:2::1  | : loc=192.0.2.129  |   |
+#  |     |                     : rem=2001:db8:2::2 -+ : rem=192.0.2.130 -+   |
+#  |     |                     : ttl=100              : ttl=100              |
+#  |     |                     : tos=inherit          : tos=inherit          |
+#  +-----|---------------------:----------------------:----------------------+
+#        |                     :                      :
+#  +-----|---------------------:----------------------:----------------------+
+#  | H3  + $h3                 + h3-gt6(ip6gretap)    + h3-gt4 (gretap)      |
+#  |       192.0.2.130/28        loc=2001:db8:2::2      loc=192.0.2.130      |
+#  |       2001:db8:2::2/64      rem=2001:db8:2::1      rem=192.0.2.129      |
+#  |                             ttl=100                ttl=100              |
+#  |                             tos=inherit            tos=inherit          |
+#  +-------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip link add name br2 address $(mac_get $swp3) \
+		type bridge vlan_filtering 0
+	ip link set dev br2 up
+
+	ip link set dev $swp3 master br2
+	ip route add 192.0.2.130/32 dev br2
+	ip -6 route add 2001:db8:2::2/128 dev br2
+
+	ip address add dev br2 192.0.2.129/28
+	ip address add dev br2 2001:db8:2::1/64
+
+	ip address add dev $h3 192.0.2.130/28
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $h3 192.0.2.130/28
+	ip link del dev br2
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_gretap()
+{
+	ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
+		 nud permanent dev br2
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
+		nud permanent dev br2
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
new file mode 100755
index 000000000000..909ec956a5e5
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1d_vlan.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device without vlan filtering (802.1d). The device attached to that
+# bridge is a VLAN.
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+	test_gretap_stp
+	test_ip6gretap_stp
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip link add name br2 address $(mac_get $swp3) \
+		type bridge vlan_filtering 0
+	ip link set dev br2 up
+
+	vlan_create $swp3 555
+
+	ip link set dev $swp3.555 master br2
+	ip route add 192.0.2.130/32 dev br2
+	ip -6 route add 2001:db8:2::2/128 dev br2
+
+	ip address add dev br2 192.0.2.129/32
+	ip address add dev br2 2001:db8:2::1/128
+
+	vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	vlan_destroy $h3 555
+	ip link del dev br2
+	vlan_destroy $swp3 555
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_vlan_match()
+{
+	local tundev=$1; shift
+	local vlan_match=$1; shift
+	local what=$1; shift
+
+	full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
+	full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
+}
+
+test_gretap()
+{
+	test_vlan_match gt4 'skip_hw vlan_id 555 vlan_ethtype ip' \
+			"mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	test_vlan_match gt6 'skip_hw vlan_id 555 vlan_ethtype ipv6' \
+			"mirror to ip6gretap"
+}
+
+test_gretap_stp()
+{
+	# Sometimes after mirror installation, the neighbor's state is not valid.
+	# The reason is that there is no SW datapath activity related to the
+	# neighbor for the remote GRE address. Therefore whether the corresponding
+	# neighbor will be valid is a matter of luck, and the test is thus racy.
+	# Set the neighbor's state to permanent, so it would be always valid.
+	ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
+		nud permanent dev br2
+	full_test_span_gre_stp gt4 $swp3.555 "mirror to gretap"
+}
+
+test_ip6gretap_stp()
+{
+	ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
+		nud permanent dev br2
+	full_test_span_gre_stp gt6 $swp3.555 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh
new file mode 100755
index 000000000000..40ac9dd3aff1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device with vlan filtering (802.1q).
+#
+# This test uses standard topology for testing mirror-to-gretap. See
+# mirror_gre_topo_lib.sh for more details. The full topology is as follows:
+#
+#  +---------------------+                               +---------------------+
+#  | H1                  |                               |                  H2 |
+#  |     + $h1           |                               |           $h2 +     |
+#  |     | 192.0.2.1/28  |                               |  192.0.2.2/28 |     |
+#  +-----|---------------+                               +---------------|-----+
+#        |                                                               |
+#  +-----|---------------------------------------------------------------|-----+
+#  | SW  o---> mirror                                                    |     |
+#  | +---|---------------------------------------------------------------|---+ |
+#  | |   + $swp1                  + br1 (802.1q bridge)            $swp2 +   | |
+#  | |                              192.0.2.129/28                           | |
+#  | |   + $swp3                    2001:db8:2::1/64                         | |
+#  | |   | vid555                   vid555[pvid,untagged]                    | |
+#  | +---|-------------------------------------------------------------------+ |
+#  |     |                                          ^                      ^   |
+#  |     |                     + gt6 (ip6gretap)    |   + gt4 (gretap)     |   |
+#  |     |                     : loc=2001:db8:2::1  |   : loc=192.0.2.129  |   |
+#  |     |                     : rem=2001:db8:2::2 -+   : rem=192.0.2.130 -+   |
+#  |     |                     : ttl=100                : ttl=100              |
+#  |     |                     : tos=inherit            : tos=inherit          |
+#  +-----|---------------------:------------------------:----------------------+
+#        |                     :                        :
+#  +-----|---------------------:------------------------:----------------------+
+#  | H3  + $h3                 + h3-gt6(ip6gretap)      + h3-gt4 (gretap)      |
+#  |     |                       loc=2001:db8:2::2        loc=192.0.2.130      |
+#  |     + $h3.555               rem=2001:db8:2::1        rem=192.0.2.129      |
+#  |       192.0.2.130/28        ttl=100                  ttl=100              |
+#  |       2001:db8:2::2/64      tos=inherit              tos=inherit          |
+#  +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+	# Avoid changing br1's PVID while it is operational as a L3 interface.
+	ip link set dev br1 down
+
+	ip link set dev $swp3 master br1
+	bridge vlan add dev br1 vid 555 pvid untagged self
+	ip link set dev br1 up
+	ip address add dev br1 192.0.2.129/28
+	ip address add dev br1 2001:db8:2::1/64
+
+	ip -4 route add 192.0.2.130/32 dev br1
+	ip -6 route add 2001:db8:2::2/128 dev br1
+
+	vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
+	bridge vlan add dev $swp3 vid 555
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp3 nomaster
+	vlan_destroy $h3 555
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_gretap()
+{
+	ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
+		 nud permanent dev br1
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
+		nud permanent dev br1
+	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
+	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
new file mode 100755
index 000000000000..8d4ae6c952a1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
@@ -0,0 +1,276 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# bridge device with vlan filtering (802.1q), and the egress device is a team
+# device.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |     + $h1.333        |                             |        $h1.555 +     |
+# |     | 192.0.2.1/28   |                             |  192.0.2.18/28 |     |
+# +-----|----------------+                             +----------------|-----+
+#       |                               $h1                             |
+#       +--------------------------------+------------------------------+
+#                                        |
+# +--------------------------------------|------------------------------------+
+# | SW                                   o---> mirror                         |
+# |                                      |                                    |
+# |     +--------------------------------+------------------------------+     |
+# |     |                              $swp1                            |     |
+# |     + $swp1.333                                           $swp1.555 +     |
+# |       192.0.2.2/28                                    192.0.2.17/28       |
+# |                                                                           |
+# | +-----------------------------------------------------------------------+ |
+# | |                        BR1 (802.1q)                                   | |
+# | |     + lag (team)       192.0.2.129/28                                 | |
+# | |    / \                 2001:db8:2::1/64                               | |
+# | +---/---\---------------------------------------------------------------+ |
+# |    /     \                                                            ^   |
+# |   |       \                                        + gt4 (gretap)     |   |
+# |   |        \                                         loc=192.0.2.129  |   |
+# |   |         \                                        rem=192.0.2.130 -+   |
+# |   |          \                                       ttl=100              |
+# |   |           \                                      tos=inherit          |
+# |   |            \                                                          |
+# |   |             \_________________________________                        |
+# |   |                                               \                       |
+# |   + $swp3                                          + $swp4                |
+# +---|------------------------------------------------|----------------------+
+#     |                                                |
+# +---|----------------------+                     +---|----------------------+
+# |   + $h3               H3 |                     |   + $h4               H4 |
+# |     192.0.2.130/28       |                     |     192.0.2.130/28       |
+# |     2001:db8:2::2/64     |                     |     2001:db8:2::2/64     |
+# +--------------------------+                     +--------------------------+
+
+ALL_TESTS="
+	test_mirror_gretap_first
+	test_mirror_gretap_second
+"
+
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+
+require_command $ARPING
+
+vlan_host_create()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local vrf_name=$1; shift
+	local ips=("${@}")
+
+	vrf_create $vrf_name
+	ip link set dev $vrf_name up
+	vlan_create $if_name $vid $vrf_name "${ips[@]}"
+}
+
+vlan_host_destroy()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local vrf_name=$1; shift
+
+	vlan_destroy $if_name $vid
+	ip link set dev $vrf_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	vlan_host_create $h1 333 vrf-h1 192.0.2.1/28
+	ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip -4 route del 192.0.2.16/28 vrf vrf-h1
+	vlan_host_destroy $h1 333 vrf-h1
+}
+
+h2_create()
+{
+	vlan_host_create $h1 555 vrf-h2 192.0.2.18/28
+	ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17
+}
+
+h2_destroy()
+{
+	ip -4 route del 192.0.2.0/28 vrf vrf-h2
+	vlan_host_destroy $h1 555 vrf-h2
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.2.130/28
+	tc qdisc add dev $h3 clsact
+}
+
+h3_destroy()
+{
+	tc qdisc del dev $h3 clsact
+	simple_if_fini $h3 192.0.2.130/28
+}
+
+h4_create()
+{
+	simple_if_init $h4 192.0.2.130/28
+	tc qdisc add dev $h4 clsact
+}
+
+h4_destroy()
+{
+	tc qdisc del dev $h4 clsact
+	simple_if_fini $h4 192.0.2.130/28
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+	vlan_create $swp1 333 "" 192.0.2.2/28
+	vlan_create $swp1 555 "" 192.0.2.17/28
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit
+
+	ip link set dev $swp3 up
+	ip link set dev $swp4 up
+
+	ip link add name br1 address $(mac_get $swp3) \
+		type bridge vlan_filtering 1
+
+	team_create lag loadbalance $swp3 $swp4
+	ip link set dev lag master br1
+
+	ip link set dev br1 up
+	__addr_add_del br1 add 192.0.2.129/32
+	ip -4 route add 192.0.2.130/32 dev br1
+}
+
+switch_destroy()
+{
+	ip link set dev lag nomaster
+	team_destroy lag
+
+	ip -4 route del 192.0.2.130/32 dev br1
+	__addr_add_del br1 del 192.0.2.129/32
+	ip link set dev br1 down
+	ip link del dev br1
+
+	ip link set dev $swp4 down
+	ip link set dev $swp3 down
+
+	tunnel_destroy gt4
+
+	vlan_destroy $swp1 555
+	vlan_destroy $swp1 333
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp3=${NETIFS[p3]}
+	h3=${NETIFS[p4]}
+
+	swp4=${NETIFS[p5]}
+	h4=${NETIFS[p6]}
+
+	vrf_prepare
+
+	ip link set dev $h1 up
+	h1_create
+	h2_create
+	h3_create
+	h4_create
+	switch_create
+
+	forwarding_enable
+
+	trap_install $h3 ingress
+	trap_install $h4 ingress
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	trap_uninstall $h4 ingress
+	trap_uninstall $h3 ingress
+
+	forwarding_restore
+
+	switch_destroy
+	h4_destroy
+	h3_destroy
+	h2_destroy
+	h1_destroy
+	ip link set dev $h1 down
+
+	vrf_cleanup
+}
+
+test_lag_slave()
+{
+	local host_dev=$1; shift
+	local up_dev=$1; shift
+	local down_dev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	tc filter add dev $swp1 ingress pref 999 \
+		proto 802.1q flower vlan_ethtype arp \
+		action pass
+	mirror_install $swp1 ingress gt4 \
+		"proto 802.1q flower vlan_id 333"
+
+	# Test connectivity through $up_dev when $down_dev is set down.
+	ip link set dev $down_dev down
+	ip neigh flush dev br1
+	setup_wait_dev $up_dev
+	setup_wait_dev $host_dev
+	$ARPING -I br1 -qfc 1 192.0.2.130
+	sleep 2
+	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $host_dev 1 ">= 10"
+
+	# Test lack of connectivity when both slaves are down.
+	ip link set dev $up_dev down
+	sleep 2
+	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h3 1 0
+	mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h4 1 0
+
+	ip link set dev $up_dev up
+	ip link set dev $down_dev up
+	mirror_uninstall $swp1 ingress
+	tc filter del dev $swp1 ingress pref 999
+
+	log_test "$what"
+}
+
+test_mirror_gretap_first()
+{
+	test_lag_slave $h3 $swp3 $swp4 "mirror to gretap: LAG first slave"
+}
+
+test_mirror_gretap_second()
+{
+	test_lag_slave $h4 $swp4 $swp3 "mirror to gretap: LAG second slave"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
new file mode 100755
index 000000000000..65ae9d960c18
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_changes.sh
@@ -0,0 +1,254 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test how mirrors to gretap and ip6gretap react to changes to relevant
+# configuration.
+
+ALL_TESTS="
+	test_ttl
+	test_tun_up
+	test_egress_up
+	test_remote_ip
+	test_tun_del
+	test_route_del
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	# This test downs $swp3, which deletes the configured IPv6 address
+	# unless this sysctl is set.
+	sysctl_set net.ipv6.conf.$swp3.keep_addr_on_down 1
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $swp3 2001:db8:2::1/64
+
+	ip address del dev $h3 192.0.2.130/28
+	ip address del dev $swp3 192.0.2.129/28
+
+	sysctl_restore net.ipv6.conf.$swp3.keep_addr_on_down
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_ttl()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local prot=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev \
+		"prot ip flower ip_prot icmp"
+	tc filter add dev $h3 ingress pref 77 prot $prot \
+		flower skip_hw ip_ttl 50 action pass
+
+	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 0
+
+	ip link set dev $tundev type $type ttl 50
+	sleep 2
+	mirror_test v$h1 192.0.2.1 192.0.2.2 $h3 77 ">= 10"
+
+	ip link set dev $tundev type $type ttl 100
+	tc filter del dev $h3 ingress pref 77
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: TTL change"
+}
+
+test_span_gre_tun_up()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev down
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir $tundev
+
+	ip link set dev $tundev up
+
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: tunnel down/up"
+}
+
+test_span_gre_egress_up()
+{
+	local tundev=$1; shift
+	local remote_ip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $swp3 down
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir $tundev
+
+	# After setting the device up, wait for neighbor to get resolved so that
+	# we can expect mirroring to work.
+	ip link set dev $swp3 up
+	setup_wait_dev $swp3
+	ping -c 1 -I $swp3 $remote_ip &>/dev/null
+
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: egress down/up"
+}
+
+test_span_gre_remote_ip()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local correct_ip=$1; shift
+	local wrong_ip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip link set dev $tundev type $type remote $wrong_ip
+	mirror_install $swp1 ingress $tundev "matchall"
+	fail_test_span_gre_dir $tundev
+
+	ip link set dev $tundev type $type remote $correct_ip
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: remote address change"
+}
+
+test_span_gre_tun_del()
+{
+	local tundev=$1; shift
+	local type=$1; shift
+	local flags=$1; shift
+	local local_ip=$1; shift
+	local remote_ip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+	ip link del dev $tundev
+	fail_test_span_gre_dir $tundev
+
+	tunnel_create $tundev $type $local_ip $remote_ip \
+		      ttl 100 tos inherit $flags
+
+	# Recreating the tunnel doesn't reestablish mirroring, so reinstall it
+	# and verify it works for the follow-up tests.
+	mirror_uninstall $swp1 ingress
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: tunnel deleted"
+}
+
+test_span_gre_route_del()
+{
+	local tundev=$1; shift
+	local edev=$1; shift
+	local route=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+
+	ip route del $route dev $edev
+	fail_test_span_gre_dir $tundev
+
+	ip route add $route dev $edev
+	quick_test_span_gre_dir $tundev
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: underlay route removal"
+}
+
+test_ttl()
+{
+	test_span_gre_ttl gt4 gretap ip "mirror to gretap"
+	test_span_gre_ttl gt6 ip6gretap ipv6 "mirror to ip6gretap"
+}
+
+test_tun_up()
+{
+	test_span_gre_tun_up gt4 "mirror to gretap"
+	test_span_gre_tun_up gt6 "mirror to ip6gretap"
+}
+
+test_egress_up()
+{
+	test_span_gre_egress_up gt4 192.0.2.130 "mirror to gretap"
+	test_span_gre_egress_up gt6 2001:db8:2::2 "mirror to ip6gretap"
+}
+
+test_remote_ip()
+{
+	test_span_gre_remote_ip gt4 gretap 192.0.2.130 192.0.2.132 "mirror to gretap"
+	test_span_gre_remote_ip gt6 ip6gretap 2001:db8:2::2 2001:db8:2::4 "mirror to ip6gretap"
+}
+
+test_tun_del()
+{
+	test_span_gre_tun_del gt4 gretap "" \
+			      192.0.2.129 192.0.2.130 "mirror to gretap"
+	test_span_gre_tun_del gt6 ip6gretap allow-localremote \
+			      2001:db8:2::1 2001:db8:2::2 "mirror to ip6gretap"
+}
+
+test_route_del()
+{
+	test_span_gre_route_del gt4 $swp3 192.0.2.128/28 "mirror to gretap"
+	test_span_gre_route_del gt6 $swp3 2001:db8:2::/64 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
new file mode 100755
index 000000000000..3a84f3ab5856
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_flower.sh
@@ -0,0 +1,124 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# This tests flower-triggered mirroring to gretap and ip6gretap netdevices. The
+# interfaces on H1 and H2 have two addresses each. Flower match on one of the
+# addresses is configured with mirror action. It is expected that when pinging
+# this address, mirroring takes place, whereas when pinging the other one,
+# there's no mirroring.
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+
+	ip address add dev $h1 192.0.2.3/28
+	ip address add dev $h2 192.0.2.4/28
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h2 192.0.2.4/28
+	ip address del dev $h1 192.0.2.3/28
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $swp3 2001:db8:2::1/64
+
+	ip address del dev $h3 192.0.2.130/28
+	ip address del dev $swp3 192.0.2.129/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_dir_acl()
+{
+	local tundev=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+
+	test_span_gre_dir_ips "$tundev" "$forward_type" \
+			      "$backward_type" 192.0.2.3 192.0.2.4
+}
+
+fail_test_span_gre_dir_acl()
+{
+	local tundev=$1; shift
+
+	fail_test_span_gre_dir_ips "$tundev" 192.0.2.3 192.0.2.4
+}
+
+full_test_span_gre_dir_acl()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local match_dip=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev \
+		       "protocol ip flower dst_ip $match_dip"
+	fail_test_span_gre_dir $tundev
+	test_span_gre_dir_acl "$tundev" "$forward_type" "$backward_type"
+	mirror_uninstall $swp1 $direction
+
+	# Test lack of mirroring after ACL mirror is uninstalled.
+	fail_test_span_gre_dir_acl "$tundev"
+
+	log_test "$direction $what"
+}
+
+test_gretap()
+{
+	full_test_span_gre_dir_acl gt4 ingress 8 0 192.0.2.4 "ACL mirror to gretap"
+	full_test_span_gre_dir_acl gt4 egress 0 8 192.0.2.3 "ACL mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	full_test_span_gre_dir_acl gt6 ingress 8 0 192.0.2.4 "ACL mirror to ip6gretap"
+	full_test_span_gre_dir_acl gt6 egress 0 8 192.0.2.3 "ACL mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh b/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh
new file mode 100755
index 000000000000..ff7049582d35
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_lag_lacp.sh
@@ -0,0 +1,271 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# team device.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1.333         |                             |        $h1.555 +     |
+# |    | 192.0.2.1/28    |                             |  192.0.2.18/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                $h1                             |
+#      +---------------------------------+------------------------------+
+#                                        |
+# +--------------------------------------|------------------------------------+
+# | SW                                   o---> mirror                         |
+# |                                      |                                    |
+# |   +----------------------------------+------------------------------+     |
+# |   |                                $swp1                            |     |
+# |   + $swp1.333                                             $swp1.555 +     |
+# |     192.0.2.2/28                                      192.0.2.17/28       |
+# |                                                                           |
+# |                                                                           |
+# |   + gt4 (gretap)      ,-> + lag1 (team)                                   |
+# |     loc=192.0.2.129   |   | 192.0.2.129/28                                |
+# |     rem=192.0.2.130 --'   |                                               |
+# |     ttl=100               |                                               |
+# |     tos=inherit           |                                               |
+# |      _____________________|______________________                         |
+# |     /                                            \                        |
+# |    /                                              \                       |
+# |   + $swp3                                          + $swp4                |
+# +---|------------------------------------------------|----------------------+
+#     |                                                |
+# +---|------------------------------------------------|----------------------+
+# |   + $h3                                            + $h4               H3 |
+# |    \                                              /                       |
+# |     \____________________________________________/                        |
+# |                           |                                               |
+# |                           + lag2 (team)  ------>   + gt4-dst (gretap)     |
+# |                             192.0.2.130/28           loc=192.0.2.130      |
+# |                                                      rem=192.0.2.129      |
+# |                                                      ttl=100              |
+# |                                                      tos=inherit          |
+# |                                                                           |
+# |                                                                           |
+# |                                                                           |
+# |                                                                           |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_mirror_gretap_first
+	test_mirror_gretap_second
+"
+
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+
+vlan_host_create()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local vrf_name=$1; shift
+	local ips=("${@}")
+
+	vrf_create $vrf_name
+	ip link set dev $vrf_name up
+	vlan_create $if_name $vid $vrf_name "${ips[@]}"
+}
+
+vlan_host_destroy()
+{
+	local if_name=$1; shift
+	local vid=$1; shift
+	local vrf_name=$1; shift
+
+	vlan_destroy $if_name $vid
+	ip link set dev $vrf_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	vlan_host_create $h1 333 vrf-h1 192.0.2.1/28
+	ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip -4 route del 192.0.2.16/28 vrf vrf-h1
+	vlan_host_destroy $h1 333 vrf-h1
+}
+
+h2_create()
+{
+	vlan_host_create $h1 555 vrf-h2 192.0.2.18/28
+	ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17
+}
+
+h2_destroy()
+{
+	ip -4 route del 192.0.2.0/28 vrf vrf-h2
+	vlan_host_destroy $h1 555 vrf-h2
+}
+
+h3_create_team()
+{
+	team_create lag2 lacp $h3 $h4
+	__simple_if_init lag2 vrf-h3 192.0.2.130/32
+	ip -4 route add vrf vrf-h3 192.0.2.129/32 dev lag2
+}
+
+h3_destroy_team()
+{
+	ip -4 route del vrf vrf-h3 192.0.2.129/32 dev lag2
+	__simple_if_fini lag2 192.0.2.130/32
+	team_destroy lag2
+
+	ip link set dev $h3 down
+	ip link set dev $h4 down
+}
+
+h3_create()
+{
+	vrf_create vrf-h3
+	ip link set dev vrf-h3 up
+	h3_create_team
+
+	tunnel_create gt4-dst gretap 192.0.2.130 192.0.2.129 \
+		      ttl 100 tos inherit
+	ip link set dev gt4-dst master vrf-h3
+	tc qdisc add dev gt4-dst clsact
+}
+
+h3_destroy()
+{
+	tc qdisc del dev gt4-dst clsact
+	ip link set dev gt4-dst nomaster
+	tunnel_destroy gt4-dst
+
+	h3_destroy_team
+	ip link set dev vrf-h3 down
+	vrf_destroy vrf-h3
+}
+
+switch_create()
+{
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+	vlan_create $swp1 333 "" 192.0.2.2/28
+	vlan_create $swp1 555 "" 192.0.2.17/28
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit
+
+	ip link set dev $swp3 up
+	ip link set dev $swp4 up
+	team_create lag1 lacp $swp3 $swp4
+	__addr_add_del lag1 add 192.0.2.129/32
+	ip -4 route add 192.0.2.130/32 dev lag1
+}
+
+switch_destroy()
+{
+	ip -4 route del 192.0.2.130/32 dev lag1
+	__addr_add_del lag1 del 192.0.2.129/32
+	team_destroy lag1
+
+	ip link set dev $swp4 down
+	ip link set dev $swp3 down
+
+	tunnel_destroy gt4
+
+	vlan_destroy $swp1 555
+	vlan_destroy $swp1 333
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp3=${NETIFS[p3]}
+	h3=${NETIFS[p4]}
+
+	swp4=${NETIFS[p5]}
+	h4=${NETIFS[p6]}
+
+	vrf_prepare
+
+	ip link set dev $h1 up
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h3_destroy
+	h2_destroy
+	h1_destroy
+	ip link set dev $h1 down
+
+	vrf_cleanup
+}
+
+test_lag_slave()
+{
+	local up_dev=$1; shift
+	local down_dev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress gt4 \
+		       "proto 802.1q flower vlan_id 333"
+	vlan_capture_install gt4-dst "vlan_ethtype ipv4 ip_proto icmp type 8"
+
+	# Move $down_dev away from the team. That will prompt change in
+	# txability of the connected device, without changing its upness. The
+	# driver should notice the txability change and move the traffic to the
+	# other slave.
+	ip link set dev $down_dev nomaster
+	sleep 2
+	mirror_test vrf-h1 192.0.2.1 192.0.2.18 gt4-dst 100 10
+
+	# Test lack of connectivity when neither slave is txable.
+	ip link set dev $up_dev nomaster
+	sleep 2
+	mirror_test vrf-h1 192.0.2.1 192.0.2.18 gt4-dst 100 0
+
+	vlan_capture_uninstall gt4-dst
+	mirror_uninstall $swp1 ingress
+
+	# Recreate H3's team device, because mlxsw, which this test is
+	# predominantly mean to test, requires a bottom-up construction and
+	# doesn't allow enslavement to a device that already has an upper.
+	h3_destroy_team
+	h3_create_team
+	# Wait for ${h,swp}{3,4}.
+	setup_wait
+
+	log_test "$what"
+}
+
+test_mirror_gretap_first()
+{
+	test_lag_slave $h3 $h4 "mirror to gretap: LAG first slave"
+}
+
+test_mirror_gretap_second()
+{
+	test_lag_slave $h4 $h3 "mirror to gretap: LAG second slave"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
new file mode 100644
index 000000000000..20078cc55f24
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_lib.sh
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: GPL-2.0
+
+source "$net_forwarding_dir/mirror_lib.sh"
+
+quick_test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+
+	do_test_span_dir_ips 10 h3-$tundev "$ip1" "$ip2" \
+			     "$forward_type" "$backward_type"
+}
+
+fail_test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	do_test_span_dir_ips 0 h3-$tundev "$ip1" "$ip2"
+}
+
+test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	test_span_dir_ips h3-$tundev "$forward_type" \
+			  "$backward_type" "$ip1" "$ip2"
+}
+
+full_test_span_gre_dir_ips()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev "matchall"
+	test_span_dir_ips "h3-$tundev" "$forward_type" \
+			  "$backward_type" "$ip1" "$ip2"
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what"
+}
+
+full_test_span_gre_dir_vlan_ips()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local vlan_match=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $tundev "matchall"
+
+	test_span_dir_ips "h3-$tundev" "$forward_type" \
+			  "$backward_type" "$ip1" "$ip2"
+
+	tc filter add dev $h3 ingress pref 77 prot 802.1q \
+		flower $vlan_match \
+		action pass
+	mirror_test v$h1 $ip1 $ip2 $h3 77 '>= 10'
+	tc filter del dev $h3 ingress pref 77
+
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what"
+}
+
+quick_test_span_gre_dir()
+{
+	local tundev=$1; shift
+	local forward_type=${1-8}; shift
+	local backward_type=${1-0}; shift
+
+	quick_test_span_gre_dir_ips "$tundev" 192.0.2.1 192.0.2.2 \
+				    "$forward_type" "$backward_type"
+}
+
+fail_test_span_gre_dir()
+{
+	local tundev=$1; shift
+
+	fail_test_span_gre_dir_ips "$tundev" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_dir()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+
+	full_test_span_gre_dir_ips "$tundev" "$direction" "$forward_type" \
+				   "$backward_type" "$what" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_dir_vlan()
+{
+	local tundev=$1; shift
+	local direction=$1; shift
+	local vlan_match=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+
+	full_test_span_gre_dir_vlan_ips "$tundev" "$direction" "$vlan_match" \
+					"$forward_type" "$backward_type" \
+					"$what" 192.0.2.1 192.0.2.2
+}
+
+full_test_span_gre_stp_ips()
+{
+	local tundev=$1; shift
+	local nbpdev=$1; shift
+	local what=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local h3mac=$(mac_get $h3)
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir_ips $tundev $ip1 $ip2 \
+				    "$forward_type" "$backward_type"
+
+	bridge link set dev $nbpdev state disabled
+	sleep 1
+	fail_test_span_gre_dir_ips $tundev $ip1 $ip2
+
+	bridge link set dev $nbpdev state forwarding
+	sleep 1
+	quick_test_span_gre_dir_ips $tundev $ip1 $ip2 \
+				    "$forward_type" "$backward_type"
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: STP state"
+}
+
+full_test_span_gre_stp()
+{
+	local tundev=$1; shift
+	local nbpdev=$1; shift
+	local what=$1; shift
+	local forward_type=${1-8}; shift
+	local backward_type=${1-0}; shift
+
+	full_test_span_gre_stp_ips "$tundev" "$nbpdev" "$what" \
+				   192.0.2.1 192.0.2.2 \
+				   "$forward_type" "$backward_type"
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
new file mode 100755
index 000000000000..2cbfbecf25c8
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for mirroring to gretap and ip6gretap, such that the neighbor entry for
+# the tunnel remote address has invalid address at the time that the mirroring
+# is set up. Later on, the neighbor is deleted and it is expected to be
+# reinitialized using the usual ARP process, and the mirroring offload updated.
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip address add dev $swp3 192.0.2.129/28
+	ip address add dev $h3 192.0.2.130/28
+
+	ip address add dev $swp3 2001:db8:2::1/64
+	ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip address del dev $h3 2001:db8:2::2/64
+	ip address del dev $swp3 2001:db8:2::1/64
+
+	ip address del dev $h3 192.0.2.130/28
+	ip address del dev $swp3 192.0.2.129/28
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_span_gre_neigh()
+{
+	local addr=$1; shift
+	local tundev=$1; shift
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
+	mirror_install $swp1 $direction $tundev "matchall"
+	fail_test_span_gre_dir $tundev "$forward_type" "$backward_type"
+	ip neigh del dev $swp3 $addr
+	quick_test_span_gre_dir $tundev "$forward_type" "$backward_type"
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction $what: neighbor change"
+}
+
+test_gretap()
+{
+	test_span_gre_neigh 192.0.2.130 gt4 ingress 8 0 "mirror to gretap"
+	test_span_gre_neigh 192.0.2.130 gt4 egress 0 8 "mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	test_span_gre_neigh 2001:db8:2::2 gt6 ingress 8 0 "mirror to ip6gretap"
+	test_span_gre_neigh 2001:db8:2::2 gt6 egress 0 8 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
new file mode 100755
index 000000000000..34bc646938e3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_nh.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test that gretap and ip6gretap mirroring works when the other tunnel endpoint
+# is reachable through a next-hop route (as opposed to directly-attached route).
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.$h3.rp_filter 0
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	sysctl_set net.ipv4.conf.v$h3.rp_filter 0
+
+	ip address add dev $swp3 192.0.2.161/28
+	ip address add dev $h3 192.0.2.162/28
+	ip address add dev gt4 192.0.2.129/32
+	ip address add dev h3-gt4 192.0.2.130/32
+
+	# IPv6 route can't be added after address. Such routes are rejected due
+	# to the gateway address having been configured on the local system. It
+	# works the other way around though.
+	ip address add dev $swp3 2001:db8:4::1/64
+	ip -6 route add 2001:db8:2::2/128 via 2001:db8:4::2
+	ip address add dev $h3 2001:db8:4::2/64
+	ip address add dev gt6 2001:db8:2::1
+	ip address add dev h3-gt6 2001:db8:2::2
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip -6 route del 2001:db8:2::2/128 via 2001:db8:4::2
+	ip address del dev $h3 2001:db8:4::2/64
+	ip address del dev $swp3 2001:db8:4::1/64
+
+	ip address del dev $h3 192.0.2.162/28
+	ip address del dev $swp3 192.0.2.161/28
+
+	sysctl_restore net.ipv4.conf.v$h3.rp_filter 0
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+
+	sysctl_restore net.ipv4.conf.$h3.rp_filter
+	sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+test_gretap()
+{
+	RET=0
+	mirror_install $swp1 ingress gt4 "matchall"
+
+	# For IPv4, test that there's no mirroring without the route directing
+	# the traffic to tunnel remote address. Then add it and test that
+	# mirroring starts. For IPv6 we can't test this due to the limitation
+	# that routes for locally-specified IPv6 addresses can't be added.
+	fail_test_span_gre_dir gt4
+
+	ip route add 192.0.2.130/32 via 192.0.2.162
+	quick_test_span_gre_dir gt4
+	ip route del 192.0.2.130/32 via 192.0.2.162
+
+	mirror_uninstall $swp1 ingress
+	log_test "mirror to gre with next-hop remote"
+}
+
+test_ip6gretap()
+{
+	RET=0
+
+	mirror_install $swp1 ingress gt6 "matchall"
+	quick_test_span_gre_dir gt6
+	mirror_uninstall $swp1 ingress
+
+	log_test "mirror to ip6gre with next-hop remote"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
new file mode 100644
index 000000000000..6e615fffa4ef
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_topo_lib.sh
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is the standard topology for testing mirroring to gretap and ip6gretap
+# netdevices. The tests that use it tweak it in one way or another--importantly,
+# $swp3 and $h3 need to have addresses set up.
+#
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirror                                                   |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   |     + $swp3               + gt6 (ip6gretap)      + gt4 (gretap)         |
+#   |     |                     : loc=2001:db8:2::1    : loc=192.0.2.129      |
+#   |     |                     : rem=2001:db8:2::2    : rem=192.0.2.130      |
+#   |     |                     : ttl=100              : ttl=100              |
+#   |     |                     : tos=inherit          : tos=inherit          |
+#   |     |                     :                      :                      |
+#   +-----|---------------------:----------------------:----------------------+
+#         |                     :                      :
+#   +-----|---------------------:----------------------:----------------------+
+#   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
+#   |                             loc=2001:db8:2::2      loc=192.0.2.130      |
+#   |                             rem=2001:db8:2::1      rem=192.0.2.129      |
+#   |                             ttl=100                ttl=100              |
+#   |                             tos=inherit            tos=inherit          |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+
+source "$net_forwarding_dir/mirror_topo_lib.sh"
+
+mirror_gre_topo_h3_create()
+{
+	mirror_topo_h3_create
+
+	tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
+	ip link set h3-gt4 vrf v$h3
+	matchall_sink_create h3-gt4
+
+	tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
+	ip link set h3-gt6 vrf v$h3
+	matchall_sink_create h3-gt6
+}
+
+mirror_gre_topo_h3_destroy()
+{
+	tunnel_destroy h3-gt6
+	tunnel_destroy h3-gt4
+
+	mirror_topo_h3_destroy
+}
+
+mirror_gre_topo_switch_create()
+{
+	mirror_topo_switch_create
+
+	tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
+		      ttl 100 tos inherit
+
+	tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
+		      ttl 100 tos inherit allow-localremote
+}
+
+mirror_gre_topo_switch_destroy()
+{
+	tunnel_destroy gt6
+	tunnel_destroy gt4
+
+	mirror_topo_switch_destroy
+}
+
+mirror_gre_topo_create()
+{
+	mirror_topo_h1_create
+	mirror_topo_h2_create
+	mirror_gre_topo_h3_create
+
+	mirror_gre_topo_switch_create
+}
+
+mirror_gre_topo_destroy()
+{
+	mirror_gre_topo_switch_destroy
+
+	mirror_gre_topo_h3_destroy
+	mirror_topo_h2_destroy
+	mirror_topo_h1_destroy
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh
new file mode 100755
index 000000000000..63689928cb51
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_vlan.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for "tc action mirred egress mirror" that mirrors to a gretap netdevice
+# whose underlay route points at a vlan device.
+
+ALL_TESTS="
+	test_gretap
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	ip link add name $swp3.555 link $swp3 type vlan id 555
+	ip address add dev $swp3.555 192.0.2.129/32
+	ip address add dev $swp3.555 2001:db8:2::1/128
+	ip link set dev $swp3.555 up
+
+	ip route add 192.0.2.130/32 dev $swp3.555
+	ip -6 route add 2001:db8:2::2/128 dev $swp3.555
+
+	ip link add name $h3.555 link $h3 type vlan id 555
+	ip link set dev $h3.555 master v$h3
+	ip address add dev $h3.555 192.0.2.130/28
+	ip address add dev $h3.555 2001:db8:2::2/64
+	ip link set dev $h3.555 up
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link del dev $h3.555
+	ip link del dev $swp3.555
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+}
+
+test_gretap()
+{
+	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
+	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh b/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh
new file mode 100755
index 000000000000..a21c771908b3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_vlan_bridge_1q.sh
@@ -0,0 +1,329 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for "tc action mirred egress mirror" when the underlay route points at a
+# vlan device on top of a bridge device with vlan filtering (802.1q).
+#
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirred egress mirror dev {gt4,gt6}                       |     |
+#   |     |                                                             |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    br1                          $swp2 +   | |
+#   | |                                                                     | |
+#   | |   + $swp3                                                           | |
+#   | +---|-----------------------------------------------------------------+ |
+#   |     |                        |                                          |
+#   |     |                        + br1.555                                  |
+#   |     |                          192.0.2.130/28                           |
+#   |     |                          2001:db8:2::2/64                         |
+#   |     |                                                                   |
+#   |     |                     + gt6 (ip6gretap)      + gt4 (gretap)         |
+#   |     |                     : loc=2001:db8:2::1    : loc=192.0.2.129      |
+#   |     |                     : rem=2001:db8:2::2    : rem=192.0.2.130      |
+#   |     |                     : ttl=100              : ttl=100              |
+#   |     |                     : tos=inherit          : tos=inherit          |
+#   |     |                     :                      :                      |
+#   +-----|---------------------:----------------------:----------------------+
+#         |                     :                      :
+#   +-----|---------------------:----------------------:----------------------+
+#   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
+#   |     |                       loc=2001:db8:2::2      loc=192.0.2.130      |
+#   |     + $h3.555               rem=2001:db8:2::1      rem=192.0.2.129      |
+#   |       192.0.2.130/28        ttl=100                ttl=100              |
+#   |       2001:db8:2::2/64      tos=inherit            tos=inherit          |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_gretap
+	test_ip6gretap
+	test_gretap_forbidden_cpu
+	test_ip6gretap_forbidden_cpu
+	test_gretap_forbidden_egress
+	test_ip6gretap_forbidden_egress
+	test_gretap_untagged_egress
+	test_ip6gretap_untagged_egress
+	test_gretap_fdb_roaming
+	test_ip6gretap_fdb_roaming
+	test_gretap_stp
+	test_ip6gretap_stp
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+require_command $ARPING
+
+h3_addr_add_del()
+{
+	local add_del=$1; shift
+	local dev=$1; shift
+
+	ip addr $add_del dev $dev 192.0.2.130/28
+	ip addr $add_del dev $dev 2001:db8:2::2/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	# gt4's remote address is at $h3.555, not $h3. Thus the packets arriving
+	# directly to $h3 for test_gretap_untagged_egress() are rejected by
+	# rp_filter and the test spuriously fails.
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.$h3.rp_filter 0
+
+	vrf_prepare
+	mirror_gre_topo_create
+
+	vlan_create br1 555 "" 192.0.2.129/32 2001:db8:2::1/128
+	bridge vlan add dev br1 vid 555 self
+	ip route rep 192.0.2.130/32 dev br1.555
+	ip -6 route rep 2001:db8:2::2/128 dev br1.555
+
+	vlan_create $h3 555 v$h3
+	h3_addr_add_del add $h3.555
+
+	ip link set dev $swp3 master br1
+	bridge vlan add dev $swp3 vid 555
+	bridge vlan add dev $swp2 vid 555
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp3 nomaster
+
+	h3_addr_add_del del $h3.555
+	vlan_destroy $h3 555
+	vlan_destroy br1 555
+
+	mirror_gre_topo_destroy
+	vrf_cleanup
+
+	sysctl_restore net.ipv4.conf.$h3.rp_filter
+	sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+test_vlan_match()
+{
+	local tundev=$1; shift
+	local vlan_match=$1; shift
+	local what=$1; shift
+
+	full_test_span_gre_dir_vlan $tundev ingress "$vlan_match" 8 0 "$what"
+	full_test_span_gre_dir_vlan $tundev egress "$vlan_match" 0 8 "$what"
+}
+
+test_gretap()
+{
+	test_vlan_match gt4 'skip_hw vlan_id 555 vlan_ethtype ip' \
+			"mirror to gretap"
+}
+
+test_ip6gretap()
+{
+	test_vlan_match gt6 'skip_hw vlan_id 555 vlan_ethtype ipv6' \
+			"mirror to ip6gretap"
+}
+
+test_span_gre_forbidden_cpu()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	# Run the pass-test first, to prime neighbor table.
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+
+	# Now forbid the VLAN at the bridge and see it fail.
+	bridge vlan del dev br1 vid 555 self
+	sleep 1
+	fail_test_span_gre_dir $tundev
+
+	bridge vlan add dev br1 vid 555 self
+	sleep 1
+	quick_test_span_gre_dir $tundev
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: vlan forbidden at a bridge"
+}
+
+test_gretap_forbidden_cpu()
+{
+	test_span_gre_forbidden_cpu gt4 "mirror to gretap"
+}
+
+test_ip6gretap_forbidden_cpu()
+{
+	test_span_gre_forbidden_cpu gt6 "mirror to ip6gretap"
+}
+
+test_span_gre_forbidden_egress()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+
+	bridge vlan del dev $swp3 vid 555
+	sleep 1
+	fail_test_span_gre_dir $tundev
+
+	bridge vlan add dev $swp3 vid 555
+	# Re-prime FDB
+	$ARPING -I br1.555 -fqc 1 192.0.2.130
+	sleep 1
+	quick_test_span_gre_dir $tundev
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: vlan forbidden at a bridge egress"
+}
+
+test_gretap_forbidden_egress()
+{
+	test_span_gre_forbidden_egress gt4 "mirror to gretap"
+}
+
+test_ip6gretap_forbidden_egress()
+{
+	test_span_gre_forbidden_egress gt6 "mirror to ip6gretap"
+}
+
+test_span_gre_untagged_egress()
+{
+	local tundev=$1; shift
+	local ul_proto=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+
+	quick_test_span_gre_dir $tundev
+	quick_test_span_vlan_dir $h3 555 "$ul_proto"
+
+	h3_addr_add_del del $h3.555
+	bridge vlan add dev $swp3 vid 555 pvid untagged
+	h3_addr_add_del add $h3
+	sleep 5
+
+	quick_test_span_gre_dir $tundev
+	fail_test_span_vlan_dir $h3 555 "$ul_proto"
+
+	h3_addr_add_del del $h3
+	bridge vlan add dev $swp3 vid 555
+	h3_addr_add_del add $h3.555
+	sleep 5
+
+	quick_test_span_gre_dir $tundev
+	quick_test_span_vlan_dir $h3 555 "$ul_proto"
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: vlan untagged at a bridge egress"
+}
+
+test_gretap_untagged_egress()
+{
+	test_span_gre_untagged_egress gt4 ip "mirror to gretap"
+}
+
+test_ip6gretap_untagged_egress()
+{
+	test_span_gre_untagged_egress gt6 ipv6 "mirror to ip6gretap"
+}
+
+test_span_gre_fdb_roaming()
+{
+	local tundev=$1; shift
+	local what=$1; shift
+	local h3mac=$(mac_get $h3)
+
+	RET=0
+
+	mirror_install $swp1 ingress $tundev "matchall"
+	quick_test_span_gre_dir $tundev
+
+	while ((RET == 0)); do
+		bridge fdb del dev $swp3 $h3mac vlan 555 master 2>/dev/null
+		bridge fdb add dev $swp2 $h3mac vlan 555 master static
+		sleep 1
+		fail_test_span_gre_dir $tundev
+
+		if ! bridge fdb sh dev $swp2 vlan 555 master \
+		    | grep -q $h3mac; then
+			printf "TEST: %-60s  [RETRY]\n" \
+				"$what: MAC roaming"
+			# ARP or ND probably reprimed the FDB while the test
+			# was running. We would get a spurious failure.
+			RET=0
+			continue
+		fi
+		break
+	done
+
+	bridge fdb del dev $swp2 $h3mac vlan 555 master 2>/dev/null
+	# Re-prime FDB
+	$ARPING -I br1.555 -fqc 1 192.0.2.130
+	sleep 1
+	quick_test_span_gre_dir $tundev
+
+	mirror_uninstall $swp1 ingress
+
+	log_test "$what: MAC roaming"
+}
+
+test_gretap_fdb_roaming()
+{
+	test_span_gre_fdb_roaming gt4 "mirror to gretap"
+}
+
+test_ip6gretap_fdb_roaming()
+{
+	test_span_gre_fdb_roaming gt6 "mirror to ip6gretap"
+}
+
+test_gretap_stp()
+{
+	full_test_span_gre_stp gt4 $swp3 "mirror to gretap"
+}
+
+test_ip6gretap_stp()
+{
+	full_test_span_gre_stp gt6 $swp3 "mirror to ip6gretap"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/mirror_lib.sh b/tools/testing/selftests/net/forwarding/mirror_lib.sh
new file mode 100644
index 000000000000..6bf9d5ae933c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_lib.sh
@@ -0,0 +1,180 @@
+# SPDX-License-Identifier: GPL-2.0
+
+mirror_install()
+{
+	local from_dev=$1; shift
+	local direction=$1; shift
+	local to_dev=$1; shift
+	local filter=$1; shift
+
+	tc filter add dev $from_dev $direction \
+	   pref 1000 $filter \
+	   action mirred egress mirror dev $to_dev
+}
+
+mirror_uninstall()
+{
+	local from_dev=$1; shift
+	local direction=$1; shift
+
+	tc filter del dev $swp1 $direction pref 1000
+}
+
+is_ipv6()
+{
+	local addr=$1; shift
+
+	[[ -z ${addr//[0-9a-fA-F:]/} ]]
+}
+
+mirror_test()
+{
+	local vrf_name=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dev=$1; shift
+	local pref=$1; shift
+	local expect=$1; shift
+
+	if is_ipv6 $dip; then
+		local proto=-6
+		local type="icmp6 type=128" # Echo request.
+	else
+		local proto=
+		local type="icmp echoreq"
+	fi
+
+	if [[ -z ${expect//[[:digit:]]/} ]]; then
+		expect="== $expect"
+	fi
+
+	local t0=$(tc_rule_stats_get $dev $pref)
+	$MZ $proto $vrf_name ${sip:+-A $sip} -B $dip -a own -b bc -q \
+	    -c 10 -d 100msec -t $type
+	sleep 0.5
+	local t1=$(tc_rule_stats_get $dev $pref)
+	local delta=$((t1 - t0))
+	((delta $expect))
+	check_err $? "Expected to capture $expect packets, got $delta."
+}
+
+do_test_span_dir_ips()
+{
+	local expect=$1; shift
+	local dev=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local forward_type=${1-8}; shift
+	local backward_type=${1-0}; shift
+
+	icmp_capture_install $dev "type $forward_type"
+	mirror_test v$h1 $ip1 $ip2 $dev 100 $expect
+	icmp_capture_uninstall $dev
+
+	icmp_capture_install $dev "type $backward_type"
+	mirror_test v$h2 $ip2 $ip1 $dev 100 $expect
+	icmp_capture_uninstall $dev
+}
+
+quick_test_span_dir_ips()
+{
+	local dev=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local forward_type=${1-8}; shift
+	local backward_type=${1-0}; shift
+
+	do_test_span_dir_ips 10 "$dev" "$ip1" "$ip2" \
+			     "$forward_type" "$backward_type"
+}
+
+test_span_dir_ips()
+{
+	local dev=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	quick_test_span_dir_ips "$dev" "$ip1" "$ip2" \
+				"$forward_type" "$backward_type"
+
+	icmp_capture_install $dev "type $forward_type"
+	mirror_test v$h1 $ip1 $ip2 $dev 100 10
+	icmp_capture_uninstall $dev
+
+	icmp_capture_install $dev "type $backward_type"
+	mirror_test v$h2 $ip2 $ip1 $dev 100 10
+	icmp_capture_uninstall $dev
+}
+
+test_span_dir()
+{
+	local dev=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+
+	test_span_dir_ips "$dev" "$forward_type" "$backward_type" \
+			  192.0.2.1 192.0.2.2
+}
+
+do_test_span_vlan_dir_ips()
+{
+	local expect=$1; shift
+	local dev=$1; shift
+	local vid=$1; shift
+	local ul_proto=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	# Install the capture as skip_hw to avoid double-counting of packets.
+	# The traffic is meant for local box anyway, so will be trapped to
+	# kernel.
+	vlan_capture_install $dev "skip_hw vlan_id $vid vlan_ethtype $ul_proto"
+	mirror_test v$h1 $ip1 $ip2 $dev 100 "$expect"
+	mirror_test v$h2 $ip2 $ip1 $dev 100 "$expect"
+	vlan_capture_uninstall $dev
+}
+
+quick_test_span_vlan_dir_ips()
+{
+	local dev=$1; shift
+	local vid=$1; shift
+	local ul_proto=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	do_test_span_vlan_dir_ips '>= 10' "$dev" "$vid" "$ul_proto" \
+				  "$ip1" "$ip2"
+}
+
+fail_test_span_vlan_dir_ips()
+{
+	local dev=$1; shift
+	local vid=$1; shift
+	local ul_proto=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+
+	do_test_span_vlan_dir_ips 0 "$dev" "$vid" "$ul_proto" "$ip1" "$ip2"
+}
+
+quick_test_span_vlan_dir()
+{
+	local dev=$1; shift
+	local vid=$1; shift
+	local ul_proto=$1; shift
+
+	quick_test_span_vlan_dir_ips "$dev" "$vid" "$ul_proto" \
+				     192.0.2.1 192.0.2.2
+}
+
+fail_test_span_vlan_dir()
+{
+	local dev=$1; shift
+	local vid=$1; shift
+	local ul_proto=$1; shift
+
+	fail_test_span_vlan_dir_ips "$dev" "$vid" "$ul_proto" \
+				    192.0.2.1 192.0.2.2
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh
new file mode 100644
index 000000000000..bb1adbb7b98a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_topo_lib.sh
@@ -0,0 +1,102 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is the standard topology for testing mirroring. The tests that use it
+# tweak it in one way or another--typically add more devices to the topology.
+#
+#   +---------------------+                             +---------------------+
+#   | H1                  |                             |                  H2 |
+#   |     + $h1           |                             |           $h2 +     |
+#   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
+#   +-----|---------------+                             +---------------|-----+
+#         |                                                             |
+#   +-----|-------------------------------------------------------------|-----+
+#   | SW  o--> mirror                                                   |     |
+#   | +---|-------------------------------------------------------------|---+ |
+#   | |   + $swp1                    BR                           $swp2 +   | |
+#   | +---------------------------------------------------------------------+ |
+#   |                                                                         |
+#   |     + $swp3                                                             |
+#   +-----|-------------------------------------------------------------------+
+#         |
+#   +-----|-------------------------------------------------------------------+
+#   | H3  + $h3                                                               |
+#   |                                                                         |
+#   +-------------------------------------------------------------------------+
+
+mirror_topo_h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+mirror_topo_h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+mirror_topo_h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+}
+
+mirror_topo_h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+mirror_topo_h3_create()
+{
+	simple_if_init $h3
+	tc qdisc add dev $h3 clsact
+}
+
+mirror_topo_h3_destroy()
+{
+	tc qdisc del dev $h3 clsact
+	simple_if_fini $h3
+}
+
+mirror_topo_switch_create()
+{
+	ip link set dev $swp3 up
+
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+}
+
+mirror_topo_switch_destroy()
+{
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br1
+
+	ip link set dev $swp3 down
+}
+
+mirror_topo_create()
+{
+	mirror_topo_h1_create
+	mirror_topo_h2_create
+	mirror_topo_h3_create
+
+	mirror_topo_switch_create
+}
+
+mirror_topo_destroy()
+{
+	mirror_topo_switch_destroy
+
+	mirror_topo_h3_destroy
+	mirror_topo_h2_destroy
+	mirror_topo_h1_destroy
+}
diff --git a/tools/testing/selftests/net/forwarding/mirror_vlan.sh b/tools/testing/selftests/net/forwarding/mirror_vlan.sh
new file mode 100755
index 000000000000..2f150a414d38
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_vlan.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing mirroring. See mirror_topo_lib.sh
+# for more details.
+#
+# Test for "tc action mirred egress mirror" that mirrors to a vlan device.
+
+ALL_TESTS="
+	test_vlan
+	test_tagged_vlan
+"
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_topo_lib.sh
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	mirror_topo_create
+
+	vlan_create $swp3 555
+
+	vlan_create $h3 555 v$h3
+	matchall_sink_create $h3.555
+
+	vlan_create $h1 111 v$h1 192.0.2.17/28
+	bridge vlan add dev $swp1 vid 111
+
+	vlan_create $h2 111 v$h2 192.0.2.18/28
+	bridge vlan add dev $swp2 vid 111
+
+	trap_install $h3 ingress
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	trap_uninstall $h3 ingress
+
+	vlan_destroy $h2 111
+	vlan_destroy $h1 111
+	vlan_destroy $h3 555
+	vlan_destroy $swp3 555
+
+	mirror_topo_destroy
+	vrf_cleanup
+}
+
+test_vlan_dir()
+{
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $swp3.555 "matchall"
+	test_span_dir "$h3.555" "$forward_type" "$backward_type"
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction mirror to vlan"
+}
+
+test_vlan()
+{
+	test_vlan_dir ingress 8 0
+	test_vlan_dir egress 0 8
+}
+
+test_tagged_vlan_dir()
+{
+	local direction=$1; shift
+	local forward_type=$1; shift
+	local backward_type=$1; shift
+
+	RET=0
+
+	mirror_install $swp1 $direction $swp3.555 "matchall"
+	do_test_span_vlan_dir_ips '>= 10' "$h3.555" 111 ip 192.0.2.17 192.0.2.18
+	do_test_span_vlan_dir_ips  0 "$h3.555" 555 ip 192.0.2.17 192.0.2.18
+	mirror_uninstall $swp1 $direction
+
+	log_test "$direction mirror tagged to vlan"
+}
+
+test_tagged_vlan()
+{
+	test_tagged_vlan_dir ingress 8 0
+	test_tagged_vlan_dir egress 0 8
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/no_forwarding.sh b/tools/testing/selftests/net/forwarding/no_forwarding.sh
new file mode 100755
index 000000000000..694ece9ba3a7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/no_forwarding.sh
@@ -0,0 +1,264 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="standalone two_bridges one_bridge_two_pvids"
+NUM_NETIFS=4
+
+source lib.sh
+
+h1=${NETIFS[p1]}
+h2=${NETIFS[p3]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p4]}
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+IPV4_ALLNODES="224.0.0.1"
+IPV6_ALLNODES="ff02::1"
+MACV4_ALLNODES="01:00:5e:00:00:01"
+MACV6_ALLNODES="33:33:00:00:00:01"
+NON_IP_MC="01:02:03:04:05:06"
+NON_IP_PKT="00:04 48:45:4c:4f"
+BC="ff:ff:ff:ff:ff:ff"
+
+# The full 4K VLAN space is too much to check, so strategically pick some
+# values which should provide reasonable coverage
+vids=(0 1 2 5 10 20 50 100 200 500 1000 1000 2000 4000 4094)
+
+send_non_ip()
+{
+	local if_name=$1
+	local smac=$2
+	local dmac=$3
+
+	$MZ -q $if_name "$dmac $smac $NON_IP_PKT"
+}
+
+send_uc_ipv4()
+{
+	local if_name=$1
+	local dmac=$2
+
+	ip neigh add $H2_IPV4 lladdr $dmac dev $if_name
+	ping_do $if_name $H2_IPV4
+	ip neigh del $H2_IPV4 dev $if_name
+}
+
+send_mc_ipv4()
+{
+	local if_name=$1
+
+	ping_do $if_name $IPV4_ALLNODES "-I $if_name"
+}
+
+send_uc_ipv6()
+{
+	local if_name=$1
+	local dmac=$2
+
+	ip -6 neigh add $H2_IPV6 lladdr $dmac dev $if_name
+	ping6_do $if_name $H2_IPV6
+	ip -6 neigh del $H2_IPV6 dev $if_name
+}
+
+send_mc_ipv6()
+{
+	local if_name=$1
+
+	ping6_do $if_name $IPV6_ALLNODES%$if_name
+}
+
+check_rcv()
+{
+	local if_name=$1
+	local type=$2
+	local pattern=$3
+	local should_fail=1
+
+	RET=0
+
+	tcpdump_show $if_name | grep -q "$pattern"
+
+	check_err_fail "$should_fail" "$?" "reception"
+
+	log_test "$type"
+}
+
+run_test()
+{
+	local test_name="$1"
+	local smac=$(mac_get $h1)
+	local dmac=$(mac_get $h2)
+	local h1_ipv6_lladdr=$(ipv6_lladdr_get $h1)
+	local vid=
+
+	echo "$test_name: Sending packets"
+
+	tcpdump_start $h2
+
+	send_non_ip $h1 $smac $dmac
+	send_non_ip $h1 $smac $NON_IP_MC
+	send_non_ip $h1 $smac $BC
+	send_uc_ipv4 $h1 $dmac
+	send_mc_ipv4 $h1
+	send_uc_ipv6 $h1 $dmac
+	send_mc_ipv6 $h1
+
+	for vid in "${vids[@]}"; do
+		vlan_create $h1 $vid
+		simple_if_init $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+
+		send_non_ip $h1.$vid $smac $dmac
+		send_non_ip $h1.$vid $smac $NON_IP_MC
+		send_non_ip $h1.$vid $smac $BC
+		send_uc_ipv4 $h1.$vid $dmac
+		send_mc_ipv4 $h1.$vid
+		send_uc_ipv6 $h1.$vid $dmac
+		send_mc_ipv6 $h1.$vid
+
+		simple_if_fini $h1.$vid $H1_IPV4/24 $H1_IPV6/64
+		vlan_destroy $h1 $vid
+	done
+
+	sleep 1
+
+	echo "$test_name: Checking which packets were received"
+
+	tcpdump_stop $h2
+
+	check_rcv $h2 "$test_name: Unicast non-IP untagged" \
+		"$smac > $dmac, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Multicast non-IP untagged" \
+		"$smac > $NON_IP_MC, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Broadcast non-IP untagged" \
+		"$smac > $BC, 802.3, length 4:"
+
+	check_rcv $h2 "$test_name: Unicast IPv4 untagged" \
+		"$smac > $dmac, ethertype IPv4 (0x0800)"
+
+	check_rcv $h2 "$test_name: Multicast IPv4 untagged" \
+		"$smac > $MACV4_ALLNODES, ethertype IPv4 (0x0800).*: $H1_IPV4 > $IPV4_ALLNODES"
+
+	check_rcv $h2 "$test_name: Unicast IPv6 untagged" \
+		"$smac > $dmac, ethertype IPv6 (0x86dd).*8: $H1_IPV6 > $H2_IPV6"
+
+	check_rcv $h2 "$test_name: Multicast IPv6 untagged" \
+		"$smac > $MACV6_ALLNODES, ethertype IPv6 (0x86dd).*: $h1_ipv6_lladdr > $IPV6_ALLNODES"
+
+	for vid in "${vids[@]}"; do
+		check_rcv $h2 "$test_name: Unicast non-IP VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Multicast non-IP VID $vid" \
+			"$smac > $NON_IP_MC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Broadcast non-IP VID $vid" \
+			"$smac > $BC, ethertype 802.1Q (0x8100).*vlan $vid,.*length 4"
+
+		check_rcv $h2 "$test_name: Unicast IPv4 VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $H2_IPV4"
+
+		check_rcv $h2 "$test_name: Multicast IPv4 VID $vid" \
+			"$smac > $MACV4_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv4 (0x0800), $H1_IPV4 > $IPV4_ALLNODES"
+
+		check_rcv $h2 "$test_name: Unicast IPv6 VID $vid" \
+			"$smac > $dmac, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $H1_IPV6 > $H2_IPV6"
+
+		check_rcv $h2 "$test_name: Multicast IPv6 VID $vid" \
+			"$smac > $MACV6_ALLNODES, ethertype 802.1Q (0x8100).*vlan $vid,.*ethertype IPv6 (0x86dd), $h1_ipv6_lladdr > $IPV6_ALLNODES"
+	done
+
+	tcpdump_cleanup $h2
+}
+
+standalone()
+{
+	run_test "Standalone switch ports"
+}
+
+two_bridges()
+{
+	ip link add br0 type bridge && ip link set br0 up
+	ip link add br1 type bridge && ip link set br1 up
+	ip link set $swp1 master br0
+	ip link set $swp2 master br1
+
+	run_test "Switch ports in different bridges"
+
+	ip link del br1
+	ip link del br0
+}
+
+one_bridge_two_pvids()
+{
+	ip link add br0 type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set br0 up
+	ip link set $swp1 master br0
+	ip link set $swp2 master br0
+
+	bridge vlan add dev $swp1 vid 1 pvid untagged
+	bridge vlan add dev $swp2 vid 2 pvid untagged
+
+	run_test "Switch ports in VLAN-aware bridge with different PVIDs"
+
+	ip link del br0
+}
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	# we call simple_if_init from the test itself, but setup_wait expects
+	# that we call it from here, and waits until the interfaces are up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_dsfield.sh b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
new file mode 100755
index 000000000000..af008fbf2725
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/pedit_dsfield.sh
@@ -0,0 +1,313 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
+# egress of $swp2, the traffic is acted upon by a pedit action. An ingress
+# filter installed on $h2 verifies that the packet looks like expected.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |  +-|----------------------------------------------------------------|-+   |
+# |  | + $swp1                       BR                           $swp2 + |   |
+# |  +--------------------------------------------------------------------+   |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	test_ip_dsfield
+	test_ip_dscp
+	test_ip_ecn
+	test_ip_dscp_ecn
+	test_ip6_dsfield
+	test_ip6_dscp
+	test_ip6_ecn
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:1::2
+}
+
+do_test_pedit_dsfield_common()
+{
+	local pedit_locus=$1; shift
+	local pedit_action=$1; shift
+	local mz_flags=$1; shift
+
+	RET=0
+
+	# TOS 125: DSCP 31, ECN 1. Used for testing that the relevant part is
+	# overwritten when zero is selected.
+	$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
+	    -a own -b $h2mac -q -t tcp tos=0x7d,sp=54321,dp=12345
+
+	local pkts
+	pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
+			tc_rule_handle_stats_get "dev $h2 ingress" 101)
+	check_err $? "Expected to get 10 packets on test probe, but got $pkts."
+
+	pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
+	((pkts >= 10))
+	check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
+
+	log_test "$pedit_locus pedit $pedit_action"
+}
+
+do_test_pedit_dsfield()
+{
+	local pedit_locus=$1; shift
+	local pedit_action=$1; shift
+	local match_prot=$1; shift
+	local match_flower=$1; shift
+	local mz_flags=$1; shift
+	local saddr=$1; shift
+	local daddr=$1; shift
+
+	tc filter add $pedit_locus handle 101 pref 1 \
+	   flower action pedit ex munge $pedit_action
+	tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
+	   flower skip_hw $match_flower action pass
+
+	do_test_pedit_dsfield_common "$pedit_locus" "$pedit_action" "$mz_flags"
+
+	tc filter del dev $h2 ingress pref 1
+	tc filter del $pedit_locus pref 1
+}
+
+do_test_ip_dsfield()
+{
+	local locus=$1; shift
+	local dsfield
+
+	for dsfield in 0 1 2 3 128 252 253 254 255; do
+		do_test_pedit_dsfield "$locus"				\
+				      "ip dsfield set $dsfield"		\
+				      ip "ip_tos $dsfield"		\
+				      "-A 192.0.2.1 -B 192.0.2.2"
+	done
+}
+
+test_ip_dsfield()
+{
+	do_test_ip_dsfield "dev $swp1 ingress"
+	do_test_ip_dsfield "dev $swp2 egress"
+}
+
+do_test_ip_dscp()
+{
+	local locus=$1; shift
+	local dscp
+
+	for dscp in 0 1 2 3 32 61 62 63; do
+		do_test_pedit_dsfield "$locus"				       \
+				  "ip dsfield set $((dscp << 2)) retain 0xfc"  \
+				  ip "ip_tos $(((dscp << 2) | 1))"	       \
+				  "-A 192.0.2.1 -B 192.0.2.2"
+	done
+}
+
+test_ip_dscp()
+{
+	do_test_ip_dscp "dev $swp1 ingress"
+	do_test_ip_dscp "dev $swp2 egress"
+}
+
+do_test_ip_ecn()
+{
+	local locus=$1; shift
+	local ecn
+
+	for ecn in 0 1 2 3; do
+		do_test_pedit_dsfield "$locus"				\
+				      "ip dsfield set $ecn retain 0x03"	\
+				      ip "ip_tos $((124 | $ecn))"	\
+				      "-A 192.0.2.1 -B 192.0.2.2"
+	done
+}
+
+test_ip_ecn()
+{
+	do_test_ip_ecn "dev $swp1 ingress"
+	do_test_ip_ecn "dev $swp2 egress"
+}
+
+do_test_ip_dscp_ecn()
+{
+	local locus=$1; shift
+
+	tc filter add $locus handle 101 pref 1				\
+	   flower action pedit ex munge ip dsfield set 124 retain 0xfc	\
+		  action pedit ex munge ip dsfield set 1 retain 0x03
+	tc filter add dev $h2 ingress handle 101 pref 1 prot ip		\
+	   flower skip_hw ip_tos 125 action pass
+
+	do_test_pedit_dsfield_common "$locus" "set DSCP + set ECN"	\
+				      "-A 192.0.2.1 -B 192.0.2.2"
+
+	tc filter del dev $h2 ingress pref 1
+	tc filter del $locus pref 1
+}
+
+test_ip_dscp_ecn()
+{
+	do_test_ip_dscp_ecn "dev $swp1 ingress"
+	do_test_ip_dscp_ecn "dev $swp2 egress"
+}
+
+do_test_ip6_dsfield()
+{
+	local locus=$1; shift
+	local dsfield
+
+	for dsfield in 0 1 2 3 128 252 253 254 255; do
+		do_test_pedit_dsfield "$locus"				\
+				  "ip6 traffic_class set $dsfield"	\
+				  ipv6 "ip_tos $dsfield"		\
+				  "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+	done
+}
+
+test_ip6_dsfield()
+{
+	do_test_ip6_dsfield "dev $swp1 ingress"
+	do_test_ip6_dsfield "dev $swp2 egress"
+}
+
+do_test_ip6_dscp()
+{
+	local locus=$1; shift
+	local dscp
+
+	for dscp in 0 1 2 3 32 61 62 63; do
+		do_test_pedit_dsfield "$locus"				       \
+			    "ip6 traffic_class set $((dscp << 2)) retain 0xfc" \
+			    ipv6 "ip_tos $(((dscp << 2) | 1))"		       \
+			    "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+	done
+}
+
+test_ip6_dscp()
+{
+	do_test_ip6_dscp "dev $swp1 ingress"
+	do_test_ip6_dscp "dev $swp2 egress"
+}
+
+do_test_ip6_ecn()
+{
+	local locus=$1; shift
+	local ecn
+
+	for ecn in 0 1 2 3; do
+		do_test_pedit_dsfield "$locus"				\
+				"ip6 traffic_class set $ecn retain 0x3"	\
+				ipv6 "ip_tos $((124 | $ecn))"		\
+				"-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+	done
+}
+
+test_ip6_ecn()
+{
+	do_test_ip6_ecn "dev $swp1 ingress"
+	do_test_ip6_ecn "dev $swp2 egress"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_ip.sh b/tools/testing/selftests/net/forwarding/pedit_ip.sh
new file mode 100755
index 000000000000..d14efb2d23b2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/pedit_ip.sh
@@ -0,0 +1,201 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
+# egress of $swp2, the traffic is acted upon by a pedit action. An ingress
+# filter installed on $h2 verifies that the packet looks like expected.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |  +-|----------------------------------------------------------------|-+   |
+# |  | + $swp1                       BR                           $swp2 + |   |
+# |  +--------------------------------------------------------------------+   |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	test_ip4_src
+	test_ip4_dst
+	test_ip6_src
+	test_ip6_dst
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add name br1 up type bridge vlan_filtering 1
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:1::2
+}
+
+do_test_pedit_ip()
+{
+	local pedit_locus=$1; shift
+	local pedit_action=$1; shift
+	local match_prot=$1; shift
+	local match_flower=$1; shift
+	local mz_flags=$1; shift
+
+	tc filter add $pedit_locus handle 101 pref 1 \
+	   flower action pedit ex munge $pedit_action
+	tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
+	   flower skip_hw $match_flower action pass
+
+	RET=0
+
+	$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 -a own -b $h2mac -q -t ip
+
+	local pkts
+	pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
+			tc_rule_handle_stats_get "dev $h2 ingress" 101)
+	check_err $? "Expected to get 10 packets, but got $pkts."
+
+	pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
+	((pkts >= 10))
+	check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
+
+	log_test "$pedit_locus pedit $pedit_action"
+
+	tc filter del dev $h2 ingress pref 1
+	tc filter del $pedit_locus pref 1
+}
+
+do_test_pedit_ip6()
+{
+	local locus=$1; shift
+	local pedit_addr=$1; shift
+	local flower_addr=$1; shift
+
+	do_test_pedit_ip "$locus" "$pedit_addr set 2001:db8:2::1" ipv6	\
+			 "$flower_addr 2001:db8:2::1"			\
+			 "-6 -A 2001:db8:1::1 -B 2001:db8:1::2"
+}
+
+do_test_pedit_ip4()
+{
+	local locus=$1; shift
+	local pedit_addr=$1; shift
+	local flower_addr=$1; shift
+
+	do_test_pedit_ip "$locus" "$pedit_addr set 198.51.100.1" ip	\
+			 "$flower_addr 198.51.100.1"			\
+			 "-A 192.0.2.1 -B 192.0.2.2"
+}
+
+test_ip4_src()
+{
+	do_test_pedit_ip4 "dev $swp1 ingress" "ip src" src_ip
+	do_test_pedit_ip4 "dev $swp2 egress"  "ip src" src_ip
+}
+
+test_ip4_dst()
+{
+	do_test_pedit_ip4 "dev $swp1 ingress" "ip dst" dst_ip
+	do_test_pedit_ip4 "dev $swp2 egress"  "ip dst" dst_ip
+}
+
+test_ip6_src()
+{
+	do_test_pedit_ip6 "dev $swp1 ingress" "ip6 src" src_ip
+	do_test_pedit_ip6 "dev $swp2 egress"  "ip6 src" src_ip
+}
+
+test_ip6_dst()
+{
+	do_test_pedit_ip6 "dev $swp1 ingress" "ip6 dst" dst_ip
+	do_test_pedit_ip6 "dev $swp2 egress"  "ip6 dst" dst_ip
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/pedit_l4port.sh b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
new file mode 100755
index 000000000000..10e594c55117
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/pedit_l4port.sh
@@ -0,0 +1,200 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on egress of $swp2, the
+# traffic is acted upon by a pedit action. An ingress filter installed on $h2 verifies that the
+# packet looks like expected.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |  +-|----------------------------------------------------------------|-+   |
+# |  | + $swp1                       BR                           $swp2 + |   |
+# |  +--------------------------------------------------------------------+   |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_udp_sport
+	test_udp_dport
+	test_tcp_sport
+	test_tcp_dport
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add name br1 up type bridge vlan_filtering 1
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:1::2
+}
+
+do_test_pedit_l4port_one()
+{
+	local pedit_locus=$1; shift
+	local pedit_prot=$1; shift
+	local pedit_action=$1; shift
+	local match_prot=$1; shift
+	local match_flower=$1; shift
+	local mz_flags=$1; shift
+	local saddr=$1; shift
+	local daddr=$1; shift
+
+	tc filter add $pedit_locus handle 101 pref 1 \
+	   flower action pedit ex munge $pedit_action
+	tc filter add dev $h2 ingress handle 101 pref 1 prot $match_prot \
+	   flower skip_hw $match_flower action pass
+
+	RET=0
+
+	$MZ $mz_flags $h1 -c 10 -d 20msec -p 100 \
+	    -a own -b $h2mac -q -t $pedit_prot sp=54321,dp=12345
+
+	local pkts
+	pkts=$(busywait "$TC_HIT_TIMEOUT" until_counter_is ">= 10" \
+			tc_rule_handle_stats_get "dev $h2 ingress" 101)
+	check_err $? "Expected to get 10 packets, but got $pkts."
+
+	pkts=$(tc_rule_handle_stats_get "$pedit_locus" 101)
+	((pkts >= 10))
+	check_err $? "Expected to get 10 packets on pedit rule, but got $pkts."
+
+	log_test "$pedit_locus pedit $pedit_action"
+
+	tc filter del dev $h2 ingress pref 1
+	tc filter del $pedit_locus pref 1
+}
+
+do_test_pedit_l4port()
+{
+	local locus=$1; shift
+	local prot=$1; shift
+	local pedit_port=$1; shift
+	local flower_port=$1; shift
+	local port
+
+	for port in 1 11111 65535; do
+		do_test_pedit_l4port_one "$locus" "$prot"			\
+					 "$prot $pedit_port set $port"		\
+					 ip "ip_proto $prot $flower_port $port"	\
+					 "-A 192.0.2.1 -B 192.0.2.2"
+	done
+}
+
+test_udp_sport()
+{
+	do_test_pedit_l4port "dev $swp1 ingress" udp sport src_port
+	do_test_pedit_l4port "dev $swp2 egress"  udp sport src_port
+}
+
+test_udp_dport()
+{
+	do_test_pedit_l4port "dev $swp1 ingress" udp dport dst_port
+	do_test_pedit_l4port "dev $swp2 egress"  udp dport dst_port
+}
+
+test_tcp_sport()
+{
+	do_test_pedit_l4port "dev $swp1 ingress" tcp sport src_port
+	do_test_pedit_l4port "dev $swp2 egress"  tcp sport src_port
+}
+
+test_tcp_dport()
+{
+	do_test_pedit_l4port "dev $swp1 ingress" tcp dport dst_port
+	do_test_pedit_l4port "dev $swp2 egress"  tcp dport dst_port
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/q_in_vni.sh b/tools/testing/selftests/net/forwarding/q_in_vni.sh
new file mode 100755
index 000000000000..798b13525c02
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/q_in_vni.sh
@@ -0,0 +1,348 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# |  + $h1.10             |                          |  + $h2.10              |
+# |  | 192.0.2.1/28       |                          |  | 192.0.2.2/28        |
+# |  |                    |                          |  |                     |
+# |  | + $h1.20           |                          |  | + $h2.20            |
+# |  \ | 198.51.100.1/24  |                          |  \ | 198.51.100.2/24   |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1ad)            + $swp2           | |
+# | |    vid 100 pvid untagged                              vid 100 pvid    | |
+# | |                                                           untagged    | |
+# | |  + vx100 (vxlan)                                                      | |
+# | |    local 192.0.2.17                                                   | |
+# | |    remote 192.0.2.34 192.0.2.50                                       | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | |    vid 100 pvid untagged                                              | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  192.0.2.32/28 via 192.0.2.18                                             |
+# |  192.0.2.48/28 via 192.0.2.18                                             |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 192.0.2.17/28                                                        |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRP2 (vrf) |
+# |    + $rp2                                                   |
+# |      192.0.2.18/28                                          |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)      |
+# |    | 192.0.2.33/28                         | 192.0.2.49/28  |
+# +----|---------------------------------------|----------------+
+#      |                                       |
+# +----|------------------------------+   +----|------------------------------+
+# |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
+# |      192.0.2.34/28                |   |      192.0.2.50/28                |
+# |                                   |   |                                   |
+# |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
+# |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
+# |                                   |   |                                   |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# | |                 BR2 (802.1ad) | |   | |                 BR2 (802.1ad) | |
+# | |  + vx100 (vxlan)              | |   | |  + vx100 (vxlan)              | |
+# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
+# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
+# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
+# | |    id 1000 dstport $VXPORT    | |   | |    id 1000 dstport $VXPORT    | |
+# | |    vid 100 pvid untagged      | |   | |    vid 100 pvid untagged      | |
+# | |                               | |   | |                               | |
+# | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
+# | |  | vid 100 pvid untagged      | |   | |  | vid 100 pvid untagged      | |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# |    |                              |   |    |                              |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# | |  |                  VW2 (vrf) | |   | |  |                  VW2 (vrf) | |
+# | |  + w2 (veth)                  | |   | |  + w2 (veth)                  | |
+# | |  |\                           | |   | |  |\                           | |
+# | |  | + w2.10                    | |   | |  | + w2.10                    | |
+# | |  |   192.0.2.3/28             | |   | |  |   192.0.2.4/28             | |
+# | |  |                            | |   | |  |                            | |
+# | |  + w2.20                      | |   | |  + w2.20                      | |
+# | |    198.51.100.3/24            | |   | |    198.51.100.4/24            | |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# +-----------------------------------+   +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+    "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+	vlan_create $h1 20 v$h1 198.51.100.1/24
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+	vlan_create $h2 10 v$h2 192.0.2.2/28
+	vlan_create $h2 20 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 192.0.2.17/28
+
+	ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+	ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+	ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+	ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+	ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
+		vlan_default_pvid 0 mcast_snooping 0
+	ip link set dev br1 addrgenmode none
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+
+	ip link add name vx100 type vxlan id 1000		\
+		local 192.0.2.17 dstport "$VXPORT"	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx100 up
+
+	ip link set dev vx100 master br1
+	bridge vlan add vid 100 dev vx100 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 100 dev $swp1 pvid untagged
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 100 dev $swp2 pvid untagged
+
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx100 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	bridge vlan del vid 100 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 100 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vx100 nomaster
+	ip link set dev vx100 down
+	ip link del dev vx100
+
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 192.0.2.18/28
+	__simple_if_init v1 v$rp2 192.0.2.33/28
+	__simple_if_init v3 v$rp2 192.0.2.49/28
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 192.0.2.49/28
+	__simple_if_fini v1 192.0.2.33/28
+	simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr1=$1; shift
+	local host_addr2=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/28
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
+		vlan_default_pvid 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+	bridge vlan add vid 100 dev w1 pvid untagged
+
+	ip link add name vx100 type vxlan id 1000 local $in_addr \
+		dstport "$VXPORT"
+	ip link set dev vx100 up
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 192.0.2.17 self
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx100 master br2
+	tc qdisc add dev vx100 clsact
+
+	bridge vlan add vid 100 dev vx100 pvid untagged
+
+	simple_if_init w2
+        vlan_create w2 10 vw2 $host_addr1/28
+        vlan_create w2 20 vw2 $host_addr2/24
+
+	ip route add 192.0.2.16/28 nexthop via $nh_addr
+	ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 \
+			     192.0.2.3 198.51.100.3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 \
+			     192.0.2.4 198.51.100.4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2 ": local->local"
+	ping_test $h1 192.0.2.3 ": local->remote 1"
+	ping_test $h1 192.0.2.4 ": local->remote 2"
+}
+
+test_all()
+{
+	echo "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/q_in_vni_ipv6.sh b/tools/testing/selftests/net/forwarding/q_in_vni_ipv6.sh
new file mode 100755
index 000000000000..0548b2b0d416
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/q_in_vni_ipv6.sh
@@ -0,0 +1,347 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# |  + $h1.10             |                          |  + $h2.10              |
+# |  | 2001:db8:1::1/64   |                          |  | 2001:db8:1::2/64    |
+# |  |                    |                          |  |                     |
+# |  | + $h1.20           |                          |  | + $h2.20            |
+# |  \ | 2001:db8:2::1/64 |                          |  \ | 2001:db8:2::2/64  |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1ad)            + $swp2           | |
+# | |    vid 100 pvid untagged                              vid 100 pvid    | |
+# | |                                                           untagged    | |
+# | |  + vx100 (vxlan)                                                      | |
+# | |    local 2001:db8:3::1                                                | |
+# | |    remote 2001:db8:4::1 2001:db8:5::1                                 | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | |    vid 100 pvid untagged                                              | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:4::0/64 via 2001:db8:3::2                                       |
+# |  2001:db8:5::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------+
+# |    |                                             VRP2 (vrf)   |
+# |    + $rp2                                                     |
+# |      2001:db8:3::2/64                                         |
+# |                                                               |   (maybe) HW
+# =============================================================================
+# |                                                               | (likely) SW
+# |    + v1 (veth)                             + v3 (veth)        |
+# |    | 2001:db8:4::2/64                      | 2001:db8:5::2/64 |
+# +----|---------------------------------------|------------------+
+#      |                                       |
+# +----|--------------------------------+ +----|-------------------------------+
+# |    + v2 (veth)        NS1 (netns)   | |    + v4 (veth)        NS2 (netns)  |
+# |      2001:db8:4::1/64               | |      2001:db8:5::1/64              |
+# |                                     | |                                    |
+# | 2001:db8:3::0/64 via 2001:db8:4::2  | | 2001:db8:3::0/64 via 2001:db8:5::2 |
+# | 2001:db8:5::1/128 via 2001:db8:4::2 | | 2001:db8:4::1/128 via              |
+# |                                     | |           2001:db8:5::2            |
+# | +-------------------------------+   | | +-------------------------------+  |
+# | |                 BR2 (802.1ad) |   | | |                 BR2 (802.1ad) |  |
+# | |  + vx100 (vxlan)              |   | | |  + vx100 (vxlan)              |  |
+# | |    local 2001:db8:4::1        |   | | |    local 2001:db8:5::1        |  |
+# | |    remote 2001:db8:3::1       |   | | |    remote 2001:db8:3::1       |  |
+# | |    remote 2001:db8:5::1       |   | | |    remote 2001:db8:4::1       |  |
+# | |    id 1000 dstport $VXPORT    |   | | |    id 1000 dstport $VXPORT    |  |
+# | |    vid 100 pvid untagged      |   | | |    vid 100 pvid untagged      |  |
+# | |                               |   | | |                               |  |
+# | |  + w1 (veth)                  |   | | |  + w1 (veth)                  |  |
+# | |  | vid 100 pvid untagged      |   | | |  | vid 100 pvid untagged      |  |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# |    |                                | |    |                               |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# | |  |                  VW2 (vrf) |   | | |  |                  VW2 (vrf) |  |
+# | |  + w2 (veth)                  |   | | |  + w2 (veth)                  |  |
+# | |  |\                           |   | | |  |\                           |  |
+# | |  | + w2.10                    |   | | |  | + w2.10                    |  |
+# | |  |   2001:db8:1::3/64         |   | | |  |   2001:db8:1::4/64         |  |
+# | |  |                            |   | | |  |                            |  |
+# | |  + w2.20                      |   | | |  + w2.20                      |  |
+# | |    2001:db8:2::3/64           |   | | |    2001:db8:2::4/64           |  |
+# | +-------------------------------+   | | +-------------------------------+  |
+# +-------------------------------------+ +------------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv6
+    "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+	vlan_create $h1 10 v$h1 2001:db8:1::1/64
+	vlan_create $h1 20 v$h1 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+	vlan_create $h2 10 v$h2 2001:db8:1::2/64
+	vlan_create $h2 20 v$h2 2001:db8:2::2/64
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 2001:db8:3::1/64
+
+	ip route add 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+	ip route add 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+}
+
+rp1_unset_addr()
+{
+	ip route del 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+	ip route del 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+
+	ip address del dev $rp1 2001:db8:3::1/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
+		vlan_default_pvid 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+
+	ip link add name vx100 type vxlan id 1000	\
+		local 2001:db8:3::1 dstport "$VXPORT"	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx100 up
+
+	ip link set dev vx100 master br1
+	bridge vlan add vid 100 dev vx100 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 100 dev $swp1 pvid untagged
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 100 dev $swp2 pvid untagged
+
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 2001:db8:5::1 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx100 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx100 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	bridge vlan del vid 100 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 100 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vx100 nomaster
+	ip link set dev vx100 down
+	ip link del dev vx100
+
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 2001:db8:3::2/64
+	__simple_if_init v1 v$rp2 2001:db8:4::2/64
+	__simple_if_init v3 v$rp2 2001:db8:5::2/64
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 2001:db8:5::2/64
+	__simple_if_fini v1 2001:db8:4::2/64
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr1=$1; shift
+	local host_addr2=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/64
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 1 vlan_protocol 802.1ad \
+		vlan_default_pvid 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+	bridge vlan add vid 100 dev w1 pvid untagged
+
+	ip link add name vx100 type vxlan id 1000 local $in_addr \
+		dstport "$VXPORT" udp6zerocsumrx
+	ip link set dev vx100 up
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst 2001:db8:3::1 self
+	bridge fdb append dev vx100 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx100 master br2
+	tc qdisc add dev vx100 clsact
+
+	bridge vlan add vid 100 dev vx100 pvid untagged
+
+	simple_if_init w2
+        vlan_create w2 10 vw2 $host_addr1/64
+        vlan_create w2 20 vw2 $host_addr2/64
+
+	ip route add 2001:db8:3::0/64 nexthop via $nh_addr
+	ip route add $other_in_addr/128 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 2001:db8:4::1 2001:db8:5::1 2001:db8:4::2 \
+			    2001:db8:1::3 2001:db8:2::3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 2001:db8:5::1 2001:db8:4::1 2001:db8:5::2 \
+			     2001:db8:1::4 2001:db8:2::4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:1::2 ": local->local"
+	ping6_test $h1 2001:db8:1::3 ": local->remote 1"
+	ping6_test $h1 2001:db8:1::4 ": local->remote 2"
+}
+
+test_all()
+{
+	echo "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router.sh b/tools/testing/selftests/net/forwarding/router.sh
new file mode 100755
index 000000000000..dfb6646cb97b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router.sh
@@ -0,0 +1,369 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+                     +----------------------+
+# | H1                 |                     |                   H2 |
+# |                    |                     |                      |
+# |              $h1 + |                     | + $h2                |
+# |     192.0.2.2/24 | |                     | | 198.51.100.2/24    |
+# | 2001:db8:1::2/64 | |                     | | 2001:db8:2::2/64   |
+# |                  | |                     | |                    |
+# +------------------|-+                     +-|--------------------+
+#                    |                         |
+# +------------------|-------------------------|--------------------+
+# | SW               |                         |                    |
+# |                  |                         |                    |
+# |             $rp1 +                         + $rp2               |
+# |     192.0.2.1/24                             198.51.100.1/24    |
+# | 2001:db8:1::1/64                             2001:db8:2::1/64   |
+# |                                                                 |
+# +-----------------------------------------------------------------+
+#
+#shellcheck disable=SC2034 # SC doesn't see our uses of global variables
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	sip_in_class_e
+	mc_mac_mismatch
+	ipv4_sip_equal_dip
+	ipv6_sip_equal_dip
+	ipv4_dip_link_local
+	ipv4_sip_link_local
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+require_command $MCD
+require_command $MC_CLI
+table_name=selftests
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+	ip address add 2001:db8:1::2/64 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 2001:db8:1::2/64 dev $h1
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+	ip address add 2001:db8:2::2/64 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 2001:db8:2::2/64 dev $h2
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp2 clsact
+
+	ip address add 192.0.2.1/24 dev $rp1
+	ip address add 2001:db8:1::1/64 dev $rp1
+
+	ip address add 198.51.100.1/24 dev $rp2
+	ip address add 2001:db8:2::1/64 dev $rp2
+}
+
+router_destroy()
+{
+	ip address del 2001:db8:2::1/64 dev $rp2
+	ip address del 198.51.100.1/24 dev $rp2
+
+	ip address del 2001:db8:1::1/64 dev $rp1
+	ip address del 192.0.2.1/24 dev $rp1
+
+	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+start_mcd()
+{
+	SMCROUTEDIR="$(mktemp -d)"
+
+	for ((i = 1; i <= $NUM_NETIFS; ++i)); do
+		echo "phyint ${NETIFS[p$i]} enable" >> \
+			$SMCROUTEDIR/$table_name.conf
+	done
+
+	$MCD -N -I $table_name -f $SMCROUTEDIR/$table_name.conf \
+		-P $SMCROUTEDIR/$table_name.pid
+}
+
+kill_mcd()
+{
+	pkill $MCD
+	rm -rf $SMCROUTEDIR
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1mac=$(mac_get $rp1)
+
+	start_mcd
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	kill_mcd
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+sip_in_class_e()
+{
+	RET=0
+
+	# Disable rpfilter to prevent packets to be dropped because of it.
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.$rp1.rp_filter 0
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower src_ip 240.0.0.1 ip_proto udp action pass
+
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+		-A 240.0.0.1 -b $rp1mac -B 198.51.100.2 -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "Source IP in class E"
+
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+	sysctl_restore net.ipv4.conf.$rp1.rp_filter
+	sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+create_mcast_sg()
+{
+	local if_name=$1; shift
+	local s_addr=$1; shift
+	local mcast=$1; shift
+	local dest_ifs=${@}
+
+	$MC_CLI -I $table_name add $if_name $s_addr $mcast $dest_ifs
+}
+
+delete_mcast_sg()
+{
+	local if_name=$1; shift
+	local s_addr=$1; shift
+	local mcast=$1; shift
+	local dest_ifs=${@}
+
+	$MC_CLI -I $table_name remove $if_name $s_addr $mcast $dest_ifs
+}
+
+__mc_mac_mismatch()
+{
+	local desc=$1; shift
+	local proto=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local flags=${1:-""}; shift
+	local dmac=01:02:03:04:05:06
+
+	RET=0
+
+	tc filter add dev $rp2 egress protocol $proto pref 1 handle 101 \
+		flower dst_ip $dip action pass
+
+	create_mcast_sg $rp1 $sip $dip $rp2
+
+	$MZ $flags $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b $dmac \
+		-B $dip -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "Multicast MAC mismatch: $desc"
+
+	delete_mcast_sg $rp1 $sip $dip $rp2
+	tc filter del dev $rp2 egress protocol $proto pref 1 handle 101 flower
+}
+
+mc_mac_mismatch()
+{
+	__mc_mac_mismatch "IPv4" "ip" 192.0.2.2 225.1.2.3
+	__mc_mac_mismatch "IPv6" "ipv6" 2001:db8:1::2 ff0e::3 "-6"
+}
+
+ipv4_sip_equal_dip()
+{
+	RET=0
+
+	# Disable rpfilter to prevent packets to be dropped because of it.
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.$rp1.rp_filter 0
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower src_ip 198.51.100.2  action pass
+
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+		-A 198.51.100.2 -b $rp1mac -B 198.51.100.2 -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "Source IP is equal to destination IP: IPv4"
+
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+	sysctl_restore net.ipv4.conf.$rp1.rp_filter
+	sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+ipv6_sip_equal_dip()
+{
+	RET=0
+
+	tc filter add dev $rp2 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip 2001:db8:2::2 action pass
+
+	$MZ -6 $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec \
+		-A 2001:db8:2::2 -b $rp1mac -B 2001:db8:2::2 -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "Source IP is equal to destination IP: IPv6"
+
+	tc filter del dev $rp2 egress protocol ipv6 pref 1 handle 101 flower
+}
+
+ipv4_dip_link_local()
+{
+	local dip=169.254.1.1
+
+	RET=0
+
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 \
+		flower dst_ip $dip action pass
+
+	ip neigh add 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
+	ip route add 169.254.1.0/24 dev $rp2
+
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b $rp1mac -B $dip -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "IPv4 destination IP is link-local"
+
+	ip route del 169.254.1.0/24 dev $rp2
+	ip neigh del 169.254.1.1 lladdr 00:11:22:33:44:55 dev $rp2
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+ipv4_sip_link_local()
+{
+	local sip=169.254.1.1
+
+	RET=0
+
+	# Disable rpfilter to prevent packets to be dropped because of it.
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf."$rp1".rp_filter 0
+
+	tc filter add dev "$rp2" egress protocol ip pref 1 handle 101 \
+		flower src_ip "$sip" action pass
+
+	$MZ "$h1" -t udp "sp=54321,dp=12345" -c 5 -d 1msec -b "$rp1mac" \
+		-A "$sip" -B 198.51.100.2 -q
+
+	tc_check_packets "dev $rp2 egress" 101 5
+	check_err $? "Packets were dropped"
+
+	log_test "IPv4 source IP is link-local"
+
+	tc filter del dev "$rp2" egress protocol ip pref 1 handle 101 flower
+	sysctl_restore net.ipv4.conf."$rp1".rp_filter
+	sysctl_restore net.ipv4.conf.all.rp_filter
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge.sh b/tools/testing/selftests/net/forwarding/router_bridge.sh
new file mode 100755
index 000000000000..0182eb2abfa6
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge.sh
@@ -0,0 +1,190 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +------------------------+                           +----------------------+
+# | H1 (vrf)               |                           |             H2 (vrf) |
+# |    + $h1               |                           |  + $h2               |
+# |    | 192.0.2.1/28      |                           |  | 192.0.2.130/28    |
+# |    | 2001:db8:1::1/64  |                           |  | 2001:db8:2::2/64  |
+# |    |                   |                           |  |                   |
+# +----|-------------------+                           +--|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|-----------------------------+                    + $swp2             |
+# | |  + $swp1      BR1 (802.1q)     |                      192.0.2.129/28    |
+# | |               192.0.2.2/28     |                      2001:db8:2::1/64  |
+# | |               2001:db8:1::1/64 |                                        |
+# | |                                |                                        |
+# | +--------------------------------+                                        |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	config_remaster
+	ping_ipv4
+	ping_ipv6
+	config_remove_pvid
+	ping_ipv4_fails
+	ping_ipv6_fails
+	config_add_pvid
+	ping_ipv4
+	ping_ipv6
+	config_late_pvid
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.128/28 vrf v$h1
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+	ip link add name br1 address $(mac_get $swp1) \
+		type bridge vlan_filtering 1
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+	ip link set dev $swp2 up
+	__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+	__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+	ip link set dev $swp2 down
+
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link del dev br1
+}
+
+config_remaster()
+{
+	log_info "Remaster bridge slave"
+
+	ip link set dev $swp1 nomaster
+	sleep 2
+	ip link set dev $swp1 master br1
+}
+
+config_remove_pvid()
+{
+	log_info "Remove PVID from the bridge"
+
+	bridge vlan add dev br1 vid 1 self
+	sleep 2
+}
+
+config_add_pvid()
+{
+	log_info "Add PVID to the bridge"
+
+	bridge vlan add dev br1 vid 1 self pvid untagged
+	sleep 2
+}
+
+config_late_pvid()
+{
+	log_info "Add bridge PVID after enslaving port"
+
+	ip link set dev $swp1 nomaster
+	ip link set dev br1 type bridge vlan_default_pvid 0
+	sleep 2
+	ip link set dev $swp1 master br1
+	ip link set dev br1 type bridge vlan_default_pvid 1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.130
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+ping_ipv4_fails()
+{
+	ping_test_fails $h1 192.0.2.130
+}
+
+ping_ipv6_fails()
+{
+	ping6_test_fails $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_1d.sh b/tools/testing/selftests/net/forwarding/router_bridge_1d.sh
new file mode 100755
index 000000000000..6d51f2ca72a2
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_1d.sh
@@ -0,0 +1,185 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------------------------+      +----------------------+
+# | H1 (vrf)                                    |      |             H2 (vrf) |
+# |    + $h1.100            + $h1.200           |      |  + $h2               |
+# |    | 192.0.2.1/28       | 192.0.2.17/28     |      |  | 192.0.2.130/28    |
+# |    | 2001:db8:1::1/64   | 2001:db8:3::1/64  |      |  | 192.0.2.146/28    |
+# |    \_________ __________/                   |      |  | 2001:db8:2::2/64  |
+# |              V                              |      |  | 2001:db8:4::2/64  |
+# |              + $h1                          |      |  |                   |
+# +--------------|------------------------------+      +--|-------------------+
+#                |                                        |
+# +--------------|----------------------------------------|-------------------+
+# | SW           + $swp1                                  + $swp2             |
+# |              |                                          192.0.2.129/28    |
+# |              |                                          192.0.2.145/28    |
+# |              |                                          2001:db8:2::1/64  |
+# |      ________^___________________________               2001:db8:4::1/64  |
+# |     /                                    \                                |
+# | +---|------------------------------+ +---|------------------------------+ |
+# | |   + $swp1.100   BR1 (802.1d)     | |   + $swp1.200   BR2 (802.1d)     | |
+# | |                 192.0.2.2/28     | |                 192.0.2.18/28    | |
+# | |                 2001:db8:1::2/64 | |                 2001:db8:3::2/64 | |
+# | |                                  | |                                  | |
+# | +----------------------------------+ +----------------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	config_remaster
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 100 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create $h1 200 v$h1 192.0.2.17/28 2001:db8:3::1/64
+	ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -4 route add 192.0.2.144/28 vrf v$h1 nexthop via 192.0.2.18
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+	ip -6 route add 2001:db8:4::/64 vrf v$h1 nexthop via 2001:db8:3::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:4::/64 vrf v$h1
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.144/28 vrf v$h1
+	ip -4 route del 192.0.2.128/28 vrf v$h1
+	vlan_destroy $h1 200
+	vlan_destroy $h1 100
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64 \
+			   192.0.2.146/28 2001:db8:4::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+	ip -4 route add 192.0.2.16/28 vrf v$h2 nexthop via 192.0.2.145
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+	ip -6 route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:4::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:3::/64 vrf v$h2
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.16/28 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64 \
+			   192.0.2.146/28 2001:db8:4::2/64
+}
+
+router_create()
+{
+	ip link set dev $swp1 up
+
+	vlan_create $swp1 100
+	ip link add name br1 type bridge vlan_filtering 0
+	ip link set dev br1 address $(mac_get $swp1.100)
+	ip link set dev $swp1.100 master br1
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+	ip link set dev br1 up
+
+	vlan_create $swp1 200
+	ip link add name br2 type bridge vlan_filtering 0
+	ip link set dev br2 address $(mac_get $swp1.200)
+	ip link set dev $swp1.200 master br2
+	__addr_add_del br2 add 192.0.2.18/28 2001:db8:3::2/64
+	ip link set dev br2 up
+
+	ip link set dev $swp2 up
+	__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64 \
+				 192.0.2.145/28 2001:db8:4::1/64
+}
+
+router_destroy()
+{
+	__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64 \
+				 192.0.2.145/28 2001:db8:4::1/64
+	ip link set dev $swp2 down
+
+	__addr_add_del br2 del 192.0.2.18/28 2001:db8:3::2/64
+	ip link set dev $swp1.200 nomaster
+	ip link del dev br2
+	vlan_destroy $swp1 200
+
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+	ip link set dev $swp1.100 nomaster
+	ip link del dev br1
+	vlan_destroy $swp1 100
+
+	ip link set dev $swp1 down
+}
+
+config_remaster()
+{
+	log_info "Remaster bridge slaves"
+
+	ip link set dev $swp1.100 nomaster
+	ip link set dev $swp1.200 nomaster
+	sleep 2
+	ip link set dev $swp1.200 master br2
+	ip link set dev $swp1.100 master br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.130 ": via 100"
+	ping_test $h1 192.0.2.146 ": via 200"
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2 ": via 100"
+	ping6_test $h1 2001:db8:4::2 ": via 200"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_1d_lag.sh b/tools/testing/selftests/net/forwarding/router_bridge_1d_lag.sh
new file mode 100755
index 000000000000..16583a470ec3
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_1d_lag.sh
@@ -0,0 +1,409 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------------------------------+
+# | H1 (vrf)                                   |
+# |                                            |
+# |    + LAG1.100          + LAG1.200          |
+# |    | 192.0.2.1/28      | 192.0.2.17/28     |
+# |    | 2001:db8:1::1/64  | 2001:db8:3:1/64   |
+# |    \___________ _______/                   |
+# |                v                           |
+# |                + LAG1 (team)               |
+# |                |                           |
+# |            ____^____                       |
+# |           /         \                      |
+# |          + $h1       + $h4                 |
+# |          |           |                     |
+# +----------|-----------|---------------------+
+#            |           |
+# +----------|-----------|---------------------+
+# | SW       |           |                     |
+# |          + $swp1     + $swp4               |
+# |           \____ ____/                      |
+# |                v                           |
+# |    LAG2 (team) +                           |
+# |                |                           |
+# |         _______^______________             |
+# |        /                      \            |
+# | +------|------------+ +-------|----------+ |
+# | |      + LAG2.100   | |       + LAG2.200 | |
+# | |                   | |                  | |
+# | |  BR1 (802.1d)     | | BR2 (802.1d)     | |
+# | |  192.0.2.2/28     | | 192.0.2.18/28    | |
+# | |  2001:db8:1::2/64 | | 2001:db8:3:2/64  | |
+# | |                   | |                  | |
+# | +-------------------+ +------------------+ |
+# |                                            |
+# |  + LAG3.100             + LAG3.200         |
+# |  | 192.0.2.129/28       | 192.0.2.145/28   |
+# |  | 2001:db8:2::1/64     | 2001:db8:4::1/64 |
+# |  |                      |                  |
+# |  \_________ ___________/                   |
+# |            v                               |
+# |            + LAG3 (team)                   |
+# |        ____|____                           |
+# |       /         \                          |
+# |       + $swp2   + $swp3                    |
+# |       |         |                          |
+# +-------|---------|--------------------------+
+#         |         |
+# +-------|---------|--------------------------+
+# |       |         |                          |
+# |       + $h2     + $h3                      |
+# |       \____ ___/                           |
+# |            |                               |
+# |            + LAG4 (team)                   |
+# |            |                               |
+# |  __________^__________                     |
+# | /                     \                    |
+# | |                     |                    |
+# | + LAG4.100            + LAG4.200           |
+# |   192.0.2.130/28        192.0.2.146/28     |
+# |   2001:db8:2::2/64      2001:db8:4::2/64   |
+# |                                            |
+# | H2 (vrf)                                   |
+# +--------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG2 slaves )
+	config_deslave_swp4
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_enslave_swp4
+	config_deslave_swp1
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_deslave_swp4
+	config_enslave_swp1
+	config_enslave_swp4
+	config_wait
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG2 itself )
+	config_remaster_lag2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG3 slaves )
+	config_deslave_swp2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_enslave_swp2
+	config_deslave_swp3
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_deslave_swp2
+	config_enslave_swp3
+	config_enslave_swp2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+"
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+	team_create lag1 lacp
+	ip link set dev lag1 addrgenmode none
+	ip link set dev lag1 address $(mac_get $h1)
+	ip link set dev $h1 master lag1
+	ip link set dev $h4 master lag1
+	simple_if_init lag1
+	ip link set dev $h1 up
+	ip link set dev $h4 up
+
+	vlan_create lag1 100 vlag1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create lag1 200 vlag1 192.0.2.17/28 2001:db8:3::1/64
+
+	ip -4 route add 192.0.2.128/28 vrf vlag1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf vlag1 nexthop via 2001:db8:1::2
+
+	ip -4 route add 192.0.2.144/28 vrf vlag1 nexthop via 192.0.2.18
+	ip -6 route add 2001:db8:4::/64 vrf vlag1 nexthop via 2001:db8:3::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:4::/64 vrf vlag1
+	ip -4 route del 192.0.2.144/28 vrf vlag1
+
+	ip -6 route del 2001:db8:2::/64 vrf vlag1
+	ip -4 route del 192.0.2.128/28 vrf vlag1
+
+	vlan_destroy lag1 200
+	vlan_destroy lag1 100
+
+	ip link set dev $h4 down
+	ip link set dev $h1 down
+	simple_if_fini lag1
+	ip link set dev $h4 nomaster
+	ip link set dev $h1 nomaster
+	team_destroy lag1
+}
+
+h2_create()
+{
+	team_create lag4 lacp
+	ip link set dev lag4 addrgenmode none
+	ip link set dev lag4 address $(mac_get $h2)
+	ip link set dev $h2 master lag4
+	ip link set dev $h3 master lag4
+	simple_if_init lag4
+	ip link set dev $h2 up
+	ip link set dev $h3 up
+
+	vlan_create lag4 100 vlag4 192.0.2.130/28 2001:db8:2::2/64
+	vlan_create lag4 200 vlag4 192.0.2.146/28 2001:db8:4::2/64
+
+	ip -4 route add 192.0.2.0/28 vrf vlag4 nexthop via 192.0.2.129
+	ip -6 route add 2001:db8:1::/64 vrf vlag4 nexthop via 2001:db8:2::1
+
+	ip -4 route add 192.0.2.16/28 vrf vlag4 nexthop via 192.0.2.145
+	ip -6 route add 2001:db8:3::/64 vrf vlag4 nexthop via 2001:db8:4::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:3::/64 vrf vlag4
+	ip -4 route del 192.0.2.16/28 vrf vlag4
+
+	ip -6 route del 2001:db8:1::/64 vrf vlag4
+	ip -4 route del 192.0.2.0/28 vrf vlag4
+
+	vlan_destroy lag4 200
+	vlan_destroy lag4 100
+
+	ip link set dev $h3 down
+	ip link set dev $h2 down
+	simple_if_fini lag4
+	ip link set dev $h3 nomaster
+	ip link set dev $h2 nomaster
+	team_destroy lag4
+}
+
+router_create()
+{
+	team_create lag2 lacp
+	ip link set dev lag2 addrgenmode none
+	ip link set dev lag2 address $(mac_get $swp1)
+	ip link set dev $swp1 master lag2
+	ip link set dev $swp4 master lag2
+
+	vlan_create lag2 100
+	vlan_create lag2 200
+
+	ip link add name br1 type bridge vlan_filtering 0
+	ip link set dev br1 address $(mac_get lag2.100)
+	ip link set dev lag2.100 master br1
+
+	ip link add name br2 type bridge vlan_filtering 0
+	ip link set dev br2 address $(mac_get lag2.200)
+	ip link set dev lag2.200 master br2
+
+	ip link set dev $swp1 up
+	ip link set dev $swp4 up
+	ip link set dev br1 up
+	ip link set dev br2 up
+
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+	__addr_add_del br2 add 192.0.2.18/28 2001:db8:3::2/64
+
+	team_create lag3 lacp
+	ip link set dev lag3 addrgenmode none
+	ip link set dev lag3 address $(mac_get $swp2)
+	ip link set dev $swp2 master lag3
+	ip link set dev $swp3 master lag3
+	ip link set dev $swp2 up
+	ip link set dev $swp3 up
+
+	vlan_create lag3 100
+	vlan_create lag3 200
+
+	__addr_add_del lag3.100 add 192.0.2.129/28 2001:db8:2::1/64
+	__addr_add_del lag3.200 add 192.0.2.145/28 2001:db8:4::1/64
+}
+
+router_destroy()
+{
+	__addr_add_del lag3.200 del 192.0.2.145/28 2001:db8:4::1/64
+	__addr_add_del lag3.100 del 192.0.2.129/28 2001:db8:2::1/64
+
+	vlan_destroy lag3 200
+	vlan_destroy lag3 100
+
+	ip link set dev $swp3 down
+	ip link set dev $swp2 down
+	ip link set dev $swp3 nomaster
+	ip link set dev $swp2 nomaster
+	team_destroy lag3
+
+	__addr_add_del br2 del 192.0.2.18/28 2001:db8:3::2/64
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+
+	ip link set dev br2 down
+	ip link set dev br1 down
+	ip link set dev $swp4 down
+	ip link set dev $swp1 down
+
+	ip link set dev lag2.200 nomaster
+	ip link del dev br2
+
+	ip link set dev lag2.100 nomaster
+	ip link del dev br1
+
+	vlan_destroy lag2 200
+	vlan_destroy lag2 100
+
+	ip link set dev $swp4 nomaster
+	ip link set dev $swp1 nomaster
+	team_destroy lag2
+}
+
+config_remaster_lag2()
+{
+	log_info "Remaster bridge slaves"
+
+	ip link set dev lag2.200 nomaster
+	ip link set dev lag2.100 nomaster
+	sleep 2
+	ip link set dev lag2.100 master br1
+	ip link set dev lag2.200 master br2
+}
+
+config_deslave()
+{
+	local netdev=$1; shift
+
+	log_info "Deslave $netdev"
+	ip link set dev $netdev down
+	ip link set dev $netdev nomaster
+	ip link set dev $netdev up
+}
+
+config_deslave_swp1()
+{
+	config_deslave $swp1
+}
+
+config_deslave_swp2()
+{
+	config_deslave $swp2
+}
+
+config_deslave_swp3()
+{
+	config_deslave $swp3
+}
+
+config_deslave_swp4()
+{
+	config_deslave $swp4
+}
+
+config_enslave()
+{
+	local netdev=$1; shift
+	local master=$1; shift
+
+	log_info "Enslave $netdev to $master"
+	ip link set dev $netdev down
+	ip link set dev $netdev master $master
+	ip link set dev $netdev up
+}
+
+config_enslave_swp1()
+{
+	config_enslave $swp1 lag2
+}
+
+config_enslave_swp2()
+{
+	config_enslave $swp2 lag3
+}
+
+config_enslave_swp3()
+{
+	config_enslave $swp3 lag3
+}
+
+config_enslave_swp4()
+{
+	config_enslave $swp4 lag2
+}
+
+config_wait()
+{
+	setup_wait_dev lag2
+	setup_wait_dev lag3
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	h4=${NETIFS[p7]}
+	swp4=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test lag1.100 192.0.2.130 ": via 100"
+	ping_test lag1.200 192.0.2.146 ": via 200"
+}
+
+ping_ipv6()
+{
+	ping6_test lag1.100 2001:db8:2::2 ": via 100"
+	ping6_test lag1.200 2001:db8:4::2 ": via 200"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_lag.sh b/tools/testing/selftests/net/forwarding/router_bridge_lag.sh
new file mode 100755
index 000000000000..2a4cd1af1b85
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_lag.sh
@@ -0,0 +1,324 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +----------------------------+                   +--------------------------+
+# | H1 (vrf)                   |                   |                 H2 (vrf) |
+# |                            |                   |                          |
+# |        + LAG1 (team)       |                   |     + LAG4 (team)        |
+# |        | 192.0.2.1/28      |                   |     | 192.0.2.130/28     |
+# |        | 2001:db8:1::1/64  |                   |     | 2001:db8:2::2/64   |
+# |      __^___                |                   |   __^_____               |
+# |     /      \               |                   |  /        \              |
+# |    + $h1    + $h4          |                   | + $h2      + $h3         |
+# |    |        |              |                   | |          |             |
+# +----|--------|--------------+                   +-|----------|-------------+
+#      |        |                                    |          |
+# +----|--------|------------------------------------|----------|-------------+
+# | SW |        |                                    |          |             |
+# |    + $swp1  + $swp4                              + $swp2    + $swp3       |
+# |     \__ ___/                                      \__ _____/              |
+# |        v                                             v                    |
+# | +------|-------------------------------+             |                    |
+# | |      + LAG2       BR1 (802.1q)       |             + LAG3 (team)        |
+# | |        (team)       192.0.2.2/28     |               192.0.2.129/28     |
+# | |                     2001:db8:1::2/64 |               2001:db8:2::1/64   |
+# | |                                      |                                  |
+# | +--------------------------------------+                                  |
+# +---------------------------------------------------------------------------+
+
+: ${ALL_TESTS:="
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG2 slaves )
+	config_deslave_swp4
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_enslave_swp4
+	config_deslave_swp1
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_deslave_swp4
+	config_enslave_swp1
+	config_enslave_swp4
+	config_wait
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG2 itself )
+	config_remaster_lag2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+
+	$(: exercise remastering of LAG3 slaves )
+	config_deslave_swp2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_enslave_swp2
+	config_deslave_swp3
+	config_wait
+	ping_ipv4
+	ping_ipv6
+	config_deslave_swp2
+	config_enslave_swp3
+	config_enslave_swp2
+	config_wait
+	ping_ipv4
+	ping_ipv6
+
+	$(: move LAG3 to a bridge and then out )
+	config_remaster_lag3
+	config_wait
+	ping_ipv4
+	ping_ipv6
+    "}
+REQUIRE_TEAMD="yes"
+NUM_NETIFS=8
+: ${lib_dir:=.}
+source $lib_dir/lib.sh
+$EXTRA_SOURCE
+
+h1_create()
+{
+	team_create lag1 lacp
+	ip link set dev lag1 address $(mac_get $h1)
+	ip link set dev $h1 master lag1
+	ip link set dev $h4 master lag1
+	simple_if_init lag1 192.0.2.1/28 2001:db8:1::1/64
+	ip link set dev $h1 up
+	ip link set dev $h4 up
+	ip -4 route add 192.0.2.128/28 vrf vlag1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf vlag1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf vlag1
+	ip -4 route del 192.0.2.128/28 vrf vlag1
+	ip link set dev $h4 down
+	ip link set dev $h1 down
+	simple_if_fini lag1 192.0.2.1/28 2001:db8:1::1/64
+	ip link set dev $h4 nomaster
+	ip link set dev $h1 nomaster
+	team_destroy lag1
+}
+
+h2_create()
+{
+	team_create lag4 lacp
+	ip link set dev lag4 address $(mac_get $h2)
+	ip link set dev $h2 master lag4
+	ip link set dev $h3 master lag4
+	simple_if_init lag4 192.0.2.130/28 2001:db8:2::2/64
+	ip link set dev $h2 up
+	ip link set dev $h3 up
+	ip -4 route add 192.0.2.0/28 vrf vlag4 nexthop via 192.0.2.129
+	ip -6 route add 2001:db8:1::/64 vrf vlag4 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf vlag4
+	ip -4 route del 192.0.2.0/28 vrf vlag4
+	ip link set dev $h3 down
+	ip link set dev $h2 down
+	simple_if_fini lag4 192.0.2.130/28 2001:db8:2::2/64
+	ip link set dev $h3 nomaster
+	ip link set dev $h2 nomaster
+	team_destroy lag4
+}
+
+router_create()
+{
+	team_create lag2 lacp
+	ip link set dev lag2 address $(mac_get $swp1)
+	ip link set dev $swp1 master lag2
+	ip link set dev $swp4 master lag2
+
+	ip link add name br1 address $(mac_get lag2) \
+		type bridge vlan_filtering 1
+	ip link set dev lag2 master br1
+
+	ip link set dev $swp1 up
+	ip link set dev $swp4 up
+	ip link set dev br1 up
+
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+	team_create lag3 lacp
+	ip link set dev lag3 address $(mac_get $swp2)
+	ip link set dev $swp2 master lag3
+	ip link set dev $swp3 master lag3
+	ip link set dev $swp2 up
+	ip link set dev $swp3 up
+	__addr_add_del lag3 add 192.0.2.129/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+	__addr_add_del lag3 del 192.0.2.129/28 2001:db8:2::1/64
+	ip link set dev $swp3 down
+	ip link set dev $swp2 down
+	ip link set dev $swp3 nomaster
+	ip link set dev $swp2 nomaster
+	team_destroy lag3
+
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+
+	ip link set dev $swp4 down
+	ip link set dev $swp1 down
+	ip link set dev br1 down
+
+	ip link set dev lag2 nomaster
+	ip link del dev br1
+
+	ip link set dev $swp4 nomaster
+	ip link set dev $swp1 nomaster
+	team_destroy lag2
+}
+
+config_remaster_lag2()
+{
+	log_info "Remaster bridge slave"
+
+	ip link set dev lag2 nomaster
+	sleep 2
+	ip link set dev lag2 master br1
+}
+
+config_remaster_lag3()
+{
+	log_info "Move lag3 to the bridge, then out again"
+
+	ip link set dev lag3 master br1
+	sleep 2
+	ip link set dev lag3 nomaster
+}
+
+config_deslave()
+{
+	local netdev=$1; shift
+
+	log_info "Deslave $netdev"
+	ip link set dev $netdev down
+	ip link set dev $netdev nomaster
+	ip link set dev $netdev up
+}
+
+config_deslave_swp1()
+{
+	config_deslave $swp1
+}
+
+config_deslave_swp2()
+{
+	config_deslave $swp2
+}
+
+config_deslave_swp3()
+{
+	config_deslave $swp3
+}
+
+config_deslave_swp4()
+{
+	config_deslave $swp4
+}
+
+config_enslave()
+{
+	local netdev=$1; shift
+	local master=$1; shift
+
+	log_info "Enslave $netdev to $master"
+	ip link set dev $netdev down
+	ip link set dev $netdev master $master
+	ip link set dev $netdev up
+}
+
+config_enslave_swp1()
+{
+	config_enslave $swp1 lag2
+}
+
+config_enslave_swp2()
+{
+	config_enslave $swp2 lag3
+}
+
+config_enslave_swp3()
+{
+	config_enslave $swp3 lag3
+}
+
+config_enslave_swp4()
+{
+	config_enslave $swp4 lag2
+}
+
+config_wait()
+{
+	setup_wait_dev lag2
+	setup_wait_dev lag3
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	h4=${NETIFS[p7]}
+	swp4=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test lag1 192.0.2.130
+}
+
+ping_ipv6()
+{
+	ping6_test lag1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_pvid_vlan_upper.sh b/tools/testing/selftests/net/forwarding/router_bridge_pvid_vlan_upper.sh
new file mode 100755
index 000000000000..76e4941fef73
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_pvid_vlan_upper.sh
@@ -0,0 +1,155 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +----------------------------+
+# |                   H1 (vrf) |
+# |   + $h1.10                 |                      +----------------------+
+# |   | 192.0.2.1/28           |                      |             H2 (vrf) |
+# |   | 2001:db8:1::1/64       |                      |  + $h2               |
+# |   |                        |                      |  | 192.0.2.130/28    |
+# |   + $h1                    |                      |  | 2001:db8:2::2/64  |
+# +---|------------------------+                      +--|-------------------+
+#     |                                                  |
+# +---|--------------------------------------------------|-------------------+
+# |   |                            router (main VRF)     |                   |
+# | +-|----------------------------------+               + $swp2             |
+# | | + $swp1      BR1 (802.1q, pvid=10) |                 192.0.2.129/28    |
+# | |              192.0.2.2/28          |                 2001:db8:2::1/64  |
+# | |              2001:db8:1::2/64      |                                   |
+# | +------------------------------------+                                   |
+# +--------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	shuffle_pvid
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.128/28 vrf v$h1
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+	ip link add name br1 address $(mac_get $swp1) \
+		type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br1 up
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 up
+	__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+
+	bridge vlan add dev br1 vid 10 pvid untagged self
+	bridge vlan add dev $swp1 vid 10
+}
+
+router_destroy()
+{
+	bridge vlan del dev $swp1 vid 10
+	bridge vlan del dev br1 vid 10 self
+
+	__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+	ip link set dev $swp2 down
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+shuffle_pvid()
+{
+	log_info "Add and remove VLAN upper for PVID VLAN"
+
+	# Adding and removing a VLAN upper for the PVID VLAN shouldn't change
+	# anything. The address is arbitrary, just to make sure it will be an L3
+	# netdevice.
+	vlan_create br1 10 "" 192.0.2.33/28
+	sleep 1
+	vlan_destroy br1 10
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.130
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh b/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh
new file mode 100755
index 000000000000..b76a4a707a5b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_vlan.sh
@@ -0,0 +1,224 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +------------------------------------------------+   +----------------------+
+# | H1 (vrf)                                       |   |             H2 (vrf) |
+# |    + $h1.555           + $h1.777               |   |  + $h2               |
+# |    | 192.0.2.1/28      | 192.0.2.17/28         |   |  | 192.0.2.130/28    |
+# |    | 2001:db8:1::1/64  | 2001:db8:3::1/64      |   |  | 192.0.2.146/28    |
+# |    | .-----------------'                       |   |  | 2001:db8:2::2/64  |
+# |    |/                                          |   |  | 2001:db8:4::2/64  |
+# |    + $h1                                       |   |  |                   |
+# +----|-------------------------------------------+   +--|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|-------------------------------+                  + $swp2             |
+# | |  + $swp1                         |                    192.0.2.129/28    |
+# | |    vid 555 777                   |                    192.0.2.145/28    |
+# | |                                  |                    2001:db8:2::1/64  |
+# | |  + BR1 (802.1q)                  |                    2001:db8:4::1/64  |
+# | |    vid 555 pvid untagged         |                                      |
+# | |    192.0.2.2/28                  |                                      |
+# | |    192.0.2.18/28                 |                                      |
+# | |    2001:db8:1::2/64              |                                      |
+# | |    2001:db8:3::2/64              |                                      |
+# | +----------------------------------+                                      |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	vlan
+	config_777
+	ping_ipv4_fails
+	ping_ipv6_fails
+	ping_ipv4_777
+	ping_ipv6_777
+	config_555
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+
+	vlan_create $h1 555 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+
+	vlan_create $h1 777 v$h1 192.0.2.17/28 2001:db8:3::1/64
+	ip -4 route add 192.0.2.144/28 vrf v$h1 nexthop via 192.0.2.18
+	ip -6 route add 2001:db8:4::/64 vrf v$h1 nexthop via 2001:db8:3::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:4::/64 vrf v$h1
+	ip -4 route del 192.0.2.144/28 vrf v$h1
+	vlan_destroy $h1 777
+
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.128/28 vrf v$h1
+	vlan_destroy $h1 555
+
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64 \
+			   192.0.2.146/28 2001:db8:4::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+	ip -4 route add 192.0.2.16/28 vrf v$h2 nexthop via 192.0.2.145
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+	ip -6 route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:4::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:3::/64 vrf v$h2
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.16/28 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	simple_if_fini $h2 192.0.2.146/28 2001:db8:4::2/64 \
+			   192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	bridge vlan add dev br1 vid 555 self pvid untagged
+	bridge vlan add dev $swp1 vid 555
+	bridge vlan add dev $swp1 vid 777
+
+	__addr_add_del br1 add 192.0.2.2/28 2001:db8:1::2/64
+	__addr_add_del br1 add 192.0.2.18/28 2001:db8:3::2/64
+
+	ip link set dev $swp2 up
+	__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+	__addr_add_del $swp2 add 192.0.2.145/28 2001:db8:4::1/64
+}
+
+router_destroy()
+{
+	__addr_add_del $swp2 del 192.0.2.145/28 2001:db8:4::1/64
+	__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+	ip link set dev $swp2 down
+
+	__addr_add_del br1 del 192.0.2.18/28 2001:db8:3::2/64
+	__addr_add_del br1 del 192.0.2.2/28 2001:db8:1::2/64
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+config_555()
+{
+	log_info "Configure VLAN 555 as PVID"
+
+	bridge vlan add dev br1 vid 555 self pvid untagged
+	bridge vlan del dev br1 vid 777 self
+	sleep 2
+}
+
+config_777()
+{
+	log_info "Configure VLAN 777 as PVID"
+
+	bridge vlan add dev br1 vid 777 self pvid untagged
+	bridge vlan del dev br1 vid 555 self
+	sleep 2
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+vlan()
+{
+	RET=0
+
+	bridge vlan add dev br1 vid 333 self
+	check_err $? "Can't add a non-PVID VLAN"
+	bridge vlan del dev br1 vid 333 self
+	check_err $? "Can't remove a non-PVID VLAN"
+
+	log_test "vlan"
+}
+
+ping_ipv4()
+{
+	ping_test $h1.555 192.0.2.130
+}
+
+ping_ipv6()
+{
+	ping6_test $h1.555 2001:db8:2::2
+}
+
+ping_ipv4_fails()
+{
+	ping_test_fails $h1.555 192.0.2.130 ": via 555"
+}
+
+ping_ipv6_fails()
+{
+	ping6_test_fails $h1.555 2001:db8:2::2 ": via 555"
+}
+
+ping_ipv4_777()
+{
+	ping_test $h1.777 192.0.2.146 ": via 777"
+}
+
+ping_ipv6_777()
+{
+	ping6_test $h1.777 2001:db8:4::2 ": via 777"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper.sh b/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper.sh
new file mode 100755
index 000000000000..215309ea1c8c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper.sh
@@ -0,0 +1,169 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +------------------------+                           +----------------------+
+# | H1 (vrf)               |                           |             H2 (vrf) |
+# |    + $h1.555           |                           |  + $h2.777           |
+# |    | 192.0.2.1/28      |                           |  | 192.0.2.18/28     |
+# |    | 2001:db8:1::1/64  |                           |  | 2001:db8:2::2/64  |
+# |    |                   |                           |  |                   |
+# |    + $h1               |                           |  + $h2               |
+# +----|-------------------+                           +--|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1q)             + $swp2           | |
+# | |                                                                       | |
+# | +------+------------------------------------------+---------------------+ |
+# |        |                                          |                       |
+# |        + br1.555                                  + br1.777               |
+# |          192.0.2.2/28                               192.0.2.17/28         |
+# |          2001:db8:1::2/64                           2001:db8:2::1/64      |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	respin_config
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 555 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.16/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.16/28 vrf v$h1
+	vlan_destroy $h1 555
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	vlan_create $h2 777 v$h2 192.0.2.18/28 2001:db8:2::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.17
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	vlan_destroy $h2 777
+	simple_if_fini $h2
+}
+
+router_create()
+{
+	ip link add name br1 address $(mac_get $swp1) \
+		type bridge vlan_filtering 1
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp2 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	bridge vlan add dev br1 vid 555 self
+	bridge vlan add dev br1 vid 777 self
+	bridge vlan add dev $swp1 vid 555
+	bridge vlan add dev $swp2 vid 777
+
+	vlan_create br1 555 "" 192.0.2.2/28 2001:db8:1::2/64
+	vlan_create br1 777 "" 192.0.2.17/28 2001:db8:2::1/64
+}
+
+router_destroy()
+{
+	vlan_destroy br1 777
+	vlan_destroy br1 555
+
+	bridge vlan del dev $swp2 vid 777
+	bridge vlan del dev $swp1 vid 555
+	bridge vlan del dev br1 vid 777 self
+	bridge vlan del dev br1 vid 555 self
+
+	ip link set dev $swp2 down nomaster
+	ip link set dev $swp1 down nomaster
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.18
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+respin_config()
+{
+	log_info "Remaster bridge slave"
+
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 nomaster
+
+	sleep 2
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp2 master br1
+
+	bridge vlan add dev $swp1 vid 555
+	bridge vlan add dev $swp2 vid 777
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper_pvid.sh b/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper_pvid.sh
new file mode 100755
index 000000000000..138558452402
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_bridge_vlan_upper_pvid.sh
@@ -0,0 +1,171 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +----------------------------+
+# |                   H1 (vrf) |
+# |   + $h1.10                 |                      +----------------------+
+# |   | 192.0.2.1/28           |                      |             H2 (vrf) |
+# |   | 2001:db8:1::1/64       |                      |  + $h2               |
+# |   |                        |                      |  | 192.0.2.130/28    |
+# |   + $h1                    |                      |  | 2001:db8:2::2/64  |
+# +---|------------------------+                      +--|-------------------+
+#     |                                                  |
+# +---|--------------------------------------------------|-------------------+
+# |   |                            router (main VRF)     |                   |
+# | +-|--------------------------+                       + $swp2             |
+# | | + $swp1      BR1 (802.1q)  |                         192.0.2.129/28    |
+# | +-----+----------------------+                         2001:db8:2::1/64  |
+# |       |                                                                  |
+# |       + br1.10                                                           |
+# |         192.0.2.2/28                                                     |
+# |         2001:db8:1::2/64                                                 |
+# +--------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	pvid_set_unset
+	ping_ipv4
+	ping_ipv6
+	pvid_set_move
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	vlan_create $h1 10 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.128/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:2::/64 vrf v$h1
+	ip -4 route del 192.0.2.128/28 vrf v$h1
+	vlan_destroy $h1 10
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.130/28 2001:db8:2::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.129
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2
+	ip -4 route del 192.0.2.0/28 vrf v$h2
+	simple_if_fini $h2 192.0.2.130/28 2001:db8:2::2/64
+}
+
+router_create()
+{
+	ip link add name br1 address $(mac_get $swp1) \
+		type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br1 up
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 up
+	__addr_add_del $swp2 add 192.0.2.129/28 2001:db8:2::1/64
+
+	bridge vlan add dev br1 vid 10 self
+	bridge vlan add dev $swp1 vid 10
+	vlan_create br1 10 "" 192.0.2.2/28 2001:db8:1::2/64
+}
+
+router_destroy()
+{
+	vlan_destroy br1 10
+	bridge vlan del dev $swp1 vid 10
+	bridge vlan del dev br1 vid 10 self
+
+	__addr_add_del $swp2 del 192.0.2.129/28 2001:db8:2::1/64
+	ip link set dev $swp2 down
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+pvid_set_unset()
+{
+	log_info "Set and unset PVID on VLAN 10"
+
+	bridge vlan add dev br1 vid 10 pvid self
+	sleep 1
+	bridge vlan add dev br1 vid 10 self
+}
+
+pvid_set_move()
+{
+	log_info "Set PVID on VLAN 10, then move it to VLAN 20"
+
+	bridge vlan add dev br1 vid 10 pvid self
+	sleep 1
+	bridge vlan add dev br1 vid 20 pvid self
+}
+
+shuffle_vlan()
+{
+	log_info ""
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.130
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_broadcast.sh b/tools/testing/selftests/net/forwarding/router_broadcast.sh
new file mode 100755
index 000000000000..4eac0a06f451
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_broadcast.sh
@@ -0,0 +1,237 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4"
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 198.51.200.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+}
+
+h1_destroy()
+{
+	ip route del 198.51.200.0/24 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 198.51.200.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+}
+
+h2_destroy()
+{
+	ip route del 198.51.200.0/24 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+h3_create()
+{
+	vrf_create "vrf-h3"
+	ip link set dev $h3 master vrf-h3
+
+	ip link set dev vrf-h3 up
+	ip link set dev $h3 up
+
+	ip address add 198.51.200.2/24 dev $h3
+
+	ip route add 192.0.2.0/24 vrf vrf-h3 nexthop via 198.51.200.1
+	ip route add 198.51.100.0/24 vrf vrf-h3 nexthop via 198.51.200.1
+}
+
+h3_destroy()
+{
+	ip route del 198.51.100.0/24 vrf vrf-h3
+	ip route del 192.0.2.0/24 vrf vrf-h3
+
+	ip address del 198.51.200.2/24 dev $h3
+
+	ip link set dev $h3 down
+	vrf_destroy "vrf-h3"
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+	ip link set dev $rp3 up
+
+	ip address add 192.0.2.1/24 dev $rp1
+
+	ip address add 198.51.100.1/24 dev $rp2
+	ip address add 198.51.200.1/24 dev $rp3
+}
+
+router_destroy()
+{
+	ip address del 198.51.200.1/24 dev $rp3
+	ip address del 198.51.100.1/24 dev $rp2
+
+	ip address del 192.0.2.1/24 dev $rp1
+
+	ip link set dev $rp3 down
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+bc_forwarding_disable()
+{
+	sysctl_set net.ipv4.conf.all.bc_forwarding 0
+	sysctl_set net.ipv4.conf.$rp1.bc_forwarding 0
+	sysctl_set net.ipv4.conf.$rp2.bc_forwarding 0
+}
+
+bc_forwarding_enable()
+{
+	sysctl_set net.ipv4.conf.all.bc_forwarding 1
+	sysctl_set net.ipv4.conf.$rp1.bc_forwarding 1
+	sysctl_set net.ipv4.conf.$rp2.bc_forwarding 1
+}
+
+bc_forwarding_restore()
+{
+	sysctl_restore net.ipv4.conf.$rp2.bc_forwarding
+	sysctl_restore net.ipv4.conf.$rp1.bc_forwarding
+	sysctl_restore net.ipv4.conf.all.bc_forwarding
+}
+
+ping_test_from()
+{
+	local oif=$1
+	local dip=$2
+	local from=$3
+	local fail=${4:-0}
+
+	RET=0
+
+	log_info "ping $dip, expected reply from $from"
+	ip vrf exec $(master_name_get $oif) \
+		$PING -I $oif $dip -c 10 -i 0.1 -w $PING_TIMEOUT -b 2>&1 \
+		| grep "bytes from $from" > /dev/null
+	check_err_fail $fail $?
+}
+
+ping_ipv4()
+{
+	sysctl_set net.ipv4.icmp_echo_ignore_broadcasts 0
+
+	bc_forwarding_disable
+	log_info "bc_forwarding disabled on r1 =>"
+	ping_test_from $h1 198.51.100.255 192.0.2.1
+	log_test "h1 -> net2: reply from r1 (not forwarding)"
+	ping_test_from $h1 198.51.200.255 192.0.2.1
+	log_test "h1 -> net3: reply from r1 (not forwarding)"
+	ping_test_from $h1 192.0.2.255 192.0.2.1
+	log_test "h1 -> net1: reply from r1 (not dropping)"
+	ping_test_from $h1 255.255.255.255 192.0.2.1
+	log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
+
+	ping_test_from $h2 192.0.2.255 198.51.100.1
+	log_test "h2 -> net1: reply from r1 (not forwarding)"
+	ping_test_from $h2 198.51.200.255 198.51.100.1
+	log_test "h2 -> net3: reply from r1 (not forwarding)"
+	ping_test_from $h2 198.51.100.255 198.51.100.1
+	log_test "h2 -> net2: reply from r1 (not dropping)"
+	ping_test_from $h2 255.255.255.255 198.51.100.1
+	log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
+	bc_forwarding_restore
+
+	bc_forwarding_enable
+	log_info "bc_forwarding enabled on r1 =>"
+	ping_test_from $h1 198.51.100.255 198.51.100.2
+	log_test "h1 -> net2: reply from h2 (forwarding)"
+	ping_test_from $h1 198.51.200.255 198.51.200.2
+	log_test "h1 -> net3: reply from h3 (forwarding)"
+	ping_test_from $h1 192.0.2.255 192.0.2.1 1
+	log_test "h1 -> net1: no reply (dropping)"
+	ping_test_from $h1 255.255.255.255 192.0.2.1
+	log_test "h1 -> 255.255.255.255: reply from r1 (not forwarding)"
+
+	ping_test_from $h2 192.0.2.255 192.0.2.2
+	log_test "h2 -> net1: reply from h1 (forwarding)"
+	ping_test_from $h2 198.51.200.255 198.51.200.2
+	log_test "h2 -> net3: reply from h3 (forwarding)"
+	ping_test_from $h2 198.51.100.255 198.51.100.1 1
+	log_test "h2 -> net2: no reply (dropping)"
+	ping_test_from $h2 255.255.255.255 198.51.100.1
+	log_test "h2 -> 255.255.255.255: reply from r1 (not forwarding)"
+	bc_forwarding_restore
+
+	sysctl_restore net.ipv4.icmp_echo_ignore_broadcasts
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh
new file mode 100755
index 000000000000..a7d8399c8d4f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_nh.sh
@@ -0,0 +1,464 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-------------------------+
+# |  H1                     |
+# |               $h1 +     |
+# |      192.0.2.2/24 |     |
+# |  2001:db8:1::2/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|----------------------+
+# |                   |                   R1 |
+# |             $rp11 +                      |
+# |      192.0.2.1/24                        |
+# |  2001:db8:1::1/64                        |
+# |                                          |
+# |  + $rp12              + $rp13            |
+# |  | 169.254.2.12/24    | 169.254.3.13/24  |
+# |  | fe80:2::12/64      | fe80:3::13/64    |
+# +--|--------------------|------------------+
+#    |                    |
+# +--|--------------------|------------------+
+# |  + $rp22              + $rp23            |
+# |    169.254.2.22/24      169.254.3.23/24  |
+# |    fe80:2::22/64        fe80:3::23/64    |
+# |                                          |
+# |             $rp21 +                      |
+# |   198.51.100.1/24 |                      |
+# |  2001:db8:2::1/64 |                   R2 |
+# +-------------------|----------------------+
+#                     |
+# +-------------------|-----+
+# |                   |     |
+# |               $h2 +     |
+# |   198.51.100.2/24       |
+# |  2001:db8:2::2/64    H2 |
+# +-------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	multipath_test
+	multipath16_test
+	ping_ipv4_blackhole
+	ping_ipv6_blackhole
+	nh_stats_test_v4
+	nh_stats_test_v6
+"
+NUM_NETIFS=8
+source lib.sh
+source router_mpath_nh_lib.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+	ip address add 2001:db8:1::2/64 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 2001:db8:1::2/64 dev $h1
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+	ip address add 2001:db8:2::2/64 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 2001:db8:2::2/64 dev $h2
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router1_create()
+{
+	vrf_create "vrf-r1"
+	ip link set dev $rp11 master vrf-r1
+	ip link set dev $rp12 master vrf-r1
+	ip link set dev $rp13 master vrf-r1
+
+	ip link set dev vrf-r1 up
+	ip link set dev $rp11 up
+	ip link set dev $rp12 up
+	ip link set dev $rp13 up
+
+	ip address add 192.0.2.1/24 dev $rp11
+	ip address add 2001:db8:1::1/64 dev $rp11
+
+	ip address add 169.254.2.12/24 dev $rp12
+	ip address add fe80:2::12/64 dev $rp12
+
+	ip address add 169.254.3.13/24 dev $rp13
+	ip address add fe80:3::13/64 dev $rp13
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-r1
+	ip route del 198.51.100.0/24 vrf vrf-r1
+
+	ip address del fe80:3::13/64 dev $rp13
+	ip address del 169.254.3.13/24 dev $rp13
+
+	ip address del fe80:2::12/64 dev $rp12
+	ip address del 169.254.2.12/24 dev $rp12
+
+	ip address del 2001:db8:1::1/64 dev $rp11
+	ip address del 192.0.2.1/24 dev $rp11
+
+	ip nexthop del id 103
+	ip nexthop del id 101
+	ip nexthop del id 102
+	ip nexthop del id 106
+	ip nexthop del id 104
+	ip nexthop del id 105
+
+	ip link set dev $rp13 down
+	ip link set dev $rp12 down
+	ip link set dev $rp11 down
+
+	vrf_destroy "vrf-r1"
+}
+
+router2_create()
+{
+	vrf_create "vrf-r2"
+	ip link set dev $rp21 master vrf-r2
+	ip link set dev $rp22 master vrf-r2
+	ip link set dev $rp23 master vrf-r2
+
+	ip link set dev vrf-r2 up
+	ip link set dev $rp21 up
+	ip link set dev $rp22 up
+	ip link set dev $rp23 up
+
+	ip address add 198.51.100.1/24 dev $rp21
+	ip address add 2001:db8:2::1/64 dev $rp21
+
+	ip address add 169.254.2.22/24 dev $rp22
+	ip address add fe80:2::22/64 dev $rp22
+
+	ip address add 169.254.3.23/24 dev $rp23
+	ip address add fe80:3::23/64 dev $rp23
+}
+
+router2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-r2
+	ip route del 192.0.2.0/24 vrf vrf-r2
+
+	ip address del fe80:3::23/64 dev $rp23
+	ip address del 169.254.3.23/24 dev $rp23
+
+	ip address del fe80:2::22/64 dev $rp22
+	ip address del 169.254.2.22/24 dev $rp22
+
+	ip address del 2001:db8:2::1/64 dev $rp21
+	ip address del 198.51.100.1/24 dev $rp21
+
+	ip nexthop del id 201
+	ip nexthop del id 202
+	ip nexthop del id 204
+	ip nexthop del id 205
+
+	ip link set dev $rp23 down
+	ip link set dev $rp22 down
+	ip link set dev $rp21 down
+
+	vrf_destroy "vrf-r2"
+}
+
+routing_nh_obj()
+{
+	ip nexthop add id 101 via 169.254.2.22 dev $rp12
+	ip nexthop add id 102 via 169.254.3.23 dev $rp13
+	ip nexthop add id 103 group 101/102
+	ip route add 198.51.100.0/24 vrf vrf-r1 nhid 103
+
+	ip nexthop add id 104 via fe80:2::22 dev $rp12
+	ip nexthop add id 105 via fe80:3::23 dev $rp13
+	ip nexthop add id 106 group 104/105
+	ip route add 2001:db8:2::/64 vrf vrf-r1 nhid 106
+
+	ip nexthop add id 201 via 169.254.2.12 dev $rp22
+	ip nexthop add id 202 via 169.254.3.13 dev $rp23
+	ip nexthop add id 203 group 201/202
+	ip route add 192.0.2.0/24 vrf vrf-r2 nhid 203
+
+	ip nexthop add id 204 via fe80:2::12 dev $rp22
+	ip nexthop add id 205 via fe80:3::13 dev $rp23
+	ip nexthop add id 206 group 204/205
+	ip route add 2001:db8:1::/64 vrf vrf-r2 nhid 206
+}
+
+multipath4_test()
+{
+	local desc=$1; shift
+	local weight_rp12=$1; shift
+	local weight_rp13=$1; shift
+	local ports=${1-sp=1024,dp=0-32768}; shift
+
+	local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+	local packets_rp12 packets_rp13
+
+	# Transmit multiple flows from h1 to h2 and make sure they are
+	# distributed between both multipath links (rp12 and rp13)
+	# according to the configured weights.
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+	ip nexthop replace id 103 group 101,$weight_rp12/102,$weight_rp13
+
+	t0_rp12=$(link_stats_tx_packets_get $rp12)
+	t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+	ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
+		-d $MZ_DELAY -t udp "$ports"
+	sleep 1
+
+	t1_rp12=$(link_stats_tx_packets_get $rp12)
+	t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+	let "packets_rp12 = $t1_rp12 - $t0_rp12"
+	let "packets_rp13 = $t1_rp13 - $t0_rp13"
+	multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+	# Restore settings.
+	ip nexthop replace id 103 group 101/102
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+	local desc=$1; shift
+	local weight_rp12=$1; shift
+	local weight_rp13=$1; shift
+	local ports=${1-sp=1024,dp=0-32768}; shift
+
+	local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+	local packets_rp12 packets_rp13
+
+	# Transmit multiple flows from h1 to h2 and make sure they are
+	# distributed between both multipath links (rp12 and rp13)
+	# according to the configured weights.
+	sysctl_set net.ipv6.fib_multipath_hash_policy 1
+
+	ip nexthop replace id 106 group 104,$weight_rp12/105,$weight_rp13
+
+	t0_rp12=$(link_stats_tx_packets_get $rp12)
+	t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+	$MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "$ports"
+	sleep 1
+
+	t1_rp12=$(link_stats_tx_packets_get $rp12)
+	t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+	let "packets_rp12 = $t1_rp12 - $t0_rp12"
+	let "packets_rp13 = $t1_rp13 - $t0_rp13"
+	multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+	ip nexthop replace id 106 group 104/105
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+multipath_test()
+{
+	log_info "Running IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+
+	log_info "Running IPv4 multipath tests with IPv6 link-local nexthops"
+	ip nexthop replace id 101 via fe80:2::22 dev $rp12
+	ip nexthop replace id 102 via fe80:3::23 dev $rp13
+
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+
+	ip nexthop replace id 102 via 169.254.3.23 dev $rp13
+	ip nexthop replace id 101 via 169.254.2.22 dev $rp12
+
+	log_info "Running IPv6 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+multipath16_test()
+{
+	check_nhgw16 104 || return
+
+	log_info "Running 16-bit IPv4 multipath tests"
+	multipath4_test "65535:65535" 65535 65535
+	multipath4_test "128:512" 128 512
+	omit_on_slow \
+		multipath4_test "255:65535" 255 65535 sp=1024-1026,dp=0-65535
+
+	log_info "Running 16-bit IPv6 multipath tests"
+	multipath6_test "65535:65535" 65535 65535
+	multipath6_test "128:512" 128 512
+	omit_on_slow \
+		multipath6_test "255:65535" 255 65535 sp=1024-1026,dp=0-65535
+}
+
+ping_ipv4_blackhole()
+{
+	RET=0
+
+	ip nexthop add id 1001 blackhole
+	ip nexthop add id 1002 group 1001
+
+	ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1001
+	ping_do $h1 198.51.100.2
+	check_fail $? "ping did not fail when using a blackhole nexthop"
+
+	ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 1002
+	ping_do $h1 198.51.100.2
+	check_fail $? "ping did not fail when using a blackhole nexthop group"
+
+	ip route replace 198.51.100.0/24 vrf vrf-r1 nhid 103
+	ping_do $h1 198.51.100.2
+	check_err $? "ping failed with a valid nexthop"
+
+	log_test "IPv4 blackhole ping"
+
+	ip nexthop del id 1002
+	ip nexthop del id 1001
+}
+
+ping_ipv6_blackhole()
+{
+	RET=0
+
+	ip -6 nexthop add id 1001 blackhole
+	ip nexthop add id 1002 group 1001
+
+	ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1001
+	ping6_do $h1 2001:db8:2::2
+	check_fail $? "ping did not fail when using a blackhole nexthop"
+
+	ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 1002
+	ping6_do $h1 2001:db8:2::2
+	check_fail $? "ping did not fail when using a blackhole nexthop group"
+
+	ip route replace 2001:db8:2::/64 vrf vrf-r1 nhid 106
+	ping6_do $h1 2001:db8:2::2
+	check_err $? "ping failed with a valid nexthop"
+
+	log_test "IPv6 blackhole ping"
+
+	ip nexthop del id 1002
+	ip -6 nexthop del id 1001
+}
+
+nh_stats_test_v4()
+{
+	__nh_stats_test_v4 mpath
+}
+
+nh_stats_test_v6()
+{
+	__nh_stats_test_v6 mpath
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp11=${NETIFS[p2]}
+
+	rp12=${NETIFS[p3]}
+	rp22=${NETIFS[p4]}
+
+	rp13=${NETIFS[p5]}
+	rp23=${NETIFS[p6]}
+
+	rp21=${NETIFS[p7]}
+	h2=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+ip nexthop ls >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+	echo "Nexthop objects not supported; skipping tests"
+	exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+routing_nh_obj
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh
new file mode 100644
index 000000000000..507b2852dabe
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_nh_lib.sh
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: GPL-2.0
+
+nh_stats_do_test()
+{
+	local what=$1; shift
+	local nh1_id=$1; shift
+	local nh2_id=$1; shift
+	local group_id=$1; shift
+	local stats_get=$1; shift
+	local mz="$@"
+
+	local dp
+
+	RET=0
+
+	sleep 2
+	for ((dp=0; dp < 60000; dp += 10000)); do
+		local dd
+		local t0_rp12=$(link_stats_tx_packets_get $rp12)
+		local t0_rp13=$(link_stats_tx_packets_get $rp13)
+		local t0_nh1=$($stats_get $group_id $nh1_id)
+		local t0_nh2=$($stats_get $group_id $nh2_id)
+
+		ip vrf exec vrf-h1 \
+			$mz -q -p 64 -d 0 -t udp \
+				"sp=1024,dp=$((dp))-$((dp + 10000))"
+		sleep 2
+
+		local t1_rp12=$(link_stats_tx_packets_get $rp12)
+		local t1_rp13=$(link_stats_tx_packets_get $rp13)
+		local t1_nh1=$($stats_get $group_id $nh1_id)
+		local t1_nh2=$($stats_get $group_id $nh2_id)
+
+		local d_rp12=$((t1_rp12 - t0_rp12))
+		local d_rp13=$((t1_rp13 - t0_rp13))
+		local d_nh1=$((t1_nh1 - t0_nh1))
+		local d_nh2=$((t1_nh2 - t0_nh2))
+
+		dd=$(absval $((d_rp12 - d_nh1)))
+		((dd < 10))
+		check_err $? "Discrepancy between link and $stats_get: d_rp12=$d_rp12 d_nh1=$d_nh1"
+
+		dd=$(absval $((d_rp13 - d_nh2)))
+		((dd < 10))
+		check_err $? "Discrepancy between link and $stats_get: d_rp13=$d_rp13 d_nh2=$d_nh2"
+	done
+
+	log_test "NH stats test $what"
+}
+
+nh_stats_test_dispatch_swhw()
+{
+	local what=$1; shift
+	local nh1_id=$1; shift
+	local nh2_id=$1; shift
+	local group_id=$1; shift
+	local mz="$@"
+
+	nh_stats_do_test "$what" "$nh1_id" "$nh2_id" "$group_id" \
+			 nh_stats_get "${mz[@]}"
+
+	xfail_on_veth $rp11 \
+		nh_stats_do_test "HW $what" "$nh1_id" "$nh2_id" "$group_id" \
+				 nh_stats_get_hw "${mz[@]}"
+}
+
+nh_stats_test_dispatch()
+{
+	local nhgtype=$1; shift
+	local what=$1; shift
+	local nh1_id=$1; shift
+	local nh2_id=$1; shift
+	local group_id=$1; shift
+	local mz="$@"
+
+	local enabled
+
+	if ! ip nexthop help 2>&1 | grep -q hw_stats; then
+		log_test_skip "NH stats test: ip doesn't support HW stats"
+		return
+	fi
+
+	ip nexthop replace id $group_id group $nh1_id/$nh2_id \
+			   hw_stats on type $nhgtype
+	enabled=$(ip -s -j -d nexthop show id $group_id |
+		      jq '.[].hw_stats.enabled')
+	if [[ $enabled == true ]]; then
+		nh_stats_test_dispatch_swhw "$what" "$nh1_id" "$nh2_id" \
+					    "$group_id" "${mz[@]}"
+	elif [[ $enabled == false ]]; then
+		check_err 1 "HW stats still disabled after enabling"
+		log_test "NH stats test"
+	else
+		log_test_skip "NH stats test: ip doesn't report hw_stats info"
+	fi
+
+	ip nexthop replace id $group_id group $nh1_id/$nh2_id \
+			   hw_stats off type $nhgtype
+}
+
+__nh_stats_test_v4()
+{
+	local nhgtype=$1; shift
+
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+	nh_stats_test_dispatch $nhgtype "IPv4" 101 102 103 \
+			       $MZ $h1 -A 192.0.2.2 -B 198.51.100.2
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+__nh_stats_test_v6()
+{
+	local nhgtype=$1; shift
+
+	sysctl_set net.ipv6.fib_multipath_hash_policy 1
+	nh_stats_test_dispatch $nhgtype "IPv6" 104 105 106 \
+			       $MZ -6 $h1 -A 2001:db8:1::2 -B 2001:db8:2::2
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+check_nhgw16()
+{
+	local nhid=$1; shift
+
+	ip nexthop replace id 9999 group "$nhid,65535" &>/dev/null
+	if (( $? )); then
+		log_test_skip "16-bit multipath tests" \
+			      "iproute2 or the kernel do not support 16-bit next hop weights"
+		return 1
+	fi
+	ip nexthop del id 9999 ||:
+}
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh
new file mode 100755
index 000000000000..88ddae05b39d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_nh_res.sh
@@ -0,0 +1,490 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-------------------------+
+# |  H1                     |
+# |               $h1 +     |
+# |      192.0.2.2/24 |     |
+# |  2001:db8:1::2/64 |     |
+# +-------------------|-----+
+#                     |
+# +-------------------|----------------------+
+# |                   |                   R1 |
+# |             $rp11 +                      |
+# |      192.0.2.1/24                        |
+# |  2001:db8:1::1/64                        |
+# |                                          |
+# |  + $rp12              + $rp13            |
+# |  | 169.254.2.12/24    | 169.254.3.13/24  |
+# |  | fe80:2::12/64      | fe80:3::13/64    |
+# +--|--------------------|------------------+
+#    |                    |
+# +--|--------------------|------------------+
+# |  + $rp22              + $rp23            |
+# |    169.254.2.22/24      169.254.3.23/24  |
+# |    fe80:2::22/64        fe80:3::23/64    |
+# |                                          |
+# |             $rp21 +                      |
+# |   198.51.100.1/24 |                      |
+# |  2001:db8:2::1/64 |                   R2 |
+# +-------------------|----------------------+
+#                     |
+# +-------------------|-----+
+# |                   |     |
+# |               $h2 +     |
+# |   198.51.100.2/24       |
+# |  2001:db8:2::2/64    H2 |
+# +-------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	multipath_test
+	multipath16_test
+	nh_stats_test_v4
+	nh_stats_test_v6
+"
+NUM_NETIFS=8
+source lib.sh
+source router_mpath_nh_lib.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+	ip address add 2001:db8:1::2/64 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 2001:db8:1::2/64 dev $h1
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+	ip address add 2001:db8:2::2/64 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 2001:db8:2::2/64 dev $h2
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router1_create()
+{
+	vrf_create "vrf-r1"
+	ip link set dev $rp11 master vrf-r1
+	ip link set dev $rp12 master vrf-r1
+	ip link set dev $rp13 master vrf-r1
+
+	ip link set dev vrf-r1 up
+	ip link set dev $rp11 up
+	ip link set dev $rp12 up
+	ip link set dev $rp13 up
+
+	ip address add 192.0.2.1/24 dev $rp11
+	ip address add 2001:db8:1::1/64 dev $rp11
+
+	ip address add 169.254.2.12/24 dev $rp12
+	ip address add fe80:2::12/64 dev $rp12
+
+	ip address add 169.254.3.13/24 dev $rp13
+	ip address add fe80:3::13/64 dev $rp13
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-r1
+	ip route del 198.51.100.0/24 vrf vrf-r1
+
+	ip address del fe80:3::13/64 dev $rp13
+	ip address del 169.254.3.13/24 dev $rp13
+
+	ip address del fe80:2::12/64 dev $rp12
+	ip address del 169.254.2.12/24 dev $rp12
+
+	ip address del 2001:db8:1::1/64 dev $rp11
+	ip address del 192.0.2.1/24 dev $rp11
+
+	ip nexthop del id 103
+	ip nexthop del id 101
+	ip nexthop del id 102
+	ip nexthop del id 106
+	ip nexthop del id 104
+	ip nexthop del id 105
+
+	ip link set dev $rp13 down
+	ip link set dev $rp12 down
+	ip link set dev $rp11 down
+
+	vrf_destroy "vrf-r1"
+}
+
+router2_create()
+{
+	vrf_create "vrf-r2"
+	ip link set dev $rp21 master vrf-r2
+	ip link set dev $rp22 master vrf-r2
+	ip link set dev $rp23 master vrf-r2
+
+	ip link set dev vrf-r2 up
+	ip link set dev $rp21 up
+	ip link set dev $rp22 up
+	ip link set dev $rp23 up
+
+	ip address add 198.51.100.1/24 dev $rp21
+	ip address add 2001:db8:2::1/64 dev $rp21
+
+	ip address add 169.254.2.22/24 dev $rp22
+	ip address add fe80:2::22/64 dev $rp22
+
+	ip address add 169.254.3.23/24 dev $rp23
+	ip address add fe80:3::23/64 dev $rp23
+}
+
+router2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-r2
+	ip route del 192.0.2.0/24 vrf vrf-r2
+
+	ip address del fe80:3::23/64 dev $rp23
+	ip address del 169.254.3.23/24 dev $rp23
+
+	ip address del fe80:2::22/64 dev $rp22
+	ip address del 169.254.2.22/24 dev $rp22
+
+	ip address del 2001:db8:2::1/64 dev $rp21
+	ip address del 198.51.100.1/24 dev $rp21
+
+	ip nexthop del id 201
+	ip nexthop del id 202
+	ip nexthop del id 204
+	ip nexthop del id 205
+
+	ip link set dev $rp23 down
+	ip link set dev $rp22 down
+	ip link set dev $rp21 down
+
+	vrf_destroy "vrf-r2"
+}
+
+routing_nh_obj()
+{
+	ip nexthop add id 101 via 169.254.2.22 dev $rp12
+	ip nexthop add id 102 via 169.254.3.23 dev $rp13
+	ip nexthop add id 103 group 101/102 type resilient buckets 512 \
+		idle_timer 0
+	ip route add 198.51.100.0/24 vrf vrf-r1 nhid 103
+
+	ip nexthop add id 104 via fe80:2::22 dev $rp12
+	ip nexthop add id 105 via fe80:3::23 dev $rp13
+	ip nexthop add id 106 group 104/105 type resilient buckets 512 \
+		idle_timer 0
+	ip route add 2001:db8:2::/64 vrf vrf-r1 nhid 106
+
+	ip nexthop add id 201 via 169.254.2.12 dev $rp22
+	ip nexthop add id 202 via 169.254.3.13 dev $rp23
+	ip nexthop add id 203 group 201/202 type resilient buckets 512 \
+		idle_timer 0
+	ip route add 192.0.2.0/24 vrf vrf-r2 nhid 203
+
+	ip nexthop add id 204 via fe80:2::12 dev $rp22
+	ip nexthop add id 205 via fe80:3::13 dev $rp23
+	ip nexthop add id 206 group 204/205 type resilient buckets 512 \
+		idle_timer 0
+	ip route add 2001:db8:1::/64 vrf vrf-r2 nhid 206
+}
+
+multipath4_test()
+{
+	local desc=$1; shift
+	local weight_rp12=$1; shift
+	local weight_rp13=$1; shift
+	local ports=${1-sp=1024,dp=0-32768}; shift
+
+	local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+	local packets_rp12 packets_rp13
+
+	# Transmit multiple flows from h1 to h2 and make sure they are
+	# distributed between both multipath links (rp12 and rp13)
+	# according to the provided weights.
+	sysctl_set net.ipv4.fib_multipath_hash_policy 1
+
+	t0_rp12=$(link_stats_tx_packets_get $rp12)
+	t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+	ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
+		-d $MZ_DELAY -t udp "$ports"
+	sleep 1
+
+	t1_rp12=$(link_stats_tx_packets_get $rp12)
+	t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+	let "packets_rp12 = $t1_rp12 - $t0_rp12"
+	let "packets_rp13 = $t1_rp13 - $t0_rp13"
+	multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+	# Restore settings.
+	sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_l4_test()
+{
+	local desc=$1; shift
+	local weight_rp12=$1; shift
+	local weight_rp13=$1; shift
+	local ports=${1-sp=1024,dp=0-32768}; shift
+
+	local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+	local packets_rp12 packets_rp13
+
+	# Transmit multiple flows from h1 to h2 and make sure they are
+	# distributed between both multipath links (rp12 and rp13)
+	# according to the provided weights.
+	sysctl_set net.ipv6.fib_multipath_hash_policy 1
+
+	t0_rp12=$(link_stats_tx_packets_get $rp12)
+	t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+	$MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+		-d $MZ_DELAY -t udp "$ports"
+	sleep 1
+
+	t1_rp12=$(link_stats_tx_packets_get $rp12)
+	t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+	let "packets_rp12 = $t1_rp12 - $t0_rp12"
+	let "packets_rp13 = $t1_rp13 - $t0_rp13"
+	multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+	sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+multipath_test()
+{
+	# Without an idle timer, weight replacement should happen immediately.
+	log_info "Running multipath tests without an idle timer"
+	ip nexthop replace id 103 group 101/102 type resilient idle_timer 0
+	ip nexthop replace id 106 group 104/105 type resilient idle_timer 0
+
+	log_info "Running IPv4 multipath tests"
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+	multipath4_test "ECMP" 1 1
+	ip nexthop replace id 103 group 101,2/102,1 type resilient
+	multipath4_test "Weighted MP 2:1" 2 1
+	ip nexthop replace id 103 group 101,11/102,45 type resilient
+	multipath4_test "Weighted MP 11:45" 11 45
+
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+
+	log_info "Running IPv6 L4 hash multipath tests"
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+	multipath6_l4_test "ECMP" 1 1
+	ip nexthop replace id 106 group 104,2/105,1 type resilient
+	multipath6_l4_test "Weighted MP 2:1" 2 1
+	ip nexthop replace id 106 group 104,11/105,45 type resilient
+	multipath6_l4_test "Weighted MP 11:45" 11 45
+
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+
+	# With an idle timer, weight replacement should not happen, so the
+	# expected ratio should always be the initial one (1:1).
+	log_info "Running multipath tests with an idle timer of 120 seconds"
+	ip nexthop replace id 103 group 101/102 type resilient idle_timer 120
+	ip nexthop replace id 106 group 104/105 type resilient idle_timer 120
+
+	log_info "Running IPv4 multipath tests"
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+	multipath4_test "ECMP" 1 1
+	ip nexthop replace id 103 group 101,2/102,1 type resilient
+	multipath4_test "Weighted MP 2:1" 1 1
+	ip nexthop replace id 103 group 101,11/102,45 type resilient
+	multipath4_test "Weighted MP 11:45" 1 1
+
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+
+	log_info "Running IPv6 L4 hash multipath tests"
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+	multipath6_l4_test "ECMP" 1 1
+	ip nexthop replace id 106 group 104,2/105,1 type resilient
+	multipath6_l4_test "Weighted MP 2:1" 1 1
+	ip nexthop replace id 106 group 104,11/105,45 type resilient
+	multipath6_l4_test "Weighted MP 11:45" 1 1
+
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+
+	# With a short idle timer and enough idle time, weight replacement
+	# should happen.
+	log_info "Running multipath tests with an idle timer of 5 seconds"
+	ip nexthop replace id 103 group 101/102 type resilient idle_timer 5
+	ip nexthop replace id 106 group 104/105 type resilient idle_timer 5
+
+	log_info "Running IPv4 multipath tests"
+	sleep 10
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+	multipath4_test "ECMP" 1 1
+	sleep 10
+	ip nexthop replace id 103 group 101,2/102,1 type resilient
+	multipath4_test "Weighted MP 2:1" 2 1
+	sleep 10
+	ip nexthop replace id 103 group 101,11/102,45 type resilient
+	multipath4_test "Weighted MP 11:45" 11 45
+
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+
+	log_info "Running IPv6 L4 hash multipath tests"
+	sleep 10
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+	multipath6_l4_test "ECMP" 1 1
+	sleep 10
+	ip nexthop replace id 106 group 104,2/105,1 type resilient
+	multipath6_l4_test "Weighted MP 2:1" 2 1
+	sleep 10
+	ip nexthop replace id 106 group 104,11/105,45 type resilient
+	multipath6_l4_test "Weighted MP 11:45" 11 45
+
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+}
+
+multipath16_test()
+{
+	check_nhgw16 104 || return
+
+	log_info "Running 16-bit IPv4 multipath tests"
+	ip nexthop replace id 103 group 101/102 type resilient idle_timer 0
+
+	ip nexthop replace id 103 group 101,65535/102,65535 type resilient
+	multipath4_test "65535:65535" 65535 65535
+
+	ip nexthop replace id 103 group 101,128/102,512 type resilient
+	multipath4_test "128:512" 128 512
+
+	ip nexthop replace id 103 group 101,255/102,65535 type resilient
+	omit_on_slow \
+		multipath4_test "255:65535" 255 65535 sp=1024-1026,dp=0-65535
+
+	ip nexthop replace id 103 group 101,1/102,1 type resilient
+
+	log_info "Running 16-bit IPv6 L4 hash multipath tests"
+	ip nexthop replace id 106 group 104/105 type resilient idle_timer 0
+
+	ip nexthop replace id 106 group 104,65535/105,65535 type resilient
+	multipath6_l4_test "65535:65535" 65535 65535
+
+	ip nexthop replace id 106 group 104,128/105,512 type resilient
+	multipath6_l4_test "128:512" 128 512
+
+	ip nexthop replace id 106 group 104,255/105,65535 type resilient
+	omit_on_slow \
+		multipath6_l4_test "255:65535" 255 65535 sp=1024-1026,dp=0-65535
+
+	ip nexthop replace id 106 group 104,1/105,1 type resilient
+}
+
+nh_stats_test_v4()
+{
+	__nh_stats_test_v4 resilient
+}
+
+nh_stats_test_v6()
+{
+	__nh_stats_test_v6 resilient
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp11=${NETIFS[p2]}
+
+	rp12=${NETIFS[p3]}
+	rp22=${NETIFS[p4]}
+
+	rp13=${NETIFS[p5]}
+	rp23=${NETIFS[p6]}
+
+	rp21=${NETIFS[p7]}
+	h2=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+ip nexthop ls >/dev/null 2>&1
+if [ $? -ne 0 ]; then
+	echo "Nexthop objects not supported; skipping tests"
+	exit $ksft_skip
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+routing_nh_obj
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_mpath_seed.sh b/tools/testing/selftests/net/forwarding/router_mpath_seed.sh
new file mode 100755
index 000000000000..314cb906c1eb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_mpath_seed.sh
@@ -0,0 +1,333 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-------------------------+  +-------------------------+
+# |  H1                     |  |                      H2 |
+# |               $h1 +     |  | + $h2                   |
+# |      192.0.2.1/28 |     |  | | 192.0.2.34/28         |
+# |  2001:db8:1::1/64 |     |  | | 2001:db8:3::2/64      |
+# +-------------------|-----+  +-|-----------------------+
+#                     |          |
+# +-------------------|-----+  +-|-----------------------+
+# |  R1               |     |  | |                    R2 |
+# |             $rp11 +     |  | + $rp21                 |
+# |      192.0.2.2/28       |  |   192.0.2.33/28         |
+# |  2001:db8:1::2/64       |  |   2001:db8:3::1/64      |
+# |                         |  |                         |
+# |             $rp12 +     |  | + $rp22                 |
+# |     192.0.2.17/28 |     |  | | 192.0.2.18..27/28     |
+# | 2001:db8:2::17/64 |     |  | | 2001:db8:2::18..27/64 |
+# +-------------------|-----+  +-|-----------------------+
+#                     |          |
+#                     `----------'
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+	test_mpath_seed_stability_ipv4
+	test_mpath_seed_stability_ipv6
+	test_mpath_seed_get
+	test_mpath_seed_ipv4
+	test_mpath_seed_ipv6
+"
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	ip -4 route add 192.0.2.32/28 vrf v$h1 nexthop via 192.0.2.2
+	ip -6 route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::2
+}
+
+h1_destroy()
+{
+	ip -6 route del 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::2
+	ip -4 route del 192.0.2.32/28 vrf v$h1 nexthop via 192.0.2.2
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.34/28 2001:db8:3::2/64
+	ip -4 route add 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.33
+	ip -6 route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:3::1
+}
+
+h2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:3::1
+	ip -4 route del 192.0.2.0/28 vrf v$h2 nexthop via 192.0.2.33
+	simple_if_fini $h2 192.0.2.34/28 2001:db8:3::2/64
+}
+
+router1_create()
+{
+	simple_if_init $rp11 192.0.2.2/28 2001:db8:1::2/64
+	__simple_if_init $rp12 v$rp11 192.0.2.17/28 2001:db8:2::17/64
+}
+
+router1_destroy()
+{
+	__simple_if_fini $rp12 192.0.2.17/28 2001:db8:2::17/64
+	simple_if_fini $rp11 192.0.2.2/28 2001:db8:1::2/64
+}
+
+router2_create()
+{
+	simple_if_init $rp21 192.0.2.33/28 2001:db8:3::1/64
+	__simple_if_init $rp22 v$rp21 192.0.2.18/28 2001:db8:2::18/64
+	ip -4 route add 192.0.2.0/28 vrf v$rp21 nexthop via 192.0.2.17
+	ip -6 route add 2001:db8:1::/64 vrf v$rp21 nexthop via 2001:db8:2::17
+}
+
+router2_destroy()
+{
+	ip -6 route del 2001:db8:1::/64 vrf v$rp21 nexthop via 2001:db8:2::17
+	ip -4 route del 192.0.2.0/28 vrf v$rp21 nexthop via 192.0.2.17
+	__simple_if_fini $rp22 192.0.2.18/28 2001:db8:2::18/64
+	simple_if_fini $rp21 192.0.2.33/28 2001:db8:3::1/64
+}
+
+nexthops_create()
+{
+	local i
+	for i in $(seq 10); do
+		ip nexthop add id $((1000 + i)) via 192.0.2.18 dev $rp12
+		ip nexthop add id $((2000 + i)) via 2001:db8:2::18 dev $rp12
+	done
+
+	ip nexthop add id 1000 group $(seq -s / 1001 1010) hw_stats on
+	ip nexthop add id 2000 group $(seq -s / 2001 2010) hw_stats on
+	ip -4 route add 192.0.2.32/28 vrf v$rp11 nhid 1000
+	ip -6 route add 2001:db8:3::/64 vrf v$rp11 nhid 2000
+}
+
+nexthops_destroy()
+{
+	local i
+
+	ip -6 route del 2001:db8:3::/64 vrf v$rp11 nhid 2000
+	ip -4 route del 192.0.2.32/28 vrf v$rp11 nhid 1000
+	ip nexthop del id 2000
+	ip nexthop del id 1000
+
+	for i in $(seq 10 -1 1); do
+		ip nexthop del id $((2000 + i))
+		ip nexthop del id $((1000 + i))
+	done
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp11=${NETIFS[p2]}
+
+	rp12=${NETIFS[p3]}
+	rp22=${NETIFS[p4]}
+
+	rp21=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	sysctl_save net.ipv4.fib_multipath_hash_seed
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	nexthops_destroy
+	router2_destroy
+	router1_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	sysctl_restore net.ipv4.fib_multipath_hash_seed
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.34
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:3::2
+}
+
+test_mpath_seed_get()
+{
+	RET=0
+
+	local i
+	for ((i = 0; i < 100; i++)); do
+		local seed_w=$((999331 * i))
+		sysctl -qw net.ipv4.fib_multipath_hash_seed=$seed_w
+		local seed_r=$(sysctl -n net.ipv4.fib_multipath_hash_seed)
+		((seed_r == seed_w))
+		check_err $? "mpath seed written as $seed_w, but read as $seed_r"
+	done
+
+	log_test "mpath seed set/get"
+}
+
+nh_stats_snapshot()
+{
+	local group_id=$1; shift
+
+	ip -j -s -s nexthop show id $group_id |
+	    jq -c '[.[].group_stats | sort_by(.id) | .[].packets]'
+}
+
+get_active_nh()
+{
+	local s0=$1; shift
+	local s1=$1; shift
+
+	jq -n --argjson s0 "$s0" --argjson s1 "$s1" -f /dev/stdin <<-"EOF"
+		[range($s0 | length)] |
+		map($s1[.] - $s0[.]) |
+		map(if . > 8 then 1 else 0 end) |
+		index(1)
+	EOF
+}
+
+probe_nh()
+{
+	local group_id=$1; shift
+	local -a mz=("$@")
+
+	local s0=$(nh_stats_snapshot $group_id)
+	"${mz[@]}"
+	local s1=$(nh_stats_snapshot $group_id)
+
+	get_active_nh "$s0" "$s1"
+}
+
+probe_seed()
+{
+	local group_id=$1; shift
+	local seed=$1; shift
+	local -a mz=("$@")
+
+	sysctl -qw net.ipv4.fib_multipath_hash_seed=$seed
+	probe_nh "$group_id" "${mz[@]}"
+}
+
+test_mpath_seed()
+{
+	local group_id=$1; shift
+	local what=$1; shift
+	local -a mz=("$@")
+	local ii
+
+	RET=0
+
+	local -a tally=(0 0 0 0 0 0 0 0 0 0)
+	for ((ii = 0; ii < 100; ii++)); do
+		local act=$(probe_seed $group_id $((999331 * ii)) "${mz[@]}")
+		((tally[act]++))
+	done
+
+	local tally_str="${tally[@]}"
+	for ((ii = 0; ii < ${#tally[@]}; ii++)); do
+		((tally[ii] > 0))
+		check_err $? "NH #$ii not hit, tally='$tally_str'"
+	done
+
+	log_test "mpath seed $what"
+	sysctl -qw net.ipv4.fib_multipath_hash_seed=0
+}
+
+test_mpath_seed_ipv4()
+{
+	test_mpath_seed 1000 IPv4 \
+		$MZ $h1 -A 192.0.2.1 -B 192.0.2.34 -q \
+			-p 64 -d 0 -c 10 -t udp
+}
+
+test_mpath_seed_ipv6()
+{
+	test_mpath_seed 2000 IPv6 \
+		$MZ -6 $h1 -A 2001:db8:1::1 -B 2001:db8:3::2 -q \
+			-p 64 -d 0 -c 10 -t udp
+}
+
+check_mpath_seed_stability()
+{
+	local seed=$1; shift
+	local act_0=$1; shift
+	local act_1=$1; shift
+
+	((act_0 == act_1))
+	check_err $? "seed $seed: active NH moved from $act_0 to $act_1 after seed change"
+}
+
+test_mpath_seed_stability()
+{
+	local group_id=$1; shift
+	local what=$1; shift
+	local -a mz=("$@")
+
+	RET=0
+
+	local seed_0=0
+	local seed_1=3221338814
+	local seed_2=3735928559
+
+	# Initial active NH before touching the seed at all.
+	local act_ini=$(probe_nh $group_id "${mz[@]}")
+
+	local act_0_0=$(probe_seed $group_id $seed_0 "${mz[@]}")
+	local act_1_0=$(probe_seed $group_id $seed_1 "${mz[@]}")
+	local act_2_0=$(probe_seed $group_id $seed_2 "${mz[@]}")
+
+	local act_0_1=$(probe_seed $group_id $seed_0 "${mz[@]}")
+	local act_1_1=$(probe_seed $group_id $seed_1 "${mz[@]}")
+	local act_2_1=$(probe_seed $group_id $seed_2 "${mz[@]}")
+
+	check_mpath_seed_stability initial $act_ini $act_0_0
+	check_mpath_seed_stability $seed_0 $act_0_0 $act_0_1
+	check_mpath_seed_stability $seed_1 $act_1_0 $act_1_1
+	check_mpath_seed_stability $seed_2 $act_2_0 $act_2_1
+
+	log_test "mpath seed stability $what"
+	sysctl -qw net.ipv4.fib_multipath_hash_seed=0
+}
+
+test_mpath_seed_stability_ipv4()
+{
+	test_mpath_seed_stability 1000 IPv4 \
+		$MZ $h1 -A 192.0.2.1 -B 192.0.2.34 -q \
+			-p 64 -d 0 -c 10 -t udp
+}
+
+test_mpath_seed_stability_ipv6()
+{
+	test_mpath_seed_stability 2000 IPv6 \
+		$MZ -6 $h1 -A 2001:db8:1::1 -B 2001:db8:3::2 -q \
+			-p 64 -d 0 -c 10 -t udp
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+nexthops_create
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_multicast.sh b/tools/testing/selftests/net/forwarding/router_multicast.sh
new file mode 100755
index 000000000000..83e52abdbc2e
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_multicast.sh
@@ -0,0 +1,483 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +------------------+
+# | H1 (v$h1)        |
+# | 2001:db8:1::2/64 |
+# | 198.51.100.2/28  |
+# |         $h1 +    |
+# +-------------|----+
+#               |
+# +-------------|-------------------------------+
+# | SW1         |                               |
+# |        $rp1 +                               |
+# | 198.51.100.1/28                             |
+# | 2001:db8:1::1/64                            |
+# |                                             |
+# | 2001:db8:2::1/64           2001:db8:3::1/64 |
+# | 198.51.100.17/28           198.51.100.33/28 |
+# |         $rp2 +                     $rp3 +   |
+# +--------------|--------------------------|---+
+#                |                          |
+#                |                          |
+# +--------------|---+       +--------------|---+
+# | H2 (v$h2)    |   |       | H3 (v$h3)    |   |
+# |          $h2 +   |       |          $h3 +   |
+# | 198.51.100.18/28 |       | 198.51.100.34/28 |
+# | 2001:db8:2::2/64 |       | 2001:db8:3::2/64 |
+# +------------------+       +------------------+
+#
+
+ALL_TESTS="mcast_v4 mcast_v6 rpf_v4 rpf_v6 unres_v4 unres_v6"
+NUM_NETIFS=6
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 198.51.100.2/28 2001:db8:1::2/64
+
+	ip route add 198.51.100.16/28 vrf v$h1 nexthop via 198.51.100.1
+	ip route add 198.51.100.32/28 vrf v$h1 nexthop via 198.51.100.1
+
+	ip route add 2001:db8:2::/64 vrf v$h1 nexthop via 2001:db8:1::1
+	ip route add 2001:db8:3::/64 vrf v$h1 nexthop via 2001:db8:1::1
+
+	tc qdisc add dev $h1 ingress
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 ingress
+
+	ip route del 2001:db8:3::/64 vrf v$h1
+	ip route del 2001:db8:2::/64 vrf v$h1
+
+	ip route del 198.51.100.32/28 vrf v$h1
+	ip route del 198.51.100.16/28 vrf v$h1
+
+	simple_if_fini $h1 198.51.100.2/28 2001:db8:1::2/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.18/28 2001:db8:2::2/64
+
+	ip route add 198.51.100.0/28 vrf v$h2 nexthop via 198.51.100.17
+	ip route add 198.51.100.32/28 vrf v$h2 nexthop via 198.51.100.17
+
+	ip route add 2001:db8:1::/64 vrf v$h2 nexthop via 2001:db8:2::1
+	ip route add 2001:db8:3::/64 vrf v$h2 nexthop via 2001:db8:2::1
+
+	tc qdisc add dev $h2 ingress
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 ingress
+
+	ip route del 2001:db8:3::/64 vrf v$h2
+	ip route del 2001:db8:1::/64 vrf v$h2
+
+	ip route del 198.51.100.32/28 vrf v$h2
+	ip route del 198.51.100.0/28 vrf v$h2
+
+	simple_if_fini $h2 198.51.100.18/28 2001:db8:2::2/64
+}
+
+h3_create()
+{
+	simple_if_init $h3 198.51.100.34/28 2001:db8:3::2/64
+
+	ip route add 198.51.100.0/28 vrf v$h3 nexthop via 198.51.100.33
+	ip route add 198.51.100.16/28 vrf v$h3 nexthop via 198.51.100.33
+
+	ip route add 2001:db8:1::/64 vrf v$h3 nexthop via 2001:db8:3::1
+	ip route add 2001:db8:2::/64 vrf v$h3 nexthop via 2001:db8:3::1
+
+	tc qdisc add dev $h3 ingress
+}
+
+h3_destroy()
+{
+	tc qdisc del dev $h3 ingress
+
+	ip route del 2001:db8:2::/64 vrf v$h3
+	ip route del 2001:db8:1::/64 vrf v$h3
+
+	ip route del 198.51.100.16/28 vrf v$h3
+	ip route del 198.51.100.0/28 vrf v$h3
+
+	simple_if_fini $h3 198.51.100.34/28 2001:db8:3::2/64
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+	ip link set dev $rp3 up
+
+	ip address add 198.51.100.1/28 dev $rp1
+	ip address add 198.51.100.17/28 dev $rp2
+	ip address add 198.51.100.33/28 dev $rp3
+
+	ip address add 2001:db8:1::1/64 dev $rp1
+	ip address add 2001:db8:2::1/64 dev $rp2
+	ip address add 2001:db8:3::1/64 dev $rp3
+
+	tc qdisc add dev $rp3 ingress
+}
+
+router_destroy()
+{
+	tc qdisc del dev $rp3 ingress
+
+	ip address del 2001:db8:3::1/64 dev $rp3
+	ip address del 2001:db8:2::1/64 dev $rp2
+	ip address del 2001:db8:1::1/64 dev $rp1
+
+	ip address del 198.51.100.33/28 dev $rp3
+	ip address del 198.51.100.17/28 dev $rp2
+	ip address del 198.51.100.1/28 dev $rp1
+
+	ip link set dev $rp3 down
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	adf_mcd_start || exit "$EXIT_STATUS"
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	defer_scopes_cleanup
+}
+
+create_mcast_sg()
+{
+	local if_name=$1; shift
+	local s_addr=$1; shift
+	local mcast=$1; shift
+	local dest_ifs=("${@}")
+
+	mc_cli add "$if_name" "$s_addr" "$mcast" "${dest_ifs[@]}"
+}
+
+delete_mcast_sg()
+{
+	local if_name=$1; shift
+	local s_addr=$1; shift
+	local mcast=$1; shift
+	local dest_ifs=("${@}")
+
+        mc_cli remove "$if_name" "$s_addr" "$mcast" "${dest_ifs[@]}"
+}
+
+mcast_v4()
+{
+	# Add two interfaces to an MC group, send a packet to the MC group and
+	# verify packets are received on both. Then delete the route and verify
+	# packets are no longer received.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 122 flower \
+		dst_ip 225.1.2.3 action drop
+	tc filter add dev $h3 ingress protocol ip pref 1 handle 133 flower \
+		dst_ip 225.1.2.3 action drop
+
+	create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+	# Send frames with the corresponding L2 destination address.
+	$MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h2 ingress" 122 5
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 133 5
+	check_err $? "Multicast not received on second host"
+
+	delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+	$MZ $h1 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h2 ingress" 122 5
+	check_err $? "Multicast received on host although deleted"
+	tc_check_packets "dev $h3 ingress" 133 5
+	check_err $? "Multicast received on second host although deleted"
+
+	tc filter del dev $h3 ingress protocol ip pref 1 handle 133 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 122 flower
+
+	log_test "mcast IPv4"
+}
+
+mcast_v6()
+{
+	# Add two interfaces to an MC group, send a packet to the MC group and
+	# verify packets are received on both. Then delete the route and verify
+	# packets are no longer received.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 122 flower \
+		dst_ip ff0e::3 action drop
+	tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 133 flower \
+		dst_ip ff0e::3 action drop
+
+	create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+	# Send frames with the corresponding L2 destination address.
+	$MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
+		-b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h2 ingress" 122 5
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 133 5
+	check_err $? "Multicast not received on second host"
+
+	delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+	$MZ $h1 -6 -c 5 -p 128 -t udp -a 00:11:22:33:44:55 \
+		-b 33:33:00:00:00:03 -A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h2 ingress" 122 5
+	check_err $? "Multicast received on first host although deleted"
+	tc_check_packets "dev $h3 ingress" 133 5
+	check_err $? "Multicast received on second host although deleted"
+
+	tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 133 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 122 flower
+
+	log_test "mcast IPv6"
+}
+
+rpf_v4()
+{
+	# Add a multicast route from first router port to the other two. Send
+	# matching packets and test that both hosts receive them. Then, send
+	# the same packets via the third router port and test that they do not
+	# reach any host due to RPF check. A filter with 'skip_hw' is added to
+	# test that devices capable of multicast routing offload trap those
+	# packets. The filter is essentialy a NOP in other scenarios.
+
+	RET=0
+
+	tc filter add dev $h1 ingress protocol ip pref 1 handle 1 flower \
+		dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 1 flower \
+		dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h3 ingress protocol ip pref 1 handle 1 flower \
+		dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $rp3 ingress protocol ip pref 1 handle 1 flower \
+		skip_hw dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action pass
+
+	create_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+	$MZ $h1 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 5
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 1 5
+	check_err $? "Multicast not received on second host"
+
+	$MZ $h3 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h1 ingress" 1 0
+	check_err $? "Multicast received on first host when should not"
+	tc_check_packets "dev $h2 ingress" 1 5
+	check_err $? "Multicast received on second host when should not"
+	tc_check_packets "dev $rp3 ingress" 1 5
+	check_err $? "Packets not trapped due to RPF check"
+
+	delete_mcast_sg $rp1 198.51.100.2 225.1.2.3 $rp2 $rp3
+
+	tc filter del dev $rp3 ingress protocol ip pref 1 handle 1 flower
+	tc filter del dev $h3 ingress protocol ip pref 1 handle 1 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 1 flower
+	tc filter del dev $h1 ingress protocol ip pref 1 handle 1 flower
+
+	log_test "RPF IPv4"
+}
+
+rpf_v6()
+{
+	RET=0
+
+	tc filter add dev $h1 ingress protocol ipv6 pref 1 handle 1 flower \
+		dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 1 flower \
+		dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 1 flower \
+		dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower \
+		skip_hw dst_ip ff0e::3 ip_proto udp dst_port 12345 action pass
+
+	create_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+	$MZ $h1 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+		-A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 5
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 1 5
+	check_err $? "Multicast not received on second host"
+
+	$MZ $h3 -6 -c 5 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+		-A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h1 ingress" 1 0
+	check_err $? "Multicast received on first host when should not"
+	tc_check_packets "dev $h2 ingress" 1 5
+	check_err $? "Multicast received on second host when should not"
+	tc_check_packets "dev $rp3 ingress" 1 5
+	check_err $? "Packets not trapped due to RPF check"
+
+	delete_mcast_sg $rp1 2001:db8:1::2 ff0e::3 $rp2 $rp3
+
+	tc filter del dev $rp3 ingress protocol ipv6 pref 1 handle 1 flower
+	tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 1 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 1 flower
+	tc filter del dev $h1 ingress protocol ipv6 pref 1 handle 1 flower
+
+	log_test "RPF IPv6"
+}
+
+unres_v4()
+{
+	# Send a multicast packet not corresponding to an installed route,
+	# causing the kernel to queue the packet for resolution and emit an
+	# IGMPMSG_NOCACHE notification. smcrouted will react to this
+	# notification by consulting its (*, G) list and installing an (S, G)
+	# route, which will be used to forward the queued packet.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 1 flower \
+		dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h3 ingress protocol ip pref 1 handle 1 flower \
+		dst_ip 225.1.2.3 ip_proto udp dst_port 12345 action drop
+
+	# Forwarding should fail before installing a matching (*, G).
+	$MZ $h1 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 0
+	check_err $? "Multicast received on first host when should not"
+	tc_check_packets "dev $h3 ingress" 1 0
+	check_err $? "Multicast received on second host when should not"
+
+	# Create (*, G). Will not be installed in the kernel.
+	create_mcast_sg $rp1 0.0.0.0 225.1.2.3 $rp2 $rp3
+
+	$MZ $h1 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 01:00:5e:01:02:03 \
+		-A 198.51.100.2 -B 225.1.2.3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 1
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 1 1
+	check_err $? "Multicast not received on second host"
+
+	delete_mcast_sg $rp1 0.0.0.0 225.1.2.3 $rp2 $rp3
+
+	tc filter del dev $h3 ingress protocol ip pref 1 handle 1 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 1 flower
+
+	log_test "Unresolved queue IPv4"
+}
+
+unres_v6()
+{
+	# Send a multicast packet not corresponding to an installed route,
+	# causing the kernel to queue the packet for resolution and emit an
+	# MRT6MSG_NOCACHE notification. smcrouted will react to this
+	# notification by consulting its (*, G) list and installing an (S, G)
+	# route, which will be used to forward the queued packet.
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ipv6 pref 1 handle 1 flower \
+		dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+	tc filter add dev $h3 ingress protocol ipv6 pref 1 handle 1 flower \
+		dst_ip ff0e::3 ip_proto udp dst_port 12345 action drop
+
+	# Forwarding should fail before installing a matching (*, G).
+	$MZ $h1 -6 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+		-A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 0
+	check_err $? "Multicast received on first host when should not"
+	tc_check_packets "dev $h3 ingress" 1 0
+	check_err $? "Multicast received on second host when should not"
+
+	# Create (*, G). Will not be installed in the kernel.
+	create_mcast_sg $rp1 :: ff0e::3 $rp2 $rp3
+
+	$MZ $h1 -6 -c 1 -p 128 -t udp "ttl=10,sp=54321,dp=12345" \
+		-a 00:11:22:33:44:55 -b 33:33:00:00:00:03 \
+		-A 2001:db8:1::2 -B ff0e::3 -q
+
+	tc_check_packets "dev $h2 ingress" 1 1
+	check_err $? "Multicast not received on first host"
+	tc_check_packets "dev $h3 ingress" 1 1
+	check_err $? "Multicast not received on second host"
+
+	delete_mcast_sg $rp1 :: ff0e::3 $rp2 $rp3
+
+	tc filter del dev $h3 ingress protocol ipv6 pref 1 handle 1 flower
+	tc filter del dev $h2 ingress protocol ipv6 pref 1 handle 1 flower
+
+	log_test "Unresolved queue IPv6"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_multipath.sh b/tools/testing/selftests/net/forwarding/router_multipath.sh
new file mode 100755
index 000000000000..46f365b557b7
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_multipath.sh
@@ -0,0 +1,307 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="ping_ipv4 ping_ipv6 multipath_test"
+NUM_NETIFS=8
+source lib.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+	ip address add 2001:db8:1::2/64 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 2001:db8:1::2/64 dev $h1
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+	ip address add 2001:db8:2::2/64 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 2001:db8:2::2/64 dev $h2
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router1_create()
+{
+	vrf_create "vrf-r1"
+	ip link set dev $rp11 master vrf-r1
+	ip link set dev $rp12 master vrf-r1
+	ip link set dev $rp13 master vrf-r1
+
+	ip link set dev vrf-r1 up
+	ip link set dev $rp11 up
+	ip link set dev $rp12 up
+	ip link set dev $rp13 up
+
+	ip address add 192.0.2.1/24 dev $rp11
+	ip address add 2001:db8:1::1/64 dev $rp11
+
+	ip address add 169.254.2.12/24 dev $rp12
+	ip address add fe80:2::12/64 dev $rp12
+
+	ip address add 169.254.3.13/24 dev $rp13
+	ip address add fe80:3::13/64 dev $rp13
+
+	ip route add 198.51.100.0/24 vrf vrf-r1 \
+		nexthop via 169.254.2.22 dev $rp12 \
+		nexthop via 169.254.3.23 dev $rp13
+	ip route add 2001:db8:2::/64 vrf vrf-r1 \
+		nexthop via fe80:2::22 dev $rp12 \
+		nexthop via fe80:3::23 dev $rp13
+}
+
+router1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-r1
+	ip route del 198.51.100.0/24 vrf vrf-r1
+
+	ip address del fe80:3::13/64 dev $rp13
+	ip address del 169.254.3.13/24 dev $rp13
+
+	ip address del fe80:2::12/64 dev $rp12
+	ip address del 169.254.2.12/24 dev $rp12
+
+	ip address del 2001:db8:1::1/64 dev $rp11
+	ip address del 192.0.2.1/24 dev $rp11
+
+	ip link set dev $rp13 down
+	ip link set dev $rp12 down
+	ip link set dev $rp11 down
+
+	vrf_destroy "vrf-r1"
+}
+
+router2_create()
+{
+	vrf_create "vrf-r2"
+	ip link set dev $rp21 master vrf-r2
+	ip link set dev $rp22 master vrf-r2
+	ip link set dev $rp23 master vrf-r2
+
+	ip link set dev vrf-r2 up
+	ip link set dev $rp21 up
+	ip link set dev $rp22 up
+	ip link set dev $rp23 up
+
+	ip address add 198.51.100.1/24 dev $rp21
+	ip address add 2001:db8:2::1/64 dev $rp21
+
+	ip address add 169.254.2.22/24 dev $rp22
+	ip address add fe80:2::22/64 dev $rp22
+
+	ip address add 169.254.3.23/24 dev $rp23
+	ip address add fe80:3::23/64 dev $rp23
+
+	ip route add 192.0.2.0/24 vrf vrf-r2 \
+		nexthop via 169.254.2.12 dev $rp22 \
+		nexthop via 169.254.3.13 dev $rp23
+	ip route add 2001:db8:1::/64 vrf vrf-r2 \
+		nexthop via fe80:2::12 dev $rp22 \
+		nexthop via fe80:3::13 dev $rp23
+}
+
+router2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-r2
+	ip route del 192.0.2.0/24 vrf vrf-r2
+
+	ip address del fe80:3::23/64 dev $rp23
+	ip address del 169.254.3.23/24 dev $rp23
+
+	ip address del fe80:2::22/64 dev $rp22
+	ip address del 169.254.2.22/24 dev $rp22
+
+	ip address del 2001:db8:2::1/64 dev $rp21
+	ip address del 198.51.100.1/24 dev $rp21
+
+	ip link set dev $rp23 down
+	ip link set dev $rp22 down
+	ip link set dev $rp21 down
+
+	vrf_destroy "vrf-r2"
+}
+
+multipath4_test()
+{
+       local desc="$1"
+       local weight_rp12=$2
+       local weight_rp13=$3
+       local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+       local packets_rp12 packets_rp13
+
+       # Transmit multiple flows from h1 to h2 and make sure they are
+       # distributed between both multipath links (rp12 and rp13)
+       # according to the configured weights.
+       sysctl_set net.ipv4.fib_multipath_hash_policy 1
+       ip route replace 198.51.100.0/24 vrf vrf-r1 \
+               nexthop via 169.254.2.22 dev $rp12 weight $weight_rp12 \
+               nexthop via 169.254.3.23 dev $rp13 weight $weight_rp13
+
+       t0_rp12=$(link_stats_tx_packets_get $rp12)
+       t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+       ip vrf exec vrf-h1 $MZ $h1 -q -p 64 -A 192.0.2.2 -B 198.51.100.2 \
+	       -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+       sleep 1
+
+       t1_rp12=$(link_stats_tx_packets_get $rp12)
+       t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+       let "packets_rp12 = $t1_rp12 - $t0_rp12"
+       let "packets_rp13 = $t1_rp13 - $t0_rp13"
+       multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+       # Restore settings.
+       ip route replace 198.51.100.0/24 vrf vrf-r1 \
+               nexthop via 169.254.2.22 dev $rp12 \
+               nexthop via 169.254.3.23 dev $rp13
+       sysctl_restore net.ipv4.fib_multipath_hash_policy
+}
+
+multipath6_test()
+{
+       local desc="$1"
+       local weight_rp12=$2
+       local weight_rp13=$3
+       local t0_rp12 t0_rp13 t1_rp12 t1_rp13
+       local packets_rp12 packets_rp13
+
+       # Transmit multiple flows from h1 to h2 and make sure they are
+       # distributed between both multipath links (rp12 and rp13)
+       # according to the configured weights.
+       sysctl_set net.ipv6.fib_multipath_hash_policy 1
+
+       ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+	       nexthop via fe80:2::22 dev $rp12 weight $weight_rp12 \
+	       nexthop via fe80:3::23 dev $rp13 weight $weight_rp13
+
+       t0_rp12=$(link_stats_tx_packets_get $rp12)
+       t0_rp13=$(link_stats_tx_packets_get $rp13)
+
+       $MZ $h1 -6 -q -p 64 -A 2001:db8:1::2 -B 2001:db8:2::2 \
+	       -d $MZ_DELAY -t udp "sp=1024,dp=0-32768"
+       sleep 1
+
+       t1_rp12=$(link_stats_tx_packets_get $rp12)
+       t1_rp13=$(link_stats_tx_packets_get $rp13)
+
+       let "packets_rp12 = $t1_rp12 - $t0_rp12"
+       let "packets_rp13 = $t1_rp13 - $t0_rp13"
+       multipath_eval "$desc" $weight_rp12 $weight_rp13 $packets_rp12 $packets_rp13
+
+       ip route replace 2001:db8:2::/64 vrf vrf-r1 \
+	       nexthop via fe80:2::22 dev $rp12 \
+	       nexthop via fe80:3::23 dev $rp13
+
+       sysctl_restore net.ipv6.fib_multipath_hash_policy
+}
+
+multipath_test()
+{
+	log_info "Running IPv4 multipath tests"
+	multipath4_test "ECMP" 1 1
+	multipath4_test "Weighted MP 2:1" 2 1
+	multipath4_test "Weighted MP 11:45" 11 45
+
+	log_info "Running IPv6 multipath tests"
+	multipath6_test "ECMP" 1 1
+	multipath6_test "Weighted MP 2:1" 2 1
+	multipath6_test "Weighted MP 11:45" 11 45
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp11=${NETIFS[p2]}
+
+	rp12=${NETIFS[p3]}
+	rp22=${NETIFS[p4]}
+
+	rp13=${NETIFS[p5]}
+	rp23=${NETIFS[p6]}
+
+	rp21=${NETIFS[p7]}
+	h2=${NETIFS[p8]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router1_create
+	router2_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router2_destroy
+	router1_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_nh.sh b/tools/testing/selftests/net/forwarding/router_nh.sh
new file mode 100755
index 000000000000..92904b01eae9
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_nh.sh
@@ -0,0 +1,174 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-------------------------+  +-------------------------+
+# | H1                      |  |                      H2 |
+# |               $h1 +     |  |               $h2 +     |
+# |      192.0.2.2/24 |     |  |   198.51.100.2/24 |     |
+# |  2001:db8:1::2/64 |     |  |  2001:db8:2::2/64 |     |
+# +-------------------|-----+  +-------------------|-----+
+#                     |                            |
+# +-------------------|----------------------------|-----+
+# | R1                |                            |     |
+# |              $rp1 +                       $rp2 +     |
+# |      192.0.2.1/24              198.51.100.1/24       |
+# |  2001:db8:1::1/64             2001:db8:2::1/64       |
+# +------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev $h1 master vrf-h1
+
+	ip link set dev vrf-h1 up
+	ip link set dev $h1 up
+
+	ip address add 192.0.2.2/24 dev $h1
+	ip address add 2001:db8:1::2/64 dev $h1
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	ip address del 2001:db8:1::2/64 dev $h1
+	ip address del 192.0.2.2/24 dev $h1
+
+	ip link set dev $h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev $h2 master vrf-h2
+
+	ip link set dev vrf-h2 up
+	ip link set dev $h2 up
+
+	ip address add 198.51.100.2/24 dev $h2
+	ip address add 2001:db8:2::2/64 dev $h2
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	ip address del 2001:db8:2::2/64 dev $h2
+	ip address del 198.51.100.2/24 dev $h2
+
+	ip link set dev $h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+
+	tc qdisc add dev $rp2 clsact
+
+	ip address add 192.0.2.1/24 dev $rp1
+	ip address add 2001:db8:1::1/64 dev $rp1
+
+	ip address add 198.51.100.1/24 dev $rp2
+	ip address add 2001:db8:2::1/64 dev $rp2
+}
+
+router_destroy()
+{
+	ip address del 2001:db8:2::1/64 dev $rp2
+	ip address del 198.51.100.1/24 dev $rp2
+
+	ip address del 2001:db8:1::1/64 dev $rp1
+	ip address del 192.0.2.1/24 dev $rp1
+
+	tc qdisc del dev $rp2 clsact
+
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+routing_nh_obj()
+{
+	# Create the nexthops as AF_INET6, so that IPv4 and IPv6 routes could
+	# use them.
+	ip -6 nexthop add id 101 dev $rp1
+	ip -6 nexthop add id 102 dev $rp2
+
+	ip route replace 192.0.2.0/24 nhid 101
+	ip route replace 2001:db8:1::/64 nhid 101
+	ip route replace 198.51.100.0/24 nhid 102
+	ip route replace 2001:db8:2::/64 nhid 102
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1mac=$(mac_get $rp1)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+routing_nh_obj
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/router_vid_1.sh b/tools/testing/selftests/net/forwarding/router_vid_1.sh
new file mode 100755
index 000000000000..865c9f7d8143
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/router_vid_1.sh
@@ -0,0 +1,160 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+                     +----------------------+
+# | H1                 |                     |                   H2 |
+# |                    |                     |                      |
+# |            $h1.1 + |                     | + $h2.1              |
+# |     192.0.2.2/24 | |                     | | 198.51.100.2/24    |
+# | 2001:db8:1::2/64 | |                     | | 2001:db8:2::2/64   |
+# |                  | |                     | |                    |
+# |              $h1 + |                     | + $h2                |
+# |                  | |                     | |                    |
+# +------------------|-+                     +-|--------------------+
+#                    |                         |
+# +------------------|-------------------------|--------------------+
+# | SW               |                         |                    |
+# |                  |                         |                    |
+# |             $rp1 +                         + $rp2               |
+# |                  |                         |                    |
+# |           $rp1.1 +                         + $rp2.1             |
+# |     192.0.2.1/24                             198.51.100.1/24    |
+# | 2001:db8:1::1/64                             2001:db8:2::1/64   |
+# |                                                                 |
+# +-----------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+"
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	vrf_create "vrf-h1"
+	ip link set dev vrf-h1 up
+
+	ip link set dev $h1 up
+	vlan_create $h1 1 vrf-h1 192.0.2.2/24 2001:db8:1::2/64
+
+	ip route add 198.51.100.0/24 vrf vrf-h1 nexthop via 192.0.2.1
+	ip route add 2001:db8:2::/64 vrf vrf-h1 nexthop via 2001:db8:1::1
+}
+
+h1_destroy()
+{
+	ip route del 2001:db8:2::/64 vrf vrf-h1
+	ip route del 198.51.100.0/24 vrf vrf-h1
+
+	vlan_destroy $h1 1
+	ip link set dev $h1 down
+
+	ip link set dev vrf-h1 down
+	vrf_destroy "vrf-h1"
+}
+
+h2_create()
+{
+	vrf_create "vrf-h2"
+	ip link set dev vrf-h2 up
+
+	ip link set dev $h2 up
+	vlan_create $h2 1 vrf-h2 198.51.100.2/24 2001:db8:2::2/64
+
+	ip route add 192.0.2.0/24 vrf vrf-h2 nexthop via 198.51.100.1
+	ip route add 2001:db8:1::/64 vrf vrf-h2 nexthop via 2001:db8:2::1
+}
+
+h2_destroy()
+{
+	ip route del 2001:db8:1::/64 vrf vrf-h2
+	ip route del 192.0.2.0/24 vrf vrf-h2
+
+	vlan_destroy $h2 1
+	ip link set dev $h2 down
+
+	ip link set dev vrf-h2 down
+	vrf_destroy "vrf-h2"
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link add link $rp1 name $rp1.1 up type vlan id 1
+
+	ip address add 192.0.2.1/24 dev $rp1.1
+	ip address add 2001:db8:1::1/64 dev $rp1.1
+
+	ip link set dev $rp2 up
+	ip link add link $rp2 name $rp2.1 up type vlan id 1
+
+	ip address add 198.51.100.1/24 dev $rp2.1
+	ip address add 2001:db8:2::1/64 dev $rp2.1
+}
+
+router_destroy()
+{
+	ip address del 2001:db8:2::1/64 dev $rp2.1
+	ip address del 198.51.100.1/24 dev $rp2.1
+
+	ip link del dev $rp2.1
+	ip link set dev $rp2 down
+
+	ip address del 2001:db8:1::1/64 dev $rp1.1
+	ip address del 192.0.2.1/24 dev $rp1.1
+
+	ip link del dev $rp1.1
+	ip link set dev $rp1 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1.1 198.51.100.2
+}
+
+ping_ipv6()
+{
+	ping6_test $h1.1 2001:db8:2::2
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_ets.sh b/tools/testing/selftests/net/forwarding/sch_ets.sh
new file mode 100755
index 000000000000..6269d5e23487
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A driver for the ETS selftest that implements testing in slowpath.
+lib_dir=.
+source sch_ets_core.sh
+
+ALL_TESTS="
+	ping_ipv4
+	priomap_mode
+	ets_test_strict
+	ets_test_mixed
+	ets_test_dwrr
+	ets_test_plug
+	classifier_mode
+	ets_test_strict
+	ets_test_mixed
+	ets_test_dwrr
+"
+
+switch_create()
+{
+	ets_switch_create
+
+	# Create a bottleneck so that the DWRR process can kick in.
+	tc qdisc add dev $swp2 root handle 1: tbf \
+	   rate 1Gbit burst 1Mbit latency 100ms
+	defer tc qdisc del dev $swp2 root
+	PARENT="parent 1:"
+}
+
+# Callback from sch_ets_tests.sh
+collect_stats()
+{
+	local -a streams=("$@")
+	local stream
+
+	for stream in ${streams[@]}; do
+		qdisc_parent_stats_get $swp2 10:$((stream + 1)) .bytes
+	done
+}
+
+ets_run
diff --git a/tools/testing/selftests/net/forwarding/sch_ets_core.sh b/tools/testing/selftests/net/forwarding/sch_ets_core.sh
new file mode 100644
index 000000000000..0453210271dc
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets_core.sh
@@ -0,0 +1,276 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This is a template for ETS Qdisc test.
+#
+# This test sends from H1 several traffic streams with 802.1p-tagged packets.
+# The tags are used at $swp1 to prioritize the traffic. Each stream is then
+# queued at a different ETS band according to the assigned priority. After
+# runnig for a while, counters at H2 are consulted to determine whether the
+# traffic scheduling was according to the ETS configuration.
+#
+# This template is supposed to be embedded by a test driver, which implements
+# statistics collection, any HW-specific stuff, and prominently configures the
+# system to assure that there is overcommitment at $swp2. That is necessary so
+# that the ETS traffic selection algorithm kicks in and has to schedule some
+# traffic at the expense of other.
+#
+# A driver for veth-based testing is in sch_ets.sh, an example of a driver for
+# an offloaded data path is in selftests/drivers/net/mlxsw/sch_ets.sh.
+#
+# +---------------------------------------------------------------------+
+# | H1                                                                  |
+# |     + $h1.10              + $h1.11              + $h1.12            |
+# |     | 192.0.2.1/28        | 192.0.2.17/28       | 192.0.2.33/28     |
+# |     | egress-qos-map      | egress-qos-map      | egress-qos-map    |
+# |     |  0:0                |  0:1                |  0:2              |
+# |     \____________________ | ____________________/                   |
+# |                          \|/                                        |
+# |                           + $h1                                     |
+# +---------------------------|-----------------------------------------+
+#                             |
+# +---------------------------|-----------------------------------------+
+# | SW                        + $swp1                                   |
+# |                           | >1Gbps                                  |
+# |      ____________________/|\____________________                    |
+# |     /                     |                     \                   |
+# |  +--|----------------+ +--|----------------+ +--|----------------+  |
+# |  |  + $swp1.10       | |  + $swp1.11       | |  + $swp1.12       |  |
+# |  |    ingress-qos-map| |    ingress-qos-map| |    ingress-qos-map|  |
+# |  |     0:0 1:1 2:2   | |     0:0 1:1 2:2   | |     0:0 1:1 2:2   |  |
+# |  |                   | |                   | |                   |  |
+# |  |    BR10           | |    BR11           | |    BR12           |  |
+# |  |                   | |                   | |                   |  |
+# |  |  + $swp2.10       | |  + $swp2.11       | |  + $swp2.12       |  |
+# |  +--|----------------+ +--|----------------+ +--|----------------+  |
+# |     \____________________ | ____________________/                   |
+# |                          \|/                                        |
+# |                           + $swp2                                   |
+# |                           | 1Gbps (ethtool or HTB qdisc)            |
+# |                           | qdisc ets quanta $W0 $W1 $W2            |
+# |                           |           priomap 0 1 2                 |
+# +---------------------------|-----------------------------------------+
+#                             |
+# +---------------------------|-----------------------------------------+
+# | H2                        + $h2                                     |
+# |      ____________________/|\____________________                    |
+# |     /                     |                     \                   |
+# |     + $h2.10              + $h2.11              + $h2.12            |
+# |       192.0.2.2/28          192.0.2.18/28         192.0.2.34/28     |
+# +---------------------------------------------------------------------+
+
+NUM_NETIFS=4
+CHECK_TC=yes
+source $lib_dir/lib.sh
+source $lib_dir/sch_ets_tests.sh
+
+PARENT=root
+QDISC_DEV=
+
+sip()
+{
+	echo 192.0.2.$((16 * $1 + 1))
+}
+
+dip()
+{
+	echo 192.0.2.$((16 * $1 + 2))
+}
+
+# Callback from sch_ets_tests.sh
+ets_start_traffic()
+{
+	local dst_mac=$(mac_get $h2)
+	local i=$1; shift
+
+	start_traffic $h1.1$i $(sip $i) $(dip $i) $dst_mac
+}
+
+ETS_CHANGE_QDISC=
+
+priomap_mode()
+{
+	echo "Running in priomap mode"
+	ets_delete_qdisc
+	ETS_CHANGE_QDISC=ets_change_qdisc_priomap
+}
+
+classifier_mode()
+{
+	echo "Running in classifier mode"
+	ets_delete_qdisc
+	ETS_CHANGE_QDISC=ets_change_qdisc_classifier
+}
+
+ets_change_qdisc_priomap()
+{
+	local dev=$1; shift
+	local nstrict=$1; shift
+	local priomap=$1; shift
+	local quanta=("${@}")
+
+	local op=$(if [[ -n $QDISC_DEV ]]; then echo change; else echo add; fi)
+
+	tc qdisc $op dev $dev $PARENT handle 10: ets			       \
+		$(if ((nstrict)); then echo strict $nstrict; fi)	       \
+		$(if ((${#quanta[@]})); then echo quanta ${quanta[@]}; fi)     \
+		priomap $priomap
+	QDISC_DEV=$dev
+}
+
+ets_change_qdisc_classifier()
+{
+	local dev=$1; shift
+	local nstrict=$1; shift
+	local priomap=$1; shift
+	local quanta=("${@}")
+
+	local op=$(if [[ -n $QDISC_DEV ]]; then echo change; else echo add; fi)
+
+	tc qdisc $op dev $dev $PARENT handle 10: ets			       \
+		$(if ((nstrict)); then echo strict $nstrict; fi)	       \
+		$(if ((${#quanta[@]})); then echo quanta ${quanta[@]}; fi)
+
+	if [[ $op == add ]]; then
+		local prio=0
+		local band
+
+		for band in $priomap; do
+			tc filter add dev $dev parent 10: basic \
+				match "meta(priority eq $prio)" \
+				flowid 10:$((band + 1))
+			((prio++))
+		done
+	fi
+	QDISC_DEV=$dev
+}
+
+# Callback from sch_ets_tests.sh
+ets_change_qdisc()
+{
+	if [[ -z "$ETS_CHANGE_QDISC" ]]; then
+		exit 1
+	fi
+	$ETS_CHANGE_QDISC "$@"
+}
+
+ets_delete_qdisc()
+{
+	if [[ -n $QDISC_DEV ]]; then
+		tc qdisc del dev $QDISC_DEV $PARENT
+		QDISC_DEV=
+	fi
+}
+
+h1_create()
+{
+	local i;
+
+	adf_simple_if_init $h1
+
+	mtu_set $h1 9900
+	defer mtu_restore $h1
+
+	for i in {0..2}; do
+		vlan_create $h1 1$i v$h1 $(sip $i)/28
+		defer vlan_destroy $h1 1$i
+		ip link set dev $h1.1$i type vlan egress 0:$i
+	done
+}
+
+h2_create()
+{
+	local i
+
+	adf_simple_if_init $h2
+
+	mtu_set $h2 9900
+	defer mtu_restore $h2
+
+	for i in {0..2}; do
+		vlan_create $h2 1$i v$h2 $(dip $i)/28
+		defer vlan_destroy $h2 1$i
+	done
+}
+
+ets_switch_create()
+{
+	local i
+
+	ip link set dev $swp1 up
+	defer ip link set dev $swp1 down
+
+	mtu_set $swp1 9900
+	defer mtu_restore $swp1
+
+	ip link set dev $swp2 up
+	defer ip link set dev $swp2 down
+
+	mtu_set $swp2 9900
+	defer mtu_restore $swp2
+
+	for i in {0..2}; do
+		vlan_create $swp1 1$i
+		defer vlan_destroy $swp1 1$i
+		ip link set dev $swp1.1$i type vlan ingress 0:0 1:1 2:2
+
+		vlan_create $swp2 1$i
+		defer vlan_destroy $swp2 1$i
+
+		ip link add dev br1$i type bridge
+		defer ip link del dev br1$i
+
+		ip link set dev $swp1.1$i master br1$i
+		defer ip link set dev $swp1.1$i nomaster
+
+		ip link set dev $swp2.1$i master br1$i
+		defer ip link set dev $swp2.1$i nomaster
+
+		ip link set dev br1$i up
+		defer ip link set dev br1$i down
+
+		ip link set dev $swp1.1$i up
+		defer ip link set dev $swp1.1$i down
+
+		ip link set dev $swp2.1$i up
+		defer ip link set dev $swp2.1$i down
+	done
+
+	defer ets_delete_qdisc
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	put=$swp2
+	hut=$h2
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1.10 $(dip 0) " vlan 10"
+	ping_test $h1.11 $(dip 1) " vlan 11"
+	ping_test $h1.12 $(dip 2) " vlan 12"
+}
+
+ets_run()
+{
+	trap cleanup EXIT
+
+	setup_prepare
+	setup_wait
+
+	tests_run
+
+	exit $EXIT_STATUS
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_ets_tests.sh b/tools/testing/selftests/net/forwarding/sch_ets_tests.sh
new file mode 100644
index 000000000000..79d837a2868a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_ets_tests.sh
@@ -0,0 +1,234 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# Global interface:
+#  $put -- port under test (e.g. $swp2)
+#  collect_stats($streams...) -- A function to get stats for individual streams
+#  ets_start_traffic($band) -- Start traffic for this band
+#  ets_change_qdisc($op, $dev, $nstrict, $quanta...) -- Add or change qdisc
+
+# WS describes the Qdisc configuration. It has one value per band (so the
+# number of array elements indicates the number of bands). If the value is
+# 0, it is a strict band, otherwise the it's a DRR band and the value is
+# that band's quantum.
+declare -a WS
+
+qdisc_describe()
+{
+	local nbands=${#WS[@]}
+	local nstrict=0
+	local i
+
+	for ((i = 0; i < nbands; i++)); do
+		if ((!${WS[$i]})); then
+			: $((nstrict++))
+		fi
+	done
+
+	echo -n "ets bands $nbands"
+	if ((nstrict)); then
+		echo -n " strict $nstrict"
+	fi
+	if ((nstrict < nbands)); then
+		echo -n " quanta"
+		for ((i = nstrict; i < nbands; i++)); do
+			echo -n " ${WS[$i]}"
+		done
+	fi
+}
+
+__strict_eval()
+{
+	local desc=$1; shift
+	local d=$1; shift
+	local total=$1; shift
+	local above=$1; shift
+
+	RET=0
+
+	if ((! total)); then
+		check_err 1 "No traffic observed"
+		log_test "$desc"
+		return
+	fi
+
+	local ratio=$(echo "scale=2; 100 * $d / $total" | bc -l)
+	if ((above)); then
+		test $(echo "$ratio > 95.0" | bc -l) -eq 1
+		check_err $? "Not enough traffic"
+		log_test "$desc"
+		log_info "Expected ratio >95% Measured ratio $ratio"
+	else
+		test $(echo "$ratio < 5" | bc -l) -eq 1
+		check_err $? "Too much traffic"
+		log_test "$desc"
+		log_info "Expected ratio <5% Measured ratio $ratio"
+	fi
+}
+
+strict_eval()
+{
+	__strict_eval "$@" 1
+}
+
+notraf_eval()
+{
+	__strict_eval "$@" 0
+}
+
+__ets_dwrr_test()
+{
+	local -a streams=("$@")
+
+	local low_stream=${streams[0]}
+	local seen_strict=0
+	local -a t0 t1 d
+	local stream
+	local total
+	local i
+
+	echo "Testing $(qdisc_describe), streams ${streams[@]}"
+
+	for stream in ${streams[@]}; do
+		ets_start_traffic $stream
+		defer stop_traffic $!
+	done
+
+	sleep 10
+
+	t0=($(collect_stats "${streams[@]}"))
+
+	sleep 10
+
+	t1=($(collect_stats "${streams[@]}"))
+	d=($(for ((i = 0; i < ${#streams[@]}; i++)); do
+		 echo $((${t1[$i]} - ${t0[$i]}))
+	     done))
+	total=$(echo ${d[@]} | sed 's/ /+/g' | bc)
+
+	for ((i = 0; i < ${#streams[@]}; i++)); do
+		local stream=${streams[$i]}
+		if ((seen_strict)); then
+			notraf_eval "band $stream" ${d[$i]} $total
+		elif ((${WS[$stream]} == 0)); then
+			strict_eval "band $stream" ${d[$i]} $total
+			seen_strict=1
+		elif ((stream == low_stream)); then
+			# Low stream is used as DWRR evaluation reference.
+			continue
+		else
+			multipath_eval "bands $low_stream:$stream" \
+				       ${WS[$low_stream]} ${WS[$stream]} \
+				       ${d[0]} ${d[$i]}
+		fi
+	done
+}
+
+ets_dwrr_test_012()
+{
+	in_defer_scope \
+		__ets_dwrr_test 0 1 2
+}
+
+ets_dwrr_test_01()
+{
+	in_defer_scope \
+		__ets_dwrr_test 0 1
+}
+
+ets_dwrr_test_12()
+{
+	in_defer_scope \
+		__ets_dwrr_test 1 2
+}
+
+ets_qdisc_setup()
+{
+	local dev=$1; shift
+	local nstrict=$1; shift
+	local -a quanta=("$@")
+
+	local ndwrr=${#quanta[@]}
+	local nbands=$((nstrict + ndwrr))
+	local nstreams=$(if ((nbands > 3)); then echo 3; else echo $nbands; fi)
+	local priomap=$(seq 0 $((nstreams - 1)))
+	local i
+
+	WS=($(
+		for ((i = 0; i < nstrict; i++)); do
+			echo 0
+		done
+		for ((i = 0; i < ndwrr; i++)); do
+			echo ${quanta[$i]}
+		done
+	))
+
+	ets_change_qdisc $dev $nstrict "$priomap" ${quanta[@]}
+}
+
+ets_set_dwrr_uniform()
+{
+	ets_qdisc_setup $put 0 3300 3300 3300
+}
+
+ets_set_dwrr_varying()
+{
+	ets_qdisc_setup $put 0 5000 3500 1500
+}
+
+ets_set_strict()
+{
+	ets_qdisc_setup $put 3
+}
+
+ets_set_mixed()
+{
+	ets_qdisc_setup $put 1 5000 2500 1500
+}
+
+ets_change_quantum()
+{
+	tc class change dev $put classid 10:2 ets quantum 8000
+	WS[1]=8000
+}
+
+ets_set_dwrr_two_bands()
+{
+	ets_qdisc_setup $put 0 5000 2500
+}
+
+ets_test_strict()
+{
+	ets_set_strict
+	xfail_on_slow ets_dwrr_test_01
+	xfail_on_slow ets_dwrr_test_12
+}
+
+ets_test_mixed()
+{
+	ets_set_mixed
+	xfail_on_slow ets_dwrr_test_01
+	xfail_on_slow ets_dwrr_test_12
+}
+
+ets_test_dwrr()
+{
+	ets_set_dwrr_uniform
+	xfail_on_slow ets_dwrr_test_012
+
+	ets_set_dwrr_varying
+	xfail_on_slow ets_dwrr_test_012
+
+	ets_change_quantum
+	xfail_on_slow ets_dwrr_test_012
+
+	ets_set_dwrr_two_bands
+	xfail_on_slow ets_dwrr_test_01
+}
+
+ets_test_plug()
+{
+	ets_change_qdisc $put 2 "3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3" "1514 1514"
+	tc qdisc add dev $put handle 20: parent 10:4 plug
+	start_traffic_pktsize 100 $h1.10 192.0.2.1 192.0.2.2 00:c1:a0:c1:a0:00 "-c 1"
+	ets_qdisc_setup $put 2
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_red.sh b/tools/testing/selftests/net/forwarding/sch_red.sh
new file mode 100755
index 000000000000..f2a3d9254642
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_red.sh
@@ -0,0 +1,460 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends one stream of traffic from H1 through a TBF shaper, to a RED
+# within TBF shaper on $swp3. The two shapers have the same configuration, and
+# thus the resulting stream should fill all available bandwidth on the latter
+# shaper. A second stream is sent from H2 also via $swp3, and used to inject
+# additional traffic. Since all available bandwidth is taken, this traffic has
+# to go to backlog.
+#
+# +--------------------------+                     +--------------------------+
+# | H1                       |                     | H2                       |
+# |     + $h1                |                     |     + $h2                |
+# |     | 192.0.2.1/28       |                     |     | 192.0.2.2/28       |
+# |     | TBF 10Mbps         |                     |     |                    |
+# +-----|--------------------+                     +-----|--------------------+
+#       |                                                |
+# +-----|------------------------------------------------|--------------------+
+# | SW  |                                                |                    |
+# |  +--|------------------------------------------------|----------------+   |
+# |  |  + $swp1                                          + $swp2          |   |
+# |  |                               BR                                   |   |
+# |  |                                                                    |   |
+# |  |                                + $swp3                             |   |
+# |  |                                | TBF 10Mbps / RED                  |   |
+# |  +--------------------------------|-----------------------------------+   |
+# |                                   |                                       |
+# +-----------------------------------|---------------------------------------+
+#                                     |
+#                               +-----|--------------------+
+#			        | H3  |                    |
+#			        |     + $h1                |
+#			        |       192.0.2.3/28       |
+#			        |                          |
+#			        +--------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	ecn_test
+	ecn_nodrop_test
+	red_test
+	red_qevent_test
+	ecn_qevent_test
+"
+
+NUM_NETIFS=6
+CHECK_TC="yes"
+source lib.sh
+
+BACKLOG=30000
+PKTSZ=1400
+
+h1_create()
+{
+	adf_simple_if_init $h1 192.0.2.1/28
+
+	mtu_set $h1 10000
+	defer mtu_restore $h1
+
+	tc qdisc replace dev $h1 root handle 1: tbf \
+	   rate 10Mbit burst 10K limit 1M
+	defer tc qdisc del dev $h1 root
+}
+
+h2_create()
+{
+	adf_simple_if_init $h2 192.0.2.2/28
+
+	mtu_set $h2 10000
+	defer mtu_restore $h2
+}
+
+h3_create()
+{
+	adf_simple_if_init $h3 192.0.2.3/28
+
+	mtu_set $h3 10000
+	defer mtu_restore $h3
+}
+
+switch_create()
+{
+	ip link add dev br up type bridge
+	defer ip link del dev br
+
+	ip link set dev $swp1 up master br
+	defer ip link set dev $swp1 down nomaster
+
+	ip link set dev $swp2 up master br
+	defer ip link set dev $swp2 down nomaster
+
+	ip link set dev $swp3 up master br
+	defer ip link set dev $swp3 down nomaster
+
+	mtu_set $swp1 10000
+	defer mtu_restore $h1
+
+	mtu_set $swp2 10000
+	defer mtu_restore $h2
+
+	mtu_set $swp3 10000
+	defer mtu_restore $h3
+
+	tc qdisc replace dev $swp3 root handle 1: tbf \
+	   rate 10Mbit burst 10K limit 1M
+	defer tc qdisc del dev $swp3 root
+
+	ip link add name _drop_test up type dummy
+	defer ip link del dev _drop_test
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	h2=${NETIFS[p3]}
+	swp2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	h3_mac=$(mac_get $h3)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.3 " from host 1"
+	ping_test $h2 192.0.2.3 " from host 2"
+}
+
+get_qdisc_backlog()
+{
+	qdisc_stats_get $swp3 11: .backlog
+}
+
+get_nmarked()
+{
+	qdisc_stats_get $swp3 11: .marked
+}
+
+get_qdisc_npackets()
+{
+	qdisc_stats_get $swp3 11: .packets
+}
+
+get_nmirrored()
+{
+	link_stats_get _drop_test tx packets
+}
+
+send_packets()
+{
+	local proto=$1; shift
+	local pkts=$1; shift
+
+	$MZ $h2 -p $PKTSZ -a own -b $h3_mac -A 192.0.2.2 -B 192.0.2.3 -t $proto -q -c $pkts "$@"
+}
+
+# This sends traffic in an attempt to build a backlog of $size. Returns 0 on
+# success. After 10 failed attempts it bails out and returns 1. It dumps the
+# backlog size to stdout.
+build_backlog()
+{
+	local size=$1; shift
+	local proto=$1; shift
+
+	local i=0
+
+	while :; do
+		local cur=$(get_qdisc_backlog)
+		local diff=$((size - cur))
+		local pkts=$(((diff + PKTSZ - 1) / PKTSZ))
+
+		if ((cur >= size)); then
+			echo $cur
+			return 0
+		elif ((i++ > 10)); then
+			echo $cur
+			return 1
+		fi
+
+		send_packets $proto $pkts "$@"
+		sleep 1
+	done
+}
+
+check_marking()
+{
+	local cond=$1; shift
+
+	local npackets_0=$(get_qdisc_npackets)
+	local nmarked_0=$(get_nmarked)
+	sleep 5
+	local npackets_1=$(get_qdisc_npackets)
+	local nmarked_1=$(get_nmarked)
+
+	local nmarked_d=$((nmarked_1 - nmarked_0))
+	local npackets_d=$((npackets_1 - npackets_0))
+	local pct=$((100 * nmarked_d / npackets_d))
+
+	echo $pct
+	((pct $cond))
+}
+
+check_mirroring()
+{
+	local cond=$1; shift
+
+	local npackets_0=$(get_qdisc_npackets)
+	local nmirrored_0=$(get_nmirrored)
+	sleep 5
+	local npackets_1=$(get_qdisc_npackets)
+	local nmirrored_1=$(get_nmirrored)
+
+	local nmirrored_d=$((nmirrored_1 - nmirrored_0))
+	local npackets_d=$((npackets_1 - npackets_0))
+	local pct=$((100 * nmirrored_d / npackets_d))
+
+	echo $pct
+	((pct $cond))
+}
+
+ecn_test_common()
+{
+	local name=$1; shift
+	local limit=$1; shift
+	local backlog
+	local pct
+
+	# Build the below-the-limit backlog using UDP. We could use TCP just
+	# fine, but this way we get a proof that UDP is accepted when queue
+	# length is below the limit. The main stream is using TCP, and if the
+	# limit is misconfigured, we would see this traffic being ECN marked.
+	RET=0
+	backlog=$(build_backlog $((2 * limit / 3)) udp)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	log_test "$name backlog < limit"
+
+	# Now push TCP, because non-TCP traffic would be early-dropped after the
+	# backlog crosses the limit, and we want to make sure that the backlog
+	# is above the limit.
+	RET=0
+	backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking ">= 95")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected >= 95."
+	log_test "$name backlog > limit"
+}
+
+do_ecn_test()
+{
+	local limit=$1; shift
+	local name=ECN
+
+	$MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+		-a own -b $h3_mac -t tcp -q tos=0x01 &
+	defer stop_traffic $!
+	sleep 1
+
+	ecn_test_common "$name" $limit
+
+	# Up there we saw that UDP gets accepted when backlog is below the
+	# limit. Now that it is above, it should all get dropped, and backlog
+	# building should fail.
+	RET=0
+	build_backlog $((2 * limit)) udp >/dev/null
+	check_fail $? "UDP traffic went into backlog instead of being early-dropped"
+	log_test "$name backlog > limit: UDP early-dropped"
+}
+
+do_ecn_nodrop_test()
+{
+	local limit=$1; shift
+	local name="ECN nodrop"
+
+	$MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+		-a own -b $h3_mac -t tcp -q tos=0x01 &
+	defer stop_traffic $!
+	sleep 1
+
+	ecn_test_common "$name" $limit
+
+	# Up there we saw that UDP gets accepted when backlog is below the
+	# limit. Now that it is above, in nodrop mode, make sure it goes to
+	# backlog as well.
+	RET=0
+	build_backlog $((2 * limit)) udp >/dev/null
+	check_err $? "UDP traffic was early-dropped instead of getting into backlog"
+	log_test "$name backlog > limit: UDP not dropped"
+}
+
+do_red_test()
+{
+	local limit=$1; shift
+	local backlog
+	local pct
+
+	# Use ECN-capable TCP to verify there's no marking even though the queue
+	# is above limit.
+	$MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+		-a own -b $h3_mac -t tcp -q tos=0x01 &
+	defer stop_traffic $!
+
+	# Pushing below the queue limit should work.
+	RET=0
+	backlog=$(build_backlog $((2 * limit / 3)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_marking "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	log_test "RED backlog < limit"
+
+	# Pushing above should not.
+	RET=0
+	backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+	check_fail $? "Traffic went into backlog instead of being early-dropped"
+	pct=$(check_marking "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% marked packets, expected == 0."
+	log_test "RED backlog > limit"
+}
+
+do_red_qevent_test()
+{
+	local limit=$1; shift
+	local backlog
+	local base
+	local now
+	local pct
+
+	RET=0
+
+	$MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+		-a own -b $h3_mac -t udp -q &
+	defer stop_traffic $!
+	sleep 1
+
+	tc filter add block 10 pref 1234 handle 102 matchall skip_hw \
+	   action mirred egress mirror dev _drop_test
+
+	# Push to the queue until it's at the limit. The configured limit is
+	# rounded by the qdisc, so this is the best we can do to get to the real
+	# limit.
+	build_backlog $((3 * limit / 2)) udp >/dev/null
+
+	base=$(get_nmirrored)
+	send_packets udp 100
+	sleep 1
+	now=$(get_nmirrored)
+	((now >= base + 100))
+	check_err $? "Dropped packets not observed: 100 expected, $((now - base)) seen"
+
+	tc filter del block 10 pref 1234 handle 102 matchall
+
+	base=$(get_nmirrored)
+	send_packets udp 100
+	sleep 1
+	now=$(get_nmirrored)
+	((now == base))
+	check_err $? "Dropped packets still observed: 0 expected, $((now - base)) seen"
+
+	log_test "RED early_dropped packets mirrored"
+}
+
+do_ecn_qevent_test()
+{
+	local limit=$1; shift
+	local name=ECN
+
+	RET=0
+
+	$MZ $h1 -p $PKTSZ -A 192.0.2.1 -B 192.0.2.3 -c 0 \
+		-a own -b $h3_mac -t tcp -q tos=0x01 &
+	defer stop_traffic $!
+	sleep 1
+
+	tc filter add block 10 pref 1234 handle 102 matchall skip_hw \
+	   action mirred egress mirror dev _drop_test
+
+	backlog=$(build_backlog $((2 * limit / 3)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_mirroring "== 0")
+	check_err $? "backlog $backlog / $limit Got $pct% mirrored packets, expected == 0."
+
+	backlog=$(build_backlog $((3 * limit / 2)) tcp tos=0x01)
+	check_err $? "Could not build the requested backlog"
+	pct=$(check_mirroring ">= 95")
+	check_err $? "backlog $backlog / $limit Got $pct% mirrored packets, expected >= 95."
+
+	tc filter del block 10 pref 1234 handle 102 matchall
+
+	log_test "ECN marked packets mirrored"
+}
+
+install_qdisc()
+{
+	local -a args=("$@")
+
+	tc qdisc replace dev $swp3 parent 1:1 handle 11: red \
+	   limit 1M avpkt $PKTSZ probability 1 \
+	   min $BACKLOG max $((BACKLOG + 1)) burst 38 "${args[@]}"
+	sleep 1
+}
+
+uninstall_qdisc()
+{
+	tc qdisc del dev $swp3 parent 1:1
+}
+
+ecn_test()
+{
+	install_qdisc ecn
+	defer uninstall_qdisc
+	xfail_on_slow do_ecn_test $BACKLOG
+}
+
+ecn_nodrop_test()
+{
+	install_qdisc ecn nodrop
+	defer uninstall_qdisc
+	xfail_on_slow do_ecn_nodrop_test $BACKLOG
+}
+
+red_test()
+{
+	install_qdisc
+	defer uninstall_qdisc
+	xfail_on_slow do_red_test $BACKLOG
+}
+
+red_qevent_test()
+{
+	install_qdisc qevent early_drop block 10
+	defer uninstall_qdisc
+	xfail_on_slow do_red_qevent_test $BACKLOG
+}
+
+ecn_qevent_test()
+{
+	install_qdisc ecn qevent mark block 10
+	defer uninstall_qdisc
+	xfail_on_slow do_ecn_qevent_test $BACKLOG
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_core.sh b/tools/testing/selftests/net/forwarding/sch_tbf_core.sh
new file mode 100644
index 000000000000..070c17faa9e4
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_core.sh
@@ -0,0 +1,200 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends a stream of traffic from H1 through a switch, to H2. On the
+# egress port from the switch ($swp2), a shaper is installed. The test verifies
+# that the rates on the port match the configured shaper.
+#
+# In order to test per-class shaping, $swp2 actually contains TBF under PRIO or
+# ETS, with two different configurations. Traffic is prioritized using 802.1p.
+#
+# +-------------------------------------------+
+# | H1                                        |
+# |     + $h1.10                  $h1.11 +    |
+# |     | 192.0.2.1/28     192.0.2.17/28 |    |
+# |     |                                |    |
+# |     \______________    _____________/     |
+# |                    \ /                    |
+# |                     + $h1                 |
+# +---------------------|---------------------+
+#                       |
+# +---------------------|---------------------+
+# | SW                  + $swp1               |
+# |     _______________/ \_______________     |
+# |    /                                 \    |
+# |  +-|--------------+   +--------------|-+  |
+# |  | + $swp1.10     |   |     $swp1.11 + |  |
+# |  |                |   |                |  |
+# |  |     BR10       |   |       BR11     |  |
+# |  |                |   |                |  |
+# |  | + $swp2.10     |   |     $swp2.11 + |  |
+# |  +-|--------------+   +--------------|-+  |
+# |    \_______________   ______________/     |
+# |                    \ /                    |
+# |                     + $swp2               |
+# +---------------------|---------------------+
+#                       |
+# +---------------------|---------------------+
+# | H2                  + $h2                 |
+# |      ______________/ \______________      |
+# |     /                               \     |
+# |     |                               |     |
+# |     + $h2.10                 $h2.11 +     |
+# |       192.0.2.2/28    192.0.2.18/28       |
+# +-------------------------------------------+
+
+NUM_NETIFS=4
+CHECK_TC="yes"
+source $lib_dir/lib.sh
+
+ipaddr()
+{
+	local host=$1; shift
+	local vlan=$1; shift
+
+	echo 192.0.2.$((16 * (vlan - 10) + host))
+}
+
+host_create()
+{
+	local dev=$1; shift
+	local host=$1; shift
+
+	adf_simple_if_init $dev
+
+	mtu_set $dev 10000
+	defer mtu_restore $dev
+
+	vlan_create $dev 10 v$dev $(ipaddr $host 10)/28
+	defer vlan_destroy $dev 10
+	ip link set dev $dev.10 type vlan egress 0:0
+
+	vlan_create $dev 11 v$dev $(ipaddr $host 11)/28
+	defer vlan_destroy $dev 11
+	ip link set dev $dev.11 type vlan egress 0:1
+}
+
+h1_create()
+{
+	host_create $h1 1
+}
+
+h2_create()
+{
+	host_create $h2 2
+
+	tc qdisc add dev $h2 clsact
+	defer tc qdisc del dev $h2 clsact
+
+	tc filter add dev $h2 ingress pref 1010 prot 802.1q \
+	   flower $TCFLAGS vlan_id 10 action pass
+	tc filter add dev $h2 ingress pref 1011 prot 802.1q \
+	   flower $TCFLAGS vlan_id 11 action pass
+}
+
+switch_create()
+{
+	local intf
+	local vlan
+
+	ip link add dev br10 type bridge
+	defer ip link del dev br10
+
+	ip link add dev br11 type bridge
+	defer ip link del dev br11
+
+	for intf in $swp1 $swp2; do
+		ip link set dev $intf up
+		defer ip link set dev $intf down
+
+		mtu_set $intf 10000
+		defer mtu_restore $intf
+
+		for vlan in 10 11; do
+			vlan_create $intf $vlan
+			defer vlan_destroy $intf $vlan
+
+			ip link set dev $intf.$vlan master br$vlan
+			defer ip link set dev $intf.$vlan nomaster
+
+			ip link set dev $intf.$vlan up
+			defer ip link set dev $intf.$vlan down
+		done
+	done
+
+	for vlan in 10 11; do
+		ip link set dev $swp1.$vlan type vlan ingress 0:0 1:1
+	done
+
+	ip link set dev br10 up
+	defer ip link set dev br10 down
+
+	ip link set dev br11 up
+	defer ip link set dev br11 down
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	swp4=${NETIFS[p7]}
+	swp5=${NETIFS[p8]}
+
+	h2_mac=$(mac_get $h2)
+
+	adf_vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+ping_ipv4()
+{
+	ping_test $h1.10 $(ipaddr 2 10) " vlan 10"
+	ping_test $h1.11 $(ipaddr 2 11) " vlan 11"
+}
+
+tbf_get_counter()
+{
+	local vlan=$1; shift
+
+	tc_rule_stats_get $h2 10$vlan ingress .bytes
+}
+
+__tbf_test()
+{
+	local vlan=$1; shift
+	local mbit=$1; shift
+
+	start_traffic $h1.$vlan $(ipaddr 1 $vlan) $(ipaddr 2 $vlan) $h2_mac
+	defer stop_traffic $!
+	sleep 5 # Wait for the burst to dwindle
+
+	local t2=$(busywait_for_counter 1000 +1 tbf_get_counter $vlan)
+	sleep 10
+	local t3=$(tbf_get_counter $vlan)
+
+	RET=0
+
+	# Note: TBF uses 10^6 Mbits, not 2^20 ones.
+	local er=$((mbit * 1000 * 1000))
+	local nr=$(rate $t2 $t3 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-5 <= nr_pct && nr_pct <= 5))
+	xfail_on_slow check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-5%."
+
+	log_test "TC $((vlan - 10)): TBF rate ${mbit}Mbit"
+}
+
+do_tbf_test()
+{
+	in_defer_scope \
+		__tbf_test "$@"
+}
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh b/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh
new file mode 100755
index 000000000000..84fb6cab88e4
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_ets.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+QDISC="ets strict"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_etsprio.sh
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
new file mode 100644
index 000000000000..c182a04282bc
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_etsprio.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	ping_ipv4
+	tbf_test
+	tbf_root_test
+"
+source $lib_dir/sch_tbf_core.sh
+
+QDISC_TYPE=${QDISC% *}
+
+tbf_test_one()
+{
+	local bs=$1; shift
+
+	tc qdisc replace dev $swp2 parent 10:3 handle 103: tbf \
+	   rate 400Mbit burst $bs limit 1M
+	tc qdisc replace dev $swp2 parent 10:2 handle 102: tbf \
+	   rate 800Mbit burst $bs limit 1M
+
+	do_tbf_test 10 400 $bs
+	do_tbf_test 11 800 $bs
+}
+
+tbf_test()
+{
+	log_info "Testing root-$QDISC_TYPE-tbf"
+
+	# This test is used for both ETS and PRIO. Even though we only need two
+	# bands, PRIO demands a minimum of three.
+	tc qdisc add dev $swp2 root handle 10: $QDISC 3 priomap 2 1 0
+	defer tc qdisc del dev $swp2 root
+
+	tbf_test_one 128K
+}
+
+tbf_root_test()
+{
+	local bs=128K
+
+	log_info "Testing root-tbf-$QDISC_TYPE"
+
+	tc qdisc replace dev $swp2 root handle 1: \
+		tbf rate 400Mbit burst $bs limit 1M
+	defer tc qdisc del dev $swp2 root
+
+	tc qdisc replace dev $swp2 parent 1:1 handle 10: \
+		$QDISC 3 priomap 2 1 0
+	tc qdisc replace dev $swp2 parent 10:3 handle 103: \
+		bfifo limit 1M
+	tc qdisc replace dev $swp2 parent 10:2 handle 102: \
+		bfifo limit 1M
+	tc qdisc replace dev $swp2 parent 10:1 handle 101: \
+		bfifo limit 1M
+
+	do_tbf_test 10 400 $bs
+	do_tbf_test 11 400 $bs
+}
+
+if type -t sch_tbf_pre_hook >/dev/null; then
+	sch_tbf_pre_hook
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh b/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh
new file mode 100755
index 000000000000..9c8cb1cb9ba4
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_prio.sh
@@ -0,0 +1,6 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+QDISC="prio bands"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_etsprio.sh
diff --git a/tools/testing/selftests/net/forwarding/sch_tbf_root.sh b/tools/testing/selftests/net/forwarding/sch_tbf_root.sh
new file mode 100755
index 000000000000..9f20320f8d84
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/sch_tbf_root.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	ping_ipv4
+	tbf_test
+"
+: ${lib_dir:=.}
+source $lib_dir/sch_tbf_core.sh
+
+tbf_test_one()
+{
+	local bs=$1; shift
+
+	tc qdisc replace dev $swp2 root handle 108: tbf \
+	   rate 400Mbit burst $bs limit 1M
+	defer tc qdisc del dev $swp2 root
+
+	do_tbf_test 10 400 $bs
+}
+
+tbf_test()
+{
+	tbf_test_one 128K
+}
+
+if type -t sch_tbf_pre_hook >/dev/null; then
+	sch_tbf_pre_hook
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/settings b/tools/testing/selftests/net/forwarding/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/net/forwarding/skbedit_priority.sh b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
new file mode 100755
index 000000000000..3dd5fcbd3eaa
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/skbedit_priority.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test sends traffic from H1 to H2. Either on ingress of $swp1, or on
+# egress of $swp2, the traffic is acted upon by an action skbedit priority. The
+# new priority should be taken into account when classifying traffic on the PRIO
+# qdisc at $swp2. The test verifies that for different priority values, the
+# traffic ends up in expected PRIO band.
+#
+# +----------------------+                             +----------------------+
+# | H1                   |                             |                   H2 |
+# |    + $h1             |                             |            $h2 +     |
+# |    | 192.0.2.1/28    |                             |   192.0.2.2/28 |     |
+# +----|-----------------+                             +----------------|-----+
+#      |                                                                |
+# +----|----------------------------------------------------------------|-----+
+# | SW |                                                                |     |
+# |  +-|----------------------------------------------------------------|-+   |
+# |  | + $swp1                       BR                           $swp2 + |   |
+# |  |                                                             PRIO   |   |
+# |  +--------------------------------------------------------------------+   |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	test_ingress
+	test_egress
+"
+
+NUM_NETIFS=4
+source lib.sh
+
+: ${HIT_TIMEOUT:=2000} # ms
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1
+	ip link set dev br1 addrgenmode none
+	ip link set dev br1 up
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+	tc qdisc add dev $swp2 root handle 10: \
+	   prio bands 8 priomap 7 6 5 4 3 2 1 0
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 root
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2
+}
+
+test_skbedit_priority_one()
+{
+	local locus=$1; shift
+	local prio=$1; shift
+	local classid=$1; shift
+
+	RET=0
+
+	tc filter add $locus handle 101 pref 1 \
+	   flower action skbedit priority $prio
+
+	local pkt0=$(qdisc_parent_stats_get $swp2 $classid .packets)
+	local pkt2=$(tc_rule_handle_stats_get "$locus" 101)
+	$MZ $h1 -t udp "sp=54321,dp=12345" -c 10 -d 20msec -p 100 \
+	    -a own -b $h2mac -A 192.0.2.1 -B 192.0.2.2 -q
+
+	local pkt1
+	pkt1=$(busywait "$HIT_TIMEOUT" until_counter_is ">= $((pkt0 + 10))" \
+			qdisc_parent_stats_get $swp2 $classid .packets)
+	check_err $? "Expected to get 10 packets on class $classid, but got $((pkt1 - pkt0))."
+
+	local pkt3=$(tc_rule_handle_stats_get "$locus" 101)
+	((pkt3 >= pkt2 + 10))
+	check_err $? "Expected to get 10 packets on skbedit rule but got $((pkt3 - pkt2))."
+
+	log_test "$locus skbedit priority $prio -> classid $classid"
+
+	tc filter del $locus pref 1
+}
+
+test_ingress()
+{
+	local prio
+
+	for prio in {0..7}; do
+		test_skbedit_priority_one "dev $swp1 ingress" \
+					  $prio 10:$((8 - prio))
+	done
+}
+
+test_egress()
+{
+	local prio
+
+	for prio in {0..7}; do
+		test_skbedit_priority_one "dev $swp2 egress" \
+					  $prio 10:$((8 - prio))
+	done
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_actions.sh b/tools/testing/selftests/net/forwarding/tc_actions.sh
new file mode 100755
index 000000000000..ea89e558672d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_actions.sh
@@ -0,0 +1,362 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="gact_drop_and_ok_test mirred_egress_redirect_test \
+	mirred_egress_mirror_test matchall_mirred_egress_mirror_test \
+	gact_trap_test mirred_egress_to_ingress_test \
+	mirred_egress_to_ingress_tcp_test \
+	ingress_2nd_vlan_push egress_2nd_vlan_push"
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+
+require_command ncat
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+	tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/24
+}
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.2/24
+	tc qdisc add dev $swp1 clsact
+
+	simple_if_init $swp2 192.0.2.1/24
+}
+
+switch_destroy()
+{
+	simple_if_fini $swp2 192.0.2.1/24
+
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1 192.0.2.2/24
+}
+
+mirred_egress_test()
+{
+	local action=$1
+	local protocol=$2
+	local classifier=$3
+	local classifier_args=$4
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched without redirect rule inserted"
+
+	tc filter add dev $swp1 ingress protocol $protocol pref 1 handle 101 \
+		$classifier $tcflags $classifier_args \
+		action mirred egress $action dev $swp2
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match incoming $action packet"
+
+	tc filter del dev $swp1 ingress protocol $protocol pref 1 handle 101 \
+		$classifier
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "mirred egress $classifier $action ($tcflags)"
+}
+
+gact_drop_and_ok_test()
+{
+	RET=0
+
+	tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $swp1 ingress" 102 1
+	check_err $? "Packet was not dropped"
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action ok
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $swp1 ingress" 101 1
+	check_err $? "Did not see passed packet"
+
+	tc_check_packets "dev $swp1 ingress" 102 2
+	check_fail $? "Packet was dropped and it should not reach here"
+
+	tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "gact drop and ok ($tcflags)"
+}
+
+gact_trap_test()
+{
+	RET=0
+
+	if [[ "$tcflags" != "skip_sw" ]]; then
+		return 0;
+	fi
+
+	tc filter add dev $swp1 ingress protocol ip pref 1 handle 101 flower \
+		skip_hw dst_ip 192.0.2.2 action drop
+	tc filter add dev $swp1 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.2.2 action mirred egress redirect \
+		dev $swp2
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $swp1 ingress" 101 1
+	check_fail $? "Saw packet without trap rule inserted"
+
+	tc filter add dev $swp1 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action trap
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $swp1 ingress" 102 1
+	check_err $? "Packet was not trapped"
+
+	tc_check_packets "dev $swp1 ingress" 101 1
+	check_err $? "Did not see trapped packet"
+
+	tc filter del dev $swp1 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $swp1 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $swp1 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "trap ($tcflags)"
+}
+
+mirred_egress_to_ingress_test()
+{
+	RET=0
+
+	tc filter add dev $h1 protocol ip pref 100 handle 100 egress flower \
+		ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 8 action \
+			ct commit nat src addr 192.0.2.2 pipe \
+			ct clear pipe \
+			ct commit nat dst addr 192.0.2.1 pipe \
+			mirred ingress redirect dev $h1
+
+	tc filter add dev $swp1 protocol ip pref 11 handle 111 ingress flower \
+		ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 8 action drop
+	tc filter add dev $swp1 protocol ip pref 12 handle 112 ingress flower \
+		ip_proto icmp src_ip 192.0.2.1 dst_ip 192.0.2.2 type 0 action pass
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t icmp "ping,id=42,seq=10" -q
+
+	tc_check_packets "dev $h1 egress" 100 1
+	check_err $? "didn't mirror first packet"
+
+	tc_check_packets "dev $swp1 ingress" 111 1
+	check_fail $? "didn't redirect first packet"
+	tc_check_packets "dev $swp1 ingress" 112 1
+	check_err $? "didn't receive reply to first packet"
+
+	ping 192.0.2.2 -I$h1 -c1 -w1 -q 1>/dev/null 2>&1
+
+	tc_check_packets "dev $h1 egress" 100 2
+	check_err $? "didn't mirror second packet"
+	tc_check_packets "dev $swp1 ingress" 111 1
+	check_fail $? "didn't redirect second packet"
+	tc_check_packets "dev $swp1 ingress" 112 2
+	check_err $? "didn't receive reply to second packet"
+
+	tc filter del dev $h1 egress protocol ip pref 100 handle 100 flower
+	tc filter del dev $swp1 ingress protocol ip pref 11 handle 111 flower
+	tc filter del dev $swp1 ingress protocol ip pref 12 handle 112 flower
+
+	log_test "mirred_egress_to_ingress ($tcflags)"
+}
+
+mirred_egress_to_ingress_tcp_test()
+{
+	mirred_e2i_tf1=$(mktemp) mirred_e2i_tf2=$(mktemp)
+
+	RET=0
+	dd conv=sparse status=none if=/dev/zero bs=1M count=2 of=$mirred_e2i_tf1
+	tc filter add dev $h1 protocol ip pref 100 handle 100 egress flower \
+		$tcflags ip_proto tcp src_ip 192.0.2.1 dst_ip 192.0.2.2 \
+			action ct commit nat src addr 192.0.2.2 pipe \
+			action ct clear pipe \
+			action ct commit nat dst addr 192.0.2.1 pipe \
+			action ct clear pipe \
+			action skbedit ptype host pipe \
+			action mirred ingress redirect dev $h1
+	tc filter add dev $h1 protocol ip pref 101 handle 101 egress flower \
+		$tcflags ip_proto icmp \
+			action mirred ingress redirect dev $h1
+	tc filter add dev $h1 protocol ip pref 102 handle 102 ingress flower \
+		ip_proto icmp \
+			action drop
+
+	ip vrf exec v$h1 ncat --recv-only -w10 -l -p 12345 -o $mirred_e2i_tf2 &
+	local rpid=$!
+	ip vrf exec v$h1 ncat -w1 --send-only 192.0.2.2 12345 <$mirred_e2i_tf1
+	wait -n $rpid
+	cmp -s $mirred_e2i_tf1 $mirred_e2i_tf2
+	check_err $? "server output check failed"
+
+	$MZ $h1 -c 10 -p 64 -a $h1mac -b $h1mac -A 192.0.2.1 -B 192.0.2.1 \
+		-t icmp "ping,id=42,seq=5" -q
+	tc_check_packets "dev $h1 egress" 101 10
+	check_err $? "didn't mirred redirect ICMP"
+	tc_check_packets "dev $h1 ingress" 102 10
+	check_err $? "didn't drop mirred ICMP"
+
+	tc filter del dev $h1 egress protocol ip pref 100 handle 100 flower
+	tc filter del dev $h1 egress protocol ip pref 101 handle 101 flower
+	tc filter del dev $h1 ingress protocol ip pref 102 handle 102 flower
+
+	rm -f $mirred_e2i_tf1 $mirred_e2i_tf2
+	log_test "mirred_egress_to_ingress_tcp ($tcflags)"
+}
+
+ingress_2nd_vlan_push()
+{
+	tc filter add dev $swp1 ingress pref 20 chain 0 handle 20 flower \
+		$tcflags num_of_vlans 1 \
+		action vlan push id 100 protocol 0x8100 action goto chain 5
+	tc filter add dev $swp1 ingress pref 30 chain 5 handle 30 flower \
+		$tcflags num_of_vlans 2 \
+		cvlan_ethtype 0x800 action pass
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -Q 10 -q
+
+	tc_check_packets "dev $swp1 ingress" 30 1
+	check_err $? "No double-vlan packets received"
+
+	tc filter del dev $swp1 ingress pref 20 chain 0 handle 20 flower
+	tc filter del dev $swp1 ingress pref 30 chain 5 handle 30 flower
+
+	log_test "ingress_2nd_vlan_push ($tcflags)"
+}
+
+egress_2nd_vlan_push()
+{
+	tc filter add dev $h1 egress pref 20 chain 0 handle 20 flower \
+		$tcflags num_of_vlans 0 \
+		action vlan push id 10 protocol 0x8100 \
+		pipe action vlan push id 100 protocol 0x8100 action goto chain 5
+	tc filter add dev $h1 egress pref 30 chain 5 handle 30 flower \
+		$tcflags num_of_vlans 2 \
+		cvlan_ethtype 0x800 action pass
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h1 egress" 30 1
+	check_err $? "No double-vlan packets received"
+
+	tc filter del dev $h1 egress pref 20 chain 0 handle 20 flower
+	tc filter del dev $h1 egress pref 30 chain 5 handle 30 flower
+
+	log_test "egress_2nd_vlan_push ($tcflags)"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	swp1origmac=$(mac_get $swp1)
+	swp2origmac=$(mac_get $swp2)
+	ip link set $swp1 address $h2mac
+	ip link set $swp2 address $h1mac
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	local tf
+
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	ip link set $swp2 address $swp2origmac
+	ip link set $swp1 address $swp1origmac
+
+	for tf in $mirred_e2i_tf1 $mirred_e2i_tf2; do rm -f $tf; done
+}
+
+mirred_egress_redirect_test()
+{
+	mirred_egress_test "redirect" "ip" "flower" "dst_ip 192.0.2.2"
+}
+
+mirred_egress_mirror_test()
+{
+	mirred_egress_test "mirror" "ip" "flower" "dst_ip 192.0.2.2"
+}
+
+matchall_mirred_egress_mirror_test()
+{
+	mirred_egress_test "mirror" "all" "matchall" ""
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_chains.sh b/tools/testing/selftests/net/forwarding/tc_chains.sh
new file mode 100755
index 000000000000..b95de0463ebd
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_chains.sh
@@ -0,0 +1,205 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="unreachable_chain_test gact_goto_chain_test create_destroy_chain \
+	   template_filter_fits"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/24
+}
+
+unreachable_chain_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower $tcflags dst_mac $h2mac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 1101 1
+	check_fail $? "matched on filter in unreachable chain"
+
+	tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower
+
+	log_test "unreachable chain ($tcflags)"
+}
+
+gact_goto_chain_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower $tcflags dst_mac $h2mac action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_mac $h2mac action drop
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_mac $h2mac action goto chain 1
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter with goto chain action"
+
+	tc_check_packets "dev $h2 ingress" 1101 1
+	check_err $? "Did not match on correct filter in chain 1"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower
+
+	log_test "gact goto chain ($tcflags)"
+}
+
+create_destroy_chain()
+{
+	RET=0
+
+	tc chain add dev $h2 ingress
+	check_err $? "Failed to create default chain"
+
+	output="$(tc -j chain get dev $h2 ingress)"
+	check_err $? "Failed to get default chain"
+
+	echo $output | jq -e ".[] | select(.chain == 0)" &> /dev/null
+	check_err $? "Unexpected output for default chain"
+
+	tc chain add dev $h2 ingress chain 1
+	check_err $? "Failed to create chain 1"
+
+	output="$(tc -j chain get dev $h2 ingress chain 1)"
+	check_err $? "Failed to get chain 1"
+
+	echo $output | jq -e ".[] | select(.chain == 1)" &> /dev/null
+	check_err $? "Unexpected output for chain 1"
+
+	output="$(tc -j chain show dev $h2 ingress)"
+	check_err $? "Failed to dump chains"
+
+	echo $output | jq -e ".[] | select(.chain == 0)" &> /dev/null
+	check_err $? "Can't find default chain in dump"
+
+	echo $output | jq -e ".[] | select(.chain == 1)" &> /dev/null
+	check_err $? "Can't find chain 1 in dump"
+
+	tc chain del dev $h2 ingress
+	check_err $? "Failed to destroy default chain"
+
+	tc chain del dev $h2 ingress chain 1
+	check_err $? "Failed to destroy chain 1"
+
+	log_test "create destroy chain"
+}
+
+template_filter_fits()
+{
+	RET=0
+
+	tc chain add dev $h2 ingress protocol ip \
+		flower dst_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF &> /dev/null
+	tc chain add dev $h2 ingress chain 1 protocol ip \
+		flower src_mac 00:00:00:00:00:00/FF:FF:FF:FF:FF:FF &> /dev/null
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 1101 \
+		flower dst_mac $h2mac action drop
+	check_err $? "Failed to insert filter which fits template"
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 1102 \
+		flower src_mac $h2mac action drop &> /dev/null
+	check_fail $? "Incorrectly succeeded to insert filter which does not template"
+
+	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower src_mac $h2mac action drop
+	check_err $? "Failed to insert filter which fits template"
+
+	tc filter add dev $h2 ingress chain 1 protocol ip pref 1 handle 1102 \
+		flower dst_mac $h2mac action drop &> /dev/null
+	check_fail $? "Incorrectly succeeded to insert filter which does not template"
+
+	tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1102 \
+		flower &> /dev/null
+	tc filter del dev $h2 ingress chain 1 protocol ip pref 1 handle 1101 \
+		flower &> /dev/null
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 1102 \
+		flower &> /dev/null
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 1101 \
+		flower &> /dev/null
+
+	tc chain del dev $h2 ingress chain 1
+	tc chain del dev $h2 ingress
+
+	log_test "template filter fits"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+check_tc_chain_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_common.sh b/tools/testing/selftests/net/forwarding/tc_common.sh
new file mode 100644
index 000000000000..2e3326edfa9a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_common.sh
@@ -0,0 +1,36 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+CHECK_TC="yes"
+
+# Can be overridden by the configuration file. See lib.sh
+: "${TC_HIT_TIMEOUT:=1000}" # ms
+
+tc_check_packets()
+{
+	local id=$1
+	local handle=$2
+	local count=$3
+
+	busywait "$TC_HIT_TIMEOUT" until_counter_is "== $count" \
+		 tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
+
+tc_check_at_least_x_packets()
+{
+	local id=$1
+	local handle=$2
+	local count=$3
+
+	busywait "$TC_HIT_TIMEOUT" until_counter_is ">= $count" \
+		 tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
+
+tc_check_packets_hitting()
+{
+	local id=$1
+	local handle=$2
+
+	busywait "$TC_HIT_TIMEOUT" until_counter_is "> 0" \
+		 tc_rule_handle_stats_get "$id" "$handle" > /dev/null
+}
diff --git a/tools/testing/selftests/net/forwarding/tc_flower.sh b/tools/testing/selftests/net/forwarding/tc_flower.sh
new file mode 100755
index 000000000000..b58909a93112
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower.sh
@@ -0,0 +1,767 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_dst_mac_test match_src_mac_test match_dst_ip_test \
+	match_src_ip_test match_ip_flags_test match_pcp_test match_vlan_test \
+	match_ip_tos_test match_indev_test match_ip_ttl_test
+	match_mpls_label_test \
+	match_mpls_tc_test match_mpls_bos_test match_mpls_ttl_test \
+	match_mpls_lse_test match_erspan_opts_test"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 198.51.100.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 198.51.100.2/24
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/24 198.51.100.2/24
+}
+
+match_dst_mac_test()
+{
+	local dummy_mac=de:ad:be:ef:aa:aa
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_mac $dummy_mac action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_mac $h2mac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_fail $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "dst_mac match ($tcflags)"
+}
+
+match_src_mac_test()
+{
+	local dummy_mac=de:ad:be:ef:aa:aa
+
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags src_mac $dummy_mac action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags src_mac $h1mac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_fail $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	log_test "src_mac match ($tcflags)"
+}
+
+match_dst_ip_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 198.51.100.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags dst_ip 192.0.2.0/24 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match on correct filter with mask"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+	log_test "dst_ip match ($tcflags)"
+}
+
+match_src_ip_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags src_ip 198.51.100.1 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags src_ip 192.0.2.1 action drop
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags src_ip 192.0.2.0/24 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match on correct filter with mask"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+
+	log_test "src_ip match ($tcflags)"
+}
+
+match_ip_flags_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags ip_flags frag action continue
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags ip_flags firstfrag action continue
+	tc filter add dev $h2 ingress protocol ip pref 3 handle 103 flower \
+		$tcflags ip_flags nofirstfrag action continue
+	tc filter add dev $h2 ingress protocol ip pref 4 handle 104 flower \
+		$tcflags ip_flags nofrag action drop
+
+	$MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "frag=0" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on wrong frag filter (nofrag)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_fail $? "Matched on wrong firstfrag filter (nofrag)"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match on nofirstfrag filter (nofrag) "
+
+	tc_check_packets "dev $h2 ingress" 104 1
+	check_err $? "Did not match on nofrag filter (nofrag)"
+
+	$MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "frag=0,mf" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on frag filter (1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match fistfrag filter (1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Matched on wrong nofirstfrag filter (1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 104 1
+	check_err $? "Match on wrong nofrag filter (1stfrag)"
+
+	$MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "frag=256,mf" -q
+	$MZ $h1 -c 1 -p 1000 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "frag=256" -q
+
+	tc_check_packets "dev $h2 ingress" 101 3
+	check_err $? "Did not match on frag filter (no1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Matched on wrong firstfrag filter (no1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 103 3
+	check_err $? "Did not match on nofirstfrag filter (no1stfrag)"
+
+	tc_check_packets "dev $h2 ingress" 104 1
+	check_err $? "Matched on nofrag filter (no1stfrag)"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol ip pref 4 handle 104 flower
+
+	log_test "ip_flags match ($tcflags)"
+}
+
+match_pcp_test()
+{
+	RET=0
+
+	vlan_create $h2 85 v$h2 192.0.2.11/24
+
+	tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 101 \
+		flower vlan_prio 6 $tcflags dst_mac $h2mac action drop
+	tc filter add dev $h2 ingress protocol 802.1q pref 2 handle 102 \
+		flower vlan_prio 7 $tcflags dst_mac $h2mac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 7:85 -t ip -q
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 0:85 -t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 0
+	check_err $? "Matched on specified PCP when should not"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on specified PCP"
+
+	tc filter del dev $h2 ingress protocol 802.1q pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 101 flower
+
+	vlan_destroy $h2 85
+
+	log_test "PCP match ($tcflags)"
+}
+
+match_vlan_test()
+{
+	RET=0
+
+	vlan_create $h2 85 v$h2 192.0.2.11/24
+	vlan_create $h2 75 v$h2 192.0.2.10/24
+
+	tc filter add dev $h2 ingress protocol 802.1q pref 1 handle 101 \
+		flower vlan_id 75 $tcflags action drop
+	tc filter add dev $h2 ingress protocol 802.1q pref 2 handle 102 \
+		flower vlan_id 85 $tcflags action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -B 192.0.2.11 -Q 0:85 -t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 0
+	check_err $? "Matched on specified VLAN when should not"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on specified VLAN"
+
+	tc filter del dev $h2 ingress protocol 802.1q pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol 802.1q pref 1 handle 101 flower
+
+	vlan_destroy $h2 75
+	vlan_destroy $h2 85
+
+	log_test "VLAN match ($tcflags)"
+}
+
+match_ip_tos_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 ip_tos 0x20 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 ip_tos 0x18 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip tos=18 -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter (0x18)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (0x18)"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip tos=20 -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_fail $? "Matched on a wrong filter (0x20)"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter (0x20)"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "ip_tos match ($tcflags)"
+}
+
+match_ip_ttl_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 ip_ttl 63 action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "ttl=63" -q
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "ttl=63,mf,frag=256" -q
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_fail $? "Matched on the wrong filter (no check on ttl)"
+
+	tc_check_packets "dev $h2 ingress" 101 2
+	check_err $? "Did not match on correct filter (ttl=63)"
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip "ttl=255" -q
+
+	tc_check_packets "dev $h2 ingress" 101 3
+	check_fail $? "Matched on a wrong filter (ttl=63)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (no check on ttl)"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "ip_ttl match ($tcflags)"
+}
+
+match_indev_test()
+{
+	RET=0
+
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		$tcflags indev $h1 dst_mac $h2mac action drop
+	tc filter add dev $h2 ingress protocol ip pref 2 handle 102 flower \
+		$tcflags indev $h2 dst_mac $h2mac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol ip pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+
+	log_test "indev match ($tcflags)"
+}
+
+# Unfortunately, mausezahn can't build MPLS headers when used in L2
+# mode, so we have this function to build Label Stack Entries.
+mpls_lse()
+{
+	local label=$1
+	local tc=$2
+	local bos=$3
+	local ttl=$4
+
+	printf "%02x %02x %02x %02x"                        \
+		$((label >> 12))                            \
+		$((label >> 4 & 0xff))                      \
+		$((((label & 0xf) << 4) + (tc << 1) + bos)) \
+		$ttl
+}
+
+match_mpls_label_test()
+{
+	local ethtype="88 47"; readonly ethtype
+	local pkt
+
+	RET=0
+
+	check_tc_mpls_support $h2 || return 0
+
+	tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
+		flower $tcflags mpls_label 0 action drop
+	tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
+		flower $tcflags mpls_label 1048575 action drop
+
+	pkt="$ethtype $(mpls_lse 1048575 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter (1048575)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (1048575)"
+
+	pkt="$ethtype $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_fail $? "Matched on a wrong filter (0)"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter (0)"
+
+	tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
+
+	log_test "mpls_label match ($tcflags)"
+}
+
+match_mpls_tc_test()
+{
+	local ethtype="88 47"; readonly ethtype
+	local pkt
+
+	RET=0
+
+	check_tc_mpls_support $h2 || return 0
+
+	tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
+		flower $tcflags mpls_tc 0 action drop
+	tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
+		flower $tcflags mpls_tc 7 action drop
+
+	pkt="$ethtype $(mpls_lse 0 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter (7)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (7)"
+
+	pkt="$ethtype $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_fail $? "Matched on a wrong filter (0)"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter (0)"
+
+	tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
+
+	log_test "mpls_tc match ($tcflags)"
+}
+
+match_mpls_bos_test()
+{
+	local ethtype="88 47"; readonly ethtype
+	local pkt
+
+	RET=0
+
+	check_tc_mpls_support $h2 || return 0
+
+	tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
+		flower $tcflags mpls_bos 0 action drop
+	tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
+		flower $tcflags mpls_bos 1 action drop
+
+	pkt="$ethtype $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter (1)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (1)"
+
+	# Need to add a second label to properly mark the Bottom of Stack
+	pkt="$ethtype $(mpls_lse 0 0 0 255) $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_fail $? "Matched on a wrong filter (0)"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter (0)"
+
+	tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
+
+	log_test "mpls_bos match ($tcflags)"
+}
+
+match_mpls_ttl_test()
+{
+	local ethtype="88 47"; readonly ethtype
+	local pkt
+
+	RET=0
+
+	check_tc_mpls_support $h2 || return 0
+
+	tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
+		flower $tcflags mpls_ttl 0 action drop
+	tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
+		flower $tcflags mpls_ttl 255 action drop
+
+	pkt="$ethtype $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_fail $? "Matched on a wrong filter (255)"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct filter (255)"
+
+	pkt="$ethtype $(mpls_lse 0 0 1 0)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 102 2
+	check_fail $? "Matched on a wrong filter (0)"
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct filter (0)"
+
+	tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
+
+	log_test "mpls_ttl match ($tcflags)"
+}
+
+match_mpls_lse_test()
+{
+	local ethtype="88 47"; readonly ethtype
+	local pkt
+
+	RET=0
+
+	check_tc_mpls_lse_stats $h2 || return 0
+
+	# Match on first LSE (minimal values for each field)
+	tc filter add dev $h2 ingress protocol mpls_uc pref 1 handle 101 \
+		flower $tcflags mpls lse depth 1 label 0 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 2 handle 102 \
+		flower $tcflags mpls lse depth 1 tc 0 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 3 handle 103 \
+		flower $tcflags mpls lse depth 1 bos 0 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 4 handle 104 \
+		flower $tcflags mpls lse depth 1 ttl 0 action continue
+
+	# Match on second LSE (maximal values for each field)
+	tc filter add dev $h2 ingress protocol mpls_uc pref 5 handle 105 \
+		flower $tcflags mpls lse depth 2 label 1048575 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 6 handle 106 \
+		flower $tcflags mpls lse depth 2 tc 7 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 7 handle 107 \
+		flower $tcflags mpls lse depth 2 bos 1 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 8 handle 108 \
+		flower $tcflags mpls lse depth 2 ttl 255 action continue
+
+	# Match on LSE depth
+	tc filter add dev $h2 ingress protocol mpls_uc pref 9 handle 109 \
+		flower $tcflags mpls lse depth 1 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 10 handle 110 \
+		flower $tcflags mpls lse depth 2 action continue
+	tc filter add dev $h2 ingress protocol mpls_uc pref 11 handle 111 \
+		flower $tcflags mpls lse depth 3 action continue
+
+	# Base packet, matched by all filters (except for stack depth 3)
+	pkt="$ethtype $(mpls_lse 0 0 0 0) $(mpls_lse 1048575 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Make a variant of the above packet, with a non-matching value
+	# for each LSE field
+
+	# Wrong label at depth 1
+	pkt="$ethtype $(mpls_lse 1 0 0 0) $(mpls_lse 1048575 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong TC at depth 1
+	pkt="$ethtype $(mpls_lse 0 1 0 0) $(mpls_lse 1048575 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong BOS at depth 1 (not adding a second LSE here since BOS is set
+	# in the first label, so anything that'd follow wouldn't be considered)
+	pkt="$ethtype $(mpls_lse 0 0 1 0)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong TTL at depth 1
+	pkt="$ethtype $(mpls_lse 0 0 0 1) $(mpls_lse 1048575 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong label at depth 2
+	pkt="$ethtype $(mpls_lse 0 0 0 0) $(mpls_lse 1048574 7 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong TC at depth 2
+	pkt="$ethtype $(mpls_lse 0 0 0 0) $(mpls_lse 1048575 6 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong BOS at depth 2 (adding a third LSE here since BOS isn't set in
+	# the second label)
+	pkt="$ethtype $(mpls_lse 0 0 0 0) $(mpls_lse 1048575 7 0 255)"
+	pkt="$pkt $(mpls_lse 0 0 1 255)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Wrong TTL at depth 2
+	pkt="$ethtype $(mpls_lse 0 0 0 0) $(mpls_lse 1048575 7 1 254)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	# Filters working at depth 1 should match all packets but one
+
+	tc_check_packets "dev $h2 ingress" 101 8
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 102 8
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 103 8
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 104 8
+	check_err $? "Did not match on correct filter"
+
+	# Filters working at depth 2 should match all packets but two (because
+	# of the test packet where the label stack depth is just one)
+
+	tc_check_packets "dev $h2 ingress" 105 7
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 106 7
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 107 7
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 108 7
+	check_err $? "Did not match on correct filter"
+
+	# Finally, verify the filters that only match on LSE depth
+
+	tc_check_packets "dev $h2 ingress" 109 9
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 110 8
+	check_err $? "Did not match on correct filter"
+
+	tc_check_packets "dev $h2 ingress" 111 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $h2 ingress protocol mpls_uc pref 11 handle 111 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 10 handle 110 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 9 handle 109 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 8 handle 108 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 7 handle 107 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 6 handle 106 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 5 handle 105 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 4 handle 104 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 3 handle 103 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 2 handle 102 flower
+	tc filter del dev $h2 ingress protocol mpls_uc pref 1 handle 101 flower
+
+	log_test "mpls lse match ($tcflags)"
+}
+
+match_erspan_opts_test()
+{
+	RET=0
+
+	check_tc_erspan_support $h2 || return 0
+
+	# h1 erspan setup
+	tunnel_create erspan1 erspan 192.0.2.1 192.0.2.2 dev $h1 seq key 1001 \
+		tos C ttl 64 erspan_ver 1 erspan 6789 # ERSPAN Type II
+	tunnel_create erspan2 erspan 192.0.2.1 192.0.2.2 dev $h1 seq key 1002 \
+		tos C ttl 64 erspan_ver 2 erspan_dir egress erspan_hwid 63 \
+		# ERSPAN Type III
+	ip link set dev erspan1 master v$h1
+	ip link set dev erspan2 master v$h1
+	# h2 erspan setup
+	ip link add ep-ex type erspan ttl 64 external # To collect tunnel info
+	ip link set ep-ex up
+	ip link set dev ep-ex master v$h2
+	tc qdisc add dev ep-ex clsact
+
+	# ERSPAN Type II [decap direction]
+	tc filter add dev ep-ex ingress protocol ip  handle 101 flower \
+		$tcflags enc_src_ip 192.0.2.1 enc_dst_ip 192.0.2.2 \
+		enc_key_id 1001 erspan_opts 1:6789:0:0 \
+		action drop
+	# ERSPAN Type III [decap direction]
+	tc filter add dev ep-ex ingress protocol ip  handle 102 flower \
+		$tcflags enc_src_ip 192.0.2.1 enc_dst_ip 192.0.2.2 \
+		enc_key_id 1002 erspan_opts 2:0:1:63 action drop
+
+	ep1mac=$(mac_get erspan1)
+	$MZ erspan1 -c 1 -p 64 -a $ep1mac -b $h2mac -t ip -q
+	tc_check_packets "dev ep-ex ingress" 101 1
+	check_err $? "ERSPAN Type II"
+
+	ep2mac=$(mac_get erspan2)
+	$MZ erspan2 -c 1 -p 64 -a $ep1mac -b $h2mac -t ip -q
+	tc_check_packets "dev ep-ex ingress" 102 1
+	check_err $? "ERSPAN Type III"
+
+	# h2 erspan cleanup
+	tc qdisc del dev ep-ex clsact
+	tunnel_destroy ep-ex
+	# h1 erspan cleanup
+	tunnel_destroy erspan2 # ERSPAN Type III
+	tunnel_destroy erspan1 # ERSPAN Type II
+
+	log_test "erspan_opts match ($tcflags)"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh b/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh
new file mode 100755
index 000000000000..3ca20df952eb
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_cfm.sh
@@ -0,0 +1,206 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_cfm_opcode match_cfm_level match_cfm_level_and_opcode"
+NUM_NETIFS=2
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+u8_to_hex()
+{
+	local u8=$1; shift
+
+	printf "%02x" $u8
+}
+
+generate_cfm_hdr()
+{
+	local mdl=$1; shift
+	local op=$1; shift
+	local flags=$1; shift
+	local tlv_offset=$1; shift
+
+	local cfm_hdr=$(:
+	               )"$(u8_to_hex $((mdl << 5))):"$( 	: MD level and Version
+	               )"$(u8_to_hex $op):"$(			: OpCode
+	               )"$(u8_to_hex $flags):"$(		: Flags
+	               )"$(u8_to_hex $tlv_offset)"$(		: TLV offset
+	               )
+
+	echo $cfm_hdr
+}
+
+match_cfm_opcode()
+{
+	local ethtype="89 02"; readonly ethtype
+	RET=0
+
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+	   flower cfm op 47 action drop
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+	   flower cfm op 43 action drop
+
+	pkt="$ethtype $(generate_cfm_hdr 7 47 0 32)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+	pkt="$ethtype $(generate_cfm_hdr 6 5 0 4)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct opcode"
+
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_err $? "Matched on the wrong opcode"
+
+	pkt="$ethtype $(generate_cfm_hdr 0 43 0 12)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Matched on the wrong opcode"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct opcode"
+
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+
+	log_test "CFM opcode match test"
+}
+
+match_cfm_level()
+{
+	local ethtype="89 02"; readonly ethtype
+	RET=0
+
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+	   flower cfm mdl 5 action drop
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+	   flower cfm mdl 3 action drop
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 103 \
+	   flower cfm mdl 0 action drop
+
+	pkt="$ethtype $(generate_cfm_hdr 5 42 0 12)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+	pkt="$ethtype $(generate_cfm_hdr 6 1 0 70)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+	pkt="$ethtype $(generate_cfm_hdr 0 1 0 70)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct level"
+
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_err $? "Matched on the wrong level"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Did not match on correct level"
+
+	pkt="$ethtype $(generate_cfm_hdr 3 0 0 4)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Matched on the wrong level"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct level"
+
+	tc_check_packets "dev $h2 ingress" 103 1
+	check_err $? "Matched on the wrong level"
+
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 103 flower
+
+	log_test "CFM level match test"
+}
+
+match_cfm_level_and_opcode()
+{
+	local ethtype="89 02"; readonly ethtype
+	RET=0
+
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 101 \
+	   flower cfm mdl 5 op 41 action drop
+	tc filter add dev $h2 ingress protocol cfm pref 1 handle 102 \
+	   flower cfm mdl 7 op 42 action drop
+
+	pkt="$ethtype $(generate_cfm_hdr 5 41 0 4)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+	pkt="$ethtype $(generate_cfm_hdr 7 3 0 4)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+	pkt="$ethtype $(generate_cfm_hdr 3 42 0 12)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Did not match on correct level and opcode"
+
+	tc_check_packets "dev $h2 ingress" 102 0
+	check_err $? "Matched on the wrong level and opcode"
+
+	pkt="$ethtype $(generate_cfm_hdr 7 42 0 12)"
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $h2mac "$pkt" -q
+
+	tc_check_packets "dev $h2 ingress" 101 1
+	check_err $? "Matched on the wrong level and opcode"
+
+	tc_check_packets "dev $h2 ingress" 102 1
+	check_err $? "Did not match on correct level and opcode"
+
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol cfm pref 1 handle 102 flower
+
+	log_test "CFM opcode and level match test"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh b/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh
new file mode 100755
index 000000000000..c2420bb72c12
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_l2_miss.sh
@@ -0,0 +1,357 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                             +----------------------+
+# | H1 (vrf)              |                             | H2 (vrf)             |
+# |    + $h1              |                             |              $h2 +   |
+# |    | 192.0.2.1/28     |                             |     192.0.2.2/28 |   |
+# |    | 2001:db8:1::1/64 |                             | 2001:db8:1::2/64 |   |
+# +----|------------------+                             +------------------|---+
+#      |                                                                   |
+# +----|-------------------------------------------------------------------|---+
+# | SW |                                                                   |   |
+# |  +-|-------------------------------------------------------------------|-+ |
+# |  | + $swp1                       BR                              $swp2 + | |
+# |  +-----------------------------------------------------------------------+ |
+# +----------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_l2_miss_unicast
+	test_l2_miss_multicast
+	test_l2_miss_ll_multicast
+	test_l2_miss_broadcast
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add name br1 up type bridge
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+test_l2_miss_unicast()
+{
+	local dmac=00:01:02:03:04:05
+	local dip=192.0.2.2
+	local sip=192.0.2.1
+
+	RET=0
+
+	# Unknown unicast.
+	tc filter add dev $swp2 egress protocol ipv4 handle 101 pref 1 \
+	   flower indev $swp1 l2_miss 1 dst_mac $dmac src_ip $sip \
+	   dst_ip $dip action pass
+	# Known unicast.
+	tc filter add dev $swp2 egress protocol ipv4 handle 102 pref 1 \
+	   flower indev $swp1 l2_miss 0 dst_mac $dmac src_ip $sip \
+	   dst_ip $dip action pass
+
+	# Before adding FDB entry.
+	$MZ $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Unknown unicast filter was not hit before adding FDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 0
+	check_err $? "Known unicast filter was hit before adding FDB entry"
+
+	# Adding FDB entry.
+	bridge fdb replace $dmac dev $swp2 master static
+
+	$MZ $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Unknown unicast filter was hit after adding FDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 1
+	check_err $? "Known unicast filter was not hit after adding FDB entry"
+
+	# Deleting FDB entry.
+	bridge fdb del $dmac dev $swp2 master static
+
+	$MZ $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 2
+	check_err $? "Unknown unicast filter was not hit after deleting FDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 1
+	check_err $? "Known unicast filter was hit after deleting FDB entry"
+
+	tc filter del dev $swp2 egress protocol ipv4 pref 1 handle 102 flower
+	tc filter del dev $swp2 egress protocol ipv4 pref 1 handle 101 flower
+
+	log_test "L2 miss - Unicast"
+}
+
+test_l2_miss_multicast_common()
+{
+	local proto=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local dmac=$1; shift
+	local mode=$1; shift
+	local name=$1; shift
+
+	RET=0
+
+	# Unregistered multicast.
+	tc filter add dev $swp2 egress protocol $proto handle 101 pref 1 \
+	   flower indev $swp1 l2_miss 1 src_ip $sip dst_ip $dip \
+	   action pass
+	# Registered multicast.
+	tc filter add dev $swp2 egress protocol $proto handle 102 pref 1 \
+	   flower indev $swp1 l2_miss 0 src_ip $sip dst_ip $dip \
+	   action pass
+
+	# Before adding MDB entry.
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Unregistered multicast filter was not hit before adding MDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 0
+	check_err $? "Registered multicast filter was hit before adding MDB entry"
+
+	# Adding MDB entry.
+	bridge mdb replace dev br1 port $swp2 grp $dip permanent
+
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Unregistered multicast filter was hit after adding MDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 1
+	check_err $? "Registered multicast filter was not hit after adding MDB entry"
+
+	# Deleting MDB entry.
+	bridge mdb del dev br1 port $swp2 grp $dip
+
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 2
+	check_err $? "Unregistered multicast filter was not hit after deleting MDB entry"
+
+	tc_check_packets "dev $swp2 egress" 102 1
+	check_err $? "Registered multicast filter was hit after deleting MDB entry"
+
+	tc filter del dev $swp2 egress protocol $proto pref 1 handle 102 flower
+	tc filter del dev $swp2 egress protocol $proto pref 1 handle 101 flower
+
+	log_test "L2 miss - Multicast ($name)"
+}
+
+test_l2_miss_multicast_ipv4()
+{
+	local proto="ipv4"
+	local sip=192.0.2.1
+	local dip=239.1.1.1
+	local dmac=01:00:5e:01:01:01
+	local mode="-4"
+	local name="IPv4"
+
+	test_l2_miss_multicast_common $proto $sip $dip $dmac $mode $name
+}
+
+test_l2_miss_multicast_ipv6()
+{
+	local proto="ipv6"
+	local sip=2001:db8:1::1
+	local dip=ff0e::1
+	local dmac=33:33:00:00:00:01
+	local mode="-6"
+	local name="IPv6"
+
+	test_l2_miss_multicast_common $proto $sip $dip $dmac $mode $name
+}
+
+test_l2_miss_multicast()
+{
+	# Configure $swp2 as a multicast router port so that it will forward
+	# both registered and unregistered multicast traffic.
+	bridge link set dev $swp2 mcast_router 2
+
+	# Set the Max Response Delay to 100 centiseconds (1 second) so that the
+	# bridge will start forwarding according to its MDB soon after a
+	# multicast querier is enabled.
+	ip link set dev br1 type bridge mcast_query_response_interval 100
+
+	# Forwarding according to MDB entries only takes place when the bridge
+	# detects that there is a valid querier in the network. Set the bridge
+	# as the querier and assign it a valid IPv6 link-local address to be
+	# used as the source address for MLD queries.
+	ip link set dev br1 type bridge mcast_querier 1
+	ip -6 address add fe80::1/64 nodad dev br1
+	sleep 10
+
+	test_l2_miss_multicast_ipv4
+	test_l2_miss_multicast_ipv6
+
+	ip -6 address del fe80::1/64 dev br1
+	ip link set dev br1 type bridge mcast_querier 0
+	ip link set dev br1 type bridge mcast_query_response_interval 1000
+	bridge link set dev $swp2 mcast_router 1
+}
+
+test_l2_miss_multicast_common2()
+{
+	local name=$1; shift
+	local dmac=$1; shift
+	local dip=224.0.0.1
+	local sip=192.0.2.1
+
+}
+
+test_l2_miss_ll_multicast_common()
+{
+	local proto=$1; shift
+	local dmac=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local mode=$1; shift
+	local name=$1; shift
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol $proto handle 101 pref 1 \
+	   flower indev $swp1 l2_miss 1 dst_mac $dmac src_ip $sip \
+	   dst_ip $dip action pass
+
+	$MZ $mode $h1 -a own -b $dmac -t ip -A $sip -B $dip -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Filter was not hit"
+
+	tc filter del dev $swp2 egress protocol $proto pref 1 handle 101 flower
+
+	log_test "L2 miss - Link-local multicast ($name)"
+}
+
+test_l2_miss_ll_multicast_ipv4()
+{
+	local proto=ipv4
+	local dmac=01:00:5e:00:00:01
+	local sip=192.0.2.1
+	local dip=224.0.0.1
+	local mode="-4"
+	local name="IPv4"
+
+	test_l2_miss_ll_multicast_common $proto $dmac $sip $dip $mode $name
+}
+
+test_l2_miss_ll_multicast_ipv6()
+{
+	local proto=ipv6
+	local dmac=33:33:00:00:00:01
+	local sip=2001:db8:1::1
+	local dip=ff02::1
+	local mode="-6"
+	local name="IPv6"
+
+	test_l2_miss_ll_multicast_common $proto $dmac $sip $dip $mode $name
+}
+
+test_l2_miss_ll_multicast()
+{
+	test_l2_miss_ll_multicast_ipv4
+	test_l2_miss_ll_multicast_ipv6
+}
+
+test_l2_miss_broadcast()
+{
+	local dmac=ff:ff:ff:ff:ff:ff
+	local smac=00:01:02:03:04:05
+
+	RET=0
+
+	tc filter add dev $swp2 egress protocol all handle 101 pref 1 \
+	   flower l2_miss 1 dst_mac $dmac src_mac $smac \
+	   action pass
+	tc filter add dev $swp2 egress protocol all handle 102 pref 1 \
+	   flower l2_miss 0 dst_mac $dmac src_mac $smac \
+	   action pass
+
+	$MZ $h1 -a $smac -b $dmac -c 1 -p 100 -q
+
+	tc_check_packets "dev $swp2 egress" 101 0
+	check_err $? "L2 miss filter was hit when should not"
+
+	tc_check_packets "dev $swp2 egress" 102 1
+	check_err $? "L2 no miss filter was not hit when should"
+
+	tc filter del dev $swp2 egress protocol all pref 1 handle 102 flower
+	tc filter del dev $swp2 egress protocol all pref 1 handle 101 flower
+
+	log_test "L2 miss - Broadcast"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh b/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh
new file mode 100755
index 000000000000..baed5e380dae
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_port_range.sh
@@ -0,0 +1,274 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                             +----------------------+
+# | H1 (vrf)              |                             | H2 (vrf)             |
+# |    + $h1              |                             |              $h2 +   |
+# |    | 192.0.2.1/28     |                             |     192.0.2.2/28 |   |
+# |    | 2001:db8:1::1/64 |                             | 2001:db8:1::2/64 |   |
+# +----|------------------+                             +------------------|---+
+#      |                                                                   |
+# +----|-------------------------------------------------------------------|---+
+# | SW |                                                                   |   |
+# |  +-|-------------------------------------------------------------------|-+ |
+# |  | + $swp1                       BR                              $swp2 + | |
+# |  +-----------------------------------------------------------------------+ |
+# +----------------------------------------------------------------------------+
+
+ALL_TESTS="
+	test_port_range_ipv4_udp
+	test_port_range_ipv4_tcp
+	test_port_range_ipv6_udp
+	test_port_range_ipv6_tcp
+	test_port_range_ipv4_udp_drop
+"
+
+NUM_NETIFS=4
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	ip link set dev br1 up
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	ip link set dev br1 down
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+	ip link del dev br1
+}
+
+__test_port_range()
+{
+	local proto=$1; shift
+	local ip_proto=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local mode=$1; shift
+	local name=$1; shift
+	local dmac=$(mac_get $h2)
+	local smac=$(mac_get $h1)
+	local sport_min=100
+	local sport_max=200
+	local sport_mid=$((sport_min + (sport_max - sport_min) / 2))
+	local dport_min=300
+	local dport_max=400
+	local dport_mid=$((dport_min + (dport_max - dport_min) / 2))
+
+	RET=0
+
+	tc filter add dev $swp1 ingress protocol $proto handle 101 pref 1 \
+		flower src_ip $sip dst_ip $dip ip_proto $ip_proto \
+		src_port $sport_min-$sport_max \
+		dst_port $dport_min-$dport_max \
+		action pass
+	tc filter add dev $swp2 egress protocol $proto handle 101 pref 1 \
+		flower src_ip $sip dst_ip $dip ip_proto $ip_proto \
+		src_port $sport_min-$sport_max \
+		dst_port $dport_min-$dport_max \
+		action drop
+
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_min,dp=$dport_min"
+	tc_check_packets "dev $swp1 ingress" 101 1
+	check_err $? "Ingress filter not hit with minimum ports"
+	tc_check_packets "dev $swp2 egress" 101 1
+	check_err $? "Egress filter not hit with minimum ports"
+
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_mid,dp=$dport_mid"
+	tc_check_packets "dev $swp1 ingress" 101 2
+	check_err $? "Ingress filter not hit with middle ports"
+	tc_check_packets "dev $swp2 egress" 101 2
+	check_err $? "Egress filter not hit with middle ports"
+
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_max,dp=$dport_max"
+	tc_check_packets "dev $swp1 ingress" 101 3
+	check_err $? "Ingress filter not hit with maximum ports"
+	tc_check_packets "dev $swp2 egress" 101 3
+	check_err $? "Egress filter not hit with maximum ports"
+
+	# Send traffic when both ports are out of range and when only one port
+	# is out of range.
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$((sport_min - 1)),dp=$dport_min"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$((sport_max + 1)),dp=$dport_min"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_min,dp=$((dport_min - 1))"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_min,dp=$((dport_max + 1))"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$((sport_max + 1)),dp=$((dport_max + 1))"
+	tc_check_packets "dev $swp1 ingress" 101 3
+	check_err $? "Ingress filter was hit when should not"
+	tc_check_packets "dev $swp2 egress" 101 3
+	check_err $? "Egress filter was hit when should not"
+
+	tc filter del dev $swp2 egress protocol $proto pref 1 handle 101 flower
+	tc filter del dev $swp1 ingress protocol $proto pref 1 handle 101 flower
+
+	log_test "Port range matching - $name"
+}
+
+test_port_range_ipv4_udp()
+{
+	local proto=ipv4
+	local ip_proto=udp
+	local sip=192.0.2.1
+	local dip=192.0.2.2
+	local mode="-4"
+	local name="IPv4 UDP"
+
+	__test_port_range $proto $ip_proto $sip $dip $mode "$name"
+}
+
+test_port_range_ipv4_tcp()
+{
+	local proto=ipv4
+	local ip_proto=tcp
+	local sip=192.0.2.1
+	local dip=192.0.2.2
+	local mode="-4"
+	local name="IPv4 TCP"
+
+	__test_port_range $proto $ip_proto $sip $dip $mode "$name"
+}
+
+test_port_range_ipv6_udp()
+{
+	local proto=ipv6
+	local ip_proto=udp
+	local sip=2001:db8:1::1
+	local dip=2001:db8:1::2
+	local mode="-6"
+	local name="IPv6 UDP"
+
+	__test_port_range $proto $ip_proto $sip $dip $mode "$name"
+}
+
+test_port_range_ipv6_tcp()
+{
+	local proto=ipv6
+	local ip_proto=tcp
+	local sip=2001:db8:1::1
+	local dip=2001:db8:1::2
+	local mode="-6"
+	local name="IPv6 TCP"
+
+	__test_port_range $proto $ip_proto $sip $dip $mode "$name"
+}
+
+test_port_range_ipv4_udp_drop()
+{
+	local proto=ipv4
+	local ip_proto=udp
+	local sip=192.0.2.1
+	local dip=192.0.2.2
+	local mode="-4"
+	local name="IPv4 UDP Drop"
+	local dmac=$(mac_get $h2)
+	local smac=$(mac_get $h1)
+	local sport_min=2000
+	local sport_max=3000
+	local sport_mid=$((sport_min + (sport_max - sport_min) / 2))
+	local dport=5000
+
+	RET=0
+
+	tc filter add dev $swp1 ingress protocol $proto handle 101 pref 1 \
+		flower src_ip $sip dst_ip $dip ip_proto $ip_proto \
+		src_port $sport_min-$sport_max \
+		dst_port $dport \
+		action drop
+
+	# Test ports outside range - should pass
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$((sport_min - 1)),dp=$dport"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$((sport_max + 1)),dp=$dport"
+
+	# Test ports inside range - should be dropped
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_min,dp=$dport"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_mid,dp=$dport"
+	$MZ $mode $h1 -c 1 -q -p 100 -a $smac -b $dmac -A $sip -B $dip \
+		-t $ip_proto "sp=$sport_max,dp=$dport"
+
+	tc_check_packets "dev $swp1 ingress" 101 3
+	check_err $? "Filter did not drop the expected number of packets"
+
+	tc filter del dev $swp1 ingress protocol $proto pref 1 handle 101 flower
+
+	log_test "Port range matching - $name"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_flower_router.sh b/tools/testing/selftests/net/forwarding/tc_flower_router.sh
new file mode 100755
index 000000000000..4aee9c9e69f6
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_flower_router.sh
@@ -0,0 +1,172 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="match_indev_egress_test"
+NUM_NETIFS=6
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.1.1/24
+
+	ip route add 192.0.2.0/24 vrf v$h1 nexthop via 192.0.1.2
+	ip route add 192.0.3.0/24 vrf v$h1 nexthop via 192.0.1.2
+}
+
+h1_destroy()
+{
+	ip route del 192.0.3.0/24 vrf v$h1
+	ip route del 192.0.2.0/24 vrf v$h1
+
+	simple_if_fini $h1 192.0.1.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.1/24
+
+	ip route add 192.0.1.0/24 vrf v$h2 nexthop via 192.0.2.2
+	ip route add 192.0.3.0/24 vrf v$h2 nexthop via 192.0.2.2
+}
+
+h2_destroy()
+{
+	ip route del 192.0.3.0/24 vrf v$h2
+	ip route del 192.0.1.0/24 vrf v$h2
+
+	simple_if_fini $h2 192.0.2.1/24
+}
+
+h3_create()
+{
+	simple_if_init $h3 192.0.3.1/24
+
+	ip route add 192.0.1.0/24 vrf v$h3 nexthop via 192.0.3.2
+	ip route add 192.0.2.0/24 vrf v$h3 nexthop via 192.0.3.2
+}
+
+h3_destroy()
+{
+	ip route del 192.0.2.0/24 vrf v$h3
+	ip route del 192.0.1.0/24 vrf v$h3
+
+	simple_if_fini $h3 192.0.3.1/24
+}
+
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+	ip link set dev $rp3 up
+
+	tc qdisc add dev $rp3 clsact
+
+	ip address add 192.0.1.2/24 dev $rp1
+	ip address add 192.0.2.2/24 dev $rp2
+	ip address add 192.0.3.2/24 dev $rp3
+}
+
+router_destroy()
+{
+	ip address del 192.0.3.2/24 dev $rp3
+	ip address del 192.0.2.2/24 dev $rp2
+	ip address del 192.0.1.2/24 dev $rp1
+
+	tc qdisc del dev $rp3 clsact
+
+	ip link set dev $rp3 down
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+match_indev_egress_test()
+{
+	RET=0
+
+	tc filter add dev $rp3 egress protocol ip pref 1 handle 101 flower \
+		$tcflags indev $rp1 dst_ip 192.0.3.1 action drop
+	tc filter add dev $rp3 egress protocol ip pref 2 handle 102 flower \
+		$tcflags indev $rp2 dst_ip 192.0.3.1 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $rp1mac -A 192.0.1.1 -B 192.0.3.1 \
+		-t ip -q
+
+	tc_check_packets "dev $rp3 egress" 102 1
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $rp3 egress" 101 1
+	check_err $? "Did not match on correct filter"
+
+	$MZ $h2 -c 1 -p 64 -a $h2mac -b $rp2mac -A 192.0.2.1 -B 192.0.3.1 \
+		-t ip -q
+
+	tc_check_packets "dev $rp3 egress" 101 2
+	check_fail $? "Matched on a wrong filter"
+
+	tc_check_packets "dev $rp3 egress" 102 1
+	check_err $? "Did not match on correct filter"
+
+	tc filter del dev $rp3 egress protocol ip pref 2 handle 102 flower
+	tc filter del dev $rp3 egress protocol ip pref 1 handle 101 flower
+
+	log_test "indev egress match ($tcflags)"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	h2=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	h3=${NETIFS[p5]}
+	rp3=${NETIFS[p6]}
+
+	h1mac=$(mac_get $h1)
+	rp1mac=$(mac_get $rp1)
+	h2mac=$(mac_get $h2)
+	rp2mac=$(mac_get $rp2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	h3_create
+
+	router_create
+
+	forwarding_enable
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	forwarding_restore
+
+	router_destroy
+
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_mpls_l2vpn.sh b/tools/testing/selftests/net/forwarding/tc_mpls_l2vpn.sh
new file mode 100755
index 000000000000..03743f04e178
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_mpls_l2vpn.sh
@@ -0,0 +1,192 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+
+# | H1 (v$h1)             |
+# | 192.0.2.1/24          |
+# | 2001:db8::1/124       |
+# |                 + $h1 |
+# +-----------------|-----+
+#                   |
+#                   | (Plain Ethernet traffic)
+#                   |
+# +-----------------|-----------------------------------------+
+# | LER1            + $edge1                                  |
+# |                     -ingress:                             |
+# |                       -encapsulate Ethernet into MPLS     |
+# |                       -add outer Ethernet header          |
+# |                       -redirect to $mpls1 (egress)        |
+# |                                                           |
+# |                 + $mpls1                                  |
+# |                 |   -ingress:                             |
+# |                 |     -remove outer Ethernet header       |
+# |                 |     -remove MPLS header                 |
+# |                 |     -redirect to $edge1 (egress)        |
+# +-----------------|-----------------------------------------+
+#                   |
+#                   | (Ethernet over MPLS traffic)
+#                   |
+# +-----------------|-----------------------------------------+
+# | LER2            + $mpls2                                  |
+# |                     -ingress:                             |
+# |                       -remove outer Ethernet header       |
+# |                       -remove MPLS header                 |
+# |                       -redirect to $edge2 (egress)        |
+# |                                                           |
+# |                 + $edge2                                  |
+# |                 |   -ingress:                             |
+# |                 |     -encapsulate Ethernet into MPLS     |
+# |                 |     -add outer Ethernet header          |
+# |                 |     -redirect to $mpls2 (egress)        |
+# +-----------------|-----------------------------------------|
+#                   |
+#                   | (Plain Ethernet traffic)
+#                   |
+# +-----------------|-----+
+# | H2 (v$h2)       |     |
+# |                 + $h2 |
+# | 192.0.2.2/24          |
+# | 2001:db8::2/124       |
+# +-----------------------+
+#
+# LER1 and LER2 logically represent two different routers. However, no VRF is
+# created for them, as they don't do any IP routing.
+
+ALL_TESTS="mpls_forward_eth"
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8::1/124
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8::1/124
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8::2/124
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8::2/124
+}
+
+ler1_create()
+{
+	tc qdisc add dev $edge1 ingress
+	tc filter add dev $edge1 ingress                            \
+	   matchall                                                 \
+	   action mpls mac_push label 102                           \
+	   action vlan push_eth dst_mac $mpls2mac src_mac $mpls1mac \
+	   action mirred egress redirect dev $mpls1
+	ip link set dev $edge1 up
+
+	tc qdisc add dev $mpls1 ingress
+	tc filter add dev $mpls1 ingress            \
+	   protocol mpls_uc                         \
+	   flower mpls_label 101                    \
+	   action vlan pop_eth                      \
+	   action mpls pop protocol teb             \
+	   action mirred egress redirect dev $edge1
+	ip link set dev $mpls1 up
+}
+
+ler1_destroy()
+{
+	ip link set dev $mpls1 down
+	tc qdisc del dev $mpls1 ingress
+
+	ip link set dev $edge1 down
+	tc qdisc del dev $edge1 ingress
+}
+
+ler2_create()
+{
+	tc qdisc add dev $edge2 ingress
+	tc filter add dev $edge2 ingress                            \
+	   matchall                                                 \
+	   action mpls mac_push label 101                           \
+	   action vlan push_eth dst_mac $mpls1mac src_mac $mpls2mac \
+	   action mirred egress redirect dev $mpls2
+	ip link set dev $edge2 up
+
+	tc qdisc add dev $mpls2 ingress
+	tc filter add dev $mpls2 ingress            \
+	   protocol mpls_uc                         \
+	   flower mpls_label 102                    \
+	   action vlan pop_eth                      \
+	   action mpls pop protocol teb             \
+	   action mirred egress redirect dev $edge2
+	ip link set dev $mpls2 up
+}
+
+ler2_destroy()
+{
+	ip link set dev $mpls2 down
+	tc qdisc del dev $mpls2 ingress
+
+	ip link set dev $edge2 down
+	tc qdisc del dev $edge2 ingress
+}
+
+mpls_forward_eth()
+{
+	ping_test $h1 192.0.2.2
+	ping6_test $h1 2001:db8::2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	edge1=${NETIFS[p2]}
+
+	mpls1=${NETIFS[p3]}
+	mpls2=${NETIFS[p4]}
+
+	edge2=${NETIFS[p5]}
+	h2=${NETIFS[p6]}
+
+	mpls1mac=$(mac_get $mpls1)
+	mpls2mac=$(mac_get $mpls2)
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	ler1_create
+	ler2_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ler2_destroy
+	ler1_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_police.sh b/tools/testing/selftests/net/forwarding/tc_police.sh
new file mode 100755
index 000000000000..509fdedfcfa1
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_police.sh
@@ -0,0 +1,441 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test tc-police action.
+#
+# +---------------------------------+
+# | H1 (vrf)                        |
+# |    + $h1                        |
+# |    | 192.0.2.1/24               |
+# |    |                            |
+# |    |  default via 192.0.2.2     |
+# +----|----------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# | SW |                                                                      |
+# |    + $rp1                                                                 |
+# |        192.0.2.2/24                                                       |
+# |                                                                           |
+# |        198.51.100.2/24                           203.0.113.2/24           |
+# |    + $rp2                                    + $rp3                       |
+# |    |                                         |                            |
+# +----|-----------------------------------------|----------------------------+
+#      |                                         |
+# +----|----------------------------+       +----|----------------------------+
+# |    |  default via 198.51.100.2  |       |    |  default via 203.0.113.2   |
+# |    |                            |       |    |                            |
+# |    | 198.51.100.1/24            |       |    | 203.0.113.1/24             |
+# |    + $h2                        |       |    + $h3                        |
+# | H2 (vrf)                        |       | H3 (vrf)                        |
+# +---------------------------------+       +---------------------------------+
+
+ALL_TESTS="
+	police_rx_test
+	police_tx_test
+	police_shared_test
+	police_rx_mirror_test
+	police_tx_mirror_test
+	police_pps_rx_test
+	police_pps_tx_test
+	police_mtu_rx_test
+	police_mtu_tx_test
+"
+NUM_NETIFS=6
+source tc_common.sh
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+
+	ip -4 route add default vrf v$h1 nexthop via 192.0.2.2
+}
+
+h1_destroy()
+{
+	ip -4 route del default vrf v$h1 nexthop via 192.0.2.2
+
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 198.51.100.1/24
+
+	ip -4 route add default vrf v$h2 nexthop via 198.51.100.2
+
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+
+	ip -4 route del default vrf v$h2 nexthop via 198.51.100.2
+
+	simple_if_fini $h2 198.51.100.1/24
+}
+
+h3_create()
+{
+	simple_if_init $h3 203.0.113.1/24
+
+	ip -4 route add default vrf v$h3 nexthop via 203.0.113.2
+
+	tc qdisc add dev $h3 clsact
+}
+
+h3_destroy()
+{
+	tc qdisc del dev $h3 clsact
+
+	ip -4 route del default vrf v$h3 nexthop via 203.0.113.2
+
+	simple_if_fini $h3 203.0.113.1/24
+}
+
+router_create()
+{
+	ip link set dev $rp1 up
+	ip link set dev $rp2 up
+	ip link set dev $rp3 up
+
+	__addr_add_del $rp1 add 192.0.2.2/24
+	__addr_add_del $rp2 add 198.51.100.2/24
+	__addr_add_del $rp3 add 203.0.113.2/24
+
+	tc qdisc add dev $rp1 clsact
+	tc qdisc add dev $rp2 clsact
+}
+
+router_destroy()
+{
+	tc qdisc del dev $rp2 clsact
+	tc qdisc del dev $rp1 clsact
+
+	__addr_add_del $rp3 del 203.0.113.2/24
+	__addr_add_del $rp2 del 198.51.100.2/24
+	__addr_add_del $rp1 del 192.0.2.2/24
+
+	ip link set dev $rp3 down
+	ip link set dev $rp2 down
+	ip link set dev $rp1 down
+}
+
+police_common_test()
+{
+	local test_name=$1; shift
+
+	RET=0
+
+	# Rule to measure bandwidth on ingress of $h2
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action drop
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+	local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+	sleep 10
+	local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+	local er=$((10 * 1000 * 1000))
+	local nr=$(rate $t0 $t1 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-10 <= nr_pct && nr_pct <= 10))
+	check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+	log_test "$test_name"
+
+	kill_process %%
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_test()
+{
+	# Rule to police traffic destined to $h2 on ingress of $rp1
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police rate 10mbit burst 16k conform-exceed drop/ok
+
+	police_common_test "police on rx"
+
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_tx_test()
+{
+	# Rule to police traffic destined to $h2 on egress of $rp2
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police rate 10mbit burst 16k conform-exceed drop/ok
+
+	police_common_test "police on tx"
+
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+police_shared_common_test()
+{
+	local dport=$1; shift
+	local test_name=$1; shift
+
+	RET=0
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=$dport -p 1000 -c 0 -q &
+
+	local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+	sleep 10
+	local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+	local er=$((10 * 1000 * 1000))
+	local nr=$(rate $t0 $t1 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-10 <= nr_pct && nr_pct <= 10))
+	check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+	log_test "$test_name"
+
+	kill_process %%
+}
+
+police_shared_test()
+{
+	# Rule to measure bandwidth on ingress of $h2
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp src_port 12345 \
+		action drop
+
+	# Rule to police traffic destined to $h2 on ingress of $rp1
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police rate 10mbit burst 16k conform-exceed drop/ok \
+		index 10
+
+	# Rule to police a different flow destined to $h2 on egress of $rp2
+	# using same policer
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 22222 \
+		action police index 10
+
+	police_shared_common_test 54321 "police with shared policer - rx"
+
+	police_shared_common_test 22222 "police with shared policer - tx"
+
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_mirror_common_test()
+{
+	local pol_if=$1; shift
+	local dir=$1; shift
+	local test_name=$1; shift
+
+	RET=0
+
+	# Rule to measure bandwidth on ingress of $h2
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action drop
+
+	# Rule to measure bandwidth of mirrored traffic on ingress of $h3
+	tc filter add dev $h3 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action drop
+
+	# Rule to police traffic destined to $h2 and mirror to $h3
+	tc filter add dev $pol_if $dir protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police rate 10mbit burst 16k conform-exceed drop/pipe \
+		action mirred egress mirror dev $rp3
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+	local t0=$(tc_rule_stats_get $h2 1 ingress .bytes)
+	sleep 10
+	local t1=$(tc_rule_stats_get $h2 1 ingress .bytes)
+
+	local er=$((10 * 1000 * 1000))
+	local nr=$(rate $t0 $t1 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-10 <= nr_pct && nr_pct <= 10))
+	check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+	local t0=$(tc_rule_stats_get $h3 1 ingress .bytes)
+	sleep 10
+	local t1=$(tc_rule_stats_get $h3 1 ingress .bytes)
+
+	local er=$((10 * 1000 * 1000))
+	local nr=$(rate $t0 $t1 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-10 <= nr_pct && nr_pct <= 10))
+	check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+	log_test "$test_name"
+
+	kill_process %%
+	tc filter del dev $pol_if $dir protocol ip pref 1 handle 101 flower
+	tc filter del dev $h3 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_rx_mirror_test()
+{
+	police_mirror_common_test $rp1 ingress "police rx and mirror"
+}
+
+police_tx_mirror_test()
+{
+	police_mirror_common_test $rp2 egress "police tx and mirror"
+}
+
+police_pps_common_test()
+{
+	local test_name=$1; shift
+
+	RET=0
+
+	# Rule to measure bandwidth on ingress of $h2
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action drop
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=54321 -p 1000 -c 0 -q &
+
+	local t0=$(tc_rule_stats_get $h2 1 ingress .packets)
+	sleep 10
+	local t1=$(tc_rule_stats_get $h2 1 ingress .packets)
+
+	local er=$((2000))
+	local nr=$(packets_rate $t0 $t1 10)
+	local nr_pct=$((100 * (nr - er) / er))
+	((-10 <= nr_pct && nr_pct <= 10))
+	check_err $? "Expected rate $(humanize $er), got $(humanize $nr), which is $nr_pct% off. Required accuracy is +-10%."
+
+	log_test "$test_name"
+
+	kill_process %%
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_pps_rx_test()
+{
+	# Rule to police traffic destined to $h2 on ingress of $rp1
+	tc filter add dev $rp1 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok
+
+	police_pps_common_test "police pps on rx"
+
+	tc filter del dev $rp1 ingress protocol ip pref 1 handle 101 flower
+}
+
+police_pps_tx_test()
+{
+	# Rule to police traffic destined to $h2 on egress of $rp2
+	tc filter add dev $rp2 egress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police pkts_rate 2000 pkts_burst 400 conform-exceed drop/ok
+
+	police_pps_common_test "police pps on tx"
+
+	tc filter del dev $rp2 egress protocol ip pref 1 handle 101 flower
+}
+
+police_mtu_common_test() {
+	RET=0
+
+	local test_name=$1; shift
+	local dev=$1; shift
+	local direction=$1; shift
+
+	tc filter add dev $dev $direction protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action police mtu 1042 conform-exceed drop/ok
+
+	# to count "conform" packets
+	tc filter add dev $h2 ingress protocol ip pref 1 handle 101 flower \
+		dst_ip 198.51.100.1 ip_proto udp dst_port 54321 \
+		action drop
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=54321 -p 1001 -c 10 -q
+
+	mausezahn $h1 -a own -b $(mac_get $rp1) -A 192.0.2.1 -B 198.51.100.1 \
+		-t udp sp=12345,dp=54321 -p 1000 -c 3 -q
+
+	tc_check_packets "dev $dev $direction" 101 13
+	check_err $? "wrong packet counter"
+
+	# "exceed" packets
+	local overlimits_t0=$(tc_rule_stats_get ${dev} 1 ${direction} .overlimits)
+	test ${overlimits_t0} = 10
+	check_err $? "wrong overlimits, expected 10 got ${overlimits_t0}"
+
+	# "conform" packets
+	tc_check_packets "dev $h2 ingress" 101 3
+	check_err $? "forwarding error"
+
+	tc filter del dev $h2 ingress protocol ip pref 1 handle 101 flower
+	tc filter del dev $dev $direction protocol ip pref 1 handle 101 flower
+
+	log_test "$test_name"
+}
+
+police_mtu_rx_test()
+{
+	police_mtu_common_test "police mtu (rx)" $rp1 ingress
+}
+
+police_mtu_tx_test()
+{
+	police_mtu_common_test "police mtu (tx)" $rp2 egress
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	rp1=${NETIFS[p2]}
+
+	rp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	h3_create
+	router_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	router_destroy
+	h3_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_shblocks.sh b/tools/testing/selftests/net/forwarding/tc_shblocks.sh
new file mode 100755
index 000000000000..772e00ac3230
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_shblocks.sh
@@ -0,0 +1,152 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="shared_block_test match_indev_test"
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.1/24
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.1/24
+}
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.2/24
+	tc qdisc add dev $swp1 ingress_block 22 egress_block 23 clsact
+
+	simple_if_init $swp2 192.0.2.2/24
+	tc qdisc add dev $swp2 ingress_block 22 egress_block 23 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	simple_if_fini $swp2 192.0.2.2/24
+
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1 192.0.2.2/24
+}
+
+shared_block_test()
+{
+	RET=0
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		$tcflags dst_ip 192.0.2.2 action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "block 22" 101 1
+	check_err $? "Did not match first incoming packet on a block"
+
+	$MZ $h2 -c 1 -p 64 -a $h2mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "block 22" 101 2
+	check_err $? "Did not match second incoming packet on a block"
+
+	tc filter del block 22 protocol ip pref 1 handle 101 flower
+
+	log_test "shared block ($tcflags)"
+}
+
+match_indev_test()
+{
+	RET=0
+
+	tc filter add block 22 protocol ip pref 1 handle 101 flower \
+		$tcflags indev $swp1 dst_mac $swmac action drop
+	tc filter add block 22 protocol ip pref 2 handle 102 flower \
+		$tcflags indev $swp2 dst_mac $swmac action drop
+
+	$MZ $h1 -c 1 -p 64 -a $h1mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "block 22" 101 1
+	check_err $? "Did not match first incoming packet on a block"
+
+	$MZ $h2 -c 1 -p 64 -a $h2mac -b $swmac -A 192.0.2.1 -B 192.0.2.2 \
+		-t ip -q
+
+	tc_check_packets "block 22" 102 1
+	check_err $? "Did not match second incoming packet on a block"
+
+	tc filter del block 22 protocol ip pref 1 handle 101 flower
+	tc filter del block 22 protocol ip pref 2 handle 102 flower
+
+	log_test "indev match ($tcflags)"
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	swmac=$(mac_get $swp1)
+	swp2origmac=$(mac_get $swp2)
+	ip link set $swp2 address $swmac
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	ip link set $swp2 address $swp2origmac
+}
+
+check_tc_shblock_support
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_taprio.sh b/tools/testing/selftests/net/forwarding/tc_taprio.sh
new file mode 100755
index 000000000000..8992aeabfe0b
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_taprio.sh
@@ -0,0 +1,421 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS=" \
+	test_clock_jump_backward \
+	test_taprio_after_ptp \
+	test_max_sdu \
+	test_clock_jump_backward_forward \
+"
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+source tsn_lib.sh
+
+require_command python3
+
+# The test assumes the usual topology from the README, where h1 is connected to
+# swp1, h2 to swp2, and swp1 and swp2 are together in a bridge.
+# Additional assumption: h1 and h2 use the same PHC, and so do swp1 and swp2.
+# By synchronizing h1 to swp1 via PTP, h2 is also implicitly synchronized to
+# swp1 (and both to CLOCK_REALTIME).
+h1=${NETIFS[p1]}
+swp1=${NETIFS[p2]}
+swp2=${NETIFS[p3]}
+h2=${NETIFS[p4]}
+
+UDS_ADDRESS_H1="/var/run/ptp4l_h1"
+UDS_ADDRESS_SWP1="/var/run/ptp4l_swp1"
+
+H1_IPV4="192.0.2.1"
+H2_IPV4="192.0.2.2"
+H1_IPV6="2001:db8:1::1"
+H2_IPV6="2001:db8:1::2"
+
+# Tunables
+NUM_PKTS=100
+STREAM_VID=10
+STREAM_PRIO_1=6
+STREAM_PRIO_2=5
+STREAM_PRIO_3=4
+# PTP uses TC 0
+ALL_GATES=$((1 << 0 | 1 << STREAM_PRIO_1 | 1 << STREAM_PRIO_2))
+# Use a conservative cycle of 10 ms to allow the test to still pass when the
+# kernel has some extra overhead like lockdep etc
+CYCLE_TIME_NS=10000000
+# Create two Gate Control List entries, one OPEN and one CLOSE, of equal
+# durations
+GATE_DURATION_NS=$((CYCLE_TIME_NS / 2))
+# Give 2/3 of the cycle time to user space and 1/3 to the kernel
+FUDGE_FACTOR=$((CYCLE_TIME_NS / 3))
+# Shift the isochron base time by half the gate time, so that packets are
+# always received by swp1 close to the middle of the time slot, to minimize
+# inaccuracies due to network sync
+SHIFT_TIME_NS=$((GATE_DURATION_NS / 2))
+
+path_delay=
+
+h1_create()
+{
+	simple_if_init $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 $H1_IPV4/24 $H1_IPV6/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 $H2_IPV4/24 $H2_IPV6/64
+}
+
+switch_create()
+{
+	local h2_mac_addr=$(mac_get $h2)
+
+	ip link set $swp1 up
+	ip link set $swp2 up
+
+	ip link add br0 type bridge vlan_filtering 1
+	ip link set $swp1 master br0
+	ip link set $swp2 master br0
+	ip link set br0 up
+
+	bridge vlan add dev $swp2 vid $STREAM_VID
+	bridge vlan add dev $swp1 vid $STREAM_VID
+	bridge fdb add dev $swp2 \
+		$h2_mac_addr vlan $STREAM_VID static master
+}
+
+switch_destroy()
+{
+	ip link del br0
+}
+
+ptp_setup()
+{
+	# Set up swp1 as a master PHC for h1, synchronized to the local
+	# CLOCK_REALTIME.
+	phc2sys_start $UDS_ADDRESS_SWP1
+	ptp4l_start $h1 true $UDS_ADDRESS_H1
+	ptp4l_start $swp1 false $UDS_ADDRESS_SWP1
+}
+
+ptp_cleanup()
+{
+	ptp4l_stop $swp1
+	ptp4l_stop $h1
+	phc2sys_stop
+}
+
+txtime_setup()
+{
+	local if_name=$1
+
+	tc qdisc add dev $if_name clsact
+	# Classify PTP on TC 7 and isochron on TC 6
+	tc filter add dev $if_name egress protocol 0x88f7 \
+		flower action skbedit priority 7
+	tc filter add dev $if_name egress protocol 802.1Q \
+		flower vlan_ethtype 0xdead action skbedit priority 6
+	tc qdisc add dev $if_name handle 100: parent root mqprio num_tc 8 \
+		queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
+		map 0 1 2 3 4 5 6 7 \
+		hw 1
+	# Set up TC 5, 6, 7 for SO_TXTIME. tc-mqprio queues count from 1.
+	tc qdisc replace dev $if_name parent 100:$((STREAM_PRIO_1 + 1)) etf \
+		clockid CLOCK_TAI offload delta $FUDGE_FACTOR
+	tc qdisc replace dev $if_name parent 100:$((STREAM_PRIO_2 + 1)) etf \
+		clockid CLOCK_TAI offload delta $FUDGE_FACTOR
+	tc qdisc replace dev $if_name parent 100:$((STREAM_PRIO_3 + 1)) etf \
+		clockid CLOCK_TAI offload delta $FUDGE_FACTOR
+}
+
+txtime_cleanup()
+{
+	local if_name=$1
+
+	tc qdisc del dev $if_name clsact
+	tc qdisc del dev $if_name root
+}
+
+taprio_replace()
+{
+	local if_name="$1"; shift
+	local extra_args="$1"; shift
+
+	# STREAM_PRIO_1 always has an open gate.
+	# STREAM_PRIO_2 has a gate open for GATE_DURATION_NS (half the cycle time)
+	# STREAM_PRIO_3 always has a closed gate.
+	tc qdisc replace dev $if_name root stab overhead 24 taprio num_tc 8 \
+		queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \
+		map 0 1 2 3 4 5 6 7 \
+		sched-entry S $(printf "%x" $ALL_GATES) $GATE_DURATION_NS \
+		sched-entry S $(printf "%x" $((ALL_GATES & ~(1 << STREAM_PRIO_2)))) $GATE_DURATION_NS \
+		base-time 0 flags 0x2 $extra_args
+	taprio_wait_for_admin $if_name
+}
+
+taprio_cleanup()
+{
+	local if_name=$1
+
+	tc qdisc del dev $if_name root
+}
+
+probe_path_delay()
+{
+	local isochron_dat="$(mktemp)"
+	local received
+
+	log_info "Probing path delay"
+
+	isochron_do "$h1" "$h2" "$UDS_ADDRESS_H1" "" 0 \
+		"$CYCLE_TIME_NS" "" "" "$NUM_PKTS" \
+		"$STREAM_VID" "$STREAM_PRIO_1" "" "$isochron_dat"
+
+	received=$(isochron_report_num_received "$isochron_dat")
+	if [ "$received" != "$NUM_PKTS" ]; then
+		echo "Cannot establish basic data path between $h1 and $h2"
+		exit $ksft_fail
+	fi
+
+	printf "pdelay = {}\n" > isochron_data.py
+	isochron report --input-file "$isochron_dat" \
+		--printf-format "pdelay[%u] = %d - %d\n" \
+		--printf-args "qRT" \
+		>> isochron_data.py
+	cat <<-'EOF' > isochron_postprocess.py
+	#!/usr/bin/env python3
+
+	from isochron_data import pdelay
+	import numpy as np
+
+	w = np.array(list(pdelay.values()))
+	print("{}".format(np.max(w)))
+	EOF
+	path_delay=$(python3 ./isochron_postprocess.py)
+
+	log_info "Path delay from $h1 to $h2 estimated at $path_delay ns"
+
+	if [ "$path_delay" -gt "$GATE_DURATION_NS" ]; then
+		echo "Path delay larger than gate duration, aborting"
+		exit $ksft_fail
+	fi
+
+	rm -f ./isochron_data.py 2> /dev/null
+	rm -f ./isochron_postprocess.py 2> /dev/null
+	rm -f "$isochron_dat" 2> /dev/null
+}
+
+setup_prepare()
+{
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+
+	txtime_setup $h1
+
+	# Temporarily set up PTP just to probe the end-to-end path delay.
+	ptp_setup
+	probe_path_delay
+	ptp_cleanup
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	isochron_recv_stop
+	txtime_cleanup $h1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+run_test()
+{
+	local base_time=$1; shift
+	local stream_prio=$1; shift
+	local expected_delay=$1; shift
+	local should_fail=$1; shift
+	local test_name=$1; shift
+	local isochron_dat="$(mktemp)"
+	local received
+	local median_delay
+
+	RET=0
+
+	# Set the shift time equal to the cycle time, which effectively
+	# cancels the default advance time. Packets won't be sent early in
+	# software, which ensures that they won't prematurely enter through
+	# the open gate in __test_out_of_band(). Also, the gate is open for
+	# long enough that this won't cause a problem in __test_in_band().
+	isochron_do "$h1" "$h2" "$UDS_ADDRESS_H1" "" "$base_time" \
+		"$CYCLE_TIME_NS" "$SHIFT_TIME_NS" "$GATE_DURATION_NS" \
+		"$NUM_PKTS" "$STREAM_VID" "$stream_prio" "" "$isochron_dat"
+
+	received=$(isochron_report_num_received "$isochron_dat")
+	[ "$received" = "$NUM_PKTS" ]
+	check_err_fail $should_fail $? "Reception of $NUM_PKTS packets"
+
+	if [ $should_fail = 0 ] && [ "$received" = "$NUM_PKTS" ]; then
+		printf "pdelay = {}\n" > isochron_data.py
+		isochron report --input-file "$isochron_dat" \
+			--printf-format "pdelay[%u] = %d - %d\n" \
+			--printf-args "qRT" \
+			>> isochron_data.py
+		cat <<-'EOF' > isochron_postprocess.py
+		#!/usr/bin/env python3
+
+		from isochron_data import pdelay
+		import numpy as np
+
+		w = np.array(list(pdelay.values()))
+		print("{}".format(int(np.median(w))))
+		EOF
+		median_delay=$(python3 ./isochron_postprocess.py)
+
+		# If the condition below is true, packets were delayed by a closed gate
+		[ "$median_delay" -gt $((path_delay + expected_delay)) ]
+		check_fail $? "Median delay $median_delay is greater than expected delay $expected_delay plus path delay $path_delay"
+
+		# If the condition below is true, packets were sent expecting them to
+		# hit a closed gate in the switch, but were not delayed
+		[ "$expected_delay" -gt 0 ] && [ "$median_delay" -lt "$expected_delay" ]
+		check_fail $? "Median delay $median_delay is less than expected delay $expected_delay"
+	fi
+
+	log_test "$test_name"
+
+	rm -f ./isochron_data.py 2> /dev/null
+	rm -f ./isochron_postprocess.py 2> /dev/null
+	rm -f "$isochron_dat" 2> /dev/null
+}
+
+__test_always_open()
+{
+	run_test 0.000000000 $STREAM_PRIO_1 0 0 "Gate always open"
+}
+
+__test_always_closed()
+{
+	run_test 0.000000000 $STREAM_PRIO_3 0 1 "Gate always closed"
+}
+
+__test_in_band()
+{
+	# Send packets in-band with the OPEN gate entry
+	run_test 0.000000000 $STREAM_PRIO_2 0 0 "In band with gate"
+}
+
+__test_out_of_band()
+{
+	# Send packets in-band with the CLOSE gate entry
+	run_test 0.005000000 $STREAM_PRIO_2 \
+		$((GATE_DURATION_NS - SHIFT_TIME_NS)) 0 \
+		"Out of band with gate"
+}
+
+run_subtests()
+{
+	__test_always_open
+	__test_always_closed
+	__test_in_band
+	__test_out_of_band
+}
+
+test_taprio_after_ptp()
+{
+	log_info "Setting up taprio after PTP"
+	ptp_setup
+	taprio_replace $swp2
+	run_subtests
+	taprio_cleanup $swp2
+	ptp_cleanup
+}
+
+__test_under_max_sdu()
+{
+	# Limit max-sdu for STREAM_PRIO_1
+	taprio_replace "$swp2" "max-sdu 0 0 0 0 0 0 100 0"
+	run_test 0.000000000 $STREAM_PRIO_1 0 0 "Under maximum SDU"
+}
+
+__test_over_max_sdu()
+{
+	# Limit max-sdu for STREAM_PRIO_1
+	taprio_replace "$swp2" "max-sdu 0 0 0 0 0 0 20 0"
+	run_test 0.000000000 $STREAM_PRIO_1 0 1 "Over maximum SDU"
+}
+
+test_max_sdu()
+{
+	ptp_setup
+	__test_under_max_sdu
+	__test_over_max_sdu
+	taprio_cleanup $swp2
+	ptp_cleanup
+}
+
+# Perform a clock jump in the past without synchronization running, so that the
+# time base remains where it was set by phc_ctl.
+test_clock_jump_backward()
+{
+	# This is a more complex schedule specifically crafted in a way that
+	# has been problematic on NXP LS1028A. Not much to test with it other
+	# than the fact that it passes traffic.
+	tc qdisc replace dev $swp2 root stab overhead 24 taprio num_tc 8 \
+		queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 map 0 1 2 3 4 5 6 7 \
+		base-time 0 sched-entry S 20 300000 sched-entry S 10 200000 \
+		sched-entry S 20 300000 sched-entry S 48 200000 \
+		sched-entry S 20 300000 sched-entry S 83 200000 \
+		sched-entry S 40 300000 sched-entry S 00 200000 flags 2
+
+	log_info "Forcing a backward clock jump"
+	phc_ctl $swp1 set 0
+
+	ping_test $h1 192.0.2.2
+	taprio_cleanup $swp2
+}
+
+# Test that taprio tolerates clock jumps.
+# Since ptp4l and phc2sys are running, it is expected for the time to
+# eventually recover (through yet another clock jump). Isochron waits
+# until that is the case.
+test_clock_jump_backward_forward()
+{
+	log_info "Forcing a backward and a forward clock jump"
+	taprio_replace $swp2
+	phc_ctl $swp1 set 0
+	ptp_setup
+	ping_test $h1 192.0.2.2
+	run_subtests
+	ptp_cleanup
+	taprio_cleanup $swp2
+}
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_test_skip "Could not test offloaded functionality"
+	exit $EXIT_STATUS
+fi
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_tunnel_key.sh b/tools/testing/selftests/net/forwarding/tc_tunnel_key.sh
new file mode 100755
index 000000000000..79775b10b99f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_tunnel_key.sh
@@ -0,0 +1,162 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="tunnel_key_nofrag_test"
+
+NUM_NETIFS=4
+source tc_common.sh
+source lib.sh
+
+tcflags="skip_hw"
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24
+	forwarding_enable
+	mtu_set $h1 1500
+	tunnel_create h1-et vxlan 192.0.2.1 192.0.2.2 dev $h1 dstport 0 external
+	tc qdisc add dev h1-et clsact
+	mtu_set h1-et 1230
+	mtu_restore $h1
+	mtu_set $h1 1000
+}
+
+h1_destroy()
+{
+	tc qdisc del dev h1-et clsact
+	tunnel_destroy h1-et
+	forwarding_restore
+	mtu_restore $h1
+	simple_if_fini $h1 192.0.2.1/24
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24
+}
+
+switch_create()
+{
+	simple_if_init $swp1 192.0.2.2/24
+	tc qdisc add dev $swp1 clsact
+	simple_if_init $swp2 192.0.2.1/24
+}
+
+switch_destroy()
+{
+	simple_if_fini $swp2 192.0.2.1/24
+	tc qdisc del dev $swp1 clsact
+	simple_if_fini $swp1 192.0.2.2/24
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	h1mac=$(mac_get $h1)
+	h2mac=$(mac_get $h2)
+
+	swp1origmac=$(mac_get $swp1)
+	swp2origmac=$(mac_get $swp2)
+	ip link set $swp1 address $h2mac
+	ip link set $swp2 address $h1mac
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+
+	if ! tc action add action tunnel_key help 2>&1 | grep -q nofrag; then
+		log_test "SKIP: iproute doesn't support nofrag"
+		exit $ksft_skip
+	fi
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+
+	ip link set $swp2 address $swp2origmac
+	ip link set $swp1 address $swp1origmac
+}
+
+tunnel_key_nofrag_test()
+{
+	RET=0
+	local i
+
+	tc filter add dev $swp1 ingress protocol ip pref 100 handle 100 \
+		flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \
+		ip_flags nofrag action drop
+	tc filter add dev $swp1 ingress protocol ip pref 101 handle 101 \
+		flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \
+		ip_flags firstfrag action drop
+	tc filter add dev $swp1 ingress protocol ip pref 102 handle 102 \
+		flower src_ip 192.0.2.1 dst_ip 192.0.2.2 ip_proto udp \
+		ip_flags nofirstfrag action drop
+
+	# test 'nofrag' set
+	tc filter add dev h1-et egress protocol all pref 1 handle 1 matchall $tcflags \
+		action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 nofrag index 10
+	$MZ h1-et -c 1 -p 930 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
+	tc_check_packets "dev $swp1 ingress" 100 1
+	check_err $? "packet smaller than MTU was not tunneled"
+
+	$MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
+	tc_check_packets "dev $swp1 ingress" 100 1
+	check_err $? "packet bigger than MTU matched nofrag (nofrag was set)"
+	tc_check_packets "dev $swp1 ingress" 101 0
+	check_err $? "packet bigger than MTU matched firstfrag (nofrag was set)"
+	tc_check_packets "dev $swp1 ingress" 102 0
+	check_err $? "packet bigger than MTU matched nofirstfrag (nofrag was set)"
+
+	# test 'nofrag' cleared
+	tc actions change action tunnel_key set src_ip 192.0.2.1 dst_ip 192.0.2.2 id 42 index 10
+	$MZ h1-et -c 1 -p 931 -a 00:aa:bb:cc:dd:ee -b 00:ee:dd:cc:bb:aa -t ip -q
+	tc_check_packets "dev $swp1  ingress" 100 1
+	check_err $? "packet bigger than MTU matched nofrag (nofrag was unset)"
+	tc_check_packets "dev $swp1  ingress" 101 1
+	check_err $? "packet bigger than MTU didn't match firstfrag (nofrag was unset) "
+	tc_check_packets "dev $swp1 ingress" 102 1
+	check_err $? "packet bigger than MTU didn't match nofirstfrag (nofrag was unset) "
+
+	for i in 100 101 102; do
+		tc filter del dev $swp1 ingress protocol ip pref $i handle $i flower
+	done
+	tc filter del dev h1-et egress pref 1 handle 1 matchall
+
+	log_test "tunnel_key nofrag ($tcflags)"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+tc_offload_check
+if [[ $? -ne 0 ]]; then
+	log_info "Could not test offloaded functionality"
+else
+	tcflags="skip_sw"
+	tests_run
+fi
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh b/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh
new file mode 100755
index 000000000000..45378905cb97
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tc_vlan_modify.sh
@@ -0,0 +1,164 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	vlan_modify_ingress
+	vlan_modify_egress
+"
+
+NUM_NETIFS=4
+CHECK_TC="yes"
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create $h1 85 v$h1 192.0.2.17/28 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 85
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+	vlan_create $h2 65 v$h2 192.0.2.18/28 2001:db8:2::2/64
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 65
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+	ip link set dev $swp2 up
+
+	bridge vlan add dev $swp1 vid 85
+	bridge vlan add dev $swp2 vid 65
+
+	bridge vlan add dev $swp2 vid 85
+	bridge vlan add dev $swp1 vid 65
+
+	tc qdisc add dev $swp1 clsact
+	tc qdisc add dev $swp2 clsact
+}
+
+switch_destroy()
+{
+	tc qdisc del dev $swp2 clsact
+	tc qdisc del dev $swp1 clsact
+
+	bridge vlan del vid 65 dev $swp1
+	bridge vlan del vid 85 dev $swp2
+
+	bridge vlan del vid 65 dev $swp2
+	bridge vlan del vid 85 dev $swp1
+
+	ip link set dev $swp2 down
+	ip link set dev $swp1 down
+
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+
+	h2_destroy
+	h1_destroy
+
+	vrf_cleanup
+}
+
+vlan_modify_ingress()
+{
+	RET=0
+
+	ping_do $h1.85 192.0.2.18
+	check_fail $? "ping between two different vlans passed when should not"
+
+	ping6_do $h1.85 2001:db8:2::2
+	check_fail $? "ping6 between two different vlans passed when should not"
+
+	tc filter add dev $swp1 ingress protocol all pref 1 handle 1 \
+		flower action vlan modify id 65
+	tc filter add dev $swp2 ingress protocol all pref 1 handle 1 \
+		flower action vlan modify id 85
+
+	ping_do $h1.85 192.0.2.18
+	check_err $? "ping between two different vlans failed when should not"
+
+	ping6_do $h1.85 2001:db8:2::2
+	check_err $? "ping6 between two different vlans failed when should not"
+
+	log_test "VLAN modify at ingress"
+
+	tc filter del dev $swp2 ingress protocol all pref 1 handle 1 flower
+	tc filter del dev $swp1 ingress protocol all pref 1 handle 1 flower
+}
+
+vlan_modify_egress()
+{
+	RET=0
+
+	ping_do $h1.85 192.0.2.18
+	check_fail $? "ping between two different vlans passed when should not"
+
+	ping6_do $h1.85 2001:db8:2::2
+	check_fail $? "ping6 between two different vlans passed when should not"
+
+	tc filter add dev $swp1 egress protocol all pref 1 handle 1 \
+		flower action vlan modify id 85
+	tc filter add dev $swp2 egress protocol all pref 1 handle 1 \
+		flower action vlan modify id 65
+
+	ping_do $h1.85 192.0.2.18
+	check_err $? "ping between two different vlans failed when should not"
+
+	ping6_do $h1.85 2001:db8:2::2
+	check_err $? "ping6 between two different vlans failed when should not"
+
+	log_test "VLAN modify at egress"
+
+	tc filter del dev $swp2 egress protocol all pref 1 handle 1 flower
+	tc filter del dev $swp1 egress protocol all pref 1 handle 1 flower
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/tsn_lib.sh b/tools/testing/selftests/net/forwarding/tsn_lib.sh
new file mode 100644
index 000000000000..08c044ff6689
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/tsn_lib.sh
@@ -0,0 +1,275 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright 2021-2022 NXP
+
+tc_testing_scripts_dir=$(dirname $0)/../../tc-testing/scripts
+
+REQUIRE_ISOCHRON=${REQUIRE_ISOCHRON:=yes}
+REQUIRE_LINUXPTP=${REQUIRE_LINUXPTP:=yes}
+
+# Tunables
+UTC_TAI_OFFSET=37
+ISOCHRON_CPU=1
+
+if [[ "$REQUIRE_ISOCHRON" = "yes" ]]; then
+	# https://github.com/vladimiroltean/tsn-scripts
+	# WARNING: isochron versions pre-1.0 are unstable,
+	# always use the latest version
+	require_command isochron
+fi
+if [[ "$REQUIRE_LINUXPTP" = "yes" ]]; then
+	require_command phc2sys
+	require_command ptp4l
+	require_command phc_ctl
+fi
+
+phc2sys_start()
+{
+	local uds_address=$1
+	local extra_args=""
+
+	if ! [ -z "${uds_address}" ]; then
+		extra_args="${extra_args} -z ${uds_address}"
+	fi
+
+	phc2sys_log="$(mktemp)"
+
+	chrt -f 10 phc2sys -m \
+		-a -rr \
+		--step_threshold 0.00002 \
+		--first_step_threshold 0.00002 \
+		${extra_args} \
+		> "${phc2sys_log}" 2>&1 &
+	phc2sys_pid=$!
+
+	echo "phc2sys logs to ${phc2sys_log} and has pid ${phc2sys_pid}"
+
+	sleep 1
+}
+
+phc2sys_stop()
+{
+	{ kill ${phc2sys_pid} && wait ${phc2sys_pid}; } 2> /dev/null
+	rm "${phc2sys_log}" 2> /dev/null
+}
+
+# Replace space separators from interface list with underscores
+if_names_to_label()
+{
+	local if_name_list="$1"
+
+	echo "${if_name_list/ /_}"
+}
+
+ptp4l_start()
+{
+	local if_names="$1"
+	local slave_only=$2
+	local uds_address=$3
+	local log="ptp4l_log_$(if_names_to_label ${if_names})"
+	local pid="ptp4l_pid_$(if_names_to_label ${if_names})"
+	local extra_args=""
+
+	for if_name in ${if_names}; do
+		extra_args="${extra_args} -i ${if_name}"
+	done
+
+	if [ "${slave_only}" = true ]; then
+		extra_args="${extra_args} -s"
+	fi
+
+	# declare dynamic variables ptp4l_log_${if_name} and ptp4l_pid_${if_name}
+	# as global, so that they can be referenced later
+	declare -g "${log}=$(mktemp)"
+
+	chrt -f 10 ptp4l -m -2 -P \
+		--step_threshold 0.00002 \
+		--first_step_threshold 0.00002 \
+		--tx_timestamp_timeout 100 \
+		--uds_address="${uds_address}" \
+		${extra_args} \
+		> "${!log}" 2>&1 &
+	declare -g "${pid}=$!"
+
+	echo "ptp4l for interfaces ${if_names} logs to ${!log} and has pid ${!pid}"
+
+	sleep 1
+}
+
+ptp4l_stop()
+{
+	local if_names="$1"
+	local log="ptp4l_log_$(if_names_to_label ${if_names})"
+	local pid="ptp4l_pid_$(if_names_to_label ${if_names})"
+
+	{ kill ${!pid} && wait ${!pid}; } 2> /dev/null
+	rm "${!log}" 2> /dev/null
+}
+
+cpufreq_max()
+{
+	local cpu=$1
+	local freq="cpu${cpu}_freq"
+	local governor="cpu${cpu}_governor"
+
+	# Kernel may be compiled with CONFIG_CPU_FREQ disabled
+	if ! [ -d /sys/bus/cpu/devices/cpu${cpu}/cpufreq ]; then
+		return
+	fi
+
+	# declare dynamic variables cpu${cpu}_freq and cpu${cpu}_governor as
+	# global, so they can be referenced later
+	declare -g "${freq}=$(cat /sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_min_freq)"
+	declare -g "${governor}=$(cat /sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_governor)"
+
+	cat /sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_max_freq > \
+		/sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_min_freq
+	echo -n "performance" > \
+		/sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_governor
+}
+
+cpufreq_restore()
+{
+	local cpu=$1
+	local freq="cpu${cpu}_freq"
+	local governor="cpu${cpu}_governor"
+
+	if ! [ -d /sys/bus/cpu/devices/cpu${cpu}/cpufreq ]; then
+		return
+	fi
+
+	echo "${!freq}" > /sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_min_freq
+	echo -n "${!governor}" > \
+		/sys/bus/cpu/devices/cpu${cpu}/cpufreq/scaling_governor
+}
+
+isochron_recv_start()
+{
+	local if_name=$1
+	local uds=$2
+	local stats_port=$3
+	local extra_args=$4
+	local pid="isochron_pid_${stats_port}"
+
+	if ! [ -z "${uds}" ]; then
+		extra_args="${extra_args} --unix-domain-socket ${uds}"
+	fi
+
+	isochron rcv \
+		--interface ${if_name} \
+		--sched-priority 98 \
+		--sched-fifo \
+		--utc-tai-offset ${UTC_TAI_OFFSET} \
+		--stats-port ${stats_port} \
+		--quiet \
+		${extra_args} & \
+	declare -g "${pid}=$!"
+
+	sleep 1
+}
+
+isochron_recv_stop()
+{
+	local stats_port=$1
+	local pid="isochron_pid_${stats_port}"
+
+	{ kill ${!pid} && wait ${!pid}; } 2> /dev/null
+}
+
+isochron_do()
+{
+	local sender_if_name=$1; shift
+	local receiver_if_name=$1; shift
+	local sender_uds=$1; shift
+	local receiver_uds=$1; shift
+	local base_time=$1; shift
+	local cycle_time=$1; shift
+	local shift_time=$1; shift
+	local window_size=$1; shift
+	local num_pkts=$1; shift
+	local vid=$1; shift
+	local priority=$1; shift
+	local dst_ip=$1; shift
+	local isochron_dat=$1; shift
+	local extra_args=""
+	local receiver_extra_args=""
+	local vrf="$(master_name_get ${sender_if_name})"
+	local use_l2="true"
+
+	if ! [ -z "${dst_ip}" ]; then
+		use_l2="false"
+	fi
+
+	if ! [ -z "${vrf}" ]; then
+		dst_ip="${dst_ip}%${vrf}"
+	fi
+
+	if ! [ -z "${vid}" ]; then
+		vid="--vid=${vid}"
+	fi
+
+	if [ -z "${receiver_uds}" ]; then
+		extra_args="${extra_args} --omit-remote-sync"
+	fi
+
+	if ! [ -z "${shift_time}" ]; then
+		extra_args="${extra_args} --shift-time=${shift_time}"
+	fi
+
+	if ! [ -z "${window_size}" ]; then
+		extra_args="${extra_args} --window-size=${window_size}"
+	fi
+
+	if [ "${use_l2}" = "true" ]; then
+		extra_args="${extra_args} --l2 --etype=0xdead ${vid}"
+		receiver_extra_args="--l2 --etype=0xdead"
+	else
+		extra_args="${extra_args} --l4 --ip-destination=${dst_ip}"
+		receiver_extra_args="--l4"
+	fi
+
+	cpufreq_max ${ISOCHRON_CPU}
+
+	isochron_recv_start "${h2}" "${receiver_uds}" 5000 "${receiver_extra_args}"
+
+	isochron send \
+		--interface ${sender_if_name} \
+		--unix-domain-socket ${sender_uds} \
+		--priority ${priority} \
+		--base-time ${base_time} \
+		--cycle-time ${cycle_time} \
+		--num-frames ${num_pkts} \
+		--frame-size 64 \
+		--txtime \
+		--utc-tai-offset ${UTC_TAI_OFFSET} \
+		--cpu-mask $((1 << ${ISOCHRON_CPU})) \
+		--sched-fifo \
+		--sched-priority 98 \
+		--client 127.0.0.1 \
+		--sync-threshold 5000 \
+		--output-file ${isochron_dat} \
+		${extra_args} \
+		--quiet
+
+	isochron_recv_stop 5000
+
+	cpufreq_restore ${ISOCHRON_CPU}
+}
+
+isochron_report_num_received()
+{
+	local isochron_dat=$1; shift
+
+	# Count all received packets by looking at the non-zero RX timestamps
+	isochron report \
+		--input-file "${isochron_dat}" \
+		--printf-format "%u\n" --printf-args "R" | \
+		grep -w -v '0' | wc -l
+}
+
+taprio_wait_for_admin()
+{
+	local if_name="$1"; shift
+
+	"$tc_testing_scripts_dir/taprio_wait_for_admin.sh" "$(which tc)" "$if_name"
+}
diff --git a/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
new file mode 100755
index 000000000000..43469c7de118
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
@@ -0,0 +1,577 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------+                +------------------------------+
+# |                    vrf-h1 |                |                       vrf-h2 |
+# |    + $h1                  |                |    + $h2                     |
+# |    | 10.1.1.101/24        |                |    | 10.1.2.101/24           |
+# |    | default via 10.1.1.1 |                |    | default via 10.1.2.1    |
+# +----|----------------------+                +----|-------------------------+
+#      |                                            |
+# +----|--------------------------------------------|-------------------------+
+# | SW |                                            |                         |
+# | +--|--------------------------------------------|-----------------------+ |
+# | |  + $swp1                         br1          + $swp2                 | |
+# | |     vid 10 pvid untagged                         vid 20 pvid untagged | |
+# | |                                                                       | |
+# | |  + vx10                                       + vx20                  | |
+# | |    local 10.0.0.1                               local 10.0.0.1        | |
+# | |    remote 10.0.0.2                              remote 10.0.0.2       | |
+# | |    id 1000                                      id 2000               | |
+# | |    dstport 4789                                 dstport 4789          | |
+# | |    vid 10 pvid untagged                         vid 20 pvid untagged  | |
+# | |                                                                       | |
+# | +-----------------------------------+-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------|-----------------------------------+ |
+# | |                                   |                                   | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10                                                   vlan20 +  | |
+# | |  | 10.1.1.11/24                                       10.1.2.11/24 |  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |    10.1.1.1/24                                         10.1.2.1/24    | |
+# | |    00:00:5e:00:01:01                             00:00:5e:00:01:01    | |
+# | |                               vrf-green                               | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                       +lo                       |
+# |    | 192.0.2.1/24                                10.0.0.1/32              |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                            vrf-spine                   |
+# |    + $rp2                                                   |
+# |      192.0.2.2/24                                           |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |                                                             |
+# |    + v1 (veth)                                              |
+# |    | 192.0.3.2/24                                           |
+# +----|--------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# |    + v2 (veth)                                  +lo           NS1 (netns) |
+# |      192.0.3.1/24                                10.0.0.2/32              |
+# |                                                                           |
+# | +-----------------------------------------------------------------------+ |
+# | |                               vrf-green                               | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |  | 10.1.1.1/24                                         10.1.2.1/24 |  | |
+# | |  | 00:00:5e:00:01:01                             00:00:5e:00:01:01 |  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10                                                   vlan20 +  | |
+# | |  | 10.1.1.12/24                                       10.1.2.12/24 |  | |
+# | |  |                                                                 |  | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |                                   |                                   | |
+# | +-----------------------------------|-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------+-----------------------------------+ |
+# | |                                                                       | |
+# | |  + vx10                                     + vx20                    | |
+# | |    local 10.0.0.2                             local 10.0.0.2          | |
+# | |    remote 10.0.0.1                            remote 10.0.0.1         | |
+# | |    id 1000                                    id 2000                 | |
+# | |    dstport 4789                               dstport 4789            | |
+# | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
+# | |                                                                       | |
+# | |  + w1 (veth)                                + w3 (veth)               | |
+# | |  | vid 10 pvid untagged          br1        | vid 20 pvid untagged    | |
+# | +--|------------------------------------------|-------------------------+ |
+# |    |                                          |                           |
+# |    |                                          |                           |
+# | +--|----------------------+                +--|-------------------------+ |
+# | |  |               vrf-h1 |                |  |                  vrf-h2 | |
+# | |  + w2 (veth)            |                |  + w4 (veth)               | |
+# | |    10.1.1.102/24        |                |    10.1.2.102/24           | |
+# | |    default via 10.1.1.1 |                |    default via 10.1.2.1    | |
+# | +-------------------------+                +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+	arp_decap
+	arp_suppression
+"
+NUM_NETIFS=6
+source lib.sh
+
+require_command $ARPING
+
+hx_create()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	vrf_create $vrf_name
+	ip link set dev $if_name master $vrf_name
+	ip link set dev $vrf_name up
+	ip link set dev $if_name up
+
+	ip address add $ip_addr/24 dev $if_name
+	ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+		dev $if_name
+	ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	ip route del default vrf $vrf_name nexthop via $gw_ip
+	ip neigh del $gw_ip dev $if_name
+	ip address del $ip_addr/24 dev $if_name
+
+	ip link set dev $if_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h1_destroy()
+{
+	hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h2_create()
+{
+	hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+h2_destroy()
+{
+	hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 192.0.2.1/24
+	ip route add 10.0.0.2/32 nexthop via 192.0.2.2
+
+	ip link add name vx10 type vxlan id 1000		\
+		local 10.0.0.1 remote 10.0.0.2 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000		\
+		local 10.0.0.1 remote 10.0.0.2 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 20 dev $swp2 pvid untagged
+
+	ip address add 10.0.0.1/32 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 10.1.1.11/24 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.1.1/24 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 10.1.2.11/24 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.2.1/24 dev vlan20-v
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+
+switch_destroy()
+{
+	sysctl_restore net.ipv4.conf.all.rp_filter
+
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+	bridge vlan del vid 20 dev br1 self
+	bridge vlan del vid 10 dev br1 self
+
+	ip link del dev vlan20
+
+	ip link del dev vlan10
+
+	vrf_destroy "vrf-green"
+
+	ip address del 10.0.0.1/32 dev lo
+
+	bridge vlan del vid 20 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	ip route del 10.0.0.2/32 nexthop via 192.0.2.2
+	ip address del dev $rp1 192.0.2.1/24
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+spine_create()
+{
+	vrf_create "vrf-spine"
+	ip link set dev $rp2 master vrf-spine
+	ip link set dev v1 master vrf-spine
+	ip link set dev vrf-spine up
+	ip link set dev $rp2 up
+	ip link set dev v1 up
+
+	ip address add 192.0.2.2/24 dev $rp2
+	ip address add 192.0.3.2/24 dev v1
+
+	ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+	ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+}
+
+spine_destroy()
+{
+	ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+	ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+
+	ip address del 192.0.3.2/24 dev v1
+	ip address del 192.0.2.2/24 dev $rp2
+
+	ip link set dev v1 down
+	ip link set dev $rp2 down
+	vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+	hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+	hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	ip link set dev br1 up
+
+	ip link set dev v2 up
+	ip address add dev v2 192.0.3.1/24
+	ip route add 10.0.0.1/32 nexthop via 192.0.3.2
+
+	ip link add name vx10 type vxlan id 1000		\
+		local 10.0.0.2 remote 10.0.0.1 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000		\
+		local 10.0.0.2 remote 10.0.0.1 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev w1 master br1
+	ip link set dev w1 up
+	bridge vlan add vid 10 dev w1 pvid untagged
+
+	ip link set dev w3 master br1
+	ip link set dev w3 up
+	bridge vlan add vid 20 dev w3 pvid untagged
+
+	ip address add 10.0.0.2/32 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 10.1.1.12/24 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.1.1/24 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 10.1.2.12/24 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.2.1/24 dev vlan20-v
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+export -f ns_switch_create
+
+ns_init()
+{
+	ip link add name w1 type veth peer name w2
+	ip link add name w3 type veth peer name w4
+
+	ip link set dev lo up
+
+	ns_h1_create
+	ns_h2_create
+	ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+macs_populate()
+{
+	local mac1=$1; shift
+	local mac2=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local dst=$1; shift
+
+	bridge fdb add $mac1 dev vx10 self master extern_learn static \
+		dst $dst vlan 10
+	bridge fdb add $mac2 dev vx20 self master extern_learn static \
+		dst $dst vlan 20
+
+	ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+		extern_learn
+	ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+		extern_learn
+}
+export -f macs_populate
+
+macs_initialize()
+{
+	local h1_ns_mac=$(in_ns ns1 mac_get w2)
+	local h2_ns_mac=$(in_ns ns1 mac_get w4)
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	macs_populate $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
+	in_ns ns1 macs_populate $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	spine_create
+	ns1_create
+
+	macs_initialize
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns1_destroy
+	spine_destroy
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
+	ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
+	ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
+	ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
+	ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
+}
+
+arp_decap()
+{
+	# Repeat the ping tests, but without populating the neighbours. This
+	# makes sure we correctly decapsulate ARP packets
+	log_info "deleting neighbours from vlan interfaces"
+
+	ip neigh del 10.1.1.102 dev vlan10
+	ip neigh del 10.1.2.102 dev vlan20
+
+	ping_ipv4
+
+	ip neigh replace 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
+		dev vlan10 extern_learn
+	ip neigh replace 10.1.2.102 lladdr $(in_ns ns1 mac_get w4) nud noarp \
+		dev vlan20 extern_learn
+}
+
+arp_suppression_compare()
+{
+	local expect=$1; shift
+	local actual=$(in_ns ns1 tc_rule_stats_get vx10 1 ingress)
+
+	(( expect == actual ))
+	check_err $? "expected $expect arps got $actual"
+}
+
+arp_suppression()
+{
+	ip link set dev vx10 type bridge_slave neigh_suppress on
+
+	in_ns ns1 tc qdisc add dev vx10 clsact
+	in_ns ns1 tc filter add dev vx10 ingress proto arp pref 1 handle 101 \
+		flower dst_mac ff:ff:ff:ff:ff:ff arp_tip 10.1.1.102 arp_op \
+		request action pass
+
+	# The neighbour is configured on the SVI and ARP suppression is on, so
+	# the ARP request should be suppressed
+	RET=0
+
+	$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+	check_err $? "arping failed"
+
+	arp_suppression_compare 0
+
+	log_test "neigh_suppress: on / neigh exists: yes"
+
+	# Delete the neighbour from the SVI. A single ARP request should be
+	# received by the remote VTEP
+	RET=0
+
+	ip neigh del 10.1.1.102 dev vlan10
+
+	$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+	check_err $? "arping failed"
+
+	arp_suppression_compare 1
+
+	log_test "neigh_suppress: on / neigh exists: no"
+
+	# Turn off ARP suppression and make sure ARP is not suppressed,
+	# regardless of neighbour existence on the SVI
+	RET=0
+
+	ip neigh del 10.1.1.102 dev vlan10 &> /dev/null
+	ip link set dev vx10 type bridge_slave neigh_suppress off
+
+	$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+	check_err $? "arping failed"
+
+	arp_suppression_compare 2
+
+	log_test "neigh_suppress: off / neigh exists: no"
+
+	RET=0
+
+	ip neigh add 10.1.1.102 lladdr $(in_ns ns1 mac_get w2) nud noarp \
+		dev vlan10 extern_learn
+
+	$ARPING -I $h1 -fqb -c 1 -w 1 10.1.1.102
+	check_err $? "arping failed"
+
+	arp_suppression_compare 3
+
+	log_test "neigh_suppress: off / neigh exists: yes"
+
+	in_ns ns1 tc qdisc del dev vx10 clsact
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_asymmetric_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_asymmetric_ipv6.sh
new file mode 100755
index 000000000000..f4930098974f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_asymmetric_ipv6.sh
@@ -0,0 +1,504 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------------------+            +-----------------------------+
+# |                         vrf-h1 |            |                      vrf-h2 |
+# |    + $h1                       |            | + $h2                       |
+# |    | 2001:db8:1::1/64          |            | | 2001:db8:2::1/64          |
+# |    | default via 2001:db8:1::3 |            | | default via 2001:db8:2::3 |
+# +----|---------------------------+            +-|---------------------------+
+#      |                                          |
+# +----|------------------------------------------|---------------------------+
+# | SW |                                          |                           |
+# | +--|------------------------------------------|-------------------------+ |
+# | |  + $swp1                         br1        + $swp2                   | |
+# | |     vid 10 pvid untagged                       vid 20 pvid untagged   | |
+# | |                                                                       | |
+# | |  + vx10                                     + vx20                    | |
+# | |    local 2001:db8:3::1                        local 2001:db8:3::1     | |
+# | |    remote 2001:db8:3::2                       remote 2001:db8:3::2    | |
+# | |    id 1000                                    id 2000                 | |
+# | |    dstport 4789                               dstport 4789            | |
+# | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
+# | |                                                                       | |
+# | +-----------------------------------+-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------|-----------------------------------+ |
+# | |                                   |                                   | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10                                                   vlan20 +  | |
+# | |  | 2001:db8:1::2/64                               2001:db8:2::2/64 |  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |    2001:db8:1::3/64                               2001:db8:2::3/64    | |
+# | |    00:00:5e:00:01:01                             00:00:5e:00:01:01    | |
+# | |                               vrf-green                               | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                       +lo                       |
+# |    | 2001:db8:4::1/64                            2001:db8:3::1/128        |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                            vrf-spine                   |
+# |    + $rp2                                                   |
+# |      2001:db8:4::2/64                                       |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |                                                             |
+# |    + v1 (veth)                                              |
+# |    | 2001:db8:5::2/64                                       |
+# +----|--------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# |    + v2 (veth)                                  +lo           NS1 (netns) |
+# |      2001:db8:5::1/64                            2001:db8:3::2/128        |
+# |                                                                           |
+# | +-----------------------------------------------------------------------+ |
+# | |                               vrf-green                               | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |  | 2001:db8:1::3/64                               2001:db8:2::3/64 |  | |
+# | |  | 00:00:5e:00:01:01                             00:00:5e:00:01:01 |  | |
+# | |  |                                                                 |  | |
+# | |  + vlan10                                                   vlan20 +  | |
+# | |  | 2001:db8:1::3/64                               2001:db8:2::3/64 |  | |
+# | |  |                                                                 |  | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |                                   |                                   | |
+# | +-----------------------------------|-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------+-----------------------------------+ |
+# | |                                                                       | |
+# | |  + vx10                                     + vx20                    | |
+# | |    local 2001:db8:3::2                        local 2001:db8:3::2     | |
+# | |    remote 2001:db8:3::1                       remote 2001:db8:3::1    | |
+# | |    id 1000                                    id 2000                 | |
+# | |    dstport 4789                               dstport 4789            | |
+# | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
+# | |                                                                       | |
+# | |  + w1 (veth)                                + w3 (veth)               | |
+# | |  | vid 10 pvid untagged          br1        | vid 20 pvid untagged    | |
+# | +--|------------------------------------------|-------------------------+ |
+# |    |                                          |                           |
+# |    |                                          |                           |
+# | +--|----------------------+                +--|-------------------------+ |
+# | |  |               vrf-h1 |                |  |                  vrf-h2 | |
+# | |  + w2 (veth)            |                |  + w4 (veth)               | |
+# | |    2001:db8:1::4/64     |                |    2001:db8:2::4/64        | |
+# | |    default via          |                |    default via             | |
+# | |    2001:db8:1::3/64     |                |    2001:db8:2::3/64        | |
+# | +-------------------------+                +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv6
+	arp_decap
+"
+NUM_NETIFS=6
+source lib.sh
+
+require_command $ARPING
+
+hx_create()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	vrf_create $vrf_name
+	ip link set dev $if_name master $vrf_name
+	ip link set dev $vrf_name up
+	ip link set dev $if_name up
+
+	ip address add $ip_addr/64 dev $if_name
+	ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+		dev $if_name
+	ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	ip route del default vrf $vrf_name nexthop via $gw_ip
+	ip neigh del $gw_ip dev $if_name
+	ip address del $ip_addr/64 dev $if_name
+
+	ip link set dev $if_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	hx_create "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
+}
+
+h1_destroy()
+{
+	hx_destroy "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
+}
+
+h2_create()
+{
+	hx_create "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
+}
+
+h2_destroy()
+{
+	hx_destroy "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 2001:db8:4::1/64
+	ip route add 2001:db8:3::2/128 nexthop via 2001:db8:4::2
+
+	ip link add name vx10 type vxlan id 1000		\
+		local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000		\
+		local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 20 dev $swp2 pvid untagged
+
+	ip address add 2001:db8:3::1/128 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 2001:db8:1::2/64 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:1::3/64 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 2001:db8:2::2/64 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:2::3/64 dev vlan20-v
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+}
+
+switch_destroy()
+{
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+	bridge vlan del vid 20 dev br1 self
+	bridge vlan del vid 10 dev br1 self
+
+	ip link del dev vlan20
+
+	ip link del dev vlan10
+
+	vrf_destroy "vrf-green"
+
+	ip address del 2001:db8:3::1/128 dev lo
+
+	bridge vlan del vid 20 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	ip route del 2001:db8:3::2 nexthop via 2001:db8:4::2
+	ip address del dev $rp1 2001:db8:4::1/64
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+spine_create()
+{
+	vrf_create "vrf-spine"
+	ip link set dev $rp2 master vrf-spine
+	ip link set dev v1 master vrf-spine
+	ip link set dev vrf-spine up
+	ip link set dev $rp2 up
+	ip link set dev v1 up
+
+	ip address add 2001:db8:4::2/64 dev $rp2
+	ip address add 2001:db8:5::2/64 dev v1
+
+	ip route add 2001:db8:3::1/128 vrf vrf-spine nexthop via \
+		2001:db8:4::1
+	ip route add 2001:db8:3::2/128 vrf vrf-spine nexthop via \
+		2001:db8:5::1
+}
+
+spine_destroy()
+{
+	ip route del 2001:db8:3::2/128 vrf vrf-spine nexthop via \
+		2001:db8:5::1
+	ip route del 2001:db8:3::1/128 vrf vrf-spine nexthop via \
+		2001:db8:4::1
+
+	ip address del 2001:db8:5::2/64 dev v1
+	ip address del 2001:db8:4::2/64 dev $rp2
+
+	ip link set dev v1 down
+	ip link set dev $rp2 down
+	vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+	hx_create "vrf-h1" w2 2001:db8:1::4 2001:db8:1::3
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+	hx_create "vrf-h2" w4 2001:db8:2::4 2001:db8:2::3
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	ip link set dev br1 up
+
+	ip link set dev v2 up
+	ip address add dev v2 2001:db8:5::1/64
+	ip route add 2001:db8:3::1 nexthop via 2001:db8:5::2
+
+	ip link add name vx10 type vxlan id 1000		\
+		local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000		\
+		local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev w1 master br1
+	ip link set dev w1 up
+	bridge vlan add vid 10 dev w1 pvid untagged
+
+	ip link set dev w3 master br1
+	ip link set dev w3 up
+	bridge vlan add vid 20 dev w3 pvid untagged
+
+	ip address add 2001:db8:3::2/128 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 2001:db8:1::3/64 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:1::3/64 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 2001:db8:2::3/64 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:2::3/64 dev vlan20-v
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+}
+export -f ns_switch_create
+
+ns_init()
+{
+	ip link add name w1 type veth peer name w2
+	ip link add name w3 type veth peer name w4
+
+	ip link set dev lo up
+
+	ns_h1_create
+	ns_h2_create
+	ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+macs_populate()
+{
+	local mac1=$1; shift
+	local mac2=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local dst=$1; shift
+
+	bridge fdb add $mac1 dev vx10 self master extern_learn static \
+		dst $dst vlan 10
+	bridge fdb add $mac2 dev vx20 self master extern_learn static \
+		dst $dst vlan 20
+
+	ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+		extern_learn
+	ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+		extern_learn
+}
+export -f macs_populate
+
+macs_initialize()
+{
+	local h1_ns_mac=$(in_ns ns1 mac_get w2)
+	local h2_ns_mac=$(in_ns ns1 mac_get w4)
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	macs_populate $h1_ns_mac $h2_ns_mac 2001:db8:1::4 2001:db8:2::4 \
+		2001:db8:3::2
+	in_ns ns1 macs_populate $h1_mac $h2_mac 2001:db8:1::1 2001:db8:2::1 \
+		2001:db8:3::1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	spine_create
+	ns1_create
+	in_ns ns1 forwarding_enable
+
+	macs_initialize
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns1_destroy
+	spine_destroy
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::1 ": local->local vid 10->vid 20"
+	ping6_test $h1 2001:db8:1::4 ": local->remote vid 10->vid 10"
+	ping6_test $h2 2001:db8:2::4 ": local->remote vid 20->vid 20"
+	ping6_test $h1 2001:db8:2::4 ": local->remote vid 10->vid 20"
+	ping6_test $h2 2001:db8:1::4 ": local->remote vid 20->vid 10"
+}
+
+arp_decap()
+{
+	# Repeat the ping tests, but without populating the neighbours. This
+	# makes sure we correctly decapsulate ARP packets
+	log_info "deleting neighbours from vlan interfaces"
+
+	ip neigh del 2001:db8:1::4 dev vlan10
+	ip neigh del 2001:db8:2::4 dev vlan20
+
+	ping_ipv6
+
+	ip neigh replace 2001:db8:1::4 lladdr $(in_ns ns1 mac_get w2) \
+		nud noarp dev vlan10 extern_learn
+	ip neigh replace 2001:db8:2::4 lladdr $(in_ns ns1 mac_get w4) \
+		nud noarp dev vlan20 extern_learn
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
new file mode 100755
index 000000000000..b43816dd998c
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh
@@ -0,0 +1,807 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+                               +----------------------+
+# | H1 (vrf)           |                               |             H2 (vrf) |
+# |    + $h1           |                               |  + $h2               |
+# |    | 192.0.2.1/28  |                               |  | 192.0.2.2/28      |
+# +----|---------------+                               +--|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1d)             + $swp2           | |
+# | |                                                                       | |
+# | |  + vx1 (vxlan)                                                        | |
+# | |    local 192.0.2.17                                                   | |
+# | |    remote 192.0.2.34 192.0.2.50                                       | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  192.0.2.32/28 via 192.0.2.18                                             |
+# |  192.0.2.48/28 via 192.0.2.18                                             |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 192.0.2.17/28                                                        |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRP2 (vrf) |
+# |    + $rp2                                                   |
+# |      192.0.2.18/28                                          |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)      |
+# |    | 192.0.2.33/28                         | 192.0.2.49/28  |
+# +----|---------------------------------------|----------------+
+#      |                                       |
+# +----|------------------------------+   +----|------------------------------+
+# |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
+# |      192.0.2.34/28                |   |      192.0.2.50/28                |
+# |                                   |   |                                   |
+# |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
+# |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
+# |                                   |   |                                   |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# | |                  BR2 (802.1d) | |   | |                  BR2 (802.1d) | |
+# | |  + vx2 (vxlan)                | |   | |  + vx2 (vxlan)                | |
+# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
+# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
+# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
+# | |    id 1000 dstport $VXPORT    | |   | |    id 1000 dstport $VXPORT    | |
+# | |                               | |   | |                               | |
+# | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# |    |                              |   |    |                              |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# | |  |                  VW2 (vrf) | |   | |  |                  VW2 (vrf) | |
+# | |  + w2 (veth)                  | |   | |  + w2 (veth)                  | |
+# | |    192.0.2.3/28               | |   | |    192.0.2.4/28               | |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# +-----------------------------------+   +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+	test_flood
+	test_unicast
+	test_ttl
+	test_tos
+	test_ecn_encap
+	test_ecn_decap
+	reapply_config
+	ping_ipv4
+	test_flood
+	test_unicast
+	test_learning
+    "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28
+	tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/28
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 192.0.2.17/28
+
+	ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+	ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+	ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+	ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+	ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+
+	ip link add name vx1 type vxlan id 1000		\
+		local 192.0.2.17 dstport "$VXPORT"	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx1 up
+
+	ip link set dev vx1 master br1
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	ip link set dev vx1 nomaster
+	ip link set dev vx1 down
+	ip link del dev vx1
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 192.0.2.18/28
+	__simple_if_init v1 v$rp2 192.0.2.33/28
+	__simple_if_init v3 v$rp2 192.0.2.49/28
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 192.0.2.49/28
+	__simple_if_fini v1 192.0.2.33/28
+	simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/28
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+
+	ip link add name vx2 type vxlan id 1000 local $in_addr dstport "$VXPORT"
+	ip link set dev vx2 up
+	bridge fdb append dev vx2 00:00:00:00:00:00 dst 192.0.2.17 self
+	bridge fdb append dev vx2 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx2 master br2
+	tc qdisc add dev vx2 clsact
+
+	simple_if_init w2 $host_addr/28
+
+	ip route add 192.0.2.16/28 nexthop via $nh_addr
+	ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+# For the first round of tests, vx1 is the first device to get attached to the
+# bridge, and that at the point that the local IP is already configured. Try the
+# other scenario of attaching the device to an already-offloaded bridge, and
+# only then attach the local IP.
+reapply_config()
+{
+	echo "Reapplying configuration"
+
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+	rp1_unset_addr
+	ip link set dev vx1 nomaster
+	sleep 5
+
+	ip link set dev vx1 master br1
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 192.0.2.50 self
+	sleep 1
+	rp1_set_addr
+	sleep 5
+}
+
+ping_ipv4()
+{
+	ping_test $h1 192.0.2.2 ": local->local"
+	ping_test $h1 192.0.2.3 ": local->remote 1"
+	ping_test $h1 192.0.2.4 ": local->remote 2"
+}
+
+maybe_in_ns()
+{
+	echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+	local add_del=$1; shift
+	local dev=$1; shift
+	local ns=$1; shift
+
+	# Putting the ICMP capture both to HW and to SW will end up
+	# double-counting the packets that are trapped to slow path, such as for
+	# the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+	# but with skip_hw, the flooded packets are not counted at all, because
+	# those are dropped due to MAC address mismatch; and skip_sw is a no-go
+	# for veth-based topologies.
+	#
+	# So try to install with skip_sw and fall back to skip_sw if that fails.
+
+	$(maybe_in_ns $ns) __icmp_capture_add_del          \
+			   $add_del 100 "" $dev skip_sw 2>/dev/null || \
+	$(maybe_in_ns $ns) __icmp_capture_add_del          \
+			   $add_del 100 "" $dev skip_hw
+}
+
+flood_counter_install()
+{
+	__flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+	__flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+	local dev=$1; shift
+	local ns=$1; shift
+
+	$(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+	local counters=("${@}")
+	local counter
+
+	for counter in "${counters[@]}"; do
+		flood_fetch_stat $counter
+	done
+}
+
+vxlan_flood_test()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local -a expects=("${@}")
+
+	local -a counters=($h2 "vx2 ns1" "vx2 ns2")
+	local counter
+	local key
+
+	for counter in "${counters[@]}"; do
+		flood_counter_install $counter
+	done
+
+	local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+	$MZ $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
+	sleep 1
+	local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+	for key in ${!t0s[@]}; do
+		local delta=$((t1s[$key] - t0s[$key]))
+		local expect=${expects[$key]}
+
+		((expect == delta))
+		check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+	done
+
+	for counter in "${counters[@]}"; do
+		flood_counter_uninstall $counter
+	done
+}
+
+__test_flood()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	vxlan_flood_test $mac $dst 10 10 10
+
+	log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+	__test_flood de:ad:be:ef:13:37 192.0.2.100 "flood"
+
+	# Add an entry with arbitrary destination IP. Verify that packets are
+	# not duplicated (this can happen if hardware floods the packets, and
+	# then traps them due to misconfiguration, so software data path repeats
+	# flooding and resends packets).
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 198.51.100.1 self
+	__test_flood de:ad:be:ef:13:37 192.0.2.100 "flood, unresolved FDB entry"
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 198.51.100.1 self
+}
+
+vxlan_fdb_add_del()
+{
+	local add_del=$1; shift
+	local mac=$1; shift
+	local dev=$1; shift
+	local dst=$1; shift
+
+	bridge fdb $add_del dev $dev $mac self static permanent \
+		${dst:+dst} $dst 2>/dev/null
+	bridge fdb $add_del dev $dev $mac master static 2>/dev/null
+}
+
+__test_unicast()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local hit_idx=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	local -a expects=(0 0 0)
+	expects[$hit_idx]=10
+
+	vxlan_flood_test $mac $dst "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+	local -a targets=("$h2_mac $h2"
+			  "$r1_mac vx1 192.0.2.34"
+			  "$r2_mac vx1 192.0.2.50")
+	local target
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add $target
+	done
+
+	__test_unicast $h2_mac 192.0.2.2 0 "local MAC unicast"
+	__test_unicast $r1_mac 192.0.2.3 1 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 192.0.2.4 2 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del $target
+	done
+}
+
+vxlan_ping_test()
+{
+	local ping_dev=$1; shift
+	local ping_dip=$1; shift
+	local ping_args=$1; shift
+	local capture_dev=$1; shift
+	local capture_dir=$1; shift
+	local capture_pref=$1; shift
+	local expect=$1; shift
+
+	local t0=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+	ping_do $ping_dev $ping_dip "$ping_args"
+	local t1=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+	local delta=$((t1 - t0))
+
+	# Tolerate a couple stray extra packets.
+	((expect <= delta && delta <= expect + 5))
+	check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
+}
+
+test_ttl()
+{
+	RET=0
+
+	tc filter add dev v1 egress pref 77 prot ip \
+		flower ip_ttl 99 action pass
+	vxlan_ping_test $h1 192.0.2.3 "" v1 egress 77 10
+	tc filter del dev v1 egress pref 77 prot ip
+
+	log_test "VXLAN: envelope TTL"
+}
+
+test_tos()
+{
+	RET=0
+
+	tc filter add dev v1 egress pref 77 prot ip \
+		flower ip_tos 0x14 action pass
+	vxlan_ping_test $h1 192.0.2.3 "-Q 0x14" v1 egress 77 10
+	vxlan_ping_test $h1 192.0.2.3 "-Q 0x18" v1 egress 77 0
+	tc filter del dev v1 egress pref 77 prot ip
+
+	log_test "VXLAN: envelope TOS inheritance"
+}
+
+__test_ecn_encap()
+{
+	local q=$1; shift
+	local tos=$1; shift
+
+	RET=0
+
+	tc filter add dev v1 egress pref 77 prot ip \
+		flower ip_tos $tos ip_proto udp dst_port $VXPORT action pass
+	sleep 1
+	vxlan_ping_test $h1 192.0.2.3 "-Q $q" v1 egress 77 10
+	tc filter del dev v1 egress pref 77 prot ip
+
+	log_test "VXLAN: ECN encap: $q->$tos"
+}
+
+test_ecn_encap()
+{
+	# In accordance with INET_ECN_encapsulate()
+	__test_ecn_encap 0x00 0x00
+	__test_ecn_encap 0x01 0x01
+	__test_ecn_encap 0x02 0x02
+	__test_ecn_encap 0x03 0x02
+}
+
+vxlan_encapped_ping_do()
+{
+	local count=$1; shift
+	local dev=$1; shift
+	local next_hop_mac=$1; shift
+	local dest_ip=$1; shift
+	local dest_mac=$1; shift
+	local inner_tos=$1; shift
+	local outer_tos=$1; shift
+
+	$MZ $dev -c $count -d 100msec -q \
+		-b $next_hop_mac -B $dest_ip \
+		-t udp tos=$outer_tos,sp=23456,dp=$VXPORT,p=$(:
+		    )"08:"$(                      : VXLAN flags
+		    )"00:00:00:"$(                : VXLAN reserved
+		    )"00:03:e8:"$(                : VXLAN VNI
+		    )"00:"$(                      : VXLAN reserved
+		    )"$dest_mac:"$(               : ETH daddr
+		    )"$(mac_get w2):"$(           : ETH saddr
+		    )"08:00:"$(                   : ETH type
+		    )"45:"$(                      : IP version + IHL
+		    )"$inner_tos:"$(              : IP TOS
+		    )"00:54:"$(                   : IP total length
+		    )"99:83:"$(                   : IP identification
+		    )"40:00:"$(                   : IP flags + frag off
+		    )"40:"$(                      : IP TTL
+		    )"01:"$(                      : IP proto
+		    )"00:00:"$(                   : IP header csum
+		    )"c0:00:02:03:"$(             : IP saddr: 192.0.2.3
+		    )"c0:00:02:01:"$(             : IP daddr: 192.0.2.1
+		    )"08:"$(                      : ICMP type
+		    )"00:"$(                      : ICMP code
+		    )"8b:f2:"$(                   : ICMP csum
+		    )"1f:6a:"$(                   : ICMP request identifier
+		    )"00:01:"$(                   : ICMP request sequence number
+		    )"4f:ff:c5:5b:00:00:00:00:"$( : ICMP payload
+		    )"6d:74:0b:00:00:00:00:00:"$( :
+		    )"10:11:12:13:14:15:16:17:"$( :
+		    )"18:19:1a:1b:1c:1d:1e:1f:"$( :
+		    )"20:21:22:23:24:25:26:27:"$( :
+		    )"28:29:2a:2b:2c:2d:2e:2f:"$( :
+		    )"30:31:32:33:34:35:36:37"
+}
+export -f vxlan_encapped_ping_do
+
+vxlan_encapped_ping_test()
+{
+	local ping_dev=$1; shift
+	local nh_dev=$1; shift
+	local ping_dip=$1; shift
+	local inner_tos=$1; shift
+	local outer_tos=$1; shift
+	local stat_get=$1; shift
+	local expect=$1; shift
+
+	local t0=$($stat_get)
+
+	in_ns ns1 \
+		vxlan_encapped_ping_do 10 $ping_dev $(mac_get $nh_dev) \
+			$ping_dip $(mac_get $h1) \
+			$inner_tos $outer_tos
+
+	local t1=$($stat_get)
+	local delta=$((t1 - t0))
+
+	# Tolerate a couple stray extra packets.
+	((expect <= delta && delta <= expect + 2))
+	check_err $? "Expected to capture $expect packets, got $delta."
+}
+export -f vxlan_encapped_ping_test
+
+__test_ecn_decap()
+{
+	local orig_inner_tos=$1; shift
+	local orig_outer_tos=$1; shift
+	local decapped_tos=$1; shift
+
+	RET=0
+
+	tc filter add dev $h1 ingress pref 77 prot ip \
+		flower ip_tos $decapped_tos action drop
+	sleep 1
+	vxlan_encapped_ping_test v2 v1 192.0.2.17 \
+				 $orig_inner_tos $orig_outer_tos \
+				 "tc_rule_stats_get $h1 77 ingress" 10
+	tc filter del dev $h1 ingress pref 77
+
+	log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->$decapped_tos"
+}
+
+test_ecn_decap_error()
+{
+	local orig_inner_tos=00
+	local orig_outer_tos=03
+
+	RET=0
+
+	vxlan_encapped_ping_test v2 v1 192.0.2.17 \
+				 $orig_inner_tos $orig_outer_tos \
+				 "link_stats_rx_errors_get vx1" 10
+
+	log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->error"
+}
+
+test_ecn_decap()
+{
+	# In accordance with INET_ECN_decapsulate()
+	__test_ecn_decap 00 00 0x00
+	__test_ecn_decap 00 01 0x00
+	__test_ecn_decap 00 02 0x00
+	# 00 03 is tested in test_ecn_decap_error()
+	__test_ecn_decap 01 00 0x01
+	__test_ecn_decap 01 01 0x01
+	__test_ecn_decap 01 02 0x01
+	__test_ecn_decap 01 03 0x03
+	__test_ecn_decap 02 00 0x02
+	__test_ecn_decap 02 01 0x01
+	__test_ecn_decap 02 02 0x02
+	__test_ecn_decap 02 03 0x03
+	__test_ecn_decap 03 00 0x03
+	__test_ecn_decap 03 01 0x03
+	__test_ecn_decap 03 02 0x03
+	__test_ecn_decap 03 03 0x03
+	test_ecn_decap_error
+}
+
+test_learning()
+{
+	local mac=de:ad:be:ef:13:37
+	local dst=192.0.2.100
+
+	# Enable learning on the VxLAN device and set ageing time to 30 seconds
+	ip link set dev br1 type bridge ageing_time 3000
+	ip link set dev vx1 type vxlan ageing 30
+	ip link set dev vx1 type vxlan learning
+	reapply_config
+
+	# Check that flooding works
+	RET=0
+
+	vxlan_flood_test $mac $dst 10 10 10
+
+	log_test "VXLAN: flood before learning"
+
+	# Send a packet with source mac set to $mac from host w2 and check that
+	# a corresponding entry is created in VxLAN device vx1
+	RET=0
+
+	in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+		-t icmp -q
+	sleep 1
+
+	bridge fdb show brport vx1 | grep $mac | grep -q self
+	check_err $?
+	bridge fdb show brport vx1 | grep $mac | grep -q -v self
+	check_err $?
+
+	log_test "VXLAN: show learned FDB entry"
+
+	# Repeat first test and check that packets only reach host w2 in ns1
+	RET=0
+
+	vxlan_flood_test $mac $dst 0 10 0
+
+	log_test "VXLAN: learned FDB entry"
+
+	# Delete the learned FDB entry from the VxLAN and bridge devices and
+	# check that packets are flooded
+	RET=0
+
+	bridge fdb del dev vx1 $mac master self
+	sleep 1
+
+	vxlan_flood_test $mac $dst 10 10 10
+
+	log_test "VXLAN: deletion of learned FDB entry"
+
+	# Re-learn the first FDB entry and check that it is correctly aged-out
+	RET=0
+
+	in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+		-t icmp -q
+	sleep 1
+
+	bridge fdb show brport vx1 | grep $mac | grep -q self
+	check_err $?
+	bridge fdb show brport vx1 | grep $mac | grep -q -v self
+	check_err $?
+
+	vxlan_flood_test $mac $dst 0 10 0
+
+	# The entry should age out when it only forwards traffic
+	$MZ $h1 -c 50 -d 1sec -p 64 -b $mac -B $dst -t icmp -q &
+	sleep 60
+
+	bridge fdb show brport vx1 | grep $mac | grep -q self
+	check_fail $?
+	bridge fdb show brport vx1 | grep $mac | grep -q -v self
+	check_fail $?
+
+	vxlan_flood_test $mac $dst 10 10 10
+
+	log_test "VXLAN: Ageing of learned FDB entry"
+
+	# Toggle learning on the bridge port and check that the bridge's FDB
+	# is populated only when it should
+	RET=0
+
+	ip link set dev vx1 type bridge_slave learning off
+
+	in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+		-t icmp -q
+	sleep 1
+
+	bridge fdb show brport vx1 | grep $mac | grep -q -v self
+	check_fail $?
+
+	ip link set dev vx1 type bridge_slave learning on
+
+	in_ns ns1 $MZ w2 -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff -B $dst \
+		-t icmp -q
+	sleep 1
+
+	bridge fdb show brport vx1 | grep $mac | grep -q -v self
+	check_err $?
+
+	log_test "VXLAN: learning toggling on bridge port"
+
+	# Restore previous settings
+	ip link set dev vx1 type vxlan nolearning
+	ip link set dev vx1 type vxlan ageing 300
+	ip link set dev br1 type bridge ageing_time 30000
+	reapply_config
+}
+
+test_all()
+{
+	echo "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_ipv6.sh
new file mode 100755
index 000000000000..a603f7b0a08f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_ipv6.sh
@@ -0,0 +1,804 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# |    + $h1              |                          |    + $h2               |
+# |    | 192.0.2.1/28     |                          |    | 192.0.2.2/28      |
+# |    | 2001:db8:1::1/64 |                          |    | 2001:db8:1::2/64  |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1d)             + $swp2           | |
+# | |                                                                       | |
+# | |  + vx1 (vxlan)                                                        | |
+# | |    local 2001:db8:3::1                                                | |
+# | |    remote 2001:db8:4::1 2001:db8:5::1                                 | |
+# | |    id 1000 dstport $VXPORT                                            | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:4::0/64 via 2001:db8:3::2                                       |
+# |  2001:db8:5::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------+
+# |    |                                             VRP2 (vrf)   |
+# |    + $rp2                                                     |
+# |      2001:db8:3::2/64                                         |
+# |                                                               |  (maybe) HW
+# =============================================================================
+# |                                                               |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)        |
+# |    | 2001:db8:4::2/64                      | 2001:db8:5::2/64 |
+# +----|---------------------------------------|------------------+
+#      |                                       |
+# +----|--------------------------------+ +----|-------------------------------+
+# |    + v2 (veth)        NS1 (netns)   | |    + v4 (veth)        NS2 (netns)  |
+# |      2001:db8:4::1/64               | |      2001:db8:5::1/64              |
+# |                                     | |                                    |
+# | 2001:db8:3::0/64 via 2001:db8:4::2  | | 2001:db8:3::0/64 via 2001:db8:5::2 |
+# | 2001:db8:5::1/128 via 2001:db8:4::2 | | 2001:db8:4::1/128 via              |
+# |                                     | |         2001:db8:5::2              |
+# |                                     | |                                    |
+# | +-------------------------------+   | | +-------------------------------+  |
+# | |                  BR2 (802.1d) |   | | |                  BR2 (802.1d) |  |
+# | |  + vx2 (vxlan)                |   | | |  + vx2 (vxlan)                |  |
+# | |    local 2001:db8:4::1        |   | | |    local 2001:db8:5::1        |  |
+# | |    remote 2001:db8:3::1       |   | | |    remote 2001:db8:3::1       |  |
+# | |    remote 2001:db8:5::1       |   | | |    remote 2001:db8:4::1       |  |
+# | |    id 1000 dstport $VXPORT    |   | | |    id 1000 dstport $VXPORT    |  |
+# | |                               |   | | |                               |  |
+# | |  + w1 (veth)                  |   | | |  + w1 (veth)                  |  |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# |    |                                | |    |                               |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# | |  + w2 (veth)        VW2 (vrf) |   | | |  + w2 (veth)        VW2 (vrf) |  |
+# | |    192.0.2.3/28               |   | | |    192.0.2.4/28               |  |
+# | |    2001:db8:1::3/64           |   | | |    2001:db8:1::4/64           |  |
+# | +-------------------------------+   | | +-------------------------------+  |
+# +-------------------------------------+ +------------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+	ping_ipv6
+	test_flood
+	test_unicast
+	test_ttl
+	test_tos
+	test_ecn_encap
+	test_ecn_decap
+	reapply_config
+	ping_ipv4
+	ping_ipv6
+	test_flood
+	test_unicast
+"}
+
+NUM_NETIFS=6
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/28 2001:db8:1::1/64
+	tc qdisc add dev $h1 clsact
+}
+
+h1_destroy()
+{
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1 192.0.2.1/28 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/28 2001:db8:1::2/64
+	tc qdisc add dev $h2 clsact
+}
+
+h2_destroy()
+{
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2 192.0.2.2/28 2001:db8:1::2/64
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 2001:db8:3::1/64
+
+	ip route add 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+	ip route add 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+}
+
+rp1_unset_addr()
+{
+	ip route del 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+	ip route del 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+
+	ip address del dev $rp1 2001:db8:3::1/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+	tc qdisc add dev $rp1 clsact
+
+	ip link add name vx1 type vxlan id 1000	local 2001:db8:3::1 \
+		dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+		tos inherit ttl 100
+	ip link set dev vx1 up
+
+	ip link set dev vx1 master br1
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	ip link set dev vx1 nomaster
+	ip link set dev vx1 down
+	ip link del dev vx1
+
+	tc qdisc del dev $rp1 clsact
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 2001:db8:3::2/64
+	__simple_if_init v1 v$rp2 2001:db8:4::2/64
+	__simple_if_init v3 v$rp2 2001:db8:5::2/64
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 2001:db8:5::2/64
+	__simple_if_fini v1 2001:db8:4::2/64
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr_ipv4=$1; shift
+	local host_addr_ipv6=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/64
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+
+	ip link add name vx2 type vxlan id 1000 local $in_addr \
+		dstport "$VXPORT" udp6zerocsumrx
+	ip link set dev vx2 up
+	bridge fdb append dev vx2 00:00:00:00:00:00 dst 2001:db8:3::1 self
+	bridge fdb append dev vx2 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx2 master br2
+	tc qdisc add dev vx2 clsact
+
+	simple_if_init w2 $host_addr_ipv4/28 $host_addr_ipv6/64
+
+	ip route add 2001:db8:3::0/64 nexthop via $nh_addr
+	ip route add $other_in_addr/128 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 2001:db8:4::1 2001:db8:5::1 2001:db8:4::2 \
+	      192.0.2.3 2001:db8:1::3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 2001:db8:5::1 2001:db8:4::1 2001:db8:5::2 \
+	      192.0.2.4 2001:db8:1::4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+# For the first round of tests, vx1 is the first device to get
+# attached to the bridge, and at that point the local IP is already
+# configured. Try the other scenario of attaching the devices to a an
+# already-offloaded bridge, and only then assign the local IP.
+reapply_config()
+{
+	log_info "Reapplying configuration"
+
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	ip link set dev vx1 nomaster
+	rp1_unset_addr
+	sleep 5
+
+	ip link set dev vx1 master br1
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx1 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	sleep 1
+	rp1_set_addr
+	sleep 5
+}
+
+__ping_ipv4()
+{
+	local vxlan_local_ip=$1; shift
+	local vxlan_remote_ip=$1; shift
+	local src_ip=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local info=$1; shift
+
+	RET=0
+
+	tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+		flower ip_proto udp src_ip $vxlan_local_ip \
+		dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+	# Match ICMP-reply packets after decapsulation, so source IP is
+	# destination IP of the ping and destination IP is source IP of the
+	# ping.
+	tc filter add dev $swp1 egress protocol ip pref 1 handle 101 \
+		flower src_ip $dst_ip dst_ip $src_ip \
+		$TC_FLAG action pass
+
+	# Send 100 packets and verify that at least 100 packets hit the rule,
+	# to overcome ARP noise.
+	PING_COUNT=100 PING_TIMEOUT=20 ping_do $dev $dst_ip
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $rp1 egress" 101 10 100
+	check_err $? "Encapsulated packets did not go through router"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10 100
+	check_err $? "Decapsulated packets did not go through switch"
+
+	log_test "ping: $info"
+
+	tc filter del dev $swp1 egress
+	tc filter del dev $rp1 egress
+}
+
+ping_ipv4()
+{
+	RET=0
+
+	local local_sw_ip=2001:db8:3::1
+	local remote_ns1_ip=2001:db8:4::1
+	local remote_ns2_ip=2001:db8:5::1
+	local h1_ip=192.0.2.1
+	local w2_ns1_ip=192.0.2.3
+	local w2_ns2_ip=192.0.2.4
+
+	ping_test $h1 192.0.2.2 ": local->local"
+
+	__ping_ipv4 $local_sw_ip $remote_ns1_ip $h1_ip $w2_ns1_ip $h1 \
+		"local->remote 1"
+	__ping_ipv4 $local_sw_ip $remote_ns2_ip $h1_ip $w2_ns2_ip $h1 \
+		"local->remote 2"
+}
+
+__ping_ipv6()
+{
+	local vxlan_local_ip=$1; shift
+	local vxlan_remote_ip=$1; shift
+	local src_ip=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local info=$1; shift
+
+	RET=0
+
+	tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+		flower ip_proto udp src_ip $vxlan_local_ip \
+		dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+	# Match ICMP-reply packets after decapsulation, so source IP is
+	# destination IP of the ping and destination IP is source IP of the
+	# ping.
+	tc filter add dev $swp1 egress protocol ipv6 pref 1 handle 101 \
+		flower src_ip $dst_ip dst_ip $src_ip $TC_FLAG action pass
+
+	# Send 100 packets and verify that at least 100 packets hit the rule,
+	# to overcome neighbor discovery noise.
+	PING_COUNT=100 PING_TIMEOUT=20 ping6_do $dev $dst_ip
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $rp1 egress" 101 100
+	check_err $? "Encapsulated packets did not go through router"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 100
+	check_err $? "Decapsulated packets did not go through switch"
+
+	log_test "ping6: $info"
+
+	tc filter del dev $swp1 egress
+	tc filter del dev $rp1 egress
+}
+
+ping_ipv6()
+{
+	RET=0
+
+	local local_sw_ip=2001:db8:3::1
+	local remote_ns1_ip=2001:db8:4::1
+	local remote_ns2_ip=2001:db8:5::1
+	local h1_ip=2001:db8:1::1
+	local w2_ns1_ip=2001:db8:1::3
+	local w2_ns2_ip=2001:db8:1::4
+
+	ping6_test $h1 2001:db8:1::2 ": local->local"
+
+	__ping_ipv6 $local_sw_ip $remote_ns1_ip $h1_ip $w2_ns1_ip $h1 \
+		"local->remote 1"
+	__ping_ipv6 $local_sw_ip $remote_ns2_ip $h1_ip $w2_ns2_ip $h1 \
+		"local->remote 2"
+}
+
+maybe_in_ns()
+{
+	echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+	local add_del=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local ns=$1; shift
+
+	# Putting the ICMP capture both to HW and to SW will end up
+	# double-counting the packets that are trapped to slow path, such as for
+	# the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+	# but with skip_hw, the flooded packets are not counted at all, because
+	# those are dropped due to MAC address mismatch; and skip_sw is a no-go
+	# for veth-based topologies.
+	#
+	# So try to install with skip_sw and fall back to skip_sw if that fails.
+
+	$(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+	   proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+	   icmpv6 skip_sw action pass 2>/dev/null || \
+	$(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+	   proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+	   icmpv6 skip_hw action pass
+}
+
+flood_counter_install()
+{
+	__flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+	__flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+	local dev=$1; shift
+	local ns=$1; shift
+
+	$(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+	local counters=("${@}")
+	local counter
+
+	for counter in "${counters[@]}"; do
+		flood_fetch_stat $counter
+	done
+}
+
+vxlan_flood_test()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local -a expects=("${@}")
+
+	local -a counters=($h2 "vx2 ns1" "vx2 ns2")
+	local counter
+	local key
+
+	for counter in "${counters[@]}"; do
+		flood_counter_install $dst $counter
+	done
+
+	local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+	$MZ -6 $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp6 type=128 -q
+	sleep 1
+	local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+	for key in ${!t0s[@]}; do
+		local delta=$((t1s[$key] - t0s[$key]))
+		local expect=${expects[$key]}
+
+		((expect == delta))
+		check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+	done
+
+	for counter in "${counters[@]}"; do
+		flood_counter_uninstall $dst $counter
+	done
+}
+
+__test_flood()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	vxlan_flood_test $mac $dst 10 10 10
+
+	log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+	__test_flood de:ad:be:ef:13:37 2001:db8:1::100 "flood"
+}
+
+vxlan_fdb_add_del()
+{
+	local add_del=$1; shift
+	local mac=$1; shift
+	local dev=$1; shift
+	local dst=$1; shift
+
+	bridge fdb $add_del dev $dev $mac self static permanent \
+		${dst:+dst} $dst 2>/dev/null
+	bridge fdb $add_del dev $dev $mac master static 2>/dev/null
+}
+
+__test_unicast()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local hit_idx=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	local -a expects=(0 0 0)
+	expects[$hit_idx]=10
+
+	vxlan_flood_test $mac $dst "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+	local -a targets=("$h2_mac $h2"
+			  "$r1_mac vx1 2001:db8:4::1"
+			  "$r2_mac vx1 2001:db8:5::1")
+	local target
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add $target
+	done
+
+	__test_unicast $h2_mac 2001:db8:1::2 0 "local MAC unicast"
+	__test_unicast $r1_mac 2001:db8:1::3 1 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 2001:db8:1::4 2 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del $target
+	done
+}
+
+vxlan_ping_test()
+{
+	local ping_dev=$1; shift
+	local ping_dip=$1; shift
+	local ping_args=$1; shift
+	local capture_dev=$1; shift
+	local capture_dir=$1; shift
+	local capture_pref=$1; shift
+	local expect=$1; shift
+
+	local t0=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+	ping6_do $ping_dev $ping_dip "$ping_args"
+	local t1=$(tc_rule_stats_get $capture_dev $capture_pref $capture_dir)
+	local delta=$((t1 - t0))
+
+	# Tolerate a couple stray extra packets.
+	((expect <= delta && delta <= expect + 5))
+	check_err $? "$capture_dev: Expected to capture $expect packets, got $delta."
+}
+
+test_ttl()
+{
+	RET=0
+
+	tc filter add dev v1 egress pref 77 protocol ipv6 \
+		flower ip_ttl 99 action pass
+	vxlan_ping_test $h1 2001:db8:1::3 "" v1 egress 77 10
+	tc filter del dev v1 egress pref 77 protocol ipv6
+
+	log_test "VXLAN: envelope TTL"
+}
+
+test_tos()
+{
+	RET=0
+
+	tc filter add dev v1 egress pref 77 protocol ipv6 \
+		flower ip_tos 0x14 action pass
+	vxlan_ping_test $h1 2001:db8:1::3 "-Q 0x14" v1 egress 77 10
+	vxlan_ping_test $h1 2001:db8:1::3 "-Q 0x18" v1 egress 77 0
+	tc filter del dev v1 egress pref 77 protocol ipv6
+
+	log_test "VXLAN: envelope TOS inheritance"
+}
+
+__test_ecn_encap()
+{
+	local q=$1; shift
+	local tos=$1; shift
+
+	RET=0
+
+	tc filter add dev v1 egress pref 77 protocol ipv6 \
+		flower ip_tos $tos ip_proto udp dst_port $VXPORT action pass
+	sleep 1
+	vxlan_ping_test $h1 2001:db8:1::3 "-Q $q" v1 egress 77 10
+	tc filter del dev v1 egress pref 77 protocol ipv6
+
+	log_test "VXLAN: ECN encap: $q->$tos"
+}
+
+test_ecn_encap()
+{
+	# In accordance with INET_ECN_encapsulate()
+	__test_ecn_encap 0x00 0x00
+	__test_ecn_encap 0x01 0x01
+	__test_ecn_encap 0x02 0x02
+	__test_ecn_encap 0x03 0x02
+}
+
+vxlan_encapped_ping_do()
+{
+	local count=$1; shift
+	local dev=$1; shift
+	local next_hop_mac=$1; shift
+	local dest_ip=$1; shift
+	local dest_mac=$1; shift
+	local inner_tos=$1; shift
+	local outer_tos=$1; shift
+	local saddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+	local daddr="20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01"
+
+	$MZ -6 $dev -c $count -d 100msec -q \
+		-b $next_hop_mac -B $dest_ip \
+		-t udp tos=$outer_tos,sp=23456,dp=$VXPORT,p=$(:
+		    )"08:"$(                      : VXLAN flags
+		    )"00:00:00:"$(                : VXLAN reserved
+		    )"00:03:e8:"$(                : VXLAN VNI
+		    )"00:"$(                      : VXLAN reserved
+		    )"$dest_mac:"$(               : ETH daddr
+		    )"$(mac_get w2):"$(           : ETH saddr
+		    )"86:dd:"$(                   : ETH type
+		    )"6"$(			  : IP version
+		    )"$inner_tos"$(               : Traffic class
+		    )"0:00:00:"$(                 : Flow label
+		    )"00:08:"$(                   : Payload length
+		    )"3a:"$(                      : Next header
+		    )"04:"$(                      : Hop limit
+		    )"$saddr:"$(		  : IP saddr
+		    )"$daddr:"$(		  : IP daddr
+		    )"80:"$(			  : ICMPv6.type
+		    )"00:"$(			  : ICMPv6.code
+		    )"00:"$(			  : ICMPv6.checksum
+		    )
+}
+export -f vxlan_encapped_ping_do
+
+vxlan_encapped_ping_test()
+{
+	local ping_dev=$1; shift
+	local nh_dev=$1; shift
+	local ping_dip=$1; shift
+	local inner_tos=$1; shift
+	local outer_tos=$1; shift
+	local stat_get=$1; shift
+	local expect=$1; shift
+
+	local t0=$($stat_get)
+
+	in_ns ns1 \
+		vxlan_encapped_ping_do 10 $ping_dev $(mac_get $nh_dev) \
+			$ping_dip $(mac_get $h1) \
+			$inner_tos $outer_tos
+	sleep 1
+	local t1=$($stat_get)
+	local delta=$((t1 - t0))
+
+	# Tolerate a couple stray extra packets.
+	((expect <= delta && delta <= expect + 2))
+	check_err $? "Expected to capture $expect packets, got $delta."
+}
+export -f vxlan_encapped_ping_test
+
+__test_ecn_decap()
+{
+	local orig_inner_tos=$1; shift
+	local orig_outer_tos=$1; shift
+	local decapped_tos=$1; shift
+
+	RET=0
+
+	tc filter add dev $h1 ingress pref 77 protocol ipv6 \
+		flower src_ip 2001:db8:1::3 dst_ip 2001:db8:1::1 \
+		ip_tos $decapped_tos action drop
+	sleep 1
+	vxlan_encapped_ping_test v2 v1 2001:db8:3::1 \
+				 $orig_inner_tos $orig_outer_tos \
+				 "tc_rule_stats_get $h1 77 ingress" 10
+	tc filter del dev $h1 ingress pref 77
+
+	log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->$decapped_tos"
+}
+
+test_ecn_decap_error()
+{
+	local orig_inner_tos="0:0"
+	local orig_outer_tos=03
+
+	RET=0
+
+	vxlan_encapped_ping_test v2 v1 2001:db8:3::1 \
+				 $orig_inner_tos $orig_outer_tos \
+				 "link_stats_rx_errors_get vx1" 10
+
+	log_test "VXLAN: ECN decap: $orig_outer_tos/$orig_inner_tos->error"
+}
+
+test_ecn_decap()
+{
+	# In accordance with INET_ECN_decapsulate()
+	__test_ecn_decap "0:0" 00 0x00
+	__test_ecn_decap "0:0" 01 0x00
+	__test_ecn_decap "0:0" 02 0x00
+	# 00 03 is tested in test_ecn_decap_error()
+	__test_ecn_decap "0:1" 00 0x01
+	__test_ecn_decap "0:1" 01 0x01
+	__test_ecn_decap "0:1" 02 0x01
+	__test_ecn_decap "0:1" 03 0x03
+	__test_ecn_decap "0:2" 00 0x02
+	__test_ecn_decap "0:2" 01 0x01
+	__test_ecn_decap "0:2" 02 0x02
+	__test_ecn_decap "0:2" 03 0x03
+	__test_ecn_decap "0:3" 00 0x03
+	__test_ecn_decap "0:3" 01 0x03
+	__test_ecn_decap "0:3" 02 0x03
+	__test_ecn_decap "0:3" 03 0x03
+	test_ecn_decap_error
+}
+
+test_all()
+{
+	log_info "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh
new file mode 100755
index 000000000000..3bf3da69195f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+	ping_ipv4
+"
+source vxlan_bridge_1d.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472_ipv6.sh
new file mode 100755
index 000000000000..00540317737a
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1d_port_8472_ipv6.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+"
+source vxlan_bridge_1d_ipv6.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh
new file mode 100755
index 000000000000..afc65647f673
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q.sh
@@ -0,0 +1,855 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# |  + $h1.10             |                          |  + $h2.10              |
+# |  | 192.0.2.1/28       |                          |  | 192.0.2.2/28        |
+# |  |                    |                          |  |                     |
+# |  | + $h1.20           |                          |  | + $h2.20            |
+# |  \ | 198.51.100.1/24  |                          |  \ | 198.51.100.2/24   |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1q)             + $swp2           | |
+# | |     vid 10                                             vid 10         | |
+# | |     vid 20                                             vid 20         | |
+# | |                                                                       | |
+# | |  + vx10 (vxlan)                        + vx20 (vxlan)                 | |
+# | |    local 192.0.2.17                      local 192.0.2.17             | |
+# | |    remote 192.0.2.34 192.0.2.50          remote 192.0.2.34 192.0.2.50 | |
+# | |    id 1000 dstport $VXPORT               id 2000 dstport $VXPORT      | |
+# | |    vid 10 pvid untagged                  vid 20 pvid untagged         | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  192.0.2.32/28 via 192.0.2.18                                             |
+# |  192.0.2.48/28 via 192.0.2.18                                             |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 192.0.2.17/28                                                        |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                                             VRP2 (vrf) |
+# |    + $rp2                                                   |
+# |      192.0.2.18/28                                          |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)      |
+# |    | 192.0.2.33/28                         | 192.0.2.49/28  |
+# +----|---------------------------------------|----------------+
+#      |                                       |
+# +----|------------------------------+   +----|------------------------------+
+# |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
+# |      192.0.2.34/28                |   |      192.0.2.50/28                |
+# |                                   |   |                                   |
+# |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
+# |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
+# |                                   |   |                                   |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# | |                  BR2 (802.1q) | |   | |                  BR2 (802.1q) | |
+# | |  + vx10 (vxlan)               | |   | |  + vx10 (vxlan)               | |
+# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
+# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
+# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
+# | |    id 1000 dstport $VXPORT    | |   | |    id 1000 dstport $VXPORT    | |
+# | |    vid 10 pvid untagged       | |   | |    vid 10 pvid untagged       | |
+# | |                               | |   | |                               | |
+# | |  + vx20 (vxlan)               | |   | |  + vx20 (vxlan)               | |
+# | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
+# | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
+# | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
+# | |    id 2000 dstport $VXPORT    | |   | |    id 2000 dstport $VXPORT    | |
+# | |    vid 20 pvid untagged       | |   | |    vid 20 pvid untagged       | |
+# | |                               | |   | |                               | |
+# | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
+# | |  | vid 10                     | |   | |  | vid 10                     | |
+# | |  | vid 20                     | |   | |  | vid 20                     | |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# |    |                              |   |    |                              |
+# | +--|----------------------------+ |   | +--|----------------------------+ |
+# | |  + w2 (veth)        VW2 (vrf) | |   | |  + w2 (veth)        VW2 (vrf) | |
+# | |  |\                           | |   | |  |\                           | |
+# | |  | + w2.10                    | |   | |  | + w2.10                    | |
+# | |  |   192.0.2.3/28             | |   | |  |   192.0.2.4/28             | |
+# | |  |                            | |   | |  |                            | |
+# | |  + w2.20                      | |   | |  + w2.20                      | |
+# | |    198.51.100.3/24            | |   | |    198.51.100.4/24            | |
+# | +-------------------------------+ |   | +-------------------------------+ |
+# +-----------------------------------+   +-----------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+	test_flood
+	test_unicast
+	reapply_config
+	ping_ipv4
+	test_flood
+	test_unicast
+	test_learning
+	test_pvid
+    "}
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+	vlan_create $h1 10 v$h1 192.0.2.1/28
+	vlan_create $h1 20 v$h1 198.51.100.1/24
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+	vlan_create $h2 10 v$h2 192.0.2.2/28
+	vlan_create $h2 20 v$h2 198.51.100.2/24
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 192.0.2.17/28
+
+	ip route add 192.0.2.32/28 nexthop via 192.0.2.18
+	ip route add 192.0.2.48/28 nexthop via 192.0.2.18
+}
+
+rp1_unset_addr()
+{
+	ip route del 192.0.2.48/28 nexthop via 192.0.2.18
+	ip route del 192.0.2.32/28 nexthop via 192.0.2.18
+
+	ip address del dev $rp1 192.0.2.17/28
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+
+	ip link add name vx10 type vxlan id 1000	\
+		local 192.0.2.17 dstport "$VXPORT"	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000	\
+		local 192.0.2.17 dstport "$VXPORT"	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan add vid 20 dev $swp1
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 10 dev $swp2
+	bridge vlan add vid 20 dev $swp2
+
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	bridge vlan del vid 20 dev $swp2
+	bridge vlan del vid 10 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 20 dev $swp1
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 192.0.2.18/28
+	__simple_if_init v1 v$rp2 192.0.2.33/28
+	__simple_if_init v3 v$rp2 192.0.2.49/28
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 192.0.2.49/28
+	__simple_if_fini v1 192.0.2.33/28
+	simple_if_fini $rp2 192.0.2.18/28
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr1=$1; shift
+	local host_addr2=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/28
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+
+	bridge vlan add vid 10 dev w1
+	bridge vlan add vid 20 dev w1
+
+	ip link add name vx10 type vxlan id 1000 local $in_addr \
+		dstport "$VXPORT"
+	ip link set dev vx10 up
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.17 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx10 master br2
+	tc qdisc add dev vx10 clsact
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000 local $in_addr \
+		dstport "$VXPORT"
+	ip link set dev vx20 up
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.17 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx20 master br2
+	tc qdisc add dev vx20 clsact
+
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	simple_if_init w2
+        vlan_create w2 10 vw2 $host_addr1/28
+        vlan_create w2 20 vw2 $host_addr2/24
+
+	ip route add 192.0.2.16/28 nexthop via $nh_addr
+	ip route add $other_in_addr/32 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 192.0.2.34 192.0.2.50 192.0.2.33 192.0.2.3 \
+	      198.51.100.3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 192.0.2.50 192.0.2.34 192.0.2.49 192.0.2.4 \
+	      198.51.100.4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+# For the first round of tests, vx10 and vx20 were the first devices to get
+# attached to the bridge, and that at the point that the local IP is already
+# configured. Try the other scenario of attaching these devices to a bridge
+# that already has local ports members, and only then assign the local IP.
+reapply_config()
+{
+	log_info "Reapplying configuration"
+
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+
+	ip link set dev vx20 nomaster
+	ip link set dev vx10 nomaster
+
+	rp1_unset_addr
+	sleep 5
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 192.0.2.50 self
+
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.34 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 192.0.2.50 self
+
+	rp1_set_addr
+	sleep 5
+}
+
+ping_ipv4()
+{
+	ping_test $h1.10 192.0.2.2 ": local->local vid 10"
+	ping_test $h1.20 198.51.100.2 ": local->local vid 20"
+	ping_test $h1.10 192.0.2.3 ": local->remote 1 vid 10"
+	ping_test $h1.10 192.0.2.4 ": local->remote 2 vid 10"
+	ping_test $h1.20 198.51.100.3 ": local->remote 1 vid 20"
+	ping_test $h1.20 198.51.100.4 ": local->remote 2 vid 20"
+}
+
+maybe_in_ns()
+{
+	echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+	local add_del=$1; shift
+	local dev=$1; shift
+	local ns=$1; shift
+
+	# Putting the ICMP capture both to HW and to SW will end up
+	# double-counting the packets that are trapped to slow path, such as for
+	# the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+	# but with skip_hw, the flooded packets are not counted at all, because
+	# those are dropped due to MAC address mismatch; and skip_sw is a no-go
+	# for veth-based topologies.
+	#
+	# So try to install with skip_sw and fall back to skip_sw if that fails.
+
+	$(maybe_in_ns $ns) __icmp_capture_add_del          \
+			   $add_del 100 "" $dev skip_sw 2>/dev/null || \
+	$(maybe_in_ns $ns) __icmp_capture_add_del          \
+			   $add_del 100 "" $dev skip_hw
+}
+
+flood_counter_install()
+{
+	__flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+	__flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+	local dev=$1; shift
+	local ns=$1; shift
+
+	$(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+	local counters=("${@}")
+	local counter
+
+	for counter in "${counters[@]}"; do
+		flood_fetch_stat $counter
+	done
+}
+
+vxlan_flood_test()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local vid=$1; shift
+	local -a expects=("${@}")
+
+	local -a counters=($h2 "vx10 ns1" "vx20 ns1" "vx10 ns2" "vx20 ns2")
+	local counter
+	local key
+
+	# Packets reach the local host tagged whereas they reach the VxLAN
+	# devices untagged. In order to be able to use the same filter for
+	# all counters, make sure the packets also reach the local host
+	# untagged
+	bridge vlan add vid $vid dev $swp2 untagged
+	for counter in "${counters[@]}"; do
+		flood_counter_install $counter
+	done
+
+	local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+	$MZ $h1 -Q $vid -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
+	sleep 1
+	local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+	for key in ${!t0s[@]}; do
+		local delta=$((t1s[$key] - t0s[$key]))
+		local expect=${expects[$key]}
+
+		((expect == delta))
+		check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+	done
+
+	for counter in "${counters[@]}"; do
+		flood_counter_uninstall $counter
+	done
+	bridge vlan add vid $vid dev $swp2
+}
+
+__test_flood()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local vid=$1; shift
+	local what=$1; shift
+	local -a expects=("${@}")
+
+	RET=0
+
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+	__test_flood de:ad:be:ef:13:37 192.0.2.100 10 "flood vlan 10" \
+		10 10 0 10 0
+	__test_flood ca:fe:be:ef:13:37 198.51.100.100 20 "flood vlan 20" \
+		10 0 10 0 10
+
+	# Add entries with arbitrary destination IP. Verify that packets are
+	# not duplicated (this can happen if hardware floods the packets, and
+	# then traps them due to misconfiguration, so software data path repeats
+	# flooding and resends packets).
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 203.0.113.1 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 203.0.113.2 self
+
+	__test_flood de:ad:be:ef:13:37 192.0.2.100 10 \
+		"flood vlan 10, unresolved FDB entry" 10 10 0 10 0
+	__test_flood ca:fe:be:ef:13:37 198.51.100.100 20 \
+		"flood vlan 20, unresolved FDB entry" 10 0 10 0 10
+
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 203.0.113.2 self
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 203.0.113.1 self
+}
+
+vxlan_fdb_add_del()
+{
+	local add_del=$1; shift
+	local vid=$1; shift
+	local mac=$1; shift
+	local dev=$1; shift
+	local dst=$1; shift
+
+	bridge fdb $add_del dev $dev $mac self static permanent \
+		${dst:+dst} $dst 2>/dev/null
+	bridge fdb $add_del dev $dev $mac master static vlan $vid 2>/dev/null
+}
+
+__test_unicast()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local hit_idx=$1; shift
+	local vid=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	local -a expects=(0 0 0 0 0)
+	expects[$hit_idx]=10
+
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+	local -a targets=("$h2_mac $h2"
+			  "$r1_mac vx10 192.0.2.34"
+			  "$r2_mac vx10 192.0.2.50")
+	local target
+
+	log_info "unicast vlan 10"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add 10 $target
+	done
+
+	__test_unicast $h2_mac 192.0.2.2 0 10 "local MAC unicast"
+	__test_unicast $r1_mac 192.0.2.3 1 10 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 192.0.2.4 3 10 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del 10 $target
+	done
+
+	log_info "unicast vlan 20"
+
+	targets=("$h2_mac $h2" "$r1_mac vx20 192.0.2.34" \
+		 "$r2_mac vx20 192.0.2.50")
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add 20 $target
+	done
+
+	__test_unicast $h2_mac 198.51.100.2 0 20 "local MAC unicast"
+	__test_unicast $r1_mac 198.51.100.3 2 20 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 198.51.100.4 4 20 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del 20 $target
+	done
+}
+
+test_pvid()
+{
+	local -a expects=(0 0 0 0 0)
+	local mac=de:ad:be:ef:13:37
+	local dst=192.0.2.100
+	local vid=10
+
+	# Check that flooding works
+	RET=0
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood before pvid off"
+
+	# Toggle PVID off and test that flood to remote hosts does not work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10
+
+	expects[0]=10; expects[1]=0; expects[3]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after pvid off"
+
+	# Toggle PVID on and test that flood to remote hosts does work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after pvid on"
+
+	# Add a new VLAN and test that it does not affect flooding
+	RET=0
+
+	bridge vlan add vid 30 dev vx10
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	bridge vlan del vid 30 dev vx10
+
+	log_test "VXLAN: flood after vlan add"
+
+	# Remove currently mapped VLAN and test that flood to remote hosts does
+	# not work
+	RET=0
+
+	bridge vlan del vid 10 dev vx10
+
+	expects[0]=10; expects[1]=0; expects[3]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after vlan delete"
+
+	# Re-add the VLAN and test that flood to remote hosts does work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after vlan re-add"
+}
+
+__test_learning()
+{
+	local -a expects=(0 0 0 0 0)
+	local mac=$1; shift
+	local dst=$1; shift
+	local vid=$1; shift
+	local idx1=$1; shift
+	local idx2=$1; shift
+	local vx=vx$vid
+
+	# Check that flooding works
+	RET=0
+
+	expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood before learning"
+
+	# Send a packet with source mac set to $mac from host w2 and check that
+	# a corresponding entry is created in the VxLAN device
+	RET=0
+
+	in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+		-B $dst -t icmp -q
+	sleep 1
+
+	bridge fdb show brport $vx | grep $mac | grep -q self
+	check_err $?
+	bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+		| grep -q -v self
+	check_err $?
+
+	log_test "VXLAN: show learned FDB entry"
+
+	# Repeat first test and check that packets only reach host w2 in ns1
+	RET=0
+
+	expects[0]=0; expects[$idx1]=10; expects[$idx2]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: learned FDB entry"
+
+	# Delete the learned FDB entry from the VxLAN and bridge devices and
+	# check that packets are flooded
+	RET=0
+
+	bridge fdb del dev $vx $mac master self vlan $vid
+	sleep 1
+
+	expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: deletion of learned FDB entry"
+
+	# Re-learn the first FDB entry and check that it is correctly aged-out
+	RET=0
+
+	in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+		-B $dst -t icmp -q
+	sleep 1
+
+	bridge fdb show brport $vx | grep $mac | grep -q self
+	check_err $?
+	bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+		| grep -q -v self
+	check_err $?
+
+	expects[0]=0; expects[$idx1]=10; expects[$idx2]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	sleep 60
+
+	bridge fdb show brport $vx | grep $mac | grep -q self
+	check_fail $?
+	bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+		| grep -q -v self
+	check_fail $?
+
+	expects[0]=10; expects[$idx1]=10; expects[$idx2]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: Ageing of learned FDB entry"
+
+	# Toggle learning on the bridge port and check that the bridge's FDB
+	# is populated only when it should
+	RET=0
+
+	ip link set dev $vx type bridge_slave learning off
+
+	in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+		-B $dst -t icmp -q
+	sleep 1
+
+	bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+		| grep -q -v self
+	check_fail $?
+
+	ip link set dev $vx type bridge_slave learning on
+
+	in_ns ns1 $MZ w2 -Q $vid -c 1 -p 64 -a $mac -b ff:ff:ff:ff:ff:ff \
+		-B $dst -t icmp -q
+	sleep 1
+
+	bridge fdb show brport $vx | grep $mac | grep "vlan $vid" \
+		| grep -q -v self
+	check_err $?
+
+	log_test "VXLAN: learning toggling on bridge port"
+}
+
+test_learning()
+{
+	local mac=de:ad:be:ef:13:37
+	local dst=192.0.2.100
+	local vid=10
+
+	# Enable learning on the VxLAN devices and set ageing time to 30 seconds
+	ip link set dev br1 type bridge ageing_time 3000
+	ip link set dev vx10 type vxlan ageing 30
+	ip link set dev vx10 type vxlan learning
+	ip link set dev vx20 type vxlan ageing 30
+	ip link set dev vx20 type vxlan learning
+	reapply_config
+
+	log_info "learning vlan 10"
+
+	__test_learning $mac $dst $vid 1 3
+
+	log_info "learning vlan 20"
+
+	mac=ca:fe:be:ef:13:37
+	dst=198.51.100.100
+	vid=20
+
+	__test_learning $mac $dst $vid 2 4
+
+	# Restore previous settings
+	ip link set dev vx20 type vxlan nolearning
+	ip link set dev vx20 type vxlan ageing 300
+	ip link set dev vx10 type vxlan nolearning
+	ip link set dev vx10 type vxlan ageing 300
+	ip link set dev br1 type bridge ageing_time 30000
+	reapply_config
+}
+
+test_all()
+{
+	log_info "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_ipv6.sh
new file mode 100755
index 000000000000..e83fde79f40d
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_ipv6.sh
@@ -0,0 +1,837 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------+                          +------------------------+
+# | H1 (vrf)              |                          | H2 (vrf)               |
+# | + $h1.10              |                          | + $h2.10               |
+# | | 192.0.2.1/28        |                          | | 192.0.2.2/28         |
+# | | 2001:db8:1::1/64    |                          | | 2001:db8:1::2/64     |
+# | |                     |                          | |                      |
+# | |  + $h1.20           |                          | |  + $h2.20            |
+# | \  | 198.51.100.1/24  |                          | \  | 198.51.100.2/24   |
+# |  \ | 2001:db8:2::1/64 |                          |  \ | 2001:db8:2::2/64  |
+# |   \|                  |                          |   \|                   |
+# |    + $h1              |                          |    + $h2               |
+# +----|------------------+                          +----|-------------------+
+#      |                                                  |
+# +----|--------------------------------------------------|-------------------+
+# | SW |                                                  |                   |
+# | +--|--------------------------------------------------|-----------------+ |
+# | |  + $swp1                   BR1 (802.1q)             + $swp2           | |
+# | |     vid 10                                             vid 10         | |
+# | |     vid 20                                             vid 20         | |
+# | |                                                                       | |
+# | |  + vx10 (vxlan)                        + vx20 (vxlan)                 | |
+# | |    local:                                local:                       | |
+# | |    2001:db8:3::1                         2001:db8:3::1                | |
+# | |    remote:                               remote:                      | |
+# | |    2001:db8:4::1 2001:db8:5::1           2001:db8:4::1 2001:db8:5::1  | |
+# | |    id 1000 dstport $VXPORT               id 2000 dstport $VXPORT      | |
+# | |    vid 10 pvid untagged                  vid 20 pvid untagged         | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |  2001:db8:4::0/64 via 2001:db8:3::2                                       |
+# |  2001:db8:5::0/64 via 2001:db8:3::2                                       |
+# |                                                                           |
+# |    + $rp1                                                                 |
+# |    | 2001:db8:3::1/64                                                     |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------+
+# |    |                                             VRP2 (vrf)   |
+# |    + $rp2                                                     |
+# |      2001:db8:3::2/64                                         |
+# |                                                               |  (maybe) HW
+# =============================================================================
+# |                                                               |  (likely) SW
+# |    + v1 (veth)                             + v3 (veth)        |
+# |    | 2001:db8:4::2/64                      | 2001:db8:5::2/64 |
+# +----|---------------------------------------|------------------+
+#      |                                       |
+# +----|--------------------------------+ +----|-------------------------------+
+# |    + v2 (veth)        NS1 (netns)   | |    + v4 (veth)        NS2 (netns)  |
+# |      2001:db8:4::1/64               | |      2001:db8:5::1/64              |
+# |                                     | |                                    |
+# | 2001:db8:3::0/64 via 2001:db8:4::2  | | 2001:db8:3::0/64 via 2001:db8:5::2 |
+# | 2001:db8:5::1/128 via 2001:db8:4::2 | | 2001:db8:4::1/128 via              |
+# |                                     | |         2001:db8:5::2              |
+# |                                     | |                                    |
+# | +-------------------------------+   | | +-------------------------------+  |
+# | |                  BR2 (802.1q) |   | | |                  BR2 (802.1q) |  |
+# | |  + vx10 (vxlan)               |   | | |  + vx10 (vxlan)               |  |
+# | |    local 2001:db8:4::1        |   | | |    local 2001:db8:5::1        |  |
+# | |    remote 2001:db8:3::1       |   | | |    remote 2001:db8:3::1       |  |
+# | |    remote 2001:db8:5::1       |   | | |    remote 2001:db8:4::1       |  |
+# | |    id 1000 dstport $VXPORT    |   | | |    id 1000 dstport $VXPORT    |  |
+# | |    vid 10 pvid untagged       |   | | |    vid 10 pvid untagged       |  |
+# | |                               |   | | |                               |  |
+# | |  + vx20 (vxlan)               |   | | |  + vx20 (vxlan)               |  |
+# | |    local 2001:db8:4::1        |   | | |    local 2001:db8:5::1        |  |
+# | |    remote 2001:db8:3::1       |   | | |    remote 2001:db8:3::1       |  |
+# | |    remote 2001:db8:5::1       |   | | |    remote 2001:db8:4::1       |  |
+# | |    id 2000 dstport $VXPORT    |   | | |    id 2000 dstport $VXPORT    |  |
+# | |    vid 20 pvid untagged       |   | | |    vid 20 pvid untagged       |  |
+# | |                               |   | | |                               |  |
+# | |  + w1 (veth)                  |   | | |  + w1 (veth)                  |  |
+# | |  | vid 10                     |   | | |  | vid 10                     |  |
+# | |  | vid 20                     |   | | |  | vid 20                     |  |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# |    |                                | |    |                               |
+# | +--|----------------------------+   | | +--|----------------------------+  |
+# | |  + w2 (veth)        VW2 (vrf) |   | | |  + w2 (veth)        VW2 (vrf) |  |
+# | |  |\                           |   | | |  |\                           |  |
+# | |  | + w2.10                    |   | | |  | + w2.10                    |  |
+# | |  |   192.0.2.3/28             |   | | |  |   192.0.2.4/28             |  |
+# | |  |   2001:db8:1::3/64         |   | | |  |   2001:db8:1::4/64         |  |
+# | |  |                            |   | | |  |                            |  |
+# | |  + w2.20                      |   | | |  + w2.20                      |  |
+# | |    198.51.100.3/24            |   | | |    198.51.100.4/24            |  |
+# | |    2001:db8:2::3/64           |   | | |    2001:db8:2::4/64           |  |
+# | +-------------------------------+   | | +-------------------------------+  |
+# +-------------------------------------+ +------------------------------------+
+
+: ${VXPORT:=4789}
+export VXPORT
+
+: ${ALL_TESTS:="
+	ping_ipv4
+	ping_ipv6
+	test_flood
+	test_unicast
+	reapply_config
+	ping_ipv4
+	ping_ipv6
+	test_flood
+	test_unicast
+	test_pvid
+	ping_ipv4
+	ping_ipv6
+	test_flood
+	test_pvid
+"}
+
+NUM_NETIFS=6
+source lib.sh
+source tc_common.sh
+
+h1_create()
+{
+	simple_if_init $h1
+	tc qdisc add dev $h1 clsact
+	vlan_create $h1 10 v$h1 192.0.2.1/28 2001:db8:1::1/64
+	vlan_create $h1 20 v$h1 198.51.100.1/24 2001:db8:2::1/64
+}
+
+h1_destroy()
+{
+	vlan_destroy $h1 20
+	vlan_destroy $h1 10
+	tc qdisc del dev $h1 clsact
+	simple_if_fini $h1
+}
+
+h2_create()
+{
+	simple_if_init $h2
+	tc qdisc add dev $h2 clsact
+	vlan_create $h2 10 v$h2 192.0.2.2/28 2001:db8:1::2/64
+	vlan_create $h2 20 v$h2 198.51.100.2/24 2001:db8:2::2/64
+}
+
+h2_destroy()
+{
+	vlan_destroy $h2 20
+	vlan_destroy $h2 10
+	tc qdisc del dev $h2 clsact
+	simple_if_fini $h2
+}
+
+rp1_set_addr()
+{
+	ip address add dev $rp1 2001:db8:3::1/64
+
+	ip route add 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+	ip route add 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+}
+
+rp1_unset_addr()
+{
+	ip route del 2001:db8:5::0/64 nexthop via 2001:db8:3::2
+	ip route del 2001:db8:4::0/64 nexthop via 2001:db8:3::2
+
+	ip address del dev $rp1 2001:db8:3::1/64
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	rp1_set_addr
+	tc qdisc add dev $rp1 clsact
+
+	ip link add name vx10 type vxlan id 1000 local 2001:db8:3::1 \
+		dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+		tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000 local 2001:db8:3::1 \
+		dstport "$VXPORT" nolearning udp6zerocsumrx udp6zerocsumtx \
+		tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	tc qdisc add dev $swp1 clsact
+	bridge vlan add vid 10 dev $swp1
+	bridge vlan add vid 20 dev $swp1
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 10 dev $swp2
+	bridge vlan add vid 20 dev $swp2
+
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 2001:db8:5::1 self
+
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 2001:db8:5::1 self
+}
+
+switch_destroy()
+{
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	bridge vlan del vid 20 dev $swp2
+	bridge vlan del vid 10 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 20 dev $swp1
+	bridge vlan del vid 10 dev $swp1
+	tc qdisc del dev $swp1 clsact
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	tc qdisc del dev $rp1 clsact
+	rp1_unset_addr
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+vrp2_create()
+{
+	simple_if_init $rp2 2001:db8:3::2/64
+	__simple_if_init v1 v$rp2 2001:db8:4::2/64
+	__simple_if_init v3 v$rp2 2001:db8:5::2/64
+	tc qdisc add dev v1 clsact
+}
+
+vrp2_destroy()
+{
+	tc qdisc del dev v1 clsact
+	__simple_if_fini v3 2001:db8:5::2/64
+	__simple_if_fini v1 2001:db8:4::2/64
+	simple_if_fini $rp2 2001:db8:3::2/64
+}
+
+ns_init_common()
+{
+	local in_if=$1; shift
+	local in_addr=$1; shift
+	local other_in_addr=$1; shift
+	local nh_addr=$1; shift
+	local host_addr1_ipv4=$1; shift
+	local host_addr1_ipv6=$1; shift
+	local host_addr2_ipv4=$1; shift
+	local host_addr2_ipv6=$1; shift
+
+	ip link set dev $in_if up
+	ip address add dev $in_if $in_addr/64
+	tc qdisc add dev $in_if clsact
+
+	ip link add name br2 type bridge vlan_filtering 1 vlan_default_pvid 0
+	ip link set dev br2 up
+
+	ip link add name w1 type veth peer name w2
+
+	ip link set dev w1 master br2
+	ip link set dev w1 up
+
+	bridge vlan add vid 10 dev w1
+	bridge vlan add vid 20 dev w1
+
+	ip link add name vx10 type vxlan id 1000 local $in_addr \
+		dstport "$VXPORT" udp6zerocsumrx
+	ip link set dev vx10 up
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 2001:db8:3::1 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx10 master br2
+	tc qdisc add dev vx10 clsact
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 2000 local $in_addr \
+		dstport "$VXPORT" udp6zerocsumrx
+	ip link set dev vx20 up
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 2001:db8:3::1 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst $other_in_addr self
+
+	ip link set dev vx20 master br2
+	tc qdisc add dev vx20 clsact
+
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	simple_if_init w2
+        vlan_create w2 10 vw2 $host_addr1_ipv4/28 $host_addr1_ipv6/64
+        vlan_create w2 20 vw2 $host_addr2_ipv4/24 $host_addr2_ipv6/64
+
+	ip route add 2001:db8:3::0/64 nexthop via $nh_addr
+	ip route add $other_in_addr/128 nexthop via $nh_addr
+}
+export -f ns_init_common
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 \
+	      ns_init_common v2 2001:db8:4::1 2001:db8:5::1 2001:db8:4::2 \
+	      192.0.2.3 2001:db8:1::3 198.51.100.3 2001:db8:2::3
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+ns2_create()
+{
+	ip netns add ns2
+	ip link set dev v4 netns ns2
+	in_ns ns2 \
+	      ns_init_common v4 2001:db8:5::1 2001:db8:4::1 2001:db8:5::2 \
+	      192.0.2.4 2001:db8:1::4 198.51.100.4 2001:db8:2::4
+}
+
+ns2_destroy()
+{
+	ip netns exec ns2 ip link set dev v4 netns 1
+	ip netns del ns2
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	ip link add name v3 type veth peer name v4
+	vrp2_create
+	ns1_create
+	ns2_create
+
+	r1_mac=$(in_ns ns1 mac_get w2)
+	r2_mac=$(in_ns ns2 mac_get w2)
+	h2_mac=$(mac_get $h2)
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns2_destroy
+	ns1_destroy
+	vrp2_destroy
+	ip link del dev v3
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+# For the first round of tests, vx10 and vx20 were the first devices to get
+# attached to the bridge, and at that point the local IP is already
+# configured. Try the other scenario of attaching these devices to a bridge
+# that already has local ports members, and only then assign the local IP.
+reapply_config()
+{
+	log_info "Reapplying configuration"
+
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx20 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 2001:db8:5::1 self
+	bridge fdb del dev vx10 00:00:00:00:00:00 dst 2001:db8:4::1 self
+
+	ip link set dev vx20 nomaster
+	ip link set dev vx10 nomaster
+
+	rp1_unset_addr
+	sleep 5
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx10 00:00:00:00:00:00 dst 2001:db8:5::1 self
+
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 2001:db8:4::1 self
+	bridge fdb append dev vx20 00:00:00:00:00:00 dst 2001:db8:5::1 self
+
+	rp1_set_addr
+	sleep 5
+}
+
+__ping_ipv4()
+{
+	local vxlan_local_ip=$1; shift
+	local vxlan_remote_ip=$1; shift
+	local src_ip=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local info=$1; shift
+
+	RET=0
+
+	tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+		flower ip_proto udp src_ip $vxlan_local_ip \
+		dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+	# Match ICMP-reply packets after decapsulation, so source IP is
+	# destination IP of the ping and destination IP is source IP of the
+	# ping.
+	tc filter add dev $swp1 egress protocol 802.1q pref 1 handle 101 \
+		flower vlan_ethtype ipv4 src_ip $dst_ip dst_ip $src_ip \
+		$TC_FLAG action pass
+
+	# Send 100 packets and verify that at least 100 packets hit the rule,
+	# to overcome ARP noise.
+	PING_COUNT=100 PING_TIMEOUT=20 ping_do $dev $dst_ip
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $rp1 egress" 101 10 100
+	check_err $? "Encapsulated packets did not go through router"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 10 100
+	check_err $? "Decapsulated packets did not go through switch"
+
+	log_test "ping: $info"
+
+	tc filter del dev $swp1 egress
+	tc filter del dev $rp1 egress
+}
+
+ping_ipv4()
+{
+	RET=0
+
+	local local_sw_ip=2001:db8:3::1
+	local remote_ns1_ip=2001:db8:4::1
+	local remote_ns2_ip=2001:db8:5::1
+	local h1_10_ip=192.0.2.1
+	local h1_20_ip=198.51.100.1
+	local w2_10_ns1_ip=192.0.2.3
+	local w2_10_ns2_ip=192.0.2.4
+	local w2_20_ns1_ip=198.51.100.3
+	local w2_20_ns2_ip=198.51.100.4
+
+	ping_test $h1.10 192.0.2.2 ": local->local vid 10"
+	ping_test $h1.20 198.51.100.2 ": local->local vid 20"
+
+	__ping_ipv4 $local_sw_ip $remote_ns1_ip $h1_10_ip $w2_10_ns1_ip $h1.10 \
+		"local->remote 1 vid 10"
+	__ping_ipv4 $local_sw_ip $remote_ns2_ip $h1_10_ip $w2_10_ns2_ip $h1.10 \
+		"local->remote 2 vid 10"
+	__ping_ipv4 $local_sw_ip $remote_ns1_ip $h1_20_ip $w2_20_ns1_ip $h1.20 \
+		"local->remote 1 vid 20"
+	__ping_ipv4 $local_sw_ip $remote_ns2_ip $h1_20_ip $w2_20_ns2_ip $h1.20 \
+		"local->remote 2 vid 20"
+}
+
+__ping_ipv6()
+{
+	local vxlan_local_ip=$1; shift
+	local vxlan_remote_ip=$1; shift
+	local src_ip=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local info=$1; shift
+
+	RET=0
+
+	tc filter add dev $rp1 egress protocol ipv6 pref 1 handle 101 \
+		flower ip_proto udp src_ip $vxlan_local_ip \
+		dst_ip $vxlan_remote_ip dst_port $VXPORT $TC_FLAG action pass
+	# Match ICMP-reply packets after decapsulation, so source IP is
+	# destination IP of the ping and destination IP is source IP of the
+	# ping.
+	tc filter add dev $swp1 egress protocol 802.1q pref 1 handle 101 \
+		flower vlan_ethtype ipv6 src_ip $dst_ip dst_ip $src_ip \
+		$TC_FLAG action pass
+
+	# Send 100 packets and verify that at least 100 packets hit the rule,
+	# to overcome neighbor discovery noise.
+	PING_COUNT=100 PING_TIMEOUT=20 ping6_do $dev $dst_ip
+	check_err $? "Ping failed"
+
+	tc_check_at_least_x_packets "dev $rp1 egress" 101 100
+	check_err $? "Encapsulated packets did not go through router"
+
+	tc_check_at_least_x_packets "dev $swp1 egress" 101 100
+	check_err $? "Decapsulated packets did not go through switch"
+
+	log_test "ping6: $info"
+
+	tc filter del dev $swp1 egress
+	tc filter del dev $rp1 egress
+}
+
+ping_ipv6()
+{
+	RET=0
+
+	local local_sw_ip=2001:db8:3::1
+	local remote_ns1_ip=2001:db8:4::1
+	local remote_ns2_ip=2001:db8:5::1
+	local h1_10_ip=2001:db8:1::1
+	local h1_20_ip=2001:db8:2::1
+	local w2_10_ns1_ip=2001:db8:1::3
+	local w2_10_ns2_ip=2001:db8:1::4
+	local w2_20_ns1_ip=2001:db8:2::3
+	local w2_20_ns2_ip=2001:db8:2::4
+
+	ping6_test $h1.10 2001:db8:1::2 ": local->local vid 10"
+	ping6_test $h1.20 2001:db8:2::2 ": local->local vid 20"
+
+	__ping_ipv6 $local_sw_ip $remote_ns1_ip $h1_10_ip $w2_10_ns1_ip $h1.10 \
+		"local->remote 1 vid 10"
+	__ping_ipv6 $local_sw_ip $remote_ns2_ip $h1_10_ip $w2_10_ns2_ip $h1.10 \
+		"local->remote 2 vid 10"
+	__ping_ipv6 $local_sw_ip $remote_ns1_ip $h1_20_ip $w2_20_ns1_ip $h1.20 \
+		"local->remote 1 vid 20"
+	__ping_ipv6 $local_sw_ip $remote_ns2_ip $h1_20_ip $w2_20_ns2_ip $h1.20 \
+		"local->remote 2 vid 20"
+}
+
+maybe_in_ns()
+{
+	echo ${1:+in_ns} $1
+}
+
+__flood_counter_add_del()
+{
+	local add_del=$1; shift
+	local dst_ip=$1; shift
+	local dev=$1; shift
+	local ns=$1; shift
+
+	# Putting the ICMP capture both to HW and to SW will end up
+	# double-counting the packets that are trapped to slow path, such as for
+	# the unicast test. Adding either skip_hw or skip_sw fixes this problem,
+	# but with skip_hw, the flooded packets are not counted at all, because
+	# those are dropped due to MAC address mismatch; and skip_sw is a no-go
+	# for veth-based topologies.
+	#
+	# So try to install with skip_sw and fall back to skip_sw if that fails.
+
+	$(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+	   proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+	   icmpv6 skip_sw action pass 2>/dev/null || \
+	$(maybe_in_ns $ns) tc filter $add_del dev "$dev" ingress \
+	   proto ipv6 pref 100 flower dst_ip $dst_ip ip_proto \
+	   icmpv6 skip_hw action pass
+}
+
+flood_counter_install()
+{
+	__flood_counter_add_del add "$@"
+}
+
+flood_counter_uninstall()
+{
+	__flood_counter_add_del del "$@"
+}
+
+flood_fetch_stat()
+{
+	local dev=$1; shift
+	local ns=$1; shift
+
+	$(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
+}
+
+flood_fetch_stats()
+{
+	local counters=("${@}")
+	local counter
+
+	for counter in "${counters[@]}"; do
+		flood_fetch_stat $counter
+	done
+}
+
+vxlan_flood_test()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local vid=$1; shift
+	local -a expects=("${@}")
+
+	local -a counters=($h2 "vx10 ns1" "vx20 ns1" "vx10 ns2" "vx20 ns2")
+	local counter
+	local key
+
+	# Packets reach the local host tagged whereas they reach the VxLAN
+	# devices untagged. In order to be able to use the same filter for
+	# all counters, make sure the packets also reach the local host
+	# untagged
+	bridge vlan add vid $vid dev $swp2 untagged
+	for counter in "${counters[@]}"; do
+		flood_counter_install $dst $counter
+	done
+
+	local -a t0s=($(flood_fetch_stats "${counters[@]}"))
+	$MZ -6 $h1 -Q $vid -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp6 type=128 -q
+	sleep 1
+	local -a t1s=($(flood_fetch_stats "${counters[@]}"))
+
+	for key in ${!t0s[@]}; do
+		local delta=$((t1s[$key] - t0s[$key]))
+		local expect=${expects[$key]}
+
+		((expect == delta))
+		check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
+	done
+
+	for counter in "${counters[@]}"; do
+		flood_counter_uninstall $dst $counter
+	done
+	bridge vlan add vid $vid dev $swp2
+}
+
+__test_flood()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local vid=$1; shift
+	local what=$1; shift
+	local -a expects=("${@}")
+
+	RET=0
+
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_flood()
+{
+	__test_flood de:ad:be:ef:13:37 2001:db8:1::100 10 "flood vlan 10" \
+		10 10 0 10 0
+	__test_flood ca:fe:be:ef:13:37 2001:db8:2::100 20 "flood vlan 20" \
+		10 0 10 0 10
+}
+
+vxlan_fdb_add_del()
+{
+	local add_del=$1; shift
+	local vid=$1; shift
+	local mac=$1; shift
+	local dev=$1; shift
+	local dst=$1; shift
+
+	bridge fdb $add_del dev $dev $mac self static permanent \
+		${dst:+dst} $dst 2>/dev/null
+	bridge fdb $add_del dev $dev $mac master static vlan $vid 2>/dev/null
+}
+
+__test_unicast()
+{
+	local mac=$1; shift
+	local dst=$1; shift
+	local hit_idx=$1; shift
+	local vid=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	local -a expects=(0 0 0 0 0)
+	expects[$hit_idx]=10
+
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: $what"
+}
+
+test_unicast()
+{
+	local -a targets=("$h2_mac $h2"
+			  "$r1_mac vx10 2001:db8:4::1"
+			  "$r2_mac vx10 2001:db8:5::1")
+	local target
+
+	log_info "unicast vlan 10"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add 10 $target
+	done
+
+	__test_unicast $h2_mac 2001:db8:1::2 0 10 "local MAC unicast"
+	__test_unicast $r1_mac 2001:db8:1::3 1 10 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 2001:db8:1::4 3 10 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del 10 $target
+	done
+
+	log_info "unicast vlan 20"
+
+	targets=("$h2_mac $h2" "$r1_mac vx20 2001:db8:4::1" \
+		 "$r2_mac vx20 2001:db8:5::1")
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del add 20 $target
+	done
+
+	__test_unicast $h2_mac 2001:db8:2::2 0 20 "local MAC unicast"
+	__test_unicast $r1_mac 2001:db8:2::3 2 20 "remote MAC 1 unicast"
+	__test_unicast $r2_mac 2001:db8:2::4 4 20 "remote MAC 2 unicast"
+
+	for target in "${targets[@]}"; do
+		vxlan_fdb_add_del del 20 $target
+	done
+}
+
+test_pvid()
+{
+	local -a expects=(0 0 0 0 0)
+	local mac=de:ad:be:ef:13:37
+	local dst=2001:db8:1::100
+	local vid=10
+
+	# Check that flooding works
+	RET=0
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood before pvid off"
+
+	# Toggle PVID off and test that flood to remote hosts does not work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10
+
+	expects[0]=10; expects[1]=0; expects[3]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after pvid off"
+
+	# Toggle PVID on and test that flood to remote hosts does work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after pvid on"
+
+	# Add a new VLAN and test that it does not affect flooding
+	RET=0
+
+	bridge vlan add vid 30 dev vx10
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	bridge vlan del vid 30 dev vx10
+
+	log_test "VXLAN: flood after vlan add"
+
+	# Remove currently mapped VLAN and test that flood to remote hosts does
+	# not work
+	RET=0
+
+	bridge vlan del vid 10 dev vx10
+
+	expects[0]=10; expects[1]=0; expects[3]=0
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after vlan delete"
+
+	# Re-add the VLAN and test that flood to remote hosts does work
+	RET=0
+
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	expects[0]=10; expects[1]=10; expects[3]=10
+	vxlan_flood_test $mac $dst $vid "${expects[@]}"
+
+	log_test "VXLAN: flood after vlan re-add"
+}
+
+test_all()
+{
+	log_info "Running tests with UDP port $VXPORT"
+	tests_run
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+test_all
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_mc_ul.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_mc_ul.sh
new file mode 100755
index 000000000000..6a570d256e07
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_mc_ul.sh
@@ -0,0 +1,766 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +-----------------------------------------+
+# | + $h1.10             + $h1.20           |
+# | | 192.0.2.1/28       | 2001:db8:1::1/64 |
+# | \________   ________/                   |
+# |          \ /                            |
+# |           + $h1                H1 (vrf) |
+# +-----------|-----------------------------+
+#             |
+# +-----------|----------------------------------------------------------------+
+# | +---------|--------------------------------------+       SWITCH (main vrf) |
+# | |         + $swp1                   BR1 (802.1q) |                         |
+# | |            vid 10 20                           |                         |
+# | |                                                |                         |
+# | |  + vx10 (vxlan)         + vx20 (vxlan)         |      + lo10 (dummy)     |
+# | |    local 192.0.2.100      local 2001:db8:4::1  |        192.0.2.100/28   |
+# | |    group 233.252.0.1      group ff0e::1:2:3    |        2001:db8:4::1/64 |
+# | |    id 1000                id 2000              |                         |
+# | |    vid 10 pvid untagged   vid 20 pvid untagged |                         |
+# | +------------------------------------------------+                         |
+# |                                                                            |
+# |   + $swp2                                                        $swp3 +   |
+# |   | 192.0.2.33/28                                        192.0.2.65/28 |   |
+# |   | 2001:db8:2::1/64                                  2001:db8:3::1/64 |   |
+# |   |                                                                    |   |
+# +---|--------------------------------------------------------------------|---+
+#     |                                                                    |
+# +---|--------------------------------+  +--------------------------------|---+
+# |   |                      H2 (vrf)  |  | H3 (vrf)                       |   |
+# | +-|----------------------------+   |  |  +-----------------------------|-+ |
+# | | + $h2           BR2 (802.1d) |   |  |  | BR3 (802.1d)            $h3 + | |
+# | |                              |   |  |  |                               | |
+# | | + v1$h2 (veth)               |   |  |  |                v1$h3 (veth) + | |
+# | +-|----------------------------+   |  |  +-----------------------------|-+ |
+# |   |                                |  |                                |   |
+# +---|--------------------------------+  +--------------------------------|---+
+#     |                                                                    |
+# +---|--------------------------------+  +--------------------------------|---+
+# |   + v2$h2 (veth)       NS2 (netns) |  | NS3 (netns)       v2$h3 (veth) +   |
+# |     192.0.2.34/28                  |  |                  192.0.2.66/28     |
+# |     2001:db8:2::2/64               |  |               2001:db8:3::2/64     |
+# |                                    |  |                                    |
+# | +--------------------------------+ |  | +--------------------------------+ |
+# | |                  BR1 (802.1q)  | |  | |                   BR1 (802.1q) | |
+# | |  + vx10 (vxlan)                | |  | |  + vx10 (vxlan)                | |
+# | |    local 192.0.2.34            | |  | |    local 192.0.2.50            | |
+# | |    group 233.252.0.1 dev v2$h2 | |  | |    group 233.252.0.1 dev v2$h3 | |
+# | |    id 1000 dstport $VXPORT     | |  | |    id 1000 dstport $VXPORT     | |
+# | |    vid 10 pvid untagged        | |  | |    vid 10 pvid untagged        | |
+# | |                                | |  | |                                | |
+# | |  + vx20 (vxlan)                | |  | |  + vx20 (vxlan)                | |
+# | |    local 2001:db8:2::2         | |  | |    local 2001:db8:3::2         | |
+# | |    group ff0e::1:2:3 dev v2$h2 | |  | |    group ff0e::1:2:3 dev v2$h3 | |
+# | |    id 2000 dstport $VXPORT     | |  | |    id 2000 dstport $VXPORT     | |
+# | |    vid 20 pvid untagged        | |  | |    vid 20 pvid untagged        | |
+# | |                                | |  | |                                | |
+# | |  + w1 (veth)                   | |  | |  + w1 (veth)                   | |
+# | |  | vid 10 20                   | |  | |  | vid 10 20                   | |
+# | +--|-----------------------------+ |  | +--|-----------------------------+ |
+# |    |                               |  |    |                               |
+# | +--|-----------------------------+ |  | +--|-----------------------------+ |
+# | |  + w2 (veth)        VW2 (vrf)  | |  | |  + w2 (veth)        VW2 (vrf)  | |
+# | |  |\                            | |  | |  |\                            | |
+# | |  | + w2.10                     | |  | |  | + w2.10                     | |
+# | |  |   192.0.2.3/28              | |  | |  |   192.0.2.4/28              | |
+# | |  |                             | |  | |  |                             | |
+# | |  + w2.20                       | |  | |  + w2.20                       | |
+# | |    2001:db8:1::3/64            | |  | |    2001:db8:1::4/64            | |
+# | +--------------------------------+ |  | +--------------------------------+ |
+# +------------------------------------+  +------------------------------------+
+#
+#shellcheck disable=SC2317 # SC doesn't see our uses of functions.
+
+: "${VXPORT:=4789}"
+export VXPORT
+
+: "${GROUP4:=233.252.0.1}"
+export GROUP4
+
+: "${GROUP6:=ff0e::1:2:3}"
+export GROUP6
+
+: "${IPMR:=lo10}"
+
+ALL_TESTS="
+	ipv4_nomcroute
+	ipv4_mcroute
+	ipv4_mcroute_changelink
+	ipv4_mcroute_starg
+	ipv4_mcroute_noroute
+	ipv4_mcroute_fdb
+	ipv4_mcroute_fdb_oif0
+	ipv4_mcroute_fdb_oif0_sep
+
+	ipv6_nomcroute
+	ipv6_mcroute
+	ipv6_mcroute_changelink
+	ipv6_mcroute_starg
+	ipv6_mcroute_noroute
+	ipv6_mcroute_fdb
+	ipv6_mcroute_fdb_oif0
+
+	ipv4_nomcroute_rx
+	ipv4_mcroute_rx
+	ipv4_mcroute_starg_rx
+	ipv4_mcroute_fdb_oif0_sep_rx
+	ipv4_mcroute_fdb_sep_rx
+
+	ipv6_nomcroute_rx
+	ipv6_mcroute_rx
+	ipv6_mcroute_starg_rx
+	ipv6_mcroute_fdb_sep_rx
+"
+
+NUM_NETIFS=6
+source lib.sh
+
+h1_create()
+{
+	adf_simple_if_init "$h1"
+
+	adf_ip_link_add "$h1.10" master "v$h1" link "$h1" type vlan id 10
+	adf_ip_link_set_up "$h1.10"
+	adf_ip_addr_add "$h1.10" 192.0.2.1/28
+
+	adf_ip_link_add "$h1.20" master "v$h1" link "$h1" type vlan id 20
+	adf_ip_link_set_up "$h1.20"
+	adf_ip_addr_add "$h1.20" 2001:db8:1::1/64
+}
+
+install_capture()
+{
+	local dev=$1; shift
+
+	tc qdisc add dev "$dev" clsact
+	defer tc qdisc del dev "$dev" clsact
+
+	tc filter add dev "$dev" ingress proto ip pref 104 \
+	   flower skip_hw ip_proto udp dst_port "$VXPORT" \
+	   action pass
+	defer tc filter del dev "$dev" ingress proto ip pref 104
+
+	tc filter add dev "$dev" ingress proto ipv6 pref 106 \
+	   flower skip_hw ip_proto udp dst_port "$VXPORT" \
+	   action pass
+	defer tc filter del dev "$dev" ingress proto ipv6 pref 106
+}
+
+h2_create()
+{
+	# $h2
+	adf_ip_link_set_up "$h2"
+
+	# H2
+	vrf_create "v$h2"
+	defer vrf_destroy "v$h2"
+
+	adf_ip_link_set_up "v$h2"
+
+	# br2
+	adf_ip_link_add br2 type bridge vlan_filtering 0 mcast_snooping 0
+	adf_ip_link_set_master br2 "v$h2"
+	adf_ip_link_set_up br2
+
+	# $h2
+	adf_ip_link_set_master "$h2" br2
+	install_capture "$h2"
+
+	# v1$h2
+	adf_ip_link_set_up "v1$h2"
+	adf_ip_link_set_master "v1$h2" br2
+}
+
+h3_create()
+{
+	# $h3
+	adf_ip_link_set_up "$h3"
+
+	# H3
+	vrf_create "v$h3"
+	defer vrf_destroy "v$h3"
+
+	adf_ip_link_set_up "v$h3"
+
+	# br3
+	adf_ip_link_add br3 type bridge vlan_filtering 0 mcast_snooping 0
+	adf_ip_link_set_master br3 "v$h3"
+	adf_ip_link_set_up br3
+
+	# $h3
+	adf_ip_link_set_master "$h3" br3
+	install_capture "$h3"
+
+	# v1$h3
+	adf_ip_link_set_up "v1$h3"
+	adf_ip_link_set_master "v1$h3" br3
+}
+
+switch_create()
+{
+	local swp1_mac
+
+	# br1
+	swp1_mac=$(mac_get "$swp1")
+	adf_ip_link_add br1 type bridge vlan_filtering 1 \
+			    vlan_default_pvid 0 mcast_snooping 0
+	adf_ip_link_set_addr br1 "$swp1_mac"
+	adf_ip_link_set_up br1
+
+	# A dummy to force the IPv6 OIF=0 test to install a suitable MC route on
+	# $IPMR to be deterministic. Also used for the IPv6 RX!=TX ping test.
+	adf_ip_link_add "X$IPMR" up type dummy
+
+	# IPMR
+	adf_ip_link_add "$IPMR" up type dummy
+	adf_ip_addr_add "$IPMR" 192.0.2.100/28
+	adf_ip_addr_add "$IPMR" 2001:db8:4::1/64
+
+	# $swp1
+	adf_ip_link_set_up "$swp1"
+	adf_ip_link_set_master "$swp1" br1
+	adf_bridge_vlan_add vid 10 dev "$swp1"
+	adf_bridge_vlan_add vid 20 dev "$swp1"
+
+	# $swp2
+	adf_ip_link_set_up "$swp2"
+	adf_ip_addr_add "$swp2" 192.0.2.33/28
+	adf_ip_addr_add "$swp2" 2001:db8:2::1/64
+
+	# $swp3
+	adf_ip_link_set_up "$swp3"
+	adf_ip_addr_add "$swp3" 192.0.2.65/28
+	adf_ip_addr_add "$swp3" 2001:db8:3::1/64
+}
+
+vx_create()
+{
+	local name=$1; shift
+	local vid=$1; shift
+
+	adf_ip_link_add "$name" up type vxlan dstport "$VXPORT" \
+		nolearning noudpcsum tos inherit ttl 16 \
+		"$@"
+	adf_ip_link_set_master "$name" br1
+	adf_bridge_vlan_add vid "$vid" dev "$name" pvid untagged
+}
+export -f vx_create
+
+vx_wait()
+{
+	# Wait for all the ARP, IGMP etc. noise to settle down so that the
+	# tunnel is clear for measurements.
+	sleep 10
+}
+
+vx10_create()
+{
+	vx_create vx10 10 id 1000 "$@"
+}
+export -f vx10_create
+
+vx20_create()
+{
+	vx_create vx20 20 id 2000 "$@"
+}
+export -f vx20_create
+
+vx10_create_wait()
+{
+	vx10_create "$@"
+	vx_wait
+}
+
+vx20_create_wait()
+{
+	vx20_create "$@"
+	vx_wait
+}
+
+ns_init_common()
+{
+	local ns=$1; shift
+	local if_in=$1; shift
+	local ipv4_in=$1; shift
+	local ipv6_in=$1; shift
+	local ipv4_host=$1; shift
+	local ipv6_host=$1; shift
+
+	# v2$h2 / v2$h3
+	adf_ip_link_set_up "$if_in"
+	adf_ip_addr_add "$if_in" "$ipv4_in"
+	adf_ip_addr_add "$if_in" "$ipv6_in"
+
+	# br1
+	adf_ip_link_add br1 type bridge vlan_filtering 1 \
+		    vlan_default_pvid 0 mcast_snooping 0
+	adf_ip_link_set_up br1
+
+	# vx10, vx20
+	vx10_create local "${ipv4_in%/*}" group "$GROUP4" dev "$if_in"
+	vx20_create local "${ipv6_in%/*}" group "$GROUP6" dev "$if_in"
+
+	# w1
+	adf_ip_link_add w1 type veth peer name w2
+	adf_ip_link_set_master w1 br1
+	adf_ip_link_set_up w1
+	adf_bridge_vlan_add vid 10 dev w1
+	adf_bridge_vlan_add vid 20 dev w1
+
+	# w2
+	adf_simple_if_init w2
+
+	# w2.10
+	adf_ip_link_add w2.10 master vw2 link w2 type vlan id 10
+	adf_ip_link_set_up w2.10
+	adf_ip_addr_add w2.10 "$ipv4_host"
+
+	# w2.20
+	adf_ip_link_add w2.20 master vw2 link w2 type vlan id 20
+	adf_ip_link_set_up w2.20
+	adf_ip_addr_add w2.20 "$ipv6_host"
+}
+export -f ns_init_common
+
+ns2_create()
+{
+	# NS2
+	ip netns add ns2
+	defer ip netns del ns2
+
+	# v2$h2
+	ip link set dev "v2$h2" netns ns2
+	defer ip -n ns2 link set dev "v2$h2" netns 1
+
+	in_ns ns2 \
+	      ns_init_common ns2 "v2$h2" \
+			     192.0.2.34/28 2001:db8:2::2/64 \
+			     192.0.2.3/28  2001:db8:1::3/64
+}
+
+ns3_create()
+{
+	# NS3
+	ip netns add ns3
+	defer ip netns del ns3
+
+	# v2$h3
+	ip link set dev "v2$h3" netns ns3
+	defer ip -n ns3 link set dev "v2$h3" netns 1
+
+	ip -n ns3 link set dev "v2$h3" up
+
+	in_ns ns3 \
+	      ns_init_common ns3 "v2$h3" \
+			     192.0.2.66/28 2001:db8:3::2/64 \
+			     192.0.2.4/28  2001:db8:1::4/64
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	swp3=${NETIFS[p5]}
+	h3=${NETIFS[p6]}
+
+	adf_vrf_prepare
+	adf_forwarding_enable
+
+	adf_ip_link_add "v1$h2" type veth peer name "v2$h2"
+	adf_ip_link_add "v1$h3" type veth peer name "v2$h3"
+
+	h1_create
+	h2_create
+	h3_create
+	switch_create
+	ns2_create
+	ns3_create
+}
+
+adf_install_broken_sg()
+{
+	adf_mcd_start "$IPMR" || exit "$EXIT_STATUS"
+
+	mc_cli add "$swp2" 192.0.2.100 "$GROUP4" "$swp1" "$swp3"
+	defer mc_cli remove "$swp2" 192.0.2.100 "$GROUP4" "$swp1" "$swp3"
+
+	mc_cli add "$swp2" 2001:db8:4::1 "$GROUP6" "$swp1" "$swp3"
+	defer mc_cli remove "$swp2" 2001:db8:4::1 "$GROUP6" "$swp1" "$swp3"
+}
+
+adf_install_rx()
+{
+	mc_cli add "$swp2" 0.0.0.0 "$GROUP4" "$IPMR"
+	defer mc_cli remove "$swp2" 0.0.0.0 "$GROUP4" lo10
+
+	mc_cli add "$swp3" 0.0.0.0 "$GROUP4" "$IPMR"
+	defer mc_cli remove "$swp3" 0.0.0.0 "$GROUP4" lo10
+
+	mc_cli add "$swp2" :: "$GROUP6" "$IPMR"
+	defer mc_cli remove "$swp2" :: "$GROUP6" lo10
+
+	mc_cli add "$swp3" :: "$GROUP6" "$IPMR"
+	defer mc_cli remove "$swp3" :: "$GROUP6" lo10
+}
+
+adf_install_sg()
+{
+	adf_mcd_start "$IPMR" || exit "$EXIT_STATUS"
+
+	mc_cli add "$IPMR" 192.0.2.100 "$GROUP4" "$swp2" "$swp3"
+	defer mc_cli remove "$IPMR" 192.0.2.33 "$GROUP4" "$swp2" "$swp3"
+
+	mc_cli add "$IPMR" 2001:db8:4::1 "$GROUP6" "$swp2" "$swp3"
+	defer mc_cli remove "$IPMR" 2001:db8:4::1 "$GROUP6" "$swp2" "$swp3"
+
+	adf_install_rx
+}
+
+adf_install_sg_sep()
+{
+	adf_mcd_start lo || exit "$EXIT_STATUS"
+
+	mc_cli add lo 192.0.2.120 "$GROUP4" "$swp2" "$swp3"
+	defer mc_cli remove lo 192.0.2.120 "$GROUP4" "$swp2" "$swp3"
+
+	mc_cli add lo 2001:db8:5::1 "$GROUP6" "$swp2" "$swp3"
+	defer mc_cli remove lo 2001:db8:5::1 "$GROUP6" "$swp2" "$swp3"
+}
+
+adf_install_sg_sep_rx()
+{
+	local lo=$1; shift
+
+	adf_mcd_start "$IPMR" "$lo" || exit "$EXIT_STATUS"
+
+	mc_cli add "$lo" 192.0.2.120 "$GROUP4" "$swp2" "$swp3"
+	defer mc_cli remove "$lo" 192.0.2.120 "$GROUP4" "$swp2" "$swp3"
+
+	mc_cli add "$lo" 2001:db8:5::1 "$GROUP6" "$swp2" "$swp3"
+	defer mc_cli remove "$lo" 2001:db8:5::1 "$GROUP6" "$swp2" "$swp3"
+
+	adf_install_rx
+}
+
+adf_install_starg()
+{
+	adf_mcd_start "$IPMR" || exit "$EXIT_STATUS"
+
+	mc_cli add "$IPMR" 0.0.0.0 "$GROUP4" "$swp2" "$swp3"
+	defer mc_cli remove "$IPMR" 0.0.0.0 "$GROUP4" "$swp2" "$swp3"
+
+	mc_cli add "$IPMR" :: "$GROUP6" "$swp2" "$swp3"
+	defer mc_cli remove "$IPMR" :: "$GROUP6" "$swp2" "$swp3"
+
+	adf_install_rx
+}
+
+do_packets_v4()
+{
+	local mac
+
+	mac=$(mac_get "$h2")
+	"$MZ" "$h1" -Q 10 -c 10 -d 100msec -p 64 -a own -b "$mac" \
+	    -A 192.0.2.1 -B 192.0.2.2 -t udp sp=1234,dp=2345 -q
+}
+
+do_packets_v6()
+{
+	local mac
+
+	mac=$(mac_get "$h2")
+	"$MZ" -6 "$h1" -Q 20 -c 10 -d 100msec -p 64 -a own -b "$mac" \
+	    -A 2001:db8:1::1 -B 2001:db8:1::2 -t udp sp=1234,dp=2345 -q
+}
+
+do_test()
+{
+	local ipv=$1; shift
+	local expect_h2=$1; shift
+	local expect_h3=$1; shift
+	local what=$1; shift
+
+	local pref=$((100 + ipv))
+	local t0_h2
+	local t0_h3
+	local t1_h2
+	local t1_h3
+	local d_h2
+	local d_h3
+
+	RET=0
+
+	t0_h2=$(tc_rule_stats_get "$h2" "$pref" ingress)
+	t0_h3=$(tc_rule_stats_get "$h3" "$pref" ingress)
+
+	"do_packets_v$ipv"
+	sleep 1
+
+	t1_h2=$(tc_rule_stats_get "$h2" "$pref" ingress)
+	t1_h3=$(tc_rule_stats_get "$h3" "$pref" ingress)
+
+	d_h2=$((t1_h2 - t0_h2))
+	d_h3=$((t1_h3 - t0_h3))
+
+	((d_h2 == expect_h2))
+	check_err $? "Expected $expect_h2 packets on H2, got $d_h2"
+
+	((d_h3 == expect_h3))
+	check_err $? "Expected $expect_h3 packets on H3, got $d_h3"
+
+	log_test "VXLAN MC flood $what"
+}
+
+ipv4_do_test_rx()
+{
+	local h3_should_fail=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ping_do "$h1.10" 192.0.2.3
+	check_err $? "H2 should respond"
+
+	ping_do "$h1.10" 192.0.2.4
+	check_err_fail "$h3_should_fail" $? "H3 responds"
+
+	log_test "VXLAN MC flood $what"
+}
+
+ipv6_do_test_rx()
+{
+	local h3_should_fail=$1; shift
+	local what=$1; shift
+
+	RET=0
+
+	ping6_do "$h1.20" 2001:db8:1::3
+	check_err $? "H2 should respond"
+
+	ping6_do "$h1.20" 2001:db8:1::4
+	check_err_fail "$h3_should_fail" $? "H3 responds"
+
+	log_test "VXLAN MC flood $what"
+}
+
+ipv4_nomcroute()
+{
+	# Install a misleading (S,G) rule to attempt to trick the system into
+	# pushing the packets elsewhere.
+	adf_install_broken_sg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$swp2"
+	do_test 4 10 0 "IPv4 nomcroute"
+}
+
+ipv6_nomcroute()
+{
+	# Like for IPv4, install a misleading (S,G).
+	adf_install_broken_sg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$swp2"
+	do_test 6 10 0 "IPv6 nomcroute"
+}
+
+ipv4_nomcroute_rx()
+{
+	vx10_create local 192.0.2.100 group "$GROUP4" dev "$swp2"
+	ipv4_do_test_rx 1 "IPv4 nomcroute ping"
+}
+
+ipv6_nomcroute_rx()
+{
+	vx20_create local 2001:db8:4::1 group "$GROUP6" dev "$swp2"
+	ipv6_do_test_rx 1 "IPv6 nomcroute ping"
+}
+
+ipv4_mcroute()
+{
+	adf_install_sg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	do_test 4 10 10 "IPv4 mcroute"
+}
+
+ipv6_mcroute()
+{
+	adf_install_sg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	do_test 6 10 10 "IPv6 mcroute"
+}
+
+ipv4_mcroute_rx()
+{
+	adf_install_sg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	ipv4_do_test_rx 0 "IPv4 mcroute ping"
+}
+
+ipv6_mcroute_rx()
+{
+	adf_install_sg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	ipv6_do_test_rx 0 "IPv6 mcroute ping"
+}
+
+ipv4_mcroute_changelink()
+{
+	adf_install_sg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR"
+	ip link set dev vx10 type vxlan mcroute
+	sleep 1
+	do_test 4 10 10 "IPv4 mcroute changelink"
+}
+
+ipv6_mcroute_changelink()
+{
+	adf_install_sg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	ip link set dev vx20 type vxlan mcroute
+	sleep 1
+	do_test 6 10 10 "IPv6 mcroute changelink"
+}
+
+ipv4_mcroute_starg()
+{
+	adf_install_starg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	do_test 4 10 10 "IPv4 mcroute (*,G)"
+}
+
+ipv6_mcroute_starg()
+{
+	adf_install_starg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	do_test 6 10 10 "IPv6 mcroute (*,G)"
+}
+
+ipv4_mcroute_starg_rx()
+{
+	adf_install_starg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	ipv4_do_test_rx 0 "IPv4 mcroute (*,G) ping"
+}
+
+ipv6_mcroute_starg_rx()
+{
+	adf_install_starg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	ipv6_do_test_rx 0 "IPv6 mcroute (*,G) ping"
+}
+
+ipv4_mcroute_noroute()
+{
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	do_test 4 0 0 "IPv4 mcroute, no route"
+}
+
+ipv6_mcroute_noroute()
+{
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	do_test 6 0 0 "IPv6 mcroute, no route"
+}
+
+ipv4_mcroute_fdb()
+{
+	adf_install_sg
+	vx10_create_wait local 192.0.2.100 dev "$IPMR" mcroute
+	bridge fdb add dev vx10 \
+		00:00:00:00:00:00 self static dst "$GROUP4" via "$IPMR"
+	do_test 4 10 10 "IPv4 mcroute FDB"
+}
+
+ipv6_mcroute_fdb()
+{
+	adf_install_sg
+	vx20_create_wait local 2001:db8:4::1 dev "$IPMR" mcroute
+	bridge -6 fdb add dev vx20 \
+		00:00:00:00:00:00 self static dst "$GROUP6" via "$IPMR"
+	do_test 6 10 10 "IPv6 mcroute FDB"
+}
+
+# Use FDB to configure VXLAN in a way where oif=0 for purposes of FIB lookup.
+ipv4_mcroute_fdb_oif0()
+{
+	adf_install_sg
+	vx10_create_wait local 192.0.2.100 group "$GROUP4" dev "$IPMR" mcroute
+	bridge fdb del dev vx10 00:00:00:00:00:00
+	bridge fdb add dev vx10 00:00:00:00:00:00 self static dst "$GROUP4"
+	do_test 4 10 10 "IPv4 mcroute oif=0"
+}
+
+ipv6_mcroute_fdb_oif0()
+{
+	# The IPv6 tunnel lookup does not fall back to selection by source
+	# address. Instead it just does a FIB match, and that would find one of
+	# the several ff00::/8 multicast routes -- each device has one. In order
+	# to reliably force the $IPMR device, add a /128 route for the
+	# destination group address.
+	ip -6 route add table local multicast "$GROUP6/128" dev "$IPMR"
+	defer ip -6 route del table local multicast "$GROUP6/128" dev "$IPMR"
+
+	adf_install_sg
+	vx20_create_wait local 2001:db8:4::1 group "$GROUP6" dev "$IPMR" mcroute
+	bridge -6 fdb del dev vx20 00:00:00:00:00:00
+	bridge -6 fdb add dev vx20 00:00:00:00:00:00 self static dst "$GROUP6"
+	do_test 6 10 10 "IPv6 mcroute oif=0"
+}
+
+# In oif=0 test as above, have FIB lookup resolve to loopback instead of IPMR.
+# This doesn't work with IPv6 -- a MC route on lo would be marked as RTF_REJECT.
+ipv4_mcroute_fdb_oif0_sep()
+{
+	adf_install_sg_sep
+
+	adf_ip_addr_add lo 192.0.2.120/28
+	vx10_create_wait local 192.0.2.120 group "$GROUP4" dev "$IPMR" mcroute
+	bridge fdb del dev vx10 00:00:00:00:00:00
+	bridge fdb add dev vx10 00:00:00:00:00:00 self static dst "$GROUP4"
+	do_test 4 10 10 "IPv4 mcroute TX!=RX oif=0"
+}
+
+ipv4_mcroute_fdb_oif0_sep_rx()
+{
+	adf_install_sg_sep_rx lo
+
+	adf_ip_addr_add lo 192.0.2.120/28
+	vx10_create_wait local 192.0.2.120 group "$GROUP4" dev "$IPMR" mcroute
+	bridge fdb del dev vx10 00:00:00:00:00:00
+	bridge fdb add dev vx10 00:00:00:00:00:00 self static dst "$GROUP4"
+	ipv4_do_test_rx 0 "IPv4 mcroute TX!=RX oif=0 ping"
+}
+
+ipv4_mcroute_fdb_sep_rx()
+{
+	adf_install_sg_sep_rx lo
+
+	adf_ip_addr_add lo 192.0.2.120/28
+	vx10_create_wait local 192.0.2.120 group "$GROUP4" dev "$IPMR" mcroute
+	bridge fdb del dev vx10 00:00:00:00:00:00
+	bridge fdb add \
+	       dev vx10 00:00:00:00:00:00 self static dst "$GROUP4" via lo
+	ipv4_do_test_rx 0 "IPv4 mcroute TX!=RX ping"
+}
+
+ipv6_mcroute_fdb_sep_rx()
+{
+	adf_install_sg_sep_rx "X$IPMR"
+
+	adf_ip_addr_add "X$IPMR" 2001:db8:5::1/64
+	vx20_create_wait local 2001:db8:5::1 group "$GROUP6" dev "$IPMR" mcroute
+	bridge -6 fdb del dev vx20 00:00:00:00:00:00
+	bridge -6 fdb add dev vx20 00:00:00:00:00:00 \
+			  self static dst "$GROUP6" via "X$IPMR"
+	ipv6_do_test_rx 0 "IPv6 mcroute TX!=RX ping"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit "$EXIT_STATUS"
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh
new file mode 100755
index 000000000000..b1b2d1a3164f
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+	ping_ipv4
+"
+source vxlan_bridge_1q.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472_ipv6.sh
new file mode 100755
index 000000000000..344f43ccb755
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_bridge_1q_port_8472_ipv6.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# A wrapper to run VXLAN tests with an unusual port number.
+
+VXPORT=8472
+ALL_TESTS="
+	ping_ipv4
+	ping_ipv6
+"
+source vxlan_bridge_1q_ipv6.sh
diff --git a/tools/testing/selftests/net/forwarding/vxlan_reserved.sh b/tools/testing/selftests/net/forwarding/vxlan_reserved.sh
new file mode 100755
index 000000000000..709845123727
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_reserved.sh
@@ -0,0 +1,347 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +--------------------+
+# | H1 (vrf)           |
+# |    + $h1           |
+# |    | 192.0.2.1/28  |
+# +----|---------------+
+#      |
+# +----|--------------------------------+
+# | SW |                                |
+# | +--|------------------------------+ |
+# | |  + $swp1           BR1 (802.1d) | |
+# | |                                 | |
+# | |  + vx1 (vxlan)                  | |
+# | |    local 192.0.2.17             | |
+# | |    id 1000 dstport $VXPORT      | |
+# | +---------------------------------+ |
+# |                                     |
+# |  192.0.2.32/28 via 192.0.2.18       |
+# |                                     |
+# |  + $rp1                             |
+# |  | 192.0.2.17/28                    |
+# +--|----------------------------------+
+#    |
+# +--|----------------------------------+
+# |  |                                  |
+# |  + $rp2                             |
+# |    192.0.2.18/28                    |
+# |                                     |
+# | VRP2 (vrf)                          |
+# +-------------------------------------+
+
+: ${VXPORT:=4789}
+: ${ALL_TESTS:="
+	default_test
+	plain_test
+	reserved_0_test
+	reserved_10_test
+	reserved_31_test
+	reserved_56_test
+	reserved_63_test
+    "}
+
+NUM_NETIFS=4
+source lib.sh
+
+h1_create()
+{
+	adf_simple_if_init $h1 192.0.2.1/28
+
+	tc qdisc add dev $h1 clsact
+	defer tc qdisc del dev $h1 clsact
+
+	tc filter add dev $h1 ingress pref 77 \
+	   prot ip flower skip_hw ip_proto icmp action drop
+	defer tc filter del dev $h1 ingress pref 77
+}
+
+switch_create()
+{
+	adf_ip_link_add br1 type bridge vlan_filtering 0 mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	adf_ip_link_set_addr br1 $(mac_get $swp1)
+	adf_ip_link_set_up br1
+
+	adf_ip_link_set_up $rp1
+	adf_ip_addr_add $rp1 192.0.2.17/28
+	adf_ip_route_add 192.0.2.32/28 nexthop via 192.0.2.18
+
+	adf_ip_link_set_master $swp1 br1
+	adf_ip_link_set_up $swp1
+}
+
+vrp2_create()
+{
+	adf_simple_if_init $rp2 192.0.2.18/28
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	rp1=${NETIFS[p3]}
+	rp2=${NETIFS[p4]}
+
+	adf_vrf_prepare
+	adf_forwarding_enable
+
+	h1_create
+	switch_create
+
+	vrp2_create
+}
+
+vxlan_header_bytes()
+{
+	local vni=$1; shift
+	local -a extra_bits=("$@")
+	local -a bits
+	local i
+
+	for ((i=0; i < 64; i++)); do
+		bits[i]=0
+	done
+
+	# Bit 4 is the I flag and is always on.
+	bits[4]=1
+
+	for i in ${extra_bits[@]}; do
+		bits[i]=1
+	done
+
+	# Bits 32..55 carry the VNI
+	local mask=0x800000
+	for ((i=0; i < 24; i++)); do
+		bits[$((i + 32))]=$(((vni & mask) != 0))
+		((mask >>= 1))
+	done
+
+	local bytes
+	for ((i=0; i < 8; i++)); do
+		local byte=0
+		local j
+		for ((j=0; j < 8; j++)); do
+			local bit=${bits[8 * i + j]}
+			((byte += bit << (7 - j)))
+		done
+		bytes+=$(printf %02x $byte):
+	done
+
+	echo ${bytes%:}
+}
+
+neg_bytes()
+{
+	local bytes=$1; shift
+
+	local -A neg=([0]=f [1]=e [2]=d [3]=c [4]=b [5]=a [6]=9 [7]=8
+		      [8]=7 [9]=6 [a]=5 [b]=4 [c]=3 [d]=2 [e]=1 [f]=0 [:]=:)
+	local out
+	local i
+
+	for ((i=0; i < ${#bytes}; i++)); do
+		local c=${bytes:$i:1}
+		out+=${neg[$c]}
+	done
+	echo $out
+}
+
+vxlan_ping_do()
+{
+	local count=$1; shift
+	local dev=$1; shift
+	local next_hop_mac=$1; shift
+	local dest_ip=$1; shift
+	local dest_mac=$1; shift
+	local vni=$1; shift
+	local reserved_bits=$1; shift
+
+	local vxlan_header=$(vxlan_header_bytes $vni $reserved_bits)
+
+	$MZ $dev -c $count -d 100msec -q \
+		-b $next_hop_mac -B $dest_ip \
+		-t udp sp=23456,dp=$VXPORT,p=$(:
+		    )"$vxlan_header:"$(              : VXLAN
+		    )"$dest_mac:"$(                  : ETH daddr
+		    )"00:11:22:33:44:55:"$(          : ETH saddr
+		    )"08:00:"$(                      : ETH type
+		    )"45:"$(                         : IP version + IHL
+		    )"00:"$(                         : IP TOS
+		    )"00:54:"$(                      : IP total length
+		    )"99:83:"$(                      : IP identification
+		    )"40:00:"$(                      : IP flags + frag off
+		    )"40:"$(                         : IP TTL
+		    )"01:"$(                         : IP proto
+		    )"00:00:"$(                      : IP header csum
+		    )"$(ipv4_to_bytes 192.0.2.3):"$( : IP saddr
+		    )"$(ipv4_to_bytes 192.0.2.1):"$( : IP daddr
+		    )"08:"$(                         : ICMP type
+		    )"00:"$(                         : ICMP code
+		    )"8b:f2:"$(                      : ICMP csum
+		    )"1f:6a:"$(                      : ICMP request identifier
+		    )"00:01:"$(                      : ICMP request seq. number
+		    )"4f:ff:c5:5b:00:00:00:00:"$(    : ICMP payload
+		    )"6d:74:0b:00:00:00:00:00:"$(    :
+		    )"10:11:12:13:14:15:16:17:"$(    :
+		    )"18:19:1a:1b:1c:1d:1e:1f:"$(    :
+		    )"20:21:22:23:24:25:26:27:"$(    :
+		    )"28:29:2a:2b:2c:2d:2e:2f:"$(    :
+		    )"30:31:32:33:34:35:36:37"
+}
+
+vxlan_device_add()
+{
+	adf_ip_link_add vx1 up type vxlan id 1000		\
+		local 192.0.2.17 dstport "$VXPORT"	\
+		nolearning noudpcsum tos inherit ttl 100 "$@"
+	adf_ip_link_set_master vx1 br1
+}
+
+vxlan_all_reserved_bits()
+{
+	local i
+
+	for ((i=0; i < 64; i++)); do
+		if ((i == 4 || i >= 32 && i < 56)); then
+			continue
+		fi
+		echo $i
+	done
+}
+
+vxlan_ping_vanilla()
+{
+	vxlan_ping_do 10 $rp2 $(mac_get $rp1) 192.0.2.17 $(mac_get $h1) 1000
+}
+
+vxlan_ping_reserved()
+{
+	for bit in $(vxlan_all_reserved_bits); do
+		vxlan_ping_do 1 $rp2 $(mac_get $rp1) \
+			      192.0.2.17 $(mac_get $h1) 1000 "$bit"
+		((n++))
+	done
+}
+
+vxlan_ping_test()
+{
+	local what=$1; shift
+	local get_stat=$1; shift
+	local expect=$1; shift
+
+	RET=0
+
+	local t0=$($get_stat)
+
+	"$@"
+	check_err $? "Failure when running $@"
+
+	local t1=$($get_stat)
+	local delta=$((t1 - t0))
+
+	((expect == delta))
+	check_err $? "Expected to capture $expect packets, got $delta."
+
+	log_test "$what"
+}
+
+__default_test_do()
+{
+	local n_allowed_bits=$1; shift
+	local what=$1; shift
+
+	vxlan_ping_test "$what: clean packets" \
+		"tc_rule_stats_get $h1 77 ingress" \
+		10 vxlan_ping_vanilla
+
+	local t0=$(link_stats_get vx1 rx errors)
+	vxlan_ping_test "$what: mangled packets" \
+		"tc_rule_stats_get $h1 77 ingress" \
+		$n_allowed_bits vxlan_ping_reserved
+	local t1=$(link_stats_get vx1 rx errors)
+
+	RET=0
+	local expect=$((39 - n_allowed_bits))
+	local delta=$((t1 - t0))
+	((expect == delta))
+	check_err $? "Expected $expect error packets, got $delta."
+	log_test "$what: drops reported"
+}
+
+default_test_do()
+{
+	vxlan_device_add
+	__default_test_do 0 "Default"
+}
+
+default_test()
+{
+	in_defer_scope \
+	    default_test_do
+}
+
+plain_test_do()
+{
+	vxlan_device_add reserved_bits 0xf7ffffff000000ff
+	__default_test_do 0 "reserved_bits 0xf7ffffff000000ff"
+}
+
+plain_test()
+{
+	in_defer_scope \
+	    plain_test_do
+}
+
+reserved_test()
+{
+	local bit=$1; shift
+
+	local allowed_bytes=$(vxlan_header_bytes 0xffffff $bit)
+	local reserved_bytes=$(neg_bytes $allowed_bytes)
+	local reserved_bits=${reserved_bytes//:/}
+
+	vxlan_device_add reserved_bits 0x$reserved_bits
+	__default_test_do 1 "reserved_bits 0x$reserved_bits"
+}
+
+reserved_0_test()
+{
+	in_defer_scope \
+	    reserved_test 0
+}
+
+reserved_10_test()
+{
+	in_defer_scope \
+	    reserved_test 10
+}
+
+reserved_31_test()
+{
+	in_defer_scope \
+	    reserved_test 31
+}
+
+reserved_56_test()
+{
+	in_defer_scope \
+	    reserved_test 56
+}
+
+reserved_63_test()
+{
+	in_defer_scope \
+	    reserved_test 63
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
new file mode 100755
index 000000000000..5d97fa347d75
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_symmetric.sh
@@ -0,0 +1,561 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# +---------------------------+                +------------------------------+
+# |                    vrf-h1 |                |                       vrf-h2 |
+# |    + $h1                  |                |    + $h2                     |
+# |    | 10.1.1.101/24        |                |    | 10.1.2.101/24           |
+# |    | default via 10.1.1.1 |                |    | default via 10.1.2.1    |
+# +----|----------------------+                +----|-------------------------+
+#      |                                            |
+# +----|--------------------------------------------|-------------------------+
+# | SW |                                            |                         |
+# | +--|--------------------------------------------|-----------------------+ |
+# | |  + $swp1                         br1          + $swp2                 | |
+# | |     vid 10 pvid untagged                         vid 20 pvid untagged | |
+# | |                                                                       | |
+# | |  + vx10                                       + vx20                  | |
+# | |    local 10.0.0.1                               local 10.0.0.1        | |
+# | |    remote 10.0.0.2                              remote 10.0.0.2       | |
+# | |    id 1010                                      id 1020               | |
+# | |    dstport 4789                                 dstport 4789          | |
+# | |    vid 10 pvid untagged                         vid 20 pvid untagged  | |
+# | |                                                                       | |
+# | |                             + vx4001                                  | |
+# | |                               local 10.0.0.1                          | |
+# | |                               remote 10.0.0.2                         | |
+# | |                               id 104001                               | |
+# | |                               dstport 4789                            | |
+# | |                               vid 4001 pvid untagged                  | |
+# | |                                                                       | |
+# | +-----------------------------------+-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------|-----------------------------------+ |
+# | |                                   |                                   | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |  |                                |                                |  | |
+# | |  + vlan10                         |                         vlan20 +  | |
+# | |  | 10.1.1.11/24                   |                   10.1.2.11/24 |  | |
+# | |  |                                |                                |  | |
+# | |  + vlan10-v (macvlan)             +             vlan20-v (macvlan) +  | |
+# | |    10.1.1.1/24                vlan4001                 10.1.2.1/24    | |
+# | |    00:00:5e:00:01:01                             00:00:5e:00:01:01    | |
+# | |                               vrf-green                               | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                       +lo                       |
+# |    | 192.0.2.1/24                                10.0.0.1/32              |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                            vrf-spine                   |
+# |    + $rp2                                                   |
+# |      192.0.2.2/24                                           |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |                                                             |
+# |    + v1 (veth)                                              |
+# |    | 192.0.3.2/24                                           |
+# +----|--------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# |    + v2 (veth)                                  +lo           NS1 (netns) |
+# |      192.0.3.1/24                                10.0.0.2/32              |
+# |                                                                           |
+# | +-----------------------------------------------------------------------+ |
+# | |                               vrf-green                               | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |  | 10.1.1.1/24                                         10.1.2.1/24 |  | |
+# | |  | 00:00:5e:00:01:01                             00:00:5e:00:01:01 |  | |
+# | |  |                            vlan4001                             |  | |
+# | |  + vlan10                         +                         vlan20 +  | |
+# | |  | 10.1.1.12/24                   |                   10.1.2.12/24 |  | |
+# | |  |                                |                                |  | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |                                   |                                   | |
+# | +-----------------------------------|-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------+-----------------------------------+ |
+# | |                                                                       | |
+# | |  + vx10                                     + vx20                    | |
+# | |    local 10.0.0.2                             local 10.0.0.2          | |
+# | |    remote 10.0.0.1                            remote 10.0.0.1         | |
+# | |    id 1010                                    id 1020                 | |
+# | |    dstport 4789                               dstport 4789            | |
+# | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
+# | |                                                                       | |
+# | |                             + vx4001                                  | |
+# | |                               local 10.0.0.2                          | |
+# | |                               remote 10.0.0.1                         | |
+# | |                               id 104001                               | |
+# | |                               dstport 4789                            | |
+# | |                               vid 4001 pvid untagged                  | |
+# | |                                                                       | |
+# | |  + w1 (veth)                                + w3 (veth)               | |
+# | |  | vid 10 pvid untagged          br1        | vid 20 pvid untagged    | |
+# | +--|------------------------------------------|-------------------------+ |
+# |    |                                          |                           |
+# |    |                                          |                           |
+# | +--|----------------------+                +--|-------------------------+ |
+# | |  |               vrf-h1 |                |  |                  vrf-h2 | |
+# | |  + w2 (veth)            |                |  + w4 (veth)               | |
+# | |    10.1.1.102/24        |                |    10.1.2.102/24           | |
+# | |    default via 10.1.1.1 |                |    default via 10.1.2.1    | |
+# | +-------------------------+                +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv4
+"
+NUM_NETIFS=6
+source lib.sh
+
+hx_create()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	vrf_create $vrf_name
+	ip link set dev $if_name master $vrf_name
+	ip link set dev $vrf_name up
+	ip link set dev $if_name up
+
+	ip address add $ip_addr/24 dev $if_name
+	ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+		dev $if_name
+	ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	ip route del default vrf $vrf_name nexthop via $gw_ip
+	ip neigh del $gw_ip dev $if_name
+	ip address del $ip_addr/24 dev $if_name
+
+	ip link set dev $if_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	hx_create "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h1_destroy()
+{
+	hx_destroy "vrf-h1" $h1 10.1.1.101 10.1.1.1
+}
+
+h2_create()
+{
+	hx_create "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+h2_destroy()
+{
+	hx_destroy "vrf-h2" $h2 10.1.2.101 10.1.2.1
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 192.0.2.1/24
+	ip route add 10.0.0.2/32 nexthop via 192.0.2.2
+
+	ip link add name vx10 type vxlan id 1010		\
+		local 10.0.0.1 remote 10.0.0.2 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 1020		\
+		local 10.0.0.1 remote 10.0.0.2 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+	bridge vlan add vid 20 dev $swp2 pvid untagged
+
+	ip link add name vx4001 type vxlan id 104001		\
+		local 10.0.0.1 dstport 4789			\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx4001 up
+
+	ip link set dev vx4001 master br1
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	ip address add 10.0.0.1/32 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 10.1.1.11/24 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.1.1/24 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 10.1.2.11/24 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.2.1/24 dev vlan20-v
+
+	ip link add link br1 name vlan4001 up master vrf-green \
+		type vlan id 4001
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+	bridge vlan add vid 4001 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+
+switch_destroy()
+{
+	sysctl_restore net.ipv4.conf.all.rp_filter
+
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+	bridge vlan del vid 4001 dev br1 self
+	bridge vlan del vid 20 dev br1 self
+	bridge vlan del vid 10 dev br1 self
+
+	ip link del dev vlan4001
+
+	ip link del dev vlan20
+
+	ip link del dev vlan10
+
+	vrf_destroy "vrf-green"
+
+	ip address del 10.0.0.1/32 dev lo
+
+	bridge vlan del vid 20 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 4001 dev vx4001
+	ip link set dev vx4001 nomaster
+
+	ip link set dev vx4001 down
+	ip link del dev vx4001
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	ip route del 10.0.0.2/32 nexthop via 192.0.2.2
+	ip address del dev $rp1 192.0.2.1/24
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+spine_create()
+{
+	vrf_create "vrf-spine"
+	ip link set dev $rp2 master vrf-spine
+	ip link set dev v1 master vrf-spine
+	ip link set dev vrf-spine up
+	ip link set dev $rp2 up
+	ip link set dev v1 up
+
+	ip address add 192.0.2.2/24 dev $rp2
+	ip address add 192.0.3.2/24 dev v1
+
+	ip route add 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+	ip route add 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+}
+
+spine_destroy()
+{
+	ip route del 10.0.0.2/32 vrf vrf-spine nexthop via 192.0.3.1
+	ip route del 10.0.0.1/32 vrf vrf-spine nexthop via 192.0.2.1
+
+	ip address del 192.0.3.2/24 dev v1
+	ip address del 192.0.2.2/24 dev $rp2
+
+	ip link set dev v1 down
+	ip link set dev $rp2 down
+	vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+	hx_create "vrf-h1" w2 10.1.1.102 10.1.1.1
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+	hx_create "vrf-h2" w4 10.1.2.102 10.1.2.1
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	ip link set dev br1 up
+
+	ip link set dev v2 up
+	ip address add dev v2 192.0.3.1/24
+	ip route add 10.0.0.1/32 nexthop via 192.0.3.2
+
+	ip link add name vx10 type vxlan id 1010		\
+		local 10.0.0.2 remote 10.0.0.1 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 1020		\
+		local 10.0.0.2 remote 10.0.0.1 dstport 4789	\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link add name vx4001 type vxlan id 104001		\
+		local 10.0.0.2 dstport 4789			\
+		nolearning noudpcsum tos inherit ttl 100
+	ip link set dev vx4001 up
+
+	ip link set dev vx4001 master br1
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	ip link set dev w1 master br1
+	ip link set dev w1 up
+	bridge vlan add vid 10 dev w1 pvid untagged
+
+	ip link set dev w3 master br1
+	ip link set dev w3 up
+	bridge vlan add vid 20 dev w3 pvid untagged
+
+	ip address add 10.0.0.2/32 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 10.1.1.12/24 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.1.1/24 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 10.1.2.12/24 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 10.1.2.1/24 dev vlan20-v
+
+	ip link add link br1 name vlan4001 up master vrf-green \
+		type vlan id 4001
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+	bridge vlan add vid 4001 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+	sysctl_set net.ipv4.conf.all.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan10-v.rp_filter 0
+	sysctl_set net.ipv4.conf.vlan20-v.rp_filter 0
+}
+export -f ns_switch_create
+
+ns_init()
+{
+	ip link add name w1 type veth peer name w2
+	ip link add name w3 type veth peer name w4
+
+	ip link set dev lo up
+
+	ns_h1_create
+	ns_h2_create
+	ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+__l2_vni_init()
+{
+	local mac1=$1; shift
+	local mac2=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local dst=$1; shift
+
+	bridge fdb add $mac1 dev vx10 self master extern_learn static \
+		dst $dst vlan 10
+	bridge fdb add $mac2 dev vx20 self master extern_learn static \
+		dst $dst vlan 20
+
+	ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+		extern_learn
+	ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+		extern_learn
+}
+export -f __l2_vni_init
+
+l2_vni_init()
+{
+	local h1_ns_mac=$(in_ns ns1 mac_get w2)
+	local h2_ns_mac=$(in_ns ns1 mac_get w4)
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	__l2_vni_init $h1_ns_mac $h2_ns_mac 10.1.1.102 10.1.2.102 10.0.0.2
+	in_ns ns1 __l2_vni_init $h1_mac $h2_mac 10.1.1.101 10.1.2.101 10.0.0.1
+}
+
+__l3_vni_init()
+{
+	local mac=$1; shift
+	local vtep_ip=$1; shift
+	local host1_ip=$1; shift
+	local host2_ip=$1; shift
+
+	bridge fdb add $mac dev vx4001 self master extern_learn static \
+		dst $vtep_ip vlan 4001
+
+	ip neigh add $vtep_ip lladdr $mac nud noarp dev vlan4001 extern_learn
+
+	ip route add $host1_ip/32 vrf vrf-green nexthop via $vtep_ip \
+		dev vlan4001 onlink
+	ip route add $host2_ip/32 vrf vrf-green nexthop via $vtep_ip \
+		dev vlan4001 onlink
+}
+export -f __l3_vni_init
+
+l3_vni_init()
+{
+	local vlan4001_ns_mac=$(in_ns ns1 mac_get vlan4001)
+	local vlan4001_mac=$(mac_get vlan4001)
+
+	__l3_vni_init $vlan4001_ns_mac 10.0.0.2 10.1.1.102 10.1.2.102
+	in_ns ns1 __l3_vni_init $vlan4001_mac 10.0.0.1 10.1.1.101 10.1.2.101
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	spine_create
+	ns1_create
+
+	l2_vni_init
+	l3_vni_init
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns1_destroy
+	spine_destroy
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv4()
+{
+	ping_test $h1 10.1.2.101 ": local->local vid 10->vid 20"
+	ping_test $h1 10.1.1.102 ": local->remote vid 10->vid 10"
+	ping_test $h2 10.1.2.102 ": local->remote vid 20->vid 20"
+	ping_test $h1 10.1.2.102 ": local->remote vid 10->vid 20"
+	ping_test $h2 10.1.1.102 ": local->remote vid 20->vid 10"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh b/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh
new file mode 100755
index 000000000000..904633427fd0
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/vxlan_symmetric_ipv6.sh
@@ -0,0 +1,563 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+
+# +--------------------------------+            +-----------------------------+
+# |                         vrf-h1 |            |                      vrf-h2 |
+# |    + $h1                       |            | + $h2                       |
+# |    | 2001:db8:1::1/64          |            | | 2001:db8:2::1/64          |
+# |    | default via 2001:db8:1::3 |            | | default via 2001:db8:2::3 |
+# +----|---------------------------+            +-|---------------------------+
+#      |                                          |
+# +----|------------------------------------------|---------------------------+
+# | SW |                                          |                           |
+# | +--|------------------------------------------|-------------------------+ |
+# | |  + $swp1                         br1          + $swp2                 | |
+# | |     vid 10 pvid untagged                         vid 20 pvid untagged | |
+# | |                                                                       | |
+# | |  + vx10                                       + vx20                  | |
+# | |    local 2001:db8:3::1                          local 2001:db8:3::1   | |
+# | |    remote 2001:db8:3::2                         remote 2001:db8:3::2  | |
+# | |    id 1010                                      id 1020               | |
+# | |    dstport 4789                                 dstport 4789          | |
+# | |    vid 10 pvid untagged                         vid 20 pvid untagged  | |
+# | |                                                                       | |
+# | |                             + vx4001                                  | |
+# | |                               local 2001:db8:3::1                     | |
+# | |                               remote 2001:db8:3::2                    | |
+# | |                               id 104001                               | |
+# | |                               dstport 4789                            | |
+# | |                               vid 4001 pvid untagged                  | |
+# | |                                                                       | |
+# | +-----------------------------------+-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------|-----------------------------------+ |
+# | |                                   |                                   | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |  |                                |                                |  | |
+# | |  + vlan10                         |                         vlan20 +  | |
+# | |  | 2001:db8:1::2/64               |               2001:db8:2::2/64 |  | |
+# | |  |                                |                                |  | |
+# | |  + vlan10-v (macvlan)             +             vlan20-v (macvlan) +  | |
+# | |    2001:db8:1::3/64           vlan4001            2001:db8:2::3/64    | |
+# | |    00:00:5e:00:01:01                             00:00:5e:00:01:01    | |
+# | |                               vrf-green                               | |
+# | +-----------------------------------------------------------------------+ |
+# |                                                                           |
+# |    + $rp1                                       +lo                       |
+# |    | 2001:db8:4::1/64                           2001:db8:3::1             |
+# +----|----------------------------------------------------------------------+
+#      |
+# +----|--------------------------------------------------------+
+# |    |                            vrf-spine                   |
+# |    + $rp2                                                   |
+# |      2001:db8:4::2/64                                       |
+# |                                                             |   (maybe) HW
+# =============================================================================
+# |                                                             |  (likely) SW
+# |                                                             |
+# |    + v1 (veth)                                              |
+# |    | 2001:db8:5::2/64                                       |
+# +----|--------------------------------------------------------+
+#      |
+# +----|----------------------------------------------------------------------+
+# |    + v2 (veth)                                  +lo           NS1 (netns) |
+# |      2001:db8:5::1/64                            2001:db8:3::2/128        |
+# |                                                                           |
+# | +-----------------------------------------------------------------------+ |
+# | |                               vrf-green                               | |
+# | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
+# | |  | 2001:db8:1::3/64                               2001:db8:2::3/64 |  | |
+# | |  | 00:00:5e:00:01:01                             00:00:5e:00:01:01 |  | |
+# | |  |                            vlan4001                             |  | |
+# | |  + vlan10                         +                         vlan20 +  | |
+# | |  | 2001:db8:1::3/64               |               2001:db8:2::3/64 |  | |
+# | |  |                                |                                |  | |
+# | |  +--------------------------------+--------------------------------+  | |
+# | |                                   |                                   | |
+# | +-----------------------------------|-----------------------------------+ |
+# |                                     |                                     |
+# | +-----------------------------------+-----------------------------------+ |
+# | |                                                                       | |
+# | |  + vx10                                     + vx20                    | |
+# | |    local 2001:db8:3::2                        local 2001:db8:3::2     | |
+# | |    remote 2001:db8:3::1                       remote 2001:db8:3::1    | |
+# | |    id 1010                                    id 1020                 | |
+# | |    dstport 4789                               dstport 4789            | |
+# | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
+# | |                                                                       | |
+# | |                             + vx4001                                  | |
+# | |                               local 2001:db8:3::2                     | |
+# | |                               remote 2001:db8:3::1                    | |
+# | |                               id 104001                               | |
+# | |                               dstport 4789                            | |
+# | |                               vid 4001 pvid untagged                  | |
+# | |                                                                       | |
+# | |  + w1 (veth)                                + w3 (veth)               | |
+# | |  | vid 10 pvid untagged          br1        | vid 20 pvid untagged    | |
+# | +--|------------------------------------------|-------------------------+ |
+# |    |                                          |                           |
+# |    |                                          |                           |
+# | +--|----------------------+                +--|-------------------------+ |
+# | |  |               vrf-h1 |                |  |                  vrf-h2 | |
+# | |  + w2 (veth)            |                |  + w4 (veth)               | |
+# | |    2001:db8:1::4/64     |                |    2001:db8:2::4/64        | |
+# | |    default via          |                |    default via             | |
+# | |    2001:db8:1::3/64     |                |    2001:db8:2::3/64        | |
+# | +-------------------------+                +----------------------------+ |
+# +---------------------------------------------------------------------------+
+
+ALL_TESTS="
+	ping_ipv6
+"
+NUM_NETIFS=6
+source lib.sh
+
+hx_create()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	vrf_create $vrf_name
+	ip link set dev $if_name master $vrf_name
+	ip link set dev $vrf_name up
+	ip link set dev $if_name up
+
+	ip address add $ip_addr/64 dev $if_name
+	ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
+		dev $if_name
+	ip route add default vrf $vrf_name nexthop via $gw_ip
+}
+export -f hx_create
+
+hx_destroy()
+{
+	local vrf_name=$1; shift
+	local if_name=$1; shift
+	local ip_addr=$1; shift
+	local gw_ip=$1; shift
+
+	ip route del default vrf $vrf_name nexthop via $gw_ip
+	ip neigh del $gw_ip dev $if_name
+	ip address del $ip_addr/64 dev $if_name
+
+	ip link set dev $if_name down
+	vrf_destroy $vrf_name
+}
+
+h1_create()
+{
+	hx_create "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
+}
+
+h1_destroy()
+{
+	hx_destroy "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
+}
+
+h2_create()
+{
+	hx_create "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
+}
+
+h2_destroy()
+{
+	hx_destroy "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
+}
+
+switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	# Make sure the bridge uses the MAC address of the local port and not
+	# that of the VxLAN's device.
+	ip link set dev br1 address $(mac_get $swp1)
+	ip link set dev br1 up
+
+	ip link set dev $rp1 up
+	ip address add dev $rp1 2001:db8:4::1/64
+	ip route add 2001:db8:3::2/128 nexthop via 2001:db8:4::2
+
+	ip link add name vx10 type vxlan id 1010		\
+		local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 1020		\
+		local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link set dev $swp1 master br1
+	ip link set dev $swp1 up
+
+	ip link set dev $swp2 master br1
+	ip link set dev $swp2 up
+
+	ip link add name vx4001 type vxlan id 104001		\
+		local 2001:db8:3::1 dstport 4789			\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx4001 up
+
+	ip link set dev vx4001 master br1
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	ip address add 2001:db8:3::1/128 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 2001:db8:1::2/64 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:1::3/64 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 2001:db8:2::2/64 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:2::3/64 dev vlan20-v
+
+	ip link add link br1 name vlan4001 up master vrf-green \
+		type vlan id 4001
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+	bridge vlan add vid 4001 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+
+	bridge vlan add vid 10 dev $swp1 pvid untagged
+	bridge vlan add vid 20 dev $swp2 pvid untagged
+}
+
+switch_destroy()
+{
+	bridge vlan del vid 20 dev br1 self
+	bridge vlan del vid 10 dev br1 self
+
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
+	bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
+
+	bridge vlan del vid 4001 dev br1 self
+	ip link del dev vlan4001
+
+	ip link del dev vlan20
+
+	ip link del dev vlan10
+
+	vrf_destroy "vrf-green"
+
+	ip address del 2001:db8:3::1/128 dev lo
+
+	bridge vlan del vid 20 dev $swp2
+	ip link set dev $swp2 down
+	ip link set dev $swp2 nomaster
+
+	bridge vlan del vid 10 dev $swp1
+	ip link set dev $swp1 down
+	ip link set dev $swp1 nomaster
+
+	bridge vlan del vid 4001 dev vx4001
+	ip link set dev vx4001 nomaster
+
+	ip link set dev vx4001 down
+	ip link del dev vx4001
+
+	bridge vlan del vid 20 dev vx20
+	ip link set dev vx20 nomaster
+
+	ip link set dev vx20 down
+	ip link del dev vx20
+
+	bridge vlan del vid 10 dev vx10
+	ip link set dev vx10 nomaster
+
+	ip link set dev vx10 down
+	ip link del dev vx10
+
+	ip route del 2001:db8:3::2 nexthop via 2001:db8:4::2
+	ip address del dev $rp1 2001:db8:4::1/64
+	ip link set dev $rp1 down
+
+	ip link set dev br1 down
+	ip link del dev br1
+}
+
+spine_create()
+{
+	vrf_create "vrf-spine"
+	ip link set dev $rp2 master vrf-spine
+	ip link set dev v1 master vrf-spine
+	ip link set dev vrf-spine up
+	ip link set dev $rp2 up
+	ip link set dev v1 up
+
+	ip address add 2001:db8:4::2/64 dev $rp2
+	ip address add 2001:db8:5::2/64 dev v1
+
+	ip route add 2001:db8:3::1/128 vrf vrf-spine nexthop via \
+		2001:db8:4::1
+	ip route add 2001:db8:3::2/128 vrf vrf-spine nexthop via \
+		2001:db8:5::1
+}
+
+spine_destroy()
+{
+	ip route del 2001:db8:3::2/128 vrf vrf-spine nexthop via \
+		2001:db8:5::1
+	ip route del 2001:db8:3::1/128 vrf vrf-spine nexthop via \
+		2001:db8:4::1
+
+	ip address del 2001:db8:5::2/64 dev v1
+	ip address del 2001:db8:4::2/64 dev $rp2
+
+	ip link set dev v1 down
+	ip link set dev $rp2 down
+	vrf_destroy "vrf-spine"
+}
+
+ns_h1_create()
+{
+	hx_create "vrf-h1" w2 2001:db8:1::4 2001:db8:1::3
+}
+export -f ns_h1_create
+
+ns_h2_create()
+{
+	hx_create "vrf-h2" w4 2001:db8:2::4 2001:db8:2::3
+}
+export -f ns_h2_create
+
+ns_switch_create()
+{
+	ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	ip link set dev br1 up
+
+	ip link set dev v2 up
+	ip address add dev v2 2001:db8:5::1/64
+	ip route add 2001:db8:3::1 nexthop via 2001:db8:5::2
+
+	ip link add name vx10 type vxlan id 1010		\
+		local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx10 up
+
+	ip link set dev vx10 master br1
+	bridge vlan add vid 10 dev vx10 pvid untagged
+
+	ip link add name vx20 type vxlan id 1020		\
+		local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789	\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx20 up
+
+	ip link set dev vx20 master br1
+	bridge vlan add vid 20 dev vx20 pvid untagged
+
+	ip link add name vx4001 type vxlan id 104001		\
+		local 2001:db8:3::2 dstport 4789			\
+		nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
+	ip link set dev vx4001 up
+
+	ip link set dev vx4001 master br1
+	bridge vlan add vid 4001 dev vx4001 pvid untagged
+
+	ip link set dev w1 master br1
+	ip link set dev w1 up
+	bridge vlan add vid 10 dev w1 pvid untagged
+
+	ip link set dev w3 master br1
+	ip link set dev w3 up
+	bridge vlan add vid 20 dev w3 pvid untagged
+
+	ip address add 2001:db8:3::2/128 dev lo
+
+	# Create SVIs
+	vrf_create "vrf-green"
+	ip link set dev vrf-green up
+
+	ip link add link br1 name vlan10 up master vrf-green type vlan id 10
+	ip address add 2001:db8:1::3/64 dev vlan10
+	ip link add link vlan10 name vlan10-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:1::3/64 dev vlan10-v
+
+	ip link add link br1 name vlan20 up master vrf-green type vlan id 20
+	ip address add 2001:db8:2::3/64 dev vlan20
+	ip link add link vlan20 name vlan20-v up master vrf-green \
+		address 00:00:5e:00:01:01 type macvlan mode private
+	ip address add 2001:db8:2::3/64 dev vlan20-v
+
+	ip link add link br1 name vlan4001 up master vrf-green \
+		type vlan id 4001
+
+	bridge vlan add vid 10 dev br1 self
+	bridge vlan add vid 20 dev br1 self
+	bridge vlan add vid 4001 dev br1 self
+
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
+	bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
+}
+export -f ns_switch_create
+
+ns_init()
+{
+	ip link add name w1 type veth peer name w2
+	ip link add name w3 type veth peer name w4
+
+	ip link set dev lo up
+
+	ns_h1_create
+	ns_h2_create
+	ns_switch_create
+}
+export -f ns_init
+
+ns1_create()
+{
+	ip netns add ns1
+	ip link set dev v2 netns ns1
+	in_ns ns1 ns_init
+}
+
+ns1_destroy()
+{
+	ip netns exec ns1 ip link set dev v2 netns 1
+	ip netns del ns1
+}
+
+__l2_vni_init()
+{
+	local mac1=$1; shift
+	local mac2=$1; shift
+	local ip1=$1; shift
+	local ip2=$1; shift
+	local dst=$1; shift
+
+	bridge fdb add $mac1 dev vx10 self master extern_learn static \
+		dst $dst vlan 10
+	bridge fdb add $mac2 dev vx20 self master extern_learn static \
+		dst $dst vlan 20
+
+	ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
+		extern_learn
+	ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
+		extern_learn
+}
+export -f __l2_vni_init
+
+l2_vni_init()
+{
+	local h1_ns_mac=$(in_ns ns1 mac_get w2)
+	local h2_ns_mac=$(in_ns ns1 mac_get w4)
+	local h1_mac=$(mac_get $h1)
+	local h2_mac=$(mac_get $h2)
+
+	__l2_vni_init $h1_ns_mac $h2_ns_mac 2001:db8:1::4 2001:db8:2::4 \
+	       2001:db8:3::2
+	in_ns ns1 __l2_vni_init $h1_mac $h2_mac 2001:db8:1::1 2001:db8:2::1 \
+	       2001:db8:3::1
+}
+
+__l3_vni_init()
+{
+	local mac=$1; shift
+	local vtep_ip=$1; shift
+	local host1_ip=$1; shift
+	local host2_ip=$1; shift
+
+	bridge fdb add $mac dev vx4001 self master extern_learn static \
+		dst $vtep_ip vlan 4001
+
+	ip neigh add $vtep_ip lladdr $mac nud noarp dev vlan4001 extern_learn
+
+	ip route add $host1_ip/128 vrf vrf-green nexthop via $vtep_ip \
+		dev vlan4001 onlink
+	ip route add $host2_ip/128 vrf vrf-green nexthop via $vtep_ip \
+		dev vlan4001 onlink
+}
+export -f __l3_vni_init
+
+l3_vni_init()
+{
+	local vlan4001_ns_mac=$(in_ns ns1 mac_get vlan4001)
+	local vlan4001_mac=$(mac_get vlan4001)
+
+	__l3_vni_init $vlan4001_ns_mac 2001:db8:3::2 2001:db8:1::4 \
+		2001:db8:2::4
+	in_ns ns1 __l3_vni_init $vlan4001_mac 2001:db8:3::1 2001:db8:1::1 \
+		2001:db8:2::1
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	rp1=${NETIFS[p5]}
+	rp2=${NETIFS[p6]}
+
+	vrf_prepare
+	forwarding_enable
+
+	h1_create
+	h2_create
+	switch_create
+
+	ip link add name v1 type veth peer name v2
+	spine_create
+	ns1_create
+	in_ns ns1 forwarding_enable
+
+	l2_vni_init
+	l3_vni_init
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	ns1_destroy
+	spine_destroy
+	ip link del dev v1
+
+	switch_destroy
+	h2_destroy
+	h1_destroy
+
+	forwarding_restore
+	vrf_cleanup
+}
+
+ping_ipv6()
+{
+	ping6_test $h1 2001:db8:2::1 ": local->local vid 10->vid 20"
+	ping6_test $h1 2001:db8:1::4 ": local->remote vid 10->vid 10"
+	ping6_test $h2 2001:db8:2::4 ": local->remote vid 20->vid 20"
+	ping6_test $h1 2001:db8:2::4 ": local->remote vid 10->vid 20"
+	ping6_test $h2 2001:db8:1::4 ": local->remote vid 20->vid 10"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/fq_band_pktlimit.sh b/tools/testing/selftests/net/fq_band_pktlimit.sh
new file mode 100755
index 000000000000..977070ed42b3
--- /dev/null
+++ b/tools/testing/selftests/net/fq_band_pktlimit.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Verify that FQ has a packet limit per band:
+#
+# 1. set the limit to 10 per band
+# 2. send 20 pkts on band A: verify that 10 are queued, 10 dropped
+# 3. send 20 pkts on band A: verify that  0 are queued, 20 dropped
+# 4. send 20 pkts on band B: verify that 10 are queued, 10 dropped
+#
+# Send packets with a delay to ensure that previously sent
+# packets are still queued when later ones are sent.
+# Use SO_TXTIME for this.
+
+die() {
+	echo "$1"
+	exit 1
+}
+
+# run inside private netns
+if [[ $# -eq 0 ]]; then
+	./in_netns.sh "$0" __subprocess
+	exit
+fi
+
+ip link add type dummy
+ip link set dev dummy0 up
+ip -6 addr add fdaa::1/128 dev dummy0
+ip -6 route add fdaa::/64 dev dummy0
+tc qdisc replace dev dummy0 root handle 1: fq quantum 1514 initial_quantum 1514 limit 10
+
+DELAY=400000
+
+./cmsg_sender -6 -p u -d "${DELAY}" -n 20 fdaa::2 8000
+OUT1="$(tc -s qdisc show dev dummy0 | grep '^\ Sent')"
+
+./cmsg_sender -6 -p u -d "${DELAY}" -n 20 fdaa::2 8000
+OUT2="$(tc -s qdisc show dev dummy0 | grep '^\ Sent')"
+
+./cmsg_sender -6 -p u -d "${DELAY}" -n 20 -P 7 fdaa::2 8000
+OUT3="$(tc -s qdisc show dev dummy0 | grep '^\ Sent')"
+
+# Initial stats will report zero sent, as all packets are still
+# queued in FQ. Sleep for at least the delay period and see that
+# twenty are now sent.
+sleep 0.6
+OUT4="$(tc -s qdisc show dev dummy0 | grep '^\ Sent')"
+
+# Log the output after the test
+echo "${OUT1}"
+echo "${OUT2}"
+echo "${OUT3}"
+echo "${OUT4}"
+
+# Test the output for expected values
+echo "${OUT1}" | grep -q '0\ pkt\ (dropped\ 10'  || die "unexpected drop count at 1"
+echo "${OUT2}" | grep -q '0\ pkt\ (dropped\ 30'  || die "unexpected drop count at 2"
+echo "${OUT3}" | grep -q '0\ pkt\ (dropped\ 40'  || die "unexpected drop count at 3"
+echo "${OUT4}" | grep -q '20\ pkt\ (dropped\ 40' || die "unexpected accept count at 4"
diff --git a/tools/testing/selftests/net/gre_gso.sh b/tools/testing/selftests/net/gre_gso.sh
new file mode 100755
index 000000000000..5100d90f92d2
--- /dev/null
+++ b/tools/testing/selftests/net/gre_gso.sh
@@ -0,0 +1,235 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking GRE GSO.
+source lib.sh
+ret=0
+
+# all tests in this script. Can be overridden with -t option
+TESTS="gre_gso"
+
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+TMPFILE=`mktemp`
+PID=
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+}
+
+setup()
+{
+	set -e
+	setup_ns ns1
+	IP="ip -netns $ns1"
+	NS_EXEC="ip netns exec $ns1"
+
+	ip link add veth0 type veth peer name veth1
+	ip link set veth0 up
+	ip link set veth1 netns $ns1
+	$IP link set veth1 name veth0
+	$IP link set veth0 up
+
+	dd if=/dev/urandom of=$TMPFILE bs=1024 count=2048 &>/dev/null
+	set +e
+}
+
+cleanup()
+{
+	rm -rf $TMPFILE
+	[ -n "$PID" ] && kill $PID
+	ip link del dev gre1 &> /dev/null
+	ip link del dev veth0 &> /dev/null
+	cleanup_ns $ns1
+}
+
+get_linklocal()
+{
+	local dev=$1
+	local ns=$2
+	local addr
+
+	[ -n "$ns" ] && ns="-netns $ns"
+
+	addr=$(ip -6 -br $ns addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+gre_create_tun()
+{
+	local a1=$1
+	local a2=$2
+	local mode
+
+	[[ $a1 =~ ^[0-9.]*$ ]] && mode=gre || mode=ip6gre
+
+	ip tunnel add gre1 mode $mode local $a1 remote $a2 dev veth0
+	ip link set gre1 up
+	$IP tunnel add gre1 mode $mode local $a2 remote $a1 dev veth0
+	$IP link set gre1 up
+}
+
+gre_gst_test_checks()
+{
+	local name=$1
+	local addr=$2
+	local proto=$3
+
+	[ "$proto" == 6 ] && addr="[$addr]"
+
+	$NS_EXEC socat - tcp${proto}-listen:$port,reuseaddr,fork >/dev/null &
+	PID=$!
+	while ! $NS_EXEC ss -ltn | grep -q $port; do ((i++)); sleep 0.01; done
+
+	cat $TMPFILE | timeout 1 socat -u STDIN TCP:$addr:$port
+	log_test $? 0 "$name - copy file w/ TSO"
+
+	ethtool -K veth0 tso off
+
+	cat $TMPFILE | timeout 1 socat -u STDIN TCP:$addr:$port
+	log_test $? 0 "$name - copy file w/ GSO"
+
+	ethtool -K veth0 tso on
+
+	kill $PID
+	PID=
+}
+
+gre6_gso_test()
+{
+	local port=7777
+
+	setup
+
+	a1=$(get_linklocal veth0)
+	a2=$(get_linklocal veth0 $ns1)
+
+	gre_create_tun $a1 $a2
+
+	ip  addr add 172.16.2.1/24 dev gre1
+	$IP addr add 172.16.2.2/24 dev gre1
+
+	ip  -6 addr add 2001:db8:1::1/64 dev gre1 nodad
+	$IP -6 addr add 2001:db8:1::2/64 dev gre1 nodad
+
+	sleep 2
+
+	gre_gst_test_checks GREv6/v4 172.16.2.2 4
+	gre_gst_test_checks GREv6/v6 2001:db8:1::2 6
+
+	cleanup
+}
+
+gre_gso_test()
+{
+	gre6_gso_test
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :t:pPhv o
+do
+	case $o in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+PEER_CMD="ip netns exec ${PEER_NS}"
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v socat)" ]; then
+	echo "SKIP: Could not run test without socat tool"
+	exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+for t in $TESTS
+do
+	case $t in
+	gre_gso)		gre_gso_test;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+	esac
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/gre_ipv6_lladdr.sh b/tools/testing/selftests/net/gre_ipv6_lladdr.sh
new file mode 100755
index 000000000000..48eb999a3120
--- /dev/null
+++ b/tools/testing/selftests/net/gre_ipv6_lladdr.sh
@@ -0,0 +1,184 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./lib.sh
+
+PAUSE_ON_FAIL="no"
+
+# The trap function handler
+#
+exit_cleanup_all()
+{
+	cleanup_all_ns
+
+	exit "${EXIT_STATUS}"
+}
+
+# Add fake IPv4 and IPv6 networks on the loopback device, to be used as
+# underlay by future GRE devices.
+#
+setup_basenet()
+{
+	ip -netns "${NS0}" link set dev lo up
+	ip -netns "${NS0}" address add dev lo 192.0.2.10/24
+	ip -netns "${NS0}" address add dev lo 2001:db8::10/64 nodad
+}
+
+# Check the IPv6 configuration of a network device.
+#
+# We currently check the generation of the link-local IPv6 address and the
+# creation of the ff00::/8 multicast route.
+#
+# Parameters:
+#
+#   * $1: The network device to test
+#   * $2: An extra regular expression that should be matched (to verify the
+#         presence of extra attributes)
+#   * $3: The expected return code from grep (to allow checking the absence of
+#         a link-local address)
+#   * $4: The user visible name for the scenario being tested
+#
+check_ipv6_device_config()
+{
+	local DEV="$1"
+	local EXTRA_MATCH="$2"
+	local XRET="$3"
+	local MSG="$4"
+
+	RET=0
+	set +e
+	ip -netns "${NS0}" -6 address show dev "${DEV}" scope link | grep "fe80::" | grep -q "${EXTRA_MATCH}"
+	check_err_fail "${XRET}" $? "IPv6 link-local address generation"
+
+	ip -netns "${NS0}" -6 route show table local type multicast ff00::/8 proto kernel | grep -q "${DEV}"
+	check_err_fail 0 $? "IPv6 multicast route creation"
+
+	log_test "${MSG}"
+	set -e
+}
+
+# Create a GRE device and verify that it gets an IPv6 link-local address as
+# expected.
+#
+# Parameters:
+#
+#   * $1: The device type (gre, ip6gre, gretap or ip6gretap)
+#   * $2: The local underlay IP address (can be an IPv4, an IPv6 or "any")
+#   * $3: The remote underlay IP address (can be an IPv4, an IPv6 or "any")
+#   * $4: The IPv6 interface identifier generation mode to use for the GRE
+#         device (eui64, none, stable-privacy or random).
+#
+test_gre_device()
+{
+	local GRE_TYPE="$1"
+	local LOCAL_IP="$2"
+	local REMOTE_IP="$3"
+	local MODE="$4"
+	local ADDR_GEN_MODE
+	local MATCH_REGEXP
+	local MSG
+
+	ip link add netns "${NS0}" name gretest type "${GRE_TYPE}" local "${LOCAL_IP}" remote "${REMOTE_IP}"
+
+	case "${MODE}" in
+	    "eui64")
+		ADDR_GEN_MODE=0
+		MATCH_REGEXP=""
+		MSG="${GRE_TYPE}, mode: 0 (EUI64), ${LOCAL_IP} -> ${REMOTE_IP}"
+		XRET=0
+		;;
+	    "none")
+		ADDR_GEN_MODE=1
+		MATCH_REGEXP=""
+		MSG="${GRE_TYPE}, mode: 1 (none), ${LOCAL_IP} -> ${REMOTE_IP}"
+		XRET=1 # No link-local address should be generated
+		;;
+	    "stable-privacy")
+		ADDR_GEN_MODE=2
+		MATCH_REGEXP="stable-privacy"
+		MSG="${GRE_TYPE}, mode: 2 (stable privacy), ${LOCAL_IP} -> ${REMOTE_IP}"
+		XRET=0
+		# Initialise stable_secret (required for stable-privacy mode)
+		ip netns exec "${NS0}" sysctl -qw net.ipv6.conf.gretest.stable_secret="2001:db8::abcd"
+		;;
+	    "random")
+		ADDR_GEN_MODE=3
+		MATCH_REGEXP="stable-privacy"
+		MSG="${GRE_TYPE}, mode: 3 (random), ${LOCAL_IP} -> ${REMOTE_IP}"
+		XRET=0
+		;;
+	esac
+
+	# Check the IPv6 device configuration when it goes up
+	ip netns exec "${NS0}" sysctl -qw net.ipv6.conf.gretest.addr_gen_mode="${ADDR_GEN_MODE}"
+	ip -netns "${NS0}" link set dev gretest up
+	check_ipv6_device_config gretest "${MATCH_REGEXP}" "${XRET}" "config: ${MSG}"
+
+	# Now disable link-local address generation
+	ip -netns "${NS0}" link set dev gretest down
+	ip netns exec "${NS0}" sysctl -qw net.ipv6.conf.gretest.addr_gen_mode=1
+	ip -netns "${NS0}" link set dev gretest up
+
+	# Check the IPv6 device configuration when link-local address
+	# generation is re-enabled while the device is already up
+	ip netns exec "${NS0}" sysctl -qw net.ipv6.conf.gretest.addr_gen_mode="${ADDR_GEN_MODE}"
+	check_ipv6_device_config gretest "${MATCH_REGEXP}" "${XRET}" "update: ${MSG}"
+
+	ip -netns "${NS0}" link del dev gretest
+}
+
+test_gre4()
+{
+	local GRE_TYPE
+	local MODE
+
+	for GRE_TYPE in "gre" "gretap"; do
+		printf "\n####\nTesting IPv6 configuration of ${GRE_TYPE} devices\n####\n\n"
+
+		for MODE in "eui64" "none" "stable-privacy" "random"; do
+			test_gre_device "${GRE_TYPE}" 192.0.2.10 192.0.2.11 "${MODE}"
+			test_gre_device "${GRE_TYPE}" any 192.0.2.11 "${MODE}"
+			test_gre_device "${GRE_TYPE}" 192.0.2.10 any "${MODE}"
+		done
+	done
+}
+
+test_gre6()
+{
+	local GRE_TYPE
+	local MODE
+
+	for GRE_TYPE in "ip6gre" "ip6gretap"; do
+		printf "\n####\nTesting IPv6 configuration of ${GRE_TYPE} devices\n####\n\n"
+
+		for MODE in "eui64" "none" "stable-privacy" "random"; do
+			test_gre_device "${GRE_TYPE}" 2001:db8::10 2001:db8::11 "${MODE}"
+			test_gre_device "${GRE_TYPE}" any 2001:db8::11 "${MODE}"
+			test_gre_device "${GRE_TYPE}" 2001:db8::10 any "${MODE}"
+		done
+	done
+}
+
+usage()
+{
+	echo "Usage: $0 [-p]"
+	exit 1
+}
+
+while getopts :p o
+do
+	case $o in
+		p) PAUSE_ON_FAIL="yes";;
+		*) usage;;
+	esac
+done
+
+setup_ns NS0
+
+set -e
+trap exit_cleanup_all EXIT
+
+setup_basenet
+
+test_gre4
+test_gre6
diff --git a/tools/testing/selftests/net/hsr/Makefile b/tools/testing/selftests/net/hsr/Makefile
new file mode 100644
index 000000000000..4b6afc0fe9f8
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+TEST_PROGS := \
+	hsr_ping.sh \
+	hsr_redbox.sh \
+# end of TEST_PROGS
+
+TEST_FILES += hsr_common.sh
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/hsr/config b/tools/testing/selftests/net/hsr/config
new file mode 100644
index 000000000000..205cc4d3d64b
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/config
@@ -0,0 +1,6 @@
+CONFIG_BRIDGE=y
+CONFIG_HSR=y
+CONFIG_IPV6=y
+CONFIG_NET_SCH_NETEM=m
+CONFIG_VETH=y
+CONFIG_VLAN_8021Q=m
diff --git a/tools/testing/selftests/net/hsr/hsr_common.sh b/tools/testing/selftests/net/hsr/hsr_common.sh
new file mode 100644
index 000000000000..1dc882ac1c74
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/hsr_common.sh
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: GPL-2.0
+# Common code for HSR testing scripts
+
+source ../lib.sh
+ret=0
+ksft_skip=4
+
+# $1: IP address
+is_v6()
+{
+	[ -z "${1##*:*}" ]
+}
+
+do_ping()
+{
+	local netns="$1"
+	local connect_addr="$2"
+	local ping_args="-q -c 2 -i 0.1"
+
+	if is_v6 "${connect_addr}"; then
+		$ipv6 || return 0
+		ping_args="${ping_args} -6"
+	fi
+
+	ip netns exec ${netns} ping ${ping_args} $connect_addr >/dev/null
+	if [ $? -ne 0 ] ; then
+		echo "$netns -> $connect_addr connectivity [ FAIL ]" 1>&2
+		ret=1
+		return 1
+	fi
+
+	return 0
+}
+
+do_ping_long()
+{
+	local netns="$1"
+	local connect_addr="$2"
+	local ping_args="-q -c 10 -i 0.1"
+
+	if is_v6 "${connect_addr}"; then
+		$ipv6 || return 0
+		ping_args="${ping_args} -6"
+	fi
+
+	OUT="$(LANG=C ip netns exec ${netns} ping ${ping_args} $connect_addr | grep received)"
+	if [ $? -ne 0 ] ; then
+		echo "$netns -> $connect_addr ping [ FAIL ]" 1>&2
+		ret=1
+		return 1
+	fi
+
+	VAL="$(echo $OUT | cut -d' ' -f1-8)"
+	SED_VAL="$(echo ${VAL} | sed -r -e 's/([0-9]{2}).*([0-9]{2}).*[[:space:]]([0-9]+%).*/\1 transmitted \2 received \3 loss/')"
+	if [ "${SED_VAL}" != "10 transmitted 10 received 0% loss" ]
+	then
+		echo "$netns -> $connect_addr ping TEST [ FAIL ]"
+		echo "Expect to send and receive 10 packets and no duplicates."
+		echo "Full message: ${OUT}."
+		ret=1
+		return 1
+	fi
+
+	return 0
+}
+
+stop_if_error()
+{
+	local msg="$1"
+
+	if [ ${ret} -ne 0 ]; then
+		echo "FAIL: ${msg}" 1>&2
+		exit ${ret}
+	fi
+}
+
+check_prerequisites()
+{
+	ip -Version > /dev/null 2>&1
+	if [ $? -ne 0 ];then
+		echo "SKIP: Could not run test without ip tool"
+		exit $ksft_skip
+	fi
+}
diff --git a/tools/testing/selftests/net/hsr/hsr_ping.sh b/tools/testing/selftests/net/hsr/hsr_ping.sh
new file mode 100755
index 000000000000..5a65f4f836be
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/hsr_ping.sh
@@ -0,0 +1,289 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ipv6=true
+
+source ./hsr_common.sh
+
+optstring="h4"
+usage() {
+	echo "Usage: $0 [OPTION]"
+	echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
+}
+
+while getopts "$optstring" option;do
+	case "$option" in
+	"h")
+		usage $0
+		exit 0
+		;;
+	"4")
+		ipv6=false
+		;;
+	"?")
+		usage $0
+		exit 1
+		;;
+esac
+done
+
+do_complete_ping_test()
+{
+	echo "INFO: Initial validation ping."
+	# Each node has to be able each one.
+	do_ping "$ns1" 100.64.0.2
+	do_ping "$ns2" 100.64.0.1
+	do_ping "$ns3" 100.64.0.1
+	stop_if_error "Initial validation failed."
+
+	do_ping "$ns1" 100.64.0.3
+	do_ping "$ns2" 100.64.0.3
+	do_ping "$ns3" 100.64.0.2
+
+	do_ping "$ns1" dead:beef:1::2
+	do_ping "$ns1" dead:beef:1::3
+	do_ping "$ns2" dead:beef:1::1
+	do_ping "$ns2" dead:beef:1::2
+	do_ping "$ns3" dead:beef:1::1
+	do_ping "$ns3" dead:beef:1::2
+
+	stop_if_error "Initial validation failed."
+
+# Wait until supervisor all supervision frames have been processed and the node
+# entries have been merged. Otherwise duplicate frames will be observed which is
+# valid at this stage.
+	WAIT=5
+	while [ ${WAIT} -gt 0 ]
+	do
+		grep 00:00:00:00:00:00 /sys/kernel/debug/hsr/hsr*/node_table
+		if [ $? -ne 0 ]
+		then
+			break
+		fi
+		sleep 1
+		let "WAIT = WAIT - 1"
+	done
+
+# Just a safety delay in case the above check didn't handle it.
+	sleep 1
+
+	echo "INFO: Longer ping test."
+	do_ping_long "$ns1" 100.64.0.2
+	do_ping_long "$ns1" dead:beef:1::2
+	do_ping_long "$ns1" 100.64.0.3
+	do_ping_long "$ns1" dead:beef:1::3
+
+	stop_if_error "Longer ping test failed."
+
+	do_ping_long "$ns2" 100.64.0.1
+	do_ping_long "$ns2" dead:beef:1::1
+	do_ping_long "$ns2" 100.64.0.3
+	do_ping_long "$ns2" dead:beef:1::2
+	stop_if_error "Longer ping test failed."
+
+	do_ping_long "$ns3" 100.64.0.1
+	do_ping_long "$ns3" dead:beef:1::1
+	do_ping_long "$ns3" 100.64.0.2
+	do_ping_long "$ns3" dead:beef:1::2
+	stop_if_error "Longer ping test failed."
+
+	echo "INFO: Cutting one link."
+	do_ping_long "$ns1" 100.64.0.3 &
+
+	sleep 3
+	ip -net "$ns3" link set ns3eth1 down
+	wait
+
+	ip -net "$ns3" link set ns3eth1 up
+
+	stop_if_error "Failed with one link down."
+
+	echo "INFO: Delay the link and drop a few packages."
+	tc -net "$ns3" qdisc add dev ns3eth1 root netem delay 50ms
+	tc -net "$ns2" qdisc add dev ns2eth1 root netem delay 5ms loss 25%
+
+	do_ping_long "$ns1" 100.64.0.2
+	do_ping_long "$ns1" 100.64.0.3
+
+	stop_if_error "Failed with delay and packetloss."
+
+	do_ping_long "$ns2" 100.64.0.1
+	do_ping_long "$ns2" 100.64.0.3
+
+	stop_if_error "Failed with delay and packetloss."
+
+	do_ping_long "$ns3" 100.64.0.1
+	do_ping_long "$ns3" 100.64.0.2
+	stop_if_error "Failed with delay and packetloss."
+
+	echo "INFO: All good."
+}
+
+setup_hsr_interfaces()
+{
+	local HSRv="$1"
+
+	echo "INFO: preparing interfaces for HSRv${HSRv}."
+# Three HSR nodes. Each node has one link to each of its neighbour, two links in total.
+#
+#    ns1eth1 ----- ns2eth1
+#      hsr1         hsr2
+#    ns1eth2       ns2eth2
+#       |            |
+#    ns3eth1      ns3eth2
+#           \    /
+#            hsr3
+#
+	# Interfaces
+	ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+	ip link add ns1eth2 netns "$ns1" type veth peer name ns3eth1 netns "$ns3"
+	ip link add ns3eth2 netns "$ns3" type veth peer name ns2eth2 netns "$ns2"
+
+	# HSRv0/1
+	ip -net "$ns1" link add name hsr1 type hsr slave1 ns1eth1 slave2 ns1eth2 supervision 45 version $HSRv proto 0
+	ip -net "$ns2" link add name hsr2 type hsr slave1 ns2eth1 slave2 ns2eth2 supervision 45 version $HSRv proto 0
+	ip -net "$ns3" link add name hsr3 type hsr slave1 ns3eth1 slave2 ns3eth2 supervision 45 version $HSRv proto 0
+
+	# IP for HSR
+	ip -net "$ns1" addr add 100.64.0.1/24 dev hsr1
+	ip -net "$ns1" addr add dead:beef:1::1/64 dev hsr1 nodad
+	ip -net "$ns2" addr add 100.64.0.2/24 dev hsr2
+	ip -net "$ns2" addr add dead:beef:1::2/64 dev hsr2 nodad
+	ip -net "$ns3" addr add 100.64.0.3/24 dev hsr3
+	ip -net "$ns3" addr add dead:beef:1::3/64 dev hsr3 nodad
+
+	ip -net "$ns1" link set address 00:11:22:00:01:01 dev ns1eth1
+	ip -net "$ns1" link set address 00:11:22:00:01:02 dev ns1eth2
+
+	ip -net "$ns2" link set address 00:11:22:00:02:01 dev ns2eth1
+	ip -net "$ns2" link set address 00:11:22:00:02:02 dev ns2eth2
+
+	ip -net "$ns3" link set address 00:11:22:00:03:01 dev ns3eth1
+	ip -net "$ns3" link set address 00:11:22:00:03:02 dev ns3eth2
+
+	# All Links up
+	ip -net "$ns1" link set ns1eth1 up
+	ip -net "$ns1" link set ns1eth2 up
+	ip -net "$ns1" link set hsr1 up
+
+	ip -net "$ns2" link set ns2eth1 up
+	ip -net "$ns2" link set ns2eth2 up
+	ip -net "$ns2" link set hsr2 up
+
+	ip -net "$ns3" link set ns3eth1 up
+	ip -net "$ns3" link set ns3eth2 up
+	ip -net "$ns3" link set hsr3 up
+}
+
+setup_vlan_interfaces() {
+	ip -net "$ns1" link add link hsr1 name hsr1.2 type vlan id 2
+	ip -net "$ns1" link add link hsr1 name hsr1.3 type vlan id 3
+	ip -net "$ns1" link add link hsr1 name hsr1.4 type vlan id 4
+	ip -net "$ns1" link add link hsr1 name hsr1.5 type vlan id 5
+
+	ip -net "$ns2" link add link hsr2 name hsr2.2 type vlan id 2
+	ip -net "$ns2" link add link hsr2 name hsr2.3 type vlan id 3
+	ip -net "$ns2" link add link hsr2 name hsr2.4 type vlan id 4
+	ip -net "$ns2" link add link hsr2 name hsr2.5 type vlan id 5
+
+	ip -net "$ns3" link add link hsr3 name hsr3.2 type vlan id 2
+	ip -net "$ns3" link add link hsr3 name hsr3.3 type vlan id 3
+	ip -net "$ns3" link add link hsr3 name hsr3.4 type vlan id 4
+	ip -net "$ns3" link add link hsr3 name hsr3.5 type vlan id 5
+
+	ip -net "$ns1" addr add 100.64.2.1/24 dev hsr1.2
+	ip -net "$ns1" addr add 100.64.3.1/24 dev hsr1.3
+	ip -net "$ns1" addr add 100.64.4.1/24 dev hsr1.4
+	ip -net "$ns1" addr add 100.64.5.1/24 dev hsr1.5
+
+	ip -net "$ns2" addr add 100.64.2.2/24 dev hsr2.2
+	ip -net "$ns2" addr add 100.64.3.2/24 dev hsr2.3
+	ip -net "$ns2" addr add 100.64.4.2/24 dev hsr2.4
+	ip -net "$ns2" addr add 100.64.5.2/24 dev hsr2.5
+
+	ip -net "$ns3" addr add 100.64.2.3/24 dev hsr3.2
+	ip -net "$ns3" addr add 100.64.3.3/24 dev hsr3.3
+	ip -net "$ns3" addr add 100.64.4.3/24 dev hsr3.4
+	ip -net "$ns3" addr add 100.64.5.3/24 dev hsr3.5
+
+	ip -net "$ns1" link set dev hsr1.2 up
+	ip -net "$ns1" link set dev hsr1.3 up
+	ip -net "$ns1" link set dev hsr1.4 up
+	ip -net "$ns1" link set dev hsr1.5 up
+
+	ip -net "$ns2" link set dev hsr2.2 up
+	ip -net "$ns2" link set dev hsr2.3 up
+	ip -net "$ns2" link set dev hsr2.4 up
+	ip -net "$ns2" link set dev hsr2.5 up
+
+	ip -net "$ns3" link set dev hsr3.2 up
+	ip -net "$ns3" link set dev hsr3.3 up
+	ip -net "$ns3" link set dev hsr3.4 up
+	ip -net "$ns3" link set dev hsr3.5 up
+
+}
+
+hsr_vlan_ping() {
+	do_ping "$ns1" 100.64.2.2
+	do_ping "$ns1" 100.64.3.2
+	do_ping "$ns1" 100.64.4.2
+	do_ping "$ns1" 100.64.5.2
+
+	do_ping "$ns1" 100.64.2.3
+	do_ping "$ns1" 100.64.3.3
+	do_ping "$ns1" 100.64.4.3
+	do_ping "$ns1" 100.64.5.3
+
+	do_ping "$ns2" 100.64.2.1
+	do_ping "$ns2" 100.64.3.1
+	do_ping "$ns2" 100.64.4.1
+	do_ping "$ns2" 100.64.5.1
+
+	do_ping "$ns2" 100.64.2.3
+	do_ping "$ns2" 100.64.3.3
+	do_ping "$ns2" 100.64.4.3
+	do_ping "$ns2" 100.64.5.3
+
+	do_ping "$ns3" 100.64.2.1
+	do_ping "$ns3" 100.64.3.1
+	do_ping "$ns3" 100.64.4.1
+	do_ping "$ns3" 100.64.5.1
+
+	do_ping "$ns3" 100.64.2.2
+	do_ping "$ns3" 100.64.3.2
+	do_ping "$ns3" 100.64.4.2
+	do_ping "$ns3" 100.64.5.2
+}
+
+run_vlan_tests() {
+	vlan_challenged_hsr1=$(ip net exec "$ns1" ethtool -k hsr1 | grep "vlan-challenged" | awk '{print $2}')
+	vlan_challenged_hsr2=$(ip net exec "$ns2" ethtool -k hsr2 | grep "vlan-challenged" | awk '{print $2}')
+	vlan_challenged_hsr3=$(ip net exec "$ns3" ethtool -k hsr3 | grep "vlan-challenged" | awk '{print $2}')
+
+	if [[ "$vlan_challenged_hsr1" = "off" || "$vlan_challenged_hsr2" = "off" || "$vlan_challenged_hsr3" = "off" ]]; then
+		echo "INFO: Running VLAN tests"
+		setup_vlan_interfaces
+		hsr_vlan_ping
+	else
+		echo "INFO: Not Running VLAN tests as the device does not support VLAN"
+	fi
+}
+
+check_prerequisites
+setup_ns ns1 ns2 ns3
+
+trap cleanup_all_ns EXIT
+
+setup_hsr_interfaces 0
+do_complete_ping_test
+
+run_vlan_tests
+
+setup_ns ns1 ns2 ns3
+
+setup_hsr_interfaces 1
+do_complete_ping_test
+
+run_vlan_tests
+
+exit $ret
diff --git a/tools/testing/selftests/net/hsr/hsr_redbox.sh b/tools/testing/selftests/net/hsr/hsr_redbox.sh
new file mode 100755
index 000000000000..998103502d5d
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/hsr_redbox.sh
@@ -0,0 +1,136 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ipv6=false
+
+source ./hsr_common.sh
+
+do_complete_ping_test()
+{
+	echo "INFO: Initial validation ping (HSR-SAN/RedBox)."
+	# Each node has to be able to reach each one.
+	do_ping "${ns1}" 100.64.0.2
+	do_ping "${ns2}" 100.64.0.1
+	# Ping between SANs (test bridge)
+	do_ping "${ns4}" 100.64.0.51
+	do_ping "${ns5}" 100.64.0.41
+	# Ping from SANs to hsr1 (via hsr2) (and opposite)
+	do_ping "${ns3}" 100.64.0.1
+	do_ping "${ns1}" 100.64.0.3
+	do_ping "${ns1}" 100.64.0.41
+	do_ping "${ns4}" 100.64.0.1
+	do_ping "${ns1}" 100.64.0.51
+	do_ping "${ns5}" 100.64.0.1
+	stop_if_error "Initial validation failed."
+
+	# Wait for MGNT HSR frames being received and nodes being
+	# merged.
+	sleep 5
+
+	echo "INFO: Longer ping test (HSR-SAN/RedBox)."
+	# Ping from SAN to hsr1 (via hsr2)
+	do_ping_long "${ns3}" 100.64.0.1
+	# Ping from hsr1 (via hsr2) to SANs (and opposite)
+	do_ping_long "${ns1}" 100.64.0.3
+	do_ping_long "${ns1}" 100.64.0.41
+	do_ping_long "${ns4}" 100.64.0.1
+	do_ping_long "${ns1}" 100.64.0.51
+	do_ping_long "${ns5}" 100.64.0.1
+	stop_if_error "Longer ping test failed."
+
+	echo "INFO: All good."
+}
+
+setup_hsr_interfaces()
+{
+	local HSRv="$1"
+
+	echo "INFO: preparing interfaces for HSRv${HSRv} (HSR-SAN/RedBox)."
+#
+# IPv4 addresses (100.64.X.Y/24), and [X.Y] is presented on below diagram:
+#
+#
+# |NS1                     |               |NS4                |
+# |       [0.1]            |               |                   |
+# |    /-- hsr1 --\        |               |    [0.41]         |
+# | ns1eth1     ns1eth2    |               |    ns4eth1 (SAN)  |
+# |------------------------|               |-------------------|
+#      |            |                                |
+#      |            |                                |
+#      |            |                                |
+# |------------------------|   |-------------------------------|
+# | ns2eth1     ns2eth2    |   |                  ns3eth2      |
+# |    \-- hsr2 --/        |   |                 /             |
+# |      [0.2] \           |   |                /              |  |------------|
+# |             ns2eth3    |---| ns3eth1 -- ns3br1 -- ns3eth3--|--| ns5eth1    |
+# |             (interlink)|   | [0.3]      [0.11]             |  | [0.51]     |
+# |NS2 (RedBOX)            |   |NS3 (BR)                       |  | NS5 (SAN)  |
+#
+#
+	# Check if iproute2 supports adding interlink port to hsrX device
+	ip link help hsr | grep -q INTERLINK
+	[ $? -ne 0 ] && { echo "iproute2: HSR interlink interface not supported!"; exit 0; }
+
+	# Create interfaces for name spaces
+	ip link add ns1eth1 netns "${ns1}" type veth peer name ns2eth1 netns "${ns2}"
+	ip link add ns1eth2 netns "${ns1}" type veth peer name ns2eth2 netns "${ns2}"
+	ip link add ns2eth3 netns "${ns2}" type veth peer name ns3eth1 netns "${ns3}"
+	ip link add ns3eth2 netns "${ns3}" type veth peer name ns4eth1 netns "${ns4}"
+	ip link add ns3eth3 netns "${ns3}" type veth peer name ns5eth1 netns "${ns5}"
+
+	sleep 1
+
+	ip -n "${ns1}" link set ns1eth1 up
+	ip -n "${ns1}" link set ns1eth2 up
+
+	ip -n "${ns2}" link set ns2eth1 up
+	ip -n "${ns2}" link set ns2eth2 up
+	ip -n "${ns2}" link set ns2eth3 up
+
+	ip -n "${ns3}" link add name ns3br1 type bridge
+	ip -n "${ns3}" link set ns3br1 up
+	ip -n "${ns3}" link set ns3eth1 master ns3br1 up
+	ip -n "${ns3}" link set ns3eth2 master ns3br1 up
+	ip -n "${ns3}" link set ns3eth3 master ns3br1 up
+
+	ip -n "${ns4}" link set ns4eth1 up
+	ip -n "${ns5}" link set ns5eth1 up
+
+	ip -net "$ns1" link set address 00:11:22:00:01:01 dev ns1eth1
+	ip -net "$ns1" link set address 00:11:22:00:01:02 dev ns1eth2
+
+	ip -net "$ns2" link set address 00:11:22:00:02:01 dev ns2eth1
+	ip -net "$ns2" link set address 00:11:22:00:02:02 dev ns2eth2
+	ip -net "$ns2" link set address 00:11:22:00:02:03 dev ns2eth3
+
+	ip -net "$ns3" link set address 00:11:22:00:03:11 dev ns3eth1
+	ip -net "$ns3" link set address 00:11:22:00:03:11 dev ns3eth2
+	ip -net "$ns3" link set address 00:11:22:00:03:11 dev ns3eth3
+	ip -net "$ns3" link set address 00:11:22:00:03:11 dev ns3br1
+
+	ip -net "$ns4" link set address 00:11:22:00:04:01 dev ns4eth1
+	ip -net "$ns5" link set address 00:11:22:00:05:01 dev ns5eth1
+
+	ip -net "${ns1}" link add name hsr1 type hsr slave1 ns1eth1 slave2 ns1eth2 supervision 45 version ${HSRv} proto 0
+	ip -net "${ns2}" link add name hsr2 type hsr slave1 ns2eth1 slave2 ns2eth2 interlink ns2eth3 supervision 45 version ${HSRv} proto 0
+
+	ip -n "${ns1}" addr add 100.64.0.1/24 dev hsr1
+	ip -n "${ns2}" addr add 100.64.0.2/24 dev hsr2
+	ip -n "${ns3}" addr add 100.64.0.11/24 dev ns3br1
+	ip -n "${ns3}" addr add 100.64.0.3/24 dev ns3eth1
+	ip -n "${ns4}" addr add 100.64.0.41/24 dev ns4eth1
+	ip -n "${ns5}" addr add 100.64.0.51/24 dev ns5eth1
+
+	ip -n "${ns1}" link set hsr1 up
+	ip -n "${ns2}" link set hsr2 up
+}
+
+check_prerequisites
+setup_ns ns1 ns2 ns3 ns4 ns5
+
+trap cleanup_all_ns EXIT
+
+setup_hsr_interfaces 1
+do_complete_ping_test
+
+exit $ret
diff --git a/tools/testing/selftests/net/hsr/settings b/tools/testing/selftests/net/hsr/settings
new file mode 100644
index 000000000000..0fbc037f2aa8
--- /dev/null
+++ b/tools/testing/selftests/net/hsr/settings
@@ -0,0 +1 @@
+timeout=50
diff --git a/tools/testing/selftests/net/hwtstamp_config.c b/tools/testing/selftests/net/hwtstamp_config.c
new file mode 100644
index 000000000000..170728c96c46
--- /dev/null
+++ b/tools/testing/selftests/net/hwtstamp_config.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test program for SIOC{G,S}HWTSTAMP
+ * Copyright 2013 Solarflare Communications
+ * Author: Ben Hutchings
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+
+#include <linux/if.h>
+#include <linux/net_tstamp.h>
+#include <linux/sockios.h>
+
+#include "kselftest.h"
+
+static int
+lookup_value(const char **names, int size, const char *name)
+{
+	int value;
+
+	for (value = 0; value < size; value++)
+		if (names[value] && strcasecmp(names[value], name) == 0)
+			return value;
+
+	return -1;
+}
+
+static const char *
+lookup_name(const char **names, int size, int value)
+{
+	return (value >= 0 && value < size) ? names[value] : NULL;
+}
+
+static void list_names(FILE *f, const char **names, int size)
+{
+	int value;
+
+	for (value = 0; value < size; value++)
+		if (names[value])
+			fprintf(f, "    %s\n", names[value]);
+}
+
+static const char *tx_types[] = {
+#define TX_TYPE(name) [HWTSTAMP_TX_ ## name] = #name
+	TX_TYPE(OFF),
+	TX_TYPE(ON),
+	TX_TYPE(ONESTEP_SYNC)
+#undef TX_TYPE
+};
+#define N_TX_TYPES ((int)(ARRAY_SIZE(tx_types)))
+
+static const char *rx_filters[] = {
+#define RX_FILTER(name) [HWTSTAMP_FILTER_ ## name] = #name
+	RX_FILTER(NONE),
+	RX_FILTER(ALL),
+	RX_FILTER(SOME),
+	RX_FILTER(PTP_V1_L4_EVENT),
+	RX_FILTER(PTP_V1_L4_SYNC),
+	RX_FILTER(PTP_V1_L4_DELAY_REQ),
+	RX_FILTER(PTP_V2_L4_EVENT),
+	RX_FILTER(PTP_V2_L4_SYNC),
+	RX_FILTER(PTP_V2_L4_DELAY_REQ),
+	RX_FILTER(PTP_V2_L2_EVENT),
+	RX_FILTER(PTP_V2_L2_SYNC),
+	RX_FILTER(PTP_V2_L2_DELAY_REQ),
+	RX_FILTER(PTP_V2_EVENT),
+	RX_FILTER(PTP_V2_SYNC),
+	RX_FILTER(PTP_V2_DELAY_REQ),
+#undef RX_FILTER
+};
+#define N_RX_FILTERS ((int)(ARRAY_SIZE(rx_filters)))
+
+static void usage(void)
+{
+	fputs("Usage: hwtstamp_config if_name [tx_type rx_filter]\n"
+	      "tx_type is any of (case-insensitive):\n",
+	      stderr);
+	list_names(stderr, tx_types, N_TX_TYPES);
+	fputs("rx_filter is any of (case-insensitive):\n", stderr);
+	list_names(stderr, rx_filters, N_RX_FILTERS);
+}
+
+int main(int argc, char **argv)
+{
+	struct ifreq ifr;
+	struct hwtstamp_config config;
+	const char *name;
+	int sock;
+
+	if ((argc != 2 && argc != 4) || (strlen(argv[1]) >= IFNAMSIZ)) {
+		usage();
+		return 2;
+	}
+
+	if (argc == 4) {
+		config.flags = 0;
+		config.tx_type = lookup_value(tx_types, N_TX_TYPES, argv[2]);
+		config.rx_filter = lookup_value(rx_filters, N_RX_FILTERS, argv[3]);
+		if (config.tx_type < 0 || config.rx_filter < 0) {
+			usage();
+			return 2;
+		}
+	}
+
+	sock = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock < 0) {
+		perror("socket");
+		return 1;
+	}
+
+	strcpy(ifr.ifr_name, argv[1]);
+	ifr.ifr_data = (caddr_t)&config;
+
+	if (ioctl(sock, (argc == 2) ? SIOCGHWTSTAMP : SIOCSHWTSTAMP, &ifr)) {
+		perror("ioctl");
+		return 1;
+	}
+
+	printf("flags = %#x\n", config.flags);
+	name = lookup_name(tx_types, N_TX_TYPES, config.tx_type);
+	if (name)
+		printf("tx_type = %s\n", name);
+	else
+		printf("tx_type = %d\n", config.tx_type);
+	name = lookup_name(rx_filters, N_RX_FILTERS, config.rx_filter);
+	if (name)
+		printf("rx_filter = %s\n", name);
+	else
+		printf("rx_filter = %d\n", config.rx_filter);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/icmp.sh b/tools/testing/selftests/net/icmp.sh
new file mode 100755
index 000000000000..824cb0e35eff
--- /dev/null
+++ b/tools/testing/selftests/net/icmp.sh
@@ -0,0 +1,72 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test for checking ICMP response with dummy address instead of 0.0.0.0.
+# Sets up two namespaces like:
+# +----------------------+                          +--------------------+
+# | ns1                  |    v4-via-v6 routes:     | ns2                |
+# |                      |                  '       |                    |
+# |             +--------+   -> 172.16.1.0/24 ->    +--------+           |
+# |             | veth0  +--------------------------+  veth0 |           |
+# |             +--------+   <- 172.16.0.0/24 <-    +--------+           |
+# |           172.16.0.1 |                          | 2001:db8:1::2/64   |
+# |     2001:db8:1::2/64 |                          |                    |
+# +----------------------+                          +--------------------+
+#
+# And then tries to ping 172.16.1.1 from ns1. This results in a "net
+# unreachable" message being sent from ns2, but there is no IPv4 address set in
+# that address space, so the kernel should substitute the dummy address
+# 192.0.0.8 defined in RFC7600.
+
+source lib.sh
+
+H1_IP=172.16.0.1/32
+H1_IP6=2001:db8:1::1
+RT1=172.16.1.0/24
+PINGADDR=172.16.1.1
+RT2=172.16.0.0/24
+H2_IP6=2001:db8:1::2
+
+TMPFILE=$(mktemp)
+
+cleanup()
+{
+    rm -f "$TMPFILE"
+    cleanup_ns $NS1 $NS2
+}
+
+trap cleanup EXIT
+
+# Namespaces
+setup_ns NS1 NS2
+
+# Connectivity
+ip -netns $NS1 link add veth0 type veth peer name veth0 netns $NS2
+ip -netns $NS1 link set dev veth0 up
+ip -netns $NS2 link set dev veth0 up
+ip -netns $NS1 addr add $H1_IP dev veth0
+ip -netns $NS1 addr add $H1_IP6/64 dev veth0 nodad
+ip -netns $NS2 addr add $H2_IP6/64 dev veth0 nodad
+ip -netns $NS1 route add $RT1 via inet6 $H2_IP6
+ip -netns $NS2 route add $RT2 via inet6 $H1_IP6
+
+# Make sure ns2 will respond with ICMP unreachable
+ip netns exec $NS2 sysctl -qw net.ipv4.icmp_ratelimit=0 net.ipv4.ip_forward=1
+
+# Run the test - a ping runs in the background, and we capture ICMP responses
+# with tcpdump; -c 1 means it should exit on the first ping, but add a timeout
+# in case something goes wrong
+ip netns exec $NS1 ping -w 3 -i 0.5 $PINGADDR >/dev/null &
+ip netns exec $NS1 timeout 10 tcpdump -tpni veth0 -c 1 'icmp and icmp[icmptype] != icmp-echo' > $TMPFILE 2>/dev/null
+
+# Parse response and check for dummy address
+# tcpdump output looks like:
+# IP 192.0.0.8 > 172.16.0.1: ICMP net 172.16.1.1 unreachable, length 92
+RESP_IP=$(awk '{print $2}' < $TMPFILE)
+if [[ "$RESP_IP" != "192.0.0.8" ]]; then
+    echo "FAIL - got ICMP response from $RESP_IP, should be 192.0.0.8"
+    exit 1
+else
+    echo "OK"
+    exit 0
+fi
diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh
new file mode 100755
index 000000000000..b13c89a99ecb
--- /dev/null
+++ b/tools/testing/selftests/net/icmp_redirect.sh
@@ -0,0 +1,535 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# redirect test
+#
+#                     .253 +----+
+#                     +----| r1 |
+#                     |    +----+
+# +----+              |       |.1
+# | h1 |--------------+       |   10.1.1.0/30 2001:db8:1::0/126
+# +----+ .1           |       |.2
+#         172.16.1/24 |    +----+                   +----+
+#    2001:db8:16:1/64 +----| r2 |-------------------| h2 |
+#                     .254 +----+ .254           .2 +----+
+#                                    172.16.2/24
+#                                  2001:db8:16:2/64
+#
+# Route from h1 to h2 goes through r1, eth1 - connection between r1 and r2.
+# Route on r1 changed to go to r2 via eth0. This causes a redirect to be sent
+# from r1 to h1 telling h1 to use r2 when talking to h2.
+
+source lib.sh
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+H1_N1_IP=172.16.1.1
+R1_N1_IP=172.16.1.253
+R2_N1_IP=172.16.1.254
+
+H1_N1_IP6=2001:db8:16:1::1
+R1_N1_IP6=2001:db8:16:1::253
+R2_N1_IP6=2001:db8:16:1::254
+
+R1_R2_N1_IP=10.1.1.1
+R2_R1_N1_IP=10.1.1.2
+
+R1_R2_N1_IP6=2001:db8:1::1
+R2_R1_N1_IP6=2001:db8:1::2
+
+H2_N2=172.16.2.0/24
+H2_N2_6=2001:db8:16:2::/64
+H2_N2_IP=172.16.2.2
+R2_N2_IP=172.16.2.254
+H2_N2_IP6=2001:db8:16:2::2
+R2_N2_IP6=2001:db8:16:2::254
+
+VRF=red
+VRF_TABLE=1111
+
+################################################################################
+# helpers
+
+log_section()
+{
+	echo
+	echo "###########################################################################"
+	echo "$*"
+	echo "###########################################################################"
+	echo
+}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+	local xfail=$4
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	elif [ ${rc} -eq ${xfail} ]; then
+		printf "TEST: %-60s  [XFAIL]\n" "${msg}"
+		nxfail=$((nxfail+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+log_debug()
+{
+	if [ "$VERBOSE" = "1" ]; then
+		echo "$*"
+	fi
+}
+
+run_cmd()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+	fi
+
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "$out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+get_linklocal()
+{
+	local ns=$1
+	local dev=$2
+	local addr
+
+	addr=$(ip -netns $ns -6 -br addr show dev ${dev} | \
+	awk '{
+		for (i = 3; i <= NF; ++i) {
+			if ($i ~ /^fe80/)
+				print $i
+		}
+	}'
+	)
+	addr=${addr/\/*}
+
+	[ -z "$addr" ] && return 1
+
+	echo $addr
+
+	return 0
+}
+
+################################################################################
+# setup and teardown
+
+cleanup()
+{
+	cleanup_ns $h1 $h2 $r1 $r2
+}
+
+create_vrf()
+{
+	local ns=$1
+
+	ip -netns ${ns} link add ${VRF} type vrf table ${VRF_TABLE}
+	ip -netns ${ns} link set ${VRF} up
+	ip -netns ${ns} route add vrf ${VRF} unreachable default metric 8192
+	ip -netns ${ns} -6 route add vrf ${VRF} unreachable default metric 8192
+
+	ip -netns ${ns} addr add 127.0.0.1/8 dev ${VRF}
+	ip -netns ${ns} -6 addr add ::1 dev ${VRF} nodad
+
+	ip -netns ${ns} ru del pref 0
+	ip -netns ${ns} ru add pref 32765 from all lookup local
+	ip -netns ${ns} -6 ru del pref 0
+	ip -netns ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+setup()
+{
+	local ns
+
+	#
+	# create nodes as namespaces
+	setup_ns h1 h2 r1 r2
+	for ns in $h1 $h2 $r1 $r2; do
+		if echo $ns | grep -q h[12]-; then
+			ip netns exec $ns sysctl -q -w net.ipv4.conf.all.accept_redirects=1
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.accept_redirects=1
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+		else
+			ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+			ip netns exec $ns sysctl -q -w net.ipv4.conf.all.send_redirects=1
+
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+			ip netns exec $ns sysctl -q -w net.ipv6.route.mtu_expires=10
+		fi
+	done
+
+	#
+	# create interconnects
+	#
+	ip -netns $h1 li add eth0 type veth peer name r1h1
+	ip -netns $h1 li set r1h1 netns $r1 name eth0 up
+
+	ip -netns $h1 li add eth1 type veth peer name r2h1
+	ip -netns $h1 li set r2h1 netns $r2 name eth0 up
+
+	ip -netns $h2 li add eth0 type veth peer name r2h2
+	ip -netns $h2 li set eth0 up
+	ip -netns $h2 li set r2h2 netns $r2 name eth2 up
+
+	ip -netns $r1 li add eth1 type veth peer name r2r1
+	ip -netns $r1 li set eth1 up
+	ip -netns $r1 li set r2r1 netns $r2 name eth1 up
+
+	#
+	# h1
+	#
+	if [ "${WITH_VRF}" = "yes" ]; then
+		create_vrf "$h1"
+		H1_VRF_ARG="vrf ${VRF}"
+		H1_PING_ARG="-I ${VRF}"
+	else
+		H1_VRF_ARG=
+		H1_PING_ARG=
+	fi
+	ip -netns $h1 li add br0 type bridge
+	if [ "${WITH_VRF}" = "yes" ]; then
+		ip -netns $h1 li set br0 vrf ${VRF} up
+	else
+		ip -netns $h1 li set br0 up
+	fi
+	ip -netns $h1 addr add dev br0 ${H1_N1_IP}/24
+	ip -netns $h1 -6 addr add dev br0 ${H1_N1_IP6}/64 nodad
+	ip -netns $h1 li set eth0 master br0 up
+	ip -netns $h1 li set eth1 master br0 up
+
+	#
+	# h2
+	#
+	ip -netns $h2 addr add dev eth0 ${H2_N2_IP}/24
+	ip -netns $h2 ro add default via ${R2_N2_IP} dev eth0
+	ip -netns $h2 -6 addr add dev eth0 ${H2_N2_IP6}/64 nodad
+	ip -netns $h2 -6 ro add default via ${R2_N2_IP6} dev eth0
+
+	#
+	# r1
+	#
+	ip -netns $r1 addr add dev eth0 ${R1_N1_IP}/24
+	ip -netns $r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+	ip -netns $r1 addr add dev eth1 ${R1_R2_N1_IP}/30
+	ip -netns $r1 -6 addr add dev eth1 ${R1_R2_N1_IP6}/126 nodad
+
+	#
+	# r2
+	#
+	ip -netns $r2 addr add dev eth0 ${R2_N1_IP}/24
+	ip -netns $r2 -6 addr add dev eth0 ${R2_N1_IP6}/64 nodad
+	ip -netns $r2 addr add dev eth1 ${R2_R1_N1_IP}/30
+	ip -netns $r2 -6 addr add dev eth1 ${R2_R1_N1_IP6}/126 nodad
+	ip -netns $r2 addr add dev eth2 ${R2_N2_IP}/24
+	ip -netns $r2 -6 addr add dev eth2 ${R2_N2_IP6}/64 nodad
+
+	sleep 2
+
+	R1_LLADDR=$(get_linklocal $r1 eth0)
+	if [ $? -ne 0 ]; then
+		echo "Error: Failed to get link-local address of r1's eth0"
+		exit 1
+	fi
+	log_debug "initial gateway is R1's lladdr = ${R1_LLADDR}"
+
+	R2_LLADDR=$(get_linklocal $r2 eth0)
+	if [ $? -ne 0 ]; then
+		echo "Error: Failed to get link-local address of r2's eth0"
+		exit 1
+	fi
+	log_debug "initial gateway is R2's lladdr = ${R2_LLADDR}"
+}
+
+change_h2_mtu()
+{
+	local mtu=$1
+
+	run_cmd ip -netns $h2 li set eth0 mtu ${mtu}
+	run_cmd ip -netns $r2 li set eth2 mtu ${mtu}
+}
+
+check_exception()
+{
+	local mtu="$1"
+	local with_redirect="$2"
+	local desc="$3"
+
+	# From 172.16.1.101: icmp_seq=1 Redirect Host(New nexthop: 172.16.1.102)
+	if [ "$VERBOSE" = "1" ]; then
+		echo "Commands to check for exception:"
+		run_cmd ip -netns $h1 ro get ${H1_VRF_ARG} ${H2_N2_IP}
+		run_cmd ip -netns $h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6}
+	fi
+
+	if [ -n "${mtu}" ]; then
+		mtu=" mtu ${mtu}"
+	fi
+	if [ "$with_redirect" = "yes" ]; then
+		ip -netns $h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+		grep -q "cache <redirected> expires [0-9]*sec${mtu}"
+	elif [ -n "${mtu}" ]; then
+		ip -netns $h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+		grep -q "cache expires [0-9]*sec${mtu}"
+	else
+		# want to verify that neither mtu nor redirected appears in
+		# the route get output. The -v will wipe out the cache line
+		# if either are set so the last grep -q will not find a match
+		ip -netns $h1 ro get ${H1_VRF_ARG} ${H2_N2_IP} | \
+		grep -E -v 'mtu|redirected' | grep -q "cache"
+	fi
+	log_test $? 0 "IPv4: ${desc}" 0
+
+	# No PMTU info for test "redirect" and "mtu exception plus redirect"
+	if [ "$with_redirect" = "yes" ] && [ "$desc" != "redirect exception plus mtu" ]; then
+		ip -netns $h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+		grep -v "mtu" | grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0"
+	elif [ -n "${mtu}" ]; then
+		ip -netns $h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+		grep -q "${mtu}"
+	else
+		# IPv6 is a bit harder. First strip out the match if it
+		# contains an mtu exception and then look for the first
+		# gateway - R1's lladdr
+		ip -netns $h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \
+		grep -v "mtu" | grep -q "${R1_LLADDR}"
+	fi
+	log_test $? 0 "IPv6: ${desc}" 1
+}
+
+run_ping()
+{
+	local sz=$1
+
+	run_cmd ip netns exec $h1 ping -q -M want -i 0.5 -c 10 -w 2 -s ${sz} ${H1_PING_ARG} ${H2_N2_IP}
+	run_cmd ip netns exec $h1 ${ping6} -q -M want -i 0.5 -c 10 -w 2 -s ${sz} ${H1_PING_ARG} ${H2_N2_IP6}
+}
+
+replace_route_new()
+{
+	# r1 to h2 via r2 and eth0
+	run_cmd ip -netns $r1 nexthop replace id 1 via ${R2_N1_IP} dev eth0
+	run_cmd ip -netns $r1 nexthop replace id 2 via ${R2_LLADDR} dev eth0
+}
+
+reset_route_new()
+{
+	run_cmd ip -netns $r1 nexthop flush
+	run_cmd ip -netns $h1 nexthop flush
+
+	initial_route_new
+}
+
+initial_route_new()
+{
+	# r1 to h2 via r2 and eth1
+	run_cmd ip -netns $r1 nexthop add id 1 via ${R2_R1_N1_IP} dev eth1
+	run_cmd ip -netns $r1 ro add ${H2_N2} nhid 1
+
+	run_cmd ip -netns $r1 nexthop add id 2 via ${R2_R1_N1_IP6} dev eth1
+	run_cmd ip -netns $r1 -6 ro add ${H2_N2_6} nhid 2
+
+	# h1 to h2 via r1
+	run_cmd ip -netns $h1 nexthop add id 1 via ${R1_N1_IP} dev br0
+	run_cmd ip -netns $h1 ro add ${H1_VRF_ARG} ${H2_N2} nhid 1
+
+	run_cmd ip -netns $h1 nexthop add id 2 via ${R1_LLADDR} dev br0
+	run_cmd ip -netns $h1 -6 ro add ${H1_VRF_ARG} ${H2_N2_6} nhid 2
+}
+
+replace_route_legacy()
+{
+	# r1 to h2 via r2 and eth0
+	run_cmd ip -netns $r1    ro replace ${H2_N2}   via ${R2_N1_IP}  dev eth0
+	run_cmd ip -netns $r1 -6 ro replace ${H2_N2_6} via ${R2_LLADDR} dev eth0
+}
+
+reset_route_legacy()
+{
+	run_cmd ip -netns $r1    ro del ${H2_N2}
+	run_cmd ip -netns $r1 -6 ro del ${H2_N2_6}
+
+	run_cmd ip -netns $h1    ro del ${H1_VRF_ARG} ${H2_N2}
+	run_cmd ip -netns $h1 -6 ro del ${H1_VRF_ARG} ${H2_N2_6}
+
+	initial_route_legacy
+}
+
+initial_route_legacy()
+{
+	# r1 to h2 via r2 and eth1
+	run_cmd ip -netns $r1    ro add ${H2_N2}   via ${R2_R1_N1_IP}  dev eth1
+	run_cmd ip -netns $r1 -6 ro add ${H2_N2_6} via ${R2_R1_N1_IP6} dev eth1
+
+	# h1 to h2 via r1
+	# - IPv6 redirect only works if gateway is the LLA
+	run_cmd ip -netns $h1    ro add ${H1_VRF_ARG} ${H2_N2} via ${R1_N1_IP} dev br0
+	run_cmd ip -netns $h1 -6 ro add ${H1_VRF_ARG} ${H2_N2_6} via ${R1_LLADDR} dev br0
+}
+
+check_connectivity()
+{
+	local rc
+
+	run_cmd ip netns exec $h1 ping -c1 -w1 ${H1_PING_ARG} ${H2_N2_IP}
+	rc=$?
+	run_cmd ip netns exec $h1 ${ping6} -c1 -w1 ${H1_PING_ARG} ${H2_N2_IP6}
+	[ $? -ne 0 ] && rc=$?
+
+	return $rc
+}
+
+do_test()
+{
+	local ttype="$1"
+
+	eval initial_route_${ttype}
+
+	# verify connectivity
+	check_connectivity
+	if [ $? -ne 0 ]; then
+		echo "Error: Basic connectivity is broken"
+		ret=1
+		return
+	fi
+
+	# redirect exception followed by mtu
+	eval replace_route_${ttype}
+	run_ping 64
+	check_exception "" "yes" "redirect exception"
+
+	check_connectivity
+	if [ $? -ne 0 ]; then
+		echo "Error: Basic connectivity is broken after redirect"
+		ret=1
+		return
+	fi
+
+	change_h2_mtu 1300
+	run_ping 1350
+	check_exception "1300" "yes" "redirect exception plus mtu"
+
+	# remove exceptions and restore routing
+	change_h2_mtu 1500
+	eval reset_route_${ttype}
+
+	check_connectivity
+	if [ $? -ne 0 ]; then
+		echo "Error: Basic connectivity is broken after reset"
+		ret=1
+		return
+	fi
+	check_exception "" "no" "routing reset"
+
+	# MTU exception followed by redirect
+	change_h2_mtu 1300
+	run_ping 1350
+	check_exception "1300" "no" "mtu exception"
+
+	eval replace_route_${ttype}
+	run_ping 64
+	check_exception "1300" "yes" "mtu exception plus redirect"
+
+	check_connectivity
+	if [ $? -ne 0 ]; then
+		echo "Error: Basic connectivity is broken after redirect"
+		ret=1
+		return
+	fi
+}
+
+################################################################################
+# usage
+
+usage()
+{
+        cat <<EOF
+usage: ${0##*/} OPTS
+
+	-p          Pause on fail
+	-v          verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+# Some systems don't have a ping6 binary anymore
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+ret=0
+nsuccess=0
+nfail=0
+nxfail=0
+
+while getopts :pv o
+do
+	case $o in
+                p) PAUSE_ON_FAIL=yes;;
+                v) VERBOSE=$(($VERBOSE + 1));;
+                *) usage; exit 1;;
+	esac
+done
+
+trap cleanup EXIT
+
+cleanup
+WITH_VRF=no
+setup
+
+log_section "Legacy routing"
+do_test "legacy"
+
+cleanup
+log_section "Legacy routing with VRF"
+WITH_VRF=yes
+setup
+do_test "legacy"
+
+cleanup
+log_section "Routing with nexthop objects"
+ip nexthop ls >/dev/null 2>&1
+if [ $? -eq 0 ]; then
+	WITH_VRF=no
+	setup
+	do_test "new"
+
+	cleanup
+	log_section "Routing with nexthop objects and VRF"
+	WITH_VRF=yes
+	setup
+	do_test "new"
+else
+	echo "Nexthop objects not supported; skipping tests"
+fi
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
+printf "Tests xfailed: %3d\n"  ${nxfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/in_netns.sh b/tools/testing/selftests/net/in_netns.sh
new file mode 100755
index 000000000000..88795b510b32
--- /dev/null
+++ b/tools/testing/selftests/net/in_netns.sh
@@ -0,0 +1,23 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Execute a subprocess in a network namespace
+
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+	ip netns add "${NETNS}"
+	ip -netns "${NETNS}" link set lo up
+}
+
+cleanup() {
+	ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+ip netns exec "${NETNS}" "$@"
+exit "$?"
diff --git a/tools/testing/selftests/net/io_uring_zerocopy_tx.c b/tools/testing/selftests/net/io_uring_zerocopy_tx.c
new file mode 100644
index 000000000000..7bfeeb133705
--- /dev/null
+++ b/tools/testing/selftests/net/io_uring_zerocopy_tx.c
@@ -0,0 +1,320 @@
+/* SPDX-License-Identifier: MIT */
+/* based on linux-kernel/tools/testing/selftests/net/msg_zerocopy.c */
+#include <assert.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <arpa/inet.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/io_uring.h>
+#include <linux/ipv6.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+
+#include <io_uring/mini_liburing.h>
+
+#define NOTIF_TAG 0xfffffffULL
+#define NONZC_TAG 0
+#define ZC_TAG 1
+
+enum {
+	MODE_NONZC	= 0,
+	MODE_ZC		= 1,
+	MODE_ZC_FIXED	= 2,
+	MODE_MIXED	= 3,
+};
+
+static bool cfg_cork		= false;
+static int  cfg_mode		= MODE_ZC_FIXED;
+static int  cfg_nr_reqs		= 8;
+static int  cfg_family		= PF_UNSPEC;
+static int  cfg_payload_len;
+static int  cfg_port		= 8000;
+static int  cfg_runtime_ms	= 4200;
+
+static socklen_t cfg_alen;
+static struct sockaddr_storage cfg_dst_addr;
+
+static char payload[IP_MAXPACKET] __attribute__((aligned(4096)));
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static void do_setsockopt(int fd, int level, int optname, int val)
+{
+	if (setsockopt(fd, level, optname, &val, sizeof(val)))
+		error(1, errno, "setsockopt %d.%d: %d", level, optname, val);
+}
+
+static int do_setup_tx(int domain, int type, int protocol)
+{
+	int fd;
+
+	fd = socket(domain, type, protocol);
+	if (fd == -1)
+		error(1, errno, "socket t");
+
+	do_setsockopt(fd, SOL_SOCKET, SO_SNDBUF, 1 << 21);
+
+	if (connect(fd, (void *) &cfg_dst_addr, cfg_alen))
+		error(1, errno, "connect");
+	return fd;
+}
+
+static void do_tx(int domain, int type, int protocol)
+{
+	struct io_uring_sqe *sqe;
+	struct io_uring_cqe *cqe;
+	unsigned long packets = 0, bytes = 0;
+	struct io_uring ring;
+	struct iovec iov;
+	uint64_t tstop;
+	int i, fd, ret;
+	int compl_cqes = 0;
+
+	fd = do_setup_tx(domain, type, protocol);
+
+	ret = io_uring_queue_init(512, &ring, 0);
+	if (ret)
+		error(1, -ret, "io_uring: queue init");
+
+	iov.iov_base = payload;
+	iov.iov_len = cfg_payload_len;
+
+	ret = io_uring_register_buffers(&ring, &iov, 1);
+	if (ret)
+		error(1, -ret, "io_uring: buffer registration");
+
+	tstop = gettimeofday_ms() + cfg_runtime_ms;
+	do {
+		if (cfg_cork)
+			do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 1);
+
+		for (i = 0; i < cfg_nr_reqs; i++) {
+			unsigned zc_flags = 0;
+			unsigned buf_idx = 0;
+			unsigned mode = cfg_mode;
+			unsigned msg_flags = MSG_WAITALL;
+
+			if (cfg_mode == MODE_MIXED)
+				mode = rand() % 3;
+
+			sqe = io_uring_get_sqe(&ring);
+
+			if (mode == MODE_NONZC) {
+				io_uring_prep_send(sqe, fd, payload,
+						   cfg_payload_len, msg_flags);
+				sqe->user_data = NONZC_TAG;
+			} else {
+				io_uring_prep_sendzc(sqe, fd, payload,
+						     cfg_payload_len,
+						     msg_flags, zc_flags);
+				if (mode == MODE_ZC_FIXED) {
+					sqe->ioprio |= IORING_RECVSEND_FIXED_BUF;
+					sqe->buf_index = buf_idx;
+				}
+				sqe->user_data = ZC_TAG;
+			}
+		}
+
+		ret = io_uring_submit(&ring);
+		if (ret != cfg_nr_reqs)
+			error(1, -ret, "submit");
+
+		if (cfg_cork)
+			do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 0);
+		for (i = 0; i < cfg_nr_reqs; i++) {
+			ret = io_uring_wait_cqe(&ring, &cqe);
+			if (ret)
+				error(1, -ret, "wait cqe");
+
+			if (cqe->user_data != NONZC_TAG &&
+			    cqe->user_data != ZC_TAG)
+				error(1, EINVAL, "invalid cqe->user_data");
+
+			if (cqe->flags & IORING_CQE_F_NOTIF) {
+				if (cqe->flags & IORING_CQE_F_MORE)
+					error(1, EINVAL, "invalid notif flags");
+				if (compl_cqes <= 0)
+					error(1, EINVAL, "notification mismatch");
+				compl_cqes--;
+				i--;
+				io_uring_cqe_seen(&ring);
+				continue;
+			}
+			if (cqe->flags & IORING_CQE_F_MORE) {
+				if (cqe->user_data != ZC_TAG)
+					error(1, -cqe->res, "unexpected F_MORE");
+				compl_cqes++;
+			}
+			if (cqe->res >= 0) {
+				packets++;
+				bytes += cqe->res;
+			} else if (cqe->res != -EAGAIN) {
+				error(1, -cqe->res, "send failed");
+			}
+			io_uring_cqe_seen(&ring);
+		}
+	} while (gettimeofday_ms() < tstop);
+
+	while (compl_cqes) {
+		ret = io_uring_wait_cqe(&ring, &cqe);
+		if (ret)
+			error(1, -ret, "wait cqe");
+		if (cqe->flags & IORING_CQE_F_MORE)
+			error(1, EINVAL, "invalid notif flags");
+		if (!(cqe->flags & IORING_CQE_F_NOTIF))
+			error(1, EINVAL, "missing notif flag");
+
+		io_uring_cqe_seen(&ring);
+		compl_cqes--;
+	}
+
+	fprintf(stderr, "tx=%lu (MB=%lu), tx/s=%lu (MB/s=%lu)\n",
+			packets, bytes >> 20,
+			packets / (cfg_runtime_ms / 1000),
+			(bytes >> 20) / (cfg_runtime_ms / 1000));
+
+	if (close(fd))
+		error(1, errno, "close");
+}
+
+static void do_test(int domain, int type, int protocol)
+{
+	int i;
+
+	for (i = 0; i < IP_MAXPACKET; i++)
+		payload[i] = 'a' + (i % 26);
+	do_tx(domain, type, protocol);
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s (-4|-6) (udp|tcp) -D<dst_ip> [-s<payload size>] "
+		    "[-t<time s>] [-n<batch>] [-p<port>] [-m<mode>]", filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	const int max_payload_len = sizeof(payload) -
+				    sizeof(struct ipv6hdr) -
+				    sizeof(struct tcphdr) -
+				    40 /* max tcp options */;
+	struct sockaddr_in6 *addr6 = (void *) &cfg_dst_addr;
+	struct sockaddr_in *addr4 = (void *) &cfg_dst_addr;
+	char *daddr = NULL;
+	int c;
+
+	if (argc <= 1)
+		usage(argv[0]);
+	cfg_payload_len = max_payload_len;
+
+	while ((c = getopt(argc, argv, "46D:p:s:t:n:c:m:")) != -1) {
+		switch (c) {
+		case '4':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			break;
+		case '6':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET6;
+			cfg_alen = sizeof(struct sockaddr_in6);
+			break;
+		case 'D':
+			daddr = optarg;
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 's':
+			cfg_payload_len = strtoul(optarg, NULL, 0);
+			break;
+		case 't':
+			cfg_runtime_ms = 200 + strtoul(optarg, NULL, 10) * 1000;
+			break;
+		case 'n':
+			cfg_nr_reqs = strtoul(optarg, NULL, 0);
+			break;
+		case 'c':
+			cfg_cork = strtol(optarg, NULL, 0);
+			break;
+		case 'm':
+			cfg_mode = strtol(optarg, NULL, 0);
+			break;
+		}
+	}
+
+	switch (cfg_family) {
+	case PF_INET:
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (daddr &&
+		    inet_pton(AF_INET, daddr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", daddr);
+		break;
+	case PF_INET6:
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (daddr &&
+		    inet_pton(AF_INET6, daddr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", daddr);
+		break;
+	default:
+		error(1, 0, "illegal domain");
+	}
+
+	if (cfg_payload_len > max_payload_len)
+		error(1, 0, "-s: payload exceeds max (%d)", max_payload_len);
+	if (optind != argc - 1)
+		usage(argv[0]);
+}
+
+int main(int argc, char **argv)
+{
+	const char *cfg_test = argv[argc - 1];
+
+	parse_opts(argc, argv);
+
+	if (!strcmp(cfg_test, "tcp"))
+		do_test(cfg_family, SOCK_STREAM, 0);
+	else if (!strcmp(cfg_test, "udp"))
+		do_test(cfg_family, SOCK_DGRAM, 0);
+	else
+		error(1, 0, "unknown cfg_test %s", cfg_test);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/io_uring_zerocopy_tx.sh b/tools/testing/selftests/net/io_uring_zerocopy_tx.sh
new file mode 100755
index 000000000000..123439545013
--- /dev/null
+++ b/tools/testing/selftests/net/io_uring_zerocopy_tx.sh
@@ -0,0 +1,126 @@
+#!/bin/bash
+#
+# Send data between two processes across namespaces
+# Run twice: once without and once with zerocopy
+
+set -e
+
+readonly DEV="veth0"
+readonly DEV_MTU=65535
+readonly BIN_TX="./io_uring_zerocopy_tx"
+readonly BIN_RX="./msg_zerocopy"
+
+readonly RAND="$(mktemp -u XXXXXX)"
+readonly NSPREFIX="ns-${RAND}"
+readonly NS1="${NSPREFIX}1"
+readonly NS2="${NSPREFIX}2"
+
+readonly SADDR4='192.168.1.1'
+readonly DADDR4='192.168.1.2'
+readonly SADDR6='fd::1'
+readonly DADDR6='fd::2'
+
+readonly path_sysctl_mem="net.core.optmem_max"
+
+# No arguments: automated test
+if [[ "$#" -eq "0" ]]; then
+	IPs=( "4" "6" )
+
+	for IP in "${IPs[@]}"; do
+		for mode in $(seq 1 3); do
+			$0 "$IP" udp -m "$mode" -t 1 -n 32
+			$0 "$IP" tcp -m "$mode" -t 1 -n 1
+		done
+	done
+
+	echo "OK. All tests passed"
+	exit 0
+fi
+
+# Argument parsing
+if [[ "$#" -lt "2" ]]; then
+	echo "Usage: $0 [4|6] [tcp|udp|raw|raw_hdrincl|packet|packet_dgram] <args>"
+	exit 1
+fi
+
+readonly IP="$1"
+shift
+readonly TXMODE="$1"
+shift
+readonly EXTRA_ARGS="$@"
+
+# Argument parsing: configure addresses
+if [[ "${IP}" == "4" ]]; then
+	readonly SADDR="${SADDR4}"
+	readonly DADDR="${DADDR4}"
+elif [[ "${IP}" == "6" ]]; then
+	readonly SADDR="${SADDR6}"
+	readonly DADDR="${DADDR6}"
+else
+	echo "Invalid IP version ${IP}"
+	exit 1
+fi
+
+# Argument parsing: select receive mode
+#
+# This differs from send mode for
+# - packet:	use raw recv, because packet receives skb clones
+# - raw_hdrinc: use raw recv, because hdrincl is a tx-only option
+case "${TXMODE}" in
+'packet' | 'packet_dgram' | 'raw_hdrincl')
+	RXMODE='raw'
+	;;
+*)
+	RXMODE="${TXMODE}"
+	;;
+esac
+
+# Start of state changes: install cleanup handler
+
+cleanup() {
+	ip netns del "${NS2}"
+	ip netns del "${NS1}"
+}
+
+trap cleanup EXIT
+
+# Create virtual ethernet pair between network namespaces
+ip netns add "${NS1}"
+ip netns add "${NS2}"
+
+# Configure system settings
+ip netns exec "${NS1}" sysctl -w -q "${path_sysctl_mem}=1000000"
+ip netns exec "${NS2}" sysctl -w -q "${path_sysctl_mem}=1000000"
+
+ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \
+  peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}"
+
+# Bring the devices up
+ip -netns "${NS1}" link set "${DEV}" up
+ip -netns "${NS2}" link set "${DEV}" up
+
+# Set fixed MAC addresses on the devices
+ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
+ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
+
+# Add fixed IP addresses to the devices
+ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
+ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
+ip -netns "${NS1}" addr add       fd::1/64 dev "${DEV}" nodad
+ip -netns "${NS2}" addr add       fd::2/64 dev "${DEV}" nodad
+
+# Optionally disable sg or csum offload to test edge cases
+# ip netns exec "${NS1}" ethtool -K "${DEV}" sg off
+
+do_test() {
+	local readonly ARGS="$1"
+
+	echo "ipv${IP} ${TXMODE} ${ARGS}"
+	ip netns exec "${NS2}" "${BIN_RX}" "-${IP}" -t 2 -C 2 -S "${SADDR}" -D "${DADDR}" -r "${RXMODE}" &
+	sleep 0.2
+	ip netns exec "${NS1}" "${BIN_TX}" "-${IP}" -t 1 -D "${DADDR}" ${ARGS} "${TXMODE}"
+	wait
+}
+
+do_test "${EXTRA_ARGS}"
+echo ok
diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh
new file mode 100755
index 000000000000..845c26dd01a9
--- /dev/null
+++ b/tools/testing/selftests/net/ioam6.sh
@@ -0,0 +1,1683 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Author: Justin Iurman <justin.iurman@uliege.be>
+#
+# This script evaluates IOAM for IPv6 by checking local IOAM configurations and
+# IOAM data inside packets. There are three categories of tests: LOCAL, OUTPUT,
+# and INPUT. The former (LOCAL) checks all IOAM related configurations locally
+# without sending packets. OUTPUT tests verify the processing of an IOAM
+# encapsulating node, while INPUT tests verify the processing of an IOAM transit
+# node. Both OUTPUT and INPUT tests send packets. Each test is documented inside
+# its own handler.
+#
+# The topology used for OUTPUT and INPUT tests is made of three nodes:
+# - Alpha (the IOAM encapsulating node)
+# - Beta  (the IOAM transit node)
+# - Gamma (the receiver) **
+#
+# An IOAM domain is configured from Alpha to Beta, but not on the reverse path.
+# Alpha adds an IOAM option (Pre-allocated Trace) inside a Hop-by-hop.
+#
+# ** Gamma is required because ioam6_parser.c uses a packet socket and we need
+#    to see IOAM data inserted by the very last node (Beta), which would happen
+#    _after_ we get a copy of the packet on Beta. Note that using an
+#    IPv6 raw socket with IPV6_RECVHOPOPTS on Beta would not be enough: we also
+#    need to access the IPv6 header to check some fields (e.g., source and
+#    destination addresses), which is not possible in that case. As a
+#    consequence, we need Gamma as a receiver to run ioam6_parser.c which uses a
+#    packet socket.
+#
+#
+#         +-----------------------+          +-----------------------+
+#         |                       |          |                       |
+#         |      Alpha netns      |          |      Gamma netns      |
+#         |                       |          |                       |
+#         | +-------------------+ |          | +-------------------+ |
+#         | |       veth0       | |          | |       veth0       | |
+#         | | 2001:db8:1::2/64  | |          | | 2001:db8:2::2/64  | |
+#         | +-------------------+ |          | +-------------------+ |
+#         |           .           |          |           .           |
+#         +-----------.-----------+          +-----------.-----------+
+#                     .                                  .
+#                     .                                  .
+#                     .                                  .
+#         +-----------.----------------------------------.-----------+
+#         |           .                                  .           |
+#         | +-------------------+              +-------------------+ |
+#         | |       veth0       |              |       veth1       | |
+#         | | 2001:db8:1::1/64  | ............ | 2001:db8:2::1/64  | |
+#         | +-------------------+              +-------------------+ |
+#         |                                                          |
+#         |                        Beta netns                        |
+#         |                                                          |
+#         +----------------------------------------------------------+
+#
+#
+#
+#         +==========================================================+
+#         |                Alpha - IOAM configuration                |
+#         +=====================+====================================+
+#         | Node ID             | 1                                  |
+#         +---------------------+------------------------------------+
+#         | Node Wide ID        | 11111111                           |
+#         +---------------------+------------------------------------+
+#         | Ingress ID          | 0xffff (default value)             |
+#         +---------------------+------------------------------------+
+#         | Ingress Wide ID     | 0xffffffff (default value)         |
+#         +---------------------+------------------------------------+
+#         | Egress ID           | 101                                |
+#         +---------------------+------------------------------------+
+#         | Egress Wide ID      | 101101                             |
+#         +---------------------+------------------------------------+
+#         | Namespace Data      | 0xdeadbeef                         |
+#         +---------------------+------------------------------------+
+#         | Namespace Wide Data | 0xcafec0caf00dc0de                 |
+#         +---------------------+------------------------------------+
+#         | Schema ID           | 777                                |
+#         +---------------------+------------------------------------+
+#         | Schema Data         | something that will be 4n-aligned  |
+#         +---------------------+------------------------------------+
+#
+#
+#         +==========================================================+
+#         |                 Beta - IOAM configuration                |
+#         +=====================+====================================+
+#         | Node ID             | 2                                  |
+#         +---------------------+------------------------------------+
+#         | Node Wide ID        | 22222222                           |
+#         +---------------------+------------------------------------+
+#         | Ingress ID          | 201                                |
+#         +---------------------+------------------------------------+
+#         | Ingress Wide ID     | 201201                             |
+#         +---------------------+------------------------------------+
+#         | Egress ID           | 202                                |
+#         +---------------------+------------------------------------+
+#         | Egress Wide ID      | 202202                             |
+#         +---------------------+------------------------------------+
+#         | Namespace Data      | 0xffffffff (default value)         |
+#         +---------------------+------------------------------------+
+#         | Namespace Wide Data | 0xffffffffffffffff (default value) |
+#         +---------------------+------------------------------------+
+#         | Schema ID           | 0xffffff (= None)                  |
+#         +---------------------+------------------------------------+
+#         | Schema Data         |                                    |
+#         +---------------------+------------------------------------+
+
+source lib.sh
+
+################################################################################
+#                                                                              #
+# WARNING: Be careful if you modify the block below - it MUST be kept          #
+#          synchronized with configurations inside ioam6_parser.c and always   #
+#          reflect the same.                                                   #
+#                                                                              #
+################################################################################
+
+ALPHA=(
+  1                                    # ID
+  11111111                             # Wide ID
+  0xffff                               # Ingress ID (default value)
+  0xffffffff                           # Ingress Wide ID (default value)
+  101                                  # Egress ID
+  101101                               # Egress Wide ID
+  0xdeadbeef                           # Namespace Data
+  0xcafec0caf00dc0de                   # Namespace Wide Data
+  777                                  # Schema ID
+  "something that will be 4n-aligned"  # Schema Data
+)
+
+BETA=(
+  2                                    # ID
+  22222222                             # Wide ID
+  201                                  # Ingress ID
+  201201                               # Ingress Wide ID
+  202                                  # Egress ID
+  202202                               # Egress Wide ID
+  0xffffffff                           # Namespace Data (empty value)
+  0xffffffffffffffff                   # Namespace Wide Data (empty value)
+  0xffffff                             # Schema ID (empty value)
+  ""                                   # Schema Data (empty value)
+)
+
+TESTS_LOCAL="
+  local_sysctl_ioam_id
+  local_sysctl_ioam_id_wide
+  local_sysctl_ioam_intf_id
+  local_sysctl_ioam_intf_id_wide
+  local_sysctl_ioam_intf_enabled
+  local_ioam_namespace
+  local_ioam_schema
+  local_ioam_schema_namespace
+  local_route_ns
+  local_route_tunsrc
+  local_route_tundst
+  local_route_trace_type
+  local_route_trace_size
+  local_route_trace_type_bits
+  local_route_trace_size_values
+"
+
+TESTS_OUTPUT="
+  output_undef_ns
+  output_no_room
+  output_no_room_oss
+  output_bits
+  output_sizes
+  output_full_supp_trace
+"
+
+TESTS_INPUT="
+  input_undef_ns
+  input_no_room
+  input_no_room_oss
+  input_disabled
+  input_oflag
+  input_bits
+  input_sizes
+  input_full_supp_trace
+"
+
+################################################################################
+#                                                                              #
+#                                   LIBRARY                                    #
+#                                                                              #
+################################################################################
+
+check_kernel_compatibility()
+{
+  setup_ns ioam_tmp_node &>/dev/null
+  local ret=$?
+
+  ip link add name veth0 netns $ioam_tmp_node type veth \
+    peer name veth1 netns $ioam_tmp_node &>/dev/null
+  ret=$((ret + $?))
+
+  ip -netns $ioam_tmp_node link set veth0 up &>/dev/null
+  ret=$((ret + $?))
+
+  ip -netns $ioam_tmp_node link set veth1 up &>/dev/null
+  ret=$((ret + $?))
+
+  if [ $ret != 0 ]
+  then
+    echo "SKIP: Setup failed."
+    cleanup_ns $ioam_tmp_node
+    exit $ksft_skip
+  fi
+
+  ip -netns $ioam_tmp_node route add 2001:db8:2::/64 \
+    encap ioam6 trace prealloc type 0x800000 ns 0 size 4 dev veth0 &>/dev/null
+  ret=$?
+
+  ip -netns $ioam_tmp_node -6 route 2>/dev/null | grep -q "encap ioam6"
+  ret=$((ret + $?))
+
+  if [ $ret != 0 ]
+  then
+    echo "SKIP: Cannot attach an IOAM trace to a route. Was your kernel" \
+         "compiled without CONFIG_IPV6_IOAM6_LWTUNNEL? Are you running an" \
+         "old kernel? Are you using an old version of iproute2?"
+    cleanup_ns $ioam_tmp_node
+    exit $ksft_skip
+  fi
+
+  cleanup_ns $ioam_tmp_node
+
+  lsmod 2>/dev/null | grep -q "ip6_tunnel"
+  ip6tnl_loaded=$?
+
+  if [ $ip6tnl_loaded == 0 ]
+  then
+    encap_tests=0
+  else
+    modprobe ip6_tunnel &>/dev/null
+    lsmod 2>/dev/null | grep -q "ip6_tunnel"
+    encap_tests=$?
+
+    if [ $encap_tests != 0 ]
+    then
+      ip a 2>/dev/null | grep -q "ip6tnl0"
+      encap_tests=$?
+
+      if [ $encap_tests != 0 ]
+      then
+        echo "Note: ip6_tunnel not found neither as a module nor inside the" \
+             "kernel. Any tests that require it will be skipped."
+      fi
+    fi
+  fi
+}
+
+cleanup()
+{
+  cleanup_ns $ioam_node_alpha $ioam_node_beta $ioam_node_gamma
+
+  if [ $ip6tnl_loaded != 0 ]
+  then
+    modprobe -r ip6_tunnel &>/dev/null
+  fi
+}
+
+setup()
+{
+  setup_ns ioam_node_alpha ioam_node_beta ioam_node_gamma &>/dev/null
+
+  ip link add name ioam-veth-alpha netns $ioam_node_alpha type veth \
+    peer name ioam-veth-betaL netns $ioam_node_beta &>/dev/null
+  ip link add name ioam-veth-betaR netns $ioam_node_beta type veth \
+    peer name ioam-veth-gamma netns $ioam_node_gamma &>/dev/null
+
+  ip -netns $ioam_node_alpha link set ioam-veth-alpha name veth0 &>/dev/null
+  ip -netns $ioam_node_beta link set ioam-veth-betaL name veth0 &>/dev/null
+  ip -netns $ioam_node_beta link set ioam-veth-betaR name veth1 &>/dev/null
+  ip -netns $ioam_node_gamma link set ioam-veth-gamma name veth0 &>/dev/null
+
+  ip -netns $ioam_node_alpha addr add 2001:db8:1::50/64 dev veth0 &>/dev/null
+  ip -netns $ioam_node_alpha addr add 2001:db8:1::2/64 dev veth0 &>/dev/null
+  ip -netns $ioam_node_alpha link set veth0 up &>/dev/null
+  ip -netns $ioam_node_alpha link set lo up &>/dev/null
+  ip -netns $ioam_node_alpha route add 2001:db8:2::/64 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  ip -netns $ioam_node_beta addr add 2001:db8:1::1/64 dev veth0 &>/dev/null
+  ip -netns $ioam_node_beta addr add 2001:db8:2::1/64 dev veth1 &>/dev/null
+  ip -netns $ioam_node_beta link set veth0 up &>/dev/null
+  ip -netns $ioam_node_beta link set veth1 up &>/dev/null
+  ip -netns $ioam_node_beta link set lo up &>/dev/null
+
+  ip -netns $ioam_node_gamma addr add 2001:db8:2::2/64 dev veth0 &>/dev/null
+  ip -netns $ioam_node_gamma link set veth0 up &>/dev/null
+  ip -netns $ioam_node_gamma link set lo up &>/dev/null
+  ip -netns $ioam_node_gamma route add 2001:db8:1::/64 \
+    via 2001:db8:2::1 dev veth0 &>/dev/null
+
+  # - Alpha: IOAM config -
+  ip netns exec $ioam_node_alpha \
+    sysctl -wq net.ipv6.ioam6_id=${ALPHA[0]} &>/dev/null
+  ip netns exec $ioam_node_alpha \
+    sysctl -wq net.ipv6.ioam6_id_wide=${ALPHA[1]} &>/dev/null
+  ip netns exec $ioam_node_alpha \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_id=${ALPHA[4]} &>/dev/null
+  ip netns exec $ioam_node_alpha \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${ALPHA[5]} &>/dev/null
+  ip -netns $ioam_node_alpha \
+    ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null
+  ip -netns $ioam_node_alpha \
+    ioam schema add ${ALPHA[8]} "${ALPHA[9]}" &>/dev/null
+  ip -netns $ioam_node_alpha \
+    ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null
+
+  # - Beta: IOAM config -
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.all.forwarding=1 &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.ioam6_id=${BETA[0]} &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.ioam6_id_wide=${BETA[1]} &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_id=${BETA[2]} &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_id_wide=${BETA[3]} &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth1.ioam6_id=${BETA[4]} &>/dev/null
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth1.ioam6_id_wide=${BETA[5]} &>/dev/null
+  ip -netns $ioam_node_beta ioam namespace add 123 &>/dev/null
+
+  sleep 1
+
+  ip netns exec $ioam_node_alpha ping6 -c 5 -W 1 2001:db8:2::2 &>/dev/null
+  if [ $? != 0 ]
+  then
+    echo "SKIP: Setup failed."
+    cleanup
+    exit $ksft_skip
+  fi
+}
+
+log_test_passed()
+{
+  printf " - TEST: %-57s  [ OK ]\n" "$1"
+  npassed=$((npassed+1))
+}
+
+log_test_skipped()
+{
+  printf " - TEST: %-57s  [SKIP]\n" "$1"
+  nskipped=$((nskipped+1))
+}
+
+log_test_failed()
+{
+  printf " - TEST: %-57s  [FAIL]\n" "$1"
+  nfailed=$((nfailed+1))
+}
+
+run_test()
+{
+  local name=$1
+  local desc=$2
+  local ip6_src=$3
+  local trace_type=$4
+  local trace_size=$5
+  local ioam_ns=$6
+  local type=$7
+
+  ip netns exec $ioam_node_gamma \
+    ./ioam6_parser veth0 $name $ip6_src 2001:db8:2::2 \
+                   $trace_type $trace_size $ioam_ns $type &
+  local spid=$!
+  sleep 0.1
+
+  ip netns exec $ioam_node_alpha ping6 -t 64 -c 1 -W 1 2001:db8:2::2 &>/dev/null
+  if [ $? != 0 ]
+  then
+    log_test_failed "${desc}"
+    kill -2 $spid &>/dev/null
+  else
+    wait $spid
+    [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+  fi
+}
+
+run()
+{
+  local test
+
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+  printf "| %-28s LOCAL tests %-29s |"
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+
+  echo
+  echo "Global config"
+  for test in $TESTS_LOCAL
+  do
+    $test
+  done
+
+  echo
+  echo "Inline mode"
+  for test in $TESTS_LOCAL
+  do
+    $test "inline"
+  done
+
+  echo
+  echo "Encap mode"
+  for test in $TESTS_LOCAL
+  do
+    $test "encap"
+  done
+
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+  printf "| %-28s OUTPUT tests %-28s |"
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+
+  # set OUTPUT settings
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null
+
+  echo
+  echo "Inline mode"
+  for test in $TESTS_OUTPUT
+  do
+    $test "inline"
+  done
+
+  echo
+  echo "Encap mode"
+  for test in $TESTS_OUTPUT
+  do
+    $test "encap"
+  done
+
+  echo
+  echo "Encap mode (with tunsrc)"
+  for test in $TESTS_OUTPUT
+  do
+    $test "encap" "tunsrc"
+  done
+
+  # clean OUTPUT settings
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+  printf "| %-28s INPUT tests %-29s |"
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+
+  # set INPUT settings
+  ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null
+
+  echo
+  echo "Inline mode"
+  for test in $TESTS_INPUT
+  do
+    $test "inline"
+  done
+
+  echo
+  echo "Encap mode"
+  for test in $TESTS_INPUT
+  do
+    $test "encap"
+  done
+
+  # clean INPUT settings
+  ip -netns $ioam_node_alpha \
+    ioam namespace add 123 data ${ALPHA[6]} wide ${ALPHA[7]} &>/dev/null
+  ip -netns $ioam_node_alpha \
+    ioam namespace set 123 schema ${ALPHA[8]} &>/dev/null
+
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+  printf "| %-30s Results %-31s |"
+  echo
+  printf "+"
+  printf "%0.s-" {1..72}
+  printf "+"
+  echo
+
+  echo
+  echo "- Passed:  ${npassed}"
+  echo "- Skipped: ${nskipped}"
+  echo "- Failed:  ${nfailed}"
+  echo
+}
+
+bit2type=(
+  0x800000 0x400000 0x200000 0x100000 0x080000 0x040000 0x020000 0x010000
+  0x008000 0x004000 0x002000 0x001000 0x000800 0x000400 0x000200 0x000100
+  0x000080 0x000040 0x000020 0x000010 0x000008 0x000004 0x000002 0x000001
+)
+bit2size=( 4 4 4 4 4 4 4 4 8 8 8 4 4 4 4 4 4 4 4 4 4 4 4 0 )
+
+
+################################################################################
+#                                                                              #
+#                                 LOCAL tests                                  #
+#                                                                              #
+################################################################################
+
+local_sysctl_ioam_id()
+{
+  ##############################################################################
+  # Make sure the sysctl "net.ipv6.ioam6_id" works as expected.                #
+  ##############################################################################
+  local desc="Sysctl net.ipv6.ioam6_id"
+
+  [ ! -z $1 ] && return
+
+  ip netns exec $ioam_node_alpha \
+    sysctl net.ipv6.ioam6_id 2>/dev/null | grep -wq ${ALPHA[0]}
+
+  [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_id_wide()
+{
+  ##############################################################################
+  # Make sure the sysctl "net.ipv6.ioam6_id_wide" works as expected.           #
+  ##############################################################################
+  local desc="Sysctl net.ipv6.ioam6_id_wide"
+
+  [ ! -z $1 ] && return
+
+  ip netns exec $ioam_node_alpha \
+    sysctl net.ipv6.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[1]}
+
+  [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_id()
+{
+  ##############################################################################
+  # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id" works as expected.        #
+  ##############################################################################
+  local desc="Sysctl net.ipv6.conf.XX.ioam6_id"
+
+  [ ! -z $1 ] && return
+
+  ip netns exec $ioam_node_alpha \
+    sysctl net.ipv6.conf.veth0.ioam6_id 2>/dev/null | grep -wq ${ALPHA[4]}
+
+  [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_id_wide()
+{
+  ##############################################################################
+  # Make sure the sysctl "net.ipv6.conf.XX.ioam6_id_wide" works as expected.   #
+  ##############################################################################
+  local desc="Sysctl net.ipv6.conf.XX.ioam6_id_wide"
+
+  [ ! -z $1 ] && return
+
+  ip netns exec $ioam_node_alpha \
+    sysctl net.ipv6.conf.veth0.ioam6_id_wide 2>/dev/null | grep -wq ${ALPHA[5]}
+
+  [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_sysctl_ioam_intf_enabled()
+{
+  ##############################################################################
+  # Make sure the sysctl "net.ipv6.conf.XX.ioam6_enabled" works as expected.   #
+  ##############################################################################
+  local desc="Sysctl net.ipv6.conf.XX.ioam6_enabled"
+
+  [ ! -z $1 ] && return
+
+  ip netns exec $ioam_node_beta \
+    sysctl net.ipv6.conf.veth0.ioam6_enabled 2>/dev/null | grep -wq 1
+
+  [ $? == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_namespace()
+{
+  ##############################################################################
+  # Make sure the creation of an IOAM Namespace works as expected.             #
+  ##############################################################################
+  local desc="Create an IOAM Namespace"
+
+  [ ! -z $1 ] && return
+
+  ip -netns $ioam_node_alpha \
+    ioam namespace show 2>/dev/null | grep -wq 123
+  local ret=$?
+
+  ip -netns $ioam_node_alpha \
+    ioam namespace show 2>/dev/null | grep -wq ${ALPHA[6]}
+  ret=$((ret + $?))
+
+  ip -netns $ioam_node_alpha \
+    ioam namespace show 2>/dev/null | grep -wq ${ALPHA[7]}
+  ret=$((ret + $?))
+
+  [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_schema()
+{
+  ##############################################################################
+  # Make sure the creation of an IOAM Schema works as expected.                #
+  ##############################################################################
+  local desc="Create an IOAM Schema"
+
+  [ ! -z $1 ] && return
+
+  ip -netns $ioam_node_alpha \
+    ioam schema show 2>/dev/null | grep -wq ${ALPHA[8]}
+  local ret=$?
+
+  local sc_data=$(
+    for i in `seq 0 $((${#ALPHA[9]}-1))`
+    do
+      chr=${ALPHA[9]:i:1}
+      printf "%x " "'${chr}"
+    done
+  )
+
+  ip -netns $ioam_node_alpha \
+    ioam schema show 2>/dev/null | grep -q "$sc_data"
+  ret=$((ret + $?))
+
+  [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_ioam_schema_namespace()
+{
+  ##############################################################################
+  # Make sure the binding of a Schema to a Namespace works as expected.        #
+  ##############################################################################
+  local desc="Bind an IOAM Schema to an IOAM Namespace"
+
+  [ ! -z $1 ] && return
+
+  ip -netns $ioam_node_alpha \
+    ioam namespace show 2>/dev/null | grep -wq ${ALPHA[8]}
+  local ret=$?
+
+  ip -netns $ioam_node_alpha \
+    ioam schema show 2>/dev/null | grep -wq 123
+  ret=$((ret + $?))
+
+  [ $ret == 0 ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+}
+
+local_route_ns()
+{
+  ##############################################################################
+  # Make sure the Namespace-ID is always provided, whatever the mode.          #
+  ##############################################################################
+  local desc="Mandatory Namespace-ID"
+  local mode
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret1=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret2=$?
+
+  [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+                                 || log_test_passed "${desc}"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_tunsrc()
+{
+  ##############################################################################
+  # Make sure the Tunnel Source is only (and possibly) used with encap mode.   #
+  ##############################################################################
+  local desc
+  local mode
+  local mode_tunsrc
+
+  [ -z $1 ] && return
+
+  if [ "$1" == "encap" ]
+  then
+    desc="Optional Tunnel Source"
+    mode="$1 tundst 2001:db8:2::2"
+    mode_tunsrc="$1 tunsrc 2001:db8:1::50 tundst 2001:db8:2::2"
+  else
+    desc="Unneeded Tunnel Source"
+    mode="$1"
+    mode_tunsrc="$1 tunsrc 2001:db8:1::50"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret1=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode_tunsrc trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret2=$?
+
+  if [ "$1" == "encap" ]
+  then
+    [[ $ret1 != 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+                                   || log_test_passed "${desc}"
+  else
+    [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \
+                                   || log_test_passed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_tundst()
+{
+  ##############################################################################
+  # Make sure the Tunnel Destination is only (and always) used with encap mode.#
+  ##############################################################################
+  local desc
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && desc="Mandatory Tunnel Destination" \
+                     || desc="Unneeded Tunnel Destination"
+
+  local mode="$1"
+  local mode_tundst="$1 tundst 2001:db8:2::2"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret1=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode_tundst trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret2=$?
+
+  if [ "$1" == "encap" ]
+  then
+    [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+                                   || log_test_passed "${desc}"
+  else
+    [[ $ret1 != 0 || $ret2 == 0 ]] && log_test_failed "${desc}" \
+                                   || log_test_passed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_type()
+{
+  ##############################################################################
+  # Make sure the Trace Type is always provided, whatever the mode.            #
+  ##############################################################################
+  local desc="Mandatory Trace Type"
+  local mode
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret1=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret2=$?
+
+  [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+                                 || log_test_passed "${desc}"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_size()
+{
+  ##############################################################################
+  # Make sure the Trace Size is always provided, whatever the mode.            #
+  ##############################################################################
+  local desc="Mandatory Trace Size"
+  local mode
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret1=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size 4 \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  local ret2=$?
+
+  [[ $ret1 == 0 || $ret2 != 0 ]] && log_test_failed "${desc}" \
+                                 || log_test_passed "${desc}"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_type_bits()
+{
+  ##############################################################################
+  # Make sure only allowed bits (0-11 and 22) are accepted.                    #
+  ##############################################################################
+  local desc="Trace Type bits"
+  local mode
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+  local i
+  for i in {0..23}
+  do
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc type ${bit2type[$i]} ns 0 size 4 \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [[ ($? == 0 && (($i -ge 12 && $i -le 21) || $i == 23)) ||
+          ($? != 0 && (($i -ge 0 && $i -le 11) || $i == 22)) ]]
+    then
+      local err=1
+      break
+    fi
+  done
+
+  [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+local_route_trace_size_values()
+{
+  ##############################################################################
+  # Make sure only allowed sizes (multiples of four in [4,244]) are accepted.  #
+  ##############################################################################
+  local desc="Trace Size values"
+  local mode
+
+  [ -z $1 ] && return
+
+  [ "$1" == "encap" ] && mode="$1 tundst 2001:db8:2::2" || mode="$1"
+
+  # we also try the next multiple of four after the MAX to check it's refused
+  local i
+  for i in {0..248}
+  do
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc type 0x800000 ns 0 size $i \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [[ ($? == 0 && ($i == 0 || $i == 248 || $(( $i % 4 )) != 0)) ||
+          ($? != 0 && $i != 0 && $i != 248 && $(( $i % 4 )) == 0) ]]
+    then
+      local err=1
+      break
+    fi
+  done
+
+  [ -z $err ] && log_test_passed "${desc}" || log_test_failed "${desc}"
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+}
+
+
+################################################################################
+#                                                                              #
+#                                 OUTPUT tests                                 #
+#                                                                              #
+################################################################################
+
+output_undef_ns()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node does NOT fill the trace when the      #
+  # corresponding IOAM Namespace-ID is not configured locally.                 #
+  ##############################################################################
+  local desc="Unknown IOAM Namespace-ID"
+  local ns=0
+  local tr_type=0x800000
+  local tr_size=4
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+output_no_room()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the  #
+  # Overflow flag when there is not enough room for its data.                  #
+  ##############################################################################
+  local desc="Missing room for data"
+  local ns=123
+  local tr_type=0xc00000
+  local tr_size=4
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+output_no_room_oss()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node does NOT fill the trace AND sets the  #
+  # Overflow flag when there is not enough room for the Opaque State Snapshot. #
+  ##############################################################################
+  local desc="Missing room for Opaque State Snapshot"
+  local ns=123
+  local tr_type=0x000002
+  local tr_size=4
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+output_bits()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node implements all supported bits by      #
+  # checking it correctly fills the trace with its data.                       #
+  ##############################################################################
+  local desc="Trace Type with supported bit <n> only"
+  local ns=123
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local tmp=${bit2size[22]}
+  bit2size[22]=$(( $tmp + ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+
+  local i
+  for i in {0..11} {22..22}
+  do
+    local descr="${desc/<n>/$i}"
+
+    if [[ "$1" == "encap" && $encap_tests != 0 ]]
+    then
+      log_test_skipped "${descr}"
+      continue
+    fi
+
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc \
+      type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [ $? == 0 ]
+    then
+      run_test "output_bit$i" "${descr}" $saddr \
+        ${bit2type[$i]} ${bit2size[$i]} $ns $1
+    else
+      log_test_failed "${descr}"
+    fi
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+
+  bit2size[22]=$tmp
+}
+
+output_sizes()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node allocates supported sizes correctly.  #
+  ##############################################################################
+  local desc="Trace Size of <n> bytes"
+  local ns=0
+  local tr_type=0x800000
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local i
+  for i in $(seq 4 4 244)
+  do
+    local descr="${desc/<n>/$i}"
+
+    if [[ "$1" == "encap" && $encap_tests != 0 ]]
+    then
+      log_test_skipped "${descr}"
+      continue
+    fi
+
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [ $? == 0 ]
+    then
+      run_test "output_size$i" "${descr}" $saddr $tr_type $i $ns $1
+    else
+      log_test_failed "${descr}"
+    fi
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+output_full_supp_trace()
+{
+  ##############################################################################
+  # Make sure an IOAM encapsulating node correctly fills a trace when all      #
+  # supported bits are set.                                                    #
+  ##############################################################################
+  local desc="Full supported trace"
+  local ns=123
+  local tr_type=0xfff002
+  local tr_size
+  local mode="$1"
+  local saddr="2001:db8:1::2"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    if [ "$2" == "tunsrc" ]
+    then
+      saddr="2001:db8:1::50"
+      mode+=" tunsrc 2001:db8:1::50"
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local i
+  tr_size=$(( ${#ALPHA[9]} + ((4 - (${#ALPHA[9]} % 4)) % 4) ))
+  for i in {0..11} {22..22}
+  do
+    tr_size=$((tr_size + bit2size[$i]))
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" $saddr $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+
+################################################################################
+#                                                                              #
+#                                 INPUT tests                                  #
+#                                                                              #
+################################################################################
+
+input_undef_ns()
+{
+  ##############################################################################
+  # Make sure an IOAM node does NOT fill the trace when the corresponding IOAM #
+  # Namespace-ID is not configured locally.                                    #
+  ##############################################################################
+  local desc="Unknown IOAM Namespace-ID"
+  local ns=0
+  local tr_type=0x800000
+  local tr_size=4
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_no_room()
+{
+  ##############################################################################
+  # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag  #
+  # when there is not enough room for its data.                                #
+  ##############################################################################
+  local desc="Missing room for data"
+  local ns=123
+  local tr_type=0xc00000
+  local tr_size=4
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_no_room_oss()
+{
+  ##############################################################################
+  # Make sure an IOAM node does NOT fill the trace AND sets the Overflow flag  #
+  # when there is not enough room for the Opaque State Snapshot.               #
+  ##############################################################################
+  local desc="Missing room for Opaque State Snapshot"
+  local ns=123
+  local tr_type=0x000002
+  local tr_size=4
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_disabled()
+{
+  ##############################################################################
+  # Make sure an IOAM node does NOT fill the trace when IOAM is not enabled on #
+  # the corresponding (ingress) interface.                                     #
+  ##############################################################################
+  local desc="IOAM disabled on ingress interface"
+  local ns=123
+  local tr_type=0x800000
+  local tr_size=4
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  # Exception: disable IOAM on ingress interface
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=0 &>/dev/null
+  local ret=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  ret=$((ret + $?))
+
+  if [ $ret == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  # Clean Exception
+  ip netns exec $ioam_node_beta \
+    sysctl -wq net.ipv6.conf.veth0.ioam6_enabled=1 &>/dev/null
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_oflag()
+{
+  ##############################################################################
+  # Make sure an IOAM node does NOT fill the trace when the Overflow flag is   #
+  # set.                                                                       #
+  ##############################################################################
+  local desc="Overflow flag is set"
+  local ns=123
+  local tr_type=0xc00000
+  local tr_size=4
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  # Exception:
+  #   Here, we need the sender to set the Overflow flag. For that, we will add
+  #   back the IOAM namespace that was previously configured on the sender.
+  ip -netns $ioam_node_alpha ioam namespace add 123 &>/dev/null
+  local ret=$?
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+  ret=$((ret + $?))
+
+  if [ $ret == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  # Clean Exception
+  ip -netns $ioam_node_alpha ioam namespace del 123 &>/dev/null
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_bits()
+{
+  ##############################################################################
+  # Make sure an IOAM node implements all supported bits by checking it        #
+  # correctly fills the trace with its data.                                   #
+  ##############################################################################
+  local desc="Trace Type with supported bit <n> only"
+  local ns=123
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local tmp=${bit2size[22]}
+  bit2size[22]=$(( $tmp + ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+
+  local i
+  for i in {0..11} {22..22}
+  do
+    local descr="${desc/<n>/$i}"
+
+    if [[ "$1" == "encap" && $encap_tests != 0 ]]
+    then
+      log_test_skipped "${descr}"
+      continue
+    fi
+
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc \
+      type ${bit2type[$i]} ns $ns size ${bit2size[$i]} \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [ $? == 0 ]
+    then
+      run_test "input_bit$i" "${descr}" 2001:db8:1::2 \
+        ${bit2type[$i]} ${bit2size[$i]} $ns $1
+    else
+      log_test_failed "${descr}"
+    fi
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+
+  bit2size[22]=$tmp
+}
+
+input_sizes()
+{
+  ##############################################################################
+  # Make sure an IOAM node handles all supported sizes correctly.              #
+  ##############################################################################
+  local desc="Trace Size of <n> bytes"
+  local ns=123
+  local tr_type=0x800000
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local i
+  for i in $(seq 4 4 244)
+  do
+    local descr="${desc/<n>/$i}"
+
+    if [[ "$1" == "encap" && $encap_tests != 0 ]]
+    then
+      log_test_skipped "${descr}"
+      continue
+    fi
+
+    ip -netns $ioam_node_alpha \
+      route change 2001:db8:2::/64 \
+      encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $i \
+      via 2001:db8:1::1 dev veth0 &>/dev/null
+
+    if [ $? == 0 ]
+    then
+      run_test "input_size$i" "${descr}" 2001:db8:1::2 $tr_type $i $ns $1
+    else
+      log_test_failed "${descr}"
+    fi
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+input_full_supp_trace()
+{
+  ##############################################################################
+  # Make sure an IOAM node correctly fills a trace when all supported bits are #
+  # set.                                                                       #
+  ##############################################################################
+  local desc="Full supported trace"
+  local ns=123
+  local tr_type=0xfff002
+  local tr_size
+  local mode="$1"
+
+  if [ "$1" == "encap" ]
+  then
+    if [ $encap_tests != 0 ]
+    then
+      log_test_skipped "${desc}"
+      return
+    fi
+
+    mode+=" tundst 2001:db8:2::2"
+    ip -netns $ioam_node_gamma link set ip6tnl0 up &>/dev/null
+  fi
+
+  local i
+  tr_size=$(( ${#BETA[9]} + ((4 - (${#BETA[9]} % 4)) % 4) ))
+  for i in {0..11} {22..22}
+  do
+    tr_size=$((tr_size + bit2size[$i]))
+  done
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 \
+    encap ioam6 mode $mode trace prealloc type $tr_type ns $ns size $tr_size \
+    via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  if [ $? == 0 ]
+  then
+    run_test ${FUNCNAME[0]} "${desc}" 2001:db8:1::2 $tr_type $tr_size $ns $1
+  else
+    log_test_failed "${desc}"
+  fi
+
+  ip -netns $ioam_node_alpha \
+    route change 2001:db8:2::/64 via 2001:db8:1::1 dev veth0 &>/dev/null
+
+  [ "$1" == "encap" ] && ip -netns $ioam_node_gamma \
+    link set ip6tnl0 down &>/dev/null
+}
+
+
+################################################################################
+#                                                                              #
+#                                     MAIN                                     #
+#                                                                              #
+################################################################################
+
+npassed=0
+nskipped=0
+nfailed=0
+
+if [ "$(id -u)" -ne 0 ]
+then
+  echo "SKIP: Need root privileges."
+  exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]
+then
+  echo "SKIP: Could not run test without ip tool."
+  exit $ksft_skip
+fi
+
+check_kernel_compatibility
+setup
+run
+cleanup
+
+if [ $nfailed != 0 ]
+then
+  exit $ksft_fail
+fi
+
+exit $ksft_pass
diff --git a/tools/testing/selftests/net/ioam6_parser.c b/tools/testing/selftests/net/ioam6_parser.c
new file mode 100644
index 000000000000..de4b5c9e8a74
--- /dev/null
+++ b/tools/testing/selftests/net/ioam6_parser.c
@@ -0,0 +1,1101 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Author: Justin Iurman (justin.iurman@uliege.be)
+ *
+ * IOAM tester for IPv6, see ioam6.sh for details on each test case.
+ */
+#include <arpa/inet.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/const.h>
+#include <linux/if_ether.h>
+#include <linux/ioam6.h>
+#include <linux/ipv6.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+struct ioam_config {
+	__u32 id;
+	__u64 wide;
+	__u16 ingr_id;
+	__u16 egr_id;
+	__u32 ingr_wide;
+	__u32 egr_wide;
+	__u32 ns_data;
+	__u64 ns_wide;
+	__u32 sc_id;
+	__u8 hlim;
+	char *sc_data;
+};
+
+/*
+ * Be careful if you modify structs below - everything MUST be kept synchronized
+ * with configurations inside ioam6.sh and always reflect the same.
+ */
+
+static struct ioam_config node1 = {
+	.id = 1,
+	.wide = 11111111,
+	.ingr_id = 0xffff, /* default value */
+	.egr_id = 101,
+	.ingr_wide = 0xffffffff, /* default value */
+	.egr_wide = 101101,
+	.ns_data = 0xdeadbeef,
+	.ns_wide = 0xcafec0caf00dc0de,
+	.sc_id = 777,
+	.sc_data = "something that will be 4n-aligned",
+	.hlim = 64,
+};
+
+static struct ioam_config node2 = {
+	.id = 2,
+	.wide = 22222222,
+	.ingr_id = 201,
+	.egr_id = 202,
+	.ingr_wide = 201201,
+	.egr_wide = 202202,
+	.ns_data = 0xffffffff, /* default value */
+	.ns_wide = 0xffffffffffffffff, /* default value */
+	.sc_id = 0xffffff, /* default value */
+	.sc_data = NULL,
+	.hlim = 63,
+};
+
+enum {
+	/**********
+	 * OUTPUT *
+	 **********/
+	__TEST_OUT_MIN,
+
+	TEST_OUT_UNDEF_NS,
+	TEST_OUT_NO_ROOM,
+	TEST_OUT_NO_ROOM_OSS,
+	TEST_OUT_BIT0,
+	TEST_OUT_BIT1,
+	TEST_OUT_BIT2,
+	TEST_OUT_BIT3,
+	TEST_OUT_BIT4,
+	TEST_OUT_BIT5,
+	TEST_OUT_BIT6,
+	TEST_OUT_BIT7,
+	TEST_OUT_BIT8,
+	TEST_OUT_BIT9,
+	TEST_OUT_BIT10,
+	TEST_OUT_BIT11,
+	TEST_OUT_BIT22,
+	TEST_OUT_SIZE4,
+	TEST_OUT_SIZE8,
+	TEST_OUT_SIZE12,
+	TEST_OUT_SIZE16,
+	TEST_OUT_SIZE20,
+	TEST_OUT_SIZE24,
+	TEST_OUT_SIZE28,
+	TEST_OUT_SIZE32,
+	TEST_OUT_SIZE36,
+	TEST_OUT_SIZE40,
+	TEST_OUT_SIZE44,
+	TEST_OUT_SIZE48,
+	TEST_OUT_SIZE52,
+	TEST_OUT_SIZE56,
+	TEST_OUT_SIZE60,
+	TEST_OUT_SIZE64,
+	TEST_OUT_SIZE68,
+	TEST_OUT_SIZE72,
+	TEST_OUT_SIZE76,
+	TEST_OUT_SIZE80,
+	TEST_OUT_SIZE84,
+	TEST_OUT_SIZE88,
+	TEST_OUT_SIZE92,
+	TEST_OUT_SIZE96,
+	TEST_OUT_SIZE100,
+	TEST_OUT_SIZE104,
+	TEST_OUT_SIZE108,
+	TEST_OUT_SIZE112,
+	TEST_OUT_SIZE116,
+	TEST_OUT_SIZE120,
+	TEST_OUT_SIZE124,
+	TEST_OUT_SIZE128,
+	TEST_OUT_SIZE132,
+	TEST_OUT_SIZE136,
+	TEST_OUT_SIZE140,
+	TEST_OUT_SIZE144,
+	TEST_OUT_SIZE148,
+	TEST_OUT_SIZE152,
+	TEST_OUT_SIZE156,
+	TEST_OUT_SIZE160,
+	TEST_OUT_SIZE164,
+	TEST_OUT_SIZE168,
+	TEST_OUT_SIZE172,
+	TEST_OUT_SIZE176,
+	TEST_OUT_SIZE180,
+	TEST_OUT_SIZE184,
+	TEST_OUT_SIZE188,
+	TEST_OUT_SIZE192,
+	TEST_OUT_SIZE196,
+	TEST_OUT_SIZE200,
+	TEST_OUT_SIZE204,
+	TEST_OUT_SIZE208,
+	TEST_OUT_SIZE212,
+	TEST_OUT_SIZE216,
+	TEST_OUT_SIZE220,
+	TEST_OUT_SIZE224,
+	TEST_OUT_SIZE228,
+	TEST_OUT_SIZE232,
+	TEST_OUT_SIZE236,
+	TEST_OUT_SIZE240,
+	TEST_OUT_SIZE244,
+	TEST_OUT_FULL_SUPP_TRACE,
+
+	__TEST_OUT_MAX,
+
+	/*********
+	 * INPUT *
+	 *********/
+	__TEST_IN_MIN,
+
+	TEST_IN_UNDEF_NS,
+	TEST_IN_NO_ROOM,
+	TEST_IN_NO_ROOM_OSS,
+	TEST_IN_DISABLED,
+	TEST_IN_OFLAG,
+	TEST_IN_BIT0,
+	TEST_IN_BIT1,
+	TEST_IN_BIT2,
+	TEST_IN_BIT3,
+	TEST_IN_BIT4,
+	TEST_IN_BIT5,
+	TEST_IN_BIT6,
+	TEST_IN_BIT7,
+	TEST_IN_BIT8,
+	TEST_IN_BIT9,
+	TEST_IN_BIT10,
+	TEST_IN_BIT11,
+	TEST_IN_BIT22,
+	TEST_IN_SIZE4,
+	TEST_IN_SIZE8,
+	TEST_IN_SIZE12,
+	TEST_IN_SIZE16,
+	TEST_IN_SIZE20,
+	TEST_IN_SIZE24,
+	TEST_IN_SIZE28,
+	TEST_IN_SIZE32,
+	TEST_IN_SIZE36,
+	TEST_IN_SIZE40,
+	TEST_IN_SIZE44,
+	TEST_IN_SIZE48,
+	TEST_IN_SIZE52,
+	TEST_IN_SIZE56,
+	TEST_IN_SIZE60,
+	TEST_IN_SIZE64,
+	TEST_IN_SIZE68,
+	TEST_IN_SIZE72,
+	TEST_IN_SIZE76,
+	TEST_IN_SIZE80,
+	TEST_IN_SIZE84,
+	TEST_IN_SIZE88,
+	TEST_IN_SIZE92,
+	TEST_IN_SIZE96,
+	TEST_IN_SIZE100,
+	TEST_IN_SIZE104,
+	TEST_IN_SIZE108,
+	TEST_IN_SIZE112,
+	TEST_IN_SIZE116,
+	TEST_IN_SIZE120,
+	TEST_IN_SIZE124,
+	TEST_IN_SIZE128,
+	TEST_IN_SIZE132,
+	TEST_IN_SIZE136,
+	TEST_IN_SIZE140,
+	TEST_IN_SIZE144,
+	TEST_IN_SIZE148,
+	TEST_IN_SIZE152,
+	TEST_IN_SIZE156,
+	TEST_IN_SIZE160,
+	TEST_IN_SIZE164,
+	TEST_IN_SIZE168,
+	TEST_IN_SIZE172,
+	TEST_IN_SIZE176,
+	TEST_IN_SIZE180,
+	TEST_IN_SIZE184,
+	TEST_IN_SIZE188,
+	TEST_IN_SIZE192,
+	TEST_IN_SIZE196,
+	TEST_IN_SIZE200,
+	TEST_IN_SIZE204,
+	TEST_IN_SIZE208,
+	TEST_IN_SIZE212,
+	TEST_IN_SIZE216,
+	TEST_IN_SIZE220,
+	TEST_IN_SIZE224,
+	TEST_IN_SIZE228,
+	TEST_IN_SIZE232,
+	TEST_IN_SIZE236,
+	TEST_IN_SIZE240,
+	TEST_IN_SIZE244,
+	TEST_IN_FULL_SUPP_TRACE,
+
+	__TEST_IN_MAX,
+
+	__TEST_MAX,
+};
+
+static int check_header(int tid, struct ioam6_trace_hdr *trace,
+			__u32 trace_type, __u8 trace_size, __u16 ioam_ns)
+{
+	if (__be16_to_cpu(trace->namespace_id) != ioam_ns ||
+	    __be32_to_cpu(trace->type_be32) != (trace_type << 8))
+		return 1;
+
+	switch (tid) {
+	case TEST_OUT_UNDEF_NS:
+	case TEST_IN_UNDEF_NS:
+	case TEST_IN_DISABLED:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 1 ||
+		       trace->remlen != 1;
+
+	case TEST_OUT_NO_ROOM:
+	case TEST_IN_NO_ROOM:
+	case TEST_IN_OFLAG:
+		return trace->overflow == 0 ||
+		       trace->nodelen != 2 ||
+		       trace->remlen != 1;
+
+	case TEST_OUT_NO_ROOM_OSS:
+		return trace->overflow == 0 ||
+		       trace->nodelen != 0 ||
+		       trace->remlen != 1;
+
+	case TEST_IN_NO_ROOM_OSS:
+	case TEST_OUT_BIT22:
+	case TEST_IN_BIT22:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 0 ||
+		       trace->remlen != 0;
+
+	case TEST_OUT_BIT0:
+	case TEST_IN_BIT0:
+	case TEST_OUT_BIT1:
+	case TEST_IN_BIT1:
+	case TEST_OUT_BIT2:
+	case TEST_IN_BIT2:
+	case TEST_OUT_BIT3:
+	case TEST_IN_BIT3:
+	case TEST_OUT_BIT4:
+	case TEST_IN_BIT4:
+	case TEST_OUT_BIT5:
+	case TEST_IN_BIT5:
+	case TEST_OUT_BIT6:
+	case TEST_IN_BIT6:
+	case TEST_OUT_BIT7:
+	case TEST_IN_BIT7:
+	case TEST_OUT_BIT11:
+	case TEST_IN_BIT11:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 1 ||
+		       trace->remlen != 0;
+
+	case TEST_OUT_BIT8:
+	case TEST_IN_BIT8:
+	case TEST_OUT_BIT9:
+	case TEST_IN_BIT9:
+	case TEST_OUT_BIT10:
+	case TEST_IN_BIT10:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 2 ||
+		       trace->remlen != 0;
+
+	case TEST_OUT_SIZE4:
+	case TEST_OUT_SIZE8:
+	case TEST_OUT_SIZE12:
+	case TEST_OUT_SIZE16:
+	case TEST_OUT_SIZE20:
+	case TEST_OUT_SIZE24:
+	case TEST_OUT_SIZE28:
+	case TEST_OUT_SIZE32:
+	case TEST_OUT_SIZE36:
+	case TEST_OUT_SIZE40:
+	case TEST_OUT_SIZE44:
+	case TEST_OUT_SIZE48:
+	case TEST_OUT_SIZE52:
+	case TEST_OUT_SIZE56:
+	case TEST_OUT_SIZE60:
+	case TEST_OUT_SIZE64:
+	case TEST_OUT_SIZE68:
+	case TEST_OUT_SIZE72:
+	case TEST_OUT_SIZE76:
+	case TEST_OUT_SIZE80:
+	case TEST_OUT_SIZE84:
+	case TEST_OUT_SIZE88:
+	case TEST_OUT_SIZE92:
+	case TEST_OUT_SIZE96:
+	case TEST_OUT_SIZE100:
+	case TEST_OUT_SIZE104:
+	case TEST_OUT_SIZE108:
+	case TEST_OUT_SIZE112:
+	case TEST_OUT_SIZE116:
+	case TEST_OUT_SIZE120:
+	case TEST_OUT_SIZE124:
+	case TEST_OUT_SIZE128:
+	case TEST_OUT_SIZE132:
+	case TEST_OUT_SIZE136:
+	case TEST_OUT_SIZE140:
+	case TEST_OUT_SIZE144:
+	case TEST_OUT_SIZE148:
+	case TEST_OUT_SIZE152:
+	case TEST_OUT_SIZE156:
+	case TEST_OUT_SIZE160:
+	case TEST_OUT_SIZE164:
+	case TEST_OUT_SIZE168:
+	case TEST_OUT_SIZE172:
+	case TEST_OUT_SIZE176:
+	case TEST_OUT_SIZE180:
+	case TEST_OUT_SIZE184:
+	case TEST_OUT_SIZE188:
+	case TEST_OUT_SIZE192:
+	case TEST_OUT_SIZE196:
+	case TEST_OUT_SIZE200:
+	case TEST_OUT_SIZE204:
+	case TEST_OUT_SIZE208:
+	case TEST_OUT_SIZE212:
+	case TEST_OUT_SIZE216:
+	case TEST_OUT_SIZE220:
+	case TEST_OUT_SIZE224:
+	case TEST_OUT_SIZE228:
+	case TEST_OUT_SIZE232:
+	case TEST_OUT_SIZE236:
+	case TEST_OUT_SIZE240:
+	case TEST_OUT_SIZE244:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 1 ||
+		       trace->remlen != trace_size / 4;
+
+	case TEST_IN_SIZE4:
+	case TEST_IN_SIZE8:
+	case TEST_IN_SIZE12:
+	case TEST_IN_SIZE16:
+	case TEST_IN_SIZE20:
+	case TEST_IN_SIZE24:
+	case TEST_IN_SIZE28:
+	case TEST_IN_SIZE32:
+	case TEST_IN_SIZE36:
+	case TEST_IN_SIZE40:
+	case TEST_IN_SIZE44:
+	case TEST_IN_SIZE48:
+	case TEST_IN_SIZE52:
+	case TEST_IN_SIZE56:
+	case TEST_IN_SIZE60:
+	case TEST_IN_SIZE64:
+	case TEST_IN_SIZE68:
+	case TEST_IN_SIZE72:
+	case TEST_IN_SIZE76:
+	case TEST_IN_SIZE80:
+	case TEST_IN_SIZE84:
+	case TEST_IN_SIZE88:
+	case TEST_IN_SIZE92:
+	case TEST_IN_SIZE96:
+	case TEST_IN_SIZE100:
+	case TEST_IN_SIZE104:
+	case TEST_IN_SIZE108:
+	case TEST_IN_SIZE112:
+	case TEST_IN_SIZE116:
+	case TEST_IN_SIZE120:
+	case TEST_IN_SIZE124:
+	case TEST_IN_SIZE128:
+	case TEST_IN_SIZE132:
+	case TEST_IN_SIZE136:
+	case TEST_IN_SIZE140:
+	case TEST_IN_SIZE144:
+	case TEST_IN_SIZE148:
+	case TEST_IN_SIZE152:
+	case TEST_IN_SIZE156:
+	case TEST_IN_SIZE160:
+	case TEST_IN_SIZE164:
+	case TEST_IN_SIZE168:
+	case TEST_IN_SIZE172:
+	case TEST_IN_SIZE176:
+	case TEST_IN_SIZE180:
+	case TEST_IN_SIZE184:
+	case TEST_IN_SIZE188:
+	case TEST_IN_SIZE192:
+	case TEST_IN_SIZE196:
+	case TEST_IN_SIZE200:
+	case TEST_IN_SIZE204:
+	case TEST_IN_SIZE208:
+	case TEST_IN_SIZE212:
+	case TEST_IN_SIZE216:
+	case TEST_IN_SIZE220:
+	case TEST_IN_SIZE224:
+	case TEST_IN_SIZE228:
+	case TEST_IN_SIZE232:
+	case TEST_IN_SIZE236:
+	case TEST_IN_SIZE240:
+	case TEST_IN_SIZE244:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 1 ||
+		       trace->remlen != (trace_size / 4) - trace->nodelen;
+
+	case TEST_OUT_FULL_SUPP_TRACE:
+	case TEST_IN_FULL_SUPP_TRACE:
+		return trace->overflow == 1 ||
+		       trace->nodelen != 15 ||
+		       trace->remlen != 0;
+
+	default:
+		break;
+	}
+
+	return 1;
+}
+
+static int check_data(struct ioam6_trace_hdr *trace, __u8 trace_size,
+		      const struct ioam_config cnf, bool is_output)
+{
+	unsigned int len, i;
+	__u8 aligned;
+	__u64 raw64;
+	__u32 raw32;
+	__u8 *p;
+
+	if (trace->type.bit12 | trace->type.bit13 | trace->type.bit14 |
+	    trace->type.bit15 | trace->type.bit16 | trace->type.bit17 |
+	    trace->type.bit18 | trace->type.bit19 | trace->type.bit20 |
+	    trace->type.bit21 | trace->type.bit23)
+		return 1;
+
+	for (i = 0; i < trace->remlen * 4; i++) {
+		if (trace->data[i] != 0)
+			return 1;
+	}
+
+	if (trace->remlen * 4 == trace_size)
+		return 0;
+
+	p = trace->data + trace->remlen * 4;
+
+	if (trace->type.bit0) {
+		raw32 = __be32_to_cpu(*((__u32 *)p));
+		if (cnf.hlim != (raw32 >> 24) || cnf.id != (raw32 & 0xffffff))
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit1) {
+		raw32 = __be32_to_cpu(*((__u32 *)p));
+		if (cnf.ingr_id != (raw32 >> 16) ||
+		    cnf.egr_id != (raw32 & 0xffff))
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit2) {
+		raw32 = __be32_to_cpu(*((__u32 *)p));
+		if ((is_output && raw32 != 0xffffffff) ||
+		    (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit3) {
+		raw32 = __be32_to_cpu(*((__u32 *)p));
+		if ((is_output && raw32 != 0xffffffff) ||
+		    (!is_output && (raw32 == 0 || raw32 == 0xffffffff)))
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit4) {
+		if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit5) {
+		if (__be32_to_cpu(*((__u32 *)p)) != cnf.ns_data)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit6) {
+		if (__be32_to_cpu(*((__u32 *)p)) == 0xffffffff)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit7) {
+		if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit8) {
+		raw64 = __be64_to_cpu(*((__u64 *)p));
+		if (cnf.hlim != (raw64 >> 56) ||
+		    cnf.wide != (raw64 & 0xffffffffffffff))
+			return 1;
+		p += sizeof(__u64);
+	}
+
+	if (trace->type.bit9) {
+		if (__be32_to_cpu(*((__u32 *)p)) != cnf.ingr_wide)
+			return 1;
+		p += sizeof(__u32);
+
+		if (__be32_to_cpu(*((__u32 *)p)) != cnf.egr_wide)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit10) {
+		if (__be64_to_cpu(*((__u64 *)p)) != cnf.ns_wide)
+			return 1;
+		p += sizeof(__u64);
+	}
+
+	if (trace->type.bit11) {
+		if (__be32_to_cpu(*((__u32 *)p)) != 0xffffffff)
+			return 1;
+		p += sizeof(__u32);
+	}
+
+	if (trace->type.bit22) {
+		len = cnf.sc_data ? strlen(cnf.sc_data) : 0;
+		aligned = cnf.sc_data ? __ALIGN_KERNEL(len, 4) : 0;
+
+		raw32 = __be32_to_cpu(*((__u32 *)p));
+		if (aligned != (raw32 >> 24) * 4 ||
+		    cnf.sc_id != (raw32 & 0xffffff))
+			return 1;
+		p += sizeof(__u32);
+
+		if (cnf.sc_data) {
+			if (strncmp((char *)p, cnf.sc_data, len))
+				return 1;
+
+			p += len;
+			aligned -= len;
+
+			while (aligned--) {
+				if (*p != '\0')
+					return 1;
+				p += sizeof(__u8);
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int check_ioam_trace(int tid, struct ioam6_trace_hdr *trace,
+			    __u32 trace_type, __u8 trace_size, __u16 ioam_ns)
+{
+	if (check_header(tid, trace, trace_type, trace_size, ioam_ns))
+		return 1;
+
+	if (tid > __TEST_OUT_MIN && tid < __TEST_OUT_MAX)
+		return check_data(trace, trace_size, node1, true);
+
+	if (tid > __TEST_IN_MIN && tid < __TEST_IN_MAX)
+		return check_data(trace, trace_size, node2, false);
+
+	return 1;
+}
+
+static int str2id(const char *tname)
+{
+	if (!strcmp("output_undef_ns", tname))
+		return TEST_OUT_UNDEF_NS;
+	if (!strcmp("output_no_room", tname))
+		return TEST_OUT_NO_ROOM;
+	if (!strcmp("output_no_room_oss", tname))
+		return TEST_OUT_NO_ROOM_OSS;
+	if (!strcmp("output_bit0", tname))
+		return TEST_OUT_BIT0;
+	if (!strcmp("output_bit1", tname))
+		return TEST_OUT_BIT1;
+	if (!strcmp("output_bit2", tname))
+		return TEST_OUT_BIT2;
+	if (!strcmp("output_bit3", tname))
+		return TEST_OUT_BIT3;
+	if (!strcmp("output_bit4", tname))
+		return TEST_OUT_BIT4;
+	if (!strcmp("output_bit5", tname))
+		return TEST_OUT_BIT5;
+	if (!strcmp("output_bit6", tname))
+		return TEST_OUT_BIT6;
+	if (!strcmp("output_bit7", tname))
+		return TEST_OUT_BIT7;
+	if (!strcmp("output_bit8", tname))
+		return TEST_OUT_BIT8;
+	if (!strcmp("output_bit9", tname))
+		return TEST_OUT_BIT9;
+	if (!strcmp("output_bit10", tname))
+		return TEST_OUT_BIT10;
+	if (!strcmp("output_bit11", tname))
+		return TEST_OUT_BIT11;
+	if (!strcmp("output_bit22", tname))
+		return TEST_OUT_BIT22;
+	if (!strcmp("output_size4", tname))
+		return TEST_OUT_SIZE4;
+	if (!strcmp("output_size8", tname))
+		return TEST_OUT_SIZE8;
+	if (!strcmp("output_size12", tname))
+		return TEST_OUT_SIZE12;
+	if (!strcmp("output_size16", tname))
+		return TEST_OUT_SIZE16;
+	if (!strcmp("output_size20", tname))
+		return TEST_OUT_SIZE20;
+	if (!strcmp("output_size24", tname))
+		return TEST_OUT_SIZE24;
+	if (!strcmp("output_size28", tname))
+		return TEST_OUT_SIZE28;
+	if (!strcmp("output_size32", tname))
+		return TEST_OUT_SIZE32;
+	if (!strcmp("output_size36", tname))
+		return TEST_OUT_SIZE36;
+	if (!strcmp("output_size40", tname))
+		return TEST_OUT_SIZE40;
+	if (!strcmp("output_size44", tname))
+		return TEST_OUT_SIZE44;
+	if (!strcmp("output_size48", tname))
+		return TEST_OUT_SIZE48;
+	if (!strcmp("output_size52", tname))
+		return TEST_OUT_SIZE52;
+	if (!strcmp("output_size56", tname))
+		return TEST_OUT_SIZE56;
+	if (!strcmp("output_size60", tname))
+		return TEST_OUT_SIZE60;
+	if (!strcmp("output_size64", tname))
+		return TEST_OUT_SIZE64;
+	if (!strcmp("output_size68", tname))
+		return TEST_OUT_SIZE68;
+	if (!strcmp("output_size72", tname))
+		return TEST_OUT_SIZE72;
+	if (!strcmp("output_size76", tname))
+		return TEST_OUT_SIZE76;
+	if (!strcmp("output_size80", tname))
+		return TEST_OUT_SIZE80;
+	if (!strcmp("output_size84", tname))
+		return TEST_OUT_SIZE84;
+	if (!strcmp("output_size88", tname))
+		return TEST_OUT_SIZE88;
+	if (!strcmp("output_size92", tname))
+		return TEST_OUT_SIZE92;
+	if (!strcmp("output_size96", tname))
+		return TEST_OUT_SIZE96;
+	if (!strcmp("output_size100", tname))
+		return TEST_OUT_SIZE100;
+	if (!strcmp("output_size104", tname))
+		return TEST_OUT_SIZE104;
+	if (!strcmp("output_size108", tname))
+		return TEST_OUT_SIZE108;
+	if (!strcmp("output_size112", tname))
+		return TEST_OUT_SIZE112;
+	if (!strcmp("output_size116", tname))
+		return TEST_OUT_SIZE116;
+	if (!strcmp("output_size120", tname))
+		return TEST_OUT_SIZE120;
+	if (!strcmp("output_size124", tname))
+		return TEST_OUT_SIZE124;
+	if (!strcmp("output_size128", tname))
+		return TEST_OUT_SIZE128;
+	if (!strcmp("output_size132", tname))
+		return TEST_OUT_SIZE132;
+	if (!strcmp("output_size136", tname))
+		return TEST_OUT_SIZE136;
+	if (!strcmp("output_size140", tname))
+		return TEST_OUT_SIZE140;
+	if (!strcmp("output_size144", tname))
+		return TEST_OUT_SIZE144;
+	if (!strcmp("output_size148", tname))
+		return TEST_OUT_SIZE148;
+	if (!strcmp("output_size152", tname))
+		return TEST_OUT_SIZE152;
+	if (!strcmp("output_size156", tname))
+		return TEST_OUT_SIZE156;
+	if (!strcmp("output_size160", tname))
+		return TEST_OUT_SIZE160;
+	if (!strcmp("output_size164", tname))
+		return TEST_OUT_SIZE164;
+	if (!strcmp("output_size168", tname))
+		return TEST_OUT_SIZE168;
+	if (!strcmp("output_size172", tname))
+		return TEST_OUT_SIZE172;
+	if (!strcmp("output_size176", tname))
+		return TEST_OUT_SIZE176;
+	if (!strcmp("output_size180", tname))
+		return TEST_OUT_SIZE180;
+	if (!strcmp("output_size184", tname))
+		return TEST_OUT_SIZE184;
+	if (!strcmp("output_size188", tname))
+		return TEST_OUT_SIZE188;
+	if (!strcmp("output_size192", tname))
+		return TEST_OUT_SIZE192;
+	if (!strcmp("output_size196", tname))
+		return TEST_OUT_SIZE196;
+	if (!strcmp("output_size200", tname))
+		return TEST_OUT_SIZE200;
+	if (!strcmp("output_size204", tname))
+		return TEST_OUT_SIZE204;
+	if (!strcmp("output_size208", tname))
+		return TEST_OUT_SIZE208;
+	if (!strcmp("output_size212", tname))
+		return TEST_OUT_SIZE212;
+	if (!strcmp("output_size216", tname))
+		return TEST_OUT_SIZE216;
+	if (!strcmp("output_size220", tname))
+		return TEST_OUT_SIZE220;
+	if (!strcmp("output_size224", tname))
+		return TEST_OUT_SIZE224;
+	if (!strcmp("output_size228", tname))
+		return TEST_OUT_SIZE228;
+	if (!strcmp("output_size232", tname))
+		return TEST_OUT_SIZE232;
+	if (!strcmp("output_size236", tname))
+		return TEST_OUT_SIZE236;
+	if (!strcmp("output_size240", tname))
+		return TEST_OUT_SIZE240;
+	if (!strcmp("output_size244", tname))
+		return TEST_OUT_SIZE244;
+	if (!strcmp("output_full_supp_trace", tname))
+		return TEST_OUT_FULL_SUPP_TRACE;
+	if (!strcmp("input_undef_ns", tname))
+		return TEST_IN_UNDEF_NS;
+	if (!strcmp("input_no_room", tname))
+		return TEST_IN_NO_ROOM;
+	if (!strcmp("input_no_room_oss", tname))
+		return TEST_IN_NO_ROOM_OSS;
+	if (!strcmp("input_disabled", tname))
+		return TEST_IN_DISABLED;
+	if (!strcmp("input_oflag", tname))
+		return TEST_IN_OFLAG;
+	if (!strcmp("input_bit0", tname))
+		return TEST_IN_BIT0;
+	if (!strcmp("input_bit1", tname))
+		return TEST_IN_BIT1;
+	if (!strcmp("input_bit2", tname))
+		return TEST_IN_BIT2;
+	if (!strcmp("input_bit3", tname))
+		return TEST_IN_BIT3;
+	if (!strcmp("input_bit4", tname))
+		return TEST_IN_BIT4;
+	if (!strcmp("input_bit5", tname))
+		return TEST_IN_BIT5;
+	if (!strcmp("input_bit6", tname))
+		return TEST_IN_BIT6;
+	if (!strcmp("input_bit7", tname))
+		return TEST_IN_BIT7;
+	if (!strcmp("input_bit8", tname))
+		return TEST_IN_BIT8;
+	if (!strcmp("input_bit9", tname))
+		return TEST_IN_BIT9;
+	if (!strcmp("input_bit10", tname))
+		return TEST_IN_BIT10;
+	if (!strcmp("input_bit11", tname))
+		return TEST_IN_BIT11;
+	if (!strcmp("input_bit22", tname))
+		return TEST_IN_BIT22;
+	if (!strcmp("input_size4", tname))
+		return TEST_IN_SIZE4;
+	if (!strcmp("input_size8", tname))
+		return TEST_IN_SIZE8;
+	if (!strcmp("input_size12", tname))
+		return TEST_IN_SIZE12;
+	if (!strcmp("input_size16", tname))
+		return TEST_IN_SIZE16;
+	if (!strcmp("input_size20", tname))
+		return TEST_IN_SIZE20;
+	if (!strcmp("input_size24", tname))
+		return TEST_IN_SIZE24;
+	if (!strcmp("input_size28", tname))
+		return TEST_IN_SIZE28;
+	if (!strcmp("input_size32", tname))
+		return TEST_IN_SIZE32;
+	if (!strcmp("input_size36", tname))
+		return TEST_IN_SIZE36;
+	if (!strcmp("input_size40", tname))
+		return TEST_IN_SIZE40;
+	if (!strcmp("input_size44", tname))
+		return TEST_IN_SIZE44;
+	if (!strcmp("input_size48", tname))
+		return TEST_IN_SIZE48;
+	if (!strcmp("input_size52", tname))
+		return TEST_IN_SIZE52;
+	if (!strcmp("input_size56", tname))
+		return TEST_IN_SIZE56;
+	if (!strcmp("input_size60", tname))
+		return TEST_IN_SIZE60;
+	if (!strcmp("input_size64", tname))
+		return TEST_IN_SIZE64;
+	if (!strcmp("input_size68", tname))
+		return TEST_IN_SIZE68;
+	if (!strcmp("input_size72", tname))
+		return TEST_IN_SIZE72;
+	if (!strcmp("input_size76", tname))
+		return TEST_IN_SIZE76;
+	if (!strcmp("input_size80", tname))
+		return TEST_IN_SIZE80;
+	if (!strcmp("input_size84", tname))
+		return TEST_IN_SIZE84;
+	if (!strcmp("input_size88", tname))
+		return TEST_IN_SIZE88;
+	if (!strcmp("input_size92", tname))
+		return TEST_IN_SIZE92;
+	if (!strcmp("input_size96", tname))
+		return TEST_IN_SIZE96;
+	if (!strcmp("input_size100", tname))
+		return TEST_IN_SIZE100;
+	if (!strcmp("input_size104", tname))
+		return TEST_IN_SIZE104;
+	if (!strcmp("input_size108", tname))
+		return TEST_IN_SIZE108;
+	if (!strcmp("input_size112", tname))
+		return TEST_IN_SIZE112;
+	if (!strcmp("input_size116", tname))
+		return TEST_IN_SIZE116;
+	if (!strcmp("input_size120", tname))
+		return TEST_IN_SIZE120;
+	if (!strcmp("input_size124", tname))
+		return TEST_IN_SIZE124;
+	if (!strcmp("input_size128", tname))
+		return TEST_IN_SIZE128;
+	if (!strcmp("input_size132", tname))
+		return TEST_IN_SIZE132;
+	if (!strcmp("input_size136", tname))
+		return TEST_IN_SIZE136;
+	if (!strcmp("input_size140", tname))
+		return TEST_IN_SIZE140;
+	if (!strcmp("input_size144", tname))
+		return TEST_IN_SIZE144;
+	if (!strcmp("input_size148", tname))
+		return TEST_IN_SIZE148;
+	if (!strcmp("input_size152", tname))
+		return TEST_IN_SIZE152;
+	if (!strcmp("input_size156", tname))
+		return TEST_IN_SIZE156;
+	if (!strcmp("input_size160", tname))
+		return TEST_IN_SIZE160;
+	if (!strcmp("input_size164", tname))
+		return TEST_IN_SIZE164;
+	if (!strcmp("input_size168", tname))
+		return TEST_IN_SIZE168;
+	if (!strcmp("input_size172", tname))
+		return TEST_IN_SIZE172;
+	if (!strcmp("input_size176", tname))
+		return TEST_IN_SIZE176;
+	if (!strcmp("input_size180", tname))
+		return TEST_IN_SIZE180;
+	if (!strcmp("input_size184", tname))
+		return TEST_IN_SIZE184;
+	if (!strcmp("input_size188", tname))
+		return TEST_IN_SIZE188;
+	if (!strcmp("input_size192", tname))
+		return TEST_IN_SIZE192;
+	if (!strcmp("input_size196", tname))
+		return TEST_IN_SIZE196;
+	if (!strcmp("input_size200", tname))
+		return TEST_IN_SIZE200;
+	if (!strcmp("input_size204", tname))
+		return TEST_IN_SIZE204;
+	if (!strcmp("input_size208", tname))
+		return TEST_IN_SIZE208;
+	if (!strcmp("input_size212", tname))
+		return TEST_IN_SIZE212;
+	if (!strcmp("input_size216", tname))
+		return TEST_IN_SIZE216;
+	if (!strcmp("input_size220", tname))
+		return TEST_IN_SIZE220;
+	if (!strcmp("input_size224", tname))
+		return TEST_IN_SIZE224;
+	if (!strcmp("input_size228", tname))
+		return TEST_IN_SIZE228;
+	if (!strcmp("input_size232", tname))
+		return TEST_IN_SIZE232;
+	if (!strcmp("input_size236", tname))
+		return TEST_IN_SIZE236;
+	if (!strcmp("input_size240", tname))
+		return TEST_IN_SIZE240;
+	if (!strcmp("input_size244", tname))
+		return TEST_IN_SIZE244;
+	if (!strcmp("input_full_supp_trace", tname))
+		return TEST_IN_FULL_SUPP_TRACE;
+
+	return -1;
+}
+
+static int ipv6_addr_equal(const struct in6_addr *a1, const struct in6_addr *a2)
+{
+	return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
+		(a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
+		(a1->s6_addr32[2] ^ a2->s6_addr32[2]) |
+		(a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
+}
+
+static int get_u32(__u32 *val, const char *arg, int base)
+{
+	unsigned long res;
+	char *ptr;
+
+	if (!arg || !*arg)
+		return -1;
+	res = strtoul(arg, &ptr, base);
+
+	if (!ptr || ptr == arg || *ptr)
+		return -1;
+
+	if (res == ULONG_MAX && errno == ERANGE)
+		return -1;
+
+	if (res > 0xFFFFFFFFUL)
+		return -1;
+
+	*val = res;
+	return 0;
+}
+
+static int get_u16(__u16 *val, const char *arg, int base)
+{
+	unsigned long res;
+	char *ptr;
+
+	if (!arg || !*arg)
+		return -1;
+	res = strtoul(arg, &ptr, base);
+
+	if (!ptr || ptr == arg || *ptr)
+		return -1;
+
+	if (res == ULONG_MAX && errno == ERANGE)
+		return -1;
+
+	if (res > 0xFFFFUL)
+		return -1;
+
+	*val = res;
+	return 0;
+}
+
+static int get_u8(__u8 *val, const char *arg, int base)
+{
+	unsigned long res;
+	char *ptr;
+
+	if (!arg || !*arg)
+		return -1;
+	res = strtoul(arg, &ptr, base);
+
+	if (!ptr || ptr == arg || *ptr)
+		return -1;
+
+	if (res == ULONG_MAX && errno == ERANGE)
+		return -1;
+
+	if (res > 0xFFUL)
+		return -1;
+
+	*val = res;
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	__u8 buffer[512], *ptr, nexthdr, tr_size;
+	struct ioam6_trace_hdr *trace;
+	unsigned int hoplen, ret = 1;
+	struct ipv6_hopopt_hdr *hbh;
+	int fd, size, testname_id;
+	struct in6_addr src, dst;
+	struct ioam6_hdr *ioam6;
+	struct timeval timeout;
+	struct ipv6hdr *ipv6;
+	__u32 tr_type;
+	__u16 ioam_ns;
+
+	if (argc != 9)
+		goto out;
+
+	testname_id = str2id(argv[2]);
+
+	if (testname_id < 0 ||
+	    inet_pton(AF_INET6, argv[3], &src) != 1 ||
+	    inet_pton(AF_INET6, argv[4], &dst) != 1 ||
+	    get_u32(&tr_type, argv[5], 16) ||
+	    get_u8(&tr_size, argv[6], 0) ||
+	    get_u16(&ioam_ns, argv[7], 0))
+		goto out;
+
+	nexthdr = (!strcmp(argv[8], "encap") ? IPPROTO_IPV6 : IPPROTO_ICMPV6);
+
+	hoplen = sizeof(*hbh);
+	hoplen += 2; // 2-byte padding for alignment
+	hoplen += sizeof(*ioam6); // IOAM option header
+	hoplen += sizeof(*trace); // IOAM trace header
+	hoplen += tr_size; // IOAM trace size
+	hoplen += (tr_size % 8); // optional padding
+
+	fd = socket(AF_PACKET, SOCK_DGRAM, __cpu_to_be16(ETH_P_IPV6));
+	if (fd < 0)
+		goto out;
+
+	if (setsockopt(fd, SOL_SOCKET, SO_BINDTODEVICE,
+		       argv[1], strlen(argv[1])))
+		goto close;
+
+	timeout.tv_sec = 1;
+	timeout.tv_usec = 0;
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO,
+		       (const char *)&timeout, sizeof(timeout)))
+		goto close;
+recv:
+	size = recv(fd, buffer, sizeof(buffer), 0);
+	if (size <= 0)
+		goto close;
+
+	ipv6 = (struct ipv6hdr *)buffer;
+
+	/* Skip packets that do not have the expected src/dst address or that
+	 * do not have a Hop-by-hop.
+	 */
+	if (!ipv6_addr_equal(&ipv6->saddr, &src) ||
+	    !ipv6_addr_equal(&ipv6->daddr, &dst) ||
+	    ipv6->nexthdr != IPPROTO_HOPOPTS)
+		goto recv;
+
+	/* Check Hbh's Next Header and Size. */
+	hbh = (struct ipv6_hopopt_hdr *)(buffer + sizeof(*ipv6));
+	if (hbh->nexthdr != nexthdr || hbh->hdrlen != (hoplen >> 3) - 1)
+		goto close;
+
+	/* Check we have a 2-byte padding for alignment. */
+	ptr = (__u8 *)hbh + sizeof(*hbh);
+	if (ptr[0] != IPV6_TLV_PADN && ptr[1] != 0)
+		goto close;
+
+	/* Check we now have the IOAM option. */
+	ptr += 2;
+	if (ptr[0] != IPV6_TLV_IOAM)
+		goto close;
+
+	/* Check its size and the IOAM option type. */
+	ioam6 = (struct ioam6_hdr *)ptr;
+	if (ioam6->opt_len != sizeof(*ioam6) - 2 + sizeof(*trace) + tr_size ||
+	    ioam6->type != IOAM6_TYPE_PREALLOC)
+		goto close;
+
+	trace = (struct ioam6_trace_hdr *)(ptr + sizeof(*ioam6));
+
+	/* Check the trailing 4-byte padding (potentially). */
+	ptr = (__u8 *)trace + sizeof(*trace) + tr_size;
+	if (tr_size % 8 && ptr[0] != IPV6_TLV_PADN && ptr[1] != 2 &&
+	    ptr[2] != 0 && ptr[3] != 0)
+		goto close;
+
+	/* Check the IOAM header and data. */
+	ret = check_ioam_trace(testname_id, trace, tr_type, tr_size, ioam_ns);
+close:
+	close(fd);
+out:
+	return ret;
+}
diff --git a/tools/testing/selftests/net/ip6_gre_headroom.sh b/tools/testing/selftests/net/ip6_gre_headroom.sh
new file mode 100755
index 000000000000..5b41e8bb6e2d
--- /dev/null
+++ b/tools/testing/selftests/net/ip6_gre_headroom.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test that enough headroom is reserved for the first packet passing through an
+# IPv6 GRE-like netdevice.
+
+setup_prepare()
+{
+	ip link add h1 type veth peer name swp1
+	ip link add h3 type veth peer name swp3
+
+	ip link set dev h1 up
+	ip address add 192.0.2.1/28 dev h1
+
+	ip link add dev vh3 type vrf table 20
+	ip link set dev h3 master vh3
+	ip link set dev vh3 up
+	ip link set dev h3 up
+
+	ip link set dev swp3 up
+	ip address add dev swp3 2001:db8:2::1/64
+	ip address add dev swp3 2001:db8:2::3/64
+
+	ip link set dev swp1 up
+	tc qdisc add dev swp1 clsact
+
+	ip link add name er6 type ip6erspan \
+	   local 2001:db8:2::1 remote 2001:db8:2::2 oseq okey 123
+	ip link set dev er6 up
+
+	ip link add name gt6 type ip6gretap \
+	   local 2001:db8:2::3 remote 2001:db8:2::4
+	ip link set dev gt6 up
+
+	sleep 1
+}
+
+cleanup()
+{
+	ip link del dev gt6
+	ip link del dev er6
+	ip link del dev swp1
+	ip link del dev swp3
+	ip link del dev vh3
+}
+
+test_headroom()
+{
+	local type=$1; shift
+	local tundev=$1; shift
+
+	tc filter add dev swp1 ingress pref 1000 matchall skip_hw \
+		action mirred egress mirror dev $tundev
+	ping -I h1 192.0.2.2 -c 1 -w 2 &> /dev/null
+	tc filter del dev swp1 ingress pref 1000
+
+	# If it doesn't panic, it passes.
+	printf "TEST: %-60s  [PASS]\n" "$type headroom"
+}
+
+trap cleanup EXIT
+
+setup_prepare
+test_headroom ip6gretap gt6
+test_headroom ip6erspan er6
diff --git a/tools/testing/selftests/net/ip_defrag.c b/tools/testing/selftests/net/ip_defrag.c
new file mode 100644
index 000000000000..f9ed749fd8c7
--- /dev/null
+++ b/tools/testing/selftests/net/ip_defrag.c
@@ -0,0 +1,472 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+static bool		cfg_do_ipv4;
+static bool		cfg_do_ipv6;
+static bool		cfg_verbose;
+static bool		cfg_overlap;
+static bool		cfg_permissive;
+static unsigned short	cfg_port = 9000;
+
+const struct in_addr addr4 = { .s_addr = __constant_htonl(INADDR_LOOPBACK + 2) };
+const struct in6_addr addr6 = IN6ADDR_LOOPBACK_INIT;
+
+#define IP4_HLEN	(sizeof(struct iphdr))
+#define IP6_HLEN	(sizeof(struct ip6_hdr))
+#define UDP_HLEN	(sizeof(struct udphdr))
+
+/* IPv6 fragment header lenth. */
+#define FRAG_HLEN	8
+
+static int payload_len;
+static int max_frag_len;
+
+#define MSG_LEN_MAX	10000	/* Max UDP payload length. */
+
+#define IP4_MF		(1u << 13)  /* IPv4 MF flag. */
+#define IP6_MF		(1)  /* IPv6 MF flag. */
+
+#define CSUM_MANGLED_0 (0xffff)
+
+static uint8_t udp_payload[MSG_LEN_MAX];
+static uint8_t ip_frame[IP_MAXPACKET];
+static uint32_t ip_id = 0xabcd;
+static int msg_counter;
+static int frag_counter;
+static unsigned int seed;
+
+/* Receive a UDP packet. Validate it matches udp_payload. */
+static void recv_validate_udp(int fd_udp)
+{
+	ssize_t ret;
+	static uint8_t recv_buff[MSG_LEN_MAX];
+
+	ret = recv(fd_udp, recv_buff, payload_len, 0);
+	msg_counter++;
+
+	if (cfg_overlap) {
+		if (ret == -1 && (errno == ETIMEDOUT || errno == EAGAIN))
+			return;  /* OK */
+		if (!cfg_permissive) {
+			if (ret != -1)
+				error(1, 0, "recv: expected timeout; got %d",
+					(int)ret);
+			error(1, errno, "recv: expected timeout: %d", errno);
+		}
+	}
+
+	if (ret == -1)
+		error(1, errno, "recv: payload_len = %d max_frag_len = %d",
+			payload_len, max_frag_len);
+	if (ret != payload_len)
+		error(1, 0, "recv: wrong size: %d vs %d", (int)ret, payload_len);
+	if (memcmp(udp_payload, recv_buff, payload_len))
+		error(1, 0, "recv: wrong data");
+}
+
+static uint32_t raw_checksum(uint8_t *buf, int len, uint32_t sum)
+{
+	int i;
+
+	for (i = 0; i < (len & ~1U); i += 2) {
+		sum += (u_int16_t)ntohs(*((u_int16_t *)(buf + i)));
+		if (sum > 0xffff)
+			sum -= 0xffff;
+	}
+
+	if (i < len) {
+		sum += buf[i] << 8;
+		if (sum > 0xffff)
+			sum -= 0xffff;
+	}
+
+	return sum;
+}
+
+static uint16_t udp_checksum(struct ip *iphdr, struct udphdr *udphdr)
+{
+	uint32_t sum = 0;
+	uint16_t res;
+
+	sum = raw_checksum((uint8_t *)&iphdr->ip_src, 2 * sizeof(iphdr->ip_src),
+				IPPROTO_UDP + (uint32_t)(UDP_HLEN + payload_len));
+	sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);
+	sum = raw_checksum((uint8_t *)udp_payload, payload_len, sum);
+	res = 0xffff & ~sum;
+	if (res)
+		return htons(res);
+	else
+		return CSUM_MANGLED_0;
+}
+
+static uint16_t udp6_checksum(struct ip6_hdr *iphdr, struct udphdr *udphdr)
+{
+	uint32_t sum = 0;
+	uint16_t res;
+
+	sum = raw_checksum((uint8_t *)&iphdr->ip6_src, 2 * sizeof(iphdr->ip6_src),
+				IPPROTO_UDP);
+	sum = raw_checksum((uint8_t *)&udphdr->len, sizeof(udphdr->len), sum);
+	sum = raw_checksum((uint8_t *)udphdr, UDP_HLEN, sum);
+	sum = raw_checksum((uint8_t *)udp_payload, payload_len, sum);
+	res = 0xffff & ~sum;
+	if (res)
+		return htons(res);
+	else
+		return CSUM_MANGLED_0;
+}
+
+static void send_fragment(int fd_raw, struct sockaddr *addr, socklen_t alen,
+				int offset, bool ipv6)
+{
+	int frag_len;
+	int res;
+	int payload_offset = offset > 0 ? offset - UDP_HLEN : 0;
+	uint8_t *frag_start = ipv6 ? ip_frame + IP6_HLEN + FRAG_HLEN :
+					ip_frame + IP4_HLEN;
+
+	if (offset == 0) {
+		struct udphdr udphdr;
+		udphdr.source = htons(cfg_port + 1);
+		udphdr.dest = htons(cfg_port);
+		udphdr.len = htons(UDP_HLEN + payload_len);
+		udphdr.check = 0;
+		if (ipv6)
+			udphdr.check = udp6_checksum((struct ip6_hdr *)ip_frame, &udphdr);
+		else
+			udphdr.check = udp_checksum((struct ip *)ip_frame, &udphdr);
+		memcpy(frag_start, &udphdr, UDP_HLEN);
+	}
+
+	if (ipv6) {
+		struct ip6_hdr *ip6hdr = (struct ip6_hdr *)ip_frame;
+		struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+		if (payload_len - payload_offset <= max_frag_len && offset > 0) {
+			/* This is the last fragment. */
+			frag_len = FRAG_HLEN + payload_len - payload_offset;
+			fraghdr->ip6f_offlg = htons(offset);
+		} else {
+			frag_len = FRAG_HLEN + max_frag_len;
+			fraghdr->ip6f_offlg = htons(offset | IP6_MF);
+		}
+		ip6hdr->ip6_plen = htons(frag_len);
+		if (offset == 0)
+			memcpy(frag_start + UDP_HLEN, udp_payload,
+				frag_len - FRAG_HLEN - UDP_HLEN);
+		else
+			memcpy(frag_start, udp_payload + payload_offset,
+				frag_len - FRAG_HLEN);
+		frag_len += IP6_HLEN;
+	} else {
+		struct ip *iphdr = (struct ip *)ip_frame;
+		if (payload_len - payload_offset <= max_frag_len && offset > 0) {
+			/* This is the last fragment. */
+			frag_len = IP4_HLEN + payload_len - payload_offset;
+			iphdr->ip_off = htons(offset / 8);
+		} else {
+			frag_len = IP4_HLEN + max_frag_len;
+			iphdr->ip_off = htons(offset / 8 | IP4_MF);
+		}
+		iphdr->ip_len = htons(frag_len);
+		if (offset == 0)
+			memcpy(frag_start + UDP_HLEN, udp_payload,
+				frag_len - IP4_HLEN - UDP_HLEN);
+		else
+			memcpy(frag_start, udp_payload + payload_offset,
+				frag_len - IP4_HLEN);
+	}
+
+	res = sendto(fd_raw, ip_frame, frag_len, 0, addr, alen);
+	if (res < 0 && errno != EPERM)
+		error(1, errno, "send_fragment");
+	if (res >= 0 && res != frag_len)
+		error(1, 0, "send_fragment: %d vs %d", res, frag_len);
+
+	frag_counter++;
+}
+
+static void send_udp_frags(int fd_raw, struct sockaddr *addr,
+				socklen_t alen, bool ipv6)
+{
+	struct ip *iphdr = (struct ip *)ip_frame;
+	struct ip6_hdr *ip6hdr = (struct ip6_hdr *)ip_frame;
+	int res;
+	int offset;
+	int frag_len;
+
+	/* Send the UDP datagram using raw IP fragments: the 0th fragment
+	 * has the UDP header; other fragments are pieces of udp_payload
+	 * split in chunks of frag_len size.
+	 *
+	 * Odd fragments (1st, 3rd, 5th, etc.) are sent out first, then
+	 * even fragments (0th, 2nd, etc.) are sent out.
+	 */
+	if (ipv6) {
+		struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+		((struct sockaddr_in6 *)addr)->sin6_port = 0;
+		memset(ip6hdr, 0, sizeof(*ip6hdr));
+		ip6hdr->ip6_flow = htonl(6<<28);  /* Version. */
+		ip6hdr->ip6_nxt = IPPROTO_FRAGMENT;
+		ip6hdr->ip6_hops = 255;
+		ip6hdr->ip6_src = addr6;
+		ip6hdr->ip6_dst = addr6;
+		fraghdr->ip6f_nxt = IPPROTO_UDP;
+		fraghdr->ip6f_reserved = 0;
+		fraghdr->ip6f_ident = htonl(ip_id++);
+	} else {
+		memset(iphdr, 0, sizeof(*iphdr));
+		iphdr->ip_hl = 5;
+		iphdr->ip_v = 4;
+		iphdr->ip_tos = 0;
+		iphdr->ip_id = htons(ip_id++);
+		iphdr->ip_ttl = 0x40;
+		iphdr->ip_p = IPPROTO_UDP;
+		iphdr->ip_src.s_addr = htonl(INADDR_LOOPBACK);
+		iphdr->ip_dst = addr4;
+		iphdr->ip_sum = 0;
+	}
+
+	/* Occasionally test in-order fragments. */
+	if (!cfg_overlap && (rand() % 100 < 15)) {
+		offset = 0;
+		while (offset < (UDP_HLEN + payload_len)) {
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+			offset += max_frag_len;
+		}
+		return;
+	}
+
+	/* Occasionally test IPv4 "runs" (see net/ipv4/ip_fragment.c) */
+	if (!cfg_overlap && (rand() % 100 < 20) &&
+			(payload_len > 9 * max_frag_len)) {
+		offset = 6 * max_frag_len;
+		while (offset < (UDP_HLEN + payload_len)) {
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+			offset += max_frag_len;
+		}
+		offset = 3 * max_frag_len;
+		while (offset < 6 * max_frag_len) {
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+			offset += max_frag_len;
+		}
+		offset = 0;
+		while (offset < 3 * max_frag_len) {
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+			offset += max_frag_len;
+		}
+		return;
+	}
+
+	/* Odd fragments. */
+	offset = max_frag_len;
+	while (offset < (UDP_HLEN + payload_len)) {
+		send_fragment(fd_raw, addr, alen, offset, ipv6);
+		/* IPv4 ignores duplicates, so randomly send a duplicate. */
+		if (rand() % 100 == 1)
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+		offset += 2 * max_frag_len;
+	}
+
+	if (cfg_overlap) {
+		/* Send an extra random fragment.
+		 *
+		 * Duplicates and some fragments completely inside
+		 * previously sent fragments are dropped/ignored. So
+		 * random offset and frag_len can result in a dropped
+		 * fragment instead of a dropped queue/packet. Thus we
+		 * hard-code offset and frag_len.
+		 */
+		if (max_frag_len * 4 < payload_len || max_frag_len < 16) {
+			/* not enough payload for random offset and frag_len. */
+			offset = 8;
+			frag_len = UDP_HLEN + max_frag_len;
+		} else {
+			offset = rand() % (payload_len / 2);
+			frag_len = 2 * max_frag_len + 1 + rand() % 256;
+		}
+		if (ipv6) {
+			struct ip6_frag *fraghdr = (struct ip6_frag *)(ip_frame + IP6_HLEN);
+			/* sendto() returns EINVAL if offset + frag_len is too small. */
+			/* In IPv6 if !!(frag_len % 8), the fragment is dropped. */
+			frag_len &= ~0x7;
+			fraghdr->ip6f_offlg = htons(offset / 8 | IP6_MF);
+			ip6hdr->ip6_plen = htons(frag_len);
+			frag_len += IP6_HLEN;
+		} else {
+			frag_len += IP4_HLEN;
+			iphdr->ip_off = htons(offset / 8 | IP4_MF);
+			iphdr->ip_len = htons(frag_len);
+		}
+		res = sendto(fd_raw, ip_frame, frag_len, 0, addr, alen);
+		if (res < 0 && errno != EPERM)
+			error(1, errno, "sendto overlap: %d", frag_len);
+		if (res >= 0 && res != frag_len)
+			error(1, 0, "sendto overlap: %d vs %d", (int)res, frag_len);
+		frag_counter++;
+	}
+
+	/* Event fragments. */
+	offset = 0;
+	while (offset < (UDP_HLEN + payload_len)) {
+		send_fragment(fd_raw, addr, alen, offset, ipv6);
+		/* IPv4 ignores duplicates, so randomly send a duplicate. */
+		if (rand() % 100 == 1)
+			send_fragment(fd_raw, addr, alen, offset, ipv6);
+		offset += 2 * max_frag_len;
+	}
+}
+
+static void run_test(struct sockaddr *addr, socklen_t alen, bool ipv6)
+{
+	int fd_tx_raw, fd_rx_udp;
+	/* Frag queue timeout is set to one second in the calling script;
+	 * socket timeout should be just a bit longer to avoid tests interfering
+	 * with each other.
+	 */
+	struct timeval tv = { .tv_sec = 1, .tv_usec = 10 };
+	int idx;
+	int min_frag_len = 8;
+
+	/* Initialize the payload. */
+	for (idx = 0; idx < MSG_LEN_MAX; ++idx)
+		udp_payload[idx] = idx % 256;
+
+	/* Open sockets. */
+	fd_tx_raw = socket(addr->sa_family, SOCK_RAW, IPPROTO_RAW);
+	if (fd_tx_raw == -1)
+		error(1, errno, "socket tx_raw");
+
+	fd_rx_udp = socket(addr->sa_family, SOCK_DGRAM, 0);
+	if (fd_rx_udp == -1)
+		error(1, errno, "socket rx_udp");
+	if (bind(fd_rx_udp, addr, alen))
+		error(1, errno, "bind");
+	/* Fail fast. */
+	if (setsockopt(fd_rx_udp, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcv timeout");
+
+	for (payload_len = min_frag_len; payload_len < MSG_LEN_MAX;
+			payload_len += (rand() % 4096)) {
+		if (cfg_verbose)
+			printf("payload_len: %d\n", payload_len);
+
+		if (cfg_overlap) {
+			/* With overlaps, one send/receive pair below takes
+			 * at least one second (== timeout) to run, so there
+			 * is not enough test time to run a nested loop:
+			 * the full overlap test takes 20-30 seconds.
+			 */
+			max_frag_len = min_frag_len +
+				rand() % (1500 - FRAG_HLEN - min_frag_len);
+			send_udp_frags(fd_tx_raw, addr, alen, ipv6);
+			recv_validate_udp(fd_rx_udp);
+		} else {
+			/* Without overlaps, each packet reassembly (== one
+			 * send/receive pair below) takes very little time to
+			 * run, so we can easily afford more thourough testing
+			 * with a nested loop: the full non-overlap test takes
+			 * less than one second).
+			 */
+			max_frag_len = min_frag_len;
+			do {
+				send_udp_frags(fd_tx_raw, addr, alen, ipv6);
+				recv_validate_udp(fd_rx_udp);
+				max_frag_len += 8 * (rand() % 8);
+			} while (max_frag_len < (1500 - FRAG_HLEN) &&
+				 max_frag_len <= payload_len);
+		}
+	}
+
+	/* Cleanup. */
+	if (close(fd_tx_raw))
+		error(1, errno, "close tx_raw");
+	if (close(fd_rx_udp))
+		error(1, errno, "close rx_udp");
+
+	if (cfg_verbose)
+		printf("processed %d messages, %d fragments\n",
+			msg_counter, frag_counter);
+
+	fprintf(stderr, "PASS\n");
+}
+
+
+static void run_test_v4(void)
+{
+	struct sockaddr_in addr = {0};
+
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(cfg_port);
+	addr.sin_addr = addr4;
+
+	run_test((void *)&addr, sizeof(addr), false /* !ipv6 */);
+}
+
+static void run_test_v6(void)
+{
+	struct sockaddr_in6 addr = {0};
+
+	addr.sin6_family = AF_INET6;
+	addr.sin6_port = htons(cfg_port);
+	addr.sin6_addr = addr6;
+
+	run_test((void *)&addr, sizeof(addr), true /* ipv6 */);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "46opv")) != -1) {
+		switch (c) {
+		case '4':
+			cfg_do_ipv4 = true;
+			break;
+		case '6':
+			cfg_do_ipv6 = true;
+			break;
+		case 'o':
+			cfg_overlap = true;
+			break;
+		case 'p':
+			cfg_permissive = true;
+			break;
+		case 'v':
+			cfg_verbose = true;
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+	seed = time(NULL);
+	srand(seed);
+	/* Print the seed to track/reproduce potential failures. */
+	printf("seed = %d\n", seed);
+
+	if (cfg_do_ipv4)
+		run_test_v4();
+	if (cfg_do_ipv6)
+		run_test_v6();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/ip_defrag.sh b/tools/testing/selftests/net/ip_defrag.sh
new file mode 100755
index 000000000000..ceb7ad4dbd94
--- /dev/null
+++ b/tools/testing/selftests/net/ip_defrag.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a couple of IP defragmentation tests.
+
+set +x
+set -e
+
+modprobe -q nf_defrag_ipv6
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+	ip netns add "${NETNS}"
+	ip -netns "${NETNS}" link set lo up
+
+	ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_high_thresh=9000000 >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_low_thresh=7000000 >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.ipv4.ipfrag_time=1 >/dev/null 2>&1
+
+	ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_high_thresh=9000000 >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_low_thresh=7000000 >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.ipv6.ip6frag_time=1 >/dev/null 2>&1
+
+	ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_high_thresh=9000000 >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_low_thresh=7000000  >/dev/null 2>&1
+	ip netns exec "${NETNS}" sysctl -w net.netfilter.nf_conntrack_frag6_timeout=1 >/dev/null 2>&1
+
+	# DST cache can get full with a lot of frags, with GC not keeping up with the test.
+	ip netns exec "${NETNS}" sysctl -w net.ipv6.route.max_size=65536 >/dev/null 2>&1
+}
+
+cleanup() {
+	ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+echo "ipv4 defrag"
+ip netns exec "${NETNS}" ./ip_defrag -4
+
+echo "ipv4 defrag with overlaps"
+ip netns exec "${NETNS}" ./ip_defrag -4o
+
+echo "ipv6 defrag"
+ip netns exec "${NETNS}" ./ip_defrag -6
+
+echo "ipv6 defrag with overlaps"
+ip netns exec "${NETNS}" ./ip_defrag -6o
+
+# insert an nf_conntrack rule so that the codepath in nf_conntrack_reasm.c taken
+ip netns exec "${NETNS}" ip6tables -A INPUT  -m conntrack --ctstate INVALID -j ACCEPT
+
+echo "ipv6 nf_conntrack defrag"
+ip netns exec "${NETNS}" ./ip_defrag -6
+
+echo "ipv6 nf_conntrack defrag with overlaps"
+# netfilter will drop some invalid packets, so we run the test in
+# permissive mode: i.e. pass the test if the packet is correctly assembled
+# even if we sent an overlap
+ip netns exec "${NETNS}" ./ip_defrag -6op
+
+echo "all tests done"
diff --git a/tools/testing/selftests/net/ip_local_port_range.c b/tools/testing/selftests/net/ip_local_port_range.c
new file mode 100644
index 000000000000..e6834a6cfc8f
--- /dev/null
+++ b/tools/testing/selftests/net/ip_local_port_range.c
@@ -0,0 +1,463 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2023 Cloudflare
+
+/* Test IP_LOCAL_PORT_RANGE socket option: IPv4 + IPv6, TCP + UDP.
+ *
+ * Tests assume that net.ipv4.ip_local_port_range is [40000, 49999].
+ * Don't run these directly but with ip_local_port_range.sh script.
+ */
+
+#include <fcntl.h>
+#include <netinet/ip.h>
+
+#include "kselftest_harness.h"
+
+#ifndef IP_LOCAL_PORT_RANGE
+#define IP_LOCAL_PORT_RANGE 51
+#endif
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+
+static __u32 pack_port_range(__u16 lo, __u16 hi)
+{
+	return (hi << 16) | (lo << 0);
+}
+
+static void unpack_port_range(__u32 range, __u16 *lo, __u16 *hi)
+{
+	*lo = range & 0xffff;
+	*hi = range >> 16;
+}
+
+static int get_so_domain(int fd)
+{
+	int domain, err;
+	socklen_t len;
+
+	len = sizeof(domain);
+	err = getsockopt(fd, SOL_SOCKET, SO_DOMAIN, &domain, &len);
+	if (err)
+		return -1;
+
+	return domain;
+}
+
+static int bind_to_loopback_any_port(int fd)
+{
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in v4;
+		struct sockaddr_in6 v6;
+	} addr;
+	socklen_t addr_len;
+
+	memset(&addr, 0, sizeof(addr));
+	switch (get_so_domain(fd)) {
+	case AF_INET:
+		addr.v4.sin_family = AF_INET;
+		addr.v4.sin_port = htons(0);
+		addr.v4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		addr_len = sizeof(addr.v4);
+		break;
+	case AF_INET6:
+		addr.v6.sin6_family = AF_INET6;
+		addr.v6.sin6_port = htons(0);
+		addr.v6.sin6_addr = in6addr_loopback;
+		addr_len = sizeof(addr.v6);
+		break;
+	default:
+		return -1;
+	}
+
+	return bind(fd, &addr.sa, addr_len);
+}
+
+static int get_sock_port(int fd)
+{
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in v4;
+		struct sockaddr_in6 v6;
+	} addr;
+	socklen_t addr_len;
+	int err;
+
+	addr_len = sizeof(addr);
+	memset(&addr, 0, sizeof(addr));
+	err = getsockname(fd, &addr.sa, &addr_len);
+	if (err)
+		return -1;
+
+	switch (addr.sa.sa_family) {
+	case AF_INET:
+		return ntohs(addr.v4.sin_port);
+	case AF_INET6:
+		return ntohs(addr.v6.sin6_port);
+	default:
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+}
+
+static int get_ip_local_port_range(int fd, __u32 *range)
+{
+	socklen_t len;
+	__u32 val;
+	int err;
+
+	len = sizeof(val);
+	err = getsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &val, &len);
+	if (err)
+		return -1;
+
+	*range = val;
+	return 0;
+}
+
+FIXTURE(ip_local_port_range) {};
+
+FIXTURE_SETUP(ip_local_port_range)
+{
+}
+
+FIXTURE_TEARDOWN(ip_local_port_range)
+{
+}
+
+FIXTURE_VARIANT(ip_local_port_range) {
+	int so_domain;
+	int so_type;
+	int so_protocol;
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_tcp) {
+	.so_domain	= AF_INET,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= 0,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_udp) {
+	.so_domain	= AF_INET,
+	.so_type	= SOCK_DGRAM,
+	.so_protocol	= 0,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_stcp) {
+	.so_domain	= AF_INET,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= IPPROTO_SCTP,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip4_mptcp) {
+	.so_domain	= AF_INET,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= IPPROTO_MPTCP,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_tcp) {
+	.so_domain	= AF_INET6,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= 0,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_udp) {
+	.so_domain	= AF_INET6,
+	.so_type	= SOCK_DGRAM,
+	.so_protocol	= 0,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_stcp) {
+	.so_domain	= AF_INET6,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= IPPROTO_SCTP,
+};
+
+FIXTURE_VARIANT_ADD(ip_local_port_range, ip6_mptcp) {
+	.so_domain	= AF_INET6,
+	.so_type	= SOCK_STREAM,
+	.so_protocol	= IPPROTO_MPTCP,
+};
+
+TEST_F(ip_local_port_range, invalid_option_value)
+{
+	__u16 val16;
+	__u32 val32;
+	__u64 val64;
+	int fd, err;
+
+	fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+	ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+	/* Too few bytes */
+	val16 = 40000;
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &val16, sizeof(val16));
+	EXPECT_TRUE(err) TH_LOG("expected setsockopt(IP_LOCAL_PORT_RANGE) to fail");
+	EXPECT_EQ(errno, EINVAL);
+
+	/* Empty range: low port > high port */
+	val32 = pack_port_range(40222, 40111);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &val32, sizeof(val32));
+	EXPECT_TRUE(err) TH_LOG("expected setsockopt(IP_LOCAL_PORT_RANGE) to fail");
+	EXPECT_EQ(errno, EINVAL);
+
+	/* Too many bytes */
+	val64 = pack_port_range(40333, 40444);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &val64, sizeof(val64));
+	EXPECT_TRUE(err) TH_LOG("expected setsockopt(IP_LOCAL_PORT_RANGE) to fail");
+	EXPECT_EQ(errno, EINVAL);
+
+	err = close(fd);
+	ASSERT_TRUE(!err) TH_LOG("close failed");
+}
+
+TEST_F(ip_local_port_range, port_range_out_of_netns_range)
+{
+	const struct test {
+		__u16 range_lo;
+		__u16 range_hi;
+	} tests[] = {
+		{ 30000, 39999 }, /* socket range below netns range */
+		{ 50000, 59999 }, /* socket range above netns range */
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		/* Bind a couple of sockets, not just one, to check
+		 * that the range wasn't clamped to a single port from
+		 * the netns range. That is [40000, 40000] or [49999,
+		 * 49999], respectively for each test case.
+		 */
+		int fds[2], i;
+
+		TH_LOG("lo %5hu, hi %5hu", t->range_lo, t->range_hi);
+
+		for (i = 0; i < ARRAY_SIZE(fds); i++) {
+			int fd, err, port;
+			__u32 range;
+
+			fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+			ASSERT_GE(fd, 0) TH_LOG("#%d: socket failed", i);
+
+			range = pack_port_range(t->range_lo, t->range_hi);
+			err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+			ASSERT_TRUE(!err) TH_LOG("#%d: setsockopt(IP_LOCAL_PORT_RANGE) failed", i);
+
+			err = bind_to_loopback_any_port(fd);
+			ASSERT_TRUE(!err) TH_LOG("#%d: bind failed", i);
+
+			/* Check that socket port range outside of ephemeral range is ignored */
+			port = get_sock_port(fd);
+			ASSERT_GE(port, 40000) TH_LOG("#%d: expected port within netns range", i);
+			ASSERT_LE(port, 49999) TH_LOG("#%d: expected port within netns range", i);
+
+			fds[i] = fd;
+		}
+
+		for (i = 0; i < ARRAY_SIZE(fds); i++)
+			ASSERT_TRUE(close(fds[i]) == 0) TH_LOG("#%d: close failed", i);
+	}
+}
+
+TEST_F(ip_local_port_range, single_port_range)
+{
+	const struct test {
+		__u16 range_lo;
+		__u16 range_hi;
+		__u16 expected;
+	} tests[] = {
+		/* single port range within ephemeral range */
+		{ 45000, 45000, 45000 },
+		/* first port in the ephemeral range (clamp from above) */
+		{ 0, 40000, 40000 },
+		/* last port in the ephemeral range (clamp from below)  */
+		{ 49999, 0, 49999 },
+	};
+	const struct test *t;
+
+	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
+		int fd, err, port;
+		__u32 range;
+
+		TH_LOG("lo %5hu, hi %5hu, expected %5hu",
+		       t->range_lo, t->range_hi, t->expected);
+
+		fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+		ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+		range = pack_port_range(t->range_lo, t->range_hi);
+		err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+		ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+		err = bind_to_loopback_any_port(fd);
+		ASSERT_TRUE(!err) TH_LOG("bind failed");
+
+		port = get_sock_port(fd);
+		ASSERT_EQ(port, t->expected) TH_LOG("unexpected local port");
+
+		err = close(fd);
+		ASSERT_TRUE(!err) TH_LOG("close failed");
+	}
+}
+
+TEST_F(ip_local_port_range, exhaust_8_port_range)
+{
+	__u8 port_set = 0;
+	int i, fd, err;
+	__u32 range;
+	__u16 port;
+	int fds[8];
+
+	for (i = 0; i < ARRAY_SIZE(fds); i++) {
+		fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+		ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+		range = pack_port_range(40000, 40007);
+		err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+		ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+		err = bind_to_loopback_any_port(fd);
+		ASSERT_TRUE(!err) TH_LOG("bind failed");
+
+		port = get_sock_port(fd);
+		ASSERT_GE(port, 40000) TH_LOG("expected port within sockopt range");
+		ASSERT_LE(port, 40007) TH_LOG("expected port within sockopt range");
+
+		port_set |= 1 << (port - 40000);
+		fds[i] = fd;
+	}
+
+	/* Check that all every port from the test range is in use */
+	ASSERT_EQ(port_set, 0xff) TH_LOG("expected all ports to be busy");
+
+	/* Check that bind() fails because the whole range is busy */
+	fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+	ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+	range = pack_port_range(40000, 40007);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+	ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	err = bind_to_loopback_any_port(fd);
+	ASSERT_TRUE(err) TH_LOG("expected bind to fail");
+	ASSERT_EQ(errno, EADDRINUSE);
+
+	err = close(fd);
+	ASSERT_TRUE(!err) TH_LOG("close failed");
+
+	for (i = 0; i < ARRAY_SIZE(fds); i++) {
+		err = close(fds[i]);
+		ASSERT_TRUE(!err) TH_LOG("close failed");
+	}
+}
+
+TEST_F(ip_local_port_range, late_bind)
+{
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in v4;
+		struct sockaddr_in6 v6;
+	} addr;
+	socklen_t addr_len = 0;
+	const int one = 1;
+	int fd, err;
+	__u32 range;
+	__u16 port;
+
+	fd = socket(variant->so_domain, variant->so_type, 0);
+	ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+	range = pack_port_range(40100, 40199);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+	ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	err = setsockopt(fd, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &one, sizeof(one));
+	ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_BIND_ADDRESS_NO_PORT) failed");
+
+	err = bind_to_loopback_any_port(fd);
+	ASSERT_TRUE(!err) TH_LOG("bind failed");
+
+	port = get_sock_port(fd);
+	ASSERT_EQ(port, 0) TH_LOG("getsockname failed");
+
+	/* Invalid destination */
+	memset(&addr, 0, sizeof(addr));
+	switch (variant->so_domain) {
+	case AF_INET:
+		addr.v4.sin_family = AF_INET;
+		addr.v4.sin_port = htons(0);
+		addr.v4.sin_addr.s_addr = htonl(INADDR_ANY);
+		addr_len = sizeof(addr.v4);
+		break;
+	case AF_INET6:
+		addr.v6.sin6_family = AF_INET6;
+		addr.v6.sin6_port = htons(0);
+		addr.v6.sin6_addr = in6addr_any;
+		addr_len = sizeof(addr.v6);
+		break;
+	default:
+		ASSERT_TRUE(false) TH_LOG("unsupported socket domain");
+	}
+
+	/* connect() doesn't need to succeed for late bind to happen */
+	connect(fd, &addr.sa, addr_len);
+
+	port = get_sock_port(fd);
+	ASSERT_GE(port, 40100);
+	ASSERT_LE(port, 40199);
+
+	err = close(fd);
+	ASSERT_TRUE(!err) TH_LOG("close failed");
+}
+
+XFAIL_ADD(ip_local_port_range, ip4_stcp, late_bind);
+XFAIL_ADD(ip_local_port_range, ip6_stcp, late_bind);
+
+TEST_F(ip_local_port_range, get_port_range)
+{
+	__u16 lo, hi;
+	__u32 range;
+	int fd, err;
+
+	fd = socket(variant->so_domain, variant->so_type, variant->so_protocol);
+	ASSERT_GE(fd, 0) TH_LOG("socket failed");
+
+	/* Get range before it will be set */
+	err = get_ip_local_port_range(fd, &range);
+	ASSERT_TRUE(!err) TH_LOG("getsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	unpack_port_range(range, &lo, &hi);
+	ASSERT_EQ(lo, 0) TH_LOG("unexpected low port");
+	ASSERT_EQ(hi, 0) TH_LOG("unexpected high port");
+
+	range = pack_port_range(12345, 54321);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+	ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	/* Get range after it has been set */
+	err = get_ip_local_port_range(fd, &range);
+	ASSERT_TRUE(!err) TH_LOG("getsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	unpack_port_range(range, &lo, &hi);
+	ASSERT_EQ(lo, 12345) TH_LOG("unexpected low port");
+	ASSERT_EQ(hi, 54321) TH_LOG("unexpected high port");
+
+	/* Unset the port range  */
+	range = pack_port_range(0, 0);
+	err = setsockopt(fd, SOL_IP, IP_LOCAL_PORT_RANGE, &range, sizeof(range));
+	ASSERT_TRUE(!err) TH_LOG("setsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	/* Get range after it has been unset */
+	err = get_ip_local_port_range(fd, &range);
+	ASSERT_TRUE(!err) TH_LOG("getsockopt(IP_LOCAL_PORT_RANGE) failed");
+
+	unpack_port_range(range, &lo, &hi);
+	ASSERT_EQ(lo, 0) TH_LOG("unexpected low port");
+	ASSERT_EQ(hi, 0) TH_LOG("unexpected high port");
+
+	err = close(fd);
+	ASSERT_TRUE(!err) TH_LOG("close failed");
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/ip_local_port_range.sh b/tools/testing/selftests/net/ip_local_port_range.sh
new file mode 100755
index 000000000000..4ff746db1256
--- /dev/null
+++ b/tools/testing/selftests/net/ip_local_port_range.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.mptcp.enabled=1 && \
+         sysctl -q -w net.ipv4.ip_local_port_range="40000 49999" && \
+         ./ip_local_port_range'
diff --git a/tools/testing/selftests/net/ipsec.c b/tools/testing/selftests/net/ipsec.c
new file mode 100644
index 000000000000..0ccf484b1d9d
--- /dev/null
+++ b/tools/testing/selftests/net/ipsec.c
@@ -0,0 +1,2342 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * ipsec.c - Check xfrm on veth inside a net-ns.
+ * Copyright (c) 2018 Dmitry Safonov
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/types.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/limits.h>
+#include <linux/netlink.h>
+#include <linux/random.h>
+#include <linux/rtnetlink.h>
+#include <linux/veth.h>
+#include <linux/xfrm.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#define printk(fmt, ...)						\
+	ksft_print_msg("%d[%u] " fmt "\n", getpid(), __LINE__, ##__VA_ARGS__)
+
+#define pr_err(fmt, ...)	printk(fmt ": %m", ##__VA_ARGS__)
+
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+
+#define IPV4_STR_SZ	16	/* xxx.xxx.xxx.xxx is longest + \0 */
+#define MAX_PAYLOAD	2048
+#define XFRM_ALGO_KEY_BUF_SIZE	512
+#define MAX_PROCESSES	(1 << 14) /* /16 mask divided by /30 subnets */
+#define INADDR_A	((in_addr_t) 0x0a000000) /* 10.0.0.0 */
+#define INADDR_B	((in_addr_t) 0xc0a80000) /* 192.168.0.0 */
+
+/* /30 mask for one veth connection */
+#define PREFIX_LEN	30
+#define child_ip(nr)	(4*nr + 1)
+#define grchild_ip(nr)	(4*nr + 2)
+
+#define VETH_FMT	"ktst-%d"
+#define VETH_LEN	12
+
+#define XFRM_ALGO_NR_KEYS 29
+
+static int nsfd_parent	= -1;
+static int nsfd_childa	= -1;
+static int nsfd_childb	= -1;
+static long page_size;
+
+/*
+ * ksft_cnt is static in kselftest, so isn't shared with children.
+ * We have to send a test result back to parent and count there.
+ * results_fd is a pipe with test feedback from children.
+ */
+static int results_fd[2];
+
+const unsigned int ping_delay_nsec	= 50 * 1000 * 1000;
+const unsigned int ping_timeout		= 300;
+const unsigned int ping_count		= 100;
+const unsigned int ping_success		= 80;
+
+struct xfrm_key_entry {
+	char algo_name[35];
+	int key_len;
+};
+
+struct xfrm_key_entry xfrm_key_entries[] = {
+	{"digest_null", 0},
+	{"ecb(cipher_null)", 0},
+	{"cbc(des)", 64},
+	{"hmac(md5)", 128},
+	{"cmac(aes)", 128},
+	{"xcbc(aes)", 128},
+	{"cbc(cast5)", 128},
+	{"cbc(serpent)", 128},
+	{"hmac(sha1)", 160},
+	{"hmac(rmd160)", 160},
+	{"cbc(des3_ede)", 192},
+	{"hmac(sha256)", 256},
+	{"cbc(aes)", 256},
+	{"cbc(camellia)", 256},
+	{"cbc(twofish)", 256},
+	{"rfc3686(ctr(aes))", 288},
+	{"hmac(sha384)", 384},
+	{"cbc(blowfish)", 448},
+	{"hmac(sha512)", 512},
+	{"rfc4106(gcm(aes))-128", 160},
+	{"rfc4543(gcm(aes))-128", 160},
+	{"rfc4309(ccm(aes))-128", 152},
+	{"rfc4106(gcm(aes))-192", 224},
+	{"rfc4543(gcm(aes))-192", 224},
+	{"rfc4309(ccm(aes))-192", 216},
+	{"rfc4106(gcm(aes))-256", 288},
+	{"rfc4543(gcm(aes))-256", 288},
+	{"rfc4309(ccm(aes))-256", 280},
+	{"rfc7539(chacha20,poly1305)-128", 0}
+};
+
+static void randomize_buffer(void *buf, size_t buflen)
+{
+	int *p = (int *)buf;
+	size_t words = buflen / sizeof(int);
+	size_t leftover = buflen % sizeof(int);
+
+	if (!buflen)
+		return;
+
+	while (words--)
+		*p++ = rand();
+
+	if (leftover) {
+		int tmp = rand();
+
+		memcpy(buf + buflen - leftover, &tmp, leftover);
+	}
+
+	return;
+}
+
+static int unshare_open(void)
+{
+	const char *netns_path = "/proc/self/ns/net";
+	int fd;
+
+	if (unshare(CLONE_NEWNET) != 0) {
+		pr_err("unshare()");
+		return -1;
+	}
+
+	fd = open(netns_path, O_RDONLY);
+	if (fd <= 0) {
+		pr_err("open(%s)", netns_path);
+		return -1;
+	}
+
+	return fd;
+}
+
+static int switch_ns(int fd)
+{
+	if (setns(fd, CLONE_NEWNET)) {
+		pr_err("setns()");
+		return -1;
+	}
+	return 0;
+}
+
+/*
+ * Running the test inside a new parent net namespace to bother less
+ * about cleanup on error-path.
+ */
+static int init_namespaces(void)
+{
+	nsfd_parent = unshare_open();
+	if (nsfd_parent <= 0)
+		return -1;
+
+	nsfd_childa = unshare_open();
+	if (nsfd_childa <= 0)
+		return -1;
+
+	if (switch_ns(nsfd_parent))
+		return -1;
+
+	nsfd_childb = unshare_open();
+	if (nsfd_childb <= 0)
+		return -1;
+
+	if (switch_ns(nsfd_parent))
+		return -1;
+	return 0;
+}
+
+static int netlink_sock(int *sock, uint32_t *seq_nr, int proto)
+{
+	if (*sock > 0) {
+		seq_nr++;
+		return 0;
+	}
+
+	*sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, proto);
+	if (*sock <= 0) {
+		pr_err("socket(AF_NETLINK)");
+		return -1;
+	}
+
+	randomize_buffer(seq_nr, sizeof(*seq_nr));
+
+	return 0;
+}
+
+static inline struct rtattr *rtattr_hdr(struct nlmsghdr *nh)
+{
+	return (struct rtattr *)((char *)(nh) + RTA_ALIGN((nh)->nlmsg_len));
+}
+
+static int rtattr_pack(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type, const void *payload, size_t size)
+{
+	/* NLMSG_ALIGNTO == RTA_ALIGNTO, nlmsg_len already aligned */
+	struct rtattr *attr = rtattr_hdr(nh);
+	size_t nl_size = RTA_ALIGN(nh->nlmsg_len) + RTA_LENGTH(size);
+
+	if (req_sz < nl_size) {
+		printk("req buf is too small: %zu < %zu", req_sz, nl_size);
+		return -1;
+	}
+	nh->nlmsg_len = nl_size;
+
+	attr->rta_len = RTA_LENGTH(size);
+	attr->rta_type = rta_type;
+	if (payload)
+		memcpy(RTA_DATA(attr), payload, size);
+
+	return 0;
+}
+
+static struct rtattr *_rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type, const void *payload, size_t size)
+{
+	struct rtattr *ret = rtattr_hdr(nh);
+
+	if (rtattr_pack(nh, req_sz, rta_type, payload, size))
+		return 0;
+
+	return ret;
+}
+
+static inline struct rtattr *rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type)
+{
+	return _rtattr_begin(nh, req_sz, rta_type, 0, 0);
+}
+
+static inline void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)
+{
+	char *nlmsg_end = (char *)nh + nh->nlmsg_len;
+
+	attr->rta_len = nlmsg_end - (char *)attr;
+}
+
+static int veth_pack_peerb(struct nlmsghdr *nh, size_t req_sz,
+		const char *peer, int ns)
+{
+	struct ifinfomsg pi;
+	struct rtattr *peer_attr;
+
+	memset(&pi, 0, sizeof(pi));
+	pi.ifi_family	= AF_UNSPEC;
+	pi.ifi_change	= 0xFFFFFFFF;
+
+	peer_attr = _rtattr_begin(nh, req_sz, VETH_INFO_PEER, &pi, sizeof(pi));
+	if (!peer_attr)
+		return -1;
+
+	if (rtattr_pack(nh, req_sz, IFLA_IFNAME, peer, strlen(peer)))
+		return -1;
+
+	if (rtattr_pack(nh, req_sz, IFLA_NET_NS_FD, &ns, sizeof(ns)))
+		return -1;
+
+	rtattr_end(nh, peer_attr);
+
+	return 0;
+}
+
+static int netlink_check_answer(int sock)
+{
+	struct nlmsgerror {
+		struct nlmsghdr hdr;
+		int error;
+		struct nlmsghdr orig_msg;
+	} answer;
+
+	if (recv(sock, &answer, sizeof(answer), 0) < 0) {
+		pr_err("recv()");
+		return -1;
+	} else if (answer.hdr.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)answer.hdr.nlmsg_type);
+		return -1;
+	} else if (answer.error) {
+		printk("NLMSG_ERROR: %d: %s",
+			answer.error, strerror(-answer.error));
+		return answer.error;
+	}
+
+	return 0;
+}
+
+static int veth_add(int sock, uint32_t seq, const char *peera, int ns_a,
+		const char *peerb, int ns_b)
+{
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+	struct {
+		struct nlmsghdr		nh;
+		struct ifinfomsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	const char veth_type[] = "veth";
+	struct rtattr *link_info, *info_data;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWLINK;
+	req.nh.nlmsg_flags	= flags;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifi_family	= AF_UNSPEC;
+	req.info.ifi_change	= 0xFFFFFFFF;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, peera, strlen(peera)))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD, &ns_a, sizeof(ns_a)))
+		return -1;
+
+	link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);
+	if (!link_info)
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, veth_type, sizeof(veth_type)))
+		return -1;
+
+	info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);
+	if (!info_data)
+		return -1;
+
+	if (veth_pack_peerb(&req.nh, sizeof(req), peerb, ns_b))
+		return -1;
+
+	rtattr_end(&req.nh, info_data);
+	rtattr_end(&req.nh, link_info);
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock);
+}
+
+static int ip4_addr_set(int sock, uint32_t seq, const char *intf,
+		struct in_addr addr, uint8_t prefix)
+{
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+	struct {
+		struct nlmsghdr		nh;
+		struct ifaddrmsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWADDR;
+	req.nh.nlmsg_flags	= flags;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifa_family	= AF_INET;
+	req.info.ifa_prefixlen	= prefix;
+	req.info.ifa_index	= if_nametoindex(intf);
+
+#ifdef DEBUG
+	{
+		char addr_str[IPV4_STR_SZ] = {};
+
+		strncpy(addr_str, inet_ntoa(addr), IPV4_STR_SZ - 1);
+
+		printk("ip addr set %s", addr_str);
+	}
+#endif
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFA_LOCAL, &addr, sizeof(addr)))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFA_ADDRESS, &addr, sizeof(addr)))
+		return -1;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock);
+}
+
+static int link_set_up(int sock, uint32_t seq, const char *intf)
+{
+	struct {
+		struct nlmsghdr		nh;
+		struct ifinfomsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWLINK;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifi_family	= AF_UNSPEC;
+	req.info.ifi_change	= 0xFFFFFFFF;
+	req.info.ifi_index	= if_nametoindex(intf);
+	req.info.ifi_flags	= IFF_UP;
+	req.info.ifi_change	= IFF_UP;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock);
+}
+
+static int ip4_route_set(int sock, uint32_t seq, const char *intf,
+		struct in_addr src, struct in_addr dst)
+{
+	struct {
+		struct nlmsghdr	nh;
+		struct rtmsg	rt;
+		char		attrbuf[MAX_PAYLOAD];
+	} req;
+	unsigned int index = if_nametoindex(intf);
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.rt));
+	req.nh.nlmsg_type	= RTM_NEWROUTE;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE;
+	req.nh.nlmsg_seq	= seq;
+	req.rt.rtm_family	= AF_INET;
+	req.rt.rtm_dst_len	= 32;
+	req.rt.rtm_table	= RT_TABLE_MAIN;
+	req.rt.rtm_protocol	= RTPROT_BOOT;
+	req.rt.rtm_scope	= RT_SCOPE_LINK;
+	req.rt.rtm_type		= RTN_UNICAST;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_DST, &dst, sizeof(dst)))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_PREFSRC, &src, sizeof(src)))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_OIF, &index, sizeof(index)))
+		return -1;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(sock);
+}
+
+static int tunnel_set_route(int route_sock, uint32_t *route_seq, char *veth,
+		struct in_addr tunsrc, struct in_addr tundst)
+{
+	if (ip4_addr_set(route_sock, (*route_seq)++, "lo",
+			tunsrc, PREFIX_LEN)) {
+		printk("Failed to set ipv4 addr");
+		return -1;
+	}
+
+	if (ip4_route_set(route_sock, (*route_seq)++, veth, tunsrc, tundst)) {
+		printk("Failed to set ipv4 route");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int init_child(int nsfd, char *veth, unsigned int src, unsigned int dst)
+{
+	struct in_addr intsrc = inet_makeaddr(INADDR_B, src);
+	struct in_addr tunsrc = inet_makeaddr(INADDR_A, src);
+	struct in_addr tundst = inet_makeaddr(INADDR_A, dst);
+	int route_sock = -1, ret = -1;
+	uint32_t route_seq;
+
+	if (switch_ns(nsfd))
+		return -1;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE)) {
+		printk("Failed to open netlink route socket in child");
+		return -1;
+	}
+
+	if (ip4_addr_set(route_sock, route_seq++, veth, intsrc, PREFIX_LEN)) {
+		printk("Failed to set ipv4 addr");
+		goto err;
+	}
+
+	if (link_set_up(route_sock, route_seq++, veth)) {
+		printk("Failed to bring up %s", veth);
+		goto err;
+	}
+
+	if (tunnel_set_route(route_sock, &route_seq, veth, tunsrc, tundst)) {
+		printk("Failed to add tunnel route on %s", veth);
+		goto err;
+	}
+	ret = 0;
+
+err:
+	close(route_sock);
+	return ret;
+}
+
+#define ALGO_LEN	64
+enum desc_type {
+	CREATE_TUNNEL	= 0,
+	ALLOCATE_SPI,
+	MONITOR_ACQUIRE,
+	EXPIRE_STATE,
+	EXPIRE_POLICY,
+	SPDINFO_ATTRS,
+};
+const char *desc_name[] = {
+	"create tunnel",
+	"alloc spi",
+	"monitor acquire",
+	"expire state",
+	"expire policy",
+	"spdinfo attributes",
+	""
+};
+struct xfrm_desc {
+	enum desc_type	type;
+	uint8_t		proto;
+	char		a_algo[ALGO_LEN];
+	char		e_algo[ALGO_LEN];
+	char		c_algo[ALGO_LEN];
+	char		ae_algo[ALGO_LEN];
+	unsigned int	icv_len;
+	/* unsigned key_len; */
+};
+
+enum msg_type {
+	MSG_ACK		= 0,
+	MSG_EXIT,
+	MSG_PING,
+	MSG_XFRM_PREPARE,
+	MSG_XFRM_ADD,
+	MSG_XFRM_DEL,
+	MSG_XFRM_CLEANUP,
+};
+
+struct test_desc {
+	enum msg_type type;
+	union {
+		struct {
+			in_addr_t reply_ip;
+			unsigned int port;
+		} ping;
+		struct xfrm_desc xfrm_desc;
+	} body;
+};
+
+struct test_result {
+	struct xfrm_desc desc;
+	unsigned int res;
+};
+
+static void write_test_result(unsigned int res, struct xfrm_desc *d)
+{
+	struct test_result tr = {};
+	ssize_t ret;
+
+	tr.desc = *d;
+	tr.res = res;
+
+	ret = write(results_fd[1], &tr, sizeof(tr));
+	if (ret != sizeof(tr))
+		pr_err("Failed to write the result in pipe %zd", ret);
+}
+
+static void write_msg(int fd, struct test_desc *msg, bool exit_of_fail)
+{
+	ssize_t bytes = write(fd, msg, sizeof(*msg));
+
+	/* Make sure that write/read is atomic to a pipe */
+	BUILD_BUG_ON(sizeof(struct test_desc) > PIPE_BUF);
+
+	if (bytes < 0) {
+		pr_err("write()");
+		if (exit_of_fail)
+			exit(KSFT_FAIL);
+	}
+	if (bytes != sizeof(*msg)) {
+		pr_err("sent part of the message %zd/%zu", bytes, sizeof(*msg));
+		if (exit_of_fail)
+			exit(KSFT_FAIL);
+	}
+}
+
+static void read_msg(int fd, struct test_desc *msg, bool exit_of_fail)
+{
+	ssize_t bytes = read(fd, msg, sizeof(*msg));
+
+	if (bytes < 0) {
+		pr_err("read()");
+		if (exit_of_fail)
+			exit(KSFT_FAIL);
+	}
+	if (bytes != sizeof(*msg)) {
+		pr_err("got incomplete message %zd/%zu", bytes, sizeof(*msg));
+		if (exit_of_fail)
+			exit(KSFT_FAIL);
+	}
+}
+
+static int udp_ping_init(struct in_addr listen_ip, unsigned int u_timeout,
+		unsigned int *server_port, int sock[2])
+{
+	struct sockaddr_in server;
+	struct timeval t = { .tv_sec = 0, .tv_usec = u_timeout };
+	socklen_t s_len = sizeof(server);
+
+	sock[0] = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock[0] < 0) {
+		pr_err("socket()");
+		return -1;
+	}
+
+	server.sin_family	= AF_INET;
+	server.sin_port		= 0;
+	memcpy(&server.sin_addr.s_addr, &listen_ip, sizeof(struct in_addr));
+
+	if (bind(sock[0], (struct sockaddr *)&server, s_len)) {
+		pr_err("bind()");
+		goto err_close_server;
+	}
+
+	if (getsockname(sock[0], (struct sockaddr *)&server, &s_len)) {
+		pr_err("getsockname()");
+		goto err_close_server;
+	}
+
+	*server_port = ntohs(server.sin_port);
+
+	if (setsockopt(sock[0], SOL_SOCKET, SO_RCVTIMEO, (const char *)&t, sizeof t)) {
+		pr_err("setsockopt()");
+		goto err_close_server;
+	}
+
+	sock[1] = socket(AF_INET, SOCK_DGRAM, 0);
+	if (sock[1] < 0) {
+		pr_err("socket()");
+		goto err_close_server;
+	}
+
+	return 0;
+
+err_close_server:
+	close(sock[0]);
+	return -1;
+}
+
+static int udp_ping_send(int sock[2], in_addr_t dest_ip, unsigned int port,
+		char *buf, size_t buf_len)
+{
+	struct sockaddr_in server;
+	const struct sockaddr *dest_addr = (struct sockaddr *)&server;
+	char *sock_buf[buf_len];
+	ssize_t r_bytes, s_bytes;
+
+	server.sin_family	= AF_INET;
+	server.sin_port		= htons(port);
+	server.sin_addr.s_addr	= dest_ip;
+
+	s_bytes = sendto(sock[1], buf, buf_len, 0, dest_addr, sizeof(server));
+	if (s_bytes < 0) {
+		pr_err("sendto()");
+		return -1;
+	} else if (s_bytes != buf_len) {
+		printk("send part of the message: %zd/%zu", s_bytes, sizeof(server));
+		return -1;
+	}
+
+	r_bytes = recv(sock[0], sock_buf, buf_len, 0);
+	if (r_bytes < 0) {
+		if (errno != EAGAIN)
+			pr_err("recv()");
+		return -1;
+	} else if (r_bytes == 0) { /* EOF */
+		printk("EOF on reply to ping");
+		return -1;
+	} else if (r_bytes != buf_len || memcmp(buf, sock_buf, buf_len)) {
+		printk("ping reply packet is corrupted %zd/%zu", r_bytes, buf_len);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int udp_ping_reply(int sock[2], in_addr_t dest_ip, unsigned int port,
+		char *buf, size_t buf_len)
+{
+	struct sockaddr_in server;
+	const struct sockaddr *dest_addr = (struct sockaddr *)&server;
+	char *sock_buf[buf_len];
+	ssize_t r_bytes, s_bytes;
+
+	server.sin_family	= AF_INET;
+	server.sin_port		= htons(port);
+	server.sin_addr.s_addr	= dest_ip;
+
+	r_bytes = recv(sock[0], sock_buf, buf_len, 0);
+	if (r_bytes < 0) {
+		if (errno != EAGAIN)
+			pr_err("recv()");
+		return -1;
+	}
+	if (r_bytes == 0) { /* EOF */
+		printk("EOF on reply to ping");
+		return -1;
+	}
+	if (r_bytes != buf_len || memcmp(buf, sock_buf, buf_len)) {
+		printk("ping reply packet is corrupted %zd/%zu", r_bytes, buf_len);
+		return -1;
+	}
+
+	s_bytes = sendto(sock[1], buf, buf_len, 0, dest_addr, sizeof(server));
+	if (s_bytes < 0) {
+		pr_err("sendto()");
+		return -1;
+	} else if (s_bytes != buf_len) {
+		printk("send part of the message: %zd/%zu", s_bytes, sizeof(server));
+		return -1;
+	}
+
+	return 0;
+}
+
+typedef int (*ping_f)(int sock[2], in_addr_t dest_ip, unsigned int port,
+		char *buf, size_t buf_len);
+static int do_ping(int cmd_fd, char *buf, size_t buf_len, struct in_addr from,
+		bool init_side, int d_port, in_addr_t to, ping_f func)
+{
+	struct test_desc msg;
+	unsigned int s_port, i, ping_succeeded = 0;
+	int ping_sock[2];
+	char to_str[IPV4_STR_SZ] = {}, from_str[IPV4_STR_SZ] = {};
+
+	if (udp_ping_init(from, ping_timeout, &s_port, ping_sock)) {
+		printk("Failed to init ping");
+		return -1;
+	}
+
+	memset(&msg, 0, sizeof(msg));
+	msg.type		= MSG_PING;
+	msg.body.ping.port	= s_port;
+	memcpy(&msg.body.ping.reply_ip, &from, sizeof(from));
+
+	write_msg(cmd_fd, &msg, 0);
+	if (init_side) {
+		/* The other end sends ip to ping */
+		read_msg(cmd_fd, &msg, 0);
+		if (msg.type != MSG_PING)
+			return -1;
+		to = msg.body.ping.reply_ip;
+		d_port = msg.body.ping.port;
+	}
+
+	for (i = 0; i < ping_count ; i++) {
+		struct timespec sleep_time = {
+			.tv_sec = 0,
+			.tv_nsec = ping_delay_nsec,
+		};
+
+		ping_succeeded += !func(ping_sock, to, d_port, buf, page_size);
+		nanosleep(&sleep_time, 0);
+	}
+
+	close(ping_sock[0]);
+	close(ping_sock[1]);
+
+	strncpy(to_str, inet_ntoa(*(struct in_addr *)&to), IPV4_STR_SZ - 1);
+	strncpy(from_str, inet_ntoa(from), IPV4_STR_SZ - 1);
+
+	if (ping_succeeded < ping_success) {
+		printk("ping (%s) %s->%s failed %u/%u times",
+			init_side ? "send" : "reply", from_str, to_str,
+			ping_count - ping_succeeded, ping_count);
+		return -1;
+	}
+
+#ifdef DEBUG
+	printk("ping (%s) %s->%s succeeded %u/%u times",
+		init_side ? "send" : "reply", from_str, to_str,
+		ping_succeeded, ping_count);
+#endif
+
+	return 0;
+}
+
+static int xfrm_fill_key(char *name, char *buf,
+		size_t buf_len, unsigned int *key_len)
+{
+	int i;
+
+	for (i = 0; i < XFRM_ALGO_NR_KEYS; i++) {
+		if (strncmp(name, xfrm_key_entries[i].algo_name, ALGO_LEN) == 0)
+			*key_len = xfrm_key_entries[i].key_len;
+	}
+
+	if (*key_len > buf_len) {
+		printk("Can't pack a key - too big for buffer");
+		return -1;
+	}
+
+	randomize_buffer(buf, *key_len);
+
+	return 0;
+}
+
+static int xfrm_state_pack_algo(struct nlmsghdr *nh, size_t req_sz,
+		struct xfrm_desc *desc)
+{
+	struct {
+		union {
+			struct xfrm_algo	alg;
+			struct xfrm_algo_aead	aead;
+			struct xfrm_algo_auth	auth;
+		} u;
+		char buf[XFRM_ALGO_KEY_BUF_SIZE];
+	} alg = {};
+	size_t alen, elen, clen, aelen;
+	unsigned short type;
+
+	alen = strlen(desc->a_algo);
+	elen = strlen(desc->e_algo);
+	clen = strlen(desc->c_algo);
+	aelen = strlen(desc->ae_algo);
+
+	/* Verify desc */
+	switch (desc->proto) {
+	case IPPROTO_AH:
+		if (!alen || elen || clen || aelen) {
+			printk("BUG: buggy ah desc");
+			return -1;
+		}
+		strncpy(alg.u.alg.alg_name, desc->a_algo, ALGO_LEN - 1);
+		if (xfrm_fill_key(desc->a_algo, alg.u.alg.alg_key,
+				sizeof(alg.buf), &alg.u.alg.alg_key_len))
+			return -1;
+		type = XFRMA_ALG_AUTH;
+		break;
+	case IPPROTO_COMP:
+		if (!clen || elen || alen || aelen) {
+			printk("BUG: buggy comp desc");
+			return -1;
+		}
+		strncpy(alg.u.alg.alg_name, desc->c_algo, ALGO_LEN - 1);
+		if (xfrm_fill_key(desc->c_algo, alg.u.alg.alg_key,
+				sizeof(alg.buf), &alg.u.alg.alg_key_len))
+			return -1;
+		type = XFRMA_ALG_COMP;
+		break;
+	case IPPROTO_ESP:
+		if (!((alen && elen) ^ aelen) || clen) {
+			printk("BUG: buggy esp desc");
+			return -1;
+		}
+		if (aelen) {
+			alg.u.aead.alg_icv_len = desc->icv_len;
+			strncpy(alg.u.aead.alg_name, desc->ae_algo, ALGO_LEN - 1);
+			if (xfrm_fill_key(desc->ae_algo, alg.u.aead.alg_key,
+						sizeof(alg.buf), &alg.u.aead.alg_key_len))
+				return -1;
+			type = XFRMA_ALG_AEAD;
+		} else {
+
+			strncpy(alg.u.alg.alg_name, desc->e_algo, ALGO_LEN - 1);
+			type = XFRMA_ALG_CRYPT;
+			if (xfrm_fill_key(desc->e_algo, alg.u.alg.alg_key,
+						sizeof(alg.buf), &alg.u.alg.alg_key_len))
+				return -1;
+			if (rtattr_pack(nh, req_sz, type, &alg, sizeof(alg)))
+				return -1;
+
+			strncpy(alg.u.alg.alg_name, desc->a_algo, ALGO_LEN);
+			type = XFRMA_ALG_AUTH;
+			if (xfrm_fill_key(desc->a_algo, alg.u.alg.alg_key,
+						sizeof(alg.buf), &alg.u.alg.alg_key_len))
+				return -1;
+		}
+		break;
+	default:
+		printk("BUG: unknown proto in desc");
+		return -1;
+	}
+
+	if (rtattr_pack(nh, req_sz, type, &alg, sizeof(alg)))
+		return -1;
+
+	return 0;
+}
+
+static inline uint32_t gen_spi(struct in_addr src)
+{
+	return htonl(inet_lnaof(src));
+}
+
+static int xfrm_state_add(int xfrm_sock, uint32_t seq, uint32_t spi,
+		struct in_addr src, struct in_addr dst,
+		struct xfrm_desc *desc)
+{
+	struct {
+		struct nlmsghdr		nh;
+		struct xfrm_usersa_info	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= XFRM_MSG_NEWSA;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+
+	/* Fill selector. */
+	memcpy(&req.info.sel.daddr, &dst, sizeof(dst));
+	memcpy(&req.info.sel.saddr, &src, sizeof(src));
+	req.info.sel.family		= AF_INET;
+	req.info.sel.prefixlen_d	= PREFIX_LEN;
+	req.info.sel.prefixlen_s	= PREFIX_LEN;
+
+	/* Fill id */
+	memcpy(&req.info.id.daddr, &dst, sizeof(dst));
+	/* Note: zero-spi cannot be deleted */
+	req.info.id.spi = spi;
+	req.info.id.proto	= desc->proto;
+
+	memcpy(&req.info.saddr, &src, sizeof(src));
+
+	/* Fill lifteme_cfg */
+	req.info.lft.soft_byte_limit	= XFRM_INF;
+	req.info.lft.hard_byte_limit	= XFRM_INF;
+	req.info.lft.soft_packet_limit	= XFRM_INF;
+	req.info.lft.hard_packet_limit	= XFRM_INF;
+
+	req.info.family		= AF_INET;
+	req.info.mode		= XFRM_MODE_TUNNEL;
+
+	if (xfrm_state_pack_algo(&req.nh, sizeof(req), desc))
+		return -1;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(xfrm_sock);
+}
+
+static bool xfrm_usersa_found(struct xfrm_usersa_info *info, uint32_t spi,
+		struct in_addr src, struct in_addr dst,
+		struct xfrm_desc *desc)
+{
+	if (memcmp(&info->sel.daddr, &dst, sizeof(dst)))
+		return false;
+
+	if (memcmp(&info->sel.saddr, &src, sizeof(src)))
+		return false;
+
+	if (info->sel.family != AF_INET					||
+			info->sel.prefixlen_d != PREFIX_LEN		||
+			info->sel.prefixlen_s != PREFIX_LEN)
+		return false;
+
+	if (info->id.spi != spi || info->id.proto != desc->proto)
+		return false;
+
+	if (memcmp(&info->id.daddr, &dst, sizeof(dst)))
+		return false;
+
+	if (memcmp(&info->saddr, &src, sizeof(src)))
+		return false;
+
+	if (info->lft.soft_byte_limit != XFRM_INF			||
+			info->lft.hard_byte_limit != XFRM_INF		||
+			info->lft.soft_packet_limit != XFRM_INF		||
+			info->lft.hard_packet_limit != XFRM_INF)
+		return false;
+
+	if (info->family != AF_INET || info->mode != XFRM_MODE_TUNNEL)
+		return false;
+
+	/* XXX: check xfrm algo, see xfrm_state_pack_algo(). */
+
+	return true;
+}
+
+static int xfrm_state_check(int xfrm_sock, uint32_t seq, uint32_t spi,
+		struct in_addr src, struct in_addr dst,
+		struct xfrm_desc *desc)
+{
+	struct {
+		struct nlmsghdr		nh;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	struct {
+		struct nlmsghdr		nh;
+		union {
+			struct xfrm_usersa_info	info;
+			int error;
+		};
+		char			attrbuf[MAX_PAYLOAD];
+	} answer;
+	struct xfrm_address_filter filter = {};
+	bool found = false;
+
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(0);
+	req.nh.nlmsg_type	= XFRM_MSG_GETSA;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_DUMP;
+	req.nh.nlmsg_seq	= seq;
+
+	/*
+	 * Add dump filter by source address as there may be other tunnels
+	 * in this netns (if tests run in parallel).
+	 */
+	filter.family = AF_INET;
+	filter.splen = 0x1f;	/* 0xffffffff mask see addr_match() */
+	memcpy(&filter.saddr, &src, sizeof(src));
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_ADDRESS_FILTER,
+				&filter, sizeof(filter)))
+		return -1;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	while (1) {
+		if (recv(xfrm_sock, &answer, sizeof(answer), 0) < 0) {
+			pr_err("recv()");
+			return -1;
+		}
+		if (answer.nh.nlmsg_type == NLMSG_ERROR) {
+			printk("NLMSG_ERROR: %d: %s",
+				answer.error, strerror(-answer.error));
+			return -1;
+		} else if (answer.nh.nlmsg_type == NLMSG_DONE) {
+			if (found)
+				return 0;
+			printk("didn't find allocated xfrm state in dump");
+			return -1;
+		} else if (answer.nh.nlmsg_type == XFRM_MSG_NEWSA) {
+			if (xfrm_usersa_found(&answer.info, spi, src, dst, desc))
+				found = true;
+		}
+	}
+}
+
+static int xfrm_set(int xfrm_sock, uint32_t *seq,
+		struct in_addr src, struct in_addr dst,
+		struct in_addr tunsrc, struct in_addr tundst,
+		struct xfrm_desc *desc)
+{
+	int err;
+
+	err = xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc);
+	if (err) {
+		printk("Failed to add xfrm state");
+		return -1;
+	}
+
+	err = xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), dst, src, desc);
+	if (err) {
+		printk("Failed to add xfrm state");
+		return -1;
+	}
+
+	/* Check dumps for XFRM_MSG_GETSA */
+	err = xfrm_state_check(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc);
+	err |= xfrm_state_check(xfrm_sock, (*seq)++, gen_spi(src), dst, src, desc);
+	if (err) {
+		printk("Failed to check xfrm state");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int xfrm_policy_add(int xfrm_sock, uint32_t seq, uint32_t spi,
+		struct in_addr src, struct in_addr dst, uint8_t dir,
+		struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+	struct {
+		struct nlmsghdr			nh;
+		struct xfrm_userpolicy_info	info;
+		char				attrbuf[MAX_PAYLOAD];
+	} req;
+	struct xfrm_user_tmpl tmpl;
+
+	memset(&req, 0, sizeof(req));
+	memset(&tmpl, 0, sizeof(tmpl));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= XFRM_MSG_NEWPOLICY;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+
+	/* Fill selector. */
+	memcpy(&req.info.sel.daddr, &dst, sizeof(tundst));
+	memcpy(&req.info.sel.saddr, &src, sizeof(tunsrc));
+	req.info.sel.family		= AF_INET;
+	req.info.sel.prefixlen_d	= PREFIX_LEN;
+	req.info.sel.prefixlen_s	= PREFIX_LEN;
+
+	/* Fill lifteme_cfg */
+	req.info.lft.soft_byte_limit	= XFRM_INF;
+	req.info.lft.hard_byte_limit	= XFRM_INF;
+	req.info.lft.soft_packet_limit	= XFRM_INF;
+	req.info.lft.hard_packet_limit	= XFRM_INF;
+
+	req.info.dir = dir;
+
+	/* Fill tmpl */
+	memcpy(&tmpl.id.daddr, &dst, sizeof(dst));
+	/* Note: zero-spi cannot be deleted */
+	tmpl.id.spi = spi;
+	tmpl.id.proto	= proto;
+	tmpl.family	= AF_INET;
+	memcpy(&tmpl.saddr, &src, sizeof(src));
+	tmpl.mode	= XFRM_MODE_TUNNEL;
+	tmpl.aalgos = (~(uint32_t)0);
+	tmpl.ealgos = (~(uint32_t)0);
+	tmpl.calgos = (~(uint32_t)0);
+
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_TMPL, &tmpl, sizeof(tmpl)))
+		return -1;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_prepare(int xfrm_sock, uint32_t *seq,
+		struct in_addr src, struct in_addr dst,
+		struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+	if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst,
+				XFRM_POLICY_OUT, tunsrc, tundst, proto)) {
+		printk("Failed to add xfrm policy");
+		return -1;
+	}
+
+	if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), dst, src,
+				XFRM_POLICY_IN, tunsrc, tundst, proto)) {
+		printk("Failed to add xfrm policy");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int xfrm_policy_del(int xfrm_sock, uint32_t seq,
+		struct in_addr src, struct in_addr dst, uint8_t dir,
+		struct in_addr tunsrc, struct in_addr tundst)
+{
+	struct {
+		struct nlmsghdr			nh;
+		struct xfrm_userpolicy_id	id;
+		char				attrbuf[MAX_PAYLOAD];
+	} req;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.id));
+	req.nh.nlmsg_type	= XFRM_MSG_DELPOLICY;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+
+	/* Fill id */
+	memcpy(&req.id.sel.daddr, &dst, sizeof(tundst));
+	memcpy(&req.id.sel.saddr, &src, sizeof(tunsrc));
+	req.id.sel.family		= AF_INET;
+	req.id.sel.prefixlen_d		= PREFIX_LEN;
+	req.id.sel.prefixlen_s		= PREFIX_LEN;
+	req.id.dir = dir;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_cleanup(int xfrm_sock, uint32_t *seq,
+		struct in_addr src, struct in_addr dst,
+		struct in_addr tunsrc, struct in_addr tundst)
+{
+	if (xfrm_policy_del(xfrm_sock, (*seq)++, src, dst,
+				XFRM_POLICY_OUT, tunsrc, tundst)) {
+		printk("Failed to add xfrm policy");
+		return -1;
+	}
+
+	if (xfrm_policy_del(xfrm_sock, (*seq)++, dst, src,
+				XFRM_POLICY_IN, tunsrc, tundst)) {
+		printk("Failed to add xfrm policy");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int xfrm_state_del(int xfrm_sock, uint32_t seq, uint32_t spi,
+		struct in_addr src, struct in_addr dst, uint8_t proto)
+{
+	struct {
+		struct nlmsghdr		nh;
+		struct xfrm_usersa_id	id;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	xfrm_address_t saddr = {};
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.id));
+	req.nh.nlmsg_type	= XFRM_MSG_DELSA;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+
+	memcpy(&req.id.daddr, &dst, sizeof(dst));
+	req.id.family		= AF_INET;
+	req.id.proto		= proto;
+	/* Note: zero-spi cannot be deleted */
+	req.id.spi = spi;
+
+	memcpy(&saddr, &src, sizeof(src));
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_SRCADDR, &saddr, sizeof(saddr)))
+		return -1;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(xfrm_sock);
+}
+
+static int xfrm_delete(int xfrm_sock, uint32_t *seq,
+		struct in_addr src, struct in_addr dst,
+		struct in_addr tunsrc, struct in_addr tundst, uint8_t proto)
+{
+	if (xfrm_state_del(xfrm_sock, (*seq)++, gen_spi(src), src, dst, proto)) {
+		printk("Failed to remove xfrm state");
+		return -1;
+	}
+
+	if (xfrm_state_del(xfrm_sock, (*seq)++, gen_spi(src), dst, src, proto)) {
+		printk("Failed to remove xfrm state");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int xfrm_state_allocspi(int xfrm_sock, uint32_t *seq,
+		uint32_t spi, uint8_t proto)
+{
+	struct {
+		struct nlmsghdr			nh;
+		struct xfrm_userspi_info	spi;
+	} req;
+	struct {
+		struct nlmsghdr			nh;
+		union {
+			struct xfrm_usersa_info	info;
+			int error;
+		};
+	} answer;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.spi));
+	req.nh.nlmsg_type	= XFRM_MSG_ALLOCSPI;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST;
+	req.nh.nlmsg_seq	= (*seq)++;
+
+	req.spi.info.family	= AF_INET;
+	req.spi.min		= spi;
+	req.spi.max		= spi;
+	req.spi.info.id.proto	= proto;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return KSFT_FAIL;
+	}
+
+	if (recv(xfrm_sock, &answer, sizeof(answer), 0) < 0) {
+		pr_err("recv()");
+		return KSFT_FAIL;
+	} else if (answer.nh.nlmsg_type == XFRM_MSG_NEWSA) {
+		uint32_t new_spi = htonl(answer.info.id.spi);
+
+		if (new_spi != spi) {
+			printk("allocated spi is different from requested: %#x != %#x",
+					new_spi, spi);
+			return KSFT_FAIL;
+		}
+		return KSFT_PASS;
+	} else if (answer.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)answer.nh.nlmsg_type);
+		return KSFT_FAIL;
+	}
+
+	printk("NLMSG_ERROR: %d: %s", answer.error, strerror(-answer.error));
+	return (answer.error) ? KSFT_FAIL : KSFT_PASS;
+}
+
+static int netlink_sock_bind(int *sock, uint32_t *seq, int proto, uint32_t groups)
+{
+	struct sockaddr_nl snl = {};
+	socklen_t addr_len;
+	int ret = -1;
+
+	snl.nl_family = AF_NETLINK;
+	snl.nl_groups = groups;
+
+	if (netlink_sock(sock, seq, proto)) {
+		printk("Failed to open xfrm netlink socket");
+		return -1;
+	}
+
+	if (bind(*sock, (struct sockaddr *)&snl, sizeof(snl)) < 0) {
+		pr_err("bind()");
+		goto out_close;
+	}
+
+	addr_len = sizeof(snl);
+	if (getsockname(*sock, (struct sockaddr *)&snl, &addr_len) < 0) {
+		pr_err("getsockname()");
+		goto out_close;
+	}
+	if (addr_len != sizeof(snl)) {
+		printk("Wrong address length %d", addr_len);
+		goto out_close;
+	}
+	if (snl.nl_family != AF_NETLINK) {
+		printk("Wrong address family %d", snl.nl_family);
+		goto out_close;
+	}
+	return 0;
+
+out_close:
+	close(*sock);
+	return ret;
+}
+
+static int xfrm_monitor_acquire(int xfrm_sock, uint32_t *seq, unsigned int nr)
+{
+	struct {
+		struct nlmsghdr nh;
+		union {
+			struct xfrm_user_acquire acq;
+			int error;
+		};
+		char attrbuf[MAX_PAYLOAD];
+	} req;
+	struct xfrm_user_tmpl xfrm_tmpl = {};
+	int xfrm_listen = -1, ret = KSFT_FAIL;
+	uint32_t seq_listen;
+
+	if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_ACQUIRE))
+		return KSFT_FAIL;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.acq));
+	req.nh.nlmsg_type	= XFRM_MSG_ACQUIRE;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= (*seq)++;
+
+	req.acq.policy.sel.family	= AF_INET;
+	req.acq.aalgos	= 0xfeed;
+	req.acq.ealgos	= 0xbaad;
+	req.acq.calgos	= 0xbabe;
+
+	xfrm_tmpl.family = AF_INET;
+	xfrm_tmpl.id.proto = IPPROTO_ESP;
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_TMPL, &xfrm_tmpl, sizeof(xfrm_tmpl)))
+		goto out_close;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		goto out_close;
+	}
+
+	if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	} else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+		goto out_close;
+	}
+
+	if (req.error) {
+		printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+		ret = req.error;
+		goto out_close;
+	}
+
+	if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	}
+
+	if (req.acq.aalgos != 0xfeed || req.acq.ealgos != 0xbaad
+			|| req.acq.calgos != 0xbabe) {
+		printk("xfrm_user_acquire has changed  %x %x %x",
+				req.acq.aalgos, req.acq.ealgos, req.acq.calgos);
+		goto out_close;
+	}
+
+	ret = KSFT_PASS;
+out_close:
+	close(xfrm_listen);
+	return ret;
+}
+
+static int xfrm_expire_state(int xfrm_sock, uint32_t *seq,
+		unsigned int nr, struct xfrm_desc *desc)
+{
+	struct {
+		struct nlmsghdr nh;
+		union {
+			struct xfrm_user_expire expire;
+			int error;
+		};
+	} req;
+	struct in_addr src, dst;
+	int xfrm_listen = -1, ret = KSFT_FAIL;
+	uint32_t seq_listen;
+
+	src = inet_makeaddr(INADDR_B, child_ip(nr));
+	dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+
+	if (xfrm_state_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst, desc)) {
+		printk("Failed to add xfrm state");
+		return KSFT_FAIL;
+	}
+
+	if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_EXPIRE))
+		return KSFT_FAIL;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.expire));
+	req.nh.nlmsg_type	= XFRM_MSG_EXPIRE;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= (*seq)++;
+
+	memcpy(&req.expire.state.id.daddr, &dst, sizeof(dst));
+	req.expire.state.id.spi		= gen_spi(src);
+	req.expire.state.id.proto	= desc->proto;
+	req.expire.state.family		= AF_INET;
+	req.expire.hard			= 0xff;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		goto out_close;
+	}
+
+	if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	} else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+		goto out_close;
+	}
+
+	if (req.error) {
+		printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+		ret = req.error;
+		goto out_close;
+	}
+
+	if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	}
+
+	if (req.expire.hard != 0x1) {
+		printk("expire.hard is not set: %x", req.expire.hard);
+		goto out_close;
+	}
+
+	ret = KSFT_PASS;
+out_close:
+	close(xfrm_listen);
+	return ret;
+}
+
+static int xfrm_expire_policy(int xfrm_sock, uint32_t *seq,
+		unsigned int nr, struct xfrm_desc *desc)
+{
+	struct {
+		struct nlmsghdr nh;
+		union {
+			struct xfrm_user_polexpire expire;
+			int error;
+		};
+	} req;
+	struct in_addr src, dst, tunsrc, tundst;
+	int xfrm_listen = -1, ret = KSFT_FAIL;
+	uint32_t seq_listen;
+
+	src = inet_makeaddr(INADDR_B, child_ip(nr));
+	dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+	tunsrc = inet_makeaddr(INADDR_A, child_ip(nr));
+	tundst = inet_makeaddr(INADDR_A, grchild_ip(nr));
+
+	if (xfrm_policy_add(xfrm_sock, (*seq)++, gen_spi(src), src, dst,
+				XFRM_POLICY_OUT, tunsrc, tundst, desc->proto)) {
+		printk("Failed to add xfrm policy");
+		return KSFT_FAIL;
+	}
+
+	if (netlink_sock_bind(&xfrm_listen, &seq_listen, NETLINK_XFRM, XFRMNLGRP_EXPIRE))
+		return KSFT_FAIL;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.expire));
+	req.nh.nlmsg_type	= XFRM_MSG_POLEXPIRE;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= (*seq)++;
+
+	/* Fill selector. */
+	memcpy(&req.expire.pol.sel.daddr, &dst, sizeof(tundst));
+	memcpy(&req.expire.pol.sel.saddr, &src, sizeof(tunsrc));
+	req.expire.pol.sel.family	= AF_INET;
+	req.expire.pol.sel.prefixlen_d	= PREFIX_LEN;
+	req.expire.pol.sel.prefixlen_s	= PREFIX_LEN;
+	req.expire.pol.dir		= XFRM_POLICY_OUT;
+	req.expire.hard			= 0xff;
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		goto out_close;
+	}
+
+	if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	} else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+		goto out_close;
+	}
+
+	if (req.error) {
+		printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+		ret = req.error;
+		goto out_close;
+	}
+
+	if (recv(xfrm_listen, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		goto out_close;
+	}
+
+	if (req.expire.hard != 0x1) {
+		printk("expire.hard is not set: %x", req.expire.hard);
+		goto out_close;
+	}
+
+	ret = KSFT_PASS;
+out_close:
+	close(xfrm_listen);
+	return ret;
+}
+
+static int xfrm_spdinfo_set_thresh(int xfrm_sock, uint32_t *seq,
+		unsigned thresh4_l, unsigned thresh4_r,
+		unsigned thresh6_l, unsigned thresh6_r,
+		bool add_bad_attr)
+
+{
+	struct {
+		struct nlmsghdr		nh;
+		union {
+			uint32_t	unused;
+			int		error;
+		};
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	struct xfrmu_spdhthresh thresh;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.unused));
+	req.nh.nlmsg_type	= XFRM_MSG_NEWSPDINFO;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= (*seq)++;
+
+	thresh.lbits = thresh4_l;
+	thresh.rbits = thresh4_r;
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_SPD_IPV4_HTHRESH, &thresh, sizeof(thresh)))
+		return -1;
+
+	thresh.lbits = thresh6_l;
+	thresh.rbits = thresh6_r;
+	if (rtattr_pack(&req.nh, sizeof(req), XFRMA_SPD_IPV6_HTHRESH, &thresh, sizeof(thresh)))
+		return -1;
+
+	if (add_bad_attr) {
+		BUILD_BUG_ON(XFRMA_IF_ID <= XFRMA_SPD_MAX + 1);
+		if (rtattr_pack(&req.nh, sizeof(req), XFRMA_IF_ID, NULL, 0)) {
+			pr_err("adding attribute failed: no space");
+			return -1;
+		}
+	}
+
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return -1;
+	}
+
+	if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		return -1;
+	} else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+		return -1;
+	}
+
+	if (req.error) {
+		printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+		return -1;
+	}
+
+	return 0;
+}
+
+static int xfrm_spdinfo_attrs(int xfrm_sock, uint32_t *seq)
+{
+	struct {
+		struct nlmsghdr			nh;
+		union {
+			uint32_t	unused;
+			int		error;
+		};
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+
+	if (xfrm_spdinfo_set_thresh(xfrm_sock, seq, 32, 31, 120, 16, false)) {
+		pr_err("Can't set SPD HTHRESH");
+		return KSFT_FAIL;
+	}
+
+	memset(&req, 0, sizeof(req));
+
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.unused));
+	req.nh.nlmsg_type	= XFRM_MSG_GETSPDINFO;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST;
+	req.nh.nlmsg_seq	= (*seq)++;
+	if (send(xfrm_sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		pr_err("send()");
+		return KSFT_FAIL;
+	}
+
+	if (recv(xfrm_sock, &req, sizeof(req), 0) < 0) {
+		pr_err("recv()");
+		return KSFT_FAIL;
+	} else if (req.nh.nlmsg_type == XFRM_MSG_NEWSPDINFO) {
+		size_t len = NLMSG_PAYLOAD(&req.nh, sizeof(req.unused));
+		struct rtattr *attr = (void *)req.attrbuf;
+		int got_thresh = 0;
+
+		for (; RTA_OK(attr, len); attr = RTA_NEXT(attr, len)) {
+			if (attr->rta_type == XFRMA_SPD_IPV4_HTHRESH) {
+				struct xfrmu_spdhthresh *t = RTA_DATA(attr);
+
+				got_thresh++;
+				if (t->lbits != 32 || t->rbits != 31) {
+					pr_err("thresh differ: %u, %u",
+							t->lbits, t->rbits);
+					return KSFT_FAIL;
+				}
+			}
+			if (attr->rta_type == XFRMA_SPD_IPV6_HTHRESH) {
+				struct xfrmu_spdhthresh *t = RTA_DATA(attr);
+
+				got_thresh++;
+				if (t->lbits != 120 || t->rbits != 16) {
+					pr_err("thresh differ: %u, %u",
+							t->lbits, t->rbits);
+					return KSFT_FAIL;
+				}
+			}
+		}
+		if (got_thresh != 2) {
+			pr_err("only %d thresh returned by XFRM_MSG_GETSPDINFO", got_thresh);
+			return KSFT_FAIL;
+		}
+	} else if (req.nh.nlmsg_type != NLMSG_ERROR) {
+		printk("expected NLMSG_ERROR, got %d", (int)req.nh.nlmsg_type);
+		return KSFT_FAIL;
+	} else {
+		printk("NLMSG_ERROR: %d: %s", req.error, strerror(-req.error));
+		return -1;
+	}
+
+	/* Restore the default */
+	if (xfrm_spdinfo_set_thresh(xfrm_sock, seq, 32, 32, 128, 128, false)) {
+		pr_err("Can't restore SPD HTHRESH");
+		return KSFT_FAIL;
+	}
+
+	/*
+	 * At this moment xfrm uses nlmsg_parse_deprecated(), which
+	 * implies NL_VALIDATE_LIBERAL - ignoring attributes with
+	 * (type > maxtype). nla_parse_depricated_strict() would enforce
+	 * it. Or even stricter nla_parse().
+	 * Right now it's not expected to fail, but to be ignored.
+	 */
+	if (xfrm_spdinfo_set_thresh(xfrm_sock, seq, 32, 32, 128, 128, true))
+		return KSFT_PASS;
+
+	return KSFT_PASS;
+}
+
+static int child_serv(int xfrm_sock, uint32_t *seq,
+		unsigned int nr, int cmd_fd, void *buf, struct xfrm_desc *desc)
+{
+	struct in_addr src, dst, tunsrc, tundst;
+	struct test_desc msg;
+	int ret = KSFT_FAIL;
+
+	src = inet_makeaddr(INADDR_B, child_ip(nr));
+	dst = inet_makeaddr(INADDR_B, grchild_ip(nr));
+	tunsrc = inet_makeaddr(INADDR_A, child_ip(nr));
+	tundst = inet_makeaddr(INADDR_A, grchild_ip(nr));
+
+	/* UDP pinging without xfrm */
+	if (do_ping(cmd_fd, buf, page_size, src, true, 0, 0, udp_ping_send)) {
+		printk("ping failed before setting xfrm");
+		return KSFT_FAIL;
+	}
+
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_XFRM_PREPARE;
+	memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+	write_msg(cmd_fd, &msg, 1);
+
+	if (xfrm_prepare(xfrm_sock, seq, src, dst, tunsrc, tundst, desc->proto)) {
+		printk("failed to prepare xfrm");
+		goto cleanup;
+	}
+
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_XFRM_ADD;
+	memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+	write_msg(cmd_fd, &msg, 1);
+	if (xfrm_set(xfrm_sock, seq, src, dst, tunsrc, tundst, desc)) {
+		printk("failed to set xfrm");
+		goto delete;
+	}
+
+	/* UDP pinging with xfrm tunnel */
+	if (do_ping(cmd_fd, buf, page_size, tunsrc,
+				true, 0, 0, udp_ping_send)) {
+		printk("ping failed for xfrm");
+		goto delete;
+	}
+
+	ret = KSFT_PASS;
+delete:
+	/* xfrm delete */
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_XFRM_DEL;
+	memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+	write_msg(cmd_fd, &msg, 1);
+
+	if (xfrm_delete(xfrm_sock, seq, src, dst, tunsrc, tundst, desc->proto)) {
+		printk("failed ping to remove xfrm");
+		ret = KSFT_FAIL;
+	}
+
+cleanup:
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_XFRM_CLEANUP;
+	memcpy(&msg.body.xfrm_desc, desc, sizeof(*desc));
+	write_msg(cmd_fd, &msg, 1);
+	if (xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst)) {
+		printk("failed ping to cleanup xfrm");
+		ret = KSFT_FAIL;
+	}
+	return ret;
+}
+
+static int child_f(unsigned int nr, int test_desc_fd, int cmd_fd, void *buf)
+{
+	struct xfrm_desc desc;
+	struct test_desc msg;
+	int xfrm_sock = -1;
+	uint32_t seq;
+
+	if (switch_ns(nsfd_childa))
+		exit(KSFT_FAIL);
+
+	if (netlink_sock(&xfrm_sock, &seq, NETLINK_XFRM)) {
+		printk("Failed to open xfrm netlink socket");
+		exit(KSFT_FAIL);
+	}
+
+	/* Check that seq sock is ready, just for sure. */
+	memset(&msg, 0, sizeof(msg));
+	msg.type = MSG_ACK;
+	write_msg(cmd_fd, &msg, 1);
+	read_msg(cmd_fd, &msg, 1);
+	if (msg.type != MSG_ACK) {
+		printk("Ack failed");
+		exit(KSFT_FAIL);
+	}
+
+	for (;;) {
+		ssize_t received = read(test_desc_fd, &desc, sizeof(desc));
+		int ret;
+
+		if (received == 0) /* EOF */
+			break;
+
+		if (received != sizeof(desc)) {
+			pr_err("read() returned %zd", received);
+			exit(KSFT_FAIL);
+		}
+
+		switch (desc.type) {
+		case CREATE_TUNNEL:
+			ret = child_serv(xfrm_sock, &seq, nr,
+					 cmd_fd, buf, &desc);
+			break;
+		case ALLOCATE_SPI:
+			ret = xfrm_state_allocspi(xfrm_sock, &seq,
+						  -1, desc.proto);
+			break;
+		case MONITOR_ACQUIRE:
+			ret = xfrm_monitor_acquire(xfrm_sock, &seq, nr);
+			break;
+		case EXPIRE_STATE:
+			ret = xfrm_expire_state(xfrm_sock, &seq, nr, &desc);
+			break;
+		case EXPIRE_POLICY:
+			ret = xfrm_expire_policy(xfrm_sock, &seq, nr, &desc);
+			break;
+		case SPDINFO_ATTRS:
+			ret = xfrm_spdinfo_attrs(xfrm_sock, &seq);
+			break;
+		default:
+			printk("Unknown desc type %d", desc.type);
+			exit(KSFT_FAIL);
+		}
+		write_test_result(ret, &desc);
+	}
+
+	close(xfrm_sock);
+
+	msg.type = MSG_EXIT;
+	write_msg(cmd_fd, &msg, 1);
+	exit(KSFT_PASS);
+}
+
+static void grand_child_serv(unsigned int nr, int cmd_fd, void *buf,
+		struct test_desc *msg, int xfrm_sock, uint32_t *seq)
+{
+	struct in_addr src, dst, tunsrc, tundst;
+	bool tun_reply;
+	struct xfrm_desc *desc = &msg->body.xfrm_desc;
+
+	src = inet_makeaddr(INADDR_B, grchild_ip(nr));
+	dst = inet_makeaddr(INADDR_B, child_ip(nr));
+	tunsrc = inet_makeaddr(INADDR_A, grchild_ip(nr));
+	tundst = inet_makeaddr(INADDR_A, child_ip(nr));
+
+	switch (msg->type) {
+	case MSG_EXIT:
+		exit(KSFT_PASS);
+	case MSG_ACK:
+		write_msg(cmd_fd, msg, 1);
+		break;
+	case MSG_PING:
+		tun_reply = memcmp(&dst, &msg->body.ping.reply_ip, sizeof(in_addr_t));
+		/* UDP pinging without xfrm */
+		if (do_ping(cmd_fd, buf, page_size, tun_reply ? tunsrc : src,
+				false, msg->body.ping.port,
+				msg->body.ping.reply_ip, udp_ping_reply)) {
+			printk("ping failed before setting xfrm");
+		}
+		break;
+	case MSG_XFRM_PREPARE:
+		if (xfrm_prepare(xfrm_sock, seq, src, dst, tunsrc, tundst,
+					desc->proto)) {
+			xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+			printk("failed to prepare xfrm");
+		}
+		break;
+	case MSG_XFRM_ADD:
+		if (xfrm_set(xfrm_sock, seq, src, dst, tunsrc, tundst, desc)) {
+			xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+			printk("failed to set xfrm");
+		}
+		break;
+	case MSG_XFRM_DEL:
+		if (xfrm_delete(xfrm_sock, seq, src, dst, tunsrc, tundst,
+					desc->proto)) {
+			xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst);
+			printk("failed to remove xfrm");
+		}
+		break;
+	case MSG_XFRM_CLEANUP:
+		if (xfrm_cleanup(xfrm_sock, seq, src, dst, tunsrc, tundst)) {
+			printk("failed to cleanup xfrm");
+		}
+		break;
+	default:
+		printk("got unknown msg type %d", msg->type);
+	}
+}
+
+static int grand_child_f(unsigned int nr, int cmd_fd, void *buf)
+{
+	struct test_desc msg;
+	int xfrm_sock = -1;
+	uint32_t seq;
+
+	if (switch_ns(nsfd_childb))
+		exit(KSFT_FAIL);
+
+	if (netlink_sock(&xfrm_sock, &seq, NETLINK_XFRM)) {
+		printk("Failed to open xfrm netlink socket");
+		exit(KSFT_FAIL);
+	}
+
+	do {
+		read_msg(cmd_fd, &msg, 1);
+		grand_child_serv(nr, cmd_fd, buf, &msg, xfrm_sock, &seq);
+	} while (1);
+
+	close(xfrm_sock);
+	exit(KSFT_FAIL);
+}
+
+static int start_child(unsigned int nr, char *veth, int test_desc_fd[2])
+{
+	int cmd_sock[2];
+	void *data_map;
+	pid_t child;
+
+	if (init_child(nsfd_childa, veth, child_ip(nr), grchild_ip(nr)))
+		return -1;
+
+	if (init_child(nsfd_childb, veth, grchild_ip(nr), child_ip(nr)))
+		return -1;
+
+	child = fork();
+	if (child < 0) {
+		pr_err("fork()");
+		return -1;
+	} else if (child) {
+		/* in parent - selftest */
+		return switch_ns(nsfd_parent);
+	}
+
+	if (close(test_desc_fd[1])) {
+		pr_err("close()");
+		return -1;
+	}
+
+	/* child */
+	data_map = mmap(0, page_size, PROT_READ | PROT_WRITE,
+			MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	if (data_map == MAP_FAILED) {
+		pr_err("mmap()");
+		return -1;
+	}
+
+	randomize_buffer(data_map, page_size);
+
+	if (socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, cmd_sock)) {
+		pr_err("socketpair()");
+		return -1;
+	}
+
+	child = fork();
+	if (child < 0) {
+		pr_err("fork()");
+		return -1;
+	} else if (child) {
+		if (close(cmd_sock[0])) {
+			pr_err("close()");
+			return -1;
+		}
+		return child_f(nr, test_desc_fd[0], cmd_sock[1], data_map);
+	}
+	if (close(cmd_sock[1])) {
+		pr_err("close()");
+		return -1;
+	}
+	return grand_child_f(nr, cmd_sock[0], data_map);
+}
+
+static void exit_usage(char **argv)
+{
+	printk("Usage: %s [nr_process]", argv[0]);
+	exit(KSFT_FAIL);
+}
+
+static int __write_desc(int test_desc_fd, struct xfrm_desc *desc)
+{
+	ssize_t ret;
+
+	ret = write(test_desc_fd, desc, sizeof(*desc));
+
+	if (ret == sizeof(*desc))
+		return 0;
+
+	pr_err("Writing test's desc failed %ld", ret);
+
+	return -1;
+}
+
+static int write_desc(int proto, int test_desc_fd,
+		char *a, char *e, char *c, char *ae)
+{
+	struct xfrm_desc desc = {};
+
+	desc.type = CREATE_TUNNEL;
+	desc.proto = proto;
+
+	if (a)
+		strncpy(desc.a_algo, a, ALGO_LEN - 1);
+	if (e)
+		strncpy(desc.e_algo, e, ALGO_LEN - 1);
+	if (c)
+		strncpy(desc.c_algo, c, ALGO_LEN - 1);
+	if (ae)
+		strncpy(desc.ae_algo, ae, ALGO_LEN - 1);
+
+	return __write_desc(test_desc_fd, &desc);
+}
+
+int proto_list[] = { IPPROTO_AH, IPPROTO_COMP, IPPROTO_ESP };
+char *ah_list[] = {
+	"digest_null", "hmac(md5)", "hmac(sha1)", "hmac(sha256)",
+	"hmac(sha384)", "hmac(sha512)", "hmac(rmd160)",
+	"xcbc(aes)", "cmac(aes)"
+};
+char *comp_list[] = {
+	"deflate",
+#if 0
+	/* No compression backend realization */
+	"lzs", "lzjh"
+#endif
+};
+char *e_list[] = {
+	"ecb(cipher_null)", "cbc(des)", "cbc(des3_ede)", "cbc(cast5)",
+	"cbc(blowfish)", "cbc(aes)", "cbc(serpent)", "cbc(camellia)",
+	"cbc(twofish)", "rfc3686(ctr(aes))"
+};
+char *ae_list[] = {
+#if 0
+	/* not implemented */
+	"rfc4106(gcm(aes))", "rfc4309(ccm(aes))", "rfc4543(gcm(aes))",
+	"rfc7539esp(chacha20,poly1305)"
+#endif
+};
+
+const unsigned int proto_plan = ARRAY_SIZE(ah_list) + ARRAY_SIZE(comp_list) \
+				+ (ARRAY_SIZE(ah_list) * ARRAY_SIZE(e_list)) \
+				+ ARRAY_SIZE(ae_list);
+
+static int write_proto_plan(int fd, int proto)
+{
+	unsigned int i;
+
+	switch (proto) {
+	case IPPROTO_AH:
+		for (i = 0; i < ARRAY_SIZE(ah_list); i++) {
+			if (write_desc(proto, fd, ah_list[i], 0, 0, 0))
+				return -1;
+		}
+		break;
+	case IPPROTO_COMP:
+		for (i = 0; i < ARRAY_SIZE(comp_list); i++) {
+			if (write_desc(proto, fd, 0, 0, comp_list[i], 0))
+				return -1;
+		}
+		break;
+	case IPPROTO_ESP:
+		for (i = 0; i < ARRAY_SIZE(ah_list); i++) {
+			int j;
+
+			for (j = 0; j < ARRAY_SIZE(e_list); j++) {
+				if (write_desc(proto, fd, ah_list[i],
+							e_list[j], 0, 0))
+					return -1;
+			}
+		}
+		for (i = 0; i < ARRAY_SIZE(ae_list); i++) {
+			if (write_desc(proto, fd, 0, 0, 0, ae_list[i]))
+				return -1;
+		}
+		break;
+	default:
+		printk("BUG: Specified unknown proto %d", proto);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * Some structures in xfrm uapi header differ in size between
+ * 64-bit and 32-bit ABI:
+ *
+ *             32-bit UABI               |            64-bit UABI
+ *  -------------------------------------|-------------------------------------
+ *   sizeof(xfrm_usersa_info)     = 220  |  sizeof(xfrm_usersa_info)     = 224
+ *   sizeof(xfrm_userpolicy_info) = 164  |  sizeof(xfrm_userpolicy_info) = 168
+ *   sizeof(xfrm_userspi_info)    = 228  |  sizeof(xfrm_userspi_info)    = 232
+ *   sizeof(xfrm_user_acquire)    = 276  |  sizeof(xfrm_user_acquire)    = 280
+ *   sizeof(xfrm_user_expire)     = 224  |  sizeof(xfrm_user_expire)     = 232
+ *   sizeof(xfrm_user_polexpire)  = 168  |  sizeof(xfrm_user_polexpire)  = 176
+ *
+ * Check the affected by the UABI difference structures.
+ * Also, check translation for xfrm_set_spdinfo: it has it's own attributes
+ * which needs to be correctly copied, but not translated.
+ */
+const unsigned int compat_plan = 5;
+static int write_compat_struct_tests(int test_desc_fd)
+{
+	struct xfrm_desc desc = {};
+
+	desc.type = ALLOCATE_SPI;
+	desc.proto = IPPROTO_AH;
+	strncpy(desc.a_algo, ah_list[0], ALGO_LEN - 1);
+
+	if (__write_desc(test_desc_fd, &desc))
+		return -1;
+
+	desc.type = MONITOR_ACQUIRE;
+	if (__write_desc(test_desc_fd, &desc))
+		return -1;
+
+	desc.type = EXPIRE_STATE;
+	if (__write_desc(test_desc_fd, &desc))
+		return -1;
+
+	desc.type = EXPIRE_POLICY;
+	if (__write_desc(test_desc_fd, &desc))
+		return -1;
+
+	desc.type = SPDINFO_ATTRS;
+	if (__write_desc(test_desc_fd, &desc))
+		return -1;
+
+	return 0;
+}
+
+static int write_test_plan(int test_desc_fd)
+{
+	unsigned int i;
+	pid_t child;
+
+	child = fork();
+	if (child < 0) {
+		pr_err("fork()");
+		return -1;
+	}
+	if (child) {
+		if (close(test_desc_fd))
+			printk("close(): %m");
+		return 0;
+	}
+
+	if (write_compat_struct_tests(test_desc_fd))
+		exit(KSFT_FAIL);
+
+	for (i = 0; i < ARRAY_SIZE(proto_list); i++) {
+		if (write_proto_plan(test_desc_fd, proto_list[i]))
+			exit(KSFT_FAIL);
+	}
+
+	exit(KSFT_PASS);
+}
+
+static int children_cleanup(void)
+{
+	unsigned ret = KSFT_PASS;
+
+	while (1) {
+		int status;
+		pid_t p = wait(&status);
+
+		if ((p < 0) && errno == ECHILD)
+			break;
+
+		if (p < 0) {
+			pr_err("wait()");
+			return KSFT_FAIL;
+		}
+
+		if (!WIFEXITED(status)) {
+			ret = KSFT_FAIL;
+			continue;
+		}
+
+		if (WEXITSTATUS(status) == KSFT_FAIL)
+			ret = KSFT_FAIL;
+	}
+
+	return ret;
+}
+
+typedef void (*print_res)(const char *, ...);
+
+static int check_results(void)
+{
+	struct test_result tr = {};
+	struct xfrm_desc *d = &tr.desc;
+	int ret = KSFT_PASS;
+
+	while (1) {
+		ssize_t received = read(results_fd[0], &tr, sizeof(tr));
+		print_res result;
+
+		if (received == 0) /* EOF */
+			break;
+
+		if (received != sizeof(tr)) {
+			pr_err("read() returned %zd", received);
+			return KSFT_FAIL;
+		}
+
+		switch (tr.res) {
+		case KSFT_PASS:
+			result = ksft_test_result_pass;
+			break;
+		case KSFT_FAIL:
+		default:
+			result = ksft_test_result_fail;
+			ret = KSFT_FAIL;
+		}
+
+		result(" %s: [%u, '%s', '%s', '%s', '%s', %u]\n",
+		       desc_name[d->type], (unsigned int)d->proto, d->a_algo,
+		       d->e_algo, d->c_algo, d->ae_algo, d->icv_len);
+	}
+
+	return ret;
+}
+
+int main(int argc, char **argv)
+{
+	long nr_process = 1;
+	int route_sock = -1, ret = KSFT_SKIP;
+	int test_desc_fd[2];
+	uint32_t route_seq;
+	unsigned int i;
+
+	if (argc > 2)
+		exit_usage(argv);
+
+	if (argc > 1) {
+		char *endptr;
+
+		errno = 0;
+		nr_process = strtol(argv[1], &endptr, 10);
+		if ((errno == ERANGE && (nr_process == LONG_MAX || nr_process == LONG_MIN))
+				|| (errno != 0 && nr_process == 0)
+				|| (endptr == argv[1]) || (*endptr != '\0')) {
+			printk("Failed to parse [nr_process]");
+			exit_usage(argv);
+		}
+
+		if (nr_process > MAX_PROCESSES || nr_process < 1) {
+			printk("nr_process should be between [1; %u]",
+					MAX_PROCESSES);
+			exit_usage(argv);
+		}
+	}
+
+	srand(time(NULL));
+	page_size = sysconf(_SC_PAGESIZE);
+	if (page_size < 1)
+		ksft_exit_skip("sysconf(): %m\n");
+
+	if (pipe2(test_desc_fd, O_DIRECT) < 0)
+		ksft_exit_skip("pipe(): %m\n");
+
+	if (pipe2(results_fd, O_DIRECT) < 0)
+		ksft_exit_skip("pipe(): %m\n");
+
+	if (init_namespaces())
+		ksft_exit_skip("Failed to create namespaces\n");
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		ksft_exit_skip("Failed to open netlink route socket\n");
+
+	for (i = 0; i < nr_process; i++) {
+		char veth[VETH_LEN];
+
+		snprintf(veth, VETH_LEN, VETH_FMT, i);
+
+		if (veth_add(route_sock, route_seq++, veth, nsfd_childa, veth, nsfd_childb)) {
+			close(route_sock);
+			ksft_exit_fail_msg("Failed to create veth device");
+		}
+
+		if (start_child(i, veth, test_desc_fd)) {
+			close(route_sock);
+			ksft_exit_fail_msg("Child %u failed to start", i);
+		}
+	}
+
+	if (close(route_sock) || close(test_desc_fd[0]) || close(results_fd[1]))
+		ksft_exit_fail_msg("close(): %m");
+
+	ksft_set_plan(proto_plan + compat_plan);
+
+	if (write_test_plan(test_desc_fd[1]))
+		ksft_exit_fail_msg("Failed to write test plan to pipe");
+
+	ret = check_results();
+
+	if (children_cleanup() == KSFT_FAIL)
+		exit(KSFT_FAIL);
+
+	exit(ret);
+}
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.c b/tools/testing/selftests/net/ipv6_flowlabel.c
new file mode 100644
index 000000000000..708a9822259d
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test IPV6_FLOWINFO cmsg on send and recv */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/byteorder.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/icmpv6.h>
+#include <linux/in6.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+/* uapi/glibc weirdness may leave this undefined */
+#ifndef IPV6_FLOWINFO
+#define IPV6_FLOWINFO 11
+#endif
+
+#ifndef IPV6_FLOWLABEL_MGR
+#define IPV6_FLOWLABEL_MGR 32
+#endif
+#ifndef IPV6_FLOWINFO_SEND
+#define IPV6_FLOWINFO_SEND 33
+#endif
+
+#define FLOWLABEL_WILDCARD	((uint32_t) -1)
+
+static const char cfg_data[]	= "a";
+static uint32_t cfg_label	= 1;
+static bool use_ping;
+static bool use_flowinfo_send;
+
+static struct icmp6hdr icmp6 = {
+	.icmp6_type = ICMPV6_ECHO_REQUEST
+};
+
+static struct sockaddr_in6 addr = {
+	.sin6_family = AF_INET6,
+	.sin6_addr = IN6ADDR_LOOPBACK_INIT,
+};
+
+static void do_send(int fd, bool with_flowlabel, uint32_t flowlabel)
+{
+	char control[CMSG_SPACE(sizeof(flowlabel))] = {0};
+	struct msghdr msg = {0};
+	struct iovec iov = {
+		.iov_base = (char *)cfg_data,
+		.iov_len = sizeof(cfg_data)
+	};
+	int ret;
+
+	if (use_ping) {
+		iov.iov_base = &icmp6;
+		iov.iov_len = sizeof(icmp6);
+	}
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	if (use_flowinfo_send) {
+		msg.msg_name = &addr;
+		msg.msg_namelen = sizeof(addr);
+	} else if (with_flowlabel) {
+		struct cmsghdr *cm;
+
+		cm = (void *)control;
+		cm->cmsg_len = CMSG_LEN(sizeof(flowlabel));
+		cm->cmsg_level = SOL_IPV6;
+		cm->cmsg_type = IPV6_FLOWINFO;
+		*(uint32_t *)CMSG_DATA(cm) = htonl(flowlabel);
+
+		msg.msg_control = control;
+		msg.msg_controllen = sizeof(control);
+	}
+
+	ret = sendmsg(fd, &msg, 0);
+	if (ret == -1)
+		error(1, errno, "send");
+
+	if (with_flowlabel)
+		fprintf(stderr, "sent with label %u\n", flowlabel);
+	else
+		fprintf(stderr, "sent without label\n");
+}
+
+static void do_recv(int fd, bool with_flowlabel, uint32_t expect)
+{
+	char control[CMSG_SPACE(sizeof(expect))];
+	char data[sizeof(cfg_data)];
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	struct cmsghdr *cm;
+	uint32_t flowlabel;
+	int ret;
+
+	iov.iov_base = data;
+	iov.iov_len = sizeof(data);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	memset(control, 0, sizeof(control));
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	ret = recvmsg(fd, &msg, 0);
+	if (ret == -1)
+		error(1, errno, "recv");
+	if (use_ping)
+		goto parse_cmsg;
+	if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
+		error(1, 0, "recv: truncated");
+	if (ret != sizeof(cfg_data))
+		error(1, 0, "recv: length mismatch");
+	if (memcmp(data, cfg_data, sizeof(data)))
+		error(1, 0, "recv: data mismatch");
+
+parse_cmsg:
+	cm = CMSG_FIRSTHDR(&msg);
+	if (with_flowlabel) {
+		if (!cm)
+			error(1, 0, "recv: missing cmsg");
+		if (CMSG_NXTHDR(&msg, cm))
+			error(1, 0, "recv: too many cmsg");
+		if (cm->cmsg_level != SOL_IPV6 ||
+		    cm->cmsg_type != IPV6_FLOWINFO)
+			error(1, 0, "recv: unexpected cmsg level or type");
+
+		flowlabel = ntohl(*(uint32_t *)CMSG_DATA(cm));
+		fprintf(stderr, "recv with label %u\n", flowlabel);
+
+		if (expect != FLOWLABEL_WILDCARD && expect != flowlabel) {
+			fprintf(stderr, "recv: incorrect flowlabel %u != %u\n",
+					flowlabel, expect);
+			error(1, 0, "recv: flowlabel is wrong");
+		}
+
+	} else {
+		fprintf(stderr, "recv without label\n");
+	}
+}
+
+static bool get_autoflowlabel_enabled(void)
+{
+	int fd, ret;
+	char val;
+
+	fd = open("/proc/sys/net/ipv6/auto_flowlabels", O_RDONLY);
+	if (fd == -1)
+		error(1, errno, "open sysctl");
+
+	ret = read(fd, &val, 1);
+	if (ret == -1)
+		error(1, errno, "read sysctl");
+	if (ret == 0)
+		error(1, 0, "read sysctl: 0");
+
+	if (close(fd))
+		error(1, errno, "close sysctl");
+
+	return val == '1';
+}
+
+static void flowlabel_get(int fd, uint32_t label, uint8_t share, uint16_t flags)
+{
+	struct in6_flowlabel_req req = {
+		.flr_action = IPV6_FL_A_GET,
+		.flr_label = htonl(label),
+		.flr_flags = flags,
+		.flr_share = share,
+	};
+
+	/* do not pass IPV6_ADDR_ANY or IPV6_ADDR_MAPPED */
+	req.flr_dst.s6_addr[0] = 0xfd;
+	req.flr_dst.s6_addr[15] = 0x1;
+
+	if (setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req)))
+		error(1, errno, "setsockopt flowlabel get");
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "l:ps")) != -1) {
+		switch (c) {
+		case 'l':
+			cfg_label = strtoul(optarg, NULL, 0);
+			break;
+		case 'p':
+			use_ping = true;
+			break;
+		case 's':
+			use_flowinfo_send = true;
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	const int one = 1;
+	int fdt, fdr;
+	int prot = 0;
+
+	addr.sin6_port = htons(8000);
+
+	parse_opts(argc, argv);
+
+	if (use_ping) {
+		fprintf(stderr, "attempting to use ping sockets\n");
+		prot = IPPROTO_ICMPV6;
+	}
+
+	fdt = socket(PF_INET6, SOCK_DGRAM, prot);
+	if (fdt == -1)
+		error(1, errno, "socket t");
+
+	fdr = use_ping ? fdt : socket(PF_INET6, SOCK_DGRAM, 0);
+	if (fdr == -1)
+		error(1, errno, "socket r");
+
+	if (connect(fdt, (void *)&addr, sizeof(addr)))
+		error(1, errno, "connect");
+	if (!use_ping && bind(fdr, (void *)&addr, sizeof(addr)))
+		error(1, errno, "bind");
+
+	flowlabel_get(fdt, cfg_label, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE);
+
+	if (setsockopt(fdr, SOL_IPV6, IPV6_FLOWINFO, &one, sizeof(one)))
+		error(1, errno, "setsockopt flowinfo");
+
+	if (get_autoflowlabel_enabled()) {
+		fprintf(stderr, "send no label: recv auto flowlabel\n");
+		do_send(fdt, false, 0);
+		do_recv(fdr, true, FLOWLABEL_WILDCARD);
+	} else {
+		fprintf(stderr, "send no label: recv no label (auto off)\n");
+		do_send(fdt, false, 0);
+		do_recv(fdr, false, 0);
+	}
+
+	if (use_flowinfo_send) {
+		fprintf(stderr, "using IPV6_FLOWINFO_SEND to send label\n");
+		addr.sin6_flowinfo = htonl(cfg_label);
+		if (setsockopt(fdt, SOL_IPV6, IPV6_FLOWINFO_SEND, &one,
+			       sizeof(one)) == -1)
+			error(1, errno, "setsockopt flowinfo_send");
+	}
+
+	fprintf(stderr, "send label\n");
+	do_send(fdt, true, cfg_label);
+	do_recv(fdr, true, cfg_label);
+
+	if (close(fdr))
+		error(1, errno, "close r");
+	if (!use_ping && close(fdt))
+		error(1, errno, "close t");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.sh b/tools/testing/selftests/net/ipv6_flowlabel.sh
new file mode 100755
index 000000000000..cee95e252bee
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Regression tests for IPv6 flowlabels
+#
+# run in separate namespaces to avoid mgmt db conflicts betweent tests
+
+set -e
+
+echo "TEST management"
+./in_netns.sh ./ipv6_flowlabel_mgr
+
+echo "TEST datapath"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.auto_flowlabels=0 && ./ipv6_flowlabel -l 1'
+
+echo "TEST datapath (with auto-flowlabels)"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.auto_flowlabels=1 && ./ipv6_flowlabel -l 1'
+
+echo "TEST datapath (with ping-sockets)"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.flowlabel_reflect=4 && \
+    sysctl -q -w net.ipv4.ping_group_range="0 2147483647" && \
+    ./ipv6_flowlabel -l 1 -p'
+
+echo "TEST datapath (with flowinfo-send)"
+./in_netns.sh \
+  sh -c './ipv6_flowlabel -l 1 -s'
+
+echo "TEST datapath (with ping-sockets flowinfo-send)"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.flowlabel_reflect=4 && \
+    sysctl -q -w net.ipv4.ping_group_range="0 2147483647" && \
+    ./ipv6_flowlabel -l 1 -p -s'
+
+echo OK. All tests passed
diff --git a/tools/testing/selftests/net/ipv6_flowlabel_mgr.c b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c
new file mode 100644
index 000000000000..af95b48acea9
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_flowlabel_mgr.c
@@ -0,0 +1,199 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Test IPV6_FLOWINFO_MGR */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/in6.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+/* uapi/glibc weirdness may leave this undefined */
+#ifndef IPV6_FLOWLABEL_MGR
+#define IPV6_FLOWLABEL_MGR	32
+#endif
+
+/* from net/ipv6/ip6_flowlabel.c */
+#define FL_MIN_LINGER		6
+
+#define explain(x)							\
+	do { if (cfg_verbose) fprintf(stderr, "       " x "\n"); } while (0)
+
+#define __expect(x)							\
+	do {								\
+		if (!(x))						\
+			fprintf(stderr, "[OK]   " #x "\n");		\
+		else							\
+			error(1, 0, "[ERR]  " #x " (line %d)", __LINE__); \
+	} while (0)
+
+#define expect_pass(x)	__expect(x)
+#define expect_fail(x)	__expect(!(x))
+
+static bool cfg_long_running;
+static bool cfg_verbose;
+
+static int flowlabel_get(int fd, uint32_t label, uint8_t share, uint16_t flags)
+{
+	struct in6_flowlabel_req req = {
+		.flr_action = IPV6_FL_A_GET,
+		.flr_label = htonl(label),
+		.flr_flags = flags,
+		.flr_share = share,
+	};
+
+	/* do not pass IPV6_ADDR_ANY or IPV6_ADDR_MAPPED */
+	req.flr_dst.s6_addr[0] = 0xfd;
+	req.flr_dst.s6_addr[15] = 0x1;
+
+	return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req));
+}
+
+static int flowlabel_put(int fd, uint32_t label)
+{
+	struct in6_flowlabel_req req = {
+		.flr_action = IPV6_FL_A_PUT,
+		.flr_label = htonl(label),
+	};
+
+	return setsockopt(fd, SOL_IPV6, IPV6_FLOWLABEL_MGR, &req, sizeof(req));
+}
+
+static void run_tests(int fd)
+{
+	int wstatus;
+	pid_t pid;
+
+	explain("cannot get non-existent label");
+	expect_fail(flowlabel_get(fd, 1, IPV6_FL_S_ANY, 0));
+
+	explain("cannot put non-existent label");
+	expect_fail(flowlabel_put(fd, 1));
+
+	explain("cannot create label greater than 20 bits");
+	expect_fail(flowlabel_get(fd, 0x1FFFFF, IPV6_FL_S_ANY,
+				  IPV6_FL_F_CREATE));
+
+	explain("create a new label (FL_F_CREATE)");
+	expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, IPV6_FL_F_CREATE));
+	explain("can get the label (without FL_F_CREATE)");
+	expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, 0));
+	explain("can get it again with create flag set, too");
+	expect_pass(flowlabel_get(fd, 1, IPV6_FL_S_ANY, IPV6_FL_F_CREATE));
+	explain("cannot get it again with the exclusive (FL_FL_EXCL) flag");
+	expect_fail(flowlabel_get(fd, 1, IPV6_FL_S_ANY,
+					 IPV6_FL_F_CREATE | IPV6_FL_F_EXCL));
+	explain("can now put exactly three references");
+	expect_pass(flowlabel_put(fd, 1));
+	expect_pass(flowlabel_put(fd, 1));
+	expect_pass(flowlabel_put(fd, 1));
+	expect_fail(flowlabel_put(fd, 1));
+
+	explain("create a new exclusive label (FL_S_EXCL)");
+	expect_pass(flowlabel_get(fd, 2, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE));
+	explain("cannot get it again in non-exclusive mode");
+	expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_ANY,  IPV6_FL_F_CREATE));
+	explain("cannot get it again in exclusive mode either");
+	expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE));
+	expect_pass(flowlabel_put(fd, 2));
+
+	if (cfg_long_running) {
+		explain("cannot reuse the label, due to linger");
+		expect_fail(flowlabel_get(fd, 2, IPV6_FL_S_ANY,
+					  IPV6_FL_F_CREATE));
+		explain("after sleep, can reuse");
+		sleep(FL_MIN_LINGER * 2 + 1);
+		expect_pass(flowlabel_get(fd, 2, IPV6_FL_S_ANY,
+					  IPV6_FL_F_CREATE));
+	}
+
+	explain("create a new user-private label (FL_S_USER)");
+	expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, IPV6_FL_F_CREATE));
+	explain("cannot get it again in non-exclusive mode");
+	expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_ANY, 0));
+	explain("cannot get it again in exclusive mode");
+	expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_EXCL, 0));
+	explain("can get it again in user mode");
+	expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+	explain("child process can get it too, but not after setuid(nobody)");
+	pid = fork();
+	if (pid == -1)
+		error(1, errno, "fork");
+	if (!pid) {
+		expect_pass(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+		if (setuid(USHRT_MAX))
+			fprintf(stderr, "[INFO] skip setuid child test\n");
+		else
+			expect_fail(flowlabel_get(fd, 3, IPV6_FL_S_USER, 0));
+		exit(0);
+	}
+	if (wait(&wstatus) == -1)
+		error(1, errno, "wait");
+	if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0)
+		error(1, errno, "wait: unexpected child result");
+
+	explain("create a new process-private label (FL_S_PROCESS)");
+	expect_pass(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, IPV6_FL_F_CREATE));
+	explain("can get it again");
+	expect_pass(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, 0));
+	explain("child process cannot can get it");
+	pid = fork();
+	if (pid == -1)
+		error(1, errno, "fork");
+	if (!pid) {
+		expect_fail(flowlabel_get(fd, 4, IPV6_FL_S_PROCESS, 0));
+		exit(0);
+	}
+	if (wait(&wstatus) == -1)
+		error(1, errno, "wait");
+	if (!WIFEXITED(wstatus) || WEXITSTATUS(wstatus) != 0)
+		error(1, errno, "wait: unexpected child result");
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "lv")) != -1) {
+		switch (c) {
+		case 'l':
+			cfg_long_running = true;
+			break;
+		case 'v':
+			cfg_verbose = true;
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int fd;
+
+	parse_opts(argc, argv);
+
+	fd = socket(PF_INET6, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket");
+
+	run_tests(fd);
+
+	if (close(fd))
+		error(1, errno, "close");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/ipv6_force_forwarding.sh b/tools/testing/selftests/net/ipv6_force_forwarding.sh
new file mode 100755
index 000000000000..bf0243366caa
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_force_forwarding.sh
@@ -0,0 +1,105 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test IPv6 force_forwarding interface property
+#
+# This test verifies that the force_forwarding property works correctly:
+# - When global forwarding is disabled, packets are not forwarded normally
+# - When force_forwarding is enabled on an interface, packets are forwarded
+#   regardless of the global forwarding setting
+
+source lib.sh
+
+cleanup() {
+    cleanup_ns $ns1 $ns2 $ns3
+}
+
+trap cleanup EXIT
+
+setup_test() {
+    # Create three namespaces: sender, router, receiver
+    setup_ns ns1 ns2 ns3
+
+    # Create veth pairs: ns1 <-> ns2 <-> ns3
+    ip link add name veth12 type veth peer name veth21
+    ip link add name veth23 type veth peer name veth32
+
+    # Move interfaces to namespaces
+    ip link set veth12 netns $ns1
+    ip link set veth21 netns $ns2
+    ip link set veth23 netns $ns2
+    ip link set veth32 netns $ns3
+
+    # Configure interfaces
+    ip -n $ns1 addr add 2001:db8:1::1/64 dev veth12 nodad
+    ip -n $ns2 addr add 2001:db8:1::2/64 dev veth21 nodad
+    ip -n $ns2 addr add 2001:db8:2::1/64 dev veth23 nodad
+    ip -n $ns3 addr add 2001:db8:2::2/64 dev veth32 nodad
+
+    # Bring up interfaces
+    ip -n $ns1 link set veth12 up
+    ip -n $ns2 link set veth21 up
+    ip -n $ns2 link set veth23 up
+    ip -n $ns3 link set veth32 up
+
+    # Add routes
+    ip -n $ns1 route add 2001:db8:2::/64 via 2001:db8:1::2
+    ip -n $ns3 route add 2001:db8:1::/64 via 2001:db8:2::1
+
+    # Disable global forwarding
+    ip netns exec $ns2 sysctl -qw net.ipv6.conf.all.forwarding=0
+}
+
+test_force_forwarding() {
+    local ret=0
+
+    echo "TEST: force_forwarding functionality"
+
+    # Check if force_forwarding sysctl exists
+    if ! ip netns exec $ns2 test -f /proc/sys/net/ipv6/conf/veth21/force_forwarding; then
+        echo "SKIP: force_forwarding not available"
+        return $ksft_skip
+    fi
+
+    # Test 1: Without force_forwarding, ping should fail
+    ip netns exec $ns2 sysctl -qw net.ipv6.conf.veth21.force_forwarding=0
+    ip netns exec $ns2 sysctl -qw net.ipv6.conf.veth23.force_forwarding=0
+
+    if ip netns exec $ns1 ping -6 -c 1 -W 2 2001:db8:2::2 &>/dev/null; then
+        echo "FAIL: ping succeeded when forwarding disabled"
+        ret=1
+    else
+        echo "PASS: forwarding disabled correctly"
+    fi
+
+    # Test 2: With force_forwarding enabled, ping should succeed
+    ip netns exec $ns2 sysctl -qw net.ipv6.conf.veth21.force_forwarding=1
+    ip netns exec $ns2 sysctl -qw net.ipv6.conf.veth23.force_forwarding=1
+
+    if ip netns exec $ns1 ping -6 -c 1 -W 2 2001:db8:2::2 &>/dev/null; then
+        echo "PASS: force_forwarding enabled forwarding"
+    else
+        echo "FAIL: ping failed with force_forwarding enabled"
+        ret=1
+    fi
+
+    return $ret
+}
+
+echo "IPv6 force_forwarding test"
+echo "=========================="
+
+setup_test
+test_force_forwarding
+ret=$?
+
+if [ $ret -eq 0 ]; then
+    echo "OK"
+    exit 0
+elif [ $ret -eq $ksft_skip ]; then
+    echo "SKIP"
+    exit $ksft_skip
+else
+    echo "FAIL"
+    exit 1
+fi
diff --git a/tools/testing/selftests/net/ipv6_fragmentation.c b/tools/testing/selftests/net/ipv6_fragmentation.c
new file mode 100644
index 000000000000..672c9fe086a7
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_fragmentation.c
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Author: Brett A C Sheffield <bacs@librecast.net>
+ *
+ * Kernel selftest for the IPv6 fragmentation regression which affected stable
+ * kernels:
+ *
+ *   https://lore.kernel.org/stable/aElivdUXqd1OqgMY@karahi.gladserv.com
+ *
+ * Commit: a18dfa9925b9 ("ipv6: save dontfrag in cork") was backported to stable
+ * without some prerequisite commits.
+ *
+ * This caused a regression when sending IPv6 UDP packets by preventing
+ * fragmentation and instead returning -1 (EMSGSIZE).
+ *
+ * This selftest demonstrates the issue by sending an IPv6 UDP packet to
+ * localhost (::1) on the loopback interface from the autoconfigured link-local
+ * address.
+ *
+ * sendmsg(2) returns bytes sent correctly on a working kernel, and returns -1
+ * (EMSGSIZE) when the regression is present.
+ *
+ * The regression was not present in the mainline kernel, but add this test to
+ * catch similar breakage in future.
+ */
+
+#define _GNU_SOURCE
+
+#include <error.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <sched.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include "kselftest.h"
+
+#define MTU 1500
+#define LARGER_THAN_MTU 8192
+
+static void setup(void)
+{
+	struct ifreq ifr = {
+		.ifr_name = "lo"
+	};
+	int ctl;
+
+	/* we need to set MTU, so do this in a namespace to play nicely */
+	if (unshare(CLONE_NEWNET) == -1)
+		error(KSFT_FAIL, errno, "unshare");
+
+	ctl = socket(AF_LOCAL, SOCK_STREAM, 0);
+	if (ctl == -1)
+		error(KSFT_FAIL, errno, "socket");
+
+	/* ensure MTU is smaller than what we plan to send */
+	ifr.ifr_mtu = MTU;
+	if (ioctl(ctl, SIOCSIFMTU, &ifr) == -1)
+		error(KSFT_FAIL, errno, "ioctl: set MTU");
+
+	/* bring up interface */
+	if (ioctl(ctl, SIOCGIFFLAGS, &ifr) == -1)
+		error(KSFT_FAIL, errno, "ioctl SIOCGIFFLAGS");
+	ifr.ifr_flags = ifr.ifr_flags | IFF_UP;
+	if (ioctl(ctl, SIOCSIFFLAGS, &ifr) == -1)
+		error(KSFT_FAIL, errno, "ioctl: bring interface up");
+
+	if (close(ctl) == -1)
+		error(KSFT_FAIL, errno, "close");
+}
+
+int main(void)
+{
+	struct in6_addr addr = {
+		.s6_addr[15] = 0x01,  /* ::1 */
+	};
+	struct sockaddr_in6 sa = {
+		.sin6_family = AF_INET6,
+		.sin6_addr = addr,
+		.sin6_port = htons(9) /* port 9/udp (DISCARD) */
+	};
+	static char buf[LARGER_THAN_MTU] = {0};
+	struct iovec iov = { .iov_base = buf, .iov_len = sizeof(buf) };
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_name = (struct sockaddr *)&sa,
+		.msg_namelen = sizeof(sa),
+	};
+	ssize_t rc;
+	int s;
+
+	printf("Testing IPv6 fragmentation\n");
+	setup();
+	s = socket(AF_INET6, SOCK_DGRAM, 0);
+send_again:
+	rc = sendmsg(s, &msg, 0);
+	if (rc == -1) {
+		/* if interface wasn't ready, try again */
+		if (errno == EADDRNOTAVAIL) {
+			usleep(1000);
+			goto send_again;
+		}
+		error(KSFT_FAIL, errno, "sendmsg");
+	} else if (rc != LARGER_THAN_MTU) {
+		error(KSFT_FAIL, errno, "sendmsg returned %zi, expected %i",
+				rc, LARGER_THAN_MTU);
+	}
+	printf("[PASS] sendmsg() returned %zi\n", rc);
+	if (close(s) == -1)
+		error(KSFT_FAIL, errno, "close");
+	return KSFT_PASS;
+}
diff --git a/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh b/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh
new file mode 100755
index 000000000000..c6866e42f95c
--- /dev/null
+++ b/tools/testing/selftests/net/ipv6_route_update_soft_lockup.sh
@@ -0,0 +1,261 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing for potential kernel soft lockup during IPv6 routing table
+# refresh under heavy outgoing IPv6 traffic. If a kernel soft lockup
+# occurs, a kernel panic will be triggered to prevent associated issues.
+#
+#
+#                            Test Environment Layout
+#
+# ┌----------------┐                                         ┌----------------┐
+# |     SOURCE_NS  |                                         |     SINK_NS    |
+# |    NAMESPACE   |                                         |    NAMESPACE   |
+# |(iperf3 clients)|                                         |(iperf3 servers)|
+# |                |                                         |                |
+# |                |                                         |                |
+# |    ┌-----------|                             nexthops    |---------┐      |
+# |    |veth_source|<--------------------------------------->|veth_sink|<┐    |
+# |    └-----------|2001:0DB8:1::0:1/96  2001:0DB8:1::1:1/96 |---------┘ |    |
+# |                |         ^           2001:0DB8:1::1:2/96 |           |    |
+# |                |         .                   .           |       fwd |    |
+# |  ┌---------┐   |         .                   .           |           |    |
+# |  |   IPv6  |   |         .                   .           |           V    |
+# |  | routing |   |         .           2001:0DB8:1::1:80/96|        ┌-----┐ |
+# |  |  table  |   |         .                               |        | lo  | |
+# |  | nexthop |   |         .                               └--------┴-----┴-┘
+# |  | update  |   |         ............................> 2001:0DB8:2::1:1/128
+# |  └-------- ┘   |
+# └----------------┘
+#
+# The test script sets up two network namespaces, source_ns and sink_ns,
+# connected via a veth link. Within source_ns, it continuously updates the
+# IPv6 routing table by flushing and inserting IPV6_NEXTHOP_ADDR_COUNT nexthop
+# IPs destined for SINK_LOOPBACK_IP_ADDR in sink_ns. This refresh occurs at a
+# rate of 1/ROUTING_TABLE_REFRESH_PERIOD per second for TEST_DURATION seconds.
+#
+# Simultaneously, multiple iperf3 clients within source_ns generate heavy
+# outgoing IPv6 traffic. Each client is assigned a unique port number starting
+# at 5000 and incrementing sequentially. Each client targets a unique iperf3
+# server running in sink_ns, connected to the SINK_LOOPBACK_IFACE interface
+# using the same port number.
+#
+# The number of iperf3 servers and clients is set to half of the total
+# available cores on each machine.
+#
+# NOTE: We have tested this script on machines with various CPU specifications,
+# ranging from lower to higher performance as listed below. The test script
+# effectively triggered a kernel soft lockup on machines running an unpatched
+# kernel in under a minute:
+#
+# - 1x Intel Xeon E-2278G 8-Core Processor @ 3.40GHz
+# - 1x Intel Xeon E-2378G Processor 8-Core @ 2.80GHz
+# - 1x AMD EPYC 7401P 24-Core Processor @ 2.00GHz
+# - 1x AMD EPYC 7402P 24-Core Processor @ 2.80GHz
+# - 2x Intel Xeon Gold 5120 14-Core Processor @ 2.20GHz
+# - 1x Ampere Altra Q80-30 80-Core Processor @ 3.00GHz
+# - 2x Intel Xeon Gold 5120 14-Core Processor @ 2.20GHz
+# - 2x Intel Xeon Silver 4214 24-Core Processor @ 2.20GHz
+# - 1x AMD EPYC 7502P 32-Core @ 2.50GHz
+# - 1x Intel Xeon Gold 6314U 32-Core Processor @ 2.30GHz
+# - 2x Intel Xeon Gold 6338 32-Core Processor @ 2.00GHz
+#
+# On less performant machines, you may need to increase the TEST_DURATION
+# parameter to enhance the likelihood of encountering a race condition leading
+# to a kernel soft lockup and avoid a false negative result.
+#
+# NOTE: The test may not produce the expected result in virtualized
+# environments (e.g., qemu) due to differences in timing and CPU handling,
+# which can affect the conditions needed to trigger a soft lockup.
+
+source lib.sh
+
+TEST_DURATION=300
+ROUTING_TABLE_REFRESH_PERIOD=0.01
+
+IPERF3_BITRATE="300m"
+
+
+IPV6_NEXTHOP_ADDR_COUNT="128"
+IPV6_NEXTHOP_ADDR_MASK="96"
+IPV6_NEXTHOP_PREFIX="2001:0DB8:1"
+
+
+SOURCE_TEST_IFACE="veth_source"
+SOURCE_TEST_IP_ADDR="2001:0DB8:1::0:1/96"
+
+SINK_TEST_IFACE="veth_sink"
+# ${SINK_TEST_IFACE} is populated with the following range of IPv6 addresses:
+# 2001:0DB8:1::1:1  to 2001:0DB8:1::1:${IPV6_NEXTHOP_ADDR_COUNT}
+SINK_LOOPBACK_IFACE="lo"
+SINK_LOOPBACK_IP_MASK="128"
+SINK_LOOPBACK_IP_ADDR="2001:0DB8:2::1:1"
+
+nexthop_ip_list=""
+termination_signal=""
+kernel_softlokup_panic_prev_val=""
+
+terminate_ns_processes_by_pattern() {
+	local ns=$1
+	local pattern=$2
+
+	for pid in $(ip netns pids ${ns}); do
+		[ -e /proc/$pid/cmdline ] && grep -qe "${pattern}" /proc/$pid/cmdline && kill -9 $pid
+	done
+}
+
+cleanup() {
+	echo "info: cleaning up namespaces and terminating all processes within them..."
+
+
+	# Terminate iperf3 instances running in the source_ns. To avoid race
+	# conditions, first iterate over the PIDs and terminate those
+	# associated with the bash shells running the
+	# `while true; do iperf3 -c ...; done` loops. In a second iteration,
+	# terminate the individual `iperf3 -c ...` instances.
+	terminate_ns_processes_by_pattern ${source_ns} while
+	terminate_ns_processes_by_pattern ${source_ns} iperf3
+
+	# Repeat the same process for sink_ns
+	terminate_ns_processes_by_pattern ${sink_ns} while
+	terminate_ns_processes_by_pattern ${sink_ns} iperf3
+
+	# Check if any iperf3 instances are still running. This could happen
+	# if a core has entered an infinite loop and the timeout for detecting
+	# the soft lockup has not expired, but either the test interval has
+	# already elapsed or the test was terminated manually (e.g., with ^C)
+	for pid in $(ip netns pids ${source_ns}); do
+		if [ -e /proc/$pid/cmdline ] && grep -qe 'iperf3' /proc/$pid/cmdline; then
+			echo "FAIL: unable to terminate some iperf3 instances. Soft lockup is underway. A kernel panic is on the way!"
+			exit ${ksft_fail}
+		fi
+	done
+
+	if [ "$termination_signal" == "SIGINT" ]; then
+		echo "SKIP: Termination due to ^C (SIGINT)"
+	elif [ "$termination_signal" == "SIGALRM" ]; then
+		echo "PASS: No kernel soft lockup occurred during this ${TEST_DURATION} second test"
+	fi
+
+	cleanup_ns ${source_ns} ${sink_ns}
+
+	sysctl -qw kernel.softlockup_panic=${kernel_softlokup_panic_prev_val}
+}
+
+setup_prepare() {
+	setup_ns source_ns sink_ns
+
+	ip -n ${source_ns} link add name ${SOURCE_TEST_IFACE} type veth peer name ${SINK_TEST_IFACE} netns ${sink_ns}
+
+	# Setting up the Source namespace
+	ip -n ${source_ns} addr add ${SOURCE_TEST_IP_ADDR} dev ${SOURCE_TEST_IFACE}
+	ip -n ${source_ns} link set dev ${SOURCE_TEST_IFACE} qlen 10000
+	ip -n ${source_ns} link set dev ${SOURCE_TEST_IFACE} up
+	ip netns exec ${source_ns} sysctl -qw net.ipv6.fib_multipath_hash_policy=1
+
+	# Setting up the Sink namespace
+	ip -n ${sink_ns} addr add ${SINK_LOOPBACK_IP_ADDR}/${SINK_LOOPBACK_IP_MASK} dev ${SINK_LOOPBACK_IFACE}
+	ip -n ${sink_ns} link set dev ${SINK_LOOPBACK_IFACE} up
+	ip netns exec ${sink_ns} sysctl -qw net.ipv6.conf.${SINK_LOOPBACK_IFACE}.forwarding=1
+
+	ip -n ${sink_ns} link set ${SINK_TEST_IFACE} up
+	ip netns exec ${sink_ns} sysctl -qw net.ipv6.conf.${SINK_TEST_IFACE}.forwarding=1
+
+
+	# Populate nexthop IPv6 addresses on the test interface in the sink_ns
+	echo "info: populating ${IPV6_NEXTHOP_ADDR_COUNT} IPv6 addresses on the ${SINK_TEST_IFACE} interface ..."
+	for IP in $(seq 1 ${IPV6_NEXTHOP_ADDR_COUNT}); do
+		ip -n ${sink_ns} addr add ${IPV6_NEXTHOP_PREFIX}::$(printf "1:%x" "${IP}")/${IPV6_NEXTHOP_ADDR_MASK} dev ${SINK_TEST_IFACE};
+	done
+
+	# Preparing list of nexthops
+	for IP in $(seq 1 ${IPV6_NEXTHOP_ADDR_COUNT}); do
+		nexthop_ip_list=$nexthop_ip_list" nexthop via ${IPV6_NEXTHOP_PREFIX}::$(printf "1:%x" $IP) dev ${SOURCE_TEST_IFACE} weight 1"
+	done
+}
+
+
+test_soft_lockup_during_routing_table_refresh() {
+	# Start num_of_iperf_servers iperf3 servers in the sink_ns namespace,
+	# each listening on ports starting at 5001 and incrementing
+	# sequentially. Since iperf3 instances may terminate unexpectedly, a
+	# while loop is used to automatically restart them in such cases.
+	echo "info: starting ${num_of_iperf_servers} iperf3 servers in the sink_ns namespace ..."
+	for i in $(seq 1 ${num_of_iperf_servers}); do
+		cmd="iperf3 --bind ${SINK_LOOPBACK_IP_ADDR} -s -p $(printf '5%03d' ${i}) --rcv-timeout 200 &>/dev/null"
+		ip netns exec ${sink_ns} bash -c "while true; do ${cmd}; done &" &>/dev/null
+	done
+
+	# Wait for the iperf3 servers to be ready
+	for i in $(seq ${num_of_iperf_servers}); do
+		port=$(printf '5%03d' ${i});
+		wait_local_port_listen ${sink_ns} ${port} tcp
+	done
+
+	# Continuously refresh the routing table in the background within
+	# the source_ns namespace
+	ip netns exec ${source_ns} bash -c "
+		while \$(ip netns list | grep -q ${source_ns}); do
+			ip -6 route add ${SINK_LOOPBACK_IP_ADDR}/${SINK_LOOPBACK_IP_MASK} ${nexthop_ip_list};
+			sleep ${ROUTING_TABLE_REFRESH_PERIOD};
+			ip -6 route delete ${SINK_LOOPBACK_IP_ADDR}/${SINK_LOOPBACK_IP_MASK};
+		done &"
+
+	# Start num_of_iperf_servers iperf3 clients in the source_ns namespace,
+	# each sending TCP traffic on sequential ports starting at 5001.
+	# Since iperf3 instances may terminate unexpectedly (e.g., if the route
+	# to the server is deleted in the background during a route refresh), a
+	# while loop is used to automatically restart them in such cases.
+	echo "info: starting ${num_of_iperf_servers} iperf3 clients in the source_ns namespace ..."
+	for i in $(seq 1 ${num_of_iperf_servers}); do
+		cmd="iperf3 -c ${SINK_LOOPBACK_IP_ADDR} -p $(printf '5%03d' ${i}) --length 64 --bitrate ${IPERF3_BITRATE} -t 0 --connect-timeout 150 &>/dev/null"
+		ip netns exec ${source_ns} bash -c "while true; do ${cmd}; done &" &>/dev/null
+	done
+
+	echo "info: IPv6 routing table is being updated at the rate of $(echo "1/${ROUTING_TABLE_REFRESH_PERIOD}" | bc)/s for ${TEST_DURATION} seconds ..."
+	echo "info: A kernel soft lockup, if detected, results in a kernel panic!"
+
+	wait
+}
+
+# Make sure 'iperf3' is installed, skip the test otherwise
+if [ ! -x "$(command -v "iperf3")" ]; then
+	echo "SKIP: 'iperf3' is not installed. Skipping the test."
+	exit ${ksft_skip}
+fi
+
+# Determine the number of cores on the machine
+num_of_iperf_servers=$(( $(nproc)/2 ))
+
+# Check if we are running on a multi-core machine, skip the test otherwise
+if [ "${num_of_iperf_servers}" -eq 0 ]; then
+	echo "SKIP: This test is not valid on a single core machine!"
+	exit ${ksft_skip}
+fi
+
+# Since the kernel soft lockup we're testing causes at least one core to enter
+# an infinite loop, destabilizing the host and likely affecting subsequent
+# tests, we trigger a kernel panic instead of reporting a failure and
+# continuing
+kernel_softlokup_panic_prev_val=$(sysctl -n kernel.softlockup_panic)
+sysctl -qw kernel.softlockup_panic=1
+
+handle_sigint() {
+	termination_signal="SIGINT"
+	cleanup
+	exit ${ksft_skip}
+}
+
+handle_sigalrm() {
+	termination_signal="SIGALRM"
+	cleanup
+	exit ${ksft_pass}
+}
+
+trap handle_sigint SIGINT
+trap handle_sigalrm SIGALRM
+
+(sleep ${TEST_DURATION} && kill -s SIGALRM $$)&
+
+setup_prepare
+test_soft_lockup_during_routing_table_refresh
diff --git a/tools/testing/selftests/net/l2_tos_ttl_inherit.sh b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh
new file mode 100755
index 000000000000..f11756e7df2f
--- /dev/null
+++ b/tools/testing/selftests/net/l2_tos_ttl_inherit.sh
@@ -0,0 +1,446 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Author: Matthias May <matthias.may@westermo.com>
+#
+# This script evaluates ip tunnels that are capable of carrying L2 traffic
+# if they inherit or set the inheritable fields.
+# Namely these tunnels are: 'gretap', 'vxlan' and 'geneve'.
+# Checked inheritable fields are: TOS and TTL.
+# The outer tunnel protocol of 'IPv4' or 'IPv6' is verified-
+# As payload frames of type 'IPv4', 'IPv6' and 'other'(ARP) are verified.
+# In addition this script also checks if forcing a specific field in the
+# outer header is working.
+
+# Return 4 by default (Kselftest SKIP code)
+ERR=4
+
+if [ "$(id -u)" != "0" ]; then
+	echo "Please run as root."
+	exit $ERR
+fi
+if ! which tcpdump > /dev/null 2>&1; then
+	echo "No tcpdump found. Required for this test."
+	exit $ERR
+fi
+
+expected_tos="0x00"
+expected_ttl="0"
+failed=false
+
+readonly NS0=$(mktemp -u ns0-XXXXXXXX)
+readonly NS1=$(mktemp -u ns1-XXXXXXXX)
+
+RUN_NS0="ip netns exec ${NS0}"
+
+get_random_tos() {
+	# Get a random hex tos value between 0x00 and 0xfc, a multiple of 4
+	echo "0x$(tr -dc '0-9a-f' < /dev/urandom | head -c 1)\
+$(tr -dc '048c' < /dev/urandom | head -c 1)"
+}
+get_random_ttl() {
+	# Get a random dec value between 0 and 255
+	printf "%d" "0x$(tr -dc '0-9a-f' < /dev/urandom | head -c 2)"
+}
+get_field() {
+	# Expects to get the 'head -n 1' of a captured frame by tcpdump.
+	# Parses this first line and returns the specified field.
+	local field="$1"
+	local input="$2"
+	local found=false
+	input="$(echo "$input" | tr -d '(),')"
+	for input_field in $input; do
+		if $found; then
+			echo "$input_field"
+			return
+		fi
+		# The next field that we iterate over is the looked for value
+		if [ "$input_field" = "$field" ]; then
+			found=true
+		fi
+	done
+	echo "0"
+}
+setup() {
+	local type="$1"
+	local outer="$2"
+	local inner="$3"
+	local tos_ttl="$4"
+	local vlan="$5"
+	local test_tos="0x00"
+	local test_ttl="0"
+
+	# We don't want a test-tos of 0x00,
+	# because this is the value that we get when no tos is set.
+	expected_tos="$(get_random_tos)"
+	while [ "$expected_tos" = "0x00" ]; do
+		expected_tos="$(get_random_tos)"
+	done
+	if [ "$tos_ttl" = "random" ]; then
+		test_tos="$expected_tos"
+		tos="fixed $test_tos"
+	elif [ "$tos_ttl" = "inherit" ]; then
+		test_tos="$tos_ttl"
+		tos="inherit $expected_tos"
+	fi
+
+	# We don't want a test-ttl of 64 or 0,
+	# because 64 is when no ttl is set and 0 is not a valid ttl.
+	expected_ttl="$(get_random_ttl)"
+	while [ "$expected_ttl" = "64" ] || [ "$expected_ttl" = "0" ]; do
+		expected_ttl="$(get_random_ttl)"
+	done
+
+	if [ "$tos_ttl" = "random" ]; then
+		test_ttl="$expected_ttl"
+		ttl="fixed $test_ttl"
+	elif [ "$tos_ttl" = "inherit" ]; then
+		test_ttl="$tos_ttl"
+		ttl="inherit $expected_ttl"
+	fi
+	printf "│%7s │%6s │%6s │%13s │%13s │%6s │" \
+	"$type" "$outer" "$inner" "$tos" "$ttl" "$vlan"
+
+	# Create netns NS0 and NS1 and connect them with a veth pair
+	ip netns add "${NS0}"
+	ip netns add "${NS1}"
+	ip link add name veth0 netns "${NS0}" type veth \
+		peer name veth1 netns "${NS1}"
+	ip -netns "${NS0}" link set dev veth0 up
+	ip -netns "${NS1}" link set dev veth1 up
+	ip -netns "${NS0}" address flush dev veth0
+	ip -netns "${NS1}" address flush dev veth1
+
+	local local_addr1=""
+	local local_addr2=""
+	if [ "$type" = "gre" ] || [ "$type" = "vxlan" ]; then
+		if [ "$outer" = "4" ]; then
+			local_addr1="local 198.18.0.1"
+			local_addr2="local 198.18.0.2"
+		elif [ "$outer" = "6" ]; then
+			local_addr1="local fdd1:ced0:5d88:3fce::1"
+			local_addr2="local fdd1:ced0:5d88:3fce::2"
+		fi
+	fi
+	local vxlan=""
+	if [ "$type" = "vxlan" ]; then
+		vxlan="vni 100 dstport 4789"
+	fi
+	local geneve=""
+	if [ "$type" = "geneve" ]; then
+		geneve="vni 100"
+	fi
+	# Create tunnel and assign outer IPv4/IPv6 addresses
+	if [ "$outer" = "4" ]; then
+		if [ "$type" = "gre" ]; then
+			type="gretap"
+		fi
+		ip -netns "${NS0}" address add 198.18.0.1/24 dev veth0
+		ip -netns "${NS1}" address add 198.18.0.2/24 dev veth1
+		ip -netns "${NS0}" link add name tep0 type $type $local_addr1 \
+			remote 198.18.0.2 tos $test_tos ttl $test_ttl         \
+			$vxlan $geneve
+		ip -netns "${NS1}" link add name tep1 type $type $local_addr2 \
+			remote 198.18.0.1 tos $test_tos ttl $test_ttl         \
+			$vxlan $geneve
+	elif [ "$outer" = "6" ]; then
+		if [ "$type" = "gre" ]; then
+			type="ip6gretap"
+		fi
+		ip -netns "${NS0}" address add fdd1:ced0:5d88:3fce::1/64 \
+			dev veth0 nodad
+		ip -netns "${NS1}" address add fdd1:ced0:5d88:3fce::2/64 \
+			dev veth1 nodad
+		ip -netns "${NS0}" link add name tep0 type $type $local_addr1 \
+			remote fdd1:ced0:5d88:3fce::2 tos $test_tos           \
+			ttl $test_ttl $vxlan $geneve
+		ip -netns "${NS1}" link add name tep1 type $type $local_addr2 \
+			remote fdd1:ced0:5d88:3fce::1 tos $test_tos           \
+			ttl $test_ttl $vxlan $geneve
+	fi
+
+	# Bring L2-tunnel link up and create VLAN on top
+	ip -netns "${NS0}" link set tep0 up
+	ip -netns "${NS1}" link set tep1 up
+	ip -netns "${NS0}" address flush dev tep0
+	ip -netns "${NS1}" address flush dev tep1
+	local parent
+	if $vlan; then
+		parent="vlan99-"
+		ip -netns "${NS0}" link add link tep0 name ${parent}0 \
+			type vlan id 99
+		ip -netns "${NS1}" link add link tep1 name ${parent}1 \
+			type vlan id 99
+		ip -netns "${NS0}" link set dev ${parent}0 up
+		ip -netns "${NS1}" link set dev ${parent}1 up
+		ip -netns "${NS0}" address flush dev ${parent}0
+		ip -netns "${NS1}" address flush dev ${parent}1
+	else
+		parent="tep"
+	fi
+
+	# Assign inner IPv4/IPv6 addresses
+	if [ "$inner" = "4" ] || [ "$inner" = "other" ]; then
+		ip -netns "${NS0}" address add 198.19.0.1/24 brd + dev ${parent}0
+		ip -netns "${NS1}" address add 198.19.0.2/24 brd + dev ${parent}1
+	elif [ "$inner" = "6" ]; then
+		ip -netns "${NS0}" address add fdd4:96cf:4eae:443b::1/64 \
+			dev ${parent}0 nodad
+		ip -netns "${NS1}" address add fdd4:96cf:4eae:443b::2/64 \
+			dev ${parent}1 nodad
+	fi
+}
+
+verify() {
+	local outer="$1"
+	local inner="$2"
+	local tos_ttl="$3"
+	local vlan="$4"
+
+	local ping_pid out captured_tos captured_ttl result
+
+	local ping_dst
+	if [ "$inner" = "4" ]; then
+		ping_dst="198.19.0.2"
+	elif [ "$inner" = "6" ]; then
+		ping_dst="fdd4:96cf:4eae:443b::2"
+	elif [ "$inner" = "other" ]; then
+		ping_dst="198.19.0.3" # Generates ARPs which are not IPv4/IPv6
+	fi
+	if [ "$tos_ttl" = "inherit" ]; then
+		${RUN_NS0} ping -i 0.1 $ping_dst -Q "$expected_tos"          \
+			 -t "$expected_ttl" 2>/dev/null 1>&2 & ping_pid="$!"
+	else
+		${RUN_NS0} ping -i 0.1 $ping_dst 2>/dev/null 1>&2 & ping_pid="$!"
+	fi
+	local tunnel_type_offset tunnel_type_proto req_proto_offset req_offset
+	if [ "$type" = "gre" ]; then
+		tunnel_type_proto="0x2f"
+	elif [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+		tunnel_type_proto="0x11"
+	fi
+	if [ "$outer" = "4" ]; then
+		tunnel_type_offset="9"
+		if [ "$inner" = "4" ]; then
+			req_proto_offset="47"
+			req_offset="58"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 12))"
+				req_offset="$((req_offset + 12))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip[$req_proto_offset] = 0x01 and              \
+				ip[$req_offset] = 0x08 2>/dev/null            \
+				| head -n 1)"
+		elif [ "$inner" = "6" ]; then
+			req_proto_offset="44"
+			req_offset="78"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 12))"
+				req_offset="$((req_offset + 12))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip[$req_proto_offset] = 0x3a and              \
+				ip[$req_offset] = 0x80 2>/dev/null            \
+				| head -n 1)"
+		elif [ "$inner" = "other" ]; then
+			req_proto_offset="36"
+			req_offset="45"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 12))"
+				req_offset="$((req_offset + 12))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			if [ "$tos_ttl" = "inherit" ]; then
+				expected_tos="0x00"
+				expected_ttl="64"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip[$req_proto_offset] = 0x08 and              \
+				ip[$((req_proto_offset + 1))] = 0x06 and      \
+				ip[$req_offset] = 0x01 2>/dev/null            \
+				| head -n 1)"
+		fi
+	elif [ "$outer" = "6" ]; then
+		if [ "$type" = "gre" ]; then
+			tunnel_type_offset="40"
+		elif [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+			tunnel_type_offset="6"
+		fi
+		if [ "$inner" = "4" ]; then
+			local req_proto_offset="75"
+			local req_offset="86"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip6[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip6[$req_proto_offset] = 0x01 and             \
+				ip6[$req_offset] = 0x08 2>/dev/null           \
+				| head -n 1)"
+		elif [ "$inner" = "6" ]; then
+			local req_proto_offset="72"
+			local req_offset="106"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip6[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip6[$req_proto_offset] = 0x3a and             \
+				ip6[$req_offset] = 0x80 2>/dev/null           \
+				| head -n 1)"
+		elif [ "$inner" = "other" ]; then
+			local req_proto_offset="64"
+			local req_offset="73"
+			if [ "$type" = "vxlan" ] || [ "$type" = "geneve" ]; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			if $vlan; then
+				req_proto_offset="$((req_proto_offset + 4))"
+				req_offset="$((req_offset + 4))"
+			fi
+			if [ "$tos_ttl" = "inherit" ]; then
+				expected_tos="0x00"
+				expected_ttl="64"
+			fi
+			out="$(${RUN_NS0} tcpdump --immediate-mode -p -c 1 -v \
+				-i veth0 -n                                   \
+				ip6[$tunnel_type_offset] = $tunnel_type_proto and \
+				ip6[$req_proto_offset] = 0x08 and             \
+				ip6[$((req_proto_offset + 1))] = 0x06 and     \
+				ip6[$req_offset] = 0x01 2>/dev/null           \
+				| head -n 1)"
+		fi
+	fi
+	kill -9 $ping_pid
+	wait $ping_pid 2>/dev/null || true
+	result="FAIL"
+	if [ "$outer" = "4" ]; then
+		captured_ttl="$(get_field "ttl" "$out")"
+		captured_tos="$(printf "0x%02x" "$(get_field "tos" "$out")")"
+		if [ "$captured_tos" = "$expected_tos" ] &&
+		   [ "$captured_ttl" = "$expected_ttl" ]; then
+			result="OK"
+		fi
+	elif [ "$outer" = "6" ]; then
+		captured_ttl="$(get_field "hlim" "$out")"
+		captured_tos="$(printf "0x%02x" "$(get_field "class" "$out")")"
+		if [ "$captured_tos" = "$expected_tos" ] &&
+		   [ "$captured_ttl" = "$expected_ttl" ]; then
+			result="OK"
+		fi
+	fi
+
+	printf "%7s │\n" "$result"
+	if [ "$result" = "FAIL" ]; then
+		failed=true
+		if [ "$captured_tos" != "$expected_tos" ]; then
+			printf "│%43s%27s │\n" \
+			"Expected TOS value: $expected_tos" \
+			"Captured TOS value: $captured_tos"
+		fi
+		if [ "$captured_ttl" != "$expected_ttl" ]; then
+			printf "│%43s%27s │\n" \
+			"Expected TTL value: $expected_ttl" \
+			"Captured TTL value: $captured_ttl"
+		fi
+		printf "│%71s│\n" " "
+	fi
+}
+
+cleanup() {
+	ip netns del "${NS0}" 2>/dev/null
+	ip netns del "${NS1}" 2>/dev/null
+}
+
+exit_handler() {
+	# Don't exit immediately if one of the intermediate commands fails.
+	# We might be called at the end of the script, when the network
+	# namespaces have already been deleted. So cleanup() may fail, but we
+	# still need to run until 'exit $ERR' or the script won't return the
+	# correct error code.
+	set +e
+
+	cleanup
+
+	exit $ERR
+}
+
+# Restore the default SIGINT handler (just in case) and exit.
+# The exit handler will take care of cleaning everything up.
+interrupted() {
+	trap - INT
+
+	exit $ERR
+}
+
+set -e
+trap exit_handler EXIT
+trap interrupted INT
+
+printf "┌────────┬───────┬───────┬──────────────┬"
+printf "──────────────┬───────┬────────┐\n"
+for type in gre vxlan geneve; do
+	if ! $(modprobe "$type" 2>/dev/null); then
+		continue
+	fi
+	for outer in 4 6; do
+		printf "├────────┼───────┼───────┼──────────────┼"
+		printf "──────────────┼───────┼────────┤\n"
+		printf "│  Type  │ outer | inner │     tos      │"
+		printf "      ttl     │  vlan │ result │\n"
+		for inner in 4 6 other; do
+			printf "├────────┼───────┼───────┼──────────────┼"
+			printf "──────────────┼───────┼────────┤\n"
+			for tos_ttl in inherit random; do
+				for vlan in false true; do
+					setup "$type" "$outer" "$inner" \
+					"$tos_ttl" "$vlan"
+					verify "$outer" "$inner" "$tos_ttl" \
+					"$vlan"
+					cleanup
+				done
+			done
+		done
+	done
+done
+printf "└────────┴───────┴───────┴──────────────┴"
+printf "──────────────┴───────┴────────┘\n"
+
+# All tests done.
+# Set ERR appropriately: it will be returned by the exit handler.
+if $failed; then
+	ERR=1
+else
+	ERR=0
+fi
diff --git a/tools/testing/selftests/net/l2tp.sh b/tools/testing/selftests/net/l2tp.sh
new file mode 100755
index 000000000000..88de7166c8ae
--- /dev/null
+++ b/tools/testing/selftests/net/l2tp.sh
@@ -0,0 +1,376 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# L2TPv3 tunnel between 2 hosts
+#
+#            host-1          |   router   |     host-2
+#                            |            |
+#      lo          l2tp      |            |      l2tp           lo
+# 172.16.101.1  172.16.1.1   |            | 172.16.1.2    172.16.101.2
+#  fc00:101::1   fc00:1::1   |            |   fc00:1::2    fc00:101::2
+#                            |            |
+#                  eth0      |            |     eth0
+#                10.1.1.1    |            |   10.1.2.1
+#              2001:db8:1::1 |            | 2001:db8:2::1
+
+source lib.sh
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+#
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+run_cmd()
+{
+	local ns
+	local cmd
+	local out
+	local rc
+
+	ns="$1"
+	shift
+	cmd="$*"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+	fi
+
+	out=$(eval ip netns exec ${ns} ${cmd} 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+################################################################################
+# create namespaces and interconnects
+
+create_ns()
+{
+	local ns=$1
+	local addr=$2
+	local addr6=$3
+
+	[ -z "${addr}" ] && addr="-"
+	[ -z "${addr6}" ] && addr6="-"
+
+	if [ "${addr}" != "-" ]; then
+		ip -netns ${ns} addr add dev lo ${addr}
+	fi
+	if [ "${addr6}" != "-" ]; then
+		ip -netns ${ns} -6 addr add dev lo ${addr6}
+	fi
+
+	ip -netns ${ns} ro add unreachable default metric 8192
+	ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+	ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+	local ns1=$1
+	local ns1_dev=$2
+	local ns1_addr=$3
+	local ns1_addr6=$4
+	local ns2=$5
+	local ns2_dev=$6
+	local ns2_addr=$7
+	local ns2_addr6=$8
+
+	ip -netns ${ns1} li add ${ns1_dev} type veth peer name tmp
+	ip -netns ${ns1} li set ${ns1_dev} up
+	ip -netns ${ns1} li set tmp netns ${ns2} name ${ns2_dev}
+	ip -netns ${ns2} li set ${ns2_dev} up
+
+	if [ "${ns1_addr}" != "-" ]; then
+		ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr}
+		ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr}
+	fi
+
+	if [ "${ns1_addr6}" != "-" ]; then
+		ip -netns ${ns1} addr add dev ${ns1_dev} ${ns1_addr6}
+		ip -netns ${ns2} addr add dev ${ns2_dev} ${ns2_addr6}
+	fi
+}
+
+################################################################################
+# test setup
+
+cleanup()
+{
+	cleanup_ns $host_1 $host_2 $router
+}
+
+setup_l2tp_ipv4()
+{
+	#
+	# configure l2tpv3 tunnel on host-1
+	#
+	ip -netns $host_1 l2tp add tunnel tunnel_id 1041 peer_tunnel_id 1042 \
+			 encap ip local 10.1.1.1 remote 10.1.2.1
+	ip -netns $host_1 l2tp add session name l2tp4 tunnel_id 1041 \
+			 session_id 1041 peer_session_id 1042
+	ip -netns $host_1 link set dev l2tp4 up
+	ip -netns $host_1 addr add dev l2tp4 172.16.1.1 peer 172.16.1.2
+
+	#
+	# configure l2tpv3 tunnel on host-2
+	#
+	ip -netns $host_2 l2tp add tunnel tunnel_id 1042 peer_tunnel_id 1041 \
+			 encap ip local 10.1.2.1 remote 10.1.1.1
+	ip -netns $host_2 l2tp add session name l2tp4 tunnel_id 1042 \
+			 session_id 1042 peer_session_id 1041
+	ip -netns $host_2 link set dev l2tp4 up
+	ip -netns $host_2 addr add dev l2tp4 172.16.1.2 peer 172.16.1.1
+
+	#
+	# add routes to loopback addresses
+	#
+	ip -netns $host_1 ro add 172.16.101.2/32 via 172.16.1.2
+	ip -netns $host_2 ro add 172.16.101.1/32 via 172.16.1.1
+}
+
+setup_l2tp_ipv6()
+{
+	#
+	# configure l2tpv3 tunnel on host-1
+	#
+	ip -netns $host_1 l2tp add tunnel tunnel_id 1061 peer_tunnel_id 1062 \
+			 encap ip local 2001:db8:1::1 remote 2001:db8:2::1
+	ip -netns $host_1 l2tp add session name l2tp6 tunnel_id 1061 \
+			 session_id 1061 peer_session_id 1062
+	ip -netns $host_1 link set dev l2tp6 up
+	ip -netns $host_1 addr add dev l2tp6 fc00:1::1 peer fc00:1::2
+
+	#
+	# configure l2tpv3 tunnel on host-2
+	#
+	ip -netns $host_2 l2tp add tunnel tunnel_id 1062 peer_tunnel_id 1061 \
+			 encap ip local 2001:db8:2::1 remote 2001:db8:1::1
+	ip -netns $host_2 l2tp add session name l2tp6 tunnel_id 1062 \
+			 session_id 1062 peer_session_id 1061
+	ip -netns $host_2 link set dev l2tp6 up
+	ip -netns $host_2 addr add dev l2tp6 fc00:1::2 peer fc00:1::1
+
+	#
+	# add routes to loopback addresses
+	#
+	ip -netns $host_1 -6 ro add fc00:101::2/128 via fc00:1::2
+	ip -netns $host_2 -6 ro add fc00:101::1/128 via fc00:1::1
+}
+
+setup()
+{
+	# start clean
+	cleanup
+
+	set -e
+	setup_ns host_1 host_2 router
+	create_ns $host_1 172.16.101.1/32 fc00:101::1/128
+	create_ns $host_2 172.16.101.2/32 fc00:101::2/128
+	create_ns $router
+
+	connect_ns $host_1 eth0 10.1.1.1/24 2001:db8:1::1/64 \
+	           $router eth1 10.1.1.2/24 2001:db8:1::2/64
+
+	connect_ns $host_2 eth0 10.1.2.1/24 2001:db8:2::1/64 \
+	           $router eth2 10.1.2.2/24 2001:db8:2::2/64
+
+	ip -netns $host_1 ro add 10.1.2.0/24 via 10.1.1.2
+	ip -netns $host_1 -6 ro add 2001:db8:2::/64 via 2001:db8:1::2
+
+	ip -netns $host_2 ro add 10.1.1.0/24 via 10.1.2.2
+	ip -netns $host_2 -6 ro add 2001:db8:1::/64 via 2001:db8:2::2
+
+	setup_l2tp_ipv4
+	setup_l2tp_ipv6
+	set +e
+}
+
+setup_ipsec()
+{
+	#
+	# IPv4
+	#
+	run_cmd $host_1 ip xfrm policy add \
+		src 10.1.1.1 dst 10.1.2.1 dir out \
+		tmpl proto esp mode transport
+
+	run_cmd $host_1 ip xfrm policy add \
+		src 10.1.2.1 dst 10.1.1.1 dir in \
+		tmpl proto esp mode transport
+
+	run_cmd $host_2 ip xfrm policy add \
+		src 10.1.1.1 dst 10.1.2.1 dir in \
+		tmpl proto esp mode transport
+
+	run_cmd $host_2 ip xfrm policy add \
+		src 10.1.2.1 dst 10.1.1.1 dir out \
+		tmpl proto esp mode transport
+
+	ip -netns $host_1 xfrm state add \
+		src 10.1.1.1 dst 10.1.2.1 \
+		spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_1 xfrm state add \
+		src 10.1.2.1 dst 10.1.1.1 \
+		spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_2 xfrm state add \
+		src 10.1.1.1 dst 10.1.2.1 \
+		spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_2 xfrm state add \
+		src 10.1.2.1 dst 10.1.1.1 \
+		spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	#
+	# IPV6
+	#
+	run_cmd $host_1 ip -6 xfrm policy add \
+		src 2001:db8:1::1 dst 2001:db8:2::1 dir out \
+		tmpl proto esp mode transport
+
+	run_cmd $host_1 ip -6 xfrm policy add \
+		src 2001:db8:2::1 dst 2001:db8:1::1 dir in \
+		tmpl proto esp mode transport
+
+	run_cmd $host_2 ip -6 xfrm policy add \
+		src 2001:db8:1::1 dst 2001:db8:2::1 dir in \
+		tmpl proto esp mode transport
+
+	run_cmd $host_2 ip -6 xfrm policy add \
+		src 2001:db8:2::1 dst 2001:db8:1::1 dir out \
+		tmpl proto esp mode transport
+
+	ip -netns $host_1 -6 xfrm state add \
+		src 2001:db8:1::1 dst 2001:db8:2::1 \
+		spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_1 -6 xfrm state add \
+		src 2001:db8:2::1 dst 2001:db8:1::1 \
+		spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_2 -6 xfrm state add \
+		src 2001:db8:1::1 dst 2001:db8:2::1 \
+		spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+
+	ip -netns $host_2 -6 xfrm state add \
+		src 2001:db8:2::1 dst 2001:db8:1::1 \
+		spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' \
+		0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode transport
+}
+
+teardown_ipsec()
+{
+	run_cmd $host_1 ip xfrm state flush
+	run_cmd $host_1 ip xfrm policy flush
+	run_cmd $host_2 ip xfrm state flush
+	run_cmd $host_2 ip xfrm policy flush
+}
+
+################################################################################
+# generate traffic through tunnel for various cases
+
+run_ping()
+{
+	local desc="$1"
+
+	run_cmd $host_1 ping -c1 -w1 172.16.1.2
+	log_test $? 0 "IPv4 basic L2TP tunnel ${desc}"
+
+	run_cmd $host_1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2
+	log_test $? 0 "IPv4 route through L2TP tunnel ${desc}"
+
+	run_cmd $host_1 ${ping6} -c1 -w1 fc00:1::2
+	log_test $? 0 "IPv6 basic L2TP tunnel ${desc}"
+
+	run_cmd $host_1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2
+	log_test $? 0 "IPv6 route through L2TP tunnel ${desc}"
+}
+
+run_tests()
+{
+	local desc
+
+	setup
+	run_ping
+
+	setup_ipsec
+	run_ping "- with IPsec"
+	run_cmd $host_1 ping -c1 -w1 172.16.1.2
+	log_test $? 0 "IPv4 basic L2TP tunnel ${desc}"
+
+	run_cmd $host_1 ping -c1 -w1 -I 172.16.101.1 172.16.101.2
+	log_test $? 0 "IPv4 route through L2TP tunnel ${desc}"
+
+	run_cmd $host_1 ${ping6} -c1 -w1 fc00:1::2
+	log_test $? 0 "IPv6 basic L2TP tunnel - with IPsec"
+
+	run_cmd $host_1 ${ping6} -c1 -w1 -I fc00:101::1 fc00:101::2
+	log_test $? 0 "IPv6 route through L2TP tunnel - with IPsec"
+
+	teardown_ipsec
+	run_ping "- after IPsec teardown"
+}
+
+################################################################################
+# main
+
+declare -i nfail=0
+declare -i nsuccess=0
+
+while getopts :pv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		*) exit 1;;
+	esac
+done
+
+run_tests
+cleanup
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
diff --git a/tools/testing/selftests/net/lib.sh b/tools/testing/selftests/net/lib.sh
new file mode 100644
index 000000000000..f448bafb3f20
--- /dev/null
+++ b/tools/testing/selftests/net/lib.sh
@@ -0,0 +1,671 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+net_dir=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+source "$net_dir/lib/sh/defer.sh"
+
+##############################################################################
+# Defines
+
+: "${WAIT_TIMEOUT:=20}"
+
+# Whether to pause on after a failure.
+: "${PAUSE_ON_FAIL:=no}"
+
+BUSYWAIT_TIMEOUT=$((WAIT_TIMEOUT * 1000)) # ms
+
+# Kselftest framework constants.
+ksft_pass=0
+ksft_fail=1
+ksft_xfail=2
+ksft_skip=4
+
+# namespace list created by setup_ns
+NS_LIST=()
+
+# Exit status to return at the end. Set in case one of the tests fails.
+EXIT_STATUS=0
+# Per-test return value. Clear at the beginning of each test.
+RET=0
+
+##############################################################################
+# Helpers
+
+__ksft_status_merge()
+{
+	local a=$1; shift
+	local b=$1; shift
+	local -A weights
+	local weight=0
+
+	local i
+	for i in "$@"; do
+		weights[$i]=$((weight++))
+	done
+
+	if [[ ${weights[$a]} -ge ${weights[$b]} ]]; then
+		echo "$a"
+		return 0
+	else
+		echo "$b"
+		return 1
+	fi
+}
+
+ksft_status_merge()
+{
+	local a=$1; shift
+	local b=$1; shift
+
+	__ksft_status_merge "$a" "$b" \
+		$ksft_pass $ksft_xfail $ksft_skip $ksft_fail
+}
+
+ksft_exit_status_merge()
+{
+	local a=$1; shift
+	local b=$1; shift
+
+	__ksft_status_merge "$a" "$b" \
+		$ksft_xfail $ksft_pass $ksft_skip $ksft_fail
+}
+
+loopy_wait()
+{
+	local sleep_cmd=$1; shift
+	local timeout_ms=$1; shift
+
+	local start_time="$(date -u +%s%3N)"
+	while true
+	do
+		local out
+		if out=$("$@"); then
+			echo -n "$out"
+			return 0
+		fi
+
+		local current_time="$(date -u +%s%3N)"
+		if ((current_time - start_time > timeout_ms)); then
+			echo -n "$out"
+			return 1
+		fi
+
+		$sleep_cmd
+	done
+}
+
+busywait()
+{
+	local timeout_ms=$1; shift
+
+	loopy_wait : "$timeout_ms" "$@"
+}
+
+# timeout in seconds
+slowwait()
+{
+	local timeout_sec=$1; shift
+
+	loopy_wait "sleep 0.1" "$((timeout_sec * 1000))" "$@"
+}
+
+until_counter_is()
+{
+	local expr=$1; shift
+	local current=$("$@")
+
+	echo $((current))
+	((current $expr))
+}
+
+busywait_for_counter()
+{
+	local timeout=$1; shift
+	local delta=$1; shift
+
+	local base=$("$@")
+	busywait "$timeout" until_counter_is ">= $((base + delta))" "$@"
+}
+
+slowwait_for_counter()
+{
+	local timeout=$1; shift
+	local delta=$1; shift
+
+	local base=$("$@")
+	slowwait "$timeout" until_counter_is ">= $((base + delta))" "$@"
+}
+
+# Check for existence of tools which are built as part of selftests
+# but may also already exist in $PATH
+check_gen_prog()
+{
+	local prog_name=$1; shift
+
+	if ! which $prog_name >/dev/null 2>/dev/null; then
+		PATH=$PWD:$PATH
+		if ! which $prog_name >/dev/null; then
+			echo "'$prog_name' command not found; skipping tests"
+			exit $ksft_skip
+		fi
+	fi
+}
+
+remove_ns_list()
+{
+	local item=$1
+	local ns
+	local ns_list=("${NS_LIST[@]}")
+	NS_LIST=()
+
+	for ns in "${ns_list[@]}"; do
+		if [ "${ns}" != "${item}" ]; then
+			NS_LIST+=("${ns}")
+		fi
+	done
+}
+
+cleanup_ns()
+{
+	local ns=""
+	local ret=0
+
+	for ns in "$@"; do
+		[ -z "${ns}" ] && continue
+		ip netns pids "${ns}" 2> /dev/null | xargs -r kill || true
+		ip netns delete "${ns}" &> /dev/null || true
+		if ! busywait $BUSYWAIT_TIMEOUT ip netns list \| grep -vq "^$ns$" &> /dev/null; then
+			echo "Warn: Failed to remove namespace $ns"
+			ret=1
+		else
+			remove_ns_list "${ns}"
+		fi
+	done
+
+	return $ret
+}
+
+cleanup_all_ns()
+{
+	cleanup_ns "${NS_LIST[@]}"
+}
+
+# setup netns with given names as prefix. e.g
+# setup_ns local remote
+setup_ns()
+{
+	local ns_name=""
+	local ns_list=()
+	for ns_name in "$@"; do
+		# avoid conflicts with local var: internal error
+		if [ "${ns_name}" = "ns_name" ]; then
+			echo "Failed to setup namespace '${ns_name}': invalid name"
+			cleanup_ns "${ns_list[@]}"
+			exit $ksft_fail
+		fi
+
+		# Some test may setup/remove same netns multi times
+		if [ -z "${!ns_name}" ]; then
+			eval "${ns_name}=${ns_name,,}-$(mktemp -u XXXXXX)"
+		else
+			cleanup_ns "${!ns_name}"
+		fi
+
+		if ! ip netns add "${!ns_name}"; then
+			echo "Failed to create namespace $ns_name"
+			cleanup_ns "${ns_list[@]}"
+			return $ksft_skip
+		fi
+		ip -n "${!ns_name}" link set lo up
+		ip netns exec "${!ns_name}" sysctl -wq net.ipv4.conf.all.rp_filter=0
+		ip netns exec "${!ns_name}" sysctl -wq net.ipv4.conf.default.rp_filter=0
+		ns_list+=("${!ns_name}")
+	done
+	NS_LIST+=("${ns_list[@]}")
+}
+
+# Create netdevsim with given id and net namespace.
+create_netdevsim() {
+    local id="$1"
+    local ns="$2"
+
+    modprobe netdevsim &> /dev/null
+    udevadm settle
+
+    echo "$id 1" | ip netns exec $ns tee /sys/bus/netdevsim/new_device >/dev/null
+    local dev=$(ip netns exec $ns ls /sys/bus/netdevsim/devices/netdevsim$id/net)
+    ip -netns $ns link set dev $dev name nsim$id
+    ip -netns $ns link set dev nsim$id up
+
+    echo nsim$id
+}
+
+create_netdevsim_port() {
+    local nsim_id="$1"
+    local ns="$2"
+    local port_id="$3"
+    local perm_addr="$4"
+    local orig_dev
+    local new_dev
+    local nsim_path
+
+    nsim_path="/sys/bus/netdevsim/devices/netdevsim$nsim_id"
+
+    echo "$port_id $perm_addr" | ip netns exec "$ns" tee "$nsim_path"/new_port > /dev/null || return 1
+
+    orig_dev=$(ip netns exec "$ns" find "$nsim_path"/net/ -maxdepth 1 -name 'e*' | tail -n 1)
+    orig_dev=$(basename "$orig_dev")
+    new_dev="nsim${nsim_id}p$port_id"
+
+    ip -netns "$ns" link set dev "$orig_dev" name "$new_dev"
+    ip -netns "$ns" link set dev "$new_dev" up
+
+    echo "$new_dev"
+}
+
+# Remove netdevsim with given id.
+cleanup_netdevsim() {
+    local id="$1"
+
+    if [ -d "/sys/bus/netdevsim/devices/netdevsim$id/net" ]; then
+        echo "$id" > /sys/bus/netdevsim/del_device
+    fi
+}
+
+tc_rule_stats_get()
+{
+	local dev=$1; shift
+	local pref=$1; shift
+	local dir=${1:-ingress}; shift
+	local selector=${1:-.packets}; shift
+
+	tc -j -s filter show dev $dev $dir pref $pref \
+	    | jq ".[1].options.actions[].stats$selector"
+}
+
+tc_rule_handle_stats_get()
+{
+	local id=$1; shift
+	local handle=$1; shift
+	local selector=${1:-.packets}; shift
+	local netns=${1:-""}; shift
+
+	tc $netns -j -s filter show $id \
+	    | jq ".[] | select(.options.handle == $handle) | \
+		  .options.actions[0].stats$selector"
+}
+
+# attach a qdisc with two children match/no-match and a flower filter to match
+tc_set_flower_counter() {
+	local -r ns=$1
+	local -r ipver=$2
+	local -r dev=$3
+	local -r flower_expr=$4
+
+	tc -n $ns qdisc add dev $dev root handle 1: prio bands 2 \
+			priomap 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
+
+	tc -n $ns qdisc add dev $dev parent 1:1 handle 11: pfifo
+	tc -n $ns qdisc add dev $dev parent 1:2 handle 12: pfifo
+
+	tc -n $ns filter add dev $dev parent 1: protocol ipv$ipver \
+			flower $flower_expr classid 1:2
+}
+
+tc_get_flower_counter() {
+	local -r ns=$1
+	local -r dev=$2
+
+	tc -n $ns -j -s qdisc show dev $dev handle 12: | jq .[0].packets
+}
+
+ret_set_ksft_status()
+{
+	local ksft_status=$1; shift
+	local msg=$1; shift
+
+	RET=$(ksft_status_merge $RET $ksft_status)
+	if (( $? )); then
+		retmsg=$msg
+	fi
+}
+
+log_test_result()
+{
+	local test_name=$1; shift
+	local opt_str=$1; shift
+	local result=$1; shift
+	local retmsg=$1
+
+	printf "TEST: %-60s  [%s]\n" "$test_name $opt_str" "$result"
+	if [[ $retmsg ]]; then
+		printf "\t%s\n" "$retmsg"
+	fi
+}
+
+pause_on_fail()
+{
+	if [[ $PAUSE_ON_FAIL == yes ]]; then
+		echo "Hit enter to continue, 'q' to quit"
+		read a
+		[[ $a == q ]] && exit 1
+	fi
+}
+
+handle_test_result_pass()
+{
+	local test_name=$1; shift
+	local opt_str=$1; shift
+
+	log_test_result "$test_name" "$opt_str" " OK "
+}
+
+handle_test_result_fail()
+{
+	local test_name=$1; shift
+	local opt_str=$1; shift
+
+	log_test_result "$test_name" "$opt_str" FAIL "$retmsg"
+	pause_on_fail
+}
+
+handle_test_result_xfail()
+{
+	local test_name=$1; shift
+	local opt_str=$1; shift
+
+	log_test_result "$test_name" "$opt_str" XFAIL "$retmsg"
+	pause_on_fail
+}
+
+handle_test_result_skip()
+{
+	local test_name=$1; shift
+	local opt_str=$1; shift
+
+	log_test_result "$test_name" "$opt_str" SKIP "$retmsg"
+}
+
+log_test()
+{
+	local test_name=$1
+	local opt_str=$2
+
+	if [[ $# -eq 2 ]]; then
+		opt_str="($opt_str)"
+	fi
+
+	if ((RET == ksft_pass)); then
+		handle_test_result_pass "$test_name" "$opt_str"
+	elif ((RET == ksft_xfail)); then
+		handle_test_result_xfail "$test_name" "$opt_str"
+	elif ((RET == ksft_skip)); then
+		handle_test_result_skip "$test_name" "$opt_str"
+	else
+		handle_test_result_fail "$test_name" "$opt_str"
+	fi
+
+	EXIT_STATUS=$(ksft_exit_status_merge $EXIT_STATUS $RET)
+	return $RET
+}
+
+log_test_skip()
+{
+	RET=$ksft_skip retmsg= log_test "$@"
+}
+
+log_test_xfail()
+{
+	RET=$ksft_xfail retmsg= log_test "$@"
+}
+
+log_info()
+{
+	local msg=$1
+
+	echo "INFO: $msg"
+}
+
+tests_run()
+{
+	local current_test
+
+	for current_test in ${TESTS:-$ALL_TESTS}; do
+		in_defer_scope \
+			$current_test
+	done
+}
+
+# Whether FAILs should be interpreted as XFAILs. Internal.
+FAIL_TO_XFAIL=
+
+check_err()
+{
+	local err=$1
+	local msg=$2
+
+	if ((err)); then
+		if [[ $FAIL_TO_XFAIL = yes ]]; then
+			ret_set_ksft_status $ksft_xfail "$msg"
+		else
+			ret_set_ksft_status $ksft_fail "$msg"
+		fi
+	fi
+}
+
+check_fail()
+{
+	local err=$1
+	local msg=$2
+
+	check_err $((!err)) "$msg"
+}
+
+check_err_fail()
+{
+	local should_fail=$1; shift
+	local err=$1; shift
+	local what=$1; shift
+
+	if ((should_fail)); then
+		check_fail $err "$what succeeded, but should have failed"
+	else
+		check_err $err "$what failed"
+	fi
+}
+
+xfail()
+{
+	FAIL_TO_XFAIL=yes "$@"
+}
+
+xfail_on_slow()
+{
+	if [[ $KSFT_MACHINE_SLOW = yes ]]; then
+		FAIL_TO_XFAIL=yes "$@"
+	else
+		"$@"
+	fi
+}
+
+omit_on_slow()
+{
+	if [[ $KSFT_MACHINE_SLOW != yes ]]; then
+		"$@"
+	fi
+}
+
+xfail_on_veth()
+{
+	local dev=$1; shift
+	local kind
+
+	kind=$(ip -j -d link show dev $dev |
+			jq -r '.[].linkinfo.info_kind')
+	if [[ $kind = veth ]]; then
+		FAIL_TO_XFAIL=yes "$@"
+	else
+		"$@"
+	fi
+}
+
+mac_get()
+{
+	local if_name=$1
+
+	ip -j link show dev $if_name | jq -r '.[]["address"]'
+}
+
+kill_process()
+{
+	local pid=$1; shift
+
+	# Suppress noise from killing the process.
+	{ kill $pid && wait $pid; } 2>/dev/null
+}
+
+check_command()
+{
+	local cmd=$1; shift
+
+	if [[ ! -x "$(command -v "$cmd")" ]]; then
+		log_test_skip "$cmd not installed"
+		return $EXIT_STATUS
+	fi
+}
+
+require_command()
+{
+	local cmd=$1; shift
+
+	if ! check_command "$cmd"; then
+		exit $EXIT_STATUS
+	fi
+}
+
+adf_ip_link_add()
+{
+	local name=$1; shift
+
+	ip link add name "$name" "$@" && \
+		defer ip link del dev "$name"
+}
+
+adf_ip_link_set_master()
+{
+	local member=$1; shift
+	local master=$1; shift
+
+	ip link set dev "$member" master "$master" && \
+		defer ip link set dev "$member" nomaster
+}
+
+adf_ip_link_set_addr()
+{
+	local name=$1; shift
+	local addr=$1; shift
+
+	local old_addr=$(mac_get "$name")
+	ip link set dev "$name" address "$addr" && \
+		defer ip link set dev "$name" address "$old_addr"
+}
+
+ip_link_has_flag()
+{
+	local name=$1; shift
+	local flag=$1; shift
+
+	local state=$(ip -j link show "$name" |
+		      jq --arg flag "$flag" 'any(.[].flags.[]; . == $flag)')
+	[[ $state == true ]]
+}
+
+ip_link_is_up()
+{
+	ip_link_has_flag "$1" UP
+}
+
+adf_ip_link_set_up()
+{
+	local name=$1; shift
+
+	if ! ip_link_is_up "$name"; then
+		ip link set dev "$name" up && \
+			defer ip link set dev "$name" down
+	fi
+}
+
+adf_ip_link_set_down()
+{
+	local name=$1; shift
+
+	if ip_link_is_up "$name"; then
+		ip link set dev "$name" down && \
+			defer ip link set dev "$name" up
+	fi
+}
+
+adf_ip_addr_add()
+{
+	local name=$1; shift
+
+	ip addr add dev "$name" "$@" && \
+		defer ip addr del dev "$name" "$@"
+}
+
+adf_ip_route_add()
+{
+	ip route add "$@" && \
+		defer ip route del "$@"
+}
+
+adf_bridge_vlan_add()
+{
+	bridge vlan add "$@" && \
+		defer bridge vlan del "$@"
+}
+
+wait_local_port_listen()
+{
+	local listener_ns="${1}"
+	local port="${2}"
+	local protocol="${3}"
+	local pattern
+	local i
+
+	pattern=":$(printf "%04X" "${port}") "
+
+	# for tcp protocol additionally check the socket state
+	[ ${protocol} = "tcp" ] && pattern="${pattern}0A"
+	for i in $(seq 10); do
+		if ip netns exec "${listener_ns}" awk '{print $2" "$4}' \
+		   /proc/net/"${protocol}"* | grep -q "${pattern}"; then
+			break
+		fi
+		sleep 0.1
+	done
+}
+
+cmd_jq()
+{
+	local cmd=$1
+	local jq_exp=$2
+	local jq_opts=$3
+	local ret
+	local output
+
+	output="$($cmd)"
+	# it the command fails, return error right away
+	ret=$?
+	if [[ $ret -ne 0 ]]; then
+		return $ret
+	fi
+	output=$(echo $output | jq -r $jq_opts "$jq_exp")
+	ret=$?
+	if [[ $ret -ne 0 ]]; then
+		return $ret
+	fi
+	echo $output
+	# return success only in case of non-empty output
+	[ ! -z "$output" ]
+}
diff --git a/tools/testing/selftests/net/lib/.gitignore b/tools/testing/selftests/net/lib/.gitignore
new file mode 100644
index 000000000000..bbc97d6bf556
--- /dev/null
+++ b/tools/testing/selftests/net/lib/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+csum
+xdp_helper
diff --git a/tools/testing/selftests/net/lib/Makefile b/tools/testing/selftests/net/lib/Makefile
new file mode 100644
index 000000000000..5339f56329e1
--- /dev/null
+++ b/tools/testing/selftests/net/lib/Makefile
@@ -0,0 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -Wall -Wl,--no-as-needed -O2 -g
+CFLAGS += -I../../../../../usr/include/ $(KHDR_INCLUDES)
+# Additional include paths needed by kselftest.h
+CFLAGS += -I../../
+
+TEST_FILES := \
+	../../../../net/ynl \
+	../../../../../Documentation/netlink/specs \
+	ksft_setup_loopback.sh \
+# end of TEST_FILES
+
+TEST_GEN_FILES := \
+	$(patsubst %.c,%.o,$(wildcard *.bpf.c)) \
+	csum \
+	xdp_helper \
+# end of TEST_GEN_FILES
+
+TEST_INCLUDES := $(wildcard py/*.py sh/*.sh)
+
+include ../../lib.mk
+
+include ../bpf.mk
diff --git a/tools/testing/selftests/net/lib/csum.c b/tools/testing/selftests/net/lib/csum.c
new file mode 100644
index 000000000000..27437590eeb5
--- /dev/null
+++ b/tools/testing/selftests/net/lib/csum.c
@@ -0,0 +1,1010 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Test hardware checksum offload: Rx + Tx, IPv4 + IPv6, TCP + UDP.
+ *
+ * The test runs on two machines to exercise the NIC. For this reason it
+ * is not integrated in kselftests.
+ *
+ *     CMD=$((./csum -[46] -[tu] -S $SADDR -D $DADDR -[RT] -r 1 $EXTRA_ARGS))
+ *
+ * Rx:
+ *
+ * The sender sends packets with a known checksum field using PF_INET(6)
+ * SOCK_RAW sockets.
+ *
+ * good packet: $CMD [-t]
+ * bad packet:  $CMD [-t] -E
+ *
+ * The receiver reads UDP packets with a UDP socket. This is not an
+ * option for TCP packets ('-t'). Optionally insert an iptables filter
+ * to avoid these entering the real protocol stack.
+ *
+ * The receiver also reads all packets with a PF_PACKET socket, to
+ * observe whether both good and bad packets arrive on the host. And to
+ * read the optional TP_STATUS_CSUM_VALID bit. This requires setting
+ * option PACKET_AUXDATA, and works only for CHECKSUM_UNNECESSARY.
+ *
+ * Tx:
+ *
+ * The sender needs to build CHECKSUM_PARTIAL packets to exercise tx
+ * checksum offload.
+ *
+ * The sender can sends packets with a UDP socket.
+ *
+ * Optionally crafts a packet that sums up to zero to verify that the
+ * device writes negative zero 0xFFFF in this case to distinguish from
+ * 0x0000 (checksum disabled), as required by RFC 768. Hit this case
+ * by choosing a specific source port.
+ *
+ * good packet: $CMD -U
+ * zero csum:   $CMD -U -Z
+ *
+ * The sender can also build packets with PF_PACKET with PACKET_VNET_HDR,
+ * to cover more protocols. PF_PACKET requires passing src and dst mac
+ * addresses.
+ *
+ * good packet: $CMD -s $smac -d $dmac -p [-t]
+ *
+ * Argument '-z' sends UDP packets with a 0x000 checksum disabled field,
+ * to verify that the NIC passes these packets unmodified.
+ *
+ * Argument '-e' adds a transport mode encapsulation header between
+ * network and transport header. This will fail for devices that parse
+ *  headers. Should work on devices that implement protocol agnostic tx
+ * checksum offload (NETIF_F_HW_CSUM).
+ *
+ * Argument '-r $SEED' optionally randomizes header, payload and length
+ * to increase coverage between packets sent. SEED 1 further chooses a
+ * different seed for each run (and logs this for reproducibility). It
+ * is advised to enable this for extra coverage in continuous testing.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/byteorder.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/filter.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/virtio_net.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/if_ether.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+static bool cfg_bad_csum;
+static int cfg_family = PF_INET6;
+static int cfg_num_pkt = 4;
+static bool cfg_do_rx = true;
+static bool cfg_do_tx = true;
+static bool cfg_encap;
+static char *cfg_ifname = "eth0";
+static char *cfg_mac_dst;
+static char *cfg_mac_src;
+static int cfg_proto = IPPROTO_UDP;
+static int cfg_payload_char = 'a';
+static int cfg_payload_len = 100;
+static uint16_t cfg_port_dst = 34000;
+static uint16_t cfg_port_src = 33000;
+static uint16_t cfg_port_src_encap = 33001;
+static unsigned int cfg_random_seed;
+static int cfg_rcvbuf = 1 << 22;	/* be able to queue large cfg_num_pkt */
+static bool cfg_send_pfpacket;
+static bool cfg_send_udp;
+static int cfg_timeout_ms = 2000;
+static bool cfg_zero_disable; /* skip checksum: set to zero (udp only) */
+static bool cfg_zero_sum;     /* create packet that adds up to zero */
+
+static struct sockaddr_in cfg_daddr4 = {.sin_family = AF_INET};
+static struct sockaddr_in cfg_saddr4 = {.sin_family = AF_INET};
+static struct sockaddr_in6 cfg_daddr6 = {.sin6_family = AF_INET6};
+static struct sockaddr_in6 cfg_saddr6 = {.sin6_family = AF_INET6};
+
+#define ENC_HEADER_LEN	(sizeof(struct udphdr) + sizeof(struct udp_encap_hdr))
+#define MAX_HEADER_LEN	(sizeof(struct ipv6hdr) + ENC_HEADER_LEN + sizeof(struct tcphdr))
+#define MAX_PAYLOAD_LEN 1024
+
+/* Trivial demo encap. Stand-in for transport layer protocols like ESP or PSP */
+struct udp_encap_hdr {
+	uint8_t nexthdr;
+	uint8_t padding[3];
+};
+
+/* Ipaddrs, for pseudo csum. Global var is ugly, pass through funcs was worse */
+static void *iph_addr_p;
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000UL) + (tv.tv_usec / 1000UL);
+}
+
+static uint32_t checksum_nofold(char *data, size_t len, uint32_t sum)
+{
+	uint16_t *words = (uint16_t *)data;
+	int i;
+
+	for (i = 0; i < len / 2; i++)
+		sum += words[i];
+
+	if (len & 1)
+		sum += ((unsigned char *)data)[len - 1];
+
+	return sum;
+}
+
+static uint16_t checksum_fold(void *data, size_t len, uint32_t sum)
+{
+	sum = checksum_nofold(data, len, sum);
+
+	while (sum > 0xFFFF)
+		sum = (sum & 0xFFFF) + (sum >> 16);
+
+	return ~sum;
+}
+
+static uint16_t checksum(void *th, uint16_t proto, size_t len)
+{
+	uint32_t sum;
+	int alen;
+
+	alen = cfg_family == PF_INET6 ? 32 : 8;
+
+	sum = checksum_nofold(iph_addr_p, alen, 0);
+	sum += htons(proto);
+	sum += htons(len);
+
+	/* With CHECKSUM_PARTIAL kernel expects non-inverted pseudo csum */
+	if (cfg_do_tx && cfg_send_pfpacket)
+		return ~checksum_fold(NULL, 0, sum);
+	else
+		return checksum_fold(th, len, sum);
+}
+
+static void *build_packet_ipv4(void *_iph, uint8_t proto, unsigned int len)
+{
+	struct iphdr *iph = _iph;
+
+	memset(iph, 0, sizeof(*iph));
+
+	iph->version = 4;
+	iph->ihl = 5;
+	iph->ttl = 8;
+	iph->protocol = proto;
+	iph->saddr = cfg_saddr4.sin_addr.s_addr;
+	iph->daddr = cfg_daddr4.sin_addr.s_addr;
+	iph->tot_len = htons(sizeof(*iph) + len);
+	iph->check = checksum_fold(iph, sizeof(*iph), 0);
+
+	iph_addr_p = &iph->saddr;
+
+	return iph + 1;
+}
+
+static void *build_packet_ipv6(void *_ip6h, uint8_t proto, unsigned int len)
+{
+	struct ipv6hdr *ip6h = _ip6h;
+
+	memset(ip6h, 0, sizeof(*ip6h));
+
+	ip6h->version = 6;
+	ip6h->payload_len = htons(len);
+	ip6h->nexthdr = proto;
+	ip6h->hop_limit = 64;
+	ip6h->saddr = cfg_saddr6.sin6_addr;
+	ip6h->daddr = cfg_daddr6.sin6_addr;
+
+	iph_addr_p = &ip6h->saddr;
+
+	return ip6h + 1;
+}
+
+static void *build_packet_udp(void *_uh)
+{
+	struct udphdr *uh = _uh;
+
+	uh->source = htons(cfg_port_src);
+	uh->dest = htons(cfg_port_dst);
+	uh->len = htons(sizeof(*uh) + cfg_payload_len);
+	uh->check = 0;
+
+	/* choose source port so that uh->check adds up to zero */
+	if (cfg_zero_sum) {
+		uh->source = 0;
+		uh->source = checksum(uh, IPPROTO_UDP, sizeof(*uh) + cfg_payload_len);
+
+		fprintf(stderr, "tx: changing sport: %hu -> %hu\n",
+			cfg_port_src, ntohs(uh->source));
+		cfg_port_src = ntohs(uh->source);
+	}
+
+	if (cfg_zero_disable)
+		uh->check = 0;
+	else
+		uh->check = checksum(uh, IPPROTO_UDP, sizeof(*uh) + cfg_payload_len);
+
+	if (cfg_bad_csum)
+		uh->check = ~uh->check;
+
+	fprintf(stderr, "tx: sending checksum: 0x%x\n", uh->check);
+	return uh + 1;
+}
+
+static void *build_packet_tcp(void *_th)
+{
+	struct tcphdr *th = _th;
+
+	th->source = htons(cfg_port_src);
+	th->dest = htons(cfg_port_dst);
+	th->doff = 5;
+	th->check = 0;
+
+	th->check = checksum(th, IPPROTO_TCP, sizeof(*th) + cfg_payload_len);
+
+	if (cfg_bad_csum)
+		th->check = ~th->check;
+
+	fprintf(stderr, "tx: sending checksum: 0x%x\n", th->check);
+	return th + 1;
+}
+
+static char *build_packet_udp_encap(void *_uh)
+{
+	struct udphdr *uh = _uh;
+	struct udp_encap_hdr *eh = _uh + sizeof(*uh);
+
+	/* outer dst == inner dst, to simplify BPF filter
+	 * outer src != inner src, to demultiplex on recv
+	 */
+	uh->dest = htons(cfg_port_dst);
+	uh->source = htons(cfg_port_src_encap);
+	uh->check = 0;
+	uh->len = htons(sizeof(*uh) +
+			sizeof(*eh) +
+			sizeof(struct tcphdr) +
+			cfg_payload_len);
+
+	eh->nexthdr = IPPROTO_TCP;
+
+	return build_packet_tcp(eh + 1);
+}
+
+static char *build_packet(char *buf, int max_len, int *len)
+{
+	uint8_t proto;
+	char *off;
+	int tlen;
+
+	if (cfg_random_seed) {
+		int *buf32 = (void *)buf;
+		int i;
+
+		for (i = 0; i < (max_len / sizeof(int)); i++)
+			buf32[i] = rand();
+	} else {
+		memset(buf, cfg_payload_char, max_len);
+	}
+
+	if (cfg_proto == IPPROTO_UDP)
+		tlen = sizeof(struct udphdr) + cfg_payload_len;
+	else
+		tlen = sizeof(struct tcphdr) + cfg_payload_len;
+
+	if (cfg_encap) {
+		proto = IPPROTO_UDP;
+		tlen += ENC_HEADER_LEN;
+	} else {
+		proto = cfg_proto;
+	}
+
+	if (cfg_family == PF_INET)
+		off = build_packet_ipv4(buf, proto, tlen);
+	else
+		off = build_packet_ipv6(buf, proto, tlen);
+
+	if (cfg_encap)
+		off = build_packet_udp_encap(off);
+	else if (cfg_proto == IPPROTO_UDP)
+		off = build_packet_udp(off);
+	else
+		off = build_packet_tcp(off);
+
+	/* only pass the payload, but still compute headers for cfg_zero_sum */
+	if (cfg_send_udp) {
+		*len = cfg_payload_len;
+		return off;
+	}
+
+	*len = off - buf + cfg_payload_len;
+	return buf;
+}
+
+static int open_inet(int ipproto, int protocol)
+{
+	int fd;
+
+	fd = socket(cfg_family, ipproto, protocol);
+	if (fd == -1)
+		error(1, errno, "socket inet");
+
+	if (cfg_family == PF_INET6) {
+		/* may have been updated by cfg_zero_sum */
+		cfg_saddr6.sin6_port = htons(cfg_port_src);
+
+		if (bind(fd, (void *)&cfg_saddr6, sizeof(cfg_saddr6)))
+			error(1, errno, "bind dgram 6");
+		if (connect(fd, (void *)&cfg_daddr6, sizeof(cfg_daddr6)))
+			error(1, errno, "connect dgram 6");
+	} else {
+		/* may have been updated by cfg_zero_sum */
+		cfg_saddr4.sin_port = htons(cfg_port_src);
+
+		if (bind(fd, (void *)&cfg_saddr4, sizeof(cfg_saddr4)))
+			error(1, errno, "bind dgram 4");
+		if (connect(fd, (void *)&cfg_daddr4, sizeof(cfg_daddr4)))
+			error(1, errno, "connect dgram 4");
+	}
+
+	return fd;
+}
+
+static int open_packet(void)
+{
+	int fd, one = 1;
+
+	fd = socket(PF_PACKET, SOCK_RAW, 0);
+	if (fd == -1)
+		error(1, errno, "socket packet");
+
+	if (setsockopt(fd, SOL_PACKET, PACKET_VNET_HDR, &one, sizeof(one)))
+		error(1, errno, "setsockopt packet_vnet_ndr");
+
+	return fd;
+}
+
+static void send_inet(int fd, const char *buf, int len)
+{
+	int ret;
+
+	ret = write(fd, buf, len);
+	if (ret == -1)
+		error(1, errno, "write");
+	if (ret != len)
+		error(1, 0, "write: %d", ret);
+}
+
+static void eth_str_to_addr(const char *str, unsigned char *eth)
+{
+	if (sscanf(str, "%hhx:%hhx:%hhx:%hhx:%hhx:%hhx",
+		   &eth[0], &eth[1], &eth[2], &eth[3], &eth[4], &eth[5]) != 6)
+		error(1, 0, "cannot parse mac addr %s", str);
+}
+
+static void send_packet(int fd, const char *buf, int len)
+{
+	struct virtio_net_hdr vh = {0};
+	struct sockaddr_ll addr = {0};
+	struct msghdr msg = {0};
+	struct ethhdr eth;
+	struct iovec iov[3];
+	int ret;
+
+	addr.sll_family = AF_PACKET;
+	addr.sll_halen = ETH_ALEN;
+	addr.sll_ifindex = if_nametoindex(cfg_ifname);
+	if (!addr.sll_ifindex)
+		error(1, errno, "if_nametoindex %s", cfg_ifname);
+
+	vh.flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+	if (cfg_family == PF_INET6) {
+		vh.csum_start = sizeof(struct ethhdr) + sizeof(struct ipv6hdr);
+		addr.sll_protocol = htons(ETH_P_IPV6);
+	} else {
+		vh.csum_start = sizeof(struct ethhdr) + sizeof(struct iphdr);
+		addr.sll_protocol = htons(ETH_P_IP);
+	}
+
+	if (cfg_encap)
+		vh.csum_start += ENC_HEADER_LEN;
+
+	if (cfg_proto == IPPROTO_TCP) {
+		vh.csum_offset = __builtin_offsetof(struct tcphdr, check);
+		vh.hdr_len = vh.csum_start + sizeof(struct tcphdr);
+	} else {
+		vh.csum_offset = __builtin_offsetof(struct udphdr, check);
+		vh.hdr_len = vh.csum_start + sizeof(struct udphdr);
+	}
+
+	eth_str_to_addr(cfg_mac_src, eth.h_source);
+	eth_str_to_addr(cfg_mac_dst, eth.h_dest);
+	eth.h_proto = addr.sll_protocol;
+
+	iov[0].iov_base = &vh;
+	iov[0].iov_len = sizeof(vh);
+
+	iov[1].iov_base = &eth;
+	iov[1].iov_len = sizeof(eth);
+
+	iov[2].iov_base = (void *)buf;
+	iov[2].iov_len = len;
+
+	msg.msg_iov = iov;
+	msg.msg_iovlen = ARRAY_SIZE(iov);
+
+	msg.msg_name = &addr;
+	msg.msg_namelen = sizeof(addr);
+
+	ret = sendmsg(fd, &msg, 0);
+	if (ret == -1)
+		error(1, errno, "sendmsg packet");
+	if (ret != sizeof(vh) + sizeof(eth) + len)
+		error(1, errno, "sendmsg packet: %u", ret);
+}
+
+static int recv_prepare_udp(void)
+{
+	int fd;
+
+	fd = socket(cfg_family, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket r");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
+		       &cfg_rcvbuf, sizeof(cfg_rcvbuf)))
+		error(1, errno, "setsockopt SO_RCVBUF r");
+
+	if (cfg_family == PF_INET6) {
+		if (bind(fd, (void *)&cfg_daddr6, sizeof(cfg_daddr6)))
+			error(1, errno, "bind r");
+	} else {
+		if (bind(fd, (void *)&cfg_daddr4, sizeof(cfg_daddr4)))
+			error(1, errno, "bind r");
+	}
+
+	return fd;
+}
+
+/* Filter out all traffic that is not cfg_proto with our destination port.
+ *
+ * Otherwise background noise may cause PF_PACKET receive queue overflow,
+ * dropping the expected packets and failing the test.
+ */
+static void __recv_prepare_packet_filter(int fd, int off_nexthdr, int off_dport)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD + BPF_B + BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, PACKET_HOST, 0, 4),
+		BPF_STMT(BPF_LD + BPF_B + BPF_ABS, off_nexthdr),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, cfg_encap ? IPPROTO_UDP : cfg_proto, 0, 2),
+		BPF_STMT(BPF_LD + BPF_H + BPF_ABS, off_dport),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, cfg_port_dst, 1, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0xFFFF),
+	};
+	struct sock_fprog prog = {};
+
+	prog.filter = filter;
+	prog.len = ARRAY_SIZE(filter);
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &prog, sizeof(prog)))
+		error(1, errno, "setsockopt filter");
+}
+
+static void recv_prepare_packet_filter(int fd)
+{
+	const int off_dport = offsetof(struct tcphdr, dest); /* same for udp */
+
+	if (cfg_family == AF_INET)
+		__recv_prepare_packet_filter(fd, offsetof(struct iphdr, protocol),
+					     sizeof(struct iphdr) + off_dport);
+	else
+		__recv_prepare_packet_filter(fd, offsetof(struct ipv6hdr, nexthdr),
+					     sizeof(struct ipv6hdr) + off_dport);
+}
+
+static void recv_prepare_packet_bind(int fd)
+{
+	struct sockaddr_ll laddr = {0};
+
+	laddr.sll_family = AF_PACKET;
+
+	if (cfg_family == PF_INET)
+		laddr.sll_protocol = htons(ETH_P_IP);
+	else
+		laddr.sll_protocol = htons(ETH_P_IPV6);
+
+	laddr.sll_ifindex = if_nametoindex(cfg_ifname);
+	if (!laddr.sll_ifindex)
+		error(1, 0, "if_nametoindex %s", cfg_ifname);
+
+	if (bind(fd, (void *)&laddr, sizeof(laddr)))
+		error(1, errno, "bind pf_packet");
+}
+
+static int recv_prepare_packet(void)
+{
+	int fd, one = 1;
+
+	fd = socket(PF_PACKET, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket p");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF,
+		       &cfg_rcvbuf, sizeof(cfg_rcvbuf)))
+		error(1, errno, "setsockopt SO_RCVBUF p");
+
+	/* enable auxdata to recv checksum status (valid vs unknown) */
+	if (setsockopt(fd, SOL_PACKET, PACKET_AUXDATA, &one, sizeof(one)))
+		error(1, errno, "setsockopt auxdata");
+
+	/* install filter to restrict packet flow to match */
+	recv_prepare_packet_filter(fd);
+
+	/* bind to address family to start packet flow */
+	recv_prepare_packet_bind(fd);
+
+	return fd;
+}
+
+static int recv_udp(int fd)
+{
+	static char buf[MAX_PAYLOAD_LEN];
+	int ret, count = 0;
+
+	while (1) {
+		ret = recv(fd, buf, sizeof(buf), MSG_DONTWAIT);
+		if (ret == -1 && errno == EAGAIN)
+			break;
+		if (ret == -1)
+			error(1, errno, "recv r");
+
+		fprintf(stderr, "rx: udp: len=%u\n", ret);
+		count++;
+	}
+
+	return count;
+}
+
+static int recv_verify_csum(void *th, int len, uint16_t sport, uint16_t csum_field)
+{
+	uint16_t csum;
+
+	csum = checksum(th, cfg_proto, len);
+
+	fprintf(stderr, "rx: pkt: sport=%hu len=%u csum=0x%hx verify=0x%hx\n",
+		sport, len, csum_field, csum);
+
+	/* csum must be zero unless cfg_bad_csum indicates bad csum */
+	if (csum && !cfg_bad_csum) {
+		fprintf(stderr, "pkt: bad csum\n");
+		return 1;
+	} else if (cfg_bad_csum && !csum) {
+		fprintf(stderr, "pkt: good csum, while bad expected\n");
+		return 1;
+	}
+
+	if (cfg_zero_sum && csum_field != 0xFFFF) {
+		fprintf(stderr, "pkt: zero csum: field should be 0xFFFF, is 0x%hx\n", csum_field);
+		return 1;
+	}
+
+	return 0;
+}
+
+static int recv_verify_packet_tcp(void *th, int len)
+{
+	struct tcphdr *tcph = th;
+
+	if (len < sizeof(*tcph) || tcph->dest != htons(cfg_port_dst))
+		return -1;
+
+	return recv_verify_csum(th, len, ntohs(tcph->source), tcph->check);
+}
+
+static int recv_verify_packet_udp_encap(void *th, int len)
+{
+	struct udp_encap_hdr *eh = th;
+
+	if (len < sizeof(*eh) || eh->nexthdr != IPPROTO_TCP)
+		return -1;
+
+	return recv_verify_packet_tcp(eh + 1, len - sizeof(*eh));
+}
+
+static int recv_verify_packet_udp(void *th, int len)
+{
+	struct udphdr *udph = th;
+
+	if (len < sizeof(*udph))
+		return -1;
+
+	if (udph->dest != htons(cfg_port_dst))
+		return -1;
+
+	if (udph->source == htons(cfg_port_src_encap))
+		return recv_verify_packet_udp_encap(udph + 1,
+						    len - sizeof(*udph));
+
+	return recv_verify_csum(th, len, ntohs(udph->source), udph->check);
+}
+
+static int recv_verify_packet_ipv4(void *nh, int len)
+{
+	struct iphdr *iph = nh;
+	uint16_t proto = cfg_encap ? IPPROTO_UDP : cfg_proto;
+	uint16_t ip_len;
+
+	if (len < sizeof(*iph) || iph->protocol != proto)
+		return -1;
+
+	ip_len = ntohs(iph->tot_len);
+	if (ip_len > len || ip_len < sizeof(*iph))
+		return -1;
+
+	len = ip_len;
+	iph_addr_p = &iph->saddr;
+	if (proto == IPPROTO_TCP)
+		return recv_verify_packet_tcp(iph + 1, len - sizeof(*iph));
+	else
+		return recv_verify_packet_udp(iph + 1, len - sizeof(*iph));
+}
+
+static int recv_verify_packet_ipv6(void *nh, int len)
+{
+	struct ipv6hdr *ip6h = nh;
+	uint16_t proto = cfg_encap ? IPPROTO_UDP : cfg_proto;
+	uint16_t payload_len;
+
+	if (len < sizeof(*ip6h) || ip6h->nexthdr != proto)
+		return -1;
+
+	payload_len = ntohs(ip6h->payload_len);
+	if (payload_len > len - sizeof(*ip6h))
+		return -1;
+
+	iph_addr_p = &ip6h->saddr;
+	if (proto == IPPROTO_TCP)
+		return recv_verify_packet_tcp(ip6h + 1, payload_len);
+	else
+		return recv_verify_packet_udp(ip6h + 1, payload_len);
+}
+
+/* return whether auxdata includes TP_STATUS_CSUM_VALID */
+static uint32_t recv_get_packet_csum_status(struct msghdr *msg)
+{
+	struct tpacket_auxdata *aux = NULL;
+	struct cmsghdr *cm;
+
+	if (msg->msg_flags & MSG_CTRUNC)
+		error(1, 0, "cmsg: truncated");
+
+	for (cm = CMSG_FIRSTHDR(msg); cm; cm = CMSG_NXTHDR(msg, cm)) {
+		if (cm->cmsg_level != SOL_PACKET ||
+		    cm->cmsg_type != PACKET_AUXDATA)
+			error(1, 0, "cmsg: level=%d type=%d\n",
+			      cm->cmsg_level, cm->cmsg_type);
+
+		if (cm->cmsg_len != CMSG_LEN(sizeof(struct tpacket_auxdata)))
+			error(1, 0, "cmsg: len=%lu expected=%lu",
+			      cm->cmsg_len, CMSG_LEN(sizeof(struct tpacket_auxdata)));
+
+		aux = (void *)CMSG_DATA(cm);
+	}
+
+	if (!aux)
+		error(1, 0, "cmsg: no auxdata");
+
+	return aux->tp_status;
+}
+
+static int recv_packet(int fd)
+{
+	static char _buf[MAX_HEADER_LEN + MAX_PAYLOAD_LEN];
+	unsigned long total = 0, bad_csums = 0, bad_validations = 0;
+	char ctrl[CMSG_SPACE(sizeof(struct tpacket_auxdata))];
+	struct pkt *buf = (void *)_buf;
+	struct msghdr msg = {0};
+	uint32_t tp_status;
+	struct iovec iov;
+	int len, ret;
+
+	iov.iov_base = _buf;
+	iov.iov_len = sizeof(_buf);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_control = ctrl;
+	msg.msg_controllen = sizeof(ctrl);
+
+	while (1) {
+		msg.msg_flags = 0;
+
+		len = recvmsg(fd, &msg, MSG_DONTWAIT);
+		if (len == -1 && errno == EAGAIN)
+			break;
+		if (len == -1)
+			error(1, errno, "recv p");
+
+		tp_status = recv_get_packet_csum_status(&msg);
+
+		/* GRO might coalesce randomized packets. Such GSO packets are
+		 * then reinitialized for csum offload (CHECKSUM_PARTIAL), with
+		 * a pseudo csum. Do not try to validate these checksums.
+		 */
+		if (tp_status & TP_STATUS_CSUMNOTREADY) {
+			fprintf(stderr, "cmsg: GSO packet has partial csum: skip\n");
+			continue;
+		}
+
+		if (cfg_family == PF_INET6)
+			ret = recv_verify_packet_ipv6(buf, len);
+		else
+			ret = recv_verify_packet_ipv4(buf, len);
+
+		if (ret == -1 /* skip: non-matching */)
+			continue;
+
+		total++;
+		if (ret == 1)
+			bad_csums++;
+
+		/* Fail if kernel returns valid for known bad csum.
+		 * Do not fail if kernel does not validate a good csum:
+		 * Absence of validation does not imply invalid.
+		 */
+		if (tp_status & TP_STATUS_CSUM_VALID && cfg_bad_csum) {
+			fprintf(stderr, "cmsg: expected bad csum, pf_packet returns valid\n");
+			bad_validations++;
+		}
+	}
+
+	if (bad_csums || bad_validations)
+		error(1, 0, "rx: errors at pf_packet: total=%lu bad_csums=%lu bad_valids=%lu\n",
+		      total, bad_csums, bad_validations);
+
+	return total;
+}
+
+static void parse_args(int argc, char *const argv[])
+{
+	const char *daddr = NULL, *saddr = NULL;
+	int c;
+
+	while ((c = getopt(argc, argv, "46d:D:eEi:l:L:n:r:PRs:S:tTuUzZ")) != -1) {
+		switch (c) {
+		case '4':
+			cfg_family = PF_INET;
+			break;
+		case '6':
+			cfg_family = PF_INET6;
+			break;
+		case 'd':
+			cfg_mac_dst = optarg;
+			break;
+		case 'D':
+			daddr = optarg;
+			break;
+		case 'e':
+			cfg_encap = true;
+			break;
+		case 'E':
+			cfg_bad_csum = true;
+			break;
+		case 'i':
+			cfg_ifname = optarg;
+			break;
+		case 'l':
+			cfg_payload_len = strtol(optarg, NULL, 0);
+			break;
+		case 'L':
+			cfg_timeout_ms = strtol(optarg, NULL, 0) * 1000;
+			break;
+		case 'n':
+			cfg_num_pkt = strtol(optarg, NULL, 0);
+			break;
+		case 'r':
+			cfg_random_seed = strtol(optarg, NULL, 0);
+			break;
+		case 'P':
+			cfg_send_pfpacket = true;
+			break;
+		case 'R':
+			/* only Rx: used with two machine tests */
+			cfg_do_tx = false;
+			break;
+		case 's':
+			cfg_mac_src = optarg;
+			break;
+		case 'S':
+			saddr = optarg;
+			break;
+		case 't':
+			cfg_proto = IPPROTO_TCP;
+			break;
+		case 'T':
+			/* only Tx: used with two machine tests */
+			cfg_do_rx = false;
+			break;
+		case 'u':
+			cfg_proto = IPPROTO_UDP;
+			break;
+		case 'U':
+			/* send using real udp socket,
+			 * to exercise tx checksum offload
+			 */
+			cfg_send_udp = true;
+			break;
+		case 'z':
+			cfg_zero_disable = true;
+			break;
+		case 'Z':
+			cfg_zero_sum = true;
+			break;
+		default:
+			error(1, 0, "unknown arg %c", c);
+		}
+	}
+
+	if (!daddr || !saddr)
+		error(1, 0, "Must pass -D <daddr> and -S <saddr>");
+
+	if (cfg_do_tx && cfg_send_pfpacket && (!cfg_mac_src || !cfg_mac_dst))
+		error(1, 0, "Transmit with pf_packet requires mac addresses");
+
+	if (cfg_payload_len > MAX_PAYLOAD_LEN)
+		error(1, 0, "Payload length exceeds max");
+
+	if (cfg_proto != IPPROTO_UDP && (cfg_zero_sum || cfg_zero_disable))
+		error(1, 0, "Only UDP supports zero csum");
+
+	if (cfg_zero_sum && !cfg_send_udp)
+		error(1, 0, "Zero checksum conversion requires -U for tx csum offload");
+	if (cfg_zero_sum && cfg_bad_csum)
+		error(1, 0, "Cannot combine zero checksum conversion and invalid checksum");
+	if (cfg_zero_sum && cfg_random_seed)
+		error(1, 0, "Cannot combine zero checksum conversion with randomization");
+
+	if (cfg_family == PF_INET6) {
+		cfg_saddr6.sin6_port = htons(cfg_port_src);
+		cfg_daddr6.sin6_port = htons(cfg_port_dst);
+
+		if (inet_pton(cfg_family, daddr, &cfg_daddr6.sin6_addr) != 1)
+			error(1, errno, "Cannot parse ipv6 -D");
+		if (inet_pton(cfg_family, saddr, &cfg_saddr6.sin6_addr) != 1)
+			error(1, errno, "Cannot parse ipv6 -S");
+	} else {
+		cfg_saddr4.sin_port = htons(cfg_port_src);
+		cfg_daddr4.sin_port = htons(cfg_port_dst);
+
+		if (inet_pton(cfg_family, daddr, &cfg_daddr4.sin_addr) != 1)
+			error(1, errno, "Cannot parse ipv4 -D");
+		if (inet_pton(cfg_family, saddr, &cfg_saddr4.sin_addr) != 1)
+			error(1, errno, "Cannot parse ipv4 -S");
+	}
+
+	if (cfg_do_tx && cfg_random_seed) {
+		/* special case: time-based seed */
+		if (cfg_random_seed == 1)
+			cfg_random_seed = (unsigned int)gettimeofday_ms();
+		srand(cfg_random_seed);
+		fprintf(stderr, "randomization seed: %u\n", cfg_random_seed);
+	}
+}
+
+static void do_tx(void)
+{
+	static char _buf[MAX_HEADER_LEN + MAX_PAYLOAD_LEN];
+	char *buf;
+	int fd, len, i;
+
+	buf = build_packet(_buf, sizeof(_buf), &len);
+
+	if (cfg_send_pfpacket)
+		fd = open_packet();
+	else if (cfg_send_udp)
+		fd = open_inet(SOCK_DGRAM, 0);
+	else
+		fd = open_inet(SOCK_RAW, IPPROTO_RAW);
+
+	for (i = 0; i < cfg_num_pkt; i++) {
+		if (cfg_send_pfpacket)
+			send_packet(fd, buf, len);
+		else
+			send_inet(fd, buf, len);
+
+		/* randomize each packet individually to increase coverage */
+		if (cfg_random_seed) {
+			cfg_payload_len = rand() % MAX_PAYLOAD_LEN;
+			buf = build_packet(_buf, sizeof(_buf), &len);
+		}
+	}
+
+	if (close(fd))
+		error(1, errno, "close tx");
+}
+
+static void do_rx(int fdp, int fdr)
+{
+	unsigned long count_udp = 0, count_pkt = 0;
+	long tleft, tstop;
+	struct pollfd pfd;
+
+	tstop = gettimeofday_ms() + cfg_timeout_ms;
+	tleft = cfg_timeout_ms;
+
+	do {
+		pfd.events = POLLIN;
+		pfd.fd = fdp;
+		if (poll(&pfd, 1, tleft) == -1)
+			error(1, errno, "poll");
+
+		if (pfd.revents & POLLIN)
+			count_pkt += recv_packet(fdp);
+
+		if (cfg_proto == IPPROTO_UDP)
+			count_udp += recv_udp(fdr);
+
+		tleft = tstop - gettimeofday_ms();
+	} while (tleft > 0);
+
+	if (close(fdr))
+		error(1, errno, "close r");
+	if (close(fdp))
+		error(1, errno, "close p");
+
+	if (count_pkt < cfg_num_pkt)
+		error(1, 0, "rx: missing packets at pf_packet: %lu < %u",
+		      count_pkt, cfg_num_pkt);
+
+	if (cfg_proto == IPPROTO_UDP) {
+		if (cfg_bad_csum && count_udp)
+			error(1, 0, "rx: unexpected packets at udp");
+		if (!cfg_bad_csum && !count_udp)
+			error(1, 0, "rx: missing packets at udp");
+	}
+}
+
+int main(int argc, char *const argv[])
+{
+	int fdp = -1, fdr = -1;		/* -1 to silence -Wmaybe-uninitialized */
+
+	parse_args(argc, argv);
+
+	/* open receive sockets before transmitting */
+	if (cfg_do_rx) {
+		fdp = recv_prepare_packet();
+		fdr = recv_prepare_udp();
+	}
+
+	if (cfg_do_tx)
+		do_tx();
+
+	if (cfg_do_rx)
+		do_rx(fdp, fdr);
+
+	fprintf(stderr, "OK\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/lib/ksft.h b/tools/testing/selftests/net/lib/ksft.h
new file mode 100644
index 000000000000..17dc34a612c6
--- /dev/null
+++ b/tools/testing/selftests/net/lib/ksft.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(__NET_KSFT_H__)
+#define __NET_KSFT_H__
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+static inline void ksft_ready(void)
+{
+	const char msg[7] = "ready\n";
+	char *env_str;
+	int fd;
+
+	env_str = getenv("KSFT_READY_FD");
+	if (env_str) {
+		fd = atoi(env_str);
+		if (!fd) {
+			fprintf(stderr, "invalid KSFT_READY_FD = '%s'\n",
+				env_str);
+			return;
+		}
+	} else {
+		fd = STDOUT_FILENO;
+	}
+
+	write(fd, msg, sizeof(msg));
+	if (fd != STDOUT_FILENO)
+		close(fd);
+}
+
+static inline void ksft_wait(void)
+{
+	char *env_str;
+	char byte;
+	int fd;
+
+	env_str = getenv("KSFT_WAIT_FD");
+	if (env_str) {
+		fd = atoi(env_str);
+		if (!fd) {
+			fprintf(stderr, "invalid KSFT_WAIT_FD = '%s'\n",
+				env_str);
+			return;
+		}
+	} else {
+		/* Not running in KSFT env, wait for input from STDIN instead */
+		fd = STDIN_FILENO;
+	}
+
+	read(fd, &byte, sizeof(byte));
+	if (fd != STDIN_FILENO)
+		close(fd);
+}
+
+#endif
diff --git a/tools/testing/selftests/net/lib/ksft_setup_loopback.sh b/tools/testing/selftests/net/lib/ksft_setup_loopback.sh
new file mode 100755
index 000000000000..3defbb1919c5
--- /dev/null
+++ b/tools/testing/selftests/net/lib/ksft_setup_loopback.sh
@@ -0,0 +1,111 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Setup script for running ksft tests over a real interface in loopback mode.
+# This scripts replaces the historical setup_loopback.sh. It puts
+# a (presumably) real hardware interface into loopback mode, creates macvlan
+# interfaces on top and places them in a network namespace for isolation.
+#
+# NETIF env variable must be exported to indicate the real target device.
+# Note that the test will override NETIF with one of the macvlans, the
+# actual ksft test will only see the macvlans.
+#
+# Example use:
+#   export NETIF=eth0
+#   ./net/lib/ksft_setup_loopback.sh ./drivers/net/gro.py
+
+if [ -z "$NETIF" ]; then
+    echo "Error: NETIF variable not set"
+    exit 1
+fi
+if ! [ -d "/sys/class/net/$NETIF" ]; then
+    echo "Error: Can't find $NETIF, invalid netdevice"
+    exit 1
+fi
+
+# Save original settings for cleanup
+readonly FLUSH_PATH="/sys/class/net/${NETIF}/gro_flush_timeout"
+readonly IRQ_PATH="/sys/class/net/${NETIF}/napi_defer_hard_irqs"
+FLUSH_TIMEOUT="$(< "${FLUSH_PATH}")"
+readonly FLUSH_TIMEOUT
+HARD_IRQS="$(< "${IRQ_PATH}")"
+readonly HARD_IRQS
+
+SERVER_NS=$(mktemp -u server-XXXXXXXX)
+readonly SERVER_NS
+CLIENT_NS=$(mktemp -u client-XXXXXXXX)
+readonly CLIENT_NS
+readonly SERVER_MAC="aa:00:00:00:00:02"
+readonly CLIENT_MAC="aa:00:00:00:00:01"
+
+# ksft expects addresses to communicate with remote
+export  LOCAL_V6=2001:db8:1::1
+export REMOTE_V6=2001:db8:1::2
+
+cleanup() {
+    local exit_code=$?
+
+    echo "Cleaning up..."
+
+    # Remove macvlan interfaces and namespaces
+    ip -netns "${SERVER_NS}" link del dev server 2>/dev/null || true
+    ip netns del "${SERVER_NS}" 2>/dev/null || true
+    ip -netns "${CLIENT_NS}" link del dev client 2>/dev/null || true
+    ip netns del "${CLIENT_NS}" 2>/dev/null || true
+
+    # Disable loopback
+    ethtool -K "${NETIF}" loopback off 2>/dev/null || true
+    sleep 1
+
+    echo "${FLUSH_TIMEOUT}" >"${FLUSH_PATH}"
+    echo "${HARD_IRQS}" >"${IRQ_PATH}"
+
+    exit $exit_code
+}
+
+trap cleanup EXIT INT TERM
+
+# Enable loopback mode
+echo "Enabling loopback on ${NETIF}..."
+ethtool -K "${NETIF}" loopback on || {
+    echo "Failed to enable loopback mode"
+    exit 1
+}
+# The interface may need time to get carrier back, but selftests
+# will wait for carrier, so no need to wait / sleep here.
+
+# Use timer on  host to trigger the network stack
+# Also disable device interrupt to not depend on NIC interrupt
+# Reduce test flakiness caused by unexpected interrupts
+echo 100000 >"${FLUSH_PATH}"
+echo 50 >"${IRQ_PATH}"
+
+# Create server namespace with macvlan
+ip netns add "${SERVER_NS}"
+ip link add link "${NETIF}" dev server address "${SERVER_MAC}" type macvlan
+ip link set dev server netns "${SERVER_NS}"
+ip -netns "${SERVER_NS}" link set dev server up
+ip -netns "${SERVER_NS}" addr add $LOCAL_V6/64 dev server
+ip -netns "${SERVER_NS}" link set dev lo up
+
+# Create client namespace with macvlan
+ip netns add "${CLIENT_NS}"
+ip link add link "${NETIF}" dev client address "${CLIENT_MAC}" type macvlan
+ip link set dev client netns "${CLIENT_NS}"
+ip -netns "${CLIENT_NS}" link set dev client up
+ip -netns "${CLIENT_NS}" addr add $REMOTE_V6/64 dev client
+ip -netns "${CLIENT_NS}" link set dev lo up
+
+echo "Setup complete!"
+echo "  Device: ${NETIF}"
+echo "  Server NS: ${SERVER_NS}"
+echo "  Client NS: ${CLIENT_NS}"
+echo ""
+
+# Setup environment variables for tests
+export NETIF=server
+export REMOTE_TYPE=netns
+export REMOTE_ARGS="${CLIENT_NS}"
+
+# Run the command
+ip netns exec "${SERVER_NS}" "$@"
diff --git a/tools/testing/selftests/net/lib/py/__init__.py b/tools/testing/selftests/net/lib/py/__init__.py
new file mode 100644
index 000000000000..40f9ce307dd1
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/__init__.py
@@ -0,0 +1,33 @@
+# SPDX-License-Identifier: GPL-2.0
+
+"""
+Python selftest helpers for netdev.
+"""
+
+from .consts import KSRC
+from .ksft import KsftFailEx, KsftSkipEx, KsftXfailEx, ksft_pr, ksft_eq, \
+    ksft_ne, ksft_true, ksft_not_none, ksft_in, ksft_not_in, ksft_is, \
+    ksft_ge, ksft_gt, ksft_lt, ksft_raises, ksft_busy_wait, \
+    ktap_result, ksft_disruptive, ksft_setup, ksft_run, ksft_exit, \
+    ksft_variants, KsftNamedVariant
+from .netns import NetNS, NetNSEnter
+from .nsim import NetdevSim, NetdevSimDev
+from .utils import CmdExitFailure, fd_read_timeout, cmd, bkg, defer, \
+    bpftool, ip, ethtool, bpftrace, rand_port, wait_port_listen, wait_file
+from .ynl import NlError, YnlFamily, EthtoolFamily, NetdevFamily, RtnlFamily, RtnlAddrFamily
+from .ynl import NetshaperFamily, DevlinkFamily, PSPFamily
+
+__all__ = ["KSRC",
+           "KsftFailEx", "KsftSkipEx", "KsftXfailEx", "ksft_pr", "ksft_eq",
+           "ksft_ne", "ksft_true", "ksft_not_none", "ksft_in", "ksft_not_in",
+           "ksft_is", "ksft_ge", "ksft_gt", "ksft_lt", "ksft_raises",
+           "ksft_busy_wait", "ktap_result", "ksft_disruptive", "ksft_setup",
+           "ksft_run", "ksft_exit", "ksft_variants", "KsftNamedVariant",
+           "NetNS", "NetNSEnter",
+           "CmdExitFailure", "fd_read_timeout", "cmd", "bkg", "defer",
+           "bpftool", "ip", "ethtool", "bpftrace", "rand_port",
+           "wait_port_listen", "wait_file",
+           "NetdevSim", "NetdevSimDev",
+           "NetshaperFamily", "DevlinkFamily", "PSPFamily", "NlError",
+           "YnlFamily", "EthtoolFamily", "NetdevFamily", "RtnlFamily",
+           "RtnlAddrFamily"]
diff --git a/tools/testing/selftests/net/lib/py/consts.py b/tools/testing/selftests/net/lib/py/consts.py
new file mode 100644
index 000000000000..f518ce79d82c
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/consts.py
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import sys
+from pathlib import Path
+
+KSFT_DIR = (Path(__file__).parent / "../../..").resolve()
+KSRC = (Path(__file__).parent / "../../../../../..").resolve()
+
+KSFT_MAIN_NAME = Path(sys.argv[0]).with_suffix("").name
diff --git a/tools/testing/selftests/net/lib/py/ksft.py b/tools/testing/selftests/net/lib/py/ksft.py
new file mode 100644
index 000000000000..531e7fa1b3ea
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/ksft.py
@@ -0,0 +1,370 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import functools
+import inspect
+import signal
+import sys
+import time
+import traceback
+from collections import namedtuple
+from .consts import KSFT_MAIN_NAME
+from .utils import global_defer_queue
+
+KSFT_RESULT = None
+KSFT_RESULT_ALL = True
+KSFT_DISRUPTIVE = True
+
+
+class KsftFailEx(Exception):
+    pass
+
+
+class KsftSkipEx(Exception):
+    pass
+
+
+class KsftXfailEx(Exception):
+    pass
+
+
+class KsftTerminate(KeyboardInterrupt):
+    pass
+
+
+def ksft_pr(*objs, **kwargs):
+    kwargs["flush"] = True
+    print("#", *objs, **kwargs)
+
+
+def _fail(*args):
+    global KSFT_RESULT
+    KSFT_RESULT = False
+
+    stack = inspect.stack()
+    started = False
+    for frame in reversed(stack[2:]):
+        # Start printing from the test case function
+        if not started:
+            if frame.function == 'ksft_run':
+                started = True
+            continue
+
+        ksft_pr("Check| At " + frame.filename + ", line " + str(frame.lineno) +
+                ", in " + frame.function + ":")
+        ksft_pr("Check|     " + frame.code_context[0].strip())
+    ksft_pr(*args)
+
+
+def ksft_eq(a, b, comment=""):
+    global KSFT_RESULT
+    if a != b:
+        _fail("Check failed", a, "!=", b, comment)
+
+
+def ksft_ne(a, b, comment=""):
+    global KSFT_RESULT
+    if a == b:
+        _fail("Check failed", a, "==", b, comment)
+
+
+def ksft_true(a, comment=""):
+    if not a:
+        _fail("Check failed", a, "does not eval to True", comment)
+
+
+def ksft_not_none(a, comment=""):
+    if a is None:
+        _fail("Check failed", a, "is None", comment)
+
+
+def ksft_in(a, b, comment=""):
+    if a not in b:
+        _fail("Check failed", a, "not in", b, comment)
+
+
+def ksft_not_in(a, b, comment=""):
+    if a in b:
+        _fail("Check failed", a, "in", b, comment)
+
+
+def ksft_is(a, b, comment=""):
+    if a is not b:
+        _fail("Check failed", a, "is not", b, comment)
+
+
+def ksft_ge(a, b, comment=""):
+    if a < b:
+        _fail("Check failed", a, "<", b, comment)
+
+
+def ksft_gt(a, b, comment=""):
+    if a <= b:
+        _fail("Check failed", a, "<=", b, comment)
+
+
+def ksft_lt(a, b, comment=""):
+    if a >= b:
+        _fail("Check failed", a, ">=", b, comment)
+
+
+class ksft_raises:
+    def __init__(self, expected_type):
+        self.exception = None
+        self.expected_type = expected_type
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        if exc_type is None:
+            _fail(f"Expected exception {str(self.expected_type.__name__)}, none raised")
+        elif self.expected_type != exc_type:
+            _fail(f"Expected exception {str(self.expected_type.__name__)}, raised {str(exc_type.__name__)}")
+        self.exception = exc_val
+        # Suppress the exception if its the expected one
+        return self.expected_type == exc_type
+
+
+def ksft_busy_wait(cond, sleep=0.005, deadline=1, comment=""):
+    end = time.monotonic() + deadline
+    while True:
+        if cond():
+            return
+        if time.monotonic() > end:
+            _fail("Waiting for condition timed out", comment)
+            return
+        time.sleep(sleep)
+
+
+def ktap_result(ok, cnt=1, case_name="", comment=""):
+    global KSFT_RESULT_ALL
+    KSFT_RESULT_ALL = KSFT_RESULT_ALL and ok
+
+    res = ""
+    if not ok:
+        res += "not "
+    res += "ok "
+    res += str(cnt) + " "
+    res += KSFT_MAIN_NAME
+    if case_name:
+        res += "." + case_name
+    if comment:
+        res += " # " + comment
+    print(res, flush=True)
+
+
+def ksft_flush_defer():
+    global KSFT_RESULT
+
+    i = 0
+    qlen_start = len(global_defer_queue)
+    while global_defer_queue:
+        i += 1
+        entry = global_defer_queue.pop()
+        try:
+            entry.exec_only()
+        except Exception:
+            ksft_pr(f"Exception while handling defer / cleanup (callback {i} of {qlen_start})!")
+            tb = traceback.format_exc()
+            for line in tb.strip().split('\n'):
+                ksft_pr("Defer Exception|", line)
+            KSFT_RESULT = False
+
+
+KsftCaseFunction = namedtuple("KsftCaseFunction",
+                              ['name', 'original_func', 'variants'])
+
+
+def ksft_disruptive(func):
+    """
+    Decorator that marks the test as disruptive (e.g. the test
+    that can down the interface). Disruptive tests can be skipped
+    by passing DISRUPTIVE=False environment variable.
+    """
+
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        if not KSFT_DISRUPTIVE:
+            raise KsftSkipEx("marked as disruptive")
+        return func(*args, **kwargs)
+    return wrapper
+
+
+class KsftNamedVariant:
+    """ Named string name + argument list tuple for @ksft_variants """
+
+    def __init__(self, name, *params):
+        self.params = params
+        self.name = name or "_".join([str(x) for x in self.params])
+
+
+def ksft_variants(params):
+    """
+    Decorator defining the sets of inputs for a test.
+    The parameters will be included in the name of the resulting sub-case.
+    Parameters can be either single object, tuple or a KsftNamedVariant.
+    The argument can be a list or a generator.
+
+    Example:
+
+    @ksft_variants([
+        (1, "a"),
+        (2, "b"),
+        KsftNamedVariant("three", 3, "c"),
+    ])
+    def my_case(cfg, a, b):
+        pass # ...
+
+    ksft_run(cases=[my_case], args=(cfg, ))
+
+    Will generate cases:
+        my_case.1_a
+        my_case.2_b
+        my_case.three
+    """
+
+    return lambda func: KsftCaseFunction(func.__name__, func, params)
+
+
+def ksft_setup(env):
+    """
+    Setup test framework global state from the environment.
+    """
+
+    def get_bool(env, name):
+        value = env.get(name, "").lower()
+        if value in ["yes", "true"]:
+            return True
+        if value in ["no", "false"]:
+            return False
+        try:
+            return bool(int(value))
+        except Exception:
+            raise Exception(f"failed to parse {name}")
+
+    if "DISRUPTIVE" in env:
+        global KSFT_DISRUPTIVE
+        KSFT_DISRUPTIVE = get_bool(env, "DISRUPTIVE")
+
+    return env
+
+
+def _ksft_intr(signum, frame):
+    # ksft runner.sh sends 2 SIGTERMs in a row on a timeout
+    # if we don't ignore the second one it will stop us from handling cleanup
+    global term_cnt
+    term_cnt += 1
+    if term_cnt == 1:
+        raise KsftTerminate()
+    else:
+        ksft_pr(f"Ignoring SIGTERM (cnt: {term_cnt}), already exiting...")
+
+
+def _ksft_generate_test_cases(cases, globs, case_pfx, args):
+    """Generate a flat list of (func, args, name) tuples"""
+
+    cases = cases or []
+    test_cases = []
+
+    # If using the globs method find all relevant functions
+    if globs and case_pfx:
+        for key, value in globs.items():
+            if not callable(value):
+                continue
+            for prefix in case_pfx:
+                if key.startswith(prefix):
+                    cases.append(value)
+                    break
+
+    for func in cases:
+        if isinstance(func, KsftCaseFunction):
+            # Parametrized test - create case for each param
+            for param in func.variants:
+                if not isinstance(param, KsftNamedVariant):
+                    if not isinstance(param, tuple):
+                        param = (param, )
+                    param = KsftNamedVariant(None, *param)
+
+                test_cases.append((func.original_func,
+                                   (*args, *param.params),
+                                   func.name + "." + param.name))
+        else:
+            test_cases.append((func, args, func.__name__))
+
+    return test_cases
+
+
+def ksft_run(cases=None, globs=None, case_pfx=None, args=()):
+    test_cases = _ksft_generate_test_cases(cases, globs, case_pfx, args)
+
+    global term_cnt
+    term_cnt = 0
+    prev_sigterm = signal.signal(signal.SIGTERM, _ksft_intr)
+
+    totals = {"pass": 0, "fail": 0, "skip": 0, "xfail": 0}
+
+    print("TAP version 13", flush=True)
+    print("1.." + str(len(test_cases)), flush=True)
+
+    global KSFT_RESULT
+    cnt = 0
+    stop = False
+    for func, args, name in test_cases:
+        KSFT_RESULT = True
+        cnt += 1
+        comment = ""
+        cnt_key = ""
+
+        try:
+            func(*args)
+        except KsftSkipEx as e:
+            comment = "SKIP " + str(e)
+            cnt_key = 'skip'
+        except KsftXfailEx as e:
+            comment = "XFAIL " + str(e)
+            cnt_key = 'xfail'
+        except BaseException as e:
+            stop |= isinstance(e, KeyboardInterrupt)
+            tb = traceback.format_exc()
+            for line in tb.strip().split('\n'):
+                ksft_pr("Exception|", line)
+            if stop:
+                ksft_pr(f"Stopping tests due to {type(e).__name__}.")
+            KSFT_RESULT = False
+            cnt_key = 'fail'
+
+        try:
+            ksft_flush_defer()
+        except BaseException as e:
+            tb = traceback.format_exc()
+            for line in tb.strip().split('\n'):
+                ksft_pr("Exception|", line)
+            if isinstance(e, KeyboardInterrupt):
+                ksft_pr()
+                ksft_pr("WARN: defer() interrupted, cleanup may be incomplete.")
+                ksft_pr("      Attempting to finish cleanup before exiting.")
+                ksft_pr("      Interrupt again to exit immediately.")
+                ksft_pr()
+                stop = True
+            # Flush was interrupted, try to finish the job best we can
+            ksft_flush_defer()
+
+        if not cnt_key:
+            cnt_key = 'pass' if KSFT_RESULT else 'fail'
+
+        ktap_result(KSFT_RESULT, cnt, name, comment=comment)
+        totals[cnt_key] += 1
+
+        if stop:
+            break
+
+    signal.signal(signal.SIGTERM, prev_sigterm)
+
+    print(
+        f"# Totals: pass:{totals['pass']} fail:{totals['fail']} xfail:{totals['xfail']} xpass:0 skip:{totals['skip']} error:0"
+    )
+
+
+def ksft_exit():
+    global KSFT_RESULT_ALL
+    sys.exit(0 if KSFT_RESULT_ALL else 1)
diff --git a/tools/testing/selftests/net/lib/py/netns.py b/tools/testing/selftests/net/lib/py/netns.py
new file mode 100644
index 000000000000..8e9317044eef
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/netns.py
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: GPL-2.0
+
+from .utils import ip
+import ctypes
+import random
+import string
+
+libc = ctypes.cdll.LoadLibrary('libc.so.6')
+
+
+class NetNS:
+    def __init__(self, name=None):
+        if name:
+            self.name = name
+        else:
+            self.name = ''.join(random.choice(string.ascii_lowercase) for _ in range(8))
+        ip('netns add ' + self.name)
+
+    def __del__(self):
+        if self.name:
+            ip('netns del ' + self.name)
+            self.name = None
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, ex_type, ex_value, ex_tb):
+        self.__del__()
+
+    def __str__(self):
+        return self.name
+
+    def __repr__(self):
+        return f"NetNS({self.name})"
+
+
+class NetNSEnter:
+    def __init__(self, ns_name):
+        self.ns_path = f"/run/netns/{ns_name}"
+
+    def __enter__(self):
+        self.saved = open("/proc/thread-self/ns/net")
+        with open(self.ns_path) as ns_file:
+            libc.setns(ns_file.fileno(), 0)
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        libc.setns(self.saved.fileno(), 0)
+        self.saved.close()
diff --git a/tools/testing/selftests/net/lib/py/nsim.py b/tools/testing/selftests/net/lib/py/nsim.py
new file mode 100644
index 000000000000..7c640ed64c0b
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/nsim.py
@@ -0,0 +1,135 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import errno
+import json
+import os
+import random
+import re
+import time
+from .utils import cmd, ip
+
+
+class NetdevSim:
+    """
+    Class for netdevsim netdevice and its attributes.
+    """
+
+    def __init__(self, nsimdev, port_index, ifname, ns=None):
+        # In case udev renamed the netdev to according to new schema,
+        # check if the name matches the port_index.
+        nsimnamere = re.compile(r"eni\d+np(\d+)")
+        match = nsimnamere.match(ifname)
+        if match and int(match.groups()[0]) != port_index + 1:
+            raise Exception("netdevice name mismatches the expected one")
+
+        self.ifname = ifname
+        self.nsimdev = nsimdev
+        self.port_index = port_index
+        self.ns = ns
+        self.dfs_dir = "%s/ports/%u/" % (nsimdev.dfs_dir, port_index)
+        ret = ip("-d -j link show dev %s" % ifname, ns=ns)
+        self.dev = json.loads(ret.stdout)[0]
+        self.ifindex = self.dev["ifindex"]
+
+    def dfs_write(self, path, val):
+        self.nsimdev.dfs_write(f'ports/{self.port_index}/' + path, val)
+
+
+class NetdevSimDev:
+    """
+    Class for netdevsim bus device and its attributes.
+    """
+    @staticmethod
+    def ctrl_write(path, val):
+        fullpath = os.path.join("/sys/bus/netdevsim/", path)
+        with open(fullpath, "w") as f:
+            f.write(val)
+
+    def dfs_write(self, path, val):
+        fullpath = os.path.join(f"/sys/kernel/debug/netdevsim/netdevsim{self.addr}/", path)
+        with open(fullpath, "w") as f:
+            f.write(val)
+
+    def __init__(self, port_count=1, queue_count=1, ns=None):
+        # nsim will spawn in init_net, we'll set to actual ns once we switch it there
+        self.ns = None
+
+        if not os.path.exists("/sys/bus/netdevsim"):
+            cmd("modprobe netdevsim")
+
+        addr = random.randrange(1 << 15)
+        while True:
+            try:
+                self.ctrl_write("new_device", "%u %u %u" % (addr, port_count, queue_count))
+            except OSError as e:
+                if e.errno == errno.ENOSPC:
+                    addr = random.randrange(1 << 15)
+                    continue
+                raise e
+            break
+        self.addr = addr
+
+        # As probe of netdevsim device might happen from a workqueue,
+        # so wait here until all netdevs appear.
+        self.wait_for_netdevs(port_count)
+
+        if ns:
+            cmd(f"devlink dev reload netdevsim/netdevsim{addr} netns {ns.name}")
+            self.ns = ns
+
+        cmd("udevadm settle", ns=self.ns)
+        ifnames = self.get_ifnames()
+
+        self.dfs_dir = "/sys/kernel/debug/netdevsim/netdevsim%u/" % addr
+
+        self.nsims = []
+        for port_index in range(port_count):
+            self.nsims.append(self._make_port(port_index, ifnames[port_index]))
+
+        self.removed = False
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, ex_type, ex_value, ex_tb):
+        """
+        __exit__ gets called at the end of a "with" block.
+        """
+        self.remove()
+
+    def _make_port(self, port_index, ifname):
+        return NetdevSim(self, port_index, ifname, self.ns)
+
+    def get_ifnames(self):
+        ifnames = []
+        listdir = cmd(f"ls /sys/bus/netdevsim/devices/netdevsim{self.addr}/net/",
+                      ns=self.ns).stdout.split()
+        for ifname in listdir:
+            ifnames.append(ifname)
+        ifnames.sort()
+        return ifnames
+
+    def wait_for_netdevs(self, port_count):
+        timeout = 5
+        timeout_start = time.time()
+
+        while True:
+            try:
+                ifnames = self.get_ifnames()
+            except FileNotFoundError as e:
+                ifnames = []
+            if len(ifnames) == port_count:
+                break
+            if time.time() < timeout_start + timeout:
+                continue
+            raise Exception("netdevices did not appear within timeout")
+
+    def remove(self):
+        if not self.removed:
+            self.ctrl_write("del_device", "%u" % (self.addr, ))
+            self.removed = True
+
+    def remove_nsim(self, nsim):
+        self.nsims.remove(nsim)
+        self.ctrl_write("devices/netdevsim%u/del_port" % (self.addr, ),
+                        "%u" % (nsim.port_index, ))
diff --git a/tools/testing/selftests/net/lib/py/utils.py b/tools/testing/selftests/net/lib/py/utils.py
new file mode 100644
index 000000000000..106ee1f2df86
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/utils.py
@@ -0,0 +1,278 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import json as _json
+import os
+import re
+import select
+import socket
+import subprocess
+import time
+
+
+class CmdExitFailure(Exception):
+    def __init__(self, msg, cmd_obj):
+        super().__init__(msg)
+        self.cmd = cmd_obj
+
+
+def fd_read_timeout(fd, timeout):
+    rlist, _, _ = select.select([fd], [], [], timeout)
+    if rlist:
+        return os.read(fd, 1024)
+    raise TimeoutError("Timeout waiting for fd read")
+
+
+class cmd:
+    """
+    Execute a command on local or remote host.
+
+    @shell defaults to false, and class will try to split @comm into a list
+    if it's a string with spaces.
+
+    Use bkg() instead to run a command in the background.
+    """
+    def __init__(self, comm, shell=None, fail=True, ns=None, background=False,
+                 host=None, timeout=5, ksft_ready=None, ksft_wait=None):
+        if ns:
+            comm = f'ip netns exec {ns} ' + comm
+
+        self.stdout = None
+        self.stderr = None
+        self.ret = None
+        self.ksft_term_fd = None
+
+        self.comm = comm
+        if host:
+            self.proc = host.cmd(comm)
+        else:
+            # If user doesn't explicitly request shell try to avoid it.
+            if shell is None and isinstance(comm, str) and ' ' in comm:
+                comm = comm.split()
+
+            # ksft_wait lets us wait for the background process to fully start,
+            # we pass an FD to the child process, and wait for it to write back.
+            # Similarly term_fd tells child it's time to exit.
+            pass_fds = []
+            env = os.environ.copy()
+            if ksft_wait is not None:
+                wait_fd, self.ksft_term_fd = os.pipe()
+                pass_fds.append(wait_fd)
+                env["KSFT_WAIT_FD"]  = str(wait_fd)
+                ksft_ready = True  # ksft_wait implies ready
+            if ksft_ready is not None:
+                rfd, ready_fd = os.pipe()
+                pass_fds.append(ready_fd)
+                env["KSFT_READY_FD"] = str(ready_fd)
+
+            self.proc = subprocess.Popen(comm, shell=shell, stdout=subprocess.PIPE,
+                                         stderr=subprocess.PIPE, pass_fds=pass_fds,
+                                         env=env)
+            if ksft_wait is not None:
+                os.close(wait_fd)
+            if ksft_ready is not None:
+                os.close(ready_fd)
+                msg = fd_read_timeout(rfd, ksft_wait)
+                os.close(rfd)
+                if not msg:
+                    raise Exception("Did not receive ready message")
+        if not background:
+            self.process(terminate=False, fail=fail, timeout=timeout)
+
+    def process(self, terminate=True, fail=None, timeout=5):
+        if fail is None:
+            fail = not terminate
+
+        if self.ksft_term_fd:
+            os.write(self.ksft_term_fd, b"1")
+        if terminate:
+            self.proc.terminate()
+        stdout, stderr = self.proc.communicate(timeout)
+        self.stdout = stdout.decode("utf-8")
+        self.stderr = stderr.decode("utf-8")
+        self.proc.stdout.close()
+        self.proc.stderr.close()
+        self.ret = self.proc.returncode
+
+        if self.proc.returncode != 0 and fail:
+            if len(stderr) > 0 and stderr[-1] == "\n":
+                stderr = stderr[:-1]
+            raise CmdExitFailure("Command failed: %s\nSTDOUT: %s\nSTDERR: %s" %
+                                 (self.proc.args, stdout, stderr), self)
+
+
+class bkg(cmd):
+    """
+    Run a command in the background.
+
+    Examples usage:
+
+    Run a command on remote host, and wait for it to finish.
+    This is usually paired with wait_port_listen() to make sure
+    the command has initialized:
+
+        with bkg("socat ...", exit_wait=True, host=cfg.remote) as nc:
+            ...
+
+    Run a command and expect it to let us know that it's ready
+    by writing to a special file descriptor passed via KSFT_READY_FD.
+    Command will be terminated when we exit the context manager:
+
+        with bkg("my_binary", ksft_wait=5):
+    """
+    def __init__(self, comm, shell=None, fail=None, ns=None, host=None,
+                 exit_wait=False, ksft_ready=None, ksft_wait=None):
+        super().__init__(comm, background=True,
+                         shell=shell, fail=fail, ns=ns, host=host,
+                         ksft_ready=ksft_ready, ksft_wait=ksft_wait)
+        self.terminate = not exit_wait and not ksft_wait
+        self._exit_wait = exit_wait
+        self.check_fail = fail
+
+        if shell and self.terminate:
+            print("# Warning: combining shell and terminate is risky!")
+            print("#          SIGTERM may not reach the child on zsh/ksh!")
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, ex_type, ex_value, ex_tb):
+        # Force termination on exception
+        terminate = self.terminate or (self._exit_wait and ex_type)
+        return self.process(terminate=terminate, fail=self.check_fail)
+
+
+global_defer_queue = []
+
+
+class defer:
+    def __init__(self, func, *args, **kwargs):
+        if not callable(func):
+            raise Exception("defer created with un-callable object, did you call the function instead of passing its name?")
+
+        self.func = func
+        self.args = args
+        self.kwargs = kwargs
+
+        self._queue =  global_defer_queue
+        self._queue.append(self)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, ex_type, ex_value, ex_tb):
+        return self.exec()
+
+    def exec_only(self):
+        self.func(*self.args, **self.kwargs)
+
+    def cancel(self):
+        self._queue.remove(self)
+
+    def exec(self):
+        self.cancel()
+        self.exec_only()
+
+
+def tool(name, args, json=None, ns=None, host=None):
+    cmd_str = name + ' '
+    if json:
+        cmd_str += '--json '
+    cmd_str += args
+    cmd_obj = cmd(cmd_str, ns=ns, host=host)
+    if json:
+        return _json.loads(cmd_obj.stdout)
+    return cmd_obj
+
+
+def bpftool(args, json=None, ns=None, host=None):
+    return tool('bpftool', args, json=json, ns=ns, host=host)
+
+
+def ip(args, json=None, ns=None, host=None):
+    if ns:
+        args = f'-netns {ns} ' + args
+    return tool('ip', args, json=json, host=host)
+
+
+def ethtool(args, json=None, ns=None, host=None):
+    return tool('ethtool', args, json=json, ns=ns, host=host)
+
+
+def bpftrace(expr, json=None, ns=None, host=None, timeout=None):
+    """
+    Run bpftrace and return map data (if json=True).
+    The output of bpftrace is inconvenient, so the helper converts
+    to a dict indexed by map name, e.g.:
+     {
+       "@":     { ... },
+       "@map2": { ... },
+     }
+    """
+    cmd_arr = ['bpftrace']
+    # Throw in --quiet if json, otherwise the output has two objects
+    if json:
+        cmd_arr += ['-f', 'json', '-q']
+    if timeout:
+        expr += ' interval:s:' + str(timeout) + ' { exit(); }'
+    cmd_arr += ['-e', expr]
+    cmd_obj = cmd(cmd_arr, ns=ns, host=host, shell=False)
+    if json:
+        # bpftrace prints objects as lines
+        ret = {}
+        for l in cmd_obj.stdout.split('\n'):
+            if not l.strip():
+                continue
+            one = _json.loads(l)
+            if one.get('type') != 'map':
+                continue
+            for k, v in one["data"].items():
+                if k.startswith('@'):
+                    k = k.lstrip('@')
+                ret[k] = v
+        return ret
+    return cmd_obj
+
+
+def rand_port(stype=socket.SOCK_STREAM):
+    """
+    Get a random unprivileged port.
+    """
+    with socket.socket(socket.AF_INET6, stype) as s:
+        s.bind(("", 0))
+        return s.getsockname()[1]
+
+
+def wait_port_listen(port, proto="tcp", ns=None, host=None, sleep=0.005, deadline=5):
+    end = time.monotonic() + deadline
+
+    pattern = f":{port:04X} .* "
+    if proto == "tcp": # for tcp protocol additionally check the socket state
+        pattern += "0A"
+    pattern = re.compile(pattern)
+
+    while True:
+        data = cmd(f'cat /proc/net/{proto}*', ns=ns, host=host, shell=True).stdout
+        for row in data.split("\n"):
+            if pattern.search(row):
+                return
+        if time.monotonic() > end:
+            raise Exception("Waiting for port listen timed out")
+        time.sleep(sleep)
+
+
+def wait_file(fname, test_fn, sleep=0.005, deadline=5, encoding='utf-8'):
+    """
+    Wait for file contents on the local system to satisfy a condition.
+    test_fn() should take one argument (file contents) and return whether
+    condition is met.
+    """
+    end = time.monotonic() + deadline
+
+    with open(fname, "r", encoding=encoding) as fp:
+        while True:
+            if test_fn(fp.read()):
+                break
+            fp.seek(0)
+            if time.monotonic() > end:
+                raise TimeoutError("Wait for file contents failed", fname)
+            time.sleep(sleep)
diff --git a/tools/testing/selftests/net/lib/py/ynl.py b/tools/testing/selftests/net/lib/py/ynl.py
new file mode 100644
index 000000000000..32c223e93b2c
--- /dev/null
+++ b/tools/testing/selftests/net/lib/py/ynl.py
@@ -0,0 +1,68 @@
+# SPDX-License-Identifier: GPL-2.0
+
+import sys
+from pathlib import Path
+from .consts import KSRC, KSFT_DIR
+from .ksft import ksft_pr, ktap_result
+
+# Resolve paths
+try:
+    if (KSFT_DIR / "kselftest-list.txt").exists():
+        # Running in "installed" selftests
+        tools_full_path = KSFT_DIR
+        SPEC_PATH = KSFT_DIR / "net/lib/specs"
+
+        sys.path.append(tools_full_path.as_posix())
+        from net.lib.ynl.pyynl.lib import YnlFamily, NlError
+    else:
+        # Running in tree
+        tools_full_path = KSRC / "tools"
+        SPEC_PATH = KSRC / "Documentation/netlink/specs"
+
+        sys.path.append(tools_full_path.as_posix())
+        from net.ynl.pyynl.lib import YnlFamily, NlError
+except ModuleNotFoundError as e:
+    ksft_pr("Failed importing `ynl` library from kernel sources")
+    ksft_pr(str(e))
+    ktap_result(True, comment="SKIP")
+    sys.exit(4)
+
+#
+# Wrapper classes, loading the right specs
+# Set schema='' to avoid jsonschema validation, it's slow
+#
+class EthtoolFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('ethtool.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+
+class RtnlFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('rt-link.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+class RtnlAddrFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('rt-addr.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+class NetdevFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('netdev.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+class NetshaperFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('net_shaper.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+class DevlinkFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('devlink.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
+
+class PSPFamily(YnlFamily):
+    def __init__(self, recv_size=0):
+        super().__init__((SPEC_PATH / Path('psp.yaml')).as_posix(),
+                         schema='', recv_size=recv_size)
diff --git a/tools/testing/selftests/net/lib/sh/defer.sh b/tools/testing/selftests/net/lib/sh/defer.sh
new file mode 100644
index 000000000000..47ab78c4d465
--- /dev/null
+++ b/tools/testing/selftests/net/lib/sh/defer.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Whether to pause and allow debugging when an executed deferred command has a
+# non-zero exit code.
+: "${DEFER_PAUSE_ON_FAIL:=no}"
+
+# map[(scope_id,track,cleanup_id) -> cleanup_command]
+# track={d=default | p=priority}
+declare -A __DEFER__JOBS
+
+# map[(scope_id,track) -> # cleanup_commands]
+declare -A __DEFER__NJOBS
+
+# scope_id of the topmost scope.
+__DEFER__SCOPE_ID=0
+
+__defer__ndefer_key()
+{
+	local track=$1; shift
+
+	echo $__DEFER__SCOPE_ID,$track
+}
+
+__defer__defer_key()
+{
+	local track=$1; shift
+	local defer_ix=$1; shift
+
+	echo $__DEFER__SCOPE_ID,$track,$defer_ix
+}
+
+__defer__ndefers()
+{
+	local track=$1; shift
+
+	echo ${__DEFER__NJOBS[$(__defer__ndefer_key $track)]}
+}
+
+__defer__run()
+{
+	local track=$1; shift
+	local defer_ix=$1; shift
+	local defer_key=$(__defer__defer_key $track $defer_ix)
+	local ret
+
+	eval ${__DEFER__JOBS[$defer_key]}
+	ret=$?
+
+	if [[ "$DEFER_PAUSE_ON_FAIL" == yes && "$ret" -ne 0 ]]; then
+		echo "Deferred command (track $track index $defer_ix):"
+		echo "	${__DEFER__JOBS[$defer_key]}"
+		echo "... ended with an exit status of $ret"
+		echo "Hit enter to continue, 'q' to quit"
+		read a
+		[[ "$a" == q ]] && exit 1
+	fi
+
+	unset __DEFER__JOBS[$defer_key]
+}
+
+__defer__schedule()
+{
+	local track=$1; shift
+	local ndefers=$(__defer__ndefers $track)
+	local ndefers_key=$(__defer__ndefer_key $track)
+	local defer_key=$(__defer__defer_key $track $ndefers)
+	local defer="${@@Q}"
+
+	__DEFER__JOBS[$defer_key]="$defer"
+	__DEFER__NJOBS[$ndefers_key]=$((ndefers + 1))
+}
+
+__defer__scope_wipe()
+{
+	__DEFER__NJOBS[$(__defer__ndefer_key d)]=0
+	__DEFER__NJOBS[$(__defer__ndefer_key p)]=0
+}
+
+defer_scope_push()
+{
+	((__DEFER__SCOPE_ID++))
+	__defer__scope_wipe
+}
+
+defer_scope_pop()
+{
+	local defer_ix
+
+	for ((defer_ix=$(__defer__ndefers p); defer_ix-->0; )); do
+		__defer__run p $defer_ix
+	done
+
+	for ((defer_ix=$(__defer__ndefers d); defer_ix-->0; )); do
+		__defer__run d $defer_ix
+	done
+
+	__defer__scope_wipe
+	((__DEFER__SCOPE_ID--))
+}
+
+defer()
+{
+	__defer__schedule d "$@"
+}
+
+defer_prio()
+{
+	__defer__schedule p "$@"
+}
+
+defer_scopes_cleanup()
+{
+	while ((__DEFER__SCOPE_ID >= 0)); do
+		defer_scope_pop
+	done
+}
+
+in_defer_scope()
+{
+	local ret
+
+	defer_scope_push
+	"$@"
+	ret=$?
+	defer_scope_pop
+
+	return $ret
+}
+
+__defer__scope_wipe
diff --git a/tools/testing/selftests/net/lib/xdp_dummy.bpf.c b/tools/testing/selftests/net/lib/xdp_dummy.bpf.c
new file mode 100644
index 000000000000..e73fab3edd9f
--- /dev/null
+++ b/tools/testing/selftests/net/lib/xdp_dummy.bpf.c
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define KBUILD_MODNAME "xdp_dummy"
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+SEC("xdp")
+int xdp_dummy_prog(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+SEC("xdp.frags")
+int xdp_dummy_prog_frags(struct xdp_md *ctx)
+{
+	return XDP_PASS;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/net/lib/xdp_helper.c b/tools/testing/selftests/net/lib/xdp_helper.c
new file mode 100644
index 000000000000..eb025a9f35b1
--- /dev/null
+++ b/tools/testing/selftests/net/lib/xdp_helper.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <linux/if_xdp.h>
+#include <linux/if_link.h>
+#include <net/if.h>
+#include <inttypes.h>
+
+#include "ksft.h"
+
+#define UMEM_SZ (1U << 16)
+#define NUM_DESC (UMEM_SZ / 2048)
+
+
+static void print_usage(const char *bin)
+{
+	fprintf(stderr, "Usage: %s ifindex queue_id [-z]\n\n"
+		"where:\n\t-z: force zerocopy mode", bin);
+}
+
+/* this is a simple helper program that creates an XDP socket and does the
+ * minimum necessary to get bind() to succeed.
+ *
+ * this test program is not intended to actually process packets, but could be
+ * extended in the future if that is actually needed.
+ *
+ * it is used by queues.py to ensure the xsk netlinux attribute is set
+ * correctly.
+ */
+int main(int argc, char **argv)
+{
+	struct xdp_umem_reg umem_reg = { 0 };
+	struct sockaddr_xdp sxdp = { 0 };
+	int num_desc = NUM_DESC;
+	void *umem_area;
+	int retry = 0;
+	int ifindex;
+	int sock_fd;
+	int queue;
+
+	if (argc != 3 && argc != 4) {
+		print_usage(argv[0]);
+		return 1;
+	}
+
+	sock_fd = socket(AF_XDP, SOCK_RAW, 0);
+	if (sock_fd < 0) {
+		perror("socket creation failed");
+		/* if the kernel doesn't support AF_XDP, let the test program
+		 * know with -1. All other error paths return 1.
+		 */
+		if (errno == EAFNOSUPPORT)
+			return -1;
+		return 1;
+	}
+
+	/* "Probing mode", just checking if AF_XDP sockets are supported */
+	if (!strcmp(argv[1], "-") && !strcmp(argv[2], "-")) {
+		printf("AF_XDP support detected\n");
+		close(sock_fd);
+		return 0;
+	}
+
+	ifindex = atoi(argv[1]);
+	queue = atoi(argv[2]);
+
+	umem_area = mmap(NULL, UMEM_SZ, PROT_READ | PROT_WRITE, MAP_PRIVATE |
+			MAP_ANONYMOUS, -1, 0);
+	if (umem_area == MAP_FAILED) {
+		perror("mmap failed");
+		return 1;
+	}
+
+	umem_reg.addr = (uintptr_t)umem_area;
+	umem_reg.len = UMEM_SZ;
+	umem_reg.chunk_size = 2048;
+	umem_reg.headroom = 0;
+
+	setsockopt(sock_fd, SOL_XDP, XDP_UMEM_REG, &umem_reg,
+		   sizeof(umem_reg));
+	setsockopt(sock_fd, SOL_XDP, XDP_UMEM_FILL_RING, &num_desc,
+		   sizeof(num_desc));
+	setsockopt(sock_fd, SOL_XDP, XDP_UMEM_COMPLETION_RING, &num_desc,
+		   sizeof(num_desc));
+	setsockopt(sock_fd, SOL_XDP, XDP_RX_RING, &num_desc, sizeof(num_desc));
+
+	sxdp.sxdp_family = AF_XDP;
+	sxdp.sxdp_ifindex = ifindex;
+	sxdp.sxdp_queue_id = queue;
+	sxdp.sxdp_flags = 0;
+
+	if (argc > 3) {
+		if (!strcmp(argv[3], "-z")) {
+			sxdp.sxdp_flags = XDP_ZEROCOPY;
+		} else {
+			print_usage(argv[0]);
+			return 1;
+		}
+	}
+
+	while (1) {
+		if (bind(sock_fd, (struct sockaddr *)&sxdp, sizeof(sxdp)) == 0)
+			break;
+
+		if (errno == EBUSY && retry < 3) {
+			retry++;
+			sleep(1);
+			continue;
+		} else {
+			perror("bind failed");
+			munmap(umem_area, UMEM_SZ);
+			close(sock_fd);
+			return 1;
+		}
+	}
+
+	ksft_ready();
+	ksft_wait();
+
+	/* parent program will write a byte to stdin when its ready for this
+	 * helper to exit
+	 */
+
+	close(sock_fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/lib/xdp_native.bpf.c b/tools/testing/selftests/net/lib/xdp_native.bpf.c
new file mode 100644
index 000000000000..64f05229ab24
--- /dev/null
+++ b/tools/testing/selftests/net/lib/xdp_native.bpf.c
@@ -0,0 +1,680 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stddef.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/if_ether.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include <bpf/bpf_endian.h>
+#include <bpf/bpf_helpers.h>
+
+#define MAX_ADJST_OFFSET 256
+#define MAX_PAYLOAD_LEN 5000
+#define MAX_HDR_LEN 64
+
+extern int bpf_xdp_pull_data(struct xdp_md *xdp, __u32 len) __ksym __weak;
+
+enum {
+	XDP_MODE = 0,
+	XDP_PORT = 1,
+	XDP_ADJST_OFFSET = 2,
+	XDP_ADJST_TAG = 3,
+} xdp_map_setup_keys;
+
+enum {
+	XDP_MODE_PASS = 0,
+	XDP_MODE_DROP = 1,
+	XDP_MODE_TX = 2,
+	XDP_MODE_TAIL_ADJST = 3,
+	XDP_MODE_HEAD_ADJST = 4,
+} xdp_map_modes;
+
+enum {
+	STATS_RX = 0,
+	STATS_PASS = 1,
+	STATS_DROP = 2,
+	STATS_TX = 3,
+	STATS_ABORT = 4,
+} xdp_stats;
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 5);
+	__type(key, __u32);
+	__type(value, __s32);
+} map_xdp_setup SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, 5);
+	__type(key, __u32);
+	__type(value, __u64);
+} map_xdp_stats SEC(".maps");
+
+static __u32 min(__u32 a, __u32 b)
+{
+	return a < b ? a : b;
+}
+
+static void record_stats(struct xdp_md *ctx, __u32 stat_type)
+{
+	__u64 *count;
+
+	count = bpf_map_lookup_elem(&map_xdp_stats, &stat_type);
+
+	if (count)
+		__sync_fetch_and_add(count, 1);
+}
+
+static struct udphdr *filter_udphdr(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph = NULL;
+	void *data, *data_end;
+	struct ethhdr *eth;
+	int err;
+
+	err = bpf_xdp_pull_data(ctx, sizeof(*eth));
+	if (err)
+		return NULL;
+
+	data_end = (void *)(long)ctx->data_end;
+	data = eth = (void *)(long)ctx->data;
+
+	if (data + sizeof(*eth) > data_end)
+		return NULL;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph;
+
+		err = bpf_xdp_pull_data(ctx, sizeof(*eth) + sizeof(*iph) +
+					     sizeof(*udph));
+		if (err)
+			return NULL;
+
+		data_end = (void *)(long)ctx->data_end;
+		data = (void *)(long)ctx->data;
+
+		iph = data + sizeof(*eth);
+
+		if (iph + 1 > (struct iphdr *)data_end ||
+		    iph->protocol != IPPROTO_UDP)
+			return NULL;
+
+		udph = data + sizeof(*iph) + sizeof(*eth);
+	} else if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+		struct ipv6hdr *ipv6h;
+
+		err = bpf_xdp_pull_data(ctx, sizeof(*eth) + sizeof(*ipv6h) +
+					     sizeof(*udph));
+		if (err)
+			return NULL;
+
+		data_end = (void *)(long)ctx->data_end;
+		data = (void *)(long)ctx->data;
+
+		ipv6h = data + sizeof(*eth);
+
+		if (ipv6h + 1 > (struct ipv6hdr *)data_end ||
+		    ipv6h->nexthdr != IPPROTO_UDP)
+			return NULL;
+
+		udph = data + sizeof(*ipv6h) + sizeof(*eth);
+	} else {
+		return NULL;
+	}
+
+	if (udph + 1 > (struct udphdr *)data_end)
+		return NULL;
+
+	if (udph->dest != bpf_htons(port))
+		return NULL;
+
+	record_stats(ctx, STATS_RX);
+
+	return udph;
+}
+
+static int xdp_mode_pass(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph = NULL;
+
+	udph = filter_udphdr(ctx, port);
+	if (!udph)
+		return XDP_PASS;
+
+	record_stats(ctx, STATS_PASS);
+
+	return XDP_PASS;
+}
+
+static int xdp_mode_drop_handler(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph = NULL;
+
+	udph = filter_udphdr(ctx, port);
+	if (!udph)
+		return XDP_PASS;
+
+	record_stats(ctx, STATS_DROP);
+
+	return XDP_DROP;
+}
+
+static void swap_machdr(void *data)
+{
+	struct ethhdr *eth = data;
+	__u8 tmp_mac[ETH_ALEN];
+
+	__builtin_memcpy(tmp_mac, eth->h_source, ETH_ALEN);
+	__builtin_memcpy(eth->h_source, eth->h_dest, ETH_ALEN);
+	__builtin_memcpy(eth->h_dest, tmp_mac, ETH_ALEN);
+}
+
+static int xdp_mode_tx_handler(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph = NULL;
+	void *data, *data_end;
+	struct ethhdr *eth;
+	int err;
+
+	err = bpf_xdp_pull_data(ctx, sizeof(*eth));
+	if (err)
+		return XDP_PASS;
+
+	data_end = (void *)(long)ctx->data_end;
+	data = eth = (void *)(long)ctx->data;
+
+	if (data + sizeof(*eth) > data_end)
+		return XDP_PASS;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph;
+		__be32 tmp_ip;
+
+		err = bpf_xdp_pull_data(ctx, sizeof(*eth) + sizeof(*iph) +
+					     sizeof(*udph));
+		if (err)
+			return XDP_PASS;
+
+		data_end = (void *)(long)ctx->data_end;
+		data = (void *)(long)ctx->data;
+
+		iph = data + sizeof(*eth);
+
+		if (iph + 1 > (struct iphdr *)data_end ||
+		    iph->protocol != IPPROTO_UDP)
+			return XDP_PASS;
+
+		udph = data + sizeof(*iph) + sizeof(*eth);
+
+		if (udph + 1 > (struct udphdr *)data_end)
+			return XDP_PASS;
+		if (udph->dest != bpf_htons(port))
+			return XDP_PASS;
+
+		record_stats(ctx, STATS_RX);
+		eth = data;
+		swap_machdr((void *)eth);
+
+		tmp_ip = iph->saddr;
+		iph->saddr = iph->daddr;
+		iph->daddr = tmp_ip;
+
+		record_stats(ctx, STATS_TX);
+
+		return XDP_TX;
+
+	} else if (eth->h_proto == bpf_htons(ETH_P_IPV6)) {
+		struct in6_addr tmp_ipv6;
+		struct ipv6hdr *ipv6h;
+
+		err = bpf_xdp_pull_data(ctx, sizeof(*eth) + sizeof(*ipv6h) +
+					     sizeof(*udph));
+		if (err)
+			return XDP_PASS;
+
+		data_end = (void *)(long)ctx->data_end;
+		data = (void *)(long)ctx->data;
+
+		ipv6h = data + sizeof(*eth);
+
+		if (ipv6h + 1 > (struct ipv6hdr *)data_end ||
+		    ipv6h->nexthdr != IPPROTO_UDP)
+			return XDP_PASS;
+
+		udph = data + sizeof(*ipv6h) + sizeof(*eth);
+
+		if (udph + 1 > (struct udphdr *)data_end)
+			return XDP_PASS;
+		if (udph->dest != bpf_htons(port))
+			return XDP_PASS;
+
+		record_stats(ctx, STATS_RX);
+		eth = data;
+		swap_machdr((void *)eth);
+
+		__builtin_memcpy(&tmp_ipv6, &ipv6h->saddr, sizeof(tmp_ipv6));
+		__builtin_memcpy(&ipv6h->saddr, &ipv6h->daddr,
+				 sizeof(tmp_ipv6));
+		__builtin_memcpy(&ipv6h->daddr, &tmp_ipv6, sizeof(tmp_ipv6));
+
+		record_stats(ctx, STATS_TX);
+
+		return XDP_TX;
+	}
+
+	return XDP_PASS;
+}
+
+static void *update_pkt(struct xdp_md *ctx, __s16 offset, __u32 *udp_csum)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct udphdr *udph = NULL;
+	struct ethhdr *eth = data;
+	__u32 len, len_new;
+
+	if (data + sizeof(*eth) > data_end)
+		return NULL;
+
+	if (eth->h_proto == bpf_htons(ETH_P_IP)) {
+		struct iphdr *iph = data + sizeof(*eth);
+		__u16 total_len;
+
+		if (iph + 1 > (struct iphdr *)data_end)
+			return NULL;
+
+		iph->tot_len = bpf_htons(bpf_ntohs(iph->tot_len) + offset);
+
+		udph = (void *)eth + sizeof(*iph) + sizeof(*eth);
+		if (!udph || udph + 1 > (struct udphdr *)data_end)
+			return NULL;
+
+		len_new = bpf_htons(bpf_ntohs(udph->len) + offset);
+	} else if (eth->h_proto  == bpf_htons(ETH_P_IPV6)) {
+		struct ipv6hdr *ipv6h = data + sizeof(*eth);
+		__u16 payload_len;
+
+		if (ipv6h + 1 > (struct ipv6hdr *)data_end)
+			return NULL;
+
+		udph = (void *)eth + sizeof(*ipv6h) + sizeof(*eth);
+		if (!udph || udph + 1 > (struct udphdr *)data_end)
+			return NULL;
+
+		*udp_csum = ~((__u32)udph->check);
+
+		len = ipv6h->payload_len;
+		len_new = bpf_htons(bpf_ntohs(len) + offset);
+		ipv6h->payload_len = len_new;
+
+		*udp_csum = bpf_csum_diff(&len, sizeof(len), &len_new,
+					  sizeof(len_new), *udp_csum);
+
+		len = udph->len;
+		len_new = bpf_htons(bpf_ntohs(udph->len) + offset);
+		*udp_csum = bpf_csum_diff(&len, sizeof(len), &len_new,
+					  sizeof(len_new), *udp_csum);
+	} else {
+		return NULL;
+	}
+
+	udph->len = len_new;
+
+	return udph;
+}
+
+static __u16 csum_fold_helper(__u32 csum)
+{
+	return ~((csum & 0xffff) + (csum >> 16)) ? : 0xffff;
+}
+
+static int xdp_adjst_tail_shrnk_data(struct xdp_md *ctx, __u16 offset,
+				     unsigned long hdr_len)
+{
+	char tmp_buff[MAX_ADJST_OFFSET];
+	__u32 buff_pos, udp_csum = 0;
+	struct udphdr *udph = NULL;
+	__u32 buff_len;
+
+	udph = update_pkt(ctx, 0 - offset, &udp_csum);
+	if (!udph)
+		return -1;
+
+	buff_len = bpf_xdp_get_buff_len(ctx);
+
+	offset = (offset & 0x1ff) >= MAX_ADJST_OFFSET ? MAX_ADJST_OFFSET :
+				     offset & 0xff;
+	if (offset == 0)
+		return -1;
+
+	/* Make sure we have enough data to avoid eating the header */
+	if (buff_len - offset < hdr_len)
+		return -1;
+
+	buff_pos = buff_len - offset;
+	if (bpf_xdp_load_bytes(ctx, buff_pos, tmp_buff, offset) < 0)
+		return -1;
+
+	udp_csum = bpf_csum_diff((__be32 *)tmp_buff, offset, 0, 0, udp_csum);
+	udph->check = (__u16)csum_fold_helper(udp_csum);
+
+	if (bpf_xdp_adjust_tail(ctx, 0 - offset) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int xdp_adjst_tail_grow_data(struct xdp_md *ctx, __u16 offset)
+{
+	char tmp_buff[MAX_ADJST_OFFSET];
+	__u32 buff_pos, udp_csum = 0;
+	__u32 buff_len, hdr_len, key;
+	struct udphdr *udph;
+	__s32 *val;
+	__u8 tag;
+
+	/* Proceed to update the packet headers before attempting to adjuste
+	 * the tail. Once the tail is adjusted we lose access to the offset
+	 * amount of data at the end of the packet which is crucial to update
+	 * the checksum.
+	 * Since any failure beyond this would abort the packet, we should
+	 * not worry about passing a packet up the stack with wrong headers
+	 */
+	udph = update_pkt(ctx, offset, &udp_csum);
+	if (!udph)
+		return -1;
+
+	key = XDP_ADJST_TAG;
+	val = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!val)
+		return -1;
+
+	tag = (__u8)(*val);
+
+	for (int i = 0; i < MAX_ADJST_OFFSET; i++)
+		__builtin_memcpy(&tmp_buff[i], &tag, 1);
+
+	offset = (offset & 0x1ff) >= MAX_ADJST_OFFSET ? MAX_ADJST_OFFSET :
+				     offset & 0xff;
+	if (offset == 0)
+		return -1;
+
+	udp_csum = bpf_csum_diff(0, 0, (__be32 *)tmp_buff, offset, udp_csum);
+	udph->check = (__u16)csum_fold_helper(udp_csum);
+
+	buff_len = bpf_xdp_get_buff_len(ctx);
+
+	if (bpf_xdp_adjust_tail(ctx, offset) < 0) {
+		bpf_printk("Failed to adjust tail\n");
+		return -1;
+	}
+
+	if (bpf_xdp_store_bytes(ctx, buff_len, tmp_buff, offset) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int xdp_adjst_tail(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph = NULL;
+	__s32 *adjust_offset, *val;
+	unsigned long hdr_len;
+	void *offset_ptr;
+	__u32 key;
+	__u8 tag;
+	int ret;
+
+	udph = filter_udphdr(ctx, port);
+	if (!udph)
+		return XDP_PASS;
+
+	hdr_len = (void *)udph - (void *)(long)ctx->data +
+		  sizeof(struct udphdr);
+	key = XDP_ADJST_OFFSET;
+	adjust_offset = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!adjust_offset)
+		return XDP_PASS;
+
+	if (*adjust_offset < 0)
+		ret = xdp_adjst_tail_shrnk_data(ctx,
+						(__u16)(0 - *adjust_offset),
+						hdr_len);
+	else
+		ret = xdp_adjst_tail_grow_data(ctx, (__u16)(*adjust_offset));
+	if (ret)
+		goto abort_pkt;
+
+	record_stats(ctx, STATS_PASS);
+	return XDP_PASS;
+
+abort_pkt:
+	record_stats(ctx, STATS_ABORT);
+	return XDP_ABORTED;
+}
+
+static int xdp_adjst_head_shrnk_data(struct xdp_md *ctx, __u64 hdr_len,
+				     __u32 offset)
+{
+	char tmp_buff[MAX_ADJST_OFFSET];
+	struct udphdr *udph;
+	void *offset_ptr;
+	__u32 udp_csum = 0;
+
+	/* Update the length information in the IP and UDP headers before
+	 * adjusting the headroom. This simplifies accessing the relevant
+	 * fields in the IP and UDP headers for fragmented packets. Any
+	 * failure beyond this point will result in the packet being aborted,
+	 * so we don't need to worry about incorrect length information for
+	 * passed packets.
+	 */
+	udph = update_pkt(ctx, (__s16)(0 - offset), &udp_csum);
+	if (!udph)
+		return -1;
+
+	offset = (offset & 0x1ff) >= MAX_ADJST_OFFSET ? MAX_ADJST_OFFSET :
+				     offset & 0xff;
+	if (offset == 0)
+		return -1;
+
+	if (bpf_xdp_load_bytes(ctx, hdr_len, tmp_buff, offset) < 0)
+		return -1;
+
+	udp_csum = bpf_csum_diff((__be32 *)tmp_buff, offset, 0, 0, udp_csum);
+
+	udph->check = (__u16)csum_fold_helper(udp_csum);
+
+	if (bpf_xdp_load_bytes(ctx, 0, tmp_buff, MAX_ADJST_OFFSET) < 0)
+		return -1;
+
+	if (bpf_xdp_adjust_head(ctx, offset) < 0)
+		return -1;
+
+	if (offset > MAX_ADJST_OFFSET)
+		return -1;
+
+	if (hdr_len > MAX_ADJST_OFFSET || hdr_len == 0)
+		return -1;
+
+	/* Added here to handle clang complain about negative value */
+	hdr_len = hdr_len & 0xff;
+
+	if (hdr_len == 0)
+		return -1;
+
+	if (bpf_xdp_store_bytes(ctx, 0, tmp_buff, hdr_len) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int xdp_adjst_head_grow_data(struct xdp_md *ctx, __u64 hdr_len,
+				    __u32 offset)
+{
+	char hdr_buff[MAX_HDR_LEN];
+	char data_buff[MAX_ADJST_OFFSET];
+	void *offset_ptr;
+	__s32 *val;
+	__u32 key;
+	__u8 tag;
+	__u32 udp_csum = 0;
+	struct udphdr *udph;
+
+	udph = update_pkt(ctx, (__s16)(offset), &udp_csum);
+	if (!udph)
+		return -1;
+
+	key = XDP_ADJST_TAG;
+	val = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!val)
+		return -1;
+
+	tag = (__u8)(*val);
+	for (int i = 0; i < MAX_ADJST_OFFSET; i++)
+		__builtin_memcpy(&data_buff[i], &tag, 1);
+
+	offset = (offset & 0x1ff) >= MAX_ADJST_OFFSET ? MAX_ADJST_OFFSET :
+				     offset & 0xff;
+	if (offset == 0)
+		return -1;
+
+	udp_csum = bpf_csum_diff(0, 0, (__be32 *)data_buff, offset, udp_csum);
+	udph->check = (__u16)csum_fold_helper(udp_csum);
+
+	if (hdr_len > MAX_ADJST_OFFSET || hdr_len == 0)
+		return -1;
+
+	/* Added here to handle clang complain about negative value */
+	hdr_len = hdr_len & 0xff;
+
+	if (hdr_len == 0)
+		return -1;
+
+	if (bpf_xdp_load_bytes(ctx, 0, hdr_buff, hdr_len) < 0)
+		return -1;
+
+	if (offset > MAX_ADJST_OFFSET)
+		return -1;
+
+	if (bpf_xdp_adjust_head(ctx, 0 - offset) < 0)
+		return -1;
+
+	if (bpf_xdp_store_bytes(ctx, 0, hdr_buff, hdr_len) < 0)
+		return -1;
+
+	if (bpf_xdp_store_bytes(ctx, hdr_len, data_buff, offset) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int xdp_head_adjst(struct xdp_md *ctx, __u16 port)
+{
+	struct udphdr *udph_ptr = NULL;
+	__u32 key, size, hdr_len;
+	__s32 *val;
+	int res;
+
+	/* Filter packets based on UDP port */
+	udph_ptr = filter_udphdr(ctx, port);
+	if (!udph_ptr)
+		return XDP_PASS;
+
+	hdr_len = (void *)udph_ptr - (void *)(long)ctx->data +
+		  sizeof(struct udphdr);
+
+	key = XDP_ADJST_OFFSET;
+	val = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!val)
+		return XDP_PASS;
+
+	switch (*val) {
+	case -16:
+	case 16:
+		size = 16;
+		break;
+	case -32:
+	case 32:
+		size = 32;
+		break;
+	case -64:
+	case 64:
+		size = 64;
+		break;
+	case -128:
+	case 128:
+		size = 128;
+		break;
+	case -256:
+	case 256:
+		size = 256;
+		break;
+	default:
+		bpf_printk("Invalid adjustment offset: %d\n", *val);
+		goto abort;
+	}
+
+	if (*val < 0)
+		res = xdp_adjst_head_grow_data(ctx, hdr_len, size);
+	else
+		res = xdp_adjst_head_shrnk_data(ctx, hdr_len, size);
+
+	if (res)
+		goto abort;
+
+	record_stats(ctx, STATS_PASS);
+	return XDP_PASS;
+
+abort:
+	record_stats(ctx, STATS_ABORT);
+	return XDP_ABORTED;
+}
+
+static int xdp_prog_common(struct xdp_md *ctx)
+{
+	__u32 key, *port;
+	__s32 *mode;
+
+	key = XDP_MODE;
+	mode = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!mode)
+		return XDP_PASS;
+
+	key = XDP_PORT;
+	port = bpf_map_lookup_elem(&map_xdp_setup, &key);
+	if (!port)
+		return XDP_PASS;
+
+	switch (*mode) {
+	case XDP_MODE_PASS:
+		return xdp_mode_pass(ctx, (__u16)(*port));
+	case XDP_MODE_DROP:
+		return xdp_mode_drop_handler(ctx, (__u16)(*port));
+	case XDP_MODE_TX:
+		return xdp_mode_tx_handler(ctx, (__u16)(*port));
+	case XDP_MODE_TAIL_ADJST:
+		return xdp_adjst_tail(ctx, (__u16)(*port));
+	case XDP_MODE_HEAD_ADJST:
+		return xdp_head_adjst(ctx, (__u16)(*port));
+	}
+
+	/* Default action is to simple pass */
+	return XDP_PASS;
+}
+
+SEC("xdp")
+int xdp_prog(struct xdp_md *ctx)
+{
+	return xdp_prog_common(ctx);
+}
+
+SEC("xdp.frags")
+int xdp_prog_frags(struct xdp_md *ctx)
+{
+	return xdp_prog_common(ctx);
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/net/link_netns.py b/tools/testing/selftests/net/link_netns.py
new file mode 100755
index 000000000000..aab043c59d69
--- /dev/null
+++ b/tools/testing/selftests/net/link_netns.py
@@ -0,0 +1,141 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import time
+
+from lib.py import ksft_run, ksft_exit, ksft_true
+from lib.py import ip
+from lib.py import NetNS, NetNSEnter
+from lib.py import RtnlFamily
+
+
+LINK_NETNSID = 100
+
+
+def test_event() -> None:
+    with NetNS() as ns1, NetNS() as ns2:
+        with NetNSEnter(str(ns2)):
+            rtnl = RtnlFamily()
+
+        rtnl.ntf_subscribe("rtnlgrp-link")
+
+        ip(f"netns set {ns2} {LINK_NETNSID}", ns=str(ns1))
+        ip(f"link add netns {ns1} link-netnsid {LINK_NETNSID} dummy1 type dummy")
+        ip(f"link add netns {ns1} dummy2 type dummy", ns=str(ns2))
+
+        ip("link del dummy1", ns=str(ns1))
+        ip("link del dummy2", ns=str(ns1))
+
+        time.sleep(1)
+        rtnl.check_ntf()
+        ksft_true(rtnl.async_msg_queue.empty(),
+                  "Received unexpected link notification")
+
+
+def validate_link_netns(netns, ifname, link_netnsid) -> bool:
+    link_info = ip(f"-d link show dev {ifname}", ns=netns, json=True)
+    if not link_info:
+        return False
+    return link_info[0].get("link_netnsid") == link_netnsid
+
+
+def test_link_net() -> None:
+    configs = [
+        # type, common args, type args, fallback to dev_net
+        ("ipvlan", "link dummy1", "", False),
+        ("macsec", "link dummy1", "", False),
+        ("macvlan", "link dummy1", "", False),
+        ("macvtap", "link dummy1", "", False),
+        ("vlan", "link dummy1", "id 100", False),
+        ("gre", "", "local 192.0.2.1", True),
+        ("vti", "", "local 192.0.2.1", True),
+        ("ipip", "", "local 192.0.2.1", True),
+        ("ip6gre", "", "local 2001:db8::1", True),
+        ("ip6tnl", "", "local 2001:db8::1", True),
+        ("vti6", "", "local 2001:db8::1", True),
+        ("sit", "", "local 192.0.2.1", True),
+        ("xfrm", "", "if_id 1", True),
+    ]
+
+    with NetNS() as ns1, NetNS() as ns2, NetNS() as ns3:
+        net1, net2, net3 = str(ns1), str(ns2), str(ns3)
+
+        # prepare link netnsid  and a dummy link needed by certain drivers
+        ip(f"netns set {net3} {LINK_NETNSID}", ns=str(net2))
+        ip("link add dummy1 type dummy", ns=net3)
+
+        cases = [
+            # source, "netns", "link-netns", expected link-netns
+            (net3, None, None, None, None),
+            (net3, net2, None, None, LINK_NETNSID),
+            (net2, None, net3, LINK_NETNSID, LINK_NETNSID),
+            (net1, net2, net3, LINK_NETNSID, LINK_NETNSID),
+        ]
+
+        for src_net, netns, link_netns, exp1, exp2 in cases:
+            tgt_net = netns or src_net
+            for typ, cargs, targs, fb_dev_net in configs:
+                cmd = "link add"
+                if netns:
+                    cmd += f" netns {netns}"
+                if link_netns:
+                    cmd += f" link-netns {link_netns}"
+                cmd += f" {cargs} foo type {typ} {targs}"
+                ip(cmd, ns=src_net)
+                if fb_dev_net:
+                    ksft_true(validate_link_netns(tgt_net, "foo", exp1),
+                              f"{typ} link_netns validation failed")
+                else:
+                    ksft_true(validate_link_netns(tgt_net, "foo", exp2),
+                              f"{typ} link_netns validation failed")
+                ip(f"link del foo", ns=tgt_net)
+
+
+def test_peer_net() -> None:
+    types = [
+        "vxcan",
+        "netkit",
+        "veth",
+    ]
+
+    with NetNS() as ns1, NetNS() as ns2, NetNS() as ns3, NetNS() as ns4:
+        net1, net2, net3, net4 = str(ns1), str(ns2), str(ns3), str(ns4)
+
+        ip(f"netns set {net3} {LINK_NETNSID}", ns=str(net2))
+
+        cases = [
+            # source, "netns", "link-netns", "peer netns", expected
+            (net1, None, None, None, None),
+            (net1, net2, None, None, None),
+            (net2, None, net3, None, LINK_NETNSID),
+            (net1, net2, net3, None, None),
+            (net2, None, None, net3, LINK_NETNSID),
+            (net1, net2, None, net3, LINK_NETNSID),
+            (net2, None, net2, net3, LINK_NETNSID),
+            (net1, net2, net4, net3, LINK_NETNSID),
+        ]
+
+        for src_net, netns, link_netns, peer_netns, exp in cases:
+            tgt_net = netns or src_net
+            for typ in types:
+                cmd = "link add"
+                if netns:
+                    cmd += f" netns {netns}"
+                if link_netns:
+                    cmd += f" link-netns {link_netns}"
+                cmd += f" foo type {typ}"
+                if peer_netns:
+                    cmd += f" peer netns {peer_netns}"
+                ip(cmd, ns=src_net)
+                ksft_true(validate_link_netns(tgt_net, "foo", exp),
+                          f"{typ} peer_netns validation failed")
+                ip(f"link del foo", ns=tgt_net)
+
+
+def main() -> None:
+    ksft_run([test_event, test_link_net, test_peer_net])
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/net/lwt_dst_cache_ref_loop.sh b/tools/testing/selftests/net/lwt_dst_cache_ref_loop.sh
new file mode 100755
index 000000000000..881eb399798f
--- /dev/null
+++ b/tools/testing/selftests/net/lwt_dst_cache_ref_loop.sh
@@ -0,0 +1,246 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Author: Justin Iurman <justin.iurman@uliege.be>
+#
+# WARNING
+# -------
+# This is just a dummy script that triggers encap cases with possible dst cache
+# reference loops in affected lwt users (see list below). Some cases are
+# pathological configurations for simplicity, others are valid. Overall, we
+# don't want this issue to happen, no matter what. In order to catch any
+# reference loops, kmemleak MUST be used. The results alone are always blindly
+# successful, don't rely on them. Note that the following tests may crash the
+# kernel if the fix to prevent lwtunnel_{input|output|xmit}() reentry loops is
+# not present.
+#
+# Affected lwt users so far (please update accordingly if needed):
+#  - ila_lwt (output only)
+#  - ioam6_iptunnel (output only)
+#  - rpl_iptunnel (both input and output)
+#  - seg6_iptunnel (both input and output)
+
+source lib.sh
+
+check_compatibility()
+{
+	setup_ns tmp_node &>/dev/null
+	if [ $? != 0 ]; then
+		echo "SKIP: Cannot create netns."
+		exit $ksft_skip
+	fi
+
+	ip link add name veth0 netns $tmp_node type veth \
+		peer name veth1 netns $tmp_node &>/dev/null
+	local ret=$?
+
+	ip -netns $tmp_node link set veth0 up &>/dev/null
+	ret=$((ret + $?))
+
+	ip -netns $tmp_node link set veth1 up &>/dev/null
+	ret=$((ret + $?))
+
+	if [ $ret != 0 ]; then
+		echo "SKIP: Cannot configure links."
+		cleanup_ns $tmp_node
+		exit $ksft_skip
+	fi
+
+	lsmod 2>/dev/null | grep -q "ila"
+	ila_lsmod=$?
+	[ $ila_lsmod != 0 ] && modprobe ila &>/dev/null
+
+	ip -netns $tmp_node route add 2001:db8:1::/64 \
+		encap ila 1:2:3:4 csum-mode no-action ident-type luid \
+			hook-type output \
+		dev veth0 &>/dev/null
+
+	ip -netns $tmp_node route add 2001:db8:2::/64 \
+		encap ioam6 trace prealloc type 0x800000 ns 0 size 4 \
+		dev veth0 &>/dev/null
+
+	ip -netns $tmp_node route add 2001:db8:3::/64 \
+		encap rpl segs 2001:db8:3::1 dev veth0 &>/dev/null
+
+	ip -netns $tmp_node route add 2001:db8:4::/64 \
+		encap seg6 mode inline segs 2001:db8:4::1 dev veth0 &>/dev/null
+
+	ip -netns $tmp_node -6 route 2>/dev/null | grep -q "encap ila"
+	skip_ila=$?
+
+	ip -netns $tmp_node -6 route 2>/dev/null | grep -q "encap ioam6"
+	skip_ioam6=$?
+
+	ip -netns $tmp_node -6 route 2>/dev/null | grep -q "encap rpl"
+	skip_rpl=$?
+
+	ip -netns $tmp_node -6 route 2>/dev/null | grep -q "encap seg6"
+	skip_seg6=$?
+
+	cleanup_ns $tmp_node
+}
+
+setup()
+{
+	setup_ns alpha beta gamma &>/dev/null
+
+	ip link add name veth-alpha netns $alpha type veth \
+		peer name veth-betaL netns $beta &>/dev/null
+
+	ip link add name veth-betaR netns $beta type veth \
+		peer name veth-gamma netns $gamma &>/dev/null
+
+	ip -netns $alpha link set veth-alpha name veth0 &>/dev/null
+	ip -netns $beta link set veth-betaL name veth0 &>/dev/null
+	ip -netns $beta link set veth-betaR name veth1 &>/dev/null
+	ip -netns $gamma link set veth-gamma name veth0 &>/dev/null
+
+	ip -netns $alpha addr add 2001:db8:1::2/64 dev veth0 &>/dev/null
+	ip -netns $alpha link set veth0 up &>/dev/null
+	ip -netns $alpha link set lo up &>/dev/null
+	ip -netns $alpha route add 2001:db8:2::/64 \
+		via 2001:db8:1::1 dev veth0 &>/dev/null
+
+	ip -netns $beta addr add 2001:db8:1::1/64 dev veth0 &>/dev/null
+	ip -netns $beta addr add 2001:db8:2::1/64 dev veth1 &>/dev/null
+	ip -netns $beta link set veth0 up &>/dev/null
+	ip -netns $beta link set veth1 up &>/dev/null
+	ip -netns $beta link set lo up &>/dev/null
+	ip -netns $beta route del 2001:db8:2::/64
+	ip -netns $beta route add 2001:db8:2::/64 dev veth1
+	ip netns exec $beta \
+		sysctl -wq net.ipv6.conf.all.forwarding=1 &>/dev/null
+
+	ip -netns $gamma addr add 2001:db8:2::2/64 dev veth0 &>/dev/null
+	ip -netns $gamma link set veth0 up &>/dev/null
+	ip -netns $gamma link set lo up &>/dev/null
+	ip -netns $gamma route add 2001:db8:1::/64 \
+		via 2001:db8:2::1 dev veth0 &>/dev/null
+
+	sleep 1
+
+	ip netns exec $alpha ping6 -c 5 -W 1 2001:db8:2::2 &>/dev/null
+	if [ $? != 0 ]; then
+		echo "SKIP: Setup failed."
+		exit $ksft_skip
+	fi
+
+	sleep 1
+}
+
+cleanup()
+{
+	cleanup_ns $alpha $beta $gamma
+	[ $ila_lsmod != 0 ] && modprobe -r ila &>/dev/null
+}
+
+run_ila()
+{
+	if [ $skip_ila != 0 ]; then
+		echo "SKIP: ila (output)"
+		return
+	fi
+
+	ip -netns $beta route del 2001:db8:2::/64
+	ip -netns $beta route add 2001:db8:2:0:0:0:0:2/128 \
+		encap ila 2001:db8:2:0 csum-mode no-action ident-type luid \
+			hook-type output \
+		dev veth1 &>/dev/null
+	sleep 1
+
+	echo "TEST: ila (output)"
+	ip netns exec $beta ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+
+	ip -netns $beta route del 2001:db8:2:0:0:0:0:2/128
+	ip -netns $beta route add 2001:db8:2::/64 dev veth1
+	sleep 1
+}
+
+run_ioam6()
+{
+	if [ $skip_ioam6 != 0 ]; then
+		echo "SKIP: ioam6 (output)"
+		return
+	fi
+
+	ip -netns $beta route change 2001:db8:2::/64 \
+		encap ioam6 trace prealloc type 0x800000 ns 1 size 4 \
+		dev veth1 &>/dev/null
+	sleep 1
+
+	echo "TEST: ioam6 (output)"
+	ip netns exec $beta ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+}
+
+run_rpl()
+{
+	if [ $skip_rpl != 0 ]; then
+		echo "SKIP: rpl (input)"
+		echo "SKIP: rpl (output)"
+		return
+	fi
+
+	ip -netns $beta route change 2001:db8:2::/64 \
+		encap rpl segs 2001:db8:2::2 \
+		dev veth1 &>/dev/null
+	sleep 1
+
+	echo "TEST: rpl (input)"
+	ip netns exec $alpha ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+
+	echo "TEST: rpl (output)"
+	ip netns exec $beta ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+}
+
+run_seg6()
+{
+	if [ $skip_seg6 != 0 ]; then
+		echo "SKIP: seg6 (input)"
+		echo "SKIP: seg6 (output)"
+		return
+	fi
+
+	ip -netns $beta route change 2001:db8:2::/64 \
+		encap seg6 mode inline segs 2001:db8:2::2 \
+		dev veth1 &>/dev/null
+	sleep 1
+
+	echo "TEST: seg6 (input)"
+	ip netns exec $alpha ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+
+	echo "TEST: seg6 (output)"
+	ip netns exec $beta ping6 -c 2 -W 1 2001:db8:2::2 &>/dev/null
+	sleep 1
+}
+
+run()
+{
+	run_ila
+	run_ioam6
+	run_rpl
+	run_seg6
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges."
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool."
+	exit $ksft_skip
+fi
+
+check_compatibility
+
+trap cleanup EXIT
+
+setup
+run
+
+exit $ksft_pass
diff --git a/tools/testing/selftests/net/mptcp/.gitignore b/tools/testing/selftests/net/mptcp/.gitignore
new file mode 100644
index 000000000000..833279fb34e2
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/.gitignore
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+mptcp_connect
+mptcp_diag
+mptcp_inq
+mptcp_sockopt
+pm_nl_ctl
+*.pcap
diff --git a/tools/testing/selftests/net/mptcp/Makefile b/tools/testing/selftests/net/mptcp/Makefile
new file mode 100644
index 000000000000..15d144a25d82
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/Makefile
@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+CFLAGS += -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES)
+
+TEST_PROGS := \
+	diag.sh \
+	mptcp_connect.sh \
+	mptcp_connect_checksum.sh \
+	mptcp_connect_mmap.sh \
+	mptcp_connect_sendfile.sh \
+	mptcp_join.sh \
+	mptcp_sockopt.sh \
+	pm_netlink.sh \
+	simult_flows.sh \
+	userspace_pm.sh \
+# end of TEST_PROGS
+
+TEST_GEN_FILES := \
+	mptcp_connect \
+	mptcp_diag \
+	mptcp_inq \
+	mptcp_sockopt \
+	pm_nl_ctl \
+# end of TEST_GEN_FILES
+
+TEST_FILES := \
+	mptcp_lib.sh \
+	settings \
+# end of TEST_FILES
+
+TEST_INCLUDES := ../lib.sh $(wildcard ../lib/sh/*.sh)
+
+EXTRA_CLEAN := *.pcap
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/mptcp/config b/tools/testing/selftests/net/mptcp/config
new file mode 100644
index 000000000000..59051ee2a986
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/config
@@ -0,0 +1,36 @@
+CONFIG_INET_DIAG=m
+CONFIG_INET_MPTCP_DIAG=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IPV6=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_KALLSYMS=y
+CONFIG_MPTCP=y
+CONFIG_MPTCP_IPV6=y
+CONFIG_NET_ACT_CSUM=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_CLS_FW=m
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NETFILTER_NETLINK=m
+CONFIG_NETFILTER_XTABLES=m
+CONFIG_NETFILTER_XTABLES_LEGACY=y
+CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NF_TABLES=m
+CONFIG_NF_TABLES_INET=y
+CONFIG_NFT_COMPAT=m
+CONFIG_NFT_SOCKET=m
+CONFIG_NFT_TPROXY=m
+CONFIG_SYN_COOKIES=y
+CONFIG_VETH=y
diff --git a/tools/testing/selftests/net/mptcp/diag.sh b/tools/testing/selftests/net/mptcp/diag.sh
new file mode 100755
index 000000000000..d847ff1737c3
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -0,0 +1,419 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it, especially because there were too many before having
+# address all other issues detected by shellcheck.
+#shellcheck disable=SC2086
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ns=""
+timeout_poll=30
+timeout_test=$((timeout_poll * 2 + 1))
+ret=0
+
+flush_pids()
+{
+	# mptcp_connect in join mode will sleep a bit before completing,
+	# give it some time
+	sleep 1.1
+
+	ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGUSR1 &>/dev/null
+
+	for _ in $(seq $((timeout_poll * 10))); do
+		[ -z "$(ip netns pids "${ns}")" ] && break
+		sleep 0.1
+	done
+}
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	ip netns pids "${ns}" | xargs --no-run-if-empty kill -SIGKILL &>/dev/null
+
+	mptcp_lib_ns_exit "${ns}"
+}
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_tools ip ss
+
+get_msk_inuse()
+{
+	ip netns exec $ns cat /proc/net/protocols | awk '$1~/^MPTCP$/{print $3}'
+}
+
+__chk_nr()
+{
+	local command="$1"
+	local expected=$2
+	local msg="$3"
+	local skip="${4-SKIP}"
+	local nr
+
+	nr=$(eval $command)
+
+	mptcp_lib_print_title "$msg"
+	if [ "$nr" != "$expected" ]; then
+		if [ "$nr" = "$skip" ] && ! mptcp_lib_expect_all_features; then
+			mptcp_lib_pr_skip "Feature probably not supported"
+			mptcp_lib_result_skip "${msg}"
+		else
+			mptcp_lib_pr_fail "expected $expected found $nr"
+			mptcp_lib_result_fail "${msg}"
+			ret=${KSFT_FAIL}
+		fi
+	else
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	fi
+}
+
+__chk_msk_nr()
+{
+	local condition=$1
+	shift 1
+
+	__chk_nr "ss -inmHMN $ns | $condition" "$@"
+}
+
+chk_msk_nr()
+{
+	__chk_msk_nr "grep -c token:" "$@"
+}
+
+chk_listener_nr()
+{
+	local expected=$1
+	local msg="$2"
+
+	__chk_nr "ss -nlHMON $ns | wc -l" "$expected" "$msg - mptcp" 0
+	__chk_nr "ss -nlHtON $ns | wc -l" "$expected" "$msg - subflows"
+}
+
+wait_msk_nr()
+{
+	local condition="grep -c token:"
+	local expected=$1
+	local timeout=20
+	local msg nr
+	local max=0
+	local i=0
+
+	shift 1
+	msg=$*
+
+	while [ $i -lt $timeout ]; do
+		nr=$(ss -inmHMN $ns | $condition)
+		[ $nr == $expected ] && break;
+		[ $nr -gt $max ] && max=$nr
+		i=$((i + 1))
+		sleep 1
+	done
+
+	mptcp_lib_print_title "$msg"
+	if [ $i -ge $timeout ]; then
+		mptcp_lib_pr_fail "timeout while expecting $expected max $max last $nr"
+		mptcp_lib_result_fail "${msg} # timeout"
+		ret=${KSFT_FAIL}
+	elif [ $nr != $expected ]; then
+		mptcp_lib_pr_fail "expected $expected found $nr"
+		mptcp_lib_result_fail "${msg} # unexpected result"
+		ret=${KSFT_FAIL}
+	else
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	fi
+}
+
+chk_msk_fallback_nr()
+{
+	__chk_msk_nr "grep -c fallback" "$@"
+}
+
+chk_msk_remote_key_nr()
+{
+	__chk_msk_nr "grep -c remote_key" "$@"
+}
+
+__chk_listen()
+{
+	local filter="$1"
+	local expected=$2
+	local msg="$3"
+
+	__chk_nr "ss -N $ns -Ml '$filter' | grep -c LISTEN" "$expected" "$msg" 0
+}
+
+chk_msk_listen()
+{
+	lport=$1
+
+	# destination port search should always return empty list
+	__chk_listen "dport $lport" 0 "listen match for dport $lport"
+
+	# should return 'our' mptcp listen socket
+	__chk_listen "sport $lport" 1 "listen match for sport $lport"
+
+	__chk_listen "src inet:0.0.0.0:$lport" 1 "listen match for saddr and sport"
+
+	__chk_listen "" 1 "all listen sockets"
+
+	nr=$(ss -Ml $filter | wc -l)
+}
+
+chk_msk_inuse()
+{
+	local expected=$1
+	local msg="....chk ${2:-${expected}} msk in use"
+	local listen_nr
+
+	if [ "${expected}" -eq 0 ]; then
+		msg+=" after flush"
+	fi
+
+	listen_nr=$(ss -N "${ns}" -Ml | grep -c LISTEN)
+	expected=$((expected + listen_nr))
+
+	for _ in $(seq 10); do
+		if [ "$(get_msk_inuse)" -eq $expected ]; then
+			break
+		fi
+		sleep 0.1
+	done
+
+	__chk_nr get_msk_inuse $expected "${msg}" 0
+}
+
+# $1: cestab nr
+chk_msk_cestab()
+{
+	local expected=$1
+	local msg="....chk ${2:-${expected}} cestab"
+
+	if [ "${expected}" -eq 0 ]; then
+		msg+=" after flush"
+	fi
+
+	__chk_nr "mptcp_lib_get_counter ${ns} MPTcpExtMPCurrEstab" \
+		 "${expected}" "${msg}" ""
+}
+
+chk_dump_one()
+{
+	local ss_token
+	local token
+	local msg
+
+	ss_token="$(ss -inmHMN $ns |
+		    mptcp_lib_get_info_value "token" "token")"
+
+	token="$(ip netns exec $ns ./mptcp_diag -t $ss_token |\
+		 awk -F':[ \t]+' '/^token/ {print $2}')"
+
+	msg="....chk dump_one"
+
+	mptcp_lib_print_title "$msg"
+	if [ -n "$ss_token" ] && [ "$ss_token" = "$token" ]; then
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	else
+		mptcp_lib_pr_fail "expected $ss_token found $token"
+		mptcp_lib_result_fail "${msg}"
+		ret=${KSFT_FAIL}
+	fi
+}
+
+chk_dump_subflow()
+{
+	local inet_diag_token
+	local subflow_line
+	local ss_output
+	local ss_token
+	local msg
+
+	ss_output=$(ss -tniN $ns)
+
+	subflow_line=$(echo "$ss_output" | \
+		       grep -m1 -Eo '[0-9.]+:[0-9].+ +[0-9.]+:[0-9.]+')
+
+	ss_token=$(echo "$ss_output" | grep -m1 -Eo 'token:[^ ]+')
+
+	inet_diag_token=$(ip netns exec $ns ./mptcp_diag -s "$subflow_line" | \
+			  grep -Eo 'token:[^ ]+')
+
+	msg="....chk dump_subflow"
+
+	mptcp_lib_print_title "$msg"
+	if [ -n "$ss_token" ] && [ "$ss_token" = "$inet_diag_token" ]; then
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	else
+		mptcp_lib_pr_fail "expected $ss_token found $inet_diag_token"
+		mptcp_lib_result_fail "${msg}"
+		ret=${KSFT_FAIL}
+	fi
+}
+
+msk_info_get_value()
+{
+	local port="${1}"
+	local info="${2}"
+
+	ss -N "${ns}" -inHM dport "${port}" | \
+		mptcp_lib_get_info_value "${info}" "${info}"
+}
+
+chk_msk_info()
+{
+	local port="${1}"
+	local info="${2}"
+	local cnt="${3}"
+	local msg="....chk ${info}"
+	local delta_ms=250  # half what we waited before, just to be sure
+	local now
+
+	now=$(msk_info_get_value "${port}" "${info}")
+
+	mptcp_lib_print_title "${msg}"
+	if { [ -z "${cnt}" ] || [ -z "${now}" ]; } &&
+	   ! mptcp_lib_expect_all_features; then
+		mptcp_lib_pr_skip "Feature probably not supported"
+		mptcp_lib_result_skip "${msg}"
+	elif [ "$((cnt + delta_ms))" -lt "${now}" ]; then
+		mptcp_lib_pr_ok
+		mptcp_lib_result_pass "${msg}"
+	else
+		mptcp_lib_pr_fail "value of ${info} changed by $((now - cnt))ms," \
+				  "expected at least ${delta_ms}ms"
+		mptcp_lib_result_fail "${msg}"
+		ret=${KSFT_FAIL}
+	fi
+}
+
+chk_last_time_info()
+{
+	local port="${1}"
+	local data_sent data_recv ack_recv
+
+	data_sent=$(msk_info_get_value "${port}" "last_data_sent")
+	data_recv=$(msk_info_get_value "${port}" "last_data_recv")
+	ack_recv=$(msk_info_get_value "${port}" "last_ack_recv")
+
+	sleep 0.5  # wait to check after if the timestamps difference
+
+	chk_msk_info "${port}" "last_data_sent" "${data_sent}"
+	chk_msk_info "${port}" "last_data_recv" "${data_recv}"
+	chk_msk_info "${port}" "last_ack_recv" "${ack_recv}"
+}
+
+wait_connected()
+{
+	local listener_ns="${1}"
+	local port="${2}"
+
+	local port_hex i
+
+	port_hex="$(printf "%04X" "${port}")"
+	for i in $(seq 10); do
+		ip netns exec ${listener_ns} grep -q " 0100007F:${port_hex} " /proc/net/tcp && break
+		sleep 0.1
+	done
+}
+
+trap cleanup EXIT
+mptcp_lib_ns_init ns
+
+echo "a" | \
+	timeout ${timeout_test} \
+		ip netns exec $ns \
+			./mptcp_connect -p 10000 -l -t ${timeout_poll} -w 20 \
+				0.0.0.0 >/dev/null &
+mptcp_lib_wait_local_port_listen $ns 10000
+chk_msk_nr 0 "no msk on netns creation"
+chk_msk_listen 10000
+
+echo "b" | \
+	timeout ${timeout_test} \
+		ip netns exec $ns \
+			./mptcp_connect -p 10000 -r 0 -t ${timeout_poll} -w 20 \
+				127.0.0.1 >/dev/null &
+wait_connected $ns 10000
+chk_msk_nr 2 "after MPC handshake"
+chk_last_time_info 10000
+chk_msk_remote_key_nr 2 "....chk remote_key"
+chk_msk_fallback_nr 0 "....chk no fallback"
+chk_msk_inuse 2
+chk_msk_cestab 2
+chk_dump_one
+chk_dump_subflow
+flush_pids
+
+chk_msk_inuse 0 "2->0"
+chk_msk_cestab 0 "2->0"
+
+echo "a" | \
+	timeout ${timeout_test} \
+		ip netns exec $ns \
+			./mptcp_connect -p 10001 -l -s TCP -t ${timeout_poll} -w 20 \
+				0.0.0.0 >/dev/null &
+mptcp_lib_wait_local_port_listen $ns 10001
+echo "b" | \
+	timeout ${timeout_test} \
+		ip netns exec $ns \
+			./mptcp_connect -p 10001 -r 0 -t ${timeout_poll} -w 20 \
+				127.0.0.1 >/dev/null &
+wait_connected $ns 10001
+chk_msk_fallback_nr 1 "check fallback"
+chk_msk_inuse 1
+chk_msk_cestab 1
+flush_pids
+
+chk_msk_inuse 0 "1->0"
+chk_msk_cestab 0 "1->0"
+
+NR_CLIENTS=100
+for I in $(seq 1 $NR_CLIENTS); do
+	echo "a" | \
+		timeout ${timeout_test} \
+			ip netns exec $ns \
+				./mptcp_connect -p $((I+10001)) -l -w 20 \
+					-t ${timeout_poll} 0.0.0.0 >/dev/null &
+done
+mptcp_lib_wait_local_port_listen $ns $((NR_CLIENTS + 10001))
+
+for I in $(seq 1 $NR_CLIENTS); do
+	echo "b" | \
+		timeout ${timeout_test} \
+			ip netns exec $ns \
+				./mptcp_connect -p $((I+10001)) -w 20 \
+					-t ${timeout_poll} 127.0.0.1 >/dev/null &
+done
+
+wait_msk_nr $((NR_CLIENTS*2)) "many msk socket present"
+chk_msk_inuse $((NR_CLIENTS*2)) "many"
+chk_msk_cestab $((NR_CLIENTS*2)) "many"
+flush_pids
+
+chk_msk_inuse 0 "many->0"
+chk_msk_cestab 0 "many->0"
+
+chk_listener_nr 0 "no listener sockets"
+NR_SERVERS=100
+for I in $(seq 1 $NR_SERVERS); do
+	ip netns exec $ns ./mptcp_connect -p $((I + 20001)) \
+		-t ${timeout_poll} -l 0.0.0.0 >/dev/null 2>&1 &
+done
+mptcp_lib_wait_local_port_listen $ns $((NR_SERVERS + 20001))
+
+chk_listener_nr $NR_SERVERS "many listener sockets"
+
+# graceful termination
+for I in $(seq 1 $NR_SERVERS); do
+	echo a | ip netns exec $ns ./mptcp_connect -p $((I + 20001)) 127.0.0.1 >/dev/null 2>&1 &
+done
+flush_pids
+
+mptcp_lib_result_print_all_tap
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c b/tools/testing/selftests/net/mptcp/mptcp_connect.c
new file mode 100644
index 000000000000..404a77bf366a
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -0,0 +1,1557 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <signal.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+#include <sys/random.h>
+#include <sys/sendfile.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+
+#include <arpa/inet.h>
+
+#include <netdb.h>
+#include <netinet/in.h>
+
+#include <linux/tcp.h>
+#include <linux/time_types.h>
+#include <linux/sockios.h>
+
+extern int optind;
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+#ifndef TCP_ULP
+#define TCP_ULP 31
+#endif
+
+static int  poll_timeout = 10 * 1000;
+static bool listen_mode;
+static bool quit;
+
+enum cfg_mode {
+	CFG_MODE_POLL,
+	CFG_MODE_MMAP,
+	CFG_MODE_SENDFILE,
+};
+
+enum cfg_peek {
+	CFG_NONE_PEEK,
+	CFG_WITH_PEEK,
+	CFG_AFTER_PEEK,
+};
+
+static enum cfg_mode cfg_mode = CFG_MODE_POLL;
+static enum cfg_peek cfg_peek = CFG_NONE_PEEK;
+static const char *cfg_host;
+static const char *cfg_port	= "12000";
+static int cfg_sock_proto	= IPPROTO_MPTCP;
+static int pf = AF_INET;
+static int cfg_sndbuf;
+static int cfg_rcvbuf;
+static bool cfg_join;
+static bool cfg_remove;
+static unsigned int cfg_time;
+static unsigned int cfg_do_w;
+static int cfg_wait;
+static uint32_t cfg_mark;
+static char *cfg_input;
+static int cfg_repeat = 1;
+static int cfg_truncate;
+static int cfg_rcv_trunc;
+
+struct cfg_cmsg_types {
+	unsigned int cmsg_enabled:1;
+	unsigned int timestampns:1;
+	unsigned int tcp_inq:1;
+};
+
+struct cfg_sockopt_types {
+	unsigned int transparent:1;
+	unsigned int mptfo:1;
+};
+
+struct tcp_inq_state {
+	unsigned int last;
+	bool expect_eof;
+};
+
+struct wstate {
+	char buf[8192];
+	unsigned int len;
+	unsigned int off;
+	unsigned int total_len;
+};
+
+static struct tcp_inq_state tcp_inq;
+
+static struct cfg_cmsg_types cfg_cmsg_types;
+static struct cfg_sockopt_types cfg_sockopt_types;
+
+static void die_usage(void)
+{
+	fprintf(stderr, "Usage: mptcp_connect [-6] [-c cmsg] [-f offset] [-i file] [-I num] [-j] [-l] "
+		"[-m mode] [-M mark] [-o option] [-p port] [-P mode] [-r num] [-R num] "
+		"[-s MPTCP|TCP] [-S num] [-t num] [-T num] [-w sec] connect_address\n");
+	fprintf(stderr, "\t-6 use ipv6\n");
+	fprintf(stderr, "\t-c cmsg -- test cmsg type <cmsg>\n");
+	fprintf(stderr, "\t-f offset -- stop the I/O after receiving and sending the specified amount "
+		"of bytes. If there are unread bytes in the receive queue, that will cause a MPTCP "
+		"fastclose at close/shutdown. If offset is negative, expect the peer to close before "
+		"all the local data as been sent, thus toleration errors on write and EPIPE signals\n");
+	fprintf(stderr, "\t-i file -- read the data to send from the given file instead of stdin");
+	fprintf(stderr, "\t-I num -- repeat the transfer 'num' times. In listen mode accepts num "
+		"incoming connections, in client mode, disconnect and reconnect to the server\n");
+	fprintf(stderr, "\t-j     -- add additional sleep at connection start and tear down "
+		"-- for MPJ tests\n");
+	fprintf(stderr, "\t-l     -- listens mode, accepts incoming connection\n");
+	fprintf(stderr, "\t-m [poll|mmap|sendfile] -- use poll(default)/mmap+write/sendfile\n");
+	fprintf(stderr, "\t-M mark -- set socket packet mark\n");
+	fprintf(stderr, "\t-o option -- test sockopt <option>\n");
+	fprintf(stderr, "\t-p num -- use port num\n");
+	fprintf(stderr,
+		"\t-P [saveWithPeek|saveAfterPeek] -- save data with/after MSG_PEEK form tcp socket\n");
+	fprintf(stderr, "\t-r num -- enable slow mode, limiting each write to num bytes "
+		"-- for remove addr tests\n");
+	fprintf(stderr, "\t-R num -- set SO_RCVBUF to num\n");
+	fprintf(stderr, "\t-s [MPTCP|TCP] -- use mptcp(default) or tcp sockets\n");
+	fprintf(stderr, "\t-S num -- set SO_SNDBUF to num\n");
+	fprintf(stderr, "\t-t num -- set poll timeout to num\n");
+	fprintf(stderr, "\t-T num -- set expected runtime to num ms\n");
+	fprintf(stderr, "\t-w num -- wait num sec before closing the socket\n");
+	exit(1);
+}
+
+static void xerror(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(1);
+}
+
+static void handle_signal(int nr)
+{
+	quit = true;
+}
+
+static const char *getxinfo_strerr(int err)
+{
+	if (err == EAI_SYSTEM)
+		return strerror(errno);
+
+	return gai_strerror(err);
+}
+
+static void xgetnameinfo(const struct sockaddr *addr, socklen_t addrlen,
+			 char *host, socklen_t hostlen,
+			 char *serv, socklen_t servlen)
+{
+	int flags = NI_NUMERICHOST | NI_NUMERICSERV;
+	int err = getnameinfo(addr, addrlen, host, hostlen, serv, servlen,
+			      flags);
+
+	if (err) {
+		const char *errstr = getxinfo_strerr(err);
+
+		fprintf(stderr, "Fatal: getnameinfo: %s\n", errstr);
+		exit(1);
+	}
+}
+
+static void xgetaddrinfo(const char *node, const char *service,
+			 struct addrinfo *hints,
+			 struct addrinfo **res)
+{
+	int err;
+
+again:
+	err = getaddrinfo(node, service, hints, res);
+	if (err) {
+		const char *errstr;
+
+		/* glibc starts to support MPTCP since v2.42.
+		 * For older versions, use IPPROTO_TCP to resolve,
+		 * and use TCP/MPTCP to create socket.
+		 * Link: https://sourceware.org/git/?p=glibc.git;a=commit;h=a8e9022e0f82
+		 */
+		if (err == EAI_SOCKTYPE) {
+			hints->ai_protocol = IPPROTO_TCP;
+			goto again;
+		}
+
+		errstr = getxinfo_strerr(err);
+
+		fprintf(stderr, "Fatal: getaddrinfo(%s:%s): %s\n",
+			node ? node : "", service ? service : "", errstr);
+		exit(1);
+	}
+}
+
+static void set_rcvbuf(int fd, unsigned int size)
+{
+	int err;
+
+	err = setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &size, sizeof(size));
+	if (err) {
+		perror("set SO_RCVBUF");
+		exit(1);
+	}
+}
+
+static void set_sndbuf(int fd, unsigned int size)
+{
+	int err;
+
+	err = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &size, sizeof(size));
+	if (err) {
+		perror("set SO_SNDBUF");
+		exit(1);
+	}
+}
+
+static void set_mark(int fd, uint32_t mark)
+{
+	int err;
+
+	err = setsockopt(fd, SOL_SOCKET, SO_MARK, &mark, sizeof(mark));
+	if (err) {
+		perror("set SO_MARK");
+		exit(1);
+	}
+}
+
+static void set_transparent(int fd, int pf)
+{
+	int one = 1;
+
+	switch (pf) {
+	case AF_INET:
+		if (-1 == setsockopt(fd, SOL_IP, IP_TRANSPARENT, &one, sizeof(one)))
+			perror("IP_TRANSPARENT");
+		break;
+	case AF_INET6:
+		if (-1 == setsockopt(fd, IPPROTO_IPV6, IPV6_TRANSPARENT, &one, sizeof(one)))
+			perror("IPV6_TRANSPARENT");
+		break;
+	}
+}
+
+static void set_mptfo(int fd, int pf)
+{
+	int qlen = 25;
+
+	if (setsockopt(fd, IPPROTO_TCP, TCP_FASTOPEN, &qlen, sizeof(qlen)) == -1)
+		perror("TCP_FASTOPEN");
+}
+
+static int do_ulp_so(int sock, const char *name)
+{
+	return setsockopt(sock, IPPROTO_TCP, TCP_ULP, name, strlen(name));
+}
+
+#define X(m)	xerror("%s:%u: %s: failed for proto %d at line %u", __FILE__, __LINE__, (m), proto, line)
+static void sock_test_tcpulp(int sock, int proto, unsigned int line)
+{
+	socklen_t buflen = 8;
+	char buf[8] = "";
+	int ret = getsockopt(sock, IPPROTO_TCP, TCP_ULP, buf, &buflen);
+
+	if (ret != 0)
+		X("getsockopt");
+
+	if (buflen > 0) {
+		if (strcmp(buf, "mptcp") != 0)
+			xerror("unexpected ULP '%s' for proto %d at line %u", buf, proto, line);
+		ret = do_ulp_so(sock, "tls");
+		if (ret == 0)
+			X("setsockopt");
+	} else if (proto == IPPROTO_MPTCP) {
+		ret = do_ulp_so(sock, "tls");
+		if (ret != -1)
+			X("setsockopt");
+	}
+
+	ret = do_ulp_so(sock, "mptcp");
+	if (ret != -1)
+		X("setsockopt");
+
+#undef X
+}
+
+#define SOCK_TEST_TCPULP(s, p) sock_test_tcpulp((s), (p), __LINE__)
+
+static int sock_listen_mptcp(const char * const listenaddr,
+			     const char * const port)
+{
+	int sock = -1;
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+		.ai_flags = AI_PASSIVE | AI_NUMERICHOST
+	};
+
+	hints.ai_family = pf;
+
+	struct addrinfo *a, *addr;
+	int one = 1;
+
+	xgetaddrinfo(listenaddr, port, &hints, &addr);
+	hints.ai_family = pf;
+
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, cfg_sock_proto);
+		if (sock < 0)
+			continue;
+
+		SOCK_TEST_TCPULP(sock, cfg_sock_proto);
+
+		if (-1 == setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one,
+				     sizeof(one)))
+			perror("setsockopt");
+
+		if (cfg_sockopt_types.transparent)
+			set_transparent(sock, pf);
+
+		if (cfg_sockopt_types.mptfo)
+			set_mptfo(sock, pf);
+
+		if (bind(sock, a->ai_addr, a->ai_addrlen) == 0)
+			break; /* success */
+
+		perror("bind");
+		close(sock);
+		sock = -1;
+	}
+
+	freeaddrinfo(addr);
+
+	if (sock < 0) {
+		fprintf(stderr, "Could not create listen socket\n");
+		return sock;
+	}
+
+	SOCK_TEST_TCPULP(sock, cfg_sock_proto);
+
+	if (listen(sock, 20)) {
+		perror("listen");
+		close(sock);
+		return -1;
+	}
+
+	SOCK_TEST_TCPULP(sock, cfg_sock_proto);
+
+	return sock;
+}
+
+static int sock_connect_mptcp(const char * const remoteaddr,
+			      const char * const port, int proto,
+			      struct addrinfo **peer,
+			      int infd, struct wstate *winfo)
+{
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+	};
+	struct addrinfo *a, *addr;
+	int syn_copied = 0;
+	int sock = -1;
+
+	hints.ai_family = pf;
+
+	xgetaddrinfo(remoteaddr, port, &hints, &addr);
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, proto);
+		if (sock < 0) {
+			perror("socket");
+			continue;
+		}
+
+		SOCK_TEST_TCPULP(sock, proto);
+
+		if (cfg_mark)
+			set_mark(sock, cfg_mark);
+
+		if (cfg_sockopt_types.mptfo) {
+			if (!winfo->total_len)
+				winfo->total_len = winfo->len = read(infd, winfo->buf,
+								     sizeof(winfo->buf));
+
+			syn_copied = sendto(sock, winfo->buf, winfo->len, MSG_FASTOPEN,
+					    a->ai_addr, a->ai_addrlen);
+			if (syn_copied >= 0) {
+				winfo->off = syn_copied;
+				winfo->len -= syn_copied;
+				*peer = a;
+				break; /* success */
+			}
+		} else {
+			if (connect(sock, a->ai_addr, a->ai_addrlen) == 0) {
+				*peer = a;
+				break; /* success */
+			}
+		}
+		if (cfg_sockopt_types.mptfo) {
+			perror("sendto()");
+			close(sock);
+			sock = -1;
+		} else {
+			perror("connect()");
+			close(sock);
+			sock = -1;
+		}
+	}
+
+	freeaddrinfo(addr);
+	if (sock != -1)
+		SOCK_TEST_TCPULP(sock, proto);
+	return sock;
+}
+
+static size_t do_rnd_write(const int fd, char *buf, const size_t len)
+{
+	static bool first = true;
+	unsigned int do_w;
+	ssize_t bw;
+
+	do_w = rand() & 0xffff;
+	if (do_w == 0 || do_w > len)
+		do_w = len;
+
+	if (cfg_join && first && do_w > 100)
+		do_w = 100;
+
+	if (cfg_remove && do_w > cfg_do_w)
+		do_w = cfg_do_w;
+
+	bw = write(fd, buf, do_w);
+	if (bw < 0)
+		return bw;
+
+	/* let the join handshake complete, before going on */
+	if (cfg_join && first) {
+		usleep(200000);
+		first = false;
+	}
+
+	if (cfg_remove)
+		usleep(200000);
+
+	return bw;
+}
+
+static size_t do_write(const int fd, char *buf, const size_t len)
+{
+	size_t offset = 0;
+
+	while (offset < len) {
+		size_t written;
+		ssize_t bw;
+
+		bw = write(fd, buf + offset, len - offset);
+		if (bw < 0) {
+			perror("write");
+			return 0;
+		}
+
+		written = (size_t)bw;
+		offset += written;
+	}
+
+	return offset;
+}
+
+static void process_cmsg(struct msghdr *msgh)
+{
+	struct __kernel_timespec ts;
+	bool inq_found = false;
+	bool ts_found = false;
+	unsigned int inq = 0;
+	struct cmsghdr *cmsg;
+
+	for (cmsg = CMSG_FIRSTHDR(msgh); cmsg ; cmsg = CMSG_NXTHDR(msgh, cmsg)) {
+		if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SO_TIMESTAMPNS_NEW) {
+			memcpy(&ts, CMSG_DATA(cmsg), sizeof(ts));
+			ts_found = true;
+			continue;
+		}
+		if (cmsg->cmsg_level == IPPROTO_TCP && cmsg->cmsg_type == TCP_CM_INQ) {
+			memcpy(&inq, CMSG_DATA(cmsg), sizeof(inq));
+			inq_found = true;
+			continue;
+		}
+
+	}
+
+	if (cfg_cmsg_types.timestampns) {
+		if (!ts_found)
+			xerror("TIMESTAMPNS not present\n");
+	}
+
+	if (cfg_cmsg_types.tcp_inq) {
+		if (!inq_found)
+			xerror("TCP_INQ not present\n");
+
+		if (inq > 1024)
+			xerror("tcp_inq %u is larger than one kbyte\n", inq);
+		tcp_inq.last = inq;
+	}
+}
+
+static ssize_t do_recvmsg_cmsg(const int fd, char *buf, const size_t len)
+{
+	char msg_buf[8192];
+	struct iovec iov = {
+		.iov_base = buf,
+		.iov_len = len,
+	};
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = msg_buf,
+		.msg_controllen = sizeof(msg_buf),
+	};
+	int flags = 0;
+	unsigned int last_hint = tcp_inq.last;
+	int ret = recvmsg(fd, &msg, flags);
+
+	if (ret <= 0) {
+		if (ret == 0 && tcp_inq.expect_eof)
+			return ret;
+
+		if (ret == 0 && cfg_cmsg_types.tcp_inq)
+			if (last_hint != 1 && last_hint != 0)
+				xerror("EOF but last tcp_inq hint was %u\n", last_hint);
+
+		return ret;
+	}
+
+	if (tcp_inq.expect_eof)
+		xerror("expected EOF, last_hint %u, now %u\n",
+		       last_hint, tcp_inq.last);
+
+	if (msg.msg_controllen && !cfg_cmsg_types.cmsg_enabled)
+		xerror("got %lu bytes of cmsg data, expected 0\n",
+		       (unsigned long)msg.msg_controllen);
+
+	if (msg.msg_controllen == 0 && cfg_cmsg_types.cmsg_enabled)
+		xerror("%s\n", "got no cmsg data");
+
+	if (msg.msg_controllen)
+		process_cmsg(&msg);
+
+	if (cfg_cmsg_types.tcp_inq) {
+		if ((size_t)ret < len && last_hint > (unsigned int)ret) {
+			if (ret + 1 != (int)last_hint) {
+				int next = read(fd, msg_buf, sizeof(msg_buf));
+
+				xerror("read %u of %u, last_hint was %u tcp_inq hint now %u next_read returned %d/%m\n",
+				       ret, (unsigned int)len, last_hint, tcp_inq.last, next);
+			} else {
+				tcp_inq.expect_eof = true;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static ssize_t do_rnd_read(const int fd, char *buf, const size_t len)
+{
+	int ret = 0;
+	char tmp[16384];
+	size_t cap = rand();
+
+	cap &= 0xffff;
+
+	if (cap == 0)
+		cap = 1;
+	else if (cap > len)
+		cap = len;
+
+	if (cfg_peek == CFG_WITH_PEEK) {
+		ret = recv(fd, buf, cap, MSG_PEEK);
+		ret = (ret < 0) ? ret : read(fd, tmp, ret);
+	} else if (cfg_peek == CFG_AFTER_PEEK) {
+		ret = recv(fd, buf, cap, MSG_PEEK);
+		ret = (ret < 0) ? ret : read(fd, buf, cap);
+	} else if (cfg_cmsg_types.cmsg_enabled) {
+		ret = do_recvmsg_cmsg(fd, buf, cap);
+	} else {
+		ret = read(fd, buf, cap);
+	}
+
+	return ret;
+}
+
+static void set_nonblock(int fd, bool nonblock)
+{
+	int flags = fcntl(fd, F_GETFL);
+
+	if (flags == -1)
+		return;
+
+	if (nonblock)
+		fcntl(fd, F_SETFL, flags | O_NONBLOCK);
+	else
+		fcntl(fd, F_SETFL, flags & ~O_NONBLOCK);
+}
+
+static void shut_wr(int fd)
+{
+	/* Close our write side, ev. give some time
+	 * for address notification and/or checking
+	 * the current status
+	 */
+	if (cfg_wait)
+		usleep(cfg_wait);
+
+	shutdown(fd, SHUT_WR);
+}
+
+static int copyfd_io_poll(int infd, int peerfd, int outfd,
+			  bool *in_closed_after_out, struct wstate *winfo)
+{
+	struct pollfd fds = {
+		.fd = peerfd,
+		.events = POLLIN | POLLOUT,
+	};
+	unsigned int total_wlen = 0, total_rlen = 0;
+
+	set_nonblock(peerfd, true);
+
+	for (;;) {
+		char rbuf[8192];
+		ssize_t len;
+
+		if (fds.events == 0 || quit)
+			break;
+
+		switch (poll(&fds, 1, poll_timeout)) {
+		case -1:
+			if (errno == EINTR)
+				continue;
+			perror("poll");
+			return 1;
+		case 0:
+			fprintf(stderr, "%s: poll timed out (events: "
+				"POLLIN %u, POLLOUT %u)\n", __func__,
+				fds.events & POLLIN, fds.events & POLLOUT);
+			return 2;
+		}
+
+		if (fds.revents & POLLIN) {
+			ssize_t rb = sizeof(rbuf);
+
+			/* limit the total amount of read data to the trunc value*/
+			if (cfg_truncate > 0) {
+				if (rb + total_rlen > cfg_truncate)
+					rb = cfg_truncate - total_rlen;
+				len = read(peerfd, rbuf, rb);
+			} else {
+				len = do_rnd_read(peerfd, rbuf, sizeof(rbuf));
+			}
+			if (len == 0) {
+				/* no more data to receive:
+				 * peer has closed its write side
+				 */
+				fds.events &= ~POLLIN;
+
+				if ((fds.events & POLLOUT) == 0) {
+					*in_closed_after_out = true;
+					/* and nothing more to send */
+					break;
+				}
+
+			/* Else, still have data to transmit */
+			} else if (len < 0) {
+				if (cfg_rcv_trunc)
+					return 0;
+				perror("read");
+				return 3;
+			}
+
+			total_rlen += len;
+			do_write(outfd, rbuf, len);
+		}
+
+		if (fds.revents & POLLOUT) {
+			if (winfo->len == 0) {
+				winfo->off = 0;
+				winfo->len = read(infd, winfo->buf, sizeof(winfo->buf));
+			}
+
+			if (winfo->len > 0) {
+				ssize_t bw;
+
+				/* limit the total amount of written data to the trunc value */
+				if (cfg_truncate > 0 && winfo->len + total_wlen > cfg_truncate)
+					winfo->len = cfg_truncate - total_wlen;
+
+				bw = do_rnd_write(peerfd, winfo->buf + winfo->off, winfo->len);
+				if (bw < 0) {
+					/* expected reset, continue to read */
+					if (cfg_rcv_trunc &&
+					    (errno == ECONNRESET ||
+					     errno == EPIPE)) {
+						fds.events &= ~POLLOUT;
+						continue;
+					}
+
+					perror("write");
+					return 111;
+				}
+
+				winfo->off += bw;
+				winfo->len -= bw;
+				total_wlen += bw;
+			} else if (winfo->len == 0) {
+				/* We have no more data to send. */
+				fds.events &= ~POLLOUT;
+
+				if ((fds.events & POLLIN) == 0)
+					/* ... and peer also closed already */
+					break;
+
+				shut_wr(peerfd);
+			} else {
+				if (errno == EINTR)
+					continue;
+				perror("read");
+				return 4;
+			}
+		}
+
+		if (fds.revents & (POLLERR | POLLNVAL)) {
+			if (cfg_rcv_trunc) {
+				fds.events &= ~(POLLERR | POLLNVAL);
+				continue;
+			}
+			fprintf(stderr, "Unexpected revents: "
+				"POLLERR/POLLNVAL(%x)\n", fds.revents);
+			return 5;
+		}
+
+		if (cfg_truncate > 0 && total_wlen >= cfg_truncate &&
+		    total_rlen >= cfg_truncate)
+			break;
+	}
+
+	/* leave some time for late join/announce */
+	if (cfg_remove && !quit)
+		usleep(cfg_wait);
+
+	return 0;
+}
+
+static int do_recvfile(int infd, int outfd)
+{
+	ssize_t r;
+
+	do {
+		char buf[16384];
+
+		r = do_rnd_read(infd, buf, sizeof(buf));
+		if (r > 0) {
+			if (write(outfd, buf, r) != r)
+				break;
+		} else if (r < 0) {
+			perror("read");
+		}
+	} while (r > 0);
+
+	return (int)r;
+}
+
+static int spool_buf(int fd, struct wstate *winfo)
+{
+	while (winfo->len) {
+		int ret = write(fd, winfo->buf + winfo->off, winfo->len);
+
+		if (ret < 0) {
+			perror("write");
+			return 4;
+		}
+		winfo->off += ret;
+		winfo->len -= ret;
+	}
+	return 0;
+}
+
+static int do_mmap(int infd, int outfd, unsigned int size,
+		   struct wstate *winfo)
+{
+	char *inbuf = mmap(NULL, size, PROT_READ, MAP_SHARED, infd, 0);
+	ssize_t ret = 0, off = winfo->total_len;
+	size_t rem;
+
+	if (inbuf == MAP_FAILED) {
+		perror("mmap");
+		return 1;
+	}
+
+	ret = spool_buf(outfd, winfo);
+	if (ret < 0)
+		return ret;
+
+	rem = size - winfo->total_len;
+
+	while (rem > 0) {
+		ret = write(outfd, inbuf + off, rem);
+
+		if (ret < 0) {
+			perror("write");
+			break;
+		}
+
+		off += ret;
+		rem -= ret;
+	}
+
+	munmap(inbuf, size);
+	return rem;
+}
+
+static int get_infd_size(int fd)
+{
+	struct stat sb;
+	ssize_t count;
+	int err;
+
+	err = fstat(fd, &sb);
+	if (err < 0) {
+		perror("fstat");
+		return -1;
+	}
+
+	if ((sb.st_mode & S_IFMT) != S_IFREG) {
+		fprintf(stderr, "%s: stdin is not a regular file\n", __func__);
+		return -2;
+	}
+
+	count = sb.st_size;
+	if (count > INT_MAX) {
+		fprintf(stderr, "File too large: %zu\n", count);
+		return -3;
+	}
+
+	return (int)count;
+}
+
+static int do_sendfile(int infd, int outfd, unsigned int count,
+		       struct wstate *winfo)
+{
+	int ret = spool_buf(outfd, winfo);
+
+	if (ret < 0)
+		return ret;
+
+	count -= winfo->total_len;
+
+	while (count > 0) {
+		ssize_t r;
+
+		r = sendfile(outfd, infd, NULL, count);
+		if (r < 0) {
+			perror("sendfile");
+			return 3;
+		}
+
+		count -= r;
+	}
+
+	return 0;
+}
+
+static int copyfd_io_mmap(int infd, int peerfd, int outfd,
+			  unsigned int size, bool *in_closed_after_out,
+			  struct wstate *winfo)
+{
+	int err;
+
+	if (listen_mode) {
+		err = do_recvfile(peerfd, outfd);
+		if (err)
+			return err;
+
+		err = do_mmap(infd, peerfd, size, winfo);
+	} else {
+		err = do_mmap(infd, peerfd, size, winfo);
+		if (err)
+			return err;
+
+		shut_wr(peerfd);
+
+		err = do_recvfile(peerfd, outfd);
+		*in_closed_after_out = true;
+	}
+
+	return err;
+}
+
+static int copyfd_io_sendfile(int infd, int peerfd, int outfd,
+			      unsigned int size, bool *in_closed_after_out, struct wstate *winfo)
+{
+	int err;
+
+	if (listen_mode) {
+		err = do_recvfile(peerfd, outfd);
+		if (err)
+			return err;
+
+		err = do_sendfile(infd, peerfd, size, winfo);
+	} else {
+		err = do_sendfile(infd, peerfd, size, winfo);
+		if (err)
+			return err;
+
+		shut_wr(peerfd);
+
+		err = do_recvfile(peerfd, outfd);
+		*in_closed_after_out = true;
+	}
+
+	return err;
+}
+
+static int copyfd_io(int infd, int peerfd, int outfd, bool close_peerfd, struct wstate *winfo)
+{
+	bool in_closed_after_out = false;
+	struct timespec start, end;
+	int file_size;
+	int ret;
+
+	if (cfg_time && (clock_gettime(CLOCK_MONOTONIC, &start) < 0))
+		xerror("can not fetch start time %d", errno);
+
+	switch (cfg_mode) {
+	case CFG_MODE_POLL:
+		ret = copyfd_io_poll(infd, peerfd, outfd, &in_closed_after_out,
+				     winfo);
+		break;
+
+	case CFG_MODE_MMAP:
+		file_size = get_infd_size(infd);
+		if (file_size < 0)
+			return file_size;
+		ret = copyfd_io_mmap(infd, peerfd, outfd, file_size,
+				     &in_closed_after_out, winfo);
+		break;
+
+	case CFG_MODE_SENDFILE:
+		file_size = get_infd_size(infd);
+		if (file_size < 0)
+			return file_size;
+		ret = copyfd_io_sendfile(infd, peerfd, outfd, file_size,
+					 &in_closed_after_out, winfo);
+		break;
+
+	default:
+		fprintf(stderr, "Invalid mode %d\n", cfg_mode);
+
+		die_usage();
+		return 1;
+	}
+
+	if (ret)
+		return ret;
+
+	if (close_peerfd)
+		close(peerfd);
+
+	if (cfg_time) {
+		unsigned int delta_ms;
+
+		if (clock_gettime(CLOCK_MONOTONIC, &end) < 0)
+			xerror("can not fetch end time %d", errno);
+		delta_ms = (end.tv_sec - start.tv_sec) * 1000 + (end.tv_nsec - start.tv_nsec) / 1000000;
+		if (delta_ms > cfg_time) {
+			xerror("transfer slower than expected! runtime %d ms, expected %d ms",
+			       delta_ms, cfg_time);
+		}
+
+		/* show the runtime only if this end shutdown(wr) before receiving the EOF,
+		 * (that is, if this end got the longer runtime)
+		 */
+		if (in_closed_after_out)
+			fprintf(stderr, "%d", delta_ms);
+	}
+
+	return 0;
+}
+
+static void check_sockaddr(int pf, struct sockaddr_storage *ss,
+			   socklen_t salen)
+{
+	struct sockaddr_in6 *sin6;
+	struct sockaddr_in *sin;
+	socklen_t wanted_size = 0;
+
+	switch (pf) {
+	case AF_INET:
+		wanted_size = sizeof(*sin);
+		sin = (void *)ss;
+		if (!sin->sin_port)
+			fprintf(stderr, "accept: something wrong: ip connection from port 0");
+		break;
+	case AF_INET6:
+		wanted_size = sizeof(*sin6);
+		sin6 = (void *)ss;
+		if (!sin6->sin6_port)
+			fprintf(stderr, "accept: something wrong: ipv6 connection from port 0");
+		break;
+	default:
+		fprintf(stderr, "accept: Unknown pf %d, salen %u\n", pf, salen);
+		return;
+	}
+
+	if (salen != wanted_size)
+		fprintf(stderr, "accept: size mismatch, got %d expected %d\n",
+			(int)salen, wanted_size);
+
+	if (ss->ss_family != pf)
+		fprintf(stderr, "accept: pf mismatch, expect %d, ss_family is %d\n",
+			(int)ss->ss_family, pf);
+}
+
+static void check_getpeername(int fd, struct sockaddr_storage *ss, socklen_t salen)
+{
+	struct sockaddr_storage peerss;
+	socklen_t peersalen = sizeof(peerss);
+
+	if (getpeername(fd, (struct sockaddr *)&peerss, &peersalen) < 0) {
+		perror("getpeername");
+		return;
+	}
+
+	if (peersalen != salen) {
+		fprintf(stderr, "%s: %d vs %d\n", __func__, peersalen, salen);
+		return;
+	}
+
+	if (memcmp(ss, &peerss, peersalen)) {
+		char a[INET6_ADDRSTRLEN];
+		char b[INET6_ADDRSTRLEN];
+		char c[INET6_ADDRSTRLEN];
+		char d[INET6_ADDRSTRLEN];
+
+		xgetnameinfo((struct sockaddr *)ss, salen,
+			     a, sizeof(a), b, sizeof(b));
+
+		xgetnameinfo((struct sockaddr *)&peerss, peersalen,
+			     c, sizeof(c), d, sizeof(d));
+
+		fprintf(stderr, "%s: memcmp failure: accept %s vs peername %s, %s vs %s salen %d vs %d\n",
+			__func__, a, c, b, d, peersalen, salen);
+	}
+}
+
+static void check_getpeername_connect(int fd)
+{
+	struct sockaddr_storage ss;
+	socklen_t salen = sizeof(ss);
+	char a[INET6_ADDRSTRLEN];
+	char b[INET6_ADDRSTRLEN];
+	const char *iface;
+	size_t len;
+
+	if (getpeername(fd, (struct sockaddr *)&ss, &salen) < 0) {
+		perror("getpeername");
+		return;
+	}
+
+	xgetnameinfo((struct sockaddr *)&ss, salen,
+		     a, sizeof(a), b, sizeof(b));
+
+	iface = strchr(cfg_host, '%');
+	if (iface)
+		len = iface - cfg_host;
+	else
+		len = strlen(cfg_host) + 1;
+
+	if (strncmp(cfg_host, a, len) || strcmp(cfg_port, b))
+		fprintf(stderr, "%s: %s vs %s, %s vs %s\n", __func__,
+			cfg_host, a, cfg_port, b);
+}
+
+static void maybe_close(int fd)
+{
+	unsigned int r = rand();
+
+	if (!(cfg_join || cfg_remove || cfg_repeat > 1) && (r & 1))
+		close(fd);
+}
+
+int main_loop_s(int listensock)
+{
+	struct sockaddr_storage ss;
+	struct wstate winfo;
+	struct pollfd polls;
+	socklen_t salen;
+	int remotesock;
+	int err = 0;
+	int fd = 0;
+
+again:
+	polls.fd = listensock;
+	polls.events = POLLIN;
+
+	switch (poll(&polls, 1, poll_timeout)) {
+	case -1:
+		perror("poll");
+		return 1;
+	case 0:
+		fprintf(stderr, "%s: timed out\n", __func__);
+		close(listensock);
+		return 2;
+	}
+
+	salen = sizeof(ss);
+	remotesock = accept(listensock, (struct sockaddr *)&ss, &salen);
+	if (remotesock >= 0) {
+		maybe_close(listensock);
+		check_sockaddr(pf, &ss, salen);
+		check_getpeername(remotesock, &ss, salen);
+
+		if (cfg_input) {
+			fd = open(cfg_input, O_RDONLY);
+			if (fd < 0)
+				xerror("can't open %s: %d", cfg_input, errno);
+		}
+
+		SOCK_TEST_TCPULP(remotesock, 0);
+
+		memset(&winfo, 0, sizeof(winfo));
+		err = copyfd_io(fd, remotesock, 1, true, &winfo);
+	} else {
+		perror("accept");
+		return 1;
+	}
+
+	if (cfg_input)
+		close(fd);
+
+	if (!err && --cfg_repeat > 0)
+		goto again;
+
+	return err;
+}
+
+static void init_rng(void)
+{
+	unsigned int foo;
+
+	if (getrandom(&foo, sizeof(foo), 0) == -1) {
+		perror("getrandom");
+		exit(1);
+	}
+
+	srand(foo);
+}
+
+static void xsetsockopt(int fd, int level, int optname, const void *optval, socklen_t optlen)
+{
+	int err;
+
+	err = setsockopt(fd, level, optname, optval, optlen);
+	if (err) {
+		perror("setsockopt");
+		exit(1);
+	}
+}
+
+static void apply_cmsg_types(int fd, const struct cfg_cmsg_types *cmsg)
+{
+	static const unsigned int on = 1;
+
+	if (cmsg->timestampns)
+		xsetsockopt(fd, SOL_SOCKET, SO_TIMESTAMPNS_NEW, &on, sizeof(on));
+	if (cmsg->tcp_inq)
+		xsetsockopt(fd, IPPROTO_TCP, TCP_INQ, &on, sizeof(on));
+}
+
+static void parse_cmsg_types(const char *type)
+{
+	char *next = strchr(type, ',');
+	unsigned int len = 0;
+
+	cfg_cmsg_types.cmsg_enabled = 1;
+
+	if (next) {
+		parse_cmsg_types(next + 1);
+		len = next - type;
+	} else {
+		len = strlen(type);
+	}
+
+	if (strncmp(type, "TIMESTAMPNS", len) == 0) {
+		cfg_cmsg_types.timestampns = 1;
+		return;
+	}
+
+	if (strncmp(type, "TCPINQ", len) == 0) {
+		cfg_cmsg_types.tcp_inq = 1;
+		return;
+	}
+
+	fprintf(stderr, "Unrecognized cmsg option %s\n", type);
+	exit(1);
+}
+
+static void parse_setsock_options(const char *name)
+{
+	char *next = strchr(name, ',');
+	unsigned int len = 0;
+
+	if (next) {
+		parse_setsock_options(next + 1);
+		len = next - name;
+	} else {
+		len = strlen(name);
+	}
+
+	if (strncmp(name, "TRANSPARENT", len) == 0) {
+		cfg_sockopt_types.transparent = 1;
+		return;
+	}
+
+	if (strncmp(name, "MPTFO", len) == 0) {
+		cfg_sockopt_types.mptfo = 1;
+		return;
+	}
+
+	fprintf(stderr, "Unrecognized setsockopt option %s\n", name);
+	exit(1);
+}
+
+void xdisconnect(int fd)
+{
+	socklen_t addrlen = sizeof(struct sockaddr_storage);
+	struct sockaddr_storage addr, empty;
+	int msec_sleep = 10;
+	void *raw_addr;
+	int i, cmdlen;
+	char cmd[128];
+
+	/* get the local address and convert it to string */
+	if (getsockname(fd, (struct sockaddr *)&addr, &addrlen) < 0)
+		xerror("getsockname");
+
+	if (addr.ss_family == AF_INET)
+		raw_addr = &(((struct sockaddr_in *)&addr)->sin_addr);
+	else if (addr.ss_family == AF_INET6)
+		raw_addr = &(((struct sockaddr_in6 *)&addr)->sin6_addr);
+	else
+		xerror("bad family");
+
+	strcpy(cmd, "ss -Mnt | grep -q ");
+	cmdlen = strlen(cmd);
+	if (!inet_ntop(addr.ss_family, raw_addr, &cmd[cmdlen],
+		       sizeof(cmd) - cmdlen))
+		xerror("inet_ntop");
+
+	shutdown(fd, SHUT_WR);
+
+	/*
+	 * wait until the pending data is completely flushed and all
+	 * the sockets reached the closed status.
+	 * disconnect will bypass/ignore/drop any pending data.
+	 */
+	for (i = 0; ; i += msec_sleep) {
+		/* closed socket are not listed by 'ss' */
+		if (system(cmd) != 0)
+			break;
+
+		if (i > poll_timeout)
+			xerror("timeout while waiting for spool to complete");
+		usleep(msec_sleep * 1000);
+	}
+
+	memset(&empty, 0, sizeof(empty));
+	empty.ss_family = AF_UNSPEC;
+	if (connect(fd, (struct sockaddr *)&empty, addrlen) < 0)
+		xerror("can't disconnect: %d", errno);
+}
+
+int main_loop(void)
+{
+	int fd = 0, ret, fd_in = 0;
+	struct addrinfo *peer;
+	struct wstate winfo;
+
+	if (cfg_input && cfg_sockopt_types.mptfo) {
+		fd_in = open(cfg_input, O_RDONLY);
+		if (fd_in < 0)
+			xerror("can't open %s:%d", cfg_input, errno);
+	}
+
+	memset(&winfo, 0, sizeof(winfo));
+	fd = sock_connect_mptcp(cfg_host, cfg_port, cfg_sock_proto, &peer, fd_in, &winfo);
+	if (fd < 0)
+		return 2;
+
+again:
+	check_getpeername_connect(fd);
+
+	SOCK_TEST_TCPULP(fd, cfg_sock_proto);
+
+	if (cfg_rcvbuf)
+		set_rcvbuf(fd, cfg_rcvbuf);
+	if (cfg_sndbuf)
+		set_sndbuf(fd, cfg_sndbuf);
+	if (cfg_cmsg_types.cmsg_enabled)
+		apply_cmsg_types(fd, &cfg_cmsg_types);
+
+	if (cfg_input && !cfg_sockopt_types.mptfo) {
+		fd_in = open(cfg_input, O_RDONLY);
+		if (fd_in < 0)
+			xerror("can't open %s:%d", cfg_input, errno);
+	}
+
+	ret = copyfd_io(fd_in, fd, 1, 0, &winfo);
+	if (ret)
+		goto out;
+
+	if (cfg_truncate > 0) {
+		shutdown(fd, SHUT_WR);
+	} else if (--cfg_repeat > 0) {
+		xdisconnect(fd);
+
+		/* the socket could be unblocking at this point, we need the
+		 * connect to be blocking
+		 */
+		set_nonblock(fd, false);
+		if (connect(fd, peer->ai_addr, peer->ai_addrlen))
+			xerror("can't reconnect: %d", errno);
+		if (cfg_input)
+			close(fd_in);
+		memset(&winfo, 0, sizeof(winfo));
+		goto again;
+	} else {
+		close(fd);
+	}
+
+out:
+	if (cfg_input)
+		close(fd_in);
+	return ret;
+}
+
+int parse_proto(const char *proto)
+{
+	if (!strcasecmp(proto, "MPTCP"))
+		return IPPROTO_MPTCP;
+	if (!strcasecmp(proto, "TCP"))
+		return IPPROTO_TCP;
+
+	fprintf(stderr, "Unknown protocol: %s\n.", proto);
+	die_usage();
+
+	/* silence compiler warning */
+	return 0;
+}
+
+int parse_mode(const char *mode)
+{
+	if (!strcasecmp(mode, "poll"))
+		return CFG_MODE_POLL;
+	if (!strcasecmp(mode, "mmap"))
+		return CFG_MODE_MMAP;
+	if (!strcasecmp(mode, "sendfile"))
+		return CFG_MODE_SENDFILE;
+
+	fprintf(stderr, "Unknown test mode: %s\n", mode);
+	fprintf(stderr, "Supported modes are:\n");
+	fprintf(stderr, "\t\t\"poll\" - interleaved read/write using poll()\n");
+	fprintf(stderr, "\t\t\"mmap\" - send entire input file (mmap+write), then read response (-l will read input first)\n");
+	fprintf(stderr, "\t\t\"sendfile\" - send entire input file (sendfile), then read response (-l will read input first)\n");
+
+	die_usage();
+
+	/* silence compiler warning */
+	return 0;
+}
+
+int parse_peek(const char *mode)
+{
+	if (!strcasecmp(mode, "saveWithPeek"))
+		return CFG_WITH_PEEK;
+	if (!strcasecmp(mode, "saveAfterPeek"))
+		return CFG_AFTER_PEEK;
+
+	fprintf(stderr, "Unknown: %s\n", mode);
+	fprintf(stderr, "Supported MSG_PEEK mode are:\n");
+	fprintf(stderr,
+		"\t\t\"saveWithPeek\" - recv data with flags 'MSG_PEEK' and save the peek data into file\n");
+	fprintf(stderr,
+		"\t\t\"saveAfterPeek\" - read and save data into file after recv with flags 'MSG_PEEK'\n");
+
+	die_usage();
+
+	/* silence compiler warning */
+	return 0;
+}
+
+static int parse_int(const char *size)
+{
+	unsigned long s;
+
+	errno = 0;
+
+	s = strtoul(size, NULL, 0);
+
+	if (errno) {
+		fprintf(stderr, "Invalid sndbuf size %s (%s)\n",
+			size, strerror(errno));
+		die_usage();
+	}
+
+	if (s > INT_MAX) {
+		fprintf(stderr, "Invalid sndbuf size %s (%s)\n",
+			size, strerror(ERANGE));
+		die_usage();
+	}
+
+	return (int)s;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "6c:f:hi:I:jlm:M:o:p:P:r:R:s:S:t:T:w:")) != -1) {
+		switch (c) {
+		case 'f':
+			cfg_truncate = atoi(optarg);
+
+			/* when receiving a fastclose, ignore PIPE signals and
+			 * all the I/O errors later in the code
+			 */
+			if (cfg_truncate < 0) {
+				cfg_rcv_trunc = true;
+				signal(SIGPIPE, SIG_IGN);
+			}
+			break;
+		case 'j':
+			cfg_join = true;
+			cfg_mode = CFG_MODE_POLL;
+			break;
+		case 'r':
+			cfg_remove = true;
+			cfg_mode = CFG_MODE_POLL;
+			cfg_wait = 400000;
+			cfg_do_w = atoi(optarg);
+			if (cfg_do_w <= 0)
+				cfg_do_w = 50;
+			break;
+		case 'i':
+			cfg_input = optarg;
+			break;
+		case 'I':
+			cfg_repeat = atoi(optarg);
+			break;
+		case 'l':
+			listen_mode = true;
+			break;
+		case 'p':
+			cfg_port = optarg;
+			break;
+		case 's':
+			cfg_sock_proto = parse_proto(optarg);
+			break;
+		case 'h':
+			die_usage();
+			break;
+		case '6':
+			pf = AF_INET6;
+			break;
+		case 't':
+			poll_timeout = atoi(optarg) * 1000;
+			if (poll_timeout <= 0)
+				poll_timeout = -1;
+			break;
+		case 'T':
+			cfg_time = atoi(optarg);
+			break;
+		case 'm':
+			cfg_mode = parse_mode(optarg);
+			break;
+		case 'S':
+			cfg_sndbuf = parse_int(optarg);
+			break;
+		case 'R':
+			cfg_rcvbuf = parse_int(optarg);
+			break;
+		case 'w':
+			cfg_wait = atoi(optarg)*1000000;
+			break;
+		case 'M':
+			cfg_mark = strtol(optarg, NULL, 0);
+			break;
+		case 'P':
+			cfg_peek = parse_peek(optarg);
+			break;
+		case 'c':
+			parse_cmsg_types(optarg);
+			break;
+		case 'o':
+			parse_setsock_options(optarg);
+			break;
+		}
+	}
+
+	if (optind + 1 != argc)
+		die_usage();
+	cfg_host = argv[optind];
+
+	if (strchr(cfg_host, ':'))
+		pf = AF_INET6;
+}
+
+int main(int argc, char *argv[])
+{
+	init_rng();
+
+	signal(SIGUSR1, handle_signal);
+	parse_opts(argc, argv);
+
+	if (listen_mode) {
+		int fd = sock_listen_mptcp(cfg_host, cfg_port);
+
+		if (fd < 0)
+			return 1;
+
+		if (cfg_rcvbuf)
+			set_rcvbuf(fd, cfg_rcvbuf);
+		if (cfg_sndbuf)
+			set_sndbuf(fd, cfg_sndbuf);
+		if (cfg_mark)
+			set_mark(fd, cfg_mark);
+		if (cfg_cmsg_types.cmsg_enabled)
+			apply_cmsg_types(fd, &cfg_cmsg_types);
+
+		return main_loop_s(fd);
+	}
+
+	return main_loop();
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.sh b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
new file mode 100755
index 000000000000..a6447f7a31fe
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.sh
@@ -0,0 +1,964 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it, especially because there were too many before having
+# address all other issues detected by shellcheck.
+#shellcheck disable=SC2086
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+time_start=$(date +%s)
+
+optstring="S:R:d:e:l:r:h4cm:f:tC"
+ret=0
+final_ret=0
+sin=""
+sout=""
+cin_disconnect=""
+cin=""
+cout=""
+capture=false
+timeout_poll=30
+timeout_test=$((timeout_poll * 2 + 1))
+ipv6=true
+ethtool_random_on=true
+tc_delay="$((RANDOM%50))"
+tc_loss=$((RANDOM%101))
+testmode=""
+sndbuf=0
+rcvbuf=0
+options_log=true
+do_tcp=0
+checksum=false
+filesize=0
+connect_per_transfer=1
+port=$((10000 - 1))
+
+if [ $tc_loss -eq 100 ];then
+	tc_loss=1%
+elif [ $tc_loss -ge 10 ]; then
+	tc_loss=0.$tc_loss%
+elif [ $tc_loss -ge 1 ]; then
+	tc_loss=0.0$tc_loss%
+else
+	tc_loss=""
+fi
+
+usage() {
+	echo "Usage: $0 [ -a ]"
+	echo -e "\t-d: tc/netem delay in milliseconds, e.g. \"-d 10\" (default random)"
+	echo -e "\t-l: tc/netem loss percentage, e.g. \"-l 0.02\" (default random)"
+	echo -e "\t-r: tc/netem reorder mode, e.g. \"-r 25% 50% gap 5\", use "-r 0" to disable reordering (default random)"
+	echo -e "\t-e: ethtool features to disable, e.g.: \"-e tso -e gso\" (default: randomly disable any of tso/gso/gro)"
+	echo -e "\t-4: IPv4 only: disable IPv6 tests (default: test both IPv4 and IPv6)"
+	echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
+	echo -e "\t-f: size of file to transfer in bytes (default random)"
+	echo -e "\t-S: set sndbuf value (default: use kernel default)"
+	echo -e "\t-R: set rcvbuf value (default: use kernel default)"
+	echo -e "\t-m: test mode (poll, sendfile; default: poll)"
+	echo -e "\t-t: also run tests with TCP (use twice to non-fallback tcp)"
+	echo -e "\t-C: enable the MPTCP data checksum"
+}
+
+while getopts "$optstring" option;do
+	case "$option" in
+	"h")
+		usage $0
+		exit ${KSFT_PASS}
+		;;
+	"d")
+		if [ $OPTARG -ge 0 ];then
+			tc_delay="$OPTARG"
+		else
+			echo "-d requires numeric argument, got \"$OPTARG\"" 1>&2
+			exit ${KSFT_FAIL}
+		fi
+		;;
+	"e")
+		ethtool_args="$ethtool_args $OPTARG off"
+		ethtool_random_on=false
+		;;
+	"l")
+		tc_loss="$OPTARG"
+		;;
+	"r")
+		tc_reorder="$OPTARG"
+		;;
+	"4")
+		ipv6=false
+		;;
+	"c")
+		capture=true
+		;;
+	"S")
+		if [ $OPTARG -ge 0 ];then
+			sndbuf="$OPTARG"
+		else
+			echo "-S requires numeric argument, got \"$OPTARG\"" 1>&2
+			exit ${KSFT_FAIL}
+		fi
+		;;
+	"R")
+		if [ $OPTARG -ge 0 ];then
+			rcvbuf="$OPTARG"
+		else
+			echo "-R requires numeric argument, got \"$OPTARG\"" 1>&2
+			exit ${KSFT_FAIL}
+		fi
+		;;
+	"m")
+		testmode="$OPTARG"
+		;;
+	"f")
+		filesize="$OPTARG"
+		;;
+	"t")
+		do_tcp=$((do_tcp+1))
+		;;
+	"C")
+		checksum=true
+		;;
+	"?")
+		usage $0
+		exit ${KSFT_FAIL}
+		;;
+	esac
+done
+
+ns1=""
+ns2=""
+ns3=""
+ns4=""
+
+TEST_GROUP=""
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	rm -f "$cin_disconnect"
+	rm -f "$cin" "$cout"
+	rm -f "$sin" "$sout"
+	rm -f "$capout"
+
+	mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns3}" "${ns4}"
+}
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_kallsyms
+mptcp_lib_check_tools ip tc
+
+sin=$(mktemp)
+sout=$(mktemp)
+cin=$(mktemp)
+cout=$(mktemp)
+capout=$(mktemp)
+cin_disconnect="$cin".disconnect
+trap cleanup EXIT
+
+mptcp_lib_ns_init ns1 ns2 ns3 ns4
+
+#  "$ns1"              ns2                    ns3                     ns4
+# ns1eth2    ns2eth1   ns2eth3      ns3eth2   ns3eth4       ns4eth3
+#                           - drop 1% ->            reorder 25%
+#                           <- TSO off -
+
+ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth2 netns "$ns3"
+ip link add ns3eth4 netns "$ns3" type veth peer name ns4eth3 netns "$ns4"
+
+ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
+ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
+
+ip -net "$ns1" link set ns1eth2 up
+ip -net "$ns1" route add default via 10.0.1.2
+ip -net "$ns1" route add default via dead:beef:1::2
+
+ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
+ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
+ip -net "$ns2" link set ns2eth1 up
+
+ip -net "$ns2" addr add 10.0.2.1/24 dev ns2eth3
+ip -net "$ns2" addr add dead:beef:2::1/64 dev ns2eth3 nodad
+ip -net "$ns2" link set ns2eth3 up
+ip -net "$ns2" route add default via 10.0.2.2
+ip -net "$ns2" route add default via dead:beef:2::2
+ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
+ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
+
+ip -net "$ns3" addr add 10.0.2.2/24 dev ns3eth2
+ip -net "$ns3" addr add dead:beef:2::2/64 dev ns3eth2 nodad
+ip -net "$ns3" link set ns3eth2 up
+
+ip -net "$ns3" addr add 10.0.3.2/24 dev ns3eth4
+ip -net "$ns3" addr add dead:beef:3::2/64 dev ns3eth4 nodad
+ip -net "$ns3" link set ns3eth4 up
+ip -net "$ns3" route add default via 10.0.2.1
+ip -net "$ns3" route add default via dead:beef:2::1
+ip netns exec "$ns3" sysctl -q net.ipv4.ip_forward=1
+ip netns exec "$ns3" sysctl -q net.ipv6.conf.all.forwarding=1
+
+ip -net "$ns4" addr add 10.0.3.1/24 dev ns4eth3
+ip -net "$ns4" addr add dead:beef:3::1/64 dev ns4eth3 nodad
+ip -net "$ns4" link set ns4eth3 up
+ip -net "$ns4" route add default via 10.0.3.2
+ip -net "$ns4" route add default via dead:beef:3::2
+
+if $checksum; then
+	for i in "$ns1" "$ns2" "$ns3" "$ns4";do
+		ip netns exec $i sysctl -q net.mptcp.checksum_enabled=1
+	done
+fi
+
+if $capture; then
+	rndh="${ns1:4}"
+	mptcp_lib_pr_info "Packet capture files will have this prefix: ${rndh}-"
+fi
+
+set_ethtool_flags() {
+	local ns="$1"
+	local dev="$2"
+	local flags="$3"
+
+	if ip netns exec $ns ethtool -K $dev $flags 2>/dev/null; then
+		mptcp_lib_pr_info "set $ns dev $dev: ethtool -K $flags"
+	fi
+}
+
+set_random_ethtool_flags() {
+	local flags=""
+	local r=$RANDOM
+
+	local pick1=$((r & 1))
+	local pick2=$((r & 2))
+	local pick3=$((r & 4))
+
+	[ $pick1 -ne 0 ] && flags="tso off"
+	[ $pick2 -ne 0 ] && flags="$flags gso off"
+	[ $pick3 -ne 0 ] && flags="$flags gro off"
+
+	[ -z "$flags" ] && return
+
+	set_ethtool_flags "$1" "$2" "$flags"
+}
+
+if $ethtool_random_on;then
+	set_random_ethtool_flags "$ns3" ns3eth2
+	set_random_ethtool_flags "$ns4" ns4eth3
+else
+	set_ethtool_flags "$ns3" ns3eth2 "$ethtool_args"
+	set_ethtool_flags "$ns4" ns4eth3 "$ethtool_args"
+fi
+
+print_larger_title() {
+	# here we don't have the time, a bit longer for the alignment
+	MPTCP_LIB_TEST_FORMAT="%02u %-69s" \
+		mptcp_lib_print_title "${@}"
+}
+
+check_mptcp_disabled()
+{
+	local disabled_ns
+	mptcp_lib_ns_init disabled_ns
+
+	print_larger_title "New MPTCP socket can be blocked via sysctl"
+
+	# mainly to cover more code
+	if ! ip netns exec ${disabled_ns} sysctl net.mptcp >/dev/null; then
+		mptcp_lib_pr_fail "not able to list net.mptcp sysctl knobs"
+		mptcp_lib_result_fail "not able to list net.mptcp sysctl knobs"
+		ret=${KSFT_FAIL}
+		return 1
+	fi
+
+	# net.mptcp.enabled should be enabled by default
+	if [ "$(ip netns exec ${disabled_ns} sysctl net.mptcp.enabled | awk '{ print $3 }')" -ne 1 ]; then
+		mptcp_lib_pr_fail "net.mptcp.enabled sysctl is not 1 by default"
+		mptcp_lib_result_fail "net.mptcp.enabled sysctl is not 1 by default"
+		ret=${KSFT_FAIL}
+		return 1
+	fi
+	ip netns exec ${disabled_ns} sysctl -q net.mptcp.enabled=0
+
+	local err=0
+	LC_ALL=C ip netns exec ${disabled_ns} ./mptcp_connect -p 10000 -s MPTCP 127.0.0.1 < "$cin" 2>&1 | \
+		grep -q "^socket: Protocol not available$" && err=1
+	mptcp_lib_ns_exit "${disabled_ns}"
+
+	if [ ${err} -eq 0 ]; then
+		mptcp_lib_pr_fail "New MPTCP socket cannot be blocked via sysctl"
+		mptcp_lib_result_fail "New MPTCP socket cannot be blocked via sysctl"
+		ret=${KSFT_FAIL}
+		return 1
+	fi
+
+	mptcp_lib_pr_ok
+	mptcp_lib_result_pass "New MPTCP socket can be blocked via sysctl"
+	return 0
+}
+
+do_ping()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+	local ping_args="-q -c 1"
+	local rc=0
+
+	if mptcp_lib_is_v6 "${connect_addr}"; then
+		$ipv6 || return 0
+		ping_args="${ping_args} -6"
+	fi
+
+	ip netns exec ${connector_ns} ping ${ping_args} $connect_addr >/dev/null || rc=1
+
+	if [ $rc -ne 0 ] ; then
+		mptcp_lib_pr_fail "$listener_ns -> $connect_addr connectivity"
+		ret=${KSFT_FAIL}
+
+		return 1
+	fi
+
+	return 0
+}
+
+do_transfer()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local cl_proto="$3"
+	local srv_proto="$4"
+	local connect_addr="$5"
+	local local_addr="$6"
+	local extra_args="$7"
+
+	port=$((port + 1))
+
+	if [ "$rcvbuf" -gt 0 ]; then
+		extra_args+=" -R $rcvbuf"
+	fi
+
+	if [ "$sndbuf" -gt 0 ]; then
+		extra_args+=" -S $sndbuf"
+	fi
+
+	if [ -n "$testmode" ]; then
+		extra_args+=" -m $testmode"
+	fi
+
+	if [ -n "$extra_args" ] && $options_log; then
+		mptcp_lib_pr_info "extra options: $extra_args"
+	fi
+	options_log=false
+
+	:> "$cout"
+	:> "$sout"
+	:> "$capout"
+
+	local addr_port
+	addr_port=$(printf "%s:%d" ${connect_addr} ${port})
+	local pretty_title
+	pretty_title="$(printf "%.3s %-5s -> %.3s (%-20s) %-5s" ${connector_ns} ${cl_proto} ${listener_ns} ${addr_port} ${srv_proto})"
+	mptcp_lib_print_title "${pretty_title}"
+
+	local tap_title="${connector_ns:0:3} ${cl_proto} -> ${listener_ns:0:3} (${addr_port}) ${srv_proto}"
+
+	if $capture; then
+		local capuser
+		if [ -z $SUDO_USER ] ; then
+			capuser=""
+		else
+			capuser="-Z $SUDO_USER"
+		fi
+
+		local capfile="${rndh}-${connector_ns:0:3}-${listener_ns:0:3}-${cl_proto}-${srv_proto}-${connect_addr}-${port}"
+		local capopt="-i any -s 65535 -B 32768 ${capuser}"
+
+		ip netns exec ${listener_ns} tcpdump ${capopt} \
+			-w "${capfile}-listener.pcap" >> "${capout}" 2>&1 &
+		local cappid_listener=$!
+
+		if [ ${listener_ns} != ${connector_ns} ]; then
+			ip netns exec ${connector_ns} tcpdump ${capopt} \
+				-w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
+			local cappid_connector=$!
+		fi
+
+		sleep 1
+	fi
+
+	mptcp_lib_nstat_init "${listener_ns}"
+	if [ ${listener_ns} != ${connector_ns} ]; then
+		mptcp_lib_nstat_init "${connector_ns}"
+	fi
+
+	ip netns exec ${listener_ns} \
+		./mptcp_connect -t ${timeout_poll} -l -p $port -s ${srv_proto} \
+			$extra_args $local_addr < "$sin" > "$sout" &
+	local spid=$!
+
+	mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
+
+	local start
+	start=$(date +%s%3N)
+	ip netns exec ${connector_ns} \
+		./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+			$extra_args $connect_addr < "$cin" > "$cout" &
+	local cpid=$!
+
+	mptcp_lib_wait_timeout "${timeout_test}" "${listener_ns}" \
+		"${connector_ns}" "${port}" "${cpid}" "${spid}" &
+	local timeout_pid=$!
+
+	wait $cpid
+	local retc=$?
+	wait $spid
+	local rets=$?
+
+	if kill -0 $timeout_pid; then
+		# Finished before the timeout: kill the background job
+		mptcp_lib_kill_group_wait $timeout_pid
+		timeout_pid=0
+	fi
+
+	local stop
+	stop=$(date +%s%3N)
+
+	if $capture; then
+		sleep 1
+		kill ${cappid_listener}
+		if [ ${listener_ns} != ${connector_ns} ]; then
+			kill ${cappid_connector}
+		fi
+	fi
+
+	mptcp_lib_nstat_get "${listener_ns}"
+	if [ ${listener_ns} != ${connector_ns} ]; then
+		mptcp_lib_nstat_get "${connector_ns}"
+	fi
+
+	local duration
+	duration=$((stop-start))
+	printf "(duration %05sms) " "${duration}"
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ] || [ ${timeout_pid} -ne 0 ]; then
+		mptcp_lib_pr_fail "client exit code $retc, server $rets"
+		mptcp_lib_pr_err_stats "${listener_ns}" "${connector_ns}" "${port}"
+
+		echo
+		cat "$capout"
+		mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
+		return 1
+	fi
+
+	mptcp_lib_check_transfer $sin $cout "file received by client"
+	retc=$?
+	mptcp_lib_check_transfer $cin $sout "file received by server"
+	rets=$?
+
+	local extra=""
+	local stat_synrx
+	local stat_ackrx
+	local stat_cookietx
+	local stat_cookierx
+	local stat_ooo
+	local stat_tcpfb
+	stat_synrx=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableSYNRX")
+	stat_ackrx=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableACKRX")
+	stat_cookietx=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesSent")
+	stat_cookierx=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtSyncookiesRecv")
+	stat_ooo=$(mptcp_lib_get_counter "${listener_ns}" "TcpExtTCPOFOQueue")
+	stat_tcpfb=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtMPCapableFallbackACK")
+
+	expect_synrx=0
+	expect_ackrx=0
+
+	cookies=$(ip netns exec ${listener_ns} sysctl net.ipv4.tcp_syncookies)
+	cookies=${cookies##*=}
+
+	if [ ${cl_proto} = "MPTCP" ] && [ ${srv_proto} = "MPTCP" ]; then
+		expect_synrx=${connect_per_transfer}
+		expect_ackrx=${connect_per_transfer}
+	fi
+
+	if [ ${stat_synrx} -lt ${expect_synrx} ]; then
+		mptcp_lib_pr_fail "lower MPC SYN rx (${stat_synrx})" \
+				  "than expected (${expect_synrx})"
+		retc=1
+	fi
+	if [ ${stat_ackrx} -lt ${expect_ackrx} ]; then
+		if [ ${stat_ooo} -eq 0 ]; then
+			mptcp_lib_pr_fail "lower MPC ACK rx (${stat_ackrx})" \
+					  "than expected (${expect_ackrx})"
+			rets=1
+		else
+			extra+=" [ Note ] fallback due to TCP OoO"
+		fi
+	fi
+
+	if $checksum; then
+		local csum_err_s
+		local csum_err_c
+		csum_err_s=$(mptcp_lib_get_counter "${listener_ns}" "MPTcpExtDataCsumErr")
+		csum_err_c=$(mptcp_lib_get_counter "${connector_ns}" "MPTcpExtDataCsumErr")
+
+		if [ $csum_err_s -gt 0 ]; then
+			mptcp_lib_pr_fail "server got ${csum_err_s} data checksum error[s]"
+			rets=1
+		fi
+
+		if [ $csum_err_c -gt 0 ]; then
+			mptcp_lib_pr_fail "client got ${csum_err_c} data checksum error[s]"
+			retc=1
+		fi
+	fi
+
+	if [ ${stat_ooo} -eq 0 ] && [ ${stat_tcpfb} -gt 0 ]; then
+		mptcp_lib_pr_fail "unexpected fallback to TCP"
+		rets=1
+	fi
+
+	if [ $cookies -eq 2 ];then
+		if [ $stat_cookietx -eq 0 ] ;then
+			extra+=" WARN: CookieSent: did not advance"
+		fi
+		if [ $stat_cookierx -eq 0 ] ;then
+			extra+=" WARN: CookieRecv: did not advance"
+		fi
+	else
+		if [ $stat_cookietx -gt 0 ] ;then
+			extra+=" WARN: CookieSent: changed"
+		fi
+		if [ $stat_cookierx -gt 0 ] ;then
+			extra+=" WARN: CookieRecv: changed"
+		fi
+	fi
+
+	if [ ${stat_synrx} -gt ${expect_synrx} ]; then
+		extra+=" WARN: SYNRX: expect ${expect_synrx},"
+		extra+=" got ${stat_synrx} (probably retransmissions)"
+	fi
+	if [ ${stat_ackrx} -gt ${expect_ackrx} ]; then
+		extra+=" WARN: ACKRX: expect ${expect_ackrx},"
+		extra+=" got ${stat_ackrx} (probably retransmissions)"
+	fi
+
+	if [ $retc -eq 0 ] && [ $rets -eq 0 ]; then
+		mptcp_lib_pr_ok "${extra:1}"
+		mptcp_lib_result_pass "${TEST_GROUP}: ${tap_title}"
+	else
+		if [ -n "${extra}" ]; then
+			mptcp_lib_print_warn "${extra:1}"
+		fi
+		mptcp_lib_result_fail "${TEST_GROUP}: ${tap_title}"
+	fi
+
+	cat "$capout"
+	[ $retc -eq 0 ] && [ $rets -eq 0 ]
+}
+
+make_file()
+{
+	local name=$1
+	local who=$2
+	local SIZE=$filesize
+	local ksize
+	local rem
+
+	if [ $SIZE -eq 0 ]; then
+		local MAXSIZE=$((1024 * 1024 * 8))
+		local MINSIZE=$((1024 * 256))
+
+		SIZE=$(((RANDOM * RANDOM + MINSIZE) % MAXSIZE))
+	fi
+
+	ksize=$((SIZE / 1024))
+	rem=$((SIZE - (ksize * 1024)))
+
+	mptcp_lib_make_file $name 1024 $ksize
+	dd if=/dev/urandom conv=notrunc of="$name" oflag=append bs=1 count=$rem 2> /dev/null
+
+	echo "Created $name (size $(stat -c "%s" "$name") B) containing data sent by $who"
+}
+
+run_tests_lo()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+	local loopback="$4"
+	local extra_args="$5"
+	local lret=0
+
+	# skip if test programs are running inside same netns for subsequent runs.
+	if [ $loopback -eq 0 ] && [ ${listener_ns} = ${connector_ns} ]; then
+		return 0
+	fi
+
+	# skip if we don't want v6
+	if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
+		return 0
+	fi
+
+	local local_addr
+	if mptcp_lib_is_v6 "${connect_addr}"; then
+		local_addr="::"
+	else
+		local_addr="0.0.0.0"
+	fi
+
+	do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
+		    ${connect_addr} ${local_addr} "${extra_args}"
+	lret=$?
+	if [ $lret -ne 0 ]; then
+		ret=$lret
+		return 1
+	fi
+
+	if [ $do_tcp -eq 0 ]; then
+		# don't bother testing fallback tcp except for loopback case.
+		if [ ${listener_ns} != ${connector_ns} ]; then
+			return 0
+		fi
+	fi
+
+	do_transfer ${listener_ns} ${connector_ns} MPTCP TCP \
+		    ${connect_addr} ${local_addr} "${extra_args}"
+	lret=$?
+	if [ $lret -ne 0 ]; then
+		ret=$lret
+		return 1
+	fi
+
+	do_transfer ${listener_ns} ${connector_ns} TCP MPTCP \
+		    ${connect_addr} ${local_addr} "${extra_args}"
+	lret=$?
+	if [ $lret -ne 0 ]; then
+		ret=$lret
+		return 1
+	fi
+
+	if [ $do_tcp -gt 1 ] ;then
+		do_transfer ${listener_ns} ${connector_ns} TCP TCP \
+			    ${connect_addr} ${local_addr} "${extra_args}"
+		lret=$?
+		if [ $lret -ne 0 ]; then
+			ret=$lret
+			return 1
+		fi
+	fi
+
+	return 0
+}
+
+run_tests()
+{
+	run_tests_lo $1 $2 $3 0
+}
+
+run_test_transparent()
+{
+	local connect_addr="$1"
+	local msg="$2"
+
+	local connector_ns="$ns1"
+	local listener_ns="$ns2"
+	local lret=0
+	local r6flag=""
+
+	TEST_GROUP="${msg}"
+
+	# skip if we don't want v6
+	if ! $ipv6 && mptcp_lib_is_v6 "${connect_addr}"; then
+		return 0
+	fi
+
+	# IP(V6)_TRANSPARENT has been added after TOS support which came with
+	# the required infrastructure in MPTCP sockopt code. To support TOS, the
+	# following function has been exported (T). Not great but better than
+	# checking for a specific kernel version.
+	if ! mptcp_lib_kallsyms_has "T __ip_sock_set_tos$"; then
+		mptcp_lib_pr_skip "${msg} not supported by the kernel"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	if ! ip netns exec "$listener_ns" nft -f /dev/stdin <<"EOF"
+flush ruleset
+table inet mangle {
+	chain divert {
+		type filter hook prerouting priority -150;
+
+		meta l4proto tcp socket transparent 1 meta mark set 1 accept
+		tcp dport 20000 tproxy to :20000 meta mark set 1 accept
+	}
+}
+EOF
+	then
+		mptcp_lib_pr_skip "$msg, could not load nft ruleset"
+		mptcp_lib_fail_if_expected_feature "nft rules"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	local local_addr
+	if mptcp_lib_is_v6 "${connect_addr}"; then
+		local_addr="::"
+		r6flag="-6"
+	else
+		local_addr="0.0.0.0"
+	fi
+
+	if ! ip -net "$listener_ns" $r6flag rule add fwmark 1 lookup 100; then
+		ip netns exec "$listener_ns" nft flush ruleset
+		mptcp_lib_pr_skip "$msg, ip $r6flag rule failed"
+		mptcp_lib_fail_if_expected_feature "ip rule"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	if ! ip -net "$listener_ns" route add local $local_addr/0 dev lo table 100; then
+		ip netns exec "$listener_ns" nft flush ruleset
+		ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
+		mptcp_lib_pr_skip "$msg, ip route add local $local_addr failed"
+		mptcp_lib_fail_if_expected_feature "ip route"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	mptcp_lib_pr_info "test $msg"
+
+	port=$((20000 - 1))
+	local extra_args="-o TRANSPARENT"
+	do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP \
+		    ${connect_addr} ${local_addr} "${extra_args}"
+	lret=$?
+
+	ip netns exec "$listener_ns" nft flush ruleset
+	ip -net "$listener_ns" $r6flag rule del fwmark 1 lookup 100
+	ip -net "$listener_ns" route del local $local_addr/0 dev lo table 100
+
+	if [ $lret -ne 0 ]; then
+		mptcp_lib_pr_fail "$msg, mptcp connection error"
+		ret=$lret
+		return 1
+	fi
+
+	mptcp_lib_pr_info "$msg pass"
+	return 0
+}
+
+run_tests_peekmode()
+{
+	local peekmode="$1"
+
+	TEST_GROUP="peek mode: ${peekmode}"
+	mptcp_lib_pr_info "with peek mode: ${peekmode}"
+	run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-P ${peekmode}"
+	run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-P ${peekmode}"
+}
+
+run_tests_mptfo()
+{
+	TEST_GROUP="MPTFO"
+
+	if ! mptcp_lib_kallsyms_has "mptcp_fastopen_"; then
+		mptcp_lib_pr_skip "TFO not supported by the kernel"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	mptcp_lib_pr_info "with MPTFO start"
+	ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=2
+	ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=1
+
+	run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
+	run_tests_lo "$ns1" "$ns2" 10.0.1.1 0 "-o MPTFO"
+
+	run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
+	run_tests_lo "$ns1" "$ns2" dead:beef:1::1 0 "-o MPTFO"
+
+	ip netns exec "$ns1" sysctl -q net.ipv4.tcp_fastopen=0
+	ip netns exec "$ns2" sysctl -q net.ipv4.tcp_fastopen=0
+	mptcp_lib_pr_info "with MPTFO end"
+}
+
+run_tests_disconnect()
+{
+	local old_cin=$cin
+	local old_sin=$sin
+
+	TEST_GROUP="full disconnect"
+
+	if ! mptcp_lib_kallsyms_has "mptcp_pm_data_reset$"; then
+		mptcp_lib_pr_skip "Full disconnect not supported"
+		mptcp_lib_result_skip "${TEST_GROUP}"
+		return
+	fi
+
+	cat $cin $cin $cin > "$cin".disconnect
+
+	# force do_transfer to cope with the multiple transmissions
+	sin="$cin.disconnect"
+	cin="$cin.disconnect"
+	cin_disconnect="$old_cin"
+	connect_per_transfer=3
+
+	mptcp_lib_pr_info "disconnect"
+	run_tests_lo "$ns1" "$ns1" 10.0.1.1 1 "-I 3 -i $old_cin"
+	run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1 "-I 3 -i $old_cin"
+
+	# restore previous status
+	sin=$old_sin
+	cin=$old_cin
+	cin_disconnect="$cin".disconnect
+	connect_per_transfer=1
+}
+
+display_time()
+{
+	time_end=$(date +%s)
+	time_run=$((time_end-time_start))
+
+	echo "Time: ${time_run} seconds"
+}
+
+log_if_error()
+{
+	local msg="$1"
+
+	if [ ${ret} -ne 0 ]; then
+		mptcp_lib_pr_fail "${msg}"
+
+		final_ret=${ret}
+		ret=${KSFT_PASS}
+
+		return ${final_ret}
+	fi
+}
+
+stop_if_error()
+{
+	if ! log_if_error "${@}"; then
+		display_time
+		mptcp_lib_result_print_all_tap
+		exit ${final_ret}
+	fi
+}
+
+make_file "$cin" "client"
+make_file "$sin" "server"
+
+mptcp_lib_subtests_last_ts_reset
+
+check_mptcp_disabled
+
+stop_if_error "The kernel configuration is not valid for MPTCP"
+
+print_larger_title "Validating network environment with pings"
+for sender in "$ns1" "$ns2" "$ns3" "$ns4";do
+	do_ping "$ns1" $sender 10.0.1.1
+	do_ping "$ns1" $sender dead:beef:1::1
+
+	do_ping "$ns2" $sender 10.0.1.2
+	do_ping "$ns2" $sender dead:beef:1::2
+	do_ping "$ns2" $sender 10.0.2.1
+	do_ping "$ns2" $sender dead:beef:2::1
+
+	do_ping "$ns3" $sender 10.0.2.2
+	do_ping "$ns3" $sender dead:beef:2::2
+	do_ping "$ns3" $sender 10.0.3.2
+	do_ping "$ns3" $sender dead:beef:3::2
+
+	do_ping "$ns4" $sender 10.0.3.1
+	do_ping "$ns4" $sender dead:beef:3::1
+done
+
+mptcp_lib_result_code "${ret}" "ping tests"
+
+stop_if_error "Could not even run ping tests"
+mptcp_lib_pr_ok
+
+[ -n "$tc_loss" ] && tc -net "$ns2" qdisc add dev ns2eth3 root netem loss random $tc_loss delay ${tc_delay}ms
+tc_info="loss of $tc_loss "
+test "$tc_delay" -gt 0 && tc_info+="delay $tc_delay ms "
+
+reorder_delay=$((tc_delay / 4))
+
+if [ -z "${tc_reorder}" ]; then
+	reorder1=$((RANDOM%10))
+	reorder1=$((100 - reorder1))
+	reorder2=$((RANDOM%100))
+
+	if [ $reorder_delay -gt 0 ] && [ $reorder1 -lt 100 ] && [ $reorder2 -gt 0 ]; then
+		tc_reorder="reorder ${reorder1}% ${reorder2}%"
+		tc_info+="$tc_reorder with delay ${reorder_delay}ms "
+	fi
+elif [ "$tc_reorder" = "0" ];then
+	tc_reorder=""
+elif [ "$reorder_delay" -gt 0 ];then
+	# reordering requires some delay
+	tc_reorder="reorder $tc_reorder"
+	tc_info+="$tc_reorder with delay ${reorder_delay}ms "
+fi
+
+mptcp_lib_pr_info "Using ${tc_info}on ns3eth4"
+
+tc -net "$ns3" qdisc add dev ns3eth4 root netem delay ${reorder_delay}ms $tc_reorder
+
+TEST_GROUP="loopback v4"
+run_tests_lo "$ns1" "$ns1" 10.0.1.1 1
+stop_if_error "Could not even run loopback test"
+
+TEST_GROUP="loopback v6"
+run_tests_lo "$ns1" "$ns1" dead:beef:1::1 1
+stop_if_error "Could not even run loopback v6 test"
+
+TEST_GROUP="multihosts"
+for sender in $ns1 $ns2 $ns3 $ns4;do
+	# ns1<->ns2 is not subject to reordering/tc delays. Use it to test
+	# mptcp syncookie support.
+	if [ $sender = $ns1 ]; then
+		ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=2
+	else
+		ip netns exec "$ns2" sysctl -q net.ipv4.tcp_syncookies=1
+	fi
+
+	run_tests "$ns1" $sender 10.0.1.1
+	run_tests "$ns1" $sender dead:beef:1::1
+
+	run_tests "$ns2" $sender 10.0.1.2
+	run_tests "$ns2" $sender dead:beef:1::2
+	run_tests "$ns2" $sender 10.0.2.1
+	run_tests "$ns2" $sender dead:beef:2::1
+
+	run_tests "$ns3" $sender 10.0.2.2
+	run_tests "$ns3" $sender dead:beef:2::2
+	run_tests "$ns3" $sender 10.0.3.2
+	run_tests "$ns3" $sender dead:beef:3::2
+
+	run_tests "$ns4" $sender 10.0.3.1
+	run_tests "$ns4" $sender dead:beef:3::1
+
+	log_if_error "Tests with $sender as a sender have failed"
+done
+
+run_tests_peekmode "saveWithPeek"
+run_tests_peekmode "saveAfterPeek"
+log_if_error "Tests with peek mode have failed"
+
+# MPTFO (MultiPath TCP Fatopen tests)
+run_tests_mptfo
+log_if_error "Tests with MPTFO have failed"
+
+# connect to ns4 ip address, ns2 should intercept/proxy
+run_test_transparent 10.0.3.1 "tproxy ipv4"
+run_test_transparent dead:beef:3::1 "tproxy ipv6"
+log_if_error "Tests with tproxy have failed"
+
+run_tests_disconnect
+log_if_error "Tests of the full disconnection have failed"
+
+display_time
+mptcp_lib_result_print_all_tap
+exit ${final_ret}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect_checksum.sh b/tools/testing/selftests/net/mptcp/mptcp_connect_checksum.sh
new file mode 100755
index 000000000000..ce93ec2f107f
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect_checksum.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+MPTCP_LIB_KSFT_TEST="$(basename "${0}" .sh)" \
+	"$(dirname "${0}")/mptcp_connect.sh" -C "${@}"
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh b/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh
new file mode 100755
index 000000000000..5dd30f9394af
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect_mmap.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+MPTCP_LIB_KSFT_TEST="$(basename "${0}" .sh)" \
+	"$(dirname "${0}")/mptcp_connect.sh" -m mmap "${@}"
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh b/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh
new file mode 100755
index 000000000000..1d16fb1cc9bb
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect_sendfile.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+MPTCP_LIB_KSFT_TEST="$(basename "${0}" .sh)" \
+	"$(dirname "${0}")/mptcp_connect.sh" -m sendfile "${@}"
diff --git a/tools/testing/selftests/net/mptcp/mptcp_diag.c b/tools/testing/selftests/net/mptcp/mptcp_diag.c
new file mode 100644
index 000000000000..e084796e804d
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_diag.c
@@ -0,0 +1,435 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2025, Kylin Software */
+
+#include <linux/sock_diag.h>
+#include <linux/rtnetlink.h>
+#include <linux/inet_diag.h>
+#include <linux/netlink.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <linux/tcp.h>
+#include <arpa/inet.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdio.h>
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+
+#define parse_rtattr_nested(tb, max, rta) \
+	(parse_rtattr_flags((tb), (max), RTA_DATA(rta), RTA_PAYLOAD(rta), \
+			    NLA_F_NESTED))
+
+struct params {
+	__u32 target_token;
+	char subflow_addrs[1024];
+};
+
+struct mptcp_info {
+	__u8	mptcpi_subflows;
+	__u8	mptcpi_add_addr_signal;
+	__u8	mptcpi_add_addr_accepted;
+	__u8	mptcpi_subflows_max;
+	__u8	mptcpi_add_addr_signal_max;
+	__u8	mptcpi_add_addr_accepted_max;
+	__u32	mptcpi_flags;
+	__u32	mptcpi_token;
+	__u64	mptcpi_write_seq;
+	__u64	mptcpi_snd_una;
+	__u64	mptcpi_rcv_nxt;
+	__u8	mptcpi_local_addr_used;
+	__u8	mptcpi_local_addr_max;
+	__u8	mptcpi_csum_enabled;
+	__u32	mptcpi_retransmits;
+	__u64	mptcpi_bytes_retrans;
+	__u64	mptcpi_bytes_sent;
+	__u64	mptcpi_bytes_received;
+	__u64	mptcpi_bytes_acked;
+	__u8	mptcpi_subflows_total;
+	__u8	reserved[3];
+	__u32	mptcpi_last_data_sent;
+	__u32	mptcpi_last_data_recv;
+	__u32	mptcpi_last_ack_recv;
+};
+
+enum {
+	MPTCP_SUBFLOW_ATTR_UNSPEC,
+	MPTCP_SUBFLOW_ATTR_TOKEN_REM,
+	MPTCP_SUBFLOW_ATTR_TOKEN_LOC,
+	MPTCP_SUBFLOW_ATTR_RELWRITE_SEQ,
+	MPTCP_SUBFLOW_ATTR_MAP_SEQ,
+	MPTCP_SUBFLOW_ATTR_MAP_SFSEQ,
+	MPTCP_SUBFLOW_ATTR_SSN_OFFSET,
+	MPTCP_SUBFLOW_ATTR_MAP_DATALEN,
+	MPTCP_SUBFLOW_ATTR_FLAGS,
+	MPTCP_SUBFLOW_ATTR_ID_REM,
+	MPTCP_SUBFLOW_ATTR_ID_LOC,
+	MPTCP_SUBFLOW_ATTR_PAD,
+
+	__MPTCP_SUBFLOW_ATTR_MAX
+};
+
+#define MPTCP_SUBFLOW_ATTR_MAX (__MPTCP_SUBFLOW_ATTR_MAX - 1)
+
+#define MPTCP_SUBFLOW_FLAG_MCAP_REM		_BITUL(0)
+#define MPTCP_SUBFLOW_FLAG_MCAP_LOC		_BITUL(1)
+#define MPTCP_SUBFLOW_FLAG_JOIN_REM		_BITUL(2)
+#define MPTCP_SUBFLOW_FLAG_JOIN_LOC		_BITUL(3)
+#define MPTCP_SUBFLOW_FLAG_BKUP_REM		_BITUL(4)
+#define MPTCP_SUBFLOW_FLAG_BKUP_LOC		_BITUL(5)
+#define MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED	_BITUL(6)
+#define MPTCP_SUBFLOW_FLAG_CONNECTED		_BITUL(7)
+#define MPTCP_SUBFLOW_FLAG_MAPVALID		_BITUL(8)
+
+#define rta_getattr(type, value)		(*(type *)RTA_DATA(value))
+
+static void die_perror(const char *msg)
+{
+	perror(msg);
+	exit(1);
+}
+
+static void die_usage(int r)
+{
+	fprintf(stderr, "Usage:\n"
+			"mptcp_diag -t <token>\n"
+			"mptcp_diag -s \"<saddr>:<sport> <daddr>:<dport>\"\n");
+	exit(r);
+}
+
+static void send_query(int fd, struct inet_diag_req_v2 *r, __u32 proto)
+{
+	struct sockaddr_nl nladdr = {
+		.nl_family = AF_NETLINK
+	};
+	struct {
+		struct nlmsghdr nlh;
+		struct inet_diag_req_v2 r;
+	} req = {
+		.nlh = {
+			.nlmsg_len = sizeof(req),
+			.nlmsg_type = SOCK_DIAG_BY_FAMILY,
+			.nlmsg_flags = NLM_F_REQUEST
+		},
+		.r = *r
+	};
+	struct rtattr rta_proto;
+	struct iovec iov[6];
+	int iovlen = 0;
+
+	iov[iovlen++] = (struct iovec) {
+		.iov_base = &req,
+		.iov_len = sizeof(req)
+	};
+
+	if (proto == IPPROTO_MPTCP) {
+		rta_proto.rta_type = INET_DIAG_REQ_PROTOCOL;
+		rta_proto.rta_len = RTA_LENGTH(sizeof(proto));
+
+		iov[iovlen++] = (struct iovec){ &rta_proto, sizeof(rta_proto)};
+		iov[iovlen++] = (struct iovec){ &proto, sizeof(proto)};
+		req.nlh.nlmsg_len += RTA_LENGTH(sizeof(proto));
+	}
+
+	struct msghdr msg = {
+		.msg_name = &nladdr,
+		.msg_namelen = sizeof(nladdr),
+		.msg_iov = iov,
+		.msg_iovlen = iovlen
+	};
+
+	for (;;) {
+		if (sendmsg(fd, &msg, 0) < 0) {
+			if (errno == EINTR)
+				continue;
+			die_perror("sendmsg");
+		}
+		break;
+	}
+}
+
+static void parse_rtattr_flags(struct rtattr *tb[], int max, struct rtattr *rta,
+			       int len, unsigned short flags)
+{
+	unsigned short type;
+
+	memset(tb, 0, sizeof(struct rtattr *) * (max + 1));
+	while (RTA_OK(rta, len)) {
+		type = rta->rta_type & ~flags;
+		if (type <= max && !tb[type])
+			tb[type] = rta;
+		rta = RTA_NEXT(rta, len);
+	}
+}
+
+static void print_info_msg(struct mptcp_info *info)
+{
+	printf("Token & Flags\n");
+	printf("token:        %x\n", info->mptcpi_token);
+	printf("flags:        %x\n", info->mptcpi_flags);
+	printf("csum_enabled: %u\n", info->mptcpi_csum_enabled);
+
+	printf("\nBasic Info\n");
+	printf("subflows:              %u\n", info->mptcpi_subflows);
+	printf("subflows_max:          %u\n", info->mptcpi_subflows_max);
+	printf("subflows_total:        %u\n", info->mptcpi_subflows_total);
+	printf("local_addr_used:       %u\n", info->mptcpi_local_addr_used);
+	printf("local_addr_max:        %u\n", info->mptcpi_local_addr_max);
+	printf("add_addr_signal:       %u\n", info->mptcpi_add_addr_signal);
+	printf("add_addr_accepted:     %u\n", info->mptcpi_add_addr_accepted);
+	printf("add_addr_signal_max:   %u\n", info->mptcpi_add_addr_signal_max);
+	printf("add_addr_accepted_max: %u\n", info->mptcpi_add_addr_accepted_max);
+
+	printf("\nTransmission Info\n");
+	printf("write_seq:        %llu\n", info->mptcpi_write_seq);
+	printf("snd_una:          %llu\n", info->mptcpi_snd_una);
+	printf("rcv_nxt:          %llu\n", info->mptcpi_rcv_nxt);
+	printf("last_data_sent:   %u\n", info->mptcpi_last_data_sent);
+	printf("last_data_recv:   %u\n", info->mptcpi_last_data_recv);
+	printf("last_ack_recv:    %u\n", info->mptcpi_last_ack_recv);
+	printf("retransmits:      %u\n", info->mptcpi_retransmits);
+	printf("retransmit bytes: %llu\n", info->mptcpi_bytes_retrans);
+	printf("bytes_sent:       %llu\n", info->mptcpi_bytes_sent);
+	printf("bytes_received:   %llu\n", info->mptcpi_bytes_received);
+	printf("bytes_acked:      %llu\n", info->mptcpi_bytes_acked);
+}
+
+/*
+ * 'print_subflow_info' is from 'mptcp_subflow_info'
+ * which is a function in 'misc/ss.c' of iproute2.
+ */
+static void print_subflow_info(struct rtattr *tb[])
+{
+	u_int32_t flags = 0;
+
+	printf("It's a mptcp subflow, the subflow info:\n");
+	if (tb[MPTCP_SUBFLOW_ATTR_FLAGS]) {
+		char caps[32 + 1] = { 0 }, *cap = &caps[0];
+
+		flags = rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_FLAGS]);
+
+		if (flags & MPTCP_SUBFLOW_FLAG_MCAP_REM)
+			*cap++ = 'M';
+		if (flags & MPTCP_SUBFLOW_FLAG_MCAP_LOC)
+			*cap++ = 'm';
+		if (flags & MPTCP_SUBFLOW_FLAG_JOIN_REM)
+			*cap++ = 'J';
+		if (flags & MPTCP_SUBFLOW_FLAG_JOIN_LOC)
+			*cap++ = 'j';
+		if (flags & MPTCP_SUBFLOW_FLAG_BKUP_REM)
+			*cap++ = 'B';
+		if (flags & MPTCP_SUBFLOW_FLAG_BKUP_LOC)
+			*cap++ = 'b';
+		if (flags & MPTCP_SUBFLOW_FLAG_FULLY_ESTABLISHED)
+			*cap++ = 'e';
+		if (flags & MPTCP_SUBFLOW_FLAG_CONNECTED)
+			*cap++ = 'c';
+		if (flags & MPTCP_SUBFLOW_FLAG_MAPVALID)
+			*cap++ = 'v';
+
+		if (flags)
+			printf(" flags:%s", caps);
+	}
+	if (tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM] &&
+	    tb[MPTCP_SUBFLOW_ATTR_TOKEN_LOC] &&
+	    tb[MPTCP_SUBFLOW_ATTR_ID_REM] &&
+	    tb[MPTCP_SUBFLOW_ATTR_ID_LOC])
+		printf(" token:%04x(id:%u)/%04x(id:%u)",
+		       rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_TOKEN_REM]),
+		       rta_getattr(__u8, tb[MPTCP_SUBFLOW_ATTR_ID_REM]),
+		       rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_TOKEN_LOC]),
+		       rta_getattr(__u8, tb[MPTCP_SUBFLOW_ATTR_ID_LOC]));
+	if (tb[MPTCP_SUBFLOW_ATTR_MAP_SEQ])
+		printf(" seq:%llu",
+		       rta_getattr(__u64, tb[MPTCP_SUBFLOW_ATTR_MAP_SEQ]));
+	if (tb[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ])
+		printf(" sfseq:%u",
+		       rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_MAP_SFSEQ]));
+	if (tb[MPTCP_SUBFLOW_ATTR_SSN_OFFSET])
+		printf(" ssnoff:%u",
+		       rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_SSN_OFFSET]));
+	if (tb[MPTCP_SUBFLOW_ATTR_MAP_DATALEN])
+		printf(" maplen:%u",
+		       rta_getattr(__u32, tb[MPTCP_SUBFLOW_ATTR_MAP_DATALEN]));
+	printf("\n");
+}
+
+static void parse_nlmsg(struct nlmsghdr *nlh, __u32 proto)
+{
+	struct inet_diag_msg *r = NLMSG_DATA(nlh);
+	struct rtattr *tb[INET_DIAG_MAX + 1];
+
+	parse_rtattr_flags(tb, INET_DIAG_MAX, (struct rtattr *)(r + 1),
+			   nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)),
+			   NLA_F_NESTED);
+
+	if (proto == IPPROTO_MPTCP && tb[INET_DIAG_INFO]) {
+		int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
+		struct mptcp_info *info;
+
+		/* workaround fort older kernels with less fields */
+		if (len < sizeof(*info)) {
+			info = alloca(sizeof(*info));
+			memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
+			memset((char *)info + len, 0, sizeof(*info) - len);
+		} else {
+			info = RTA_DATA(tb[INET_DIAG_INFO]);
+		}
+		print_info_msg(info);
+	}
+	if (proto == IPPROTO_TCP && tb[INET_DIAG_ULP_INFO]) {
+		struct rtattr *ulpinfo[INET_ULP_INFO_MAX + 1] = { 0 };
+
+		parse_rtattr_nested(ulpinfo, INET_ULP_INFO_MAX,
+				    tb[INET_DIAG_ULP_INFO]);
+
+		if (ulpinfo[INET_ULP_INFO_MPTCP]) {
+			struct rtattr *sfinfo[MPTCP_SUBFLOW_ATTR_MAX + 1] = { 0 };
+
+			parse_rtattr_nested(sfinfo, MPTCP_SUBFLOW_ATTR_MAX,
+					    ulpinfo[INET_ULP_INFO_MPTCP]);
+			print_subflow_info(sfinfo);
+		} else {
+			printf("It's a normal TCP!\n");
+		}
+	}
+}
+
+static void recv_nlmsg(int fd, __u32 proto)
+{
+	char rcv_buff[8192];
+	struct nlmsghdr *nlh = (struct nlmsghdr *)rcv_buff;
+	struct sockaddr_nl rcv_nladdr = {
+		.nl_family = AF_NETLINK
+	};
+	struct iovec rcv_iov = {
+		.iov_base = rcv_buff,
+		.iov_len = sizeof(rcv_buff)
+	};
+	struct msghdr rcv_msg = {
+		.msg_name = &rcv_nladdr,
+		.msg_namelen = sizeof(rcv_nladdr),
+		.msg_iov = &rcv_iov,
+		.msg_iovlen = 1
+	};
+	int len;
+
+	len = recvmsg(fd, &rcv_msg, 0);
+
+	while (NLMSG_OK(nlh, len)) {
+		if (nlh->nlmsg_type == NLMSG_DONE) {
+			printf("NLMSG_DONE\n");
+			break;
+		} else if (nlh->nlmsg_type == NLMSG_ERROR) {
+			struct nlmsgerr *err;
+
+			err = (struct nlmsgerr *)NLMSG_DATA(nlh);
+			printf("Error %d:%s\n",
+			       -(err->error), strerror(-(err->error)));
+			break;
+		}
+		parse_nlmsg(nlh, proto);
+		nlh = NLMSG_NEXT(nlh, len);
+	}
+}
+
+static void get_mptcpinfo(__u32 token)
+{
+	struct inet_diag_req_v2 r = {
+		.sdiag_family           = AF_INET,
+		/* Real proto is set via INET_DIAG_REQ_PROTOCOL */
+		.sdiag_protocol         = IPPROTO_TCP,
+		.idiag_ext              = 1 << (INET_DIAG_INFO - 1),
+		.id.idiag_cookie[0]     = token,
+	};
+	__u32 proto = IPPROTO_MPTCP;
+	int fd;
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
+	if (fd < 0)
+		die_perror("Netlink socket");
+
+	send_query(fd, &r, proto);
+	recv_nlmsg(fd, proto);
+
+	close(fd);
+}
+
+static void get_subflow_info(char *subflow_addrs)
+{
+	struct inet_diag_req_v2 r = {
+		.sdiag_family           = AF_INET,
+		.sdiag_protocol         = IPPROTO_TCP,
+		.idiag_ext              = 1 << (INET_DIAG_INFO - 1),
+		.id.idiag_cookie[0]     = INET_DIAG_NOCOOKIE,
+		.id.idiag_cookie[1]     = INET_DIAG_NOCOOKIE,
+	};
+	char saddr[64], daddr[64];
+	int sport, dport;
+	int ret;
+	int fd;
+
+	ret = sscanf(subflow_addrs, "%[^:]:%d %[^:]:%d", saddr, &sport, daddr, &dport);
+	if (ret != 4)
+		die_perror("IP PORT Pairs has style problems!");
+
+	printf("%s:%d -> %s:%d\n", saddr, sport, daddr, dport);
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
+	if (fd < 0)
+		die_perror("Netlink socket");
+
+	r.id.idiag_sport = htons(sport);
+	r.id.idiag_dport = htons(dport);
+
+	inet_pton(AF_INET, saddr, &r.id.idiag_src);
+	inet_pton(AF_INET, daddr, &r.id.idiag_dst);
+	send_query(fd, &r, IPPROTO_TCP);
+	recv_nlmsg(fd, IPPROTO_TCP);
+}
+
+static void parse_opts(int argc, char **argv, struct params *p)
+{
+	int c;
+
+	if (argc < 2)
+		die_usage(1);
+
+	while ((c = getopt(argc, argv, "ht:s:")) != -1) {
+		switch (c) {
+		case 'h':
+			die_usage(0);
+			break;
+		case 't':
+			sscanf(optarg, "%x", &p->target_token);
+			break;
+		case 's':
+			strncpy(p->subflow_addrs, optarg,
+				sizeof(p->subflow_addrs) - 1);
+			break;
+		default:
+			die_usage(1);
+			break;
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	struct params p = { 0 };
+
+	parse_opts(argc, argv, &p);
+
+	if (p.target_token)
+		get_mptcpinfo(p.target_token);
+
+	if (p.subflow_addrs[0] != '\0')
+		get_subflow_info(p.subflow_addrs);
+
+	return 0;
+}
+
diff --git a/tools/testing/selftests/net/mptcp/mptcp_inq.c b/tools/testing/selftests/net/mptcp/mptcp_inq.c
new file mode 100644
index 000000000000..8e8f6441ad8b
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_inq.c
@@ -0,0 +1,613 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <sys/ioctl.h>
+#include <sys/random.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <netdb.h>
+#include <netinet/in.h>
+
+#include <linux/tcp.h>
+#include <linux/sockios.h>
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+#ifndef SOL_MPTCP
+#define SOL_MPTCP 284
+#endif
+
+static int pf = AF_INET;
+static int proto_tx = IPPROTO_MPTCP;
+static int proto_rx = IPPROTO_MPTCP;
+
+static void die_perror(const char *msg)
+{
+	perror(msg);
+	exit(1);
+}
+
+static void die_usage(int r)
+{
+	fprintf(stderr, "Usage: mptcp_inq [-6] [ -t tcp|mptcp ] [ -r tcp|mptcp]\n");
+	exit(r);
+}
+
+static void xerror(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+	exit(1);
+}
+
+static const char *getxinfo_strerr(int err)
+{
+	if (err == EAI_SYSTEM)
+		return strerror(errno);
+
+	return gai_strerror(err);
+}
+
+static void xgetaddrinfo(const char *node, const char *service,
+			 struct addrinfo *hints,
+			 struct addrinfo **res)
+{
+	int err;
+
+again:
+	err = getaddrinfo(node, service, hints, res);
+	if (err) {
+		const char *errstr;
+
+		if (err == EAI_SOCKTYPE) {
+			hints->ai_protocol = IPPROTO_TCP;
+			goto again;
+		}
+
+		errstr = getxinfo_strerr(err);
+
+		fprintf(stderr, "Fatal: getaddrinfo(%s:%s): %s\n",
+			node ? node : "", service ? service : "", errstr);
+		exit(1);
+	}
+}
+
+static int sock_listen_mptcp(const char * const listenaddr,
+			     const char * const port)
+{
+	int sock = -1;
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+		.ai_flags = AI_PASSIVE | AI_NUMERICHOST
+	};
+
+	hints.ai_family = pf;
+
+	struct addrinfo *a, *addr;
+	int one = 1;
+
+	xgetaddrinfo(listenaddr, port, &hints, &addr);
+	hints.ai_family = pf;
+
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, proto_rx);
+		if (sock < 0)
+			continue;
+
+		if (-1 == setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one,
+				     sizeof(one)))
+			perror("setsockopt");
+
+		if (bind(sock, a->ai_addr, a->ai_addrlen) == 0)
+			break; /* success */
+
+		perror("bind");
+		close(sock);
+		sock = -1;
+	}
+
+	freeaddrinfo(addr);
+
+	if (sock < 0)
+		xerror("could not create listen socket");
+
+	if (listen(sock, 20))
+		die_perror("listen");
+
+	return sock;
+}
+
+static int sock_connect_mptcp(const char * const remoteaddr,
+			      const char * const port, int proto)
+{
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+	};
+	struct addrinfo *a, *addr;
+	int sock = -1;
+
+	hints.ai_family = pf;
+
+	xgetaddrinfo(remoteaddr, port, &hints, &addr);
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, proto);
+		if (sock < 0)
+			continue;
+
+		if (connect(sock, a->ai_addr, a->ai_addrlen) == 0)
+			break; /* success */
+
+		die_perror("connect");
+	}
+
+	if (sock < 0)
+		xerror("could not create connect socket");
+
+	freeaddrinfo(addr);
+	return sock;
+}
+
+static int protostr_to_num(const char *s)
+{
+	if (strcasecmp(s, "tcp") == 0)
+		return IPPROTO_TCP;
+	if (strcasecmp(s, "mptcp") == 0)
+		return IPPROTO_MPTCP;
+
+	die_usage(1);
+	return 0;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "h6t:r:")) != -1) {
+		switch (c) {
+		case 'h':
+			die_usage(0);
+			break;
+		case '6':
+			pf = AF_INET6;
+			break;
+		case 't':
+			proto_tx = protostr_to_num(optarg);
+			break;
+		case 'r':
+			proto_rx = protostr_to_num(optarg);
+			break;
+		default:
+			die_usage(1);
+			break;
+		}
+	}
+}
+
+/* wait up to timeout milliseconds */
+static void wait_for_ack(int fd, int timeout, size_t total)
+{
+	int i;
+
+	for (i = 0; i < timeout; i++) {
+		int nsd, ret, queued = -1;
+		struct timespec req;
+
+		ret = ioctl(fd, TIOCOUTQ, &queued);
+		if (ret < 0)
+			die_perror("TIOCOUTQ");
+
+		ret = ioctl(fd, SIOCOUTQNSD, &nsd);
+		if (ret < 0)
+			die_perror("SIOCOUTQNSD");
+
+		if ((size_t)queued > total)
+			xerror("TIOCOUTQ %u, but only %zu expected\n", queued, total);
+		assert(nsd <= queued);
+
+		if (queued == 0)
+			return;
+
+		/* wait for peer to ack rx of all data */
+		req.tv_sec = 0;
+		req.tv_nsec = 1 * 1000 * 1000ul; /* 1ms */
+		nanosleep(&req, NULL);
+	}
+
+	xerror("still tx data queued after %u ms\n", timeout);
+}
+
+static void connect_one_server(int fd, int unixfd)
+{
+	size_t len, i, total, sent;
+	char buf[4096], buf2[4096];
+	ssize_t ret;
+
+	len = rand() % (sizeof(buf) - 1);
+
+	if (len < 128)
+		len = 128;
+
+	for (i = 0; i < len ; i++) {
+		buf[i] = rand() % 26;
+		buf[i] += 'A';
+	}
+
+	buf[i] = '\n';
+
+	/* un-block server */
+	ret = read(unixfd, buf2, 4);
+	assert(ret == 4);
+
+	assert(strncmp(buf2, "xmit", 4) == 0);
+
+	ret = write(unixfd, &len, sizeof(len));
+	assert(ret == (ssize_t)sizeof(len));
+
+	ret = write(fd, buf, len);
+	if (ret < 0)
+		die_perror("write");
+
+	if (ret != (ssize_t)len)
+		xerror("short write");
+
+	ret = read(unixfd, buf2, 4);
+	assert(strncmp(buf2, "huge", 4) == 0);
+
+	total = rand() % (16 * 1024 * 1024);
+	total += (1 * 1024 * 1024);
+	sent = total;
+
+	ret = write(unixfd, &total, sizeof(total));
+	assert(ret == (ssize_t)sizeof(total));
+
+	wait_for_ack(fd, 5000, len);
+
+	while (total > 0) {
+		if (total > sizeof(buf))
+			len = sizeof(buf);
+		else
+			len = total;
+
+		ret = write(fd, buf, len);
+		if (ret < 0)
+			die_perror("write");
+		total -= ret;
+
+		/* we don't have to care about buf content, only
+		 * number of total bytes sent
+		 */
+	}
+
+	ret = read(unixfd, buf2, 4);
+	assert(ret == 4);
+	assert(strncmp(buf2, "shut", 4) == 0);
+
+	wait_for_ack(fd, 5000, sent);
+
+	ret = write(fd, buf, 1);
+	assert(ret == 1);
+	close(fd);
+	ret = write(unixfd, "closed", 6);
+	assert(ret == 6);
+
+	close(unixfd);
+}
+
+static void get_tcp_inq(struct msghdr *msgh, unsigned int *inqv)
+{
+	struct cmsghdr *cmsg;
+
+	for (cmsg = CMSG_FIRSTHDR(msgh); cmsg ; cmsg = CMSG_NXTHDR(msgh, cmsg)) {
+		if (cmsg->cmsg_level == IPPROTO_TCP && cmsg->cmsg_type == TCP_CM_INQ) {
+			memcpy(inqv, CMSG_DATA(cmsg), sizeof(*inqv));
+			return;
+		}
+	}
+
+	xerror("could not find TCP_CM_INQ cmsg type");
+}
+
+static void process_one_client(int fd, int unixfd)
+{
+	unsigned int tcp_inq;
+	size_t expect_len;
+	char msg_buf[4096];
+	char buf[4096];
+	char tmp[16];
+	struct iovec iov = {
+		.iov_base = buf,
+		.iov_len = 1,
+	};
+	struct msghdr msg = {
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+		.msg_control = msg_buf,
+		.msg_controllen = sizeof(msg_buf),
+	};
+	ssize_t ret, tot;
+
+	ret = write(unixfd, "xmit", 4);
+	assert(ret == 4);
+
+	ret = read(unixfd, &expect_len, sizeof(expect_len));
+	assert(ret == (ssize_t)sizeof(expect_len));
+
+	if (expect_len > sizeof(buf))
+		xerror("expect len %zu exceeds buffer size", expect_len);
+
+	for (;;) {
+		struct timespec req;
+		unsigned int queued;
+
+		ret = ioctl(fd, FIONREAD, &queued);
+		if (ret < 0)
+			die_perror("FIONREAD");
+		if (queued > expect_len)
+			xerror("FIONREAD returned %u, but only %zu expected\n",
+			       queued, expect_len);
+		if (queued == expect_len)
+			break;
+
+		req.tv_sec = 0;
+		req.tv_nsec = 1000 * 1000ul;
+		nanosleep(&req, NULL);
+	}
+
+	/* read one byte, expect cmsg to return expected - 1 */
+	ret = recvmsg(fd, &msg, 0);
+	if (ret < 0)
+		die_perror("recvmsg");
+
+	if (msg.msg_controllen == 0)
+		xerror("msg_controllen is 0");
+
+	get_tcp_inq(&msg, &tcp_inq);
+
+	assert((size_t)tcp_inq == (expect_len - 1));
+
+	iov.iov_len = sizeof(buf);
+	ret = recvmsg(fd, &msg, 0);
+	if (ret < 0)
+		die_perror("recvmsg");
+
+	/* should have gotten exact remainder of all pending data */
+	assert(ret == (ssize_t)tcp_inq);
+
+	/* should be 0, all drained */
+	get_tcp_inq(&msg, &tcp_inq);
+	assert(tcp_inq == 0);
+
+	/* request a large swath of data. */
+	ret = write(unixfd, "huge", 4);
+	assert(ret == 4);
+
+	ret = read(unixfd, &expect_len, sizeof(expect_len));
+	assert(ret == (ssize_t)sizeof(expect_len));
+
+	/* peer should send us a few mb of data */
+	if (expect_len <= sizeof(buf))
+		xerror("expect len %zu too small\n", expect_len);
+
+	tot = 0;
+	do {
+		iov.iov_len = sizeof(buf);
+		ret = recvmsg(fd, &msg, 0);
+		if (ret < 0)
+			die_perror("recvmsg");
+
+		tot += ret;
+
+		get_tcp_inq(&msg, &tcp_inq);
+
+		if (tcp_inq > expect_len - tot)
+			xerror("inq %d, remaining %d total_len %d\n",
+			       tcp_inq, expect_len - tot, (int)expect_len);
+
+		assert(tcp_inq <= expect_len - tot);
+	} while ((size_t)tot < expect_len);
+
+	ret = write(unixfd, "shut", 4);
+	assert(ret == 4);
+
+	/* wait for hangup. Should have received one more byte of data. */
+	ret = read(unixfd, tmp, sizeof(tmp));
+	assert(ret == 6);
+	assert(strncmp(tmp, "closed", 6) == 0);
+
+	sleep(1);
+
+	iov.iov_len = 1;
+	ret = recvmsg(fd, &msg, 0);
+	if (ret < 0)
+		die_perror("recvmsg");
+	assert(ret == 1);
+
+	get_tcp_inq(&msg, &tcp_inq);
+
+	/* tcp_inq should be 1 due to received fin. */
+	assert(tcp_inq == 1);
+
+	iov.iov_len = 1;
+	ret = recvmsg(fd, &msg, 0);
+	if (ret < 0)
+		die_perror("recvmsg");
+
+	/* expect EOF */
+	assert(ret == 0);
+	get_tcp_inq(&msg, &tcp_inq);
+	assert(tcp_inq == 1);
+
+	close(fd);
+}
+
+static int xaccept(int s)
+{
+	int fd = accept(s, NULL, 0);
+
+	if (fd < 0)
+		die_perror("accept");
+
+	return fd;
+}
+
+static int server(int unixfd)
+{
+	int fd = -1, r, on = 1;
+
+	switch (pf) {
+	case AF_INET:
+		fd = sock_listen_mptcp("127.0.0.1", "15432");
+		break;
+	case AF_INET6:
+		fd = sock_listen_mptcp("::1", "15432");
+		break;
+	default:
+		xerror("Unknown pf %d\n", pf);
+		break;
+	}
+
+	r = write(unixfd, "conn", 4);
+	assert(r == 4);
+
+	alarm(15);
+	r = xaccept(fd);
+
+	if (-1 == setsockopt(r, IPPROTO_TCP, TCP_INQ, &on, sizeof(on)))
+		die_perror("setsockopt");
+
+	process_one_client(r, unixfd);
+
+	close(fd);
+	return 0;
+}
+
+static int client(int unixfd)
+{
+	int fd = -1;
+
+	alarm(15);
+
+	switch (pf) {
+	case AF_INET:
+		fd = sock_connect_mptcp("127.0.0.1", "15432", proto_tx);
+		break;
+	case AF_INET6:
+		fd = sock_connect_mptcp("::1", "15432", proto_tx);
+		break;
+	default:
+		xerror("Unknown pf %d\n", pf);
+	}
+
+	connect_one_server(fd, unixfd);
+
+	return 0;
+}
+
+static void init_rng(void)
+{
+	unsigned int foo;
+
+	if (getrandom(&foo, sizeof(foo), 0) == -1) {
+		perror("getrandom");
+		exit(1);
+	}
+
+	srand(foo);
+}
+
+static pid_t xfork(void)
+{
+	pid_t p = fork();
+
+	if (p < 0)
+		die_perror("fork");
+	else if (p == 0)
+		init_rng();
+
+	return p;
+}
+
+static int rcheck(int wstatus, const char *what)
+{
+	if (WIFEXITED(wstatus)) {
+		if (WEXITSTATUS(wstatus) == 0)
+			return 0;
+		fprintf(stderr, "%s exited, status=%d\n", what, WEXITSTATUS(wstatus));
+		return WEXITSTATUS(wstatus);
+	} else if (WIFSIGNALED(wstatus)) {
+		xerror("%s killed by signal %d\n", what, WTERMSIG(wstatus));
+	} else if (WIFSTOPPED(wstatus)) {
+		xerror("%s stopped by signal %d\n", what, WSTOPSIG(wstatus));
+	}
+
+	return 111;
+}
+
+int main(int argc, char *argv[])
+{
+	int e1, e2, wstatus;
+	pid_t s, c, ret;
+	int unixfds[2];
+
+	parse_opts(argc, argv);
+
+	e1 = socketpair(AF_UNIX, SOCK_DGRAM, 0, unixfds);
+	if (e1 < 0)
+		die_perror("pipe");
+
+	s = xfork();
+	if (s == 0) {
+		close(unixfds[0]);
+		ret = server(unixfds[1]);
+		close(unixfds[1]);
+		return ret;
+	}
+
+	close(unixfds[1]);
+
+	/* wait until server bound a socket */
+	e1 = read(unixfds[0], &e1, 4);
+	assert(e1 == 4);
+
+	c = xfork();
+	if (c == 0)
+		return client(unixfds[0]);
+
+	close(unixfds[0]);
+
+	ret = waitpid(s, &wstatus, 0);
+	if (ret == -1)
+		die_perror("waitpid");
+	e1 = rcheck(wstatus, "server");
+	ret = waitpid(c, &wstatus, 0);
+	if (ret == -1)
+		die_perror("waitpid");
+	e2 = rcheck(wstatus, "client");
+
+	return e1 ? e1 : e2;
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
new file mode 100755
index 000000000000..b2e6e548f796
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -0,0 +1,4427 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it, especially because there were too many before having
+# address all other issues detected by shellcheck.
+#shellcheck disable=SC2086
+
+# ShellCheck incorrectly believes that most of the code here is unreachable
+# because it's invoked by variable name, see how the "tests" array is used
+#shellcheck disable=SC2317,SC2329
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ret=0
+sin=""
+sinfail=""
+sout=""
+cin=""
+cinfail=""
+cinsent=""
+tmpfile=""
+cout=""
+err=""
+capout=""
+cappid=""
+ns1=""
+ns2=""
+iptables="iptables"
+ip6tables="ip6tables"
+timeout_poll=30
+timeout_test=$((timeout_poll * 2 + 1))
+capture=false
+checksum=false
+check_invert=0
+validate_checksum=false
+init=0
+evts_ns1=""
+evts_ns2=""
+evts_ns1_pid=0
+evts_ns2_pid=0
+last_test_failed=0
+last_test_skipped=0
+last_test_ignored=1
+
+declare -A all_tests
+declare -a only_tests_ids
+declare -a only_tests_names
+declare -A failed_tests
+MPTCP_LIB_TEST_FORMAT="%03u %s\n"
+TEST_NAME=""
+nr_blank=6
+
+# These var are used only in some tests, make sure they are not already set
+unset FAILING_LINKS
+unset test_linkfail
+unset addr_nr_ns1
+unset addr_nr_ns2
+unset cestab_ns1
+unset cestab_ns2
+unset sflags
+unset fastclose
+unset fullmesh
+unset speed
+unset bind_addr
+unset join_syn_rej
+unset join_csum_ns1
+unset join_csum_ns2
+unset join_fail_nr
+unset join_rst_nr
+unset join_infi_nr
+unset join_corrupted_pkts
+unset join_syn_tx
+unset join_create_err
+unset join_bind_err
+unset join_connect_err
+
+unset fb_ns1
+unset fb_ns2
+unset fb_infinite_map_tx
+unset fb_dss_corruption
+unset fb_simult_conn
+unset fb_mpc_passive
+unset fb_mpc_active
+unset fb_mpc_data
+unset fb_md5_sig
+unset fb_dss
+
+# generated using "nfbpf_compile '(ip && (ip[54] & 0xf0) == 0x30) ||
+#				  (ip6 && (ip6[74] & 0xf0) == 0x30)'"
+CBPF_MPTCP_SUBOPTION_ADD_ADDR="14,
+			       48 0 0 0,
+			       84 0 0 240,
+			       21 0 3 64,
+			       48 0 0 54,
+			       84 0 0 240,
+			       21 6 7 48,
+			       48 0 0 0,
+			       84 0 0 240,
+			       21 0 4 96,
+			       48 0 0 74,
+			       84 0 0 240,
+			       21 0 1 48,
+			       6 0 0 65535,
+			       6 0 0 0"
+
+init_partial()
+{
+	capout=$(mktemp)
+
+	mptcp_lib_ns_init ns1 ns2
+
+	local netns
+	for netns in "$ns1" "$ns2"; do
+		ip netns exec $netns sysctl -q net.mptcp.pm_type=0 2>/dev/null || true
+		if $checksum; then
+			ip netns exec $netns sysctl -q net.mptcp.checksum_enabled=1
+		fi
+	done
+
+	check_invert=0
+	validate_checksum=$checksum
+
+	#  ns1         ns2
+	# ns1eth1    ns2eth1
+	# ns1eth2    ns2eth2
+	# ns1eth3    ns2eth3
+	# ns1eth4    ns2eth4
+
+	local i
+	for i in $(seq 1 4); do
+		ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2"
+		ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i
+		ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad
+		ip -net "$ns1" link set ns1eth$i up
+
+		ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i
+		ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad
+		ip -net "$ns2" link set ns2eth$i up
+
+		# let $ns2 reach any $ns1 address from any interface
+		ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i
+		ip -net "$ns2" route add default via dead:beef:$i::1 dev ns2eth$i metric 10$i
+	done
+}
+
+init_shapers()
+{
+	local i
+	for i in $(seq 1 4); do
+		tc -n $ns1 qdisc add dev ns1eth$i root netem rate 20mbit delay 1ms
+		tc -n $ns2 qdisc add dev ns2eth$i root netem rate 20mbit delay 1ms
+	done
+}
+
+cleanup_partial()
+{
+	rm -f "$capout"
+
+	mptcp_lib_ns_exit "${ns1}" "${ns2}"
+}
+
+init() {
+	init=1
+
+	mptcp_lib_check_mptcp
+	mptcp_lib_check_kallsyms
+	mptcp_lib_check_tools ip tc ss "${iptables}" "${ip6tables}"
+
+	sin=$(mktemp)
+	sout=$(mktemp)
+	cin=$(mktemp)
+	cinsent=$(mktemp)
+	cout=$(mktemp)
+	err=$(mktemp)
+	evts_ns1=$(mktemp)
+	evts_ns2=$(mktemp)
+
+	trap cleanup EXIT
+
+	make_file "$cin" "client" 1 >/dev/null
+	make_file "$sin" "server" 1 >/dev/null
+}
+
+cleanup()
+{
+	rm -f "$cin" "$cout" "$sinfail"
+	rm -f "$sin" "$sout" "$cinsent" "$cinfail"
+	rm -f "$tmpfile"
+	rm -rf $evts_ns1 $evts_ns2
+	rm -f "$err"
+	cleanup_partial
+}
+
+print_check()
+{
+	printf "%-${nr_blank}s%-36s" " " "${*}"
+}
+
+print_info()
+{
+	# It can be empty, no need to print anything then
+	[ -z "${1}" ] && return
+
+	mptcp_lib_print_info "      Info: ${*}"
+}
+
+print_ok()
+{
+	mptcp_lib_pr_ok "${@}"
+}
+
+print_fail()
+{
+	mptcp_lib_pr_fail "${@}"
+}
+
+print_skip()
+{
+	mptcp_lib_pr_skip "${@}"
+}
+
+# $1: check name; $2: rc
+print_results()
+{
+	local check="${1}"
+	local rc=${2}
+
+	print_check "${check}"
+	if [ ${rc} = ${KSFT_PASS} ]; then
+		print_ok
+	elif [ ${rc} = ${KSFT_SKIP} ]; then
+		print_skip
+	else
+		fail_test "see above"
+	fi
+}
+
+# [ $1: fail msg ]
+mark_as_skipped()
+{
+	local msg="${1:-"Feature not supported"}"
+
+	mptcp_lib_fail_if_expected_feature "${msg}"
+
+	print_check "${msg}"
+	print_skip
+
+	last_test_skipped=1
+}
+
+# $@: condition
+continue_if()
+{
+	if ! "${@}"; then
+		mark_as_skipped
+		return 1
+	fi
+}
+
+skip_test()
+{
+	if [ "${#only_tests_ids[@]}" -eq 0 ] && [ "${#only_tests_names[@]}" -eq 0 ]; then
+		return 1
+	fi
+
+	local i
+	for i in "${only_tests_ids[@]}"; do
+		if [ "$((MPTCP_LIB_TEST_COUNTER+1))" -eq "${i}" ]; then
+			return 1
+		fi
+	done
+	for i in "${only_tests_names[@]}"; do
+		if [ "${TEST_NAME}" = "${i}" ]; then
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+append_prev_results()
+{
+	if [ ${last_test_failed} -eq 1 ]; then
+		mptcp_lib_result_fail "${TEST_NAME}"
+	elif [ ${last_test_skipped} -eq 1 ]; then
+		mptcp_lib_result_skip "${TEST_NAME}"
+	elif [ ${last_test_ignored} -ne 1 ]; then
+		mptcp_lib_result_pass "${TEST_NAME}"
+	fi
+
+	last_test_failed=0
+	last_test_skipped=0
+	last_test_ignored=0
+}
+
+# $1: test name
+reset()
+{
+	append_prev_results
+
+	TEST_NAME="${1}"
+
+	MPTCP_LIB_SUBTEST_FLAKY=0 # reset if modified
+
+	if skip_test; then
+		MPTCP_LIB_TEST_COUNTER=$((MPTCP_LIB_TEST_COUNTER+1))
+		last_test_ignored=1
+		return 1
+	fi
+
+	mptcp_lib_print_title "${TEST_NAME}"
+
+	if [ "${init}" != "1" ]; then
+		init
+	else
+		cleanup_partial
+	fi
+
+	init_partial
+
+	return 0
+}
+
+# $1: test name ; $2: counter to check
+reset_check_counter()
+{
+	reset "${1}" || return 1
+
+	local counter="${2}"
+
+	if ! nstat -asz "${counter}" | grep -wq "${counter}"; then
+		mark_as_skipped "counter '${counter}' is not available"
+		return 1
+	fi
+}
+
+# $1: test name
+reset_with_cookies()
+{
+	reset "${1}" || return 1
+
+	local netns
+	for netns in "$ns1" "$ns2"; do
+		ip netns exec $netns sysctl -q net.ipv4.tcp_syncookies=2
+	done
+}
+
+# $1: test name
+reset_with_add_addr_timeout()
+{
+	local ip="${2:-4}"
+	local tables
+
+	reset "${1}" || return 1
+
+	tables="${iptables}"
+	if [ $ip -eq 6 ]; then
+		tables="${ip6tables}"
+	fi
+
+	# set a maximum, to avoid too long timeout with exponential backoff
+	ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
+
+	if ! ip netns exec $ns2 $tables -A OUTPUT -p tcp \
+			-m tcp --tcp-option 30 \
+			-m bpf --bytecode \
+			"$CBPF_MPTCP_SUBOPTION_ADD_ADDR" \
+			-j DROP; then
+		mark_as_skipped "unable to set the 'add addr' rule"
+		return 1
+	fi
+}
+
+# $1: test name
+reset_with_checksum()
+{
+	local ns1_enable=$1
+	local ns2_enable=$2
+
+	reset "checksum test ${ns1_enable} ${ns2_enable}" || return 1
+
+	ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=$ns1_enable
+	ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=$ns2_enable
+
+	validate_checksum=true
+}
+
+reset_with_allow_join_id0()
+{
+	local ns1_enable=$2
+	local ns2_enable=$3
+
+	reset "${1}" || return 1
+
+	ip netns exec $ns1 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns1_enable
+	ip netns exec $ns2 sysctl -q net.mptcp.allow_join_initial_addr_port=$ns2_enable
+}
+
+# Modify TCP payload without corrupting the TCP packet
+#
+# This rule inverts a 8-bit word at byte offset 148 for the 2nd TCP ACK packets
+# carrying enough data.
+# Once it is done, the TCP Checksum field is updated so the packet is still
+# considered as valid at the TCP level.
+# Because the MPTCP checksum, covering the TCP options and data, has not been
+# updated, the modification will be detected and an MP_FAIL will be emitted:
+# what we want to validate here without corrupting "random" MPTCP options.
+#
+# To avoid having tc producing this pr_info() message for each TCP ACK packets
+# not carrying enough data:
+#
+#     tc action pedit offset 162 out of bounds
+#
+# Netfilter is used to mark packets with enough data.
+setup_fail_rules()
+{
+	check_invert=1
+	validate_checksum=true
+	local i="$1"
+	local ip="${2:-4}"
+	local tables
+
+	tables="${iptables}"
+	if [ $ip -eq 6 ]; then
+		tables="${ip6tables}"
+	fi
+
+	ip netns exec $ns2 $tables \
+		-t mangle \
+		-A OUTPUT \
+		-o ns2eth$i \
+		-p tcp \
+		-m length --length 150:9999 \
+		-m statistic --mode nth --packet 1 --every 99999 \
+		-j MARK --set-mark 42 || return ${KSFT_SKIP}
+
+	tc -n $ns2 qdisc add dev ns2eth$i clsact || return ${KSFT_SKIP}
+	tc -n $ns2 filter add dev ns2eth$i egress \
+		protocol ip prio 1000 \
+		handle 42 fw \
+		action pedit munge offset 148 u8 invert \
+		pipe csum tcp \
+		index 100 || return ${KSFT_SKIP}
+}
+
+reset_with_fail()
+{
+	reset_check_counter "${1}" "MPTcpExtInfiniteMapTx" || return 1
+	shift
+
+	ip netns exec $ns1 sysctl -q net.mptcp.checksum_enabled=1
+	ip netns exec $ns2 sysctl -q net.mptcp.checksum_enabled=1
+
+	local rc=0
+	setup_fail_rules "${@}" || rc=$?
+
+	if [ ${rc} -eq ${KSFT_SKIP} ]; then
+		mark_as_skipped "unable to set the 'fail' rules"
+		return 1
+	fi
+}
+
+start_events()
+{
+	mptcp_lib_events "${ns1}" "${evts_ns1}" evts_ns1_pid
+	mptcp_lib_events "${ns2}" "${evts_ns2}" evts_ns2_pid
+}
+
+reset_with_events()
+{
+	reset "${1}" || return 1
+
+	start_events
+}
+
+reset_with_tcp_filter()
+{
+	reset "${1}" || return 1
+	shift
+
+	local ns="${!1}"
+	local src="${2}"
+	local target="${3}"
+	local chain="${4:-INPUT}"
+
+	if ! ip netns exec "${ns}" ${iptables} \
+			-A "${chain}" \
+			-s "${src}" \
+			-p tcp \
+			-j "${target}"; then
+		mark_as_skipped "unable to set the filter rules"
+		return 1
+	fi
+}
+
+# $1: err msg
+fail_test()
+{
+	if ! mptcp_lib_subtest_is_flaky; then
+		ret=${KSFT_FAIL}
+	fi
+
+	if [ ${#} -gt 0 ]; then
+		print_fail "${@}"
+	fi
+
+	# just in case a test is marked twice as failed
+	if [ ${last_test_failed} -eq 0 ]; then
+		failed_tests[${MPTCP_LIB_TEST_COUNTER}]="${TEST_NAME}"
+		dump_stats
+		last_test_failed=1
+	fi
+}
+
+get_failed_tests_ids()
+{
+	# sorted
+	local i
+	for i in "${!failed_tests[@]}"; do
+		echo "${i}"
+	done | sort -n
+}
+
+check_transfer()
+{
+	local in=$1
+	local out=$2
+	local what=$3
+	local bytes=$4
+	local i a b
+
+	local line
+	if [ -n "$bytes" ]; then
+		local out_size
+		# when truncating we must check the size explicitly
+		out_size=$(wc -c $out | awk '{print $1}')
+		if [ $out_size -ne $bytes ]; then
+			fail_test "$what output file has wrong size ($out_size, $bytes)"
+			return 1
+		fi
+
+		# note: BusyBox's "cmp" command doesn't support --bytes
+		tmpfile=$(mktemp)
+		head --bytes="$bytes" "$in" > "$tmpfile"
+		mv "$tmpfile" "$in"
+		head --bytes="$bytes" "$out" > "$tmpfile"
+		mv "$tmpfile" "$out"
+		tmpfile=""
+	fi
+	cmp -l "$in" "$out" | while read -r i a b; do
+		local sum=$((0${a} + 0${b}))
+		if [ $check_invert -eq 0 ] || [ $sum -ne $((0xff)) ]; then
+			fail_test "$what does not match (in, out):"
+			mptcp_lib_print_file_err "$in"
+			mptcp_lib_print_file_err "$out"
+
+			return 1
+		else
+			print_info "$what has inverted byte at ${i}"
+		fi
+	done
+
+	return 0
+}
+
+do_ping()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+
+	if ! ip netns exec ${connector_ns} ping -q -c 1 $connect_addr >/dev/null; then
+		fail_test "$listener_ns -> $connect_addr connectivity"
+	fi
+}
+
+link_failure()
+{
+	local ns="$1"
+
+	if [ -z "$FAILING_LINKS" ]; then
+		l=$((RANDOM%4))
+		FAILING_LINKS=$((l+1))
+	fi
+
+	local l
+	for l in $FAILING_LINKS; do
+		local veth="ns1eth$l"
+		ip -net "$ns" link set "$veth" down
+	done
+}
+
+rm_addr_count()
+{
+	mptcp_lib_get_counter "${1}" "MPTcpExtRmAddr"
+}
+
+# $1: ns, $2: old rm_addr counter in $ns
+wait_rm_addr()
+{
+	local ns="${1}"
+	local old_cnt="${2}"
+	local cnt
+
+	local i
+	for i in $(seq 10); do
+		cnt=$(rm_addr_count ${ns})
+		[ "$cnt" = "${old_cnt}" ] || break
+		sleep 0.1
+	done
+}
+
+rm_sf_count()
+{
+	mptcp_lib_get_counter "${1}" "MPTcpExtRmSubflow"
+}
+
+# $1: ns, $2: old rm_sf counter in $ns
+wait_rm_sf()
+{
+	local ns="${1}"
+	local old_cnt="${2}"
+	local cnt
+
+	local i
+	for i in $(seq 10); do
+		cnt=$(rm_sf_count ${ns})
+		[ "$cnt" = "${old_cnt}" ] || break
+		sleep 0.1
+	done
+}
+
+wait_mpj()
+{
+	local ns="${1}"
+	local cnt old_cnt
+
+	old_cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
+
+	local i
+	for i in $(seq 10); do
+		cnt=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPJoinAckRx")
+		[ "$cnt" = "${old_cnt}" ] || break
+		sleep 0.1
+	done
+}
+
+wait_ll_ready()
+{
+	local ns="${1}"
+
+	local i
+	for i in $(seq 50); do
+		ip -n "${ns}" -6 addr show scope link | grep "inet6 fe80" |
+			grep -qw "tentative" || break
+		sleep 0.1
+	done
+}
+
+get_ll_addr()
+{
+	local ns="${1}"
+	local iface="${2}"
+
+	ip -n "${ns}" -6 addr show dev "${iface}" scope link |
+		grep "inet6 fe80" | sed 's#.*\(fe80::.*\)/.*#\1#'
+}
+
+kill_events_pids()
+{
+	mptcp_lib_kill_wait $evts_ns1_pid
+	evts_ns1_pid=0
+	mptcp_lib_kill_wait $evts_ns2_pid
+	evts_ns2_pid=0
+}
+
+pm_nl_set_limits()
+{
+	mptcp_lib_pm_nl_set_limits "${@}"
+}
+
+pm_nl_add_endpoint()
+{
+	mptcp_lib_pm_nl_add_endpoint "${@}"
+}
+
+pm_nl_del_endpoint()
+{
+	mptcp_lib_pm_nl_del_endpoint "${@}"
+}
+
+pm_nl_flush_endpoint()
+{
+	mptcp_lib_pm_nl_flush_endpoint "${@}"
+}
+
+pm_nl_show_endpoints()
+{
+	mptcp_lib_pm_nl_show_endpoints "${@}"
+}
+
+pm_nl_change_endpoint()
+{
+	mptcp_lib_pm_nl_change_endpoint "${@}"
+}
+
+pm_nl_check_endpoint()
+{
+	local msg="$1"
+	local ns=$2
+	local addr=$3
+	local flags dev id port
+
+	print_check "${msg}"
+
+	shift 3
+	while [ -n "$1" ]; do
+		case "${1}" in
+		"flags" | "dev" | "id" | "port")
+			eval "${1}"="${2}"
+			shift
+			;;
+		*)
+			;;
+		esac
+
+		shift
+	done
+
+	if [ -z "${id}" ]; then
+		fail_test "bad test - missing endpoint id"
+		return
+	fi
+
+	check_output "mptcp_lib_pm_nl_get_endpoint ${ns} ${id}" \
+		"$(mptcp_lib_pm_nl_format_endpoints \
+			"${id},${addr},${flags//","/" "},${dev},${port}")"
+}
+
+pm_nl_set_endpoint()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+
+	local addr_nr_ns1=${addr_nr_ns1:-0}
+	local addr_nr_ns2=${addr_nr_ns2:-0}
+	local sflags=${sflags:-""}
+	local fullmesh=${fullmesh:-""}
+
+	local flags="subflow"
+	if [ -n "${fullmesh}" ]; then
+		flags="${flags},fullmesh"
+		addr_nr_ns2=${fullmesh}
+	fi
+
+	# let the mptcp subflow be established in background before
+	# do endpoint manipulation
+	if [ $addr_nr_ns1 != "0" ] || [ $addr_nr_ns2 != "0" ]; then
+		sleep 1
+	fi
+
+	if [ $addr_nr_ns1 -gt 0 ]; then
+		local counter=2
+		local add_nr_ns1=${addr_nr_ns1}
+		local id=10
+		while [ $add_nr_ns1 -gt 0 ]; do
+			local addr
+			if mptcp_lib_is_v6 "${connect_addr}"; then
+				addr="dead:beef:$counter::1"
+			else
+				addr="10.0.$counter.1"
+			fi
+			pm_nl_add_endpoint $ns1 $addr flags signal
+			counter=$((counter + 1))
+			add_nr_ns1=$((add_nr_ns1 - 1))
+			id=$((id + 1))
+		done
+	elif [ $addr_nr_ns1 -lt 0 ]; then
+		local rm_nr_ns1=$((-addr_nr_ns1))
+		if [ $rm_nr_ns1 -lt 8 ]; then
+			local counter=0
+			local line
+			pm_nl_show_endpoints ${listener_ns} | while read -r line; do
+				# shellcheck disable=SC2206 # we do want to split per word
+				local arr=($line)
+				local nr=0
+
+				local i
+				for i in "${arr[@]}"; do
+					if [ $i = "id" ]; then
+						if [ $counter -eq $rm_nr_ns1 ]; then
+							break
+						fi
+						id=${arr[$nr+1]}
+						rm_addr=$(rm_addr_count ${connector_ns})
+						pm_nl_del_endpoint ${listener_ns} $id
+						wait_rm_addr ${connector_ns} ${rm_addr}
+						counter=$((counter + 1))
+					fi
+					nr=$((nr + 1))
+				done
+			done
+		elif [ $rm_nr_ns1 -eq 8 ]; then
+			pm_nl_flush_endpoint ${listener_ns}
+		elif [ $rm_nr_ns1 -eq 9 ]; then
+			pm_nl_del_endpoint ${listener_ns} 0 ${connect_addr}
+		fi
+	fi
+
+	# if newly added endpoints must be deleted, give the background msk
+	# some time to created them
+	[ $addr_nr_ns1 -gt 0 ] && [ $addr_nr_ns2 -lt 0 ] && sleep 1
+
+	if [ $addr_nr_ns2 -gt 0 ]; then
+		local add_nr_ns2=${addr_nr_ns2}
+		local counter=3
+		local id=20
+		while [ $add_nr_ns2 -gt 0 ]; do
+			local addr
+			if mptcp_lib_is_v6 "${connect_addr}"; then
+				addr="dead:beef:$counter::2"
+			else
+				addr="10.0.$counter.2"
+			fi
+			pm_nl_add_endpoint $ns2 $addr flags $flags
+			counter=$((counter + 1))
+			add_nr_ns2=$((add_nr_ns2 - 1))
+			id=$((id + 1))
+		done
+	elif [ $addr_nr_ns2 -lt 0 ]; then
+		local rm_nr_ns2=$((-addr_nr_ns2))
+		if [ $rm_nr_ns2 -lt 8 ]; then
+			local counter=0
+			local line
+			pm_nl_show_endpoints ${connector_ns} | while read -r line; do
+				# shellcheck disable=SC2206 # we do want to split per word
+				local arr=($line)
+				local nr=0
+
+				local i
+				for i in "${arr[@]}"; do
+					if [ $i = "id" ]; then
+						if [ $counter -eq $rm_nr_ns2 ]; then
+							break
+						fi
+						local id rm_addr
+						# rm_addr are serialized, allow the previous one to
+						# complete
+						id=${arr[$nr+1]}
+						rm_addr=$(rm_addr_count ${listener_ns})
+						pm_nl_del_endpoint ${connector_ns} $id
+						wait_rm_addr ${listener_ns} ${rm_addr}
+						counter=$((counter + 1))
+					fi
+					nr=$((nr + 1))
+				done
+			done
+		elif [ $rm_nr_ns2 -eq 8 ]; then
+			pm_nl_flush_endpoint ${connector_ns}
+		elif [ $rm_nr_ns2 -eq 9 ]; then
+			local addr
+			if mptcp_lib_is_v6 "${connect_addr}"; then
+				addr="dead:beef:1::2"
+			else
+				addr="10.0.1.2"
+			fi
+			pm_nl_del_endpoint ${connector_ns} 0 $addr
+		fi
+	fi
+
+	if [ -n "${sflags}" ]; then
+		sleep 1
+
+		local netns
+		for netns in "$ns1" "$ns2"; do
+			local line
+			pm_nl_show_endpoints $netns | while read -r line; do
+				# shellcheck disable=SC2206 # we do want to split per word
+				local arr=($line)
+				local nr=0
+				local id
+
+				local i
+				for i in "${arr[@]}"; do
+					if [ $i = "id" ]; then
+						id=${arr[$nr+1]}
+					fi
+					nr=$((nr + 1))
+				done
+				pm_nl_change_endpoint $netns $id $sflags
+			done
+		done
+	fi
+}
+
+chk_cestab_nr()
+{
+	local ns=$1
+	local cestab=$2
+	local count
+
+	print_check "currently established: $cestab"
+	count=$(mptcp_lib_get_counter ${ns} "MPTcpExtMPCurrEstab")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$cestab" ]; then
+		fail_test "got $count current establish[s] expected $cestab"
+	else
+		print_ok
+	fi
+}
+
+# $1 namespace 1, $2 namespace 2
+check_cestab()
+{
+	if [ -n "${cestab_ns1}" ]; then
+		chk_cestab_nr ${1} ${cestab_ns1}
+	fi
+	if [ -n "${cestab_ns2}" ]; then
+		chk_cestab_nr ${2} ${cestab_ns2}
+	fi
+}
+
+cond_start_capture()
+{
+	local ns="$1"
+
+	:> "$capout"
+
+	if $capture; then
+		local capuser capfile
+		if [ -z $SUDO_USER ]; then
+			capuser=""
+		else
+			capuser="-Z $SUDO_USER"
+		fi
+
+		capfile=$(printf "mp_join-%02u-%s.pcap" "$MPTCP_LIB_TEST_COUNTER" "$ns")
+
+		echo "Capturing traffic for test $MPTCP_LIB_TEST_COUNTER into $capfile"
+		ip netns exec "$ns" tcpdump -i any -s 65535 -B 32768 $capuser -w "$capfile" > "$capout" 2>&1 &
+		cappid=$!
+
+		sleep 1
+	fi
+}
+
+cond_stop_capture()
+{
+	if $capture; then
+		sleep 1
+		kill $cappid
+		cat "$capout"
+	fi
+}
+
+get_port()
+{
+	echo "$((10000 + MPTCP_LIB_TEST_COUNTER - 1))"
+}
+
+do_transfer()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local cl_proto="$3"
+	local srv_proto="$4"
+	local connect_addr="$5"
+	local port
+
+	local FAILING_LINKS=${FAILING_LINKS:-""}
+	local fastclose=${fastclose:-""}
+	local speed=${speed:-"fast"}
+	local bind_addr=${bind_addr:-"::"}
+	local listener_in="${sin}"
+	local connector_in="${cin}"
+	port=$(get_port)
+
+	:> "$cout"
+	:> "$sout"
+
+	cond_start_capture ${listener_ns}
+
+	mptcp_lib_nstat_init "${listener_ns}"
+	mptcp_lib_nstat_init "${connector_ns}"
+
+	local extra_args
+	if [ $speed = "fast" ]; then
+		extra_args="-j"
+	elif [ $speed = "slow" ]; then
+		extra_args="-r 50"
+	elif [ $speed -gt 0 ]; then
+		extra_args="-r ${speed}"
+	fi
+
+	local extra_cl_args=""
+	local extra_srv_args=""
+	local trunc_size=""
+	if [ -n "${fastclose}" ]; then
+		if [ ${test_linkfail} -le 1 ]; then
+			fail_test "fastclose tests need test_linkfail argument"
+			return 1
+		fi
+
+		# disconnect
+		trunc_size=${test_linkfail}
+		local side=${fastclose}
+
+		if [ ${side} = "client" ]; then
+			extra_cl_args="-f ${test_linkfail}"
+			extra_srv_args="-f -1"
+		elif [ ${side} = "server" ]; then
+			extra_srv_args="-f ${test_linkfail}"
+			extra_cl_args="-f -1"
+		else
+			fail_test "wrong/unknown fastclose spec ${side}"
+			return 1
+		fi
+	fi
+
+	extra_srv_args="$extra_args $extra_srv_args"
+	if [ "$test_linkfail" -gt 1 ];then
+		listener_in="${sinfail}"
+	fi
+	ip netns exec ${listener_ns} \
+		./mptcp_connect -t ${timeout_poll} -l -p ${port} -s ${srv_proto} \
+			${extra_srv_args} "${bind_addr}" < "${listener_in}" > "${sout}" &
+	local spid=$!
+
+	mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
+
+	extra_cl_args="$extra_args $extra_cl_args"
+	if [ "$test_linkfail" -eq 0 ];then
+		ip netns exec ${connector_ns} \
+			./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+				$extra_cl_args $connect_addr < "$cin" > "$cout" &
+	elif [ "$test_linkfail" -eq 1 ] || [ "$test_linkfail" -eq 2 ];then
+		connector_in="${cinsent}"
+		( cat "$cinfail" ; sleep 2; link_failure $listener_ns ; cat "$cinfail" ) | \
+			tee "$cinsent" | \
+				ip netns exec ${connector_ns} \
+					./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+						$extra_cl_args $connect_addr > "$cout" &
+	else
+		connector_in="${cinsent}"
+		tee "$cinsent" < "$cinfail" | \
+			ip netns exec ${connector_ns} \
+				./mptcp_connect -t ${timeout_poll} -p $port -s ${cl_proto} \
+					$extra_cl_args $connect_addr > "$cout" &
+	fi
+	local cpid=$!
+
+	mptcp_lib_wait_timeout "${timeout_test}" "${listener_ns}" \
+		"${connector_ns}" "${port}" "${cpid}" "${spid}" &
+	local timeout_pid=$!
+
+	pm_nl_set_endpoint $listener_ns $connector_ns $connect_addr
+	check_cestab $listener_ns $connector_ns
+
+	wait $cpid
+	local retc=$?
+	wait $spid
+	local rets=$?
+
+	if kill -0 $timeout_pid; then
+		# Finished before the timeout: kill the background job
+		mptcp_lib_kill_group_wait $timeout_pid
+		timeout_pid=0
+	fi
+
+	cond_stop_capture
+
+	mptcp_lib_nstat_get "${listener_ns}"
+	mptcp_lib_nstat_get "${connector_ns}"
+
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ] || [ ${timeout_pid} -ne 0 ]; then
+		fail_test "client exit code $retc, server $rets"
+		mptcp_lib_pr_err_stats "${listener_ns}" "${connector_ns}" "${port}"
+		return 1
+	fi
+
+	check_transfer $listener_in $cout "file received by client" $trunc_size
+	retc=$?
+	check_transfer $connector_in $sout "file received by server" $trunc_size
+	rets=$?
+
+	[ $retc -eq 0 ] && [ $rets -eq 0 ]
+}
+
+make_file()
+{
+	local name=$1
+	local who=$2
+	local size=$3
+
+	mptcp_lib_make_file $name 1024 $size
+
+	print_info "Test file (size $size KB) for $who"
+}
+
+run_tests()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+
+	local size
+	local test_linkfail=${test_linkfail:-0}
+
+	# The values above 2 are reused to make test files
+	# with the given sizes (KB)
+	if [ "$test_linkfail" -gt 2 ]; then
+		size=$test_linkfail
+
+		if [ -z "$cinfail" ]; then
+			cinfail=$(mktemp)
+		fi
+		make_file "$cinfail" "client" $size
+	# create the input file for the failure test when
+	# the first failure test run
+	elif [ "$test_linkfail" -ne 0 ] && [ -z "$cinfail" ]; then
+		# the client file must be considerably larger
+		# of the maximum expected cwin value, or the
+		# link utilization will be not predicable
+		size=$((RANDOM%2))
+		size=$((size+1))
+		size=$((size*8192))
+		size=$((size + ( RANDOM % 8192) ))
+
+		cinfail=$(mktemp)
+		make_file "$cinfail" "client" $size
+	fi
+
+	if [ "$test_linkfail" -gt 2 ]; then
+		size=$test_linkfail
+
+		if [ -z "$sinfail" ]; then
+			sinfail=$(mktemp)
+		fi
+		make_file "$sinfail" "server" $size
+	elif [ "$test_linkfail" -eq 2 ] && [ -z "$sinfail" ]; then
+		size=$((RANDOM%16))
+		size=$((size+1))
+		size=$((size*2048))
+
+		sinfail=$(mktemp)
+		make_file "$sinfail" "server" $size
+	fi
+
+	do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr}
+}
+
+_dump_stats()
+{
+	local ns="${1}"
+	local side="${2}"
+
+	mptcp_lib_print_err "${side} ns stats (${ns2})"
+	mptcp_lib_pr_nstat "${ns}"
+	echo
+}
+
+dump_stats()
+{
+	_dump_stats "${ns1}" "Server"
+	_dump_stats "${ns2}" "Client"
+}
+
+chk_csum_nr()
+{
+	local csum_ns1=${1:-0}
+	local csum_ns2=${2:-0}
+	local count
+	local extra_msg=""
+	local allow_multi_errors_ns1=0
+	local allow_multi_errors_ns2=0
+
+	if [[ "${csum_ns1}" = "+"* ]]; then
+		allow_multi_errors_ns1=1
+		csum_ns1=${csum_ns1:1}
+	fi
+	if [[ "${csum_ns2}" = "+"* ]]; then
+		allow_multi_errors_ns2=1
+		csum_ns2=${csum_ns2:1}
+	fi
+
+	print_check "checksum server"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtDataCsumErr")
+	if [ -n "$count" ] && [ "$count" != "$csum_ns1" ]; then
+		extra_msg+=" ns1=$count"
+	fi
+	if [ -z "$count" ]; then
+		print_skip
+	elif { [ "$count" != $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 0 ]; } ||
+	     { [ "$count" -lt $csum_ns1 ] && [ $allow_multi_errors_ns1 -eq 1 ]; }; then
+		fail_test "got $count data checksum error[s] expected $csum_ns1"
+	else
+		print_ok
+	fi
+
+	print_check "checksum client"
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtDataCsumErr")
+	if [ -n "$count" ] && [ "$count" != "$csum_ns2" ]; then
+		extra_msg+=" ns2=$count"
+	fi
+	if [ -z "$count" ]; then
+		print_skip
+	elif { [ "$count" != $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 0 ]; } ||
+	     { [ "$count" -lt $csum_ns2 ] && [ $allow_multi_errors_ns2 -eq 1 ]; }; then
+		fail_test "got $count data checksum error[s] expected $csum_ns2"
+	else
+		print_ok
+	fi
+
+	print_info "$extra_msg"
+}
+
+chk_fail_nr()
+{
+	local fail_tx=$1
+	local fail_rx=$2
+	local ns_invert=${3:-""}
+	local count
+	local ns_tx=$ns1
+	local ns_rx=$ns2
+	local tx="server"
+	local rx="client"
+	local extra_msg=""
+	local allow_tx_lost=0
+	local allow_rx_lost=0
+
+	if [[ $ns_invert = "invert" ]]; then
+		ns_tx=$ns2
+		ns_rx=$ns1
+		tx="client"
+		rx="server"
+	fi
+
+	if [[ "${fail_tx}" = "-"* ]]; then
+		allow_tx_lost=1
+		fail_tx=${fail_tx:1}
+	fi
+	if [[ "${fail_rx}" = "-"* ]]; then
+		allow_rx_lost=1
+		fail_rx=${fail_rx:1}
+	fi
+
+	print_check "fail tx ${tx}"
+	count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFailTx")
+	if [ -n "$count" ] && [ "$count" != "$fail_tx" ]; then
+		extra_msg+=" tx=$count"
+	fi
+	if [ -z "$count" ]; then
+		print_skip
+	elif { [ "$count" != "$fail_tx" ] && [ $allow_tx_lost -eq 0 ]; } ||
+	     { [ "$count" -gt "$fail_tx" ] && [ $allow_tx_lost -eq 1 ]; }; then
+		fail_test "got $count MP_FAIL[s] TX expected $fail_tx"
+	else
+		print_ok
+	fi
+
+	print_check "fail rx ${rx}"
+	count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFailRx")
+	if [ -n "$count" ] && [ "$count" != "$fail_rx" ]; then
+		extra_msg+=" rx=$count"
+	fi
+	if [ -z "$count" ]; then
+		print_skip
+	elif { [ "$count" != "$fail_rx" ] && [ $allow_rx_lost -eq 0 ]; } ||
+	     { [ "$count" -gt "$fail_rx" ] && [ $allow_rx_lost -eq 1 ]; }; then
+		fail_test "got $count MP_FAIL[s] RX expected $fail_rx"
+	else
+		print_ok
+	fi
+
+	print_info "$extra_msg"
+}
+
+chk_fclose_nr()
+{
+	local fclose_tx=$1
+	local fclose_rx=$2
+	local ns_invert=$3
+	local count
+	local ns_tx=$ns2
+	local ns_rx=$ns1
+	local tx="client"
+	local rx="server"
+
+	if [[ $ns_invert = "invert" ]]; then
+		ns_tx=$ns1
+		ns_rx=$ns2
+		tx="server"
+		rx="client"
+	fi
+
+	print_check "fast close tx ${tx}"
+	count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPFastcloseTx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$fclose_tx" ]; then
+		fail_test "got $count MP_FASTCLOSE[s] TX expected $fclose_tx"
+	else
+		print_ok
+	fi
+
+	print_check "fast close rx ${rx}"
+	count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPFastcloseRx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$fclose_rx" ]; then
+		fail_test "got $count MP_FASTCLOSE[s] RX expected $fclose_rx"
+	else
+		print_ok
+	fi
+}
+
+chk_rst_nr()
+{
+	local rst_tx=$1
+	local rst_rx=$2
+	local ns_invert=${3:-""}
+	local count
+	local ns_tx=$ns1
+	local ns_rx=$ns2
+	local tx="server"
+	local rx="client"
+
+	if [[ $ns_invert = "invert" ]]; then
+		ns_tx=$ns2
+		ns_rx=$ns1
+		tx="client"
+		rx="server"
+	fi
+
+	print_check "reset tx ${tx}"
+	count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPRstTx")
+	if [ -z "$count" ]; then
+		print_skip
+	# accept more rst than expected except if we don't expect any
+	elif { [ $rst_tx -ne 0 ] && [ $count -lt $rst_tx ]; } ||
+	     { [ $rst_tx -eq 0 ] && [ $count -ne 0 ]; }; then
+		fail_test "got $count MP_RST[s] TX expected $rst_tx"
+	else
+		print_ok
+	fi
+
+	print_check "reset rx ${rx}"
+	count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPRstRx")
+	if [ -z "$count" ]; then
+		print_skip
+	# accept more rst than expected except if we don't expect any
+	elif { [ $rst_rx -ne 0 ] && [ $count -lt $rst_rx ]; } ||
+	     { [ $rst_rx -eq 0 ] && [ $count -ne 0 ]; }; then
+		fail_test "got $count MP_RST[s] RX expected $rst_rx"
+	else
+		print_ok
+	fi
+}
+
+chk_infi_nr()
+{
+	local infi_tx=$1
+	local infi_rx=$2
+	local count
+
+	print_check "infi tx client"
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtInfiniteMapTx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$infi_tx" ]; then
+		fail_test "got $count infinite map[s] TX expected $infi_tx"
+	else
+		print_ok
+	fi
+
+	print_check "infi rx server"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtInfiniteMapRx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$infi_rx" ]; then
+		fail_test "got $count infinite map[s] RX expected $infi_rx"
+	else
+		print_ok
+	fi
+}
+
+chk_join_tx_nr()
+{
+	local syn_tx=${join_syn_tx:-0}
+	local create=${join_create_err:-0}
+	local bind=${join_bind_err:-0}
+	local connect=${join_connect_err:-0}
+	local rc=${KSFT_PASS}
+	local count
+
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTx")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$syn_tx" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn tx"
+		fail_test "got $count JOIN[s] syn tx expected $syn_tx"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxCreatSkErr")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$create" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn tx create socket error"
+		fail_test "got $count JOIN[s] syn tx create socket error expected $create"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxBindErr")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$bind" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn tx bind error"
+		fail_test "got $count JOIN[s] syn tx bind error expected $bind"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynTxConnectErr")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$connect" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn tx connect error"
+		fail_test "got $count JOIN[s] syn tx connect error expected $connect"
+	fi
+
+	print_results "join Tx" ${rc}
+}
+
+chk_fallback_nr()
+{
+	local infinite_map_tx=${fb_infinite_map_tx:-0}
+	local dss_corruption=${fb_dss_corruption:-0}
+	local simult_conn=${fb_simult_conn:-0}
+	local mpc_passive=${fb_mpc_passive:-0}
+	local mpc_active=${fb_mpc_active:-0}
+	local mpc_data=${fb_mpc_data:-0}
+	local md5_sig=${fb_md5_sig:-0}
+	local dss=${fb_dss:-0}
+	local rc=${KSFT_PASS}
+	local ns=$1
+	local count
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtInfiniteMapTx")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$infinite_map_tx" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns infinite map tx fallback"
+		fail_test "got $count infinite map tx fallback[s] in $ns expected $infinite_map_tx"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtDSSCorruptionFallback")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$dss_corruption" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns dss corruption fallback"
+		fail_test "got $count dss corruption fallback[s] in $ns expected $dss_corruption"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtSimultConnectFallback")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$simult_conn" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns simult conn fallback"
+		fail_test "got $count simult conn fallback[s] in $ns expected $simult_conn"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtMPCapableFallbackACK")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$mpc_passive" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns mpc passive fallback"
+		fail_test "got $count mpc passive fallback[s] in $ns expected $mpc_passive"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtMPCapableFallbackSYNACK")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$mpc_active" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns mpc active fallback"
+		fail_test "got $count mpc active fallback[s] in $ns expected $mpc_active"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtMPCapableDataFallback")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$mpc_data" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns mpc data fallback"
+		fail_test "got $count mpc data fallback[s] in $ns expected $mpc_data"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtMD5SigFallback")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$md5_sig" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns MD5 Sig fallback"
+		fail_test "got $count MD5 Sig fallback[s] in $ns expected $md5_sig"
+	fi
+
+	count=$(mptcp_lib_get_counter ${!ns} "MPTcpExtDssFallback")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$dss" ]; then
+		rc=${KSFT_FAIL}
+		print_check "$ns dss fallback"
+		fail_test "got $count dss fallback[s] in $ns expected $dss"
+	fi
+
+	return $rc
+}
+
+chk_fallback_nr_all()
+{
+	local netns=("ns1" "ns2")
+	local fb_ns=("fb_ns1" "fb_ns2")
+	local rc=${KSFT_PASS}
+
+	for i in 0 1; do
+		if [ -n "${!fb_ns[i]}" ]; then
+			eval "${!fb_ns[i]}" \
+				chk_fallback_nr ${netns[i]} || rc=${?}
+		else
+			chk_fallback_nr ${netns[i]} || rc=${?}
+		fi
+	done
+
+	if [ "${rc}" != "${KSFT_PASS}" ]; then
+		print_results "fallback" ${rc}
+	fi
+}
+
+chk_join_nr()
+{
+	local syn_nr=$1
+	local syn_ack_nr=$2
+	local ack_nr=$3
+	local syn_rej=${join_syn_rej:-0}
+	local csum_ns1=${join_csum_ns1:-0}
+	local csum_ns2=${join_csum_ns2:-0}
+	local fail_nr=${join_fail_nr:-0}
+	local rst_nr=${join_rst_nr:-0}
+	local infi_nr=${join_infi_nr:-0}
+	local corrupted_pkts=${join_corrupted_pkts:-0}
+	local rc=${KSFT_PASS}
+	local count
+	local with_cookie
+
+	if [ "${corrupted_pkts}" -gt 0 ]; then
+		print_info "${corrupted_pkts} corrupted pkts"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynRx")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$syn_nr" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn rx"
+		fail_test "got $count JOIN[s] syn rx expected $syn_nr"
+	fi
+
+	with_cookie=$(ip netns exec $ns2 sysctl -n net.ipv4.tcp_syncookies)
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckRx")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$syn_ack_nr" ]; then
+		# simult connections exceeding the limit with cookie enabled could go up to
+		# synack validation as the conn limit can be enforced reliably only after
+		# the subflow creation
+		if [ "$with_cookie" != 2 ] || [ "$count" -le "$syn_ack_nr" ] || [ "$count" -gt "$syn_nr" ]; then
+			rc=${KSFT_FAIL}
+			print_check "synack rx"
+			fail_test "got $count JOIN[s] synack rx expected $syn_ack_nr"
+		fi
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckHMacFailure")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "0" ]; then
+		rc=${KSFT_FAIL}
+		print_check "synack HMAC"
+		fail_test "got $count JOIN[s] synack HMAC failure expected 0"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinAckRx")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$ack_nr" ]; then
+		rc=${KSFT_FAIL}
+		print_check "ack rx"
+		fail_test "got $count JOIN[s] ack rx expected $ack_nr"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinAckHMacFailure")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "0" ]; then
+		rc=${KSFT_FAIL}
+		print_check "ack HMAC"
+		fail_test "got $count JOIN[s] ack HMAC failure expected 0"
+	fi
+
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinRejected")
+	if [ -z "$count" ]; then
+		rc=${KSFT_SKIP}
+	elif [ "$count" != "$syn_rej" ]; then
+		rc=${KSFT_FAIL}
+		print_check "syn rejected"
+		fail_test "got $count JOIN[s] syn rejected expected $syn_rej"
+	fi
+
+	print_results "join Rx" ${rc}
+
+	join_syn_tx="${join_syn_tx:-${syn_nr}}" \
+		chk_join_tx_nr
+
+	chk_fallback_nr_all
+
+	if $validate_checksum; then
+		chk_csum_nr $csum_ns1 $csum_ns2
+		chk_fail_nr $fail_nr $fail_nr
+		chk_rst_nr $rst_nr $rst_nr
+		chk_infi_nr $infi_nr $infi_nr
+	fi
+}
+
+# a negative value for 'stale_max' means no upper bound:
+# for bidirectional transfer, if one peer sleep for a while
+# - as these tests do - we can have a quite high number of
+# stale/recover conversions, proportional to
+# sleep duration/ MPTCP-level RTX interval.
+chk_stale_nr()
+{
+	local ns=$1
+	local stale_min=$2
+	local stale_max=$3
+	local stale_delta=$4
+	local dump_stats
+	local stale_nr
+	local recover_nr
+
+	print_check "stale"
+
+	stale_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowStale")
+	recover_nr=$(mptcp_lib_get_counter ${ns} "MPTcpExtSubflowRecover")
+	if [ -z "$stale_nr" ] || [ -z "$recover_nr" ]; then
+		print_skip
+	elif [ $stale_nr -lt $stale_min ] ||
+	   { [ $stale_max -gt 0 ] && [ $stale_nr -gt $stale_max ]; } ||
+	   [ $((stale_nr - recover_nr)) -ne $stale_delta ]; then
+		fail_test "got $stale_nr stale[s] $recover_nr recover[s], " \
+		     " expected stale in range [$stale_min..$stale_max]," \
+		     " stale-recover delta $stale_delta"
+		dump_stats=1
+	else
+		print_ok
+	fi
+
+	if [ "${dump_stats}" = 1 ]; then
+		echo $ns stats
+		ip netns exec $ns ip -s link show
+		ip netns exec $ns nstat -as | grep MPTcp
+	fi
+}
+
+chk_add_nr()
+{
+	local add_nr=$1
+	local echo_nr=$2
+	local port_nr=${3:-0}
+	local ns_invert=${4:-""}
+	local syn_nr=$port_nr
+	local syn_ack_nr=$port_nr
+	local ack_nr=$port_nr
+	local mis_syn_nr=0
+	local mis_ack_nr=0
+	local ns_tx=$ns1
+	local ns_rx=$ns2
+	local tx=""
+	local rx=""
+	local count
+
+	if [[ $ns_invert = "invert" ]]; then
+		ns_tx=$ns2
+		ns_rx=$ns1
+		tx=" client"
+		rx=" server"
+	fi
+
+	print_check "add addr rx${rx}"
+	count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtAddAddr")
+	if [ -z "$count" ]; then
+		print_skip
+	# Tolerate more ADD_ADDR then expected (if any), due to retransmissions
+	elif [ "$count" != "$add_nr" ] &&
+	     { [ "$add_nr" -eq 0 ] || [ "$count" -lt "$add_nr" ]; }; then
+		fail_test "got $count ADD_ADDR[s] expected $add_nr"
+	else
+		print_ok
+	fi
+
+	print_check "add addr echo rx${tx}"
+	count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtEchoAdd")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$echo_nr" ]; then
+		fail_test "got $count ADD_ADDR echo[s] expected $echo_nr"
+	else
+		print_ok
+	fi
+
+	if [ $port_nr -gt 0 ]; then
+		print_check "add addr rx with port${rx}"
+		count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtPortAdd")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$port_nr" ]; then
+			fail_test "got $count ADD_ADDR[s] with a port-number expected $port_nr"
+		else
+			print_ok
+		fi
+
+		print_check "syn rx port${tx}"
+		count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortSynRx")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$syn_nr" ]; then
+			fail_test "got $count JOIN[s] syn with a different \
+				   port-number expected $syn_nr"
+		else
+			print_ok
+		fi
+
+		print_check "synack rx port${rx}"
+		count=$(mptcp_lib_get_counter ${ns_rx} "MPTcpExtMPJoinPortSynAckRx")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$syn_ack_nr" ]; then
+			fail_test "got $count JOIN[s] synack with a different \
+				   port-number expected $syn_ack_nr"
+		else
+			print_ok
+		fi
+
+		print_check "ack rx port${tx}"
+		count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMPJoinPortAckRx")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$ack_nr" ]; then
+			fail_test "got $count JOIN[s] ack with a different \
+				   port-number expected $ack_nr"
+		else
+			print_ok
+		fi
+
+		print_check "syn rx port mismatch${tx}"
+		count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortSynRx")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$mis_syn_nr" ]; then
+			fail_test "got $count JOIN[s] syn with a mismatched \
+				   port-number expected $mis_syn_nr"
+		else
+			print_ok
+		fi
+
+		print_check "ack rx port mismatch${tx}"
+		count=$(mptcp_lib_get_counter ${ns_tx} "MPTcpExtMismatchPortAckRx")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$mis_ack_nr" ]; then
+			fail_test "got $count JOIN[s] ack with a mismatched \
+				   port-number expected $mis_ack_nr"
+		else
+			print_ok
+		fi
+	fi
+}
+
+chk_add_tx_nr()
+{
+	local add_tx_nr=$1
+	local echo_tx_nr=$2
+	local count
+
+	print_check "add addr tx"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtAddAddrTx")
+	if [ -z "$count" ]; then
+		print_skip
+	# Tolerate more ADD_ADDR then expected (if any), due to retransmissions
+	elif [ "$count" != "$add_tx_nr" ] &&
+	     { [ "$add_tx_nr" -eq 0 ] || [ "$count" -lt "$add_tx_nr" ]; }; then
+		fail_test "got $count ADD_ADDR[s] TX, expected $add_tx_nr"
+	else
+		print_ok
+	fi
+
+	print_check "add addr echo tx"
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtEchoAddTx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$echo_tx_nr" ]; then
+		fail_test "got $count ADD_ADDR echo[s] TX, expected $echo_tx_nr"
+	else
+		print_ok
+	fi
+}
+
+chk_rm_nr()
+{
+	local rm_addr_nr=$1
+	local rm_subflow_nr=$2
+	local invert
+	local simult
+	local count
+	local addr_ns=$ns1
+	local subflow_ns=$ns2
+	local addr="server"
+	local subflow="client"
+	local extra_msg=""
+
+	shift 2
+	while [ -n "$1" ]; do
+		[ "$1" = "invert" ] && invert=true
+		[ "$1" = "simult" ] && simult=true
+		shift
+	done
+
+	if [ "$invert" = "true" ]; then
+		addr_ns=$ns2
+		subflow_ns=$ns1
+		addr="client"
+		subflow="server"
+	fi
+
+	print_check "rm addr rx ${addr}"
+	count=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmAddr")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$rm_addr_nr" ]; then
+		fail_test "got $count RM_ADDR[s] expected $rm_addr_nr"
+	else
+		print_ok
+	fi
+
+	print_check "rm subflow ${subflow}"
+	count=$(mptcp_lib_get_counter ${subflow_ns} "MPTcpExtRmSubflow")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ -n "$simult" ]; then
+		local cnt suffix
+
+		cnt=$(mptcp_lib_get_counter ${addr_ns} "MPTcpExtRmSubflow")
+
+		# in case of simult flush, the subflow removal count on each side is
+		# unreliable
+		count=$((count + cnt))
+		if [ "$count" != "$rm_subflow_nr" ]; then
+			suffix="$count in [$rm_subflow_nr:$((rm_subflow_nr*2))]"
+			extra_msg="simult"
+		fi
+		if [ $count -ge "$rm_subflow_nr" ] && \
+		   [ "$count" -le "$((rm_subflow_nr *2 ))" ]; then
+			print_ok "$suffix"
+		else
+			fail_test "got $count RM_SUBFLOW[s] expected in range [$rm_subflow_nr:$((rm_subflow_nr*2))]"
+		fi
+	elif [ "$count" != "$rm_subflow_nr" ]; then
+		fail_test "got $count RM_SUBFLOW[s] expected $rm_subflow_nr"
+	else
+		print_ok
+	fi
+
+	print_info "$extra_msg"
+}
+
+chk_rm_tx_nr()
+{
+	local rm_addr_tx_nr=$1
+
+	print_check "rm addr tx client"
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtRmAddrTx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$rm_addr_tx_nr" ]; then
+		fail_test "got $count RM_ADDR[s] expected $rm_addr_tx_nr"
+	else
+		print_ok
+	fi
+}
+
+chk_prio_nr()
+{
+	local mp_prio_nr_tx=$1
+	local mp_prio_nr_rx=$2
+	local mpj_syn=$3
+	local mpj_syn_ack=$4
+	local count
+
+	print_check "mp_prio tx server"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioTx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$mp_prio_nr_tx" ]; then
+		fail_test "got $count MP_PRIO[s] TX expected $mp_prio_nr_tx"
+	else
+		print_ok
+	fi
+
+	print_check "mp_prio rx client"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPPrioRx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$mp_prio_nr_rx" ]; then
+		fail_test "got $count MP_PRIO[s] RX expected $mp_prio_nr_rx"
+	else
+		print_ok
+	fi
+
+	print_check "syn backup"
+	count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinSynBackupRx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$mpj_syn" ]; then
+		fail_test "got $count JOIN[s] syn with Backup expected $mpj_syn"
+	else
+		print_ok
+	fi
+
+	print_check "synack backup"
+	count=$(mptcp_lib_get_counter ${ns2} "MPTcpExtMPJoinSynAckBackupRx")
+	if [ -z "$count" ]; then
+		print_skip
+	elif [ "$count" != "$mpj_syn_ack" ]; then
+		fail_test "got $count JOIN[s] synack with Backup expected $mpj_syn_ack"
+	else
+		print_ok
+	fi
+}
+
+chk_subflow_nr()
+{
+	local msg="$1"
+	local subflow_nr=$2
+	local cnt1
+	local cnt2
+	local dump_stats
+
+	print_check "${msg}"
+
+	cnt1=$(ss -N $ns1 -tOni | grep -c token)
+	cnt2=$(ss -N $ns2 -tOni | grep -c token)
+	if [ "$cnt1" != "$subflow_nr" ] || [ "$cnt2" != "$subflow_nr" ]; then
+		fail_test "got $cnt1:$cnt2 subflows expected $subflow_nr"
+		dump_stats=1
+	else
+		print_ok
+	fi
+
+	if [ "${dump_stats}" = 1 ]; then
+		ss -N $ns1 -tOni
+		ss -N $ns1 -tOni | grep token
+		ip -n $ns1 mptcp endpoint
+	fi
+}
+
+chk_mptcp_info()
+{
+	local info1=$1
+	local exp1=$2
+	local info2=$3
+	local exp2=$4
+	local cnt1
+	local cnt2
+	local dump_stats
+
+	print_check "mptcp_info ${info1:0:15}=$exp1:$exp2"
+
+	cnt1=$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value "$info1" "$info1")
+	cnt2=$(ss -N $ns2 -inmHM | mptcp_lib_get_info_value "$info2" "$info2")
+	# 'ss' only display active connections and counters that are not 0.
+	[ -z "$cnt1" ] && cnt1=0
+	[ -z "$cnt2" ] && cnt2=0
+
+	if [ "$cnt1" != "$exp1" ] || [ "$cnt2" != "$exp2" ]; then
+		fail_test "got $cnt1:$cnt2 $info1:$info2 expected $exp1:$exp2"
+		dump_stats=1
+	else
+		print_ok
+	fi
+
+	if [ "$dump_stats" = 1 ]; then
+		ss -N $ns1 -inmHM
+		ss -N $ns2 -inmHM
+	fi
+}
+
+# $1: subflows in ns1 ; $2: subflows in ns2
+# number of all subflows, including the initial subflow.
+chk_subflows_total()
+{
+	local cnt1
+	local cnt2
+	local info="subflows_total"
+	local dump_stats
+
+	# if subflows_total counter is supported, use it:
+	if [ -n "$(ss -N $ns1 -inmHM | mptcp_lib_get_info_value $info $info)" ]; then
+		chk_mptcp_info $info $1 $info $2
+		return
+	fi
+
+	print_check "$info $1:$2"
+
+	# if not, count the TCP connections that are in fact MPTCP subflows
+	cnt1=$(ss -N $ns1 -ti state established state syn-sent state syn-recv |
+	       grep -c tcp-ulp-mptcp)
+	cnt2=$(ss -N $ns2 -ti state established state syn-sent state syn-recv |
+	       grep -c tcp-ulp-mptcp)
+
+	if [ "$1" != "$cnt1" ] || [ "$2" != "$cnt2" ]; then
+		fail_test "got subflows $cnt1:$cnt2 expected $1:$2"
+		dump_stats=1
+	else
+		print_ok
+	fi
+
+	if [ "$dump_stats" = 1 ]; then
+		ss -N $ns1 -ti
+		ss -N $ns2 -ti
+	fi
+}
+
+chk_link_usage()
+{
+	local ns=$1
+	local link=$2
+	local out=$3
+	local expected_rate=$4
+
+	local tx_link tx_total
+	tx_link=$(ip netns exec $ns cat /sys/class/net/$link/statistics/tx_bytes)
+	tx_total=$(stat --format=%s $out)
+	local tx_rate=$((tx_link * 100 / tx_total))
+	local tolerance=5
+
+	print_check "link usage"
+	if [ $tx_rate -lt $((expected_rate - tolerance)) ] || \
+	   [ $tx_rate -gt $((expected_rate + tolerance)) ]; then
+		fail_test "got $tx_rate% usage, expected $expected_rate%"
+	else
+		print_ok
+	fi
+}
+
+wait_attempt_fail()
+{
+	local timeout_ms=$((timeout_poll * 1000))
+	local time=0
+	local ns=$1
+
+	while [ $time -lt $timeout_ms ]; do
+		local cnt
+
+		cnt=$(mptcp_lib_get_counter ${ns} "TcpAttemptFails")
+
+		[ "$cnt" = 1 ] && return 1
+		time=$((time + 100))
+		sleep 0.1
+	done
+	return 1
+}
+
+set_userspace_pm()
+{
+	local ns=$1
+
+	ip netns exec $ns sysctl -q net.mptcp.pm_type=1
+}
+
+subflows_tests()
+{
+	if reset "no JOIN"; then
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# subflow limited by client
+	if reset "single subflow, limited by client"; then
+		pm_nl_set_limits $ns1 0 0
+		pm_nl_set_limits $ns2 0 0
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# subflow limited by server
+	if reset "single subflow, limited by server"; then
+		pm_nl_set_limits $ns1 0 0
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		join_syn_rej=1 \
+			chk_join_nr 1 1 0
+	fi
+
+	# subflow
+	if reset "single subflow"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+
+	# multiple subflows
+	if reset "multiple subflows"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+	fi
+
+	# multiple subflows limited by server
+	if reset "multiple subflows, limited by server"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		join_syn_rej=1 \
+			chk_join_nr 2 2 1
+	fi
+
+	# single subflow, dev
+	if reset "single subflow, dev"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow dev ns2eth3
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+}
+
+subflows_error_tests()
+{
+	# If a single subflow is configured, and matches the MPC src
+	# address, no additional subflow should be created
+	if reset "no MPC reuse with single endpoint"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.12.2 flags subflow
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_bind_err=1 \
+			chk_join_nr 0 0 0
+	fi
+
+	# multiple subflows, with subflow creation error
+	if reset_with_tcp_filter "multi subflows, with failing subflow" ns1 10.0.3.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=2 \
+			chk_join_nr 1 1 1
+	fi
+
+	# multiple subflows, with subflow timeout on MPJ
+	if reset_with_tcp_filter "multi subflows, with subflow timeout" ns1 10.0.3.2 DROP &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=2 \
+			chk_join_nr 1 1 1
+	fi
+
+	# multiple subflows, check that the endpoint corresponding to
+	# closed subflow (due to reset) is not reused if additional
+	# subflows are added later
+	if reset_with_tcp_filter "multi subflows, fair usage on close" ns1 10.0.3.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1 &
+
+		# mpj subflow will be in TW after the reset
+		wait_attempt_fail $ns2
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		wait
+
+		# additional subflow could be created only if the PM select
+		# the later endpoint, skipping the already used one
+		join_syn_tx=2 \
+			chk_join_nr 1 1 1
+	fi
+}
+
+signal_address_tests()
+{
+	# add_address, unused
+	if reset "unused signal address"; then
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_add_tx_nr 1 1
+		chk_add_nr 1 1
+	fi
+
+	# accept and use add_addr
+	if reset "signal address"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# accept and use add_addr with an additional subflow
+	# note: signal address in server ns and local addresses in client ns must
+	# belong to different subnets or one of the listed local address could be
+	# used for 'add_addr' subflow
+	if reset "subflow and signal"; then
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+	fi
+
+	# uncommon: subflow and signal flags on the same endpoint
+	# or because the user wrongly picked both, but still expects the client
+	# to create additional subflows
+	if reset "subflow and signal together"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags signal,subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1 0 invert  # only initiated by ns2
+		chk_add_nr 0 0 0         # none initiated by ns1
+		chk_rst_nr 0 0 invert    # no RST sent by the client
+		chk_rst_nr 0 0           # no RST sent by the server
+	fi
+
+	# accept and use add_addr with additional subflows
+	if reset "multiple subflows and signal"; then
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+	fi
+
+	# signal addresses
+	if reset "signal addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
+		pm_nl_set_limits $ns2 3 3
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 3 3
+	fi
+
+	# signal invalid addresses
+	if reset "signal invalid addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
+		pm_nl_set_limits $ns2 3 3
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=3 \
+			chk_join_nr 1 1 1
+		chk_add_nr 3 3
+	fi
+
+	# signal addresses race test
+	if reset "signal addresses race test"; then
+		pm_nl_set_limits $ns1 4 4
+		pm_nl_set_limits $ns2 4 4
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags signal
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags signal
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags signal
+
+		# the peer could possibly miss some addr notification, allow retransmission
+		ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+
+		# It is not directly linked to the commit introducing this
+		# symbol but for the parent one which is linked anyway.
+		if ! mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+			chk_join_nr 3 3 2
+			chk_add_nr 4 4
+		else
+			chk_join_nr 3 3 3
+			# the server will not signal the address terminating
+			# the MPC subflow
+			chk_add_nr 3 3
+		fi
+	fi
+}
+
+laminar_endp_tests()
+{
+	# no laminar endpoints: routing rules are used
+	if reset_with_tcp_filter "without a laminar endpoint" ns1 10.0.2.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=1 \
+			chk_join_nr 0 0 0
+		chk_add_nr 1 1
+	fi
+
+	# laminar endpoints: this endpoint is used
+	if reset_with_tcp_filter "with a laminar endpoint" ns1 10.0.2.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags laminar
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# laminar endpoints: these endpoints are used
+	if reset_with_tcp_filter "with multiple laminar endpoints" ns1 10.0.2.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_add_endpoint $ns2 dead:beef:3::2 flags laminar
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags laminar
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags laminar
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 2 2
+	fi
+
+	# laminar endpoints: only one endpoint is used
+	if reset_with_tcp_filter "single laminar endpoint" ns1 10.0.2.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags laminar
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 2 2
+	fi
+
+	# laminar endpoints: subflow and laminar flags
+	if reset_with_tcp_filter "sublow + laminar endpoints" ns1 10.0.2.2 REJECT &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		pm_nl_set_limits $ns1 0 4
+		pm_nl_set_limits $ns2 2 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,laminar
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,laminar
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+}
+
+link_failure_tests()
+{
+	# accept and use add_addr with additional subflows and link loss
+	if reset "multiple flows, signal, link failure"; then
+		# without any b/w limit each veth could spool the packets and get
+		# them acked at xmit time, so that the corresponding subflow will
+		# have almost always no outstanding pkts, the scheduler will pick
+		# always the first subflow and we will have hard time testing
+		# active backup and link switch-over.
+		# Let's set some arbitrary (low) virtual link limits.
+		init_shapers
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
+		test_linkfail=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+		chk_stale_nr $ns2 1 5 1
+	fi
+
+	# accept and use add_addr with additional subflows and link loss
+	# for bidirectional transfer
+	if reset "multi flows, signal, bidi, link fail"; then
+		init_shapers
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 dev ns2eth4 flags subflow
+		test_linkfail=2 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+		chk_stale_nr $ns2 1 -1 1
+	fi
+
+	# 2 subflows plus 1 backup subflow with a lossy link, backup
+	# will never be used
+	if reset "backup subflow unused, link failure"; then
+		init_shapers
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
+		FAILING_LINKS="1" test_linkfail=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+		chk_link_usage $ns2 ns2eth3 $cinsent 0
+	fi
+
+	# 2 lossy links after half transfer, backup will get half of
+	# the traffic
+	if reset "backup flow used, multi links fail"; then
+		init_shapers
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
+		FAILING_LINKS="1 2" test_linkfail=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+		chk_stale_nr $ns2 2 4 2
+		chk_link_usage $ns2 ns2eth3 $cinsent 50
+	fi
+
+	# use a backup subflow with the first subflow on a lossy link
+	# for bidirectional transfer
+	if reset "backup flow used, bidi, link failure"; then
+		init_shapers
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 dev ns1eth2 flags signal
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 dev ns2eth3 flags subflow,backup
+		FAILING_LINKS="1 2" test_linkfail=2 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+		chk_stale_nr $ns2 1 -1 2
+		chk_link_usage $ns2 ns2eth3 $cinsent 50
+	fi
+}
+
+add_addr_timeout_tests()
+{
+	# add_addr timeout
+	if reset_with_add_addr_timeout "signal address, ADD_ADDR timeout"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_tx_nr 4 4
+		chk_add_nr 4 0
+	fi
+
+	# add_addr timeout IPv6
+	if reset_with_add_addr_timeout "signal address, ADD_ADDR6 timeout" 6; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 1 1 1
+		chk_add_nr 4 0
+	fi
+
+	# signal addresses timeout
+	if reset_with_add_addr_timeout "signal addresses, ADD_ADDR timeout"; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_set_limits $ns2 2 2
+		speed=10 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 8 0
+	fi
+
+	# signal invalid addresses timeout
+	if reset_with_add_addr_timeout "invalid address, ADD_ADDR timeout"; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
+		pm_nl_set_limits $ns2 2 2
+		speed=10 \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=2 \
+			chk_join_nr 1 1 1
+		chk_add_nr 8 0
+	fi
+}
+
+remove_tests()
+{
+	# single subflow, remove
+	if reset "remove single subflow"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		addr_nr_ns2=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_rm_tx_nr 1
+		chk_rm_nr 1 1
+		chk_rst_nr 0 0
+	fi
+
+	# multiple subflows, remove
+	if reset "remove multiple subflows"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		addr_nr_ns2=-2 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_rm_nr 2 2
+		chk_rst_nr 0 0
+	fi
+
+	# single address, remove
+	if reset "remove single address"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+		pm_nl_set_limits $ns2 1 1
+		addr_nr_ns1=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_rm_nr 1 1 invert
+		chk_rst_nr 0 0
+	fi
+
+	# subflow and signal, remove
+	if reset "remove subflow and signal"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+		chk_rm_nr 1 1
+		chk_rst_nr 0 0
+	fi
+
+	# subflows and signal, remove
+	if reset "remove subflows and signal"; then
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+		addr_nr_ns1=-1 addr_nr_ns2=-2 speed=10 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+		chk_rm_nr 2 2
+		chk_rst_nr 0 0
+	fi
+
+	# addresses remove
+	if reset "remove addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
+		pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
+		pm_nl_set_limits $ns2 3 3
+		addr_nr_ns1=-3 speed=10 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 3 3
+		chk_rm_nr 3 3 invert
+		chk_rst_nr 0 0
+	fi
+
+	# invalid addresses remove
+	if reset "remove invalid addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
+		# broadcast IP: no packet for this address will be received on ns1
+		pm_nl_add_endpoint $ns1 224.0.0.1 flags signal,backup
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
+		pm_nl_set_limits $ns2 2 2
+		addr_nr_ns1=-3 speed=10 \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=2 join_connect_err=1 \
+			chk_join_nr 1 1 1
+		chk_add_nr 3 3
+		chk_rm_nr 3 1 invert
+		chk_rst_nr 0 0
+	fi
+
+	# subflows and signal, flush
+	if reset "flush subflows and signal"; then
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+		addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+		chk_rm_nr 1 3 invert simult
+		chk_rst_nr 0 0
+	fi
+
+	# subflows flush
+	if reset "flush subflows"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_set_limits $ns2 3 3
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup id 150
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
+		addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+
+		if mptcp_lib_kversion_ge 5.18; then
+			chk_rm_tx_nr 0
+			chk_rm_nr 0 3 simult
+		else
+			chk_rm_nr 3 3
+		fi
+		chk_rst_nr 0 0
+	fi
+
+	# addresses flush
+	if reset "flush addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
+		pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
+		pm_nl_set_limits $ns2 3 3
+		addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 3 3
+		chk_rm_nr 3 3 invert simult
+		chk_rst_nr 0 0
+	fi
+
+	# invalid addresses flush
+	if reset "flush invalid addresses"; then
+		pm_nl_set_limits $ns1 3 3
+		pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
+		pm_nl_add_endpoint $ns1 10.0.14.1 flags signal,backup
+		pm_nl_set_limits $ns2 3 3
+		addr_nr_ns1=-8 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=3 \
+			chk_join_nr 1 1 1
+		chk_add_nr 3 3
+		chk_rm_nr 3 1 invert
+		chk_rst_nr 0 0
+	fi
+
+	# remove id 0 subflow
+	if reset "remove id 0 subflow"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		addr_nr_ns2=-9 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_rm_nr 1 1
+		chk_rst_nr 0 0
+	fi
+
+	# remove id 0 address
+	if reset "remove id 0 address"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns2 1 1
+		addr_nr_ns1=-9 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_rm_nr 1 1 invert
+		chk_rst_nr 0 0 invert
+	fi
+}
+
+add_tests()
+{
+	# add single subflow
+	if reset "add single subflow"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		addr_nr_ns2=1 speed=slow cestab_ns2=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_cestab_nr $ns2 0
+	fi
+
+	# add signal address
+	if reset "add signal address"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		addr_nr_ns1=1 speed=slow cestab_ns1=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_cestab_nr $ns1 0
+	fi
+
+	# add multiple subflows
+	if reset "add multiple subflows"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		addr_nr_ns2=2 speed=slow cestab_ns2=1 \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_cestab_nr $ns2 0
+	fi
+
+	# add multiple subflows IPv6
+	if reset "add multiple subflows IPv6"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		addr_nr_ns2=2 speed=slow cestab_ns2=1 \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 2 2 2
+		chk_cestab_nr $ns2 0
+	fi
+
+	# add multiple addresses IPv6
+	if reset "add multiple addresses IPv6"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		addr_nr_ns1=2 speed=slow cestab_ns1=1 \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 2 2 2
+		chk_add_nr 2 2
+		chk_cestab_nr $ns1 0
+	fi
+}
+
+ipv6_tests()
+{
+	# subflow IPv6
+	if reset "single subflow IPv6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 1 1 1
+	fi
+
+	# add_address, unused IPv6
+	if reset "unused signal address IPv6"; then
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 0 0 0
+		chk_add_nr 1 1
+	fi
+
+	# signal address IPv6
+	if reset "single address IPv6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		pm_nl_set_limits $ns2 1 1
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# single address IPv6, remove
+	if reset "remove single address IPv6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		pm_nl_set_limits $ns2 1 1
+		addr_nr_ns1=-1 speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_rm_nr 1 1 invert
+	fi
+
+	# subflow and signal IPv6, remove
+	if reset "remove subflow and signal IPv6"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 dead:beef:3::2 dev ns2eth3 flags subflow
+		addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+		chk_rm_nr 1 1
+	fi
+}
+
+v4mapped_tests()
+{
+	# subflow IPv4-mapped to IPv4-mapped
+	if reset "single subflow IPv4-mapped"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
+		run_tests $ns1 $ns2 "::ffff:10.0.1.1"
+		chk_join_nr 1 1 1
+	fi
+
+	# signal address IPv4-mapped with IPv4-mapped sk
+	if reset "signal address IPv4-mapped"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
+		run_tests $ns1 $ns2 "::ffff:10.0.1.1"
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# subflow v4-map-v6
+	if reset "single subflow v4-map-v6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 "::ffff:10.0.1.1"
+		chk_join_nr 1 1 1
+	fi
+
+	# signal address v4-map-v6
+	if reset "signal address v4-map-v6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 "::ffff:10.0.1.1"
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# subflow v6-map-v4
+	if reset "single subflow v6-map-v4"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 "::ffff:10.0.3.2" flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+
+	# signal address v6-map-v4
+	if reset "signal address v6-map-v4"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 "::ffff:10.0.2.1" flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# no subflow IPv6 to v4 address
+	if reset "no JOIN with diff families v4-v6"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# no subflow IPv6 to v4 address even if v6 has a valid v4 at the end
+	if reset "no JOIN with diff families v4-v6-2"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 dead:beef:2::10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# no subflow IPv4 to v6 address, no need to slow down too then
+	if reset "no JOIN with diff families v6-v4"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 0 0 0
+	fi
+}
+
+mixed_tests()
+{
+	if reset "IPv4 sockets do not use IPv6 addresses" &&
+	   continue_if mptcp_lib_kversion_ge 6.3; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# Need an IPv6 mptcp socket to allow subflows of both families
+	if reset "simult IPv4 and IPv6 subflows" &&
+	   continue_if mptcp_lib_kversion_ge 6.3; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:2::1
+		chk_join_nr 1 1 1
+	fi
+
+	# cross families subflows will not be created even in fullmesh mode
+	if reset "simult IPv4 and IPv6 subflows, fullmesh 1x1" &&
+	   continue_if mptcp_lib_kversion_ge 6.3; then
+		pm_nl_set_limits $ns1 0 4
+		pm_nl_set_limits $ns2 1 4
+		pm_nl_add_endpoint $ns2 dead:beef:2::2 flags subflow,fullmesh
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags signal
+		speed=slow \
+			run_tests $ns1 $ns2 dead:beef:2::1
+		if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_fullmesh_max$"; then
+			chk_join_nr 0 0 0
+		else
+			chk_join_nr 1 1 1
+		fi
+	fi
+
+	# fullmesh still tries to create all the possibly subflows with
+	# matching family
+	if reset "simult IPv4 and IPv6 subflows, fullmesh 2x2" &&
+	   continue_if mptcp_lib_kversion_ge 6.3; then
+		pm_nl_set_limits $ns1 0 4
+		pm_nl_set_limits $ns2 2 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		fullmesh=1 speed=slow \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 4 4 4
+	fi
+}
+
+backup_tests()
+{
+	# single subflow, backup
+	if reset "single subflow, backup" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
+		sflags=nobackup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_prio_nr 0 1 1 0
+	fi
+
+	# single address, backup
+	if reset "single address, backup" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
+		pm_nl_set_limits $ns2 1 1
+		sflags=nobackup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_prio_nr 1 0 0 1
+	fi
+
+	# single address, switch to backup
+	if reset "single address, switch to backup" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns2 1 1
+		sflags=backup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_prio_nr 1 1 0 0
+	fi
+
+	# single address with port, backup
+	if reset "single address with port, backup" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup port 10100
+		pm_nl_set_limits $ns2 1 1
+		sflags=nobackup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_prio_nr 1 0 0 1
+	fi
+
+	if reset "mpc backup" &&
+	   continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_prio_nr 0 1 0 0
+	fi
+
+	if reset "mpc backup both sides" &&
+	   continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags signal,backup
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
+
+		# 10.0.2.2 (non-backup) -> 10.0.1.1 (backup)
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		# 10.0.1.2 (backup) -> 10.0.2.1 (non-backup)
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		ip -net "$ns2" route add 10.0.2.1 via 10.0.1.1 dev ns2eth1 # force this path
+
+		speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_prio_nr 1 1 1 1
+	fi
+
+	if reset "mpc switch to backup" &&
+	   continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
+		sflags=backup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_prio_nr 0 1 0 0
+	fi
+
+	if reset "mpc switch to backup both sides" &&
+	   continue_if mptcp_lib_kallsyms_doesnt_have "T mptcp_subflow_send_ack$"; then
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
+		sflags=backup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_prio_nr 1 1 0 0
+	fi
+}
+
+verify_listener_events()
+{
+	local e_type=$2
+	local e_saddr=$4
+	local e_sport=$5
+	local name
+
+	if [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CREATED ]; then
+		name="LISTENER_CREATED"
+	elif [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CLOSED ]; then
+		name="LISTENER_CLOSED "
+	else
+		name="$e_type"
+	fi
+
+	print_check "$name $e_saddr:$e_sport"
+
+	if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
+		print_skip "event not supported"
+		return
+	fi
+
+	if mptcp_lib_verify_listener_events "${@}"; then
+		print_ok
+		return 0
+	fi
+	fail_test
+}
+
+chk_mpc_endp_attempt()
+{
+	local retl=$1
+	local attempts=$2
+
+	print_check "Connect"
+
+	if [ ${retl} = 124 ]; then
+		fail_test "timeout on connect"
+	elif [ ${retl} = 0 ]; then
+		fail_test "unexpected successful connect"
+	else
+		print_ok
+
+		print_check "Attempts"
+		count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPCapableEndpAttempt")
+		if [ -z "$count" ]; then
+			print_skip
+		elif [ "$count" != "$attempts" ]; then
+			fail_test "got ${count} MPC attempt[s] on port-based endpoint, expected ${attempts}"
+		else
+			print_ok
+		fi
+	fi
+}
+
+add_addr_ports_tests()
+{
+	# signal address with port
+	if reset "signal address with port"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1 1
+	fi
+
+	# subflow and signal with port
+	if reset "subflow and signal with port"; then
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1 1
+	fi
+
+	# single address with port, remove
+	# pm listener events
+	if reset_with_events "remove single address with port"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_set_limits $ns2 1 1
+		addr_nr_ns1=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1 1
+		chk_rm_nr 1 1 invert
+
+		verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CREATED \
+				       $MPTCP_LIB_AF_INET 10.0.2.1 10100
+		verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CLOSED \
+				       $MPTCP_LIB_AF_INET 10.0.2.1 10100
+		kill_events_pids
+	fi
+
+	# subflow and signal with port, remove
+	if reset "remove subflow and signal with port"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1 1
+		chk_rm_nr 1 1
+	fi
+
+	# subflows and signal with port, flush
+	if reset "flush subflows and signal with port"; then
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
+		addr_nr_ns1=-8 addr_nr_ns2=-2 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+		chk_rm_nr 1 3 invert simult
+	fi
+
+	# multiple addresses with port
+	if reset "multiple addresses with port"; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10100
+		pm_nl_set_limits $ns2 2 2
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 2 2 2
+	fi
+
+	# multiple addresses with ports
+	if reset "multiple addresses with ports"; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
+		pm_nl_add_endpoint $ns1 10.0.3.1 flags signal port 10101
+		pm_nl_set_limits $ns2 2 2
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 2 2 2
+	fi
+
+	if reset "port-based signal endpoint must not accept mpc"; then
+		local port retl count
+		port=$(get_port)
+
+		cond_start_capture ${ns1}
+		pm_nl_add_endpoint ${ns1} 10.0.2.1 flags signal port ${port}
+		mptcp_lib_wait_local_port_listen ${ns1} ${port}
+
+		timeout 1 ip netns exec ${ns2} \
+			./mptcp_connect -t ${timeout_poll} -p $port -s MPTCP 10.0.2.1 >/dev/null 2>&1
+		retl=$?
+		cond_stop_capture
+
+		chk_mpc_endp_attempt ${retl} 1
+	fi
+}
+
+bind_tests()
+{
+	# bind to one address should not allow extra subflows to other addresses
+	if reset "bind main address v4, no join v4"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		bind_addr="10.0.1.1" \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_tx=1 \
+			chk_join_nr 0 0 0
+		chk_add_nr 1 1
+	fi
+
+	# bind to one address should not allow extra subflows to other addresses
+	if reset "bind main address v6, no join v6"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+		bind_addr="dead:beef:1::1" \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		join_syn_tx=1 \
+			chk_join_nr 0 0 0
+		chk_add_nr 1 1
+	fi
+
+	# multiple binds to allow extra subflows to other addresses
+	if reset "multiple bind to allow joins v4"; then
+		local extra_bind
+
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+
+		# Launching another app listening on a different address
+		# Note: it could be a totally different app, e.g. nc, socat, ...
+		ip netns exec ${ns1} ./mptcp_connect -l -t -1 -p "$(get_port)" \
+			-s MPTCP 10.0.2.1 &
+		extra_bind=$!
+
+		bind_addr="10.0.1.1" \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+
+		kill ${extra_bind}
+	fi
+
+	# multiple binds to allow extra subflows to other addresses
+	if reset "multiple bind to allow joins v6"; then
+		local extra_bind
+
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal
+
+		# Launching another app listening on a different address
+		# Note: it could be a totally different app, e.g. nc, socat, ...
+		ip netns exec ${ns1} ./mptcp_connect -l -t -1 -p "$(get_port)" \
+			-s MPTCP dead:beef:2::1 &
+		extra_bind=$!
+
+		bind_addr="dead:beef:1::1" \
+			run_tests $ns1 $ns2 dead:beef:1::1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+
+		kill ${extra_bind}
+	fi
+
+	# multiple binds to allow extra subflows to other addresses: v6 LL case
+	if reset "multiple bind to allow joins v6 link-local routing"; then
+		local extra_bind ns1ll1 ns1ll2
+
+		ns1ll1="$(get_ll_addr $ns1 ns1eth1)"
+		ns1ll2="$(get_ll_addr $ns1 ns1eth2)"
+
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 "${ns1ll2}" flags signal
+
+		wait_ll_ready $ns1 # to be able to bind
+		wait_ll_ready $ns2 # also needed to bind on the client side
+		ip netns exec ${ns1} ./mptcp_connect -l -t -1 -p "$(get_port)" \
+			-s MPTCP "${ns1ll2}%ns1eth2" &
+		extra_bind=$!
+
+		bind_addr="${ns1ll1}%ns1eth1" \
+			run_tests $ns1 $ns2 "${ns1ll1}%ns2eth1"
+		# it is not possible to connect to the announced LL addr without
+		# specifying the outgoing interface.
+		join_connect_err=1 \
+			chk_join_nr 0 0 0
+		chk_add_nr 1 1
+
+		kill ${extra_bind}
+	fi
+
+	# multiple binds to allow extra subflows to v6 LL addresses: laminar
+	if reset "multiple bind to allow joins v6 link-local laminar" &&
+	   continue_if mptcp_lib_kallsyms_has "mptcp_pm_get_endp_laminar_max$"; then
+		local extra_bind ns1ll1 ns1ll2 ns2ll2
+
+		ns1ll1="$(get_ll_addr $ns1 ns1eth1)"
+		ns1ll2="$(get_ll_addr $ns1 ns1eth2)"
+		ns2ll2="$(get_ll_addr $ns2 ns2eth2)"
+
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 "${ns1ll2}" flags signal
+		pm_nl_add_endpoint $ns2 "${ns2ll2}" flags laminar dev ns2eth2
+
+		wait_ll_ready $ns1 # to be able to bind
+		wait_ll_ready $ns2 # also needed to bind on the client side
+		ip netns exec ${ns1} ./mptcp_connect -l -t -1 -p "$(get_port)" \
+			-s MPTCP "${ns1ll2}%ns1eth2" &
+		extra_bind=$!
+
+		bind_addr="${ns1ll1}%ns1eth1" \
+			run_tests $ns1 $ns2 "${ns1ll1}%ns2eth1"
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+
+		kill ${extra_bind}
+	fi
+}
+
+syncookies_tests()
+{
+	# single subflow, syncookies
+	if reset_with_cookies "single subflow with syn cookies"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+
+	# multiple subflows with syn cookies
+	if reset_with_cookies "multiple subflows with syn cookies"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+	fi
+
+	# multiple subflows limited by server
+	if reset_with_cookies "subflows limited by server w cookies"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		join_syn_rej=1 \
+			chk_join_nr 2 1 1
+	fi
+
+	# test signal address with cookies
+	if reset_with_cookies "signal address with syn cookies"; then
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# test cookie with subflow and signal
+	if reset_with_cookies "subflow and signal w cookies"; then
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 1 2
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_add_nr 1 1
+	fi
+
+	# accept and use add_addr with additional subflows
+	if reset_with_cookies "subflows and signal w. cookies"; then
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+	fi
+}
+
+checksum_tests()
+{
+	local checksum_enable
+	for checksum_enable in "0 0" "1 1" "0 1" "1 0"; do
+		# checksum test 0 0, 1 1, 0 1, 1 0
+		if reset_with_checksum ${checksum_enable}; then
+			pm_nl_set_limits $ns1 0 1
+			pm_nl_set_limits $ns2 0 1
+			run_tests $ns1 $ns2 10.0.1.1
+			chk_join_nr 0 0 0
+		fi
+	done
+}
+
+deny_join_id0_tests()
+{
+	# subflow allow join id0 ns1
+	if reset_with_allow_join_id0 "single subflow allow join id0 ns1" 1 0; then
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+
+	# subflow allow join id0 ns2
+	if reset_with_allow_join_id0 "single subflow allow join id0 ns2" 0 1; then
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# signal address allow join id0 ns1
+	# ADD_ADDRs are not affected by allow_join_id0 value.
+	if reset_with_allow_join_id0 "signal address allow join id0 ns1" 1 0; then
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# signal address allow join id0 ns2
+	# ADD_ADDRs are not affected by allow_join_id0 value.
+	if reset_with_allow_join_id0 "signal address allow join id0 ns2" 0 1; then
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+	fi
+
+	# subflow and address allow join id0 ns1
+	if reset_with_allow_join_id0 "subflow and address allow join id0 1" 1 0; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+	fi
+
+	# subflow and address allow join id0 ns2
+	if reset_with_allow_join_id0 "subflow and address allow join id0 2" 0 1; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 1 1 1
+	fi
+
+	# default limits, server deny join id 0 + signal
+	if reset_with_allow_join_id0 "default limits, server deny join id 0" 0 1; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+	fi
+}
+
+fullmesh_tests()
+{
+	# fullmesh 1
+	# 2 fullmesh addrs in ns2, added before the connection,
+	# 1 non-fullmesh addr in ns1, added during the connection.
+	if reset "fullmesh test 2x1"; then
+		pm_nl_set_limits $ns1 0 4
+		pm_nl_set_limits $ns2 1 4
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,fullmesh
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,fullmesh
+		addr_nr_ns1=1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 4 4 4
+		chk_add_nr 1 1
+	fi
+
+	# fullmesh 2
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 1 fullmesh addr in ns2, added during the connection.
+	if reset "fullmesh test 1x1"; then
+		pm_nl_set_limits $ns1 1 3
+		pm_nl_set_limits $ns2 1 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		if mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+			pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,fullmesh
+		fi
+		fullmesh=1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 3 3 3
+		chk_add_nr 1 1
+	fi
+
+	# fullmesh 3
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 2 fullmesh addrs in ns2, added during the connection.
+	if reset "fullmesh test 1x2"; then
+		pm_nl_set_limits $ns1 2 5
+		pm_nl_set_limits $ns2 1 5
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		fullmesh=2 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 5 5 5
+		chk_add_nr 1 1
+	fi
+
+	# fullmesh 4
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 2 fullmesh addrs in ns2, added during the connection,
+	# limit max_subflows to 4.
+	if reset "fullmesh test 1x2, limited"; then
+		pm_nl_set_limits $ns1 2 4
+		pm_nl_set_limits $ns2 1 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		fullmesh=2 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 4 4 4
+		chk_add_nr 1 1
+	fi
+
+	# set fullmesh flag
+	if reset "set fullmesh flag test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
+		pm_nl_set_limits $ns1 4 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
+		pm_nl_set_limits $ns2 4 4
+		addr_nr_ns2=1 sflags=fullmesh speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_rm_nr 0 1
+	fi
+
+	# set nofullmesh flag
+	if reset "set nofullmesh flag test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
+		pm_nl_set_limits $ns1 4 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow,fullmesh
+		pm_nl_set_limits $ns2 4 4
+		fullmesh=1 sflags=nofullmesh speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_rm_nr 0 1
+	fi
+
+	# set backup,fullmesh flags
+	if reset "set backup,fullmesh flags test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
+		pm_nl_set_limits $ns1 4 4
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags subflow
+		pm_nl_set_limits $ns2 4 4
+		addr_nr_ns2=1 sflags=backup,fullmesh speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_prio_nr 0 1 1 0
+		chk_rm_nr 0 1
+	fi
+
+	# set nobackup,nofullmesh flags
+	if reset "set nobackup,nofullmesh flags test" &&
+	   continue_if mptcp_lib_kversion_ge 5.18; then
+		pm_nl_set_limits $ns1 4 4
+		pm_nl_set_limits $ns2 4 4
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup,fullmesh
+		sflags=nobackup,nofullmesh speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 2 2 2
+		chk_prio_nr 0 1 1 0
+		chk_rm_nr 0 1
+	fi
+}
+
+fastclose_tests()
+{
+	if reset_check_counter "fastclose test" "MPTcpExtMPFastcloseTx"; then
+		test_linkfail=1024 fastclose=client \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_fclose_nr 1 1
+		chk_rst_nr 1 1 invert
+	fi
+
+	if reset_check_counter "fastclose server test" "MPTcpExtMPFastcloseRx"; then
+		test_linkfail=1024 fastclose=server \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_rst_nr=1 \
+			chk_join_nr 0 0 0
+		chk_fclose_nr 1 1 invert
+		chk_rst_nr 1 1
+	fi
+}
+
+pedit_action_pkts()
+{
+	tc -n $ns2 -j -s action show action pedit index 100 | \
+		mptcp_lib_get_info_value \"packets\" packets
+}
+
+fail_tests()
+{
+	# single subflow
+	if reset_with_fail "Infinite map" 1; then
+		MPTCP_LIB_SUBTEST_FLAKY=1
+		test_linkfail=128 \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_csum_ns1=+1 join_csum_ns2=+0 \
+			join_fail_nr=1 join_rst_nr=0 join_infi_nr=1 \
+			join_corrupted_pkts="$(pedit_action_pkts)" \
+			fb_ns1="fb_dss=1" fb_ns2="fb_infinite_map_tx=1" \
+			chk_join_nr 0 0 0
+		chk_fail_nr 1 -1 invert
+	fi
+
+	# multiple subflows
+	if reset_with_fail "MP_FAIL MP_RST" 2; then
+		MPTCP_LIB_SUBTEST_FLAKY=1
+		tc -n $ns2 qdisc add dev ns2eth1 root netem rate 1mbit delay 5ms
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.2.2 dev ns2eth2 flags subflow
+		test_linkfail=1024 \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_csum_ns1=1 join_csum_ns2=0 \
+			join_fail_nr=1 join_rst_nr=1 join_infi_nr=0 \
+			join_corrupted_pkts="$(pedit_action_pkts)" \
+			chk_join_nr 1 1 1
+	fi
+}
+
+# $1: ns ; $2: addr ; $3: id
+userspace_pm_add_addr()
+{
+	local evts=$evts_ns1
+	local tk
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+
+	ip netns exec $1 ./pm_nl_ctl ann $2 token $tk id $3
+	sleep 1
+}
+
+# $1: ns ; $2: id
+userspace_pm_rm_addr()
+{
+	local evts=$evts_ns1
+	local tk
+	local cnt
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+
+	cnt=$(rm_addr_count ${1})
+	ip netns exec $1 ./pm_nl_ctl rem token $tk id $2
+	wait_rm_addr $1 "${cnt}"
+}
+
+# $1: ns ; $2: addr ; $3: id
+userspace_pm_add_sf()
+{
+	local evts=$evts_ns1
+	local tk da dp
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+	da=$(mptcp_lib_evts_get_info daddr4 "$evts")
+	dp=$(mptcp_lib_evts_get_info dport "$evts")
+
+	ip netns exec $1 ./pm_nl_ctl csf lip $2 lid $3 \
+				rip $da rport $dp token $tk
+	sleep 1
+}
+
+# $1: ns ; $2: addr $3: event type
+userspace_pm_rm_sf()
+{
+	local evts=$evts_ns1
+	local t=${3:-1}
+	local ip
+	local tk da dp sp
+	local cnt
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	[ -n "$(mptcp_lib_evts_get_info "saddr4" "$evts" $t)" ] && ip=4
+	[ -n "$(mptcp_lib_evts_get_info "saddr6" "$evts" $t)" ] && ip=6
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+	da=$(mptcp_lib_evts_get_info "daddr$ip" "$evts" $t $2)
+	dp=$(mptcp_lib_evts_get_info dport "$evts" $t $2)
+	sp=$(mptcp_lib_evts_get_info sport "$evts" $t $2)
+
+	cnt=$(rm_sf_count ${1})
+	ip netns exec $1 ./pm_nl_ctl dsf lip $2 lport $sp \
+				rip $da rport $dp token $tk
+	wait_rm_sf $1 "${cnt}"
+}
+
+check_output()
+{
+	local cmd="$1"
+	local expected="$2"
+	local msg="$3"
+	local rc=0
+
+	mptcp_lib_check_output "${err}" "${cmd}" "${expected}" || rc=${?}
+	if [ ${rc} -eq 2 ]; then
+		fail_test "fail to check output # error ${rc}"
+	elif [ ${rc} -eq 0 ]; then
+		print_ok
+	elif [ ${rc} -eq 1 ]; then
+		fail_test "fail to check output # different output"
+	fi
+}
+
+# $1: ns
+userspace_pm_dump()
+{
+	local evts=$evts_ns1
+	local tk
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+
+	ip netns exec $1 ./pm_nl_ctl dump token $tk
+}
+
+# $1: ns ; $2: id
+userspace_pm_get_addr()
+{
+	local evts=$evts_ns1
+	local tk
+
+	[ "$1" == "$ns2" ] && evts=$evts_ns2
+	tk=$(mptcp_lib_evts_get_info token "$evts")
+
+	ip netns exec $1 ./pm_nl_ctl get $2 token $tk
+}
+
+userspace_pm_chk_dump_addr()
+{
+	local ns="${1}"
+	local exp="${2}"
+	local check="${3}"
+
+	print_check "dump addrs ${check}"
+
+	if mptcp_lib_kallsyms_has "mptcp_userspace_pm_dump_addr$"; then
+		check_output "userspace_pm_dump ${ns}" "${exp}"
+	else
+		print_skip
+	fi
+}
+
+userspace_pm_chk_get_addr()
+{
+	local ns="${1}"
+	local id="${2}"
+	local exp="${3}"
+
+	print_check "get id ${id} addr"
+
+	if mptcp_lib_kallsyms_has "mptcp_userspace_pm_get_addr$"; then
+		check_output "userspace_pm_get_addr ${ns} ${id}" "${exp}"
+	else
+		print_skip
+	fi
+}
+
+# $1: ns ; $2: event type ; $3: count
+chk_evt_nr()
+{
+	local ns=${1}
+	local evt_name="${2}"
+	local exp="${3}"
+
+	local evts="${evts_ns1}"
+	local evt="${!evt_name}"
+	local count
+
+	evt_name="${evt_name:16}" # without MPTCP_LIB_EVENT_
+	[ "${ns}" == "ns2" ] && evts="${evts_ns2}"
+
+	print_check "event ${ns} ${evt_name} (${exp})"
+
+	if [[ "${evt_name}" = "LISTENER_"* ]] &&
+	   ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
+		print_skip "event not supported"
+		return
+	fi
+
+	count=$(grep -cw "type:${evt}" "${evts}")
+	if [ "${count}" != "${exp}" ]; then
+		fail_test "got ${count} events, expected ${exp}"
+	else
+		print_ok
+	fi
+}
+
+userspace_tests()
+{
+	# userspace pm type prevents add_addr
+	if reset "userspace pm type prevents add_addr" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_add_nr 0 0
+	fi
+
+	# userspace pm type does not echo add_addr without daemon
+	if reset "userspace pm no echo w/o daemon" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 0 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_add_nr 1 0
+	fi
+
+	# userspace pm type rejects join
+	if reset "userspace pm type rejects join" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		join_syn_rej=1 \
+			chk_join_nr 1 1 0
+	fi
+
+	# userspace pm type does not send join
+	if reset "userspace pm type does not send join" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+	fi
+
+	# userspace pm type prevents mp_prio
+	if reset "userspace pm type prevents mp_prio" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns1 1 1
+		pm_nl_set_limits $ns2 1 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		sflags=backup speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		join_syn_rej=1 \
+			chk_join_nr 1 1 0
+		chk_prio_nr 0 0 0 0
+	fi
+
+	# userspace pm type prevents rm_addr
+	if reset "userspace pm type prevents rm_addr" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 1
+		pm_nl_set_limits $ns2 0 1
+		pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
+		addr_nr_ns2=-1 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1
+		chk_join_nr 0 0 0
+		chk_rm_nr 0 0
+	fi
+
+	# userspace pm add & remove address
+	if reset_with_events "userspace pm add & remove address" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns2 2 2
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+		wait_mpj $ns1
+		userspace_pm_add_addr $ns1 10.0.2.1 10
+		userspace_pm_add_addr $ns1 10.0.3.1 20
+		chk_join_nr 2 2 2
+		chk_add_nr 2 2
+		chk_mptcp_info subflows 2 subflows 2
+		chk_subflows_total 3 3
+		chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+		userspace_pm_chk_dump_addr "${ns1}" \
+			$'id 10 flags signal 10.0.2.1\nid 20 flags signal 10.0.3.1' \
+			"signal"
+		userspace_pm_chk_get_addr "${ns1}" "10" "id 10 flags signal 10.0.2.1"
+		userspace_pm_chk_get_addr "${ns1}" "20" "id 20 flags signal 10.0.3.1"
+		userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $MPTCP_LIB_EVENT_SUB_ESTABLISHED
+		userspace_pm_chk_dump_addr "${ns1}" \
+			"id 20 flags signal 10.0.3.1" "after rm_sf 10"
+		userspace_pm_rm_addr $ns1 20
+		userspace_pm_chk_dump_addr "${ns1}" "" "after rm_addr 20"
+		chk_rm_nr 1 1 invert
+		chk_mptcp_info subflows 0 subflows 0
+		chk_subflows_total 1 1
+		kill_events_pids
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+
+	# userspace pm create destroy subflow
+	if reset_with_events "userspace pm create destroy subflow" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 1
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+		wait_mpj $ns2
+		userspace_pm_add_sf $ns2 10.0.3.2 20
+		chk_join_nr 1 1 1
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 2 2
+		userspace_pm_chk_dump_addr "${ns2}" \
+			"id 20 flags subflow 10.0.3.2" \
+			"subflow"
+		userspace_pm_chk_get_addr "${ns2}" "20" "id 20 flags subflow 10.0.3.2"
+		userspace_pm_rm_sf $ns2 10.0.3.2 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
+		userspace_pm_chk_dump_addr "${ns2}" \
+			"" \
+			"after rm_sf 20"
+		chk_rm_nr 0 1
+		chk_mptcp_info subflows 0 subflows 0
+		chk_subflows_total 1 1
+		kill_events_pids
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+
+	# userspace pm create id 0 subflow
+	if reset_with_events "userspace pm create id 0 subflow" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 1
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+		wait_mpj $ns2
+		chk_mptcp_info subflows 0 subflows 0
+		chk_subflows_total 1 1
+		userspace_pm_add_sf $ns2 10.0.3.2 0
+		userspace_pm_chk_dump_addr "${ns2}" \
+			"id 0 flags subflow 10.0.3.2" "id 0 subflow"
+		chk_join_nr 1 1 1
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 2 2
+		kill_events_pids
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+
+	# userspace pm remove initial subflow
+	if reset_with_events "userspace pm remove initial subflow" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 1
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+		wait_mpj $ns2
+		userspace_pm_add_sf $ns2 10.0.3.2 20
+		chk_join_nr 1 1 1
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 2 2
+		userspace_pm_rm_sf $ns2 10.0.1.2
+		# we don't look at the counter linked to the RM_ADDR but
+		# to the one linked to the subflows that have been removed
+		chk_rm_nr 0 1
+		chk_rst_nr 0 0 invert
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 1 1
+		kill_events_pids
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+
+	# userspace pm send RM_ADDR for ID 0
+	if reset_with_events "userspace pm send RM_ADDR for ID 0" &&
+	   continue_if mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns2 1 1
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+		wait_mpj $ns1
+		userspace_pm_add_addr $ns1 10.0.2.1 10
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 2 2
+		chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
+		userspace_pm_rm_addr $ns1 0
+		# we don't look at the counter linked to the subflows that
+		# have been removed but to the one linked to the RM_ADDR
+		chk_rm_nr 1 0 invert
+		chk_rst_nr 0 0 invert
+		chk_mptcp_info subflows 1 subflows 1
+		chk_subflows_total 1 1
+		kill_events_pids
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+}
+
+endpoint_tests()
+{
+	# subflow_rebuild_header is needed to support the implicit flag
+	# userspace pm type prevents add_addr
+	if reset "implicit EP" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 2 2
+		pm_nl_set_limits $ns2 2 2
+		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
+		{ timeout_test=120 test_linkfail=128 speed=slow \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+
+		wait_mpj $ns1
+		pm_nl_check_endpoint "creation" \
+			$ns2 10.0.2.2 id 1 flags implicit
+		chk_mptcp_info subflows 1 subflows 1
+		chk_mptcp_info add_addr_signal 1 add_addr_accepted 1
+
+		pm_nl_add_endpoint $ns2 10.0.2.2 id 33 2>/dev/null
+		pm_nl_check_endpoint "ID change is prevented" \
+			$ns2 10.0.2.2 id 1 flags implicit
+
+		pm_nl_add_endpoint $ns2 10.0.2.2 flags signal
+		pm_nl_check_endpoint "modif is allowed" \
+			$ns2 10.0.2.2 id 1 flags signal
+		mptcp_lib_kill_group_wait $tests_pid
+	fi
+
+	if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		start_events
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_set_limits $ns2 0 3
+		pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+
+		wait_mpj $ns2
+		pm_nl_check_endpoint "creation" \
+			$ns2 10.0.2.2 id 2 flags subflow dev ns2eth2
+		chk_subflow_nr "before delete id 2" 2
+		chk_mptcp_info subflows 1 subflows 1
+
+		pm_nl_del_endpoint $ns2 2 10.0.2.2
+		sleep 0.5
+		chk_subflow_nr "after delete id 2" 1
+		chk_mptcp_info subflows 0 subflows 0
+
+		pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
+		wait_mpj $ns2
+		chk_subflow_nr "after re-add id 2" 2
+		chk_mptcp_info subflows 1 subflows 1
+
+		pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
+		wait_attempt_fail $ns2
+		chk_subflow_nr "after new reject" 2
+		chk_mptcp_info subflows 1 subflows 1
+
+		ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
+		pm_nl_del_endpoint $ns2 3 10.0.3.2
+		pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
+		wait_mpj $ns2
+		chk_subflow_nr "after no reject" 3
+		chk_mptcp_info subflows 2 subflows 2
+
+		local i
+		for i in $(seq 3); do
+			pm_nl_del_endpoint $ns2 1 10.0.1.2
+			sleep 0.5
+			chk_subflow_nr "after delete id 0 ($i)" 2
+			chk_mptcp_info subflows 2 subflows 2 # only decr for additional sf
+
+			pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
+			wait_mpj $ns2
+			chk_subflow_nr "after re-add id 0 ($i)" 3
+			chk_mptcp_info subflows 3 subflows 3
+		done
+
+		mptcp_lib_kill_group_wait $tests_pid
+
+		kill_events_pids
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 4
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 4
+
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 0
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 6
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 5 # one has been closed before estab
+
+		join_syn_tx=7 \
+			chk_join_nr 6 6 6
+		chk_rm_nr 4 4
+	fi
+
+	# remove and re-add
+	if reset_with_events "delete re-add signal" &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=0
+		pm_nl_set_limits $ns1 0 3
+		pm_nl_set_limits $ns2 3 3
+		pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
+		# broadcast IP: no packet for this address will be received on ns1
+		pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
+		pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
+		{ timeout_test=120 test_linkfail=128 speed=5 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+
+		wait_mpj $ns2
+		pm_nl_check_endpoint "creation" \
+			$ns1 10.0.2.1 id 1 flags signal
+		chk_subflow_nr "before delete" 2
+		chk_mptcp_info subflows 1 subflows 1
+		chk_mptcp_info add_addr_signal 2 add_addr_accepted 1
+
+		pm_nl_del_endpoint $ns1 1 10.0.2.1
+		pm_nl_del_endpoint $ns1 2 224.0.0.1
+		sleep 0.5
+		chk_subflow_nr "after delete" 1
+		chk_mptcp_info subflows 0 subflows 0
+		chk_mptcp_info add_addr_signal 0 add_addr_accepted 0
+
+		pm_nl_add_endpoint $ns1 10.0.2.1 id 1 flags signal
+		pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
+		wait_mpj $ns2
+		chk_subflow_nr "after re-add" 3
+		chk_mptcp_info subflows 2 subflows 2
+		chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+
+		pm_nl_del_endpoint $ns1 42 10.0.1.1
+		sleep 0.5
+		chk_subflow_nr "after delete ID 0" 2
+		chk_mptcp_info subflows 2 subflows 2
+		chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+
+		pm_nl_add_endpoint $ns1 10.0.1.1 id 99 flags signal
+		wait_mpj $ns2
+		chk_subflow_nr "after re-add ID 0" 3
+		chk_mptcp_info subflows 3 subflows 3
+		chk_mptcp_info add_addr_signal 3 add_addr_accepted 2
+
+		pm_nl_del_endpoint $ns1 99 10.0.1.1
+		sleep 0.5
+		chk_subflow_nr "after re-delete ID 0" 2
+		chk_mptcp_info subflows 2 subflows 2
+		chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+
+		pm_nl_add_endpoint $ns1 10.0.1.1 id 88 flags signal
+		wait_mpj $ns2
+		chk_subflow_nr "after re-re-add ID 0" 3
+		chk_mptcp_info subflows 3 subflows 3
+		chk_mptcp_info add_addr_signal 3 add_addr_accepted 2
+		mptcp_lib_kill_group_wait $tests_pid
+
+		kill_events_pids
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 3
+
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 6
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 4
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 3
+
+		join_connect_err=1 \
+			chk_join_nr 5 5 5
+		chk_add_nr 6 6
+		chk_rm_nr 4 3 invert
+	fi
+
+	# flush and re-add
+	if reset_with_tcp_filter "flush re-add" ns2 10.0.3.2 REJECT OUTPUT &&
+	   continue_if mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		pm_nl_set_limits $ns1 0 2
+		pm_nl_set_limits $ns2 1 2
+		# broadcast IP: no packet for this address will be received on ns1
+		pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
+		pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
+		{ timeout_test=120 test_linkfail=128 speed=20 \
+			run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
+		local tests_pid=$!
+
+		wait_attempt_fail $ns2
+		chk_subflow_nr "before flush" 1
+		chk_mptcp_info subflows 0 subflows 0
+
+		pm_nl_flush_endpoint $ns2
+		pm_nl_flush_endpoint $ns1
+		wait_rm_addr $ns2 0
+		ip netns exec "${ns2}" ${iptables} -D OUTPUT -s "10.0.3.2" -p tcp -j REJECT
+		pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
+		wait_mpj $ns2
+		pm_nl_add_endpoint $ns1 10.0.3.1 id 2 flags signal
+		wait_mpj $ns2
+		mptcp_lib_kill_group_wait $tests_pid
+
+		join_syn_tx=3 join_connect_err=1 \
+			chk_join_nr 2 2 2
+		chk_add_nr 2 2
+		chk_rm_nr 1 0 invert
+	fi
+}
+
+# [$1: error message]
+usage()
+{
+	if [ -n "${1}" ]; then
+		echo "${1}"
+		ret=${KSFT_FAIL}
+	fi
+
+	echo "mptcp_join usage:"
+
+	local key
+	for key in "${!all_tests[@]}"; do
+		echo "  -${key} ${all_tests[${key}]}"
+	done
+
+	echo "  -c capture pcap files"
+	echo "  -C enable data checksum"
+	echo "  -i use ip mptcp"
+	echo "  -h help"
+
+	echo "[test ids|names]"
+
+	exit ${ret}
+}
+
+
+# Use a "simple" array to force an specific order we cannot have with an associative one
+all_tests_sorted=(
+	f@subflows_tests
+	e@subflows_error_tests
+	s@signal_address_tests
+	L@laminar_endp_tests
+	l@link_failure_tests
+	t@add_addr_timeout_tests
+	r@remove_tests
+	a@add_tests
+	6@ipv6_tests
+	4@v4mapped_tests
+	M@mixed_tests
+	b@backup_tests
+	p@add_addr_ports_tests
+	B@bind_tests
+	k@syncookies_tests
+	S@checksum_tests
+	d@deny_join_id0_tests
+	m@fullmesh_tests
+	z@fastclose_tests
+	F@fail_tests
+	u@userspace_tests
+	I@endpoint_tests
+)
+
+all_tests_args=""
+all_tests_names=()
+for subtests in "${all_tests_sorted[@]}"; do
+	key="${subtests%@*}"
+	value="${subtests#*@}"
+
+	all_tests_args+="${key}"
+	all_tests_names+=("${value}")
+	all_tests[${key}]="${value}"
+done
+
+tests=()
+while getopts "${all_tests_args}cCih" opt; do
+	case $opt in
+		["${all_tests_args}"])
+			tests+=("${all_tests[${opt}]}")
+			;;
+		c)
+			capture=true
+			;;
+		C)
+			checksum=true
+			;;
+		i)
+			mptcp_lib_set_ip_mptcp
+			;;
+		h)
+			usage
+			;;
+		*)
+			usage "Unknown option: -${opt}"
+			;;
+	esac
+done
+
+shift $((OPTIND - 1))
+
+for arg in "${@}"; do
+	if [[ "${arg}" =~ ^[0-9]+$ ]]; then
+		only_tests_ids+=("${arg}")
+	else
+		only_tests_names+=("${arg}")
+	fi
+done
+
+if [ ${#tests[@]} -eq 0 ]; then
+	tests=("${all_tests_names[@]}")
+fi
+
+mptcp_lib_subtests_last_ts_reset
+for subtests in "${tests[@]}"; do
+	"${subtests}"
+done
+append_prev_results
+
+if [ ${ret} -ne 0 ]; then
+	echo
+	echo "${#failed_tests[@]} failure(s) has(ve) been detected:"
+	for i in $(get_failed_tests_ids); do
+		echo -e "\t- ${i}: ${failed_tests[${i}]}"
+	done
+	echo
+fi
+
+mptcp_lib_result_print_all_tap
+
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
new file mode 100644
index 000000000000..5fea7e7df628
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -0,0 +1,760 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/../lib.sh"
+
+readonly KSFT_PASS=0
+readonly KSFT_FAIL=1
+readonly KSFT_SKIP=4
+
+# shellcheck disable=SC2155 # declare and assign separately
+readonly KSFT_TEST="${MPTCP_LIB_KSFT_TEST:-$(basename "${0}" .sh)}"
+
+# These variables are used in some selftests, read-only
+declare -rx MPTCP_LIB_EVENT_CREATED=1           # MPTCP_EVENT_CREATED
+declare -rx MPTCP_LIB_EVENT_ESTABLISHED=2       # MPTCP_EVENT_ESTABLISHED
+declare -rx MPTCP_LIB_EVENT_CLOSED=3            # MPTCP_EVENT_CLOSED
+declare -rx MPTCP_LIB_EVENT_ANNOUNCED=6         # MPTCP_EVENT_ANNOUNCED
+declare -rx MPTCP_LIB_EVENT_REMOVED=7           # MPTCP_EVENT_REMOVED
+declare -rx MPTCP_LIB_EVENT_SUB_ESTABLISHED=10  # MPTCP_EVENT_SUB_ESTABLISHED
+declare -rx MPTCP_LIB_EVENT_SUB_CLOSED=11       # MPTCP_EVENT_SUB_CLOSED
+declare -rx MPTCP_LIB_EVENT_SUB_PRIORITY=13     # MPTCP_EVENT_SUB_PRIORITY
+declare -rx MPTCP_LIB_EVENT_LISTENER_CREATED=15 # MPTCP_EVENT_LISTENER_CREATED
+declare -rx MPTCP_LIB_EVENT_LISTENER_CLOSED=16  # MPTCP_EVENT_LISTENER_CLOSED
+
+declare -rx MPTCP_LIB_AF_INET=2
+declare -rx MPTCP_LIB_AF_INET6=10
+
+MPTCP_LIB_SUBTESTS=()
+MPTCP_LIB_SUBTESTS_DUPLICATED=0
+MPTCP_LIB_SUBTEST_FLAKY=0
+MPTCP_LIB_SUBTESTS_LAST_TS_MS=
+MPTCP_LIB_TEST_COUNTER=0
+MPTCP_LIB_TEST_FORMAT="%02u %-50s"
+MPTCP_LIB_IP_MPTCP=0
+
+# only if supported (or forced) and not disabled, see no-color.org
+if { [ -t 1 ] || [ "${SELFTESTS_MPTCP_LIB_COLOR_FORCE:-}" = "1" ]; } &&
+   [ "${NO_COLOR:-}" != "1" ]; then
+	readonly MPTCP_LIB_COLOR_RED="\E[1;31m"
+	readonly MPTCP_LIB_COLOR_GREEN="\E[1;32m"
+	readonly MPTCP_LIB_COLOR_YELLOW="\E[1;33m"
+	readonly MPTCP_LIB_COLOR_BLUE="\E[1;34m"
+	readonly MPTCP_LIB_COLOR_RESET="\E[0m"
+else
+	readonly MPTCP_LIB_COLOR_RED=
+	readonly MPTCP_LIB_COLOR_GREEN=
+	readonly MPTCP_LIB_COLOR_YELLOW=
+	readonly MPTCP_LIB_COLOR_BLUE=
+	readonly MPTCP_LIB_COLOR_RESET=
+fi
+
+# SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY env var can be set not to ignore errors
+# from subtests marked as flaky
+mptcp_lib_override_flaky() {
+	[ "${SELFTESTS_MPTCP_LIB_OVERRIDE_FLAKY:-}" = 1 ]
+}
+
+mptcp_lib_subtest_is_flaky() {
+	[ "${MPTCP_LIB_SUBTEST_FLAKY}" = 1 ] && ! mptcp_lib_override_flaky
+}
+
+# $1: color, $2: text
+mptcp_lib_print_color() {
+	echo -e "${MPTCP_LIB_START_PRINT:-}${*}${MPTCP_LIB_COLOR_RESET}"
+}
+
+mptcp_lib_print_ok() {
+	mptcp_lib_print_color "${MPTCP_LIB_COLOR_GREEN}${*}"
+}
+
+mptcp_lib_print_warn() {
+	mptcp_lib_print_color "${MPTCP_LIB_COLOR_YELLOW}${*}"
+}
+
+mptcp_lib_print_info() {
+	mptcp_lib_print_color "${MPTCP_LIB_COLOR_BLUE}${*}"
+}
+
+mptcp_lib_print_err() {
+	mptcp_lib_print_color "${MPTCP_LIB_COLOR_RED}${*}"
+}
+
+# shellcheck disable=SC2120 # parameters are optional
+mptcp_lib_pr_ok() {
+	mptcp_lib_print_ok "[ OK ]${1:+ ${*}}"
+}
+
+mptcp_lib_pr_skip() {
+	mptcp_lib_print_warn "[SKIP]${1:+ ${*}}"
+}
+
+mptcp_lib_pr_fail() {
+	local title cmt
+
+	if mptcp_lib_subtest_is_flaky; then
+		title="IGNO"
+		cmt=" (flaky)"
+	else
+		title="FAIL"
+	fi
+
+	mptcp_lib_print_err "[${title}]${cmt}${1:+ ${*}}"
+}
+
+mptcp_lib_pr_info() {
+	mptcp_lib_print_info "INFO: ${*}"
+}
+
+mptcp_lib_pr_nstat() {
+	local ns="${1}"
+	local hist="/tmp/${ns}.out"
+
+	if [ -f "${hist}" ]; then
+		awk '$2 != 0 { print "  "$0 }' "${hist}"
+	else
+		ip netns exec "${ns}" nstat -as | grep Tcp
+	fi
+}
+
+# $1-2: listener/connector ns ; $3 port
+mptcp_lib_pr_err_stats() {
+	local lns="${1}"
+	local cns="${2}"
+	local port="${3}"
+
+	echo -en "${MPTCP_LIB_COLOR_RED}"
+	{
+		printf "\nnetns %s (listener) socket stat for %d:\n" "${lns}" "${port}"
+		ip netns exec "${lns}" ss -Menitam -o "sport = :${port}"
+		mptcp_lib_pr_nstat "${lns}"
+
+		printf "\nnetns %s (connector) socket stat for %d:\n" "${cns}" "${port}"
+		ip netns exec "${cns}" ss -Menitam -o "dport = :${port}"
+		[ "${lns}" != "${cns}" ] && mptcp_lib_pr_nstat "${cns}"
+	} 1>&2
+	echo -en "${MPTCP_LIB_COLOR_RESET}"
+}
+
+# SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES env var can be set when validating all
+# features using the last version of the kernel and the selftests to make sure
+# a test is not being skipped by mistake.
+mptcp_lib_expect_all_features() {
+	[ "${SELFTESTS_MPTCP_LIB_EXPECT_ALL_FEATURES:-}" = "1" ]
+}
+
+# $1: msg
+mptcp_lib_fail_if_expected_feature() {
+	if mptcp_lib_expect_all_features; then
+		echo "ERROR: missing feature: ${*}"
+		exit ${KSFT_FAIL}
+	fi
+
+	return 1
+}
+
+# $1: file
+mptcp_lib_has_file() {
+	local f="${1}"
+
+	if [ -f "${f}" ]; then
+		return 0
+	fi
+
+	mptcp_lib_fail_if_expected_feature "${f} file not found"
+}
+
+mptcp_lib_check_mptcp() {
+	if ! mptcp_lib_has_file "/proc/sys/net/mptcp/enabled"; then
+		mptcp_lib_pr_skip "MPTCP support is not available"
+		exit ${KSFT_SKIP}
+	fi
+}
+
+mptcp_lib_check_kallsyms() {
+	if ! mptcp_lib_has_file "/proc/kallsyms"; then
+		mptcp_lib_pr_skip "CONFIG_KALLSYMS is missing"
+		exit ${KSFT_SKIP}
+	fi
+}
+
+# Internal: use mptcp_lib_kallsyms_has() instead
+__mptcp_lib_kallsyms_has() {
+	local sym="${1}"
+
+	mptcp_lib_check_kallsyms
+
+	grep -q " ${sym}" /proc/kallsyms
+}
+
+# $1: part of a symbol to look at, add '$' at the end for full name
+mptcp_lib_kallsyms_has() {
+	local sym="${1}"
+
+	if __mptcp_lib_kallsyms_has "${sym}"; then
+		return 0
+	fi
+
+	mptcp_lib_fail_if_expected_feature "${sym} symbol not found"
+}
+
+# $1: part of a symbol to look at, add '$' at the end for full name
+mptcp_lib_kallsyms_doesnt_have() {
+	local sym="${1}"
+
+	if ! __mptcp_lib_kallsyms_has "${sym}"; then
+		return 0
+	fi
+
+	mptcp_lib_fail_if_expected_feature "${sym} symbol has been found"
+}
+
+# !!!AVOID USING THIS!!!
+# Features might not land in the expected version and features can be backported
+#
+# $1: kernel version, e.g. 6.3
+mptcp_lib_kversion_ge() {
+	local exp_maj="${1%.*}"
+	local exp_min="${1#*.}"
+	local v maj min
+
+	# If the kernel has backported features, set this env var to 1:
+	if [ "${SELFTESTS_MPTCP_LIB_NO_KVERSION_CHECK:-}" = "1" ]; then
+		return 0
+	fi
+
+	v=$(uname -r | cut -d'.' -f1,2)
+	maj=${v%.*}
+	min=${v#*.}
+
+	if   [ "${maj}" -gt "${exp_maj}" ] ||
+	   { [ "${maj}" -eq "${exp_maj}" ] && [ "${min}" -ge "${exp_min}" ]; }; then
+		return 0
+	fi
+
+	mptcp_lib_fail_if_expected_feature "kernel version ${1} lower than ${v}"
+}
+
+mptcp_lib_subtests_last_ts_reset() {
+	MPTCP_LIB_SUBTESTS_LAST_TS_MS="$(date +%s%3N)"
+}
+mptcp_lib_subtests_last_ts_reset
+
+__mptcp_lib_result_check_duplicated() {
+	local subtest
+
+	for subtest in "${MPTCP_LIB_SUBTESTS[@]}"; do
+		if [[ "${subtest}" == *" - ${KSFT_TEST}: ${*%% #*}" ]]; then
+			MPTCP_LIB_SUBTESTS_DUPLICATED=1
+			mptcp_lib_print_err "Duplicated entry: ${*}"
+			break
+		fi
+	done
+}
+
+__mptcp_lib_result_add() {
+	local result="${1}"
+	local time="time="
+	local ts_prev_ms
+	shift
+
+	local id=$((${#MPTCP_LIB_SUBTESTS[@]} + 1))
+
+	__mptcp_lib_result_check_duplicated "${*}"
+
+	# not to add two '#'
+	[[ "${*}" != *"#"* ]] && time="# ${time}"
+
+	ts_prev_ms="${MPTCP_LIB_SUBTESTS_LAST_TS_MS}"
+	mptcp_lib_subtests_last_ts_reset
+	time+="$((MPTCP_LIB_SUBTESTS_LAST_TS_MS - ts_prev_ms))ms"
+
+	MPTCP_LIB_SUBTESTS+=("${result} ${id} - ${KSFT_TEST}: ${*} ${time}")
+}
+
+# $1: test name
+mptcp_lib_result_pass() {
+	__mptcp_lib_result_add "ok" "${1}"
+}
+
+# $1: test name
+mptcp_lib_result_fail() {
+	if mptcp_lib_subtest_is_flaky; then
+		# It might sound better to use 'not ok # TODO' or 'ok # SKIP',
+		# but some CIs don't understand 'TODO' and treat SKIP as errors.
+		__mptcp_lib_result_add "ok" "${1} # IGNORE Flaky"
+	else
+		__mptcp_lib_result_add "not ok" "${1}"
+	fi
+}
+
+# $1: test name
+mptcp_lib_result_skip() {
+	__mptcp_lib_result_add "ok" "${1} # SKIP"
+}
+
+# $1: result code ; $2: test name
+mptcp_lib_result_code() {
+	local ret="${1}"
+	local name="${2}"
+
+	case "${ret}" in
+		"${KSFT_PASS}")
+			mptcp_lib_result_pass "${name}"
+			;;
+		"${KSFT_FAIL}")
+			mptcp_lib_result_fail "${name}"
+			;;
+		"${KSFT_SKIP}")
+			mptcp_lib_result_skip "${name}"
+			;;
+		*)
+			echo "ERROR: wrong result code: ${ret}"
+			exit ${KSFT_FAIL}
+			;;
+	esac
+}
+
+mptcp_lib_result_print_all_tap() {
+	local subtest
+
+	if [ ${#MPTCP_LIB_SUBTESTS[@]} -eq 0 ] ||
+	   [ "${SELFTESTS_MPTCP_LIB_NO_TAP:-}" = "1" ]; then
+		return
+	fi
+
+	printf "\nTAP version 13\n"
+	printf "1..%d\n" "${#MPTCP_LIB_SUBTESTS[@]}"
+
+	for subtest in "${MPTCP_LIB_SUBTESTS[@]}"; do
+		printf "%s\n" "${subtest}"
+	done
+
+	if [ "${MPTCP_LIB_SUBTESTS_DUPLICATED}" = 1 ] &&
+	   mptcp_lib_expect_all_features; then
+		mptcp_lib_print_err "Duplicated test entries"
+		exit ${KSFT_FAIL}
+	fi
+}
+
+# get the value of keyword $1 in the line marked by keyword $2
+mptcp_lib_get_info_value() {
+	grep "${2}" 2>/dev/null |
+		sed -n 's/.*\('"${1}"':\)\([0-9a-f:.]*\).*$/\2/p;q'
+		# the ';q' at the end limits to the first matched entry.
+}
+
+# $1: info name ; $2: evts_ns ; [$3: event type; [$4: addr]]
+mptcp_lib_evts_get_info() {
+	grep "${4:-}" "${2}" 2>/dev/null |
+		mptcp_lib_get_info_value "${1}" "^type:${3:-1},"
+}
+
+mptcp_lib_wait_timeout() {
+	local timeout_test="${1}"
+	local listener_ns="${2}"
+	local connector_ns="${3}"
+	local port="${4}"
+	shift 4 # rest are PIDs
+
+	sleep "${timeout_test}"
+	mptcp_lib_print_err "timeout"
+	mptcp_lib_pr_err_stats "${listener_ns}" "${connector_ns}" "${port}"
+	kill "${@}" 2>/dev/null
+}
+
+# $1: PID
+mptcp_lib_kill_wait() {
+	[ "${1}" -eq 0 ] && return 0
+
+	kill -SIGUSR1 "${1}" > /dev/null 2>&1
+	kill "${1}" > /dev/null 2>&1
+	wait "${1}" 2>/dev/null
+}
+
+# $1: PID
+mptcp_lib_pid_list_children() {
+	local curr="${1}"
+	# evoke 'ps' only once
+	local pids="${2:-"$(ps o pid,ppid)"}"
+
+	echo "${curr}"
+
+	local pid
+	for pid in $(echo "${pids}" | awk "\$2 == ${curr} { print \$1 }"); do
+		mptcp_lib_pid_list_children "${pid}" "${pids}"
+	done
+}
+
+# $1: PID
+mptcp_lib_kill_group_wait() {
+	# Some users might not have procps-ng: cannot use "kill -- -PID"
+	mptcp_lib_pid_list_children "${1}" | xargs -r kill &>/dev/null
+	wait "${1}" 2>/dev/null
+}
+
+# $1: IP address
+mptcp_lib_is_v6() {
+	[ -z "${1##*:*}" ]
+}
+
+mptcp_lib_nstat_init() {
+	local ns="${1}"
+
+	rm -f "/tmp/${ns}."{nstat,out}
+	NSTAT_HISTORY="/tmp/${ns}.nstat" ip netns exec "${ns}" nstat -n
+}
+
+mptcp_lib_nstat_get() {
+	local ns="${1}"
+
+	# filter out non-*TCP stats, and the rate (last column)
+	NSTAT_HISTORY="/tmp/${ns}.nstat" ip netns exec "${ns}" nstat -sz |
+		grep -o ".*Tcp\S\+\s\+[0-9]\+" > "/tmp/${ns}.out"
+}
+
+# $1: ns, $2: MIB counter
+# Get the counter from the history (mptcp_lib_nstat_{init,get}()) if available.
+# If not, get the counter from nstat ignoring any history.
+mptcp_lib_get_counter() {
+	local ns="${1}"
+	local counter="${2}"
+	local hist="/tmp/${ns}.out"
+	local count
+
+	if [[ -s "${hist}" && "${counter}" == *"Tcp"* ]]; then
+		count=$(awk "/^${counter} / {print \$2; exit}" "${hist}")
+	else
+		count=$(ip netns exec "${ns}" nstat -asz "${counter}" |
+			awk 'NR==1 {next} {print $2}')
+	fi
+	if [ -z "${count}" ]; then
+		mptcp_lib_fail_if_expected_feature "${counter} counter"
+		return 1
+	fi
+
+	echo "${count}"
+}
+
+mptcp_lib_make_file() {
+	local name="${1}"
+	local bs="${2}"
+	local size="${3}"
+
+	dd if=/dev/urandom of="${name}" bs="${bs}" count="${size}" 2> /dev/null
+	echo -e "\nMPTCP_TEST_FILE_END_MARKER" >> "${name}"
+}
+
+# $1: file
+mptcp_lib_print_file_err() {
+	ls -l "${1}" 1>&2
+	echo "Trailing bytes are: "
+	tail -c 32 "${1}" | od -x | head -n2
+}
+
+# $1: input file ; $2: output file ; $3: what kind of file
+mptcp_lib_check_transfer() {
+	local in="${1}"
+	local out="${2}"
+	local what="${3}"
+
+	if ! cmp "$in" "$out" > /dev/null 2>&1; then
+		mptcp_lib_pr_fail "$what does not match (in, out):"
+		mptcp_lib_print_file_err "$in"
+		mptcp_lib_print_file_err "$out"
+
+		return 1
+	fi
+
+	return 0
+}
+
+# $1: ns, $2: port
+mptcp_lib_wait_local_port_listen() {
+	wait_local_port_listen "${@}" "tcp"
+}
+
+mptcp_lib_check_output() {
+	local err="${1}"
+	local cmd="${2}"
+	local expected="${3}"
+	local cmd_ret=0
+	local out
+
+	if ! out=$(${cmd} 2>"${err}"); then
+		cmd_ret=${?}
+	fi
+
+	if [ ${cmd_ret} -ne 0 ]; then
+		mptcp_lib_pr_fail "command execution '${cmd}' stderr"
+		cat "${err}"
+		return 2
+	elif [ "${out}" = "${expected}" ]; then
+		return 0
+	else
+		mptcp_lib_pr_fail "expected '${expected}' got '${out}'"
+		return 1
+	fi
+}
+
+mptcp_lib_check_tools() {
+	local tool
+
+	for tool in "${@}"; do
+		case "${tool}" in
+		"ip")
+			if ! ip -Version &> /dev/null; then
+				mptcp_lib_pr_skip "Could not run test without ip tool"
+				exit ${KSFT_SKIP}
+			fi
+			;;
+		"tc")
+			if ! tc -help &> /dev/null; then
+				mptcp_lib_pr_skip "Could not run test without tc tool"
+				exit ${KSFT_SKIP}
+			fi
+			;;
+		"ss")
+			if ! ss -h | grep -q MPTCP; then
+				mptcp_lib_pr_skip "ss tool does not support MPTCP"
+				exit ${KSFT_SKIP}
+			fi
+			;;
+		"iptables"* | "ip6tables"*)
+			if ! "${tool}" -V &> /dev/null; then
+				mptcp_lib_pr_skip "Could not run all tests without ${tool}"
+				exit ${KSFT_SKIP}
+			fi
+			;;
+		*)
+			mptcp_lib_pr_fail "Internal error: unsupported tool: ${tool}"
+			exit ${KSFT_FAIL}
+			;;
+		esac
+	done
+}
+
+mptcp_lib_ns_init() {
+	if ! setup_ns "${@}"; then
+		mptcp_lib_pr_fail "Failed to setup namespaces ${*}"
+		exit ${KSFT_FAIL}
+	fi
+
+	local netns
+	for netns in "${@}"; do
+		ip netns exec "${!netns}" sysctl -q net.mptcp.enabled=1
+	done
+}
+
+mptcp_lib_ns_exit() {
+	cleanup_ns "${@}"
+
+	local netns
+	for netns in "${@}"; do
+		rm -f /tmp/"${netns}".{nstat,out}
+	done
+}
+
+mptcp_lib_events() {
+	local ns="${1}"
+	local evts="${2}"
+	declare -n pid="${3}"
+
+	:>"${evts}"
+
+	mptcp_lib_kill_wait "${pid:-0}"
+	ip netns exec "${ns}" ./pm_nl_ctl events >> "${evts}" 2>&1 &
+	pid=$!
+}
+
+mptcp_lib_print_title() {
+	: "${MPTCP_LIB_TEST_COUNTER:?}"
+	: "${MPTCP_LIB_TEST_FORMAT:?}"
+
+	# shellcheck disable=SC2059 # the format is in a variable
+	printf "${MPTCP_LIB_TEST_FORMAT}" "$((++MPTCP_LIB_TEST_COUNTER))" "${*}"
+}
+
+# $1: var name ; $2: prev ret
+mptcp_lib_check_expected_one() {
+	local var="${1}"
+	local exp="e_${var}"
+	local prev_ret="${2}"
+
+	if [ "${!var}" = "${!exp}" ]; then
+		return 0
+	fi
+
+	if [ "${prev_ret}" = "0" ]; then
+		mptcp_lib_pr_fail
+	fi
+
+	mptcp_lib_print_err "Expected value for '${var}': '${!exp}', got '${!var}'."
+	return 1
+}
+
+# $@: all var names to check
+mptcp_lib_check_expected() {
+	local rc=0
+	local var
+
+	for var in "${@}"; do
+		mptcp_lib_check_expected_one "${var}" "${rc}" || rc=1
+	done
+
+	return "${rc}"
+}
+
+# shellcheck disable=SC2034 # Some variables are used below but indirectly
+mptcp_lib_verify_listener_events() {
+	local evt=${1}
+	local e_type=${2}
+	local e_family=${3}
+	local e_saddr=${4}
+	local e_sport=${5}
+	local type
+	local family
+	local saddr
+	local sport
+	local rc=0
+
+	type=$(mptcp_lib_evts_get_info type "${evt}" "${e_type}")
+	family=$(mptcp_lib_evts_get_info family "${evt}" "${e_type}")
+	if [ "${family}" ] && [ "${family}" = "${AF_INET6}" ]; then
+		saddr=$(mptcp_lib_evts_get_info saddr6 "${evt}" "${e_type}")
+	else
+		saddr=$(mptcp_lib_evts_get_info saddr4 "${evt}" "${e_type}")
+	fi
+	sport=$(mptcp_lib_evts_get_info sport "${evt}" "${e_type}")
+
+	mptcp_lib_check_expected "type" "family" "saddr" "sport" || rc="${?}"
+	return "${rc}"
+}
+
+mptcp_lib_set_ip_mptcp() {
+	MPTCP_LIB_IP_MPTCP=1
+}
+
+mptcp_lib_is_ip_mptcp() {
+	[ "${MPTCP_LIB_IP_MPTCP}" = "1" ]
+}
+
+# format: <id>,<ip>,<flags>,<dev>
+mptcp_lib_pm_nl_format_endpoints() {
+	local entry id ip flags dev port
+
+	for entry in "${@}"; do
+		IFS=, read -r id ip flags dev port <<< "${entry}"
+		if mptcp_lib_is_ip_mptcp; then
+			echo -n "${ip}"
+			[ -n "${port}" ] && echo -n " port ${port}"
+			echo -n " id ${id}"
+			[ -n "${flags}" ] && echo -n " ${flags}"
+			[ -n "${dev}" ] && echo -n " dev ${dev}"
+			echo " " # always a space at the end
+		else
+			echo -n "id ${id}"
+			echo -n " flags ${flags//" "/","}"
+			[ -n "${dev}" ] && echo -n " dev ${dev}"
+			echo -n " ${ip}"
+			[ -n "${port}" ] && echo -n " ${port}"
+			echo ""
+		fi
+	done
+}
+
+mptcp_lib_pm_nl_get_endpoint() {
+	local ns=${1}
+	local id=${2}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint show id "${id}"
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl get "${id}"
+	fi
+}
+
+mptcp_lib_pm_nl_set_limits() {
+	local ns=${1}
+	local addrs=${2}
+	local subflows=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp limits set add_addr_accepted "${addrs}" subflows "${subflows}"
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl limits "${addrs}" "${subflows}"
+	fi
+}
+
+mptcp_lib_pm_nl_add_endpoint() {
+	local ns=${1}
+	local addr=${2}
+	local flags dev id port
+	local nr=2
+
+	local p
+	for p in "${@}"; do
+		case "${p}" in
+		"flags" | "dev" | "id" | "port")
+			eval "${p}"=\$"${nr}"
+			;;
+		esac
+
+		nr=$((nr + 1))
+	done
+
+	if mptcp_lib_is_ip_mptcp; then
+		# shellcheck disable=SC2086 # blanks in flags, no double quote
+		ip -n "${ns}" mptcp endpoint add "${addr}" ${flags//","/" "} \
+			${dev:+dev "${dev}"} ${id:+id "${id}"} ${port:+port "${port}"}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl add "${addr}" ${flags:+flags "${flags}"} \
+			${dev:+dev "${dev}"} ${id:+id "${id}"} ${port:+port "${port}"}
+	fi
+}
+
+mptcp_lib_pm_nl_del_endpoint() {
+	local ns=${1}
+	local id=${2}
+	local addr=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		[ "${id}" -ne 0 ] && addr=''
+		ip -n "${ns}" mptcp endpoint delete id "${id}" ${addr:+"${addr}"}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl del "${id}" "${addr}"
+	fi
+}
+
+mptcp_lib_pm_nl_flush_endpoint() {
+	local ns=${1}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint flush
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl flush
+	fi
+}
+
+mptcp_lib_pm_nl_show_endpoints() {
+	local ns=${1}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns}" mptcp endpoint show
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl dump
+	fi
+}
+
+mptcp_lib_pm_nl_change_endpoint() {
+	local ns=${1}
+	local id=${2}
+	local flags=${3}
+
+	if mptcp_lib_is_ip_mptcp; then
+		# shellcheck disable=SC2086 # blanks in flags, no double quote
+		ip -n "${ns}" mptcp endpoint change id "${id}" ${flags//","/" "}
+	else
+		ip netns exec "${ns}" ./pm_nl_ctl set id "${id}" flags "${flags}"
+	fi
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.c b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
new file mode 100644
index 000000000000..286164f7246e
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.c
@@ -0,0 +1,884 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <string.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <strings.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <netdb.h>
+#include <netinet/in.h>
+
+#include <linux/tcp.h>
+
+static int pf = AF_INET;
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+#ifndef SOL_MPTCP
+#define SOL_MPTCP 284
+#endif
+
+#ifndef MPTCP_INFO
+struct mptcp_info {
+	__u8	mptcpi_subflows;
+	__u8	mptcpi_add_addr_signal;
+	__u8	mptcpi_add_addr_accepted;
+	__u8	mptcpi_subflows_max;
+	__u8	mptcpi_add_addr_signal_max;
+	__u8	mptcpi_add_addr_accepted_max;
+	__u32	mptcpi_flags;
+	__u32	mptcpi_token;
+	__u64	mptcpi_write_seq;
+	__u64	mptcpi_snd_una;
+	__u64	mptcpi_rcv_nxt;
+	__u8	mptcpi_local_addr_used;
+	__u8	mptcpi_local_addr_max;
+	__u8	mptcpi_csum_enabled;
+	__u32	mptcpi_retransmits;
+	__u64	mptcpi_bytes_retrans;
+	__u64	mptcpi_bytes_sent;
+	__u64	mptcpi_bytes_received;
+	__u64	mptcpi_bytes_acked;
+};
+
+struct mptcp_subflow_data {
+	__u32		size_subflow_data;		/* size of this structure in userspace */
+	__u32		num_subflows;			/* must be 0, set by kernel */
+	__u32		size_kernel;			/* must be 0, set by kernel */
+	__u32		size_user;			/* size of one element in data[] */
+} __attribute__((aligned(8)));
+
+struct mptcp_subflow_addrs {
+	union {
+		__kernel_sa_family_t sa_family;
+		struct sockaddr sa_local;
+		struct sockaddr_in sin_local;
+		struct sockaddr_in6 sin6_local;
+		struct __kernel_sockaddr_storage ss_local;
+	};
+	union {
+		struct sockaddr sa_remote;
+		struct sockaddr_in sin_remote;
+		struct sockaddr_in6 sin6_remote;
+		struct __kernel_sockaddr_storage ss_remote;
+	};
+};
+
+#define MPTCP_INFO		1
+#define MPTCP_TCPINFO		2
+#define MPTCP_SUBFLOW_ADDRS	3
+#endif
+
+#ifndef MPTCP_FULL_INFO
+struct mptcp_subflow_info {
+	__u32				id;
+	struct mptcp_subflow_addrs	addrs;
+};
+
+struct mptcp_full_info {
+	__u32		size_tcpinfo_kernel;	/* must be 0, set by kernel */
+	__u32		size_tcpinfo_user;
+	__u32		size_sfinfo_kernel;	/* must be 0, set by kernel */
+	__u32		size_sfinfo_user;
+	__u32		num_subflows;		/* must be 0, set by kernel (real subflow count) */
+	__u32		size_arrays_user;	/* max subflows that userspace is interested in;
+						 * the buffers at subflow_info/tcp_info
+						 * are respectively at least:
+						 *  size_arrays * size_sfinfo_user
+						 *  size_arrays * size_tcpinfo_user
+						 * bytes wide
+						 */
+	__aligned_u64		subflow_info;
+	__aligned_u64		tcp_info;
+	struct mptcp_info	mptcp_info;
+};
+
+#define MPTCP_FULL_INFO		4
+#endif
+
+struct so_state {
+	struct mptcp_info mi;
+	struct mptcp_info last_sample;
+	struct tcp_info tcp_info;
+	struct mptcp_subflow_addrs addrs;
+	uint64_t mptcpi_rcv_delta;
+	uint64_t tcpi_rcv_delta;
+	bool pkt_stats_avail;
+};
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+static void die_perror(const char *msg)
+{
+	perror(msg);
+	exit(1);
+}
+
+static void die_usage(int r)
+{
+	fprintf(stderr, "Usage: mptcp_sockopt [-6]\n");
+	exit(r);
+}
+
+static void xerror(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	fputc('\n', stderr);
+	exit(1);
+}
+
+static const char *getxinfo_strerr(int err)
+{
+	if (err == EAI_SYSTEM)
+		return strerror(errno);
+
+	return gai_strerror(err);
+}
+
+static void xgetaddrinfo(const char *node, const char *service,
+			 struct addrinfo *hints,
+			 struct addrinfo **res)
+{
+	int err;
+
+again:
+	err = getaddrinfo(node, service, hints, res);
+	if (err) {
+		const char *errstr;
+
+		if (err == EAI_SOCKTYPE) {
+			hints->ai_protocol = IPPROTO_TCP;
+			goto again;
+		}
+
+		errstr = getxinfo_strerr(err);
+
+		fprintf(stderr, "Fatal: getaddrinfo(%s:%s): %s\n",
+			node ? node : "", service ? service : "", errstr);
+		exit(1);
+	}
+}
+
+static int sock_listen_mptcp(const char * const listenaddr,
+			     const char * const port)
+{
+	int sock = -1;
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+		.ai_flags = AI_PASSIVE | AI_NUMERICHOST
+	};
+
+	hints.ai_family = pf;
+
+	struct addrinfo *a, *addr;
+	int one = 1;
+
+	xgetaddrinfo(listenaddr, port, &hints, &addr);
+	hints.ai_family = pf;
+
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, IPPROTO_MPTCP);
+		if (sock < 0)
+			continue;
+
+		if (-1 == setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one,
+				     sizeof(one)))
+			perror("setsockopt");
+
+		if (bind(sock, a->ai_addr, a->ai_addrlen) == 0)
+			break; /* success */
+
+		perror("bind");
+		close(sock);
+		sock = -1;
+	}
+
+	freeaddrinfo(addr);
+
+	if (sock < 0)
+		xerror("could not create listen socket");
+
+	if (listen(sock, 20))
+		die_perror("listen");
+
+	return sock;
+}
+
+static int sock_connect_mptcp(const char * const remoteaddr,
+			      const char * const port, int proto)
+{
+	struct addrinfo hints = {
+		.ai_protocol = IPPROTO_MPTCP,
+		.ai_socktype = SOCK_STREAM,
+	};
+	struct addrinfo *a, *addr;
+	int sock = -1;
+
+	hints.ai_family = pf;
+
+	xgetaddrinfo(remoteaddr, port, &hints, &addr);
+	for (a = addr; a; a = a->ai_next) {
+		sock = socket(a->ai_family, a->ai_socktype, proto);
+		if (sock < 0)
+			continue;
+
+		if (connect(sock, a->ai_addr, a->ai_addrlen) == 0)
+			break; /* success */
+
+		die_perror("connect");
+	}
+
+	if (sock < 0)
+		xerror("could not create connect socket");
+
+	freeaddrinfo(addr);
+	return sock;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "h6")) != -1) {
+		switch (c) {
+		case 'h':
+			die_usage(0);
+			break;
+		case '6':
+			pf = AF_INET6;
+			break;
+		default:
+			die_usage(1);
+			break;
+		}
+	}
+}
+
+static void do_getsockopt_bogus_sf_data(int fd, int optname)
+{
+	struct mptcp_subflow_data good_data;
+	struct bogus_data {
+		struct mptcp_subflow_data d;
+		char buf[2];
+	} bd;
+	socklen_t olen, _olen;
+	int ret;
+
+	memset(&bd, 0, sizeof(bd));
+	memset(&good_data, 0, sizeof(good_data));
+
+	olen = sizeof(good_data);
+	good_data.size_subflow_data = olen;
+
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret < 0); /* 0 size_subflow_data */
+	assert(olen == sizeof(good_data));
+
+	bd.d = good_data;
+
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret == 0);
+	assert(olen == sizeof(good_data));
+	assert(bd.d.num_subflows == 1);
+	assert(bd.d.size_kernel > 0);
+	assert(bd.d.size_user == 0);
+
+	bd.d = good_data;
+	_olen = rand() % olen;
+	olen = _olen;
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret < 0);	/* bogus olen */
+	assert(olen == _olen);	/* must be unchanged */
+
+	bd.d = good_data;
+	olen = sizeof(good_data);
+	bd.d.size_kernel = 1;
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret < 0); /* size_kernel not 0 */
+
+	bd.d = good_data;
+	olen = sizeof(good_data);
+	bd.d.num_subflows = 1;
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret < 0); /* num_subflows not 0 */
+
+	/* forward compat check: larger struct mptcp_subflow_data on 'old' kernel */
+	bd.d = good_data;
+	olen = sizeof(bd);
+	bd.d.size_subflow_data = sizeof(bd);
+
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &olen);
+	assert(ret == 0);
+
+	/* olen must be truncated to real data size filled by kernel: */
+	assert(olen == sizeof(good_data));
+
+	assert(bd.d.size_subflow_data == sizeof(bd));
+
+	bd.d = good_data;
+	bd.d.size_subflow_data += 1;
+	bd.d.size_user = 1;
+	olen = bd.d.size_subflow_data + 1;
+	_olen = olen;
+
+	ret = getsockopt(fd, SOL_MPTCP, optname, &bd, &_olen);
+	assert(ret == 0);
+
+	/* no truncation, kernel should have filled 1 byte of optname payload in buf[1]: */
+	assert(olen == _olen);
+
+	assert(bd.d.size_subflow_data == sizeof(good_data) + 1);
+	assert(bd.buf[0] == 0);
+}
+
+static void do_getsockopt_mptcp_info(struct so_state *s, int fd, size_t w)
+{
+	struct mptcp_info i;
+	socklen_t olen;
+	int ret;
+
+	olen = sizeof(i);
+	ret = getsockopt(fd, SOL_MPTCP, MPTCP_INFO, &i, &olen);
+
+	if (ret < 0)
+		die_perror("getsockopt MPTCP_INFO");
+
+	s->pkt_stats_avail = olen >= sizeof(i);
+
+	s->last_sample = i;
+	if (s->mi.mptcpi_write_seq == 0)
+		s->mi = i;
+
+	assert(s->mi.mptcpi_write_seq + w == i.mptcpi_write_seq);
+
+	s->mptcpi_rcv_delta = i.mptcpi_rcv_nxt - s->mi.mptcpi_rcv_nxt;
+}
+
+static void do_getsockopt_tcp_info(struct so_state *s, int fd, size_t r, size_t w)
+{
+	struct my_tcp_info {
+		struct mptcp_subflow_data d;
+		struct tcp_info ti[2];
+	} ti;
+	int ret, tries = 5;
+	socklen_t olen;
+
+	do {
+		memset(&ti, 0, sizeof(ti));
+
+		ti.d.size_subflow_data = sizeof(struct mptcp_subflow_data);
+		ti.d.size_user = sizeof(struct tcp_info);
+		olen = sizeof(ti);
+
+		ret = getsockopt(fd, SOL_MPTCP, MPTCP_TCPINFO, &ti, &olen);
+		if (ret < 0)
+			xerror("getsockopt MPTCP_TCPINFO (tries %d, %m)");
+
+		assert(olen <= sizeof(ti));
+		assert(ti.d.size_kernel > 0);
+		assert(ti.d.size_user ==
+		       MIN(ti.d.size_kernel, sizeof(struct tcp_info)));
+		assert(ti.d.num_subflows == 1);
+
+		assert(olen > (socklen_t)sizeof(struct mptcp_subflow_data));
+		olen -= sizeof(struct mptcp_subflow_data);
+		assert(olen == ti.d.size_user);
+
+		s->tcp_info = ti.ti[0];
+
+		if (ti.ti[0].tcpi_bytes_sent == w &&
+		    ti.ti[0].tcpi_bytes_received == r)
+			goto done;
+
+		if (r == 0 && ti.ti[0].tcpi_bytes_sent == w &&
+		    ti.ti[0].tcpi_bytes_received) {
+			s->tcpi_rcv_delta = ti.ti[0].tcpi_bytes_received;
+			goto done;
+		}
+
+		/* wait and repeat, might be that tx is still ongoing */
+		sleep(1);
+	} while (tries-- > 0);
+
+	xerror("tcpi_bytes_sent %" PRIu64 ", want %zu. tcpi_bytes_received %" PRIu64 ", want %zu",
+		ti.ti[0].tcpi_bytes_sent, w, ti.ti[0].tcpi_bytes_received, r);
+
+done:
+	do_getsockopt_bogus_sf_data(fd, MPTCP_TCPINFO);
+}
+
+static void do_getsockopt_subflow_addrs(struct so_state *s, int fd)
+{
+	struct sockaddr_storage remote, local;
+	socklen_t olen, rlen, llen;
+	int ret;
+	struct my_addrs {
+		struct mptcp_subflow_data d;
+		struct mptcp_subflow_addrs addr[2];
+	} addrs;
+
+	memset(&addrs, 0, sizeof(addrs));
+	memset(&local, 0, sizeof(local));
+	memset(&remote, 0, sizeof(remote));
+
+	addrs.d.size_subflow_data = sizeof(struct mptcp_subflow_data);
+	addrs.d.size_user = sizeof(struct mptcp_subflow_addrs);
+	olen = sizeof(addrs);
+
+	ret = getsockopt(fd, SOL_MPTCP, MPTCP_SUBFLOW_ADDRS, &addrs, &olen);
+	if (ret < 0)
+		die_perror("getsockopt MPTCP_SUBFLOW_ADDRS");
+
+	assert(olen <= sizeof(addrs));
+	assert(addrs.d.size_kernel > 0);
+	assert(addrs.d.size_user ==
+	       MIN(addrs.d.size_kernel, sizeof(struct mptcp_subflow_addrs)));
+	assert(addrs.d.num_subflows == 1);
+
+	assert(olen > (socklen_t)sizeof(struct mptcp_subflow_data));
+	olen -= sizeof(struct mptcp_subflow_data);
+	assert(olen == addrs.d.size_user);
+
+	llen = sizeof(local);
+	ret = getsockname(fd, (struct sockaddr *)&local, &llen);
+	if (ret < 0)
+		die_perror("getsockname");
+	rlen = sizeof(remote);
+	ret = getpeername(fd, (struct sockaddr *)&remote, &rlen);
+	if (ret < 0)
+		die_perror("getpeername");
+
+	assert(rlen > 0);
+	assert(rlen == llen);
+
+	assert(remote.ss_family == local.ss_family);
+
+	assert(memcmp(&local, &addrs.addr[0].ss_local, sizeof(local)) == 0);
+	assert(memcmp(&remote, &addrs.addr[0].ss_remote, sizeof(remote)) == 0);
+	s->addrs = addrs.addr[0];
+
+	memset(&addrs, 0, sizeof(addrs));
+
+	addrs.d.size_subflow_data = sizeof(struct mptcp_subflow_data);
+	addrs.d.size_user = sizeof(sa_family_t);
+	olen = sizeof(addrs.d) + sizeof(sa_family_t);
+
+	ret = getsockopt(fd, SOL_MPTCP, MPTCP_SUBFLOW_ADDRS, &addrs, &olen);
+	assert(ret == 0);
+	assert(olen == sizeof(addrs.d) + sizeof(sa_family_t));
+
+	assert(addrs.addr[0].sa_family == pf);
+	assert(addrs.addr[0].sa_family == local.ss_family);
+
+	assert(memcmp(&local, &addrs.addr[0].ss_local, sizeof(local)) != 0);
+	assert(memcmp(&remote, &addrs.addr[0].ss_remote, sizeof(remote)) != 0);
+
+	do_getsockopt_bogus_sf_data(fd, MPTCP_SUBFLOW_ADDRS);
+}
+
+static void do_getsockopt_mptcp_full_info(struct so_state *s, int fd)
+{
+	size_t data_size = sizeof(struct mptcp_full_info);
+	struct mptcp_subflow_info sfinfo[2];
+	struct tcp_info tcp_info[2];
+	struct mptcp_full_info mfi;
+	socklen_t olen;
+	int ret;
+
+	memset(&mfi, 0, data_size);
+	memset(tcp_info, 0, sizeof(tcp_info));
+	memset(sfinfo, 0, sizeof(sfinfo));
+
+	mfi.size_tcpinfo_user = sizeof(struct tcp_info);
+	mfi.size_sfinfo_user = sizeof(struct mptcp_subflow_info);
+	mfi.size_arrays_user = 2;
+	mfi.subflow_info = (unsigned long)&sfinfo[0];
+	mfi.tcp_info = (unsigned long)&tcp_info[0];
+	olen = data_size;
+
+	ret = getsockopt(fd, SOL_MPTCP, MPTCP_FULL_INFO, &mfi, &olen);
+	if (ret < 0) {
+		if (errno == EOPNOTSUPP) {
+			perror("MPTCP_FULL_INFO test skipped");
+			return;
+		}
+		xerror("getsockopt MPTCP_FULL_INFO");
+	}
+
+	assert(olen <= data_size);
+	assert(mfi.size_tcpinfo_kernel > 0);
+	assert(mfi.size_tcpinfo_user ==
+	       MIN(mfi.size_tcpinfo_kernel, sizeof(struct tcp_info)));
+	assert(mfi.size_sfinfo_kernel > 0);
+	assert(mfi.size_sfinfo_user ==
+	       MIN(mfi.size_sfinfo_kernel, sizeof(struct mptcp_subflow_info)));
+	assert(mfi.num_subflows == 1);
+
+	/* Tolerate future extension to mptcp_info struct and running newer
+	 * test on top of older kernel.
+	 * Anyway any kernel supporting MPTCP_FULL_INFO must at least include
+	 * the following in mptcp_info.
+	 */
+	assert(olen > (socklen_t)__builtin_offsetof(struct mptcp_full_info, tcp_info));
+	assert(mfi.mptcp_info.mptcpi_subflows == 0);
+	assert(mfi.mptcp_info.mptcpi_bytes_sent == s->last_sample.mptcpi_bytes_sent);
+	assert(mfi.mptcp_info.mptcpi_bytes_received == s->last_sample.mptcpi_bytes_received);
+
+	assert(sfinfo[0].id == 1);
+	assert(tcp_info[0].tcpi_bytes_sent == s->tcp_info.tcpi_bytes_sent);
+	assert(tcp_info[0].tcpi_bytes_received == s->tcp_info.tcpi_bytes_received);
+	assert(!memcmp(&sfinfo->addrs, &s->addrs, sizeof(struct mptcp_subflow_addrs)));
+}
+
+static void do_getsockopts(struct so_state *s, int fd, size_t r, size_t w)
+{
+	do_getsockopt_mptcp_info(s, fd, w);
+
+	do_getsockopt_tcp_info(s, fd, r, w);
+
+	do_getsockopt_subflow_addrs(s, fd);
+
+	if (r)
+		do_getsockopt_mptcp_full_info(s, fd);
+}
+
+static void connect_one_server(int fd, int pipefd)
+{
+	char buf[4096], buf2[4096];
+	size_t len, i, total;
+	struct so_state s;
+	bool eof = false;
+	ssize_t ret;
+
+	memset(&s, 0, sizeof(s));
+
+	len = rand() % (sizeof(buf) - 1);
+
+	if (len < 128)
+		len = 128;
+
+	for (i = 0; i < len ; i++) {
+		buf[i] = rand() % 26;
+		buf[i] += 'A';
+	}
+
+	buf[i] = '\n';
+
+	do_getsockopts(&s, fd, 0, 0);
+
+	/* un-block server */
+	ret = read(pipefd, buf2, 4);
+	assert(ret == 4);
+	close(pipefd);
+
+	assert(strncmp(buf2, "xmit", 4) == 0);
+
+	ret = write(fd, buf, len);
+	if (ret < 0)
+		die_perror("write");
+
+	if (ret != (ssize_t)len)
+		xerror("short write");
+
+	total = 0;
+	do {
+		ret = read(fd, buf2 + total, sizeof(buf2) - total);
+		if (ret < 0)
+			die_perror("read");
+		if (ret == 0) {
+			eof = true;
+			break;
+		}
+
+		total += ret;
+	} while (total < len);
+
+	if (total != len)
+		xerror("total %lu, len %lu eof %d\n", total, len, eof);
+
+	if (memcmp(buf, buf2, len))
+		xerror("data corruption");
+
+	if (s.tcpi_rcv_delta)
+		assert(s.tcpi_rcv_delta <= total);
+
+	do_getsockopts(&s, fd, ret, ret);
+
+	if (eof)
+		total += 1; /* sequence advances due to FIN */
+
+	assert(s.mptcpi_rcv_delta == (uint64_t)total);
+	close(fd);
+}
+
+static void process_one_client(int fd, int pipefd)
+{
+	ssize_t ret, ret2, ret3;
+	struct so_state s;
+	char buf[4096];
+
+	memset(&s, 0, sizeof(s));
+	do_getsockopts(&s, fd, 0, 0);
+
+	ret = write(pipefd, "xmit", 4);
+	assert(ret == 4);
+
+	ret = read(fd, buf, sizeof(buf));
+	if (ret < 0)
+		die_perror("read");
+
+	assert(s.mptcpi_rcv_delta <= (uint64_t)ret);
+
+	if (s.tcpi_rcv_delta)
+		assert(s.tcpi_rcv_delta == (uint64_t)ret);
+
+	ret2 = write(fd, buf, ret);
+	if (ret2 < 0)
+		die_perror("write");
+
+	/* wait for hangup */
+	ret3 = read(fd, buf, 1);
+	if (ret3 != 0)
+		xerror("expected EOF, got %lu", ret3);
+
+	do_getsockopts(&s, fd, ret, ret2);
+	if (s.mptcpi_rcv_delta != (uint64_t)ret + 1)
+		xerror("mptcpi_rcv_delta %" PRIu64 ", expect %" PRIu64 ", diff %" PRId64,
+		       s.mptcpi_rcv_delta, ret + 1, s.mptcpi_rcv_delta - (ret + 1));
+
+	/* be nice when running on top of older kernel */
+	if (s.pkt_stats_avail) {
+		if (s.last_sample.mptcpi_bytes_sent != ret2)
+			xerror("mptcpi_bytes_sent %" PRIu64 ", expect %" PRIu64
+			       ", diff %" PRId64,
+			       s.last_sample.mptcpi_bytes_sent, ret2,
+			       s.last_sample.mptcpi_bytes_sent - ret2);
+		if (s.last_sample.mptcpi_bytes_received != ret)
+			xerror("mptcpi_bytes_received %" PRIu64 ", expect %" PRIu64
+			       ", diff %" PRId64,
+			       s.last_sample.mptcpi_bytes_received, ret,
+			       s.last_sample.mptcpi_bytes_received - ret);
+		if (s.last_sample.mptcpi_bytes_acked != ret)
+			xerror("mptcpi_bytes_acked %" PRIu64 ", expect %" PRIu64
+			       ", diff %" PRId64,
+			       s.last_sample.mptcpi_bytes_acked, ret,
+			       s.last_sample.mptcpi_bytes_acked - ret);
+	}
+
+	close(fd);
+}
+
+static int xaccept(int s)
+{
+	int fd = accept(s, NULL, 0);
+
+	if (fd < 0)
+		die_perror("accept");
+
+	return fd;
+}
+
+static int server(int pipefd)
+{
+	int fd = -1, r;
+
+	switch (pf) {
+	case AF_INET:
+		fd = sock_listen_mptcp("127.0.0.1", "15432");
+		break;
+	case AF_INET6:
+		fd = sock_listen_mptcp("::1", "15432");
+		break;
+	default:
+		xerror("Unknown pf %d\n", pf);
+		break;
+	}
+
+	r = write(pipefd, "conn", 4);
+	assert(r == 4);
+
+	alarm(15);
+	r = xaccept(fd);
+
+	process_one_client(r, pipefd);
+
+	close(fd);
+	return 0;
+}
+
+static void test_ip_tos_sockopt(int fd)
+{
+	uint8_t tos_in, tos_out;
+	socklen_t s;
+	int r;
+
+	tos_in = rand() & 0xfc;
+	r = setsockopt(fd, SOL_IP, IP_TOS, &tos_in, sizeof(tos_out));
+	if (r != 0)
+		die_perror("setsockopt IP_TOS");
+
+	tos_out = 0;
+	s = sizeof(tos_out);
+	r = getsockopt(fd, SOL_IP, IP_TOS, &tos_out, &s);
+	if (r != 0)
+		die_perror("getsockopt IP_TOS");
+
+	if (tos_in != tos_out)
+		xerror("tos %x != %x socklen_t %d\n", tos_in, tos_out, s);
+
+	if (s != 1)
+		xerror("tos should be 1 byte");
+
+	s = 0;
+	r = getsockopt(fd, SOL_IP, IP_TOS, &tos_out, &s);
+	if (r != 0)
+		die_perror("getsockopt IP_TOS 0");
+	if (s != 0)
+		xerror("expect socklen_t == 0");
+
+	s = -1;
+	r = getsockopt(fd, SOL_IP, IP_TOS, &tos_out, &s);
+	if (r != -1 && errno != EINVAL)
+		die_perror("getsockopt IP_TOS did not indicate -EINVAL");
+	if (s != -1)
+		xerror("expect socklen_t == -1");
+}
+
+static int client(int pipefd)
+{
+	int fd = -1;
+
+	alarm(15);
+
+	switch (pf) {
+	case AF_INET:
+		fd = sock_connect_mptcp("127.0.0.1", "15432", IPPROTO_MPTCP);
+		break;
+	case AF_INET6:
+		fd = sock_connect_mptcp("::1", "15432", IPPROTO_MPTCP);
+		break;
+	default:
+		xerror("Unknown pf %d\n", pf);
+	}
+
+	test_ip_tos_sockopt(fd);
+
+	connect_one_server(fd, pipefd);
+
+	return 0;
+}
+
+static pid_t xfork(void)
+{
+	pid_t p = fork();
+
+	if (p < 0)
+		die_perror("fork");
+
+	return p;
+}
+
+static int rcheck(int wstatus, const char *what)
+{
+	if (WIFEXITED(wstatus)) {
+		if (WEXITSTATUS(wstatus) == 0)
+			return 0;
+		fprintf(stderr, "%s exited, status=%d\n", what, WEXITSTATUS(wstatus));
+		return WEXITSTATUS(wstatus);
+	} else if (WIFSIGNALED(wstatus)) {
+		xerror("%s killed by signal %d\n", what, WTERMSIG(wstatus));
+	} else if (WIFSTOPPED(wstatus)) {
+		xerror("%s stopped by signal %d\n", what, WSTOPSIG(wstatus));
+	}
+
+	return 111;
+}
+
+static void init_rng(void)
+{
+	int fd = open("/dev/urandom", O_RDONLY);
+
+	if (fd >= 0) {
+		unsigned int foo;
+		ssize_t ret;
+
+		/* can't fail */
+		ret = read(fd, &foo, sizeof(foo));
+		assert(ret == sizeof(foo));
+
+		close(fd);
+		srand(foo);
+	} else {
+		srand(time(NULL));
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int e1, e2, wstatus;
+	pid_t s, c, ret;
+	int pipefds[2];
+
+	parse_opts(argc, argv);
+
+	init_rng();
+
+	e1 = pipe(pipefds);
+	if (e1 < 0)
+		die_perror("pipe");
+
+	s = xfork();
+	if (s == 0) {
+		close(pipefds[0]);
+		ret = server(pipefds[1]);
+		close(pipefds[1]);
+		return ret;
+	}
+
+	close(pipefds[1]);
+
+	/* wait until server bound a socket */
+	e1 = read(pipefds[0], &e1, 4);
+	assert(e1 == 4);
+
+	c = xfork();
+	if (c == 0)
+		return client(pipefds[0]);
+
+	close(pipefds[0]);
+
+	ret = waitpid(s, &wstatus, 0);
+	if (ret == -1)
+		die_perror("waitpid");
+	e1 = rcheck(wstatus, "server");
+	ret = waitpid(c, &wstatus, 0);
+	if (ret == -1)
+		die_perror("waitpid");
+	e2 = rcheck(wstatus, "client");
+
+	return e1 ? e1 : e2;
+}
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
new file mode 100755
index 000000000000..ab8bce06b262
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -0,0 +1,371 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it, especially because there were too many before having
+# address all other issues detected by shellcheck.
+#shellcheck disable=SC2086
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ret=0
+sin=""
+sout=""
+cin=""
+cout=""
+timeout_poll=30
+timeout_test=$((timeout_poll * 2 + 1))
+iptables="iptables"
+ip6tables="ip6tables"
+
+ns1=""
+ns2=""
+ns_sbox=""
+
+usage() {
+	echo "Usage: $0 [ -i ] [ -h ]"
+	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
+	echo -e "\t-h: help"
+}
+
+while getopts "hi" option;do
+	case "$option" in
+	"h")
+		usage "$0"
+		exit ${KSFT_PASS}
+		;;
+	"i")
+		mptcp_lib_set_ip_mptcp
+		;;
+	"?")
+		usage "$0"
+		exit ${KSFT_FAIL}
+		;;
+	esac
+done
+
+add_mark_rules()
+{
+	local ns=$1
+	local m=$2
+
+	local t
+	for t in ${iptables} ${ip6tables}; do
+		# just to debug: check we have multiple subflows connection requests
+		ip netns exec $ns $t -A OUTPUT -p tcp --syn -m mark --mark $m -j ACCEPT
+
+		# RST packets might be handled by a internal dummy socket
+		ip netns exec $ns $t -A OUTPUT -p tcp --tcp-flags RST RST -m mark --mark 0 -j ACCEPT
+
+		ip netns exec $ns $t -A OUTPUT -p tcp -m mark --mark $m -j ACCEPT
+		ip netns exec $ns $t -A OUTPUT -p tcp -m mark --mark 0 -j DROP
+	done
+}
+
+init()
+{
+	mptcp_lib_ns_init ns1 ns2 ns_sbox
+
+	local i
+	for i in $(seq 1 4); do
+		ip link add ns1eth$i netns "$ns1" type veth peer name ns2eth$i netns "$ns2"
+		ip -net "$ns1" addr add 10.0.$i.1/24 dev ns1eth$i
+		ip -net "$ns1" addr add dead:beef:$i::1/64 dev ns1eth$i nodad
+		ip -net "$ns1" link set ns1eth$i up
+
+		ip -net "$ns2" addr add 10.0.$i.2/24 dev ns2eth$i
+		ip -net "$ns2" addr add dead:beef:$i::2/64 dev ns2eth$i nodad
+		ip -net "$ns2" link set ns2eth$i up
+
+		# let $ns2 reach any $ns1 address from any interface
+		ip -net "$ns2" route add default via 10.0.$i.1 dev ns2eth$i metric 10$i
+
+		mptcp_lib_pm_nl_add_endpoint "${ns1}" "10.0.${i}.1" flags signal
+		mptcp_lib_pm_nl_add_endpoint "${ns1}" "dead:beef:${i}::1" flags signal
+
+		mptcp_lib_pm_nl_add_endpoint "${ns2}" "10.0.${i}.2" flags signal
+		mptcp_lib_pm_nl_add_endpoint "${ns2}" "dead:beef:${i}::2" flags signal
+	done
+
+	mptcp_lib_pm_nl_set_limits "${ns1}" 8 8
+	mptcp_lib_pm_nl_set_limits "${ns2}" 8 8
+
+	add_mark_rules $ns1 1
+	add_mark_rules $ns2 2
+}
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns_sbox}"
+	rm -f "$cin" "$cout"
+	rm -f "$sin" "$sout"
+}
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_kallsyms
+mptcp_lib_check_tools ip "${iptables}" "${ip6tables}"
+
+check_mark()
+{
+	local ns=$1
+	local af=$2
+
+	local tables=${iptables}
+
+	if [ $af -eq 6 ];then
+		tables=${ip6tables}
+	fi
+
+	local counters values
+	counters=$(ip netns exec $ns $tables -v -L OUTPUT | grep DROP)
+	values=${counters%DROP*}
+
+	local v
+	for v in $values; do
+		if [ $v -ne 0 ]; then
+			mptcp_lib_pr_fail "got $tables $values in ns $ns," \
+					  "not 0 - not all expected packets marked"
+			ret=${KSFT_FAIL}
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+print_title()
+{
+	mptcp_lib_print_title "${@}"
+}
+
+do_transfer()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local cl_proto="$3"
+	local srv_proto="$4"
+	local connect_addr="$5"
+
+	local port=12001
+
+	:> "$cout"
+	:> "$sout"
+
+	local mptcp_connect="./mptcp_connect -r 20"
+
+	local local_addr ip
+	if mptcp_lib_is_v6 "${connect_addr}"; then
+		local_addr="::"
+		ip=ipv6
+	else
+		local_addr="0.0.0.0"
+		ip=ipv4
+	fi
+
+	cmsg="TIMESTAMPNS"
+	if mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
+		cmsg+=",TCPINQ"
+	fi
+
+	mptcp_lib_nstat_init "${listener_ns}"
+	mptcp_lib_nstat_init "${connector_ns}"
+
+	ip netns exec ${listener_ns} \
+		$mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} -c "${cmsg}" \
+			${local_addr} < "$sin" > "$sout" &
+	local spid=$!
+
+	mptcp_lib_wait_local_port_listen "${listener_ns}" "${port}"
+
+	ip netns exec ${connector_ns} \
+		$mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} -c "${cmsg}" \
+			$connect_addr < "$cin" > "$cout" &
+
+	local cpid=$!
+
+	mptcp_lib_wait_timeout "${timeout_test}" "${listener_ns}" \
+		"${connector_ns}" "${port}" "${cpid}" "${spid}" &
+	local timeout_pid=$!
+
+	wait $cpid
+	local retc=$?
+	wait $spid
+	local rets=$?
+
+	if kill -0 $timeout_pid; then
+		# Finished before the timeout: kill the background job
+		mptcp_lib_kill_group_wait $timeout_pid
+		timeout_pid=0
+	fi
+
+	mptcp_lib_nstat_get "${listener_ns}"
+	mptcp_lib_nstat_get "${connector_ns}"
+
+	print_title "Transfer ${ip:2}"
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ] || [ ${timeout_pid} -ne 0 ]; then
+		mptcp_lib_pr_fail "client exit code $retc, server $rets"
+		mptcp_lib_pr_err_stats "${listener_ns}" "${connector_ns}" "${port}"
+
+		mptcp_lib_result_fail "transfer ${ip}"
+
+		ret=${KSFT_FAIL}
+		return 1
+	fi
+	if ! mptcp_lib_check_transfer $cin $sout "file received by server"; then
+		rets=1
+	else
+		mptcp_lib_pr_ok
+	fi
+	mptcp_lib_result_code "${rets}" "transfer ${ip}"
+
+	print_title "Mark ${ip:2}"
+	if [ $local_addr = "::" ];then
+		check_mark $listener_ns 6 || retc=1
+		check_mark $connector_ns 6 || retc=1
+	else
+		check_mark $listener_ns 4 || retc=1
+		check_mark $connector_ns 4 || retc=1
+	fi
+
+	mptcp_lib_result_code "${retc}" "mark ${ip}"
+
+	if [ $retc -eq 0 ] && [ $rets -eq 0 ];then
+		mptcp_lib_pr_ok
+		return 0
+	fi
+	mptcp_lib_pr_fail
+
+	return 1
+}
+
+make_file()
+{
+	local name=$1
+	local who=$2
+	local size=$3
+
+	mptcp_lib_make_file $name 1024 $size
+
+	echo "Created $name (size $size KB) containing data sent by $who"
+}
+
+do_mptcp_sockopt_tests()
+{
+	local lret=0
+
+	if ! mptcp_lib_kallsyms_has "mptcp_diag_fill_info$"; then
+		mptcp_lib_pr_skip "MPTCP sockopt not supported"
+		mptcp_lib_result_skip "sockopt"
+		return
+	fi
+
+	ip netns exec "$ns_sbox" ./mptcp_sockopt
+	lret=$?
+
+	print_title "SOL_MPTCP sockopt v4"
+	if [ $lret -ne 0 ]; then
+		mptcp_lib_pr_fail
+		mptcp_lib_result_fail "sockopt v4"
+		ret=$lret
+		return
+	fi
+	mptcp_lib_pr_ok
+	mptcp_lib_result_pass "sockopt v4"
+
+	ip netns exec "$ns_sbox" ./mptcp_sockopt -6
+	lret=$?
+
+	print_title "SOL_MPTCP sockopt v6"
+	if [ $lret -ne 0 ]; then
+		mptcp_lib_pr_fail
+		mptcp_lib_result_fail "sockopt v6"
+		ret=$lret
+		return
+	fi
+	mptcp_lib_pr_ok
+	mptcp_lib_result_pass "sockopt v6"
+}
+
+run_tests()
+{
+	local listener_ns="$1"
+	local connector_ns="$2"
+	local connect_addr="$3"
+	local lret=0
+
+	do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr}
+
+	lret=$?
+
+	if [ $lret -ne 0 ]; then
+		ret=$lret
+		return
+	fi
+}
+
+do_tcpinq_test()
+{
+	print_title "TCP_INQ cmsg/ioctl $*"
+	ip netns exec "$ns_sbox" ./mptcp_inq "$@"
+	local lret=$?
+	if [ $lret -ne 0 ];then
+		ret=$lret
+		mptcp_lib_pr_fail
+		mptcp_lib_result_fail "TCP_INQ: $*"
+		return $lret
+	fi
+
+	mptcp_lib_pr_ok
+	mptcp_lib_result_pass "TCP_INQ: $*"
+	return $lret
+}
+
+do_tcpinq_tests()
+{
+	local lret=0
+
+	if ! mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
+		mptcp_lib_pr_skip "TCP_INQ not supported"
+		mptcp_lib_result_skip "TCP_INQ"
+		return
+	fi
+
+	local args
+	for args in "-t tcp" "-r tcp"; do
+		do_tcpinq_test $args
+		lret=$?
+		if [ $lret -ne 0 ] ; then
+			return $lret
+		fi
+		do_tcpinq_test -6 $args
+		lret=$?
+		if [ $lret -ne 0 ] ; then
+			return $lret
+		fi
+	done
+
+	do_tcpinq_test -r tcp -t tcp
+
+	return $?
+}
+
+sin=$(mktemp)
+sout=$(mktemp)
+cin=$(mktemp)
+cout=$(mktemp)
+init
+make_file "$cin" "client" 1
+make_file "$sin" "server" 1
+trap cleanup EXIT
+mptcp_lib_subtests_last_ts_reset
+
+run_tests $ns1 $ns2 10.0.1.1
+run_tests $ns1 $ns2 dead:beef:1::1
+
+do_mptcp_sockopt_tests
+do_tcpinq_tests
+
+mptcp_lib_result_print_all_tap
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/pm_netlink.sh b/tools/testing/selftests/net/mptcp/pm_netlink.sh
new file mode 100755
index 000000000000..ec6a87588191
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/pm_netlink.sh
@@ -0,0 +1,274 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ret=0
+
+usage() {
+	echo "Usage: $0 [ -i ] [ -h ]"
+	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
+	echo -e "\t-h: help"
+}
+
+optstring=hi
+while getopts "$optstring" option;do
+	case "$option" in
+	"h")
+		usage "$0"
+		exit ${KSFT_PASS}
+		;;
+	"i")
+		mptcp_lib_set_ip_mptcp
+		;;
+	"?")
+		usage "$0"
+		exit ${KSFT_FAIL}
+		;;
+	esac
+done
+
+ns1=""
+err=$(mktemp)
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	rm -f "${err}"
+	mptcp_lib_ns_exit "${ns1}"
+}
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_tools ip
+
+trap cleanup EXIT
+
+mptcp_lib_ns_init ns1
+
+format_limits() {
+	local accept="${1}"
+	local subflows="${2}"
+
+	if mptcp_lib_is_ip_mptcp; then
+		# with a space at the end
+		printf "add_addr_accepted %d subflows %d \n" "${accept}" "${subflows}"
+	else
+		printf "accept %d\nsubflows %d\n" "${accept}" "${subflows}"
+	fi
+}
+
+get_limits() {
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns1}" mptcp limits
+	else
+		ip netns exec "${ns1}" ./pm_nl_ctl limits
+	fi
+}
+
+format_endpoints() {
+	mptcp_lib_pm_nl_format_endpoints "${@}"
+}
+
+# This function is invoked indirectly
+#shellcheck disable=SC2317,SC2329
+get_endpoint() {
+	mptcp_lib_pm_nl_get_endpoint "${ns1}" "${@}"
+}
+
+change_address() {
+	local addr=${1}
+	local flags=${2}
+
+	if mptcp_lib_is_ip_mptcp; then
+		ip -n "${ns1}" mptcp endpoint change "${addr}" "${flags}"
+	else
+		ip netns exec "${ns1}" ./pm_nl_ctl set "${addr}" flags "${flags}"
+	fi
+}
+
+set_limits()
+{
+	mptcp_lib_pm_nl_set_limits "${ns1}" "${@}"
+}
+
+add_endpoint()
+{
+	mptcp_lib_pm_nl_add_endpoint "${ns1}" "${@}"
+}
+
+del_endpoint()
+{
+	mptcp_lib_pm_nl_del_endpoint "${ns1}" "${@}"
+}
+
+flush_endpoint()
+{
+	mptcp_lib_pm_nl_flush_endpoint "${ns1}"
+}
+
+show_endpoints()
+{
+	mptcp_lib_pm_nl_show_endpoints "${ns1}"
+}
+
+change_endpoint()
+{
+	mptcp_lib_pm_nl_change_endpoint "${ns1}" "${@}"
+}
+
+check()
+{
+	local cmd="$1"
+	local expected="$2"
+	local msg="$3"
+	local rc=0
+
+	mptcp_lib_print_title "$msg"
+	mptcp_lib_check_output "${err}" "${cmd}" "${expected}" || rc=${?}
+	if [ ${rc} -eq 2 ]; then
+		mptcp_lib_result_fail "${msg} # error ${rc}"
+		ret=${KSFT_FAIL}
+	elif [ ${rc} -eq 0 ]; then
+		mptcp_lib_print_ok "[ OK ]"
+		mptcp_lib_result_pass "${msg}"
+	elif [ ${rc} -eq 1 ]; then
+		mptcp_lib_result_fail "${msg} # different output"
+		ret=${KSFT_FAIL}
+	fi
+}
+
+mptcp_lib_subtests_last_ts_reset
+
+check "show_endpoints" "" "defaults addr list"
+
+default_limits="$(get_limits)"
+if mptcp_lib_expect_all_features; then
+	check "get_limits" "$(format_limits 0 2)" "defaults limits"
+fi
+
+add_endpoint 10.0.1.1
+add_endpoint 10.0.1.2 flags subflow dev lo
+add_endpoint 10.0.1.3 flags signal,backup
+check "get_endpoint 1" "$(format_endpoints "1,10.0.1.1")" "simple add/get addr"
+
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "2,10.0.1.2,subflow,lo" \
+			    "3,10.0.1.3,signal backup")" "dump addrs"
+
+del_endpoint 2
+check "get_endpoint 2" "" "simple del addr"
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "3,10.0.1.3,signal backup")" "dump addrs after del"
+
+add_endpoint 10.0.1.3 2>/dev/null
+check "get_endpoint 4" "" "duplicate addr"
+
+add_endpoint 10.0.1.4 flags signal
+check "get_endpoint 4" "$(format_endpoints "4,10.0.1.4,signal")" "id addr increment"
+
+for i in $(seq 5 9); do
+	add_endpoint "10.0.1.${i}" flags signal >/dev/null 2>&1
+done
+check "get_endpoint 9" "$(format_endpoints "9,10.0.1.9,signal")" "hard addr limit"
+check "get_endpoint 10" "" "above hard addr limit"
+
+del_endpoint 9
+for i in $(seq 10 255); do
+	add_endpoint 10.0.0.9 id "${i}"
+	del_endpoint "${i}"
+done
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "3,10.0.1.3,signal backup" \
+			    "4,10.0.1.4,signal" \
+			    "5,10.0.1.5,signal" \
+			    "6,10.0.1.6,signal" \
+			    "7,10.0.1.7,signal" \
+			    "8,10.0.1.8,signal")" "id limit"
+
+flush_endpoint
+check "show_endpoints" "" "flush addrs"
+
+set_limits 9 1 2>/dev/null
+check "get_limits" "${default_limits}" "rcv addrs above hard limit"
+
+set_limits 1 9 2>/dev/null
+check "get_limits" "${default_limits}" "subflows above hard limit"
+
+set_limits 8 8
+flush_endpoint  ## to make sure it doesn't affect the limits
+check "get_limits" "$(format_limits 8 8)" "set limits"
+
+flush_endpoint
+add_endpoint 10.0.1.1
+add_endpoint 10.0.1.2
+add_endpoint 10.0.1.3 id 100
+add_endpoint 10.0.1.4
+add_endpoint 10.0.1.5 id 254
+add_endpoint 10.0.1.6
+add_endpoint 10.0.1.7
+add_endpoint 10.0.1.8
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.1.1" \
+			    "2,10.0.1.2" \
+			    "3,10.0.1.7" \
+			    "4,10.0.1.8" \
+			    "100,10.0.1.3" \
+			    "101,10.0.1.4" \
+			    "254,10.0.1.5" \
+			    "255,10.0.1.6")" "set ids"
+
+flush_endpoint
+add_endpoint 10.0.0.1
+add_endpoint 10.0.0.2 id 254
+add_endpoint 10.0.0.3
+add_endpoint 10.0.0.4
+add_endpoint 10.0.0.5 id 253
+add_endpoint 10.0.0.6
+add_endpoint 10.0.0.7
+add_endpoint 10.0.0.8
+check "show_endpoints" \
+	"$(format_endpoints "1,10.0.0.1" \
+			    "2,10.0.0.4" \
+			    "3,10.0.0.6" \
+			    "4,10.0.0.7" \
+			    "5,10.0.0.8" \
+			    "253,10.0.0.5" \
+			    "254,10.0.0.2" \
+			    "255,10.0.0.3")" "wrap-around ids"
+
+flush_endpoint
+add_endpoint 10.0.1.1 flags subflow
+change_address 10.0.1.1 backup
+check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup")" \
+	"set flags (backup)"
+change_address 10.0.1.1 nobackup
+check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
+	"          (nobackup)"
+
+# fullmesh support has been added later
+change_endpoint 1 fullmesh 2>/dev/null
+if show_endpoints | grep -q "fullmesh" ||
+   mptcp_lib_expect_all_features; then
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow fullmesh")" \
+		"          (fullmesh)"
+	change_endpoint 1 nofullmesh
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow")" \
+		"          (nofullmesh)"
+	change_endpoint 1 backup,fullmesh
+	check "show_endpoints" "$(format_endpoints "1,10.0.1.1,subflow backup fullmesh")" \
+		"          (backup,fullmesh)"
+else
+	for st in fullmesh nofullmesh backup,fullmesh; do
+		st="          (${st})"
+		mptcp_lib_print_title "${st}"
+		mptcp_lib_pr_skip
+		mptcp_lib_result_skip "${st}"
+	done
+fi
+
+mptcp_lib_result_print_all_tap
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
new file mode 100644
index 000000000000..65b374232ff5
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
@@ -0,0 +1,1570 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <error.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <linux/rtnetlink.h>
+#include <linux/genetlink.h>
+
+#include "linux/mptcp.h"
+
+#ifndef IPPROTO_MPTCP
+#define IPPROTO_MPTCP 262
+#endif
+
+static void syntax(char *argv[])
+{
+	fprintf(stderr, "%s add|ann|rem|csf|dsf|get|set|del|flush|dump|events|listen|accept [<args>]\n", argv[0]);
+	fprintf(stderr, "\tadd [flags signal|subflow|backup|fullmesh] [id <nr>] [dev <name>] <ip>\n");
+	fprintf(stderr, "\tann <local-ip> id <local-id> token <token> [port <local-port>] [dev <name>]\n");
+	fprintf(stderr, "\trem id <local-id> token <token>\n");
+	fprintf(stderr, "\tcsf lip <local-ip> lid <local-id> rip <remote-ip> rport <remote-port> token <token>\n");
+	fprintf(stderr, "\tdsf lip <local-ip> lport <local-port> rip <remote-ip> rport <remote-port> token <token>\n");
+	fprintf(stderr, "\tdel <id> [<ip>]\n");
+	fprintf(stderr, "\tget <id>\n");
+	fprintf(stderr, "\tset [<ip>] [id <nr>] flags [no]backup|[no]fullmesh [port <nr>] [token <token>] [rip <ip>] [rport <port>]\n");
+	fprintf(stderr, "\tflush\n");
+	fprintf(stderr, "\tdump\n");
+	fprintf(stderr, "\tlimits [<rcv addr max> <subflow max>]\n");
+	fprintf(stderr, "\tevents\n");
+	fprintf(stderr, "\tlisten <local-ip> <local-port>\n");
+	exit(0);
+}
+
+static int init_genl_req(char *data, int family, int cmd, int version)
+{
+	struct nlmsghdr *nh = (void *)data;
+	struct genlmsghdr *gh;
+	int off = 0;
+
+	nh->nlmsg_type = family;
+	nh->nlmsg_flags = NLM_F_REQUEST;
+	nh->nlmsg_len = NLMSG_LENGTH(GENL_HDRLEN);
+	off += NLMSG_ALIGN(sizeof(*nh));
+
+	gh = (void *)(data + off);
+	gh->cmd = cmd;
+	gh->version = version;
+	off += NLMSG_ALIGN(sizeof(*gh));
+	return off;
+}
+
+static int nl_error(struct nlmsghdr *nh)
+{
+	struct nlmsgerr *err = (struct nlmsgerr *)NLMSG_DATA(nh);
+	int len = nh->nlmsg_len - sizeof(*nh);
+	uint32_t off;
+
+	if (len < sizeof(struct nlmsgerr)) {
+		error(1, 0, "netlink error message truncated %d min %ld", len,
+		      sizeof(struct nlmsgerr));
+		return -1;
+	}
+
+	if (err->error) {
+		/* check messages from kernel */
+		struct rtattr *attrs = (struct rtattr *)NLMSG_DATA(nh);
+
+		fprintf(stderr, "netlink error %d (%s)\n",
+			err->error, strerror(-err->error));
+
+		while (RTA_OK(attrs, len)) {
+			if (attrs->rta_type == NLMSGERR_ATTR_MSG)
+				fprintf(stderr, "netlink ext ack msg: %s\n",
+					(char *)RTA_DATA(attrs));
+			if (attrs->rta_type == NLMSGERR_ATTR_OFFS) {
+				memcpy(&off, RTA_DATA(attrs), 4);
+				fprintf(stderr, "netlink err off %d\n",
+					(int)off);
+			}
+			attrs = RTA_NEXT(attrs, len);
+		}
+		return -1;
+	}
+
+	return 0;
+}
+
+static int capture_events(int fd, int event_group)
+{
+	u_int8_t buffer[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+			NLMSG_ALIGN(sizeof(struct genlmsghdr)) + 1024];
+	struct genlmsghdr *ghdr;
+	struct rtattr *attrs;
+	struct nlmsghdr *nh;
+	int ret = 0;
+	int res_len;
+	int msg_len;
+	fd_set rfds;
+
+	if (setsockopt(fd, SOL_NETLINK, NETLINK_ADD_MEMBERSHIP,
+		       &event_group, sizeof(event_group)) < 0)
+		error(1, errno, "could not join the " MPTCP_PM_EV_GRP_NAME " mcast group");
+
+	do {
+		bool server_side = false;
+
+		FD_ZERO(&rfds);
+		FD_SET(fd, &rfds);
+		res_len = NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) + 1024;
+
+		ret = select(FD_SETSIZE, &rfds, NULL, NULL, NULL);
+
+		if (ret < 0)
+			error(1, ret, "error in select() on NL socket");
+
+		res_len = recv(fd, buffer, res_len, 0);
+		if (res_len < 0)
+			error(1, res_len, "error on recv() from NL socket");
+
+		nh = (struct nlmsghdr *)buffer;
+
+		for (; NLMSG_OK(nh, res_len); nh = NLMSG_NEXT(nh, res_len)) {
+			if (nh->nlmsg_type == NLMSG_ERROR)
+				error(1, NLMSG_ERROR, "received invalid NL message");
+
+			ghdr = (struct genlmsghdr *)NLMSG_DATA(nh);
+
+			if (ghdr->cmd == 0)
+				continue;
+
+			fprintf(stderr, "type:%d", ghdr->cmd);
+
+			msg_len = nh->nlmsg_len - NLMSG_LENGTH(GENL_HDRLEN);
+
+			attrs = (struct rtattr *) ((char *) ghdr + GENL_HDRLEN);
+			while (RTA_OK(attrs, msg_len)) {
+				if (attrs->rta_type == MPTCP_ATTR_TOKEN)
+					fprintf(stderr, ",token:%u", *(__u32 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_FAMILY)
+					fprintf(stderr, ",family:%u", *(__u16 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_LOC_ID)
+					fprintf(stderr, ",loc_id:%u", *(__u8 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_REM_ID)
+					fprintf(stderr, ",rem_id:%u", *(__u8 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_SADDR4) {
+					u_int32_t saddr4 = ntohl(*(__u32 *)RTA_DATA(attrs));
+
+					fprintf(stderr, ",saddr4:%u.%u.%u.%u", saddr4 >> 24,
+					       (saddr4 >> 16) & 0xFF, (saddr4 >> 8) & 0xFF,
+					       (saddr4 & 0xFF));
+				} else if (attrs->rta_type == MPTCP_ATTR_SADDR6) {
+					char buf[INET6_ADDRSTRLEN];
+
+					if (inet_ntop(AF_INET6, RTA_DATA(attrs), buf,
+						      sizeof(buf)) != NULL)
+						fprintf(stderr, ",saddr6:%s", buf);
+				} else if (attrs->rta_type == MPTCP_ATTR_DADDR4) {
+					u_int32_t daddr4 = ntohl(*(__u32 *)RTA_DATA(attrs));
+
+					fprintf(stderr, ",daddr4:%u.%u.%u.%u", daddr4 >> 24,
+					       (daddr4 >> 16) & 0xFF, (daddr4 >> 8) & 0xFF,
+					       (daddr4 & 0xFF));
+				} else if (attrs->rta_type == MPTCP_ATTR_DADDR6) {
+					char buf[INET6_ADDRSTRLEN];
+
+					if (inet_ntop(AF_INET6, RTA_DATA(attrs), buf,
+						      sizeof(buf)) != NULL)
+						fprintf(stderr, ",daddr6:%s", buf);
+				} else if (attrs->rta_type == MPTCP_ATTR_SPORT)
+					fprintf(stderr, ",sport:%u",
+						ntohs(*(__u16 *)RTA_DATA(attrs)));
+				else if (attrs->rta_type == MPTCP_ATTR_DPORT)
+					fprintf(stderr, ",dport:%u",
+						ntohs(*(__u16 *)RTA_DATA(attrs)));
+				else if (attrs->rta_type == MPTCP_ATTR_BACKUP)
+					fprintf(stderr, ",backup:%u", *(__u8 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_ERROR)
+					fprintf(stderr, ",error:%u", *(__u8 *)RTA_DATA(attrs));
+				else if (attrs->rta_type == MPTCP_ATTR_SERVER_SIDE)
+					server_side = !!*(__u8 *)RTA_DATA(attrs);
+				else if (attrs->rta_type == MPTCP_ATTR_FLAGS) {
+					__u16 flags = *(__u16 *)RTA_DATA(attrs);
+
+					/* only print when present, easier */
+					if (flags & MPTCP_PM_EV_FLAG_DENY_JOIN_ID0)
+						fprintf(stderr, ",deny_join_id0:1");
+					if (flags & MPTCP_PM_EV_FLAG_SERVER_SIDE)
+						server_side = true;
+				}
+
+				attrs = RTA_NEXT(attrs, msg_len);
+			}
+		}
+		if (server_side)
+			fprintf(stderr, ",server_side:1");
+		fprintf(stderr, "\n");
+	} while (1);
+
+	return 0;
+}
+
+/* do a netlink command and, if max > 0, fetch the reply ; nh's size >1024B */
+static int do_nl_req(int fd, struct nlmsghdr *nh, int len, int max)
+{
+	struct sockaddr_nl nladdr = { .nl_family = AF_NETLINK };
+	socklen_t addr_len;
+	void *data = nh;
+	int rem, ret;
+	int err = 0;
+
+	/* If no expected answer, ask for an ACK to look for errors if any */
+	if (max == 0) {
+		nh->nlmsg_flags |= NLM_F_ACK;
+		max = 1024;
+	}
+
+	nh->nlmsg_len = len;
+	ret = sendto(fd, data, len, 0, (void *)&nladdr, sizeof(nladdr));
+	if (ret != len)
+		error(1, errno, "send netlink: %uB != %uB\n", ret, len);
+
+	addr_len = sizeof(nladdr);
+	rem = ret = recvfrom(fd, data, max, 0, (void *)&nladdr, &addr_len);
+	if (ret < 0)
+		error(1, errno, "recv netlink: %uB\n", ret);
+
+	/* Beware: the NLMSG_NEXT macro updates the 'rem' argument */
+	for (; NLMSG_OK(nh, rem); nh = NLMSG_NEXT(nh, rem)) {
+		if (nh->nlmsg_type == NLMSG_DONE)
+			break;
+
+		if (nh->nlmsg_type == NLMSG_ERROR && nl_error(nh))
+			err = 1;
+	}
+	if (err)
+		error(1, 0, "bailing out due to netlink error[s]");
+	return ret;
+}
+
+static int genl_parse_getfamily(struct nlmsghdr *nlh, int *pm_family,
+				int *events_mcast_grp)
+{
+	struct genlmsghdr *ghdr = NLMSG_DATA(nlh);
+	int len = nlh->nlmsg_len;
+	struct rtattr *attrs;
+	struct rtattr *grps;
+	struct rtattr *grp;
+	int got_events_grp;
+	int got_family;
+	int grps_len;
+	int grp_len;
+
+	if (nlh->nlmsg_type != GENL_ID_CTRL)
+		error(1, errno, "Not a controller message, len=%d type=0x%x\n",
+		      nlh->nlmsg_len, nlh->nlmsg_type);
+
+	len -= NLMSG_LENGTH(GENL_HDRLEN);
+
+	if (len < 0)
+		error(1, errno, "wrong controller message len %d\n", len);
+
+	if (ghdr->cmd != CTRL_CMD_NEWFAMILY)
+		error(1, errno, "Unknown controller command %d\n", ghdr->cmd);
+
+	attrs = (struct rtattr *) ((char *) ghdr + GENL_HDRLEN);
+	got_family = 0;
+	got_events_grp = 0;
+
+	while (RTA_OK(attrs, len)) {
+		if (attrs->rta_type == CTRL_ATTR_FAMILY_ID) {
+			*pm_family = *(__u16 *)RTA_DATA(attrs);
+			got_family = 1;
+		} else if (attrs->rta_type == CTRL_ATTR_MCAST_GROUPS) {
+			grps = RTA_DATA(attrs);
+			grps_len = RTA_PAYLOAD(attrs);
+
+			while (RTA_OK(grps, grps_len)) {
+				grp = RTA_DATA(grps);
+				grp_len = RTA_PAYLOAD(grps);
+				got_events_grp = 0;
+
+				while (RTA_OK(grp, grp_len)) {
+					if (grp->rta_type == CTRL_ATTR_MCAST_GRP_ID)
+						*events_mcast_grp = *(__u32 *)RTA_DATA(grp);
+					else if (grp->rta_type == CTRL_ATTR_MCAST_GRP_NAME &&
+						 !strcmp(RTA_DATA(grp), MPTCP_PM_EV_GRP_NAME))
+						got_events_grp = 1;
+
+					grp = RTA_NEXT(grp, grp_len);
+				}
+
+				if (got_events_grp)
+					break;
+
+				grps = RTA_NEXT(grps, grps_len);
+			}
+		}
+
+		if (got_family && got_events_grp)
+			return 0;
+
+		attrs = RTA_NEXT(attrs, len);
+	}
+
+	error(1, errno, "can't find CTRL_ATTR_FAMILY_ID attr");
+	return -1;
+}
+
+static int resolve_mptcp_pm_netlink(int fd, int *pm_family, int *events_mcast_grp)
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct nlmsghdr *nh;
+	struct rtattr *rta;
+	int namelen;
+	int off = 0;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, GENL_ID_CTRL, CTRL_CMD_GETFAMILY, 0);
+
+	rta = (void *)(data + off);
+	namelen = strlen(MPTCP_PM_NAME) + 1;
+	rta->rta_type = CTRL_ATTR_FAMILY_NAME;
+	rta->rta_len = RTA_LENGTH(namelen);
+	memcpy(RTA_DATA(rta), MPTCP_PM_NAME, namelen);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	do_nl_req(fd, nh, off, sizeof(data));
+	return genl_parse_getfamily((void *)data, pm_family, events_mcast_grp);
+}
+
+int dsf(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct rtattr *rta, *addr;
+	u_int16_t family, port;
+	struct nlmsghdr *nh;
+	u_int32_t token;
+	int addr_start;
+	int off = 0;
+	int arg;
+
+	const char *params[5];
+
+	memset(params, 0, 5 * sizeof(const char *));
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_SUBFLOW_DESTROY,
+			    MPTCP_PM_VER);
+
+	if (argc < 12)
+		syntax(argv);
+
+	/* Params recorded in this order:
+	 * <local-ip>, <local-port>, <remote-ip>, <remote-port>, <token>
+	 */
+	for (arg = 2; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "lip")) {
+			if (++arg >= argc)
+				error(1, 0, " missing local IP");
+
+			params[0] = argv[arg];
+		} else if (!strcmp(argv[arg], "lport")) {
+			if (++arg >= argc)
+				error(1, 0, " missing local port");
+
+			params[1] = argv[arg];
+		} else if (!strcmp(argv[arg], "rip")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote IP");
+
+			params[2] = argv[arg];
+		} else if (!strcmp(argv[arg], "rport")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote port");
+
+			params[3] = argv[arg];
+		} else if (!strcmp(argv[arg], "token")) {
+			if (++arg >= argc)
+				error(1, 0, " missing token");
+
+			params[4] = argv[arg];
+		} else
+			error(1, 0, "unknown keyword %s", argv[arg]);
+	}
+
+	for (arg = 0; arg < 4; arg = arg + 2) {
+		/*  addr header */
+		addr_start = off;
+		addr = (void *)(data + off);
+		addr->rta_type = NLA_F_NESTED |
+			((arg == 0) ? MPTCP_PM_ATTR_ADDR : MPTCP_PM_ATTR_ADDR_REMOTE);
+		addr->rta_len = RTA_LENGTH(0);
+		off += NLMSG_ALIGN(addr->rta_len);
+
+		/*  addr data */
+		rta = (void *)(data + off);
+		if (inet_pton(AF_INET, params[arg], RTA_DATA(rta))) {
+			family = AF_INET;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+			rta->rta_len = RTA_LENGTH(4);
+		} else if (inet_pton(AF_INET6, params[arg], RTA_DATA(rta))) {
+			family = AF_INET6;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+			rta->rta_len = RTA_LENGTH(16);
+		} else
+			error(1, errno, "can't parse ip %s", params[arg]);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* family */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &family, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/*  port */
+		port = atoi(params[arg + 1]);
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &port, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		addr->rta_len = off - addr_start;
+	}
+
+	/* token */
+	token = strtoul(params[4], NULL, 10);
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+	rta->rta_len = RTA_LENGTH(4);
+	memcpy(RTA_DATA(rta), &token, 4);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	do_nl_req(fd, nh, off, 0);
+
+	return 0;
+}
+
+int csf(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	u_int32_t flags = MPTCP_PM_ADDR_FLAG_SUBFLOW;
+	const char *params[5];
+	struct nlmsghdr *nh;
+	struct rtattr *addr;
+	struct rtattr *rta;
+	u_int16_t family;
+	u_int32_t token;
+	u_int16_t port;
+	int addr_start;
+	u_int8_t id;
+	int off = 0;
+	int arg;
+
+	memset(params, 0, 5 * sizeof(const char *));
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_SUBFLOW_CREATE,
+			    MPTCP_PM_VER);
+
+	if (argc < 12)
+		syntax(argv);
+
+	/* Params recorded in this order:
+	 * <local-ip>, <local-id>, <remote-ip>, <remote-port>, <token>
+	 */
+	for (arg = 2; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "lip")) {
+			if (++arg >= argc)
+				error(1, 0, " missing local IP");
+
+			params[0] = argv[arg];
+		} else if (!strcmp(argv[arg], "lid")) {
+			if (++arg >= argc)
+				error(1, 0, " missing local id");
+
+			params[1] = argv[arg];
+		} else if (!strcmp(argv[arg], "rip")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote ip");
+
+			params[2] = argv[arg];
+		} else if (!strcmp(argv[arg], "rport")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote port");
+
+			params[3] = argv[arg];
+		} else if (!strcmp(argv[arg], "token")) {
+			if (++arg >= argc)
+				error(1, 0, " missing token");
+
+			params[4] = argv[arg];
+		} else
+			error(1, 0, "unknown param %s", argv[arg]);
+	}
+
+	for (arg = 0; arg < 4; arg = arg + 2) {
+		/*  addr header */
+		addr_start = off;
+		addr = (void *)(data + off);
+		addr->rta_type = NLA_F_NESTED |
+			((arg == 0) ? MPTCP_PM_ATTR_ADDR : MPTCP_PM_ATTR_ADDR_REMOTE);
+		addr->rta_len = RTA_LENGTH(0);
+		off += NLMSG_ALIGN(addr->rta_len);
+
+		/*  addr data */
+		rta = (void *)(data + off);
+		if (inet_pton(AF_INET, params[arg], RTA_DATA(rta))) {
+			family = AF_INET;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+			rta->rta_len = RTA_LENGTH(4);
+		} else if (inet_pton(AF_INET6, params[arg], RTA_DATA(rta))) {
+			family = AF_INET6;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+			rta->rta_len = RTA_LENGTH(16);
+		} else
+			error(1, errno, "can't parse ip %s", params[arg]);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* family */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &family, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		if (arg == 2) {
+			/*  port */
+			port = atoi(params[arg + 1]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+			rta->rta_len = RTA_LENGTH(2);
+			memcpy(RTA_DATA(rta), &port, 2);
+			off += NLMSG_ALIGN(rta->rta_len);
+		}
+
+		if (arg == 0) {
+			/* id */
+			id = atoi(params[arg + 1]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+			rta->rta_len = RTA_LENGTH(1);
+			memcpy(RTA_DATA(rta), &id, 1);
+			off += NLMSG_ALIGN(rta->rta_len);
+		}
+
+		/* addr flags */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FLAGS;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &flags, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		addr->rta_len = off - addr_start;
+	}
+
+	/* token */
+	token = strtoul(params[4], NULL, 10);
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+	rta->rta_len = RTA_LENGTH(4);
+	memcpy(RTA_DATA(rta), &token, 4);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	do_nl_req(fd, nh, off, 0);
+
+	return 0;
+}
+
+int remove_addr(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct nlmsghdr *nh;
+	struct rtattr *rta;
+	u_int32_t token;
+	u_int8_t id;
+	int off = 0;
+	int arg;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_REMOVE,
+			    MPTCP_PM_VER);
+
+	if (argc < 6)
+		syntax(argv);
+
+	for (arg = 2; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "id")) {
+			if (++arg >= argc)
+				error(1, 0, " missing id value");
+
+			id = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ATTR_LOC_ID;
+			rta->rta_len = RTA_LENGTH(1);
+			memcpy(RTA_DATA(rta), &id, 1);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "token")) {
+			if (++arg >= argc)
+				error(1, 0, " missing token value");
+
+			token = strtoul(argv[arg], NULL, 10);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+			rta->rta_len = RTA_LENGTH(4);
+			memcpy(RTA_DATA(rta), &token, 4);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else
+			error(1, 0, "unknown keyword %s", argv[arg]);
+	}
+
+	do_nl_req(fd, nh, off, 0);
+	return 0;
+}
+
+int announce_addr(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	u_int32_t flags = MPTCP_PM_ADDR_FLAG_SIGNAL;
+	u_int32_t token = UINT_MAX;
+	struct rtattr *rta, *addr;
+	u_int32_t id = UINT_MAX;
+	struct nlmsghdr *nh;
+	u_int16_t family;
+	int addr_start;
+	int off = 0;
+	int arg;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_ANNOUNCE,
+			    MPTCP_PM_VER);
+
+	if (argc < 7)
+		syntax(argv);
+
+	/* local-ip header */
+	addr_start = off;
+	addr = (void *)(data + off);
+	addr->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+	addr->rta_len = RTA_LENGTH(0);
+	off += NLMSG_ALIGN(addr->rta_len);
+
+	/* local-ip data */
+	/* record addr type */
+	rta = (void *)(data + off);
+	if (inet_pton(AF_INET, argv[2], RTA_DATA(rta))) {
+		family = AF_INET;
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+		rta->rta_len = RTA_LENGTH(4);
+	} else if (inet_pton(AF_INET6, argv[2], RTA_DATA(rta))) {
+		family = AF_INET6;
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+		rta->rta_len = RTA_LENGTH(16);
+	} else
+		error(1, errno, "can't parse ip %s", argv[2]);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	/* addr family */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+	rta->rta_len = RTA_LENGTH(2);
+	memcpy(RTA_DATA(rta), &family, 2);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	for (arg = 3; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "id")) {
+			/* local-id */
+			if (++arg >= argc)
+				error(1, 0, " missing id value");
+
+			id = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+			rta->rta_len = RTA_LENGTH(1);
+			memcpy(RTA_DATA(rta), &id, 1);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "dev")) {
+			/* for the if_index */
+			int32_t ifindex;
+
+			if (++arg >= argc)
+				error(1, 0, " missing dev name");
+
+			ifindex = if_nametoindex(argv[arg]);
+			if (!ifindex)
+				error(1, errno, "unknown device %s", argv[arg]);
+
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_IF_IDX;
+			rta->rta_len = RTA_LENGTH(4);
+			memcpy(RTA_DATA(rta), &ifindex, 4);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "port")) {
+			/* local-port (optional) */
+			u_int16_t port;
+
+			if (++arg >= argc)
+				error(1, 0, " missing port value");
+
+			port = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+			rta->rta_len = RTA_LENGTH(2);
+			memcpy(RTA_DATA(rta), &port, 2);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "token")) {
+			/* MPTCP connection token */
+			if (++arg >= argc)
+				error(1, 0, " missing token value");
+
+			token = strtoul(argv[arg], NULL, 10);
+		} else
+			error(1, 0, "unknown keyword %s", argv[arg]);
+	}
+
+	/* addr flags */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ADDR_ATTR_FLAGS;
+	rta->rta_len = RTA_LENGTH(4);
+	memcpy(RTA_DATA(rta), &flags, 4);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	addr->rta_len = off - addr_start;
+
+	if (id == UINT_MAX || token == UINT_MAX)
+		error(1, 0, " missing mandatory inputs");
+
+	/* token */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+	rta->rta_len = RTA_LENGTH(4);
+	memcpy(RTA_DATA(rta), &token, 4);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	do_nl_req(fd, nh, off, 0);
+
+	return 0;
+}
+
+int add_addr(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct rtattr *rta, *nest;
+	struct nlmsghdr *nh;
+	u_int32_t flags = 0;
+	u_int16_t family;
+	int nest_start;
+	u_int8_t id;
+	int off = 0;
+	int arg;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_ADD_ADDR,
+			    MPTCP_PM_VER);
+
+	if (argc < 3)
+		syntax(argv);
+
+	nest_start = off;
+	nest = (void *)(data + off);
+	nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+	nest->rta_len = RTA_LENGTH(0);
+	off += NLMSG_ALIGN(nest->rta_len);
+
+	/* addr data */
+	rta = (void *)(data + off);
+	if (inet_pton(AF_INET, argv[2], RTA_DATA(rta))) {
+		family = AF_INET;
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+		rta->rta_len = RTA_LENGTH(4);
+	} else if (inet_pton(AF_INET6, argv[2], RTA_DATA(rta))) {
+		family = AF_INET6;
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+		rta->rta_len = RTA_LENGTH(16);
+	} else
+		error(1, errno, "can't parse ip %s", argv[2]);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	/* family */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+	rta->rta_len = RTA_LENGTH(2);
+	memcpy(RTA_DATA(rta), &family, 2);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	for (arg = 3; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "flags")) {
+			char *tok, *str;
+
+			/* flags */
+			if (++arg >= argc)
+				error(1, 0, " missing flags value");
+
+			/* do not support flag list yet */
+			for (str = argv[arg]; (tok = strtok(str, ","));
+			     str = NULL) {
+				if (!strcmp(tok, "subflow"))
+					flags |= MPTCP_PM_ADDR_FLAG_SUBFLOW;
+				else if (!strcmp(tok, "signal"))
+					flags |= MPTCP_PM_ADDR_FLAG_SIGNAL;
+				else if (!strcmp(tok, "laminar"))
+					flags |= MPTCP_PM_ADDR_FLAG_LAMINAR;
+				else if (!strcmp(tok, "backup"))
+					flags |= MPTCP_PM_ADDR_FLAG_BACKUP;
+				else if (!strcmp(tok, "fullmesh"))
+					flags |= MPTCP_PM_ADDR_FLAG_FULLMESH;
+				else
+					error(1, errno,
+					      "unknown flag %s", argv[arg]);
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_SIGNAL &&
+			    flags & MPTCP_PM_ADDR_FLAG_FULLMESH) {
+				error(1, errno, "error flag fullmesh");
+			}
+
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_FLAGS;
+			rta->rta_len = RTA_LENGTH(4);
+			memcpy(RTA_DATA(rta), &flags, 4);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "id")) {
+			if (++arg >= argc)
+				error(1, 0, " missing id value");
+
+			id = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+			rta->rta_len = RTA_LENGTH(1);
+			memcpy(RTA_DATA(rta), &id, 1);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "dev")) {
+			int32_t ifindex;
+
+			if (++arg >= argc)
+				error(1, 0, " missing dev name");
+
+			ifindex = if_nametoindex(argv[arg]);
+			if (!ifindex)
+				error(1, errno, "unknown device %s", argv[arg]);
+
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_IF_IDX;
+			rta->rta_len = RTA_LENGTH(4);
+			memcpy(RTA_DATA(rta), &ifindex, 4);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "port")) {
+			u_int16_t port;
+
+			if (++arg >= argc)
+				error(1, 0, " missing port value");
+			if (!(flags & MPTCP_PM_ADDR_FLAG_SIGNAL))
+				error(1, 0, " flags must be signal when using port");
+
+			port = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+			rta->rta_len = RTA_LENGTH(2);
+			memcpy(RTA_DATA(rta), &port, 2);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else
+			error(1, 0, "unknown keyword %s", argv[arg]);
+	}
+	nest->rta_len = off - nest_start;
+
+	do_nl_req(fd, nh, off, 0);
+	return 0;
+}
+
+int del_addr(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct rtattr *rta, *nest;
+	struct nlmsghdr *nh;
+	u_int16_t family;
+	int nest_start;
+	u_int8_t id;
+	int off = 0;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_DEL_ADDR,
+			    MPTCP_PM_VER);
+
+	/* the only argument is the address id (nonzero) */
+	if (argc != 3 && argc != 4)
+		syntax(argv);
+
+	id = atoi(argv[2]);
+	/* zero id with the IP address */
+	if (!id && argc != 4)
+		syntax(argv);
+
+	nest_start = off;
+	nest = (void *)(data + off);
+	nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+	nest->rta_len =  RTA_LENGTH(0);
+	off += NLMSG_ALIGN(nest->rta_len);
+
+	/* build a dummy addr with only the ID set */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+	rta->rta_len = RTA_LENGTH(1);
+	memcpy(RTA_DATA(rta), &id, 1);
+	off += NLMSG_ALIGN(rta->rta_len);
+
+	if (!id) {
+		/* addr data */
+		rta = (void *)(data + off);
+		if (inet_pton(AF_INET, argv[3], RTA_DATA(rta))) {
+			family = AF_INET;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+			rta->rta_len = RTA_LENGTH(4);
+		} else if (inet_pton(AF_INET6, argv[3], RTA_DATA(rta))) {
+			family = AF_INET6;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+			rta->rta_len = RTA_LENGTH(16);
+		} else {
+			error(1, errno, "can't parse ip %s", argv[3]);
+		}
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* family */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &family, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+	nest->rta_len = off - nest_start;
+
+	do_nl_req(fd, nh, off, 0);
+	return 0;
+}
+
+static void print_addr(struct rtattr *attrs, int len)
+{
+	uint16_t family = 0;
+	uint16_t port = 0;
+	char str[1024];
+	uint32_t flags;
+	uint8_t id;
+
+	while (RTA_OK(attrs, len)) {
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_FAMILY)
+			memcpy(&family, RTA_DATA(attrs), 2);
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_PORT)
+			memcpy(&port, RTA_DATA(attrs), 2);
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ADDR4) {
+			if (family != AF_INET)
+				error(1, errno, "wrong IP (v4) for family %d",
+				      family);
+			inet_ntop(AF_INET, RTA_DATA(attrs), str, sizeof(str));
+			printf("%s", str);
+			if (port)
+				printf(" %d", port);
+		}
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ADDR6) {
+			if (family != AF_INET6)
+				error(1, errno, "wrong IP (v6) for family %d",
+				      family);
+			inet_ntop(AF_INET6, RTA_DATA(attrs), str, sizeof(str));
+			printf("%s", str);
+			if (port)
+				printf(" %d", port);
+		}
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_ID) {
+			memcpy(&id, RTA_DATA(attrs), 1);
+			printf("id %d ", id);
+		}
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_FLAGS) {
+			memcpy(&flags, RTA_DATA(attrs), 4);
+
+			printf("flags ");
+			if (flags & MPTCP_PM_ADDR_FLAG_SIGNAL) {
+				printf("signal");
+				flags &= ~MPTCP_PM_ADDR_FLAG_SIGNAL;
+				if (flags)
+					printf(",");
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_SUBFLOW) {
+				printf("subflow");
+				flags &= ~MPTCP_PM_ADDR_FLAG_SUBFLOW;
+				if (flags)
+					printf(",");
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_LAMINAR) {
+				printf("laminar");
+				flags &= ~MPTCP_PM_ADDR_FLAG_LAMINAR;
+				if (flags)
+					printf(",");
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_BACKUP) {
+				printf("backup");
+				flags &= ~MPTCP_PM_ADDR_FLAG_BACKUP;
+				if (flags)
+					printf(",");
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_FULLMESH) {
+				printf("fullmesh");
+				flags &= ~MPTCP_PM_ADDR_FLAG_FULLMESH;
+				if (flags)
+					printf(",");
+			}
+
+			if (flags & MPTCP_PM_ADDR_FLAG_IMPLICIT) {
+				printf("implicit");
+				flags &= ~MPTCP_PM_ADDR_FLAG_IMPLICIT;
+				if (flags)
+					printf(",");
+			}
+
+			/* bump unknown flags, if any */
+			if (flags)
+				printf("0x%x", flags);
+			printf(" ");
+		}
+		if (attrs->rta_type == MPTCP_PM_ADDR_ATTR_IF_IDX) {
+			char name[IF_NAMESIZE], *ret;
+			int32_t ifindex;
+
+			memcpy(&ifindex, RTA_DATA(attrs), 4);
+			ret = if_indextoname(ifindex, name);
+			if (ret)
+				printf("dev %s ", ret);
+			else
+				printf("dev unknown/%d", ifindex);
+		}
+
+		attrs = RTA_NEXT(attrs, len);
+	}
+	printf("\n");
+}
+
+static void print_addrs(struct nlmsghdr *nh, int pm_family, int total_len)
+{
+	struct rtattr *attrs;
+
+	for (; NLMSG_OK(nh, total_len); nh = NLMSG_NEXT(nh, total_len)) {
+		int len = nh->nlmsg_len;
+
+		if (nh->nlmsg_type == NLMSG_DONE)
+			break;
+		if (nh->nlmsg_type == NLMSG_ERROR)
+			nl_error(nh);
+		if (nh->nlmsg_type != pm_family)
+			continue;
+
+		len -= NLMSG_LENGTH(GENL_HDRLEN);
+		attrs = (struct rtattr *) ((char *) NLMSG_DATA(nh) +
+					   GENL_HDRLEN);
+		while (RTA_OK(attrs, len)) {
+			if (attrs->rta_type ==
+			    (MPTCP_PM_ATTR_ADDR | NLA_F_NESTED))
+				print_addr((void *)RTA_DATA(attrs),
+					   attrs->rta_len);
+			attrs = RTA_NEXT(attrs, len);
+		}
+	}
+}
+
+int get_addr(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct rtattr *rta, *nest;
+	struct nlmsghdr *nh;
+	u_int32_t token = 0;
+	int nest_start;
+	u_int8_t id;
+	int off = 0;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_GET_ADDR,
+			    MPTCP_PM_VER);
+
+	/* the only argument is the address id */
+	if (argc != 3 && argc != 5)
+		syntax(argv);
+
+	id = atoi(argv[2]);
+	if (argc == 5 && !strcmp(argv[3], "token"))
+		token = strtoul(argv[4], NULL, 10);
+
+	nest_start = off;
+	nest = (void *)(data + off);
+	nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+	nest->rta_len =  RTA_LENGTH(0);
+	off += NLMSG_ALIGN(nest->rta_len);
+
+	/* build a dummy addr with only the ID set */
+	rta = (void *)(data + off);
+	rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+	rta->rta_len = RTA_LENGTH(1);
+	memcpy(RTA_DATA(rta), &id, 1);
+	off += NLMSG_ALIGN(rta->rta_len);
+	nest->rta_len = off - nest_start;
+
+	/* token */
+	if (token) {
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &token, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+
+	print_addrs(nh, pm_family, do_nl_req(fd, nh, off, sizeof(data)));
+	return 0;
+}
+
+int dump_addrs(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	pid_t pid = getpid();
+	struct nlmsghdr *nh;
+	u_int32_t token = 0;
+	struct rtattr *rta;
+	int off = 0;
+
+	if (argc != 2 && argc != 4)
+		syntax(argv);
+
+	if (argc == 4 && !strcmp(argv[2], "token"))
+		token = strtoul(argv[3], NULL, 10);
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_GET_ADDR,
+			    MPTCP_PM_VER);
+	nh->nlmsg_flags |= NLM_F_DUMP;
+	nh->nlmsg_seq = 1;
+	nh->nlmsg_pid = pid;
+	nh->nlmsg_len = off;
+
+	/* token */
+	if (token) {
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &token, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+
+	print_addrs(nh, pm_family, do_nl_req(fd, nh, off, sizeof(data)));
+	return 0;
+}
+
+int flush_addrs(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct nlmsghdr *nh;
+	int off = 0;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_FLUSH_ADDRS,
+			    MPTCP_PM_VER);
+
+	do_nl_req(fd, nh, off, 0);
+	return 0;
+}
+
+static void print_limits(struct nlmsghdr *nh, int pm_family, int total_len)
+{
+	struct rtattr *attrs;
+	uint32_t max;
+
+	for (; NLMSG_OK(nh, total_len); nh = NLMSG_NEXT(nh, total_len)) {
+		int len = nh->nlmsg_len;
+
+		if (nh->nlmsg_type == NLMSG_DONE)
+			break;
+		if (nh->nlmsg_type == NLMSG_ERROR)
+			nl_error(nh);
+		if (nh->nlmsg_type != pm_family)
+			continue;
+
+		len -= NLMSG_LENGTH(GENL_HDRLEN);
+		attrs = (struct rtattr *) ((char *) NLMSG_DATA(nh) +
+					   GENL_HDRLEN);
+		while (RTA_OK(attrs, len)) {
+			int type = attrs->rta_type;
+
+			if (type != MPTCP_PM_ATTR_RCV_ADD_ADDRS &&
+			    type != MPTCP_PM_ATTR_SUBFLOWS)
+				goto next;
+
+			memcpy(&max, RTA_DATA(attrs), 4);
+			printf("%s %u\n", type == MPTCP_PM_ATTR_SUBFLOWS ?
+					  "subflows" : "accept", max);
+
+next:
+			attrs = RTA_NEXT(attrs, len);
+		}
+	}
+}
+
+int get_set_limits(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	uint32_t rcv_addr = 0, subflows = 0;
+	int cmd, len = sizeof(data);
+	struct nlmsghdr *nh;
+	int off = 0;
+
+	/* limit */
+	if (argc == 4) {
+		rcv_addr = atoi(argv[2]);
+		subflows = atoi(argv[3]);
+		cmd = MPTCP_PM_CMD_SET_LIMITS;
+	} else {
+		cmd = MPTCP_PM_CMD_GET_LIMITS;
+	}
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, cmd, MPTCP_PM_VER);
+
+	/* limit */
+	if (cmd == MPTCP_PM_CMD_SET_LIMITS) {
+		struct rtattr *rta = (void *)(data + off);
+
+		rta->rta_type = MPTCP_PM_ATTR_RCV_ADD_ADDRS;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &rcv_addr, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ATTR_SUBFLOWS;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &subflows, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* do not expect a reply */
+		len = 0;
+	}
+
+	len = do_nl_req(fd, nh, off, len);
+	if (cmd == MPTCP_PM_CMD_GET_LIMITS)
+		print_limits(nh, pm_family, len);
+	return 0;
+}
+
+int add_listener(int argc, char *argv[])
+{
+	struct sockaddr_storage addr;
+	struct sockaddr_in6 *a6;
+	struct sockaddr_in *a4;
+	u_int16_t family = AF_UNSPEC;
+	int enable = 1;
+	int sock;
+	int err;
+
+	if (argc < 4)
+		syntax(argv);
+
+	memset(&addr, 0, sizeof(struct sockaddr_storage));
+	a4 = (struct sockaddr_in *)&addr;
+	a6 = (struct sockaddr_in6 *)&addr;
+
+	if (inet_pton(AF_INET, argv[2], &a4->sin_addr)) {
+		family = AF_INET;
+		a4->sin_family = family;
+		a4->sin_port = htons(atoi(argv[3]));
+	} else if (inet_pton(AF_INET6, argv[2], &a6->sin6_addr)) {
+		family = AF_INET6;
+		a6->sin6_family = family;
+		a6->sin6_port = htons(atoi(argv[3]));
+	} else
+		error(1, errno, "can't parse ip %s", argv[2]);
+
+	sock = socket(family, SOCK_STREAM, IPPROTO_MPTCP);
+	if (sock < 0)
+		error(1, errno, "can't create listener sock\n");
+
+	if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &enable, sizeof(enable))) {
+		close(sock);
+		error(1, errno, "can't set SO_REUSEADDR on listener sock\n");
+	}
+
+	err = bind(sock, (struct sockaddr *)&addr,
+		   ((family == AF_INET) ? sizeof(struct sockaddr_in) :
+		    sizeof(struct sockaddr_in6)));
+
+	if (err == 0 && listen(sock, 30) == 0)
+		pause();
+
+	close(sock);
+	return 0;
+}
+
+int set_flags(int fd, int pm_family, int argc, char *argv[])
+{
+	char data[NLMSG_ALIGN(sizeof(struct nlmsghdr)) +
+		  NLMSG_ALIGN(sizeof(struct genlmsghdr)) +
+		  1024];
+	struct rtattr *rta, *nest;
+	struct nlmsghdr *nh;
+	u_int32_t flags = 0;
+	u_int32_t token = 0;
+	u_int16_t rport = 0;
+	u_int16_t family;
+	void *rip = NULL;
+	int nest_start;
+	int use_id = 0;
+	u_int8_t id;
+	int off = 0;
+	int arg = 2;
+
+	memset(data, 0, sizeof(data));
+	nh = (void *)data;
+	off = init_genl_req(data, pm_family, MPTCP_PM_CMD_SET_FLAGS,
+			    MPTCP_PM_VER);
+
+	if (argc < 3)
+		syntax(argv);
+
+	nest_start = off;
+	nest = (void *)(data + off);
+	nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR;
+	nest->rta_len = RTA_LENGTH(0);
+	off += NLMSG_ALIGN(nest->rta_len);
+
+	if (!strcmp(argv[arg], "id")) {
+		if (++arg >= argc)
+			error(1, 0, " missing id value");
+
+		use_id = 1;
+		id = atoi(argv[arg]);
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_ID;
+		rta->rta_len = RTA_LENGTH(1);
+		memcpy(RTA_DATA(rta), &id, 1);
+		off += NLMSG_ALIGN(rta->rta_len);
+	} else {
+		/* addr data */
+		rta = (void *)(data + off);
+		if (inet_pton(AF_INET, argv[arg], RTA_DATA(rta))) {
+			family = AF_INET;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+			rta->rta_len = RTA_LENGTH(4);
+		} else if (inet_pton(AF_INET6, argv[arg], RTA_DATA(rta))) {
+			family = AF_INET6;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+			rta->rta_len = RTA_LENGTH(16);
+		} else {
+			error(1, errno, "can't parse ip %s", argv[arg]);
+		}
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* family */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &family, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+
+	if (++arg >= argc)
+		error(1, 0, " missing flags keyword");
+
+	for (; arg < argc; arg++) {
+		if (!strcmp(argv[arg], "token")) {
+			if (++arg >= argc)
+				error(1, 0, " missing token value");
+
+			/* token */
+			token = strtoul(argv[arg], NULL, 10);
+		} else if (!strcmp(argv[arg], "flags")) {
+			char *tok, *str;
+
+			/* flags */
+			if (++arg >= argc)
+				error(1, 0, " missing flags value");
+
+			for (str = argv[arg]; (tok = strtok(str, ","));
+			     str = NULL) {
+				if (!strcmp(tok, "backup"))
+					flags |= MPTCP_PM_ADDR_FLAG_BACKUP;
+				else if (!strcmp(tok, "fullmesh"))
+					flags |= MPTCP_PM_ADDR_FLAG_FULLMESH;
+				else if (strcmp(tok, "nobackup") &&
+					 strcmp(tok, "nofullmesh"))
+					error(1, errno,
+					      "unknown flag %s", argv[arg]);
+			}
+
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_FLAGS;
+			rta->rta_len = RTA_LENGTH(4);
+			memcpy(RTA_DATA(rta), &flags, 4);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "port")) {
+			u_int16_t port;
+
+			if (use_id)
+				error(1, 0, " port can't be used with id");
+
+			if (++arg >= argc)
+				error(1, 0, " missing port value");
+
+			port = atoi(argv[arg]);
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+			rta->rta_len = RTA_LENGTH(2);
+			memcpy(RTA_DATA(rta), &port, 2);
+			off += NLMSG_ALIGN(rta->rta_len);
+		} else if (!strcmp(argv[arg], "rport")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote port");
+
+			rport = atoi(argv[arg]);
+		} else if (!strcmp(argv[arg], "rip")) {
+			if (++arg >= argc)
+				error(1, 0, " missing remote ip");
+
+			rip = argv[arg];
+		} else {
+			error(1, 0, "unknown keyword %s", argv[arg]);
+		}
+	}
+	nest->rta_len = off - nest_start;
+
+	/* token */
+	if (token) {
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ATTR_TOKEN;
+		rta->rta_len = RTA_LENGTH(4);
+		memcpy(RTA_DATA(rta), &token, 4);
+		off += NLMSG_ALIGN(rta->rta_len);
+	}
+
+	/* remote addr/port */
+	if (rip) {
+		nest_start = off;
+		nest = (void *)(data + off);
+		nest->rta_type = NLA_F_NESTED | MPTCP_PM_ATTR_ADDR_REMOTE;
+		nest->rta_len = RTA_LENGTH(0);
+		off += NLMSG_ALIGN(nest->rta_len);
+
+		/* addr data */
+		rta = (void *)(data + off);
+		if (inet_pton(AF_INET, rip, RTA_DATA(rta))) {
+			family = AF_INET;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR4;
+			rta->rta_len = RTA_LENGTH(4);
+		} else if (inet_pton(AF_INET6, rip, RTA_DATA(rta))) {
+			family = AF_INET6;
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_ADDR6;
+			rta->rta_len = RTA_LENGTH(16);
+		} else {
+			error(1, errno, "can't parse ip %s", (char *)rip);
+		}
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		/* family */
+		rta = (void *)(data + off);
+		rta->rta_type = MPTCP_PM_ADDR_ATTR_FAMILY;
+		rta->rta_len = RTA_LENGTH(2);
+		memcpy(RTA_DATA(rta), &family, 2);
+		off += NLMSG_ALIGN(rta->rta_len);
+
+		if (rport) {
+			rta = (void *)(data + off);
+			rta->rta_type = MPTCP_PM_ADDR_ATTR_PORT;
+			rta->rta_len = RTA_LENGTH(2);
+			memcpy(RTA_DATA(rta), &rport, 2);
+			off += NLMSG_ALIGN(rta->rta_len);
+		}
+
+		nest->rta_len = off - nest_start;
+	}
+
+	do_nl_req(fd, nh, off, 0);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int events_mcast_grp;
+	int pm_family;
+	int fd;
+
+	if (argc < 2)
+		syntax(argv);
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	if (fd == -1)
+		error(1, errno, "socket netlink");
+
+	resolve_mptcp_pm_netlink(fd, &pm_family, &events_mcast_grp);
+
+	if (!strcmp(argv[1], "add"))
+		return add_addr(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "ann"))
+		return announce_addr(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "rem"))
+		return remove_addr(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "csf"))
+		return csf(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "dsf"))
+		return dsf(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "del"))
+		return del_addr(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "flush"))
+		return flush_addrs(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "get"))
+		return get_addr(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "dump"))
+		return dump_addrs(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "limits"))
+		return get_set_limits(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "set"))
+		return set_flags(fd, pm_family, argc, argv);
+	else if (!strcmp(argv[1], "events"))
+		return capture_events(fd, events_mcast_grp);
+	else if (!strcmp(argv[1], "listen"))
+		return add_listener(argc, argv);
+
+	fprintf(stderr, "unknown sub-command: %s", argv[1]);
+	syntax(argv);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/mptcp/settings b/tools/testing/selftests/net/mptcp/settings
new file mode 100644
index 000000000000..abc5648b59ab
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/settings
@@ -0,0 +1 @@
+timeout=1800
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
new file mode 100755
index 000000000000..806aaa7d2d61
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -0,0 +1,310 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it, especially because there were too many before having
+# address all other issues detected by shellcheck.
+#shellcheck disable=SC2086
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+ns1=""
+ns2=""
+ns3=""
+capture=false
+timeout_poll=30
+timeout_test=$((timeout_poll * 2 + 1))
+# a bit more space: because we have more to display
+MPTCP_LIB_TEST_FORMAT="%02u %-60s"
+ret=0
+bail=0
+slack=50
+large=""
+small=""
+sout=""
+cout=""
+capout=""
+size=0
+
+usage() {
+	echo "Usage: $0 [ -b ] [ -c ] [ -d ] [ -i]"
+	echo -e "\t-b: bail out after first error, otherwise runs all testcases"
+	echo -e "\t-c: capture packets for each test using tcpdump (default: no capture)"
+	echo -e "\t-d: debug this script"
+	echo -e "\t-i: use 'ip mptcp' instead of 'pm_nl_ctl'"
+}
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	rm -f "$cout" "$sout"
+	rm -f "$large" "$small"
+	rm -f "$capout"
+
+	mptcp_lib_ns_exit "${ns1}" "${ns2}" "${ns3}"
+}
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_tools ip tc
+
+#  "$ns1"              ns2                    ns3
+#     ns1eth1    ns2eth1   ns2eth3      ns3eth1
+#            netem
+#     ns1eth2    ns2eth2
+#            netem
+
+setup()
+{
+	large=$(mktemp)
+	small=$(mktemp)
+	sout=$(mktemp)
+	cout=$(mktemp)
+	capout=$(mktemp)
+	size=$((2 * 2048 * 4096))
+
+	dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
+	dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1
+
+	trap cleanup EXIT
+
+	mptcp_lib_ns_init ns1 ns2 ns3
+
+	ip link add ns1eth1 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+	ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth2 netns "$ns2"
+	ip link add ns2eth3 netns "$ns2" type veth peer name ns3eth1 netns "$ns3"
+
+	ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth1
+	ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth1 nodad
+	ip -net "$ns1" link set ns1eth1 up mtu 1500
+	ip -net "$ns1" route add default via 10.0.1.2
+	ip -net "$ns1" route add default via dead:beef:1::2
+
+	ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
+	ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
+	ip -net "$ns1" link set ns1eth2 up mtu 1500
+	ip -net "$ns1" route add default via 10.0.2.2 metric 101
+	ip -net "$ns1" route add default via dead:beef:2::2 metric 101
+
+	mptcp_lib_pm_nl_set_limits "${ns1}" 1 1
+	mptcp_lib_pm_nl_add_endpoint "${ns1}" 10.0.2.1 dev ns1eth2 flags subflow
+
+	ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
+	ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
+	ip -net "$ns2" link set ns2eth1 up mtu 1500
+
+	ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth2
+	ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth2 nodad
+	ip -net "$ns2" link set ns2eth2 up mtu 1500
+
+	ip -net "$ns2" addr add 10.0.3.2/24 dev ns2eth3
+	ip -net "$ns2" addr add dead:beef:3::2/64 dev ns2eth3 nodad
+	ip -net "$ns2" link set ns2eth3 up mtu 1500
+	ip netns exec "$ns2" sysctl -q net.ipv4.ip_forward=1
+	ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.forwarding=1
+
+	ip -net "$ns3" addr add 10.0.3.3/24 dev ns3eth1
+	ip -net "$ns3" addr add dead:beef:3::3/64 dev ns3eth1 nodad
+	ip -net "$ns3" link set ns3eth1 up mtu 1500
+	ip -net "$ns3" route add default via 10.0.3.2
+	ip -net "$ns3" route add default via dead:beef:3::2
+
+	mptcp_lib_pm_nl_set_limits "${ns3}" 1 1
+
+	# debug build can slow down measurably the test program
+	# we use quite tight time limit on the run-time, to ensure
+	# maximum B/W usage.
+	# Use kmemleak/lockdep/kasan/prove_locking presence as a rough
+	# estimate for this being a debug kernel and increase the
+	# maximum run-time accordingly. Observed run times for CI builds
+	# running selftests, including kbuild, were used to determine the
+	# amount of time to add.
+	grep -q ' kmemleak_init$\| lockdep_init$\| kasan_init$\| prove_locking$' /proc/kallsyms && slack=$((slack+550))
+}
+
+do_transfer()
+{
+	local cin=$1
+	local sin=$2
+	local max_time=$3
+	local port
+	port=$((10000+MPTCP_LIB_TEST_COUNTER))
+
+	:> "$cout"
+	:> "$sout"
+	:> "$capout"
+
+	if $capture; then
+		local capuser
+		local rndh="${ns1:4}"
+		if [ -z $SUDO_USER ] ; then
+			capuser=""
+		else
+			capuser="-Z $SUDO_USER"
+		fi
+
+		local capfile="${rndh}-${port}"
+		local capopt="-i any -s 65535 -B 32768 ${capuser}"
+
+		ip netns exec ${ns3}  tcpdump ${capopt} -w "${capfile}-listener.pcap"  >> "${capout}" 2>&1 &
+		local cappid_listener=$!
+
+		ip netns exec ${ns1} tcpdump ${capopt} -w "${capfile}-connector.pcap" >> "${capout}" 2>&1 &
+		local cappid_connector=$!
+
+		sleep 1
+	fi
+
+	mptcp_lib_nstat_init "${ns3}"
+	mptcp_lib_nstat_init "${ns1}"
+
+	ip netns exec ${ns3} \
+		./mptcp_connect -jt ${timeout_poll} -l -p $port -T $max_time \
+			0.0.0.0 < "$sin" > "$sout" &
+	local spid=$!
+
+	mptcp_lib_wait_local_port_listen "${ns3}" "${port}"
+
+	ip netns exec ${ns1} \
+		./mptcp_connect -jt ${timeout_poll} -p $port -T $max_time \
+			10.0.3.3 < "$cin" > "$cout" &
+	local cpid=$!
+
+	mptcp_lib_wait_timeout "${timeout_test}" "${ns3}" "${ns1}" "${port}" \
+		"${cpid}" "${spid}" &
+	local timeout_pid=$!
+
+	wait $cpid
+	local retc=$?
+	wait $spid
+	local rets=$?
+
+	if kill -0 $timeout_pid; then
+		# Finished before the timeout: kill the background job
+		mptcp_lib_kill_group_wait $timeout_pid
+		timeout_pid=0
+	fi
+
+	if $capture; then
+		sleep 1
+		kill ${cappid_listener}
+		kill ${cappid_connector}
+	fi
+
+	mptcp_lib_nstat_get "${ns3}"
+	mptcp_lib_nstat_get "${ns1}"
+
+	cmp $sin $cout > /dev/null 2>&1
+	local cmps=$?
+	cmp $cin $sout > /dev/null 2>&1
+	local cmpc=$?
+
+	if [ $retc -eq 0 ] && [ $rets -eq 0 ] &&
+	   [ $cmpc -eq 0 ] && [ $cmps -eq 0 ] &&
+	   [ $timeout_pid -eq 0 ]; then
+		printf "%-16s" " max $max_time "
+		mptcp_lib_pr_ok
+		cat "$capout"
+		return 0
+	fi
+
+	mptcp_lib_pr_fail "client exit code $retc, server $rets"
+	mptcp_lib_pr_err_stats "${ns3}" "${ns1}" "${port}"
+	ls -l $sin $cout
+	ls -l $cin $sout
+
+	cat "$capout"
+	return 1
+}
+
+run_test()
+{
+	local rate1=$1
+	local rate2=$2
+	local delay1=$3
+	local delay2=$4
+	local lret
+	local dev
+	shift 4
+	local msg=$*
+
+	[ $delay1 -gt 0 ] && delay1="delay ${delay1}ms" || delay1=""
+	[ $delay2 -gt 0 ] && delay2="delay ${delay2}ms" || delay2=""
+
+	for dev in ns1eth1 ns1eth2; do
+		tc -n $ns1 qdisc del dev $dev root >/dev/null 2>&1
+	done
+	for dev in ns2eth1 ns2eth2; do
+		tc -n $ns2 qdisc del dev $dev root >/dev/null 2>&1
+	done
+	tc -n $ns1 qdisc add dev ns1eth1 root netem rate ${rate1}mbit $delay1
+	tc -n $ns1 qdisc add dev ns1eth2 root netem rate ${rate2}mbit $delay2
+	tc -n $ns2 qdisc add dev ns2eth1 root netem rate ${rate1}mbit $delay1
+	tc -n $ns2 qdisc add dev ns2eth2 root netem rate ${rate2}mbit $delay2
+
+	# time is measured in ms, account for transfer size, aggregated link speed
+	# and header overhead (10%)
+	#              ms    byte -> bit   10%        mbit      -> kbit -> bit  10%
+	local time=$((1000 * size  *  8  * 10 / ((rate1 + rate2) * 1000 * 1000 * 9) ))
+
+	# mptcp_connect will do some sleeps to allow the mp_join handshake
+	# completion (see mptcp_connect): 200ms on each side, add some slack
+	time=$((time + 400 + slack))
+
+	mptcp_lib_print_title "$msg"
+	do_transfer $small $large $time
+	lret=$?
+	mptcp_lib_result_code "${lret}" "${msg}"
+	if [ $lret -ne 0 ] && ! mptcp_lib_subtest_is_flaky; then
+		ret=$lret
+		[ $bail -eq 0 ] || exit $ret
+	fi
+
+	msg+=" - reverse direction"
+	mptcp_lib_print_title "${msg}"
+	do_transfer $large $small $time
+	lret=$?
+	mptcp_lib_result_code "${lret}" "${msg}"
+	if [ $lret -ne 0 ] && ! mptcp_lib_subtest_is_flaky; then
+		ret=$lret
+		[ $bail -eq 0 ] || exit $ret
+	fi
+}
+
+while getopts "bcdhi" option;do
+	case "$option" in
+	"h")
+		usage $0
+		exit ${KSFT_PASS}
+		;;
+	"b")
+		bail=1
+		;;
+	"c")
+		capture=true
+		;;
+	"d")
+		set -x
+		;;
+	"i")
+		mptcp_lib_set_ip_mptcp
+		;;
+	"?")
+		usage $0
+		exit ${KSFT_FAIL}
+		;;
+	esac
+done
+
+setup
+mptcp_lib_subtests_last_ts_reset
+run_test 10 10 0 0 "balanced bwidth"
+run_test 10 10 1 25 "balanced bwidth with unbalanced delay"
+
+# we still need some additional infrastructure to pass the following test-cases
+MPTCP_LIB_SUBTEST_FLAKY=1 run_test 10 3 0 0 "unbalanced bwidth"
+run_test 10 3 1 25 "unbalanced bwidth with unbalanced delay"
+run_test 10 3 25 1 "unbalanced bwidth with opposed, unbalanced delay"
+
+mptcp_lib_result_print_all_tap
+exit $ret
diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
new file mode 100755
index 000000000000..e9ae1806ab07
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -0,0 +1,945 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Double quotes to prevent globbing and word splitting is recommended in new
+# code but we accept it.
+#shellcheck disable=SC2086
+
+# Some variables are used below but indirectly, see verify_*_event()
+#shellcheck disable=SC2034
+
+. "$(dirname "${0}")/mptcp_lib.sh"
+
+mptcp_lib_check_mptcp
+mptcp_lib_check_kallsyms
+
+if ! mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
+	echo "userspace pm tests are not supported by the kernel: SKIP"
+	exit ${KSFT_SKIP}
+fi
+mptcp_lib_check_tools ip
+
+ANNOUNCED=${MPTCP_LIB_EVENT_ANNOUNCED}
+REMOVED=${MPTCP_LIB_EVENT_REMOVED}
+SUB_ESTABLISHED=${MPTCP_LIB_EVENT_SUB_ESTABLISHED}
+SUB_CLOSED=${MPTCP_LIB_EVENT_SUB_CLOSED}
+LISTENER_CREATED=${MPTCP_LIB_EVENT_LISTENER_CREATED}
+LISTENER_CLOSED=${MPTCP_LIB_EVENT_LISTENER_CLOSED}
+
+AF_INET=${MPTCP_LIB_AF_INET}
+AF_INET6=${MPTCP_LIB_AF_INET6}
+
+file=""
+server_evts=""
+client_evts=""
+server_evts_pid=0
+client_evts_pid=0
+client4_pid=0
+server4_pid=0
+client6_pid=0
+server6_pid=0
+client4_token=""
+server4_token=""
+client6_token=""
+server6_token=""
+client4_port=0;
+client6_port=0;
+app4_port=50002
+new4_port=50003
+app6_port=50004
+client_addr_id=${RANDOM:0:2}
+server_addr_id=${RANDOM:0:2}
+
+ns1=""
+ns2=""
+ret=0
+test_name=""
+# a bit more space: because we have more to display
+MPTCP_LIB_TEST_FORMAT="%02u %-68s"
+
+print_title()
+{
+	mptcp_lib_pr_info "${1}"
+}
+
+# $1: test name
+print_test()
+{
+	test_name="${1}"
+
+	mptcp_lib_print_title "${test_name}"
+}
+
+test_pass()
+{
+	mptcp_lib_pr_ok
+	mptcp_lib_result_pass "${test_name}"
+}
+
+test_skip()
+{
+	mptcp_lib_pr_skip
+	mptcp_lib_result_skip "${test_name}"
+}
+
+# $1: msg
+test_fail()
+{
+	if [ ${#} -gt 0 ]
+	then
+		mptcp_lib_pr_fail "${@}"
+	fi
+	ret=${KSFT_FAIL}
+	mptcp_lib_result_fail "${test_name}"
+}
+
+# This function is used in the cleanup trap
+#shellcheck disable=SC2317,SC2329
+cleanup()
+{
+	print_title "Cleanup"
+
+	# Terminate the MPTCP connection and related processes
+	local pid
+	for pid in $client4_pid $server4_pid $client6_pid $server6_pid\
+		   $server_evts_pid $client_evts_pid
+	do
+		mptcp_lib_kill_wait $pid
+	done
+
+	mptcp_lib_ns_exit "${ns1}" "${ns2}"
+
+	rm -rf $file $client_evts $server_evts
+
+	mptcp_lib_pr_info "Done"
+}
+
+trap cleanup EXIT
+
+# Create and configure network namespaces for testing
+print_title "Init"
+mptcp_lib_ns_init ns1 ns2
+
+# check path_manager and pm_type sysctl mapping
+if [ -f /proc/sys/net/mptcp/path_manager ]; then
+	ip netns exec "$ns1" sysctl -q net.mptcp.path_manager=userspace
+	pm_type="$(ip netns exec "$ns1" sysctl -n net.mptcp.pm_type)"
+	if [ "${pm_type}" != "1" ]; then
+		test_fail "unexpected pm_type: ${pm_type}"
+		mptcp_lib_result_print_all_tap
+		exit ${KSFT_FAIL}
+	fi
+
+	ip netns exec "$ns1" sysctl -q net.mptcp.path_manager=error 2>/dev/null
+	pm_type="$(ip netns exec "$ns1" sysctl -n net.mptcp.pm_type)"
+	if [ "${pm_type}" != "1" ]; then
+		test_fail "unexpected pm_type after error: ${pm_type}"
+		mptcp_lib_result_print_all_tap
+		exit ${KSFT_FAIL}
+	fi
+
+	ip netns exec "$ns1" sysctl -q net.mptcp.pm_type=0
+	pm_name="$(ip netns exec "$ns1" sysctl -n net.mptcp.path_manager)"
+	if [ "${pm_name}" != "kernel" ]; then
+		test_fail "unexpected path-manager: ${pm_name}"
+		mptcp_lib_result_print_all_tap
+		exit ${KSFT_FAIL}
+	fi
+fi
+
+for i in "$ns1" "$ns2" ;do
+	ip netns exec "$i" sysctl -q net.mptcp.pm_type=1
+done
+
+#  "$ns1"              ns2
+#     ns1eth2    ns2eth1
+
+ip link add ns1eth2 netns "$ns1" type veth peer name ns2eth1 netns "$ns2"
+
+# Add IPv4/v6 addresses to the namespaces
+ip -net "$ns1" addr add 10.0.1.1/24 dev ns1eth2
+ip -net "$ns1" addr add 10.0.2.1/24 dev ns1eth2
+ip -net "$ns1" addr add dead:beef:1::1/64 dev ns1eth2 nodad
+ip -net "$ns1" addr add dead:beef:2::1/64 dev ns1eth2 nodad
+ip -net "$ns1" link set ns1eth2 up
+
+ip -net "$ns2" addr add 10.0.1.2/24 dev ns2eth1
+ip -net "$ns2" addr add 10.0.2.2/24 dev ns2eth1
+ip -net "$ns2" addr add dead:beef:1::2/64 dev ns2eth1 nodad
+ip -net "$ns2" addr add dead:beef:2::2/64 dev ns2eth1 nodad
+ip -net "$ns2" link set ns2eth1 up
+
+file=$(mktemp)
+mptcp_lib_make_file "$file" 2 1
+
+# Capture netlink events over the two network namespaces running
+# the MPTCP client and server
+client_evts=$(mktemp)
+mptcp_lib_events "${ns2}" "${client_evts}" client_evts_pid
+server_evts=$(mktemp)
+mptcp_lib_events "${ns1}" "${server_evts}" server_evts_pid
+sleep 0.5
+mptcp_lib_subtests_last_ts_reset
+
+print_test "Created network namespaces ns1, ns2"
+test_pass
+
+make_connection()
+{
+	local is_v6=$1
+	local app_port=$app4_port
+	local connect_addr="10.0.1.1"
+	local client_addr="10.0.1.2"
+	local listen_addr="0.0.0.0"
+	if [ "$is_v6" = "v6" ]
+	then
+		connect_addr="dead:beef:1::1"
+		client_addr="dead:beef:1::2"
+		listen_addr="::"
+		app_port=$app6_port
+	else
+		is_v6="v4"
+	fi
+
+	# set this on the client side only: will not affect the rest
+	ip netns exec "$ns2" sysctl -q net.mptcp.allow_join_initial_addr_port=0
+
+	:>"$client_evts"
+	:>"$server_evts"
+
+	# Run the server
+	ip netns exec "$ns1" \
+	   ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
+	local server_pid=$!
+
+	mptcp_lib_wait_local_port_listen "${ns1}" "${port}"
+
+	# Run the client, transfer $file and stay connected to the server
+	# to conduct tests
+	ip netns exec "$ns2" \
+	   ./mptcp_connect -s MPTCP -w 300 -m sendfile -p $app_port $connect_addr\
+	   2>&1 > /dev/null < "$file" &
+	local client_pid=$!
+	sleep 1
+
+	# Capture client/server attributes from MPTCP connection netlink events
+
+	local client_token
+	local client_port
+	local client_serverside
+	local client_nojoin
+	local server_token
+	local server_serverside
+	local server_nojoin
+
+	client_token=$(mptcp_lib_evts_get_info token "$client_evts")
+	client_port=$(mptcp_lib_evts_get_info sport "$client_evts")
+	client_serverside=$(mptcp_lib_evts_get_info server_side "$client_evts")
+	client_nojoin=$(mptcp_lib_evts_get_info deny_join_id0 "$client_evts")
+	server_token=$(mptcp_lib_evts_get_info token "$server_evts")
+	server_serverside=$(mptcp_lib_evts_get_info server_side "$server_evts")
+	server_nojoin=$(mptcp_lib_evts_get_info deny_join_id0 "$server_evts")
+
+	print_test "Established IP${is_v6} MPTCP Connection ns2 => ns1"
+	if [ "${client_token}" != "" ] && [ "${server_token}" != "" ] &&
+	   [ "${client_serverside:-0}" = 0 ] && [ "${server_serverside:-0}" = 1 ] &&
+	   [ "${client_nojoin:-0}" = 0 ] && [ "${server_nojoin:-0}" = 1 ]
+	then
+		test_pass
+		print_title "Connection info: ${client_addr}:${client_port} -> ${connect_addr}:${app_port}"
+	else
+		test_fail "Expected tokens (c:${client_token} - s:${server_token}), server (c:${client_serverside} - s:${server_serverside}), nojoin (c:${client_nojoin} - s:${server_nojoin})"
+		mptcp_lib_result_print_all_tap
+		exit ${KSFT_FAIL}
+	fi
+
+	if [ "$is_v6" = "v6" ]
+	then
+		client6_token=$client_token
+		server6_token=$server_token
+		client6_port=$client_port
+		client6_pid=$client_pid
+		server6_pid=$server_pid
+	else
+		client4_token=$client_token
+		server4_token=$server_token
+		client4_port=$client_port
+		client4_pid=$client_pid
+		server4_pid=$server_pid
+	fi
+}
+
+# $@: all var names to check
+check_expected()
+{
+	if mptcp_lib_check_expected "${@}"
+	then
+		test_pass
+		return 0
+	fi
+
+	test_fail
+	return 1
+}
+
+verify_announce_event()
+{
+	local evt=$1
+	local e_type=$2
+	local e_token=$3
+	local e_addr=$4
+	local e_id=$5
+	local e_dport=$6
+	local e_af=$7
+	local type
+	local token
+	local addr
+	local dport
+	local id
+
+	type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
+	token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
+	if [ "$e_af" = "v6" ]
+	then
+		addr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
+	else
+		addr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
+	fi
+	dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
+	id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
+
+	check_expected "type" "token" "addr" "dport" "id"
+}
+
+test_announce()
+{
+	print_title "Announce tests"
+
+	# Capture events on the network namespace running the server
+	:>"$server_evts"
+
+	# ADD_ADDR using an invalid token should result in no action
+	local invalid_token=$(( client4_token - 1))
+	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token $invalid_token id\
+	   $client_addr_id dev ns2eth1 > /dev/null 2>&1
+
+	local type
+	type=$(mptcp_lib_evts_get_info type "$server_evts")
+	print_test "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token"
+	if [ "$type" = "" ]
+	then
+		test_pass
+	else
+		test_fail "type defined: ${type}"
+	fi
+
+	# ADD_ADDR from the client to server machine reusing the subflow port
+	:>"$server_evts"
+	ip netns exec "$ns2"\
+	   ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
+	   ns2eth1
+	print_test "ADD_ADDR id:client 10.0.2.2 (ns2) => ns1, reuse port"
+	sleep 0.5
+	verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
+			      "$client4_port"
+
+	# ADD_ADDR6 from the client to server machine reusing the subflow port
+	:>"$server_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl ann\
+	   dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1
+	print_test "ADD_ADDR6 id:client dead:beef:2::2 (ns2) => ns1, reuse port"
+	sleep 0.5
+	verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
+			      "$client_addr_id" "$client6_port" "v6"
+
+	# ADD_ADDR from the client to server machine using a new port
+	:>"$server_evts"
+	client_addr_id=$((client_addr_id+1))
+	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
+	   $client_addr_id dev ns2eth1 port $new4_port
+	print_test "ADD_ADDR id:client+1 10.0.2.2 (ns2) => ns1, new port"
+	sleep 0.5
+	verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
+			      "$client_addr_id" "$new4_port"
+
+	# Capture events on the network namespace running the client
+	:>"$client_evts"
+
+	# ADD_ADDR from the server to client machine reusing the subflow port
+	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
+	   $server_addr_id dev ns1eth2
+	print_test "ADD_ADDR id:server 10.0.2.1 (ns1) => ns2, reuse port"
+	sleep 0.5
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
+			      "$server_addr_id" "$app4_port"
+
+	# ADD_ADDR6 from the server to client machine reusing the subflow port
+	:>"$client_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
+	   $server_addr_id dev ns1eth2
+	print_test "ADD_ADDR6 id:server dead:beef:2::1 (ns1) => ns2, reuse port"
+	sleep 0.5
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
+			      "$server_addr_id" "$app6_port" "v6"
+
+	# ADD_ADDR from the server to client machine using a new port
+	:>"$client_evts"
+	server_addr_id=$((server_addr_id+1))
+	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
+	   $server_addr_id dev ns1eth2 port $new4_port
+	print_test "ADD_ADDR id:server+1 10.0.2.1 (ns1) => ns2, new port"
+	sleep 0.5
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
+			      "$server_addr_id" "$new4_port"
+}
+
+verify_remove_event()
+{
+	local evt=$1
+	local e_type=$2
+	local e_token=$3
+	local e_id=$4
+	local type
+	local token
+	local id
+
+	type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
+	token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
+	id=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
+
+	check_expected "type" "token" "id"
+}
+
+test_remove()
+{
+	print_title "Remove tests"
+
+	# Capture events on the network namespace running the server
+	:>"$server_evts"
+
+	# RM_ADDR using an invalid token should result in no action
+	local invalid_token=$(( client4_token - 1 ))
+	ip netns exec "$ns2" ./pm_nl_ctl rem token $invalid_token id\
+	   $client_addr_id > /dev/null 2>&1
+	print_test "RM_ADDR id:client ns2 => ns1, invalid token"
+	local type
+	type=$(mptcp_lib_evts_get_info type "$server_evts")
+	if [ "$type" = "" ]
+	then
+		test_pass
+	else
+		test_fail "unexpected type: ${type}"
+	fi
+
+	# RM_ADDR using an invalid addr id should result in no action
+	local invalid_id=$(( client_addr_id + 1 ))
+	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
+	   $invalid_id > /dev/null 2>&1
+	print_test "RM_ADDR id:client+1 ns2 => ns1, invalid id"
+	type=$(mptcp_lib_evts_get_info type "$server_evts")
+	if [ "$type" = "" ]
+	then
+		test_pass
+	else
+		test_fail "unexpected type: ${type}"
+	fi
+
+	# RM_ADDR from the client to server machine
+	:>"$server_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
+	   $client_addr_id
+	print_test "RM_ADDR id:client ns2 => ns1"
+	sleep 0.5
+	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
+
+	# RM_ADDR from the client to server machine
+	:>"$server_evts"
+	client_addr_id=$(( client_addr_id - 1 ))
+	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
+	   $client_addr_id
+	print_test "RM_ADDR id:client-1 ns2 => ns1"
+	sleep 0.5
+	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
+
+	# RM_ADDR6 from the client to server machine
+	:>"$server_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
+	   $client_addr_id
+	print_test "RM_ADDR6 id:client-1 ns2 => ns1"
+	sleep 0.5
+	verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
+
+	# Capture events on the network namespace running the client
+	:>"$client_evts"
+
+	# RM_ADDR from the server to client machine
+	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
+	   $server_addr_id
+	print_test "RM_ADDR id:server ns1 => ns2"
+	sleep 0.5
+	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
+
+	# RM_ADDR from the server to client machine
+	:>"$client_evts"
+	server_addr_id=$(( server_addr_id - 1 ))
+	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
+	   $server_addr_id
+	print_test "RM_ADDR id:server-1 ns1 => ns2"
+	sleep 0.5
+	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
+
+	# RM_ADDR6 from the server to client machine
+	:>"$client_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
+	   $server_addr_id
+	print_test "RM_ADDR6 id:server-1 ns1 => ns2"
+	sleep 0.5
+	verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
+}
+
+verify_subflow_events()
+{
+	local evt=$1
+	local e_type=$2
+	local e_token=$3
+	local e_family=$4
+	local e_saddr=$5
+	local e_daddr=$6
+	local e_dport=$7
+	local e_locid=$8
+	local e_remid=$9
+	shift 2
+	local e_from=$8
+	local e_to=$9
+	local type
+	local token
+	local family
+	local saddr
+	local daddr
+	local dport
+	local locid
+	local remid
+	local info
+	local e_dport_txt
+
+	# only display the fixed ports
+	if [ "${e_dport}" -ge "${app4_port}" ] && [ "${e_dport}" -le "${app6_port}" ]; then
+		e_dport_txt=":${e_dport}"
+	fi
+
+	info="${e_saddr} (${e_from}) => ${e_daddr}${e_dport_txt} (${e_to})"
+
+	if [ "$e_type" = "$SUB_ESTABLISHED" ]
+	then
+		if [ "$e_family" = "$AF_INET6" ]
+		then
+			print_test "CREATE_SUBFLOW6 ${info}"
+		else
+			print_test "CREATE_SUBFLOW ${info}"
+		fi
+	else
+		if [ "$e_family" = "$AF_INET6" ]
+		then
+			print_test "DESTROY_SUBFLOW6 ${info}"
+		else
+			print_test "DESTROY_SUBFLOW ${info}"
+		fi
+	fi
+
+	type=$(mptcp_lib_evts_get_info type "$evt" $e_type)
+	token=$(mptcp_lib_evts_get_info token "$evt" $e_type)
+	family=$(mptcp_lib_evts_get_info family "$evt" $e_type)
+	dport=$(mptcp_lib_evts_get_info dport "$evt" $e_type)
+	locid=$(mptcp_lib_evts_get_info loc_id "$evt" $e_type)
+	remid=$(mptcp_lib_evts_get_info rem_id "$evt" $e_type)
+	if [ "$family" = "$AF_INET6" ]
+	then
+		saddr=$(mptcp_lib_evts_get_info saddr6 "$evt" $e_type)
+		daddr=$(mptcp_lib_evts_get_info daddr6 "$evt" $e_type)
+	else
+		saddr=$(mptcp_lib_evts_get_info saddr4 "$evt" $e_type)
+		daddr=$(mptcp_lib_evts_get_info daddr4 "$evt" $e_type)
+	fi
+
+	check_expected "type" "token" "daddr" "dport" "family" "saddr" "locid" "remid"
+}
+
+test_subflows()
+{
+	print_title "Subflows v4 or v6 only tests"
+
+	# Capture events on the network namespace running the server
+	:>"$server_evts"
+
+	# Attempt to add a listener at 10.0.2.2:<subflow-port>
+	ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
+	   "$client4_port" &
+	local listener_pid=$!
+
+	# ADD_ADDR from client to server machine reusing the subflow port
+	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
+	   $client_addr_id
+	sleep 0.5
+
+	# CREATE_SUBFLOW from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
+	   rport "$client4_port" token "$server4_token"
+	sleep 0.5
+	verify_subflow_events $server_evts $SUB_ESTABLISHED $server4_token $AF_INET "10.0.2.1" \
+			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
+
+	# Delete the listener from the client ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	local sport
+	sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
+	   "$client4_port" token "$server4_token"
+	sleep 0.5
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
+			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
+
+	# RM_ADDR from client to server machine
+	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
+	   "$client4_token"
+	sleep 0.5
+
+	# Attempt to add a listener at dead:beef:2::2:<subflow-port>
+	ip netns exec "$ns2" ./pm_nl_ctl listen dead:beef:2::2\
+	   "$client6_port" &
+	listener_pid=$!
+
+	# ADD_ADDR6 from client to server machine reusing the subflow port
+	:>"$server_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
+	   $client_addr_id
+	sleep 0.5
+
+	# CREATE_SUBFLOW6 from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
+	   dead:beef:2::2 rport "$client6_port" token "$server6_token"
+	sleep 0.5
+	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
+			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
+			      "$client_addr_id" "ns1" "ns2"
+
+	# Delete the listener from the client ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW6 from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
+	   dead:beef:2::2 rport "$client6_port" token "$server6_token"
+	sleep 0.5
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
+			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
+			      "$client_addr_id" "ns1" "ns2"
+
+	# RM_ADDR from client to server machine
+	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
+	   "$client6_token"
+	sleep 0.5
+
+	# Attempt to add a listener at 10.0.2.2:<new-port>
+	ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
+	   $new4_port &
+	listener_pid=$!
+
+	# ADD_ADDR from client to server machine using a new port
+	:>"$server_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
+	   $client_addr_id port $new4_port
+	sleep 0.5
+
+	# CREATE_SUBFLOW from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
+	   $new4_port token "$server4_token"
+	sleep 0.5
+	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
+			      "10.0.2.1" "10.0.2.2" "$new4_port" "23"\
+			      "$client_addr_id" "ns1" "ns2"
+
+	# Delete the listener from the client ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$server_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW from server to client machine
+	:>"$server_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
+	   $new4_port token "$server4_token"
+	sleep 0.5
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
+			      "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
+
+	# RM_ADDR from client to server machine
+	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
+	   "$client4_token"
+
+	# Capture events on the network namespace running the client
+	:>"$client_evts"
+
+	# Attempt to add a listener at 10.0.2.1:<subflow-port>
+	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
+	   $app4_port &
+	listener_pid=$!
+
+	# ADD_ADDR from server to client machine reusing the subflow port
+	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
+	   $server_addr_id
+	sleep 0.5
+
+	# CREATE_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
+	   $app4_port token "$client4_token"
+	sleep 0.5
+	verify_subflow_events $client_evts $SUB_ESTABLISHED $client4_token $AF_INET "10.0.2.2"\
+			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
+
+	# Delete the listener from the server ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
+	   $app4_port token "$client4_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
+			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
+
+	# RM_ADDR from server to client machine
+	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
+	   "$server4_token"
+	sleep 0.5
+
+	# Attempt to add a listener at dead:beef:2::1:<subflow-port>
+	ip netns exec "$ns1" ./pm_nl_ctl listen dead:beef:2::1\
+	   $app6_port &
+	listener_pid=$!
+
+	# ADD_ADDR6 from server to client machine reusing the subflow port
+	:>"$client_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
+	   $server_addr_id
+	sleep 0.5
+
+	# CREATE_SUBFLOW6 from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
+	   dead:beef:2::1 rport $app6_port token "$client6_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
+			      "$AF_INET6" "dead:beef:2::2"\
+			      "dead:beef:2::1" "$app6_port" "23"\
+			      "$server_addr_id" "ns2" "ns1"
+
+	# Delete the listener from the server ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW6 from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
+	   dead:beef:2::1 rport $app6_port token "$client6_token"
+	sleep 0.5
+	verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
+			      "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
+
+	# RM_ADDR6 from server to client machine
+	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
+	   "$server6_token"
+	sleep 0.5
+
+	# Attempt to add a listener at 10.0.2.1:<new-port>
+	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
+	   $new4_port &
+	listener_pid=$!
+
+	# ADD_ADDR from server to client machine using a new port
+	:>"$client_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
+	   $server_addr_id port $new4_port
+	sleep 0.5
+
+	# CREATE_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
+	   $new4_port token "$client4_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
+			      "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
+
+	# Delete the listener from the server ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
+	   $new4_port token "$client4_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
+			      "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
+
+	# RM_ADDR from server to client machine
+	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
+	   "$server4_token"
+}
+
+test_subflows_v4_v6_mix()
+{
+	print_title "Subflows v4 and v6 mix tests"
+
+	# Attempt to add a listener at 10.0.2.1:<subflow-port>
+	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
+	   $app6_port &
+	local listener_pid=$!
+
+	# ADD_ADDR4 from server to client machine reusing the subflow port on
+	# the established v6 connection
+	:>"$client_evts"
+	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server6_token" id\
+	   $server_addr_id dev ns1eth2
+	print_test "ADD_ADDR4 id:server 10.0.2.1 (ns1) => ns2, reuse port"
+	sleep 0.5
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "10.0.2.1"\
+			      "$server_addr_id" "$app6_port"
+
+	# CREATE_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
+	   $app6_port token "$client6_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
+			      "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
+			      "$server_addr_id" "ns2" "ns1"
+
+	# Delete the listener from the server ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sport=$(mptcp_lib_evts_get_info sport "$client_evts" $SUB_ESTABLISHED)
+
+	# DESTROY_SUBFLOW from client to server machine
+	:>"$client_evts"
+	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
+	   $app6_port token "$client6_token"
+	sleep 0.5
+	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
+			      "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\
+			      "$server_addr_id" "ns2" "ns1"
+
+	# RM_ADDR from server to client machine
+	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
+	   "$server6_token"
+	sleep 0.5
+}
+
+test_prio()
+{
+	print_title "Prio tests"
+
+	local count
+
+	# Send MP_PRIO signal from client to server machine
+	ip netns exec "$ns2" ./pm_nl_ctl set 10.0.1.2 port "$client4_port" flags backup token "$client4_token" rip 10.0.1.1 rport "$app4_port"
+	sleep 0.5
+
+	# Check TX
+	print_test "MP_PRIO TX"
+	count=$(mptcp_lib_get_counter "$ns2" "MPTcpExtMPPrioTx")
+	if [ -z "$count" ]; then
+		test_skip
+	elif [ $count != 1 ]; then
+		test_fail "Count != 1: ${count}"
+	else
+		test_pass
+	fi
+
+	# Check RX
+	print_test "MP_PRIO RX"
+	count=$(mptcp_lib_get_counter "$ns1" "MPTcpExtMPPrioRx")
+	if [ -z "$count" ]; then
+		test_skip
+	elif [ $count != 1 ]; then
+		test_fail "Count != 1: ${count}"
+	else
+		test_pass
+	fi
+}
+
+verify_listener_events()
+{
+	if mptcp_lib_verify_listener_events "${@}"; then
+		test_pass
+	else
+		test_fail
+	fi
+}
+
+test_listener()
+{
+	print_title "Listener tests"
+
+	if ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
+		print_test "LISTENER events"
+		test_skip
+		return
+	fi
+
+	# Capture events on the network namespace running the client
+	:>$client_evts
+
+	# Attempt to add a listener at 10.0.2.2:<subflow-port>
+	ip netns exec $ns2 ./pm_nl_ctl listen 10.0.2.2\
+		$client4_port &
+	local listener_pid=$!
+
+	sleep 0.5
+	print_test "CREATE_LISTENER 10.0.2.2 (client port)"
+	verify_listener_events $client_evts $LISTENER_CREATED $AF_INET 10.0.2.2 $client4_port
+
+	# ADD_ADDR from client to server machine reusing the subflow port
+	ip netns exec $ns2 ./pm_nl_ctl ann 10.0.2.2 token $client4_token id\
+		$client_addr_id
+	sleep 0.5
+
+	# CREATE_SUBFLOW from server to client machine
+	ip netns exec $ns1 ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
+		rport $client4_port token $server4_token
+	sleep 0.5
+
+	# Delete the listener from the client ns, if one was created
+	mptcp_lib_kill_wait $listener_pid
+
+	sleep 0.5
+	print_test "CLOSE_LISTENER 10.0.2.2 (client port)"
+	verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port
+}
+
+print_title "Make connections"
+make_connection
+make_connection "v6"
+print_title "Will be using address IDs ${client_addr_id} (client) and ${server_addr_id} (server)"
+
+test_announce
+test_remove
+test_subflows
+test_subflows_v4_v6_mix
+test_prio
+test_listener
+
+mptcp_lib_result_print_all_tap
+exit ${ret}
diff --git a/tools/testing/selftests/net/msg_zerocopy.c b/tools/testing/selftests/net/msg_zerocopy.c
new file mode 100644
index 000000000000..1d5d3c4e7e87
--- /dev/null
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -0,0 +1,827 @@
+/* Evaluate MSG_ZEROCOPY
+ *
+ * Send traffic between two processes over one of the supported
+ * protocols and modes:
+ *
+ * PF_INET/PF_INET6
+ * - SOCK_STREAM
+ * - SOCK_DGRAM
+ * - SOCK_DGRAM with UDP_CORK
+ * - SOCK_RAW
+ * - SOCK_RAW with IP_HDRINCL
+ *
+ * PF_PACKET
+ * - SOCK_DGRAM
+ * - SOCK_RAW
+ *
+ * PF_RDS
+ * - SOCK_SEQPACKET
+ *
+ * Start this program on two connected hosts, one in send mode and
+ * the other with option '-r' to put it in receiver mode.
+ *
+ * If zerocopy mode ('-z') is enabled, the sender will verify that
+ * the kernel queues completions on the error queue for all zerocopy
+ * transfers.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <linux/rds.h>
+
+#ifndef SO_EE_ORIGIN_ZEROCOPY
+#define SO_EE_ORIGIN_ZEROCOPY		5
+#endif
+
+#ifndef SO_ZEROCOPY
+#define SO_ZEROCOPY	60
+#endif
+
+#ifndef SO_EE_CODE_ZEROCOPY_COPIED
+#define SO_EE_CODE_ZEROCOPY_COPIED	1
+#endif
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY	0x4000000
+#endif
+
+static int  cfg_cork;
+static bool cfg_cork_mixed;
+static int  cfg_cpu		= -1;		/* default: pin to last cpu */
+static int  cfg_expect_zerocopy	= -1;
+static int  cfg_family		= PF_UNSPEC;
+static int  cfg_ifindex		= 1;
+static int  cfg_payload_len;
+static int  cfg_port		= 8000;
+static bool cfg_rx;
+static int  cfg_runtime_ms	= 4200;
+static int  cfg_verbose;
+static int  cfg_waittime_ms	= 500;
+static int  cfg_notification_limit = 32;
+static bool cfg_zerocopy;
+
+static socklen_t cfg_alen;
+static struct sockaddr_storage cfg_dst_addr;
+static struct sockaddr_storage cfg_src_addr;
+
+static int exitcode;
+static char payload[IP_MAXPACKET];
+static long packets, bytes, completions, expected_completions;
+static uint32_t next_completion;
+static uint32_t sends_since_notify;
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static uint16_t get_ip_csum(const uint16_t *start, int num_words)
+{
+	unsigned long sum = 0;
+	int i;
+
+	for (i = 0; i < num_words; i++)
+		sum += start[i];
+
+	while (sum >> 16)
+		sum = (sum & 0xFFFF) + (sum >> 16);
+
+	return ~sum;
+}
+
+static int do_setcpu(int cpu)
+{
+	cpu_set_t mask;
+
+	CPU_ZERO(&mask);
+	CPU_SET(cpu, &mask);
+	if (sched_setaffinity(0, sizeof(mask), &mask))
+		fprintf(stderr, "cpu: unable to pin, may increase variance.\n");
+	else if (cfg_verbose)
+		fprintf(stderr, "cpu: %u\n", cpu);
+
+	return 0;
+}
+
+static void do_setsockopt(int fd, int level, int optname, int val)
+{
+	if (setsockopt(fd, level, optname, &val, sizeof(val)))
+		error(1, errno, "setsockopt %d.%d: %d", level, optname, val);
+}
+
+static int do_poll(int fd, int events)
+{
+	struct pollfd pfd;
+	int ret;
+
+	pfd.events = events;
+	pfd.revents = 0;
+	pfd.fd = fd;
+
+	ret = poll(&pfd, 1, cfg_waittime_ms);
+	if (ret == -1)
+		error(1, errno, "poll");
+
+	return ret && (pfd.revents & events);
+}
+
+static int do_accept(int fd)
+{
+	int fda = fd;
+
+	fd = accept(fda, NULL, NULL);
+	if (fd == -1)
+		error(1, errno, "accept");
+	if (close(fda))
+		error(1, errno, "close listen sock");
+
+	return fd;
+}
+
+static void add_zcopy_cookie(struct msghdr *msg, uint32_t cookie)
+{
+	struct cmsghdr *cm;
+
+	if (!msg->msg_control)
+		error(1, errno, "NULL cookie");
+	cm = (void *)msg->msg_control;
+	cm->cmsg_len = CMSG_LEN(sizeof(cookie));
+	cm->cmsg_level = SOL_RDS;
+	cm->cmsg_type = RDS_CMSG_ZCOPY_COOKIE;
+	memcpy(CMSG_DATA(cm), &cookie, sizeof(cookie));
+}
+
+static bool do_sendmsg(int fd, struct msghdr *msg, bool do_zerocopy, int domain)
+{
+	int ret, len, i, flags;
+	static uint32_t cookie;
+	char ckbuf[CMSG_SPACE(sizeof(cookie))];
+
+	len = 0;
+	for (i = 0; i < msg->msg_iovlen; i++)
+		len += msg->msg_iov[i].iov_len;
+
+	flags = MSG_DONTWAIT;
+	if (do_zerocopy) {
+		flags |= MSG_ZEROCOPY;
+		if (domain == PF_RDS) {
+			memset(&msg->msg_control, 0, sizeof(msg->msg_control));
+			msg->msg_controllen = CMSG_SPACE(sizeof(cookie));
+			msg->msg_control = (struct cmsghdr *)ckbuf;
+			add_zcopy_cookie(msg, ++cookie);
+		}
+	}
+
+	ret = sendmsg(fd, msg, flags);
+	if (ret == -1 && errno == EAGAIN)
+		return false;
+	if (ret == -1)
+		error(1, errno, "send");
+	if (cfg_verbose && ret != len)
+		fprintf(stderr, "send: ret=%u != %u\n", ret, len);
+	sends_since_notify++;
+
+	if (len) {
+		packets++;
+		bytes += ret;
+		if (do_zerocopy && ret)
+			expected_completions++;
+	}
+	if (do_zerocopy && domain == PF_RDS) {
+		msg->msg_control = NULL;
+		msg->msg_controllen = 0;
+	}
+
+	return true;
+}
+
+static void do_sendmsg_corked(int fd, struct msghdr *msg)
+{
+	bool do_zerocopy = cfg_zerocopy;
+	int i, payload_len, extra_len;
+
+	/* split up the packet. for non-multiple, make first buffer longer */
+	payload_len = cfg_payload_len / cfg_cork;
+	extra_len = cfg_payload_len - (cfg_cork * payload_len);
+
+	do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 1);
+
+	for (i = 0; i < cfg_cork; i++) {
+
+		/* in mixed-frags mode, alternate zerocopy and copy frags
+		 * start with non-zerocopy, to ensure attach later works
+		 */
+		if (cfg_cork_mixed)
+			do_zerocopy = (i & 1);
+
+		msg->msg_iov[0].iov_len = payload_len + extra_len;
+		extra_len = 0;
+
+		do_sendmsg(fd, msg, do_zerocopy,
+			   (cfg_dst_addr.ss_family == AF_INET ?
+			    PF_INET : PF_INET6));
+	}
+
+	do_setsockopt(fd, IPPROTO_UDP, UDP_CORK, 0);
+}
+
+static int setup_iph(struct iphdr *iph, uint16_t payload_len)
+{
+	struct sockaddr_in *daddr = (void *) &cfg_dst_addr;
+	struct sockaddr_in *saddr = (void *) &cfg_src_addr;
+
+	memset(iph, 0, sizeof(*iph));
+
+	iph->version	= 4;
+	iph->tos	= 0;
+	iph->ihl	= 5;
+	iph->ttl	= 2;
+	iph->saddr	= saddr->sin_addr.s_addr;
+	iph->daddr	= daddr->sin_addr.s_addr;
+	iph->protocol	= IPPROTO_EGP;
+	iph->tot_len	= htons(sizeof(*iph) + payload_len);
+	iph->check	= get_ip_csum((void *) iph, iph->ihl << 1);
+
+	return sizeof(*iph);
+}
+
+static int setup_ip6h(struct ipv6hdr *ip6h, uint16_t payload_len)
+{
+	struct sockaddr_in6 *daddr = (void *) &cfg_dst_addr;
+	struct sockaddr_in6 *saddr = (void *) &cfg_src_addr;
+
+	memset(ip6h, 0, sizeof(*ip6h));
+
+	ip6h->version		= 6;
+	ip6h->payload_len	= htons(payload_len);
+	ip6h->nexthdr		= IPPROTO_EGP;
+	ip6h->hop_limit		= 2;
+	ip6h->saddr		= saddr->sin6_addr;
+	ip6h->daddr		= daddr->sin6_addr;
+
+	return sizeof(*ip6h);
+}
+
+
+static void setup_sockaddr(int domain, const char *str_addr,
+			   struct sockaddr_storage *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (domain) {
+	case PF_INET:
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", str_addr);
+		break;
+	case PF_INET6:
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", str_addr);
+		break;
+	default:
+		error(1, 0, "illegal domain");
+	}
+}
+
+static int do_setup_tx(int domain, int type, int protocol)
+{
+	int fd;
+
+	fd = socket(domain, type, protocol);
+	if (fd == -1)
+		error(1, errno, "socket t");
+
+	do_setsockopt(fd, SOL_SOCKET, SO_SNDBUF, 1 << 21);
+	if (cfg_zerocopy)
+		do_setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, 1);
+
+	if (domain != PF_PACKET && domain != PF_RDS)
+		if (connect(fd, (void *) &cfg_dst_addr, cfg_alen))
+			error(1, errno, "connect");
+
+	if (domain == PF_RDS) {
+		if (bind(fd, (void *) &cfg_src_addr, cfg_alen))
+			error(1, errno, "bind");
+	}
+
+	return fd;
+}
+
+static uint32_t do_process_zerocopy_cookies(struct rds_zcopy_cookies *ck)
+{
+	int i;
+
+	if (ck->num > RDS_MAX_ZCOOKIES)
+		error(1, 0, "Returned %d cookies, max expected %d\n",
+		      ck->num, RDS_MAX_ZCOOKIES);
+	for (i = 0; i < ck->num; i++)
+		if (cfg_verbose >= 2)
+			fprintf(stderr, "%d\n", ck->cookies[i]);
+	return ck->num;
+}
+
+static bool do_recvmsg_completion(int fd)
+{
+	char cmsgbuf[CMSG_SPACE(sizeof(struct rds_zcopy_cookies))];
+	struct rds_zcopy_cookies *ck;
+	struct cmsghdr *cmsg;
+	struct msghdr msg;
+	bool ret = false;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_control = cmsgbuf;
+	msg.msg_controllen = sizeof(cmsgbuf);
+
+	if (recvmsg(fd, &msg, MSG_DONTWAIT))
+		return ret;
+
+	if (msg.msg_flags & MSG_CTRUNC)
+		error(1, errno, "recvmsg notification: truncated");
+
+	for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+		if (cmsg->cmsg_level == SOL_RDS &&
+		    cmsg->cmsg_type == RDS_CMSG_ZCOPY_COMPLETION) {
+
+			ck = (struct rds_zcopy_cookies *)CMSG_DATA(cmsg);
+			completions += do_process_zerocopy_cookies(ck);
+			ret = true;
+			break;
+		}
+		error(0, 0, "ignoring cmsg at level %d type %d\n",
+			    cmsg->cmsg_level, cmsg->cmsg_type);
+	}
+	return ret;
+}
+
+static bool do_recv_completion(int fd, int domain)
+{
+	struct sock_extended_err *serr;
+	struct msghdr msg = {};
+	struct cmsghdr *cm;
+	uint32_t hi, lo, range;
+	int ret, zerocopy;
+	char control[100];
+
+	if (domain == PF_RDS)
+		return do_recvmsg_completion(fd);
+
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+	if (ret == -1 && errno == EAGAIN)
+		return false;
+	if (ret == -1)
+		error(1, errno, "recvmsg notification");
+	if (msg.msg_flags & MSG_CTRUNC)
+		error(1, errno, "recvmsg notification: truncated");
+
+	cm = CMSG_FIRSTHDR(&msg);
+	if (!cm)
+		error(1, 0, "cmsg: no cmsg");
+	if (!((cm->cmsg_level == SOL_IP && cm->cmsg_type == IP_RECVERR) ||
+	      (cm->cmsg_level == SOL_IPV6 && cm->cmsg_type == IPV6_RECVERR) ||
+	      (cm->cmsg_level == SOL_PACKET && cm->cmsg_type == PACKET_TX_TIMESTAMP)))
+		error(1, 0, "serr: wrong type: %d.%d",
+		      cm->cmsg_level, cm->cmsg_type);
+
+	serr = (void *) CMSG_DATA(cm);
+
+	if (serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY)
+		error(1, 0, "serr: wrong origin: %u", serr->ee_origin);
+	if (serr->ee_errno != 0)
+		error(1, 0, "serr: wrong error code: %u", serr->ee_errno);
+
+	hi = serr->ee_data;
+	lo = serr->ee_info;
+	range = hi - lo + 1;
+
+	/* Detect notification gaps. These should not happen often, if at all.
+	 * Gaps can occur due to drops, reordering and retransmissions.
+	 */
+	if (cfg_verbose && lo != next_completion)
+		fprintf(stderr, "gap: %u..%u does not append to %u\n",
+			lo, hi, next_completion);
+	next_completion = hi + 1;
+
+	zerocopy = !(serr->ee_code & SO_EE_CODE_ZEROCOPY_COPIED);
+	if (cfg_expect_zerocopy != -1 &&
+	    cfg_expect_zerocopy != zerocopy) {
+		fprintf(stderr, "serr: ee_code: %u != expected %u\n",
+			zerocopy, cfg_expect_zerocopy);
+		exitcode = 1;
+		/* suppress repeated messages */
+		cfg_expect_zerocopy = zerocopy;
+	}
+
+	if (cfg_verbose >= 2)
+		fprintf(stderr, "completed: %u (h=%u l=%u)\n",
+			range, hi, lo);
+
+	completions += range;
+	return true;
+}
+
+/* Read all outstanding messages on the errqueue */
+static void do_recv_completions(int fd, int domain)
+{
+	while (do_recv_completion(fd, domain)) {}
+	sends_since_notify = 0;
+}
+
+/* Wait for all remaining completions on the errqueue */
+static void do_recv_remaining_completions(int fd, int domain)
+{
+	int64_t tstop = gettimeofday_ms() + cfg_waittime_ms;
+
+	while (completions < expected_completions &&
+	       gettimeofday_ms() < tstop) {
+		if (do_poll(fd, domain == PF_RDS ? POLLIN : POLLERR))
+			do_recv_completions(fd, domain);
+	}
+
+	if (completions < expected_completions)
+		fprintf(stderr, "missing notifications: %lu < %lu\n",
+			completions, expected_completions);
+}
+
+static void do_tx(int domain, int type, int protocol)
+{
+	struct iovec iov[3] = { {0} };
+	struct sockaddr_ll laddr;
+	struct msghdr msg = {0};
+	struct ethhdr eth;
+	union {
+		struct ipv6hdr ip6h;
+		struct iphdr iph;
+	} nh;
+	uint64_t tstop;
+	int fd;
+
+	fd = do_setup_tx(domain, type, protocol);
+
+	if (domain == PF_PACKET) {
+		uint16_t proto = cfg_family == PF_INET ? ETH_P_IP : ETH_P_IPV6;
+
+		/* sock_raw passes ll header as data */
+		if (type == SOCK_RAW) {
+			memset(eth.h_dest, 0x06, ETH_ALEN);
+			memset(eth.h_source, 0x02, ETH_ALEN);
+			eth.h_proto = htons(proto);
+			iov[0].iov_base = &eth;
+			iov[0].iov_len = sizeof(eth);
+			msg.msg_iovlen++;
+		}
+
+		/* both sock_raw and sock_dgram expect name */
+		memset(&laddr, 0, sizeof(laddr));
+		laddr.sll_family	= AF_PACKET;
+		laddr.sll_ifindex	= cfg_ifindex;
+		laddr.sll_protocol	= htons(proto);
+		laddr.sll_halen		= ETH_ALEN;
+
+		memset(laddr.sll_addr, 0x06, ETH_ALEN);
+
+		msg.msg_name		= &laddr;
+		msg.msg_namelen		= sizeof(laddr);
+	}
+
+	/* packet and raw sockets with hdrincl must pass network header */
+	if (domain == PF_PACKET || protocol == IPPROTO_RAW) {
+		if (cfg_family == PF_INET)
+			iov[1].iov_len = setup_iph(&nh.iph, cfg_payload_len);
+		else
+			iov[1].iov_len = setup_ip6h(&nh.ip6h, cfg_payload_len);
+
+		iov[1].iov_base = (void *) &nh;
+		msg.msg_iovlen++;
+	}
+
+	if (domain == PF_RDS) {
+		msg.msg_name = &cfg_dst_addr;
+		msg.msg_namelen =  (cfg_dst_addr.ss_family == AF_INET ?
+				    sizeof(struct sockaddr_in) :
+				    sizeof(struct sockaddr_in6));
+	}
+
+	iov[2].iov_base = payload;
+	iov[2].iov_len = cfg_payload_len;
+	msg.msg_iovlen++;
+	msg.msg_iov = &iov[3 - msg.msg_iovlen];
+
+	tstop = gettimeofday_ms() + cfg_runtime_ms;
+	do {
+		if (cfg_cork)
+			do_sendmsg_corked(fd, &msg);
+		else
+			do_sendmsg(fd, &msg, cfg_zerocopy, domain);
+
+		if (cfg_zerocopy && sends_since_notify >= cfg_notification_limit)
+			do_recv_completions(fd, domain);
+
+		while (!do_poll(fd, POLLOUT)) {
+			if (cfg_zerocopy)
+				do_recv_completions(fd, domain);
+		}
+
+	} while (gettimeofday_ms() < tstop);
+
+	if (cfg_zerocopy)
+		do_recv_remaining_completions(fd, domain);
+
+	if (close(fd))
+		error(1, errno, "close");
+
+	fprintf(stderr, "tx=%lu (%lu MB) txc=%lu zc=%c\n",
+		packets, bytes >> 20, completions,
+		cfg_zerocopy && cfg_expect_zerocopy == 1 ? 'y' : 'n');
+}
+
+static int do_setup_rx(int domain, int type, int protocol)
+{
+	int fd;
+
+	/* If tx over PF_PACKET, rx over PF_INET(6)/SOCK_RAW,
+	 * to recv the only copy of the packet, not a clone
+	 */
+	if (domain == PF_PACKET)
+		error(1, 0, "Use PF_INET/SOCK_RAW to read");
+
+	if (type == SOCK_RAW && protocol == IPPROTO_RAW)
+		error(1, 0, "IPPROTO_RAW: not supported on Rx");
+
+	fd = socket(domain, type, protocol);
+	if (fd == -1)
+		error(1, errno, "socket r");
+
+	do_setsockopt(fd, SOL_SOCKET, SO_RCVBUF, 1 << 21);
+	do_setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT, 1 << 16);
+	do_setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, 1);
+
+	if (bind(fd, (void *) &cfg_dst_addr, cfg_alen))
+		error(1, errno, "bind");
+
+	if (type == SOCK_STREAM) {
+		if (listen(fd, 1))
+			error(1, errno, "listen");
+		fd = do_accept(fd);
+	}
+
+	return fd;
+}
+
+/* Flush all outstanding bytes for the tcp receive queue */
+static void do_flush_tcp(int fd)
+{
+	int ret;
+
+	/* MSG_TRUNC flushes up to len bytes */
+	ret = recv(fd, NULL, 1 << 21, MSG_TRUNC | MSG_DONTWAIT);
+	if (ret == -1 && errno == EAGAIN)
+		return;
+	if (ret == -1)
+		error(1, errno, "flush");
+	if (!ret)
+		return;
+
+	packets++;
+	bytes += ret;
+}
+
+/* Flush all outstanding datagrams. Verify first few bytes of each. */
+static void do_flush_datagram(int fd, int type)
+{
+	int ret, off = 0;
+	char buf[64];
+
+	/* MSG_TRUNC will return full datagram length */
+	ret = recv(fd, buf, sizeof(buf), MSG_DONTWAIT | MSG_TRUNC);
+	if (ret == -1 && errno == EAGAIN)
+		return;
+
+	/* raw ipv4 return with header, raw ipv6 without */
+	if (cfg_family == PF_INET && type == SOCK_RAW) {
+		off += sizeof(struct iphdr);
+		ret -= sizeof(struct iphdr);
+	}
+
+	if (ret == -1)
+		error(1, errno, "recv");
+	if (ret != cfg_payload_len)
+		error(1, 0, "recv: ret=%u != %u", ret, cfg_payload_len);
+	if (ret > sizeof(buf) - off)
+		ret = sizeof(buf) - off;
+	if (memcmp(buf + off, payload, ret))
+		error(1, 0, "recv: data mismatch");
+
+	packets++;
+	bytes += cfg_payload_len;
+}
+
+static void do_rx(int domain, int type, int protocol)
+{
+	const int cfg_receiver_wait_ms = 400;
+	uint64_t tstop;
+	int fd;
+
+	fd = do_setup_rx(domain, type, protocol);
+
+	tstop = gettimeofday_ms() + cfg_runtime_ms + cfg_receiver_wait_ms;
+	do {
+		if (type == SOCK_STREAM)
+			do_flush_tcp(fd);
+		else
+			do_flush_datagram(fd, type);
+
+		do_poll(fd, POLLIN);
+
+	} while (gettimeofday_ms() < tstop);
+
+	if (close(fd))
+		error(1, errno, "close");
+
+	fprintf(stderr, "rx=%lu (%lu MB)\n", packets, bytes >> 20);
+}
+
+static void do_test(int domain, int type, int protocol)
+{
+	int i;
+
+	if (cfg_cork && (domain == PF_PACKET || type != SOCK_DGRAM))
+		error(1, 0, "can only cork udp sockets");
+
+	do_setcpu(cfg_cpu);
+
+	for (i = 0; i < IP_MAXPACKET; i++)
+		payload[i] = 'a' + (i % 26);
+
+	if (cfg_rx)
+		do_rx(domain, type, protocol);
+	else
+		do_tx(domain, type, protocol);
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s [options] <test>", filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	const int max_payload_len = sizeof(payload) -
+				    sizeof(struct ipv6hdr) -
+				    sizeof(struct tcphdr) -
+				    40 /* max tcp options */;
+	int c;
+	char *daddr = NULL, *saddr = NULL;
+	char *cfg_test;
+
+	cfg_payload_len = max_payload_len;
+
+	while ((c = getopt(argc, argv, "46c:C:D:i:l:mp:rs:S:t:vzZ:")) != -1) {
+		switch (c) {
+		case '4':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			break;
+		case '6':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET6;
+			cfg_alen = sizeof(struct sockaddr_in6);
+			break;
+		case 'c':
+			cfg_cork = strtol(optarg, NULL, 0);
+			break;
+		case 'C':
+			cfg_cpu = strtol(optarg, NULL, 0);
+			break;
+		case 'D':
+			daddr = optarg;
+			break;
+		case 'i':
+			cfg_ifindex = if_nametoindex(optarg);
+			if (cfg_ifindex == 0)
+				error(1, errno, "invalid iface: %s", optarg);
+			break;
+		case 'l':
+			cfg_notification_limit = strtoul(optarg, NULL, 0);
+			break;
+		case 'm':
+			cfg_cork_mixed = true;
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 'r':
+			cfg_rx = true;
+			break;
+		case 's':
+			cfg_payload_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'S':
+			saddr = optarg;
+			break;
+		case 't':
+			cfg_runtime_ms = 200 + strtoul(optarg, NULL, 10) * 1000;
+			break;
+		case 'v':
+			cfg_verbose++;
+			break;
+		case 'z':
+			cfg_zerocopy = true;
+			break;
+		case 'Z':
+			cfg_expect_zerocopy = !!atoi(optarg);
+			break;
+		}
+	}
+
+	cfg_test = argv[argc - 1];
+	if (strcmp(cfg_test, "rds") == 0) {
+		if (!daddr)
+			error(1, 0, "-D <server addr> required for PF_RDS\n");
+		if (!cfg_rx && !saddr)
+			error(1, 0, "-S <client addr> required for PF_RDS\n");
+	}
+	setup_sockaddr(cfg_family, daddr, &cfg_dst_addr);
+	setup_sockaddr(cfg_family, saddr, &cfg_src_addr);
+
+	if (cfg_payload_len > max_payload_len)
+		error(1, 0, "-s: payload exceeds max (%d)", max_payload_len);
+	if (cfg_cork_mixed && (!cfg_zerocopy || !cfg_cork))
+		error(1, 0, "-m: cork_mixed requires corking and zerocopy");
+
+	if (optind != argc - 1)
+		usage(argv[0]);
+}
+
+int main(int argc, char **argv)
+{
+	const char *cfg_test;
+
+	parse_opts(argc, argv);
+
+	cfg_test = argv[argc - 1];
+
+	if (!strcmp(cfg_test, "packet"))
+		do_test(PF_PACKET, SOCK_RAW, 0);
+	else if (!strcmp(cfg_test, "packet_dgram"))
+		do_test(PF_PACKET, SOCK_DGRAM, 0);
+	else if (!strcmp(cfg_test, "raw"))
+		do_test(cfg_family, SOCK_RAW, IPPROTO_EGP);
+	else if (!strcmp(cfg_test, "raw_hdrincl"))
+		do_test(cfg_family, SOCK_RAW, IPPROTO_RAW);
+	else if (!strcmp(cfg_test, "tcp"))
+		do_test(cfg_family, SOCK_STREAM, 0);
+	else if (!strcmp(cfg_test, "udp"))
+		do_test(cfg_family, SOCK_DGRAM, 0);
+	else if (!strcmp(cfg_test, "rds"))
+		do_test(PF_RDS, SOCK_SEQPACKET, 0);
+	else
+		error(1, 0, "unknown cfg_test %s", cfg_test);
+
+	return exitcode;
+}
diff --git a/tools/testing/selftests/net/msg_zerocopy.sh b/tools/testing/selftests/net/msg_zerocopy.sh
new file mode 100755
index 000000000000..28178a38a4e7
--- /dev/null
+++ b/tools/testing/selftests/net/msg_zerocopy.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+#
+# Send data between two processes across namespaces
+# Run twice: once without and once with zerocopy
+
+set -e
+
+readonly DEV="veth0"
+readonly DUMMY_DEV="dummy0"
+readonly DEV_MTU=65535
+readonly BIN="./msg_zerocopy"
+
+readonly RAND="$(mktemp -u XXXXXX)"
+readonly NSPREFIX="ns-${RAND}"
+readonly NS1="${NSPREFIX}1"
+readonly NS2="${NSPREFIX}2"
+
+readonly LPREFIX4='192.168.1'
+readonly RPREFIX4='192.168.2'
+readonly LPREFIX6='fd'
+readonly RPREFIX6='fc'
+
+
+readonly path_sysctl_mem="net.core.optmem_max"
+
+# No arguments: automated test
+if [[ "$#" -eq "0" ]]; then
+	ret=0
+
+	$0 4 tcp -t 1 || ret=1
+	$0 6 tcp -t 1 || ret=1
+	$0 4 udp -t 1 || ret=1
+	$0 6 udp -t 1 || ret=1
+
+	[[ "$ret" == "0" ]] && echo "OK. All tests passed"
+	exit $ret
+fi
+
+# Argument parsing
+if [[ "$#" -lt "2" ]]; then
+	echo "Usage: $0 [4|6] [tcp|udp|raw|raw_hdrincl|packet|packet_dgram] <args>"
+	exit 1
+fi
+
+readonly IP="$1"
+shift
+readonly TXMODE="$1"
+shift
+readonly EXTRA_ARGS="$@"
+
+# Argument parsing: configure addresses
+if [[ "${IP}" == "4" ]]; then
+	readonly SADDR="${LPREFIX4}.1"
+	readonly DADDR="${LPREFIX4}.2"
+	readonly DUMMY_ADDR="${RPREFIX4}.1"
+	readonly DADDR_TXONLY="${RPREFIX4}.2"
+	readonly MASK="24"
+elif [[ "${IP}" == "6" ]]; then
+	readonly SADDR="${LPREFIX6}::1"
+	readonly DADDR="${LPREFIX6}::2"
+	readonly DUMMY_ADDR="${RPREFIX6}::1"
+	readonly DADDR_TXONLY="${RPREFIX6}::2"
+	readonly MASK="64"
+	readonly NODAD="nodad"
+else
+	echo "Invalid IP version ${IP}"
+	exit 1
+fi
+
+# Argument parsing: select receive mode
+#
+# This differs from send mode for
+# - packet:	use raw recv, because packet receives skb clones
+# - raw_hdrinc: use raw recv, because hdrincl is a tx-only option
+case "${TXMODE}" in
+'packet' | 'packet_dgram' | 'raw_hdrincl')
+	RXMODE='raw'
+	;;
+*)
+	RXMODE="${TXMODE}"
+	;;
+esac
+
+# Start of state changes: install cleanup handler
+
+cleanup() {
+	ip netns del "${NS2}"
+	ip netns del "${NS1}"
+}
+
+trap cleanup EXIT
+
+# Create virtual ethernet pair between network namespaces
+ip netns add "${NS1}"
+ip netns add "${NS2}"
+
+# Configure system settings
+ip netns exec "${NS1}" sysctl -w -q "${path_sysctl_mem}=1000000"
+ip netns exec "${NS2}" sysctl -w -q "${path_sysctl_mem}=1000000"
+
+ip link add "${DEV}" mtu "${DEV_MTU}" netns "${NS1}" type veth \
+  peer name "${DEV}" mtu "${DEV_MTU}" netns "${NS2}"
+
+ip link add "${DUMMY_DEV}" mtu "${DEV_MTU}" netns "${NS2}" type dummy
+
+# Bring the devices up
+ip -netns "${NS1}" link set "${DEV}" up
+ip -netns "${NS2}" link set "${DEV}" up
+ip -netns "${NS2}" link set "${DUMMY_DEV}" up
+
+# Set fixed MAC addresses on the devices
+ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
+ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
+
+# Add fixed IP addresses to the devices
+ip -netns "${NS1}" addr add "${SADDR}/${MASK}" dev "${DEV}" ${NODAD}
+ip -netns "${NS2}" addr add "${DADDR}/${MASK}" dev "${DEV}" ${NODAD}
+ip -netns "${NS2}" addr add "${DUMMY_ADDR}/${MASK}" dev "${DUMMY_DEV}" ${NODAD}
+
+ip -netns "${NS1}" route add default via "${DADDR}" dev "${DEV}"
+ip -netns "${NS2}" route add default via "${DADDR_TXONLY}" dev "${DUMMY_DEV}"
+
+ip netns exec "${NS2}" sysctl -wq net.ipv4.ip_forward=1
+ip netns exec "${NS2}" sysctl -wq net.ipv6.conf.all.forwarding=1
+
+# Optionally disable sg or csum offload to test edge cases
+# ip netns exec "${NS1}" ethtool -K "${DEV}" sg off
+
+ret=0
+
+do_test() {
+	local readonly ARGS="$1"
+
+	# tx-rx test
+	# packets queued to a local socket are copied,
+	# sender notification has SO_EE_CODE_ZEROCOPY_COPIED.
+
+	echo -e "\nipv${IP} ${TXMODE} ${ARGS} tx-rx\n"
+	ip netns exec "${NS2}" "${BIN}" "-${IP}" -i "${DEV}" -t 2 -C 2 \
+		-S "${SADDR}" -D "${DADDR}" ${ARGS} -r "${RXMODE}" &
+	sleep 0.2
+	ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 \
+		-S "${SADDR}" -D "${DADDR}" ${ARGS} "${TXMODE}" -Z 0 || ret=1
+	wait
+
+	# next test is unconnected tx to dummy0, cannot exercise with tcp
+	[[ "${TXMODE}" == "tcp" ]] && return
+
+	# tx-only test: send out dummy0
+	# packets leaving the host are not copied,
+	# sender notification does not have SO_EE_CODE_ZEROCOPY_COPIED.
+
+	echo -e "\nipv${IP} ${TXMODE} ${ARGS} tx-only\n"
+	ip netns exec "${NS1}" "${BIN}" "-${IP}" -i "${DEV}" -t 1 -C 3 \
+		-S "${SADDR}" -D "${DADDR_TXONLY}" ${ARGS} "${TXMODE}" -Z 1 || ret=1
+}
+
+do_test "${EXTRA_ARGS}"
+do_test "-z ${EXTRA_ARGS}"
+
+[[ "$ret" == "0" ]] && echo "OK"
diff --git a/tools/testing/selftests/net/nat6to4.bpf.c b/tools/testing/selftests/net/nat6to4.bpf.c
new file mode 100644
index 000000000000..ac54c36b25fc
--- /dev/null
+++ b/tools/testing/selftests/net/nat6to4.bpf.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This code is taken from the Android Open Source Project and the author
+ * (Maciej Żenczykowski) has gave permission to relicense it under the
+ * GPLv2. Therefore this program is free software;
+ * You can redistribute it and/or modify it under the terms of the GNU
+ * General Public License version 2 as published by the Free Software
+ * Foundation
+
+ * The original headers, including the original license headers, are
+ * included below for completeness.
+ *
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <linux/bpf.h>
+#include <linux/if.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/in.h>
+#include <linux/in6.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/pkt_cls.h>
+#include <linux/swab.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+
+#include <linux/udp.h>
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+
+#define IP_DF 0x4000  // Flag: "Don't Fragment"
+
+SEC("schedcls/ingress6/nat_6")
+int sched_cls_ingress6_nat_6_prog(struct __sk_buff *skb)
+{
+	const int l2_header_size =  sizeof(struct ethhdr);
+	void *data = (void *)(long)skb->data;
+	const void *data_end = (void *)(long)skb->data_end;
+	const struct ethhdr * const eth = data;  // used iff is_ethernet
+	const struct ipv6hdr * const ip6 =  (void *)(eth + 1);
+
+	// Require ethernet dst mac address to be our unicast address.
+	if  (skb->pkt_type != PACKET_HOST)
+		return TC_ACT_OK;
+
+	// Must be meta-ethernet IPv6 frame
+	if (skb->protocol != bpf_htons(ETH_P_IPV6))
+		return TC_ACT_OK;
+
+	// Must have (ethernet and) ipv6 header
+	if (data + l2_header_size + sizeof(*ip6) > data_end)
+		return TC_ACT_OK;
+
+	// Ethertype - if present - must be IPv6
+	if (eth->h_proto != bpf_htons(ETH_P_IPV6))
+		return TC_ACT_OK;
+
+	// IP version must be 6
+	if (ip6->version != 6)
+		return TC_ACT_OK;
+	// Maximum IPv6 payload length that can be translated to IPv4
+	if (bpf_ntohs(ip6->payload_len) > 0xFFFF - sizeof(struct iphdr))
+		return TC_ACT_OK;
+	switch (ip6->nexthdr) {
+	case IPPROTO_TCP:  // For TCP & UDP the checksum neutrality of the chosen IPv6
+	case IPPROTO_UDP:  // address means there is no need to update their checksums.
+	case IPPROTO_GRE:  // We do not need to bother looking at GRE/ESP headers,
+	case IPPROTO_ESP:  // since there is never a checksum to update.
+		break;
+	default:  // do not know how to handle anything else
+		return TC_ACT_OK;
+	}
+
+	struct ethhdr eth2;  // used iff is_ethernet
+
+	eth2 = *eth;                     // Copy over the ethernet header (src/dst mac)
+	eth2.h_proto = bpf_htons(ETH_P_IP);  // But replace the ethertype
+
+	struct iphdr ip = {
+		.version = 4,                                                      // u4
+		.ihl = sizeof(struct iphdr) / sizeof(__u32),                       // u4
+		.tos = (ip6->priority << 4) + (ip6->flow_lbl[0] >> 4),             // u8
+		.tot_len = bpf_htons(bpf_ntohs(ip6->payload_len) + sizeof(struct iphdr)),  // u16
+		.id = 0,                                                           // u16
+		.frag_off = bpf_htons(IP_DF),                                          // u16
+		.ttl = ip6->hop_limit,                                             // u8
+		.protocol = ip6->nexthdr,                                          // u8
+		.check = 0,                                                        // u16
+		.saddr = 0x0201a8c0,                            // u32
+		.daddr = 0x0101a8c0,                                         // u32
+	};
+
+	// Calculate the IPv4 one's complement checksum of the IPv4 header.
+	__wsum sum4 = 0;
+
+	for (int i = 0; i < sizeof(ip) / sizeof(__u16); ++i)
+		sum4 += ((__u16 *)&ip)[i];
+
+	// Note that sum4 is guaranteed to be non-zero by virtue of ip.version == 4
+	sum4 = (sum4 & 0xFFFF) + (sum4 >> 16);  // collapse u32 into range 1 .. 0x1FFFE
+	sum4 = (sum4 & 0xFFFF) + (sum4 >> 16);  // collapse any potential carry into u16
+	ip.check = (__u16)~sum4;                // sum4 cannot be zero, so this is never 0xFFFF
+
+	// Calculate the *negative* IPv6 16-bit one's complement checksum of the IPv6 header.
+	__wsum sum6 = 0;
+	// We'll end up with a non-zero sum due to ip6->version == 6 (which has '0' bits)
+	for (int i = 0; i < sizeof(*ip6) / sizeof(__u16); ++i)
+		sum6 += ~((__u16 *)ip6)[i];  // note the bitwise negation
+
+	// Note that there is no L4 checksum update: we are relying on the checksum neutrality
+	// of the ipv6 address chosen by netd's ClatdController.
+
+	// Packet mutations begin - point of no return, but if this first modification fails
+	// the packet is probably still pristine, so let clatd handle it.
+	if (bpf_skb_change_proto(skb, bpf_htons(ETH_P_IP), 0))
+		return TC_ACT_OK;
+	bpf_csum_update(skb, sum6);
+
+	data = (void *)(long)skb->data;
+	data_end = (void *)(long)skb->data_end;
+	if (data + l2_header_size + sizeof(struct iphdr) > data_end)
+		return TC_ACT_SHOT;
+
+	struct ethhdr *new_eth = data;
+
+	// Copy over the updated ethernet header
+	*new_eth = eth2;
+
+	// Copy over the new ipv4 header.
+	*(struct iphdr *)(new_eth + 1) = ip;
+	return bpf_redirect(skb->ifindex, BPF_F_INGRESS);
+}
+
+SEC("schedcls/egress4/snat4")
+int sched_cls_egress4_snat4_prog(struct __sk_buff *skb)
+{
+	const int l2_header_size =  sizeof(struct ethhdr);
+	void *data = (void *)(long)skb->data;
+	const void *data_end = (void *)(long)skb->data_end;
+	const struct ethhdr *const eth = data;  // used iff is_ethernet
+	const struct iphdr *const ip4 = (void *)(eth + 1);
+
+	// Must be meta-ethernet IPv4 frame
+	if (skb->protocol != bpf_htons(ETH_P_IP))
+		return TC_ACT_OK;
+
+	// Must have ipv4 header
+	if (data + l2_header_size + sizeof(struct ipv6hdr) > data_end)
+		return TC_ACT_OK;
+
+	// Ethertype - if present - must be IPv4
+	if (eth->h_proto != bpf_htons(ETH_P_IP))
+		return TC_ACT_OK;
+
+	// IP version must be 4
+	if (ip4->version != 4)
+		return TC_ACT_OK;
+
+	// We cannot handle IP options, just standard 20 byte == 5 dword minimal IPv4 header
+	if (ip4->ihl != 5)
+		return TC_ACT_OK;
+
+	// Maximum IPv6 payload length that can be translated to IPv4
+	if (bpf_htons(ip4->tot_len) > 0xFFFF - sizeof(struct ipv6hdr))
+		return TC_ACT_OK;
+
+	// Calculate the IPv4 one's complement checksum of the IPv4 header.
+	__wsum sum4 = 0;
+
+	for (int i = 0; i < sizeof(*ip4) / sizeof(__u16); ++i)
+		sum4 += ((__u16 *)ip4)[i];
+
+	// Note that sum4 is guaranteed to be non-zero by virtue of ip4->version == 4
+	sum4 = (sum4 & 0xFFFF) + (sum4 >> 16);  // collapse u32 into range 1 .. 0x1FFFE
+	sum4 = (sum4 & 0xFFFF) + (sum4 >> 16);  // collapse any potential carry into u16
+	// for a correct checksum we should get *a* zero, but sum4 must be positive, ie 0xFFFF
+	if (sum4 != 0xFFFF)
+		return TC_ACT_OK;
+
+	// Minimum IPv4 total length is the size of the header
+	if (bpf_ntohs(ip4->tot_len) < sizeof(*ip4))
+		return TC_ACT_OK;
+
+	// We are incapable of dealing with IPv4 fragments
+	if (ip4->frag_off & ~bpf_htons(IP_DF))
+		return TC_ACT_OK;
+
+	switch (ip4->protocol) {
+	case IPPROTO_TCP:  // For TCP & UDP the checksum neutrality of the chosen IPv6
+	case IPPROTO_GRE:  // address means there is no need to update their checksums.
+	case IPPROTO_ESP:  // We do not need to bother looking at GRE/ESP headers,
+		break;         // since there is never a checksum to update.
+
+	case IPPROTO_UDP:  // See above comment, but must also have UDP header...
+		if (data + sizeof(*ip4) + sizeof(struct udphdr) > data_end)
+			return TC_ACT_OK;
+		const struct udphdr *uh = (const struct udphdr *)(ip4 + 1);
+		// If IPv4/UDP checksum is 0 then fallback to clatd so it can calculate the
+		// checksum.  Otherwise the network or more likely the NAT64 gateway might
+		// drop the packet because in most cases IPv6/UDP packets with a zero checksum
+		// are invalid. See RFC 6935.  TODO: calculate checksum via bpf_csum_diff()
+		if (!uh->check)
+			return TC_ACT_OK;
+		break;
+
+	default:  // do not know how to handle anything else
+		return TC_ACT_OK;
+	}
+	struct ethhdr eth2;  // used iff is_ethernet
+
+	eth2 = *eth;                     // Copy over the ethernet header (src/dst mac)
+	eth2.h_proto = bpf_htons(ETH_P_IPV6);  // But replace the ethertype
+
+	struct ipv6hdr ip6 = {
+		.version = 6,                                    // __u8:4
+		.priority = ip4->tos >> 4,                       // __u8:4
+		.flow_lbl = {(ip4->tos & 0xF) << 4, 0, 0},       // __u8[3]
+		.payload_len = bpf_htons(bpf_ntohs(ip4->tot_len) - 20),  // __be16
+		.nexthdr = ip4->protocol,                        // __u8
+		.hop_limit = ip4->ttl,                           // __u8
+	};
+	ip6.saddr.in6_u.u6_addr32[0] = bpf_htonl(0x20010db8);
+	ip6.saddr.in6_u.u6_addr32[1] = 0;
+	ip6.saddr.in6_u.u6_addr32[2] = 0;
+	ip6.saddr.in6_u.u6_addr32[3] = bpf_htonl(1);
+	ip6.daddr.in6_u.u6_addr32[0] = bpf_htonl(0x20010db8);
+	ip6.daddr.in6_u.u6_addr32[1] = 0;
+	ip6.daddr.in6_u.u6_addr32[2] = 0;
+	ip6.daddr.in6_u.u6_addr32[3] = bpf_htonl(2);
+
+	// Calculate the IPv6 16-bit one's complement checksum of the IPv6 header.
+	__wsum sum6 = 0;
+	// We'll end up with a non-zero sum due to ip6.version == 6
+	for (int i = 0; i < sizeof(ip6) / sizeof(__u16); ++i)
+		sum6 += ((__u16 *)&ip6)[i];
+
+	// Packet mutations begin - point of no return, but if this first modification fails
+	// the packet is probably still pristine, so let clatd handle it.
+	if (bpf_skb_change_proto(skb, bpf_htons(ETH_P_IPV6), 0))
+		return TC_ACT_OK;
+
+	// This takes care of updating the skb->csum field for a CHECKSUM_COMPLETE packet.
+	// In such a case, skb->csum is a 16-bit one's complement sum of the entire payload,
+	// thus we need to subtract out the ipv4 header's sum, and add in the ipv6 header's sum.
+	// However, we've already verified the ipv4 checksum is correct and thus 0.
+	// Thus we only need to add the ipv6 header's sum.
+	//
+	// bpf_csum_update() always succeeds if the skb is CHECKSUM_COMPLETE and returns an error
+	// (-ENOTSUPP) if it isn't.  So we just ignore the return code (see above for more details).
+	bpf_csum_update(skb, sum6);
+
+	// bpf_skb_change_proto() invalidates all pointers - reload them.
+	data = (void *)(long)skb->data;
+	data_end = (void *)(long)skb->data_end;
+
+	// I cannot think of any valid way for this error condition to trigger, however I do
+	// believe the explicit check is required to keep the in kernel ebpf verifier happy.
+	if (data + l2_header_size + sizeof(ip6) > data_end)
+		return TC_ACT_SHOT;
+
+	struct ethhdr *new_eth = data;
+
+	// Copy over the updated ethernet header
+	*new_eth = eth2;
+	// Copy over the new ipv4 header.
+	*(struct ipv6hdr *)(new_eth + 1) = ip6;
+	return TC_ACT_OK;
+}
+
+char _license[] SEC("license") = ("GPL");
diff --git a/tools/testing/selftests/net/nat6to4.sh b/tools/testing/selftests/net/nat6to4.sh
new file mode 100755
index 000000000000..0ee859b622a4
--- /dev/null
+++ b/tools/testing/selftests/net/nat6to4.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+NS="ns-peer-$(mktemp -u XXXXXX)"
+
+ip netns add "${NS}"
+ip -netns "${NS}" link set lo up
+ip -netns "${NS}" route add default via 127.0.0.2 dev lo
+
+tc -n "${NS}" qdisc add dev lo ingress
+tc -n "${NS}" filter add dev lo ingress prio 4 protocol ip \
+   bpf object-file nat6to4.bpf.o section schedcls/egress4/snat4 direct-action
+
+ip netns exec "${NS}" \
+   bash -c 'echo 012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789abc | socat - UDP4-DATAGRAM:224.1.0.1:6666,ip-multicast-loop=1'
diff --git a/tools/testing/selftests/net/ndisc_unsolicited_na_test.sh b/tools/testing/selftests/net/ndisc_unsolicited_na_test.sh
new file mode 100755
index 000000000000..5db69dad0cfc
--- /dev/null
+++ b/tools/testing/selftests/net/ndisc_unsolicited_na_test.sh
@@ -0,0 +1,249 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for the accept_untracked_na feature to
+# enable RFC9131 behaviour. The following is the test-matrix.
+# drop   accept  fwding                   behaviour
+# ----   ------  ------  ----------------------------------------------
+#    1        X       X  Don't update NC
+#    0        0       X  Don't update NC
+#    0        1       0  Don't update NC
+#    0        1       1  Add a STALE NC entry
+
+source lib.sh
+ret=0
+
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+HOST_INTF="veth-host"
+ROUTER_INTF="veth-router"
+
+ROUTER_ADDR="2000:20::1"
+HOST_ADDR="2000:20::2"
+SUBNET_WIDTH=64
+ROUTER_ADDR_WITH_MASK="${ROUTER_ADDR}/${SUBNET_WIDTH}"
+HOST_ADDR_WITH_MASK="${HOST_ADDR}/${SUBNET_WIDTH}"
+
+tcpdump_stdout=
+tcpdump_stderr=
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+}
+
+setup()
+{
+	set -e
+
+	local drop_unsolicited_na=$1
+	local accept_untracked_na=$2
+	local forwarding=$3
+
+	# Setup two namespaces and a veth tunnel across them.
+	# On end of the tunnel is a router and the other end is a host.
+	setup_ns HOST_NS ROUTER_NS
+	IP_HOST="ip -6 -netns ${HOST_NS}"
+	IP_HOST_EXEC="ip netns exec ${HOST_NS}"
+	IP_ROUTER="ip -6 -netns ${ROUTER_NS}"
+	IP_ROUTER_EXEC="ip netns exec ${ROUTER_NS}"
+
+	${IP_ROUTER} link add ${ROUTER_INTF} type veth \
+                peer name ${HOST_INTF} netns ${HOST_NS}
+
+	# Enable IPv6 on both router and host, and configure static addresses.
+	# The router here is the DUT
+	# Setup router configuration as specified by the arguments.
+	# forwarding=0 case is to check that a non-router
+	# doesn't add neighbour entries.
+        ROUTER_CONF=net.ipv6.conf.${ROUTER_INTF}
+	${IP_ROUTER_EXEC} sysctl -qw \
+                ${ROUTER_CONF}.forwarding=${forwarding}
+	${IP_ROUTER_EXEC} sysctl -qw \
+                ${ROUTER_CONF}.drop_unsolicited_na=${drop_unsolicited_na}
+	${IP_ROUTER_EXEC} sysctl -qw \
+                ${ROUTER_CONF}.accept_untracked_na=${accept_untracked_na}
+	${IP_ROUTER_EXEC} sysctl -qw ${ROUTER_CONF}.disable_ipv6=0
+	${IP_ROUTER} addr add ${ROUTER_ADDR_WITH_MASK} dev ${ROUTER_INTF}
+
+	# Turn on ndisc_notify on host interface so that
+	# the host sends unsolicited NAs.
+	HOST_CONF=net.ipv6.conf.${HOST_INTF}
+	${IP_HOST_EXEC} sysctl -qw ${HOST_CONF}.ndisc_notify=1
+	${IP_HOST_EXEC} sysctl -qw ${HOST_CONF}.disable_ipv6=0
+	${IP_HOST} addr add ${HOST_ADDR_WITH_MASK} dev ${HOST_INTF}
+
+	set +e
+}
+
+start_tcpdump() {
+	set -e
+	tcpdump_stdout=`mktemp`
+	tcpdump_stderr=`mktemp`
+	${IP_ROUTER_EXEC} timeout 15s \
+                tcpdump --immediate-mode -tpni ${ROUTER_INTF} -c 1 \
+                "icmp6 && icmp6[0] == 136 && src ${HOST_ADDR}" \
+                > ${tcpdump_stdout} 2> /dev/null
+	set +e
+}
+
+cleanup_tcpdump()
+{
+	set -e
+	[[ ! -z  ${tcpdump_stdout} ]] && rm -f ${tcpdump_stdout}
+	[[ ! -z  ${tcpdump_stderr} ]] && rm -f ${tcpdump_stderr}
+	tcpdump_stdout=
+	tcpdump_stderr=
+	set +e
+}
+
+cleanup()
+{
+	cleanup_tcpdump
+	ip netns del ${HOST_NS}
+	ip netns del ${ROUTER_NS}
+}
+
+link_up() {
+	set -e
+	${IP_ROUTER} link set dev ${ROUTER_INTF} up
+	${IP_HOST} link set dev ${HOST_INTF} up
+	set +e
+}
+
+verify_ndisc() {
+	local drop_unsolicited_na=$1
+	local accept_untracked_na=$2
+	local forwarding=$3
+
+	neigh_show_output=$(${IP_ROUTER} neigh show \
+                to ${HOST_ADDR} dev ${ROUTER_INTF} nud stale)
+	if [ ${drop_unsolicited_na} -eq 0 ] && \
+			[ ${accept_untracked_na} -eq 1 ] && \
+			[ ${forwarding} -eq 1 ]; then
+		# Neighbour entry expected to be present for 011 case
+		[[ ${neigh_show_output} ]]
+	else
+		# Neighbour entry expected to be absent for all other cases
+		[[ -z ${neigh_show_output} ]]
+	fi
+}
+
+test_unsolicited_na_common()
+{
+	# Setup the test bed, but keep links down
+	setup $1 $2 $3
+
+	# Bring the link up, wait for the NA,
+	# and add a delay to ensure neighbour processing is done.
+	link_up
+	start_tcpdump
+
+	# Verify the neighbour table
+	verify_ndisc $1 $2 $3
+
+}
+
+test_unsolicited_na_combination() {
+	test_unsolicited_na_common $1 $2 $3
+	test_msg=("test_unsolicited_na: "
+		"drop_unsolicited_na=$1 "
+		"accept_untracked_na=$2 "
+		"forwarding=$3")
+	log_test $? 0 "${test_msg[*]}"
+	cleanup
+}
+
+test_unsolicited_na_combinations() {
+	# Args: drop_unsolicited_na accept_untracked_na forwarding
+
+	# Expect entry
+	test_unsolicited_na_combination 0 1 1
+
+	# Expect no entry
+	test_unsolicited_na_combination 0 0 0
+	test_unsolicited_na_combination 0 0 1
+	test_unsolicited_na_combination 0 1 0
+	test_unsolicited_na_combination 1 0 0
+	test_unsolicited_na_combination 1 0 1
+	test_unsolicited_na_combination 1 1 0
+	test_unsolicited_na_combination 1 1 1
+}
+
+###############################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+EOF
+}
+
+###############################################################################
+# main
+
+while getopts :pPh o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tcpdump)" ]; then
+	echo "SKIP: Could not run test without tcpdump tool"
+	exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+test_unsolicited_na_combinations
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/netdev-l2addr.sh b/tools/testing/selftests/net/netdev-l2addr.sh
new file mode 100755
index 000000000000..18509da293e5
--- /dev/null
+++ b/tools/testing/selftests/net/netdev-l2addr.sh
@@ -0,0 +1,59 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+set -o pipefail
+
+NSIM_ADDR=2025
+TEST_ADDR="d0:be:d0:be:d0:00"
+
+RET_CODE=0
+
+cleanup() {
+    cleanup_netdevsim "$NSIM_ADDR"
+    cleanup_ns "$NS"
+}
+
+trap cleanup EXIT
+
+fail() {
+    echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2
+    RET_CODE=1
+}
+
+get_addr()
+{
+    local type="$1"
+    local dev="$2"
+    local ns="$3"
+
+    ip -j -n "$ns" link show dev "$dev" | jq -er ".[0].$type"
+}
+
+setup_ns NS
+
+nsim=$(create_netdevsim $NSIM_ADDR "$NS")
+
+get_addr address "$nsim" "$NS" >/dev/null || fail "Couldn't get ether addr"
+get_addr broadcast "$nsim" "$NS" >/dev/null || fail "Couldn't get brd addr"
+get_addr permaddr "$nsim" "$NS" >/dev/null && fail "Found perm_addr without setting it"
+
+ip -n "$NS" link set dev "$nsim" address "$TEST_ADDR"
+ip -n "$NS" link set dev "$nsim" brd "$TEST_ADDR"
+
+[[ "$(get_addr address "$nsim" "$NS")" == "$TEST_ADDR" ]] || fail "Couldn't set ether addr"
+[[ "$(get_addr broadcast "$nsim" "$NS")" == "$TEST_ADDR" ]] || fail "Couldn't set brd addr"
+
+if create_netdevsim_port "$NSIM_ADDR" "$NS" 2 "FF:FF:FF:FF:FF:FF" 2>/dev/null; then
+    fail "Created netdevsim with broadcast permaddr"
+fi
+
+nsim_port=$(create_netdevsim_port "$NSIM_ADDR" "$NS" 2 "$TEST_ADDR")
+
+get_addr address "$nsim_port" "$NS" >/dev/null || fail "Couldn't get ether addr"
+get_addr broadcast "$nsim_port" "$NS" >/dev/null || fail "Couldn't get brd addr"
+[[ "$(get_addr permaddr "$nsim_port" "$NS")" == "$TEST_ADDR" ]] || fail "Couldn't get permaddr"
+
+cleanup_netdevsim "$NSIM_ADDR" "$NS"
+
+exit $RET_CODE
diff --git a/tools/testing/selftests/net/netdevice.sh b/tools/testing/selftests/net/netdevice.sh
new file mode 100755
index 000000000000..438f7b2acc5f
--- /dev/null
+++ b/tools/testing/selftests/net/netdevice.sh
@@ -0,0 +1,257 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking network interface
+# For the moment it tests only ethernet interface (but wifi could be easily added)
+#
+# We assume that all network driver are loaded
+# if not they probably have failed earlier in the boot process and their logged error will be catched by another test
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+# this function will try to up the interface
+# if already up, nothing done
+# arg1: network interface name
+kci_net_start()
+{
+	netdev=$1
+
+	ip link show "$netdev" |grep -q UP
+	if [ $? -eq 0 ];then
+		echo "SKIP: $netdev: interface already up"
+		return $ksft_skip
+	fi
+
+	ip link set "$netdev" up
+	if [ $? -ne 0 ];then
+		echo "FAIL: $netdev: Fail to up interface"
+		return 1
+	else
+		echo "PASS: $netdev: set interface up"
+		NETDEV_STARTED=1
+	fi
+	return 0
+}
+
+# this function will try to setup an IP and MAC address on a network interface
+# Doing nothing if the interface was already up
+# arg1: network interface name
+kci_net_setup()
+{
+	netdev=$1
+
+	# do nothing if the interface was already up
+	if [ $NETDEV_STARTED -eq 0 ];then
+		return 0
+	fi
+
+	MACADDR='02:03:04:05:06:07'
+	ip link set dev $netdev address "$MACADDR"
+	if [ $? -ne 0 ];then
+		echo "FAIL: $netdev: Cannot set MAC address"
+	else
+		ip link show $netdev |grep -q "$MACADDR"
+		if [ $? -eq 0 ];then
+			echo "PASS: $netdev: set MAC address"
+		else
+			echo "FAIL: $netdev: Cannot set MAC address"
+		fi
+	fi
+
+	#check that the interface did not already have an IP
+	ip address show "$netdev" |grep '^[[:space:]]*inet'
+	if [ $? -eq 0 ];then
+		echo "SKIP: $netdev: already have an IP"
+		return $ksft_skip
+	fi
+
+	if [ "$veth_created" ]; then
+		echo "XFAIL: $netdev: set IP address unsupported for veth*"
+	else
+		# TODO what ipaddr to set ? DHCP ?
+		echo "SKIP: $netdev: set IP address"
+	fi
+	return $ksft_skip
+}
+
+# test an ethtool command
+# arg1: return code for not supported (see ethtool code source)
+# arg2: summary of the command
+# arg3: command to execute
+kci_netdev_ethtool_test()
+{
+	if [ $# -le 2 ];then
+		echo "SKIP: $netdev: ethtool: invalid number of arguments"
+		return 1
+	fi
+	$3 >/dev/null
+	ret=$?
+	if [ $ret -ne 0 ];then
+		if [ $ret -eq "$1" ];then
+			echo "XFAIL: $netdev: ethtool $2 not supported"
+			return $ksft_skip
+		else
+			echo "FAIL: $netdev: ethtool $2"
+			return 1
+		fi
+	else
+		echo "PASS: $netdev: ethtool $2"
+	fi
+	return 0
+}
+
+# test ethtool commands
+# arg1: network interface name
+kci_netdev_ethtool()
+{
+	netdev=$1
+
+	#check presence of ethtool
+	ethtool --version 2>/dev/null >/dev/null
+	if [ $? -ne 0 ];then
+		echo "SKIP: ethtool not present"
+		return $ksft_skip
+	fi
+
+	TMP_ETHTOOL_FEATURES="$(mktemp)"
+	if [ ! -e "$TMP_ETHTOOL_FEATURES" ];then
+		echo "SKIP: Cannot create a tmp file"
+		return 1
+	fi
+
+	ethtool -k "$netdev" > "$TMP_ETHTOOL_FEATURES"
+	if [ $? -ne 0 ];then
+		echo "FAIL: $netdev: ethtool list features"
+		rm "$TMP_ETHTOOL_FEATURES"
+		return 1
+	fi
+	echo "PASS: $netdev: ethtool list features"
+
+	while read -r FEATURE VALUE FIXED; do
+		[ "$FEATURE" != "Features" ] || continue # Skip "Features"
+		[ "$FIXED" != "[fixed]" ] || continue # Skip fixed features
+		feature="${FEATURE%:*}"
+
+		ethtool --offload "$netdev" "$feature" off
+		if [ $? -eq 0 ]; then
+			echo "PASS: $netdev: Turned off feature: $feature"
+		else
+			echo "FAIL: $netdev: Failed to turn off feature:" \
+				"$feature"
+		fi
+
+		ethtool --offload "$netdev" "$feature" on
+		if [ $? -eq 0 ]; then
+			echo "PASS: $netdev: Turned on feature: $feature"
+		else
+			echo "FAIL: $netdev: Failed to turn on feature:" \
+				"$feature"
+		fi
+
+		#restore the feature to its initial state
+		ethtool --offload "$netdev" "$feature" "$VALUE"
+		if [ $? -eq 0 ]; then
+			echo "PASS: $netdev: Restore feature $feature" \
+				"to initial state $VALUE"
+		else
+			echo "FAIL: $netdev: Failed to restore feature" \
+				"$feature to initial state $VALUE"
+		fi
+
+	done < "$TMP_ETHTOOL_FEATURES"
+
+	rm "$TMP_ETHTOOL_FEATURES"
+
+	kci_netdev_ethtool_test 74 'dump' "ethtool -d $netdev"
+	kci_netdev_ethtool_test 94 'stats' "ethtool -S $netdev"
+
+	return 0
+}
+
+# stop a netdev
+# arg1: network interface name
+kci_netdev_stop()
+{
+	netdev=$1
+
+	if [ $NETDEV_STARTED -eq 0 ];then
+		echo "SKIP: $netdev: interface kept up"
+		return 0
+	fi
+
+	ip link set "$netdev" down
+	if [ $? -ne 0 ];then
+		echo "FAIL: $netdev: stop interface"
+		return 1
+	fi
+	echo "PASS: $netdev: stop interface"
+	return 0
+}
+
+# run all test on a netdev
+# arg1: network interface name
+kci_test_netdev()
+{
+	NETDEV_STARTED=0
+	IFACE_TO_UPDOWN="$1"
+	IFACE_TO_TEST="$1"
+	#check for VLAN interface
+	MASTER_IFACE="$(echo $1 | cut -d@ -f2)"
+	if [ ! -z "$MASTER_IFACE" ];then
+		IFACE_TO_UPDOWN="$MASTER_IFACE"
+		IFACE_TO_TEST="$(echo $1 | cut -d@ -f1)"
+	fi
+
+	NETDEV_STARTED=0
+	kci_net_start "$IFACE_TO_UPDOWN"
+
+	kci_net_setup "$IFACE_TO_TEST"
+
+	kci_netdev_ethtool "$IFACE_TO_TEST"
+
+	kci_netdev_stop "$IFACE_TO_UPDOWN"
+	return 0
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+ip link show 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without the ip tool"
+	exit $ksft_skip
+fi
+
+TMP_LIST_NETDEV="$(mktemp)"
+if [ ! -e "$TMP_LIST_NETDEV" ];then
+	echo "FAIL: Cannot create a tmp file"
+	exit 1
+fi
+
+ip link show |grep '^[0-9]' | grep -oE '[[:space:]].*eth[0-9]*:|[[:space:]].*enp[0-9]s[0-9]:' | cut -d\  -f2 | cut -d: -f1> "$TMP_LIST_NETDEV"
+
+if [ ! -s "$TMP_LIST_NETDEV" ]; then
+	echo "No valid network device found, creating veth pair"
+	ip link add veth0 type veth peer name veth1
+	echo "veth0" > "$TMP_LIST_NETDEV"
+	veth_created=1
+fi
+
+while read netdev
+do
+	kci_test_netdev "$netdev"
+done < "$TMP_LIST_NETDEV"
+
+#clean up veth interface pair if it was created
+if [ "$veth_created" ]; then
+	ip link delete veth0
+	echo "Removed veth pair"
+fi
+
+rm "$TMP_LIST_NETDEV"
+exit 0
diff --git a/tools/testing/selftests/net/netfilter/.gitignore b/tools/testing/selftests/net/netfilter/.gitignore
new file mode 100644
index 000000000000..5d2be9a00627
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/.gitignore
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+audit_logread
+connect_close
+conntrack_dump_flush
+conntrack_reverse_clash
+sctp_collision
+nf_queue
+udpclash
diff --git a/tools/testing/selftests/net/netfilter/Makefile b/tools/testing/selftests/net/netfilter/Makefile
new file mode 100644
index 000000000000..ee2d1a5254f8
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/Makefile
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+HOSTPKG_CONFIG := pkg-config
+MNL_CFLAGS := $(shell $(HOSTPKG_CONFIG) --cflags libmnl 2>/dev/null)
+MNL_LDLIBS := $(shell $(HOSTPKG_CONFIG) --libs libmnl 2>/dev/null || echo -lmnl)
+
+TEST_PROGS := \
+	br_netfilter.sh \
+	br_netfilter_queue.sh \
+	bridge_brouter.sh \
+	conntrack_clash.sh \
+	conntrack_dump_flush.sh \
+	conntrack_icmp_related.sh \
+	conntrack_ipip_mtu.sh \
+	conntrack_resize.sh \
+	conntrack_reverse_clash.sh \
+	conntrack_sctp_collision.sh \
+	conntrack_tcp_unreplied.sh \
+	conntrack_vrf.sh \
+	ipvs.sh \
+	nf_conntrack_packetdrill.sh \
+	nf_nat_edemux.sh \
+	nft_audit.sh \
+	nft_concat_range.sh \
+	nft_conntrack_helper.sh \
+	nft_fib.sh \
+	nft_flowtable.sh \
+	nft_interface_stress.sh \
+	nft_meta.sh \
+	nft_nat.sh \
+	nft_nat_zones.sh \
+	nft_queue.sh \
+	nft_synproxy.sh \
+	nft_tproxy_tcp.sh \
+	nft_tproxy_udp.sh \
+	nft_zones_many.sh \
+	rpath.sh \
+	vxlan_mtu_frag.sh \
+	xt_string.sh \
+# end of TEST_PROGS
+
+TEST_PROGS_EXTENDED = nft_concat_range_perf.sh
+
+TEST_GEN_FILES = \
+	audit_logread \
+	connect_close \
+	conntrack_dump_flush \
+	conntrack_reverse_clash \
+	nf_queue \
+	sctp_collision \
+	udpclash \
+# end of TEST_GEN_FILES
+
+include ../../lib.mk
+
+$(OUTPUT)/nf_queue: CFLAGS += $(MNL_CFLAGS)
+$(OUTPUT)/nf_queue: LDLIBS += $(MNL_LDLIBS)
+
+$(OUTPUT)/conntrack_dump_flush: CFLAGS += $(MNL_CFLAGS)
+$(OUTPUT)/conntrack_dump_flush: LDLIBS += $(MNL_LDLIBS)
+$(OUTPUT)/udpclash: LDLIBS += -lpthread
+
+TEST_FILES := \
+	lib.sh \
+	packetdrill \
+# end of TEST_FILES
+
+TEST_INCLUDES := \
+	$(wildcard ../lib/sh/*.sh) \
+	../lib.sh \
+# end of TEST_INCLUDES
diff --git a/tools/testing/selftests/net/netfilter/audit_logread.c b/tools/testing/selftests/net/netfilter/audit_logread.c
new file mode 100644
index 000000000000..a0a880fc2d9d
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/audit_logread.c
@@ -0,0 +1,165 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <linux/audit.h>
+#include <linux/netlink.h>
+
+static int fd;
+
+#define MAX_AUDIT_MESSAGE_LENGTH	8970
+struct audit_message {
+	struct nlmsghdr nlh;
+	union {
+		struct audit_status s;
+		char data[MAX_AUDIT_MESSAGE_LENGTH];
+	} u;
+};
+
+int audit_recv(int fd, struct audit_message *rep)
+{
+	struct sockaddr_nl addr;
+	socklen_t addrlen = sizeof(addr);
+	int ret;
+
+	do {
+		ret = recvfrom(fd, rep, sizeof(*rep), 0,
+			       (struct sockaddr *)&addr, &addrlen);
+	} while (ret < 0 && errno == EINTR);
+
+	if (ret < 0 ||
+	    addrlen != sizeof(addr) ||
+	    addr.nl_pid != 0 ||
+	    rep->nlh.nlmsg_type == NLMSG_ERROR) /* short-cut for now */
+		return -1;
+
+	return ret;
+}
+
+int audit_send(int fd, uint16_t type, uint32_t key, uint32_t val)
+{
+	static int seq = 0;
+	struct audit_message msg = {
+		.nlh = {
+			.nlmsg_len   = NLMSG_SPACE(sizeof(msg.u.s)),
+			.nlmsg_type  = type,
+			.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK,
+			.nlmsg_seq   = ++seq,
+		},
+		.u.s = {
+			.mask    = key,
+			.enabled = key == AUDIT_STATUS_ENABLED ? val : 0,
+			.pid     = key == AUDIT_STATUS_PID ? val : 0,
+		}
+	};
+	struct sockaddr_nl addr = {
+		.nl_family = AF_NETLINK,
+	};
+	int ret;
+
+	do {
+		ret = sendto(fd, &msg, msg.nlh.nlmsg_len, 0,
+			     (struct sockaddr *)&addr, sizeof(addr));
+	} while (ret < 0 && errno == EINTR);
+
+	if (ret != (int)msg.nlh.nlmsg_len)
+		return -1;
+	return 0;
+}
+
+int audit_set(int fd, uint32_t key, uint32_t val)
+{
+	struct audit_message rep = { 0 };
+	int ret;
+
+	ret = audit_send(fd, AUDIT_SET, key, val);
+	if (ret)
+		return ret;
+
+	ret = audit_recv(fd, &rep);
+	if (ret < 0)
+		return ret;
+	return 0;
+}
+
+int readlog(int fd)
+{
+	struct audit_message rep = { 0 };
+	int ret = audit_recv(fd, &rep);
+	const char *sep = "";
+	char *k, *v;
+
+	if (ret < 0)
+		return ret;
+
+	if (rep.nlh.nlmsg_type != AUDIT_NETFILTER_CFG)
+		return 0;
+
+	/* skip the initial "audit(...): " part */
+	strtok(rep.u.data, " ");
+
+	while ((k = strtok(NULL, "="))) {
+		v = strtok(NULL, " ");
+
+		/* these vary and/or are uninteresting, ignore */
+		if (!strcmp(k, "pid") ||
+		    !strcmp(k, "comm") ||
+		    !strcmp(k, "subj"))
+			continue;
+
+		/* strip the varying sequence number */
+		if (!strcmp(k, "table"))
+			*strchrnul(v, ':') = '\0';
+
+		printf("%s%s=%s", sep, k, v);
+		sep = " ";
+	}
+	if (*sep) {
+		printf("\n");
+		fflush(stdout);
+	}
+	return 0;
+}
+
+void cleanup(int sig)
+{
+	audit_set(fd, AUDIT_STATUS_ENABLED, 0);
+	close(fd);
+	if (sig)
+		exit(0);
+}
+
+int main(int argc, char **argv)
+{
+	struct sigaction act = {
+		.sa_handler = cleanup,
+	};
+
+	fd = socket(PF_NETLINK, SOCK_RAW, NETLINK_AUDIT);
+	if (fd < 0) {
+		perror("Can't open netlink socket");
+		return -1;
+	}
+
+	if (sigaction(SIGTERM, &act, NULL) < 0 ||
+	    sigaction(SIGINT, &act, NULL) < 0) {
+		perror("Can't set signal handler");
+		close(fd);
+		return -1;
+	}
+
+	audit_set(fd, AUDIT_STATUS_ENABLED, 1);
+	audit_set(fd, AUDIT_STATUS_PID, getpid());
+
+	while (1)
+		readlog(fd);
+}
diff --git a/tools/testing/selftests/net/netfilter/br_netfilter.sh b/tools/testing/selftests/net/netfilter/br_netfilter.sh
new file mode 100755
index 000000000000..011de8763094
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/br_netfilter.sh
@@ -0,0 +1,175 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test for legacy br_netfilter module combined with connection tracking,
+# a combination that doesn't really work.
+# Multicast/broadcast packets race for hash table insertion.
+
+#           eth0    br0     eth0
+# setup is: ns1 <->,ns0 <-> ns3
+#           ns2 <-'    `'-> ns4
+
+source lib.sh
+
+checktool "nft --version" "run test without nft tool"
+
+read t < /proc/sys/kernel/tainted
+if [ "$t" -ne 0 ];then
+	echo SKIP: kernel is tainted
+	exit $ksft_skip
+fi
+
+cleanup() {
+	cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+setup_ns ns0 ns1 ns2 ns3 ns4
+
+ret=0
+
+do_ping()
+{
+	fromns="$1"
+	dstip="$2"
+
+	if ! ip netns exec "$fromns" ping -c 1 -q "$dstip" > /dev/null; then
+		echo "ERROR: ping from $fromns to $dstip"
+		ip netns exec "$ns0" nft list ruleset
+		ret=1
+	fi
+}
+
+bcast_ping()
+{
+	fromns="$1"
+	dstip="$2"
+
+	local packets=500
+
+	[ "$KSFT_MACHINE_SLOW" = yes ] && packets=100
+
+	for i in $(seq 1 $packets); do
+		if ! ip netns exec "$fromns" ping -q -f -b -c 1 -q "$dstip" > /dev/null 2>&1; then
+			echo "ERROR: ping -b from $fromns to $dstip"
+			ip netns exec "$ns0" nft list ruleset
+			ret=1
+			break
+		fi
+	done
+}
+
+if ! ip link add veth1 netns "$ns0" type veth peer name eth0 netns "$ns1"; then
+	echo "SKIP: Can't create veth device"
+	exit $ksft_skip
+fi
+
+ip link add veth2 netns "$ns0" type veth peer name eth0 netns "$ns2"
+ip link add veth3 netns "$ns0" type veth peer name eth0 netns "$ns3"
+ip link add veth4 netns "$ns0" type veth peer name eth0 netns "$ns4"
+
+for i in $(seq 1 4); do
+  ip -net "$ns0" link set "veth$i" up
+done
+
+if ! ip -net "$ns0" link add br0 type bridge stp_state 0 forward_delay 0 nf_call_iptables 1 nf_call_ip6tables 1 nf_call_arptables 1; then
+	echo "SKIP: Can't create bridge br0"
+	exit $ksft_skip
+fi
+
+# make veth0,1,2 part of bridge.
+for i in $(seq 1 3); do
+  ip -net "$ns0" link set "veth$i" master br0
+done
+
+# add a macvlan on top of the bridge.
+MACVLAN_ADDR=ba:f3:13:37:42:23
+ip -net "$ns0" link add link br0 name macvlan0 type macvlan mode private
+ip -net "$ns0" link set macvlan0 address ${MACVLAN_ADDR}
+ip -net "$ns0" link set macvlan0 up
+ip -net "$ns0" addr add 10.23.0.1/24 dev macvlan0
+
+# add a macvlan on top of veth4.
+MACVLAN_ADDR=ba:f3:13:37:42:24
+ip -net "$ns0" link add link veth4 name macvlan4 type macvlan mode passthru
+ip -net "$ns0" link set macvlan4 address ${MACVLAN_ADDR}
+ip -net "$ns0" link set macvlan4 up
+
+# make the macvlan part of the bridge.
+# veth4 is not a bridge port, only the macvlan on top of it.
+ip -net "$ns0" link set macvlan4 master br0
+
+ip -net "$ns0" link set br0 up
+ip -net "$ns0" addr add 10.0.0.1/24 dev br0
+
+modprobe -q br_netfilter
+if ! ip netns exec "$ns0" sysctl -q net.bridge.bridge-nf-call-iptables=1; then
+	echo "SKIP: bridge netfilter not available"
+	ret=$ksft_skip
+fi
+
+# for testing, so namespaces will reply to ping -b probes.
+ip netns exec "$ns0" sysctl -q net.ipv4.icmp_echo_ignore_broadcasts=0
+
+# enable conntrack in ns0 and drop broadcast packets in forward to
+# avoid them from getting confirmed in the postrouting hook before
+# the cloned skb is passed up the stack.
+ip netns exec "$ns0" nft -f - <<EOF
+table ip filter {
+	chain input {
+		type filter hook input priority 1; policy accept
+		iifname br0 counter
+		ct state new accept
+	}
+}
+
+table bridge filter {
+	chain forward {
+		type filter hook forward priority 0; policy accept
+		meta pkttype broadcast ip protocol icmp counter drop
+	}
+}
+EOF
+if [ "$?" -ne 0 ];then
+	echo "SKIP: could not add nftables ruleset"
+	exit $ksft_skip
+fi
+
+# place 1, 2 & 3 in same subnet, connected via ns0:br0.
+# ns4 is placed in same subnet as well, but its not
+# part of the bridge: the corresponding veth4 is not
+# part of the bridge, only its macvlan interface.
+for i in $(seq 1 4); do
+  eval ip -net \$ns"$i" link set eth0 up
+done
+for i in $(seq 1 2); do
+  eval ip -net \$ns"$i" addr add "10.0.0.1$i/24" dev eth0
+done
+
+ip -net "$ns3" addr add 10.23.0.13/24 dev eth0
+ip -net "$ns4" addr add 10.23.0.14/24 dev eth0
+
+# test basic connectivity
+do_ping "$ns1" 10.0.0.12
+do_ping "$ns3" 10.23.0.1
+do_ping "$ns4" 10.23.0.1
+
+bcast_ping "$ns1" 10.0.0.255
+
+# This should deliver broadcast to macvlan0, which is on top of ns0:br0.
+bcast_ping "$ns3" 10.23.0.255
+
+# same, this time via veth4:macvlan4.
+bcast_ping "$ns4" 10.23.0.255
+
+read t < /proc/sys/kernel/tainted
+if [ "$t" -eq 0 ];then
+	echo PASS: kernel not tainted
+else
+	echo ERROR: kernel is tainted
+	dmesg
+	ret=1
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/br_netfilter_queue.sh b/tools/testing/selftests/net/netfilter/br_netfilter_queue.sh
new file mode 100755
index 000000000000..4788641717d9
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/br_netfilter_queue.sh
@@ -0,0 +1,85 @@
+#!/bin/bash
+
+source lib.sh
+
+checktool "nft --version" "run test without nft tool"
+
+read t < /proc/sys/kernel/tainted
+if [ "$t" -ne 0 ];then
+	echo SKIP: kernel is tainted
+	exit $ksft_skip
+fi
+
+cleanup() {
+	cleanup_all_ns
+}
+
+setup_ns c1 c2 c3 sender
+
+trap cleanup EXIT
+
+nf_queue_wait()
+{
+	grep -q "^ *$1 " "/proc/self/net/netfilter/nfnetlink_queue"
+}
+
+port_add() {
+	ns="$1"
+	dev="$2"
+	a="$3"
+
+	ip link add name "$dev" type veth peer name "$dev" netns "$ns"
+
+	ip -net "$ns" addr add 192.168.1."$a"/24 dev "$dev"
+	ip -net "$ns" link set "$dev" up
+
+	ip link set "$dev" master br0
+	ip link set "$dev" up
+}
+
+[ "${1}" != "run" ] && { unshare -n "${0}" run; exit $?; }
+
+ip link add br0 type bridge
+ip addr add 192.168.1.254/24 dev br0
+
+port_add "$c1" "c1" 1
+port_add "$c2" "c2" 2
+port_add "$c3" "c3" 3
+port_add "$sender" "sender" 253
+
+ip link set br0 up
+
+modprobe -q br_netfilter
+
+sysctl net.bridge.bridge-nf-call-iptables=1 || exit 1
+
+ip netns exec "$sender" ping -I sender -c1 192.168.1.1 || exit 1
+ip netns exec "$sender" ping -I sender -c1 192.168.1.2 || exit 2
+ip netns exec "$sender" ping -I sender -c1 192.168.1.3 || exit 3
+
+nft -f /dev/stdin <<EOF
+table ip filter {
+	chain forward {
+		type filter hook forward priority 0; policy accept;
+		ct state new counter
+		ip protocol icmp counter queue num 0 bypass
+	}
+}
+EOF
+./nf_queue -t 5 > /dev/null &
+
+busywait 5000 nf_queue_wait
+
+for i in $(seq 1 5); do conntrack -F > /dev/null 2> /dev/null; sleep 0.1 ; done &
+ip netns exec "$sender" ping -I sender -f -c 50 -b 192.168.1.255
+
+read t < /proc/sys/kernel/tainted
+if [ "$t" -eq 0 ];then
+	echo PASS: kernel not tainted
+else
+	echo ERROR: kernel is tainted
+	dmesg
+	exit 1
+fi
+
+exit 0
diff --git a/tools/testing/selftests/net/netfilter/bridge_brouter.sh b/tools/testing/selftests/net/netfilter/bridge_brouter.sh
new file mode 100755
index 000000000000..ea76f2bc2f59
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/bridge_brouter.sh
@@ -0,0 +1,120 @@
+#!/bin/bash
+#
+# This test is for bridge 'brouting', i.e. make some packets being routed
+# rather than getting bridged even though they arrive on interface that is
+# part of a bridge.
+
+#           eth0    br0     eth0
+# setup is: ns1 <-> nsbr <-> ns2
+
+source lib.sh
+
+if ! ebtables -V > /dev/null 2>&1;then
+	echo "SKIP: Could not run test without ebtables"
+	exit $ksft_skip
+fi
+
+cleanup() {
+	cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+setup_ns nsbr ns1 ns2
+
+if ! ip link add veth0 netns "$nsbr" type veth peer name eth0 netns "$ns1"; then
+	echo "SKIP: Can't create veth device"
+	exit $ksft_skip
+fi
+ip link add veth1 netns "$nsbr" type veth peer name eth0 netns "$ns2"
+
+if ! ip -net "$nsbr" link add br0 type bridge; then
+	echo "SKIP: Can't create bridge br0"
+	exit $ksft_skip
+fi
+
+ip -net "$nsbr" link set veth0 up
+ip -net "$nsbr" link set veth1 up
+
+ip -net "$nsbr" link set veth0 master br0
+ip -net "$nsbr" link set veth1 master br0
+ip -net "$nsbr" link set br0 up
+ip -net "$nsbr" addr add 10.0.0.1/24 dev br0
+
+# place both in same subnet, ${ns1} and ${ns2} connected via ${nsbr}:br0
+ip -net "$ns1" link set eth0 up
+ip -net "$ns2" link set eth0 up
+ip -net "$ns1" addr add 10.0.0.11/24 dev eth0
+ip -net "$ns2" addr add 10.0.0.12/24 dev eth0
+
+test_ebtables_broute()
+{
+	# redirect is needed so the dstmac is rewritten to the bridge itself,
+	# ip stack won't process OTHERHOST (foreign unicast mac) packets.
+	if ! ip netns exec "$nsbr" ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP; then
+		echo "SKIP: Could not add ebtables broute redirect rule"
+		return $ksft_skip
+	fi
+
+	ip netns exec "$nsbr" sysctl -q net.ipv4.conf.veth0.forwarding=0
+
+	# ping net${ns1}, expected to not work (ip forwarding is off)
+	if ip netns exec "$ns1" ping -q -c 1 10.0.0.12 -W 0.5 > /dev/null 2>&1; then
+		echo "ERROR: ping works, should have failed" 1>&2
+		return 1
+	fi
+
+	# enable forwarding on both interfaces.
+	# neither needs an ip address, but at least the bridge needs
+	# an ip address in same network segment as ${ns1} and ${ns2} (${nsbr}
+	# needs to be able to determine route for to-be-forwarded packet).
+	ip netns exec "$nsbr" sysctl -q net.ipv4.conf.veth0.forwarding=1
+	ip netns exec "$nsbr" sysctl -q net.ipv4.conf.veth1.forwarding=1
+
+	if ! ip netns exec "$ns1" ping -q -c 1 10.0.0.12 > /dev/null; then
+		echo "ERROR: ping did not work, but it should (broute+forward)" 1>&2
+		return 1
+	fi
+
+	echo "PASS: ${ns1}/${ns2} connectivity with active broute rule"
+	ip netns exec "$nsbr" ebtables -t broute -F
+
+	# ping net${ns1}, expected to work (frames are bridged)
+	if ! ip netns exec "$ns1" ping -q -c 1 10.0.0.12 > /dev/null; then
+		echo "ERROR: ping did not work, but it should (bridged)" 1>&2
+		return 1
+	fi
+
+	ip netns exec "$nsbr" ebtables -t filter -A FORWARD -p ipv4 --ip-protocol icmp -j DROP
+
+	# ping net${ns1}, expected to not work (DROP in bridge forward)
+	if ip netns exec "$ns1" ping -q -c 1 10.0.0.12 -W 0.5 > /dev/null 2>&1; then
+		echo "ERROR: ping works, should have failed (icmp forward drop)" 1>&2
+		return 1
+	fi
+
+	# re-activate brouter
+	ip netns exec "$nsbr" ebtables -t broute -A BROUTING -p ipv4 --ip-protocol icmp -j redirect --redirect-target=DROP
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.0.11 > /dev/null; then
+		echo "ERROR: ping did not work, but it should (broute+forward 2)" 1>&2
+		return 1
+	fi
+
+	echo "PASS: ${ns1}/${ns2} connectivity with active broute rule and bridge forward drop"
+	return 0
+}
+
+# test basic connectivity
+if ! ip netns exec "$ns1" ping -c 1 -q 10.0.0.12 > /dev/null; then
+    echo "ERROR: Could not reach ${ns2} from ${ns1}" 1>&2
+    exit 1
+fi
+
+if ! ip netns exec "$ns2" ping -c 1 -q 10.0.0.11 > /dev/null; then
+    echo "ERROR: Could not reach ${ns1} from ${ns2}" 1>&2
+    exit 1
+fi
+
+test_ebtables_broute
+exit $?
diff --git a/tools/testing/selftests/net/netfilter/config b/tools/testing/selftests/net/netfilter/config
new file mode 100644
index 000000000000..12ce61fa15a8
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/config
@@ -0,0 +1,101 @@
+CONFIG_AUDIT=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_BRIDGE=m
+CONFIG_BRIDGE_EBT_BROUTE=m
+CONFIG_BRIDGE_EBT_IP=m
+CONFIG_BRIDGE_EBT_REDIRECT=m
+CONFIG_BRIDGE_EBT_T_FILTER=m
+CONFIG_BRIDGE_NETFILTER=m
+CONFIG_BRIDGE_NF_EBTABLES=m
+CONFIG_BRIDGE_NF_EBTABLES_LEGACY=m
+CONFIG_BRIDGE_VLAN_FILTERING=y
+CONFIG_CGROUP_BPF=y
+CONFIG_CRYPTO_SHA1=m
+CONFIG_DUMMY=m
+CONFIG_INET_DIAG=m
+CONFIG_INET_ESP=m
+CONFIG_INET_SCTP_DIAG=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_IPTABLES_LEGACY=m
+CONFIG_IP6_NF_MATCH_RPFILTER=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_IPTABLES_LEGACY=m
+CONFIG_IP_NF_MATCH_RPFILTER=m
+CONFIG_IP_NF_NAT=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_SCTP=m
+CONFIG_IPV6=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IP_VS=m
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_RR=m
+CONFIG_MACVLAN=m
+CONFIG_NAMESPACES=y
+CONFIG_NET_CLS_U32=m
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NETFILTER_NETLINK=m
+CONFIG_NETFILTER_NETLINK_QUEUE=m
+CONFIG_NETFILTER_SYNPROXY=m
+CONFIG_NETFILTER_XTABLES=m
+CONFIG_NETFILTER_XTABLES_LEGACY=y
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_NAT=m
+CONFIG_NETFILTER_XT_TARGET_REDIRECT=m
+CONFIG_NET_IPIP=m
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_NS=y
+CONFIG_NET_PKTGEN=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_VRF=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CONNTRACK_PROCFS=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_CT_NETLINK=m
+CONFIG_NF_CT_PROTO_SCTP=y
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_FLOW_TABLE_INET=m
+CONFIG_NF_LOG_IPV4=m
+CONFIG_NF_LOG_IPV6=m
+CONFIG_NF_NAT=m
+CONFIG_NF_NAT_MASQUERADE=y
+CONFIG_NF_NAT_REDIRECT=y
+CONFIG_NF_TABLES=m
+CONFIG_NF_TABLES_BRIDGE=m
+CONFIG_NF_TABLES_INET=y
+CONFIG_NF_TABLES_IPV4=y
+CONFIG_NF_TABLES_IPV6=y
+CONFIG_NF_TABLES_NETDEV=y
+CONFIG_NFT_BRIDGE_META=m
+CONFIG_NFT_COMPAT=m
+CONFIG_NFT_CT=m
+CONFIG_NFT_FIB=m
+CONFIG_NFT_FIB_INET=m
+CONFIG_NFT_FIB_IPV4=m
+CONFIG_NFT_FIB_IPV6=m
+CONFIG_NFT_FLOW_OFFLOAD=m
+CONFIG_NFT_LIMIT=m
+CONFIG_NFT_LOG=m
+CONFIG_NFT_MASQ=m
+CONFIG_NFT_NAT=m
+CONFIG_NFT_NUMGEN=m
+CONFIG_NFT_QUEUE=m
+CONFIG_NFT_QUOTA=m
+CONFIG_NFT_REDIR=m
+CONFIG_NFT_SYNPROXY=m
+CONFIG_NFT_TPROXY=m
+CONFIG_TUN=m
+CONFIG_VETH=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VXLAN=m
+CONFIG_XFRM_STATISTICS=y
+CONFIG_XFRM_USER=m
diff --git a/tools/testing/selftests/net/netfilter/connect_close.c b/tools/testing/selftests/net/netfilter/connect_close.c
new file mode 100644
index 000000000000..1c3b0add54c4
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/connect_close.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+
+#include <arpa/inet.h>
+#include <sys/socket.h>
+
+#define PORT 12345
+#define RUNTIME 10
+
+static struct {
+	unsigned int timeout;
+	unsigned int port;
+} opts = {
+	.timeout = RUNTIME,
+	.port = PORT,
+};
+
+static void handler(int sig)
+{
+	_exit(sig == SIGALRM ? 0 : 1);
+}
+
+static void set_timeout(void)
+{
+	struct sigaction action = {
+		.sa_handler = handler,
+	};
+
+	sigaction(SIGALRM, &action, NULL);
+
+	alarm(opts.timeout);
+}
+
+static void do_connect(const struct sockaddr_in *dst)
+{
+	int s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+
+	if (s >= 0)
+		fcntl(s, F_SETFL, O_NONBLOCK);
+
+	connect(s, (struct sockaddr *)dst, sizeof(*dst));
+	close(s);
+}
+
+static void do_accept(const struct sockaddr_in *src)
+{
+	int c, one = 1, s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+
+	if (s < 0)
+		return;
+
+	setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
+	setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one));
+
+	bind(s, (struct sockaddr *)src, sizeof(*src));
+
+	listen(s, 16);
+
+	c = accept(s, NULL, NULL);
+	if (c >= 0)
+		close(c);
+
+	close(s);
+}
+
+static int accept_loop(void)
+{
+	struct sockaddr_in src = {
+		.sin_family = AF_INET,
+		.sin_port = htons(opts.port),
+	};
+
+	inet_pton(AF_INET, "127.0.0.1", &src.sin_addr);
+
+	set_timeout();
+
+	for (;;)
+		do_accept(&src);
+
+	return 1;
+}
+
+static int connect_loop(void)
+{
+	struct sockaddr_in dst = {
+		.sin_family = AF_INET,
+		.sin_port = htons(opts.port),
+	};
+
+	inet_pton(AF_INET, "127.0.0.1", &dst.sin_addr);
+
+	set_timeout();
+
+	for (;;)
+		do_connect(&dst);
+
+	return 1;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "t:p:")) != -1) {
+		switch (c) {
+		case 't':
+			opts.timeout = atoi(optarg);
+			break;
+		case 'p':
+			opts.port = atoi(optarg);
+			break;
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	pid_t p;
+
+	parse_opts(argc, argv);
+
+	p = fork();
+	if (p < 0)
+		return 111;
+
+	if (p > 0)
+		return accept_loop();
+
+	return connect_loop();
+}
diff --git a/tools/testing/selftests/net/netfilter/conntrack_clash.sh b/tools/testing/selftests/net/netfilter/conntrack_clash.sh
new file mode 100755
index 000000000000..7fc6c5dbd551
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_clash.sh
@@ -0,0 +1,174 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+clash_resolution_active=0
+dport=22111
+ret=0
+
+cleanup()
+{
+	# netns cleanup also zaps any remaining socat echo server.
+	cleanup_all_ns
+}
+
+checktool "nft --version" "run test without nft"
+checktool "conntrack --version" "run test without conntrack"
+checktool "socat -h" "run test without socat"
+
+trap cleanup EXIT
+
+setup_ns nsclient1 nsclient2 nsrouter
+
+ip netns exec "$nsrouter" nft -f -<<EOF
+table ip t {
+	chain lb {
+		meta l4proto udp dnat to numgen random mod 3 map { 0 : 10.0.2.1 . 9000, 1 : 10.0.2.1 . 9001, 2 : 10.0.2.1 . 9002 }
+	}
+
+	chain prerouting {
+		type nat hook prerouting priority dstnat
+
+		udp dport $dport counter jump lb
+	}
+
+	chain output {
+		type nat hook output priority dstnat
+
+		udp dport $dport counter jump lb
+	}
+}
+EOF
+
+load_simple_ruleset()
+{
+ip netns exec "$1" nft -f -<<EOF
+table ip t {
+	chain forward {
+		type filter hook forward priority 0
+
+		ct state new counter
+	}
+}
+EOF
+}
+
+spawn_servers()
+{
+	local ns="$1"
+	local ports="9000 9001 9002"
+
+	for port in $ports; do
+		ip netns exec "$ns" socat UDP-RECVFROM:$port,fork PIPE 2>/dev/null &
+	done
+
+	for port in $ports; do
+		wait_local_port_listen "$ns" $port udp
+	done
+}
+
+add_addr()
+{
+	local ns="$1"
+	local dev="$2"
+	local i="$3"
+	local j="$4"
+
+	ip -net "$ns" link set "$dev" up
+	ip -net "$ns" addr add "10.0.$i.$j/24" dev "$dev"
+}
+
+ping_test()
+{
+	local ns="$1"
+	local daddr="$2"
+
+	if ! ip netns exec "$ns" ping -q -c 1 $daddr > /dev/null;then
+		echo "FAIL: ping from $ns to $daddr"
+		exit 1
+	fi
+}
+
+run_one_clash_test()
+{
+	local ns="$1"
+	local ctns="$2"
+	local daddr="$3"
+	local dport="$4"
+	local entries
+	local cre
+
+	if ! ip netns exec "$ns" timeout 30 ./udpclash $daddr $dport;then
+		echo "INFO: did not receive expected number of replies for $daddr:$dport"
+		ip netns exec "$ctns" conntrack -S
+		# don't fail: check if clash resolution triggered after all.
+	fi
+
+	entries=$(ip netns exec "$ctns" conntrack -S | wc -l)
+	cre=$(ip netns exec "$ctns" conntrack -S | grep "clash_resolve=0" | wc -l)
+
+	if [ "$cre" -ne "$entries" ];then
+		clash_resolution_active=1
+		return 0
+	fi
+
+	# not a failure: clash resolution logic did not trigger.
+	# With right timing, xmit completed sequentially and
+	# no parallel insertion occurs.
+	return $ksft_skip
+}
+
+run_clash_test()
+{
+	local ns="$1"
+	local ctns="$2"
+	local daddr="$3"
+	local dport="$4"
+	local softerr=0
+
+	for i in $(seq 1 10);do
+		run_one_clash_test "$ns" "$ctns" "$daddr" "$dport"
+		local rv=$?
+		if [ $rv -eq 0 ];then
+			echo "PASS: clash resolution test for $daddr:$dport on attempt $i"
+			return 0
+		elif [ $rv -eq $ksft_skip ]; then
+			softerr=1
+		fi
+	done
+
+	[ $softerr -eq 1 ] && echo "SKIP: clash resolution for $daddr:$dport did not trigger"
+}
+
+ip link add veth0 netns "$nsclient1" type veth peer name veth0 netns "$nsrouter"
+ip link add veth0 netns "$nsclient2" type veth peer name veth1 netns "$nsrouter"
+add_addr "$nsclient1" veth0 1 1
+add_addr "$nsclient2" veth0 2 1
+add_addr "$nsrouter" veth0 1 99
+add_addr "$nsrouter" veth1 2 99
+
+ip -net "$nsclient1" route add default via 10.0.1.99
+ip -net "$nsclient2" route add default via 10.0.2.99
+ip netns exec "$nsrouter" sysctl -q net.ipv4.ip_forward=1
+
+ping_test "$nsclient1" 10.0.1.99
+ping_test "$nsclient1" 10.0.2.1
+ping_test "$nsclient2" 10.0.1.1
+
+spawn_servers "$nsclient2"
+
+# exercise clash resolution with nat:
+# nsrouter is supposed to dnat to 10.0.2.1:900{0,1,2,3}.
+run_clash_test "$nsclient1" "$nsrouter" 10.0.1.99 "$dport"
+
+# exercise clash resolution without nat.
+load_simple_ruleset "$nsclient2"
+run_clash_test "$nsclient2" "$nsclient2" 127.0.0.1 9001
+
+if [ $clash_resolution_active -eq 0 ];then
+	[ "$ret" -eq 0 ] && ret=$ksft_skip
+	echo "SKIP: Clash resolution did not trigger"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
new file mode 100644
index 000000000000..5cecb8a1bc94
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.c
@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <time.h>
+#include <libmnl/libmnl.h>
+#include <netinet/ip.h>
+
+#include <linux/netlink.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_conntrack.h>
+#include <linux/netfilter/nf_conntrack_tcp.h>
+#include "kselftest_harness.h"
+
+#define TEST_ZONE_ID 123
+#define NF_CT_DEFAULT_ZONE_ID 0
+
+static int reply_counter;
+
+static int build_cta_tuple_v4(struct nlmsghdr *nlh, int type,
+			      uint32_t src_ip, uint32_t dst_ip,
+			      uint16_t src_port, uint16_t dst_port)
+{
+	struct nlattr *nest, *nest_ip, *nest_proto;
+
+	nest = mnl_attr_nest_start(nlh, type);
+	if (!nest)
+		return -1;
+
+	nest_ip = mnl_attr_nest_start(nlh, CTA_TUPLE_IP);
+	if (!nest_ip)
+		return -1;
+	mnl_attr_put_u32(nlh, CTA_IP_V4_SRC, src_ip);
+	mnl_attr_put_u32(nlh, CTA_IP_V4_DST, dst_ip);
+	mnl_attr_nest_end(nlh, nest_ip);
+
+	nest_proto = mnl_attr_nest_start(nlh, CTA_TUPLE_PROTO);
+	if (!nest_proto)
+		return -1;
+	mnl_attr_put_u8(nlh, CTA_PROTO_NUM, 6);
+	mnl_attr_put_u16(nlh, CTA_PROTO_SRC_PORT, htons(src_port));
+	mnl_attr_put_u16(nlh, CTA_PROTO_DST_PORT, htons(dst_port));
+	mnl_attr_nest_end(nlh, nest_proto);
+
+	mnl_attr_nest_end(nlh, nest);
+
+	return 0;
+}
+
+static int build_cta_tuple_v6(struct nlmsghdr *nlh, int type,
+			      struct in6_addr src_ip, struct in6_addr dst_ip,
+			      uint16_t src_port, uint16_t dst_port)
+{
+	struct nlattr *nest, *nest_ip, *nest_proto;
+
+	nest = mnl_attr_nest_start(nlh, type);
+	if (!nest)
+		return -1;
+
+	nest_ip = mnl_attr_nest_start(nlh, CTA_TUPLE_IP);
+	if (!nest_ip)
+		return -1;
+	mnl_attr_put(nlh, CTA_IP_V6_SRC, sizeof(struct in6_addr), &src_ip);
+	mnl_attr_put(nlh, CTA_IP_V6_DST, sizeof(struct in6_addr), &dst_ip);
+	mnl_attr_nest_end(nlh, nest_ip);
+
+	nest_proto = mnl_attr_nest_start(nlh, CTA_TUPLE_PROTO);
+	if (!nest_proto)
+		return -1;
+	mnl_attr_put_u8(nlh, CTA_PROTO_NUM, 6);
+	mnl_attr_put_u16(nlh, CTA_PROTO_SRC_PORT, htons(src_port));
+	mnl_attr_put_u16(nlh, CTA_PROTO_DST_PORT, htons(dst_port));
+	mnl_attr_nest_end(nlh, nest_proto);
+
+	mnl_attr_nest_end(nlh, nest);
+
+	return 0;
+}
+
+static int build_cta_proto(struct nlmsghdr *nlh)
+{
+	struct nlattr *nest, *nest_proto;
+
+	nest = mnl_attr_nest_start(nlh, CTA_PROTOINFO);
+	if (!nest)
+		return -1;
+
+	nest_proto = mnl_attr_nest_start(nlh, CTA_PROTOINFO_TCP);
+	if (!nest_proto)
+		return -1;
+	mnl_attr_put_u8(nlh, CTA_PROTOINFO_TCP_STATE, TCP_CONNTRACK_ESTABLISHED);
+	mnl_attr_put_u16(nlh, CTA_PROTOINFO_TCP_FLAGS_ORIGINAL, 0x0a0a);
+	mnl_attr_put_u16(nlh, CTA_PROTOINFO_TCP_FLAGS_REPLY, 0x0a0a);
+	mnl_attr_nest_end(nlh, nest_proto);
+
+	mnl_attr_nest_end(nlh, nest);
+
+	return 0;
+}
+
+static int conntrack_data_insert(struct mnl_socket *sock, struct nlmsghdr *nlh,
+				 uint16_t zone)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlmsghdr *rplnlh;
+	unsigned int portid;
+	int ret;
+
+	portid = mnl_socket_get_portid(sock);
+
+	ret = build_cta_proto(nlh);
+	if (ret < 0) {
+		perror("build_cta_proto");
+		return -1;
+	}
+	mnl_attr_put_u32(nlh, CTA_TIMEOUT, htonl(20000));
+	mnl_attr_put_u16(nlh, CTA_ZONE, htons(zone));
+
+	if (mnl_socket_sendto(sock, nlh, nlh->nlmsg_len) < 0) {
+		perror("mnl_socket_sendto");
+		return -1;
+	}
+
+	ret = mnl_socket_recvfrom(sock, buf, MNL_SOCKET_BUFFER_SIZE);
+	if (ret < 0) {
+		perror("mnl_socket_recvfrom");
+		return ret;
+	}
+
+	ret = mnl_cb_run(buf, ret, nlh->nlmsg_seq, portid, NULL, NULL);
+	if (ret < 0) {
+		if (errno == EEXIST) {
+			/* The entries are probably still there from a previous
+			 * run. So we are good
+			 */
+			return 0;
+		}
+		perror("mnl_cb_run");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int conntrack_data_generate_v4(struct mnl_socket *sock, uint32_t src_ip,
+				      uint32_t dst_ip, uint16_t zone)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfh;
+	int ret;
+
+	nlh = mnl_nlmsg_put_header(buf);
+	nlh->nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8) | IPCTNL_MSG_CT_NEW;
+	nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE |
+			   NLM_F_ACK | NLM_F_EXCL;
+	nlh->nlmsg_seq = time(NULL);
+
+	nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg));
+	nfh->nfgen_family = AF_INET;
+	nfh->version = NFNETLINK_V0;
+	nfh->res_id = 0;
+
+	ret = build_cta_tuple_v4(nlh, CTA_TUPLE_ORIG, src_ip, dst_ip, 12345, 443);
+	if (ret < 0) {
+		perror("build_cta_tuple_v4");
+		return ret;
+	}
+	ret = build_cta_tuple_v4(nlh, CTA_TUPLE_REPLY, dst_ip, src_ip, 443, 12345);
+	if (ret < 0) {
+		perror("build_cta_tuple_v4");
+		return ret;
+	}
+	return conntrack_data_insert(sock, nlh, zone);
+}
+
+static int conntrack_data_generate_v6(struct mnl_socket *sock,
+				      struct in6_addr src_ip,
+				      struct in6_addr dst_ip,
+				      uint16_t zone)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfh;
+	int ret;
+
+	nlh = mnl_nlmsg_put_header(buf);
+	nlh->nlmsg_type = (NFNL_SUBSYS_CTNETLINK << 8) | IPCTNL_MSG_CT_NEW;
+	nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE |
+			   NLM_F_ACK | NLM_F_EXCL;
+	nlh->nlmsg_seq = time(NULL);
+
+	nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg));
+	nfh->nfgen_family = AF_INET6;
+	nfh->version = NFNETLINK_V0;
+	nfh->res_id = 0;
+
+	ret = build_cta_tuple_v6(nlh, CTA_TUPLE_ORIG, src_ip, dst_ip,
+				 12345, 443);
+	if (ret < 0) {
+		perror("build_cta_tuple_v6");
+		return ret;
+	}
+	ret = build_cta_tuple_v6(nlh, CTA_TUPLE_REPLY, dst_ip, src_ip,
+				 12345, 443);
+	if (ret < 0) {
+		perror("build_cta_tuple_v6");
+		return ret;
+	}
+	return conntrack_data_insert(sock, nlh, zone);
+}
+
+static int count_entries(const struct nlmsghdr *nlh, void *data)
+{
+	reply_counter++;
+	return MNL_CB_OK;
+}
+
+static int conntracK_count_zone(struct mnl_socket *sock, uint16_t zone)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlmsghdr *nlh, *rplnlh;
+	struct nfgenmsg *nfh;
+	struct nlattr *nest;
+	unsigned int portid;
+	int ret;
+
+	portid = mnl_socket_get_portid(sock);
+
+	nlh = mnl_nlmsg_put_header(buf);
+	nlh->nlmsg_type	= (NFNL_SUBSYS_CTNETLINK << 8) | IPCTNL_MSG_CT_GET;
+	nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP;
+	nlh->nlmsg_seq = time(NULL);
+
+	nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg));
+	nfh->nfgen_family = AF_UNSPEC;
+	nfh->version = NFNETLINK_V0;
+	nfh->res_id = 0;
+
+	mnl_attr_put_u16(nlh, CTA_ZONE, htons(zone));
+
+	ret = mnl_socket_sendto(sock, nlh, nlh->nlmsg_len);
+	if (ret < 0) {
+		perror("mnl_socket_sendto");
+		return ret;
+	}
+
+	reply_counter = 0;
+	ret = mnl_socket_recvfrom(sock, buf, MNL_SOCKET_BUFFER_SIZE);
+	while (ret > 0) {
+		ret = mnl_cb_run(buf, ret, nlh->nlmsg_seq, portid,
+				 count_entries, NULL);
+		if (ret <= MNL_CB_STOP)
+			break;
+
+		ret = mnl_socket_recvfrom(sock, buf, MNL_SOCKET_BUFFER_SIZE);
+	}
+	if (ret < 0) {
+		perror("mnl_socket_recvfrom");
+		return ret;
+	}
+
+	return reply_counter;
+}
+
+static int conntrack_flush_zone(struct mnl_socket *sock, uint16_t zone)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	struct nlmsghdr *nlh, *rplnlh;
+	struct nfgenmsg *nfh;
+	struct nlattr *nest;
+	unsigned int portid;
+	int ret;
+
+	portid = mnl_socket_get_portid(sock);
+
+	nlh = mnl_nlmsg_put_header(buf);
+	nlh->nlmsg_type	= (NFNL_SUBSYS_CTNETLINK << 8) | IPCTNL_MSG_CT_DELETE;
+	nlh->nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+	nlh->nlmsg_seq = time(NULL);
+
+	nfh = mnl_nlmsg_put_extra_header(nlh, sizeof(struct nfgenmsg));
+	nfh->nfgen_family = AF_UNSPEC;
+	nfh->version = NFNETLINK_V0;
+	nfh->res_id = 0;
+
+	mnl_attr_put_u16(nlh, CTA_ZONE, htons(zone));
+
+	ret = mnl_socket_sendto(sock, nlh, nlh->nlmsg_len);
+	if (ret < 0) {
+		perror("mnl_socket_sendto");
+		return ret;
+	}
+
+	ret = mnl_socket_recvfrom(sock, buf, MNL_SOCKET_BUFFER_SIZE);
+	if (ret < 0) {
+		perror("mnl_socket_recvfrom");
+		return ret;
+	}
+
+	ret = mnl_cb_run(buf, ret, nlh->nlmsg_seq, portid, NULL, NULL);
+	if (ret < 0) {
+		perror("mnl_cb_run");
+		return ret;
+	}
+
+	return 0;
+}
+
+FIXTURE(conntrack_dump_flush)
+{
+	struct mnl_socket *sock;
+};
+
+FIXTURE_SETUP(conntrack_dump_flush)
+{
+	struct in6_addr src, dst;
+	int ret;
+
+	self->sock = mnl_socket_open(NETLINK_NETFILTER);
+	if (!self->sock) {
+		perror("mnl_socket_open");
+		SKIP(return, "cannot open netlink_netfilter socket");
+	}
+
+	ret = mnl_socket_bind(self->sock, 0, MNL_SOCKET_AUTOPID);
+	EXPECT_EQ(ret, 0);
+
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID);
+	if (ret < 0 && errno == EPERM)
+		SKIP(return, "Needs to be run as root");
+	else if (ret < 0 && errno == EOPNOTSUPP)
+		SKIP(return, "Kernel does not seem to support conntrack zones");
+
+	ret = conntrack_data_generate_v4(self->sock, 0xf0f0f0f0, 0xf1f1f1f1,
+					 TEST_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+	ret = conntrack_data_generate_v4(self->sock, 0xf2f2f2f2, 0xf3f3f3f3,
+					 TEST_ZONE_ID + 1);
+	EXPECT_EQ(ret, 0);
+	ret = conntrack_data_generate_v4(self->sock, 0xf4f4f4f4, 0xf5f5f5f5,
+					 TEST_ZONE_ID + 2);
+	EXPECT_EQ(ret, 0);
+	ret = conntrack_data_generate_v4(self->sock, 0xf6f6f6f6, 0xf7f7f7f7,
+					 NF_CT_DEFAULT_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+
+	src = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x01000000
+		}
+	}};
+	dst = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x02000000
+		}
+	}};
+	ret = conntrack_data_generate_v6(self->sock, src, dst,
+					 TEST_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+	src = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x03000000
+		}
+	}};
+	dst = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x04000000
+		}
+	}};
+	ret = conntrack_data_generate_v6(self->sock, src, dst,
+					 TEST_ZONE_ID + 1);
+	EXPECT_EQ(ret, 0);
+	src = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x05000000
+		}
+	}};
+	dst = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x06000000
+		}
+	}};
+	ret = conntrack_data_generate_v6(self->sock, src, dst,
+					 TEST_ZONE_ID + 2);
+	EXPECT_EQ(ret, 0);
+
+	src = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x07000000
+		}
+	}};
+	dst = (struct in6_addr) {{
+		.__u6_addr32 = {
+			0xb80d0120,
+			0x00000000,
+			0x00000000,
+			0x08000000
+		}
+	}};
+	ret = conntrack_data_generate_v6(self->sock, src, dst,
+					 NF_CT_DEFAULT_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID);
+	EXPECT_GE(ret, 2);
+	if (ret > 2)
+		SKIP(return, "kernel does not support filtering by zone");
+}
+
+FIXTURE_TEARDOWN(conntrack_dump_flush)
+{
+}
+
+TEST_F(conntrack_dump_flush, test_dump_by_zone)
+{
+	int ret;
+
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID);
+	EXPECT_EQ(ret, 2);
+}
+
+TEST_F(conntrack_dump_flush, test_flush_by_zone)
+{
+	int ret;
+
+	ret = conntrack_flush_zone(self->sock, TEST_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID + 1);
+	EXPECT_EQ(ret, 2);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID + 2);
+	EXPECT_EQ(ret, 2);
+	ret = conntracK_count_zone(self->sock, NF_CT_DEFAULT_ZONE_ID);
+	EXPECT_EQ(ret, 2);
+}
+
+TEST_F(conntrack_dump_flush, test_flush_by_zone_default)
+{
+	int ret;
+
+	ret = conntrack_flush_zone(self->sock, NF_CT_DEFAULT_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID);
+	EXPECT_EQ(ret, 2);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID + 1);
+	EXPECT_EQ(ret, 2);
+	ret = conntracK_count_zone(self->sock, TEST_ZONE_ID + 2);
+	EXPECT_EQ(ret, 2);
+	ret = conntracK_count_zone(self->sock, NF_CT_DEFAULT_ZONE_ID);
+	EXPECT_EQ(ret, 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/netfilter/conntrack_dump_flush.sh b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.sh
new file mode 100755
index 000000000000..8b0935385849
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_dump_flush.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+
+exec unshare -n ./conntrack_dump_flush
diff --git a/tools/testing/selftests/net/netfilter/conntrack_icmp_related.sh b/tools/testing/selftests/net/netfilter/conntrack_icmp_related.sh
new file mode 100755
index 000000000000..c63d840ead61
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_icmp_related.sh
@@ -0,0 +1,278 @@
+#!/bin/bash
+#
+# check that ICMP df-needed/pkttoobig icmp are set are set as related
+# state
+#
+# Setup is:
+#
+# nsclient1 -> nsrouter1 -> nsrouter2 -> nsclient2
+# MTU 1500, except for nsrouter2 <-> nsclient2 link (1280).
+# ping nsclient2 from nsclient1, checking that conntrack did set RELATED
+# 'fragmentation needed' icmp packet.
+#
+# In addition, nsrouter1 will perform IP masquerading, i.e. also
+# check the icmp errors are propagated to the correct host as per
+# nat of "established" icmp-echo "connection".
+
+source lib.sh
+
+if ! nft --version > /dev/null 2>&1;then
+	echo "SKIP: Could not run test without nft tool"
+	exit $ksft_skip
+fi
+
+cleanup() {
+	cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+setup_ns nsclient1 nsclient2 nsrouter1 nsrouter2
+
+ret=0
+
+add_addr()
+{
+	ns=$1
+	dev=$2
+	i=$3
+
+	ip -net "$ns" link set "$dev" up
+	ip -net "$ns" addr add "192.168.$i.2/24" dev "$dev"
+	ip -net "$ns" addr add "dead:$i::2/64" dev "$dev" nodad
+}
+
+check_counter()
+{
+	ns=$1
+	name=$2
+	expect=$3
+	local lret=0
+
+	if ! ip netns exec "$ns" nft list counter inet filter "$name" | grep -q "$expect"; then
+		echo "ERROR: counter $name in $ns has unexpected value (expected $expect)" 1>&2
+		ip netns exec "$ns" nft list counter inet filter "$name" 1>&2
+		lret=1
+	fi
+
+	return $lret
+}
+
+check_unknown()
+{
+	expect="packets 0 bytes 0"
+	for n in ${nsclient1} ${nsclient2} ${nsrouter1} ${nsrouter2}; do
+		if ! check_counter "$n" "unknown" "$expect"; then
+			return 1
+		fi
+	done
+
+	return 0
+}
+
+DEV=veth0
+ip link add "$DEV" netns "$nsclient1" type veth peer name eth1 netns "$nsrouter1"
+ip link add "$DEV" netns "$nsclient2" type veth peer name eth1 netns "$nsrouter2"
+ip link add "$DEV" netns "$nsrouter1" type veth peer name eth2 netns "$nsrouter2"
+
+add_addr "$nsclient1" $DEV 1
+add_addr "$nsclient2" $DEV 2
+
+ip -net "$nsrouter1" link set eth1 up
+ip -net "$nsrouter1" link set $DEV up
+
+ip -net "$nsrouter2" link set eth1 mtu 1280 up
+ip -net "$nsrouter2" link set eth2 up
+
+ip -net "$nsclient1" route add default via 192.168.1.1
+ip -net "$nsclient1" -6 route add default via dead:1::1
+
+ip -net "$nsclient2" route add default via 192.168.2.1
+ip -net "$nsclient2" route add default via dead:2::1
+ip -net "$nsclient2" link set veth0 mtu 1280
+
+ip -net "$nsrouter1" addr add 192.168.1.1/24 dev eth1
+ip -net "$nsrouter1" addr add 192.168.3.1/24 dev veth0
+ip -net "$nsrouter1" addr add dead:1::1/64 dev eth1 nodad
+ip -net "$nsrouter1" addr add dead:3::1/64 dev veth0 nodad
+ip -net "$nsrouter1" route add default via 192.168.3.10
+ip -net "$nsrouter1" -6 route add default via dead:3::10
+
+ip -net "$nsrouter2" addr add 192.168.2.1/24 dev eth1
+ip -net "$nsrouter2" addr add 192.168.3.10/24 dev eth2
+ip -net "$nsrouter2" addr add dead:2::1/64  dev eth1 nodad
+ip -net "$nsrouter2" addr add dead:3::10/64 dev eth2 nodad
+ip -net "$nsrouter2" route add default via 192.168.3.1
+ip -net "$nsrouter2" route add default via dead:3::1
+
+for i in 4 6; do
+	ip netns exec "$nsrouter1" sysctl -q net.ipv$i.conf.all.forwarding=1
+	ip netns exec "$nsrouter2" sysctl -q net.ipv$i.conf.all.forwarding=1
+done
+
+for netns in "$nsrouter1" "$nsrouter2"; do
+ip netns exec "$netns" nft -f - <<EOF
+table inet filter {
+	counter unknown { }
+	counter related { }
+	chain forward {
+		type filter hook forward priority 0; policy accept;
+		meta l4proto icmpv6 icmpv6 type "packet-too-big" ct state "related" counter name "related" accept
+		meta l4proto icmp icmp type "destination-unreachable" ct state "related" counter name "related" accept
+		meta l4proto { icmp, icmpv6 } ct state new,established accept
+		counter name "unknown" drop
+	}
+}
+EOF
+done
+
+ip netns exec "$nsclient1" nft -f - <<EOF
+table inet filter {
+	counter unknown { }
+	counter related { }
+	counter redir4 { }
+	counter redir6 { }
+	chain input {
+		type filter hook input priority 0; policy accept;
+
+		icmp type "redirect" ct state "related" counter name "redir4" accept
+		icmpv6 type "nd-redirect" ct state "related" counter name "redir6" accept
+
+		meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+		meta l4proto { icmp, icmpv6 } ct state "related" counter name "related" accept
+
+		counter name "unknown" drop
+	}
+}
+EOF
+
+ip netns exec "$nsclient2" nft -f - <<EOF
+table inet filter {
+	counter unknown { }
+	counter new { }
+	counter established { }
+
+	chain input {
+		type filter hook input priority 0; policy accept;
+		meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+
+		meta l4proto { icmp, icmpv6 } ct state "new" counter name "new" accept
+		meta l4proto { icmp, icmpv6 } ct state "established" counter name "established" accept
+		counter name "unknown" drop
+	}
+	chain output {
+		type filter hook output priority 0; policy accept;
+		meta l4proto { icmp, icmpv6 } ct state established,untracked accept
+
+		meta l4proto { icmp, icmpv6 } ct state "new" counter name "new"
+		meta l4proto { icmp, icmpv6 } ct state "established" counter name "established"
+		counter name "unknown" drop
+	}
+}
+EOF
+
+# make sure NAT core rewrites adress of icmp error if nat is used according to
+# conntrack nat information (icmp error will be directed at nsrouter1 address,
+# but it needs to be routed to nsclient1 address).
+ip netns exec "$nsrouter1" nft -f - <<EOF
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		ip protocol icmp oifname "veth0" counter masquerade
+	}
+}
+table ip6 nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		ip6 nexthdr icmpv6 oifname "veth0" counter masquerade
+	}
+}
+EOF
+
+if ! ip netns exec "$nsclient1" ping -c 1 -s 1000 -q -M "do" 192.168.2.2 >/dev/null; then
+	echo "ERROR: netns ip routing/connectivity broken" 1>&2
+	exit 1
+fi
+if ! ip netns exec "$nsclient1" ping -c 1 -s 1000 -q dead:2::2 >/dev/null; then
+	echo "ERROR: netns ipv6 routing/connectivity broken" 1>&2
+	exit 1
+fi
+
+if ! check_unknown; then
+	ret=1
+fi
+
+expect="packets 0 bytes 0"
+for netns in "$nsrouter1" "$nsrouter2" "$nsclient1";do
+	if ! check_counter "$netns" "related" "$expect"; then
+		ret=1
+	fi
+done
+
+expect="packets 2 bytes 2076"
+if ! check_counter "$nsclient2" "new" "$expect"; then
+	ret=1
+fi
+
+if ip netns exec "$nsclient1" ping -W 0.5 -q -c 1 -s 1300 -M "do" 192.168.2.2 > /dev/null; then
+	echo "ERROR: ping should have failed with PMTU too big error" 1>&2
+	ret=1
+fi
+
+# nsrouter2 should have generated the icmp error, so
+# related counter should be 0 (its in forward).
+expect="packets 0 bytes 0"
+if ! check_counter "$nsrouter2" "related" "$expect"; then
+	ret=1
+fi
+
+# but nsrouter1 should have seen it, same for nsclient1.
+expect="packets 1 bytes 576"
+for netns in ${nsrouter1} ${nsclient1};do
+	if ! check_counter "$netns" "related" "$expect"; then
+		ret=1
+	fi
+done
+
+if ip netns exec "${nsclient1}" ping6 -W 0.5 -c 1 -s 1300 dead:2::2 > /dev/null; then
+	echo "ERROR: ping6 should have failed with PMTU too big error" 1>&2
+	ret=1
+fi
+
+expect="packets 2 bytes 1856"
+for netns in "${nsrouter1}" "${nsclient1}";do
+	if ! check_counter "$netns" "related" "$expect"; then
+		ret=1
+	fi
+done
+
+if [ $ret -eq 0 ];then
+	echo "PASS: icmp mtu error had RELATED state"
+else
+	echo "ERROR: icmp error RELATED state test has failed"
+fi
+
+# add 'bad' route,  expect icmp REDIRECT to be generated
+ip netns exec "${nsclient1}" ip route add 192.168.1.42 via 192.168.1.1
+ip netns exec "${nsclient1}" ip route add dead:1::42 via dead:1::1
+
+ip netns exec "$nsclient1" ping -W 1 -q -i 0.5 -c 2 192.168.1.42 > /dev/null
+
+expect="packets 1 bytes 112"
+if ! check_counter "$nsclient1" "redir4" "$expect"; then
+	ret=1
+fi
+
+ip netns exec "$nsclient1" ping -W 1 -c 1 dead:1::42 > /dev/null
+expect="packets 1 bytes 192"
+if ! check_counter "$nsclient1" "redir6" "$expect"; then
+	ret=1
+fi
+
+if [ $ret -eq 0 ];then
+	echo "PASS: icmp redirects had RELATED state"
+else
+	echo "ERROR: icmp redirect RELATED state test has failed"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh b/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
new file mode 100755
index 000000000000..9832a5d0198a
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_ipip_mtu.sh
@@ -0,0 +1,191 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+# Conntrack needs to reassemble fragments in order to have complete
+# packets for rule matching.  Reassembly can lead to packet loss.
+
+# Consider the following setup:
+#            +--------+       +---------+       +--------+
+#            |Router A|-------|Wanrouter|-------|Router B|
+#            |        |.IPIP..|         |..IPIP.|        |
+#            +--------+       +---------+       +--------+
+#           /                  mtu 1400                   \
+#          /                                               \
+#+--------+                                                 +--------+
+#|Client A|                                                 |Client B|
+#|        |                                                 |        |
+#+--------+                                                 +--------+
+
+# Router A and Router B use IPIP tunnel interfaces to tunnel traffic
+# between Client A and Client B over WAN. Wanrouter has MTU 1400 set
+# on its interfaces.
+
+rx=$(mktemp)
+
+checktool "iptables --version" "run test without iptables"
+checktool "socat -h" "run test without socat"
+
+setup_ns r_a r_b r_w c_a c_b
+
+cleanup() {
+	cleanup_all_ns
+	rm -f "$rx"
+}
+
+trap cleanup EXIT
+
+listener_ready()
+{
+	ns="$1"
+	port="$2"
+	ss -N "$ns" -lnu -o "sport = :$port" | grep -q "$port"
+}
+
+test_path() {
+	msg="$1"
+
+	ip netns exec "$c_b" socat -t 3 - udp4-listen:5000,reuseaddr > "$rx" < /dev/null &
+
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$c_b" 5000
+
+	for i in 1 2 3; do
+		head -c1400 /dev/zero | tr "\000" "a" | \
+			ip netns exec "$c_a" socat -t 1 -u STDIN UDP:192.168.20.2:5000
+	done
+
+	wait
+
+	bytes=$(wc -c < "$rx")
+
+	if [ "$bytes" -eq 1400 ];then
+		echo "OK: PMTU $msg connection tracking"
+	else
+		echo "FAIL: PMTU $msg connection tracking: got $bytes, expected 1400"
+		exit 1
+	fi
+}
+
+# Detailed setup for Router A
+# ---------------------------
+# Interfaces:
+# eth0: 10.2.2.1/24
+# eth1: 192.168.10.1/24
+# ipip0: No IP address, local 10.2.2.1 remote 10.4.4.1
+# Routes:
+# 192.168.20.0/24 dev ipip0    (192.168.20.0/24 is subnet of Client B)
+# 10.4.4.1 via 10.2.2.254      (Router B via Wanrouter)
+# No iptables rules at all.
+
+ip link add veth0 netns "$r_a" type veth peer name veth0 netns "$r_w"
+ip link add veth1 netns "$r_a" type veth peer name veth0 netns "$c_a"
+
+l_addr="10.2.2.1"
+r_addr="10.4.4.1"
+ip netns exec "$r_a" ip link add ipip0 type ipip local "$l_addr" remote "$r_addr" mode ipip || exit $ksft_skip
+
+for dev in lo veth0 veth1 ipip0; do
+    ip -net "$r_a" link set "$dev" up
+done
+
+ip -net "$r_a" addr add 10.2.2.1/24 dev veth0
+ip -net "$r_a" addr add 192.168.10.1/24 dev veth1
+
+ip -net "$r_a" route add 192.168.20.0/24 dev ipip0
+ip -net "$r_a" route add 10.4.4.0/24 via 10.2.2.254
+
+ip netns exec "$r_a" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
+
+# Detailed setup for Router B
+# ---------------------------
+# Interfaces:
+# eth0: 10.4.4.1/24
+# eth1: 192.168.20.1/24
+# ipip0: No IP address, local 10.4.4.1 remote 10.2.2.1
+# Routes:
+# 192.168.10.0/24 dev ipip0    (192.168.10.0/24 is subnet of Client A)
+# 10.2.2.1 via 10.4.4.254      (Router A via Wanrouter)
+# No iptables rules at all.
+
+ip link add veth0 netns "$r_b" type veth peer name veth1 netns "$r_w"
+ip link add veth1 netns "$r_b" type veth peer name veth0 netns "$c_b"
+
+l_addr="10.4.4.1"
+r_addr="10.2.2.1"
+
+ip netns exec "$r_b" ip link add ipip0 type ipip local "${l_addr}" remote "${r_addr}" mode ipip || exit $ksft_skip
+
+for dev in veth0 veth1 ipip0; do
+	ip -net "$r_b" link set $dev up
+done
+
+ip -net "$r_b" addr add 10.4.4.1/24 dev veth0
+ip -net "$r_b" addr add 192.168.20.1/24 dev veth1
+
+ip -net "$r_b" route add 192.168.10.0/24 dev ipip0
+ip -net "$r_b" route add 10.2.2.0/24 via 10.4.4.254
+ip netns exec "$r_b" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
+
+# Client A
+ip -net "$c_a" addr add 192.168.10.2/24 dev veth0
+ip -net "$c_a" link set dev veth0 up
+ip -net "$c_a" route add default via 192.168.10.1
+
+# Client A
+ip -net "$c_b" addr add 192.168.20.2/24 dev veth0
+ip -net "$c_b" link set dev veth0 up
+ip -net "$c_b" route add default via 192.168.20.1
+
+# Wan
+ip -net "$r_w" addr add 10.2.2.254/24 dev veth0
+ip -net "$r_w" addr add 10.4.4.254/24 dev veth1
+
+ip -net "$r_w" link set dev veth0 up mtu 1400
+ip -net "$r_w" link set dev veth1 up mtu 1400
+
+ip -net "$r_a" link set dev veth0 mtu 1400
+ip -net "$r_b" link set dev veth0 mtu 1400
+
+ip netns exec "$r_w" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
+
+# Path MTU discovery
+# ------------------
+# Running tracepath from Client A to Client B shows PMTU discovery is working
+# as expected:
+#
+# clienta:~# tracepath 192.168.20.2
+# 1?: [LOCALHOST]                      pmtu 1500
+# 1:  192.168.10.1                                          0.867ms
+# 1:  192.168.10.1                                          0.302ms
+# 2:  192.168.10.1                                          0.312ms pmtu 1480
+# 2:  no reply
+# 3:  192.168.10.1                                          0.510ms pmtu 1380
+# 3:  192.168.20.2                                          2.320ms reached
+# Resume: pmtu 1380 hops 3 back 3
+
+# ip netns exec ${c_a} traceroute --mtu 192.168.20.2
+
+# Router A has learned PMTU (1400) to Router B from Wanrouter.
+# Client A has learned PMTU (1400 - IPIP overhead = 1380) to Client B
+# from Router A.
+
+#Send large UDP packet
+#---------------------
+#Now we send a 1400 bytes UDP packet from Client A to Client B:
+
+# clienta:~# head -c1400 /dev/zero | tr "\000" "a" | socat -u STDIN UDP:192.168.20.2:5000
+test_path "without"
+
+# The IPv4 stack on Client A already knows the PMTU to Client B, so the
+# UDP packet is sent as two fragments (1380 + 20). Router A forwards the
+# fragments between eth1 and ipip0. The fragments fit into the tunnel and
+# reach their destination.
+
+#When sending the large UDP packet again, Router A now reassembles the
+#fragments before routing the packet over ipip0. The resulting IPIP
+#packet is too big (1400) for the tunnel PMTU (1380) to Router B, it is
+#dropped on Router A before sending.
+
+ip netns exec "$r_a" iptables -A FORWARD -m conntrack --ctstate NEW
+test_path "with"
diff --git a/tools/testing/selftests/net/netfilter/conntrack_resize.sh b/tools/testing/selftests/net/netfilter/conntrack_resize.sh
new file mode 100755
index 000000000000..615fe3c6f405
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_resize.sh
@@ -0,0 +1,515 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+checktool "conntrack --version" "run test without conntrack"
+checktool "nft --version" "run test without nft tool"
+
+init_net_max=0
+ct_buckets=0
+tmpfile=""
+tmpfile_proc=""
+tmpfile_uniq=""
+ret=0
+have_socat=0
+
+socat -h > /dev/null && have_socat=1
+
+insert_count=2000
+[ "$KSFT_MACHINE_SLOW" = "yes" ] && insert_count=400
+
+modprobe -q nf_conntrack
+if ! sysctl -q net.netfilter.nf_conntrack_max >/dev/null;then
+	echo "SKIP: conntrack sysctls not available"
+	exit $KSFT_SKIP
+fi
+
+init_net_max=$(sysctl -n net.netfilter.nf_conntrack_max) || exit 1
+ct_buckets=$(sysctl -n net.netfilter.nf_conntrack_buckets) || exit 1
+
+cleanup() {
+	cleanup_all_ns
+
+	rm -f "$tmpfile" "$tmpfile_proc" "$tmpfile_uniq"
+
+	# restore original sysctl setting
+	sysctl -q net.netfilter.nf_conntrack_max=$init_net_max
+	sysctl -q net.netfilter.nf_conntrack_buckets=$ct_buckets
+}
+trap cleanup EXIT
+
+check_max_alias()
+{
+	local expected="$1"
+	# old name, expected to alias to the first, i.e. changing one
+	# changes the other as well.
+	local lv=$(sysctl -n net.nf_conntrack_max)
+
+	if [ $expected -ne "$lv" ];then
+		echo "nf_conntrack_max sysctls should have identical values"
+		exit 1
+	fi
+}
+
+insert_ctnetlink() {
+	local ns="$1"
+	local count="$2"
+	local i=0
+	local bulk=16
+
+	while [ $i -lt $count ] ;do
+		ip netns exec "$ns" bash -c "for i in \$(seq 1 $bulk); do \
+			if ! conntrack -I -s \$((\$RANDOM%256)).\$((\$RANDOM%256)).\$((\$RANDOM%256)).\$((\$RANDOM%255+1)) \
+					  -d \$((\$RANDOM%256)).\$((\$RANDOM%256)).\$((\$RANDOM%256)).\$((\$RANDOM%255+1)) \
+					  --protonum 17 --timeout 3600 --status ASSURED,SEEN_REPLY --sport \$RANDOM --dport 53; then \
+					  return;\
+			fi & \
+		done ; wait" 2>/dev/null
+
+		i=$((i+bulk))
+	done
+}
+
+check_ctcount() {
+	local ns="$1"
+	local count="$2"
+	local msg="$3"
+
+	local now=$(ip netns exec "$ns" conntrack -C)
+
+	if [ $now -ne "$count" ] ;then
+		echo "expected $count entries in $ns, not $now: $msg"
+		exit 1
+	fi
+
+	echo "PASS: got $count connections: $msg"
+}
+
+ctresize() {
+	local duration="$1"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+	while [ $now -lt $end ]; do
+		sysctl -q net.netfilter.nf_conntrack_buckets=$RANDOM
+		now=$(date +%s)
+	done
+}
+
+do_rsleep() {
+	local limit="$1"
+	local r=$RANDOM
+
+	r=$((r%limit))
+	sleep "$r"
+}
+
+ct_flush_once() {
+	local ns="$1"
+
+	ip netns exec "$ns" conntrack -F 2>/dev/null
+}
+
+ctflush() {
+	local ns="$1"
+	local duration="$2"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+	do_rsleep "$duration"
+
+        while [ $now -lt $end ]; do
+		ct_flush_once "$ns"
+		do_rsleep "$duration"
+		now=$(date +%s)
+        done
+}
+
+ct_pingflood()
+{
+	local ns="$1"
+	local duration="$2"
+	local msg="$3"
+	local now=$(date +%s)
+	local end=$((now + duration))
+	local j=0
+	local k=0
+
+        while [ $now -lt $end ]; do
+		j=$((j%256))
+		k=$((k%256))
+
+		ip netns exec "$ns" bash -c \
+			"j=$j k=$k; for i in \$(seq 1 254); do ping -q -c 1 127.\$k.\$j.\$i & done; wait" >/dev/null 2>&1
+
+		j=$((j+1))
+
+		if [ $j -eq 256 ];then
+			k=$((k+1))
+		fi
+
+		now=$(date +%s)
+	done
+
+	wait
+}
+
+ct_udpflood()
+{
+	local ns="$1"
+	local duration="$2"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+	[ $have_socat -ne "1" ] && return
+
+        while [ $now -lt $end ]; do
+ip netns exec "$ns" bash<<"EOF"
+	for i in $(seq 1 100);do
+		dport=$(((RANDOM%65536)+1))
+
+		echo bar | socat -u STDIN UDP:"127.0.0.1:$dport" &
+	done > /dev/null 2>&1
+	wait
+EOF
+		now=$(date +%s)
+	done
+}
+
+ct_udpclash()
+{
+	local ns="$1"
+	local duration="$2"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+	[ -x udpclash ] || return
+
+        while [ $now -lt $end ]; do
+		ip netns exec "$ns" timeout 30 ./udpclash 127.0.0.1 $((RANDOM%65536)) > /dev/null 2>&1
+
+		now=$(date +%s)
+	done
+}
+
+# dump to /dev/null.  We don't want dumps to cause infinite loops
+# or use-after-free even when conntrack table is altered while dumps
+# are in progress.
+ct_nulldump()
+{
+	local ns="$1"
+
+	ip netns exec "$ns" conntrack -L > /dev/null 2>&1 &
+
+	# Don't require /proc support in conntrack
+	if [ -r /proc/self/net/nf_conntrack ] ; then
+		ip netns exec "$ns" bash -c "wc -l < /proc/self/net/nf_conntrack" > /dev/null &
+	fi
+
+	wait
+}
+
+ct_nulldump_loop()
+{
+	local ns="$1"
+	local duration="$2"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+        while [ $now -lt $end ]; do
+		ct_nulldump "$ns"
+		sleep $((RANDOM%2))
+		now=$(date +%s)
+	done
+}
+
+change_timeouts()
+{
+	local ns="$1"
+	local r1=$((RANDOM%2))
+	local r2=$((RANDOM%2))
+
+	[ "$r1" -eq 1 ] && ip netns exec "$ns" sysctl -q net.netfilter.nf_conntrack_icmp_timeout=$((RANDOM%5))
+	[ "$r2" -eq 1 ] && ip netns exec "$ns" sysctl -q net.netfilter.nf_conntrack_udp_timeout=$((RANDOM%5))
+}
+
+ct_change_timeouts_loop()
+{
+	local ns="$1"
+	local duration="$2"
+	local now=$(date +%s)
+	local end=$((now + duration))
+
+        while [ $now -lt $end ]; do
+		change_timeouts "$ns"
+		sleep $((RANDOM%2))
+		now=$(date +%s)
+	done
+
+	# restore defaults
+	ip netns exec "$ns" sysctl -q net.netfilter.nf_conntrack_icmp_timeout=30
+	ip netns exec "$ns" sysctl -q net.netfilter.nf_conntrack_udp_timeout=30
+}
+
+check_taint()
+{
+	local tainted_then="$1"
+	local msg="$2"
+
+	local tainted_now=0
+
+	if [ "$tainted_then" -ne 0 ];then
+		return
+	fi
+
+	read tainted_now < /proc/sys/kernel/tainted
+
+	if [ "$tainted_now" -eq 0 ];then
+		echo "PASS: $msg"
+	else
+		echo "TAINT: $msg"
+		dmesg
+		exit 1
+	fi
+}
+
+insert_flood()
+{
+	local n="$1"
+	local timeout="$2"
+	local r=0
+
+	r=$((RANDOM%$insert_count))
+
+	ct_pingflood "$n" "$timeout" "floodresize" &
+	ct_udpflood "$n" "$timeout" &
+	ct_udpclash "$n" "$timeout" &
+
+	insert_ctnetlink "$n" "$r" &
+	ctflush "$n" "$timeout" &
+	ct_nulldump_loop "$n" "$timeout" &
+	ct_change_timeouts_loop "$n" "$timeout" &
+
+	wait
+}
+
+test_floodresize_all()
+{
+	local timeout=20
+	local n=""
+	local tainted_then=""
+
+	read tainted_then < /proc/sys/kernel/tainted
+
+	for n in "$nsclient1" "$nsclient2";do
+		insert_flood "$n" "$timeout" &
+	done
+
+	# resize table constantly while flood/insert/dump/flushs
+	# are happening in parallel.
+	ctresize "$timeout"
+
+	# wait for subshells to complete, everything is limited
+	# by $timeout.
+	wait
+
+	check_taint "$tainted_then" "resize+flood"
+}
+
+check_dump()
+{
+	local ns="$1"
+	local protoname="$2"
+	local c=0
+	local proto=0
+	local proc=0
+	local unique=""
+	local lret=0
+
+	# NOTE: assumes timeouts are large enough to not have
+	# expirations in all following tests.
+	l=$(ip netns exec "$ns" conntrack -L 2>/dev/null | sort | tee "$tmpfile" | wc -l)
+	c=$(ip netns exec "$ns" conntrack -C)
+
+	if [ "$c" -eq 0 ]; then
+		echo "FAIL: conntrack count for $ns is 0"
+		lret=1
+	fi
+
+	if [ "$c" -ne "$l" ]; then
+		echo "FAIL: conntrack count inconsistency for $ns -L: $c != $l"
+		lret=1
+	fi
+
+	# check the dump we retrieved is free of duplicated entries.
+	unique=$(uniq "$tmpfile" | tee "$tmpfile_uniq" | wc -l)
+	if [ "$l" -ne "$unique" ]; then
+		echo "FAIL: listing contained redundant entries for $ns: $l != $unique"
+		diff -u "$tmpfile" "$tmpfile_uniq"
+		lret=1
+	fi
+
+	# we either inserted icmp or only udp, hence, --proto should return same entry count as without filter.
+	proto=$(ip netns exec "$ns" conntrack -L --proto $protoname 2>/dev/null | sort | uniq | tee "$tmpfile_uniq" | wc -l)
+	if [ "$l" -ne "$proto" ]; then
+		echo "FAIL: dump inconsistency for $ns -L --proto $protoname: $l != $proto"
+		diff -u "$tmpfile" "$tmpfile_uniq"
+		lret=1
+	fi
+
+	if [ -r /proc/self/net/nf_conntrack ] ; then
+		proc=$(ip netns exec "$ns" bash -c "sort < /proc/self/net/nf_conntrack | tee \"$tmpfile_proc\" | wc -l")
+
+		if [ "$l" -ne "$proc" ]; then
+			echo "FAIL: proc inconsistency for $ns: $l != $proc"
+			lret=1
+		fi
+
+		proc=$(uniq "$tmpfile_proc" | tee "$tmpfile_uniq" | wc -l)
+		if [ "$l" -ne "$proc" ]; then
+			echo "FAIL: proc inconsistency after uniq filter for $ns: $l != $proc"
+			diff -u "$tmpfile_proc" "$tmpfile_uniq"
+			lret=1
+		fi
+	fi
+
+	if [ $lret -eq 0 ];then
+		echo "PASS: dump in netns $ns had same entry count (-C $c, -L $l, -p $proto, /proc $proc)"
+	else
+		echo "FAIL: dump in netns $ns had different entry count (-C $c, -L $l, -p $proto, /proc $proc)"
+		ret=1
+	fi
+}
+
+test_dump_all()
+{
+	local timeout=3
+	local tainted_then=""
+
+	read tainted_then < /proc/sys/kernel/tainted
+
+	ct_flush_once "$nsclient1"
+	ct_flush_once "$nsclient2"
+
+	ip netns exec "$nsclient1" sysctl -q net.netfilter.nf_conntrack_icmp_timeout=3600
+
+	ct_pingflood "$nsclient1" $timeout "dumpall" &
+	insert_ctnetlink "$nsclient2" $insert_count
+
+	wait
+
+	check_dump "$nsclient1" "icmp"
+	check_dump "$nsclient2" "udp"
+
+	check_taint "$tainted_then" "test parallel conntrack dumps"
+}
+
+check_sysctl_immutable()
+{
+	local ns="$1"
+	local name="$2"
+	local failhard="$3"
+	local o=0
+	local n=0
+
+	o=$(ip netns exec "$ns" sysctl -n "$name" 2>/dev/null)
+	n=$((o+1))
+
+	# return value isn't reliable, need to read it back
+	ip netns exec "$ns" sysctl -q "$name"=$n 2>/dev/null >/dev/null
+
+	n=$(ip netns exec "$ns" sysctl -n "$name" 2>/dev/null)
+
+	[ -z "$n" ] && return 1
+
+	if [ $o -ne $n ]; then
+		if [ $failhard -gt 0 ] ;then
+			echo "FAIL: net.$name should not be changeable from namespace (now $n)"
+			ret=1
+		fi
+		return 0
+	fi
+
+	return 1
+}
+
+test_conntrack_max_limit()
+{
+	sysctl -q net.netfilter.nf_conntrack_max=100
+	insert_ctnetlink "$nsclient1" 101
+
+	# check netns is clamped by init_net, i.e., either netns follows
+	# init_net value, or a higher pernet limit (compared to init_net) is ignored.
+	check_ctcount "$nsclient1" 100 "netns conntrack_max is init_net bound"
+
+	sysctl -q net.netfilter.nf_conntrack_max=$init_net_max
+}
+
+test_conntrack_disable()
+{
+	local timeout=2
+
+	# disable conntrack pickups
+	ip netns exec "$nsclient1" nft flush table ip test_ct
+
+	ct_flush_once "$nsclient1"
+	ct_flush_once "$nsclient2"
+
+	ct_pingflood "$nsclient1" "$timeout" "conntrack disable"
+	ip netns exec "$nsclient2" ping -q -c 1 127.0.0.1 >/dev/null 2>&1
+
+	# Disabled, should not have picked up any connection.
+	check_ctcount "$nsclient1" 0 "conntrack disabled"
+
+	# This one is still active, expect 1 connection.
+	check_ctcount "$nsclient2" 1 "conntrack enabled"
+}
+
+init_net_max=$(sysctl -n net.netfilter.nf_conntrack_max)
+
+check_max_alias $init_net_max
+
+sysctl -q net.netfilter.nf_conntrack_max="262000"
+check_max_alias 262000
+
+setup_ns nsclient1 nsclient2
+
+# check this only works from init_net
+for n in netfilter.nf_conntrack_buckets netfilter.nf_conntrack_expect_max net.nf_conntrack_max;do
+	check_sysctl_immutable "$nsclient1" "net.$n" 1
+done
+
+# won't work on older kernels. If it works, check that the netns obeys the limit
+if check_sysctl_immutable "$nsclient1" net.netfilter.nf_conntrack_max 0;then
+	# subtest: if pernet is changeable, check that reducing it in pernet
+	# limits the pernet entries.  Inverse, pernet clamped by a lower init_net
+	# setting, is already checked by "test_conntrack_max_limit" test.
+
+	ip netns exec "$nsclient1" sysctl -q net.netfilter.nf_conntrack_max=1
+	insert_ctnetlink "$nsclient1" 2
+	check_ctcount "$nsclient1" 1 "netns conntrack_max is pernet bound"
+	ip netns exec "$nsclient1" sysctl -q net.netfilter.nf_conntrack_max=$init_net_max
+fi
+
+for n in "$nsclient1" "$nsclient2";do
+# enable conntrack in both namespaces
+ip netns exec "$n" nft -f - <<EOF
+table ip test_ct {
+	chain input {
+		type filter hook input priority 0
+		ct state new counter
+	}
+}
+EOF
+done
+
+tmpfile=$(mktemp)
+tmpfile_proc=$(mktemp)
+tmpfile_uniq=$(mktemp)
+test_conntrack_max_limit
+test_dump_all
+test_floodresize_all
+test_conntrack_disable
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.c b/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.c
new file mode 100644
index 000000000000..507930cee8cb
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Needs something like:
+ *
+ * iptables -t nat -A POSTROUTING -o nomatch -j MASQUERADE
+ *
+ * so NAT engine attaches a NAT null-binding to each connection.
+ *
+ * With unmodified kernels, child or parent will exit with
+ * "Port number changed" error, even though no port translation
+ * was requested.
+ */
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#define LEN 512
+#define PORT 56789
+#define TEST_TIME 5
+
+static void die(const char *e)
+{
+	perror(e);
+	exit(111);
+}
+
+static void die_port(uint16_t got, uint16_t want)
+{
+	fprintf(stderr, "Port number changed, wanted %d got %d\n", want, ntohs(got));
+	exit(1);
+}
+
+static int udp_socket(void)
+{
+	static const struct timeval tv = {
+		.tv_sec = 1,
+	};
+	int fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+	if (fd < 0)
+		die("socket");
+
+	setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+	return fd;
+}
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_in sa1 = {
+		.sin_family = AF_INET,
+	};
+	struct sockaddr_in sa2 = {
+		.sin_family = AF_INET,
+	};
+	int s1, s2, status;
+	time_t end, now;
+	socklen_t plen;
+	char buf[LEN];
+	bool child;
+
+	sa1.sin_port = htons(PORT);
+	sa2.sin_port = htons(PORT + 1);
+
+	s1 = udp_socket();
+	s2 = udp_socket();
+
+	inet_pton(AF_INET, "127.0.0.11", &sa1.sin_addr);
+	inet_pton(AF_INET, "127.0.0.12", &sa2.sin_addr);
+
+	if (bind(s1, (struct sockaddr *)&sa1, sizeof(sa1)) < 0)
+		die("bind 1");
+	if (bind(s2, (struct sockaddr *)&sa2, sizeof(sa2)) < 0)
+		die("bind 2");
+
+	child = fork() == 0;
+
+	now = time(NULL);
+	end = now + TEST_TIME;
+
+	while (now < end) {
+		struct sockaddr_in peer;
+		socklen_t plen = sizeof(peer);
+
+		now = time(NULL);
+
+		if (child) {
+			if (sendto(s1, buf, LEN, 0, (struct sockaddr *)&sa2, sizeof(sa2)) != LEN)
+				continue;
+
+			if (recvfrom(s2, buf, LEN, 0, (struct sockaddr *)&peer, &plen) < 0)
+				die("child recvfrom");
+
+			if (peer.sin_port != htons(PORT))
+				die_port(peer.sin_port, PORT);
+		} else {
+			if (sendto(s2, buf, LEN, 0, (struct sockaddr *)&sa1, sizeof(sa1)) != LEN)
+				continue;
+
+			if (recvfrom(s1, buf, LEN, 0, (struct sockaddr *)&peer, &plen) < 0)
+				die("parent recvfrom");
+
+			if (peer.sin_port != htons((PORT + 1)))
+				die_port(peer.sin_port, PORT + 1);
+		}
+	}
+
+	if (child)
+		return 0;
+
+	wait(&status);
+
+	if (WIFEXITED(status))
+		return WEXITSTATUS(status);
+
+	return 1;
+}
diff --git a/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.sh b/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.sh
new file mode 100755
index 000000000000..a24c896347a8
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_reverse_clash.sh
@@ -0,0 +1,51 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+cleanup()
+{
+	cleanup_all_ns
+}
+
+checktool "nft --version" "run test without nft"
+checktool "conntrack --version" "run test without conntrack"
+
+trap cleanup EXIT
+
+setup_ns ns0
+
+# make loopback connections get nat null bindings assigned
+ip netns exec "$ns0" nft -f - <<EOF
+table ip nat {
+        chain POSTROUTING {
+                type nat hook postrouting priority srcnat; policy accept;
+                oifname "nomatch" counter packets 0 bytes 0 masquerade
+        }
+}
+EOF
+
+do_flush()
+{
+	local end
+	local now
+
+	now=$(date +%s)
+	end=$((now + 5))
+
+	while [ $now -lt $end ];do
+		ip netns exec "$ns0" conntrack -F 2>/dev/null
+		now=$(date +%s)
+	done
+}
+
+do_flush &
+
+if ip netns exec "$ns0" ./conntrack_reverse_clash; then
+	echo "PASS: No SNAT performed for null bindings"
+else
+	echo "ERROR: SNAT performed without any matching snat rule"
+	exit 1
+fi
+
+exit 0
diff --git a/tools/testing/selftests/net/netfilter/conntrack_sctp_collision.sh b/tools/testing/selftests/net/netfilter/conntrack_sctp_collision.sh
new file mode 100755
index 000000000000..d860f7d9744b
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_sctp_collision.sh
@@ -0,0 +1,87 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing For SCTP COLLISION SCENARIO as Below:
+#
+#   14:35:47.655279 IP CLIENT_IP.PORT > SERVER_IP.PORT: sctp (1) [INIT] [init tag: 2017837359]
+#   14:35:48.353250 IP SERVER_IP.PORT > CLIENT_IP.PORT: sctp (1) [INIT] [init tag: 1187206187]
+#   14:35:48.353275 IP CLIENT_IP.PORT > SERVER_IP.PORT: sctp (1) [INIT ACK] [init tag: 2017837359]
+#   14:35:48.353283 IP SERVER_IP.PORT > CLIENT_IP.PORT: sctp (1) [COOKIE ECHO]
+#   14:35:48.353977 IP CLIENT_IP.PORT > SERVER_IP.PORT: sctp (1) [COOKIE ACK]
+#   14:35:48.855335 IP SERVER_IP.PORT > CLIENT_IP.PORT: sctp (1) [INIT ACK] [init tag: 164579970]
+#
+# TOPO: SERVER_NS (link0)<--->(link1) ROUTER_NS (link2)<--->(link3) CLIENT_NS
+
+source lib.sh
+
+CLIENT_IP="198.51.200.1"
+CLIENT_PORT=1234
+
+SERVER_IP="198.51.100.1"
+SERVER_PORT=1234
+
+CLIENT_GW="198.51.200.2"
+SERVER_GW="198.51.100.2"
+
+# setup the topo
+setup() {
+	setup_ns CLIENT_NS SERVER_NS ROUTER_NS
+	ip -n "$SERVER_NS" link add link0 type veth peer name link1 netns "$ROUTER_NS"
+	ip -n "$CLIENT_NS" link add link3 type veth peer name link2 netns "$ROUTER_NS"
+
+	ip -n "$SERVER_NS" link set link0 up
+	ip -n "$SERVER_NS" addr add $SERVER_IP/24 dev link0
+	ip -n "$SERVER_NS" route add $CLIENT_IP dev link0 via $SERVER_GW
+
+	ip -n "$ROUTER_NS" link set link1 up
+	ip -n "$ROUTER_NS" link set link2 up
+	ip -n "$ROUTER_NS" addr add $SERVER_GW/24 dev link1
+	ip -n "$ROUTER_NS" addr add $CLIENT_GW/24 dev link2
+	ip net exec "$ROUTER_NS" sysctl -wq net.ipv4.ip_forward=1
+
+	ip -n "$CLIENT_NS" link set link3 up
+	ip -n "$CLIENT_NS" addr add $CLIENT_IP/24 dev link3
+	ip -n "$CLIENT_NS" route add $SERVER_IP dev link3 via $CLIENT_GW
+
+	# simulate the delay on OVS upcall by setting up a delay for INIT_ACK with
+	# tc on $SERVER_NS side
+	tc -n "$SERVER_NS" qdisc add dev link0 root handle 1: htb r2q 64
+	tc -n "$SERVER_NS" class add dev link0 parent 1: classid 1:1 htb rate 100mbit
+	tc -n "$SERVER_NS" filter add dev link0 parent 1: protocol ip u32 match ip protocol 132 \
+		0xff match u8 2 0xff at 32 flowid 1:1
+	if ! tc -n "$SERVER_NS" qdisc add dev link0 parent 1:1 handle 10: netem delay 1200ms; then
+		echo "SKIP: Cannot add netem qdisc"
+		exit $ksft_skip
+	fi
+
+	# simulate the ctstate check on OVS nf_conntrack
+	ip net exec "$ROUTER_NS" iptables -A FORWARD -m state --state INVALID,UNTRACKED -j DROP
+	ip net exec "$ROUTER_NS" iptables -A INPUT -p sctp -j DROP
+
+	# use a smaller number for assoc's max_retrans to reproduce the issue
+	modprobe -q sctp
+	ip net exec "$CLIENT_NS" sysctl -wq net.sctp.association_max_retrans=3
+}
+
+cleanup() {
+	ip net exec "$CLIENT_NS" pkill sctp_collision >/dev/null 2>&1
+	ip net exec "$SERVER_NS" pkill sctp_collision >/dev/null 2>&1
+	cleanup_all_ns
+}
+
+do_test() {
+	ip net exec "$SERVER_NS" ./sctp_collision server \
+		$SERVER_IP $SERVER_PORT $CLIENT_IP $CLIENT_PORT &
+	ip net exec "$CLIENT_NS" ./sctp_collision client \
+		$CLIENT_IP $CLIENT_PORT $SERVER_IP $SERVER_PORT
+}
+
+# NOTE: one way to work around the issue is set a smaller hb_interval
+# ip net exec $CLIENT_NS sysctl -wq net.sctp.hb_interval=3500
+
+# run the test case
+trap cleanup EXIT
+setup && \
+echo "Test for SCTP Collision in nf_conntrack:" && \
+do_test && echo "PASS!"
+exit $?
diff --git a/tools/testing/selftests/net/netfilter/conntrack_tcp_unreplied.sh b/tools/testing/selftests/net/netfilter/conntrack_tcp_unreplied.sh
new file mode 100755
index 000000000000..121ea93c0178
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_tcp_unreplied.sh
@@ -0,0 +1,164 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check that UNREPLIED tcp conntrack will eventually timeout.
+#
+
+source lib.sh
+
+if ! nft --version > /dev/null 2>&1;then
+	echo "SKIP: Could not run test without nft tool"
+	exit $ksft_skip
+fi
+
+if ! conntrack --version > /dev/null 2>&1;then
+	echo "SKIP: Could not run test without conntrack tool"
+	exit $ksft_skip
+fi
+
+ret=0
+
+cleanup() {
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+}
+
+ipv4() {
+    echo -n 192.168."$1".2
+}
+
+check_counter()
+{
+	ns=$1
+	name=$2
+	expect=$3
+	local lret=0
+
+	if ! ip netns exec "$ns2" nft list counter inet filter "$name" | grep -q "$expect"; then
+		echo "ERROR: counter $name in $ns2 has unexpected value (expected $expect)" 1>&2
+		ip netns exec "$ns2" nft list counter inet filter "$name" 1>&2
+		lret=1
+	fi
+
+	return $lret
+}
+
+trap cleanup EXIT
+
+# Create test namespaces
+setup_ns ns1 ns2
+
+# Connect the namespace to the host using a veth pair
+ip -net "$ns1" link add name veth1 type veth peer name veth2
+ip -net "$ns1" link set netns "$ns2" dev veth2
+
+ip -net "$ns1" link set up dev lo
+ip -net "$ns2" link set up dev lo
+ip -net "$ns1" link set up dev veth1
+ip -net "$ns2" link set up dev veth2
+
+ip -net "$ns2" addr add 10.11.11.2/24 dev veth2
+ip -net "$ns2" route add default via 10.11.11.1
+
+ip netns exec "$ns2" sysctl -q net.ipv4.conf.veth2.forwarding=1
+
+# add a rule inside NS so we enable conntrack
+ip netns exec "$ns1" nft -f - <<EOF
+table inet filter {
+	chain input {
+		type filter hook input priority 0; policy accept;
+		ct state established accept
+	}
+}
+EOF
+
+ip -net "$ns1" addr add 10.11.11.1/24 dev veth1
+ip -net "$ns1" route add 10.99.99.99 via 10.11.11.2
+
+# Check connectivity works
+ip netns exec "$ns1" ping -q -c 2 10.11.11.2 >/dev/null || exit 1
+
+ip netns exec "$ns2" socat -u -4 TCP-LISTEN:8080,reuseaddr STDOUT &
+
+ip netns exec "$ns2" nft -f - <<EOF
+table inet filter {
+	counter connreq { }
+	counter redir { }
+	chain input {
+		type filter hook input priority 0; policy accept;
+		ct state new tcp flags syn ip daddr 10.99.99.99 tcp dport 80 counter name "connreq" accept
+		ct state new ct status dnat tcp dport 8080 counter name "redir" accept
+	}
+}
+EOF
+if [ $? -ne 0 ]; then
+	echo "ERROR: Could not load nft rules"
+	exit 1
+fi
+
+ip netns exec "$ns2" sysctl -q net.netfilter.nf_conntrack_tcp_timeout_syn_sent=10
+
+echo "INFO: connect $ns1 -> $ns2 to the virtual ip"
+ip netns exec "$ns1" bash -c 'for i in $(seq 1 $BUSYWAIT_TIMEOUT) ; do
+	socat -u STDIN TCP:10.99.99.99:80 < /dev/null
+	sleep 0.1
+	done' &
+
+wait_for_attempt()
+{
+	count=$(ip netns exec "$ns2" conntrack -L -p tcp --dport 80 2>/dev/null | wc -l)
+	if [ "$count" -gt 0 ]; then
+		return 0
+	fi
+
+	return 1
+}
+
+# wait for conntrack to pick the new connection request up before loading
+# the nat redirect rule.
+if ! busywait "$BUSYWAIT_TIMEOUT" wait_for_attempt; then
+	echo "ERROR: $ns2 did not pick up tcp connection from peer"
+	exit 1
+fi
+
+ip netns exec "$ns2" nft -f - <<EOF
+table inet nat {
+	chain prerouting {
+		type nat hook prerouting priority 0; policy accept;
+		ip daddr 10.99.99.99 tcp dport 80 redirect to :8080
+	}
+}
+EOF
+if [ $? -ne 0 ]; then
+	echo "ERROR: Could not load nat redirect"
+	exit 1
+fi
+
+wait_for_redirect()
+{
+	count=$(ip netns exec "$ns2" conntrack -L -p tcp --reply-port-src 8080 2>/dev/null | wc -l)
+	if [ "$count" -gt 0 ]; then
+		return 0
+	fi
+
+	return 1
+}
+echo "INFO: NAT redirect added in ns $ns2, waiting for $BUSYWAIT_TIMEOUT ms for nat to take effect"
+
+busywait "$BUSYWAIT_TIMEOUT" wait_for_redirect
+ret=$?
+
+expect="packets 1 bytes 60"
+if ! check_counter "$ns2" "redir" "$expect"; then
+	ret=1
+fi
+
+if [ $ret -eq 0 ];then
+	echo "PASS: redirection counter has expected values"
+else
+	echo "ERROR: no tcp connection was redirected"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/conntrack_vrf.sh b/tools/testing/selftests/net/netfilter/conntrack_vrf.sh
new file mode 100755
index 000000000000..207b79932d91
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/conntrack_vrf.sh
@@ -0,0 +1,216 @@
+#!/bin/bash
+
+# This script demonstrates interaction of conntrack and vrf.
+# The vrf driver calls the netfilter hooks again, with oif/iif
+# pointing at the VRF device.
+#
+# For ingress, this means first iteration has iifname of lower/real
+# device.  In this script, thats veth0.
+# Second iteration is iifname set to vrf device, tvrf in this script.
+#
+# For egress, this is reversed: first iteration has the vrf device,
+# second iteration is done with the lower/real/veth0 device.
+#
+# test_ct_zone_in demonstrates unexpected change of nftables
+# behavior # caused by commit 09e856d54bda5f28 "vrf: Reset skb conntrack
+# connection on VRF rcv"
+#
+# It was possible to assign conntrack zone to a packet (or mark it for
+# `notracking`) in the prerouting chain before conntrack, based on real iif.
+#
+# After the change, the zone assignment is lost and the zone is assigned based
+# on the VRF master interface (in case such a rule exists).
+# assignment is lost. Instead, assignment based on the `iif` matching
+# Thus it is impossible to distinguish packets based on the original
+# interface.
+#
+# test_masquerade_vrf and test_masquerade_veth0 demonstrate the problem
+# that was supposed to be fixed by the commit mentioned above to make sure
+# that any fix to test case 1 won't break masquerade again.
+
+source lib.sh
+
+IP0=172.30.30.1
+IP1=172.30.30.2
+PFXL=30
+ret=0
+
+cleanup()
+{
+	ip netns pids $ns0 | xargs kill 2>/dev/null
+	ip netns pids $ns1 | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+}
+
+checktool "nft --version" "run test without nft"
+checktool "conntrack --version" "run test without conntrack"
+checktool "socat -h" "run test without socat"
+
+trap cleanup EXIT
+
+setup_ns ns0 ns1
+
+if ! ip link add veth0 netns "$ns0" type veth peer name veth0 netns "$ns1" > /dev/null 2>&1; then
+	echo "SKIP: Could not add veth device"
+	exit $ksft_skip
+fi
+
+if ! ip -net "$ns0" li add tvrf type vrf table 9876; then
+	echo "SKIP: Could not add vrf device"
+	exit $ksft_skip
+fi
+
+ip -net "$ns0" li set veth0 master tvrf
+ip -net "$ns0" li set tvrf up
+ip -net "$ns0" li set veth0 up
+ip -net "$ns1" li set veth0 up
+
+ip -net "$ns0" addr add $IP0/$PFXL dev veth0
+ip -net "$ns1" addr add $IP1/$PFXL dev veth0
+
+listener_ready()
+{
+        local ns="$1"
+
+        ss -N "$ns" -l -n -t -o "sport = :55555" | grep -q "55555"
+}
+
+ip netns exec "$ns1" socat -u -4 TCP-LISTEN:55555,reuseaddr,fork STDOUT > /dev/null &
+busywait $BUSYWAIT_TIMEOUT listener_ready "$ns1"
+
+# test vrf ingress handling.
+# The incoming connection should be placed in conntrack zone 1,
+# as decided by the first iteration of the ruleset.
+test_ct_zone_in()
+{
+ip netns exec "$ns0" nft -f - <<EOF
+table testct {
+	chain rawpre {
+		type filter hook prerouting priority raw;
+
+		iif { veth0, tvrf } counter meta nftrace set 1
+		iif veth0 counter ct zone set 1 counter return
+		iif tvrf counter ct zone set 2 counter return
+		ip protocol icmp counter
+		notrack counter
+	}
+
+	chain rawout {
+		type filter hook output priority raw;
+
+		oif veth0 counter ct zone set 1 counter return
+		oif tvrf counter ct zone set 2 counter return
+		notrack counter
+	}
+}
+EOF
+	ip netns exec "$ns1" ping -W 1 -c 1 -I veth0 "$IP0" > /dev/null
+
+	# should be in zone 1, not zone 2
+	count=$(ip netns exec "$ns0" conntrack -L -s $IP1 -d $IP0 -p icmp --zone 1 2>/dev/null | wc -l)
+	if [ "$count" -eq 1 ]; then
+		echo "PASS: entry found in conntrack zone 1"
+	else
+		echo "FAIL: entry not found in conntrack zone 1"
+		count=$(ip netns exec "$ns0" conntrack -L -s $IP1 -d $IP0 -p icmp --zone 2 2> /dev/null | wc -l)
+		if [ "$count" -eq 1 ]; then
+			echo "FAIL: entry found in zone 2 instead"
+		else
+			echo "FAIL: entry not in zone 1 or 2, dumping table"
+			ip netns exec "$ns0" conntrack -L
+			ip netns exec "$ns0" nft list ruleset
+		fi
+	fi
+}
+
+# add masq rule that gets evaluated w. outif set to vrf device.
+# This tests the first iteration of the packet through conntrack,
+# oifname is the vrf device.
+test_masquerade_vrf()
+{
+	local qdisc=$1
+
+	if [ "$qdisc" != "default" ]; then
+		tc -net "$ns0" qdisc add dev tvrf root "$qdisc"
+	fi
+
+	ip netns exec "$ns0" conntrack -F 2>/dev/null
+
+ip netns exec "$ns0" nft -f - <<EOF
+flush ruleset
+table ip nat {
+	chain rawout {
+		type filter hook output priority raw;
+
+		oif tvrf ct state untracked counter
+	}
+	chain postrouting2 {
+		type filter hook postrouting priority mangle;
+
+		oif tvrf ct state untracked counter
+	}
+	chain postrouting {
+		type nat hook postrouting priority 0;
+		# NB: masquerade should always be combined with 'oif(name) bla',
+		# lack of this is intentional here, we want to exercise double-snat.
+		ip saddr 172.30.30.0/30 counter masquerade random
+	}
+}
+EOF
+	if ! ip netns exec "$ns0" ip vrf exec tvrf socat -u -4 STDIN TCP:"$IP1":55555 < /dev/null > /dev/null;then
+		echo "FAIL: connect failure with masquerade + sport rewrite on vrf device"
+		ret=1
+		return
+	fi
+
+	# must also check that nat table was evaluated on second (lower device) iteration.
+	if ip netns exec "$ns0" nft list table ip nat |grep -q 'counter packets 1' &&
+	   ip netns exec "$ns0" nft list table ip nat |grep -q 'untracked counter packets [1-9]'; then
+		echo "PASS: connect with masquerade + sport rewrite on vrf device ($qdisc qdisc)"
+	else
+		echo "FAIL: vrf rules have unexpected counter value"
+		ret=1
+	fi
+
+	if [ "$qdisc" != "default" ]; then
+		tc -net "$ns0" qdisc del dev tvrf root
+	fi
+}
+
+# add masq rule that gets evaluated w. outif set to veth device.
+# This tests the 2nd iteration of the packet through conntrack,
+# oifname is the lower device (veth0 in this case).
+test_masquerade_veth()
+{
+	ip netns exec "$ns0" conntrack -F 2>/dev/null
+ip netns exec "$ns0" nft -f - <<EOF
+flush ruleset
+table ip nat {
+	chain postrouting {
+		type nat hook postrouting priority 0;
+		meta oif veth0 ip saddr 172.30.30.0/30 counter masquerade random
+	}
+}
+EOF
+	if ! ip netns exec "$ns0" ip vrf exec tvrf socat -u -4 STDIN TCP:"$IP1":55555 < /dev/null > /dev/null;then
+		echo "FAIL: connect failure with masquerade + sport rewrite on veth device"
+		ret=1
+		return
+	fi
+
+	# must also check that nat table was evaluated on second (lower device) iteration.
+	if ip netns exec "$ns0" nft list table ip nat |grep -q 'counter packets 1'; then
+		echo "PASS: connect with masquerade + sport rewrite on veth device"
+	else
+		echo "FAIL: vrf masq rule has unexpected counter value"
+		ret=1
+	fi
+}
+
+test_ct_zone_in
+test_masquerade_vrf "default"
+test_masquerade_vrf "pfifo"
+test_masquerade_veth
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/ipvs.sh b/tools/testing/selftests/net/netfilter/ipvs.sh
new file mode 100755
index 000000000000..9c9d5b38ab71
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/ipvs.sh
@@ -0,0 +1,205 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# End-to-end ipvs test suite
+# Topology:
+#--------------------------------------------------------------+
+#                      |                                       |
+#         ns0          |         ns1                           |
+#      -----------     |     -----------    -----------        |
+#      | veth01  | --------- | veth10  |    | veth12  |        |
+#      -----------    peer   -----------    -----------        |
+#           |          |                        |              |
+#      -----------     |                        |              |
+#      |  br0    |     |-----------------  peer |--------------|
+#      -----------     |                        |              |
+#           |          |                        |              |
+#      ----------     peer   ----------      -----------       |
+#      |  veth02 | --------- |  veth20 |     | veth21  |       |
+#      ----------      |     ----------      -----------       |
+#                      |         ns2                           |
+#                      |                                       |
+#--------------------------------------------------------------+
+#
+# We assume that all network driver are loaded
+#
+
+source lib.sh
+
+ret=0
+GREEN='\033[0;92m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+readonly port=8080
+
+readonly vip_v4=207.175.44.110
+readonly cip_v4=10.0.0.2
+readonly gip_v4=10.0.0.1
+readonly dip_v4=172.16.0.1
+readonly rip_v4=172.16.0.2
+readonly sip_v4=10.0.0.3
+
+readonly infile="$(mktemp)"
+readonly outfile="$(mktemp)"
+readonly datalen=32
+
+sysipvsnet="/proc/sys/net/ipv4/vs/"
+if [ ! -d $sysipvsnet ]; then
+	if ! modprobe -q ip_vs; then
+		echo "skip: could not run test without ipvs module"
+		exit $ksft_skip
+	fi
+fi
+
+checktool "ipvsadm -v" "run test without ipvsadm"
+checktool "socat -h" "run test without socat"
+
+setup() {
+	setup_ns ns0 ns1 ns2
+
+	ip link add veth01 netns "${ns0}" type veth peer name veth10 netns "${ns1}"
+	ip link add veth02 netns "${ns0}" type veth peer name veth20 netns "${ns2}"
+	ip link add veth12 netns "${ns1}" type veth peer name veth21 netns "${ns2}"
+
+	ip netns exec "${ns0}" ip link set veth01 up
+	ip netns exec "${ns0}" ip link set veth02 up
+	ip netns exec "${ns0}" ip link add br0 type bridge
+	ip netns exec "${ns0}" ip link set veth01 master br0
+	ip netns exec "${ns0}" ip link set veth02 master br0
+	ip netns exec "${ns0}" ip link set br0 up
+	ip netns exec "${ns0}" ip addr add "${cip_v4}/24" dev br0
+
+	ip netns exec "${ns1}" ip link set veth10 up
+	ip netns exec "${ns1}" ip addr add "${gip_v4}/24" dev veth10
+	ip netns exec "${ns1}" ip link set veth12 up
+	ip netns exec "${ns1}" ip addr add "${dip_v4}/24" dev veth12
+
+	ip netns exec "${ns2}" ip link set veth21 up
+	ip netns exec "${ns2}" ip addr add "${rip_v4}/24" dev veth21
+	ip netns exec "${ns2}" ip link set veth20 up
+	ip netns exec "${ns2}" ip addr add "${sip_v4}/24" dev veth20
+
+	sleep 1
+
+	dd if=/dev/urandom of="${infile}" bs="${datalen}" count=1 status=none
+}
+
+cleanup() {
+	cleanup_all_ns
+
+	if [ -f "${outfile}" ]; then
+		rm "${outfile}"
+	fi
+	if [ -f "${infile}" ]; then
+		rm "${infile}"
+	fi
+}
+
+server_listen() {
+	ip netns exec "$ns2" timeout 5 socat -u -4 TCP-LISTEN:8080,reuseaddr STDOUT > "${outfile}" &
+	server_pid=$!
+	sleep 0.2
+}
+
+client_connect() {
+	ip netns exec "${ns0}" timeout 2 socat -u -4 STDIN TCP:"${vip_v4}":"${port}" < "${infile}"
+}
+
+verify_data() {
+	wait "${server_pid}"
+	cmp "$infile" "$outfile" 2>/dev/null
+}
+
+test_service() {
+	server_listen
+	client_connect
+	verify_data
+}
+
+
+test_dr() {
+	ip netns exec "${ns0}" ip route add "${vip_v4}" via "${gip_v4}" dev br0
+
+	ip netns exec "${ns1}" sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec "${ns1}" ipvsadm -A -t "${vip_v4}:${port}" -s rr
+	ip netns exec "${ns1}" ipvsadm -a -t "${vip_v4}:${port}" -r "${rip_v4}:${port}"
+	ip netns exec "${ns1}" ip addr add "${vip_v4}/32" dev lo:1
+
+	# avoid incorrect arp response
+	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.arp_ignore=1
+	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.arp_announce=2
+	ip netns exec "${ns2}" ip addr add "${vip_v4}/32" dev lo:1
+
+	test_service
+}
+
+test_nat() {
+	ip netns exec "${ns0}" ip route add "${vip_v4}" via "${gip_v4}" dev br0
+
+	ip netns exec "${ns1}" sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec "${ns1}" ipvsadm -A -t "${vip_v4}:${port}" -s rr
+	ip netns exec "${ns1}" ipvsadm -a -m -t "${vip_v4}:${port}" -r "${rip_v4}:${port}"
+	ip netns exec "${ns1}" ip addr add "${vip_v4}/32" dev lo:1
+
+	ip netns exec "${ns2}" ip link del veth20
+	ip netns exec "${ns2}" ip route add default via "${dip_v4}" dev veth21
+
+	test_service
+}
+
+test_tun() {
+	ip netns exec "${ns0}" ip route add "${vip_v4}" via "${gip_v4}" dev br0
+
+	modprobe -q ipip
+	ip netns exec "${ns1}" ip link set tunl0 up
+	ip netns exec "${ns1}" sysctl -qw net.ipv4.ip_forward=0
+	ip netns exec "${ns1}" sysctl -qw net.ipv4.conf.all.send_redirects=0
+	ip netns exec "${ns1}" sysctl -qw net.ipv4.conf.default.send_redirects=0
+	ip netns exec "${ns1}" ipvsadm -A -t "${vip_v4}:${port}" -s rr
+	ip netns exec "${ns1}" ipvsadm -a -i -t "${vip_v4}:${port}" -r ${rip_v4}:${port}
+	ip netns exec "${ns1}" ip addr add ${vip_v4}/32 dev lo:1
+
+	ip netns exec "${ns2}" ip link set tunl0 up
+	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.arp_ignore=1
+	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.all.arp_announce=2
+	ip netns exec "${ns2}" sysctl -qw net.ipv4.conf.tunl0.rp_filter=0
+	ip netns exec "${ns2}" ip addr add "${vip_v4}/32" dev lo:1
+
+	test_service
+}
+
+run_tests() {
+	local errors=
+
+	echo "Testing DR mode..."
+	cleanup
+	setup
+	test_dr
+	errors=$(( $errors + $? ))
+
+	echo "Testing NAT mode..."
+	cleanup
+	setup
+	test_nat
+	errors=$(( $errors + $? ))
+
+	echo "Testing Tunnel mode..."
+	cleanup
+	setup
+	test_tun
+	errors=$(( $errors + $? ))
+
+	return $errors
+}
+
+trap cleanup EXIT
+
+run_tests
+
+if [ $? -ne 0 ]; then
+	echo -e "$(basename $0): ${RED}FAIL${NC}"
+	exit 1
+fi
+echo -e "$(basename $0): ${GREEN}PASS${NC}"
+exit 0
diff --git a/tools/testing/selftests/net/netfilter/lib.sh b/tools/testing/selftests/net/netfilter/lib.sh
new file mode 100644
index 000000000000..bedd35298e15
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/lib.sh
@@ -0,0 +1,10 @@
+net_netfilter_dir=$(dirname "$(readlink -e "${BASH_SOURCE[0]}")")
+
+source "$net_netfilter_dir/../lib.sh"
+
+checktool (){
+	if ! $1 > /dev/null 2>&1; then
+		echo "SKIP: Could not $2"
+		exit $ksft_skip
+	fi
+}
diff --git a/tools/testing/selftests/net/netfilter/nf_conntrack_packetdrill.sh b/tools/testing/selftests/net/netfilter/nf_conntrack_packetdrill.sh
new file mode 100755
index 000000000000..c6fdd2079f4d
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nf_conntrack_packetdrill.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+checktool "conntrack --version" "run test without conntrack"
+checktool "iptables --version" "run test without iptables"
+checktool "ip6tables --version" "run test without ip6tables"
+
+modprobe -q tun
+modprobe -q nf_conntrack
+# echo 1 > /proc/sys/net/netfilter/nf_log_all_netns
+
+PDRILL_TIMEOUT=10
+
+files="
+conntrack_ack_loss_stall.pkt
+conntrack_inexact_rst.pkt
+conntrack_syn_challenge_ack.pkt
+conntrack_synack_old.pkt
+conntrack_synack_reuse.pkt
+conntrack_rst_invalid.pkt
+"
+
+if ! packetdrill --dry_run --verbose "packetdrill/conntrack_ack_loss_stall.pkt";then
+	echo "SKIP: packetdrill not installed"
+	exit ${ksft_skip}
+fi
+
+ret=0
+
+run_packetdrill()
+{
+	filename="$1"
+	ipver="$2"
+	local mtu=1500
+
+	export NFCT_IP_VERSION="$ipver"
+
+	if [ "$ipver" = "ipv4" ];then
+		export xtables="iptables"
+	elif [ "$ipver" = "ipv6" ];then
+		export xtables="ip6tables"
+		mtu=1520
+	fi
+
+	timeout "$PDRILL_TIMEOUT" unshare -n packetdrill --ip_version="$ipver" --mtu=$mtu \
+		--tolerance_usecs=1000000 --non_fatal packet "$filename"
+}
+
+run_one_test_file()
+{
+	filename="$1"
+
+	for v in ipv4 ipv6;do
+		printf "%-50s(%s)%-20s" "$filename" "$v" ""
+		if run_packetdrill packetdrill/"$f" "$v";then
+			echo OK
+		else
+			echo FAIL
+			ret=1
+		fi
+	done
+}
+
+echo "Replaying packetdrill test cases:"
+for f in $files;do
+	run_one_test_file packetdrill/"$f"
+done
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nf_nat_edemux.sh b/tools/testing/selftests/net/netfilter/nf_nat_edemux.sh
new file mode 100755
index 000000000000..6731fe1eaf2e
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nf_nat_edemux.sh
@@ -0,0 +1,121 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test NAT source port clash resolution
+#
+
+source lib.sh
+ret=0
+socatpid=0
+
+cleanup()
+{
+	[ "$socatpid" -gt 0 ] && kill "$socatpid"
+
+	cleanup_all_ns
+}
+
+checktool "socat -h" "run test without socat"
+checktool "iptables --version" "run test without iptables"
+checktool "conntrack --version" "run test without conntrack"
+
+trap cleanup EXIT
+
+connect_done()
+{
+	local ns="$1"
+	local port="$2"
+
+	ip netns exec "$ns" ss -nt -o state established "dport = :$port" | grep -q "$port"
+}
+
+check_ctstate()
+{
+	local ns="$1"
+	local dp="$2"
+
+	if ! ip netns exec "$ns" conntrack --get -s 192.168.1.2 -d 192.168.1.1 -p tcp \
+	     --sport 10000 --dport "$dp" --state ESTABLISHED > /dev/null 2>&1;then
+		echo "FAIL: Did not find expected state for dport $2"
+		ip netns exec "$ns" bash -c 'conntrack -L; conntrack -S; ss -nt'
+		ret=1
+	fi
+}
+
+setup_ns ns1 ns2
+
+# Connect the namespaces using a veth pair
+ip link add name veth2 type veth peer name veth1
+ip link set netns "$ns1" dev veth1
+ip link set netns "$ns2" dev veth2
+
+ip netns exec "$ns1" ip link set up dev lo
+ip netns exec "$ns1" ip link set up dev veth1
+ip netns exec "$ns1" ip addr add 192.168.1.1/24 dev veth1
+
+ip netns exec "$ns2" ip link set up dev lo
+ip netns exec "$ns2" ip link set up dev veth2
+ip netns exec "$ns2" ip addr add 192.168.1.2/24 dev veth2
+
+# Create a server in one namespace
+ip netns exec "$ns1" socat -u TCP-LISTEN:5201,fork OPEN:/dev/null,wronly=1 &
+socatpid=$!
+
+# Restrict source port to just one so we don't have to exhaust
+# all others.
+ip netns exec "$ns2" sysctl -q net.ipv4.ip_local_port_range="10000 10000"
+
+# add a virtual IP using DNAT
+ip netns exec "$ns2" iptables -t nat -A OUTPUT -d 10.96.0.1/32 -p tcp --dport 443 -j DNAT --to-destination 192.168.1.1:5201 || exit 1
+
+# ... and route it to the other namespace
+ip netns exec "$ns2" ip route add 10.96.0.1 via 192.168.1.1
+
+# listener should be up by now, wait if it isn't yet.
+wait_local_port_listen "$ns1" 5201 tcp
+
+# add a persistent connection from the other namespace
+sleep 10 | ip netns exec "$ns2" socat -t 10 - TCP:192.168.1.1:5201 > /dev/null &
+cpid0=$!
+busywait "$BUSYWAIT_TIMEOUT" connect_done "$ns2" "5201"
+
+# ip daddr:dport will be rewritten to 192.168.1.1 5201
+# NAT must reallocate source port 10000 because
+# 192.168.1.2:10000 -> 192.168.1.1:5201 is already in use
+echo test | ip netns exec "$ns2" socat -t 3 -u STDIN TCP:10.96.0.1:443,connect-timeout=3 >/dev/null
+ret=$?
+
+# Check socat can connect to 10.96.0.1:443 (aka 192.168.1.1:5201).
+if [ $ret -eq 0 ]; then
+	echo "PASS: socat can connect via NAT'd address"
+else
+	echo "FAIL: socat cannot connect via NAT'd address"
+fi
+
+# check sport clashres.
+ip netns exec "$ns1" iptables -t nat -A PREROUTING -p tcp --dport 5202 -j REDIRECT --to-ports 5201
+ip netns exec "$ns1" iptables -t nat -A PREROUTING -p tcp --dport 5203 -j REDIRECT --to-ports 5201
+
+sleep 5 | ip netns exec "$ns2" socat -T 5 -u STDIN TCP:192.168.1.1:5202,connect-timeout=5 >/dev/null &
+cpid1=$!
+
+sleep 5 | ip netns exec "$ns2" socat -T 5 -u STDIN TCP:192.168.1.1:5203,connect-timeout=5 >/dev/null &
+cpid2=$!
+
+busywait "$BUSYWAIT_TIMEOUT" connect_done "$ns2" 5202
+busywait "$BUSYWAIT_TIMEOUT" connect_done "$ns2" 5203
+
+check_ctstate "$ns1" 5202
+check_ctstate "$ns1" 5203
+
+kill $socatpid $cpid0 $cpid1 $cpid2
+socatpid=0
+
+if [ $ret -eq 0 ]; then
+	echo "PASS: could connect to service via redirected ports"
+else
+	echo "FAIL: socat cannot connect to service via redirect"
+	ret=1
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nf_queue.c b/tools/testing/selftests/net/netfilter/nf_queue.c
new file mode 100644
index 000000000000..9e56b9d47037
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nf_queue.c
@@ -0,0 +1,395 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <arpa/inet.h>
+
+#include <libmnl/libmnl.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nfnetlink_queue.h>
+
+struct options {
+	bool count_packets;
+	bool gso_enabled;
+	int verbose;
+	unsigned int queue_num;
+	unsigned int timeout;
+	uint32_t verdict;
+	uint32_t delay_ms;
+};
+
+static unsigned int queue_stats[5];
+static struct options opts;
+
+static void help(const char *p)
+{
+	printf("Usage: %s [-c|-v [-vv] ] [-t timeout] [-q queue_num] [-Qdst_queue ] [ -d ms_delay ] [-G]\n", p);
+}
+
+static int parse_attr_cb(const struct nlattr *attr, void *data)
+{
+	const struct nlattr **tb = data;
+	int type = mnl_attr_get_type(attr);
+
+	/* skip unsupported attribute in user-space */
+	if (mnl_attr_type_valid(attr, NFQA_MAX) < 0)
+		return MNL_CB_OK;
+
+	switch (type) {
+	case NFQA_MARK:
+	case NFQA_IFINDEX_INDEV:
+	case NFQA_IFINDEX_OUTDEV:
+	case NFQA_IFINDEX_PHYSINDEV:
+	case NFQA_IFINDEX_PHYSOUTDEV:
+		if (mnl_attr_validate(attr, MNL_TYPE_U32) < 0) {
+			perror("mnl_attr_validate");
+			return MNL_CB_ERROR;
+		}
+		break;
+	case NFQA_TIMESTAMP:
+		if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC,
+		    sizeof(struct nfqnl_msg_packet_timestamp)) < 0) {
+			perror("mnl_attr_validate2");
+			return MNL_CB_ERROR;
+		}
+		break;
+	case NFQA_HWADDR:
+		if (mnl_attr_validate2(attr, MNL_TYPE_UNSPEC,
+		    sizeof(struct nfqnl_msg_packet_hw)) < 0) {
+			perror("mnl_attr_validate2");
+			return MNL_CB_ERROR;
+		}
+		break;
+	case NFQA_PAYLOAD:
+		break;
+	}
+	tb[type] = attr;
+	return MNL_CB_OK;
+}
+
+static int queue_cb(const struct nlmsghdr *nlh, void *data)
+{
+	struct nlattr *tb[NFQA_MAX+1] = { 0 };
+	struct nfqnl_msg_packet_hdr *ph = NULL;
+	uint32_t id = 0;
+
+	(void)data;
+
+	mnl_attr_parse(nlh, sizeof(struct nfgenmsg), parse_attr_cb, tb);
+	if (tb[NFQA_PACKET_HDR]) {
+		ph = mnl_attr_get_payload(tb[NFQA_PACKET_HDR]);
+		id = ntohl(ph->packet_id);
+
+		if (opts.verbose > 0)
+			printf("packet hook=%u, hwproto 0x%x",
+				ntohs(ph->hw_protocol), ph->hook);
+
+		if (ph->hook >= 5) {
+			fprintf(stderr, "Unknown hook %d\n", ph->hook);
+			return MNL_CB_ERROR;
+		}
+
+		if (opts.verbose > 0) {
+			uint32_t skbinfo = 0;
+
+			if (tb[NFQA_SKB_INFO])
+				skbinfo = ntohl(mnl_attr_get_u32(tb[NFQA_SKB_INFO]));
+			if (skbinfo & NFQA_SKB_CSUMNOTREADY)
+				printf(" csumnotready");
+			if (skbinfo & NFQA_SKB_GSO)
+				printf(" gso");
+			if (skbinfo & NFQA_SKB_CSUM_NOTVERIFIED)
+				printf(" csumnotverified");
+			puts("");
+		}
+
+		if (opts.count_packets)
+			queue_stats[ph->hook]++;
+	}
+
+	return MNL_CB_OK + id;
+}
+
+static struct nlmsghdr *
+nfq_build_cfg_request(char *buf, uint8_t command, int queue_num)
+{
+	struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
+	struct nfqnl_msg_config_cmd cmd = {
+		.command = command,
+		.pf = htons(AF_INET),
+	};
+	struct nfgenmsg *nfg;
+
+	nlh->nlmsg_type	= (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_CONFIG;
+	nlh->nlmsg_flags = NLM_F_REQUEST;
+
+	nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+
+	nfg->nfgen_family = AF_UNSPEC;
+	nfg->version = NFNETLINK_V0;
+	nfg->res_id = htons(queue_num);
+
+	mnl_attr_put(nlh, NFQA_CFG_CMD, sizeof(cmd), &cmd);
+
+	return nlh;
+}
+
+static struct nlmsghdr *
+nfq_build_cfg_params(char *buf, uint8_t mode, int range, int queue_num)
+{
+	struct nlmsghdr *nlh = mnl_nlmsg_put_header(buf);
+	struct nfqnl_msg_config_params params = {
+		.copy_range = htonl(range),
+		.copy_mode = mode,
+	};
+	struct nfgenmsg *nfg;
+
+	nlh->nlmsg_type	= (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_CONFIG;
+	nlh->nlmsg_flags = NLM_F_REQUEST;
+
+	nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+	nfg->nfgen_family = AF_UNSPEC;
+	nfg->version = NFNETLINK_V0;
+	nfg->res_id = htons(queue_num);
+
+	mnl_attr_put(nlh, NFQA_CFG_PARAMS, sizeof(params), &params);
+
+	return nlh;
+}
+
+static struct nlmsghdr *
+nfq_build_verdict(char *buf, int id, int queue_num, uint32_t verd)
+{
+	struct nfqnl_msg_verdict_hdr vh = {
+		.verdict = htonl(verd),
+		.id = htonl(id),
+	};
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfg;
+
+	nlh = mnl_nlmsg_put_header(buf);
+	nlh->nlmsg_type = (NFNL_SUBSYS_QUEUE << 8) | NFQNL_MSG_VERDICT;
+	nlh->nlmsg_flags = NLM_F_REQUEST;
+	nfg = mnl_nlmsg_put_extra_header(nlh, sizeof(*nfg));
+	nfg->nfgen_family = AF_UNSPEC;
+	nfg->version = NFNETLINK_V0;
+	nfg->res_id = htons(queue_num);
+
+	mnl_attr_put(nlh, NFQA_VERDICT_HDR, sizeof(vh), &vh);
+
+	return nlh;
+}
+
+static void print_stats(void)
+{
+	unsigned int last, total;
+	int i;
+
+	total = 0;
+	last = queue_stats[0];
+
+	for (i = 0; i < 5; i++) {
+		printf("hook %d packets %08u\n", i, queue_stats[i]);
+		last = queue_stats[i];
+		total += last;
+	}
+
+	printf("%u packets total\n", total);
+}
+
+struct mnl_socket *open_queue(void)
+{
+	char buf[MNL_SOCKET_BUFFER_SIZE];
+	unsigned int queue_num;
+	struct mnl_socket *nl;
+	struct nlmsghdr *nlh;
+	struct timeval tv;
+	uint32_t flags;
+
+	nl = mnl_socket_open(NETLINK_NETFILTER);
+	if (nl == NULL) {
+		perror("mnl_socket_open");
+		exit(EXIT_FAILURE);
+	}
+
+	if (mnl_socket_bind(nl, 0, MNL_SOCKET_AUTOPID) < 0) {
+		perror("mnl_socket_bind");
+		exit(EXIT_FAILURE);
+	}
+
+	queue_num = opts.queue_num;
+	nlh = nfq_build_cfg_request(buf, NFQNL_CFG_CMD_BIND, queue_num);
+
+	if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+		perror("mnl_socket_sendto");
+		exit(EXIT_FAILURE);
+	}
+
+	nlh = nfq_build_cfg_params(buf, NFQNL_COPY_PACKET, 0xFFFF, queue_num);
+
+	flags = opts.gso_enabled ? NFQA_CFG_F_GSO : 0;
+	flags |= NFQA_CFG_F_UID_GID;
+	mnl_attr_put_u32(nlh, NFQA_CFG_FLAGS, htonl(flags));
+	mnl_attr_put_u32(nlh, NFQA_CFG_MASK, htonl(flags));
+
+	if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+		perror("mnl_socket_sendto");
+		exit(EXIT_FAILURE);
+	}
+
+	memset(&tv, 0, sizeof(tv));
+	tv.tv_sec = opts.timeout;
+	if (opts.timeout && setsockopt(mnl_socket_get_fd(nl),
+				       SOL_SOCKET, SO_RCVTIMEO,
+				       &tv, sizeof(tv))) {
+		perror("setsockopt(SO_RCVTIMEO)");
+		exit(EXIT_FAILURE);
+	}
+
+	return nl;
+}
+
+static void sleep_ms(uint32_t delay)
+{
+	struct timespec ts = { .tv_sec = delay / 1000 };
+
+	delay %= 1000;
+
+	ts.tv_nsec = delay * 1000llu * 1000llu;
+
+	nanosleep(&ts, NULL);
+}
+
+static int mainloop(void)
+{
+	unsigned int buflen = 64 * 1024 + MNL_SOCKET_BUFFER_SIZE;
+	struct mnl_socket *nl;
+	struct nlmsghdr *nlh;
+	unsigned int portid;
+	char *buf;
+	int ret;
+
+	buf = malloc(buflen);
+	if (!buf) {
+		perror("malloc");
+		exit(EXIT_FAILURE);
+	}
+
+	nl = open_queue();
+	portid = mnl_socket_get_portid(nl);
+
+	for (;;) {
+		uint32_t id;
+
+		ret = mnl_socket_recvfrom(nl, buf, buflen);
+		if (ret == -1) {
+			if (errno == ENOBUFS || errno == EINTR)
+				continue;
+
+			if (errno == EAGAIN) {
+				errno = 0;
+				ret = 0;
+				break;
+			}
+
+			perror("mnl_socket_recvfrom");
+			exit(EXIT_FAILURE);
+		}
+
+		ret = mnl_cb_run(buf, ret, 0, portid, queue_cb, NULL);
+		if (ret < 0) {
+			perror("mnl_cb_run");
+			exit(EXIT_FAILURE);
+		}
+
+		id = ret - MNL_CB_OK;
+		if (opts.delay_ms)
+			sleep_ms(opts.delay_ms);
+
+		nlh = nfq_build_verdict(buf, id, opts.queue_num, opts.verdict);
+		if (mnl_socket_sendto(nl, nlh, nlh->nlmsg_len) < 0) {
+			perror("mnl_socket_sendto");
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	mnl_socket_close(nl);
+
+	return ret;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "chvt:q:Q:d:G")) != -1) {
+		switch (c) {
+		case 'c':
+			opts.count_packets = true;
+			break;
+		case 'h':
+			help(argv[0]);
+			exit(0);
+			break;
+		case 'q':
+			opts.queue_num = atoi(optarg);
+			if (opts.queue_num > 0xffff)
+				opts.queue_num = 0;
+			break;
+		case 'Q':
+			opts.verdict = atoi(optarg);
+			if (opts.verdict > 0xffff) {
+				fprintf(stderr, "Expected destination queue number\n");
+				exit(1);
+			}
+
+			opts.verdict <<= 16;
+			opts.verdict |= NF_QUEUE;
+			break;
+		case 'd':
+			opts.delay_ms = atoi(optarg);
+			if (opts.delay_ms == 0) {
+				fprintf(stderr, "Expected nonzero delay (in milliseconds)\n");
+				exit(1);
+			}
+			break;
+		case 't':
+			opts.timeout = atoi(optarg);
+			break;
+		case 'G':
+			opts.gso_enabled = false;
+			break;
+		case 'v':
+			opts.verbose++;
+			break;
+		}
+	}
+
+	if (opts.verdict != NF_ACCEPT && (opts.verdict >> 16 == opts.queue_num)) {
+		fprintf(stderr, "Cannot use same destination and source queue\n");
+		exit(1);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int ret;
+
+	opts.verdict = NF_ACCEPT;
+	opts.gso_enabled = true;
+
+	parse_opts(argc, argv);
+
+	ret = mainloop();
+	if (opts.count_packets)
+		print_stats();
+
+	return ret;
+}
diff --git a/tools/testing/selftests/net/netfilter/nft_audit.sh b/tools/testing/selftests/net/netfilter/nft_audit.sh
new file mode 100755
index 000000000000..87f2b4c725aa
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_audit.sh
@@ -0,0 +1,269 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check that audit logs generated for nft commands are as expected.
+
+SKIP_RC=4
+RC=0
+
+if [ -r /var/run/auditd.pid ];then
+	read pid < /var/run/auditd.pid
+	p=$(pgrep ^auditd$)
+
+	if [ "$pid" -eq "$p" ]; then
+		echo "SKIP: auditd is running"
+		exit $SKIP_RC
+	fi
+fi
+
+nft --version >/dev/null 2>&1 || {
+	echo "SKIP: missing nft tool"
+	exit $SKIP_RC
+}
+
+# nft must be recent enough to support "reset" keyword.
+nft --check -f /dev/stdin >/dev/null 2>&1 <<EOF
+add table t
+add chain t c
+reset rules t c
+EOF
+
+if [ "$?" -ne 0 ];then
+	echo -n "SKIP: nft reset feature test failed: "
+	nft --version
+	exit $SKIP_RC
+fi
+
+# Run everything in a separate network namespace
+[ "${1}" != "run" ] && { unshare -n "${0}" run; exit $?; }
+
+# give other scripts a chance to finish - audit_logread sees all activity
+sleep 1
+
+logfile=$(mktemp)
+rulefile=$(mktemp)
+echo "logging into $logfile"
+./audit_logread >"$logfile" &
+logread_pid=$!
+trap 'kill $logread_pid; rm -f $logfile $rulefile' EXIT
+exec 3<"$logfile"
+
+lsplit='s/^\(.*\) entries=\([^ ]*\) \(.*\)$/pfx="\1"\nval="\2"\nsfx="\3"/'
+summarize_logs() {
+	sum=0
+	while read line; do
+		eval $(sed "$lsplit" <<< "$line")
+		[[ $sum -gt 0 ]] && {
+			[[ "$pfx $sfx" == "$tpfx $tsfx" ]] && {
+				let "sum += val"
+				continue
+			}
+			echo "$tpfx entries=$sum $tsfx"
+		}
+		tpfx="$pfx"
+		tsfx="$sfx"
+		sum=$val
+	done
+	echo "$tpfx entries=$sum $tsfx"
+}
+
+do_test() { # (cmd, log)
+	echo -n "testing for cmd: $1 ... "
+	cat <&3 >/dev/null
+	$1 >/dev/null || exit 1
+	sleep 0.1
+	res=$(diff -a -u <(echo "$2") <(summarize_logs <&3))
+	[ $? -eq 0 ] && { echo "OK"; return; }
+	echo "FAIL"
+	grep -v '^\(---\|+++\|@@\)' <<< "$res"
+	((RC--))
+}
+
+nft flush ruleset
+
+# adding tables, chains and rules
+
+for table in t1 t2; do
+	do_test "nft add table $table" \
+	"table=$table family=2 entries=1 op=nft_register_table"
+
+	do_test "nft add chain $table c1" \
+	"table=$table family=2 entries=1 op=nft_register_chain"
+
+	do_test "nft add chain $table c2; add chain $table c3" \
+	"table=$table family=2 entries=2 op=nft_register_chain"
+
+	cmd="add rule $table c1 counter"
+
+	do_test "nft $cmd" \
+	"table=$table family=2 entries=1 op=nft_register_rule"
+
+	do_test "nft $cmd; $cmd" \
+	"table=$table family=2 entries=2 op=nft_register_rule"
+
+	cmd=""
+	sep=""
+	for chain in c2 c3; do
+		for i in {1..3}; do
+			cmd+="$sep add rule $table $chain counter"
+			sep=";"
+		done
+	done
+	do_test "nft $cmd" \
+	"table=$table family=2 entries=6 op=nft_register_rule"
+done
+
+for ((i = 0; i < 500; i++)); do
+	echo "add rule t2 c3 counter accept comment \"rule $i\""
+done > "$rulefile"
+do_test "nft -f $rulefile" \
+'table=t2 family=2 entries=500 op=nft_register_rule'
+
+# adding sets and elements
+
+settype='type inet_service; counter'
+setelem='{ 22, 80, 443 }'
+setblock="{ $settype; elements = $setelem; }"
+do_test "nft add set t1 s $setblock" \
+"table=t1 family=2 entries=4 op=nft_register_set"
+
+do_test "nft add set t1 s2 $setblock; add set t1 s3 { $settype; }" \
+"table=t1 family=2 entries=5 op=nft_register_set"
+
+do_test "nft add element t1 s3 $setelem" \
+"table=t1 family=2 entries=3 op=nft_register_setelem"
+
+# adding counters
+
+do_test 'nft add counter t1 c1' \
+'table=t1 family=2 entries=1 op=nft_register_obj'
+
+do_test 'nft add counter t2 c1; add counter t2 c2' \
+'table=t2 family=2 entries=2 op=nft_register_obj'
+
+for ((i = 3; i <= 500; i++)); do
+	echo "add counter t2 c$i"
+done > "$rulefile"
+do_test "nft -f $rulefile" \
+'table=t2 family=2 entries=498 op=nft_register_obj'
+
+# adding/updating quotas
+
+do_test 'nft add quota t1 q1 { 10 bytes }' \
+'table=t1 family=2 entries=1 op=nft_register_obj'
+
+do_test 'nft add quota t2 q1 { 10 bytes }; add quota t2 q2 { 10 bytes }' \
+'table=t2 family=2 entries=2 op=nft_register_obj'
+
+for ((i = 3; i <= 500; i++)); do
+	echo "add quota t2 q$i { 10 bytes }"
+done > "$rulefile"
+do_test "nft -f $rulefile" \
+'table=t2 family=2 entries=498 op=nft_register_obj'
+
+# changing the quota value triggers obj update path
+do_test 'nft add quota t1 q1 { 20 bytes }' \
+'table=t1 family=2 entries=1 op=nft_register_obj'
+
+# resetting rules
+
+do_test 'nft reset rules t1 c2' \
+'table=t1 family=2 entries=3 op=nft_reset_rule'
+
+do_test 'nft reset rules table t1' \
+'table=t1 family=2 entries=9 op=nft_reset_rule'
+
+do_test 'nft reset rules t2 c3' \
+'table=t2 family=2 entries=503 op=nft_reset_rule'
+
+do_test 'nft reset rules t2' \
+'table=t2 family=2 entries=509 op=nft_reset_rule'
+
+do_test 'nft reset rules' \
+'table=t1 family=2 entries=9 op=nft_reset_rule
+table=t2 family=2 entries=509 op=nft_reset_rule'
+
+# resetting sets and elements
+
+elem=(22 ",80" ",443")
+relem=""
+for i in {1..3}; do
+	relem+="${elem[((i - 1))]}"
+	do_test "nft reset element t1 s { $relem }" \
+	"table=t1 family=2 entries=$i op=nft_reset_setelem"
+done
+
+do_test 'nft reset set t1 s' \
+'table=t1 family=2 entries=3 op=nft_reset_setelem'
+
+# resetting counters
+
+do_test 'nft reset counter t1 c1' \
+'table=t1 family=2 entries=1 op=nft_reset_obj'
+
+do_test 'nft reset counters t1' \
+'table=t1 family=2 entries=1 op=nft_reset_obj'
+
+do_test 'nft reset counters t2' \
+'table=t2 family=2 entries=500 op=nft_reset_obj'
+
+do_test 'nft reset counters' \
+'table=t1 family=2 entries=1 op=nft_reset_obj
+table=t2 family=2 entries=500 op=nft_reset_obj'
+
+# resetting quotas
+
+do_test 'nft reset quota t1 q1' \
+'table=t1 family=2 entries=1 op=nft_reset_obj'
+
+do_test 'nft reset quotas t1' \
+'table=t1 family=2 entries=1 op=nft_reset_obj'
+
+do_test 'nft reset quotas t2' \
+'table=t2 family=2 entries=500 op=nft_reset_obj'
+
+do_test 'nft reset quotas' \
+'table=t1 family=2 entries=1 op=nft_reset_obj
+table=t2 family=2 entries=500 op=nft_reset_obj'
+
+# deleting rules
+
+readarray -t handles < <(nft -a list chain t1 c1 | \
+			 sed -n 's/.*counter.* handle \(.*\)$/\1/p')
+
+do_test "nft delete rule t1 c1 handle ${handles[0]}" \
+'table=t1 family=2 entries=1 op=nft_unregister_rule'
+
+cmd='delete rule t1 c1 handle'
+do_test "nft $cmd ${handles[1]}; $cmd ${handles[2]}" \
+'table=t1 family=2 entries=2 op=nft_unregister_rule'
+
+do_test 'nft flush chain t1 c2' \
+'table=t1 family=2 entries=3 op=nft_unregister_rule'
+
+do_test 'nft flush table t2' \
+'table=t2 family=2 entries=509 op=nft_unregister_rule'
+
+# deleting chains
+
+do_test 'nft delete chain t2 c2' \
+'table=t2 family=2 entries=1 op=nft_unregister_chain'
+
+# deleting sets and elements
+
+do_test 'nft delete element t1 s { 22 }' \
+'table=t1 family=2 entries=1 op=nft_unregister_setelem'
+
+do_test 'nft delete element t1 s { 80, 443 }' \
+'table=t1 family=2 entries=2 op=nft_unregister_setelem'
+
+do_test 'nft flush set t1 s2' \
+'table=t1 family=2 entries=3 op=nft_unregister_setelem'
+
+do_test 'nft delete set t1 s2' \
+'table=t1 family=2 entries=1 op=nft_unregister_set'
+
+do_test 'nft delete set t1 s3' \
+'table=t1 family=2 entries=1 op=nft_unregister_set'
+
+exit $RC
diff --git a/tools/testing/selftests/net/netfilter/nft_concat_range.sh b/tools/testing/selftests/net/netfilter/nft_concat_range.sh
new file mode 100755
index 000000000000..ad97c6227f35
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_concat_range.sh
@@ -0,0 +1,2021 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# nft_concat_range.sh - Tests for sets with concatenation of ranged fields
+#
+# Copyright (c) 2019 Red Hat GmbH
+#
+# Author: Stefano Brivio <sbrivio@redhat.com>
+#
+# shellcheck disable=SC2154,SC2034,SC2016,SC2030,SC2031,SC2317
+# ^ Configuration and templates sourced with eval, counters reused in subshells
+
+source lib.sh
+
+# Available test groups:
+# - reported_issues: check for issues that were reported in the past
+# - correctness: check that packets match given entries, and only those
+# - correctness_large: same but with additional non-matching entries
+# - concurrency: attempt races between insertion, deletion and lookup
+# - timeout: check that packets match entries until they expire
+# - performance: estimate matching rate, compare with rbtree and hash baselines
+TESTS="reported_issues correctness correctness_large concurrency timeout"
+
+[ -n "$NFT_CONCAT_RANGE_TESTS" ] && TESTS="${NFT_CONCAT_RANGE_TESTS}"
+
+# Set types, defined by TYPE_ variables below
+TYPES="net_port port_net net6_port port_proto net6_port_mac net6_port_mac_proto
+       net_port_net net_mac mac_net net_mac_icmp net6_mac_icmp
+       net6_port_net6_port net_port_mac_proto_net"
+
+# Reported bugs, also described by TYPE_ variables below
+BUGS="flush_remove_add reload net_port_proto_match avx2_mismatch doublecreate"
+
+# List of possible paths to pktgen script from kernel tree for performance tests
+PKTGEN_SCRIPT_PATHS="
+	../../../../../samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
+	pktgen/pktgen_bench_xmit_mode_netif_receive.sh"
+
+# Definition of set types:
+# display	display text for test report
+# type_spec	nftables set type specifier
+# chain_spec	nftables type specifier for rules mapping to set
+# dst		call sequence of format_*() functions for destination fields
+# src		call sequence of format_*() functions for source fields
+# start		initial integer used to generate addresses and ports
+# count		count of entries to generate and match
+# src_delta	number summed to destination generator for source fields
+# tools		list of tools for correctness and timeout tests, any can be used
+# proto		L4 protocol of test packets
+#
+# race_repeat	race attempts per thread, 0 disables concurrency test for type
+# flood_tools	list of tools for concurrency tests, any can be used
+# flood_proto	L4 protocol of test packets for concurrency tests
+# flood_spec	nftables type specifier for concurrency tests
+#
+# perf_duration	duration of single pktgen injection test
+# perf_spec	nftables type specifier for performance tests
+# perf_dst	format_*() functions for destination fields in performance test
+# perf_src	format_*() functions for source fields in performance test
+# perf_entries	number of set entries for performance test
+# perf_proto	L3 protocol of test packets
+TYPE_net_port="
+display		net,port
+type_spec	ipv4_addr . inet_service
+chain_spec	ip daddr . udp dport
+dst		addr4 port
+src		 
+start		1
+count		5
+src_delta	2000
+tools		sendip bash
+proto		udp
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	udp
+flood_spec	ip daddr . udp dport
+
+perf_duration	5
+perf_spec	ip daddr . udp dport
+perf_dst	addr4 port
+perf_src	 
+perf_entries	1000
+perf_proto	ipv4
+"
+
+TYPE_port_net="
+display		port,net
+type_spec	inet_service . ipv4_addr
+chain_spec	udp dport . ip daddr
+dst		port addr4
+src		 
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	udp
+flood_spec	udp dport . ip daddr
+
+perf_duration	5
+perf_spec	udp dport . ip daddr
+perf_dst	port addr4
+perf_src	 
+perf_entries	100
+perf_proto	ipv4
+"
+
+TYPE_net6_port="
+display		net6,port
+type_spec	ipv6_addr . inet_service
+chain_spec	ip6 daddr . udp dport
+dst		addr6 port
+src		 
+start		10
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp6
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	tcp6
+flood_spec	ip6 daddr . udp dport
+
+perf_duration	5
+perf_spec	ip6 daddr . udp dport
+perf_dst	addr6 port
+perf_src	 
+perf_entries	1000
+perf_proto	ipv6
+"
+
+TYPE_port_proto="
+display		port,proto
+type_spec	inet_service . inet_proto
+chain_spec	udp dport . meta l4proto
+dst		port proto
+src		 
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	5
+perf_spec	udp dport . meta l4proto
+perf_dst	port proto
+perf_src	 
+perf_entries	30000
+perf_proto	ipv4
+"
+
+TYPE_net6_port_mac="
+display		net6,port,mac
+type_spec	ipv6_addr . inet_service . ether_addr
+chain_spec	ip6 daddr . udp dport . ether saddr
+dst		addr6 port
+src		mac
+start		10
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp6
+
+race_repeat	0
+
+perf_duration	5
+perf_spec	ip6 daddr . udp dport . ether daddr
+perf_dst	addr6 port mac
+perf_src	 
+perf_entries	10
+perf_proto	ipv6
+"
+
+TYPE_net6_port_mac_proto="
+display		net6,port,mac,proto
+type_spec	ipv6_addr . inet_service . ether_addr . inet_proto
+chain_spec	ip6 daddr . udp dport . ether saddr . meta l4proto
+dst		addr6 port
+src		mac proto
+start		10
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp6
+
+race_repeat	0
+
+perf_duration	5
+perf_spec	ip6 daddr . udp dport . ether daddr . meta l4proto
+perf_dst	addr6 port mac proto
+perf_src	 
+perf_entries	1000
+perf_proto	ipv6
+"
+
+TYPE_net_port_net="
+display		net,port,net
+type_spec	ipv4_addr . inet_service . ipv4_addr
+chain_spec	ip daddr . udp dport . ip saddr
+dst		addr4 port
+src		addr4
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	tcp
+flood_spec	ip daddr . udp dport . ip saddr
+
+perf_duration	0
+"
+
+TYPE_net6_port_net6_port="
+display		net6,port,net6,port
+type_spec	ipv6_addr . inet_service . ipv6_addr . inet_service
+chain_spec	ip6 daddr . udp dport . ip6 saddr . udp sport
+dst		addr6 port
+src		addr6 port
+start		10
+count		5
+src_delta	2000
+tools		sendip socat
+proto		udp6
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	tcp6
+flood_spec	ip6 daddr . tcp dport . ip6 saddr . tcp sport
+
+perf_duration	0
+"
+
+TYPE_net_port_mac_proto_net="
+display		net,port,mac,proto,net
+type_spec	ipv4_addr . inet_service . ether_addr . inet_proto . ipv4_addr
+chain_spec	ip daddr . udp dport . ether saddr . meta l4proto . ip saddr
+dst		addr4 port
+src		mac proto addr4
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_net_mac="
+display		net,mac
+type_spec	ipv4_addr . ether_addr
+chain_spec	ip daddr . ether saddr
+dst		addr4
+src		mac
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	5
+perf_spec	ip daddr . ether daddr
+perf_dst	addr4 mac
+perf_src	 
+perf_entries	1000
+perf_proto	ipv4
+"
+
+TYPE_mac_net="
+display		mac,net
+type_spec	ether_addr . ipv4_addr
+chain_spec	ether saddr . ip saddr
+dst		 
+src		mac addr4
+start		1
+count		5
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_net_mac_icmp="
+display		net,mac - ICMP
+type_spec	ipv4_addr . ether_addr
+chain_spec	ip daddr . ether saddr
+dst		addr4
+src		mac
+start		1
+count		5
+src_delta	2000
+tools		ping
+proto		icmp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_net6_mac_icmp="
+display		net6,mac - ICMPv6
+type_spec	ipv6_addr . ether_addr
+chain_spec	ip6 daddr . ether saddr
+dst		addr6
+src		mac
+start		10
+count		50
+src_delta	2000
+tools		ping
+proto		icmp6
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_net_port_proto_net="
+display		net,port,proto,net
+type_spec	ipv4_addr . inet_service . inet_proto . ipv4_addr
+chain_spec	ip daddr . udp dport . meta l4proto . ip saddr
+dst		addr4 port proto
+src		addr4
+start		1
+count		5
+src_delta	2000
+tools		sendip socat
+proto		udp
+
+race_repeat	3
+flood_tools	iperf3 iperf netperf
+flood_proto	tcp
+flood_spec	ip daddr . tcp dport . meta l4proto . ip saddr
+
+perf_duration	0
+"
+
+# Definition of tests for bugs reported in the past:
+# display	display text for test report
+TYPE_flush_remove_add="
+display		Add two elements, flush, re-add
+"
+
+TYPE_reload="
+display		net,mac with reload
+type_spec	ipv4_addr . ether_addr
+chain_spec	ip daddr . ether saddr
+dst		addr4
+src		mac
+start		1
+count		1
+src_delta	2000
+tools		sendip socat bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_net_port_proto_match="
+display		net,port,proto
+type_spec	ipv4_addr . inet_service . inet_proto
+chain_spec	ip daddr . udp dport . meta l4proto
+dst		addr4 port proto
+src		 
+start		1
+count		9
+src_delta	9
+tools		sendip bash
+proto		udp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+TYPE_avx2_mismatch="
+display		avx2 false match
+type_spec	inet_proto . ipv6_addr
+chain_spec	meta l4proto . ip6 daddr
+dst		proto addr6
+src
+start		1
+count		1
+src_delta	1
+tools		ping
+proto		icmp6
+
+race_repeat	0
+
+perf_duration	0
+"
+
+
+TYPE_doublecreate="
+display		cannot create same element twice
+type_spec	ipv4_addr . ipv4_addr
+chain_spec	ip saddr . ip daddr
+dst		addr4
+proto		icmp
+
+race_repeat	0
+
+perf_duration	0
+"
+
+# Set template for all tests, types and rules are filled in depending on test
+set_template='
+flush ruleset
+
+table inet filter {
+	counter test {
+		packets 0 bytes 0
+	}
+
+	set test {
+		type ${type_spec}
+		counter
+		flags interval,timeout
+	}
+
+	chain input {
+		type filter hook prerouting priority 0; policy accept;
+		${chain_spec} @test counter name \"test\"
+	}
+}
+
+table netdev perf {
+	counter test {
+		packets 0 bytes 0
+	}
+
+	counter match {
+		packets 0 bytes 0
+	}
+
+	set test {
+		type ${type_spec}
+		flags interval
+	}
+
+	set norange {
+		type ${type_spec}
+	}
+
+	set noconcat {
+		type ${type_spec%% *}
+		flags interval
+	}
+
+	chain test {
+		type filter hook ingress device veth_a priority 0;
+	}
+}
+'
+
+err_buf=
+info_buf=
+
+# Append string to error buffer
+err() {
+	err_buf="${err_buf}${1}
+"
+}
+
+# Append string to information buffer
+info() {
+	info_buf="${info_buf}${1}
+"
+}
+
+# Flush error buffer to stdout
+err_flush() {
+	printf "%s" "${err_buf}"
+	err_buf=
+}
+
+# Flush information buffer to stdout
+info_flush() {
+	printf "%s" "${info_buf}"
+	info_buf=
+}
+
+# Setup veth pair: this namespace receives traffic, B generates it
+setup_veth() {
+	ip netns add B
+	ip link add veth_a type veth peer name veth_b || return 1
+
+	ip link set veth_a up
+	ip link set veth_b netns B
+
+	ip -n B link set veth_b up
+
+	ip addr add dev veth_a 10.0.0.1
+	ip route add default dev veth_a
+
+	ip -6 addr add fe80::1/64 dev veth_a nodad
+	ip -6 addr add 2001:db8::1/64 dev veth_a nodad
+	ip -6 route add default dev veth_a
+
+	ip -n B route add default dev veth_b
+
+	ip -6 -n B addr add fe80::2/64 dev veth_b nodad
+	ip -6 -n B addr add 2001:db8::2/64 dev veth_b nodad
+	ip -6 -n B route add default dev veth_b
+
+	B() {
+		ip netns exec B "$@" >/dev/null 2>&1
+	}
+}
+
+# Fill in set template and initialise set
+setup_set() {
+	eval "echo \"${set_template}\"" | nft -f -
+}
+
+# Check that at least one of the needed tools is available
+check_tools() {
+	[ -z "${tools}" ] && return 0
+
+	__tools=
+	for tool in ${tools}; do
+		__tools="${__tools} ${tool}"
+
+		command -v "${tool}" >/dev/null && return 0
+	done
+	err "need one of:${__tools}, skipping" && return 1
+}
+
+# Set up function to send ICMP packets
+setup_send_icmp() {
+	send_icmp() {
+		B ping -c1 -W1 "${dst_addr4}" >/dev/null 2>&1
+	}
+}
+
+# Set up function to send ICMPv6 packets
+setup_send_icmp6() {
+	if command -v ping6 >/dev/null; then
+		send_icmp6() {
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+			B ping6 -q -c1 -W1 "${dst_addr6}"
+		}
+	else
+		send_icmp6() {
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+			B ping -q -6 -c1 -W1 "${dst_addr6}"
+		}
+	fi
+}
+
+# Set up function to send single UDP packets on IPv4
+setup_send_udp() {
+	if command -v sendip >/dev/null; then
+		send_udp() {
+			[ -n "${src_port}" ] && src_port="-us ${src_port}"
+			[ -n "${dst_port}" ] && dst_port="-ud ${dst_port}"
+			[ -n "${src_addr4}" ] && src_addr4="-is ${src_addr4}"
+
+			# shellcheck disable=SC2086 # sendip needs split options
+			B sendip -p ipv4 -p udp ${src_addr4} ${src_port} \
+						${dst_port} "${dst_addr4}"
+
+			src_port=
+			dst_port=
+			src_addr4=
+		}
+	elif command -v socat -v >/dev/null; then
+		send_udp() {
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}" dev veth_b
+				__socatbind=",bind=${src_addr4}"
+				if [ -n "${src_port}" ];then
+					__socatbind="${__socatbind}:${src_port}"
+				fi
+			fi
+
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+			[ -z "${dst_port}" ] && dst_port=12345
+
+			echo "test4" | B socat -t 0.01 STDIN UDP4-DATAGRAM:"$dst_addr4":"$dst_port""${__socatbind}"
+
+			src_addr4=
+			src_port=
+		}
+	elif [ -z "$(bash -c 'type -p')" ]; then
+		send_udp() {
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+				B ip route add default dev veth_b
+			fi
+
+			B bash -c "echo > /dev/udp/${dst_addr4}/${dst_port}"
+
+			if [ -n "${src_addr4}" ]; then
+				B ip addr del "${src_addr4}/16" dev veth_b
+			fi
+			src_addr4=
+		}
+	else
+		return 1
+	fi
+}
+
+# Set up function to send single UDP packets on IPv6
+setup_send_udp6() {
+	if command -v sendip >/dev/null; then
+		send_udp6() {
+			[ -n "${src_port}" ] && src_port="-us ${src_port}"
+			[ -n "${dst_port}" ] && dst_port="-ud ${dst_port}"
+			if [ -n "${src_addr6}" ]; then
+				src_addr6="-6s ${src_addr6}"
+			else
+				src_addr6="-6s 2001:db8::2"
+			fi
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			B sendip -p ipv6 -p udp ${src_addr6} ${src_port} \
+						${dst_port} "${dst_addr6}"
+
+			src_port=
+			dst_port=
+			src_addr6=
+		}
+	elif command -v socat -v >/dev/null; then
+		send_udp6() {
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+
+			__socatbind6=
+
+			if [ -n "${src_addr6}" ]; then
+				B ip addr add "${src_addr6}" dev veth_b nodad
+
+				__socatbind6=",bind=[${src_addr6}]"
+
+				if [ -n "${src_port}" ] ;then
+					__socatbind6="${__socatbind6}:${src_port}"
+				fi
+			fi
+
+			echo "test6" | B socat -t 0.01 STDIN UDP6-DATAGRAM:["$dst_addr6"]:"$dst_port""${__socatbind6}"
+		}
+	elif [ -z "$(bash -c 'type -p')" ]; then
+		send_udp6() {
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+			B ip addr add "${src_addr6}" dev veth_b nodad
+			B bash -c "echo > /dev/udp/${dst_addr6}/${dst_port}"
+			ip -6 addr del "${dst_addr6}" dev veth_a 2>/dev/null
+		}
+	else
+		return 1
+	fi
+}
+
+listener_ready()
+{
+	port="$1"
+	ss -lnt -o "sport = :$port" | grep -q "$port"
+}
+
+# Set up function to send TCP traffic on IPv4
+setup_flood_tcp() {
+	if command -v iperf3 >/dev/null; then
+		flood_tcp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+				src_addr4="-B ${src_addr4}"
+			else
+				B ip addr add dev veth_b 10.0.0.2
+				src_addr4="-B 10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_port="--cport ${src_port}"
+			fi
+			B ip route add default dev veth_b 2>/dev/null
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf3 -s -DB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf3 -c "${dst_addr4}" ${dst_port} ${src_port} \
+				${src_addr4} -l16 -t 1000
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	elif command -v iperf >/dev/null; then
+		flood_tcp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+				src_addr4="-B ${src_addr4}"
+			else
+				B ip addr add dev veth_b 10.0.0.2 2>/dev/null
+				src_addr4="-B 10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_addr4="${src_addr4}:${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf -s -DB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf -c "${dst_addr4}" ${dst_port} ${src_addr4} \
+				-l20 -t 1000
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	elif command -v netperf >/dev/null; then
+		flood_tcp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+			else
+				B ip addr add dev veth_b 10.0.0.2
+				src_addr4="10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				dst_port="${dst_port},${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			netserver -4 ${dst_port} -L "${dst_addr4}" \
+				>/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "${n_port}"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B netperf -4 -H "${dst_addr4}" ${dst_port} \
+				-L "${src_addr4}" -l 1000 -t TCP_STREAM
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	else
+		return 1
+	fi
+}
+
+# Set up function to send TCP traffic on IPv6
+setup_flood_tcp6() {
+	if command -v iperf3 >/dev/null; then
+		flood_tcp6() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr6}" ]; then
+				B ip addr add "${src_addr6}" dev veth_b nodad
+				src_addr6="-B ${src_addr6}"
+			else
+				src_addr6="-B 2001:db8::2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_port="--cport ${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf3 -s -DB "${dst_addr6}" ${dst_port} >/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "${n_port}"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf3 -c "${dst_addr6}" ${dst_port} \
+				${src_port} ${src_addr6} -l16 -t 1000
+
+			src_addr6=
+			src_port=
+			dst_port=
+		}
+	elif command -v iperf >/dev/null; then
+		flood_tcp6() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr6}" ]; then
+				B ip addr add "${src_addr6}" dev veth_b nodad
+				src_addr6="-B ${src_addr6}"
+			else
+				src_addr6="-B 2001:db8::2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_addr6="${src_addr6}:${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf -s -VDB "${dst_addr6}" ${dst_port} >/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf -c "${dst_addr6}" -V ${dst_port} \
+				${src_addr6} -l1 -t 1000
+
+			src_addr6=
+			src_port=
+			dst_port=
+		}
+	elif command -v netperf >/dev/null; then
+		flood_tcp6() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr6}" ]; then
+				B ip addr add "${src_addr6}" dev veth_b nodad
+			else
+				src_addr6="2001:db8::2"
+			fi
+			if [ -n "${src_port}" ]; then
+				dst_port="${dst_port},${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip -6 addr add "${dst_addr6}" dev veth_a nodad \
+				2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			netserver -6 ${dst_port} -L "${dst_addr6}" \
+				>/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B netperf -6 -H "${dst_addr6}" ${dst_port} \
+				-L "${src_addr6}" -l 1000 -t TCP_STREAM
+
+			src_addr6=
+			src_port=
+			dst_port=
+		}
+	else
+		return 1
+	fi
+}
+
+# Set up function to send UDP traffic on IPv4
+setup_flood_udp() {
+	if command -v iperf3 >/dev/null; then
+		flood_udp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+				src_addr4="-B ${src_addr4}"
+			else
+				B ip addr add dev veth_b 10.0.0.2 2>/dev/null
+				src_addr4="-B 10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_port="--cport ${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf3 -s -DB "${dst_addr4}" ${dst_port}
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf3 -u -c "${dst_addr4}" -Z -b 100M -l16 -t1000 \
+				${dst_port} ${src_port} ${src_addr4}
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	elif command -v iperf >/dev/null; then
+		flood_udp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+				src_addr4="-B ${src_addr4}"
+			else
+				B ip addr add dev veth_b 10.0.0.2
+				src_addr4="-B 10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				src_addr4="${src_addr4}:${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			iperf -u -sDB "${dst_addr4}" ${dst_port} >/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B iperf -u -c "${dst_addr4}" -b 100M -l1 -t1000 \
+				${dst_port} ${src_addr4}
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	elif command -v netperf >/dev/null; then
+		flood_udp() {
+			local n_port="${dst_port}"
+			[ -n "${dst_port}" ] && dst_port="-p ${dst_port}"
+			if [ -n "${src_addr4}" ]; then
+				B ip addr add "${src_addr4}/16" dev veth_b
+			else
+				B ip addr add dev veth_b 10.0.0.2
+				src_addr4="10.0.0.2"
+			fi
+			if [ -n "${src_port}" ]; then
+				dst_port="${dst_port},${src_port}"
+			fi
+			B ip route add default dev veth_b
+			ip addr add "${dst_addr4}" dev veth_a 2>/dev/null
+
+			# shellcheck disable=SC2086 # this needs split options
+			netserver -4 ${dst_port} -L "${dst_addr4}" \
+				>/dev/null 2>&1
+			busywait "$BUSYWAIT_TIMEOUT" listener_ready "$n_port"
+
+			# shellcheck disable=SC2086 # this needs split options
+			B netperf -4 -H "${dst_addr4}" ${dst_port} \
+				-L "${src_addr4}" -l 1000 -t UDP_STREAM
+
+			src_addr4=
+			src_port=
+			dst_port=
+		}
+	else
+		return 1
+	fi
+}
+
+# Find pktgen script and set up function to start pktgen injection
+setup_perf() {
+	for pktgen_script_path in ${PKTGEN_SCRIPT_PATHS} __notfound; do
+		command -v "${pktgen_script_path}" >/dev/null && break
+	done
+	[ "${pktgen_script_path}" = "__notfound" ] && return 1
+
+	perf_ipv4() {
+		${pktgen_script_path} -s80 \
+			-i veth_a -d "${dst_addr4}" -p "${dst_port}" \
+			-m "${dst_mac}" \
+			-t $(($(nproc) / 5 + 1)) -b10000 -n0 2>/dev/null &
+		perf_pid=$!
+	}
+	perf_ipv6() {
+		IP6=6 ${pktgen_script_path} -s100 \
+			-i veth_a -d "${dst_addr6}" -p "${dst_port}" \
+			-m "${dst_mac}" \
+			-t $(($(nproc) / 5 + 1)) -b10000 -n0 2>/dev/null &
+		perf_pid=$!
+	}
+}
+
+# Clean up before each test
+cleanup() {
+	nft reset counter inet filter test	>/dev/null 2>&1
+	nft flush ruleset			>/dev/null 2>&1
+	ip link del dummy0			2>/dev/null
+	ip route del default			2>/dev/null
+	ip -6 route del default			2>/dev/null
+	ip netns pids B				2>/dev/null | xargs kill 2>/dev/null
+	ip netns del B				2>/dev/null
+	ip link del veth_a			2>/dev/null
+	timeout=
+	killall iperf3				2>/dev/null
+	killall iperf				2>/dev/null
+	killall netperf				2>/dev/null
+	killall netserver			2>/dev/null
+}
+
+cleanup_exit() {
+	cleanup
+	rm -f "$tmp"
+}
+
+# Entry point for setup functions
+setup() {
+	if [ "$(id -u)" -ne 0 ]; then
+		echo "  need to run as root"
+		exit ${ksft_skip}
+	fi
+
+	cleanup
+	check_tools || return 1
+	for arg do
+		if ! eval setup_"${arg}"; then
+			err "  ${arg} not supported"
+			return 1
+		fi
+	done
+}
+
+# Format integer into IPv4 address, summing 10.0.0.5 (arbitrary) to it
+format_addr4() {
+	a=$((${1} + 16777216 * 10 + 5))
+	printf "%i.%i.%i.%i"						\
+	       "$((a / 16777216))" "$((a % 16777216 / 65536))"	\
+	       "$((a % 65536 / 256))" "$((a % 256))"
+}
+
+# Format integer into IPv6 address, summing 2001:db8:: to it
+format_addr6() {
+	printf "2001:db8::%04x:%04x" "$((${1} / 65536))" "$((${1} % 65536))"
+}
+
+# Format integer into EUI-48 address, summing 00:01:00:00:00:00 to it
+format_mac() {
+	printf "00:01:%02x:%02x:%02x:%02x" \
+	       "$((${1} / 16777216))" "$((${1} % 16777216 / 65536))"	\
+	       "$((${1} % 65536 / 256))" "$((${1} % 256))"
+}
+
+# Format integer into port, avoid 0 port
+format_port() {
+	printf "%i" "$((${1} % 65534 + 1))"
+}
+
+# Drop suffixed '6' from L4 protocol, if any
+format_proto() {
+	printf "%s" "${proto}" | tr -d 6
+}
+
+# Format destination and source fields into nft concatenated type
+format() {
+	__start=
+	__end=
+	__expr="{ "
+
+	for f in ${dst}; do
+		[ "${__expr}" != "{ " ] && __expr="${__expr} . "
+
+		__start="$(eval format_"${f}" "${start}")"
+		__end="$(eval format_"${f}" "${end}")"
+
+		if [ "${f}" = "proto" ]; then
+			__expr="${__expr}${__start}"
+		else
+			__expr="${__expr}${__start}-${__end}"
+		fi
+	done
+	for f in ${src}; do
+		[ "${__expr}" != "{ " ] && __expr="${__expr} . "
+
+		__start="$(eval format_"${f}" "${srcstart}")"
+		__end="$(eval format_"${f}" "${srcend}")"
+
+		if [ "${f}" = "proto" ]; then
+			__expr="${__expr}${__start}"
+		else
+			__expr="${__expr}${__start}-${__end}"
+		fi
+	done
+
+	if [ -n "${timeout}" ]; then
+		echo "${__expr} timeout ${timeout}s }"
+	else
+		echo "${__expr} }"
+	fi
+}
+
+# Format destination and source fields into nft type, start element only
+format_norange() {
+	__expr="{ "
+
+	for f in ${dst}; do
+		[ "${__expr}" != "{ " ] && __expr="${__expr} . "
+
+		__expr="${__expr}$(eval format_"${f}" "${start}")"
+	done
+	for f in ${src}; do
+		__expr="${__expr} . $(eval format_"${f}" "${start}")"
+	done
+
+	echo "${__expr} }"
+}
+
+# Format first destination field into nft type
+format_noconcat() {
+	for f in ${dst}; do
+		__start="$(eval format_"${f}" "${start}")"
+		__end="$(eval format_"${f}" "${end}")"
+
+		if [ "${f}" = "proto" ]; then
+			echo "{ ${__start} }"
+		else
+			echo "{ ${__start}-${__end} }"
+		fi
+		return
+	done
+}
+
+# Add single entry to 'test' set in 'inet filter' table
+add() {
+	if ! nft add element inet filter test "${1}"; then
+		err "Failed to add ${1} given ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+# Format and output entries for sets in 'netdev perf' table
+add_perf() {
+	if [ "${1}" = "test" ]; then
+		echo "add element netdev perf test $(format)"
+	elif [ "${1}" = "norange" ]; then
+		echo "add element netdev perf norange $(format_norange)"
+	elif [ "${1}" = "noconcat" ]; then
+		echo "add element netdev perf noconcat $(format_noconcat)"
+	fi
+}
+
+# Add single entry to 'norange' set in 'netdev perf' table
+add_perf_norange() {
+	if ! nft add element netdev perf norange "${1}"; then
+		err "Failed to add ${1} given ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+# Add single entry to 'noconcat' set in 'netdev perf' table
+add_perf_noconcat() {
+	if ! nft add element netdev perf noconcat "${1}"; then
+		err "Failed to add ${1} given ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+# Delete single entry from set
+del() {
+	if ! nft delete element inet filter test "${1}"; then
+		err "Failed to delete ${1} given ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+# Return packet count for elem $1 from 'test' counter in 'inet filter' table
+count_packets() {
+	found=0
+	for token in $(nft reset element inet filter test "${1}" ); do
+		[ ${found} -eq 1 ] && echo "${token}" && return
+		[ "${token}" = "packets" ] && found=1
+	done
+}
+
+# Return packet count from 'test' counter in 'inet filter' table
+count_packets_nomatch() {
+	found=0
+	for token in $(nft list counter inet filter test); do
+		[ ${found} -eq 1 ] && echo "${token}" && return
+		[ "${token}" = "packets" ] && found=1
+	done
+}
+
+# Return packet count from 'test' counter in 'netdev perf' table
+count_perf_packets() {
+	found=0
+	for token in $(nft list counter netdev perf test); do
+		[ ${found} -eq 1 ] && echo "${token}" && return
+		[ "${token}" = "packets" ] && found=1
+	done
+}
+
+# Set MAC addresses, send traffic according to specifier
+flood() {
+	ip link set veth_a address "$(format_mac "${1}")"
+	ip -n B link set veth_b address "$(format_mac "${2}")"
+
+	for f in ${dst}; do
+		eval dst_"$f"=\$\(format_\$f "${1}"\)
+	done
+	for f in ${src}; do
+		eval src_"$f"=\$\(format_\$f "${2}"\)
+	done
+	eval flood_\$proto
+}
+
+# Set MAC addresses, start pktgen injection
+perf() {
+	dst_mac="$(format_mac "${1}")"
+	ip link set veth_a address "${dst_mac}"
+
+	for f in ${dst}; do
+		eval dst_"$f"=\$\(format_\$f "${1}"\)
+	done
+	for f in ${src}; do
+		eval src_"$f"=\$\(format_\$f "${2}"\)
+	done
+	eval perf_\$perf_proto
+}
+
+# Set MAC addresses, send single packet, check that it matches, reset counter
+send_match() {
+	local elem="$1"
+
+	shift
+
+	ip link set veth_a address "$(format_mac "${1}")"
+	ip -n B link set veth_b address "$(format_mac "${2}")"
+
+	for f in ${dst}; do
+		eval dst_"$f"=\$\(format_\$f "${1}"\)
+	done
+	for f in ${src}; do
+		eval src_"$f"=\$\(format_\$f "${2}"\)
+	done
+	eval send_\$proto
+	if [ "$(count_packets "$elem")" != "1" ]; then
+		err "${proto} packet to:"
+		err "  $(for f in ${dst}; do
+			 eval format_\$f "${1}"; printf ' '; done)"
+		err "from:"
+		err "  $(for f in ${src}; do
+			 eval format_\$f "${2}"; printf ' '; done)"
+		err "should have matched ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+	nft reset counter inet filter test >/dev/null
+}
+
+# Set MAC addresses, send single packet, check that it doesn't match
+send_nomatch() {
+	ip link set veth_a address "$(format_mac "${1}")"
+	ip -n B link set veth_b address "$(format_mac "${2}")"
+
+	for f in ${dst}; do
+		eval dst_"$f"=\$\(format_\$f "${1}"\)
+	done
+	for f in ${src}; do
+		eval src_"$f"=\$\(format_\$f "${2}"\)
+	done
+	eval send_\$proto
+	if [ "$(count_packets_nomatch)" != "0" ]; then
+		err "${proto} packet to:"
+		err "  $(for f in ${dst}; do
+			 eval format_\$f "${1}"; printf ' '; done)"
+		err "from:"
+		err "  $(for f in ${src}; do
+			 eval format_\$f "${2}"; printf ' '; done)"
+		err "should not have matched ruleset:"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+maybe_send_nomatch() {
+	local elem="$1"
+	local what="$4"
+
+	[ $((RANDOM%20)) -gt 0 ] && return
+
+	dst_addr4="$2"
+	dst_port="$3"
+	send_udp
+
+	if [ "$(count_packets_nomatch)" != "0" ]; then
+		err "Packet to $dst_addr4:$dst_port did match $what"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+}
+
+maybe_send_match() {
+	local elem="$1"
+	local what="$4"
+
+	[ $((RANDOM%20)) -gt 0 ] && return
+
+	dst_addr4="$2"
+	dst_port="$3"
+	send_udp
+
+	if [ "$(count_packets "{ $elem }")" != "1" ]; then
+		err "Packet to $dst_addr4:$dst_port did not match $what"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+	nft reset counter inet filter test >/dev/null
+	nft reset element inet filter test "{ $elem }" >/dev/null
+}
+
+# Correctness test template:
+# - add ranged element, check that packets match it
+# - check that packets outside range don't match it
+# - remove some elements, check that packets don't match anymore
+test_correctness_main() {
+	range_size=1
+
+	send_nomatch $((end + 1)) $((end + 1 + src_delta)) || return 1
+
+	for i in $(seq "${start}" $((start + count))); do
+		local elem=""
+
+		end=$((start + range_size))
+
+		# Avoid negative or zero-sized port ranges
+		if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+			start=${end}
+			end=$((end + 1))
+		fi
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		elem="$(format)"
+		add "$elem" || return 1
+		for j in $(seq "$start" $((range_size / 2 + 1)) ${end}); do
+			send_match "$elem" "${j}" $((j + src_delta)) || return 1
+		done
+		send_nomatch $((end + 1)) $((end + 1 + src_delta)) || return 1
+
+		# Delete elements now and then
+		if [ $((i % 3)) -eq 0 ]; then
+			del "$elem" || return 1
+			for j in $(seq "$start" \
+				   $((range_size / 2 + 1)) ${end}); do
+				send_nomatch "${j}" $((j + src_delta)) \
+					|| return 1
+			done
+		fi
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+}
+
+test_correctness() {
+	setup veth send_"${proto}" set || return ${ksft_skip}
+
+	test_correctness_main
+}
+
+# Repeat the correctness tests, but add extra non-matching entries.
+# This exercises the more compact '4 bit group' representation that
+# gets picked when the default 8-bit representation exceed
+# NFT_PIPAPO_LT_SIZE_HIGH bytes of memory.
+# See usage of NFT_PIPAPO_LT_SIZE_HIGH in pipapo_lt_bits_adjust().
+#
+# The format() helper is way too slow when generating lots of
+# entries so its not used here.
+test_correctness_large() {
+	setup veth send_"${proto}" set || return ${ksft_skip}
+	# number of dummy (filler) entries to add.
+	local dcount=16385
+
+	(
+	echo -n "add element inet filter test { "
+
+	case "$type_spec" in
+	"ether_addr . ipv4_addr")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_mac $((1000000 + i))
+			printf ". 172.%i.%i.%i " $((RANDOM%256)) $((RANDOM%256)) $((i%256))
+		done
+		;;
+	"inet_proto . ipv6_addr")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "%i . " $((RANDOM%256))
+			format_addr6 $((1000000 + i))
+		done
+		;;
+	"inet_service . inet_proto")
+		# smaller key sizes, need more entries to hit the
+		# 4-bit threshold.
+		dcount=65536
+		for i in $(seq 1 $dcount); do
+			local proto=$((RANDOM%256))
+
+			# Test uses UDP to match, as it also fails when matching
+			# an entry that doesn't exist, so skip 'udp' entries
+			# to not trigger a wrong failure.
+			[ $proto -eq 17 ] && proto=18
+			[ $i -gt 1 ] && echo ", "
+			printf "%i . %i " $(((i%65534) + 1)) $((proto))
+		done
+		;;
+	"inet_service . ipv4_addr")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "%i . 172.%i.%i.%i " $(((RANDOM%65534) + 1)) $((RANDOM%256)) $((RANDOM%256)) $((i%256))
+		done
+		;;
+	"ipv4_addr . ether_addr")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . " $((RANDOM%256)) $((RANDOM%256)) $((i%256))
+			format_mac $((1000000 + i))
+		done
+		;;
+	"ipv4_addr . inet_service")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . %i" $((RANDOM%256)) $((RANDOM%256)) $((i%256)) $(((RANDOM%65534) + 1))
+		done
+		;;
+	"ipv4_addr . inet_service . ether_addr . inet_proto . ipv4_addr")
+		dcount=65536
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . %i . " $((RANDOM%256)) $((RANDOM%256)) $((i%256)) $(((RANDOM%65534) + 1))
+			format_mac $((1000000 + i))
+			printf ". %i . 192.168.%i.%i" $((RANDOM%256)) $((RANDOM%256)) $((i%256))
+		done
+		;;
+	"ipv4_addr . inet_service . inet_proto")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . %i . %i " $((RANDOM%256)) $((RANDOM%256)) $((i%256)) $(((RANDOM%65534) + 1)) $((RANDOM%256))
+		done
+		;;
+	"ipv4_addr . inet_service . inet_proto . ipv4_addr")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . %i . %i . 192.168.%i.%i " $((RANDOM%256)) $((RANDOM%256)) $((i%256)) $(((RANDOM%65534) + 1)) $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256))
+		done
+		;;
+	"ipv4_addr . inet_service . ipv4_addr")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			printf "172.%i.%i.%i . %i . 192.168.%i.%i " $((RANDOM%256)) $((RANDOM%256)) $((i%256)) $(((RANDOM%65534) + 1)) $((RANDOM%256)) $((RANDOM%256))
+		done
+		;;
+	"ipv6_addr . ether_addr")
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_addr6 $((i + 1000000))
+			echo -n " . "
+			format_mac $((1000000 + i))
+		done
+		;;
+	"ipv6_addr . inet_service")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_addr6 $((i + 1000000))
+			echo -n " .  $(((RANDOM%65534) + 1))"
+		done
+		;;
+	"ipv6_addr . inet_service . ether_addr")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_addr6 $((i + 1000000))
+			echo -n " .  $(((RANDOM%65534) + 1)) . "
+			format_mac $((i + 1000000))
+		done
+		;;
+	"ipv6_addr . inet_service . ether_addr . inet_proto")
+		dcount=65536
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_addr6 $((i + 1000000))
+			echo -n " .  $(((RANDOM%65534) + 1)) . "
+			format_mac $((i + 1000000))
+			echo -n " .  $((RANDOM%256))"
+		done
+		;;
+	"ipv6_addr . inet_service . ipv6_addr . inet_service")
+		dcount=32768
+		for i in $(seq 1 $dcount); do
+			[ $i -gt 1 ] && echo ", "
+			format_addr6 $((i + 1000000))
+			echo -n " .  $(((RANDOM%65534) + 1)) . "
+			format_addr6 $((i + 2123456))
+			echo -n " .  $((RANDOM%256))"
+		done
+		;;
+	*)
+		"Unhandled $type_spec"
+		return 1
+	esac
+	echo -n "}"
+
+	) | nft -f - || return 1
+
+	test_correctness_main
+}
+
+# Concurrency test template:
+# - add all the elements
+# - start a thread for each physical thread that:
+#   - adds all the elements
+#   - flushes the set
+#   - adds all the elements
+#   - flushes the entire ruleset
+#   - adds the set back
+#   - adds all the elements
+#   - delete all the elements
+test_concurrency() {
+	proto=${flood_proto}
+	tools=${flood_tools}
+	chain_spec=${flood_spec}
+	setup veth flood_"${proto}" set || return ${ksft_skip}
+
+	range_size=1
+	cstart=${start}
+	flood_pids=
+	for i in $(seq "$start" $((start + count))); do
+		end=$((start + range_size))
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		add "$(format)" || return 1
+
+		flood "${i}" $((i + src_delta)) & flood_pids="${flood_pids} $!"
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+
+	sleep $((RANDOM%10))
+
+	pids=
+	for c in $(seq 1 "$(nproc)"); do (
+		for r in $(seq 1 "${race_repeat}"); do
+			range_size=1
+
+			# $start needs to be local to this subshell
+			# shellcheck disable=SC2030
+			start=${cstart}
+			for i in $(seq "$start" $((start + count))); do
+				end=$((start + range_size))
+				srcstart=$((start + src_delta))
+				srcend=$((end + src_delta))
+
+				add "$(format)" 2>/dev/null
+
+				range_size=$((range_size + 1))
+				start=$((end + range_size))
+			done
+
+			nft flush inet filter test 2>/dev/null
+
+			range_size=1
+			start=${cstart}
+			for i in $(seq "$start" $((start + count))); do
+				end=$((start + range_size))
+				srcstart=$((start + src_delta))
+				srcend=$((end + src_delta))
+
+				add "$(format)" 2>/dev/null
+
+				range_size=$((range_size + 1))
+				start=$((end + range_size))
+			done
+
+			nft flush ruleset
+			setup set 2>/dev/null
+
+			range_size=1
+			start=${cstart}
+			for i in $(seq "$start" $((start + count))); do
+				end=$((start + range_size))
+				srcstart=$((start + src_delta))
+				srcend=$((end + src_delta))
+
+				add "$(format)" 2>/dev/null
+
+				range_size=$((range_size + 1))
+				start=$((end + range_size))
+			done
+
+			range_size=1
+			start=${cstart}
+			for i in $(seq "$start" $((start + count))); do
+				end=$((start + range_size))
+				srcstart=$((start + src_delta))
+				srcend=$((end + src_delta))
+
+				del "$(format)" 2>/dev/null
+
+				range_size=$((range_size + 1))
+				start=$((end + range_size))
+			done
+		done
+	) & pids="${pids} $!"
+	done
+
+	# shellcheck disable=SC2046,SC2086 # word splitting wanted here
+	wait $(for pid in ${pids}; do echo ${pid}; done)
+	# shellcheck disable=SC2046,SC2086
+	kill $(for pid in ${flood_pids}; do echo ${pid}; done) 2>/dev/null
+	# shellcheck disable=SC2046,SC2086
+	wait $(for pid in ${flood_pids}; do echo ${pid}; done) 2>/dev/null
+
+	return 0
+}
+
+# Timeout test template:
+# - add all the elements with 3s timeout while checking that packets match
+# - wait 3s after the last insertion, check that packets don't match any entry
+test_timeout() {
+	setup veth send_"${proto}" set || return ${ksft_skip}
+
+	timeout=3
+
+	[ "$KSFT_MACHINE_SLOW" = "yes" ] && timeout=8
+
+	range_size=1
+	for i in $(seq "$start" $((start + count))); do
+		local elem=""
+
+		end=$((start + range_size))
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		elem="$(format)"
+		add "$elem" || return 1
+
+		for j in $(seq "$start" $((range_size / 2 + 1)) ${end}); do
+			send_match "$elem" "${j}" $((j + src_delta)) || return 1
+		done
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+	sleep $timeout
+	for i in $(seq "$start" $((start + count))); do
+		end=$((start + range_size))
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		for j in $(seq "$start" $((range_size / 2 + 1)) ${end}); do
+			send_nomatch "${j}" $((j + src_delta)) || return 1
+		done
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+}
+
+# Performance test template:
+# - add concatenated ranged entries
+# - add non-ranged concatenated entries (for hash set matching rate baseline)
+# - add ranged entries with first field only (for rbhash baseline)
+# - start pktgen injection directly on device rx path of this namespace
+# - measure drop only rate, hash and rbtree baselines, then matching rate
+test_performance() {
+	chain_spec=${perf_spec}
+	dst="${perf_dst}"
+	src="${perf_src}"
+	setup veth perf set || return ${ksft_skip}
+
+	first=${start}
+	range_size=1
+	for set in test norange noconcat; do
+		start=${first}
+		for i in $(seq "$start" $((start + perf_entries))); do
+			end=$((start + range_size))
+			srcstart=$((start + src_delta))
+			srcend=$((end + src_delta))
+
+			if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+				start=${end}
+				end=$((end + 1))
+			elif [ "$start" -eq "$end" ]; then
+				end=$((start + 1))
+			fi
+
+			add_perf ${set}
+
+			start=$((end + range_size))
+		done > "${tmp}"
+		nft -f "${tmp}"
+	done
+
+	perf $((end - 1)) "$srcstart"
+
+	sleep 2
+
+	nft add rule netdev perf test counter name \"test\" drop
+	nft reset counter netdev perf test >/dev/null 2>&1
+	sleep "${perf_duration}"
+	pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+	info "    baseline (drop from netdev hook):            ${pps}pps"
+	handle="$(nft -a list chain netdev perf test | grep counter)"
+	handle="${handle##* }"
+	nft delete rule netdev perf test handle "${handle}"
+
+	nft add rule "netdev perf test ${chain_spec} @norange \
+		counter name \"test\" drop"
+	nft reset counter netdev perf test >/dev/null 2>&1
+	sleep "${perf_duration}"
+	pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+	info "    baseline hash (non-ranged entries):          ${pps}pps"
+	handle="$(nft -a list chain netdev perf test | grep counter)"
+	handle="${handle##* }"
+	nft delete rule netdev perf test handle "${handle}"
+
+	nft add rule "netdev perf test ${chain_spec%%. *} @noconcat \
+		counter name \"test\" drop"
+	nft reset counter netdev perf test >/dev/null 2>&1
+	sleep "${perf_duration}"
+	pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+	info "    baseline rbtree (match on first field only): ${pps}pps"
+	handle="$(nft -a list chain netdev perf test | grep counter)"
+	handle="${handle##* }"
+	nft delete rule netdev perf test handle "${handle}"
+
+	nft add rule "netdev perf test ${chain_spec} @test \
+		counter name \"test\" drop"
+	nft reset counter netdev perf test >/dev/null 2>&1
+	sleep "${perf_duration}"
+	pps="$(printf %10s $(($(count_perf_packets) / perf_duration)))"
+	p5="$(printf %5s "${perf_entries}")"
+	info "    set with ${p5} full, ranged entries:         ${pps}pps"
+	kill "${perf_pid}"
+}
+
+test_bug_flush_remove_add() {
+	rounds=100
+	[ "$KSFT_MACHINE_SLOW" = "yes" ] && rounds=10
+
+	set_cmd='{ set s { type ipv4_addr . inet_service; flags interval; }; }'
+	elem1='{ 10.0.0.1 . 22-25, 10.0.0.1 . 10-20 }'
+	elem2='{ 10.0.0.1 . 10-20, 10.0.0.1 . 22-25 }'
+	for i in $(seq 1 $rounds); do
+		nft add table t "$set_cmd"	|| return ${ksft_skip}
+		nft add element t s "$elem1"	2>/dev/null || return 1
+		nft flush set t s		2>/dev/null || return 1
+		nft add element t s "$elem2"	2>/dev/null || return 1
+	done
+	nft flush ruleset
+}
+
+# - add ranged element, check that packets match it
+# - reload the set, check packets still match
+test_bug_reload() {
+	setup veth send_"${proto}" set || return ${ksft_skip}
+	rstart=${start}
+
+	range_size=1
+	for i in $(seq "${start}" $((start + count))); do
+		end=$((start + range_size))
+
+		# Avoid negative or zero-sized port ranges
+		if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+			start=${end}
+			end=$((end + 1))
+		fi
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		add "$(format)" || return 1
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+
+	# check kernel does allocate pcpu sctrach map
+	# for reload with no elemet add/delete
+	( echo flush set inet filter test ;
+	  nft list set inet filter test ) | nft -f -
+
+	start=${rstart}
+	range_size=1
+
+	for i in $(seq "${start}" $((start + count))); do
+		end=$((start + range_size))
+
+		# Avoid negative or zero-sized port ranges
+		if [ $((end / 65534)) -gt $((start / 65534)) ]; then
+			start=${end}
+			end=$((end + 1))
+		fi
+		srcstart=$((start + src_delta))
+		srcend=$((end + src_delta))
+
+		for j in $(seq "$start" $((range_size / 2 + 1)) ${end}); do
+			send_match "$(format)" "${j}" $((j + src_delta)) || return 1
+		done
+
+		range_size=$((range_size + 1))
+		start=$((end + range_size))
+	done
+
+	nft flush ruleset
+}
+
+# - add ranged element, check that packets match it
+# - delete element again, check it is gone
+test_bug_net_port_proto_match() {
+	setup veth send_"${proto}" set || return ${ksft_skip}
+	rstart=${start}
+
+	range_size=1
+	for i in $(seq 1 10); do
+		for j in $(seq 1 20) ; do
+			local dport=$j
+
+			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
+
+			# too slow, do not test all addresses
+			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "before add" || return 1
+
+			nft "add element inet filter test { $elem }" || return 1
+
+			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "after add" || return 1
+
+			nft "get element inet filter test { $elem }" | grep -q "$elem"
+			if [ $? -ne 0 ];then
+				local got=$(nft "get element inet filter test { $elem }")
+				err "post-add: should have returned $elem but got $got"
+				return 1
+			fi
+
+			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "out-of-range" || return 1
+		done
+	done
+
+	# recheck after set was filled
+	for i in $(seq 1 10); do
+		for j in $(seq 1 20) ; do
+			local dport=$j
+
+			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
+
+			nft "get element inet filter test { $elem }" | grep -q "$elem"
+			if [ $? -ne 0 ];then
+				local got=$(nft "get element inet filter test { $elem }")
+				err "post-fill: should have returned $elem but got $got"
+				return 1
+			fi
+
+			maybe_send_match "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "recheck" || return 1
+			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d1" $((dport+1))) "recheck out-of-range" || return 1
+		done
+	done
+
+	# random del and re-fetch
+	for i in $(seq 1 10); do
+		for j in $(seq 1 20) ; do
+			local rnd=$((RANDOM%10))
+			local dport=$j
+			local got=""
+
+			elem=$(printf "10.%d.%d.0/24 . %d-%d0 . 6-17 " ${i} ${j} ${dport} "$((dport+1))")
+			if [ $rnd -gt 0 ];then
+				continue
+			fi
+
+			nft "delete element inet filter test { $elem }"
+			got=$(nft "get element inet filter test { $elem }" 2>/dev/null)
+			if [ $? -eq 0 ];then
+				err "post-delete: query for $elem returned $got instead of error."
+				return 1
+			fi
+
+			maybe_send_nomatch "$elem" $(printf "10.%d.%d.1" $i $j) $(printf "%d" $dport) "match after deletion" || return 1
+		done
+	done
+
+	nft flush ruleset
+}
+
+test_bug_avx2_mismatch()
+{
+	setup veth send_"${proto}" set || return ${ksft_skip}
+
+	local a1="fe80:dead:01ff:0a02:0b03:6007:8009:a001"
+	local a2="fe80:dead:01fe:0a02:0b03:6007:8009:a001"
+
+	nft "add element inet filter test { icmpv6 . $a1 }"
+
+	dst_addr6="$a2"
+	send_icmp6
+
+	if [ "$(count_packets "{ icmpv6 . $a1 }")" -gt "0" ]; then
+		err "False match for $a2"
+		return 1
+	fi
+}
+
+test_bug_doublecreate()
+{
+	local elements="1.2.3.4 . 1.2.4.1, 1.2.4.1 . 1.2.3.4"
+	local ret=1
+	local i
+
+	setup veth send_"${proto}" set || return ${ksft_skip}
+
+	add "{ $elements }" || return 1
+	# expected to work: 'add' on existing should be no-op.
+	add "{ $elements }" || return 1
+
+	# 'create' should return an error.
+	if nft create element inet filter test "{ $elements }" 2>/dev/null; then
+		err "Could create an existing element"
+		return 1
+	fi
+nft -f - <<EOF 2>/dev/null
+flush set inet filter test
+create element inet filter test { $elements }
+create element inet filter test { $elements }
+EOF
+	ret=$?
+	if [ $ret -eq 0 ]; then
+		err "Could create element twice in one transaction"
+		err "$(nft -a list ruleset)"
+		return 1
+	fi
+
+nft -f - <<EOF 2>/dev/null
+flush set inet filter test
+create element inet filter test { $elements }
+EOF
+	ret=$?
+	if [ $ret -ne 0 ]; then
+		err "Could not flush and re-create element in one transaction"
+		return 1
+	fi
+
+	return 0
+}
+
+test_reported_issues() {
+	eval test_bug_"${subtest}"
+}
+
+# Run everything in a separate network namespace
+[ "${1}" != "run" ] && { unshare -n "${0}" run; exit $?; }
+tmp="$(mktemp)"
+trap cleanup_exit EXIT
+
+# Entry point for test runs
+passed=0
+for name in ${TESTS}; do
+	printf "TEST: %s\n" "$(echo "$name" | tr '_' ' ')"
+	if [ "${name}" = "reported_issues" ]; then
+		SUBTESTS="${BUGS}"
+	else
+		SUBTESTS="${TYPES}"
+	fi
+
+	for subtest in ${SUBTESTS}; do
+		eval desc=\$TYPE_"${subtest}"
+		IFS='
+'
+		for __line in ${desc}; do
+			# shellcheck disable=SC2086
+			eval ${__line%%	*}=\"${__line##*	}\";
+		done
+		IFS=' 	
+'
+
+		if [ "${name}" = "concurrency" ] && \
+		   [ "${race_repeat}" = "0" ]; then
+			continue
+		fi
+		if [ "${name}" = "performance" ] && \
+		   [ "${perf_duration}" = "0" ]; then
+			continue
+		fi
+
+		[ "$KSFT_MACHINE_SLOW" = "yes" ] && count=1
+
+		printf "  %-32s  " "${display}"
+		tthen=$(date +%s)
+		eval test_"${name}"
+		ret=$?
+
+		tnow=$(date +%s)
+		printf "%5ds%-30s" $((tnow-tthen))
+
+		if [ $ret -eq 0 ]; then
+			printf "[ OK ]\n"
+			info_flush
+			passed=$((passed + 1))
+		elif [ $ret -eq 1 ]; then
+			printf "[FAIL]\n"
+			err_flush
+			exit 1
+		elif [ $ret -eq ${ksft_skip} ]; then
+			printf "[SKIP]\n"
+			err_flush
+		fi
+	done
+done
+
+[ ${passed} -eq 0 ] && exit ${ksft_skip} || exit 0
diff --git a/tools/testing/selftests/net/netfilter/nft_concat_range_perf.sh b/tools/testing/selftests/net/netfilter/nft_concat_range_perf.sh
new file mode 100755
index 000000000000..5d276995a5c5
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_concat_range_perf.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+
+source lib.sh
+
+[ "$KSFT_MACHINE_SLOW" = yes ] && exit ${ksft_skip}
+
+NFT_CONCAT_RANGE_TESTS="performance" exec ./nft_concat_range.sh
diff --git a/tools/testing/selftests/net/netfilter/nft_conntrack_helper.sh b/tools/testing/selftests/net/netfilter/nft_conntrack_helper.sh
new file mode 100755
index 000000000000..abcaa7337197
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_conntrack_helper.sh
@@ -0,0 +1,171 @@
+#!/bin/bash
+#
+# This tests connection tracking helper assignment:
+# 1. can attach ftp helper to a connection from nft ruleset.
+# 2. auto-assign still works.
+#
+# Kselftest framework requirement - SKIP code is 4.
+
+source lib.sh
+
+ret=0
+
+testipv6=1
+
+checktool "socat -h" "run test without socat"
+checktool "conntrack --version" "run test without conntrack"
+checktool "nft --version" "run test without nft"
+
+cleanup()
+{
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+
+	ip netns del "$ns1"
+	ip netns del "$ns2"
+}
+
+trap cleanup EXIT
+
+setup_ns ns1 ns2
+
+if ! ip link add veth0 netns "$ns1" type veth peer name veth0 netns "$ns2" > /dev/null 2>&1;then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+
+ip -net "$ns1" link set veth0 up
+ip -net "$ns2" link set veth0 up
+
+ip -net "$ns1" addr add 10.0.1.1/24 dev veth0
+ip -net "$ns1" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$ns2" addr add 10.0.1.2/24 dev veth0
+ip -net "$ns2" addr add dead:1::2/64 dev veth0 nodad
+
+load_ruleset_family() {
+	local family=$1
+	local ns=$2
+
+ip netns exec "$ns" nft -f - <<EOF
+table $family raw {
+	ct helper ftp {
+             type "ftp" protocol tcp
+        }
+	chain pre {
+		type filter hook prerouting priority 0; policy accept;
+		tcp dport 2121 ct helper set "ftp"
+	}
+	chain output {
+		type filter hook output priority 0; policy accept;
+		tcp dport 2121 ct helper set "ftp"
+	}
+}
+EOF
+	return $?
+}
+
+check_for_helper()
+{
+	local netns=$1
+	local message=$2
+	local port=$3
+
+	if echo "$message" |grep -q 'ipv6';then
+		local family="ipv6"
+	else
+		local family="ipv4"
+	fi
+
+	if ! ip netns exec "$netns" conntrack -L -f $family -p tcp --dport "$port" 2> /dev/null |grep -q 'helper=ftp';then
+		if [ "$autoassign" -eq 0 ] ;then
+			echo "FAIL: ${netns} did not show attached helper $message" 1>&2
+			ret=1
+		else
+			echo "PASS: ${netns} did not show attached helper $message" 1>&2
+		fi
+	else
+		if [ "$autoassign" -eq 0 ] ;then
+			echo "PASS: ${netns} connection on port $port has ftp helper attached" 1>&2
+		else
+			echo "FAIL: ${netns} connection on port $port has ftp helper attached" 1>&2
+			ret=1
+		fi
+	fi
+
+	return 0
+}
+
+listener_ready()
+{
+	ns="$1"
+	port="$2"
+	proto="$3"
+	ss -N "$ns" -lnt -o "sport = :$port" | grep -q "$port"
+}
+
+test_helper()
+{
+	local port=$1
+	local autoassign=$2
+
+	if [ "$autoassign" -eq 0 ] ;then
+		msg="set via ruleset"
+	else
+		msg="auto-assign"
+	fi
+
+	ip netns exec "$ns2" socat -t 3 -u -4 TCP-LISTEN:"$port",reuseaddr STDOUT > /dev/null &
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns2" "$port" "-4"
+
+	ip netns exec "$ns1" socat -u -4 STDIN TCP:10.0.1.2:"$port" < /dev/null > /dev/null
+
+	check_for_helper "$ns1" "ip $msg" "$port" "$autoassign"
+	check_for_helper "$ns2" "ip $msg" "$port" "$autoassign"
+
+	if [ $testipv6 -eq 0 ] ;then
+		return 0
+	fi
+
+	ip netns exec "$ns1" conntrack -F 2> /dev/null
+	ip netns exec "$ns2" conntrack -F 2> /dev/null
+
+	ip netns exec "$ns2" socat -t 3 -u -6 TCP-LISTEN:"$port",reuseaddr STDOUT > /dev/null &
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$ns2" "$port" "-6"
+
+	ip netns exec "$ns1" socat -t 3 -u -6 STDIN TCP:"[dead:1::2]":"$port" < /dev/null > /dev/null
+
+	check_for_helper "$ns1" "ipv6 $msg" "$port"
+	check_for_helper "$ns2" "ipv6 $msg" "$port"
+}
+
+if ! load_ruleset_family ip "$ns1"; then
+	echo "FAIL: ${ns1} cannot load ip ruleset" 1>&2
+	exit 1
+fi
+
+if ! load_ruleset_family ip6 "$ns1"; then
+	echo "SKIP: ${ns1} cannot load ip6 ruleset" 1>&2
+	testipv6=0
+fi
+
+if ! load_ruleset_family inet "${ns2}"; then
+	echo "SKIP: ${ns1} cannot load inet ruleset" 1>&2
+	if ! load_ruleset_family ip "${ns2}"; then
+		echo "FAIL: ${ns2} cannot load ip ruleset" 1>&2
+		exit 1
+	fi
+
+	if [ "$testipv6" -eq 1 ] ;then
+		if ! load_ruleset_family ip6 "$ns2"; then
+			echo "FAIL: ${ns2} cannot load ip6 ruleset" 1>&2
+			exit 1
+		fi
+	fi
+fi
+
+test_helper 2121 0
+ip netns exec "$ns1" sysctl -qe 'net.netfilter.nf_conntrack_helper=1'
+ip netns exec "$ns2" sysctl -qe 'net.netfilter.nf_conntrack_helper=1'
+test_helper 21 1
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_fib.sh b/tools/testing/selftests/net/netfilter/nft_fib.sh
new file mode 100755
index 000000000000..04544905c216
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_fib.sh
@@ -0,0 +1,850 @@
+#!/bin/bash
+#
+# This tests the fib expression.
+#
+# Kselftest framework requirement - SKIP code is 4.
+#
+#  10.0.1.99     10.0.1.1           10.0.2.1         10.0.2.99
+# dead:1::99    dead:1::1          dead:2::1        dead:2::99
+# ns1 <-------> [ veth0 ] nsrouter [veth1] <-------> ns2
+
+source lib.sh
+
+ret=0
+
+timeout=4
+
+log_netns=$(sysctl -n net.netfilter.nf_log_all_netns)
+
+cleanup()
+{
+	cleanup_all_ns
+
+	[ "$log_netns" -eq 0 ] && sysctl -q net.netfilter.nf_log_all_netns=$log_netns
+}
+
+checktool "nft --version" "run test without nft"
+
+setup_ns nsrouter ns1 ns2
+
+trap cleanup EXIT
+
+if dmesg | grep -q ' nft_rpfilter: ';then
+	dmesg -c | grep ' nft_rpfilter: '
+	echo "WARN: a previous test run has failed" 1>&2
+fi
+
+sysctl -q net.netfilter.nf_log_all_netns=1
+
+load_ruleset() {
+	local netns=$1
+
+ip netns exec "$netns" nft -f /dev/stdin <<EOF
+table inet filter {
+	chain prerouting {
+		type filter hook prerouting priority 0; policy accept;
+	        fib saddr . iif oif missing counter log prefix "$netns nft_rpfilter: " drop
+	}
+}
+EOF
+}
+
+load_input_ruleset() {
+	local netns=$1
+
+ip netns exec "$netns" nft -f /dev/stdin <<EOF
+table inet filter {
+	chain input {
+		type filter hook input priority 0; policy accept;
+	        fib saddr . iif oif missing counter log prefix "$netns nft_rpfilter: " drop
+	}
+}
+EOF
+}
+
+load_pbr_ruleset() {
+	local netns=$1
+
+ip netns exec "$netns" nft -f /dev/stdin <<EOF
+table inet filter {
+	chain forward {
+		type filter hook forward priority raw;
+		fib saddr . iif oif gt 0 accept
+		log drop
+	}
+}
+EOF
+}
+
+load_type_ruleset() {
+	local netns=$1
+
+	for family in ip ip6;do
+ip netns exec "$netns" nft -f /dev/stdin <<EOF
+table $family filter {
+	chain type_match_in {
+		fib daddr type local counter comment "daddr configured on other iface"
+		fib daddr . iif type local counter comment "daddr configured on iif"
+		fib daddr type unicast counter comment "daddr not local"
+		fib daddr . iif type unicast counter comment "daddr not configured on iif"
+	}
+
+	chain type_match_out {
+		fib daddr type unicast counter
+		fib daddr . oif type unicast counter
+		fib daddr type local counter
+		fib daddr . oif type local counter
+	}
+
+	chain prerouting {
+		type filter hook prerouting priority 0;
+		icmp type echo-request counter jump type_match_in
+		icmpv6 type echo-request counter jump type_match_in
+	}
+
+	chain input {
+		type filter hook input priority 0;
+		icmp type echo-request counter jump type_match_in
+		icmpv6 type echo-request counter jump type_match_in
+	}
+
+	chain forward {
+		type filter hook forward priority 0;
+		icmp type echo-request counter jump type_match_in
+		icmpv6 type echo-request counter jump type_match_in
+	}
+
+	chain output {
+		type filter hook output priority 0;
+		icmp type echo-request counter jump type_match_out
+		icmpv6 type echo-request counter jump type_match_out
+	}
+
+	chain postrouting {
+		type filter hook postrouting priority 0;
+		icmp type echo-request counter jump type_match_out
+		icmpv6 type echo-request counter jump type_match_out
+	}
+}
+EOF
+done
+}
+
+reload_type_ruleset() {
+	ip netns exec "$1" nft flush table ip filter
+	ip netns exec "$1" nft flush table ip6 filter
+	load_type_ruleset "$1"
+}
+
+check_fib_type_counter_family() {
+	local family="$1"
+	local want="$2"
+	local ns="$3"
+	local chain="$4"
+	local what="$5"
+	local errmsg="$6"
+
+	if ! ip netns exec "$ns" nft list chain "$family" filter "$chain" | grep "$what" | grep -q "packets $want";then
+		echo "Netns $ns $family fib type counter doesn't match expected packet count of $want for $what $errmsg" 1>&2
+		ip netns exec "$ns" nft list chain "$family" filter "$chain"
+		ret=1
+		return 1
+	fi
+
+	return 0
+}
+
+check_fib_type_counter() {
+	check_fib_type_counter_family "ip" "$@" || return 1
+	check_fib_type_counter_family "ip6" "$@" || return 1
+}
+
+load_ruleset_count() {
+	local netns=$1
+
+ip netns exec "$netns" nft -f /dev/stdin <<EOF
+table inet filter {
+	chain prerouting {
+		type filter hook prerouting priority 0; policy accept;
+		ip daddr 1.1.1.1 fib saddr . iif oif missing counter drop
+		ip6 daddr 1c3::c01d fib saddr . iif oif missing counter drop
+	}
+}
+EOF
+}
+
+check_drops() {
+	if dmesg | grep -q ' nft_rpfilter: ';then
+		dmesg | grep ' nft_rpfilter: '
+		echo "FAIL: rpfilter did drop packets"
+		ret=1
+		return 1
+	fi
+
+	return 0
+}
+
+check_fib_counter() {
+	local want=$1
+	local ns=$2
+	local address=$3
+
+	if ! ip netns exec "$ns" nft list table inet filter | grep 'fib saddr . iif' | grep "$address" | grep -q "packets $want";then
+		echo "Netns $ns fib counter doesn't match expected packet count of $want for $address" 1>&2
+		ip netns exec "$ns" nft list table inet filter
+		return 1
+	fi
+
+	if [ "$want" -gt 0 ]; then
+		echo "PASS: fib expression did drop packets for $address"
+	fi
+
+	return 0
+}
+
+load_ruleset "$nsrouter"
+load_ruleset "$ns1"
+load_ruleset "$ns2"
+
+if ! ip link add veth0 netns "$nsrouter" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1; then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+ip link add veth1 netns "$nsrouter" type veth peer name eth0 netns "$ns2"
+
+ip -net "$nsrouter" link set veth0 up
+ip -net "$nsrouter" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$nsrouter" link set veth1 up
+ip -net "$nsrouter" addr add 10.0.2.1/24 dev veth1
+ip -net "$nsrouter" addr add dead:2::1/64 dev veth1 nodad
+
+ip -net "$ns1" link set eth0 up
+ip -net "$ns2" link set eth0 up
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" route add default via dead:1::1
+
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns2" addr add dead:2::99/64 dev eth0 nodad
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns2" route add default via dead:2::1
+
+test_ping() {
+  local daddr4=$1
+  local daddr6=$2
+
+  if ! ip netns exec "$ns1" ping -c 1 -q "$daddr4" > /dev/null; then
+	check_drops
+	echo "FAIL: ${ns1} cannot reach $daddr4, ret $ret" 1>&2
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q "$daddr6" > /dev/null; then
+	check_drops
+	echo "FAIL: ${ns1} cannot reach $daddr6, ret $ret" 1>&2
+	return 1
+  fi
+
+  return 0
+}
+
+test_ping_unreachable() {
+  local daddr4=$1
+  local daddr6=$2
+
+  if ip netns exec "$ns1" ping -c 1 -W 0.1 -q "$daddr4" > /dev/null; then
+	echo "FAIL: ${ns1} could reach $daddr4" 1>&2
+	return 1
+  fi
+
+  if ip netns exec "$ns1" ping -c 1 -W 0.1 -q "$daddr6" > /dev/null; then
+	echo "FAIL: ${ns1} could reach $daddr6" 1>&2
+	return 1
+  fi
+
+  return 0
+}
+
+test_fib_type() {
+	local notice="$1"
+	local errmsg="addr-on-if"
+	local lret=0
+
+	if ! load_type_ruleset "$nsrouter";then
+		echo "SKIP: Could not load fib type ruleset"
+		[ $ret -eq 0 ] && ret=$ksft_skip
+		return
+	fi
+
+	# makes router receive packet for addresses configured on incoming
+	# interface.
+	test_ping 10.0.1.1 dead:1::1 || return 1
+
+	# expectation: triggers all 'local' in prerouting/input.
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr type local" "$errmsg" || lret=1
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr . iif type local" "$errmsg" || lret=1
+
+	reload_type_ruleset "$nsrouter"
+	# makes router receive packet for address configured on a different (but local)
+	# interface.
+	test_ping 10.0.2.1 dead:2::1 || return 1
+
+	# expectation: triggers 'unicast' in prerouting/input for daddr . iif and local for 'daddr'.
+	errmsg="addr-on-host"
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr type local" "$errmsg" || lret=1
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr . iif type unicast" "$errmsg" || lret=1
+
+	reload_type_ruleset "$nsrouter"
+	test_ping 10.0.2.99 dead:2::99 || return 1
+	errmsg="addr-on-otherhost"
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr type unicast" "$errmsg" || lret=1
+	check_fib_type_counter 2 "$nsrouter" "type_match_in" "fib daddr . iif type unicast" "$errmsg" || lret=1
+
+	if [ $lret -eq 0 ];then
+		echo "PASS: fib expression address types match ($notice)"
+	else
+		echo "FAIL: fib expression address types match ($notice)"
+		ret=1
+	fi
+}
+
+test_fib_vrf_dev_add_dummy()
+{
+	if ! ip -net "$nsrouter" link add dummy0 type dummy ;then
+		echo "SKIP: VRF tests: dummy device type not supported"
+		return 1
+	fi
+
+	if ! ip -net "$nsrouter" link add tvrf type vrf table 9876;then
+		echo "SKIP: VRF tests: vrf device type not supported"
+		return 1
+	fi
+
+	ip -net "$nsrouter" link set dummy0 master tvrf
+	ip -net "$nsrouter" link set dummy0 up
+	ip -net "$nsrouter" link set tvrf up
+}
+
+load_ruleset_vrf()
+{
+# Due to the many different possible combinations using named counters
+# or one-rule-per-expected-result is complex.
+#
+# Instead, add dynamic sets for the fib modes
+# (fib address type, fib output interface lookup .. ),
+# and then add the obtained fib results to them.
+#
+# The test is successful if the sets contain the expected results
+# and no unexpected extra entries existed.
+ip netns exec "$nsrouter" nft -f - <<EOF
+flush ruleset
+table inet t {
+	set fibif4 {
+		typeof meta iif . ip daddr . fib daddr oif
+		flags dynamic
+		counter
+	}
+
+	set fibif4iif {
+		typeof meta iif . ip daddr . fib daddr . iif oif
+		flags dynamic
+		counter
+	}
+
+	set fibif6 {
+		typeof meta iif . ip6 daddr . fib daddr oif
+		flags dynamic
+		counter
+	}
+
+	set fibif6iif {
+		typeof meta iif . ip6 daddr . fib daddr . iif oif
+		flags dynamic
+		counter
+	}
+
+	set fibtype4 {
+		typeof meta iif . ip daddr . fib daddr type
+		flags dynamic
+		counter
+	}
+
+	set fibtype4iif {
+		typeof meta iif . ip daddr . fib daddr . iif type
+		flags dynamic
+		counter
+	}
+
+	set fibtype6 {
+		typeof meta iif . ip6 daddr . fib daddr type
+		flags dynamic
+		counter
+	}
+
+	set fibtype6iif {
+		typeof meta iif . ip6 daddr . fib daddr . iif type
+		flags dynamic
+		counter
+	}
+
+	chain fib_test {
+		meta nfproto ipv4 jump {
+			add @fibif4 { meta iif . ip daddr . fib daddr oif }
+			add @fibif4iif { meta iif . ip daddr . fib daddr . iif oif }
+			add @fibtype4 { meta iif . ip daddr . fib daddr type }
+			add @fibtype4iif { meta iif . ip daddr . fib daddr . iif type }
+
+			add @fibif4 { meta iif . ip saddr . fib saddr oif }
+			add @fibif4iif { meta iif . ip saddr . fib saddr . iif oif }
+		}
+
+		meta nfproto ipv6 jump {
+			add @fibif6    { meta iif . ip6 daddr . fib daddr oif }
+			add @fibif6iif { meta iif . ip6 daddr . fib daddr . iif oif }
+			add @fibtype6    { meta iif . ip6 daddr . fib daddr type }
+			add @fibtype6iif { meta iif . ip6 daddr . fib daddr . iif type }
+
+			add @fibif6 { meta iif . ip6 saddr . fib saddr oif }
+			add @fibif6iif { meta iif . ip6 saddr . fib saddr . iif oif }
+		}
+	}
+
+	chain prerouting {
+		type filter hook prerouting priority 0;
+		icmp type echo-request counter jump fib_test
+
+		# neighbour discovery to be ignored.
+		icmpv6 type echo-request counter jump fib_test
+	}
+}
+EOF
+
+if [ $? -ne 0 ] ;then
+	echo "SKIP: Could not load ruleset for fib vrf test"
+	[ $ret -eq 0 ] && ret=$ksft_skip
+	return 1
+fi
+}
+
+check_type()
+{
+	local setname="$1"
+	local iifname="$2"
+	local addr="$3"
+	local type="$4"
+	local count="$5"
+	local lret=0
+
+	[ -z "$count" ] && count=1
+
+	if ! ip netns exec "$nsrouter" nft get element inet t "$setname" { "$iifname" . "$addr" . "$type" } |grep -q "counter packets $count";then
+		echo "FAIL: did not find $iifname . $addr . $type in $setname with $count packets"
+		ip netns exec "$nsrouter" nft list set inet t "$setname"
+		ret=1
+		# do not fail right away, delete entry if it exists so later test that
+		# checks for unwanted keys don't get confused by this *expected* key.
+		lret=1
+	fi
+
+	# delete the entry, this allows to check if anything unexpected appeared
+	# at the end of the test run: all dynamic sets should be empty by then.
+	if ! ip netns exec "$nsrouter" nft delete element inet t "$setname" { "$iifname" . "$addr" . "$type" } ; then
+		echo "FAIL: can't delete $iifname . $addr . $type in $setname"
+		ip netns exec "$nsrouter" nft list set inet t "$setname"
+		ret=1
+		return 1
+	fi
+
+	return $lret
+}
+
+check_local()
+{
+	check_type $@ "local" 1
+}
+
+check_unicast()
+{
+	check_type $@ "unicast" 1
+}
+
+check_rpf()
+{
+	check_type $@
+}
+
+check_fib_vrf_sets_empty()
+{
+	local setname=""
+	local lret=0
+
+	# A non-empty set means that we have seen unexpected packets OR
+	# that a fib lookup provided unexpected results.
+	for setname in "fibif4" "fibif4iif" "fibif6" "fibif6iif" \
+		       "fibtype4" "fibtype4iif" "fibtype6" "fibtype6iif";do
+		if ip netns exec "$nsrouter" nft list set inet t "$setname" | grep -q elements;then
+			echo "FAIL: $setname not empty"
+	                ip netns exec "$nsrouter" nft list set inet t "$setname"
+			ret=1
+			lret=1
+		fi
+	done
+
+	return $lret
+}
+
+check_fib_vrf_type()
+{
+	local msg="$1"
+
+	local addr
+	# the incoming interface is always veth0.  As its not linked to a VRF,
+	# the 'tvrf' device should NOT show up anywhere.
+	local ifname="veth0"
+	local lret=0
+
+	# local_veth0, local_veth1
+	for addr in "10.0.1.1" "10.0.2.1"; do
+		check_local fibtype4  "$ifname" "$addr" || lret=1
+		check_type  fibif4    "$ifname" "$addr" "0" || lret=1
+	done
+	for addr in "dead:1::1" "dead:2::1";do
+		check_local fibtype6  "$ifname" "$addr" || lret=1
+		check_type  fibif6    "$ifname" "$addr" "0" || lret=1
+	done
+
+	# when restricted to the incoming interface, 10.0.1.1 should
+	# be 'local', but 10.0.2.1 unicast.
+	check_local fibtype4iif   "$ifname" "10.0.1.1" || lret=1
+	check_unicast fibtype4iif "$ifname" "10.0.2.1" || lret=1
+
+	# same for the ipv6 addresses.
+	check_local fibtype6iif   "$ifname" "dead:1::1" || lret=1
+	check_unicast fibtype6iif "$ifname" "dead:2::1" || lret=1
+
+	# None of these addresses should find a valid route when restricting
+	# to the incoming interface (we ask for daddr - 10.0.1.1/2.1 are
+	# reachable via 'lo'.
+	for addr in "10.0.1.1" "10.0.2.1" "10.9.9.1" "10.9.9.2";do
+		check_type fibif4iif "$ifname" "$addr" "0" || lret=1
+	done
+
+	# expect default route (veth1), dummy0 is part of VRF but iif isn't.
+	for addr in "10.9.9.1" "10.9.9.2";do
+		check_unicast fibtype4    "$ifname" "$addr" || lret=1
+		check_unicast fibtype4iif "$ifname" "$addr" || lret=1
+		check_type fibif4 "$ifname" "$addr" "veth1" || lret=1
+	done
+	for addr in "dead:9::1" "dead:9::2";do
+		check_unicast fibtype6    "$ifname" "$addr" || lret=1
+		check_unicast fibtype6iif "$ifname" "$addr" || lret=1
+		check_type fibif6 "$ifname" "$addr" "veth1" || lret=1
+	done
+
+	# same for the IPv6 equivalent addresses.
+	for addr in "dead:1::1" "dead:2::1" "dead:9::1" "dead:9::2";do
+		check_type  fibif6iif "$ifname" "$addr" "0" || lret=1
+	done
+
+	check_unicast fibtype4    "$ifname" "10.0.2.99" || lret=1
+	check_unicast fibtype4iif "$ifname" "10.0.2.99" || lret=1
+	check_unicast fibtype6    "$ifname" "dead:2::99" || lret=1
+	check_unicast fibtype6iif "$ifname" "dead:2::99" || lret=1
+
+	check_type fibif4 "$ifname" "10.0.2.99" "veth1" || lret=1
+	check_type fibif4iif "$ifname" "10.0.2.99" 0 || lret=1
+	check_type fibif6 "$ifname" "dead:2::99" "veth1" || lret=1
+	check_type fibif6iif "$ifname" "dead:2::99" 0 || lret=1
+
+	check_rpf  fibif4    "$ifname" "10.0.1.99" "veth0" 5 || lret=1
+	check_rpf  fibif4iif "$ifname" "10.0.1.99" "veth0" 5 || lret=1
+	check_rpf  fibif6    "$ifname" "dead:1::99" "veth0" 5 || lret=1
+	check_rpf  fibif6iif "$ifname" "dead:1::99" "veth0" 5 || lret=1
+
+	check_fib_vrf_sets_empty || lret=1
+
+	if [ $lret -eq 0 ];then
+		echo "PASS: $msg"
+	else
+		echo "FAIL: $msg"
+		ret=1
+	fi
+}
+
+check_fib_veth_vrf_type()
+{
+	local msg="$1"
+
+	local addr
+	local ifname
+	local setname
+	local lret=0
+
+	# as veth0 is now part of tvrf interface, packets will be seen
+	# twice, once with iif veth0, then with iif tvrf.
+
+	for ifname in "veth0" "tvrf"; do
+		for addr in "10.0.1.1" "10.9.9.1"; do
+			check_local fibtype4  "$ifname" "$addr" || lret=1
+			# addr local, but nft_fib doesn't return routes with RTN_LOCAL.
+			check_type  fibif4    "$ifname" "$addr" 0 || lret=1
+			check_type  fibif4iif "$ifname" "$addr" 0 || lret=1
+		done
+
+		for addr in "dead:1::1" "dead:9::1"; do
+			check_local fibtype6 "$ifname" "$addr" || lret=1
+			# same, address is local but no route is returned for lo.
+			check_type  fibif6    "$ifname" "$addr" 0 || lret=1
+			check_type  fibif6iif "$ifname" "$addr" 0 || lret=1
+		done
+
+		for t in fibtype4 fibtype4iif; do
+			check_unicast "$t" "$ifname" 10.9.9.2 || lret=1
+		done
+		for t in fibtype6 fibtype6iif; do
+			check_unicast "$t" "$ifname" dead:9::2 || lret=1
+		done
+
+		check_unicast fibtype4iif "$ifname" "10.9.9.1" || lret=1
+		check_unicast fibtype6iif "$ifname" "dead:9::1" || lret=1
+
+		check_unicast fibtype4    "$ifname" "10.0.2.99" || lret=1
+		check_unicast fibtype4iif "$ifname" "10.0.2.99" || lret=1
+
+		check_unicast fibtype6    "$ifname" "dead:2::99" || lret=1
+		check_unicast fibtype6iif "$ifname" "dead:2::99" || lret=1
+
+		check_type fibif4    "$ifname"  "10.0.2.99" "veth1" || lret=1
+		check_type fibif6    "$ifname" "dead:2::99" "veth1" || lret=1
+		check_type fibif4    "$ifname"   "10.9.9.2" "dummy0" || lret=1
+		check_type fibif6    "$ifname"  "dead:9::2" "dummy0" || lret=1
+
+		# restricted to iif -- MUST NOT provide result, its != $ifname.
+		check_type fibif4iif "$ifname"  "10.0.2.99" 0 || lret=1
+		check_type fibif6iif "$ifname" "dead:2::99" 0 || lret=1
+
+		check_rpf  fibif4 "$ifname" "10.0.1.99" "veth0" 4 || lret=1
+		check_rpf  fibif6 "$ifname" "dead:1::99" "veth0" 4 || lret=1
+		check_rpf  fibif4iif "$ifname" "10.0.1.99" "$ifname" 4 || lret=1
+		check_rpf  fibif6iif "$ifname" "dead:1::99" "$ifname" 4 || lret=1
+	done
+
+	check_local fibtype4iif "veth0" "10.0.1.1" || lret=1
+	check_local fibtype6iif "veth0" "dead:1::1" || lret=1
+
+	check_unicast fibtype4iif "tvrf" "10.0.1.1" || lret=1
+	check_unicast fibtype6iif "tvrf" "dead:1::1" || lret=1
+
+	# 10.9.9.2 should not provide a result for iif veth, but
+	# should when iif is tvrf.
+	# This is because its reachable via dummy0 which is part of
+	# tvrf.  iif veth0 MUST conceal the dummy0 result (i.e. return oif 0).
+	check_type fibif4iif "veth0" "10.9.9.2" 0 || lret=1
+	check_type fibif6iif "veth0"  "dead:9::2" 0 || lret=1
+
+	check_type fibif4iif "tvrf" "10.9.9.2" "tvrf" || lret=1
+	check_type fibif6iif "tvrf" "dead:9::2" "tvrf" || lret=1
+
+	check_fib_vrf_sets_empty || lret=1
+
+	if [ $lret -eq 0 ];then
+		echo "PASS: $msg"
+	else
+		echo "FAIL: $msg"
+		ret=1
+	fi
+}
+
+# Extends nsrouter config by adding dummy0+vrf.
+#
+#  10.0.1.99     10.0.1.1           10.0.2.1         10.0.2.99
+# dead:1::99    dead:1::1          dead:2::1        dead:2::99
+# ns1 <-------> [ veth0 ] nsrouter [veth1] <-------> ns2
+#                         [dummy0]
+#                         10.9.9.1
+#                        dead:9::1
+#                          [tvrf]
+test_fib_vrf()
+{
+	local cntname=""
+
+	if ! test_fib_vrf_dev_add_dummy; then
+		[ $ret -eq 0 ] && ret=$ksft_skip
+		return
+	fi
+
+	ip -net "$nsrouter" addr add "10.9.9.1"/24 dev dummy0
+	ip -net "$nsrouter" addr add "dead:9::1"/64 dev dummy0 nodad
+
+	ip -net "$nsrouter" route add default via 10.0.2.99
+	ip -net "$nsrouter" route add default via dead:2::99
+
+	load_ruleset_vrf || return
+
+	# no echo reply for these addresses: The dummy interface is part of tvrf,
+	# but veth0 (incoming interface) isn't linked to it.
+	test_ping_unreachable "10.9.9.1" "dead:9::1" &
+	test_ping_unreachable "10.9.9.2" "dead:9::2" &
+
+	# expect replies from these.
+	test_ping "10.0.1.1" "dead:1::1"
+	test_ping "10.0.2.1" "dead:2::1"
+	test_ping "10.0.2.99" "dead:2::99"
+
+	wait
+
+	check_fib_vrf_type "fib expression address types match (iif not in vrf)"
+
+	# second round: this time, make veth0 (rx interface) part of the vrf.
+	# 10.9.9.1 / dead:9::1 become reachable from ns1, while ns2
+	# becomes unreachable.
+	ip -net "$nsrouter" link set veth0 master tvrf
+	ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
+
+	# this reload should not be needed, but in case
+	# there is some error (missing or unexpected entry) this will prevent them
+	# from leaking into round 2.
+	load_ruleset_vrf || return
+
+	test_ping "10.0.1.1" "dead:1::1"
+	test_ping "10.9.9.1" "dead:9::1"
+
+	# ns2 should no longer be reachable (veth1 not in vrf)
+	test_ping_unreachable "10.0.2.99" "dead:2::99" &
+
+	# vrf via dummy0, but host doesn't exist
+	test_ping_unreachable "10.9.9.2" "dead:9::2" &
+
+	wait
+
+	check_fib_veth_vrf_type "fib expression address types match (iif in vrf)"
+}
+
+ip netns exec "$nsrouter" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+test_ping 10.0.2.1 dead:2::1 || exit 1
+check_drops
+
+test_ping 10.0.2.99 dead:2::99 || exit 1
+check_drops
+
+[ $ret -eq 0 ] && echo "PASS: fib expression did not cause unwanted packet drops"
+
+load_input_ruleset "$ns1"
+
+test_ping 127.0.0.1 ::1
+check_drops
+
+test_ping 10.0.1.99 dead:1::99
+check_drops
+
+[ $ret -eq 0 ] && echo "PASS: fib expression did not discard loopback packets"
+
+load_input_ruleset "$ns1"
+
+test_ping 127.0.0.1 ::1 || exit 1
+check_drops || exit 1
+
+test_ping 10.0.1.99 dead:1::99 || exit 1
+check_drops || exit 1
+
+echo "PASS: fib expression did not discard loopback packets"
+
+ip netns exec "$nsrouter" nft flush table inet filter
+
+ip -net "$ns1" route del default
+ip -net "$ns1" -6 route del default
+
+ip -net "$ns1" addr del 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr del dead:1::99/64 dev eth0
+
+ip -net "$ns1" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns1" addr add dead:2::99/64 dev eth0 nodad
+
+ip -net "$ns1" route add default via 10.0.2.1
+ip -net "$ns1" -6 route add default via dead:2::1
+
+ip -net "$nsrouter" addr add dead:2::1/64 dev veth0 nodad
+
+# switch to ruleset that doesn't log, this time
+# its expected that this does drop the packets.
+load_ruleset_count "$nsrouter"
+
+# ns1 has a default route, but nsrouter does not.
+# must not check return value, ping to 1.1.1.1 will
+# fail.
+check_fib_counter 0 "$nsrouter" 1.1.1.1 || exit 1
+check_fib_counter 0 "$nsrouter" 1c3::c01d || exit 1
+
+ip netns exec "$ns1" ping -W 0.5 -c 1 -q 1.1.1.1 > /dev/null
+check_fib_counter 1 "$nsrouter" 1.1.1.1 || exit 1
+
+ip netns exec "$ns1" ping -W 0.5 -i 0.1 -c 3 -q 1c3::c01d > /dev/null
+check_fib_counter 3 "$nsrouter" 1c3::c01d || exit 1
+
+# delete all rules
+ip netns exec "$ns1" nft flush ruleset
+ip netns exec "$ns2" nft flush ruleset
+ip netns exec "$nsrouter" nft flush ruleset
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+
+ip -net "$ns1" addr del 10.0.2.99/24 dev eth0
+ip -net "$ns1" addr del dead:2::99/64 dev eth0
+
+ip -net "$nsrouter" addr del dead:2::1/64 dev veth0
+
+# ... pbr ruleset for the router, check iif+oif.
+if ! load_pbr_ruleset "$nsrouter";then
+	echo "SKIP: Could not load fib forward ruleset"
+	[ "$ret" -eq 0 ] && ret=$ksft_skip
+fi
+
+ip -net "$nsrouter" rule add from all table 128
+ip -net "$nsrouter" rule add from all iif veth0 table 129
+ip -net "$nsrouter" route add table 128 to 10.0.1.0/24 dev veth0
+ip -net "$nsrouter" route add table 129 to 10.0.2.0/24 dev veth1
+
+# drop main ipv4 table
+ip -net "$nsrouter" -4 rule delete table main
+
+if test_ping 10.0.2.99 dead:2::99;then
+	echo "PASS: fib expression forward check with policy based routing"
+else
+	echo "FAIL: fib expression forward check with policy based routing"
+	ret=1
+fi
+
+test_fib_type "policy routing"
+ip netns exec "$nsrouter" nft delete table ip filter
+ip netns exec "$nsrouter" nft delete table ip6 filter
+
+# Un-do policy routing changes
+ip -net "$nsrouter" rule del from all table 128
+ip -net "$nsrouter" rule del from all iif veth0 table 129
+
+ip -net "$nsrouter" route del table 128 to 10.0.1.0/24 dev veth0
+ip -net "$nsrouter" route del table 129 to 10.0.2.0/24 dev veth1
+
+ip -net "$ns1" -4 route del default
+ip -net "$ns1" -6 route del default
+
+ip -net "$ns1" -4 route add default via 10.0.1.1
+ip -net "$ns1" -6 route add default via dead:1::1
+
+ip -net "$nsrouter" -4 rule add from all table main priority 32766
+
+test_fib_type "default table"
+ip netns exec "$nsrouter" nft delete table ip filter
+ip netns exec "$nsrouter" nft delete table ip6 filter
+
+test_fib_vrf
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_flowtable.sh b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
new file mode 100755
index 000000000000..a68bc882fa4e
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_flowtable.sh
@@ -0,0 +1,811 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This tests basic flowtable functionality.
+# Creates following default topology:
+#
+# Originator (MTU 9000) <-Router1-> MTU 1500 <-Router2-> Responder (MTU 2000)
+# Router1 is the one doing flow offloading, Router2 has no special
+# purpose other than having a link that is smaller than either Originator
+# and responder, i.e. TCPMSS announced values are too large and will still
+# result in fragmentation and/or PMTU discovery.
+#
+# You can check with different Orgininator/Link/Responder MTU eg:
+# nft_flowtable.sh -o8000 -l1500 -r2000
+#
+
+source lib.sh
+
+ret=0
+SOCAT_TIMEOUT=60
+
+nsin=""
+nsin_small=""
+ns1out=""
+ns2out=""
+
+log_netns=$(sysctl -n net.netfilter.nf_log_all_netns)
+
+checktool "nft --version" "run test without nft tool"
+checktool "socat -h" "run test without socat"
+
+setup_ns ns1 ns2 nsr1 nsr2
+
+cleanup() {
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+
+	rm -f "$nsin" "$nsin_small" "$ns1out" "$ns2out"
+
+	[ "$log_netns" -eq 0 ] && sysctl -q net.netfilter.nf_log_all_netns="$log_netns"
+}
+
+trap cleanup EXIT
+
+sysctl -q net.netfilter.nf_log_all_netns=1
+
+ip link add veth0 netns "$nsr1" type veth peer name eth0 netns "$ns1"
+ip link add veth1 netns "$nsr1" type veth peer name veth0 netns "$nsr2"
+
+ip link add veth1 netns "$nsr2" type veth peer name eth0 netns "$ns2"
+
+for dev in veth0 veth1; do
+    ip -net "$nsr1" link set "$dev" up
+    ip -net "$nsr2" link set "$dev" up
+done
+
+ip -net "$nsr1" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsr1" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$nsr2" addr add 10.0.2.1/24 dev veth1
+ip -net "$nsr2" addr add dead:2::1/64 dev veth1 nodad
+
+# set different MTUs so we need to push packets coming from ns1 (large MTU)
+# to ns2 (smaller MTU) to stack either to perform fragmentation (ip_no_pmtu_disc=1),
+# or to do PTMU discovery (send ICMP error back to originator).
+# ns2 is going via nsr2 with a smaller mtu, so that TCPMSS announced by both peers
+# is NOT the lowest link mtu.
+
+omtu=9000
+lmtu=1500
+rmtu=2000
+
+filesize=$((2 * 1024 * 1024))
+filesize_small=$((filesize / 16))
+
+usage(){
+	echo "nft_flowtable.sh [OPTIONS]"
+	echo
+	echo "MTU options"
+	echo "   -o originator"
+	echo "   -l link"
+	echo "   -r responder"
+	exit 1
+}
+
+while getopts "o:l:r:s:" o
+do
+	case $o in
+		o) omtu=$OPTARG;;
+		l) lmtu=$OPTARG;;
+		r) rmtu=$OPTARG;;
+		s)
+			filesize=$OPTARG
+			filesize_small=$((OPTARG / 16))
+		;;
+		*) usage;;
+	esac
+done
+
+if ! ip -net "$nsr1" link set veth0 mtu "$omtu"; then
+	exit 1
+fi
+
+ip -net "$ns1" link set eth0 mtu "$omtu"
+
+if ! ip -net "$nsr2" link set veth1 mtu "$rmtu"; then
+	exit 1
+fi
+
+if ! ip -net "$nsr1" link set veth1 mtu "$lmtu"; then
+	exit 1
+fi
+
+if ! ip -net "$nsr2" link set veth0 mtu "$lmtu"; then
+	exit 1
+fi
+
+ip -net "$ns2" link set eth0 mtu "$rmtu"
+
+# transfer-net between nsr1 and nsr2.
+# these addresses are not used for connections.
+ip -net "$nsr1" addr add 192.168.10.1/24 dev veth1
+ip -net "$nsr1" addr add fee1:2::1/64 dev veth1 nodad
+
+ip -net "$nsr2" addr add 192.168.10.2/24 dev veth0
+ip -net "$nsr2" addr add fee1:2::2/64 dev veth0 nodad
+
+ip netns exec "$nsr1" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec "$nsr2" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+for i in 0 1; do
+  ip netns exec "$nsr1" sysctl net.ipv4.conf.veth$i.forwarding=1 > /dev/null
+  ip netns exec "$nsr2" sysctl net.ipv4.conf.veth$i.forwarding=1 > /dev/null
+done
+
+for ns in "$ns1" "$ns2";do
+  ip -net "$ns" link set eth0 up
+
+  if ! ip netns exec "$ns" sysctl net.ipv4.tcp_no_metrics_save=1 > /dev/null; then
+	echo "ERROR: Check Originator/Responder values (problem during address addition)"
+	exit 1
+  fi
+  # don't set ip DF bit for first two tests
+  ip netns exec "$ns" sysctl net.ipv4.ip_no_pmtu_disc=1 > /dev/null
+done
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns2" addr add dead:2::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via dead:1::1
+ip -net "$ns2" route add default via dead:2::1
+
+ip -net "$nsr1" route add default via 192.168.10.2
+ip -6 -net "$nsr1" route add default via fee1:2::2
+ip -net "$nsr2" route add default via 192.168.10.1
+ip -6 -net "$nsr2" route add default via fee1:2::1
+
+ip netns exec "$nsr1" nft -f - <<EOF
+table inet filter {
+  flowtable f1 {
+     hook ingress priority 0
+     devices = { veth0, veth1 }
+   }
+
+   counter routed_orig { }
+   counter routed_repl { }
+
+   chain forward {
+      type filter hook forward priority 0; policy drop;
+
+      # flow offloaded? Tag ct with mark 1, so we can detect when it fails.
+      meta oif "veth1" tcp dport 12345 ct mark set 1 flow add @f1 counter name routed_orig accept
+
+      # count packets supposedly offloaded as per direction.
+      ct mark 1 counter name ct direction map { original : routed_orig, reply : routed_repl } accept
+
+      ct state established,related accept
+
+      meta nfproto ipv4 meta l4proto icmp accept
+      meta nfproto ipv6 meta l4proto icmpv6 accept
+   }
+}
+EOF
+
+if [ $? -ne 0 ]; then
+	echo "SKIP: Could not load nft ruleset"
+	exit $ksft_skip
+fi
+
+ip netns exec "$ns2" nft -f - <<EOF
+table inet filter {
+   counter ip4dscp0 { }
+   counter ip4dscp3 { }
+
+   chain input {
+      type filter hook input priority 0; policy accept;
+      meta l4proto tcp goto {
+	      ip dscp cs3 counter name ip4dscp3 accept
+	      ip dscp 0 counter name ip4dscp0 accept
+      }
+   }
+}
+EOF
+
+if [ $? -ne 0 ]; then
+	echo -n "SKIP: Could not load ruleset: "
+	nft --version
+	exit $ksft_skip
+fi
+
+# test basic connectivity
+if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.99 > /dev/null; then
+  echo "ERROR: $ns1 cannot reach ns2" 1>&2
+  exit 1
+fi
+
+if ! ip netns exec "$ns2" ping -c 1 -q 10.0.1.99 > /dev/null; then
+  echo "ERROR: $ns2 cannot reach $ns1" 1>&2
+  exit 1
+fi
+
+nsin=$(mktemp)
+nsin_small=$(mktemp)
+ns1out=$(mktemp)
+ns2out=$(mktemp)
+
+make_file()
+{
+	name="$1"
+	sz="$2"
+
+	head -c "$sz" < /dev/urandom > "$name"
+}
+
+check_counters()
+{
+	local what=$1
+	local ok=1
+
+	local orig repl
+	orig=$(ip netns exec "$nsr1" nft reset counter inet filter routed_orig | grep packets)
+	repl=$(ip netns exec "$nsr1" nft reset counter inet filter routed_repl | grep packets)
+
+	local orig_cnt=${orig#*bytes}
+	local repl_cnt=${repl#*bytes}
+
+	local fs
+	fs=$(du -sb "$nsin")
+	local max_orig=${fs%%/*}
+	local max_repl=$((max_orig))
+
+	# flowtable fastpath should bypass normal routing one, i.e. the counters in forward hook
+	# should always be lower than the size of the transmitted file (max_orig).
+	if [ "$orig_cnt" -gt "$max_orig" ];then
+		echo "FAIL: $what: original counter $orig_cnt exceeds expected value $max_orig, reply counter $repl_cnt" 1>&2
+		ret=1
+		ok=0
+	fi
+
+	if [ "$repl_cnt" -gt $max_repl ];then
+		echo "FAIL: $what: reply counter $repl_cnt exceeds expected value $max_repl, original counter $orig_cnt" 1>&2
+		ret=1
+		ok=0
+	fi
+
+	if [ $ok -eq 1 ]; then
+		echo "PASS: $what"
+	fi
+}
+
+check_dscp()
+{
+	local what=$1
+	local pmtud="$2"
+	local ok=1
+
+	local counter
+	counter=$(ip netns exec "$ns2" nft reset counter inet filter ip4dscp3 | grep packets)
+
+	local pc4=${counter%*bytes*}
+	local pc4=${pc4#*packets}
+
+	counter=$(ip netns exec "$ns2" nft reset counter inet filter ip4dscp0 | grep packets)
+	local pc4z=${counter%*bytes*}
+	local pc4z=${pc4z#*packets}
+
+	local failmsg="FAIL: pmtu $pmtu: $what counters do not match, expected"
+
+	case "$what" in
+	"dscp_none")
+		if [ "$pc4" -gt 0 ] || [ "$pc4z" -eq 0 ]; then
+			echo "$failmsg dscp3 == 0, dscp0 > 0, but got $pc4,$pc4z" 1>&2
+			ret=1
+			ok=0
+		fi
+		;;
+	"dscp_fwd")
+		if [ "$pc4" -eq 0 ] || [ "$pc4z" -eq 0 ]; then
+			echo "$failmsg dscp3 and dscp0 > 0 but got $pc4,$pc4z" 1>&2
+			ret=1
+			ok=0
+		fi
+		;;
+	"dscp_ingress")
+		if [ "$pc4" -eq 0 ] || [ "$pc4z" -gt 0 ]; then
+			echo "$failmsg dscp3 > 0, dscp0 == 0 but got $pc4,$pc4z" 1>&2
+			ret=1
+			ok=0
+		fi
+		;;
+	"dscp_egress")
+		if [ "$pc4" -eq 0 ] || [ "$pc4z" -gt 0 ]; then
+			echo "$failmsg dscp3 > 0, dscp0 == 0 but got $pc4,$pc4z" 1>&2
+			ret=1
+			ok=0
+		fi
+		;;
+	*)
+		echo "$failmsg: Unknown DSCP check" 1>&2
+		ret=1
+		ok=0
+	esac
+
+	if [ "$ok" -eq 1 ] ;then
+		echo "PASS: $what: dscp packet counters match"
+	fi
+}
+
+check_transfer()
+{
+	local in=$1
+	local out=$2
+	local what=$3
+
+	if ! cmp "$in" "$out" > /dev/null 2>&1; then
+		echo "FAIL: file mismatch for $what" 1>&2
+		ls -l "$in"
+		ls -l "$out"
+		return 1
+	fi
+
+	return 0
+}
+
+listener_ready()
+{
+	ss -N "$nsb" -lnt -o "sport = :12345" | grep -q 12345
+}
+
+test_tcp_forwarding_ip()
+{
+	local nsa=$1
+	local nsb=$2
+	local pmtu=$3
+	local proto=$4
+	local dstip=$5
+	local dstport=$6
+	local lret=0
+	local socatc
+	local socatl
+	local infile="$nsin"
+
+	if [ $pmtu -eq 0 ]; then
+		infile="$nsin_small"
+	fi
+
+	timeout "$SOCAT_TIMEOUT" ip netns exec "$nsb" socat -${proto} \
+            TCP"${proto}"-LISTEN:12345,reuseaddr STDIO < "$infile" > "$ns2out" &
+	lpid=$!
+
+	busywait 1000 listener_ready
+
+	timeout "$SOCAT_TIMEOUT" ip netns exec "$nsa" socat -${proto} \
+            TCP"${proto}":"$dstip":"$dstport" STDIO < "$infile" > "$ns1out"
+	socatc=$?
+
+	wait $lpid
+	socatl=$?
+
+	if [ $socatl -ne 0 ] || [ $socatc -ne 0 ];then
+		rc=1
+	fi
+
+	if ! check_transfer "$infile" "$ns2out" "ns1 -> ns2"; then
+		lret=1
+		ret=1
+	fi
+
+	if ! check_transfer "$infile" "$ns1out" "ns1 <- ns2"; then
+		lret=1
+		ret=1
+	fi
+
+	return $lret
+}
+
+test_tcp_forwarding()
+{
+	local pmtu="$3"
+	local proto="$4"
+	local dstip="$5"
+	local dstport="$6"
+
+	test_tcp_forwarding_ip "$1" "$2" "$pmtu" "$proto" "$dstip" "$dstport"
+
+	return $?
+}
+
+test_tcp_forwarding_set_dscp()
+{
+	local pmtu="$3"
+	local proto="$4"
+	local dstip="$5"
+	local dstport="$6"
+
+ip netns exec "$nsr1" nft -f - <<EOF
+table netdev dscpmangle {
+   chain setdscp0 {
+      type filter hook ingress device "veth0" priority 0; policy accept
+	ip dscp set cs3
+  }
+}
+EOF
+if [ $? -eq 0 ]; then
+	test_tcp_forwarding_ip "$1" "$2" "$pmtu" "$proto" "$dstip" "$dstport"
+	check_dscp "dscp_ingress" "$pmtu"
+
+	ip netns exec "$nsr1" nft delete table netdev dscpmangle
+else
+	echo "SKIP: Could not load netdev:ingress for veth0"
+fi
+
+ip netns exec "$nsr1" nft -f - <<EOF
+table netdev dscpmangle {
+   chain setdscp0 {
+      type filter hook egress device "veth1" priority 0; policy accept
+      ip dscp set cs3
+  }
+}
+EOF
+if [ $? -eq 0 ]; then
+	test_tcp_forwarding_ip "$1" "$2" "$pmtu" "$proto" "$dstip" "$dstport"
+	check_dscp "dscp_egress" "$pmtu"
+
+	ip netns exec "$nsr1" nft delete table netdev dscpmangle
+else
+	echo "SKIP: Could not load netdev:egress for veth1"
+fi
+
+	# partial.  If flowtable really works, then both dscp-is-0 and dscp-is-cs3
+	# counters should have seen packets (before and after ft offload kicks in).
+	ip netns exec "$nsr1" nft -a insert rule inet filter forward ip dscp set cs3
+	test_tcp_forwarding_ip "$1" "$2" "$pmtu" "$proto" "$dstip" "$dstport"
+	check_dscp "dscp_fwd" "$pmtu"
+}
+
+test_tcp_forwarding_nat()
+{
+	local nsa="$1"
+	local nsb="$2"
+	local pmtu="$3"
+	local what="$4"
+	local lret
+
+	[ "$pmtu" -eq 0 ] && what="$what (pmtu disabled)"
+
+	test_tcp_forwarding_ip "$nsa" "$nsb" "$pmtu" 4 10.0.2.99 12345
+	lret=$?
+
+	if [ "$lret" -eq 0 ] ; then
+		if [ "$pmtu" -eq 1 ] ;then
+			check_counters "flow offload for ns1/ns2 with masquerade $what"
+		else
+			echo "PASS: flow offload for ns1/ns2 with masquerade $what"
+		fi
+
+		test_tcp_forwarding_ip "$1" "$2" "$pmtu" 4 10.6.6.6 1666
+		lret=$?
+		if [ "$pmtu" -eq 1 ] ;then
+			check_counters "flow offload for ns1/ns2 with dnat $what"
+		elif [ "$lret" -eq 0 ] ; then
+			echo "PASS: flow offload for ns1/ns2 with dnat $what"
+		fi
+	else
+		echo "FAIL: flow offload for ns1/ns2 with dnat $what"
+	fi
+
+	return $lret
+}
+
+make_file "$nsin" "$filesize"
+make_file "$nsin_small" "$filesize_small"
+
+# First test:
+# No PMTU discovery, nsr1 is expected to fragment packets from ns1 to ns2 as needed.
+# Due to MTU mismatch in both directions, all packets (except small packets like pure
+# acks) have to be handled by normal forwarding path.  Therefore, packet counters
+# are not checked.
+if test_tcp_forwarding "$ns1" "$ns2" 0 4 10.0.2.99 12345; then
+	echo "PASS: flow offloaded for ns1/ns2"
+else
+	echo "FAIL: flow offload for ns1/ns2:" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+if test_tcp_forwarding "$ns1" "$ns2" 0 6 "[dead:2::99]" 12345; then
+	echo "PASS: IPv6 flow offloaded for ns1/ns2"
+else
+	echo "FAIL: IPv6 flow offload for ns1/ns2:" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+# delete default route, i.e. ns2 won't be able to reach ns1 and
+# will depend on ns1 being masqueraded in nsr1.
+# expect ns1 has nsr1 address.
+ip -net "$ns2" route del default via 10.0.2.1
+ip -net "$ns2" route del default via dead:2::1
+ip -net "$ns2" route add 192.168.10.1 via 10.0.2.1
+
+# Second test:
+# Same, but with NAT enabled.  Same as in first test: we expect normal forward path
+# to handle most packets.
+ip netns exec "$nsr1" nft -f - <<EOF
+table ip nat {
+   chain prerouting {
+      type nat hook prerouting priority 0; policy accept;
+      meta iif "veth0" ip daddr 10.6.6.6 tcp dport 1666 counter dnat ip to 10.0.2.99:12345
+   }
+
+   chain postrouting {
+      type nat hook postrouting priority 0; policy accept;
+      meta oifname "veth1" counter masquerade
+   }
+}
+EOF
+
+check_dscp "dscp_none" "0"
+if ! test_tcp_forwarding_set_dscp "$ns1" "$ns2" 0 4 10.0.2.99 12345; then
+	echo "FAIL: flow offload for ns1/ns2 with dscp update and no pmtu discovery" 1>&2
+	exit 0
+fi
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 0 ""; then
+	echo "FAIL: flow offload for ns1/ns2 with NAT" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+# Third test:
+# Same as second test, but with PMTU discovery enabled. This
+# means that we expect the fastpath to handle packets as soon
+# as the endpoints adjust the packet size.
+ip netns exec "$ns1" sysctl net.ipv4.ip_no_pmtu_disc=0 > /dev/null
+ip netns exec "$ns2" sysctl net.ipv4.ip_no_pmtu_disc=0 > /dev/null
+
+# reset counters.
+# With pmtu in-place we'll also check that nft counters
+# are lower than file size and packets were forwarded via flowtable layer.
+# For earlier tests (large mtus), packets cannot be handled via flowtable
+# (except pure acks and other small packets).
+ip netns exec "$nsr1" nft reset counters table inet filter >/dev/null
+ip netns exec "$ns2"  nft reset counters table inet filter >/dev/null
+
+if ! test_tcp_forwarding_set_dscp "$ns1" "$ns2" 1 4 10.0.2.99 12345; then
+	echo "FAIL: flow offload for ns1/ns2 with dscp update and pmtu discovery" 1>&2
+	exit 0
+fi
+
+ip netns exec "$nsr1" nft reset counters table inet filter >/dev/null
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 ""; then
+	echo "FAIL: flow offload for ns1/ns2 with NAT and pmtu discovery" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+fi
+
+# IPIP tunnel test:
+# Add IPIP tunnel interfaces and check flowtable acceleration.
+test_ipip() {
+if ! ip -net "$nsr1" link add name tun0 type ipip \
+     local 192.168.10.1 remote 192.168.10.2 >/dev/null;then
+	echo "SKIP: could not add ipip tunnel"
+	[ "$ret" -eq 0 ] && ret=$ksft_skip
+	return
+fi
+ip -net "$nsr1" link set tun0 up
+ip -net "$nsr1" addr add 192.168.100.1/24 dev tun0
+ip netns exec "$nsr1" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null
+
+ip -net "$nsr2" link add name tun0 type ipip local 192.168.10.2 remote 192.168.10.1
+ip -net "$nsr2" link set tun0 up
+ip -net "$nsr2" addr add 192.168.100.2/24 dev tun0
+ip netns exec "$nsr2" sysctl net.ipv4.conf.tun0.forwarding=1 > /dev/null
+
+ip -net "$nsr1" route change default via 192.168.100.2
+ip -net "$nsr2" route change default via 192.168.100.1
+ip -net "$ns2" route add default via 10.0.2.1
+
+ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun0 accept'
+ip netns exec "$nsr1" nft -a insert rule inet filter forward \
+	'meta oif "veth0" tcp sport 12345 ct mark set 1 flow add @f1 counter name routed_repl accept'
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel"; then
+	echo "FAIL: flow offload for ns1/ns2 with IPIP tunnel" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+# Create vlan tagged devices for IPIP traffic.
+ip -net "$nsr1" link add link veth1 name veth1.10 type vlan id 10
+ip -net "$nsr1" link set veth1.10 up
+ip -net "$nsr1" addr add 192.168.20.1/24 dev veth1.10
+ip netns exec "$nsr1" sysctl net.ipv4.conf.veth1/10.forwarding=1 > /dev/null
+ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif veth1.10 accept'
+ip -net "$nsr1" link add name tun1 type ipip local 192.168.20.1 remote 192.168.20.2
+ip -net "$nsr1" link set tun1 up
+ip -net "$nsr1" addr add 192.168.200.1/24 dev tun1
+ip -net "$nsr1" route change default via 192.168.200.2
+ip netns exec "$nsr1" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null
+ip netns exec "$nsr1" nft -a insert rule inet filter forward 'meta oif tun1 accept'
+
+ip -net "$nsr2" link add link veth0 name veth0.10 type vlan id 10
+ip -net "$nsr2" link set veth0.10 up
+ip -net "$nsr2" addr add 192.168.20.2/24 dev veth0.10
+ip netns exec "$nsr2" sysctl net.ipv4.conf.veth0/10.forwarding=1 > /dev/null
+ip -net "$nsr2" link add name tun1 type ipip local 192.168.20.2 remote 192.168.20.1
+ip -net "$nsr2" link set tun1 up
+ip -net "$nsr2" addr add 192.168.200.2/24 dev tun1
+ip -net "$nsr2" route change default via 192.168.200.1
+ip netns exec "$nsr2" sysctl net.ipv4.conf.tun1.forwarding=1 > /dev/null
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "IPIP tunnel over vlan"; then
+	echo "FAIL: flow offload for ns1/ns2 with IPIP tunnel over vlan" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+# Restore the previous configuration
+ip -net "$nsr1" route change default via 192.168.10.2
+ip -net "$nsr2" route change default via 192.168.10.1
+ip -net "$ns2" route del default via 10.0.2.1
+}
+
+# Another test:
+# Add bridge interface br0 to Router1, with NAT enabled.
+test_bridge() {
+if ! ip -net "$nsr1" link add name br0 type bridge 2>/dev/null;then
+	echo "SKIP: could not add bridge br0"
+	[ "$ret" -eq 0 ] && ret=$ksft_skip
+	return
+fi
+ip -net "$nsr1" addr flush dev veth0
+ip -net "$nsr1" link set up dev veth0
+ip -net "$nsr1" link set veth0 master br0
+ip -net "$nsr1" addr add 10.0.1.1/24 dev br0
+ip -net "$nsr1" addr add dead:1::1/64 dev br0 nodad
+ip -net "$nsr1" link set up dev br0
+
+ip netns exec "$nsr1" sysctl net.ipv4.conf.br0.forwarding=1 > /dev/null
+
+# br0 with NAT enabled.
+ip netns exec "$nsr1" nft -f - <<EOF
+flush table ip nat
+table ip nat {
+   chain prerouting {
+      type nat hook prerouting priority 0; policy accept;
+      meta iif "br0" ip daddr 10.6.6.6 tcp dport 1666 counter dnat ip to 10.0.2.99:12345
+   }
+
+   chain postrouting {
+      type nat hook postrouting priority 0; policy accept;
+      meta oifname "veth1" counter masquerade
+   }
+}
+EOF
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "on bridge"; then
+	echo "FAIL: flow offload for ns1/ns2 with bridge NAT" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+
+# Another test:
+# Add bridge interface br0 to Router1, with NAT and VLAN.
+ip -net "$nsr1" link set veth0 nomaster
+ip -net "$nsr1" link set down dev veth0
+ip -net "$nsr1" link add link veth0 name veth0.10 type vlan id 10
+ip -net "$nsr1" link set up dev veth0
+ip -net "$nsr1" link set up dev veth0.10
+ip -net "$nsr1" link set veth0.10 master br0
+
+ip -net "$ns1" addr flush dev eth0
+ip -net "$ns1" link add link eth0 name eth0.10 type vlan id 10
+ip -net "$ns1" link set eth0 up
+ip -net "$ns1" link set eth0.10 up
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0.10
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" addr add dead:1::99/64 dev eth0.10 nodad
+
+if ! test_tcp_forwarding_nat "$ns1" "$ns2" 1 "bridge and VLAN"; then
+	echo "FAIL: flow offload for ns1/ns2 with bridge NAT and VLAN" 1>&2
+	ip netns exec "$nsr1" nft list ruleset
+	ret=1
+fi
+
+# restore test topology (remove bridge and VLAN)
+ip -net "$nsr1" link set veth0 nomaster
+ip -net "$nsr1" link set veth0 down
+ip -net "$nsr1" link set veth0.10 down
+ip -net "$nsr1" link delete veth0.10 type vlan
+ip -net "$nsr1" link delete br0 type bridge
+ip -net "$ns1" addr flush dev eth0.10
+ip -net "$ns1" link set eth0.10 down
+ip -net "$ns1" link set eth0 down
+ip -net "$ns1" link delete eth0.10 type vlan
+
+# restore address in ns1 and nsr1
+ip -net "$ns1" link set eth0 up
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via dead:1::1
+ip -net "$nsr1" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsr1" addr add dead:1::1/64 dev veth0 nodad
+ip -net "$nsr1" link set up dev veth0
+}
+
+test_ipip
+
+test_bridge
+
+KEY_SHA="0x"$(ps -af | sha1sum | cut -d " " -f 1)
+KEY_AES="0x"$(ps -af | md5sum | cut -d " " -f 1)
+SPI1=$RANDOM
+SPI2=$RANDOM
+
+if [ $SPI1 -eq $SPI2 ]; then
+	SPI2=$((SPI2+1))
+fi
+
+do_esp() {
+    local ns=$1
+    local me=$2
+    local remote=$3
+    local lnet=$4
+    local rnet=$5
+    local spi_out=$6
+    local spi_in=$7
+
+    ip -net "$ns" xfrm state add src "$remote" dst "$me" proto esp spi "$spi_in"  enc aes "$KEY_AES"  auth sha1 "$KEY_SHA" mode tunnel sel src "$rnet" dst "$lnet"
+    ip -net "$ns" xfrm state add src "$me"  dst "$remote" proto esp spi "$spi_out" enc aes "$KEY_AES" auth sha1 "$KEY_SHA" mode tunnel sel src "$lnet" dst "$rnet"
+
+    # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
+    ip -net "$ns" xfrm policy add src "$lnet" dst "$rnet" dir out tmpl src "$me" dst "$remote" proto esp mode tunnel priority 1 action allow
+    # to fwd decrypted packets after esp processing:
+    ip -net "$ns" xfrm policy add src "$rnet" dst "$lnet" dir fwd tmpl src "$remote" dst "$me" proto esp mode tunnel priority 1 action allow
+}
+
+do_esp "$nsr1" 192.168.10.1 192.168.10.2 10.0.1.0/24 10.0.2.0/24 "$SPI1" "$SPI2"
+
+do_esp "$nsr2" 192.168.10.2 192.168.10.1 10.0.2.0/24 10.0.1.0/24 "$SPI2" "$SPI1"
+
+ip netns exec "$nsr1" nft delete table ip nat
+
+# restore default routes
+ip -net "$ns2" route del 192.168.10.1 via 10.0.2.1
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns2" route add default via dead:2::1
+
+if test_tcp_forwarding "$ns1" "$ns2" 1 4 10.0.2.99 12345; then
+	check_counters "ipsec tunnel mode for ns1/ns2"
+else
+	echo "FAIL: ipsec tunnel mode for ns1/ns2"
+	ip netns exec "$nsr1" nft list ruleset 1>&2
+	ip netns exec "$nsr1" cat /proc/net/xfrm_stat 1>&2
+fi
+
+if test_tcp_forwarding "$ns1" "$ns2" 1 6 "[dead:2::99]" 12345; then
+	check_counters "IPv6 ipsec tunnel mode for ns1/ns2"
+else
+	echo "FAIL: IPv6 ipsec tunnel mode for ns1/ns2"
+	ip netns exec "$nsr1" nft list ruleset 1>&2
+	ip netns exec "$nsr1" cat /proc/net/xfrm_stat 1>&2
+fi
+
+if [ "$1" = "" ]; then
+	low=1280
+	mtu=$((65536 - low))
+	o=$(((RANDOM%mtu) + low))
+	l=$(((RANDOM%mtu) + low))
+	r=$(((RANDOM%mtu) + low))
+
+	MINSIZE=$((2 *  1000 * 1000))
+	MAXSIZE=$((64 * 1000 * 1000))
+
+	filesize=$(((RANDOM * RANDOM) % MAXSIZE))
+	if [ "$filesize" -lt "$MINSIZE" ]; then
+		filesize=$((filesize+MINSIZE))
+	fi
+
+	echo "re-run with random mtus and file size: -o $o -l $l -r $r -s $filesize"
+	$0 -o "$o" -l "$l" -r "$r" -s "$filesize" || ret=1
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_interface_stress.sh b/tools/testing/selftests/net/netfilter/nft_interface_stress.sh
new file mode 100755
index 000000000000..c0fffaa6dbd9
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_interface_stress.sh
@@ -0,0 +1,157 @@
+#!/bin/bash -e
+#
+# SPDX-License-Identifier: GPL-2.0
+#
+# Torture nftables' netdevice notifier callbacks and related code by frequent
+# renaming of interfaces which netdev-family chains and flowtables hook into.
+
+source lib.sh
+
+checktool "nft --version" "run test without nft tool"
+checktool "iperf3 --version" "run test without iperf3 tool"
+
+read kernel_tainted < /proc/sys/kernel/tainted
+
+# how many seconds to torture the kernel?
+# default to 80% of max run time but don't exceed 48s
+TEST_RUNTIME=$((${kselftest_timeout:-60} * 8 / 10))
+[[ $TEST_RUNTIME -gt 48 ]] && TEST_RUNTIME=48
+
+trap "cleanup_all_ns" EXIT
+
+setup_ns nsc nsr nss
+
+ip -net $nsc link add cr0 type veth peer name rc0 netns $nsr
+ip -net $nsc addr add 10.0.0.1/24 dev cr0
+ip -net $nsc link set cr0 up
+ip -net $nsc route add default via 10.0.0.2
+
+ip -net $nss link add sr0 type veth peer name rs0 netns $nsr
+ip -net $nss addr add 10.1.0.1/24 dev sr0
+ip -net $nss link set sr0 up
+ip -net $nss route add default via 10.1.0.2
+
+ip -net $nsr addr add 10.0.0.2/24 dev rc0
+ip -net $nsr link set rc0 up
+ip -net $nsr addr add 10.1.0.2/24 dev rs0
+ip -net $nsr link set rs0 up
+ip netns exec $nsr sysctl -q net.ipv4.ip_forward=1
+ip netns exec $nsr sysctl -q net.ipv4.conf.all.forwarding=1
+
+{
+	echo "table netdev t {"
+	for ((i = 0; i < 10; i++)); do
+		cat <<-EOF
+		chain chain_rc$i {
+			type filter hook ingress device rc$i priority 0
+			counter
+		}
+		chain chain_rs$i {
+			type filter hook ingress device rs$i priority 0
+			counter
+		}
+		EOF
+	done
+	echo "}"
+	echo "table ip t {"
+	for ((i = 0; i < 10; i++)); do
+		cat <<-EOF
+		flowtable ft_${i} {
+			hook ingress priority 0
+			devices = { rc$i, rs$i }
+		}
+		EOF
+	done
+	echo "chain c {"
+	echo "type filter hook forward priority 0"
+	for ((i = 0; i < 10; i++)); do
+		echo -n "iifname rc$i oifname rs$i "
+		echo    "ip protocol tcp counter flow add @ft_${i}"
+	done
+	echo "counter"
+	echo "}"
+	echo "}"
+} | ip netns exec $nsr nft -f - || {
+	echo "SKIP: Could not load nft ruleset"
+	exit $ksft_skip
+}
+
+for ((o=0, n=1; ; o=n, n++, n %= 10)); do
+	ip -net $nsr link set rc$o name rc$n
+	ip -net $nsr link set rs$o name rs$n
+done &
+rename_loop_pid=$!
+
+while true; do ip netns exec $nsr nft list ruleset >/dev/null 2>&1; done &
+nft_list_pid=$!
+
+ip netns exec $nsr nft monitor >/dev/null &
+nft_monitor_pid=$!
+
+ip netns exec $nss iperf3 --server --daemon -1
+summary_expr='s,^\[SUM\] .* \([0-9\.]\+\) Kbits/sec .* receiver,\1,p'
+rate=$(ip netns exec $nsc iperf3 \
+	--format k -c 10.1.0.1 --time $TEST_RUNTIME \
+	--length 56 --parallel 10 -i 0 | sed -n "$summary_expr")
+
+kill $nft_list_pid
+kill $nft_monitor_pid
+kill $rename_loop_pid
+wait
+
+wildcard_prep() {
+	ip netns exec $nsr nft -f - <<EOF
+table ip t {
+	flowtable ft_wild {
+		hook ingress priority 0
+		devices = { wild* }
+	}
+}
+EOF
+}
+
+if ! wildcard_prep; then
+	echo "SKIP wildcard tests: not supported by host's nft?"
+else
+	for ((i = 0; i < 100; i++)); do
+		ip -net $nsr link add wild$i type dummy &
+	done
+	wait
+	for ((i = 80; i < 100; i++)); do
+		ip -net $nsr link del wild$i &
+	done
+	for ((i = 0; i < 80; i++)); do
+		ip -net $nsr link del wild$i &
+	done
+	wait
+	for ((i = 0; i < 100; i += 10)); do
+		(
+		for ((j = 0; j < 10; j++)); do
+			ip -net $nsr link add wild$((i + j)) type dummy
+		done
+		for ((j = 0; j < 10; j++)); do
+			ip -net $nsr link del wild$((i + j))
+		done
+		) &
+	done
+	wait
+fi
+
+
+[[ $kernel_tainted -eq 0 && $(</proc/sys/kernel/tainted) -ne 0 ]] && {
+	echo "FAIL: Kernel is tainted!"
+	exit $ksft_fail
+}
+
+[[ $rate -gt 0 ]] || {
+	echo "FAIL: Zero throughput in iperf3"
+	exit $ksft_fail
+}
+
+[[ -f /sys/kernel/debug/kmemleak && \
+   -n $(</sys/kernel/debug/kmemleak) ]] && {
+	echo "FAIL: non-empty kmemleak report"
+	exit $ksft_fail
+}
+
+exit $ksft_pass
diff --git a/tools/testing/selftests/net/netfilter/nft_meta.sh b/tools/testing/selftests/net/netfilter/nft_meta.sh
new file mode 100755
index 000000000000..71505b6cb252
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_meta.sh
@@ -0,0 +1,142 @@
+#!/bin/bash
+
+# check iif/iifname/oifgroup/iiftype match.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+sfx=$(mktemp -u "XXXXXXXX")
+ns0="ns0-$sfx"
+
+if ! nft --version > /dev/null 2>&1; then
+	echo "SKIP: Could not run test without nft tool"
+	exit $ksft_skip
+fi
+
+cleanup()
+{
+	ip netns del "$ns0"
+}
+
+ip netns add "$ns0"
+ip -net "$ns0" link set lo up
+ip -net "$ns0" addr add 127.0.0.1 dev lo
+
+trap cleanup EXIT
+
+currentyear=$(date +%Y)
+lastyear=$((currentyear-1))
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table inet filter {
+	counter iifcount {}
+	counter iifnamecount {}
+	counter iifgroupcount {}
+	counter iiftypecount {}
+	counter infproto4count {}
+	counter il4protocounter {}
+	counter imarkcounter {}
+	counter icpu0counter {}
+	counter ilastyearcounter {}
+	counter icurrentyearcounter {}
+
+	counter oifcount {}
+	counter oifnamecount {}
+	counter oifgroupcount {}
+	counter oiftypecount {}
+	counter onfproto4count {}
+	counter ol4protocounter {}
+	counter oskuidcounter {}
+	counter oskgidcounter {}
+	counter omarkcounter {}
+
+	chain input {
+		type filter hook input priority 0; policy accept;
+
+		meta iif lo counter name "iifcount"
+		meta iifname "lo" counter name "iifnamecount"
+		meta iifgroup "default" counter name "iifgroupcount"
+		meta iiftype "loopback" counter name "iiftypecount"
+		meta nfproto ipv4 counter name "infproto4count"
+		meta l4proto icmp counter name "il4protocounter"
+		meta mark 42 counter name "imarkcounter"
+		meta cpu 0 counter name "icpu0counter"
+		meta time "$lastyear-01-01" - "$lastyear-12-31" counter name ilastyearcounter
+		meta time "$currentyear-01-01" - "$currentyear-12-31" counter name icurrentyearcounter
+	}
+
+	chain output {
+		type filter hook output priority 0; policy accept;
+		meta oif lo counter name "oifcount" counter
+		meta oifname "lo" counter name "oifnamecount"
+		meta oifgroup "default" counter name "oifgroupcount"
+		meta oiftype "loopback" counter name "oiftypecount"
+		meta nfproto ipv4 counter name "onfproto4count"
+		meta l4proto icmp counter name "ol4protocounter"
+		meta skuid 0 counter name "oskuidcounter"
+		meta skgid 0 counter name "oskgidcounter"
+		meta mark 42 counter name "omarkcounter"
+	}
+}
+EOF
+
+if [ $? -ne 0 ]; then
+	echo "SKIP: Could not add test ruleset"
+	exit $ksft_skip
+fi
+
+ret=0
+
+check_one_counter()
+{
+	local cname="$1"
+	local want="packets $2"
+	local verbose="$3"
+
+	if ! ip netns exec "$ns0" nft list counter inet filter "$cname" | grep -q "$want"; then
+		echo "FAIL: $cname, want \"$want\", got"
+		ret=1
+		ip netns exec "$ns0" nft list counter inet filter "$cname"
+	fi
+}
+
+check_lo_counters()
+{
+	local want="$1"
+	local verbose="$2"
+	local counter
+
+	for counter in iifcount iifnamecount iifgroupcount iiftypecount infproto4count \
+		       oifcount oifnamecount oifgroupcount oiftypecount onfproto4count \
+		       il4protocounter icurrentyearcounter ol4protocounter \
+	     ; do
+		check_one_counter "$counter" "$want" "$verbose"
+	done
+}
+
+check_lo_counters "0" false
+ip netns exec "$ns0" ping -q -c 1 127.0.0.1 -m 42 > /dev/null
+
+check_lo_counters "2" true
+
+check_one_counter oskuidcounter "1" true
+check_one_counter oskgidcounter "1" true
+check_one_counter imarkcounter "1" true
+check_one_counter omarkcounter "1" true
+check_one_counter ilastyearcounter "0" true
+
+if [ $ret -eq 0 ];then
+	echo "OK: nftables meta iif/oif counters at expected values"
+else
+	exit $ret
+fi
+
+#First CPU execution and counter
+taskset -p 01 $$ > /dev/null
+ip netns exec "$ns0" nft reset counters > /dev/null
+ip netns exec "$ns0" ping -q -c 1 127.0.0.1 > /dev/null
+check_one_counter icpu0counter "2" true
+
+if [ $ret -eq 0 ];then
+	echo "OK: nftables meta cpu counter at expected values"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_nat.sh b/tools/testing/selftests/net/netfilter/nft_nat.sh
new file mode 100755
index 000000000000..b3ec2d0a3f56
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_nat.sh
@@ -0,0 +1,1227 @@
+#!/bin/bash
+#
+# This test is for basic NAT functionality: snat, dnat, redirect, masquerade.
+#
+
+source lib.sh
+
+ret=0
+test_inet_nat=true
+
+checktool "nft --version" "run test without nft tool"
+checktool "socat -h" "run test without socat"
+
+cleanup()
+{
+	ip netns pids "$ns0" | xargs kill 2>/dev/null
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+
+	rm -f "$INFILE" "$OUTFILE"
+
+	cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+INFILE=$(mktemp)
+OUTFILE=$(mktemp)
+
+setup_ns ns0 ns1 ns2
+
+if ! ip link add veth0 netns "$ns0" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1;then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+ip link add veth1 netns "$ns0" type veth peer name eth0 netns "$ns2"
+
+ip -net "$ns0" link set veth0 up
+ip -net "$ns0" addr add 10.0.1.1/24 dev veth0
+ip -net "$ns0" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$ns0" link set veth1 up
+ip -net "$ns0" addr add 10.0.2.1/24 dev veth1
+ip -net "$ns0" addr add dead:2::1/64 dev veth1 nodad
+
+do_config()
+{
+	ns="$1"
+	subnet="$2"
+
+	ip -net "$ns" link set eth0 up
+	ip -net "$ns" addr add "10.0.$subnet.99/24" dev eth0
+	ip -net "$ns" route add default via "10.0.$subnet.1"
+	ip -net "$ns" addr add "dead:$subnet::99/64" dev eth0 nodad
+	ip -net "$ns" route add default via "dead:$subnet::1"
+}
+
+do_config "$ns1" 1
+do_config "$ns2" 2
+
+bad_counter()
+{
+	local ns=$1
+	local counter=$2
+	local expect=$3
+	local tag=$4
+
+	echo "ERROR: $counter counter in $ns has unexpected value (expected $expect) at $tag" 1>&2
+	ip netns exec "$ns" nft list counter inet filter "$counter" 1>&2
+}
+
+check_counters()
+{
+	ns=$1
+	local lret=0
+
+	if ! ip netns exec "$ns" nft list counter inet filter ns0in | grep -q "packets 1 bytes 84";then
+		bad_counter "$ns" ns0in "packets 1 bytes 84" "check_counters 1"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns" nft list counter inet filter ns0out | grep -q "packets 1 bytes 84";then
+		bad_counter "$ns" ns0out "packets 1 bytes 84" "check_counters 2"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 104"
+	if ! ip netns exec "$ns" nft list counter inet filter ns0in6 | grep -q "$expect";then
+		bad_counter "$ns" ns0in6 "$expect" "check_counters 3"
+		lret=1
+	fi
+	if ! ip netns exec "$ns" nft list counter inet filter ns0out6 | grep -q "$expect";then
+		bad_counter "$ns" ns0out6 "$expect" "check_counters 4"
+		lret=1
+	fi
+
+	return $lret
+}
+
+check_ns0_counters()
+{
+	local ns=$1
+	local lret=0
+
+	if ! ip netns exec "$ns0" nft list counter inet filter ns0in | grep -q "packets 0 bytes 0";then
+		bad_counter "$ns0" ns0in "packets 0 bytes 0" "check_ns0_counters 1"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns0" nft list counter inet filter ns0in6 | grep -q "packets 0 bytes 0";then
+		bad_counter "$ns0" ns0in6 "packets 0 bytes 0"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns0" nft list counter inet filter ns0out | grep -q "packets 0 bytes 0";then
+		bad_counter "$ns0" ns0out "packets 0 bytes 0" "check_ns0_counters 2"
+		lret=1
+	fi
+	if ! ip netns exec "$ns0" nft list counter inet filter ns0out6 | grep -q "packets 0 bytes 0";then
+		bad_counter "$ns0" ns0out6 "packets 0 bytes 0" "check_ns0_counters3 "
+		lret=1
+	fi
+
+	for dir in "in" "out" ; do
+		expect="packets 1 bytes 84"
+		if ! ip netns exec "$ns0" nft list counter inet filter "${ns}${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" "$ns${dir}" "$expect" "check_ns0_counters 4"
+			lret=1
+		fi
+
+		expect="packets 1 bytes 104"
+		if ! ip netns exec "$ns0" nft list counter inet filter "${ns}${dir}6" | grep -q "$expect";then
+			bad_counter "$ns0" "$ns${dir}6" "$expect" "check_ns0_counters 5"
+			lret=1
+		fi
+	done
+
+	return $lret
+}
+
+reset_counters()
+{
+	for i in "$ns0" "$ns1" "$ns2" ;do
+		ip netns exec "$i" nft reset counters inet > /dev/null
+	done
+}
+
+test_local_dnat6()
+{
+	local family=$1
+	local lret=0
+	local IPF=""
+
+	if [ "$family" = "inet" ];then
+		IPF="ip6"
+	fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain output {
+		type nat hook output priority 0; policy accept;
+		ip6 daddr dead:1::99 dnat $IPF to dead:2::99
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family dnat hook"
+		return $ksft_skip
+	fi
+
+	# ping netns1, expect rewrite to netns2
+	if ! ip netns exec "$ns0" ping -q -c 1 dead:1::99 > /dev/null;then
+		lret=1
+		echo "ERROR: ping6 failed"
+		return $lret
+	fi
+
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" ns1$dir "$expect" "test_local_dnat6 1"
+			lret=1
+		fi
+	done
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat6 2"
+			lret=1
+		fi
+	done
+
+	# expect 0 count in ns1
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_local_dnat6 3"
+			lret=1
+		fi
+	done
+
+	# expect 1 packet in ns2
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat6 4"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ipv6 ping to $ns1 was $family NATted to $ns2"
+	ip netns exec "$ns0" nft flush chain ip6 nat output
+
+	return $lret
+}
+
+test_local_dnat()
+{
+	local family=$1
+	local lret=0
+	local IPF=""
+
+	if [ "$family" = "inet" ];then
+		IPF="ip"
+	fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF 2>/dev/null
+table $family nat {
+	chain output {
+		type nat hook output priority 0; policy accept;
+		ip daddr 10.0.1.99 dnat $IPF to 10.0.2.99
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		if [ "$family" = "inet" ];then
+			echo "SKIP: inet nat tests"
+			test_inet_nat=false
+			return $ksft_skip
+		fi
+		echo "SKIP: Could not add add $family dnat hook"
+		return $ksft_skip
+	fi
+
+	# ping netns1, expect rewrite to netns2
+	if ! ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null;then
+		lret=1
+		echo "ERROR: ping failed"
+		return $lret
+	fi
+
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" "ns1$dir" "$expect" "test_local_dnat 1"
+			lret=1
+		fi
+	done
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" "ns2$dir" "$expect" "test_local_dnat 2"
+			lret=1
+		fi
+	done
+
+	# expect 0 count in ns1
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter ns0${dir} | grep -q "$expect";then
+			bad_counter "$ns1" "ns0$dir" "$expect" "test_local_dnat 3"
+			lret=1
+		fi
+	done
+
+	# expect 1 packet in ns2
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns2" nft list counter inet filter ns0${dir} | grep -q "$expect";then
+			bad_counter "$ns2" "ns0$dir" "$expect" "test_local_dnat 4"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ping to $ns1 was $family NATted to $ns2"
+
+	ip netns exec "$ns0" nft flush chain "$family" nat output
+
+	reset_counters
+	if ! ip netns exec "$ns0" ping -q -c 1 10.0.1.99 > /dev/null;then
+		lret=1
+		echo "ERROR: ping failed"
+		return $lret
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns1$dir "$expect" "test_local_dnat 5"
+			lret=1
+		fi
+	done
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" ns2$dir "$expect" "test_local_dnat 6"
+			lret=1
+		fi
+	done
+
+	# expect 1 count in ns1
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" ns0$dir "$expect" "test_local_dnat 7"
+			lret=1
+		fi
+	done
+
+	# expect 0 packet in ns2
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" ns0$dir "$expect" "test_local_dnat 8"
+			lret=1
+		fi
+	done
+
+	test $lret -eq 0 && echo "PASS: ping to $ns1 OK after $family nat output chain flush"
+
+	return $lret
+}
+
+listener_ready()
+{
+	local ns="$1"
+	local port="$2"
+	local proto="$3"
+	ss -N "$ns" -ln "$proto" -o "sport = :$port" | grep -q "$port"
+}
+
+test_local_dnat_portonly()
+{
+	local family=$1
+	local daddr=$2
+	local lret=0
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain output {
+		type nat hook output priority 0; policy accept;
+		meta l4proto tcp dnat to :2000
+
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		if [ "$family" = "inet" ];then
+			echo "SKIP: inet port test"
+			test_inet_nat=false
+			return
+		fi
+		echo "SKIP: Could not add $family dnat hook"
+		return
+	fi
+
+	echo "SERVER-$family" | ip netns exec "$ns1" timeout 3 socat -u STDIN TCP-LISTEN:2000 &
+
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$ns1" 2000 "-t"
+
+	result=$(ip netns exec "$ns0" timeout 1 socat -u TCP:"$daddr":2000 STDOUT)
+
+	if [ "$result" = "SERVER-inet" ];then
+		echo "PASS: inet port rewrite without l3 address"
+	else
+		echo "ERROR: inet port rewrite without l3 address, got $result"
+		ret=1
+	fi
+}
+
+test_masquerade6()
+{
+	local family=$1
+	local natflags=$2
+	local lret=0
+
+	ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+	if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 via ipv6"
+		return 1
+	fi
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" "ns2$dir" "$expect" "test_masquerade6 1"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade6 2"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add masquerading rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		meta oif veth0 masquerade $natflags
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family masquerade hook"
+		return $ksft_skip
+	fi
+
+	if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
+		lret=1
+	fi
+
+	# ns1 should have seen packets from ns0, due to masquerade
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 3"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" ns1$dir "$expect" "test_masquerade6 4"
+			lret=1
+		fi
+	done
+
+	# ns1 should not have seen packets from ns2, due to masquerade
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_masquerade6 5"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" "ns1$dir" "$expect" "test_masquerade6 6"
+			lret=1
+		fi
+	done
+
+	if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 with active ipv6 masquerade $natflags (attempt 2)"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns0" nft flush chain "$family" nat postrouting;then
+		echo "ERROR: Could not flush $family nat postrouting" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: $family IPv6 masquerade $natflags for $ns2"
+
+	return $lret
+}
+
+test_masquerade()
+{
+	local family=$1
+	local natflags=$2
+	local lret=0
+
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 $natflags"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" "ns2$dir" "$expect" "test_masquerade 1"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade 2"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add masquerading rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		meta oif veth0 masquerade $natflags
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family masquerade hook"
+		return $ksft_skip
+	fi
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 with active $family masquerade $natflags"
+		lret=1
+	fi
+
+	# ns1 should have seen packets from ns0, due to masquerade
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns0${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" "ns0$dir" "$expect" "test_masquerade 3"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" "ns1$dir" "$expect" "test_masquerade 4"
+			lret=1
+		fi
+	done
+
+	# ns1 should not have seen packets from ns2, due to masquerade
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" "ns0$dir" "$expect" "test_masquerade 5"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" "ns1$dir" "$expect" "test_masquerade 6"
+			lret=1
+		fi
+	done
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 with active ip masquerade $natflags (attempt 2)"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns0" nft flush chain "$family" nat postrouting; then
+		echo "ERROR: Could not flush $family nat postrouting" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: $family IP masquerade $natflags for $ns2"
+
+	return $lret
+}
+
+test_redirect6()
+{
+	local family=$1
+	local lret=0
+
+	ip netns exec "$ns0" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+
+	if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 via ipv6"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns2$dir "$expect" "test_redirect6 1"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter "ns1${dir}" | grep -q "$expect";then
+			bad_counter "$ns2" ns1$dir "$expect" "test_redirect6 2"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add redirect rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain prerouting {
+		type nat hook prerouting priority 0; policy accept;
+		meta iif veth1 meta l4proto icmpv6 ip6 saddr dead:2::99 ip6 daddr dead:1::99 redirect
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family redirect hook"
+		return $ksft_skip
+	fi
+
+	if ! ip netns exec "$ns2" ping -q -c 1 dead:1::99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 via ipv6 with active $family redirect"
+		lret=1
+	fi
+
+	# ns1 should have seen no packets from ns2, due to redirection
+	expect="packets 0 bytes 0"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 3"
+			lret=1
+		fi
+	done
+
+	# ns0 should have seen packets from ns2, due to masquerade
+	expect="packets 1 bytes 104"
+	for dir in "in6" "out6" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_redirect6 4"
+			lret=1
+		fi
+	done
+
+	if ! ip netns exec "$ns0" nft delete table "$family" nat;then
+		echo "ERROR: Could not delete $family nat table" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: $family IPv6 redirection for $ns2"
+
+	return $lret
+}
+
+test_redirect()
+{
+	local family=$1
+	local lret=0
+
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2"
+		lret=1
+	fi
+
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" "$ns2$dir" "$expect" "test_redirect 1"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect";then
+			bad_counter "$ns2" ns1$dir "$expect" "test_redirect 2"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+# add redirect rule
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain prerouting {
+		type nat hook prerouting priority 0; policy accept;
+		meta iif veth1 ip protocol icmp ip saddr 10.0.2.99 ip daddr 10.0.1.99 redirect
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family redirect hook"
+		return $ksft_skip
+	fi
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 with active $family ip redirect"
+		lret=1
+	fi
+
+	# ns1 should have seen no packets from ns2, due to redirection
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+
+		if ! ip netns exec "$ns1" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_redirect 3"
+			lret=1
+		fi
+	done
+
+	# ns0 should have seen packets from ns2, due to masquerade
+	expect="packets 1 bytes 84"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns0" nft list counter inet filter "ns2${dir}" | grep -q "$expect";then
+			bad_counter "$ns0" ns0$dir "$expect" "test_redirect 4"
+			lret=1
+		fi
+	done
+
+	if ! ip netns exec "$ns0" nft delete table "$family" nat;then
+		echo "ERROR: Could not delete $family nat table" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: $family IP redirection for $ns2"
+
+	return $lret
+}
+
+# test port shadowing.
+# create two listening services, one on router (ns0), one
+# on client (ns2), which is masqueraded from ns1 point of view.
+# ns2 sends udp packet coming from service port to ns1, on a highport.
+# Later, if n1 uses same highport to connect to ns0:service, packet
+# might be port-forwarded to ns2 instead.
+
+# second argument tells if we expect the 'fake-entry' to take effect
+# (CLIENT) or not (ROUTER).
+test_port_shadow()
+{
+	local test=$1
+	local expect=$2
+	local daddrc="10.0.1.99"
+	local daddrs="10.0.1.1"
+	local result=""
+	local logmsg=""
+
+	# make shadow entry, from client (ns2), going to (ns1), port 41404, sport 1405.
+	echo "fake-entry" | ip netns exec "$ns2" timeout 1 socat -u STDIN UDP:"$daddrc":41404,sourceport=1405
+
+	echo ROUTER | ip netns exec "$ns0" timeout 3 socat -T 3 -u STDIN UDP4-LISTEN:1405 2>/dev/null &
+	local sc_r=$!
+	echo CLIENT | ip netns exec "$ns2" timeout 3 socat -T 3 -u STDIN UDP4-LISTEN:1405,reuseport 2>/dev/null &
+	local sc_c=$!
+
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$ns0" 1405 "-u"
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$ns2" 1405 "-u"
+
+	# ns1 tries to connect to ns0:1405.  With default settings this should connect
+	# to client, it matches the conntrack entry created above.
+
+	result=$(echo "data" | ip netns exec "$ns1" timeout 1 socat - UDP:"$daddrs":1405,sourceport=41404)
+
+	if [ "$result" = "$expect" ] ;then
+		echo "PASS: portshadow test $test: got reply from ${expect}${logmsg}"
+	else
+		echo "ERROR: portshadow test $test: got reply from \"$result\", not $expect as intended"
+		ret=1
+	fi
+
+	kill $sc_r $sc_c 2>/dev/null
+
+	# flush udp entries for next test round, if any
+	ip netns exec "$ns0" conntrack -F >/dev/null 2>&1
+}
+
+# This prevents port shadow of router service via packet filter,
+# packets claiming to originate from service port from internal
+# network are dropped.
+test_port_shadow_filter()
+{
+	local family=$1
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family filter {
+	chain forward {
+		type filter hook forward priority 0; policy accept;
+		meta iif veth1 udp sport 1405 drop
+	}
+}
+EOF
+	test_port_shadow "port-filter" "ROUTER"
+
+	ip netns exec "$ns0" nft delete table "$family" filter
+}
+
+# This prevents port shadow of router service via notrack.
+test_port_shadow_notrack()
+{
+	local family=$1
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family raw {
+	chain prerouting {
+		type filter hook prerouting priority -300; policy accept;
+		meta iif veth0 udp dport 1405 notrack
+	}
+	chain output {
+		type filter hook output priority -300; policy accept;
+		meta oif veth0 udp sport 1405 notrack
+	}
+}
+EOF
+	test_port_shadow "port-notrack" "ROUTER"
+
+	ip netns exec "$ns0" nft delete table "$family" raw
+}
+
+# This prevents port shadow of router service via sport remap.
+test_port_shadow_pat()
+{
+	local family=$1
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family pat {
+	chain postrouting {
+		type nat hook postrouting priority -1; policy accept;
+		meta iif veth1 udp sport <= 1405 masquerade to : 1406-65535 random
+	}
+}
+EOF
+	test_port_shadow "pat" "ROUTER"
+
+	ip netns exec "$ns0" nft delete table "$family" pat
+}
+
+test_port_shadowing()
+{
+	local family="ip"
+
+	if ! conntrack -h >/dev/null 2>&1;then
+		echo "SKIP: Could not run nat port shadowing test without conntrack tool"
+		return
+	fi
+
+	if ! socat -h > /dev/null 2>&1;then
+		echo "SKIP: Could not run nat port shadowing test without socat tool"
+		return
+	fi
+
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table $family nat {
+	chain postrouting {
+		type nat hook postrouting priority 0; policy accept;
+		meta oif veth0 masquerade
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add add $family masquerade hook"
+		return $ksft_skip
+	fi
+
+	# test default behaviour. Packet from ns1 to ns0 is redirected to ns2.
+	test_port_shadow "default" "CLIENT"
+
+	# test packet filter based mitigation: prevent forwarding of
+	# packets claiming to come from the service port.
+	test_port_shadow_filter "$family"
+
+	# test conntrack based mitigation: connections going or coming
+	# from router:service bypass connection tracking.
+	test_port_shadow_notrack "$family"
+
+	# test nat based mitigation: forwarded packets coming from service port
+	# are masqueraded with random highport.
+	test_port_shadow_pat "$family"
+
+	ip netns exec "$ns0" nft delete table $family nat
+}
+
+file_cmp()
+{
+	local infile="$1"
+	local outfile="$2"
+
+	if ! cmp "$infile" "$outfile";then
+		echo -n "Infile "
+		ls -l "$infile"
+		echo -n "Outfile "
+		ls -l "$outfile"
+		echo "ERROR: in and output file mismatch when checking $msg" 1>&1
+		ret=1
+		return 1
+	fi
+
+	return 0
+}
+
+test_stateless_nat_ip()
+{
+	local lret=0
+
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+	ip netns exec "$ns0" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null;then
+		echo "ERROR: cannot ping $ns1 from $ns2 before loading stateless rules"
+		return 1
+	fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+table ip stateless {
+	map xlate_in {
+		typeof meta iifname . ip saddr . ip daddr : ip daddr
+		elements = {
+			"veth1" . 10.0.2.99 . 10.0.1.99 : 10.0.2.2,
+		}
+	}
+	map xlate_out {
+		typeof meta iifname . ip saddr . ip daddr : ip daddr
+		elements = {
+			"veth0" . 10.0.1.99 . 10.0.2.2 : 10.0.2.99
+		}
+	}
+
+	chain prerouting {
+		type filter hook prerouting priority -400; policy accept;
+		ip saddr set meta iifname . ip saddr . ip daddr map @xlate_in
+		ip daddr set meta iifname . ip saddr . ip daddr map @xlate_out
+	}
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add ip statless rules"
+		return $ksft_skip
+	fi
+
+	reset_counters
+
+	if ! ip netns exec "$ns2" ping -q -c 1 10.0.1.99 > /dev/null; then
+		echo "ERROR: cannot ping $ns1 from $ns2 with stateless rules"
+		lret=1
+	fi
+
+	# ns1 should have seen packets from .2.2, due to stateless rewrite.
+	expect="packets 1 bytes 84"
+	if ! ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect";then
+		bad_counter "$ns1" ns0insl "$expect" "test_stateless 1"
+		lret=1
+	fi
+
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns2" nft list counter inet filter ns1${dir} | grep -q "$expect";then
+			bad_counter "$ns2" ns1$dir "$expect" "test_stateless 2"
+			lret=1
+		fi
+	done
+
+	# ns1 should not have seen packets from ns2, due to masquerade
+	expect="packets 0 bytes 0"
+	for dir in "in" "out" ; do
+		if ! ip netns exec "$ns1" nft list counter inet filter ns2${dir} | grep -q "$expect";then
+			bad_counter "$ns1" ns0$dir "$expect" "test_stateless 3"
+			lret=1
+		fi
+
+		if ! ip netns exec "$ns0" nft list counter inet filter ns1${dir} | grep -q "$expect";then
+			bad_counter "$ns0" ns1$dir "$expect" "test_stateless 4"
+			lret=1
+		fi
+	done
+
+	reset_counters
+
+	if ! socat -h > /dev/null 2>&1;then
+		echo "SKIP: Could not run stateless nat frag test without socat tool"
+		if [ $lret -eq 0 ]; then
+			return $ksft_skip
+		fi
+
+		ip netns exec "$ns0" nft delete table ip stateless
+		return $lret
+	fi
+
+	dd if=/dev/urandom of="$INFILE" bs=4096 count=1 2>/dev/null
+
+	ip netns exec "$ns1" timeout 3 socat -u UDP4-RECV:4233 OPEN:"$OUTFILE" < /dev/null 2>/dev/null &
+
+	busywait $BUSYWAIT_TIMEOUT listener_ready "$ns1" 4233 "-u"
+
+	# re-do with large ping -> ip fragmentation
+	if ! ip netns exec "$ns2" timeout 3 socat -u STDIN UDP4-SENDTO:"10.0.1.99:4233" < "$INFILE" > /dev/null;then
+		echo "ERROR: failed to test udp $ns1 to $ns2 with stateless ip nat" 1>&2
+		lret=1
+	fi
+
+	wait
+
+	file_cmp "$INFILE" "$OUTFILE" "udp with stateless nat" || lret=1
+
+	:> "$OUTFILE"
+
+	# ns1 should have seen packets from 2.2, due to stateless rewrite.
+	expect="packets 3 bytes 4164"
+	if ! ip netns exec "$ns1" nft list counter inet filter ns0insl | grep -q "$expect";then
+		bad_counter "$ns1" ns0insl "$expect" "test_stateless 5"
+		lret=1
+	fi
+
+	if ! ip netns exec "$ns0" nft delete table ip stateless; then
+		echo "ERROR: Could not delete table ip stateless" 1>&2
+		lret=1
+	fi
+
+	test $lret -eq 0 && echo "PASS: IP statless for $ns2"
+
+	return $lret
+}
+
+test_dnat_clash()
+{
+	local lret=0
+
+	if ! socat -h > /dev/null 2>&1;then
+		echo "SKIP: Could not run dnat clash test without socat tool"
+		[ $ret -eq 0 ] && ret=$ksft_skip
+		return $ksft_skip
+	fi
+
+ip netns exec "$ns0" nft -f /dev/stdin <<EOF
+flush ruleset
+table ip dnat-test {
+ chain prerouting {
+  type nat hook prerouting priority dstnat; policy accept;
+  ip daddr 10.0.2.1 udp dport 1234 counter dnat to 10.0.1.1:1234
+ }
+}
+EOF
+	if [ $? -ne 0 ]; then
+		echo "SKIP: Could not add dnat rules"
+		[ $ret -eq 0 ] && ret=$ksft_skip
+		return $ksft_skip
+	fi
+
+	local udpdaddr="10.0.2.1"
+	for i in 1 2;do
+		echo "PING $udpdaddr" > "$INFILE"
+		echo "PONG 10.0.1.1 step $i" | ip netns exec "$ns0" timeout 3 socat STDIO UDP4-LISTEN:1234,bind=10.0.1.1 > "$OUTFILE" 2>/dev/null &
+		local lpid=$!
+
+		busywait $BUSYWAIT_TIMEOUT listener_ready "$ns0" 1234 "-u"
+
+		result=$(ip netns exec "$ns1" timeout 3 socat STDIO UDP4-SENDTO:"$udpdaddr:1234,sourceport=4321" < "$INFILE")
+		udpdaddr="10.0.1.1"
+
+		if [ "$result" != "PONG 10.0.1.1 step $i" ] ; then
+			echo "ERROR: failed to test udp $ns1 to $ns2 with dnat rule step $i, result: \"$result\"" 1>&2
+			lret=1
+			ret=1
+		fi
+
+		wait
+
+		file_cmp "$INFILE" "$OUTFILE" "udp dnat step $i" || lret=1
+
+		:> "$OUTFILE"
+	done
+
+	test $lret -eq 0 && echo "PASS: IP dnat clash $ns1:$ns2"
+
+	ip netns exec "$ns0" nft flush ruleset
+
+	return $lret
+}
+
+# ip netns exec "$ns0" ping -c 1 -q 10.0.$i.99
+for i in "$ns0" "$ns1" "$ns2" ;do
+ip netns exec "$i" nft -f /dev/stdin <<EOF
+table inet filter {
+	counter ns0in {}
+	counter ns1in {}
+	counter ns2in {}
+
+	counter ns0out {}
+	counter ns1out {}
+	counter ns2out {}
+
+	counter ns0in6 {}
+	counter ns1in6 {}
+	counter ns2in6 {}
+
+	counter ns0out6 {}
+	counter ns1out6 {}
+	counter ns2out6 {}
+
+	map nsincounter {
+		type ipv4_addr : counter
+		elements = { 10.0.1.1 : "ns0in",
+			     10.0.2.1 : "ns0in",
+			     10.0.1.99 : "ns1in",
+			     10.0.2.99 : "ns2in" }
+	}
+
+	map nsincounter6 {
+		type ipv6_addr : counter
+		elements = { dead:1::1 : "ns0in6",
+			     dead:2::1 : "ns0in6",
+			     dead:1::99 : "ns1in6",
+			     dead:2::99 : "ns2in6" }
+	}
+
+	map nsoutcounter {
+		type ipv4_addr : counter
+		elements = { 10.0.1.1 : "ns0out",
+			     10.0.2.1 : "ns0out",
+			     10.0.1.99: "ns1out",
+			     10.0.2.99: "ns2out" }
+	}
+
+	map nsoutcounter6 {
+		type ipv6_addr : counter
+		elements = { dead:1::1 : "ns0out6",
+			     dead:2::1 : "ns0out6",
+			     dead:1::99 : "ns1out6",
+			     dead:2::99 : "ns2out6" }
+	}
+
+	chain input {
+		type filter hook input priority 0; policy accept;
+		counter name ip saddr map @nsincounter
+		icmpv6 type { "echo-request", "echo-reply" } counter name ip6 saddr map @nsincounter6
+	}
+	chain output {
+		type filter hook output priority 0; policy accept;
+		counter name ip daddr map @nsoutcounter
+		icmpv6 type { "echo-request", "echo-reply" } counter name ip6 daddr map @nsoutcounter6
+	}
+}
+EOF
+done
+
+# special case for stateless nat check, counter needs to
+# be done before (input) ip defragmentation
+ip netns exec "$ns1" nft -f /dev/stdin <<EOF
+table inet filter {
+	counter ns0insl {}
+
+	chain pre {
+		type filter hook prerouting priority -400; policy accept;
+		ip saddr 10.0.2.2 counter name "ns0insl"
+	}
+}
+EOF
+
+ping_basic()
+{
+	i="$1"
+	if ! ip netns exec "$ns0" ping -c 1 -q 10.0."$i".99 > /dev/null;then
+		echo "ERROR: Could not reach other namespace(s)" 1>&2
+		ret=1
+	fi
+
+	if ! ip netns exec "$ns0" ping -c 1 -q dead:"$i"::99 > /dev/null;then
+		echo "ERROR: Could not reach other namespace(s) via ipv6" 1>&2
+		ret=1
+	fi
+}
+
+test_basic_conn()
+{
+	local nsexec
+	name="$1"
+
+	nsexec=$(eval echo \$"$1")
+
+	ping_basic 1
+	ping_basic 2
+
+	if ! check_counters "$nsexec";then
+		return 1
+	fi
+
+	if ! check_ns0_counters "$name";then
+		return 1
+	fi
+
+	reset_counters
+	return 0
+}
+
+if ! test_basic_conn "ns1" ; then
+	echo "ERROR: basic test for ns1 failed" 1>&2
+	exit 1
+fi
+if ! test_basic_conn "ns2"; then
+	echo "ERROR: basic test for ns1 failed" 1>&2
+fi
+
+if [ $ret -eq 0 ];then
+	echo "PASS: netns routing/connectivity: $ns0 can reach $ns1 and $ns2"
+fi
+
+reset_counters
+test_local_dnat ip
+test_local_dnat6 ip6
+
+reset_counters
+test_local_dnat_portonly inet 10.0.1.99
+
+reset_counters
+$test_inet_nat && test_local_dnat inet
+$test_inet_nat && test_local_dnat6 inet
+
+for flags in "" "fully-random"; do
+reset_counters
+test_masquerade ip $flags
+test_masquerade6 ip6 $flags
+reset_counters
+$test_inet_nat && test_masquerade inet $flags
+$test_inet_nat && test_masquerade6 inet $flags
+done
+
+reset_counters
+test_redirect ip
+test_redirect6 ip6
+reset_counters
+$test_inet_nat && test_redirect inet
+$test_inet_nat && test_redirect6 inet
+
+test_port_shadowing
+test_stateless_nat_ip
+test_dnat_clash
+
+if [ $ret -ne 0 ];then
+	echo -n "FAIL: "
+	nft --version
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_nat_zones.sh b/tools/testing/selftests/net/netfilter/nft_nat_zones.sh
new file mode 100755
index 000000000000..9f200f80253a
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_nat_zones.sh
@@ -0,0 +1,265 @@
+#!/bin/bash
+#
+# Test connection tracking zone and NAT source port reallocation support.
+#
+
+source lib.sh
+
+# Don't increase too much, 2000 clients should work
+# just fine but script can then take several minutes with
+# KASAN/debug builds.
+maxclients=100
+
+have_socat=0
+ret=0
+
+[ "$KSFT_MACHINE_SLOW" = yes ] && maxclients=40
+# client1---.
+#            veth1-.
+#                  |
+#               NAT Gateway --veth0--> Server
+#                  | |
+#            veth2-' |
+# client2---'        |
+#  ....              |
+# clientX----vethX---'
+
+# All clients share identical IP address.
+# NAT Gateway uses policy routing and conntrack zones to isolate client
+# namespaces.  Each client connects to Server, each with colliding tuples:
+#   clientsaddr:10000 -> serveraddr:dport
+#   NAT Gateway is supposed to do port reallocation for each of the
+#   connections.
+
+v4gc1=$(sysctl -n net.ipv4.neigh.default.gc_thresh1 2>/dev/null)
+v4gc2=$(sysctl -n net.ipv4.neigh.default.gc_thresh2 2>/dev/null)
+v4gc3=$(sysctl -n net.ipv4.neigh.default.gc_thresh3 2>/dev/null)
+v6gc1=$(sysctl -n net.ipv6.neigh.default.gc_thresh1 2>/dev/null)
+v6gc2=$(sysctl -n net.ipv6.neigh.default.gc_thresh2 2>/dev/null)
+v6gc3=$(sysctl -n net.ipv6.neigh.default.gc_thresh3 2>/dev/null)
+
+cleanup()
+{
+	cleanup_all_ns
+
+	sysctl -q net.ipv4.neigh.default.gc_thresh1="$v4gc1" 2>/dev/null
+	sysctl -q net.ipv4.neigh.default.gc_thresh2="$v4gc2" 2>/dev/null
+	sysctl -q net.ipv4.neigh.default.gc_thresh3="$v4gc3" 2>/dev/null
+	sysctl -q net.ipv6.neigh.default.gc_thresh1="$v6gc1" 2>/dev/null
+	sysctl -q net.ipv6.neigh.default.gc_thresh2="$v6gc2" 2>/dev/null
+	sysctl -q net.ipv6.neigh.default.gc_thresh3="$v6gc3" 2>/dev/null
+}
+
+checktool "nft --version" echo "run test without nft tool"
+checktool "conntrack -V" "run test without conntrack tool"
+
+if socat -h >/dev/null 2>&1; then
+	have_socat=1
+fi
+
+setup_ns gw srv
+
+trap cleanup EXIT
+
+ip link add veth0 netns "$gw" type veth peer name eth0 netns "$srv"
+ip -net "$gw" link set veth0 up
+ip -net "$srv" link set eth0 up
+
+sysctl -q net.ipv6.neigh.default.gc_thresh1=512  2>/dev/null
+sysctl -q net.ipv6.neigh.default.gc_thresh2=1024 2>/dev/null
+sysctl -q net.ipv6.neigh.default.gc_thresh3=4096 2>/dev/null
+sysctl -q net.ipv4.neigh.default.gc_thresh1=512  2>/dev/null
+sysctl -q net.ipv4.neigh.default.gc_thresh2=1024 2>/dev/null
+sysctl -q net.ipv4.neigh.default.gc_thresh3=4096 2>/dev/null
+
+for i in $(seq 1 "$maxclients");do
+  setup_ns "cl$i"
+
+  cl=$(eval echo \$cl"$i")
+  if ! ip link add veth"$i" netns "$gw" type veth peer name eth0 netns "$cl" > /dev/null 2>&1;then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+  fi
+done
+
+for i in $(seq 1 "$maxclients");do
+  cl=$(eval echo \$cl"$i")
+  echo netns exec "$cl" ip link set eth0 up
+  echo netns exec "$cl" sysctl -q net.ipv4.tcp_syn_retries=2
+  echo netns exec "$gw" ip link set "veth$i" up
+  echo netns exec "$gw" sysctl -q net.ipv4.conf.veth"$i".arp_ignore=2
+
+  # clients have same IP addresses.
+  echo netns exec "$cl" ip addr add 10.1.0.3/24 dev eth0
+  echo netns exec "$cl" ip addr add dead:1::3/64 dev eth0 nodad
+  echo netns exec "$cl" ip route add default via 10.1.0.2 dev eth0
+  echo netns exec "$cl" ip route add default via dead:1::2 dev eth0
+
+  # NB: same addresses on client-facing interfaces.
+  echo netns exec "$gw" ip addr add 10.1.0.2/24 dev "veth$i"
+  echo netns exec "$gw" ip addr add dead:1::2/64 dev "veth$i" nodad
+
+  # gw: policy routing
+  echo netns exec "$gw" ip route add 10.1.0.0/24 dev "veth$i" table $((1000+i))
+  echo netns exec "$gw" ip route add dead:1::0/64 dev "veth$i" table $((1000+i))
+  echo netns exec "$gw" ip route add 10.3.0.0/24 dev veth0 table $((1000+i))
+  echo netns exec "$gw" ip route add dead:3::0/64 dev veth0 table $((1000+i))
+  echo netns exec "$gw" ip rule add fwmark "$i" lookup $((1000+i))
+done | ip -batch /dev/stdin
+
+ip -net "$gw" addr add 10.3.0.1/24 dev veth0
+ip -net "$gw" addr add dead:3::1/64 dev veth0 nodad
+
+ip -net "$srv" addr add 10.3.0.99/24 dev eth0
+ip -net "$srv" addr add dead:3::99/64 dev eth0 nodad
+
+ip netns exec "$gw" nft -f /dev/stdin<<EOF
+table inet raw {
+	map iiftomark {
+		type ifname : mark
+	}
+
+	map iiftozone {
+		typeof iifname : ct zone
+	}
+
+	set inicmp {
+		flags dynamic
+		type ipv4_addr . ifname . ipv4_addr
+	}
+	set inflows {
+		flags dynamic
+		type ipv4_addr . inet_service . ifname . ipv4_addr . inet_service
+	}
+
+	set inflows6 {
+		flags dynamic
+		type ipv6_addr . inet_service . ifname . ipv6_addr . inet_service
+	}
+
+	chain prerouting {
+		type filter hook prerouting priority -64000; policy accept;
+		ct original zone set meta iifname map @iiftozone
+		meta mark set meta iifname map @iiftomark
+
+		tcp flags & (syn|ack) == ack add @inflows { ip saddr . tcp sport . meta iifname . ip daddr . tcp dport counter }
+		add @inflows6 { ip6 saddr . tcp sport . meta iifname . ip6 daddr . tcp dport counter }
+		ip protocol icmp add @inicmp { ip saddr . meta iifname . ip daddr counter }
+	}
+
+	chain nat_postrouting {
+		type nat hook postrouting priority 0; policy accept;
+                ct mark set meta mark meta oifname veth0 masquerade
+	}
+
+	chain mangle_prerouting {
+		type filter hook prerouting priority -100; policy accept;
+		ct direction reply meta mark set ct mark
+	}
+}
+EOF
+if [ "$?" -ne 0 ];then
+	echo "SKIP: Could not add nftables rules"
+	exit $ksft_skip
+fi
+
+( echo add element inet raw iiftomark \{
+	for i in $(seq 1 $((maxclients-1))); do
+		echo \"veth"$i"\" : "$i",
+	done
+	echo \"veth"$maxclients"\" : "$maxclients" \}
+	echo add element inet raw iiftozone \{
+	for i in $(seq 1 $((maxclients-1))); do
+		echo \"veth"$i"\" : "$i",
+	done
+	echo \"veth$maxclients\" : $maxclients \}
+) | ip netns exec "$gw" nft -f /dev/stdin
+
+ip netns exec "$gw" sysctl -q net.ipv4.conf.all.forwarding=1 > /dev/null
+ip netns exec "$gw" sysctl -q net.ipv6.conf.all.forwarding=1 > /dev/null
+
+# useful for debugging: allows to use 'ping' from clients to gateway.
+ip netns exec "$gw" sysctl -q net.ipv4.fwmark_reflect=1 > /dev/null
+ip netns exec "$gw" sysctl -q net.ipv6.fwmark_reflect=1 > /dev/null
+
+for i in $(seq 1 "$maxclients"); do
+  cl=$(eval echo \$cl"$i")
+  ip netns exec "$cl" ping -i 0.5 -q -c 3 10.3.0.99 > /dev/null 2>&1 &
+done
+
+wait || ret=1
+
+[ "$ret" -ne 0 ] && "FAIL: Ping failure from $cl" 1>&2
+
+for i in $(seq 1 "$maxclients"); do
+   if ! ip netns exec "$gw" nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" | grep -q "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 counter packets 3 bytes 252 }"; then
+      ret=1
+      echo "FAIL: counter icmp mismatch for veth$i" 1>&2
+      ip netns exec "$gw" nft get element inet raw inicmp "{ 10.1.0.3 . \"veth$i\" . 10.3.0.99 }" 1>&2
+      break
+   fi
+done
+
+if ! ip netns exec "$gw" nft get element inet raw inicmp "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 }" | grep -q "{ 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * maxclients)) bytes $((252 * maxclients)) }"; then
+    ret=1
+    echo "FAIL: counter icmp mismatch for veth0: { 10.3.0.99 . \"veth0\" . 10.3.0.1 counter packets $((3 * maxclients)) bytes $((252 * maxclients)) }"
+    ip netns exec "$gw" nft get element inet raw inicmp "{ 10.3.99 . \"veth0\" . 10.3.0.1 }" 1>&2
+fi
+
+if [ $ret -eq 0 ]; then
+	echo "PASS: ping test from all $maxclients namespaces"
+fi
+
+if [ $have_socat -eq 0 ];then
+	echo "SKIP: socat not installed"
+	if [ $ret -ne 0 ];then
+	    exit $ret
+	fi
+	exit $ksft_skip
+fi
+
+listener_ready()
+{
+	ss -N "$1" -lnt -o "sport = :5201" | grep -q 5201
+}
+
+ip netns exec "$srv" socat -u TCP-LISTEN:5201,fork STDOUT > /dev/null 2>/dev/null &
+socatpid=$!
+
+busywait 1000 listener_ready "$srv"
+
+for i in $(seq 1 "$maxclients"); do
+  if [ $ret -ne 0 ]; then
+     break
+  fi
+  cl=$(eval echo \$cl"$i")
+  if ! ip netns exec "$cl" socat -4 -u STDIN TCP:10.3.0.99:5201,sourceport=10000 < /dev/null > /dev/null; then
+     echo "FAIL: Failure to connect for $cl" 1>&2
+     ip netns exec "$gw" conntrack -S 1>&2
+     ret=1
+  fi
+done
+if [ $ret -eq 0 ];then
+	echo "PASS: socat connections for all $maxclients net namespaces"
+fi
+
+kill $socatpid
+wait
+
+for i in $(seq 1 "$maxclients"); do
+   if ! ip netns exec "$gw" nft get element inet raw inflows "{ 10.1.0.3 . 10000 . \"veth$i\" . 10.3.0.99 . 5201 }" > /dev/null;then
+      ret=1
+      echo "FAIL: can't find expected tcp entry for veth$i" 1>&2
+      break
+   fi
+done
+if [ $ret -eq 0 ];then
+	echo "PASS: Found client connection for all $maxclients net namespaces"
+fi
+
+if ! ip netns exec "$gw" nft get element inet raw inflows "{ 10.3.0.99 . 5201 . \"veth0\" . 10.3.0.1 . 10000 }" > /dev/null;then
+    ret=1
+    echo "FAIL: cannot find return entry on veth0" 1>&2
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_queue.sh b/tools/testing/selftests/net/netfilter/nft_queue.sh
new file mode 100755
index 000000000000..6136ceec45e0
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_queue.sh
@@ -0,0 +1,672 @@
+#!/bin/bash
+#
+# This tests nf_queue:
+# 1. can process packets from all hooks
+# 2. support running nfqueue from more than one base chain
+#
+# shellcheck disable=SC2162,SC2317
+
+source lib.sh
+ret=0
+timeout=5
+
+SCTP_TEST_TIMEOUT=60
+
+cleanup()
+{
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+	ip netns pids "$nsrouter" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+
+	rm -f "$TMPINPUT"
+	rm -f "$TMPFILE0"
+	rm -f "$TMPFILE1"
+	rm -f "$TMPFILE2" "$TMPFILE3"
+}
+
+checktool "nft --version" "test without nft tool"
+checktool "socat -h" "run test without socat"
+
+modprobe -q sctp
+
+trap cleanup EXIT
+
+setup_ns ns1 ns2 ns3 nsrouter
+
+TMPFILE0=$(mktemp)
+TMPFILE1=$(mktemp)
+TMPFILE2=$(mktemp)
+TMPFILE3=$(mktemp)
+
+TMPINPUT=$(mktemp)
+COUNT=200
+[ "$KSFT_MACHINE_SLOW" = "yes" ] && COUNT=$((COUNT/8))
+dd conv=sparse status=none if=/dev/zero bs=1M count=$COUNT of="$TMPINPUT"
+
+if ! ip link add veth0 netns "$nsrouter" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1; then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+ip link add veth1 netns "$nsrouter" type veth peer name eth0 netns "$ns2"
+ip link add veth2 netns "$nsrouter" type veth peer name eth0 netns "$ns3"
+
+ip -net "$nsrouter" link set veth0 up
+ip -net "$nsrouter" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$nsrouter" link set veth1 up
+ip -net "$nsrouter" addr add 10.0.2.1/24 dev veth1
+ip -net "$nsrouter" addr add dead:2::1/64 dev veth1 nodad
+
+ip -net "$nsrouter" link set veth2 up
+ip -net "$nsrouter" addr add 10.0.3.1/24 dev veth2
+ip -net "$nsrouter" addr add dead:3::1/64 dev veth2 nodad
+
+ip -net "$ns1" link set eth0 up
+ip -net "$ns2" link set eth0 up
+ip -net "$ns3" link set eth0 up
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" route add default via dead:1::1
+
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns2" addr add dead:2::99/64 dev eth0 nodad
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns2" route add default via dead:2::1
+
+ip -net "$ns3" addr add 10.0.3.99/24 dev eth0
+ip -net "$ns3" addr add dead:3::99/64 dev eth0 nodad
+ip -net "$ns3" route add default via 10.0.3.1
+ip -net "$ns3" route add default via dead:3::1
+
+load_ruleset() {
+	local name=$1
+	local prio=$2
+
+ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+table inet $name {
+	chain nfq {
+		ip protocol icmp queue bypass
+		icmpv6 type { "echo-request", "echo-reply" } queue num 1 bypass
+	}
+	chain pre {
+		type filter hook prerouting priority $prio; policy accept;
+		jump nfq
+	}
+	chain input {
+		type filter hook input priority $prio; policy accept;
+		jump nfq
+	}
+	chain forward {
+		type filter hook forward priority $prio; policy accept;
+		tcp dport 12345 queue num 2
+		jump nfq
+	}
+	chain output {
+		type filter hook output priority $prio; policy accept;
+		tcp dport 12345 queue num 3
+		tcp sport 23456 queue num 3
+		jump nfq
+	}
+	chain post {
+		type filter hook postrouting priority $prio; policy accept;
+		jump nfq
+	}
+}
+EOF
+}
+
+load_counter_ruleset() {
+	local prio=$1
+
+ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+table inet countrules {
+	chain pre {
+		type filter hook prerouting priority $prio; policy accept;
+		counter
+	}
+	chain input {
+		type filter hook input priority $prio; policy accept;
+		counter
+	}
+	chain forward {
+		type filter hook forward priority $prio; policy accept;
+		counter
+	}
+	chain output {
+		type filter hook output priority $prio; policy accept;
+		counter
+	}
+	chain post {
+		type filter hook postrouting priority $prio; policy accept;
+		counter
+	}
+}
+EOF
+}
+
+test_ping() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.99 > /dev/null; then
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::99 > /dev/null; then
+	return 2
+  fi
+
+  return 0
+}
+
+test_ping_router() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.1 > /dev/null; then
+	return 3
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::1 > /dev/null; then
+	return 4
+  fi
+
+  return 0
+}
+
+test_queue_blackhole() {
+	local proto=$1
+
+ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+table $proto blackh {
+	chain forward {
+	type filter hook forward priority 0; policy accept;
+		queue num 600
+	}
+}
+EOF
+	if [ "$proto" = "ip" ] ;then
+		ip netns exec "$ns1" ping -W 2 -c 1 -q 10.0.2.99 > /dev/null
+		lret=$?
+	elif [ "$proto" = "ip6" ]; then
+		ip netns exec "$ns1" ping -W 2 -c 1 -q dead:2::99 > /dev/null
+		lret=$?
+	else
+		lret=111
+	fi
+
+	# queue without bypass keyword should drop traffic if no listener exists.
+	if [ "$lret" -eq 0 ];then
+		echo "FAIL: $proto expected failure, got $lret" 1>&2
+		exit 1
+	fi
+
+	if ! ip netns exec "$nsrouter" nft delete table "$proto" blackh; then
+	        echo "FAIL: $proto: Could not delete blackh table"
+	        exit 1
+	fi
+
+        echo "PASS: $proto: statement with no listener results in packet drop"
+}
+
+nf_queue_wait()
+{
+	local procfile="/proc/self/net/netfilter/nfnetlink_queue"
+	local netns id
+
+	netns="$1"
+	id="$2"
+
+	# if this file doesn't exist, nfnetlink_module isn't loaded.
+	# rather than loading it ourselves, wait for kernel module autoload
+	# completion, nfnetlink should do so automatically because nf_queue
+	# helper program, spawned in the background, asked for this functionality.
+	test -f "$procfile" &&
+		ip netns exec "$netns" cat "$procfile" | grep -q "^ *$id "
+}
+
+test_queue()
+{
+	local expected="$1"
+	local last=""
+
+	# spawn nf_queue listeners
+	ip netns exec "$nsrouter" ./nf_queue -c -q 0 -t $timeout > "$TMPFILE0" &
+	ip netns exec "$nsrouter" ./nf_queue -c -q 1 -t $timeout > "$TMPFILE1" &
+
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 0
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 1
+
+	if ! test_ping;then
+		echo "FAIL: netns routing/connectivity with active listener on queues 0 and 1: $ret" 1>&2
+		exit $ret
+	fi
+
+	if ! test_ping_router;then
+		echo "FAIL: netns router unreachable listener on queue 0 and 1: $ret" 1>&2
+		exit $ret
+	fi
+
+	wait
+	ret=$?
+
+	for file in $TMPFILE0 $TMPFILE1; do
+		last=$(tail -n1 "$file")
+		if [ x"$last" != x"$expected packets total" ]; then
+			echo "FAIL: Expected $expected packets total, but got $last" 1>&2
+			ip netns exec "$nsrouter" nft list ruleset
+			exit 1
+		fi
+	done
+
+	echo "PASS: Expected and received $last"
+}
+
+listener_ready()
+{
+	ss -N "$1" -lnt -o "sport = :12345" | grep -q 12345
+}
+
+test_tcp_forward()
+{
+	ip netns exec "$nsrouter" ./nf_queue -q 2 &
+	local nfqpid=$!
+
+	timeout 5 ip netns exec "$ns2" socat -u TCP-LISTEN:12345 STDOUT >/dev/null &
+	local rpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns2"
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 2
+
+	local tthen=$(date +%s)
+
+	ip netns exec "$ns1" socat -u STDIN TCP:10.0.2.99:12345 <"$TMPINPUT" >/dev/null
+
+	wait_and_check_retval "$rpid" "tcp and nfqueue in forward chain" "$tthen"
+	kill "$nfqpid"
+}
+
+test_tcp_localhost()
+{
+	timeout 5 ip netns exec "$nsrouter" socat -u TCP-LISTEN:12345 STDOUT >/dev/null &
+	local rpid=$!
+
+	ip netns exec "$nsrouter" ./nf_queue -q 3 &
+	local nfqpid=$!
+	local tthen=$(date +%s)
+
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$nsrouter"
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 3
+
+	ip netns exec "$nsrouter" socat -u STDIN TCP:127.0.0.1:12345 <"$TMPINPUT" >/dev/null
+
+	wait_and_check_retval "$rpid" "tcp via loopback" "$tthen"
+	kill "$nfqpid"
+}
+
+test_tcp_localhost_connectclose()
+{
+	ip netns exec "$nsrouter" ./nf_queue -q 3 &
+	local nfqpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 3
+
+	timeout 10 ip netns exec "$nsrouter" ./connect_close -p 23456 -t 3
+
+	kill "$nfqpid"
+	wait && echo "PASS: tcp via loopback with connect/close"
+}
+
+test_tcp_localhost_requeue()
+{
+ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+flush ruleset
+table inet filter {
+	chain output {
+		type filter hook output priority 0; policy accept;
+		tcp dport 12345 limit rate 1/second burst 1 packets counter queue num 0
+	}
+	chain post {
+		type filter hook postrouting priority 0; policy accept;
+		tcp dport 12345 limit rate 1/second burst 1 packets counter queue num 0
+	}
+}
+EOF
+	timeout 5 ip netns exec "$nsrouter" socat -u TCP-LISTEN:12345 STDOUT >/dev/null &
+	local rpid=$!
+
+	ip netns exec "$nsrouter" ./nf_queue -c -q 1 -t "$timeout" > "$TMPFILE2" &
+
+	# nfqueue 1 will be called via output hook.  But this time,
+        # re-queue the packet to nfqueue program on queue 2.
+	ip netns exec "$nsrouter" ./nf_queue -G -d 150 -c -q 0 -Q 1 -t "$timeout" > "$TMPFILE3" &
+
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$nsrouter"
+	ip netns exec "$nsrouter" socat -u STDIN TCP:127.0.0.1:12345 <"$TMPINPUT" > /dev/null
+
+	wait
+
+	if ! diff -u "$TMPFILE2" "$TMPFILE3" ; then
+		echo "FAIL: lost packets during requeue?!" 1>&2
+		return
+	fi
+
+	echo "PASS: tcp via loopback and re-queueing"
+}
+
+test_icmp_vrf() {
+	if ! ip -net "$ns1" link add tvrf type vrf table 9876;then
+		echo "SKIP: Could not add vrf device"
+		return
+	fi
+
+	ip -net "$ns1" li set eth0 master tvrf
+	ip -net "$ns1" li set tvrf up
+
+	ip -net "$ns1" route add 10.0.2.0/24 via 10.0.1.1 dev eth0 table 9876
+ip netns exec "$ns1" nft -f /dev/stdin <<EOF
+flush ruleset
+table inet filter {
+	chain output {
+		type filter hook output priority 0; policy accept;
+		meta oifname "tvrf" icmp type echo-request counter queue num 1
+		meta oifname "eth0" icmp type echo-request counter queue num 1
+	}
+	chain post {
+		type filter hook postrouting priority 0; policy accept;
+		meta oifname "tvrf" icmp type echo-request counter queue num 1
+		meta oifname "eth0" icmp type echo-request counter queue num 1
+	}
+}
+EOF
+	ip netns exec "$ns1" ./nf_queue -q 1 &
+	local nfqpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$ns1" 1
+
+	ip netns exec "$ns1" ip vrf exec tvrf ping -c 1 10.0.2.99 > /dev/null
+
+	for n in output post; do
+		for d in tvrf eth0; do
+			if ! ip netns exec "$ns1" nft list chain inet filter "$n" | grep -q "oifname \"$d\" icmp type echo-request counter packets 1"; then
+				kill "$nfqpid"
+				echo "FAIL: chain $n: icmp packet counter mismatch for device $d" 1>&2
+				ip netns exec "$ns1" nft list ruleset
+				ret=1
+				return
+			fi
+		done
+	done
+
+	kill "$nfqpid"
+	echo "PASS: icmp+nfqueue via vrf"
+}
+
+sctp_listener_ready()
+{
+	ss -S -N "$1" -ln -o "sport = :12345" | grep -q 12345
+}
+
+check_output_files()
+{
+	local f1="$1"
+	local f2="$2"
+	local err="$3"
+
+	if ! cmp "$f1" "$f2" ; then
+		echo "FAIL: $err: input and output file differ" 1>&2
+		echo -n " Input file" 1>&2
+		ls -l "$f1" 1>&2
+		echo -n "Output file" 1>&2
+		ls -l "$f2" 1>&2
+		ret=1
+	fi
+}
+
+wait_and_check_retval()
+{
+	local rpid="$1"
+	local msg="$2"
+	local tthen="$3"
+	local tnow=$(date +%s)
+
+	if wait "$rpid";then
+		echo -n "PASS: "
+	else
+		echo -n "FAIL: "
+		ret=1
+	fi
+
+	printf "%s (duration: %ds)\n" "$msg" $((tnow-tthen))
+}
+
+test_sctp_forward()
+{
+	ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+flush ruleset
+table inet sctpq {
+        chain forward {
+        type filter hook forward priority 0; policy accept;
+                sctp dport 12345 queue num 10
+        }
+}
+EOF
+	timeout "$SCTP_TEST_TIMEOUT" ip netns exec "$ns2" socat -u SCTP-LISTEN:12345 STDOUT > "$TMPFILE1" &
+	local rpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" sctp_listener_ready "$ns2"
+
+	ip netns exec "$nsrouter" ./nf_queue -q 10 -G &
+	local nfqpid=$!
+	local tthen=$(date +%s)
+
+	ip netns exec "$ns1" socat -u STDIN SCTP:10.0.2.99:12345 <"$TMPINPUT" >/dev/null
+
+	if ! ip netns exec "$nsrouter" nft delete table inet sctpq; then
+		echo "FAIL:  Could not delete sctpq table"
+		exit 1
+	fi
+
+	wait_and_check_retval "$rpid" "sctp and nfqueue in forward chain" "$tthen"
+	kill "$nfqpid"
+
+	check_output_files "$TMPINPUT" "$TMPFILE1" "sctp forward"
+}
+
+test_sctp_output()
+{
+        ip netns exec "$ns1" nft -f /dev/stdin <<EOF
+table inet sctpq {
+        chain output {
+        type filter hook output priority 0; policy accept;
+                sctp dport 12345 queue num 11
+        }
+}
+EOF
+	# reduce test file size, software segmentation causes sk wmem increase.
+	dd conv=sparse status=none if=/dev/zero bs=1M count=$((COUNT/2)) of="$TMPINPUT"
+
+	timeout "$SCTP_TEST_TIMEOUT" ip netns exec "$ns2" socat -u SCTP-LISTEN:12345 STDOUT > "$TMPFILE1" &
+	local rpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" sctp_listener_ready "$ns2"
+
+	ip netns exec "$ns1" ./nf_queue -q 11 &
+	local nfqpid=$!
+	local tthen=$(date +%s)
+
+	ip netns exec "$ns1" socat -u STDIN SCTP:10.0.2.99:12345 <"$TMPINPUT" >/dev/null
+
+	if ! ip netns exec "$ns1" nft delete table inet sctpq; then
+		echo "FAIL:  Could not delete sctpq table"
+		exit 1
+	fi
+
+	# must wait before checking completeness of output file.
+	wait_and_check_retval "$rpid" "sctp and nfqueue in output chain with GSO" "$tthen"
+	kill "$nfqpid"
+
+	check_output_files "$TMPINPUT" "$TMPFILE1" "sctp output"
+}
+
+udp_listener_ready()
+{
+	ss -S -N "$1" -uln -o "sport = :12345" | grep -q 12345
+}
+
+output_files_written()
+{
+	test -s "$1" && test -s "$2"
+}
+
+test_udp_ct_race()
+{
+        ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+flush ruleset
+table inet udpq {
+	chain prerouting {
+		type nat hook prerouting priority dstnat - 5; policy accept;
+		ip daddr 10.6.6.6 udp dport 12345 counter dnat to numgen inc mod 2 map { 0 : 10.0.2.99, 1 : 10.0.3.99 }
+	}
+        chain postrouting {
+		type filter hook postrouting priority srcnat - 5; policy accept;
+		udp dport 12345 counter queue num 12
+        }
+}
+EOF
+	:> "$TMPFILE1"
+	:> "$TMPFILE2"
+
+	timeout 10 ip netns exec "$ns2" socat UDP-LISTEN:12345,fork,pf=ipv4 OPEN:"$TMPFILE1",trunc &
+	local rpid1=$!
+
+	timeout 10 ip netns exec "$ns3" socat UDP-LISTEN:12345,fork,pf=ipv4 OPEN:"$TMPFILE2",trunc &
+	local rpid2=$!
+
+	ip netns exec "$nsrouter" ./nf_queue -q 12 -d 1000 &
+	local nfqpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" udp_listener_ready "$ns2"
+	busywait "$BUSYWAIT_TIMEOUT" udp_listener_ready "$ns3"
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$nsrouter" 12
+
+	# Send two packets, one should end up in ns1, other in ns2.
+	# This is because nfqueue will delay packet for long enough so that
+	# second packet will not find existing conntrack entry.
+	echo "Packet 1" | ip netns exec "$ns1" socat -u STDIN UDP-DATAGRAM:10.6.6.6:12345,bind=0.0.0.0:55221
+	echo "Packet 2" | ip netns exec "$ns1" socat -u STDIN UDP-DATAGRAM:10.6.6.6:12345,bind=0.0.0.0:55221
+
+	busywait 10000 output_files_written "$TMPFILE1" "$TMPFILE2"
+
+	kill "$nfqpid"
+
+	if ! ip netns exec "$nsrouter" bash -c 'conntrack -L -p udp --dport 12345 2>/dev/null | wc -l | grep -q "^1"'; then
+		echo "FAIL: Expected One udp conntrack entry"
+		ip netns exec "$nsrouter" conntrack -L -p udp --dport 12345
+		ret=1
+	fi
+
+	if ! ip netns exec "$nsrouter" nft delete table inet udpq; then
+		echo "FAIL: Could not delete udpq table"
+		ret=1
+		return
+	fi
+
+	NUMLINES1=$(wc -l < "$TMPFILE1")
+	NUMLINES2=$(wc -l < "$TMPFILE2")
+
+	if [ "$NUMLINES1" -ne 1 ] || [ "$NUMLINES2" -ne 1 ]; then
+		ret=1
+		echo "FAIL: uneven udp packet distribution: $NUMLINES1 $NUMLINES2"
+		echo -n "$TMPFILE1: ";cat "$TMPFILE1"
+		echo -n "$TMPFILE2: ";cat "$TMPFILE2"
+		return
+	fi
+
+	echo "PASS: both udp receivers got one packet each"
+}
+
+test_queue_removal()
+{
+	read tainted_then < /proc/sys/kernel/tainted
+
+	ip netns exec "$ns1" nft -f - <<EOF
+flush ruleset
+table ip filter {
+	chain output {
+		type filter hook output priority 0; policy accept;
+		ip protocol icmp queue num 0
+	}
+}
+EOF
+	ip netns exec "$ns1" ./nf_queue -q 0 -d 30000 &
+	local nfqpid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" nf_queue_wait "$ns1" 0
+
+	ip netns exec "$ns1" ping -w 2 -f -c 10 127.0.0.1 -q >/dev/null
+	kill $nfqpid
+
+	ip netns exec "$ns1" nft flush ruleset
+
+	if [ "$tainted_then" -ne 0 ];then
+		return
+	fi
+
+	read tainted_now < /proc/sys/kernel/tainted
+	if [ "$tainted_now" -eq 0 ];then
+		echo "PASS: queue program exiting while packets queued"
+	else
+		echo "TAINT: queue program exiting while packets queued"
+		dmesg
+		ret=1
+	fi
+}
+
+ip netns exec "$nsrouter" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth2.forwarding=1 > /dev/null
+
+load_ruleset "filter" 0
+
+if test_ping; then
+	# queue bypass works (rules were skipped, no listener)
+	echo "PASS: ${ns1} can reach ${ns2}"
+else
+	echo "FAIL: ${ns1} cannot reach ${ns2}: $ret" 1>&2
+	exit $ret
+fi
+
+test_queue_blackhole ip
+test_queue_blackhole ip6
+
+# dummy ruleset to add base chains between the
+# queueing rules.  We don't want the second reinject
+# to re-execute the old hooks.
+load_counter_ruleset 10
+
+# we are hooking all: prerouting/input/forward/output/postrouting.
+# we ping ${ns2} from ${ns1} via ${nsrouter} using ipv4 and ipv6, so:
+# 1x icmp prerouting,forward,postrouting -> 3 queue events (6 incl. reply).
+# 1x icmp prerouting,input,output postrouting -> 4 queue events incl. reply.
+# so we expect that userspace program receives 10 packets.
+test_queue 10
+
+# same.  We queue to a second program as well.
+load_ruleset "filter2" 20
+test_queue 20
+ip netns exec "$ns1" nft flush ruleset
+
+test_tcp_forward
+test_tcp_localhost
+test_tcp_localhost_connectclose
+test_tcp_localhost_requeue
+test_sctp_forward
+test_sctp_output
+test_udp_ct_race
+
+# should be last, adds vrf device in ns1 and changes routes
+test_icmp_vrf
+test_queue_removal
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_synproxy.sh b/tools/testing/selftests/net/netfilter/nft_synproxy.sh
new file mode 100755
index 000000000000..293f667a6aec
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_synproxy.sh
@@ -0,0 +1,96 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+ret=0
+
+checktool "nft --version" "run test without nft tool"
+checktool "iperf3 --version" "run test without iperf3"
+
+setup_ns nsr ns1 ns2
+
+modprobe -q nf_conntrack
+
+cleanup() {
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+ip link add veth0 netns "$nsr" type veth peer name eth0 netns "$ns1"
+ip link add veth1 netns "$nsr" type veth peer name eth0 netns "$ns2"
+
+for dev in veth0 veth1; do
+	ip -net "$nsr" link set "$dev" up
+done
+
+ip -net "$nsr" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsr" addr add 10.0.2.1/24 dev veth1
+
+ip netns exec "$nsr" sysctl -q net.ipv4.conf.veth0.forwarding=1
+ip netns exec "$nsr" sysctl -q net.ipv4.conf.veth1.forwarding=1
+ip netns exec "$nsr" sysctl -q net.netfilter.nf_conntrack_tcp_loose=0
+
+for n in $ns1 $ns2; do
+  ip -net "$n" link set eth0 up
+done
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns2" route add default via 10.0.2.1
+
+# test basic connectivity
+if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.99 > /dev/null; then
+  echo "ERROR: $ns1 cannot reach $ns2" 1>&2
+  exit 1
+fi
+
+if ! ip netns exec "$ns2" ping -c 1 -q 10.0.1.99 > /dev/null; then
+  echo "ERROR: $ns2 cannot reach $ns1" 1>&2
+  exit 1
+fi
+
+ip netns exec "$ns2" iperf3 -s > /dev/null 2>&1 &
+# ip netns exec $nsr tcpdump -vvv -n -i veth1 tcp | head -n 10 &
+
+sleep 1
+
+ip netns exec "$nsr" nft -f - <<EOF
+table inet filter {
+   chain prerouting {
+      type filter hook prerouting priority -300; policy accept;
+      meta iif veth0 tcp flags syn counter notrack
+   }
+
+  chain forward {
+      type filter hook forward priority 0; policy accept;
+
+      ct state new,established counter accept
+
+      meta iif veth0 meta l4proto tcp ct state untracked,invalid synproxy mss 1460 sack-perm timestamp
+
+      ct state invalid counter drop
+
+      # make ns2 unreachable w.o. tcp synproxy
+      tcp flags syn counter drop
+   }
+}
+EOF
+if [ $? -ne 0 ]; then
+	echo "SKIP: Cannot add nft synproxy"
+	exit $ksft_skip
+fi
+
+if ! ip netns exec "$ns1" timeout 5 iperf3 -c 10.0.2.99 -n $((1 * 1024 * 1024)) > /dev/null; then
+	echo "FAIL: iperf3 returned an error" 1>&2
+	ret=1
+	ip netns exec "$nsr" nft list ruleset
+else
+	echo "PASS: synproxy connection successful"
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_tproxy_tcp.sh b/tools/testing/selftests/net/netfilter/nft_tproxy_tcp.sh
new file mode 100755
index 000000000000..e208fb03eeb7
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_tproxy_tcp.sh
@@ -0,0 +1,358 @@
+#!/bin/bash
+#
+# This tests tproxy on the following scenario:
+#
+#                         +------------+
+# +-------+               |  nsrouter  |                  +-------+
+# |ns1    |.99          .1|            |.1             .99|    ns2|
+# |   eth0|---------------|veth0  veth1|------------------|eth0   |
+# |       |  10.0.1.0/24  |            |   10.0.2.0/24    |       |
+# +-------+  dead:1::/64  |    veth2   |   dead:2::/64    +-------+
+#                         +------------+
+#                                |.1
+#                                |
+#                                |
+#                                |                        +-------+
+#                                |                     .99|    ns3|
+#                                +------------------------|eth0   |
+#                                       10.0.3.0/24       |       |
+#                                       dead:3::/64       +-------+
+#
+# The tproxy implementation acts as an echo server so the client
+# must receive the same message it sent if it has been proxied.
+# If is not proxied the servers return PONG_NS# with the number
+# of the namespace the server is running.
+#
+# shellcheck disable=SC2162,SC2317
+
+source lib.sh
+ret=0
+timeout=5
+
+cleanup()
+{
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+	ip netns pids "$ns3" | xargs kill 2>/dev/null
+	ip netns pids "$nsrouter" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+}
+
+checktool "nft --version" "test without nft tool"
+checktool "socat -h" "run test without socat"
+
+trap cleanup EXIT
+setup_ns ns1 ns2 ns3 nsrouter
+
+if ! ip link add veth0 netns "$nsrouter" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1; then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+ip link add veth1 netns "$nsrouter" type veth peer name eth0 netns "$ns2"
+ip link add veth2 netns "$nsrouter" type veth peer name eth0 netns "$ns3"
+
+ip -net "$nsrouter" link set veth0 up
+ip -net "$nsrouter" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$nsrouter" link set veth1 up
+ip -net "$nsrouter" addr add 10.0.2.1/24 dev veth1
+ip -net "$nsrouter" addr add dead:2::1/64 dev veth1 nodad
+
+ip -net "$nsrouter" link set veth2 up
+ip -net "$nsrouter" addr add 10.0.3.1/24 dev veth2
+ip -net "$nsrouter" addr add dead:3::1/64 dev veth2 nodad
+
+ip -net "$ns1" link set eth0 up
+ip -net "$ns2" link set eth0 up
+ip -net "$ns3" link set eth0 up
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" route add default via dead:1::1
+
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns2" addr add dead:2::99/64 dev eth0 nodad
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns2" route add default via dead:2::1
+
+ip -net "$ns3" addr add 10.0.3.99/24 dev eth0
+ip -net "$ns3" addr add dead:3::99/64 dev eth0 nodad
+ip -net "$ns3" route add default via 10.0.3.1
+ip -net "$ns3" route add default via dead:3::1
+
+ip netns exec "$nsrouter" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth2.forwarding=1 > /dev/null
+
+test_ping() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.99 > /dev/null; then
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::99 > /dev/null; then
+	return 2
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.3.99 > /dev/null; then
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:3::99 > /dev/null; then
+	return 2
+  fi
+
+  return 0
+}
+
+test_ping_router() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.1 > /dev/null; then
+	return 3
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::1 > /dev/null; then
+	return 4
+  fi
+
+  return 0
+}
+
+
+listener_ready()
+{
+	local ns="$1"
+	local port="$2"
+	local proto="$3"
+	ss -N "$ns" -ln "$proto" -o "sport = :$port" | grep -q "$port"
+}
+
+test_tproxy()
+{
+	local traffic_origin="$1"
+	local ip_proto="$2"
+	local expect_ns1_ns2="$3"
+	local expect_ns1_ns3="$4"
+	local expect_nsrouter_ns2="$5"
+	local expect_nsrouter_ns3="$6"
+
+	# derived variables
+	local testname="test_${ip_proto}_tcp_${traffic_origin}"
+	local socat_ipproto
+	local ns1_ip
+	local ns2_ip
+	local ns3_ip
+	local ns2_target
+	local ns3_target
+	local nftables_subject
+	local ip_command
+
+	# socat 1.8.0 has a bug that requires to specify the IP family to bind (fixed in 1.8.0.1)
+	case $ip_proto in
+	"ip")
+		socat_ipproto="-4"
+		ns1_ip=10.0.1.99
+		ns2_ip=10.0.2.99
+		ns3_ip=10.0.3.99
+		ns2_target="tcp:$ns2_ip:8080"
+		ns3_target="tcp:$ns3_ip:8080"
+		nftables_subject="ip daddr $ns2_ip tcp dport 8080"
+		ip_command="ip"
+	;;
+	"ip6")
+		socat_ipproto="-6"
+		ns1_ip=dead:1::99
+		ns2_ip=dead:2::99
+		ns3_ip=dead:3::99
+		ns2_target="tcp:[$ns2_ip]:8080"
+		ns3_target="tcp:[$ns3_ip]:8080"
+		nftables_subject="ip6 daddr $ns2_ip tcp dport 8080"
+		ip_command="ip -6"
+	;;
+	*)
+	echo "FAIL: unsupported protocol"
+	exit 255
+	;;
+	esac
+
+	case $traffic_origin in
+	# to capture the local originated traffic we need to mark the outgoing
+	# traffic so the policy based routing rule redirects it and can be processed
+	# in the prerouting chain.
+	"local")
+		nftables_rules="
+flush ruleset
+table inet filter {
+	chain divert {
+		type filter hook prerouting priority 0; policy accept;
+		$nftables_subject tproxy $ip_proto to :12345 meta mark set 1 accept
+	}
+	chain output {
+		type route hook output priority 0; policy accept;
+		$nftables_subject meta mark set 1 accept
+	}
+}"
+	;;
+	"forward")
+		nftables_rules="
+flush ruleset
+table inet filter {
+	chain divert {
+		type filter hook prerouting priority 0; policy accept;
+		$nftables_subject tproxy $ip_proto to :12345 meta mark set 1 accept
+	}
+}"
+	;;
+	*)
+	echo "FAIL: unsupported parameter for traffic origin"
+	exit 255
+	;;
+	esac
+
+	# shellcheck disable=SC2046 # Intended splitting of ip_command
+	ip netns exec "$nsrouter" $ip_command rule add fwmark 1 table 100
+	ip netns exec "$nsrouter" $ip_command route add local "${ns2_ip}" dev lo table 100
+	echo "$nftables_rules" | ip netns exec "$nsrouter" nft -f /dev/stdin
+
+	timeout "$timeout" ip netns exec "$nsrouter" socat "$socat_ipproto" tcp-listen:12345,fork,ip-transparent SYSTEM:"cat" 2>/dev/null &
+	local tproxy_pid=$!
+
+	timeout "$timeout" ip netns exec "$ns2" socat "$socat_ipproto" tcp-listen:8080,fork SYSTEM:"echo PONG_NS2" 2>/dev/null &
+	local server2_pid=$!
+
+	timeout "$timeout" ip netns exec "$ns3" socat "$socat_ipproto" tcp-listen:8080,fork SYSTEM:"echo PONG_NS3" 2>/dev/null &
+	local server3_pid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$nsrouter" 12345 "-t"
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns2" 8080 "-t"
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns3" 8080 "-t"
+
+	local result
+	# request from ns1 to ns2 (forwarded traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$ns1" socat -t 2 -T 2 STDIO "$ns2_target")
+	if [ "$result" == "$expect_ns1_ns2" ] ;then
+		echo "PASS: tproxy test $testname: ns1 got reply \"$result\" connecting to ns2"
+	else
+		echo "ERROR: tproxy test $testname: ns1 got reply \"$result\" connecting to ns2, not \"${expect_ns1_ns2}\" as intended"
+		ret=1
+	fi
+
+	# request from ns1 to ns3(forwarded traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$ns1" socat -t 2 -T 2 STDIO "$ns3_target")
+	if [ "$result" = "$expect_ns1_ns3" ] ;then
+		echo "PASS: tproxy test $testname: ns1 got reply \"$result\" connecting to ns3"
+	else
+		echo "ERROR: tproxy test $testname: ns1 got reply \"$result\" connecting to ns3, not \"$expect_ns1_ns3\" as intended"
+		ret=1
+	fi
+
+	# request from nsrouter to ns2 (localy originated traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$nsrouter" socat -t 2 -T 2 STDIO "$ns2_target")
+	if [ "$result" == "$expect_nsrouter_ns2" ] ;then
+		echo "PASS: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns2"
+	else
+		echo "ERROR: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns2, not \"$expect_nsrouter_ns2\" as intended"
+		ret=1
+	fi
+
+	# request from nsrouter to ns3 (localy originated traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$nsrouter" socat -t 2 -T 2 STDIO "$ns3_target")
+	if [ "$result" = "$expect_nsrouter_ns3" ] ;then
+		echo "PASS: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns3"
+	else
+		echo "ERROR: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns3, not \"$expect_nsrouter_ns3\"  as intended"
+		ret=1
+	fi
+
+	# cleanup
+	kill "$tproxy_pid" "$server2_pid" "$server3_pid" 2>/dev/null
+	# shellcheck disable=SC2046 # Intended splitting of ip_command
+	ip netns exec "$nsrouter" $ip_command rule del fwmark 1 table 100
+	ip netns exec "$nsrouter" $ip_command route flush table 100
+}
+
+
+test_ipv4_tcp_forward()
+{
+	local traffic_origin="forward"
+	local ip_proto="ip"
+	local expect_ns1_ns2="I_M_PROXIED"
+	local expect_ns1_ns3="PONG_NS3"
+	local expect_nsrouter_ns2="PONG_NS2"
+	local expect_nsrouter_ns3="PONG_NS3"
+
+	test_tproxy     "$traffic_origin" \
+			"$ip_proto" \
+			"$expect_ns1_ns2" \
+			"$expect_ns1_ns3" \
+			"$expect_nsrouter_ns2" \
+			"$expect_nsrouter_ns3"
+}
+
+test_ipv4_tcp_local()
+{
+	local traffic_origin="local"
+	local ip_proto="ip"
+	local expect_ns1_ns2="I_M_PROXIED"
+	local expect_ns1_ns3="PONG_NS3"
+	local expect_nsrouter_ns2="I_M_PROXIED"
+	local expect_nsrouter_ns3="PONG_NS3"
+
+	test_tproxy     "$traffic_origin" \
+			"$ip_proto" \
+			"$expect_ns1_ns2" \
+			"$expect_ns1_ns3" \
+			"$expect_nsrouter_ns2" \
+			"$expect_nsrouter_ns3"
+}
+
+test_ipv6_tcp_forward()
+{
+	local traffic_origin="forward"
+	local ip_proto="ip6"
+	local expect_ns1_ns2="I_M_PROXIED"
+	local expect_ns1_ns3="PONG_NS3"
+	local expect_nsrouter_ns2="PONG_NS2"
+	local expect_nsrouter_ns3="PONG_NS3"
+
+	test_tproxy     "$traffic_origin" \
+			"$ip_proto" \
+			"$expect_ns1_ns2" \
+			"$expect_ns1_ns3" \
+			"$expect_nsrouter_ns2" \
+			"$expect_nsrouter_ns3"
+}
+
+test_ipv6_tcp_local()
+{
+	local traffic_origin="local"
+	local ip_proto="ip6"
+	local expect_ns1_ns2="I_M_PROXIED"
+	local expect_ns1_ns3="PONG_NS3"
+	local expect_nsrouter_ns2="I_M_PROXIED"
+	local expect_nsrouter_ns3="PONG_NS3"
+
+	test_tproxy     "$traffic_origin" \
+			"$ip_proto" \
+			"$expect_ns1_ns2" \
+			"$expect_ns1_ns3" \
+			"$expect_nsrouter_ns2" \
+			"$expect_nsrouter_ns3"
+}
+
+if test_ping; then
+	# queue bypass works (rules were skipped, no listener)
+	echo "PASS: ${ns1} can reach ${ns2}"
+else
+	echo "FAIL: ${ns1} cannot reach ${ns2}: $ret" 1>&2
+	exit $ret
+fi
+
+test_ipv4_tcp_forward
+test_ipv4_tcp_local
+test_ipv6_tcp_forward
+test_ipv6_tcp_local
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_tproxy_udp.sh b/tools/testing/selftests/net/netfilter/nft_tproxy_udp.sh
new file mode 100755
index 000000000000..d16de13fe5a7
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_tproxy_udp.sh
@@ -0,0 +1,262 @@
+#!/bin/bash
+#
+# This tests tproxy on the following scenario:
+#
+#                         +------------+
+# +-------+               |  nsrouter  |                  +-------+
+# |ns1    |.99          .1|            |.1             .99|    ns2|
+# |   eth0|---------------|veth0  veth1|------------------|eth0   |
+# |       |  10.0.1.0/24  |            |   10.0.2.0/24    |       |
+# +-------+  dead:1::/64  |    veth2   |   dead:2::/64    +-------+
+#                         +------------+
+#                                |.1
+#                                |
+#                                |
+#                                |                        +-------+
+#                                |                     .99|    ns3|
+#                                +------------------------|eth0   |
+#                                       10.0.3.0/24       |       |
+#                                       dead:3::/64       +-------+
+#
+# The tproxy implementation acts as an echo server so the client
+# must receive the same message it sent if it has been proxied.
+# If is not proxied the servers return PONG_NS# with the number
+# of the namespace the server is running.
+# shellcheck disable=SC2162,SC2317
+
+source lib.sh
+ret=0
+# UDP is slow
+timeout=15
+
+cleanup()
+{
+	ip netns pids "$ns1" | xargs kill 2>/dev/null
+	ip netns pids "$ns2" | xargs kill 2>/dev/null
+	ip netns pids "$ns3" | xargs kill 2>/dev/null
+	ip netns pids "$nsrouter" | xargs kill 2>/dev/null
+
+	cleanup_all_ns
+}
+
+checktool "nft --version" "test without nft tool"
+checktool "socat -h" "run test without socat"
+
+trap cleanup EXIT
+setup_ns ns1 ns2 ns3 nsrouter
+
+if ! ip link add veth0 netns "$nsrouter" type veth peer name eth0 netns "$ns1" > /dev/null 2>&1; then
+    echo "SKIP: No virtual ethernet pair device support in kernel"
+    exit $ksft_skip
+fi
+ip link add veth1 netns "$nsrouter" type veth peer name eth0 netns "$ns2"
+ip link add veth2 netns "$nsrouter" type veth peer name eth0 netns "$ns3"
+
+ip -net "$nsrouter" link set veth0 up
+ip -net "$nsrouter" addr add 10.0.1.1/24 dev veth0
+ip -net "$nsrouter" addr add dead:1::1/64 dev veth0 nodad
+
+ip -net "$nsrouter" link set veth1 up
+ip -net "$nsrouter" addr add 10.0.2.1/24 dev veth1
+ip -net "$nsrouter" addr add dead:2::1/64 dev veth1 nodad
+
+ip -net "$nsrouter" link set veth2 up
+ip -net "$nsrouter" addr add 10.0.3.1/24 dev veth2
+ip -net "$nsrouter" addr add dead:3::1/64 dev veth2 nodad
+
+ip -net "$ns1" link set eth0 up
+ip -net "$ns2" link set eth0 up
+ip -net "$ns3" link set eth0 up
+
+ip -net "$ns1" addr add 10.0.1.99/24 dev eth0
+ip -net "$ns1" addr add dead:1::99/64 dev eth0 nodad
+ip -net "$ns1" route add default via 10.0.1.1
+ip -net "$ns1" route add default via dead:1::1
+
+ip -net "$ns2" addr add 10.0.2.99/24 dev eth0
+ip -net "$ns2" addr add dead:2::99/64 dev eth0 nodad
+ip -net "$ns2" route add default via 10.0.2.1
+ip -net "$ns2" route add default via dead:2::1
+
+ip -net "$ns3" addr add 10.0.3.99/24 dev eth0
+ip -net "$ns3" addr add dead:3::99/64 dev eth0 nodad
+ip -net "$ns3" route add default via 10.0.3.1
+ip -net "$ns3" route add default via dead:3::1
+
+ip netns exec "$nsrouter" sysctl net.ipv6.conf.all.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth0.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth1.forwarding=1 > /dev/null
+ip netns exec "$nsrouter" sysctl net.ipv4.conf.veth2.forwarding=1 > /dev/null
+
+test_ping() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.99 > /dev/null; then
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::99 > /dev/null; then
+	return 2
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.3.99 > /dev/null; then
+	return 1
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:3::99 > /dev/null; then
+	return 2
+  fi
+
+  return 0
+}
+
+test_ping_router() {
+  if ! ip netns exec "$ns1" ping -c 1 -q 10.0.2.1 > /dev/null; then
+	return 3
+  fi
+
+  if ! ip netns exec "$ns1" ping -c 1 -q dead:2::1 > /dev/null; then
+	return 4
+  fi
+
+  return 0
+}
+
+
+listener_ready()
+{
+	local ns="$1"
+	local port="$2"
+	local proto="$3"
+	ss -N "$ns" -ln "$proto" -o "sport = :$port" | grep -q "$port"
+}
+
+test_tproxy_udp_forward()
+{
+	local ip_proto="$1"
+
+	local expect_ns1_ns2="I_M_PROXIED"
+	local expect_ns1_ns3="PONG_NS3"
+	local expect_nsrouter_ns2="PONG_NS2"
+	local expect_nsrouter_ns3="PONG_NS3"
+
+	# derived variables
+	local testname="test_${ip_proto}_udp_forward"
+	local socat_ipproto
+	local ns1_ip
+	local ns2_ip
+	local ns3_ip
+	local ns1_ip_port
+	local ns2_ip_port
+	local ns3_ip_port
+	local ip_command
+
+	# socat 1.8.0 has a bug that requires to specify the IP family to bind (fixed in 1.8.0.1)
+	case $ip_proto in
+	"ip")
+		socat_ipproto="-4"
+		ns1_ip=10.0.1.99
+		ns2_ip=10.0.2.99
+		ns3_ip=10.0.3.99
+		ns1_ip_port="$ns1_ip:18888"
+		ns2_ip_port="$ns2_ip:8080"
+		ns3_ip_port="$ns3_ip:8080"
+		ip_command="ip"
+	;;
+	"ip6")
+		socat_ipproto="-6"
+		ns1_ip=dead:1::99
+		ns2_ip=dead:2::99
+		ns3_ip=dead:3::99
+		ns1_ip_port="[$ns1_ip]:18888"
+		ns2_ip_port="[$ns2_ip]:8080"
+		ns3_ip_port="[$ns3_ip]:8080"
+		ip_command="ip -6"
+	;;
+	*)
+	echo "FAIL: unsupported protocol"
+	exit 255
+	;;
+	esac
+
+	# shellcheck disable=SC2046 # Intended splitting of ip_command
+	ip netns exec "$nsrouter" $ip_command rule add fwmark 1 table 100
+	ip netns exec "$nsrouter" $ip_command route add local "$ns2_ip" dev lo table 100
+	ip netns exec "$nsrouter" nft -f /dev/stdin <<EOF
+flush ruleset
+table inet filter {
+	chain divert {
+		type filter hook prerouting priority 0; policy accept;
+		$ip_proto daddr $ns2_ip udp dport 8080 tproxy $ip_proto to :12345 meta mark set 1 accept
+	}
+}
+EOF
+
+	timeout "$timeout" ip netns exec "$nsrouter" socat -u "$socat_ipproto" udp-listen:12345,fork,ip-transparent,reuseport udp:"$ns1_ip_port",ip-transparent,reuseport,bind="$ns2_ip_port" 2>/dev/null &
+	local tproxy_pid=$!
+
+	timeout "$timeout" ip netns exec "$ns2" socat "$socat_ipproto" udp-listen:8080,fork SYSTEM:"echo PONG_NS2" 2>/dev/null &
+	local server2_pid=$!
+
+	timeout "$timeout" ip netns exec "$ns3" socat "$socat_ipproto" udp-listen:8080,fork SYSTEM:"echo PONG_NS3" 2>/dev/null &
+	local server3_pid=$!
+
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$nsrouter" 12345 "-u"
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns2" 8080 "-u"
+	busywait "$BUSYWAIT_TIMEOUT" listener_ready "$ns3" 8080 "-u"
+
+	local result
+	# request from ns1 to ns2 (forwarded traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$ns1" socat -t 2 -T 2 STDIO udp:"$ns2_ip_port",sourceport=18888)
+	if [ "$result" == "$expect_ns1_ns2" ] ;then
+		echo "PASS: tproxy test $testname: ns1 got reply \"$result\" connecting to ns2"
+	else
+		echo "ERROR: tproxy test $testname: ns1 got reply \"$result\" connecting to ns2, not \"${expect_ns1_ns2}\" as intended"
+		ret=1
+	fi
+
+	# request from ns1 to ns3 (forwarded traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$ns1" socat -t 2 -T 2 STDIO udp:"$ns3_ip_port")
+	if [ "$result" = "$expect_ns1_ns3" ] ;then
+		echo "PASS: tproxy test $testname: ns1 got reply \"$result\" connecting to ns3"
+	else
+		echo "ERROR: tproxy test $testname: ns1 got reply \"$result\" connecting to ns3, not \"$expect_ns1_ns3\" as intended"
+		ret=1
+	fi
+
+	# request from nsrouter to ns2 (localy originated traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$nsrouter" socat -t 2 -T 2 STDIO udp:"$ns2_ip_port")
+	if [ "$result" == "$expect_nsrouter_ns2" ] ;then
+		echo "PASS: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns2"
+	else
+		echo "ERROR: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns2, not \"$expect_nsrouter_ns2\" as intended"
+		ret=1
+	fi
+
+	# request from nsrouter to ns3 (localy originated traffic)
+	result=$(echo I_M_PROXIED | ip netns exec "$nsrouter" socat -t 2 -T 2 STDIO udp:"$ns3_ip_port")
+	if [ "$result" = "$expect_nsrouter_ns3" ] ;then
+		echo "PASS: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns3"
+	else
+		echo "ERROR: tproxy test $testname: nsrouter got reply \"$result\" connecting to ns3, not \"$expect_nsrouter_ns3\"  as intended"
+		ret=1
+	fi
+
+	# cleanup
+	kill "$tproxy_pid" "$server2_pid" "$server3_pid" 2>/dev/null
+	# shellcheck disable=SC2046 # Intended splitting of ip_command
+	ip netns exec "$nsrouter" $ip_command rule del fwmark 1 table 100
+	ip netns exec "$nsrouter" $ip_command route flush table 100
+}
+
+
+if test_ping; then
+	# queue bypass works (rules were skipped, no listener)
+	echo "PASS: ${ns1} can reach ${ns2}"
+else
+	echo "FAIL: ${ns1} cannot reach ${ns2}: $ret" 1>&2
+	exit $ret
+fi
+
+test_tproxy_udp_forward "ip"
+test_tproxy_udp_forward "ip6"
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/nft_zones_many.sh b/tools/testing/selftests/net/netfilter/nft_zones_many.sh
new file mode 100755
index 000000000000..7db9982ba5a6
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/nft_zones_many.sh
@@ -0,0 +1,164 @@
+#!/bin/bash
+
+# Test insertion speed for packets with identical addresses/ports
+# that are all placed in distinct conntrack zones.
+
+source lib.sh
+
+zones=2000
+[ "$KSFT_MACHINE_SLOW" = yes ] && zones=500
+
+have_ct_tool=0
+ret=0
+
+cleanup()
+{
+	cleanup_all_ns
+}
+
+checktool "nft --version" "run test without nft tool"
+checktool "socat -V" "run test without socat tool"
+
+setup_ns ns1
+
+trap cleanup EXIT
+
+if conntrack -V > /dev/null 2>&1; then
+	have_ct_tool=1
+fi
+
+test_zones() {
+	local max_zones=$1
+
+ip netns exec "$ns1" nft -f /dev/stdin<<EOF
+flush ruleset
+table inet raw {
+	map rndzone {
+		typeof numgen inc mod $max_zones : ct zone
+	}
+
+	chain output {
+		type filter hook output priority -64000; policy accept;
+		udp dport 12345  ct zone set numgen inc mod 65536 map @rndzone
+	}
+}
+EOF
+if [ "$?" -ne 0 ];then
+	echo "SKIP: Cannot add nftables rules"
+	exit $ksft_skip
+fi
+
+	ip netns exec "$ns1" sysctl -q net.netfilter.nf_conntrack_udp_timeout=3600
+
+	(
+		echo "add element inet raw rndzone {"
+	for i in $(seq 1 "$max_zones");do
+		echo -n "$i : $i"
+		if [ "$i" -lt "$max_zones" ]; then
+			echo ","
+		else
+			echo "}"
+		fi
+	done
+	) | ip netns exec "$ns1" nft -f /dev/stdin
+
+	local i=0
+	local j=0
+	local outerstart
+	local stop
+	outerstart=$(date +%s%3N)
+	stop=$outerstart
+
+	while [ "$i" -lt "$max_zones" ]; do
+		local start
+		start=$(date +%s%3N)
+		i=$((i + 1000))
+		j=$((j + 1))
+		# nft rule in output places each packet in a different zone.
+		dd if=/dev/zero bs=8k count=1000 2>/dev/null | ip netns exec "$ns1" socat -u STDIN UDP:127.0.0.1:12345,sourceport=12345
+		if [ $? -ne 0 ] ;then
+			ret=1
+			break
+		fi
+
+		stop=$(date +%s%3N)
+		local duration=$((stop-start))
+		echo "PASS: added 1000 entries in $duration ms (now $i total, loop $j)"
+	done
+
+	if [ "$have_ct_tool" -eq 1 ]; then
+		local count duration
+		count=$(ip netns exec "$ns1" conntrack -C)
+		duration=$((stop-outerstart))
+
+		if [ "$count" -ge "$max_zones" ]; then
+			echo "PASS: inserted $count entries from packet path in $duration ms total"
+		else
+			ip netns exec "$ns1" conntrack -S 1>&2
+			echo "FAIL: inserted $count entries from packet path in $duration ms total, expected $max_zones entries"
+			ret=1
+		fi
+	fi
+
+	if [ $ret -ne 0 ];then
+		echo "FAIL: insert $max_zones entries from packet path" 1>&2
+	fi
+}
+
+test_conntrack_tool() {
+	local max_zones=$1
+
+	ip netns exec "$ns1" conntrack -F >/dev/null 2>/dev/null
+
+	local outerstart start stop i
+	outerstart=$(date +%s%3N)
+	start=$(date +%s%3N)
+	stop="$start"
+	i=0
+	while [ "$i" -lt "$max_zones" ]; do
+		i=$((i + 1))
+		ip netns exec "$ns1" conntrack -I -s 1.1.1.1 -d 2.2.2.2 --protonum 6 \
+	                 --timeout 3600 --state ESTABLISHED --sport 12345 --dport 1000 --zone $i >/dev/null 2>&1
+		if [ $? -ne 0 ];then
+			ip netns exec "$ns1" conntrack -I -s 1.1.1.1 -d 2.2.2.2 --protonum 6 \
+	                 --timeout 3600 --state ESTABLISHED --sport 12345 --dport 1000 --zone $i > /dev/null
+			echo "FAIL: conntrack -I returned an error"
+			ret=1
+			break
+		fi
+
+		if [ $((i%1000)) -eq 0 ];then
+			stop=$(date +%s%3N)
+
+			local duration=$((stop-start))
+			echo "PASS: added 1000 entries in $duration ms (now $i total)"
+			start=$stop
+		fi
+	done
+
+	local count
+	local duration
+	count=$(ip netns exec "$ns1" conntrack -C)
+	duration=$((stop-outerstart))
+
+	if [ "$count" -eq "$max_zones" ]; then
+		echo "PASS: inserted $count entries via ctnetlink in $duration ms"
+	else
+		ip netns exec "$ns1" conntrack -S 1>&2
+		echo "FAIL: inserted $count entries via ctnetlink in $duration ms, expected $max_zones entries ($duration ms)"
+		ret=1
+	fi
+}
+
+test_zones $zones
+
+if [ "$have_ct_tool" -eq 1 ];then
+	test_conntrack_tool $zones
+else
+	echo "SKIP: Could not run ctnetlink insertion test without conntrack tool"
+	if [ $ret -eq 0 ];then
+		exit $ksft_skip
+	fi
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/common.sh b/tools/testing/selftests/net/netfilter/packetdrill/common.sh
new file mode 100755
index 000000000000..ed36d535196d
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/common.sh
@@ -0,0 +1,33 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# for debugging set net.netfilter.nf_log_all_netns=1 in init_net
+# or do not use net namespaces.
+modprobe -q nf_conntrack
+sysctl -q net.netfilter.nf_conntrack_log_invalid=6
+
+# Flush old cached data (fastopen cookies).
+ip tcp_metrics flush all > /dev/null 2>&1
+
+# TCP min, default, and max receive and send buffer sizes.
+sysctl -q net.ipv4.tcp_rmem="4096 540000 $((15*1024*1024))"
+sysctl -q net.ipv4.tcp_wmem="4096 $((256*1024)) 4194304"
+
+# TCP congestion control.
+sysctl -q net.ipv4.tcp_congestion_control=cubic
+
+# TCP slow start after idle.
+sysctl -q net.ipv4.tcp_slow_start_after_idle=0
+
+# TCP Explicit Congestion Notification (ECN)
+sysctl -q net.ipv4.tcp_ecn=0
+
+sysctl -q net.ipv4.tcp_notsent_lowat=4294967295 > /dev/null 2>&1
+
+# Override the default qdisc on the tun device.
+# Many tests fail with timing errors if the default
+# is FQ and that paces their flows.
+tc qdisc add dev tun0 root pfifo
+
+# Enable conntrack
+$xtables -A INPUT -m conntrack --ctstate NEW -p tcp --syn
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_ack_loss_stall.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_ack_loss_stall.pkt
new file mode 100644
index 000000000000..d755bd64c54f
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_ack_loss_stall.pkt
@@ -0,0 +1,118 @@
+// check that already-acked (retransmitted) packet is let through rather
+// than tagged as INVALID.
+
+`packetdrill/common.sh`
+
+// should set -P DROP but it disconnects VM w.o. extra netns
++0 `$xtables -A INPUT -m conntrack --ctstate INVALID -j DROP`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
++0 bind(3, ..., ...) = 0
++0 listen(3, 10) = 0
+
++0 < S 0:0(0) win 32792 <mss 1000>
++0 > S. 0:0(0) ack 1 <mss 1460>
++.01 < . 1:1(0) ack 1 win 65535
++0 accept(3, ..., ...) = 4
+
++0.0001 < P. 1:1461(1460) ack 1 win 257
++.0 > . 1:1(0) ack 1461 win 65535
++0.0001 < P. 1461:2921(1460) ack 1 win 257
++.0 > . 1:1(0) ack 2921 win 65535
++0.0001 < P. 2921:4381(1460) ack 1 win 257
++.0 > . 1:1(0) ack 4381 win 65535
++0.0001 < P. 4381:5841(1460) ack 1 win 257
++.0 > . 1:1(0) ack 5841 win 65535
++0.0001 < P. 5841:7301(1460) ack 1 win 257
++.0 > . 1:1(0) ack 7301 win 65535
++0.0001 < P. 7301:8761(1460) ack 1 win 257
++.0 > . 1:1(0) ack 8761 win 65535
++0.0001 < P. 8761:10221(1460) ack 1 win 257
++.0 > . 1:1(0) ack 10221 win 65535
++0.0001 < P. 10221:11681(1460) ack 1 win 257
++.0 > . 1:1(0) ack 11681 win 65535
++0.0001 < P. 11681:13141(1460) ack 1 win 257
++.0 > . 1:1(0) ack 13141 win 65535
++0.0001 < P. 13141:14601(1460) ack 1 win 257
++.0 > . 1:1(0) ack 14601 win 65535
++0.0001 < P. 14601:16061(1460) ack 1 win 257
++.0 > . 1:1(0) ack 16061 win 65535
++0.0001 < P. 16061:17521(1460) ack 1 win 257
++.0 > . 1:1(0) ack 17521 win 65535
++0.0001 < P. 17521:18981(1460) ack 1 win 257
++.0 > . 1:1(0) ack 18981 win 65535
++0.0001 < P. 18981:20441(1460) ack 1 win 257
++.0 > . 1:1(0) ack 20441 win 65535
++0.0001 < P. 20441:21901(1460) ack 1 win 257
++.0 > . 1:1(0) ack 21901 win 65535
++0.0001 < P. 21901:23361(1460) ack 1 win 257
++.0 > . 1:1(0) ack 23361 win 65535
++0.0001 < P. 23361:24821(1460) ack 1 win 257
+0.055 > . 1:1(0) ack 24821 win 65535
++0.0001 < P. 24821:26281(1460) ack 1 win 257
++.0 > . 1:1(0) ack 26281 win 65535
++0.0001 < P. 26281:27741(1460) ack 1 win 257
++.0 > . 1:1(0) ack 27741 win 65535
++0.0001 < P. 27741:29201(1460) ack 1 win 257
++.0 > . 1:1(0) ack 29201 win 65535
++0.0001 < P. 29201:30661(1460) ack 1 win 257
++.0 > . 1:1(0) ack 30661 win 65535
++0.0001 < P. 30661:32121(1460) ack 1 win 257
++.0 > . 1:1(0) ack 32121 win 65535
++0.0001 < P. 32121:33581(1460) ack 1 win 257
++.0 > . 1:1(0) ack 33581 win 65535
++0.0001 < P. 33581:35041(1460) ack 1 win 257
++.0 > . 1:1(0) ack 35041 win 65535
++0.0001 < P. 35041:36501(1460) ack 1 win 257
++.0 > . 1:1(0) ack 36501 win 65535
++0.0001 < P. 36501:37961(1460) ack 1 win 257
++.0 > . 1:1(0) ack 37961 win 65535
++0.0001 < P. 37961:39421(1460) ack 1 win 257
++.0 > . 1:1(0) ack 39421 win 65535
++0.0001 < P. 39421:40881(1460) ack 1 win 257
++.0 > . 1:1(0) ack 40881 win 65535
++0.0001 < P. 40881:42341(1460) ack 1 win 257
++.0 > . 1:1(0) ack 42341 win 65535
++0.0001 < P. 42341:43801(1460) ack 1 win 257
++.0 > . 1:1(0) ack 43801 win 65535
++0.0001 < P. 43801:45261(1460) ack 1 win 257
++.0 > . 1:1(0) ack 45261 win 65535
++0.0001 < P. 45261:46721(1460) ack 1 win 257
++.0 > . 1:1(0) ack 46721 win 65535
++0.0001 < P. 46721:48181(1460) ack 1 win 257
++.0 > . 1:1(0) ack 48181 win 65535
++0.0001 < P. 48181:49641(1460) ack 1 win 257
++.0 > . 1:1(0) ack 49641 win 65535
++0.0001 < P. 49641:51101(1460) ack 1 win 257
++.0 > . 1:1(0) ack 51101 win 65535
++0.0001 < P. 51101:52561(1460) ack 1 win 257
++.0 > . 1:1(0) ack 52561 win 65535
++0.0001 < P. 52561:54021(1460) ack 1 win 257
++.0 > . 1:1(0) ack 54021 win 65535
++0.0001 < P. 54021:55481(1460) ack 1 win 257
++.0 > . 1:1(0) ack 55481 win 65535
++0.0001 < P. 55481:56941(1460) ack 1 win 257
++.0 > . 1:1(0) ack 56941 win 65535
++0.0001 < P. 56941:58401(1460) ack 1 win 257
++.0 > . 1:1(0) ack 58401 win 65535
++0.0001 < P. 58401:59861(1460) ack 1 win 257
++.0 > . 1:1(0) ack 59861 win 65535
++0.0001 < P. 59861:61321(1460) ack 1 win 257
++.0 > . 1:1(0) ack 61321 win 65535
++0.0001 < P. 61321:62781(1460) ack 1 win 257
++.0 > . 1:1(0) ack 62781 win 65535
++0.0001 < P. 62781:64241(1460) ack 1 win 257
++.0 > . 1:1(0) ack 64241 win 65535
++0.0001 < P. 64241:65701(1460) ack 1 win 257
++.0 > . 1:1(0) ack 65701 win 65535
++0.0001 < P. 65701:67161(1460) ack 1 win 257
++.0 > . 1:1(0) ack 67161 win 65535
+
+// nf_ct_proto_6: SEQ is under the lower bound (already ACKed data retransmitted) IN=tun0 OUT= MAC= SRC=192.0.2.1 DST=192.168.24.72 LEN=1500 TOS=0x00 PREC=0x00 TTL=255 ID=0 PROTO=TCP SPT=34375 DPT=8080 SEQ=1 ACK=4162510439 WINDOW=257 RES=0x00 ACK PSH URGP=0
++0.0001 < P. 1:1461(1460) ack 1 win 257
+
+// only sent if above packet isn't flagged as invalid
++.0 > . 1:1(0) ack 67161 win 65535
+
++0 `$xtables -D INPUT -m conntrack --ctstate INVALID -j DROP`
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_inexact_rst.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_inexact_rst.pkt
new file mode 100644
index 000000000000..dccdd4c009c6
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_inexact_rst.pkt
@@ -0,0 +1,62 @@
+// check RST packet that doesn't exactly match expected next sequence
+// number still transitions conntrack state to CLOSE iff its already in
+// FIN/CLOSE_WAIT.
+
+`packetdrill/common.sh`
+
+//  5.771921 server_ip > client_ip TLSv1.2 337 [Packet size limited during capture]
+//  5.771994 server_ip > client_ip TLSv1.2 337 [Packet size limited during capture]
+//  5.772212 client_ip > server_ip TCP 66 45020 > 443 [ACK] Seq=1905874048 Ack=781810658 Win=36352 Len=0 TSval=3317842872 TSecr=675936334
+//  5.787924 server_ip > client_ip TLSv1.2 1300 [Packet size limited during capture]
+//  5.788126 server_ip > client_ip TLSv1.2 90 Application Data
+//  5.788207 server_ip > client_ip TCP 66 443 > 45020 [FIN, ACK] Seq=781811916 Ack=1905874048 Win=31104 Len=0 TSval=675936350 TSecr=3317842872
+//  5.788447 client_ip > server_ip TLSv1.2 90 Application Data
+//  5.788479 client_ip > server_ip TCP 66 45020 > 443 [RST, ACK] Seq=1905874072 Ack=781811917 Win=39040 Len=0 TSval=3317842889 TSecr=675936350
+//  5.788581 server_ip > client_ip TCP 54 8443 > 45020 [RST] Seq=781811892 Win=0 Len=0
+
++0 `iptables -A INPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
++0 `iptables -A OUTPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+0.1 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+
+0.1 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1 ecr 0,nop,wscale 8>
+
++0.1 < S. 1:1(0) ack 1 win 65535 <mss 1460>
+
++0 > . 1:1(0) ack 1 win 65535
++0 < . 1:1001(1000) ack 1 win 65535
++0 < . 1001:2001(1000) ack 1 win 65535
++0 < . 2001:3001(1000) ack 1 win 65535
+
++0 > . 1:1(0) ack 1001 win 65535
++0 > . 1:1(0) ack 2001 win 65535
++0 > . 1:1(0) ack 3001 win 65535
+
++0 write(3, ..., 1000) = 1000
+
++0.0 > P. 1:1001(1000) ack 3001 win 65535
+
++0.1 read(3, ..., 1000) = 1000
+
+// Conntrack should move to FIN_WAIT, then CLOSE_WAIT.
++0 < F. 3001:3001(0) ack 1001 win 65535
++0 >  . 1001:1001(0) ack 3002 win 65535
+
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q CLOSE_WAIT`
+
++1 close(3) = 0
+// RST: unread data. FIN was seen, hence ack + 1
++0 > R. 1001:1001(0) ack 3002 win 65535
+// ... and then, CLOSE.
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q CLOSE\ `
+
+// Spurious RST from peer -- no sk state.  Should NOT get
+// marked INVALID, because conntrack is already closing.
++0.1 < R 2001:2001(0) win 0
+
+// No packets should have been marked INVALID
++0 `iptables -v -S INPUT  | grep INVALID | grep -q -- "-c 0 0"`
++0 `iptables -v -S OUTPUT | grep INVALID | grep -q -- "-c 0 0"`
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_rst_invalid.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_rst_invalid.pkt
new file mode 100644
index 000000000000..686f18a3d9ef
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_rst_invalid.pkt
@@ -0,0 +1,59 @@
+// check that out of window resets are marked as INVALID and conntrack remains
+// in ESTABLISHED state.
+
+`packetdrill/common.sh`
+
++0 `$xtables -A INPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
++0 `$xtables -A OUTPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+0.1 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+
+0.1 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1 ecr 0,nop,wscale 8>
+
++0.1 < S. 1:1(0) ack 1 win 65535 <mss 1460>
+
++0 > . 1:1(0) ack 1 win 65535
++0 < . 1:1001(1000) ack 1 win 65535
++0 < . 1001:2001(1000) ack 1 win 65535
++0 < . 2001:3001(1000) ack 1 win 65535
+
++0 > . 1:1(0) ack 1001 win 65535
++0 > . 1:1(0) ack 2001 win 65535
++0 > . 1:1(0) ack 3001 win 65535
+
++0 write(3, ..., 1000) = 1000
+
+// out of window
++0.0 < R	0:0(0)	win 0
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q ESTABLISHED`
+
+// out of window
++0.0 < R	1000000:1000000(0)	win 0
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q ESTABLISHED`
+
+// in-window but not exact match
++0.0 < R	42:42(0)	win 0
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q ESTABLISHED`
+
++0.0 > P. 1:1001(1000) ack 3001 win 65535
+
++0.1 read(3, ..., 1000) = 1000
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q ESTABLISHED`
+
++0 < . 3001:3001(0) ack 1001 win 65535
+
++0.0 < R. 3000:3000(0) ack 1001 win 0
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q ESTABLISHED`
+
+// exact next sequence
++0.0 < R. 3001:3001(0) ack 1001 win 0
+// Conntrack should move to CLOSE
+
+// Expect four invalid RSTs
++0 `$xtables -v -S INPUT  | grep INVALID | grep -q -- "-c 4 "`
++0 `$xtables -v -S OUTPUT | grep INVALID | grep -q -- "-c 0 0"`
+
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null |grep -q CLOSE\ `
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_syn_challenge_ack.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_syn_challenge_ack.pkt
new file mode 100644
index 000000000000..3442cd29bc93
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_syn_challenge_ack.pkt
@@ -0,0 +1,44 @@
+// Check connection re-use, i.e. peer that receives the SYN answers with
+// a challenge-ACK.
+// Check that conntrack lets all packets pass, including the challenge ack,
+// and that a new connection is established.
+
+`packetdrill/common.sh`
+
+// S  >
+//  . < (challnge-ack)
+// R. >
+// S  >
+// S. <
+// Expected outcome: established connection.
+
++0 `$xtables -A INPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
++0 `$xtables -A OUTPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+0.1 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+0.1 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1 ecr 0,nop,wscale 8>
+
+// Challenge ACK, old incarnation.
+0.1 < . 145824453:145824453(0) ack 643160523 win 240 <mss 1460,nop,nop,TS val 1 ecr 1,nop,wscale 0>
+
++0.01 > R 643160523:643160523(0) win 0
+
++0.01 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep UNREPLIED | grep -q SYN_SENT`
+
+// Must go through.
++0.01 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1 ecr 0,nop,wscale 8>
+
+// correct synack
++0.1 < S. 0:0(0) ack 1 win 250 <mss 1460,nop,nop,TS val 1 ecr 1,nop,wscale 0>
+
+// 3whs completes.
++0.01 > . 1:1(0) ack 1 win 256 <nop,nop,TS val 1 ecr 1>
+
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep ESTABLISHED | grep -q ASSURED`
+
+// No packets should have been marked INVALID
++0 `$xtables -v -S INPUT  | grep INVALID | grep -q -- "-c 0 0"`
++0 `$xtables -v -S OUTPUT | grep INVALID | grep -q -- "-c 0 0"`
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_old.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_old.pkt
new file mode 100644
index 000000000000..3047160c4bf3
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_old.pkt
@@ -0,0 +1,51 @@
+// Check conntrack copes with syn/ack reply for a previous, old incarnation.
+
+// tcpdump with buggy sequence
+// 10.176.25.8.829 > 10.192.171.30.2049: Flags [S], seq 2375731741, win 29200, options [mss 1460,sackOK,TS val 2083107423 ecr 0,nop,wscale 7], length 0
+// OLD synack, for old/previous S
+// 10.192.171.30.2049 > 10.176.25.8.829: Flags [S.], seq 145824453, ack 643160523, win 65535, options [mss 8952,nop,wscale 5,TS val 3215437785 ecr 2082921663,nop,nop], length 0
+// This reset never makes it to the endpoint, elided in the packetdrill script
+// 10.192.171.30.2049 > 10.176.25.8.829: Flags [R.], seq 1, ack 1, win 65535, options [mss 8952,nop,wscale 5,TS val 3215443451 ecr 2082921663,nop,nop], length 0
+// Syn retransmit, no change
+// 10.176.25.8.829 > 10.192.171.30.2049: Flags [S], seq 2375731741, win 29200, options [mss 1460,sackOK,TS val 2083115583 ecr 0,nop,wscale 7], length 0
+// CORRECT synack, should be accepted, but conntrack classified this as INVALID:
+// SEQ is over the upper bound (over the window of the receiver) IN=tun0 OUT= MAC= SRC=192.0.2.1 DST=192.168.37.78 LEN=40 TOS=0x00 PREC=0x00 TTL=255 ID=0 PROTO=TCP SPT=8080 DPT=34500 SEQ=162602411 ACK=2124350315 ..
+// 10.192.171.30.2049 > 10.176.25.8.829: Flags [S.], seq 162602410, ack 2375731742, win 65535, options [mss 8952,nop,wscale 5,TS val 3215445754 ecr 2083115583,nop,nop], length 0
+
+`packetdrill/common.sh`
+
++0 `$xtables -A INPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
++0 `$xtables -A OUTPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+0.1 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+0.1 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1 ecr 0,nop,wscale 8>
+
+// bogus/outdated synack, invalid ack value
+0.1 < S. 145824453:145824453(0) ack 643160523 win 240 <mss 1440,nop,nop,TS val 1 ecr 1,nop,wscale 0>
+
+// syn retransmitted
+1.01 > S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1015 ecr 0,nop,wscale 8>
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep UNREPLIED | grep -q SYN_SENT`
+
+// correct synack
++0 < S. 145758918:145758918(0) ack 1 win 250 <mss 1460,nop,nop,TS val 1 ecr 1,nop,wscale 0>
++0 write(3, ..., 1) = 1
+
+// with buggy conntrack above packet is dropped, so SYN rtx is seen:
+// script packet:  1.054007 . 1:1(0) ack 16777958 win 256 <nop,nop,TS val 1033 ecr 1>
+// actual packet:  3.010000 S 0:0(0) win 65535 <mss 1460,sackOK,TS val 1015 ecr 0,nop,wscale 8>
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep ESTABLISHED | grep -q ASSURED`
+
++0 > P. 1:2(1) ack 4294901762 win 256 <nop,nop,TS val 1067 ecr 1>
+
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep ASSURED | grep -q ESTABLISHED`
+
+// No packets should have been marked INVALID in OUTPUT direction, 1 in INPUT
++0 `$xtables -v -S OUTPUT | grep INVALID | grep -q -- "-c 0 0"`
++0 `$xtables -v -S INPUT  | grep INVALID | grep -q -- "-c 1 "`
+
++0 `$xtables -D INPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
++0 `$xtables -D OUTPUT -p tcp -m conntrack --ctstate INVALID -j DROP`
diff --git a/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_reuse.pkt b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_reuse.pkt
new file mode 100644
index 000000000000..842242f8ccf7
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/packetdrill/conntrack_synack_reuse.pkt
@@ -0,0 +1,34 @@
+// Check reception of another SYN while we have an established conntrack state.
+// Challenge ACK is supposed to pass through, RST reply should clear conntrack
+// state and SYN retransmit should give us new 'SYN_RECV' connection state.
+
+`packetdrill/common.sh`
+
+// should show a match if bug is present:
++0 `iptables -A INPUT -m conntrack --ctstate INVALID -p tcp --tcp-flags SYN,ACK SYN,ACK`
+
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
++0 bind(3, ..., ...) = 0
++0 listen(3, 10) = 0
+
++0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7, TS val 1 ecr 0,nop,nop>
++0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,TS val 100 ecr 1,nop,wscale 8>
++.01 < . 1:1(0) ack 1 win 257 <TS val 1 ecr 100,nop,nop>
++0 accept(3, ..., ...) = 4
+
++0 < P. 1:101(100) ack 1 win 257 <TS val 2 ecr 100,nop,nop>
++.001 > . 1:1(0) ack 101 win 256 <nop,nop,TS val 110 ecr 2>
++0 read(4, ..., 101) = 100
+
+1.0 < S 2000:2000(0) win 32792 <mss 1000,nop,wscale 7, TS val 233 ecr 0,nop,nop>
+// Won't expect this: challenge ack.
+
++0 > . 1:1(0) ack 101 win 256 <nop,nop,TS val 112 ecr 2>
++0 < R. 101:101(0) ack 1 win 257
++0 close(4) = 0
+
+1.5 < S 2000:2000(0) win 32792 <mss 1000,nop,wscale 0, TS val 233 ecr 0,nop,nop>
+
++0 `conntrack -f $NFCT_IP_VERSION -L -p tcp --dport 8080 2>/dev/null | grep -q SYN_RECV`
++0 `iptables -v -S INPUT | grep INVALID | grep -q -- "-c 0 0"`
diff --git a/tools/testing/selftests/net/netfilter/rpath.sh b/tools/testing/selftests/net/netfilter/rpath.sh
new file mode 100755
index 000000000000..24ad41d526d9
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/rpath.sh
@@ -0,0 +1,181 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+# search for legacy iptables (it uses the xtables extensions
+if iptables-legacy --version >/dev/null 2>&1; then
+	iptables='iptables-legacy'
+elif iptables --version >/dev/null 2>&1; then
+	iptables='iptables'
+else
+	iptables=''
+fi
+
+if ip6tables-legacy --version >/dev/null 2>&1; then
+	ip6tables='ip6tables-legacy'
+elif ip6tables --version >/dev/null 2>&1; then
+	ip6tables='ip6tables'
+else
+	ip6tables=''
+fi
+
+if nft --version >/dev/null 2>&1; then
+	nft='nft'
+else
+	nft=''
+fi
+
+if [ -z "$iptables$ip6tables$nft" ]; then
+	echo "SKIP: Test needs iptables, ip6tables or nft"
+	exit $ksft_skip
+fi
+
+trap cleanup_all_ns EXIT
+
+# create two netns, keep IPv6 address when moving into VRF
+setup_ns ns1 ns2
+ip netns exec "$ns2" sysctl -q net.ipv6.conf.all.keep_addr_on_down=1
+
+# a standard connection between the netns, should not trigger rp filter
+ip -net "$ns1" link add v0 type veth peer name v0 netns "$ns2"
+ip -net "$ns1" link set v0 up; ip -net "$ns2" link set v0 up
+ip -net "$ns1" a a 192.168.23.2/24 dev v0
+ip -net "$ns2" a a 192.168.23.1/24 dev v0
+ip -net "$ns1" a a fec0:23::2/64 dev v0 nodad
+ip -net "$ns2" a a fec0:23::1/64 dev v0 nodad
+
+# rp filter testing: ns1 sends packets via v0 which ns2 would route back via d0
+ip -net "$ns2" link add d0 type dummy
+ip -net "$ns2" link set d0 up
+ip -net "$ns1" a a 192.168.42.2/24 dev v0
+ip -net "$ns2" a a 192.168.42.1/24 dev d0
+ip -net "$ns1" a a fec0:42::2/64 dev v0 nodad
+ip -net "$ns2" a a fec0:42::1/64 dev d0 nodad
+
+# avoid neighbor lookups and enable martian IPv6 pings
+ns2_hwaddr=$(ip -net "$ns2" link show dev v0 | \
+	     sed -n 's, *link/ether \([^ ]*\) .*,\1,p')
+ns1_hwaddr=$(ip -net "$ns1" link show dev v0 | \
+	     sed -n 's, *link/ether \([^ ]*\) .*,\1,p')
+ip -net "$ns1" neigh add fec0:42::1 lladdr "$ns2_hwaddr" nud permanent dev v0
+ip -net "$ns1" neigh add fec0:23::1 lladdr "$ns2_hwaddr" nud permanent dev v0
+ip -net "$ns2" neigh add fec0:42::2 lladdr "$ns1_hwaddr" nud permanent dev d0
+ip -net "$ns2" neigh add fec0:23::2 lladdr "$ns1_hwaddr" nud permanent dev v0
+
+# firewall matches to test
+[ -n "$iptables" ] && {
+	common='-t raw -A PREROUTING -s 192.168.0.0/16'
+	common+=' -p icmp --icmp-type echo-request'
+	if ! ip netns exec "$ns2" "$iptables" $common -m rpfilter;then
+		echo "Cannot add rpfilter rule"
+		exit $ksft_skip
+	fi
+	ip netns exec "$ns2" "$iptables" $common -m rpfilter --invert
+}
+[ -n "$ip6tables" ] && {
+	common='-t raw -A PREROUTING -s fec0::/16'
+	common+=' -p icmpv6 --icmpv6-type echo-request'
+	if ! ip netns exec "$ns2" "$ip6tables" $common -m rpfilter;then
+		echo "Cannot add rpfilter rule"
+		exit $ksft_skip
+	fi
+	ip netns exec "$ns2" "$ip6tables" $common -m rpfilter --invert
+}
+[ -n "$nft" ] && ip netns exec "$ns2" $nft -f - <<EOF
+table inet t {
+	chain c {
+		type filter hook prerouting priority raw;
+		ip saddr 192.168.0.0/16 icmp type echo-request \
+			fib saddr . iif oif exists counter
+		ip6 saddr fec0::/16 icmpv6 type echo-request \
+			fib saddr . iif oif exists counter
+	}
+}
+EOF
+
+die() {
+	echo "FAIL: $*"
+	#ip netns exec "$ns2" "$iptables" -t raw -vS
+	#ip netns exec "$ns2" "$ip6tables" -t raw -vS
+	#ip netns exec "$ns2" nft list ruleset
+	exit 1
+}
+
+# check rule counters, return true if rule did not match
+ipt_zero_rule() { # (command)
+	[ -n "$1" ] || return 0
+	ip netns exec "$ns2" "$1" -t raw -vS | grep -q -- "-m rpfilter -c 0 0"
+}
+ipt_zero_reverse_rule() { # (command)
+	[ -n "$1" ] || return 0
+	ip netns exec "$ns2" "$1" -t raw -vS | \
+		grep -q -- "-m rpfilter --invert -c 0 0"
+}
+nft_zero_rule() { # (family)
+	[ -n "$nft" ] || return 0
+	ip netns exec "$ns2" "$nft" list chain inet t c | \
+		grep -q "$1 saddr .* counter packets 0 bytes 0"
+}
+
+netns_ping() { # (netns, args...)
+	local netns="$1"
+	shift
+	ip netns exec "$netns" ping -q -c 1 -W 1 "$@" >/dev/null
+}
+
+clear_counters() {
+	[ -n "$iptables" ] && ip netns exec "$ns2" "$iptables" -t raw -Z
+	[ -n "$ip6tables" ] && ip netns exec "$ns2" "$ip6tables" -t raw -Z
+	if [ -n "$nft" ]; then
+		(
+			echo "delete table inet t";
+			ip netns exec "$ns2" $nft -s list table inet t;
+		) | ip netns exec "$ns2" $nft -f -
+	fi
+}
+
+testrun() {
+	clear_counters
+
+	# test 1: martian traffic should fail rpfilter matches
+	netns_ping "$ns1" -I v0 192.168.42.1 && \
+		die "martian ping 192.168.42.1 succeeded"
+	netns_ping "$ns1" -I v0 fec0:42::1 && \
+		die "martian ping fec0:42::1 succeeded"
+
+	ipt_zero_rule "$iptables" || die "iptables matched martian"
+	ipt_zero_rule "$ip6tables" || die "ip6tables matched martian"
+	ipt_zero_reverse_rule "$iptables" && die "iptables not matched martian"
+	ipt_zero_reverse_rule "$ip6tables" && die "ip6tables not matched martian"
+	nft_zero_rule ip || die "nft IPv4 matched martian"
+	nft_zero_rule ip6 || die "nft IPv6 matched martian"
+
+	clear_counters
+
+	# test 2: rpfilter match should pass for regular traffic
+	netns_ping "$ns1" 192.168.23.1 || \
+		die "regular ping 192.168.23.1 failed"
+	netns_ping "$ns1" fec0:23::1 || \
+		die "regular ping fec0:23::1 failed"
+
+	ipt_zero_rule "$iptables" && die "iptables match not effective"
+	ipt_zero_rule "$ip6tables" && die "ip6tables match not effective"
+	ipt_zero_reverse_rule "$iptables" || die "iptables match over-effective"
+	ipt_zero_reverse_rule "$ip6tables" || die "ip6tables match over-effective"
+	nft_zero_rule ip && die "nft IPv4 match not effective"
+	nft_zero_rule ip6 && die "nft IPv6 match not effective"
+
+}
+
+testrun
+
+# repeat test with vrf device in $ns2
+ip -net "$ns2" link add vrf0 type vrf table 10
+ip -net "$ns2" link set vrf0 up
+ip -net "$ns2" link set v0 master vrf0
+
+testrun
+
+echo "PASS: netfilter reverse path match works as intended"
+exit 0
diff --git a/tools/testing/selftests/net/netfilter/sctp_collision.c b/tools/testing/selftests/net/netfilter/sctp_collision.c
new file mode 100644
index 000000000000..b282d1785c9b
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/sctp_collision.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_in saddr = {}, daddr = {};
+	socklen_t len = sizeof(daddr);
+	struct timeval tv = {25, 0};
+	char buf[] = "hello";
+	int sd, ret;
+
+	if (argc != 6 || (strcmp(argv[1], "server") && strcmp(argv[1], "client"))) {
+		printf("%s <server|client> <LOCAL_IP> <LOCAL_PORT> <REMOTE_IP> <REMOTE_PORT>\n",
+		       argv[0]);
+		return -1;
+	}
+
+	sd = socket(AF_INET, SOCK_SEQPACKET, IPPROTO_SCTP);
+	if (sd < 0) {
+		printf("Failed to create sd\n");
+		return -1;
+	}
+
+	saddr.sin_family = AF_INET;
+	saddr.sin_addr.s_addr = inet_addr(argv[2]);
+	saddr.sin_port = htons(atoi(argv[3]));
+
+	ret = bind(sd, (struct sockaddr *)&saddr, sizeof(saddr));
+	if (ret < 0) {
+		printf("Failed to bind to address\n");
+		goto out;
+	}
+
+	ret = listen(sd, 5);
+	if (ret < 0) {
+		printf("Failed to listen on port\n");
+		goto out;
+	}
+
+	daddr.sin_family = AF_INET;
+	daddr.sin_addr.s_addr = inet_addr(argv[4]);
+	daddr.sin_port = htons(atoi(argv[5]));
+
+	/* make test shorter than 25s */
+	ret = setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+	if (ret < 0) {
+		printf("Failed to setsockopt SO_RCVTIMEO\n");
+		goto out;
+	}
+
+	if (!strcmp(argv[1], "server")) {
+		sleep(1); /* wait a bit for client's INIT */
+		ret = connect(sd, (struct sockaddr *)&daddr, len);
+		if (ret < 0) {
+			printf("Failed to connect to peer\n");
+			goto out;
+		}
+		ret = recvfrom(sd, buf, sizeof(buf), 0, (struct sockaddr *)&daddr, &len);
+		if (ret < 0) {
+			printf("Failed to recv msg %d\n", ret);
+			goto out;
+		}
+		ret = sendto(sd, buf, strlen(buf) + 1, 0, (struct sockaddr *)&daddr, len);
+		if (ret < 0) {
+			printf("Failed to send msg %d\n", ret);
+			goto out;
+		}
+		printf("Server: sent! %d\n", ret);
+	}
+
+	if (!strcmp(argv[1], "client")) {
+		usleep(300000); /* wait a bit for server's listening */
+		ret = connect(sd, (struct sockaddr *)&daddr, len);
+		if (ret < 0) {
+			printf("Failed to connect to peer\n");
+			goto out;
+		}
+		sleep(1); /* wait a bit for server's delayed INIT_ACK to reproduce the issue */
+		ret = sendto(sd, buf, strlen(buf) + 1, 0, (struct sockaddr *)&daddr, len);
+		if (ret < 0) {
+			printf("Failed to send msg %d\n", ret);
+			goto out;
+		}
+		ret = recvfrom(sd, buf, sizeof(buf), 0, (struct sockaddr *)&daddr, &len);
+		if (ret < 0) {
+			printf("Failed to recv msg %d\n", ret);
+			goto out;
+		}
+		printf("Client: rcvd! %d\n", ret);
+	}
+	ret = 0;
+out:
+	close(sd);
+	return ret;
+}
diff --git a/tools/testing/selftests/net/netfilter/settings b/tools/testing/selftests/net/netfilter/settings
new file mode 100644
index 000000000000..abc5648b59ab
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/settings
@@ -0,0 +1 @@
+timeout=1800
diff --git a/tools/testing/selftests/net/netfilter/udpclash.c b/tools/testing/selftests/net/netfilter/udpclash.c
new file mode 100644
index 000000000000..79de163d61ab
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/udpclash.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Usage: ./udpclash <IP> <PORT>
+ *
+ * Emit THREAD_COUNT UDP packets sharing the same saddr:daddr pair.
+ *
+ * This mimics DNS resolver libraries that emit A and AAAA requests
+ * in parallel.
+ *
+ * This exercises conntrack clash resolution logic added and later
+ * refined in
+ *
+ *  71d8c47fc653 ("netfilter: conntrack: introduce clash resolution on insertion race")
+ *  ed07d9a021df ("netfilter: nf_conntrack: resolve clash for matching conntracks")
+ *  6a757c07e51f ("netfilter: conntrack: allow insertion of clashing entries")
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <pthread.h>
+
+#define THREAD_COUNT 128
+
+struct thread_args {
+	const struct sockaddr_in *si_remote;
+	int sockfd;
+};
+
+static volatile int wait = 1;
+
+static void *thread_main(void *varg)
+{
+	const struct sockaddr_in *si_remote;
+	const struct thread_args *args = varg;
+	static const char msg[] = "foo";
+
+	si_remote = args->si_remote;
+
+	while (wait == 1)
+		;
+
+	if (sendto(args->sockfd, msg, strlen(msg), MSG_NOSIGNAL,
+		   (struct sockaddr *)si_remote, sizeof(*si_remote)) < 0)
+		exit(111);
+
+	return varg;
+}
+
+static int run_test(int fd, const struct sockaddr_in *si_remote)
+{
+	struct thread_args thread_args = {
+		.si_remote = si_remote,
+		.sockfd = fd,
+	};
+	pthread_t *tid = calloc(THREAD_COUNT, sizeof(pthread_t));
+	unsigned int repl_count = 0, timeout = 0;
+	int i;
+
+	if (!tid) {
+		perror("calloc");
+		return 1;
+	}
+
+	for (i = 0; i < THREAD_COUNT; i++) {
+		int err = pthread_create(&tid[i], NULL, &thread_main, &thread_args);
+
+		if (err != 0) {
+			perror("pthread_create");
+			exit(1);
+		}
+	}
+
+	wait = 0;
+
+	for (i = 0; i < THREAD_COUNT; i++)
+		pthread_join(tid[i], NULL);
+
+	while (repl_count < THREAD_COUNT) {
+		struct sockaddr_in si_repl;
+		socklen_t si_repl_len = sizeof(si_repl);
+		char repl[512];
+		ssize_t ret;
+
+		ret = recvfrom(fd, repl, sizeof(repl), MSG_NOSIGNAL,
+			       (struct sockaddr *) &si_repl, &si_repl_len);
+		if (ret < 0) {
+			if (timeout++ > 5000) {
+				fputs("timed out while waiting for reply from thread\n", stderr);
+				break;
+			}
+
+			/* give reply time to pass though the stack */
+			usleep(1000);
+			continue;
+		}
+
+		if (si_repl_len != sizeof(*si_remote)) {
+			fprintf(stderr, "warning: reply has unexpected repl_len %d vs %d\n",
+				(int)si_repl_len, (int)sizeof(si_repl));
+		} else if (si_remote->sin_addr.s_addr != si_repl.sin_addr.s_addr ||
+			si_remote->sin_port != si_repl.sin_port) {
+			char a[64], b[64];
+
+			inet_ntop(AF_INET, &si_remote->sin_addr, a, sizeof(a));
+			inet_ntop(AF_INET, &si_repl.sin_addr, b, sizeof(b));
+
+			fprintf(stderr, "reply from wrong source: want %s:%d got %s:%d\n",
+				a, ntohs(si_remote->sin_port), b, ntohs(si_repl.sin_port));
+		}
+
+		repl_count++;
+	}
+
+	printf("got %d of %d replies\n", repl_count, THREAD_COUNT);
+
+	free(tid);
+
+	return repl_count == THREAD_COUNT ? 0 : 1;
+}
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_in si_local = {
+		.sin_family = AF_INET,
+	};
+	struct sockaddr_in si_remote = {
+		.sin_family = AF_INET,
+	};
+	int fd, ret;
+
+	if (argc < 3) {
+		fputs("Usage: send_udp <daddr> <dport>\n", stderr);
+		return 1;
+	}
+
+	si_remote.sin_port = htons(atoi(argv[2]));
+	si_remote.sin_addr.s_addr = inet_addr(argv[1]);
+
+	fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_UDP);
+	if (fd < 0) {
+		perror("socket");
+		return 1;
+	}
+
+	if (bind(fd, (struct sockaddr *)&si_local, sizeof(si_local)) < 0) {
+		perror("bind");
+		return 1;
+	}
+
+	ret = run_test(fd, &si_remote);
+
+	close(fd);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/net/netfilter/vxlan_mtu_frag.sh b/tools/testing/selftests/net/netfilter/vxlan_mtu_frag.sh
new file mode 100755
index 000000000000..912cb9583af1
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/vxlan_mtu_frag.sh
@@ -0,0 +1,121 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+if ! modprobe -q -n br_netfilter 2>&1; then
+        echo "SKIP: Test needs br_netfilter kernel module"
+        exit $ksft_skip
+fi
+
+cleanup()
+{
+        cleanup_all_ns
+}
+
+trap cleanup EXIT
+
+setup_ns host vtep router
+
+create_topology()
+{
+    ip link add host-eth0 netns "$host" type veth peer name vtep-host netns "$vtep"
+    ip link add vtep-router netns "$vtep" type veth peer name router-vtep netns "$router"
+}
+
+setup_host()
+{
+    # bring ports up
+    ip -n "$host" addr add 10.0.0.1/24 dev host-eth0
+    ip -n "$host" link set host-eth0 up
+
+    # Add VLAN 10,20
+    for vid in 10 20; do
+        ip -n "$host" link add link host-eth0 name host-eth0.$vid type vlan id $vid
+        ip -n "$host" addr add 10.0.$vid.1/24 dev host-eth0.$vid
+        ip -n "$host" link set host-eth0.$vid up
+    done
+}
+
+setup_vtep()
+{
+    # create bridge on vtep
+    ip -n "$vtep" link add name br0 type bridge
+    ip -n "$vtep" link set br0 type bridge vlan_filtering 1
+
+    # VLAN 10 is untagged PVID
+    ip -n "$vtep" link set dev vtep-host master br0
+    bridge -n "$vtep" vlan add dev vtep-host vid 10 pvid untagged
+
+    # VLAN 20 as other VID
+    ip -n "$vtep" link set dev vtep-host master br0
+    bridge -n "$vtep" vlan add dev vtep-host vid 20
+
+    # single-vxlan device on vtep
+    ip -n "$vtep" address add dev vtep-router 60.0.0.1/24
+    ip -n "$vtep" link add dev vxd type vxlan external \
+        vnifilter local 60.0.0.1 remote 60.0.0.2 dstport 4789 ttl 64
+    ip -n "$vtep" link set vxd master br0
+
+    # Add VLAN-VNI 1-1 mappings
+    bridge -n "$vtep" link set dev vxd vlan_tunnel on
+    for vid in 10 20; do
+        bridge -n "$vtep" vlan add dev vxd vid $vid
+        bridge -n "$vtep" vlan add dev vxd vid $vid tunnel_info id $vid
+        bridge -n "$vtep" vni add dev vxd vni $vid
+    done
+
+    # bring ports up
+    ip -n "$vtep" link set vxd up
+    ip -n "$vtep" link set vtep-router up
+    ip -n "$vtep" link set vtep-host up
+    ip -n "$vtep" link set dev br0 up
+}
+
+setup_router()
+{
+    # bring ports up
+    ip -n "$router" link set router-vtep up
+}
+
+setup()
+{
+    modprobe -q br_netfilter
+    create_topology
+    setup_host
+    setup_vtep
+    setup_router
+}
+
+test_large_mtu_untagged_traffic()
+{
+    ip -n "$vtep" link set vxd mtu 1000
+    ip -n "$host" neigh add 10.0.0.2 lladdr ca:fe:ba:be:00:01 dev host-eth0
+    ip netns exec "$host" \
+        ping -q 10.0.0.2 -I host-eth0 -c 1 -W 0.5 -s2000 > /dev/null 2>&1
+    return 0
+}
+
+test_large_mtu_tagged_traffic()
+{
+    for vid in 10 20; do
+        ip -n "$vtep" link set vxd mtu 1000
+        ip -n "$host" neigh add 10.0.$vid.2 lladdr ca:fe:ba:be:00:01 dev host-eth0.$vid
+        ip netns exec "$host" \
+            ping -q 10.0.$vid.2 -I host-eth0.$vid -c 1 -W 0.5 -s2000 > /dev/null 2>&1
+    done
+    return 0
+}
+
+do_test()
+{
+    # Frames will be dropped so ping will not succeed
+    # If it doesn't panic, it passes
+    test_large_mtu_tagged_traffic
+    test_large_mtu_untagged_traffic
+}
+
+setup && \
+echo "Test for VxLAN fragmentation with large MTU in br_netfilter:" && \
+do_test && echo "PASS!"
+exit $?
diff --git a/tools/testing/selftests/net/netfilter/xt_string.sh b/tools/testing/selftests/net/netfilter/xt_string.sh
new file mode 100755
index 000000000000..8d401c69e317
--- /dev/null
+++ b/tools/testing/selftests/net/netfilter/xt_string.sh
@@ -0,0 +1,133 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# return code to signal skipped test
+ksft_skip=4
+rc=0
+
+source lib.sh
+
+checktool "socat -h" "run test without socat"
+checktool "iptables --version" "test needs iptables"
+
+infile=$(mktemp)
+
+cleanup()
+{
+	ip netns del "$netns"
+	rm -f "$infile"
+}
+
+trap cleanup EXIT
+
+setup_ns netns
+
+ip -net "$netns" link add d0 type dummy
+ip -net "$netns" link set d0 up
+ip -net "$netns" addr add 10.1.2.1/24 dev d0
+
+pattern="foo bar baz"
+patlen=11
+hdrlen=$((20 + 8)) # IPv4 + UDP
+
+#ip netns exec "$netns" tcpdump -npXi d0 &
+#tcpdump_pid=$!
+#trap 'kill $tcpdump_pid; ip netns del $netns' EXIT
+
+add_rule() { # (alg, from, to)
+	ip netns exec "$netns" \
+		iptables -A OUTPUT -o d0 -m string \
+			--string "$pattern" --algo "$1" --from "$2" --to "$3"
+}
+showrules() { # ()
+	ip netns exec "$netns" iptables -v -S OUTPUT | grep '^-A'
+}
+zerorules() {
+	ip netns exec "$netns" iptables -Z OUTPUT
+}
+countrule() { # (pattern)
+	showrules | grep -c -- "$*"
+}
+send() { # (offset)
+	( for ((i = 0; i < $1 - hdrlen; i++)); do
+		echo -n " "
+	  done
+	  echo -n "$pattern"
+	) > "$infile"
+
+	ip netns exec "$netns" socat -t 1 -u STDIN UDP-SENDTO:10.1.2.2:27374 < "$infile"
+}
+
+add_rule bm 1000 1500
+add_rule bm 1400 1600
+add_rule kmp 1000 1500
+add_rule kmp 1400 1600
+
+zerorules
+send 0
+send $((1000 - patlen))
+if [ "$(countrule -c 0 0)" -ne 4 ]; then
+	echo "FAIL: rules match data before --from"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send 1000
+send $((1400 - patlen))
+if [ "$(countrule -c 2)" -ne 2 ]; then
+	echo "FAIL: only two rules should match at low offset"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send $((1500 - patlen))
+if [ "$(countrule -c 1)" -ne 4 ]; then
+	echo "FAIL: all rules should match at end of packet"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send 1495
+if [ "$(countrule -c 1)" -ne 1 ]; then
+	echo "FAIL: only kmp with proper --to should match pattern spanning fragments"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send 1500
+if [ "$(countrule -c 1)" -ne 2 ]; then
+	echo "FAIL: two rules should match pattern at start of second fragment"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send $((1600 - patlen))
+if [ "$(countrule -c 1)" -ne 2 ]; then
+	echo "FAIL: two rules should match pattern at end of largest --to"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send $((1600 - patlen + 1))
+if [ "$(countrule -c 1)" -ne 0 ]; then
+	echo "FAIL: no rules should match pattern extending largest --to"
+	showrules
+	((rc--))
+fi
+
+zerorules
+send 1600
+if [ "$(countrule -c 1)" -ne 0 ]; then
+	echo "FAIL: no rule should match pattern past largest --to"
+	showrules
+	((rc--))
+fi
+
+[ $rc -eq 0 ] && echo "PASS: string match tests"
+exit $rc
diff --git a/tools/testing/selftests/net/netlink-dumps.c b/tools/testing/selftests/net/netlink-dumps.c
new file mode 100644
index 000000000000..51129c564d0a
--- /dev/null
+++ b/tools/testing/selftests/net/netlink-dumps.c
@@ -0,0 +1,263 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <linux/genetlink.h>
+#include <linux/neighbour.h>
+#include <linux/netdevice.h>
+#include <linux/netlink.h>
+#include <linux/mqueue.h>
+#include <linux/rtnetlink.h>
+
+#include "kselftest_harness.h"
+
+#include <ynl.h>
+
+struct ext_ack {
+	int err;
+
+	__u32 attr_offs;
+	__u32 miss_type;
+	__u32 miss_nest;
+	const char *str;
+};
+
+enum get_ea_ret {
+	ERROR = -1,
+	NO_CTRL = 0,
+	FOUND_DONE,
+	FOUND_ERR,
+	FOUND_EXTACK,
+};
+
+static enum get_ea_ret
+nl_get_extack(char *buf, size_t n, struct ext_ack *ea)
+{
+	enum get_ea_ret ret = NO_CTRL;
+	const struct nlmsghdr *nlh;
+	const struct nlattr *attr;
+	ssize_t rem;
+
+	for (rem = n; rem > 0; NLMSG_NEXT(nlh, rem)) {
+		nlh = (struct nlmsghdr *)&buf[n - rem];
+		if (!NLMSG_OK(nlh, rem))
+			return ERROR;
+
+		if (nlh->nlmsg_type == NLMSG_ERROR)
+			ret = FOUND_ERR;
+		else if (nlh->nlmsg_type == NLMSG_DONE)
+			ret = FOUND_DONE;
+		else
+			continue;
+
+		ea->err = -*(int *)NLMSG_DATA(nlh);
+
+		if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS))
+			return ret;
+
+		ynl_attr_for_each(attr, nlh, sizeof(int)) {
+			switch (ynl_attr_type(attr)) {
+			case NLMSGERR_ATTR_OFFS:
+				ea->attr_offs = ynl_attr_get_u32(attr);
+				break;
+			case NLMSGERR_ATTR_MISS_TYPE:
+				ea->miss_type = ynl_attr_get_u32(attr);
+				break;
+			case NLMSGERR_ATTR_MISS_NEST:
+				ea->miss_nest = ynl_attr_get_u32(attr);
+				break;
+			case NLMSGERR_ATTR_MSG:
+				ea->str = ynl_attr_get_str(attr);
+				break;
+			}
+		}
+
+		return FOUND_EXTACK;
+	}
+
+	return ret;
+}
+
+static const struct {
+	struct nlmsghdr nlhdr;
+	struct ndmsg ndm;
+	struct nlattr ahdr;
+	__u32 val;
+} dump_neigh_bad = {
+	.nlhdr = {
+		.nlmsg_len	= sizeof(dump_neigh_bad),
+		.nlmsg_type	= RTM_GETNEIGH,
+		.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP,
+		.nlmsg_seq	= 1,
+	},
+	.ndm = {
+		.ndm_family	= 123,
+	},
+	.ahdr = {
+		.nla_len	= 4 + 4,
+		.nla_type	= NDA_FLAGS_EXT,
+	},
+	.val = -1, // should fail MASK validation
+};
+
+TEST(dump_extack)
+{
+	int netlink_sock;
+	int i, cnt, ret;
+	char buf[8192];
+	int one = 1;
+	ssize_t n;
+
+	netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+	ASSERT_GE(netlink_sock, 0);
+
+	n = setsockopt(netlink_sock, SOL_NETLINK, NETLINK_CAP_ACK,
+		       &one, sizeof(one));
+	ASSERT_EQ(n, 0);
+	n = setsockopt(netlink_sock, SOL_NETLINK, NETLINK_EXT_ACK,
+		       &one, sizeof(one));
+	ASSERT_EQ(n, 0);
+	n = setsockopt(netlink_sock, SOL_NETLINK, NETLINK_GET_STRICT_CHK,
+		       &one, sizeof(one));
+	ASSERT_EQ(n, 0);
+
+	/* Dump so many times we fill up the buffer */
+	cnt = 80;
+	for (i = 0; i < cnt; i++) {
+		n = send(netlink_sock, &dump_neigh_bad,
+			 sizeof(dump_neigh_bad), 0);
+		ASSERT_EQ(n, sizeof(dump_neigh_bad));
+	}
+
+	/* Read out the ENOBUFS */
+	n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
+	EXPECT_EQ(n, -1);
+	EXPECT_EQ(errno, ENOBUFS);
+
+	ret = NO_CTRL;
+	for (i = 0; i < cnt; i++) {
+		struct ext_ack ea = {};
+
+		n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
+		if (n < 0) {
+			ASSERT_GE(i, 10);
+			break;
+		}
+		ASSERT_GE(n, (ssize_t)sizeof(struct nlmsghdr));
+
+		ret = nl_get_extack(buf, n, &ea);
+		/* Once we fill the buffer we'll see one ENOBUFS followed
+		 * by a number of EBUSYs. Then the last recv() will finally
+		 * trigger and complete the dump.
+		 */
+		if (ret == FOUND_ERR && (ea.err == ENOBUFS || ea.err == EBUSY))
+			continue;
+		EXPECT_EQ(ret, FOUND_EXTACK);
+		EXPECT_EQ(ea.err, EINVAL);
+		EXPECT_EQ(ea.attr_offs,
+			  sizeof(struct nlmsghdr) + sizeof(struct ndmsg));
+	}
+	/* Make sure last message was a full DONE+extack */
+	EXPECT_EQ(ret, FOUND_EXTACK);
+}
+
+static const struct {
+	struct nlmsghdr nlhdr;
+	struct genlmsghdr genlhdr;
+	struct nlattr ahdr;
+	__u16 val;
+	__u16 pad;
+} dump_policies = {
+	.nlhdr = {
+		.nlmsg_len	= sizeof(dump_policies),
+		.nlmsg_type	= GENL_ID_CTRL,
+		.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK | NLM_F_DUMP,
+		.nlmsg_seq	= 1,
+	},
+	.genlhdr = {
+		.cmd		= CTRL_CMD_GETPOLICY,
+		.version	= 2,
+	},
+	.ahdr = {
+		.nla_len	= 6,
+		.nla_type	= CTRL_ATTR_FAMILY_ID,
+	},
+	.val = GENL_ID_CTRL,
+	.pad = 0,
+};
+
+// Sanity check for the test itself, make sure the dump doesn't fit in one msg
+TEST(test_sanity)
+{
+	int netlink_sock;
+	char buf[8192];
+	ssize_t n;
+
+	netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	ASSERT_GE(netlink_sock, 0);
+
+	n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
+	ASSERT_EQ(n, sizeof(dump_policies));
+
+	n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
+	ASSERT_GE(n, (ssize_t)sizeof(struct nlmsghdr));
+
+	n = recv(netlink_sock, buf, sizeof(buf), MSG_DONTWAIT);
+	ASSERT_GE(n, (ssize_t)sizeof(struct nlmsghdr));
+
+	close(netlink_sock);
+}
+
+TEST(close_in_progress)
+{
+	int netlink_sock;
+	ssize_t n;
+
+	netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	ASSERT_GE(netlink_sock, 0);
+
+	n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
+	ASSERT_EQ(n, sizeof(dump_policies));
+
+	close(netlink_sock);
+}
+
+TEST(close_with_ref)
+{
+	char cookie[NOTIFY_COOKIE_LEN] = {};
+	int netlink_sock, mq_fd;
+	struct sigevent sigev;
+	ssize_t n;
+
+	netlink_sock = socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC);
+	ASSERT_GE(netlink_sock, 0);
+
+	n = send(netlink_sock, &dump_policies, sizeof(dump_policies), 0);
+	ASSERT_EQ(n, sizeof(dump_policies));
+
+	mq_fd = syscall(__NR_mq_open, "sed", O_CREAT | O_WRONLY, 0600, 0);
+	ASSERT_GE(mq_fd, 0);
+
+	memset(&sigev, 0, sizeof(sigev));
+	sigev.sigev_notify		= SIGEV_THREAD;
+	sigev.sigev_value.sival_ptr	= cookie;
+	sigev.sigev_signo		= netlink_sock;
+
+	syscall(__NR_mq_notify, mq_fd, &sigev);
+
+	close(netlink_sock);
+
+	// give mqueue time to fire
+	usleep(100 * 1000);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/netns-name.sh b/tools/testing/selftests/net/netns-name.sh
new file mode 100755
index 000000000000..38871bdef67f
--- /dev/null
+++ b/tools/testing/selftests/net/netns-name.sh
@@ -0,0 +1,102 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+set -o pipefail
+
+DEV=dummy-dev0
+DEV2=dummy-dev1
+ALT_NAME=some-alt-name
+NSIM_ADDR=2025
+
+RET_CODE=0
+
+cleanup() {
+    cleanup_netdevsim $NSIM_ADDR
+    cleanup_ns $NS $test_ns
+}
+
+trap cleanup EXIT
+
+fail() {
+    echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2
+    RET_CODE=1
+}
+
+setup_ns NS test_ns
+
+#
+# Test basic move without a rename
+# Use netdevsim because it has extra asserts for notifiers.
+#
+
+nsim=$(create_netdevsim $NSIM_ADDR $NS)
+ip -netns $NS link set dev $nsim netns $test_ns ||
+    fail "Can't perform a netns move"
+ip -netns $test_ns link show dev $nsim >> /dev/null ||
+    fail "Device not found after move"
+cleanup_netdevsim $NSIM_ADDR
+
+#
+# Test move with a conflict
+#
+ip -netns $test_ns link add name $DEV type dummy
+ip -netns $NS link add name $DEV type dummy || fail
+ip -netns $NS link set dev $DEV netns $test_ns 2> /dev/null &&
+    fail "Performed a netns move with a name conflict"
+ip -netns $test_ns link show dev $DEV >> /dev/null || fail "Device not found after move"
+ip -netns $NS link del $DEV || fail
+ip -netns $test_ns link del $DEV || fail
+
+#
+# Test move with a conflict and rename
+#
+ip -netns $test_ns link add name $DEV type dummy
+ip -netns $NS link add name $DEV type dummy || fail
+ip -netns $NS link set dev $DEV netns $test_ns name $DEV2 ||
+    fail "Can't perform a netns move with rename"
+ip -netns $test_ns link del $DEV2 || fail
+ip -netns $test_ns link del $DEV || fail
+
+#
+# Test dup alt-name with netns move
+#
+ip -netns $test_ns link add name $DEV type dummy || fail
+ip -netns $test_ns link property add dev $DEV altname $ALT_NAME || fail
+ip -netns $NS link add name $DEV2 type dummy || fail
+ip -netns $NS link property add dev $DEV2 altname $ALT_NAME || fail
+
+ip -netns $NS link set dev $DEV2 netns $test_ns 2> /dev/null &&
+    fail "Moved with alt-name dup"
+
+ip -netns $test_ns link del $DEV || fail
+ip -netns $NS link del $DEV2 || fail
+
+#
+# Test creating alt-name in one net-ns and using in another
+#
+ip -netns $NS link add name $DEV type dummy || fail
+ip -netns $NS link property add dev $DEV altname $ALT_NAME || fail
+ip -netns $NS link set dev $DEV netns $test_ns || fail
+ip -netns $test_ns link show dev $ALT_NAME >> /dev/null || fail "Can't find alt-name after move"
+ip -netns $NS link show dev $ALT_NAME 2> /dev/null &&
+    fail "Can still find alt-name after move"
+ip -netns $test_ns link del $DEV || fail
+
+#
+# Test no conflict of the same name/ifindex in different netns
+#
+ip -netns $NS link add name $DEV index 100 type dummy || fail
+ip -netns $NS link add netns $test_ns name $DEV index 100 type dummy ||
+    fail "Can create in netns without moving"
+ip -netns $test_ns link show dev $DEV >> /dev/null || fail "Device not found"
+ip -netns $NS link del $DEV || fail
+ip -netns $test_ns link del $DEV || fail
+
+echo -ne "$(basename $0) \t\t\t\t"
+if [ $RET_CODE -eq 0 ]; then
+    echo "[  OK  ]"
+else
+    echo "[ FAIL ]"
+fi
+exit $RET_CODE
diff --git a/tools/testing/selftests/net/netns-sysctl.sh b/tools/testing/selftests/net/netns-sysctl.sh
new file mode 100755
index 000000000000..45c34a3b9aae
--- /dev/null
+++ b/tools/testing/selftests/net/netns-sysctl.sh
@@ -0,0 +1,40 @@
+#!/bin/bash -e
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test checks that the network buffer sysctls are present
+# in a network namespaces, and that they are readonly.
+
+source lib.sh
+
+cleanup() {
+    cleanup_ns $test_ns
+}
+
+trap cleanup EXIT
+
+fail() {
+	echo "ERROR: $*" >&2
+	exit 1
+}
+
+setup_ns test_ns
+
+for sc in {r,w}mem_{default,max}; do
+	# check that this is writable in a netns
+	[ -w "/proc/sys/net/core/$sc" ] ||
+		fail "$sc isn't writable in the init netns!"
+
+	# change the value in the host netns
+	sysctl -qw "net.core.$sc=300000" ||
+		fail "Can't write $sc in init netns!"
+
+	# check that the value is read from the init netns
+	[ "$(ip netns exec $test_ns sysctl -n "net.core.$sc")" -eq 300000 ] ||
+		fail "Value for $sc mismatch!"
+
+	# check that this isn't writable in a netns
+	ip netns exec $test_ns [ -w "/proc/sys/net/core/$sc" ] &&
+		fail "$sc is writable in a netns!"
+done
+
+echo 'Test passed OK'
diff --git a/tools/testing/selftests/net/nettest.c b/tools/testing/selftests/net/nettest.c
new file mode 100644
index 000000000000..1f5227f3d64d
--- /dev/null
+++ b/tools/testing/selftests/net/nettest.c
@@ -0,0 +1,2254 @@
+// SPDX-License-Identifier: GPL-2.0
+/* nettest - used for functional tests of networking APIs
+ *
+ * Copyright (c) 2013-2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+ */
+
+#define _GNU_SOURCE
+#include <features.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netdb.h>
+#include <fcntl.h>
+#include <libgen.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+#include <getopt.h>
+
+#include <linux/xfrm.h>
+#include <linux/ipsec.h>
+#include <linux/pfkeyv2.h>
+
+#ifndef IPV6_UNICAST_IF
+#define IPV6_UNICAST_IF         76
+#endif
+#ifndef IPV6_MULTICAST_IF
+#define IPV6_MULTICAST_IF       17
+#endif
+
+#define DEFAULT_PORT 12345
+
+#define NS_PREFIX "/run/netns/"
+
+#ifndef MAX
+#define MAX(a, b)  ((a) > (b) ? (a) : (b))
+#endif
+#ifndef MIN
+#define MIN(a, b)  ((a) < (b) ? (a) : (b))
+#endif
+
+struct sock_args {
+	/* local address */
+	const char *local_addr_str;
+	const char *client_local_addr_str;
+	union {
+		struct in_addr  in;
+		struct in6_addr in6;
+	} local_addr;
+
+	/* remote address */
+	const char *remote_addr_str;
+	union {
+		struct in_addr  in;
+		struct in6_addr in6;
+	} remote_addr;
+	int scope_id;  /* remote scope; v6 send only */
+
+	struct in_addr grp;     /* multicast group */
+
+	unsigned int has_local_ip:1,
+		     has_remote_ip:1,
+		     has_grp:1,
+		     has_expected_laddr:1,
+		     has_expected_raddr:1,
+		     bind_test_only:1,
+		     client_dontroute:1,
+		     server_dontroute:1;
+
+	unsigned short port;
+
+	int type;      /* DGRAM, STREAM, RAW */
+	int protocol;
+	int version;   /* AF_INET/AF_INET6 */
+
+	int use_setsockopt;
+	int use_freebind;
+	int use_cmsg;
+	uint8_t dsfield;
+	const char *dev;
+	const char *server_dev;
+	int ifindex;
+
+	const char *clientns;
+	const char *serverns;
+
+	const char *password;
+	const char *client_pw;
+	/* prefix for MD5 password */
+	const char *md5_prefix_str;
+	union {
+		struct sockaddr_in v4;
+		struct sockaddr_in6 v6;
+	} md5_prefix;
+	unsigned int prefix_len;
+	/* 0: default, -1: force off, +1: force on */
+	int bind_key_ifindex;
+
+	/* expected addresses and device index for connection */
+	const char *expected_dev;
+	const char *expected_server_dev;
+	int expected_ifindex;
+
+	/* local address */
+	const char *expected_laddr_str;
+	union {
+		struct in_addr  in;
+		struct in6_addr in6;
+	} expected_laddr;
+
+	/* remote address */
+	const char *expected_raddr_str;
+	union {
+		struct in_addr  in;
+		struct in6_addr in6;
+	} expected_raddr;
+
+	/* ESP in UDP encap test */
+	int use_xfrm;
+
+	/* use send() and connect() instead of sendto */
+	int datagram_connect;
+};
+
+static int server_mode;
+static unsigned int prog_timeout = 5;
+static unsigned int interactive;
+static int iter = 1;
+static char *msg = "Hello world!";
+static int msglen;
+static int quiet;
+static int try_broadcast = 1;
+
+static char *timestamp(char *timebuf, int buflen)
+{
+	time_t now;
+
+	now = time(NULL);
+	if (strftime(timebuf, buflen, "%T", localtime(&now)) == 0) {
+		memset(timebuf, 0, buflen);
+		strncpy(timebuf, "00:00:00", buflen-1);
+	}
+
+	return timebuf;
+}
+
+static void log_msg(const char *format, ...)
+{
+	char timebuf[64];
+	va_list args;
+
+	if (quiet)
+		return;
+
+	fprintf(stdout, "%s %s:",
+		timestamp(timebuf, sizeof(timebuf)),
+		server_mode ? "server" : "client");
+	va_start(args, format);
+	vfprintf(stdout, format, args);
+	va_end(args);
+
+	fflush(stdout);
+}
+
+static void log_error(const char *format, ...)
+{
+	char timebuf[64];
+	va_list args;
+
+	if (quiet)
+		return;
+
+	fprintf(stderr, "%s %s:",
+		timestamp(timebuf, sizeof(timebuf)),
+		server_mode ? "server" : "client");
+	va_start(args, format);
+	vfprintf(stderr, format, args);
+	va_end(args);
+
+	fflush(stderr);
+}
+
+static void log_err_errno(const char *fmt, ...)
+{
+	char timebuf[64];
+	va_list args;
+
+	if (quiet)
+		return;
+
+	fprintf(stderr, "%s %s: ",
+		timestamp(timebuf, sizeof(timebuf)),
+		server_mode ? "server" : "client");
+	va_start(args, fmt);
+	vfprintf(stderr, fmt, args);
+	va_end(args);
+
+	fprintf(stderr, ": %d: %s\n", errno, strerror(errno));
+	fflush(stderr);
+}
+
+static void log_address(const char *desc, struct sockaddr *sa)
+{
+	char addrstr[64];
+
+	if (quiet)
+		return;
+
+	if (sa->sa_family == AF_INET) {
+		struct sockaddr_in *s = (struct sockaddr_in *) sa;
+
+		log_msg("%s %s:%d\n",
+			desc,
+			inet_ntop(AF_INET, &s->sin_addr, addrstr,
+				  sizeof(addrstr)),
+			ntohs(s->sin_port));
+
+	} else if (sa->sa_family == AF_INET6) {
+		struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+
+		log_msg("%s [%s]:%d\n",
+			desc,
+			inet_ntop(AF_INET6, &s6->sin6_addr, addrstr,
+				  sizeof(addrstr)),
+			ntohs(s6->sin6_port));
+	}
+
+	fflush(stdout);
+}
+
+static int switch_ns(const char *ns)
+{
+	char path[PATH_MAX];
+	int fd, ret;
+
+	if (geteuid())
+		log_error("warning: likely need root to set netns %s!\n", ns);
+
+	snprintf(path, sizeof(path), "%s%s", NS_PREFIX, ns);
+	fd = open(path, 0);
+	if (fd < 0) {
+		log_err_errno("Failed to open netns path; can not switch netns");
+		return 1;
+	}
+
+	ret = setns(fd, CLONE_NEWNET);
+	close(fd);
+
+	return ret;
+}
+
+static int tcp_md5sig(int sd, void *addr, socklen_t alen, struct sock_args *args)
+{
+	int keylen = strlen(args->password);
+	struct tcp_md5sig md5sig = {};
+	int opt = TCP_MD5SIG;
+	int rc;
+
+	md5sig.tcpm_keylen = keylen;
+	memcpy(md5sig.tcpm_key, args->password, keylen);
+
+	if (args->prefix_len) {
+		opt = TCP_MD5SIG_EXT;
+		md5sig.tcpm_flags |= TCP_MD5SIG_FLAG_PREFIX;
+
+		md5sig.tcpm_prefixlen = args->prefix_len;
+		addr = &args->md5_prefix;
+	}
+	memcpy(&md5sig.tcpm_addr, addr, alen);
+
+	if ((args->ifindex && args->bind_key_ifindex >= 0) || args->bind_key_ifindex >= 1) {
+		opt = TCP_MD5SIG_EXT;
+		md5sig.tcpm_flags |= TCP_MD5SIG_FLAG_IFINDEX;
+
+		md5sig.tcpm_ifindex = args->ifindex;
+		log_msg("TCP_MD5SIG_FLAG_IFINDEX set tcpm_ifindex=%d\n", md5sig.tcpm_ifindex);
+	} else {
+		log_msg("TCP_MD5SIG_FLAG_IFINDEX off\n", md5sig.tcpm_ifindex);
+	}
+
+	rc = setsockopt(sd, IPPROTO_TCP, opt, &md5sig, sizeof(md5sig));
+	if (rc < 0) {
+		/* ENOENT is harmless. Returned when a password is cleared */
+		if (errno == ENOENT)
+			rc = 0;
+		else
+			log_err_errno("setsockopt(TCP_MD5SIG)");
+	}
+
+	return rc;
+}
+
+static int tcp_md5_remote(int sd, struct sock_args *args)
+{
+	struct sockaddr_in sin = {
+		.sin_family = AF_INET,
+	};
+	struct sockaddr_in6 sin6 = {
+		.sin6_family = AF_INET6,
+	};
+	void *addr;
+	int alen;
+
+	switch (args->version) {
+	case AF_INET:
+		sin.sin_port = htons(args->port);
+		sin.sin_addr = args->md5_prefix.v4.sin_addr;
+		addr = &sin;
+		alen = sizeof(sin);
+		break;
+	case AF_INET6:
+		sin6.sin6_port = htons(args->port);
+		sin6.sin6_addr = args->md5_prefix.v6.sin6_addr;
+		addr = &sin6;
+		alen = sizeof(sin6);
+		break;
+	default:
+		log_error("unknown address family\n");
+		exit(1);
+	}
+
+	if (tcp_md5sig(sd, addr, alen, args))
+		return -1;
+
+	return 0;
+}
+
+static int get_ifidx(const char *ifname)
+{
+	struct ifreq ifdata;
+	int sd, rc;
+
+	if (!ifname || *ifname == '\0')
+		return -1;
+
+	memset(&ifdata, 0, sizeof(ifdata));
+
+	strcpy(ifdata.ifr_name, ifname);
+
+	sd = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP);
+	if (sd < 0) {
+		log_err_errno("socket failed");
+		return -1;
+	}
+
+	rc = ioctl(sd, SIOCGIFINDEX, (char *)&ifdata);
+	close(sd);
+	if (rc != 0) {
+		log_err_errno("ioctl(SIOCGIFINDEX) failed");
+		return -1;
+	}
+
+	return ifdata.ifr_ifindex;
+}
+
+static int bind_to_device(int sd, const char *name)
+{
+	int rc;
+
+	rc = setsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, strlen(name)+1);
+	if (rc < 0)
+		log_err_errno("setsockopt(SO_BINDTODEVICE)");
+
+	return rc;
+}
+
+static int get_bind_to_device(int sd, char *name, size_t len)
+{
+	int rc;
+	socklen_t optlen = len;
+
+	name[0] = '\0';
+	rc = getsockopt(sd, SOL_SOCKET, SO_BINDTODEVICE, name, &optlen);
+	if (rc < 0)
+		log_err_errno("getsockopt(SO_BINDTODEVICE)");
+
+	return rc;
+}
+
+static int check_device(int sd, struct sock_args *args)
+{
+	int ifindex = 0;
+	char name[32];
+
+	if (get_bind_to_device(sd, name, sizeof(name)))
+		*name = '\0';
+	else
+		ifindex = get_ifidx(name);
+
+	log_msg("    bound to device %s/%d\n",
+		*name ? name : "<none>", ifindex);
+
+	if (!args->expected_ifindex)
+		return 0;
+
+	if (args->expected_ifindex != ifindex) {
+		log_error("Device index mismatch: expected %d have %d\n",
+			  args->expected_ifindex, ifindex);
+		return 1;
+	}
+
+	log_msg("Device index matches: expected %d have %d\n",
+		args->expected_ifindex, ifindex);
+
+	return 0;
+}
+
+static int set_pktinfo_v4(int sd)
+{
+	int one = 1;
+	int rc;
+
+	rc = setsockopt(sd, SOL_IP, IP_PKTINFO, &one, sizeof(one));
+	if (rc < 0 && rc != -ENOTSUP)
+		log_err_errno("setsockopt(IP_PKTINFO)");
+
+	return rc;
+}
+
+static int set_recvpktinfo_v6(int sd)
+{
+	int one = 1;
+	int rc;
+
+	rc = setsockopt(sd, SOL_IPV6, IPV6_RECVPKTINFO, &one, sizeof(one));
+	if (rc < 0 && rc != -ENOTSUP)
+		log_err_errno("setsockopt(IPV6_RECVPKTINFO)");
+
+	return rc;
+}
+
+static int set_recverr_v4(int sd)
+{
+	int one = 1;
+	int rc;
+
+	rc = setsockopt(sd, SOL_IP, IP_RECVERR, &one, sizeof(one));
+	if (rc < 0 && rc != -ENOTSUP)
+		log_err_errno("setsockopt(IP_RECVERR)");
+
+	return rc;
+}
+
+static int set_recverr_v6(int sd)
+{
+	int one = 1;
+	int rc;
+
+	rc = setsockopt(sd, SOL_IPV6, IPV6_RECVERR, &one, sizeof(one));
+	if (rc < 0 && rc != -ENOTSUP)
+		log_err_errno("setsockopt(IPV6_RECVERR)");
+
+	return rc;
+}
+
+static int set_unicast_if(int sd, int ifindex, int version)
+{
+	int opt = IP_UNICAST_IF;
+	int level = SOL_IP;
+	int rc;
+
+	ifindex = htonl(ifindex);
+
+	if (version == AF_INET6) {
+		opt = IPV6_UNICAST_IF;
+		level = SOL_IPV6;
+	}
+	rc = setsockopt(sd, level, opt, &ifindex, sizeof(ifindex));
+	if (rc < 0)
+		log_err_errno("setsockopt(IP_UNICAST_IF)");
+
+	return rc;
+}
+
+static int set_multicast_if(int sd, int ifindex)
+{
+	struct ip_mreqn mreq = { .imr_ifindex = ifindex };
+	int rc;
+
+	rc = setsockopt(sd, SOL_IP, IP_MULTICAST_IF, &mreq, sizeof(mreq));
+	if (rc < 0)
+		log_err_errno("setsockopt(IP_MULTICAST_IF)");
+
+	return rc;
+}
+
+static int set_membership(int sd, uint32_t grp, uint32_t addr, int ifindex)
+{
+	uint32_t if_addr = addr;
+	struct ip_mreqn mreq;
+	int rc;
+
+	if (addr == htonl(INADDR_ANY) && !ifindex) {
+		log_error("Either local address or device needs to be given for multicast membership\n");
+		return -1;
+	}
+
+	mreq.imr_multiaddr.s_addr = grp;
+	mreq.imr_address.s_addr = if_addr;
+	mreq.imr_ifindex = ifindex;
+
+	rc = setsockopt(sd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq));
+	if (rc < 0) {
+		log_err_errno("setsockopt(IP_ADD_MEMBERSHIP)");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int set_freebind(int sd, int version)
+{
+	unsigned int one = 1;
+	int rc = 0;
+
+	switch (version) {
+	case AF_INET:
+		if (setsockopt(sd, SOL_IP, IP_FREEBIND, &one, sizeof(one))) {
+			log_err_errno("setsockopt(IP_FREEBIND)");
+			rc = -1;
+		}
+		break;
+	case AF_INET6:
+		if (setsockopt(sd, SOL_IPV6, IPV6_FREEBIND, &one, sizeof(one))) {
+			log_err_errno("setsockopt(IPV6_FREEBIND)");
+			rc = -1;
+		}
+		break;
+	}
+
+	return rc;
+}
+
+static int set_broadcast(int sd)
+{
+	unsigned int one = 1;
+	int rc = 0;
+
+	if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST, &one, sizeof(one)) != 0) {
+		log_err_errno("setsockopt(SO_BROADCAST)");
+		rc = -1;
+	}
+
+	return rc;
+}
+
+static int set_reuseport(int sd)
+{
+	unsigned int one = 1;
+	int rc = 0;
+
+	if (setsockopt(sd, SOL_SOCKET, SO_REUSEPORT, &one, sizeof(one)) != 0) {
+		log_err_errno("setsockopt(SO_REUSEPORT)");
+		rc = -1;
+	}
+
+	return rc;
+}
+
+static int set_reuseaddr(int sd)
+{
+	unsigned int one = 1;
+	int rc = 0;
+
+	if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)) != 0) {
+		log_err_errno("setsockopt(SO_REUSEADDR)");
+		rc = -1;
+	}
+
+	return rc;
+}
+
+static int set_dsfield(int sd, int version, int dsfield)
+{
+	if (!dsfield)
+		return 0;
+
+	switch (version) {
+	case AF_INET:
+		if (setsockopt(sd, SOL_IP, IP_TOS, &dsfield,
+			       sizeof(dsfield)) < 0) {
+			log_err_errno("setsockopt(IP_TOS)");
+			return -1;
+		}
+		break;
+
+	case AF_INET6:
+		if (setsockopt(sd, SOL_IPV6, IPV6_TCLASS, &dsfield,
+			       sizeof(dsfield)) < 0) {
+			log_err_errno("setsockopt(IPV6_TCLASS)");
+			return -1;
+		}
+		break;
+
+	default:
+		log_error("Invalid address family\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int set_dontroute(int sd)
+{
+	unsigned int one = 1;
+
+	if (setsockopt(sd, SOL_SOCKET, SO_DONTROUTE, &one, sizeof(one)) < 0) {
+		log_err_errno("setsockopt(SO_DONTROUTE)");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int str_to_uint(const char *str, int min, int max, unsigned int *value)
+{
+	int number;
+	char *end;
+
+	errno = 0;
+	number = (unsigned int) strtoul(str, &end, 0);
+
+	/* entire string should be consumed by conversion
+	 * and value should be between min and max
+	 */
+	if (((*end == '\0') || (*end == '\n')) && (end != str) &&
+	    (errno != ERANGE) && (min <= number) && (number <= max)) {
+		*value = number;
+		return 0;
+	}
+
+	return -1;
+}
+
+static int resolve_devices(struct sock_args *args)
+{
+	if (args->dev) {
+		args->ifindex = get_ifidx(args->dev);
+		if (args->ifindex < 0) {
+			log_error("Invalid device name\n");
+			return 1;
+		}
+	}
+
+	if (args->expected_dev) {
+		unsigned int tmp;
+
+		if (str_to_uint(args->expected_dev, 0, INT_MAX, &tmp) == 0) {
+			args->expected_ifindex = (int)tmp;
+		} else {
+			args->expected_ifindex = get_ifidx(args->expected_dev);
+			if (args->expected_ifindex < 0) {
+				fprintf(stderr, "Invalid expected device\n");
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int expected_addr_match(struct sockaddr *sa, void *expected,
+			       const char *desc)
+{
+	char addrstr[64];
+	int rc = 0;
+
+	if (sa->sa_family == AF_INET) {
+		struct sockaddr_in *s = (struct sockaddr_in *) sa;
+		struct in_addr *exp_in = (struct in_addr *) expected;
+
+		if (s->sin_addr.s_addr != exp_in->s_addr) {
+			log_error("%s address does not match expected %s\n",
+				  desc,
+				  inet_ntop(AF_INET, exp_in,
+					    addrstr, sizeof(addrstr)));
+			rc = 1;
+		}
+	} else if (sa->sa_family == AF_INET6) {
+		struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+		struct in6_addr *exp_in = (struct in6_addr *) expected;
+
+		if (memcmp(&s6->sin6_addr, exp_in, sizeof(*exp_in))) {
+			log_error("%s address does not match expected %s\n",
+				  desc,
+				  inet_ntop(AF_INET6, exp_in,
+					    addrstr, sizeof(addrstr)));
+			rc = 1;
+		}
+	} else {
+		log_error("%s address does not match expected - unknown family\n",
+			  desc);
+		rc = 1;
+	}
+
+	if (!rc)
+		log_msg("%s address matches expected\n", desc);
+
+	return rc;
+}
+
+static int show_sockstat(int sd, struct sock_args *args)
+{
+	struct sockaddr_in6 local_addr, remote_addr;
+	socklen_t alen = sizeof(local_addr);
+	struct sockaddr *sa;
+	const char *desc;
+	int rc = 0;
+
+	desc = server_mode ? "server local:" : "client local:";
+	sa = (struct sockaddr *) &local_addr;
+	if (getsockname(sd, sa, &alen) == 0) {
+		log_address(desc, sa);
+
+		if (args->has_expected_laddr) {
+			rc = expected_addr_match(sa, &args->expected_laddr,
+						 "local");
+		}
+	} else {
+		log_err_errno("getsockname failed");
+	}
+
+	sa = (struct sockaddr *) &remote_addr;
+	desc = server_mode ? "server peer:" : "client peer:";
+	if (getpeername(sd, sa, &alen) == 0) {
+		log_address(desc, sa);
+
+		if (args->has_expected_raddr) {
+			rc |= expected_addr_match(sa, &args->expected_raddr,
+						 "remote");
+		}
+	} else {
+		log_err_errno("getpeername failed");
+	}
+
+	return rc;
+}
+
+enum addr_type {
+	ADDR_TYPE_LOCAL,
+	ADDR_TYPE_REMOTE,
+	ADDR_TYPE_MCAST,
+	ADDR_TYPE_EXPECTED_LOCAL,
+	ADDR_TYPE_EXPECTED_REMOTE,
+	ADDR_TYPE_MD5_PREFIX,
+};
+
+static int convert_addr(struct sock_args *args, const char *_str,
+			enum addr_type atype)
+{
+	int pfx_len_max = args->version == AF_INET6 ? 128 : 32;
+	int family = args->version;
+	char *str, *dev, *sep;
+	struct in6_addr *in6;
+	struct in_addr  *in;
+	const char *desc;
+	void *addr;
+	int rc = 0;
+
+	str = strdup(_str);
+	if (!str)
+		return -ENOMEM;
+
+	switch (atype) {
+	case ADDR_TYPE_LOCAL:
+		desc = "local";
+		addr = &args->local_addr;
+		break;
+	case ADDR_TYPE_REMOTE:
+		desc = "remote";
+		addr = &args->remote_addr;
+		break;
+	case ADDR_TYPE_MCAST:
+		desc = "mcast grp";
+		addr = &args->grp;
+		break;
+	case ADDR_TYPE_EXPECTED_LOCAL:
+		desc = "expected local";
+		addr = &args->expected_laddr;
+		break;
+	case ADDR_TYPE_EXPECTED_REMOTE:
+		desc = "expected remote";
+		addr = &args->expected_raddr;
+		break;
+	case ADDR_TYPE_MD5_PREFIX:
+		desc = "md5 prefix";
+		if (family == AF_INET) {
+			args->md5_prefix.v4.sin_family = AF_INET;
+			addr = &args->md5_prefix.v4.sin_addr;
+		} else if (family == AF_INET6) {
+			args->md5_prefix.v6.sin6_family = AF_INET6;
+			addr = &args->md5_prefix.v6.sin6_addr;
+		} else
+			return 1;
+
+		sep = strchr(str, '/');
+		if (sep) {
+			*sep = '\0';
+			sep++;
+			if (str_to_uint(sep, 1, pfx_len_max,
+					&args->prefix_len) != 0) {
+				fprintf(stderr, "Invalid prefix length\n");
+				return 1;
+			}
+		} else {
+			args->prefix_len = 0;
+		}
+		break;
+	default:
+		log_error("unknown address type\n");
+		exit(1);
+	}
+
+	switch (family) {
+	case AF_INET:
+		in  = (struct in_addr *) addr;
+		if (str) {
+			if (inet_pton(AF_INET, str, in) == 0) {
+				log_error("Invalid %s IP address\n", desc);
+				rc = -1;
+				goto out;
+			}
+		} else {
+			in->s_addr = htonl(INADDR_ANY);
+		}
+		break;
+
+	case AF_INET6:
+		dev = strchr(str, '%');
+		if (dev) {
+			*dev = '\0';
+			dev++;
+		}
+
+		in6 = (struct in6_addr *) addr;
+		if (str) {
+			if (inet_pton(AF_INET6, str, in6) == 0) {
+				log_error("Invalid %s IPv6 address\n", desc);
+				rc = -1;
+				goto out;
+			}
+		} else {
+			*in6 = in6addr_any;
+		}
+		if (dev) {
+			args->scope_id = get_ifidx(dev);
+			if (args->scope_id < 0) {
+				log_error("Invalid scope on %s IPv6 address\n",
+					  desc);
+				rc = -1;
+				goto out;
+			}
+		}
+		break;
+
+	default:
+		log_error("Invalid address family\n");
+	}
+
+out:
+	free(str);
+	return rc;
+}
+
+static int validate_addresses(struct sock_args *args)
+{
+	if (args->local_addr_str &&
+	    convert_addr(args, args->local_addr_str, ADDR_TYPE_LOCAL) < 0)
+		return 1;
+
+	if (args->remote_addr_str &&
+	    convert_addr(args, args->remote_addr_str, ADDR_TYPE_REMOTE) < 0)
+		return 1;
+
+	if (args->md5_prefix_str &&
+	    convert_addr(args, args->md5_prefix_str,
+			 ADDR_TYPE_MD5_PREFIX) < 0)
+		return 1;
+
+	if (args->expected_laddr_str &&
+	    convert_addr(args, args->expected_laddr_str,
+			 ADDR_TYPE_EXPECTED_LOCAL))
+		return 1;
+
+	if (args->expected_raddr_str &&
+	    convert_addr(args, args->expected_raddr_str,
+			 ADDR_TYPE_EXPECTED_REMOTE))
+		return 1;
+
+	return 0;
+}
+
+static int get_index_from_cmsg(struct msghdr *m)
+{
+	struct cmsghdr *cm;
+	int ifindex = 0;
+	char buf[64];
+
+	for (cm = (struct cmsghdr *)CMSG_FIRSTHDR(m);
+	     m->msg_controllen != 0 && cm;
+	     cm = (struct cmsghdr *)CMSG_NXTHDR(m, cm)) {
+
+		if (cm->cmsg_level == SOL_IP &&
+		    cm->cmsg_type == IP_PKTINFO) {
+			struct in_pktinfo *pi;
+
+			pi = (struct in_pktinfo *)(CMSG_DATA(cm));
+			inet_ntop(AF_INET, &pi->ipi_addr, buf, sizeof(buf));
+			ifindex = pi->ipi_ifindex;
+		} else if (cm->cmsg_level == SOL_IPV6 &&
+			   cm->cmsg_type == IPV6_PKTINFO) {
+			struct in6_pktinfo *pi6;
+
+			pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
+			inet_ntop(AF_INET6, &pi6->ipi6_addr, buf, sizeof(buf));
+			ifindex = pi6->ipi6_ifindex;
+		}
+	}
+
+	if (ifindex) {
+		log_msg("    pktinfo: ifindex %d dest addr %s\n",
+			ifindex, buf);
+	}
+	return ifindex;
+}
+
+static int send_msg_no_cmsg(int sd, void *addr, socklen_t alen)
+{
+	int err;
+
+again:
+	err = sendto(sd, msg, msglen, 0, addr, alen);
+	if (err < 0) {
+		if (errno == EACCES && try_broadcast) {
+			try_broadcast = 0;
+			if (!set_broadcast(sd))
+				goto again;
+			errno = EACCES;
+		}
+
+		log_err_errno("sendto failed");
+		return 1;
+	}
+
+	return 0;
+}
+
+static int send_msg_cmsg(int sd, void *addr, socklen_t alen,
+			 int ifindex, int version)
+{
+	unsigned char cmsgbuf[64];
+	struct iovec iov[2];
+	struct cmsghdr *cm;
+	struct msghdr m;
+	int err;
+
+	iov[0].iov_base = msg;
+	iov[0].iov_len = msglen;
+	m.msg_iov = iov;
+	m.msg_iovlen = 1;
+	m.msg_name = (caddr_t)addr;
+	m.msg_namelen = alen;
+
+	memset(cmsgbuf, 0, sizeof(cmsgbuf));
+	cm = (struct cmsghdr *)cmsgbuf;
+	m.msg_control = (caddr_t)cm;
+
+	if (version == AF_INET) {
+		struct in_pktinfo *pi;
+
+		cm->cmsg_level = SOL_IP;
+		cm->cmsg_type = IP_PKTINFO;
+		cm->cmsg_len = CMSG_LEN(sizeof(struct in_pktinfo));
+		pi = (struct in_pktinfo *)(CMSG_DATA(cm));
+		pi->ipi_ifindex = ifindex;
+
+		m.msg_controllen = cm->cmsg_len;
+
+	} else if (version == AF_INET6) {
+		struct in6_pktinfo *pi6;
+
+		cm->cmsg_level = SOL_IPV6;
+		cm->cmsg_type = IPV6_PKTINFO;
+		cm->cmsg_len = CMSG_LEN(sizeof(struct in6_pktinfo));
+
+		pi6 = (struct in6_pktinfo *)(CMSG_DATA(cm));
+		pi6->ipi6_ifindex = ifindex;
+
+		m.msg_controllen = cm->cmsg_len;
+	}
+
+again:
+	err = sendmsg(sd, &m, 0);
+	if (err < 0) {
+		if (errno == EACCES && try_broadcast) {
+			try_broadcast = 0;
+			if (!set_broadcast(sd))
+				goto again;
+			errno = EACCES;
+		}
+
+		log_err_errno("sendmsg failed");
+		return 1;
+	}
+
+	return 0;
+}
+
+
+static int send_msg(int sd, void *addr, socklen_t alen, struct sock_args *args)
+{
+	if (args->type == SOCK_STREAM) {
+		if (write(sd, msg, msglen) < 0) {
+			log_err_errno("write failed sending msg to peer");
+			return 1;
+		}
+	} else if (args->datagram_connect) {
+		if (send(sd, msg, msglen, 0) < 0) {
+			log_err_errno("send failed sending msg to peer");
+			return 1;
+		}
+	} else if (args->ifindex && args->use_cmsg) {
+		if (send_msg_cmsg(sd, addr, alen, args->ifindex, args->version))
+			return 1;
+	} else {
+		if (send_msg_no_cmsg(sd, addr, alen))
+			return 1;
+	}
+
+	log_msg("Sent message:\n");
+	log_msg("    %.24s%s\n", msg, msglen > 24 ? " ..." : "");
+
+	return 0;
+}
+
+static int socket_read_dgram(int sd, struct sock_args *args)
+{
+	unsigned char addr[sizeof(struct sockaddr_in6)];
+	struct sockaddr *sa = (struct sockaddr *) addr;
+	socklen_t alen = sizeof(addr);
+	struct iovec iov[2];
+	struct msghdr m = {
+		.msg_name = (caddr_t)addr,
+		.msg_namelen = alen,
+		.msg_iov = iov,
+		.msg_iovlen = 1,
+	};
+	unsigned char cmsgbuf[256];
+	struct cmsghdr *cm = (struct cmsghdr *)cmsgbuf;
+	char buf[16*1024];
+	int ifindex;
+	int len;
+
+	iov[0].iov_base = (caddr_t)buf;
+	iov[0].iov_len = sizeof(buf);
+
+	memset(cmsgbuf, 0, sizeof(cmsgbuf));
+	m.msg_control = (caddr_t)cm;
+	m.msg_controllen = sizeof(cmsgbuf);
+
+	len = recvmsg(sd, &m, 0);
+	if (len == 0) {
+		log_msg("peer closed connection.\n");
+		return 0;
+	} else if (len < 0) {
+		log_msg("failed to read message: %d: %s\n",
+			errno, strerror(errno));
+		return -1;
+	}
+
+	buf[len] = '\0';
+
+	log_address("Message from:", sa);
+	log_msg("    %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+	ifindex = get_index_from_cmsg(&m);
+	if (args->expected_ifindex) {
+		if (args->expected_ifindex != ifindex) {
+			log_error("Device index mismatch: expected %d have %d\n",
+				  args->expected_ifindex, ifindex);
+			return -1;
+		}
+		log_msg("Device index matches: expected %d have %d\n",
+			args->expected_ifindex, ifindex);
+	}
+
+	if (!interactive && server_mode) {
+		if (sa->sa_family == AF_INET6) {
+			struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+			struct in6_addr *in6 = &s6->sin6_addr;
+
+			if (IN6_IS_ADDR_V4MAPPED(in6)) {
+				const uint32_t *pa = (uint32_t *) &in6->s6_addr;
+				struct in_addr in4;
+				struct sockaddr_in *sin;
+
+				sin = (struct sockaddr_in *) addr;
+				pa += 3;
+				in4.s_addr = *pa;
+				sin->sin_addr = in4;
+				sin->sin_family = AF_INET;
+				if (send_msg_cmsg(sd, addr, alen,
+						  ifindex, AF_INET) < 0)
+					goto out_err;
+			}
+		}
+again:
+		iov[0].iov_len = len;
+
+		if (args->version == AF_INET6) {
+			struct sockaddr_in6 *s6 = (struct sockaddr_in6 *) sa;
+
+			if (args->dev) {
+				/* avoid PKTINFO conflicts with bindtodev */
+				if (sendto(sd, buf, len, 0,
+					   (void *) addr, alen) < 0)
+					goto out_err;
+			} else {
+				/* kernel is allowing scope_id to be set to VRF
+				 * index for LLA. for sends to global address
+				 * reset scope id
+				 */
+				s6->sin6_scope_id = ifindex;
+				if (sendmsg(sd, &m, 0) < 0)
+					goto out_err;
+			}
+		} else {
+			int err;
+
+			err = sendmsg(sd, &m, 0);
+			if (err < 0) {
+				if (errno == EACCES && try_broadcast) {
+					try_broadcast = 0;
+					if (!set_broadcast(sd))
+						goto again;
+					errno = EACCES;
+				}
+				goto out_err;
+			}
+		}
+		log_msg("Sent message:\n");
+		log_msg("    %.24s%s\n", buf, len > 24 ? " ..." : "");
+	}
+
+	return 1;
+out_err:
+	log_err_errno("failed to send msg to peer");
+	return -1;
+}
+
+static int socket_read_stream(int sd)
+{
+	char buf[1024];
+	int len;
+
+	len = read(sd, buf, sizeof(buf)-1);
+	if (len == 0) {
+		log_msg("client closed connection.\n");
+		return 0;
+	} else if (len < 0) {
+		log_msg("failed to read message\n");
+		return -1;
+	}
+
+	buf[len] = '\0';
+	log_msg("Incoming message:\n");
+	log_msg("    %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+	if (!interactive && server_mode) {
+		if (write(sd, buf, len) < 0) {
+			log_err_errno("failed to send buf");
+			return -1;
+		}
+		log_msg("Sent message:\n");
+		log_msg("     %.24s%s\n", buf, len > 24 ? " ..." : "");
+	}
+
+	return 1;
+}
+
+static int socket_read(int sd, struct sock_args *args)
+{
+	if (args->type == SOCK_STREAM)
+		return socket_read_stream(sd);
+
+	return socket_read_dgram(sd, args);
+}
+
+static int stdin_to_socket(int sd, int type, void *addr, socklen_t alen)
+{
+	char buf[1024];
+	int len;
+
+	if (fgets(buf, sizeof(buf), stdin) == NULL)
+		return 0;
+
+	len = strlen(buf);
+	if (type == SOCK_STREAM) {
+		if (write(sd, buf, len) < 0) {
+			log_err_errno("failed to send buf");
+			return -1;
+		}
+	} else {
+		int err;
+
+again:
+		err = sendto(sd, buf, len, 0, addr, alen);
+		if (err < 0) {
+			if (errno == EACCES && try_broadcast) {
+				try_broadcast = 0;
+				if (!set_broadcast(sd))
+					goto again;
+				errno = EACCES;
+			}
+			log_err_errno("failed to send msg to peer");
+			return -1;
+		}
+	}
+	log_msg("Sent message:\n");
+	log_msg("    %.24s%s\n", buf, len > 24 ? " ..." : "");
+
+	return 1;
+}
+
+static void set_recv_attr(int sd, int version)
+{
+	if (version == AF_INET6) {
+		set_recvpktinfo_v6(sd);
+		set_recverr_v6(sd);
+	} else {
+		set_pktinfo_v4(sd);
+		set_recverr_v4(sd);
+	}
+}
+
+static int msg_loop(int client, int sd, void *addr, socklen_t alen,
+		    struct sock_args *args)
+{
+	struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
+	fd_set rfds;
+	int nfds;
+	int rc;
+
+	if (args->type != SOCK_STREAM)
+		set_recv_attr(sd, args->version);
+
+	if (msg) {
+		msglen = strlen(msg);
+
+		/* client sends first message */
+		if (client) {
+			if (send_msg(sd, addr, alen, args))
+				return 1;
+		}
+		if (!interactive) {
+			ptval = &timeout;
+			if (!prog_timeout)
+				timeout.tv_sec = 5;
+		}
+	}
+
+	nfds = interactive ? MAX(fileno(stdin), sd) + 1 : sd + 1;
+	while (1) {
+		FD_ZERO(&rfds);
+		FD_SET(sd, &rfds);
+		if (interactive)
+			FD_SET(fileno(stdin), &rfds);
+
+		rc = select(nfds, &rfds, NULL, NULL, ptval);
+		if (rc < 0) {
+			if (errno == EINTR)
+				continue;
+
+			rc = 1;
+			log_err_errno("select failed");
+			break;
+		} else if (rc == 0) {
+			log_error("Timed out waiting for response\n");
+			rc = 2;
+			break;
+		}
+
+		if (FD_ISSET(sd, &rfds)) {
+			rc = socket_read(sd, args);
+			if (rc < 0) {
+				rc = 1;
+				break;
+			}
+			if (rc == 0)
+				break;
+		}
+
+		rc = 0;
+
+		if (FD_ISSET(fileno(stdin), &rfds)) {
+			if (stdin_to_socket(sd, args->type, addr, alen) <= 0)
+				break;
+		}
+
+		if (interactive)
+			continue;
+
+		if (iter != -1) {
+			--iter;
+			if (iter == 0)
+				break;
+		}
+
+		log_msg("Going into quiet mode\n");
+		quiet = 1;
+
+		if (client) {
+			if (send_msg(sd, addr, alen, args)) {
+				rc = 1;
+				break;
+			}
+		}
+	}
+
+	return rc;
+}
+
+static int msock_init(struct sock_args *args, int server)
+{
+	uint32_t if_addr = htonl(INADDR_ANY);
+	struct sockaddr_in laddr = {
+		.sin_family = AF_INET,
+		.sin_port = htons(args->port),
+	};
+	int one = 1;
+	int sd;
+
+	if (!server && args->has_local_ip)
+		if_addr = args->local_addr.in.s_addr;
+
+	sd = socket(PF_INET, SOCK_DGRAM, 0);
+	if (sd < 0) {
+		log_err_errno("socket");
+		return -1;
+	}
+
+	if (setsockopt(sd, SOL_SOCKET, SO_REUSEADDR,
+		       (char *)&one, sizeof(one)) < 0) {
+		log_err_errno("Setting SO_REUSEADDR error");
+		goto out_err;
+	}
+
+	if (setsockopt(sd, SOL_SOCKET, SO_BROADCAST,
+		       (char *)&one, sizeof(one)) < 0)
+		log_err_errno("Setting SO_BROADCAST error");
+
+	if (set_dsfield(sd, AF_INET, args->dsfield) != 0)
+		goto out_err;
+
+	if (server) {
+		if (args->server_dontroute && set_dontroute(sd) != 0)
+			goto out_err;
+	} else {
+		if (args->client_dontroute && set_dontroute(sd) != 0)
+			goto out_err;
+	}
+
+	if (args->dev && bind_to_device(sd, args->dev) != 0)
+		goto out_err;
+	else if (args->use_setsockopt &&
+		 set_multicast_if(sd, args->ifindex))
+		goto out_err;
+
+	laddr.sin_addr.s_addr = if_addr;
+
+	if (bind(sd, (struct sockaddr *) &laddr, sizeof(laddr)) < 0) {
+		log_err_errno("bind failed");
+		goto out_err;
+	}
+
+	if (server &&
+	    set_membership(sd, args->grp.s_addr,
+			   args->local_addr.in.s_addr, args->ifindex))
+		goto out_err;
+
+	return sd;
+out_err:
+	close(sd);
+	return -1;
+}
+
+static int msock_server(struct sock_args *args)
+{
+	return msock_init(args, 1);
+}
+
+static int msock_client(struct sock_args *args)
+{
+	return msock_init(args, 0);
+}
+
+static int bind_socket(int sd, struct sock_args *args)
+{
+	struct sockaddr_in serv_addr = {
+		.sin_family = AF_INET,
+	};
+	struct sockaddr_in6 serv6_addr = {
+		.sin6_family = AF_INET6,
+	};
+	void *addr;
+	socklen_t alen;
+
+	if (!args->has_local_ip && args->type == SOCK_RAW)
+		return 0;
+
+	switch (args->version) {
+	case AF_INET:
+		serv_addr.sin_port = htons(args->port);
+		serv_addr.sin_addr = args->local_addr.in;
+		addr = &serv_addr;
+		alen = sizeof(serv_addr);
+		break;
+
+	case AF_INET6:
+		serv6_addr.sin6_port = htons(args->port);
+		serv6_addr.sin6_addr = args->local_addr.in6;
+		addr = &serv6_addr;
+		alen = sizeof(serv6_addr);
+		break;
+
+	default:
+		log_error("Invalid address family\n");
+		return -1;
+	}
+
+	if (bind(sd, addr, alen) < 0) {
+		log_err_errno("error binding socket");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int config_xfrm_policy(int sd, struct sock_args *args)
+{
+	struct xfrm_userpolicy_info policy = {};
+	int type = UDP_ENCAP_ESPINUDP;
+	int xfrm_af = IP_XFRM_POLICY;
+	int level = SOL_IP;
+
+	if (args->type != SOCK_DGRAM) {
+		log_error("Invalid socket type. Only DGRAM could be used for XFRM\n");
+		return 1;
+	}
+
+	policy.action = XFRM_POLICY_ALLOW;
+	policy.sel.family = args->version;
+	if (args->version == AF_INET6) {
+		xfrm_af = IPV6_XFRM_POLICY;
+		level = SOL_IPV6;
+	}
+
+	policy.dir = XFRM_POLICY_OUT;
+	if (setsockopt(sd, level, xfrm_af, &policy, sizeof(policy)) < 0)
+		return 1;
+
+	policy.dir = XFRM_POLICY_IN;
+	if (setsockopt(sd, level, xfrm_af, &policy, sizeof(policy)) < 0)
+		return 1;
+
+	if (setsockopt(sd, IPPROTO_UDP, UDP_ENCAP, &type, sizeof(type)) < 0) {
+		log_err_errno("Failed to set xfrm encap");
+		return 1;
+	}
+
+	return 0;
+}
+
+static int lsock_init(struct sock_args *args)
+{
+	long flags;
+	int sd;
+
+	sd = socket(args->version, args->type, args->protocol);
+	if (sd < 0) {
+		log_err_errno("Error opening socket");
+		return -1;
+	}
+
+	if (set_reuseaddr(sd) != 0)
+		goto err;
+
+	if (set_reuseport(sd) != 0)
+		goto err;
+
+	if (set_dsfield(sd, args->version, args->dsfield) != 0)
+		goto err;
+
+	if (args->server_dontroute && set_dontroute(sd) != 0)
+		goto err;
+
+	if (args->dev && bind_to_device(sd, args->dev) != 0)
+		goto err;
+	else if (args->use_setsockopt &&
+		 set_unicast_if(sd, args->ifindex, args->version))
+		goto err;
+
+	if (args->use_freebind && set_freebind(sd, args->version))
+		goto err;
+
+	if (bind_socket(sd, args))
+		goto err;
+
+	if (args->bind_test_only)
+		goto out;
+
+	if (args->type == SOCK_STREAM && listen(sd, 1) < 0) {
+		log_err_errno("listen failed");
+		goto err;
+	}
+
+	flags = fcntl(sd, F_GETFL);
+	if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
+		log_err_errno("Failed to set non-blocking option");
+		goto err;
+	}
+
+	if (fcntl(sd, F_SETFD, FD_CLOEXEC) < 0)
+		log_err_errno("Failed to set close-on-exec flag");
+
+	if (args->use_xfrm && config_xfrm_policy(sd, args)) {
+		log_err_errno("Failed to set xfrm policy");
+		goto err;
+	}
+
+out:
+	return sd;
+
+err:
+	close(sd);
+	return -1;
+}
+
+static void ipc_write(int fd, int message)
+{
+	/* Not in both_mode, so there's no process to signal */
+	if (fd < 0)
+		return;
+
+	if (write(fd, &message, sizeof(message)) < 0)
+		log_err_errno("Failed to send client status");
+}
+
+static int do_server(struct sock_args *args, int ipc_fd)
+{
+	/* ipc_fd = -1 if no parent process to signal */
+	struct timeval timeout = { .tv_sec = prog_timeout }, *ptval = NULL;
+	unsigned char addr[sizeof(struct sockaddr_in6)] = {};
+	socklen_t alen = sizeof(addr);
+	int lsd, csd = -1;
+
+	fd_set rfds;
+	int rc;
+
+	if (args->serverns) {
+		if (switch_ns(args->serverns)) {
+			log_error("Could not set server netns to %s\n",
+				  args->serverns);
+			goto err_exit;
+		}
+		log_msg("Switched server netns\n");
+	}
+
+	args->dev = args->server_dev;
+	args->expected_dev = args->expected_server_dev;
+	if (resolve_devices(args) || validate_addresses(args))
+		goto err_exit;
+
+	if (prog_timeout)
+		ptval = &timeout;
+
+	if (args->has_grp)
+		lsd = msock_server(args);
+	else
+		lsd = lsock_init(args);
+
+	if (lsd < 0)
+		goto err_exit;
+
+	if (args->bind_test_only) {
+		close(lsd);
+		ipc_write(ipc_fd, 1);
+		return 0;
+	}
+
+	if (args->type != SOCK_STREAM) {
+		ipc_write(ipc_fd, 1);
+		rc = msg_loop(0, lsd, (void *) addr, alen, args);
+		close(lsd);
+		return rc;
+	}
+
+	if (args->password && tcp_md5_remote(lsd, args)) {
+		close(lsd);
+		goto err_exit;
+	}
+
+	ipc_write(ipc_fd, 1);
+	while (1) {
+		log_msg("waiting for client connection.\n");
+		FD_ZERO(&rfds);
+		FD_SET(lsd, &rfds);
+
+		rc = select(lsd+1, &rfds, NULL, NULL, ptval);
+		if (rc == 0) {
+			rc = 2;
+			break;
+		}
+
+		if (rc < 0) {
+			if (errno == EINTR)
+				continue;
+
+			log_err_errno("select failed");
+			break;
+		}
+
+		if (FD_ISSET(lsd, &rfds)) {
+
+			csd = accept(lsd, (void *) addr, &alen);
+			if (csd < 0) {
+				log_err_errno("accept failed");
+				break;
+			}
+
+			rc = show_sockstat(csd, args);
+			if (rc)
+				break;
+
+			rc = check_device(csd, args);
+			if (rc)
+				break;
+		}
+
+		rc = msg_loop(0, csd, (void *) addr, alen, args);
+		close(csd);
+
+		if (!interactive)
+			break;
+	}
+
+	close(lsd);
+
+	return rc;
+err_exit:
+	ipc_write(ipc_fd, 0);
+	return 1;
+}
+
+static int wait_for_connect(int sd)
+{
+	struct timeval _tv = { .tv_sec = prog_timeout }, *tv = NULL;
+	fd_set wfd;
+	int val = 0, sz = sizeof(val);
+	int rc;
+
+	FD_ZERO(&wfd);
+	FD_SET(sd, &wfd);
+
+	if (prog_timeout)
+		tv = &_tv;
+
+	rc = select(FD_SETSIZE, NULL, &wfd, NULL, tv);
+	if (rc == 0) {
+		log_error("connect timed out\n");
+		return -2;
+	} else if (rc < 0) {
+		log_err_errno("select failed");
+		return -3;
+	}
+
+	if (getsockopt(sd, SOL_SOCKET, SO_ERROR, &val, (socklen_t *)&sz) < 0) {
+		log_err_errno("getsockopt(SO_ERROR) failed");
+		return -4;
+	}
+
+	if (val != 0) {
+		log_error("connect failed: %d: %s\n", val, strerror(val));
+		return -1;
+	}
+
+	return 0;
+}
+
+static int connectsock(void *addr, socklen_t alen, struct sock_args *args)
+{
+	int sd, rc = -1;
+	long flags;
+
+	sd = socket(args->version, args->type, args->protocol);
+	if (sd < 0) {
+		log_err_errno("Failed to create socket");
+		return -1;
+	}
+
+	flags = fcntl(sd, F_GETFL);
+	if ((flags < 0) || (fcntl(sd, F_SETFL, flags|O_NONBLOCK) < 0)) {
+		log_err_errno("Failed to set non-blocking option");
+		goto err;
+	}
+
+	if (set_reuseport(sd) != 0)
+		goto err;
+
+	if (set_dsfield(sd, args->version, args->dsfield) != 0)
+		goto err;
+
+	if (args->client_dontroute && set_dontroute(sd) != 0)
+		goto err;
+
+	if (args->dev && bind_to_device(sd, args->dev) != 0)
+		goto err;
+	else if (args->use_setsockopt &&
+		 set_unicast_if(sd, args->ifindex, args->version))
+		goto err;
+
+	if (args->has_local_ip && bind_socket(sd, args))
+		goto err;
+
+	if (args->type != SOCK_STREAM && !args->datagram_connect)
+		goto out;
+
+	if (args->password && tcp_md5sig(sd, addr, alen, args))
+		goto err;
+
+	if (args->bind_test_only)
+		goto out;
+
+	if (connect(sd, addr, alen) < 0) {
+		if (errno != EINPROGRESS) {
+			log_err_errno("Failed to connect to remote host");
+			rc = -1;
+			goto err;
+		}
+		rc = wait_for_connect(sd);
+		if (rc < 0)
+			goto err;
+	}
+out:
+	return sd;
+
+err:
+	close(sd);
+	return rc;
+}
+
+static int do_client(struct sock_args *args)
+{
+	struct sockaddr_in sin = {
+		.sin_family = AF_INET,
+	};
+	struct sockaddr_in6 sin6 = {
+		.sin6_family = AF_INET6,
+	};
+	void *addr;
+	int alen;
+	int rc = 0;
+	int sd;
+
+	if (!args->has_remote_ip && !args->has_grp) {
+		fprintf(stderr, "remote IP or multicast group not given\n");
+		return 1;
+	}
+
+	if (args->clientns) {
+		if (switch_ns(args->clientns)) {
+			log_error("Could not set client netns to %s\n",
+				  args->clientns);
+			return 1;
+		}
+		log_msg("Switched client netns\n");
+	}
+
+	args->local_addr_str = args->client_local_addr_str;
+	if (resolve_devices(args) || validate_addresses(args))
+		return 1;
+
+	if ((args->use_setsockopt || args->use_cmsg) && !args->ifindex) {
+		fprintf(stderr, "Device binding not specified\n");
+		return 1;
+	}
+	if (args->use_setsockopt || args->use_cmsg)
+		args->dev = NULL;
+
+	switch (args->version) {
+	case AF_INET:
+		sin.sin_port = htons(args->port);
+		if (args->has_grp)
+			sin.sin_addr = args->grp;
+		else
+			sin.sin_addr = args->remote_addr.in;
+		addr = &sin;
+		alen = sizeof(sin);
+		break;
+	case AF_INET6:
+		sin6.sin6_port = htons(args->port);
+		sin6.sin6_addr = args->remote_addr.in6;
+		sin6.sin6_scope_id = args->scope_id;
+		addr = &sin6;
+		alen = sizeof(sin6);
+		break;
+	}
+
+	args->password = args->client_pw;
+
+	if (args->has_grp)
+		sd = msock_client(args);
+	else
+		sd = connectsock(addr, alen, args);
+
+	if (sd < 0)
+		return -sd;
+
+	if (args->bind_test_only)
+		goto out;
+
+	if (args->type == SOCK_STREAM) {
+		rc = show_sockstat(sd, args);
+		if (rc != 0)
+			goto out;
+	}
+
+	rc = msg_loop(1, sd, addr, alen, args);
+
+out:
+	close(sd);
+
+	return rc;
+}
+
+static char *random_msg(int len)
+{
+	int i, n = 0, olen = len + 1;
+	char *m;
+
+	if (len <= 0)
+		return NULL;
+
+	m = malloc(olen);
+	if (!m)
+		return NULL;
+
+	while (len > 26) {
+		i = snprintf(m + n, olen - n, "%.26s",
+			     "abcdefghijklmnopqrstuvwxyz");
+		n += i;
+		len -= i;
+	}
+
+	snprintf(m + n, olen - n, "%.*s", len,
+	     "abcdefghijklmnopqrstuvwxyz");
+	return m;
+}
+
+static int ipc_child(int fd, struct sock_args *args)
+{
+	char *outbuf, *errbuf;
+	int rc = 1;
+
+	outbuf = malloc(4096);
+	errbuf = malloc(4096);
+	if (!outbuf || !errbuf) {
+		fprintf(stderr, "server: Failed to allocate buffers for stdout and stderr\n");
+		goto out;
+	}
+
+	setbuffer(stdout, outbuf, 4096);
+	setbuffer(stderr, errbuf, 4096);
+
+	server_mode = 1; /* to tell log_msg in case we are in both_mode */
+
+	/* when running in both mode, address validation applies
+	 * solely to client side
+	 */
+	args->has_expected_laddr = 0;
+	args->has_expected_raddr = 0;
+
+	rc = do_server(args, fd);
+
+out:
+	free(outbuf);
+	free(errbuf);
+
+	return rc;
+}
+
+static int ipc_parent(int cpid, int fd, struct sock_args *args)
+{
+	int client_status;
+	int status;
+	int buf;
+
+	/* do the client-side function here in the parent process,
+	 * waiting to be told when to continue
+	 */
+	if (read(fd, &buf, sizeof(buf)) <= 0) {
+		log_err_errno("Failed to read IPC status from pipe");
+		return 1;
+	}
+	if (!buf) {
+		log_error("Server failed; can not continue\n");
+		return 1;
+	}
+	log_msg("Server is ready\n");
+
+	client_status = do_client(args);
+	log_msg("parent is done!\n");
+
+	if (kill(cpid, 0) == 0)
+		kill(cpid, SIGKILL);
+
+	wait(&status);
+	return client_status;
+}
+
+#define GETOPT_STR  "sr:l:c:Q:p:t:g:P:DRn:M:X:m:d:I:BN:O:SUCi6xL:0:1:2:3:Fbqf"
+#define OPT_FORCE_BIND_KEY_IFINDEX 1001
+#define OPT_NO_BIND_KEY_IFINDEX 1002
+#define OPT_CLIENT_DONTROUTE 1003
+#define OPT_SERVER_DONTROUTE 1004
+
+static struct option long_opts[] = {
+	{"force-bind-key-ifindex", 0, 0, OPT_FORCE_BIND_KEY_IFINDEX},
+	{"no-bind-key-ifindex", 0, 0, OPT_NO_BIND_KEY_IFINDEX},
+	{"client-dontroute", 0, 0, OPT_CLIENT_DONTROUTE},
+	{"server-dontroute", 0, 0, OPT_SERVER_DONTROUTE},
+	{0, 0, 0, 0}
+};
+
+static void print_usage(char *prog)
+{
+	printf(
+	"usage: %s OPTS\n"
+	"Required:\n"
+	"    -r addr       remote address to connect to (client mode only)\n"
+	"    -p port       port to connect to (client mode)/listen on (server mode)\n"
+	"                  (default: %d)\n"
+	"    -s            server mode (default: client mode)\n"
+	"    -t            timeout seconds (default: none)\n"
+	"\n"
+	"Optional:\n"
+	"    -B            do both client and server via fork and IPC\n"
+	"    -N ns         set client to network namespace ns (requires root)\n"
+	"    -O ns         set server to network namespace ns (requires root)\n"
+	"    -F            Restart server loop\n"
+	"    -6            IPv6 (default is IPv4)\n"
+	"    -P proto      protocol for socket: icmp, ospf (default: none)\n"
+	"    -D|R          datagram (D) / raw (R) socket (default stream)\n"
+	"    -l addr       local address to bind to in server mode\n"
+	"    -c addr       local address to bind to in client mode\n"
+	"    -Q dsfield    DS Field value of the socket (the IP_TOS or\n"
+	"                  IPV6_TCLASS socket option)\n"
+	"    -x            configure XFRM policy on socket\n"
+	"\n"
+	"    -d dev        bind socket to given device name\n"
+	"    -I dev        bind socket to given device name - server mode\n"
+	"    -S            use setsockopt (IP_UNICAST_IF or IP_MULTICAST_IF)\n"
+	"                  to set device binding\n"
+	"    -U            Use connect() and send() for datagram sockets\n"
+	"    -f            bind socket with the IP[V6]_FREEBIND option\n"
+	"    -C            use cmsg and IP_PKTINFO to specify device binding\n"
+	"\n"
+	"    -L len        send random message of given length\n"
+	"    -n num        number of times to send message\n"
+	"\n"
+	"    -M password   use MD5 sum protection\n"
+	"    -X password   MD5 password for client mode\n"
+	"    -m prefix/len prefix and length to use for MD5 key\n"
+	"    --no-bind-key-ifindex: Force TCP_MD5SIG_FLAG_IFINDEX off\n"
+	"    --force-bind-key-ifindex: Force TCP_MD5SIG_FLAG_IFINDEX on\n"
+	"        (default: only if -I is passed)\n"
+	"    --client-dontroute: don't use gateways for client socket: send\n"
+	"                        packets only if destination is on link (see\n"
+	"                        SO_DONTROUTE in socket(7))\n"
+	"    --server-dontroute: don't use gateways for server socket: send\n"
+	"                        packets only if destination is on link (see\n"
+	"                        SO_DONTROUTE in socket(7))\n"
+	"\n"
+	"    -g grp        multicast group (e.g., 239.1.1.1)\n"
+	"    -i            interactive mode (default is echo and terminate)\n"
+	"\n"
+	"    -0 addr       Expected local address\n"
+	"    -1 addr       Expected remote address\n"
+	"    -2 dev        Expected device name (or index) to receive packet\n"
+	"    -3 dev        Expected device name (or index) to receive packets - server mode\n"
+	"\n"
+	"    -b            Bind test only.\n"
+	"    -q            Be quiet. Run test without printing anything.\n"
+	, prog, DEFAULT_PORT);
+}
+
+int main(int argc, char *argv[])
+{
+	struct sock_args args = {
+		.version = AF_INET,
+		.type    = SOCK_STREAM,
+		.port    = DEFAULT_PORT,
+	};
+	struct protoent *pe;
+	int both_mode = 0;
+	unsigned int tmp;
+	int forever = 0;
+	int fd[2];
+	int cpid;
+
+	/* process inputs */
+	extern char *optarg;
+	int rc = 0;
+
+	/*
+	 * process input args
+	 */
+
+	while ((rc = getopt_long(argc, argv, GETOPT_STR, long_opts, NULL)) != -1) {
+		switch (rc) {
+		case 'B':
+			both_mode = 1;
+			break;
+		case 's':
+			server_mode = 1;
+			break;
+		case 'F':
+			forever = 1;
+			break;
+		case 'l':
+			args.has_local_ip = 1;
+			args.local_addr_str = optarg;
+			break;
+		case 'r':
+			args.has_remote_ip = 1;
+			args.remote_addr_str = optarg;
+			break;
+		case 'c':
+			args.has_local_ip = 1;
+			args.client_local_addr_str = optarg;
+			break;
+		case 'Q':
+			if (str_to_uint(optarg, 0, 255, &tmp) != 0) {
+				fprintf(stderr, "Invalid DS Field\n");
+				return 1;
+			}
+			args.dsfield = tmp;
+			break;
+		case 'p':
+			if (str_to_uint(optarg, 1, 65535, &tmp) != 0) {
+				fprintf(stderr, "Invalid port\n");
+				return 1;
+			}
+			args.port = (unsigned short) tmp;
+			break;
+		case 't':
+			if (str_to_uint(optarg, 0, INT_MAX,
+					&prog_timeout) != 0) {
+				fprintf(stderr, "Invalid timeout\n");
+				return 1;
+			}
+			break;
+		case 'D':
+			args.type = SOCK_DGRAM;
+			break;
+		case 'R':
+			args.type = SOCK_RAW;
+			args.port = 0;
+			if (!args.protocol)
+				args.protocol = IPPROTO_RAW;
+			break;
+		case 'P':
+			pe = getprotobyname(optarg);
+			if (pe) {
+				args.protocol = pe->p_proto;
+			} else {
+				if (str_to_uint(optarg, 0, 0xffff, &tmp) != 0) {
+					fprintf(stderr, "Invalid protocol\n");
+					return 1;
+				}
+				args.protocol = tmp;
+			}
+			break;
+		case 'n':
+			iter = atoi(optarg);
+			break;
+		case 'N':
+			args.clientns = optarg;
+			break;
+		case 'O':
+			args.serverns = optarg;
+			break;
+		case 'L':
+			msg = random_msg(atoi(optarg));
+			break;
+		case 'M':
+			args.password = optarg;
+			break;
+		case OPT_FORCE_BIND_KEY_IFINDEX:
+			args.bind_key_ifindex = 1;
+			break;
+		case OPT_NO_BIND_KEY_IFINDEX:
+			args.bind_key_ifindex = -1;
+			break;
+		case OPT_CLIENT_DONTROUTE:
+			args.client_dontroute = 1;
+			break;
+		case OPT_SERVER_DONTROUTE:
+			args.server_dontroute = 1;
+			break;
+		case 'X':
+			args.client_pw = optarg;
+			break;
+		case 'm':
+			args.md5_prefix_str = optarg;
+			break;
+		case 'S':
+			args.use_setsockopt = 1;
+			break;
+		case 'f':
+			args.use_freebind = 1;
+			break;
+		case 'C':
+			args.use_cmsg = 1;
+			break;
+		case 'd':
+			args.dev = optarg;
+			break;
+		case 'I':
+			args.server_dev = optarg;
+			break;
+		case 'i':
+			interactive = 1;
+			break;
+		case 'g':
+			args.has_grp = 1;
+			if (convert_addr(&args, optarg, ADDR_TYPE_MCAST) < 0)
+				return 1;
+			args.type = SOCK_DGRAM;
+			break;
+		case '6':
+			args.version = AF_INET6;
+			break;
+		case 'b':
+			args.bind_test_only = 1;
+			break;
+		case '0':
+			args.has_expected_laddr = 1;
+			args.expected_laddr_str = optarg;
+			break;
+		case '1':
+			args.has_expected_raddr = 1;
+			args.expected_raddr_str = optarg;
+			break;
+		case '2':
+			args.expected_dev = optarg;
+			break;
+		case '3':
+			args.expected_server_dev = optarg;
+			break;
+		case 'q':
+			quiet = 1;
+			break;
+		case 'x':
+			args.use_xfrm = 1;
+			break;
+		case 'U':
+			args.datagram_connect = 1;
+			break;
+		default:
+			print_usage(argv[0]);
+			return 1;
+		}
+	}
+
+	if (args.password &&
+	    ((!args.has_remote_ip && !args.md5_prefix_str) ||
+	      args.type != SOCK_STREAM)) {
+		log_error("MD5 passwords apply to TCP only and require a remote ip for the password\n");
+		return 1;
+	}
+
+	if (args.md5_prefix_str && !args.password) {
+		log_error("Prefix range for MD5 protection specified without a password\n");
+		return 1;
+	}
+
+	if (iter == 0) {
+		fprintf(stderr, "Invalid number of messages to send\n");
+		return 1;
+	}
+
+	if (args.type == SOCK_STREAM && !args.protocol)
+		args.protocol = IPPROTO_TCP;
+	if (args.type == SOCK_DGRAM && !args.protocol)
+		args.protocol = IPPROTO_UDP;
+
+	if ((args.type == SOCK_STREAM || args.type == SOCK_DGRAM) &&
+	     args.port == 0) {
+		fprintf(stderr, "Invalid port number\n");
+		return 1;
+	}
+
+	if ((both_mode || !server_mode) && !args.has_grp &&
+	    !args.has_remote_ip && !args.has_local_ip) {
+		fprintf(stderr,
+			"Local (server mode) or remote IP (client IP) required\n");
+		return 1;
+	}
+
+	if (interactive) {
+		prog_timeout = 0;
+		msg = NULL;
+	}
+
+	if (both_mode) {
+		if (pipe(fd) < 0) {
+			perror("pipe");
+			exit(1);
+		}
+
+		cpid = fork();
+		if (cpid < 0) {
+			perror("fork");
+			exit(1);
+		}
+		if (cpid)
+			return ipc_parent(cpid, fd[0], &args);
+
+		return ipc_child(fd[1], &args);
+	}
+
+	if (server_mode) {
+		do {
+			rc = do_server(&args, -1);
+		} while (forever);
+
+		return rc;
+	}
+	return do_client(&args);
+}
diff --git a/tools/testing/selftests/net/nl_netdev.py b/tools/testing/selftests/net/nl_netdev.py
new file mode 100755
index 000000000000..5c66421ab8aa
--- /dev/null
+++ b/tools/testing/selftests/net/nl_netdev.py
@@ -0,0 +1,254 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import time
+from os import system
+from lib.py import ksft_run, ksft_exit, ksft_pr
+from lib.py import ksft_eq, ksft_ge, ksft_ne, ksft_busy_wait
+from lib.py import NetdevFamily, NetdevSimDev, ip
+
+
+def empty_check(nf) -> None:
+    devs = nf.dev_get({}, dump=True)
+    ksft_ge(len(devs), 1)
+
+
+def lo_check(nf) -> None:
+    lo_info = nf.dev_get({"ifindex": 1})
+    ksft_eq(len(lo_info['xdp-features']), 0)
+    ksft_eq(len(lo_info['xdp-rx-metadata-features']), 0)
+
+
+def napi_list_check(nf) -> None:
+    with NetdevSimDev(queue_count=100) as nsimdev:
+        nsim = nsimdev.nsims[0]
+
+        ip(f"link set dev {nsim.ifname} up")
+
+        napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
+        ksft_eq(len(napis), 100)
+
+        for q in [50, 0, 99]:
+            for i in range(4):
+                nsim.dfs_write("queue_reset", f"{q} {i}")
+                napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
+                ksft_eq(len(napis), 100,
+                        comment=f"queue count after reset queue {q} mode {i}")
+
+def napi_set_threaded(nf) -> None:
+    """
+    Test that verifies various cases of napi threaded
+    set and unset at napi and device level.
+    """
+    with NetdevSimDev(queue_count=2) as nsimdev:
+        nsim = nsimdev.nsims[0]
+
+        ip(f"link set dev {nsim.ifname} up")
+
+        napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
+        ksft_eq(len(napis), 2)
+
+        napi0_id = napis[0]['id']
+        napi1_id = napis[1]['id']
+
+        # set napi threaded and verify
+        nf.napi_set({'id': napi0_id, 'threaded': "enabled"})
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "enabled")
+        ksft_ne(napi0.get('pid'), None)
+
+        # check it is not set for napi1
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "disabled")
+        ksft_eq(napi1.get('pid'), None)
+
+        ip(f"link set dev {nsim.ifname} down")
+        ip(f"link set dev {nsim.ifname} up")
+
+        # verify if napi threaded is still set
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "enabled")
+        ksft_ne(napi0.get('pid'), None)
+
+        # check it is still not set for napi1
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "disabled")
+        ksft_eq(napi1.get('pid'), None)
+
+        # unset napi threaded and verify
+        nf.napi_set({'id': napi0_id, 'threaded': "disabled"})
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "disabled")
+        ksft_eq(napi0.get('pid'), None)
+
+        # set threaded at device level
+        system(f"echo 1 > /sys/class/net/{nsim.ifname}/threaded")
+
+        # check napi threaded is set for both napis
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "enabled")
+        ksft_ne(napi0.get('pid'), None)
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "enabled")
+        ksft_ne(napi1.get('pid'), None)
+
+        # unset threaded at device level
+        system(f"echo 0 > /sys/class/net/{nsim.ifname}/threaded")
+
+        # check napi threaded is unset for both napis
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "disabled")
+        ksft_eq(napi0.get('pid'), None)
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "disabled")
+        ksft_eq(napi1.get('pid'), None)
+
+        # set napi threaded for napi0
+        nf.napi_set({'id': napi0_id, 'threaded': 1})
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "enabled")
+        ksft_ne(napi0.get('pid'), None)
+
+        # unset threaded at device level
+        system(f"echo 0 > /sys/class/net/{nsim.ifname}/threaded")
+
+        # check napi threaded is unset for both napis
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "disabled")
+        ksft_eq(napi0.get('pid'), None)
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "disabled")
+        ksft_eq(napi1.get('pid'), None)
+
+def dev_set_threaded(nf) -> None:
+    """
+    Test that verifies various cases of napi threaded
+    set and unset at device level using sysfs.
+    """
+    with NetdevSimDev(queue_count=2) as nsimdev:
+        nsim = nsimdev.nsims[0]
+
+        ip(f"link set dev {nsim.ifname} up")
+
+        napis = nf.napi_get({'ifindex': nsim.ifindex}, dump=True)
+        ksft_eq(len(napis), 2)
+
+        napi0_id = napis[0]['id']
+        napi1_id = napis[1]['id']
+
+        # set threaded
+        system(f"echo 1 > /sys/class/net/{nsim.ifname}/threaded")
+
+        # check napi threaded is set for both napis
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "enabled")
+        ksft_ne(napi0.get('pid'), None)
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "enabled")
+        ksft_ne(napi1.get('pid'), None)
+
+        # unset threaded
+        system(f"echo 0 > /sys/class/net/{nsim.ifname}/threaded")
+
+        # check napi threaded is unset for both napis
+        napi0 = nf.napi_get({'id': napi0_id})
+        ksft_eq(napi0['threaded'], "disabled")
+        ksft_eq(napi0.get('pid'), None)
+        napi1 = nf.napi_get({'id': napi1_id})
+        ksft_eq(napi1['threaded'], "disabled")
+        ksft_eq(napi1.get('pid'), None)
+
+def nsim_rxq_reset_down(nf) -> None:
+    """
+    Test that the queue API supports resetting a queue
+    while the interface is down. We should convert this
+    test to testing real HW once more devices support
+    queue API.
+    """
+    with NetdevSimDev(queue_count=4) as nsimdev:
+        nsim = nsimdev.nsims[0]
+
+        ip(f"link set dev {nsim.ifname} down")
+        for i in [0, 2, 3]:
+            nsim.dfs_write("queue_reset", f"1 {i}")
+
+
+def page_pool_check(nf) -> None:
+    with NetdevSimDev() as nsimdev:
+        nsim = nsimdev.nsims[0]
+
+        def up():
+            ip(f"link set dev {nsim.ifname} up")
+
+        def down():
+            ip(f"link set dev {nsim.ifname} down")
+
+        def get_pp():
+            pp_list = nf.page_pool_get({}, dump=True)
+            return [pp for pp in pp_list if pp.get("ifindex") == nsim.ifindex]
+
+        # No page pools when down
+        down()
+        ksft_eq(len(get_pp()), 0)
+
+        # Up, empty page pool appears
+        up()
+        pp_list = get_pp()
+        ksft_ge(len(pp_list), 0)
+        refs = sum([pp["inflight"] for pp in pp_list])
+        ksft_eq(refs, 0)
+
+        # Down, it disappears, again
+        down()
+        pp_list = get_pp()
+        ksft_eq(len(pp_list), 0)
+
+        # Up, allocate a page
+        up()
+        nsim.dfs_write("pp_hold", "y")
+        pp_list = nf.page_pool_get({}, dump=True)
+        refs = sum([pp["inflight"] for pp in pp_list if pp.get("ifindex") == nsim.ifindex])
+        ksft_ge(refs, 1)
+
+        # Now let's leak a page
+        down()
+        pp_list = get_pp()
+        ksft_eq(len(pp_list), 1)
+        refs = sum([pp["inflight"] for pp in pp_list])
+        ksft_eq(refs, 1)
+        attached = [pp for pp in pp_list if "detach-time" not in pp]
+        ksft_eq(len(attached), 0)
+
+        # New pp can get created, and we'll have two
+        up()
+        pp_list = get_pp()
+        attached = [pp for pp in pp_list if "detach-time" not in pp]
+        detached = [pp for pp in pp_list if "detach-time" in pp]
+        ksft_eq(len(attached), 1)
+        ksft_eq(len(detached), 1)
+
+        # Free the old page and the old pp is gone
+        nsim.dfs_write("pp_hold", "n")
+        # Freeing check is once a second so we may need to retry
+        ksft_busy_wait(lambda: len(get_pp()) == 1, deadline=2)
+
+        # And down...
+        down()
+        ksft_eq(len(get_pp()), 0)
+
+        # Last, leave the page hanging for destroy, nothing to check
+        # we're trying to exercise the orphaning path in the kernel
+        up()
+        nsim.dfs_write("pp_hold", "y")
+
+
+def main() -> None:
+    nf = NetdevFamily()
+    ksft_run([empty_check, lo_check, page_pool_check, napi_list_check,
+              dev_set_threaded, napi_set_threaded, nsim_rxq_reset_down],
+             args=(nf, ))
+    ksft_exit()
+
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/net/openvswitch/Makefile b/tools/testing/selftests/net/openvswitch/Makefile
new file mode 100644
index 000000000000..3fd1da2ec07d
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+
+top_srcdir = ../../../../..
+
+CFLAGS += -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include $(KHDR_INCLUDES)
+
+TEST_PROGS := openvswitch.sh
+
+TEST_FILES := ovs-dpctl.py
+
+EXTRA_CLEAN := test_netlink_checks
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh
new file mode 100755
index 000000000000..b327d3061ed5
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
@@ -0,0 +1,948 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# OVS kernel module self tests
+
+trap ovs_exit_sig EXIT TERM INT ERR
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+TRACING=0
+WAIT_TIMEOUT=5
+
+if test "X$KSFT_MACHINE_SLOW" == "Xyes"; then
+	WAIT_TIMEOUT=10
+fi
+
+tests="
+	arp_ping				eth-arp: Basic arp ping between two NS
+	ct_connect_v4				ip4-ct-xon: Basic ipv4 tcp connection using ct
+	connect_v4				ip4-xon: Basic ipv4 ping between two NS
+	nat_connect_v4				ip4-nat-xon: Basic ipv4 tcp connection via NAT
+	nat_related_v4				ip4-nat-related: ICMP related matches work with SNAT
+	netlink_checks				ovsnl: validate netlink attrs and settings
+	upcall_interfaces			ovs: test the upcall interfaces
+	tunnel_metadata				ovs: test extraction of tunnel metadata
+	drop_reason				drop: test drop reasons are emitted
+	psample					psample: Sampling packets with psample"
+
+info() {
+	[ "${ovs_dir}" != "" ] &&
+		echo "`date +"[%m-%d %H:%M:%S]"` $*" >> ${ovs_dir}/debug.log
+	[ $VERBOSE = 0 ] || echo $*
+}
+
+ovs_wait() {
+	info "waiting $WAIT_TIMEOUT s for: $@"
+
+	if "$@" ; then
+		info "wait succeeded immediately"
+		return 0
+	fi
+
+	# A quick re-check helps speed up small races in fast systems.
+	# However, fractional sleeps might not necessarily work.
+	local start=0
+	sleep 0.1 || { sleep 1; start=1; }
+
+	for (( i=start; i<WAIT_TIMEOUT; i++ )); do
+		if "$@" ; then
+			info "wait succeeded after $i seconds"
+			return 0
+		fi
+		sleep 1
+	done
+	info "wait failed after $i seconds"
+	return 1
+}
+
+ovs_base=`pwd`
+sbxs=
+sbx_add () {
+	info "adding sandbox '$1'"
+
+	sbxs="$sbxs $1"
+
+	NO_BIN=0
+
+	# Create sandbox.
+	local d="$ovs_base"/$1
+	if [ -e $d ]; then
+		info "removing $d"
+		rm -rf "$d"
+	fi
+	mkdir "$d" || return 1
+	ovs_setenv $1
+}
+
+ovs_exit_sig() {
+	[ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup"
+}
+
+on_exit() {
+	echo "$1" > ${ovs_dir}/cleanup.tmp
+	cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp
+	mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup
+}
+
+ovs_setenv() {
+	sandbox=$1
+
+	ovs_dir=$ovs_base${1:+/$1}; export ovs_dir
+
+	test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup
+}
+
+ovs_sbx() {
+	if test "X$2" != X; then
+		(ovs_setenv $1; shift;
+		 info "run cmd: $@"; "$@" >> ${ovs_dir}/debug.log)
+	else
+		ovs_setenv $1
+	fi
+}
+
+ovs_add_dp () {
+	info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}"
+	sbxname="$1"
+	shift
+	ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $*
+	on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;"
+}
+
+ovs_add_if () {
+	info "Adding IF to DP: br:$3 if:$4 ($2)"
+	if [ "$5" != "-u" ]; then
+		ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if \
+		    -t "$2" "$3" "$4" || return 1
+	else
+		python3 $ovs_base/ovs-dpctl.py add-if \
+		    -u -t "$2" "$3" "$4" >$ovs_dir/$4.out 2>$ovs_dir/$4.err &
+		pid=$!
+		on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null"
+	fi
+}
+
+ovs_del_if () {
+	info "Deleting IF from DP: br:$2 if:$3"
+	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1
+}
+
+ovs_netns_spawn_daemon() {
+	sbx=$1
+	shift
+	netns=$1
+	shift
+	if [ "$netns" == "_default" ]; then
+		$*  >> $ovs_dir/stdout  2>> $ovs_dir/stderr &
+	else
+		ip netns exec $netns $*  >> $ovs_dir/stdout  2>> $ovs_dir/stderr &
+	fi
+	pid=$!
+	ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null"
+}
+
+ovs_spawn_daemon() {
+	sbx=$1
+	shift
+	ovs_netns_spawn_daemon $sbx "_default" $*
+}
+
+ovs_add_netns_and_veths () {
+	info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}"
+	ovs_sbx "$1" ip netns add "$3" || return 1
+	on_exit "ovs_sbx $1 ip netns del $3"
+	ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1
+	on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1"
+	ovs_sbx "$1" ip link set "$4" up || return 1
+	ovs_sbx "$1" ip link set "$5" netns "$3" || return 1
+	ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1
+
+	if [ "$6" != "" ]; then
+		ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \
+		    || return 1
+	fi
+
+	if [ "$7" != "-u" ]; then
+		ovs_add_if "$1" "netdev" "$2" "$4" || return 1
+	else
+		ovs_add_if "$1" "netdev" "$2" "$4" -u || return 1
+	fi
+
+	if [ $TRACING -eq 1 ]; then
+		ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553
+		ovs_wait grep -q "listening on any" ${ovs_dir}/stderr
+	fi
+
+	return 0
+}
+
+ovs_add_flow () {
+	info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4"
+	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4"
+	if [ $? -ne 0 ]; then
+		info "Flow [ $3 : $4 ] failed"
+		return 1
+	fi
+	return 0
+}
+
+ovs_del_flows () {
+	info "Deleting all flows from DP: sbx:$1 br:$2"
+	ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2"
+	return 0
+}
+
+ovs_drop_record_and_run () {
+	local sbx=$1
+	shift
+
+	perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \
+		>> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr
+	return $?
+}
+
+ovs_drop_reason_count()
+{
+	local reason=$1
+
+	local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace`
+	local pattern="skb:kfree_skb:.*reason: $reason"
+
+	return `echo "$perf_output" | grep "$pattern" | wc -l`
+}
+
+ovs_test_flow_fails () {
+	ERR_MSG="Flow actions may not be safe on all matching packets"
+
+	PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
+	ovs_add_flow $@ &> /dev/null $@ && return 1
+	POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
+
+	if [ "$PRE_TEST" == "$POST_TEST" ]; then
+		return 1
+	fi
+	return 0
+}
+
+usage() {
+	echo
+	echo "$0 [OPTIONS] [TEST]..."
+	echo "If no TEST argument is given, all tests will be run."
+	echo
+	echo "Options"
+	echo "  -t: capture traffic via tcpdump"
+	echo "  -v: verbose"
+	echo "  -p: pause on failure"
+	echo
+	echo "Available tests${tests}"
+	exit 1
+}
+
+
+# psample test
+# - use psample to observe packets
+test_psample() {
+	sbx_add "test_psample" || return $?
+
+	# Add a datapath with per-vport dispatching.
+	ovs_add_dp "test_psample" psample -V 2:1 || return 1
+
+	info "create namespaces"
+	ovs_add_netns_and_veths "test_psample" "psample" \
+		client c0 c1 172.31.110.10/24 -u || return 1
+	ovs_add_netns_and_veths "test_psample" "psample" \
+		server s0 s1 172.31.110.20/24 -u || return 1
+
+	# Check if psample actions can be configured.
+	ovs_add_flow "test_psample" psample \
+	'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null
+	if [ $? == 1 ]; then
+		info "no support for psample - skipping"
+		ovs_exit_sig
+		return $ksft_skip
+	fi
+
+	ovs_del_flows "test_psample" psample
+
+	# Test action verification.
+	OLDIFS=$IFS
+	IFS='*'
+	min_key='in_port(1),eth(),eth_type(0x0800),ipv4()'
+	for testcase in \
+		"cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \
+		"no group with cookie"*"psample(cookie=abcd)" \
+		"no group"*"psample()";
+	do
+		set -- $testcase;
+		ovs_test_flow_fails "test_psample" psample $min_key $2
+		if [ $? == 1 ]; then
+			info "failed - $1"
+			return 1
+		fi
+	done
+	IFS=$OLDIFS
+
+	ovs_del_flows "test_psample" psample
+	# Allow ARP
+	ovs_add_flow "test_psample" psample \
+		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+	ovs_add_flow "test_psample" psample \
+		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+
+	# Sample first 14 bytes of all traffic.
+	ovs_add_flow "test_psample" psample \
+	    "in_port(1),eth(),eth_type(0x0800),ipv4()" \
+            "trunc(14),psample(group=1,cookie=c0ffee),2"
+
+	# Sample all traffic. In this case, use a sample() action with both
+	# psample and an upcall emulating simultaneous local sampling and
+	# sFlow / IPFIX.
+	nlpid=$(grep -E "listening on upcall packet handler" \
+            $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ')
+
+	ovs_add_flow "test_psample" psample \
+            "in_port(2),eth(),eth_type(0x0800),ipv4()" \
+            "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1"
+
+	# Record psample data.
+	ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events
+	ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout
+
+	# Send a single ping.
+	ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1
+
+	# We should have received one userspace action upcall and 2 psample packets.
+	ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1
+
+	# client -> server samples should only contain the first 14 bytes of the packet.
+	ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \
+		$ovs_dir/stdout || return 1
+
+	ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1
+
+	return 0
+}
+
+# drop_reason test
+# - drop packets and verify the right drop reason is reported
+test_drop_reason() {
+	which perf >/dev/null 2>&1 || return $ksft_skip
+	which pahole >/dev/null 2>&1 || return $ksft_skip
+
+	ovs_drop_subsys=$(pahole -C skb_drop_reason_subsys |
+			      awk '/OPENVSWITCH/ { print $3; }' |
+			      tr -d ,)
+
+	sbx_add "test_drop_reason" || return $?
+
+	ovs_add_dp "test_drop_reason" dropreason || return 1
+
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \
+			"${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	# Setup client namespace
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+
+	# Setup server namespace
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+
+	# Check if drop reasons can be sent
+	ovs_add_flow "test_drop_reason" dropreason \
+		'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null
+	if [ $? == 1 ]; then
+		info "no support for drop reasons - skipping"
+		ovs_exit_sig
+		return $ksft_skip
+	fi
+
+	ovs_del_flows "test_drop_reason" dropreason
+
+	# Allow ARP
+	ovs_add_flow "test_drop_reason" dropreason \
+		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+	ovs_add_flow "test_drop_reason" dropreason \
+		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+
+	# Allow client ICMP traffic but drop return path
+	ovs_add_flow "test_drop_reason" dropreason \
+		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2'
+	ovs_add_flow "test_drop_reason" dropreason \
+		"in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop'
+
+	ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20
+	ovs_drop_reason_count 0x${ovs_drop_subsys}0001 # OVS_DROP_FLOW_ACTION
+	if [[ "$?" -ne "2" ]]; then
+		info "Did not detect expected drops: $?"
+		return 1
+	fi
+
+	# Drop UDP 6000 traffic with an explicit action and an error code.
+	ovs_add_flow "test_drop_reason" dropreason \
+		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \
+                'drop(42)'
+	# Drop UDP 7000 traffic with an explicit action with no error code.
+	ovs_add_flow "test_drop_reason" dropreason \
+		"in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \
+                'drop(0)'
+
+	ovs_drop_record_and_run \
+            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000
+	ovs_drop_reason_count 0x${ovs_drop_subsys}0004 # OVS_DROP_EXPLICIT_ACTION_ERROR
+	if [[ "$?" -ne "1" ]]; then
+		info "Did not detect expected explicit error drops: $?"
+		return 1
+	fi
+
+	ovs_drop_record_and_run \
+            "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000
+	ovs_drop_reason_count 0x${ovs_drop_subsys}0003 # OVS_DROP_EXPLICIT_ACTION
+	if [[ "$?" -ne "1" ]]; then
+		info "Did not detect expected explicit drops: $?"
+		return 1
+	fi
+
+	return 0
+}
+
+# arp_ping test
+# - client has 1500 byte MTU
+# - server has 1500 byte MTU
+# - send ARP ping between two ns
+test_arp_ping () {
+
+	which arping >/dev/null 2>&1 || return $ksft_skip
+
+	sbx_add "test_arp_ping" || return $?
+
+	ovs_add_dp "test_arp_ping" arpping || return 1
+
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \
+		    "${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	# Setup client namespace
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+	HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
+	info "Client hwaddr: $HW_CLIENT"
+
+	# Setup server namespace
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+	HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'`
+	info "Server hwaddr: $HW_SERVER"
+
+	ovs_add_flow "test_arp_ping" arpping \
+		"in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1
+	ovs_add_flow "test_arp_ping" arpping \
+		"in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1
+
+	ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1
+
+	return 0
+}
+
+# ct_connect_v4 test
+#  - client has 1500 byte MTU
+#  - server has 1500 byte MTU
+#  - use ICMP to ping in each direction
+#  - only allow CT state stuff to pass through new in c -> s
+test_ct_connect_v4 () {
+
+	which nc >/dev/null 2>/dev/null || return $ksft_skip
+
+	sbx_add "test_ct_connect_v4" || return $?
+
+	ovs_add_dp "test_ct_connect_v4" ct4 || return 1
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \
+		    "${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+
+	# Add forwarding for ARP and ip packets - completely wildcarded
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		     'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \
+		     'ct(commit),recirc(0x1)' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		     'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \
+		     '2' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		     'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \
+		     '2' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		     'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \
+		     '1' || return 1
+	ovs_add_flow "test_ct_connect_v4" ct4 \
+		     'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \
+		     return 1
+
+	# do a ping
+	ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
+
+	# create an echo server in 'server'
+	echo "server" | \
+		ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \
+				nc -lvnp 4443
+	ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1
+
+	# Now test in the other direction (should fail)
+	echo "client" | \
+		ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \
+				nc -lvnp 4443
+	ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443
+	if [ $? == 0 ]; then
+	   info "ct connect to client was successful"
+	   return 1
+	fi
+
+	info "done..."
+	return 0
+}
+
+# connect_v4 test
+#  - client has 1500 byte MTU
+#  - server has 1500 byte MTU
+#  - use ICMP to ping in each direction
+test_connect_v4 () {
+
+	sbx_add "test_connect_v4" || return $?
+
+	ovs_add_dp "test_connect_v4" cv4 || return 1
+
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \
+		    "${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+
+	# Add forwarding for ARP and ip packets - completely wildcarded
+	ovs_add_flow "test_connect_v4" cv4 \
+		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+	ovs_add_flow "test_connect_v4" cv4 \
+		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+	ovs_add_flow "test_connect_v4" cv4 \
+		'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1
+	ovs_add_flow "test_connect_v4" cv4 \
+		'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1
+
+	# do a ping
+	ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1
+
+	info "done..."
+	return 0
+}
+
+# nat_connect_v4 test
+#  - client has 1500 byte MTU
+#  - server has 1500 byte MTU
+#  - use ICMP to ping in each direction
+#  - only allow CT state stuff to pass through new in c -> s
+test_nat_connect_v4 () {
+	which nc >/dev/null 2>/dev/null || return $ksft_skip
+
+	sbx_add "test_nat_connect_v4" || return $?
+
+	ovs_add_dp "test_nat_connect_v4" nat4 || return 1
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \
+		    "${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+
+	ip netns exec client ip route add default via 172.31.110.20
+
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		"ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \
+		"ct(commit,nat(dst=172.31.110.20)),recirc(0x1)"
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		"ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \
+		"ct(commit,nat),recirc(0x2)"
+
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		"recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2"
+	ovs_add_flow "test_nat_connect_v4" nat4 \
+		"recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1"
+
+	# do a ping
+	ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1
+
+	# create an echo server in 'server'
+	echo "server" | \
+		ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \
+				nc -lvnp 4443
+	ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1
+
+	# Now test in the other direction (should fail)
+	echo "client" | \
+		ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \
+				nc -lvnp 4443
+	ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443
+	if [ $? == 0 ]; then
+	   info "connect to client was successful"
+	   return 1
+	fi
+
+	info "done..."
+	return 0
+}
+
+# nat_related_v4 test
+#  - client->server ip packets go via SNAT
+#  - client solicits ICMP destination unreachable packet from server
+#  - undo NAT for ICMP reply and test dst ip has been updated
+test_nat_related_v4 () {
+	which nc >/dev/null 2>/dev/null || return $ksft_skip
+
+	sbx_add "test_nat_related_v4" || return $?
+
+	ovs_add_dp "test_nat_related_v4" natrelated4 || return 1
+	info "create namespaces"
+	for ns in client server; do
+		ovs_add_netns_and_veths "test_nat_related_v4" "natrelated4" "$ns" \
+			"${ns:0:1}0" "${ns:0:1}1" || return 1
+	done
+
+	ip netns exec client ip addr add 172.31.110.10/24 dev c1
+	ip netns exec client ip link set c1 up
+	ip netns exec server ip addr add 172.31.110.20/24 dev s1
+	ip netns exec server ip link set s1 up
+
+	ip netns exec server ip route add 192.168.0.20/32 via 172.31.110.10
+
+	# Allow ARP
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"in_port(1),eth(),eth_type(0x0806),arp()" "2" || return 1
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"in_port(2),eth(),eth_type(0x0806),arp()" "1" || return 1
+
+	# Allow IP traffic from client->server, rewrite source IP with SNAT to 192.168.0.20
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=172.31.110.20)" \
+		"ct(commit,nat(src=192.168.0.20)),recirc(0x1)" || return 1
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" \
+		"2" || return 1
+
+	# Allow related ICMP responses back from server and undo NAT to restore original IP
+	# Drop any ICMP related packets where dst ip hasn't been restored back to original IP
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \
+		"ct(commit,nat),recirc(0x2)" || return 1
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,dst=172.31.110.10,proto=1),icmp()" \
+		"1" || return 1
+	ovs_add_flow "test_nat_related_v4" natrelated4 \
+		"recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20,proto=1),icmp()" \
+		"drop" || return 1
+
+	# Solicit destination unreachable response from server
+	ovs_sbx "test_nat_related_v4" ip netns exec client \
+		bash -c "echo a | nc -u -w 1 172.31.110.20 10000"
+
+	# Check to make sure no packets matched the drop rule with incorrect dst ip
+	python3 "$ovs_base/ovs-dpctl.py" dump-flows natrelated4 \
+		| grep "drop" | grep "packets:0" >/dev/null || return 1
+
+	info "done..."
+	return 0
+}
+
+# netlink_validation
+# - Create a dp
+# - check no warning with "old version" simulation
+test_netlink_checks () {
+	sbx_add "test_netlink_checks" || return 1
+
+	info "setting up new DP"
+	ovs_add_dp "test_netlink_checks" nv0 || return 1
+	# now try again
+	PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
+	ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1
+	POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+")
+	if [ "$PRE_TEST" != "$POST_TEST" ]; then
+		info "failed - gen warning"
+		return 1
+	fi
+
+	ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \
+	    return 1
+	ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \
+	    return 1
+	[ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \
+	    wc -l) == 3 ] || \
+	      return 1
+	ovs_del_if "test_netlink_checks" nv0 right0 || return 1
+	[ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \
+	    wc -l) == 2 ] || \
+	      return 1
+
+	info "Checking clone depth"
+	ERR_MSG="Flow actions may not be safe on all matching packets"
+	PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
+	ovs_add_flow "test_netlink_checks" nv0 \
+		'in_port(1),eth(),eth_type(0x800),ipv4()' \
+		'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \
+		>/dev/null 2>&1 && return 1
+	POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
+
+	if [ "$PRE_TEST" == "$POST_TEST" ]; then
+		info "failed - clone depth too large"
+		return 1
+	fi
+
+	PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
+	ovs_add_flow "test_netlink_checks" nv0 \
+		'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \
+		&> /dev/null && return 1
+	POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
+	if [ "$PRE_TEST" == "$POST_TEST" ]; then
+		info "failed - error not generated"
+		return 1
+	fi
+	return 0
+}
+
+test_upcall_interfaces() {
+	sbx_add "test_upcall_interfaces" || return 1
+
+	info "setting up new DP"
+	ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1
+
+	ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \
+	    172.31.110.1/24 -u || return 1
+
+	ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out
+
+	info "sending arping"
+	ip netns exec upc arping -I l0 172.31.110.20 -c 1 \
+	    >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr
+
+	grep -E "MISS upcall\[0/yes\]: .*arp\(sip=172.31.110.1,tip=172.31.110.20,op=1,sha=" $ovs_dir/left0.out >/dev/null 2>&1 || return 1
+	return 0
+}
+
+ovs_add_kernel_tunnel() {
+	local sbxname=$1; shift
+	local ns=$1; shift
+	local tnl_type=$1; shift
+	local name=$1; shift
+	local addr=$1; shift
+
+	info "setting up kernel ${tnl_type} tunnel ${name}"
+	ovs_sbx "${sbxname}" ip -netns ${ns} link add dev ${name} type ${tnl_type} $* || return 1
+	on_exit "ovs_sbx ${sbxname} ip -netns ${ns} link del ${name} >/dev/null 2>&1"
+	ovs_sbx "${sbxname}" ip -netns ${ns} addr add dev ${name} ${addr} || return 1
+	ovs_sbx "${sbxname}" ip -netns ${ns} link set dev ${name} mtu 1450 up || return 1
+}
+
+test_tunnel_metadata() {
+	which arping >/dev/null 2>&1 || return $ksft_skip
+
+	sbxname="test_tunnel_metadata"
+	sbx_add "${sbxname}" || return 1
+
+	info "setting up new DP"
+	ovs_add_dp "${sbxname}" tdp0 -V 2:1 || return 1
+
+	ovs_add_netns_and_veths "${sbxname}" tdp0 tns left0 l0 \
+		172.31.110.1/24 || return 1
+
+	info "removing veth interface from openvswitch and setting IP"
+	ovs_del_if "${sbxname}" tdp0 left0 || return 1
+	ovs_sbx "${sbxname}" ip addr add 172.31.110.2/24 dev left0 || return 1
+	ovs_sbx "${sbxname}" ip link set left0 up || return 1
+
+	info "setting up tunnel port in openvswitch"
+	ovs_add_if "${sbxname}" "vxlan" tdp0 ovs-vxlan0 -u || return 1
+	on_exit "ovs_sbx ${sbxname} ip link del ovs-vxlan0"
+	ovs_wait ip link show ovs-vxlan0 &>/dev/null || return 1
+	ovs_sbx "${sbxname}" ip link set ovs-vxlan0 up || return 1
+
+	configs=$(echo '
+	    1 172.31.221.1/24 1155332 32   set   udpcsum flags\(df\|csum\)
+	    2 172.31.222.1/24 1234567 45   set noudpcsum flags\(df\)
+	    3 172.31.223.1/24 1020304 23 unset   udpcsum flags\(csum\)
+	    4 172.31.224.1/24 1357986 15 unset noudpcsum' | sed '/^$/d')
+
+	while read -r i addr id ttl df csum flags; do
+		ovs_add_kernel_tunnel "${sbxname}" tns vxlan vxlan${i} ${addr} \
+			remote 172.31.110.2 id ${id} dstport 4789 \
+			ttl ${ttl} df ${df} ${csum} || return 1
+	done <<< "${configs}"
+
+	ovs_wait grep -q 'listening on upcall packet handler' \
+		${ovs_dir}/ovs-vxlan0.out || return 1
+
+	info "sending arping"
+	for i in 1 2 3 4; do
+		ovs_sbx "${sbxname}" ip netns exec tns \
+			arping -I vxlan${i} 172.31.22${i}.2 -c 1 \
+			>${ovs_dir}/arping.stdout 2>${ovs_dir}/arping.stderr
+	done
+
+	info "checking that received decapsulated packets carry correct metadata"
+	while read -r i addr id ttl df csum flags; do
+		arp_hdr="arp\\(sip=172.31.22${i}.1,tip=172.31.22${i}.2,op=1,sha="
+		addrs="src=172.31.110.1,dst=172.31.110.2"
+		ports="tp_src=[0-9]*,tp_dst=4789"
+		tnl_md="tunnel\\(tun_id=${id},${addrs},ttl=${ttl},${ports},${flags}\\)"
+
+		ovs_sbx "${sbxname}" grep -qE "MISS upcall.*${tnl_md}.*${arp_hdr}" \
+			${ovs_dir}/ovs-vxlan0.out || return 1
+	done <<< "${configs}"
+
+	return 0
+}
+
+run_test() {
+	(
+	tname="$1"
+	tdesc="$2"
+
+	if python3 ovs-dpctl.py -h 2>&1 | \
+	     grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then
+		stdbuf -o0 printf "TEST: %-60s  [PYLIB]\n" "${tdesc}"
+		return $ksft_skip
+	fi
+
+	python3 ovs-dpctl.py show >/dev/null 2>&1 || \
+		echo "[DPCTL] show exception."
+
+	if ! lsmod | grep openvswitch >/dev/null 2>&1; then
+		stdbuf -o0 printf "TEST: %-60s  [NOMOD]\n" "${tdesc}"
+		return $ksft_skip
+	fi
+
+	printf "TEST: %-60s  [START]\n" "${tname}"
+
+	unset IFS
+
+	eval test_${tname}
+	ret=$?
+
+	if [ $ret -eq 0 ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${tdesc}"
+		ovs_exit_sig
+		rm -rf "$ovs_dir"
+	elif [ $ret -eq 1 ]; then
+		printf "TEST: %-60s  [FAIL]\n" "${tdesc}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "Pausing. Logs in $ovs_dir/. Hit enter to continue"
+			read a
+		fi
+		ovs_exit_sig
+		[ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir"
+		exit 1
+	elif [ $ret -eq $ksft_skip ]; then
+		printf "TEST: %-60s  [SKIP]\n" "${tdesc}"
+	elif [ $ret -eq 2 ]; then
+		rm -rf test_${tname}
+		run_test "$1" "$2"
+	fi
+
+	return $ret
+	)
+	ret=$?
+	case $ret in
+		0)
+			[ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0
+			all_skipped=false
+		;;
+		$ksft_skip)
+			[ $all_skipped = true ] && exitcode=$ksft_skip
+		;;
+		*)
+			all_skipped=false
+			exitcode=1
+		;;
+	esac
+
+	return $ret
+}
+
+
+exitcode=0
+desc=0
+all_skipped=true
+
+while getopts :pvt o
+do
+	case $o in
+	p) PAUSE_ON_FAIL=yes;;
+	v) VERBOSE=1;;
+	t) if which tcpdump > /dev/null 2>&1; then
+		TRACING=1
+	   else
+		echo "=== tcpdump not available, tracing disabled"
+	   fi
+	   ;;
+	*) usage;;
+	esac
+done
+shift $(($OPTIND-1))
+
+IFS="	
+"
+
+for arg do
+	# Check first that all requested tests are available before running any
+	command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; }
+done
+
+name=""
+desc=""
+for t in ${tests}; do
+	[ "${name}" = "" ]	&& name="${t}"	&& continue
+	[ "${desc}" = "" ]	&& desc="${t}"
+
+	run_this=1
+	for arg do
+		[ "${arg}" != "${arg#--*}" ] && continue
+		[ "${arg}" = "${name}" ] && run_this=1 && break
+		run_this=0
+	done
+	if [ $run_this -eq 1 ]; then
+		run_test "${name}" "${desc}"
+	fi
+	name=""
+	desc=""
+done
+
+exit ${exitcode}
diff --git a/tools/testing/selftests/net/openvswitch/ovs-dpctl.py b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
new file mode 100644
index 000000000000..b521e0dea506
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/ovs-dpctl.py
@@ -0,0 +1,2775 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+# Controls the openvswitch module.  Part of the kselftest suite, but
+# can be used for some diagnostic purpose as well.
+
+import argparse
+import errno
+import ipaddress
+import logging
+import math
+import multiprocessing
+import re
+import socket
+import struct
+import sys
+import time
+import types
+import uuid
+
+try:
+    from pyroute2 import NDB
+
+    from pyroute2.netlink import NLA_F_NESTED
+    from pyroute2.netlink import NLM_F_ACK
+    from pyroute2.netlink import NLM_F_DUMP
+    from pyroute2.netlink import NLM_F_REQUEST
+    from pyroute2.netlink import genlmsg
+    from pyroute2.netlink import nla
+    from pyroute2.netlink import nlmsg_atoms
+    from pyroute2.netlink.event import EventSocket
+    from pyroute2.netlink.exceptions import NetlinkError
+    from pyroute2.netlink.generic import GenericNetlinkSocket
+    from pyroute2.netlink.nlsocket import Marshal
+    import pyroute2
+    import pyroute2.iproute
+
+except ModuleNotFoundError:
+    print("Need to install the python pyroute2 package >= 0.6.")
+    sys.exit(1)
+
+
+OVS_DATAPATH_FAMILY = "ovs_datapath"
+OVS_VPORT_FAMILY = "ovs_vport"
+OVS_FLOW_FAMILY = "ovs_flow"
+OVS_PACKET_FAMILY = "ovs_packet"
+OVS_METER_FAMILY = "ovs_meter"
+OVS_CT_LIMIT_FAMILY = "ovs_ct_limit"
+
+OVS_DATAPATH_VERSION = 2
+OVS_DP_CMD_NEW = 1
+OVS_DP_CMD_DEL = 2
+OVS_DP_CMD_GET = 3
+OVS_DP_CMD_SET = 4
+
+OVS_VPORT_CMD_NEW = 1
+OVS_VPORT_CMD_DEL = 2
+OVS_VPORT_CMD_GET = 3
+OVS_VPORT_CMD_SET = 4
+
+OVS_FLOW_CMD_NEW = 1
+OVS_FLOW_CMD_DEL = 2
+OVS_FLOW_CMD_GET = 3
+OVS_FLOW_CMD_SET = 4
+
+UINT32_MAX = 0xFFFFFFFF
+
+def macstr(mac):
+    outstr = ":".join(["%02X" % i for i in mac])
+    return outstr
+
+
+def strcspn(str1, str2):
+    tot = 0
+    for char in str1:
+        if str2.find(char) != -1:
+            return tot
+        tot += 1
+    return tot
+
+
+def strspn(str1, str2):
+    tot = 0
+    for char in str1:
+        if str2.find(char) == -1:
+            return tot
+        tot += 1
+    return tot
+
+
+def intparse(statestr, defmask="0xffffffff"):
+    totalparse = strspn(statestr, "0123456789abcdefABCDEFx/")
+    # scan until "/"
+    count = strspn(statestr, "x0123456789abcdefABCDEF")
+
+    firstnum = statestr[:count]
+    if firstnum[-1] == "/":
+        firstnum = firstnum[:-1]
+    k = int(firstnum, 0)
+
+    m = None
+    if defmask is not None:
+        secondnum = defmask
+        if statestr[count] == "/":
+            secondnum = statestr[count + 1 :]  # this is wrong...
+        m = int(secondnum, 0)
+
+    return statestr[totalparse + 1 :], k, m
+
+
+def parse_flags(flag_str, flag_vals):
+    bitResult = 0
+    maskResult = 0
+
+    if len(flag_str) == 0:
+        return flag_str, bitResult, maskResult
+
+    if flag_str[0].isdigit():
+        idx = 0
+        while flag_str[idx].isdigit() or flag_str[idx] == "x":
+            idx += 1
+        digits = flag_str[:idx]
+        flag_str = flag_str[idx:]
+
+        bitResult = int(digits, 0)
+        maskResult = int(digits, 0)
+
+    while len(flag_str) > 0 and (flag_str[0] == "+" or flag_str[0] == "-"):
+        if flag_str[0] == "+":
+            setFlag = True
+        elif flag_str[0] == "-":
+            setFlag = False
+
+        flag_str = flag_str[1:]
+
+        flag_len = 0
+        while (
+            flag_str[flag_len] != "+"
+            and flag_str[flag_len] != "-"
+            and flag_str[flag_len] != ","
+            and flag_str[flag_len] != ")"
+        ):
+            flag_len += 1
+
+        flag = flag_str[0:flag_len]
+
+        if flag in flag_vals:
+            if maskResult & flag_vals[flag]:
+                raise KeyError(
+                    "Flag %s set once, cannot be set in multiples" % flag
+                )
+
+            if setFlag:
+                bitResult |= flag_vals[flag]
+
+            maskResult |= flag_vals[flag]
+        else:
+            raise KeyError("Missing flag value: %s" % flag)
+
+        flag_str = flag_str[flag_len:]
+
+    return flag_str, bitResult, maskResult
+
+
+def parse_ct_state(statestr):
+    ct_flags = {
+        "new": 1 << 0,
+        "est": 1 << 1,
+        "rel": 1 << 2,
+        "rpl": 1 << 3,
+        "inv": 1 << 4,
+        "trk": 1 << 5,
+        "snat": 1 << 6,
+        "dnat": 1 << 7,
+    }
+
+    return parse_flags(statestr, ct_flags)
+
+
+def convert_mac(data):
+    def to_bytes(mac):
+        mac_split = mac.split(":")
+        ret = bytearray([int(i, 16) for i in mac_split])
+        return bytes(ret)
+
+    mac_str, _, mask_str = data.partition('/')
+
+    if not mac_str:
+        mac_str = mask_str = "00:00:00:00:00:00"
+    elif not mask_str:
+        mask_str = "FF:FF:FF:FF:FF:FF"
+
+    return to_bytes(mac_str), to_bytes(mask_str)
+
+def convert_ipv4(data):
+    ip, _, mask = data.partition('/')
+
+    if not ip:
+        ip = mask = 0
+    elif not mask:
+        mask = 0xFFFFFFFF
+    elif mask.isdigit():
+        mask = (0xFFFFFFFF << (32 - int(mask))) & 0xFFFFFFFF
+
+    return int(ipaddress.IPv4Address(ip)), int(ipaddress.IPv4Address(mask))
+
+def convert_ipv6(data):
+    ip, _, mask = data.partition('/')
+
+    if not ip:
+        ip = mask = 0
+    elif not mask:
+        mask = 'ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff'
+    elif mask.isdigit():
+        mask = ipaddress.IPv6Network("::/" + mask).hostmask
+
+    return ipaddress.IPv6Address(ip).packed, ipaddress.IPv6Address(mask).packed
+
+def convert_int(size):
+    def convert_int_sized(data):
+        value, _, mask = data.partition('/')
+
+        if not value:
+            return 0, 0
+        elif not mask:
+            return int(value, 0), pow(2, size) - 1
+        else:
+            return int(value, 0), int(mask, 0)
+
+    return convert_int_sized
+
+def parse_starts_block(block_str, scanstr, returnskipped, scanregex=False):
+    if scanregex:
+        m = re.search(scanstr, block_str)
+        if m is None:
+            if returnskipped:
+                return block_str
+            return False
+        if returnskipped:
+            block_str = block_str[len(m.group(0)) :]
+            return block_str
+        return True
+
+    if block_str.startswith(scanstr):
+        if returnskipped:
+            block_str = block_str[len(scanstr) :]
+        else:
+            return True
+
+    if returnskipped:
+        return block_str
+
+    return False
+
+
+def parse_extract_field(
+    block_str, fieldstr, scanfmt, convert, masked=False, defval=None
+):
+    if fieldstr and not block_str.startswith(fieldstr):
+        return block_str, defval
+
+    if fieldstr:
+        str_skiplen = len(fieldstr)
+        str_skipped = block_str[str_skiplen:]
+        if str_skiplen == 0:
+            return str_skipped, defval
+    else:
+        str_skiplen = 0
+        str_skipped = block_str
+
+    m = re.search(scanfmt, str_skipped)
+    if m is None:
+        raise ValueError("Bad fmt string")
+
+    data = m.group(0)
+    if convert:
+        data = convert(m.group(0))
+
+    str_skipped = str_skipped[len(m.group(0)) :]
+    if masked:
+        if str_skipped[0] == "/":
+            raise ValueError("Masking support TBD...")
+
+    str_skipped = str_skipped[strspn(str_skipped, ", ") :]
+    return str_skipped, data
+
+
+def parse_attrs(actstr, attr_desc):
+    """Parses the given action string and returns a list of netlink
+    attributes based on a list of attribute descriptions.
+
+    Each element in the attribute description list is a tuple such as:
+        (name, attr_name, parse_func)
+    where:
+        name: is the string representing the attribute
+        attr_name: is the name of the attribute as defined in the uAPI.
+        parse_func: is a callable accepting a string and returning either
+            a single object (the parsed attribute value) or a tuple of
+            two values (the parsed attribute value and the remaining string)
+
+    Returns a list of attributes and the remaining string.
+    """
+    def parse_attr(actstr, key, func):
+        actstr = actstr[len(key) :]
+
+        if not func:
+            return None, actstr
+
+        delim = actstr[0]
+        actstr = actstr[1:]
+
+        if delim == "=":
+            pos = strcspn(actstr, ",)")
+            ret = func(actstr[:pos])
+        else:
+            ret = func(actstr)
+
+        if isinstance(ret, tuple):
+            (datum, actstr) = ret
+        else:
+            datum = ret
+            actstr = actstr[strcspn(actstr, ",)"):]
+
+        if delim == "(":
+            if not actstr or actstr[0] != ")":
+                raise ValueError("Action contains unbalanced parentheses")
+
+            actstr = actstr[1:]
+
+        actstr = actstr[strspn(actstr, ", ") :]
+
+        return datum, actstr
+
+    attrs = []
+    attr_desc = list(attr_desc)
+    while actstr and actstr[0] != ")" and attr_desc:
+        found = False
+        for i, (key, attr, func) in enumerate(attr_desc):
+            if actstr.startswith(key):
+                datum, actstr = parse_attr(actstr, key, func)
+                attrs.append([attr, datum])
+                found = True
+                del attr_desc[i]
+
+        if not found:
+            raise ValueError("Unknown attribute: '%s'" % actstr)
+
+        actstr = actstr[strspn(actstr, ", ") :]
+
+    if actstr[0] != ")":
+        raise ValueError("Action string contains extra garbage or has "
+                         "unbalanced parenthesis: '%s'" % actstr)
+
+    return attrs, actstr[1:]
+
+
+class ovs_dp_msg(genlmsg):
+    # include the OVS version
+    # We need a custom header rather than just being able to rely on
+    # genlmsg because fields ends up not expressing everything correctly
+    # if we use the canonical example of setting fields = (('customfield',),)
+    fields = genlmsg.fields + (("dpifindex", "I"),)
+
+
+class ovsactions(nla):
+    nla_flags = NLA_F_NESTED
+
+    nla_map = (
+        ("OVS_ACTION_ATTR_UNSPEC", "none"),
+        ("OVS_ACTION_ATTR_OUTPUT", "uint32"),
+        ("OVS_ACTION_ATTR_USERSPACE", "userspace"),
+        ("OVS_ACTION_ATTR_SET", "ovskey"),
+        ("OVS_ACTION_ATTR_PUSH_VLAN", "none"),
+        ("OVS_ACTION_ATTR_POP_VLAN", "flag"),
+        ("OVS_ACTION_ATTR_SAMPLE", "sample"),
+        ("OVS_ACTION_ATTR_RECIRC", "uint32"),
+        ("OVS_ACTION_ATTR_HASH", "none"),
+        ("OVS_ACTION_ATTR_PUSH_MPLS", "none"),
+        ("OVS_ACTION_ATTR_POP_MPLS", "flag"),
+        ("OVS_ACTION_ATTR_SET_MASKED", "ovskey"),
+        ("OVS_ACTION_ATTR_CT", "ctact"),
+        ("OVS_ACTION_ATTR_TRUNC", "uint32"),
+        ("OVS_ACTION_ATTR_PUSH_ETH", "none"),
+        ("OVS_ACTION_ATTR_POP_ETH", "flag"),
+        ("OVS_ACTION_ATTR_CT_CLEAR", "flag"),
+        ("OVS_ACTION_ATTR_PUSH_NSH", "none"),
+        ("OVS_ACTION_ATTR_POP_NSH", "flag"),
+        ("OVS_ACTION_ATTR_METER", "none"),
+        ("OVS_ACTION_ATTR_CLONE", "recursive"),
+        ("OVS_ACTION_ATTR_CHECK_PKT_LEN", "none"),
+        ("OVS_ACTION_ATTR_ADD_MPLS", "none"),
+        ("OVS_ACTION_ATTR_DEC_TTL", "none"),
+        ("OVS_ACTION_ATTR_DROP", "uint32"),
+        ("OVS_ACTION_ATTR_PSAMPLE", "psample"),
+    )
+
+    class psample(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_PSAMPLE_ATTR_UNSPEC", "none"),
+            ("OVS_PSAMPLE_ATTR_GROUP", "uint32"),
+            ("OVS_PSAMPLE_ATTR_COOKIE", "array(uint8)"),
+        )
+
+        def dpstr(self, more=False):
+            args = "group=%d" % self.get_attr("OVS_PSAMPLE_ATTR_GROUP")
+
+            cookie = self.get_attr("OVS_PSAMPLE_ATTR_COOKIE")
+            if cookie:
+                args += ",cookie(%s)" % \
+                        "".join(format(x, "02x") for x in cookie)
+
+            return "psample(%s)" % args
+
+        def parse(self, actstr):
+            desc = (
+                ("group", "OVS_PSAMPLE_ATTR_GROUP", int),
+                ("cookie", "OVS_PSAMPLE_ATTR_COOKIE",
+                    lambda x: list(bytearray.fromhex(x)))
+            )
+
+            attrs, actstr = parse_attrs(actstr, desc)
+
+            for attr in attrs:
+                self["attrs"].append(attr)
+
+            return actstr
+
+    class sample(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_SAMPLE_ATTR_UNSPEC", "none"),
+            ("OVS_SAMPLE_ATTR_PROBABILITY", "uint32"),
+            ("OVS_SAMPLE_ATTR_ACTIONS", "ovsactions"),
+        )
+
+        def dpstr(self, more=False):
+            args = []
+
+            args.append("sample={:.2f}%".format(
+                100 * self.get_attr("OVS_SAMPLE_ATTR_PROBABILITY") /
+                UINT32_MAX))
+
+            actions = self.get_attr("OVS_SAMPLE_ATTR_ACTIONS")
+            if actions:
+                args.append("actions(%s)" % actions.dpstr(more))
+
+            return "sample(%s)" % ",".join(args)
+
+        def parse(self, actstr):
+            def parse_nested_actions(actstr):
+                subacts = ovsactions()
+                parsed_len = subacts.parse(actstr)
+                return subacts, actstr[parsed_len :]
+
+            def percent_to_rate(percent):
+                percent = float(percent.strip('%'))
+                return int(math.floor(UINT32_MAX * (percent / 100.0) + .5))
+
+            desc = (
+                ("sample", "OVS_SAMPLE_ATTR_PROBABILITY", percent_to_rate),
+                ("actions", "OVS_SAMPLE_ATTR_ACTIONS", parse_nested_actions),
+            )
+            attrs, actstr = parse_attrs(actstr, desc)
+
+            for attr in attrs:
+                self["attrs"].append(attr)
+
+            return actstr
+
+    class ctact(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_CT_ATTR_NONE", "none"),
+            ("OVS_CT_ATTR_COMMIT", "flag"),
+            ("OVS_CT_ATTR_ZONE", "uint16"),
+            ("OVS_CT_ATTR_MARK", "none"),
+            ("OVS_CT_ATTR_LABELS", "none"),
+            ("OVS_CT_ATTR_HELPER", "asciiz"),
+            ("OVS_CT_ATTR_NAT", "natattr"),
+            ("OVS_CT_ATTR_FORCE_COMMIT", "flag"),
+            ("OVS_CT_ATTR_EVENTMASK", "uint32"),
+            ("OVS_CT_ATTR_TIMEOUT", "asciiz"),
+        )
+
+        class natattr(nla):
+            nla_flags = NLA_F_NESTED
+
+            nla_map = (
+                ("OVS_NAT_ATTR_NONE", "none"),
+                ("OVS_NAT_ATTR_SRC", "flag"),
+                ("OVS_NAT_ATTR_DST", "flag"),
+                ("OVS_NAT_ATTR_IP_MIN", "ipaddr"),
+                ("OVS_NAT_ATTR_IP_MAX", "ipaddr"),
+                ("OVS_NAT_ATTR_PROTO_MIN", "uint16"),
+                ("OVS_NAT_ATTR_PROTO_MAX", "uint16"),
+                ("OVS_NAT_ATTR_PERSISTENT", "flag"),
+                ("OVS_NAT_ATTR_PROTO_HASH", "flag"),
+                ("OVS_NAT_ATTR_PROTO_RANDOM", "flag"),
+            )
+
+            def dpstr(self, more=False):
+                print_str = "nat("
+
+                if self.get_attr("OVS_NAT_ATTR_SRC"):
+                    print_str += "src"
+                elif self.get_attr("OVS_NAT_ATTR_DST"):
+                    print_str += "dst"
+                else:
+                    print_str += "XXX-unknown-nat"
+
+                if self.get_attr("OVS_NAT_ATTR_IP_MIN") or self.get_attr(
+                    "OVS_NAT_ATTR_IP_MAX"
+                ):
+                    if self.get_attr("OVS_NAT_ATTR_IP_MIN"):
+                        print_str += "=%s," % str(
+                            self.get_attr("OVS_NAT_ATTR_IP_MIN")
+                        )
+
+                    if self.get_attr("OVS_NAT_ATTR_IP_MAX"):
+                        print_str += "-%s," % str(
+                            self.get_attr("OVS_NAT_ATTR_IP_MAX")
+                        )
+                else:
+                    print_str += ","
+
+                if self.get_attr("OVS_NAT_ATTR_PROTO_MIN"):
+                    print_str += "proto_min=%d," % self.get_attr(
+                        "OVS_NAT_ATTR_PROTO_MIN"
+                    )
+
+                if self.get_attr("OVS_NAT_ATTR_PROTO_MAX"):
+                    print_str += "proto_max=%d," % self.get_attr(
+                        "OVS_NAT_ATTR_PROTO_MAX"
+                    )
+
+                if self.get_attr("OVS_NAT_ATTR_PERSISTENT"):
+                    print_str += "persistent,"
+                if self.get_attr("OVS_NAT_ATTR_HASH"):
+                    print_str += "hash,"
+                if self.get_attr("OVS_NAT_ATTR_RANDOM"):
+                    print_str += "random"
+                print_str += ")"
+                return print_str
+
+        def dpstr(self, more=False):
+            print_str = "ct("
+
+            if self.get_attr("OVS_CT_ATTR_COMMIT") is not None:
+                print_str += "commit,"
+            if self.get_attr("OVS_CT_ATTR_ZONE") is not None:
+                print_str += "zone=%d," % self.get_attr("OVS_CT_ATTR_ZONE")
+            if self.get_attr("OVS_CT_ATTR_HELPER") is not None:
+                print_str += "helper=%s," % self.get_attr("OVS_CT_ATTR_HELPER")
+            if self.get_attr("OVS_CT_ATTR_NAT") is not None:
+                print_str += self.get_attr("OVS_CT_ATTR_NAT").dpstr(more)
+                print_str += ","
+            if self.get_attr("OVS_CT_ATTR_FORCE_COMMIT") is not None:
+                print_str += "force,"
+            if self.get_attr("OVS_CT_ATTR_EVENTMASK") is not None:
+                print_str += "emask=0x%X," % self.get_attr(
+                    "OVS_CT_ATTR_EVENTMASK"
+                )
+            if self.get_attr("OVS_CT_ATTR_TIMEOUT") is not None:
+                print_str += "timeout=%s" % self.get_attr(
+                    "OVS_CT_ATTR_TIMEOUT"
+                )
+            print_str += ")"
+            return print_str
+
+    class userspace(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_USERSPACE_ATTR_UNUSED", "none"),
+            ("OVS_USERSPACE_ATTR_PID", "uint32"),
+            ("OVS_USERSPACE_ATTR_USERDATA", "array(uint8)"),
+            ("OVS_USERSPACE_ATTR_EGRESS_TUN_PORT", "uint32"),
+        )
+
+        def dpstr(self, more=False):
+            print_str = "userspace("
+            if self.get_attr("OVS_USERSPACE_ATTR_PID") is not None:
+                print_str += "pid=%d," % self.get_attr(
+                    "OVS_USERSPACE_ATTR_PID"
+                )
+            if self.get_attr("OVS_USERSPACE_ATTR_USERDATA") is not None:
+                print_str += "userdata="
+                for f in self.get_attr("OVS_USERSPACE_ATTR_USERDATA"):
+                    print_str += "%x." % f
+            if self.get_attr("OVS_USERSPACE_ATTR_EGRESS_TUN_PORT") is not None:
+                print_str += "egress_tun_port=%d" % self.get_attr(
+                    "OVS_USERSPACE_ATTR_EGRESS_TUN_PORT"
+                )
+            print_str += ")"
+            return print_str
+
+        def parse(self, actstr):
+            attrs_desc = (
+                ("pid", "OVS_USERSPACE_ATTR_PID", int),
+                ("userdata", "OVS_USERSPACE_ATTR_USERDATA",
+                    lambda x: list(bytearray.fromhex(x))),
+                ("egress_tun_port", "OVS_USERSPACE_ATTR_EGRESS_TUN_PORT", int)
+            )
+
+            attrs, actstr = parse_attrs(actstr, attrs_desc)
+            for attr in attrs:
+                self["attrs"].append(attr)
+
+            return actstr
+
+    def dpstr(self, more=False):
+        print_str = ""
+
+        for field in self["attrs"]:
+            if field[1] == "none" or self.get_attr(field[0]) is None:
+                continue
+            if print_str != "":
+                print_str += ","
+
+            if field[0] == "OVS_ACTION_ATTR_OUTPUT":
+                print_str += "%d" % int(self.get_attr(field[0]))
+            elif field[0] == "OVS_ACTION_ATTR_RECIRC":
+                print_str += "recirc(0x%x)" % int(self.get_attr(field[0]))
+            elif field[0] == "OVS_ACTION_ATTR_TRUNC":
+                print_str += "trunc(%d)" % int(self.get_attr(field[0]))
+            elif field[0] == "OVS_ACTION_ATTR_DROP":
+                print_str += "drop(%d)" % int(self.get_attr(field[0]))
+            elif field[0] == "OVS_ACTION_ATTR_CT_CLEAR":
+                print_str += "ct_clear"
+            elif field[0] == "OVS_ACTION_ATTR_POP_VLAN":
+                print_str += "pop_vlan"
+            elif field[0] == "OVS_ACTION_ATTR_POP_ETH":
+                print_str += "pop_eth"
+            elif field[0] == "OVS_ACTION_ATTR_POP_NSH":
+                print_str += "pop_nsh"
+            elif field[0] == "OVS_ACTION_ATTR_POP_MPLS":
+                print_str += "pop_mpls"
+            else:
+                datum = self.get_attr(field[0])
+                if field[0] == "OVS_ACTION_ATTR_CLONE":
+                    print_str += "clone("
+                    print_str += datum.dpstr(more)
+                    print_str += ")"
+                elif field[0] == "OVS_ACTION_ATTR_SET" or \
+                     field[0] == "OVS_ACTION_ATTR_SET_MASKED":
+                    print_str += "set"
+                    field = datum
+                    mask = None
+                    if field[0] == "OVS_ACTION_ATTR_SET_MASKED":
+                        print_str += "_masked"
+                        field = datum[0]
+                        mask = datum[1]
+                    print_str += "("
+                    print_str += field.dpstr(mask, more)
+                    print_str += ")"
+                else:
+                    try:
+                        print_str += datum.dpstr(more)
+                    except:
+                        print_str += "{ATTR: %s not decoded}" % field[0]
+
+        return print_str
+
+    def parse(self, actstr):
+        totallen = len(actstr)
+        while len(actstr) != 0:
+            parsed = False
+            parencount = 0
+            if actstr.startswith("drop"):
+                # If no reason is provided, the implicit drop is used (i.e no
+                # action). If some reason is given, an explicit action is used.
+                reason = None
+                if actstr.startswith("drop("):
+                    parencount += 1
+
+                    actstr, reason = parse_extract_field(
+                        actstr,
+                        "drop(",
+                        r"([0-9]+)",
+                        lambda x: int(x, 0),
+                        False,
+                        None,
+                    )
+
+                if reason is not None:
+                    self["attrs"].append(["OVS_ACTION_ATTR_DROP", reason])
+                    parsed = True
+                else:
+                    actstr = actstr[len("drop"): ]
+                    return (totallen - len(actstr))
+
+            elif parse_starts_block(actstr, r"^(\d+)", False, True):
+                actstr, output = parse_extract_field(
+                    actstr, None, r"(\d+)", lambda x: int(x), False, "0"
+                )
+                self["attrs"].append(["OVS_ACTION_ATTR_OUTPUT", output])
+                parsed = True
+            elif parse_starts_block(actstr, "recirc(", False):
+                actstr, recircid = parse_extract_field(
+                    actstr,
+                    "recirc(",
+                    r"([0-9a-fA-Fx]+)",
+                    lambda x: int(x, 0),
+                    False,
+                    0,
+                )
+                parencount += 1
+                self["attrs"].append(["OVS_ACTION_ATTR_RECIRC", recircid])
+                parsed = True
+
+            parse_flat_map = (
+                ("ct_clear", "OVS_ACTION_ATTR_CT_CLEAR"),
+                ("pop_vlan", "OVS_ACTION_ATTR_POP_VLAN"),
+                ("pop_eth", "OVS_ACTION_ATTR_POP_ETH"),
+                ("pop_nsh", "OVS_ACTION_ATTR_POP_NSH"),
+            )
+
+            for flat_act in parse_flat_map:
+                if parse_starts_block(actstr, flat_act[0], False):
+                    actstr = actstr[len(flat_act[0]):]
+                    self["attrs"].append([flat_act[1], True])
+                    actstr = actstr[strspn(actstr, ", ") :]
+                    parsed = True
+
+            if parse_starts_block(actstr, "clone(", False):
+                parencount += 1
+                subacts = ovsactions()
+                actstr = actstr[len("clone("):]
+                parsedLen = subacts.parse(actstr)
+                lst = []
+                self["attrs"].append(("OVS_ACTION_ATTR_CLONE", subacts))
+                actstr = actstr[parsedLen:]
+                parsed = True
+            elif parse_starts_block(actstr, "set(", False):
+                parencount += 1
+                k = ovskey()
+                actstr = actstr[len("set("):]
+                actstr = k.parse(actstr, None)
+                self["attrs"].append(("OVS_ACTION_ATTR_SET", k))
+                if not actstr.startswith(")"):
+                    actstr = ")" + actstr
+                parsed = True
+            elif parse_starts_block(actstr, "set_masked(", False):
+                parencount += 1
+                k = ovskey()
+                m = ovskey()
+                actstr = actstr[len("set_masked("):]
+                actstr = k.parse(actstr, m)
+                self["attrs"].append(("OVS_ACTION_ATTR_SET_MASKED", [k, m]))
+                if not actstr.startswith(")"):
+                    actstr = ")" + actstr
+                parsed = True
+            elif parse_starts_block(actstr, "ct(", False):
+                parencount += 1
+                actstr = actstr[len("ct(") :]
+                ctact = ovsactions.ctact()
+
+                for scan in (
+                    ("commit", "OVS_CT_ATTR_COMMIT", None),
+                    ("force_commit", "OVS_CT_ATTR_FORCE_COMMIT", None),
+                    ("zone", "OVS_CT_ATTR_ZONE", int),
+                    ("mark", "OVS_CT_ATTR_MARK", int),
+                    ("helper", "OVS_CT_ATTR_HELPER", lambda x, y: str(x)),
+                    ("timeout", "OVS_CT_ATTR_TIMEOUT", lambda x, y: str(x)),
+                ):
+                    if actstr.startswith(scan[0]):
+                        actstr = actstr[len(scan[0]) :]
+                        if scan[2] is not None:
+                            if actstr[0] != "=":
+                                raise ValueError("Invalid ct attr")
+                            actstr = actstr[1:]
+                            pos = strcspn(actstr, ",)")
+                            datum = scan[2](actstr[:pos], 0)
+                            ctact["attrs"].append([scan[1], datum])
+                            actstr = actstr[pos:]
+                        else:
+                            ctact["attrs"].append([scan[1], None])
+                        actstr = actstr[strspn(actstr, ", ") :]
+                    # it seems strange to put this here, but nat() is a complex
+                    # sub-action and this lets it sit anywhere in the ct() action
+                    if actstr.startswith("nat"):
+                        actstr = actstr[3:]
+                        natact = ovsactions.ctact.natattr()
+
+                        if actstr.startswith("("):
+                            parencount += 1
+                            t = None
+                            actstr = actstr[1:]
+                            if actstr.startswith("src"):
+                                t = "OVS_NAT_ATTR_SRC"
+                                actstr = actstr[3:]
+                            elif actstr.startswith("dst"):
+                                t = "OVS_NAT_ATTR_DST"
+                                actstr = actstr[3:]
+
+                            actstr, ip_block_min = parse_extract_field(
+                                actstr, "=", r"([0-9a-fA-F\.]+)", str, False
+                            )
+                            actstr, ip_block_max = parse_extract_field(
+                                actstr, "-", r"([0-9a-fA-F\.]+)", str, False
+                            )
+
+                            actstr, proto_min = parse_extract_field(
+                                actstr, ":", r"(\d+)", int, False
+                            )
+                            actstr, proto_max = parse_extract_field(
+                                actstr, "-", r"(\d+)", int, False
+                            )
+
+                            if t is not None:
+                                natact["attrs"].append([t, None])
+
+                                if ip_block_min is not None:
+                                    natact["attrs"].append(
+                                        ["OVS_NAT_ATTR_IP_MIN", ip_block_min]
+                                    )
+                                if ip_block_max is not None:
+                                    natact["attrs"].append(
+                                        ["OVS_NAT_ATTR_IP_MAX", ip_block_max]
+                                    )
+                                if proto_min is not None:
+                                    natact["attrs"].append(
+                                        ["OVS_NAT_ATTR_PROTO_MIN", proto_min]
+                                    )
+                                if proto_max is not None:
+                                    natact["attrs"].append(
+                                        ["OVS_NAT_ATTR_PROTO_MAX", proto_max]
+                                    )
+
+                            for natscan in (
+                                ("persistent", "OVS_NAT_ATTR_PERSISTENT"),
+                                ("hash", "OVS_NAT_ATTR_PROTO_HASH"),
+                                ("random", "OVS_NAT_ATTR_PROTO_RANDOM"),
+                            ):
+                                if actstr.startswith(natscan[0]):
+                                    actstr = actstr[len(natscan[0]) :]
+                                    natact["attrs"].append([natscan[1], None])
+                                    actstr = actstr[strspn(actstr, ", ") :]
+
+                        ctact["attrs"].append(["OVS_CT_ATTR_NAT", natact])
+                        actstr = actstr[strspn(actstr, ", ") :]
+
+                self["attrs"].append(["OVS_ACTION_ATTR_CT", ctact])
+                parsed = True
+
+            elif parse_starts_block(actstr, "sample(", False):
+                sampleact = self.sample()
+                actstr = sampleact.parse(actstr[len("sample(") : ])
+                self["attrs"].append(["OVS_ACTION_ATTR_SAMPLE", sampleact])
+                parsed = True
+
+            elif parse_starts_block(actstr, "psample(", False):
+                psampleact = self.psample()
+                actstr = psampleact.parse(actstr[len("psample(") : ])
+                self["attrs"].append(["OVS_ACTION_ATTR_PSAMPLE", psampleact])
+                parsed = True
+
+            elif parse_starts_block(actstr, "userspace(", False):
+                uact = self.userspace()
+                actstr = uact.parse(actstr[len("userspace(") : ])
+                self["attrs"].append(["OVS_ACTION_ATTR_USERSPACE", uact])
+                parsed = True
+
+            elif parse_starts_block(actstr, "trunc(", False):
+                parencount += 1
+                actstr, val = parse_extract_field(
+                    actstr,
+                    "trunc(",
+                    r"([0-9]+)",
+                    int,
+                    False,
+                    None,
+                )
+                self["attrs"].append(["OVS_ACTION_ATTR_TRUNC", val])
+                parsed = True
+
+            actstr = actstr[strspn(actstr, ", ") :]
+            while parencount > 0:
+                parencount -= 1
+                actstr = actstr[strspn(actstr, " "):]
+                if len(actstr) and actstr[0] != ")":
+                    raise ValueError("Action str: '%s' unbalanced" % actstr)
+                actstr = actstr[1:]
+
+            if len(actstr) and actstr[0] == ")":
+                return (totallen - len(actstr))
+
+            actstr = actstr[strspn(actstr, ", ") :]
+
+            if not parsed:
+                raise ValueError("Action str: '%s' not supported" % actstr)
+
+        return (totallen - len(actstr))
+
+
+class ovskey(nla):
+    nla_flags = NLA_F_NESTED
+    nla_map = (
+        ("OVS_KEY_ATTR_UNSPEC", "none"),
+        ("OVS_KEY_ATTR_ENCAP", "none"),
+        ("OVS_KEY_ATTR_PRIORITY", "uint32"),
+        ("OVS_KEY_ATTR_IN_PORT", "uint32"),
+        ("OVS_KEY_ATTR_ETHERNET", "ethaddr"),
+        ("OVS_KEY_ATTR_VLAN", "uint16"),
+        ("OVS_KEY_ATTR_ETHERTYPE", "be16"),
+        ("OVS_KEY_ATTR_IPV4", "ovs_key_ipv4"),
+        ("OVS_KEY_ATTR_IPV6", "ovs_key_ipv6"),
+        ("OVS_KEY_ATTR_TCP", "ovs_key_tcp"),
+        ("OVS_KEY_ATTR_UDP", "ovs_key_udp"),
+        ("OVS_KEY_ATTR_ICMP", "ovs_key_icmp"),
+        ("OVS_KEY_ATTR_ICMPV6", "ovs_key_icmpv6"),
+        ("OVS_KEY_ATTR_ARP", "ovs_key_arp"),
+        ("OVS_KEY_ATTR_ND", "ovs_key_nd"),
+        ("OVS_KEY_ATTR_SKB_MARK", "uint32"),
+        ("OVS_KEY_ATTR_TUNNEL", "ovs_key_tunnel"),
+        ("OVS_KEY_ATTR_SCTP", "ovs_key_sctp"),
+        ("OVS_KEY_ATTR_TCP_FLAGS", "be16"),
+        ("OVS_KEY_ATTR_DP_HASH", "uint32"),
+        ("OVS_KEY_ATTR_RECIRC_ID", "uint32"),
+        ("OVS_KEY_ATTR_MPLS", "array(ovs_key_mpls)"),
+        ("OVS_KEY_ATTR_CT_STATE", "uint32"),
+        ("OVS_KEY_ATTR_CT_ZONE", "uint16"),
+        ("OVS_KEY_ATTR_CT_MARK", "uint32"),
+        ("OVS_KEY_ATTR_CT_LABELS", "none"),
+        ("OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4", "ovs_key_ct_tuple_ipv4"),
+        ("OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6", "ovs_key_ct_tuple_ipv6"),
+        ("OVS_KEY_ATTR_NSH", "none"),
+        ("OVS_KEY_ATTR_PACKET_TYPE", "none"),
+        ("OVS_KEY_ATTR_ND_EXTENSIONS", "none"),
+        ("OVS_KEY_ATTR_TUNNEL_INFO", "none"),
+        ("OVS_KEY_ATTR_IPV6_EXTENSIONS", "none"),
+    )
+
+    class ovs_key_proto(nla):
+        fields = (
+            ("src", "!H"),
+            ("dst", "!H"),
+        )
+
+        fields_map = (
+            ("src", "src", "%d", lambda x: int(x) if x else 0,
+                convert_int(16)),
+            ("dst", "dst", "%d", lambda x: int(x) if x else 0,
+                convert_int(16)),
+        )
+
+        def __init__(
+            self,
+            protostr,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            self.proto_str = protostr
+            nla.__init__(
+                self,
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+        def parse(self, flowstr, typeInst):
+            if not flowstr.startswith(self.proto_str):
+                return None, None
+
+            k = typeInst()
+            m = typeInst()
+
+            flowstr = flowstr[len(self.proto_str) :]
+            if flowstr.startswith("("):
+                flowstr = flowstr[1:]
+
+            keybits = b""
+            maskbits = b""
+            for f in self.fields_map:
+                if flowstr.startswith(f[1]):
+                    # the following assumes that the field looks
+                    # something like 'field.' where '.' is a
+                    # character that we don't exactly care about.
+                    flowstr = flowstr[len(f[1]) + 1 :]
+                    splitchar = 0
+                    for c in flowstr:
+                        if c == "," or c == ")":
+                            break
+                        splitchar += 1
+                    data = flowstr[:splitchar]
+                    flowstr = flowstr[splitchar:]
+                else:
+                    data = ""
+
+                if len(f) > 4:
+                    k[f[0]], m[f[0]] = f[4](data)
+                else:
+                    k[f[0]] = f[3](data)
+                    m[f[0]] = f[3](data)
+
+                flowstr = flowstr[strspn(flowstr, ", ") :]
+                if len(flowstr) == 0:
+                    return flowstr, k, m
+
+            flowstr = flowstr[strspn(flowstr, "), ") :]
+
+            return flowstr, k, m
+
+        def dpstr(self, masked=None, more=False):
+            outstr = self.proto_str + "("
+            first = False
+            for f in self.fields_map:
+                if first:
+                    outstr += ","
+                if masked is None:
+                    outstr += "%s=" % f[0]
+                    if isinstance(f[2], str):
+                        outstr += f[2] % self[f[1]]
+                    else:
+                        outstr += f[2](self[f[1]])
+                    first = True
+                elif more or f[3](masked[f[1]]) != 0:
+                    outstr += "%s=" % f[0]
+                    if isinstance(f[2], str):
+                        outstr += f[2] % self[f[1]]
+                    else:
+                        outstr += f[2](self[f[1]])
+                    outstr += "/"
+                    if isinstance(f[2], str):
+                        outstr += f[2] % masked[f[1]]
+                    else:
+                        outstr += f[2](masked[f[1]])
+                    first = True
+            outstr += ")"
+            return outstr
+
+    class ethaddr(ovs_key_proto):
+        fields = (
+            ("src", "!6s"),
+            ("dst", "!6s"),
+        )
+
+        fields_map = (
+            (
+                "src",
+                "src",
+                macstr,
+                lambda x: int.from_bytes(x, "big"),
+                convert_mac,
+            ),
+            (
+                "dst",
+                "dst",
+                macstr,
+                lambda x: int.from_bytes(x, "big"),
+                convert_mac,
+            ),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "eth",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_ipv4(ovs_key_proto):
+        fields = (
+            ("src", "!I"),
+            ("dst", "!I"),
+            ("proto", "B"),
+            ("tos", "B"),
+            ("ttl", "B"),
+            ("frag", "B"),
+        )
+
+        fields_map = (
+            (
+                "src",
+                "src",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            (
+                "dst",
+                "dst",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            ("proto", "proto", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("tos", "tos", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("ttl", "ttl", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+            ("frag", "frag", "%d", lambda x: int(x) if x else 0,
+                convert_int(8)),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "ipv4",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_ipv6(ovs_key_proto):
+        fields = (
+            ("src", "!16s"),
+            ("dst", "!16s"),
+            ("label", "!I"),
+            ("proto", "B"),
+            ("tclass", "B"),
+            ("hlimit", "B"),
+            ("frag", "B"),
+        )
+
+        fields_map = (
+            (
+                "src",
+                "src",
+                lambda x: str(ipaddress.IPv6Address(x)),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
+            ),
+            (
+                "dst",
+                "dst",
+                lambda x: str(ipaddress.IPv6Address(x)),
+                lambda x: ipaddress.IPv6Address(x).packed if x else 0,
+                convert_ipv6,
+            ),
+            ("label", "label", "%d", lambda x: int(x) if x else 0),
+            ("proto", "proto", "%d", lambda x: int(x) if x else 0),
+            ("tclass", "tclass", "%d", lambda x: int(x) if x else 0),
+            ("hlimit", "hlimit", "%d", lambda x: int(x) if x else 0),
+            ("frag", "frag", "%d", lambda x: int(x) if x else 0),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "ipv6",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_tcp(ovs_key_proto):
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "tcp",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_udp(ovs_key_proto):
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "udp",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_sctp(ovs_key_proto):
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "sctp",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_icmp(ovs_key_proto):
+        fields = (
+            ("type", "B"),
+            ("code", "B"),
+        )
+
+        fields_map = (
+            ("type", "type", "%d", lambda x: int(x) if x else 0),
+            ("code", "code", "%d", lambda x: int(x) if x else 0),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "icmp",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_icmpv6(ovs_key_icmp):
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "icmpv6",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_arp(ovs_key_proto):
+        fields = (
+            ("sip", "!I"),
+            ("tip", "!I"),
+            ("op", "!H"),
+            ("sha", "!6s"),
+            ("tha", "!6s"),
+            ("pad", "xx"),
+        )
+
+        fields_map = (
+            (
+                "sip",
+                "sip",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            (
+                "tip",
+                "tip",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            ("op", "op", "%d", lambda x: int(x) if x else 0),
+            (
+                "sha",
+                "sha",
+                macstr,
+                lambda x: int.from_bytes(x, "big"),
+                convert_mac,
+            ),
+            (
+                "tha",
+                "tha",
+                macstr,
+                lambda x: int.from_bytes(x, "big"),
+                convert_mac,
+            ),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "arp",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_nd(ovs_key_proto):
+        fields = (
+            ("target", "!16s"),
+            ("sll", "!6s"),
+            ("tll", "!6s"),
+        )
+
+        fields_map = (
+            (
+                "target",
+                "target",
+                lambda x: str(ipaddress.IPv6Address(x)),
+                convert_ipv6,
+            ),
+            ("sll", "sll", macstr, lambda x: int.from_bytes(x, "big")),
+            ("tll", "tll", macstr, lambda x: int.from_bytes(x, "big")),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "nd",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_ct_tuple_ipv4(ovs_key_proto):
+        fields = (
+            ("src", "!I"),
+            ("dst", "!I"),
+            ("tp_src", "!H"),
+            ("tp_dst", "!H"),
+            ("proto", "B"),
+        )
+
+        fields_map = (
+            (
+                "src",
+                "src",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            (
+                "dst",
+                "dst",
+                lambda x: str(ipaddress.IPv4Address(x)),
+                int,
+                convert_ipv4,
+            ),
+            ("tp_src", "tp_src", "%d", int),
+            ("tp_dst", "tp_dst", "%d", int),
+            ("proto", "proto", "%d", int),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "ct_tuple4",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_ct_tuple_ipv6(nla):
+        fields = (
+            ("src", "!16s"),
+            ("dst", "!16s"),
+            ("tp_src", "!H"),
+            ("tp_dst", "!H"),
+            ("proto", "B"),
+        )
+
+        fields_map = (
+            (
+                "src",
+                "src",
+                lambda x: str(ipaddress.IPv6Address(x)),
+                convert_ipv6,
+            ),
+            (
+                "dst",
+                "dst",
+                lambda x: str(ipaddress.IPv6Address(x)),
+                convert_ipv6,
+            ),
+            ("tp_src", "tp_src", "%d", int),
+            ("tp_dst", "tp_dst", "%d", int),
+            ("proto", "proto", "%d", int),
+        )
+
+        def __init__(
+            self,
+            data=None,
+            offset=None,
+            parent=None,
+            length=None,
+            init=None,
+        ):
+            ovskey.ovs_key_proto.__init__(
+                self,
+                "ct_tuple6",
+                data=data,
+                offset=offset,
+                parent=parent,
+                length=length,
+                init=init,
+            )
+
+    class ovs_key_tunnel(nla):
+        nla_flags = NLA_F_NESTED
+
+        nla_map = (
+            ("OVS_TUNNEL_KEY_ATTR_ID", "be64"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_SRC", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_DST", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_TOS", "uint8"),
+            ("OVS_TUNNEL_KEY_ATTR_TTL", "uint8"),
+            ("OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_CSUM", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_OAM", "flag"),
+            ("OVS_TUNNEL_KEY_ATTR_GENEVE_OPTS", "array(uint32)"),
+            ("OVS_TUNNEL_KEY_ATTR_TP_SRC", "be16"),
+            ("OVS_TUNNEL_KEY_ATTR_TP_DST", "be16"),
+            ("OVS_TUNNEL_KEY_ATTR_VXLAN_OPTS", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV6_SRC", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV6_DST", "ipaddr"),
+            ("OVS_TUNNEL_KEY_ATTR_PAD", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_ERSPAN_OPTS", "none"),
+            ("OVS_TUNNEL_KEY_ATTR_IPV4_INFO_BRIDGE", "flag"),
+        )
+
+        def parse(self, flowstr, mask=None):
+            if not flowstr.startswith("tunnel("):
+                return None, None
+
+            k = ovskey.ovs_key_tunnel()
+            if mask is not None:
+                mask = ovskey.ovs_key_tunnel()
+
+            flowstr = flowstr[len("tunnel("):]
+
+            v6_address = None
+
+            fields = [
+                ("tun_id=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_ID",
+                 0xffffffffffffffff, None, None),
+
+                ("src=", r"([0-9a-fA-F\.]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV4_SRC", "255.255.255.255", "0.0.0.0",
+                 False),
+                ("dst=", r"([0-9a-fA-F\.]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV4_DST", "255.255.255.255", "0.0.0.0",
+                 False),
+
+                ("ipv6_src=", r"([0-9a-fA-F:]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV6_SRC",
+                 "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", "::", True),
+                ("ipv6_dst=", r"([0-9a-fA-F:]+)", str,
+                 "OVS_TUNNEL_KEY_ATTR_IPV6_DST",
+                 "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", "::", True),
+
+                ("tos=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TOS", 255, 0,
+                 None),
+                ("ttl=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TTL", 255, 0,
+                 None),
+
+                ("tp_src=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TP_SRC",
+                 65535, 0, None),
+                ("tp_dst=", r"(\d+)", int, "OVS_TUNNEL_KEY_ATTR_TP_DST",
+                 65535, 0, None),
+            ]
+
+            forced_include = ["OVS_TUNNEL_KEY_ATTR_TTL"]
+
+            for prefix, regex, typ, attr_name, mask_val, default_val, v46_flag in fields:
+                flowstr, value = parse_extract_field(flowstr, prefix, regex, typ, False)
+                if not attr_name:
+                    raise Exception("Bad list value in tunnel fields")
+
+                if value is None and attr_name in forced_include:
+                    value = default_val
+                    mask_val = default_val
+
+                if value is not None:
+                    if v46_flag is not None:
+                        if v6_address is None:
+                            v6_address = v46_flag
+                        if v46_flag != v6_address:
+                            raise ValueError("Cannot mix v6 and v4 addresses")
+                    k["attrs"].append([attr_name, value])
+                    if mask is not None:
+                        mask["attrs"].append([attr_name, mask_val])
+                else:
+                    if v46_flag is not None:
+                        if v6_address is None or v46_flag != v6_address:
+                            continue
+                    if mask is not None:
+                        mask["attrs"].append([attr_name, default_val])
+
+            if k["attrs"][0][0] != "OVS_TUNNEL_KEY_ATTR_ID":
+                raise ValueError("Needs a tunid set")
+
+            if flowstr.startswith("flags("):
+                flowstr = flowstr[len("flags("):]
+                flagspos = flowstr.find(")")
+                flags = flowstr[:flagspos]
+                flowstr = flowstr[flagspos + 1:]
+
+                flag_attrs = {
+                    "df": "OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT",
+                    "csum": "OVS_TUNNEL_KEY_ATTR_CSUM",
+                    "oam": "OVS_TUNNEL_KEY_ATTR_OAM"
+                }
+
+                for flag in flags.split("|"):
+                    if flag in flag_attrs:
+                        k["attrs"].append([flag_attrs[flag], True])
+                        if mask is not None:
+                            mask["attrs"].append([flag_attrs[flag], True])
+
+            flowstr = flowstr[strspn(flowstr, ", ") :]
+            return flowstr, k, mask
+
+        def dpstr(self, mask=None, more=False):
+            print_str = "tunnel("
+
+            flagsattrs = []
+            for k in self["attrs"]:
+                noprint = False
+                if k[0] == "OVS_TUNNEL_KEY_ATTR_ID":
+                    print_str += "tun_id=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV4_SRC":
+                    print_str += "src=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV4_DST":
+                    print_str += "dst=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV6_SRC":
+                    print_str += "ipv6_src=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_IPV6_DST":
+                    print_str += "ipv6_dst=%s" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TOS":
+                    print_str += "tos=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TTL":
+                    print_str += "ttl=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TP_SRC":
+                    print_str += "tp_src=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_TP_DST":
+                    print_str += "tp_dst=%d" % k[1]
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT":
+                    noprint = True
+                    flagsattrs.append("df")
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_CSUM":
+                    noprint = True
+                    flagsattrs.append("csum")
+                elif k[0] == "OVS_TUNNEL_KEY_ATTR_OAM":
+                    noprint = True
+                    flagsattrs.append("oam")
+
+                if not noprint:
+                    print_str += ","
+
+            if len(flagsattrs):
+                print_str += "flags(" + "|".join(flagsattrs) + ")"
+            print_str += ")"
+            return print_str
+
+    class ovs_key_mpls(nla):
+        fields = (("lse", ">I"),)
+
+    def parse(self, flowstr, mask=None):
+        for field in (
+            ("OVS_KEY_ATTR_PRIORITY", "skb_priority", intparse),
+            ("OVS_KEY_ATTR_SKB_MARK", "skb_mark", intparse),
+            ("OVS_KEY_ATTR_RECIRC_ID", "recirc_id", intparse),
+            ("OVS_KEY_ATTR_TUNNEL", "tunnel", ovskey.ovs_key_tunnel),
+            ("OVS_KEY_ATTR_DP_HASH", "dp_hash", intparse),
+            ("OVS_KEY_ATTR_CT_STATE", "ct_state", parse_ct_state),
+            ("OVS_KEY_ATTR_CT_ZONE", "ct_zone", intparse),
+            ("OVS_KEY_ATTR_CT_MARK", "ct_mark", intparse),
+            ("OVS_KEY_ATTR_IN_PORT", "in_port", intparse),
+            (
+                "OVS_KEY_ATTR_ETHERNET",
+                "eth",
+                ovskey.ethaddr,
+            ),
+            (
+                "OVS_KEY_ATTR_ETHERTYPE",
+                "eth_type",
+                lambda x: intparse(x, "0xffff"),
+            ),
+            (
+                "OVS_KEY_ATTR_IPV4",
+                "ipv4",
+                ovskey.ovs_key_ipv4,
+            ),
+            (
+                "OVS_KEY_ATTR_IPV6",
+                "ipv6",
+                ovskey.ovs_key_ipv6,
+            ),
+            (
+                "OVS_KEY_ATTR_ARP",
+                "arp",
+                ovskey.ovs_key_arp,
+            ),
+            (
+                "OVS_KEY_ATTR_TCP",
+                "tcp",
+                ovskey.ovs_key_tcp,
+            ),
+            (
+                "OVS_KEY_ATTR_UDP",
+                "udp",
+                ovskey.ovs_key_udp,
+            ),
+            (
+                "OVS_KEY_ATTR_ICMP",
+                "icmp",
+                ovskey.ovs_key_icmp,
+            ),
+            (
+                "OVS_KEY_ATTR_TCP_FLAGS",
+                "tcp_flags",
+                lambda x: parse_flags(x, None),
+            ),
+        ):
+            fld = field[1] + "("
+            if not flowstr.startswith(fld):
+                continue
+
+            if not isinstance(field[2], types.FunctionType):
+                nk = field[2]()
+                flowstr, k, m = nk.parse(flowstr, field[2])
+            else:
+                flowstr = flowstr[len(fld) :]
+                flowstr, k, m = field[2](flowstr)
+
+            if m and mask is not None:
+                mask["attrs"].append([field[0], m])
+            self["attrs"].append([field[0], k])
+
+            flowstr = flowstr[strspn(flowstr, "), ") :]
+
+        return flowstr
+
+    def dpstr(self, mask=None, more=False):
+        print_str = ""
+
+        for field in (
+            (
+                "OVS_KEY_ATTR_PRIORITY",
+                "skb_priority",
+                "%d",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_SKB_MARK",
+                "skb_mark",
+                "%d",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_RECIRC_ID",
+                "recirc_id",
+                "0x%08X",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_DP_HASH",
+                "dp_hash",
+                "0x%08X",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_TUNNEL",
+                "tunnel",
+                None,
+                False,
+                False,
+            ),
+            (
+                "OVS_KEY_ATTR_CT_STATE",
+                "ct_state",
+                "0x%04x",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_CT_ZONE",
+                "ct_zone",
+                "0x%04x",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_CT_MARK",
+                "ct_mark",
+                "0x%08x",
+                lambda x: False,
+                True,
+            ),
+            (
+                "OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV4",
+                None,
+                None,
+                False,
+                False,
+            ),
+            (
+                "OVS_KEY_ATTR_CT_ORIG_TUPLE_IPV6",
+                None,
+                None,
+                False,
+                False,
+            ),
+            (
+                "OVS_KEY_ATTR_IN_PORT",
+                "in_port",
+                "%d",
+                lambda x: True,
+                True,
+            ),
+            ("OVS_KEY_ATTR_ETHERNET", None, None, False, False),
+            (
+                "OVS_KEY_ATTR_ETHERTYPE",
+                "eth_type",
+                "0x%04x",
+                lambda x: int(x) == 0xFFFF,
+                True,
+            ),
+            ("OVS_KEY_ATTR_IPV4", None, None, False, False),
+            ("OVS_KEY_ATTR_IPV6", None, None, False, False),
+            ("OVS_KEY_ATTR_ARP", None, None, False, False),
+            ("OVS_KEY_ATTR_TCP", None, None, False, False),
+            (
+                "OVS_KEY_ATTR_TCP_FLAGS",
+                "tcp_flags",
+                "0x%04x",
+                lambda x: False,
+                True,
+            ),
+            ("OVS_KEY_ATTR_UDP", None, None, False, False),
+            ("OVS_KEY_ATTR_SCTP", None, None, False, False),
+            ("OVS_KEY_ATTR_ICMP", None, None, False, False),
+            ("OVS_KEY_ATTR_ICMPV6", None, None, False, False),
+            ("OVS_KEY_ATTR_ND", None, None, False, False),
+        ):
+            v = self.get_attr(field[0])
+            if v is not None:
+                m = None if mask is None else mask.get_attr(field[0])
+                if field[4] is False:
+                    print_str += v.dpstr(m, more)
+                    print_str += ","
+                else:
+                    if m is None or field[3](m):
+                        print_str += field[1] + "("
+                        print_str += field[2] % v
+                        print_str += "),"
+                    elif more or m != 0:
+                        print_str += field[1] + "("
+                        print_str += (field[2] % v) + "/" + (field[2] % m)
+                        print_str += "),"
+
+        return print_str
+
+
+class OvsPacket(GenericNetlinkSocket):
+    OVS_PACKET_CMD_MISS = 1  # Flow table miss
+    OVS_PACKET_CMD_ACTION = 2  # USERSPACE action
+    OVS_PACKET_CMD_EXECUTE = 3  # Apply actions to packet
+
+    class ovs_packet_msg(ovs_dp_msg):
+        nla_map = (
+            ("OVS_PACKET_ATTR_UNSPEC", "none"),
+            ("OVS_PACKET_ATTR_PACKET", "array(uint8)"),
+            ("OVS_PACKET_ATTR_KEY", "ovskey"),
+            ("OVS_PACKET_ATTR_ACTIONS", "ovsactions"),
+            ("OVS_PACKET_ATTR_USERDATA", "none"),
+            ("OVS_PACKET_ATTR_EGRESS_TUN_KEY", "none"),
+            ("OVS_PACKET_ATTR_UNUSED1", "none"),
+            ("OVS_PACKET_ATTR_UNUSED2", "none"),
+            ("OVS_PACKET_ATTR_PROBE", "none"),
+            ("OVS_PACKET_ATTR_MRU", "uint16"),
+            ("OVS_PACKET_ATTR_LEN", "uint32"),
+            ("OVS_PACKET_ATTR_HASH", "uint64"),
+        )
+
+    def __init__(self):
+        GenericNetlinkSocket.__init__(self)
+        self.bind(OVS_PACKET_FAMILY, OvsPacket.ovs_packet_msg)
+
+    def upcall_handler(self, up=None):
+        print("listening on upcall packet handler:", self.epid)
+        while True:
+            try:
+                msgs = self.get()
+                for msg in msgs:
+                    if not up:
+                        continue
+                    if msg["cmd"] == OvsPacket.OVS_PACKET_CMD_MISS:
+                        up.miss(msg)
+                    elif msg["cmd"] == OvsPacket.OVS_PACKET_CMD_ACTION:
+                        up.action(msg)
+                    elif msg["cmd"] == OvsPacket.OVS_PACKET_CMD_EXECUTE:
+                        up.execute(msg)
+                    else:
+                        print("Unknown cmd: %d" % msg["cmd"])
+            except NetlinkError as ne:
+                raise ne
+
+
+class OvsDatapath(GenericNetlinkSocket):
+    OVS_DP_F_VPORT_PIDS = 1 << 1
+    OVS_DP_F_DISPATCH_UPCALL_PER_CPU = 1 << 3
+
+    class dp_cmd_msg(ovs_dp_msg):
+        """
+        Message class that will be used to communicate with the kernel module.
+        """
+
+        nla_map = (
+            ("OVS_DP_ATTR_UNSPEC", "none"),
+            ("OVS_DP_ATTR_NAME", "asciiz"),
+            ("OVS_DP_ATTR_UPCALL_PID", "array(uint32)"),
+            ("OVS_DP_ATTR_STATS", "dpstats"),
+            ("OVS_DP_ATTR_MEGAFLOW_STATS", "megaflowstats"),
+            ("OVS_DP_ATTR_USER_FEATURES", "uint32"),
+            ("OVS_DP_ATTR_PAD", "none"),
+            ("OVS_DP_ATTR_MASKS_CACHE_SIZE", "uint32"),
+            ("OVS_DP_ATTR_PER_CPU_PIDS", "array(uint32)"),
+        )
+
+        class dpstats(nla):
+            fields = (
+                ("hit", "=Q"),
+                ("missed", "=Q"),
+                ("lost", "=Q"),
+                ("flows", "=Q"),
+            )
+
+        class megaflowstats(nla):
+            fields = (
+                ("mask_hit", "=Q"),
+                ("masks", "=I"),
+                ("padding", "=I"),
+                ("cache_hits", "=Q"),
+                ("pad1", "=Q"),
+            )
+
+    def __init__(self):
+        GenericNetlinkSocket.__init__(self)
+        self.bind(OVS_DATAPATH_FAMILY, OvsDatapath.dp_cmd_msg)
+
+    def info(self, dpname, ifindex=0):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_GET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = ifindex
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+    def create(
+        self, dpname, shouldUpcall=False, versionStr=None, p=OvsPacket()
+    ):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_NEW
+        if versionStr is None:
+            msg["version"] = OVS_DATAPATH_VERSION
+        else:
+            msg["version"] = int(versionStr.split(":")[0], 0)
+        msg["reserved"] = 0
+        msg["dpifindex"] = 0
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        dpfeatures = 0
+        if versionStr is not None and versionStr.find(":") != -1:
+            dpfeatures = int(versionStr.split(":")[1], 0)
+        else:
+            if versionStr is None or versionStr.find(":") == -1:
+                dpfeatures |= OvsDatapath.OVS_DP_F_DISPATCH_UPCALL_PER_CPU
+                dpfeatures &= ~OvsDatapath.OVS_DP_F_VPORT_PIDS
+
+            nproc = multiprocessing.cpu_count()
+            procarray = []
+            for i in range(1, nproc):
+                procarray += [int(p.epid)]
+            msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", procarray])
+        msg["attrs"].append(["OVS_DP_ATTR_USER_FEATURES", dpfeatures])
+        if not shouldUpcall:
+            msg["attrs"].append(["OVS_DP_ATTR_UPCALL_PID", [0]])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.EEXIST:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+    def destroy(self, dpname):
+        msg = OvsDatapath.dp_cmd_msg()
+        msg["cmd"] = OVS_DP_CMD_DEL
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = 0
+        msg["attrs"].append(["OVS_DP_ATTR_NAME", dpname])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+
+        return reply
+
+
+class OvsVport(GenericNetlinkSocket):
+    OVS_VPORT_TYPE_NETDEV = 1
+    OVS_VPORT_TYPE_INTERNAL = 2
+    OVS_VPORT_TYPE_GRE = 3
+    OVS_VPORT_TYPE_VXLAN = 4
+    OVS_VPORT_TYPE_GENEVE = 5
+
+    class ovs_vport_msg(ovs_dp_msg):
+        nla_map = (
+            ("OVS_VPORT_ATTR_UNSPEC", "none"),
+            ("OVS_VPORT_ATTR_PORT_NO", "uint32"),
+            ("OVS_VPORT_ATTR_TYPE", "uint32"),
+            ("OVS_VPORT_ATTR_NAME", "asciiz"),
+            ("OVS_VPORT_ATTR_OPTIONS", "vportopts"),
+            ("OVS_VPORT_ATTR_UPCALL_PID", "array(uint32)"),
+            ("OVS_VPORT_ATTR_STATS", "vportstats"),
+            ("OVS_VPORT_ATTR_PAD", "none"),
+            ("OVS_VPORT_ATTR_IFINDEX", "uint32"),
+            ("OVS_VPORT_ATTR_NETNSID", "uint32"),
+        )
+
+        class vportopts(nla):
+            nla_map = (
+                ("OVS_TUNNEL_ATTR_UNSPEC", "none"),
+                ("OVS_TUNNEL_ATTR_DST_PORT", "uint16"),
+                ("OVS_TUNNEL_ATTR_EXTENSION", "none"),
+            )
+
+        class vportstats(nla):
+            fields = (
+                ("rx_packets", "=Q"),
+                ("tx_packets", "=Q"),
+                ("rx_bytes", "=Q"),
+                ("tx_bytes", "=Q"),
+                ("rx_errors", "=Q"),
+                ("tx_errors", "=Q"),
+                ("rx_dropped", "=Q"),
+                ("tx_dropped", "=Q"),
+            )
+
+    def type_to_str(vport_type):
+        if vport_type == OvsVport.OVS_VPORT_TYPE_NETDEV:
+            return "netdev"
+        elif vport_type == OvsVport.OVS_VPORT_TYPE_INTERNAL:
+            return "internal"
+        elif vport_type == OvsVport.OVS_VPORT_TYPE_GRE:
+            return "gre"
+        elif vport_type == OvsVport.OVS_VPORT_TYPE_VXLAN:
+            return "vxlan"
+        elif vport_type == OvsVport.OVS_VPORT_TYPE_GENEVE:
+            return "geneve"
+        raise ValueError("Unknown vport type:%d" % vport_type)
+
+    def str_to_type(vport_type):
+        if vport_type == "netdev":
+            return OvsVport.OVS_VPORT_TYPE_NETDEV
+        elif vport_type == "internal":
+            return OvsVport.OVS_VPORT_TYPE_INTERNAL
+        elif vport_type == "gre":
+            return OvsVport.OVS_VPORT_TYPE_INTERNAL
+        elif vport_type == "vxlan":
+            return OvsVport.OVS_VPORT_TYPE_VXLAN
+        elif vport_type == "geneve":
+            return OvsVport.OVS_VPORT_TYPE_GENEVE
+        raise ValueError("Unknown vport type: '%s'" % vport_type)
+
+    def __init__(self, packet=OvsPacket()):
+        GenericNetlinkSocket.__init__(self)
+        self.bind(OVS_VPORT_FAMILY, OvsVport.ovs_vport_msg)
+        self.upcall_packet = packet
+
+    def info(self, vport_name, dpifindex=0, portno=None):
+        msg = OvsVport.ovs_vport_msg()
+
+        msg["cmd"] = OVS_VPORT_CMD_GET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpifindex
+
+        if portno is None:
+            msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_name])
+        else:
+            msg["attrs"].append(["OVS_VPORT_ATTR_PORT_NO", portno])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+        return reply
+
+    def attach(self, dpindex, vport_ifname, ptype, dport, lwt):
+        msg = OvsVport.ovs_vport_msg()
+
+        msg["cmd"] = OVS_VPORT_CMD_NEW
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpindex
+        port_type = OvsVport.str_to_type(ptype)
+
+        msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname])
+        msg["attrs"].append(
+            ["OVS_VPORT_ATTR_UPCALL_PID", [self.upcall_packet.epid]]
+        )
+
+        TUNNEL_DEFAULTS = [("geneve", 6081),
+                           ("vxlan", 4789)]
+
+        for tnl in TUNNEL_DEFAULTS:
+            if ptype == tnl[0]:
+                if not dport:
+                    dport = tnl[1]
+
+                if not lwt:
+                    vportopt = OvsVport.ovs_vport_msg.vportopts()
+                    vportopt["attrs"].append(
+                        ["OVS_TUNNEL_ATTR_DST_PORT", socket.htons(dport)]
+                    )
+                    msg["attrs"].append(
+                        ["OVS_VPORT_ATTR_OPTIONS", vportopt]
+                    )
+                else:
+                    port_type = OvsVport.OVS_VPORT_TYPE_NETDEV
+                    ipr = pyroute2.iproute.IPRoute()
+
+                    if tnl[0] == "geneve":
+                        ipr.link("add", ifname=vport_ifname, kind=tnl[0],
+                                 geneve_port=dport,
+                                 geneve_collect_metadata=True,
+                                 geneve_udp_zero_csum6_rx=1)
+                    elif tnl[0] == "vxlan":
+                        ipr.link("add", ifname=vport_ifname, kind=tnl[0],
+                                 vxlan_learning=0, vxlan_collect_metadata=1,
+                                 vxlan_udp_zero_csum6_rx=1, vxlan_port=dport)
+                break
+        msg["attrs"].append(["OVS_VPORT_ATTR_TYPE", port_type])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.EEXIST:
+                reply = None
+            else:
+                raise ne
+        return reply
+
+    def reset_upcall(self, dpindex, vport_ifname, p=None):
+        msg = OvsVport.ovs_vport_msg()
+
+        msg["cmd"] = OVS_VPORT_CMD_SET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpindex
+        msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname])
+
+        if p == None:
+            p = self.upcall_packet
+        else:
+            self.upcall_packet = p
+
+        msg["attrs"].append(["OVS_VPORT_ATTR_UPCALL_PID", [p.epid]])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            raise ne
+        return reply
+
+    def detach(self, dpindex, vport_ifname):
+        msg = OvsVport.ovs_vport_msg()
+
+        msg["cmd"] = OVS_VPORT_CMD_DEL
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpindex
+        msg["attrs"].append(["OVS_VPORT_ATTR_NAME", vport_ifname])
+
+        try:
+            reply = self.nlm_request(
+                msg, msg_type=self.prid, msg_flags=NLM_F_REQUEST | NLM_F_ACK
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            if ne.code == errno.ENODEV:
+                reply = None
+            else:
+                raise ne
+        return reply
+
+    def upcall_handler(self, handler=None):
+        self.upcall_packet.upcall_handler(handler)
+
+
+class OvsFlow(GenericNetlinkSocket):
+    class ovs_flow_msg(ovs_dp_msg):
+        nla_map = (
+            ("OVS_FLOW_ATTR_UNSPEC", "none"),
+            ("OVS_FLOW_ATTR_KEY", "ovskey"),
+            ("OVS_FLOW_ATTR_ACTIONS", "ovsactions"),
+            ("OVS_FLOW_ATTR_STATS", "flowstats"),
+            ("OVS_FLOW_ATTR_TCP_FLAGS", "uint8"),
+            ("OVS_FLOW_ATTR_USED", "uint64"),
+            ("OVS_FLOW_ATTR_CLEAR", "none"),
+            ("OVS_FLOW_ATTR_MASK", "ovskey"),
+            ("OVS_FLOW_ATTR_PROBE", "none"),
+            ("OVS_FLOW_ATTR_UFID", "array(uint32)"),
+            ("OVS_FLOW_ATTR_UFID_FLAGS", "uint32"),
+        )
+
+        class flowstats(nla):
+            fields = (
+                ("packets", "=Q"),
+                ("bytes", "=Q"),
+            )
+
+        def dpstr(self, more=False):
+            ufid = self.get_attr("OVS_FLOW_ATTR_UFID")
+            ufid_str = ""
+            if ufid is not None:
+                ufid_str = (
+                    "ufid:{:08x}-{:04x}-{:04x}-{:04x}-{:04x}{:08x}".format(
+                        ufid[0],
+                        ufid[1] >> 16,
+                        ufid[1] & 0xFFFF,
+                        ufid[2] >> 16,
+                        ufid[2] & 0,
+                        ufid[3],
+                    )
+                )
+
+            key_field = self.get_attr("OVS_FLOW_ATTR_KEY")
+            keymsg = None
+            if key_field is not None:
+                keymsg = key_field
+
+            mask_field = self.get_attr("OVS_FLOW_ATTR_MASK")
+            maskmsg = None
+            if mask_field is not None:
+                maskmsg = mask_field
+
+            acts_field = self.get_attr("OVS_FLOW_ATTR_ACTIONS")
+            actsmsg = None
+            if acts_field is not None:
+                actsmsg = acts_field
+
+            print_str = ""
+
+            if more:
+                print_str += ufid_str + ","
+
+            if keymsg is not None:
+                print_str += keymsg.dpstr(maskmsg, more)
+
+            stats = self.get_attr("OVS_FLOW_ATTR_STATS")
+            if stats is None:
+                print_str += " packets:0, bytes:0,"
+            else:
+                print_str += " packets:%d, bytes:%d," % (
+                    stats["packets"],
+                    stats["bytes"],
+                )
+
+            used = self.get_attr("OVS_FLOW_ATTR_USED")
+            print_str += " used:"
+            if used is None:
+                print_str += "never,"
+            else:
+                used_time = int(used)
+                cur_time_sec = time.clock_gettime(time.CLOCK_MONOTONIC)
+                used_time = (cur_time_sec * 1000) - used_time
+                print_str += "{}s,".format(used_time / 1000)
+
+            print_str += " actions:"
+            if (
+                actsmsg is None
+                or "attrs" not in actsmsg
+                or len(actsmsg["attrs"]) == 0
+            ):
+                print_str += "drop"
+            else:
+                print_str += actsmsg.dpstr(more)
+
+            return print_str
+
+        def parse(self, flowstr, actstr, dpidx=0):
+            OVS_UFID_F_OMIT_KEY = 1 << 0
+            OVS_UFID_F_OMIT_MASK = 1 << 1
+            OVS_UFID_F_OMIT_ACTIONS = 1 << 2
+
+            self["cmd"] = 0
+            self["version"] = 0
+            self["reserved"] = 0
+            self["dpifindex"] = 0
+
+            if flowstr.startswith("ufid:"):
+                count = 5
+                while flowstr[count] != ",":
+                    count += 1
+                ufidstr = flowstr[5:count]
+                flowstr = flowstr[count + 1 :]
+            else:
+                ufidstr = str(uuid.uuid4())
+            uuidRawObj = uuid.UUID(ufidstr).fields
+
+            self["attrs"].append(
+                [
+                    "OVS_FLOW_ATTR_UFID",
+                    [
+                        uuidRawObj[0],
+                        uuidRawObj[1] << 16 | uuidRawObj[2],
+                        uuidRawObj[3] << 24
+                        | uuidRawObj[4] << 16
+                        | uuidRawObj[5] & (0xFF << 32) >> 32,
+                        uuidRawObj[5] & (0xFFFFFFFF),
+                    ],
+                ]
+            )
+            self["attrs"].append(
+                [
+                    "OVS_FLOW_ATTR_UFID_FLAGS",
+                    int(
+                        OVS_UFID_F_OMIT_KEY
+                        | OVS_UFID_F_OMIT_MASK
+                        | OVS_UFID_F_OMIT_ACTIONS
+                    ),
+                ]
+            )
+
+            k = ovskey()
+            m = ovskey()
+            k.parse(flowstr, m)
+            self["attrs"].append(["OVS_FLOW_ATTR_KEY", k])
+            self["attrs"].append(["OVS_FLOW_ATTR_MASK", m])
+
+            a = ovsactions()
+            a.parse(actstr)
+            self["attrs"].append(["OVS_FLOW_ATTR_ACTIONS", a])
+
+    def __init__(self):
+        GenericNetlinkSocket.__init__(self)
+
+        self.bind(OVS_FLOW_FAMILY, OvsFlow.ovs_flow_msg)
+
+    def add_flow(self, dpifindex, flowmsg):
+        """
+        Send a new flow message to the kernel.
+
+        dpifindex should be a valid datapath obtained by calling
+        into the OvsDatapath lookup
+
+        flowmsg is a flow object obtained by calling a dpparse
+        """
+
+        flowmsg["cmd"] = OVS_FLOW_CMD_NEW
+        flowmsg["version"] = OVS_DATAPATH_VERSION
+        flowmsg["reserved"] = 0
+        flowmsg["dpifindex"] = dpifindex
+
+        try:
+            reply = self.nlm_request(
+                flowmsg,
+                msg_type=self.prid,
+                msg_flags=NLM_F_REQUEST | NLM_F_ACK,
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            print(flowmsg)
+            raise ne
+        return reply
+
+    def del_flows(self, dpifindex):
+        """
+        Send a del message to the kernel that will drop all flows.
+
+        dpifindex should be a valid datapath obtained by calling
+        into the OvsDatapath lookup
+        """
+
+        flowmsg = OvsFlow.ovs_flow_msg()
+        flowmsg["cmd"] = OVS_FLOW_CMD_DEL
+        flowmsg["version"] = OVS_DATAPATH_VERSION
+        flowmsg["reserved"] = 0
+        flowmsg["dpifindex"] = dpifindex
+
+        try:
+            reply = self.nlm_request(
+                flowmsg,
+                msg_type=self.prid,
+                msg_flags=NLM_F_REQUEST | NLM_F_ACK,
+            )
+            reply = reply[0]
+        except NetlinkError as ne:
+            print(flowmsg)
+            raise ne
+        return reply
+
+    def dump(self, dpifindex, flowspec=None):
+        """
+        Returns a list of messages containing flows.
+
+        dpifindex should be a valid datapath obtained by calling
+        into the OvsDatapath lookup
+
+        flowpsec is a string which represents a flow in the dpctl
+        format.
+        """
+        msg = OvsFlow.ovs_flow_msg()
+
+        msg["cmd"] = OVS_FLOW_CMD_GET
+        msg["version"] = OVS_DATAPATH_VERSION
+        msg["reserved"] = 0
+        msg["dpifindex"] = dpifindex
+
+        msg_flags = NLM_F_REQUEST | NLM_F_ACK
+        if flowspec is None:
+            msg_flags |= NLM_F_DUMP
+        rep = None
+
+        try:
+            rep = self.nlm_request(
+                msg,
+                msg_type=self.prid,
+                msg_flags=msg_flags,
+            )
+        except NetlinkError as ne:
+            raise ne
+        return rep
+
+    def miss(self, packetmsg):
+        seq = packetmsg["header"]["sequence_number"]
+        keystr = "(none)"
+        key_field = packetmsg.get_attr("OVS_PACKET_ATTR_KEY")
+        if key_field is not None:
+            keystr = key_field.dpstr(None, True)
+
+        pktdata = packetmsg.get_attr("OVS_PACKET_ATTR_PACKET")
+        pktpres = "yes" if pktdata is not None else "no"
+
+        print("MISS upcall[%d/%s]: %s" % (seq, pktpres, keystr), flush=True)
+
+    def execute(self, packetmsg):
+        print("userspace execute command", flush=True)
+
+    def action(self, packetmsg):
+        print("userspace action command", flush=True)
+
+
+class psample_sample(genlmsg):
+    nla_map = (
+        ("PSAMPLE_ATTR_IIFINDEX", "none"),
+        ("PSAMPLE_ATTR_OIFINDEX", "none"),
+        ("PSAMPLE_ATTR_ORIGSIZE", "none"),
+        ("PSAMPLE_ATTR_SAMPLE_GROUP", "uint32"),
+        ("PSAMPLE_ATTR_GROUP_SEQ", "none"),
+        ("PSAMPLE_ATTR_SAMPLE_RATE", "uint32"),
+        ("PSAMPLE_ATTR_DATA", "array(uint8)"),
+        ("PSAMPLE_ATTR_GROUP_REFCOUNT", "none"),
+        ("PSAMPLE_ATTR_TUNNEL", "none"),
+        ("PSAMPLE_ATTR_PAD", "none"),
+        ("PSAMPLE_ATTR_OUT_TC", "none"),
+        ("PSAMPLE_ATTR_OUT_TC_OCC", "none"),
+        ("PSAMPLE_ATTR_LATENCY", "none"),
+        ("PSAMPLE_ATTR_TIMESTAMP", "none"),
+        ("PSAMPLE_ATTR_PROTO", "none"),
+        ("PSAMPLE_ATTR_USER_COOKIE", "array(uint8)"),
+    )
+
+    def dpstr(self):
+        fields = []
+        data = ""
+        for (attr, value) in self["attrs"]:
+            if attr == "PSAMPLE_ATTR_SAMPLE_GROUP":
+                fields.append("group:%d" % value)
+            if attr == "PSAMPLE_ATTR_SAMPLE_RATE":
+                fields.append("rate:%d" % value)
+            if attr == "PSAMPLE_ATTR_USER_COOKIE":
+                value = "".join(format(x, "02x") for x in value)
+                fields.append("cookie:%s" % value)
+            if attr == "PSAMPLE_ATTR_DATA" and len(value) > 0:
+                data = "data:%s" % "".join(format(x, "02x") for x in value)
+
+        return ("%s %s" % (",".join(fields), data)).strip()
+
+
+class psample_msg(Marshal):
+    PSAMPLE_CMD_SAMPLE = 0
+    PSAMPLE_CMD_GET_GROUP = 1
+    PSAMPLE_CMD_NEW_GROUP = 2
+    PSAMPLE_CMD_DEL_GROUP = 3
+    PSAMPLE_CMD_SET_FILTER = 4
+    msg_map = {PSAMPLE_CMD_SAMPLE: psample_sample}
+
+
+class PsampleEvent(EventSocket):
+    genl_family = "psample"
+    mcast_groups = ["packets"]
+    marshal_class = psample_msg
+
+    def read_samples(self):
+        print("listening for psample events", flush=True)
+        while True:
+            try:
+                for msg in self.get():
+                    print(msg.dpstr(), flush=True)
+            except NetlinkError as ne:
+                raise ne
+
+
+def print_ovsdp_full(dp_lookup_rep, ifindex, ndb=NDB(), vpl=OvsVport()):
+    dp_name = dp_lookup_rep.get_attr("OVS_DP_ATTR_NAME")
+    base_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_STATS")
+    megaflow_stats = dp_lookup_rep.get_attr("OVS_DP_ATTR_MEGAFLOW_STATS")
+    user_features = dp_lookup_rep.get_attr("OVS_DP_ATTR_USER_FEATURES")
+    masks_cache_size = dp_lookup_rep.get_attr("OVS_DP_ATTR_MASKS_CACHE_SIZE")
+
+    print("%s:" % dp_name)
+    print(
+        "  lookups: hit:%d missed:%d lost:%d"
+        % (base_stats["hit"], base_stats["missed"], base_stats["lost"])
+    )
+    print("  flows:%d" % base_stats["flows"])
+    pkts = base_stats["hit"] + base_stats["missed"]
+    avg = (megaflow_stats["mask_hit"] / pkts) if pkts != 0 else 0.0
+    print(
+        "  masks: hit:%d total:%d hit/pkt:%f"
+        % (megaflow_stats["mask_hit"], megaflow_stats["masks"], avg)
+    )
+    print("  caches:")
+    print("    masks-cache: size:%d" % masks_cache_size)
+
+    if user_features is not None:
+        print("  features: 0x%X" % user_features)
+
+    # port print out
+    for iface in ndb.interfaces:
+        rep = vpl.info(iface.ifname, ifindex)
+        if rep is not None:
+            opts = ""
+            vpo = rep.get_attr("OVS_VPORT_ATTR_OPTIONS")
+            if vpo:
+                dpo = vpo.get_attr("OVS_TUNNEL_ATTR_DST_PORT")
+                if dpo:
+                    opts += " tnl-dport:%s" % socket.ntohs(dpo)
+            print(
+                "  port %d: %s (%s%s)"
+                % (
+                    rep.get_attr("OVS_VPORT_ATTR_PORT_NO"),
+                    rep.get_attr("OVS_VPORT_ATTR_NAME"),
+                    OvsVport.type_to_str(rep.get_attr("OVS_VPORT_ATTR_TYPE")),
+                    opts,
+                )
+            )
+
+
+def main(argv):
+    nlmsg_atoms.ovskey = ovskey
+    nlmsg_atoms.ovsactions = ovsactions
+
+    # version check for pyroute2
+    prverscheck = pyroute2.__version__.split(".")
+    if int(prverscheck[0]) == 0 and int(prverscheck[1]) < 6:
+        print("Need to upgrade the python pyroute2 package to >= 0.6.")
+        sys.exit(0)
+
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-v",
+        "--verbose",
+        action="count",
+        help="Increment 'verbose' output counter.",
+        default=0,
+    )
+    subparsers = parser.add_subparsers(dest="subcommand")
+
+    showdpcmd = subparsers.add_parser("show")
+    showdpcmd.add_argument(
+        "showdp", metavar="N", type=str, nargs="?", help="Datapath Name"
+    )
+
+    adddpcmd = subparsers.add_parser("add-dp")
+    adddpcmd.add_argument("adddp", help="Datapath Name")
+    adddpcmd.add_argument(
+        "-u",
+        "--upcall",
+        action="store_true",
+        help="Leave open a reader for upcalls",
+    )
+    adddpcmd.add_argument(
+        "-V",
+        "--versioning",
+        required=False,
+        help="Specify a custom version / feature string",
+    )
+
+    deldpcmd = subparsers.add_parser("del-dp")
+    deldpcmd.add_argument("deldp", help="Datapath Name")
+
+    addifcmd = subparsers.add_parser("add-if")
+    addifcmd.add_argument("dpname", help="Datapath Name")
+    addifcmd.add_argument("addif", help="Interface name for adding")
+    addifcmd.add_argument(
+        "-u",
+        "--upcall",
+        action="store_true",
+        help="Leave open a reader for upcalls",
+    )
+    addifcmd.add_argument(
+        "-t",
+        "--ptype",
+        type=str,
+        default="netdev",
+        choices=["netdev", "internal", "geneve", "vxlan"],
+        help="Interface type (default netdev)",
+    )
+    addifcmd.add_argument(
+        "-p",
+        "--dport",
+        type=int,
+        default=0,
+        help="Destination port (0 for default)"
+    )
+    addifcmd.add_argument(
+        "-l",
+        "--lwt",
+        type=bool,
+        default=True,
+        help="Use LWT infrastructure instead of vport (default true)."
+    )
+    delifcmd = subparsers.add_parser("del-if")
+    delifcmd.add_argument("dpname", help="Datapath Name")
+    delifcmd.add_argument("delif", help="Interface name for adding")
+    delifcmd.add_argument("-d",
+                          "--dellink",
+                          type=bool, default=False,
+                          help="Delete the link as well.")
+
+    dumpflcmd = subparsers.add_parser("dump-flows")
+    dumpflcmd.add_argument("dumpdp", help="Datapath Name")
+
+    addflcmd = subparsers.add_parser("add-flow")
+    addflcmd.add_argument("flbr", help="Datapath name")
+    addflcmd.add_argument("flow", help="Flow specification")
+    addflcmd.add_argument("acts", help="Flow actions")
+
+    delfscmd = subparsers.add_parser("del-flows")
+    delfscmd.add_argument("flsbr", help="Datapath name")
+
+    subparsers.add_parser("psample-events")
+
+    args = parser.parse_args()
+
+    if args.verbose > 0:
+        if args.verbose > 1:
+            logging.basicConfig(level=logging.DEBUG)
+
+    ovspk = OvsPacket()
+    ovsdp = OvsDatapath()
+    ovsvp = OvsVport(ovspk)
+    ovsflow = OvsFlow()
+    ndb = NDB()
+
+    sys.setrecursionlimit(100000)
+
+    if args.subcommand == "psample-events":
+        PsampleEvent().read_samples()
+
+    if hasattr(args, "showdp"):
+        found = False
+        for iface in ndb.interfaces:
+            rep = None
+            if args.showdp is None:
+                rep = ovsdp.info(iface.ifname, 0)
+            elif args.showdp == iface.ifname:
+                rep = ovsdp.info(iface.ifname, 0)
+
+            if rep is not None:
+                found = True
+                print_ovsdp_full(rep, iface.index, ndb, ovsvp)
+
+        if not found:
+            msg = "No DP found"
+            if args.showdp is not None:
+                msg += ":'%s'" % args.showdp
+            print(msg)
+    elif hasattr(args, "adddp"):
+        rep = ovsdp.create(args.adddp, args.upcall, args.versioning, ovspk)
+        if rep is None:
+            print("DP '%s' already exists" % args.adddp)
+        else:
+            print("DP '%s' added" % args.adddp)
+        if args.upcall:
+            ovspk.upcall_handler(ovsflow)
+    elif hasattr(args, "deldp"):
+        ovsdp.destroy(args.deldp)
+    elif hasattr(args, "addif"):
+        rep = ovsdp.info(args.dpname, 0)
+        if rep is None:
+            print("DP '%s' not found." % args.dpname)
+            return 1
+        dpindex = rep["dpifindex"]
+        rep = ovsvp.attach(rep["dpifindex"], args.addif, args.ptype,
+                           args.dport, args.lwt)
+        msg = "vport '%s'" % args.addif
+        if rep and rep["header"]["error"] is None:
+            msg += " added."
+        else:
+            msg += " failed to add."
+        if args.upcall:
+            if rep is None:
+                rep = ovsvp.reset_upcall(dpindex, args.addif, ovspk)
+            ovsvp.upcall_handler(ovsflow)
+    elif hasattr(args, "delif"):
+        rep = ovsdp.info(args.dpname, 0)
+        if rep is None:
+            print("DP '%s' not found." % args.dpname)
+            return 1
+        rep = ovsvp.detach(rep["dpifindex"], args.delif)
+        msg = "vport '%s'" % args.delif
+        if rep and rep["header"]["error"] is None:
+            msg += " removed."
+        else:
+            msg += " failed to remove."
+        if args.dellink:
+            ipr = pyroute2.iproute.IPRoute()
+            ipr.link("del", index=ipr.link_lookup(ifname=args.delif)[0])
+    elif hasattr(args, "dumpdp"):
+        rep = ovsdp.info(args.dumpdp, 0)
+        if rep is None:
+            print("DP '%s' not found." % args.dumpdp)
+            return 1
+        rep = ovsflow.dump(rep["dpifindex"])
+        for flow in rep:
+            print(flow.dpstr(True if args.verbose > 0 else False))
+    elif hasattr(args, "flbr"):
+        rep = ovsdp.info(args.flbr, 0)
+        if rep is None:
+            print("DP '%s' not found." % args.flbr)
+            return 1
+        flow = OvsFlow.ovs_flow_msg()
+        flow.parse(args.flow, args.acts, rep["dpifindex"])
+        ovsflow.add_flow(rep["dpifindex"], flow)
+    elif hasattr(args, "flsbr"):
+        rep = ovsdp.info(args.flsbr, 0)
+        if rep is None:
+            print("DP '%s' not found." % args.flsbr)
+        ovsflow.del_flows(rep["dpifindex"])
+
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv))
diff --git a/tools/testing/selftests/net/openvswitch/settings b/tools/testing/selftests/net/openvswitch/settings
new file mode 100644
index 000000000000..e2206265f67c
--- /dev/null
+++ b/tools/testing/selftests/net/openvswitch/settings
@@ -0,0 +1 @@
+timeout=900
diff --git a/tools/testing/selftests/net/ovpn/.gitignore b/tools/testing/selftests/net/ovpn/.gitignore
new file mode 100644
index 000000000000..ee44c081ca7c
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0+
+ovpn-cli
diff --git a/tools/testing/selftests/net/ovpn/Makefile b/tools/testing/selftests/net/ovpn/Makefile
new file mode 100644
index 000000000000..dbe0388c8512
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/Makefile
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020-2025 OpenVPN, Inc.
+#
+CFLAGS = -pedantic -Wextra -Wall -Wl,--no-as-needed -g -O0 -ggdb $(KHDR_INCLUDES)
+VAR_CFLAGS = $(shell pkg-config --cflags libnl-3.0 libnl-genl-3.0 2>/dev/null)
+ifeq ($(VAR_CFLAGS),)
+VAR_CFLAGS = -I/usr/include/libnl3
+endif
+CFLAGS += $(VAR_CFLAGS)
+
+
+LDLIBS = -lmbedtls -lmbedcrypto
+VAR_LDLIBS = $(shell pkg-config --libs libnl-3.0 libnl-genl-3.0 2>/dev/null)
+ifeq ($(VAR_LDLIBS),)
+VAR_LDLIBS = -lnl-genl-3 -lnl-3
+endif
+LDLIBS += $(VAR_LDLIBS)
+
+
+TEST_FILES = common.sh
+
+TEST_PROGS := \
+	test-chachapoly.sh \
+	test-close-socket-tcp.sh \
+	test-close-socket.sh \
+	test-float.sh \
+	test-large-mtu.sh \
+	test-tcp.sh \
+	test.sh \
+# end of TEST_PROGS
+
+TEST_GEN_FILES := ovpn-cli
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/ovpn/common.sh b/tools/testing/selftests/net/ovpn/common.sh
new file mode 100644
index 000000000000..88869c675d03
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/common.sh
@@ -0,0 +1,108 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020-2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+UDP_PEERS_FILE=${UDP_PEERS_FILE:-udp_peers.txt}
+TCP_PEERS_FILE=${TCP_PEERS_FILE:-tcp_peers.txt}
+OVPN_CLI=${OVPN_CLI:-./ovpn-cli}
+ALG=${ALG:-aes}
+PROTO=${PROTO:-UDP}
+FLOAT=${FLOAT:-0}
+
+LAN_IP="11.11.11.11"
+
+create_ns() {
+	ip netns add peer${1}
+}
+
+setup_ns() {
+	MODE="P2P"
+
+	if [ ${1} -eq 0 ]; then
+		MODE="MP"
+		for p in $(seq 1 ${NUM_PEERS}); do
+			ip link add veth${p} netns peer0 type veth peer name veth${p} netns peer${p}
+
+			ip -n peer0 addr add 10.10.${p}.1/24 dev veth${p}
+			ip -n peer0 addr add fd00:0:0:${p}::1/64 dev veth${p}
+			ip -n peer0 link set veth${p} up
+
+			ip -n peer${p} addr add 10.10.${p}.2/24 dev veth${p}
+			ip -n peer${p} addr add fd00:0:0:${p}::2/64 dev veth${p}
+			ip -n peer${p} link set veth${p} up
+		done
+	fi
+
+	ip netns exec peer${1} ${OVPN_CLI} new_iface tun${1} $MODE
+	ip -n peer${1} addr add ${2} dev tun${1}
+	# add a secondary IP to peer 1, to test a LAN behind a client
+	if [ ${1} -eq 1 -a -n "${LAN_IP}" ]; then
+		ip -n peer${1} addr add ${LAN_IP} dev tun${1}
+		ip -n peer0 route add ${LAN_IP} via $(echo ${2} |sed -e s'!/.*!!') dev tun0
+	fi
+	if [ -n "${3}" ]; then
+		ip -n peer${1} link set mtu ${3} dev tun${1}
+	fi
+	ip -n peer${1} link set tun${1} up
+}
+
+add_peer() {
+	if [ "${PROTO}" == "UDP" ]; then
+		if [ ${1} -eq 0 ]; then
+			ip netns exec peer0 ${OVPN_CLI} new_multi_peer tun0 1 ${UDP_PEERS_FILE}
+
+			for p in $(seq 1 ${NUM_PEERS}); do
+				ip netns exec peer0 ${OVPN_CLI} new_key tun0 ${p} 1 0 ${ALG} 0 \
+					data64.key
+			done
+		else
+			RADDR=$(awk "NR == ${1} {print \$2}" ${UDP_PEERS_FILE})
+			RPORT=$(awk "NR == ${1} {print \$3}" ${UDP_PEERS_FILE})
+			LPORT=$(awk "NR == ${1} {print \$5}" ${UDP_PEERS_FILE})
+			ip netns exec peer${1} ${OVPN_CLI} new_peer tun${1} ${1} ${LPORT} \
+				${RADDR} ${RPORT}
+			ip netns exec peer${1} ${OVPN_CLI} new_key tun${1} ${1} 1 0 ${ALG} 1 \
+				data64.key
+		fi
+	else
+		if [ ${1} -eq 0 ]; then
+			(ip netns exec peer0 ${OVPN_CLI} listen tun0 1 ${TCP_PEERS_FILE} && {
+				for p in $(seq 1 ${NUM_PEERS}); do
+					ip netns exec peer0 ${OVPN_CLI} new_key tun0 ${p} 1 0 \
+						${ALG} 0 data64.key
+				done
+			}) &
+			sleep 5
+		else
+			ip netns exec peer${1} ${OVPN_CLI} connect tun${1} ${1} 10.10.${1}.1 1 \
+				data64.key
+		fi
+	fi
+}
+
+cleanup() {
+	# some ovpn-cli processes sleep in background so they need manual poking
+	killall $(basename ${OVPN_CLI}) 2>/dev/null || true
+
+	# netns peer0 is deleted without erasing ifaces first
+	for p in $(seq 1 10); do
+		ip -n peer${p} link set tun${p} down 2>/dev/null || true
+		ip netns exec peer${p} ${OVPN_CLI} del_iface tun${p} 2>/dev/null || true
+	done
+	for p in $(seq 1 10); do
+		ip -n peer0 link del veth${p} 2>/dev/null || true
+	done
+	for p in $(seq 0 10); do
+		ip netns del peer${p} 2>/dev/null || true
+	done
+}
+
+if [ "${PROTO}" == "UDP" ]; then
+	NUM_PEERS=${NUM_PEERS:-$(wc -l ${UDP_PEERS_FILE} | awk '{print $1}')}
+else
+	NUM_PEERS=${NUM_PEERS:-$(wc -l ${TCP_PEERS_FILE} | awk '{print $1}')}
+fi
+
+
diff --git a/tools/testing/selftests/net/ovpn/config b/tools/testing/selftests/net/ovpn/config
new file mode 100644
index 000000000000..42699740936d
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/config
@@ -0,0 +1,10 @@
+CONFIG_CRYPTO=y
+CONFIG_CRYPTO_AES=y
+CONFIG_CRYPTO_CHACHA20POLY1305=y
+CONFIG_CRYPTO_GCM=y
+CONFIG_DST_CACHE=y
+CONFIG_INET=y
+CONFIG_NET=y
+CONFIG_NET_UDP_TUNNEL=y
+CONFIG_OVPN=m
+CONFIG_STREAM_PARSER=y
diff --git a/tools/testing/selftests/net/ovpn/data64.key b/tools/testing/selftests/net/ovpn/data64.key
new file mode 100644
index 000000000000..a99e88c4e290
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/data64.key
@@ -0,0 +1,5 @@
+jRqMACN7d7/aFQNT8S7jkrBD8uwrgHbG5OQZP2eu4R1Y7tfpS2bf5RHv06Vi163CGoaIiTX99R3B
+ia9ycAH8Wz1+9PWv51dnBLur9jbShlgZ2QHLtUc4a/gfT7zZwULXuuxdLnvR21DDeMBaTbkgbai9
+uvAa7ne1liIgGFzbv+Bas4HDVrygxIxuAnP5Qgc3648IJkZ0QEXPF+O9f0n5+QIvGCxkAUVx+5K6
+KIs+SoeWXnAopELmoGSjUpFtJbagXK82HfdqpuUxT2Tnuef0/14SzVE/vNleBNu2ZbyrSAaah8tE
+BofkPJUBFY+YQcfZNM5Dgrw3i+Bpmpq/gpdg5w==
diff --git a/tools/testing/selftests/net/ovpn/ovpn-cli.c b/tools/testing/selftests/net/ovpn/ovpn-cli.c
new file mode 100644
index 000000000000..0f3babf19fd0
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/ovpn-cli.c
@@ -0,0 +1,2387 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  OpenVPN data channel accelerator
+ *
+ *  Copyright (C) 2020-2025 OpenVPN, Inc.
+ *
+ *  Author:	Antonio Quartulli <antonio@openvpn.net>
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <time.h>
+
+#include <linux/ovpn.h>
+#include <linux/types.h>
+#include <linux/netlink.h>
+
+#include <netlink/socket.h>
+#include <netlink/netlink.h>
+#include <netlink/genl/genl.h>
+#include <netlink/genl/family.h>
+#include <netlink/genl/ctrl.h>
+
+#include <mbedtls/base64.h>
+#include <mbedtls/error.h>
+
+#include <sys/socket.h>
+
+#include "kselftest.h"
+
+/* defines to make checkpatch happy */
+#define strscpy strncpy
+
+/* libnl < 3.5.0 does not set the NLA_F_NESTED on its own, therefore we
+ * have to explicitly do it to prevent the kernel from failing upon
+ * parsing of the message
+ */
+#define nla_nest_start(_msg, _type) \
+	nla_nest_start(_msg, (_type) | NLA_F_NESTED)
+
+/* libnl < 3.11.0 does not implement nla_get_uint() */
+uint64_t ovpn_nla_get_uint(struct nlattr *attr)
+{
+	if (nla_len(attr) == sizeof(uint32_t))
+		return nla_get_u32(attr);
+	else
+		return nla_get_u64(attr);
+}
+
+typedef int (*ovpn_nl_cb)(struct nl_msg *msg, void *arg);
+
+enum ovpn_key_direction {
+	KEY_DIR_IN = 0,
+	KEY_DIR_OUT,
+};
+
+#define KEY_LEN (256 / 8)
+#define NONCE_LEN 8
+
+#define PEER_ID_UNDEF 0x00FFFFFF
+#define MAX_PEERS 10
+
+struct nl_ctx {
+	struct nl_sock *nl_sock;
+	struct nl_msg *nl_msg;
+	struct nl_cb *nl_cb;
+
+	int ovpn_dco_id;
+};
+
+enum ovpn_cmd {
+	CMD_INVALID,
+	CMD_NEW_IFACE,
+	CMD_DEL_IFACE,
+	CMD_LISTEN,
+	CMD_CONNECT,
+	CMD_NEW_PEER,
+	CMD_NEW_MULTI_PEER,
+	CMD_SET_PEER,
+	CMD_DEL_PEER,
+	CMD_GET_PEER,
+	CMD_NEW_KEY,
+	CMD_DEL_KEY,
+	CMD_GET_KEY,
+	CMD_SWAP_KEYS,
+	CMD_LISTEN_MCAST,
+};
+
+struct ovpn_ctx {
+	enum ovpn_cmd cmd;
+
+	__u8 key_enc[KEY_LEN];
+	__u8 key_dec[KEY_LEN];
+	__u8 nonce[NONCE_LEN];
+
+	enum ovpn_cipher_alg cipher;
+
+	sa_family_t sa_family;
+
+	unsigned long peer_id;
+	unsigned long lport;
+
+	union {
+		struct sockaddr_in in4;
+		struct sockaddr_in6 in6;
+	} remote;
+
+	union {
+		struct sockaddr_in in4;
+		struct sockaddr_in6 in6;
+	} peer_ip;
+
+	bool peer_ip_set;
+
+	unsigned int ifindex;
+	char ifname[IFNAMSIZ];
+	enum ovpn_mode mode;
+	bool mode_set;
+
+	int socket;
+	int cli_sockets[MAX_PEERS];
+
+	__u32 keepalive_interval;
+	__u32 keepalive_timeout;
+
+	enum ovpn_key_direction key_dir;
+	enum ovpn_key_slot key_slot;
+	int key_id;
+
+	const char *peers_file;
+};
+
+static int ovpn_nl_recvmsgs(struct nl_ctx *ctx)
+{
+	int ret;
+
+	ret = nl_recvmsgs(ctx->nl_sock, ctx->nl_cb);
+
+	switch (ret) {
+	case -NLE_INTR:
+		fprintf(stderr,
+			"netlink received interrupt due to signal - ignoring\n");
+		break;
+	case -NLE_NOMEM:
+		fprintf(stderr, "netlink out of memory error\n");
+		break;
+	case -NLE_AGAIN:
+		fprintf(stderr,
+			"netlink reports blocking read - aborting wait\n");
+		break;
+	default:
+		if (ret)
+			fprintf(stderr, "netlink reports error (%d): %s\n",
+				ret, nl_geterror(-ret));
+		break;
+	}
+
+	return ret;
+}
+
+static struct nl_ctx *nl_ctx_alloc_flags(struct ovpn_ctx *ovpn, int cmd,
+					 int flags)
+{
+	struct nl_ctx *ctx;
+	int err, ret;
+
+	ctx = calloc(1, sizeof(*ctx));
+	if (!ctx)
+		return NULL;
+
+	ctx->nl_sock = nl_socket_alloc();
+	if (!ctx->nl_sock) {
+		fprintf(stderr, "cannot allocate netlink socket\n");
+		goto err_free;
+	}
+
+	nl_socket_set_buffer_size(ctx->nl_sock, 8192, 8192);
+
+	ret = genl_connect(ctx->nl_sock);
+	if (ret) {
+		fprintf(stderr, "cannot connect to generic netlink: %s\n",
+			nl_geterror(ret));
+		goto err_sock;
+	}
+
+	/* enable Extended ACK for detailed error reporting */
+	err = 1;
+	setsockopt(nl_socket_get_fd(ctx->nl_sock), SOL_NETLINK, NETLINK_EXT_ACK,
+		   &err, sizeof(err));
+
+	ctx->ovpn_dco_id = genl_ctrl_resolve(ctx->nl_sock, OVPN_FAMILY_NAME);
+	if (ctx->ovpn_dco_id < 0) {
+		fprintf(stderr, "cannot find ovpn_dco netlink component: %d\n",
+			ctx->ovpn_dco_id);
+		goto err_free;
+	}
+
+	ctx->nl_msg = nlmsg_alloc();
+	if (!ctx->nl_msg) {
+		fprintf(stderr, "cannot allocate netlink message\n");
+		goto err_sock;
+	}
+
+	ctx->nl_cb = nl_cb_alloc(NL_CB_DEFAULT);
+	if (!ctx->nl_cb) {
+		fprintf(stderr, "failed to allocate netlink callback\n");
+		goto err_msg;
+	}
+
+	nl_socket_set_cb(ctx->nl_sock, ctx->nl_cb);
+
+	genlmsg_put(ctx->nl_msg, 0, 0, ctx->ovpn_dco_id, 0, flags, cmd, 0);
+
+	if (ovpn->ifindex > 0)
+		NLA_PUT_U32(ctx->nl_msg, OVPN_A_IFINDEX, ovpn->ifindex);
+
+	return ctx;
+nla_put_failure:
+err_msg:
+	nlmsg_free(ctx->nl_msg);
+err_sock:
+	nl_socket_free(ctx->nl_sock);
+err_free:
+	free(ctx);
+	return NULL;
+}
+
+static struct nl_ctx *nl_ctx_alloc(struct ovpn_ctx *ovpn, int cmd)
+{
+	return nl_ctx_alloc_flags(ovpn, cmd, 0);
+}
+
+static void nl_ctx_free(struct nl_ctx *ctx)
+{
+	if (!ctx)
+		return;
+
+	nl_socket_free(ctx->nl_sock);
+	nlmsg_free(ctx->nl_msg);
+	nl_cb_put(ctx->nl_cb);
+	free(ctx);
+}
+
+static int ovpn_nl_cb_error(struct sockaddr_nl (*nla)__always_unused,
+			    struct nlmsgerr *err, void *arg)
+{
+	struct nlmsghdr *nlh = (struct nlmsghdr *)err - 1;
+	struct nlattr *tb_msg[NLMSGERR_ATTR_MAX + 1];
+	int len = nlh->nlmsg_len;
+	struct nlattr *attrs;
+	int *ret = arg;
+	int ack_len = sizeof(*nlh) + sizeof(int) + sizeof(*nlh);
+
+	*ret = err->error;
+
+	if (!(nlh->nlmsg_flags & NLM_F_ACK_TLVS))
+		return NL_STOP;
+
+	if (!(nlh->nlmsg_flags & NLM_F_CAPPED))
+		ack_len += err->msg.nlmsg_len - sizeof(*nlh);
+
+	if (len <= ack_len)
+		return NL_STOP;
+
+	attrs = (void *)((uint8_t *)nlh + ack_len);
+	len -= ack_len;
+
+	nla_parse(tb_msg, NLMSGERR_ATTR_MAX, attrs, len, NULL);
+	if (tb_msg[NLMSGERR_ATTR_MSG]) {
+		len = strnlen((char *)nla_data(tb_msg[NLMSGERR_ATTR_MSG]),
+			      nla_len(tb_msg[NLMSGERR_ATTR_MSG]));
+		fprintf(stderr, "kernel error: %*s\n", len,
+			(char *)nla_data(tb_msg[NLMSGERR_ATTR_MSG]));
+	}
+
+	if (tb_msg[NLMSGERR_ATTR_MISS_NEST]) {
+		fprintf(stderr, "missing required nesting type %u\n",
+			nla_get_u32(tb_msg[NLMSGERR_ATTR_MISS_NEST]));
+	}
+
+	if (tb_msg[NLMSGERR_ATTR_MISS_TYPE]) {
+		fprintf(stderr, "missing required attribute type %u\n",
+			nla_get_u32(tb_msg[NLMSGERR_ATTR_MISS_TYPE]));
+	}
+
+	return NL_STOP;
+}
+
+static int ovpn_nl_cb_finish(struct nl_msg (*msg)__always_unused,
+			     void *arg)
+{
+	int *status = arg;
+
+	*status = 0;
+	return NL_SKIP;
+}
+
+static int ovpn_nl_cb_ack(struct nl_msg (*msg)__always_unused,
+			  void *arg)
+{
+	int *status = arg;
+
+	*status = 0;
+	return NL_STOP;
+}
+
+static int ovpn_nl_msg_send(struct nl_ctx *ctx, ovpn_nl_cb cb)
+{
+	int status = 1;
+
+	nl_cb_err(ctx->nl_cb, NL_CB_CUSTOM, ovpn_nl_cb_error, &status);
+	nl_cb_set(ctx->nl_cb, NL_CB_FINISH, NL_CB_CUSTOM, ovpn_nl_cb_finish,
+		  &status);
+	nl_cb_set(ctx->nl_cb, NL_CB_ACK, NL_CB_CUSTOM, ovpn_nl_cb_ack, &status);
+
+	if (cb)
+		nl_cb_set(ctx->nl_cb, NL_CB_VALID, NL_CB_CUSTOM, cb, ctx);
+
+	nl_send_auto_complete(ctx->nl_sock, ctx->nl_msg);
+
+	while (status == 1)
+		ovpn_nl_recvmsgs(ctx);
+
+	if (status < 0)
+		fprintf(stderr, "failed to send netlink message: %s (%d)\n",
+			strerror(-status), status);
+
+	return status;
+}
+
+static int ovpn_parse_key(const char *file, struct ovpn_ctx *ctx)
+{
+	int idx_enc, idx_dec, ret = -1;
+	unsigned char *ckey = NULL;
+	__u8 *bkey = NULL;
+	size_t olen = 0;
+	long ckey_len;
+	FILE *fp;
+
+	fp = fopen(file, "r");
+	if (!fp) {
+		fprintf(stderr, "cannot open: %s\n", file);
+		return -1;
+	}
+
+	/* get file size */
+	fseek(fp, 0L, SEEK_END);
+	ckey_len = ftell(fp);
+	rewind(fp);
+
+	/* if the file is longer, let's just read a portion */
+	if (ckey_len > 256)
+		ckey_len = 256;
+
+	ckey = malloc(ckey_len);
+	if (!ckey)
+		goto err;
+
+	ret = fread(ckey, 1, ckey_len, fp);
+	if (ret != ckey_len) {
+		fprintf(stderr,
+			"couldn't read enough data from key file: %dbytes read\n",
+			ret);
+		goto err;
+	}
+
+	olen = 0;
+	ret = mbedtls_base64_decode(NULL, 0, &olen, ckey, ckey_len);
+	if (ret != MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) {
+		char buf[256];
+
+		mbedtls_strerror(ret, buf, sizeof(buf));
+		fprintf(stderr, "unexpected base64 error1: %s (%d)\n", buf,
+			ret);
+
+		goto err;
+	}
+
+	bkey = malloc(olen);
+	if (!bkey) {
+		fprintf(stderr, "cannot allocate binary key buffer\n");
+		goto err;
+	}
+
+	ret = mbedtls_base64_decode(bkey, olen, &olen, ckey, ckey_len);
+	if (ret) {
+		char buf[256];
+
+		mbedtls_strerror(ret, buf, sizeof(buf));
+		fprintf(stderr, "unexpected base64 error2: %s (%d)\n", buf,
+			ret);
+
+		goto err;
+	}
+
+	if (olen < 2 * KEY_LEN + NONCE_LEN) {
+		fprintf(stderr,
+			"not enough data in key file, found %zdB but needs %dB\n",
+			olen, 2 * KEY_LEN + NONCE_LEN);
+		goto err;
+	}
+
+	switch (ctx->key_dir) {
+	case KEY_DIR_IN:
+		idx_enc = 0;
+		idx_dec = 1;
+		break;
+	case KEY_DIR_OUT:
+		idx_enc = 1;
+		idx_dec = 0;
+		break;
+	default:
+		goto err;
+	}
+
+	memcpy(ctx->key_enc, bkey + KEY_LEN * idx_enc, KEY_LEN);
+	memcpy(ctx->key_dec, bkey + KEY_LEN * idx_dec, KEY_LEN);
+	memcpy(ctx->nonce, bkey + 2 * KEY_LEN, NONCE_LEN);
+
+	ret = 0;
+
+err:
+	fclose(fp);
+	free(bkey);
+	free(ckey);
+
+	return ret;
+}
+
+static int ovpn_parse_cipher(const char *cipher, struct ovpn_ctx *ctx)
+{
+	if (strcmp(cipher, "aes") == 0)
+		ctx->cipher = OVPN_CIPHER_ALG_AES_GCM;
+	else if (strcmp(cipher, "chachapoly") == 0)
+		ctx->cipher = OVPN_CIPHER_ALG_CHACHA20_POLY1305;
+	else if (strcmp(cipher, "none") == 0)
+		ctx->cipher = OVPN_CIPHER_ALG_NONE;
+	else
+		return -ENOTSUP;
+
+	return 0;
+}
+
+static int ovpn_parse_key_direction(const char *dir, struct ovpn_ctx *ctx)
+{
+	int in_dir;
+
+	in_dir = strtoll(dir, NULL, 10);
+	switch (in_dir) {
+	case KEY_DIR_IN:
+	case KEY_DIR_OUT:
+		ctx->key_dir = in_dir;
+		break;
+	default:
+		fprintf(stderr,
+			"invalid key direction provided. Can be 0 or 1 only\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int ovpn_socket(struct ovpn_ctx *ctx, sa_family_t family, int proto)
+{
+	struct sockaddr_storage local_sock = { 0 };
+	struct sockaddr_in6 *in6;
+	struct sockaddr_in *in;
+	int ret, s, sock_type;
+	size_t sock_len;
+
+	if (proto == IPPROTO_UDP)
+		sock_type = SOCK_DGRAM;
+	else if (proto == IPPROTO_TCP)
+		sock_type = SOCK_STREAM;
+	else
+		return -EINVAL;
+
+	s = socket(family, sock_type, 0);
+	if (s < 0) {
+		perror("cannot create socket");
+		return -1;
+	}
+
+	switch (family) {
+	case AF_INET:
+		in = (struct sockaddr_in *)&local_sock;
+		in->sin_family = family;
+		in->sin_port = htons(ctx->lport);
+		in->sin_addr.s_addr = htonl(INADDR_ANY);
+		sock_len = sizeof(*in);
+		break;
+	case AF_INET6:
+		in6 = (struct sockaddr_in6 *)&local_sock;
+		in6->sin6_family = family;
+		in6->sin6_port = htons(ctx->lport);
+		in6->sin6_addr = in6addr_any;
+		sock_len = sizeof(*in6);
+		break;
+	default:
+		return -1;
+	}
+
+	int opt = 1;
+
+	ret = setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
+
+	if (ret < 0) {
+		perror("setsockopt for SO_REUSEADDR");
+		return ret;
+	}
+
+	ret = setsockopt(s, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt));
+	if (ret < 0) {
+		perror("setsockopt for SO_REUSEPORT");
+		return ret;
+	}
+
+	if (family == AF_INET6) {
+		opt = 0;
+		if (setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &opt,
+			       sizeof(opt))) {
+			perror("failed to set IPV6_V6ONLY");
+			return -1;
+		}
+	}
+
+	ret = bind(s, (struct sockaddr *)&local_sock, sock_len);
+	if (ret < 0) {
+		perror("cannot bind socket");
+		goto err_socket;
+	}
+
+	ctx->socket = s;
+	ctx->sa_family = family;
+	return 0;
+
+err_socket:
+	close(s);
+	return -1;
+}
+
+static int ovpn_udp_socket(struct ovpn_ctx *ctx, sa_family_t family)
+{
+	return ovpn_socket(ctx, family, IPPROTO_UDP);
+}
+
+static int ovpn_listen(struct ovpn_ctx *ctx, sa_family_t family)
+{
+	int ret;
+
+	ret = ovpn_socket(ctx, family, IPPROTO_TCP);
+	if (ret < 0)
+		return ret;
+
+	ret = listen(ctx->socket, 10);
+	if (ret < 0) {
+		perror("listen");
+		close(ctx->socket);
+		return -1;
+	}
+
+	return 0;
+}
+
+static int ovpn_accept(struct ovpn_ctx *ctx)
+{
+	socklen_t socklen;
+	int ret;
+
+	socklen = sizeof(ctx->remote);
+	ret = accept(ctx->socket, (struct sockaddr *)&ctx->remote, &socklen);
+	if (ret < 0) {
+		perror("accept");
+		goto err;
+	}
+
+	fprintf(stderr, "Connection received!\n");
+
+	switch (socklen) {
+	case sizeof(struct sockaddr_in):
+	case sizeof(struct sockaddr_in6):
+		break;
+	default:
+		fprintf(stderr, "error: expecting IPv4 or IPv6 connection\n");
+		close(ret);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	return ret;
+err:
+	close(ctx->socket);
+	return ret;
+}
+
+static int ovpn_connect(struct ovpn_ctx *ovpn)
+{
+	socklen_t socklen;
+	int s, ret;
+
+	s = socket(ovpn->remote.in4.sin_family, SOCK_STREAM, 0);
+	if (s < 0) {
+		perror("cannot create socket");
+		return -1;
+	}
+
+	switch (ovpn->remote.in4.sin_family) {
+	case AF_INET:
+		socklen = sizeof(struct sockaddr_in);
+		break;
+	case AF_INET6:
+		socklen = sizeof(struct sockaddr_in6);
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	ret = connect(s, (struct sockaddr *)&ovpn->remote, socklen);
+	if (ret < 0) {
+		perror("connect");
+		goto err;
+	}
+
+	fprintf(stderr, "connected\n");
+
+	ovpn->socket = s;
+
+	return 0;
+err:
+	close(s);
+	return ret;
+}
+
+static int ovpn_new_peer(struct ovpn_ctx *ovpn, bool is_tcp)
+{
+	struct nlattr *attr;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_PEER_NEW);
+	if (!ctx)
+		return -ENOMEM;
+
+	attr = nla_nest_start(ctx->nl_msg, OVPN_A_PEER);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_ID, ovpn->peer_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_SOCKET, ovpn->socket);
+
+	if (!is_tcp) {
+		switch (ovpn->remote.in4.sin_family) {
+		case AF_INET:
+			NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_REMOTE_IPV4,
+				    ovpn->remote.in4.sin_addr.s_addr);
+			NLA_PUT_U16(ctx->nl_msg, OVPN_A_PEER_REMOTE_PORT,
+				    ovpn->remote.in4.sin_port);
+			break;
+		case AF_INET6:
+			NLA_PUT(ctx->nl_msg, OVPN_A_PEER_REMOTE_IPV6,
+				sizeof(ovpn->remote.in6.sin6_addr),
+				&ovpn->remote.in6.sin6_addr);
+			NLA_PUT_U32(ctx->nl_msg,
+				    OVPN_A_PEER_REMOTE_IPV6_SCOPE_ID,
+				    ovpn->remote.in6.sin6_scope_id);
+			NLA_PUT_U16(ctx->nl_msg, OVPN_A_PEER_REMOTE_PORT,
+				    ovpn->remote.in6.sin6_port);
+			break;
+		default:
+			fprintf(stderr,
+				"Invalid family for remote socket address\n");
+			goto nla_put_failure;
+		}
+	}
+
+	if (ovpn->peer_ip_set) {
+		switch (ovpn->peer_ip.in4.sin_family) {
+		case AF_INET:
+			NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_VPN_IPV4,
+				    ovpn->peer_ip.in4.sin_addr.s_addr);
+			break;
+		case AF_INET6:
+			NLA_PUT(ctx->nl_msg, OVPN_A_PEER_VPN_IPV6,
+				sizeof(struct in6_addr),
+				&ovpn->peer_ip.in6.sin6_addr);
+			break;
+		default:
+			fprintf(stderr, "Invalid family for peer address\n");
+			goto nla_put_failure;
+		}
+	}
+
+	nla_nest_end(ctx->nl_msg, attr);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_set_peer(struct ovpn_ctx *ovpn)
+{
+	struct nlattr *attr;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_PEER_SET);
+	if (!ctx)
+		return -ENOMEM;
+
+	attr = nla_nest_start(ctx->nl_msg, OVPN_A_PEER);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_ID, ovpn->peer_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_KEEPALIVE_INTERVAL,
+		    ovpn->keepalive_interval);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_KEEPALIVE_TIMEOUT,
+		    ovpn->keepalive_timeout);
+	nla_nest_end(ctx->nl_msg, attr);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_del_peer(struct ovpn_ctx *ovpn)
+{
+	struct nlattr *attr;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_PEER_DEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	attr = nla_nest_start(ctx->nl_msg, OVPN_A_PEER);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_ID, ovpn->peer_id);
+	nla_nest_end(ctx->nl_msg, attr);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_handle_peer(struct nl_msg *msg, void (*arg)__always_unused)
+{
+	struct nlattr *pattrs[OVPN_A_PEER_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *attrs[OVPN_A_MAX + 1];
+	__u16 rport = 0, lport = 0;
+
+	nla_parse(attrs, OVPN_A_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (!attrs[OVPN_A_PEER]) {
+		fprintf(stderr, "no packet content in netlink message\n");
+		return NL_SKIP;
+	}
+
+	nla_parse(pattrs, OVPN_A_PEER_MAX, nla_data(attrs[OVPN_A_PEER]),
+		  nla_len(attrs[OVPN_A_PEER]), NULL);
+
+	if (pattrs[OVPN_A_PEER_ID])
+		fprintf(stderr, "* Peer %u\n",
+			nla_get_u32(pattrs[OVPN_A_PEER_ID]));
+
+	if (pattrs[OVPN_A_PEER_SOCKET_NETNSID])
+		fprintf(stderr, "\tsocket NetNS ID: %d\n",
+			nla_get_s32(pattrs[OVPN_A_PEER_SOCKET_NETNSID]));
+
+	if (pattrs[OVPN_A_PEER_VPN_IPV4]) {
+		char buf[INET_ADDRSTRLEN];
+
+		inet_ntop(AF_INET, nla_data(pattrs[OVPN_A_PEER_VPN_IPV4]),
+			  buf, sizeof(buf));
+		fprintf(stderr, "\tVPN IPv4: %s\n", buf);
+	}
+
+	if (pattrs[OVPN_A_PEER_VPN_IPV6]) {
+		char buf[INET6_ADDRSTRLEN];
+
+		inet_ntop(AF_INET6, nla_data(pattrs[OVPN_A_PEER_VPN_IPV6]),
+			  buf, sizeof(buf));
+		fprintf(stderr, "\tVPN IPv6: %s\n", buf);
+	}
+
+	if (pattrs[OVPN_A_PEER_LOCAL_PORT])
+		lport = ntohs(nla_get_u16(pattrs[OVPN_A_PEER_LOCAL_PORT]));
+
+	if (pattrs[OVPN_A_PEER_REMOTE_PORT])
+		rport = ntohs(nla_get_u16(pattrs[OVPN_A_PEER_REMOTE_PORT]));
+
+	if (pattrs[OVPN_A_PEER_REMOTE_IPV6]) {
+		void *ip = pattrs[OVPN_A_PEER_REMOTE_IPV6];
+		char buf[INET6_ADDRSTRLEN];
+		int scope_id = -1;
+
+		if (pattrs[OVPN_A_PEER_REMOTE_IPV6_SCOPE_ID]) {
+			void *p = pattrs[OVPN_A_PEER_REMOTE_IPV6_SCOPE_ID];
+
+			scope_id = nla_get_u32(p);
+		}
+
+		inet_ntop(AF_INET6, nla_data(ip), buf, sizeof(buf));
+		fprintf(stderr, "\tRemote: %s:%hu (scope-id: %u)\n", buf, rport,
+			scope_id);
+
+		if (pattrs[OVPN_A_PEER_LOCAL_IPV6]) {
+			void *ip = pattrs[OVPN_A_PEER_LOCAL_IPV6];
+
+			inet_ntop(AF_INET6, nla_data(ip), buf, sizeof(buf));
+			fprintf(stderr, "\tLocal: %s:%hu\n", buf, lport);
+		}
+	}
+
+	if (pattrs[OVPN_A_PEER_REMOTE_IPV4]) {
+		void *ip = pattrs[OVPN_A_PEER_REMOTE_IPV4];
+		char buf[INET_ADDRSTRLEN];
+
+		inet_ntop(AF_INET, nla_data(ip), buf, sizeof(buf));
+		fprintf(stderr, "\tRemote: %s:%hu\n", buf, rport);
+
+		if (pattrs[OVPN_A_PEER_LOCAL_IPV4]) {
+			void *p = pattrs[OVPN_A_PEER_LOCAL_IPV4];
+
+			inet_ntop(AF_INET, nla_data(p), buf, sizeof(buf));
+			fprintf(stderr, "\tLocal: %s:%hu\n", buf, lport);
+		}
+	}
+
+	if (pattrs[OVPN_A_PEER_KEEPALIVE_INTERVAL]) {
+		void *p = pattrs[OVPN_A_PEER_KEEPALIVE_INTERVAL];
+
+		fprintf(stderr, "\tKeepalive interval: %u sec\n",
+			nla_get_u32(p));
+	}
+
+	if (pattrs[OVPN_A_PEER_KEEPALIVE_TIMEOUT])
+		fprintf(stderr, "\tKeepalive timeout: %u sec\n",
+			nla_get_u32(pattrs[OVPN_A_PEER_KEEPALIVE_TIMEOUT]));
+
+	if (pattrs[OVPN_A_PEER_VPN_RX_BYTES])
+		fprintf(stderr, "\tVPN RX bytes: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_VPN_RX_BYTES]));
+
+	if (pattrs[OVPN_A_PEER_VPN_TX_BYTES])
+		fprintf(stderr, "\tVPN TX bytes: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_VPN_TX_BYTES]));
+
+	if (pattrs[OVPN_A_PEER_VPN_RX_PACKETS])
+		fprintf(stderr, "\tVPN RX packets: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_VPN_RX_PACKETS]));
+
+	if (pattrs[OVPN_A_PEER_VPN_TX_PACKETS])
+		fprintf(stderr, "\tVPN TX packets: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_VPN_TX_PACKETS]));
+
+	if (pattrs[OVPN_A_PEER_LINK_RX_BYTES])
+		fprintf(stderr, "\tLINK RX bytes: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_LINK_RX_BYTES]));
+
+	if (pattrs[OVPN_A_PEER_LINK_TX_BYTES])
+		fprintf(stderr, "\tLINK TX bytes: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_LINK_TX_BYTES]));
+
+	if (pattrs[OVPN_A_PEER_LINK_RX_PACKETS])
+		fprintf(stderr, "\tLINK RX packets: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_LINK_RX_PACKETS]));
+
+	if (pattrs[OVPN_A_PEER_LINK_TX_PACKETS])
+		fprintf(stderr, "\tLINK TX packets: %" PRIu64 "\n",
+			ovpn_nla_get_uint(pattrs[OVPN_A_PEER_LINK_TX_PACKETS]));
+
+	return NL_SKIP;
+}
+
+static int ovpn_get_peer(struct ovpn_ctx *ovpn)
+{
+	int flags = 0, ret = -1;
+	struct nlattr *attr;
+	struct nl_ctx *ctx;
+
+	if (ovpn->peer_id == PEER_ID_UNDEF)
+		flags = NLM_F_DUMP;
+
+	ctx = nl_ctx_alloc_flags(ovpn, OVPN_CMD_PEER_GET, flags);
+	if (!ctx)
+		return -ENOMEM;
+
+	if (ovpn->peer_id != PEER_ID_UNDEF) {
+		attr = nla_nest_start(ctx->nl_msg, OVPN_A_PEER);
+		NLA_PUT_U32(ctx->nl_msg, OVPN_A_PEER_ID, ovpn->peer_id);
+		nla_nest_end(ctx->nl_msg, attr);
+	}
+
+	ret = ovpn_nl_msg_send(ctx, ovpn_handle_peer);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_new_key(struct ovpn_ctx *ovpn)
+{
+	struct nlattr *keyconf, *key_dir;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_KEY_NEW);
+	if (!ctx)
+		return -ENOMEM;
+
+	keyconf = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_PEER_ID, ovpn->peer_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_SLOT, ovpn->key_slot);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_KEY_ID, ovpn->key_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_CIPHER_ALG, ovpn->cipher);
+
+	key_dir = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF_ENCRYPT_DIR);
+	NLA_PUT(ctx->nl_msg, OVPN_A_KEYDIR_CIPHER_KEY, KEY_LEN, ovpn->key_enc);
+	NLA_PUT(ctx->nl_msg, OVPN_A_KEYDIR_NONCE_TAIL, NONCE_LEN, ovpn->nonce);
+	nla_nest_end(ctx->nl_msg, key_dir);
+
+	key_dir = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF_DECRYPT_DIR);
+	NLA_PUT(ctx->nl_msg, OVPN_A_KEYDIR_CIPHER_KEY, KEY_LEN, ovpn->key_dec);
+	NLA_PUT(ctx->nl_msg, OVPN_A_KEYDIR_NONCE_TAIL, NONCE_LEN, ovpn->nonce);
+	nla_nest_end(ctx->nl_msg, key_dir);
+
+	nla_nest_end(ctx->nl_msg, keyconf);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_del_key(struct ovpn_ctx *ovpn)
+{
+	struct nlattr *keyconf;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_KEY_DEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	keyconf = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_PEER_ID, ovpn->peer_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_SLOT, ovpn->key_slot);
+	nla_nest_end(ctx->nl_msg, keyconf);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_handle_key(struct nl_msg *msg, void (*arg)__always_unused)
+{
+	struct nlattr *kattrs[OVPN_A_KEYCONF_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *attrs[OVPN_A_MAX + 1];
+
+	nla_parse(attrs, OVPN_A_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (!attrs[OVPN_A_KEYCONF]) {
+		fprintf(stderr, "no packet content in netlink message\n");
+		return NL_SKIP;
+	}
+
+	nla_parse(kattrs, OVPN_A_KEYCONF_MAX, nla_data(attrs[OVPN_A_KEYCONF]),
+		  nla_len(attrs[OVPN_A_KEYCONF]), NULL);
+
+	if (kattrs[OVPN_A_KEYCONF_PEER_ID])
+		fprintf(stderr, "* Peer %u\n",
+			nla_get_u32(kattrs[OVPN_A_KEYCONF_PEER_ID]));
+	if (kattrs[OVPN_A_KEYCONF_SLOT]) {
+		fprintf(stderr, "\t- Slot: ");
+		switch (nla_get_u32(kattrs[OVPN_A_KEYCONF_SLOT])) {
+		case OVPN_KEY_SLOT_PRIMARY:
+			fprintf(stderr, "primary\n");
+			break;
+		case OVPN_KEY_SLOT_SECONDARY:
+			fprintf(stderr, "secondary\n");
+			break;
+		default:
+			fprintf(stderr, "invalid (%u)\n",
+				nla_get_u32(kattrs[OVPN_A_KEYCONF_SLOT]));
+			break;
+		}
+	}
+	if (kattrs[OVPN_A_KEYCONF_KEY_ID])
+		fprintf(stderr, "\t- Key ID: %u\n",
+			nla_get_u32(kattrs[OVPN_A_KEYCONF_KEY_ID]));
+	if (kattrs[OVPN_A_KEYCONF_CIPHER_ALG]) {
+		fprintf(stderr, "\t- Cipher: ");
+		switch (nla_get_u32(kattrs[OVPN_A_KEYCONF_CIPHER_ALG])) {
+		case OVPN_CIPHER_ALG_NONE:
+			fprintf(stderr, "none\n");
+			break;
+		case OVPN_CIPHER_ALG_AES_GCM:
+			fprintf(stderr, "aes-gcm\n");
+			break;
+		case OVPN_CIPHER_ALG_CHACHA20_POLY1305:
+			fprintf(stderr, "chacha20poly1305\n");
+			break;
+		default:
+			fprintf(stderr, "invalid (%u)\n",
+				nla_get_u32(kattrs[OVPN_A_KEYCONF_CIPHER_ALG]));
+			break;
+		}
+	}
+
+	return NL_SKIP;
+}
+
+static int ovpn_get_key(struct ovpn_ctx *ovpn)
+{
+	struct nlattr *keyconf;
+	struct nl_ctx *ctx;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_KEY_GET);
+	if (!ctx)
+		return -ENOMEM;
+
+	keyconf = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_PEER_ID, ovpn->peer_id);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_SLOT, ovpn->key_slot);
+	nla_nest_end(ctx->nl_msg, keyconf);
+
+	ret = ovpn_nl_msg_send(ctx, ovpn_handle_key);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+static int ovpn_swap_keys(struct ovpn_ctx *ovpn)
+{
+	struct nl_ctx *ctx;
+	struct nlattr *kc;
+	int ret = -1;
+
+	ctx = nl_ctx_alloc(ovpn, OVPN_CMD_KEY_SWAP);
+	if (!ctx)
+		return -ENOMEM;
+
+	kc = nla_nest_start(ctx->nl_msg, OVPN_A_KEYCONF);
+	NLA_PUT_U32(ctx->nl_msg, OVPN_A_KEYCONF_PEER_ID, ovpn->peer_id);
+	nla_nest_end(ctx->nl_msg, kc);
+
+	ret = ovpn_nl_msg_send(ctx, NULL);
+nla_put_failure:
+	nl_ctx_free(ctx);
+	return ret;
+}
+
+/* Helper function used to easily add attributes to a rtnl message */
+static int ovpn_addattr(struct nlmsghdr *n, int maxlen, int type,
+			const void *data, int alen)
+{
+	int len = RTA_LENGTH(alen);
+	struct rtattr *rta;
+
+	if ((int)(NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len)) > maxlen)	{
+		fprintf(stderr, "%s: rtnl: message exceeded bound of %d\n",
+			__func__, maxlen);
+		return -EMSGSIZE;
+	}
+
+	rta = nlmsg_tail(n);
+	rta->rta_type = type;
+	rta->rta_len = len;
+
+	if (!data)
+		memset(RTA_DATA(rta), 0, alen);
+	else
+		memcpy(RTA_DATA(rta), data, alen);
+
+	n->nlmsg_len = NLMSG_ALIGN(n->nlmsg_len) + RTA_ALIGN(len);
+
+	return 0;
+}
+
+static struct rtattr *ovpn_nest_start(struct nlmsghdr *msg, size_t max_size,
+				      int attr)
+{
+	struct rtattr *nest = nlmsg_tail(msg);
+
+	if (ovpn_addattr(msg, max_size, attr, NULL, 0) < 0)
+		return NULL;
+
+	return nest;
+}
+
+static void ovpn_nest_end(struct nlmsghdr *msg, struct rtattr *nest)
+{
+	nest->rta_len = (uint8_t *)nlmsg_tail(msg) - (uint8_t *)nest;
+}
+
+#define RT_SNDBUF_SIZE (1024 * 2)
+#define RT_RCVBUF_SIZE (1024 * 4)
+
+/* Open RTNL socket */
+static int ovpn_rt_socket(void)
+{
+	int sndbuf = RT_SNDBUF_SIZE, rcvbuf = RT_RCVBUF_SIZE, fd;
+
+	fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
+	if (fd < 0) {
+		fprintf(stderr, "%s: cannot open netlink socket\n", __func__);
+		return fd;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sndbuf,
+		       sizeof(sndbuf)) < 0) {
+		fprintf(stderr, "%s: SO_SNDBUF\n", __func__);
+		close(fd);
+		return -1;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcvbuf,
+		       sizeof(rcvbuf)) < 0) {
+		fprintf(stderr, "%s: SO_RCVBUF\n", __func__);
+		close(fd);
+		return -1;
+	}
+
+	return fd;
+}
+
+/* Bind socket to Netlink subsystem */
+static int ovpn_rt_bind(int fd, uint32_t groups)
+{
+	struct sockaddr_nl local = { 0 };
+	socklen_t addr_len;
+
+	local.nl_family = AF_NETLINK;
+	local.nl_groups = groups;
+
+	if (bind(fd, (struct sockaddr *)&local, sizeof(local)) < 0) {
+		fprintf(stderr, "%s: cannot bind netlink socket: %d\n",
+			__func__, errno);
+		return -errno;
+	}
+
+	addr_len = sizeof(local);
+	if (getsockname(fd, (struct sockaddr *)&local, &addr_len) < 0) {
+		fprintf(stderr, "%s: cannot getsockname: %d\n", __func__,
+			errno);
+		return -errno;
+	}
+
+	if (addr_len != sizeof(local)) {
+		fprintf(stderr, "%s: wrong address length %d\n", __func__,
+			addr_len);
+		return -EINVAL;
+	}
+
+	if (local.nl_family != AF_NETLINK) {
+		fprintf(stderr, "%s: wrong address family %d\n", __func__,
+			local.nl_family);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+typedef int (*ovpn_parse_reply_cb)(struct nlmsghdr *msg, void *arg);
+
+/* Send Netlink message and run callback on reply (if specified) */
+static int ovpn_rt_send(struct nlmsghdr *payload, pid_t peer,
+			unsigned int groups, ovpn_parse_reply_cb cb,
+			void *arg_cb)
+{
+	int len, rem_len, fd, ret, rcv_len;
+	struct sockaddr_nl nladdr = { 0 };
+	struct nlmsgerr *err;
+	struct nlmsghdr *h;
+	char buf[1024 * 16];
+	struct iovec iov = {
+		.iov_base = payload,
+		.iov_len = payload->nlmsg_len,
+	};
+	struct msghdr nlmsg = {
+		.msg_name = &nladdr,
+		.msg_namelen = sizeof(nladdr),
+		.msg_iov = &iov,
+		.msg_iovlen = 1,
+	};
+
+	nladdr.nl_family = AF_NETLINK;
+	nladdr.nl_pid = peer;
+	nladdr.nl_groups = groups;
+
+	payload->nlmsg_seq = time(NULL);
+
+	/* no need to send reply */
+	if (!cb)
+		payload->nlmsg_flags |= NLM_F_ACK;
+
+	fd = ovpn_rt_socket();
+	if (fd < 0) {
+		fprintf(stderr, "%s: can't open rtnl socket\n", __func__);
+		return -errno;
+	}
+
+	ret = ovpn_rt_bind(fd, 0);
+	if (ret < 0) {
+		fprintf(stderr, "%s: can't bind rtnl socket\n", __func__);
+		ret = -errno;
+		goto out;
+	}
+
+	ret = sendmsg(fd, &nlmsg, 0);
+	if (ret < 0) {
+		fprintf(stderr, "%s: rtnl: error on sendmsg()\n", __func__);
+		ret = -errno;
+		goto out;
+	}
+
+	/* prepare buffer to store RTNL replies */
+	memset(buf, 0, sizeof(buf));
+	iov.iov_base = buf;
+
+	while (1) {
+		/*
+		 * iov_len is modified by recvmsg(), therefore has to be initialized before
+		 * using it again
+		 */
+		iov.iov_len = sizeof(buf);
+		rcv_len = recvmsg(fd, &nlmsg, 0);
+		if (rcv_len < 0) {
+			if (errno == EINTR || errno == EAGAIN) {
+				fprintf(stderr, "%s: interrupted call\n",
+					__func__);
+				continue;
+			}
+			fprintf(stderr, "%s: rtnl: error on recvmsg()\n",
+				__func__);
+			ret = -errno;
+			goto out;
+		}
+
+		if (rcv_len == 0) {
+			fprintf(stderr,
+				"%s: rtnl: socket reached unexpected EOF\n",
+				__func__);
+			ret = -EIO;
+			goto out;
+		}
+
+		if (nlmsg.msg_namelen != sizeof(nladdr)) {
+			fprintf(stderr,
+				"%s: sender address length: %u (expected %zu)\n",
+				__func__, nlmsg.msg_namelen, sizeof(nladdr));
+			ret = -EIO;
+			goto out;
+		}
+
+		h = (struct nlmsghdr *)buf;
+		while (rcv_len >= (int)sizeof(*h)) {
+			len = h->nlmsg_len;
+			rem_len = len - sizeof(*h);
+
+			if (rem_len < 0 || len > rcv_len) {
+				if (nlmsg.msg_flags & MSG_TRUNC) {
+					fprintf(stderr, "%s: truncated message\n",
+						__func__);
+					ret = -EIO;
+					goto out;
+				}
+				fprintf(stderr, "%s: malformed message: len=%d\n",
+					__func__, len);
+				ret = -EIO;
+				goto out;
+			}
+
+			if (h->nlmsg_type == NLMSG_DONE) {
+				ret = 0;
+				goto out;
+			}
+
+			if (h->nlmsg_type == NLMSG_ERROR) {
+				err = (struct nlmsgerr *)NLMSG_DATA(h);
+				if (rem_len < (int)sizeof(struct nlmsgerr)) {
+					fprintf(stderr, "%s: ERROR truncated\n",
+						__func__);
+					ret = -EIO;
+					goto out;
+				}
+
+				if (err->error) {
+					fprintf(stderr, "%s: (%d) %s\n",
+						__func__, err->error,
+						strerror(-err->error));
+					ret = err->error;
+					goto out;
+				}
+
+				ret = 0;
+				if (cb)	{
+					int r = cb(h, arg_cb);
+
+					if (r <= 0)
+						ret = r;
+				}
+				goto out;
+			}
+
+			if (cb) {
+				int r = cb(h, arg_cb);
+
+				if (r <= 0) {
+					ret = r;
+					goto out;
+				}
+			} else {
+				fprintf(stderr, "%s: RTNL: unexpected reply\n",
+					__func__);
+			}
+
+			rcv_len -= NLMSG_ALIGN(len);
+			h = (struct nlmsghdr *)((uint8_t *)h +
+						NLMSG_ALIGN(len));
+		}
+
+		if (nlmsg.msg_flags & MSG_TRUNC) {
+			fprintf(stderr, "%s: message truncated\n", __func__);
+			continue;
+		}
+
+		if (rcv_len) {
+			fprintf(stderr, "%s: rtnl: %d not parsed bytes\n",
+				__func__, rcv_len);
+			ret = -1;
+			goto out;
+		}
+	}
+out:
+	close(fd);
+
+	return ret;
+}
+
+struct ovpn_link_req {
+	struct nlmsghdr n;
+	struct ifinfomsg i;
+	char buf[256];
+};
+
+static int ovpn_new_iface(struct ovpn_ctx *ovpn)
+{
+	struct rtattr *linkinfo, *data;
+	struct ovpn_link_req req = { 0 };
+	int ret = -1;
+
+	fprintf(stdout, "Creating interface %s with mode %u\n", ovpn->ifname,
+		ovpn->mode);
+
+	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.i));
+	req.n.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE | NLM_F_EXCL;
+	req.n.nlmsg_type = RTM_NEWLINK;
+
+	if (ovpn_addattr(&req.n, sizeof(req), IFLA_IFNAME, ovpn->ifname,
+			 strlen(ovpn->ifname) + 1) < 0)
+		goto err;
+
+	linkinfo = ovpn_nest_start(&req.n, sizeof(req), IFLA_LINKINFO);
+	if (!linkinfo)
+		goto err;
+
+	if (ovpn_addattr(&req.n, sizeof(req), IFLA_INFO_KIND, OVPN_FAMILY_NAME,
+			 strlen(OVPN_FAMILY_NAME) + 1) < 0)
+		goto err;
+
+	if (ovpn->mode_set) {
+		data = ovpn_nest_start(&req.n, sizeof(req), IFLA_INFO_DATA);
+		if (!data)
+			goto err;
+
+		if (ovpn_addattr(&req.n, sizeof(req), IFLA_OVPN_MODE,
+				 &ovpn->mode, sizeof(uint8_t)) < 0)
+			goto err;
+
+		ovpn_nest_end(&req.n, data);
+	}
+
+	ovpn_nest_end(&req.n, linkinfo);
+
+	req.i.ifi_family = AF_PACKET;
+
+	ret = ovpn_rt_send(&req.n, 0, 0, NULL, NULL);
+err:
+	return ret;
+}
+
+static int ovpn_del_iface(struct ovpn_ctx *ovpn)
+{
+	struct ovpn_link_req req = { 0 };
+
+	fprintf(stdout, "Deleting interface %s ifindex %u\n", ovpn->ifname,
+		ovpn->ifindex);
+
+	req.n.nlmsg_len = NLMSG_LENGTH(sizeof(req.i));
+	req.n.nlmsg_flags = NLM_F_REQUEST;
+	req.n.nlmsg_type = RTM_DELLINK;
+
+	req.i.ifi_family = AF_PACKET;
+	req.i.ifi_index = ovpn->ifindex;
+
+	return ovpn_rt_send(&req.n, 0, 0, NULL, NULL);
+}
+
+static int nl_seq_check(struct nl_msg (*msg)__always_unused,
+			void (*arg)__always_unused)
+{
+	return NL_OK;
+}
+
+struct mcast_handler_args {
+	const char *group;
+	int id;
+};
+
+static int mcast_family_handler(struct nl_msg *msg, void *arg)
+{
+	struct mcast_handler_args *grp = arg;
+	struct nlattr *tb[CTRL_ATTR_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *mcgrp;
+	int rem_mcgrp;
+
+	nla_parse(tb, CTRL_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	if (!tb[CTRL_ATTR_MCAST_GROUPS])
+		return NL_SKIP;
+
+	nla_for_each_nested(mcgrp, tb[CTRL_ATTR_MCAST_GROUPS], rem_mcgrp) {
+		struct nlattr *tb_mcgrp[CTRL_ATTR_MCAST_GRP_MAX + 1];
+
+		nla_parse(tb_mcgrp, CTRL_ATTR_MCAST_GRP_MAX,
+			  nla_data(mcgrp), nla_len(mcgrp), NULL);
+
+		if (!tb_mcgrp[CTRL_ATTR_MCAST_GRP_NAME] ||
+		    !tb_mcgrp[CTRL_ATTR_MCAST_GRP_ID])
+			continue;
+		if (strncmp(nla_data(tb_mcgrp[CTRL_ATTR_MCAST_GRP_NAME]),
+			    grp->group, nla_len(tb_mcgrp[CTRL_ATTR_MCAST_GRP_NAME])))
+			continue;
+		grp->id = nla_get_u32(tb_mcgrp[CTRL_ATTR_MCAST_GRP_ID]);
+		break;
+	}
+
+	return NL_SKIP;
+}
+
+static int mcast_error_handler(struct sockaddr_nl (*nla)__always_unused,
+			       struct nlmsgerr *err, void *arg)
+{
+	int *ret = arg;
+
+	*ret = err->error;
+	return NL_STOP;
+}
+
+static int mcast_ack_handler(struct nl_msg (*msg)__always_unused, void *arg)
+{
+	int *ret = arg;
+
+	*ret = 0;
+	return NL_STOP;
+}
+
+static int ovpn_handle_msg(struct nl_msg *msg, void *arg)
+{
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *attrs[OVPN_A_MAX + 1];
+	struct nlmsghdr *nlh = nlmsg_hdr(msg);
+	char ifname[IF_NAMESIZE];
+	int *ret = arg;
+	__u32 ifindex;
+
+	fprintf(stderr, "received message from ovpn-dco\n");
+
+	*ret = -1;
+
+	if (!genlmsg_valid_hdr(nlh, 0)) {
+		fprintf(stderr, "invalid header\n");
+		return NL_STOP;
+	}
+
+	if (nla_parse(attrs, OVPN_A_MAX, genlmsg_attrdata(gnlh, 0),
+		      genlmsg_attrlen(gnlh, 0), NULL)) {
+		fprintf(stderr, "received bogus data from ovpn-dco\n");
+		return NL_STOP;
+	}
+
+	if (!attrs[OVPN_A_IFINDEX]) {
+		fprintf(stderr, "no ifindex in this message\n");
+		return NL_STOP;
+	}
+
+	ifindex = nla_get_u32(attrs[OVPN_A_IFINDEX]);
+	if (!if_indextoname(ifindex, ifname)) {
+		fprintf(stderr, "cannot resolve ifname for ifindex: %u\n",
+			ifindex);
+		return NL_STOP;
+	}
+
+	switch (gnlh->cmd) {
+	case OVPN_CMD_PEER_DEL_NTF:
+		fprintf(stdout, "received CMD_PEER_DEL_NTF\n");
+		break;
+	case OVPN_CMD_KEY_SWAP_NTF:
+		fprintf(stdout, "received CMD_KEY_SWAP_NTF\n");
+		break;
+	default:
+		fprintf(stderr, "received unknown command: %d\n", gnlh->cmd);
+		return NL_STOP;
+	}
+
+	*ret = 0;
+	return NL_OK;
+}
+
+static int ovpn_get_mcast_id(struct nl_sock *sock, const char *family,
+			     const char *group)
+{
+	struct nl_msg *msg;
+	struct nl_cb *cb;
+	int ret, ctrlid;
+	struct mcast_handler_args grp = {
+		.group = group,
+		.id = -ENOENT,
+	};
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return -ENOMEM;
+
+	cb = nl_cb_alloc(NL_CB_DEFAULT);
+	if (!cb) {
+		ret = -ENOMEM;
+		goto out_fail_cb;
+	}
+
+	ctrlid = genl_ctrl_resolve(sock, "nlctrl");
+
+	genlmsg_put(msg, 0, 0, ctrlid, 0, 0, CTRL_CMD_GETFAMILY, 0);
+
+	ret = -ENOBUFS;
+	NLA_PUT_STRING(msg, CTRL_ATTR_FAMILY_NAME, family);
+
+	ret = nl_send_auto_complete(sock, msg);
+	if (ret < 0)
+		goto nla_put_failure;
+
+	ret = 1;
+
+	nl_cb_err(cb, NL_CB_CUSTOM, mcast_error_handler, &ret);
+	nl_cb_set(cb, NL_CB_ACK, NL_CB_CUSTOM, mcast_ack_handler, &ret);
+	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, mcast_family_handler, &grp);
+
+	while (ret > 0)
+		nl_recvmsgs(sock, cb);
+
+	if (ret == 0)
+		ret = grp.id;
+ nla_put_failure:
+	nl_cb_put(cb);
+ out_fail_cb:
+	nlmsg_free(msg);
+	return ret;
+}
+
+static int ovpn_listen_mcast(void)
+{
+	struct nl_sock *sock;
+	struct nl_cb *cb;
+	int mcid, ret;
+
+	sock = nl_socket_alloc();
+	if (!sock) {
+		fprintf(stderr, "cannot allocate netlink socket\n");
+		ret = -ENOMEM;
+		goto err_free;
+	}
+
+	nl_socket_set_buffer_size(sock, 8192, 8192);
+
+	ret = genl_connect(sock);
+	if (ret < 0) {
+		fprintf(stderr, "cannot connect to generic netlink: %s\n",
+			nl_geterror(ret));
+		goto err_free;
+	}
+
+	mcid = ovpn_get_mcast_id(sock, OVPN_FAMILY_NAME, OVPN_MCGRP_PEERS);
+	if (mcid < 0) {
+		fprintf(stderr, "cannot get mcast group: %s\n",
+			nl_geterror(mcid));
+		goto err_free;
+	}
+
+	ret = nl_socket_add_membership(sock, mcid);
+	if (ret) {
+		fprintf(stderr, "failed to join mcast group: %d\n", ret);
+		goto err_free;
+	}
+
+	ret = 1;
+	cb = nl_cb_alloc(NL_CB_DEFAULT);
+	nl_cb_set(cb, NL_CB_SEQ_CHECK, NL_CB_CUSTOM, nl_seq_check, NULL);
+	nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, ovpn_handle_msg, &ret);
+	nl_cb_err(cb, NL_CB_CUSTOM, ovpn_nl_cb_error, &ret);
+
+	while (ret == 1) {
+		int err = nl_recvmsgs(sock, cb);
+
+		if (err < 0) {
+			fprintf(stderr,
+				"cannot receive netlink message: (%d) %s\n",
+				err, nl_geterror(-err));
+			ret = -1;
+			break;
+		}
+	}
+
+	nl_cb_put(cb);
+err_free:
+	nl_socket_free(sock);
+	return ret;
+}
+
+static void usage(const char *cmd)
+{
+	fprintf(stderr,
+		"Usage %s <command> <iface> [arguments..]\n",
+		cmd);
+	fprintf(stderr, "where <command> can be one of the following\n\n");
+
+	fprintf(stderr, "* new_iface <iface> [mode]: create new ovpn interface\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tmode:\n");
+	fprintf(stderr, "\t\t- P2P for peer-to-peer mode (i.e. client)\n");
+	fprintf(stderr, "\t\t- MP for multi-peer mode (i.e. server)\n");
+
+	fprintf(stderr, "* del_iface <iface>: delete ovpn interface\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+
+	fprintf(stderr,
+		"* listen <iface> <lport> <peers_file> [ipv6]: listen for incoming peer TCP connections\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tlport: TCP port to listen to\n");
+	fprintf(stderr,
+		"\tpeers_file: file containing one peer per line: Line format:\n");
+	fprintf(stderr, "\t\t<peer_id> <vpnaddr>\n");
+	fprintf(stderr,
+		"\tipv6: whether the socket should listen to the IPv6 wildcard address\n");
+
+	fprintf(stderr,
+		"* connect <iface> <peer_id> <raddr> <rport> [key_file]: start connecting peer of TCP-based VPN session\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the connecting peer\n");
+	fprintf(stderr, "\traddr: peer IP address to connect to\n");
+	fprintf(stderr, "\trport: peer TCP port to connect to\n");
+	fprintf(stderr,
+		"\tkey_file: file containing the symmetric key for encryption\n");
+
+	fprintf(stderr,
+		"* new_peer <iface> <peer_id> <lport> <raddr> <rport> [vpnaddr]: add new peer\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tlport: local UDP port to bind to\n");
+	fprintf(stderr,
+		"\tpeer_id: peer ID to be used in data packets to/from this peer\n");
+	fprintf(stderr, "\traddr: peer IP address\n");
+	fprintf(stderr, "\trport: peer UDP port\n");
+	fprintf(stderr, "\tvpnaddr: peer VPN IP\n");
+
+	fprintf(stderr,
+		"* new_multi_peer <iface> <lport> <peers_file>: add multiple peers as listed in the file\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tlport: local UDP port to bind to\n");
+	fprintf(stderr,
+		"\tpeers_file: text file containing one peer per line. Line format:\n");
+	fprintf(stderr, "\t\t<peer_id> <raddr> <rport> <vpnaddr>\n");
+
+	fprintf(stderr,
+		"* set_peer <iface> <peer_id> <keepalive_interval> <keepalive_timeout>: set peer attributes\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the peer to modify\n");
+	fprintf(stderr,
+		"\tkeepalive_interval: interval for sending ping messages\n");
+	fprintf(stderr,
+		"\tkeepalive_timeout: time after which a peer is timed out\n");
+
+	fprintf(stderr, "* del_peer <iface> <peer_id>: delete peer\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the peer to delete\n");
+
+	fprintf(stderr, "* get_peer <iface> [peer_id]: retrieve peer(s) status\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr,
+		"\tpeer_id: peer ID of the peer to query. All peers are returned if omitted\n");
+
+	fprintf(stderr,
+		"* new_key <iface> <peer_id> <slot> <key_id> <cipher> <key_dir> <key_file>: set data channel key\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr,
+		"\tpeer_id: peer ID of the peer to configure the key for\n");
+	fprintf(stderr, "\tslot: either 1 (primary) or 2 (secondary)\n");
+	fprintf(stderr, "\tkey_id: an ID from 0 to 7\n");
+	fprintf(stderr,
+		"\tcipher: cipher to use, supported: aes (AES-GCM), chachapoly (CHACHA20POLY1305)\n");
+	fprintf(stderr,
+		"\tkey_dir: key direction, must 0 on one host and 1 on the other\n");
+	fprintf(stderr, "\tkey_file: file containing the pre-shared key\n");
+
+	fprintf(stderr,
+		"* del_key <iface> <peer_id> [slot]: erase existing data channel key\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the peer to modify\n");
+	fprintf(stderr, "\tslot: slot to erase. PRIMARY if omitted\n");
+
+	fprintf(stderr,
+		"* get_key <iface> <peer_id> <slot>: retrieve non sensible key data\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the peer to query\n");
+	fprintf(stderr, "\tslot: either 1 (primary) or 2 (secondary)\n");
+
+	fprintf(stderr,
+		"* swap_keys <iface> <peer_id>: swap content of primary and secondary key slots\n");
+	fprintf(stderr, "\tiface: ovpn interface name\n");
+	fprintf(stderr, "\tpeer_id: peer ID of the peer to modify\n");
+
+	fprintf(stderr,
+		"* listen_mcast: listen to ovpn netlink multicast messages\n");
+}
+
+static int ovpn_parse_remote(struct ovpn_ctx *ovpn, const char *host,
+			     const char *service, const char *vpnip)
+{
+	int ret;
+	struct addrinfo *result;
+	struct addrinfo hints = {
+		.ai_family = ovpn->sa_family,
+		.ai_socktype = SOCK_DGRAM,
+		.ai_protocol = IPPROTO_UDP
+	};
+
+	if (host) {
+		ret = getaddrinfo(host, service, &hints, &result);
+		if (ret) {
+			fprintf(stderr, "getaddrinfo on remote error: %s\n",
+				gai_strerror(ret));
+			return -1;
+		}
+
+		if (!(result->ai_family == AF_INET &&
+		      result->ai_addrlen == sizeof(struct sockaddr_in)) &&
+		    !(result->ai_family == AF_INET6 &&
+		      result->ai_addrlen == sizeof(struct sockaddr_in6))) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		memcpy(&ovpn->remote, result->ai_addr, result->ai_addrlen);
+	}
+
+	if (vpnip) {
+		ret = getaddrinfo(vpnip, NULL, &hints, &result);
+		if (ret) {
+			fprintf(stderr, "getaddrinfo on vpnip error: %s\n",
+				gai_strerror(ret));
+			return -1;
+		}
+
+		if (!(result->ai_family == AF_INET &&
+		      result->ai_addrlen == sizeof(struct sockaddr_in)) &&
+		    !(result->ai_family == AF_INET6 &&
+		      result->ai_addrlen == sizeof(struct sockaddr_in6))) {
+			ret = -EINVAL;
+			goto out;
+		}
+
+		memcpy(&ovpn->peer_ip, result->ai_addr, result->ai_addrlen);
+		ovpn->sa_family = result->ai_family;
+
+		ovpn->peer_ip_set = true;
+	}
+
+	ret = 0;
+out:
+	freeaddrinfo(result);
+	return ret;
+}
+
+static int ovpn_parse_new_peer(struct ovpn_ctx *ovpn, const char *peer_id,
+			       const char *raddr, const char *rport,
+			       const char *vpnip)
+{
+	ovpn->peer_id = strtoul(peer_id, NULL, 10);
+	if (errno == ERANGE || ovpn->peer_id > PEER_ID_UNDEF) {
+		fprintf(stderr, "peer ID value out of range\n");
+		return -1;
+	}
+
+	return ovpn_parse_remote(ovpn, raddr, rport, vpnip);
+}
+
+static int ovpn_parse_key_slot(const char *arg, struct ovpn_ctx *ovpn)
+{
+	int slot = strtoul(arg, NULL, 10);
+
+	if (errno == ERANGE || slot < 1 || slot > 2) {
+		fprintf(stderr, "key slot out of range\n");
+		return -1;
+	}
+
+	switch (slot) {
+	case 1:
+		ovpn->key_slot = OVPN_KEY_SLOT_PRIMARY;
+		break;
+	case 2:
+		ovpn->key_slot = OVPN_KEY_SLOT_SECONDARY;
+		break;
+	}
+
+	return 0;
+}
+
+static int ovpn_send_tcp_data(int socket)
+{
+	uint16_t len = htons(1000);
+	uint8_t buf[1002];
+	int ret;
+
+	memcpy(buf, &len, sizeof(len));
+	memset(buf + sizeof(len), 0x86, sizeof(buf) - sizeof(len));
+
+	ret = send(socket, buf, sizeof(buf), MSG_NOSIGNAL);
+
+	fprintf(stdout, "Sent %u bytes over TCP socket\n", ret);
+
+	return ret > 0 ? 0 : ret;
+}
+
+static int ovpn_recv_tcp_data(int socket)
+{
+	uint8_t buf[1002];
+	uint16_t len;
+	int ret;
+
+	ret = recv(socket, buf, sizeof(buf), MSG_NOSIGNAL);
+
+	if (ret < 2) {
+		fprintf(stderr, ">>>> Error while reading TCP data: %d\n", ret);
+		return ret;
+	}
+
+	memcpy(&len, buf, sizeof(len));
+	len = ntohs(len);
+
+	fprintf(stdout, ">>>> Received %u bytes over TCP socket, header: %u\n",
+		ret, len);
+
+	return 0;
+}
+
+static enum ovpn_cmd ovpn_parse_cmd(const char *cmd)
+{
+	if (!strcmp(cmd, "new_iface"))
+		return CMD_NEW_IFACE;
+
+	if (!strcmp(cmd, "del_iface"))
+		return CMD_DEL_IFACE;
+
+	if (!strcmp(cmd, "listen"))
+		return CMD_LISTEN;
+
+	if (!strcmp(cmd, "connect"))
+		return CMD_CONNECT;
+
+	if (!strcmp(cmd, "new_peer"))
+		return CMD_NEW_PEER;
+
+	if (!strcmp(cmd, "new_multi_peer"))
+		return CMD_NEW_MULTI_PEER;
+
+	if (!strcmp(cmd, "set_peer"))
+		return CMD_SET_PEER;
+
+	if (!strcmp(cmd, "del_peer"))
+		return CMD_DEL_PEER;
+
+	if (!strcmp(cmd, "get_peer"))
+		return CMD_GET_PEER;
+
+	if (!strcmp(cmd, "new_key"))
+		return CMD_NEW_KEY;
+
+	if (!strcmp(cmd, "del_key"))
+		return CMD_DEL_KEY;
+
+	if (!strcmp(cmd, "get_key"))
+		return CMD_GET_KEY;
+
+	if (!strcmp(cmd, "swap_keys"))
+		return CMD_SWAP_KEYS;
+
+	if (!strcmp(cmd, "listen_mcast"))
+		return CMD_LISTEN_MCAST;
+
+	return CMD_INVALID;
+}
+
+/* Send process to background and waits for signal.
+ *
+ * This helper is called at the end of commands
+ * creating sockets, so that the latter stay alive
+ * along with the process that created them.
+ *
+ * A signal is expected to be delivered in order to
+ * terminate the waiting processes
+ */
+static void ovpn_waitbg(void)
+{
+	daemon(1, 1);
+	pause();
+}
+
+static int ovpn_run_cmd(struct ovpn_ctx *ovpn)
+{
+	char peer_id[10], vpnip[INET6_ADDRSTRLEN], laddr[128], lport[10];
+	char raddr[128], rport[10];
+	int n, ret;
+	FILE *fp;
+
+	switch (ovpn->cmd) {
+	case CMD_NEW_IFACE:
+		ret = ovpn_new_iface(ovpn);
+		break;
+	case CMD_DEL_IFACE:
+		ret = ovpn_del_iface(ovpn);
+		break;
+	case CMD_LISTEN:
+		ret = ovpn_listen(ovpn, ovpn->sa_family);
+		if (ret < 0) {
+			fprintf(stderr, "cannot listen on TCP socket\n");
+			return ret;
+		}
+
+		fp = fopen(ovpn->peers_file, "r");
+		if (!fp) {
+			fprintf(stderr, "cannot open file: %s\n",
+				ovpn->peers_file);
+			return -1;
+		}
+
+		int num_peers = 0;
+
+		while ((n = fscanf(fp, "%s %s\n", peer_id, vpnip)) == 2) {
+			struct ovpn_ctx peer_ctx = { 0 };
+
+			if (num_peers == MAX_PEERS) {
+				fprintf(stderr, "max peers reached!\n");
+				return -E2BIG;
+			}
+
+			peer_ctx.ifindex = ovpn->ifindex;
+			peer_ctx.sa_family = ovpn->sa_family;
+
+			peer_ctx.socket = ovpn_accept(ovpn);
+			if (peer_ctx.socket < 0) {
+				fprintf(stderr, "cannot accept connection!\n");
+				return -1;
+			}
+
+			/* store peer sockets to test TCP I/O */
+			ovpn->cli_sockets[num_peers] = peer_ctx.socket;
+
+			ret = ovpn_parse_new_peer(&peer_ctx, peer_id, NULL,
+						  NULL, vpnip);
+			if (ret < 0) {
+				fprintf(stderr, "error while parsing line\n");
+				return -1;
+			}
+
+			ret = ovpn_new_peer(&peer_ctx, true);
+			if (ret < 0) {
+				fprintf(stderr,
+					"cannot add peer to VPN: %s %s\n",
+					peer_id, vpnip);
+				return ret;
+			}
+			num_peers++;
+		}
+
+		for (int i = 0; i < num_peers; i++) {
+			ret = ovpn_recv_tcp_data(ovpn->cli_sockets[i]);
+			if (ret < 0)
+				break;
+		}
+		ovpn_waitbg();
+		break;
+	case CMD_CONNECT:
+		ret = ovpn_connect(ovpn);
+		if (ret < 0) {
+			fprintf(stderr, "cannot connect TCP socket\n");
+			return ret;
+		}
+
+		ret = ovpn_new_peer(ovpn, true);
+		if (ret < 0) {
+			fprintf(stderr, "cannot add peer to VPN\n");
+			close(ovpn->socket);
+			return ret;
+		}
+
+		if (ovpn->cipher != OVPN_CIPHER_ALG_NONE) {
+			ret = ovpn_new_key(ovpn);
+			if (ret < 0) {
+				fprintf(stderr, "cannot set key\n");
+				return ret;
+			}
+		}
+
+		ret = ovpn_send_tcp_data(ovpn->socket);
+		ovpn_waitbg();
+		break;
+	case CMD_NEW_PEER:
+		ret = ovpn_udp_socket(ovpn, AF_INET6);
+		if (ret < 0)
+			return ret;
+
+		ret = ovpn_new_peer(ovpn, false);
+		ovpn_waitbg();
+		break;
+	case CMD_NEW_MULTI_PEER:
+		ret = ovpn_udp_socket(ovpn, AF_INET6);
+		if (ret < 0)
+			return ret;
+
+		fp = fopen(ovpn->peers_file, "r");
+		if (!fp) {
+			fprintf(stderr, "cannot open file: %s\n",
+				ovpn->peers_file);
+			return -1;
+		}
+
+		while ((n = fscanf(fp, "%s %s %s %s %s %s\n", peer_id, laddr,
+				   lport, raddr, rport, vpnip)) == 6) {
+			struct ovpn_ctx peer_ctx = { 0 };
+
+			peer_ctx.ifindex = ovpn->ifindex;
+			peer_ctx.socket = ovpn->socket;
+			peer_ctx.sa_family = AF_UNSPEC;
+
+			ret = ovpn_parse_new_peer(&peer_ctx, peer_id, raddr,
+						  rport, vpnip);
+			if (ret < 0) {
+				fprintf(stderr, "error while parsing line\n");
+				return -1;
+			}
+
+			ret = ovpn_new_peer(&peer_ctx, false);
+			if (ret < 0) {
+				fprintf(stderr,
+					"cannot add peer to VPN: %s %s %s %s\n",
+					peer_id, raddr, rport, vpnip);
+				return ret;
+			}
+		}
+		ovpn_waitbg();
+		break;
+	case CMD_SET_PEER:
+		ret = ovpn_set_peer(ovpn);
+		break;
+	case CMD_DEL_PEER:
+		ret = ovpn_del_peer(ovpn);
+		break;
+	case CMD_GET_PEER:
+		if (ovpn->peer_id == PEER_ID_UNDEF)
+			fprintf(stderr, "List of peers connected to: %s\n",
+				ovpn->ifname);
+
+		ret = ovpn_get_peer(ovpn);
+		break;
+	case CMD_NEW_KEY:
+		ret = ovpn_new_key(ovpn);
+		break;
+	case CMD_DEL_KEY:
+		ret = ovpn_del_key(ovpn);
+		break;
+	case CMD_GET_KEY:
+		ret = ovpn_get_key(ovpn);
+		break;
+	case CMD_SWAP_KEYS:
+		ret = ovpn_swap_keys(ovpn);
+		break;
+	case CMD_LISTEN_MCAST:
+		ret = ovpn_listen_mcast();
+		break;
+	case CMD_INVALID:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int ovpn_parse_cmd_args(struct ovpn_ctx *ovpn, int argc, char *argv[])
+{
+	int ret;
+
+	/* no args required for LISTEN_MCAST */
+	if (ovpn->cmd == CMD_LISTEN_MCAST)
+		return 0;
+
+	/* all commands need an ifname */
+	if (argc < 3)
+		return -EINVAL;
+
+	strscpy(ovpn->ifname, argv[2], IFNAMSIZ - 1);
+	ovpn->ifname[IFNAMSIZ - 1] = '\0';
+
+	/* all commands, except NEW_IFNAME, needs an ifindex */
+	if (ovpn->cmd != CMD_NEW_IFACE) {
+		ovpn->ifindex = if_nametoindex(ovpn->ifname);
+		if (!ovpn->ifindex) {
+			fprintf(stderr, "cannot find interface: %s\n",
+				strerror(errno));
+			return -1;
+		}
+	}
+
+	switch (ovpn->cmd) {
+	case CMD_NEW_IFACE:
+		if (argc < 4)
+			break;
+
+		if (!strcmp(argv[3], "P2P")) {
+			ovpn->mode = OVPN_MODE_P2P;
+		} else if (!strcmp(argv[3], "MP")) {
+			ovpn->mode = OVPN_MODE_MP;
+		} else {
+			fprintf(stderr, "Cannot parse iface mode: %s\n",
+				argv[3]);
+			return -1;
+		}
+		ovpn->mode_set = true;
+		break;
+	case CMD_DEL_IFACE:
+		break;
+	case CMD_LISTEN:
+		if (argc < 5)
+			return -EINVAL;
+
+		ovpn->lport = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE || ovpn->lport > 65535) {
+			fprintf(stderr, "lport value out of range\n");
+			return -1;
+		}
+
+		ovpn->peers_file = argv[4];
+
+		ovpn->sa_family = AF_INET;
+		if (argc > 5 && !strcmp(argv[5], "ipv6"))
+			ovpn->sa_family = AF_INET6;
+		break;
+	case CMD_CONNECT:
+		if (argc < 6)
+			return -EINVAL;
+
+		ovpn->sa_family = AF_INET;
+
+		ret = ovpn_parse_new_peer(ovpn, argv[3], argv[4], argv[5],
+					  NULL);
+		if (ret < 0) {
+			fprintf(stderr, "Cannot parse remote peer data\n");
+			return -1;
+		}
+
+		if (argc > 6) {
+			ovpn->key_slot = OVPN_KEY_SLOT_PRIMARY;
+			ovpn->key_id = 0;
+			ovpn->cipher = OVPN_CIPHER_ALG_AES_GCM;
+			ovpn->key_dir = KEY_DIR_OUT;
+
+			ret = ovpn_parse_key(argv[6], ovpn);
+			if (ret)
+				return -1;
+		}
+		break;
+	case CMD_NEW_PEER:
+		if (argc < 7)
+			return -EINVAL;
+
+		ovpn->lport = strtoul(argv[4], NULL, 10);
+		if (errno == ERANGE || ovpn->lport > 65535) {
+			fprintf(stderr, "lport value out of range\n");
+			return -1;
+		}
+
+		const char *vpnip = (argc > 7) ? argv[7] : NULL;
+
+		ret = ovpn_parse_new_peer(ovpn, argv[3], argv[5], argv[6],
+					  vpnip);
+		if (ret < 0)
+			return -1;
+		break;
+	case CMD_NEW_MULTI_PEER:
+		if (argc < 5)
+			return -EINVAL;
+
+		ovpn->lport = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE || ovpn->lport > 65535) {
+			fprintf(stderr, "lport value out of range\n");
+			return -1;
+		}
+
+		ovpn->peers_file = argv[4];
+		break;
+	case CMD_SET_PEER:
+		if (argc < 6)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE || ovpn->peer_id > PEER_ID_UNDEF) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+
+		ovpn->keepalive_interval = strtoul(argv[4], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr,
+				"keepalive interval value out of range\n");
+			return -1;
+		}
+
+		ovpn->keepalive_timeout = strtoul(argv[5], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr,
+				"keepalive interval value out of range\n");
+			return -1;
+		}
+		break;
+	case CMD_DEL_PEER:
+		if (argc < 4)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE || ovpn->peer_id > PEER_ID_UNDEF) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+		break;
+	case CMD_GET_PEER:
+		ovpn->peer_id = PEER_ID_UNDEF;
+		if (argc > 3) {
+			ovpn->peer_id = strtoul(argv[3], NULL, 10);
+			if (errno == ERANGE || ovpn->peer_id > PEER_ID_UNDEF) {
+				fprintf(stderr, "peer ID value out of range\n");
+				return -1;
+			}
+		}
+		break;
+	case CMD_NEW_KEY:
+		if (argc < 9)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+
+		ret = ovpn_parse_key_slot(argv[4], ovpn);
+		if (ret)
+			return -1;
+
+		ovpn->key_id = strtoul(argv[5], NULL, 10);
+		if (errno == ERANGE || ovpn->key_id > 2) {
+			fprintf(stderr, "key ID out of range\n");
+			return -1;
+		}
+
+		ret = ovpn_parse_cipher(argv[6], ovpn);
+		if (ret < 0)
+			return -1;
+
+		ret = ovpn_parse_key_direction(argv[7], ovpn);
+		if (ret < 0)
+			return -1;
+
+		ret = ovpn_parse_key(argv[8], ovpn);
+		if (ret)
+			return -1;
+		break;
+	case CMD_DEL_KEY:
+		if (argc < 4)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+
+		ret = ovpn_parse_key_slot(argv[4], ovpn);
+		if (ret)
+			return ret;
+		break;
+	case CMD_GET_KEY:
+		if (argc < 5)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+
+		ret = ovpn_parse_key_slot(argv[4], ovpn);
+		if (ret)
+			return ret;
+		break;
+	case CMD_SWAP_KEYS:
+		if (argc < 4)
+			return -EINVAL;
+
+		ovpn->peer_id = strtoul(argv[3], NULL, 10);
+		if (errno == ERANGE) {
+			fprintf(stderr, "peer ID value out of range\n");
+			return -1;
+		}
+		break;
+	case CMD_LISTEN_MCAST:
+		break;
+	case CMD_INVALID:
+		break;
+	}
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct ovpn_ctx ovpn;
+	int ret;
+
+	if (argc < 2) {
+		usage(argv[0]);
+		return -1;
+	}
+
+	memset(&ovpn, 0, sizeof(ovpn));
+	ovpn.sa_family = AF_UNSPEC;
+	ovpn.cipher = OVPN_CIPHER_ALG_NONE;
+
+	ovpn.cmd = ovpn_parse_cmd(argv[1]);
+	if (ovpn.cmd == CMD_INVALID) {
+		fprintf(stderr, "Error: unknown command.\n\n");
+		usage(argv[0]);
+		return -1;
+	}
+
+	ret = ovpn_parse_cmd_args(&ovpn, argc, argv);
+	if (ret < 0) {
+		fprintf(stderr, "Error: invalid arguments.\n\n");
+		if (ret == -EINVAL)
+			usage(argv[0]);
+		return ret;
+	}
+
+	ret = ovpn_run_cmd(&ovpn);
+	if (ret)
+		fprintf(stderr, "Cannot execute command: %s (%d)\n",
+			strerror(-ret), ret);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/net/ovpn/tcp_peers.txt b/tools/testing/selftests/net/ovpn/tcp_peers.txt
new file mode 100644
index 000000000000..d753eebe8716
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/tcp_peers.txt
@@ -0,0 +1,5 @@
+1 5.5.5.2
+2 5.5.5.3
+3 5.5.5.4
+4 5.5.5.5
+5 5.5.5.6
diff --git a/tools/testing/selftests/net/ovpn/test-chachapoly.sh b/tools/testing/selftests/net/ovpn/test-chachapoly.sh
new file mode 100755
index 000000000000..32504079a2b8
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-chachapoly.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+ALG="chachapoly"
+
+source test.sh
diff --git a/tools/testing/selftests/net/ovpn/test-close-socket-tcp.sh b/tools/testing/selftests/net/ovpn/test-close-socket-tcp.sh
new file mode 100755
index 000000000000..093d44772ffd
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-close-socket-tcp.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+PROTO="TCP"
+
+source test-close-socket.sh
diff --git a/tools/testing/selftests/net/ovpn/test-close-socket.sh b/tools/testing/selftests/net/ovpn/test-close-socket.sh
new file mode 100755
index 000000000000..5e48a8b67928
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-close-socket.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020-2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+#set -x
+set -e
+
+source ./common.sh
+
+cleanup
+
+modprobe -q ovpn || true
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	create_ns ${p}
+done
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	setup_ns ${p} 5.5.5.$((${p} + 1))/24
+done
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	add_peer ${p}
+done
+
+for p in $(seq 1 ${NUM_PEERS}); do
+	ip netns exec peer0 ${OVPN_CLI} set_peer tun0 ${p} 60 120
+	ip netns exec peer${p} ${OVPN_CLI} set_peer tun${p} ${p} 60 120
+done
+
+sleep 1
+
+for p in $(seq 1 ${NUM_PEERS}); do
+	ip netns exec peer0 ping -qfc 500 -w 3 5.5.5.$((${p} + 1))
+done
+
+ip netns exec peer0 iperf3 -1 -s &
+sleep 1
+ip netns exec peer1 iperf3 -Z -t 3 -c 5.5.5.1
+
+cleanup
+
+modprobe -r ovpn || true
diff --git a/tools/testing/selftests/net/ovpn/test-float.sh b/tools/testing/selftests/net/ovpn/test-float.sh
new file mode 100755
index 000000000000..ba5d725e18b0
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-float.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+FLOAT="1"
+
+source test.sh
diff --git a/tools/testing/selftests/net/ovpn/test-large-mtu.sh b/tools/testing/selftests/net/ovpn/test-large-mtu.sh
new file mode 100755
index 000000000000..ce2a2cb64f72
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-large-mtu.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+MTU="1500"
+
+source test.sh
diff --git a/tools/testing/selftests/net/ovpn/test-tcp.sh b/tools/testing/selftests/net/ovpn/test-tcp.sh
new file mode 100755
index 000000000000..ba3f1f315a34
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test-tcp.sh
@@ -0,0 +1,9 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+PROTO="TCP"
+
+source test.sh
diff --git a/tools/testing/selftests/net/ovpn/test.sh b/tools/testing/selftests/net/ovpn/test.sh
new file mode 100755
index 000000000000..e8acdc303307
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/test.sh
@@ -0,0 +1,117 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020-2025 OpenVPN, Inc.
+#
+#  Author:	Antonio Quartulli <antonio@openvpn.net>
+
+#set -x
+set -e
+
+source ./common.sh
+
+cleanup
+
+modprobe -q ovpn || true
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	create_ns ${p}
+done
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	setup_ns ${p} 5.5.5.$((${p} + 1))/24 ${MTU}
+done
+
+for p in $(seq 0 ${NUM_PEERS}); do
+	add_peer ${p}
+done
+
+for p in $(seq 1 ${NUM_PEERS}); do
+	ip netns exec peer0 ${OVPN_CLI} set_peer tun0 ${p} 60 120
+	ip netns exec peer${p} ${OVPN_CLI} set_peer tun${p} ${p} 60 120
+done
+
+sleep 1
+
+for p in $(seq 1 ${NUM_PEERS}); do
+	ip netns exec peer0 ping -qfc 500 -w 3 5.5.5.$((${p} + 1))
+	ip netns exec peer0 ping -qfc 500 -s 3000 -w 3 5.5.5.$((${p} + 1))
+done
+
+# ping LAN behind client 1
+ip netns exec peer0 ping -qfc 500 -w 3 ${LAN_IP}
+
+if [ "$FLOAT" == "1" ]; then
+	# make clients float..
+	for p in $(seq 1 ${NUM_PEERS}); do
+		ip -n peer${p} addr del 10.10.${p}.2/24 dev veth${p}
+		ip -n peer${p} addr add 10.10.${p}.3/24 dev veth${p}
+	done
+	for p in $(seq 1 ${NUM_PEERS}); do
+		ip netns exec peer${p} ping -qfc 500 -w 3 5.5.5.1
+	done
+fi
+
+ip netns exec peer0 iperf3 -1 -s &
+sleep 1
+ip netns exec peer1 iperf3 -Z -t 3 -c 5.5.5.1
+
+echo "Adding secondary key and then swap:"
+for p in $(seq 1 ${NUM_PEERS}); do
+	ip netns exec peer0 ${OVPN_CLI} new_key tun0 ${p} 2 1 ${ALG} 0 data64.key
+	ip netns exec peer${p} ${OVPN_CLI} new_key tun${p} ${p} 2 1 ${ALG} 1 data64.key
+	ip netns exec peer${p} ${OVPN_CLI} swap_keys tun${p} ${p}
+done
+
+sleep 1
+
+echo "Querying all peers:"
+ip netns exec peer0 ${OVPN_CLI} get_peer tun0
+ip netns exec peer1 ${OVPN_CLI} get_peer tun1
+
+echo "Querying peer 1:"
+ip netns exec peer0 ${OVPN_CLI} get_peer tun0 1
+
+echo "Querying non-existent peer 10:"
+ip netns exec peer0 ${OVPN_CLI} get_peer tun0 10 || true
+
+echo "Deleting peer 1:"
+ip netns exec peer0 ${OVPN_CLI} del_peer tun0 1
+ip netns exec peer1 ${OVPN_CLI} del_peer tun1 1
+
+echo "Querying keys:"
+for p in $(seq 2 ${NUM_PEERS}); do
+	ip netns exec peer${p} ${OVPN_CLI} get_key tun${p} ${p} 1
+	ip netns exec peer${p} ${OVPN_CLI} get_key tun${p} ${p} 2
+done
+
+echo "Deleting peer while sending traffic:"
+(ip netns exec peer2 ping -qf -w 4 5.5.5.1)&
+sleep 2
+ip netns exec peer0 ${OVPN_CLI} del_peer tun0 2
+# following command fails in TCP mode
+# (both ends get conn reset when one peer disconnects)
+ip netns exec peer2 ${OVPN_CLI} del_peer tun2 2 || true
+
+echo "Deleting keys:"
+for p in $(seq 3 ${NUM_PEERS}); do
+	ip netns exec peer${p} ${OVPN_CLI} del_key tun${p} ${p} 1
+	ip netns exec peer${p} ${OVPN_CLI} del_key tun${p} ${p} 2
+done
+
+echo "Setting timeout to 3s MP:"
+for p in $(seq 3 ${NUM_PEERS}); do
+	ip netns exec peer0 ${OVPN_CLI} set_peer tun0 ${p} 3 3 || true
+	ip netns exec peer${p} ${OVPN_CLI} set_peer tun${p} ${p} 0 0
+done
+# wait for peers to timeout
+sleep 5
+
+echo "Setting timeout to 3s P2P:"
+for p in $(seq 3 ${NUM_PEERS}); do
+	ip netns exec peer${p} ${OVPN_CLI} set_peer tun${p} ${p} 3 3
+done
+sleep 5
+
+cleanup
+
+modprobe -r ovpn || true
diff --git a/tools/testing/selftests/net/ovpn/udp_peers.txt b/tools/testing/selftests/net/ovpn/udp_peers.txt
new file mode 100644
index 000000000000..e9773ddf875c
--- /dev/null
+++ b/tools/testing/selftests/net/ovpn/udp_peers.txt
@@ -0,0 +1,6 @@
+1 10.10.1.1 1 10.10.1.2 1 5.5.5.2
+2 10.10.2.1 1 10.10.2.2 1 5.5.5.3
+3 10.10.3.1 1 10.10.3.2 1 5.5.5.4
+4 fd00:0:0:4::1 1 fd00:0:0:4::2 1 5.5.5.5
+5 fd00:0:0:5::1 1 fd00:0:0:5::2 1 5.5.5.6
+6 fd00:0:0:6::1 1 fd00:0:0:6::2 1 5.5.5.7
diff --git a/tools/testing/selftests/net/packetdrill/Makefile b/tools/testing/selftests/net/packetdrill/Makefile
new file mode 100644
index 000000000000..ff54641493e9
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_INCLUDES := \
+	defaults.sh \
+	ksft_runner.sh \
+	set_sysctls.py \
+	../../kselftest/ktap_helpers.sh \
+# end of TEST_INCLUDES
+
+TEST_PROGS := $(wildcard *.pkt)
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/packetdrill/config b/tools/testing/selftests/net/packetdrill/config
new file mode 100644
index 000000000000..c4a19a785521
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/config
@@ -0,0 +1,11 @@
+CONFIG_HZ=1000
+CONFIG_HZ_1000=y
+CONFIG_IPV6=y
+CONFIG_NET_NS=y
+CONFIG_NET_SCH_FIFO=y
+CONFIG_NET_SCH_FQ=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYN_COOKIES=y
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TUN=y
diff --git a/tools/testing/selftests/net/packetdrill/defaults.sh b/tools/testing/selftests/net/packetdrill/defaults.sh
new file mode 100755
index 000000000000..37edd3dc3b07
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/defaults.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Set standard production config values that relate to TCP behavior.
+
+# Flush old cached data (fastopen cookies).
+ip tcp_metrics flush all > /dev/null 2>&1
+
+# TCP min, default, and max receive and send buffer sizes.
+sysctl -q net.ipv4.tcp_rmem="4096 540000 $((15*1024*1024))"
+sysctl -q net.ipv4.tcp_wmem="4096 $((256*1024)) 4194304"
+
+# TCP timestamps.
+sysctl -q net.ipv4.tcp_timestamps=1
+
+# TCP SYN(ACK) retry thresholds
+sysctl -q net.ipv4.tcp_syn_retries=5
+sysctl -q net.ipv4.tcp_synack_retries=5
+
+# TCP Forward RTO-Recovery, RFC 5682.
+sysctl -q net.ipv4.tcp_frto=2
+
+# TCP Selective Acknowledgements (SACK)
+sysctl -q net.ipv4.tcp_sack=1
+
+# TCP Duplicate Selective Acknowledgements (DSACK)
+sysctl -q net.ipv4.tcp_dsack=1
+
+# TCP FACK (Forward Acknowldgement)
+sysctl -q net.ipv4.tcp_fack=0
+
+# TCP reordering degree ("dupthresh" threshold for entering Fast Recovery).
+sysctl -q net.ipv4.tcp_reordering=3
+
+# TCP congestion control.
+sysctl -q net.ipv4.tcp_congestion_control=cubic
+
+# TCP slow start after idle.
+sysctl -q net.ipv4.tcp_slow_start_after_idle=0
+
+# TCP RACK and TLP.
+sysctl -q net.ipv4.tcp_early_retrans=4 net.ipv4.tcp_recovery=1
+
+# TCP method for deciding when to defer sending to accumulate big TSO packets.
+sysctl -q net.ipv4.tcp_tso_win_divisor=3
+
+# TCP Explicit Congestion Notification (ECN)
+sysctl -q net.ipv4.tcp_ecn=0
+
+sysctl -q net.ipv4.tcp_pacing_ss_ratio=200
+sysctl -q net.ipv4.tcp_pacing_ca_ratio=120
+sysctl -q net.ipv4.tcp_notsent_lowat=4294967295 > /dev/null 2>&1
+
+sysctl -q net.ipv4.tcp_fastopen=0x3
+# Use TFO_COOKIE in ksft_runner.sh for this key.
+sysctl -q net.ipv4.tcp_fastopen_key=a1a1a1a1-b2b2b2b2-c3c3c3c3-d4d4d4d4
+
+sysctl -q net.ipv4.tcp_syncookies=1
+
+# Override the default qdisc on the tun device.
+# Many tests fail with timing errors if the default
+# is FQ and that paces their flows.
+tc qdisc add dev tun0 root pfifo
+
diff --git a/tools/testing/selftests/net/packetdrill/ksft_runner.sh b/tools/testing/selftests/net/packetdrill/ksft_runner.sh
new file mode 100755
index 000000000000..b34e5cf0112e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/ksft_runner.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source "$(dirname $(realpath $0))/../../kselftest/ktap_helpers.sh"
+
+declare -A ip_args=(
+	[ipv4]="--ip_version=ipv4
+		--local_ip=192.168.0.1
+		--gateway_ip=192.168.0.1
+		--netmask_ip=255.255.0.0
+		--remote_ip=192.0.2.1
+		-D TFO_COOKIE=3021b9d889017eeb
+		-D TFO_COOKIE_ZERO=b7c12350a90dc8f5
+		-D CMSG_LEVEL_IP=SOL_IP
+		-D CMSG_TYPE_RECVERR=IP_RECVERR"
+	[ipv6]="--ip_version=ipv6
+		--mtu=1520
+		--local_ip=fd3d:0a0b:17d6::1
+		--gateway_ip=fd3d:0a0b:17d6:8888::1
+		--remote_ip=fd3d:fa7b:d17d::1
+		-D TFO_COOKIE=c1d1e9742a47a9bc
+		-D TFO_COOKIE_ZERO=82af1a8f9a205c34
+		-D CMSG_LEVEL_IP=SOL_IPV6
+		-D CMSG_TYPE_RECVERR=IPV6_RECVERR"
+)
+
+if [ $# -ne 1 ]; then
+	ktap_exit_fail_msg "usage: $0 <script>"
+	exit "$KSFT_FAIL"
+fi
+script="$(basename $1)"
+
+if [ -z "$(which packetdrill)" ]; then
+	ktap_skip_all "packetdrill not found in PATH"
+	exit "$KSFT_SKIP"
+fi
+
+declare -a optargs
+failfunc=ktap_test_fail
+
+if [[ -n "${KSFT_MACHINE_SLOW}" ]]; then
+	optargs+=('--tolerance_usecs=14000')
+	failfunc=ktap_test_xfail
+fi
+
+ip_versions=$(grep -E '^--ip_version=' $script | cut -d '=' -f 2)
+if [[ -z $ip_versions ]]; then
+	ip_versions="ipv4 ipv6"
+elif [[ ! "$ip_versions" =~ ^ipv[46]$ ]]; then
+	ktap_exit_fail_msg "Too many or unsupported --ip_version: $ip_versions"
+	exit "$KSFT_FAIL"
+fi
+
+ktap_print_header
+ktap_set_plan $(echo $ip_versions | wc -w)
+
+for ip_version in $ip_versions; do
+	unshare -n packetdrill ${ip_args[$ip_version]} ${optargs[@]} $script > /dev/null \
+		&& ktap_test_pass $ip_version || $failfunc $ip_version
+done
+
+ktap_finished
diff --git a/tools/testing/selftests/net/packetdrill/set_sysctls.py b/tools/testing/selftests/net/packetdrill/set_sysctls.py
new file mode 100755
index 000000000000..5ddf456ae973
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/set_sysctls.py
@@ -0,0 +1,38 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+"""Sets sysctl values and writes a file that restores them.
+
+The arguments are of the form "<proc-file>=<val>" separated by spaces.
+The program first reads the current value of the proc-file and creates
+a shell script named "/tmp/sysctl_restore_${PACKETDRILL_PID}.sh" which
+restores the values when executed. It then sets the new values.
+
+PACKETDRILL_PID is set by packetdrill to the pid of itself, so a .pkt
+file could restore sysctls by running `/tmp/sysctl_restore_${PPID}.sh`
+at the end.
+"""
+
+import os
+import subprocess
+import sys
+
+filename = '/tmp/sysctl_restore_%s.sh' % os.environ['PACKETDRILL_PID']
+
+# Open file for restoring sysctl values
+restore_file = open(filename, 'w')
+print('#!/bin/bash', file=restore_file)
+
+for a in sys.argv[1:]:
+  sysctl = a.split('=')
+  # sysctl[0] contains the proc-file name, sysctl[1] the new value
+
+  # read current value and add restore command to file
+  cur_val = subprocess.check_output(['cat', sysctl[0]], universal_newlines=True)
+  print('echo "%s" > %s' % (cur_val.strip(), sysctl[0]), file=restore_file)
+
+  # set new value
+  cmd = 'echo "%s" > %s' % (sysctl[1], sysctl[0])
+  os.system(cmd)
+
+os.system('chmod u+x %s' % filename)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-accept.pkt
new file mode 100644
index 000000000000..38535701656e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-accept.pkt
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test for blocking accept.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0...0.200 accept(3, ..., ...) = 4
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+
+  +.1 write(4, ..., 2000) = 2000
+   +0 > P. 1:2001(2000) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-connect.pkt b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-connect.pkt
new file mode 100644
index 000000000000..3692ef102381
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-connect.pkt
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test for blocking connect.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+
+  +.1...0.200 connect(3, ..., ...) = 0
+
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+  +.1 < S. 0:0(0) ack 1 win 5792 <mss 1460,nop,wscale 2,nop,nop,sackOK>
+   +0 > . 1:1(0) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt
new file mode 100644
index 000000000000..657e42ca65b5
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-read.pkt
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test for blocking read.
+
+--tolerance_usecs=10000
+--mss=1000
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+
+   +0...0.100 read(4, ..., 2000) = 2000
+  +.1 < P. 1:2001(2000) ack 1 win 257
+   +0 > . 1:1(0) ack 2001
+
+  +.1...0.200 read(4, ..., 2000) = 2000
+  +.1 < P. 2001:4001(2000) ack 1 win 257
+   +0 > . 1:1(0) ack 4001
+
+  +.1 < P. 4001:6001(2000) ack 1 win 257
+   +0 > . 1:1(0) ack 6001
+   +0...0.000 read(4, ..., 1000) = 1000
+   +0...0.000 read(4, ..., 1000) = 1000
diff --git a/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-write.pkt b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-write.pkt
new file mode 100644
index 000000000000..cec5a0725d95
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_blocking_blocking-write.pkt
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test for blocking write.
+--tolerance_usecs=10000
+
+`./defaults.sh
+./set_sysctls.py /proc/sys/net/ipv4/tcp_min_tso_segs=10
+`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 50000 <mss 1000,nop,wscale 0>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 50000
+   +0 accept(3, ..., ...) = 4
+
+// Kernel doubles our value -> sk->sk_sndbuf is set to 42000
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF,  [21000], 4) = 0
+   +0 getsockopt(4, SOL_SOCKET, SO_SNDBUF,  [42000], [4]) = 0
+
+// A write of 60000 does not block.
+   +0...0.300 write(4, ..., 61000) = 61000    // this write() blocks
+
+  +.1 < . 1:1(0) ack 10001 win 50000
+
+  +.1 < . 1:1(0) ack 30001 win 50000
+
+// This ACK should wakeup the write(). An ACK of 35001 does not.
+  +.1 < . 1:1(0) ack 36001 win 50000
+
+// Reset to sysctls defaults.
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_close_close-local-close-then-remote-fin.pkt b/tools/testing/selftests/net/packetdrill/tcp_close_close-local-close-then-remote-fin.pkt
new file mode 100644
index 000000000000..8514d6bdbb6d
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_close_close-local-close-then-remote-fin.pkt
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test basic connection teardown where local process closes first:
+// the local process calls close() first, so we send a FIN, and receive an ACK.
+// Then we receive a FIN and ACK it.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+ +.01...0.011 connect(3, ..., ...) = 0
+   +0 >  S 0:0(0) <...>
+   +0 < S. 0:0(0) ack 1 win 32768 <mss 1000,nop,wscale 6,nop,nop,sackOK>
+   +0 >  . 1:1(0) ack 1
+
+   +0 write(3, ..., 1000) = 1000
+   +0 >  P. 1:1001(1000) ack 1
+   +0 < . 1:1(0) ack 1001 win 257
+
+   +0 close(3) = 0
+   +0 >  F. 1001:1001(0) ack 1
+   +0 < . 1:1(0) ack 1002 win 257
+
+   +0 < F. 1:1(0) ack 1002 win 257
+   +0 >  . 1002:1002(0) ack 2
diff --git a/tools/testing/selftests/net/packetdrill/tcp_close_close-on-syn-sent.pkt b/tools/testing/selftests/net/packetdrill/tcp_close_close-on-syn-sent.pkt
new file mode 100644
index 000000000000..04103134bd99
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_close_close-on-syn-sent.pkt
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test to make sure no RST is being sent when close()
+// is called on a socket with SYN_SENT state.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+   +0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <...>
+
+// Application decideds to close the socket in SYN_SENT state
+// Make sure no RST is sent after close().
+   +0 close(3) = 0
+
+// Receive syn-ack to trigger the send side packet examination:
+// If a RESET were sent right after close(), it would have failed with
+// a mismatched timestamp.
+  +.1 < S. 0:0(0) ack 1 win 32000 <mss 1460,nop,wscale 7>
+   +0 > R 1:1(0)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_close_close-remote-fin-then-close.pkt b/tools/testing/selftests/net/packetdrill/tcp_close_close-remote-fin-then-close.pkt
new file mode 100644
index 000000000000..5f3a2914213a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_close_close-remote-fin-then-close.pkt
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+// Verify behavior for the sequence: remote side sends FIN, then we close().
+// Since the remote side (client) closes first, we test our LAST_ACK code path.
+
+`./defaults.sh`
+
+// Initialize a server socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+// Client closes first.
+ +.01 < F. 1:1(0) ack 1 win 257
+   +0 > . 1:1(0) ack 2
+
+// App notices that client closed.
+   +0 read(4, ..., 1000) = 0
+
+// Then we close.
+ +.01 close(4) = 0
+   +0 > F. 1:1(0) ack 2
+
+// Client ACKs our FIN.
+ +.01 < . 2:2(0) ack 2 win 257
+
+// Verify that we send RST in response to any incoming segments
+// (because the kernel no longer has any record of this socket).
+ +.01 < . 2:2(0) ack 2 win 257
+   +0 > R 2:2(0)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_close_no_rst.pkt b/tools/testing/selftests/net/packetdrill/tcp_close_no_rst.pkt
new file mode 100644
index 000000000000..eef01d5f1118
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_close_no_rst.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+  +.1 < . 1:1(0) ack 1 win 32792
+
+
+   +0 accept(3, ..., ...) = 4
+   +0 < . 1:1001(1000) ack 1 win 32792
+   +0 > . 1:1(0) ack 1001
+   +0 read(4, ..., 1000) = 1000
+
+// resend the payload + a FIN
+   +0 < F. 1:1001(1000) ack 1 win 32792
+// Why do we have a delay and no dsack ?
+   +0~+.04 > . 1:1(0) ack 1002
+
+   +0 close(4) = 0
+
+// According to RFC 2525, section 2.17
+// we should _not_ send an RST here, because there was no data to consume.
+   +0 > F. 1:1(0) ack 1002
diff --git a/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt b/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt
new file mode 100644
index 000000000000..c790d0af635e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_dsack_mult.pkt
@@ -0,0 +1,45 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test various DSACK (RFC 2883) behaviors.
+
+--mss=1000
+
+`./defaults.sh`
+
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 1024
+   +0 accept(3, ..., ...) = 4
+
+// First SACK range.
+   +0 < P. 1001:2001(1000) ack 1 win 1024
+   +0 > . 1:1(0) ack 1 <nop, nop, sack 1001:2001>
+
+// Check SACK coalescing (contiguous sequence).
+   +0 < P. 2001:3001(1000) ack 1 win 1024
+   +0 > . 1:1(0) ack 1 <nop,nop,sack 1001:3001>
+
+// Check we have two SACK ranges for non contiguous sequences.
+   +0 < P. 4001:5001(1000) ack 1 win 1024
+   +0 > . 1:1(0) ack 1 <nop,nop,sack 4001:5001 1001:3001>
+
+// Three ranges.
+   +0 < P. 7001:8001(1000) ack 1 win 1024
+   +0 > . 1:1(0) ack 1 <nop,nop,sack 7001:8001 4001:5001 1001:3001>
+
+// DSACK (1001:3001) + SACK (6001:7001)
+   +0 < P. 1:6001(6000) ack 1 win 1024
+   +0 > . 1:1(0) ack 6001 <nop,nop,sack 1001:3001 7001:8001>
+
+// DSACK (7001:8001)
+   +0 < P. 6001:8001(2000) ack 1 win 1024
+   +0 > . 1:1(0) ack 8001 <nop,nop,sack 7001:8001>
+
+// DSACK for an older segment.
+   +0 < P. 1:1001(1000) ack 1 win 1024
+   +0 > . 1:1(0) ack 8001 <nop,nop,sack 1:1001>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ecn_ecn-uses-ect0.pkt b/tools/testing/selftests/net/packetdrill/tcp_ecn_ecn-uses-ect0.pkt
new file mode 100644
index 000000000000..643baf3267cf
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ecn_ecn-uses-ect0.pkt
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test ECN: verify that Linux TCP ECN sending code uses ECT0 (not ECT1).
+//
+`./defaults.sh
+sysctl -q net.ipv4.tcp_ecn=1  # fully enabled
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
+
+// ECN handshake: send EW flags in SYN packet, E flag in SYN-ACK response
++.002 ... 0.004 connect(4, ..., ...) = 0
+
+   +0 > SEW 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
++.002 < SE. 0:0(0) ack 1 win 32767 <mss 1000,nop,wscale 6,nop,nop,sackOK>
+   +0 > . 1:1(0) ack 1
+
+// Write 1 MSS.
++.002 write(4, ..., 1000) = 1000
+// Send 1 MSS with ect0.
+   +0 > [ect0] P. 1:1001(1000) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-large.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-large.pkt
new file mode 100644
index 000000000000..f95b9b3c9fa1
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-large.pkt
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP does not append any data from consequent writes to the tail
+// skb created for the chunk. The large chunk itself should be packetized as
+// usual.
+`./defaults.sh
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on
+// the tail.
+   +0 write(4, ..., 10400) = 10400
+
+// Write another 10040B chunk with no coalescing options.
+   +0 send(4, ..., 10400, MSG_EOR) = 10400
+
+// Write a 2KB chunk. This chunk should not be appended to the packets created
+// the previous chunk.
+   +0 write(4, ..., 2000) = 2000
+
+   +0 > P. 1:10001(10000) ack 1
++.001 < .  1:1(0) ack 10001 win 514
+// Now we have enough room to send out the 2 x 400B packets out.
+   +0 > P. 10001:20801(10800) ack 1
++.001 < .  1:1(0) ack 20801 win 514
+// This 2KB packet should be sent alone.
+   +0 > P. 20801:22801(2000) ack 1
++.001 < .  1:1(0) ack 22801 win 514
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-retrans.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-retrans.pkt
new file mode 100644
index 000000000000..2ff66075288e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-retrans.pkt
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP does not append any data from consequent writes to the tail
+// skb created for the chunk. Also, when packets are retransmitted, they
+// will not be coalesce into the same skb.
+`./defaults.sh
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on
+// the tail.
+   +0 write(4, ..., 10400) = 10400
+
+// Write 10 400B chunks with no coalescing options.
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+// This chunk should not be appended to the skbs created for the previous chunk.
+   +0 write(4, ..., 10000) = 10000
+
+   +0 > P. 1:10001(10000) ack 1
++.001 < .  1:1(0) ack 10001 win 514
+// Now we have enough room to send out the 2 x 400B packets out.
+   +0 > P. 10001:10801(800) ack 1
+// The 9 remaining 400B chunks should be sent as individual packets.
+   +0 > P. 10801:11201(400) ack 1
+   +0 > P. 11201:11601(400) ack 1
+   +0 > P. 11601:12001(400) ack 1
+   +0 > P. 12001:12401(400) ack 1
+   +0 > P. 12401:12801(400) ack 1
+   +0 > P. 12801:13201(400) ack 1
+   +0 > P. 13201:13601(400) ack 1
+   +0 > P. 13601:14001(400) ack 1
+   +0 > P. 14001:14401(400) ack 1
+// The last 10KB chunk should be sent separately.
+   +0 > P. 14401:24401(10000) ack 1
+
++.001 < .  1:1(0) ack 10401 win 514
++.001 < .  1:1(0) ack 10801 win 514
++.001 < .  1:1(0) ack 11201 win 514
++.001 < .  1:1(0) ack 11601 win 514
++.001 < .  1:1(0) ack 12001 win 514 <sack 13201:14401,nop,nop>
+// TCP should fill the hole but no coalescing should happen, and all
+// retransmissions should be sent out as individual packets.
+
+// Note : This is timeout based retransmit.
+// Do not put +0 here or flakes will come back.
++.004~+.008 > P. 12001:12401(400) ack 1
+
++.001 < .  1:1(0) ack 12401 win 514 <sack 13201:14401,nop,nop>
+   +0 > P. 12401:12801(400) ack 1
+   +0 > P. 12801:13201(400) ack 1
++.001 < .  1:1(0) ack 12801 win 514 <sack 13201:14401,nop,nop>
++.001 < .  1:1(0) ack 14401 win 514
++.001 < .  1:1(0) ack 24401 win 514
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt
new file mode 100644
index 000000000000..77039c5aac39
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-small.pkt
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP does not append any data from consequent writes to the tail
+// skb created for the chunk.
+`./defaults.sh
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on
+// the tail.
+   +0 write(4, ..., 10400) = 10400
+
+// Write a 400B chunk with no coalescing options.
+   +0 send(4, ..., 400, MSG_EOR) = 400
+
+// This chunk should not be appended to the skbs created for the previous chunk.
+   +0 write(4, ..., 10000) = 10000
+
+   +0 > P. 1:10001(10000) ack 1
++.001 < .  1:1(0) ack 10001 win 514
+// Now we have enough room to send out the 2 x 400B packets out.
+   +0 > P. 10001:10801(800) ack 1
+   +0 > P. 10801:20801(10000) ack 1
++.001 < .  1:1(0) ack 10401 win 514
++.001 < .  1:1(0) ack 10801 win 514
++.001 < .  1:1(0) ack 20801 win 514
diff --git a/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt
new file mode 100644
index 000000000000..dd5a06250595
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_eor_no-coalesce-subsequent.pkt
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP does not append any data from consequent writes to the tail
+// skb created for the chunk even though we have 10 back-to-back small
+// writes.
+`./defaults.sh
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+// Write a 10400B chunk to fill the ICW, and have a 400 byte skb sitting on
+// the tail.
+   +0 write(4, ..., 10400) = 10400
+
+// Write 10 400B chunks with no coalescing options.
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+   +0 send(4, ..., 400, MSG_EOR) = 400
+// This chunk should not be appended to the skbs created for the previous chunk.
+   +0 write(4, ..., 10000) = 10000
+
+   +0 > P. 1:10001(10000) ack 1
++.001 < .  1:1(0) ack 10001 win 514
+// Now we have enough room to send out the 2 x 400B packets out.
+   +0 > P. 10001:10801(800) ack 1
+// The 9 remaining 400B chunks should be sent as individual packets.
+   +0 > P. 10801:11201(400) ack 1
+   +0 > P. 11201:11601(400) ack 1
+   +0 > P. 11601:12001(400) ack 1
+   +0 > P. 12001:12401(400) ack 1
+   +0 > P. 12401:12801(400) ack 1
+   +0 > P. 12801:13201(400) ack 1
+   +0 > P. 13201:13601(400) ack 1
+   +0 > P. 13601:14001(400) ack 1
+   +0 > P. 14001:14401(400) ack 1
+// The last 10KB chunk should be sent separately.
+   +0 > P. 14401:24401(10000) ack 1
+
++.001 < .  1:1(0) ack 10401 win 514
++.001 < .  1:1(0) ack 10801 win 514
++.001 < .  1:1(0) ack 11201 win 514
++.001 < .  1:1(0) ack 11601 win 514
++.001 < .  1:1(0) ack 12001 win 514
++.001 < .  1:1(0) ack 12401 win 514
++.001 < .  1:1(0) ack 12801 win 514
++.001 < .  1:1(0) ack 13201 win 514
++.001 < .  1:1(0) ack 13601 win 514
++.001 < .  1:1(0) ack 14001 win 514
++.001 < .  1:1(0) ack 14401 win 514
++.001 < .  1:1(0) ack 24401 win 514
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-10pkt-lost-1.pkt b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-10pkt-lost-1.pkt
new file mode 100644
index 000000000000..0d3c8077e830
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-10pkt-lost-1.pkt
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test PRR-slowstart implementation.
+// In this variant we test a simple case where in-flight == ssthresh
+// all the way through recovery, so during fast recovery we send one segment
+// for each segment SACKed/ACKed.
+
+// Set up config.
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+// RTT 100ms
+  +.1 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Send 10 data segments.
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+// Lost packet 1:1001.
+ +.11 < . 1:1(0) ack 1 win 320 <sack 1001:2001,nop,nop>
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:3001,nop,nop>
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:4001,nop,nop>
+// Enter fast recovery.
+   +0 > . 1:1001(1000) ack 1
+ +.01 %{
+assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state
+assert tcpi_snd_cwnd == 7, tcpi_snd_cwnd
+assert tcpi_snd_ssthresh == 7, tcpi_snd_ssthresh
+}%
+
+// Write some more, which we will send 1 MSS at a time,
+// as in-flight segments are SACKed or ACKed.
+ +.01 write(4, ..., 7000) = 7000
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:5001,nop,nop>
+   +0 > . 10001:11001(1000) ack 1
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:6001,nop,nop>
+   +0 > . 11001:12001(1000) ack 1
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:7001,nop,nop>
+   +0 > . 12001:13001(1000) ack 1
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:8001,nop,nop>
+   +0 > . 13001:14001(1000) ack 1
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:9001,nop,nop>
+   +0 > . 14001:15001(1000) ack 1
+
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:10001,nop,nop>
+   +0 > . 15001:16001(1000) ack 1
+
+ +.02 < . 1:1(0) ack 10001 win 320
+   +0 > P. 16001:17001(1000) ack 1
+// Leave fast recovery.
+ +.01 %{
+assert tcpi_ca_state == TCP_CA_Open, tcpi_ca_state
+assert tcpi_snd_cwnd == 7, tcpi_snd_cwnd
+assert tcpi_snd_ssthresh == 7, tcpi_snd_ssthresh
+}%
+
+ +.03 < . 1:1(0) ack 12001 win 320
+ +.02 < . 1:1(0) ack 14001 win 320
+ +.02 < . 1:1(0) ack 16001 win 320
+ +.02 < . 1:1(0) ack 17001 win 320
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost-1_4-11_16.pkt b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost-1_4-11_16.pkt
new file mode 100644
index 000000000000..7842a10b6967
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost-1_4-11_16.pkt
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test PRR-slowstart implementation. The sender sends 20 packets. Packet
+// 1 to 4, and 11 to 16 are dropped.
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+
+ +.01 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Write 20 data segments.
+   +0 write(4, ..., 20000) = 20000
+   +0 > P. 1:10001(10000) ack 1
+
+// Receive first DUPACK, entering PRR part
+ +.01 < . 1:1(0) ack 1 win 320 <sack 4001:5001,nop,nop>
+   +0 > . 10001:11001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:6001,nop,nop>
+   +0 > . 11001:12001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:7001,nop,nop>
+   +0 > . 1:1001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:8001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:9001,nop,nop>
+   +0 > . 2001:3001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:10001,nop,nop>
+   +0 > . 3001:4001(1000) ack 1
+// Enter PRR CRB
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:11001,nop,nop>
+   +0 > . 12001:13001(1000) ack 1
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:12001,nop,nop>
+   +0 > . 13001:14001(1000) ack 1
+// Enter PRR slow start
+ +.01 < . 1:1(0) ack 1001 win 320 <sack 4001:12001,nop,nop>
+   +0 > P. 14001:16001(2000) ack 1
++.002 < . 1:1(0) ack 1001 win 320 <sack 2001:12001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
+   +0 > . 16001:17001(1000) ack 1
+// inflight reaches ssthresh, goes into packet conservation mode
++.002 < . 1:1(0) ack 1001 win 320 <sack 2001:13001,nop,nop>
+   +0 > . 17001:18001(1000) ack 1
++.002 < . 1:1(0) ack 1001 win 320 <sack 2001:14001,nop,nop>
+   +0 > . 18001:19001(1000) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost1_4.pkt b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost1_4.pkt
new file mode 100644
index 000000000000..b66d7644c3b6
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-30pkt-lost1_4.pkt
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test PRR-slowstart implementation. The sender sends 20 packets. Packet
+// 1 to 4 are lost. The sender writes another 10 packets.
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+
+ +.01 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Send 20 data segments.
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+// Lost packet 1,2,3,4
+ +.01 < . 1:1(0) ack 1 win 320 <sack 4001:5001,nop,nop>
++.002 < . 1:1(0) ack 1 win 320 <sack 4001:6001,nop,nop>
+   +0 < . 1:1(0) ack 1 win 320 <sack 4001:7001,nop,nop>
+   +0 > . 1:1001(1000) ack 1
+   +0 < . 1:1(0) ack 1 win 320 <sack 4001:8001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
+   +0 < . 1:1(0) ack 1 win 320 <sack 4001:9001,nop,nop>
+   +0 > . 2001:3001(1000) ack 1
+   +0 < . 1:1(0) ack 1 win 320 <sack 4001:10001,nop,nop>
+   +0 > . 3001:4001(1000) ack 1
+
+// Receiver ACKs all data.
+ +.01 < . 1:1(0) ack 1001 win 320 <sack 4001:10001,nop,nop>
+   +0 < . 1:1(0) ack 2001 win 320 <sack 4001:10001,nop,nop>
+   +0 < . 1:1(0) ack 3001 win 320 <sack 4001:10001,nop,nop>
+   +0 < . 1:1(0) ack 10001 win 320
+
+// Writes another 10 packets, which the ssthresh*mss amount
+// should be sent right away
+ +.01 write(4, ..., 10000) = 10000
+   +0 > . 10001:17001(7000) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-ack-below-snd_una-cubic.pkt b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-ack-below-snd_una-cubic.pkt
new file mode 100644
index 000000000000..8e87bfecabb5
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fast_recovery_prr-ss-ack-below-snd_una-cubic.pkt
@@ -0,0 +1,41 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test PRR-slowstart implementation.
+// In this variant we verify that the sender uses SACK info on an ACK
+// below snd_una.
+
+// Set up config.
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 8>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+// RTT 10ms
+ +.01 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Send 10 data segments.
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+// Lost packet 1:1001,4001:5001,7001:8001.
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:2001,nop,nop>
+   +0 < . 1:1(0) ack 1 win 320 <sack 1001:3001,nop,nop>
+   +0 < . 1:1(0) ack 1 win 320 <sack 1001:3001 8001:9001,nop,nop>
+   +0 > . 1:1001(1000) ack 1
+
++.012 < . 1:1(0) ack 4001 win 320 <sack 8001:9001,nop,nop>
+   +0 > . 4001:7001(3000) ack 1
+
+   +0 write(4, ..., 10000) = 10000
+
+// The following ACK was reordered - delayed so that it arrives with
+// an ACK field below snd_una. Here we check that the newly-SACKed
+// 2MSS at 5001:7001 cause us to send out 2 more MSS.
++.002 < . 1:1(0) ack 3001 win 320 <sack 5001:7001,nop,nop>
+   +0 > . 7001:8001(1000) ack 1
+   +0 > . 10001:11001(1000) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt
new file mode 100644
index 000000000000..32aff9bc4052
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-cookie-not-reqd.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Test TFO_SERVER_COOKIE_NOT_REQD flag on receiving
+// SYN with data but without Fast Open cookie option.
+
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x202`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+// Since TFO_SERVER_COOKIE_NOT_REQD, a TFO socket will be created with
+// the data accepted.
+   +0 < S 0:1000(1000) win 32792 <mss 1460,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1001 <mss 1460,nop,nop,sackOK>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 read(4, ..., 1024) = 1000
+
+// Data After SYN will be accepted too.
+   +0 < . 1001:2001(1000) ack 1 win 5840
+   +0 > . 1:1(0) ack 2001
+
+// Should change the implementation later to set the SYN flag as well.
+   +0 read(4, ..., 1024) = 1000
+   +0 write(4, ..., 1000) = 1000
+   +0 > P. 1:1001(1000) ack 2001
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-no-setsockopt.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-no-setsockopt.pkt
new file mode 100644
index 000000000000..649997a58099
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-no-setsockopt.pkt
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Test TFO_SERVER_WO_SOCKOPT1 without setsockopt(TCP_FASTOPEN)
+
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x402`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+
+   +0 read(4, ..., 512) = 10
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt
new file mode 100644
index 000000000000..4a00e0d994f2
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-non-tfo-listener.pkt
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Server w/o TCP_FASTOPEN socket option
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,FO TFO_COOKIE>
+
+// Data is ignored since TCP_FASTOPEN is not set on the listener
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = -1 EAGAIN (Resource temporarily unavailable)
+
+// The above should block until ack comes in below.
+   +0 < . 1:31(30) ack 1 win 5840
+   +0 accept(3, ..., ...) = 4
+
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+   +0 read(4, ..., 512) = 30
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt
new file mode 100644
index 000000000000..345ed26ff7f8
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-pure-syn-data.pkt
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Test that TFO-enabled server would not respond SYN-ACK with any TFO option
+// when receiving a pure SYN-data. It should respond a pure SYN-ack.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
+   +0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 100
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+   +0 close(3) = 0
+
+// Test ECN-setup SYN with ECN disabled because this has happened in reality
+   +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
+   +0 > S. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 100
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+   +0 close(3) = 0
+
+// Test ECN-setup SYN w/ ECN enabled
+   +0 `sysctl -q net.ipv4.tcp_ecn=2`
+   +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < SEW 999000:999040(40) win 32792 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 6>
+   +0 > SE. 1234:1234(0) ack 999001 <mss 1460,sackOK,TS val 100 ecr 100,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 100
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+   +0 close(3) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt
new file mode 100644
index 000000000000..98e6f84497cd
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-rw.pkt
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Test TFO server with SYN that has TFO cookie and data.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+
+   +0 read(4, ..., 512) = 10
+   +0 write(4, ..., 100) = 100
+   +0 > P. 1:101(100) ack 11
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt
new file mode 100644
index 000000000000..95b1047ffdd5
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_basic-zero-payload.pkt
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Basic TFO server test
+//
+// Test zero-payload packet w/ valid TFO cookie - a TFO socket will
+// still be created and accepted but read() will not return until a
+// later pkt with 10 byte.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+
+// A TFO socket is created and is writable.
+   +0 write(4, ..., 100) = 100
+   +0 > P. 1:101(100) ack 1
+   +0...0.300 read(4, ..., 512) = 10
+  +.3 < P. 1:11(10) ack 1 win 5840
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_client-ack-dropped-then-recovery-ms-timestamps.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_client-ack-dropped-then-recovery-ms-timestamps.pkt
new file mode 100644
index 000000000000..f75efd51ed0c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_client-ack-dropped-then-recovery-ms-timestamps.pkt
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// A reproducer case for a TFO SYNACK RTO undo bug in:
+//   794200d66273 ("tcp: undo cwnd on Fast Open spurious SYNACK retransmit")
+// This sequence that tickles this bug is:
+//  - Fast Open server receives TFO SYN with data, sends SYNACK
+//  - (client receives SYNACK and sends ACK, but ACK is lost)
+//  - server app sends some data packets
+//  - (N of the first data packets are lost)
+//  - server receives client ACK that has a TS ECR matching first SYNACK,
+//    and also SACKs suggesting the first N data packets were lost
+//     - server performs undo of SYNACK RTO, then immediately enters recovery
+//     - buggy behavior in 794200d66273 then performed an undo that caused
+//       the connection to be in a bad state, in CA_Open with retrans_out != 0
+
+// Check that outbound TS Val ticks are as we would expect with 1000 usec per
+// timestamp tick:
+--tcp_ts_tick_usecs=1000
+
+`./defaults.sh`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:1000(1000) win 65535 <mss 1012,sackOK,TS val 1000 ecr 0,wscale 7,nop,nop,nop,FO TFO_COOKIE>
+   +0 > S. 0:0(0) ack 1001 <mss 1460,sackOK,TS val 2000 ecr 1000,nop,wscale 8>
+   +0 accept(3, ..., ...) = 4
+
+// Application writes more data
+   +.010 write(4, ..., 10000) = 10000
+   +0 > P. 1:5001(5000) ack 1001 <nop,nop,TS val 2010 ecr 1000>
+   +0 > P. 5001:10001(5000) ack 1001 <nop,nop,TS val 2010 ecr 1000>
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+   +0 < . 1001:1001(0) ack 1 win 257 <TS val 1010 ecr 2000,sack 2001:5001>
+   +0 > P. 1:2001(2000) ack 1001 <nop,nop,TS val 2010 ecr 1010>
+   +0 %{ assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state }%
+   +0 %{ assert tcpi_snd_cwnd == 7, tcpi_snd_cwnd }%
+
+   +0 < . 1001:1001(0) ack 1 win 257 <TS val 1011 ecr 2000,sack 2001:6001>
+   +0 %{ assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state }%
+   +0 %{ assert tcpi_snd_cwnd == 7, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_experimental_option.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_experimental_option.pkt
new file mode 100644
index 000000000000..c3cb0e8bdcf8
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_experimental_option.pkt
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Test the Experimental Option
+//
+// SYN w/ FOEXP w/o cookie must generates SYN+ACK w/ FOEXP
+// w/ a valid cookie, and the cookie must be the same one
+// with one generated by IANA FO
+
+`./defaults.sh`
+
+// Request a TFO cookie by Experimental Option
+// This must generate the same TFO_COOKIE
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FOEXP>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,FOEXP TFO_COOKIE>
+
+   +0 close(3) = 0
+
+// Test if FOEXP with a valid cookie creates a TFO socket
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FOEXP TFO_COOKIE>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+
+   +0 read(4, ..., 512) = 10
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt
new file mode 100644
index 000000000000..dc09f8d9a381
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_fin-close-socket.pkt
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send a FIN pkt with the ACK bit to a TFO socket.
+// The socket will go to TCP_CLOSE_WAIT state and data can be
+// read until the socket is closed, at which time a FIN will be sent.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+// FIN is acked and the socket goes to TCP_CLOSE_WAIT state
+// in tcp_fin() called from tcp_data_queue().
+   +0 < F. 11:11(0) ack 1 win 32792
+   +0 > . 1:1(0) ack 12
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_CLOSE_WAIT, tcpi_state }%
+
+   +0 read(4, ..., 512) = 10
+   +0 close(4) = 0
+   +0 > F. 1:1(0) ack 12
+    * > F. 1:1(0) ack 12
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_icmp-before-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_icmp-before-accept.pkt
new file mode 100644
index 000000000000..d5543672e2bd
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_icmp-before-accept.pkt
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send an ICMP host_unreachable pkt to a pending SYN_RECV req.
+//
+// If it's a TFO req, the ICMP error will cause it to switch
+// to TCP_CLOSE state but remains in the acceptor queue.
+
+--ip_version=ipv4
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+// Out-of-window icmp is ignored but accounted.
+   +0 `nstat > /dev/null`
+   +0 < icmp unreachable [5000:6000(1000)]
+   +0 `nstat | grep TcpExtOutOfWindowIcmps > /dev/null`
+
+// Valid ICMP unreach.
+   +0 < icmp unreachable host_unreachable [0:10(10)]
+
+// Unlike the non-TFO case, the req is still there to be accepted.
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+
+// tcp_done_with_error() in tcp_v4_err() sets sk->sk_state
+// to TCP_CLOSE
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+// The 1st read will succeed and return the data in SYN
+   +0 read(4, ..., 512) = 10
+
+// The 2nd read will fail.
+   +0 read(4, ..., 512) = -1 EHOSTUNREACH (No route to host)
+
+// But is no longer writable because it's in TCP_CLOSE state.
+   +0 write(4, ..., 100) = -1 EPIPE (Broken Pipe)
+
+// inbound pkt will trigger RST because the socket has been moved
+// off the TCP hash tables.
+   +0 < . 1:1(0) ack 1 win 32792
+   +0 > R 1:1(0)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-after-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-after-accept.pkt
new file mode 100644
index 000000000000..040d5547ed80
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-after-accept.pkt
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send a RST to a TFO socket after it has been accepted.
+//
+// First read() will return all the data and this is consistent
+// with the non-TFO case. Second read will return -1
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
+
+// 1st read will return the data from SYN.
+// tcp_reset() sets sk->sk_err to ECONNRESET for SYN_RECV.
+   +0 < R. 11:11(0) win 32792
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+// This one w/o ACK bit will cause the same effect.
+// +0 < R 11:11(0) win 32792
+// See Step 2 in tcp_validate_incoming().
+
+// found_ok_skb in tcp_recvmsg_locked()
+   +0 read(4, ..., 512) = 10
+
+// !copied && sk->sk_err -> sock_error(sk)
+   +0 read(4, ..., 512) = -1 ECONNRESET (Connection reset by peer)
+   +0 close(4) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-before-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-before-accept.pkt
new file mode 100644
index 000000000000..7f9de6c66cbd
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-before-accept.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send a RST to a TFO socket before it is accepted.
+//
+// The socket won't go away and after it's accepted the data
+// in the SYN pkt can still be read. But that's about all that
+// the acceptor can do with the socket.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+
+// 1st read will return the data from SYN.
+   +0 < R. 11:11(0) win 257
+
+// This one w/o ACK bit will cause the same effect.
+// +0 < R 11:11(0) win 257
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+   +0 read(4, ..., 512) = 10
+   +0 read(4, ..., 512) = -1 ECONNRESET (Connection reset by peer)
+   +0 close(4) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-close-with-unread-data.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-close-with-unread-data.pkt
new file mode 100644
index 000000000000..548a87701b5d
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-close-with-unread-data.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send a RST to a TFO socket after it is accepted.
+//
+// The socket will change to TCP_CLOSE state with pending data so
+// write() will fail. Pending data can be still be read and close()
+// won't trigger RST if data is not read
+//
+// 565b7b2d2e63 ("tcp: do not send reset to already closed sockets")
+// https://lore.kernel.org/netdev/4C1A2502.1030502@openvz.org/
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop, FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
+
+// tcp_done() sets sk->sk_state to TCP_CLOSE and clears tp->fastopen_rsk
+   +0 < R. 11:11(0) win 32792
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+   +0 write(4, ..., 100) = -1 ECONNRESET(Connection reset by peer)
+   +0 close(4) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-non-tfo-socket.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-non-tfo-socket.pkt
new file mode 100644
index 000000000000..20090bf77655
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_reset-non-tfo-socket.pkt
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Send a RST to a fully established socket with pending data before
+// it is accepted.
+//
+// The socket with pending data won't go away and can still be accepted
+// with data read. But it will be in TCP_CLOSE state.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+// Invalid cookie, so accept() fails.
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO aaaaaaaaaaaaaaaa,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK, FO TFO_COOKIE,nop,nop>
+
+   +0 accept(3, ..., ...) = -1 EAGAIN (Resource temporarily unavailable)
+
+// Complete 3WHS and send data and RST
+   +0 < . 1:1(0) ack 1 win 32792
+   +0 < . 1:11(10) ack 1 win 32792
+   +0 < R. 11:11(0) win 32792
+
+// A valid reset won't make the fully-established socket go away.
+// It's just that the acceptor will get a dead, unusable socket
+// in TCP_CLOSE state.
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+   +0 write(4, ..., 100) = -1 ECONNRESET(Connection reset by peer)
+   +0 read(4, ..., 512) = 10
+   +0 read(4, ..., 512) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_sockopt-fastopen-key.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_sockopt-fastopen-key.pkt
new file mode 100644
index 000000000000..9f52d7de3436
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_sockopt-fastopen-key.pkt
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Test the server cookie is generated by aes64 encoding of remote and local
+// IP addresses with a master key specified via sockopt TCP_FASTOPEN_KEY
+//
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen_key=00000000-00000000-00000000-00000000`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+
+// Set a key of a1a1a1a1-b2b2b2b2-c3c3c3c3-d4d4d4d4 (big endian).
+// This would produce a cookie of TFO_COOKIE like many other
+// tests (which the same key but set via sysctl).
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN_KEY,
+                 "\xa1\xa1\xa1\xa1\xb2\xb2\xb2\xb2\xc3\xc3\xc3\xc3\xd4\xd4\xd4\xd4", 16) = 0
+
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+// Request a valid cookie TFO_COOKIE
+   +0 < S 1428932:1428942(10) win 10000 <mss 1012,nop,nop,FO,sackOK,TS val 1 ecr 0,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1428933 <mss 1460,sackOK,TS val 10000 ecr 1,nop,wscale 8,FO TFO_COOKIE,nop,nop>
+   +0 < . 1:1(0) ack 1 win 257 <nop,nop,TS val 2 ecr 10000>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+
+   +0 close(4) = 0
+   +0 > F. 1:1(0) ack 1 <nop,nop,TS val 10001 ecr 2>
+   +0 < F. 1:1(0) ack 2 win 257 <nop,nop,TS val 3 ecr 10001>
+   +0 > . 2:2(0) ack 2 <nop,nop,TS val 10002 ecr 3>
+
+   +0 close(3) = 0
+
+// Restart the listener
+   +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+// Test setting the key in the listen state, and produces an identical cookie
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN_KEY,
+                 "\xa1\xa1\xa1\xa1\xb2\xb2\xb2\xb2\xc3\xc3\xc3\xc3\xd4\xd4\xd4\xd4", 16) = 0
+
+   +0 < S 6814000:6815000(1000) win 10000 <mss 1012,nop,nop,FO TFO_COOKIE,sackOK,TS val 10 ecr 0,nop,wscale 7>
+   +0 > S. 0:0(0) ack 6815001 <mss 1460,sackOK,TS val 10000 ecr 10,nop,wscale 8>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 < . 1001:1001(0) ack 1 win 257 <nop,nop,TS val 12 ecr 10000>
+   +0 read(4, ..., 8192) = 1000
+
+   +0 close(4) = 0
+   +0 > F. 1:1(0) ack 1001 <nop,nop,TS val 10101 ecr 12>
+   +0 < F. 1001:1001(0) ack 2 win 257 <nop,nop,TS val 112 ecr 10101>
+   +0 > . 2:2(0) ack 1002 <nop,nop,TS val 10102 ecr 112>
+
+   +0 close(3) = 0
+
+// Restart the listener
+   +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+// Test invalid key length (must be 16 bytes)
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN_KEY, "", 0) = -1 (Invalid Argument)
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN_KEY, "", 3) = -1 (Invalid Argument)
+
+// Previous cookie won't be accepted b/c this listener uses the global key (0-0-0-0)
+   +0 < S 6814000:6815000(1000) win 10000 <mss 1012,nop,nop,FO TFO_COOKIE,sackOK,TS val 10 ecr 0,nop,wscale 7>
+   +0 > S. 0:0(0) ack 6814001 <mss 1460,sackOK,TS val 10000 ecr 10,nop,wscale 8,FO TFO_COOKIE_ZERO,nop,nop>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-listener-closed.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-listener-closed.pkt
new file mode 100644
index 000000000000..e82e06da44c9
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-listener-closed.pkt
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Close a listener socket with pending TFO child.
+// This will trigger RST pkt to go out.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+// RST pkt is generated for each not-yet-accepted TFO child.
+// inet_csk_listen_stop() -> inet_child_forget() -> tcp_disconnect()
+// -> tcp_need_reset() is true for SYN_RECV
+   +0 close(3) = 0
+   +0 > R. 1:1(0) ack 11
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-reconnect.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-reconnect.pkt
new file mode 100644
index 000000000000..2a148bb14cbf
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-reconnect.pkt
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: GPL-2.0
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,nop,nop,sackOK,nop,nop,FO TFO_COOKIE>
+   +0 > S. 0:0(0) ack 11 win 65535 <mss 1460,nop,nop,sackOK>
+
+// sk->sk_state is TCP_SYN_RECV
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
+
+// tcp_disconnect() sets sk->sk_state to TCP_CLOSE
+   +0 connect(4, AF_UNSPEC, ...) = 0
+   +0 > R. 1:1(0) ack 11 win 65535
+   +0 %{ assert tcpi_state == TCP_CLOSE, tcpi_state }%
+
+// connect() sets sk->sk_state to TCP_SYN_SENT
+   +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 connect(4, ..., ...) = -1 EINPROGRESS (Operation is now in progress)
+   +0 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 %{ assert tcpi_state == TCP_SYN_SENT, tcpi_state }%
+
+// tp->fastopen_rsk must be NULL
+   +1 > S 0:0(0) win 65535 <mss 1460,nop,nop,sackOK,nop,wscale 8>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-unread-data-closed.pkt b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-unread-data-closed.pkt
new file mode 100644
index 000000000000..09fb63f78a0e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_fastopen_server_trigger-rst-unread-data-closed.pkt
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Close a TFO socket with unread data.
+// This will trigger a RST pkt.
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 32792 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+   +0 %{ assert tcpi_state == TCP_SYN_RECV, tcpi_state }%
+
+// data_was_unread == true in __tcp_close()
+   +0 close(4) = 0
+   +0 > R. 1:1(0) ack 11
diff --git a/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt b/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt
new file mode 100644
index 000000000000..e13f0eee9795
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_inq_client.pkt
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP_INQ and TCP_CM_INQ on the client side.
+
+--mss=1000
+
+`./defaults.sh
+`
+
+// Create a socket and set it to non-blocking.
+    0	socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0	fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
+   +0	fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+// Connect to the server and enable TCP_INQ.
+   +0	connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0	setsockopt(3, SOL_TCP, TCP_INQ, [1], 4) = 0
+
+   +0	> S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+ +.01	< S. 0:0(0) ack 1 win 5792 <mss 1460,sackOK,TS val 700 ecr 100,nop,wscale 7>
+   +0	> . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 700>
+
+// Now we have 10K of data ready on the socket.
+   +0	< . 1:10001(10000) ack 1 win 514
+   +0	> . 1:1(0) ack 10001 <nop,nop,TS val 200 ecr 700>
+
+// We read 1K and we should have 9K ready to read.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 1000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=9000}]}, 0) = 1000
+// We read 9K and we should have no further data ready to read.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 9000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=0}]}, 0) = 9000
+
+// Server sends more data and closes the connections.
+   +0	< F. 10001:20001(10000) ack 1 win 514
+   +0	> . 1:1(0) ack 20002 <nop,nop,TS val 200 ecr 700>
+
+// We read 10K and we should have one "fake" byte because the connection is
+// closed.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 10000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=1}]}, 0) = 10000
+// Now, receive EOF.
+   +0	read(3, ..., 2000) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt
new file mode 100644
index 000000000000..14dd5f813d50
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_inq_server.pkt
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP_INQ and TCP_CM_INQ on the server side.
+
+--mss=1000
+
+`./defaults.sh
+`
+
+// Initialize connection
+    0	socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0	setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0	bind(3, ..., ...) = 0
+   +0	listen(3, 1) = 0
+
+   +0	< S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0	> S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01	< . 1:1(0) ack 1 win 514
+
+// Accept the connection and enable TCP_INQ.
+   +0	accept(3, ..., ...) = 4
+   +0	setsockopt(4, SOL_TCP, TCP_INQ, [1], 4) = 0
+
+// Now we have 10K of data ready on the socket.
+   +0	< . 1:10001(10000) ack 1 win 514
+   +0	> . 1:1(0) ack 10001
+
+// We read 2K and we should have 8K ready to read.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 2000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=8000}]}, 0) = 2000
+// We read 8K and we should have no further data ready to read.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 8000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=0}]}, 0) = 8000
+// Client sends more data and closes the connections.
+   +0	< F. 10001:20001(10000) ack 1 win 514
+   +0	> . 1:1(0) ack 20002
+
+// We read 10K and we should have one "fake" byte because the connection is
+// closed.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{..., 10000}],
+		    msg_flags=0,
+		    msg_control=[{cmsg_level=SOL_TCP,
+				  cmsg_type=TCP_CM_INQ,
+				  cmsg_data=1}]}, 0) = 10000
+// Now, receive error.
+   +0	read(3, ..., 2000) = -1 ENOTCONN (Transport endpoint is not connected)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-no-sack.pkt b/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-no-sack.pkt
new file mode 100644
index 000000000000..96b01eb5b7a4
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-no-sack.pkt
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test RFC 3042 "Limited Transmit": "sending a new data segment in
+// response to each of the first two duplicate acknowledgments that
+// arrive at the sender".
+// This variation tests a receiver that doesn't support SACK.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Write some data, and send the initial congestion window.
+   +0 write(4, ..., 15000) = 15000
+   +0 > P. 1:10001(10000) ack 1
+
+// Limited transmit: on first dupack, send a new data segment.
+ +.11 < . 1:1(0) ack 1 win 320
+   +0 > . 10001:11001(1000) ack 1
+
+// Limited transmit: on second dupack, send a new data segment.
+ +.01 < . 1:1(0) ack 1 win 320
+   +0 > . 11001:12001(1000) ack 1
+
+// It turned out to be reordering, not loss.
+// We have one packet newly acked (1001:3001 were DUP-ACK'd)
+// So we revert state back to Open. Slow start cwnd from 10 to 11
+// and send 11 - 9 = 2 packets
+ +.01 < . 1:1(0) ack 3001 win 320
+   +0 > P. 12001:14001(2000) ack 1
+
+ +.02 < . 1:1(0) ack 5001 win 320
+   +0 > P. 14001:15001(1000) ack 1
+
+// Client gradually ACKs all data.
+ +.02 < . 1:1(0) ack 7001 win 320
+ +.02 < . 1:1(0) ack 9001 win 320
+ +.02 < . 1:1(0) ack 11001 win 320
+ +.02 < . 1:1(0) ack 13001 win 320
+ +.02 < . 1:1(0) ack 15001 win 320
+
+// Clean up.
+ +.17 close(4) = 0
+   +0 > F. 15001:15001(0) ack 1
+  +.1 < F. 1:1(0) ack 15002 win 257
+   +0 > . 15002:15002(0) ack 2
diff --git a/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-sack.pkt b/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-sack.pkt
new file mode 100644
index 000000000000..642da51ec3a4
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_limited_transmit_limited-transmit-sack.pkt
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test RFC 3042 "Limited Transmit": "sending a new data segment in
+// response to each of the first two duplicate acknowledgments that
+// arrive at the sender".
+// This variation tests a receiver that supports SACK.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 320
+   +0 accept(3, ..., ...) = 4
+
+// Write some data, and send the initial congestion window.
+   +0 write(4, ..., 15000) = 15000
+   +0 > P. 1:10001(10000) ack 1
+
+// Limited transmit: on first dupack, send a new data segment.
+ +.11 < . 1:1(0) ack 1 win 320 <sack 1001:2001,nop,nop>
+   +0 > . 10001:11001(1000) ack 1
+
+// Limited transmit: on second dupack, send a new data segment.
+ +.01 < . 1:1(0) ack 1 win 320 <sack 1001:3001,nop,nop>
+   +0 > . 11001:12001(1000) ack 1
+
+// It turned out to be reordering, not loss.
+ +.01 < . 1:1(0) ack 3001 win 320
+   +0 > P. 12001:14001(2000) ack 1
+
+ +.02 < . 1:1(0) ack 5001 win 320
+   +0 > P. 14001:15001(1000) ack 1
+
+// Client gradually ACKs all data.
+ +.02 < . 1:1(0) ack 7001 win 320
+ +.02 < . 1:1(0) ack 9001 win 320
+ +.02 < . 1:1(0) ack 11001 win 320
+ +.02 < . 1:1(0) ack 13001 win 320
+ +.02 < . 1:1(0) ack 15001 win 320
+
+// Clean up.
+ +.17 close(4) = 0
+   +0 > F. 15001:15001(0) ack 1
+  +.1 < F. 1:1(0) ack 15002 win 257
+   +0 > . 15002:15002(0) ack 2
diff --git a/tools/testing/selftests/net/packetdrill/tcp_md5_md5-only-on-client-ack.pkt b/tools/testing/selftests/net/packetdrill/tcp_md5_md5-only-on-client-ack.pkt
new file mode 100644
index 000000000000..25dfef95d3f8
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_md5_md5-only-on-client-ack.pkt
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test what happens when client does not provide MD5 on SYN,
+// but then does on the ACK that completes the three-way handshake.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+// Ooh, weird: client provides MD5 option on the ACK:
+ +.01 < . 1:1(0) ack 1 win 514 <md5 000102030405060708090a0b0c0d0e0f,nop,nop>
+ +.01 < . 1:1(0) ack 1 win 514 <md5 000102030405060708090a0b0c0d0e0f,nop,nop>
+
+// The TCP listener refcount should be 2, but on buggy kernels it can be 0:
+   +0 `grep " 0A " /proc/net/tcp /proc/net/tcp6 | grep ":1F90"`
+
+// Now here comes the legit ACK:
+ +.01 < . 1:1(0) ack 1 win 514
+
+// Make sure the connection is OK:
+   +0 accept(3, ..., ...) = 4
+
+ +.01 write(4, ..., 1000) = 1000
diff --git a/tools/testing/selftests/net/packetdrill/tcp_nagle_https_client.pkt b/tools/testing/selftests/net/packetdrill/tcp_nagle_https_client.pkt
new file mode 100644
index 000000000000..7adae7a9ef4a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_nagle_https_client.pkt
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+// This is a test inspired by an Android client app using SSL. This
+// test verifies using TCP_NODELAY would save application latency
+// (Perhaps even better with TCP_NAGLE).
+//
+`./defaults.sh
+ethtool -K tun0 tso off gso off
+./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
+   +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
+
+   +0 connect(4, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < S. 0:0(0) ack 1 win 5792 <mss 974,nop,nop,sackOK,nop,wscale 7>
+   +0 > . 1:1(0) ack 1
+
+// SSL handshake (resumed session)
+   +0 write(4, ..., 517) = 517
+   +0 > P. 1:518(517) ack 1
+  +.1 < . 1:1(0) ack 518 win 229
+
+   +0 < P. 1:144(143) ack 1 win 229
+   +0 > . 518:518(0) ack 144
+   +0 read(4, ..., 1000) = 143
+
+// Application POST header (51B) and body (2002B)
+   +0 write(4, ..., 51) = 51
+   +0 > P. 518:569(51) ack 144
+ +.03 write(4, ..., 2002) = 2002
+   +0 > . 569:1543(974) ack 144
+   +0 > P. 1543:2517(974) ack 144
+// Without disabling Nagle, this packet will not happen until the remote ACK.
+   +0 > P. 2517:2571(54) ack 144
+
+  +.1 < . 1:1(0) ack 2571 win 229
+
+// Reset sysctls
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_nagle_sendmsg_msg_more.pkt b/tools/testing/selftests/net/packetdrill/tcp_nagle_sendmsg_msg_more.pkt
new file mode 100644
index 000000000000..fa9c01813996
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_nagle_sendmsg_msg_more.pkt
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test the MSG_MORE flag will correctly corks the tiny writes
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+// Disable Nagle by default on this socket.
+   +0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
+
+// Test the basic case: MSG_MORE overwrites TCP_NODELAY and enables Nagle.
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 40}], msg_flags=0}, MSG_MORE) = 40
+ +.21~+.215 > P. 1:41(40) ack 1
+ +.01 < . 1:1(0) ack 41 win 257
+
+// Test unsetting MSG_MORE releases the packet
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 100}], msg_flags=0}, MSG_MORE) = 100
++.005 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 160}], msg_flags=0}, MSG_MORE) = 160
+ +.01 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(3)=[{..., 100}, {..., 200}, {..., 195}],
+		  msg_flags=0}, MSG_MORE) = 495
++.008 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 5}], msg_flags=0}, 0) = 5
+   +0 > P. 41:801(760) ack 1
+ +.02 < . 1:1(0) ack 801 win 257
+
+
+// Test >MSS write will unleash MSS packets but hold on the remaining data.
+  +.1 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 3100}], msg_flags=0}, MSG_MORE) = 3100
+   +0 > . 801:3801(3000) ack 1
++.003 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 50}], msg_flags=0}, MSG_MORE) = 50
+
+ +.01 < . 1:1(0) ack 2801 win 257
+// Err... we relase the remaining right after the ACK? note that PUSH is reset
+   +0 > . 3801:3951(150) ack 1
+
+// Test we'll hold on the subsequent writes when inflight (3801:3951) > 0
++.001 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 1}], msg_flags=0}, MSG_MORE) = 1
++.002 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 2}], msg_flags=0}, MSG_MORE) = 2
++.003 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 3}], msg_flags=0}, MSG_MORE) = 3
++.004 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 4}], msg_flags=0}, MSG_MORE) = 4
+ +.02 < . 1:1(0) ack 3951 win 257
+   +0 > . 3951:3961(10) ack 1
+ +.02 < . 1:1(0) ack 3961 win 257
+
+
+// Test the case a MSG_MORE send followed by a write flushes the data
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{..., 20}], msg_flags=0}, MSG_MORE) = 20
+ +.05 write(4, ..., 20) = 20
+   +0 > P. 3961:4001(40) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_nagle_sockopt_cork_nodelay.pkt b/tools/testing/selftests/net/packetdrill/tcp_nagle_sockopt_cork_nodelay.pkt
new file mode 100644
index 000000000000..0ddec5f7dc1a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_nagle_sockopt_cork_nodelay.pkt
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP_CORK and TCP_NODELAY sockopt behavior
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+// Set TCP_CORK sockopt to hold small packets
+   +0 setsockopt(4, SOL_TCP, TCP_CORK, [1], 4) = 0
+
+   +0 write(4, ..., 40) = 40
+ +.05 write(4, ..., 40) = 40
+
+// Unset TCP_CORK should push pending bytes out
+ +.01 setsockopt(4, SOL_TCP, TCP_CORK, [0], 4) = 0
+   +0 > P. 1:81(80) ack 1
+ +.01 < . 1:1(0) ack 81 win 257
+
+// Set TCP_CORK sockopt to hold small packets
+   +0 setsockopt(4, SOL_TCP, TCP_CORK, [1], 4) = 0
+
+   +0 write(4, ..., 40) = 40
+ +.05 write(4, ..., 40) = 40
+
+// Set TCP_NODELAY sockopt should push pending bytes out
+   +0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
+   +0 > P. 81:161(80) ack 1
+ +.01 < . 1:1(0) ack 161 win 257
+
+// Set MSG_MORE to hold small packets
+   +0 send(4, ..., 40, MSG_MORE) = 40
+ +.05 send(4, ..., 40, MSG_MORE) = 40
+
+// Set TCP_NODELAY sockopt should push pending bytes out
+ +.01 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
+   +0 > . 161:241(80) ack 1
+ +.01 < . 1:1(0) ack 241 win 257
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt b/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt
new file mode 100644
index 000000000000..09aabc775e80
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ooo-before-and-after-accept.pkt
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh
+sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"`
+
+// Test that a not-yet-accepted socket does not change
+// its initial sk_rcvbuf (tcp_rmem[1]) when receiving ooo packets.
+
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
+  +.1 < . 1:1(0) ack 1 win 257
+  +0  < . 2001:41001(39000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:41001>
+  +0  < . 41001:101001(60000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:101001>
+  +0  < . 1:1001(1000) ack 1 win 257
+  +0  > . 1:1(0) ack 1001 <nop,nop,sack 2001:101001>
+  +0  < . 1001:2001(1000) ack 1 win 257
+  +0  > . 1:1(0) ack 101001
+
+  +0 accept(3, ..., ...) = 4
+
+  +0 %{ assert SK_MEMINFO_RCVBUF == 131072, SK_MEMINFO_RCVBUF }%
+
+  +0 close(4) = 0
+  +0 close(3) = 0
+
+// Test that ooo packets for accepted sockets do increase sk_rcvbuf
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
+  +.1 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+  +0  < . 2001:41001(39000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:41001>
+  +0  < . 41001:101001(60000) ack 1 win 257
+  +0  > . 1:1(0) ack 1 <nop,nop,sack 2001:101001>
+
+  +0 %{ assert SK_MEMINFO_RCVBUF > 131072, SK_MEMINFO_RCVBUF }%
+
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt b/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt
new file mode 100644
index 000000000000..7e6bc5fb0c8d
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ooo_rcv_mss.pkt
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh
+sysctl -q net.ipv4.tcp_rmem="4096 131072 $((32*1024*1024))"`
+
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,nop,nop,sackOK,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 10>
+  +.1 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 < . 2001:11001(9000) ack 1 win 257
+   +0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:11001>
+
+// check that ooo packet properly updates tcpi_rcv_mss
+   +0 %{ assert tcpi_rcv_mss == 1000, tcpi_rcv_mss }%
+
+   +0 < . 11001:21001(10000) ack 1 win 257
+   +0 > . 1:1(0) ack 1 win 81 <nop,nop,sack 2001:21001>
+
diff --git a/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt b/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt
new file mode 100644
index 000000000000..3848b419e68c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_rcv_big_endseq.pkt
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh`
+
+    0 `nstat -n`
+
+// Establish a connection.
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [10000], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 0>
+  +.1 < . 1:1(0) ack 1 win 257
+
+  +0 accept(3, ..., ...) = 4
+
+  +0 < P. 1:4001(4000) ack 1 win 257
+  +0 > .  1:1(0) ack 4001 win 5000
+
+// packet in sequence : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
+  +0 < P. 4001:54001(50000) ack 1 win 257
+  +0 > .  1:1(0) ack 4001 win 5000
+
+// ooo packet. : SKB_DROP_REASON_TCP_INVALID_END_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
+  +1 < P. 5001:55001(50000) ack 1 win 257
+  +0 > .  1:1(0) ack 4001 win 5000
+
+// SKB_DROP_REASON_TCP_INVALID_SEQUENCE / LINUX_MIB_BEYOND_WINDOW
+  +0 < P. 70001:80001(10000) ack 1 win 257
+  +0 > .  1:1(0) ack 4001 win 5000
+
+  +0 read(4, ..., 100000) = 4000
+
+// If queue is empty, accept a packet even if its end_seq is above wup + rcv_wnd
+  +0 < P. 4001:54001(50000) ack 1 win 257
+  +0 > .  1:1(0) ack 54001 win 0
+
+// Check LINUX_MIB_BEYOND_WINDOW has been incremented 3 times.
++0 `nstat | grep TcpExtBeyondWindow | grep -q " 3 "`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt b/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt
new file mode 100644
index 000000000000..f575c0ff89da
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_rcv_toobig.pkt
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+
+--mss=1000
+
+`./defaults.sh`
+
+    0 `nstat -n`
+
+// Establish a connection.
+   +0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_RCVBUF, [20000], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 win 18980 <mss 1460,nop,wscale 0>
+  +.1 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 < P. 1:20001(20000) ack 1 win 257
+ +.04 > .  1:1(0) ack 20001 win 18000
+
+   +0 setsockopt(4, SOL_SOCKET, SO_RCVBUF, [12000], 4) = 0
+   +0 < P. 20001:80001(60000) ack 1 win 257
+   +0 > .  1:1(0) ack 20001 win 18000
+
+   +0 read(4, ..., 20000) = 20000
+// A too big packet is accepted if the receive queue is empty
+   +0 < P. 20001:80001(60000) ack 1 win 257
+   +0 > .  1:1(0) ack 80001 win 0
+
diff --git a/tools/testing/selftests/net/packetdrill/tcp_rto_synack_rto_max.pkt b/tools/testing/selftests/net/packetdrill/tcp_rto_synack_rto_max.pkt
new file mode 100644
index 000000000000..47550df124ce
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_rto_synack_rto_max.pkt
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Test SYN+ACK RTX with 1s RTO.
+//
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_rto_max_ms=1000`
+
+//
+// Test 1: TFO SYN+ACK
+//
+    0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [1], 4) = 0
+
+   +0 < S 0:10(10) win 1000 <mss 1460,sackOK,nop,nop,FO TFO_COOKIE,nop,nop>
+   +0 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+// RTO must be capped to 1s
+   +1 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+   +1 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+   +1 > S. 0:0(0) ack 11 <mss 1460,nop,nop,sackOK>
+
+   +0 < . 11:11(0) ack 1 win 1000 <mss 1460,nop,nop,sackOK>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) != 0, tcpi_options }%
+
+   +0 close(4) = 0
+   +0 close(3) = 0
+
+
+//
+// Test 2: non-TFO SYN+ACK
+//
+   +0 socket(..., SOCK_STREAM|SOCK_NONBLOCK, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 1000 <mss 1460,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+
+// RTO must be capped to 1s
+   +1 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+   +1 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+   +1 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+
+   +0 < . 1:1(0) ack 1 win 1000 <mss 1460,nop,nop,sackOK>
+   +0 accept(3, ..., ...) = 4
+   +0 %{ assert (tcpi_options & TCPI_OPT_SYN_DATA) == 0, tcpi_options }%
+
+   +0 close(4) = 0
+   +0 close(3) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_sack_sack-route-refresh-ip-tos.pkt b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-route-refresh-ip-tos.pkt
new file mode 100644
index 000000000000..310ef31518da
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-route-refresh-ip-tos.pkt
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+// Verify that setsockopt calls that force a route refresh do not
+// cause problems matching SACKs with packets in the write queue.
+// This variant tests IP_TOS.
+
+`./defaults.sh`
+
+// Establish a connection.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_IP, IP_MTU_DISCOVER, [IP_PMTUDISC_DONT], 1) = 0
+   +0...0.010 connect(3, ..., ...) = 0
+
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+ +.01 < S. 0:0(0) ack 1 win 65535 <mss 1460,nop,wscale 2,nop,nop,sackOK>
+   +0 > . 1:1(0) ack 1
+
+ +.01 write(3, ..., 5840) = 5840
+   +0 > P. 1:5841(5840) ack 1
+ +.01 < . 1:1(0) ack 5841 win 65535
+
+ +.01 write(3, ..., 5840) = 5840
+   +0 > P. 5841:11681(5840) ack 1
+ +.01 < . 1:1(0) ack 11681 win 65535
+
+ +.01 write(3, ..., 14600) = 14600
+   +0 > P. 11681:26281(14600) ack 1
+
+// Try the socket option that we know can force a route refresh.
+   +0 setsockopt(3, SOL_IP, IP_TOS, [4], 1) = 0
+// Then revert to avoid routing/mangling/etc implications of that setting.
+   +0 setsockopt(3, SOL_IP, IP_TOS, [0], 1) = 0
+
+// Verify that we do not retransmit the SACKed segments.
+ +.01 < . 1:1(0) ack 13141 win 65535 <sack 16061:17521 20441:26281,nop,nop>
+   +0 > . 13141:16061(2920) ack 1
+   +0 > P. 17521:20441(2920) ack 1
+ +.01 < . 1:1(0) ack 26281 win 65535
diff --git a/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-2-6-8-3-9-nofack.pkt b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-2-6-8-3-9-nofack.pkt
new file mode 100644
index 000000000000..f185e1ac57ea
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-2-6-8-3-9-nofack.pkt
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test shifting of newly-SACKed ranges onto the previous already-SACKed skb.
+// This variant tests non-FACK SACK with SACKs coming in the order
+// 2 6 8 3 9, to test what happens when we get a new SACKed range
+// (for packet 3) that is on the right of an existing SACKed range
+// (for packet 2).
+
+`./defaults.sh`
+
+// Establish a connection and send 10 MSS.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 1024
+   +0 accept(3, ..., ...) = 4
+
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+  +.1 < . 1:1(0) ack 1 win 257 <sack 2001:3001,nop,nop>
++.001 < . 1:1(0) ack 1 win 257 <sack 2001:3001 6001:7001,nop,nop>
++.001 < . 1:1(0) ack 1 win 257 <sack 2001:3001 6001:7001 8001:9001,nop,nop>
+
+// 3 SACKed packets, so we enter Fast Recovery.
+   +0 > . 1:1001(1000) ack 1
+   +0 %{ assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state }%
+   +0 %{ assert tcpi_lost == 6, tcpi_lost }%
+
+// SACK for 3001:4001.
+// This SACK for an adjacent range causes the sender to
+// shift the newly-SACKed range onto the previous skb.
++.007 < . 1:1(0) ack 1 win 257 <sack 2001:4001 6001:7001 8001:9001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
+   +0 %{ assert tcpi_lost == 5, tcpi_lost }%
+   +0 %{ assert tcpi_reordering == 6, tcpi_reordering }%   // 8001:9001 -> 3001:4001 is 6
+
+// SACK for 9001:10001.
+ +.01 < . 1:1(0) ack 1 win 257 <sack 2001:4001 6001:7001 8001:10001,nop,nop>
+   +0 %{ assert tcpi_lost == 5, tcpi_lost }%
+
+// ACK for 1:1001 as packets from t=0.303 arrive.
++.083 < . 1:1(0) ack 1001 win 257 <sack 2001:4001 6001:7001 8001:10001,nop,nop>
+   +0 %{ assert tcpi_lost == 4,tcpi_lost }%
+
+// ACK for 1:4001 as packets from t=0.310 arrive.
++.017 < . 1:1(0) ack 4001 win 257 <sack 6001:7001 8001:10001,nop,nop>
+   +0 %{ assert tcpi_lost == 3,tcpi_lost }%
+
+// ACK for 1:7001 as packets from t=0.320 arrive.
+ +.01 < . 1:1(0) ack 7001 win 257 <sack 8001:10001,nop,nop>
+
+// ACK for all data as packets from t=0.403 arrive.
+  +.1 < . 1:1(0) ack 10001 win 257
+   +0 %{
+assert tcpi_ca_state == TCP_CA_Open, tcpi_ca_state
+assert tcpi_unacked == 0, tcpi_unacked
+assert tcpi_sacked == 0, tcpi_sacked
+assert tcpi_lost == 0, tcpi_lost
+assert tcpi_retrans == 0, tcpi_retrans
+}%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-3-4-8-9-fack.pkt b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-3-4-8-9-fack.pkt
new file mode 100644
index 000000000000..0093b4973934
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-3-4-8-9-fack.pkt
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test shifting of newly-SACKed ranges onto the previous already-SACKed skb.
+// This variant tests the case where we mark packets 0-4 lost, then
+// get a SACK for 3, and then a SACK for 4.
+
+`./defaults.sh`
+
+// Establish a connection and send 10 MSS.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 1024
+   +0 accept(3, ..., ...) = 4
+
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+// SACK for 7001:8001. Using RACK we delay the fast retransmit.
+  +.1 < . 1:1(0) ack 1 win 257 <sack 7001:8001,nop,nop>
+// RACK reordering timer
++.027 > . 1:1001(1000) ack 1
+   +0 %{
+assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state
+assert tcpi_lost == 7, tcpi_lost  # RACK thinks 1:7001 are lost
+assert tcpi_reordering == 3, tcpi_reordering
+}%
+
+// SACK for 3001:4001.
++.002 < . 1:1(0) ack 1 win 257 <sack 3001:4001 7001:8001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
+   +0 %{
+assert tcpi_lost == 6, tcpi_lost              # since 3001:4001 is no longer lost
+assert tcpi_reordering == 5, tcpi_reordering  # 7001:8001 -> 3001:4001
+}%
+
+// SACK for 4001:5001.
+// This SACK for an adjacent range causes the sender to
+// shift the newly-SACKed range onto the previous skb.
+// It uses the RFC3517 algorithm to mark 1:3001 lost
+// because >=3 higher-sequence packets are SACKed.
++.002 < . 1:1(0) ack 1 win 257 <sack 3001:5001 7001:8001,nop,nop>
+   +0 > . 2001:3001(1000) ack 1
+   +0 %{
+assert tcpi_lost == 5,tcpi_lost         # SACK/RFC3517 thinks 1:3001 are lost
+}%
+
+// SACK for 8001:9001.
++.002 < . 1:1(0) ack 1 win 257 <sack 3001:5001 7001:9001,nop,nop>
+
+// SACK for 9001:10001.
++.002 < . 1:1(0) ack 1 win 257 <sack 3001:5001 7001:10001,nop,nop>
+   +0 > . 5001:6001(1000) ack 1
+
+// To simplify clean-up, say we get an ACK for all data.
+  +.1 < . 1:1(0) ack 10001 win 257
+   +0 %{
+assert tcpi_ca_state == TCP_CA_Open, tcpi_ca_state
+assert tcpi_unacked == 0, tcpi_unacked
+assert tcpi_sacked == 0, tcpi_sacked
+assert tcpi_lost == 0, tcpi_lost
+assert tcpi_retrans == 0, tcpi_retrans
+}%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-5-6-8-9-fack.pkt b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-5-6-8-9-fack.pkt
new file mode 100644
index 000000000000..980a832dc81c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_sack_sack-shift-sacked-7-5-6-8-9-fack.pkt
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test shifting of newly-SACKed ranges onto the previous already-SACKed skb.
+// This variant tests the case where we mark packets 0-4 lost, then
+// get a SACK for 5, and then a SACK for 6.
+
+`./defaults.sh`
+
+// Establish a connection and send 10 MSS.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 1024
+   +0 accept(3, ..., ...) = 4
+
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+
+// SACK for 7001:8001. Using RACK we delay a fast retransmit.
+  +.1 < . 1:1(0) ack 1 win 257 <sack 7001:8001,nop,nop>
++.027 > . 1:1001(1000) ack 1
+   +0 %{
+assert tcpi_ca_state == TCP_CA_Recovery, tcpi_ca_state
+assert tcpi_lost == 7,tcpi_lost         # RACK thinks 1:7001 are lost
+assert tcpi_reordering == 3, tcpi_reordering
+}%
+
+// SACK for 5001:6001.
+   +0 < . 1:1(0) ack 1 win 257 <sack 5001:6001 7001:8001,nop,nop>
+   +0 > . 1001:2001(1000) ack 1
+   +0 %{
+assert tcpi_lost == 6, tcpi_lost
+assert tcpi_reordering == 3, tcpi_reordering  # 7001:8001 -> 5001:6001 is 3
+}%
+
+// SACK for 6001:7001.
+// This SACK for an adjacent range causes the sender to
+// shift the newly-SACKed range onto the previous skb.
+   +0 < . 1:1(0) ack 1 win 257 <sack 5001:8001,nop,nop>
+   +0 > . 2001:3001(1000) ack 1
+   +0 %{ assert tcpi_lost == 5, tcpi_lost }%
+
+// SACK for 8001:9001.
+   +0 < . 1:1(0) ack 1 win 257 <sack 5001:9001,nop,nop>
+   +0 > . 3001:4001(1000) ack 1
+
+// SACK for 9001:10001.
+   +0 < . 1:1(0) ack 1 win 257 <sack 5001:10001,nop,nop>
+   +0 > . 4001:5001(1000) ack 1
+
+// To simplify clean-up, say we get an ACK for all data.
+  +.1 < . 1:1(0) ack 10001 win 257
+   +0 %{
+assert tcpi_ca_state == TCP_CA_Open, tcpi_ca_state
+assert tcpi_unacked == 0, tcpi_unacked
+assert tcpi_sacked == 0, tcpi_sacked
+assert tcpi_lost == 0, tcpi_lost
+assert tcpi_retrans == 0, tcpi_retrans
+}%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_sendfile_sendfile-simple.pkt b/tools/testing/selftests/net/packetdrill/tcp_sendfile_sendfile-simple.pkt
new file mode 100644
index 000000000000..6740859a1360
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_sendfile_sendfile-simple.pkt
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0
+// Simplest possible test of open() and then sendfile().
+// We write some zeroes into a file (since packetdrill expects payloads
+// to be all zeroes) and then open() the file, then use sendfile()
+// and verify that the correct number of zeroes goes out.
+
+`./defaults.sh
+/bin/rm -f /tmp/testfile
+/bin/dd bs=1 count=5 if=/dev/zero of=/tmp/testfile status=none
+`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 open("/tmp/testfile", O_RDONLY) = 5
+   +0 sendfile(4, 5, [0], 5) = 5
+   +0 > P. 1:6(5) ack 1
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-1pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-1pkt.pkt
new file mode 100644
index 000000000000..795c476d222d
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-1pkt.pkt
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when not application-limited, so that
+// the cwnd continues to grow.
+// In this variant, the receiver ACKs every packet.
+
+// Set up config. To keep things simple, disable the
+// mechanism that defers sending in order to send bigger TSO packets.
+`./defaults.sh
+sysctl -q net.ipv4.tcp_tso_win_divisor=100`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 30000) = 30000
+   +0 > P. 1:10001(10000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
++.105 < . 1:1(0) ack 1001 win 257
+   +0 > P. 10001:12001(2000) ack 1
+
+   +0 < . 1:1(0) ack 2001 win 257
+   +0 > P. 12001:14001(2000) ack 1
+
++.005 < . 1:1(0) ack 3001 win 257
+   +0 > P. 14001:16001(2000) ack 1
+
+   +0 < . 1:1(0) ack 4001 win 257
+   +0 > P. 16001:18001(2000) ack 1
+
++.005 < . 1:1(0) ack 5001 win 257
+   +0 > P. 18001:20001(2000) ack 1
+
+   +0 < . 1:1(0) ack 6001 win 257
+   +0 > P. 20001:22001(2000) ack 1
+
++.005 < . 1:1(0) ack 7001 win 257
+   +0 > P. 22001:24001(2000) ack 1
+
+   +0 < . 1:1(0) ack 8001 win 257
+   +0 > P. 24001:26001(2000) ack 1
+
++.005 < . 1:1(0) ack 9001 win 257
+   +0 > P. 26001:28001(2000) ack 1
+
+   +0 < . 1:1(0) ack 10001 win 257
+   +0 > P. 28001:30001(2000) ack 1
+
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-5pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-5pkt.pkt
new file mode 100644
index 000000000000..9212ae1fd0f2
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-5pkt.pkt
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when an outstanding flight of packets is
+// less than the current cwnd, and not big enough to bump up cwnd.
+//
+// In this variant, the receiver ACKs every other packet,
+// approximating standard delayed ACKs.
+
+// Set up config.
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+
+// Only send 5 packets.
+   +0 write(4, ..., 5000) = 5000
+   +0 > P. 1:5001(5000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 2001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 10, 'cwnd=%d' % tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 4001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 10, 'cwnd=%d' % tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 5001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 10, 'cwnd=%d' % tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-6pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-6pkt.pkt
new file mode 100644
index 000000000000..416c901ddf51
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt-send-6pkt.pkt
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when an outstanding flight of packets is
+// less than the current cwnd, but still big enough that in slow
+// start we want to increase our cwnd a little.
+//
+// In this variant, the receiver ACKs every other packet,
+// approximating standard delayed ACKs.
+
+// Set up config.
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+
+// Only send 6 packets.
+   +0 write(4, ..., 6000) = 6000
+   +0 > P. 1:6001(6000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 2001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 12, 'cwnd=%d' % tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 4001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 12, 'cwnd=%d' % tcpi_snd_cwnd }%
+
+   +0 < . 1:1(0) ack 6001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 12, 'cwnd=%d' % tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt.pkt
new file mode 100644
index 000000000000..a894b7d4559c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-2pkt.pkt
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when not application-limited, so that
+// the cwnd continues to grow.
+// In this variant, the receiver ACKs every other packet,
+// approximating standard delayed ACKs.
+
+// Set up config. To keep things simple, disable the
+// mechanism that defers sending in order to send bigger TSO packets.
+`./defaults.sh
+sysctl -q net.ipv4.tcp_tso_win_divisor=100`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 30000) = 30000
+   +0 > P. 1:10001(10000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
++.105 < . 1:1(0) ack 2001 win 257
+   +0 > P. 10001:14001(4000) ack 1
+
++.005 < . 1:1(0) ack 4001 win 257
+   +0 > P. 14001:18001(4000) ack 1
+
++.005 < . 1:1(0) ack 6001 win 257
+   +0 > P. 18001:22001(4000) ack 1
+
++.005 < . 1:1(0) ack 8001 win 257
+   +0 > P. 22001:26001(4000) ack 1
+
++.005 < . 1:1(0) ack 10001 win 257
+   +0 > P. 26001:30001(4000) ack 1
+
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-4pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-4pkt.pkt
new file mode 100644
index 000000000000..065fae9e9abd
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-ack-per-4pkt.pkt
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when not application-limited, so that
+// the cwnd continues to grow.
+// In this variant, the receiver sends one ACK per 4 packets.
+
+// Set up config. To keep things simple, disable the
+// mechanism that defers sending in order to send bigger TSO packets.
+`./defaults.sh
+sysctl -q net.ipv4.tcp_tso_win_divisor=100`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 30000) = 30000
+   +0 > P. 1:10001(10000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+ +.11 < . 1:1(0) ack 4001 win 257
+   +0 > P. 10001:18001(8000) ack 1
+
+ +.01 < . 1:1(0) ack 8001 win 257
+   +0 > P. 18001:26001(8000) ack 1
+
++.005 < . 1:1(0) ack 10001 win 257
+   +0 > P. 26001:30001(4000) ack 1
+
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-idle.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-idle.pkt
new file mode 100644
index 000000000000..11b213be1138
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-idle.pkt
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start after idle
+// This test expects tso size to be at least initial cwnd * mss
+
+`./defaults.sh
+./set_sysctls.py /proc/sys/net/ipv4/tcp_slow_start_after_idle=1 \
+		 /proc/sys/net/ipv4/tcp_min_tso_segs=10`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 511
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 26000) = 26000
+   +0 > P. 1:5001(5000) ack 1
+   +0 > P. 5001:10001(5000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+  +.1 < . 1:1(0) ack 10001 win 511
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
+   +0 > P. 10001:20001(10000) ack 1
+   +0 > P. 20001:26001(6000) ack 1
+
+  +.1 < . 1:1(0) ack 26001 win 511
+   +0 %{ assert tcpi_snd_cwnd == 36, tcpi_snd_cwnd }%
+
+   +2 write(4, ..., 20000) = 20000
+// If slow start after idle works properly, we should send 5 MSS here (cwnd/2)
+   +0 > P. 26001:31001(5000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+// Reset sysctls
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-win-update.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-win-update.pkt
new file mode 100644
index 000000000000..577ed8c8852c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-after-win-update.pkt
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start after window update
+// This test expects tso size to be at least initial cwnd * mss
+
+`./defaults.sh
+./set_sysctls.py /proc/sys/net/ipv4/tcp_slow_start_after_idle=1 \
+		 /proc/sys/net/ipv4/tcp_min_tso_segs=10`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 65535 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 511
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 26000) = 26000
+   +0 > P. 1:5001(5000) ack 1
+   +0 > P. 5001:10001(5000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
+  +.1 < . 1:1(0) ack 10001 win 511
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
+   +0 > P. 10001:20001(10000) ack 1
+   +0 > P. 20001:26001(6000) ack 1
+
+  +.1 < . 1:1(0) ack 26001 win 0
+   +0 %{ assert tcpi_snd_cwnd == 36, tcpi_snd_cwnd }%
+
+   +0 write(4, ..., 20000) = 20000
+// 1st win0 probe
++.3~+.310 > . 26000:26000(0) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 36, tcpi_snd_cwnd }%
+
+// 2nd win0 probe
++.6~+.620 > . 26000:26000(0) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 36, tcpi_snd_cwnd }%
+
+// 3rd win0 probe
++1.2~+1.240 > . 26000:26000(0) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 36, tcpi_snd_cwnd }%
+
+  +.9 < . 1:1(0) ack 26001 win 511
+   +0 > P. 26001:31001(5000) ack 1
+
+// Reset sysctls
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited-9-packets-out.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited-9-packets-out.pkt
new file mode 100644
index 000000000000..869f32c35a2a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited-9-packets-out.pkt
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when application-limited: in this case,
+// with IW10, if we don't fully use our cwnd but instead
+// send just 9 packets, then cwnd should grow to twice that
+// value, or 18 packets.
+
+// Set up config.
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 9000) = 9000
+   +0 > P. 1:9001(9000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
++.105 < . 1:1(0) ack 2001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 12, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 4001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 14, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 6001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 16, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 8001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 18, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 9001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 18, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited.pkt
new file mode 100644
index 000000000000..0f77b7955db6
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-app-limited.pkt
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when application-limited: in this case,
+// with IW10, if we send exactly 10 packets then cwnd should grow to 20.
+
+// Set up config.
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 10000) = 10000
+   +0 > P. 1:10001(10000) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
++.105 < . 1:1(0) ack 2001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 12, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 4001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 14, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 6001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 16, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 8001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 18, tcpi_snd_cwnd }%
+
++.005 < . 1:1(0) ack 10001 win 257
+   +0 %{ assert tcpi_snd_cwnd == 20, tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-fq-ack-per-2pkt.pkt b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-fq-ack-per-2pkt.pkt
new file mode 100644
index 000000000000..7e9c83d617c2
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_slow_start_slow-start-fq-ack-per-2pkt.pkt
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test of slow start when not application-limited, so that
+// the cwnd continues to grow, even if TSQ triggers.
+// In this variant, the receiver ACKs every other packet,
+// approximating standard delayed ACKs.
+
+// Note we use FQ/pacing to check if TCP Small Queues is not hurting
+
+`./defaults.sh
+tc qdisc replace dev tun0 root fq
+sysctl -q net/ipv4/tcp_pacing_ss_ratio=200
+sysctl -e -q net.ipv4.tcp_min_tso_segs=2`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+  +.1 < S 0:0(0) win 32792 <mss 1460,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.1 < . 1:1(0) ack 1 win 500
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_SNDBUF, [200000], 4) = 0
+
+   +0 write(4, ..., 40000) = 40000
+// This might change if we cook the initial packet with 10 MSS.
+   +0 > P. 1:2921(2920) ack 1
+   +0 > P. 2921:5841(2920) ack 1
+   +0 > P. 5841:8761(2920) ack 1
+   +0 > P. 8761:11681(2920) ack 1
+   +0 > P. 11681:14601(2920) ack 1
+   +0 %{ assert tcpi_snd_cwnd == 10, tcpi_snd_cwnd }%
+
++.105 < . 1:1(0) ack 2921 win 500
+   +0 %{ assert tcpi_snd_cwnd == 12, tcpi_snd_cwnd }%
+
+// Note: after this commit : "net_sched: sch_fq: account for schedule/timers drifts"
+// FQ notices that this packet missed the 'time to send next packet' computed
+// when prior packet (11681:14601(2920)) was sent.
+// So FQ will allow following packet to be sent a bit earlier (quantum/2)
+// (FQ commit allows an application/cwnd limited flow to get at most quantum/2 extra credit)
+   +0 > P. 14601:17521(2920) ack 1
+
++.003 < . 1:1(0) ack 5841 win 500
+   +0 %{ assert tcpi_snd_cwnd == 14, tcpi_snd_cwnd }%
+
++.001 > P. 17521:20441(2920) ack 1
+
++.001 < . 1:1(0) ack 8761 win 500
+   +0 %{ assert tcpi_snd_cwnd == 16, tcpi_snd_cwnd }%
+
+// remaining packets are delivered at a constant rate.
++.007 > P. 20441:23361(2920) ack 1
+
++.002 < . 1:1(0) ack 11681 win 500
+   +0 %{ assert tcpi_snd_cwnd == 18, tcpi_snd_cwnd }%
++.001 < . 1:1(0) ack 14601 win 500
+
++.004 > P. 23361:26281(2920) ack 1
+
++.007 > P. 26281:29201(2920) ack 1
+
+   +0 %{ assert tcpi_snd_cwnd == 20, 'cwnd=%d' % tcpi_snd_cwnd }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_splice_tcp_splice_loop_test.pkt b/tools/testing/selftests/net/packetdrill/tcp_splice_tcp_splice_loop_test.pkt
new file mode 100644
index 000000000000..0cbd43253236
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_splice_tcp_splice_loop_test.pkt
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+`./defaults.sh`
+
+// Initialize a server socket
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_IP, IP_FREEBIND, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+// Connection should get accepted
+   +0 < S 0:0(0) win 32972 <mss 1460,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <...>
+   +0 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+
+   +0 pipe([5, 6]) = 0
+   +0 < U. 1:101(100) ack 1 win 257 urg 100
+   +0 splice(4, NULL, 6, NULL, 99, 0) = 99
+   +0 splice(4, NULL, 6, NULL, 1, 0) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_fastopen-invalid-buf-ptr.pkt b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_fastopen-invalid-buf-ptr.pkt
new file mode 100644
index 000000000000..8940726a3ec2
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_fastopen-invalid-buf-ptr.pkt
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test TCP fastopen behavior with NULL as buffer pointer, but a non-zero
+// buffer length.
+`./defaults.sh
+./set_sysctls.py /proc/sys/net/ipv4/tcp_timestamps=0`
+
+// Cache warmup: send a Fast Open cookie request
+ 0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
++0 setsockopt(3, SOL_TCP, TCP_FASTOPEN_CONNECT, [1], 4) = 0
++0 connect(3, ..., ...) = -1 EINPROGRESS (Operation is now in progress)
++0 > S 0:0(0) <mss 1460,nop,nop,sackOK,nop,wscale 8,FO,nop,nop>
++0 < S. 123:123(0) ack 1 win 14600 <mss 1460,nop,nop,sackOK,nop,wscale 6,FO abcd1234,nop,nop>
++0 > . 1:1(0) ack 1
++0 close(3) = 0
++0 > F. 1:1(0) ack 1
++0 < F. 1:1(0) ack 2 win 92
++0 > .  2:2(0) ack 2
+
+// Test with MSG_FASTOPEN without TCP_FASTOPEN_CONNECT.
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
++0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
++0 sendto(4, NULL, 1, MSG_FASTOPEN, ..., ...) = -1
++0 close(4) = 0
+
+// Test with TCP_FASTOPEN_CONNECT without MSG_FASTOPEN.
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 5
++0 fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK) = 0
++0 setsockopt(5, SOL_TCP, TCP_FASTOPEN_CONNECT, [1], 4) = 0
++0 connect(5, ..., ...) = 0
++0 sendto(5, NULL, 1, 0, ..., ...) = -1
++0 close(5) = 0
+
+// Test with both TCP_FASTOPEN_CONNECT and MSG_FASTOPEN.
++0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 6
++0 fcntl(6, F_SETFL, O_RDWR|O_NONBLOCK) = 0
++0 setsockopt(6, SOL_TCP, TCP_FASTOPEN_CONNECT, [1], 4) = 0
++0 connect(6, ..., ...) = 0
++0 sendto(6, NULL, 1, MSG_FASTOPEN, ..., ...) = -1
++0 close(6) = 0
+
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_sendmsg-empty-iov.pkt b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_sendmsg-empty-iov.pkt
new file mode 100644
index 000000000000..454441e7ecff
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_sendmsg-empty-iov.pkt
@@ -0,0 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test that we correctly skip zero-length IOVs.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,wscale 8>
+ +.01 < . 1:1(0) ack 1 win 257
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_TCP, TCP_NODELAY, [1], 4) = 0
+
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(4)=[{..., 0}, {..., 40}, {..., 0}, {..., 20}],
+                  msg_flags=0}, 0) = 60
+   +0 > P. 1:61(60) ack 1
+ +.01 < . 1:1(0) ack 61 win 257
+
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(4)=[{..., 0}, {..., 0}, {..., 0}, {..., 0}],
+                  msg_flags=0}, MSG_ZEROCOPY) = 0
+
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(4)=[{..., 0}, {..., 10}, {..., 0}, {..., 50}],
+                  msg_flags=0}, MSG_ZEROCOPY) = 60
+   +0 > P. 61:121(60) ack 1
+ +.01 < . 1:1(0) ack 121 win 257
diff --git a/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_syscall-invalid-buf-ptr.pkt b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_syscall-invalid-buf-ptr.pkt
new file mode 100644
index 000000000000..59f5903f285c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_syscall_bad_arg_syscall-invalid-buf-ptr.pkt
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test kernel behavior with NULL as buffer pointer
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+  +.2 < . 1:1(0) ack 1 win 514
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 write(4, NULL, 1000) = -1 EFAULT (Bad address)
+   +0 send(4, NULL, 1000, 0) = -1 EFAULT (Bad address)
+   +0 sendto(4, NULL, 1000, 0, ..., ...) = -1 EFAULT (Bad address)
+
+   +0 < . 1:1001(1000) ack 1 win 200
+   +0 read(4, NULL, 1000) = -1 EFAULT (Bad address)
+   +0 recv(4, NULL, 1000, 0) = -1 EFAULT (Bad address)
+   +0 recvfrom(4, NULL, 1000, 0, ..., ...) = -1 EFAULT (Bad address)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-last_data_recv.pkt b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-last_data_recv.pkt
new file mode 100644
index 000000000000..d7fdb43a8e89
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-last_data_recv.pkt
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test tcpi_last_data_recv for active session
+`./defaults.sh`
+
+// Create a socket and set it to non-blocking.
++0    socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
++0    fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
++0    fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
++0    connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
++0    > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
++.030 < S. 0:0(0) ack 1 win 10000 <mss 1000,sackOK,nop,nop,nop,wscale 8>
++0    > . 1:1(0) ack 1
+
++1 %{ assert 990 <= tcpi_last_data_recv <= 1010, tcpi_last_data_recv }%
+
++0    < . 1:1001(1000) ack 1 win 300
++0    > . 1:1(0) ack 1001
+
++0 %{ assert tcpi_last_data_recv <= 10, tcpi_last_data_recv }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-rwnd-limited.pkt b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-rwnd-limited.pkt
new file mode 100644
index 000000000000..a9bcd46f6cb6
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-rwnd-limited.pkt
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test rwnd limited time in tcp_info for client side.
+
+`./defaults.sh`
+
+// Create a socket and set it to non-blocking.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
+   +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+   +0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+
+// Server advertises 0 receive window.
+ +.01 < S. 0:0(0) ack 1 win 0 <mss 1000,nop,nop,sackOK>
+
+   +0 > . 1:1(0) ack 1
+   +0 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
+   +0 fcntl(3, F_SETFL, O_RDWR) = 0   // set back to blocking
+
+// Make sure that initial rwnd limited time is 0.
+   +0 %{ assert tcpi_rwnd_limited == 0, tcpi_rwnd_limited }%
+
+// Receive window limited time starts here.
+   +0 write(3, ..., 1000) = 1000
+
+// Check that rwnd limited time in tcp_info is around 0.1s.
+  +.1 %{ assert 98000 <= tcpi_rwnd_limited <= 110000, tcpi_rwnd_limited }%
+
+// Server opens the receive window.
+  +.1 < . 1:1(0) ack 1 win 2000
+
+// Check that rwnd limited time in tcp_info is around 0.2s.
+   +0 %{ assert 198000 <= tcpi_rwnd_limited <= 210000, tcpi_rwnd_limited }%
+
+   +0 > P. 1:1001(1000) ack 1
+
+// Server advertises a very small receive window.
+ +.03 < . 1:1(0) ack 1001 win 10
+
+// Receive window limited time starts again.
+   +0 write(3, ..., 1000) = 1000
+
+// Server opens the receive window again.
+  +.1 < . 1:1(0) ack 1001 win 2000
+// Check that rwnd limited time in tcp_info is around 0.3s
+// and busy time is 0.3 + 0.03 (server opened small window temporarily).
+   +0 %{ assert 298000 <= tcpi_rwnd_limited <= 310000, tcpi_rwnd_limited;\
+         assert 328000 <= tcpi_busy_time <= 340000, tcpi_busy_time;\
+}%
+
+   +0 > P. 1001:2001(1000) ack 1
+ +.02 < . 1:1(0) ack 2001 win 2000
+   +0 %{ assert 348000 <= tcpi_busy_time <= 360000, tcpi_busy_time }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-sndbuf-limited.pkt b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-sndbuf-limited.pkt
new file mode 100644
index 000000000000..f0de2acd0f8e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_tcp_info_tcp-info-sndbuf-limited.pkt
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test send-buffer-limited time in tcp_info for client side.
+`./defaults.sh`
+
+// Create a socket and set it to non-blocking.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
+   +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+   +0 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+ +.01 < S. 0:0(0) ack 1 win 10000 <mss 1000,sackOK,nop,nop,nop,wscale 8>
+   +0 > . 1:1(0) ack 1
+   +0 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
+   +0 fcntl(3, F_SETFL, O_RDWR) = 0   // set back to blocking
+   +0 setsockopt(3, SOL_SOCKET, SO_SNDBUF, [10000], 4) = 0
+   +0 getsockopt(3, SOL_SOCKET, SO_SNDBUF, [20000], [4]) = 0
+
+ +.09...0.14 write(3, ..., 150000) = 150000
+
+ +.01 < . 1:1(0) ack 10001 win 10000
+
+ +.01 < . 1:1(0) ack 30001 win 10000
+
+// cwnd goes from 40(60KB) to 80(120KB), and that we hit the tiny sndbuf limit 10KB
+ +.01 < . 1:1(0) ack 70001 win 10000
+
+ +.02 < . 1:1(0) ack 95001 win 10000
+   +0 %{ assert 19000 <= tcpi_sndbuf_limited <= 21000, tcpi_sndbuf_limited; \
+	 assert 49000 <= tcpi_busy_time <= 52000, tcpi_busy_time; \
+	 assert 0 == tcpi_rwnd_limited, tcpi_rwnd_limited }%
+
+// This ack frees up enough buffer so we are no longer
+// buffer limited (socket flag SOCK_NOSPACE is cleared)
+ +.02 < . 1:1(0) ack 150001 win 10000
+   +0 %{ assert 19000 <= tcpi_sndbuf_limited <= 21000, tcpi_sndbuf_limited;\
+	 assert 69000 <= tcpi_busy_time <= 73000, tcpi_busy_time;\
+	 assert 0 == tcpi_rwnd_limited, tcpi_rwnd_limited }%
diff --git a/tools/testing/selftests/net/packetdrill/tcp_timestamping_client-only-last-byte.pkt b/tools/testing/selftests/net/packetdrill/tcp_timestamping_client-only-last-byte.pkt
new file mode 100644
index 000000000000..2087ec0c746a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_timestamping_client-only-last-byte.pkt
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test that tx timestamping sends timestamps only for
+// the last byte of each sendmsg.
+`./defaults.sh
+`
+
+// Create a socket and set it to non-blocking.
+    0	socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0	fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
+   +0	fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+// Establish connection and verify that there was no error.
+   +0	connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+ +.01 < S. 0:0(0) ack 1 win 20000 <mss 1000,nop,nop,sackOK>
+   +0 > . 1:1(0) ack 1
+   +0	getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
+   +0	fcntl(3, F_SETFL, O_RDWR) = 0   // set back to blocking
+
+   +0	setsockopt(3, SOL_SOCKET, SO_TIMESTAMPING,
+		   [SOF_TIMESTAMPING_TX_SCHED | SOF_TIMESTAMPING_TX_SOFTWARE |
+		    SOF_TIMESTAMPING_TX_ACK | SOF_TIMESTAMPING_SOFTWARE |
+		    SOF_TIMESTAMPING_OPT_ID], 4) = 0
+
+   +0	write(3, ..., 11000) = 11000
+   +0	> P. 1:10001(10000) ack 1
+ +.01	< . 1:1(0) ack 10001 win 4000
+   +0	> P. 10001:11001(1000) ack 1
+ +.01	< . 1:1(0) ack 11001 win 4000
+
+// Make sure that internal TCP timestamps are not overwritten and we have sane
+// RTT measurement.
+   +0	%{
+assert 5000 <= tcpi_rtt <= 20000, 'srtt=%d us' % tcpi_rtt
+}%
+
+// SCM_TSTAMP_SCHED for the last byte should be received almost immediately
+// once 10001 is acked at t=20ms.
+// setsockopt(..., [SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_OPT_ID], ...)
+// is called after when SYN is acked. So, we expect the last byte of the first
+// chunk to have a timestamp key of 10999 (i.e., 11000 - 1).
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=20000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SCHED,
+				    ee_data=10999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_SND for the last byte should be received almost immediately
+// once 10001 is acked at t=20ms.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=20000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SND,
+				    ee_data=10999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_ACK for the last byte should be received at t=30ms.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=30000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_ACK,
+				    ee_data=10999}}
+		    ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_timestamping_partial.pkt b/tools/testing/selftests/net/packetdrill/tcp_timestamping_partial.pkt
new file mode 100644
index 000000000000..876024a31110
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_timestamping_partial.pkt
@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test tx timestamping for partial writes (IPv4).
+`./defaults.sh
+`
+
+// Create a socket and set it to non-blocking.
+    0	socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0	fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
+   +0	fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+
+// Establish connection and verify that there was no error.
+   +0	connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0	> S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 8>
+ +.01	< S. 0:0(0) ack 1 win 2000 <mss 1000,sackOK,TS val 700 ecr 100,nop,wscale 7>
+   +0	> . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 700>
+   +0	getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
+
+   +0	setsockopt(3, SOL_SOCKET, SO_SNDBUF, [1000], 4) = 0
+   +0	setsockopt(3, SOL_SOCKET, SO_TIMESTAMPING,
+		   [SOF_TIMESTAMPING_TX_SCHED | SOF_TIMESTAMPING_TX_SOFTWARE |
+		    SOF_TIMESTAMPING_TX_ACK | SOF_TIMESTAMPING_SOFTWARE |
+		    SOF_TIMESTAMPING_OPT_ID], 4) = 0
+
+// We have a partial write.
+   +0	write(3, ..., 10000) = 2964
+   +0	> . 1:989(988) ack 1 <nop,nop,TS val 110 ecr 700>
+   +0	> P. 989:1977(988) ack 1 <nop,nop,TS val 110 ecr 700>
+ +.01	< . 1:1(0) ack 1977 win 92 <nop,nop,TS val 800 ecr 200>
+   +0	> P. 1977:2965(988) ack 1 <nop,nop,TS val 114 ecr 800>
+ +.01	< . 1:1(0) ack 2965 win 92 <nop,nop,TS val 800 ecr 200>
+
+// Make sure that internal TCP timestamps are not overwritten and we have sane
+// RTT measurement.
+   +0	%{
+assert 5000 <= tcpi_rtt <= 20000, 'srtt=%d us' % tcpi_rtt
+}%
+
+// SCM_TSTAMP_SCHED for the first chunk should be received almost immediately
+// after the first ack at t=20ms.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=20000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SCHED,
+				    ee_data=2963}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_SND for the first chunk should be received almost immediately
+// after the first ack at t=20ms.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=20000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SND,
+				    ee_data=2963}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_ACK for the first chunk should be received after the last ack at
+// t=30ms.
+   +0	recvmsg(3, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=30000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_ACK,
+				    ee_data=2963}}
+		    ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt b/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt
new file mode 100644
index 000000000000..84d94780e6be
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_timestamping_server.pkt
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test tx timestamping for server-side (IPv4).
+`./defaults.sh
+`
+
+// Initialize connection
+    0	socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0	setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0	bind(3, ..., ...) = 0
+   +0	listen(3, 1) = 0
+
+   +0	< S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 10>
+   +0	> S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+ +.01	< . 1:1(0) ack 1 win 514
+
+   +0	accept(3, ..., ...) = 4
+   +0	setsockopt(4, SOL_SOCKET, SO_TIMESTAMPING,
+		   [SOF_TIMESTAMPING_TX_SCHED | SOF_TIMESTAMPING_TX_SOFTWARE |
+		    SOF_TIMESTAMPING_TX_ACK | SOF_TIMESTAMPING_SOFTWARE |
+		    SOF_TIMESTAMPING_OPT_ID], 4) = 0
+
+// Write two 2KB chunks.
+// setsockopt(..., [SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_OPT_ID], ...)
+// is called after when SYN is acked. So, we expect the last byte of the first
+// and the second chunks to have timestamp keys of 1999 (i.e., 2000 - 1) and
+// 3999 (i.e., 4000 - 1) respectively.
+   +0	write(4, ..., 2000) = 2000
+   +0	write(4, ..., 2000) = 2000
+   +0	> P. 1:2001(2000) ack 1
+   +0	> P. 2001:4001(2000) ack 1
+ +.01	< .  1:1(0) ack 2001 win 514
+ +.01	< .  1:1(0) ack 4001 win 514
+
+// Make sure that internal TCP timestamps are not overwritten and we have sane
+// RTT measurement.
+   +0	%{
+assert 5000 <= tcpi_rtt <= 20000, 'srtt=%d us' % tcpi_rtt
+}%
+
+// SCM_TSTAMP_SCHED for the first chunk should be received almost immediately
+// after write at t=10ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=10000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SCHED,
+				    ee_data=1999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_SND for the first chunk should be received almost immediately
+// after write at t=10ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=10000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SND,
+				    ee_data=1999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_SCHED for the second chunk should be received almost immediately
+// after that at t=10ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=10000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SCHED,
+				    ee_data=3999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_SND for the second chunk should be received almost immediately
+// after that at t=10ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=10000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_SND,
+				    ee_data=3999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_ACK for the first chunk should be received at t=20ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=20000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_ACK,
+				    ee_data=1999}}
+		    ]}, MSG_ERRQUEUE) = 0
+// SCM_TSTAMP_ACK for the second chunk should be received at t=30ms.
+   +0	recvmsg(4, {msg_name(...)=...,
+		    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE|MSG_TRUNC,
+                    msg_control=[
+			{cmsg_level=SOL_SOCKET,
+			 cmsg_type=SCM_TIMESTAMPING,
+			 cmsg_data={scm_sec=0,scm_nsec=30000000}},
+			{cmsg_level=CMSG_LEVEL_IP,
+			 cmsg_type=CMSG_TYPE_RECVERR,
+			 cmsg_data={ee_errno=ENOMSG,
+				    ee_origin=SO_EE_ORIGIN_TIMESTAMPING,
+				    ee_type=0,
+				    ee_code=0,
+				    ee_info=SCM_TSTAMP_ACK,
+				    ee_data=3999}}
+		    ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ts_recent_fin_tsval.pkt b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_fin_tsval.pkt
new file mode 100644
index 000000000000..e61424a7bd0a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_fin_tsval.pkt
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test that we send FIN packet with correct TSval
+--tcp_ts_tick_usecs=1000
+--tolerance_usecs=7000
+
+`./defaults.sh`
+
+// Create a socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+// Establish a connection.
+   +0 < S 0:0(0) win 20000 <mss 1000,sackOK,TS val 100 ecr 0>
+   +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 100 ecr 100>
+  +.1 < . 1:1(0) ack 1 win 20000 <nop,nop,TS val 200 ecr 100>
+   +0 accept(3, ..., ...) = 4
+
+   +1 close(4) = 0
+// Check that FIN TSval is updated properly, one second has passed since last sent packet.
+   +0 > F. 1:1(0) ack 1 <nop,nop,TS val 1200 ecr 200>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ts_recent_invalid_ack.pkt b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_invalid_ack.pkt
new file mode 100644
index 000000000000..174ce9a1bfc0
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_invalid_ack.pkt
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test that we reject TS val updates on a packet with invalid ACK sequence
+
+`./defaults.sh
+`
+
+// Create a socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+// Establish a connection.
+  +.1 < S 0:0(0) win 20000 <mss 1000,sackOK,TS val 100 ecr 0>
+   +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 100 ecr 100>
+  +.1 < . 1:1(0) ack 1 win 20000 <nop,nop,TS val 200 ecr 100>
+   +0 accept(3, ..., ...) = 4
+
+// bad packet with high tsval (its ACK sequence is above our sndnxt)
+   +0 < F. 1:1(0) ack 9999 win 20000 <nop,nop,TS val 200000 ecr 100>
+
+
+   +0 < . 1:1001(1000) ack 1 win 20000 <nop,nop,TS val 201 ecr 100>
+   +0 > . 1:1(0) ack 1001 <nop,nop,TS val 200 ecr 201>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_ts_recent_reset_tsval.pkt b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_reset_tsval.pkt
new file mode 100644
index 000000000000..2e3b3bb7493a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_ts_recent_reset_tsval.pkt
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+// Test that we send RST packet with correct TSval
+--tcp_ts_tick_usecs=1000
+
+`./defaults.sh`
+
+// Create a socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+// Establish a connection.
+   +0 < S 0:0(0) win 20000 <mss 1000,sackOK,TS val 100 ecr 0>
+   +0 > S. 0:0(0) ack 1 <mss 1460,sackOK,TS val 100 ecr 100>
+  +.1 < . 1:1(0) ack 1 win 20000 <nop,nop,TS val 200 ecr 100>
+   +0 accept(3, ..., ...) = 4
+
+   +0 < . 1:1001(1000) ack 1 win 20000 <nop,nop,TS val 201 ecr 100>
+   +0 > . 1:1(0) ack 1001 <nop,nop,TS val 200 ecr 201>
+
+   +1 close(4) = 0
+// Check that RST TSval is updated properly, one second has passed since last sent packet.
+   +0 > R. 1:1(0) ack 1001 <nop,nop,TS val 1200 ecr 201>
diff --git a/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user-timeout-probe.pkt b/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user-timeout-probe.pkt
new file mode 100644
index 000000000000..6882b8240a8a
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user-timeout-probe.pkt
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+
+   +0 < S 0:0(0) win 0 <mss 1460>
+   +0 > S. 0:0(0) ack 1 <mss 1460>
+
+  +.1 < . 1:1(0) ack 1 win 65530
+   +0 accept(3, ..., ...) = 4
+
+   +0 setsockopt(4, SOL_TCP, TCP_USER_TIMEOUT, [3000], 4) = 0
+   +0 write(4, ..., 24) = 24
+   +0 > P. 1:25(24) ack 1
+   +.1 < . 1:1(0) ack 25 win 65530
+   +0 %{ assert tcpi_probes == 0, tcpi_probes; \
+         assert tcpi_backoff == 0, tcpi_backoff }%
+
+// install a qdisc dropping all packets
+   +0 `tc qdisc delete dev tun0 root 2>/dev/null ; tc qdisc add dev tun0 root pfifo limit 0`
+
+   +0 write(4, ..., 24) = 24
+   // When qdisc is congested we retry every 500ms
+   // (TCP_RESOURCE_PROBE_INTERVAL) and therefore
+   // we retry 6 times before hitting 3s timeout.
+   // First verify that the connection is alive:
++3 write(4, ..., 24) = 24
+
+   // Now verify that shortly after that the socket is dead:
++1 write(4, ..., 24) = -1 ETIMEDOUT (Connection timed out)
+
+   +0 %{ assert tcpi_probes == 6, tcpi_probes; \
+         assert tcpi_backoff == 0, tcpi_backoff }%
+   +0 close(4) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user_timeout.pkt b/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user_timeout.pkt
new file mode 100644
index 000000000000..2efe02bfba9c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_user_timeout_user_timeout.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+`./defaults.sh`
+
+// Initialize connection
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+  +.1 < . 1:1(0) ack 1 win 32792
+
+
+   +0 accept(3, ..., ...) = 4
+
+// Okay, we received nothing, and decide to close this idle socket.
+// We set TCP_USER_TIMEOUT to 3 seconds because really it is not worth
+// trying hard to cleanly close this flow, at the price of keeping
+// a TCP structure in kernel for about 1 minute !
+   +2 setsockopt(4, SOL_TCP, TCP_USER_TIMEOUT, [3000], 4) = 0
+   +0 close(4) = 0
+
+   +0 > F. 1:1(0) ack 1
+  +.3~+.400 > F. 1:1(0) ack 1
+  +.3~+.400 > F. 1:1(0) ack 1
+  +.6~+.800 > F. 1:1(0) ack 1
+
+// We finally receive something from the peer, but it is way too late
+// Our socket vanished because TCP_USER_TIMEOUT was really small
+   +0 < . 1:2(1) ack 1 win 32792
+   +0 > R 1:1(0)
diff --git a/tools/testing/selftests/net/packetdrill/tcp_validate_validate-established-no-flags.pkt b/tools/testing/selftests/net/packetdrill/tcp_validate_validate-established-no-flags.pkt
new file mode 100644
index 000000000000..8bd60226ccfc
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_validate_validate-established-no-flags.pkt
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+// Verify that established connections drop a segment without the ACK flag set.
+
+`./defaults.sh`
+
+// Create a socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+// Establish a connection.
+   +0 < S 0:0(0) win 20000 <mss 1000,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK>
+ +.01 < . 1:1(0) ack 1 win 20000
+   +0 accept(3, ..., ...) = 4
+
+// Receive a segment with no flags set, verify that it's not enqueued.
+ +.01 < - 1:1001(1000) win 20000
+   +0 ioctl(4, SIOCINQ, [0]) = 0
+
+// Receive a segment with ACK flag set, verify that it is enqueued.
+ +.01 < . 1:1001(1000) ack 1 win 20000
+   +0 ioctl(4, SIOCINQ, [1000]) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_basic.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_basic.pkt
new file mode 100644
index 000000000000..0a0700afdaa3
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_basic.pkt
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+// basic zerocopy test:
+//
+// send a packet with MSG_ZEROCOPY and receive the notification ID
+// repeat and verify IDs are consecutive
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 4001:8001(4000) ack 1
+   +0 < . 1:1(0) ack 8001 win 257
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=1,
+                                    ee_data=1}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_batch.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_batch.pkt
new file mode 100644
index 000000000000..df91675d2991
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_batch.pkt
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+// batch zerocopy test:
+//
+// send multiple packets, then read one range of all notifications.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_MARK, [666], 4) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 4001:8001(4000) ack 1
+   +0 < . 1:1(0) ack 8001 win 257
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=1}}
+                  ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_client.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_client.pkt
new file mode 100644
index 000000000000..2963cfcb14df
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_client.pkt
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
+// Minimal client-side zerocopy test
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0...0 connect(4, ..., ...) = 0
+
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 0 ecr 0,nop,wscale 8>
+   +0 < S. 0:0(0) ack 1 win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > . 1:1(0) ack 1
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_closed.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_closed.pkt
new file mode 100644
index 000000000000..ea0c2fa73c2d
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_closed.pkt
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+// send with MSG_ZEROCOPY on a non-established socket
+//
+// verify that a send in state TCP_CLOSE correctly aborts the zerocopy
+// operation, specifically it does not increment the zerocopy counter.
+//
+// First send on a closed socket and wait for (absent) notification.
+// Then connect and send and verify that notification nr. is zero.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 4
+   +0 setsockopt(4, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = -1 EPIPE (Broken pipe)
+
+   +0.1 recvmsg(4, {msg_name(...)=...,
+                    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE,
+                    msg_control=[]}, MSG_ERRQUEUE) = -1 EAGAIN (Resource temporarily unavailable)
+
+   +0...0 connect(4, ..., ...) = 0
+
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 0 ecr 0,nop,wscale 8>
+   +0 < S. 0:0(0) ack 1 win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > . 1:1(0) ack 1
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_edge.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_edge.pkt
new file mode 100644
index 000000000000..4df978a9b82e
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_edge.pkt
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+// epoll zerocopy test:
+//
+// EPOLLERR is known to be not edge-triggered unlike EPOLLIN and EPOLLOUT but
+// it is not level-triggered either.
+//
+// fire two sends with MSG_ZEROCOPY and receive the acks. confirm that EPOLLERR
+// is correctly fired only once, when EPOLLET is set. send another packet with
+// MSG_ZEROCOPY. confirm that EPOLLERR is correctly fired again only once.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 epoll_create(1) = 5
+   +0 epoll_ctl(5, EPOLL_CTL_ADD, 4, {events=EPOLLOUT|EPOLLET, fd=4}) = 0
+   +0 epoll_wait(5, {events=EPOLLOUT, fd=4}, 1, 0) = 1
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 4001:8001(4000) ack 1
+   +0 < . 1:1(0) ack 8001 win 257
+
+// receive only one EPOLLERR for the two sends above.
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 8001:12001(4000) ack 1
+   +0 < . 1:1(0) ack 12001 win 257
+
+// receive only one EPOLLERR for the third send above.
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=2}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_exclusive.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_exclusive.pkt
new file mode 100644
index 000000000000..36b6edc4858c
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_exclusive.pkt
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+// epoll zerocopy test:
+//
+// EPOLLERR is known to be not edge-triggered unlike EPOLLIN and EPOLLOUT but
+// it is not level-triggered either. this tests verify that the same behavior is
+// maintained when we have EPOLLEXCLUSIVE.
+//
+// fire two sends with MSG_ZEROCOPY and receive the acks. confirm that EPOLLERR
+// is correctly fired only once, when EPOLLET is set. send another packet with
+// MSG_ZEROCOPY. confirm that EPOLLERR is correctly fired again only once.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 epoll_create(1) = 5
+   +0 epoll_ctl(5, EPOLL_CTL_ADD, 4,
+		{events=EPOLLOUT|EPOLLET|EPOLLEXCLUSIVE, fd=4}) = 0
+   +0 epoll_wait(5, {events=EPOLLOUT, fd=4}, 1, 0) = 1
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 4001:8001(4000) ack 1
+   +0 < . 1:1(0) ack 8001 win 257
+
+// receive only one EPOLLERR for the two sends above.
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 8001:12001(4000) ack 1
+   +0 < . 1:1(0) ack 12001 win 257
+
+// receive only one EPOLLERR for the third send above.
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=2}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_oneshot.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_oneshot.pkt
new file mode 100644
index 000000000000..1bea6f3b4558
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_epoll_oneshot.pkt
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+// epoll zerocopy test:
+//
+// This is a test to confirm that EPOLLERR is only fired once for an FD when
+// EPOLLONESHOT is set.
+//
+// fire two sends with MSG_ZEROCOPY and receive the acks. confirm that EPOLLERR
+// is correctly fired only once, when EPOLLONESHOT is set. send another packet
+// with MSG_ZEROCOPY. confirm that EPOLLERR is not fired. Rearm the FD and
+// confirm that EPOLLERR is correctly set.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   +0 fcntl(4, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 epoll_create(1) = 5
+   +0 epoll_ctl(5, EPOLL_CTL_ADD, 4,
+		{events=EPOLLOUT|EPOLLET|EPOLLONESHOT, fd=4}) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 1:4001(4000) ack 1
+   +0 < . 1:1(0) ack 4001 win 257
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 4001:8001(4000) ack 1
+   +0 < . 1:1(0) ack 8001 win 257
+
+// receive only one EPOLLERR for the two sends above.
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 send(4, ..., 4000, MSG_ZEROCOPY) = 4000
+   +0 > P. 8001:12001(4000) ack 1
+   +0 < . 1:1(0) ack 12001 win 257
+
+// receive no EPOLLERR for the third send above.
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+// rearm the FD and verify the EPOLLERR is fired again.
+   +0 epoll_ctl(5, EPOLL_CTL_MOD, 4, {events=EPOLLOUT|EPOLLONESHOT, fd=4}) = 0
+   +0 epoll_wait(5, {events=EPOLLERR|EPOLLOUT, fd=4}, 1, 0) = 1
+   +0 epoll_wait(5, {events=0, ptr=0}, 1, 0) = 0
+
+   +0 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=2}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-client.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-client.pkt
new file mode 100644
index 000000000000..e27c21ff5d18
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-client.pkt
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+// Fastopen client zerocopy test:
+//
+// send data with MSG_FASTOPEN | MSG_ZEROCOPY and verify that the
+// kernel returns the notification ID.
+//
+// Fastopen requires a stored cookie. Create two sockets. The first
+// one will have no data in the initial send. On return 0 the
+// zerocopy notification counter is not incremented. Verify this too.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+// Send a FastOpen request, no cookie yet so no data in SYN
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 sendto(3, ..., 500, MSG_FASTOPEN|MSG_ZEROCOPY, ..., ...) = -1 EINPROGRESS (Operation now in progress)
+   +0 > S 0:0(0) <mss 1460,sackOK,TS val 1000 ecr 0,nop,wscale 8,FO,nop,nop>
+ +.01 < S. 123:123(0) ack 1 win 14600 <mss 940,TS val 2000 ecr 1000,sackOK,nop,wscale 6, FO abcd1234,nop,nop>
+   +0 > . 1:1(0) ack 1 <nop,nop,TS val 1001 ecr 2000>
+
+// Read from error queue: no zerocopy notification
+   +1 recvmsg(3, {msg_name(...)=...,
+                    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE,
+                    msg_control=[]}, MSG_ERRQUEUE) = -1 EAGAIN (Resource temporarily unavailable)
+
+ +.01 close(3) = 0
+   +0 > F. 1:1(0) ack 1 <nop,nop,TS val 1002 ecr 2000>
+ +.01 < F. 1:1(0) ack 2 win 92 <nop,nop,TS val 2001 ecr 1002>
+   +0 > .  2:2(0) ack 2 <nop,nop,TS val 1003 ecr 2001>
+
+// Send another Fastopen request, now SYN will have data
+ +.07 `sysctl -q net.ipv4.tcp_timestamps=0`
+  +.1 socket(..., SOCK_STREAM, IPPROTO_TCP) = 5
+   +0 fcntl(5, F_SETFL, O_RDWR|O_NONBLOCK) = 0
+   +0 setsockopt(5, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 sendto(5, ..., 500, MSG_FASTOPEN|MSG_ZEROCOPY, ..., ...) = 500
+   +0 > S 0:500(500) <mss 1460,nop,nop,sackOK,nop,wscale 8,FO abcd1234,nop,nop>
+ +.05 < S. 5678:5678(0) ack 501 win 14600 <mss 1460,nop,nop,sackOK,nop,wscale 6>
+   +0 > . 501:501(0) ack 1
+
+// Read from error queue: now has first zerocopy notification
+   +0.5 recvmsg(5, {msg_name(...)=...,
+                    msg_iov(1)=[{...,0}],
+                    msg_flags=MSG_ERRQUEUE,
+                    msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-server.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-server.pkt
new file mode 100644
index 000000000000..b1fa77c77dfa
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_fastopen-server.pkt
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+// Fastopen server zerocopy test:
+//
+// send data with MSG_FASTOPEN | MSG_ZEROCOPY and verify that the
+// kernel returns the notification ID.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh
+ ./set_sysctls.py /proc/sys/net/ipv4/tcp_fastopen=0x207`
+
+// Set up a TFO server listening socket.
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+  +.1 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+   +0 setsockopt(3, SOL_TCP, TCP_FASTOPEN, [2], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+
+// Client sends a SYN with data.
+  +.1 < S 0:1000(1000) win 32792 <mss 1460,sackOK,nop,nop>
+   +0 > S. 0:0(0) ack 1001 <mss 1460,nop,nop,sackOK>
+
+// Server accepts and replies with data.
++.005 accept(3, ..., ...) = 4
+   +0 read(4, ..., 1024) = 1000
+   +0 sendto(4, ..., 1000, MSG_ZEROCOPY, ..., ...) = 1000
+   +0 > P. 1:1001(1000) ack 1001
+ +.05 < . 1001:1001(0) ack 1001 win 32792
+
+// Read from error queue: now has first zerocopy notification
+  +0.1 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                      {cmsg_level=CMSG_LEVEL_IP,
+                       cmsg_type=CMSG_TYPE_RECVERR,
+                       cmsg_data={ee_errno=0,
+                                  ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                  ee_type=0,
+                                  ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                  ee_info=0,
+                                  ee_data=0}}
+                  ]}, MSG_ERRQUEUE) = 0
+
+`/tmp/sysctl_restore_${PPID}.sh`
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_maxfrags.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_maxfrags.pkt
new file mode 100644
index 000000000000..2f5317d0a9fa
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_maxfrags.pkt
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0
+// tcp_MAX_SKB_FRAGS test
+//
+// Verify that sending an iovec of tcp_MAX_SKB_FRAGS + 1 elements will
+// 1) fit in a single packet without zerocopy
+// 2) spill over into a second packet with zerocopy,
+//    because each iovec element becomes a frag
+// 3) the PSH bit is set on an skb when it runs out of fragments
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+
+   // Each pinned zerocopy page is fully accounted to skb->truesize.
+   // This test generates a worst case packet with each frag storing
+   // one byte, but increasing truesize with a page (64KB on PPC).
+   +0 setsockopt(3, SOL_SOCKET, SO_SNDBUF, [2000000], 4) = 0
+
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   // send an iov of 18 elements: just becomes a linear skb
+   +0 sendmsg(4, {msg_name(...)=...,
+		  msg_iov(18)=[{..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}],
+		  msg_flags=0}, 0) = 18
+
+   +0 > P. 1:19(18) ack 1
+   +0 < . 1:1(0) ack 19 win 257
+
+   // send a zerocopy iov of 18 elements:
+   +1 sendmsg(4, {msg_name(...)=...,
+		  msg_iov(18)=[{..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}],
+		  msg_flags=0}, MSG_ZEROCOPY) = 18
+
+   // verify that it is split in one skb of 17 frags + 1 of 1 frag
+   // verify that both have the PSH bit set
+   +0 > P. 19:36(17) ack 1
+   +0 < . 1:1(0) ack 36 win 257
+
+   +0 > P. 36:37(1) ack 1
+   +0 < . 1:1(0) ack 37 win 257
+
+   +1 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
+
+   // send a zerocopy iov of 64 elements:
+   +0 sendmsg(4, {msg_name(...)=...,
+                  msg_iov(64)=[{..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1},
+			       {..., 1}, {..., 1}, {..., 1}, {..., 1}],
+                  msg_flags=0}, MSG_ZEROCOPY) = 64
+
+   // verify that it is split in skbs with 17 frags
+   +0 > P. 37:54(17) ack 1
+   +0 < . 1:1(0) ack 54 win 257
+
+   +0 > P. 54:71(17) ack 1
+   +0 < . 1:1(0) ack 71 win 257
+
+   +0 > P. 71:88(17) ack 1
+   +0 < . 1:1(0) ack 88 win 257
+
+   +0 > P. 88:101(13) ack 1
+   +0 < . 1:1(0) ack 101 win 257
+
+   +1 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=1,
+                                    ee_data=1}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/packetdrill/tcp_zerocopy_small.pkt b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_small.pkt
new file mode 100644
index 000000000000..9d5272c6b207
--- /dev/null
+++ b/tools/testing/selftests/net/packetdrill/tcp_zerocopy_small.pkt
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+// small packet zerocopy test:
+//
+// verify that SO_EE_CODE_ZEROCOPY_COPIED is set on zerocopy
+// packets of all sizes, including the smallest payload, 1B.
+
+--send_omit_free	// do not reuse send buffers with zerocopy
+
+`./defaults.sh`
+
+    0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
+   +0 setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
+   +0 setsockopt(3, SOL_SOCKET, SO_ZEROCOPY, [1], 4) = 0
+   +0 bind(3, ..., ...) = 0
+   +0 listen(3, 1) = 0
+
+   +0 < S 0:0(0) win 32792 <mss 1000,sackOK,nop,nop,nop,wscale 7>
+   +0 > S. 0:0(0) ack 1 <mss 1460,nop,nop,sackOK,nop,wscale 8>
+   +0 < . 1:1(0) ack 1 win 257
+
+   +0 accept(3, ..., ...) = 4
+
+   // send 1B
+   +0 send(4, ..., 1, MSG_ZEROCOPY) = 1
+   +0 > P. 1:2(1) ack 1
+   +0 < . 1:1(0) ack 2 win 257
+
+   +1 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=0,
+                                    ee_data=0}}
+                   ]}, MSG_ERRQUEUE) = 0
+
+   // send 1B again
+   +0 send(4, ..., 1, MSG_ZEROCOPY) = 1
+   +0 > P. 2:3(1) ack 1
+   +0 < . 1:1(0) ack 3 win 257
+
+   +1 recvmsg(4, {msg_name(...)=...,
+                  msg_iov(1)=[{...,0}],
+                  msg_flags=MSG_ERRQUEUE,
+                  msg_control=[
+                        {cmsg_level=CMSG_LEVEL_IP,
+                         cmsg_type=CMSG_TYPE_RECVERR,
+                         cmsg_data={ee_errno=0,
+                                    ee_origin=SO_EE_ORIGIN_ZEROCOPY,
+                                    ee_type=0,
+                                    ee_code=SO_EE_CODE_ZEROCOPY_COPIED,
+                                    ee_info=1,
+                                    ee_data=1}}
+                   ]}, MSG_ERRQUEUE) = 0
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
new file mode 100755
index 000000000000..a3323c21f001
--- /dev/null
+++ b/tools/testing/selftests/net/pmtu.sh
@@ -0,0 +1,2492 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check that route PMTU values match expectations, and that initial device MTU
+# values are assigned correctly
+#
+# Tests currently implemented:
+#
+# - pmtu_ipv4
+#	Set up two namespaces, A and B, with two paths between them over routers
+#	R1 and R2 (also implemented with namespaces), with different MTUs:
+#
+#	  segment a_r1    segment b_r1		a_r1: 2000
+#	.--------------R1--------------.	b_r1: 1400
+#	A                               B	a_r2: 2000
+#	'--------------R2--------------'	b_r2: 1500
+#	  segment a_r2    segment b_r2
+#
+#	Check that PMTU exceptions with the correct PMTU are created. Then
+#	decrease and increase the MTU of the local link for one of the paths,
+#	A to R1, checking that route exception PMTU changes accordingly over
+#	this path. Also check that locked exceptions are created when an ICMP
+#	message advertising a PMTU smaller than net.ipv4.route.min_pmtu is
+#	received
+#
+# - pmtu_ipv6
+#	Same as pmtu_ipv4, except for locked PMTU tests, using IPv6
+#
+# - pmtu_ipv4_dscp_icmp_exception
+#	Set up the same network topology as pmtu_ipv4, but use non-default
+#	routing table in A. A fib-rule is used to jump to this routing table
+#	based on DSCP. Send ICMPv4 packets with the expected DSCP value and
+#	verify that ECN doesn't interfere with the creation of PMTU exceptions.
+#
+# - pmtu_ipv4_dscp_udp_exception
+#	Same as pmtu_ipv4_dscp_icmp_exception, but use UDP instead of ICMP.
+#
+# - pmtu_ipv4_vxlan4_exception
+#	Set up the same network topology as pmtu_ipv4, create a VXLAN tunnel
+#	over IPv4 between A and B, routed via R1. On the link between R1 and B,
+#	set a MTU lower than the VXLAN MTU and the MTU on the link between A and
+#	R1. Send IPv4 packets, exceeding the MTU between R1 and B, over VXLAN
+#	from A to B and check that the PMTU exception is created with the right
+#	value on A
+#
+# - pmtu_ipv6_vxlan4_exception
+#	Same as pmtu_ipv4_vxlan4_exception, but send IPv6 packets from A to B
+#
+# - pmtu_ipv4_vxlan6_exception
+#	Same as pmtu_ipv4_vxlan4_exception, but use IPv6 transport from A to B
+#
+# - pmtu_ipv6_vxlan6_exception
+#	Same as pmtu_ipv4_vxlan6_exception, but send IPv6 packets from A to B
+#
+# - pmtu_ipv4_geneve4_exception
+#	Same as pmtu_ipv4_vxlan4_exception, but using a GENEVE tunnel instead of
+#	VXLAN
+#
+# - pmtu_ipv6_geneve4_exception
+#	Same as pmtu_ipv6_vxlan4_exception, but using a GENEVE tunnel instead of
+#	VXLAN
+#
+# - pmtu_ipv4_geneve6_exception
+#	Same as pmtu_ipv4_vxlan6_exception, but using a GENEVE tunnel instead of
+#	VXLAN
+#
+# - pmtu_ipv6_geneve6_exception
+#	Same as pmtu_ipv6_vxlan6_exception, but using a GENEVE tunnel instead of
+#	VXLAN
+#
+# - pmtu_ipv{4,6}_br_vxlan{4,6}_exception
+#	Set up three namespaces, A, B, and C, with routing between A and B over
+#	R1. R2 is unused in these tests. A has a veth connection to C, and is
+#	connected to B via a VXLAN endpoint, which is directly bridged to C.
+#	MTU on the B-R1 link is lower than other MTUs.
+#
+#	Check that both C and A are able to communicate with B over the VXLAN
+#	tunnel, and that PMTU exceptions with the correct values are created.
+#
+#	                  segment a_r1    segment b_r1            b_r1: 4000
+#	                .--------------R1--------------.    everything
+#	   C---veth     A                               B         else: 5000
+#	        ' bridge                                |
+#	            '---- - - - - - VXLAN - - - - - - - '
+#
+# - pmtu_ipv{4,6}_br_geneve{4,6}_exception
+#	Same as pmtu_ipv{4,6}_br_vxlan{4,6}_exception, with a GENEVE tunnel
+#	instead.
+#
+# - pmtu_ipv{4,6}_ovs_vxlan{4,6}_exception
+#	Set up two namespaces, B, and C, with routing between the init namespace
+#	and B over R1. A and R2 are unused in these tests. The init namespace
+#	has a veth connection to C, and is connected to B via a VXLAN endpoint,
+#	which is handled by Open vSwitch and bridged to C. MTU on the B-R1 link
+#	is lower than other MTUs.
+#
+#	Check that C is able to communicate with B over the VXLAN tunnel, and
+#	that PMTU exceptions with the correct values are created.
+#
+#	                  segment a_r1    segment b_r1            b_r1: 4000
+#	                .--------------R1--------------.    everything
+#	   C---veth    init                             B         else: 5000
+#	        '- ovs                                  |
+#	            '---- - - - - - VXLAN - - - - - - - '
+#
+# - pmtu_ipv{4,6}_ovs_geneve{4,6}_exception
+#	Same as pmtu_ipv{4,6}_ovs_vxlan{4,6}_exception, with a GENEVE tunnel
+#	instead.
+#
+# - pmtu_ipv{4,6}_fou{4,6}_exception
+#	Same as pmtu_ipv4_vxlan4, but using a direct IPv4/IPv6 encapsulation
+#	(FoU) over IPv4/IPv6, instead of VXLAN
+#
+# - pmtu_ipv{4,6}_fou{4,6}_exception
+#	Same as pmtu_ipv4_vxlan4, but using a generic UDP IPv4/IPv6
+#	encapsulation (GUE) over IPv4/IPv6, instead of VXLAN
+#
+# - pmtu_ipv{4,6}_ipv{4,6}_exception
+#	Same as pmtu_ipv4_vxlan4, but using a IPv4/IPv6 tunnel over IPv4/IPv6,
+#	instead of VXLAN
+#
+# - pmtu_vti4_exception
+#	Set up vti tunnel on top of veth, with xfrm states and policies, in two
+#	namespaces with matching endpoints. Check that route exception is not
+#	created if link layer MTU is not exceeded, then exceed it and check that
+#	exception is created with the expected PMTU. The approach described
+#	below for IPv6 doesn't apply here, because, on IPv4, administrative MTU
+#	changes alone won't affect PMTU
+#
+# - pmtu_vti4_udp_exception
+#       Same as pmtu_vti4_exception, but using ESP-in-UDP
+#
+# - pmtu_vti4_udp_routed_exception
+#       Set up vti tunnel on top of veth connected through routing namespace and
+#	add xfrm states and policies with ESP-in-UDP encapsulation. Check that
+#	route exception is not created if link layer MTU is not exceeded, then
+#	lower MTU on second part of routed environment and check that exception
+#	is created with the expected PMTU.
+#
+# - pmtu_vti6_exception
+#	Set up vti6 tunnel on top of veth, with xfrm states and policies, in two
+#	namespaces with matching endpoints. Check that route exception is
+#	created by exceeding link layer MTU with ping to other endpoint. Then
+#	decrease and increase MTU of tunnel, checking that route exception PMTU
+#	changes accordingly
+#
+# - pmtu_vti6_udp_exception
+#       Same as pmtu_vti6_exception, but using ESP-in-UDP
+#
+# - pmtu_vti6_udp_routed_exception
+#	Same as pmtu_vti6_udp_routed_exception but with routing between vti
+#	endpoints
+#
+# - pmtu_vti4_default_mtu
+#	Set up vti4 tunnel on top of veth, in two namespaces with matching
+#	endpoints. Check that MTU assigned to vti interface is the MTU of the
+#	lower layer (veth) minus additional lower layer headers (zero, for veth)
+#	minus IPv4 header length
+#
+# - pmtu_vti6_default_mtu
+#	Same as above, for IPv6
+#
+# - pmtu_vti4_link_add_mtu
+#	Set up vti4 interface passing MTU value at link creation, check MTU is
+#	configured, and that link is not created with invalid MTU values
+#
+# - pmtu_vti6_link_add_mtu
+#	Same as above, for IPv6
+#
+# - pmtu_vti6_link_change_mtu
+#	Set up two dummy interfaces with different MTUs, create a vti6 tunnel
+#	and check that configured MTU is used on link creation and changes, and
+#	that MTU is properly calculated instead when MTU is not configured from
+#	userspace
+#
+# - cleanup_ipv4_exception
+#	Similar to pmtu_ipv4_vxlan4_exception, but explicitly generate PMTU
+#	exceptions on multiple CPUs and check that the veth device tear-down
+# 	happens in a timely manner
+#
+# - cleanup_ipv6_exception
+#	Same as above, but use IPv6 transport from A to B
+#
+# - list_flush_ipv4_exception
+#	Using the same topology as in pmtu_ipv4, create exceptions, and check
+#	they are shown when listing exception caches, gone after flushing them
+#
+# - list_flush_ipv6_exception
+#	Using the same topology as in pmtu_ipv6, create exceptions, and check
+#	they are shown when listing exception caches, gone after flushing them
+#
+# - pmtu_ipv4_route_change
+#	Use the same topology as in pmtu_ipv4, but issue a route replacement
+#	command and delete the corresponding device afterward. This tests for
+#	proper cleanup of the PMTU exceptions by the route replacement path.
+#	Device unregistration should complete successfully
+#
+# - pmtu_ipv6_route_change
+#	Same as above but with IPv6
+#
+# - pmtu_ipv4_mp_exceptions
+#	Use the same topology as in pmtu_ipv4, but add routeable addresses
+#	on host A and B on lo reachable via both routers. Host A and B
+#	addresses have multipath routes to each other, b_r1 mtu = 1500.
+#	Check that PMTU exceptions are created for both paths.
+
+source lib.sh
+
+PAUSE_ON_FAIL=no
+VERBOSE=0
+TRACING=0
+
+# Some systems don't have a ping6 binary anymore
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+#               Name                          Description                  re-run with nh
+tests="
+	pmtu_ipv4_exception		ipv4: PMTU exceptions			1
+	pmtu_ipv6_exception		ipv6: PMTU exceptions			1
+	pmtu_ipv4_dscp_icmp_exception	ICMPv4 with DSCP and ECN: PMTU exceptions	1
+	pmtu_ipv4_dscp_udp_exception	UDPv4 with DSCP and ECN: PMTU exceptions	1
+	pmtu_ipv4_vxlan4_exception	IPv4 over vxlan4: PMTU exceptions	1
+	pmtu_ipv6_vxlan4_exception	IPv6 over vxlan4: PMTU exceptions	1
+	pmtu_ipv4_vxlan6_exception	IPv4 over vxlan6: PMTU exceptions	1
+	pmtu_ipv6_vxlan6_exception	IPv6 over vxlan6: PMTU exceptions	1
+	pmtu_ipv4_geneve4_exception	IPv4 over geneve4: PMTU exceptions	1
+	pmtu_ipv6_geneve4_exception	IPv6 over geneve4: PMTU exceptions	1
+	pmtu_ipv4_geneve6_exception	IPv4 over geneve6: PMTU exceptions	1
+	pmtu_ipv6_geneve6_exception	IPv6 over geneve6: PMTU exceptions	1
+	pmtu_ipv4_br_vxlan4_exception	IPv4, bridged vxlan4: PMTU exceptions	1
+	pmtu_ipv6_br_vxlan4_exception	IPv6, bridged vxlan4: PMTU exceptions	1
+	pmtu_ipv4_br_vxlan6_exception	IPv4, bridged vxlan6: PMTU exceptions	1
+	pmtu_ipv6_br_vxlan6_exception	IPv6, bridged vxlan6: PMTU exceptions	1
+	pmtu_ipv4_br_geneve4_exception	IPv4, bridged geneve4: PMTU exceptions	1
+	pmtu_ipv6_br_geneve4_exception	IPv6, bridged geneve4: PMTU exceptions	1
+	pmtu_ipv4_br_geneve6_exception	IPv4, bridged geneve6: PMTU exceptions	1
+	pmtu_ipv6_br_geneve6_exception	IPv6, bridged geneve6: PMTU exceptions	1
+	pmtu_ipv4_ovs_vxlan4_exception	IPv4, OVS vxlan4: PMTU exceptions	1
+	pmtu_ipv6_ovs_vxlan4_exception	IPv6, OVS vxlan4: PMTU exceptions	1
+	pmtu_ipv4_ovs_vxlan6_exception	IPv4, OVS vxlan6: PMTU exceptions	1
+	pmtu_ipv6_ovs_vxlan6_exception	IPv6, OVS vxlan6: PMTU exceptions	1
+	pmtu_ipv4_ovs_geneve4_exception	IPv4, OVS geneve4: PMTU exceptions	1
+	pmtu_ipv6_ovs_geneve4_exception	IPv6, OVS geneve4: PMTU exceptions	1
+	pmtu_ipv4_ovs_geneve6_exception	IPv4, OVS geneve6: PMTU exceptions	1
+	pmtu_ipv6_ovs_geneve6_exception	IPv6, OVS geneve6: PMTU exceptions	1
+	pmtu_ipv4_fou4_exception	IPv4 over fou4: PMTU exceptions		1
+	pmtu_ipv6_fou4_exception	IPv6 over fou4: PMTU exceptions		1
+	pmtu_ipv4_fou6_exception	IPv4 over fou6: PMTU exceptions		1
+	pmtu_ipv6_fou6_exception	IPv6 over fou6: PMTU exceptions		1
+	pmtu_ipv4_gue4_exception	IPv4 over gue4: PMTU exceptions		1
+	pmtu_ipv6_gue4_exception	IPv6 over gue4: PMTU exceptions		1
+	pmtu_ipv4_gue6_exception	IPv4 over gue6: PMTU exceptions		1
+	pmtu_ipv6_gue6_exception	IPv6 over gue6: PMTU exceptions		1
+	pmtu_ipv4_ipv4_exception	IPv4 over IPv4: PMTU exceptions		1
+	pmtu_ipv6_ipv4_exception	IPv6 over IPv4: PMTU exceptions		1
+	pmtu_ipv4_ipv6_exception	IPv4 over IPv6: PMTU exceptions		1
+	pmtu_ipv6_ipv6_exception	IPv6 over IPv6: PMTU exceptions		1
+	pmtu_vti6_exception		vti6: PMTU exceptions			0
+	pmtu_vti4_exception		vti4: PMTU exceptions			0
+	pmtu_vti6_udp_exception		vti6: PMTU exceptions (ESP-in-UDP)	0
+	pmtu_vti4_udp_exception		vti4: PMTU exceptions (ESP-in-UDP)	0
+	pmtu_vti6_udp_routed_exception	vti6: PMTU exceptions, routed (ESP-in-UDP)	0
+	pmtu_vti4_udp_routed_exception	vti4: PMTU exceptions, routed (ESP-in-UDP)	0
+	pmtu_vti4_default_mtu		vti4: default MTU assignment		0
+	pmtu_vti6_default_mtu		vti6: default MTU assignment		0
+	pmtu_vti4_link_add_mtu		vti4: MTU setting on link creation	0
+	pmtu_vti6_link_add_mtu		vti6: MTU setting on link creation	0
+	pmtu_vti6_link_change_mtu	vti6: MTU changes on link changes	0
+	cleanup_ipv4_exception		ipv4: cleanup of cached exceptions	1
+	cleanup_ipv6_exception		ipv6: cleanup of cached exceptions	1
+	list_flush_ipv4_exception	ipv4: list and flush cached exceptions	1
+	list_flush_ipv6_exception	ipv6: list and flush cached exceptions	1
+	pmtu_ipv4_route_change		ipv4: PMTU exception w/route replace	1
+	pmtu_ipv6_route_change		ipv6: PMTU exception w/route replace	1
+	pmtu_ipv4_mp_exceptions		ipv4: PMTU multipath nh exceptions	1"
+
+# Addressing and routing for tests with routers: four network segments, with
+# index SEGMENT between 1 and 4, a common prefix (PREFIX4 or PREFIX6) and an
+# identifier ID, which is 1 for hosts (A and B), 2 for routers (R1 and R2).
+# Addresses are:
+# - IPv4: PREFIX4.SEGMENT.ID (/24)
+# - IPv6: PREFIX6:SEGMENT::ID (/64)
+prefix4="10.0"
+prefix6="fc00"
+a_r1=1
+a_r2=2
+b_r1=3
+b_r2=4
+#	ns	peer	segment
+routing_addrs="
+	A	R1	${a_r1}
+	A	R2	${a_r2}
+	B	R1	${b_r1}
+	B	R2	${b_r2}
+"
+# Traffic from A to B goes through R1 by default, and through R2, if destined to
+# B's address on the b_r2 segment.
+# Traffic from B to A goes through R1.
+#	ns	destination		gateway
+routes="
+	A	default			${prefix4}.${a_r1}.2
+	A	${prefix4}.${b_r2}.1	${prefix4}.${a_r2}.2
+	B	default			${prefix4}.${b_r1}.2
+
+	A	default			${prefix6}:${a_r1}::2
+	A	${prefix6}:${b_r2}::1	${prefix6}:${a_r2}::2
+	B	default			${prefix6}:${b_r1}::2
+"
+USE_NH="no"
+#	ns	family	nh id	   destination		gateway
+nexthops="
+	A	4	41	${prefix4}.${a_r1}.2	veth_A-R1
+	A	4	42	${prefix4}.${a_r2}.2	veth_A-R2
+	B	4	41	${prefix4}.${b_r1}.2	veth_B-R1
+
+	A	6	61	${prefix6}:${a_r1}::2	veth_A-R1
+	A	6	62	${prefix6}:${a_r2}::2	veth_A-R2
+	B	6	61	${prefix6}:${b_r1}::2	veth_B-R1
+"
+
+# nexthop id correlates to id in nexthops config above
+#	ns    family	prefix			nh id
+routes_nh="
+	A	4	default			41
+	A	4	${prefix4}.${b_r2}.1	42
+	B	4	default			41
+
+	A	6	default			61
+	A	6	${prefix6}:${b_r2}::1	62
+	B	6	default			61
+"
+
+policy_mark=0x04
+rt_table=main
+
+veth4_a_addr="192.168.1.1"
+veth4_b_addr="192.168.1.2"
+veth4_c_addr="192.168.2.10"
+veth4_mask="24"
+veth6_a_addr="fd00:1::a"
+veth6_b_addr="fd00:1::b"
+veth6_c_addr="fd00:2::c"
+veth6_mask="64"
+
+tunnel4_a_addr="192.168.2.1"
+tunnel4_b_addr="192.168.2.2"
+tunnel4_mask="24"
+tunnel6_a_addr="fd00:2::a"
+tunnel6_b_addr="fd00:2::b"
+tunnel6_mask="64"
+
+host4_a_addr="192.168.99.99"
+host4_b_addr="192.168.88.88"
+
+dummy6_0_prefix="fc00:1000::"
+dummy6_1_prefix="fc00:1001::"
+dummy6_mask="64"
+
+err_buf=
+tcpdump_pids=
+nettest_pids=
+socat_pids=
+tmpoutfile=
+
+err() {
+	err_buf="${err_buf}${1}
+"
+}
+
+err_flush() {
+	echo -n "${err_buf}"
+	err_buf=
+}
+
+run_cmd() {
+	cmd="$*"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+	fi
+
+	out="$($cmd 2>&1)"
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+		echo
+	fi
+
+	return $rc
+}
+
+run_cmd_bg() {
+	cmd="$*"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: %s &\n" "${cmd}"
+	fi
+
+	$cmd 2>&1 &
+}
+
+# Find the auto-generated name for this namespace
+nsname() {
+	eval echo \$NS_$1
+}
+
+setup_fou_or_gue() {
+	outer="${1}"
+	inner="${2}"
+	encap="${3}"
+
+	if [ "${outer}" = "4" ]; then
+		modprobe fou || return $ksft_skip
+		a_addr="${prefix4}.${a_r1}.1"
+		b_addr="${prefix4}.${b_r1}.1"
+		if [ "${inner}" = "4" ]; then
+			type="ipip"
+			ipproto="4"
+		else
+			type="sit"
+			ipproto="41"
+		fi
+	else
+		modprobe fou6 || return $ksft_skip
+		a_addr="${prefix6}:${a_r1}::1"
+		b_addr="${prefix6}:${b_r1}::1"
+		if [ "${inner}" = "4" ]; then
+			type="ip6tnl"
+			mode="mode ipip6"
+			ipproto="4 -6"
+		else
+			type="ip6tnl"
+			mode="mode ip6ip6"
+			ipproto="41 -6"
+		fi
+	fi
+
+	run_cmd ${ns_a} ip fou add port 5555 ipproto ${ipproto} || return $ksft_skip
+	run_cmd ${ns_a} ip link add ${encap}_a type ${type} ${mode} local ${a_addr} remote ${b_addr} encap ${encap} encap-sport auto encap-dport 5556 || return $ksft_skip
+
+	run_cmd ${ns_b} ip fou add port 5556 ipproto ${ipproto}
+	run_cmd ${ns_b} ip link add ${encap}_b type ${type} ${mode} local ${b_addr} remote ${a_addr} encap ${encap} encap-sport auto encap-dport 5555
+
+	if [ "${inner}" = "4" ]; then
+		run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${encap}_a
+		run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${encap}_b
+	else
+		run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${encap}_a
+		run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${encap}_b
+	fi
+
+	run_cmd ${ns_a} ip link set ${encap}_a up
+	run_cmd ${ns_b} ip link set ${encap}_b up
+}
+
+setup_fou44() {
+	setup_fou_or_gue 4 4 fou
+}
+
+setup_fou46() {
+	setup_fou_or_gue 4 6 fou
+}
+
+setup_fou64() {
+	setup_fou_or_gue 6 4 fou
+}
+
+setup_fou66() {
+	setup_fou_or_gue 6 6 fou
+}
+
+setup_gue44() {
+	setup_fou_or_gue 4 4 gue
+}
+
+setup_gue46() {
+	setup_fou_or_gue 4 6 gue
+}
+
+setup_gue64() {
+	setup_fou_or_gue 6 4 gue
+}
+
+setup_gue66() {
+	setup_fou_or_gue 6 6 gue
+}
+
+setup_ipvX_over_ipvY() {
+	inner=${1}
+	outer=${2}
+
+	if [ "${outer}" -eq 4 ]; then
+		a_addr="${prefix4}.${a_r1}.1"
+		b_addr="${prefix4}.${b_r1}.1"
+		if [ "${inner}" -eq 4 ]; then
+			type="ipip"
+			mode="ipip"
+		else
+			type="sit"
+			mode="ip6ip"
+		fi
+	else
+		a_addr="${prefix6}:${a_r1}::1"
+		b_addr="${prefix6}:${b_r1}::1"
+		type="ip6tnl"
+		if [ "${inner}" -eq 4 ]; then
+			mode="ipip6"
+		else
+			mode="ip6ip6"
+		fi
+	fi
+
+	run_cmd ${ns_a} ip link add ip_a type ${type} local ${a_addr} remote ${b_addr} mode ${mode} || return $ksft_skip
+	run_cmd ${ns_b} ip link add ip_b type ${type} local ${b_addr} remote ${a_addr} mode ${mode}
+
+	run_cmd ${ns_a} ip link set ip_a up
+	run_cmd ${ns_b} ip link set ip_b up
+
+	if [ "${inner}" = "4" ]; then
+		run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ip_a
+		run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ip_b
+	else
+		run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ip_a
+		run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ip_b
+	fi
+}
+
+setup_ip4ip4() {
+	setup_ipvX_over_ipvY 4 4
+}
+
+setup_ip6ip4() {
+	setup_ipvX_over_ipvY 6 4
+}
+
+setup_ip4ip6() {
+	setup_ipvX_over_ipvY 4 6
+}
+
+setup_ip6ip6() {
+	setup_ipvX_over_ipvY 6 6
+}
+
+setup_namespaces() {
+	setup_ns NS_A NS_B NS_C NS_R1 NS_R2
+	for n in ${NS_A} ${NS_B} ${NS_C} ${NS_R1} ${NS_R2}; do
+		# Disable DAD, so that we don't have to wait to use the
+		# configured IPv6 addresses
+		ip netns exec ${n} sysctl -q net/ipv6/conf/default/accept_dad=0
+	done
+	ns_a="ip netns exec ${NS_A}"
+	ns_b="ip netns exec ${NS_B}"
+	ns_c="ip netns exec ${NS_C}"
+	ns_r1="ip netns exec ${NS_R1}"
+	ns_r2="ip netns exec ${NS_R2}"
+}
+
+setup_veth() {
+	run_cmd ${ns_a} ip link add veth_a type veth peer name veth_b || return 1
+	run_cmd ${ns_a} ip link set veth_b netns ${NS_B}
+
+	run_cmd ${ns_a} ip addr add ${veth4_a_addr}/${veth4_mask} dev veth_a
+	run_cmd ${ns_b} ip addr add ${veth4_b_addr}/${veth4_mask} dev veth_b
+
+	run_cmd ${ns_a} ip addr add ${veth6_a_addr}/${veth6_mask} dev veth_a
+	run_cmd ${ns_b} ip addr add ${veth6_b_addr}/${veth6_mask} dev veth_b
+
+	run_cmd ${ns_a} ip link set veth_a up
+	run_cmd ${ns_b} ip link set veth_b up
+}
+
+setup_vti() {
+	proto=${1}
+	veth_a_addr="${2}"
+	veth_b_addr="${3}"
+	vti_a_addr="${4}"
+	vti_b_addr="${5}"
+	vti_mask=${6}
+
+	[ ${proto} -eq 6 ] && vti_type="vti6" || vti_type="vti"
+
+	run_cmd ${ns_a} ip link add vti${proto}_a type ${vti_type} local ${veth_a_addr} remote ${veth_b_addr} key 10 || return 1
+	run_cmd ${ns_b} ip link add vti${proto}_b type ${vti_type} local ${veth_b_addr} remote ${veth_a_addr} key 10
+
+	run_cmd ${ns_a} ip addr add ${vti_a_addr}/${vti_mask} dev vti${proto}_a
+	run_cmd ${ns_b} ip addr add ${vti_b_addr}/${vti_mask} dev vti${proto}_b
+
+	run_cmd ${ns_a} ip link set vti${proto}_a up
+	run_cmd ${ns_b} ip link set vti${proto}_b up
+}
+
+setup_vti4() {
+	setup_vti 4 ${veth4_a_addr} ${veth4_b_addr} ${tunnel4_a_addr} ${tunnel4_b_addr} ${tunnel4_mask}
+}
+
+setup_vti6() {
+	setup_vti 6 ${veth6_a_addr} ${veth6_b_addr} ${tunnel6_a_addr} ${tunnel6_b_addr} ${tunnel6_mask}
+}
+
+setup_vti4routed() {
+	setup_vti 4 ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 ${tunnel4_a_addr} ${tunnel4_b_addr} ${tunnel4_mask}
+}
+
+setup_vti6routed() {
+	setup_vti 6 ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 ${tunnel6_a_addr} ${tunnel6_b_addr} ${tunnel6_mask}
+}
+
+setup_vxlan_or_geneve() {
+	type="${1}"
+	a_addr="${2}"
+	b_addr="${3}"
+	opts="${4}"
+	br_if_a="${5}"
+
+	if [ "${type}" = "vxlan" ]; then
+		opts="${opts} ttl 64 dstport 4789"
+		opts_a="local ${a_addr}"
+		opts_b="local ${b_addr}"
+	else
+		opts_a=""
+		opts_b=""
+	fi
+
+	run_cmd ${ns_a} ip link add ${type}_a type ${type} id 1 ${opts_a} remote ${b_addr} ${opts} || return 1
+	run_cmd ${ns_b} ip link add ${type}_b type ${type} id 1 ${opts_b} remote ${a_addr} ${opts}
+
+	if [ -n "${br_if_a}" ]; then
+		run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${br_if_a}
+		run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${br_if_a}
+		run_cmd ${ns_a} ip link set ${type}_a master ${br_if_a}
+	else
+		run_cmd ${ns_a} ip addr add ${tunnel4_a_addr}/${tunnel4_mask} dev ${type}_a
+		run_cmd ${ns_a} ip addr add ${tunnel6_a_addr}/${tunnel6_mask} dev ${type}_a
+	fi
+
+	run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${type}_b
+	run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${type}_b
+
+	run_cmd ${ns_a} ip link set ${type}_a up
+	run_cmd ${ns_b} ip link set ${type}_b up
+}
+
+setup_geneve4() {
+	setup_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1  "df set"
+}
+
+setup_vxlan4() {
+	setup_vxlan_or_geneve vxlan  ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1  "df set"
+}
+
+setup_geneve6() {
+	setup_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 ""
+}
+
+setup_vxlan6() {
+	setup_vxlan_or_geneve vxlan  ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 ""
+}
+
+setup_bridged_geneve4() {
+	setup_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1  "df set" "br0"
+}
+
+setup_bridged_vxlan4() {
+	setup_vxlan_or_geneve vxlan  ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1  "df set" "br0"
+}
+
+setup_bridged_geneve6() {
+	setup_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 "" "br0"
+}
+
+setup_bridged_vxlan6() {
+	setup_vxlan_or_geneve vxlan  ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 "" "br0"
+}
+
+setup_xfrm() {
+	proto=${1}
+	veth_a_addr="${2}"
+	veth_b_addr="${3}"
+	encap=${4}
+
+	run_cmd ${ns_a} ip -${proto} xfrm state add src ${veth_a_addr} dst ${veth_b_addr} spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel ${encap} || return 1
+	run_cmd ${ns_a} ip -${proto} xfrm state add src ${veth_b_addr} dst ${veth_a_addr} spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel ${encap}
+	run_cmd ${ns_a} ip -${proto} xfrm policy add dir out mark 10 tmpl src ${veth_a_addr} dst ${veth_b_addr} proto esp mode tunnel
+	run_cmd ${ns_a} ip -${proto} xfrm policy add dir in mark 10 tmpl src ${veth_b_addr} dst ${veth_a_addr} proto esp mode tunnel
+
+	run_cmd ${ns_b} ip -${proto} xfrm state add src ${veth_a_addr} dst ${veth_b_addr} spi 0x1000 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel ${encap}
+	run_cmd ${ns_b} ip -${proto} xfrm state add src ${veth_b_addr} dst ${veth_a_addr} spi 0x1001 proto esp aead 'rfc4106(gcm(aes))' 0x0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f 128 mode tunnel ${encap}
+	run_cmd ${ns_b} ip -${proto} xfrm policy add dir out mark 10 tmpl src ${veth_b_addr} dst ${veth_a_addr} proto esp mode tunnel
+	run_cmd ${ns_b} ip -${proto} xfrm policy add dir in mark 10 tmpl src ${veth_a_addr} dst ${veth_b_addr} proto esp mode tunnel
+}
+
+setup_nettest_xfrm() {
+	check_gen_prog "nettest"
+
+	[ ${1} -eq 6 ] && proto="-6" || proto=""
+	port=${2}
+
+	run_cmd_bg "${ns_a}" nettest "${proto}" -q -D -s -x -p "${port}" -t 5
+	nettest_pids="${nettest_pids} $!"
+
+	run_cmd_bg "${ns_b}" nettest "${proto}" -q -D -s -x -p "${port}" -t 5
+	nettest_pids="${nettest_pids} $!"
+}
+
+setup_xfrm4() {
+	setup_xfrm 4 ${veth4_a_addr} ${veth4_b_addr}
+}
+
+setup_xfrm6() {
+	setup_xfrm 6 ${veth6_a_addr} ${veth6_b_addr}
+}
+
+setup_xfrm4udp() {
+	setup_xfrm 4 ${veth4_a_addr} ${veth4_b_addr} "encap espinudp 4500 4500 0.0.0.0" && \
+		setup_nettest_xfrm 4 4500
+}
+
+setup_xfrm6udp() {
+	setup_xfrm 6 ${veth6_a_addr} ${veth6_b_addr} "encap espinudp 4500 4500 0.0.0.0" && \
+		setup_nettest_xfrm 6 4500
+}
+
+setup_xfrm4udprouted() {
+	setup_xfrm 4 ${prefix4}.${a_r1}.1 ${prefix4}.${b_r1}.1 "encap espinudp 4500 4500 0.0.0.0" && \
+		setup_nettest_xfrm 4 4500
+}
+
+setup_xfrm6udprouted() {
+	setup_xfrm 6 ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1 "encap espinudp 4500 4500 0.0.0.0" && \
+		setup_nettest_xfrm 6 4500
+}
+
+setup_routing_old() {
+	for i in ${routes}; do
+		[ "${ns}" = "" ]	&& ns="${i}"		&& continue
+		[ "${addr}" = "" ]	&& addr="${i}"		&& continue
+		[ "${gw}" = "" ]	&& gw="${i}"
+
+		ns_name="$(nsname ${ns})"
+
+		ip -n "${ns_name}" route add "${addr}" table "${rt_table}" via "${gw}"
+
+		ns=""; addr=""; gw=""
+	done
+}
+
+setup_routing_new() {
+	for i in ${nexthops}; do
+		[ "${ns}" = "" ]	&& ns="${i}"		&& continue
+		[ "${fam}" = "" ]	&& fam="${i}"		&& continue
+		[ "${nhid}" = "" ]	&& nhid="${i}"		&& continue
+		[ "${gw}" = "" ]	&& gw="${i}"		&& continue
+		[ "${dev}" = "" ]	&& dev="${i}"
+
+		ns_name="$(nsname ${ns})"
+
+		ip -n ${ns_name} -${fam} nexthop add id ${nhid} via ${gw} dev ${dev}
+
+		ns=""; fam=""; nhid=""; gw=""; dev=""
+
+	done
+
+	for i in ${routes_nh}; do
+		[ "${ns}" = "" ]	&& ns="${i}"		&& continue
+		[ "${fam}" = "" ]	&& fam="${i}"		&& continue
+		[ "${addr}" = "" ]	&& addr="${i}"		&& continue
+		[ "${nhid}" = "" ]	&& nhid="${i}"
+
+		ns_name="$(nsname ${ns})"
+
+		ip -n "${ns_name}" -"${fam}" route add "${addr}" table "${rt_table}" nhid "${nhid}"
+
+		ns=""; fam=""; addr=""; nhid=""
+	done
+}
+
+setup_routing() {
+	for i in ${NS_R1} ${NS_R2}; do
+		ip netns exec ${i} sysctl -q net/ipv4/ip_forward=1
+		ip netns exec ${i} sysctl -q net/ipv6/conf/all/forwarding=1
+	done
+
+	for i in ${routing_addrs}; do
+		[ "${ns}" = "" ]	&& ns="${i}"		&& continue
+		[ "${peer}" = "" ]	&& peer="${i}"		&& continue
+		[ "${segment}" = "" ]	&& segment="${i}"
+
+		ns_name="$(nsname ${ns})"
+		peer_name="$(nsname ${peer})"
+		if="veth_${ns}-${peer}"
+		ifpeer="veth_${peer}-${ns}"
+
+		# Create veth links
+		ip link add ${if} up netns ${ns_name} type veth peer name ${ifpeer} netns ${peer_name} || return 1
+		ip -n ${peer_name} link set dev ${ifpeer} up
+
+		# Add addresses
+		ip -n ${ns_name}   addr add ${prefix4}.${segment}.1/24  dev ${if}
+		ip -n ${ns_name}   addr add ${prefix6}:${segment}::1/64 dev ${if}
+
+		ip -n ${peer_name} addr add ${prefix4}.${segment}.2/24  dev ${ifpeer}
+		ip -n ${peer_name} addr add ${prefix6}:${segment}::2/64 dev ${ifpeer}
+
+		ns=""; peer=""; segment=""
+	done
+
+	if [ "$USE_NH" = "yes" ]; then
+		setup_routing_new
+	else
+		setup_routing_old
+	fi
+
+	return 0
+}
+
+setup_policy_routing() {
+	setup_routing
+
+	ip -netns "${NS_A}" -4 rule add dsfield "${policy_mark}" \
+		table "${rt_table}"
+
+	# Set the IPv4 Don't Fragment bit with tc, since socat doesn't seem to
+	# have an option do to it.
+	tc -netns "${NS_A}" qdisc replace dev veth_A-R1 root prio
+	tc -netns "${NS_A}" qdisc replace dev veth_A-R2 root prio
+	tc -netns "${NS_A}" filter add dev veth_A-R1                      \
+		protocol ipv4 flower ip_proto udp                         \
+		action pedit ex munge ip df set 0x40 pipe csum ip and udp
+	tc -netns "${NS_A}" filter add dev veth_A-R2                      \
+		protocol ipv4 flower ip_proto udp                         \
+		action pedit ex munge ip df set 0x40 pipe csum ip and udp
+}
+
+setup_bridge() {
+	run_cmd ${ns_a} ip link add br0 type bridge || return $ksft_skip
+	run_cmd ${ns_a} ip link set br0 up
+
+	run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C
+	run_cmd ${ns_c} ip link set veth_A-C netns ${NS_A}
+
+	run_cmd ${ns_a} ip link set veth_A-C up
+	run_cmd ${ns_c} ip link set veth_C-A up
+	run_cmd ${ns_c} ip addr add ${veth4_c_addr}/${veth4_mask} dev veth_C-A
+	run_cmd ${ns_c} ip addr add ${veth6_c_addr}/${veth6_mask} dev veth_C-A
+	run_cmd ${ns_a} ip link set veth_A-C master br0
+}
+
+setup_ovs_via_internal_utility() {
+	type="${1}"
+	a_addr="${2}"
+	b_addr="${3}"
+	dport="${4}"
+
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-if ovs_br0 ${type}_a -t ${type} || return 1
+
+	ports=$(python3 ./openvswitch/ovs-dpctl.py show)
+	br0_port=$(echo "$ports" | grep -E "\sovs_br0" | sed -e 's@port @@' | cut -d: -f1 | xargs)
+	type_a_port=$(echo "$ports" | grep ${type}_a | sed -e 's@port @@' | cut -d: -f1 | xargs)
+	veth_a_port=$(echo "$ports" | grep veth_A | sed -e 's@port @@' | cut -d: -f1 | xargs)
+
+	v4_a_tun="${prefix4}.${a_r1}.1"
+	v4_b_tun="${prefix4}.${b_r1}.1"
+
+	v6_a_tun="${prefix6}:${a_r1}::1"
+	v6_b_tun="${prefix6}:${b_r1}::1"
+
+	if [ "${v4_a_tun}" = "${a_addr}" ]; then
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,src=${v4_b_tun},dst=${v4_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0806),arp()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0806),arp(sip=${veth4_c_addr},tip=${tunnel4_b_addr})" \
+		    "set(tunnel(tun_id=1,dst=${v4_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+	else
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0800),ipv4()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x86dd),ipv6()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),tunnel(tun_id=1,ipv6_src=${v6_b_tun},ipv6_dst=${v6_a_tun}),in_port(${type_a_port}),eth(),eth_type(0x0806),arp()" \
+		    "${veth_a_port}"
+		run_cmd python3 ./openvswitch/ovs-dpctl.py add-flow ovs_br0 \
+		    "recirc_id(0),in_port(${veth_a_port}),eth(),eth_type(0x0806),arp(sip=${veth4_c_addr},tip=${tunnel4_b_addr})" \
+		    "set(tunnel(tun_id=1,ipv6_dst=${v6_b_tun},ttl=64,tp_dst=${dport},flags(df|csum))),${type_a_port}"
+	fi
+}
+
+setup_ovs_via_vswitchd() {
+	type="${1}"
+	b_addr="${2}"
+
+	run_cmd ovs-vsctl add-port ovs_br0 ${type}_a -- \
+		set interface ${type}_a type=${type} \
+		options:remote_ip=${b_addr} options:key=1 options:csum=true || return 1
+}
+
+setup_ovs_vxlan_or_geneve() {
+	type="${1}"
+	a_addr="${2}"
+	b_addr="${3}"
+	dport="6081"
+
+	if [ "${type}" = "vxlan" ]; then
+		dport="4789"
+		opts="${opts} ttl 64 dstport 4789"
+		opts_b="local ${b_addr}"
+	fi
+
+	setup_ovs_via_internal_utility "${type}" "${a_addr}" "${b_addr}" \
+				       "${dport}" || \
+	    setup_ovs_via_vswitchd "${type}" "${b_addr}" || return 1
+
+	run_cmd ${ns_b} ip link add ${type}_b type ${type} id 1 ${opts_b} remote ${a_addr} ${opts} || return 1
+
+	run_cmd ${ns_b} ip addr add ${tunnel4_b_addr}/${tunnel4_mask} dev ${type}_b
+	run_cmd ${ns_b} ip addr add ${tunnel6_b_addr}/${tunnel6_mask} dev ${type}_b
+
+	run_cmd ip link set ${type}_a up
+	run_cmd ${ns_b} ip link set ${type}_b up
+}
+
+setup_ovs_geneve4() {
+	setup_ovs_vxlan_or_geneve geneve ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1
+}
+
+setup_ovs_vxlan4() {
+	setup_ovs_vxlan_or_geneve vxlan  ${prefix4}.${a_r1}.1  ${prefix4}.${b_r1}.1
+}
+
+setup_ovs_geneve6() {
+	setup_ovs_vxlan_or_geneve geneve ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1
+}
+
+setup_ovs_vxlan6() {
+	setup_ovs_vxlan_or_geneve vxlan  ${prefix6}:${a_r1}::1 ${prefix6}:${b_r1}::1
+}
+
+setup_ovs_br_internal() {
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-dp ovs_br0 || \
+		return 1
+}
+
+setup_ovs_br_vswitchd() {
+	run_cmd ovs-vsctl add-br ovs_br0 || return 1
+}
+
+setup_ovs_add_if() {
+	ifname="${1}"
+	run_cmd python3 ./openvswitch/ovs-dpctl.py add-if ovs_br0 \
+		"${ifname}" || \
+		run_cmd ovs-vsctl add-port ovs_br0 "${ifname}"
+}
+
+setup_ovs_bridge() {
+	setup_ovs_br_internal || setup_ovs_br_vswitchd || return $ksft_skip
+	run_cmd ip link set ovs_br0 up
+
+	run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C
+	run_cmd ${ns_c} ip link set veth_A-C netns 1
+
+	run_cmd         ip link set veth_A-C up
+	run_cmd ${ns_c} ip link set veth_C-A up
+	run_cmd ${ns_c} ip addr add ${veth4_c_addr}/${veth4_mask} dev veth_C-A
+	run_cmd ${ns_c} ip addr add ${veth6_c_addr}/${veth6_mask} dev veth_C-A
+	setup_ovs_add_if veth_A-C
+
+	# Move veth_A-R1 to init
+	run_cmd ${ns_a} ip link set veth_A-R1 netns 1
+	run_cmd ip addr add ${prefix4}.${a_r1}.1/${veth4_mask} dev veth_A-R1
+	run_cmd ip addr add ${prefix6}:${a_r1}::1/${veth6_mask} dev veth_A-R1
+	run_cmd ip link set veth_A-R1 up
+	run_cmd ip route add ${prefix4}.${b_r1}.1 via ${prefix4}.${a_r1}.2
+	run_cmd ip route add ${prefix6}:${b_r1}::1 via ${prefix6}:${a_r1}::2
+}
+
+setup_multipath_new() {
+	# Set up host A with multipath routes to host B host4_b_addr
+	run_cmd ${ns_a} ip addr add ${host4_a_addr} dev lo
+	run_cmd ${ns_a} ip nexthop add id 401 via ${prefix4}.${a_r1}.2 dev veth_A-R1
+	run_cmd ${ns_a} ip nexthop add id 402 via ${prefix4}.${a_r2}.2 dev veth_A-R2
+	run_cmd ${ns_a} ip nexthop add id 403 group 401/402
+	run_cmd ${ns_a} ip route add ${host4_b_addr} src ${host4_a_addr} nhid 403
+
+	# Set up host B with multipath routes to host A host4_a_addr
+	run_cmd ${ns_b} ip addr add ${host4_b_addr} dev lo
+	run_cmd ${ns_b} ip nexthop add id 401 via ${prefix4}.${b_r1}.2 dev veth_B-R1
+	run_cmd ${ns_b} ip nexthop add id 402 via ${prefix4}.${b_r2}.2 dev veth_B-R2
+	run_cmd ${ns_b} ip nexthop add id 403 group 401/402
+	run_cmd ${ns_b} ip route add ${host4_a_addr} src ${host4_b_addr} nhid 403
+}
+
+setup_multipath_old() {
+	# Set up host A with multipath routes to host B host4_b_addr
+	run_cmd ${ns_a} ip addr add ${host4_a_addr} dev lo
+	run_cmd ${ns_a} ip route add ${host4_b_addr} \
+			src ${host4_a_addr} \
+			nexthop via ${prefix4}.${a_r1}.2 weight 1 \
+			nexthop via ${prefix4}.${a_r2}.2 weight 1
+
+	# Set up host B with multipath routes to host A host4_a_addr
+	run_cmd ${ns_b} ip addr add ${host4_b_addr} dev lo
+	run_cmd ${ns_b} ip route add ${host4_a_addr} \
+			src ${host4_b_addr} \
+			nexthop via ${prefix4}.${b_r1}.2 weight 1 \
+			nexthop via ${prefix4}.${b_r2}.2 weight 1
+}
+
+setup_multipath() {
+	if [ "$USE_NH" = "yes" ]; then
+		setup_multipath_new
+	else
+		setup_multipath_old
+	fi
+
+	# Set up routers with routes to dummies
+	run_cmd ${ns_r1} ip route add ${host4_a_addr} via ${prefix4}.${a_r1}.1
+	run_cmd ${ns_r2} ip route add ${host4_a_addr} via ${prefix4}.${a_r2}.1
+	run_cmd ${ns_r1} ip route add ${host4_b_addr} via ${prefix4}.${b_r1}.1
+	run_cmd ${ns_r2} ip route add ${host4_b_addr} via ${prefix4}.${b_r2}.1
+}
+
+setup() {
+	[ "$(id -u)" -ne 0 ] && echo "  need to run as root" && return $ksft_skip
+
+	for arg do
+		eval setup_${arg} || { echo "  ${arg} not supported"; return 1; }
+	done
+}
+
+trace() {
+	[ $TRACING -eq 0 ] && return
+
+	for arg do
+		[ "${ns_cmd}" = "" ] && ns_cmd="${arg}" && continue
+		${ns_cmd} tcpdump --immediate-mode -s 0 -i "${arg}" -w "${name}_${arg}.pcap" 2> /dev/null &
+		tcpdump_pids="${tcpdump_pids} $!"
+		ns_cmd=
+	done
+	sleep 1
+}
+
+cleanup_del_ovs_internal() {
+	# squelch the output of the del-if commands since it can be wordy
+	python3 ./openvswitch/ovs-dpctl.py del-if ovs_br0 -d true vxlan_a	>/dev/null	2>&1
+	python3 ./openvswitch/ovs-dpctl.py del-if ovs_br0 -d true geneve_a	>/dev/null	2>&1
+	python3 ./openvswitch/ovs-dpctl.py del-dp ovs_br0			>/dev/null	2>&1
+}
+
+cleanup_del_ovs_vswitchd() {
+	ovs-vsctl --if-exists del-port vxlan_a	2>/dev/null
+	ovs-vsctl --if-exists del-br ovs_br0	2>/dev/null
+}
+
+cleanup() {
+	for pid in ${tcpdump_pids}; do
+		kill ${pid}
+	done
+	tcpdump_pids=
+
+	for pid in ${nettest_pids}; do
+		kill ${pid}
+	done
+	nettest_pids=
+
+	for pid in ${socat_pids}; do
+		kill "${pid}"
+	done
+	socat_pids=
+
+	cleanup_all_ns
+
+	[ -e "/sys/class/net/veth_A-C"  ] && ip link del veth_A-C
+	[ -e "/sys/class/net/veth_A-R1" ] && ip link del veth_A-R1
+	[ -e "/sys/class/net/ovs_br0"   ] && cleanup_del_ovs_internal
+	[ -e "/sys/class/net/ovs_br0"   ] && cleanup_del_ovs_vswitchd
+
+	rm -f "$tmpoutfile"
+}
+
+mtu() {
+	ns_cmd="${1}"
+	dev="${2}"
+	mtu="${3}"
+
+	${ns_cmd} ip link set dev ${dev} mtu ${mtu}
+}
+
+mtu_parse() {
+	input="${1}"
+
+	next=0
+	for i in ${input}; do
+		[ ${next} -eq 1 -a "${i}" = "lock" ] && next=2 && continue
+		[ ${next} -eq 1 ] && echo "${i}" && return
+		[ ${next} -eq 2 ] && echo "lock ${i}" && return
+		[ "${i}" = "mtu" ] && next=1
+	done
+}
+
+link_get() {
+	ns_cmd="${1}"
+	name="${2}"
+
+	${ns_cmd} ip link show dev "${name}"
+}
+
+link_get_mtu() {
+	ns_cmd="${1}"
+	name="${2}"
+
+	mtu_parse "$(link_get "${ns_cmd}" ${name})"
+}
+
+route_get_dst_exception() {
+	ns_cmd="${1}"; shift
+
+	${ns_cmd} ip route get "$@"
+}
+
+route_get_dst_pmtu_from_exception() {
+	ns_cmd="${1}"; shift
+
+	mtu_parse "$(route_get_dst_exception "${ns_cmd}" "$@")"
+}
+
+check_pmtu_value() {
+	expected="${1}"
+	value="${2}"
+	event="${3}"
+
+	[ "${expected}" = "any" ] && [ -n "${value}" ] && return 0
+	[ "${value}" = "${expected}" ] && return 0
+	[ -z "${value}" ] &&    err "  PMTU exception wasn't created after ${event}" && return 1
+	[ -z "${expected}" ] && err "  PMTU exception shouldn't exist after ${event}" && return 1
+	err "  found PMTU exception with incorrect MTU ${value}, expected ${expected}, after ${event}"
+	return 1
+}
+
+test_pmtu_ipvX() {
+	family=${1}
+
+	setup namespaces routing || return $ksft_skip
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	if [ ${family} -eq 4 ]; then
+		ping=ping
+		dst1="${prefix4}.${b_r1}.1"
+		dst2="${prefix4}.${b_r2}.1"
+	else
+		ping=${ping6}
+		dst1="${prefix6}:${b_r1}::1"
+		dst2="${prefix6}:${b_r2}::1"
+	fi
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1400
+	mtu "${ns_b}"  veth_B-R1 1400
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	# Create route exceptions
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1}
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2}
+
+	# Check that exceptions have been created with the correct PMTU
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+	check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+
+	# Decrease local MTU below PMTU, check for PMTU decrease in route exception
+	mtu "${ns_a}"  veth_A-R1 1300
+	mtu "${ns_r1}" veth_R1-A 1300
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+	check_pmtu_value "1300" "${pmtu_1}" "decreasing local MTU" || return 1
+	# Second exception shouldn't be modified
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "1500" "${pmtu_2}" "changing local MTU on a link not on this path" || return 1
+
+	# Increase MTU, check for PMTU increase in route exception
+	mtu "${ns_a}"  veth_A-R1 1700
+	mtu "${ns_r1}" veth_R1-A 1700
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+	check_pmtu_value "1700" "${pmtu_1}" "increasing local MTU" || return 1
+	# Second exception shouldn't be modified
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "1500" "${pmtu_2}" "changing local MTU on a link not on this path" || return 1
+
+	# Skip PMTU locking tests for IPv6
+	[ $family -eq 6 ] && return 0
+
+	# Decrease remote MTU on path via R2, get new exception
+	mtu "${ns_r2}" veth_R2-B 400
+	mtu "${ns_b}"  veth_B-R2 400
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1400 ${dst2}
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "lock 552" "${pmtu_2}" "exceeding MTU, with MTU < min_pmtu" || return 1
+
+	# Decrease local MTU below PMTU
+	mtu "${ns_a}"  veth_A-R2 500
+	mtu "${ns_r2}" veth_R2-A 500
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "500" "${pmtu_2}" "decreasing local MTU" || return 1
+
+	# Increase local MTU
+	mtu "${ns_a}"  veth_A-R2 1500
+	mtu "${ns_r2}" veth_R2-A 1500
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "1500" "${pmtu_2}" "increasing local MTU" || return 1
+
+	# Get new exception
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1400 ${dst2}
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "lock 552" "${pmtu_2}" "exceeding MTU, with MTU < min_pmtu" || return 1
+}
+
+test_pmtu_ipv4_exception() {
+	test_pmtu_ipvX 4
+}
+
+test_pmtu_ipv6_exception() {
+	test_pmtu_ipvX 6
+}
+
+test_pmtu_ipv4_dscp_icmp_exception() {
+	rt_table=100
+
+	setup namespaces policy_routing || return $ksft_skip
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1400
+	mtu "${ns_b}"  veth_B-R1 1400
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	len=$((2000 - 20 - 8)) # Fills MTU of veth_A-R1
+
+	dst1="${prefix4}.${b_r1}.1"
+	dst2="${prefix4}.${b_r2}.1"
+
+	# Create route exceptions
+	dsfield=${policy_mark} # No ECN bit set (Not-ECT)
+	run_cmd "${ns_a}" ping -q -M want -Q "${dsfield}" -c 1 -w 1 -s "${len}" "${dst1}"
+
+	dsfield=$(printf "%#x" $((policy_mark + 0x02))) # ECN=2 (ECT(0))
+	run_cmd "${ns_a}" ping -q -M want -Q "${dsfield}" -c 1 -w 1 -s "${len}" "${dst2}"
+
+	# Check that exceptions have been created with the correct PMTU
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst1}" dsfield "${policy_mark}")"
+	check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst2}" dsfield "${policy_mark}")"
+	check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+}
+
+test_pmtu_ipv4_dscp_udp_exception() {
+	rt_table=100
+
+	if ! which socat > /dev/null 2>&1; then
+		echo "'socat' command not found; skipping tests"
+		return $ksft_skip
+	fi
+
+	setup namespaces policy_routing || return $ksft_skip
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1400
+	mtu "${ns_b}"  veth_B-R1 1400
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	len=$((2000 - 20 - 8)) # Fills MTU of veth_A-R1
+
+	dst1="${prefix4}.${b_r1}.1"
+	dst2="${prefix4}.${b_r2}.1"
+
+	# Create route exceptions
+	run_cmd_bg "${ns_b}" socat UDP-LISTEN:50000 OPEN:/dev/null,wronly=1
+	socat_pids="${socat_pids} $!"
+
+	dsfield=${policy_mark} # No ECN bit set (Not-ECT)
+	run_cmd "${ns_a}" socat OPEN:/dev/zero,rdonly=1,readbytes="${len}" \
+		UDP:"${dst1}":50000,tos="${dsfield}"
+
+	dsfield=$(printf "%#x" $((policy_mark + 0x02))) # ECN=2 (ECT(0))
+	run_cmd "${ns_a}" socat OPEN:/dev/zero,rdonly=1,readbytes="${len}" \
+		UDP:"${dst2}":50000,tos="${dsfield}"
+
+	# Check that exceptions have been created with the correct PMTU
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst1}" dsfield "${policy_mark}")"
+	check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst2}" dsfield "${policy_mark}")"
+	check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+}
+
+test_pmtu_ipvX_over_vxlanY_or_geneveY_exception() {
+	type=${1}
+	family=${2}
+	outer_family=${3}
+	ll_mtu=4000
+
+	if [ ${outer_family} -eq 4 ]; then
+		setup namespaces routing ${type}4 || return $ksft_skip
+		#                      IPv4 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 20          - 8          - 8                   - 14))
+	else
+		setup namespaces routing ${type}6 || return $ksft_skip
+		#                      IPv6 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 40          - 8          - 8                   - 14))
+	fi
+
+	trace "${ns_a}" ${type}_a    "${ns_b}"  ${type}_b \
+	      "${ns_a}" veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B
+
+	if [ ${family} -eq 4 ]; then
+		ping=ping
+		dst=${tunnel4_b_addr}
+	else
+		ping=${ping6}
+		dst=${tunnel6_b_addr}
+	fi
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}"  veth_A-R1 $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu "${ns_a}" ${type}_a $((${ll_mtu} + 1000))
+	mtu "${ns_b}" ${type}_b $((${ll_mtu} + 1000))
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+	# Check that exception was created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ${type} interface"
+}
+
+test_pmtu_ipv4_vxlan4_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan  4 4
+}
+
+test_pmtu_ipv6_vxlan4_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan  6 4
+}
+
+test_pmtu_ipv4_geneve4_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_geneve4_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_vxlan6_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan  4 6
+}
+
+test_pmtu_ipv6_vxlan6_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception vxlan  6 6
+}
+
+test_pmtu_ipv4_geneve6_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_geneve6_exception() {
+	test_pmtu_ipvX_over_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception() {
+	type=${1}
+	family=${2}
+	outer_family=${3}
+	ll_mtu=4000
+
+	if [ ${outer_family} -eq 4 ]; then
+		setup namespaces routing bridge bridged_${type}4 || return $ksft_skip
+		#                      IPv4 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 20          - 8          - 8                   - 14))
+	else
+		setup namespaces routing bridge bridged_${type}6 || return $ksft_skip
+		#                      IPv6 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 40          - 8          - 8                   - 14))
+	fi
+
+	trace "${ns_a}" ${type}_a    "${ns_b}"  ${type}_b \
+	      "${ns_a}" veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B \
+	      "${ns_a}" br0          "${ns_a}"  veth-A-C  \
+	      "${ns_c}" veth_C-A
+
+	if [ ${family} -eq 4 ]; then
+		ping=ping
+		dst=${tunnel4_b_addr}
+	else
+		ping=${ping6}
+		dst=${tunnel6_b_addr}
+	fi
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}"  veth_A-R1 $((${ll_mtu} + 1000))
+	mtu "${ns_a}"  br0       $((${ll_mtu} + 1000))
+	mtu "${ns_a}"  veth_A-C  $((${ll_mtu} + 1000))
+	mtu "${ns_c}"  veth_C-A  $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu "${ns_a}" ${type}_a $((${ll_mtu} + 1000))
+	mtu "${ns_b}" ${type}_b $((${ll_mtu} + 1000))
+
+	run_cmd ${ns_c} ${ping} -q -M want -i 0.1 -c 10 -s $((${ll_mtu} + 500)) ${dst} || return 1
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1  -s $((${ll_mtu} + 500)) ${dst} || return 1
+
+	# Check that exceptions were created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_c}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on bridged ${type} interface"
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on locally bridged ${type} interface"
+
+	tmpoutfile=$(mktemp)
+
+	# Flush Exceptions, retry with TCP
+	run_cmd ${ns_a} ip route flush cached ${dst}
+	run_cmd ${ns_b} ip route flush cached ${dst}
+	run_cmd ${ns_c} ip route flush cached ${dst}
+
+	for target in "${ns_a}" "${ns_c}" ; do
+		if [ ${family} -eq 4 ]; then
+			TCPDST=TCP:${dst}:50000
+		else
+			TCPDST="TCP:[${dst}]:50000"
+		fi
+		${ns_b} socat -T 3 -u -6 TCP-LISTEN:50000,reuseaddr STDOUT > $tmpoutfile &
+		local socat_pid=$!
+
+		wait_local_port_listen ${NS_B} 50000 tcp
+
+		dd if=/dev/zero status=none bs=1M count=1 | ${target} socat -T 3 -u STDIN $TCPDST,connect-timeout=3
+
+		wait ${socat_pid}
+		size=$(du -sb $tmpoutfile)
+		size=${size%%/tmp/*}
+
+		[ $size -ne 1048576 ] && err "File size $size mismatches expected value in locally bridged vxlan test" && return 1
+	done
+
+	rm -f "$tmpoutfile"
+
+	# Check that exceptions were created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_c}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "tcp: exceeding link layer MTU on bridged ${type} interface"
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "tcp exceeding link layer MTU on locally bridged ${type} interface"
+}
+
+test_pmtu_ipv4_br_vxlan4_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan  4 4
+}
+
+test_pmtu_ipv6_br_vxlan4_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan  6 4
+}
+
+test_pmtu_ipv4_br_geneve4_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_br_geneve4_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_br_vxlan6_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan  4 6
+}
+
+test_pmtu_ipv6_br_vxlan6_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception vxlan  6 6
+}
+
+test_pmtu_ipv4_br_geneve6_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_br_geneve6_exception() {
+	test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() {
+	type=${1}
+	family=${2}
+	outer_family=${3}
+	ll_mtu=4000
+
+	if [ "${type}" = "vxlan" ]; then
+		tun_a="vxlan_sys_4789"
+	elif [ "${type}" = "geneve" ]; then
+		tun_a="genev_sys_6081"
+	fi
+
+	if [ ${outer_family} -eq 4 ]; then
+		setup namespaces routing ovs_bridge ovs_${type}4 || return $ksft_skip
+		#                      IPv4 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 20          - 8          - 8                   - 14))
+	else
+		setup namespaces routing ovs_bridge ovs_${type}6 || return $ksft_skip
+		#                      IPv6 header   UDP header   VXLAN/GENEVE header   Ethernet header
+		exp_mtu=$((${ll_mtu} - 40          - 8          - 8                   - 14))
+	fi
+
+	trace ""        ${type}_a    "${ns_b}"  ${type}_b \
+	      ""        veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B \
+	      ""        ovs_br0      ""         veth-A_C  \
+	      "${ns_c}" veth_C-A     ""         "${tun_a}"
+
+	if [ ${family} -eq 4 ]; then
+		ping=ping
+		dst=${tunnel4_b_addr}
+	else
+		ping=${ping6}
+		dst=${tunnel6_b_addr}
+	fi
+
+	# Create route exception by exceeding link layer MTU
+	mtu ""         veth_A-R1 $((${ll_mtu} + 1000))
+	mtu ""         ovs_br0   $((${ll_mtu} + 1000))
+	mtu ""         veth_A-C  $((${ll_mtu} + 1000))
+	mtu "${ns_c}"  veth_C-A  $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu ""        ${tun_a}  $((${ll_mtu} + 1000)) 2>/dev/null || \
+		mtu ""        ${type}_a  $((${ll_mtu} + 1000)) 2>/dev/null
+	mtu "${ns_b}" ${type}_b  $((${ll_mtu} + 1000))
+
+	run_cmd ${ns_c} ${ping} -q -M want -i 0.1 -c 20 -s $((${ll_mtu} + 500)) ${dst} || return 1
+
+	# Check that exceptions were created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_c}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on Open vSwitch ${type} interface"
+}
+
+test_pmtu_ipv4_ovs_vxlan4_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan  4 4
+}
+
+test_pmtu_ipv6_ovs_vxlan4_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan  6 4
+}
+
+test_pmtu_ipv4_ovs_geneve4_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 4 4
+}
+
+test_pmtu_ipv6_ovs_geneve4_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 6 4
+}
+
+test_pmtu_ipv4_ovs_vxlan6_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan  4 6
+}
+
+test_pmtu_ipv6_ovs_vxlan6_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception vxlan  6 6
+}
+
+test_pmtu_ipv4_ovs_geneve6_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 4 6
+}
+
+test_pmtu_ipv6_ovs_geneve6_exception() {
+	test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception geneve 6 6
+}
+
+test_pmtu_ipvX_over_fouY_or_gueY() {
+	inner_family=${1}
+	outer_family=${2}
+	encap=${3}
+	ll_mtu=4000
+
+	setup namespaces routing ${encap}${outer_family}${inner_family} || return $ksft_skip
+	trace "${ns_a}" ${encap}_a   "${ns_b}"  ${encap}_b \
+	      "${ns_a}" veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B
+
+	if [ ${inner_family} -eq 4 ]; then
+		ping=ping
+		dst=${tunnel4_b_addr}
+	else
+		ping=${ping6}
+		dst=${tunnel6_b_addr}
+	fi
+
+	if [ "${encap}" = "gue" ]; then
+		encap_overhead=4
+	else
+		encap_overhead=0
+	fi
+
+	if [ ${outer_family} -eq 4 ]; then
+		#                      IPv4 header   UDP header
+		exp_mtu=$((${ll_mtu} - 20          - 8         - ${encap_overhead}))
+	else
+		#                      IPv6 header   Option 4   UDP header
+		exp_mtu=$((${ll_mtu} - 40          - 8        - 8       - ${encap_overhead}))
+	fi
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}"  veth_A-R1 $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu "${ns_a}" ${encap}_a $((${ll_mtu} + 1000))
+	mtu "${ns_b}" ${encap}_b $((${ll_mtu} + 1000))
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+	# Check that exception was created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ${encap} interface"
+}
+
+test_pmtu_ipv4_fou4_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 4 4 fou
+}
+
+test_pmtu_ipv6_fou4_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 6 4 fou
+}
+
+test_pmtu_ipv4_fou6_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 4 6 fou
+}
+
+test_pmtu_ipv6_fou6_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 6 6 fou
+}
+
+test_pmtu_ipv4_gue4_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 4 4 gue
+}
+
+test_pmtu_ipv6_gue4_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 6 4 gue
+}
+
+test_pmtu_ipv4_gue6_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 4 6 gue
+}
+
+test_pmtu_ipv6_gue6_exception() {
+	test_pmtu_ipvX_over_fouY_or_gueY 6 6 gue
+}
+
+test_pmtu_ipvX_over_ipvY_exception() {
+	inner=${1}
+	outer=${2}
+	ll_mtu=4000
+
+	setup namespaces routing ip${inner}ip${outer} || return $ksft_skip
+
+	trace "${ns_a}" ip_a         "${ns_b}"  ip_b  \
+	      "${ns_a}" veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B
+
+	if [ ${inner} -eq 4 ]; then
+		ping=ping
+		dst=${tunnel4_b_addr}
+	else
+		ping=${ping6}
+		dst=${tunnel6_b_addr}
+	fi
+
+	if [ ${outer} -eq 4 ]; then
+		#                      IPv4 header
+		exp_mtu=$((${ll_mtu} - 20))
+	else
+		#                      IPv6 header   Option 4
+		exp_mtu=$((${ll_mtu} - 40          - 8))
+	fi
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}"  veth_A-R1 $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu "${ns_a}" ip_a $((${ll_mtu} + 1000)) || return
+	mtu "${ns_b}" ip_b $((${ll_mtu} + 1000)) || return
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${dst}
+
+	# Check that exception was created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst})"
+	check_pmtu_value ${exp_mtu} "${pmtu}" "exceeding link layer MTU on ip${inner}ip${outer} interface"
+}
+
+test_pmtu_ipv4_ipv4_exception() {
+	test_pmtu_ipvX_over_ipvY_exception 4 4
+}
+
+test_pmtu_ipv6_ipv4_exception() {
+	test_pmtu_ipvX_over_ipvY_exception 6 4
+}
+
+test_pmtu_ipv4_ipv6_exception() {
+	test_pmtu_ipvX_over_ipvY_exception 4 6
+}
+
+test_pmtu_ipv6_ipv6_exception() {
+	test_pmtu_ipvX_over_ipvY_exception 6 6
+}
+
+test_pmtu_vti4_exception() {
+	setup namespaces veth vti4 xfrm4 || return $ksft_skip
+	trace "${ns_a}" veth_a    "${ns_b}" veth_b \
+	      "${ns_a}" vti4_a    "${ns_b}" vti4_b
+
+	veth_mtu=1500
+	vti_mtu=$((veth_mtu - 20))
+
+	#                                SPI   SN   IV  ICV   pad length   next header
+	esp_payload_rfc4106=$((vti_mtu - 4   - 4  - 8 - 16  - 1          - 1))
+	ping_payload=$((esp_payload_rfc4106 - 28))
+
+	mtu "${ns_a}" veth_a ${veth_mtu}
+	mtu "${ns_b}" veth_b ${veth_mtu}
+	mtu "${ns_a}" vti4_a ${vti_mtu}
+	mtu "${ns_b}" vti4_b ${vti_mtu}
+
+	# Send DF packet without exceeding link layer MTU, check that no
+	# exception is created
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s ${ping_payload} ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "" "${pmtu}" "sending packet smaller than PMTU (IP payload length ${esp_payload_rfc4106})" || return 1
+
+	# Now exceed link layer MTU by one byte, check that exception is created
+	# with the right PMTU value
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((ping_payload + 1)) ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "${esp_payload_rfc4106}" "${pmtu}" "exceeding PMTU (IP payload length $((esp_payload_rfc4106 + 1)))"
+}
+
+test_pmtu_vti6_exception() {
+	setup namespaces veth vti6 xfrm6 || return $ksft_skip
+	trace "${ns_a}" veth_a    "${ns_b}" veth_b \
+	      "${ns_a}" vti6_a    "${ns_b}" vti6_b
+	fail=0
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}" veth_a 4000
+	mtu "${ns_b}" veth_b 4000
+	mtu "${ns_a}" vti6_a 5000
+	mtu "${ns_b}" vti6_b 5000
+	run_cmd ${ns_a} ${ping6} -q -i 0.1 -w 1 -s 60000 ${tunnel6_b_addr}
+
+	# Check that exception was created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value any "${pmtu}" "creating tunnel exceeding link layer MTU" || return 1
+
+	# Decrease tunnel MTU, check for PMTU decrease in route exception
+	mtu "${ns_a}" vti6_a 3000
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "3000" "${pmtu}" "decreasing tunnel MTU" || fail=1
+
+	# Increase tunnel MTU, check for PMTU increase in route exception
+	mtu "${ns_a}" vti6_a 9000
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "9000" "${pmtu}" "increasing tunnel MTU" || fail=1
+
+	return ${fail}
+}
+
+test_pmtu_vti4_udp_exception() {
+	setup namespaces veth vti4 xfrm4udp || return $ksft_skip
+	trace "${ns_a}" veth_a    "${ns_b}" veth_b \
+	      "${ns_a}" vti4_a    "${ns_b}" vti4_b
+
+	veth_mtu=1500
+	vti_mtu=$((veth_mtu - 20))
+
+	#                                UDP   SPI   SN   IV  ICV   pad length   next header
+	esp_payload_rfc4106=$((vti_mtu - 8   - 4   - 4  - 8 - 16  - 1          - 1))
+	ping_payload=$((esp_payload_rfc4106 - 28))
+
+	mtu "${ns_a}" veth_a ${veth_mtu}
+	mtu "${ns_b}" veth_b ${veth_mtu}
+	mtu "${ns_a}" vti4_a ${vti_mtu}
+	mtu "${ns_b}" vti4_b ${vti_mtu}
+
+	# Send DF packet without exceeding link layer MTU, check that no
+	# exception is created
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s ${ping_payload} ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "" "${pmtu}" "sending packet smaller than PMTU (IP payload length ${esp_payload_rfc4106})" || return 1
+
+	# Now exceed link layer MTU by one byte, check that exception is created
+	# with the right PMTU value
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((ping_payload + 1)) ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "${esp_payload_rfc4106}" "${pmtu}" "exceeding PMTU (IP payload length $((esp_payload_rfc4106 + 1)))"
+}
+
+test_pmtu_vti6_udp_exception() {
+	setup namespaces veth vti6 xfrm6udp || return $ksft_skip
+	trace "${ns_a}" veth_a    "${ns_b}" veth_b \
+	      "${ns_a}" vti6_a    "${ns_b}" vti6_b
+	fail=0
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}" veth_a 4000
+	mtu "${ns_b}" veth_b 4000
+	mtu "${ns_a}" vti6_a 5000
+	mtu "${ns_b}" vti6_b 5000
+	run_cmd ${ns_a} ${ping6} -q -i 0.1 -w 1 -s 60000 ${tunnel6_b_addr}
+
+	# Check that exception was created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value any "${pmtu}" "creating tunnel exceeding link layer MTU" || return 1
+
+	# Decrease tunnel MTU, check for PMTU decrease in route exception
+	mtu "${ns_a}" vti6_a 3000
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "3000" "${pmtu}" "decreasing tunnel MTU" || fail=1
+
+	# Increase tunnel MTU, check for PMTU increase in route exception
+	mtu "${ns_a}" vti6_a 9000
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "9000" "${pmtu}" "increasing tunnel MTU" || fail=1
+
+	return ${fail}
+}
+
+test_pmtu_vti4_udp_routed_exception() {
+	setup namespaces routing vti4routed xfrm4udprouted || return $ksft_skip
+	trace "${ns_a}" veth_A-R1    "${ns_b}" veth_B-R1 \
+	      "${ns_a}" vti4_a       "${ns_b}" vti4_b
+
+	veth_mtu=1500
+	vti_mtu=$((veth_mtu - 20))
+
+	#                                UDP   SPI   SN   IV  ICV   pad length   next header
+	esp_payload_rfc4106=$((vti_mtu - 8   - 4   - 4  - 8 - 16  - 1          - 1))
+	ping_payload=$((esp_payload_rfc4106 - 28))
+
+        mtu "${ns_a}"  veth_A-R1 ${veth_mtu}
+        mtu "${ns_r1}" veth_R1-A ${veth_mtu}
+        mtu "${ns_b}"  veth_B-R1 ${veth_mtu}
+        mtu "${ns_r1}" veth_R1-B ${veth_mtu}
+
+	mtu "${ns_a}" vti4_a ${vti_mtu}
+	mtu "${ns_b}" vti4_b ${vti_mtu}
+
+	# Send DF packet without exceeding link layer MTU, check that no
+	# exception is created
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s ${ping_payload} ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "" "${pmtu}" "sending packet smaller than PMTU (IP payload length ${esp_payload_rfc4106})" || return 1
+
+	# Now decrease link layer MTU by 8 bytes on R1, check that exception is created
+	# with the right PMTU value
+        mtu "${ns_r1}" veth_R1-B $((veth_mtu - 8))
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((ping_payload)) ${tunnel4_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel4_b_addr})"
+	check_pmtu_value "$((esp_payload_rfc4106 - 8))" "${pmtu}" "exceeding PMTU (IP payload length $((esp_payload_rfc4106)))"
+}
+
+test_pmtu_vti6_udp_routed_exception() {
+	setup namespaces routing vti6routed xfrm6udprouted || return $ksft_skip
+	trace "${ns_a}" veth_A-R1    "${ns_b}" veth_B-R1 \
+	      "${ns_a}" vti6_a       "${ns_b}" vti6_b
+
+	veth_mtu=1500
+	vti_mtu=$((veth_mtu - 40))
+
+	#                                UDP   SPI   SN   IV  ICV   pad length   next header
+	esp_payload_rfc4106=$((vti_mtu - 8   - 4   - 4  - 8 - 16  - 1          - 1))
+	ping_payload=$((esp_payload_rfc4106 - 48))
+
+        mtu "${ns_a}"  veth_A-R1 ${veth_mtu}
+        mtu "${ns_r1}" veth_R1-A ${veth_mtu}
+        mtu "${ns_b}"  veth_B-R1 ${veth_mtu}
+        mtu "${ns_r1}" veth_R1-B ${veth_mtu}
+
+	# mtu "${ns_a}" vti6_a ${vti_mtu}
+	# mtu "${ns_b}" vti6_b ${vti_mtu}
+
+	run_cmd ${ns_a} ${ping6} -q -M want -i 0.1 -w 1 -s ${ping_payload} ${tunnel6_b_addr}
+
+	# Check that exception was not created
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "" "${pmtu}" "sending packet smaller than PMTU (IP payload length ${esp_payload_rfc4106})" || return 1
+
+	# Now decrease link layer MTU by 8 bytes on R1, check that exception is created
+	# with the right PMTU value
+        mtu "${ns_r1}" veth_R1-B $((veth_mtu - 8))
+	run_cmd ${ns_a} ${ping6} -q -M want -i 0.1 -w 1 -s $((ping_payload)) ${tunnel6_b_addr}
+	pmtu="$(route_get_dst_pmtu_from_exception "${ns_a}" ${tunnel6_b_addr})"
+	check_pmtu_value "$((esp_payload_rfc4106 - 8))" "${pmtu}" "exceeding PMTU (IP payload length $((esp_payload_rfc4106)))"
+
+}
+
+test_pmtu_vti4_default_mtu() {
+	setup namespaces veth vti4 || return $ksft_skip
+
+	# Check that MTU of vti device is MTU of veth minus IPv4 header length
+	veth_mtu="$(link_get_mtu "${ns_a}" veth_a)"
+	vti4_mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+	if [ $((veth_mtu - vti4_mtu)) -ne 20 ]; then
+		err "  vti MTU ${vti4_mtu} is not veth MTU ${veth_mtu} minus IPv4 header length"
+		return 1
+	fi
+}
+
+test_pmtu_vti6_default_mtu() {
+	setup namespaces veth vti6 || return $ksft_skip
+
+	# Check that MTU of vti device is MTU of veth minus IPv6 header length
+	veth_mtu="$(link_get_mtu "${ns_a}" veth_a)"
+	vti6_mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+	if [ $((veth_mtu - vti6_mtu)) -ne 40 ]; then
+		err "  vti MTU ${vti6_mtu} is not veth MTU ${veth_mtu} minus IPv6 header length"
+		return 1
+	fi
+}
+
+test_pmtu_vti4_link_add_mtu() {
+	setup namespaces || return $ksft_skip
+
+	run_cmd ${ns_a} ip link add vti4_a type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+	[ $? -ne 0 ] && err "  vti not supported" && return $ksft_skip
+	run_cmd ${ns_a} ip link del vti4_a
+
+	fail=0
+
+	min=68
+	max=$((65535 - 20))
+	# Check invalid values first
+	for v in $((min - 1)) $((max + 1)); do
+		run_cmd ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+		# This can fail, or MTU can be adjusted to a proper value
+		[ $? -ne 0 ] && continue
+		mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+		if [ ${mtu} -lt ${min} -o ${mtu} -gt ${max} ]; then
+			err "  vti tunnel created with invalid MTU ${mtu}"
+			fail=1
+		fi
+		run_cmd ${ns_a} ip link del vti4_a
+	done
+
+	# Now check valid values
+	for v in ${min} 1300 ${max}; do
+		run_cmd ${ns_a} ip link add vti4_a mtu ${v} type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10
+		mtu="$(link_get_mtu "${ns_a}" vti4_a)"
+		run_cmd ${ns_a} ip link del vti4_a
+		if [ "${mtu}" != "${v}" ]; then
+			err "  vti MTU ${mtu} doesn't match configured value ${v}"
+			fail=1
+		fi
+	done
+
+	return ${fail}
+}
+
+test_pmtu_vti6_link_add_mtu() {
+	setup namespaces || return $ksft_skip
+
+	run_cmd ${ns_a} ip link add vti6_a type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+	[ $? -ne 0 ] && err "  vti6 not supported" && return $ksft_skip
+	run_cmd ${ns_a} ip link del vti6_a
+
+	fail=0
+
+	min=68			# vti6 can carry IPv4 packets too
+	max=$((65535 - 40))
+	# Check invalid values first
+	for v in $((min - 1)) $((max + 1)); do
+		run_cmd ${ns_a} ip link add vti6_a mtu ${v} type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+		# This can fail, or MTU can be adjusted to a proper value
+		[ $? -ne 0 ] && continue
+		mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+		if [ ${mtu} -lt ${min} -o ${mtu} -gt ${max} ]; then
+			err "  vti6 tunnel created with invalid MTU ${v}"
+			fail=1
+		fi
+		run_cmd ${ns_a} ip link del vti6_a
+	done
+
+	# Now check valid values
+	for v in 68 1280 1300 $((65535 - 40)); do
+		run_cmd ${ns_a} ip link add vti6_a mtu ${v} type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10
+		mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+		run_cmd ${ns_a} ip link del vti6_a
+		if [ "${mtu}" != "${v}" ]; then
+			err "  vti6 MTU ${mtu} doesn't match configured value ${v}"
+			fail=1
+		fi
+	done
+
+	return ${fail}
+}
+
+test_pmtu_vti6_link_change_mtu() {
+	setup namespaces || return $ksft_skip
+
+	run_cmd ${ns_a} ip link add dummy0 mtu 1500 type dummy
+	[ $? -ne 0 ] && err "  dummy not supported" && return $ksft_skip
+	run_cmd ${ns_a} ip link add dummy1 mtu 3000 type dummy
+	run_cmd ${ns_a} ip link set dummy0 up
+	run_cmd ${ns_a} ip link set dummy1 up
+
+	run_cmd ${ns_a} ip addr add ${dummy6_0_prefix}1/${dummy6_mask} dev dummy0
+	run_cmd ${ns_a} ip addr add ${dummy6_1_prefix}1/${dummy6_mask} dev dummy1
+
+	fail=0
+
+	# Create vti6 interface bound to device, passing MTU, check it
+	run_cmd ${ns_a} ip link add vti6_a mtu 1300 type vti6 remote ${dummy6_0_prefix}2 local ${dummy6_0_prefix}1
+	mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+	if [ ${mtu} -ne 1300 ]; then
+		err "  vti6 MTU ${mtu} doesn't match configured value 1300"
+		fail=1
+	fi
+
+	# Move to another device with different MTU, without passing MTU, check
+	# MTU is adjusted
+	run_cmd ${ns_a} ip link set vti6_a type vti6 remote ${dummy6_1_prefix}2 local ${dummy6_1_prefix}1
+	mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+	if [ ${mtu} -ne $((3000 - 40)) ]; then
+		err "  vti MTU ${mtu} is not dummy MTU 3000 minus IPv6 header length"
+		fail=1
+	fi
+
+	# Move it back, passing MTU, check MTU is not overridden
+	run_cmd ${ns_a} ip link set vti6_a mtu 1280 type vti6 remote ${dummy6_0_prefix}2 local ${dummy6_0_prefix}1
+	mtu="$(link_get_mtu "${ns_a}" vti6_a)"
+	if [ ${mtu} -ne 1280 ]; then
+		err "  vti6 MTU ${mtu} doesn't match configured value 1280"
+		fail=1
+	fi
+
+	return ${fail}
+}
+
+check_command() {
+	cmd=${1}
+
+	if ! which ${cmd} > /dev/null 2>&1; then
+		err "  missing required command: '${cmd}'"
+		return 1
+	fi
+	return 0
+}
+
+check_running() {
+	pid=${1}
+	cmd=${2}
+
+	[ "$(cat /proc/${pid}/cmdline 2>/dev/null | tr -d '\0')" = "${cmd}" ]
+}
+
+test_cleanup_vxlanX_exception() {
+	outer="${1}"
+	encap="vxlan"
+	ll_mtu=4000
+
+	check_command taskset || return $ksft_skip
+	cpu_list=$(grep -m 2 processor /proc/cpuinfo | cut -d ' ' -f 2)
+
+	setup namespaces routing ${encap}${outer} || return $ksft_skip
+	trace "${ns_a}" ${encap}_a   "${ns_b}"  ${encap}_b \
+	      "${ns_a}" veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_b}" veth_B-R1    "${ns_r1}" veth_R1-B
+
+	# Create route exception by exceeding link layer MTU
+	mtu "${ns_a}"  veth_A-R1 $((${ll_mtu} + 1000))
+	mtu "${ns_r1}" veth_R1-A $((${ll_mtu} + 1000))
+	mtu "${ns_b}"  veth_B-R1 ${ll_mtu}
+	mtu "${ns_r1}" veth_R1-B ${ll_mtu}
+
+	mtu "${ns_a}" ${encap}_a $((${ll_mtu} + 1000))
+	mtu "${ns_b}" ${encap}_b $((${ll_mtu} + 1000))
+
+	# Fill exception cache for multiple CPUs (2)
+	# we can always use inner IPv4 for that
+	for cpu in ${cpu_list}; do
+		run_cmd taskset --cpu-list ${cpu} ${ns_a} ping -q -M want -i 0.1 -w 1 -s $((${ll_mtu} + 500)) ${tunnel4_b_addr}
+	done
+
+	${ns_a} ip link del dev veth_A-R1 &
+	iplink_pid=$!
+	for i in $(seq 1 20); do
+		check_running ${iplink_pid} "iplinkdeldevveth_A-R1" || return 0
+		sleep 0.1
+	done
+	err "  can't delete veth device in a timely manner, PMTU dst likely leaked"
+	return 1
+}
+
+test_cleanup_ipv6_exception() {
+	test_cleanup_vxlanX_exception 6
+}
+
+test_cleanup_ipv4_exception() {
+	test_cleanup_vxlanX_exception 4
+}
+
+run_test() {
+	(
+	tname="$1"
+	tdesc="$2"
+
+	unset IFS
+
+	# Since cleanup() relies on variables modified by this subshell, it
+	# has to run in this context.
+	trap cleanup EXIT
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "\n##########################################################################\n\n"
+	fi
+
+	eval test_${tname}
+	ret=$?
+
+	if [ $ret -eq 0 ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${tdesc}"
+	elif [ $ret -eq 1 ]; then
+		printf "TEST: %-60s  [FAIL]\n" "${tdesc}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "Pausing. Hit enter to continue"
+			read a
+		fi
+		err_flush
+		exit 1
+	elif [ $ret -eq $ksft_skip ]; then
+		printf "TEST: %-60s  [SKIP]\n" "${tdesc}"
+		err_flush
+	fi
+
+	return $ret
+	)
+	ret=$?
+	case $ret in
+		0)
+			all_skipped=false
+			[ $exitcode -eq $ksft_skip ] && exitcode=0
+		;;
+		$ksft_skip)
+			[ $all_skipped = true ] && exitcode=$ksft_skip
+		;;
+		*)
+			all_skipped=false
+			exitcode=1
+		;;
+	esac
+
+	return $ret
+}
+
+run_test_nh() {
+	tname="$1"
+	tdesc="$2"
+
+	USE_NH=yes
+	run_test "${tname}" "${tdesc} - nexthop objects"
+	USE_NH=no
+}
+
+test_list_flush_ipv4_exception() {
+	setup namespaces routing || return $ksft_skip
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	dst_prefix1="${prefix4}.${b_r1}."
+	dst2="${prefix4}.${b_r2}.1"
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1500
+	mtu "${ns_b}"  veth_B-R1 1500
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	fail=0
+
+	# Add 100 addresses for veth endpoint on B reached by default A route
+	for i in $(seq 100 199); do
+		run_cmd ${ns_b} ip addr add "${dst_prefix1}${i}" dev veth_B-R1
+	done
+
+	# Create 100 cached route exceptions for path via R1, one via R2. Note
+	# that with IPv4 we need to actually cause a route lookup that matches
+	# the exception caused by ICMP, in order to actually have a cached
+	# route, so we need to ping each destination twice
+	for i in $(seq 100 199); do
+		run_cmd ${ns_a} ping -q -M want -i 0.1 -c 2 -s 1800 "${dst_prefix1}${i}"
+	done
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -c 2 -s 1800 "${dst2}"
+
+	if [ "$(${ns_a} ip -oneline route list cache | wc -l)" -ne 101 ]; then
+		err "  can't list cached exceptions"
+		fail=1
+	fi
+
+	run_cmd ${ns_a} ip route flush cache
+	pmtu1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst_prefix}1)"
+	pmtu2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst_prefix}2)"
+	if [ -n "${pmtu1}" ] || [ -n "${pmtu2}" ] || \
+	   [ -n "$(${ns_a} ip route list cache)" ]; then
+		err "  can't flush cached exceptions"
+		fail=1
+	fi
+
+	return ${fail}
+}
+
+test_list_flush_ipv6_exception() {
+	setup namespaces routing || return $ksft_skip
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	dst_prefix1="${prefix6}:${b_r1}::"
+	dst2="${prefix6}:${b_r2}::1"
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1500
+	mtu "${ns_b}"  veth_B-R1 1500
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	fail=0
+
+	# Add 100 addresses for veth endpoint on B reached by default A route
+	for i in $(seq 100 199); do
+		run_cmd ${ns_b} ip addr add "${dst_prefix1}${i}" dev veth_B-R1
+	done
+
+	# Create 100 cached route exceptions for path via R1, one via R2
+	for i in $(seq 100 199); do
+		run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s 1800 "${dst_prefix1}${i}"
+	done
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -w 1 -s 1800 "${dst2}"
+	if [ "$(${ns_a} ip -oneline -6 route list cache | wc -l)" -ne 101 ]; then
+		err "  can't list cached exceptions"
+		fail=1
+	fi
+
+	run_cmd ${ns_a} ip -6 route flush cache
+	pmtu1="$(route_get_dst_pmtu_from_exception "${ns_a}" "${dst_prefix1}100")"
+	pmtu2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	if [ -n "${pmtu1}" ] || [ -n "${pmtu2}" ] || \
+	   [ -n "$(${ns_a} ip -6 route list cache)" ]; then
+		err "  can't flush cached exceptions"
+		fail=1
+	fi
+
+	return ${fail}
+}
+
+test_pmtu_ipvX_route_change() {
+	family=${1}
+
+	setup namespaces routing || return 2
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	if [ ${family} -eq 4 ]; then
+		ping=ping
+		dst1="${prefix4}.${b_r1}.1"
+		dst2="${prefix4}.${b_r2}.1"
+		gw="${prefix4}.${a_r1}.2"
+	else
+		ping=${ping6}
+		dst1="${prefix6}:${b_r1}::1"
+		dst2="${prefix6}:${b_r2}::1"
+		gw="${prefix6}:${a_r1}::2"
+	fi
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1400
+	mtu "${ns_b}"  veth_B-R1 1400
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	# Create route exceptions
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst1}
+	run_cmd ${ns_a} ${ping} -q -M want -i 0.1 -w 1 -s 1800 ${dst2}
+
+	# Check that exceptions have been created with the correct PMTU
+	pmtu_1="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst1})"
+	check_pmtu_value "1400" "${pmtu_1}" "exceeding MTU" || return 1
+	pmtu_2="$(route_get_dst_pmtu_from_exception "${ns_a}" ${dst2})"
+	check_pmtu_value "1500" "${pmtu_2}" "exceeding MTU" || return 1
+
+	# Replace the route from A to R1
+	run_cmd ${ns_a} ip route change default via ${gw}
+
+	# Delete the device in A
+	run_cmd ${ns_a} ip link del "veth_A-R1"
+}
+
+test_pmtu_ipv4_route_change() {
+	test_pmtu_ipvX_route_change 4
+}
+
+test_pmtu_ipv6_route_change() {
+	test_pmtu_ipvX_route_change 6
+}
+
+test_pmtu_ipv4_mp_exceptions() {
+	setup namespaces routing multipath || return $ksft_skip
+
+	trace "${ns_a}"  veth_A-R1    "${ns_r1}" veth_R1-A \
+	      "${ns_r1}" veth_R1-B    "${ns_b}"  veth_B-R1 \
+	      "${ns_a}"  veth_A-R2    "${ns_r2}" veth_R2-A \
+	      "${ns_r2}" veth_R2-B    "${ns_b}"  veth_B-R2
+
+	# Set up initial MTU values
+	mtu "${ns_a}"  veth_A-R1 2000
+	mtu "${ns_r1}" veth_R1-A 2000
+	mtu "${ns_r1}" veth_R1-B 1500
+	mtu "${ns_b}"  veth_B-R1 1500
+
+	mtu "${ns_a}"  veth_A-R2 2000
+	mtu "${ns_r2}" veth_R2-A 2000
+	mtu "${ns_r2}" veth_R2-B 1500
+	mtu "${ns_b}"  veth_B-R2 1500
+
+	# Ping and expect two nexthop exceptions for two routes
+	run_cmd ${ns_a} ping -q -M want -i 0.1 -c 1 -s 1800 "${host4_b_addr}"
+
+	# Check that exceptions have been created with the correct PMTU
+	pmtu_a_R1="$(route_get_dst_pmtu_from_exception "${ns_a}" "${host4_b_addr}" oif veth_A-R1)"
+	pmtu_a_R2="$(route_get_dst_pmtu_from_exception "${ns_a}" "${host4_b_addr}" oif veth_A-R2)"
+
+	check_pmtu_value "1500" "${pmtu_a_R1}" "exceeding MTU (veth_A-R1)" || return 1
+	check_pmtu_value "1500" "${pmtu_a_R2}" "exceeding MTU (veth_A-R2)" || return 1
+}
+
+usage() {
+	echo
+	echo "$0 [OPTIONS] [TEST]..."
+	echo "If no TEST argument is given, all tests will be run."
+	echo
+	echo "Options"
+	echo "  --trace: capture traffic to TEST_INTERFACE.pcap"
+	echo
+	echo "Available tests${tests}"
+	exit 1
+}
+
+################################################################################
+#
+exitcode=0
+desc=0
+all_skipped=true
+
+while getopts :ptv o
+do
+	case $o in
+	p) PAUSE_ON_FAIL=yes;;
+	v) VERBOSE=1;;
+	t) if which tcpdump > /dev/null 2>&1; then
+		TRACING=1
+	   else
+		echo "=== tcpdump not available, tracing disabled"
+	   fi
+	   ;;
+	*) usage;;
+	esac
+done
+shift $(($OPTIND-1))
+
+IFS="	
+"
+
+for arg do
+	# Check first that all requested tests are available before running any
+	command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; }
+done
+
+trap cleanup EXIT
+
+# start clean
+cleanup
+
+HAVE_NH=no
+ip nexthop ls >/dev/null 2>&1
+[ $? -eq 0 ] && HAVE_NH=yes
+
+name=""
+desc=""
+rerun_nh=0
+for t in ${tests}; do
+	[ "${name}" = "" ]	&& name="${t}"	&& continue
+	[ "${desc}" = "" ]	&& desc="${t}"	&& continue
+
+	if [ "${HAVE_NH}" = "yes" ]; then
+		rerun_nh="${t}"
+	fi
+
+	run_this=1
+	for arg do
+		[ "${arg}" != "${arg#--*}" ] && continue
+		[ "${arg}" = "${name}" ] && run_this=1 && break
+		run_this=0
+	done
+	if [ $run_this -eq 1 ]; then
+		run_test "${name}" "${desc}"
+		# if test was skipped no need to retry with nexthop objects
+		[ $? -eq $ksft_skip ] && rerun_nh=0
+
+		if [ "${rerun_nh}" = "1" ]; then
+			run_test_nh "${name}" "${desc}"
+		fi
+	fi
+	name=""
+	desc=""
+	rerun_nh=0
+done
+
+exit ${exitcode}
diff --git a/tools/testing/selftests/net/proc_net_pktgen.c b/tools/testing/selftests/net/proc_net_pktgen.c
new file mode 100644
index 000000000000..fab3b5c2e25d
--- /dev/null
+++ b/tools/testing/selftests/net/proc_net_pktgen.c
@@ -0,0 +1,690 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * proc_net_pktgen: kselftest for /proc/net/pktgen interface
+ *
+ * Copyright (c) 2025 Peter Seiderer <ps.report@gmx.net>
+ *
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+static const char ctrl_cmd_stop[] = "stop";
+static const char ctrl_cmd_start[] = "start";
+static const char ctrl_cmd_reset[] = "reset";
+
+static const char wrong_ctrl_cmd[] = "0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789";
+
+static const char thr_cmd_add_loopback_0[] = "add_device lo@0";
+static const char thr_cmd_rm_loopback_0[] = "rem_device_all";
+
+static const char wrong_thr_cmd[] = "forsureawrongcommand";
+static const char legacy_thr_cmd[] = "max_before_softirq";
+
+static const char wrong_dev_cmd[] = "forsurewrongcommand";
+static const char dev_cmd_min_pkt_size_0[] = "min_pkt_size";
+static const char dev_cmd_min_pkt_size_1[] = "min_pkt_size ";
+static const char dev_cmd_min_pkt_size_2[] = "min_pkt_size 0";
+static const char dev_cmd_min_pkt_size_3[] = "min_pkt_size 1";
+static const char dev_cmd_min_pkt_size_4[] = "min_pkt_size 100";
+static const char dev_cmd_min_pkt_size_5[] = "min_pkt_size=1001";
+static const char dev_cmd_min_pkt_size_6[] = "min_pkt_size =2002";
+static const char dev_cmd_min_pkt_size_7[] = "min_pkt_size= 3003";
+static const char dev_cmd_min_pkt_size_8[] = "min_pkt_size = 4004";
+static const char dev_cmd_max_pkt_size_0[] = "max_pkt_size 200";
+static const char dev_cmd_pkt_size_0[] = "pkt_size 300";
+static const char dev_cmd_imix_weights_0[] = "imix_weights 0,7 576,4 1500,1";
+static const char dev_cmd_imix_weights_1[] = "imix_weights 101,1 102,2 103,3 104,4 105,5 106,6 107,7 108,8 109,9 110,10 111,11 112,12 113,13 114,14 115,15 116,16 117,17 118,18 119,19 120,20";
+static const char dev_cmd_imix_weights_2[] = "imix_weights 100,1 102,2 103,3 104,4 105,5 106,6 107,7 108,8 109,9 110,10 111,11 112,12 113,13 114,14 115,15 116,16 117,17 118,18 119,19 120,20 121,21";
+static const char dev_cmd_imix_weights_3[] = "imix_weights";
+static const char dev_cmd_imix_weights_4[] = "imix_weights ";
+static const char dev_cmd_imix_weights_5[] = "imix_weights 0";
+static const char dev_cmd_imix_weights_6[] = "imix_weights 0,";
+static const char dev_cmd_debug_0[] = "debug 1";
+static const char dev_cmd_debug_1[] = "debug 0";
+static const char dev_cmd_frags_0[] = "frags 100";
+static const char dev_cmd_delay_0[] = "delay 100";
+static const char dev_cmd_delay_1[] = "delay 2147483647";
+static const char dev_cmd_rate_0[] = "rate 0";
+static const char dev_cmd_rate_1[] = "rate 100";
+static const char dev_cmd_ratep_0[] = "ratep 0";
+static const char dev_cmd_ratep_1[] = "ratep 200";
+static const char dev_cmd_udp_src_min_0[] = "udp_src_min 1";
+static const char dev_cmd_udp_dst_min_0[] = "udp_dst_min 2";
+static const char dev_cmd_udp_src_max_0[] = "udp_src_max 3";
+static const char dev_cmd_udp_dst_max_0[] = "udp_dst_max 4";
+static const char dev_cmd_clone_skb_0[] = "clone_skb 1";
+static const char dev_cmd_clone_skb_1[] = "clone_skb 0";
+static const char dev_cmd_count_0[] = "count 100";
+static const char dev_cmd_src_mac_count_0[] = "src_mac_count 100";
+static const char dev_cmd_dst_mac_count_0[] = "dst_mac_count 100";
+static const char dev_cmd_burst_0[] = "burst 0";
+static const char dev_cmd_node_0[] = "node 100";
+static const char dev_cmd_xmit_mode_0[] = "xmit_mode start_xmit";
+static const char dev_cmd_xmit_mode_1[] = "xmit_mode netif_receive";
+static const char dev_cmd_xmit_mode_2[] = "xmit_mode queue_xmit";
+static const char dev_cmd_xmit_mode_3[] = "xmit_mode nonsense";
+static const char dev_cmd_flag_0[] = "flag UDPCSUM";
+static const char dev_cmd_flag_1[] = "flag !UDPCSUM";
+static const char dev_cmd_flag_2[] = "flag nonsense";
+static const char dev_cmd_dst_min_0[] = "dst_min 101.102.103.104";
+static const char dev_cmd_dst_0[] = "dst 101.102.103.104";
+static const char dev_cmd_dst_max_0[] = "dst_max 201.202.203.204";
+static const char dev_cmd_dst6_0[] = "dst6 2001:db38:1234:0000:0000:0000:0000:0000";
+static const char dev_cmd_dst6_min_0[] = "dst6_min 2001:db8:1234:0000:0000:0000:0000:0000";
+static const char dev_cmd_dst6_max_0[] = "dst6_max 2001:db8:1234:0000:0000:0000:0000:0000";
+static const char dev_cmd_src6_0[] = "src6 2001:db38:1234:0000:0000:0000:0000:0000";
+static const char dev_cmd_src_min_0[] = "src_min 101.102.103.104";
+static const char dev_cmd_src_max_0[] = "src_max 201.202.203.204";
+static const char dev_cmd_dst_mac_0[] = "dst_mac 01:02:03:04:05:06";
+static const char dev_cmd_src_mac_0[] = "src_mac 11:12:13:14:15:16";
+static const char dev_cmd_clear_counters_0[] = "clear_counters";
+static const char dev_cmd_flows_0[] = "flows 100";
+static const char dev_cmd_spi_0[] = "spi 100";
+static const char dev_cmd_flowlen_0[] = "flowlen 100";
+static const char dev_cmd_queue_map_min_0[] = "queue_map_min 1";
+static const char dev_cmd_queue_map_max_0[] = "queue_map_max 2";
+static const char dev_cmd_mpls_0[] = "mpls 00000001";
+static const char dev_cmd_mpls_1[] = "mpls 00000001,000000f2";
+static const char dev_cmd_mpls_2[] = "mpls 00000f00,00000f01,00000f02,00000f03,00000f04,00000f05,00000f06,00000f07,00000f08,00000f09,00000f0a,00000f0b,00000f0c,00000f0d,00000f0e,00000f0f";
+static const char dev_cmd_mpls_3[] = "mpls 00000f00,00000f01,00000f02,00000f03,00000f04,00000f05,00000f06,00000f07,00000f08,00000f09,00000f0a,00000f0b,00000f0c,00000f0d,00000f0e,00000f0f,00000f10";
+static const char dev_cmd_vlan_id_0[] = "vlan_id 1";
+static const char dev_cmd_vlan_p_0[] = "vlan_p 1";
+static const char dev_cmd_vlan_cfi_0[] = "vlan_cfi 1";
+static const char dev_cmd_vlan_id_1[] = "vlan_id 4096";
+static const char dev_cmd_svlan_id_0[] = "svlan_id 1";
+static const char dev_cmd_svlan_p_0[] = "svlan_p 1";
+static const char dev_cmd_svlan_cfi_0[] = "svlan_cfi 1";
+static const char dev_cmd_svlan_id_1[] = "svlan_id 4096";
+static const char dev_cmd_tos_0[] = "tos 0";
+static const char dev_cmd_tos_1[] = "tos 0f";
+static const char dev_cmd_tos_2[] = "tos 0ff";
+static const char dev_cmd_traffic_class_0[] = "traffic_class f0";
+static const char dev_cmd_skb_priority_0[] = "skb_priority 999";
+
+FIXTURE(proc_net_pktgen) {
+	int ctrl_fd;
+	int thr_fd;
+	int dev_fd;
+};
+
+FIXTURE_SETUP(proc_net_pktgen) {
+	int r;
+	ssize_t len;
+
+	r = system("modprobe pktgen");
+	ASSERT_EQ(r, 0) TH_LOG("CONFIG_NET_PKTGEN not enabled, module pktgen not loaded?");
+
+	self->ctrl_fd = open("/proc/net/pktgen/pgctrl", O_RDWR);
+	ASSERT_GE(self->ctrl_fd, 0) TH_LOG("CONFIG_NET_PKTGEN not enabled, module pktgen not loaded?");
+
+	self->thr_fd = open("/proc/net/pktgen/kpktgend_0", O_RDWR);
+	ASSERT_GE(self->thr_fd, 0) TH_LOG("CONFIG_NET_PKTGEN not enabled, module pktgen not loaded?");
+
+	len = write(self->thr_fd, thr_cmd_add_loopback_0, sizeof(thr_cmd_add_loopback_0));
+	ASSERT_EQ(len, sizeof(thr_cmd_add_loopback_0)) TH_LOG("device lo@0 already registered?");
+
+	self->dev_fd = open("/proc/net/pktgen/lo@0", O_RDWR);
+	ASSERT_GE(self->dev_fd, 0) TH_LOG("device entry for lo@0 missing?");
+}
+
+FIXTURE_TEARDOWN(proc_net_pktgen) {
+	int ret;
+	ssize_t len;
+
+	ret = close(self->dev_fd);
+	EXPECT_EQ(ret, 0);
+
+	len = write(self->thr_fd, thr_cmd_rm_loopback_0, sizeof(thr_cmd_rm_loopback_0));
+	EXPECT_EQ(len, sizeof(thr_cmd_rm_loopback_0));
+
+	ret = close(self->thr_fd);
+	EXPECT_EQ(ret, 0);
+
+	ret = close(self->ctrl_fd);
+	EXPECT_EQ(ret, 0);
+}
+
+TEST_F(proc_net_pktgen, wrong_ctrl_cmd) {
+	for (int i = 0; i <= sizeof(wrong_ctrl_cmd); i++) {
+		ssize_t len;
+
+		len = write(self->ctrl_fd, wrong_ctrl_cmd, i);
+		EXPECT_EQ(len, -1);
+		EXPECT_EQ(errno, EINVAL);
+	}
+}
+
+TEST_F(proc_net_pktgen, ctrl_cmd) {
+	ssize_t len;
+
+	len = write(self->ctrl_fd, ctrl_cmd_stop, sizeof(ctrl_cmd_stop));
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_stop));
+
+	len = write(self->ctrl_fd, ctrl_cmd_stop, sizeof(ctrl_cmd_stop) - 1);
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_stop) - 1);
+
+	len = write(self->ctrl_fd, ctrl_cmd_start, sizeof(ctrl_cmd_start));
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_start));
+
+	len = write(self->ctrl_fd, ctrl_cmd_start, sizeof(ctrl_cmd_start) - 1);
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_start) - 1);
+
+	len = write(self->ctrl_fd, ctrl_cmd_reset, sizeof(ctrl_cmd_reset));
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_reset));
+
+	len = write(self->ctrl_fd, ctrl_cmd_reset, sizeof(ctrl_cmd_reset) - 1);
+	EXPECT_EQ(len,	sizeof(ctrl_cmd_reset) - 1);
+}
+
+TEST_F(proc_net_pktgen, wrong_thr_cmd) {
+	for (int i = 0; i <= sizeof(wrong_thr_cmd); i++) {
+		ssize_t len;
+
+		len = write(self->thr_fd, wrong_thr_cmd, i);
+		EXPECT_EQ(len, -1);
+		EXPECT_EQ(errno, EINVAL);
+	}
+}
+
+TEST_F(proc_net_pktgen, legacy_thr_cmd) {
+	for (int i = 0; i <= sizeof(legacy_thr_cmd); i++) {
+		ssize_t len;
+
+		len = write(self->thr_fd, legacy_thr_cmd, i);
+		if (i < (sizeof(legacy_thr_cmd) - 1)) {
+			/* incomplete command string */
+			EXPECT_EQ(len, -1);
+			EXPECT_EQ(errno, EINVAL);
+		} else {
+			/* complete command string without/with trailing '\0' */
+			EXPECT_EQ(len, i);
+		}
+	}
+}
+
+TEST_F(proc_net_pktgen, wrong_dev_cmd) {
+	for (int i = 0; i <= sizeof(wrong_dev_cmd); i++) {
+		ssize_t len;
+
+		len = write(self->dev_fd, wrong_dev_cmd, i);
+		EXPECT_EQ(len, -1);
+		EXPECT_EQ(errno, EINVAL);
+	}
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_min_pkt_size) {
+	ssize_t len;
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_0, sizeof(dev_cmd_min_pkt_size_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_0));
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_0, sizeof(dev_cmd_min_pkt_size_0) - 1);
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_0) - 1);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_1, sizeof(dev_cmd_min_pkt_size_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_1));
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_1, sizeof(dev_cmd_min_pkt_size_1) - 1);
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_1) - 1);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_2, sizeof(dev_cmd_min_pkt_size_2));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_2));
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_2, sizeof(dev_cmd_min_pkt_size_2) - 1);
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_2) - 1);
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_3, sizeof(dev_cmd_min_pkt_size_3));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_3));
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_4, sizeof(dev_cmd_min_pkt_size_4));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_4));
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_5, sizeof(dev_cmd_min_pkt_size_5));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_5));
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_6, sizeof(dev_cmd_min_pkt_size_6));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_6));
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_7, sizeof(dev_cmd_min_pkt_size_7));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_7));
+
+	len = write(self->dev_fd, dev_cmd_min_pkt_size_8, sizeof(dev_cmd_min_pkt_size_8));
+	EXPECT_EQ(len, sizeof(dev_cmd_min_pkt_size_8));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_max_pkt_size) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_max_pkt_size_0, sizeof(dev_cmd_max_pkt_size_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_max_pkt_size_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_pkt_size) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_pkt_size_0, sizeof(dev_cmd_pkt_size_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_pkt_size_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_imix_weights) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_imix_weights_0, sizeof(dev_cmd_imix_weights_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_imix_weights_0));
+
+	len = write(self->dev_fd, dev_cmd_imix_weights_1, sizeof(dev_cmd_imix_weights_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_imix_weights_1));
+
+	len = write(self->dev_fd, dev_cmd_imix_weights_2, sizeof(dev_cmd_imix_weights_2));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, E2BIG);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_3, sizeof(dev_cmd_imix_weights_3));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_3, sizeof(dev_cmd_imix_weights_3) - 1);
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_4, sizeof(dev_cmd_imix_weights_4));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_4, sizeof(dev_cmd_imix_weights_4) - 1);
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_5, sizeof(dev_cmd_imix_weights_5));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_5, sizeof(dev_cmd_imix_weights_5) - 1);
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* with trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_6, sizeof(dev_cmd_imix_weights_6));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* without trailing '\0' */
+	len = write(self->dev_fd, dev_cmd_imix_weights_6, sizeof(dev_cmd_imix_weights_6) - 1);
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_debug) {
+	ssize_t len;
+
+	/* debug on */
+	len = write(self->dev_fd, dev_cmd_debug_0, sizeof(dev_cmd_debug_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_debug_0));
+
+	/* debug off */
+	len = write(self->dev_fd, dev_cmd_debug_1, sizeof(dev_cmd_debug_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_debug_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_frags) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_frags_0, sizeof(dev_cmd_frags_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_frags_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_delay) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_delay_0, sizeof(dev_cmd_delay_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_delay_0));
+
+	len = write(self->dev_fd, dev_cmd_delay_1, sizeof(dev_cmd_delay_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_delay_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_rate) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_rate_0, sizeof(dev_cmd_rate_0));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	len = write(self->dev_fd, dev_cmd_rate_1, sizeof(dev_cmd_rate_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_rate_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_ratep) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_ratep_0, sizeof(dev_cmd_ratep_0));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	len = write(self->dev_fd, dev_cmd_ratep_1, sizeof(dev_cmd_ratep_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_ratep_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_udp_src_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_udp_src_min_0, sizeof(dev_cmd_udp_src_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_udp_src_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_udp_dst_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_udp_dst_min_0, sizeof(dev_cmd_udp_dst_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_udp_dst_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_udp_src_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_udp_src_max_0, sizeof(dev_cmd_udp_src_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_udp_src_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_udp_dst_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_udp_dst_max_0, sizeof(dev_cmd_udp_dst_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_udp_dst_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_clone_skb) {
+	ssize_t len;
+
+	/* clone_skb on (gives EOPNOTSUPP on lo device) */
+	len = write(self->dev_fd, dev_cmd_clone_skb_0, sizeof(dev_cmd_clone_skb_0));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, EOPNOTSUPP);
+
+	/* clone_skb off */
+	len = write(self->dev_fd, dev_cmd_clone_skb_1, sizeof(dev_cmd_clone_skb_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_clone_skb_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_count) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_count_0, sizeof(dev_cmd_count_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_count_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_src_mac_count) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_src_mac_count_0, sizeof(dev_cmd_src_mac_count_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_src_mac_count_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst_mac_count) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst_mac_count_0, sizeof(dev_cmd_dst_mac_count_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst_mac_count_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_burst) {
+	ssize_t len;
+
+	/* burst off */
+	len = write(self->dev_fd, dev_cmd_burst_0, sizeof(dev_cmd_burst_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_burst_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_node) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_node_0, sizeof(dev_cmd_node_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_node_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_xmit_mode) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_xmit_mode_0, sizeof(dev_cmd_xmit_mode_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_xmit_mode_0));
+
+	len = write(self->dev_fd, dev_cmd_xmit_mode_1, sizeof(dev_cmd_xmit_mode_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_xmit_mode_1));
+
+	len = write(self->dev_fd, dev_cmd_xmit_mode_2, sizeof(dev_cmd_xmit_mode_2));
+	EXPECT_EQ(len, sizeof(dev_cmd_xmit_mode_2));
+
+	len = write(self->dev_fd, dev_cmd_xmit_mode_3, sizeof(dev_cmd_xmit_mode_3));
+	EXPECT_EQ(len, sizeof(dev_cmd_xmit_mode_3));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_flag) {
+	ssize_t len;
+
+	/* flag UDPCSUM on */
+	len = write(self->dev_fd, dev_cmd_flag_0, sizeof(dev_cmd_flag_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_flag_0));
+
+	/* flag UDPCSUM off */
+	len = write(self->dev_fd, dev_cmd_flag_1, sizeof(dev_cmd_flag_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_flag_1));
+
+	/* flag invalid */
+	len = write(self->dev_fd, dev_cmd_flag_2, sizeof(dev_cmd_flag_2));
+	EXPECT_EQ(len, sizeof(dev_cmd_flag_2));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst_min_0, sizeof(dev_cmd_dst_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst_0, sizeof(dev_cmd_dst_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst_max_0, sizeof(dev_cmd_dst_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst6) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst6_0, sizeof(dev_cmd_dst6_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst6_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst6_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst6_min_0, sizeof(dev_cmd_dst6_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst6_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst6_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst6_max_0, sizeof(dev_cmd_dst6_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst6_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_src6) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_src6_0, sizeof(dev_cmd_src6_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_src6_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_src_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_src_min_0, sizeof(dev_cmd_src_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_src_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_src_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_src_max_0, sizeof(dev_cmd_src_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_src_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_dst_mac) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_dst_mac_0, sizeof(dev_cmd_dst_mac_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_dst_mac_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_src_mac) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_src_mac_0, sizeof(dev_cmd_src_mac_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_src_mac_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_clear_counters) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_clear_counters_0, sizeof(dev_cmd_clear_counters_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_clear_counters_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_flows) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_flows_0, sizeof(dev_cmd_flows_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_flows_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_spi) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_spi_0, sizeof(dev_cmd_spi_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_spi_0)) TH_LOG("CONFIG_XFRM not enabled?");
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_flowlen) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_flowlen_0, sizeof(dev_cmd_flowlen_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_flowlen_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_queue_map_min) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_queue_map_min_0, sizeof(dev_cmd_queue_map_min_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_queue_map_min_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_queue_map_max) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_queue_map_max_0, sizeof(dev_cmd_queue_map_max_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_queue_map_max_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_mpls) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_mpls_0, sizeof(dev_cmd_mpls_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_mpls_0));
+
+	len = write(self->dev_fd, dev_cmd_mpls_1, sizeof(dev_cmd_mpls_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_mpls_1));
+
+	len = write(self->dev_fd, dev_cmd_mpls_2, sizeof(dev_cmd_mpls_2));
+	EXPECT_EQ(len, sizeof(dev_cmd_mpls_2));
+
+	len = write(self->dev_fd, dev_cmd_mpls_3, sizeof(dev_cmd_mpls_3));
+	EXPECT_EQ(len, -1);
+	EXPECT_EQ(errno, E2BIG);
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_vlan_id) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_vlan_id_0, sizeof(dev_cmd_vlan_id_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_vlan_id_0));
+
+	len = write(self->dev_fd, dev_cmd_vlan_p_0, sizeof(dev_cmd_vlan_p_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_vlan_p_0));
+
+	len = write(self->dev_fd, dev_cmd_vlan_cfi_0, sizeof(dev_cmd_vlan_cfi_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_vlan_cfi_0));
+
+	len = write(self->dev_fd, dev_cmd_vlan_id_1, sizeof(dev_cmd_vlan_id_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_vlan_id_1));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_svlan_id) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_svlan_id_0, sizeof(dev_cmd_svlan_id_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_svlan_id_0));
+
+	len = write(self->dev_fd, dev_cmd_svlan_p_0, sizeof(dev_cmd_svlan_p_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_svlan_p_0));
+
+	len = write(self->dev_fd, dev_cmd_svlan_cfi_0, sizeof(dev_cmd_svlan_cfi_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_svlan_cfi_0));
+
+	len = write(self->dev_fd, dev_cmd_svlan_id_1, sizeof(dev_cmd_svlan_id_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_svlan_id_1));
+}
+
+
+TEST_F(proc_net_pktgen, dev_cmd_tos) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_tos_0, sizeof(dev_cmd_tos_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_tos_0));
+
+	len = write(self->dev_fd, dev_cmd_tos_1, sizeof(dev_cmd_tos_1));
+	EXPECT_EQ(len, sizeof(dev_cmd_tos_1));
+
+	len = write(self->dev_fd, dev_cmd_tos_2, sizeof(dev_cmd_tos_2));
+	EXPECT_EQ(len, sizeof(dev_cmd_tos_2));
+}
+
+
+TEST_F(proc_net_pktgen, dev_cmd_traffic_class) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_traffic_class_0, sizeof(dev_cmd_traffic_class_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_traffic_class_0));
+}
+
+TEST_F(proc_net_pktgen, dev_cmd_skb_priority) {
+	ssize_t len;
+
+	len = write(self->dev_fd, dev_cmd_skb_priority_0, sizeof(dev_cmd_skb_priority_0));
+	EXPECT_EQ(len, sizeof(dev_cmd_skb_priority_0));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/psock_fanout.c b/tools/testing/selftests/net/psock_fanout.c
index 08c2a36ef7a9..ab8d8b7e6cb0 100644
--- a/tools/testing/selftests/net/psock_fanout.c
+++ b/tools/testing/selftests/net/psock_fanout.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013 Google Inc.
  * Author: Willem de Bruijn (willemb@google.com)
@@ -19,24 +20,11 @@
  *   - PACKET_FANOUT_LB
  *   - PACKET_FANOUT_CPU
  *   - PACKET_FANOUT_ROLLOVER
+ *   - PACKET_FANOUT_CBPF
+ *   - PACKET_FANOUT_EBPF
  *
  * Todo:
  * - functionality: PACKET_FANOUT_FLAG_DEFRAG
- *
- * License (GPLv2):
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #define _GNU_SOURCE		/* for sched_setaffinity */
@@ -44,8 +32,11 @@
 #include <arpa/inet.h>
 #include <errno.h>
 #include <fcntl.h>
+#include <linux/unistd.h>	/* for __NR_bpf */
 #include <linux/filter.h>
+#include <linux/bpf.h>
 #include <linux/if_packet.h>
+#include <net/if.h>
 #include <net/ethernet.h>
 #include <netinet/ip.h>
 #include <netinet/udp.h>
@@ -57,29 +48,85 @@
 #include <string.h>
 #include <sys/mman.h>
 #include <sys/socket.h>
+#include <sys/ioctl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include "psock_lib.h"
+#include "kselftest.h"
 
 #define RING_NUM_FRAMES			20
 
+static uint32_t cfg_max_num_members;
+
+static void loopback_set_up_down(int state_up)
+{
+	struct ifreq ifreq = {};
+	int fd, err;
+
+	fd = socket(AF_PACKET, SOCK_RAW, 0);
+	if (fd < 0) {
+		perror("socket loopback");
+		exit(1);
+	}
+	strcpy(ifreq.ifr_name, "lo");
+	err = ioctl(fd, SIOCGIFFLAGS, &ifreq);
+	if (err) {
+		perror("SIOCGIFFLAGS");
+		exit(1);
+	}
+	if (state_up != !!(ifreq.ifr_flags & IFF_UP)) {
+		ifreq.ifr_flags ^= IFF_UP;
+		err = ioctl(fd, SIOCSIFFLAGS, &ifreq);
+		if (err) {
+			perror("SIOCSIFFLAGS");
+			exit(1);
+		}
+	}
+	close(fd);
+}
+
 /* Open a socket in a given fanout mode.
  * @return -1 if mode is bad, a valid socket otherwise */
-static int sock_fanout_open(uint16_t typeflags, int num_packets)
+static int sock_fanout_open(uint16_t typeflags, uint16_t group_id)
 {
-	int fd, val;
+	struct sockaddr_ll addr = {0};
+	struct fanout_args args;
+	int fd, val, err;
 
-	fd = socket(PF_PACKET, SOCK_DGRAM, htons(ETH_P_IP));
+	fd = socket(PF_PACKET, SOCK_RAW, 0);
 	if (fd < 0) {
 		perror("socket packet");
 		exit(1);
 	}
 
-	/* fanout group ID is always 0: tests whether old groups are deleted */
-	val = ((int) typeflags) << 16;
-	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val))) {
+	pair_udp_setfilter(fd);
+
+	addr.sll_family = AF_PACKET;
+	addr.sll_protocol = htons(ETH_P_IP);
+	addr.sll_ifindex = if_nametoindex("lo");
+	if (addr.sll_ifindex == 0) {
+		perror("if_nametoindex");
+		exit(1);
+	}
+	if (bind(fd, (void *) &addr, sizeof(addr))) {
+		perror("bind packet");
+		exit(1);
+	}
+
+	if (cfg_max_num_members) {
+		args.id = group_id;
+		args.type_flags = typeflags;
+		args.max_num_members = cfg_max_num_members;
+		err = setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &args,
+				 sizeof(args));
+	} else {
+		val = (((int) typeflags) << 16) | group_id;
+		err = setsockopt(fd, SOL_PACKET, PACKET_FANOUT, &val,
+				 sizeof(val));
+	}
+	if (err) {
 		if (close(fd)) {
 			perror("close packet");
 			exit(1);
@@ -87,10 +134,87 @@ static int sock_fanout_open(uint16_t typeflags, int num_packets)
 		return -1;
 	}
 
-	pair_udp_setfilter(fd);
 	return fd;
 }
 
+static void sock_fanout_set_cbpf(int fd)
+{
+	struct sock_filter bpf_filter[] = {
+		BPF_STMT(BPF_LD | BPF_B | BPF_ABS, 80),	      /* ldb [80] */
+		BPF_STMT(BPF_RET | BPF_A, 0),		      /* ret A */
+	};
+	struct sock_fprog bpf_prog;
+
+	bpf_prog.filter = bpf_filter;
+	bpf_prog.len = ARRAY_SIZE(bpf_filter);
+
+	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &bpf_prog,
+		       sizeof(bpf_prog))) {
+		perror("fanout data cbpf");
+		exit(1);
+	}
+}
+
+static void sock_fanout_getopts(int fd, uint16_t *typeflags, uint16_t *group_id)
+{
+	int sockopt;
+	socklen_t sockopt_len = sizeof(sockopt);
+
+	if (getsockopt(fd, SOL_PACKET, PACKET_FANOUT,
+		       &sockopt, &sockopt_len)) {
+		perror("failed to getsockopt");
+		exit(1);
+	}
+	*typeflags = sockopt >> 16;
+	*group_id = sockopt & 0xfffff;
+}
+
+static void sock_fanout_set_ebpf(int fd)
+{
+	static char log_buf[65536];
+
+	const int len_off = __builtin_offsetof(struct __sk_buff, len);
+	struct bpf_insn prog[] = {
+		{ BPF_ALU64 | BPF_MOV | BPF_X,   6, 1, 0, 0 },
+		{ BPF_LDX   | BPF_W   | BPF_MEM, 0, 6, len_off, 0 },
+		{ BPF_JMP   | BPF_JGE | BPF_K,   0, 0, 1, DATA_LEN },
+		{ BPF_JMP   | BPF_JA  | BPF_K,   0, 0, 4, 0 },
+		{ BPF_LD    | BPF_B   | BPF_ABS, 0, 0, 0, 0x50 },
+		{ BPF_JMP   | BPF_JEQ | BPF_K,   0, 0, 2, DATA_CHAR },
+		{ BPF_JMP   | BPF_JEQ | BPF_K,   0, 0, 1, DATA_CHAR_1 },
+		{ BPF_ALU   | BPF_MOV | BPF_K,   0, 0, 0, 0 },
+		{ BPF_JMP   | BPF_EXIT,          0, 0, 0, 0 }
+	};
+	union bpf_attr attr;
+	int pfd;
+
+	memset(&attr, 0, sizeof(attr));
+	attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+	attr.insns = (unsigned long) prog;
+	attr.insn_cnt = ARRAY_SIZE(prog);
+	attr.license = (unsigned long) "GPL";
+	attr.log_buf = (unsigned long) log_buf;
+	attr.log_size = sizeof(log_buf);
+	attr.log_level = 1;
+
+	pfd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+	if (pfd < 0) {
+		perror("bpf");
+		fprintf(stderr, "bpf verifier:\n%s\n", log_buf);
+		exit(1);
+	}
+
+	if (setsockopt(fd, SOL_PACKET, PACKET_FANOUT_DATA, &pfd, sizeof(pfd))) {
+		perror("fanout data ebpf");
+		exit(1);
+	}
+
+	if (close(pfd)) {
+		perror("close ebpf");
+		exit(1);
+	}
+}
+
 static char *sock_fanout_open_ring(int fd)
 {
 	struct tpacket_req req = {
@@ -115,8 +239,8 @@ static char *sock_fanout_open_ring(int fd)
 
 	ring = mmap(0, req.tp_block_size * req.tp_block_nr,
 		    PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
-	if (!ring) {
-		fprintf(stderr, "packetsock ring mmap\n");
+	if (ring == MAP_FAILED) {
+		perror("packetsock ring mmap");
 		exit(1);
 	}
 
@@ -148,13 +272,48 @@ static int sock_fanout_read(int fds[], char *rings[], const int expect[])
 
 	if ((!(ret[0] == expect[0] && ret[1] == expect[1])) &&
 	    (!(ret[0] == expect[1] && ret[1] == expect[0]))) {
-		fprintf(stderr, "ERROR: incorrect queue lengths\n");
+		fprintf(stderr, "warning: incorrect queue lengths\n");
 		return 1;
 	}
 
 	return 0;
 }
 
+/* Test that creating/joining a fanout group fails for unbound socket without
+ * a specified protocol
+ */
+static void test_unbound_fanout(void)
+{
+	int val, fd0, fd1, err;
+
+	fprintf(stderr, "test: unbound fanout\n");
+	fd0 = socket(PF_PACKET, SOCK_RAW, 0);
+	if (fd0 < 0) {
+		perror("socket packet");
+		exit(1);
+	}
+	/* Try to create a new fanout group. Should fail. */
+	val = (PACKET_FANOUT_HASH << 16) | 1;
+	err = setsockopt(fd0, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val));
+	if (!err) {
+		fprintf(stderr, "ERROR: unbound socket fanout create\n");
+		exit(1);
+	}
+	fd1 = sock_fanout_open(PACKET_FANOUT_HASH, 1);
+	if (fd1 == -1) {
+		fprintf(stderr, "ERROR: failed to open HASH socket\n");
+		exit(1);
+	}
+	/* Try to join an existing fanout group. Should fail. */
+	err = setsockopt(fd0, SOL_PACKET, PACKET_FANOUT, &val, sizeof(val));
+	if (!err) {
+		fprintf(stderr, "ERROR: unbound socket fanout join\n");
+		exit(1);
+	}
+	close(fd0);
+	close(fd1);
+}
+
 /* Test illegal mode + flag combination */
 static void test_control_single(void)
 {
@@ -168,57 +327,177 @@ static void test_control_single(void)
 }
 
 /* Test illegal group with different modes or flags */
-static void test_control_group(void)
+static void test_control_group(int toggle)
 {
 	int fds[2];
 
-	fprintf(stderr, "test: control multiple sockets\n");
+	if (toggle)
+		fprintf(stderr, "test: control multiple sockets with link down toggle\n");
+	else
+		fprintf(stderr, "test: control multiple sockets\n");
 
-	fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
+	fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
 	if (fds[0] == -1) {
 		fprintf(stderr, "ERROR: failed to open HASH socket\n");
 		exit(1);
 	}
+	if (toggle)
+		loopback_set_up_down(0);
 	if (sock_fanout_open(PACKET_FANOUT_HASH |
-			       PACKET_FANOUT_FLAG_DEFRAG, 10) != -1) {
+			       PACKET_FANOUT_FLAG_DEFRAG, 0) != -1) {
 		fprintf(stderr, "ERROR: joined group with wrong flag defrag\n");
 		exit(1);
 	}
 	if (sock_fanout_open(PACKET_FANOUT_HASH |
-			       PACKET_FANOUT_FLAG_ROLLOVER, 10) != -1) {
+			       PACKET_FANOUT_FLAG_ROLLOVER, 0) != -1) {
 		fprintf(stderr, "ERROR: joined group with wrong flag ro\n");
 		exit(1);
 	}
-	if (sock_fanout_open(PACKET_FANOUT_CPU, 10) != -1) {
+	if (sock_fanout_open(PACKET_FANOUT_CPU, 0) != -1) {
 		fprintf(stderr, "ERROR: joined group with wrong mode\n");
 		exit(1);
 	}
-	fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 20);
+	fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
 	if (fds[1] == -1) {
 		fprintf(stderr, "ERROR: failed to join group\n");
 		exit(1);
 	}
+	if (toggle)
+		loopback_set_up_down(1);
 	if (close(fds[1]) || close(fds[0])) {
 		fprintf(stderr, "ERROR: closing sockets\n");
 		exit(1);
 	}
 }
 
+/* Test illegal max_num_members values */
+static void test_control_group_max_num_members(void)
+{
+	int fds[3];
+
+	fprintf(stderr, "test: control multiple sockets, max_num_members\n");
+
+	/* expected failure on greater than PACKET_FANOUT_MAX */
+	cfg_max_num_members = (1 << 16) + 1;
+	if (sock_fanout_open(PACKET_FANOUT_HASH, 0) != -1) {
+		fprintf(stderr, "ERROR: max_num_members > PACKET_FANOUT_MAX\n");
+		exit(1);
+	}
+
+	cfg_max_num_members = 256;
+	fds[0] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
+	if (fds[0] == -1) {
+		fprintf(stderr, "ERROR: failed open\n");
+		exit(1);
+	}
+
+	/* expected failure on joining group with different max_num_members */
+	cfg_max_num_members = 257;
+	if (sock_fanout_open(PACKET_FANOUT_HASH, 0) != -1) {
+		fprintf(stderr, "ERROR: set different max_num_members\n");
+		exit(1);
+	}
+
+	/* success on joining group with same max_num_members */
+	cfg_max_num_members = 256;
+	fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
+	if (fds[1] == -1) {
+		fprintf(stderr, "ERROR: failed to join group\n");
+		exit(1);
+	}
+
+	/* success on joining group with max_num_members unspecified */
+	cfg_max_num_members = 0;
+	fds[2] = sock_fanout_open(PACKET_FANOUT_HASH, 0);
+	if (fds[2] == -1) {
+		fprintf(stderr, "ERROR: failed to join group\n");
+		exit(1);
+	}
+
+	if (close(fds[2]) || close(fds[1]) || close(fds[0])) {
+		fprintf(stderr, "ERROR: closing sockets\n");
+		exit(1);
+	}
+}
+
+/* Test creating a unique fanout group ids */
+static void test_unique_fanout_group_ids(void)
+{
+	int fds[3];
+	uint16_t typeflags, first_group_id, second_group_id;
+
+	fprintf(stderr, "test: unique ids\n");
+
+	fds[0] = sock_fanout_open(PACKET_FANOUT_HASH |
+				  PACKET_FANOUT_FLAG_UNIQUEID, 0);
+	if (fds[0] == -1) {
+		fprintf(stderr, "ERROR: failed to create a unique id group.\n");
+		exit(1);
+	}
+
+	sock_fanout_getopts(fds[0], &typeflags, &first_group_id);
+	if (typeflags != PACKET_FANOUT_HASH) {
+		fprintf(stderr, "ERROR: unexpected typeflags %x\n", typeflags);
+		exit(1);
+	}
+
+	if (sock_fanout_open(PACKET_FANOUT_CPU, first_group_id) != -1) {
+		fprintf(stderr, "ERROR: joined group with wrong type.\n");
+		exit(1);
+	}
+
+	fds[1] = sock_fanout_open(PACKET_FANOUT_HASH, first_group_id);
+	if (fds[1] == -1) {
+		fprintf(stderr,
+			"ERROR: failed to join previously created group.\n");
+		exit(1);
+	}
+
+	fds[2] = sock_fanout_open(PACKET_FANOUT_HASH |
+				  PACKET_FANOUT_FLAG_UNIQUEID, 0);
+	if (fds[2] == -1) {
+		fprintf(stderr,
+			"ERROR: failed to create a second unique id group.\n");
+		exit(1);
+	}
+
+	sock_fanout_getopts(fds[2], &typeflags, &second_group_id);
+	if (sock_fanout_open(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_UNIQUEID,
+			     second_group_id) != -1) {
+		fprintf(stderr,
+			"ERROR: specified a group id when requesting unique id\n");
+		exit(1);
+	}
+
+	if (close(fds[0]) || close(fds[1]) || close(fds[2])) {
+		fprintf(stderr, "ERROR: closing sockets\n");
+		exit(1);
+	}
+}
+
 static int test_datapath(uint16_t typeflags, int port_off,
 			 const int expect1[], const int expect2[])
 {
 	const int expect0[] = { 0, 0 };
 	char *rings[2];
+	uint8_t type = typeflags & 0xFF;
 	int fds[2], fds_udp[2][2], ret;
 
-	fprintf(stderr, "test: datapath 0x%hx\n", typeflags);
+	fprintf(stderr, "\ntest: datapath 0x%hx ports %hu,%hu\n",
+		typeflags, (uint16_t)PORT_BASE,
+		(uint16_t)(PORT_BASE + port_off));
 
-	fds[0] = sock_fanout_open(typeflags, 20);
-	fds[1] = sock_fanout_open(typeflags, 20);
+	fds[0] = sock_fanout_open(typeflags, 0);
+	fds[1] = sock_fanout_open(typeflags, 0);
 	if (fds[0] == -1 || fds[1] == -1) {
 		fprintf(stderr, "ERROR: failed open\n");
 		exit(1);
 	}
+	if (type == PACKET_FANOUT_CBPF)
+		sock_fanout_set_cbpf(fds[0]);
+	else if (type == PACKET_FANOUT_EBPF)
+		sock_fanout_set_ebpf(fds[0]);
+
 	rings[0] = sock_fanout_open_ring(fds[0]);
 	rings[1] = sock_fanout_open_ring(fds[1]);
 	pair_udp_open(fds_udp[0], PORT_BASE);
@@ -227,11 +506,11 @@ static int test_datapath(uint16_t typeflags, int port_off,
 
 	/* Send data, but not enough to overflow a queue */
 	pair_udp_send(fds_udp[0], 15);
-	pair_udp_send(fds_udp[1], 5);
+	pair_udp_send_char(fds_udp[1], 5, DATA_CHAR_1);
 	ret = sock_fanout_read(fds, rings, expect1);
 
 	/* Send more data, overflow the queue */
-	pair_udp_send(fds_udp[0], 15);
+	pair_udp_send_char(fds_udp[0], 15, DATA_CHAR_1);
 	/* TODO: ensure consistent order between expect1 and expect2 */
 	ret |= sock_fanout_read(fds, rings, expect2);
 
@@ -275,18 +554,30 @@ int main(int argc, char **argv)
 	const int expect_rb[2][2]	= { { 15, 5 },  { 20, 15 } };
 	const int expect_cpu0[2][2]	= { { 20, 0 },  { 20, 0 } };
 	const int expect_cpu1[2][2]	= { { 0, 20 },  { 0, 20 } };
-	int port_off = 2, tries = 5, ret;
+	const int expect_bpf[2][2]	= { { 15, 5 },  { 15, 20 } };
+	const int expect_uniqueid[2][2] = { { 20, 20},  { 20, 20 } };
+	int port_off = 2, tries = 20, ret;
 
+	test_unbound_fanout();
 	test_control_single();
-	test_control_group();
+	test_control_group(0);
+	test_control_group(1);
+	test_control_group_max_num_members();
+	test_unique_fanout_group_ids();
 
+	/* PACKET_FANOUT_MAX */
+	cfg_max_num_members = 1 << 16;
 	/* find a set of ports that do not collide onto the same socket */
 	ret = test_datapath(PACKET_FANOUT_HASH, port_off,
 			    expect_hash[0], expect_hash[1]);
-	while (ret && tries--) {
+	while (ret) {
 		fprintf(stderr, "info: trying alternate ports (%d)\n", tries);
 		ret = test_datapath(PACKET_FANOUT_HASH, ++port_off,
 				    expect_hash[0], expect_hash[1]);
+		if (!--tries) {
+			fprintf(stderr, "too many collisions\n");
+			return 1;
+		}
 	}
 
 	ret |= test_datapath(PACKET_FANOUT_HASH | PACKET_FANOUT_FLAG_ROLLOVER,
@@ -296,6 +587,11 @@ int main(int argc, char **argv)
 	ret |= test_datapath(PACKET_FANOUT_ROLLOVER,
 			     port_off, expect_rb[0], expect_rb[1]);
 
+	ret |= test_datapath(PACKET_FANOUT_CBPF,
+			     port_off, expect_bpf[0], expect_bpf[1]);
+	ret |= test_datapath(PACKET_FANOUT_EBPF,
+			     port_off, expect_bpf[0], expect_bpf[1]);
+
 	set_cpuaffinity(0);
 	ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
 			     expect_cpu0[0], expect_cpu0[1]);
@@ -304,6 +600,9 @@ int main(int argc, char **argv)
 		ret |= test_datapath(PACKET_FANOUT_CPU, port_off,
 				     expect_cpu1[0], expect_cpu1[1]);
 
+	ret |= test_datapath(PACKET_FANOUT_FLAG_UNIQUEID, port_off,
+			     expect_uniqueid[0], expect_uniqueid[1]);
+
 	if (ret)
 		return 1;
 
diff --git a/tools/testing/selftests/net/psock_lib.h b/tools/testing/selftests/net/psock_lib.h
index 37da54ac85a9..067265b0a554 100644
--- a/tools/testing/selftests/net/psock_lib.h
+++ b/tools/testing/selftests/net/psock_lib.h
@@ -1,22 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2013 Google Inc.
  * Author: Willem de Bruijn <willemb@google.com>
  *         Daniel Borkmann <dborkman@redhat.com>
- *
- * License (GPLv2):
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
 #ifndef PSOCK_LIB_H
@@ -28,31 +14,55 @@
 #include <arpa/inet.h>
 #include <unistd.h>
 
+#include "kselftest.h"
+
 #define DATA_LEN			100
 #define DATA_CHAR			'a'
+#define DATA_CHAR_1			'b'
 
 #define PORT_BASE			8000
 
-#ifndef __maybe_unused
-# define __maybe_unused		__attribute__ ((__unused__))
-#endif
-
 static __maybe_unused void pair_udp_setfilter(int fd)
 {
+	/* the filter below checks for all of the following conditions that
+	 * are based on the contents of create_payload()
+	 *  ether type 0x800 and
+	 *  ip proto udp     and
+	 *  skb->len == DATA_LEN and
+	 *  udp[38] == 'a' or udp[38] == 'b'
+	 * It can be generated from the following bpf_asm input:
+	 *	ldh [12]
+	 *	jne #0x800, drop	; ETH_P_IP
+	 *	ldb [23]
+	 *	jneq #17, drop		; IPPROTO_UDP
+	 *	ld len			; ld skb->len
+	 *	jlt #100, drop		; DATA_LEN
+	 *	ldb [80]
+	 *	jeq #97, pass		; DATA_CHAR
+	 *	jne #98, drop		; DATA_CHAR_1
+	 *	pass:
+	 *	  ret #-1
+	 *	drop:
+	 *	  ret #0
+	 */
 	struct sock_filter bpf_filter[] = {
-		{ 0x80, 0, 0, 0x00000000 },  /* LD  pktlen		      */
-		{ 0x35, 0, 5, DATA_LEN   },  /* JGE DATA_LEN  [f goto nomatch]*/
-		{ 0x30, 0, 0, 0x00000050 },  /* LD  ip[80]		      */
-		{ 0x15, 0, 3, DATA_CHAR  },  /* JEQ DATA_CHAR [f goto nomatch]*/
-		{ 0x30, 0, 0, 0x00000051 },  /* LD  ip[81]		      */
-		{ 0x15, 0, 1, DATA_CHAR  },  /* JEQ DATA_CHAR [f goto nomatch]*/
-		{ 0x06, 0, 0, 0x00000060 },  /* RET match	              */
-		{ 0x06, 0, 0, 0x00000000 },  /* RET no match		      */
+		{ 0x28,  0,  0, 0x0000000c },
+		{ 0x15,  0,  8, 0x00000800 },
+		{ 0x30,  0,  0, 0x00000017 },
+		{ 0x15,  0,  6, 0x00000011 },
+		{ 0x80,  0,  0, 0000000000 },
+		{ 0x35,  0,  4, 0x00000064 },
+		{ 0x30,  0,  0, 0x00000050 },
+		{ 0x15,  1,  0, 0x00000061 },
+		{ 0x15,  0,  1, 0x00000062 },
+		{ 0x06,  0,  0, 0xffffffff },
+		{ 0x06,  0,  0, 0000000000 },
 	};
 	struct sock_fprog bpf_prog;
 
 	bpf_prog.filter = bpf_filter;
-	bpf_prog.len = sizeof(bpf_filter) / sizeof(struct sock_filter);
+	bpf_prog.len = ARRAY_SIZE(bpf_filter);
+
 	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &bpf_prog,
 		       sizeof(bpf_prog))) {
 		perror("setsockopt SO_ATTACH_FILTER");
@@ -96,11 +106,11 @@ static __maybe_unused void pair_udp_open(int fds[], uint16_t port)
 	}
 }
 
-static __maybe_unused void pair_udp_send(int fds[], int num)
+static __maybe_unused void pair_udp_send_char(int fds[], int num, char payload)
 {
 	char buf[DATA_LEN], rbuf[DATA_LEN];
 
-	memset(buf, DATA_CHAR, sizeof(buf));
+	memset(buf, payload, sizeof(buf));
 	while (num--) {
 		/* Should really handle EINTR and EAGAIN */
 		if (write(fds[0], buf, sizeof(buf)) != sizeof(buf)) {
@@ -118,6 +128,11 @@ static __maybe_unused void pair_udp_send(int fds[], int num)
 	}
 }
 
+static __maybe_unused void pair_udp_send(int fds[], int num)
+{
+	return pair_udp_send_char(fds, num, DATA_CHAR);
+}
+
 static __maybe_unused void pair_udp_close(int fds[])
 {
 	close(fds[0]);
diff --git a/tools/testing/selftests/net/psock_snd.c b/tools/testing/selftests/net/psock_snd.c
new file mode 100644
index 000000000000..edf1e6f80d41
--- /dev/null
+++ b/tools/testing/selftests/net/psock_snd.c
@@ -0,0 +1,399 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/if_packet.h>
+#include <linux/if_vlan.h>
+#include <linux/virtio_net.h>
+#include <net/if.h>
+#include <net/ethernet.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "psock_lib.h"
+
+static bool	cfg_use_bind;
+static bool	cfg_use_csum_off;
+static bool	cfg_use_csum_off_bad;
+static bool	cfg_use_dgram;
+static bool	cfg_use_gso;
+static bool	cfg_use_qdisc_bypass;
+static bool	cfg_use_vlan;
+static bool	cfg_use_vnet;
+
+static char	*cfg_ifname = "lo";
+static int	cfg_mtu	= 1500;
+static int	cfg_payload_len = DATA_LEN;
+static int	cfg_truncate_len = INT_MAX;
+static uint16_t	cfg_port = 8000;
+
+/* test sending up to max mtu + 1 */
+#define TEST_SZ	(sizeof(struct virtio_net_hdr) + ETH_HLEN + ETH_MAX_MTU + 1)
+
+static char tbuf[TEST_SZ], rbuf[TEST_SZ];
+
+static unsigned long add_csum_hword(const uint16_t *start, int num_u16)
+{
+	unsigned long sum = 0;
+	int i;
+
+	for (i = 0; i < num_u16; i++)
+		sum += start[i];
+
+	return sum;
+}
+
+static uint16_t build_ip_csum(const uint16_t *start, int num_u16,
+			      unsigned long sum)
+{
+	sum += add_csum_hword(start, num_u16);
+
+	while (sum >> 16)
+		sum = (sum & 0xffff) + (sum >> 16);
+
+	return ~sum;
+}
+
+static int build_vnet_header(void *header)
+{
+	struct virtio_net_hdr *vh = header;
+
+	vh->hdr_len = ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr);
+
+	if (cfg_use_csum_off) {
+		vh->flags |= VIRTIO_NET_HDR_F_NEEDS_CSUM;
+		vh->csum_start = ETH_HLEN + sizeof(struct iphdr);
+		vh->csum_offset = __builtin_offsetof(struct udphdr, check);
+
+		/* position check field exactly one byte beyond end of packet */
+		if (cfg_use_csum_off_bad)
+			vh->csum_start += sizeof(struct udphdr) + cfg_payload_len -
+					  vh->csum_offset - 1;
+	}
+
+	if (cfg_use_gso) {
+		vh->gso_type = VIRTIO_NET_HDR_GSO_UDP;
+		vh->gso_size = cfg_mtu - sizeof(struct iphdr);
+	}
+
+	return sizeof(*vh);
+}
+
+static int build_eth_header(void *header)
+{
+	struct ethhdr *eth = header;
+
+	if (cfg_use_vlan) {
+		uint16_t *tag = header + ETH_HLEN;
+
+		eth->h_proto = htons(ETH_P_8021Q);
+		tag[1] = htons(ETH_P_IP);
+		return ETH_HLEN + 4;
+	}
+
+	eth->h_proto = htons(ETH_P_IP);
+	return ETH_HLEN;
+}
+
+static int build_ipv4_header(void *header, int payload_len)
+{
+	struct iphdr *iph = header;
+
+	iph->ihl = 5;
+	iph->version = 4;
+	iph->ttl = 8;
+	iph->tot_len = htons(sizeof(*iph) + sizeof(struct udphdr) + payload_len);
+	iph->id = htons(1337);
+	iph->protocol = IPPROTO_UDP;
+	iph->saddr = htonl((172 << 24) | (17 << 16) | 2);
+	iph->daddr = htonl((172 << 24) | (17 << 16) | 1);
+	iph->check = build_ip_csum((void *) iph, iph->ihl << 1, 0);
+
+	return iph->ihl << 2;
+}
+
+static int build_udp_header(void *header, int payload_len)
+{
+	const int alen = sizeof(uint32_t);
+	struct udphdr *udph = header;
+	int len = sizeof(*udph) + payload_len;
+
+	udph->source = htons(9);
+	udph->dest = htons(cfg_port);
+	udph->len = htons(len);
+
+	if (cfg_use_csum_off)
+		udph->check = build_ip_csum(header - (2 * alen), alen,
+					    htons(IPPROTO_UDP) + udph->len);
+	else
+		udph->check = 0;
+
+	return sizeof(*udph);
+}
+
+static int build_packet(int payload_len)
+{
+	int off = 0;
+
+	off += build_vnet_header(tbuf);
+	off += build_eth_header(tbuf + off);
+	off += build_ipv4_header(tbuf + off, payload_len);
+	off += build_udp_header(tbuf + off, payload_len);
+
+	if (off + payload_len > sizeof(tbuf))
+		error(1, 0, "payload length exceeds max");
+
+	memset(tbuf + off, DATA_CHAR, payload_len);
+
+	return off + payload_len;
+}
+
+static void do_bind(int fd)
+{
+	struct sockaddr_ll laddr = {0};
+
+	laddr.sll_family = AF_PACKET;
+	laddr.sll_protocol = htons(ETH_P_IP);
+	laddr.sll_ifindex = if_nametoindex(cfg_ifname);
+	if (!laddr.sll_ifindex)
+		error(1, errno, "if_nametoindex");
+
+	if (bind(fd, (void *)&laddr, sizeof(laddr)))
+		error(1, errno, "bind");
+}
+
+static void do_send(int fd, char *buf, int len)
+{
+	int ret;
+
+	if (!cfg_use_vnet) {
+		buf += sizeof(struct virtio_net_hdr);
+		len -= sizeof(struct virtio_net_hdr);
+	}
+	if (cfg_use_dgram) {
+		buf += ETH_HLEN;
+		len -= ETH_HLEN;
+	}
+
+	if (cfg_use_bind) {
+		ret = write(fd, buf, len);
+	} else {
+		struct sockaddr_ll laddr = {0};
+
+		laddr.sll_protocol = htons(ETH_P_IP);
+		laddr.sll_ifindex = if_nametoindex(cfg_ifname);
+		if (!laddr.sll_ifindex)
+			error(1, errno, "if_nametoindex");
+
+		ret = sendto(fd, buf, len, 0, (void *)&laddr, sizeof(laddr));
+	}
+
+	if (ret == -1)
+		error(1, errno, "write");
+	if (ret != len)
+		error(1, 0, "write: %u %u", ret, len);
+
+	fprintf(stderr, "tx: %u\n", ret);
+}
+
+static int do_tx(void)
+{
+	const int one = 1;
+	int fd, len;
+
+	fd = socket(PF_PACKET, cfg_use_dgram ? SOCK_DGRAM : SOCK_RAW, 0);
+	if (fd == -1)
+		error(1, errno, "socket t");
+
+	if (cfg_use_bind)
+		do_bind(fd);
+
+	if (cfg_use_qdisc_bypass &&
+	    setsockopt(fd, SOL_PACKET, PACKET_QDISC_BYPASS, &one, sizeof(one)))
+		error(1, errno, "setsockopt qdisc bypass");
+
+	if (cfg_use_vnet &&
+	    setsockopt(fd, SOL_PACKET, PACKET_VNET_HDR, &one, sizeof(one)))
+		error(1, errno, "setsockopt vnet");
+
+	len = build_packet(cfg_payload_len);
+
+	if (cfg_truncate_len < len)
+		len = cfg_truncate_len;
+
+	do_send(fd, tbuf, len);
+
+	if (close(fd))
+		error(1, errno, "close t");
+
+	return len;
+}
+
+static int setup_rx(void)
+{
+	struct timeval tv = { .tv_usec = 100 * 1000 };
+	struct sockaddr_in raddr = {0};
+	int fd;
+
+	fd = socket(PF_INET, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket r");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcv timeout");
+
+	raddr.sin_family = AF_INET;
+	raddr.sin_port = htons(cfg_port);
+	raddr.sin_addr.s_addr = htonl(INADDR_ANY);
+
+	if (bind(fd, (void *)&raddr, sizeof(raddr)))
+		error(1, errno, "bind r");
+
+	return fd;
+}
+
+static void do_rx(int fd, int expected_len, char *expected)
+{
+	int ret;
+
+	ret = recv(fd, rbuf, sizeof(rbuf), 0);
+	if (ret == -1)
+		error(1, errno, "recv");
+	if (ret != expected_len)
+		error(1, 0, "recv: %u != %u", ret, expected_len);
+
+	if (memcmp(rbuf, expected, ret))
+		error(1, 0, "recv: data mismatch");
+
+	fprintf(stderr, "rx: %u\n", ret);
+}
+
+static int setup_sniffer(void)
+{
+	struct timeval tv = { .tv_usec = 100 * 1000 };
+	int fd;
+
+	fd = socket(PF_PACKET, SOCK_RAW, 0);
+	if (fd == -1)
+		error(1, errno, "socket p");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcv timeout");
+
+	pair_udp_setfilter(fd);
+	do_bind(fd);
+
+	return fd;
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "bcCdgl:qt:vV")) != -1) {
+		switch (c) {
+		case 'b':
+			cfg_use_bind = true;
+			break;
+		case 'c':
+			cfg_use_csum_off = true;
+			break;
+		case 'C':
+			cfg_use_csum_off_bad = true;
+			break;
+		case 'd':
+			cfg_use_dgram = true;
+			break;
+		case 'g':
+			cfg_use_gso = true;
+			break;
+		case 'l':
+			cfg_payload_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'q':
+			cfg_use_qdisc_bypass = true;
+			break;
+		case 't':
+			cfg_truncate_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'v':
+			cfg_use_vnet = true;
+			break;
+		case 'V':
+			cfg_use_vlan = true;
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+
+	if (cfg_use_vlan && cfg_use_dgram)
+		error(1, 0, "option vlan (-V) conflicts with dgram (-d)");
+
+	if (cfg_use_csum_off && !cfg_use_vnet)
+		error(1, 0, "option csum offload (-c) requires vnet (-v)");
+
+	if (cfg_use_csum_off_bad && !cfg_use_csum_off)
+		error(1, 0, "option csum bad (-C) requires csum offload (-c)");
+
+	if (cfg_use_gso && !cfg_use_csum_off)
+		error(1, 0, "option gso (-g) requires csum offload (-c)");
+}
+
+static void run_test(void)
+{
+	int fdr, fds, total_len;
+
+	fdr = setup_rx();
+	fds = setup_sniffer();
+
+	total_len = do_tx();
+
+	/* BPF filter accepts only this length, vlan changes MAC */
+	if (cfg_payload_len == DATA_LEN && !cfg_use_vlan)
+		do_rx(fds, total_len - sizeof(struct virtio_net_hdr),
+		      tbuf + sizeof(struct virtio_net_hdr));
+
+	do_rx(fdr, cfg_payload_len, tbuf + total_len - cfg_payload_len);
+
+	if (close(fds))
+		error(1, errno, "close s");
+	if (close(fdr))
+		error(1, errno, "close r");
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+
+	if (system("ip link set dev lo mtu 1500"))
+		error(1, errno, "ip link set mtu");
+	if (system("ip addr add dev lo 172.17.0.1/24"))
+		error(1, errno, "ip addr add");
+	if (system("sysctl -w net.ipv4.conf.lo.accept_local=1"))
+		error(1, errno, "sysctl lo.accept_local");
+
+	run_test();
+
+	fprintf(stderr, "OK\n\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/psock_snd.sh b/tools/testing/selftests/net/psock_snd.sh
new file mode 100755
index 000000000000..1cbfeb5052ec
--- /dev/null
+++ b/tools/testing/selftests/net/psock_snd.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of packet socket send regression tests
+
+set -e
+
+readonly mtu=1500
+readonly iphlen=20
+readonly udphlen=8
+
+readonly vnet_hlen=10
+readonly eth_hlen=14
+
+readonly mss="$((${mtu} - ${iphlen} - ${udphlen}))"
+readonly mss_exceeds="$((${mss} + 1))"
+
+readonly max_mtu=65535
+readonly max_mss="$((${max_mtu} - ${iphlen} - ${udphlen}))"
+readonly max_mss_exceeds="$((${max_mss} + 1))"
+
+# functional checks (not a full cross-product)
+
+echo "dgram"
+./in_netns.sh ./psock_snd -d
+
+echo "dgram bind"
+./in_netns.sh ./psock_snd -d -b
+
+echo "raw"
+./in_netns.sh ./psock_snd
+
+echo "raw bind"
+./in_netns.sh ./psock_snd -b
+
+echo "raw qdisc bypass"
+./in_netns.sh ./psock_snd -q
+
+echo "raw vlan"
+./in_netns.sh ./psock_snd -V
+
+echo "raw vnet hdr"
+./in_netns.sh ./psock_snd -v
+
+echo "raw csum_off"
+./in_netns.sh ./psock_snd -v -c
+
+echo "raw csum_off with bad offset (expected to fail)"
+(! ./in_netns.sh ./psock_snd -v -c -C)
+
+
+# bounds check: send {max, max + 1, min, min - 1} lengths
+
+echo "raw min size"
+./in_netns.sh ./psock_snd -l 0
+
+echo "raw mtu size"
+./in_netns.sh ./psock_snd -l "${mss}"
+
+echo "raw mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -l "${mss_exceeds}")
+
+# fails due to ARPHRD_ETHER check in packet_extra_vlan_len_allowed
+#
+# echo "raw vlan mtu size"
+# ./in_netns.sh ./psock_snd -V -l "${mss}"
+
+echo "raw vlan mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -V -l "${mss_exceeds}")
+
+echo "dgram mtu size"
+./in_netns.sh ./psock_snd -d -l "${mss}"
+
+echo "dgram mtu size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -d -l "${mss_exceeds}")
+
+echo "raw truncate hlen (expected to fail: does not arrive)"
+(! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen}))")
+
+echo "raw truncate hlen - 1 (expected to fail: EINVAL)"
+(! ./in_netns.sh ./psock_snd -t "$((${vnet_hlen} + ${eth_hlen} - 1))")
+
+
+# gso checks: implies -l, because with gso len must exceed gso_size
+
+echo "raw gso min size"
+./in_netns.sh ./psock_snd -v -c -g -l "${mss_exceeds}"
+
+echo "raw gso max size"
+./in_netns.sh ./psock_snd -v -c -g -l "${max_mss}"
+
+echo "raw gso max size + 1 (expected to fail)"
+(! ./in_netns.sh ./psock_snd -v -c -g -l "${max_mss_exceeds}")
+
+echo "OK. All tests passed"
diff --git a/tools/testing/selftests/net/psock_tpacket.c b/tools/testing/selftests/net/psock_tpacket.c
index 24adf709bd9d..7caf3135448d 100644
--- a/tools/testing/selftests/net/psock_tpacket.c
+++ b/tools/testing/selftests/net/psock_tpacket.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013 Red Hat, Inc.
  * Author: Daniel Borkmann <dborkman@redhat.com>
@@ -11,7 +12,7 @@
  *
  * Datapath:
  *   Open a pair of packet sockets and send resp. receive an a priori known
- *   packet pattern accross the sockets and check if it was received resp.
+ *   packet pattern across the sockets and check if it was received resp.
  *   sent correctly. Fanout in combination with RX_RING is currently not
  *   tested here.
  *
@@ -19,23 +20,9 @@
  *   - TPACKET_V1: RX_RING, TX_RING
  *   - TPACKET_V2: RX_RING, TX_RING
  *   - TPACKET_V3: RX_RING
- *
- * License (GPLv2):
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#undef NDEBUG
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
@@ -47,7 +34,6 @@
 #include <ctype.h>
 #include <fcntl.h>
 #include <unistd.h>
-#include <bits/wordsize.h>
 #include <net/ethernet.h>
 #include <netinet/ip.h>
 #include <arpa/inet.h>
@@ -60,6 +46,8 @@
 
 #include "psock_lib.h"
 
+#include "kselftest.h"
+
 #ifndef bug_on
 # define bug_on(cond)		assert(!(cond))
 #endif
@@ -110,7 +98,7 @@ static unsigned int total_packets, total_bytes;
 
 static int pfsocket(int ver)
 {
-	int ret, sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+	int ret, sock = socket(PF_PACKET, SOCK_RAW, 0);
 	if (sock == -1) {
 		perror("socket");
 		exit(1);
@@ -239,7 +227,6 @@ static void walk_v1_v2_rx(int sock, struct ring *ring)
 	bug_on(ring->type != PACKET_RX_RING);
 
 	pair_udp_open(udp_sock, PORT_BASE);
-	pair_udp_setfilter(sock);
 
 	memset(&pfd, 0, sizeof(pfd));
 	pfd.fd = sock;
@@ -311,20 +298,33 @@ static inline void __v2_tx_user_ready(struct tpacket2_hdr *hdr)
 	__sync_synchronize();
 }
 
-static inline int __v1_v2_tx_kernel_ready(void *base, int version)
+static inline int __v3_tx_kernel_ready(struct tpacket3_hdr *hdr)
+{
+	return !(hdr->tp_status & (TP_STATUS_SEND_REQUEST | TP_STATUS_SENDING));
+}
+
+static inline void __v3_tx_user_ready(struct tpacket3_hdr *hdr)
+{
+	hdr->tp_status = TP_STATUS_SEND_REQUEST;
+	__sync_synchronize();
+}
+
+static inline int __tx_kernel_ready(void *base, int version)
 {
 	switch (version) {
 	case TPACKET_V1:
 		return __v1_tx_kernel_ready(base);
 	case TPACKET_V2:
 		return __v2_tx_kernel_ready(base);
+	case TPACKET_V3:
+		return __v3_tx_kernel_ready(base);
 	default:
 		bug_on(1);
 		return 0;
 	}
 }
 
-static inline void __v1_v2_tx_user_ready(void *base, int version)
+static inline void __tx_user_ready(void *base, int version)
 {
 	switch (version) {
 	case TPACKET_V1:
@@ -333,6 +333,9 @@ static inline void __v1_v2_tx_user_ready(void *base, int version)
 	case TPACKET_V2:
 		__v2_tx_user_ready(base);
 		break;
+	case TPACKET_V3:
+		__v3_tx_user_ready(base);
+		break;
 	}
 }
 
@@ -348,7 +351,22 @@ static void __v1_v2_set_packet_loss_discard(int sock)
 	}
 }
 
-static void walk_v1_v2_tx(int sock, struct ring *ring)
+static inline void *get_next_frame(struct ring *ring, int n)
+{
+	uint8_t *f0 = ring->rd[0].iov_base;
+
+	switch (ring->version) {
+	case TPACKET_V1:
+	case TPACKET_V2:
+		return ring->rd[n].iov_base;
+	case TPACKET_V3:
+		return f0 + (n * ring->req3.tp_frame_size);
+	default:
+		bug_on(1);
+	}
+}
+
+static void walk_tx(int sock, struct ring *ring)
 {
 	struct pollfd pfd;
 	int rcv_sock, ret;
@@ -360,9 +378,19 @@ static void walk_v1_v2_tx(int sock, struct ring *ring)
 		.sll_family = PF_PACKET,
 		.sll_halen = ETH_ALEN,
 	};
+	int nframes;
+
+	/* TPACKET_V{1,2} sets up the ring->rd* related variables based
+	 * on frames (e.g., rd_num is tp_frame_nr) whereas V3 sets these
+	 * up based on blocks (e.g, rd_num is  tp_block_nr)
+	 */
+	if (ring->version <= TPACKET_V2)
+		nframes = ring->rd_num;
+	else
+		nframes = ring->req3.tp_frame_nr;
 
 	bug_on(ring->type != PACKET_TX_RING);
-	bug_on(ring->rd_num < NUM_PACKETS);
+	bug_on(nframes < NUM_PACKETS);
 
 	rcv_sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
 	if (rcv_sock == -1) {
@@ -388,10 +416,11 @@ static void walk_v1_v2_tx(int sock, struct ring *ring)
 	create_payload(packet, &packet_len);
 
 	while (total_packets > 0) {
-		while (__v1_v2_tx_kernel_ready(ring->rd[frame_num].iov_base,
-					       ring->version) &&
+		void *next = get_next_frame(ring, frame_num);
+
+		while (__tx_kernel_ready(next, ring->version) &&
 		       total_packets > 0) {
-			ppd.raw = ring->rd[frame_num].iov_base;
+			ppd.raw = next;
 
 			switch (ring->version) {
 			case TPACKET_V1:
@@ -413,14 +442,27 @@ static void walk_v1_v2_tx(int sock, struct ring *ring)
 				       packet_len);
 				total_bytes += ppd.v2->tp_h.tp_snaplen;
 				break;
+			case TPACKET_V3: {
+				struct tpacket3_hdr *tx = next;
+
+				tx->tp_snaplen = packet_len;
+				tx->tp_len = packet_len;
+				tx->tp_next_offset = 0;
+
+				memcpy((uint8_t *)tx + TPACKET3_HDRLEN -
+				       sizeof(struct sockaddr_ll), packet,
+				       packet_len);
+				total_bytes += tx->tp_snaplen;
+				break;
+			}
 			}
 
 			status_bar_update();
 			total_packets--;
 
-			__v1_v2_tx_user_ready(ppd.raw, ring->version);
+			__tx_user_ready(next, ring->version);
 
-			frame_num = (frame_num + 1) % ring->rd_num;
+			frame_num = (frame_num + 1) % nframes;
 		}
 
 		poll(&pfd, 1, 1);
@@ -460,7 +502,7 @@ static void walk_v1_v2(int sock, struct ring *ring)
 	if (ring->type == PACKET_RX_RING)
 		walk_v1_v2_rx(sock, ring);
 	else
-		walk_v1_v2_tx(sock, ring);
+		walk_tx(sock, ring);
 }
 
 static uint64_t __v3_prev_block_seq_num = 0;
@@ -546,7 +588,6 @@ static void walk_v3_rx(int sock, struct ring *ring)
 	bug_on(ring->type != PACKET_RX_RING);
 
 	pair_udp_open(udp_sock, PORT_BASE);
-	pair_udp_setfilter(sock);
 
 	memset(&pfd, 0, sizeof(pfd));
 	pfd.fd = sock;
@@ -583,7 +624,7 @@ static void walk_v3(int sock, struct ring *ring)
 	if (ring->type == PACKET_RX_RING)
 		walk_v3_rx(sock, ring);
 	else
-		bug_on(1);
+		walk_tx(sock, ring);
 }
 
 static void __v1_v2_fill(struct ring *ring, unsigned int blocks)
@@ -602,12 +643,13 @@ static void __v1_v2_fill(struct ring *ring, unsigned int blocks)
 	ring->flen = ring->req.tp_frame_size;
 }
 
-static void __v3_fill(struct ring *ring, unsigned int blocks)
+static void __v3_fill(struct ring *ring, unsigned int blocks, int type)
 {
-	ring->req3.tp_retire_blk_tov = 64;
-	ring->req3.tp_sizeof_priv = 0;
-	ring->req3.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
-
+	if (type == PACKET_RX_RING) {
+		ring->req3.tp_retire_blk_tov = 64;
+		ring->req3.tp_sizeof_priv = 0;
+		ring->req3.tp_feature_req_word = TP_FT_REQ_FILL_RXHASH;
+	}
 	ring->req3.tp_block_size = getpagesize() << 2;
 	ring->req3.tp_frame_size = TPACKET_ALIGNMENT << 7;
 	ring->req3.tp_block_nr = blocks;
@@ -641,7 +683,7 @@ static void setup_ring(int sock, struct ring *ring, int version, int type)
 		break;
 
 	case TPACKET_V3:
-		__v3_fill(ring, blocks);
+		__v3_fill(ring, blocks, type);
 		ret = setsockopt(sock, SOL_PACKET, type, &ring->req3,
 				 sizeof(ring->req3));
 		break;
@@ -685,6 +727,8 @@ static void bind_ring(int sock, struct ring *ring)
 {
 	int ret;
 
+	pair_udp_setfilter(sock);
+
 	ring->ll.sll_family = PF_PACKET;
 	ring->ll.sll_protocol = htons(ETH_P_ALL);
 	ring->ll.sll_ifindex = if_nametoindex("lo");
@@ -741,7 +785,7 @@ static int test_kernel_bit_width(void)
 
 static int test_user_bit_width(void)
 {
-	return __WORDSIZE;
+	return sizeof(long) * 8;
 }
 
 static const char *tpacket_str[] = {
@@ -769,7 +813,7 @@ static int test_tpacket(int version, int type)
 		fprintf(stderr, "test: skip %s %s since user and kernel "
 			"space have different bit width\n",
 			tpacket_str[version], type_str[type]);
-		return 0;
+		return KSFT_SKIP;
 	}
 
 	sock = pfsocket(version);
@@ -796,6 +840,7 @@ int main(void)
 	ret |= test_tpacket(TPACKET_V2, PACKET_TX_RING);
 
 	ret |= test_tpacket(TPACKET_V3, PACKET_RX_RING);
+	ret |= test_tpacket(TPACKET_V3, PACKET_TX_RING);
 
 	if (ret)
 		return 1;
diff --git a/tools/testing/selftests/net/rds/.gitignore b/tools/testing/selftests/net/rds/.gitignore
new file mode 100644
index 000000000000..1c6f04e2aa11
--- /dev/null
+++ b/tools/testing/selftests/net/rds/.gitignore
@@ -0,0 +1 @@
+include.sh
diff --git a/tools/testing/selftests/net/rds/Makefile b/tools/testing/selftests/net/rds/Makefile
new file mode 100644
index 000000000000..762845cc973c
--- /dev/null
+++ b/tools/testing/selftests/net/rds/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+
+all:
+	@echo mk_build_dir="$(shell pwd)" > include.sh
+
+TEST_PROGS := run.sh
+
+TEST_FILES := \
+	include.sh \
+	test.py \
+# end of TEST_FILES
+
+EXTRA_CLEAN := \
+	include.sh \
+	/tmp/rds_logs \
+# end of EXTRA_CLEAN
+
+include ../../lib.mk
diff --git a/tools/testing/selftests/net/rds/README.txt b/tools/testing/selftests/net/rds/README.txt
new file mode 100644
index 000000000000..cbde2951ab13
--- /dev/null
+++ b/tools/testing/selftests/net/rds/README.txt
@@ -0,0 +1,41 @@
+RDS self-tests
+==============
+
+These scripts provide a coverage test for RDS-TCP by creating two
+network namespaces and running rds packets between them. A loopback
+network is provisioned with optional probability of packet loss or
+corruption. A workload of 50000 hashes, each 64 characters in size,
+are passed over an RDS socket on this test network. A passing test means
+the RDS-TCP stack was able to recover properly.  The provided config.sh
+can be used to compile the kernel with the necessary gcov options.  The
+kernel may optionally be configured to omit the coverage report as well.
+
+USAGE:
+	run.sh [-d logdir] [-l packet_loss] [-c packet_corruption]
+	       [-u packet_duplcate]
+
+OPTIONS:
+	-d	Log directory.  Defaults to tools/testing/selftests/net/rds/rds_logs
+
+	-l	Simulates a percentage of packet loss
+
+	-c	Simulates a percentage of packet corruption
+
+	-u	Simulates a percentage of packet duplication.
+
+EXAMPLE:
+
+    # Create a suitable gcov enabled .config
+    tools/testing/selftests/net/rds/config.sh -g
+
+    # Alternatly create a gcov disabled .config
+    tools/testing/selftests/net/rds/config.sh
+
+    # build the kernel
+    vng --build  --config tools/testing/selftests/net/config
+
+    # launch the tests in a VM
+    vng -v --rwdir ./ --run . --user root --cpus 4 -- \
+        "export PYTHONPATH=tools/testing/selftests/net/; tools/testing/selftests/net/rds/run.sh"
+
+An HTML coverage report will be output in tools/testing/selftests/net/rds/rds_logs/coverage/.
diff --git a/tools/testing/selftests/net/rds/config.sh b/tools/testing/selftests/net/rds/config.sh
new file mode 100755
index 000000000000..791c8dbe1095
--- /dev/null
+++ b/tools/testing/selftests/net/rds/config.sh
@@ -0,0 +1,53 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+set -u
+set -x
+
+unset KBUILD_OUTPUT
+
+GENERATE_GCOV_REPORT=0
+while getopts "g" opt; do
+  case ${opt} in
+    g)
+      GENERATE_GCOV_REPORT=1
+      ;;
+    :)
+      echo "USAGE: config.sh [-g]"
+      exit 1
+      ;;
+    ?)
+      echo "Invalid option: -${OPTARG}."
+      exit 1
+      ;;
+  esac
+done
+
+CONF_FILE="tools/testing/selftests/net/config"
+
+# no modules
+scripts/config --file "$CONF_FILE" --disable CONFIG_MODULES
+
+# enable RDS
+scripts/config --file "$CONF_FILE" --enable CONFIG_RDS
+scripts/config --file "$CONF_FILE" --enable CONFIG_RDS_TCP
+
+if [ "$GENERATE_GCOV_REPORT" -eq 1 ]; then
+	# instrument RDS and only RDS
+	scripts/config --file "$CONF_FILE" --enable CONFIG_GCOV_KERNEL
+	scripts/config --file "$CONF_FILE" --disable GCOV_PROFILE_ALL
+	scripts/config --file "$CONF_FILE" --enable GCOV_PROFILE_RDS
+else
+	scripts/config --file "$CONF_FILE" --disable CONFIG_GCOV_KERNEL
+	scripts/config --file "$CONF_FILE" --disable GCOV_PROFILE_ALL
+	scripts/config --file "$CONF_FILE" --disable GCOV_PROFILE_RDS
+fi
+
+# need network namespaces to run tests with veth network interfaces
+scripts/config --file "$CONF_FILE" --enable CONFIG_NET_NS
+scripts/config --file "$CONF_FILE" --enable CONFIG_VETH
+
+# simulate packet loss
+scripts/config --file "$CONF_FILE" --enable CONFIG_NET_SCH_NETEM
+
diff --git a/tools/testing/selftests/net/rds/run.sh b/tools/testing/selftests/net/rds/run.sh
new file mode 100755
index 000000000000..8aee244f582a
--- /dev/null
+++ b/tools/testing/selftests/net/rds/run.sh
@@ -0,0 +1,224 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+set -e
+set -u
+
+unset KBUILD_OUTPUT
+
+current_dir="$(realpath "$(dirname "$0")")"
+build_dir="$current_dir"
+
+build_include="$current_dir/include.sh"
+if test -f "$build_include"; then
+	# this include will define "$mk_build_dir" as the location the test was
+	# built.  We will need this if the tests are installed in a location
+	# other than the kernel source
+
+	source "$build_include"
+	build_dir="$mk_build_dir"
+fi
+
+# This test requires kernel source and the *.gcda data therein
+# Locate the top level of the kernel source, and the net/rds
+# subfolder with the appropriate *.gcno object files
+ksrc_dir="$(realpath "$build_dir"/../../../../../)"
+kconfig="$ksrc_dir/.config"
+obj_dir="$ksrc_dir/net/rds"
+
+GCOV_CMD=gcov
+
+#check to see if the host has the required packages to generate a gcov report
+check_gcov_env()
+{
+	if ! which "$GCOV_CMD" > /dev/null 2>&1; then
+		echo "Warning: Could not find gcov. "
+		GENERATE_GCOV_REPORT=0
+		return
+	fi
+
+	# the gcov version must match the gcc version
+	GCC_VER=$(gcc -dumpfullversion)
+	GCOV_VER=$($GCOV_CMD -v | grep gcov | awk '{print $3}'| awk 'BEGIN {FS="-"}{print $1}')
+	if [ "$GCOV_VER" != "$GCC_VER" ]; then
+		#attempt to find a matching gcov version
+		GCOV_CMD=gcov-$(gcc -dumpversion)
+
+		if ! which "$GCOV_CMD" > /dev/null 2>&1; then
+			echo "Warning: Could not find an appropriate gcov installation. \
+				gcov version must match gcc version"
+			GENERATE_GCOV_REPORT=0
+			return
+		fi
+
+		#recheck version number of found gcov executable
+		GCOV_VER=$($GCOV_CMD -v | grep gcov | awk '{print $3}'| \
+			awk 'BEGIN {FS="-"}{print $1}')
+		if [ "$GCOV_VER" != "$GCC_VER" ]; then
+			echo "Warning: Could not find an appropriate gcov installation. \
+				gcov version must match gcc version"
+			GENERATE_GCOV_REPORT=0
+		else
+			echo "Warning: Mismatched gcc and gcov detected.  Using $GCOV_CMD"
+		fi
+	fi
+}
+
+# Check to see if the kconfig has the required configs to generate a coverage report
+check_gcov_conf()
+{
+	if ! grep -x "CONFIG_GCOV_PROFILE_RDS=y" "$kconfig" > /dev/null 2>&1; then
+		echo "INFO: CONFIG_GCOV_PROFILE_RDS should be enabled for coverage reports"
+		GENERATE_GCOV_REPORT=0
+	fi
+	if ! grep -x "CONFIG_GCOV_KERNEL=y" "$kconfig" > /dev/null 2>&1; then
+		echo "INFO: CONFIG_GCOV_KERNEL should be enabled for coverage reports"
+		GENERATE_GCOV_REPORT=0
+	fi
+	if grep -x "CONFIG_GCOV_PROFILE_ALL=y" "$kconfig" > /dev/null 2>&1; then
+		echo "INFO: CONFIG_GCOV_PROFILE_ALL should be disabled for coverage reports"
+		GENERATE_GCOV_REPORT=0
+	fi
+
+	if [ "$GENERATE_GCOV_REPORT" -eq 0 ]; then
+		echo "To enable gcov reports, please run "\
+			"\"tools/testing/selftests/net/rds/config.sh -g\" and rebuild the kernel"
+	else
+		# if we have the required kernel configs, proceed to check the environment to
+		# ensure we have the required gcov packages
+		check_gcov_env
+	fi
+}
+
+# Kselftest framework requirement - SKIP code is 4.
+check_conf_enabled() {
+	if ! grep -x "$1=y" "$kconfig" > /dev/null 2>&1; then
+		echo "selftests: [SKIP] This test requires $1 enabled"
+		echo "Please run tools/testing/selftests/net/rds/config.sh and rebuild the kernel"
+		exit 4
+	fi
+}
+check_conf_disabled() {
+	if grep -x "$1=y" "$kconfig" > /dev/null 2>&1; then
+		echo "selftests: [SKIP] This test requires $1 disabled"
+		echo "Please run tools/testing/selftests/net/rds/config.sh and rebuild the kernel"
+		exit 4
+	fi
+}
+check_conf() {
+	check_conf_enabled CONFIG_NET_SCH_NETEM
+	check_conf_enabled CONFIG_VETH
+	check_conf_enabled CONFIG_NET_NS
+	check_conf_enabled CONFIG_RDS_TCP
+	check_conf_enabled CONFIG_RDS
+	check_conf_disabled CONFIG_MODULES
+}
+
+check_env()
+{
+	if ! test -d "$obj_dir"; then
+		echo "selftests: [SKIP] This test requires a kernel source tree"
+		exit 4
+	fi
+	if ! test -e "$kconfig"; then
+		echo "selftests: [SKIP] This test requires a configured kernel source tree"
+		exit 4
+	fi
+	if ! which strace > /dev/null 2>&1; then
+		echo "selftests: [SKIP] Could not run test without strace"
+		exit 4
+	fi
+	if ! which tcpdump > /dev/null 2>&1; then
+		echo "selftests: [SKIP] Could not run test without tcpdump"
+		exit 4
+	fi
+
+	if ! which python3 > /dev/null 2>&1; then
+		echo "selftests: [SKIP] Could not run test without python3"
+		exit 4
+	fi
+
+	python_major=$(python3 -c "import sys; print(sys.version_info[0])")
+	python_minor=$(python3 -c "import sys; print(sys.version_info[1])")
+	if [[ python_major -lt 3 || ( python_major -eq 3 && python_minor -lt 9 ) ]] ; then
+		echo "selftests: [SKIP] Could not run test without at least python3.9"
+		python3 -V
+		exit 4
+	fi
+}
+
+LOG_DIR="$current_dir"/rds_logs
+PLOSS=0
+PCORRUPT=0
+PDUP=0
+GENERATE_GCOV_REPORT=1
+while getopts "d:l:c:u:" opt; do
+  case ${opt} in
+    d)
+      LOG_DIR=${OPTARG}
+      ;;
+    l)
+      PLOSS=${OPTARG}
+      ;;
+    c)
+      PCORRUPT=${OPTARG}
+      ;;
+    u)
+      PDUP=${OPTARG}
+      ;;
+    :)
+      echo "USAGE: run.sh [-d logdir] [-l packet_loss] [-c packet_corruption]" \
+           "[-u packet_duplcate] [-g]"
+      exit 1
+      ;;
+    ?)
+      echo "Invalid option: -${OPTARG}."
+      exit 1
+      ;;
+  esac
+done
+
+
+check_env
+check_conf
+check_gcov_conf
+
+
+rm -fr "$LOG_DIR"
+TRACE_FILE="${LOG_DIR}/rds-strace.txt"
+COVR_DIR="${LOG_DIR}/coverage/"
+mkdir -p  "$LOG_DIR"
+mkdir -p "$COVR_DIR"
+
+set +e
+echo running RDS tests...
+echo Traces will be logged to "$TRACE_FILE"
+rm -f "$TRACE_FILE"
+strace -T -tt -o "$TRACE_FILE" python3 "$(dirname "$0")/test.py" --timeout 400 -d "$LOG_DIR" \
+       -l "$PLOSS" -c "$PCORRUPT" -u "$PDUP"
+
+test_rc=$?
+dmesg > "${LOG_DIR}/dmesg.out"
+
+if [ "$GENERATE_GCOV_REPORT" -eq 1 ]; then
+       echo saving coverage data...
+       (set +x; cd /sys/kernel/debug/gcov; find ./* -name '*.gcda' | \
+       while read -r f
+       do
+               cat < "/sys/kernel/debug/gcov/$f" > "/$f"
+       done)
+
+       echo running gcovr...
+       gcovr -s --html-details --gcov-executable "$GCOV_CMD" --gcov-ignore-parse-errors \
+             -o "${COVR_DIR}/gcovr" "${ksrc_dir}/net/rds/"
+else
+       echo "Coverage report will be skipped"
+fi
+
+if [ "$test_rc" -eq 0 ]; then
+	echo "PASS: Test completed successfully"
+else
+	echo "FAIL: Test failed"
+fi
+
+exit "$test_rc"
diff --git a/tools/testing/selftests/net/rds/test.py b/tools/testing/selftests/net/rds/test.py
new file mode 100755
index 000000000000..4a7178d11193
--- /dev/null
+++ b/tools/testing/selftests/net/rds/test.py
@@ -0,0 +1,265 @@
+#! /usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+import argparse
+import ctypes
+import errno
+import hashlib
+import os
+import select
+import signal
+import socket
+import subprocess
+import sys
+import atexit
+from pwd import getpwuid
+from os import stat
+
+# Allow utils module to be imported from different directory
+this_dir = os.path.dirname(os.path.realpath(__file__))
+sys.path.append(os.path.join(this_dir, "../"))
+from lib.py.utils import ip
+
+libc = ctypes.cdll.LoadLibrary('libc.so.6')
+setns = libc.setns
+
+net0 = 'net0'
+net1 = 'net1'
+
+veth0 = 'veth0'
+veth1 = 'veth1'
+
+# Helper function for creating a socket inside a network namespace.
+# We need this because otherwise RDS will detect that the two TCP
+# sockets are on the same interface and use the loop transport instead
+# of the TCP transport.
+def netns_socket(netns, *args):
+    u0, u1 = socket.socketpair(socket.AF_UNIX, socket.SOCK_SEQPACKET)
+
+    child = os.fork()
+    if child == 0:
+        # change network namespace
+        with open(f'/var/run/netns/{netns}') as f:
+            try:
+                ret = setns(f.fileno(), 0)
+            except IOError as e:
+                print(e.errno)
+                print(e)
+
+        # create socket in target namespace
+        s = socket.socket(*args)
+
+        # send resulting socket to parent
+        socket.send_fds(u0, [], [s.fileno()])
+
+        sys.exit(0)
+
+    # receive socket from child
+    _, s, _, _ = socket.recv_fds(u1, 0, 1)
+    os.waitpid(child, 0)
+    u0.close()
+    u1.close()
+    return socket.fromfd(s[0], *args)
+
+def signal_handler(sig, frame):
+    print('Test timed out')
+    sys.exit(1)
+
+#Parse out command line arguments.  We take an optional
+# timeout parameter and an optional log output folder
+parser = argparse.ArgumentParser(description="init script args",
+                  formatter_class=argparse.ArgumentDefaultsHelpFormatter)
+parser.add_argument("-d", "--logdir", action="store",
+                    help="directory to store logs", default="/tmp")
+parser.add_argument('--timeout', help="timeout to terminate hung test",
+                    type=int, default=0)
+parser.add_argument('-l', '--loss', help="Simulate tcp packet loss",
+                    type=int, default=0)
+parser.add_argument('-c', '--corruption', help="Simulate tcp packet corruption",
+                    type=int, default=0)
+parser.add_argument('-u', '--duplicate', help="Simulate tcp packet duplication",
+                    type=int, default=0)
+args = parser.parse_args()
+logdir=args.logdir
+packet_loss=str(args.loss)+'%'
+packet_corruption=str(args.corruption)+'%'
+packet_duplicate=str(args.duplicate)+'%'
+
+ip(f"netns add {net0}")
+ip(f"netns add {net1}")
+ip(f"link add type veth")
+
+addrs = [
+    # we technically don't need different port numbers, but this will
+    # help identify traffic in the network analyzer
+    ('10.0.0.1', 10000),
+    ('10.0.0.2', 20000),
+]
+
+# move interfaces to separate namespaces so they can no longer be
+# bound directly; this prevents rds from switching over from the tcp
+# transport to the loop transport.
+ip(f"link set {veth0} netns {net0} up")
+ip(f"link set {veth1} netns {net1} up")
+
+
+
+# add addresses
+ip(f"-n {net0} addr add {addrs[0][0]}/32 dev {veth0}")
+ip(f"-n {net1} addr add {addrs[1][0]}/32 dev {veth1}")
+
+# add routes
+ip(f"-n {net0} route add {addrs[1][0]}/32 dev {veth0}")
+ip(f"-n {net1} route add {addrs[0][0]}/32 dev {veth1}")
+
+# sanity check that our two interfaces/addresses are correctly set up
+# and communicating by doing a single ping
+ip(f"netns exec {net0} ping -c 1 {addrs[1][0]}")
+
+# Start a packet capture on each network
+for net in [net0, net1]:
+    tcpdump_pid = os.fork()
+    if tcpdump_pid == 0:
+        pcap = logdir+'/'+net+'.pcap'
+        subprocess.check_call(['touch', pcap])
+        user = getpwuid(stat(pcap).st_uid).pw_name
+        ip(f"netns exec {net} /usr/sbin/tcpdump -Z {user} -i any -w {pcap}")
+        sys.exit(0)
+
+# simulate packet loss, duplication and corruption
+for net, iface in [(net0, veth0), (net1, veth1)]:
+    ip(f"netns exec {net} /usr/sbin/tc qdisc add dev {iface} root netem  \
+         corrupt {packet_corruption} loss {packet_loss} duplicate  \
+         {packet_duplicate}")
+
+# add a timeout
+if args.timeout > 0:
+    signal.alarm(args.timeout)
+    signal.signal(signal.SIGALRM, signal_handler)
+
+sockets = [
+    netns_socket(net0, socket.AF_RDS, socket.SOCK_SEQPACKET),
+    netns_socket(net1, socket.AF_RDS, socket.SOCK_SEQPACKET),
+]
+
+for s, addr in zip(sockets, addrs):
+    s.bind(addr)
+    s.setblocking(0)
+
+fileno_to_socket = {
+    s.fileno(): s for s in sockets
+}
+
+addr_to_socket = {
+    addr: s for addr, s in zip(addrs, sockets)
+}
+
+socket_to_addr = {
+    s: addr for addr, s in zip(addrs, sockets)
+}
+
+send_hashes = {}
+recv_hashes = {}
+
+ep = select.epoll()
+
+for s in sockets:
+    ep.register(s, select.EPOLLRDNORM)
+
+n = 50000
+nr_send = 0
+nr_recv = 0
+
+while nr_send < n:
+    # Send as much as we can without blocking
+    print("sending...", nr_send, nr_recv)
+    while nr_send < n:
+        send_data = hashlib.sha256(
+            f'packet {nr_send}'.encode('utf-8')).hexdigest().encode('utf-8')
+
+        # pseudo-random send/receive pattern
+        sender = sockets[nr_send % 2]
+        receiver = sockets[1 - (nr_send % 3) % 2]
+
+        try:
+            sender.sendto(send_data, socket_to_addr[receiver])
+            send_hashes.setdefault((sender.fileno(), receiver.fileno()),
+                    hashlib.sha256()).update(f'<{send_data}>'.encode('utf-8'))
+            nr_send = nr_send + 1
+        except BlockingIOError as e:
+            break
+        except OSError as e:
+            if e.errno in [errno.ENOBUFS, errno.ECONNRESET, errno.EPIPE]:
+                break
+            raise
+
+    # Receive as much as we can without blocking
+    print("receiving...", nr_send, nr_recv)
+    while nr_recv < nr_send:
+        for fileno, eventmask in ep.poll():
+            receiver = fileno_to_socket[fileno]
+
+            if eventmask & select.EPOLLRDNORM:
+                while True:
+                    try:
+                        recv_data, address = receiver.recvfrom(1024)
+                        sender = addr_to_socket[address]
+                        recv_hashes.setdefault((sender.fileno(),
+                            receiver.fileno()), hashlib.sha256()).update(
+                                    f'<{recv_data}>'.encode('utf-8'))
+                        nr_recv = nr_recv + 1
+                    except BlockingIOError as e:
+                        break
+
+    # exercise net/rds/tcp.c:rds_tcp_sysctl_reset()
+    for net in [net0, net1]:
+        ip(f"netns exec {net} /usr/sbin/sysctl net.rds.tcp.rds_tcp_rcvbuf=10000")
+        ip(f"netns exec {net} /usr/sbin/sysctl net.rds.tcp.rds_tcp_sndbuf=10000")
+
+print("done", nr_send, nr_recv)
+
+# the Python socket module doesn't know these
+RDS_INFO_FIRST = 10000
+RDS_INFO_LAST = 10017
+
+nr_success = 0
+nr_error = 0
+
+for s in sockets:
+    for optname in range(RDS_INFO_FIRST, RDS_INFO_LAST + 1):
+        # Sigh, the Python socket module doesn't allow us to pass
+        # buffer lengths greater than 1024 for some reason. RDS
+        # wants multiple pages.
+        try:
+            s.getsockopt(socket.SOL_RDS, optname, 1024)
+            nr_success = nr_success + 1
+        except OSError as e:
+            nr_error = nr_error + 1
+            if e.errno == errno.ENOSPC:
+                # ignore
+                pass
+
+print(f"getsockopt(): {nr_success}/{nr_error}")
+
+print("Stopping network packet captures")
+subprocess.check_call(['killall', '-q', 'tcpdump'])
+
+# We're done sending and receiving stuff, now let's check if what
+# we received is what we sent.
+for (sender, receiver), send_hash in send_hashes.items():
+    recv_hash = recv_hashes.get((sender, receiver))
+
+    if recv_hash is None:
+        print("FAIL: No data received")
+        sys.exit(1)
+
+    if send_hash.hexdigest() != recv_hash.hexdigest():
+        print("FAIL: Send/recv mismatch")
+        print("hash expected:", send_hash.hexdigest())
+        print("hash received:", recv_hash.hexdigest())
+        sys.exit(1)
+
+    print(f"{sender}/{receiver}: ok")
+
+print("Success")
+sys.exit(0)
diff --git a/tools/testing/selftests/net/reuseaddr_conflict.c b/tools/testing/selftests/net/reuseaddr_conflict.c
new file mode 100644
index 000000000000..bfb07dc49518
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_conflict.c
@@ -0,0 +1,114 @@
+/*
+ * Test for the regression introduced by
+ *
+ * b9470c27607b ("inet: kill smallest_size and smallest_port")
+ *
+ * If we open an ipv4 socket on a port with reuseaddr we shouldn't reset the tb
+ * when we open the ipv6 conterpart, which is what was happening previously.
+ */
+#include <errno.h>
+#include <error.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define PORT 9999
+
+int open_port(int ipv6, int any)
+{
+	int fd = -1;
+	int reuseaddr = 1;
+	int v6only = 1;
+	int addrlen;
+	int ret = -1;
+	struct sockaddr *addr;
+	int family = ipv6 ? AF_INET6 : AF_INET;
+
+	struct sockaddr_in6 addr6 = {
+		.sin6_family = AF_INET6,
+		.sin6_port = htons(PORT),
+		.sin6_addr = in6addr_any
+	};
+	struct sockaddr_in addr4 = {
+		.sin_family = AF_INET,
+		.sin_port = htons(PORT),
+		.sin_addr.s_addr = any ? htonl(INADDR_ANY) : inet_addr("127.0.0.1"),
+	};
+
+
+	if (ipv6) {
+		addr = (struct sockaddr*)&addr6;
+		addrlen = sizeof(addr6);
+	} else {
+		addr = (struct sockaddr*)&addr4;
+		addrlen = sizeof(addr4);
+	}
+
+	if ((fd = socket(family, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+		perror("socket");
+		goto out;
+	}
+
+	if (ipv6 && setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&v6only,
+			       sizeof(v6only)) < 0) {
+		perror("setsockopt IPV6_V6ONLY");
+		goto out;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
+		       sizeof(reuseaddr)) < 0) {
+		perror("setsockopt SO_REUSEADDR");
+		goto out;
+	}
+
+	if (bind(fd, addr, addrlen) < 0) {
+		perror("bind");
+		goto out;
+	}
+
+	if (any)
+		return fd;
+
+	if (listen(fd, 1) < 0) {
+		perror("listen");
+		goto out;
+	}
+	return fd;
+out:
+	close(fd);
+	return ret;
+}
+
+int main(void)
+{
+	int listenfd;
+	int fd1, fd2;
+
+	fprintf(stderr, "Opening 127.0.0.1:%d\n", PORT);
+	listenfd = open_port(0, 0);
+	if (listenfd < 0)
+		error(1, errno, "Couldn't open listen socket");
+	fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+	fd1 = open_port(0, 1);
+	if (fd1 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+	fprintf(stderr, "Opening in6addr_any:%d\n", PORT);
+	fd1 = open_port(1, 1);
+	if (fd1 < 0)
+		error(1, errno, "Couldn't open ipv6 reuseport");
+	fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+	fd2 = open_port(0, 1);
+	if (fd2 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+	close(fd1);
+	fprintf(stderr, "Opening INADDR_ANY:%d after closing ipv6 socket\n", PORT);
+	fd1 = open_port(0, 1);
+	if (fd1 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on an already bound non-reuseport socket with no ipv6");
+	fprintf(stderr, "Success\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.c b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
new file mode 100644
index 000000000000..5aad27a0d13a
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Check if we can fully utilize 4-tuples for connect().
+ *
+ * Rules to bind sockets to the same port when all ephemeral ports are
+ * exhausted.
+ *
+ *   1. if there are TCP_LISTEN sockets on the port, fail to bind.
+ *   2. if there are sockets without SO_REUSEADDR, fail to bind.
+ *   3. if SO_REUSEADDR is disabled, fail to bind.
+ *   4. if SO_REUSEADDR is enabled and SO_REUSEPORT is disabled,
+ *        succeed to bind.
+ *   5. if SO_REUSEADDR and SO_REUSEPORT are enabled and
+ *        there is no socket having the both options and the same EUID,
+ *        succeed to bind.
+ *   6. fail to bind.
+ *
+ * Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+ */
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include "kselftest_harness.h"
+
+struct reuse_opts {
+	int reuseaddr[2];
+	int reuseport[2];
+};
+
+struct reuse_opts unreusable_opts[12] = {
+	{{0, 0}, {0, 0}},
+	{{0, 0}, {0, 1}},
+	{{0, 0}, {1, 0}},
+	{{0, 0}, {1, 1}},
+	{{0, 1}, {0, 0}},
+	{{0, 1}, {0, 1}},
+	{{0, 1}, {1, 0}},
+	{{0, 1}, {1, 1}},
+	{{1, 0}, {0, 0}},
+	{{1, 0}, {0, 1}},
+	{{1, 0}, {1, 0}},
+	{{1, 0}, {1, 1}},
+};
+
+struct reuse_opts reusable_opts[4] = {
+	{{1, 1}, {0, 0}},
+	{{1, 1}, {0, 1}},
+	{{1, 1}, {1, 0}},
+	{{1, 1}, {1, 1}},
+};
+
+int bind_port(struct __test_metadata *_metadata, int reuseaddr, int reuseport)
+{
+	struct sockaddr_in local_addr;
+	int len = sizeof(local_addr);
+	int fd, ret;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	ASSERT_NE(-1, fd) TH_LOG("failed to open socket.");
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuseaddr, sizeof(int));
+	ASSERT_EQ(0, ret) TH_LOG("failed to setsockopt: SO_REUSEADDR.");
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &reuseport, sizeof(int));
+	ASSERT_EQ(0, ret) TH_LOG("failed to setsockopt: SO_REUSEPORT.");
+
+	local_addr.sin_family = AF_INET;
+	local_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
+	local_addr.sin_port = 0;
+
+	if (bind(fd, (struct sockaddr *)&local_addr, len) == -1) {
+		close(fd);
+		return -1;
+	}
+
+	return fd;
+}
+
+TEST(reuseaddr_ports_exhausted_unreusable)
+{
+	struct reuse_opts *opts;
+	int i, j, fd[2];
+
+	for (i = 0; i < 12; i++) {
+		opts = &unreusable_opts[i];
+
+		for (j = 0; j < 2; j++)
+			fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+		ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+		EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind.");
+
+		for (j = 0; j < 2; j++)
+			if (fd[j] != -1)
+				close(fd[j]);
+	}
+}
+
+TEST(reuseaddr_ports_exhausted_reusable_same_euid)
+{
+	struct reuse_opts *opts;
+	int i, j, fd[2];
+
+	for (i = 0; i < 4; i++) {
+		opts = &reusable_opts[i];
+
+		for (j = 0; j < 2; j++)
+			fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+		ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+
+		if (opts->reuseport[0] && opts->reuseport[1]) {
+			EXPECT_EQ(-1, fd[1]) TH_LOG("should fail to bind because both sockets successfully listened.");
+		} else {
+			EXPECT_NE(-1, fd[1]) TH_LOG("should succeed to bind to connect to different destinations.");
+		}
+
+		for (j = 0; j < 2; j++)
+			if (fd[j] != -1)
+				close(fd[j]);
+	}
+}
+
+TEST(reuseaddr_ports_exhausted_reusable_different_euid)
+{
+	struct reuse_opts *opts;
+	int i, j, ret, fd[2];
+	uid_t euid[2] = {10, 20};
+
+	for (i = 0; i < 4; i++) {
+		opts = &reusable_opts[i];
+
+		for (j = 0; j < 2; j++) {
+			ret = seteuid(euid[j]);
+			ASSERT_EQ(0, ret) TH_LOG("failed to seteuid: %d.", euid[j]);
+
+			fd[j] = bind_port(_metadata, opts->reuseaddr[j], opts->reuseport[j]);
+
+			ret = seteuid(0);
+			ASSERT_EQ(0, ret) TH_LOG("failed to seteuid: 0.");
+		}
+
+		ASSERT_NE(-1, fd[0]) TH_LOG("failed to bind.");
+		EXPECT_NE(-1, fd[1]) TH_LOG("should succeed to bind because one socket can be bound in each euid.");
+
+		if (fd[1] != -1) {
+			ret = listen(fd[0], 5);
+			ASSERT_EQ(0, ret) TH_LOG("failed to listen.");
+
+			ret = listen(fd[1], 5);
+			EXPECT_EQ(-1, ret) TH_LOG("should fail to listen because only one uid reserves the port in TCP_LISTEN.");
+		}
+
+		for (j = 0; j < 2; j++)
+			if (fd[j] != -1)
+				close(fd[j]);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh b/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh
new file mode 100755
index 000000000000..20e3a2913d06
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_ports_exhausted.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run tests when all ephemeral ports are exhausted.
+#
+# Author: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
+
+set +x
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+	ip netns add "${NETNS}"
+	ip -netns "${NETNS}" link set lo up
+	ip netns exec "${NETNS}" \
+		sysctl -w net.ipv4.ip_local_port_range="32768 32768" \
+		> /dev/null 2>&1
+	ip netns exec "${NETNS}" \
+		sysctl -w net.ipv4.ip_autobind_reuse=1 > /dev/null 2>&1
+}
+
+cleanup() {
+	ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+do_test() {
+	ip netns exec "${NETNS}" ./reuseaddr_ports_exhausted
+}
+
+do_test
+echo "tests done"
diff --git a/tools/testing/selftests/net/reuseport_addr_any.c b/tools/testing/selftests/net/reuseport_addr_any.c
new file mode 100644
index 000000000000..1c43401a1c80
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_addr_any.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Test that sockets listening on a specific address are preferred
+ * over sockets listening on addr_any.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static const char *IP4_ADDR = "127.0.0.1";
+static const char *IP6_ADDR = "::1";
+static const char *IP4_MAPPED6 = "::ffff:127.0.0.1";
+
+static const int PORT = 8888;
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds, int count,
+			 const char *addr_str)
+{
+	struct sockaddr_in  addr4 = {0};
+	struct sockaddr_in6 addr6 = {0};
+	struct sockaddr *addr;
+	int opt, i, sz;
+
+	memset(&addr, 0, sizeof(addr));
+
+	switch (family) {
+	case AF_INET:
+		addr4.sin_family = family;
+		if (!addr_str)
+			addr4.sin_addr.s_addr = htonl(INADDR_ANY);
+		else if (!inet_pton(family, addr_str, &addr4.sin_addr.s_addr))
+			error(1, errno, "inet_pton failed: %s", addr_str);
+		addr4.sin_port = htons(PORT);
+		sz = sizeof(addr4);
+		addr = (struct sockaddr *)&addr4;
+		break;
+	case AF_INET6:
+		addr6.sin6_family = AF_INET6;
+		if (!addr_str)
+			addr6.sin6_addr = in6addr_any;
+		else if (!inet_pton(family, addr_str, &addr6.sin6_addr))
+			error(1, errno, "inet_pton failed: %s", addr_str);
+		addr6.sin6_port = htons(PORT);
+		sz = sizeof(addr6);
+		addr = (struct sockaddr *)&addr6;
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+		/* clang does not recognize error() above as terminating
+		 * the program, so it complains that saddr, sz are
+		 * not initialized when this code path is taken. Silence it.
+		 */
+		return;
+	}
+
+	for (i = 0; i < count; ++i) {
+		rcv_fds[i] = socket(family, proto, 0);
+		if (rcv_fds[i] < 0)
+			error(1, errno, "failed to create receive socket");
+
+		opt = 1;
+		if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT");
+
+		if (bind(rcv_fds[i], addr, sz))
+			error(1, errno, "failed to bind receive socket");
+
+		if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+			error(1, errno, "tcp: failed to listen on receive port");
+	}
+}
+
+static int connect_and_send(int family, int proto)
+{
+	struct sockaddr_in  saddr4 = {0};
+	struct sockaddr_in  daddr4 = {0};
+	struct sockaddr_in6 saddr6 = {0};
+	struct sockaddr_in6 daddr6 = {0};
+	struct sockaddr *saddr, *daddr;
+	int fd, sz;
+
+	switch (family) {
+	case AF_INET:
+		saddr4.sin_family = AF_INET;
+		saddr4.sin_addr.s_addr = htonl(INADDR_ANY);
+		saddr4.sin_port = 0;
+
+		daddr4.sin_family = AF_INET;
+		if (!inet_pton(family, IP4_ADDR, &daddr4.sin_addr.s_addr))
+			error(1, errno, "inet_pton failed: %s", IP4_ADDR);
+		daddr4.sin_port = htons(PORT);
+
+		sz = sizeof(saddr4);
+		saddr = (struct sockaddr *)&saddr4;
+		daddr = (struct sockaddr *)&daddr4;
+	break;
+	case AF_INET6:
+		saddr6.sin6_family = AF_INET6;
+		saddr6.sin6_addr = in6addr_any;
+
+		daddr6.sin6_family = AF_INET6;
+		if (!inet_pton(family, IP6_ADDR, &daddr6.sin6_addr))
+			error(1, errno, "inet_pton failed: %s", IP6_ADDR);
+		daddr6.sin6_port = htons(PORT);
+
+		sz = sizeof(saddr6);
+		saddr = (struct sockaddr *)&saddr6;
+		daddr = (struct sockaddr *)&daddr6;
+	break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+		/* clang does not recognize error() above as terminating
+		 * the program, so it complains that saddr, daddr, sz are
+		 * not initialized when this code path is taken. Silence it.
+		 */
+		return -1;
+	}
+
+	fd = socket(family, proto, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+
+	if (bind(fd, saddr, sz))
+		error(1, errno, "failed to bind send socket");
+
+	if (connect(fd, daddr, sz))
+		error(1, errno, "failed to connect send socket");
+
+	if (send(fd, "a", 1, 0) < 0)
+		error(1, errno, "failed to send message");
+
+	return fd;
+}
+
+static int receive_once(int epfd, int proto)
+{
+	struct epoll_event ev;
+	int i, fd;
+	char buf[8];
+
+	i = epoll_wait(epfd, &ev, 1, 3);
+	if (i < 0)
+		error(1, errno, "epoll_wait failed");
+
+	if (proto == SOCK_STREAM) {
+		fd = accept(ev.data.fd, NULL, NULL);
+		if (fd < 0)
+			error(1, errno, "failed to accept");
+		i = recv(fd, buf, sizeof(buf), 0);
+		close(fd);
+	} else {
+		i = recv(ev.data.fd, buf, sizeof(buf), 0);
+	}
+
+	if (i < 0)
+		error(1, errno, "failed to recv");
+
+	return ev.data.fd;
+}
+
+static void test(int *rcv_fds, int count, int family, int proto, int fd)
+{
+	struct epoll_event ev;
+	int epfd, i, send_fd, recv_fd;
+
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+
+	ev.events = EPOLLIN;
+	for (i = 0; i < count; ++i) {
+		ev.data.fd = rcv_fds[i];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+			error(1, errno, "failed to register sock epoll");
+	}
+
+	send_fd = connect_and_send(family, proto);
+
+	recv_fd = receive_once(epfd, proto);
+	if (recv_fd != fd)
+		error(1, 0, "received on an unexpected socket");
+
+	close(send_fd);
+	close(epfd);
+}
+
+
+static void run_one_test(int fam_send, int fam_rcv, int proto,
+			 const char *addr_str)
+{
+	/* Below we test that a socket listening on a specific address
+	 * is always selected in preference over a socket listening
+	 * on addr_any. Bugs where this is not the case often result
+	 * in sockets created first or last to get picked. So below
+	 * we make sure that there are always addr_any sockets created
+	 * before and after a specific socket is created.
+	 */
+	int rcv_fds[10], i;
+
+	build_rcv_fd(AF_INET, proto, rcv_fds, 2, NULL);
+	build_rcv_fd(AF_INET6, proto, rcv_fds + 2, 2, NULL);
+	build_rcv_fd(fam_rcv, proto, rcv_fds + 4, 1, addr_str);
+	build_rcv_fd(AF_INET, proto, rcv_fds + 5, 2, NULL);
+	build_rcv_fd(AF_INET6, proto, rcv_fds + 7, 2, NULL);
+	test(rcv_fds, 9, fam_send, proto, rcv_fds[4]);
+	for (i = 0; i < 9; ++i)
+		close(rcv_fds[i]);
+	fprintf(stderr, "pass\n");
+}
+
+static void test_proto(int proto, const char *proto_str)
+{
+	fprintf(stderr, "%s IPv4 ... ", proto_str);
+	run_one_test(AF_INET, AF_INET, proto, IP4_ADDR);
+
+	fprintf(stderr, "%s IPv6 ... ", proto_str);
+	run_one_test(AF_INET6, AF_INET6, proto, IP6_ADDR);
+
+	fprintf(stderr, "%s IPv4 mapped to IPv6 ... ", proto_str);
+	run_one_test(AF_INET, AF_INET6, proto, IP4_MAPPED6);
+}
+
+int main(void)
+{
+	test_proto(SOCK_DGRAM, "UDP");
+	test_proto(SOCK_STREAM, "TCP");
+
+	fprintf(stderr, "SUCCESS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_addr_any.sh b/tools/testing/selftests/net/reuseport_addr_any.sh
new file mode 100755
index 000000000000..104592f62ad4
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_addr_any.sh
@@ -0,0 +1,4 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+./in_netns.sh ./reuseport_addr_any
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c
new file mode 100644
index 000000000000..b6634d6da3d6
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf.c
@@ -0,0 +1,639 @@
+/*
+ * Test functionality of BPF filters for SO_REUSEPORT.  The tests below will use
+ * a BPF program (both classic and extended) to read the first word from an
+ * incoming packet (expected to be in network byte-order), calculate a modulus
+ * of that number, and then dispatch the packet to the Nth socket using the
+ * result.  These tests are run for each supported address family and protocol.
+ * Additionally, a few edge cases in the implementation are tested.
+ */
+
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <linux/bpf.h>
+#include <linux/filter.h>
+#include <linux/unistd.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/resource.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+struct test_params {
+	int recv_family;
+	int send_family;
+	int protocol;
+	size_t recv_socks;
+	uint16_t recv_port;
+	uint16_t send_port_min;
+};
+
+static size_t sockaddr_size(void)
+{
+	return sizeof(struct sockaddr_storage);
+}
+
+static struct sockaddr *new_any_sockaddr(int family, uint16_t port)
+{
+	struct sockaddr_storage *addr;
+	struct sockaddr_in *addr4;
+	struct sockaddr_in6 *addr6;
+
+	addr = malloc(sizeof(struct sockaddr_storage));
+	memset(addr, 0, sizeof(struct sockaddr_storage));
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)addr;
+		addr4->sin_family = AF_INET;
+		addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		addr4->sin_port = htons(port);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)addr;
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_addr = in6addr_any;
+		addr6->sin6_port = htons(port);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+	return (struct sockaddr *)addr;
+}
+
+static struct sockaddr *new_loopback_sockaddr(int family, uint16_t port)
+{
+	struct sockaddr *addr = new_any_sockaddr(family, port);
+	struct sockaddr_in *addr4;
+	struct sockaddr_in6 *addr6;
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)addr;
+		addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)addr;
+		addr6->sin6_addr = in6addr_loopback;
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+	return addr;
+}
+
+static void attach_ebpf(int fd, uint16_t mod)
+{
+	static char bpf_log_buf[65536];
+	static const char bpf_license[] = "GPL";
+
+	int bpf_fd;
+	const struct bpf_insn prog[] = {
+		/* BPF_MOV64_REG(BPF_REG_6, BPF_REG_1) */
+		{ BPF_ALU64 | BPF_MOV | BPF_X, BPF_REG_6, BPF_REG_1, 0, 0 },
+		/* BPF_LD_ABS(BPF_W, 0) R0 = (uint32_t)skb[0] */
+		{ BPF_LD | BPF_ABS | BPF_W, 0, 0, 0, 0 },
+		/* BPF_ALU64_IMM(BPF_MOD, BPF_REG_0, mod) */
+		{ BPF_ALU64 | BPF_MOD | BPF_K, BPF_REG_0, 0, 0, mod },
+		/* BPF_EXIT_INSN() */
+		{ BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+	};
+	union bpf_attr attr;
+
+	memset(&attr, 0, sizeof(attr));
+	attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+	attr.insn_cnt = ARRAY_SIZE(prog);
+	attr.insns = (unsigned long) &prog;
+	attr.license = (unsigned long) &bpf_license;
+	attr.log_buf = (unsigned long) &bpf_log_buf;
+	attr.log_size = sizeof(bpf_log_buf);
+	attr.log_level = 1;
+	attr.kern_version = 0;
+
+	bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+	if (bpf_fd < 0)
+		error(1, errno, "ebpf error. log:\n%s\n", bpf_log_buf);
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+			sizeof(bpf_fd)))
+		error(1, errno, "failed to set SO_ATTACH_REUSEPORT_EBPF");
+
+	close(bpf_fd);
+}
+
+static void attach_cbpf(int fd, uint16_t mod)
+{
+	struct sock_filter code[] = {
+		/* A = (uint32_t)skb[0] */
+		{ BPF_LD  | BPF_W | BPF_ABS, 0, 0, 0 },
+		/* A = A % mod */
+		{ BPF_ALU | BPF_MOD, 0, 0, mod },
+		/* return A */
+		{ BPF_RET | BPF_A, 0, 0, 0 },
+	};
+	struct sock_fprog p = {
+		.len = ARRAY_SIZE(code),
+		.filter = code,
+	};
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &p, sizeof(p)))
+		error(1, errno, "failed to set SO_ATTACH_REUSEPORT_CBPF");
+}
+
+static void build_recv_group(const struct test_params p, int fd[], uint16_t mod,
+			     void (*attach_bpf)(int, uint16_t))
+{
+	struct sockaddr * const addr =
+		new_any_sockaddr(p.recv_family, p.recv_port);
+	int i, opt;
+
+	for (i = 0; i < p.recv_socks; ++i) {
+		fd[i] = socket(p.recv_family, p.protocol, 0);
+		if (fd[i] < 0)
+			error(1, errno, "failed to create recv %d", i);
+
+		opt = 1;
+		if (setsockopt(fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT on %d", i);
+
+		if (i == 0)
+			attach_bpf(fd[i], mod);
+
+		if (bind(fd[i], addr, sockaddr_size()))
+			error(1, errno, "failed to bind recv socket %d", i);
+
+		if (p.protocol == SOCK_STREAM) {
+			opt = 4;
+			if (setsockopt(fd[i], SOL_TCP, TCP_FASTOPEN, &opt,
+				       sizeof(opt)))
+				error(1, errno,
+				      "failed to set TCP_FASTOPEN on %d", i);
+			if (listen(fd[i], p.recv_socks * 10))
+				error(1, errno, "failed to listen on socket");
+		}
+	}
+	free(addr);
+}
+
+static void send_from(struct test_params p, uint16_t sport, char *buf,
+		      size_t len)
+{
+	struct sockaddr * const saddr = new_any_sockaddr(p.send_family, sport);
+	struct sockaddr * const daddr =
+		new_loopback_sockaddr(p.send_family, p.recv_port);
+	const int fd = socket(p.send_family, p.protocol, 0), one = 1;
+
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)))
+		error(1, errno, "failed to set reuseaddr");
+
+	if (bind(fd, saddr, sockaddr_size()))
+		error(1, errno, "failed to bind send socket");
+
+	if (sendto(fd, buf, len, MSG_FASTOPEN, daddr, sockaddr_size()) < 0)
+		error(1, errno, "failed to send message");
+
+	close(fd);
+	free(saddr);
+	free(daddr);
+}
+
+static void test_recv_order(const struct test_params p, int fd[], int mod)
+{
+	char recv_buf[8], send_buf[8];
+	struct msghdr msg;
+	struct iovec recv_io = { recv_buf, 8 };
+	struct epoll_event ev;
+	int epfd, conn, i, sport, expected;
+	uint32_t data, ndata;
+
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+	for (i = 0; i < p.recv_socks; ++i) {
+		ev.events = EPOLLIN;
+		ev.data.fd = fd[i];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd[i], &ev))
+			error(1, errno, "failed to register sock %d epoll", i);
+	}
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_iov = &recv_io;
+	msg.msg_iovlen = 1;
+
+	for (data = 0; data < p.recv_socks * 2; ++data) {
+		sport = p.send_port_min + data;
+		ndata = htonl(data);
+		memcpy(send_buf, &ndata, sizeof(ndata));
+		send_from(p, sport, send_buf, sizeof(ndata));
+
+		i = epoll_wait(epfd, &ev, 1, -1);
+		if (i < 0)
+			error(1, errno, "epoll wait failed");
+
+		if (p.protocol == SOCK_STREAM) {
+			conn = accept(ev.data.fd, NULL, NULL);
+			if (conn < 0)
+				error(1, errno, "error accepting");
+			i = recvmsg(conn, &msg, 0);
+			close(conn);
+		} else {
+			i = recvmsg(ev.data.fd, &msg, 0);
+		}
+		if (i < 0)
+			error(1, errno, "recvmsg error");
+		if (i != sizeof(ndata))
+			error(1, 0, "expected size %zd got %d",
+			      sizeof(ndata), i);
+
+		for (i = 0; i < p.recv_socks; ++i)
+			if (ev.data.fd == fd[i])
+				break;
+		memcpy(&ndata, recv_buf, sizeof(ndata));
+		fprintf(stderr, "Socket %d: %d\n", i, ntohl(ndata));
+
+		expected = (sport % mod);
+		if (i != expected)
+			error(1, 0, "expected socket %d", expected);
+	}
+}
+
+static void test_reuseport_ebpf(struct test_params p)
+{
+	int i, fd[p.recv_socks];
+
+	fprintf(stderr, "Testing EBPF mod %zd...\n", p.recv_socks);
+	build_recv_group(p, fd, p.recv_socks, attach_ebpf);
+	test_recv_order(p, fd, p.recv_socks);
+
+	p.send_port_min += p.recv_socks * 2;
+	fprintf(stderr, "Reprograming, testing mod %zd...\n", p.recv_socks / 2);
+	attach_ebpf(fd[0], p.recv_socks / 2);
+	test_recv_order(p, fd, p.recv_socks / 2);
+
+	for (i = 0; i < p.recv_socks; ++i)
+		close(fd[i]);
+}
+
+static void test_reuseport_cbpf(struct test_params p)
+{
+	int i, fd[p.recv_socks];
+
+	fprintf(stderr, "Testing CBPF mod %zd...\n", p.recv_socks);
+	build_recv_group(p, fd, p.recv_socks, attach_cbpf);
+	test_recv_order(p, fd, p.recv_socks);
+
+	p.send_port_min += p.recv_socks * 2;
+	fprintf(stderr, "Reprograming, testing mod %zd...\n", p.recv_socks / 2);
+	attach_cbpf(fd[0], p.recv_socks / 2);
+	test_recv_order(p, fd, p.recv_socks / 2);
+
+	for (i = 0; i < p.recv_socks; ++i)
+		close(fd[i]);
+}
+
+static void test_extra_filter(const struct test_params p)
+{
+	struct sockaddr * const addr =
+		new_any_sockaddr(p.recv_family, p.recv_port);
+	int fd1, fd2, opt;
+
+	fprintf(stderr, "Testing too many filters...\n");
+	fd1 = socket(p.recv_family, p.protocol, 0);
+	if (fd1 < 0)
+		error(1, errno, "failed to create socket 1");
+	fd2 = socket(p.recv_family, p.protocol, 0);
+	if (fd2 < 0)
+		error(1, errno, "failed to create socket 2");
+
+	opt = 1;
+	if (setsockopt(fd1, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+		error(1, errno, "failed to set SO_REUSEPORT on socket 1");
+	if (setsockopt(fd2, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+		error(1, errno, "failed to set SO_REUSEPORT on socket 2");
+
+	attach_ebpf(fd1, 10);
+	attach_ebpf(fd2, 10);
+
+	if (bind(fd1, addr, sockaddr_size()))
+		error(1, errno, "failed to bind recv socket 1");
+
+	if (!bind(fd2, addr, sockaddr_size()) || errno != EADDRINUSE)
+		error(1, errno, "bind socket 2 should fail with EADDRINUSE");
+
+	free(addr);
+}
+
+static void test_filter_no_reuseport(const struct test_params p)
+{
+	struct sockaddr * const addr =
+		new_any_sockaddr(p.recv_family, p.recv_port);
+	const char bpf_license[] = "GPL";
+	struct bpf_insn ecode[] = {
+		{ BPF_ALU64 | BPF_MOV | BPF_K, BPF_REG_0, 0, 0, 10 },
+		{ BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+	};
+	struct sock_filter ccode[] = {{ BPF_RET | BPF_A, 0, 0, 0 }};
+	union bpf_attr eprog;
+	struct sock_fprog cprog;
+	int fd, bpf_fd;
+
+	fprintf(stderr, "Testing filters on non-SO_REUSEPORT socket...\n");
+
+	memset(&eprog, 0, sizeof(eprog));
+	eprog.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+	eprog.insn_cnt = ARRAY_SIZE(ecode);
+	eprog.insns = (unsigned long) &ecode;
+	eprog.license = (unsigned long) &bpf_license;
+	eprog.kern_version = 0;
+
+	memset(&cprog, 0, sizeof(cprog));
+	cprog.len = ARRAY_SIZE(ccode);
+	cprog.filter = ccode;
+
+
+	bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &eprog, sizeof(eprog));
+	if (bpf_fd < 0)
+		error(1, errno, "ebpf error");
+	fd = socket(p.recv_family, p.protocol, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create socket 1");
+
+	if (bind(fd, addr, sockaddr_size()))
+		error(1, errno, "failed to bind recv socket 1");
+
+	errno = 0;
+	if (!setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+			sizeof(bpf_fd)) || errno != EINVAL)
+		error(1, errno, "setsockopt should have returned EINVAL");
+
+	errno = 0;
+	if (!setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &cprog,
+		       sizeof(cprog)) || errno != EINVAL)
+		error(1, errno, "setsockopt should have returned EINVAL");
+
+	free(addr);
+}
+
+static void test_filter_without_bind(void)
+{
+	int fd1, fd2, opt = 1;
+
+	fprintf(stderr, "Testing filter add without bind...\n");
+	fd1 = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd1 < 0)
+		error(1, errno, "failed to create socket 1");
+	fd2 = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd2 < 0)
+		error(1, errno, "failed to create socket 2");
+	if (setsockopt(fd1, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+		error(1, errno, "failed to set SO_REUSEPORT on socket 1");
+	if (setsockopt(fd2, SOL_SOCKET, SO_REUSEPORT, &opt, sizeof(opt)))
+		error(1, errno, "failed to set SO_REUSEPORT on socket 2");
+
+	attach_ebpf(fd1, 10);
+	attach_cbpf(fd2, 10);
+
+	close(fd1);
+	close(fd2);
+}
+
+void enable_fastopen(void)
+{
+	int fd = open("/proc/sys/net/ipv4/tcp_fastopen", 0);
+	int rw_mask = 3;  /* bit 1: client side; bit-2 server side */
+	int val, size;
+	char buf[16];
+
+	if (fd < 0)
+		error(1, errno, "Unable to open tcp_fastopen sysctl");
+	if (read(fd, buf, sizeof(buf)) <= 0)
+		error(1, errno, "Unable to read tcp_fastopen sysctl");
+	val = atoi(buf);
+	close(fd);
+
+	if ((val & rw_mask) != rw_mask) {
+		fd = open("/proc/sys/net/ipv4/tcp_fastopen", O_RDWR);
+		if (fd < 0)
+			error(1, errno,
+			      "Unable to open tcp_fastopen sysctl for writing");
+		val |= rw_mask;
+		size = snprintf(buf, 16, "%d", val);
+		if (write(fd, buf, size) <= 0)
+			error(1, errno, "Unable to write tcp_fastopen sysctl");
+		close(fd);
+	}
+}
+
+static struct rlimit rlim_old;
+
+static  __attribute__((constructor)) void main_ctor(void)
+{
+	getrlimit(RLIMIT_MEMLOCK, &rlim_old);
+
+	if (rlim_old.rlim_cur != RLIM_INFINITY) {
+		struct rlimit rlim_new;
+
+		rlim_new.rlim_cur = rlim_old.rlim_cur + (1UL << 20);
+		rlim_new.rlim_max = rlim_old.rlim_max + (1UL << 20);
+		setrlimit(RLIMIT_MEMLOCK, &rlim_new);
+	}
+}
+
+static __attribute__((destructor)) void main_dtor(void)
+{
+	setrlimit(RLIMIT_MEMLOCK, &rlim_old);
+}
+
+int main(void)
+{
+	fprintf(stderr, "---- IPv4 UDP ----\n");
+	/* NOTE: UDP socket lookups traverse a different code path when there
+	 * are > 10 sockets in a group.  Run the bpf test through both paths.
+	 */
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8000,
+		.send_port_min = 9000});
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8000,
+		.send_port_min = 9000});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8001,
+		.send_port_min = 9020});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8001,
+		.send_port_min = 9020});
+	test_extra_filter((struct test_params) {
+		.recv_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_port = 8002});
+	test_filter_no_reuseport((struct test_params) {
+		.recv_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_port = 8008});
+
+	fprintf(stderr, "---- IPv6 UDP ----\n");
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8003,
+		.send_port_min = 9040});
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8003,
+		.send_port_min = 9040});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8004,
+		.send_port_min = 9060});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8004,
+		.send_port_min = 9060});
+	test_extra_filter((struct test_params) {
+		.recv_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_port = 8005});
+	test_filter_no_reuseport((struct test_params) {
+		.recv_family = AF_INET6,
+		.protocol = SOCK_DGRAM,
+		.recv_port = 8009});
+
+	fprintf(stderr, "---- IPv6 UDP w/ mapped IPv4 ----\n");
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8006,
+		.send_port_min = 9080});
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8006,
+		.send_port_min = 9080});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 10,
+		.recv_port = 8007,
+		.send_port_min = 9100});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_DGRAM,
+		.recv_socks = 20,
+		.recv_port = 8007,
+		.send_port_min = 9100});
+
+	/* TCP fastopen is required for the TCP tests */
+	enable_fastopen();
+	fprintf(stderr, "---- IPv4 TCP ----\n");
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8008,
+		.send_port_min = 9120});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET,
+		.send_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8009,
+		.send_port_min = 9160});
+	test_extra_filter((struct test_params) {
+		.recv_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_port = 8010});
+	test_filter_no_reuseport((struct test_params) {
+		.recv_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_port = 8011});
+
+	fprintf(stderr, "---- IPv6 TCP ----\n");
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8012,
+		.send_port_min = 9200});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET6,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8013,
+		.send_port_min = 9240});
+	test_extra_filter((struct test_params) {
+		.recv_family = AF_INET6,
+		.protocol = SOCK_STREAM,
+		.recv_port = 8014});
+	test_filter_no_reuseport((struct test_params) {
+		.recv_family = AF_INET6,
+		.protocol = SOCK_STREAM,
+		.recv_port = 8015});
+
+	fprintf(stderr, "---- IPv6 TCP w/ mapped IPv4 ----\n");
+	test_reuseport_ebpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8016,
+		.send_port_min = 9320});
+	test_reuseport_cbpf((struct test_params) {
+		.recv_family = AF_INET6,
+		.send_family = AF_INET,
+		.protocol = SOCK_STREAM,
+		.recv_socks = 10,
+		.recv_port = 8017,
+		.send_port_min = 9360});
+
+	test_filter_without_bind();
+
+	fprintf(stderr, "SUCCESS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_bpf_cpu.c b/tools/testing/selftests/net/reuseport_bpf_cpu.c
new file mode 100644
index 000000000000..2d646174729f
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf_cpu.c
@@ -0,0 +1,259 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test functionality of BPF filters with SO_REUSEPORT.  This program creates
+ * an SO_REUSEPORT receiver group containing one socket per CPU core. It then
+ * creates a BPF program that will select a socket from this group based
+ * on the core id that receives the packet.  The sending code artificially
+ * moves itself to run on different core ids and sends one message from
+ * each core.  Since these packets are delivered over loopback, they should
+ * arrive on the same core that sent them.  The receiving code then ensures
+ * that the packet was received on the socket for the corresponding core id.
+ * This entire process is done for several different core id permutations
+ * and for each IPv4/IPv6 and TCP/UDP combination.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/filter.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static const int PORT = 8888;
+
+static void build_rcv_group(int *rcv_fd, size_t len, int family, int proto)
+{
+	struct sockaddr_storage addr;
+	struct sockaddr_in  *addr4;
+	struct sockaddr_in6 *addr6;
+	size_t i;
+	int opt;
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)&addr;
+		addr4->sin_family = AF_INET;
+		addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		addr4->sin_port = htons(PORT);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)&addr;
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_addr = in6addr_any;
+		addr6->sin6_port = htons(PORT);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+
+	for (i = 0; i < len; ++i) {
+		rcv_fd[i] = socket(family, proto, 0);
+		if (rcv_fd[i] < 0)
+			error(1, errno, "failed to create receive socket");
+
+		opt = 1;
+		if (setsockopt(rcv_fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT");
+
+		if (bind(rcv_fd[i], (struct sockaddr *)&addr, sizeof(addr)))
+			error(1, errno, "failed to bind receive socket");
+
+		if (proto == SOCK_STREAM && listen(rcv_fd[i], len * 10))
+			error(1, errno, "failed to listen on receive port");
+	}
+}
+
+static void attach_bpf(int fd)
+{
+	struct sock_filter code[] = {
+		/* A = raw_smp_processor_id() */
+		{ BPF_LD  | BPF_W | BPF_ABS, 0, 0, SKF_AD_OFF + SKF_AD_CPU },
+		/* return A */
+		{ BPF_RET | BPF_A, 0, 0, 0 },
+	};
+	struct sock_fprog p = {
+		.len = 2,
+		.filter = code,
+	};
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_CBPF, &p, sizeof(p)))
+		error(1, errno, "failed to set SO_ATTACH_REUSEPORT_CBPF");
+}
+
+static void send_from_cpu(int cpu_id, int family, int proto)
+{
+	struct sockaddr_storage saddr, daddr;
+	struct sockaddr_in  *saddr4, *daddr4;
+	struct sockaddr_in6 *saddr6, *daddr6;
+	cpu_set_t cpu_set;
+	int fd;
+
+	switch (family) {
+	case AF_INET:
+		saddr4 = (struct sockaddr_in *)&saddr;
+		saddr4->sin_family = AF_INET;
+		saddr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		saddr4->sin_port = 0;
+
+		daddr4 = (struct sockaddr_in *)&daddr;
+		daddr4->sin_family = AF_INET;
+		daddr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		daddr4->sin_port = htons(PORT);
+		break;
+	case AF_INET6:
+		saddr6 = (struct sockaddr_in6 *)&saddr;
+		saddr6->sin6_family = AF_INET6;
+		saddr6->sin6_addr = in6addr_any;
+		saddr6->sin6_port = 0;
+
+		daddr6 = (struct sockaddr_in6 *)&daddr;
+		daddr6->sin6_family = AF_INET6;
+		daddr6->sin6_addr = in6addr_loopback;
+		daddr6->sin6_port = htons(PORT);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+
+	memset(&cpu_set, 0, sizeof(cpu_set));
+	CPU_SET(cpu_id, &cpu_set);
+	if (sched_setaffinity(0, sizeof(cpu_set), &cpu_set) < 0)
+		error(1, errno, "failed to pin to cpu");
+
+	fd = socket(family, proto, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+
+	if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+		error(1, errno, "failed to bind send socket");
+
+	if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+		error(1, errno, "failed to connect send socket");
+
+	if (send(fd, "a", 1, 0) < 0)
+		error(1, errno, "failed to send message");
+
+	close(fd);
+}
+
+static
+void receive_on_cpu(int *rcv_fd, int len, int epfd, int cpu_id, int proto)
+{
+	struct epoll_event ev;
+	int i, fd;
+	char buf[8];
+
+	i = epoll_wait(epfd, &ev, 1, -1);
+	if (i < 0)
+		error(1, errno, "epoll_wait failed");
+
+	if (proto == SOCK_STREAM) {
+		fd = accept(ev.data.fd, NULL, NULL);
+		if (fd < 0)
+			error(1, errno, "failed to accept");
+		i = recv(fd, buf, sizeof(buf), 0);
+		close(fd);
+	} else {
+		i = recv(ev.data.fd, buf, sizeof(buf), 0);
+	}
+
+	if (i < 0)
+		error(1, errno, "failed to recv");
+
+	for (i = 0; i < len; ++i)
+		if (ev.data.fd == rcv_fd[i])
+			break;
+	if (i == len)
+		error(1, 0, "failed to find socket");
+	fprintf(stderr, "send cpu %d, receive socket %d\n", cpu_id, i);
+	if (cpu_id != i)
+		error(1, 0, "cpu id/receive socket mismatch");
+}
+
+static void test(int *rcv_fd, int len, int family, int proto)
+{
+	struct epoll_event ev;
+	int epfd, cpu;
+
+	build_rcv_group(rcv_fd, len, family, proto);
+	attach_bpf(rcv_fd[0]);
+
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+	for (cpu = 0; cpu < len; ++cpu) {
+		ev.events = EPOLLIN;
+		ev.data.fd = rcv_fd[cpu];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fd[cpu], &ev))
+			error(1, errno, "failed to register sock epoll");
+	}
+
+	/* Forward iterate */
+	for (cpu = 0; cpu < len; ++cpu) {
+		send_from_cpu(cpu, family, proto);
+		receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+	}
+
+	/* Reverse iterate */
+	for (cpu = len - 1; cpu >= 0; --cpu) {
+		send_from_cpu(cpu, family, proto);
+		receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+	}
+
+	/* Even cores */
+	for (cpu = 0; cpu < len; cpu += 2) {
+		send_from_cpu(cpu, family, proto);
+		receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+	}
+
+	/* Odd cores */
+	for (cpu = 1; cpu < len; cpu += 2) {
+		send_from_cpu(cpu, family, proto);
+		receive_on_cpu(rcv_fd, len, epfd, cpu, proto);
+	}
+
+	close(epfd);
+	for (cpu = 0; cpu < len; ++cpu)
+		close(rcv_fd[cpu]);
+}
+
+int main(void)
+{
+	int *rcv_fd, cpus;
+
+	cpus = sysconf(_SC_NPROCESSORS_ONLN);
+	if (cpus <= 0)
+		error(1, errno, "failed counting cpus");
+
+	rcv_fd = calloc(cpus, sizeof(int));
+	if (!rcv_fd)
+		error(1, 0, "failed to allocate array");
+
+	fprintf(stderr, "---- IPv4 UDP ----\n");
+	test(rcv_fd, cpus, AF_INET, SOCK_DGRAM);
+
+	fprintf(stderr, "---- IPv6 UDP ----\n");
+	test(rcv_fd, cpus, AF_INET6, SOCK_DGRAM);
+
+	fprintf(stderr, "---- IPv4 TCP ----\n");
+	test(rcv_fd, cpus, AF_INET, SOCK_STREAM);
+
+	fprintf(stderr, "---- IPv6 TCP ----\n");
+	test(rcv_fd, cpus, AF_INET6, SOCK_STREAM);
+
+	free(rcv_fd);
+
+	fprintf(stderr, "SUCCESS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c
new file mode 100644
index 000000000000..2ffd957ffb15
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_bpf_numa.c
@@ -0,0 +1,262 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test functionality of BPF filters with SO_REUSEPORT. Same test as
+ * in reuseport_bpf_cpu, only as one socket per NUMA node.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/filter.h>
+#include <linux/bpf.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+#include <numa.h>
+
+#include "kselftest.h"
+
+static const int PORT = 8888;
+
+static void build_rcv_group(int *rcv_fd, size_t len, int family, int proto)
+{
+	struct sockaddr_storage addr;
+	struct sockaddr_in  *addr4;
+	struct sockaddr_in6 *addr6;
+	size_t i;
+	int opt;
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)&addr;
+		addr4->sin_family = AF_INET;
+		addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		addr4->sin_port = htons(PORT);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)&addr;
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_addr = in6addr_any;
+		addr6->sin6_port = htons(PORT);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+
+	for (i = 0; i < len; ++i) {
+		rcv_fd[i] = socket(family, proto, 0);
+		if (rcv_fd[i] < 0)
+			error(1, errno, "failed to create receive socket");
+
+		opt = 1;
+		if (setsockopt(rcv_fd[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT");
+
+		if (bind(rcv_fd[i], (struct sockaddr *)&addr, sizeof(addr)))
+			error(1, errno, "failed to bind receive socket");
+
+		if (proto == SOCK_STREAM && listen(rcv_fd[i], len * 10))
+			error(1, errno, "failed to listen on receive port");
+	}
+}
+
+static void attach_bpf(int fd)
+{
+	static char bpf_log_buf[65536];
+	static const char bpf_license[] = "";
+
+	int bpf_fd;
+	const struct bpf_insn prog[] = {
+		/* R0 = bpf_get_numa_node_id() */
+		{ BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_get_numa_node_id },
+		/* return R0 */
+		{ BPF_JMP | BPF_EXIT, 0, 0, 0, 0 }
+	};
+	union bpf_attr attr;
+
+	memset(&attr, 0, sizeof(attr));
+	attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
+	attr.insn_cnt = ARRAY_SIZE(prog);
+	attr.insns = (unsigned long) &prog;
+	attr.license = (unsigned long) &bpf_license;
+	attr.log_buf = (unsigned long) &bpf_log_buf;
+	attr.log_size = sizeof(bpf_log_buf);
+	attr.log_level = 1;
+
+	bpf_fd = syscall(__NR_bpf, BPF_PROG_LOAD, &attr, sizeof(attr));
+	if (bpf_fd < 0)
+		error(1, errno, "ebpf error. log:\n%s\n", bpf_log_buf);
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_REUSEPORT_EBPF, &bpf_fd,
+			sizeof(bpf_fd)))
+		error(1, errno, "failed to set SO_ATTACH_REUSEPORT_EBPF");
+
+	close(bpf_fd);
+}
+
+static void send_from_node(int node_id, int family, int proto)
+{
+	struct sockaddr_storage saddr, daddr;
+	struct sockaddr_in  *saddr4, *daddr4;
+	struct sockaddr_in6 *saddr6, *daddr6;
+	int fd;
+
+	switch (family) {
+	case AF_INET:
+		saddr4 = (struct sockaddr_in *)&saddr;
+		saddr4->sin_family = AF_INET;
+		saddr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		saddr4->sin_port = 0;
+
+		daddr4 = (struct sockaddr_in *)&daddr;
+		daddr4->sin_family = AF_INET;
+		daddr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		daddr4->sin_port = htons(PORT);
+		break;
+	case AF_INET6:
+		saddr6 = (struct sockaddr_in6 *)&saddr;
+		saddr6->sin6_family = AF_INET6;
+		saddr6->sin6_addr = in6addr_any;
+		saddr6->sin6_port = 0;
+
+		daddr6 = (struct sockaddr_in6 *)&daddr;
+		daddr6->sin6_family = AF_INET6;
+		daddr6->sin6_addr = in6addr_loopback;
+		daddr6->sin6_port = htons(PORT);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+
+	if (numa_run_on_node(node_id) < 0)
+		error(1, errno, "failed to pin to node");
+
+	fd = socket(family, proto, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+
+	if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+		error(1, errno, "failed to bind send socket");
+
+	if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+		error(1, errno, "failed to connect send socket");
+
+	if (send(fd, "a", 1, 0) < 0)
+		error(1, errno, "failed to send message");
+
+	close(fd);
+}
+
+static
+void receive_on_node(int *rcv_fd, int len, int epfd, int node_id, int proto)
+{
+	struct epoll_event ev;
+	int i, fd;
+	char buf[8];
+
+	i = epoll_wait(epfd, &ev, 1, -1);
+	if (i < 0)
+		error(1, errno, "epoll_wait failed");
+
+	if (proto == SOCK_STREAM) {
+		fd = accept(ev.data.fd, NULL, NULL);
+		if (fd < 0)
+			error(1, errno, "failed to accept");
+		i = recv(fd, buf, sizeof(buf), 0);
+		close(fd);
+	} else {
+		i = recv(ev.data.fd, buf, sizeof(buf), 0);
+	}
+
+	if (i < 0)
+		error(1, errno, "failed to recv");
+
+	for (i = 0; i < len; ++i)
+		if (ev.data.fd == rcv_fd[i])
+			break;
+	if (i == len)
+		error(1, 0, "failed to find socket");
+	fprintf(stderr, "send node %d, receive socket %d\n", node_id, i);
+	if (node_id != i)
+		error(1, 0, "node id/receive socket mismatch");
+}
+
+static void test(int *rcv_fd, int len, int family, int proto)
+{
+	struct epoll_event ev;
+	int epfd, node;
+
+	build_rcv_group(rcv_fd, len, family, proto);
+	attach_bpf(rcv_fd[0]);
+
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+	for (node = 0; node < len; ++node) {
+		ev.events = EPOLLIN;
+		ev.data.fd = rcv_fd[node];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fd[node], &ev))
+			error(1, errno, "failed to register sock epoll");
+	}
+
+	/* Forward iterate */
+	for (node = 0; node < len; ++node) {
+		if (!numa_bitmask_isbitset(numa_nodes_ptr, node))
+			continue;
+		send_from_node(node, family, proto);
+		receive_on_node(rcv_fd, len, epfd, node, proto);
+	}
+
+	/* Reverse iterate */
+	for (node = len - 1; node >= 0; --node) {
+		if (!numa_bitmask_isbitset(numa_nodes_ptr, node))
+			continue;
+		send_from_node(node, family, proto);
+		receive_on_node(rcv_fd, len, epfd, node, proto);
+	}
+
+	close(epfd);
+	for (node = 0; node < len; ++node)
+		close(rcv_fd[node]);
+}
+
+int main(void)
+{
+	int *rcv_fd, nodes;
+
+	if (numa_available() < 0)
+		ksft_exit_skip("no numa api support\n");
+
+	nodes = numa_max_node() + 1;
+
+	rcv_fd = calloc(nodes, sizeof(int));
+	if (!rcv_fd)
+		error(1, 0, "failed to allocate array");
+
+	fprintf(stderr, "---- IPv4 UDP ----\n");
+	test(rcv_fd, nodes, AF_INET, SOCK_DGRAM);
+
+	fprintf(stderr, "---- IPv6 UDP ----\n");
+	test(rcv_fd, nodes, AF_INET6, SOCK_DGRAM);
+
+	fprintf(stderr, "---- IPv4 TCP ----\n");
+	test(rcv_fd, nodes, AF_INET, SOCK_STREAM);
+
+	fprintf(stderr, "---- IPv6 TCP ----\n");
+	test(rcv_fd, nodes, AF_INET6, SOCK_STREAM);
+
+	free(rcv_fd);
+
+	fprintf(stderr, "SUCCESS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_dualstack.c b/tools/testing/selftests/net/reuseport_dualstack.c
new file mode 100644
index 000000000000..fb7a59ed759e
--- /dev/null
+++ b/tools/testing/selftests/net/reuseport_dualstack.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * It is possible to use SO_REUSEPORT to open multiple sockets bound to
+ * equivalent local addresses using AF_INET and AF_INET6 at the same time.  If
+ * the AF_INET6 socket has IPV6_V6ONLY set, it's clear which socket should
+ * receive a given incoming packet.  However, when it is not set, incoming v4
+ * packets should prefer the AF_INET socket(s).  This behavior was defined with
+ * the original SO_REUSEPORT implementation, but broke with
+ * e32ea7e74727 ("soreuseport: fast reuseport UDP socket selection")
+ * This test creates these mixed AF_INET/AF_INET6 sockets and asserts the
+ * AF_INET preference for v4 packets.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/in.h>
+#include <linux/unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+static const int PORT = 8888;
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds, int count)
+{
+	struct sockaddr_storage addr;
+	struct sockaddr_in  *addr4;
+	struct sockaddr_in6 *addr6;
+	int opt, i;
+
+	switch (family) {
+	case AF_INET:
+		addr4 = (struct sockaddr_in *)&addr;
+		addr4->sin_family = AF_INET;
+		addr4->sin_addr.s_addr = htonl(INADDR_ANY);
+		addr4->sin_port = htons(PORT);
+		break;
+	case AF_INET6:
+		addr6 = (struct sockaddr_in6 *)&addr;
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_addr = in6addr_any;
+		addr6->sin6_port = htons(PORT);
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+	}
+
+	for (i = 0; i < count; ++i) {
+		rcv_fds[i] = socket(family, proto, 0);
+		if (rcv_fds[i] < 0)
+			error(1, errno, "failed to create receive socket");
+
+		opt = 1;
+		if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT");
+
+		if (bind(rcv_fds[i], (struct sockaddr *)&addr, sizeof(addr)))
+			error(1, errno, "failed to bind receive socket");
+
+		if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+			error(1, errno, "failed to listen on receive port");
+	}
+}
+
+static void send_from_v4(int proto)
+{
+	struct sockaddr_in  saddr, daddr;
+	int fd;
+
+	saddr.sin_family = AF_INET;
+	saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+	saddr.sin_port = 0;
+
+	daddr.sin_family = AF_INET;
+	daddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	daddr.sin_port = htons(PORT);
+
+	fd = socket(AF_INET, proto, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+
+	if (bind(fd, (struct sockaddr *)&saddr, sizeof(saddr)))
+		error(1, errno, "failed to bind send socket");
+
+	if (connect(fd, (struct sockaddr *)&daddr, sizeof(daddr)))
+		error(1, errno, "failed to connect send socket");
+
+	if (send(fd, "a", 1, 0) < 0)
+		error(1, errno, "failed to send message");
+
+	close(fd);
+}
+
+static int receive_once(int epfd, int proto)
+{
+	struct epoll_event ev;
+	int i, fd;
+	char buf[8];
+
+	i = epoll_wait(epfd, &ev, 1, -1);
+	if (i < 0)
+		error(1, errno, "epoll_wait failed");
+
+	if (proto == SOCK_STREAM) {
+		fd = accept(ev.data.fd, NULL, NULL);
+		if (fd < 0)
+			error(1, errno, "failed to accept");
+		i = recv(fd, buf, sizeof(buf), 0);
+		close(fd);
+	} else {
+		i = recv(ev.data.fd, buf, sizeof(buf), 0);
+	}
+
+	if (i < 0)
+		error(1, errno, "failed to recv");
+
+	return ev.data.fd;
+}
+
+static void test(int *rcv_fds, int count, int proto)
+{
+	struct epoll_event ev;
+	int epfd, i, test_fd;
+	int test_family;
+	socklen_t len;
+
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+
+	ev.events = EPOLLIN;
+	for (i = 0; i < count; ++i) {
+		ev.data.fd = rcv_fds[i];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+			error(1, errno, "failed to register sock epoll");
+	}
+
+	send_from_v4(proto);
+
+	test_fd = receive_once(epfd, proto);
+	len = sizeof(test_family);
+	if (getsockopt(test_fd, SOL_SOCKET, SO_DOMAIN, &test_family, &len))
+		error(1, errno, "failed to read socket domain");
+	if (test_family != AF_INET)
+		error(1, 0, "expected to receive on v4 socket but got v6 (%d)",
+		      test_family);
+
+	close(epfd);
+}
+
+int main(void)
+{
+	int rcv_fds[32], i;
+
+	fprintf(stderr, "---- UDP IPv4 created before IPv6 ----\n");
+	build_rcv_fd(AF_INET, SOCK_DGRAM, rcv_fds, 5);
+	build_rcv_fd(AF_INET6, SOCK_DGRAM, &(rcv_fds[5]), 5);
+	test(rcv_fds, 10, SOCK_DGRAM);
+	for (i = 0; i < 10; ++i)
+		close(rcv_fds[i]);
+
+	fprintf(stderr, "---- UDP IPv6 created before IPv4 ----\n");
+	build_rcv_fd(AF_INET6, SOCK_DGRAM, rcv_fds, 5);
+	build_rcv_fd(AF_INET, SOCK_DGRAM, &(rcv_fds[5]), 5);
+	test(rcv_fds, 10, SOCK_DGRAM);
+	for (i = 0; i < 10; ++i)
+		close(rcv_fds[i]);
+
+	/* NOTE: UDP socket lookups traverse a different code path when there
+	 * are > 10 sockets in a group.
+	 */
+	fprintf(stderr, "---- UDP IPv4 created before IPv6 (large) ----\n");
+	build_rcv_fd(AF_INET, SOCK_DGRAM, rcv_fds, 16);
+	build_rcv_fd(AF_INET6, SOCK_DGRAM, &(rcv_fds[16]), 16);
+	test(rcv_fds, 32, SOCK_DGRAM);
+	for (i = 0; i < 32; ++i)
+		close(rcv_fds[i]);
+
+	fprintf(stderr, "---- UDP IPv6 created before IPv4 (large) ----\n");
+	build_rcv_fd(AF_INET6, SOCK_DGRAM, rcv_fds, 16);
+	build_rcv_fd(AF_INET, SOCK_DGRAM, &(rcv_fds[16]), 16);
+	test(rcv_fds, 32, SOCK_DGRAM);
+	for (i = 0; i < 32; ++i)
+		close(rcv_fds[i]);
+
+	fprintf(stderr, "---- TCP IPv4 created before IPv6 ----\n");
+	build_rcv_fd(AF_INET, SOCK_STREAM, rcv_fds, 5);
+	build_rcv_fd(AF_INET6, SOCK_STREAM, &(rcv_fds[5]), 5);
+	test(rcv_fds, 10, SOCK_STREAM);
+	for (i = 0; i < 10; ++i)
+		close(rcv_fds[i]);
+
+	fprintf(stderr, "---- TCP IPv6 created before IPv4 ----\n");
+	build_rcv_fd(AF_INET6, SOCK_STREAM, rcv_fds, 5);
+	build_rcv_fd(AF_INET, SOCK_STREAM, &(rcv_fds[5]), 5);
+	test(rcv_fds, 10, SOCK_STREAM);
+	for (i = 0; i < 10; ++i)
+		close(rcv_fds[i]);
+
+	fprintf(stderr, "SUCCESS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/route_hint.sh b/tools/testing/selftests/net/route_hint.sh
new file mode 100755
index 000000000000..2db01ece0cc1
--- /dev/null
+++ b/tools/testing/selftests/net/route_hint.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test ensures directed broadcast routes use dst hint mechanism
+
+source lib.sh
+
+CLIENT_IP4="192.168.0.1"
+SERVER_IP4="192.168.0.2"
+BROADCAST_ADDRESS="192.168.0.255"
+
+setup() {
+	setup_ns CLIENT_NS SERVER_NS
+
+	ip -net "${SERVER_NS}" link add link1 type veth peer name link0 netns "${CLIENT_NS}"
+
+	ip -net "${CLIENT_NS}" link set link0 up
+	ip -net "${CLIENT_NS}" addr add "${CLIENT_IP4}/24" dev link0
+
+	ip -net "${SERVER_NS}" link set link1 up
+	ip -net "${SERVER_NS}" addr add "${SERVER_IP4}/24" dev link1
+
+	ip netns exec "${CLIENT_NS}" ethtool -K link0 tcp-segmentation-offload off
+	ip netns exec "${SERVER_NS}" sh -c "echo 500000000 > /sys/class/net/link1/gro_flush_timeout"
+	ip netns exec "${SERVER_NS}" sh -c "echo 1 > /sys/class/net/link1/napi_defer_hard_irqs"
+	ip netns exec "${SERVER_NS}" ethtool -K link1 generic-receive-offload on
+}
+
+cleanup() {
+	ip -net "${SERVER_NS}" link del link1
+	cleanup_ns "${CLIENT_NS}" "${SERVER_NS}"
+}
+
+directed_bcast_hint_test()
+{
+	local rc=0
+
+	echo "Testing for directed broadcast route hint"
+
+	orig_in_brd=$(ip netns exec "${SERVER_NS}" lnstat -j -i1 -c1 | jq '.in_brd')
+	ip netns exec "${CLIENT_NS}" mausezahn link0 -a own -b bcast -A "${CLIENT_IP4}" \
+		-B "${BROADCAST_ADDRESS}" -c1 -t tcp "sp=1-100,dp=1234,s=1,a=0" -p 5 -q
+	sleep 1
+	new_in_brd=$(ip netns exec "${SERVER_NS}" lnstat -j -i1 -c1 | jq '.in_brd')
+
+	res=$(echo "${new_in_brd} - ${orig_in_brd}" | bc)
+
+	if [ "${res}" -lt 100 ]; then
+		echo "[ OK ]"
+		rc="${ksft_pass}"
+	else
+		echo "[FAIL] expected in_brd to be under 100, got ${res}"
+		rc="${ksft_fail}"
+	fi
+
+	return "${rc}"
+}
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit "${ksft_skip}"
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+	echo "SKIP: Could not run test without jq tool"
+	exit "${ksft_skip}"
+fi
+
+if [ ! -x "$(command -v bc)" ]; then
+	echo "SKIP: Could not run test without bc tool"
+	exit "${ksft_skip}"
+fi
+
+trap cleanup EXIT
+
+setup
+
+directed_bcast_hint_test
+exit $?
diff --git a/tools/testing/selftests/net/route_localnet.sh b/tools/testing/selftests/net/route_localnet.sh
new file mode 100755
index 000000000000..e08701c750e3
--- /dev/null
+++ b/tools/testing/selftests/net/route_localnet.sh
@@ -0,0 +1,76 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a couple of tests when route_localnet = 1.
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+setup() {
+    ip netns add "${PEER_NS}"
+    ip -netns "${PEER_NS}" link set dev lo up
+    ip link add name veth0 type veth peer name veth1
+    ip link set dev veth0 up
+    ip link set dev veth1 netns "${PEER_NS}"
+
+    # Enable route_localnet and delete useless route 127.0.0.0/8.
+    sysctl -w net.ipv4.conf.veth0.route_localnet=1
+    ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.route_localnet=1
+    ip route del 127.0.0.0/8 dev lo table local
+    ip netns exec "${PEER_NS}" ip route del 127.0.0.0/8 dev lo table local
+
+    ip address add 127.25.3.4/24 dev veth0
+    ip link set dev veth0 up
+    ip netns exec "${PEER_NS}" ip address add 127.25.3.14/24 dev veth1
+    ip netns exec "${PEER_NS}" ip link set dev veth1 up
+
+    ip route flush cache
+    ip netns exec "${PEER_NS}" ip route flush cache
+}
+
+cleanup() {
+    ip link del veth0
+    ip route add local 127.0.0.0/8 dev lo proto kernel scope host src 127.0.0.1
+    local -r ns="$(ip netns list|grep $PEER_NS)"
+    [ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+
+# Run test when arp_announce = 2.
+run_arp_announce_test() {
+    echo "run arp_announce test"
+    setup
+
+    sysctl -w net.ipv4.conf.veth0.arp_announce=2
+    ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_announce=2
+    ping -c5 -I veth0 127.25.3.14
+    if [ $? -ne 0 ];then
+        echo "failed"
+    else
+        echo "ok"
+    fi
+
+    cleanup
+}
+
+# Run test when arp_ignore = 3.
+run_arp_ignore_test() {
+    echo "run arp_ignore test"
+    setup
+
+    sysctl -w net.ipv4.conf.veth0.arp_ignore=3
+    ip netns exec "${PEER_NS}" sysctl -w net.ipv4.conf.veth1.arp_ignore=3
+    ping -c5 -I veth0 127.25.3.14
+    if [ $? -ne 0 ];then
+        echo "failed"
+    else
+        echo "ok"
+    fi
+
+    cleanup
+}
+
+run_all_tests() {
+    run_arp_announce_test
+    run_arp_ignore_test
+}
+
+run_all_tests
diff --git a/tools/testing/selftests/net/rps_default_mask.sh b/tools/testing/selftests/net/rps_default_mask.sh
new file mode 100755
index 000000000000..b200019b3c80
--- /dev/null
+++ b/tools/testing/selftests/net/rps_default_mask.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+readonly ksft_skip=4
+readonly cpus=$(nproc)
+ret=0
+
+[ $cpus -gt 2 ] || exit $ksft_skip
+
+readonly INITIAL_RPS_DEFAULT_MASK=$(cat /proc/sys/net/core/rps_default_mask)
+readonly TAG="$(mktemp -u XXXXXX)"
+readonly VETH="veth${TAG}"
+readonly NETNS="ns-${TAG}"
+
+setup() {
+	ip netns add "${NETNS}"
+	ip -netns "${NETNS}" link set lo up
+}
+
+cleanup() {
+	echo $INITIAL_RPS_DEFAULT_MASK > /proc/sys/net/core/rps_default_mask
+	ip netns del $NETNS
+}
+
+chk_rps() {
+	local rps_mask expected_rps_mask=$4
+	local dev_name=$3
+	local netns=$2
+	local cmd="cat"
+	local msg=$1
+
+	[ -n "$netns" ] && cmd="ip netns exec $netns $cmd"
+
+	rps_mask=$($cmd /sys/class/net/$dev_name/queues/rx-0/rps_cpus)
+	printf "%-60s" "$msg"
+
+	# In case there is more than 32 CPUs we need to remove commas from masks
+	rps_mask=${rps_mask//,}
+	expected_rps_mask=${expected_rps_mask//,}
+	if [ $rps_mask -eq $expected_rps_mask ]; then
+		echo "[ ok ]"
+	else
+		echo "[fail] expected $expected_rps_mask found $rps_mask"
+		ret=1
+	fi
+}
+
+trap cleanup EXIT
+
+echo 0 > /proc/sys/net/core/rps_default_mask
+setup
+chk_rps "empty rps_default_mask" $NETNS lo 0
+cleanup
+
+echo 1 > /proc/sys/net/core/rps_default_mask
+setup
+chk_rps "changing rps_default_mask doesn't affect existing devices" "" lo $INITIAL_RPS_DEFAULT_MASK
+
+echo 3 > /proc/sys/net/core/rps_default_mask
+chk_rps "changing rps_default_mask doesn't affect existing netns" $NETNS lo 0
+
+ip link add name $VETH type veth peer netns $NETNS name $VETH
+ip link set dev $VETH up
+ip -n $NETNS link set dev $VETH up
+chk_rps "changing rps_default_mask affects newly created devices" "" $VETH 3
+chk_rps "changing rps_default_mask doesn't affect newly child netns[II]" $NETNS $VETH 0
+ip link del dev $VETH
+ip netns del $NETNS
+
+setup
+chk_rps "rps_default_mask is 0 by default in child netns" "$NETNS" lo 0
+
+ip netns exec $NETNS sysctl -qw net.core.rps_default_mask=1
+ip link add name $VETH type veth peer netns $NETNS name $VETH
+chk_rps "changing rps_default_mask in child ns doesn't affect the main one" "" lo $INITIAL_RPS_DEFAULT_MASK
+chk_rps "changing rps_default_mask in child ns affects new childns devices" $NETNS $VETH 1
+chk_rps "changing rps_default_mask in child ns doesn't affect existing devices" $NETNS lo 0
+
+exit $ret
diff --git a/tools/testing/selftests/net/rtnetlink.py b/tools/testing/selftests/net/rtnetlink.py
new file mode 100755
index 000000000000..e9ad5e88da97
--- /dev/null
+++ b/tools/testing/selftests/net/rtnetlink.py
@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+
+from lib.py import ksft_exit, ksft_run, ksft_ge, RtnlAddrFamily
+import socket
+
+IPV4_ALL_HOSTS_MULTICAST = b'\xe0\x00\x00\x01'
+
+def dump_mcaddr_check(rtnl: RtnlAddrFamily) -> None:
+    """
+    Verify that at least one interface has the IPv4 all-hosts multicast address.
+    At least the loopback interface should have this address.
+    """
+
+    addresses = rtnl.getmulticast({"ifa-family": socket.AF_INET}, dump=True)
+
+    all_host_multicasts = [
+        addr for addr in addresses if addr['multicast'] == IPV4_ALL_HOSTS_MULTICAST
+    ]
+
+    ksft_ge(len(all_host_multicasts), 1,
+            "No interface found with the IPv4 all-hosts multicast address")
+
+def main() -> None:
+    rtnl = RtnlAddrFamily()
+    ksft_run([dump_mcaddr_check], args=(rtnl, ))
+    ksft_exit()
+
+if __name__ == "__main__":
+    main()
diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
new file mode 100755
index 000000000000..248c2b91fe42
--- /dev/null
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -0,0 +1,1520 @@
+#!/bin/bash
+#
+# This test is for checking rtnetlink callpaths, and get as much coverage as possible.
+#
+# set -e
+
+ALL_TESTS="
+	kci_test_polrouting
+	kci_test_route_get
+	kci_test_addrlft
+	kci_test_addrlft_route_cleanup
+	kci_test_promote_secondaries
+	kci_test_tc
+	kci_test_gre
+	kci_test_gretap
+	kci_test_ip6gretap
+	kci_test_erspan
+	kci_test_ip6erspan
+	kci_test_bridge
+	kci_test_addrlabel
+	kci_test_ifalias
+	kci_test_vrf
+	kci_test_encap
+	kci_test_macsec
+	kci_test_macsec_vlan
+	kci_test_ipsec
+	kci_test_ipsec_offload
+	kci_test_fdb_get
+	kci_test_fdb_del
+	kci_test_neigh_get
+	kci_test_bridge_parent_id
+	kci_test_address_proto
+	kci_test_enslave_bonding
+	kci_test_mngtmpaddr
+	kci_test_operstate
+"
+
+devdummy="test-dummy0"
+VERBOSE=0
+PAUSE=no
+PAUSE_ON_FAIL=no
+
+source lib.sh
+
+# set global exit status, but never reset nonzero one.
+check_err()
+{
+	if [ $ret -eq 0 ]; then
+		ret=$1
+	fi
+	[ -n "$2" ] && echo "$2"
+}
+
+# same but inverted -- used when command must fail for test to pass
+check_fail()
+{
+	if [ $1 -eq 0 ]; then
+		ret=1
+	fi
+}
+
+run_cmd_common()
+{
+	local cmd="$*"
+	local out
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: ${cmd}"
+	fi
+	out=$($cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+	return $rc
+}
+
+run_cmd() {
+	run_cmd_common "$@"
+	rc=$?
+	check_err $rc
+	return $rc
+}
+run_cmd_fail()
+{
+	run_cmd_common "$@"
+	rc=$?
+	check_fail $rc
+	return $rc
+}
+
+run_cmd_grep_common()
+{
+	local find="$1"; shift
+	local cmd="$*"
+	local out
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: ${cmd} 2>&1 | grep -q '${find}'"
+	fi
+	out=$($cmd 2>&1 | grep -q "${find}" 2>&1)
+	return $?
+}
+
+run_cmd_grep() {
+	run_cmd_grep_common "$@"
+	rc=$?
+	check_err $rc
+	return $rc
+}
+
+run_cmd_grep_fail()
+{
+	run_cmd_grep_common "$@"
+	rc=$?
+	check_fail $rc
+	return $rc
+}
+
+end_test()
+{
+	echo "$*"
+	[ "${VERBOSE}" = "1" ] && echo
+
+	if [[ $ret -ne 0 ]] && [[ "${PAUSE_ON_FAIL}" = "yes" ]]; then
+		echo "Hit enter to continue"
+		read a
+	fi;
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo "Hit enter to continue"
+		read a
+	fi
+
+}
+
+
+kci_add_dummy()
+{
+	run_cmd ip link add name "$devdummy" type dummy
+	run_cmd ip link set "$devdummy" up
+}
+
+kci_del_dummy()
+{
+	run_cmd ip link del dev "$devdummy"
+}
+
+kci_test_netconf()
+{
+	dev="$1"
+	r=$ret
+	run_cmd ip netconf show dev "$dev"
+	for f in 4 6; do
+		run_cmd ip -$f netconf show dev "$dev"
+	done
+
+	if [ $ret -ne 0 ] ;then
+		end_test "FAIL: ip netconf show $dev"
+		test $r -eq 0 && ret=0
+		return 1
+	fi
+}
+
+# add a bridge with vlans on top
+kci_test_bridge()
+{
+	devbr="test-br0"
+	vlandev="testbr-vlan1"
+
+	local ret=0
+	run_cmd ip link add name "$devbr" type bridge
+	run_cmd ip link set dev "$devdummy" master "$devbr"
+	run_cmd ip link set "$devbr" up
+	run_cmd ip link add link "$devbr" name "$vlandev" type vlan id 1
+	run_cmd ip addr add dev "$vlandev" 10.200.7.23/30
+	run_cmd ip -6 addr add dev "$vlandev" dead:42::1234/64
+	run_cmd ip -d link
+	run_cmd ip r s t all
+
+	for name in "$devbr" "$vlandev" "$devdummy" ; do
+		kci_test_netconf "$name"
+	done
+	run_cmd ip -6 addr del dev "$vlandev" dead:42::1234/64
+	run_cmd ip link del dev "$vlandev"
+	run_cmd ip link del dev "$devbr"
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: bridge setup"
+		return 1
+	fi
+	end_test "PASS: bridge setup"
+
+}
+
+kci_test_gre()
+{
+	gredev=neta
+	rem=10.42.42.1
+	loc=10.0.0.1
+
+	local ret=0
+	run_cmd ip tunnel add $gredev mode gre remote $rem local $loc ttl 1
+	run_cmd ip link set $gredev up
+	run_cmd ip addr add 10.23.7.10 dev $gredev
+	run_cmd ip route add 10.23.8.0/30 dev $gredev
+	run_cmd ip addr add dev "$devdummy" 10.23.7.11/24
+	run_cmd ip link
+	run_cmd ip addr
+
+	kci_test_netconf "$gredev"
+	run_cmd ip addr del dev "$devdummy" 10.23.7.11/24
+	run_cmd ip link del $gredev
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: gre tunnel endpoint"
+		return 1
+	fi
+	end_test "PASS: gre tunnel endpoint"
+}
+
+# tc uses rtnetlink too, for full tc testing
+# please see tools/testing/selftests/tc-testing.
+kci_test_tc()
+{
+	dev=lo
+	local ret=0
+
+	run_cmd tc qdisc add dev "$dev" root handle 1: htb
+	run_cmd tc class add dev "$dev" parent 1: classid 1:10 htb rate 1mbit
+	run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffe: protocol ip u32 divisor 256
+	run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffd: protocol ip u32 divisor 256
+	run_cmd tc filter add dev "$dev" parent 1:0 prio 5 handle ffc: protocol ip u32 divisor 256
+	run_cmd tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32 ht ffe:2: match ip src 10.0.0.3 flowid 1:10
+	run_cmd tc filter add dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:2 u32 ht ffe:2: match ip src 10.0.0.2 flowid 1:10
+	run_cmd tc filter show dev "$dev" parent  1:0
+	run_cmd tc filter del dev "$dev" protocol ip parent 1: prio 5 handle ffe:2:3 u32
+	run_cmd tc filter show dev "$dev" parent  1:0
+	run_cmd tc qdisc del dev "$dev" root handle 1: htb
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: tc htb hierarchy"
+		return 1
+	fi
+	end_test "PASS: tc htb hierarchy"
+
+}
+
+kci_test_polrouting()
+{
+	local ret=0
+	run_cmd ip rule add fwmark 1 lookup 100
+	run_cmd ip route add local 0.0.0.0/0 dev lo table 100
+	run_cmd ip r s t all
+	run_cmd ip rule del fwmark 1 lookup 100
+	run_cmd ip route del local 0.0.0.0/0 dev lo table 100
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: policy route test"
+		return 1
+	fi
+	end_test "PASS: policy routing"
+}
+
+kci_test_route_get()
+{
+	local hash_policy=$(sysctl -n net.ipv4.fib_multipath_hash_policy)
+
+	local ret=0
+	run_cmd ip route get 127.0.0.1
+	run_cmd ip route get 127.0.0.1 dev "$devdummy"
+	run_cmd ip route get ::1
+	run_cmd ip route get fe80::1 dev "$devdummy"
+	run_cmd ip route get 127.0.0.1 from 127.0.0.1 oif lo tos 0x10 mark 0x1
+	run_cmd ip route get ::1 from ::1 iif lo oif lo tos 0x10 mark 0x1
+	run_cmd ip addr add dev "$devdummy" 10.23.7.11/24
+	run_cmd ip route get 10.23.7.11 from 10.23.7.12 iif "$devdummy"
+	run_cmd ip route add 10.23.8.0/24 \
+		nexthop via 10.23.7.13 dev "$devdummy" \
+		nexthop via 10.23.7.14 dev "$devdummy"
+
+	sysctl -wq net.ipv4.fib_multipath_hash_policy=0
+	run_cmd ip route get 10.23.8.11
+	sysctl -wq net.ipv4.fib_multipath_hash_policy=1
+	run_cmd ip route get 10.23.8.11
+	sysctl -wq net.ipv4.fib_multipath_hash_policy="$hash_policy"
+	run_cmd ip route del 10.23.8.0/24
+	run_cmd ip addr del dev "$devdummy" 10.23.7.11/24
+
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: route get"
+		return 1
+	fi
+
+	end_test "PASS: route get"
+}
+
+check_addr_not_exist()
+{
+	dev=$1
+	addr=$2
+	if ip addr show dev $dev | grep -q $addr; then
+		return 1
+	else
+		return 0
+	fi
+}
+
+kci_test_addrlft()
+{
+	for i in $(seq 10 100) ;do
+		lft=$(((RANDOM%3) + 1))
+		run_cmd ip addr add 10.23.11.$i/32 dev "$devdummy" preferred_lft $lft valid_lft $((lft+1))
+	done
+
+	slowwait 5 check_addr_not_exist "$devdummy" "10.23.11."
+	if [ $? -eq 1 ]; then
+		# troubleshoot the reason for our failure
+		run_cmd ip addr show dev "$devdummy"
+		check_err 1
+		end_test "FAIL: preferred_lft addresses remaining"
+		return
+	fi
+
+	end_test "PASS: preferred_lft addresses have expired"
+}
+
+kci_test_addrlft_route_cleanup()
+{
+	local ret=0
+	local test_addr="2001:db8:99::1/64"
+	local test_prefix="2001:db8:99::/64"
+
+	run_cmd ip -6 addr add $test_addr dev "$devdummy" valid_lft 300 preferred_lft 300
+	run_cmd_grep "$test_prefix proto kernel" ip -6 route show dev "$devdummy"
+	run_cmd ip -6 addr del $test_addr dev "$devdummy"
+	run_cmd_grep_fail "$test_prefix" ip -6 route show dev "$devdummy"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: route not cleaned up when address with valid_lft deleted"
+		return 1
+	fi
+
+	end_test "PASS: route cleaned up when address with valid_lft deleted"
+}
+
+kci_test_promote_secondaries()
+{
+	run_cmd ifconfig "$devdummy"
+	if [ $ret -ne 0 ]; then
+		end_test "SKIP: ifconfig not installed"
+		return $ksft_skip
+	fi
+	promote=$(sysctl -n net.ipv4.conf.$devdummy.promote_secondaries)
+
+	sysctl -q net.ipv4.conf.$devdummy.promote_secondaries=1
+
+	for i in $(seq 2 254);do
+		IP="10.23.11.$i"
+		ip -f inet addr add $IP/16 brd + dev "$devdummy"
+		ifconfig "$devdummy" $IP netmask 255.255.0.0
+	done
+
+	ip addr flush dev "$devdummy"
+
+	[ $promote -eq 0 ] && sysctl -q net.ipv4.conf.$devdummy.promote_secondaries=0
+
+	end_test "PASS: promote_secondaries complete"
+}
+
+kci_test_addrlabel()
+{
+	local ret=0
+	run_cmd ip addrlabel add prefix dead::/64 dev lo label 1
+	run_cmd_grep "prefix dead::/64 dev lo label 1" ip addrlabel list
+	run_cmd ip addrlabel del prefix dead::/64 dev lo label 1
+	run_cmd ip addrlabel add prefix dead::/64 label 1
+	run_cmd ip addrlabel del prefix dead::/64 label 1
+
+	# concurrent add/delete
+	for i in $(seq 1 1000); do
+		ip addrlabel add prefix 1c3::/64 label 12345 2>/dev/null
+	done &
+
+	for i in $(seq 1 1000); do
+		ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
+	done
+
+	wait
+
+	ip addrlabel del prefix 1c3::/64 label 12345 2>/dev/null
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: ipv6 addrlabel"
+		return 1
+	fi
+
+	end_test "PASS: ipv6 addrlabel"
+}
+
+kci_test_ifalias()
+{
+	local ret=0
+	namewant=$(uuidgen)
+	syspathname="/sys/class/net/$devdummy/ifalias"
+	run_cmd ip link set dev "$devdummy" alias "$namewant"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: cannot set interface alias of $devdummy to $namewant"
+		return 1
+	fi
+	run_cmd_grep "alias $namewant" ip link show "$devdummy"
+
+	if [ -r "$syspathname" ] ; then
+		read namehave < "$syspathname"
+		if [ "$namewant" != "$namehave" ]; then
+			end_test "FAIL: did set ifalias $namewant but got $namehave"
+			return 1
+		fi
+
+		namewant=$(uuidgen)
+		echo "$namewant" > "$syspathname"
+	        run_cmd_grep "alias $namewant" ip link show "$devdummy"
+
+		# sysfs interface allows to delete alias again
+		echo "" > "$syspathname"
+	        run_cmd_grep_fail "alias $namewant" ip link show "$devdummy"
+
+		for i in $(seq 1 100); do
+			uuidgen > "$syspathname" &
+		done
+
+		wait
+
+		# re-add the alias -- kernel should free mem when dummy dev is removed
+		run_cmd ip link set dev "$devdummy" alias "$namewant"
+
+	fi
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: set interface alias $devdummy to $namewant"
+		return 1
+	fi
+
+	end_test "PASS: set ifalias $namewant for $devdummy"
+}
+
+kci_test_vrf()
+{
+	vrfname="test-vrf"
+	local ret=0
+	run_cmd ip link show type vrf
+	if [ $? -ne 0 ]; then
+		end_test "SKIP: vrf: iproute2 too old"
+		return $ksft_skip
+	fi
+	run_cmd ip link add "$vrfname" type vrf table 10
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: can't add vrf interface, skipping test"
+		return 0
+	fi
+	run_cmd_grep "$vrfname" ip -br link show type vrf
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: created vrf device not found"
+		return 1
+	fi
+
+	run_cmd ip link set dev "$vrfname" up
+	run_cmd ip link set dev "$devdummy" master "$vrfname"
+	run_cmd ip link del dev "$vrfname"
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: vrf"
+		return 1
+	fi
+
+	end_test "PASS: vrf"
+}
+
+kci_test_encap_vxlan()
+{
+	local ret=0
+	vxlan="test-vxlan0"
+	vlan="test-vlan0"
+	run_cmd ip -netns "$testns" link add "$vxlan" type vxlan id 42 group 239.1.1.1 \
+		dev "$devdummy" dstport 4789
+	if [ $? -ne 0 ]; then
+		end_test "FAIL: can't add vxlan interface, skipping test"
+		return 0
+	fi
+
+	run_cmd ip -netns "$testns" addr add 10.2.11.49/24 dev "$vxlan"
+	run_cmd ip -netns "$testns" link set up dev "$vxlan"
+	run_cmd ip -netns "$testns" link add link "$vxlan" name "$vlan" type vlan id 1
+
+	# changelink testcases
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan vni 43
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan group ffe5::5 dev "$devdummy"
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan ttl inherit
+
+	run_cmd ip -netns "$testns" link set dev "$vxlan" type vxlan ttl 64
+	run_cmd ip -netns "$testns" link set dev "$vxlan" type vxlan nolearning
+
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan proxy
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan norsc
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan l2miss
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan l3miss
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan external
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udpcsum
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumtx
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan udp6zerocsumrx
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumtx
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan remcsumrx
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan gbp
+	run_cmd_fail ip -netns "$testns" link set dev "$vxlan" type vxlan gpe
+	run_cmd ip -netns "$testns" link del "$vxlan"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: vxlan"
+		return 1
+	fi
+	end_test "PASS: vxlan"
+}
+
+kci_test_encap_fou()
+{
+	local ret=0
+	name="test-fou"
+	run_cmd_grep 'Usage: ip fou' ip fou help
+	if [ $? -ne 0 ];then
+		end_test "SKIP: fou: iproute2 too old"
+		return $ksft_skip
+	fi
+
+	if ! /sbin/modprobe -q -n fou; then
+		end_test "SKIP: module fou is not found"
+		return $ksft_skip
+	fi
+	/sbin/modprobe -q fou
+
+	run_cmd ip -netns "$testns" fou add port 7777 ipproto 47
+	if [ $? -ne 0 ];then
+		end_test "FAIL: can't add fou port 7777, skipping test"
+		return 1
+	fi
+	run_cmd ip -netns "$testns" fou add port 8888 ipproto 4
+	run_cmd_fail ip -netns "$testns" fou del port 9999
+	run_cmd ip -netns "$testns" fou del port 7777
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: fou"
+		return 1
+	fi
+
+	end_test "PASS: fou"
+}
+
+# test various encap methods, use netns to avoid unwanted interference
+kci_test_encap()
+{
+	local ret=0
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP encap tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+	run_cmd ip -netns "$testns" link set lo up
+	run_cmd ip -netns "$testns" link add name "$devdummy" type dummy
+	run_cmd ip -netns "$testns" link set "$devdummy" up
+	run_cmd kci_test_encap_vxlan
+	run_cmd kci_test_encap_fou
+
+	ip netns del "$testns"
+	return $ret
+}
+
+kci_test_macsec()
+{
+	msname="test_macsec0"
+	local ret=0
+	run_cmd_grep "^Usage: ip macsec" ip macsec help
+	if [ $? -ne 0 ]; then
+		end_test "SKIP: macsec: iproute2 too old"
+		return $ksft_skip
+	fi
+	run_cmd ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: can't add macsec interface, skipping test"
+		return 1
+	fi
+	run_cmd ip macsec add "$msname" tx sa 0 pn 1024 on key 01 12345678901234567890123456789012
+	run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef"
+	run_cmd ip macsec add "$msname" rx port 1234 address "1c:ed:de:ad:be:ef" sa 0 pn 1 on key 00 0123456789abcdef0123456789abcdef
+	run_cmd ip macsec show
+	run_cmd ip link del dev "$msname"
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: macsec"
+		return 1
+	fi
+
+	end_test "PASS: macsec"
+}
+
+# Test __dev_set_rx_mode call from dev_uc_add under addr_list_lock spinlock.
+# Make sure __dev_set_promiscuity is not grabbing (sleeping) netdev instance
+# lock.
+# https://lore.kernel.org/netdev/2aff4342b0f5b1539c02ffd8df4c7e58dd9746e7.camel@nvidia.com/
+kci_test_macsec_vlan()
+{
+	msname="test_macsec1"
+	vlanname="test_vlan1"
+	local ret=0
+	run_cmd_grep "^Usage: ip macsec" ip macsec help
+	if [ $? -ne 0 ]; then
+		end_test "SKIP: macsec: iproute2 too old"
+		return $ksft_skip
+	fi
+	run_cmd ip link add link "$devdummy" "$msname" type macsec port 42 encrypt on
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: can't add macsec interface, skipping test"
+		return 1
+	fi
+
+	run_cmd ip link set dev "$msname" up
+	ip link add link "$msname" name "$vlanname" type vlan id 1
+	ip link set dev "$vlanname" address 00:11:22:33:44:88
+	ip link set dev "$vlanname" up
+	run_cmd ip link del dev "$vlanname"
+	run_cmd ip link del dev "$msname"
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: macsec_vlan"
+		return 1
+	fi
+
+	end_test "PASS: macsec_vlan"
+}
+
+#-------------------------------------------------------------------
+# Example commands
+#   ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \
+#            spi 0x07 mode transport reqid 0x07 replay-window 32 \
+#            aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \
+#            sel src 14.0.0.52/24 dst 14.0.0.70/24
+#   ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \
+#            tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \
+#            spi 0x07 mode transport reqid 0x07
+#
+# Subcommands not tested
+#    ip x s update
+#    ip x s allocspi
+#    ip x s deleteall
+#    ip x p update
+#    ip x p deleteall
+#    ip x p set
+#-------------------------------------------------------------------
+kci_test_ipsec()
+{
+	local ret=0
+	algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128"
+	srcip=192.168.123.1
+	dstip=192.168.123.2
+	spi=7
+
+	ip addr add $srcip dev $devdummy
+
+	# flush to be sure there's nothing configured
+	run_cmd ip x s flush ; ip x p flush
+
+	# start the monitor in the background
+	tmpfile=`mktemp /var/run/ipsectestXXX`
+	mpid=`(ip x m > $tmpfile & echo $!) 2>/dev/null`
+	sleep 0.2
+
+	ipsecid="proto esp src $srcip dst $dstip spi 0x07"
+	run_cmd ip x s add $ipsecid \
+            mode transport reqid 0x07 replay-window 32 \
+            $algo sel src $srcip/24 dst $dstip/24
+
+
+	lines=`ip x s list | grep $srcip | grep $dstip | wc -l`
+	run_cmd test $lines -eq 2
+	run_cmd_grep "SAD count 1" ip x s count
+
+	lines=`ip x s get $ipsecid | grep $srcip | grep $dstip | wc -l`
+	run_cmd test $lines -eq 2
+	run_cmd ip x s delete $ipsecid
+
+	lines=`ip x s list | wc -l`
+	run_cmd test $lines -eq 0
+
+	ipsecsel="dir out src $srcip/24 dst $dstip/24"
+	run_cmd ip x p add $ipsecsel \
+		    tmpl proto esp src $srcip dst $dstip \
+		    spi 0x07 mode transport reqid 0x07
+
+
+	lines=`ip x p list | grep $srcip | grep $dstip | wc -l`
+	run_cmd test $lines -eq 2
+
+	run_cmd_grep "SPD IN  0 OUT 1 FWD 0" ip x p count
+
+	lines=`ip x p get $ipsecsel | grep $srcip | grep $dstip | wc -l`
+	run_cmd test $lines -eq 2
+
+	run_cmd ip x p delete $ipsecsel
+
+	lines=`ip x p list | wc -l`
+	run_cmd test $lines -eq 0
+
+	# check the monitor results
+	kill $mpid
+	lines=`wc -l $tmpfile | cut "-d " -f1`
+	run_cmd test $lines -eq 20
+	rm -rf $tmpfile
+
+	# clean up any leftovers
+	run_cmd ip x s flush
+	run_cmd ip x p flush
+	ip addr del $srcip/32 dev $devdummy
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: ipsec"
+		return 1
+	fi
+	end_test "PASS: ipsec"
+}
+
+#-------------------------------------------------------------------
+# Example commands
+#   ip x s add proto esp src 14.0.0.52 dst 14.0.0.70 \
+#            spi 0x07 mode transport reqid 0x07 replay-window 32 \
+#            aead 'rfc4106(gcm(aes))' 1234567890123456dcba 128 \
+#            sel src 14.0.0.52/24 dst 14.0.0.70/24
+#            offload dev sim1 dir out
+#   ip x p add dir out src 14.0.0.52/24 dst 14.0.0.70/24 \
+#            tmpl proto esp src 14.0.0.52 dst 14.0.0.70 \
+#            spi 0x07 mode transport reqid 0x07
+#
+#-------------------------------------------------------------------
+kci_test_ipsec_offload()
+{
+	local ret=0
+	algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128"
+	srcip=192.168.123.3
+	dstip=192.168.123.4
+	sysfsd=/sys/kernel/debug/netdevsim/netdevsim0/ports/0/
+	sysfsf=$sysfsd/ipsec
+	sysfsnet=/sys/bus/netdevsim/devices/netdevsim0/net/
+	probed=false
+	esp4_offload_probed_default=false
+
+	if lsmod | grep -q esp4_offload; then
+		esp4_offload_probed_default=true
+	fi
+
+	if ! mount | grep -q debugfs; then
+		mount -t debugfs none /sys/kernel/debug/ &> /dev/null
+	fi
+
+	# setup netdevsim since dummydev doesn't have offload support
+	if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+		run_cmd modprobe -q netdevsim
+		if [ $ret -ne 0 ]; then
+			end_test "SKIP: ipsec_offload can't load netdevsim"
+			return $ksft_skip
+		fi
+		probed=true
+	fi
+
+	echo "0" > /sys/bus/netdevsim/new_device
+	while [ ! -d $sysfsnet ] ; do :; done
+	udevadm settle
+	dev=`ls $sysfsnet`
+
+	ip addr add $srcip dev $dev
+	ip link set $dev up
+	if [ ! -d $sysfsd ] ; then
+		end_test "FAIL: ipsec_offload can't create device $dev"
+		return 1
+	fi
+	if [ ! -f $sysfsf ] ; then
+		end_test "FAIL: ipsec_offload netdevsim doesn't support IPsec offload"
+		return 1
+	fi
+
+	# flush to be sure there's nothing configured
+	ip x s flush ; ip x p flush
+
+	# create offloaded SAs, both in and out
+	run_cmd ip x p add dir out src $srcip/24 dst $dstip/24 \
+	    tmpl proto esp src $srcip dst $dstip spi 9 \
+	    mode transport reqid 42
+
+	run_cmd ip x p add dir in src $dstip/24 dst $srcip/24 \
+	    tmpl proto esp src $dstip dst $srcip spi 9 \
+	    mode transport reqid 42
+
+	run_cmd ip x s add proto esp src $srcip dst $dstip spi 9 \
+	    mode transport reqid 42 $algo sel src $srcip/24 dst $dstip/24 \
+	    offload dev $dev dir out
+
+	run_cmd ip x s add proto esp src $dstip dst $srcip spi 9 \
+	    mode transport reqid 42 $algo sel src $dstip/24 dst $srcip/24 \
+	    offload dev $dev dir in
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: ipsec_offload can't create SA"
+		return 1
+	fi
+
+	# does offload show up in ip output
+	lines=`ip x s list | grep -c "crypto offload parameters: dev $dev dir"`
+	if [ $lines -ne 2 ] ; then
+		check_err 1
+		end_test "FAIL: ipsec_offload SA offload missing from list output"
+	fi
+
+	# we didn't create a peer, make sure we can Tx
+	ip neigh add $dstip dev $dev lladdr 00:11:22:33:44:55
+	# use ping to exercise the Tx path
+	ping -I $dev -c 3 -W 1 -i 0 $dstip >/dev/null
+
+	# does driver have correct offload info
+	run_cmd diff $sysfsf - << EOF
+SA count=2 tx=3
+sa[0] tx ipaddr=$dstip
+sa[0]    spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+sa[0]    key=0x34333231 38373635 32313039 36353433
+sa[1] rx ipaddr=$srcip
+sa[1]    spi=0x00000009 proto=0x32 salt=0x61626364 crypt=1
+sa[1]    key=0x34333231 38373635 32313039 36353433
+EOF
+	if [ $? -ne 0 ] ; then
+		end_test "FAIL: ipsec_offload incorrect driver data"
+		check_err 1
+	fi
+
+	# does offload get removed from driver
+	ip x s flush
+	ip x p flush
+	lines=`grep -c "SA count=0" $sysfsf`
+	if [ $lines -ne 1 ] ; then
+		check_err 1
+		end_test "FAIL: ipsec_offload SA not removed from driver"
+	fi
+
+	# clean up any leftovers
+	! "$esp4_offload_probed_default" && lsmod | grep -q esp4_offload && rmmod esp4_offload
+	echo 0 > /sys/bus/netdevsim/del_device
+	$probed && rmmod netdevsim
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: ipsec_offload"
+		return 1
+	fi
+	end_test "PASS: ipsec_offload"
+}
+
+kci_test_gretap()
+{
+	DEV_NS=gretap00
+	local ret=0
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP gretap tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	run_cmd_grep "^Usage:" ip link help gretap
+	if [ $? -ne 0 ];then
+		end_test "SKIP: gretap: iproute2 too old"
+		ip netns del "$testns"
+		return $ksft_skip
+	fi
+
+	# test native tunnel
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type gretap seq \
+		key 102 local 172.16.1.100 remote 172.16.1.200
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test external mode
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type gretap external
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: gretap"
+		ip netns del "$testns"
+		return 1
+	fi
+	end_test "PASS: gretap"
+
+	ip netns del "$testns"
+}
+
+kci_test_ip6gretap()
+{
+	DEV_NS=ip6gretap00
+	local ret=0
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP ip6gretap tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	run_cmd_grep "^Usage:" ip link help ip6gretap
+	if [ $? -ne 0 ];then
+		end_test "SKIP: ip6gretap: iproute2 too old"
+		ip netns del "$testns"
+		return $ksft_skip
+	fi
+
+	# test native tunnel
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap seq \
+		key 102 local fc00:100::1 remote fc00:100::2
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" fc00:200::1/96
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test external mode
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6gretap external
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: ip6gretap"
+		ip netns del "$testns"
+		return 1
+	fi
+	end_test "PASS: ip6gretap"
+
+	ip netns del "$testns"
+}
+
+kci_test_erspan()
+{
+	DEV_NS=erspan00
+	local ret=0
+	run_cmd_grep "^Usage:" ip link help erspan
+	if [ $? -ne 0 ];then
+		end_test "SKIP: erspan: iproute2 too old"
+		return $ksft_skip
+	fi
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP erspan tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	# test native tunnel erspan v1
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \
+		key 102 local 172.16.1.100 remote 172.16.1.200 \
+		erspan_ver 1 erspan 488
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test native tunnel erspan v2
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan seq \
+		key 102 local 172.16.1.100 remote 172.16.1.200 \
+		erspan_ver 2 erspan_dir ingress erspan_hwid 7
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test external mode
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type erspan external
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: erspan"
+		ip netns del "$testns"
+		return 1
+	fi
+	end_test "PASS: erspan"
+
+	ip netns del "$testns"
+}
+
+kci_test_ip6erspan()
+{
+	DEV_NS=ip6erspan00
+	local ret=0
+	run_cmd_grep "^Usage:" ip link help ip6erspan
+	if [ $? -ne 0 ];then
+		end_test "SKIP: ip6erspan: iproute2 too old"
+		return $ksft_skip
+	fi
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP ip6erspan tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	# test native tunnel ip6erspan v1
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \
+		key 102 local fc00:100::1 remote fc00:100::2 \
+		erspan_ver 1 erspan 488
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test native tunnel ip6erspan v2
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" type ip6erspan seq \
+		key 102 local fc00:100::1 remote fc00:100::2 \
+		erspan_ver 2 erspan_dir ingress erspan_hwid 7
+
+
+	run_cmd ip -netns "$testns" addr add dev "$DEV_NS" 10.1.1.100/24
+	run_cmd ip -netns "$testns" link set dev $DEV_NS up
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	# test external mode
+	run_cmd ip -netns "$testns" link add dev "$DEV_NS" \
+		type ip6erspan external
+
+	run_cmd ip -netns "$testns" link del "$DEV_NS"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: ip6erspan"
+		ip netns del "$testns"
+		return 1
+	fi
+	end_test "PASS: ip6erspan"
+
+	ip netns del "$testns"
+}
+
+kci_test_fdb_get()
+{
+	brdev="test-br0"
+	vxlandev="vxlan10"
+	test_mac=de:ad:be:ef:13:37
+	localip="10.0.2.2"
+	dstip="10.0.2.3"
+	local ret=0
+
+	run_cmd_grep 'bridge fdb get' bridge fdb help
+	if [ $? -ne 0 ];then
+		end_test "SKIP: fdb get tests: iproute2 too old"
+		return $ksft_skip
+	fi
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP fdb get tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+	IP="ip -netns $testns"
+	BRIDGE="bridge -netns $testns"
+	run_cmd $IP link add "$vxlandev" type vxlan id 10 local $localip \
+                dstport 4789
+	run_cmd $IP link add name "$brdev" type bridge
+	run_cmd $IP link set dev "$vxlandev" master "$brdev"
+	run_cmd $BRIDGE fdb add $test_mac dev "$vxlandev" master
+	run_cmd $BRIDGE fdb add $test_mac dev "$vxlandev" dst $dstip self
+	run_cmd_grep "dev $vxlandev master $brdev" $BRIDGE fdb get $test_mac brport "$vxlandev"
+	run_cmd_grep "dev $vxlandev master $brdev" $BRIDGE fdb get $test_mac br "$brdev"
+	run_cmd_grep "dev $vxlandev dst $dstip" $BRIDGE fdb get $test_mac dev "$vxlandev" self
+
+	ip netns del $testns &>/dev/null
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: bridge fdb get"
+		return 1
+	fi
+
+	end_test "PASS: bridge fdb get"
+}
+
+kci_test_fdb_del()
+{
+	local test_mac=de:ad:be:ef:13:37
+	local dummydev="dummy1"
+	local brdev="test-br0"
+	local ret=0
+
+	run_cmd_grep 'bridge fdb get' bridge fdb help
+	if [ $? -ne 0 ]; then
+		end_test "SKIP: fdb del tests: iproute2 too old"
+		return $ksft_skip
+	fi
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP fdb del tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+	IP="ip -netns $testns"
+	BRIDGE="bridge -netns $testns"
+	run_cmd $IP link add $dummydev type dummy
+	run_cmd $IP link add name $brdev type bridge vlan_filtering 1
+	run_cmd $IP link set dev $dummydev master $brdev
+	run_cmd $BRIDGE fdb add $test_mac dev $dummydev master static vlan 1
+	run_cmd $BRIDGE vlan del vid 1 dev $dummydev
+	run_cmd $BRIDGE fdb get $test_mac br $brdev vlan 1
+	run_cmd $BRIDGE fdb del $test_mac dev $dummydev master vlan 1
+	run_cmd_fail $BRIDGE fdb get $test_mac br $brdev vlan 1
+
+	ip netns del $testns &>/dev/null
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: bridge fdb del"
+		return 1
+	fi
+
+	end_test "PASS: bridge fdb del"
+}
+
+kci_test_neigh_get()
+{
+	dstmac=de:ad:be:ef:13:37
+	dstip=10.0.2.4
+	dstip6=dead::2
+	local ret=0
+
+	run_cmd_grep 'ip neigh get' ip neigh help
+	if [ $? -ne 0 ];then
+		end_test "SKIP: fdb get tests: iproute2 too old"
+		return $ksft_skip
+	fi
+
+	# ipv4
+	run_cmd ip neigh add $dstip lladdr $dstmac dev "$devdummy"
+	run_cmd_grep "$dstmac" ip neigh get $dstip dev "$devdummy"
+	run_cmd ip neigh del $dstip lladdr $dstmac dev "$devdummy"
+
+	# ipv4 proxy
+	run_cmd ip neigh add proxy $dstip dev "$devdummy"
+	run_cmd_grep "$dstip" ip neigh get proxy $dstip dev "$devdummy"
+	run_cmd ip neigh del proxy $dstip dev "$devdummy"
+
+	# ipv6
+	run_cmd ip neigh add $dstip6 lladdr $dstmac dev "$devdummy"
+	run_cmd_grep "$dstmac" ip neigh get $dstip6 dev "$devdummy"
+	run_cmd ip neigh del $dstip6 lladdr $dstmac dev "$devdummy"
+
+	# ipv6 proxy
+	run_cmd ip neigh add proxy $dstip6 dev "$devdummy"
+	run_cmd_grep "$dstip6" ip neigh get proxy $dstip6 dev "$devdummy"
+	run_cmd ip neigh del proxy $dstip6 dev "$devdummy"
+
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: neigh get"
+		return 1
+	fi
+
+	end_test "PASS: neigh get"
+}
+
+kci_test_bridge_parent_id()
+{
+	local ret=0
+	sysfsnet=/sys/bus/netdevsim/devices/netdevsim
+	probed=false
+
+	if [ ! -w /sys/bus/netdevsim/new_device ] ; then
+		run_cmd modprobe -q netdevsim
+		if [ $ret -ne 0 ]; then
+			end_test "SKIP: bridge_parent_id can't load netdevsim"
+			return $ksft_skip
+		fi
+		probed=true
+	fi
+
+	echo "10 1" > /sys/bus/netdevsim/new_device
+	while [ ! -d ${sysfsnet}10 ] ; do :; done
+	echo "20 1" > /sys/bus/netdevsim/new_device
+	while [ ! -d ${sysfsnet}20 ] ; do :; done
+	udevadm settle
+	dev10=`ls ${sysfsnet}10/net/`
+	dev20=`ls ${sysfsnet}20/net/`
+	run_cmd ip link add name test-bond0 type bond mode 802.3ad
+	run_cmd ip link set dev $dev10 master test-bond0
+	run_cmd ip link set dev $dev20 master test-bond0
+	run_cmd ip link add name test-br0 type bridge
+	run_cmd ip link set dev test-bond0 master test-br0
+
+	# clean up any leftovers
+	ip link del dev test-br0
+	ip link del dev test-bond0
+	echo 20 > /sys/bus/netdevsim/del_device
+	echo 10 > /sys/bus/netdevsim/del_device
+	$probed && rmmod netdevsim
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: bridge_parent_id"
+		return 1
+	fi
+	end_test "PASS: bridge_parent_id"
+}
+
+address_get_proto()
+{
+	local addr=$1; shift
+
+	ip -N -j address show dev "$devdummy" |
+	    jq -e -r --arg addr "${addr%/*}" \
+	       '.[].addr_info[] | select(.local == $addr) | .protocol'
+}
+
+address_count()
+{
+	ip -N -j address show dev "$devdummy" "$@" |
+	    jq -e -r '[.[].addr_info[] | .local | select(. != null)] | length'
+}
+
+do_test_address_proto()
+{
+	local what=$1; shift
+	local addr=$1; shift
+	local addr2=${addr%/*}2/${addr#*/}
+	local addr3=${addr%/*}3/${addr#*/}
+	local proto
+	local count
+	local ret=0
+	local err
+
+	run_cmd_grep 'proto' ip address help
+	if [ $? -ne 0 ];then
+		end_test "SKIP: addr proto ${what}: iproute2 too old"
+		return $ksft_skip
+	fi
+
+	ip address add dev "$devdummy" "$addr3"
+	check_err $?
+	proto=$(address_get_proto "$addr3")
+	[[ "$proto" == null ]]
+	check_err $?
+
+	ip address add dev "$devdummy" "$addr2" proto 0x99
+	check_err $?
+	proto=$(address_get_proto "$addr2")
+	[[ "$proto" == 0x99 ]]
+	check_err $?
+
+	ip address add dev "$devdummy" "$addr" proto 0xab
+	check_err $?
+	proto=$(address_get_proto "$addr")
+	[[ "$proto" == 0xab ]]
+	check_err $?
+
+	ip address replace dev "$devdummy" "$addr" proto 0x11
+	proto=$(address_get_proto "$addr")
+	check_err $?
+	[[ "$proto" == 0x11 ]]
+	check_err $?
+
+	count=$(address_count)
+	check_err $?
+	(( count >= 3 )) # $addr, $addr2 and $addr3 plus any kernel addresses
+	check_err $?
+
+	count=$(address_count proto 0)
+	check_err $?
+	(( count == 1 )) # just $addr3
+	check_err $?
+
+	count=$(address_count proto 0x11)
+	check_err $?
+	(( count == 2 )) # $addr and $addr3
+	check_err $?
+
+	count=$(address_count proto 0xab)
+	check_err $?
+	(( count == 1 )) # just $addr3
+	check_err $?
+
+	ip address del dev "$devdummy" "$addr"
+	ip address del dev "$devdummy" "$addr2"
+	ip address del dev "$devdummy" "$addr3"
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: address proto $what"
+		return 1
+	fi
+	end_test "PASS: address proto $what"
+}
+
+kci_test_address_proto()
+{
+	local ret=0
+
+	do_test_address_proto IPv4 192.0.2.1/28
+	check_err $?
+
+	do_test_address_proto IPv6 2001:db8:1::1/64
+	check_err $?
+
+	return $ret
+}
+
+kci_test_enslave_bonding()
+{
+	local bond="bond123"
+	local ret=0
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP bonding tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	run_cmd ip -netns $testns link add dev $bond type bond mode balance-rr
+	run_cmd ip -netns $testns link add dev $devdummy type dummy
+	run_cmd ip -netns $testns link set dev $devdummy up
+	run_cmd ip -netns $testns link set dev $devdummy master $bond down
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: initially up interface added to a bond and set down"
+		ip netns del "$testns"
+		return 1
+	fi
+
+	end_test "PASS: enslave interface in a bond"
+	ip netns del "$testns"
+}
+
+# Called to validate the addresses on $IFNAME:
+#
+# 1. Every `temporary` address must have a matching `mngtmpaddr`
+# 2. Every `mngtmpaddr` address must have some un`deprecated` `temporary`
+#
+# If the mngtmpaddr or tempaddr checking failed, return 0 and stop slowwait
+validate_mngtmpaddr()
+{
+	local dev=$1
+	local prefix=""
+	local addr_list=$(ip -j -n $testns addr show dev ${dev})
+	local temp_addrs=$(echo ${addr_list} | \
+		jq -r '.[].addr_info[] | select(.temporary == true) | .local')
+	local mng_prefixes=$(echo ${addr_list} | \
+		jq -r '.[].addr_info[] | select(.mngtmpaddr == true) | .local' | \
+		cut -d: -f1-4 | tr '\n' ' ')
+	local undep_prefixes=$(echo ${addr_list} | \
+		jq -r '.[].addr_info[] | select(.temporary == true and .deprecated != true) | .local' | \
+		cut -d: -f1-4 | tr '\n' ' ')
+
+	# 1. All temporary addresses (temp and dep) must have a matching mngtmpaddr
+	for address in ${temp_addrs}; do
+		prefix=$(echo ${address} | cut -d: -f1-4)
+		if [[ ! " ${mng_prefixes} " =~ " $prefix " ]]; then
+			check_err 1 "FAIL: Temporary $address with no matching mngtmpaddr!";
+			return 0
+		fi
+	done
+
+	# 2. All mngtmpaddr addresses must have a temporary address (not dep)
+	for prefix in ${mng_prefixes}; do
+		if [[ ! " ${undep_prefixes} " =~ " $prefix " ]]; then
+			check_err 1 "FAIL: No undeprecated temporary in $prefix!";
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+kci_test_mngtmpaddr()
+{
+	local ret=0
+
+	setup_ns testns
+	if [ $? -ne 0 ]; then
+		end_test "SKIP mngtmpaddr tests: cannot add net namespace $testns"
+		return $ksft_skip
+	fi
+
+	# 1. Create a dummy Ethernet interface
+	run_cmd ip -n $testns link add ${devdummy} type dummy
+	run_cmd ip -n $testns link set ${devdummy} up
+	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.use_tempaddr=1
+	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_prefered_lft=10
+	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.temp_valid_lft=25
+	run_cmd ip netns exec $testns sysctl -w net.ipv6.conf.${devdummy}.max_desync_factor=1
+
+	# 2. Create several mngtmpaddr addresses on that interface.
+	# with temp_*_lft configured to be pretty short (10 and 35 seconds
+	# for prefer/valid respectively)
+	for i in $(seq 1 9); do
+		run_cmd ip -n $testns addr add 2001:db8:7e57:${i}::1/64 mngtmpaddr dev ${devdummy}
+	done
+
+	# 3. Confirm that a preferred temporary address exists for each mngtmpaddr
+	# address at all times, polling once per second for 30 seconds.
+	slowwait 30 validate_mngtmpaddr ${devdummy}
+
+	# 4. Delete each mngtmpaddr address, one at a time (alternating between
+	# deleting and merely un-mngtmpaddr-ing), and confirm that the other
+	# mngtmpaddr addresses still have preferred temporaries.
+	for i in $(seq 1 9); do
+		(( $i % 4 == 0 )) && mng_flag="mngtmpaddr" || mng_flag=""
+		if (( $i % 2 == 0 )); then
+			run_cmd ip -n $testns addr del 2001:db8:7e57:${i}::1/64 $mng_flag dev ${devdummy}
+		else
+			run_cmd ip -n $testns addr change 2001:db8:7e57:${i}::1/64 dev ${devdummy}
+		fi
+		# the temp addr should be deleted
+		validate_mngtmpaddr ${devdummy}
+	done
+
+	if [ $ret -ne 0 ]; then
+		end_test "FAIL: mngtmpaddr add/remove incorrect"
+	else
+		end_test "PASS: mngtmpaddr add/remove correctly"
+	fi
+
+	ip netns del "$testns"
+	return $ret
+}
+
+kci_test_operstate()
+{
+	local ret=0
+
+	# Check that it is possible to set operational state during device
+	# creation and that it is preserved when the administrative state of
+	# the device is toggled.
+	run_cmd ip link add name vx0 up state up type vxlan id 10010 dstport 4789
+	run_cmd_grep "state UP" ip link show dev vx0
+	run_cmd ip link set dev vx0 down
+	run_cmd_grep "state DOWN" ip link show dev vx0
+	run_cmd ip link set dev vx0 up
+	run_cmd_grep "state UP" ip link show dev vx0
+
+	run_cmd ip link del dev vx0
+
+	# Check that it is possible to set the operational state of the device
+	# after creation.
+	run_cmd ip link add name vx0 up type vxlan id 10010 dstport 4789
+	run_cmd_grep "state UNKNOWN" ip link show dev vx0
+	run_cmd ip link set dev vx0 state up
+	run_cmd_grep "state UP" ip link show dev vx0
+
+	run_cmd ip link del dev vx0
+
+	if [ "$ret" -ne 0 ]; then
+		end_test "FAIL: operstate"
+		return 1
+	fi
+
+	end_test "PASS: operstate"
+}
+
+kci_test_rtnl()
+{
+	local current_test
+	local ret=0
+
+	kci_add_dummy
+	if [ $ret -ne 0 ];then
+		end_test "FAIL: cannot add dummy interface"
+		return 1
+	fi
+
+	for current_test in ${TESTS:-$ALL_TESTS}; do
+		$current_test
+		check_err $?
+	done
+
+	kci_del_dummy
+	return $ret
+}
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $(echo $ALL_TESTS))
+        -v          Verbose mode (show commands and output)
+        -P          Pause after every test
+        -p          Pause after every failing test before cleanup (for debugging)
+EOF
+}
+
+require_command jq
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+	end_test "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+for x in ip tc;do
+	$x -Version 2>/dev/null >/dev/null
+	if [ $? -ne 0 ];then
+		end_test "SKIP: Could not run test without the $x tool"
+		exit $ksft_skip
+	fi
+done
+
+while getopts t:hvpP o; do
+	case $o in
+		t) TESTS=$OPTARG;;
+		v) VERBOSE=1;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+[ $PAUSE = "yes" ] && PAUSE_ON_FAIL="no"
+
+kci_test_rtnl
+
+exit $?
diff --git a/tools/testing/selftests/net/rtnetlink_notification.sh b/tools/testing/selftests/net/rtnetlink_notification.sh
new file mode 100755
index 000000000000..3f9780232bd6
--- /dev/null
+++ b/tools/testing/selftests/net/rtnetlink_notification.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking rtnetlink notification callpaths, and get as much
+# coverage as possible.
+#
+# set -e
+
+ALL_TESTS="
+	kci_test_mcast_addr_notification
+	kci_test_anycast_addr_notification
+"
+
+source lib.sh
+test_dev="test-dummy1"
+
+kci_test_mcast_addr_notification()
+{
+	RET=0
+	local tmpfile
+	local monitor_pid
+	local match_result
+
+	tmpfile=$(mktemp)
+	defer rm "$tmpfile"
+
+	ip monitor maddr > $tmpfile &
+	monitor_pid=$!
+	defer kill_process "$monitor_pid"
+
+	sleep 1
+
+	if [ ! -e "/proc/$monitor_pid" ]; then
+		RET=$ksft_skip
+		log_test "mcast addr notification: iproute2 too old"
+		return $RET
+	fi
+
+	ip link add name "$test_dev" type dummy
+	check_err $? "failed to add dummy interface"
+	ip link set "$test_dev" up
+	check_err $? "failed to set dummy interface up"
+	ip link del dev "$test_dev"
+	check_err $? "Failed to delete dummy interface"
+	sleep 1
+
+	# There should be 4 line matches as follows.
+	# 13: test-dummy1    inet6 mcast ff02::1 scope global 
+	# 13: test-dummy1    inet mcast 224.0.0.1 scope global 
+	# Deleted 13: test-dummy1    inet mcast 224.0.0.1 scope global 
+	# Deleted 13: test-dummy1    inet6 mcast ff02::1 scope global 
+	match_result=$(grep -cE "$test_dev.*(224.0.0.1|ff02::1)" "$tmpfile")
+	if [ "$match_result" -ne 4 ]; then
+		RET=$ksft_fail
+	fi
+	log_test "mcast addr notification: Expected 4 matches, got $match_result"
+	return $RET
+}
+
+kci_test_anycast_addr_notification()
+{
+	RET=0
+	local tmpfile
+	local monitor_pid
+	local match_result
+
+	tmpfile=$(mktemp)
+	defer rm "$tmpfile"
+
+	ip monitor acaddress > "$tmpfile" &
+	monitor_pid=$!
+	defer kill_process "$monitor_pid"
+	sleep 1
+
+	if [ ! -e "/proc/$monitor_pid" ]; then
+		RET=$ksft_skip
+		log_test "anycast addr notification: iproute2 too old"
+		return "$RET"
+	fi
+
+	ip link add name "$test_dev" type dummy
+	check_err $? "failed to add dummy interface"
+	ip link set "$test_dev" up
+	check_err $? "failed to set dummy interface up"
+	sysctl -qw net.ipv6.conf."$test_dev".forwarding=1
+	ip link del dev "$test_dev"
+	check_err $? "Failed to delete dummy interface"
+	sleep 1
+
+	# There should be 2 line matches as follows.
+	# 9: dummy2    inet6 any fe80:: scope global
+	# Deleted 9: dummy2    inet6 any fe80:: scope global
+	match_result=$(grep -cE "$test_dev.*(fe80::)" "$tmpfile")
+	if [ "$match_result" -ne 2 ]; then
+		RET=$ksft_fail
+	fi
+	log_test "anycast addr notification: Expected 2 matches, got $match_result"
+	return "$RET"
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+	RET=$ksft_skip
+	log_test "need root privileges"
+	exit $RET
+fi
+
+require_command ip
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests
index 5246e782d6e8..a59cb6a3c4f5 100755
--- a/tools/testing/selftests/net/run_afpackettests
+++ b/tools/testing/selftests/net/run_afpackettests
@@ -1,16 +1,22 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
 
 if [ $(id -u) != 0 ]; then
 	echo $msg must be run as root >&2
-	exit 0
+	exit $ksft_skip
 fi
 
+ret=0
 echo "--------------------"
 echo "running psock_fanout test"
 echo "--------------------"
-./psock_fanout
+./in_netns.sh ./psock_fanout
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
+	ret=1
 else
 	echo "[PASS]"
 fi
@@ -18,9 +24,26 @@ fi
 echo "--------------------"
 echo "running psock_tpacket test"
 echo "--------------------"
-./psock_tpacket
+if [ -f /proc/kallsyms ]; then
+	./in_netns.sh ./psock_tpacket
+	if [ $? -ne 0 ]; then
+		echo "[FAIL]"
+		ret=1
+	else
+		echo "[PASS]"
+	fi
+else
+	echo "[SKIP] CONFIG_KALLSYMS not enabled"
+fi
+
+echo "--------------------"
+echo "running txring_overwrite test"
+echo "--------------------"
+./in_netns.sh ./txring_overwrite
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
+	ret=1
 else
 	echo "[PASS]"
 fi
+exit $ret
diff --git a/tools/testing/selftests/net/run_netsocktests b/tools/testing/selftests/net/run_netsocktests
index c09a682df56a..14e41faf2c57 100755
--- a/tools/testing/selftests/net/run_netsocktests
+++ b/tools/testing/selftests/net/run_netsocktests
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "--------------------"
 echo "running socket test"
@@ -6,7 +7,7 @@ echo "--------------------"
 ./socket
 if [ $? -ne 0 ]; then
 	echo "[FAIL]"
+	exit 1
 else
 	echo "[PASS]"
 fi
-
diff --git a/tools/testing/selftests/net/rxtimestamp.c b/tools/testing/selftests/net/rxtimestamp.c
new file mode 100644
index 000000000000..b81ed0352d6c
--- /dev/null
+++ b/tools/testing/selftests/net/rxtimestamp.c
@@ -0,0 +1,448 @@
+#include <errno.h>
+#include <error.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <asm/types.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+
+#include "kselftest.h"
+
+struct options {
+	int so_timestamp;
+	int so_timestampns;
+	int so_timestamping;
+};
+
+struct tstamps {
+	bool tstamp;
+	bool tstampns;
+	bool swtstamp;
+	bool hwtstamp;
+};
+
+struct socket_type {
+	char *friendly_name;
+	int type;
+	int protocol;
+	bool enabled;
+};
+
+struct test_case {
+	struct options sockopt;
+	struct tstamps expected;
+	bool enabled;
+	bool warn_on_fail;
+};
+
+struct sof_flag {
+	int mask;
+	char *name;
+};
+
+static struct sof_flag sof_flags[] = {
+#define SOF_FLAG(f) { f, #f }
+	SOF_FLAG(SOF_TIMESTAMPING_SOFTWARE),
+	SOF_FLAG(SOF_TIMESTAMPING_RX_SOFTWARE),
+	SOF_FLAG(SOF_TIMESTAMPING_RX_HARDWARE),
+	SOF_FLAG(SOF_TIMESTAMPING_OPT_RX_FILTER),
+	SOF_FLAG(SOF_TIMESTAMPING_RAW_HARDWARE),
+};
+
+static struct socket_type socket_types[] = {
+	{ "ip",		SOCK_RAW,	IPPROTO_EGP },
+	{ "udp",	SOCK_DGRAM,	IPPROTO_UDP },
+	{ "tcp",	SOCK_STREAM,	IPPROTO_TCP },
+};
+
+static struct test_case test_cases[] = {
+	{ {}, {} },
+	{
+		{ .so_timestamp = 1 },
+		{ .tstamp = true }
+	},
+	{
+		{ .so_timestampns = 1 },
+		{ .tstampns = true }
+	},
+	{
+		{ .so_timestamp = 1, .so_timestampns = 1 },
+		{ .tstampns = true }
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE },
+		{}
+	},
+	{
+		/* Loopback device does not support hw timestamps. */
+		{ .so_timestamping = SOF_TIMESTAMPING_RX_HARDWARE },
+		{}
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_SOFTWARE },
+		.warn_on_fail = true
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_RX_SOFTWARE
+			| SOF_TIMESTAMPING_RX_HARDWARE },
+		{}
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_RAW_HARDWARE
+			| SOF_TIMESTAMPING_OPT_RX_FILTER },
+		{}
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+			| SOF_TIMESTAMPING_OPT_RX_FILTER },
+		{}
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+			| SOF_TIMESTAMPING_RX_SOFTWARE
+			| SOF_TIMESTAMPING_OPT_RX_FILTER },
+		{ .swtstamp = true }
+	},
+	{
+		{ .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+			| SOF_TIMESTAMPING_RX_SOFTWARE },
+		{ .swtstamp = true }
+	},
+	{
+		{ .so_timestamp = 1, .so_timestamping = SOF_TIMESTAMPING_SOFTWARE
+			| SOF_TIMESTAMPING_RX_SOFTWARE },
+		{ .tstamp = true, .swtstamp = true }
+	},
+};
+
+static struct option long_options[] = {
+	{ "list_tests", no_argument, 0, 'l' },
+	{ "test_num", required_argument, 0, 'n' },
+	{ "op_size", required_argument, 0, 's' },
+	{ "tcp", no_argument, 0, 't' },
+	{ "udp", no_argument, 0, 'u' },
+	{ "ip", no_argument, 0, 'i' },
+	{ "strict", no_argument, 0, 'S' },
+	{ "ipv4", no_argument, 0, '4' },
+	{ "ipv6", no_argument, 0, '6' },
+	{ NULL, 0, NULL, 0 },
+};
+
+static int next_port = 19999;
+static int op_size = 10 * 1024;
+
+void print_test_case(struct test_case *t)
+{
+	int f = 0;
+
+	printf("sockopts {");
+	if (t->sockopt.so_timestamp)
+		printf(" SO_TIMESTAMP ");
+	if (t->sockopt.so_timestampns)
+		printf(" SO_TIMESTAMPNS ");
+	if (t->sockopt.so_timestamping) {
+		printf(" SO_TIMESTAMPING: {");
+		for (f = 0; f < ARRAY_SIZE(sof_flags); f++)
+			if (t->sockopt.so_timestamping & sof_flags[f].mask)
+				printf(" %s |", sof_flags[f].name);
+		printf("}");
+	}
+	printf("} expected cmsgs: {");
+	if (t->expected.tstamp)
+		printf(" SCM_TIMESTAMP ");
+	if (t->expected.tstampns)
+		printf(" SCM_TIMESTAMPNS ");
+	if (t->expected.swtstamp || t->expected.hwtstamp) {
+		printf(" SCM_TIMESTAMPING {");
+		if (t->expected.swtstamp)
+			printf("0");
+		if (t->expected.swtstamp && t->expected.hwtstamp)
+			printf(",");
+		if (t->expected.hwtstamp)
+			printf("2");
+		printf("}");
+	}
+	printf("}\n");
+}
+
+void do_send(int src)
+{
+	int r;
+	char *buf = malloc(op_size);
+
+	memset(buf, 'z', op_size);
+	r = write(src, buf, op_size);
+	if (r < 0)
+		error(1, errno, "Failed to sendmsg");
+
+	free(buf);
+}
+
+bool do_recv(int rcv, int read_size, struct tstamps expected)
+{
+	const int CMSG_SIZE = 1024;
+
+	struct scm_timestamping *ts;
+	struct tstamps actual = {};
+	char cmsg_buf[CMSG_SIZE];
+	struct iovec recv_iov;
+	struct cmsghdr *cmsg;
+	bool failed = false;
+	struct msghdr hdr;
+	int flags = 0;
+	int r;
+
+	memset(&hdr, 0, sizeof(hdr));
+	hdr.msg_iov = &recv_iov;
+	hdr.msg_iovlen = 1;
+	recv_iov.iov_base = malloc(read_size);
+	recv_iov.iov_len = read_size;
+
+	hdr.msg_control = cmsg_buf;
+	hdr.msg_controllen = sizeof(cmsg_buf);
+
+	r = recvmsg(rcv, &hdr, flags);
+	if (r < 0)
+		error(1, errno, "Failed to recvmsg");
+	if (r != read_size)
+		error(1, 0, "Only received %d bytes of payload.", r);
+
+	if (hdr.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
+		error(1, 0, "Message was truncated.");
+
+	for (cmsg = CMSG_FIRSTHDR(&hdr); cmsg != NULL;
+	     cmsg = CMSG_NXTHDR(&hdr, cmsg)) {
+		if (cmsg->cmsg_level != SOL_SOCKET)
+			error(1, 0, "Unexpected cmsg_level %d",
+			      cmsg->cmsg_level);
+		switch (cmsg->cmsg_type) {
+		case SCM_TIMESTAMP:
+			actual.tstamp = true;
+			break;
+		case SCM_TIMESTAMPNS:
+			actual.tstampns = true;
+			break;
+		case SCM_TIMESTAMPING:
+			ts = (struct scm_timestamping *)CMSG_DATA(cmsg);
+			actual.swtstamp = !!ts->ts[0].tv_sec;
+			if (ts->ts[1].tv_sec != 0)
+				error(0, 0, "ts[1] should not be set.");
+			actual.hwtstamp = !!ts->ts[2].tv_sec;
+			break;
+		default:
+			error(1, 0, "Unexpected cmsg_type %d", cmsg->cmsg_type);
+		}
+	}
+
+#define VALIDATE(field) \
+	do { \
+		if (expected.field != actual.field) { \
+			if (expected.field) \
+				error(0, 0, "Expected " #field " to be set."); \
+			else \
+				error(0, 0, \
+				      "Expected " #field " to not be set."); \
+			failed = true; \
+		} \
+	} while (0)
+
+	VALIDATE(tstamp);
+	VALIDATE(tstampns);
+	VALIDATE(swtstamp);
+	VALIDATE(hwtstamp);
+#undef VALIDATE
+
+	free(recv_iov.iov_base);
+
+	return failed;
+}
+
+void config_so_flags(int rcv, struct options o)
+{
+	int on = 1;
+
+	if (setsockopt(rcv, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0)
+		error(1, errno, "Failed to enable SO_REUSEADDR");
+
+	if (o.so_timestamp &&
+	    setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMP,
+		       &o.so_timestamp, sizeof(o.so_timestamp)) < 0)
+		error(1, errno, "Failed to enable SO_TIMESTAMP");
+
+	if (o.so_timestampns &&
+	    setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPNS,
+		       &o.so_timestampns, sizeof(o.so_timestampns)) < 0)
+		error(1, errno, "Failed to enable SO_TIMESTAMPNS");
+
+	if (o.so_timestamping &&
+	    setsockopt(rcv, SOL_SOCKET, SO_TIMESTAMPING,
+		       &o.so_timestamping, sizeof(o.so_timestamping)) < 0)
+		error(1, errno, "Failed to set SO_TIMESTAMPING");
+}
+
+bool run_test_case(struct socket_type *s, int test_num, char ip_version,
+		   bool strict)
+{
+	union {
+		struct sockaddr_in6 addr6;
+		struct sockaddr_in addr4;
+		struct sockaddr addr_un;
+	} addr;
+	int read_size = op_size;
+	int src, dst, rcv, port;
+	socklen_t addr_size;
+	bool failed = false;
+
+	port = (s->type == SOCK_RAW) ? 0 : next_port++;
+	memset(&addr, 0, sizeof(addr));
+	if (ip_version == '4') {
+		addr.addr4.sin_family = AF_INET;
+		addr.addr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		addr.addr4.sin_port = htons(port);
+		addr_size = sizeof(addr.addr4);
+		if (s->type == SOCK_RAW)
+			read_size += 20;  /* for IPv4 header */
+	} else {
+		addr.addr6.sin6_family = AF_INET6;
+		addr.addr6.sin6_addr = in6addr_loopback;
+		addr.addr6.sin6_port = htons(port);
+		addr_size = sizeof(addr.addr6);
+	}
+	printf("Starting testcase %d over ipv%c...\n", test_num, ip_version);
+	src = socket(addr.addr_un.sa_family, s->type,
+		     s->protocol);
+	if (src < 0)
+		error(1, errno, "Failed to open src socket");
+
+	dst = socket(addr.addr_un.sa_family, s->type,
+		     s->protocol);
+	if (dst < 0)
+		error(1, errno, "Failed to open dst socket");
+
+	if (bind(dst, &addr.addr_un, addr_size) < 0)
+		error(1, errno, "Failed to bind to port %d", port);
+
+	if (s->type == SOCK_STREAM && (listen(dst, 1) < 0))
+		error(1, errno, "Failed to listen");
+
+	if (connect(src, &addr.addr_un, addr_size) < 0)
+		error(1, errno, "Failed to connect");
+
+	if (s->type == SOCK_STREAM) {
+		rcv = accept(dst, NULL, NULL);
+		if (rcv < 0)
+			error(1, errno, "Failed to accept");
+		close(dst);
+	} else {
+		rcv = dst;
+	}
+
+	config_so_flags(rcv, test_cases[test_num].sockopt);
+	usleep(20000); /* setsockopt for SO_TIMESTAMPING is asynchronous */
+	do_send(src);
+
+	failed = do_recv(rcv, read_size, test_cases[test_num].expected);
+
+	close(rcv);
+	close(src);
+
+	if (failed) {
+		printf("FAILURE in testcase %d over ipv%c ", test_num,
+		       ip_version);
+		print_test_case(&test_cases[test_num]);
+		if (!strict && test_cases[test_num].warn_on_fail)
+			failed = false;
+	}
+	return failed;
+}
+
+int main(int argc, char **argv)
+{
+	bool all_protocols = true;
+	bool all_tests = true;
+	bool cfg_ipv4 = false;
+	bool cfg_ipv6 = false;
+	bool strict = false;
+	int arg_index = 0;
+	int failures = 0;
+	int s, t, opt;
+
+	while ((opt = getopt_long(argc, argv, "", long_options,
+				  &arg_index)) != -1) {
+		switch (opt) {
+		case 'l':
+			for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
+				printf("%d\t", t);
+				print_test_case(&test_cases[t]);
+			}
+			return 0;
+		case 'n':
+			t = atoi(optarg);
+			if (t >= ARRAY_SIZE(test_cases))
+				error(1, 0, "Invalid test case: %d", t);
+			all_tests = false;
+			test_cases[t].enabled = true;
+			break;
+		case 's':
+			op_size = atoi(optarg);
+			break;
+		case 't':
+			all_protocols = false;
+			socket_types[2].enabled = true;
+			break;
+		case 'u':
+			all_protocols = false;
+			socket_types[1].enabled = true;
+			break;
+		case 'i':
+			all_protocols = false;
+			socket_types[0].enabled = true;
+			break;
+		case 'S':
+			strict = true;
+			break;
+		case '4':
+			cfg_ipv4 = true;
+			break;
+		case '6':
+			cfg_ipv6 = true;
+			break;
+		default:
+			error(1, 0, "Failed to parse parameters.");
+		}
+	}
+
+	for (s = 0; s < ARRAY_SIZE(socket_types); s++) {
+		if (!all_protocols && !socket_types[s].enabled)
+			continue;
+
+		printf("Testing %s...\n", socket_types[s].friendly_name);
+		for (t = 0; t < ARRAY_SIZE(test_cases); t++) {
+			if (!all_tests && !test_cases[t].enabled)
+				continue;
+			if (cfg_ipv4 || !cfg_ipv6)
+				if (run_test_case(&socket_types[s], t, '4',
+						  strict))
+					failures++;
+			if (cfg_ipv6 || !cfg_ipv4)
+				if (run_test_case(&socket_types[s], t, '6',
+						  strict))
+					failures++;
+		}
+	}
+	if (!failures)
+		printf("PASSED.\n");
+	return failures;
+}
diff --git a/tools/testing/selftests/net/rxtimestamp.sh b/tools/testing/selftests/net/rxtimestamp.sh
new file mode 100755
index 000000000000..91631e88bf46
--- /dev/null
+++ b/tools/testing/selftests/net/rxtimestamp.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+./in_netns.sh ./rxtimestamp $@
diff --git a/tools/testing/selftests/net/sample_map_ret0.bpf.c b/tools/testing/selftests/net/sample_map_ret0.bpf.c
new file mode 100644
index 000000000000..43ca92594926
--- /dev/null
+++ b/tools/testing/selftests/net/sample_map_ret0.bpf.c
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
+#include <linux/bpf.h>
+#include <bpf/bpf_helpers.h>
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, __u32);
+	__type(value, long);
+	__uint(max_entries, 2);
+} htab SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, long);
+	__uint(max_entries, 2);
+} array SEC(".maps");
+
+/* Sample program which should always load for testing control paths. */
+SEC("xdp") int func()
+{
+	__u64 key64 = 0;
+	__u32 key = 0;
+	long *value;
+
+	value = bpf_map_lookup_elem(&htab, &key);
+	if (!value)
+		return 1;
+	value = bpf_map_lookup_elem(&array, &key64);
+	if (!value)
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/sample_ret0.bpf.c b/tools/testing/selftests/net/sample_ret0.bpf.c
new file mode 100644
index 000000000000..1df5ca98bb65
--- /dev/null
+++ b/tools/testing/selftests/net/sample_ret0.bpf.c
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */
+
+#define SEC(name) __attribute__((section(name), used))
+
+/* Sample program which should always load for testing control paths. */
+SEC("xdp")
+int func()
+{
+	return 0;
+}
diff --git a/tools/testing/selftests/net/sctp_hello.c b/tools/testing/selftests/net/sctp_hello.c
new file mode 100644
index 000000000000..a04dac0b8027
--- /dev/null
+++ b/tools/testing/selftests/net/sctp_hello.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+static void set_addr(struct sockaddr_storage *ss, char *ip, char *port, int *len)
+{
+	if (ss->ss_family == AF_INET) {
+		struct sockaddr_in *a = (struct sockaddr_in *)ss;
+
+		a->sin_addr.s_addr = inet_addr(ip);
+		a->sin_port = htons(atoi(port));
+		*len = sizeof(*a);
+	} else {
+		struct sockaddr_in6 *a = (struct sockaddr_in6 *)ss;
+
+		a->sin6_family = AF_INET6;
+		inet_pton(AF_INET6, ip, &a->sin6_addr);
+		a->sin6_port = htons(atoi(port));
+		*len = sizeof(*a);
+	}
+}
+
+static int do_client(int argc, char *argv[])
+{
+	struct sockaddr_storage ss;
+	int csk, ret, len;
+
+	if (argc < 5) {
+		printf("%s client -4|6 IP PORT [IP PORT]\n", argv[0]);
+		return -1;
+	}
+
+	bzero((void *)&ss, sizeof(ss));
+	ss.ss_family = !strcmp(argv[2], "-4") ? AF_INET : AF_INET6;
+	csk = socket(ss.ss_family, SOCK_STREAM, IPPROTO_SCTP);
+	if (csk < 0) {
+		printf("failed to create socket\n");
+		return -1;
+	}
+
+	if (argc >= 7) {
+		set_addr(&ss, argv[5], argv[6], &len);
+		ret = bind(csk, (struct sockaddr *)&ss, len);
+		if (ret < 0) {
+			printf("failed to bind to address\n");
+			return -1;
+		}
+	}
+
+	set_addr(&ss, argv[3], argv[4], &len);
+	ret = connect(csk, (struct sockaddr *)&ss, len);
+	if (ret < 0)
+		return -1;
+
+	recv(csk, NULL, 0, 0);
+	close(csk);
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_storage ss;
+	int lsk, csk, ret, len;
+
+	if (argc < 2 || (strcmp(argv[1], "server") && strcmp(argv[1], "client"))) {
+		printf("%s server|client ...\n", argv[0]);
+		return -1;
+	}
+
+	if (!strcmp(argv[1], "client"))
+		return do_client(argc, argv);
+
+	if (argc < 5) {
+		printf("%s server -4|6 IP PORT [IFACE]\n", argv[0]);
+		return -1;
+	}
+
+	ss.ss_family = !strcmp(argv[2], "-4") ? AF_INET : AF_INET6;
+	lsk = socket(ss.ss_family, SOCK_STREAM, IPPROTO_SCTP);
+	if (lsk < 0) {
+		printf("failed to create lsk\n");
+		return -1;
+	}
+
+	if (argc >= 6) {
+		ret = setsockopt(lsk, SOL_SOCKET, SO_BINDTODEVICE,
+				 argv[5], strlen(argv[5]) + 1);
+		if (ret < 0) {
+			printf("failed to bind to device\n");
+			return -1;
+		}
+	}
+
+	set_addr(&ss, argv[3], argv[4], &len);
+	ret = bind(lsk, (struct sockaddr *)&ss, len);
+	if (ret < 0) {
+		printf("failed to bind to address\n");
+		return -1;
+	}
+
+	ret = listen(lsk, 5);
+	if (ret < 0) {
+		printf("failed to listen on port\n");
+		return -1;
+	}
+
+	csk = accept(lsk, (struct sockaddr *)NULL, (socklen_t *)NULL);
+	if (csk < 0) {
+		printf("failed to accept new client\n");
+		return -1;
+	}
+
+	close(csk);
+	close(lsk);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/sctp_vrf.sh b/tools/testing/selftests/net/sctp_vrf.sh
new file mode 100755
index 000000000000..667b211aa8a1
--- /dev/null
+++ b/tools/testing/selftests/net/sctp_vrf.sh
@@ -0,0 +1,189 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Testing For SCTP VRF.
+# TOPO: CLIENT_NS1 (veth1) <---> (veth1) -> vrf_s1
+#                                                  SERVER_NS
+#       CLIENT_NS2 (veth1) <---> (veth2) -> vrf_s2
+
+source lib.sh
+CLIENT_IP4="10.0.0.1"
+CLIENT_IP6="2000::1"
+CLIENT_PORT=1234
+
+SERVER_IP4="10.0.0.2"
+SERVER_IP6="2000::2"
+SERVER_PORT=1234
+
+setup() {
+	modprobe sctp
+	modprobe sctp_diag
+	setup_ns CLIENT_NS1 CLIENT_NS2 SERVER_NS
+
+	ip net exec $CLIENT_NS1 sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip net exec $CLIENT_NS2 sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip net exec $SERVER_NS sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -n $SERVER_NS link add veth1 type veth peer name veth1 netns $CLIENT_NS1
+	ip -n $SERVER_NS link add veth2 type veth peer name veth1 netns $CLIENT_NS2
+
+	ip -n $CLIENT_NS1 link set veth1 up
+	ip -n $CLIENT_NS1 addr add $CLIENT_IP4/24 dev veth1
+	ip -n $CLIENT_NS1 addr add $CLIENT_IP6/24 dev veth1
+
+	ip -n $CLIENT_NS2 link set veth1 up
+	ip -n $CLIENT_NS2 addr add $CLIENT_IP4/24 dev veth1
+	ip -n $CLIENT_NS2 addr add $CLIENT_IP6/24 dev veth1
+
+	ip -n $SERVER_NS link add dummy1 type dummy
+	ip -n $SERVER_NS link set dummy1 up
+	ip -n $SERVER_NS link add vrf-1 type vrf table 10
+	ip -n $SERVER_NS link add vrf-2 type vrf table 20
+	ip -n $SERVER_NS link set vrf-1 up
+	ip -n $SERVER_NS link set vrf-2 up
+	ip -n $SERVER_NS link set veth1 master vrf-1
+	ip -n $SERVER_NS link set veth2 master vrf-2
+
+	ip -n $SERVER_NS addr add $SERVER_IP4/24 dev dummy1
+	ip -n $SERVER_NS addr add $SERVER_IP4/24 dev veth1
+	ip -n $SERVER_NS addr add $SERVER_IP4/24 dev veth2
+	ip -n $SERVER_NS addr add $SERVER_IP6/24 dev dummy1
+	ip -n $SERVER_NS addr add $SERVER_IP6/24 dev veth1
+	ip -n $SERVER_NS addr add $SERVER_IP6/24 dev veth2
+
+	ip -n $SERVER_NS link set veth1 up
+	ip -n $SERVER_NS link set veth2 up
+	ip -n $SERVER_NS route add table 10 $CLIENT_IP4 dev veth1 src $SERVER_IP4
+	ip -n $SERVER_NS route add table 20 $CLIENT_IP4 dev veth2 src $SERVER_IP4
+	ip -n $SERVER_NS route add $CLIENT_IP4 dev veth1 src $SERVER_IP4
+	ip -n $SERVER_NS route add table 10 $CLIENT_IP6 dev veth1 src $SERVER_IP6
+	ip -n $SERVER_NS route add table 20 $CLIENT_IP6 dev veth2 src $SERVER_IP6
+	ip -n $SERVER_NS route add $CLIENT_IP6 dev veth1 src $SERVER_IP6
+}
+
+cleanup() {
+	wait_client $CLIENT_NS1
+	wait_client $CLIENT_NS2
+	stop_server
+	cleanup_ns $CLIENT_NS1 $CLIENT_NS2 $SERVER_NS
+}
+
+start_server() {
+	local IFACE=$1
+	local CNT=0
+
+	ip netns exec $SERVER_NS ./sctp_hello server $AF $SERVER_IP $SERVER_PORT $IFACE &
+	disown
+	until ip netns exec $SERVER_NS ss -SlH | grep -q "$IFACE"; do
+		[ $((CNT++)) -eq 30 ] && { RET=3; return $RET; }
+		sleep 0.1
+	done
+}
+
+stop_server() {
+	local CNT=0
+
+	ip netns exec $SERVER_NS pkill sctp_hello
+	while ip netns exec $SERVER_NS ss -SaH | grep -q .; do
+		[ $((CNT++)) -eq 30 ] && break
+		sleep 0.1
+	done
+}
+
+wait_client() {
+	local CLIENT_NS=$1
+	local CNT=0
+
+	while ip netns exec $CLIENT_NS ss -SaH | grep -q .; do
+		[ $((CNT++)) -eq 30 ] && break
+		sleep 0.1
+	done
+}
+
+do_test() {
+	local CLIENT_NS=$1
+	local IFACE=$2
+
+	start_server $IFACE || return $RET
+	timeout 3 ip netns exec $CLIENT_NS ./sctp_hello client $AF \
+		$SERVER_IP $SERVER_PORT $CLIENT_IP $CLIENT_PORT
+	RET=$?
+	wait_client $CLIENT_NS
+	stop_server
+	return $RET
+}
+
+do_testx() {
+	local IFACE1=$1
+	local IFACE2=$2
+
+	start_server $IFACE1 || return $RET
+	start_server $IFACE2 || return $RET
+	timeout 3 ip netns exec $CLIENT_NS1 ./sctp_hello client $AF \
+		$SERVER_IP $SERVER_PORT $CLIENT_IP $CLIENT_PORT && \
+	timeout 3 ip netns exec $CLIENT_NS2 ./sctp_hello client $AF \
+		$SERVER_IP $SERVER_PORT $CLIENT_IP $CLIENT_PORT
+	RET=$?
+	wait_client $CLIENT_NS1
+	wait_client $CLIENT_NS2
+	stop_server
+	return $RET
+}
+
+testup() {
+	ip netns exec $SERVER_NS sysctl -wq net.sctp.l3mdev_accept=1
+	echo -n "TEST 01: nobind, connect from client 1, l3mdev_accept=1, Y "
+	do_test $CLIENT_NS1 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 02: nobind, connect from client 2, l3mdev_accept=1, N "
+	do_test $CLIENT_NS2 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	ip netns exec $SERVER_NS sysctl -wq net.sctp.l3mdev_accept=0
+	echo -n "TEST 03: nobind, connect from client 1, l3mdev_accept=0, N "
+	do_test $CLIENT_NS1 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 04: nobind, connect from client 2, l3mdev_accept=0, N "
+	do_test $CLIENT_NS2 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 05: bind veth2 in server, connect from client 1, N "
+	do_test $CLIENT_NS1 veth2 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 06: bind veth1 in server, connect from client 1, Y "
+	do_test $CLIENT_NS1 veth1 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 07: bind vrf-1 in server, connect from client 1, Y "
+	do_test $CLIENT_NS1 vrf-1 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 08: bind vrf-2 in server, connect from client 1, N "
+	do_test $CLIENT_NS1 vrf-2 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 09: bind vrf-2 in server, connect from client 2, Y "
+	do_test $CLIENT_NS2 vrf-2 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 10: bind vrf-1 in server, connect from client 2, N "
+	do_test $CLIENT_NS2 vrf-1 && { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 11: bind vrf-1 & 2 in server, connect from client 1 & 2, Y "
+	do_testx vrf-1 vrf-2 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+
+	echo -n "TEST 12: bind vrf-2 & 1 in server, connect from client 1 & 2, Y "
+	do_testx vrf-2 vrf-1 || { echo "[FAIL]"; return $RET; }
+	echo "[PASS]"
+}
+
+trap cleanup EXIT
+setup && echo "Testing For SCTP VRF:" && \
+CLIENT_IP=$CLIENT_IP4 SERVER_IP=$SERVER_IP4 AF="-4" testup && echo "***v4 Tests Done***" &&
+CLIENT_IP=$CLIENT_IP6 SERVER_IP=$SERVER_IP6 AF="-6" testup && echo "***v6 Tests Done***"
+exit $?
diff --git a/tools/testing/selftests/net/settings b/tools/testing/selftests/net/settings
new file mode 100644
index 000000000000..ed8418e8217a
--- /dev/null
+++ b/tools/testing/selftests/net/settings
@@ -0,0 +1 @@
+timeout=3600
diff --git a/tools/testing/selftests/net/sk_bind_sendto_listen.c b/tools/testing/selftests/net/sk_bind_sendto_listen.c
new file mode 100644
index 000000000000..b420d830f72c
--- /dev/null
+++ b/tools/testing/selftests/net/sk_bind_sendto_listen.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <unistd.h>
+
+int main(void)
+{
+	int fd1, fd2, one = 1;
+	struct sockaddr_in6 bind_addr = {
+		.sin6_family = AF_INET6,
+		.sin6_port = htons(20000),
+		.sin6_flowinfo = htonl(0),
+		.sin6_addr = {},
+		.sin6_scope_id = 0,
+	};
+
+	inet_pton(AF_INET6, "::", &bind_addr.sin6_addr);
+
+	fd1 = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
+	if (fd1 < 0) {
+		error(1, errno, "socket fd1");
+		return -1;
+	}
+
+	if (setsockopt(fd1, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
+		error(1, errno, "setsockopt(SO_REUSEADDR) fd1");
+		goto out_err1;
+	}
+
+	if (bind(fd1, (struct sockaddr *)&bind_addr, sizeof(bind_addr))) {
+		error(1, errno, "bind fd1");
+		goto out_err1;
+	}
+
+	if (sendto(fd1, NULL, 0, MSG_FASTOPEN, (struct sockaddr *)&bind_addr,
+		   sizeof(bind_addr))) {
+		error(1, errno, "sendto fd1");
+		goto out_err1;
+	}
+
+	fd2 = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
+	if (fd2 < 0) {
+		error(1, errno, "socket fd2");
+		goto out_err1;
+	}
+
+	if (setsockopt(fd2, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
+		error(1, errno, "setsockopt(SO_REUSEADDR) fd2");
+		goto out_err2;
+	}
+
+	if (bind(fd2, (struct sockaddr *)&bind_addr, sizeof(bind_addr))) {
+		error(1, errno, "bind fd2");
+		goto out_err2;
+	}
+
+	if (sendto(fd2, NULL, 0, MSG_FASTOPEN, (struct sockaddr *)&bind_addr,
+		   sizeof(bind_addr)) != -1) {
+		error(1, errno, "sendto fd2");
+		goto out_err2;
+	}
+
+	if (listen(fd2, 0)) {
+		error(1, errno, "listen");
+		goto out_err2;
+	}
+
+	close(fd2);
+	close(fd1);
+	return 0;
+
+out_err2:
+	close(fd2);
+
+out_err1:
+	close(fd1);
+	return -1;
+}
diff --git a/tools/testing/selftests/net/sk_connect_zero_addr.c b/tools/testing/selftests/net/sk_connect_zero_addr.c
new file mode 100644
index 000000000000..4be418aefd9f
--- /dev/null
+++ b/tools/testing/selftests/net/sk_connect_zero_addr.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <unistd.h>
+
+int main(void)
+{
+	int fd1, fd2, one = 1;
+	struct sockaddr_in6 bind_addr = {
+		.sin6_family = AF_INET6,
+		.sin6_port = htons(20000),
+		.sin6_flowinfo = htonl(0),
+		.sin6_addr = {},
+		.sin6_scope_id = 0,
+	};
+
+	inet_pton(AF_INET6, "::", &bind_addr.sin6_addr);
+
+	fd1 = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
+	if (fd1 < 0) {
+		error(1, errno, "socket fd1");
+		return -1;
+	}
+
+	if (setsockopt(fd1, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one))) {
+		error(1, errno, "setsockopt(SO_REUSEADDR) fd1");
+		goto out_err1;
+	}
+
+	if (bind(fd1, (struct sockaddr *)&bind_addr, sizeof(bind_addr))) {
+		error(1, errno, "bind fd1");
+		goto out_err1;
+	}
+
+	if (listen(fd1, 0)) {
+		error(1, errno, "listen");
+		goto out_err1;
+	}
+
+	fd2 = socket(AF_INET6, SOCK_STREAM, IPPROTO_IP);
+	if (fd2 < 0) {
+		error(1, errno, "socket fd2");
+		goto out_err1;
+	}
+
+	if (connect(fd2, (struct sockaddr *)&bind_addr, sizeof(bind_addr))) {
+		error(1, errno, "bind fd2");
+		goto out_err2;
+	}
+
+	close(fd2);
+	close(fd1);
+	return 0;
+
+out_err2:
+	close(fd2);
+out_err1:
+	close(fd1);
+	return -1;
+}
diff --git a/tools/testing/selftests/net/sk_so_peek_off.c b/tools/testing/selftests/net/sk_so_peek_off.c
new file mode 100644
index 000000000000..2a3f5c604f52
--- /dev/null
+++ b/tools/testing/selftests/net/sk_so_peek_off.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include "kselftest.h"
+
+static char *afstr(int af, int proto)
+{
+	if (proto == IPPROTO_TCP)
+		return af == AF_INET ? "TCP/IPv4" : "TCP/IPv6";
+	else
+		return af == AF_INET ? "UDP/IPv4" : "UDP/IPv6";
+}
+
+int sk_peek_offset_probe(sa_family_t af, int proto)
+{
+	int type = (proto == IPPROTO_TCP ? SOCK_STREAM : SOCK_DGRAM);
+	int optv = 0;
+	int ret = 0;
+	int s;
+
+	s = socket(af, type, proto);
+	if (s < 0) {
+		ksft_perror("Temporary TCP socket creation failed");
+	} else {
+		if (!setsockopt(s, SOL_SOCKET, SO_PEEK_OFF, &optv, sizeof(int)))
+			ret = 1;
+		else
+			printf("%s does not support SO_PEEK_OFF\n", afstr(af, proto));
+		close(s);
+	}
+	return ret;
+}
+
+static void sk_peek_offset_set(int s, int offset)
+{
+	if (setsockopt(s, SOL_SOCKET, SO_PEEK_OFF, &offset, sizeof(offset)))
+		ksft_perror("Failed to set SO_PEEK_OFF value\n");
+}
+
+static int sk_peek_offset_get(int s)
+{
+	int offset;
+	socklen_t len = sizeof(offset);
+
+	if (getsockopt(s, SOL_SOCKET, SO_PEEK_OFF, &offset, &len))
+		ksft_perror("Failed to get SO_PEEK_OFF value\n");
+	return offset;
+}
+
+static int sk_peek_offset_test(sa_family_t af, int proto)
+{
+	int type = (proto == IPPROTO_TCP ? SOCK_STREAM : SOCK_DGRAM);
+	union {
+		struct sockaddr sa;
+		struct sockaddr_in a4;
+		struct sockaddr_in6 a6;
+	} a;
+	int res = 0;
+	int s[2] = {0, 0};
+	int recv_sock = 0;
+	int offset = 0;
+	ssize_t len;
+	char buf[2];
+
+	memset(&a, 0, sizeof(a));
+	a.sa.sa_family = af;
+
+	s[0] = recv_sock = socket(af, type, proto);
+	s[1] = socket(af, type, proto);
+
+	if (s[0] < 0 || s[1] < 0) {
+		ksft_perror("Temporary socket creation failed\n");
+		goto out;
+	}
+	if (bind(s[0], &a.sa, sizeof(a)) < 0) {
+		ksft_perror("Temporary socket bind() failed\n");
+		goto out;
+	}
+	if (getsockname(s[0], &a.sa, &((socklen_t) { sizeof(a) })) < 0) {
+		ksft_perror("Temporary socket getsockname() failed\n");
+		goto out;
+	}
+	if (proto == IPPROTO_TCP && listen(s[0], 0) < 0) {
+		ksft_perror("Temporary socket listen() failed\n");
+		goto out;
+	}
+	if (connect(s[1], &a.sa, sizeof(a)) < 0) {
+		ksft_perror("Temporary socket connect() failed\n");
+		goto out;
+	}
+	if (proto == IPPROTO_TCP) {
+		recv_sock = accept(s[0], NULL, NULL);
+		if (recv_sock <= 0) {
+			ksft_perror("Temporary socket accept() failed\n");
+			goto out;
+		}
+	}
+
+	/* Some basic tests of getting/setting offset */
+	offset = sk_peek_offset_get(recv_sock);
+	if (offset != -1) {
+		ksft_perror("Initial value of socket offset not -1\n");
+		goto out;
+	}
+	sk_peek_offset_set(recv_sock, 0);
+	offset = sk_peek_offset_get(recv_sock);
+	if (offset != 0) {
+		ksft_perror("Failed to set socket offset to 0\n");
+		goto out;
+	}
+
+	/* Transfer a message */
+	if (send(s[1], (char *)("ab"), 2, 0) != 2) {
+		ksft_perror("Temporary probe socket send() failed\n");
+		goto out;
+	}
+	/* Read first byte */
+	len = recv(recv_sock, buf, 1, MSG_PEEK);
+	if (len != 1 || buf[0] != 'a') {
+		ksft_perror("Failed to read first byte of message\n");
+		goto out;
+	}
+	offset = sk_peek_offset_get(recv_sock);
+	if (offset != 1) {
+		ksft_perror("Offset not forwarded correctly at first byte\n");
+		goto out;
+	}
+	/* Try to read beyond last byte */
+	len = recv(recv_sock, buf, 2, MSG_PEEK);
+	if (len != 1 || buf[0] != 'b') {
+		ksft_perror("Failed to read last byte of message\n");
+		goto out;
+	}
+	offset = sk_peek_offset_get(recv_sock);
+	if (offset != 2) {
+		ksft_perror("Offset not forwarded correctly at last byte\n");
+		goto out;
+	}
+	/* Flush message */
+	len = recv(recv_sock, buf, 2, MSG_TRUNC);
+	if (len != 2) {
+		ksft_perror("Failed to flush message\n");
+		goto out;
+	}
+	offset = sk_peek_offset_get(recv_sock);
+	if (offset != 0) {
+		ksft_perror("Offset not reverted correctly after flush\n");
+		goto out;
+	}
+
+	printf("%s with MSG_PEEK_OFF works correctly\n", afstr(af, proto));
+	res = 1;
+out:
+	if (proto == IPPROTO_TCP && recv_sock >= 0)
+		close(recv_sock);
+	if (s[1] >= 0)
+		close(s[1]);
+	if (s[0] >= 0)
+		close(s[0]);
+	return res;
+}
+
+static int do_test(int proto)
+{
+	int res4, res6;
+
+	res4 = sk_peek_offset_probe(AF_INET, proto);
+	res6 = sk_peek_offset_probe(AF_INET6, proto);
+
+	if (!res4 && !res6)
+		return KSFT_SKIP;
+
+	if (res4)
+		res4 = sk_peek_offset_test(AF_INET, proto);
+
+	if (res6)
+		res6 = sk_peek_offset_test(AF_INET6, proto);
+
+	if (!res4 || !res6)
+		return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
+
+int main(void)
+{
+	int restcp, resudp;
+
+	restcp = do_test(IPPROTO_TCP);
+	resudp = do_test(IPPROTO_UDP);
+	if (restcp == KSFT_FAIL || resudp == KSFT_FAIL)
+		return KSFT_FAIL;
+
+	return KSFT_PASS;
+}
diff --git a/tools/testing/selftests/net/skf_net_off.c b/tools/testing/selftests/net/skf_net_off.c
new file mode 100644
index 000000000000..1fdf61d6cd7f
--- /dev/null
+++ b/tools/testing/selftests/net/skf_net_off.c
@@ -0,0 +1,244 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Open a tun device.
+ *
+ * [modifications: use IFF_NAPI_FRAGS, add sk filter]
+ *
+ * Expects the device to have been configured previously, e.g.:
+ *   sudo ip tuntap add name tap1 mode tap
+ *   sudo ip link set tap1 up
+ *   sudo ip link set dev tap1 addr 02:00:00:00:00:01
+ *   sudo ip -6 addr add fdab::1 peer fdab::2 dev tap1 nodad
+ *
+ * And to avoid premature pskb_may_pull:
+ *
+ *   sudo ethtool -K tap1 gro off
+ *   sudo bash -c 'echo 0 > /proc/sys/net/ipv4/ip_early_demux'
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/filter.h>
+#include <linux/if.h>
+#include <linux/if_packet.h>
+#include <linux/if_tun.h>
+#include <linux/ipv6.h>
+#include <netinet/if_ether.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <sys/uio.h>
+#include <unistd.h>
+
+static bool cfg_do_filter;
+static bool cfg_do_frags;
+static int cfg_dst_port = 8000;
+static char *cfg_ifname;
+
+static int tun_open(const char *tun_name)
+{
+	struct ifreq ifr = {0};
+	int fd, ret;
+
+	fd = open("/dev/net/tun", O_RDWR);
+	if (fd == -1)
+		error(1, errno, "open /dev/net/tun");
+
+	ifr.ifr_flags = IFF_TAP;
+	if (cfg_do_frags)
+		ifr.ifr_flags |= IFF_NAPI | IFF_NAPI_FRAGS;
+
+	strncpy(ifr.ifr_name, tun_name, IFNAMSIZ - 1);
+
+	ret = ioctl(fd, TUNSETIFF, &ifr);
+	if (ret)
+		error(1, ret, "ioctl TUNSETIFF");
+
+	return fd;
+}
+
+static void sk_set_filter(int fd)
+{
+	const int offset_proto = offsetof(struct ip6_hdr, ip6_nxt);
+	const int offset_dport = sizeof(struct ip6_hdr) + offsetof(struct udphdr, dest);
+
+	/* Filter UDP packets with destination port cfg_dst_port */
+	struct sock_filter filter_code[] = {
+		BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, SKF_AD_OFF + SKF_AD_PKTTYPE),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, PACKET_HOST, 0, 4),
+		BPF_STMT(BPF_LD  + BPF_B   + BPF_ABS, SKF_NET_OFF + offset_proto),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, IPPROTO_UDP, 0, 2),
+		BPF_STMT(BPF_LD  + BPF_H   + BPF_ABS, SKF_NET_OFF + offset_dport),
+		BPF_JUMP(BPF_JMP + BPF_JEQ + BPF_K, cfg_dst_port, 1, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0),
+		BPF_STMT(BPF_RET + BPF_K, 0xFFFF),
+	};
+
+	struct sock_fprog filter = {
+		sizeof(filter_code) / sizeof(filter_code[0]),
+		filter_code,
+	};
+
+	if (setsockopt(fd, SOL_SOCKET, SO_ATTACH_FILTER, &filter, sizeof(filter)))
+		error(1, errno, "setsockopt attach filter");
+}
+
+static int raw_open(void)
+{
+	int fd;
+
+	fd = socket(PF_INET6, SOCK_RAW, IPPROTO_UDP);
+	if (fd == -1)
+		error(1, errno, "socket raw (udp)");
+
+	if (cfg_do_filter)
+		sk_set_filter(fd);
+
+	return fd;
+}
+
+static void tun_write(int fd)
+{
+	const char eth_src[] = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x02 };
+	const char eth_dst[] = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x01 };
+	struct tun_pi pi = {0};
+	struct ipv6hdr ip6h = {0};
+	struct udphdr uh = {0};
+	struct ethhdr eth = {0};
+	uint32_t payload;
+	struct iovec iov[5];
+	int ret;
+
+	pi.proto = htons(ETH_P_IPV6);
+
+	memcpy(eth.h_source, eth_src, sizeof(eth_src));
+	memcpy(eth.h_dest, eth_dst, sizeof(eth_dst));
+	eth.h_proto = htons(ETH_P_IPV6);
+
+	ip6h.version = 6;
+	ip6h.payload_len = htons(sizeof(uh) + sizeof(uint32_t));
+	ip6h.nexthdr = IPPROTO_UDP;
+	ip6h.hop_limit = 8;
+	if (inet_pton(AF_INET6, "fdab::2", &ip6h.saddr) != 1)
+		error(1, errno, "inet_pton src");
+	if (inet_pton(AF_INET6, "fdab::1", &ip6h.daddr) != 1)
+		error(1, errno, "inet_pton src");
+
+	uh.source = htons(8000);
+	uh.dest = htons(cfg_dst_port);
+	uh.len = ip6h.payload_len;
+	uh.check = 0;
+
+	payload = htonl(0xABABABAB);		/* Covered in IPv6 length */
+
+	iov[0].iov_base = &pi;
+	iov[0].iov_len  = sizeof(pi);
+	iov[1].iov_base = &eth;
+	iov[1].iov_len  = sizeof(eth);
+	iov[2].iov_base = &ip6h;
+	iov[2].iov_len  = sizeof(ip6h);
+	iov[3].iov_base = &uh;
+	iov[3].iov_len  = sizeof(uh);
+	iov[4].iov_base = &payload;
+	iov[4].iov_len  = sizeof(payload);
+
+	ret = writev(fd, iov, sizeof(iov) / sizeof(iov[0]));
+	if (ret <= 0)
+		error(1, errno, "writev");
+}
+
+static void raw_read(int fd)
+{
+	struct timeval tv = { .tv_usec = 100 * 1000 };
+	struct msghdr msg = {0};
+	struct iovec iov[2];
+	struct udphdr uh;
+	uint32_t payload[2];
+	int ret;
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcvtimeo udp");
+
+	iov[0].iov_base = &uh;
+	iov[0].iov_len = sizeof(uh);
+
+	iov[1].iov_base = payload;
+	iov[1].iov_len = sizeof(payload);
+
+	msg.msg_iov = iov;
+	msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]);
+
+	ret = recvmsg(fd, &msg, 0);
+	if (ret <= 0)
+		error(1, errno, "read raw");
+	if (ret != sizeof(uh) + sizeof(payload[0]))
+		error(1, errno, "read raw: len=%d\n", ret);
+
+	fprintf(stderr, "raw recv: 0x%x\n", payload[0]);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "fFi:")) != -1) {
+		switch (c) {
+		case 'f':
+			cfg_do_filter = true;
+			printf("bpf filter enabled\n");
+			break;
+		case 'F':
+			cfg_do_frags = true;
+			printf("napi frags mode enabled\n");
+			break;
+		case 'i':
+			cfg_ifname = optarg;
+			break;
+		default:
+			error(1, 0, "unknown option %c", optopt);
+			break;
+		}
+	}
+
+	if (!cfg_ifname)
+		error(1, 0, "must specify tap interface name (-i)");
+}
+
+int main(int argc, char **argv)
+{
+	int fdt, fdr;
+
+	parse_opts(argc, argv);
+
+	fdr = raw_open();
+	fdt = tun_open(cfg_ifname);
+
+	tun_write(fdt);
+	raw_read(fdr);
+
+	if (close(fdt))
+		error(1, errno, "close tun");
+	if (close(fdr))
+		error(1, errno, "close udp");
+
+	fprintf(stderr, "OK\n");
+	return 0;
+}
+
diff --git a/tools/testing/selftests/net/skf_net_off.sh b/tools/testing/selftests/net/skf_net_off.sh
new file mode 100755
index 000000000000..5da5066fb465
--- /dev/null
+++ b/tools/testing/selftests/net/skf_net_off.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+readonly NS="ns-$(mktemp -u XXXXXX)"
+
+cleanup() {
+	ip netns del $NS
+}
+
+ip netns add $NS
+trap cleanup EXIT
+
+ip -netns $NS link set lo up
+ip -netns $NS tuntap add name tap1 mode tap
+ip -netns $NS link set tap1 up
+ip -netns $NS link set dev tap1 addr 02:00:00:00:00:01
+ip -netns $NS -6 addr add fdab::1 peer fdab::2 dev tap1 nodad
+ip netns exec $NS ethtool -K tap1 gro off
+
+# disable early demux, else udp_v6_early_demux pulls udp header into linear
+ip netns exec $NS sysctl -w net.ipv4.ip_early_demux=0
+
+echo "no filter"
+ip netns exec $NS ./skf_net_off -i tap1
+
+echo "filter, linear skb (-f)"
+ip netns exec $NS ./skf_net_off -i tap1 -f
+
+echo "filter, fragmented skb (-f) (-F)"
+ip netns exec $NS ./skf_net_off -i tap1 -f -F
diff --git a/tools/testing/selftests/net/so_incoming_cpu.c b/tools/testing/selftests/net/so_incoming_cpu.c
new file mode 100644
index 000000000000..4740701f1a9a
--- /dev/null
+++ b/tools/testing/selftests/net/so_incoming_cpu.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright Amazon.com Inc. or its affiliates. */
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <fcntl.h>
+
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <sys/sysinfo.h>
+
+#include "kselftest_harness.h"
+
+FIXTURE(so_incoming_cpu)
+{
+	int *servers;
+	union {
+		struct sockaddr addr;
+		struct sockaddr_in in_addr;
+	};
+	socklen_t addrlen;
+};
+
+enum when_to_set {
+	BEFORE_REUSEPORT,
+	BEFORE_LISTEN,
+	AFTER_LISTEN,
+	AFTER_ALL_LISTEN,
+};
+
+FIXTURE_VARIANT(so_incoming_cpu)
+{
+	int when_to_set;
+};
+
+FIXTURE_VARIANT_ADD(so_incoming_cpu, before_reuseport)
+{
+	.when_to_set = BEFORE_REUSEPORT,
+};
+
+FIXTURE_VARIANT_ADD(so_incoming_cpu, before_listen)
+{
+	.when_to_set = BEFORE_LISTEN,
+};
+
+FIXTURE_VARIANT_ADD(so_incoming_cpu, after_listen)
+{
+	.when_to_set = AFTER_LISTEN,
+};
+
+FIXTURE_VARIANT_ADD(so_incoming_cpu, after_all_listen)
+{
+	.when_to_set = AFTER_ALL_LISTEN,
+};
+
+static void write_sysctl(struct __test_metadata *_metadata,
+			 char *filename, char *string)
+{
+	int fd, len, ret;
+
+	fd = open(filename, O_WRONLY);
+	ASSERT_NE(fd, -1);
+
+	len = strlen(string);
+	ret = write(fd, string, len);
+	ASSERT_EQ(ret, len);
+}
+
+static void setup_netns(struct __test_metadata *_metadata)
+{
+	ASSERT_EQ(unshare(CLONE_NEWNET), 0);
+	ASSERT_EQ(system("ip link set lo up"), 0);
+
+	write_sysctl(_metadata, "/proc/sys/net/ipv4/ip_local_port_range", "10000 60001");
+	write_sysctl(_metadata, "/proc/sys/net/ipv4/tcp_tw_reuse", "0");
+}
+
+#define NR_PORT				(60001 - 10000 - 1)
+#define NR_CLIENT_PER_SERVER_DEFAULT	32
+static int nr_client_per_server, nr_server, nr_client;
+
+FIXTURE_SETUP(so_incoming_cpu)
+{
+	setup_netns(_metadata);
+
+	nr_server = get_nprocs();
+	ASSERT_LE(2, nr_server);
+
+	if (NR_CLIENT_PER_SERVER_DEFAULT * nr_server < NR_PORT)
+		nr_client_per_server = NR_CLIENT_PER_SERVER_DEFAULT;
+	else
+		nr_client_per_server = NR_PORT / nr_server;
+
+	nr_client = nr_client_per_server * nr_server;
+
+	self->servers = malloc(sizeof(int) * nr_server);
+	ASSERT_NE(self->servers, NULL);
+
+	self->in_addr.sin_family = AF_INET;
+	self->in_addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+	self->in_addr.sin_port = htons(0);
+	self->addrlen = sizeof(struct sockaddr_in);
+}
+
+FIXTURE_TEARDOWN(so_incoming_cpu)
+{
+	int i;
+
+	for (i = 0; i < nr_server; i++)
+		close(self->servers[i]);
+
+	free(self->servers);
+}
+
+void set_so_incoming_cpu(struct __test_metadata *_metadata, int fd, int cpu)
+{
+	int ret;
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, sizeof(int));
+	ASSERT_EQ(ret, 0);
+}
+
+int create_server(struct __test_metadata *_metadata,
+		  FIXTURE_DATA(so_incoming_cpu) *self,
+		  const FIXTURE_VARIANT(so_incoming_cpu) *variant,
+		  int cpu)
+{
+	int fd, ret;
+
+	fd = socket(AF_INET, SOCK_STREAM | SOCK_NONBLOCK, 0);
+	ASSERT_NE(fd, -1);
+
+	if (variant->when_to_set == BEFORE_REUSEPORT)
+		set_so_incoming_cpu(_metadata, fd, cpu);
+
+	ret = setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &(int){1}, sizeof(int));
+	ASSERT_EQ(ret, 0);
+
+	ret = bind(fd, &self->addr, self->addrlen);
+	ASSERT_EQ(ret, 0);
+
+	if (variant->when_to_set == BEFORE_LISTEN)
+		set_so_incoming_cpu(_metadata, fd, cpu);
+
+	/* We don't use nr_client_per_server here not to block
+	 * this test at connect() if SO_INCOMING_CPU is broken.
+	 */
+	ret = listen(fd, nr_client);
+	ASSERT_EQ(ret, 0);
+
+	if (variant->when_to_set == AFTER_LISTEN)
+		set_so_incoming_cpu(_metadata, fd, cpu);
+
+	return fd;
+}
+
+void create_servers(struct __test_metadata *_metadata,
+		    FIXTURE_DATA(so_incoming_cpu) *self,
+		    const FIXTURE_VARIANT(so_incoming_cpu) *variant)
+{
+	int i, ret;
+
+	for (i = 0; i < nr_server; i++) {
+		self->servers[i] = create_server(_metadata, self, variant, i);
+
+		if (i == 0) {
+			ret = getsockname(self->servers[i], &self->addr, &self->addrlen);
+			ASSERT_EQ(ret, 0);
+		}
+	}
+
+	if (variant->when_to_set == AFTER_ALL_LISTEN) {
+		for (i = 0; i < nr_server; i++)
+			set_so_incoming_cpu(_metadata, self->servers[i], i);
+	}
+}
+
+void create_clients(struct __test_metadata *_metadata,
+		    FIXTURE_DATA(so_incoming_cpu) *self)
+{
+	cpu_set_t cpu_set;
+	int i, j, fd, ret;
+
+	for (i = 0; i < nr_server; i++) {
+		CPU_ZERO(&cpu_set);
+
+		CPU_SET(i, &cpu_set);
+		ASSERT_EQ(CPU_COUNT(&cpu_set), 1);
+		ASSERT_NE(CPU_ISSET(i, &cpu_set), 0);
+
+		/* Make sure SYN will be processed on the i-th CPU
+		 * and finally distributed to the i-th listener.
+		 */
+		ret = sched_setaffinity(0, sizeof(cpu_set), &cpu_set);
+		ASSERT_EQ(ret, 0);
+
+		for (j = 0; j < nr_client_per_server; j++) {
+			fd  = socket(AF_INET, SOCK_STREAM, 0);
+			ASSERT_NE(fd, -1);
+
+			ret = connect(fd, &self->addr, self->addrlen);
+			ASSERT_EQ(ret, 0);
+
+			close(fd);
+		}
+	}
+}
+
+void verify_incoming_cpu(struct __test_metadata *_metadata,
+			 FIXTURE_DATA(so_incoming_cpu) *self)
+{
+	int i, j, fd, cpu, ret, total = 0;
+	socklen_t len = sizeof(int);
+
+	for (i = 0; i < nr_server; i++) {
+		for (j = 0; j < nr_client_per_server; j++) {
+			/* If we see -EAGAIN here, SO_INCOMING_CPU is broken */
+			fd = accept(self->servers[i], &self->addr, &self->addrlen);
+			ASSERT_NE(fd, -1);
+
+			ret = getsockopt(fd, SOL_SOCKET, SO_INCOMING_CPU, &cpu, &len);
+			ASSERT_EQ(ret, 0);
+			ASSERT_EQ(cpu, i);
+
+			close(fd);
+			total++;
+		}
+	}
+
+	ASSERT_EQ(total, nr_client);
+	TH_LOG("SO_INCOMING_CPU is very likely to be "
+	       "working correctly with %d sockets.", total);
+}
+
+TEST_F(so_incoming_cpu, test1)
+{
+	create_servers(_metadata, self, variant);
+	create_clients(_metadata, self);
+	verify_incoming_cpu(_metadata, self);
+}
+
+TEST_F(so_incoming_cpu, test2)
+{
+	int server;
+
+	create_servers(_metadata, self, variant);
+
+	/* No CPU specified */
+	server = create_server(_metadata, self, variant, -1);
+	close(server);
+
+	create_clients(_metadata, self);
+	verify_incoming_cpu(_metadata, self);
+}
+
+TEST_F(so_incoming_cpu, test3)
+{
+	int server, client;
+
+	create_servers(_metadata, self, variant);
+
+	/* No CPU specified */
+	server = create_server(_metadata, self, variant, -1);
+
+	create_clients(_metadata, self);
+
+	/* Never receive any requests */
+	client = accept(server, &self->addr, &self->addrlen);
+	ASSERT_EQ(client, -1);
+
+	verify_incoming_cpu(_metadata, self);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/so_netns_cookie.c b/tools/testing/selftests/net/so_netns_cookie.c
new file mode 100644
index 000000000000..b39e87e967cd
--- /dev/null
+++ b/tools/testing/selftests/net/so_netns_cookie.c
@@ -0,0 +1,61 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <sched.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#ifndef SO_NETNS_COOKIE
+#define SO_NETNS_COOKIE 71
+#endif
+
+#define pr_err(fmt, ...) \
+	({ \
+		fprintf(stderr, "%s:%d:" fmt ": %m\n", \
+			__func__, __LINE__, ##__VA_ARGS__); \
+		1; \
+	})
+
+int main(int argc, char *argvp[])
+{
+	uint64_t cookie1, cookie2;
+	socklen_t vallen;
+	int sock1, sock2;
+
+	sock1 = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock1 < 0)
+		return pr_err("Unable to create TCP socket");
+
+	vallen = sizeof(cookie1);
+	if (getsockopt(sock1, SOL_SOCKET, SO_NETNS_COOKIE, &cookie1, &vallen) != 0)
+		return pr_err("getsockopt(SOL_SOCKET, SO_NETNS_COOKIE)");
+
+	if (!cookie1)
+		return pr_err("SO_NETNS_COOKIE returned zero cookie");
+
+	if (unshare(CLONE_NEWNET))
+		return pr_err("unshare");
+
+	sock2 = socket(AF_INET, SOCK_STREAM, 0);
+	if (sock2 < 0)
+		return pr_err("Unable to create TCP socket");
+
+	vallen = sizeof(cookie2);
+	if (getsockopt(sock2, SOL_SOCKET, SO_NETNS_COOKIE, &cookie2, &vallen) != 0)
+		return pr_err("getsockopt(SOL_SOCKET, SO_NETNS_COOKIE)");
+
+	if (!cookie2)
+		return pr_err("SO_NETNS_COOKIE returned zero cookie");
+
+	if (cookie1 == cookie2)
+		return pr_err("SO_NETNS_COOKIE returned identical cookies for distinct ns");
+
+	close(sock1);
+	close(sock2);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/so_rcv_listener.c b/tools/testing/selftests/net/so_rcv_listener.c
new file mode 100644
index 000000000000..bc5841192aa6
--- /dev/null
+++ b/tools/testing/selftests/net/so_rcv_listener.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <errno.h>
+#include <netdb.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <linux/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#ifndef SO_RCVPRIORITY
+#define SO_RCVPRIORITY 82
+#endif
+
+struct options {
+	__u32 val;
+	int name;
+	int rcvname;
+	const char *host;
+	const char *service;
+} opt;
+
+static void __attribute__((noreturn)) usage(const char *bin)
+{
+	printf("Usage: %s [opts] <dst host> <dst port / service>\n", bin);
+	printf("Options:\n"
+		"\t\t-M val  Test SO_RCVMARK\n"
+		"\t\t-P val  Test SO_RCVPRIORITY\n"
+		"");
+	exit(EXIT_FAILURE);
+}
+
+static void parse_args(int argc, char *argv[])
+{
+	int o;
+
+	while ((o = getopt(argc, argv, "M:P:")) != -1) {
+		switch (o) {
+		case 'M':
+			opt.val = atoi(optarg);
+			opt.name = SO_MARK;
+			opt.rcvname = SO_RCVMARK;
+			break;
+		case 'P':
+			opt.val = atoi(optarg);
+			opt.name = SO_PRIORITY;
+			opt.rcvname = SO_RCVPRIORITY;
+			break;
+		default:
+			usage(argv[0]);
+			break;
+		}
+	}
+
+	if (optind != argc - 2)
+		usage(argv[0]);
+
+	opt.host = argv[optind];
+	opt.service = argv[optind + 1];
+}
+
+int main(int argc, char *argv[])
+{
+	int err = 0;
+	int recv_fd = -1;
+	int ret_value = 0;
+	__u32 recv_val;
+	struct cmsghdr *cmsg;
+	char cbuf[CMSG_SPACE(sizeof(__u32))];
+	char recv_buf[CMSG_SPACE(sizeof(__u32))];
+	struct iovec iov[1];
+	struct msghdr msg;
+	struct sockaddr_in recv_addr4;
+	struct sockaddr_in6 recv_addr6;
+
+	parse_args(argc, argv);
+
+	int family = strchr(opt.host, ':') ? AF_INET6 : AF_INET;
+
+	recv_fd = socket(family, SOCK_DGRAM, IPPROTO_UDP);
+	if (recv_fd < 0) {
+		perror("Can't open recv socket");
+		ret_value = -errno;
+		goto cleanup;
+	}
+
+	err = setsockopt(recv_fd, SOL_SOCKET, opt.rcvname, &opt.val, sizeof(opt.val));
+	if (err < 0) {
+		perror("Recv setsockopt error");
+		ret_value = -errno;
+		goto cleanup;
+	}
+
+	if (family == AF_INET) {
+		memset(&recv_addr4, 0, sizeof(recv_addr4));
+		recv_addr4.sin_family = family;
+		recv_addr4.sin_port = htons(atoi(opt.service));
+
+		if (inet_pton(family, opt.host, &recv_addr4.sin_addr) <= 0) {
+			perror("Invalid IPV4 address");
+			ret_value = -errno;
+			goto cleanup;
+		}
+
+		err = bind(recv_fd, (struct sockaddr *)&recv_addr4, sizeof(recv_addr4));
+	} else {
+		memset(&recv_addr6, 0, sizeof(recv_addr6));
+		recv_addr6.sin6_family = family;
+		recv_addr6.sin6_port = htons(atoi(opt.service));
+
+		if (inet_pton(family, opt.host, &recv_addr6.sin6_addr) <= 0) {
+			perror("Invalid IPV6 address");
+			ret_value = -errno;
+			goto cleanup;
+		}
+
+		err = bind(recv_fd, (struct sockaddr *)&recv_addr6, sizeof(recv_addr6));
+	}
+
+	if (err < 0) {
+		perror("Recv bind error");
+		ret_value = -errno;
+		goto cleanup;
+	}
+
+	iov[0].iov_base = recv_buf;
+	iov[0].iov_len = sizeof(recv_buf);
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cbuf;
+	msg.msg_controllen = sizeof(cbuf);
+
+	err = recvmsg(recv_fd, &msg, 0);
+	if (err < 0) {
+		perror("Message receive error");
+		ret_value = -errno;
+		goto cleanup;
+	}
+
+	for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL; cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+		if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == opt.name) {
+			recv_val = *(__u32 *)CMSG_DATA(cmsg);
+			printf("Received value: %u\n", recv_val);
+
+			if (recv_val != opt.val) {
+				fprintf(stderr, "Error: expected value: %u, got: %u\n",
+					opt.val, recv_val);
+				ret_value = -EINVAL;
+			}
+			goto cleanup;
+		}
+	}
+
+	fprintf(stderr, "Error: No matching cmsg received\n");
+	ret_value = -ENOMSG;
+
+cleanup:
+	if (recv_fd >= 0)
+		close(recv_fd);
+
+	return ret_value;
+}
diff --git a/tools/testing/selftests/net/so_txtime.c b/tools/testing/selftests/net/so_txtime.c
new file mode 100644
index 000000000000..b76df1efc2ef
--- /dev/null
+++ b/tools/testing/selftests/net/so_txtime.c
@@ -0,0 +1,517 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test the SO_TXTIME API
+ *
+ * Takes a stream of { payload, delivery time }[], to be sent across two
+ * processes. Start this program on two separate network namespaces or
+ * connected hosts, one instance in transmit mode and the other in receive
+ * mode using the '-r' option. Receiver will compare arrival timestamps to
+ * the expected stream. Sender will read transmit timestamps from the error
+ * queue. The streams can differ due to out-of-order delivery and drops.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+#include <linux/if_ether.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+#include <poll.h>
+
+static int	cfg_clockid	= CLOCK_TAI;
+static uint16_t	cfg_port	= 8000;
+static int	cfg_variance_us	= 4000;
+static uint64_t	cfg_start_time_ns;
+static int	cfg_mark;
+static bool	cfg_rx;
+
+static uint64_t glob_tstart;
+static uint64_t tdeliver_max;
+
+/* encode one timed transmission (of a 1B payload) */
+struct timed_send {
+	char	data;
+	int64_t	delay_us;
+};
+
+#define MAX_NUM_PKT	8
+static struct timed_send cfg_buf[MAX_NUM_PKT];
+static int cfg_num_pkt;
+
+static int cfg_errq_level;
+static int cfg_errq_type;
+
+static struct sockaddr_storage cfg_dst_addr;
+static struct sockaddr_storage cfg_src_addr;
+static socklen_t cfg_alen;
+
+static uint64_t gettime_ns(clockid_t clock)
+{
+	struct timespec ts;
+
+	if (clock_gettime(clock, &ts))
+		error(1, errno, "gettime");
+
+	return ts.tv_sec * (1000ULL * 1000 * 1000) + ts.tv_nsec;
+}
+
+static void do_send_one(int fdt, struct timed_send *ts)
+{
+	char control[CMSG_SPACE(sizeof(uint64_t))];
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	struct cmsghdr *cm;
+	uint64_t tdeliver;
+	int ret;
+
+	iov.iov_base = &ts->data;
+	iov.iov_len = 1;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+	msg.msg_name = (struct sockaddr *)&cfg_dst_addr;
+	msg.msg_namelen = cfg_alen;
+
+	if (ts->delay_us >= 0) {
+		memset(control, 0, sizeof(control));
+		msg.msg_control = &control;
+		msg.msg_controllen = sizeof(control);
+
+		tdeliver = glob_tstart + ts->delay_us * 1000;
+		tdeliver_max = tdeliver_max > tdeliver ?
+			       tdeliver_max : tdeliver;
+
+		cm = CMSG_FIRSTHDR(&msg);
+		cm->cmsg_level = SOL_SOCKET;
+		cm->cmsg_type = SCM_TXTIME;
+		cm->cmsg_len = CMSG_LEN(sizeof(tdeliver));
+		memcpy(CMSG_DATA(cm), &tdeliver, sizeof(tdeliver));
+	}
+
+	ret = sendmsg(fdt, &msg, 0);
+	if (ret == -1)
+		error(1, errno, "write");
+	if (ret == 0)
+		error(1, 0, "write: 0B");
+
+}
+
+static void do_recv_one(int fdr, struct timed_send *ts)
+{
+	int64_t tstop, texpect;
+	char rbuf[2];
+	int ret;
+
+	ret = recv(fdr, rbuf, sizeof(rbuf), 0);
+	if (ret == -1 && errno == EAGAIN)
+		error(1, EAGAIN, "recv: timeout");
+	if (ret == -1)
+		error(1, errno, "read");
+	if (ret != 1)
+		error(1, 0, "read: %dB", ret);
+
+	tstop = (gettime_ns(cfg_clockid) - glob_tstart) / 1000;
+	texpect = ts->delay_us >= 0 ? ts->delay_us : 0;
+
+	fprintf(stderr, "payload:%c delay:%lld expected:%lld (us)\n",
+			rbuf[0], (long long)tstop, (long long)texpect);
+
+	if (rbuf[0] != ts->data)
+		error(1, 0, "payload mismatch. expected %c", ts->data);
+
+	if (llabs(tstop - texpect) > cfg_variance_us) {
+		fprintf(stderr, "exceeds variance (%d us)\n", cfg_variance_us);
+		if (!getenv("KSFT_MACHINE_SLOW"))
+			exit(1);
+	}
+}
+
+static void do_recv_verify_empty(int fdr)
+{
+	char rbuf[1];
+	int ret;
+
+	ret = recv(fdr, rbuf, sizeof(rbuf), 0);
+	if (ret != -1 || errno != EAGAIN)
+		error(1, 0, "recv: not empty as expected (%d, %d)", ret, errno);
+}
+
+static int do_recv_errqueue_timeout(int fdt)
+{
+	char control[CMSG_SPACE(sizeof(struct sock_extended_err)) +
+		     CMSG_SPACE(sizeof(struct sockaddr_in6))] = {0};
+	char data[sizeof(struct ethhdr) + sizeof(struct ipv6hdr) +
+		  sizeof(struct udphdr) + 1];
+	struct sock_extended_err *err;
+	int ret, num_tstamp = 0;
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	struct cmsghdr *cm;
+	int64_t tstamp = 0;
+
+	iov.iov_base = data;
+	iov.iov_len = sizeof(data);
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	while (1) {
+		const char *reason = NULL;
+
+		ret = recvmsg(fdt, &msg, MSG_ERRQUEUE);
+		if (ret == -1 && errno == EAGAIN)
+			break;
+		if (ret == -1)
+			error(1, errno, "errqueue");
+		if (msg.msg_flags != MSG_ERRQUEUE)
+			error(1, 0, "errqueue: flags 0x%x\n", msg.msg_flags);
+
+		cm = CMSG_FIRSTHDR(&msg);
+		if (cm->cmsg_level != cfg_errq_level ||
+		    cm->cmsg_type != cfg_errq_type)
+			error(1, 0, "errqueue: type 0x%x.0x%x\n",
+				    cm->cmsg_level, cm->cmsg_type);
+
+		err = (struct sock_extended_err *)CMSG_DATA(cm);
+		if (err->ee_origin != SO_EE_ORIGIN_TXTIME)
+			error(1, 0, "errqueue: origin 0x%x\n", err->ee_origin);
+
+		switch (err->ee_errno) {
+		case ECANCELED:
+			if (err->ee_code != SO_EE_CODE_TXTIME_MISSED)
+				error(1, 0, "errqueue: unknown ECANCELED %u\n",
+				      err->ee_code);
+			reason = "missed txtime";
+		break;
+		case EINVAL:
+			if (err->ee_code != SO_EE_CODE_TXTIME_INVALID_PARAM)
+				error(1, 0, "errqueue: unknown EINVAL %u\n",
+				      err->ee_code);
+			reason = "invalid txtime";
+		break;
+		default:
+			error(1, 0, "errqueue: errno %u code %u\n",
+			      err->ee_errno, err->ee_code);
+		}
+
+		tstamp = ((int64_t) err->ee_data) << 32 | err->ee_info;
+		tstamp -= (int64_t) glob_tstart;
+		tstamp /= 1000 * 1000;
+		fprintf(stderr, "send: pkt %c at %" PRId64 "ms dropped: %s\n",
+			data[ret - 1], tstamp, reason);
+
+		msg.msg_flags = 0;
+		msg.msg_controllen = sizeof(control);
+		num_tstamp++;
+	}
+
+	return num_tstamp;
+}
+
+static void recv_errqueue_msgs(int fdt)
+{
+	struct pollfd pfd = { .fd = fdt, .events = POLLERR };
+	const int timeout_ms = 10;
+	int ret, num_tstamp = 0;
+
+	do {
+		ret = poll(&pfd, 1, timeout_ms);
+		if (ret == -1)
+			error(1, errno, "poll");
+
+		if (ret && (pfd.revents & POLLERR))
+			num_tstamp += do_recv_errqueue_timeout(fdt);
+
+		if (num_tstamp == cfg_num_pkt)
+			break;
+
+	} while (gettime_ns(cfg_clockid) < tdeliver_max);
+}
+
+static void start_time_wait(void)
+{
+	uint64_t now;
+	int err;
+
+	if (!cfg_start_time_ns)
+		return;
+
+	now = gettime_ns(CLOCK_REALTIME);
+	if (cfg_start_time_ns < now)
+		return;
+
+	err = usleep((cfg_start_time_ns - now) / 1000);
+	if (err)
+		error(1, errno, "usleep");
+}
+
+static void setsockopt_txtime(int fd)
+{
+	struct sock_txtime so_txtime_val = { .clockid = cfg_clockid };
+	struct sock_txtime so_txtime_val_read = { 0 };
+	socklen_t vallen = sizeof(so_txtime_val);
+
+	so_txtime_val.flags = SOF_TXTIME_REPORT_ERRORS;
+
+	if (setsockopt(fd, SOL_SOCKET, SO_TXTIME,
+		       &so_txtime_val, sizeof(so_txtime_val)))
+		error(1, errno, "setsockopt txtime");
+
+	if (getsockopt(fd, SOL_SOCKET, SO_TXTIME,
+		       &so_txtime_val_read, &vallen))
+		error(1, errno, "getsockopt txtime");
+
+	if (vallen != sizeof(so_txtime_val) ||
+	    memcmp(&so_txtime_val, &so_txtime_val_read, vallen))
+		error(1, 0, "getsockopt txtime: mismatch");
+}
+
+static int setup_tx(struct sockaddr *addr, socklen_t alen)
+{
+	int fd;
+
+	fd = socket(addr->sa_family, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket t");
+
+	if (connect(fd, addr, alen))
+		error(1, errno, "connect");
+
+	setsockopt_txtime(fd);
+
+	if (cfg_mark &&
+	    setsockopt(fd, SOL_SOCKET, SO_MARK, &cfg_mark, sizeof(cfg_mark)))
+		error(1, errno, "setsockopt mark");
+
+	return fd;
+}
+
+static int setup_rx(struct sockaddr *addr, socklen_t alen)
+{
+	struct timeval tv = { .tv_usec = 100 * 1000 };
+	int fd;
+
+	fd = socket(addr->sa_family, SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket r");
+
+	if (bind(fd, addr, alen))
+		error(1, errno, "bind");
+
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcv timeout");
+
+	return fd;
+}
+
+static void do_test_tx(struct sockaddr *addr, socklen_t alen)
+{
+	int fdt, i;
+
+	fprintf(stderr, "\nSO_TXTIME ipv%c clock %s\n",
+			addr->sa_family == PF_INET ? '4' : '6',
+			cfg_clockid == CLOCK_TAI ? "tai" : "monotonic");
+
+	fdt = setup_tx(addr, alen);
+
+	start_time_wait();
+	glob_tstart = gettime_ns(cfg_clockid);
+
+	for (i = 0; i < cfg_num_pkt; i++)
+		do_send_one(fdt, &cfg_buf[i]);
+
+	recv_errqueue_msgs(fdt);
+
+	if (close(fdt))
+		error(1, errno, "close t");
+}
+
+static void do_test_rx(struct sockaddr *addr, socklen_t alen)
+{
+	int fdr, i;
+
+	fdr = setup_rx(addr, alen);
+
+	start_time_wait();
+	glob_tstart = gettime_ns(cfg_clockid);
+
+	for (i = 0; i < cfg_num_pkt; i++)
+		do_recv_one(fdr, &cfg_buf[i]);
+
+	do_recv_verify_empty(fdr);
+
+	if (close(fdr))
+		error(1, errno, "close r");
+}
+
+static void setup_sockaddr(int domain, const char *str_addr,
+			   struct sockaddr_storage *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (domain) {
+	case PF_INET:
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", str_addr);
+		break;
+	case PF_INET6:
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", str_addr);
+		break;
+	}
+}
+
+static int parse_io(const char *optarg, struct timed_send *array)
+{
+	char *arg, *tok;
+	int aoff = 0;
+
+	arg = strdup(optarg);
+	if (!arg)
+		error(1, errno, "strdup");
+
+	while ((tok = strtok(arg, ","))) {
+		arg = NULL;	/* only pass non-zero on first call */
+
+		if (aoff / 2 == MAX_NUM_PKT)
+			error(1, 0, "exceeds max pkt count (%d)", MAX_NUM_PKT);
+
+		if (aoff & 1) {	/* parse delay */
+			array->delay_us = strtol(tok, NULL, 0) * 1000;
+			array++;
+		} else {	/* parse character */
+			array->data = tok[0];
+		}
+
+		aoff++;
+	}
+
+	free(arg);
+
+	return aoff / 2;
+}
+
+static void usage(const char *progname)
+{
+	fprintf(stderr, "\nUsage: %s [options] <payload>\n"
+			"Options:\n"
+			"  -4            only IPv4\n"
+			"  -6            only IPv6\n"
+			"  -c <clock>    monotonic or tai (default)\n"
+			"  -D <addr>     destination IP address (server)\n"
+			"  -S <addr>     source IP address (client)\n"
+			"  -r            run rx mode\n"
+			"  -t <nsec>     start time (UTC nanoseconds)\n"
+			"  -m <mark>     socket mark\n"
+			"\n",
+			progname);
+	exit(1);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	char *daddr = NULL, *saddr = NULL;
+	int domain = PF_UNSPEC;
+	int c;
+
+	while ((c = getopt(argc, argv, "46c:S:D:rt:m:")) != -1) {
+		switch (c) {
+		case '4':
+			if (domain != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			domain = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			cfg_errq_level = SOL_IP;
+			cfg_errq_type = IP_RECVERR;
+			break;
+		case '6':
+			if (domain != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			domain = PF_INET6;
+			cfg_alen = sizeof(struct sockaddr_in6);
+			cfg_errq_level = SOL_IPV6;
+			cfg_errq_type = IPV6_RECVERR;
+			break;
+		case 'c':
+			if (!strcmp(optarg, "tai"))
+				cfg_clockid = CLOCK_TAI;
+			else if (!strcmp(optarg, "monotonic") ||
+				 !strcmp(optarg, "mono"))
+				cfg_clockid = CLOCK_MONOTONIC;
+			else
+				error(1, 0, "unknown clock id %s", optarg);
+			break;
+		case 'S':
+			saddr = optarg;
+			break;
+		case 'D':
+			daddr = optarg;
+			break;
+		case 'r':
+			cfg_rx = true;
+			break;
+		case 't':
+			cfg_start_time_ns = strtoll(optarg, NULL, 0);
+			break;
+		case 'm':
+			cfg_mark = strtol(optarg, NULL, 0);
+			break;
+		default:
+			usage(argv[0]);
+		}
+	}
+
+	if (argc - optind != 1)
+		usage(argv[0]);
+
+	if (domain == PF_UNSPEC)
+		error(1, 0, "Pass one of -4 or -6");
+	if (!daddr)
+		error(1, 0, "-D <server addr> required\n");
+	if (!cfg_rx && !saddr)
+		error(1, 0, "-S <client addr> required\n");
+
+	setup_sockaddr(domain, daddr, &cfg_dst_addr);
+	setup_sockaddr(domain, saddr, &cfg_src_addr);
+
+	cfg_num_pkt = parse_io(argv[optind], cfg_buf);
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+
+	if (cfg_rx)
+		do_test_rx((void *)&cfg_dst_addr, cfg_alen);
+	else
+		do_test_tx((void *)&cfg_src_addr, cfg_alen);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/so_txtime.sh b/tools/testing/selftests/net/so_txtime.sh
new file mode 100755
index 000000000000..5e861ad32a42
--- /dev/null
+++ b/tools/testing/selftests/net/so_txtime.sh
@@ -0,0 +1,110 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Regression tests for the SO_TXTIME interface
+
+set -e
+
+readonly ksft_skip=4
+readonly DEV="veth0"
+readonly BIN="./so_txtime"
+
+readonly RAND="$(mktemp -u XXXXXX)"
+readonly NSPREFIX="ns-${RAND}"
+readonly NS1="${NSPREFIX}1"
+readonly NS2="${NSPREFIX}2"
+
+readonly SADDR4='192.168.1.1'
+readonly DADDR4='192.168.1.2'
+readonly SADDR6='fd::1'
+readonly DADDR6='fd::2'
+
+cleanup() {
+	ip netns del "${NS2}"
+	ip netns del "${NS1}"
+}
+
+trap cleanup EXIT
+
+# Create virtual ethernet pair between network namespaces
+ip netns add "${NS1}"
+ip netns add "${NS2}"
+
+ip link add "${DEV}" netns "${NS1}" type veth \
+  peer name "${DEV}" netns "${NS2}"
+
+# Bring the devices up
+ip -netns "${NS1}" link set "${DEV}" up
+ip -netns "${NS2}" link set "${DEV}" up
+
+# Set fixed MAC addresses on the devices
+ip -netns "${NS1}" link set dev "${DEV}" address 02:02:02:02:02:02
+ip -netns "${NS2}" link set dev "${DEV}" address 06:06:06:06:06:06
+
+# Add fixed IP addresses to the devices
+ip -netns "${NS1}" addr add 192.168.1.1/24 dev "${DEV}"
+ip -netns "${NS2}" addr add 192.168.1.2/24 dev "${DEV}"
+ip -netns "${NS1}" addr add       fd::1/64 dev "${DEV}" nodad
+ip -netns "${NS2}" addr add       fd::2/64 dev "${DEV}" nodad
+
+run_test() {
+	local readonly IP="$1"
+	local readonly CLOCK="$2"
+	local readonly TXARGS="$3"
+	local readonly RXARGS="$4"
+
+	if [[ "${IP}" == "4" ]]; then
+		local readonly SADDR="${SADDR4}"
+		local readonly DADDR="${DADDR4}"
+	elif [[ "${IP}" == "6" ]]; then
+		local readonly SADDR="${SADDR6}"
+		local readonly DADDR="${DADDR6}"
+	else
+		echo "Invalid IP version ${IP}"
+		exit 1
+	fi
+
+	local readonly START="$(date +%s%N --date="+ 0.1 seconds")"
+
+	ip netns exec "${NS2}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${RXARGS}" -r &
+	ip netns exec "${NS1}" "${BIN}" -"${IP}" -c "${CLOCK}" -t "${START}" -S "${SADDR}" -D "${DADDR}" "${TXARGS}"
+	wait "$!"
+}
+
+do_test() {
+	run_test $@
+	[ $? -ne 0 ] && ret=1
+}
+
+do_fail_test() {
+	run_test $@
+	[ $? -eq 0 ] && ret=1
+}
+
+ip netns exec "${NS1}" tc qdisc add dev "${DEV}" root fq
+set +e
+ret=0
+do_test 4 mono a,-1 a,-1
+do_test 6 mono a,0 a,0
+do_test 6 mono a,10 a,10
+do_test 4 mono a,10,b,20 a,10,b,20
+do_test 6 mono a,20,b,10 b,20,a,20
+
+if ip netns exec "${NS1}" tc qdisc replace dev "${DEV}" root etf clockid CLOCK_TAI delta 400000; then
+	do_fail_test 4 tai a,-1 a,-1
+	do_fail_test 6 tai a,0 a,0
+	do_test 6 tai a,10 a,10
+	do_test 4 tai a,10,b,20 a,10,b,20
+	do_test 6 tai a,20,b,10 b,10,a,20
+else
+	echo "tc ($(tc -V)) does not support qdisc etf. skipping"
+	[ $ret -eq 0 ] && ret=$ksft_skip
+fi
+
+if [ $ret -eq 0 ]; then
+	echo OK. All tests passed
+elif [[ $ret -ne $ksft_skip && -n "$KSFT_MACHINE_SLOW" ]]; then
+	echo "Ignoring errors due to slow environment" 1>&2
+	ret=0
+fi
+exit $ret
diff --git a/tools/testing/selftests/net/socket.c b/tools/testing/selftests/net/socket.c
index 0f227f2f9be9..9e270548dad8 100644
--- a/tools/testing/selftests/net/socket.c
+++ b/tools/testing/selftests/net/socket.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <errno.h>
 #include <unistd.h>
@@ -6,6 +7,8 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 
+#include "kselftest.h"
+
 struct socket_testcase {
 	int	domain;
 	int	type;
@@ -30,13 +33,13 @@ static struct socket_testcase tests[] = {
 	{ AF_INET, SOCK_STREAM, IPPROTO_UDP, -EPROTONOSUPPORT, 1  },
 };
 
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define ERR_STRING_SZ	64
 
 static int run_tests(void)
 {
 	char err_string1[ERR_STRING_SZ];
 	char err_string2[ERR_STRING_SZ];
+	const char *msg1, *msg2;
 	int i, err;
 
 	err = 0;
@@ -54,13 +57,13 @@ static int run_tests(void)
 			    errno == -s->expect)
 				continue;
 
-			strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
-			strerror_r(errno, err_string2, ERR_STRING_SZ);
+			msg1 = strerror_r(-s->expect, err_string1, ERR_STRING_SZ);
+			msg2 = strerror_r(errno, err_string2, ERR_STRING_SZ);
 
 			fprintf(stderr, "socket(%d, %d, %d) expected "
 				"err (%s) got (%s)\n",
 				s->domain, s->type, s->protocol,
-				err_string1, err_string2);
+				msg1, msg2);
 
 			err = -1;
 			break;
@@ -68,12 +71,12 @@ static int run_tests(void)
 			close(fd);
 
 			if (s->expect < 0) {
-				strerror_r(errno, err_string1, ERR_STRING_SZ);
+				msg1 = strerror_r(errno, err_string1, ERR_STRING_SZ);
 
 				fprintf(stderr, "socket(%d, %d, %d) expected "
 					"success got err (%s)\n",
 					s->domain, s->type, s->protocol,
-					err_string1);
+					msg1);
 
 				err = -1;
 				break;
diff --git a/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh
new file mode 100755
index 000000000000..a5e959a080bb
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dt46_l3vpn_test.sh
@@ -0,0 +1,568 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+# author: Paolo Lungaroni <paolo.lungaroni@uniroma2.it>
+
+# This test is designed for evaluating the new SRv6 End.DT46 Behavior used for
+# implementing IPv4/IPv6 L3 VPN use cases.
+#
+# The current SRv6 code in the Linux kernel only implements SRv6 End.DT4 and
+# End.DT6 Behaviors which can be used respectively to support IPv4-in-IPv6 and
+# IPv6-in-IPv6 VPNs. With End.DT4 and End.DT6 it is not possible to create a
+# single SRv6 VPN tunnel to carry both IPv4 and IPv6 traffic.
+# The SRv6 End.DT46 Behavior implementation is meant to support the
+# decapsulation of IPv4 and IPv6 traffic coming from a single SRv6 tunnel.
+# Therefore, the SRv6 End.DT46 Behavior in the Linux kernel greatly simplifies
+# the setup and operations of SRv6 VPNs.
+#
+# Hereafter a network diagram is shown, where two different tenants (named 100
+# and 200) offer IPv4/IPv6 L3 VPN services allowing hosts to communicate with
+# each other across an IPv6 network.
+#
+# Only hosts belonging to the same tenant (and to the same VPN) can communicate
+# with each other. Instead, the communication among hosts of different tenants
+# is forbidden.
+# In other words, hosts hs-t100-1 and hs-t100-2 are connected through the
+# IPv4/IPv6 L3 VPN of tenant 100 while hs-t200-3 and hs-t200-4 are connected
+# using the IPv4/IPv6 L3 VPN of tenant 200. Cross connection between tenant 100
+# and tenant 200 is forbidden and thus, for example, hs-t100-1 cannot reach
+# hs-t200-3 and vice versa.
+#
+# Routers rt-1 and rt-2 implement IPv4/IPv6 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DT46 Behavior and c) VRF.
+#
+# To explain how an IPv4/IPv6 L3 VPN based on SRv6 works, let us briefly
+# consider an example where, within the same domain of tenant 100, the host
+# hs-t100-1 pings the host hs-t100-2.
+#
+# First of all, L2 reachability of the host hs-t100-2 is taken into account by
+# the router rt-1 which acts as a arp/ndp proxy.
+#
+# When the host hs-t100-1 sends an IPv6 or IPv4 packet destined to hs-t100-2,
+# the router rt-1 receives the packet on the internal veth-t100 interface. Such
+# interface is enslaved to the VRF vrf-100 whose associated table contains the
+# SRv6 Encap route for encapsulating any IPv6 or IPv4 packet in a IPv6 plus the
+# Segment Routing Header (SRH) packet. This packet is sent through the (IPv6)
+# core network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DT46 Behavior removes the outer IPv6+SRH headers and
+# performs the lookup on the vrf-100 table using the destination address of
+# the decapsulated IPv6 or IPv4 packet. Afterwards, the packet is sent to the
+# host hs-t100-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the roles of rt-1
+# and rt-2 are swapped.
+#
+# Of course, the IPv4/IPv6 L3 VPN for tenant 200 works exactly as the IPv4/IPv6
+# L3 VPN for tenant 100. In this case, only hosts hs-t200-3 and hs-t200-4 are
+# able to connect with each other.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |  hs-t100-1 netns  |                                   |  hs-t100-2 netns  |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::1/64 |  |                                   |  |  cafe::2/64 |  |
+# |  | 10.0.0.1/24 |  |                                   |  | 10.0.0.2/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | |  cafe::254/64 |                 |   |                 |  cafe::254/64 | |
+# | | 10.0.0.254/24 |    +----------+ |   | +----------+    | 10.0.0.254/24 | |
+# | +-------+-------+    | localsid | |   | | localsid |    +-------+-------- |
+# |         |            |   table  | |   | |   table  |            |         |
+# |    +----+----+       +----------+ |   | +----------+       +----+----+    |
+# |    | vrf-100 |                    |   |                    | vrf-100 |    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |                    |   veth0    | |   | |   veth0    |                    |
+# |                    | fd00::1/64 |.|...|.| fd00::2/64 |                    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |    | vrf-200 |                    |   |                    | vrf-200 |    |
+# |    +----+----+                    |   |                    +----+----+    |
+# |         |                         |   |                         |         |
+# | +-------+-------+                 |   |                 +-------+-------- |
+# | |   veth-t200   |                 |   |                 |   veth-t200   | |
+# | |  cafe::254/64 |                 |   |                 |  cafe::254/64 | |
+# | | 10.0.0.254/24 |                 |   |                 | 10.0.0.254/24 | |
+# | +---------------+      rt-1 netns |   | rt-2 netns      +---------------- |
+# |        .                          |   |                          .        |
+# +-----------------------------------+   +-----------------------------------+
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+# +-------------------+                                   +-------------------+
+# |        .          |                                   |          .        |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::3/64 |  |                                   |  |  cafe::4/64 |  |
+# |  | 10.0.0.3/24 |  |                                   |  | 10.0.0.4/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |                   |                                   |                   |
+# |  hs-t200-3 netns  |                                   |  hs-t200-4 netns  |
+# |                   |                                   |                   |
+# +-------------------+                                   +-------------------+
+#
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table (table 90)
+# +--------------------------------------------------+
+# |SID              |Action                          |
+# +--------------------------------------------------+
+# |fc00:21:100::6046|apply SRv6 End.DT46 vrftable 100|
+# +--------------------------------------------------+
+# |fc00:21:200::6046|apply SRv6 End.DT46 vrftable 200|
+# +--------------------------------------------------+
+#
+# rt-1: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::2    |apply seg6 encap segs fc00:12:100::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t100               |
+# +---------------------------------------------------+
+# |10.0.0.2   |apply seg6 encap segs fc00:12:100::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t100               |
+# +---------------------------------------------------+
+#
+# rt-1: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::4    |apply seg6 encap segs fc00:12:200::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t200               |
+# +---------------------------------------------------+
+# |10.0.0.4   |apply seg6 encap segs fc00:12:200::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t200               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table (table 90)
+# +--------------------------------------------------+
+# |SID              |Action                          |
+# +--------------------------------------------------+
+# |fc00:12:100::6046|apply SRv6 End.DT46 vrftable 100|
+# +--------------------------------------------------+
+# |fc00:12:200::6046|apply SRv6 End.DT46 vrftable 200|
+# +--------------------------------------------------+
+#
+# rt-2: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::1    |apply seg6 encap segs fc00:21:100::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t100               |
+# +---------------------------------------------------+
+# |10.0.0.1   |apply seg6 encap segs fc00:21:100::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t100               |
+# +---------------------------------------------------+
+#
+# rt-2: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::3    |apply seg6 encap segs fc00:21:200::6046|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth-t200               |
+# +---------------------------------------------------+
+# |10.0.0.3   |apply seg6 encap segs fc00:21:200::6046|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth-t200               |
+# +---------------------------------------------------+
+#
+
+source lib.sh
+
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fd00
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fc00
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	cleanup_all_ns
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local id=$1
+	eval local nsname=\${rt_${id}}
+
+	ip link set veth-rt-${id} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${id} name veth0
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${id}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv4.ip_forward=1
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_hs()
+{
+	local hid=$1
+	local rid=$2
+	local tid=$3
+	eval local hsname=\${hs_t${tid}_${hid}}
+	eval local rtname=\${rt_${rid}}
+	local rtveth=veth-t${tid}
+
+	# set the networking for the host
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv6_HS_NETWORK}::${hid}/64 dev veth0 nodad
+	ip -netns ${hsname} addr add ${IPv4_HS_NETWORK}.${hid}/24 dev veth0
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	# configure the VRF for the tenant X on the router which is directly
+	# connected to the source host.
+	ip -netns ${rtname} link add vrf-${tid} type vrf table ${tid}
+	ip -netns ${rtname} link set vrf-${tid} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	# enslave the veth-tX interface to the vrf-X in the access router
+	ip -netns ${rtname} link set ${rtveth} master vrf-${tid}
+	ip -netns ${rtname} addr add ${IPv6_HS_NETWORK}::254/64 dev ${rtveth} nodad
+	ip -netns ${rtname} addr add ${IPv4_HS_NETWORK}.254/24 dev ${rtveth}
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.${rtveth}.proxy_ndp=1
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.${rtveth}.proxy_arp=1
+
+	ip netns exec ${rtname} sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	eval local rtsrc_name=\${rt_${rtsrc}}
+	eval local rtdst_name=\${rt_${rtdst}}
+	local rtveth=veth-t${tid}
+	local vpn_sid=${VPN_LOCATOR_SERVICE}:${hssrc}${hsdst}:${tid}::6046
+
+	ip -netns ${rtsrc_name} -6 neigh add proxy ${IPv6_HS_NETWORK}::${hsdst} dev ${rtveth}
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -6 route add ${IPv6_HS_NETWORK}::${hsdst}/128 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -4 route add ${IPv4_HS_NETWORK}.${hsdst}/32 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 vrf vrf-${tid} \
+		via fd00::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 table ${LOCALSID_TABLE_ID} \
+		encap seg6local action End.DT46 vrftable ${tid} dev vrf-${tid}
+
+	# all sids for VPNs start with a common locator which is fc00::/16.
+	# Routes for handling the SRv6 End.DT46 behavior instances are grouped
+	# together in the 'localsid' table.
+	#
+	# NOTE: added only once
+	if [ -z "$(ip -netns ${rtdst_name} -6 rule show | \
+	    grep "to ${VPN_LOCATOR_SERVICE}::/16 lookup ${LOCALSID_TABLE_ID}")" ]; then
+		ip -netns ${rtdst_name} -6 rule add \
+			to ${VPN_LOCATOR_SERVICE}::/16 \
+			lookup ${LOCALSID_TABLE_ID} prio 999
+	fi
+
+	# set default routes to unreachable for both ipv4 and ipv6
+	ip -netns ${rtsrc_name} -6 route add unreachable default metric 4278198272 \
+		vrf vrf-${tid}
+
+	ip -netns ${rtsrc_name} -4 route add unreachable default metric 4278198272 \
+		vrf vrf-${tid}
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_ns rt_1 rt_2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_ns hs_t100_1 hs_t100_2
+	setup_hs 1 1 100  #args: host router tenant
+	setup_hs 2 2 100
+
+	# setup two hosts for the tenant 200
+	#  - host hs-3 is directly connected to the router rt-1;
+	#  - host hs-4 is directly connected to the router rt-2.
+	setup_ns hs_t200_3 hs_t200_4
+	setup_hs 3 1 200
+	setup_hs 4 2 200
+
+	# setup the IPv4/IPv6 L3 VPN which connects the host hs-t100-1 and host
+	# hs-t100-2 within the same tenant 100.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+
+	# setup the IPv4/IPv6 L3 VPN which connects the host hs-t200-3 and host
+	# hs-t200-4 within the same tenant 200.
+	setup_vpn_config 3 1 4 2 200
+	setup_vpn_config 4 2 3 1 200
+}
+
+check_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+	eval local nsname=\${rt_${rtsrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W 1 ${IPv6_RT_NETWORK}::${rtdst} \
+		>/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+
+	check_rt_connectivity ${rtsrc} ${rtdst}
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+	eval local nsname=\${hs_t${tid}_${hssrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv6_HS_NETWORK}::${hsdst} >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+	eval local nsname=\${hs_t${tid}_${hssrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv4_HS_NETWORK}.${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_ipv6_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "IPv6 Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+
+	check_hs_ipv4_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "IPv4 Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc=$1
+	local tidsrc=$2
+	local hsdst=$3
+	local tiddst=$4
+
+	check_hs_ipv6_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "IPv6 Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+
+	check_hs_ipv4_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "IPv4 Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+
+}
+
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc=$1
+	local tid=$2
+
+	check_hs_ipv6_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "IPv6 Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+
+	check_hs_ipv4_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "IPv4 Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+
+}
+
+router_tests()
+{
+	log_section "IPv6 routers connectivity test"
+
+	check_and_log_rt_connectivity 1 2
+	check_and_log_rt_connectivity 2 1
+}
+
+host2gateway_tests()
+{
+	log_section "IPv4/IPv6 connectivity test among hosts and gateway"
+
+	check_and_log_hs2gw_connectivity 1 100
+	check_and_log_hs2gw_connectivity 2 100
+
+	check_and_log_hs2gw_connectivity 3 200
+	check_and_log_hs2gw_connectivity 4 200
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+
+	check_and_log_hs_connectivity 3 4 200
+	check_and_log_hs_connectivity 4 3 200
+}
+
+host_vpn_isolation_tests()
+{
+	local i
+	local j
+	local k
+	local tmp
+	local l1="1 2"
+	local l2="3 4"
+	local t1=100
+	local t2=200
+
+	log_section "SRv6 VPN isolation test among hosts in different tentants"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation ${i} ${t1} ${j} ${t2}
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+		tmp=${t1}; t1=${t2}; t2=${tmp}
+	done
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+        echo "SKIP: vrf sysctl does not exist"
+        exit $ksft_skip
+fi
+
+cleanup &>/dev/null
+
+setup
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh
new file mode 100755
index 000000000000..a649dba3cb77
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh
@@ -0,0 +1,491 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+
+# This test is designed for evaluating the new SRv6 End.DT4 behavior used for
+# implementing IPv4 L3 VPN use cases.
+#
+# Hereafter a network diagram is shown, where two different tenants (named 100
+# and 200) offer IPv4 L3 VPN services allowing hosts to communicate with each
+# other across an IPv6 network.
+#
+# Only hosts belonging to the same tenant (and to the same VPN) can communicate
+# with each other. Instead, the communication among hosts of different tenants
+# is forbidden.
+# In other words, hosts hs-t100-1 and hs-t100-2 are connected through the IPv4
+# L3 VPN of tenant 100 while hs-t200-3 and hs-t200-4 are connected using the
+# IPv4 L3 VPN of tenant 200. Cross connection between tenant 100 and tenant 200
+# is forbidden and thus, for example, hs-t100-1 cannot reach hs-t200-3 and vice
+# versa.
+#
+# Routers rt-1 and rt-2 implement IPv4 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DT4 behavior and c) VRF.
+#
+# To explain how an IPv4 L3 VPN based on SRv6 works, let us briefly consider an
+# example where, within the same domain of tenant 100, the host hs-t100-1 pings
+# the host hs-t100-2.
+#
+# First of all, L2 reachability of the host hs-t100-2 is taken into account by
+# the router rt-1 which acts as an arp proxy.
+#
+# When the host hs-t100-1 sends an IPv4 packet destined to hs-t100-2, the
+# router rt-1 receives the packet on the internal veth-t100 interface. Such
+# interface is enslaved to the VRF vrf-100 whose associated table contains the
+# SRv6 Encap route for encapsulating any IPv4 packet in a IPv6 plus the Segment
+# Routing Header (SRH) packet. This packet is sent through the (IPv6) core
+# network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DT4 behavior removes the outer IPv6+SRH headers and
+# performs the lookup on the vrf-100 table using the destination address of
+# the decapsulated IPv4 packet. Afterwards, the packet is sent to the host
+# hs-t100-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the role of rt-1
+# and rt-2 are swapped.
+#
+# Of course, the IPv4 L3 VPN for tenant 200 works exactly as the IPv4 L3 VPN
+# for tenant 100. In this case, only hosts hs-t200-3 and hs-t200-4 are able to
+# connect with each other.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |  hs-t100-1 netns  |                                   |  hs-t100-2 netns  |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  | 10.0.0.1/24 |  |                                   |  | 10.0.0.2/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | | 10.0.0.254/24 |    +----------+ |   | +----------+    | 10.0.0.254/24 | |
+# | +-------+-------+    | localsid | |   | | localsid |    +-------+-------- |
+# |         |            |   table  | |   | |   table  |            |         |
+# |    +----+----+       +----------+ |   | +----------+       +----+----+    |
+# |    | vrf-100 |                    |   |                    | vrf-100 |    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |                    |   veth0    | |   | |   veth0    |                    |
+# |                    | fd00::1/64 |.|...|.| fd00::2/64 |                    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |    | vrf-200 |                    |   |                    | vrf-200 |    |
+# |    +----+----+                    |   |                    +----+----+    |
+# |         |                         |   |                         |         |
+# | +-------+-------+                 |   |                 +-------+-------- |
+# | |   veth-t200   |                 |   |                 |   veth-t200   | |
+# | | 10.0.0.254/24 |                 |   |                 | 10.0.0.254/24 | |
+# | +---------------+      rt-1 netns |   | rt-2 netns      +---------------- |
+# |        .                          |   |                          .        |
+# +-----------------------------------+   +-----------------------------------+
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+# +-------------------+                                   +-------------------+
+# |        .          |                                   |          .        |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  | 10.0.0.3/24 |  |                                   |  | 10.0.0.4/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |                   |                                   |                   |
+# |  hs-t200-3 netns  |                                   |  hs-t200-4 netns  |
+# |                   |                                   |                   |
+# +-------------------+                                   +-------------------+
+#
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table (table 90)
+# +-------------------------------------------------+
+# |SID              |Action                         |
+# +-------------------------------------------------+
+# |fc00:21:100::6004|apply SRv6 End.DT4 vrftable 100|
+# +-------------------------------------------------+
+# |fc00:21:200::6004|apply SRv6 End.DT4 vrftable 200|
+# +-------------------------------------------------+
+#
+# rt-1: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.2   |apply seg6 encap segs fc00:12:100::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+# rt-1: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.4   |apply seg6 encap segs fc00:12:200::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t200               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table (table 90)
+# +-------------------------------------------------+
+# |SID              |Action                         |
+# +-------------------------------------------------+
+# |fc00:12:100::6004|apply SRv6 End.DT4 vrftable 100|
+# +-------------------------------------------------+
+# |fc00:12:200::6004|apply SRv6 End.DT4 vrftable 200|
+# +-------------------------------------------------+
+#
+# rt-2: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.1   |apply seg6 encap segs fc00:21:100::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+# rt-2: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.3   |apply seg6 encap segs fc00:21:200::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t200               |
+# +---------------------------------------------------+
+#
+
+source lib.sh
+
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fd00
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fc00
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	cleanup_all_ns
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local id=$1
+	eval local nsname=\${rt_${id}}
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip link set veth-rt-${id} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${id} name veth0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${id}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv4.ip_forward=1
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_hs()
+{
+	local hid=$1
+	local rid=$2
+	local tid=$3
+	eval local hsname=\${hs_t${tid}_${hid}}
+	eval local rtname=\${rt_${rid}}
+	local rtveth=veth-t${tid}
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv4_HS_NETWORK}.${hid}/24 dev veth0
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	# configure the VRF for the tenant X on the router which is directly
+	# connected to the source host.
+	ip -netns ${rtname} link add vrf-${tid} type vrf table ${tid}
+	ip -netns ${rtname} link set vrf-${tid} up
+
+	# enslave the veth-tX interface to the vrf-X in the access router
+	ip -netns ${rtname} link set ${rtveth} master vrf-${tid}
+	ip -netns ${rtname} addr add ${IPv4_HS_NETWORK}.254/24 dev ${rtveth}
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.${rtveth}.proxy_arp=1
+
+	ip netns exec ${rtname} sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	eval local rtsrc_name=\${rt_${rtsrc}}
+	eval local rtdst_name=\${rt_${rtdst}}
+	local vpn_sid=${VPN_LOCATOR_SERVICE}:${hssrc}${hsdst}:${tid}::6004
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -4 route add ${IPv4_HS_NETWORK}.${hsdst}/32 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 vrf vrf-${tid} \
+		via fd00::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 table ${LOCALSID_TABLE_ID} \
+		encap seg6local action End.DT4 vrftable ${tid} dev vrf-${tid}
+
+	# all sids for VPNs start with a common locator which is fc00::/16.
+	# Routes for handling the SRv6 End.DT4 behavior instances are grouped
+	# together in the 'localsid' table.
+	#
+	# NOTE: added only once
+	if [ -z "$(ip -netns ${rtdst_name} -6 rule show | \
+	    grep "to ${VPN_LOCATOR_SERVICE}::/16 lookup ${LOCALSID_TABLE_ID}")" ]; then
+		ip -netns ${rtdst_name} -6 rule add \
+			to ${VPN_LOCATOR_SERVICE}::/16 \
+			lookup ${LOCALSID_TABLE_ID} prio 999
+	fi
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_ns rt_1 rt_2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_ns hs_t100_1 hs_t100_2
+	setup_hs 1 1 100  #args: host router tenant
+	setup_hs 2 2 100
+
+	# setup two hosts for the tenant 200
+	#  - host hs-3 is directly connected to the router rt-1;
+	#  - host hs-4 is directly connected to the router rt-2.
+	setup_ns hs_t200_3 hs_t200_4
+	setup_hs 3 1 200
+	setup_hs 4 2 200
+
+	# setup the IPv4 L3 VPN which connects the host hs-t100-1 and host
+	# hs-t100-2 within the same tenant 100.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+
+	# setup the IPv4 L3 VPN which connects the host hs-t200-3 and host
+	# hs-t200-4 within the same tenant 200.
+	setup_vpn_config 3 1 4 2 200
+	setup_vpn_config 4 2 3 1 200
+}
+
+check_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+	eval local nsname=\${rt_${rtsrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W 1 ${IPv6_RT_NETWORK}::${rtdst} \
+		>/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+
+	check_rt_connectivity ${rtsrc} ${rtdst}
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+	eval local nsname=\${hs_t${tid}_${hssrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv4_HS_NETWORK}.${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc=$1
+	local tidsrc=$2
+	local hsdst=$3
+	local tiddst=$4
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+}
+
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc=$1
+	local tid=$2
+
+	check_hs_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+}
+
+router_tests()
+{
+	log_section "IPv6 routers connectivity test"
+
+	check_and_log_rt_connectivity 1 2
+	check_and_log_rt_connectivity 2 1
+}
+
+host2gateway_tests()
+{
+	log_section "IPv4 connectivity test among hosts and gateway"
+
+	check_and_log_hs2gw_connectivity 1 100
+	check_and_log_hs2gw_connectivity 2 100
+
+	check_and_log_hs2gw_connectivity 3 200
+	check_and_log_hs2gw_connectivity 4 200
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+
+	check_and_log_hs_connectivity 3 4 200
+	check_and_log_hs_connectivity 4 3 200
+}
+
+host_vpn_isolation_tests()
+{
+	local i
+	local j
+	local k
+	local tmp
+	local l1="1 2"
+	local l2="3 4"
+	local t1=100
+	local t2=200
+
+	log_section "SRv6 VPN isolation test among hosts in different tentants"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation ${i} ${t1} ${j} ${t2}
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+		tmp=${t1}; t1=${t2}; t2=${tmp}
+	done
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+        echo "SKIP: vrf sysctl does not exist"
+        exit $ksft_skip
+fi
+
+cleanup &>/dev/null
+
+setup
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh
new file mode 100755
index 000000000000..e408406d8489
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh
@@ -0,0 +1,501 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+# author: Paolo Lungaroni <paolo.lungaroni@cnit.it>
+
+# This test is designed for evaluating the new SRv6 End.DT6 behavior used for
+# implementing IPv6 L3 VPN use cases.
+#
+# Hereafter a network diagram is shown, where two different tenants (named 100
+# and 200) offer IPv6 L3 VPN services allowing hosts to communicate with each
+# other across an IPv6 network.
+#
+# Only hosts belonging to the same tenant (and to the same VPN) can communicate
+# with each other. Instead, the communication among hosts of different tenants
+# is forbidden.
+# In other words, hosts hs-t100-1 and hs-t100-2 are connected through the IPv6
+# L3 VPN of tenant 100 while hs-t200-3 and hs-t200-4 are connected using the
+# IPv6 L3 VPN of tenant 200. Cross connection between tenant 100 and tenant 200
+# is forbidden and thus, for example, hs-t100-1 cannot reach hs-t200-3 and vice
+# versa.
+#
+# Routers rt-1 and rt-2 implement IPv6 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DT6 behavior and c) VRF.
+#
+# To explain how an IPv6 L3 VPN based on SRv6 works, let us briefly consider an
+# example where, within the same domain of tenant 100, the host hs-t100-1 pings
+# the host hs-t100-2.
+#
+# First of all, L2 reachability of the host hs-t100-2 is taken into account by
+# the router rt-1 which acts as a ndp proxy.
+#
+# When the host hs-t100-1 sends an IPv6 packet destined to hs-t100-2, the
+# router rt-1 receives the packet on the internal veth-t100 interface. Such
+# interface is enslaved to the VRF vrf-100 whose associated table contains the
+# SRv6 Encap route for encapsulating any IPv6 packet in a IPv6 plus the Segment
+# Routing Header (SRH) packet. This packet is sent through the (IPv6) core
+# network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DT6 behavior removes the outer IPv6+SRH headers and
+# performs the lookup on the vrf-100 table using the destination address of
+# the decapsulated IPv6 packet. Afterwards, the packet is sent to the host
+# hs-t100-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the role of rt-1
+# and rt-2 are swapped.
+#
+# Of course, the IPv6 L3 VPN for tenant 200 works exactly as the IPv6 L3 VPN
+# for tenant 100. In this case, only hosts hs-t200-3 and hs-t200-4 are able to
+# connect with each other.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |  hs-t100-1 netns  |                                   |  hs-t100-2 netns  |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::1/64 |  |                                   |  |  cafe::2/64 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | |  cafe::254/64 |    +----------+ |   | +----------+    |  cafe::254/64 | |
+# | +-------+-------+    | localsid | |   | | localsid |    +-------+-------- |
+# |         |            |   table  | |   | |   table  |            |         |
+# |    +----+----+       +----------+ |   | +----------+       +----+----+    |
+# |    | vrf-100 |                    |   |                    | vrf-100 |    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |                    |   veth0    | |   | |   veth0    |                    |
+# |                    | fd00::1/64 |.|...|.| fd00::2/64 |                    |
+# |    +---------+     +------------+ |   | +------------+     +---------+    |
+# |    | vrf-200 |                    |   |                    | vrf-200 |    |
+# |    +----+----+                    |   |                    +----+----+    |
+# |         |                         |   |                         |         |
+# | +-------+-------+                 |   |                 +-------+-------- |
+# | |   veth-t200   |                 |   |                 |   veth-t200   | |
+# | |  cafe::254/64 |                 |   |                 |  cafe::254/64 | |
+# | +---------------+      rt-1 netns |   | rt-2 netns      +---------------- |
+# |        .                          |   |                          .        |
+# +-----------------------------------+   +-----------------------------------+
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+# +-------------------+                                   +-------------------+
+# |        .          |                                   |          .        |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  |  cafe::3/64 |  |                                   |  |  cafe::4/64 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |                   |                                   |                   |
+# |  hs-t200-3 netns  |                                   |  hs-t200-4 netns  |
+# |                   |                                   |                   |
+# +-------------------+                                   +-------------------+
+#
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table (table 90)
+# +-------------------------------------------------+
+# |SID              |Action                         |
+# +-------------------------------------------------+
+# |fc00:21:100::6006|apply SRv6 End.DT6 vrftable 100|
+# +-------------------------------------------------+
+# |fc00:21:200::6006|apply SRv6 End.DT6 vrftable 200|
+# +-------------------------------------------------+
+#
+# rt-1: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::2    |apply seg6 encap segs fc00:12:100::6006|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+# rt-1: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::4    |apply seg6 encap segs fc00:12:200::6006|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t200               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table (table 90)
+# +-------------------------------------------------+
+# |SID              |Action                         |
+# +-------------------------------------------------+
+# |fc00:12:100::6006|apply SRv6 End.DT6 vrftable 100|
+# +-------------------------------------------------+
+# |fc00:12:200::6006|apply SRv6 End.DT6 vrftable 200|
+# +-------------------------------------------------+
+#
+# rt-2: VRF tenant 100 (table 100)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::1    |apply seg6 encap segs fc00:21:100::6006|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+# rt-2: VRF tenant 200 (table 200)
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::3    |apply seg6 encap segs fc00:21:200::6006|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t200               |
+# +---------------------------------------------------+
+#
+
+source lib.sh
+
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fd00
+readonly IPv6_HS_NETWORK=cafe
+readonly VPN_LOCATOR_SERVICE=fc00
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	cleanup_all_ns
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local id=$1
+	eval local nsname=\${rt_${id}}
+
+	ip link set veth-rt-${id} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${id} name veth0
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${id}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_hs()
+{
+	local hid=$1
+	local rid=$2
+	local tid=$3
+	eval local hsname=\${hs_t${tid}_${hid}}
+	eval local rtname=\${rt_${rid}}
+	local rtveth=veth-t${tid}
+
+	# set the networking for the host
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${hsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv6_HS_NETWORK}::${hid}/64 dev veth0 nodad
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	# configure the VRF for the tenant X on the router which is directly
+	# connected to the source host.
+	ip -netns ${rtname} link add vrf-${tid} type vrf table ${tid}
+	ip -netns ${rtname} link set vrf-${tid} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	# enslave the veth-tX interface to the vrf-X in the access router
+	ip -netns ${rtname} link set ${rtveth} master vrf-${tid}
+	ip -netns ${rtname} addr add ${IPv6_HS_NETWORK}::254/64 dev ${rtveth} nodad
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.${rtveth}.proxy_ndp=1
+
+	ip netns exec ${rtname} sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	eval local rtsrc_name=\${rt_${rtsrc}}
+	eval local rtdst_name=\${rt_${rtdst}}
+	local rtveth=veth-t${tid}
+	local vpn_sid=${VPN_LOCATOR_SERVICE}:${hssrc}${hsdst}:${tid}::6006
+
+	ip -netns ${rtsrc_name} -6 neigh add proxy ${IPv6_HS_NETWORK}::${hsdst} dev ${rtveth}
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -6 route add ${IPv6_HS_NETWORK}::${hsdst}/128 vrf vrf-${tid} \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 vrf vrf-${tid} \
+		via fd00::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 table ${LOCALSID_TABLE_ID} \
+		encap seg6local action End.DT6 vrftable ${tid} dev vrf-${tid}
+
+	# all sids for VPNs start with a common locator which is fc00::/16.
+	# Routes for handling the SRv6 End.DT6 behavior instances are grouped
+	# together in the 'localsid' table.
+	#
+	# NOTE: added only once
+	if [ -z "$(ip -netns ${rtdst_name} -6 rule show | \
+	    grep "to ${VPN_LOCATOR_SERVICE}::/16 lookup ${LOCALSID_TABLE_ID}")" ]; then
+		ip -netns ${rtdst_name} -6 rule add \
+			to ${VPN_LOCATOR_SERVICE}::/16 \
+			lookup ${LOCALSID_TABLE_ID} prio 999
+	fi
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_ns rt_1 rt_2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_ns hs_t100_1 hs_t100_2
+	setup_hs 1 1 100  #args: host router tenant
+	setup_hs 2 2 100
+
+	# setup two hosts for the tenant 200
+	#  - host hs-3 is directly connected to the router rt-1;
+	#  - host hs-4 is directly connected to the router rt-2.
+	setup_ns hs_t200_3 hs_t200_4
+	setup_hs 3 1 200
+	setup_hs 4 2 200
+
+	# setup the IPv6 L3 VPN which connects the host hs-t100-1 and host
+	# hs-t100-2 within the same tenant 100.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+
+	# setup the IPv6 L3 VPN which connects the host hs-t200-3 and host
+	# hs-t200-4 within the same tenant 200.
+	setup_vpn_config 3 1 4 2 200
+	setup_vpn_config 4 2 3 1 200
+}
+
+check_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+	eval local nsname=\${rt_${rtsrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W 1 ${IPv6_RT_NETWORK}::${rtdst} \
+		>/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc=$1
+	local rtdst=$2
+
+	check_rt_connectivity ${rtsrc} ${rtdst}
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+	eval local nsname=\${hs_t${tid}_${hssrc}}
+
+	ip netns exec ${nsname} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv6_HS_NETWORK}::${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "Hosts connectivity: hs-t${tid}-${hssrc} -> hs-t${tid}-${hsdst} (tenant ${tid})"
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc=$1
+	local tidsrc=$2
+	local hsdst=$3
+	local tiddst=$4
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tidsrc}
+	# NOTE: ping should fail
+	log_test $? 1 "Hosts isolation: hs-t${tidsrc}-${hssrc} -X-> hs-t${tiddst}-${hsdst}"
+}
+
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc=$1
+	local tid=$2
+
+	check_hs_connectivity ${hssrc} 254 ${tid}
+	log_test $? 0 "Hosts connectivity: hs-t${tid}-${hssrc} -> gw (tenant ${tid})"
+}
+
+router_tests()
+{
+	log_section "IPv6 routers connectivity test"
+
+	check_and_log_rt_connectivity 1 2
+	check_and_log_rt_connectivity 2 1
+}
+
+host2gateway_tests()
+{
+	log_section "IPv6 connectivity test among hosts and gateway"
+
+	check_and_log_hs2gw_connectivity 1 100
+	check_and_log_hs2gw_connectivity 2 100
+
+	check_and_log_hs2gw_connectivity 3 200
+	check_and_log_hs2gw_connectivity 4 200
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+
+	check_and_log_hs_connectivity 3 4 200
+	check_and_log_hs_connectivity 4 3 200
+}
+
+host_vpn_isolation_tests()
+{
+	local i
+	local j
+	local k
+	local tmp
+	local l1="1 2"
+	local l2="3 4"
+	local t1=100
+	local t2=200
+
+	log_section "SRv6 VPN isolation test among hosts in different tentants"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation ${i} ${t1} ${j} ${t2}
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+		tmp=${t1}; t1=${t2}; t2=${tmp}
+	done
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+        echo "SKIP: vrf sysctl does not exist"
+        exit $ksft_skip
+fi
+
+cleanup &>/dev/null
+
+setup
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/srv6_end_dx4_netfilter_test.sh b/tools/testing/selftests/net/srv6_end_dx4_netfilter_test.sh
new file mode 100755
index 000000000000..e23210aa547f
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dx4_netfilter_test.sh
@@ -0,0 +1,335 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Jianguo Wu <wujianguo@chinatelecom.cn>
+#
+# Mostly copied from tools/testing/selftests/net/srv6_end_dt4_l3vpn_test.sh.
+#
+# This script is designed for testing the support of netfilter hooks for
+# SRv6 End.DX4 behavior.
+#
+# Hereafter a network diagram is shown, where one tenants (named 100) offer
+# IPv4 L3 VPN services allowing hosts to communicate with each other across
+# an IPv6 network.
+#
+# Routers rt-1 and rt-2 implement IPv4 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DX4 behavior.
+#
+# To explain how an IPv4 L3 VPN based on SRv6 works, let us briefly consider an
+# example where, within the same domain of tenant 100, the host hs-1 pings
+# the host hs-2.
+#
+# First of all, L2 reachability of the host hs-2 is taken into account by
+# the router rt-1 which acts as an arp proxy.
+#
+# When the host hs-1 sends an IPv4 packet destined to hs-2, the router rt-1
+# receives the packet on the internal veth-t100 interface, rt-1 contains the
+# SRv6 Encap route for encapsulating the IPv4 packet in a IPv6 plus the Segment
+# Routing Header (SRH) packet. This packet is sent through the (IPv6) core
+# network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DX4 behavior removes the outer IPv6+SRH headers and
+# routs the packet to the specified nexthop. Afterwards, the packet is sent to
+# the host hs-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the role of rt-1
+# and rt-2 are swapped.
+#
+# And when net.netfilter.nf_hooks_lwtunnel is set to 1 in rt-1 or rt-2, and a
+# rpfilter iptables rule is added, SRv6 packets will go through netfilter PREROUTING
+# hooks.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |    hs-1 netns     |                                   |     hs-2 netns    |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  | 10.0.0.1/24 |  |                                   |  | 10.0.0.2/24 |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | | 10.0.0.11/24  |    +----------+ |   | +----------+    | 10.0.0.22/24  | |
+# | +-------+-------+   |   route   | |   | |   route  |    +-------+-------- |
+# |                     |   table   | |   | |   table  |                      |
+# |                      +----------+ |   | +----------+                      |
+# |                  +--------------+ |   | +--------------+                  |
+# |                 |      veth0    | |   | |   veth0       |                 |
+# |                 | 2001:11::1/64 |.|...|.| 2001:11::2/64 |                 |
+# |                  +--------------+ |   | +--------------+                  |
+# |                                   |   |                                   |
+# |                        rt-1 netns |   | rt-2 netns                        |
+# |                                   |   |                                   |
+# +-----------------------------------+   +-----------------------------------+
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table
+# +----------------------------------------------------------------+
+# |SID              |Action                                        |
+# +----------------------------------------------------------------+
+# |fc00:21:100::6004|apply SRv6 End.DX4 nh4 10.0.0.1 dev veth-t100 |
+# +----------------------------------------------------------------+
+#
+# rt-1: route table
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.2   |apply seg6 encap segs fc00:12:100::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table
+# +---------------------------------------------------------------+
+# |SID              |Action                                       |
+# +---------------------------------------------------------------+
+# |fc00:12:100::6004|apply SRv6 End.DX4 nh4 10.0.0.2 dev veth-t100|
+# +---------------------------------------------------------------+
+#
+# rt-2: route table
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |10.0.0.1   |apply seg6 encap segs fc00:21:100::6004|
+# +---------------------------------------------------+
+# |10.0.0.0/24|forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+readonly IPv6_RT_NETWORK=2001:11
+readonly IPv4_HS_NETWORK=10.0.0
+readonly SID_LOCATOR=fc00
+
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	# destroy routers rt-* and hosts hs-*
+	for ns in $(ip netns show | grep -E 'rt-*|hs-*'); do
+		ip netns del ${ns} || true
+	done
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt=$1
+	local nsname=rt-${rt}
+
+	ip netns add ${nsname}
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip link set veth-rt-${rt} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${rt} name veth0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${rt}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv4.ip_forward=1
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_rt_netfilter()
+{
+	local rt=$1
+	local nsname=rt-${rt}
+
+	ip netns exec ${nsname} sysctl -wq net.netfilter.nf_hooks_lwtunnel=1
+	ip netns exec ${nsname} iptables -t raw -A PREROUTING -m rpfilter --invert -j DROP
+}
+
+setup_hs()
+{
+	local hs=$1
+	local rt=$2
+	local tid=$3
+	local hsname=hs-${hs}
+	local rtname=rt-${rt}
+	local rtveth=veth-t${tid}
+
+	# set the networking for the host
+	ip netns add ${hsname}
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv4_HS_NETWORK}.${hs}/24 dev veth0
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	ip -netns ${rtname} addr add ${IPv4_HS_NETWORK}.${rt}${hs}/24 dev ${rtveth}
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv4.conf.${rtveth}.proxy_arp=1
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	local hssrc_name=hs-t${tid}-${hssrc}
+	local hsdst_name=hs-t${tid}-${hsdst}
+	local rtsrc_name=rt-${rtsrc}
+	local rtdst_name=rt-${rtdst}
+	local vpn_sid=${SID_LOCATOR}:${hssrc}${hsdst}:${tid}::6004
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -4 route add ${IPv4_HS_NETWORK}.${hsdst}/32 \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 \
+		via 2001:11::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 \
+		encap seg6local action End.DX4 nh4 ${IPv4_HS_NETWORK}.${hsdst} dev veth-t${tid}
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_hs 1 1 100
+	setup_hs 2 2 100
+
+	# setup the IPv4 L3 VPN which connects the host hs-1 and host hs-2.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+}
+
+check_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	ip netns exec hs-${hssrc} ping -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv4_HS_NETWORK}.${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "Hosts connectivity: hs-${hssrc} -> hs-${hsdst} (tenant ${tid})"
+}
+
+host_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+}
+
+router_netfilter_tests()
+{
+	log_section "SRv6 VPN connectivity test with netfilter enabled in routers"
+	setup_rt_netfilter 1
+	setup_rt_netfilter 2
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+cleanup &>/dev/null
+
+setup
+
+host_tests
+router_netfilter_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/srv6_end_dx6_netfilter_test.sh b/tools/testing/selftests/net/srv6_end_dx6_netfilter_test.sh
new file mode 100755
index 000000000000..9e69a2ed5bc3
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_dx6_netfilter_test.sh
@@ -0,0 +1,340 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Jianguo Wu <wujianguo@chinatelecom.cn>
+#
+# Mostly copied from tools/testing/selftests/net/srv6_end_dt6_l3vpn_test.sh.
+#
+# This script is designed for testing the support of netfilter hooks for
+# SRv6 End.DX4 behavior.
+#
+# Hereafter a network diagram is shown, where one tenants (named 100) offer
+# IPv6 L3 VPN services allowing hosts to communicate with each other across
+# an IPv6 network.
+#
+# Routers rt-1 and rt-2 implement IPv6 L3 VPN services leveraging the SRv6
+# architecture. The key components for such VPNs are: a) SRv6 Encap behavior,
+# b) SRv6 End.DX4 behavior.
+#
+# To explain how an IPv6 L3 VPN based on SRv6 works, let us briefly consider an
+# example where, within the same domain of tenant 100, the host hs-1 pings
+# the host hs-2.
+#
+# First of all, L2 reachability of the host hs-2 is taken into account by
+# the router rt-1 which acts as an arp proxy.
+#
+# When the host hs-1 sends an IPv6 packet destined to hs-2, the router rt-1
+# receives the packet on the internal veth-t100 interface, rt-1 contains the
+# SRv6 Encap route for encapsulating the IPv6 packet in a IPv6 plus the Segment
+# Routing Header (SRH) packet. This packet is sent through the (IPv6) core
+# network up to the router rt-2 that receives it on veth0 interface.
+#
+# The rt-2 router uses the 'localsid' routing table to process incoming
+# IPv6+SRH packets which belong to the VPN of the tenant 100. For each of these
+# packets, the SRv6 End.DX4 behavior removes the outer IPv6+SRH headers and
+# routs the packet to the specified nexthop. Afterwards, the packet is sent to
+# the host hs-2 through the veth-t100 interface.
+#
+# The ping response follows the same processing but this time the role of rt-1
+# and rt-2 are swapped.
+#
+# And when net.netfilter.nf_hooks_lwtunnel is set to 1 in rt-1 or rt-2, and a
+# rpfilter iptables rule is added, SRv6 packets will go through netfilter PREROUTING
+# hooks.
+#
+#
+# +-------------------+                                   +-------------------+
+# |                   |                                   |                   |
+# |    hs-1 netns     |                                   |     hs-2 netns    |
+# |                   |                                   |                   |
+# |  +-------------+  |                                   |  +-------------+  |
+# |  |    veth0    |  |                                   |  |    veth0    |  |
+# |  | cafe::1/64  |  |                                   |  | cafe::2/64  |  |
+# |  +-------------+  |                                   |  +-------------+  |
+# |        .          |                                   |         .         |
+# +-------------------+                                   +-------------------+
+#          .                                                        .
+#          .                                                        .
+#          .                                                        .
+# +-----------------------------------+   +-----------------------------------+
+# |        .                          |   |                         .         |
+# | +---------------+                 |   |                 +---------------- |
+# | |   veth-t100   |                 |   |                 |   veth-t100   | |
+# | | cafe::11/64   |    +----------+ |   | +----------+    | cafe::22/64   | |
+# | +-------+-------+   |   route   | |   | |   route  |    +-------+-------- |
+# |                     |   table   | |   | |   table  |                      |
+# |                      +----------+ |   | +----------+                      |
+# |                  +--------------+ |   | +--------------+                  |
+# |                 |      veth0    | |   | |   veth0       |                 |
+# |                 | 2001:11::1/64 |.|...|.| 2001:11::2/64 |                 |
+# |                  +--------------+ |   | +--------------+                  |
+# |                                   |   |                                   |
+# |                        rt-1 netns |   | rt-2 netns                        |
+# |                                   |   |                                   |
+# +-----------------------------------+   +-----------------------------------+
+#
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+# | Network configuration |
+# ~~~~~~~~~~~~~~~~~~~~~~~~~
+#
+# rt-1: localsid table
+# +----------------------------------------------------------------+
+# |SID              |Action                                        |
+# +----------------------------------------------------------------+
+# |fc00:21:100::6004|apply SRv6 End.DX6 nh6 cafe::1 dev veth-t100  |
+# +----------------------------------------------------------------+
+#
+# rt-1: route table
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::2    |apply seg6 encap segs fc00:12:100::6004|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+#
+# rt-2: localsid table
+# +---------------------------------------------------------------+
+# |SID              |Action                                       |
+# +---------------------------------------------------------------+
+# |fc00:12:100::6004|apply SRv6 End.DX6 nh6 cafe::2 dev veth-t100 |
+# +---------------------------------------------------------------+
+#
+# rt-2: route table
+# +---------------------------------------------------+
+# |host       |Action                                 |
+# +---------------------------------------------------+
+# |cafe::1    |apply seg6 encap segs fc00:21:100::6004|
+# +---------------------------------------------------+
+# |cafe::/64  |forward to dev veth_t100               |
+# +---------------------------------------------------+
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+readonly IPv6_RT_NETWORK=2001:11
+readonly IPv6_HS_NETWORK=cafe
+readonly SID_LOCATOR=fc00
+
+PING_TIMEOUT_SEC=4
+
+ret=0
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+cleanup()
+{
+	ip link del veth-rt-1 2>/dev/null || true
+	ip link del veth-rt-2 2>/dev/null || true
+
+	# destroy routers rt-* and hosts hs-*
+	for ns in $(ip netns show | grep -E 'rt-*|hs-*'); do
+		ip netns del ${ns} || true
+	done
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt=$1
+	local nsname=rt-${rt}
+
+	ip netns add ${nsname}
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip link set veth-rt-${rt} netns ${nsname}
+	ip -netns ${nsname} link set veth-rt-${rt} name veth0
+
+	ip -netns ${nsname} addr add ${IPv6_RT_NETWORK}::${rt}/64 dev veth0 nodad
+	ip -netns ${nsname} link set veth0 up
+	ip -netns ${nsname} link set lo up
+
+	ip netns exec ${nsname} sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+setup_rt_netfilter()
+{
+	local rt=$1
+	local nsname=rt-${rt}
+
+	ip netns exec ${nsname} sysctl -wq net.netfilter.nf_hooks_lwtunnel=1
+	ip netns exec ${nsname} ip6tables -t raw -A PREROUTING -m rpfilter --invert -j DROP
+}
+
+setup_hs()
+{
+	local hs=$1
+	local rt=$2
+	local tid=$3
+	local hsname=hs-${hs}
+	local rtname=rt-${rt}
+	local rtveth=veth-t${tid}
+
+	# set the networking for the host
+	ip netns add ${hsname}
+
+	ip -netns ${hsname} link add veth0 type veth peer name ${rtveth}
+	ip -netns ${hsname} link set ${rtveth} netns ${rtname}
+	ip -netns ${hsname} addr add ${IPv6_HS_NETWORK}::${hs}/64 dev veth0 nodad
+	ip -netns ${hsname} link set veth0 up
+	ip -netns ${hsname} link set lo up
+
+	ip -netns ${rtname} addr add ${IPv6_HS_NETWORK}::${rt}${hs}/64 dev ${rtveth}
+	ip -netns ${rtname} link set ${rtveth} up
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip netns exec ${rtname} sysctl -wq net.ipv6.conf.${rtveth}.proxy_ndp=1
+}
+
+setup_vpn_config()
+{
+	local hssrc=$1
+	local rtsrc=$2
+	local hsdst=$3
+	local rtdst=$4
+	local tid=$5
+
+	local hssrc_name=hs-t${tid}-${hssrc}
+	local hsdst_name=hs-t${tid}-${hsdst}
+	local rtsrc_name=rt-${rtsrc}
+	local rtdst_name=rt-${rtdst}
+	local rtveth=veth-t${tid}
+	local vpn_sid=${SID_LOCATOR}:${hssrc}${hsdst}:${tid}::6004
+
+	ip -netns ${rtsrc_name} -6 neigh add proxy ${IPv6_HS_NETWORK}::${hsdst} dev ${rtveth}
+
+	# set the encap route for encapsulating packets which arrive from the
+	# host hssrc and destined to the access router rtsrc.
+	ip -netns ${rtsrc_name} -6 route add ${IPv6_HS_NETWORK}::${hsdst}/128 \
+		encap seg6 mode encap segs ${vpn_sid} dev veth0
+	ip -netns ${rtsrc_name} -6 route add ${vpn_sid}/128 \
+		via 2001:11::${rtdst} dev veth0
+
+	# set the decap route for decapsulating packets which arrive from
+	# the rtdst router and destined to the hsdst host.
+	ip -netns ${rtdst_name} -6 route add ${vpn_sid}/128 \
+		encap seg6local action End.DX6 nh6 ${IPv6_HS_NETWORK}::${hsdst} dev veth-t${tid}
+}
+
+setup()
+{
+	ip link add veth-rt-1 type veth peer name veth-rt-2
+	# setup the networking for router rt-1 and router rt-2
+	setup_rt_networking 1
+	setup_rt_networking 2
+
+	# setup two hosts for the tenant 100.
+	#  - host hs-1 is directly connected to the router rt-1;
+	#  - host hs-2 is directly connected to the router rt-2.
+	setup_hs 1 1 100
+	setup_hs 2 2 100
+
+	# setup the IPv4 L3 VPN which connects the host hs-1 and host hs-2.
+	setup_vpn_config 1 1 2 2 100  #args: src_host src_router dst_host dst_router tenant
+	setup_vpn_config 2 2 1 1 100
+}
+
+check_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	ip netns exec hs-${hssrc} ping -6 -c 1 -W ${PING_TIMEOUT_SEC} \
+		${IPv6_HS_NETWORK}::${hsdst} >/dev/null 2>&1
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc=$1
+	local hsdst=$2
+	local tid=$3
+
+	check_hs_connectivity ${hssrc} ${hsdst} ${tid}
+	log_test $? 0 "Hosts connectivity: hs-${hssrc} -> hs-${hsdst} (tenant ${tid})"
+}
+
+host_tests()
+{
+	log_section "SRv6 VPN connectivity test among hosts in the same tenant"
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+}
+
+router_netfilter_tests()
+{
+	log_section "SRv6 VPN connectivity test with netfilter enabled in routers"
+	setup_rt_netfilter 1
+	setup_rt_netfilter 2
+
+	check_and_log_hs_connectivity 1 2 100
+	check_and_log_hs_connectivity 2 1 100
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+cleanup &>/dev/null
+
+setup
+
+host_tests
+router_netfilter_tests
+
+print_log_test_results
+
+cleanup &>/dev/null
+
+exit ${ret}
diff --git a/tools/testing/selftests/net/srv6_end_flavors_test.sh b/tools/testing/selftests/net/srv6_end_flavors_test.sh
new file mode 100755
index 000000000000..318487eda671
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_flavors_test.sh
@@ -0,0 +1,869 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+# author: Paolo Lungaroni <paolo.lungaroni@uniroma2.it>
+#
+# This script is designed to test the support for "flavors" in the SRv6 End
+# behavior.
+#
+# Flavors defined in RFC8986 [1] represent additional operations that can modify
+# or extend the existing SRv6 End, End.X and End.T behaviors. For the sake of
+# convenience, we report the list of flavors described in [1] hereafter:
+#   - Penultimate Segment Pop (PSP);
+#   - Ultimate Segment Pop (USP);
+#   - Ultimate Segment Decapsulation (USD).
+#
+# The End, End.X, and End.T behaviors can support these flavors either
+# individually or in combinations.
+# Currently in this selftest we consider only the PSP flavor for the SRv6 End
+# behavior. However, it is possible to extend the script as soon as other
+# flavors will be supported in the kernel.
+#
+# The purpose of the PSP flavor consists in instructing the penultimate node
+# listed in the SRv6 policy to remove (i.e. pop) the outermost SRH from the IPv6
+# header.
+# A PSP enabled SRv6 End behavior instance processes the SRH by:
+#  - decrementing the Segment Left (SL) value from 1 to 0;
+#  - copying the last SID from the SID List into the IPv6 Destination Address
+#    (DA);
+#  - removing the SRH from the extension headers following the IPv6 header.
+#
+# Once the SRH is removed, the IPv6 packet is forwarded to the destination using
+# the IPv6 DA updated during the PSP operation (i.e. the IPv6 DA corresponding
+# to the last SID carried by the removed SRH).
+#
+# Although the PSP flavor can be set for any SRv6 End behavior instance on any
+# SR node, it will be active only on such behaviors bound to a penultimate SID
+# for a given SRv6 policy.
+#                                                SL=2 SL=1 SL=0
+#                                                  |    |    |
+# For example, given the SRv6 policy (SID List := <X,   Y,   Z>):
+#  - a PSP enabled SRv6 End behavior bound to SID Y will apply the PSP operation
+#    as Segment Left (SL) is 1, corresponding to the Penultimate Segment of the
+#    SID List;
+#  - a PSP enabled SRv6 End behavior bound to SID X will *NOT* apply the PSP
+#    operation as the Segment Left is 2. This behavior instance will apply the
+#    "standard" End packet processing, ignoring the configured PSP flavor at
+#    all.
+#
+# [1] RFC8986: https://datatracker.ietf.org/doc/html/rfc8986
+#
+# Network topology
+# ================
+#
+# The network topology used in this selftest is depicted hereafter, composed by
+# two hosts (hs-1, hs-2) and four routers (rt-1, rt-2, rt-3, rt-4).
+# Hosts hs-1 and hs-2 are connected to routers rt-1 and rt-2, respectively,
+# allowing them to communicate with each other.
+# Traffic exchanged between hs-1 and hs-2 can follow different network paths.
+# The network operator, through specific SRv6 Policies can steer traffic to one
+# path rather than another. In this selftest this is implemented as follows:
+#
+#   i) The SRv6 H.Insert behavior applies SRv6 Policies on traffic received by
+#      connected hosts. It pushes the Segment Routing Header (SRH) after the
+#      IPv6 header. The SRH contains the SID List (i.e. SRv6 Policy) needed for
+#      steering traffic across the segments/waypoints specified in that list;
+#
+#  ii) The SRv6 End behavior advances the active SID in the SID List carried by
+#      the SRH;
+#
+# iii) The PSP enabled SRv6 End behavior is used to remove the SRH when such
+#      behavior is configured on a node bound to the Penultimate Segment carried
+#      by the SID List.
+#
+#                cafe::1                      cafe::2
+#              +--------+                   +--------+
+#              |        |                   |        |
+#              |  hs-1  |                   |  hs-2  |
+#              |        |                   |        |
+#              +---+----+                   +--- +---+
+#     cafe::/64    |                             |      cafe::/64
+#                  |                             |
+#              +---+----+                   +----+---+
+#              |        |  fcf0:0:1:2::/64  |        |
+#              |  rt-1  +-------------------+  rt-2  |
+#              |        |                   |        |
+#              +---+----+                   +----+---+
+#                  |      .               .      |
+#                  |  fcf0:0:1:3::/64   .        |
+#                  |          .       .          |
+#                  |            .   .            |
+#  fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                  |            .   .            |
+#                  |          .       .          |
+#                  |  fcf0:0:2:4::/64   .        |
+#                  |      .               .      |
+#              +---+----+                   +----+---+
+#              |        |                   |        |
+#              |  rt-4  +-------------------+  rt-3  |
+#              |        |  fcf0:0:3:4::/64  |        |
+#              +---+----+                   +----+---+
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y in
+# the IPv6 operator network.
+#
+#
+# Local SID table
+# ===============
+#
+# Each SRv6 router is configured with a Local SID table in which SIDs are
+# stored. Considering the given SRv6 router rt-x, at least two SIDs are
+# configured in the Local SID table:
+#
+#   Local SID table for SRv6 router rt-x
+#   +---------------------------------------------------------------------+
+#   |fcff:x::e is associated with the SRv6 End behavior                   |
+#   |fcff:x::ef1 is associated with the SRv6 End behavior with PSP flavor |
+#   +---------------------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved by the operator for the SIDs. Reachability of
+# SIDs is ensured by proper configuration of the IPv6 operator's network and
+# SRv6 routers.
+#
+#
+# SRv6 Policies
+# =============
+#
+# An SRv6 ingress router applies different SRv6 Policies to the traffic received
+# from connected hosts on the basis of the destination addresses.
+# In case of SRv6 H.Insert behavior, the SRv6 Policy enforcement consists of
+# pushing the SRH (carrying a given SID List) after the existing IPv6 header.
+# Note that in the inserting mode, there is no encapsulation at all.
+#
+#   Before applying an SRv6 Policy using the SRv6 H.Insert behavior
+#   +------+---------+
+#   | IPv6 | Payload |
+#   +------+---------+
+#
+#   After applying an SRv6 Policy using the SRv6 H.Insert behavior
+#   +------+-----+---------+
+#   | IPv6 | SRH | Payload |
+#   +------+-----+---------+
+#
+# Traffic from hs-1 to hs-2
+# -------------------------
+#
+# Packets generated from hs-1 and directed towards hs-2 are
+# handled by rt-1 which applies the following SRv6 Policy:
+#
+#   i.a) IPv6 traffic, SID List=fcff:3::e,fcff:4::ef1,fcff:2::ef1,cafe::2
+#
+# Router rt-1 is configured to enforce the Policy (i.a) through the SRv6
+# H.Insert behavior which pushes the SRH after the existing IPv6 header. This
+# Policy steers the traffic from hs-1 across rt-3, rt-4, rt-2 and finally to the
+# destination hs-2.
+#
+# As the packet reaches the router rt-3, the SRv6 End behavior bound to SID
+# fcff:3::e is triggered. The behavior updates the Segment Left (from SL=3 to
+# SL=2) in the SRH, the IPv6 DA with fcff:4::ef1 and forwards the packet to the
+# next router on the path, i.e. rt-4.
+#
+# When router rt-4 receives the packet, the PSP enabled SRv6 End behavior bound
+# to SID fcff:4::ef1 is executed. Since the SL=2, the PSP operation is *NOT*
+# kicked in and the behavior applies the default End processing: the Segment
+# Left is decreased (from SL=2 to SL=1), the IPv6 DA is updated with the SID
+# fcff:2::ef1 and the packet is forwarded to router rt-2.
+#
+# The PSP enabled SRv6 End behavior on rt-2 is associated with SID fcff:2::ef1
+# and is executed as the packet is received. Because SL=1, the behavior applies
+# the PSP processing on the packet as follows: i) SL is decreased, i.e. from
+# SL=1 to SL=0; ii) last SID (cafe::2) is copied into the IPv6 DA; iii) the
+# outermost SRH is removed from the extension headers following the IPv6 header.
+# Once the PSP processing is completed, the packet is forwarded to the host hs-2
+# (destination).
+#
+# Traffic from hs-2 to hs-1
+# -------------------------
+#
+# Packets generated from hs-2 and directed to hs-1 are handled by rt-2 which
+# applies the following SRv6 Policy:
+#
+#   i.b) IPv6 traffic, SID List=fcff:1::ef1,cafe::1
+#
+# Router rt-2 is configured to enforce the Policy (i.b) through the SRv6
+# H.Insert behavior which pushes the SRH after the existing IPv6 header. This
+# Policy steers the traffic from hs-2 across rt-1 and finally to the
+# destination hs-1
+#
+#
+# When the router rt-1 receives the packet, the PSP enabled SRv6 End behavior
+# associated with the SID fcff:1::ef1 is triggered. Since the SL=1,
+# the PSP operation takes place: i) the SL is decremented; ii) the IPv6 DA is
+# set with the last SID; iii) the SRH is removed from the extension headers
+# after the IPv6 header. At this point, the packet with IPv6 DA=cafe::1 is sent
+# to the destination, i.e. hs-1.
+
+# Kselftest framework requirement - SKIP code is 4.
+readonly ksft_skip=4
+
+readonly RDMSUFF="$(mktemp -u XXXXXXXX)"
+readonly DUMMY_DEVNAME="dum0"
+readonly RT2HS_DEVNAME="veth1"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv6_TESTS_ADDR=2001:db8::1
+readonly LOCATOR_SERVICE=fcff
+readonly END_FUNC=000e
+readonly END_PSP_FUNC=0ef1
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_nodename()
+{
+	local name="$1"
+
+	echo "${name}-${RDMSUFF}"
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	get_nodename "rt-${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	get_nodename "hs-${hsid}"
+}
+
+__create_namespace()
+{
+	local name="$1"
+
+	ip netns add "${name}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+
+	__create_namespace "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+
+	__create_namespace "${nsname}"
+}
+
+cleanup()
+{
+	local nsname
+	local i
+
+	# destroy routers
+	for i in ${ROUTERS}; do
+		nsname="$(get_rtname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# destroy hosts
+	for i in ${HOSTS}; do
+		nsname="$(get_hsname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		neigh_nsname="$(get_rtname "${neigh}")"
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Given the description of a router <id:op> as an input, the function returns
+# the <id> token which represents the ID of the router.
+# i.e. input: "12:psp"
+#      output: "12"
+__get_srv6_rtcfg_id()
+{
+	local element="$1"
+
+	echo "${element}" | cut -d':' -f1
+}
+
+# Given the description of a router <id:op> as an input, the function returns
+# the <op> token which represents the operation (e.g. End behavior with or
+# without flavors) configured for the node.
+
+# Note that when the operation represents an End behavior with a list of
+# flavors, the output is the ordered version of that list.
+# i.e. input: "5:usp,psp,usd"
+#      output: "psp,usd,usp"
+__get_srv6_rtcfg_op()
+{
+	local element="$1"
+
+	# return the lexicographically ordered flavors
+	echo "${element}" | cut -d':' -f2 | sed 's/,/\n/g' | sort | \
+		xargs | sed 's/ /,/g'
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+	ip -netns "${nsname}" link set lo up
+
+	ip -netns "${nsname}" link add ${DUMMY_DEVNAME} type dummy
+	ip -netns "${nsname}" link set ${DUMMY_DEVNAME} up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	# Local End behavior (note that "dev" is a dummy interface chosen for
+	# the sake of simplicity).
+	ip -netns "${nsname}" -6 route \
+		add "${LOCATOR_SERVICE}:${rt}::${END_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End dev "${DUMMY_DEVNAME}"
+
+
+	# all SIDs start with a common locator. Routes and SRv6 Endpoint
+	# behavior instances are grouped together in the 'localsid' table.
+	ip -netns "${nsname}" -6 rule \
+		add to "${LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+
+	# set default routes to unreachable
+	ip -netns "${nsname}" -6 route \
+		add unreachable default metric 4278198272 \
+		dev "${DUMMY_DEVNAME}"
+}
+
+# This helper function builds and installs the SID List (i.e. SRv6 Policy)
+# to be applied on incoming packets at the ingress node. Moreover, it
+# configures the SRv6 nodes specified in the SID List to process the traffic
+# according to the operations required by the Policy itself.
+# args:
+#  $1 - destination host (i.e. cafe::x host)
+#  $2 - SRv6 router configured for enforcing the SRv6 Policy
+#  $3 - compact way to represent a list of SRv6 routers with their operations
+#       (i.e. behaviors) that each of them needs to perform. Every <nodeid:op>
+#       element constructs a SID that is associated with the behavior <op> on
+#       the <nodeid> node. The list of such elements forms an SRv6 Policy.
+__setup_rt_policy()
+{
+	local dst="$1"
+	local encap_rt="$2"
+	local policy_rts="$3"
+	local behavior_cfg
+	local in_nsname
+	local rt_nsname
+	local policy=''
+	local function
+	local fullsid
+	local op_type
+	local node
+	local n
+
+	in_nsname="$(get_rtname "${encap_rt}")"
+
+	for n in ${policy_rts}; do
+		node="$(__get_srv6_rtcfg_id "${n}")"
+		op_type="$(__get_srv6_rtcfg_op "${n}")"
+		rt_nsname="$(get_rtname "${node}")"
+
+		case "${op_type}" in
+		"noflv")
+			policy="${policy}${LOCATOR_SERVICE}:${node}::${END_FUNC},"
+			function="${END_FUNC}"
+			behavior_cfg="End"
+			;;
+
+		"psp")
+			policy="${policy}${LOCATOR_SERVICE}:${node}::${END_PSP_FUNC},"
+			function="${END_PSP_FUNC}"
+			behavior_cfg="End flavors psp"
+			;;
+
+		*)
+			break
+			;;
+		esac
+
+		fullsid="${LOCATOR_SERVICE}:${node}::${function}"
+
+		# add SRv6 Endpoint behavior to the selected router
+		if ! ip -netns "${rt_nsname}" -6 route get "${fullsid}" \
+			&>/dev/null; then
+			ip -netns "${rt_nsname}" -6 route \
+				add "${fullsid}" \
+				table "${LOCALSID_TABLE_ID}" \
+				encap seg6local action ${behavior_cfg} \
+				dev "${DUMMY_DEVNAME}"
+		fi
+	done
+
+	# we need to remove the trailing comma to avoid inserting an empty
+	# address (::0) in the SID List.
+	policy="${policy%,}"
+
+	# add SRv6 policy to incoming traffic sent by connected hosts
+	ip -netns "${in_nsname}" -6 route \
+		add "${IPv6_HS_NETWORK}::${dst}" \
+		encap seg6 mode inline segs "${policy}" \
+		dev "${DUMMY_DEVNAME}"
+
+	ip -netns "${in_nsname}" -6 neigh \
+		add proxy "${IPv6_HS_NETWORK}::${dst}" \
+		dev "${RT2HS_DEVNAME}"
+}
+
+# see __setup_rt_policy
+setup_rt_policy_ipv6()
+{
+	__setup_rt_policy "$1" "$2" "$3"
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	hsname="$(get_hsname "${hs}")"
+	rtname="$(get_rtname "${rt}")"
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add veth0 type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr \
+		add "${IPv6_HS_NETWORK}::${hs}/64" dev veth0 nodad
+
+	ip -netns "${hsname}" link set veth0 up
+	ip -netns "${hsname}" link set lo up
+
+	ip -netns "${rtname}" addr \
+		add "${IPv6_HS_NETWORK}::254/64" dev "${RT2HS_DEVNAME}" nodad
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv6.conf."${RT2HS_DEVNAME}".proxy_ndp=1
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End behavior)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# set up SRv6 policies
+	# create a connection between hosts hs-1 and hs-2.
+	# The path between hs-1 and hs-2 traverses SRv6 aware routers.
+	# For each direction two path are chosen:
+	#
+	# Direction hs-1 -> hs-2 (PSP flavor)
+	#  - rt-1 (SRv6 H.Insert policy)
+	#  - rt-3 (SRv6 End behavior)
+	#  - rt-4 (SRv6 End flavor PSP with SL>1, acting as End behavior)
+	#  - rt-2 (SRv6 End flavor PSP with SL=1)
+	#
+	# Direction hs-2 -> hs-1 (PSP flavor)
+	#  - rt-2 (SRv6 H.Insert policy)
+	#  - rt-1 (SRv6 End flavor PSP with SL=1)
+	setup_rt_policy_ipv6 2 1 "3:noflv 4:psp 2:psp"
+	setup_rt_policy_ipv6 1 2 "1:psp"
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	rtsrc_nsname="$(get_rtname "${rtsrc}")"
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	hssrc_nsname="$(get_hsname "${hssrc}")"
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_srv6_end_flv_psp_tests()
+{
+	log_section "SRv6 connectivity test hosts (h1 <-> h2, PSP flavor)"
+
+	check_and_log_hs_connectivity 1 2
+	check_and_log_hs_connectivity 2 1
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	local flavor="$1"
+
+	if ! ip route help 2>&1 | grep -qo "${flavor}"; then
+		echo "SKIP: Missing SRv6 ${flavor} flavor support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+test_kernel_supp_or_ksft_skip()
+{
+	local flavor="$1"
+	local test_netns
+
+	test_netns="kflv-$(mktemp -u XXXXXXXX)"
+
+	if ! ip netns add "${test_netns}"; then
+		echo "SKIP: Cannot set up netns to test kernel support for flavors"
+		exit "${ksft_skip}"
+	fi
+
+	if ! ip -netns "${test_netns}" link \
+		add "${DUMMY_DEVNAME}" type dummy; then
+		echo "SKIP: Cannot set up dummy dev to test kernel support for flavors"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	if ! ip -netns "${test_netns}" link \
+		set "${DUMMY_DEVNAME}" up; then
+		echo "SKIP: Cannot activate dummy dev to test kernel support for flavors"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	if ! ip -netns "${test_netns}" -6 route \
+		add "${IPv6_TESTS_ADDR}" encap seg6local \
+		action End flavors "${flavor}" dev "${DUMMY_DEVNAME}"; then
+		echo "SKIP: ${flavor} flavor not supported in kernel"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	ip netns del "${test_netns}"
+}
+
+test_dummy_dev_or_ksft_skip()
+{
+	local test_netns
+
+	test_netns="dummy-$(mktemp -u XXXXXXXX)"
+
+	if ! ip netns add "${test_netns}"; then
+		echo "SKIP: Cannot set up netns for testing dummy dev support"
+		exit "${ksft_skip}"
+	fi
+
+	modprobe dummy &>/dev/null || true
+	if ! ip -netns "${test_netns}" link \
+		add "${DUMMY_DEVNAME}" type dummy; then
+		echo "SKIP: dummy dev not supported"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	ip netns del "${test_netns}"
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+test_command_or_ksft_skip cut
+test_command_or_ksft_skip sed
+test_command_or_ksft_skip sort
+test_command_or_ksft_skip xargs
+
+test_dummy_dev_or_ksft_skip
+test_iproute2_supp_or_ksft_skip psp
+test_kernel_supp_or_ksft_skip psp
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+router_tests
+host2gateway_tests
+host_srv6_end_flv_psp_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/srv6_end_next_csid_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_next_csid_l3vpn_test.sh
new file mode 100755
index 000000000000..4bc135e5c22c
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_next_csid_l3vpn_test.sh
@@ -0,0 +1,1104 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+#
+# This script is designed for testing the support of NEXT-C-SID flavor for SRv6
+# End behavior.
+# A basic knowledge of SRv6 architecture [1] and of the compressed SID approach
+# [2] is assumed for the reader.
+#
+# The network topology used in the selftest is depicted hereafter, composed by
+# two hosts and four routers. Hosts hs-1 and hs-2 are connected through an
+# IPv4/IPv6 L3 VPN service, offered by routers rt-1, rt-2, rt-3 and rt-4 using
+# the NEXT-C-SID flavor. The key components for such VPNs are:
+#
+#    i) The SRv6 H.Encaps/H.Encaps.Red behaviors [1] apply SRv6 Policies on
+#       traffic received by connected hosts, initiating the VPN tunnel;
+#
+#   ii) The SRv6 End behavior [1] advances the active SID in the SID List
+#       carried by the SRH;
+#
+#  iii) The NEXT-C-SID mechanism [2] offers the possibility of encoding several
+#       SRv6 segments within a single 128-bit SID address, referred to as a
+#       Compressed SID (C-SID) container. In this way, the length of the SID
+#       List can be drastically reduced.
+#       The NEXT-C-SID is provided as a "flavor" of the SRv6 End behavior
+#       which advances the current C-SID (i.e. the Locator-Node Function defined
+#       in [2]) with the next one carried in the Argument, if available.
+#       When no more C-SIDs are available in the Argument, the SRv6 End behavior
+#       will apply the End function selecting the next SID in the SID List.
+#
+#   iv) The SRv6 End.DT46 behavior [1] is used for removing the SRv6 Policy and,
+#       thus, it terminates the VPN tunnel. Such a behavior is capable of
+#       handling, at the same time, both tunneled IPv4 and IPv6 traffic.
+#
+# [1] https://datatracker.ietf.org/doc/html/rfc8986
+# [2] https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-srh-compression
+#
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y in
+# the selftest network.
+#
+# Local SID/C-SID table
+# =====================
+#
+# Each SRv6 router is configured with a Local SID/C-SID table in which
+# SIDs/C-SIDs are stored. Considering an SRv6 router rt-x, SIDs/C-SIDs are
+# configured in the Local SID/C-SIDs table as follows:
+#
+#   Local SID/C-SID table for SRv6 router rt-x
+#   +-----------------------------------------------------------+
+#   |fcff:x::d46 is associated with the non-compressed SRv6     |
+#   |   End.DT46 behavior                                       |
+#   +-----------------------------------------------------------+
+#   |fcbb:0:0x00::/48 is associated with the NEXT-C-SID flavor  |
+#   |   of SRv6 End behavior                                    |
+#   +-----------------------------------------------------------+
+#   |fcbb:0:0x00:d46::/64 is associated with the SRv6 End.DT46  |
+#   |   behavior when NEXT-C-SID compression is turned on       |
+#   +-----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved for implementing SRv6 services with regular
+# (non compressed) SIDs. Reachability of SIDs is ensured by proper configuration
+# of the IPv6 routing tables in the routers.
+# Similarly, the fcbb:0::/32 prefix is reserved for implementing SRv6 VPN
+# services leveraging the NEXT-C-SID compression mechanism. Indeed, the
+# fcbb:0::/32 is used for encoding the Locator-Block while the Locator-Node
+# Function is encoded with 16 bits.
+#
+# Incoming traffic classification and application of SRv6 Policies
+# ================================================================
+#
+# An SRv6 ingress router applies different SRv6 Policies to the traffic received
+# from a connected host, considering the IPv4 or IPv6 destination address.
+# SRv6 policy enforcement consists of encapsulating the received traffic into a
+# new IPv6 packet with a given SID List contained in the SRH.
+# When the SID List contains only one SID, the SRH could be omitted completely
+# and that SID is stored directly in the IPv6 Destination Address (DA) (this is
+# called "reduced" encapsulation).
+#
+# Test cases for NEXT-C-SID
+# =========================
+#
+# We consider two test cases for NEXT-C-SID: i) single SID and ii) double SID.
+#
+# In the single SID test case we have a number of segments that are all
+# contained in a single Compressed SID (C-SID) container. Therefore the
+# resulting SID List has only one SID. Using the reduced encapsulation format
+# this will result in a packet with no SRH.
+#
+# In the double SID test case we have one segment carried in a Compressed SID
+# (C-SID) container, followed by a regular (non compressed) SID. The resulting
+# SID List has two segments and it is possible to test the advance to the next
+# SID when all the C-SIDs in a C-SID container have been processed. Using the
+# reduced encapsulation format this will result in a packet with an SRH
+# containing 1 segment.
+#
+# For the single SID test case, we use the IPv4 addresses of hs-1 and hs-2, for
+# the double SID test case, we use their IPv6 addresses. This is only done to
+# simplify the test setup and avoid adding other hosts or multiple addresses on
+# the same interface of a host.
+#
+# Traffic from hs-1 to hs-2
+# -------------------------
+#
+# Packets generated from hs-1 and directed towards hs-2 are handled by rt-1
+# which applies the SRv6 Policies as follows:
+#
+#   i) IPv6 DA=cafe::2, H.Encaps.Red with SID List=fcbb:0:0400:0300:0200:d46::
+#  ii) IPv4 DA=10.0.0.2, H.Encaps.Red with SID List=fcbb:0:0300::,fcff:2::d46
+#
+# ### i) single SID
+#
+# The router rt-1 is configured to enforce the given Policy through the SRv6
+# H.Encaps.Red behavior which avoids the presence of the SRH at all, since it
+# pushes the single SID directly in the IPv6 DA. Such a SID encodes a whole
+# C-SID container carrying several C-SIDs (e.g. 0400, 0300, etc).
+#
+# As the packet reaches the router rt-4, the enabled NEXT-C-SID SRv6 End
+# behavior (associated with fcbb:0:0400::/48) is triggered. This behavior
+# analyzes the IPv6 DA and checks whether the Argument of the C-SID container
+# is zero or not. In this case, the Argument is *NOT* zero and the IPv6 DA is
+# updated as follows:
+#
+# +---------------------------------------------------------------+
+# | Before applying the rt-4 enabled NEXT-C-SID SRv6 End behavior |
+# +---------------------------------------------------------------+
+# |                            +---------- Argument               |
+# |                     vvvvvvvvvvvvvvvv                          |
+# | IPv6 DA fcbb:0:0400:0300:0200:d46::                           |
+# |                ^^^^    <-- shifting                           |
+# |                  |                                            |
+# |          Locator-Node Function                                |
+# +---------------------------------------------------------------+
+# | After applying the rt-4 enabled NEXT-C-SID SRv6 End behavior  |
+# +---------------------------------------------------------------+
+# |                          +---------- Argument                 |
+# |                    vvvvvvvvvvvv                               |
+# | IPv6 DA fcbb:0:0300:0200:d46::                                |
+# |                ^^^^                                           |
+# |                  |                                            |
+# |          Locator-Node Function                                |
+# +---------------------------------------------------------------+
+#
+# After having applied the enabled NEXT-C-SID SRv6 End behavior, the packet is
+# sent to the next node, i.e. rt-3.
+#
+# The enabled NEXT-C-SID SRv6 End behavior on rt-3 is executed as the packet is
+# received. This behavior processes the packet and updates the IPv6 DA with
+# fcbb:0:0200:d46::, since the Argument is *NOT* zero. Then, the packet is sent
+# to the router rt-2.
+#
+# The router rt-2 is configured for decapsulating the inner IPv6 packet and,
+# for this reason, it applies the SRv6 End.DT46 behavior on the received
+# packet. It is worth noting that the SRv6 End.DT46 behavior does not require
+# the presence of the SRH: it is fully capable to operate properly on
+# IPv4/IPv6-in-IPv6 encapsulations.
+# At the end of the decap operation, the packet is sent to the
+# host hs-2.
+#
+# ### ii) double SID
+#
+# The router rt-1 is configured to enforce the given Policy through the SRv6
+# H.Encaps.Red. As a result, the first SID fcbb:0:0300:: is stored into the
+# IPv6 DA, while the SRH pushed into the packet is made of only one SID, i.e.
+# fcff:2::d46. Hence, the packet sent by hs-1 to hs-2 is encapsulated in an
+# outer IPv6 header plus the SRH.
+#
+# As the packet reaches the node rt-3, the router applies the enabled NEXT-C-SID
+# SRv6 End behavior.
+#
+# +---------------------------------------------------------------+
+# | Before applying the rt-3 enabled NEXT-C-SID SRv6 End behavior |
+# +---------------------------------------------------------------+
+# |                            +---------- Argument               |
+# |                      vvvv (Argument is all filled with zeros) |
+# | IPv6 DA fcbb:0:0300::                                         |
+# |                ^^^^                                           |
+# |                  |                                            |
+# |          Locator-Node Function                                |
+# +---------------------------------------------------------------+
+# | After applying the rt-3 enabled NEXT-C-SID SRv6 End behavior  |
+# +---------------------------------------------------------------+
+# |                                                               |
+# | IPv6 DA fcff:2::d46                                           |
+# |         ^^^^^^^^^^^                                           |
+# |              |                                                |
+# |        SID copied from the SID List contained in the SRH      |
+# +---------------------------------------------------------------+
+#
+# Since the Argument of the C-SID container is zero, the behavior can not
+# update the Locator-Node function with the next C-SID carried in the Argument
+# itself. Thus, the enabled NEXT-C-SID SRv6 End behavior operates as the
+# traditional End behavior: it updates the IPv6 DA by copying the next
+# available SID in the SID List carried by the SRH. After that, the packet is
+# sent to the node rt-2.
+#
+# Once the packet is received by rt-2, the router decapsulates the inner IPv6
+# packet using the SRv6 End.DT46 behavior (associated with the SID fcff:2::d46)
+# and sends it to the host hs-2.
+#
+# Traffic from hs-2 to hs-1
+# -------------------------
+#
+# Packets generated from hs-2 and directed towards hs-1 are handled by rt-2
+# which applies the SRv6 Policies as follows:
+#
+#   i) IPv6 DA=cafe::1, SID List=fcbb:0:0300:0400:0100:d46::
+#  ii) IPv4 DA=10.0.0.1, SID List=fcbb:0:0300::,fcff:1::d46
+#
+# For simplicity, such SRv6 Policies were chosen so that, in both use cases (i)
+# and (ii), the network paths crossed by traffic from hs-2 to hs-1 are the same
+# as those taken by traffic from hs-1 to hs-2.
+# In this way, traffic from hs-2 to hs-1 is processed similarly to traffic from
+# hs-1 to hs-2. So, the traffic processing scheme turns out to be the same as
+# that adopted in the use cases already examined (of course, it is necessary to
+# consider the different SIDs/C-SIDs).
+
+source lib.sh
+
+readonly DUMMY_DEVNAME="dum0"
+readonly VRF_TID=100
+readonly VRF_DEVNAME="vrf-${VRF_TID}"
+readonly RT2HS_DEVNAME="veth-t${VRF_TID}"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly DT46_FUNC=0d46
+readonly HEADEND_ENCAP="encap.red"
+
+# do not add ':' as separator
+readonly LCBLOCK_ADDR=fcbb0000
+readonly LCBLOCK_BLEN=32
+# do not add ':' as separator
+readonly LCNODEFUNC_FMT="0%d00"
+readonly LCNODEFUNC_BLEN=16
+
+readonly LCBLOCK_NODEFUNC_BLEN=$((LCBLOCK_BLEN + LCNODEFUNC_BLEN))
+
+readonly CSID_CNTR_PREFIX="dead:beaf::/32"
+# ID of the router used for testing the C-SID container cfgs
+readonly CSID_CNTR_RT_ID_TEST=1
+# Routing table used for testing the C-SID container cfgs
+readonly CSID_CNTR_RT_TABLE=91
+
+# C-SID container configurations to be tested
+#
+# An entry of the array is defined as "a,b,c" where:
+# - 'a' and 'b' elements represent respectively the Locator-Block length
+#   (lblen) in bits and the Locator-Node Function length (nflen) in bits.
+#   'a' and 'b' can be set to default values using the placeholder "d" which
+#   indicates the default kernel values (32 for lblen and 16 for nflen);
+#   otherwise, any numeric value is accepted;
+# - 'c' indicates whether the C-SID configuration provided by the values 'a'
+#   and 'b' should be considered valid ("y") or invalid ("n").
+declare -ra CSID_CONTAINER_CFGS=(
+	"d,d,y"
+	"d,16,y"
+	"16,d,y"
+	"16,32,y"
+	"32,16,y"
+	"48,8,y"
+	"8,48,y"
+	"d,0,n"
+	"0,d,n"
+	"32,0,n"
+	"0,32,n"
+	"17,d,n"
+	"d,17,n"
+	"120,16,n"
+	"16,120,n"
+	"0,128,n"
+	"128,0,n"
+	"130,0,n"
+	"0,130,n"
+	"0,0,n"
+)
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	echo "rt_${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	echo "hs_${hsid}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+	setup_ns "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+	setup_ns "${nsname}"
+}
+
+cleanup()
+{
+	cleanup_all_ns
+
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		eval neigh_nsname=\${$(get_rtname "${neigh}")}
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+        ip -netns "${nsname}" link add "${DUMMY_DEVNAME}" type dummy
+
+        ip -netns "${nsname}" link set "${DUMMY_DEVNAME}" up
+	ip -netns "${nsname}" link set lo up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+# build an ipv6 prefix/address based on the input string
+# Note that the input string does not contain ':' and '::' which are considered
+# to be implicit.
+# e.g.:
+#  - input:  fbcc00000400300
+#  - output: fbcc:0000:0400:0300:0000:0000:0000:0000
+#                                ^^^^^^^^^^^^^^^^^^^
+#                              fill the address with 0s
+build_ipv6_addr()
+{
+	local addr="$1"
+	local out=""
+	local strlen="${#addr}"
+	local padn
+	local i
+
+	# add ":" every 4 digits (16 bits)
+	for (( i = 0; i < strlen; i++ )); do
+		if (( i > 0 && i < 32 && (i % 4) == 0 )); then
+			out="${out}:"
+		fi
+
+		out="${out}${addr:$i:1}"
+	done
+
+	# fill the remaining bits of the address with 0s
+	padn=$((32 - strlen))
+	for (( i = padn; i > 0; i-- )); do
+		if (( i > 0 && i < 32 && (i % 4) == 0 )); then
+			out="${out}:"
+		fi
+
+		out="${out}0"
+	done
+
+	printf "${out}"
+}
+
+build_csid()
+{
+	local nodeid="$1"
+
+	printf "${LCNODEFUNC_FMT}" "${nodeid}"
+}
+
+build_lcnode_func_prefix()
+{
+	local nodeid="$1"
+	local lcnodefunc
+	local prefix
+	local out
+
+	lcnodefunc="$(build_csid "${nodeid}")"
+	prefix="$(build_ipv6_addr "${LCBLOCK_ADDR}${lcnodefunc}")"
+
+	out="${prefix}/${LCBLOCK_NODEFUNC_BLEN}"
+
+	echo "${out}"
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+	local lcnode_func_prefix
+	local lcblock_prefix
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+
+		# set the underlay network for C-SIDs reachability
+		lcnode_func_prefix="$(build_lcnode_func_prefix "${neigh}")"
+
+		ip -netns "${nsname}" -6 route \
+			add "${lcnode_func_prefix}" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	lcnode_func_prefix="$(build_lcnode_func_prefix "${rt}")"
+
+	# enabled NEXT-C-SID SRv6 End behavior (note that "dev" is the dummy
+	# dum0 device chosen for the sake of simplicity).
+	ip -netns "${nsname}" -6 route \
+		add "${lcnode_func_prefix}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End flavors next-csid \
+		lblen "${LCBLOCK_BLEN}" nflen "${LCNODEFUNC_BLEN}" \
+		dev "${DUMMY_DEVNAME}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behavior instances are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule \
+		add to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+
+	# common locator block for NEXT-C-SIDS compression mechanism.
+	lcblock_prefix="$(build_ipv6_addr "${LCBLOCK_ADDR}")"
+	ip -netns "${nsname}" -6 rule \
+		add to "${lcblock_prefix}/${LCBLOCK_BLEN}" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router as well as the
+# decap SID in the egress one.
+# args:
+#  $1 - src host (evaluate automatically the ingress router)
+#  $2 - dst host (evaluate automatically the egress router)
+#  $3 - SRv6 routers configured for steering traffic (End behaviors)
+#  $4 - single SID or double SID
+#  $5 - traffic type (IPv6 or IPv4)
+__setup_l3vpn()
+{
+	local src="$1"
+	local dst="$2"
+	local end_rts="$3"
+	local mode="$4"
+	local traffic="$5"
+	local nsname
+	local policy
+	local container
+	local decapsid
+	local lcnfunc
+	local dt
+	local n
+	local rtsrc_nsname
+	local rtdst_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${src}")}
+	eval rtdst_nsname=\${$(get_rtname "${dst}")}
+
+	container="${LCBLOCK_ADDR}"
+
+	# build first SID (C-SID container)
+	for n in ${end_rts}; do
+		lcnfunc="$(build_csid "${n}")"
+
+		container="${container}${lcnfunc}"
+	done
+
+	if [ "${mode}" -eq 1 ]; then
+		# single SID policy
+		dt="$(build_csid "${dst}")${DT46_FUNC}"
+		container="${container}${dt}"
+		# build the full ipv6 address for the container
+		policy="$(build_ipv6_addr "${container}")"
+
+		# build the decap SID used in the decap node
+		container="${LCBLOCK_ADDR}${dt}"
+		decapsid="$(build_ipv6_addr "${container}")"
+	else
+		# double SID policy
+		decapsid="${VPN_LOCATOR_SERVICE}:${dst}::${DT46_FUNC}"
+
+		policy="$(build_ipv6_addr "${container}"),${decapsid}"
+	fi
+
+	# apply encap policy
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${rtsrc_nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${HEADEND_ENCAP}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+
+		ip -netns "${rtsrc_nsname}" -6 neigh \
+			add proxy "${IPv6_HS_NETWORK}::${dst}" \
+			dev "${RT2HS_DEVNAME}"
+	else
+		# "dev" must be different from the one where the packet is
+		# received, otherwise the proxy arp does not work.
+		ip -netns "${rtsrc_nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${HEADEND_ENCAP}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+	fi
+
+	# apply decap
+	# Local End.DT46 behavior (decap)
+	ip -netns "${rtdst_nsname}" -6 route \
+		add "${decapsid}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DT46 vrftable "${VRF_TID}" \
+		dev "${VRF_DEVNAME}"
+}
+
+# see __setup_l3vpn()
+setup_ipv4_vpn_2sids()
+{
+	__setup_l3vpn "$1" "$2" "$3" 2 4
+}
+
+# see __setup_l3vpn()
+setup_ipv6_vpn_1sid()
+{
+	__setup_l3vpn "$1" "$2" "$3" 1 6
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	eval hsname=\${$(get_hsname "${hs}")}
+	eval rtname=\${$(get_rtname "${rt}")}
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add veth0 type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr \
+		add "${IPv6_HS_NETWORK}::${hs}/64" dev veth0 nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" dev veth0
+
+	ip -netns "${hsname}" link set veth0 up
+	ip -netns "${hsname}" link set lo up
+
+	# configure the VRF on the router which is directly connected to the
+	# source host.
+	ip -netns "${rtname}" link \
+		add "${VRF_DEVNAME}" type vrf table "${VRF_TID}"
+	ip -netns "${rtname}" link set "${VRF_DEVNAME}" up
+
+	# enslave the veth interface connecting the router with the host to the
+	# VRF in the access router
+	ip -netns "${rtname}" link \
+		set "${RT2HS_DEVNAME}" master "${VRF_DEVNAME}"
+
+	# set default routes to unreachable for both ipv6 and ipv4
+	ip -netns "${rtname}" -6 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+	ip -netns "${rtname}" -4 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+
+	ip -netns "${rtname}" addr \
+		add "${IPv6_HS_NETWORK}::254/64" dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv6.conf."${RT2HS_DEVNAME}".proxy_ndp=1
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".proxy_arp=1
+
+	ip netns exec "${rtname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DT46)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# set up SRv6 Policies
+
+	# create an IPv6 VPN between hosts hs-1 and hs-2.
+	#
+	# Direction hs-1 -> hs-2
+	# - rt-1 encap (H.Encaps.Red)
+	# - rt-4 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-3 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-2 SRv6 End.DT46 behavior
+	setup_ipv6_vpn_1sid 1 2 "4 3"
+
+	# Direction hs2 -> hs-1
+	# - rt-2 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-4 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-1 SRv6 End.DT46 behavior
+	setup_ipv6_vpn_1sid 2 1 "3 4"
+
+	# create an IPv4 VPN between hosts hs-1 and hs-2
+	#
+	# Direction hs-1 -> hs-2
+	# - rt-1 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-2 SRv6 End.DT46 behavior
+	setup_ipv4_vpn_2sids 1 2 "3"
+
+	# Direction hs-2 -> hs-1
+	# - rt-2 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End behavior (NEXT-C-SID flavor)
+	# - rt-1 SRv6 End.DT46 behavior
+	setup_ipv4_vpn_2sids 2 1 "3"
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${rtsrc}")}
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv6)"
+
+	check_and_log_hs_ipv6_connectivity 1 2
+	check_and_log_hs_ipv6_connectivity 2 1
+
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv4)"
+
+	check_and_log_hs_ipv4_connectivity 1 2
+	check_and_log_hs_ipv4_connectivity 2 1
+}
+
+__nextcsid_end_behavior_test()
+{
+	local nsname="$1"
+	local cmd="$2"
+	local blen="$3"
+	local flen="$4"
+	local layout=""
+
+	if [ "${blen}" != "d" ]; then
+		layout="${layout} lblen ${blen}"
+	fi
+
+	if [ "${flen}" != "d" ]; then
+		layout="${layout} nflen ${flen}"
+	fi
+
+	ip -netns "${nsname}" -6 route \
+		"${cmd}" "${CSID_CNTR_PREFIX}" \
+		table "${CSID_CNTR_RT_TABLE}" \
+		encap seg6local action End flavors next-csid ${layout} \
+		dev "${DUMMY_DEVNAME}" &>/dev/null
+
+	return "$?"
+}
+
+rt_x_nextcsid_end_behavior_test()
+{
+	local rt="$1"
+	local blen="$2"
+	local flen="$3"
+	local nsname
+	local ret
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	__nextcsid_end_behavior_test "${nsname}" "add" "${blen}" "${flen}"
+	ret="$?"
+	__nextcsid_end_behavior_test "${nsname}" "del" "${blen}" "${flen}"
+
+	return "${ret}"
+}
+
+__parse_csid_container_cfg()
+{
+	local cfg="$1"
+	local index="$2"
+	local out
+
+	echo "${cfg}" | cut -d',' -f"${index}"
+}
+
+csid_container_cfg_tests()
+{
+	local valid
+	local blen
+	local flen
+	local cfg
+	local ret
+
+	log_section "C-SID Container config tests (legend: d='kernel default')"
+
+	for cfg in "${CSID_CONTAINER_CFGS[@]}"; do
+		blen="$(__parse_csid_container_cfg "${cfg}" 1)"
+		flen="$(__parse_csid_container_cfg "${cfg}" 2)"
+		valid="$(__parse_csid_container_cfg "${cfg}" 3)"
+
+		rt_x_nextcsid_end_behavior_test \
+			"${CSID_CNTR_RT_ID_TEST}" \
+			"${blen}" \
+			"${flen}"
+		ret="$?"
+
+		if [ "${valid}" == "y" ]; then
+			log_test "${ret}" 0 \
+				"Accept valid C-SID container cfg (lblen=${blen}, nflen=${flen})"
+		else
+			log_test "${ret}" 2 \
+				"Reject invalid C-SID container cfg (lblen=${blen}, nflen=${flen})"
+		fi
+	done
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "next-csid"; then
+		echo "SKIP: Missing SRv6 NEXT-C-SID flavor support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+test_dummy_dev_or_ksft_skip()
+{
+        local test_netns
+
+        test_netns="dummy-$(mktemp -u XXXXXXXX)"
+
+        if ! ip netns add "${test_netns}"; then
+                echo "SKIP: Cannot set up netns for testing dummy dev support"
+                exit "${ksft_skip}"
+        fi
+
+        modprobe dummy &>/dev/null || true
+        if ! ip -netns "${test_netns}" link \
+                add "${DUMMY_DEVNAME}" type dummy; then
+                echo "SKIP: dummy dev not supported"
+
+                ip netns del "${test_netns}"
+                exit "${ksft_skip}"
+        fi
+
+        ip netns del "${test_netns}"
+}
+
+test_vrf_or_ksft_skip()
+{
+	modprobe vrf &>/dev/null || true
+	if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+		echo "SKIP: vrf sysctl does not exist"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+test_command_or_ksft_skip cut
+
+test_iproute2_supp_or_ksft_skip
+test_dummy_dev_or_ksft_skip
+test_vrf_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+csid_container_cfg_tests
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/srv6_end_x_next_csid_l3vpn_test.sh b/tools/testing/selftests/net/srv6_end_x_next_csid_l3vpn_test.sh
new file mode 100755
index 000000000000..34b781a2ae74
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_end_x_next_csid_l3vpn_test.sh
@@ -0,0 +1,1220 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+# author: Paolo Lungaroni <paolo.lungaroni@uniroma2.it>
+#
+# This script is designed for testing the support of NEXT-C-SID flavor for SRv6
+# End.X behavior.
+# A basic knowledge of SRv6 architecture [1] and of the compressed SID approach
+# [2] is assumed for the reader.
+#
+# The network topology used in the selftest is depicted hereafter, composed of
+# two hosts and four routers. Hosts hs-1 and hs-2 are connected through an
+# IPv4/IPv6 L3 VPN service, offered by routers rt-1, rt-2, rt-3 and rt-4 using
+# the NEXT-C-SID flavor. The key components for such VPNs are:
+#
+#    i) The SRv6 H.Encaps/H.Encaps.Red behaviors [1] apply SRv6 Policies on
+#       traffic received by connected hosts, initiating the VPN tunnel;
+#
+#   ii) The SRv6 End.X behavior [1] (Endpoint with L3 cross connect) is a
+#       variant of SRv6 End behavior. It advances the active SID in the SID
+#       List carried by the SRH and forwards the packet to an L3 adjacency;
+#
+#  iii) The NEXT-C-SID mechanism [2] offers the possibility of encoding several
+#       SRv6 segments within a single 128-bit SID address, referred to as a
+#       Compressed SID (C-SID) container. In this way, the length of the SID
+#       List can be drastically reduced.
+#       The NEXT-C-SID is provided as a "flavor" of the SRv6 End.X behavior
+#       which advances the current C-SID (i.e. the Locator-Node Function defined
+#       in [2]) with the next one carried in the Argument, if available.
+#       When no more C-SIDs are available in the Argument, the SRv6 End.X
+#       behavior will apply the End.X function selecting the next SID in the SID
+#       List;
+#
+#   iv) The SRv6 End.DT46 behavior [1] is used for removing the SRv6 Policy and,
+#       thus, it terminates the VPN tunnel. Such a behavior is capable of
+#       handling, at the same time, both tunneled IPv4 and IPv6 traffic.
+#
+# [1] https://datatracker.ietf.org/doc/html/rfc8986
+# [2] https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-srh-compression
+#
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y in
+# the selftest network.
+#
+# In addition, every router interface connecting rt-x to rt-y is assigned an
+# IPv6 link-local address fe80::x:y/64.
+#
+# Local SID/C-SID table
+# =====================
+#
+# Each SRv6 router is configured with a Local SID/C-SID table in which
+# SIDs/C-SIDs are stored. Considering an SRv6 router rt-x, SIDs/C-SIDs are
+# configured in the Local SID/C-SIDs table as follows:
+#
+#   Local SID/C-SID table for SRv6 router rt-x
+#   +-----------------------------------------------------------+
+#   |fcff:x::d46 is associated with the non-compressed SRv6     |
+#   |   End.DT46 behavior                                       |
+#   +-----------------------------------------------------------+
+#   |fcbb:0:0x00::/48 is associated with the NEXT-C-SID flavor  |
+#   |   of SRv6 End.X behavior                                  |
+#   +-----------------------------------------------------------+
+#   |fcbb:0:0x00:d46::/64 is associated with the SRv6 End.DT46  |
+#   |   behavior when NEXT-C-SID compression is turned on       |
+#   +-----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved for implementing SRv6 services with regular
+# (non compressed) SIDs. Reachability of SIDs is ensured by proper configuration
+# of the IPv6 routing tables in the routers.
+# Similarly, the fcbb:0::/32 prefix is reserved for implementing SRv6 VPN
+# services leveraging the NEXT-C-SID compression mechanism. Indeed, the
+# fcbb:0::/32 is used for encoding the Locator-Block while the Locator-Node
+# Function is encoded with 16 bits.
+#
+# Incoming traffic classification and application of SRv6 Policies
+# ================================================================
+#
+# An SRv6 ingress router applies different SRv6 Policies to the traffic received
+# from a connected host, considering the IPv4 or IPv6 destination address.
+# SRv6 policy enforcement consists of encapsulating the received traffic into a
+# new IPv6 packet with a given SID List contained in the SRH.
+# When the SID List contains only one SID, the SRH could be omitted completely
+# and that SID is stored directly in the IPv6 Destination Address (DA) (this is
+# called "reduced" encapsulation).
+#
+# Test cases for NEXT-C-SID
+# =========================
+#
+# We consider two test cases for NEXT-C-SID: i) single SID and ii) double SID.
+#
+# In the single SID test case we have a number of segments that are all
+# contained in a single Compressed SID (C-SID) container. Therefore the
+# resulting SID List has only one SID. Using the reduced encapsulation format
+# this will result in a packet with no SRH.
+#
+# In the double SID test case we have one segment carried in a Compressed SID
+# (C-SID) container, followed by a regular (non compressed) SID. The resulting
+# SID List has two segments and it is possible to test the advance to the next
+# SID when all the C-SIDs in a C-SID container have been processed. Using the
+# reduced encapsulation format this will result in a packet with an SRH
+# containing 1 segment.
+#
+# For the single SID test case, we use the IPv6 addresses of hs-1 and hs-2, for
+# the double SID test case, we use their IPv4 addresses. This is only done to
+# simplify the test setup and avoid adding other hosts or multiple addresses on
+# the same interface of a host.
+#
+# Traffic from hs-1 to hs-2
+# -------------------------
+#
+# Packets generated from hs-1 and directed towards hs-2 are handled by rt-1
+# which applies the SRv6 Policies as follows:
+#
+#   i) IPv6 DA=cafe::2, H.Encaps.Red with SID List=fcbb:0:0300:0200:d46::
+#  ii) IPv4 DA=10.0.0.2, H.Encaps.Red with SID List=fcbb:0:0300::,fcff:2::d46
+#
+# ### i) single SID
+#
+# The router rt-1 is configured to enforce the given Policy through the SRv6
+# H.Encaps.Red behavior which avoids the presence of the SRH at all, since it
+# pushes the single SID directly in the IPv6 DA. Such a SID encodes a whole
+# C-SID container carrying several C-SIDs (e.g. 0300, 0200, etc).
+#
+# As the packet reaches the router rt-3, the enabled NEXT-C-SID SRv6 End.X
+# behavior (associated with fcbb:0:0300::/48) is triggered. This behavior
+# analyzes the IPv6 DA and checks whether the Argument of the C-SID container
+# is zero or not. In this case, the Argument is *NOT* zero and the IPv6 DA is
+# updated as follows:
+#
+# +-----------------------------------------------------------------+
+# | Before applying the rt-3 enabled NEXT-C-SID SRv6 End.X behavior |
+# +-----------------------------------------------------------------+
+# |                            +---------- Argument                 |
+# |                     vvvvvvvvvv                                  |
+# | IPv6 DA fcbb:0:0300:0200:d46::                                  |
+# |                ^^^^    <-- shifting                             |
+# |                  |                                              |
+# |          Locator-Node Function                                  |
+# +-----------------------------------------------------------------+
+# | After applying the rt-3 enabled NEXT-C-SID SRv6 End.X behavior  |
+# +-----------------------------------------------------------------+
+# |                          +---------- Argument                   |
+# |                    vvvvvv                                       |
+# | IPv6 DA fcbb:0:0200:d46::                                       |
+# |                ^^^^                                             |
+# |                  |                                              |
+# |          Locator-Node Function                                  |
+# +-----------------------------------------------------------------+
+#
+# After having applied the enabled NEXT-C-SID SRv6 End.X behavior, the packet
+# is sent to rt-4 node using the L3 adjacency address fcf0:0:3:4::4.
+#
+# The node rt-4 performs a plain IPv6 forward to the rt-2 router according to
+# its Local SID table and using the IPv6 DA fcbb:0:0200:d46:: .
+#
+# The router rt-2 is configured for decapsulating the inner IPv6 packet and,
+# for this reason, it applies the SRv6 End.DT46 behavior on the received
+# packet. It is worth noting that the SRv6 End.DT46 behavior does not require
+# the presence of the SRH: it is fully capable to operate properly on
+# IPv4/IPv6-in-IPv6 encapsulations.
+# At the end of the decap operation, the packet is sent to the host hs-2.
+#
+# ### ii) double SID
+#
+# The router rt-1 is configured to enforce the given Policy through the SRv6
+# H.Encaps.Red. As a result, the first SID fcbb:0:0300:: is stored into the
+# IPv6 DA, while the SRH pushed into the packet is made of only one SID, i.e.
+# fcff:2::d46. Hence, the packet sent by hs-1 to hs-2 is encapsulated in an
+# outer IPv6 header plus the SRH.
+#
+# As the packet reaches the node rt-3, the router applies the enabled NEXT-C-SID
+# SRv6 End.X behavior.
+#
+# +-----------------------------------------------------------------+
+# | Before applying the rt-3 enabled NEXT-C-SID SRv6 End.X behavior |
+# +-----------------------------------------------------------------+
+# |                      +---------- Argument                       |
+# |                      vvvv (Argument is all filled with zeros)   |
+# | IPv6 DA fcbb:0:0300::                                           |
+# |                ^^^^                                             |
+# |                  |                                              |
+# |          Locator-Node Function                                  |
+# +-----------------------------------------------------------------+
+# | After applying the rt-3 enabled NEXT-C-SID SRv6 End.X behavior  |
+# +-----------------------------------------------------------------+
+# |                                                                 |
+# | IPv6 DA fcff:2::d46                                             |
+# |         ^^^^^^^^^^^                                             |
+# |              |                                                  |
+# |        SID copied from the SID List contained in the SRH        |
+# +-----------------------------------------------------------------+
+#
+# Since the Argument of the C-SID container is zero, the behavior can not
+# update the Locator-Node function with the next C-SID carried in the Argument
+# itself. Thus, the enabled NEXT-C-SID SRv6 End.X behavior operates as the
+# traditional End.X behavior: it updates the IPv6 DA by copying the next
+# available SID in the SID List carried by the SRH. Next, the packet is
+# forwarded to the rt-4 node using the L3 adjacency fcf0:3:4::4 previously
+# configured for this behavior.
+#
+# The node rt-4 performs a plain IPv6 forward to the rt-2 router according to
+# its Local SID table and using the IPv6 DA fcff:2::d46.
+#
+# Once the packet is received by rt-2, the router decapsulates the inner IPv4
+# packet using the SRv6 End.DT46 behavior (associated with the SID fcff:2::d46)
+# and sends it to the host hs-2.
+#
+# Traffic from hs-2 to hs-1
+# -------------------------
+#
+# Packets generated from hs-2 and directed towards hs-1 are handled by rt-2
+# which applies the SRv6 Policies as follows:
+#
+#   i) IPv6 DA=cafe::1, SID List=fcbb:0:0400:0100:d46::
+#  ii) IPv4 DA=10.0.0.1, SID List=fcbb:0:0300::,fcff:1::d46
+#
+# ### i) single SID
+#
+# The node hs-2 sends an IPv6 packet directed to node hs-1. The router rt-2 is
+# directly connected to hs-2 and receives the packet. Rt-2 applies the
+# H.Encap.Red behavior with policy i) described above. Since there is only one
+# SID, the SRH header is omitted and the policy is inserted directly into the DA
+# of IPv6 packet.
+#
+# The packet reaches the router rt-4 and the enabled NEXT-C-SID SRv6 End.X
+# behavior (associated with fcbb:0:0400::/48) is triggered. This behavior
+# analyzes the IPv6 DA and checks whether the Argument of the C-SID container
+# is zero or not. The Argument is *NOT* zero and the C-SID in the IPv6 DA is
+# advanced. At this point, the current IPv6 DA is fcbb:0:0100:d46:: .
+# The enabled NEXT-C-SID SRv6 End.X behavior is configured with the L3 adjacency
+# fcf0:0:1:4::1, used to route traffic to the rt-1 node.
+#
+# The router rt-1 is configured for decapsulating the inner packet. It applies
+# the SRv6 End.DT46 behavior on the received packet. Decapsulation does not
+# require the presence of the SRH. At the end of the decap operation, the packet
+# is sent to the host hs-1.
+#
+# ### ii) double SID
+#
+# The router rt-2 is configured to enforce the given Policy through the SRv6
+# H.Encaps.Red. As a result, the first SID fcbb:0:0300:: is stored into the
+# IPv6 DA, while the SRH pushed into the packet is made of only one SID, i.e.
+# fcff:1::d46. Hence, the packet sent by hs-2 to hs-1 is encapsulated in an
+# outer IPv6 header plus the SRH.
+#
+# As the packet reaches the node rt-3, the enabled NEXT-C-SID SRv6 End.X
+# behavior bound to the SID fcbb:0:0300::/48 is triggered.
+# Since the Argument of the C-SID container is zero, the behavior can not
+# update the Locator-Node function with the next C-SID carried in the Argument
+# itself. Thus, the enabled NEXT-C-SID SRv6 End-X behavior operates as the
+# traditional End.X behavior: it updates the IPv6 DA by copying the next
+# available SID in the SID List carried by the SRH. After that, the packet is
+# forwarded to the rt-4 node using the L3 adjacency (fcf0:3:4::4) previously
+# configured for this behavior.
+#
+# The node rt-4 performs a plain IPv6 forward to the rt-1 router according to
+# its Local SID table, considering the IPv6 DA fcff:1::d46.
+#
+# Once the packet is received by rt-1, the router decapsulates the inner IPv4
+# packet using the SRv6 End.DT46 behavior (associated with the SID fcff:1::d46)
+# and sends it to the host hs-1.
+
+source lib.sh
+
+readonly DUMMY_DEVNAME="dum0"
+readonly VRF_TID=100
+readonly VRF_DEVNAME="vrf-${VRF_TID}"
+readonly RT2HS_DEVNAME="veth-t${VRF_TID}"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly DT46_FUNC=0d46
+readonly HEADEND_ENCAP="encap.red"
+
+# do not add ':' as separator
+readonly LCBLOCK_ADDR=fcbb0000
+readonly LCBLOCK_BLEN=32
+# do not add ':' as separator
+readonly LCNODEFUNC_FMT="0%d00"
+readonly LCNODEFUNC_BLEN=16
+
+readonly LCBLOCK_NODEFUNC_BLEN=$((LCBLOCK_BLEN + LCNODEFUNC_BLEN))
+
+readonly CSID_CNTR_PREFIX="dead:beaf::/32"
+# ID of the router used for testing the C-SID container cfgs
+readonly CSID_CNTR_RT_ID_TEST=1
+# Routing table used for testing the C-SID container cfgs
+readonly CSID_CNTR_RT_TABLE=91
+
+# C-SID container configurations to be tested
+#
+# An entry of the array is defined as "a,b,c" where:
+# - 'a' and 'b' elements represent respectively the Locator-Block length
+#   (lblen) in bits and the Locator-Node Function length (nflen) in bits.
+#   'a' and 'b' can be set to default values using the placeholder "d" which
+#   indicates the default kernel values (32 for lblen and 16 for nflen);
+#   otherwise, any numeric value is accepted;
+# - 'c' indicates whether the C-SID configuration provided by the values 'a'
+#   and 'b' should be considered valid ("y") or invalid ("n").
+declare -ra CSID_CONTAINER_CFGS=(
+	"d,d,y"
+	"d,16,y"
+	"16,d,y"
+	"16,32,y"
+	"32,16,y"
+	"48,8,y"
+	"8,48,y"
+	"d,0,n"
+	"0,d,n"
+	"32,0,n"
+	"0,32,n"
+	"17,d,n"
+	"d,17,n"
+	"120,16,n"
+	"16,120,n"
+	"0,128,n"
+	"128,0,n"
+	"130,0,n"
+	"0,130,n"
+	"0,0,n"
+)
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	echo "rt_${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	echo "hs_${hsid}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+	setup_ns "${nsname}"
+
+	eval nsname=\${$(get_rtname "${rtid}")}
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+	setup_ns "${nsname}"
+}
+
+cleanup()
+{
+	cleanup_all_ns
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		eval neigh_nsname=\${$(get_rtname "${neigh}")}
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" addr \
+			add "fe80::${rt}:${neigh}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+        ip -netns "${nsname}" link add "${DUMMY_DEVNAME}" type dummy
+
+        ip -netns "${nsname}" link set "${DUMMY_DEVNAME}" up
+	ip -netns "${nsname}" link set lo up
+}
+
+# build an ipv6 prefix/address based on the input string
+# Note that the input string does not contain ':' and '::' which are considered
+# to be implicit.
+# e.g.:
+#  - input:  fbcc00000400300
+#  - output: fbcc:0000:0400:0300:0000:0000:0000:0000
+#                                ^^^^^^^^^^^^^^^^^^^
+#                              fill the address with 0s
+build_ipv6_addr()
+{
+	local addr="$1"
+	local out=""
+	local strlen="${#addr}"
+	local padn
+	local i
+
+	# add ":" every 4 digits (16 bits)
+	for (( i = 0; i < strlen; i++ )); do
+		if (( i > 0 && i < 32 && (i % 4) == 0 )); then
+			out="${out}:"
+		fi
+
+		out="${out}${addr:$i:1}"
+	done
+
+	# fill the remaining bits of the address with 0s
+	padn=$((32 - strlen))
+	for (( i = padn; i > 0; i-- )); do
+		if (( i > 0 && i < 32 && (i % 4) == 0 )); then
+			out="${out}:"
+		fi
+
+		out="${out}0"
+	done
+
+	printf "${out}"
+}
+
+build_csid()
+{
+	local nodeid="$1"
+
+	printf "${LCNODEFUNC_FMT}" "${nodeid}"
+}
+
+build_lcnode_func_prefix()
+{
+	local nodeid="$1"
+	local lcnodefunc
+	local prefix
+	local out
+
+	lcnodefunc="$(build_csid "${nodeid}")"
+	prefix="$(build_ipv6_addr "${LCBLOCK_ADDR}${lcnodefunc}")"
+
+	out="${prefix}/${LCBLOCK_NODEFUNC_BLEN}"
+
+	echo "${out}"
+}
+
+set_end_x_nextcsid()
+{
+	local rt="$1"
+	local adj="$2"
+
+	eval nsname=\${$(get_rtname "${rt}")}
+	net_prefix="$(get_network_prefix "${rt}" "${adj}")"
+	lcnode_func_prefix="$(build_lcnode_func_prefix "${rt}")"
+
+	# enabled NEXT-C-SID SRv6 End.X behavior (note that "dev" is the dummy
+	# dum0 device chosen for the sake of simplicity).
+	ip -netns "${nsname}" -6 route \
+		replace "${lcnode_func_prefix}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.X nh6 "${net_prefix}::${adj}" \
+		flavors next-csid lblen "${LCBLOCK_BLEN}" \
+		nflen "${LCNODEFUNC_BLEN}" dev "${DUMMY_DEVNAME}"
+}
+
+set_end_x_ll_nextcsid()
+{
+	local rt="$1"
+	local adj="$2"
+
+	eval nsname=\${$(get_rtname "${rt}")}
+	lcnode_func_prefix="$(build_lcnode_func_prefix "${rt}")"
+	nh6_ll_addr="fe80::${adj}:${rt}"
+	oifname="veth-rt-${rt}-${adj}"
+
+	# enabled NEXT-C-SID SRv6 End.X behavior via an IPv6 link-local nexthop
+	# address (note that "dev" is the dummy dum0 device chosen for the sake
+	# of simplicity).
+	ip -netns "${nsname}" -6 route \
+		replace "${lcnode_func_prefix}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.X nh6 "${nh6_ll_addr}" \
+		oif "${oifname}" flavors next-csid lblen "${LCBLOCK_BLEN}" \
+		nflen "${LCNODEFUNC_BLEN}" dev "${DUMMY_DEVNAME}"
+}
+
+set_underlay_sids_reachability()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			replace "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+
+		# set the underlay network for C-SIDs reachability
+		lcnode_func_prefix="$(build_lcnode_func_prefix "${neigh}")"
+
+		ip -netns "${nsname}" -6 route \
+			replace "${lcnode_func_prefix}" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+	local lcnode_func_prefix
+	local lcblock_prefix
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+        set_underlay_sids_reachability "${rt}" "${rt_neighs}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behavior instances are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule \
+		add to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+
+	# common locator block for NEXT-C-SIDS compression mechanism.
+	lcblock_prefix="$(build_ipv6_addr "${LCBLOCK_ADDR}")"
+	ip -netns "${nsname}" -6 rule \
+		add to "${lcblock_prefix}/${LCBLOCK_BLEN}" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router as well as the
+# decap SID in the egress one.
+# args:
+#  $1 - src host (evaluate automatically the ingress router)
+#  $2 - dst host (evaluate automatically the egress router)
+#  $3 - SRv6 routers configured for steering traffic (End.X behaviors)
+#  $4 - single SID or double SID
+#  $5 - traffic type (IPv6 or IPv4)
+__setup_l3vpn()
+{
+	local src="$1"
+	local dst="$2"
+	local end_rts="$3"
+	local mode="$4"
+	local traffic="$5"
+	local nsname
+	local policy
+	local container
+	local decapsid
+	local lcnfunc
+	local dt
+	local n
+	local rtsrc_nsname
+	local rtdst_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${src}")}
+	eval rtdst_nsname=\${$(get_rtname "${dst}")}
+
+	container="${LCBLOCK_ADDR}"
+
+	# build first SID (C-SID container)
+	for n in ${end_rts}; do
+		lcnfunc="$(build_csid "${n}")"
+
+		container="${container}${lcnfunc}"
+	done
+
+	if [ "${mode}" -eq 1 ]; then
+		# single SID policy
+		dt="$(build_csid "${dst}")${DT46_FUNC}"
+		container="${container}${dt}"
+		# build the full ipv6 address for the container
+		policy="$(build_ipv6_addr "${container}")"
+
+		# build the decap SID used in the decap node
+		container="${LCBLOCK_ADDR}${dt}"
+		decapsid="$(build_ipv6_addr "${container}")"
+	else
+		# double SID policy
+		decapsid="${VPN_LOCATOR_SERVICE}:${dst}::${DT46_FUNC}"
+
+		policy="$(build_ipv6_addr "${container}"),${decapsid}"
+	fi
+
+	# apply encap policy
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${rtsrc_nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${HEADEND_ENCAP}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+
+		ip -netns "${rtsrc_nsname}" -6 neigh \
+			add proxy "${IPv6_HS_NETWORK}::${dst}" \
+			dev "${RT2HS_DEVNAME}"
+	else
+		# "dev" must be different from the one where the packet is
+		# received, otherwise the proxy arp does not work.
+		ip -netns "${rtsrc_nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${HEADEND_ENCAP}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+	fi
+
+	# apply decap
+	# Local End.DT46 behavior (decap)
+	ip -netns "${rtdst_nsname}" -6 route \
+		add "${decapsid}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DT46 vrftable "${VRF_TID}" \
+		dev "${VRF_DEVNAME}"
+}
+
+# see __setup_l3vpn()
+setup_ipv4_vpn_2sids()
+{
+	__setup_l3vpn "$1" "$2" "$3" 2 4
+}
+
+# see __setup_l3vpn()
+setup_ipv6_vpn_1sid()
+{
+	__setup_l3vpn "$1" "$2" "$3" 1 6
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	eval hsname=\${$(get_hsname "${hs}")}
+	eval rtname=\${$(get_rtname "${rt}")}
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add veth0 type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr \
+		add "${IPv6_HS_NETWORK}::${hs}/64" dev veth0 nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" dev veth0
+
+	ip -netns "${hsname}" link set veth0 up
+	ip -netns "${hsname}" link set lo up
+
+	# configure the VRF on the router which is directly connected to the
+	# source host.
+	ip -netns "${rtname}" link \
+		add "${VRF_DEVNAME}" type vrf table "${VRF_TID}"
+	ip -netns "${rtname}" link set "${VRF_DEVNAME}" up
+
+	# enslave the veth interface connecting the router with the host to the
+	# VRF in the access router
+	ip -netns "${rtname}" link \
+		set "${RT2HS_DEVNAME}" master "${VRF_DEVNAME}"
+
+	# set default routes to unreachable for both ipv6 and ipv4
+	ip -netns "${rtname}" -6 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+	ip -netns "${rtname}" -4 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+
+	ip -netns "${rtname}" addr \
+		add "${IPv6_HS_NETWORK}::254/64" dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv6.conf."${RT2HS_DEVNAME}".proxy_ndp=1
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".proxy_arp=1
+
+	ip netns exec "${rtname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DT46)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# set up SRv6 Policies
+
+	# create an IPv6 VPN between hosts hs-1 and hs-2.
+	#
+	# Direction hs-1 -> hs-2
+	# - rt-1 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End.X behavior adj rt-4 (NEXT-C-SID flavor)
+	# - rt-4 Plain IPv6 Forwarding to rt-2
+	# - rt-2 SRv6 End.DT46 behavior
+	setup_ipv6_vpn_1sid 1 2 "3"
+
+	# Direction hs2 -> hs-1
+	# - rt-2 encap (H.Encaps.Red)
+	# - rt-4 SRv6 End.X behavior adj rt-1 (NEXT-C-SID flavor)
+	# - rt-1 SRv6 End.DT46 behavior
+	setup_ipv6_vpn_1sid 2 1 "4"
+
+	# create an IPv4 VPN between hosts hs-1 and hs-2
+	#
+	# Direction hs-1 -> hs-2
+	# - rt-1 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End.X behavior adj rt-4 (NEXT-C-SID flavor)
+	# - rt-4 Plain IPv6 Forwarding to rt-2
+	# - rt-2 SRv6 End.DT46 behavior
+	setup_ipv4_vpn_2sids 1 2 "3"
+
+	# Direction hs-2 -> hs-1
+	# - rt-2 encap (H.Encaps.Red)
+	# - rt-3 SRv6 End.X behavior adj rt-4 (NEXT-C-SID flavor)
+	# - rt-4 Plain IPv6 Forwarding to rt-1
+	# - rt-1 SRv6 End.DT46 behavior
+	setup_ipv4_vpn_2sids 2 1 "3"
+
+	# Setup the adjacencies in the SRv6 aware routers
+	# - rt-3 SRv6 End.X adjacency with rt-4
+	# - rt-4 SRv6 End.X adjacency with rt-1
+        set_end_x_nextcsid 3 4
+        set_end_x_nextcsid 4 1
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${rtsrc}")}
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv6)"
+
+	check_and_log_hs_ipv6_connectivity 1 2
+	check_and_log_hs_ipv6_connectivity 2 1
+
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv4)"
+
+	check_and_log_hs_ipv4_connectivity 1 2
+	check_and_log_hs_ipv4_connectivity 2 1
+
+	# Setup the adjacencies in the SRv6 aware routers using IPv6 link-local
+	# addresses.
+	# - rt-3 SRv6 End.X adjacency with rt-4
+	# - rt-4 SRv6 End.X adjacency with rt-1
+	set_end_x_ll_nextcsid 3 4
+	set_end_x_ll_nextcsid 4 1
+
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv6), link-local"
+
+	check_and_log_hs_ipv6_connectivity 1 2
+	check_and_log_hs_ipv6_connectivity 2 1
+
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv4), link-local"
+
+	check_and_log_hs_ipv4_connectivity 1 2
+	check_and_log_hs_ipv4_connectivity 2 1
+
+	# Restore the previous adjacencies.
+	set_end_x_nextcsid 3 4
+	set_end_x_nextcsid 4 1
+}
+
+__nextcsid_end_x_behavior_test()
+{
+	local nsname="$1"
+	local cmd="$2"
+	local blen="$3"
+	local flen="$4"
+	local layout=""
+
+	if [ "${blen}" != "d" ]; then
+		layout="${layout} lblen ${blen}"
+	fi
+
+	if [ "${flen}" != "d" ]; then
+		layout="${layout} nflen ${flen}"
+	fi
+
+	ip -netns "${nsname}" -6 route \
+		"${cmd}" "${CSID_CNTR_PREFIX}" \
+		table "${CSID_CNTR_RT_TABLE}" \
+		encap seg6local action End.X nh6 :: \
+		flavors next-csid ${layout} \
+		dev "${DUMMY_DEVNAME}" &>/dev/null
+
+	return "$?"
+}
+
+rt_x_nextcsid_end_x_behavior_test()
+{
+	local rt="$1"
+	local blen="$2"
+	local flen="$3"
+	local nsname
+	local ret
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	__nextcsid_end_x_behavior_test "${nsname}" "add" "${blen}" "${flen}"
+	ret="$?"
+	__nextcsid_end_x_behavior_test "${nsname}" "del" "${blen}" "${flen}"
+
+	return "${ret}"
+}
+
+__parse_csid_container_cfg()
+{
+	local cfg="$1"
+	local index="$2"
+	local out
+
+	echo "${cfg}" | cut -d',' -f"${index}"
+}
+
+csid_container_cfg_tests()
+{
+	local valid
+	local blen
+	local flen
+	local cfg
+	local ret
+
+	log_section "C-SID Container config tests (legend: d='kernel default')"
+
+	for cfg in "${CSID_CONTAINER_CFGS[@]}"; do
+		blen="$(__parse_csid_container_cfg "${cfg}" 1)"
+		flen="$(__parse_csid_container_cfg "${cfg}" 2)"
+		valid="$(__parse_csid_container_cfg "${cfg}" 3)"
+
+		rt_x_nextcsid_end_x_behavior_test \
+			"${CSID_CNTR_RT_ID_TEST}" \
+			"${blen}" \
+			"${flen}"
+		ret="$?"
+
+		if [ "${valid}" == "y" ]; then
+			log_test "${ret}" 0 \
+				"Accept valid C-SID container cfg (lblen=${blen}, nflen=${flen})"
+		else
+			log_test "${ret}" 2 \
+				"Reject invalid C-SID container cfg (lblen=${blen}, nflen=${flen})"
+		fi
+	done
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "next-csid"; then
+		echo "SKIP: Missing SRv6 NEXT-C-SID flavor support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+test_dummy_dev_or_ksft_skip()
+{
+        local test_netns
+
+        test_netns="dummy-$(mktemp -u XXXXXXXX)"
+
+        if ! ip netns add "${test_netns}"; then
+                echo "SKIP: Cannot set up netns for testing dummy dev support"
+                exit "${ksft_skip}"
+        fi
+
+        modprobe dummy &>/dev/null || true
+        if ! ip -netns "${test_netns}" link \
+                add "${DUMMY_DEVNAME}" type dummy; then
+                echo "SKIP: dummy dev not supported"
+
+                ip netns del "${test_netns}"
+                exit "${ksft_skip}"
+        fi
+
+        ip netns del "${test_netns}"
+}
+
+test_vrf_or_ksft_skip()
+{
+	modprobe vrf &>/dev/null || true
+	if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+		echo "SKIP: vrf sysctl does not exist"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+test_command_or_ksft_skip cut
+
+test_iproute2_supp_or_ksft_skip
+test_dummy_dev_or_ksft_skip
+test_vrf_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+csid_container_cfg_tests
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh b/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh
new file mode 100755
index 000000000000..6a68c7eff1dc
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh
@@ -0,0 +1,837 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+#
+# This script is designed for testing the SRv6 H.Encaps.Red behavior.
+#
+# Below is depicted the IPv6 network of an operator which offers advanced
+# IPv4/IPv6 VPN services to hosts, enabling them to communicate with each
+# other.
+# In this example, hosts hs-1 and hs-2 are connected through an IPv4/IPv6 VPN
+# service, while hs-3 and hs-4 are connected using an IPv6 only VPN.
+#
+# Routers rt-1,rt-2,rt-3 and rt-4 implement IPv4/IPv6 L3 VPN services
+# leveraging the SRv6 architecture. The key components for such VPNs are:
+#
+#   i) The SRv6 H.Encaps.Red behavior applies SRv6 Policies on traffic received
+#      by connected hosts, initiating the VPN tunnel. Such a behavior is an
+#      optimization of the SRv6 H.Encap aiming to reduce the length of the SID
+#      List carried in the pushed SRH. Specifically, the H.Encaps.Red removes
+#      the first SID contained in the SID List (i.e. SRv6 Policy) by storing it
+#      into the IPv6 Destination Address. When a SRv6 Policy is made of only one
+#      SID, the SRv6 H.Encaps.Red behavior omits the SRH at all and pushes that
+#      SID directly into the IPv6 DA;
+#
+#  ii) The SRv6 End behavior advances the active SID in the SID List carried by
+#      the SRH;
+#
+# iii) The SRv6 End.DT46 behavior is used for removing the SRv6 Policy and,
+#      thus, it terminates the VPN tunnel. Such a behavior is capable of
+#      handling, at the same time, both tunneled IPv4 and IPv6 traffic.
+#
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +--- +---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +--- +---+
+#             |        |                   |        |
+#             |  hs-4  |                   |  hs-3  |
+#             |        |                   |        |
+#             +--------+                   +--------+
+#               cafe::4                      cafe::3
+#              10.0.0.4                     10.0.0.3
+#
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y
+# in the IPv6 operator network.
+#
+# Local SID table
+# ===============
+#
+# Each SRv6 router is configured with a Local SID table in which SIDs are
+# stored. Considering the given SRv6 router rt-x, at least two SIDs are
+# configured in the Local SID table:
+#
+#   Local SID table for SRv6 router rt-x
+#   +----------------------------------------------------------+
+#   |fcff:x::e is associated with the SRv6 End behavior        |
+#   |fcff:x::d46 is associated with the SRv6 End.DT46 behavior |
+#   +----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved by the operator for implementing SRv6 VPN
+# services. Reachability of SIDs is ensured by proper configuration of the IPv6
+# operator's network and SRv6 routers.
+#
+# # SRv6 Policies
+# ===============
+#
+# An SRv6 ingress router applies SRv6 policies to the traffic received from a
+# connected host. SRv6 policy enforcement consists of encapsulating the
+# received traffic into a new IPv6 packet with a given SID List contained in
+# the SRH.
+#
+# IPv4/IPv6 VPN between hs-1 and hs-2
+# -----------------------------------
+#
+# Hosts hs-1 and hs-2 are connected using dedicated IPv4/IPv6 VPNs.
+# Specifically, packets generated from hs-1 and directed towards hs-2 are
+# handled by rt-1 which applies the following SRv6 Policies:
+#
+#   i.a) IPv6 traffic, SID List=fcff:3::e,fcff:4::e,fcff:2::d46
+#  ii.a) IPv4 traffic, SID List=fcff:2::d46
+#
+# Policy (i.a) steers tunneled IPv6 traffic through SRv6 routers
+# rt-3,rt-4,rt-2. Instead, Policy (ii.a) steers tunneled IPv4 traffic through
+# rt-2.
+# The H.Encaps.Red reduces the SID List (i.a) carried in SRH by removing the
+# first SID (fcff:3::e) and pushing it into the IPv6 DA. In case of IPv4
+# traffic, the H.Encaps.Red omits the presence of SRH at all, since the SID
+# List (ii.a) consists of only one SID that can be stored directly in the IPv6
+# DA.
+#
+# On the reverse path (i.e. from hs-2 to hs-1), rt-2 applies the following
+# policies:
+#
+#   i.b) IPv6 traffic, SID List=fcff:1::d46
+#  ii.b) IPv4 traffic, SID List=fcff:4::e,fcff:3::e,fcff:1::d46
+#
+# Policy (i.b) steers tunneled IPv6 traffic through the SRv6 router rt-1.
+# Conversely, Policy (ii.b) steers tunneled IPv4 traffic through SRv6 routers
+# rt-4,rt-3,rt-1.
+# The H.Encaps.Red omits the SRH at all in case of (i.b) by pushing the single
+# SID (fcff::1::d46) inside the IPv6 DA.
+# The H.Encaps.Red reduces the SID List (ii.b) in the SRH by removing the first
+# SID (fcff:4::e) and pushing it into the IPv6 DA.
+#
+# In summary:
+#  hs-1->hs-2 |IPv6 DA=fcff:3::e|SRH SIDs=fcff:4::e,fcff:2::d46|IPv6|...| (i.a)
+#  hs-1->hs-2 |IPv6 DA=fcff:2::d46|IPv4|...|                              (ii.a)
+#
+#  hs-2->hs-1 |IPv6 DA=fcff:1::d46|IPv6|...|                              (i.b)
+#  hs-2->hs-1 |IPv6 DA=fcff:4::e|SRH SIDs=fcff:3::e,fcff:1::d46|IPv4|...| (ii.b)
+#
+#
+# IPv6 VPN between hs-3 and hs-4
+# ------------------------------
+#
+# Hosts hs-3 and hs-4 are connected using a dedicated IPv6 only VPN.
+# Specifically, packets generated from hs-3 and directed towards hs-4 are
+# handled by rt-3 which applies the following SRv6 Policy:
+#
+#  i.c) IPv6 traffic, SID List=fcff:2::e,fcff:4::d46
+#
+# Policy (i.c) steers tunneled IPv6 traffic through SRv6 routers rt-2,rt-4.
+# The H.Encaps.Red reduces the SID List (i.c) carried in SRH by pushing the
+# first SID (fcff:2::e) in the IPv6 DA.
+#
+# On the reverse path (i.e. from hs-4 to hs-3) the router rt-4 applies the
+# following SRv6 Policy:
+#
+#  i.d) IPv6 traffic, SID List=fcff:1::e,fcff:3::d46.
+#
+# Policy (i.d) steers tunneled IPv6 traffic through SRv6 routers rt-1,rt-3.
+# The H.Encaps.Red reduces the SID List (i.d) carried in SRH by pushing the
+# first SID (fcff:1::e) in the IPv6 DA.
+#
+# In summary:
+#  hs-3->hs-4 |IPv6 DA=fcff:2::e|SRH SIDs=fcff:4::d46|IPv6|...| (i.c)
+#  hs-4->hs-3 |IPv6 DA=fcff:1::e|SRH SIDs=fcff:3::d46|IPv6|...| (i.d)
+#
+
+source lib.sh
+
+readonly VRF_TID=100
+readonly VRF_DEVNAME="vrf-${VRF_TID}"
+readonly RT2HS_DEVNAME="veth-t${VRF_TID}"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly END_FUNC=000e
+readonly DT46_FUNC=0d46
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	echo "rt_${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	echo "hs_${hsid}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+	setup_ns "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+	setup_ns "${nsname}"
+}
+
+cleanup()
+{
+	cleanup_all_ns
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		eval neigh_nsname=\${$(get_rtname "${neigh}")}
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+	ip -netns "${nsname}" link set lo up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	# Local End behavior (note that "dev" is dummy and the VRF is chosen
+	# for the sake of simplicity).
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${END_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End dev "${VRF_DEVNAME}"
+
+	# Local End.DT46 behavior
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${DT46_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DT46 vrftable "${VRF_TID}" \
+		dev "${VRF_DEVNAME}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behavior instances are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule \
+		add to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+
+	# set default routes to unreachable for both ipv4 and ipv6
+	ip -netns "${nsname}" -6 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+
+	ip -netns "${nsname}" -4 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router.
+# args:
+#  $1 - destination host (i.e. cafe::x host)
+#  $2 - SRv6 router configured for enforcing the SRv6 Policy
+#  $3 - SRv6 routers configured for steering traffic (End behaviors)
+#  $4 - SRv6 router configured for removing the SRv6 Policy (router connected
+#       to the destination host)
+#  $5 - encap mode (full or red)
+#  $6 - traffic type (IPv6 or IPv4)
+__setup_rt_policy()
+{
+	local dst="$1"
+	local encap_rt="$2"
+	local end_rts="$3"
+	local dec_rt="$4"
+	local mode="$5"
+	local traffic="$6"
+	local nsname
+	local policy=''
+	local n
+
+	eval nsname=\${$(get_rtname "${encap_rt}")}
+
+	for n in ${end_rts}; do
+		policy="${policy}${VPN_LOCATOR_SERVICE}:${n}::${END_FUNC},"
+	done
+
+	policy="${policy}${VPN_LOCATOR_SERVICE}:${dec_rt}::${DT46_FUNC}"
+
+	# add SRv6 policy to incoming traffic sent by connected hosts
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+
+		ip -netns "${nsname}" -6 neigh \
+			add proxy "${IPv6_HS_NETWORK}::${dst}" \
+			dev "${RT2HS_DEVNAME}"
+	else
+		# "dev" must be different from the one where the packet is
+		# received, otherwise the proxy arp does not work.
+		ip -netns "${nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+	fi
+}
+
+# see __setup_rt_policy
+setup_rt_policy_ipv6()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 6
+}
+
+#see __setup_rt_policy
+setup_rt_policy_ipv4()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 4
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	eval hsname=\${$(get_hsname "${hs}")}
+	eval rtname=\${$(get_rtname "${rt}")}
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add veth0 type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr \
+		add "${IPv6_HS_NETWORK}::${hs}/64" dev veth0 nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" dev veth0
+
+	ip -netns "${hsname}" link set veth0 up
+	ip -netns "${hsname}" link set lo up
+
+	# configure the VRF on the router which is directly connected to the
+	# source host.
+	ip -netns "${rtname}" link \
+		add "${VRF_DEVNAME}" type vrf table "${VRF_TID}"
+	ip -netns "${rtname}" link set "${VRF_DEVNAME}" up
+
+	# enslave the veth interface connecting the router with the host to the
+	# VRF in the access router
+	ip -netns "${rtname}" link \
+		set "${RT2HS_DEVNAME}" master "${VRF_DEVNAME}"
+
+	ip -netns "${rtname}" addr \
+		add "${IPv6_HS_NETWORK}::254/64" dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv6.conf."${RT2HS_DEVNAME}".proxy_ndp=1
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".proxy_arp=1
+
+	ip netns exec "${rtname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2 3 4"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+	setup_hs 3 3
+	setup_hs 4 4
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DT46)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# set up SRv6 policies
+
+	# create an IPv6 VPN between hosts hs-1 and hs-2.
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.Encaps.Red)
+	#  - rt-3,rt-4 (SRv6 End behaviors)
+	#  - rt-2 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.Encaps.Red)
+	#  - rt-1 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv6 2 1 "3 4" 2 encap.red
+	setup_rt_policy_ipv6 1 2 "" 1 encap.red
+
+	# create an IPv4 VPN between hosts hs-1 and hs-2
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.Encaps.Red)
+	# - rt-2 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.Encaps.Red)
+	#  - rt-4,rt-3 (SRv6 End behaviors)
+	#  - rt-1 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv4 2 1 "" 2 encap.red
+	setup_rt_policy_ipv4 1 2 "4 3" 1 encap.red
+
+	# create an IPv6 VPN between hosts hs-3 and hs-4
+	# the network path between hs-3 and hs-4 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-3 -> hs-4 (H.Encaps.Red)
+	# - rt-2 (SRv6 End Behavior)
+	# - rt-4 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-4 -> hs-3 (H.Encaps.Red)
+	#  - rt-1 (SRv6 End behavior)
+	#  - rt-3 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv6 4 3 "2" 4 encap.red
+	setup_rt_policy_ipv6 3 4 "1" 3 encap.red
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${rtsrc}")}
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+}
+
+check_and_log_hs_ipv6_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	# in this case, the connectivity test must fail
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 1 "IPv6 Hosts isolation: hs-${hssrc} -X-> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	# in this case, the connectivity test must fail
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 1 "IPv4 Hosts isolation: hs-${hssrc} -X-> hs-${hsdst}"
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv6_isolation "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv4_isolation "${hssrc}" "${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv4/IPv6)"
+
+	check_and_log_hs_connectivity 1 2
+	check_and_log_hs_connectivity 2 1
+
+	log_section "SRv6 VPN connectivity test hosts (h3 <-> h4, IPv6 only)"
+
+	check_and_log_hs_ipv6_connectivity 3 4
+	check_and_log_hs_ipv6_connectivity 4 3
+}
+
+host_vpn_isolation_tests()
+{
+	local l1="1 2"
+	local l2="3 4"
+	local tmp
+	local i
+	local j
+	local k
+
+	log_section "SRv6 VPN isolation test among hosts"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation "${i}" "${j}"
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+	done
+
+	log_section "SRv6 VPN isolation test among hosts (h2 <-> h4, IPv4 only)"
+
+	check_and_log_hs_ipv4_isolation 2 4
+	check_and_log_hs_ipv4_isolation 4 2
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "encap.red"; then
+		echo "SKIP: Missing SRv6 encap.red support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+test_vrf_or_ksft_skip()
+{
+	modprobe vrf &>/dev/null || true
+	if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+		echo "SKIP: vrf sysctl does not exist"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+
+test_iproute2_supp_or_ksft_skip
+test_vrf_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh b/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh
new file mode 100755
index 000000000000..0979b5316fdf
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh
@@ -0,0 +1,780 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+#
+# This script is designed for testing the SRv6 H.L2Encaps.Red behavior.
+#
+# Below is depicted the IPv6 network of an operator which offers L2 VPN
+# services to hosts, enabling them to communicate with each other.
+# In this example, hosts hs-1 and hs-2 are connected through an L2 VPN service.
+# Currently, the SRv6 subsystem in Linux allows hosts hs-1 and hs-2 to exchange
+# full L2 frames as long as they carry IPv4/IPv6.
+#
+# Routers rt-1,rt-2,rt-3 and rt-4 implement L2 VPN services
+# leveraging the SRv6 architecture. The key components for such VPNs are:
+#
+#   i) The SRv6 H.L2Encaps.Red behavior applies SRv6 Policies on traffic
+#      received by connected hosts, initiating the VPN tunnel. Such a behavior
+#      is an optimization of the SRv6 H.L2Encap aiming to reduce the
+#      length of the SID List carried in the pushed SRH. Specifically, the
+#      H.L2Encaps.Red removes the first SID contained in the SID List (i.e. SRv6
+#      Policy) by storing it into the IPv6 Destination Address. When a SRv6
+#      Policy is made of only one SID, the SRv6 H.L2Encaps.Red behavior omits
+#      the SRH at all and pushes that SID directly into the IPv6 DA;
+#
+#  ii) The SRv6 End behavior advances the active SID in the SID List
+#      carried by the SRH;
+#
+# iii) The SRv6 End.DX2 behavior is used for removing the SRv6 Policy
+#      and, thus, it terminates the VPN tunnel. The decapsulated L2 frame is
+#      sent over the interface connected with the destination host.
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +--- +---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y
+# in the IPv6 operator network.
+#
+# Local SID table
+# ===============
+#
+# Each SRv6 router is configured with a Local SID table in which SIDs are
+# stored. Considering the given SRv6 router rt-x, at least two SIDs are
+# configured in the Local SID table:
+#
+#   Local SID table for SRv6 router rt-x
+#   +----------------------------------------------------------+
+#   |fcff:x::e is associated with the SRv6 End behavior        |
+#   |fcff:x::d2 is associated with the SRv6 End.DX2 behavior   |
+#   +----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved by the operator for implementing SRv6 VPN
+# services. Reachability of SIDs is ensured by proper configuration of the IPv6
+# operator's network and SRv6 routers.
+#
+# SRv6 Policies
+# =============
+#
+# An SRv6 ingress router applies SRv6 policies to the traffic received from a
+# connected host. SRv6 policy enforcement consists of encapsulating the
+# received traffic into a new IPv6 packet with a given SID List contained in
+# the SRH.
+#
+# L2 VPN between hs-1 and hs-2
+# ----------------------------
+#
+# Hosts hs-1 and hs-2 are connected using a dedicated L2 VPN.
+# Specifically, packets generated from hs-1 and directed towards hs-2 are
+# handled by rt-1 which applies the following SRv6 Policies:
+#
+#   i.a) L2 traffic, SID List=fcff:2::d2
+#
+# Policy (i.a) steers tunneled L2 traffic through SRv6 router rt-2.
+# The H.L2Encaps.Red omits the presence of SRH at all, since the SID List
+# consists of only one SID (fcff:2::d2) that can be stored directly in the IPv6
+# DA.
+#
+# On the reverse path (i.e. from hs-2 to hs-1), rt-2 applies the following
+# policies:
+#
+#   i.b) L2 traffic, SID List=fcff:4::e,fcff:3::e,fcff:1::d2
+#
+# Policy (i.b) steers tunneled L2 traffic through the SRv6 routers
+# rt-4,rt-3,rt2. The H.L2Encaps.Red reduces the SID List in the SRH by removing
+# the first SID (fcff:4::e) and pushing it into the IPv6 DA.
+#
+# In summary:
+#  hs-1->hs-2 |IPv6 DA=fcff:2::d2|eth|...|                              (i.a)
+#  hs-2->hs-1 |IPv6 DA=fcff:4::e|SRH SIDs=fcff:3::e,fcff:1::d2|eth|...| (i.b)
+#
+
+source lib.sh
+
+readonly DUMMY_DEVNAME="dum0"
+readonly RT2HS_DEVNAME="veth-hs"
+readonly HS_VETH_NAME="veth0"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly MAC_PREFIX=00:00:00:c0:01
+readonly END_FUNC=000e
+readonly DX2_FUNC=00d2
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	echo "rt_${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	echo "hs_${hsid}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+	setup_ns "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+	setup_ns "${nsname}"
+}
+
+cleanup()
+{
+	cleanup_all_ns
+
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		eval neigh_nsname=\${$(get_rtname "${neigh}")}
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+	ip -netns "${nsname}" link add "${DUMMY_DEVNAME}" type dummy
+
+	ip -netns "${nsname}" link set "${DUMMY_DEVNAME}" up
+	ip -netns "${nsname}" link set lo up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	# Local End behavior (note that dev "${DUMMY_DEVNAME}" is a dummy
+	# interface)
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${END_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End dev "${DUMMY_DEVNAME}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behaviors instances are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule add \
+		to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router.
+# args:
+#  $1 - destination host (i.e. cafe::x host)
+#  $2 - SRv6 router configured for enforcing the SRv6 Policy
+#  $3 - SRv6 routers configured for steering traffic (End behaviors)
+#  $4 - SRv6 router configured for removing the SRv6 Policy (router connected
+#       to the destination host)
+#  $5 - encap mode (full or red)
+#  $6 - traffic type (IPv6 or IPv4)
+__setup_rt_policy()
+{
+	local dst="$1"
+	local encap_rt="$2"
+	local end_rts="$3"
+	local dec_rt="$4"
+	local mode="$5"
+	local traffic="$6"
+	local nsname
+	local policy=''
+	local n
+
+	eval nsname=\${$(get_rtname "${encap_rt}")}
+
+	for n in ${end_rts}; do
+		policy="${policy}${VPN_LOCATOR_SERVICE}:${n}::${END_FUNC},"
+	done
+
+	policy="${policy}${VPN_LOCATOR_SERVICE}:${dec_rt}::${DX2_FUNC}"
+
+	# add SRv6 policy to incoming traffic sent by connected hosts
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev dum0
+	else
+		ip -netns "${nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev dum0
+	fi
+}
+
+# see __setup_rt_policy
+setup_rt_policy_ipv6()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 6
+}
+
+#see __setup_rt_policy
+setup_rt_policy_ipv4()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 4
+}
+
+setup_decap()
+{
+	local rt="$1"
+	local nsname
+
+	eval nsname=\${$(get_rtname "${rt}")}
+
+	# Local End.DX2 behavior
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${DX2_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DX2 oif "${RT2HS_DEVNAME}" \
+		dev "${RT2HS_DEVNAME}"
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	eval hsname=\${$(get_hsname "${hs}")}
+	eval rtname=\${$(get_rtname "${rt}")}
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add "${HS_VETH_NAME}" type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr add "${IPv6_HS_NETWORK}::${hs}/64" \
+		dev "${HS_VETH_NAME}" nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" \
+		dev "${HS_VETH_NAME}"
+
+	ip -netns "${hsname}" link set "${HS_VETH_NAME}" up
+	ip -netns "${hsname}" link set lo up
+
+	ip -netns "${rtname}" addr add "${IPv6_HS_NETWORK}::254/64" \
+		dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+}
+
+# set an auto-generated mac address
+# args:
+#  $1 - name of the node (e.g.: hs-1, rt-3, etc)
+#  $2 - id of the node (e.g.: 1 for hs-1, 3 for rt-3, etc)
+#  $3 - host part of the IPv6 network address
+#  $4 - name of the network interface to which the generated mac address must
+#       be set.
+set_mac_address()
+{
+	local nodename="$1"
+	local nodeid="$2"
+	local host="$3"
+	local ifname="$4"
+	local nsname
+
+	eval nsname=\${${nodename}}
+
+	ip -netns "${nsname}" link set dev "${ifname}" down
+
+	ip -netns "${nsname}" link set address "${MAC_PREFIX}:${nodeid}" \
+		dev "${ifname}"
+
+	# the IPv6 address must be set once again after the MAC address has
+	# been changed.
+	ip -netns "${nsname}" addr add "${IPv6_HS_NETWORK}::${host}/64" \
+		dev "${ifname}" nodad
+
+	ip -netns "${nsname}" link set dev "${ifname}" up
+}
+
+set_host_l2peer()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local ipprefix="$3"
+	local proto="$4"
+	local hssrc_name
+	local ipaddr
+
+	eval hssrc_name=\${$(get_hsname "${hssrc}")}
+
+	if [ "${proto}" -eq 6 ]; then
+		ipaddr="${ipprefix}::${hsdst}"
+	else
+		ipaddr="${ipprefix}.${hsdst}"
+	fi
+
+	ip -netns "${hssrc_name}" route add "${ipaddr}" dev "${HS_VETH_NAME}"
+
+	ip -netns "${hssrc_name}" neigh \
+		add "${ipaddr}" lladdr "${MAC_PREFIX}:${hsdst}" \
+		dev "${HS_VETH_NAME}"
+}
+
+# setup an SRv6 L2 VPN between host hs-x and hs-y (currently, the SRv6
+# subsystem only supports L2 frames whose layer-3 is IPv4/IPv6).
+# args:
+#  $1 - source host
+#  $2 - SRv6 routers configured for steering tunneled traffic
+#  $3 - destination host
+setup_l2vpn()
+{
+	local hssrc="$1"
+	local end_rts="$2"
+	local hsdst="$3"
+	local rtsrc="${hssrc}"
+	local rtdst="${hsdst}"
+
+	# set fixed mac for source node and the neigh MAC address
+	set_mac_address "hs_${hssrc}" "${hssrc}" "${hssrc}" "${HS_VETH_NAME}"
+	set_host_l2peer "${hssrc}" "${hsdst}" "${IPv6_HS_NETWORK}" 6
+	set_host_l2peer "${hssrc}" "${hsdst}" "${IPv4_HS_NETWORK}" 4
+
+	# we have to set the mac address of the veth-host (on ingress router)
+	# to the mac address of the remote peer (L2 VPN destination host).
+	# Otherwise, traffic coming from the source host is dropped at the
+	# ingress router.
+	set_mac_address "rt_${rtsrc}" "${hsdst}" 254 "${RT2HS_DEVNAME}"
+
+	# set the SRv6 Policies at the ingress router
+	setup_rt_policy_ipv6 "${hsdst}" "${rtsrc}" "${end_rts}" "${rtdst}" \
+		l2encap.red 6
+	setup_rt_policy_ipv4 "${hsdst}" "${rtsrc}" "${end_rts}" "${rtdst}" \
+		l2encap.red 4
+
+	# set the decap behavior
+	setup_decap "${rtsrc}"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DX2)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# create a L2 VPN between hs-1 and hs-2.
+	# NB: currently, H.L2Encap* enables tunneling of L2 frames whose
+	# layer-3 is IPv4/IPv6.
+	#
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.L2Encaps.Red)
+	# - rt-2 (SRv6 End.DX2 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.L2Encaps.Red)
+	#  - rt-4,rt-3 (SRv6 End behaviors)
+	#  - rt-1 (SRv6 End.DX2 behavior)
+	setup_l2vpn 1 "" 2
+	setup_l2vpn 2 "4 3" 1
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	eval rtsrc_nsname=\${$(get_rtname "${rtsrc}")}
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	eval hssrc_nsname=\${$(get_hsname "${hssrc}")}
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 L2 VPN connectivity test hosts (h1 <-> h2)"
+
+	check_and_log_hs_connectivity 1 2
+	check_and_log_hs_connectivity 2 1
+}
+
+test_dummy_dev_or_ksft_skip()
+{
+	local test_netns
+
+	test_netns="dummy-$(mktemp -u XXXXXXXX)"
+
+	if ! ip netns add "${test_netns}"; then
+		echo "SKIP: Cannot set up netns for testing dummy dev support"
+		exit "${ksft_skip}"
+	fi
+
+	modprobe dummy &>/dev/null || true
+	if ! ip -netns "${test_netns}" link \
+		add "${DUMMY_DEVNAME}" type dummy; then
+		echo "SKIP: dummy dev not supported"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	ip netns del "${test_netns}"
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "l2encap.red"; then
+		echo "SKIP: Missing SRv6 l2encap.red support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+
+test_iproute2_supp_or_ksft_skip
+test_dummy_dev_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/stress_reuseport_listen.c b/tools/testing/selftests/net/stress_reuseport_listen.c
new file mode 100644
index 000000000000..ef800bb35a8e
--- /dev/null
+++ b/tools/testing/selftests/net/stress_reuseport_listen.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+/* Test listening on the same port 443 with multiple VIPS.
+ * Each VIP:443 will have multiple sk listening on by using
+ * SO_REUSEPORT.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <error.h>
+#include <errno.h>
+#include <time.h>
+#include <arpa/inet.h>
+
+#define IP6_LADDR_START "2401:dead::1"
+#define IP6_LPORT 443
+#define NSEC_PER_SEC 1000000000L
+#define NSEC_PER_USEC 1000L
+
+static unsigned int nr_socks_per_vip;
+static unsigned int nr_vips;
+
+static int *bind_reuseport_sock6(void)
+{
+	int *lfds, *cur_fd, err, optvalue = 1;
+	struct sockaddr_in6 sa6 = {};
+	unsigned int i, j;
+
+	sa6.sin6_family = AF_INET6;
+	sa6.sin6_port = htons(IP6_LPORT);
+	err = inet_pton(AF_INET6, IP6_LADDR_START, &sa6.sin6_addr);
+	if (err != 1)
+		error(1, err, "inet_pton(%s)", IP6_LADDR_START);
+
+	lfds = malloc(nr_vips * nr_socks_per_vip * sizeof(lfds[0]));
+	if (!lfds)
+		error(1, errno, "cannot alloc array of lfds");
+
+	cur_fd = lfds;
+	for (i = 0; i < nr_vips; i++) {
+		for (j = 0; j < nr_socks_per_vip; j++) {
+			*cur_fd = socket(AF_INET6, SOCK_STREAM, 0);
+			if (*cur_fd == -1)
+				error(1, errno,
+				      "lfds[%u,%u] = socket(AF_INET6)", i, j);
+
+			err = setsockopt(*cur_fd, SOL_SOCKET, SO_REUSEPORT,
+					 &optvalue, sizeof(optvalue));
+			if (err)
+				error(1, errno,
+				      "setsockopt(lfds[%u,%u], SO_REUSEPORT)",
+				      i, j);
+
+			err = bind(*cur_fd, (struct sockaddr *)&sa6,
+				   sizeof(sa6));
+			if (err)
+				error(1, errno, "bind(lfds[%u,%u])", i, j);
+			cur_fd++;
+		}
+		sa6.sin6_addr.s6_addr32[3]++;
+	}
+
+	return lfds;
+}
+
+int main(int argc, const char *argv[])
+{
+	struct timespec start_ts, end_ts;
+	unsigned long start_ns, end_ns;
+	unsigned int nr_lsocks;
+	int *lfds, i, err;
+
+	if (argc != 3 || atoi(argv[1]) <= 0 || atoi(argv[2]) <= 0)
+		error(1, 0, "Usage: %s <nr_vips> <nr_socks_per_vip>\n",
+		      argv[0]);
+
+	nr_vips = atoi(argv[1]);
+	nr_socks_per_vip = atoi(argv[2]);
+	nr_lsocks = nr_vips * nr_socks_per_vip;
+	lfds = bind_reuseport_sock6();
+
+	clock_gettime(CLOCK_MONOTONIC, &start_ts);
+	for (i = 0; i < nr_lsocks; i++) {
+		err = listen(lfds[i], 0);
+		if (err)
+			error(1, errno, "listen(lfds[%d])", i);
+	}
+	clock_gettime(CLOCK_MONOTONIC, &end_ts);
+
+	start_ns = start_ts.tv_sec * NSEC_PER_SEC + start_ts.tv_nsec;
+	end_ns = end_ts.tv_sec * NSEC_PER_SEC + end_ts.tv_nsec;
+
+	printf("listen %d socks took %lu.%lu\n", nr_lsocks,
+	       (end_ns - start_ns) / NSEC_PER_SEC,
+	       (end_ns - start_ns) / NSEC_PER_USEC);
+
+	for (i = 0; i < nr_lsocks; i++)
+		close(lfds[i]);
+
+	free(lfds);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/stress_reuseport_listen.sh b/tools/testing/selftests/net/stress_reuseport_listen.sh
new file mode 100755
index 000000000000..94d5d1a1c90f
--- /dev/null
+++ b/tools/testing/selftests/net/stress_reuseport_listen.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Meta Platforms, Inc. and affiliates.
+
+source lib.sh
+NR_FILES=24100
+SAVED_NR_FILES=$(ulimit -n)
+
+setup() {
+	setup_ns NS
+	ip netns exec $NS sysctl -q -w net.ipv6.ip_nonlocal_bind=1
+	ulimit -n $NR_FILES
+}
+
+cleanup() {
+	cleanup_ns $NS
+	ulimit -n $SAVED_NR_FILES
+}
+
+trap cleanup EXIT
+setup
+# 300 different vips listen on port 443
+# Each vip:443 sockaddr has 80 LISTEN sock by using SO_REUSEPORT
+# Total 24000 listening socks
+ip netns exec $NS ./stress_reuseport_listen 300 80
diff --git a/tools/testing/selftests/net/tap.c b/tools/testing/selftests/net/tap.c
new file mode 100644
index 000000000000..9ec1c9b50e77
--- /dev/null
+++ b/tools/testing/selftests/net/tap.c
@@ -0,0 +1,434 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <net/if.h>
+#include <linux/if_tun.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <linux/virtio_net.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include "kselftest_harness.h"
+
+static const char param_dev_tap_name[] = "xmacvtap0";
+static const char param_dev_dummy_name[] = "xdummy0";
+static unsigned char param_hwaddr_src[] = { 0x00, 0xfe, 0x98, 0x14, 0x22, 0x42 };
+static unsigned char param_hwaddr_dest[] = {
+	0x00, 0xfe, 0x98, 0x94, 0xd2, 0x43
+};
+
+#define MAX_RTNL_PAYLOAD (2048)
+#define PKT_DATA 0xCB
+#define TEST_PACKET_SZ (sizeof(struct virtio_net_hdr) + ETH_HLEN + ETH_MAX_MTU)
+
+static struct rtattr *rtattr_add(struct nlmsghdr *nh, unsigned short type,
+				 unsigned short len)
+{
+	struct rtattr *rta =
+		(struct rtattr *)((uint8_t *)nh + RTA_ALIGN(nh->nlmsg_len));
+	rta->rta_type = type;
+	rta->rta_len = RTA_LENGTH(len);
+	nh->nlmsg_len = RTA_ALIGN(nh->nlmsg_len) + RTA_ALIGN(rta->rta_len);
+	return rta;
+}
+
+static struct rtattr *rtattr_begin(struct nlmsghdr *nh, unsigned short type)
+{
+	return rtattr_add(nh, type, 0);
+}
+
+static void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)
+{
+	uint8_t *end = (uint8_t *)nh + nh->nlmsg_len;
+
+	attr->rta_len = end - (uint8_t *)attr;
+}
+
+static struct rtattr *rtattr_add_str(struct nlmsghdr *nh, unsigned short type,
+				     const char *s)
+{
+	struct rtattr *rta = rtattr_add(nh, type, strlen(s));
+
+	memcpy(RTA_DATA(rta), s, strlen(s));
+	return rta;
+}
+
+static struct rtattr *rtattr_add_strsz(struct nlmsghdr *nh, unsigned short type,
+				       const char *s)
+{
+	struct rtattr *rta = rtattr_add(nh, type, strlen(s) + 1);
+
+	strcpy(RTA_DATA(rta), s);
+	return rta;
+}
+
+static struct rtattr *rtattr_add_any(struct nlmsghdr *nh, unsigned short type,
+				     const void *arr, size_t len)
+{
+	struct rtattr *rta = rtattr_add(nh, type, len);
+
+	memcpy(RTA_DATA(rta), arr, len);
+	return rta;
+}
+
+static int dev_create(const char *dev, const char *link_type,
+		      int (*fill_rtattr)(struct nlmsghdr *nh),
+		      int (*fill_info_data)(struct nlmsghdr *nh))
+{
+	struct {
+		struct nlmsghdr nh;
+		struct ifinfomsg info;
+		unsigned char data[MAX_RTNL_PAYLOAD];
+	} req;
+	struct rtattr *link_info, *info_data;
+	int ret, rtnl;
+
+	rtnl = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
+	if (rtnl < 0) {
+		fprintf(stderr, "%s: socket %s\n", __func__, strerror(errno));
+		return 1;
+	}
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_flags = NLM_F_REQUEST | NLM_F_CREATE;
+	req.nh.nlmsg_type = RTM_NEWLINK;
+
+	req.info.ifi_family = AF_UNSPEC;
+	req.info.ifi_type = 1;
+	req.info.ifi_index = 0;
+	req.info.ifi_flags = IFF_BROADCAST | IFF_UP;
+	req.info.ifi_change = 0xffffffff;
+
+	rtattr_add_str(&req.nh, IFLA_IFNAME, dev);
+
+	if (fill_rtattr) {
+		ret = fill_rtattr(&req.nh);
+		if (ret)
+			return ret;
+	}
+
+	link_info = rtattr_begin(&req.nh, IFLA_LINKINFO);
+
+	rtattr_add_strsz(&req.nh, IFLA_INFO_KIND, link_type);
+
+	if (fill_info_data) {
+		info_data = rtattr_begin(&req.nh, IFLA_INFO_DATA);
+		ret = fill_info_data(&req.nh);
+		if (ret)
+			return ret;
+		rtattr_end(&req.nh, info_data);
+	}
+
+	rtattr_end(&req.nh, link_info);
+
+	ret = send(rtnl, &req, req.nh.nlmsg_len, 0);
+	if (ret < 0)
+		fprintf(stderr, "%s: send %s\n", __func__, strerror(errno));
+	ret = (unsigned int)ret != req.nh.nlmsg_len;
+
+	close(rtnl);
+	return ret;
+}
+
+static int dev_delete(const char *dev)
+{
+	struct {
+		struct nlmsghdr nh;
+		struct ifinfomsg info;
+		unsigned char data[MAX_RTNL_PAYLOAD];
+	} req;
+	int ret, rtnl;
+
+	rtnl = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
+	if (rtnl < 0) {
+		fprintf(stderr, "%s: socket %s\n", __func__, strerror(errno));
+		return 1;
+	}
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len = NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_flags = NLM_F_REQUEST;
+	req.nh.nlmsg_type = RTM_DELLINK;
+
+	req.info.ifi_family = AF_UNSPEC;
+
+	rtattr_add_str(&req.nh, IFLA_IFNAME, dev);
+
+	ret = send(rtnl, &req, req.nh.nlmsg_len, 0);
+	if (ret < 0)
+		fprintf(stderr, "%s: send %s\n", __func__, strerror(errno));
+
+	ret = (unsigned int)ret != req.nh.nlmsg_len;
+
+	close(rtnl);
+	return ret;
+}
+
+static int macvtap_fill_rtattr(struct nlmsghdr *nh)
+{
+	int ifindex;
+
+	ifindex = if_nametoindex(param_dev_dummy_name);
+	if (ifindex == 0) {
+		fprintf(stderr, "%s: ifindex  %s\n", __func__, strerror(errno));
+		return -errno;
+	}
+
+	rtattr_add_any(nh, IFLA_LINK, &ifindex, sizeof(ifindex));
+	rtattr_add_any(nh, IFLA_ADDRESS, param_hwaddr_src, ETH_ALEN);
+
+	return 0;
+}
+
+static int opentap(const char *devname)
+{
+	int ifindex;
+	char buf[256];
+	int fd;
+	struct ifreq ifr;
+
+	ifindex = if_nametoindex(devname);
+	if (ifindex == 0) {
+		fprintf(stderr, "%s: ifindex %s\n", __func__, strerror(errno));
+		return -errno;
+	}
+
+	sprintf(buf, "/dev/tap%d", ifindex);
+	fd = open(buf, O_RDWR | O_NONBLOCK);
+	if (fd < 0) {
+		fprintf(stderr, "%s: open %s\n", __func__, strerror(errno));
+		return -errno;
+	}
+
+	memset(&ifr, 0, sizeof(ifr));
+	strcpy(ifr.ifr_name, devname);
+	ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR | IFF_MULTI_QUEUE;
+	if (ioctl(fd, TUNSETIFF, &ifr, sizeof(ifr)) < 0)
+		return -errno;
+	return fd;
+}
+
+size_t build_eth(uint8_t *buf, uint16_t proto)
+{
+	struct ethhdr *eth = (struct ethhdr *)buf;
+
+	eth->h_proto = htons(proto);
+	memcpy(eth->h_source, param_hwaddr_src, ETH_ALEN);
+	memcpy(eth->h_dest, param_hwaddr_dest, ETH_ALEN);
+
+	return ETH_HLEN;
+}
+
+static uint32_t add_csum(const uint8_t *buf, int len)
+{
+	uint32_t sum = 0;
+	uint16_t *sbuf = (uint16_t *)buf;
+
+	while (len > 1) {
+		sum += *sbuf++;
+		len -= 2;
+	}
+
+	if (len)
+		sum += *(uint8_t *)sbuf;
+
+	return sum;
+}
+
+static uint16_t finish_ip_csum(uint32_t sum)
+{
+	uint16_t lo = sum & 0xffff;
+	uint16_t hi = sum >> 16;
+
+	return ~(lo + hi);
+
+}
+
+static uint16_t build_ip_csum(const uint8_t *buf, int len,
+			      uint32_t sum)
+{
+	sum += add_csum(buf, len);
+	return finish_ip_csum(sum);
+}
+
+static int build_ipv4_header(uint8_t *buf, int payload_len)
+{
+	struct iphdr *iph = (struct iphdr *)buf;
+
+	iph->ihl = 5;
+	iph->version = 4;
+	iph->ttl = 8;
+	iph->tot_len =
+		htons(sizeof(*iph) + sizeof(struct udphdr) + payload_len);
+	iph->id = htons(1337);
+	iph->protocol = IPPROTO_UDP;
+	iph->saddr = htonl((172 << 24) | (17 << 16) | 2);
+	iph->daddr = htonl((172 << 24) | (17 << 16) | 1);
+	iph->check = build_ip_csum(buf, iph->ihl << 2, 0);
+
+	return iph->ihl << 2;
+}
+
+static int build_udp_packet(uint8_t *buf, int payload_len, bool csum_off)
+{
+	const int ip4alen = sizeof(uint32_t);
+	struct udphdr *udph = (struct udphdr *)buf;
+	int len = sizeof(*udph) + payload_len;
+	uint32_t sum = 0;
+
+	udph->source = htons(22);
+	udph->dest = htons(58822);
+	udph->len = htons(len);
+
+	memset(buf + sizeof(struct udphdr), PKT_DATA, payload_len);
+
+	sum = add_csum(buf - 2 * ip4alen, 2 * ip4alen);
+	sum += htons(IPPROTO_UDP) + udph->len;
+
+	if (!csum_off)
+		sum += add_csum(buf, len);
+
+	udph->check = finish_ip_csum(sum);
+
+	return sizeof(*udph) + payload_len;
+}
+
+size_t build_test_packet_valid_udp_gso(uint8_t *buf, size_t payload_len)
+{
+	uint8_t *cur = buf;
+	struct virtio_net_hdr *vh = (struct virtio_net_hdr *)buf;
+
+	vh->hdr_len = ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr);
+	vh->flags = VIRTIO_NET_HDR_F_NEEDS_CSUM;
+	vh->csum_start = ETH_HLEN + sizeof(struct iphdr);
+	vh->csum_offset = __builtin_offsetof(struct udphdr, check);
+	vh->gso_type = VIRTIO_NET_HDR_GSO_UDP;
+	vh->gso_size = ETH_DATA_LEN - sizeof(struct iphdr);
+	cur += sizeof(*vh);
+
+	cur += build_eth(cur, ETH_P_IP);
+	cur += build_ipv4_header(cur, payload_len);
+	cur += build_udp_packet(cur, payload_len, true);
+
+	return cur - buf;
+}
+
+size_t build_test_packet_valid_udp_csum(uint8_t *buf, size_t payload_len)
+{
+	uint8_t *cur = buf;
+	struct virtio_net_hdr *vh = (struct virtio_net_hdr *)buf;
+
+	vh->flags = VIRTIO_NET_HDR_F_DATA_VALID;
+	vh->gso_type = VIRTIO_NET_HDR_GSO_NONE;
+	cur += sizeof(*vh);
+
+	cur += build_eth(cur, ETH_P_IP);
+	cur += build_ipv4_header(cur, payload_len);
+	cur += build_udp_packet(cur, payload_len, false);
+
+	return cur - buf;
+}
+
+size_t build_test_packet_crash_tap_invalid_eth_proto(uint8_t *buf,
+						     size_t payload_len)
+{
+	uint8_t *cur = buf;
+	struct virtio_net_hdr *vh = (struct virtio_net_hdr *)buf;
+
+	vh->hdr_len = ETH_HLEN + sizeof(struct iphdr) + sizeof(struct udphdr);
+	vh->flags = 0;
+	vh->gso_type = VIRTIO_NET_HDR_GSO_UDP;
+	vh->gso_size = ETH_DATA_LEN - sizeof(struct iphdr);
+	cur += sizeof(*vh);
+
+	cur += build_eth(cur, 0);
+	cur += sizeof(struct iphdr) + sizeof(struct udphdr);
+	cur += build_ipv4_header(cur, payload_len);
+	cur += build_udp_packet(cur, payload_len, true);
+	cur += payload_len;
+
+	return cur - buf;
+}
+
+FIXTURE(tap)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(tap)
+{
+	int ret;
+
+	ret = dev_create(param_dev_dummy_name, "dummy", NULL, NULL);
+	EXPECT_EQ(ret, 0);
+
+	ret = dev_create(param_dev_tap_name, "macvtap", macvtap_fill_rtattr,
+			 NULL);
+	EXPECT_EQ(ret, 0);
+
+	self->fd = opentap(param_dev_tap_name);
+	ASSERT_GE(self->fd, 0);
+}
+
+FIXTURE_TEARDOWN(tap)
+{
+	int ret;
+
+	if (self->fd != -1)
+		close(self->fd);
+
+	ret = dev_delete(param_dev_tap_name);
+	EXPECT_EQ(ret, 0);
+
+	ret = dev_delete(param_dev_dummy_name);
+	EXPECT_EQ(ret, 0);
+}
+
+TEST_F(tap, test_packet_valid_udp_gso)
+{
+	uint8_t pkt[TEST_PACKET_SZ];
+	size_t off;
+	int ret;
+
+	memset(pkt, 0, sizeof(pkt));
+	off = build_test_packet_valid_udp_gso(pkt, 1021);
+	ret = write(self->fd, pkt, off);
+	ASSERT_EQ(ret, off);
+}
+
+TEST_F(tap, test_packet_valid_udp_csum)
+{
+	uint8_t pkt[TEST_PACKET_SZ];
+	size_t off;
+	int ret;
+
+	memset(pkt, 0, sizeof(pkt));
+	off = build_test_packet_valid_udp_csum(pkt, 1024);
+	ret = write(self->fd, pkt, off);
+	ASSERT_EQ(ret, off);
+}
+
+TEST_F(tap, test_packet_crash_tap_invalid_eth_proto)
+{
+	uint8_t pkt[TEST_PACKET_SZ];
+	size_t off;
+	int ret;
+
+	memset(pkt, 0, sizeof(pkt));
+	off = build_test_packet_crash_tap_invalid_eth_proto(pkt, 1024);
+	ret = write(self->fd, pkt, off);
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EINVAL);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/tcp_ao/.gitignore b/tools/testing/selftests/net/tcp_ao/.gitignore
new file mode 100644
index 000000000000..e8bb81b715b7
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/.gitignore
@@ -0,0 +1,2 @@
+*_ipv4
+*_ipv6
diff --git a/tools/testing/selftests/net/tcp_ao/Makefile b/tools/testing/selftests/net/tcp_ao/Makefile
new file mode 100644
index 000000000000..5b0205c70c39
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/Makefile
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_BOTH_AF := bench-lookups
+TEST_BOTH_AF += connect
+TEST_BOTH_AF += connect-deny
+TEST_BOTH_AF += icmps-accept icmps-discard
+TEST_BOTH_AF += key-management
+TEST_BOTH_AF += restore
+TEST_BOTH_AF += rst
+TEST_BOTH_AF += self-connect
+TEST_BOTH_AF += seq-ext
+TEST_BOTH_AF += setsockopt-closed
+TEST_BOTH_AF += unsigned-md5
+
+TEST_IPV4_PROGS := $(TEST_BOTH_AF:%=%_ipv4)
+TEST_IPV6_PROGS := $(TEST_BOTH_AF:%=%_ipv6)
+
+TEST_GEN_PROGS := $(TEST_IPV4_PROGS) $(TEST_IPV6_PROGS)
+
+top_srcdir	  := ../../../../..
+include ../../lib.mk
+
+HOSTAR ?= ar
+
+LIBDIR	:= $(OUTPUT)/lib
+LIB	:= $(LIBDIR)/libaotst.a
+LDLIBS	+= $(LIB) -pthread
+LIBDEPS	:= lib/aolib.h Makefile
+
+CFLAGS	+= -Wall -O2 -g -fno-strict-aliasing
+CFLAGS	+= $(KHDR_INCLUDES)
+CFLAGS	+= -iquote ./lib/ -I ../../../../include/
+
+# Library
+LIBSRC	:= ftrace.c ftrace-tcp.c kconfig.c netlink.c
+LIBSRC	+= proc.c repair.c setup.c sock.c utils.c
+LIBOBJ	:= $(LIBSRC:%.c=$(LIBDIR)/%.o)
+EXTRA_CLEAN += $(LIBOBJ) $(LIB)
+
+$(LIB): $(LIBOBJ)
+	$(HOSTAR) rcs $@ $^
+
+$(LIBDIR)/%.o: ./lib/%.c $(LIBDEPS)
+	mkdir -p $(LIBDIR)
+	$(CC) $< $(CFLAGS) $(CPPFLAGS) -o $@ -c
+
+$(TEST_GEN_PROGS): $(LIB)
+
+$(OUTPUT)/%_ipv4: %.c
+	$(LINK.c) $^ $(LDLIBS) -o $@
+
+$(OUTPUT)/%_ipv6: %.c
+	$(LINK.c) -DIPV6_TEST $^ $(LDLIBS) -o $@
+
+$(OUTPUT)/icmps-accept_ipv4: CFLAGS+= -DTEST_ICMPS_ACCEPT
+$(OUTPUT)/icmps-accept_ipv6: CFLAGS+= -DTEST_ICMPS_ACCEPT
+$(OUTPUT)/bench-lookups_ipv4: LDLIBS+= -lm
+$(OUTPUT)/bench-lookups_ipv6: LDLIBS+= -lm
diff --git a/tools/testing/selftests/net/tcp_ao/bench-lookups.c b/tools/testing/selftests/net/tcp_ao/bench-lookups.c
new file mode 100644
index 000000000000..6736484996a3
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/bench-lookups.c
@@ -0,0 +1,360 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <arpa/inet.h>
+#include <inttypes.h>
+#include <math.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+#include "../../../../include/linux/bits.h"
+#include "../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+#define BENCH_NR_ITERS	100 /* number of times to run gathering statistics */
+
+static void gen_test_ips(union tcp_addr *ips, size_t ips_nr, bool use_rand)
+{
+	union tcp_addr net = {};
+	size_t i, j;
+
+	if (inet_pton(TEST_FAMILY, TEST_NETWORK, &net) != 1)
+		test_error("Can't convert ip address %s", TEST_NETWORK);
+
+	if (!use_rand) {
+		for (i = 0; i < ips_nr; i++)
+			ips[i] = gen_tcp_addr(net, 2 * i + 1);
+		return;
+	}
+	for (i = 0; i < ips_nr; i++) {
+		size_t r = (size_t)random() | 0x1;
+
+		ips[i] = gen_tcp_addr(net, r);
+
+		for (j = i - 1; j > 0 && i > 0; j--) {
+			if (!memcmp(&ips[i], &ips[j], sizeof(union tcp_addr))) {
+				i--; /* collision */
+				break;
+			}
+		}
+	}
+}
+
+static void test_add_routes(union tcp_addr *ips, size_t ips_nr)
+{
+	size_t i;
+
+	for (i = 0; i < ips_nr; i++) {
+		union tcp_addr *p = (union tcp_addr *)&ips[i];
+		int err;
+
+		err = ip_route_add(veth_name, TEST_FAMILY, this_ip_addr, *p);
+		if (err && err != -EEXIST)
+			test_error("Failed to add route");
+	}
+}
+
+static void server_apply_keys(int lsk, union tcp_addr *ips, size_t ips_nr)
+{
+	size_t i;
+
+	for (i = 0; i < ips_nr; i++) {
+		union tcp_addr *p = (union tcp_addr *)&ips[i];
+
+		if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, *p, -1, 100, 100))
+			test_error("setsockopt(TCP_AO)");
+	}
+}
+
+static const size_t nr_keys[] = { 512, 1024, 2048, 4096, 8192 };
+static union tcp_addr *test_ips;
+
+struct bench_stats {
+	uint64_t min;
+	uint64_t max;
+	uint64_t nr;
+	double mean;
+	double s2;
+};
+
+static struct bench_tests {
+	struct bench_stats delete_last_key;
+	struct bench_stats add_key;
+	struct bench_stats delete_rand_key;
+	struct bench_stats connect_last_key;
+	struct bench_stats connect_rand_key;
+	struct bench_stats delete_async;
+} bench_results[ARRAY_SIZE(nr_keys)];
+
+#define NSEC_PER_SEC 1000000000ULL
+
+static void measure_call(struct bench_stats *st,
+			 void (*f)(int, void *), int sk, void *arg)
+{
+	struct timespec start = {}, end = {};
+	double delta;
+	uint64_t nsec;
+
+	if (clock_gettime(CLOCK_MONOTONIC, &start))
+		test_error("clock_gettime()");
+
+	f(sk, arg);
+
+	if (clock_gettime(CLOCK_MONOTONIC, &end))
+		test_error("clock_gettime()");
+
+	nsec = (end.tv_sec - start.tv_sec) * NSEC_PER_SEC;
+	if (end.tv_nsec >= start.tv_nsec)
+		nsec += end.tv_nsec - start.tv_nsec;
+	else
+		nsec -= start.tv_nsec - end.tv_nsec;
+
+	if (st->nr == 0) {
+		st->min = st->max = nsec;
+	} else {
+		if (st->min > nsec)
+			st->min = nsec;
+		if (st->max < nsec)
+			st->max = nsec;
+	}
+
+	/* Welford-Knuth algorithm */
+	st->nr++;
+	delta = (double)nsec - st->mean;
+	st->mean += delta / st->nr;
+	st->s2 += delta * ((double)nsec - st->mean);
+}
+
+static void delete_mkt(int sk, void *arg)
+{
+	struct tcp_ao_del *ao = arg;
+
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_DEL_KEY, ao, sizeof(*ao)))
+		test_error("setsockopt(TCP_AO_DEL_KEY)");
+}
+
+static void add_back_mkt(int sk, void *arg)
+{
+	union tcp_addr *p = arg;
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, *p, -1, 100, 100))
+		test_error("setsockopt(TCP_AO)");
+}
+
+static void bench_delete(int lsk, struct bench_stats *add,
+			 struct bench_stats *del,
+			 union tcp_addr *ips, size_t ips_nr,
+			 bool rand_order, bool async)
+{
+	struct tcp_ao_del ao_del = {};
+	union tcp_addr *p;
+	size_t i;
+
+	ao_del.sndid = 100;
+	ao_del.rcvid = 100;
+	ao_del.del_async = !!async;
+	ao_del.prefix = DEFAULT_TEST_PREFIX;
+
+	/* Remove the first added */
+	p = (union tcp_addr *)&ips[0];
+	tcp_addr_to_sockaddr_in(&ao_del.addr, p, 0);
+
+	for (i = 0; i < BENCH_NR_ITERS; i++) {
+		measure_call(del, delete_mkt, lsk, (void *)&ao_del);
+
+		/* Restore it back */
+		measure_call(add, add_back_mkt, lsk, (void *)p);
+
+		/*
+		 * Slowest for FILO-linked-list:
+		 * on (i) iteration removing ips[i] element. When it gets
+		 * added to the list back - it becomes first to fetch, so
+		 * on (i + 1) iteration go to ips[i + 1] element.
+		 */
+		if (rand_order)
+			p = (union tcp_addr *)&ips[rand() % ips_nr];
+		else
+			p = (union tcp_addr *)&ips[i % ips_nr];
+		tcp_addr_to_sockaddr_in(&ao_del.addr, p, 0);
+	}
+}
+
+static void bench_connect_srv(int lsk, union tcp_addr *ips, size_t ips_nr)
+{
+	size_t i;
+
+	for (i = 0; i < BENCH_NR_ITERS; i++) {
+		int sk;
+
+		synchronize_threads();
+
+		if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+			test_error("test_wait_fd()");
+
+		sk = accept(lsk, NULL, NULL);
+		if (sk < 0)
+			test_error("accept()");
+
+		close(sk);
+	}
+}
+
+static void test_print_stats(const char *desc, size_t nr, struct bench_stats *bs)
+{
+	test_ok("%-20s\t%zu keys: min=%" PRIu64 "ms max=%" PRIu64 "ms mean=%gms stddev=%g",
+		desc, nr, bs->min / 1000000, bs->max / 1000000,
+		bs->mean / 1000000, sqrt((bs->mean / 1000000) / bs->nr));
+}
+
+static void *server_fn(void *arg)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(nr_keys); i++) {
+		struct bench_tests *bt = &bench_results[i];
+		int lsk;
+
+		test_ips = malloc(nr_keys[i] * sizeof(union tcp_addr));
+		if (!test_ips)
+			test_error("malloc()");
+
+		lsk = test_listen_socket(this_ip_addr, test_server_port + i, 1);
+
+		gen_test_ips(test_ips, nr_keys[i], false);
+		test_add_routes(test_ips, nr_keys[i]);
+		test_set_optmem(KERNEL_TCP_AO_KEY_SZ_ROUND_UP * nr_keys[i]);
+		server_apply_keys(lsk, test_ips, nr_keys[i]);
+
+		synchronize_threads();
+		bench_connect_srv(lsk, test_ips, nr_keys[i]);
+		bench_connect_srv(lsk, test_ips, nr_keys[i]);
+
+		/* The worst case for FILO-list */
+		bench_delete(lsk, &bt->add_key, &bt->delete_last_key,
+			     test_ips, nr_keys[i], false, false);
+		test_print_stats("Add a new key",
+				nr_keys[i], &bt->add_key);
+		test_print_stats("Delete: worst case",
+				nr_keys[i], &bt->delete_last_key);
+
+		bench_delete(lsk, &bt->add_key, &bt->delete_rand_key,
+			     test_ips, nr_keys[i], true, false);
+		test_print_stats("Delete: random-search",
+				nr_keys[i], &bt->delete_rand_key);
+
+		bench_delete(lsk, &bt->add_key, &bt->delete_async,
+			     test_ips, nr_keys[i], false, true);
+		test_print_stats("Delete: async", nr_keys[i], &bt->delete_async);
+
+		free(test_ips);
+		close(lsk);
+	}
+
+	return NULL;
+}
+
+static void connect_client(int sk, void *arg)
+{
+	size_t *p = arg;
+
+	if (test_connect_socket(sk, this_ip_dest, test_server_port + *p) <= 0)
+		test_error("failed to connect()");
+}
+
+static void client_addr_setup(int sk, union tcp_addr taddr)
+{
+#ifdef IPV6_TEST
+	struct sockaddr_in6 addr = {
+		.sin6_family	= AF_INET6,
+		.sin6_port	= 0,
+		.sin6_addr	= taddr.a6,
+	};
+#else
+	struct sockaddr_in addr = {
+		.sin_family	= AF_INET,
+		.sin_port	= 0,
+		.sin_addr	= taddr.a4,
+	};
+#endif
+	int ret;
+
+	ret = ip_addr_add(veth_name, TEST_FAMILY, taddr, TEST_PREFIX);
+	if (ret && ret != -EEXIST)
+		test_error("Failed to add ip address");
+	ret = ip_route_add(veth_name, TEST_FAMILY, taddr, this_ip_dest);
+	if (ret && ret != -EEXIST)
+		test_error("Failed to add route");
+
+	if (bind(sk, &addr, sizeof(addr)))
+		test_error("bind()");
+}
+
+static void bench_connect_client(size_t port_off, struct bench_tests *bt,
+		union tcp_addr *ips, size_t ips_nr, bool rand_order)
+{
+	struct bench_stats *con;
+	union tcp_addr *p;
+	size_t i;
+
+	if (rand_order)
+		con = &bt->connect_rand_key;
+	else
+		con = &bt->connect_last_key;
+
+	p = (union tcp_addr *)&ips[0];
+
+	for (i = 0; i < BENCH_NR_ITERS; i++) {
+		int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+
+		if (sk < 0)
+			test_error("socket()");
+
+		client_addr_setup(sk, *p);
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest,
+				 -1, 100, 100))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+		synchronize_threads();
+
+		measure_call(con, connect_client, sk, (void *)&port_off);
+
+		close(sk);
+
+		/*
+		 * Slowest for FILO-linked-list:
+		 * on (i) iteration removing ips[i] element. When it gets
+		 * added to the list back - it becomes first to fetch, so
+		 * on (i + 1) iteration go to ips[i + 1] element.
+		 */
+		if (rand_order)
+			p = (union tcp_addr *)&ips[rand() % ips_nr];
+		else
+			p = (union tcp_addr *)&ips[i % ips_nr];
+	}
+}
+
+static void *client_fn(void *arg)
+{
+	size_t i;
+
+	for (i = 0; i < ARRAY_SIZE(nr_keys); i++) {
+		struct bench_tests *bt = &bench_results[i];
+
+		synchronize_threads();
+		bench_connect_client(i, bt, test_ips, nr_keys[i], false);
+		test_print_stats("Connect: worst case",
+				nr_keys[i], &bt->connect_last_key);
+
+		bench_connect_client(i, bt, test_ips, nr_keys[i], false);
+		test_print_stats("Connect: random-search",
+				nr_keys[i], &bt->connect_last_key);
+	}
+	synchronize_threads();
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(31, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/config b/tools/testing/selftests/net/tcp_ao/config
new file mode 100644
index 000000000000..971cb6fa2d63
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/config
@@ -0,0 +1,11 @@
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_RMD160=y
+CONFIG_CRYPTO_SHA1=y
+CONFIG_IPV6=y
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_VRF=y
+CONFIG_TCP_AO=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TRACEPOINTS=y
+CONFIG_VETH=m
diff --git a/tools/testing/selftests/net/tcp_ao/connect-deny.c b/tools/testing/selftests/net/tcp_ao/connect-deny.c
new file mode 100644
index 000000000000..93b61e9a36f1
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/connect-deny.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "aolib.h"
+
+#define fault(type)	(inj == FAULT_ ## type)
+static volatile int sk_pair;
+
+static inline int test_add_key_maclen(int sk, const char *key, uint8_t maclen,
+				      union tcp_addr in_addr, uint8_t prefix,
+				      uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_add tmp = {};
+	int err;
+
+	if (prefix > DEFAULT_TEST_PREFIX)
+		prefix = DEFAULT_TEST_PREFIX;
+
+	err = test_prepare_key(&tmp, DEFAULT_TEST_ALGO, in_addr, false, false,
+			       prefix, 0, sndid, rcvid, maclen,
+			       0, strlen(key), key);
+	if (err)
+		return err;
+
+	err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp));
+	if (err < 0)
+		return -errno;
+
+	return test_verify_socket_key(sk, &tmp);
+}
+
+static void try_accept(const char *tst_name, unsigned int port, const char *pwd,
+		       union tcp_addr addr, uint8_t prefix,
+		       uint8_t sndid, uint8_t rcvid, uint8_t maclen,
+		       const char *cnt_name, test_cnt cnt_expected,
+		       fault_t inj)
+{
+	struct tcp_counters cnt1, cnt2;
+	uint64_t before_cnt = 0, after_cnt = 0; /* silence GCC */
+	test_cnt poll_cnt = (cnt_expected == TEST_CNT_GOOD) ? 0 : cnt_expected;
+	int lsk, err, sk = 0;
+
+	lsk = test_listen_socket(this_ip_addr, port, 1);
+
+	if (pwd && test_add_key_maclen(lsk, pwd, maclen, addr, prefix, sndid, rcvid))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	if (cnt_name)
+		before_cnt = netstat_get_one(cnt_name, NULL);
+	if (pwd && test_get_tcp_counters(lsk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* preparations done */
+
+	err = test_skpair_wait_poll(lsk, 0, poll_cnt, &sk_pair);
+	if (err == -ETIMEDOUT) {
+		sk_pair = err;
+		if (!fault(TIMEOUT))
+			test_fail("%s: timed out for accept()", tst_name);
+	} else if (err == -EKEYREJECTED) {
+		if (!fault(KEYREJECT))
+			test_fail("%s: key was rejected", tst_name);
+	} else if (err < 0) {
+		test_error("test_skpair_wait_poll()");
+	} else {
+		if (fault(TIMEOUT))
+			test_fail("%s: ready to accept", tst_name);
+
+		sk = accept(lsk, NULL, NULL);
+		if (sk < 0) {
+			test_error("accept()");
+		} else {
+			if (fault(TIMEOUT))
+				test_fail("%s: accepted", tst_name);
+		}
+	}
+
+	synchronize_threads(); /* before counter checks */
+	if (pwd && test_get_tcp_counters(lsk, &cnt2))
+		test_error("test_get_tcp_counters()");
+
+	close(lsk);
+
+	if (pwd)
+		test_assert_counters(tst_name, &cnt1, &cnt2, cnt_expected);
+
+	if (!cnt_name)
+		goto out;
+
+	after_cnt = netstat_get_one(cnt_name, NULL);
+
+	if (after_cnt <= before_cnt) {
+		test_fail("%s: %s counter did not increase: %" PRIu64 " <= %" PRIu64,
+				tst_name, cnt_name, after_cnt, before_cnt);
+	} else {
+		test_ok("%s: counter %s increased %" PRIu64  " => %" PRIu64,
+			tst_name, cnt_name, before_cnt, after_cnt);
+	}
+
+out:
+	synchronize_threads(); /* close() */
+	if (sk > 0)
+		close(sk);
+}
+
+static void *server_fn(void *arg)
+{
+	union tcp_addr wrong_addr, network_addr;
+	unsigned int port = test_server_port;
+
+	if (inet_pton(TEST_FAMILY, TEST_WRONG_IP, &wrong_addr) != 1)
+		test_error("Can't convert ip address %s", TEST_WRONG_IP);
+
+	try_accept("Non-AO server + AO client", port++, NULL,
+		   this_ip_dest, -1, 100, 100, 0,
+		   "TCPAOKeyNotFound", TEST_CNT_NS_KEY_NOT_FOUND, FAULT_TIMEOUT);
+
+	try_accept("AO server + Non-AO client", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 100, 100, 0,
+		   "TCPAORequired", TEST_CNT_AO_REQUIRED, FAULT_TIMEOUT);
+
+	try_accept("Wrong password", port++, "something that is not DEFAULT_TEST_PASSWORD",
+		   this_ip_dest, -1, 100, 100, 0,
+		   "TCPAOBad", TEST_CNT_BAD, FAULT_TIMEOUT);
+
+	try_accept("Wrong rcv id", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 100, 101, 0,
+		   "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND, FAULT_TIMEOUT);
+
+	try_accept("Wrong snd id", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 101, 100, 0,
+		   "TCPAOGood", TEST_CNT_GOOD, FAULT_TIMEOUT);
+
+	try_accept("Different maclen", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 100, 100, 8,
+		   "TCPAOBad", TEST_CNT_BAD, FAULT_TIMEOUT);
+
+	try_accept("Server: Wrong addr", port++, DEFAULT_TEST_PASSWORD,
+		   wrong_addr, -1, 100, 100, 0,
+		   "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND, FAULT_TIMEOUT);
+
+	/* Key rejected by the other side, failing short through skpair */
+	try_accept("Client: Wrong addr", port++, NULL,
+		   this_ip_dest, -1, 100, 100, 0, NULL, 0, FAULT_KEYREJECT);
+
+	try_accept("rcv id != snd id", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 200, 100, 0,
+		   "TCPAOGood", TEST_CNT_GOOD, 0);
+
+	if (inet_pton(TEST_FAMILY, TEST_NETWORK, &network_addr) != 1)
+		test_error("Can't convert ip address %s", TEST_NETWORK);
+
+	try_accept("Server: prefix match", port++, DEFAULT_TEST_PASSWORD,
+		   network_addr, 16, 100, 100, 0,
+		   "TCPAOGood", TEST_CNT_GOOD, 0);
+
+	try_accept("Client: prefix match", port++, DEFAULT_TEST_PASSWORD,
+		   this_ip_dest, -1, 100, 100, 0,
+		   "TCPAOGood", TEST_CNT_GOOD, 0);
+
+	/* client exits */
+	synchronize_threads();
+	return NULL;
+}
+
+static void try_connect(const char *tst_name, unsigned int port,
+			const char *pwd, union tcp_addr addr, uint8_t prefix,
+			uint8_t sndid, uint8_t rcvid,
+			test_cnt cnt_expected, fault_t inj)
+{
+	struct tcp_counters cnt1, cnt2;
+	int sk, ret;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (pwd && test_add_key(sk, pwd, addr, prefix, sndid, rcvid))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	if (pwd && test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* preparations done */
+
+	ret = test_skpair_connect_poll(sk, this_ip_dest, port, cnt_expected, &sk_pair);
+	synchronize_threads(); /* before counter checks */
+	if (ret < 0) {
+		sk_pair = ret;
+		if (fault(KEYREJECT) && ret == -EKEYREJECTED) {
+			test_ok("%s: connect() was prevented", tst_name);
+		} else if (ret == -ETIMEDOUT && fault(TIMEOUT)) {
+			test_ok("%s", tst_name);
+		} else if (ret == -ECONNREFUSED &&
+				(fault(TIMEOUT) || fault(KEYREJECT))) {
+			test_ok("%s: refused to connect", tst_name);
+		} else {
+			test_error("%s: connect() returned %d", tst_name, ret);
+		}
+		goto out;
+	}
+
+	if (fault(TIMEOUT) || fault(KEYREJECT))
+		test_fail("%s: connected", tst_name);
+	else
+		test_ok("%s: connected", tst_name);
+	if (pwd && ret > 0) {
+		if (test_get_tcp_counters(sk, &cnt2))
+			test_error("test_get_tcp_counters()");
+		test_assert_counters(tst_name, &cnt1, &cnt2, cnt_expected);
+	} else if (pwd) {
+		test_tcp_counters_free(&cnt1);
+	}
+out:
+	synchronize_threads(); /* close() */
+
+	if (ret > 0)
+		close(sk);
+}
+
+static void *client_fn(void *arg)
+{
+	union tcp_addr wrong_addr, network_addr, addr_any = {};
+	unsigned int port = test_server_port;
+
+	if (inet_pton(TEST_FAMILY, TEST_WRONG_IP, &wrong_addr) != 1)
+		test_error("Can't convert ip address %s", TEST_WRONG_IP);
+
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("Non-AO server + AO client", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	trace_hash_event_expect(TCP_HASH_AO_REQUIRED, this_ip_addr, this_ip_dest,
+				-1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO server + Non-AO client", port++, NULL,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("Wrong password", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("Wrong rcv id", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	/*
+	 * XXX: The test doesn't increase any counters, see tcp_make_synack().
+	 * Potentially, it can be speed up by setting sk_pair = -ETIMEDOUT
+	 * but the price would be increased complexity of the tracer thread.
+	 */
+	trace_ao_event_sk_expect(TCP_AO_SYNACK_NO_KEY, this_ip_dest, addr_any,
+				 port, 0, 100, 100);
+	try_connect("Wrong snd id", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	trace_ao_event_expect(TCP_AO_WRONG_MACLEN, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("Different maclen", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("Server: Wrong addr", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, 0, FAULT_TIMEOUT);
+
+	try_connect("Client: Wrong addr", port++, DEFAULT_TEST_PASSWORD,
+			wrong_addr, -1, 100, 100, 0, FAULT_KEYREJECT);
+
+	try_connect("rcv id != snd id", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 200, TEST_CNT_GOOD, 0);
+
+	if (inet_pton(TEST_FAMILY, TEST_NETWORK, &network_addr) != 1)
+		test_error("Can't convert ip address %s", TEST_NETWORK);
+
+	try_connect("Server: prefix match", port++, DEFAULT_TEST_PASSWORD,
+			this_ip_dest, -1, 100, 100, TEST_CNT_GOOD, 0);
+
+	try_connect("Client: prefix match", port++, DEFAULT_TEST_PASSWORD,
+			network_addr, 16, 100, 100, TEST_CNT_GOOD, 0);
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(22, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/connect.c b/tools/testing/selftests/net/tcp_ao/connect.c
new file mode 100644
index 000000000000..340f00e979ea
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/connect.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "aolib.h"
+
+static void *server_fn(void *arg)
+{
+	int sk, lsk;
+	ssize_t bytes;
+
+	lsk = test_listen_socket(this_ip_addr, test_server_port, 1);
+
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	synchronize_threads();
+
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	synchronize_threads();
+
+	bytes = test_server_run(sk, 0, 0);
+
+	test_fail("server served: %zd", bytes);
+	return NULL;
+}
+
+static void *client_fn(void *arg)
+{
+	int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	uint64_t before_aogood, after_aogood;
+	const size_t nr_packets = 20;
+	struct netstat *ns_before, *ns_after;
+	struct tcp_counters ao1, ao2;
+
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads();
+	if (test_connect_socket(sk, this_ip_dest, test_server_port) <= 0)
+		test_error("failed to connect()");
+	synchronize_threads();
+
+	ns_before = netstat_read();
+	before_aogood = netstat_get(ns_before, "TCPAOGood", NULL);
+	if (test_get_tcp_counters(sk, &ao1))
+		test_error("test_get_tcp_counters()");
+
+	if (test_client_verify(sk, 100, nr_packets)) {
+		test_fail("verify failed");
+		return NULL;
+	}
+
+	ns_after = netstat_read();
+	after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
+	if (test_get_tcp_counters(sk, &ao2))
+		test_error("test_get_tcp_counters()");
+	netstat_print_diff(ns_before, ns_after);
+	netstat_free(ns_before);
+	netstat_free(ns_after);
+
+	if (nr_packets > (after_aogood - before_aogood)) {
+		test_fail("TCPAOGood counter mismatch: %zu > (%" PRIu64 " - %" PRIu64 ")",
+				nr_packets, after_aogood, before_aogood);
+		return NULL;
+	}
+	if (test_assert_counters("connect", &ao1, &ao2, TEST_CNT_GOOD))
+		return NULL;
+
+	test_ok("connect TCPAOGood %" PRIu64 "/%" PRIu64 "/%" PRIu64 " => %" PRIu64 "/%" PRIu64 "/%" PRIu64 ", sent %zu",
+			before_aogood, ao1.ao.ao_info_pkt_good,
+			ao1.ao.key_cnts[0].pkt_good,
+			after_aogood, ao2.ao.ao_info_pkt_good,
+			ao2.ao.key_cnts[0].pkt_good,
+			nr_packets);
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(2, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/icmps-accept.c b/tools/testing/selftests/net/tcp_ao/icmps-accept.c
new file mode 120000
index 000000000000..0a5bb85eb260
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/icmps-accept.c
@@ -0,0 +1 @@
+icmps-discard.c
+\ No newline at end of file
diff --git a/tools/testing/selftests/net/tcp_ao/icmps-discard.c b/tools/testing/selftests/net/tcp_ao/icmps-discard.c
new file mode 100644
index 000000000000..85c1a1e958c6
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/icmps-discard.c
@@ -0,0 +1,448 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Selftest that verifies that incomping ICMPs are ignored,
+ * the TCP connection stays alive, no hard or soft errors get reported
+ * to the usespace and the counter for ignored ICMPs is updated.
+ *
+ * RFC5925, 7.8:
+ * >> A TCP-AO implementation MUST default to ignore incoming ICMPv4
+ * messages of Type 3 (destination unreachable), Codes 2-4 (protocol
+ * unreachable, port unreachable, and fragmentation needed -- ’hard
+ * errors’), and ICMPv6 Type 1 (destination unreachable), Code 1
+ * (administratively prohibited) and Code 4 (port unreachable) intended
+ * for connections in synchronized states (ESTABLISHED, FIN-WAIT-1, FIN-
+ * WAIT-2, CLOSE-WAIT, CLOSING, LAST-ACK, TIME-WAIT) that match MKTs.
+ *
+ * Author: Dmitry Safonov <dima@arista.com>
+ */
+#include <inttypes.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/ipv6.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <sys/socket.h>
+#include "aolib.h"
+#include "../../../../include/linux/compiler.h"
+
+const size_t packets_nr = 20;
+const size_t packet_size = 100;
+const char *tcpao_icmps	= "TCPAODroppedIcmps";
+
+#ifdef IPV6_TEST
+const char *dst_unreach	= "Icmp6InDestUnreachs";
+const int sk_ip_level	= SOL_IPV6;
+const int sk_recverr	= IPV6_RECVERR;
+#else
+const char *dst_unreach	= "InDestUnreachs";
+const int sk_ip_level	= SOL_IP;
+const int sk_recverr	= IP_RECVERR;
+#endif
+
+/* Server is expected to fail with hard error if ::accept_icmp is set */
+#ifdef TEST_ICMPS_ACCEPT
+# define test_icmps_fail test_ok
+# define test_icmps_ok test_fail
+#else
+# define test_icmps_fail test_fail
+# define test_icmps_ok test_ok
+#endif
+
+static void serve_interfered(int sk)
+{
+	ssize_t test_quota = packet_size * packets_nr * 10;
+	uint64_t dest_unreach_a, dest_unreach_b;
+	uint64_t icmp_ignored_a, icmp_ignored_b;
+	struct tcp_counters cnt1, cnt2;
+	bool counter_not_found;
+	struct netstat *ns_after, *ns_before;
+	ssize_t bytes;
+
+	ns_before = netstat_read();
+	dest_unreach_a = netstat_get(ns_before, dst_unreach, NULL);
+	icmp_ignored_a = netstat_get(ns_before, tcpao_icmps, NULL);
+	if (test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+	bytes = test_server_run(sk, test_quota, 0);
+	ns_after = netstat_read();
+	netstat_print_diff(ns_before, ns_after);
+	dest_unreach_b = netstat_get(ns_after, dst_unreach, NULL);
+	icmp_ignored_b = netstat_get(ns_after, tcpao_icmps,
+					&counter_not_found);
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+
+	netstat_free(ns_before);
+	netstat_free(ns_after);
+
+	if (dest_unreach_a >= dest_unreach_b) {
+		test_fail("%s counter didn't change: %" PRIu64 " >= %" PRIu64,
+				dst_unreach, dest_unreach_a, dest_unreach_b);
+		return;
+	}
+	test_ok("%s delivered %" PRIu64,
+		dst_unreach, dest_unreach_b - dest_unreach_a);
+	if (bytes < 0)
+		test_icmps_fail("Server failed with %zd: %s", bytes, strerrordesc_np(-bytes));
+	else
+		test_icmps_ok("Server survived %zd bytes of traffic", test_quota);
+	if (counter_not_found) {
+		test_fail("Not found %s counter", tcpao_icmps);
+		return;
+	}
+#ifdef TEST_ICMPS_ACCEPT
+	test_assert_counters(NULL, &cnt1, &cnt2, TEST_CNT_GOOD);
+#else
+	test_assert_counters(NULL, &cnt1, &cnt2, TEST_CNT_GOOD | TEST_CNT_AO_DROPPED_ICMP);
+#endif
+	if (icmp_ignored_a >= icmp_ignored_b) {
+		test_icmps_fail("%s counter didn't change: %" PRIu64 " >= %" PRIu64,
+				tcpao_icmps, icmp_ignored_a, icmp_ignored_b);
+		return;
+	}
+	test_icmps_ok("ICMPs ignored %" PRIu64, icmp_ignored_b - icmp_ignored_a);
+}
+
+static void *server_fn(void *arg)
+{
+	int val, sk, lsk;
+	bool accept_icmps = false;
+
+	lsk = test_listen_socket(this_ip_addr, test_server_port, 1);
+
+#ifdef TEST_ICMPS_ACCEPT
+	accept_icmps = true;
+#endif
+
+	if (test_set_ao_flags(lsk, false, accept_icmps))
+		test_error("setsockopt(TCP_AO_INFO)");
+
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	synchronize_threads();
+
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	/* Fail on hard ip errors, such as dest unreachable (RFC1122) */
+	val = 1;
+	if (setsockopt(sk, sk_ip_level, sk_recverr, &val, sizeof(val)))
+		test_error("setsockopt()");
+
+	synchronize_threads();
+
+	serve_interfered(sk);
+	return NULL;
+}
+
+static size_t packets_sent;
+static size_t icmps_sent;
+
+static uint32_t checksum4_nofold(void *data, size_t len, uint32_t sum)
+{
+	uint16_t *words = data;
+	size_t i;
+
+	for (i = 0; i < len / sizeof(uint16_t); i++)
+		sum += words[i];
+	if (len & 1)
+		sum += ((char *)data)[len - 1];
+	return sum;
+}
+
+static uint16_t checksum4_fold(void *data, size_t len, uint32_t sum)
+{
+	sum = checksum4_nofold(data, len, sum);
+	while (sum > 0xFFFF)
+		sum = (sum & 0xFFFF) + (sum >> 16);
+	return ~sum;
+}
+
+static void set_ip4hdr(struct iphdr *iph, size_t packet_len, int proto,
+		struct sockaddr_in *src, struct sockaddr_in *dst)
+{
+	iph->version	= 4;
+	iph->ihl	= 5;
+	iph->tos	= 0;
+	iph->tot_len	= htons(packet_len);
+	iph->ttl	= 2;
+	iph->protocol	= proto;
+	iph->saddr	= src->sin_addr.s_addr;
+	iph->daddr	= dst->sin_addr.s_addr;
+	iph->check	= checksum4_fold((void *)iph, iph->ihl << 1, 0);
+}
+
+static void icmp_interfere4(uint8_t type, uint8_t code, uint32_t rcv_nxt,
+		struct sockaddr_in *src, struct sockaddr_in *dst)
+{
+	int sk = socket(AF_INET, SOCK_RAW, IPPROTO_RAW);
+	struct {
+		struct iphdr iph;
+		struct icmphdr icmph;
+		struct iphdr iphe;
+		struct {
+			uint16_t sport;
+			uint16_t dport;
+			uint32_t seq;
+		} tcph;
+	} packet = {};
+	size_t packet_len;
+	ssize_t bytes;
+
+	if (sk < 0)
+		test_error("socket(AF_INET, SOCK_RAW, IPPROTO_RAW)");
+
+	packet_len = sizeof(packet);
+	set_ip4hdr(&packet.iph, packet_len, IPPROTO_ICMP, src, dst);
+
+	packet.icmph.type = type;
+	packet.icmph.code = code;
+	if (code == ICMP_FRAG_NEEDED) {
+		randomize_buffer(&packet.icmph.un.frag.mtu,
+				sizeof(packet.icmph.un.frag.mtu));
+	}
+
+	packet_len = sizeof(packet.iphe) + sizeof(packet.tcph);
+	set_ip4hdr(&packet.iphe, packet_len, IPPROTO_TCP, dst, src);
+
+	packet.tcph.sport = dst->sin_port;
+	packet.tcph.dport = src->sin_port;
+	packet.tcph.seq = htonl(rcv_nxt);
+
+	packet_len = sizeof(packet) - sizeof(packet.iph);
+	packet.icmph.checksum = checksum4_fold((void *)&packet.icmph,
+						packet_len, 0);
+
+	bytes = sendto(sk, &packet, sizeof(packet), 0,
+		       (struct sockaddr *)dst, sizeof(*dst));
+	if (bytes != sizeof(packet))
+		test_error("send(): %zd", bytes);
+	icmps_sent++;
+
+	close(sk);
+}
+
+static void set_ip6hdr(struct ipv6hdr *iph, size_t packet_len, int proto,
+		struct sockaddr_in6 *src, struct sockaddr_in6 *dst)
+{
+	iph->version		= 6;
+	iph->payload_len	= htons(packet_len);
+	iph->nexthdr		= proto;
+	iph->hop_limit		= 2;
+	iph->saddr		= src->sin6_addr;
+	iph->daddr		= dst->sin6_addr;
+}
+
+static inline uint16_t csum_fold(uint32_t csum)
+{
+	uint32_t sum = csum;
+
+	sum = (sum & 0xffff) + (sum >> 16);
+	sum = (sum & 0xffff) + (sum >> 16);
+	return (uint16_t)~sum;
+}
+
+static inline uint32_t csum_add(uint32_t csum, uint32_t addend)
+{
+	uint32_t res = csum;
+
+	res += addend;
+	return res + (res < addend);
+}
+
+noinline uint32_t checksum6_nofold(void *data, size_t len, uint32_t sum)
+{
+	uint16_t *words = data;
+	size_t i;
+
+	for (i = 0; i < len / sizeof(uint16_t); i++)
+		sum = csum_add(sum, words[i]);
+	if (len & 1)
+		sum = csum_add(sum, ((char *)data)[len - 1]);
+	return sum;
+}
+
+noinline uint16_t icmp6_checksum(struct sockaddr_in6 *src,
+				 struct sockaddr_in6 *dst,
+				 void *ptr, size_t len, uint8_t proto)
+{
+	struct {
+		struct in6_addr saddr;
+		struct in6_addr daddr;
+		uint32_t payload_len;
+		uint8_t zero[3];
+		uint8_t nexthdr;
+	} pseudo_header = {};
+	uint32_t sum;
+
+	pseudo_header.saddr		= src->sin6_addr;
+	pseudo_header.daddr		= dst->sin6_addr;
+	pseudo_header.payload_len	= htonl(len);
+	pseudo_header.nexthdr		= proto;
+
+	sum = checksum6_nofold(&pseudo_header, sizeof(pseudo_header), 0);
+	sum = checksum6_nofold(ptr, len, sum);
+
+	return csum_fold(sum);
+}
+
+static void icmp6_interfere(int type, int code, uint32_t rcv_nxt,
+		struct sockaddr_in6 *src, struct sockaddr_in6 *dst)
+{
+	int sk = socket(AF_INET6, SOCK_RAW, IPPROTO_RAW);
+	struct sockaddr_in6 dst_raw = *dst;
+	struct {
+		struct ipv6hdr iph;
+		struct icmp6hdr icmph;
+		struct ipv6hdr iphe;
+		struct {
+			uint16_t sport;
+			uint16_t dport;
+			uint32_t seq;
+		} tcph;
+	} packet = {};
+	size_t packet_len;
+	ssize_t bytes;
+
+
+	if (sk < 0)
+		test_error("socket(AF_INET6, SOCK_RAW, IPPROTO_RAW)");
+
+	packet_len = sizeof(packet) - sizeof(packet.iph);
+	set_ip6hdr(&packet.iph, packet_len, IPPROTO_ICMPV6, src, dst);
+
+	packet.icmph.icmp6_type = type;
+	packet.icmph.icmp6_code = code;
+
+	packet_len = sizeof(packet.iphe) + sizeof(packet.tcph);
+	set_ip6hdr(&packet.iphe, packet_len, IPPROTO_TCP, dst, src);
+
+	packet.tcph.sport = dst->sin6_port;
+	packet.tcph.dport = src->sin6_port;
+	packet.tcph.seq = htonl(rcv_nxt);
+
+	packet_len = sizeof(packet) - sizeof(packet.iph);
+
+	packet.icmph.icmp6_cksum = icmp6_checksum(src, dst,
+			(void *)&packet.icmph, packet_len, IPPROTO_ICMPV6);
+
+	dst_raw.sin6_port = htons(IPPROTO_RAW);
+	bytes = sendto(sk, &packet, sizeof(packet), 0,
+		       (struct sockaddr *)&dst_raw, sizeof(dst_raw));
+	if (bytes != sizeof(packet))
+		test_error("send(): %zd", bytes);
+	icmps_sent++;
+
+	close(sk);
+}
+
+static uint32_t get_rcv_nxt(int sk)
+{
+	int val = TCP_REPAIR_ON;
+	uint32_t ret;
+	socklen_t sz = sizeof(ret);
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR, &val, sizeof(val)))
+		test_error("setsockopt(TCP_REPAIR)");
+	val = TCP_RECV_QUEUE;
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_QUEUE, &val, sizeof(val)))
+		test_error("setsockopt(TCP_REPAIR_QUEUE)");
+	if (getsockopt(sk, SOL_TCP, TCP_QUEUE_SEQ, &ret, &sz))
+		test_error("getsockopt(TCP_QUEUE_SEQ)");
+	val = TCP_REPAIR_OFF_NO_WP;
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR, &val, sizeof(val)))
+		test_error("setsockopt(TCP_REPAIR)");
+	return ret;
+}
+
+static void icmp_interfere(const size_t nr, uint32_t rcv_nxt, void *src, void *dst)
+{
+	struct sockaddr_in *saddr4 = src;
+	struct sockaddr_in *daddr4 = dst;
+	struct sockaddr_in6 *saddr6 = src;
+	struct sockaddr_in6 *daddr6 = dst;
+	size_t i;
+
+	if (saddr4->sin_family != daddr4->sin_family)
+		test_error("Different address families");
+
+	for (i = 0; i < nr; i++) {
+		if (saddr4->sin_family == AF_INET) {
+			icmp_interfere4(ICMP_DEST_UNREACH, ICMP_PROT_UNREACH,
+					rcv_nxt, saddr4, daddr4);
+			icmp_interfere4(ICMP_DEST_UNREACH, ICMP_PORT_UNREACH,
+					rcv_nxt, saddr4, daddr4);
+			icmp_interfere4(ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
+					rcv_nxt, saddr4, daddr4);
+			icmps_sent += 3;
+		} else if (saddr4->sin_family == AF_INET6) {
+			icmp6_interfere(ICMPV6_DEST_UNREACH,
+					ICMPV6_ADM_PROHIBITED,
+					rcv_nxt, saddr6, daddr6);
+			icmp6_interfere(ICMPV6_DEST_UNREACH,
+					ICMPV6_PORT_UNREACH,
+					rcv_nxt, saddr6, daddr6);
+			icmps_sent += 2;
+		} else {
+			test_error("Not ip address family");
+		}
+	}
+}
+
+static void send_interfered(int sk)
+{
+	struct sockaddr_in6 src, dst;
+	socklen_t addr_sz;
+
+	addr_sz = sizeof(src);
+	if (getsockname(sk, &src, &addr_sz))
+		test_error("getsockname()");
+	addr_sz = sizeof(dst);
+	if (getpeername(sk, &dst, &addr_sz))
+		test_error("getpeername()");
+
+	while (1) {
+		uint32_t rcv_nxt;
+
+		if (test_client_verify(sk, packet_size, packets_nr)) {
+			test_fail("client: connection is broken");
+			return;
+		}
+		packets_sent += packets_nr;
+		rcv_nxt = get_rcv_nxt(sk);
+		icmp_interfere(packets_nr, rcv_nxt, (void *)&src, (void *)&dst);
+	}
+}
+
+static void *client_fn(void *arg)
+{
+	int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads();
+	if (test_connect_socket(sk, this_ip_dest, test_server_port) <= 0)
+		test_error("failed to connect()");
+	synchronize_threads();
+
+	send_interfered(sk);
+
+	/* Not expecting client to quit */
+	test_fail("client disconnected");
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(4, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/key-management.c b/tools/testing/selftests/net/tcp_ao/key-management.c
new file mode 100644
index 000000000000..69d9a7a05d5c
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/key-management.c
@@ -0,0 +1,1198 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+const size_t nr_packets = 20;
+const size_t msg_len = 100;
+const size_t quota = nr_packets * msg_len;
+union tcp_addr wrong_addr;
+#define SECOND_PASSWORD	"at all times sincere friends of freedom have been rare"
+#define fault(type)	(inj == FAULT_ ## type)
+
+static const int test_vrf_ifindex = 200;
+static const uint8_t test_vrf_tabid = 42;
+static void setup_vrfs(void)
+{
+	int err;
+
+	if (!kernel_config_has(KCONFIG_NET_VRF))
+		return;
+
+	err = add_vrf("ksft-vrf", test_vrf_tabid, test_vrf_ifindex, -1);
+	if (err)
+		test_error("Failed to add a VRF: %d", err);
+
+	err = link_set_up("ksft-vrf");
+	if (err)
+		test_error("Failed to bring up a VRF");
+
+	err = ip_route_add_vrf(veth_name, TEST_FAMILY,
+			       this_ip_addr, this_ip_dest, test_vrf_tabid);
+	if (err)
+		test_error("Failed to add a route to VRF");
+}
+
+
+static int prepare_sk(union tcp_addr *addr, uint8_t sndid, uint8_t rcvid)
+{
+	int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest,
+			 DEFAULT_TEST_PREFIX, 100, 100))
+		test_error("test_add_key()");
+
+	if (addr && test_add_key(sk, SECOND_PASSWORD, *addr,
+				 DEFAULT_TEST_PREFIX, sndid, rcvid))
+		test_error("test_add_key()");
+
+	return sk;
+}
+
+static int prepare_lsk(union tcp_addr *addr, uint8_t sndid, uint8_t rcvid)
+{
+	int sk = prepare_sk(addr, sndid, rcvid);
+
+	if (listen(sk, 10))
+		test_error("listen()");
+
+	return sk;
+}
+
+static int test_del_key(int sk, uint8_t sndid, uint8_t rcvid, bool async,
+			int current_key, int rnext_key)
+{
+	struct tcp_ao_info_opt ao_info = {};
+	struct tcp_ao_getsockopt key = {};
+	struct tcp_ao_del del = {};
+	sockaddr_af sockaddr;
+	int err;
+
+	tcp_addr_to_sockaddr_in(&del.addr, &this_ip_dest, 0);
+	del.prefix = DEFAULT_TEST_PREFIX;
+	del.sndid = sndid;
+	del.rcvid = rcvid;
+
+	if (current_key >= 0) {
+		del.set_current = 1;
+		del.current_key = (uint8_t)current_key;
+	}
+	if (rnext_key >= 0) {
+		del.set_rnext = 1;
+		del.rnext = (uint8_t)rnext_key;
+	}
+
+	err = setsockopt(sk, IPPROTO_TCP, TCP_AO_DEL_KEY, &del, sizeof(del));
+	if (err < 0)
+		return -errno;
+
+	if (async)
+		return 0;
+
+	tcp_addr_to_sockaddr_in(&sockaddr, &this_ip_dest, 0);
+	err = test_get_one_ao(sk, &key, &sockaddr, sizeof(sockaddr),
+			      DEFAULT_TEST_PREFIX, sndid, rcvid);
+	if (!err)
+		return -EEXIST;
+	if (err != -E2BIG)
+		test_error("getsockopt()");
+	if (current_key < 0 && rnext_key < 0)
+		return 0;
+	if (test_get_ao_info(sk, &ao_info))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+	if (current_key >= 0 && ao_info.current_key != (uint8_t)current_key)
+		return -ENOTRECOVERABLE;
+	if (rnext_key >= 0 && ao_info.rnext != (uint8_t)rnext_key)
+		return -ENOTRECOVERABLE;
+	return 0;
+}
+
+static void try_delete_key(char *tst_name, int sk, uint8_t sndid, uint8_t rcvid,
+			   bool async, int current_key, int rnext_key,
+			   fault_t inj)
+{
+	int err;
+
+	err = test_del_key(sk, sndid, rcvid, async, current_key, rnext_key);
+	if ((err == -EBUSY && fault(BUSY)) || (err == -EINVAL && fault(CURRNEXT))) {
+		test_ok("%s: key deletion was prevented", tst_name);
+		return;
+	}
+	if (err && fault(FIXME)) {
+		test_xfail("%s: failed to delete the key %u:%u %d",
+			   tst_name, sndid, rcvid, err);
+		return;
+	}
+	if (!err) {
+		if (fault(BUSY) || fault(CURRNEXT)) {
+			test_fail("%s: the key was deleted %u:%u %d", tst_name,
+				  sndid, rcvid, err);
+		} else {
+			test_ok("%s: the key was deleted", tst_name);
+		}
+		return;
+	}
+	test_fail("%s: can't delete the key %u:%u %d", tst_name, sndid, rcvid, err);
+}
+
+static int test_set_key(int sk, int current_keyid, int rnext_keyid)
+{
+	struct tcp_ao_info_opt ao_info = {};
+	int err;
+
+	if (current_keyid >= 0) {
+		ao_info.set_current = 1;
+		ao_info.current_key = (uint8_t)current_keyid;
+	}
+	if (rnext_keyid >= 0) {
+		ao_info.set_rnext = 1;
+		ao_info.rnext = (uint8_t)rnext_keyid;
+	}
+
+	err = test_set_ao_info(sk, &ao_info);
+	if (err)
+		return err;
+	if (test_get_ao_info(sk, &ao_info))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+	if (current_keyid >= 0 && ao_info.current_key != (uint8_t)current_keyid)
+		return -ENOTRECOVERABLE;
+	if (rnext_keyid >= 0 && ao_info.rnext != (uint8_t)rnext_keyid)
+		return -ENOTRECOVERABLE;
+	return 0;
+}
+
+static int test_add_current_rnext_key(int sk, const char *key, uint8_t keyflags,
+				      union tcp_addr in_addr, uint8_t prefix,
+				      bool set_current, bool set_rnext,
+				      uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_add tmp = {};
+	int err;
+
+	err = test_prepare_key(&tmp, DEFAULT_TEST_ALGO, in_addr,
+			       set_current, set_rnext,
+			       prefix, 0, sndid, rcvid, 0, keyflags,
+			       strlen(key), key);
+	if (err)
+		return err;
+
+
+	err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp));
+	if (err < 0)
+		return -errno;
+
+	return test_verify_socket_key(sk, &tmp);
+}
+
+static int __try_add_current_rnext_key(int sk, const char *key, uint8_t keyflags,
+				       union tcp_addr in_addr, uint8_t prefix,
+				       bool set_current, bool set_rnext,
+				       uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_info_opt ao_info = {};
+	int err;
+
+	err = test_add_current_rnext_key(sk, key, keyflags, in_addr, prefix,
+					 set_current, set_rnext, sndid, rcvid);
+	if (err)
+		return err;
+
+	if (test_get_ao_info(sk, &ao_info))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+	if (set_current && ao_info.current_key != sndid)
+		return -ENOTRECOVERABLE;
+	if (set_rnext && ao_info.rnext != rcvid)
+		return -ENOTRECOVERABLE;
+	return 0;
+}
+
+static void try_add_current_rnext_key(char *tst_name, int sk, const char *key,
+				     uint8_t keyflags,
+				     union tcp_addr in_addr, uint8_t prefix,
+				     bool set_current, bool set_rnext,
+				     uint8_t sndid, uint8_t rcvid, fault_t inj)
+{
+	int err;
+
+	err = __try_add_current_rnext_key(sk, key, keyflags, in_addr, prefix,
+					  set_current, set_rnext, sndid, rcvid);
+	if (!err && !fault(CURRNEXT)) {
+		test_ok("%s", tst_name);
+		return;
+	}
+	if (err == -EINVAL && fault(CURRNEXT)) {
+		test_ok("%s", tst_name);
+		return;
+	}
+	test_fail("%s", tst_name);
+}
+
+static void check_closed_socket(void)
+{
+	int sk;
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	try_delete_key("closed socket, delete a key", sk, 200, 200, 0, -1, -1, 0);
+	try_delete_key("closed socket, delete all keys", sk, 100, 100, 0, -1, -1, 0);
+	close(sk);
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	if (test_set_key(sk, 100, 200))
+		test_error("failed to set current/rnext keys");
+	try_delete_key("closed socket, delete current key", sk, 100, 100, 0, -1, -1, FAULT_BUSY);
+	try_delete_key("closed socket, delete rnext key", sk, 200, 200, 0, -1, -1, FAULT_BUSY);
+	close(sk);
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	if (test_add_key(sk, "Glory to heros!", this_ip_dest,
+			 DEFAULT_TEST_PREFIX, 10, 11))
+		test_error("test_add_key()");
+	if (test_add_key(sk, "Glory to Ukraine!", this_ip_dest,
+			 DEFAULT_TEST_PREFIX, 12, 13))
+		test_error("test_add_key()");
+	try_delete_key("closed socket, delete a key + set current/rnext", sk, 100, 100, 0, 10, 13, 0);
+	try_delete_key("closed socket, force-delete current key", sk, 10, 11, 0, 200, -1, 0);
+	try_delete_key("closed socket, force-delete rnext key", sk, 12, 13, 0, -1, 200, 0);
+	try_delete_key("closed socket, delete current+rnext key", sk, 200, 200, 0, -1, -1, FAULT_BUSY);
+	close(sk);
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	if (test_set_key(sk, 100, 200))
+		test_error("failed to set current/rnext keys");
+	try_add_current_rnext_key("closed socket, add + change current key",
+				  sk, "Laaaa! Lalala-la-la-lalala...", 0,
+				  this_ip_dest, DEFAULT_TEST_PREFIX,
+				  true, false, 10, 20, 0);
+	try_add_current_rnext_key("closed socket, add + change rnext key",
+				  sk, "Laaaa! Lalala-la-la-lalala...", 0,
+				  this_ip_dest, DEFAULT_TEST_PREFIX,
+				  false, true, 20, 10, 0);
+	close(sk);
+}
+
+static void assert_no_current_rnext(const char *tst_msg, int sk)
+{
+	struct tcp_ao_info_opt ao_info = {};
+
+	if (test_get_ao_info(sk, &ao_info))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+
+	errno = 0;
+	if (ao_info.set_current || ao_info.set_rnext) {
+		test_xfail("%s: the socket has current/rnext keys: %d:%d",
+			   tst_msg,
+			   (ao_info.set_current) ? ao_info.current_key : -1,
+			   (ao_info.set_rnext) ? ao_info.rnext : -1);
+	} else {
+		test_ok("%s: the socket has no current/rnext keys", tst_msg);
+	}
+}
+
+static void assert_no_tcp_repair(void)
+{
+	struct tcp_ao_repair ao_img = {};
+	socklen_t len = sizeof(ao_img);
+	int sk, err;
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	test_enable_repair(sk);
+	if (listen(sk, 10))
+		test_error("listen()");
+	errno = 0;
+	err = getsockopt(sk, SOL_TCP, TCP_AO_REPAIR, &ao_img, &len);
+	if (err && errno == EPERM)
+		test_ok("listen socket, getsockopt(TCP_AO_REPAIR) is restricted");
+	else
+		test_fail("listen socket, getsockopt(TCP_AO_REPAIR) works");
+	errno = 0;
+	err = setsockopt(sk, SOL_TCP, TCP_AO_REPAIR, &ao_img, sizeof(ao_img));
+	if (err && errno == EPERM)
+		test_ok("listen socket, setsockopt(TCP_AO_REPAIR) is restricted");
+	else
+		test_fail("listen socket, setsockopt(TCP_AO_REPAIR) works");
+	close(sk);
+}
+
+static void check_listen_socket(void)
+{
+	int sk, err;
+
+	sk = prepare_lsk(&this_ip_dest, 200, 200);
+	try_delete_key("listen socket, delete a key", sk, 200, 200, 0, -1, -1, 0);
+	try_delete_key("listen socket, delete all keys", sk, 100, 100, 0, -1, -1, 0);
+	close(sk);
+
+	sk = prepare_lsk(&this_ip_dest, 200, 200);
+	err = test_set_key(sk, 100, -1);
+	if (err == -EINVAL)
+		test_ok("listen socket, setting current key not allowed");
+	else
+		test_fail("listen socket, set current key");
+	err = test_set_key(sk, -1, 200);
+	if (err == -EINVAL)
+		test_ok("listen socket, setting rnext key not allowed");
+	else
+		test_fail("listen socket, set rnext key");
+	close(sk);
+
+	sk = prepare_sk(&this_ip_dest, 200, 200);
+	if (test_set_key(sk, 100, 200))
+		test_error("failed to set current/rnext keys");
+	if (listen(sk, 10))
+		test_error("listen()");
+	assert_no_current_rnext("listen() after current/rnext keys set", sk);
+	try_delete_key("listen socket, delete current key from before listen()", sk, 100, 100, 0, -1, -1, FAULT_FIXME);
+	try_delete_key("listen socket, delete rnext key from before listen()", sk, 200, 200, 0, -1, -1, FAULT_FIXME);
+	close(sk);
+
+	assert_no_tcp_repair();
+
+	sk = prepare_lsk(&this_ip_dest, 200, 200);
+	if (test_add_key(sk, "Glory to heros!", this_ip_dest,
+			 DEFAULT_TEST_PREFIX, 10, 11))
+		test_error("test_add_key()");
+	if (test_add_key(sk, "Glory to Ukraine!", this_ip_dest,
+			 DEFAULT_TEST_PREFIX, 12, 13))
+		test_error("test_add_key()");
+	try_delete_key("listen socket, delete a key + set current/rnext", sk,
+		       100, 100, 0, 10, 13, FAULT_CURRNEXT);
+	try_delete_key("listen socket, force-delete current key", sk,
+		       10, 11, 0, 200, -1, FAULT_CURRNEXT);
+	try_delete_key("listen socket, force-delete rnext key", sk,
+		       12, 13, 0, -1, 200, FAULT_CURRNEXT);
+	try_delete_key("listen socket, delete a key", sk,
+		       200, 200, 0, -1, -1, 0);
+	close(sk);
+
+	sk = prepare_lsk(&this_ip_dest, 200, 200);
+	try_add_current_rnext_key("listen socket, add + change current key",
+				  sk, "Laaaa! Lalala-la-la-lalala...", 0,
+				  this_ip_dest, DEFAULT_TEST_PREFIX,
+				  true, false, 10, 20, FAULT_CURRNEXT);
+	try_add_current_rnext_key("listen socket, add + change rnext key",
+				  sk, "Laaaa! Lalala-la-la-lalala...", 0,
+				  this_ip_dest, DEFAULT_TEST_PREFIX,
+				  false, true, 20, 10, FAULT_CURRNEXT);
+	close(sk);
+}
+
+static const char *fips_fpath = "/proc/sys/crypto/fips_enabled";
+static bool is_fips_enabled(void)
+{
+	static int fips_checked = -1;
+	FILE *fenabled;
+	int enabled;
+
+	if (fips_checked >= 0)
+		return !!fips_checked;
+	if (access(fips_fpath, R_OK)) {
+		if (errno != ENOENT)
+			test_error("Can't open %s", fips_fpath);
+		fips_checked = 0;
+		return false;
+	}
+	fenabled = fopen(fips_fpath, "r");
+	if (!fenabled)
+		test_error("Can't open %s", fips_fpath);
+	if (fscanf(fenabled, "%d", &enabled) != 1)
+		test_error("Can't read from %s", fips_fpath);
+	fclose(fenabled);
+	fips_checked = !!enabled;
+	return !!fips_checked;
+}
+
+struct test_key {
+	char password[TCP_AO_MAXKEYLEN];
+	const char *alg;
+	unsigned int len;
+	uint8_t client_keyid;
+	uint8_t server_keyid;
+	uint8_t maclen;
+	uint8_t matches_client		: 1,
+		matches_server		: 1,
+		matches_vrf		: 1,
+		is_current		: 1,
+		is_rnext		: 1,
+		used_on_server_tx	: 1,
+		used_on_client_tx	: 1,
+		skip_counters_checks	: 1;
+};
+
+struct key_collection {
+	unsigned int nr_keys;
+	struct test_key *keys;
+};
+
+static struct key_collection collection;
+
+#define TEST_MAX_MACLEN		16
+const char *test_algos[] = {
+	"cmac(aes128)",
+	"hmac(sha1)", "hmac(sha512)", "hmac(sha384)", "hmac(sha256)",
+	"hmac(sha224)", "hmac(sha3-512)",
+	/* only if !CONFIG_FIPS */
+#define TEST_NON_FIPS_ALGOS	2
+	"hmac(rmd160)", "hmac(md5)"
+};
+const unsigned int test_maclens[] = { 1, 4, 12, 16 };
+#define MACLEN_SHIFT		2
+#define ALGOS_SHIFT		4
+
+static unsigned int make_mask(unsigned int shift, unsigned int prev_shift)
+{
+	unsigned int ret = BIT(shift) - 1;
+
+	return ret << prev_shift;
+}
+
+static void init_key_in_collection(unsigned int index, bool randomized)
+{
+	struct test_key *key = &collection.keys[index];
+	unsigned int algos_nr, algos_index;
+
+	/* Same for randomized and non-randomized test flows */
+	key->client_keyid = index;
+	key->server_keyid = 127 + index;
+	key->matches_client = 1;
+	key->matches_server = 1;
+	key->matches_vrf = 1;
+	/* not really even random, but good enough for a test */
+	key->len = rand() % (TCP_AO_MAXKEYLEN - TEST_TCP_AO_MINKEYLEN);
+	key->len += TEST_TCP_AO_MINKEYLEN;
+	randomize_buffer(key->password, key->len);
+
+	if (randomized) {
+		key->maclen = (rand() % TEST_MAX_MACLEN) + 1;
+		algos_index = rand();
+	} else {
+		unsigned int shift = MACLEN_SHIFT;
+
+		key->maclen = test_maclens[index & make_mask(shift, 0)];
+		algos_index = index & make_mask(ALGOS_SHIFT, shift);
+	}
+	algos_nr = ARRAY_SIZE(test_algos);
+	if (is_fips_enabled())
+		algos_nr -= TEST_NON_FIPS_ALGOS;
+	key->alg = test_algos[algos_index % algos_nr];
+}
+
+static int init_default_key_collection(unsigned int nr_keys, bool randomized)
+{
+	size_t key_sz = sizeof(collection.keys[0]);
+
+	if (!nr_keys) {
+		free(collection.keys);
+		collection.keys = NULL;
+		return 0;
+	}
+
+	/*
+	 * All keys have uniq sndid/rcvid and sndid != rcvid in order to
+	 * check for any bugs/issues for different keyids, visible to both
+	 * peers. Keyid == 254 is unused.
+	 */
+	if (nr_keys > 127)
+		test_error("Test requires too many keys, correct the source");
+
+	collection.keys = reallocarray(collection.keys, nr_keys, key_sz);
+	if (!collection.keys)
+		return -ENOMEM;
+
+	memset(collection.keys, 0, nr_keys * key_sz);
+	collection.nr_keys = nr_keys;
+	while (nr_keys--)
+		init_key_in_collection(nr_keys, randomized);
+
+	return 0;
+}
+
+static void test_key_error(const char *msg, struct test_key *key)
+{
+	test_error("%s: key: { %s, %u:%u, %u, %u:%u:%u:%u:%u (%u)}",
+		   msg, key->alg, key->client_keyid, key->server_keyid,
+		   key->maclen, key->matches_client, key->matches_server,
+		   key->matches_vrf, key->is_current, key->is_rnext, key->len);
+}
+
+static int test_add_key_cr(int sk, const char *pwd, unsigned int pwd_len,
+			   union tcp_addr addr, uint8_t vrf,
+			   uint8_t sndid, uint8_t rcvid,
+			   uint8_t maclen, const char *alg,
+			   bool set_current, bool set_rnext)
+{
+	struct tcp_ao_add tmp = {};
+	uint8_t keyflags = 0;
+	int err;
+
+	if (!alg)
+		alg = DEFAULT_TEST_ALGO;
+
+	if (vrf)
+		keyflags |= TCP_AO_KEYF_IFINDEX;
+	err = test_prepare_key(&tmp, alg, addr, set_current, set_rnext,
+			       DEFAULT_TEST_PREFIX, vrf, sndid, rcvid, maclen,
+			       keyflags, pwd_len, pwd);
+	if (err)
+		return err;
+
+	err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp));
+	if (err < 0)
+		return -errno;
+
+	return test_verify_socket_key(sk, &tmp);
+}
+
+static void verify_current_rnext(const char *tst, int sk,
+				 int current_keyid, int rnext_keyid)
+{
+	struct tcp_ao_info_opt ao_info = {};
+
+	if (test_get_ao_info(sk, &ao_info))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+
+	errno = 0;
+	if (current_keyid >= 0) {
+		if (!ao_info.set_current)
+			test_fail("%s: the socket doesn't have current key", tst);
+		else if (ao_info.current_key != current_keyid)
+			test_fail("%s: current key is not the expected one %d != %u",
+				  tst, current_keyid, ao_info.current_key);
+		else
+			test_ok("%s: current key %u as expected",
+				tst, ao_info.current_key);
+	}
+	if (rnext_keyid >= 0) {
+		if (!ao_info.set_rnext)
+			test_fail("%s: the socket doesn't have rnext key", tst);
+		else if (ao_info.rnext != rnext_keyid)
+			test_fail("%s: rnext key is not the expected one %d != %u",
+				  tst, rnext_keyid, ao_info.rnext);
+		else
+			test_ok("%s: rnext key %u as expected", tst, ao_info.rnext);
+	}
+}
+
+
+static int key_collection_socket(bool server, unsigned int port)
+{
+	unsigned int i;
+	int sk;
+
+	if (server)
+		sk = test_listen_socket(this_ip_addr, port, 1);
+	else
+		sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	for (i = 0; i < collection.nr_keys; i++) {
+		struct test_key *key = &collection.keys[i];
+		union tcp_addr *addr = &wrong_addr;
+		uint8_t sndid, rcvid, vrf;
+		bool set_current = false, set_rnext = false;
+
+		if (key->matches_vrf)
+			vrf = 0;
+		else
+			vrf = test_vrf_ifindex;
+		if (server) {
+			if (key->matches_client)
+				addr = &this_ip_dest;
+			sndid = key->server_keyid;
+			rcvid = key->client_keyid;
+		} else {
+			if (key->matches_server)
+				addr = &this_ip_dest;
+			sndid = key->client_keyid;
+			rcvid = key->server_keyid;
+			key->used_on_client_tx = set_current = key->is_current;
+			key->used_on_server_tx = set_rnext = key->is_rnext;
+		}
+
+		if (test_add_key_cr(sk, key->password, key->len,
+				    *addr, vrf, sndid, rcvid, key->maclen,
+				    key->alg, set_current, set_rnext))
+			test_key_error("setsockopt(TCP_AO_ADD_KEY)", key);
+#ifdef DEBUG
+		test_print("%s [%u/%u] key: { %s, %u:%u, %u, %u:%u:%u:%u (%u)}",
+			   server ? "server" : "client", i, collection.nr_keys,
+			   key->alg, rcvid, sndid, key->maclen,
+			   key->matches_client, key->matches_server,
+			   key->is_current, key->is_rnext, key->len);
+#endif
+	}
+	return sk;
+}
+
+static void verify_counters(const char *tst_name, bool is_listen_sk, bool server,
+			    struct tcp_counters *a, struct tcp_counters *b)
+{
+	unsigned int i;
+
+	test_assert_counters_sk(tst_name, a, b, TEST_CNT_GOOD);
+
+	for (i = 0; i < collection.nr_keys; i++) {
+		struct test_key *key = &collection.keys[i];
+		uint8_t sndid, rcvid;
+		bool rx_cnt_expected;
+
+		if (key->skip_counters_checks)
+			continue;
+		if (server) {
+			sndid = key->server_keyid;
+			rcvid = key->client_keyid;
+			rx_cnt_expected = key->used_on_client_tx;
+		} else {
+			sndid = key->client_keyid;
+			rcvid = key->server_keyid;
+			rx_cnt_expected = key->used_on_server_tx;
+		}
+
+		test_assert_counters_key(tst_name, &a->ao, &b->ao,
+					 rx_cnt_expected ? TEST_CNT_KEY_GOOD : 0,
+					 sndid, rcvid);
+	}
+	test_tcp_counters_free(a);
+	test_tcp_counters_free(b);
+	test_ok("%s: passed counters checks", tst_name);
+}
+
+static struct tcp_ao_getsockopt *lookup_key(struct tcp_ao_getsockopt *buf,
+					    size_t len, int sndid, int rcvid)
+{
+	size_t i;
+
+	for (i = 0; i < len; i++) {
+		if (sndid >= 0 && buf[i].sndid != sndid)
+			continue;
+		if (rcvid >= 0 && buf[i].rcvid != rcvid)
+			continue;
+		return &buf[i];
+	}
+	return NULL;
+}
+
+static void verify_keys(const char *tst_name, int sk,
+			bool is_listen_sk, bool server)
+{
+	socklen_t len = sizeof(struct tcp_ao_getsockopt);
+	struct tcp_ao_getsockopt *keys;
+	bool passed_test = true;
+	unsigned int i;
+
+	keys = calloc(collection.nr_keys, len);
+	if (!keys)
+		test_error("calloc()");
+
+	keys->nkeys = collection.nr_keys;
+	keys->get_all = 1;
+
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, keys, &len)) {
+		free(keys);
+		test_error("getsockopt(TCP_AO_GET_KEYS)");
+	}
+
+	for (i = 0; i < collection.nr_keys; i++) {
+		struct test_key *key = &collection.keys[i];
+		struct tcp_ao_getsockopt *dump_key;
+		bool is_kdf_aes_128_cmac = false;
+		bool is_cmac_aes = false;
+		uint8_t sndid, rcvid;
+		bool matches = false;
+
+		if (server) {
+			if (key->matches_client)
+				matches = true;
+			sndid = key->server_keyid;
+			rcvid = key->client_keyid;
+		} else {
+			if (key->matches_server)
+				matches = true;
+			sndid = key->client_keyid;
+			rcvid = key->server_keyid;
+		}
+		if (!key->matches_vrf)
+			matches = false;
+		/* no keys get removed on the original listener socket */
+		if (is_listen_sk)
+			matches = true;
+
+		dump_key = lookup_key(keys, keys->nkeys, sndid, rcvid);
+		if (matches != !!dump_key) {
+			test_fail("%s: key %u:%u %s%s on the socket",
+				  tst_name, sndid, rcvid,
+				  key->matches_vrf ? "" : "[vrf] ",
+				  matches ? "disappeared" : "yet present");
+			passed_test = false;
+			goto out;
+		}
+		if (!dump_key)
+			continue;
+
+		if (!strcmp("cmac(aes128)", key->alg)) {
+			is_kdf_aes_128_cmac = (key->len != 16);
+			is_cmac_aes = true;
+		}
+
+		if (is_cmac_aes) {
+			if (strcmp(dump_key->alg_name, "cmac(aes)")) {
+				test_fail("%s: key %u:%u cmac(aes) has unexpected alg %s",
+					  tst_name, sndid, rcvid,
+					  dump_key->alg_name);
+				passed_test = false;
+				continue;
+			}
+		} else if (strcmp(dump_key->alg_name, key->alg)) {
+			test_fail("%s: key %u:%u has unexpected alg %s != %s",
+				  tst_name, sndid, rcvid,
+				  dump_key->alg_name, key->alg);
+			passed_test = false;
+			continue;
+		}
+		if (is_kdf_aes_128_cmac) {
+			if (dump_key->keylen != 16) {
+				test_fail("%s: key %u:%u cmac(aes128) has unexpected len %u",
+					  tst_name, sndid, rcvid,
+					  dump_key->keylen);
+				continue;
+			}
+		} else if (dump_key->keylen != key->len) {
+			test_fail("%s: key %u:%u changed password len %u != %u",
+				  tst_name, sndid, rcvid,
+				  dump_key->keylen, key->len);
+			passed_test = false;
+			continue;
+		}
+		if (!is_kdf_aes_128_cmac &&
+		    memcmp(dump_key->key, key->password, key->len)) {
+			test_fail("%s: key %u:%u has different password",
+				  tst_name, sndid, rcvid);
+			passed_test = false;
+			continue;
+		}
+		if (dump_key->maclen != key->maclen) {
+			test_fail("%s: key %u:%u changed maclen %u != %u",
+				  tst_name, sndid, rcvid,
+				  dump_key->maclen, key->maclen);
+			passed_test = false;
+			continue;
+		}
+	}
+
+	if (passed_test)
+		test_ok("%s: The socket keys are consistent with the expectations",
+			tst_name);
+out:
+	free(keys);
+}
+
+static int start_server(const char *tst_name, unsigned int port, size_t quota,
+			struct tcp_counters *begin,
+			unsigned int current_index, unsigned int rnext_index)
+{
+	struct tcp_counters lsk_c1, lsk_c2;
+	ssize_t bytes;
+	int sk, lsk;
+
+	synchronize_threads(); /* 1: key collection initialized */
+	lsk = key_collection_socket(true, port);
+	if (test_get_tcp_counters(lsk, &lsk_c1))
+		test_error("test_get_tcp_counters()");
+	synchronize_threads(); /* 2: MKTs added => connect() */
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+	if (test_get_tcp_counters(sk, begin))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* 3: accepted => send data */
+	if (test_get_tcp_counters(lsk, &lsk_c2))
+		test_error("test_get_tcp_counters()");
+	verify_keys(tst_name, lsk, true, true);
+	close(lsk);
+
+	bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+	if (bytes != quota)
+		test_fail("%s: server served: %zd", tst_name, bytes);
+	else
+		test_ok("%s: server alive", tst_name);
+
+	verify_counters(tst_name, true, true, &lsk_c1, &lsk_c2);
+
+	return sk;
+}
+
+static void end_server(const char *tst_name, int sk,
+		       struct tcp_counters *begin)
+{
+	struct tcp_counters end;
+
+	if (test_get_tcp_counters(sk, &end))
+		test_error("test_get_tcp_counters()");
+	verify_keys(tst_name, sk, false, true);
+
+	synchronize_threads(); /* 4: verified => closed */
+	close(sk);
+
+	verify_counters(tst_name, false, true, begin, &end);
+	synchronize_threads(); /* 5: counters */
+}
+
+static void try_server_run(const char *tst_name, unsigned int port, size_t quota,
+			   unsigned int current_index, unsigned int rnext_index)
+{
+	struct tcp_counters tmp;
+	int sk;
+
+	sk = start_server(tst_name, port, quota, &tmp,
+			  current_index, rnext_index);
+	end_server(tst_name, sk, &tmp);
+}
+
+static void server_rotations(const char *tst_name, unsigned int port,
+			     size_t quota, unsigned int rotations,
+			     unsigned int current_index, unsigned int rnext_index)
+{
+	struct tcp_counters tmp;
+	unsigned int i;
+	int sk;
+
+	sk = start_server(tst_name, port, quota, &tmp,
+			  current_index, rnext_index);
+
+	for (i = current_index + 1; rotations > 0; i++, rotations--) {
+		ssize_t bytes;
+
+		if (i >= collection.nr_keys)
+			i = 0;
+		bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+		if (bytes != quota) {
+			test_fail("%s: server served: %zd", tst_name, bytes);
+			return;
+		}
+		verify_current_rnext(tst_name, sk,
+				     collection.keys[i].server_keyid, -1);
+		synchronize_threads(); /* verify current/rnext */
+	}
+	end_server(tst_name, sk, &tmp);
+}
+
+static int run_client(const char *tst_name, unsigned int port,
+		      unsigned int nr_keys, int current_index, int rnext_index,
+		      struct tcp_counters *before,
+		      const size_t msg_sz, const size_t msg_nr)
+{
+	int sk;
+
+	synchronize_threads(); /* 1: key collection initialized */
+	sk = key_collection_socket(false, port);
+
+	if (current_index >= 0 || rnext_index >= 0) {
+		int sndid = -1, rcvid = -1;
+
+		if (current_index >= 0)
+			sndid = collection.keys[current_index].client_keyid;
+		if (rnext_index >= 0)
+			rcvid = collection.keys[rnext_index].server_keyid;
+		if (test_set_key(sk, sndid, rcvid))
+			test_error("failed to set current/rnext keys");
+	}
+	if (before && test_get_tcp_counters(sk, before))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* 2: MKTs added => connect() */
+	if (test_connect_socket(sk, this_ip_dest, port++) <= 0)
+		test_error("failed to connect()");
+	if (current_index < 0)
+		current_index = nr_keys - 1;
+	if (rnext_index < 0)
+		rnext_index = nr_keys - 1;
+	collection.keys[current_index].used_on_client_tx = 1;
+	collection.keys[rnext_index].used_on_server_tx = 1;
+
+	synchronize_threads(); /* 3: accepted => send data */
+	if (test_client_verify(sk, msg_sz, msg_nr)) {
+		test_fail("verify failed");
+		close(sk);
+		if (before)
+			test_tcp_counters_free(before);
+		return -1;
+	}
+
+	return sk;
+}
+
+static int start_client(const char *tst_name, unsigned int port,
+			unsigned int nr_keys, int current_index, int rnext_index,
+			struct tcp_counters *before,
+			const size_t msg_sz, const size_t msg_nr)
+{
+	if (init_default_key_collection(nr_keys, true))
+		test_error("Failed to init the key collection");
+
+	return run_client(tst_name, port, nr_keys, current_index,
+			  rnext_index, before, msg_sz, msg_nr);
+}
+
+static void end_client(const char *tst_name, int sk, unsigned int nr_keys,
+		       int current_index, int rnext_index,
+		       struct tcp_counters *start)
+{
+	struct tcp_counters end;
+
+	/* Some application may become dependent on this kernel choice */
+	if (current_index < 0)
+		current_index = nr_keys - 1;
+	if (rnext_index < 0)
+		rnext_index = nr_keys - 1;
+	verify_current_rnext(tst_name, sk,
+			     collection.keys[current_index].client_keyid,
+			     collection.keys[rnext_index].server_keyid);
+	if (start && test_get_tcp_counters(sk, &end))
+		test_error("test_get_tcp_counters()");
+	verify_keys(tst_name, sk, false, false);
+	synchronize_threads(); /* 4: verify => closed */
+	close(sk);
+	if (start)
+		verify_counters(tst_name, false, false, start, &end);
+	synchronize_threads(); /* 5: counters */
+}
+
+static void try_unmatched_keys(int sk, int *rnext_index, unsigned int port)
+{
+	struct test_key *key;
+	unsigned int i = 0;
+	int err;
+
+	do {
+		key = &collection.keys[i];
+		if (!key->matches_server)
+			break;
+	} while (++i < collection.nr_keys);
+	if (key->matches_server)
+		test_error("all keys on client match the server");
+
+	err = test_add_key_cr(sk, key->password, key->len, wrong_addr,
+			      0, key->client_keyid, key->server_keyid,
+			      key->maclen, key->alg, 0, 0);
+	if (!err) {
+		test_fail("Added a key with non-matching ip-address for established sk");
+		return;
+	}
+	if (err == -EINVAL)
+		test_ok("Can't add a key with non-matching ip-address for established sk");
+	else
+		test_error("Failed to add a key");
+
+	err = test_add_key_cr(sk, key->password, key->len, this_ip_dest,
+			      test_vrf_ifindex,
+			      key->client_keyid, key->server_keyid,
+			      key->maclen, key->alg, 0, 0);
+	if (!err) {
+		test_fail("Added a key with non-matching VRF for established sk");
+		return;
+	}
+	if (err == -EINVAL)
+		test_ok("Can't add a key with non-matching VRF for established sk");
+	else
+		test_error("Failed to add a key");
+
+	for (i = 0; i < collection.nr_keys; i++) {
+		key = &collection.keys[i];
+		if (!key->matches_client)
+			break;
+	}
+	if (key->matches_client)
+		test_error("all keys on server match the client");
+	if (test_set_key(sk, -1, key->server_keyid))
+		test_error("Can't change the current key");
+	trace_ao_event_expect(TCP_AO_RNEXT_REQUEST, this_ip_addr, this_ip_dest,
+			      -1, port, 0, -1, -1, -1, -1, -1,
+			      -1, key->server_keyid, -1);
+	if (test_client_verify(sk, msg_len, nr_packets))
+		test_fail("verify failed");
+	*rnext_index = i;
+}
+
+static int client_non_matching(const char *tst_name, unsigned int port,
+			       unsigned int nr_keys,
+			       int current_index, int rnext_index,
+			       const size_t msg_sz, const size_t msg_nr)
+{
+	unsigned int i;
+
+	if (init_default_key_collection(nr_keys, true))
+		test_error("Failed to init the key collection");
+
+	for (i = 0; i < nr_keys; i++) {
+		/* key (0, 0) matches */
+		collection.keys[i].matches_client = !!((i + 3) % 4);
+		collection.keys[i].matches_server = !!((i + 2) % 4);
+		if (kernel_config_has(KCONFIG_NET_VRF))
+			collection.keys[i].matches_vrf = !!((i + 1) % 4);
+	}
+
+	return run_client(tst_name, port, nr_keys, current_index,
+			  rnext_index, NULL, msg_sz, msg_nr);
+}
+
+static void check_current_back(const char *tst_name, unsigned int port,
+			       unsigned int nr_keys,
+			       unsigned int current_index, unsigned int rnext_index,
+			       unsigned int rotate_to_index)
+{
+	struct tcp_counters tmp;
+	int sk;
+
+	sk = start_client(tst_name, port, nr_keys, current_index, rnext_index,
+			  &tmp, msg_len, nr_packets);
+	if (sk < 0)
+		return;
+	if (test_set_key(sk, collection.keys[rotate_to_index].client_keyid, -1))
+		test_error("Can't change the current key");
+	trace_ao_event_expect(TCP_AO_RNEXT_REQUEST, this_ip_dest, this_ip_addr,
+			      port, -1, 0, -1, -1, -1, -1, -1,
+			      collection.keys[rotate_to_index].client_keyid,
+			      collection.keys[current_index].client_keyid, -1);
+	if (test_client_verify(sk, msg_len, nr_packets))
+		test_fail("verify failed");
+	/* There is a race here: between setting the current_key with
+	 * setsockopt(TCP_AO_INFO) and starting to send some data - there
+	 * might have been a segment received with the desired
+	 * RNext_key set. In turn that would mean that the first outgoing
+	 * segment will have the desired current_key (flipped back).
+	 * Which is what the user/test wants. As it's racy, skip checking
+	 * the counters, yet check what are the resulting current/rnext
+	 * keys on both sides.
+	 */
+	collection.keys[rotate_to_index].skip_counters_checks = 1;
+
+	end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp);
+}
+
+static void roll_over_keys(const char *tst_name, unsigned int port,
+			   unsigned int nr_keys, unsigned int rotations,
+			   unsigned int current_index, unsigned int rnext_index)
+{
+	struct tcp_counters tmp;
+	unsigned int i;
+	int sk;
+
+	sk = start_client(tst_name, port, nr_keys, current_index, rnext_index,
+			  &tmp, msg_len, nr_packets);
+	if (sk < 0)
+		return;
+	for (i = rnext_index + 1; rotations > 0; i++, rotations--) {
+		if (i >= collection.nr_keys)
+			i = 0;
+		trace_ao_event_expect(TCP_AO_RNEXT_REQUEST,
+				this_ip_addr, this_ip_dest,
+				-1, port, 0, -1, -1, -1, -1, -1,
+				i == 0 ? -1 : collection.keys[i - 1].server_keyid,
+				collection.keys[i].server_keyid, -1);
+		if (test_set_key(sk, -1, collection.keys[i].server_keyid))
+			test_error("Can't change the Rnext key");
+		if (test_client_verify(sk, msg_len, nr_packets)) {
+			test_fail("verify failed");
+			close(sk);
+			test_tcp_counters_free(&tmp);
+			return;
+		}
+		verify_current_rnext(tst_name, sk, -1,
+				     collection.keys[i].server_keyid);
+		collection.keys[i].used_on_server_tx = 1;
+		synchronize_threads(); /* verify current/rnext */
+	}
+	end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp);
+}
+
+static void try_client_run(const char *tst_name, unsigned int port,
+			   unsigned int nr_keys, int current_index, int rnext_index)
+{
+	struct tcp_counters tmp;
+	int sk;
+
+	sk = start_client(tst_name, port, nr_keys, current_index, rnext_index,
+			  &tmp, msg_len, nr_packets);
+	if (sk < 0)
+		return;
+	end_client(tst_name, sk, nr_keys, current_index, rnext_index, &tmp);
+}
+
+static void try_client_match(const char *tst_name, unsigned int port,
+			     unsigned int nr_keys,
+			     int current_index, int rnext_index)
+{
+	int sk;
+
+	sk = client_non_matching(tst_name, port, nr_keys, current_index,
+				 rnext_index, msg_len, nr_packets);
+	if (sk < 0)
+		return;
+	try_unmatched_keys(sk, &rnext_index, port);
+	end_client(tst_name, sk, nr_keys, current_index, rnext_index, NULL);
+}
+
+static void *server_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+
+	setup_vrfs();
+	try_server_run("server: Check current/rnext keys unset before connect()",
+		       port++, quota, 19, 19);
+	try_server_run("server: Check current/rnext keys set before connect()",
+		       port++, quota, 10, 10);
+	try_server_run("server: Check current != rnext keys set before connect()",
+		       port++, quota, 5, 10);
+	try_server_run("server: Check current flapping back on peer's RnextKey request",
+		       port++, quota * 2, 5, 10);
+	server_rotations("server: Rotate over all different keys", port++,
+			 quota, 20, 0, 0);
+	try_server_run("server: Check accept() => established key matching",
+		       port++, quota * 2, 0, 0);
+
+	synchronize_threads(); /* don't race to exit: client exits */
+	return NULL;
+}
+
+static void check_established_socket(void)
+{
+	unsigned int port = test_server_port;
+
+	setup_vrfs();
+	try_client_run("client: Check current/rnext keys unset before connect()",
+		       port++, 20, -1, -1);
+	try_client_run("client: Check current/rnext keys set before connect()",
+		       port++, 20, 10, 10);
+	try_client_run("client: Check current != rnext keys set before connect()",
+		       port++, 20, 10, 5);
+	check_current_back("client: Check current flapping back on peer's RnextKey request",
+			   port++, 20, 10, 5, 2);
+	roll_over_keys("client: Rotate over all different keys", port++,
+		       20, 20, 0, 0);
+	try_client_match("client: Check connect() => established key matching",
+			 port++, 20, 0, 0);
+}
+
+static void *client_fn(void *arg)
+{
+	if (inet_pton(TEST_FAMILY, TEST_WRONG_IP, &wrong_addr) != 1)
+		test_error("Can't convert ip address %s", TEST_WRONG_IP);
+	check_closed_socket();
+	check_listen_socket();
+	check_established_socket();
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(121, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/aolib.h b/tools/testing/selftests/net/tcp_ao/lib/aolib.h
new file mode 100644
index 000000000000..ebb2899c12fe
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/aolib.h
@@ -0,0 +1,832 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * TCP-AO selftest library. Provides helpers to unshare network
+ * namespaces, create veth, assign ip addresses, set routes,
+ * manipulate socket options, read network counter and etc.
+ * Author: Dmitry Safonov <dima@arista.com>
+ */
+#ifndef _AOLIB_H_
+#define _AOLIB_H_
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <linux/snmp.h>
+#include <linux/tcp.h>
+#include <netinet/in.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "../../../../../include/linux/stringify.h"
+#include "../../../../../include/linux/bits.h"
+
+#ifndef SOL_TCP
+/* can't include <netinet/tcp.h> as including <linux/tcp.h> */
+# define SOL_TCP		6	/* TCP level */
+#endif
+
+/* Working around ksft, see the comment in lib/setup.c */
+extern void __test_msg(const char *buf);
+extern void __test_ok(const char *buf);
+extern void __test_fail(const char *buf);
+extern void __test_xfail(const char *buf);
+extern void __test_error(const char *buf);
+extern void __test_skip(const char *buf);
+
+static inline char *test_snprintf(const char *fmt, va_list vargs)
+{
+	char *ret = NULL;
+	size_t size = 0;
+	va_list tmp;
+	int n = 0;
+
+	va_copy(tmp, vargs);
+	n = vsnprintf(ret, size, fmt, tmp);
+	va_end(tmp);
+	if (n < 0)
+		return NULL;
+
+	size = n + 1;
+	ret = malloc(size);
+	if (!ret)
+		return NULL;
+
+	n = vsnprintf(ret, size, fmt, vargs);
+	if (n < 0 || n > size - 1) {
+		free(ret);
+		return NULL;
+	}
+	return ret;
+}
+
+static __printf(1, 2) inline char *test_sprintf(const char *fmt, ...)
+{
+	va_list vargs;
+	char *ret;
+
+	va_start(vargs, fmt);
+	ret = test_snprintf(fmt, vargs);
+	va_end(vargs);
+
+	return ret;
+}
+
+static __printf(2, 3) inline void __test_print(void (*fn)(const char *),
+					       const char *fmt, ...)
+{
+	va_list vargs;
+	char *msg;
+
+	va_start(vargs, fmt);
+	msg = test_snprintf(fmt, vargs);
+	va_end(vargs);
+
+	if (!msg)
+		return;
+
+	fn(msg);
+	free(msg);
+}
+
+#define test_print(fmt, ...)						\
+	__test_print(__test_msg, "%ld[%s:%u] " fmt "\n",		\
+		     syscall(SYS_gettid),				\
+		     __FILE__, __LINE__, ##__VA_ARGS__)
+
+#define test_ok(fmt, ...)						\
+	__test_print(__test_ok, fmt "\n", ##__VA_ARGS__)
+#define test_skip(fmt, ...)						\
+	__test_print(__test_skip, fmt "\n", ##__VA_ARGS__)
+#define test_xfail(fmt, ...)						\
+	__test_print(__test_xfail, fmt "\n", ##__VA_ARGS__)
+
+#define test_fail(fmt, ...)						\
+do {									\
+	if (errno)							\
+		__test_print(__test_fail, fmt ": %m\n", ##__VA_ARGS__);	\
+	else								\
+		__test_print(__test_fail, fmt "\n", ##__VA_ARGS__);	\
+	test_failed();							\
+} while (0)
+
+#define KSFT_FAIL  1
+#define test_error(fmt, ...)						\
+do {									\
+	if (errno)							\
+		__test_print(__test_error, "%ld[%s:%u] " fmt ": %m\n",	\
+			     syscall(SYS_gettid), __FILE__, __LINE__,	\
+			     ##__VA_ARGS__);				\
+	else								\
+		__test_print(__test_error, "%ld[%s:%u] " fmt "\n",	\
+			     syscall(SYS_gettid), __FILE__, __LINE__,	\
+			     ##__VA_ARGS__);				\
+	exit(KSFT_FAIL);						\
+} while (0)
+
+enum test_fault {
+	FAULT_TIMEOUT = 1,
+	FAULT_KEYREJECT,
+	FAULT_PREINSTALL_AO,
+	FAULT_PREINSTALL_MD5,
+	FAULT_POSTINSTALL,
+	FAULT_BUSY,
+	FAULT_CURRNEXT,
+	FAULT_FIXME,
+};
+typedef enum test_fault fault_t;
+
+enum test_needs_kconfig {
+	KCONFIG_NET_NS = 0,		/* required */
+	KCONFIG_VETH,			/* required */
+	KCONFIG_TCP_AO,			/* required */
+	KCONFIG_TCP_MD5,		/* optional, for TCP-MD5 features */
+	KCONFIG_NET_VRF,		/* optional, for L3/VRF testing */
+	KCONFIG_FTRACE,			/* optional, for tracepoints checks */
+	__KCONFIG_LAST__
+};
+extern bool kernel_config_has(enum test_needs_kconfig k);
+extern const char *tests_skip_reason[__KCONFIG_LAST__];
+static inline bool should_skip_test(const char *tst_name,
+				    enum test_needs_kconfig k)
+{
+	if (kernel_config_has(k))
+		return false;
+	test_skip("%s: %s", tst_name, tests_skip_reason[k]);
+	return true;
+}
+
+union tcp_addr {
+	struct in_addr a4;
+	struct in6_addr a6;
+};
+
+typedef void *(*thread_fn)(void *);
+extern void test_failed(void);
+extern void __test_init(unsigned int ntests, int family, unsigned int prefix,
+			union tcp_addr addr1, union tcp_addr addr2,
+			thread_fn peer1, thread_fn peer2);
+
+static inline void test_init2(unsigned int ntests,
+			      thread_fn peer1, thread_fn peer2,
+			      int family, unsigned int prefix,
+			      const char *addr1, const char *addr2)
+{
+	union tcp_addr taddr1, taddr2;
+
+	if (inet_pton(family, addr1, &taddr1) != 1)
+		test_error("Can't convert ip address %s", addr1);
+	if (inet_pton(family, addr2, &taddr2) != 1)
+		test_error("Can't convert ip address %s", addr2);
+
+	__test_init(ntests, family, prefix, taddr1, taddr2, peer1, peer2);
+}
+extern void test_add_destructor(void (*d)(void));
+extern void test_init_ftrace(int nsfd1, int nsfd2);
+extern int test_setup_tracing(void);
+
+/* To adjust optmem socket limit, approximately estimate a number,
+ * that is bigger than sizeof(struct tcp_ao_key).
+ */
+#define KERNEL_TCP_AO_KEY_SZ_ROUND_UP	300
+
+extern void test_set_optmem(size_t value);
+extern size_t test_get_optmem(void);
+
+extern const struct sockaddr_in6 addr_any6;
+extern const struct sockaddr_in addr_any4;
+
+#ifdef IPV6_TEST
+# define __TEST_CLIENT_IP(n)	("2001:db8:" __stringify(n) "::1")
+# define TEST_CLIENT_IP	__TEST_CLIENT_IP(1)
+# define TEST_WRONG_IP	"2001:db8:253::1"
+# define TEST_SERVER_IP	"2001:db8:254::1"
+# define TEST_NETWORK	"2001::"
+# define TEST_PREFIX	128
+# define TEST_FAMILY	AF_INET6
+# define SOCKADDR_ANY	addr_any6
+# define sockaddr_af	struct sockaddr_in6
+#else
+# define __TEST_CLIENT_IP(n)	("10.0." __stringify(n) ".1")
+# define TEST_CLIENT_IP	__TEST_CLIENT_IP(1)
+# define TEST_WRONG_IP	"10.0.253.1"
+# define TEST_SERVER_IP	"10.0.254.1"
+# define TEST_NETWORK	"10.0.0.0"
+# define TEST_PREFIX	32
+# define TEST_FAMILY	AF_INET
+# define SOCKADDR_ANY	addr_any4
+# define sockaddr_af	struct sockaddr_in
+#endif
+
+static inline union tcp_addr gen_tcp_addr(union tcp_addr net, size_t n)
+{
+	union tcp_addr ret = net;
+
+#ifdef IPV6_TEST
+	ret.a6.s6_addr32[3] = htonl(n & (BIT(32) - 1));
+	ret.a6.s6_addr32[2] = htonl((n >> 32) & (BIT(32) - 1));
+#else
+	ret.a4.s_addr = htonl(ntohl(net.a4.s_addr) + n);
+#endif
+
+	return ret;
+}
+
+static inline void tcp_addr_to_sockaddr_in(void *dest,
+					   const union tcp_addr *src,
+					   unsigned int port)
+{
+	sockaddr_af *out = dest;
+
+	memset(out, 0, sizeof(*out));
+#ifdef IPV6_TEST
+	out->sin6_family = AF_INET6;
+	out->sin6_port   = port;
+	out->sin6_addr   = src->a6;
+#else
+	out->sin_family  = AF_INET;
+	out->sin_port    = port;
+	out->sin_addr    = src->a4;
+#endif
+}
+
+static inline void test_init(unsigned int ntests,
+			     thread_fn peer1, thread_fn peer2)
+{
+	test_init2(ntests, peer1, peer2, TEST_FAMILY, TEST_PREFIX,
+			TEST_SERVER_IP, TEST_CLIENT_IP);
+}
+extern void synchronize_threads(void);
+extern void switch_ns(int fd);
+extern int switch_save_ns(int fd);
+extern void switch_close_ns(int fd);
+
+extern __thread union tcp_addr this_ip_addr;
+extern __thread union tcp_addr this_ip_dest;
+extern int test_family;
+
+extern void randomize_buffer(void *buf, size_t buflen);
+extern __printf(3, 4) int test_echo(const char *fname, bool append,
+				    const char *fmt, ...);
+
+extern int open_netns(void);
+extern int unshare_open_netns(void);
+extern const char veth_name[];
+extern int add_veth(const char *name, int nsfda, int nsfdb);
+extern int add_vrf(const char *name, uint32_t tabid, int ifindex, int nsfd);
+extern int ip_addr_add(const char *intf, int family,
+		       union tcp_addr addr, uint8_t prefix);
+extern int ip_route_add(const char *intf, int family,
+			union tcp_addr src, union tcp_addr dst);
+extern int ip_route_add_vrf(const char *intf, int family,
+			    union tcp_addr src, union tcp_addr dst,
+			    uint8_t vrf);
+extern int link_set_up(const char *intf);
+
+extern const unsigned int test_server_port;
+extern int test_wait_fd(int sk, time_t sec, bool write);
+extern int __test_connect_socket(int sk, const char *device,
+				 void *addr, size_t addr_sz, bool async);
+extern int __test_listen_socket(int backlog, void *addr, size_t addr_sz);
+
+static inline int test_listen_socket(const union tcp_addr taddr,
+				     unsigned int port, int backlog)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &taddr, htons(port));
+	return __test_listen_socket(backlog, (void *)&addr, sizeof(addr));
+}
+
+/*
+ * In order for selftests to work under CONFIG_CRYPTO_FIPS=y,
+ * the password should be loger than 14 bytes, see hmac_setkey()
+ */
+#define TEST_TCP_AO_MINKEYLEN	14
+#define DEFAULT_TEST_PASSWORD	"In this hour, I do not believe that any darkness will endure."
+
+#ifndef DEFAULT_TEST_ALGO
+#define DEFAULT_TEST_ALGO	"cmac(aes128)"
+#endif
+
+#ifdef IPV6_TEST
+#define DEFAULT_TEST_PREFIX	128
+#else
+#define DEFAULT_TEST_PREFIX	32
+#endif
+
+/*
+ * Timeout on syscalls where failure is not expected.
+ * You may want to rise it if the test machine is very busy.
+ */
+#ifndef TEST_TIMEOUT_SEC
+#define TEST_TIMEOUT_SEC	5
+#endif
+
+/*
+ * Timeout on connect() where a failure is expected.
+ * If set to 0 - kernel will try to retransmit SYN number of times, set in
+ * /proc/sys/net/ipv4/tcp_syn_retries
+ * By default set to 1 to make tests pass faster on non-busy machine.
+ * [in process of removal, don't use in new tests]
+ */
+#ifndef TEST_RETRANSMIT_SEC
+#define TEST_RETRANSMIT_SEC	1
+#endif
+
+static inline int _test_connect_socket(int sk, const union tcp_addr taddr,
+				       unsigned int port, bool async)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &taddr, htons(port));
+	return __test_connect_socket(sk, veth_name,
+				     (void *)&addr, sizeof(addr), async);
+}
+
+static inline int test_connect_socket(int sk, const union tcp_addr taddr,
+				      unsigned int port)
+{
+	return _test_connect_socket(sk, taddr, port, false);
+}
+
+extern int __test_set_md5(int sk, void *addr, size_t addr_sz,
+			  uint8_t prefix, int vrf, const char *password);
+static inline int test_set_md5(int sk, const union tcp_addr in_addr,
+			       uint8_t prefix, int vrf, const char *password)
+{
+	sockaddr_af addr;
+
+	if (prefix > DEFAULT_TEST_PREFIX)
+		prefix = DEFAULT_TEST_PREFIX;
+
+	tcp_addr_to_sockaddr_in(&addr, &in_addr, 0);
+	return __test_set_md5(sk, (void *)&addr, sizeof(addr),
+			prefix, vrf, password);
+}
+
+extern int test_prepare_key_sockaddr(struct tcp_ao_add *ao, const char *alg,
+		void *addr, size_t addr_sz, bool set_current, bool set_rnext,
+		uint8_t prefix, uint8_t vrf,
+		uint8_t sndid, uint8_t rcvid, uint8_t maclen,
+		uint8_t keyflags, uint8_t keylen, const char *key);
+
+static inline int test_prepare_key(struct tcp_ao_add *ao,
+		const char *alg, union tcp_addr taddr,
+		bool set_current, bool set_rnext,
+		uint8_t prefix, uint8_t vrf,
+		uint8_t sndid, uint8_t rcvid, uint8_t maclen,
+		uint8_t keyflags, uint8_t keylen, const char *key)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &taddr, 0);
+	return test_prepare_key_sockaddr(ao, alg, (void *)&addr, sizeof(addr),
+			set_current, set_rnext, prefix, vrf, sndid, rcvid,
+			maclen, keyflags, keylen, key);
+}
+
+static inline int test_prepare_def_key(struct tcp_ao_add *ao,
+		const char *key, uint8_t keyflags,
+		union tcp_addr in_addr, uint8_t prefix, uint8_t vrf,
+		uint8_t sndid, uint8_t rcvid)
+{
+	if (prefix > DEFAULT_TEST_PREFIX)
+		prefix = DEFAULT_TEST_PREFIX;
+
+	return test_prepare_key(ao, DEFAULT_TEST_ALGO, in_addr, false, false,
+				prefix, vrf, sndid, rcvid, 0, keyflags,
+				strlen(key), key);
+}
+
+extern int test_get_one_ao(int sk, struct tcp_ao_getsockopt *out,
+			   void *addr, size_t addr_sz,
+			   uint8_t prefix, uint8_t sndid, uint8_t rcvid);
+extern int test_get_ao_info(int sk, struct tcp_ao_info_opt *out);
+extern int test_set_ao_info(int sk, struct tcp_ao_info_opt *in);
+extern int test_cmp_getsockopt_setsockopt(const struct tcp_ao_add *a,
+					  const struct tcp_ao_getsockopt *b);
+extern int test_cmp_getsockopt_setsockopt_ao(const struct tcp_ao_info_opt *a,
+					     const struct tcp_ao_info_opt *b);
+
+static inline int test_verify_socket_key(int sk, struct tcp_ao_add *key)
+{
+	struct tcp_ao_getsockopt key2 = {};
+	int err;
+
+	err = test_get_one_ao(sk, &key2, &key->addr, sizeof(key->addr),
+			      key->prefix, key->sndid, key->rcvid);
+	if (err)
+		return err;
+
+	return test_cmp_getsockopt_setsockopt(key, &key2);
+}
+
+static inline int test_add_key_vrf(int sk,
+				   const char *key, uint8_t keyflags,
+				   union tcp_addr in_addr, uint8_t prefix,
+				   uint8_t vrf, uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_add tmp = {};
+	int err;
+
+	err = test_prepare_def_key(&tmp, key, keyflags, in_addr, prefix,
+				   vrf, sndid, rcvid);
+	if (err)
+		return err;
+
+	err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp));
+	if (err < 0)
+		return -errno;
+
+	return test_verify_socket_key(sk, &tmp);
+}
+
+static inline int test_add_key(int sk, const char *key,
+			      union tcp_addr in_addr, uint8_t prefix,
+			      uint8_t sndid, uint8_t rcvid)
+{
+	return test_add_key_vrf(sk, key, 0, in_addr, prefix, 0, sndid, rcvid);
+}
+
+static inline int test_verify_socket_ao(int sk, struct tcp_ao_info_opt *ao)
+{
+	struct tcp_ao_info_opt ao2 = {};
+	int err;
+
+	err = test_get_ao_info(sk, &ao2);
+	if (err)
+		return err;
+
+	return test_cmp_getsockopt_setsockopt_ao(ao, &ao2);
+}
+
+static inline int test_set_ao_flags(int sk, bool ao_required, bool accept_icmps)
+{
+	struct tcp_ao_info_opt ao = {};
+	int err;
+
+	err = test_get_ao_info(sk, &ao);
+	/* Maybe ao_info wasn't allocated yet */
+	if (err && err != -ENOENT)
+		return err;
+
+	ao.ao_required = !!ao_required;
+	ao.accept_icmps = !!accept_icmps;
+	err = test_set_ao_info(sk, &ao);
+	if (err)
+		return err;
+
+	return test_verify_socket_ao(sk, &ao);
+}
+
+extern ssize_t test_server_run(int sk, ssize_t quota, time_t timeout_sec);
+extern int test_client_verify(int sk, const size_t msg_len, const size_t nr);
+
+struct tcp_ao_key_counters {
+	uint8_t sndid;
+	uint8_t rcvid;
+	uint64_t pkt_good;
+	uint64_t pkt_bad;
+};
+
+struct tcp_ao_counters {
+	/* per-netns */
+	uint64_t netns_ao_good;
+	uint64_t netns_ao_bad;
+	uint64_t netns_ao_key_not_found;
+	uint64_t netns_ao_required;
+	uint64_t netns_ao_dropped_icmp;
+	/* per-socket */
+	uint64_t ao_info_pkt_good;
+	uint64_t ao_info_pkt_bad;
+	uint64_t ao_info_pkt_key_not_found;
+	uint64_t ao_info_pkt_ao_required;
+	uint64_t ao_info_pkt_dropped_icmp;
+	/* per-key */
+	size_t nr_keys;
+	struct tcp_ao_key_counters *key_cnts;
+};
+
+struct tcp_counters {
+	struct tcp_ao_counters ao;
+	uint64_t netns_md5_notfound;
+	uint64_t netns_md5_unexpected;
+	uint64_t netns_md5_failure;
+};
+
+extern int test_get_tcp_counters(int sk, struct tcp_counters *out);
+
+#define TEST_CNT_KEY_GOOD		BIT(0)
+#define TEST_CNT_KEY_BAD		BIT(1)
+#define TEST_CNT_SOCK_GOOD		BIT(2)
+#define TEST_CNT_SOCK_BAD		BIT(3)
+#define TEST_CNT_SOCK_KEY_NOT_FOUND	BIT(4)
+#define TEST_CNT_SOCK_AO_REQUIRED	BIT(5)
+#define TEST_CNT_SOCK_DROPPED_ICMP	BIT(6)
+#define TEST_CNT_NS_GOOD		BIT(7)
+#define TEST_CNT_NS_BAD			BIT(8)
+#define TEST_CNT_NS_KEY_NOT_FOUND	BIT(9)
+#define TEST_CNT_NS_AO_REQUIRED		BIT(10)
+#define TEST_CNT_NS_DROPPED_ICMP	BIT(11)
+#define TEST_CNT_NS_MD5_NOT_FOUND	BIT(12)
+#define TEST_CNT_NS_MD5_UNEXPECTED	BIT(13)
+#define TEST_CNT_NS_MD5_FAILURE		BIT(14)
+typedef uint16_t test_cnt;
+
+#define _for_each_counter(f)						\
+do {									\
+	/* per-netns */							\
+	f(ao.netns_ao_good,		TEST_CNT_NS_GOOD);		\
+	f(ao.netns_ao_bad,		TEST_CNT_NS_BAD);		\
+	f(ao.netns_ao_key_not_found,	TEST_CNT_NS_KEY_NOT_FOUND);	\
+	f(ao.netns_ao_required,		TEST_CNT_NS_AO_REQUIRED);	\
+	f(ao.netns_ao_dropped_icmp,	TEST_CNT_NS_DROPPED_ICMP);	\
+	/* per-socket */						\
+	f(ao.ao_info_pkt_good,		TEST_CNT_SOCK_GOOD);		\
+	f(ao.ao_info_pkt_bad,		TEST_CNT_SOCK_BAD);		\
+	f(ao.ao_info_pkt_key_not_found,	TEST_CNT_SOCK_KEY_NOT_FOUND);	\
+	f(ao.ao_info_pkt_ao_required,	TEST_CNT_SOCK_AO_REQUIRED);	\
+	f(ao.ao_info_pkt_dropped_icmp,	TEST_CNT_SOCK_DROPPED_ICMP);	\
+	/* non-AO */							\
+	f(netns_md5_notfound,		TEST_CNT_NS_MD5_NOT_FOUND);	\
+	f(netns_md5_unexpected,		TEST_CNT_NS_MD5_UNEXPECTED);	\
+	f(netns_md5_failure,		TEST_CNT_NS_MD5_FAILURE);	\
+} while (0)
+
+#define TEST_CNT_AO_GOOD		(TEST_CNT_SOCK_GOOD | TEST_CNT_NS_GOOD)
+#define TEST_CNT_AO_BAD			(TEST_CNT_SOCK_BAD | TEST_CNT_NS_BAD)
+#define TEST_CNT_AO_KEY_NOT_FOUND	(TEST_CNT_SOCK_KEY_NOT_FOUND | \
+					 TEST_CNT_NS_KEY_NOT_FOUND)
+#define TEST_CNT_AO_REQUIRED		(TEST_CNT_SOCK_AO_REQUIRED | \
+					 TEST_CNT_NS_AO_REQUIRED)
+#define TEST_CNT_AO_DROPPED_ICMP	(TEST_CNT_SOCK_DROPPED_ICMP | \
+					 TEST_CNT_NS_DROPPED_ICMP)
+#define TEST_CNT_GOOD			(TEST_CNT_KEY_GOOD | TEST_CNT_AO_GOOD)
+#define TEST_CNT_BAD			(TEST_CNT_KEY_BAD | TEST_CNT_AO_BAD)
+
+extern test_cnt test_cmp_counters(struct tcp_counters *before,
+				  struct tcp_counters *after);
+extern int test_assert_counters_sk(const char *tst_name,
+		struct tcp_counters *before, struct tcp_counters *after,
+		test_cnt expected);
+extern int test_assert_counters_key(const char *tst_name,
+		struct tcp_ao_counters *before, struct tcp_ao_counters *after,
+		test_cnt expected, int sndid, int rcvid);
+extern void test_tcp_counters_free(struct tcp_counters *cnts);
+
+/*
+ * Polling for netns and socket counters during select()/connect() and also
+ * client/server messaging. Instead of constant timeout on underlying select(),
+ * check the counters and return early. This allows to pass the tests where
+ * timeout is expected without waiting for that fixing timeout (tests speed-up).
+ * Previously shorter timeouts were used for tests expecting to time out,
+ * but that leaded to sporadic false positives on counter checks failures,
+ * as one second timeouts aren't enough for TCP retransmit.
+ *
+ * Two sides of the socketpair (client/server) should synchronize failures
+ * using a shared variable *err, so that they can detect the other side's
+ * failure.
+ */
+extern int test_skpair_wait_poll(int sk, bool write, test_cnt cond,
+				 volatile int *err);
+extern int _test_skpair_connect_poll(int sk, const char *device,
+				     void *addr, size_t addr_sz,
+				     test_cnt cond, volatile int *err);
+static inline int test_skpair_connect_poll(int sk, const union tcp_addr taddr,
+					   unsigned int port,
+					   test_cnt cond, volatile int *err)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &taddr, htons(port));
+	return _test_skpair_connect_poll(sk, veth_name,
+					 (void *)&addr, sizeof(addr), cond, err);
+}
+
+extern int test_skpair_client(int sk, const size_t msg_len, const size_t nr,
+			      test_cnt cond, volatile int *err);
+extern int test_skpair_server(int sk, ssize_t quota,
+			      test_cnt cond, volatile int *err);
+
+/*
+ * Frees buffers allocated in test_get_tcp_counters().
+ * The function doesn't expect new keys or keys removed between calls
+ * to test_get_tcp_counters(). Check key counters manually if they
+ * may change.
+ */
+static inline int test_assert_counters(const char *tst_name,
+				       struct tcp_counters *before,
+				       struct tcp_counters *after,
+				       test_cnt expected)
+{
+	int ret;
+
+	ret = test_assert_counters_sk(tst_name, before, after, expected);
+	if (ret)
+		goto out;
+	ret = test_assert_counters_key(tst_name, &before->ao, &after->ao,
+				       expected, -1, -1);
+out:
+	test_tcp_counters_free(before);
+	test_tcp_counters_free(after);
+	return ret;
+}
+
+struct netstat;
+extern struct netstat *netstat_read(void);
+extern void netstat_free(struct netstat *ns);
+extern void netstat_print_diff(struct netstat *nsa, struct netstat *nsb);
+extern uint64_t netstat_get(struct netstat *ns,
+			    const char *name, bool *not_found);
+
+static inline uint64_t netstat_get_one(const char *name, bool *not_found)
+{
+	struct netstat *ns = netstat_read();
+	uint64_t ret;
+
+	ret = netstat_get(ns, name, not_found);
+
+	netstat_free(ns);
+	return ret;
+}
+
+struct tcp_sock_queue {
+	uint32_t seq;
+	void *buf;
+};
+
+struct tcp_sock_state {
+	struct tcp_info info;
+	struct tcp_repair_window trw;
+	struct tcp_sock_queue out;
+	int outq_len;		/* output queue size (not sent + not acked) */
+	int outq_nsd_len;	/* output queue size (not sent only) */
+	struct tcp_sock_queue in;
+	int inq_len;
+	int mss;
+	int timestamp;
+};
+
+extern void __test_sock_checkpoint(int sk, struct tcp_sock_state *state,
+				   void *addr, size_t addr_size);
+static inline void test_sock_checkpoint(int sk, struct tcp_sock_state *state,
+					sockaddr_af *saddr)
+{
+	__test_sock_checkpoint(sk, state, saddr, sizeof(*saddr));
+}
+extern void test_ao_checkpoint(int sk, struct tcp_ao_repair *state);
+extern void __test_sock_restore(int sk, const char *device,
+				struct tcp_sock_state *state,
+				void *saddr, void *daddr, size_t addr_size);
+static inline void test_sock_restore(int sk, struct tcp_sock_state *state,
+				     sockaddr_af *saddr,
+				     const union tcp_addr daddr,
+				     unsigned int dport)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &daddr, htons(dport));
+	__test_sock_restore(sk, veth_name, state, saddr, &addr, sizeof(addr));
+}
+extern void test_ao_restore(int sk, struct tcp_ao_repair *state);
+extern void test_sock_state_free(struct tcp_sock_state *state);
+extern void test_enable_repair(int sk);
+extern void test_disable_repair(int sk);
+extern void test_kill_sk(int sk);
+static inline int test_add_repaired_key(int sk,
+					const char *key, uint8_t keyflags,
+					union tcp_addr in_addr, uint8_t prefix,
+					uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_add tmp = {};
+	int err;
+
+	err = test_prepare_def_key(&tmp, key, keyflags, in_addr, prefix,
+				   0, sndid, rcvid);
+	if (err)
+		return err;
+
+	tmp.set_current = 1;
+	tmp.set_rnext = 1;
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp)) < 0)
+		return -errno;
+
+	return test_verify_socket_key(sk, &tmp);
+}
+
+#define DEFAULT_FTRACE_BUFFER_KB	10000
+#define DEFAULT_TRACER_LINES_ARR	200
+struct test_ftracer;
+extern uint64_t ns_cookie1, ns_cookie2;
+
+enum ftracer_op {
+	FTRACER_LINE_DISCARD = 0,
+	FTRACER_LINE_PRESERVE,
+	FTRACER_EXIT,
+};
+
+extern struct test_ftracer *create_ftracer(const char *name,
+		enum ftracer_op (*process_line)(const char *line),
+		void (*destructor)(struct test_ftracer *tracer),
+		bool (*expecting_more)(void),
+		size_t lines_buf_sz, size_t buffer_size_kb);
+extern int setup_trace_event(struct test_ftracer *tracer,
+			     const char *event, const char *filter);
+extern void destroy_ftracer(struct test_ftracer *tracer);
+extern const size_t tracer_get_savedlines_nr(struct test_ftracer *tracer);
+extern const char **tracer_get_savedlines(struct test_ftracer *tracer);
+
+enum trace_events {
+	/* TCP_HASH_EVENT */
+	TCP_HASH_BAD_HEADER = 0,
+	TCP_HASH_MD5_REQUIRED,
+	TCP_HASH_MD5_UNEXPECTED,
+	TCP_HASH_MD5_MISMATCH,
+	TCP_HASH_AO_REQUIRED,
+	/* TCP_AO_EVENT */
+	TCP_AO_HANDSHAKE_FAILURE,
+	TCP_AO_WRONG_MACLEN,
+	TCP_AO_MISMATCH,
+	TCP_AO_KEY_NOT_FOUND,
+	TCP_AO_RNEXT_REQUEST,
+	/* TCP_AO_EVENT_SK */
+	TCP_AO_SYNACK_NO_KEY,
+	/* TCP_AO_EVENT_SNE */
+	TCP_AO_SND_SNE_UPDATE,
+	TCP_AO_RCV_SNE_UPDATE,
+	__MAX_TRACE_EVENTS
+};
+
+extern int __trace_event_expect(enum trace_events type, int family,
+				union tcp_addr src, union tcp_addr dst,
+				int src_port, int dst_port, int L3index,
+				int fin, int syn, int rst, int psh, int ack,
+				int keyid, int rnext, int maclen, int sne);
+
+static inline void trace_hash_event_expect(enum trace_events type,
+				union tcp_addr src, union tcp_addr dst,
+				int src_port, int dst_port, int L3index,
+				int fin, int syn, int rst, int psh, int ack)
+{
+	int err;
+
+	err = __trace_event_expect(type, TEST_FAMILY, src, dst,
+				   src_port, dst_port, L3index,
+				   fin, syn, rst, psh, ack,
+				   -1, -1, -1, -1);
+	if (err)
+		test_error("Couldn't add a trace event: %d", err);
+}
+
+static inline void trace_ao_event_expect(enum trace_events type,
+				union tcp_addr src, union tcp_addr dst,
+				int src_port, int dst_port, int L3index,
+				int fin, int syn, int rst, int psh, int ack,
+				int keyid, int rnext, int maclen)
+{
+	int err;
+
+	err = __trace_event_expect(type, TEST_FAMILY, src, dst,
+				   src_port, dst_port, L3index,
+				   fin, syn, rst, psh, ack,
+				   keyid, rnext, maclen, -1);
+	if (err)
+		test_error("Couldn't add a trace event: %d", err);
+}
+
+static inline void trace_ao_event_sk_expect(enum trace_events type,
+				union tcp_addr src, union tcp_addr dst,
+				int src_port, int dst_port,
+				int keyid, int rnext)
+{
+	int err;
+
+	err = __trace_event_expect(type, TEST_FAMILY, src, dst,
+				   src_port, dst_port, -1,
+				   -1, -1, -1, -1, -1,
+				   keyid, rnext, -1, -1);
+	if (err)
+		test_error("Couldn't add a trace event: %d", err);
+}
+
+static inline void trace_ao_event_sne_expect(enum trace_events type,
+				union tcp_addr src, union tcp_addr dst,
+				int src_port, int dst_port, int sne)
+{
+	int err;
+
+	err = __trace_event_expect(type, TEST_FAMILY, src, dst,
+				   src_port, dst_port, -1,
+				   -1, -1, -1, -1, -1,
+				   -1, -1, -1, sne);
+	if (err)
+		test_error("Couldn't add a trace event: %d", err);
+}
+
+extern int setup_aolib_ftracer(void);
+
+#endif /* _AOLIB_H_ */
diff --git a/tools/testing/selftests/net/tcp_ao/lib/ftrace-tcp.c b/tools/testing/selftests/net/tcp_ao/lib/ftrace-tcp.c
new file mode 100644
index 000000000000..27403f875054
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/ftrace-tcp.c
@@ -0,0 +1,556 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <pthread.h>
+#include "aolib.h"
+
+static const char *trace_event_names[__MAX_TRACE_EVENTS] = {
+	/* TCP_HASH_EVENT */
+	"tcp_hash_bad_header",
+	"tcp_hash_md5_required",
+	"tcp_hash_md5_unexpected",
+	"tcp_hash_md5_mismatch",
+	"tcp_hash_ao_required",
+	/* TCP_AO_EVENT */
+	"tcp_ao_handshake_failure",
+	"tcp_ao_wrong_maclen",
+	"tcp_ao_mismatch",
+	"tcp_ao_key_not_found",
+	"tcp_ao_rnext_request",
+	/* TCP_AO_EVENT_SK */
+	"tcp_ao_synack_no_key",
+	/* TCP_AO_EVENT_SNE */
+	"tcp_ao_snd_sne_update",
+	"tcp_ao_rcv_sne_update"
+};
+
+struct expected_trace_point {
+	/* required */
+	enum trace_events type;
+	int family;
+	union tcp_addr src;
+	union tcp_addr dst;
+
+	/* optional */
+	int src_port;
+	int dst_port;
+	int L3index;
+
+	int fin;
+	int syn;
+	int rst;
+	int psh;
+	int ack;
+
+	int keyid;
+	int rnext;
+	int maclen;
+	int sne;
+
+	size_t matched;
+};
+
+static struct expected_trace_point *exp_tps;
+static size_t exp_tps_nr;
+static size_t exp_tps_size;
+static pthread_mutex_t exp_tps_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+int __trace_event_expect(enum trace_events type, int family,
+			 union tcp_addr src, union tcp_addr dst,
+			 int src_port, int dst_port, int L3index,
+			 int fin, int syn, int rst, int psh, int ack,
+			 int keyid, int rnext, int maclen, int sne)
+{
+	struct expected_trace_point new_tp = {
+		.type           = type,
+		.family         = family,
+		.src            = src,
+		.dst            = dst,
+		.src_port       = src_port,
+		.dst_port       = dst_port,
+		.L3index        = L3index,
+		.fin            = fin,
+		.syn            = syn,
+		.rst            = rst,
+		.psh            = psh,
+		.ack            = ack,
+		.keyid          = keyid,
+		.rnext          = rnext,
+		.maclen         = maclen,
+		.sne            = sne,
+		.matched        = 0,
+	};
+	int ret = 0;
+
+	if (!kernel_config_has(KCONFIG_FTRACE))
+		return 0;
+
+	pthread_mutex_lock(&exp_tps_mutex);
+	if (exp_tps_nr == exp_tps_size) {
+		struct expected_trace_point *tmp;
+
+		if (exp_tps_size == 0)
+			exp_tps_size = 10;
+		else
+			exp_tps_size = exp_tps_size * 1.6;
+
+		tmp = reallocarray(exp_tps, exp_tps_size, sizeof(exp_tps[0]));
+		if (!tmp) {
+			ret = -ENOMEM;
+			goto out;
+		}
+		exp_tps = tmp;
+	}
+	exp_tps[exp_tps_nr] = new_tp;
+	exp_tps_nr++;
+out:
+	pthread_mutex_unlock(&exp_tps_mutex);
+	return ret;
+}
+
+static void free_expected_events(void)
+{
+	/* We're from the process destructor - not taking the mutex */
+	exp_tps_size = 0;
+	exp_tps = NULL;
+	free(exp_tps);
+}
+
+struct trace_point {
+	int family;
+	union tcp_addr src;
+	union tcp_addr dst;
+	unsigned int src_port;
+	unsigned int dst_port;
+	int L3index;
+	unsigned int fin:1,
+		     syn:1,
+		     rst:1,
+		     psh:1,
+		     ack:1;
+
+	unsigned int keyid;
+	unsigned int rnext;
+	unsigned int maclen;
+
+	unsigned int sne;
+};
+
+static bool lookup_expected_event(int event_type, struct trace_point *e)
+{
+	size_t i;
+
+	pthread_mutex_lock(&exp_tps_mutex);
+	for (i = 0; i < exp_tps_nr; i++) {
+		struct expected_trace_point *p = &exp_tps[i];
+		size_t sk_size;
+
+		if (p->type != event_type)
+			continue;
+		if (p->family != e->family)
+			continue;
+		if (p->family == AF_INET)
+			sk_size = sizeof(p->src.a4);
+		else
+			sk_size = sizeof(p->src.a6);
+		if (memcmp(&p->src, &e->src, sk_size))
+			continue;
+		if (memcmp(&p->dst, &e->dst, sk_size))
+			continue;
+		if (p->src_port >= 0 && p->src_port != e->src_port)
+			continue;
+		if (p->dst_port >= 0 && p->dst_port != e->dst_port)
+			continue;
+		if (p->L3index >= 0 && p->L3index != e->L3index)
+			continue;
+
+		if (p->fin >= 0 && p->fin != e->fin)
+			continue;
+		if (p->syn >= 0 && p->syn != e->syn)
+			continue;
+		if (p->rst >= 0 && p->rst != e->rst)
+			continue;
+		if (p->psh >= 0 && p->psh != e->psh)
+			continue;
+		if (p->ack >= 0 && p->ack != e->ack)
+			continue;
+
+		if (p->keyid >= 0 && p->keyid != e->keyid)
+			continue;
+		if (p->rnext >= 0 && p->rnext != e->rnext)
+			continue;
+		if (p->maclen >= 0 && p->maclen != e->maclen)
+			continue;
+		if (p->sne >= 0 && p->sne != e->sne)
+			continue;
+		p->matched++;
+		pthread_mutex_unlock(&exp_tps_mutex);
+		return true;
+	}
+	pthread_mutex_unlock(&exp_tps_mutex);
+	return false;
+}
+
+static int check_event_type(const char *line)
+{
+	size_t i;
+
+	/*
+	 * This should have been a set or hashmap, but it's a selftest,
+	 * so... KISS.
+	 */
+	for (i = 0; i < __MAX_TRACE_EVENTS; i++) {
+		if (!strncmp(trace_event_names[i], line, strlen(trace_event_names[i])))
+			return i;
+	}
+	return -1;
+}
+
+static bool event_has_flags(enum trace_events event)
+{
+	switch (event) {
+	case TCP_HASH_BAD_HEADER:
+	case TCP_HASH_MD5_REQUIRED:
+	case TCP_HASH_MD5_UNEXPECTED:
+	case TCP_HASH_MD5_MISMATCH:
+	case TCP_HASH_AO_REQUIRED:
+	case TCP_AO_HANDSHAKE_FAILURE:
+	case TCP_AO_WRONG_MACLEN:
+	case TCP_AO_MISMATCH:
+	case TCP_AO_KEY_NOT_FOUND:
+	case TCP_AO_RNEXT_REQUEST:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int tracer_ip_split(int family, char *src, char **addr, char **port)
+{
+	char *p;
+
+	if (family == AF_INET) {
+		/* fomat is <addr>:port, i.e.: 10.0.254.1:7015 */
+		*addr = src;
+		p = strchr(src, ':');
+		if (!p) {
+			test_print("Couldn't parse trace event addr:port %s", src);
+			return -EINVAL;
+		}
+		*p++ = '\0';
+		*port = p;
+		return 0;
+	}
+	if (family != AF_INET6)
+		return -EAFNOSUPPORT;
+
+	/* format is [<addr>]:port, i.e.: [2001:db8:254::1]:7013 */
+	*addr = strchr(src, '[');
+	p = strchr(src, ']');
+
+	if (!p || !*addr) {
+		test_print("Couldn't parse trace event [addr]:port %s", src);
+		return -EINVAL;
+	}
+
+	*addr = *addr + 1;      /* '[' */
+	*p++ = '\0';            /* ']' */
+	if (*p != ':') {
+		test_print("Couldn't parse trace event :port %s", p);
+		return -EINVAL;
+	}
+	*p++ = '\0';            /* ':' */
+	*port = p;
+	return 0;
+}
+
+static int tracer_scan_address(int family, char *src,
+			       union tcp_addr *dst, unsigned int *port)
+{
+	char *addr, *port_str;
+	int ret;
+
+	ret = tracer_ip_split(family, src, &addr, &port_str);
+	if (ret)
+		return ret;
+
+	if (inet_pton(family, addr, dst) != 1) {
+		test_print("Couldn't parse trace event addr %s", addr);
+		return -EINVAL;
+	}
+	errno = 0;
+	*port = (unsigned int)strtoul(port_str, NULL, 10);
+	if (errno != 0) {
+		test_print("Couldn't parse trace event port %s", port_str);
+		return -errno;
+	}
+	return 0;
+}
+
+static int tracer_scan_event(const char *line, enum trace_events event,
+			     struct trace_point *out)
+{
+	char *src = NULL, *dst = NULL, *family = NULL;
+	char fin, syn, rst, psh, ack;
+	int nr_matched, ret = 0;
+	uint64_t netns_cookie;
+
+	switch (event) {
+	case TCP_HASH_BAD_HEADER:
+	case TCP_HASH_MD5_REQUIRED:
+	case TCP_HASH_MD5_UNEXPECTED:
+	case TCP_HASH_MD5_MISMATCH:
+	case TCP_HASH_AO_REQUIRED: {
+		nr_matched = sscanf(line, "%*s net=%" PRIu64 " state%*s family=%ms src=%ms dest=%ms L3index=%d [%c%c%c%c%c]",
+				    &netns_cookie, &family,
+				    &src, &dst, &out->L3index,
+				    &fin, &syn, &rst, &psh, &ack);
+		if (nr_matched != 10)
+			test_print("Couldn't parse trace event, matched = %d/10",
+				   nr_matched);
+		break;
+	}
+	case TCP_AO_HANDSHAKE_FAILURE:
+	case TCP_AO_WRONG_MACLEN:
+	case TCP_AO_MISMATCH:
+	case TCP_AO_KEY_NOT_FOUND:
+	case TCP_AO_RNEXT_REQUEST: {
+		nr_matched = sscanf(line, "%*s net=%" PRIu64 " state%*s family=%ms src=%ms dest=%ms L3index=%d [%c%c%c%c%c] keyid=%u rnext=%u maclen=%u",
+				    &netns_cookie, &family,
+				    &src, &dst, &out->L3index,
+				    &fin, &syn, &rst, &psh, &ack,
+				    &out->keyid, &out->rnext, &out->maclen);
+		if (nr_matched != 13)
+			test_print("Couldn't parse trace event, matched = %d/13",
+				   nr_matched);
+		break;
+	}
+	case TCP_AO_SYNACK_NO_KEY: {
+		nr_matched = sscanf(line, "%*s net=%" PRIu64 " state%*s family=%ms src=%ms dest=%ms keyid=%u rnext=%u",
+				    &netns_cookie, &family,
+				    &src, &dst, &out->keyid, &out->rnext);
+		if (nr_matched != 6)
+			test_print("Couldn't parse trace event, matched = %d/6",
+				   nr_matched);
+		break;
+	}
+	case TCP_AO_SND_SNE_UPDATE:
+	case TCP_AO_RCV_SNE_UPDATE: {
+		nr_matched = sscanf(line, "%*s net=%" PRIu64 " state%*s family=%ms src=%ms dest=%ms sne=%u",
+				    &netns_cookie, &family,
+				    &src, &dst, &out->sne);
+		if (nr_matched != 5)
+			test_print("Couldn't parse trace event, matched = %d/5",
+				   nr_matched);
+		break;
+	}
+	default:
+		return -1;
+	}
+
+	if (family) {
+		if (!strcmp(family, "AF_INET")) {
+			out->family = AF_INET;
+		} else if (!strcmp(family, "AF_INET6")) {
+			out->family = AF_INET6;
+		} else {
+			test_print("Couldn't parse trace event family %s", family);
+			ret = -EINVAL;
+			goto out_free;
+		}
+	}
+
+	if (event_has_flags(event)) {
+		out->fin = (fin == 'F');
+		out->syn = (syn == 'S');
+		out->rst = (rst == 'R');
+		out->psh = (psh == 'P');
+		out->ack = (ack == '.');
+
+		if ((fin != 'F' && fin != ' ') ||
+		    (syn != 'S' && syn != ' ') ||
+		    (rst != 'R' && rst != ' ') ||
+		    (psh != 'P' && psh != ' ') ||
+		    (ack != '.' && ack != ' ')) {
+			test_print("Couldn't parse trace event flags %c%c%c%c%c",
+				   fin, syn, rst, psh, ack);
+			ret = -EINVAL;
+			goto out_free;
+		}
+	}
+
+	if (src && tracer_scan_address(out->family, src, &out->src, &out->src_port)) {
+		ret = -EINVAL;
+		goto out_free;
+	}
+
+	if (dst && tracer_scan_address(out->family, dst, &out->dst, &out->dst_port)) {
+		ret = -EINVAL;
+		goto out_free;
+	}
+
+	if (netns_cookie != ns_cookie1 && netns_cookie != ns_cookie2) {
+		test_print("Net namespace filter for trace event didn't work: %" PRIu64 " != %" PRIu64 " OR %" PRIu64,
+			   netns_cookie, ns_cookie1, ns_cookie2);
+		ret = -EINVAL;
+	}
+
+out_free:
+	free(src);
+	free(dst);
+	free(family);
+	return ret;
+}
+
+static enum ftracer_op aolib_tracer_process_event(const char *line)
+{
+	int event_type = check_event_type(line);
+	struct trace_point tmp = {};
+
+	if (event_type < 0)
+		return FTRACER_LINE_PRESERVE;
+
+	if (tracer_scan_event(line, event_type, &tmp))
+		return FTRACER_LINE_PRESERVE;
+
+	return lookup_expected_event(event_type, &tmp) ?
+		FTRACER_LINE_DISCARD : FTRACER_LINE_PRESERVE;
+}
+
+static void dump_trace_event(struct expected_trace_point *e)
+{
+	char src[INET6_ADDRSTRLEN], dst[INET6_ADDRSTRLEN];
+
+	if (!inet_ntop(e->family, &e->src, src, INET6_ADDRSTRLEN))
+		test_error("inet_ntop()");
+	if (!inet_ntop(e->family, &e->dst, dst, INET6_ADDRSTRLEN))
+		test_error("inet_ntop()");
+	test_print("trace event filter %s [%s:%d => %s:%d, L3index %d, flags: %s%s%s%s%s, keyid: %d, rnext: %d, maclen: %d, sne: %d] = %zu",
+		   trace_event_names[e->type],
+		   src, e->src_port, dst, e->dst_port, e->L3index,
+		   e->fin ? "F" : "", e->syn ? "S" : "", e->rst ? "R" : "",
+		   e->psh ? "P" : "", e->ack ? "." : "",
+		   e->keyid, e->rnext, e->maclen, e->sne, e->matched);
+}
+
+static void print_match_stats(bool unexpected_events)
+{
+	size_t matches_per_type[__MAX_TRACE_EVENTS] = {};
+	bool expected_but_none = false;
+	size_t i, total_matched = 0;
+	char *stat_line = NULL;
+
+	for (i = 0; i < exp_tps_nr; i++) {
+		struct expected_trace_point *e = &exp_tps[i];
+
+		total_matched += e->matched;
+		matches_per_type[e->type] += e->matched;
+		if (!e->matched)
+			expected_but_none = true;
+	}
+	for (i = 0; i < __MAX_TRACE_EVENTS; i++) {
+		if (!matches_per_type[i])
+			continue;
+		stat_line = test_sprintf("%s%s[%zu] ", stat_line ?: "",
+					 trace_event_names[i],
+					 matches_per_type[i]);
+		if (!stat_line)
+			test_error("test_sprintf()");
+	}
+
+	if (unexpected_events || expected_but_none) {
+		for (i = 0; i < exp_tps_nr; i++)
+			dump_trace_event(&exp_tps[i]);
+	}
+
+	if (unexpected_events)
+		return;
+
+	if (expected_but_none)
+		test_fail("Some trace events were expected, but didn't occur");
+	else if (total_matched)
+		test_ok("Trace events matched expectations: %zu %s",
+			total_matched, stat_line);
+	else
+		test_ok("No unexpected trace events during the test run");
+}
+
+#define dump_events(fmt, ...)                           \
+	__test_print(__test_msg, fmt, ##__VA_ARGS__)
+static void check_free_events(struct test_ftracer *tracer)
+{
+	const char **lines;
+	size_t nr;
+
+	if (!kernel_config_has(KCONFIG_FTRACE)) {
+		test_skip("kernel config doesn't have ftrace - no checks");
+		return;
+	}
+
+	nr = tracer_get_savedlines_nr(tracer);
+	lines = tracer_get_savedlines(tracer);
+	print_match_stats(!!nr);
+	if (!nr)
+		return;
+
+	errno = 0;
+	test_xfail("Trace events [%zu] were not expected:", nr);
+	while (nr)
+		dump_events("\t%s", lines[--nr]);
+}
+
+static int setup_tcp_trace_events(struct test_ftracer *tracer)
+{
+	char *filter;
+	size_t i;
+	int ret;
+
+	filter = test_sprintf("net_cookie == %zu || net_cookie == %zu",
+			      ns_cookie1, ns_cookie2);
+	if (!filter)
+		return -ENOMEM;
+
+	for (i = 0; i < __MAX_TRACE_EVENTS; i++) {
+		char *event_name = test_sprintf("tcp/%s", trace_event_names[i]);
+
+		if (!event_name) {
+			ret = -ENOMEM;
+			break;
+		}
+		ret = setup_trace_event(tracer, event_name, filter);
+		free(event_name);
+		if (ret)
+			break;
+	}
+
+	free(filter);
+	return ret;
+}
+
+static void aolib_tracer_destroy(struct test_ftracer *tracer)
+{
+	check_free_events(tracer);
+	free_expected_events();
+}
+
+static bool aolib_tracer_expecting_more(void)
+{
+	size_t i;
+
+	for (i = 0; i < exp_tps_nr; i++)
+		if (!exp_tps[i].matched)
+			return true;
+	return false;
+}
+
+int setup_aolib_ftracer(void)
+{
+	struct test_ftracer *f;
+
+	f = create_ftracer("aolib", aolib_tracer_process_event,
+			   aolib_tracer_destroy, aolib_tracer_expecting_more,
+			   DEFAULT_FTRACE_BUFFER_KB, DEFAULT_TRACER_LINES_ARR);
+	if (!f)
+		return -1;
+
+	return setup_tcp_trace_events(f);
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/ftrace.c b/tools/testing/selftests/net/tcp_ao/lib/ftrace.c
new file mode 100644
index 000000000000..e4d0b173bc94
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/ftrace.c
@@ -0,0 +1,543 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include "../../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+static char ftrace_path[] = "ksft-ftrace-XXXXXX";
+static bool ftrace_mounted;
+uint64_t ns_cookie1, ns_cookie2;
+
+struct test_ftracer {
+	pthread_t tracer_thread;
+	int	error;
+	char	*instance_path;
+	FILE	*trace_pipe;
+
+	enum ftracer_op (*process_line)(const char *line);
+	void (*destructor)(struct test_ftracer *tracer);
+	bool (*expecting_more)(void);
+
+	char	**saved_lines;
+	size_t	saved_lines_size;
+	size_t	next_line_ind;
+
+	pthread_cond_t met_all_expected;
+	pthread_mutex_t met_all_expected_lock;
+
+	struct test_ftracer *next;
+};
+
+static struct test_ftracer *ftracers;
+static pthread_mutex_t ftracers_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static int mount_ftrace(void)
+{
+	if (!mkdtemp(ftrace_path))
+		test_error("Can't create temp dir");
+
+	if (mount("tracefs", ftrace_path, "tracefs", 0, "rw"))
+		return -errno;
+
+	ftrace_mounted = true;
+
+	return 0;
+}
+
+static void unmount_ftrace(void)
+{
+	if (ftrace_mounted && umount(ftrace_path))
+		test_print("Failed on cleanup: can't unmount tracefs: %m");
+
+	if (rmdir(ftrace_path))
+		test_error("Failed on cleanup: can't remove ftrace dir %s",
+			   ftrace_path);
+}
+
+struct opts_list_t {
+	char *opt_name;
+	struct opts_list_t *next;
+};
+
+static int disable_trace_options(const char *ftrace_path)
+{
+	struct opts_list_t *opts_list = NULL;
+	char *fopts, *line = NULL;
+	size_t buf_len = 0;
+	ssize_t line_len;
+	int ret = 0;
+	FILE *opts;
+
+	fopts = test_sprintf("%s/%s", ftrace_path, "trace_options");
+	if (!fopts)
+		return -ENOMEM;
+
+	opts = fopen(fopts, "r+");
+	if (!opts) {
+		ret = -errno;
+		goto out_free;
+	}
+
+	while ((line_len = getline(&line, &buf_len, opts)) != -1) {
+		struct opts_list_t *tmp;
+
+		if (!strncmp(line, "no", 2))
+			continue;
+
+		tmp = malloc(sizeof(*tmp));
+		if (!tmp) {
+			ret = -ENOMEM;
+			goto out_free_opts_list;
+		}
+		tmp->next = opts_list;
+		tmp->opt_name = test_sprintf("no%s", line);
+		if (!tmp->opt_name) {
+			ret = -ENOMEM;
+			free(tmp);
+			goto out_free_opts_list;
+		}
+		opts_list = tmp;
+	}
+
+	while (opts_list) {
+		struct opts_list_t *tmp = opts_list;
+
+		fseek(opts, 0, SEEK_SET);
+		fwrite(tmp->opt_name, 1, strlen(tmp->opt_name), opts);
+
+		opts_list = opts_list->next;
+		free(tmp->opt_name);
+		free(tmp);
+	}
+
+out_free_opts_list:
+	while (opts_list) {
+		struct opts_list_t *tmp = opts_list;
+
+		opts_list = opts_list->next;
+		free(tmp->opt_name);
+		free(tmp);
+	}
+	free(line);
+	fclose(opts);
+out_free:
+	free(fopts);
+	return ret;
+}
+
+static int setup_buffer_size(const char *ftrace_path, size_t sz)
+{
+	char *fbuf_size = test_sprintf("%s/buffer_size_kb", ftrace_path);
+	int ret;
+
+	if (!fbuf_size)
+		return -1;
+
+	ret = test_echo(fbuf_size, 0, "%zu", sz);
+	free(fbuf_size);
+	return ret;
+}
+
+static int setup_ftrace_instance(struct test_ftracer *tracer, const char *name)
+{
+	char *tmp;
+
+	tmp = test_sprintf("%s/instances/ksft-%s-XXXXXX", ftrace_path, name);
+	if (!tmp)
+		return -ENOMEM;
+
+	tracer->instance_path = mkdtemp(tmp);
+	if (!tracer->instance_path) {
+		free(tmp);
+		return -errno;
+	}
+
+	return 0;
+}
+
+static void remove_ftrace_instance(struct test_ftracer *tracer)
+{
+	if (rmdir(tracer->instance_path))
+		test_print("Failed on cleanup: can't remove ftrace instance %s",
+			   tracer->instance_path);
+	free(tracer->instance_path);
+}
+
+static void tracer_cleanup(void *arg)
+{
+	struct test_ftracer *tracer = arg;
+
+	fclose(tracer->trace_pipe);
+}
+
+static void tracer_set_error(struct test_ftracer *tracer, int error)
+{
+	if (!tracer->error)
+		tracer->error = error;
+}
+
+const size_t tracer_get_savedlines_nr(struct test_ftracer *tracer)
+{
+	return tracer->next_line_ind;
+}
+
+const char **tracer_get_savedlines(struct test_ftracer *tracer)
+{
+	return (const char **)tracer->saved_lines;
+}
+
+static void *tracer_thread_func(void *arg)
+{
+	struct test_ftracer *tracer = arg;
+
+	pthread_cleanup_push(tracer_cleanup, arg);
+
+	while (tracer->next_line_ind < tracer->saved_lines_size) {
+		char **lp = &tracer->saved_lines[tracer->next_line_ind];
+		enum ftracer_op op;
+		size_t buf_len = 0;
+		ssize_t line_len;
+
+		line_len = getline(lp, &buf_len, tracer->trace_pipe);
+		if (line_len == -1)
+			break;
+
+		pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
+		op = tracer->process_line(*lp);
+		pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL);
+
+		if (tracer->expecting_more) {
+			pthread_mutex_lock(&tracer->met_all_expected_lock);
+			if (!tracer->expecting_more())
+				pthread_cond_signal(&tracer->met_all_expected);
+			pthread_mutex_unlock(&tracer->met_all_expected_lock);
+		}
+
+		if (op == FTRACER_LINE_DISCARD)
+			continue;
+		if (op == FTRACER_EXIT)
+			break;
+		if (op != FTRACER_LINE_PRESERVE)
+			test_error("unexpected tracer command %d", op);
+
+		tracer->next_line_ind++;
+		buf_len = 0;
+	}
+	test_print("too many lines in ftracer buffer %zu, exiting tracer",
+		   tracer->next_line_ind);
+
+	pthread_cleanup_pop(1);
+	return NULL;
+}
+
+static int setup_trace_thread(struct test_ftracer *tracer)
+{
+	int ret = 0;
+	char *path;
+
+	path = test_sprintf("%s/trace_pipe", tracer->instance_path);
+	if (!path)
+		return -ENOMEM;
+
+	tracer->trace_pipe = fopen(path, "r");
+	if (!tracer->trace_pipe) {
+		ret = -errno;
+		goto out_free;
+	}
+
+	if (pthread_create(&tracer->tracer_thread, NULL,
+			   tracer_thread_func, (void *)tracer)) {
+		ret = -errno;
+		fclose(tracer->trace_pipe);
+	}
+
+out_free:
+	free(path);
+	return ret;
+}
+
+static void stop_trace_thread(struct test_ftracer *tracer)
+{
+	void *res;
+
+	if (pthread_cancel(tracer->tracer_thread)) {
+		test_print("Can't stop tracer pthread: %m");
+		tracer_set_error(tracer, -errno);
+	}
+	if (pthread_join(tracer->tracer_thread, &res)) {
+		test_print("Can't join tracer pthread: %m");
+		tracer_set_error(tracer, -errno);
+	}
+	if (res != PTHREAD_CANCELED) {
+		test_print("Tracer thread wasn't canceled");
+		tracer_set_error(tracer, -errno);
+	}
+	if (tracer->error)
+		test_fail("tracer errored by %s", strerror(tracer->error));
+}
+
+static void final_wait_for_events(struct test_ftracer *tracer,
+				  unsigned timeout_sec)
+{
+	struct timespec timeout;
+	struct timeval now;
+	int ret = 0;
+
+	if (!tracer->expecting_more)
+		return;
+
+	pthread_mutex_lock(&tracer->met_all_expected_lock);
+	gettimeofday(&now, NULL);
+	timeout.tv_sec = now.tv_sec + timeout_sec;
+	timeout.tv_nsec = now.tv_usec * 1000;
+
+	while (tracer->expecting_more() && ret != ETIMEDOUT)
+		ret = pthread_cond_timedwait(&tracer->met_all_expected,
+				&tracer->met_all_expected_lock, &timeout);
+	pthread_mutex_unlock(&tracer->met_all_expected_lock);
+}
+
+int setup_trace_event(struct test_ftracer *tracer,
+		      const char *event, const char *filter)
+{
+	char *enable_path, *filter_path, *instance = tracer->instance_path;
+	int ret;
+
+	enable_path = test_sprintf("%s/events/%s/enable", instance, event);
+	if (!enable_path)
+		return -ENOMEM;
+
+	filter_path = test_sprintf("%s/events/%s/filter", instance, event);
+	if (!filter_path) {
+		ret = -ENOMEM;
+		goto out_free;
+	}
+
+	ret = test_echo(filter_path, 0, "%s", filter);
+	if (!ret)
+		ret = test_echo(enable_path, 0, "1");
+
+out_free:
+	free(filter_path);
+	free(enable_path);
+	return ret;
+}
+
+struct test_ftracer *create_ftracer(const char *name,
+				    enum ftracer_op (*process_line)(const char *line),
+				    void (*destructor)(struct test_ftracer *tracer),
+				    bool (*expecting_more)(void),
+				    size_t lines_buf_sz, size_t buffer_size_kb)
+{
+	struct test_ftracer *tracer;
+	int err;
+
+	/* XXX: separate __create_ftracer() helper and do here
+	 * if (!kernel_config_has(KCONFIG_FTRACE))
+	 *	return NULL;
+	 */
+
+	tracer = malloc(sizeof(*tracer));
+	if (!tracer) {
+		test_print("malloc()");
+		return NULL;
+	}
+
+	memset(tracer, 0, sizeof(*tracer));
+
+	err = setup_ftrace_instance(tracer, name);
+	if (err) {
+		test_print("setup_ftrace_instance(): %d", err);
+		goto err_free;
+	}
+
+	err = disable_trace_options(tracer->instance_path);
+	if (err) {
+		test_print("disable_trace_options(): %d", err);
+		goto err_remove;
+	}
+
+	err = setup_buffer_size(tracer->instance_path, buffer_size_kb);
+	if (err) {
+		test_print("disable_trace_options(): %d", err);
+		goto err_remove;
+	}
+
+	tracer->saved_lines = calloc(lines_buf_sz, sizeof(tracer->saved_lines[0]));
+	if (!tracer->saved_lines) {
+		test_print("calloc()");
+		goto err_remove;
+	}
+	tracer->saved_lines_size = lines_buf_sz;
+
+	tracer->process_line	= process_line;
+	tracer->destructor	= destructor;
+	tracer->expecting_more	= expecting_more;
+
+	err = pthread_cond_init(&tracer->met_all_expected, NULL);
+	if (err) {
+		test_print("pthread_cond_init(): %d", err);
+		goto err_free_lines;
+	}
+
+	err = pthread_mutex_init(&tracer->met_all_expected_lock, NULL);
+	if (err) {
+		test_print("pthread_mutex_init(): %d", err);
+		goto err_cond_destroy;
+	}
+
+	err = setup_trace_thread(tracer);
+	if (err) {
+		test_print("setup_trace_thread(): %d", err);
+		goto err_mutex_destroy;
+	}
+
+	pthread_mutex_lock(&ftracers_lock);
+	tracer->next = ftracers;
+	ftracers = tracer;
+	pthread_mutex_unlock(&ftracers_lock);
+
+	return tracer;
+
+err_mutex_destroy:
+	pthread_mutex_destroy(&tracer->met_all_expected_lock);
+err_cond_destroy:
+	pthread_cond_destroy(&tracer->met_all_expected);
+err_free_lines:
+	free(tracer->saved_lines);
+err_remove:
+	remove_ftrace_instance(tracer);
+err_free:
+	free(tracer);
+	return NULL;
+}
+
+static void __destroy_ftracer(struct test_ftracer *tracer)
+{
+	size_t i;
+
+	final_wait_for_events(tracer, TEST_TIMEOUT_SEC);
+	stop_trace_thread(tracer);
+	remove_ftrace_instance(tracer);
+	if (tracer->destructor)
+		tracer->destructor(tracer);
+	for (i = 0; i < tracer->saved_lines_size; i++)
+		free(tracer->saved_lines[i]);
+	pthread_cond_destroy(&tracer->met_all_expected);
+	pthread_mutex_destroy(&tracer->met_all_expected_lock);
+	free(tracer);
+}
+
+void destroy_ftracer(struct test_ftracer *tracer)
+{
+	pthread_mutex_lock(&ftracers_lock);
+	if (tracer == ftracers) {
+		ftracers = tracer->next;
+	} else {
+		struct test_ftracer *f = ftracers;
+
+		while (f->next != tracer) {
+			if (!f->next)
+				test_error("tracers list corruption or double free %p", tracer);
+			f = f->next;
+		}
+		f->next = tracer->next;
+	}
+	tracer->next = NULL;
+	pthread_mutex_unlock(&ftracers_lock);
+	__destroy_ftracer(tracer);
+}
+
+static void destroy_all_ftracers(void)
+{
+	struct test_ftracer *f;
+
+	pthread_mutex_lock(&ftracers_lock);
+	f = ftracers;
+	ftracers = NULL;
+	pthread_mutex_unlock(&ftracers_lock);
+
+	while (f) {
+		struct test_ftracer *n = f->next;
+
+		f->next = NULL;
+		__destroy_ftracer(f);
+		f = n;
+	}
+}
+
+static void test_unset_tracing(void)
+{
+	destroy_all_ftracers();
+	unmount_ftrace();
+}
+
+int test_setup_tracing(void)
+{
+	/*
+	 * Just a basic protection - this should be called only once from
+	 * lib/kconfig. Not thread safe, which is fine as it's early, before
+	 * threads are created.
+	 */
+	static int already_set;
+	int err;
+
+	if (already_set)
+		return -1;
+
+	/* Needs net-namespace cookies for filters */
+	if (ns_cookie1 == ns_cookie2) {
+		test_print("net-namespace cookies: %" PRIu64 " == %" PRIu64 ", can't set up tracing",
+			   ns_cookie1, ns_cookie2);
+		return -1;
+	}
+
+	already_set = 1;
+
+	test_add_destructor(test_unset_tracing);
+
+	err = mount_ftrace();
+	if (err) {
+		test_print("failed to mount_ftrace(): %d", err);
+		return err;
+	}
+
+	return setup_aolib_ftracer();
+}
+
+static int get_ns_cookie(int nsfd, uint64_t *out)
+{
+	int old_ns = switch_save_ns(nsfd);
+	socklen_t size = sizeof(*out);
+	int sk;
+
+	sk = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0) {
+		test_print("socket(): %m");
+		return -errno;
+	}
+
+	if (getsockopt(sk, SOL_SOCKET, SO_NETNS_COOKIE, out, &size)) {
+		test_print("getsockopt(SO_NETNS_COOKIE): %m");
+		close(sk);
+		return -errno;
+	}
+
+	close(sk);
+	switch_close_ns(old_ns);
+	return 0;
+}
+
+void test_init_ftrace(int nsfd1, int nsfd2)
+{
+	get_ns_cookie(nsfd1, &ns_cookie1);
+	get_ns_cookie(nsfd2, &ns_cookie2);
+	/* Populate kernel config state */
+	kernel_config_has(KCONFIG_FTRACE);
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/kconfig.c b/tools/testing/selftests/net/tcp_ao/lib/kconfig.c
new file mode 100644
index 000000000000..9f1c175846f8
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/kconfig.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Check what features does the kernel support (where the selftest is running).
+ * Somewhat inspired by CRIU kerndat/kdat kernel features detector.
+ */
+#include <pthread.h>
+#include "aolib.h"
+
+struct kconfig_t {
+	int _error;		/* negative errno if not supported */
+	int (*check_kconfig)(int *error);
+};
+
+static int has_net_ns(int *err)
+{
+	if (access("/proc/self/ns/net", F_OK) < 0) {
+		*err = errno;
+		if (errno == ENOENT)
+			return 0;
+		test_print("Unable to access /proc/self/ns/net: %m");
+		return -errno;
+	}
+	return *err = errno = 0;
+}
+
+static int has_veth(int *err)
+{
+	int orig_netns, ns_a, ns_b;
+
+	orig_netns = open_netns();
+	ns_a = unshare_open_netns();
+	ns_b = unshare_open_netns();
+
+	*err = add_veth("check_veth", ns_a, ns_b);
+
+	switch_ns(orig_netns);
+	close(orig_netns);
+	close(ns_a);
+	close(ns_b);
+	return 0;
+}
+
+static int has_tcp_ao(int *err)
+{
+	struct sockaddr_in addr = {
+		.sin_family = test_family,
+	};
+	struct tcp_ao_add tmp = {};
+	const char *password = DEFAULT_TEST_PASSWORD;
+	int sk, ret = 0;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0) {
+		test_print("socket(): %m");
+		return -errno;
+	}
+
+	tmp.sndid = 100;
+	tmp.rcvid = 100;
+	tmp.keylen = strlen(password);
+	memcpy(tmp.key, password, strlen(password));
+	strcpy(tmp.alg_name, "hmac(sha1)");
+	memcpy(&tmp.addr, &addr, sizeof(addr));
+	*err = 0;
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &tmp, sizeof(tmp)) < 0) {
+		*err = -errno;
+		if (errno != ENOPROTOOPT)
+			ret = -errno;
+	}
+	close(sk);
+	return ret;
+}
+
+static int has_tcp_md5(int *err)
+{
+	union tcp_addr addr_any = {};
+	int sk, ret = 0;
+
+	sk = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0) {
+		test_print("socket(): %m");
+		return -errno;
+	}
+
+	/*
+	 * Under CONFIG_CRYPTO_FIPS=y it fails with ENOMEM, rather with
+	 * anything more descriptive. Oh well.
+	 */
+	*err = 0;
+	if (test_set_md5(sk, addr_any, 0, -1, DEFAULT_TEST_PASSWORD)) {
+		*err = -errno;
+		if (errno != ENOPROTOOPT && errno == ENOMEM) {
+			test_print("setsockopt(TCP_MD5SIG_EXT): %m");
+			ret = -errno;
+		}
+	}
+	close(sk);
+	return ret;
+}
+
+static int has_vrfs(int *err)
+{
+	int orig_netns, ns_test, ret = 0;
+
+	orig_netns = open_netns();
+	ns_test = unshare_open_netns();
+
+	*err = add_vrf("ksft-check", 55, 101, ns_test);
+	if (*err && *err != -EOPNOTSUPP) {
+		test_print("Failed to add a VRF: %d", *err);
+		ret = *err;
+	}
+
+	switch_ns(orig_netns);
+	close(orig_netns);
+	close(ns_test);
+	return ret;
+}
+
+static int has_ftrace(int *err)
+{
+	*err = test_setup_tracing();
+	return 0;
+}
+
+#define KCONFIG_UNKNOWN			1
+static pthread_mutex_t kconfig_lock = PTHREAD_MUTEX_INITIALIZER;
+static struct kconfig_t kconfig[__KCONFIG_LAST__] = {
+	{ KCONFIG_UNKNOWN, has_net_ns },
+	{ KCONFIG_UNKNOWN, has_veth },
+	{ KCONFIG_UNKNOWN, has_tcp_ao },
+	{ KCONFIG_UNKNOWN, has_tcp_md5 },
+	{ KCONFIG_UNKNOWN, has_vrfs },
+	{ KCONFIG_UNKNOWN, has_ftrace },
+};
+
+const char *tests_skip_reason[__KCONFIG_LAST__] = {
+	"Tests require network namespaces support (CONFIG_NET_NS)",
+	"Tests require veth support (CONFIG_VETH)",
+	"Tests require TCP-AO support (CONFIG_TCP_AO)",
+	"setsockopt(TCP_MD5SIG_EXT) is not supported (CONFIG_TCP_MD5)",
+	"VRFs are not supported (CONFIG_NET_VRF)",
+	"Ftrace points are not supported (CONFIG_TRACEPOINTS)",
+};
+
+bool kernel_config_has(enum test_needs_kconfig k)
+{
+	bool ret;
+
+	pthread_mutex_lock(&kconfig_lock);
+	if (kconfig[k]._error == KCONFIG_UNKNOWN) {
+		if (kconfig[k].check_kconfig(&kconfig[k]._error))
+			test_error("Failed to initialize kconfig %u", k);
+	}
+	ret = kconfig[k]._error == 0;
+	pthread_mutex_unlock(&kconfig_lock);
+	return ret;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/netlink.c b/tools/testing/selftests/net/tcp_ao/lib/netlink.c
new file mode 100644
index 000000000000..7f108493a29a
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/netlink.c
@@ -0,0 +1,413 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Original from tools/testing/selftests/net/ipsec.c */
+#include <linux/netlink.h>
+#include <linux/random.h>
+#include <linux/rtnetlink.h>
+#include <linux/veth.h>
+#include <net/if.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/socket.h>
+
+#include "aolib.h"
+
+#define MAX_PAYLOAD		2048
+
+static int netlink_sock(int *sock, uint32_t *seq_nr, int proto)
+{
+	if (*sock > 0) {
+		seq_nr++;
+		return 0;
+	}
+
+	*sock = socket(AF_NETLINK, SOCK_RAW | SOCK_CLOEXEC, proto);
+	if (*sock < 0) {
+		test_print("socket(AF_NETLINK)");
+		return -1;
+	}
+
+	randomize_buffer(seq_nr, sizeof(*seq_nr));
+
+	return 0;
+}
+
+static int netlink_check_answer(int sock, bool quite)
+{
+	struct nlmsgerror {
+		struct nlmsghdr hdr;
+		int error;
+		struct nlmsghdr orig_msg;
+	} answer;
+
+	if (recv(sock, &answer, sizeof(answer), 0) < 0) {
+		test_print("recv()");
+		return -1;
+	} else if (answer.hdr.nlmsg_type != NLMSG_ERROR) {
+		test_print("expected NLMSG_ERROR, got %d",
+			   (int)answer.hdr.nlmsg_type);
+		return -1;
+	} else if (answer.error) {
+		if (!quite) {
+			test_print("NLMSG_ERROR: %d: %s",
+				answer.error, strerror(-answer.error));
+		}
+		return answer.error;
+	}
+
+	return 0;
+}
+
+static inline struct rtattr *rtattr_hdr(struct nlmsghdr *nh)
+{
+	return (struct rtattr *)((char *)(nh) + RTA_ALIGN((nh)->nlmsg_len));
+}
+
+static int rtattr_pack(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type, const void *payload, size_t size)
+{
+	/* NLMSG_ALIGNTO == RTA_ALIGNTO, nlmsg_len already aligned */
+	struct rtattr *attr = rtattr_hdr(nh);
+	size_t nl_size = RTA_ALIGN(nh->nlmsg_len) + RTA_LENGTH(size);
+
+	if (req_sz < nl_size) {
+		test_print("req buf is too small: %zu < %zu", req_sz, nl_size);
+		return -1;
+	}
+	nh->nlmsg_len = nl_size;
+
+	attr->rta_len = RTA_LENGTH(size);
+	attr->rta_type = rta_type;
+	memcpy(RTA_DATA(attr), payload, size);
+
+	return 0;
+}
+
+static struct rtattr *_rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type, const void *payload, size_t size)
+{
+	struct rtattr *ret = rtattr_hdr(nh);
+
+	if (rtattr_pack(nh, req_sz, rta_type, payload, size))
+		return 0;
+
+	return ret;
+}
+
+static inline struct rtattr *rtattr_begin(struct nlmsghdr *nh, size_t req_sz,
+		unsigned short rta_type)
+{
+	return _rtattr_begin(nh, req_sz, rta_type, 0, 0);
+}
+
+static inline void rtattr_end(struct nlmsghdr *nh, struct rtattr *attr)
+{
+	char *nlmsg_end = (char *)nh + nh->nlmsg_len;
+
+	attr->rta_len = nlmsg_end - (char *)attr;
+}
+
+static int veth_pack_peerb(struct nlmsghdr *nh, size_t req_sz,
+		const char *peer, int ns)
+{
+	struct ifinfomsg pi;
+	struct rtattr *peer_attr;
+
+	memset(&pi, 0, sizeof(pi));
+	pi.ifi_family	= AF_UNSPEC;
+	pi.ifi_change	= 0xFFFFFFFF;
+
+	peer_attr = _rtattr_begin(nh, req_sz, VETH_INFO_PEER, &pi, sizeof(pi));
+	if (!peer_attr)
+		return -1;
+
+	if (rtattr_pack(nh, req_sz, IFLA_IFNAME, peer, strlen(peer)))
+		return -1;
+
+	if (rtattr_pack(nh, req_sz, IFLA_NET_NS_FD, &ns, sizeof(ns)))
+		return -1;
+
+	rtattr_end(nh, peer_attr);
+
+	return 0;
+}
+
+static int __add_veth(int sock, uint32_t seq, const char *name,
+		      int ns_a, int ns_b)
+{
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+	struct {
+		struct nlmsghdr		nh;
+		struct ifinfomsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	static const char veth_type[] = "veth";
+	struct rtattr *link_info, *info_data;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWLINK;
+	req.nh.nlmsg_flags	= flags;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifi_family	= AF_UNSPEC;
+	req.info.ifi_change	= 0xFFFFFFFF;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, name, strlen(name)))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD, &ns_a, sizeof(ns_a)))
+		return -1;
+
+	link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);
+	if (!link_info)
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, veth_type, sizeof(veth_type)))
+		return -1;
+
+	info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);
+	if (!info_data)
+		return -1;
+
+	if (veth_pack_peerb(&req.nh, sizeof(req), name, ns_b))
+		return -1;
+
+	rtattr_end(&req.nh, info_data);
+	rtattr_end(&req.nh, link_info);
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		test_print("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock, false);
+}
+
+int add_veth(const char *name, int nsfda, int nsfdb)
+{
+	int route_sock = -1, ret;
+	uint32_t route_seq;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		test_error("Failed to open netlink route socket\n");
+
+	ret = __add_veth(route_sock, route_seq++, name, nsfda, nsfdb);
+	close(route_sock);
+	return ret;
+}
+
+static int __ip_addr_add(int sock, uint32_t seq, const char *intf,
+			 int family, union tcp_addr addr, uint8_t prefix)
+{
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+	struct {
+		struct nlmsghdr		nh;
+		struct ifaddrmsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	size_t addr_len = (family == AF_INET) ? sizeof(struct in_addr) :
+						sizeof(struct in6_addr);
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWADDR;
+	req.nh.nlmsg_flags	= flags;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifa_family	= family;
+	req.info.ifa_prefixlen	= prefix;
+	req.info.ifa_index	= if_nametoindex(intf);
+	req.info.ifa_flags	= IFA_F_NODAD;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFA_LOCAL, &addr, addr_len))
+		return -1;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		test_print("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock, true);
+}
+
+int ip_addr_add(const char *intf, int family,
+		union tcp_addr addr, uint8_t prefix)
+{
+	int route_sock = -1, ret;
+	uint32_t route_seq;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		test_error("Failed to open netlink route socket\n");
+
+	ret = __ip_addr_add(route_sock, route_seq++, intf,
+			    family, addr, prefix);
+
+	close(route_sock);
+	return ret;
+}
+
+static int __ip_route_add(int sock, uint32_t seq, const char *intf, int family,
+			  union tcp_addr src, union tcp_addr dst, uint8_t vrf)
+{
+	struct {
+		struct nlmsghdr	nh;
+		struct rtmsg	rt;
+		char		attrbuf[MAX_PAYLOAD];
+	} req;
+	unsigned int index = if_nametoindex(intf);
+	size_t addr_len = (family == AF_INET) ? sizeof(struct in_addr) :
+						sizeof(struct in6_addr);
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.rt));
+	req.nh.nlmsg_type	= RTM_NEWROUTE;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK | NLM_F_CREATE;
+	req.nh.nlmsg_seq	= seq;
+	req.rt.rtm_family	= family;
+	req.rt.rtm_dst_len	= (family == AF_INET) ? 32 : 128;
+	req.rt.rtm_table	= vrf;
+	req.rt.rtm_protocol	= RTPROT_BOOT;
+	req.rt.rtm_scope	= RT_SCOPE_UNIVERSE;
+	req.rt.rtm_type		= RTN_UNICAST;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_DST, &dst, addr_len))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_PREFSRC, &src, addr_len))
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), RTA_OIF, &index, sizeof(index)))
+		return -1;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		test_print("send()");
+		return -1;
+	}
+
+	return netlink_check_answer(sock, true);
+}
+
+int ip_route_add_vrf(const char *intf, int family,
+		 union tcp_addr src, union tcp_addr dst, uint8_t vrf)
+{
+	int route_sock = -1, ret;
+	uint32_t route_seq;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		test_error("Failed to open netlink route socket\n");
+
+	ret = __ip_route_add(route_sock, route_seq++, intf,
+			     family, src, dst, vrf);
+
+	close(route_sock);
+	return ret;
+}
+
+int ip_route_add(const char *intf, int family,
+		 union tcp_addr src, union tcp_addr dst)
+{
+	return ip_route_add_vrf(intf, family, src, dst, RT_TABLE_MAIN);
+}
+
+static int __link_set_up(int sock, uint32_t seq, const char *intf)
+{
+	struct {
+		struct nlmsghdr		nh;
+		struct ifinfomsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWLINK;
+	req.nh.nlmsg_flags	= NLM_F_REQUEST | NLM_F_ACK;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifi_family	= AF_UNSPEC;
+	req.info.ifi_change	= 0xFFFFFFFF;
+	req.info.ifi_index	= if_nametoindex(intf);
+	req.info.ifi_flags	= IFF_UP;
+	req.info.ifi_change	= IFF_UP;
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		test_print("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock, false);
+}
+
+int link_set_up(const char *intf)
+{
+	int route_sock = -1, ret;
+	uint32_t route_seq;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		test_error("Failed to open netlink route socket\n");
+
+	ret = __link_set_up(route_sock, route_seq++, intf);
+
+	close(route_sock);
+	return ret;
+}
+
+static int __add_vrf(int sock, uint32_t seq, const char *name,
+		     uint32_t tabid, int ifindex, int nsfd)
+{
+	uint16_t flags = NLM_F_REQUEST | NLM_F_ACK | NLM_F_EXCL | NLM_F_CREATE;
+	struct {
+		struct nlmsghdr		nh;
+		struct ifinfomsg	info;
+		char			attrbuf[MAX_PAYLOAD];
+	} req;
+	static const char vrf_type[] = "vrf";
+	struct rtattr *link_info, *info_data;
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len	= NLMSG_LENGTH(sizeof(req.info));
+	req.nh.nlmsg_type	= RTM_NEWLINK;
+	req.nh.nlmsg_flags	= flags;
+	req.nh.nlmsg_seq	= seq;
+	req.info.ifi_family	= AF_UNSPEC;
+	req.info.ifi_change	= 0xFFFFFFFF;
+	req.info.ifi_index	= ifindex;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_IFNAME, name, strlen(name)))
+		return -1;
+
+	if (nsfd >= 0)
+		if (rtattr_pack(&req.nh, sizeof(req), IFLA_NET_NS_FD,
+				&nsfd, sizeof(nsfd)))
+			return -1;
+
+	link_info = rtattr_begin(&req.nh, sizeof(req), IFLA_LINKINFO);
+	if (!link_info)
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_INFO_KIND, vrf_type, sizeof(vrf_type)))
+		return -1;
+
+	info_data = rtattr_begin(&req.nh, sizeof(req), IFLA_INFO_DATA);
+	if (!info_data)
+		return -1;
+
+	if (rtattr_pack(&req.nh, sizeof(req), IFLA_VRF_TABLE,
+			&tabid, sizeof(tabid)))
+		return -1;
+
+	rtattr_end(&req.nh, info_data);
+	rtattr_end(&req.nh, link_info);
+
+	if (send(sock, &req, req.nh.nlmsg_len, 0) < 0) {
+		test_print("send()");
+		return -1;
+	}
+	return netlink_check_answer(sock, true);
+}
+
+int add_vrf(const char *name, uint32_t tabid, int ifindex, int nsfd)
+{
+	int route_sock = -1, ret;
+	uint32_t route_seq;
+
+	if (netlink_sock(&route_sock, &route_seq, NETLINK_ROUTE))
+		test_error("Failed to open netlink route socket\n");
+
+	ret = __add_vrf(route_sock, route_seq++, name, tabid, ifindex, nsfd);
+	close(route_sock);
+	return ret;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/proc.c b/tools/testing/selftests/net/tcp_ao/lib/proc.c
new file mode 100644
index 000000000000..8b984fa04286
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/proc.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdio.h>
+#include "../../../../../include/linux/compiler.h"
+#include "../../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+struct netstat_counter {
+	uint64_t val;
+	char *name;
+};
+
+struct netstat {
+	char *header_name;
+	struct netstat *next;
+	size_t counters_nr;
+	struct netstat_counter *counters;
+};
+
+static struct netstat *lookup_type(struct netstat *ns,
+		const char *type, size_t len)
+{
+	while (ns != NULL) {
+		size_t cmp = max(len, strlen(ns->header_name));
+
+		if (!strncmp(ns->header_name, type, cmp))
+			return ns;
+		ns = ns->next;
+	}
+	return NULL;
+}
+
+static struct netstat *lookup_get(struct netstat *ns,
+				  const char *type, const size_t len)
+{
+	struct netstat *ret;
+
+	ret = lookup_type(ns, type, len);
+	if (ret != NULL)
+		return ret;
+
+	ret = malloc(sizeof(struct netstat));
+	if (!ret)
+		test_error("malloc()");
+
+	ret->header_name = strndup(type, len);
+	if (ret->header_name == NULL)
+		test_error("strndup()");
+	ret->next = ns;
+	ret->counters_nr = 0;
+	ret->counters = NULL;
+
+	return ret;
+}
+
+static struct netstat *lookup_get_column(struct netstat *ns, const char *line)
+{
+	char *column;
+
+	column = strchr(line, ':');
+	if (!column)
+		test_error("can't parse netstat file");
+
+	return lookup_get(ns, line, column - line);
+}
+
+static void netstat_read_type(FILE *fnetstat, struct netstat **dest, char *line)
+{
+	struct netstat *type = lookup_get_column(*dest, line);
+	const char *pos = line;
+	size_t i, nr_elems = 0;
+	char tmp;
+
+	while ((pos = strchr(pos, ' '))) {
+		nr_elems++;
+		pos++;
+	}
+
+	*dest = type;
+	type->counters = reallocarray(type->counters,
+				type->counters_nr + nr_elems,
+				sizeof(struct netstat_counter));
+	if (!type->counters)
+		test_error("reallocarray()");
+
+	pos = strchr(line, ' ') + 1;
+
+	if (fscanf(fnetstat, "%[^ :]", type->header_name) == EOF)
+		test_error("fscanf(%s)", type->header_name);
+	if (fread(&tmp, 1, 1, fnetstat) != 1 || tmp != ':')
+		test_error("Unexpected netstat format (%c)", tmp);
+
+	for (i = type->counters_nr; i < type->counters_nr + nr_elems; i++) {
+		struct netstat_counter *nc = &type->counters[i];
+		const char *new_pos = strchr(pos, ' ');
+		const char *fmt = " %" PRIu64;
+
+		if (new_pos == NULL)
+			new_pos = strchr(pos, '\n');
+
+		nc->name = strndup(pos, new_pos - pos);
+		if (nc->name == NULL)
+			test_error("strndup()");
+
+		if (unlikely(!strcmp(nc->name, "MaxConn")))
+			fmt = " %" PRId64; /* MaxConn is signed, RFC 2012 */
+		if (fscanf(fnetstat, fmt, &nc->val) != 1)
+			test_error("fscanf(%s)", nc->name);
+		pos = new_pos + 1;
+	}
+	type->counters_nr += nr_elems;
+
+	if (fread(&tmp, 1, 1, fnetstat) != 1 || tmp != '\n')
+		test_error("Unexpected netstat format");
+}
+
+static const char *snmp6_name = "Snmp6";
+static void snmp6_read(FILE *fnetstat, struct netstat **dest)
+{
+	struct netstat *type = lookup_get(*dest, snmp6_name, strlen(snmp6_name));
+	char *counter_name;
+	size_t i;
+
+	for (i = type->counters_nr;; i++) {
+		struct netstat_counter *nc;
+		uint64_t counter;
+
+		if (fscanf(fnetstat, "%ms", &counter_name) == EOF)
+			break;
+		if (fscanf(fnetstat, "%" PRIu64, &counter) == EOF)
+			test_error("Unexpected snmp6 format");
+		type->counters = reallocarray(type->counters, i + 1,
+					sizeof(struct netstat_counter));
+		if (!type->counters)
+			test_error("reallocarray()");
+		nc = &type->counters[i];
+		nc->name = counter_name;
+		nc->val = counter;
+	}
+	type->counters_nr = i;
+	*dest = type;
+}
+
+struct netstat *netstat_read(void)
+{
+	struct netstat *ret = 0;
+	size_t line_sz = 0;
+	char *line = NULL;
+	FILE *fnetstat;
+
+	/*
+	 * Opening thread-self instead of /proc/net/... as the latter
+	 * points to /proc/self/net/ which instantiates thread-leader's
+	 * net-ns, see:
+	 * commit 155134fef2b6 ("Revert "proc: Point /proc/{mounts,net} at..")
+	 */
+	errno = 0;
+	fnetstat = fopen("/proc/thread-self/net/netstat", "r");
+	if (fnetstat == NULL)
+		test_error("failed to open /proc/net/netstat");
+
+	while (getline(&line, &line_sz, fnetstat) != -1)
+		netstat_read_type(fnetstat, &ret, line);
+	fclose(fnetstat);
+
+	errno = 0;
+	fnetstat = fopen("/proc/thread-self/net/snmp", "r");
+	if (fnetstat == NULL)
+		test_error("failed to open /proc/net/snmp");
+
+	while (getline(&line, &line_sz, fnetstat) != -1)
+		netstat_read_type(fnetstat, &ret, line);
+	fclose(fnetstat);
+
+	errno = 0;
+	fnetstat = fopen("/proc/thread-self/net/snmp6", "r");
+	if (fnetstat == NULL)
+		test_error("failed to open /proc/net/snmp6");
+
+	snmp6_read(fnetstat, &ret);
+	fclose(fnetstat);
+
+	free(line);
+	return ret;
+}
+
+void netstat_free(struct netstat *ns)
+{
+	while (ns != NULL) {
+		struct netstat *prev = ns;
+		size_t i;
+
+		free(ns->header_name);
+		for (i = 0; i < ns->counters_nr; i++)
+			free(ns->counters[i].name);
+		free(ns->counters);
+		ns = ns->next;
+		free(prev);
+	}
+}
+
+static inline void
+__netstat_print_diff(uint64_t a, struct netstat *nsb, size_t i)
+{
+	if (unlikely(!strcmp(nsb->header_name, "MaxConn"))) {
+		test_print("%8s %25s: %" PRId64 " => %" PRId64,
+				nsb->header_name, nsb->counters[i].name,
+				a, nsb->counters[i].val);
+		return;
+	}
+
+	test_print("%8s %25s: %" PRIu64 " => %" PRIu64, nsb->header_name,
+			nsb->counters[i].name, a, nsb->counters[i].val);
+}
+
+void netstat_print_diff(struct netstat *nsa, struct netstat *nsb)
+{
+	size_t i, j;
+
+	while (nsb != NULL) {
+		if (unlikely(strcmp(nsb->header_name, nsa->header_name))) {
+			for (i = 0; i < nsb->counters_nr; i++)
+				__netstat_print_diff(0, nsb, i);
+			nsb = nsb->next;
+			continue;
+		}
+
+		if (nsb->counters_nr < nsa->counters_nr)
+			test_error("Unexpected: some counters disappeared!");
+
+		for (j = 0, i = 0; i < nsb->counters_nr; i++) {
+			if (strcmp(nsb->counters[i].name, nsa->counters[j].name)) {
+				__netstat_print_diff(0, nsb, i);
+				continue;
+			}
+
+			if (nsa->counters[j].val == nsb->counters[i].val) {
+				j++;
+				continue;
+			}
+
+			__netstat_print_diff(nsa->counters[j].val, nsb, i);
+			j++;
+		}
+		if (j != nsa->counters_nr)
+			test_error("Unexpected: some counters disappeared!");
+
+		nsb = nsb->next;
+		nsa = nsa->next;
+	}
+}
+
+uint64_t netstat_get(struct netstat *ns, const char *name, bool *not_found)
+{
+	if (not_found)
+		*not_found = false;
+
+	while (ns != NULL) {
+		size_t i;
+
+		for (i = 0; i < ns->counters_nr; i++) {
+			if (!strcmp(name, ns->counters[i].name))
+				return ns->counters[i].val;
+		}
+
+		ns = ns->next;
+	}
+
+	if (not_found)
+		*not_found = true;
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/repair.c b/tools/testing/selftests/net/tcp_ao/lib/repair.c
new file mode 100644
index 000000000000..9893b3ba69f5
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/repair.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0
+/* This is over-simplified TCP_REPAIR for TCP_ESTABLISHED sockets
+ * It tests that TCP-AO enabled connection can be restored.
+ * For the proper socket repair see:
+ * https://github.com/checkpoint-restore/criu/blob/criu-dev/soccr/soccr.h
+ */
+#include <fcntl.h>
+#include <linux/sockios.h>
+#include <sys/ioctl.h>
+#include "aolib.h"
+
+#ifndef TCPOPT_MAXSEG
+# define TCPOPT_MAXSEG		2
+#endif
+#ifndef TCPOPT_WINDOW
+# define TCPOPT_WINDOW		3
+#endif
+#ifndef TCPOPT_SACK_PERMITTED
+# define TCPOPT_SACK_PERMITTED	4
+#endif
+#ifndef TCPOPT_TIMESTAMP
+# define TCPOPT_TIMESTAMP	8
+#endif
+
+enum {
+	TCP_ESTABLISHED = 1,
+	TCP_SYN_SENT,
+	TCP_SYN_RECV,
+	TCP_FIN_WAIT1,
+	TCP_FIN_WAIT2,
+	TCP_TIME_WAIT,
+	TCP_CLOSE,
+	TCP_CLOSE_WAIT,
+	TCP_LAST_ACK,
+	TCP_LISTEN,
+	TCP_CLOSING,	/* Now a valid state */
+	TCP_NEW_SYN_RECV,
+
+	TCP_MAX_STATES	/* Leave at the end! */
+};
+
+static void test_sock_checkpoint_queue(int sk, int queue, int qlen,
+				       struct tcp_sock_queue *q)
+{
+	socklen_t len;
+	int ret;
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_QUEUE, &queue, sizeof(queue)))
+		test_error("setsockopt(TCP_REPAIR_QUEUE)");
+
+	len = sizeof(q->seq);
+	ret = getsockopt(sk, SOL_TCP, TCP_QUEUE_SEQ, &q->seq, &len);
+	if (ret || len != sizeof(q->seq))
+		test_error("getsockopt(TCP_QUEUE_SEQ): %d", (int)len);
+
+	if (!qlen) {
+		q->buf = NULL;
+		return;
+	}
+
+	q->buf = malloc(qlen);
+	if (q->buf == NULL)
+		test_error("malloc()");
+	ret = recv(sk, q->buf, qlen, MSG_PEEK | MSG_DONTWAIT);
+	if (ret != qlen)
+		test_error("recv(%d): %d", qlen, ret);
+}
+
+void __test_sock_checkpoint(int sk, struct tcp_sock_state *state,
+			    void *addr, size_t addr_size)
+{
+	socklen_t len = sizeof(state->info);
+	int ret;
+
+	memset(state, 0, sizeof(*state));
+
+	ret = getsockopt(sk, SOL_TCP, TCP_INFO, &state->info, &len);
+	if (ret || len != sizeof(state->info))
+		test_error("getsockopt(TCP_INFO): %d", (int)len);
+
+	len = addr_size;
+	if (getsockname(sk, addr, &len) || len != addr_size)
+		test_error("getsockname(): %d", (int)len);
+
+	len = sizeof(state->trw);
+	ret = getsockopt(sk, SOL_TCP, TCP_REPAIR_WINDOW, &state->trw, &len);
+	if (ret || len != sizeof(state->trw))
+		test_error("getsockopt(TCP_REPAIR_WINDOW): %d", (int)len);
+
+	if (ioctl(sk, SIOCOUTQ, &state->outq_len))
+		test_error("ioctl(SIOCOUTQ)");
+
+	if (ioctl(sk, SIOCOUTQNSD, &state->outq_nsd_len))
+		test_error("ioctl(SIOCOUTQNSD)");
+	test_sock_checkpoint_queue(sk, TCP_SEND_QUEUE, state->outq_len, &state->out);
+
+	if (ioctl(sk, SIOCINQ, &state->inq_len))
+		test_error("ioctl(SIOCINQ)");
+	test_sock_checkpoint_queue(sk, TCP_RECV_QUEUE, state->inq_len, &state->in);
+
+	if (state->info.tcpi_state == TCP_CLOSE)
+		state->outq_len = state->outq_nsd_len = 0;
+
+	len = sizeof(state->mss);
+	ret = getsockopt(sk, SOL_TCP, TCP_MAXSEG, &state->mss, &len);
+	if (ret || len != sizeof(state->mss))
+		test_error("getsockopt(TCP_MAXSEG): %d", (int)len);
+
+	len = sizeof(state->timestamp);
+	ret = getsockopt(sk, SOL_TCP, TCP_TIMESTAMP, &state->timestamp, &len);
+	if (ret || len != sizeof(state->timestamp))
+		test_error("getsockopt(TCP_TIMESTAMP): %d", (int)len);
+}
+
+void test_ao_checkpoint(int sk, struct tcp_ao_repair *state)
+{
+	socklen_t len = sizeof(*state);
+	int ret;
+
+	memset(state, 0, sizeof(*state));
+
+	ret = getsockopt(sk, SOL_TCP, TCP_AO_REPAIR, state, &len);
+	if (ret || len != sizeof(*state))
+		test_error("getsockopt(TCP_AO_REPAIR): %d", (int)len);
+}
+
+static void test_sock_restore_seq(int sk, int queue, uint32_t seq)
+{
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_QUEUE, &queue, sizeof(queue)))
+		test_error("setsockopt(TCP_REPAIR_QUEUE)");
+
+	if (setsockopt(sk, SOL_TCP, TCP_QUEUE_SEQ, &seq, sizeof(seq)))
+		test_error("setsockopt(TCP_QUEUE_SEQ)");
+}
+
+static void test_sock_restore_queue(int sk, int queue, void *buf, int len)
+{
+	int chunk = len;
+	size_t off = 0;
+
+	if (len == 0)
+		return;
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_QUEUE, &queue, sizeof(queue)))
+		test_error("setsockopt(TCP_REPAIR_QUEUE)");
+
+	do {
+		int ret;
+
+		ret = send(sk, buf + off, chunk, 0);
+		if (ret <= 0) {
+			if (chunk > 1024) {
+				chunk >>= 1;
+				continue;
+			}
+			test_error("send()");
+		}
+		off += ret;
+		len -= ret;
+	} while (len > 0);
+}
+
+void __test_sock_restore(int sk, const char *device,
+			 struct tcp_sock_state *state,
+			 void *saddr, void *daddr, size_t addr_size)
+{
+	struct tcp_repair_opt opts[4];
+	unsigned int opt_nr = 0;
+	long flags;
+
+	if (bind(sk, saddr, addr_size))
+		test_error("bind()");
+
+	flags = fcntl(sk, F_GETFL);
+	if ((flags < 0) || (fcntl(sk, F_SETFL, flags | O_NONBLOCK) < 0))
+		test_error("fcntl()");
+
+	test_sock_restore_seq(sk, TCP_RECV_QUEUE, state->in.seq - state->inq_len);
+	test_sock_restore_seq(sk, TCP_SEND_QUEUE, state->out.seq - state->outq_len);
+
+	if (device != NULL && setsockopt(sk, SOL_SOCKET, SO_BINDTODEVICE,
+					 device, strlen(device) + 1))
+		test_error("setsockopt(SO_BINDTODEVICE, %s)", device);
+
+	if (connect(sk, daddr, addr_size))
+		test_error("connect()");
+
+	if (state->info.tcpi_options & TCPI_OPT_SACK) {
+		opts[opt_nr].opt_code = TCPOPT_SACK_PERMITTED;
+		opts[opt_nr].opt_val = 0;
+		opt_nr++;
+	}
+	if (state->info.tcpi_options & TCPI_OPT_WSCALE) {
+		opts[opt_nr].opt_code = TCPOPT_WINDOW;
+		opts[opt_nr].opt_val = state->info.tcpi_snd_wscale +
+				(state->info.tcpi_rcv_wscale << 16);
+		opt_nr++;
+	}
+	if (state->info.tcpi_options & TCPI_OPT_TIMESTAMPS) {
+		opts[opt_nr].opt_code = TCPOPT_TIMESTAMP;
+		opts[opt_nr].opt_val = 0;
+		opt_nr++;
+	}
+	opts[opt_nr].opt_code = TCPOPT_MAXSEG;
+	opts[opt_nr].opt_val = state->mss;
+	opt_nr++;
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_OPTIONS, opts, opt_nr * sizeof(opts[0])))
+		test_error("setsockopt(TCP_REPAIR_OPTIONS)");
+
+	if (state->info.tcpi_options & TCPI_OPT_TIMESTAMPS) {
+		if (setsockopt(sk, SOL_TCP, TCP_TIMESTAMP,
+			       &state->timestamp, opt_nr * sizeof(opts[0])))
+			test_error("setsockopt(TCP_TIMESTAMP)");
+	}
+	test_sock_restore_queue(sk, TCP_RECV_QUEUE, state->in.buf, state->inq_len);
+	test_sock_restore_queue(sk, TCP_SEND_QUEUE, state->out.buf, state->outq_len);
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR_WINDOW, &state->trw, sizeof(state->trw)))
+		test_error("setsockopt(TCP_REPAIR_WINDOW)");
+}
+
+void test_ao_restore(int sk, struct tcp_ao_repair *state)
+{
+	if (setsockopt(sk, SOL_TCP, TCP_AO_REPAIR, state, sizeof(*state)))
+		test_error("setsockopt(TCP_AO_REPAIR)");
+}
+
+void test_sock_state_free(struct tcp_sock_state *state)
+{
+	free(state->out.buf);
+	free(state->in.buf);
+}
+
+void test_enable_repair(int sk)
+{
+	int val = TCP_REPAIR_ON;
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR, &val, sizeof(val)))
+		test_error("setsockopt(TCP_REPAIR)");
+}
+
+void test_disable_repair(int sk)
+{
+	int val = TCP_REPAIR_OFF_NO_WP;
+
+	if (setsockopt(sk, SOL_TCP, TCP_REPAIR, &val, sizeof(val)))
+		test_error("setsockopt(TCP_REPAIR)");
+}
+
+void test_kill_sk(int sk)
+{
+	test_enable_repair(sk);
+	close(sk);
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/setup.c b/tools/testing/selftests/net/tcp_ao/lib/setup.c
new file mode 100644
index 000000000000..49aec2922a31
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/setup.c
@@ -0,0 +1,368 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include "aolib.h"
+
+/*
+ * Can't be included in the header: it defines static variables which
+ * will be unique to every object. Let's include it only once here.
+ */
+#include "kselftest.h"
+
+/* Prevent overriding of one thread's output by another */
+static pthread_mutex_t ksft_print_lock = PTHREAD_MUTEX_INITIALIZER;
+
+void __test_msg(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_print_msg("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+void __test_ok(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_test_result_pass("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+void __test_fail(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_test_result_fail("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+void __test_xfail(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_test_result_xfail("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+void __test_error(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_test_result_error("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+void __test_skip(const char *buf)
+{
+	pthread_mutex_lock(&ksft_print_lock);
+	ksft_test_result_skip("%s", buf);
+	pthread_mutex_unlock(&ksft_print_lock);
+}
+
+static volatile int failed;
+static volatile int skipped;
+
+void test_failed(void)
+{
+	failed = 1;
+}
+
+static void test_exit(void)
+{
+	if (failed) {
+		ksft_exit_fail();
+	} else if (skipped) {
+		/* ksft_exit_skip() is different from ksft_exit_*() */
+		ksft_print_cnts();
+		exit(KSFT_SKIP);
+	} else {
+		ksft_exit_pass();
+	}
+}
+
+struct dlist_t {
+	void (*destruct)(void);
+	struct dlist_t *next;
+};
+static struct dlist_t *destructors_list;
+
+void test_add_destructor(void (*d)(void))
+{
+	struct dlist_t *p;
+
+	p = malloc(sizeof(struct dlist_t));
+	if (p == NULL)
+		test_error("malloc() failed");
+
+	p->next = destructors_list;
+	p->destruct = d;
+	destructors_list = p;
+}
+
+static void test_destructor(void) __attribute__((destructor));
+static void test_destructor(void)
+{
+	while (destructors_list) {
+		struct dlist_t *p = destructors_list->next;
+
+		destructors_list->destruct();
+		free(destructors_list);
+		destructors_list = p;
+	}
+	test_exit();
+}
+
+static void sig_int(int signo)
+{
+	test_error("Caught SIGINT - exiting");
+}
+
+int open_netns(void)
+{
+	const char *netns_path = "/proc/thread-self/ns/net";
+	int fd;
+
+	fd = open(netns_path, O_RDONLY);
+	if (fd < 0)
+		test_error("open(%s)", netns_path);
+	return fd;
+}
+
+int unshare_open_netns(void)
+{
+	if (unshare(CLONE_NEWNET) != 0)
+		test_error("unshare()");
+
+	return open_netns();
+}
+
+void switch_ns(int fd)
+{
+	if (setns(fd, CLONE_NEWNET))
+		test_error("setns()");
+}
+
+int switch_save_ns(int new_ns)
+{
+	int ret = open_netns();
+
+	switch_ns(new_ns);
+	return ret;
+}
+
+void switch_close_ns(int fd)
+{
+	if (setns(fd, CLONE_NEWNET))
+		test_error("setns()");
+	close(fd);
+}
+
+static int nsfd_outside	= -1;
+static int nsfd_parent	= -1;
+static int nsfd_child	= -1;
+const char veth_name[]	= "ktst-veth";
+
+static void init_namespaces(void)
+{
+	nsfd_outside = open_netns();
+	nsfd_parent = unshare_open_netns();
+	nsfd_child = unshare_open_netns();
+}
+
+static void link_init(const char *veth, int family, uint8_t prefix,
+		      union tcp_addr addr, union tcp_addr dest)
+{
+	if (link_set_up(veth))
+		test_error("Failed to set link up");
+	if (ip_addr_add(veth, family, addr, prefix))
+		test_error("Failed to add ip address");
+	if (ip_route_add(veth, family, addr, dest))
+		test_error("Failed to add route");
+}
+
+static unsigned int nr_threads = 1;
+
+static pthread_mutex_t sync_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t sync_cond = PTHREAD_COND_INITIALIZER;
+static volatile unsigned int stage_threads[2];
+static volatile unsigned int stage_nr;
+
+/* synchronize all threads in the same stage */
+void synchronize_threads(void)
+{
+	unsigned int q = stage_nr;
+
+	pthread_mutex_lock(&sync_lock);
+	stage_threads[q]++;
+	if (stage_threads[q] == nr_threads) {
+		stage_nr ^= 1;
+		stage_threads[stage_nr] = 0;
+		pthread_cond_signal(&sync_cond);
+	}
+	while (stage_threads[q] < nr_threads)
+		pthread_cond_wait(&sync_cond, &sync_lock);
+	pthread_mutex_unlock(&sync_lock);
+}
+
+__thread union tcp_addr this_ip_addr;
+__thread union tcp_addr this_ip_dest;
+int test_family;
+
+struct new_pthread_arg {
+	thread_fn	func;
+	union tcp_addr	my_ip;
+	union tcp_addr	dest_ip;
+};
+static void *new_pthread_entry(void *arg)
+{
+	struct new_pthread_arg *p = arg;
+
+	this_ip_addr = p->my_ip;
+	this_ip_dest = p->dest_ip;
+	p->func(NULL); /* shouldn't return */
+	exit(KSFT_FAIL);
+}
+
+static void __test_skip_all(const char *msg)
+{
+	ksft_set_plan(1);
+	ksft_print_header();
+	skipped = 1;
+	test_skip("%s", msg);
+	exit(KSFT_SKIP);
+}
+
+void __test_init(unsigned int ntests, int family, unsigned int prefix,
+		 union tcp_addr addr1, union tcp_addr addr2,
+		 thread_fn peer1, thread_fn peer2)
+{
+	struct sigaction sa = {
+		.sa_handler = sig_int,
+		.sa_flags = SA_RESTART,
+	};
+	time_t seed = time(NULL);
+
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGINT, &sa, NULL))
+		test_error("Can't set SIGINT handler");
+
+	test_family = family;
+	if (!kernel_config_has(KCONFIG_NET_NS))
+		__test_skip_all(tests_skip_reason[KCONFIG_NET_NS]);
+	if (!kernel_config_has(KCONFIG_VETH))
+		__test_skip_all(tests_skip_reason[KCONFIG_VETH]);
+	if (!kernel_config_has(KCONFIG_TCP_AO))
+		__test_skip_all(tests_skip_reason[KCONFIG_TCP_AO]);
+
+	ksft_set_plan(ntests);
+	test_print("rand seed %u", (unsigned int)seed);
+	srand(seed);
+
+	ksft_print_header();
+	init_namespaces();
+	test_init_ftrace(nsfd_parent, nsfd_child);
+
+	if (add_veth(veth_name, nsfd_parent, nsfd_child))
+		test_error("Failed to add veth");
+
+	switch_ns(nsfd_child);
+	link_init(veth_name, family, prefix, addr2, addr1);
+	if (peer2) {
+		struct new_pthread_arg targ;
+		pthread_t t;
+
+		targ.my_ip = addr2;
+		targ.dest_ip = addr1;
+		targ.func = peer2;
+		nr_threads++;
+		if (pthread_create(&t, NULL, new_pthread_entry, &targ))
+			test_error("Failed to create pthread");
+	}
+	switch_ns(nsfd_parent);
+	link_init(veth_name, family, prefix, addr1, addr2);
+
+	this_ip_addr = addr1;
+	this_ip_dest = addr2;
+	peer1(NULL);
+	if (failed)
+		exit(KSFT_FAIL);
+	else
+		exit(KSFT_PASS);
+}
+
+/* /proc/sys/net/core/optmem_max artifically limits the amount of memory
+ * that can be allocated with sock_kmalloc() on each socket in the system.
+ * It is not virtualized in v6.7, so it has to written outside test
+ * namespaces. To be nice a test will revert optmem back to the old value.
+ * Keeping it simple without any file lock, which means the tests that
+ * need to set/increase optmem value shouldn't run in parallel.
+ * Also, not re-entrant.
+ * Since commit f5769faeec36 ("net: Namespace-ify sysctl_optmem_max")
+ * it is per-namespace, keeping logic for non-virtualized optmem_max
+ * for v6.7, which supports TCP-AO.
+ */
+static const char *optmem_file = "/proc/sys/net/core/optmem_max";
+static size_t saved_optmem;
+static int optmem_ns = -1;
+
+static bool is_optmem_namespaced(void)
+{
+	if (optmem_ns == -1) {
+		int old_ns = switch_save_ns(nsfd_child);
+
+		optmem_ns = !access(optmem_file, F_OK);
+		switch_close_ns(old_ns);
+	}
+	return !!optmem_ns;
+}
+
+size_t test_get_optmem(void)
+{
+	int old_ns = 0;
+	FILE *foptmem;
+	size_t ret;
+
+	if (!is_optmem_namespaced())
+		old_ns = switch_save_ns(nsfd_outside);
+	foptmem = fopen(optmem_file, "r");
+	if (!foptmem)
+		test_error("failed to open %s", optmem_file);
+
+	if (fscanf(foptmem, "%zu", &ret) != 1)
+		test_error("can't read from %s", optmem_file);
+	fclose(foptmem);
+	if (!is_optmem_namespaced())
+		switch_close_ns(old_ns);
+	return ret;
+}
+
+static void __test_set_optmem(size_t new, size_t *old)
+{
+	int old_ns = 0;
+	FILE *foptmem;
+
+	if (old != NULL)
+		*old = test_get_optmem();
+
+	if (!is_optmem_namespaced())
+		old_ns = switch_save_ns(nsfd_outside);
+	foptmem = fopen(optmem_file, "w");
+	if (!foptmem)
+		test_error("failed to open %s", optmem_file);
+
+	if (fprintf(foptmem, "%zu", new) <= 0)
+		test_error("can't write %zu to %s", new, optmem_file);
+	fclose(foptmem);
+	if (!is_optmem_namespaced())
+		switch_close_ns(old_ns);
+}
+
+static void test_revert_optmem(void)
+{
+	if (saved_optmem == 0)
+		return;
+
+	__test_set_optmem(saved_optmem, NULL);
+}
+
+void test_set_optmem(size_t value)
+{
+	if (saved_optmem == 0) {
+		__test_set_optmem(value, &saved_optmem);
+		test_add_destructor(test_revert_optmem);
+	} else {
+		__test_set_optmem(value, NULL);
+	}
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/sock.c b/tools/testing/selftests/net/tcp_ao/lib/sock.c
new file mode 100644
index 000000000000..ef8e9031d47a
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/sock.c
@@ -0,0 +1,730 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <alloca.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <string.h>
+#include "../../../../../include/linux/kernel.h"
+#include "../../../../../include/linux/stringify.h"
+#include "aolib.h"
+
+const unsigned int test_server_port = 7010;
+int __test_listen_socket(int backlog, void *addr, size_t addr_sz)
+{
+	int err, sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	long flags;
+
+	if (sk < 0)
+		test_error("socket()");
+
+	err = setsockopt(sk, SOL_SOCKET, SO_BINDTODEVICE, veth_name,
+			 strlen(veth_name) + 1);
+	if (err < 0)
+		test_error("setsockopt(SO_BINDTODEVICE)");
+
+	if (bind(sk, (struct sockaddr *)addr, addr_sz) < 0)
+		test_error("bind()");
+
+	flags = fcntl(sk, F_GETFL);
+	if ((flags < 0) || (fcntl(sk, F_SETFL, flags | O_NONBLOCK) < 0))
+		test_error("fcntl()");
+
+	if (listen(sk, backlog))
+		test_error("listen()");
+
+	return sk;
+}
+
+static int __test_wait_fd(int sk, struct timeval *tv, bool write)
+{
+	fd_set fds, efds;
+	int ret;
+	socklen_t slen = sizeof(ret);
+
+	FD_ZERO(&fds);
+	FD_SET(sk, &fds);
+	FD_ZERO(&efds);
+	FD_SET(sk, &efds);
+
+	errno = 0;
+	if (write)
+		ret = select(sk + 1, NULL, &fds, &efds, tv);
+	else
+		ret = select(sk + 1, &fds, NULL, &efds, tv);
+	if (ret < 0)
+		return -errno;
+	if (ret == 0) {
+		errno = ETIMEDOUT;
+		return -ETIMEDOUT;
+	}
+
+	if (getsockopt(sk, SOL_SOCKET, SO_ERROR, &ret, &slen))
+		return -errno;
+	if (ret)
+		return -ret;
+	return 0;
+}
+
+int test_wait_fd(int sk, time_t sec, bool write)
+{
+	struct timeval tv = { .tv_sec = sec, };
+
+	return __test_wait_fd(sk, sec ? &tv : NULL, write);
+}
+
+static bool __skpair_poll_should_stop(int sk, struct tcp_counters *c,
+				      test_cnt condition)
+{
+	struct tcp_counters c2;
+	test_cnt diff;
+
+	if (test_get_tcp_counters(sk, &c2))
+		test_error("test_get_tcp_counters()");
+
+	diff = test_cmp_counters(c, &c2);
+	test_tcp_counters_free(&c2);
+	return (diff & condition) == condition;
+}
+
+/* How often wake up and check netns counters & paired (*err) */
+#define POLL_USEC	150
+static int __test_skpair_poll(int sk, bool write, uint64_t timeout,
+			      struct tcp_counters *c, test_cnt cond,
+			      volatile int *err)
+{
+	uint64_t t;
+
+	for (t = 0; t <= timeout * 1000000; t += POLL_USEC) {
+		struct timeval tv = { .tv_usec = POLL_USEC, };
+		int ret;
+
+		ret = __test_wait_fd(sk, &tv, write);
+		if (ret != -ETIMEDOUT)
+			return ret;
+		if (c && cond && __skpair_poll_should_stop(sk, c, cond))
+			break;
+		if (err && *err)
+			return *err;
+	}
+	if (err)
+		*err = -ETIMEDOUT;
+	return -ETIMEDOUT;
+}
+
+int __test_connect_socket(int sk, const char *device,
+			  void *addr, size_t addr_sz, bool async)
+{
+	long flags;
+	int err;
+
+	if (device != NULL) {
+		err = setsockopt(sk, SOL_SOCKET, SO_BINDTODEVICE, device,
+				 strlen(device) + 1);
+		if (err < 0)
+			test_error("setsockopt(SO_BINDTODEVICE, %s)", device);
+	}
+
+	flags = fcntl(sk, F_GETFL);
+	if ((flags < 0) || (fcntl(sk, F_SETFL, flags | O_NONBLOCK) < 0))
+		test_error("fcntl()");
+
+	if (connect(sk, addr, addr_sz) < 0) {
+		if (errno != EINPROGRESS) {
+			err = -errno;
+			goto out;
+		}
+		if (async)
+			return sk;
+		err = test_wait_fd(sk, TEST_TIMEOUT_SEC, 1);
+		if (err)
+			goto out;
+	}
+	return sk;
+
+out:
+	close(sk);
+	return err;
+}
+
+int test_skpair_wait_poll(int sk, bool write,
+			  test_cnt cond, volatile int *err)
+{
+	struct tcp_counters c;
+	int ret;
+
+	*err = 0;
+	if (test_get_tcp_counters(sk, &c))
+		test_error("test_get_tcp_counters()");
+	synchronize_threads(); /* 1: init skpair & read nscounters */
+
+	ret = __test_skpair_poll(sk, write, TEST_TIMEOUT_SEC, &c, cond, err);
+	test_tcp_counters_free(&c);
+	return ret;
+}
+
+int _test_skpair_connect_poll(int sk, const char *device,
+			      void *addr, size_t addr_sz,
+			      test_cnt condition, volatile int *err)
+{
+	struct tcp_counters c;
+	int ret;
+
+	*err = 0;
+	if (test_get_tcp_counters(sk, &c))
+		test_error("test_get_tcp_counters()");
+	synchronize_threads(); /* 1: init skpair & read nscounters */
+	ret = __test_connect_socket(sk, device, addr, addr_sz, true);
+	if (ret < 0) {
+		test_tcp_counters_free(&c);
+		return (*err = ret);
+	}
+	ret = __test_skpair_poll(sk, 1, TEST_TIMEOUT_SEC, &c, condition, err);
+	if (ret < 0)
+		close(sk);
+	test_tcp_counters_free(&c);
+	return ret;
+}
+
+int __test_set_md5(int sk, void *addr, size_t addr_sz, uint8_t prefix,
+		   int vrf, const char *password)
+{
+	size_t pwd_len = strlen(password);
+	struct tcp_md5sig md5sig = {};
+
+	md5sig.tcpm_keylen = pwd_len;
+	memcpy(md5sig.tcpm_key, password, pwd_len);
+	md5sig.tcpm_flags = TCP_MD5SIG_FLAG_PREFIX;
+	md5sig.tcpm_prefixlen = prefix;
+	if (vrf >= 0) {
+		md5sig.tcpm_flags |= TCP_MD5SIG_FLAG_IFINDEX;
+		md5sig.tcpm_ifindex = (uint8_t)vrf;
+	}
+	memcpy(&md5sig.tcpm_addr, addr, addr_sz);
+
+	errno = 0;
+	return setsockopt(sk, IPPROTO_TCP, TCP_MD5SIG_EXT,
+			&md5sig, sizeof(md5sig));
+}
+
+
+int test_prepare_key_sockaddr(struct tcp_ao_add *ao, const char *alg,
+		void *addr, size_t addr_sz, bool set_current, bool set_rnext,
+		uint8_t prefix, uint8_t vrf, uint8_t sndid, uint8_t rcvid,
+		uint8_t maclen, uint8_t keyflags,
+		uint8_t keylen, const char *key)
+{
+	memset(ao, 0, sizeof(struct tcp_ao_add));
+
+	ao->set_current	= !!set_current;
+	ao->set_rnext	= !!set_rnext;
+	ao->prefix	= prefix;
+	ao->sndid	= sndid;
+	ao->rcvid	= rcvid;
+	ao->maclen	= maclen;
+	ao->keyflags	= keyflags;
+	ao->keylen	= keylen;
+	ao->ifindex	= vrf;
+
+	memcpy(&ao->addr, addr, addr_sz);
+
+	if (strlen(alg) > 64)
+		return -ENOBUFS;
+	strncpy(ao->alg_name, alg, 64);
+
+	memcpy(ao->key, key,
+	       (keylen > TCP_AO_MAXKEYLEN) ? TCP_AO_MAXKEYLEN : keylen);
+	return 0;
+}
+
+static int test_get_ao_keys_nr(int sk)
+{
+	struct tcp_ao_getsockopt tmp = {};
+	socklen_t tmp_sz = sizeof(tmp);
+	int ret;
+
+	tmp.nkeys  = 1;
+	tmp.get_all = 1;
+
+	ret = getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, &tmp, &tmp_sz);
+	if (ret)
+		return -errno;
+	return (int)tmp.nkeys;
+}
+
+int test_get_one_ao(int sk, struct tcp_ao_getsockopt *out,
+		void *addr, size_t addr_sz, uint8_t prefix,
+		uint8_t sndid, uint8_t rcvid)
+{
+	struct tcp_ao_getsockopt tmp = {};
+	socklen_t tmp_sz = sizeof(tmp);
+	int ret;
+
+	memcpy(&tmp.addr, addr, addr_sz);
+	tmp.prefix = prefix;
+	tmp.sndid  = sndid;
+	tmp.rcvid  = rcvid;
+	tmp.nkeys  = 1;
+
+	ret = getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, &tmp, &tmp_sz);
+	if (ret)
+		return ret;
+	if (tmp.nkeys != 1)
+		return -E2BIG;
+	*out = tmp;
+	return 0;
+}
+
+int test_get_ao_info(int sk, struct tcp_ao_info_opt *out)
+{
+	socklen_t sz = sizeof(*out);
+
+	out->reserved = 0;
+	out->reserved2 = 0;
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, out, &sz))
+		return -errno;
+	if (sz != sizeof(*out))
+		return -EMSGSIZE;
+	return 0;
+}
+
+int test_set_ao_info(int sk, struct tcp_ao_info_opt *in)
+{
+	socklen_t sz = sizeof(*in);
+
+	in->reserved = 0;
+	in->reserved2 = 0;
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, in, sz))
+		return -errno;
+	return 0;
+}
+
+int test_cmp_getsockopt_setsockopt(const struct tcp_ao_add *a,
+				   const struct tcp_ao_getsockopt *b)
+{
+	bool is_kdf_aes_128_cmac = false;
+	bool is_cmac_aes = false;
+
+	if (!strcmp("cmac(aes128)", a->alg_name)) {
+		is_kdf_aes_128_cmac = (a->keylen != 16);
+		is_cmac_aes = true;
+	}
+
+#define __cmp_ao(member)						\
+do {									\
+	if (b->member != a->member) {					\
+		test_fail("getsockopt(): " __stringify(member) " %u != %u",	\
+				b->member, a->member);			\
+		return -1;						\
+	}								\
+} while(0)
+	__cmp_ao(sndid);
+	__cmp_ao(rcvid);
+	__cmp_ao(prefix);
+	__cmp_ao(keyflags);
+	__cmp_ao(ifindex);
+	if (a->maclen) {
+		__cmp_ao(maclen);
+	} else if (b->maclen != 12) {
+		test_fail("getsockopt(): expected default maclen 12, but it's %u",
+				b->maclen);
+		return -1;
+	}
+	if (!is_kdf_aes_128_cmac) {
+		__cmp_ao(keylen);
+	} else if (b->keylen != 16) {
+		test_fail("getsockopt(): expected keylen 16 for cmac(aes128), but it's %u",
+				b->keylen);
+		return -1;
+	}
+#undef __cmp_ao
+	if (!is_kdf_aes_128_cmac && memcmp(b->key, a->key, a->keylen)) {
+		test_fail("getsockopt(): returned key is different `%s' != `%s'",
+				b->key, a->key);
+		return -1;
+	}
+	if (memcmp(&b->addr, &a->addr, sizeof(b->addr))) {
+		test_fail("getsockopt(): returned address is different");
+		return -1;
+	}
+	if (!is_cmac_aes && strcmp(b->alg_name, a->alg_name)) {
+		test_fail("getsockopt(): returned algorithm %s is different than %s", b->alg_name, a->alg_name);
+		return -1;
+	}
+	if (is_cmac_aes && strcmp(b->alg_name, "cmac(aes)")) {
+		test_fail("getsockopt(): returned algorithm %s is different than cmac(aes)", b->alg_name);
+		return -1;
+	}
+	/* For a established key rotation test don't add a key with
+	 * set_current = 1, as it's likely to change by peer's request;
+	 * rather use setsockopt(TCP_AO_INFO)
+	 */
+	if (a->set_current != b->is_current) {
+		test_fail("getsockopt(): returned key is not Current_key");
+		return -1;
+	}
+	if (a->set_rnext != b->is_rnext) {
+		test_fail("getsockopt(): returned key is not RNext_key");
+		return -1;
+	}
+
+	return 0;
+}
+
+int test_cmp_getsockopt_setsockopt_ao(const struct tcp_ao_info_opt *a,
+				      const struct tcp_ao_info_opt *b)
+{
+	/* No check for ::current_key, as it may change by the peer */
+	if (a->ao_required != b->ao_required) {
+		test_fail("getsockopt(): returned ao doesn't have ao_required");
+		return -1;
+	}
+	if (a->accept_icmps != b->accept_icmps) {
+		test_fail("getsockopt(): returned ao doesn't accept ICMPs");
+		return -1;
+	}
+	if (a->set_rnext && a->rnext != b->rnext) {
+		test_fail("getsockopt(): RNext KeyID has changed");
+		return -1;
+	}
+#define __cmp_cnt(member)						\
+do {									\
+	if (b->member != a->member) {					\
+		test_fail("getsockopt(): " __stringify(member) " %llu != %llu",	\
+				b->member, a->member);			\
+		return -1;						\
+	}								\
+} while(0)
+	if (a->set_counters) {
+		__cmp_cnt(pkt_good);
+		__cmp_cnt(pkt_bad);
+		__cmp_cnt(pkt_key_not_found);
+		__cmp_cnt(pkt_ao_required);
+		__cmp_cnt(pkt_dropped_icmp);
+	}
+#undef __cmp_cnt
+	return 0;
+}
+
+int test_get_tcp_counters(int sk, struct tcp_counters *out)
+{
+	struct tcp_ao_getsockopt *key_dump;
+	socklen_t key_dump_sz = sizeof(*key_dump);
+	struct tcp_ao_info_opt info = {};
+	bool c1, c2, c3, c4, c5, c6, c7, c8;
+	struct netstat *ns;
+	int err, nr_keys;
+
+	memset(out, 0, sizeof(*out));
+
+	/* per-netns */
+	ns = netstat_read();
+	out->ao.netns_ao_good = netstat_get(ns, "TCPAOGood", &c1);
+	out->ao.netns_ao_bad = netstat_get(ns, "TCPAOBad", &c2);
+	out->ao.netns_ao_key_not_found = netstat_get(ns, "TCPAOKeyNotFound", &c3);
+	out->ao.netns_ao_required = netstat_get(ns, "TCPAORequired", &c4);
+	out->ao.netns_ao_dropped_icmp = netstat_get(ns, "TCPAODroppedIcmps", &c5);
+	out->netns_md5_notfound = netstat_get(ns, "TCPMD5NotFound", &c6);
+	out->netns_md5_unexpected = netstat_get(ns, "TCPMD5Unexpected", &c7);
+	out->netns_md5_failure = netstat_get(ns, "TCPMD5Failure", &c8);
+	netstat_free(ns);
+	if (c1 || c2 || c3 || c4 || c5 || c6 || c7 || c8)
+		return -EOPNOTSUPP;
+
+	err = test_get_ao_info(sk, &info);
+	if (err == -ENOENT)
+		return 0;
+	if (err)
+		return err;
+
+	/* per-socket */
+	out->ao.ao_info_pkt_good = info.pkt_good;
+	out->ao.ao_info_pkt_bad = info.pkt_bad;
+	out->ao.ao_info_pkt_key_not_found = info.pkt_key_not_found;
+	out->ao.ao_info_pkt_ao_required = info.pkt_ao_required;
+	out->ao.ao_info_pkt_dropped_icmp = info.pkt_dropped_icmp;
+
+	/* per-key */
+	nr_keys = test_get_ao_keys_nr(sk);
+	if (nr_keys < 0)
+		return nr_keys;
+	if (nr_keys == 0)
+		test_error("test_get_ao_keys_nr() == 0");
+	out->ao.nr_keys = (size_t)nr_keys;
+	key_dump = calloc(nr_keys, key_dump_sz);
+	if (!key_dump)
+		return -errno;
+
+	key_dump[0].nkeys = nr_keys;
+	key_dump[0].get_all = 1;
+	err = getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS,
+			 key_dump, &key_dump_sz);
+	if (err) {
+		free(key_dump);
+		return -errno;
+	}
+
+	out->ao.key_cnts = calloc(nr_keys, sizeof(out->ao.key_cnts[0]));
+	if (!out->ao.key_cnts) {
+		free(key_dump);
+		return -errno;
+	}
+
+	while (nr_keys--) {
+		out->ao.key_cnts[nr_keys].sndid = key_dump[nr_keys].sndid;
+		out->ao.key_cnts[nr_keys].rcvid = key_dump[nr_keys].rcvid;
+		out->ao.key_cnts[nr_keys].pkt_good = key_dump[nr_keys].pkt_good;
+		out->ao.key_cnts[nr_keys].pkt_bad = key_dump[nr_keys].pkt_bad;
+	}
+	free(key_dump);
+
+	return 0;
+}
+
+test_cnt test_cmp_counters(struct tcp_counters *before,
+			   struct tcp_counters *after)
+{
+#define __cmp(cnt, e_cnt)						\
+do {									\
+	if (before->cnt > after->cnt)					\
+		test_error("counter " __stringify(cnt) " decreased");	\
+	if (before->cnt != after->cnt)					\
+		ret |= e_cnt;						\
+} while (0)
+
+	test_cnt ret = 0;
+	size_t i;
+
+	if (before->ao.nr_keys != after->ao.nr_keys)
+		test_error("the number of keys has changed");
+
+	_for_each_counter(__cmp);
+
+	i = before->ao.nr_keys;
+	while (i--) {
+		__cmp(ao.key_cnts[i].pkt_good, TEST_CNT_KEY_GOOD);
+		__cmp(ao.key_cnts[i].pkt_bad, TEST_CNT_KEY_BAD);
+	}
+#undef __cmp
+	return ret;
+}
+
+int test_assert_counters_sk(const char *tst_name,
+			    struct tcp_counters *before,
+			    struct tcp_counters *after,
+			    test_cnt expected)
+{
+#define __cmp_ao(cnt, e_cnt)						\
+do {									\
+	if (before->cnt > after->cnt) {					\
+		test_fail("%s: Decreased counter " __stringify(cnt) " %" PRIu64 " > %" PRIu64, \
+			  tst_name ?: "", before->cnt, after->cnt);	\
+		return -1;						\
+	}								\
+	if ((before->cnt != after->cnt) != !!(expected & e_cnt)) {	\
+		test_fail("%s: Counter " __stringify(cnt) " was %sexpected to increase %" PRIu64 " => %" PRIu64, \
+			  tst_name ?: "", (expected & e_cnt) ? "" : "not ",	\
+			  before->cnt, after->cnt);			\
+		return -1;						\
+	}								\
+} while (0)
+
+	errno = 0;
+	_for_each_counter(__cmp_ao);
+	return 0;
+#undef __cmp_ao
+}
+
+int test_assert_counters_key(const char *tst_name,
+			     struct tcp_ao_counters *before,
+			     struct tcp_ao_counters *after,
+			     test_cnt expected, int sndid, int rcvid)
+{
+	size_t i;
+#define __cmp_ao(i, cnt, e_cnt)					\
+do {									\
+	if (before->key_cnts[i].cnt > after->key_cnts[i].cnt) {		\
+		test_fail("%s: Decreased counter " __stringify(cnt) " %" PRIu64 " > %" PRIu64 " for key %u:%u", \
+			  tst_name ?: "", before->key_cnts[i].cnt,	\
+			  after->key_cnts[i].cnt,			\
+			  before->key_cnts[i].sndid,			\
+			  before->key_cnts[i].rcvid);			\
+		return -1;						\
+	}								\
+	if ((before->key_cnts[i].cnt != after->key_cnts[i].cnt) != !!(expected & e_cnt)) {		\
+		test_fail("%s: Counter " __stringify(cnt) " was %sexpected to increase %" PRIu64 " => %" PRIu64 " for key %u:%u", \
+			  tst_name ?: "", (expected & e_cnt) ? "" : "not ",\
+			  before->key_cnts[i].cnt,			\
+			  after->key_cnts[i].cnt,			\
+			  before->key_cnts[i].sndid,			\
+			  before->key_cnts[i].rcvid);			\
+		return -1;						\
+	}								\
+} while (0)
+
+	if (before->nr_keys != after->nr_keys) {
+		test_fail("%s: Keys changed on the socket %zu != %zu",
+			  tst_name, before->nr_keys, after->nr_keys);
+		return -1;
+	}
+
+	/* per-key */
+	i = before->nr_keys;
+	while (i--) {
+		if (sndid >= 0 && before->key_cnts[i].sndid != sndid)
+			continue;
+		if (rcvid >= 0 && before->key_cnts[i].rcvid != rcvid)
+			continue;
+		__cmp_ao(i, pkt_good, TEST_CNT_KEY_GOOD);
+		__cmp_ao(i, pkt_bad, TEST_CNT_KEY_BAD);
+	}
+	return 0;
+#undef __cmp_ao
+}
+
+void test_tcp_counters_free(struct tcp_counters *cnts)
+{
+	free(cnts->ao.key_cnts);
+}
+
+#define TEST_BUF_SIZE 4096
+static ssize_t _test_server_run(int sk, ssize_t quota, struct tcp_counters *c,
+				test_cnt cond, volatile int *err,
+				time_t timeout_sec)
+{
+	ssize_t total = 0;
+
+	do {
+		char buf[TEST_BUF_SIZE];
+		ssize_t bytes, sent;
+		int ret;
+
+		ret = __test_skpair_poll(sk, 0, timeout_sec, c, cond, err);
+		if (ret)
+			return ret;
+
+		bytes = recv(sk, buf, sizeof(buf), 0);
+
+		if (bytes < 0)
+			test_error("recv(): %zd", bytes);
+		if (bytes == 0)
+			break;
+
+		ret = __test_skpair_poll(sk, 1, timeout_sec, c, cond, err);
+		if (ret)
+			return ret;
+
+		sent = send(sk, buf, bytes, 0);
+		if (sent == 0)
+			break;
+		if (sent != bytes)
+			test_error("send()");
+		total += bytes;
+	} while (!quota || total < quota);
+
+	return total;
+}
+
+ssize_t test_server_run(int sk, ssize_t quota, time_t timeout_sec)
+{
+	return _test_server_run(sk, quota, NULL, 0, NULL,
+				timeout_sec ?: TEST_TIMEOUT_SEC);
+}
+
+int test_skpair_server(int sk, ssize_t quota, test_cnt cond, volatile int *err)
+{
+	struct tcp_counters c;
+	ssize_t ret;
+
+	*err = 0;
+	if (test_get_tcp_counters(sk, &c))
+		test_error("test_get_tcp_counters()");
+	synchronize_threads(); /* 1: init skpair & read nscounters */
+
+	ret = _test_server_run(sk, quota, &c, cond, err, TEST_TIMEOUT_SEC);
+	test_tcp_counters_free(&c);
+	return ret;
+}
+
+static ssize_t test_client_loop(int sk, size_t buf_sz, const size_t msg_len,
+				struct tcp_counters *c, test_cnt cond,
+				volatile int *err)
+{
+	char msg[msg_len];
+	int nodelay = 1;
+	char *buf;
+	size_t i;
+
+	buf = alloca(buf_sz);
+	if (!buf)
+		return -ENOMEM;
+	randomize_buffer(buf, buf_sz);
+
+	if (setsockopt(sk, IPPROTO_TCP, TCP_NODELAY, &nodelay, sizeof(nodelay)))
+		test_error("setsockopt(TCP_NODELAY)");
+
+	for (i = 0; i < buf_sz; i += min(msg_len, buf_sz - i)) {
+		size_t sent, bytes = min(msg_len, buf_sz - i);
+		int ret;
+
+		ret = __test_skpair_poll(sk, 1, TEST_TIMEOUT_SEC, c, cond, err);
+		if (ret)
+			return ret;
+
+		sent = send(sk, buf + i, bytes, 0);
+		if (sent == 0)
+			break;
+		if (sent != bytes)
+			test_error("send()");
+
+		bytes = 0;
+		do {
+			ssize_t got;
+
+			ret = __test_skpair_poll(sk, 0, TEST_TIMEOUT_SEC,
+						 c, cond, err);
+			if (ret)
+				return ret;
+
+			got = recv(sk, msg + bytes, sizeof(msg) - bytes, 0);
+			if (got <= 0)
+				return i;
+			bytes += got;
+		} while (bytes < sent);
+		if (bytes > sent)
+			test_error("recv(): %zd > %zd", bytes, sent);
+		if (memcmp(buf + i, msg, bytes) != 0) {
+			test_fail("received message differs");
+			return -1;
+		}
+	}
+	return i;
+}
+
+int test_client_verify(int sk, const size_t msg_len, const size_t nr)
+{
+	size_t buf_sz = msg_len * nr;
+	ssize_t ret;
+
+	ret = test_client_loop(sk, buf_sz, msg_len, NULL, 0, NULL);
+	if (ret < 0)
+		return (int)ret;
+	return ret != buf_sz ? -1 : 0;
+}
+
+int test_skpair_client(int sk, const size_t msg_len, const size_t nr,
+		       test_cnt cond, volatile int *err)
+{
+	struct tcp_counters c;
+	size_t buf_sz = msg_len * nr;
+	ssize_t ret;
+
+	*err = 0;
+	if (test_get_tcp_counters(sk, &c))
+		test_error("test_get_tcp_counters()");
+	synchronize_threads(); /* 1: init skpair & read nscounters */
+
+	ret = test_client_loop(sk, buf_sz, msg_len, &c, cond, err);
+	test_tcp_counters_free(&c);
+	if (ret < 0)
+		return (int)ret;
+	return ret != buf_sz ? -1 : 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/lib/utils.c b/tools/testing/selftests/net/tcp_ao/lib/utils.c
new file mode 100644
index 000000000000..bdf5522c9213
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/lib/utils.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "aolib.h"
+#include <string.h>
+
+void randomize_buffer(void *buf, size_t buflen)
+{
+	int *p = (int *)buf;
+	size_t words = buflen / sizeof(int);
+	size_t leftover = buflen % sizeof(int);
+
+	if (!buflen)
+		return;
+
+	while (words--)
+		*p++ = rand();
+
+	if (leftover) {
+		int tmp = rand();
+
+		memcpy(buf + buflen - leftover, &tmp, leftover);
+	}
+}
+
+__printf(3, 4) int test_echo(const char *fname, bool append,
+			     const char *fmt, ...)
+{
+	size_t len, written;
+	va_list vargs;
+	char *msg;
+	FILE *f;
+
+	f = fopen(fname, append ? "a" : "w");
+	if (!f)
+		return -errno;
+
+	va_start(vargs, fmt);
+	msg = test_snprintf(fmt, vargs);
+	va_end(vargs);
+	if (!msg) {
+		fclose(f);
+		return -1;
+	}
+	len = strlen(msg);
+	written = fwrite(msg, 1, len, f);
+	fclose(f);
+	free(msg);
+	return written == len ? 0 : -1;
+}
+
+const struct sockaddr_in6 addr_any6 = {
+	.sin6_family	= AF_INET6,
+};
+
+const struct sockaddr_in addr_any4 = {
+	.sin_family	= AF_INET,
+};
diff --git a/tools/testing/selftests/net/tcp_ao/restore.c b/tools/testing/selftests/net/tcp_ao/restore.c
new file mode 100644
index 000000000000..9a059b6c4523
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/restore.c
@@ -0,0 +1,251 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+/* This is over-simplified TCP_REPAIR for TCP_ESTABLISHED sockets
+ * It tests that TCP-AO enabled connection can be restored.
+ * For the proper socket repair see:
+ * https://github.com/checkpoint-restore/criu/blob/criu-dev/soccr/soccr.h
+ */
+#include <inttypes.h>
+#include "aolib.h"
+
+const size_t nr_packets = 20;
+const size_t msg_len = 100;
+const size_t quota = nr_packets * msg_len;
+#define fault(type)	(inj == FAULT_ ## type)
+
+static void try_server_run(const char *tst_name, unsigned int port,
+			   fault_t inj, test_cnt cnt_expected)
+{
+	test_cnt poll_cnt = (cnt_expected == TEST_CNT_GOOD) ? 0 : cnt_expected;
+	const char *cnt_name = "TCPAOGood";
+	struct tcp_counters cnt1, cnt2;
+	uint64_t before_cnt, after_cnt;
+	int sk, lsk, dummy;
+	ssize_t bytes;
+
+	if (fault(TIMEOUT))
+		cnt_name = "TCPAOBad";
+	lsk = test_listen_socket(this_ip_addr, port, 1);
+
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	synchronize_threads(); /* 1: MKT added => connect() */
+
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	close(lsk);
+
+	bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+	if (bytes != quota) {
+		test_fail("%s: server served: %zd", tst_name, bytes);
+		goto out;
+	}
+
+	before_cnt = netstat_get_one(cnt_name, NULL);
+	if (test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	bytes = test_skpair_server(sk, quota, poll_cnt, &dummy);
+	if (fault(TIMEOUT)) {
+		if (bytes > 0)
+			test_fail("%s: server served: %zd", tst_name, bytes);
+		else
+			test_ok("%s: server couldn't serve", tst_name);
+	} else {
+		if (bytes != quota)
+			test_fail("%s: server served: %zd", tst_name, bytes);
+		else
+			test_ok("%s: server alive", tst_name);
+	}
+	synchronize_threads(); /* 3: counters checks */
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	after_cnt = netstat_get_one(cnt_name, NULL);
+
+	test_assert_counters(tst_name, &cnt1, &cnt2, cnt_expected);
+
+	if (after_cnt <= before_cnt) {
+		test_fail("%s(server): %s counter did not increase: %" PRIu64 " <= %" PRIu64,
+			  tst_name, cnt_name, after_cnt, before_cnt);
+	} else {
+		test_ok("%s(server): counter %s increased %" PRIu64 " => %" PRIu64,
+			tst_name, cnt_name, before_cnt, after_cnt);
+	}
+
+	/*
+	 * Before close() as that will send FIN and move the peer in TCP_CLOSE
+	 * and that will prevent reading AO counters from the peer's socket.
+	 */
+	synchronize_threads(); /* 4: verified => closed */
+out:
+	close(sk);
+}
+
+static void *server_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+
+	try_server_run("TCP-AO migrate to another socket (server)", port++,
+		       0, TEST_CNT_GOOD);
+	try_server_run("TCP-AO with wrong send ISN (server)", port++,
+		       FAULT_TIMEOUT, TEST_CNT_BAD);
+	try_server_run("TCP-AO with wrong receive ISN (server)", port++,
+		       FAULT_TIMEOUT, TEST_CNT_BAD);
+	try_server_run("TCP-AO with wrong send SEQ ext number (server)", port++,
+		       FAULT_TIMEOUT, TEST_CNT_BAD);
+	try_server_run("TCP-AO with wrong receive SEQ ext number (server)",
+		       port++, FAULT_TIMEOUT, TEST_CNT_NS_BAD | TEST_CNT_GOOD);
+
+	synchronize_threads(); /* don't race to exit: client exits */
+	return NULL;
+}
+
+static void test_get_sk_checkpoint(unsigned int server_port, sockaddr_af *saddr,
+				   struct tcp_sock_state *img,
+				   struct tcp_ao_repair *ao_img)
+{
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* 1: MKT added => connect() */
+	if (test_connect_socket(sk, this_ip_dest, server_port) <= 0)
+		test_error("failed to connect()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	if (test_client_verify(sk, msg_len, nr_packets))
+		test_fail("pre-migrate verify failed");
+
+	test_enable_repair(sk);
+	test_sock_checkpoint(sk, img, saddr);
+	test_ao_checkpoint(sk, ao_img);
+	test_kill_sk(sk);
+}
+
+static void test_sk_restore(const char *tst_name, unsigned int server_port,
+			    sockaddr_af *saddr, struct tcp_sock_state *img,
+			    struct tcp_ao_repair *ao_img,
+			    fault_t inj, test_cnt cnt_expected)
+{
+	test_cnt poll_cnt = (cnt_expected == TEST_CNT_GOOD) ? 0 : cnt_expected;
+	const char *cnt_name = "TCPAOGood";
+	struct tcp_counters cnt1, cnt2;
+	uint64_t before_cnt, after_cnt;
+	int sk, dummy;
+
+	if (fault(TIMEOUT))
+		cnt_name = "TCPAOBad";
+
+	before_cnt = netstat_get_one(cnt_name, NULL);
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	test_enable_repair(sk);
+	test_sock_restore(sk, img, saddr, this_ip_dest, server_port);
+	if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	test_ao_restore(sk, ao_img);
+
+	if (test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	test_disable_repair(sk);
+	test_sock_state_free(img);
+
+	if (test_skpair_client(sk, msg_len, nr_packets, poll_cnt, &dummy)) {
+		if (fault(TIMEOUT))
+			test_ok("%s: post-migrate connection is broken", tst_name);
+		else
+			test_fail("%s: post-migrate connection is working", tst_name);
+	} else {
+		if (fault(TIMEOUT))
+			test_fail("%s: post-migrate connection is working", tst_name);
+		else
+			test_ok("%s: post-migrate connection is alive", tst_name);
+	}
+
+	synchronize_threads(); /* 3: counters checks */
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	after_cnt = netstat_get_one(cnt_name, NULL);
+
+	test_assert_counters(tst_name, &cnt1, &cnt2, cnt_expected);
+
+	if (after_cnt <= before_cnt) {
+		test_fail("%s: %s counter did not increase: %" PRIu64 " <= %" PRIu64,
+				tst_name, cnt_name, after_cnt, before_cnt);
+	} else {
+		test_ok("%s: counter %s increased %" PRIu64 " => %" PRIu64,
+			tst_name, cnt_name, before_cnt, after_cnt);
+	}
+	synchronize_threads(); /* 4: verified => closed */
+	close(sk);
+}
+
+static void *client_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+	struct tcp_sock_state tcp_img;
+	struct tcp_ao_repair ao_img;
+	sockaddr_af saddr;
+
+	test_get_sk_checkpoint(port, &saddr, &tcp_img, &ao_img);
+	test_sk_restore("TCP-AO migrate to another socket (client)", port++,
+			&saddr, &tcp_img, &ao_img, 0, TEST_CNT_GOOD);
+
+	test_get_sk_checkpoint(port, &saddr, &tcp_img, &ao_img);
+	ao_img.snt_isn += 1;
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_addr, this_ip_dest,
+			      -1, port, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_dest, this_ip_addr,
+			      port, -1, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	test_sk_restore("TCP-AO with wrong send ISN (client)", port++,
+			&saddr, &tcp_img, &ao_img, FAULT_TIMEOUT, TEST_CNT_BAD);
+
+	test_get_sk_checkpoint(port, &saddr, &tcp_img, &ao_img);
+	ao_img.rcv_isn += 1;
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_addr, this_ip_dest,
+			      -1, port, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_dest, this_ip_addr,
+			      port, -1, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	test_sk_restore("TCP-AO with wrong receive ISN (client)", port++,
+			&saddr, &tcp_img, &ao_img, FAULT_TIMEOUT, TEST_CNT_BAD);
+
+	test_get_sk_checkpoint(port, &saddr, &tcp_img, &ao_img);
+	ao_img.snd_sne += 1;
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_addr, this_ip_dest,
+			      -1, port, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	/* not expecting server => client mismatches as only snd sne is broken */
+	test_sk_restore("TCP-AO with wrong send SEQ ext number (client)",
+			port++, &saddr, &tcp_img, &ao_img, FAULT_TIMEOUT,
+			TEST_CNT_NS_BAD | TEST_CNT_GOOD);
+
+	test_get_sk_checkpoint(port, &saddr, &tcp_img, &ao_img);
+	ao_img.rcv_sne += 1;
+	/* not expecting client => server mismatches as only rcv sne is broken */
+	trace_ao_event_expect(TCP_AO_MISMATCH, this_ip_dest, this_ip_addr,
+			      port, -1, 0, -1, -1, -1, -1, -1, 100, 100, -1);
+	test_sk_restore("TCP-AO with wrong receive SEQ ext number (client)",
+			port++, &saddr, &tcp_img, &ao_img, FAULT_TIMEOUT,
+			TEST_CNT_NS_GOOD | TEST_CNT_BAD);
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(21, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/rst.c b/tools/testing/selftests/net/tcp_ao/rst.c
new file mode 100644
index 000000000000..883cddf377cf
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/rst.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * The test checks that both active and passive reset have correct TCP-AO
+ * signature. An "active" reset (abort) here is procured from closing
+ * listen() socket with non-accepted connections in the queue:
+ * inet_csk_listen_stop() => inet_child_forget() =>
+ *                        => tcp_disconnect() => tcp_send_active_reset()
+ *
+ * The passive reset is quite hard to get on established TCP connections.
+ * It could be procured from non-established states, but the synchronization
+ * part from userspace in order to reliably get RST seems uneasy.
+ * So, instead it's procured by corrupting SEQ number on TIMED-WAIT state.
+ *
+ * It's important to test both passive and active RST as they go through
+ * different code-paths:
+ * - tcp_send_active_reset() makes no-data skb, sends it with tcp_transmit_skb()
+ * - tcp_v*_send_reset() create their reply skbs and send them with
+ *   ip_send_unicast_reply()
+ *
+ * In both cases TCP-AO signatures have to be correct, which is verified by
+ * (1) checking that the TCP-AO connection was reset and (2) TCP-AO counters.
+ *
+ * Author: Dmitry Safonov <dima@arista.com>
+ */
+#include <inttypes.h>
+#include "../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+const size_t quota = 1000;
+const size_t packet_sz = 100;
+/*
+ * Backlog == 0 means 1 connection in queue, see:
+ * commit 64a146513f8f ("[NET]: Revert incorrect accept queue...")
+ */
+const unsigned int backlog;
+
+static void netstats_check(struct netstat *before, struct netstat *after,
+			   char *msg)
+{
+	uint64_t before_cnt, after_cnt;
+
+	before_cnt = netstat_get(before, "TCPAORequired", NULL);
+	after_cnt = netstat_get(after, "TCPAORequired", NULL);
+	if (after_cnt > before_cnt)
+		test_fail("Segments without AO sign (%s): %" PRIu64 " => %" PRIu64,
+			  msg, before_cnt, after_cnt);
+	else
+		test_ok("No segments without AO sign (%s)", msg);
+
+	before_cnt = netstat_get(before, "TCPAOGood", NULL);
+	after_cnt = netstat_get(after, "TCPAOGood", NULL);
+	if (after_cnt <= before_cnt)
+		test_fail("Signed AO segments (%s): %" PRIu64 " => %" PRIu64,
+			  msg, before_cnt, after_cnt);
+	else
+		test_ok("Signed AO segments (%s): %" PRIu64 " => %" PRIu64,
+			  msg, before_cnt, after_cnt);
+
+	before_cnt = netstat_get(before, "TCPAOBad", NULL);
+	after_cnt = netstat_get(after, "TCPAOBad", NULL);
+	if (after_cnt > before_cnt)
+		test_fail("Segments with bad AO sign (%s): %" PRIu64 " => %" PRIu64,
+			  msg, before_cnt, after_cnt);
+	else
+		test_ok("No segments with bad AO sign (%s)", msg);
+}
+
+/*
+ * Another way to send RST, but not through tcp_v{4,6}_send_reset()
+ * is tcp_send_active_reset(), that is not in reply to inbound segment,
+ * but rather active send. It uses tcp_transmit_skb(), so that should
+ * work, but as it also sends RST - nice that it can be covered as well.
+ */
+static void close_forced(int sk)
+{
+	struct linger sl;
+
+	sl.l_onoff = 1;
+	sl.l_linger = 0;
+	if (setsockopt(sk, SOL_SOCKET, SO_LINGER, &sl, sizeof(sl)))
+		test_error("setsockopt(SO_LINGER)");
+	close(sk);
+}
+
+static void test_server_active_rst(unsigned int port)
+{
+	struct tcp_counters cnt1, cnt2;
+	ssize_t bytes;
+	int sk, lsk;
+
+	lsk = test_listen_socket(this_ip_addr, port, backlog);
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	if (test_get_tcp_counters(lsk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* 1: MKT added */
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	synchronize_threads(); /* 2: connection accept()ed, another queued */
+	if (test_get_tcp_counters(lsk, &cnt2))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* 3: close listen socket */
+	close(lsk);
+	bytes = test_server_run(sk, quota, 0);
+	if (bytes != quota)
+		test_error("servered only %zd bytes", bytes);
+	else
+		test_ok("servered %zd bytes", bytes);
+
+	synchronize_threads(); /* 4: finishing up */
+	close_forced(sk);
+
+	synchronize_threads(); /* 5: closed active sk */
+
+	synchronize_threads(); /* 6: counters checks */
+	if (test_assert_counters("active RST server", &cnt1, &cnt2, TEST_CNT_GOOD))
+		test_fail("MKT counters (server) have not only good packets");
+	else
+		test_ok("MKT counters are good on server");
+}
+
+static void test_server_passive_rst(unsigned int port)
+{
+	struct tcp_counters cnt1, cnt2;
+	int sk, lsk;
+	ssize_t bytes;
+
+	lsk = test_listen_socket(this_ip_addr, port, 1);
+
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* 1: MKT added => connect() */
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	close(lsk);
+	if (test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+	if (bytes != quota) {
+		if (bytes > 0)
+			test_fail("server served: %zd", bytes);
+		else
+			test_fail("server returned %zd", bytes);
+	}
+
+	synchronize_threads(); /* 3: checkpoint the client */
+	synchronize_threads(); /* 4: close the server, creating twsk */
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	close(sk);
+
+	synchronize_threads(); /* 5: restore the socket, send more data */
+	test_assert_counters("passive RST server", &cnt1, &cnt2, TEST_CNT_GOOD);
+
+	synchronize_threads(); /* 6: server exits */
+}
+
+static void *server_fn(void *arg)
+{
+	struct netstat *ns_before, *ns_after;
+	unsigned int port = test_server_port;
+
+	ns_before = netstat_read();
+
+	test_server_active_rst(port++);
+	test_server_passive_rst(port++);
+
+	ns_after = netstat_read();
+	netstats_check(ns_before, ns_after, "server");
+	netstat_free(ns_after);
+	netstat_free(ns_before);
+	synchronize_threads(); /* exit */
+
+	synchronize_threads(); /* don't race to exit() - client exits */
+	return NULL;
+}
+
+static int test_wait_fds(int sk[], size_t nr, bool is_writable[],
+			 ssize_t wait_for, time_t sec)
+{
+	struct timeval tv = { .tv_sec = sec };
+	struct timeval *ptv = NULL;
+	fd_set left;
+	size_t i;
+	int ret;
+
+	FD_ZERO(&left);
+	for (i = 0; i < nr; i++) {
+		FD_SET(sk[i], &left);
+		if (is_writable)
+			is_writable[i] = false;
+	}
+
+	if (sec)
+		ptv = &tv;
+
+	do {
+		bool is_empty = true;
+		fd_set fds, efds;
+		int nfd = 0;
+
+		FD_ZERO(&fds);
+		FD_ZERO(&efds);
+		for (i = 0; i < nr; i++) {
+			if (!FD_ISSET(sk[i], &left))
+				continue;
+
+			if (sk[i] > nfd)
+				nfd = sk[i];
+
+			FD_SET(sk[i], &fds);
+			FD_SET(sk[i], &efds);
+			is_empty = false;
+		}
+		if (is_empty)
+			return -ENOENT;
+
+		errno = 0;
+		ret = select(nfd + 1, NULL, &fds, &efds, ptv);
+		if (ret < 0)
+			return -errno;
+		if (!ret)
+			return -ETIMEDOUT;
+		for (i = 0; i < nr; i++) {
+			if (FD_ISSET(sk[i], &fds)) {
+				if (is_writable)
+					is_writable[i] = true;
+				FD_CLR(sk[i], &left);
+				wait_for--;
+				continue;
+			}
+			if (FD_ISSET(sk[i], &efds)) {
+				FD_CLR(sk[i], &left);
+				wait_for--;
+			}
+		}
+	} while (wait_for > 0);
+
+	return 0;
+}
+
+static void test_client_active_rst(unsigned int port)
+{
+	int i, sk[3], err;
+	bool is_writable[ARRAY_SIZE(sk)] = {false};
+	unsigned int last = ARRAY_SIZE(sk) - 1;
+
+	for (i = 0; i < ARRAY_SIZE(sk); i++) {
+		sk[i] = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+		if (sk[i] < 0)
+			test_error("socket()");
+		if (test_add_key(sk[i], DEFAULT_TEST_PASSWORD,
+				 this_ip_dest, -1, 100, 100))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+	}
+
+	synchronize_threads(); /* 1: MKT added */
+	for (i = 0; i < last; i++) {
+		err = _test_connect_socket(sk[i], this_ip_dest, port, i != 0);
+		if (err < 0)
+			test_error("failed to connect()");
+	}
+
+	synchronize_threads(); /* 2: two connections: one accept()ed, another queued */
+	err = test_wait_fds(sk, last, is_writable, last, TEST_TIMEOUT_SEC);
+	if (err < 0)
+		test_error("test_wait_fds(): %d", err);
+
+	/* async connect() with third sk to get into request_sock_queue */
+	err = _test_connect_socket(sk[last], this_ip_dest, port, 1);
+	if (err < 0)
+		test_error("failed to connect()");
+
+	synchronize_threads(); /* 3: close listen socket */
+	if (test_client_verify(sk[0], packet_sz, quota / packet_sz))
+		test_fail("Failed to send data on connected socket");
+	else
+		test_ok("Verified established tcp connection");
+
+	synchronize_threads(); /* 4: finishing up */
+
+	synchronize_threads(); /* 5: closed active sk */
+	/*
+	 * Wait for 2 connections: one accepted, another in the accept queue,
+	 * the one in request_sock_queue won't get fully established, so
+	 * doesn't receive an active RST, see inet_csk_listen_stop().
+	 */
+	err = test_wait_fds(sk, last, NULL, last, TEST_TIMEOUT_SEC);
+	if (err < 0)
+		test_error("select(): %d", err);
+
+	for (i = 0; i < ARRAY_SIZE(sk); i++) {
+		socklen_t slen = sizeof(err);
+
+		if (getsockopt(sk[i], SOL_SOCKET, SO_ERROR, &err, &slen))
+			test_error("getsockopt()");
+		if (is_writable[i] && err != ECONNRESET) {
+			test_fail("sk[%d] = %d, err = %d, connection wasn't reset",
+				  i, sk[i], err);
+		} else {
+			test_ok("sk[%d] = %d%s", i, sk[i],
+				is_writable[i] ? ", connection was reset" : "");
+		}
+	}
+	synchronize_threads(); /* 6: counters checks */
+}
+
+static void test_client_passive_rst(unsigned int port)
+{
+	struct tcp_counters cnt1, cnt2;
+	struct tcp_ao_repair ao_img;
+	struct tcp_sock_state img;
+	sockaddr_af saddr;
+	int sk, err;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* 1: MKT added => connect() */
+	if (test_connect_socket(sk, this_ip_dest, port) <= 0)
+		test_error("failed to connect()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	if (test_client_verify(sk, packet_sz, quota / packet_sz))
+		test_fail("Failed to send data on connected socket");
+	else
+		test_ok("Verified established tcp connection");
+
+	synchronize_threads(); /* 3: checkpoint the client */
+	test_enable_repair(sk);
+	test_sock_checkpoint(sk, &img, &saddr);
+	test_ao_checkpoint(sk, &ao_img);
+	test_disable_repair(sk);
+
+	synchronize_threads(); /* 4: close the server, creating twsk */
+
+	/*
+	 * The "corruption" in SEQ has to be small enough to fit into TCP
+	 * window, see tcp_timewait_state_process() for out-of-window
+	 * segments.
+	 */
+	img.out.seq += 5; /* 5 is more noticeable in tcpdump than 1 */
+
+	/*
+	 * FIXME: This is kind-of ugly and dirty, but it works.
+	 *
+	 * At this moment, the server has close'ed(sk).
+	 * The passive RST that is being targeted here is new data after
+	 * half-duplex close, see tcp_timewait_state_process() => TCP_TW_RST
+	 *
+	 * What is needed here is:
+	 * (1) wait for FIN from the server
+	 * (2) make sure that the ACK from the client went out
+	 * (3) make sure that the ACK was received and processed by the server
+	 *
+	 * Otherwise, the data that will be sent from "repaired" socket
+	 * post SEQ corruption may get to the server before it's in
+	 * TCP_FIN_WAIT2.
+	 *
+	 * (1) is easy with select()/poll()
+	 * (2) is possible by polling tcpi_state from TCP_INFO
+	 * (3) is quite complex: as server's socket was already closed,
+	 *     probably the way to do it would be tcp-diag.
+	 */
+	sleep(TEST_RETRANSMIT_SEC);
+
+	synchronize_threads(); /* 5: restore the socket, send more data */
+	test_kill_sk(sk);
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	test_enable_repair(sk);
+	test_sock_restore(sk, &img, &saddr, this_ip_dest, port);
+	if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	test_ao_restore(sk, &ao_img);
+
+	if (test_get_tcp_counters(sk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	test_disable_repair(sk);
+	test_sock_state_free(&img);
+
+	/*
+	 * This is how "passive reset" is acquired in this test from TCP_TW_RST:
+	 *
+	 * IP 10.0.254.1.7011 > 10.0.1.1.59772: Flags [P.], seq 901:1001, ack 1001, win 249,
+	 *    options [tcp-ao keyid 100 rnextkeyid 100 mac 0x10217d6c36a22379086ef3b1], length 100
+	 * IP 10.0.254.1.7011 > 10.0.1.1.59772: Flags [F.], seq 1001, ack 1001, win 249,
+	 *    options [tcp-ao keyid 100 rnextkeyid 100 mac 0x104ffc99b98c10a5298cc268], length 0
+	 * IP 10.0.1.1.59772 > 10.0.254.1.7011: Flags [.], ack 1002, win 251,
+	 *    options [tcp-ao keyid 100 rnextkeyid 100 mac 0xe496dd4f7f5a8a66873c6f93,nop,nop,sack 1 {1001:1002}], length 0
+	 * IP 10.0.1.1.59772 > 10.0.254.1.7011: Flags [P.], seq 1006:1106, ack 1001, win 251,
+	 *    options [tcp-ao keyid 100 rnextkeyid 100 mac 0x1b5f3330fb23fbcd0c77d0ca], length 100
+	 * IP 10.0.254.1.7011 > 10.0.1.1.59772: Flags [R], seq 3215596252, win 0,
+	 *    options [tcp-ao keyid 100 rnextkeyid 100 mac 0x0bcfbbf497bce844312304b2], length 0
+	 */
+	err = test_client_verify(sk, packet_sz, quota / packet_sz);
+	/* Make sure that the connection was reset, not timeouted */
+	if (err && err == -ECONNRESET)
+		test_ok("client sock was passively reset post-seq-adjust");
+	else if (err)
+		test_fail("client sock was not reset post-seq-adjust: %d", err);
+	else
+		test_fail("client sock is yet connected post-seq-adjust");
+
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* 6: server exits */
+	close(sk);
+	test_assert_counters("client passive RST", &cnt1, &cnt2, TEST_CNT_GOOD);
+}
+
+static void *client_fn(void *arg)
+{
+	struct netstat *ns_before, *ns_after;
+	unsigned int port = test_server_port;
+
+	ns_before = netstat_read();
+
+	test_client_active_rst(port++);
+	test_client_passive_rst(port++);
+
+	ns_after = netstat_read();
+	netstats_check(ns_before, ns_after, "client");
+	netstat_free(ns_after);
+	netstat_free(ns_before);
+
+	synchronize_threads(); /* exit */
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(15, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/self-connect.c b/tools/testing/selftests/net/tcp_ao/self-connect.c
new file mode 100644
index 000000000000..2c73bea698a6
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/self-connect.c
@@ -0,0 +1,191 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "aolib.h"
+
+static union tcp_addr local_addr;
+
+static void __setup_lo_intf(const char *lo_intf,
+			    const char *addr_str, uint8_t prefix)
+{
+	if (inet_pton(TEST_FAMILY, addr_str, &local_addr) != 1)
+		test_error("Can't convert local ip address");
+
+	if (ip_addr_add(lo_intf, TEST_FAMILY, local_addr, prefix))
+		test_error("Failed to add %s ip address", lo_intf);
+
+	if (link_set_up(lo_intf))
+		test_error("Failed to bring %s up", lo_intf);
+
+	if (ip_route_add(lo_intf, TEST_FAMILY, local_addr, local_addr))
+		test_error("Failed to add a local route %s", lo_intf);
+}
+
+static void setup_lo_intf(const char *lo_intf)
+{
+#ifdef IPV6_TEST
+	__setup_lo_intf(lo_intf, "::1", 128);
+#else
+	__setup_lo_intf(lo_intf, "127.0.0.1", 8);
+#endif
+}
+
+static void tcp_self_connect(const char *tst, unsigned int port,
+			     bool different_keyids, bool check_restore)
+{
+	struct tcp_counters before, after;
+	uint64_t before_aogood, after_aogood;
+	struct netstat *ns_before, *ns_after;
+	const size_t nr_packets = 20;
+	struct tcp_ao_repair ao_img;
+	struct tcp_sock_state img;
+	sockaddr_af addr;
+	int sk;
+
+	tcp_addr_to_sockaddr_in(&addr, &local_addr, htons(port));
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (different_keyids) {
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 5, 7))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 7, 5))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+	} else {
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, local_addr, -1, 100, 100))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+	}
+
+	if (bind(sk, (struct sockaddr *)&addr, sizeof(addr)) < 0)
+		test_error("bind()");
+
+	ns_before = netstat_read();
+	before_aogood = netstat_get(ns_before, "TCPAOGood", NULL);
+	if (test_get_tcp_counters(sk, &before))
+		test_error("test_get_tcp_counters()");
+
+	if (__test_connect_socket(sk, "lo", (struct sockaddr *)&addr,
+				  sizeof(addr), 0) < 0) {
+		ns_after = netstat_read();
+		netstat_print_diff(ns_before, ns_after);
+		test_error("failed to connect()");
+	}
+
+	if (test_client_verify(sk, 100, nr_packets)) {
+		test_fail("%s: tcp connection verify failed", tst);
+		close(sk);
+		return;
+	}
+
+	ns_after = netstat_read();
+	after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
+	if (test_get_tcp_counters(sk, &after))
+		test_error("test_get_tcp_counters()");
+	if (!check_restore) {
+		/* to debug: netstat_print_diff(ns_before, ns_after); */
+		netstat_free(ns_before);
+	}
+	netstat_free(ns_after);
+
+	if (after_aogood <= before_aogood) {
+		test_fail("%s: TCPAOGood counter mismatch: %" PRIu64 " <= %" PRIu64,
+			  tst, after_aogood, before_aogood);
+		close(sk);
+		return;
+	}
+
+	if (test_assert_counters(tst, &before, &after, TEST_CNT_GOOD)) {
+		close(sk);
+		return;
+	}
+
+	if (!check_restore) {
+		test_ok("%s: connect TCPAOGood %" PRIu64 " => %" PRIu64,
+				tst, before_aogood, after_aogood);
+		close(sk);
+		return;
+	}
+
+	test_enable_repair(sk);
+	test_sock_checkpoint(sk, &img, &addr);
+#ifdef IPV6_TEST
+	addr.sin6_port = htons(port + 1);
+#else
+	addr.sin_port = htons(port + 1);
+#endif
+	test_ao_checkpoint(sk, &ao_img);
+	test_kill_sk(sk);
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	test_enable_repair(sk);
+	__test_sock_restore(sk, "lo", &img, &addr, &addr, sizeof(addr));
+	if (different_keyids) {
+		if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
+					  local_addr, -1, 7, 5))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+		if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
+					  local_addr, -1, 5, 7))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+	} else {
+		if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0,
+					  local_addr, -1, 100, 100))
+			test_error("setsockopt(TCP_AO_ADD_KEY)");
+	}
+	test_ao_restore(sk, &ao_img);
+	test_disable_repair(sk);
+	test_sock_state_free(&img);
+	if (test_client_verify(sk, 100, nr_packets)) {
+		test_fail("%s: tcp connection verify failed", tst);
+		close(sk);
+		return;
+	}
+	ns_after = netstat_read();
+	after_aogood = netstat_get(ns_after, "TCPAOGood", NULL);
+	/* to debug: netstat_print_diff(ns_before, ns_after); */
+	netstat_free(ns_before);
+	netstat_free(ns_after);
+	close(sk);
+	if (after_aogood <= before_aogood) {
+		test_fail("%s: TCPAOGood counter mismatch: %" PRIu64 " <= %" PRIu64,
+			  tst, after_aogood, before_aogood);
+		return;
+	}
+	test_ok("%s: connect TCPAOGood %" PRIu64 " => %" PRIu64,
+			tst, before_aogood, after_aogood);
+}
+
+static void *client_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+
+	setup_lo_intf("lo");
+
+	tcp_self_connect("self-connect(same keyids)", port++, false, false);
+
+	/* expecting rnext to change based on the first segment RNext != Current */
+	trace_ao_event_expect(TCP_AO_RNEXT_REQUEST, local_addr, local_addr,
+			      port, port, 0, -1, -1, -1, -1, -1, 7, 5, -1);
+	tcp_self_connect("self-connect(different keyids)", port++, true, false);
+	tcp_self_connect("self-connect(restore)", port, false, true);
+	port += 2; /* restore test restores over different port */
+	trace_ao_event_expect(TCP_AO_RNEXT_REQUEST, local_addr, local_addr,
+			      port, port, 0, -1, -1, -1, -1, -1, 7, 5, -1);
+	/* intentionally on restore they are added to the socket in different order */
+	trace_ao_event_expect(TCP_AO_RNEXT_REQUEST, local_addr, local_addr,
+			      port + 1, port + 1, 0, -1, -1, -1, -1, -1, 5, 7, -1);
+	tcp_self_connect("self-connect(restore, different keyids)", port, true, true);
+	port += 2; /* restore test restores over different port */
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(5, client_fn, NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/seq-ext.c b/tools/testing/selftests/net/tcp_ao/seq-ext.c
new file mode 100644
index 000000000000..6478da6a71c3
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/seq-ext.c
@@ -0,0 +1,255 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Check that after SEQ number wrap-around:
+ * 1. SEQ-extension has upper bytes set
+ * 2. TCP connection is alive and no TCPAOBad segments
+ * In order to test (2), the test doesn't just adjust seq number for a queue
+ * on a connected socket, but migrates it to another sk+port number, so
+ * that there won't be any delayed packets that will fail to verify
+ * with the new SEQ numbers.
+ */
+#include <inttypes.h>
+#include "aolib.h"
+
+const unsigned int nr_packets = 1000;
+const unsigned int msg_len = 1000;
+const unsigned int quota = nr_packets * msg_len;
+unsigned int client_new_port;
+
+/* Move them closer to roll-over */
+static void test_adjust_seqs(struct tcp_sock_state *img,
+			     struct tcp_ao_repair *ao_img,
+			     bool server)
+{
+	uint32_t new_seq1, new_seq2;
+
+	/* make them roll-over during quota, but on different segments */
+	if (server) {
+		new_seq1 = ((uint32_t)-1) - msg_len;
+		new_seq2 = ((uint32_t)-1) - (quota - 2 * msg_len);
+	} else {
+		new_seq1 = ((uint32_t)-1) - (quota - 2 * msg_len);
+		new_seq2 = ((uint32_t)-1) - msg_len;
+	}
+
+	img->in.seq = new_seq1;
+	img->trw.snd_wl1 = img->in.seq - msg_len;
+	img->out.seq = new_seq2;
+	img->trw.rcv_wup = img->in.seq;
+}
+
+static int test_sk_restore(struct tcp_sock_state *img,
+			   struct tcp_ao_repair *ao_img, sockaddr_af *saddr,
+			   const union tcp_addr daddr, unsigned int dport,
+			   struct tcp_counters *cnt)
+{
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	test_enable_repair(sk);
+	test_sock_restore(sk, img, saddr, daddr, dport);
+	if (test_add_repaired_key(sk, DEFAULT_TEST_PASSWORD, 0, daddr, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+	test_ao_restore(sk, ao_img);
+
+	if (test_get_tcp_counters(sk, cnt))
+		test_error("test_get_tcp_counters()");
+
+	test_disable_repair(sk);
+	test_sock_state_free(img);
+	return sk;
+}
+
+static void *server_fn(void *arg)
+{
+	uint64_t before_good, after_good, after_bad;
+	struct tcp_counters cnt1, cnt2;
+	struct tcp_sock_state img;
+	struct tcp_ao_repair ao_img;
+	sockaddr_af saddr;
+	ssize_t bytes;
+	int sk, lsk;
+
+	lsk = test_listen_socket(this_ip_addr, test_server_port, 1);
+
+	if (test_add_key(lsk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* 1: MKT added => connect() */
+
+	if (test_wait_fd(lsk, TEST_TIMEOUT_SEC, 0))
+		test_error("test_wait_fd()");
+
+	sk = accept(lsk, NULL, NULL);
+	if (sk < 0)
+		test_error("accept()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	close(lsk);
+
+	bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+	if (bytes != quota) {
+		if (bytes > 0)
+			test_fail("server served: %zd", bytes);
+		else
+			test_fail("server returned: %zd", bytes);
+		goto out;
+	}
+
+	before_good = netstat_get_one("TCPAOGood", NULL);
+
+	synchronize_threads(); /* 3: restore the connection on another port */
+
+	test_enable_repair(sk);
+	test_sock_checkpoint(sk, &img, &saddr);
+	test_ao_checkpoint(sk, &ao_img);
+	test_kill_sk(sk);
+#ifdef IPV6_TEST
+	saddr.sin6_port = htons(ntohs(saddr.sin6_port) + 1);
+#else
+	saddr.sin_port = htons(ntohs(saddr.sin_port) + 1);
+#endif
+	test_adjust_seqs(&img, &ao_img, true);
+	synchronize_threads(); /* 4: dump finished */
+	sk = test_sk_restore(&img, &ao_img, &saddr, this_ip_dest,
+			     client_new_port, &cnt1);
+
+	trace_ao_event_sne_expect(TCP_AO_SND_SNE_UPDATE, this_ip_addr,
+			this_ip_dest, test_server_port + 1, client_new_port, 1);
+	trace_ao_event_sne_expect(TCP_AO_SND_SNE_UPDATE, this_ip_dest,
+			this_ip_addr, client_new_port, test_server_port + 1, 1);
+	trace_ao_event_sne_expect(TCP_AO_RCV_SNE_UPDATE, this_ip_addr,
+			this_ip_dest, test_server_port + 1, client_new_port, 1);
+	trace_ao_event_sne_expect(TCP_AO_RCV_SNE_UPDATE, this_ip_dest,
+			this_ip_addr, client_new_port, test_server_port + 1, 1);
+	synchronize_threads(); /* 5: verify the connection during SEQ-number rollover */
+	bytes = test_server_run(sk, quota, TEST_TIMEOUT_SEC);
+	if (bytes != quota) {
+		if (bytes > 0)
+			test_fail("server served: %zd", bytes);
+		else
+			test_fail("server returned: %zd", bytes);
+	} else {
+		test_ok("server alive");
+	}
+
+	synchronize_threads(); /* 6: verify counters after SEQ-number rollover */
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	after_good = netstat_get_one("TCPAOGood", NULL);
+
+	test_assert_counters(NULL, &cnt1, &cnt2, TEST_CNT_GOOD);
+
+	if (after_good <= before_good) {
+		test_fail("TCPAOGood counter did not increase: %" PRIu64 " <= %" PRIu64,
+			  after_good, before_good);
+	} else {
+		test_ok("TCPAOGood counter increased %" PRIu64 " => %" PRIu64,
+			before_good, after_good);
+	}
+	after_bad = netstat_get_one("TCPAOBad", NULL);
+	if (after_bad)
+		test_fail("TCPAOBad counter is non-zero: %" PRIu64, after_bad);
+	else
+		test_ok("TCPAOBad counter didn't increase");
+	test_enable_repair(sk);
+	test_ao_checkpoint(sk, &ao_img);
+	if (ao_img.snd_sne && ao_img.rcv_sne) {
+		test_ok("SEQ extension incremented: %u/%u",
+			ao_img.snd_sne, ao_img.rcv_sne);
+	} else {
+		test_fail("SEQ extension was not incremented: %u/%u",
+			  ao_img.snd_sne, ao_img.rcv_sne);
+	}
+
+	synchronize_threads(); /* 6: verified => closed */
+out:
+	close(sk);
+	return NULL;
+}
+
+static void *client_fn(void *arg)
+{
+	uint64_t before_good, after_good, after_bad;
+	struct tcp_counters cnt1, cnt2;
+	struct tcp_sock_state img;
+	struct tcp_ao_repair ao_img;
+	sockaddr_af saddr;
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, -1, 100, 100))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* 1: MKT added => connect() */
+	if (test_connect_socket(sk, this_ip_dest, test_server_port) <= 0)
+		test_error("failed to connect()");
+
+	synchronize_threads(); /* 2: accepted => send data */
+	if (test_client_verify(sk, msg_len, nr_packets)) {
+		test_fail("pre-migrate verify failed");
+		return NULL;
+	}
+
+	before_good = netstat_get_one("TCPAOGood", NULL);
+
+	synchronize_threads(); /* 3: restore the connection on another port */
+	test_enable_repair(sk);
+	test_sock_checkpoint(sk, &img, &saddr);
+	test_ao_checkpoint(sk, &ao_img);
+	test_kill_sk(sk);
+#ifdef IPV6_TEST
+	client_new_port = ntohs(saddr.sin6_port) + 1;
+	saddr.sin6_port = htons(ntohs(saddr.sin6_port) + 1);
+#else
+	client_new_port = ntohs(saddr.sin_port) + 1;
+	saddr.sin_port = htons(ntohs(saddr.sin_port) + 1);
+#endif
+	test_adjust_seqs(&img, &ao_img, false);
+	synchronize_threads(); /* 4: dump finished */
+	sk = test_sk_restore(&img, &ao_img, &saddr, this_ip_dest,
+			     test_server_port + 1, &cnt1);
+
+	synchronize_threads(); /* 5: verify the connection during SEQ-number rollover */
+	if (test_client_verify(sk, msg_len, nr_packets))
+		test_fail("post-migrate verify failed");
+	else
+		test_ok("post-migrate connection alive");
+
+	synchronize_threads(); /* 5: verify counters after SEQ-number rollover */
+	if (test_get_tcp_counters(sk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	after_good = netstat_get_one("TCPAOGood", NULL);
+
+	test_assert_counters(NULL, &cnt1, &cnt2, TEST_CNT_GOOD);
+
+	if (after_good <= before_good) {
+		test_fail("TCPAOGood counter did not increase: %" PRIu64 " <= %" PRIu64,
+			  after_good, before_good);
+	} else {
+		test_ok("TCPAOGood counter increased %" PRIu64 " => %" PRIu64,
+			before_good, after_good);
+	}
+	after_bad = netstat_get_one("TCPAOBad", NULL);
+	if (after_bad)
+		test_fail("TCPAOBad counter is non-zero: %" PRIu64, after_bad);
+	else
+		test_ok("TCPAOBad counter didn't increase");
+
+	synchronize_threads(); /* 6: verified => closed */
+	close(sk);
+
+	synchronize_threads(); /* don't race to exit: let server exit() */
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(8, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c b/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c
new file mode 100644
index 000000000000..0abb9807d742
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/setsockopt-closed.c
@@ -0,0 +1,1011 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "../../../../include/linux/kernel.h"
+#include "aolib.h"
+
+static union tcp_addr tcp_md5_client;
+
+#define FILTER_TEST_NKEYS 16
+
+static int test_port = 7788;
+static void make_listen(int sk)
+{
+	sockaddr_af addr;
+
+	tcp_addr_to_sockaddr_in(&addr, &this_ip_addr, htons(test_port++));
+	if (bind(sk, (struct sockaddr *)&addr, sizeof(addr)) < 0)
+		test_error("bind()");
+	if (listen(sk, 1))
+		test_error("listen()");
+}
+
+static void test_vefify_ao_info(int sk, struct tcp_ao_info_opt *info,
+				const char *tst)
+{
+	struct tcp_ao_info_opt tmp = {};
+	socklen_t len = sizeof(tmp);
+
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_INFO, &tmp, &len))
+		test_error("getsockopt(TCP_AO_INFO) failed");
+
+#define __cmp_ao(member)							\
+do {										\
+	if (info->member != tmp.member) {					\
+		test_fail("%s: getsockopt(): " __stringify(member) " %" PRIu64 " != %" PRIu64,	\
+			  tst, (uint64_t)info->member, (uint64_t)tmp.member);	\
+		return;								\
+	}									\
+} while(0)
+	if (info->set_current)
+		__cmp_ao(current_key);
+	if (info->set_rnext)
+		__cmp_ao(rnext);
+	if (info->set_counters) {
+		__cmp_ao(pkt_good);
+		__cmp_ao(pkt_bad);
+		__cmp_ao(pkt_key_not_found);
+		__cmp_ao(pkt_ao_required);
+		__cmp_ao(pkt_dropped_icmp);
+	}
+	__cmp_ao(ao_required);
+	__cmp_ao(accept_icmps);
+
+	test_ok("AO info get: %s", tst);
+#undef __cmp_ao
+}
+
+static void __setsockopt_checked(int sk, int optname, bool get,
+				 void *optval, socklen_t *len,
+				 int err, const char *tst, const char *tst2)
+{
+	int ret;
+
+	if (!tst)
+		tst = "";
+	if (!tst2)
+		tst2 = "";
+
+	errno = 0;
+	if (get)
+		ret = getsockopt(sk, IPPROTO_TCP, optname, optval, len);
+	else
+		ret = setsockopt(sk, IPPROTO_TCP, optname, optval, *len);
+	if (ret == -1) {
+		if (errno == err)
+			test_ok("%s%s", tst ?: "", tst2 ?: "");
+		else
+			test_fail("%s%s: %setsockopt() failed",
+				  tst, tst2, get ? "g" : "s");
+		close(sk);
+		return;
+	}
+
+	if (err) {
+		test_fail("%s%s: %setsockopt() was expected to fail with %d",
+			  tst, tst2, get ? "g" : "s", err);
+	} else {
+		test_ok("%s%s", tst ?: "", tst2 ?: "");
+		if (optname == TCP_AO_ADD_KEY) {
+			test_verify_socket_key(sk, optval);
+		} else if (optname == TCP_AO_INFO && !get) {
+			test_vefify_ao_info(sk, optval, tst2);
+		} else if (optname == TCP_AO_GET_KEYS) {
+			if (*len != sizeof(struct tcp_ao_getsockopt))
+				test_fail("%s%s: get keys returned wrong tcp_ao_getsockopt size",
+					  tst, tst2);
+		}
+	}
+	close(sk);
+}
+
+static void setsockopt_checked(int sk, int optname, void *optval,
+			       int err, const char *tst)
+{
+	const char *cmd = NULL;
+	socklen_t len;
+
+	switch (optname) {
+	case TCP_AO_ADD_KEY:
+		cmd = "key add: ";
+		len = sizeof(struct tcp_ao_add);
+		break;
+	case TCP_AO_DEL_KEY:
+		cmd = "key del: ";
+		len = sizeof(struct tcp_ao_del);
+		break;
+	case TCP_AO_INFO:
+		cmd = "AO info set: ";
+		len = sizeof(struct tcp_ao_info_opt);
+		break;
+	default:
+		break;
+	}
+
+	__setsockopt_checked(sk, optname, false, optval, &len, err, cmd, tst);
+}
+
+static int prepare_defs(int cmd, void *optval)
+{
+	int sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+
+	if (sk < 0)
+		test_error("socket()");
+
+	switch (cmd) {
+	case TCP_AO_ADD_KEY: {
+		struct tcp_ao_add *add = optval;
+
+		if (test_prepare_def_key(add, DEFAULT_TEST_PASSWORD, 0, this_ip_dest,
+					-1, 0, 100, 100))
+			test_error("prepare default tcp_ao_add");
+		break;
+		}
+	case TCP_AO_DEL_KEY: {
+		struct tcp_ao_del *del = optval;
+
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest,
+				 DEFAULT_TEST_PREFIX, 100, 100))
+			test_error("add default key");
+		memset(del, 0, sizeof(struct tcp_ao_del));
+		del->sndid = 100;
+		del->rcvid = 100;
+		del->prefix = DEFAULT_TEST_PREFIX;
+		tcp_addr_to_sockaddr_in(&del->addr, &this_ip_dest, 0);
+		break;
+		}
+	case TCP_AO_INFO: {
+		struct tcp_ao_info_opt *info = optval;
+
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest,
+				 DEFAULT_TEST_PREFIX, 100, 100))
+			test_error("add default key");
+		memset(info, 0, sizeof(struct tcp_ao_info_opt));
+		break;
+		}
+	case TCP_AO_GET_KEYS: {
+		struct tcp_ao_getsockopt *get = optval;
+
+		if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest,
+				 DEFAULT_TEST_PREFIX, 100, 100))
+			test_error("add default key");
+		memset(get, 0, sizeof(struct tcp_ao_getsockopt));
+		get->nkeys = 1;
+		get->get_all = 1;
+		break;
+		}
+	default:
+		test_error("unknown cmd");
+	}
+
+	return sk;
+}
+
+static void test_extend(int cmd, bool get, const char *tst, socklen_t under_size)
+{
+	struct {
+		union {
+			struct tcp_ao_add add;
+			struct tcp_ao_del del;
+			struct tcp_ao_getsockopt get;
+			struct tcp_ao_info_opt info;
+		};
+		char *extend[100];
+	} tmp_opt;
+	socklen_t extended_size = sizeof(tmp_opt);
+	int sk;
+
+	memset(&tmp_opt, 0, sizeof(tmp_opt));
+	sk = prepare_defs(cmd, &tmp_opt);
+	__setsockopt_checked(sk, cmd, get, &tmp_opt, &under_size,
+			     EINVAL, tst, ": minimum size");
+
+	memset(&tmp_opt, 0, sizeof(tmp_opt));
+	sk = prepare_defs(cmd, &tmp_opt);
+	__setsockopt_checked(sk, cmd, get, &tmp_opt, &extended_size,
+			     0, tst, ": extended size");
+
+	memset(&tmp_opt, 0, sizeof(tmp_opt));
+	sk = prepare_defs(cmd, &tmp_opt);
+	__setsockopt_checked(sk, cmd, get, NULL, &extended_size,
+			     EFAULT, tst, ": null optval");
+
+	if (get) {
+		memset(&tmp_opt, 0, sizeof(tmp_opt));
+		sk = prepare_defs(cmd, &tmp_opt);
+		__setsockopt_checked(sk, cmd, get, &tmp_opt, NULL,
+				     EFAULT, tst, ": null optlen");
+	}
+}
+
+static void extend_tests(void)
+{
+	test_extend(TCP_AO_ADD_KEY, false, "AO add",
+		    offsetof(struct tcp_ao_add, key));
+	test_extend(TCP_AO_DEL_KEY, false, "AO del",
+		    offsetof(struct tcp_ao_del, keyflags));
+	test_extend(TCP_AO_INFO, false, "AO set info",
+		    offsetof(struct tcp_ao_info_opt, pkt_dropped_icmp));
+	test_extend(TCP_AO_INFO, true, "AO get info", -1);
+	test_extend(TCP_AO_GET_KEYS, true, "AO get keys", -1);
+}
+
+static void test_optmem_limit(void)
+{
+	size_t i, keys_limit, current_optmem = test_get_optmem();
+	struct tcp_ao_add ao;
+	union tcp_addr net = {};
+	int sk;
+
+	if (inet_pton(TEST_FAMILY, TEST_NETWORK, &net) != 1)
+		test_error("Can't convert ip address %s", TEST_NETWORK);
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	keys_limit = current_optmem / KERNEL_TCP_AO_KEY_SZ_ROUND_UP;
+	for (i = 0;; i++) {
+		union tcp_addr key_peer;
+		int err;
+
+		key_peer = gen_tcp_addr(net, i + 1);
+		tcp_addr_to_sockaddr_in(&ao.addr, &key_peer, 0);
+		err = setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY,
+				 &ao, sizeof(ao));
+		if (!err) {
+			/*
+			 * TCP_AO_ADD_KEY should be the same order as the real
+			 * sizeof(struct tcp_ao_key) in kernel.
+			 */
+			if (i <= keys_limit * 10)
+				continue;
+			test_fail("optmem limit test failed: added %zu key", i);
+			break;
+		}
+		if (i < keys_limit) {
+			test_fail("optmem limit test failed: couldn't add %zu key", i);
+			break;
+		}
+		test_ok("optmem limit was hit on adding %zu key", i);
+		break;
+	}
+	close(sk);
+}
+
+static void test_einval_add_key(void)
+{
+	struct tcp_ao_add ao;
+	int sk;
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.keylen = TCP_AO_MAXKEYLEN + 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "too big keylen");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.reserved = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "using reserved padding");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.reserved2 = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "using reserved2 padding");
+
+	/* tcp_ao_verify_ipv{4,6}() checks */
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.addr.ss_family = AF_UNIX;
+	memcpy(&ao.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "wrong address family");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	tcp_addr_to_sockaddr_in(&ao.addr, &this_ip_dest, 1234);
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "port (unsupported)");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.prefix = 0;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "no prefix, addr");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.prefix = 0;
+	memcpy(&ao.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, 0, "no prefix, any addr");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.prefix = 32;
+	memcpy(&ao.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "prefix, any addr");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.prefix = 129;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "too big prefix");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.prefix = 2;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "too short prefix");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.keyflags = (uint8_t)(-1);
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "bad key flags");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	make_listen(sk);
+	ao.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "add current key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	make_listen(sk);
+	ao.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "add rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	make_listen(sk);
+	ao.set_current = 1;
+	ao.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "add current+rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, 0, "add key and set as current");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, 0, "add key and set as rnext");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.set_current = 1;
+	ao.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, 0, "add key and set as current+rnext");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.ifindex = 42;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL,
+			   "ifindex without TCP_AO_KEYF_IFNINDEX");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.keyflags |= TCP_AO_KEYF_IFINDEX;
+	ao.ifindex = 42;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EINVAL, "non-existent VRF");
+	/*
+	 * tcp_md5_do_lookup{,_any_l3index}() are checked in unsigned-md5
+	 * see client_vrf_tests().
+	 */
+
+	test_optmem_limit();
+
+	/* tcp_ao_parse_crypto() */
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao.maclen = 100;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EMSGSIZE, "maclen bigger than TCP hdr");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	strcpy(ao.alg_name, "imaginary hash algo");
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, ENOENT, "bad algo");
+}
+
+static void test_einval_del_key(void)
+{
+	struct tcp_ao_del del;
+	int sk;
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.reserved = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "using reserved padding");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.reserved2 = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "using reserved2 padding");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	make_listen(sk);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "del and set current key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	make_listen(sk);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "del and set rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	make_listen(sk);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_current = 1;
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "del and set current+rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.keyflags = (uint8_t)(-1);
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "bad key flags");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.ifindex = 42;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL,
+			   "ifindex without TCP_AO_KEYF_IFNINDEX");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.keyflags |= TCP_AO_KEYF_IFINDEX;
+	del.ifindex = 42;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "non-existent VRF");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set non-existing current key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set non-existing rnext key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_current = 1;
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set non-existing current+rnext key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, 0, "set current key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, 0, "set rnext key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	if (test_add_key(sk, DEFAULT_TEST_PASSWORD, this_ip_dest, DEFAULT_TEST_PREFIX, 0, 0))
+		test_error("add key");
+	del.set_current = 1;
+	del.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, 0, "set current+rnext key");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_current = 1;
+	del.current_key = 100;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set as current key to be removed");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_rnext = 1;
+	del.rnext = 100;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set as rnext key to be removed");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.set_current = 1;
+	del.current_key = 100;
+	del.set_rnext = 1;
+	del.rnext = 100;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "set as current+rnext key to be removed");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.del_async = 1;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, EINVAL, "async on non-listen");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.sndid = 101;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "non-existing sndid");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	del.rcvid = 101;
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "non-existing rcvid");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	tcp_addr_to_sockaddr_in(&del.addr, &this_ip_addr, 0);
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, ENOENT, "incorrect addr");
+
+	sk = prepare_defs(TCP_AO_DEL_KEY, &del);
+	setsockopt_checked(sk, TCP_AO_DEL_KEY, &del, 0, "correct key delete");
+}
+
+static void test_einval_ao_info(void)
+{
+	struct tcp_ao_info_opt info;
+	int sk;
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	make_listen(sk);
+	info.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, EINVAL, "set current key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	make_listen(sk);
+	info.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, EINVAL, "set rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	make_listen(sk);
+	info.set_current = 1;
+	info.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, EINVAL, "set current+rnext key on a listen socket");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.reserved = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, EINVAL, "using reserved padding");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.reserved2 = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, EINVAL, "using reserved2 padding");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.accept_icmps = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "accept_icmps");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.ao_required = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "ao required");
+
+	if (!should_skip_test("ao required with MD5 key", KCONFIG_TCP_MD5)) {
+		sk = prepare_defs(TCP_AO_INFO, &info);
+		info.ao_required = 1;
+		if (test_set_md5(sk, tcp_md5_client, TEST_PREFIX, -1,
+				 "long long secret")) {
+			test_error("setsockopt(TCP_MD5SIG_EXT)");
+			close(sk);
+		} else {
+			setsockopt_checked(sk, TCP_AO_INFO, &info, EKEYREJECTED,
+					   "ao required with MD5 key");
+		}
+	}
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_current = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, ENOENT, "set non-existing current key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, ENOENT, "set non-existing rnext key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_current = 1;
+	info.set_rnext = 1;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, ENOENT, "set non-existing current+rnext key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_current = 1;
+	info.current_key = 100;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "set current key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_rnext = 1;
+	info.rnext = 100;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "set rnext key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_current = 1;
+	info.set_rnext = 1;
+	info.current_key = 100;
+	info.rnext = 100;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "set current+rnext key");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	info.set_counters = 1;
+	info.pkt_good = 321;
+	info.pkt_bad = 888;
+	info.pkt_key_not_found = 654;
+	info.pkt_ao_required = 987654;
+	info.pkt_dropped_icmp = 10000;
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "set counters");
+
+	sk = prepare_defs(TCP_AO_INFO, &info);
+	setsockopt_checked(sk, TCP_AO_INFO, &info, 0, "no-op");
+}
+
+static void getsockopt_checked(int sk, struct tcp_ao_getsockopt *optval,
+			       int err, const char *tst)
+{
+	socklen_t len = sizeof(struct tcp_ao_getsockopt);
+
+	__setsockopt_checked(sk, TCP_AO_GET_KEYS, true, optval, &len, err,
+			     "get keys: ", tst);
+}
+
+static void test_einval_get_keys(void)
+{
+	struct tcp_ao_getsockopt out;
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+	getsockopt_checked(sk, &out, ENOENT, "no ao_info");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	getsockopt_checked(sk, &out, 0, "proper tcp_ao_get_mkts()");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.pkt_good = 643;
+	getsockopt_checked(sk, &out, EINVAL, "set out-only pkt_good counter");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.pkt_bad = 94;
+	getsockopt_checked(sk, &out, EINVAL, "set out-only pkt_bad counter");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.keyflags = (uint8_t)(-1);
+	getsockopt_checked(sk, &out, EINVAL, "bad keyflags");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.ifindex = 42;
+	getsockopt_checked(sk, &out, EINVAL,
+			   "ifindex without TCP_AO_KEYF_IFNINDEX");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.reserved = 1;
+	getsockopt_checked(sk, &out, EINVAL, "using reserved field");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = 0;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "no prefix, addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = 0;
+	memcpy(&out.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	getsockopt_checked(sk, &out, 0, "no prefix, any addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = 32;
+	memcpy(&out.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	getsockopt_checked(sk, &out, EINVAL, "prefix, any addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = 129;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "too big prefix");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = 2;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "too short prefix");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.prefix = DEFAULT_TEST_PREFIX;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, 0, "prefix + addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	out.prefix = DEFAULT_TEST_PREFIX;
+	getsockopt_checked(sk, &out, EINVAL, "get_all + prefix");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "get_all + addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	out.sndid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "get_all + sndid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	out.rcvid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "get_all + rcvid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_current = 1;
+	out.prefix = DEFAULT_TEST_PREFIX;
+	getsockopt_checked(sk, &out, EINVAL, "current + prefix");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_current = 1;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "current + addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_current = 1;
+	out.sndid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "current + sndid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_current = 1;
+	out.rcvid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "current + rcvid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_rnext = 1;
+	out.prefix = DEFAULT_TEST_PREFIX;
+	getsockopt_checked(sk, &out, EINVAL, "rnext + prefix");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_rnext = 1;
+	tcp_addr_to_sockaddr_in(&out.addr, &this_ip_dest, 0);
+	getsockopt_checked(sk, &out, EINVAL, "rnext + addr");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_rnext = 1;
+	out.sndid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "rnext + sndid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_rnext = 1;
+	out.rcvid = 1;
+	getsockopt_checked(sk, &out, EINVAL, "rnext + rcvid");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	out.is_current = 1;
+	getsockopt_checked(sk, &out, EINVAL, "get_all + current");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 1;
+	out.is_rnext = 1;
+	getsockopt_checked(sk, &out, EINVAL, "get_all + rnext");
+
+	sk = prepare_defs(TCP_AO_GET_KEYS, &out);
+	out.get_all = 0;
+	out.is_current = 1;
+	out.is_rnext = 1;
+	getsockopt_checked(sk, &out, 0, "current + rnext");
+}
+
+static void einval_tests(void)
+{
+	test_einval_add_key();
+	test_einval_del_key();
+	test_einval_ao_info();
+	test_einval_get_keys();
+}
+
+static void duplicate_tests(void)
+{
+	union tcp_addr network_dup;
+	struct tcp_ao_add ao, ao2;
+	int sk;
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: full copy");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	ao2 = ao;
+	memcpy(&ao2.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	ao2.prefix = 0;
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao2, sizeof(ao)))
+		test_error("setsockopt()");
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: any addr key on the socket");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	memcpy(&ao.addr, &SOCKADDR_ANY, sizeof(SOCKADDR_ANY));
+	ao.prefix = 0;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: add any addr key");
+
+	if (inet_pton(TEST_FAMILY, TEST_NETWORK, &network_dup) != 1)
+		test_error("Can't convert ip address %s", TEST_NETWORK);
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	if (test_prepare_def_key(&ao, "password", 0, network_dup,
+				 16, 0, 100, 100))
+		test_error("prepare default tcp_ao_add");
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: add any addr for the same subnet");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: full copy of a key");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	ao.rcvid = 101;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: RecvID differs");
+
+	sk = prepare_defs(TCP_AO_ADD_KEY, &ao);
+	if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY, &ao, sizeof(ao)))
+		test_error("setsockopt()");
+	ao.sndid = 101;
+	setsockopt_checked(sk, TCP_AO_ADD_KEY, &ao, EEXIST, "duplicate: SendID differs");
+}
+
+static void fetch_all_keys(int sk, struct tcp_ao_getsockopt *keys)
+{
+	socklen_t optlen = sizeof(struct tcp_ao_getsockopt);
+
+	memset(keys, 0, sizeof(struct tcp_ao_getsockopt) * FILTER_TEST_NKEYS);
+	keys[0].get_all = 1;
+	keys[0].nkeys = FILTER_TEST_NKEYS;
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, &keys[0], &optlen))
+		test_error("getsockopt");
+}
+
+static int prepare_test_keys(struct tcp_ao_getsockopt *keys)
+{
+	const char *test_password = "Test password number ";
+	struct tcp_ao_add test_ao[FILTER_TEST_NKEYS];
+	char test_password_scratch[64] = {};
+	u8 rcvid = 100, sndid = 100;
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	for (int i = 0; i < FILTER_TEST_NKEYS; i++) {
+		snprintf(test_password_scratch, 64, "%s %d", test_password, i);
+		test_prepare_key(&test_ao[i], DEFAULT_TEST_ALGO, this_ip_dest,
+			  false, false, DEFAULT_TEST_PREFIX, 0, sndid++,
+			  rcvid++, 0, 0, strlen(test_password_scratch),
+			  test_password_scratch);
+	}
+	test_ao[0].set_current = 1;
+	test_ao[1].set_rnext = 1;
+	/* One key with a different addr and overlapping sndid, rcvid */
+	tcp_addr_to_sockaddr_in(&test_ao[2].addr, &this_ip_addr, 0);
+	test_ao[2].sndid = 100;
+	test_ao[2].rcvid = 100;
+
+	/* Add keys in a random order */
+	for (int i = 0; i < FILTER_TEST_NKEYS; i++) {
+		int randidx = rand() % (FILTER_TEST_NKEYS - i);
+
+		if (setsockopt(sk, IPPROTO_TCP, TCP_AO_ADD_KEY,
+			       &test_ao[randidx], sizeof(struct tcp_ao_add)))
+			test_error("setsockopt()");
+		memcpy(&test_ao[randidx], &test_ao[FILTER_TEST_NKEYS - 1 - i],
+		       sizeof(struct tcp_ao_add));
+	}
+
+	fetch_all_keys(sk, keys);
+
+	return sk;
+}
+
+/* Assumes passwords are unique */
+static int compare_mkts(struct tcp_ao_getsockopt *expected, int nexpected,
+			struct tcp_ao_getsockopt *actual, int nactual)
+{
+	int matches = 0;
+
+	for (int i = 0; i < nexpected; i++) {
+		for (int j = 0; j < nactual; j++) {
+			if (memcmp(expected[i].key, actual[j].key,
+				   TCP_AO_MAXKEYLEN) == 0)
+				matches++;
+		}
+	}
+	return nexpected - matches;
+}
+
+static void filter_keys_checked(int sk, struct tcp_ao_getsockopt *filter,
+				struct tcp_ao_getsockopt *expected,
+				unsigned int nexpected, const char *tst)
+{
+	struct tcp_ao_getsockopt filtered_keys[FILTER_TEST_NKEYS] = {};
+	struct tcp_ao_getsockopt all_keys[FILTER_TEST_NKEYS] = {};
+	socklen_t len = sizeof(struct tcp_ao_getsockopt);
+
+	fetch_all_keys(sk, all_keys);
+	memcpy(&filtered_keys[0], filter, sizeof(struct tcp_ao_getsockopt));
+	filtered_keys[0].nkeys = FILTER_TEST_NKEYS;
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, filtered_keys, &len))
+		test_error("getsockopt");
+	if (filtered_keys[0].nkeys != nexpected) {
+		test_fail("wrong nr of keys, expected %u got %u", nexpected,
+			  filtered_keys[0].nkeys);
+		goto out_close;
+	}
+	if (compare_mkts(expected, nexpected, filtered_keys,
+			 filtered_keys[0].nkeys)) {
+		test_fail("got wrong keys back");
+		goto out_close;
+	}
+	test_ok("filter keys: %s", tst);
+
+out_close:
+	close(sk);
+	memset(filter, 0, sizeof(struct tcp_ao_getsockopt));
+}
+
+static void filter_tests(void)
+{
+	struct tcp_ao_getsockopt original_keys[FILTER_TEST_NKEYS];
+	struct tcp_ao_getsockopt expected_keys[FILTER_TEST_NKEYS];
+	struct tcp_ao_getsockopt filter = {};
+	int sk, f, nmatches;
+	socklen_t len;
+
+	f = 2;
+	sk = prepare_test_keys(original_keys);
+	filter.rcvid = original_keys[f].rcvid;
+	filter.sndid = original_keys[f].sndid;
+	memcpy(&filter.addr, &original_keys[f].addr,
+	       sizeof(original_keys[f].addr));
+	filter.prefix = original_keys[f].prefix;
+	filter_keys_checked(sk, &filter, &original_keys[f], 1,
+			    "by sndid, rcvid, address");
+
+	f = -1;
+	sk = prepare_test_keys(original_keys);
+	for (int i = 0; i < original_keys[0].nkeys; i++) {
+		if (original_keys[i].is_current) {
+			f = i;
+			break;
+		}
+	}
+	if (f < 0)
+		test_error("No current key after adding one");
+	filter.is_current = 1;
+	filter_keys_checked(sk, &filter, &original_keys[f], 1, "by is_current");
+
+	f = -1;
+	sk = prepare_test_keys(original_keys);
+	for (int i = 0; i < original_keys[0].nkeys; i++) {
+		if (original_keys[i].is_rnext) {
+			f = i;
+			break;
+		}
+	}
+	if (f < 0)
+		test_error("No rnext key after adding one");
+	filter.is_rnext = 1;
+	filter_keys_checked(sk, &filter, &original_keys[f], 1, "by is_rnext");
+
+	f = -1;
+	nmatches = 0;
+	sk = prepare_test_keys(original_keys);
+	for (int i = 0; i < original_keys[0].nkeys; i++) {
+		if (original_keys[i].sndid == 100) {
+			f = i;
+			memcpy(&expected_keys[nmatches], &original_keys[i],
+			       sizeof(struct tcp_ao_getsockopt));
+			nmatches++;
+		}
+	}
+	if (f < 0)
+		test_error("No key for sndid 100");
+	if (nmatches != 2)
+		test_error("Should have 2 keys with sndid 100");
+	filter.rcvid = original_keys[f].rcvid;
+	filter.sndid = original_keys[f].sndid;
+	filter.addr.ss_family = test_family;
+	filter_keys_checked(sk, &filter, expected_keys, nmatches,
+			    "by sndid, rcvid");
+
+	sk = prepare_test_keys(original_keys);
+	filter.get_all = 1;
+	filter.nkeys = FILTER_TEST_NKEYS / 2;
+	len = sizeof(struct tcp_ao_getsockopt);
+	if (getsockopt(sk, IPPROTO_TCP, TCP_AO_GET_KEYS, &filter, &len))
+		test_error("getsockopt");
+	if (filter.nkeys == FILTER_TEST_NKEYS)
+		test_ok("filter keys: correct nkeys when in.nkeys < matches");
+	else
+		test_fail("filter keys: wrong nkeys, expected %u got %u",
+			  FILTER_TEST_NKEYS, filter.nkeys);
+}
+
+static void *client_fn(void *arg)
+{
+	if (inet_pton(TEST_FAMILY, __TEST_CLIENT_IP(2), &tcp_md5_client) != 1)
+		test_error("Can't convert ip address");
+	extend_tests();
+	einval_tests();
+	filter_tests();
+	duplicate_tests();
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(126, client_fn, NULL);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_ao/settings b/tools/testing/selftests/net/tcp_ao/settings
new file mode 100644
index 000000000000..6091b45d226b
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/settings
@@ -0,0 +1 @@
+timeout=120
diff --git a/tools/testing/selftests/net/tcp_ao/unsigned-md5.c b/tools/testing/selftests/net/tcp_ao/unsigned-md5.c
new file mode 100644
index 000000000000..a1467b64390a
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_ao/unsigned-md5.c
@@ -0,0 +1,772 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Author: Dmitry Safonov <dima@arista.com> */
+#include <inttypes.h>
+#include "aolib.h"
+
+#define fault(type)	(inj == FAULT_ ## type)
+static const char *md5_password = "Some evil genius, enemy to mankind, must have been the first contriver.";
+static const char *ao_password = DEFAULT_TEST_PASSWORD;
+static volatile int sk_pair;
+
+static union tcp_addr client2;
+static union tcp_addr client3;
+
+static const int test_vrf_ifindex = 200;
+static const uint8_t test_vrf_tabid = 42;
+static void setup_vrfs(void)
+{
+	int err;
+
+	if (!kernel_config_has(KCONFIG_NET_VRF))
+		return;
+
+	err = add_vrf("ksft-vrf", test_vrf_tabid, test_vrf_ifindex, -1);
+	if (err)
+		test_error("Failed to add a VRF: %d", err);
+
+	err = link_set_up("ksft-vrf");
+	if (err)
+		test_error("Failed to bring up a VRF");
+
+	err = ip_route_add_vrf(veth_name, TEST_FAMILY,
+			       this_ip_addr, this_ip_dest, test_vrf_tabid);
+	if (err)
+		test_error("Failed to add a route to VRF: %d", err);
+}
+
+static void try_accept(const char *tst_name, unsigned int port,
+		       union tcp_addr *md5_addr, uint8_t md5_prefix,
+		       union tcp_addr *ao_addr, uint8_t ao_prefix,
+		       bool set_ao_required,
+		       uint8_t sndid, uint8_t rcvid, uint8_t vrf,
+		       const char *cnt_name, test_cnt cnt_expected,
+		       int needs_tcp_md5, fault_t inj)
+{
+	struct tcp_counters cnt1, cnt2;
+	uint64_t before_cnt = 0, after_cnt = 0; /* silence GCC */
+	test_cnt poll_cnt = (cnt_expected == TEST_CNT_GOOD) ? 0 : cnt_expected;
+	int lsk, err, sk = -1;
+
+	if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
+		return;
+
+	lsk = test_listen_socket(this_ip_addr, port, 1);
+
+	if (md5_addr && test_set_md5(lsk, *md5_addr, md5_prefix, -1, md5_password))
+		test_error("setsockopt(TCP_MD5SIG_EXT)");
+
+	if (ao_addr && test_add_key(lsk, ao_password,
+				    *ao_addr, ao_prefix, sndid, rcvid))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	if (set_ao_required && test_set_ao_flags(lsk, true, false))
+		test_error("setsockopt(TCP_AO_INFO)");
+
+	if (cnt_name)
+		before_cnt = netstat_get_one(cnt_name, NULL);
+	if (ao_addr && test_get_tcp_counters(lsk, &cnt1))
+		test_error("test_get_tcp_counters()");
+
+	synchronize_threads(); /* preparations done */
+
+	err = test_skpair_wait_poll(lsk, 0, poll_cnt, &sk_pair);
+	synchronize_threads(); /* connect()/accept() timeouts */
+	if (err == -ETIMEDOUT) {
+		sk_pair = err;
+		if (!fault(TIMEOUT))
+			test_fail("%s: timed out for accept()", tst_name);
+	} else if (err == -EKEYREJECTED) {
+		if (!fault(KEYREJECT))
+			test_fail("%s: key was rejected", tst_name);
+	} else if (err < 0) {
+		test_error("test_skpair_wait_poll()");
+	} else {
+		if (fault(TIMEOUT))
+			test_fail("%s: ready to accept", tst_name);
+
+		sk = accept(lsk, NULL, NULL);
+		if (sk < 0) {
+			test_error("accept()");
+		} else {
+			if (fault(TIMEOUT))
+				test_fail("%s: accepted", tst_name);
+		}
+	}
+
+	if (ao_addr && test_get_tcp_counters(lsk, &cnt2))
+		test_error("test_get_tcp_counters()");
+	close(lsk);
+
+	if (!cnt_name) {
+		test_ok("%s: no counter checks", tst_name);
+		goto out;
+	}
+
+	after_cnt = netstat_get_one(cnt_name, NULL);
+
+	if (after_cnt <= before_cnt) {
+		test_fail("%s: %s counter did not increase: %" PRIu64 " <= %" PRIu64,
+				tst_name, cnt_name, after_cnt, before_cnt);
+	} else {
+		test_ok("%s: counter %s increased %" PRIu64 " => %" PRIu64,
+			tst_name, cnt_name, before_cnt, after_cnt);
+	}
+	if (ao_addr)
+		test_assert_counters(tst_name, &cnt1, &cnt2, cnt_expected);
+
+out:
+	synchronize_threads(); /* test_kill_sk() */
+	if (sk >= 0)
+		test_kill_sk(sk);
+}
+
+static void server_add_routes(void)
+{
+	int family = TEST_FAMILY;
+
+	synchronize_threads(); /* client_add_ips() */
+
+	if (ip_route_add(veth_name, family, this_ip_addr, client2))
+		test_error("Failed to add route");
+	if (ip_route_add(veth_name, family, this_ip_addr, client3))
+		test_error("Failed to add route");
+}
+
+static void server_add_fail_tests(unsigned int *port)
+{
+	union tcp_addr addr_any = {};
+
+	try_accept("TCP-AO established: add TCP-MD5 key", (*port)++, NULL, 0,
+		   &addr_any, 0, 0, 100, 100, 0, "TCPAOGood", TEST_CNT_GOOD,
+		   1, 0);
+	try_accept("TCP-MD5 established: add TCP-AO key", (*port)++, &addr_any,
+		   0, NULL, 0, 0, 0, 0, 0, NULL, 0, 1, 0);
+	try_accept("non-signed established: add TCP-AO key", (*port)++, NULL, 0,
+		   NULL, 0, 0, 0, 0, 0, "CurrEstab", 0, 0, 0);
+}
+
+static void server_vrf_tests(unsigned int *port)
+{
+	setup_vrfs();
+}
+
+static void *server_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+	union tcp_addr addr_any = {};
+
+	server_add_routes();
+
+	try_accept("[server] AO server (INADDR_ANY): AO client", port++, NULL, 0,
+		   &addr_any, 0, 0, 100, 100, 0, "TCPAOGood",
+		   TEST_CNT_GOOD, 0, 0);
+	try_accept("[server] AO server (INADDR_ANY): MD5 client", port++, NULL, 0,
+		   &addr_any, 0, 0, 100, 100, 0, "TCPMD5Unexpected",
+		   TEST_CNT_NS_MD5_UNEXPECTED, 1, FAULT_TIMEOUT);
+	try_accept("[server] AO server (INADDR_ANY): no sign client", port++, NULL, 0,
+		   &addr_any, 0, 0, 100, 100, 0, "TCPAORequired",
+		   TEST_CNT_AO_REQUIRED, 0, FAULT_TIMEOUT);
+	try_accept("[server] AO server (AO_REQUIRED): AO client", port++, NULL, 0,
+		   &this_ip_dest, TEST_PREFIX, true,
+		   100, 100, 0, "TCPAOGood", TEST_CNT_GOOD, 0, 0);
+	try_accept("[server] AO server (AO_REQUIRED): unsigned client", port++, NULL, 0,
+		   &this_ip_dest, TEST_PREFIX, true,
+		   100, 100, 0, "TCPAORequired",
+		   TEST_CNT_AO_REQUIRED, 0, FAULT_TIMEOUT);
+
+	try_accept("[server] MD5 server (INADDR_ANY): AO client", port++, &addr_any, 0,
+		   NULL, 0, 0, 0, 0, 0, "TCPAOKeyNotFound",
+		   TEST_CNT_NS_KEY_NOT_FOUND, 1, FAULT_TIMEOUT);
+	try_accept("[server] MD5 server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
+		   NULL, 0, 0, 0, 0, 0, NULL, 0, 1, 0);
+	try_accept("[server] MD5 server (INADDR_ANY): no sign client", port++, &addr_any,
+		   0, NULL, 0, 0, 0, 0, 0, "TCPMD5NotFound",
+		   TEST_CNT_NS_MD5_NOT_FOUND, 1, FAULT_TIMEOUT);
+
+	try_accept("[server] no sign server: AO client", port++, NULL, 0,
+		   NULL, 0, 0, 0, 0, 0, "TCPAOKeyNotFound",
+		   TEST_CNT_NS_KEY_NOT_FOUND, 0, FAULT_TIMEOUT);
+	try_accept("[server] no sign server: MD5 client", port++, NULL, 0,
+		   NULL, 0, 0, 0, 0, 0, "TCPMD5Unexpected",
+		   TEST_CNT_NS_MD5_UNEXPECTED, 1, FAULT_TIMEOUT);
+	try_accept("[server] no sign server: no sign client", port++, NULL, 0,
+		   NULL, 0, 0, 0, 0, 0, "CurrEstab", 0, 0, 0);
+
+	try_accept("[server] AO+MD5 server: AO client (matching)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPAOGood", TEST_CNT_GOOD, 1, 0);
+	try_accept("[server] AO+MD5 server: AO client (misconfig, matching MD5)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND,
+		   1, FAULT_TIMEOUT);
+	try_accept("[server] AO+MD5 server: AO client (misconfig, non-matching)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPAOKeyNotFound", TEST_CNT_AO_KEY_NOT_FOUND,
+		   1, FAULT_TIMEOUT);
+	try_accept("[server] AO+MD5 server: MD5 client (matching)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, NULL, 0, 1, 0);
+	try_accept("[server] AO+MD5 server: MD5 client (misconfig, matching AO)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPMD5Unexpected",
+		   TEST_CNT_NS_MD5_UNEXPECTED, 1, FAULT_TIMEOUT);
+	try_accept("[server] AO+MD5 server: MD5 client (misconfig, non-matching)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPMD5Unexpected",
+		   TEST_CNT_NS_MD5_UNEXPECTED, 1, FAULT_TIMEOUT);
+	try_accept("[server] AO+MD5 server: no sign client (unmatched)", port++,
+		   &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "CurrEstab", 0, 1, 0);
+	try_accept("[server] AO+MD5 server: no sign client (misconfig, matching AO)",
+		   port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPAORequired",
+		   TEST_CNT_AO_REQUIRED, 1, FAULT_TIMEOUT);
+	try_accept("[server] AO+MD5 server: no sign client (misconfig, matching MD5)",
+		   port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, "TCPMD5NotFound",
+		   TEST_CNT_NS_MD5_NOT_FOUND, 1, FAULT_TIMEOUT);
+
+	/* Key rejected by the other side, failing short through skpair */
+	try_accept("[server] AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys",
+		   port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, NULL, 0, 1, FAULT_KEYREJECT);
+	try_accept("[server] AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys",
+		   port++, &this_ip_dest, TEST_PREFIX, &client2, TEST_PREFIX, 0,
+		   100, 100, 0, NULL, 0, 1, FAULT_KEYREJECT);
+
+	server_add_fail_tests(&port);
+
+	server_vrf_tests(&port);
+
+	/* client exits */
+	synchronize_threads();
+	return NULL;
+}
+
+static int client_bind(int sk, union tcp_addr bind_addr)
+{
+#ifdef IPV6_TEST
+	struct sockaddr_in6 addr = {
+		.sin6_family	= AF_INET6,
+		.sin6_port	= 0,
+		.sin6_addr	= bind_addr.a6,
+	};
+#else
+	struct sockaddr_in addr = {
+		.sin_family	= AF_INET,
+		.sin_port	= 0,
+		.sin_addr	= bind_addr.a4,
+	};
+#endif
+	return bind(sk, &addr, sizeof(addr));
+}
+
+static void try_connect(const char *tst_name, unsigned int port,
+		       union tcp_addr *md5_addr, uint8_t md5_prefix,
+		       union tcp_addr *ao_addr, uint8_t ao_prefix,
+		       uint8_t sndid, uint8_t rcvid, uint8_t vrf,
+		       fault_t inj, int needs_tcp_md5, union tcp_addr *bind_addr)
+{
+	int sk, ret;
+
+	if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
+		return;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (bind_addr && client_bind(sk, *bind_addr))
+		test_error("bind()");
+
+	if (md5_addr && test_set_md5(sk, *md5_addr, md5_prefix, -1, md5_password))
+		test_error("setsockopt(TCP_MD5SIG_EXT)");
+
+	if (ao_addr && test_add_key(sk, ao_password, *ao_addr,
+				    ao_prefix, sndid, rcvid))
+		test_error("setsockopt(TCP_AO_ADD_KEY)");
+
+	synchronize_threads(); /* preparations done */
+
+	ret = test_skpair_connect_poll(sk, this_ip_dest, port, 0, &sk_pair);
+	synchronize_threads(); /* connect()/accept() timeouts */
+	if (ret < 0) {
+		sk_pair = ret;
+		if (fault(KEYREJECT) && ret == -EKEYREJECTED)
+			test_ok("%s: connect() was prevented", tst_name);
+		else if (ret == -ETIMEDOUT && fault(TIMEOUT))
+			test_ok("%s", tst_name);
+		else if (ret == -ECONNREFUSED &&
+				(fault(TIMEOUT) || fault(KEYREJECT)))
+			test_ok("%s: refused to connect", tst_name);
+		else
+			test_error("%s: connect() returned %d", tst_name, ret);
+		goto out;
+	}
+
+	if (fault(TIMEOUT) || fault(KEYREJECT))
+		test_fail("%s: connected", tst_name);
+	else
+		test_ok("%s: connected", tst_name);
+
+out:
+	synchronize_threads(); /* test_kill_sk() */
+	if (ret > 0) /* test_skpair_connect_poll() cleans up on failure */
+		test_kill_sk(sk);
+}
+
+#define PREINSTALL_MD5_FIRST	BIT(0)
+#define PREINSTALL_AO		BIT(1)
+#define POSTINSTALL_AO		BIT(2)
+#define PREINSTALL_MD5		BIT(3)
+#define POSTINSTALL_MD5		BIT(4)
+
+static int try_add_key_vrf(int sk, union tcp_addr in_addr, uint8_t prefix,
+			   int vrf, uint8_t sndid, uint8_t rcvid,
+			   bool set_ao_required)
+{
+	uint8_t keyflags = 0;
+
+	if (vrf >= 0)
+		keyflags |= TCP_AO_KEYF_IFINDEX;
+	else
+		vrf = 0;
+	if (set_ao_required) {
+		int err = test_set_ao_flags(sk, true, 0);
+
+		if (err)
+			return err;
+	}
+	return test_add_key_vrf(sk, ao_password, keyflags, in_addr, prefix,
+				(uint8_t)vrf, sndid, rcvid);
+}
+
+static bool test_continue(const char *tst_name, int err,
+			  fault_t inj, bool added_ao)
+{
+	bool expected_to_fail;
+
+	expected_to_fail = fault(PREINSTALL_AO) && added_ao;
+	expected_to_fail |= fault(PREINSTALL_MD5) && !added_ao;
+
+	if (!err) {
+		if (!expected_to_fail)
+			return true;
+		test_fail("%s: setsockopt()s were expected to fail", tst_name);
+		return false;
+	}
+	if (err != -EKEYREJECTED || !expected_to_fail) {
+		test_error("%s: setsockopt(%s) = %d", tst_name,
+			   added_ao ? "TCP_AO_ADD_KEY" : "TCP_MD5SIG_EXT", err);
+		return false;
+	}
+	test_ok("%s: prefailed as expected: %m", tst_name);
+	return false;
+}
+
+static int open_add(const char *tst_name, unsigned int port,
+		    unsigned int strategy,
+		    union tcp_addr md5_addr, uint8_t md5_prefix, int md5_vrf,
+		    union tcp_addr ao_addr, uint8_t ao_prefix,
+		    int ao_vrf, bool set_ao_required,
+		    uint8_t sndid, uint8_t rcvid,
+		    fault_t inj)
+{
+	int sk;
+
+	sk = socket(test_family, SOCK_STREAM, IPPROTO_TCP);
+	if (sk < 0)
+		test_error("socket()");
+
+	if (client_bind(sk, this_ip_addr))
+		test_error("bind()");
+
+	if (strategy & PREINSTALL_MD5_FIRST) {
+		if (test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password))
+			test_error("setsockopt(TCP_MD5SIG_EXT)");
+	}
+
+	if (strategy & PREINSTALL_AO) {
+		int err = try_add_key_vrf(sk, ao_addr, ao_prefix, ao_vrf,
+					  sndid, rcvid, set_ao_required);
+
+		if (!test_continue(tst_name, err, inj, true)) {
+			close(sk);
+			return -1;
+		}
+	}
+
+	if (strategy & PREINSTALL_MD5) {
+		errno = 0;
+		test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password);
+		if (!test_continue(tst_name, -errno, inj, false)) {
+			close(sk);
+			return -1;
+		}
+	}
+
+	return sk;
+}
+
+static void try_to_preadd(const char *tst_name, unsigned int port,
+			  unsigned int strategy,
+			  union tcp_addr md5_addr, uint8_t md5_prefix,
+			  int md5_vrf,
+			  union tcp_addr ao_addr, uint8_t ao_prefix,
+			  int ao_vrf, bool set_ao_required,
+			  uint8_t sndid, uint8_t rcvid,
+			  int needs_tcp_md5, int needs_vrf, fault_t inj)
+{
+	int sk;
+
+	if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
+		return;
+	if (needs_vrf && should_skip_test(tst_name, KCONFIG_NET_VRF))
+		return;
+
+	sk = open_add(tst_name, port, strategy, md5_addr, md5_prefix, md5_vrf,
+		      ao_addr, ao_prefix, ao_vrf, set_ao_required,
+		      sndid, rcvid, inj);
+	if (sk < 0)
+		return;
+
+	test_ok("%s", tst_name);
+	close(sk);
+}
+
+static void try_to_add(const char *tst_name, unsigned int port,
+		       unsigned int strategy,
+		       union tcp_addr md5_addr, uint8_t md5_prefix,
+		       int md5_vrf,
+		       union tcp_addr ao_addr, uint8_t ao_prefix,
+		       int ao_vrf, uint8_t sndid, uint8_t rcvid,
+		       int needs_tcp_md5, fault_t inj)
+{
+	int sk, ret;
+
+	if (needs_tcp_md5 && should_skip_test(tst_name, KCONFIG_TCP_MD5))
+		return;
+
+	sk = open_add(tst_name, port, strategy, md5_addr, md5_prefix, md5_vrf,
+		      ao_addr, ao_prefix, ao_vrf, 0, sndid, rcvid, inj);
+	if (sk < 0)
+		return;
+
+	synchronize_threads(); /* preparations done */
+
+	ret = test_skpair_connect_poll(sk, this_ip_dest, port, 0, &sk_pair);
+
+	synchronize_threads(); /* connect()/accept() timeouts */
+	if (ret < 0) {
+		test_error("%s: connect() returned %d", tst_name, ret);
+		goto out;
+	}
+
+	if (strategy & POSTINSTALL_MD5) {
+		if (test_set_md5(sk, md5_addr, md5_prefix, md5_vrf, md5_password)) {
+			if (fault(POSTINSTALL)) {
+				test_ok("%s: postfailed as expected", tst_name);
+				goto out;
+			} else {
+				test_error("setsockopt(TCP_MD5SIG_EXT)");
+			}
+		} else if (fault(POSTINSTALL)) {
+			test_fail("%s: post setsockopt() was expected to fail", tst_name);
+			goto out;
+		}
+	}
+
+	if (strategy & POSTINSTALL_AO) {
+		if (try_add_key_vrf(sk, ao_addr, ao_prefix, ao_vrf,
+				   sndid, rcvid, 0)) {
+			if (fault(POSTINSTALL)) {
+				test_ok("%s: postfailed as expected", tst_name);
+				goto out;
+			} else {
+				test_error("setsockopt(TCP_AO_ADD_KEY)");
+			}
+		} else if (fault(POSTINSTALL)) {
+			test_fail("%s: post setsockopt() was expected to fail", tst_name);
+			goto out;
+		}
+	}
+
+out:
+	synchronize_threads(); /* test_kill_sk() */
+	if (ret > 0) /* test_skpair_connect_poll() cleans up on failure */
+		test_kill_sk(sk);
+}
+
+static void client_add_ip(union tcp_addr *client, const char *ip)
+{
+	int err, family = TEST_FAMILY;
+
+	if (inet_pton(family, ip, client) != 1)
+		test_error("Can't convert ip address %s", ip);
+
+	err = ip_addr_add(veth_name, family, *client, TEST_PREFIX);
+	if (err)
+		test_error("Failed to add ip address: %d", err);
+}
+
+static void client_add_ips(void)
+{
+	client_add_ip(&client2, __TEST_CLIENT_IP(2));
+	client_add_ip(&client3, __TEST_CLIENT_IP(3));
+	synchronize_threads(); /* server_add_routes() */
+}
+
+static void client_add_fail_tests(unsigned int *port)
+{
+	try_to_add("TCP-AO established: add TCP-MD5 key",
+		   (*port)++, POSTINSTALL_MD5 | PREINSTALL_AO,
+		   this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
+		   100, 100, 1, FAULT_POSTINSTALL);
+	try_to_add("TCP-MD5 established: add TCP-AO key",
+		   (*port)++, PREINSTALL_MD5 | POSTINSTALL_AO,
+		   this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
+		   100, 100, 1, FAULT_POSTINSTALL);
+	try_to_add("non-signed established: add TCP-AO key",
+		   (*port)++, POSTINSTALL_AO,
+		   this_ip_dest, TEST_PREFIX, -1, this_ip_dest, TEST_PREFIX, 0,
+		   100, 100, 0, FAULT_POSTINSTALL);
+
+	try_to_add("TCP-AO key intersects with existing TCP-MD5 key",
+		   (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		   this_ip_addr, TEST_PREFIX, -1, this_ip_addr, TEST_PREFIX, -1,
+		   100, 100, 1, FAULT_PREINSTALL_AO);
+	try_to_add("TCP-MD5 key intersects with existing TCP-AO key",
+		   (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		   this_ip_addr, TEST_PREFIX, -1, this_ip_addr, TEST_PREFIX, -1,
+		   100, 100, 1, FAULT_PREINSTALL_MD5);
+
+	try_to_preadd("TCP-MD5 key + TCP-AO required",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, -1, true,
+		      100, 100, 1, 0, FAULT_PREINSTALL_AO);
+	try_to_preadd("TCP-AO required on socket + TCP-MD5 key",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, -1, true,
+		      100, 100, 1, 0, FAULT_PREINSTALL_MD5);
+}
+
+static void client_vrf_tests(unsigned int *port)
+{
+	setup_vrfs();
+
+	/* The following restrictions for setsockopt()s are expected:
+	 *
+	 * |--------------|-----------------|-------------|-------------|
+	 * |              | MD5 key without |   MD5 key   |   MD5 key   |
+	 * |              |     l3index     |  l3index=0  |  l3index=N  |
+	 * |--------------|-----------------|-------------|-------------|
+	 * |  TCP-AO key  |                 |             |             |
+	 * |  without     |     reject      |    reject   |    reject   |
+	 * |  l3index     |                 |             |             |
+	 * |--------------|-----------------|-------------|-------------|
+	 * |  TCP-AO key  |                 |             |             |
+	 * |  l3index=0   |     reject      |    reject   |    allow    |
+	 * |--------------|-----------------|-------------|-------------|
+	 * |  TCP-AO key  |                 |             |             |
+	 * |  l3index=N   |     reject      |    allow    |    reject   |
+	 * |--------------|-----------------|-------------|-------------|
+	 */
+	try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (no l3index)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (no l3index)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+	try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (no l3index)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+	try_to_preadd("VRF: TCP-AO key (no l3index) + TCP-MD5 key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (no l3index)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+
+	try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (no l3index)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+	try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+	try_to_preadd("VRF: TCP-AO key (l3index=0) + TCP-MD5 key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, 0);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, 0, 0, 100, 100,
+		      1, 1, 0);
+
+	try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (no l3index)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, -1, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (no l3index) + TCP-AO key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, -1,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+	try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=0)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
+		      1, 1, 0);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=0) + TCP-AO key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, 0,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
+		      1, 1, 0);
+	try_to_preadd("VRF: TCP-AO key (l3index=N) + TCP-MD5 key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5 | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_MD5);
+	try_to_preadd("VRF: TCP-MD5 key (l3index=N) + TCP-AO key (l3index=N)",
+		      (*port)++, PREINSTALL_MD5_FIRST | PREINSTALL_AO,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex,
+		      this_ip_addr, TEST_PREFIX, test_vrf_ifindex, 0, 100, 100,
+		      1, 1, FAULT_PREINSTALL_AO);
+}
+
+static void *client_fn(void *arg)
+{
+	unsigned int port = test_server_port;
+	union tcp_addr addr_any = {};
+
+	client_add_ips();
+
+	try_connect("AO server (INADDR_ANY): AO client", port++, NULL, 0,
+		    &addr_any, 0, 100, 100, 0, 0, 0, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_MD5_UNEXPECTED, this_ip_addr,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
+		    NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_AO_REQUIRED, this_ip_addr,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO server (INADDR_ANY): unsigned client", port++, NULL, 0,
+		    NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &this_ip_addr);
+	try_connect("AO server (AO_REQUIRED): AO client", port++, NULL, 0,
+		    &addr_any, 0, 100, 100, 0, 0, 0, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_AO_REQUIRED, client2,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO server (AO_REQUIRED): unsigned client", port++, NULL, 0,
+		    NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &client2);
+
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("MD5 server (INADDR_ANY): AO client", port++, NULL, 0,
+		   &addr_any, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
+	try_connect("MD5 server (INADDR_ANY): MD5 client", port++, &addr_any, 0,
+		   NULL, 0, 100, 100, 0, 0, 1, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_MD5_REQUIRED, this_ip_addr,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("MD5 server (INADDR_ANY): no sign client", port++, NULL, 0,
+		   NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
+
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("no sign server: AO client", port++, NULL, 0,
+		   &addr_any, 0, 100, 100, 0, FAULT_TIMEOUT, 0, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_MD5_UNEXPECTED, this_ip_addr,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("no sign server: MD5 client", port++, &addr_any, 0,
+		   NULL, 0, 100, 100, 0, FAULT_TIMEOUT, 1, &this_ip_addr);
+	try_connect("no sign server: no sign client", port++, NULL, 0,
+		   NULL, 0, 100, 100, 0, 0, 0, &this_ip_addr);
+
+	try_connect("AO+MD5 server: AO client (matching)", port++, NULL, 0,
+		   &addr_any, 0, 100, 100, 0, 0, 1, &client2);
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, this_ip_addr, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("AO+MD5 server: AO client (misconfig, matching MD5)",
+		   port++, NULL, 0, &addr_any, 0, 100, 100, 0,
+		   FAULT_TIMEOUT, 1, &this_ip_addr);
+	trace_ao_event_expect(TCP_AO_KEY_NOT_FOUND, client3, this_ip_dest,
+			      -1, port, 0, 0, 1, 0, 0, 0, 100, 100, -1);
+	try_connect("AO+MD5 server: AO client (misconfig, non-matching)",
+		   port++, NULL, 0, &addr_any, 0, 100, 100, 0,
+		   FAULT_TIMEOUT, 1, &client3);
+	try_connect("AO+MD5 server: MD5 client (matching)", port++, &addr_any, 0,
+		   NULL, 0, 100, 100, 0, 0, 1, &this_ip_addr);
+	trace_hash_event_expect(TCP_HASH_MD5_UNEXPECTED, client2,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO+MD5 server: MD5 client (misconfig, matching AO)",
+		   port++, &addr_any, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
+		   1, &client2);
+	trace_hash_event_expect(TCP_HASH_MD5_UNEXPECTED, client3,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO+MD5 server: MD5 client (misconfig, non-matching)",
+		   port++, &addr_any, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
+		   1, &client3);
+	try_connect("AO+MD5 server: no sign client (unmatched)",
+		   port++, NULL, 0, NULL, 0, 100, 100, 0, 0, 1, &client3);
+	trace_hash_event_expect(TCP_HASH_AO_REQUIRED, client2,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO+MD5 server: no sign client (misconfig, matching AO)",
+		   port++, NULL, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
+		   1, &client2);
+	trace_hash_event_expect(TCP_HASH_MD5_REQUIRED, this_ip_addr,
+				this_ip_dest, -1, port, 0, 0, 1, 0, 0, 0);
+	try_connect("AO+MD5 server: no sign client (misconfig, matching MD5)",
+		   port++, NULL, 0, NULL, 0, 100, 100, 0, FAULT_TIMEOUT,
+		   1, &this_ip_addr);
+
+	try_connect("AO+MD5 server: client with both [TCP-MD5] and TCP-AO keys",
+		   port++, &this_ip_addr, TEST_PREFIX,
+		   &client2, TEST_PREFIX, 100, 100, 0, FAULT_KEYREJECT,
+		   1, &this_ip_addr);
+	try_connect("AO+MD5 server: client with both TCP-MD5 and [TCP-AO] keys",
+		   port++, &this_ip_addr, TEST_PREFIX,
+		   &client2, TEST_PREFIX, 100, 100, 0, FAULT_KEYREJECT,
+		   1, &client2);
+
+	client_add_fail_tests(&port);
+	client_vrf_tests(&port);
+
+	return NULL;
+}
+
+int main(int argc, char *argv[])
+{
+	test_init(73, server_fn, client_fn);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_fastopen_backup_key.c b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
new file mode 100644
index 000000000000..4b3f9b5e50fe
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_fastopen_backup_key.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Test key rotation for TFO.
+ * New keys are 'rotated' in two steps:
+ * 1) Add new key as the 'backup' key 'behind' the primary key
+ * 2) Make new key the primary by swapping the backup and primary keys
+ *
+ * The rotation is done in stages using multiple sockets bound
+ * to the same port via SO_REUSEPORT. This simulates key rotation
+ * behind say a load balancer. We verify that across the rotation
+ * there are no cases in which a cookie is not accepted by verifying
+ * that TcpExtTCPFastOpenPassiveFail remains 0.
+ */
+#define _GNU_SOURCE
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <unistd.h>
+#include <netinet/tcp.h>
+#include <fcntl.h>
+#include <time.h>
+
+#include "kselftest.h"
+
+#ifndef TCP_FASTOPEN_KEY
+#define TCP_FASTOPEN_KEY 33
+#endif
+
+#define N_LISTEN 10
+#define PROC_FASTOPEN_KEY "/proc/sys/net/ipv4/tcp_fastopen_key"
+#define KEY_LENGTH 16
+
+static bool do_ipv6;
+static bool do_sockopt;
+static bool do_rotate;
+static int key_len = KEY_LENGTH;
+static int rcv_fds[N_LISTEN];
+static int proc_fd;
+static const char *IP4_ADDR = "127.0.0.1";
+static const char *IP6_ADDR = "::1";
+static const int PORT = 8891;
+
+static void get_keys(int fd, uint32_t *keys)
+{
+	char buf[128];
+	socklen_t len = KEY_LENGTH * 2;
+
+	if (do_sockopt) {
+		if (getsockopt(fd, SOL_TCP, TCP_FASTOPEN_KEY, keys, &len))
+			error(1, errno, "Unable to get key");
+		return;
+	}
+	lseek(proc_fd, 0, SEEK_SET);
+	if (read(proc_fd, buf, sizeof(buf)) <= 0)
+		error(1, errno, "Unable to read %s", PROC_FASTOPEN_KEY);
+	if (sscanf(buf, "%x-%x-%x-%x,%x-%x-%x-%x", keys, keys + 1, keys + 2,
+	    keys + 3, keys + 4, keys + 5, keys + 6, keys + 7) != 8)
+		error(1, 0, "Unable to parse %s", PROC_FASTOPEN_KEY);
+}
+
+static void set_keys(int fd, uint32_t *keys)
+{
+	char buf[128];
+
+	if (do_sockopt) {
+		if (setsockopt(fd, SOL_TCP, TCP_FASTOPEN_KEY, keys,
+		    key_len))
+			error(1, errno, "Unable to set key");
+		return;
+	}
+	if (do_rotate)
+		snprintf(buf, 128, "%08x-%08x-%08x-%08x,%08x-%08x-%08x-%08x",
+			 keys[0], keys[1], keys[2], keys[3], keys[4], keys[5],
+			 keys[6], keys[7]);
+	else
+		snprintf(buf, 128, "%08x-%08x-%08x-%08x",
+			 keys[0], keys[1], keys[2], keys[3]);
+	lseek(proc_fd, 0, SEEK_SET);
+	if (write(proc_fd, buf, sizeof(buf)) <= 0)
+		error(1, errno, "Unable to write %s", PROC_FASTOPEN_KEY);
+}
+
+static void build_rcv_fd(int family, int proto, int *rcv_fds)
+{
+	struct sockaddr_in  addr4 = {0};
+	struct sockaddr_in6 addr6 = {0};
+	struct sockaddr *addr;
+	int opt = 1, i, sz;
+	int qlen = 100;
+	uint32_t keys[8];
+
+	switch (family) {
+	case AF_INET:
+		addr4.sin_family = family;
+		addr4.sin_addr.s_addr = htonl(INADDR_ANY);
+		addr4.sin_port = htons(PORT);
+		sz = sizeof(addr4);
+		addr = (struct sockaddr *)&addr4;
+		break;
+	case AF_INET6:
+		addr6.sin6_family = AF_INET6;
+		addr6.sin6_addr = in6addr_any;
+		addr6.sin6_port = htons(PORT);
+		sz = sizeof(addr6);
+		addr = (struct sockaddr *)&addr6;
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+		/* clang does not recognize error() above as terminating
+		 * the program, so it complains that saddr, sz are
+		 * not initialized when this code path is taken. Silence it.
+		 */
+		return;
+	}
+	for (i = 0; i < ARRAY_SIZE(keys); i++)
+		keys[i] = rand();
+	for (i = 0; i < N_LISTEN; i++) {
+		rcv_fds[i] = socket(family, proto, 0);
+		if (rcv_fds[i] < 0)
+			error(1, errno, "failed to create receive socket");
+		if (setsockopt(rcv_fds[i], SOL_SOCKET, SO_REUSEPORT, &opt,
+			       sizeof(opt)))
+			error(1, errno, "failed to set SO_REUSEPORT");
+		if (bind(rcv_fds[i], addr, sz))
+			error(1, errno, "failed to bind receive socket");
+		if (setsockopt(rcv_fds[i], SOL_TCP, TCP_FASTOPEN, &qlen,
+			       sizeof(qlen)))
+			error(1, errno, "failed to set TCP_FASTOPEN");
+		set_keys(rcv_fds[i], keys);
+		if (proto == SOCK_STREAM && listen(rcv_fds[i], 10))
+			error(1, errno, "failed to listen on receive port");
+	}
+}
+
+static int connect_and_send(int family, int proto)
+{
+	struct sockaddr_in  saddr4 = {0};
+	struct sockaddr_in  daddr4 = {0};
+	struct sockaddr_in6 saddr6 = {0};
+	struct sockaddr_in6 daddr6 = {0};
+	struct sockaddr *saddr, *daddr;
+	int fd, sz, ret;
+	char data[1];
+
+	switch (family) {
+	case AF_INET:
+		saddr4.sin_family = AF_INET;
+		saddr4.sin_addr.s_addr = htonl(INADDR_ANY);
+		saddr4.sin_port = 0;
+
+		daddr4.sin_family = AF_INET;
+		if (!inet_pton(family, IP4_ADDR, &daddr4.sin_addr.s_addr))
+			error(1, errno, "inet_pton failed: %s", IP4_ADDR);
+		daddr4.sin_port = htons(PORT);
+
+		sz = sizeof(saddr4);
+		saddr = (struct sockaddr *)&saddr4;
+		daddr = (struct sockaddr *)&daddr4;
+		break;
+	case AF_INET6:
+		saddr6.sin6_family = AF_INET6;
+		saddr6.sin6_addr = in6addr_any;
+
+		daddr6.sin6_family = AF_INET6;
+		if (!inet_pton(family, IP6_ADDR, &daddr6.sin6_addr))
+			error(1, errno, "inet_pton failed: %s", IP6_ADDR);
+		daddr6.sin6_port = htons(PORT);
+
+		sz = sizeof(saddr6);
+		saddr = (struct sockaddr *)&saddr6;
+		daddr = (struct sockaddr *)&daddr6;
+		break;
+	default:
+		error(1, 0, "Unsupported family %d", family);
+		/* clang does not recognize error() above as terminating
+		 * the program, so it complains that saddr, daddr, sz are
+		 * not initialized when this code path is taken. Silence it.
+		 */
+		return -1;
+	}
+	fd = socket(family, proto, 0);
+	if (fd < 0)
+		error(1, errno, "failed to create send socket");
+	if (bind(fd, saddr, sz))
+		error(1, errno, "failed to bind send socket");
+	data[0] = 'a';
+	ret = sendto(fd, data, 1, MSG_FASTOPEN, daddr, sz);
+	if (ret != 1)
+		error(1, errno, "failed to sendto");
+
+	return fd;
+}
+
+static bool is_listen_fd(int fd)
+{
+	int i;
+
+	for (i = 0; i < N_LISTEN; i++) {
+		if (rcv_fds[i] == fd)
+			return true;
+	}
+	return false;
+}
+
+static void rotate_key(int fd)
+{
+	static int iter;
+	static uint32_t new_key[4];
+	uint32_t keys[8];
+	uint32_t tmp_key[4];
+	int i;
+
+	if (iter < N_LISTEN) {
+		/* first set new key as backups */
+		if (iter == 0) {
+			for (i = 0; i < ARRAY_SIZE(new_key); i++)
+				new_key[i] = rand();
+		}
+		get_keys(fd, keys);
+		memcpy(keys + 4, new_key, KEY_LENGTH);
+		set_keys(fd, keys);
+	} else {
+		/* swap the keys */
+		get_keys(fd, keys);
+		memcpy(tmp_key, keys + 4, KEY_LENGTH);
+		memcpy(keys + 4, keys, KEY_LENGTH);
+		memcpy(keys, tmp_key, KEY_LENGTH);
+		set_keys(fd, keys);
+	}
+	if (++iter >= (N_LISTEN * 2))
+		iter = 0;
+}
+
+static void run_one_test(int family)
+{
+	struct epoll_event ev;
+	int i, send_fd;
+	int n_loops = 10000;
+	int rotate_key_fd = 0;
+	int key_rotate_interval = 50;
+	int fd, epfd;
+	char buf[1];
+
+	build_rcv_fd(family, SOCK_STREAM, rcv_fds);
+	epfd = epoll_create(1);
+	if (epfd < 0)
+		error(1, errno, "failed to create epoll");
+	ev.events = EPOLLIN;
+	for (i = 0; i < N_LISTEN; i++) {
+		ev.data.fd = rcv_fds[i];
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, rcv_fds[i], &ev))
+			error(1, errno, "failed to register sock epoll");
+	}
+	while (n_loops--) {
+		send_fd = connect_and_send(family, SOCK_STREAM);
+		if (do_rotate && ((n_loops % key_rotate_interval) == 0)) {
+			rotate_key(rcv_fds[rotate_key_fd]);
+			if (++rotate_key_fd >= N_LISTEN)
+				rotate_key_fd = 0;
+		}
+		while (1) {
+			i = epoll_wait(epfd, &ev, 1, -1);
+			if (i < 0)
+				error(1, errno, "epoll_wait failed");
+			if (is_listen_fd(ev.data.fd)) {
+				fd = accept(ev.data.fd, NULL, NULL);
+				if (fd < 0)
+					error(1, errno, "failed to accept");
+				ev.data.fd = fd;
+				if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev))
+					error(1, errno, "failed epoll add");
+				continue;
+			}
+			i = recv(ev.data.fd, buf, sizeof(buf), 0);
+			if (i != 1)
+				error(1, errno, "failed recv data");
+			if (epoll_ctl(epfd, EPOLL_CTL_DEL, ev.data.fd, NULL))
+				error(1, errno, "failed epoll del");
+			close(ev.data.fd);
+			break;
+		}
+		close(send_fd);
+	}
+	for (i = 0; i < N_LISTEN; i++)
+		close(rcv_fds[i]);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "46sr")) != -1) {
+		switch (c) {
+		case '4':
+			do_ipv6 = false;
+			break;
+		case '6':
+			do_ipv6 = true;
+			break;
+		case 's':
+			do_sockopt = true;
+			break;
+		case 'r':
+			do_rotate = true;
+			key_len = KEY_LENGTH * 2;
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+	proc_fd = open(PROC_FASTOPEN_KEY, O_RDWR);
+	if (proc_fd < 0)
+		error(1, errno, "Unable to open %s", PROC_FASTOPEN_KEY);
+	srand(time(NULL));
+	if (do_ipv6)
+		run_one_test(AF_INET6);
+	else
+		run_one_test(AF_INET);
+	close(proc_fd);
+	fprintf(stderr, "PASS\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_fastopen_backup_key.sh b/tools/testing/selftests/net/tcp_fastopen_backup_key.sh
new file mode 100755
index 000000000000..f6e65674b83c
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_fastopen_backup_key.sh
@@ -0,0 +1,55 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# rotate TFO keys for ipv4/ipv6 and verify that the client does
+# not present an invalid cookie.
+
+set +x
+set -e
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+setup() {
+	ip netns add "${NETNS}"
+	ip -netns "${NETNS}" link set lo up
+	ip netns exec "${NETNS}" sysctl -w net.ipv4.tcp_fastopen=3 \
+		>/dev/null 2>&1
+}
+
+cleanup() {
+	ip netns del "${NETNS}"
+}
+
+trap cleanup EXIT
+setup
+
+do_test() {
+	# flush routes before each run, otherwise successive runs can
+	# initially present an old TFO cookie
+	ip netns exec "${NETNS}" ip tcp_metrics flush
+	ip netns exec "${NETNS}" ./tcp_fastopen_backup_key "$1"
+	val=$(ip netns exec "${NETNS}" nstat -az | \
+		grep TcpExtTCPFastOpenPassiveFail | awk '{print $2}')
+	if [ "$val" != 0 ]; then
+		echo "FAIL: TcpExtTCPFastOpenPassiveFail non-zero"
+		return 1
+	fi
+}
+
+do_test "-4"
+do_test "-6"
+do_test "-4"
+do_test "-6"
+do_test "-4s"
+do_test "-6s"
+do_test "-4s"
+do_test "-6s"
+do_test "-4r"
+do_test "-6r"
+do_test "-4r"
+do_test "-6r"
+do_test "-4sr"
+do_test "-6sr"
+do_test "-4sr"
+do_test "-6sr"
+echo "all tests done"
diff --git a/tools/testing/selftests/net/tcp_inq.c b/tools/testing/selftests/net/tcp_inq.c
new file mode 100644
index 000000000000..bd6a9c7a3e8a
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_inq.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2018 Google Inc.
+ * Author: Soheil Hassas Yeganeh (soheil@google.com)
+ *
+ * Simple example on how to use TCP_INQ and TCP_CM_INQ.
+ */
+#define _GNU_SOURCE
+
+#include <error.h>
+#include <netinet/in.h>
+#include <netinet/tcp.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <unistd.h>
+
+#ifndef TCP_INQ
+#define TCP_INQ 36
+#endif
+
+#ifndef TCP_CM_INQ
+#define TCP_CM_INQ TCP_INQ
+#endif
+
+#define BUF_SIZE 8192
+#define CMSG_SIZE 32
+
+static int family = AF_INET6;
+static socklen_t addr_len = sizeof(struct sockaddr_in6);
+static int port = 4974;
+
+static void setup_loopback_addr(int family, struct sockaddr_storage *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (family) {
+	case PF_INET:
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = AF_INET;
+		addr4->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+		addr4->sin_port = htons(port);
+		break;
+	case PF_INET6:
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_addr = in6addr_loopback;
+		addr6->sin6_port = htons(port);
+		break;
+	default:
+		error(1, 0, "illegal family");
+	}
+}
+
+void *start_server(void *arg)
+{
+	int server_fd = (int)(unsigned long)arg;
+	struct sockaddr_in addr;
+	socklen_t addrlen = sizeof(addr);
+	char *buf;
+	int fd;
+	int r;
+
+	buf = malloc(BUF_SIZE);
+
+	for (;;) {
+		fd = accept(server_fd, (struct sockaddr *)&addr, &addrlen);
+		if (fd == -1) {
+			perror("accept");
+			break;
+		}
+		do {
+			r = send(fd, buf, BUF_SIZE, 0);
+		} while (r < 0 && errno == EINTR);
+		if (r < 0)
+			perror("send");
+		if (r != BUF_SIZE)
+			fprintf(stderr, "can only send %d bytes\n", r);
+		/* TCP_INQ can overestimate in-queue by one byte if we send
+		 * the FIN packet. Sleep for 1 second, so that the client
+		 * likely invoked recvmsg().
+		 */
+		sleep(1);
+		close(fd);
+	}
+
+	free(buf);
+	close(server_fd);
+	pthread_exit(0);
+}
+
+int main(int argc, char *argv[])
+{
+	struct sockaddr_storage listen_addr, addr;
+	int c, one = 1, inq = -1;
+	pthread_t server_thread;
+	char cmsgbuf[CMSG_SIZE];
+	struct iovec iov[1];
+	struct cmsghdr *cm;
+	struct msghdr msg;
+	int server_fd, fd;
+	char *buf;
+
+	while ((c = getopt(argc, argv, "46p:")) != -1) {
+		switch (c) {
+		case '4':
+			family = PF_INET;
+			addr_len = sizeof(struct sockaddr_in);
+			break;
+		case '6':
+			family = PF_INET6;
+			addr_len = sizeof(struct sockaddr_in6);
+			break;
+		case 'p':
+			port = atoi(optarg);
+			break;
+		}
+	}
+
+	server_fd = socket(family, SOCK_STREAM, 0);
+	if (server_fd < 0)
+		error(1, errno, "server socket");
+	setup_loopback_addr(family, &listen_addr);
+	if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR,
+		       &one, sizeof(one)) != 0)
+		error(1, errno, "setsockopt(SO_REUSEADDR)");
+	if (bind(server_fd, (const struct sockaddr *)&listen_addr,
+		 addr_len) == -1)
+		error(1, errno, "bind");
+	if (listen(server_fd, 128) == -1)
+		error(1, errno, "listen");
+	if (pthread_create(&server_thread, NULL, start_server,
+			   (void *)(unsigned long)server_fd) != 0)
+		error(1, errno, "pthread_create");
+
+	fd = socket(family, SOCK_STREAM, 0);
+	if (fd < 0)
+		error(1, errno, "client socket");
+	setup_loopback_addr(family, &addr);
+	if (connect(fd, (const struct sockaddr *)&addr, addr_len) == -1)
+		error(1, errno, "connect");
+	if (setsockopt(fd, SOL_TCP, TCP_INQ, &one, sizeof(one)) != 0)
+		error(1, errno, "setsockopt(TCP_INQ)");
+
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_iov = iov;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cmsgbuf;
+	msg.msg_controllen = sizeof(cmsgbuf);
+	msg.msg_flags = 0;
+
+	buf = malloc(BUF_SIZE);
+	iov[0].iov_base = buf;
+	iov[0].iov_len = BUF_SIZE / 2;
+
+	if (recvmsg(fd, &msg, 0) != iov[0].iov_len)
+		error(1, errno, "recvmsg");
+	if (msg.msg_flags & MSG_CTRUNC)
+		error(1, 0, "control message is truncated");
+
+	for (cm = CMSG_FIRSTHDR(&msg); cm; cm = CMSG_NXTHDR(&msg, cm))
+		if (cm->cmsg_level == SOL_TCP && cm->cmsg_type == TCP_CM_INQ)
+			inq = *((int *) CMSG_DATA(cm));
+
+	if (inq != BUF_SIZE - iov[0].iov_len) {
+		fprintf(stderr, "unexpected inq: %d\n", inq);
+		exit(1);
+	}
+
+	printf("PASSED\n");
+	free(buf);
+	close(fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_mmap.c b/tools/testing/selftests/net/tcp_mmap.c
new file mode 100644
index 000000000000..4fcce5150850
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_mmap.c
@@ -0,0 +1,612 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2018 Google Inc.
+ * Author: Eric Dumazet (edumazet@google.com)
+ *
+ * Reference program demonstrating tcp mmap() usage,
+ * and SO_RCVLOWAT hints for receiver.
+ *
+ * Note : NIC with header split is needed to use mmap() on TCP :
+ * Each incoming frame must be a multiple of PAGE_SIZE bytes of TCP payload.
+ *
+ * How to use on loopback interface :
+ *
+ *  ifconfig lo mtu 61512  # 15*4096 + 40 (ipv6 header) + 32 (TCP with TS option header)
+ *  tcp_mmap -s -z &
+ *  tcp_mmap -H ::1 -z
+ *
+ *  Or leave default lo mtu, but use -M option to set TCP_MAXSEG option to (4096 + 12)
+ *      (4096 : page size on x86, 12: TCP TS option length)
+ *  tcp_mmap -s -z -M $((4096+12)) &
+ *  tcp_mmap -H ::1 -z -M $((4096+12))
+ *
+ * Note: -z option on sender uses MSG_ZEROCOPY, which forces a copy when packets go through loopback interface.
+ *       We might use sendfile() instead, but really this test program is about mmap(), for receivers ;)
+ *
+ * $ ./tcp_mmap -s &                                 # Without mmap()
+ * $ for i in {1..4}; do ./tcp_mmap -H ::1 -z ; done
+ * received 32768 MB (0 % mmap'ed) in 14.1157 s, 19.4732 Gbit
+ *   cpu usage user:0.057 sys:7.815, 240.234 usec per MB, 65531 c-switches
+ * received 32768 MB (0 % mmap'ed) in 14.6833 s, 18.7204 Gbit
+ *  cpu usage user:0.043 sys:8.103, 248.596 usec per MB, 65524 c-switches
+ * received 32768 MB (0 % mmap'ed) in 11.143 s, 24.6682 Gbit
+ *   cpu usage user:0.044 sys:6.576, 202.026 usec per MB, 65519 c-switches
+ * received 32768 MB (0 % mmap'ed) in 14.9056 s, 18.4413 Gbit
+ *   cpu usage user:0.036 sys:8.193, 251.129 usec per MB, 65530 c-switches
+ * $ kill %1   # kill tcp_mmap server
+ *
+ * $ ./tcp_mmap -s -z &                              # With mmap()
+ * $ for i in {1..4}; do ./tcp_mmap -H ::1 -z ; done
+ * received 32768 MB (99.9939 % mmap'ed) in 6.73792 s, 40.7956 Gbit
+ *   cpu usage user:0.045 sys:2.827, 87.6465 usec per MB, 65532 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.26732 s, 37.8238 Gbit
+ *   cpu usage user:0.037 sys:3.087, 95.3369 usec per MB, 65532 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.61661 s, 36.0893 Gbit
+ *   cpu usage user:0.046 sys:3.559, 110.016 usec per MB, 65529 c-switches
+ * received 32768 MB (99.9939 % mmap'ed) in 7.43764 s, 36.9577 Gbit
+ *   cpu usage user:0.035 sys:3.467, 106.873 usec per MB, 65530 c-switches
+ */
+#define _GNU_SOURCE
+#include <pthread.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#include <error.h>
+#include <sys/socket.h>
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <poll.h>
+#include <linux/tcp.h>
+#include <assert.h>
+#include <openssl/pem.h>
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY    0x4000000
+#endif
+
+#ifndef min
+#define min(a, b)  ((a) < (b) ? (a) : (b))
+#endif
+
+#define FILE_SZ (1ULL << 35)
+static int cfg_family = AF_INET6;
+static socklen_t cfg_alen = sizeof(struct sockaddr_in6);
+static int cfg_port = 8787;
+
+static int rcvbuf; /* Default: autotuning.  Can be set with -r <integer> option */
+static int sndbuf; /* Default: autotuning.  Can be set with -w <integer> option */
+static int zflg; /* zero copy option. (MSG_ZEROCOPY for sender, mmap() for receiver */
+static int xflg; /* hash received data (simple xor) (-h option) */
+static int keepflag; /* -k option: receiver shall keep all received file in memory (no munmap() calls) */
+static int integrity; /* -i option: sender and receiver compute sha256 over the data.*/
+
+static size_t chunk_size  = 512*1024;
+
+static size_t map_align;
+
+unsigned long htotal;
+unsigned int digest_len;
+
+static inline void prefetch(const void *x)
+{
+#if defined(__x86_64__)
+	asm volatile("prefetcht0 %P0" : : "m" (*(const char *)x));
+#endif
+}
+
+void hash_zone(void *zone, unsigned int length)
+{
+	unsigned long temp = htotal;
+
+	while (length >= 8*sizeof(long)) {
+		prefetch(zone + 384);
+		temp ^= *(unsigned long *)zone;
+		temp ^= *(unsigned long *)(zone + sizeof(long));
+		temp ^= *(unsigned long *)(zone + 2*sizeof(long));
+		temp ^= *(unsigned long *)(zone + 3*sizeof(long));
+		temp ^= *(unsigned long *)(zone + 4*sizeof(long));
+		temp ^= *(unsigned long *)(zone + 5*sizeof(long));
+		temp ^= *(unsigned long *)(zone + 6*sizeof(long));
+		temp ^= *(unsigned long *)(zone + 7*sizeof(long));
+		zone += 8*sizeof(long);
+		length -= 8*sizeof(long);
+	}
+	while (length >= 1) {
+		temp ^= *(unsigned char *)zone;
+		zone += 1;
+		length--;
+	}
+	htotal = temp;
+}
+
+#define ALIGN_UP(x, align_to)	(((x) + ((align_to)-1)) & ~((align_to)-1))
+#define ALIGN_PTR_UP(p, ptr_align_to)	((typeof(p))ALIGN_UP((unsigned long)(p), ptr_align_to))
+
+
+static void *mmap_large_buffer(size_t need, size_t *allocated)
+{
+	void *buffer;
+	size_t sz;
+
+	/* Attempt to use huge pages if possible. */
+	sz = ALIGN_UP(need, map_align);
+	buffer = mmap(NULL, sz, PROT_READ | PROT_WRITE,
+		      MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, -1, 0);
+
+	if (buffer == (void *)-1) {
+		sz = need;
+		buffer = mmap(NULL, sz, PROT_READ | PROT_WRITE,
+			      MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE,
+			      -1, 0);
+		if (buffer != (void *)-1)
+			fprintf(stderr, "MAP_HUGETLB attempt failed, look at /sys/kernel/mm/hugepages for optimal performance\n");
+	}
+	*allocated = sz;
+	return buffer;
+}
+
+static uint32_t tcp_info_get_rcv_mss(int fd)
+{
+	socklen_t sz = sizeof(struct tcp_info);
+	struct tcp_info info;
+
+	if (getsockopt(fd, IPPROTO_TCP, TCP_INFO, &info, &sz)) {
+		fprintf(stderr, "Error fetching TCP_INFO\n");
+		return 0;
+	}
+
+	return info.tcpi_rcv_mss;
+}
+
+void *child_thread(void *arg)
+{
+	unsigned char digest[SHA256_DIGEST_LENGTH];
+	unsigned long total_mmap = 0, total = 0;
+	struct tcp_zerocopy_receive zc;
+	unsigned char *buffer = NULL;
+	unsigned long delta_usec;
+	EVP_MD_CTX *ctx = NULL;
+	int flags = MAP_SHARED;
+	struct timeval t0, t1;
+	void *raddr = NULL;
+	void *addr = NULL;
+	double throughput;
+	struct rusage ru;
+	size_t buffer_sz;
+	int lu, fd;
+
+	fd = (int)(unsigned long)arg;
+
+	gettimeofday(&t0, NULL);
+
+	fcntl(fd, F_SETFL, O_NDELAY);
+	buffer = mmap_large_buffer(chunk_size, &buffer_sz);
+	if (buffer == (void *)-1) {
+		perror("mmap");
+		goto error;
+	}
+	if (zflg) {
+		raddr = mmap(NULL, chunk_size + map_align, PROT_READ, flags, fd, 0);
+		if (raddr == (void *)-1) {
+			perror("mmap");
+			zflg = 0;
+		} else {
+			addr = ALIGN_PTR_UP(raddr, map_align);
+		}
+	}
+	if (integrity) {
+		ctx = EVP_MD_CTX_new();
+		if (!ctx) {
+			perror("cannot enable SHA computing");
+			goto error;
+		}
+		EVP_DigestInit_ex(ctx, EVP_sha256(), NULL);
+	}
+	while (1) {
+		struct pollfd pfd = { .fd = fd, .events = POLLIN, };
+		int sub;
+
+		poll(&pfd, 1, 10000);
+		if (zflg) {
+			socklen_t zc_len = sizeof(zc);
+			int res;
+
+			memset(&zc, 0, sizeof(zc));
+			zc.address = (__u64)((unsigned long)addr);
+			zc.length = min(chunk_size, FILE_SZ - total);
+
+			res = getsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE,
+					 &zc, &zc_len);
+			if (res == -1)
+				break;
+
+			if (zc.length) {
+				assert(zc.length <= chunk_size);
+				if (integrity)
+					EVP_DigestUpdate(ctx, addr, zc.length);
+				total_mmap += zc.length;
+				if (xflg)
+					hash_zone(addr, zc.length);
+				/* It is more efficient to unmap the pages right now,
+				 * instead of doing this in next TCP_ZEROCOPY_RECEIVE.
+				 */
+				madvise(addr, zc.length, MADV_DONTNEED);
+				total += zc.length;
+			}
+			if (zc.recv_skip_hint) {
+				assert(zc.recv_skip_hint <= chunk_size);
+				lu = read(fd, buffer, min(zc.recv_skip_hint,
+							  FILE_SZ - total));
+				if (lu > 0) {
+					if (integrity)
+						EVP_DigestUpdate(ctx, buffer, lu);
+					if (xflg)
+						hash_zone(buffer, lu);
+					total += lu;
+				}
+				if (lu == 0)
+					goto end;
+			}
+			continue;
+		}
+		sub = 0;
+		while (sub < chunk_size) {
+			lu = read(fd, buffer + sub, min(chunk_size - sub,
+							FILE_SZ - total));
+			if (lu == 0)
+				goto end;
+			if (lu < 0)
+				break;
+			if (integrity)
+				EVP_DigestUpdate(ctx, buffer + sub, lu);
+			if (xflg)
+				hash_zone(buffer + sub, lu);
+			total += lu;
+			sub += lu;
+		}
+	}
+end:
+	gettimeofday(&t1, NULL);
+	delta_usec = (t1.tv_sec - t0.tv_sec) * 1000000 + t1.tv_usec - t0.tv_usec;
+
+	if (integrity) {
+		fcntl(fd, F_SETFL, 0);
+		EVP_DigestFinal_ex(ctx, digest, &digest_len);
+		lu = read(fd, buffer, SHA256_DIGEST_LENGTH);
+		if (lu != SHA256_DIGEST_LENGTH)
+			perror("Error: Cannot read SHA256\n");
+
+		if (memcmp(digest, buffer,
+			   SHA256_DIGEST_LENGTH))
+			fprintf(stderr, "Error: SHA256 of the data is not right\n");
+		else
+			printf("\nSHA256 is correct\n");
+	}
+
+	throughput = 0;
+	if (delta_usec)
+		throughput = total * 8.0 / (double)delta_usec / 1000.0;
+	getrusage(RUSAGE_THREAD, &ru);
+	if (total > 1024*1024) {
+		unsigned long total_usec;
+		unsigned long mb = total >> 20;
+		total_usec = 1000000*ru.ru_utime.tv_sec + ru.ru_utime.tv_usec +
+			     1000000*ru.ru_stime.tv_sec + ru.ru_stime.tv_usec;
+		printf("received %lg MB (%lg %% mmap'ed) in %lg s, %lg Gbit\n"
+		       "  cpu usage user:%lg sys:%lg, %lg usec per MB, %lu c-switches, rcv_mss %u\n",
+				total / (1024.0 * 1024.0),
+				100.0*total_mmap/total,
+				(double)delta_usec / 1000000.0,
+				throughput,
+				(double)ru.ru_utime.tv_sec + (double)ru.ru_utime.tv_usec / 1000000.0,
+				(double)ru.ru_stime.tv_sec + (double)ru.ru_stime.tv_usec / 1000000.0,
+				(double)total_usec/mb,
+				ru.ru_nvcsw,
+				tcp_info_get_rcv_mss(fd));
+	}
+error:
+	munmap(buffer, buffer_sz);
+	close(fd);
+	if (zflg)
+		munmap(raddr, chunk_size + map_align);
+	pthread_exit(0);
+}
+
+static void apply_rcvsnd_buf(int fd)
+{
+	if (rcvbuf && setsockopt(fd, SOL_SOCKET,
+				 SO_RCVBUF, &rcvbuf, sizeof(rcvbuf)) == -1) {
+		perror("setsockopt SO_RCVBUF");
+	}
+
+	if (sndbuf && setsockopt(fd, SOL_SOCKET,
+				 SO_SNDBUF, &sndbuf, sizeof(sndbuf)) == -1) {
+		perror("setsockopt SO_SNDBUF");
+	}
+}
+
+
+static void setup_sockaddr(int domain, const char *str_addr,
+			   struct sockaddr_storage *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (domain) {
+	case PF_INET:
+		memset(addr4, 0, sizeof(*addr4));
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", str_addr);
+		break;
+	case PF_INET6:
+		memset(addr6, 0, sizeof(*addr6));
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (str_addr &&
+		    inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", str_addr);
+		break;
+	default:
+		error(1, 0, "illegal domain");
+	}
+}
+
+static void do_accept(int fdlisten)
+{
+	pthread_attr_t attr;
+	int rcvlowat;
+
+	pthread_attr_init(&attr);
+	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+	rcvlowat = chunk_size;
+	if (setsockopt(fdlisten, SOL_SOCKET, SO_RCVLOWAT,
+		       &rcvlowat, sizeof(rcvlowat)) == -1) {
+		perror("setsockopt SO_RCVLOWAT");
+	}
+
+	apply_rcvsnd_buf(fdlisten);
+
+	while (1) {
+		struct sockaddr_in addr;
+		socklen_t addrlen = sizeof(addr);
+		pthread_t th;
+		int fd, res;
+
+		fd = accept(fdlisten, (struct sockaddr *)&addr, &addrlen);
+		if (fd == -1) {
+			perror("accept");
+			continue;
+		}
+		res = pthread_create(&th, &attr, child_thread,
+				     (void *)(unsigned long)fd);
+		if (res) {
+			errno = res;
+			perror("pthread_create");
+			close(fd);
+		}
+	}
+}
+
+/* Each thread should reserve a big enough vma to avoid
+ * spinlock collisions in ptl locks.
+ * This size is 2MB on x86_64, and is exported in /proc/meminfo.
+ */
+static unsigned long default_huge_page_size(void)
+{
+	FILE *f = fopen("/proc/meminfo", "r");
+	unsigned long hps = 0;
+	size_t linelen = 0;
+	char *line = NULL;
+
+	if (!f)
+		return 0;
+	while (getline(&line, &linelen, f) > 0) {
+		if (sscanf(line, "Hugepagesize:       %lu kB", &hps) == 1) {
+			hps <<= 10;
+			break;
+		}
+	}
+	free(line);
+	fclose(f);
+	return hps;
+}
+
+static void randomize(void *target, size_t count)
+{
+	static int urandom = -1;
+	ssize_t got;
+
+	urandom = open("/dev/urandom", O_RDONLY);
+	if (urandom < 0) {
+		perror("open /dev/urandom");
+		exit(1);
+	}
+	got = read(urandom, target, count);
+	if (got != count) {
+		perror("read /dev/urandom");
+		exit(1);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	unsigned char digest[SHA256_DIGEST_LENGTH];
+	struct sockaddr_storage listenaddr, addr;
+	unsigned int max_pacing_rate = 0;
+	EVP_MD_CTX *ctx = NULL;
+	unsigned char *buffer;
+	uint64_t total = 0;
+	char *host = NULL;
+	int fd, c, on = 1;
+	size_t buffer_sz;
+	int sflg = 0;
+	int mss = 0;
+
+	while ((c = getopt(argc, argv, "46p:svr:w:H:zxkP:M:C:a:i")) != -1) {
+		switch (c) {
+		case '4':
+			cfg_family = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			break;
+		case '6':
+			cfg_family = PF_INET6;
+			cfg_alen = sizeof(struct sockaddr_in6);
+			break;
+		case 'p':
+			cfg_port = atoi(optarg);
+			break;
+		case 'H':
+			host = optarg;
+			break;
+		case 's': /* server : listen for incoming connections */
+			sflg++;
+			break;
+		case 'r':
+			rcvbuf = atoi(optarg);
+			break;
+		case 'w':
+			sndbuf = atoi(optarg);
+			break;
+		case 'z':
+			zflg = 1;
+			break;
+		case 'M':
+			mss = atoi(optarg);
+			break;
+		case 'x':
+			xflg = 1;
+			break;
+		case 'k':
+			keepflag = 1;
+			break;
+		case 'P':
+			max_pacing_rate = atoi(optarg) ;
+			break;
+		case 'C':
+			chunk_size = atol(optarg);
+			break;
+		case 'a':
+			map_align = atol(optarg);
+			break;
+		case 'i':
+			integrity = 1;
+			break;
+		default:
+			exit(1);
+		}
+	}
+	if (!map_align) {
+		map_align = default_huge_page_size();
+		/* if really /proc/meminfo is not helping,
+		 * we use the default x86_64 hugepagesize.
+		 */
+		if (!map_align)
+			map_align = 2*1024*1024;
+	}
+	if (sflg) {
+		int fdlisten = socket(cfg_family, SOCK_STREAM, 0);
+
+		if (fdlisten == -1) {
+			perror("socket");
+			exit(1);
+		}
+		apply_rcvsnd_buf(fdlisten);
+		setsockopt(fdlisten, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
+
+		setup_sockaddr(cfg_family, host, &listenaddr);
+
+		if (mss &&
+		    setsockopt(fdlisten, IPPROTO_TCP, TCP_MAXSEG,
+			       &mss, sizeof(mss)) == -1) {
+			perror("setsockopt TCP_MAXSEG");
+			exit(1);
+		}
+		if (bind(fdlisten, (const struct sockaddr *)&listenaddr, cfg_alen) == -1) {
+			perror("bind");
+			exit(1);
+		}
+		if (listen(fdlisten, 128) == -1) {
+			perror("listen");
+			exit(1);
+		}
+		do_accept(fdlisten);
+	}
+
+	buffer = mmap_large_buffer(chunk_size, &buffer_sz);
+	if (buffer == (unsigned char *)-1) {
+		perror("mmap");
+		exit(1);
+	}
+
+	fd = socket(cfg_family, SOCK_STREAM, 0);
+	if (fd == -1) {
+		perror("socket");
+		exit(1);
+	}
+	apply_rcvsnd_buf(fd);
+
+	setup_sockaddr(cfg_family, host, &addr);
+
+	if (mss &&
+	    setsockopt(fd, IPPROTO_TCP, TCP_MAXSEG, &mss, sizeof(mss)) == -1) {
+		perror("setsockopt TCP_MAXSEG");
+		exit(1);
+	}
+	if (connect(fd, (const struct sockaddr *)&addr, cfg_alen) == -1) {
+		perror("connect");
+		exit(1);
+	}
+	if (max_pacing_rate &&
+	    setsockopt(fd, SOL_SOCKET, SO_MAX_PACING_RATE,
+		       &max_pacing_rate, sizeof(max_pacing_rate)) == -1)
+		perror("setsockopt SO_MAX_PACING_RATE");
+
+	if (zflg && setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY,
+			       &on, sizeof(on)) == -1) {
+		perror("setsockopt SO_ZEROCOPY, (-z option disabled)");
+		zflg = 0;
+	}
+	if (integrity) {
+		randomize(buffer, buffer_sz);
+		ctx = EVP_MD_CTX_new();
+		if (!ctx) {
+			perror("cannot enable SHA computing");
+			exit(1);
+		}
+		EVP_DigestInit_ex(ctx, EVP_sha256(), NULL);
+	}
+	while (total < FILE_SZ) {
+		size_t offset = total % chunk_size;
+		int64_t wr = FILE_SZ - total;
+
+		if (wr > chunk_size - offset)
+			wr = chunk_size - offset;
+		/* Note : we just want to fill the pipe with random bytes */
+		wr = send(fd, buffer + offset,
+			  (size_t)wr, zflg ? MSG_ZEROCOPY : 0);
+		if (wr <= 0)
+			break;
+		if (integrity)
+			EVP_DigestUpdate(ctx, buffer + offset, wr);
+		total += wr;
+	}
+	if (integrity && total == FILE_SZ) {
+		EVP_DigestFinal_ex(ctx, digest, &digest_len);
+		send(fd, digest, (size_t)SHA256_DIGEST_LENGTH, 0);
+	}
+	close(fd);
+	munmap(buffer, buffer_sz);
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tcp_port_share.c b/tools/testing/selftests/net/tcp_port_share.c
new file mode 100644
index 000000000000..6146b62610df
--- /dev/null
+++ b/tools/testing/selftests/net/tcp_port_share.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+// Copyright (c) 2025 Cloudflare, Inc.
+
+/* Tests for TCP port sharing (bind bucket reuse). */
+
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <stdlib.h>
+
+#include "kselftest_harness.h"
+
+#define DST_PORT 30000
+#define SRC_PORT 40000
+
+struct sockaddr_inet {
+	union {
+		struct sockaddr_storage ss;
+		struct sockaddr_in6 v6;
+		struct sockaddr_in v4;
+		struct sockaddr sa;
+	};
+	socklen_t len;
+	char str[INET6_ADDRSTRLEN + __builtin_strlen("[]:65535") + 1];
+};
+
+const int one = 1;
+
+static int disconnect(int fd)
+{
+	return connect(fd, &(struct sockaddr){ AF_UNSPEC }, sizeof(struct sockaddr));
+}
+
+static int getsockname_port(int fd)
+{
+	struct sockaddr_inet addr = {};
+	int err;
+
+	addr.len = sizeof(addr);
+	err = getsockname(fd, &addr.sa, &addr.len);
+	if (err)
+		return -1;
+
+	switch (addr.sa.sa_family) {
+	case AF_INET:
+		return ntohs(addr.v4.sin_port);
+	case AF_INET6:
+		return ntohs(addr.v6.sin6_port);
+	default:
+		errno = EAFNOSUPPORT;
+		return -1;
+	}
+}
+
+static void make_inet_addr(int af, const char *ip, __u16 port,
+			   struct sockaddr_inet *addr)
+{
+	const char *fmt = "";
+
+	memset(addr, 0, sizeof(*addr));
+
+	switch (af) {
+	case AF_INET:
+		addr->len = sizeof(addr->v4);
+		addr->v4.sin_family = af;
+		addr->v4.sin_port = htons(port);
+		inet_pton(af, ip, &addr->v4.sin_addr);
+		fmt = "%s:%hu";
+		break;
+	case AF_INET6:
+		addr->len = sizeof(addr->v6);
+		addr->v6.sin6_family = af;
+		addr->v6.sin6_port = htons(port);
+		inet_pton(af, ip, &addr->v6.sin6_addr);
+		fmt = "[%s]:%hu";
+		break;
+	}
+
+	snprintf(addr->str, sizeof(addr->str), fmt, ip, port);
+}
+
+FIXTURE(tcp_port_share) {};
+
+FIXTURE_VARIANT(tcp_port_share) {
+	int domain;
+	/* IP to listen on and connect to */
+	const char *dst_ip;
+	/* Primary IP to connect from */
+	const char *src1_ip;
+	/* Secondary IP to connect from */
+	const char *src2_ip;
+	/* IP to bind to in order to block the source port */
+	const char *bind_ip;
+};
+
+FIXTURE_VARIANT_ADD(tcp_port_share, ipv4) {
+	.domain = AF_INET,
+	.dst_ip = "127.0.0.1",
+	.src1_ip = "127.1.1.1",
+	.src2_ip = "127.2.2.2",
+	.bind_ip = "127.3.3.3",
+};
+
+FIXTURE_VARIANT_ADD(tcp_port_share, ipv6) {
+	.domain = AF_INET6,
+	.dst_ip = "::1",
+	.src1_ip = "2001:db8::1",
+	.src2_ip = "2001:db8::2",
+	.bind_ip = "2001:db8::3",
+};
+
+FIXTURE_SETUP(tcp_port_share)
+{
+	int sc;
+
+	ASSERT_EQ(unshare(CLONE_NEWNET), 0);
+	ASSERT_EQ(system("ip link set dev lo up"), 0);
+	ASSERT_EQ(system("ip addr add dev lo 2001:db8::1/32 nodad"), 0);
+	ASSERT_EQ(system("ip addr add dev lo 2001:db8::2/32 nodad"), 0);
+	ASSERT_EQ(system("ip addr add dev lo 2001:db8::3/32 nodad"), 0);
+
+	sc = open("/proc/sys/net/ipv4/ip_local_port_range", O_WRONLY);
+	ASSERT_GE(sc, 0);
+	ASSERT_GT(dprintf(sc, "%hu %hu\n", SRC_PORT, SRC_PORT), 0);
+	ASSERT_EQ(close(sc), 0);
+}
+
+FIXTURE_TEARDOWN(tcp_port_share) {}
+
+/* Verify that an ephemeral port becomes available again after the socket
+ * bound to it and blocking it from reuse is closed.
+ */
+TEST_F(tcp_port_share, can_reuse_port_after_bind_and_close)
+{
+	const typeof(variant) v = variant;
+	struct sockaddr_inet addr;
+	int c1, c2, ln, pb;
+
+	/* Listen on <dst_ip>:<DST_PORT> */
+	ln = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(ln, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(ln, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	ASSERT_EQ(bind(ln, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+	ASSERT_EQ(listen(ln, 2), 0);
+
+	/* Connect from <src1_ip>:<SRC_PORT> */
+	c1 = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(c1, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(c1, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->src1_ip, 0, &addr);
+	ASSERT_EQ(bind(c1, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	ASSERT_EQ(connect(c1, &addr.sa, addr.len), 0) TH_LOG("connect(%s): %m", addr.str);
+	ASSERT_EQ(getsockname_port(c1), SRC_PORT);
+
+	/* Bind to <bind_ip>:<SRC_PORT>. Block the port from reuse. */
+	pb = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(pb, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(pb, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->bind_ip, SRC_PORT, &addr);
+	ASSERT_EQ(bind(pb, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	/* Try to connect from <src2_ip>:<SRC_PORT>. Expect failure. */
+	c2 = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(c2, 0) TH_LOG("socket");
+	ASSERT_EQ(setsockopt(c2, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->src2_ip, 0, &addr);
+	ASSERT_EQ(bind(c2, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	ASSERT_EQ(connect(c2, &addr.sa, addr.len), -1) TH_LOG("connect(%s)", addr.str);
+	ASSERT_EQ(errno, EADDRNOTAVAIL) TH_LOG("%m");
+
+	/* Unbind from <bind_ip>:<SRC_PORT>. Unblock the port for reuse. */
+	ASSERT_EQ(close(pb), 0);
+
+	/* Connect again from <src2_ip>:<SRC_PORT> */
+	EXPECT_EQ(connect(c2, &addr.sa, addr.len), 0) TH_LOG("connect(%s): %m", addr.str);
+	EXPECT_EQ(getsockname_port(c2), SRC_PORT);
+
+	ASSERT_EQ(close(c2), 0);
+	ASSERT_EQ(close(c1), 0);
+	ASSERT_EQ(close(ln), 0);
+}
+
+/* Verify that a socket auto-bound during connect() blocks port reuse after
+ * disconnect (connect(AF_UNSPEC)) followed by an explicit port bind().
+ */
+TEST_F(tcp_port_share, port_block_after_disconnect)
+{
+	const typeof(variant) v = variant;
+	struct sockaddr_inet addr;
+	int c1, c2, ln, pb;
+
+	/* Listen on <dst_ip>:<DST_PORT> */
+	ln = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(ln, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(ln, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	ASSERT_EQ(bind(ln, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+	ASSERT_EQ(listen(ln, 2), 0);
+
+	/* Connect from <src1_ip>:<SRC_PORT> */
+	c1 = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(c1, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(c1, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->src1_ip, 0, &addr);
+	ASSERT_EQ(bind(c1, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	ASSERT_EQ(connect(c1, &addr.sa, addr.len), 0) TH_LOG("connect(%s): %m", addr.str);
+	ASSERT_EQ(getsockname_port(c1), SRC_PORT);
+
+	/* Disconnect the socket and bind it to <bind_ip>:<SRC_PORT> to block the port */
+	ASSERT_EQ(disconnect(c1), 0) TH_LOG("disconnect: %m");
+	ASSERT_EQ(setsockopt(c1, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->bind_ip, SRC_PORT, &addr);
+	ASSERT_EQ(bind(c1, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	/* Trigger port-addr bucket state update with another bind() and close() */
+	pb = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(pb, 0) TH_LOG("socket(): %m");
+	ASSERT_EQ(setsockopt(pb, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->bind_ip, SRC_PORT, &addr);
+	ASSERT_EQ(bind(pb, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	ASSERT_EQ(close(pb), 0);
+
+	/* Connect from <src2_ip>:<SRC_PORT>. Expect failure. */
+	c2 = socket(v->domain, SOCK_STREAM, 0);
+	ASSERT_GE(c2, 0) TH_LOG("socket: %m");
+	ASSERT_EQ(setsockopt(c2, SOL_IP, IP_BIND_ADDRESS_NO_PORT, &one, sizeof(one)), 0);
+
+	make_inet_addr(v->domain, v->src2_ip, 0, &addr);
+	ASSERT_EQ(bind(c2, &addr.sa, addr.len), 0) TH_LOG("bind(%s): %m", addr.str);
+
+	make_inet_addr(v->domain, v->dst_ip, DST_PORT, &addr);
+	EXPECT_EQ(connect(c2, &addr.sa, addr.len), -1) TH_LOG("connect(%s)", addr.str);
+	EXPECT_EQ(errno, EADDRNOTAVAIL) TH_LOG("%m");
+
+	ASSERT_EQ(close(c2), 0);
+	ASSERT_EQ(close(c1), 0);
+	ASSERT_EQ(close(ln), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/test_bpf.sh b/tools/testing/selftests/net/test_bpf.sh
index 8b29796d46aa..65677909c574 100755
--- a/tools/testing/selftests/net/test_bpf.sh
+++ b/tools/testing/selftests/net/test_bpf.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs bpf test using test_bpf kernel module
 
 if /sbin/modprobe -q test_bpf ; then
diff --git a/tools/testing/selftests/net/test_bridge_backup_port.sh b/tools/testing/selftests/net/test_bridge_backup_port.sh
new file mode 100755
index 000000000000..2a7224fe74f2
--- /dev/null
+++ b/tools/testing/selftests/net/test_bridge_backup_port.sh
@@ -0,0 +1,798 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking bridge backup port and backup nexthop ID
+# functionality. The topology consists of two bridge (VTEPs) connected using
+# VXLAN. The test checks that when the switch port (swp1) is down, traffic is
+# redirected to the VXLAN port (vx0). When a backup nexthop ID is configured,
+# the test checks that traffic is redirected with the correct nexthop
+# information.
+#
+# +------------------------------------+ +------------------------------------+
+# |    + swp1                   + vx0  | |    + swp1                   + vx0  |
+# |    |                        |      | |    |                        |      |
+# |    |           br0          |      | |    |                        |      |
+# |    +------------+-----------+      | |    +------------+-----------+      |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |                 +                  | |                 +                  |
+# |                br0                 | |                br0                 |
+# |                 +                  | |                 +                  |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |                 +                  | |                 +                  |
+# |              br0.10                | |              br0.10                |
+# |           192.0.2.65/28            | |            192.0.2.66/28           |
+# |                                    | |                                    |
+# |                                    | |                                    |
+# |                 192.0.2.33         | |                 192.0.2.34         |
+# |                 + lo               | |                 + lo               |
+# |                                    | |                                    |
+# |                                    | |                                    |
+# |                   192.0.2.49/28    | |    192.0.2.50/28                   |
+# |                           veth0 +-------+ veth0                           |
+# |                                    | |                                    |
+# | sw1                                | | sw2                                |
+# +------------------------------------+ +------------------------------------+
+
+source lib.sh
+ret=0
+
+# All tests in this script. Can be overridden with -t option.
+TESTS="
+	backup_port
+	backup_nhid
+	backup_nhid_invalid
+	backup_nhid_ping
+	backup_nhid_torture
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+PING_TIMEOUT=5
+
+################################################################################
+# Utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+tc_check_packets()
+{
+	local ns=$1; shift
+	local id=$1; shift
+	local handle=$1; shift
+	local count=$1; shift
+	local pkts
+
+	sleep 0.1
+	pkts=$(tc -n $ns -j -s filter show $id \
+		| jq ".[] | select(.options.handle == $handle) | \
+		.options.actions[0].stats.packets")
+	[[ $pkts == $count ]]
+}
+
+bridge_link_check()
+{
+	local ns=$1; shift
+	local dev=$1; shift
+	local state=$1; shift
+
+	bridge -n $ns -d -j link show dev $dev | \
+		jq -e ".[][\"state\"] == \"$state\"" &> /dev/null
+}
+
+################################################################################
+# Setup
+
+setup_topo_ns()
+{
+	local ns=$1; shift
+
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.accept_dad=0
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+setup_topo()
+{
+	local ns
+
+	setup_ns sw1 sw2
+	for ns in $sw1 $sw2; do
+		setup_topo_ns $ns
+	done
+
+	ip link add name veth0 type veth peer name veth1
+	ip link set dev veth0 netns $sw1 name veth0
+	ip link set dev veth1 netns $sw2 name veth0
+}
+
+setup_sw_common()
+{
+	local ns=$1; shift
+	local local_addr=$1; shift
+	local remote_addr=$1; shift
+	local veth_addr=$1; shift
+	local gw_addr=$1; shift
+	local br_addr=$1; shift
+
+	ip -n $ns address add $local_addr/32 dev lo
+
+	ip -n $ns link set dev veth0 up
+	ip -n $ns address add $veth_addr/28 dev veth0
+	ip -n $ns route add default via $gw_addr
+
+	ip -n $ns link add name br0 up type bridge vlan_filtering 1 \
+		vlan_default_pvid 0 mcast_snooping 0
+
+	ip -n $ns link add link br0 name br0.10 up type vlan id 10
+	bridge -n $ns vlan add vid 10 dev br0 self
+	ip -n $ns address add $br_addr/28 dev br0.10
+
+	ip -n $ns link add name swp1 up type dummy
+	ip -n $ns link set dev swp1 master br0
+	bridge -n $ns vlan add vid 10 dev swp1 untagged
+
+	ip -n $ns link add name vx0 up master br0 type vxlan \
+		local $local_addr dstport 4789 nolearning external
+	bridge -n $ns link set dev vx0 vlan_tunnel on learning off
+
+	bridge -n $ns vlan add vid 10 dev vx0
+	bridge -n $ns vlan add vid 10 dev vx0 tunnel_info id 10010
+}
+
+setup_sw1()
+{
+	local ns=$sw1
+	local local_addr=192.0.2.33
+	local remote_addr=192.0.2.34
+	local veth_addr=192.0.2.49
+	local gw_addr=192.0.2.50
+	local br_addr=192.0.2.65
+
+	setup_sw_common $ns $local_addr $remote_addr $veth_addr $gw_addr \
+		$br_addr
+}
+
+setup_sw2()
+{
+	local ns=$sw2
+	local local_addr=192.0.2.34
+	local remote_addr=192.0.2.33
+	local veth_addr=192.0.2.50
+	local gw_addr=192.0.2.49
+	local br_addr=192.0.2.66
+
+	setup_sw_common $ns $local_addr $remote_addr $veth_addr $gw_addr \
+		$br_addr
+}
+
+setup()
+{
+	set -e
+
+	setup_topo
+	setup_sw1
+	setup_sw2
+
+	sleep 5
+
+	set +e
+}
+
+cleanup()
+{
+	cleanup_ns $sw1 $sw2
+}
+
+################################################################################
+# Tests
+
+backup_port()
+{
+	local dmac=00:11:22:33:44:55
+	local smac=00:aa:bb:cc:dd:ee
+
+	echo
+	echo "Backup port"
+	echo "-----------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev swp1 clsact"
+	run_cmd "tc -n $sw1 filter replace dev swp1 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "bridge -n $sw1 fdb replace $dmac dev swp1 master static vlan 10"
+
+	# Initial state - check that packets are forwarded out of swp1 when it
+	# has a carrier and not forwarded out of any port when it does not have
+	# a carrier.
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 1
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 0
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 1
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 0
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier on"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 forwarding
+	log_test $? 0 "swp1 carrier on"
+
+	# Configure vx0 as the backup port of swp1 and check that packets are
+	# forwarded out of swp1 when it has a carrier and out of vx0 when swp1
+	# does not have a carrier.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_port vx0\""
+	log_test $? 0 "vx0 configured as backup port of swp1"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 2
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 0
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 2
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "Forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier on"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 forwarding
+	log_test $? 0 "swp1 carrier on"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 3
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "No forwarding out of vx0"
+
+	# Check that packets are forwarded out of vx0 when swp1 is
+	# administratively down and out of swp1 when it is administratively up
+	# again.
+	run_cmd "ip -n $sw1 link set dev swp1 down"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 administratively down"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 3
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "Forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 up"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 forwarding
+	log_test $? 0 "swp1 administratively up"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 4
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "No forwarding out of vx0"
+
+	# Remove vx0 as the backup port of swp1 and check that packets are no
+	# longer forwarded out of vx0 when swp1 does not have a carrier.
+	run_cmd "bridge -n $sw1 link set dev swp1 nobackup_port"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_port vx0\""
+	log_test $? 1 "vx0 not configured as backup port of swp1"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 5
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 5
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "No forwarding out of vx0"
+}
+
+backup_nhid()
+{
+	local dmac=00:11:22:33:44:55
+	local smac=00:aa:bb:cc:dd:ee
+
+	echo
+	echo "Backup nexthop ID"
+	echo "-----------------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev swp1 clsact"
+	run_cmd "tc -n $sw1 filter replace dev swp1 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "ip -n $sw1 nexthop replace id 1 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 2 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 10 group 1/2 fdb"
+
+	run_cmd "bridge -n $sw1 fdb replace $dmac dev swp1 master static vlan 10"
+	run_cmd "bridge -n $sw1 fdb replace $dmac dev vx0 self static dst 192.0.2.36 src_vni 10010"
+
+	run_cmd "ip -n $sw2 address replace 192.0.2.36/32 dev lo"
+
+	# The first filter matches on packets forwarded using the backup
+	# nexthop ID and the second filter matches on packets forwarded using a
+	# regular VXLAN FDB entry.
+	run_cmd "tc -n $sw2 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw2 filter replace dev vx0 ingress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac enc_key_id 10010 enc_dst_ip 192.0.2.34 action pass"
+	run_cmd "tc -n $sw2 filter replace dev vx0 ingress pref 1 handle 102 proto ip flower src_mac $smac dst_mac $dmac enc_key_id 10010 enc_dst_ip 192.0.2.36 action pass"
+
+	# Configure vx0 as the backup port of swp1 and check that packets are
+	# forwarded out of swp1 when it has a carrier and out of vx0 when swp1
+	# does not have a carrier. When packets are forwarded out of vx0, check
+	# that they are forwarded by the VXLAN FDB entry.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_port vx0\""
+	log_test $? 0 "vx0 configured as backup port of swp1"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 1
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 0
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 1
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 0
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	tc_check_packets $sw2 "dev vx0 ingress" 102 1
+	log_test $? 0 "Forwarding using VXLAN FDB entry"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier on"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 forwarding
+	log_test $? 0 "swp1 carrier on"
+
+	# Configure nexthop ID 10 as the backup nexthop ID of swp1 and check
+	# that when packets are forwarded out of vx0, they are forwarded using
+	# the backup nexthop ID.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 10"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 10\""
+	log_test $? 0 "nexthop ID 10 configured as backup nexthop ID of swp1"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 2
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "No forwarding out of vx0"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 2
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "Forwarding using backup nexthop ID"
+	tc_check_packets $sw2 "dev vx0 ingress" 102 1
+	log_test $? 0 "No forwarding using VXLAN FDB entry"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier on"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 forwarding
+	log_test $? 0 "swp1 carrier on"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 3
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "No forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	tc_check_packets $sw2 "dev vx0 ingress" 102 1
+	log_test $? 0 "No forwarding using VXLAN FDB entry"
+
+	# Reset the backup nexthop ID to 0 and check that packets are no longer
+	# forwarded using the backup nexthop ID when swp1 does not have a
+	# carrier and are instead forwarded by the VXLAN FDB.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 0"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid\""
+	log_test $? 1 "No backup nexthop ID configured for swp1"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 4
+	log_test $? 0 "Forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "No forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	tc_check_packets $sw2 "dev vx0 ingress" 102 1
+	log_test $? 0 "No forwarding using VXLAN FDB entry"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 4
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	tc_check_packets $sw2 "dev vx0 ingress" 102 2
+	log_test $? 0 "Forwarding using VXLAN FDB entry"
+}
+
+backup_nhid_invalid()
+{
+	local dmac=00:11:22:33:44:55
+	local smac=00:aa:bb:cc:dd:ee
+	local tx_drop
+
+	echo
+	echo "Backup nexthop ID - invalid IDs"
+	echo "-------------------------------"
+
+	# Check that when traffic is redirected with an invalid nexthop ID, it
+	# is forwarded out of the VXLAN port, but dropped by the VXLAN driver
+	# and does not crash the host.
+
+	run_cmd "tc -n $sw1 qdisc replace dev swp1 clsact"
+	run_cmd "tc -n $sw1 filter replace dev swp1 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac action pass"
+	# Drop all other Tx traffic to avoid changes to Tx drop counter.
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 2 handle 102 proto all matchall action drop"
+
+	tx_drop=$(ip -n $sw1 -s -j link show dev vx0 | jq '.[]["stats64"]["tx"]["dropped"]')
+
+	run_cmd "ip -n $sw1 nexthop replace id 1 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 2 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 10 group 1/2 fdb"
+
+	run_cmd "bridge -n $sw1 fdb replace $dmac dev swp1 master static vlan 10"
+
+	run_cmd "tc -n $sw2 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw2 filter replace dev vx0 ingress pref 1 handle 101 proto ip flower src_mac $smac dst_mac $dmac enc_key_id 10010 enc_dst_ip 192.0.2.34 action pass"
+
+	# First, check that redirection works.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_port vx0\""
+	log_test $? 0 "vx0 configured as backup port of swp1"
+
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 10"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 10\""
+	log_test $? 0 "Valid nexthop as backup nexthop"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	log_test $? 0 "swp1 carrier off"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 0
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "Forwarding using backup nexthop ID"
+	run_cmd "ip -n $sw1 -s -j link show dev vx0 | jq -e '.[][\"stats64\"][\"tx\"][\"dropped\"] == $tx_drop'"
+	log_test $? 0 "No Tx drop increase"
+
+	# Use a non-existent nexthop ID.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 20"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 20\""
+	log_test $? 0 "Non-existent nexthop as backup nexthop"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 0
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	run_cmd "ip -n $sw1 -s -j link show dev vx0 | jq -e '.[][\"stats64\"][\"tx\"][\"dropped\"] == $((tx_drop + 1))'"
+	log_test $? 0 "Tx drop increased"
+
+	# Use a blckhole nexthop.
+	run_cmd "ip -n $sw1 nexthop replace id 30 blackhole"
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 30"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 30\""
+	log_test $? 0 "Blackhole nexthop as backup nexthop"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 0
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	run_cmd "ip -n $sw1 -s -j link show dev vx0 | jq -e '.[][\"stats64\"][\"tx\"][\"dropped\"] == $((tx_drop + 2))'"
+	log_test $? 0 "Tx drop increased"
+
+	# Non-group FDB nexthop.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 1"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 1\""
+	log_test $? 0 "Non-group FDB nexthop as backup nexthop"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 0
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 4
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	run_cmd "ip -n $sw1 -s -j link show dev vx0 | jq -e '.[][\"stats64\"][\"tx\"][\"dropped\"] == $((tx_drop + 3))'"
+	log_test $? 0 "Tx drop increased"
+
+	# IPv6 address family nexthop.
+	run_cmd "ip -n $sw1 nexthop replace id 100 via 2001:db8:100::1 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 200 via 2001:db8:100::1 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 300 group 100/200 fdb"
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 300"
+	run_cmd "bridge -n $sw1 -d link show dev swp1 | grep \"backup_nhid 300\""
+	log_test $? 0 "IPv6 address family nexthop as backup nexthop"
+
+	run_cmd "ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 1"
+	tc_check_packets $sw1 "dev swp1 egress" 101 0
+	log_test $? 0 "No forwarding out of swp1"
+	tc_check_packets $sw1 "dev vx0 egress" 101 5
+	log_test $? 0 "Forwarding out of vx0"
+	tc_check_packets $sw2 "dev vx0 ingress" 101 1
+	log_test $? 0 "No forwarding using backup nexthop ID"
+	run_cmd "ip -n $sw1 -s -j link show dev vx0 | jq -e '.[][\"stats64\"][\"tx\"][\"dropped\"] == $((tx_drop + 4))'"
+	log_test $? 0 "Tx drop increased"
+}
+
+backup_nhid_ping()
+{
+	local sw1_mac
+	local sw2_mac
+
+	echo
+	echo "Backup nexthop ID - ping"
+	echo "------------------------"
+
+	# Test bidirectional traffic when traffic is redirected in both VTEPs.
+	sw1_mac=$(ip -n $sw1 -j -p link show br0.10 | jq -r '.[]["address"]')
+	sw2_mac=$(ip -n $sw2 -j -p link show br0.10 | jq -r '.[]["address"]')
+
+	run_cmd "bridge -n $sw1 fdb replace $sw2_mac dev swp1 master static vlan 10"
+	run_cmd "bridge -n $sw2 fdb replace $sw1_mac dev swp1 master static vlan 10"
+
+	run_cmd "ip -n $sw1 neigh replace 192.0.2.66 lladdr $sw2_mac nud perm dev br0.10"
+	run_cmd "ip -n $sw2 neigh replace 192.0.2.65 lladdr $sw1_mac nud perm dev br0.10"
+
+	run_cmd "ip -n $sw1 nexthop replace id 1 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw2 nexthop replace id 1 via 192.0.2.33 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 10 group 1 fdb"
+	run_cmd "ip -n $sw2 nexthop replace id 10 group 1 fdb"
+
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw2 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 10"
+	run_cmd "bridge -n $sw2 link set dev swp1 backup_nhid 10"
+
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw1 swp1 disabled
+	run_cmd "ip -n $sw2 link set dev swp1 carrier off"
+	busywait $BUSYWAIT_TIMEOUT bridge_link_check $sw2 swp1 disabled
+
+	run_cmd "ip netns exec $sw1 ping -i 0.1 -c 10 -w $PING_TIMEOUT 192.0.2.66"
+	log_test $? 0 "Ping with backup nexthop ID"
+
+	# Reset the backup nexthop ID to 0 and check that ping fails.
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 0"
+	run_cmd "bridge -n $sw2 link set dev swp1 backup_nhid 0"
+
+	run_cmd "ip netns exec $sw1 ping -i 0.1 -c 10 -w $PING_TIMEOUT 192.0.2.66"
+	log_test $? 1 "Ping after disabling backup nexthop ID"
+}
+
+backup_nhid_add_del_loop()
+{
+	while true; do
+		ip -n $sw1 nexthop del id 10
+		ip -n $sw1 nexthop replace id 10 group 1/2 fdb
+	done >/dev/null 2>&1
+}
+
+backup_nhid_torture()
+{
+	local dmac=00:11:22:33:44:55
+	local smac=00:aa:bb:cc:dd:ee
+	local pid1
+	local pid2
+	local pid3
+
+	echo
+	echo "Backup nexthop ID - torture test"
+	echo "--------------------------------"
+
+	# Continuously send traffic through the backup nexthop while adding and
+	# deleting the group. The test is considered successful if nothing
+	# crashed.
+
+	run_cmd "ip -n $sw1 nexthop replace id 1 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 2 via 192.0.2.34 fdb"
+	run_cmd "ip -n $sw1 nexthop replace id 10 group 1/2 fdb"
+
+	run_cmd "bridge -n $sw1 fdb replace $dmac dev swp1 master static vlan 10"
+
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_port vx0"
+	run_cmd "bridge -n $sw1 link set dev swp1 backup_nhid 10"
+	run_cmd "ip -n $sw1 link set dev swp1 carrier off"
+
+	backup_nhid_add_del_loop &
+	pid1=$!
+	ip netns exec $sw1 mausezahn br0.10 -a $smac -b $dmac -A 198.51.100.1 -B 198.51.100.2 -t ip -p 100 -q -c 0 &
+	pid2=$!
+
+	sleep 30
+	kill -9 $pid1 $pid2
+	wait $pid1 $pid2 2>/dev/null
+
+	log_test 0 0 "Torture test"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          Verbose mode (show commands and output)
+        -w          Timeout for ping
+EOF
+}
+
+################################################################################
+# Main
+
+trap cleanup EXIT
+
+while getopts ":t:pPvhw:" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		w) PING_TIMEOUT=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# Make sure we don't pause twice.
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v bridge)" ]; then
+	echo "SKIP: Could not run test without bridge tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tc)" ]; then
+	echo "SKIP: Could not run test without tc tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+	echo "SKIP: Could not run test without jq tool"
+	exit $ksft_skip
+fi
+
+bridge link help 2>&1 | grep -q "backup_nhid"
+if [ $? -ne 0 ]; then
+   echo "SKIP: iproute2 bridge too old, missing backup nexthop ID support"
+   exit $ksft_skip
+fi
+
+# Start clean.
+cleanup
+
+for t in $TESTS
+do
+	setup; $t; cleanup;
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/test_bridge_neigh_suppress.sh b/tools/testing/selftests/net/test_bridge_neigh_suppress.sh
new file mode 100755
index 000000000000..9067197c9055
--- /dev/null
+++ b/tools/testing/selftests/net/test_bridge_neigh_suppress.sh
@@ -0,0 +1,972 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking bridge neighbor suppression functionality. The
+# topology consists of two bridges (VTEPs) connected using VXLAN. A single
+# host is connected to each bridge over multiple VLANs. The test checks that
+# ARP/NS messages from the first host are suppressed on the VXLAN port when
+# should.
+#
+# +-----------------------+              +------------------------+
+# | h1                    |              | h2                     |
+# |                       |              |                        |
+# | + eth0.10             |              | + eth0.10              |
+# | | 192.0.2.1/28        |              | | 192.0.2.2/28         |
+# | | 2001:db8:1::1/64    |              | | 2001:db8:1::2/64     |
+# | |                     |              | |                      |
+# | |  + eth0.20          |              | |  + eth0.20           |
+# | \  | 192.0.2.17/28    |              | \  | 192.0.2.18/28     |
+# |  \ | 2001:db8:2::1/64 |              |  \ | 2001:db8:2::2/64  |
+# |   \|                  |              |   \|                   |
+# |    + eth0             |              |    + eth0              |
+# +----|------------------+              +----|-------------------+
+#      |                                      |
+#      |                                      |
+# +----|-------------------------------+ +----|-------------------------------+
+# |    + swp1                   + vx0  | |    + swp1                   + vx0  |
+# |    |                        |      | |    |                        |      |
+# |    |           br0          |      | |    |                        |      |
+# |    +------------+-----------+      | |    +------------+-----------+      |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |             +---+---+              | |             +---+---+              |
+# |             |       |              | |             |       |              |
+# |             |       |              | |             |       |              |
+# |             +       +              | |             +       +              |
+# |          br0.10  br0.20            | |          br0.10  br0.20            |
+# |                                    | |                                    |
+# |                 192.0.2.33         | |                 192.0.2.34         |
+# |                 + lo               | |                 + lo               |
+# |                                    | |                                    |
+# |                                    | |                                    |
+# |                   192.0.2.49/28    | |    192.0.2.50/28                   |
+# |                           veth0 +-------+ veth0                           |
+# |                                    | |                                    |
+# | sw1                                | | sw2                                |
+# +------------------------------------+ +------------------------------------+
+
+source lib.sh
+ret=0
+
+# All tests in this script. Can be overridden with -t option.
+TESTS="
+	neigh_suppress_arp
+	neigh_suppress_uc_arp
+	neigh_suppress_ns
+	neigh_suppress_uc_ns
+	neigh_vlan_suppress_arp
+	neigh_vlan_suppress_ns
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+################################################################################
+# Utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+tc_check_packets()
+{
+	local ns=$1; shift
+	local id=$1; shift
+	local handle=$1; shift
+	local count=$1; shift
+	local pkts
+
+	sleep 0.1
+	pkts=$(tc -n $ns -j -s filter show $id \
+		| jq ".[] | select(.options.handle == $handle) | \
+		.options.actions[0].stats.packets")
+	[[ $pkts == $count ]]
+}
+
+################################################################################
+# Setup
+
+setup_topo_ns()
+{
+	local ns=$1; shift
+
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.accept_dad=0
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+setup_topo()
+{
+	local ns
+
+	setup_ns h1 h2 sw1 sw2
+	for ns in $h1 $h2 $sw1 $sw2; do
+		setup_topo_ns $ns
+	done
+
+	ip -n $h1 link add name eth0 type veth peer name swp1 netns $sw1
+	ip -n $sw1 link add name veth0 type veth peer name veth0 netns $sw2
+	ip -n $h2 link add name eth0 type veth peer name swp1 netns $sw2
+}
+
+setup_host_common()
+{
+	local ns=$1; shift
+	local v4addr1=$1; shift
+	local v4addr2=$1; shift
+	local v6addr1=$1; shift
+	local v6addr2=$1; shift
+
+	ip -n $ns link set dev eth0 up
+	ip -n $ns link add link eth0 name eth0.10 up type vlan id 10
+	ip -n $ns link add link eth0 name eth0.20 up type vlan id 20
+
+	ip -n $ns address add $v4addr1 dev eth0.10
+	ip -n $ns address add $v4addr2 dev eth0.20
+	ip -n $ns address add $v6addr1 dev eth0.10
+	ip -n $ns address add $v6addr2 dev eth0.20
+}
+
+setup_h1()
+{
+	local ns=$h1
+	local v4addr1=192.0.2.1/28
+	local v4addr2=192.0.2.17/28
+	local v6addr1=2001:db8:1::1/64
+	local v6addr2=2001:db8:2::1/64
+
+	setup_host_common $ns $v4addr1 $v4addr2 $v6addr1 $v6addr2
+}
+
+setup_h2()
+{
+	local ns=$h2
+	local v4addr1=192.0.2.2/28
+	local v4addr2=192.0.2.18/28
+	local v6addr1=2001:db8:1::2/64
+	local v6addr2=2001:db8:2::2/64
+
+	setup_host_common $ns $v4addr1 $v4addr2 $v6addr1 $v6addr2
+}
+
+setup_sw_common()
+{
+	local ns=$1; shift
+	local local_addr=$1; shift
+	local remote_addr=$1; shift
+	local veth_addr=$1; shift
+	local gw_addr=$1; shift
+
+	ip -n $ns address add $local_addr/32 dev lo
+
+	ip -n $ns link set dev veth0 up
+	ip -n $ns address add $veth_addr/28 dev veth0
+	ip -n $ns route add default via $gw_addr
+
+	ip -n $ns link add name br0 up type bridge vlan_filtering 1 \
+		vlan_default_pvid 0 mcast_snooping 0
+
+	ip -n $ns link add link br0 name br0.10 up type vlan id 10
+	bridge -n $ns vlan add vid 10 dev br0 self
+
+	ip -n $ns link add link br0 name br0.20 up type vlan id 20
+	bridge -n $ns vlan add vid 20 dev br0 self
+
+	ip -n $ns link set dev swp1 up master br0
+	bridge -n $ns vlan add vid 10 dev swp1
+	bridge -n $ns vlan add vid 20 dev swp1
+
+	ip -n $ns link add name vx0 up master br0 type vxlan \
+		local $local_addr dstport 4789 nolearning external
+	bridge -n $ns fdb add 00:00:00:00:00:00 dev vx0 self static \
+		dst $remote_addr src_vni 10010
+	bridge -n $ns fdb add 00:00:00:00:00:00 dev vx0 self static \
+		dst $remote_addr src_vni 10020
+	bridge -n $ns link set dev vx0 vlan_tunnel on learning off
+
+	bridge -n $ns vlan add vid 10 dev vx0
+	bridge -n $ns vlan add vid 10 dev vx0 tunnel_info id 10010
+
+	bridge -n $ns vlan add vid 20 dev vx0
+	bridge -n $ns vlan add vid 20 dev vx0 tunnel_info id 10020
+}
+
+setup_sw1()
+{
+	local ns=$sw1
+	local local_addr=192.0.2.33
+	local remote_addr=192.0.2.34
+	local veth_addr=192.0.2.49
+	local gw_addr=192.0.2.50
+
+	setup_sw_common $ns $local_addr $remote_addr $veth_addr $gw_addr
+}
+
+setup_sw2()
+{
+	local ns=$sw2
+	local local_addr=192.0.2.34
+	local remote_addr=192.0.2.33
+	local veth_addr=192.0.2.50
+	local gw_addr=192.0.2.49
+
+	setup_sw_common $ns $local_addr $remote_addr $veth_addr $gw_addr
+}
+
+setup()
+{
+	set -e
+
+	setup_topo
+	setup_h1
+	setup_h2
+	setup_sw1
+	setup_sw2
+
+	sleep 5
+
+	set +e
+}
+
+cleanup()
+{
+	cleanup_ns $h1 $h2 $sw1 $sw2
+}
+
+################################################################################
+# Tests
+
+neigh_suppress_arp_common()
+{
+	local vid=$1; shift
+	local sip=$1; shift
+	local tip=$1; shift
+	local h2_mac
+
+	echo
+	echo "Per-port ARP suppression - VLAN $vid"
+	echo "----------------------------------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto 0x0806 flower indev swp1 arp_tip $tip arp_sip $sip arp_op request action pass"
+
+	# Initial state - check that ARP requests are not suppressed and that
+	# ARP replies are received.
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "ARP suppression"
+
+	# Enable neighbor suppression and check that nothing changes compared
+	# to the initial state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "ARP suppression"
+
+	# Install an FDB entry for the remote host and check that nothing
+	# changes compared to the initial state.
+	h2_mac=$(ip -n $h2 -j -p link show eth0.$vid | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac dev vx0 master static vlan $vid"
+	log_test $? 0 "FDB entry installation"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "ARP suppression"
+
+	# Install a neighbor on the matching SVI interface and check that ARP
+	# requests are suppressed.
+	run_cmd "ip -n $sw1 neigh replace $tip lladdr $h2_mac nud permanent dev br0.$vid"
+	log_test $? 0 "Neighbor entry installation"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "ARP suppression"
+
+	# Take the second host down and check that ARP requests are suppressed
+	# and that ARP replies are received.
+	run_cmd "ip -n $h2 link set dev eth0.$vid down"
+	log_test $? 0 "H2 down"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "ARP suppression"
+
+	run_cmd "ip -n $h2 link set dev eth0.$vid up"
+	log_test $? 0 "H2 up"
+
+	# Disable neighbor suppression and check that ARP requests are no
+	# longer suppressed.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 0 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 4
+	log_test $? 0 "ARP suppression"
+
+	# Take the second host down and check that ARP requests are not
+	# suppressed and that ARP replies are not received.
+	run_cmd "ip -n $h2 link set dev eth0.$vid down"
+	log_test $? 0 "H2 down"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip -I eth0.$vid $tip"
+	log_test $? 1 "arping"
+	tc_check_packets $sw1 "dev vx0 egress" 101 5
+	log_test $? 0 "ARP suppression"
+}
+
+neigh_suppress_arp()
+{
+	local vid=10
+	local sip=192.0.2.1
+	local tip=192.0.2.2
+
+	neigh_suppress_arp_common $vid $sip $tip
+
+	vid=20
+	sip=192.0.2.17
+	tip=192.0.2.18
+	neigh_suppress_arp_common $vid $sip $tip
+}
+
+neigh_suppress_uc_arp_common()
+{
+	local vid=$1; shift
+	local sip=$1; shift
+	local tip=$1; shift
+	local tmac
+
+	echo
+	echo "Unicast ARP, per-port ARP suppression - VLAN $vid"
+	echo "-----------------------------------------------"
+
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	tmac=$(ip -n $h2 -j -p link show eth0.$vid | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $tmac dev vx0 master static vlan $vid"
+	run_cmd "ip -n $sw1 neigh replace $tip lladdr $tmac nud permanent dev br0.$vid"
+
+	run_cmd "tc -n $h1 qdisc replace dev eth0.$vid clsact"
+	run_cmd "tc -n $h1 filter replace dev eth0.$vid ingress pref 1 handle 101 proto arp flower arp_sip $tip arp_op reply action pass"
+
+	run_cmd "tc -n $h2 qdisc replace dev eth0.$vid clsact"
+	run_cmd "tc -n $h2 filter replace dev eth0.$vid egress pref 1 handle 101 proto arp flower arp_tip $sip arp_op reply action pass"
+
+	run_cmd "ip netns exec $h1 mausezahn eth0.$vid -c 1 -a own -b $tmac -t arp 'request sip=$sip, tip=$tip, tmac=$tmac' -q"
+	tc_check_packets $h1 "dev eth0.$vid ingress" 101 1
+	log_test $? 0 "Unicast ARP, suppression on, h1 filter"
+	tc_check_packets $h2 "dev eth0.$vid egress" 101 1
+	log_test $? 0 "Unicast ARP, suppression on, h2 filter"
+}
+
+neigh_suppress_uc_arp()
+{
+	local vid=10
+	local sip=192.0.2.1
+	local tip=192.0.2.2
+
+	neigh_suppress_uc_arp_common $vid $sip $tip
+
+	vid=20
+	sip=192.0.2.17
+	tip=192.0.2.18
+	neigh_suppress_uc_arp_common $vid $sip $tip
+}
+
+neigh_suppress_ns_common()
+{
+	local vid=$1; shift
+	local saddr=$1; shift
+	local daddr=$1; shift
+	local maddr=$1; shift
+	local h2_mac
+
+	echo
+	echo "Per-port NS suppression - VLAN $vid"
+	echo "---------------------------------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto ipv6 flower indev swp1 ip_proto icmpv6 dst_ip $maddr src_ip $saddr type 135 code 0 action pass"
+
+	# Initial state - check that NS messages are not suppressed and that ND
+	# messages are received.
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "NS suppression"
+
+	# Enable neighbor suppression and check that nothing changes compared
+	# to the initial state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "NS suppression"
+
+	# Install an FDB entry for the remote host and check that nothing
+	# changes compared to the initial state.
+	h2_mac=$(ip -n $h2 -j -p link show eth0.$vid | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac dev vx0 master static vlan $vid"
+	log_test $? 0 "FDB entry installation"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "NS suppression"
+
+	# Install a neighbor on the matching SVI interface and check that NS
+	# messages are suppressed.
+	run_cmd "ip -n $sw1 neigh replace $daddr lladdr $h2_mac nud permanent dev br0.$vid"
+	log_test $? 0 "Neighbor entry installation"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "NS suppression"
+
+	# Take the second host down and check that NS messages are suppressed
+	# and that ND messages are received.
+	run_cmd "ip -n $h2 link set dev eth0.$vid down"
+	log_test $? 0 "H2 down"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 3
+	log_test $? 0 "NS suppression"
+
+	run_cmd "ip -n $h2 link set dev eth0.$vid up"
+	log_test $? 0 "H2 up"
+
+	# Disable neighbor suppression and check that NS messages are no longer
+	# suppressed.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 0 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 4
+	log_test $? 0 "NS suppression"
+
+	# Take the second host down and check that NS messages are not
+	# suppressed and that ND messages are not received.
+	run_cmd "ip -n $h2 link set dev eth0.$vid down"
+	log_test $? 0 "H2 down"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr -w 5000 $daddr eth0.$vid"
+	log_test $? 2 "ndisc6"
+	tc_check_packets $sw1 "dev vx0 egress" 101 5
+	log_test $? 0 "NS suppression"
+}
+
+neigh_suppress_ns()
+{
+	local vid=10
+	local saddr=2001:db8:1::1
+	local daddr=2001:db8:1::2
+	local maddr=ff02::1:ff00:2
+
+	neigh_suppress_ns_common $vid $saddr $daddr $maddr
+
+	vid=20
+	saddr=2001:db8:2::1
+	daddr=2001:db8:2::2
+	maddr=ff02::1:ff00:2
+
+	neigh_suppress_ns_common $vid $saddr $daddr $maddr
+}
+
+icmpv6_header_get()
+{
+	local csum=$1; shift
+	local tip=$1; shift
+	local type
+	local p
+
+	# Type 135 (Neighbor Solicitation), hex format
+	type="87"
+	p=$(:
+		)"$type:"$(                     : ICMPv6.type
+		)"00:"$(                        : ICMPv6.code
+		)"$csum:"$(                     : ICMPv6.checksum
+		)"00:00:00:00:"$(               : Reserved
+	        )"$tip:"$(	                : Target Address
+		)
+	echo $p
+}
+
+neigh_suppress_uc_ns_common()
+{
+	local vid=$1; shift
+	local sip=$1; shift
+	local dip=$1; shift
+	local full_dip=$1; shift
+	local csum=$1; shift
+	local tmac
+
+	echo
+	echo "Unicast NS, per-port NS suppression - VLAN $vid"
+	echo "---------------------------------------------"
+
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	tmac=$(ip -n $h2 -j -p link show eth0.$vid | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $tmac dev vx0 master static vlan $vid"
+	run_cmd "ip -n $sw1 -6 neigh replace $dip lladdr $tmac nud permanent dev br0.$vid"
+
+	run_cmd "tc -n $h1 qdisc replace dev eth0.$vid clsact"
+	run_cmd "tc -n $h1 filter replace dev eth0.$vid ingress pref 1 handle 101 proto ipv6 flower ip_proto icmpv6 src_ip $dip type 136 code 0 action pass"
+
+	run_cmd "tc -n $h2 qdisc replace dev eth0.$vid clsact"
+	run_cmd "tc -n $h2 filter replace dev eth0.$vid egress pref 1 handle 101 proto ipv6 flower ip_proto icmpv6 dst_ip $sip type 136 code 0 action pass"
+
+	run_cmd "ip netns exec $h1 mausezahn -6 eth0.$vid -c 1 -a own -b $tmac -A $sip -B $dip -t ip hop=255,next=58,payload=$(icmpv6_header_get $csum $full_dip) -q"
+	tc_check_packets $h1 "dev eth0.$vid ingress" 101 1
+	log_test $? 0 "Unicast NS, suppression on, h1 filter"
+	tc_check_packets $h2 "dev eth0.$vid egress" 101 1
+	log_test $? 0 "Unicast NS, suppression on, h2 filter"
+}
+
+neigh_suppress_uc_ns()
+{
+	local vid=10
+	local saddr=2001:db8:1::1
+	local daddr=2001:db8:1::2
+	local full_daddr=20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:02
+	local csum="ef:79"
+
+	neigh_suppress_uc_ns_common $vid $saddr $daddr $full_daddr $csum
+
+	vid=20
+	saddr=2001:db8:2::1
+	daddr=2001:db8:2::2
+	full_daddr=20:01:0d:b8:00:02:00:00:00:00:00:00:00:00:00:02
+	csum="ef:76"
+
+	neigh_suppress_uc_ns_common $vid $saddr $daddr $full_daddr $csum
+}
+
+neigh_vlan_suppress_arp()
+{
+	local vid1=10
+	local vid2=20
+	local sip1=192.0.2.1
+	local sip2=192.0.2.17
+	local tip1=192.0.2.2
+	local tip2=192.0.2.18
+	local h2_mac1
+	local h2_mac2
+
+	echo
+	echo "Per-{Port, VLAN} ARP suppression"
+	echo "--------------------------------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto 0x0806 flower indev swp1 arp_tip $tip1 arp_sip $sip1 arp_op request action pass"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 102 proto 0x0806 flower indev swp1 arp_tip $tip2 arp_sip $sip2 arp_op request action pass"
+
+	h2_mac1=$(ip -n $h2 -j -p link show eth0.$vid1 | jq -r '.[]["address"]')
+	h2_mac2=$(ip -n $h2 -j -p link show eth0.$vid2 | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac1 dev vx0 master static vlan $vid1"
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac2 dev vx0 master static vlan $vid2"
+	run_cmd "ip -n $sw1 neigh replace $tip1 lladdr $h2_mac1 nud permanent dev br0.$vid1"
+	run_cmd "ip -n $sw1 neigh replace $tip2 lladdr $h2_mac2 nud permanent dev br0.$vid2"
+
+	# Enable per-{Port, VLAN} neighbor suppression and check that ARP
+	# requests are not suppressed and that ARP replies are received.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_vlan_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_vlan_suppress on\""
+	log_test $? 0 "\"neigh_vlan_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 1
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+
+	# Enable neighbor suppression on VLAN 10 and check that only on this
+	# VLAN ARP requests are suppressed.
+	run_cmd "bridge -n $sw1 vlan set vid $vid1 dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid1 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on (VLAN $vid1)"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid2 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off (VLAN $vid2)"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 2
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+
+	# Enable neighbor suppression on the port and check that it has no
+	# effect compared to previous state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 3
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+
+	# Disable neighbor suppression on the port and check that it has no
+	# effect compared to previous state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 4
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+
+	# Disable neighbor suppression on VLAN 10 and check that ARP requests
+	# are no longer suppressed on this VLAN.
+	run_cmd "bridge -n $sw1 vlan set vid $vid1 dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid1 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off (VLAN $vid1)"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 5
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+
+	# Disable per-{Port, VLAN} neighbor suppression, enable neighbor
+	# suppression on the port and check that on both VLANs ARP requests are
+	# suppressed.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_vlan_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_vlan_suppress off\""
+	log_test $? 0 "\"neigh_vlan_suppress\" is off"
+
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip1 -I eth0.$vid1 $tip1"
+	log_test $? 0 "arping (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 arping -q -b -c 1 -w 5 -s $sip2 -I eth0.$vid2 $tip2"
+	log_test $? 0 "arping (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "ARP suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 5
+	log_test $? 0 "ARP suppression (VLAN $vid2)"
+}
+
+neigh_vlan_suppress_ns()
+{
+	local vid1=10
+	local vid2=20
+	local saddr1=2001:db8:1::1
+	local saddr2=2001:db8:2::1
+	local daddr1=2001:db8:1::2
+	local daddr2=2001:db8:2::2
+	local maddr=ff02::1:ff00:2
+	local h2_mac1
+	local h2_mac2
+
+	echo
+	echo "Per-{Port, VLAN} NS suppression"
+	echo "-------------------------------"
+
+	run_cmd "tc -n $sw1 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 101 proto ipv6 flower indev swp1 ip_proto icmpv6 dst_ip $maddr src_ip $saddr1 type 135 code 0 action pass"
+	run_cmd "tc -n $sw1 filter replace dev vx0 egress pref 1 handle 102 proto ipv6 flower indev swp1 ip_proto icmpv6 dst_ip $maddr src_ip $saddr2 type 135 code 0 action pass"
+
+	h2_mac1=$(ip -n $h2 -j -p link show eth0.$vid1 | jq -r '.[]["address"]')
+	h2_mac2=$(ip -n $h2 -j -p link show eth0.$vid2 | jq -r '.[]["address"]')
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac1 dev vx0 master static vlan $vid1"
+	run_cmd "bridge -n $sw1 fdb replace $h2_mac2 dev vx0 master static vlan $vid2"
+	run_cmd "ip -n $sw1 neigh replace $daddr1 lladdr $h2_mac1 nud permanent dev br0.$vid1"
+	run_cmd "ip -n $sw1 neigh replace $daddr2 lladdr $h2_mac2 nud permanent dev br0.$vid2"
+
+	# Enable per-{Port, VLAN} neighbor suppression and check that NS
+	# messages are not suppressed and that ND messages are received.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_vlan_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_vlan_suppress on\""
+	log_test $? 0 "\"neigh_vlan_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 1
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+
+	# Enable neighbor suppression on VLAN 10 and check that only on this
+	# VLAN NS messages are suppressed.
+	run_cmd "bridge -n $sw1 vlan set vid $vid1 dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid1 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on (VLAN $vid1)"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid2 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off (VLAN $vid2)"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 2
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+
+	# Enable neighbor suppression on the port and check that it has no
+	# effect compared to previous state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 3
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+
+	# Disable neighbor suppression on the port and check that it has no
+	# effect compared to previous state.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 1
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 4
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+
+	# Disable neighbor suppression on VLAN 10 and check that NS messages
+	# are no longer suppressed on this VLAN.
+	run_cmd "bridge -n $sw1 vlan set vid $vid1 dev vx0 neigh_suppress off"
+	run_cmd "bridge -n $sw1 -d vlan show dev vx0 vid $vid1 | grep \"neigh_suppress off\""
+	log_test $? 0 "\"neigh_suppress\" is off (VLAN $vid1)"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 5
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+
+	# Disable per-{Port, VLAN} neighbor suppression, enable neighbor
+	# suppression on the port and check that on both VLANs NS messages are
+	# suppressed.
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_vlan_suppress off"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_vlan_suppress off\""
+	log_test $? 0 "\"neigh_vlan_suppress\" is off"
+
+	run_cmd "bridge -n $sw1 link set dev vx0 neigh_suppress on"
+	run_cmd "bridge -n $sw1 -d link show dev vx0 | grep \"neigh_suppress on\""
+	log_test $? 0 "\"neigh_suppress\" is on"
+
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr1 -w 5000 $daddr1 eth0.$vid1"
+	log_test $? 0 "ndisc6 (VLAN $vid1)"
+	run_cmd "ip netns exec $h1 ndisc6 -q -r 1 -s $saddr2 -w 5000 $daddr2 eth0.$vid2"
+	log_test $? 0 "ndisc6 (VLAN $vid2)"
+
+	tc_check_packets $sw1 "dev vx0 egress" 101 2
+	log_test $? 0 "NS suppression (VLAN $vid1)"
+	tc_check_packets $sw1 "dev vx0 egress" 102 5
+	log_test $? 0 "NS suppression (VLAN $vid2)"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+trap cleanup EXIT
+
+while getopts ":t:pPvh" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# Make sure we don't pause twice.
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v bridge)" ]; then
+	echo "SKIP: Could not run test without bridge tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tc)" ]; then
+	echo "SKIP: Could not run test without tc tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v arping)" ]; then
+	echo "SKIP: Could not run test without arping tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ndisc6)" ]; then
+	echo "SKIP: Could not run test without ndisc6 tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+	echo "SKIP: Could not run test without jq tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit $ksft_skip
+fi
+
+bridge link help 2>&1 | grep -q "neigh_vlan_suppress"
+if [ $? -ne 0 ]; then
+   echo "SKIP: iproute2 bridge too old, missing per-VLAN neighbor suppression support"
+   exit $ksft_skip
+fi
+
+# Start clean.
+cleanup
+
+for t in $TESTS
+do
+	setup; $t; cleanup;
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/test_ingress_egress_chaining.sh b/tools/testing/selftests/net/test_ingress_egress_chaining.sh
new file mode 100644
index 000000000000..08adff6bb3b6
--- /dev/null
+++ b/tools/testing/selftests/net/test_ingress_egress_chaining.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test runs a simple ingress tc setup between two veth pairs,
+# and chains a single egress rule to test ingress chaining to egress.
+#
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+needed_mods="act_mirred cls_flower sch_ingress"
+for mod in $needed_mods; do
+	modinfo $mod &>/dev/null || { echo "SKIP: Need act_mirred module"; exit $ksft_skip; }
+done
+
+ns="ns$((RANDOM%899+100))"
+veth1="veth1$((RANDOM%899+100))"
+veth2="veth2$((RANDOM%899+100))"
+peer1="peer1$((RANDOM%899+100))"
+peer2="peer2$((RANDOM%899+100))"
+ip_peer1=198.51.100.5
+ip_peer2=198.51.100.6
+
+function fail() {
+	echo "FAIL: $@" >> /dev/stderr
+	exit 1
+}
+
+function cleanup() {
+	killall -q -9 udpgso_bench_rx
+	ip link del $veth1 &> /dev/null
+	ip link del $veth2 &> /dev/null
+	ip netns del $ns &> /dev/null
+}
+trap cleanup EXIT
+
+function config() {
+	echo "Setup veth pairs [$veth1, $peer1], and veth pair [$veth2, $peer2]"
+	ip link add $veth1 type veth peer name $peer1
+	ip link add $veth2 type veth peer name $peer2
+	ip addr add $ip_peer1/24 dev $peer1
+	ip link set $peer1 up
+	ip netns add $ns
+	ip link set dev $peer2 netns $ns
+	ip netns exec $ns ip addr add $ip_peer2/24 dev $peer2
+	ip netns exec $ns ip link set $peer2 up
+	ip link set $veth1 up
+	ip link set $veth2 up
+
+	echo "Add tc filter ingress->egress forwarding $veth1 <-> $veth2"
+	tc qdisc add dev $veth2 ingress
+	tc qdisc add dev $veth1 ingress
+	tc filter add dev $veth2 ingress prio 1 proto all flower \
+		action mirred egress redirect dev $veth1
+	tc filter add dev $veth1 ingress prio 1 proto all flower \
+		action mirred egress redirect dev $veth2
+
+	echo "Add tc filter egress->ingress forwarding $peer1 -> $veth1, bypassing the veth pipe"
+	tc qdisc add dev $peer1 clsact
+	tc filter add dev $peer1 egress prio 20 proto ip flower \
+		action mirred ingress redirect dev $veth1
+}
+
+function test_run() {
+	echo "Run tcp traffic"
+	./udpgso_bench_rx -t &
+	sleep 1
+	ip netns exec $ns timeout -k 2 10 ./udpgso_bench_tx -t -l 2 -4 -D $ip_peer1 || fail "traffic failed"
+	echo "Test passed"
+}
+
+config
+test_run
+trap - EXIT
+cleanup
diff --git a/tools/testing/selftests/net/test_neigh.sh b/tools/testing/selftests/net/test_neigh.sh
new file mode 100755
index 000000000000..7c594bf6ead0
--- /dev/null
+++ b/tools/testing/selftests/net/test_neigh.sh
@@ -0,0 +1,366 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+TESTS="
+	extern_valid_ipv4
+	extern_valid_ipv6
+"
+VERBOSE=0
+
+################################################################################
+# Utilities
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+		stderr=
+	fi
+
+	out=$(eval "$cmd" "$stderr")
+	rc=$?
+	if [ "$VERBOSE" -eq 1 ] && [ -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+################################################################################
+# Setup
+
+setup()
+{
+	set -e
+
+	setup_ns ns1 ns2
+
+	ip -n "$ns1" link add veth0 type veth peer name veth1 netns "$ns2"
+	ip -n "$ns1" link set dev veth0 up
+	ip -n "$ns2" link set dev veth1 up
+
+	ip -n "$ns1" address add 192.0.2.1/24 dev veth0
+	ip -n "$ns1" address add 2001:db8:1::1/64 dev veth0 nodad
+	ip -n "$ns2" address add 192.0.2.2/24 dev veth1
+	ip -n "$ns2" address add 2001:db8:1::2/64 dev veth1 nodad
+
+	ip netns exec "$ns1" sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec "$ns2" sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+
+	sleep 5
+
+	set +e
+}
+
+exit_cleanup_all()
+{
+	cleanup_all_ns
+	exit "${EXIT_STATUS}"
+}
+
+################################################################################
+# Tests
+
+extern_valid_common()
+{
+	local af_str=$1; shift
+	local ip_addr=$1; shift
+	local tbl_name=$1; shift
+	local subnet=$1; shift
+	local mac
+
+	mac=$(ip -n "$ns2" -j link show dev veth1 | jq -r '.[]["address"]')
+
+	RET=0
+
+	# Check that simple addition works.
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "No \"extern_valid\" flag after addition"
+
+	log_test "$af_str \"extern_valid\" flag: Add entry"
+
+	RET=0
+
+	# Check that an entry cannot be added with "extern_valid" flag and an
+	# invalid state.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr nud none dev veth0 extern_valid"
+	check_fail $? "Managed to add an entry with \"extern_valid\" flag and an invalid state"
+
+	log_test "$af_str \"extern_valid\" flag: Add with an invalid state"
+
+	RET=0
+
+	# Check that entry cannot be added with both "extern_valid" flag and
+	# "use" / "managed" flag.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid use"
+	check_fail $? "Managed to add an entry with \"extern_valid\" flag and \"use\" flag"
+
+	log_test "$af_str \"extern_valid\" flag: Add with \"use\" flag"
+
+	RET=0
+
+	# Check that "extern_valid" flag can be toggled using replace.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "Did not manage to set \"extern_valid\" flag with replace"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr lladdr $mac nud stale dev veth0"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_fail $? "Did not manage to clear \"extern_valid\" flag with replace"
+
+	log_test "$af_str \"extern_valid\" flag: Replace entry"
+
+	RET=0
+
+	# Check that an existing "extern_valid" entry can be marked as
+	# "managed".
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr lladdr $mac nud stale dev veth0 extern_valid managed"
+	check_err $? "Did not manage to add \"managed\" flag to an existing \"extern_valid\" entry"
+
+	log_test "$af_str \"extern_valid\" flag: Replace entry with \"managed\" flag"
+
+	RET=0
+
+	# Check that entry cannot be replaced with "extern_valid" flag and an
+	# invalid state.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr nud none dev veth0 extern_valid"
+	check_fail $? "Managed to replace an entry with \"extern_valid\" flag and an invalid state"
+
+	log_test "$af_str \"extern_valid\" flag: Replace with an invalid state"
+
+	RET=0
+
+	# Check that an "extern_valid" entry is flushed when the interface is
+	# put administratively down.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 link set dev veth0 down"
+	run_cmd "ip -n $ns1 link set dev veth0 up"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0"
+	check_fail $? "\"extern_valid\" entry not flushed upon interface down"
+
+	log_test "$af_str \"extern_valid\" flag: Interface down"
+
+	RET=0
+
+	# Check that an "extern_valid" entry is not flushed when the interface
+	# loses its carrier.
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns2 link set dev veth1 down"
+	run_cmd "ip -n $ns2 link set dev veth1 up"
+	run_cmd "sleep 2"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0"
+	check_err $? "\"extern_valid\" entry flushed upon carrier down"
+
+	log_test "$af_str \"extern_valid\" flag: Carrier down"
+
+	RET=0
+
+	# Check that when entry transitions to "reachable" state it maintains
+	# the "extern_valid" flag. Wait "delay_probe" seconds for ARP request /
+	# NS to be sent.
+	local delay_probe
+
+	delay_probe=$(ip -n "$ns1" -j ntable show dev veth0 name "$tbl_name" | jq '.[]["delay_probe"]')
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr lladdr $mac nud stale dev veth0 extern_valid use"
+	run_cmd "sleep $((delay_probe / 1000 + 2))"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"REACHABLE\""
+	check_err $? "Entry did not transition to \"reachable\" state"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "Entry did not maintain \"extern_valid\" flag after transition to \"reachable\" state"
+
+	log_test "$af_str \"extern_valid\" flag: Transition to \"reachable\" state"
+
+	RET=0
+
+	# Drop all packets, trigger resolution and check that entry goes back
+	# to "stale" state instead of "failed".
+	local mcast_reprobes
+	local retrans_time
+	local ucast_probes
+	local app_probes
+	local probes
+	local delay
+
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	run_cmd "tc -n $ns2 qdisc add dev veth1 clsact"
+	run_cmd "tc -n $ns2 filter add dev veth1 ingress proto all matchall action drop"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh replace $ip_addr lladdr $mac nud stale dev veth0 extern_valid use"
+	retrans_time=$(ip -n "$ns1" -j ntable show dev veth0 name "$tbl_name" | jq '.[]["retrans"]')
+	ucast_probes=$(ip -n "$ns1" -j ntable show dev veth0 name "$tbl_name" | jq '.[]["ucast_probes"]')
+	app_probes=$(ip -n "$ns1" -j ntable show dev veth0 name "$tbl_name" | jq '.[]["app_probes"]')
+	mcast_reprobes=$(ip -n "$ns1" -j ntable show dev veth0 name "$tbl_name" | jq '.[]["mcast_reprobes"]')
+	delay=$((delay_probe + (ucast_probes + app_probes + mcast_reprobes) * retrans_time))
+	run_cmd "sleep $((delay / 1000 + 2))"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"STALE\""
+	check_err $? "Entry did not return to \"stale\" state"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "Entry did not maintain \"extern_valid\" flag after returning to \"stale\" state"
+	probes=$(ip -n "$ns1" -j -s neigh get "$ip_addr" dev veth0 | jq '.[]["probes"]')
+	if [[ $probes -eq 0 ]]; then
+		check_err 1 "No probes were sent"
+	fi
+
+	log_test "$af_str \"extern_valid\" flag: Transition back to \"stale\" state"
+
+	run_cmd "tc -n $ns2 qdisc del dev veth1 clsact"
+
+	RET=0
+
+	# Forced garbage collection runs whenever the number of entries is
+	# larger than "thresh3" and deletes stale entries that have not been
+	# updated in the last 5 seconds.
+	#
+	# Check that an "extern_valid" entry survives a forced garbage
+	# collection. Add an entry, wait 5 seconds and add more entries than
+	# "thresh3" so that forced garbage collection will run.
+	#
+	# Note that the garbage collection thresholds are global resources and
+	# that changes in the initial namespace affect all the namespaces.
+	local forced_gc_runs_t0
+	local forced_gc_runs_t1
+	local orig_thresh1
+	local orig_thresh2
+	local orig_thresh3
+
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	orig_thresh1=$(ip -j ntable show name "$tbl_name" | jq '.[] | select(has("thresh1")) | .["thresh1"]')
+	orig_thresh2=$(ip -j ntable show name "$tbl_name" | jq '.[] | select(has("thresh2")) | .["thresh2"]')
+	orig_thresh3=$(ip -j ntable show name "$tbl_name" | jq '.[] | select(has("thresh3")) | .["thresh3"]')
+	run_cmd "ip ntable change name $tbl_name thresh3 10 thresh2 9 thresh1 8"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh add ${subnet}3 lladdr $mac nud stale dev veth0"
+	run_cmd "sleep 5"
+	forced_gc_runs_t0=$(ip -j -s ntable show name "$tbl_name" | jq '.[] | select(has("forced_gc_runs")) | .["forced_gc_runs"]')
+	for i in {1..20}; do
+		run_cmd "ip -n $ns1 neigh add ${subnet}$((i + 4)) nud none dev veth0"
+	done
+	forced_gc_runs_t1=$(ip -j -s ntable show name "$tbl_name" | jq '.[] | select(has("forced_gc_runs")) | .["forced_gc_runs"]')
+	if [[ $forced_gc_runs_t1 -eq $forced_gc_runs_t0 ]]; then
+		check_err 1 "Forced garbage collection did not run"
+	fi
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "Entry with \"extern_valid\" flag did not survive forced garbage collection"
+	run_cmd "ip -n $ns1 neigh get ${subnet}3 dev veth0"
+	check_fail $? "Entry without \"extern_valid\" flag survived forced garbage collection"
+
+	log_test "$af_str \"extern_valid\" flag: Forced garbage collection"
+
+	run_cmd "ip ntable change name $tbl_name thresh3 $orig_thresh3 thresh2 $orig_thresh2 thresh1 $orig_thresh1"
+
+	RET=0
+
+	# Periodic garbage collection runs every "base_reachable"/2 seconds and
+	# if the number of entries is larger than "thresh1", then it deletes
+	# stale entries that have not been used in the last "gc_stale" seconds.
+	#
+	# Check that an "extern_valid" entry survives a periodic garbage
+	# collection. Add an "extern_valid" entry, add more than "thresh1"
+	# regular entries, wait "base_reachable" (longer than "gc_stale")
+	# seconds and check that the "extern_valid" entry was not deleted.
+	#
+	# Note that the garbage collection thresholds and "base_reachable" are
+	# global resources and that changes in the initial namespace affect all
+	# the namespaces.
+	local periodic_gc_runs_t0
+	local periodic_gc_runs_t1
+	local orig_base_reachable
+	local orig_gc_stale
+
+	run_cmd "ip -n $ns1 neigh flush dev veth0"
+	orig_thresh1=$(ip -j ntable show name "$tbl_name" | jq '.[] | select(has("thresh1")) | .["thresh1"]')
+	orig_base_reachable=$(ip -j ntable show name "$tbl_name" | jq '.[] | select(has("thresh1")) | .["base_reachable"]')
+	run_cmd "ip ntable change name $tbl_name thresh1 10 base_reachable 10000"
+	orig_gc_stale=$(ip -n "$ns1" -j ntable show name "$tbl_name" dev veth0 | jq '.[]["gc_stale"]')
+	run_cmd "ip -n $ns1 ntable change name $tbl_name dev veth0 gc_stale 1000"
+	run_cmd "ip -n $ns1 neigh add $ip_addr lladdr $mac nud stale dev veth0 extern_valid"
+	run_cmd "ip -n $ns1 neigh add ${subnet}3 lladdr $mac nud stale dev veth0"
+	# Wait orig_base_reachable/2 for the new interval to take effect.
+	run_cmd "sleep $(((orig_base_reachable / 1000) / 2 + 2))"
+	for i in {1..20}; do
+		run_cmd "ip -n $ns1 neigh add ${subnet}$((i + 4)) nud none dev veth0"
+	done
+	periodic_gc_runs_t0=$(ip -j -s ntable show name "$tbl_name" | jq '.[] | select(has("periodic_gc_runs")) | .["periodic_gc_runs"]')
+	run_cmd "sleep 10"
+	periodic_gc_runs_t1=$(ip -j -s ntable show name "$tbl_name" | jq '.[] | select(has("periodic_gc_runs")) | .["periodic_gc_runs"]')
+	[[ $periodic_gc_runs_t1 -ne $periodic_gc_runs_t0 ]]
+	check_err $? "Periodic garbage collection did not run"
+	run_cmd "ip -n $ns1 neigh get $ip_addr dev veth0 | grep \"extern_valid\""
+	check_err $? "Entry with \"extern_valid\" flag did not survive periodic garbage collection"
+	run_cmd "ip -n $ns1 neigh get ${subnet}3 dev veth0"
+	check_fail $? "Entry without \"extern_valid\" flag survived periodic garbage collection"
+
+	log_test "$af_str \"extern_valid\" flag: Periodic garbage collection"
+
+	run_cmd "ip -n $ns1 ntable change name $tbl_name dev veth0 gc_stale $orig_gc_stale"
+	run_cmd "ip ntable change name $tbl_name thresh1 $orig_thresh1 base_reachable $orig_base_reachable"
+}
+
+extern_valid_ipv4()
+{
+	extern_valid_common "IPv4" 192.0.2.2 "arp_cache" 192.0.2.
+}
+
+extern_valid_ipv6()
+{
+	extern_valid_common "IPv6" 2001:db8:1::2 "ndisc_cache" 2001:db8:1::
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -v          Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+while getopts ":t:pvh" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$((VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+require_command jq
+
+if ! ip neigh help 2>&1 | grep -q "extern_valid"; then
+	echo "SKIP: iproute2 ip too old, missing \"extern_valid\" support"
+	exit "$ksft_skip"
+fi
+
+trap exit_cleanup_all EXIT
+
+for t in $TESTS
+do
+	setup; $t; cleanup_all_ns;
+done
diff --git a/tools/testing/selftests/net/test_so_rcv.sh b/tools/testing/selftests/net/test_so_rcv.sh
new file mode 100755
index 000000000000..d8aa4362879d
--- /dev/null
+++ b/tools/testing/selftests/net/test_so_rcv.sh
@@ -0,0 +1,73 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+HOSTS=("127.0.0.1" "::1")
+PORT=1234
+TOTAL_TESTS=0
+FAILED_TESTS=0
+
+declare -A TESTS=(
+	["SO_RCVPRIORITY"]="-P 2"
+	["SO_RCVMARK"]="-M 3"
+)
+
+check_result() {
+	((TOTAL_TESTS++))
+	if [ "$1" -ne 0 ]; then
+		((FAILED_TESTS++))
+	fi
+}
+
+cleanup()
+{
+	cleanup_ns $NS
+}
+
+trap cleanup EXIT
+
+setup_ns NS
+
+for HOST in "${HOSTS[@]}"; do
+	PROTOCOL="IPv4"
+	if [[ "$HOST" == "::1" ]]; then
+		PROTOCOL="IPv6"
+	fi
+	for test_name in "${!TESTS[@]}"; do
+		echo "Running $test_name test, $PROTOCOL"
+		arg=${TESTS[$test_name]}
+
+		ip netns exec $NS ./so_rcv_listener $arg $HOST $PORT &
+		LISTENER_PID=$!
+
+		sleep 0.5
+
+		if ! ip netns exec $NS ./cmsg_sender $arg $HOST $PORT; then
+			echo "Sender failed for $test_name, $PROTOCOL"
+			kill "$LISTENER_PID" 2>/dev/null
+			wait "$LISTENER_PID"
+			check_result 1
+			continue
+		fi
+
+		wait "$LISTENER_PID"
+		LISTENER_EXIT_CODE=$?
+
+		if [ "$LISTENER_EXIT_CODE" -eq 0 ]; then
+			echo "Rcv test OK for $test_name, $PROTOCOL"
+			check_result 0
+		else
+			echo "Rcv test FAILED for $test_name, $PROTOCOL"
+			check_result 1
+		fi
+	done
+done
+
+if [ "$FAILED_TESTS" -ne 0 ]; then
+	echo "FAIL - $FAILED_TESTS/$TOTAL_TESTS tests failed"
+	exit ${KSFT_FAIL}
+else
+	echo "OK - All $TOTAL_TESTS tests passed"
+	exit ${KSFT_PASS}
+fi
diff --git a/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
new file mode 100755
index 000000000000..8b414d0edada
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_fdb_changelink.sh
@@ -0,0 +1,114 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	test_set_remote
+	test_change_mc_remote
+"
+source lib.sh
+
+check_remotes()
+{
+	local what=$1; shift
+	local N=$(bridge fdb sh dev vx | grep 00:00:00:00:00:00 | wc -l)
+
+	((N == 2))
+	check_err $? "expected 2 remotes after $what, got $N"
+}
+
+# Check FDB default-remote handling across "ip link set".
+test_set_remote()
+{
+	RET=0
+
+	adf_ip_link_add vx up type vxlan id 2000 dstport 4789
+	bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.20 self permanent
+	bridge fdb ap dev vx 00:00:00:00:00:00 dst 192.0.2.30 self permanent
+	check_remotes "fdb append"
+
+	ip link set dev vx type vxlan remote 192.0.2.30
+	check_remotes "link set"
+
+	log_test 'FDB default-remote handling across "ip link set"'
+}
+
+fmt_remote()
+{
+	local addr=$1; shift
+
+	if [[ $addr == 224.* ]]; then
+		echo "group $addr"
+	else
+		echo "remote $addr"
+	fi
+}
+
+change_remote()
+{
+	local remote=$1; shift
+
+	ip link set dev vx type vxlan $(fmt_remote $remote) dev v1
+}
+
+check_membership()
+{
+	local check_vec=("$@")
+
+	local memberships
+	memberships=$(
+	    netstat -n --groups |
+		sed -n '/^v1\b/p' |
+		grep -o '[^ ]*$'
+	)
+	check_err $? "Couldn't obtain group memberships"
+
+	local item
+	for item in "${check_vec[@]}"; do
+		eval "local $item"
+		echo "$memberships" | grep -q "\b$group\b"
+		check_err_fail $fail $? "$group is_ex reported in IGMP query response"
+	done
+}
+
+test_change_mc_remote()
+{
+	check_command netstat || return
+
+	adf_ip_link_add v1 up type veth peer name v2
+	adf_ip_link_set_up v2
+
+	RET=0
+
+	adf_ip_link_add vx up type vxlan dstport 4789 \
+		local 192.0.2.1 $(fmt_remote 224.1.1.1) dev v1 vni 1000
+
+	check_membership "group=224.1.1.1 fail=0" \
+			 "group=224.1.1.2 fail=1" \
+			 "group=224.1.1.3 fail=1"
+
+	log_test "MC group report after VXLAN creation"
+
+	RET=0
+
+	change_remote 224.1.1.2
+	check_membership "group=224.1.1.1 fail=1" \
+			 "group=224.1.1.2 fail=0" \
+			 "group=224.1.1.3 fail=1"
+
+	log_test "MC group report after changing VXLAN remote MC->MC"
+
+	RET=0
+
+	change_remote 192.0.2.2
+	check_membership "group=224.1.1.1 fail=1" \
+			 "group=224.1.1.2 fail=1" \
+			 "group=224.1.1.3 fail=1"
+
+	log_test "MC group report after changing VXLAN remote MC->UC"
+}
+
+trap defer_scopes_cleanup EXIT
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/test_vxlan_mdb.sh b/tools/testing/selftests/net/test_vxlan_mdb.sh
new file mode 100755
index 000000000000..58da5de99ac4
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_mdb.sh
@@ -0,0 +1,2562 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# This test is for checking VXLAN MDB functionality. The topology consists of
+# two sets of namespaces: One for the testing of IPv4 underlay and another for
+# IPv6. In both cases, both IPv4 and IPv6 overlay traffic are tested.
+#
+# Data path functionality is tested by sending traffic from one of the upper
+# namespaces and checking using ingress tc filters that the expected traffic
+# was received by one of the lower namespaces.
+#
+# +------------------------------------+ +------------------------------------+
+# | ns1_v4                             | | ns1_v6                             |
+# |                                    | |                                    |
+# |    br0.10    br0.4000  br0.20      | |    br0.10    br0.4000  br0.20      |
+# |       +         +         +        | |       +         +         +        |
+# |       |         |         |        | |       |         |         |        |
+# |       |         |         |        | |       |         |         |        |
+# |       +---------+---------+        | |       +---------+---------+        |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |                 +                  | |                 +                  |
+# |                br0                 | |                br0                 |
+# |                 +                  | |                 +                  |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |                 +                  | |                 +                  |
+# |                vx0                 | |                vx0                 |
+# |                                    | |                                    |
+# |                                    | |                                    |
+# |               veth0                | |               veth0                |
+# |                 +                  | |                 +                  |
+# +-----------------|------------------+ +-----------------|------------------+
+#                   |                                      |
+# +-----------------|------------------+ +-----------------|------------------+
+# |                 +                  | |                 +                  |
+# |               veth0                | |               veth0                |
+# |                                    | |                                    |
+# |                                    | |                                    |
+# |                vx0                 | |                vx0                 |
+# |                 +                  | |                 +                  |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |                 +                  | |                 +                  |
+# |                br0                 | |                br0                 |
+# |                 +                  | |                 +                  |
+# |                 |                  | |                 |                  |
+# |                 |                  | |                 |                  |
+# |       +---------+---------+        | |       +---------+---------+        |
+# |       |         |         |        | |       |         |         |        |
+# |       |         |         |        | |       |         |         |        |
+# |       +         +         +        | |       +         +         +        |
+# |    br0.10    br0.4000  br0.10      | |    br0.10    br0.4000  br0.20      |
+# |                                    | |                                    |
+# | ns2_v4                             | | ns2_v6                             |
+# +------------------------------------+ +------------------------------------+
+
+source lib.sh
+ret=0
+
+CONTROL_PATH_TESTS="
+	basic_star_g_ipv4_ipv4
+	basic_star_g_ipv6_ipv4
+	basic_star_g_ipv4_ipv6
+	basic_star_g_ipv6_ipv6
+	basic_sg_ipv4_ipv4
+	basic_sg_ipv6_ipv4
+	basic_sg_ipv4_ipv6
+	basic_sg_ipv6_ipv6
+	star_g_ipv4_ipv4
+	star_g_ipv6_ipv4
+	star_g_ipv4_ipv6
+	star_g_ipv6_ipv6
+	sg_ipv4_ipv4
+	sg_ipv6_ipv4
+	sg_ipv4_ipv6
+	sg_ipv6_ipv6
+	dump_ipv4_ipv4
+	dump_ipv6_ipv4
+	dump_ipv4_ipv6
+	dump_ipv6_ipv6
+	flush
+"
+
+DATA_PATH_TESTS="
+	encap_params_ipv4_ipv4
+	encap_params_ipv6_ipv4
+	encap_params_ipv4_ipv6
+	encap_params_ipv6_ipv6
+	starg_exclude_ir_ipv4_ipv4
+	starg_exclude_ir_ipv6_ipv4
+	starg_exclude_ir_ipv4_ipv6
+	starg_exclude_ir_ipv6_ipv6
+	starg_include_ir_ipv4_ipv4
+	starg_include_ir_ipv6_ipv4
+	starg_include_ir_ipv4_ipv6
+	starg_include_ir_ipv6_ipv6
+	starg_exclude_p2mp_ipv4_ipv4
+	starg_exclude_p2mp_ipv6_ipv4
+	starg_exclude_p2mp_ipv4_ipv6
+	starg_exclude_p2mp_ipv6_ipv6
+	starg_include_p2mp_ipv4_ipv4
+	starg_include_p2mp_ipv6_ipv4
+	starg_include_p2mp_ipv4_ipv6
+	starg_include_p2mp_ipv6_ipv6
+	egress_vni_translation_ipv4_ipv4
+	egress_vni_translation_ipv6_ipv4
+	egress_vni_translation_ipv4_ipv6
+	egress_vni_translation_ipv6_ipv6
+	all_zeros_mdb_ipv4
+	all_zeros_mdb_ipv6
+	mdb_fdb_ipv4_ipv4
+	mdb_fdb_ipv6_ipv4
+	mdb_fdb_ipv4_ipv6
+	mdb_fdb_ipv6_ipv6
+	mdb_torture_ipv4_ipv4
+	mdb_torture_ipv6_ipv4
+	mdb_torture_ipv4_ipv6
+	mdb_torture_ipv6_ipv6
+"
+
+# All tests in this script. Can be overridden with -t option.
+TESTS="
+	$CONTROL_PATH_TESTS
+	$DATA_PATH_TESTS
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+################################################################################
+# Utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+tc_check_packets()
+{
+	local ns=$1; shift
+	local id=$1; shift
+	local handle=$1; shift
+	local count=$1; shift
+	local pkts
+
+	sleep 0.1
+	pkts=$(tc -n $ns -j -s filter show $id \
+		| jq ".[] | select(.options.handle == $handle) | \
+		.options.actions[0].stats.packets")
+	[[ $pkts == $count ]]
+}
+
+################################################################################
+# Setup
+
+setup_common_ns()
+{
+	local ns=$1; shift
+	local local_addr=$1; shift
+
+	ip netns exec $ns sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec $ns sysctl -qw net.ipv4.fib_multipath_use_neigh=1
+	ip netns exec $ns sysctl -qw net.ipv4.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1
+	ip netns exec $ns sysctl -qw net.ipv6.conf.all.accept_dad=0
+	ip netns exec $ns sysctl -qw net.ipv6.conf.default.accept_dad=0
+
+	ip -n $ns link set dev lo up
+	ip -n $ns address add $local_addr dev lo
+
+	ip -n $ns link set dev veth0 up
+
+	ip -n $ns link add name br0 up type bridge vlan_filtering 1 \
+		vlan_default_pvid 0 mcast_snooping 0
+
+	ip -n $ns link add link br0 name br0.10 up type vlan id 10
+	bridge -n $ns vlan add vid 10 dev br0 self
+
+	ip -n $ns link add link br0 name br0.20 up type vlan id 20
+	bridge -n $ns vlan add vid 20 dev br0 self
+
+	ip -n $ns link add link br0 name br0.4000 up type vlan id 4000
+	bridge -n $ns vlan add vid 4000 dev br0 self
+
+	ip -n $ns link add name vx0 up master br0 type vxlan \
+		local $local_addr dstport 4789 external vnifilter
+	bridge -n $ns link set dev vx0 vlan_tunnel on
+
+	bridge -n $ns vlan add vid 10 dev vx0
+	bridge -n $ns vlan add vid 10 dev vx0 tunnel_info id 10010
+	bridge -n $ns vni add vni 10010 dev vx0
+
+	bridge -n $ns vlan add vid 20 dev vx0
+	bridge -n $ns vlan add vid 20 dev vx0 tunnel_info id 10020
+	bridge -n $ns vni add vni 10020 dev vx0
+
+	bridge -n $ns vlan add vid 4000 dev vx0 pvid
+	bridge -n $ns vlan add vid 4000 dev vx0 tunnel_info id 14000
+	bridge -n $ns vni add vni 14000 dev vx0
+}
+
+setup_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local local_addr1=$1; shift
+	local local_addr2=$1; shift
+
+	ip link add name veth0 type veth peer name veth1
+	ip link set dev veth0 netns $ns1 name veth0
+	ip link set dev veth1 netns $ns2 name veth0
+
+	setup_common_ns $ns1 $local_addr1
+	setup_common_ns $ns2 $local_addr2
+}
+
+setup_v4()
+{
+	setup_ns ns1_v4 ns2_v4
+	setup_common $ns1_v4 $ns2_v4 192.0.2.1 192.0.2.2
+
+	ip -n $ns1_v4 address add 192.0.2.17/28 dev veth0
+	ip -n $ns2_v4 address add 192.0.2.18/28 dev veth0
+
+	ip -n $ns1_v4 route add default via 192.0.2.18
+	ip -n $ns2_v4 route add default via 192.0.2.17
+}
+
+cleanup_v4()
+{
+	cleanup_ns $ns2_v4 $ns1_v4
+}
+
+setup_v6()
+{
+	setup_ns ns1_v6 ns2_v6
+	setup_common $ns1_v6 $ns2_v6 2001:db8:1::1 2001:db8:1::2
+
+	ip -n $ns1_v6 address add 2001:db8:2::1/64 dev veth0 nodad
+	ip -n $ns2_v6 address add 2001:db8:2::2/64 dev veth0 nodad
+
+	ip -n $ns1_v6 route add default via 2001:db8:2::2
+	ip -n $ns2_v6 route add default via 2001:db8:2::1
+}
+
+cleanup_v6()
+{
+	cleanup_ns $ns2_v6 $ns1_v6
+}
+
+setup()
+{
+	set -e
+
+	setup_v4
+	setup_v6
+
+	sleep 5
+
+	set +e
+}
+
+cleanup()
+{
+	cleanup_v6 &> /dev/null
+	cleanup_v4 &> /dev/null
+}
+
+################################################################################
+# Tests - Control path
+
+basic_common()
+{
+	local ns1=$1; shift
+	local grp_key=$1; shift
+	local vtep_ip=$1; shift
+
+	# Test basic control path operations common to all MDB entry types.
+
+	# Basic add, replace and delete behavior.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	log_test $? 0 "MDB entry addition"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010"
+	log_test $? 0 "MDB entry presence after addition"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	log_test $? 0 "MDB entry replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010"
+	log_test $? 0 "MDB entry presence after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+	log_test $? 0 "MDB entry deletion"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010"
+	log_test $? 254 "MDB entry presence after deletion"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+	log_test $? 255 "Non-existent MDB entry deletion"
+
+	# Default protocol and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \"proto static\""
+	log_test $? 0 "MDB entry default protocol"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent proto 123 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \"proto 123\""
+	log_test $? 0 "MDB entry protocol replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+
+	# Default destination port and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \" dst_port \""
+	log_test $? 1 "MDB entry default destination port"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent dst $vtep_ip dst_port 1234 src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \"dst_port 1234\""
+	log_test $? 0 "MDB entry destination port replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+
+	# Default destination VNI and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \" vni \""
+	log_test $? 1 "MDB entry default destination VNI"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent dst $vtep_ip vni 1234 src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \"vni 1234\""
+	log_test $? 0 "MDB entry destination VNI replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+
+	# Default outgoing interface and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \" via \""
+	log_test $? 1 "MDB entry default outgoing interface"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010 via veth0"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 $grp_key src_vni 10010 | grep \"via veth0\""
+	log_test $? 0 "MDB entry outgoing interface replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+
+	# Common error cases.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port veth0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	log_test $? 255 "MDB entry with mismatch between device and port"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key temp dst $vtep_ip src_vni 10010"
+	log_test $? 255 "MDB entry with temp state"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent vid 10 dst $vtep_ip src_vni 10010"
+	log_test $? 255 "MDB entry with VLAN"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp 01:02:03:04:05:06 permanent dst $vtep_ip src_vni 10010"
+	log_test $? 255 "MDB entry MAC address"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent"
+	log_test $? 255 "MDB entry without extended parameters"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent proto 3 dst $vtep_ip src_vni 10010"
+	log_test $? 255 "MDB entry with an invalid protocol"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip vni $((2 ** 24)) src_vni 10010"
+	log_test $? 255 "MDB entry with an invalid destination VNI"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni $((2 ** 24))"
+	log_test $? 255 "MDB entry with an invalid source VNI"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent src_vni 10010"
+	log_test $? 255 "MDB entry without a remote destination IP"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 $grp_key permanent dst $vtep_ip src_vni 10010"
+	log_test $? 255 "Duplicate MDB entries"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 $grp_key dst $vtep_ip src_vni 10010"
+}
+
+basic_star_g_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp_key="grp 239.1.1.1"
+	local vtep_ip=198.51.100.100
+
+	echo
+	echo "Control path: Basic (*, G) operations - IPv4 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp_key="grp ff0e::1"
+	local vtep_ip=198.51.100.100
+
+	echo
+	echo "Control path: Basic (*, G) operations - IPv6 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp_key="grp 239.1.1.1"
+	local vtep_ip=2001:db8:1000::1
+
+	echo
+	echo "Control path: Basic (*, G) operations - IPv4 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_star_g_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp_key="grp ff0e::1"
+	local vtep_ip=2001:db8:1000::1
+
+	echo
+	echo "Control path: Basic (*, G) operations - IPv6 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp_key="grp 239.1.1.1 src 192.0.2.129"
+	local vtep_ip=198.51.100.100
+
+	echo
+	echo "Control path: Basic (S, G) operations - IPv4 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp_key="grp ff0e::1 src 2001:db8:100::1"
+	local vtep_ip=198.51.100.100
+
+	echo
+	echo "Control path: Basic (S, G) operations - IPv6 overlay / IPv4 underlay"
+	echo "---------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp_key="grp 239.1.1.1 src 192.0.2.129"
+	local vtep_ip=2001:db8:1000::1
+
+	echo
+	echo "Control path: Basic (S, G) operations - IPv4 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+basic_sg_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp_key="grp ff0e::1 src 2001:db8:100::1"
+	local vtep_ip=2001:db8:1000::1
+
+	echo
+	echo "Control path: Basic (S, G) operations - IPv6 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------------"
+
+	basic_common $ns1 "$grp_key" $vtep_ip
+}
+
+star_g_common()
+{
+	local ns1=$1; shift
+	local grp=$1; shift
+	local src1=$1; shift
+	local src2=$1; shift
+	local src3=$1; shift
+	local vtep_ip=$1; shift
+	local all_zeros_grp=$1; shift
+
+	# Test control path operations specific to (*, G) entries.
+
+	# Basic add, replace and delete behavior.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	log_test $? 0 "(*, G) MDB entry addition with source list"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010"
+	log_test $? 0 "(*, G) MDB entry presence after addition"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry presence after addition"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	log_test $? 0 "(*, G) MDB entry replacement with source list"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010"
+	log_test $? 0 "(*, G) MDB entry presence after replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry presence after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+	log_test $? 0 "(*, G) MDB entry deletion"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010"
+	log_test $? 254 "(*, G) MDB entry presence after deletion"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 254 "(S, G) MDB entry presence after deletion"
+
+	# Default filter mode and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep exclude"
+	log_test $? 0 "(*, G) MDB entry default filter mode"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode include source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep include"
+	log_test $? 0 "(*, G) MDB entry after replacing filter mode to \"include\""
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry after replacing filter mode to \"include\""
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep blocked"
+	log_test $? 1 "\"blocked\" flag after replacing filter mode to \"include\""
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep exclude"
+	log_test $? 0 "(*, G) MDB entry after replacing filter mode to \"exclude\""
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grep grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry after replacing filter mode to \"exclude\""
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep blocked"
+	log_test $? 0 "\"blocked\" flag after replacing filter mode to \"exclude\""
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Default source list and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep source_list"
+	log_test $? 1 "(*, G) MDB entry default source list"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1,$src2,$src3 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry of 1st source after replacing source list"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src2 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry of 2nd source after replacing source list"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src3 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry of 3rd source after replacing source list"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1,$src3 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry of 1st source after removing source"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src2 src_vni 10010"
+	log_test $? 254 "(S, G) MDB entry of 2nd source after removing source"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src3 src_vni 10010"
+	log_test $? 0 "(S, G) MDB entry of 3rd source after removing source"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Default protocol and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \"proto static\""
+	log_test $? 0 "(*, G) MDB entry default protocol"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \"proto static\""
+	log_test $? 0 "(S, G) MDB entry default protocol"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 proto bgp dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \"proto bgp\""
+	log_test $? 0 "(*, G) MDB entry protocol after replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \"proto bgp\""
+	log_test $? 0 "(S, G) MDB entry protocol after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Default destination port and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" dst_port \""
+	log_test $? 1 "(*, G) MDB entry default destination port"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" dst_port \""
+	log_test $? 1 "(S, G) MDB entry default destination port"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip dst_port 1234 src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" dst_port 1234 \""
+	log_test $? 0 "(*, G) MDB entry destination port after replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" dst_port 1234 \""
+	log_test $? 0 "(S, G) MDB entry destination port after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Default destination VNI and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" vni \""
+	log_test $? 1 "(*, G) MDB entry default destination VNI"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" vni \""
+	log_test $? 1 "(S, G) MDB entry default destination VNI"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip vni 1234 src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" vni 1234 \""
+	log_test $? 0 "(*, G) MDB entry destination VNI after replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" vni 1234 \""
+	log_test $? 0 "(S, G) MDB entry destination VNI after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Default outgoing interface and replacement.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" via \""
+	log_test $? 1 "(*, G) MDB entry default outgoing interface"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" via \""
+	log_test $? 1 "(S, G) MDB entry default outgoing interface"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $src1 dst $vtep_ip src_vni 10010 via veth0"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src_vni 10010 | grep \" via veth0 \""
+	log_test $? 0 "(*, G) MDB entry outgoing interface after replacement"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src1 src_vni 10010 | grep \" via veth0 \""
+	log_test $? 0 "(S, G) MDB entry outgoing interface after replacement"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep_ip src_vni 10010"
+
+	# Error cases.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp permanent filter_mode exclude dst $vtep_ip src_vni 10010"
+	log_test $? 255 "All-zeros group with filter mode"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp permanent source_list $src1 dst $vtep_ip src_vni 10010"
+	log_test $? 255 "All-zeros group with source list"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode include dst $vtep_ip src_vni 10010"
+	log_test $? 255 "(*, G) INCLUDE with an empty source list"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $grp dst $vtep_ip src_vni 10010"
+	log_test $? 255 "Invalid source in source list"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp permanent source_list $src1 dst $vtep_ip src_vni 10010"
+	log_test $? 255 "Source list without filter mode"
+}
+
+star_g_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp=239.1.1.1
+	local src1=192.0.2.129
+	local src2=192.0.2.130
+	local src3=192.0.2.131
+	local vtep_ip=198.51.100.100
+	local all_zeros_grp=0.0.0.0
+
+	echo
+	echo "Control path: (*, G) operations - IPv4 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------"
+
+	star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp=ff0e::1
+	local src1=2001:db8:100::1
+	local src2=2001:db8:100::2
+	local src3=2001:db8:100::3
+	local vtep_ip=198.51.100.100
+	local all_zeros_grp=::
+
+	echo
+	echo "Control path: (*, G) operations - IPv6 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------"
+
+	star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp=239.1.1.1
+	local src1=192.0.2.129
+	local src2=192.0.2.130
+	local src3=192.0.2.131
+	local vtep_ip=2001:db8:1000::1
+	local all_zeros_grp=0.0.0.0
+
+	echo
+	echo "Control path: (*, G) operations - IPv4 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------"
+
+	star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+star_g_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp=ff0e::1
+	local src1=2001:db8:100::1
+	local src2=2001:db8:100::2
+	local src3=2001:db8:100::3
+	local vtep_ip=2001:db8:1000::1
+	local all_zeros_grp=::
+
+	echo
+	echo "Control path: (*, G) operations - IPv6 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------"
+
+	star_g_common $ns1 $grp $src1 $src2 $src3 $vtep_ip $all_zeros_grp
+}
+
+sg_common()
+{
+	local ns1=$1; shift
+	local grp=$1; shift
+	local src=$1; shift
+	local vtep_ip=$1; shift
+	local all_zeros_grp=$1; shift
+
+	# Test control path operations specific to (S, G) entries.
+
+	# Default filter mode.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src permanent dst $vtep_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 -d -s mdb get dev vx0 grp $grp src $src src_vni 10010 | grep include"
+	log_test $? 0 "(S, G) MDB entry default filter mode"
+
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp src $src permanent dst $vtep_ip src_vni 10010"
+
+	# Error cases.
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src permanent filter_mode include dst $vtep_ip src_vni 10010"
+	log_test $? 255 "(S, G) with filter mode"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $src permanent source_list $src dst $vtep_ip src_vni 10010"
+	log_test $? 255 "(S, G) with source list"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp src $grp permanent dst $vtep_ip src_vni 10010"
+	log_test $? 255 "(S, G) with an invalid source list"
+
+	run_cmd "bridge -n $ns1 mdb add dev vx0 port vx0 grp $all_zeros_grp src $src permanent dst $vtep_ip src_vni 10010"
+	log_test $? 255 "All-zeros group with source"
+}
+
+sg_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp=239.1.1.1
+	local src=192.0.2.129
+	local vtep_ip=198.51.100.100
+	local all_zeros_grp=0.0.0.0
+
+	echo
+	echo "Control path: (S, G) operations - IPv4 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------"
+
+	sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local grp=ff0e::1
+	local src=2001:db8:100::1
+	local vtep_ip=198.51.100.100
+	local all_zeros_grp=::
+
+	echo
+	echo "Control path: (S, G) operations - IPv6 overlay / IPv4 underlay"
+	echo "--------------------------------------------------------------"
+
+	sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp=239.1.1.1
+	local src=192.0.2.129
+	local vtep_ip=2001:db8:1000::1
+	local all_zeros_grp=0.0.0.0
+
+	echo
+	echo "Control path: (S, G) operations - IPv4 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------"
+
+	sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+sg_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local grp=ff0e::1
+	local src=2001:db8:100::1
+	local vtep_ip=2001:db8:1000::1
+	local all_zeros_grp=::
+
+	echo
+	echo "Control path: (S, G) operations - IPv6 overlay / IPv6 underlay"
+	echo "--------------------------------------------------------------"
+
+	sg_common $ns1 $grp $src $vtep_ip $all_zeros_grp
+}
+
+ipv4_grps_get()
+{
+	local max_grps=$1; shift
+	local i
+
+	for i in $(seq 0 $((max_grps - 1))); do
+		echo "239.1.1.$i"
+	done
+}
+
+ipv6_grps_get()
+{
+	local max_grps=$1; shift
+	local i
+
+	for i in $(seq 0 $((max_grps - 1))); do
+		echo "ff0e::$(printf %x $i)"
+	done
+}
+
+dump_common()
+{
+	local ns1=$1; shift
+	local local_addr=$1; shift
+	local remote_prefix=$1; shift
+	local fn=$1; shift
+	local max_vxlan_devs=2
+	local max_remotes=64
+	local max_grps=256
+	local num_entries
+	local batch_file
+	local grp
+	local i j
+
+	# The kernel maintains various markers for the MDB dump. Add a test for
+	# large scale MDB dump to make sure that all the configured entries are
+	# dumped and that the markers are used correctly.
+
+	# Create net devices.
+	for i in $(seq 1 $max_vxlan_devs); do
+		ip -n $ns1 link add name vx-test${i} up type vxlan \
+			local $local_addr dstport 4789 external vnifilter
+	done
+
+	# Create batch file with MDB entries.
+	batch_file=$(mktemp)
+	for i in $(seq 1 $max_vxlan_devs); do
+		for j in $(seq 1 $max_remotes); do
+			for grp in $($fn $max_grps); do
+				echo "mdb add dev vx-test${i} port vx-test${i} grp $grp permanent dst ${remote_prefix}${j}" >> $batch_file
+			done
+		done
+	done
+
+	# Program the batch file and check for expected number of entries.
+	bridge -n $ns1 -b $batch_file
+	for i in $(seq 1 $max_vxlan_devs); do
+		num_entries=$(bridge -n $ns1 mdb show dev vx-test${i} | grep "permanent" | wc -l)
+		[[ $num_entries -eq $((max_grps * max_remotes)) ]]
+		log_test $? 0 "Large scale dump - VXLAN device #$i"
+	done
+
+	rm -rf $batch_file
+}
+
+dump_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local local_addr=192.0.2.1
+	local remote_prefix=198.51.100.
+	local fn=ipv4_grps_get
+
+	echo
+	echo "Control path: Large scale MDB dump - IPv4 overlay / IPv4 underlay"
+	echo "-----------------------------------------------------------------"
+
+	dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local local_addr=192.0.2.1
+	local remote_prefix=198.51.100.
+	local fn=ipv6_grps_get
+
+	echo
+	echo "Control path: Large scale MDB dump - IPv6 overlay / IPv4 underlay"
+	echo "-----------------------------------------------------------------"
+
+	dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local local_addr=2001:db8:1::1
+	local remote_prefix=2001:db8:1000::
+	local fn=ipv4_grps_get
+
+	echo
+	echo "Control path: Large scale MDB dump - IPv4 overlay / IPv6 underlay"
+	echo "-----------------------------------------------------------------"
+
+	dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+dump_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local local_addr=2001:db8:1::1
+	local remote_prefix=2001:db8:1000::
+	local fn=ipv6_grps_get
+
+	echo
+	echo "Control path: Large scale MDB dump - IPv6 overlay / IPv6 underlay"
+	echo "-----------------------------------------------------------------"
+
+	dump_common $ns1 $local_addr $remote_prefix $fn
+}
+
+flush()
+{
+	local num_entries
+
+	echo
+	echo "Control path: Flush"
+	echo "-------------------"
+
+	# Add entries with different attributes and check that they are all
+	# flushed when the flush command is given with no parameters.
+
+	# Different source VNI.
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.2 permanent dst 198.51.100.1 src_vni 10011"
+
+	# Different routing protocol.
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.3 permanent proto bgp dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.4 permanent proto zebra dst 198.51.100.1 src_vni 10010"
+
+	# Different destination IP.
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.5 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.6 permanent dst 198.51.100.2 src_vni 10010"
+
+	# Different destination port.
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.7 permanent dst 198.51.100.1 dst_port 11111 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.8 permanent dst 198.51.100.1 dst_port 22222 src_vni 10010"
+
+	# Different VNI.
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.9 permanent dst 198.51.100.1 vni 10010 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.10 permanent dst 198.51.100.1 vni 10020 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+	num_entries=$(bridge -n $ns1_v4 mdb show dev vx0 | wc -l)
+	[[ $num_entries -eq 0 ]]
+	log_test $? 0 "Flush all"
+
+	# Check that entries are flushed when port is specified as the VXLAN
+	# device and that an error is returned when port is specified as a
+	# different net device.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 port vx0"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+	log_test $? 254 "Flush by port - matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 port veth0"
+	log_test $? 255 "Flush by port - non-matching"
+
+	# Check that when flushing by source VNI only entries programmed with
+	# the specified source VNI are flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10011"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10011"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+	log_test $? 254 "Flush by source VNI - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10011"
+	log_test $? 0 "Flush by source VNI - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# Check that all entries are flushed when "permanent" is specified and
+	# that an error is returned when "nopermanent" is specified.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 permanent"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+	log_test $? 254 "Flush by \"permanent\" state"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 nopermanent"
+	log_test $? 255 "Flush by \"nopermanent\" state"
+
+	# Check that when flushing by routing protocol only entries programmed
+	# with the specified routing protocol are flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent proto bgp dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent proto zebra dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 proto bgp"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"proto bgp\""
+	log_test $? 1 "Flush by routing protocol - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"proto zebra\""
+	log_test $? 0 "Flush by routing protocol - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# Check that when flushing by destination IP only entries programmed
+	# with the specified destination IP are flushed and the rest are not.
+
+	# IPv4.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst 198.51.100.2"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+	log_test $? 1 "Flush by IPv4 destination IP - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+	log_test $? 0 "Flush by IPv4 destination IP - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# IPv6.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 2001:db8:1000::1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 2001:db8:1000::2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst 2001:db8:1000::2"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 2001:db8:1000::2"
+	log_test $? 1 "Flush by IPv6 destination IP - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 2001:db8:1000::1"
+	log_test $? 0 "Flush by IPv6 destination IP - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# Check that when flushing by UDP destination port only entries
+	# programmed with the specified port are flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 11111 dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 22222 dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst_port 11111"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"dst_port 11111\""
+	log_test $? 1 "Flush by UDP destination port - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"dst_port 22222\""
+	log_test $? 0 "Flush by UDP destination port - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# When not specifying a UDP destination port for an entry, traffic is
+	# encapsulated with the device's UDP destination port. Check that when
+	# flushing by the device's UDP destination port only entries programmed
+	# with this port are flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 22222 dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst_port 4789"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+	log_test $? 1 "Flush by device's UDP destination port - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+	log_test $? 0 "Flush by device's UDP destination port - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# Check that when flushing by destination VNI only entries programmed
+	# with the specified destination VNI are flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20010 dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20011 dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vni 20010"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \" vni 20010\""
+	log_test $? 1 "Flush by destination VNI - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \" vni 20011\""
+	log_test $? 0 "Flush by destination VNI - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# When not specifying a destination VNI for an entry, traffic is
+	# encapsulated with the source VNI. Check that when flushing by a
+	# destination VNI that is equal to the source VNI only such entries are
+	# flushed and the rest are not.
+
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+	run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20010 dst 198.51.100.2 src_vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vni 10010"
+
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+	log_test $? 1 "Flush by destination VNI equal to source VNI - matching"
+	run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+	log_test $? 0 "Flush by destination VNI equal to source VNI - non-matching"
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+	# Test that an error is returned when trying to flush using VLAN ID.
+
+	run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vid 10"
+	log_test $? 255 "Flush by VLAN ID"
+}
+
+################################################################################
+# Tests - Data path
+
+encap_params_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local plen=$1; shift
+	local enc_ethtype=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local src=$1; shift
+	local mz=$1; shift
+
+	# Test that packets forwarded by the VXLAN MDB are encapsulated with
+	# the correct parameters. Transmit packets from the first namespace and
+	# check that they hit the corresponding filters on the ingress of the
+	# second namespace.
+
+	run_cmd "tc -n $ns2 qdisc replace dev veth0 clsact"
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+	# Check destination IP.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep2_ip src_vni 10020"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $vtep1_ip action pass"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Destination IP - match"
+
+	run_cmd "ip netns exec $ns1 $mz br0.20 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Destination IP - no match"
+
+	run_cmd "tc -n $ns2 filter del dev vx0 ingress pref 1 handle 101 flower"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip src_vni 10020"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10010"
+
+	# Check destination port.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip dst_port 1111 src_vni 10020"
+
+	run_cmd "tc -n $ns2 filter replace dev veth0 ingress pref 1 handle 101 proto $enc_ethtype flower ip_proto udp dst_port 4789 action pass"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+	log_test $? 0 "Default destination port - match"
+
+	run_cmd "ip netns exec $ns1 $mz br0.20 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+	log_test $? 0 "Default destination port - no match"
+
+	run_cmd "tc -n $ns2 filter replace dev veth0 ingress pref 1 handle 101 proto $enc_ethtype flower ip_proto udp dst_port 1111 action pass"
+	run_cmd "ip netns exec $ns1 $mz br0.20 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+	log_test $? 0 "Non-default destination port - match"
+
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev veth0 ingress" 101 1
+	log_test $? 0 "Non-default destination port - no match"
+
+	run_cmd "tc -n $ns2 filter del dev veth0 ingress pref 1 handle 101 flower"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10020"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10010"
+
+	# Check default VNI.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip src_vni 10020"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_key_id 10010 action pass"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Default destination VNI - match"
+
+	run_cmd "ip netns exec $ns1 $mz br0.20 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Default destination VNI - no match"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip vni 10020 src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip vni 10010 src_vni 10020"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_key_id 10020 action pass"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Non-default destination VNI - match"
+
+	run_cmd "ip netns exec $ns1 $mz br0.20 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Non-default destination VNI - no match"
+
+	run_cmd "tc -n $ns2 filter del dev vx0 ingress pref 1 handle 101 flower"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10020"
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10010"
+}
+
+encap_params_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local enc_ethtype="ip"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: Encapsulation parameters - IPv4 overlay / IPv4 underlay"
+	echo "------------------------------------------------------------------"
+
+	encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+		$grp $grp_dmac $src "mausezahn"
+}
+
+encap_params_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local enc_ethtype="ip"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: Encapsulation parameters - IPv6 overlay / IPv4 underlay"
+	echo "------------------------------------------------------------------"
+
+	encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+		$grp $grp_dmac $src "mausezahn -6"
+}
+
+encap_params_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local enc_ethtype="ipv6"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: Encapsulation parameters - IPv4 overlay / IPv6 underlay"
+	echo "------------------------------------------------------------------"
+
+	encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+		$grp $grp_dmac $src "mausezahn"
+}
+
+encap_params_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local enc_ethtype="ipv6"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: Encapsulation parameters - IPv6 overlay / IPv6 underlay"
+	echo "------------------------------------------------------------------"
+
+	encap_params_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $enc_ethtype \
+		$grp $grp_dmac $src "mausezahn -6"
+}
+
+starg_exclude_ir_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local plen=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local valid_src=$1; shift
+	local invalid_src=$1; shift
+	local mz=$1; shift
+
+	# Install a (*, G) EXCLUDE MDB entry with one source and two remote
+	# VTEPs. Make sure that the source in the source list is not forwarded
+	# and that a source not in the list is forwarded. Remove one of the
+	# VTEPs from the entry and make sure that packets are only forwarded to
+	# the remaining VTEP.
+
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $vtep1_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102 proto all flower enc_dst_ip $vtep2_ip action pass"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $invalid_src dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $invalid_src dst $vtep2_ip src_vni 10010"
+
+	# Check that invalid source is not forwarded to any VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+	log_test $? 0 "Block excluded source - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+	log_test $? 0 "Block excluded source - second VTEP"
+
+	# Check that valid source is forwarded to both VTEPs.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Forward valid source - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Forward valid source - second VTEP"
+
+	# Remove second VTEP.
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip src_vni 10010"
+
+	# Check that invalid source is not forwarded to any VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Block excluded source after removal - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Block excluded source after removal - second VTEP"
+
+	# Check that valid source is forwarded to the remaining VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Forward valid source after removal - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Forward valid source after removal - second VTEP"
+}
+
+starg_exclude_ir_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - IR - IPv4 overlay / IPv4 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_ir_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - IR - IPv6 overlay / IPv4 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_ir_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - IR - IPv4 overlay / IPv6 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_ir_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - IR - IPv6 overlay / IPv6 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_exclude_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_ir_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local plen=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local valid_src=$1; shift
+	local invalid_src=$1; shift
+	local mz=$1; shift
+
+	# Install a (*, G) INCLUDE MDB entry with one source and two remote
+	# VTEPs. Make sure that the source in the source list is forwarded and
+	# that a source not in the list is not forwarded. Remove one of the
+	# VTEPs from the entry and make sure that packets are only forwarded to
+	# the remaining VTEP.
+
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $vtep1_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102 proto all flower enc_dst_ip $vtep2_ip action pass"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode include source_list $valid_src dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode include source_list $valid_src dst $vtep2_ip src_vni 10010"
+
+	# Check that invalid source is not forwarded to any VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+	log_test $? 0 "Block excluded source - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+	log_test $? 0 "Block excluded source - second VTEP"
+
+	# Check that valid source is forwarded to both VTEPs.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Forward valid source - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Forward valid source - second VTEP"
+
+	# Remove second VTEP.
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep2_ip src_vni 10010"
+
+	# Check that invalid source is not forwarded to any VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Block excluded source after removal - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Block excluded source after removal - second VTEP"
+
+	# Check that valid source is forwarded to the remaining VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Forward valid source after removal - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Forward valid source after removal - second VTEP"
+}
+
+starg_include_ir_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) INCLUDE - IR - IPv4 overlay / IPv4 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_ir_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) INCLUDE - IR - IPv6 overlay / IPv4 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_ir_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) INCLUDE - IR - IPv4 overlay / IPv6 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn"
+}
+
+starg_include_ir_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) INCLUDE - IR - IPv6 overlay / IPv6 underlay"
+	echo "-------------------------------------------------------------"
+
+	starg_include_ir_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $grp \
+		$grp_dmac $valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_p2mp_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local mcast_grp=$1; shift
+	local plen=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local valid_src=$1; shift
+	local invalid_src=$1; shift
+	local mz=$1; shift
+
+	# Install a (*, G) EXCLUDE MDB entry with one source and one multicast
+	# group to which packets are sent. Make sure that the source in the
+	# source list is not forwarded and that a source not in the list is
+	# forwarded.
+
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0 autojoin"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $mcast_grp action pass"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode exclude source_list $invalid_src dst $mcast_grp src_vni 10010 via veth0"
+
+	# Check that invalid source is not forwarded.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+	log_test $? 0 "Block excluded source"
+
+	# Check that valid source is forwarded.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Forward valid source"
+
+	# Remove the VTEP from the multicast group.
+	run_cmd "ip -n $ns2 address del $mcast_grp/$plen dev veth0"
+
+	# Check that valid source is not received anymore.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Receive of valid source after removal from group"
+}
+
+starg_exclude_p2mp_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - P2MP - IPv4 overlay / IPv4 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_p2mp_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - P2MP - IPv6 overlay / IPv4 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn -6"
+}
+
+starg_exclude_p2mp_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - P2MP - IPv4 overlay / IPv6 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn"
+}
+
+starg_exclude_p2mp_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) EXCLUDE - P2MP - IPv6 overlay / IPv6 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_exclude_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_p2mp_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local mcast_grp=$1; shift
+	local plen=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local valid_src=$1; shift
+	local invalid_src=$1; shift
+	local mz=$1; shift
+
+	# Install a (*, G) INCLUDE MDB entry with one source and one multicast
+	# group to which packets are sent. Make sure that the source in the
+	# source list is forwarded and that a source not in the list is not
+	# forwarded.
+
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0 autojoin"
+
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $mcast_grp action pass"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent filter_mode include source_list $valid_src dst $mcast_grp src_vni 10010 via veth0"
+
+	# Check that invalid source is not forwarded.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $invalid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+	log_test $? 0 "Block excluded source"
+
+	# Check that valid source is forwarded.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Forward valid source"
+
+	# Remove the VTEP from the multicast group.
+	run_cmd "ip -n $ns2 address del $mcast_grp/$plen dev veth0"
+
+	# Check that valid source is not received anymore.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $valid_src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Receive of valid source after removal from group"
+}
+
+starg_include_p2mp_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) INCLUDE - P2MP - IPv4 overlay / IPv4 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn"
+}
+
+starg_include_p2mp_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) INCLUDE - P2MP - IPv6 overlay / IPv4 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn -6"
+}
+
+starg_include_p2mp_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local valid_src=192.0.2.129
+	local invalid_src=192.0.2.145
+
+	echo
+	echo "Data path: (*, G) INCLUDE - P2MP - IPv4 overlay / IPv6 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn"
+}
+
+starg_include_p2mp_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local valid_src=2001:db8:100::1
+	local invalid_src=2001:db8:200::1
+
+	echo
+	echo "Data path: (*, G) INCLUDE - P2MP - IPv6 overlay / IPv6 underlay"
+	echo "---------------------------------------------------------------"
+
+	starg_include_p2mp_common $ns1 $ns2 $mcast_grp $plen $grp $grp_dmac \
+		$valid_src $invalid_src "mausezahn -6"
+}
+
+egress_vni_translation_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local mcast_grp=$1; shift
+	local plen=$1; shift
+	local proto=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local src=$1; shift
+	local mz=$1; shift
+
+	# When P2MP tunnels are used with optimized inter-subnet multicast
+	# (OISM) [1], the ingress VTEP does not perform VNI translation and
+	# uses the VNI of the source broadcast domain (BD). If the egress VTEP
+	# is a member in the source BD, then no VNI translation is needed.
+	# Otherwise, the egress VTEP needs to translate the VNI to the
+	# supplementary broadcast domain (SBD) VNI, which is usually the L3VNI.
+	#
+	# In this test, remove the VTEP in the second namespace from VLAN 10
+	# (VNI 10010) and make sure that a packet sent from this VLAN on the
+	# first VTEP is received by the SVI corresponding to the L3VNI (14000 /
+	# VLAN 4000) on the second VTEP.
+	#
+	# The second VTEP will be able to decapsulate the packet with VNI 10010
+	# because this VNI is configured on its shared VXLAN device. Later,
+	# when ingressing the bridge, the VNI to VLAN lookup will fail because
+	# the VTEP is not a member in VLAN 10, which will cause the packet to
+	# be tagged with VLAN 4000 since it is configured as PVID.
+	#
+	# [1] https://datatracker.ietf.org/doc/html/draft-ietf-bess-evpn-irb-mcast
+
+	run_cmd "tc -n $ns2 qdisc replace dev br0.4000 clsact"
+	run_cmd "ip -n $ns2 address replace $mcast_grp/$plen dev veth0 autojoin"
+	run_cmd "tc -n $ns2 filter replace dev br0.4000 ingress pref 1 handle 101 proto $proto flower src_ip $src dst_ip $grp action pass"
+
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp src $src permanent dst $mcast_grp src_vni 10010 via veth0"
+
+	# Remove the second VTEP from VLAN 10.
+	run_cmd "bridge -n $ns2 vlan del vid 10 dev vx0"
+
+	# Make sure that packets sent from the first VTEP over VLAN 10 are
+	# received by the SVI corresponding to the L3VNI (14000 / VLAN 4000) on
+	# the second VTEP, since it is configured as PVID.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev br0.4000 ingress" 101 1
+	log_test $? 0 "Egress VNI translation - PVID configured"
+
+	# Remove PVID flag from VLAN 4000 on the second VTEP and make sure
+	# packets are no longer received by the SVI interface.
+	run_cmd "bridge -n $ns2 vlan add vid 4000 dev vx0"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev br0.4000 ingress" 101 1
+	log_test $? 0 "Egress VNI translation - no PVID configured"
+
+	# Reconfigure the PVID and make sure packets are received again.
+	run_cmd "bridge -n $ns2 vlan add vid 4000 dev vx0 pvid"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev br0.4000 ingress" 101 2
+	log_test $? 0 "Egress VNI translation - PVID reconfigured"
+}
+
+egress_vni_translation_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local proto="ipv4"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: Egress VNI translation - IPv4 overlay / IPv4 underlay"
+	echo "----------------------------------------------------------------"
+
+	egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+		$grp_dmac $src "mausezahn"
+}
+
+egress_vni_translation_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local mcast_grp=238.1.1.1
+	local plen=32
+	local proto="ipv6"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: Egress VNI translation - IPv6 overlay / IPv4 underlay"
+	echo "----------------------------------------------------------------"
+
+	egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+		$grp_dmac $src "mausezahn -6"
+}
+
+egress_vni_translation_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local proto="ipv4"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: Egress VNI translation - IPv4 overlay / IPv6 underlay"
+	echo "----------------------------------------------------------------"
+
+	egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+		$grp_dmac $src "mausezahn"
+}
+
+egress_vni_translation_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local mcast_grp=ff0e::2
+	local plen=128
+	local proto="ipv6"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: Egress VNI translation - IPv6 overlay / IPv6 underlay"
+	echo "----------------------------------------------------------------"
+
+	egress_vni_translation_common $ns1 $ns2 $mcast_grp $plen $proto $grp \
+		$grp_dmac $src "mausezahn -6"
+}
+
+all_zeros_mdb_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local vtep3_ip=$1; shift
+	local vtep4_ip=$1; shift
+	local plen=$1; shift
+	local ipv4_grp=239.1.1.1
+	local ipv4_grp_dmac=01:00:5e:01:01:01
+	local ipv4_unreg_grp=239.2.2.2
+	local ipv4_unreg_grp_dmac=01:00:5e:02:02:02
+	local ipv4_ll_grp=224.0.0.100
+	local ipv4_ll_grp_dmac=01:00:5e:00:00:64
+	local ipv4_src=192.0.2.129
+	local ipv6_grp=ff0e::1
+	local ipv6_grp_dmac=33:33:00:00:00:01
+	local ipv6_unreg_grp=ff0e::2
+	local ipv6_unreg_grp_dmac=33:33:00:00:00:02
+	local ipv6_ll_grp=ff02::1
+	local ipv6_ll_grp_dmac=33:33:00:00:00:01
+	local ipv6_src=2001:db8:100::1
+
+	# Install all-zeros (catchall) MDB entries for IPv4 and IPv6 traffic
+	# and make sure they only forward unregistered IP multicast traffic
+	# which is not link-local. Also make sure that each entry only forwards
+	# traffic from the matching address family.
+
+	# Associate two different VTEPs with one all-zeros MDB entry: Two with
+	# the IPv4 entry (0.0.0.0) and another two with the IPv6 one (::).
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp 0.0.0.0 permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp 0.0.0.0 permanent dst $vtep2_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp :: permanent dst $vtep3_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp :: permanent dst $vtep4_ip src_vni 10010"
+
+	# Associate one VTEP from each set with a regular MDB entry: One with
+	# an IPv4 entry and another with an IPv6 one.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $ipv4_grp permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $ipv6_grp permanent dst $vtep3_ip src_vni 10010"
+
+	# Add filters to match on decapsulated traffic in the second namespace.
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $vtep1_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102 proto all flower enc_dst_ip $vtep2_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 103 proto all flower enc_dst_ip $vtep3_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 104 proto all flower enc_dst_ip $vtep4_ip action pass"
+
+	# Configure the VTEP addresses in the second namespace to enable
+	# decapsulation.
+	run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep3_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep4_ip/$plen dev lo"
+
+	# Send registered IPv4 multicast and make sure it only arrives to the
+	# first VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b $ipv4_grp_dmac -A $ipv4_src -B $ipv4_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Registered IPv4 multicast - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+	log_test $? 0 "Registered IPv4 multicast - second VTEP"
+
+	# Send unregistered IPv4 multicast that is not link-local and make sure
+	# it arrives to the first and second VTEPs.
+	run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b $ipv4_unreg_grp_dmac -A $ipv4_src -B $ipv4_unreg_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Unregistered IPv4 multicast - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Unregistered IPv4 multicast - second VTEP"
+
+	# Send IPv4 link-local multicast traffic and make sure it does not
+	# arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b $ipv4_ll_grp_dmac -A $ipv4_src -B $ipv4_ll_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Link-local IPv4 multicast - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Link-local IPv4 multicast - second VTEP"
+
+	# Send registered IPv4 multicast using a unicast MAC address and make
+	# sure it does not arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b 00:11:22:33:44:55 -A $ipv4_src -B $ipv4_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Registered IPv4 multicast with a unicast MAC - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Registered IPv4 multicast with a unicast MAC - second VTEP"
+
+	# Send registered IPv4 multicast using a broadcast MAC address and make
+	# sure it does not arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn br0.10 -a own -b bcast -A $ipv4_src -B $ipv4_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 2
+	log_test $? 0 "Registered IPv4 multicast with a broadcast MAC - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Registered IPv4 multicast with a broadcast MAC - second VTEP"
+
+	# Make sure IPv4 traffic did not reach the VTEPs associated with
+	# IPv6 entries.
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 0
+	log_test $? 0 "IPv4 traffic - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 0
+	log_test $? 0 "IPv4 traffic - fourth VTEP"
+
+	# Reset IPv4 filters before testing IPv6 traffic.
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto all flower enc_dst_ip $vtep1_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102 proto all flower enc_dst_ip $vtep2_ip action pass"
+
+	# Send registered IPv6 multicast and make sure it only arrives to the
+	# third VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b $ipv6_grp_dmac -A $ipv6_src -B $ipv6_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 1
+	log_test $? 0 "Registered IPv6 multicast - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 0
+	log_test $? 0 "Registered IPv6 multicast - fourth VTEP"
+
+	# Send unregistered IPv6 multicast that is not link-local and make sure
+	# it arrives to the third and fourth VTEPs.
+	run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b $ipv6_unreg_grp_dmac -A $ipv6_src -B $ipv6_unreg_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+	log_test $? 0 "Unregistered IPv6 multicast - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+	log_test $? 0 "Unregistered IPv6 multicast - fourth VTEP"
+
+	# Send IPv6 link-local multicast traffic and make sure it does not
+	# arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b $ipv6_ll_grp_dmac -A $ipv6_src -B $ipv6_ll_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+	log_test $? 0 "Link-local IPv6 multicast - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+	log_test $? 0 "Link-local IPv6 multicast - fourth VTEP"
+
+	# Send registered IPv6 multicast using a unicast MAC address and make
+	# sure it does not arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b 00:11:22:33:44:55 -A $ipv6_src -B $ipv6_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+	log_test $? 0 "Registered IPv6 multicast with a unicast MAC - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+	log_test $? 0 "Registered IPv6 multicast with a unicast MAC - fourth VTEP"
+
+	# Send registered IPv6 multicast using a broadcast MAC address and make
+	# sure it does not arrive to any VTEP.
+	run_cmd "ip netns exec $ns1 mausezahn -6 br0.10 -a own -b bcast -A $ipv6_src -B $ipv6_grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 103 2
+	log_test $? 0 "Registered IPv6 multicast with a broadcast MAC - third VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 104 1
+	log_test $? 0 "Registered IPv6 multicast with a broadcast MAC - fourth VTEP"
+
+	# Make sure IPv6 traffic did not reach the VTEPs associated with
+	# IPv4 entries.
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 0
+	log_test $? 0 "IPv6 traffic - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+	log_test $? 0 "IPv6 traffic - second VTEP"
+}
+
+all_zeros_mdb_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.101
+	local vtep2_ip=198.51.100.102
+	local vtep3_ip=198.51.100.103
+	local vtep4_ip=198.51.100.104
+	local plen=32
+
+	echo
+	echo "Data path: All-zeros MDB entry - IPv4 underlay"
+	echo "----------------------------------------------"
+
+	all_zeros_mdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $vtep3_ip \
+		$vtep4_ip $plen
+}
+
+all_zeros_mdb_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local vtep3_ip=2001:db8:3000::1
+	local vtep4_ip=2001:db8:4000::1
+	local plen=128
+
+	echo
+	echo "Data path: All-zeros MDB entry - IPv6 underlay"
+	echo "----------------------------------------------"
+
+	all_zeros_mdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $vtep3_ip \
+		$vtep4_ip $plen
+}
+
+mdb_fdb_common()
+{
+	local ns1=$1; shift
+	local ns2=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local plen=$1; shift
+	local proto=$1; shift
+	local grp=$1; shift
+	local grp_dmac=$1; shift
+	local src=$1; shift
+	local mz=$1; shift
+
+	# Install an MDB entry and an FDB entry and make sure that the FDB
+	# entry only forwards traffic that was not forwarded by the MDB.
+
+	# Associate the MDB entry with one VTEP and the FDB entry with another
+	# VTEP.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 fdb add 00:00:00:00:00:00 dev vx0 self static dst $vtep2_ip src_vni 10010"
+
+	# Add filters to match on decapsulated traffic in the second namespace.
+	run_cmd "tc -n $ns2 qdisc replace dev vx0 clsact"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 101 proto $proto flower ip_proto udp dst_port 54321 enc_dst_ip $vtep1_ip action pass"
+	run_cmd "tc -n $ns2 filter replace dev vx0 ingress pref 1 handle 102 proto $proto flower ip_proto udp dst_port 54321 enc_dst_ip $vtep2_ip action pass"
+
+	# Configure the VTEP addresses in the second namespace to enable
+	# decapsulation.
+	run_cmd "ip -n $ns2 address replace $vtep1_ip/$plen dev lo"
+	run_cmd "ip -n $ns2 address replace $vtep2_ip/$plen dev lo"
+
+	# Send IP multicast traffic and make sure it is forwarded by the MDB
+	# and only arrives to the first VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "IP multicast - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 0
+	log_test $? 0 "IP multicast - second VTEP"
+
+	# Send broadcast traffic and make sure it is forwarded by the FDB and
+	# only arrives to the second VTEP.
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b bcast -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "Broadcast - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 1
+	log_test $? 0 "Broadcast - second VTEP"
+
+	# Remove the MDB entry and make sure that IP multicast is now forwarded
+	# by the FDB to the second VTEP.
+	run_cmd "bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp dst $vtep1_ip src_vni 10010"
+	run_cmd "ip netns exec $ns1 $mz br0.10 -a own -b $grp_dmac -A $src -B $grp -t udp sp=12345,dp=54321 -p 100 -c 1 -q"
+	tc_check_packets "$ns2" "dev vx0 ingress" 101 1
+	log_test $? 0 "IP multicast after removal - first VTEP"
+	tc_check_packets "$ns2" "dev vx0 ingress" 102 2
+	log_test $? 0 "IP multicast after removal - second VTEP"
+}
+
+mdb_fdb_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local proto="ipv4"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: MDB with FDB - IPv4 overlay / IPv4 underlay"
+	echo "------------------------------------------------------"
+
+	mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp \
+		$grp_dmac $src "mausezahn"
+}
+
+mdb_fdb_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local ns2=$ns2_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local plen=32
+	local proto="ipv6"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: MDB with FDB - IPv6 overlay / IPv4 underlay"
+	echo "------------------------------------------------------"
+
+	mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp \
+		$grp_dmac $src "mausezahn -6"
+}
+
+mdb_fdb_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local proto="ipv4"
+	local grp=239.1.1.1
+	local grp_dmac=01:00:5e:01:01:01
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: MDB with FDB - IPv4 overlay / IPv6 underlay"
+	echo "------------------------------------------------------"
+
+	mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp \
+		$grp_dmac $src "mausezahn"
+}
+
+mdb_fdb_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local ns2=$ns2_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local plen=128
+	local proto="ipv6"
+	local grp=ff0e::1
+	local grp_dmac=33:33:00:00:00:01
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: MDB with FDB - IPv6 overlay / IPv6 underlay"
+	echo "------------------------------------------------------"
+
+	mdb_fdb_common $ns1 $ns2 $vtep1_ip $vtep2_ip $plen $proto $grp \
+		$grp_dmac $src "mausezahn -6"
+}
+
+mdb_grp1_loop()
+{
+	local ns1=$1; shift
+	local vtep1_ip=$1; shift
+	local grp1=$1; shift
+
+	while true; do
+		bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp1 dst $vtep1_ip src_vni 10010
+		bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp1 permanent dst $vtep1_ip src_vni 10010
+	done >/dev/null 2>&1
+}
+
+mdb_grp2_loop()
+{
+	local ns1=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local grp2=$1; shift
+
+	while true; do
+		bridge -n $ns1 mdb del dev vx0 port vx0 grp $grp2 dst $vtep1_ip src_vni 10010
+		bridge -n $ns1 mdb add dev vx0 port vx0 grp $grp2 permanent dst $vtep1_ip src_vni 10010
+		bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent dst $vtep2_ip src_vni 10010
+	done >/dev/null 2>&1
+}
+
+mdb_torture_common()
+{
+	local ns1=$1; shift
+	local vtep1_ip=$1; shift
+	local vtep2_ip=$1; shift
+	local grp1=$1; shift
+	local grp1_dmac=$1; shift
+	local grp2=$1; shift
+	local grp2_dmac=$1; shift
+	local src=$1; shift
+	local mz=$1; shift
+	local pid1
+	local pid2
+	local pid3
+	local pid4
+
+	# Continuously send two streams that are forwarded by two different MDB
+	# entries. The first entry will be added and deleted in a loop. This
+	# allows us to test that the data path does not use freed MDB entry
+	# memory. The second entry will have two remotes, one that is added and
+	# deleted in a loop and another that is replaced in a loop. This allows
+	# us to test that the data path does not use freed remote entry memory.
+	# The test is considered successful if nothing crashed.
+
+	# Create the MDB entries that will be continuously deleted / replaced.
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp1 permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent dst $vtep1_ip src_vni 10010"
+	run_cmd "bridge -n $ns1 mdb replace dev vx0 port vx0 grp $grp2 permanent dst $vtep2_ip src_vni 10010"
+
+	mdb_grp1_loop $ns1 $vtep1_ip $grp1 &
+	pid1=$!
+	mdb_grp2_loop $ns1 $vtep1_ip $vtep2_ip $grp2 &
+	pid2=$!
+	ip netns exec $ns1 $mz br0.10 -a own -b $grp1_dmac -A $src -B $grp1 -t udp sp=12345,dp=54321 -p 100 -c 0 -q &
+	pid3=$!
+	ip netns exec $ns1 $mz br0.10 -a own -b $grp2_dmac -A $src -B $grp2 -t udp sp=12345,dp=54321 -p 100 -c 0 -q &
+	pid4=$!
+
+	sleep 30
+	kill -9 $pid1 $pid2 $pid3 $pid4
+	wait $pid1 $pid2 $pid3 $pid4 2>/dev/null
+
+	log_test 0 0 "Torture test"
+}
+
+mdb_torture_ipv4_ipv4()
+{
+	local ns1=$ns1_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local grp1=239.1.1.1
+	local grp1_dmac=01:00:5e:01:01:01
+	local grp2=239.2.2.2
+	local grp2_dmac=01:00:5e:02:02:02
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: MDB torture test - IPv4 overlay / IPv4 underlay"
+	echo "----------------------------------------------------------"
+
+	mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp1_dmac $grp2 \
+		$grp2_dmac $src "mausezahn"
+}
+
+mdb_torture_ipv6_ipv4()
+{
+	local ns1=$ns1_v4
+	local vtep1_ip=198.51.100.100
+	local vtep2_ip=198.51.100.200
+	local grp1=ff0e::1
+	local grp1_dmac=33:33:00:00:00:01
+	local grp2=ff0e::2
+	local grp2_dmac=33:33:00:00:00:02
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: MDB torture test - IPv6 overlay / IPv4 underlay"
+	echo "----------------------------------------------------------"
+
+	mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp1_dmac $grp2 \
+		$grp2_dmac $src "mausezahn -6"
+}
+
+mdb_torture_ipv4_ipv6()
+{
+	local ns1=$ns1_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local grp1=239.1.1.1
+	local grp1_dmac=01:00:5e:01:01:01
+	local grp2=239.2.2.2
+	local grp2_dmac=01:00:5e:02:02:02
+	local src=192.0.2.129
+
+	echo
+	echo "Data path: MDB torture test - IPv4 overlay / IPv6 underlay"
+	echo "----------------------------------------------------------"
+
+	mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp1_dmac $grp2 \
+		$grp2_dmac $src "mausezahn"
+}
+
+mdb_torture_ipv6_ipv6()
+{
+	local ns1=$ns1_v6
+	local vtep1_ip=2001:db8:1000::1
+	local vtep2_ip=2001:db8:2000::1
+	local grp1=ff0e::1
+	local grp1_dmac=33:33:00:00:00:01
+	local grp2=ff0e::2
+	local grp2_dmac=33:33:00:00:00:02
+	local src=2001:db8:100::1
+
+	echo
+	echo "Data path: MDB torture test - IPv6 overlay / IPv6 underlay"
+	echo "----------------------------------------------------------"
+
+	mdb_torture_common $ns1 $vtep1_ip $vtep2_ip $grp1 $grp1_dmac $grp2 \
+		$grp2_dmac $src "mausezahn -6"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -c          Control path tests only
+        -d          Data path tests only
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+trap cleanup EXIT
+
+while getopts ":t:cdpPvh" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		c) TESTS=${CONTROL_PATH_TESTS};;
+		d) TESTS=${DATA_PATH_TESTS};;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# Make sure we don't pause twice.
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v bridge)" ]; then
+	echo "SKIP: Could not run test without bridge tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+	echo "SKIP: Could not run test without jq tool"
+	exit $ksft_skip
+fi
+
+bridge mdb help 2>&1 | grep -q "flush"
+if [ $? -ne 0 ]; then
+   echo "SKIP: iproute2 bridge too old, missing VXLAN MDB flush support"
+   exit $ksft_skip
+fi
+
+# Start clean.
+cleanup
+
+for t in $TESTS
+do
+	setup; $t; cleanup;
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/test_vxlan_nh.sh b/tools/testing/selftests/net/test_vxlan_nh.sh
new file mode 100755
index 000000000000..20f3369f776b
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_nh.sh
@@ -0,0 +1,223 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+TESTS="
+	basic_tx_ipv4
+	basic_tx_ipv6
+	learning
+	proxy_ipv4
+	proxy_ipv6
+"
+VERBOSE=0
+
+################################################################################
+# Utilities
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+		stderr=
+	fi
+
+	out=$(eval "$cmd" "$stderr")
+	rc=$?
+	if [ "$VERBOSE" -eq 1 ] && [ -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+################################################################################
+# Cleanup
+
+exit_cleanup_all()
+{
+	cleanup_all_ns
+	exit "${EXIT_STATUS}"
+}
+
+################################################################################
+# Tests
+
+nh_stats_get()
+{
+	ip -n "$ns1" -s -j nexthop show id 10 | jq ".[][\"group_stats\"][][\"packets\"]"
+}
+
+tc_stats_get()
+{
+	tc_rule_handle_stats_get "dev dummy1 egress" 101 ".packets" "-n $ns1"
+}
+
+basic_tx_common()
+{
+	local af_str=$1; shift
+	local proto=$1; shift
+	local local_addr=$1; shift
+	local plen=$1; shift
+	local remote_addr=$1; shift
+
+	RET=0
+
+	# Test basic Tx functionality. Check that stats are incremented on
+	# both the FDB nexthop group and the egress device.
+
+	run_cmd "ip -n $ns1 link add name dummy1 up type dummy"
+	run_cmd "ip -n $ns1 route add $remote_addr/$plen dev dummy1"
+	run_cmd "tc -n $ns1 qdisc add dev dummy1 clsact"
+	run_cmd "tc -n $ns1 filter add dev dummy1 egress proto $proto pref 1 handle 101 flower ip_proto udp dst_ip $remote_addr dst_port 4789 action pass"
+
+	run_cmd "ip -n $ns1 address add $local_addr/$plen dev lo"
+
+	run_cmd "ip -n $ns1 nexthop add id 1 via $remote_addr fdb"
+	run_cmd "ip -n $ns1 nexthop add id 10 group 1 fdb"
+
+	run_cmd "ip -n $ns1 link add name vx0 up type vxlan id 10010 local $local_addr dstport 4789"
+	run_cmd "bridge -n $ns1 fdb add 00:11:22:33:44:55 dev vx0 self static nhid 10"
+
+	run_cmd "ip netns exec $ns1 mausezahn vx0 -a own -b 00:11:22:33:44:55 -c 1 -q"
+
+	busywait "$BUSYWAIT_TIMEOUT" until_counter_is "== 1" nh_stats_get > /dev/null
+	check_err $? "FDB nexthop group stats did not increase"
+
+	busywait "$BUSYWAIT_TIMEOUT" until_counter_is "== 1" tc_stats_get > /dev/null
+	check_err $? "tc filter stats did not increase"
+
+	log_test "VXLAN FDB nexthop: $af_str basic Tx"
+}
+
+basic_tx_ipv4()
+{
+	basic_tx_common "IPv4" ipv4 192.0.2.1 32 192.0.2.2
+}
+
+basic_tx_ipv6()
+{
+	basic_tx_common "IPv6" ipv6 2001:db8:1::1 128 2001:db8:1::2
+}
+
+learning()
+{
+	RET=0
+
+	# When learning is enabled on the VXLAN device, an incoming packet
+	# might try to refresh an FDB entry that points to an FDB nexthop group
+	# instead of an ordinary remote destination. Check that the kernel does
+	# not crash in this situation.
+
+	run_cmd "ip -n $ns1 address add 192.0.2.1/32 dev lo"
+	run_cmd "ip -n $ns1 address add 192.0.2.2/32 dev lo"
+
+	run_cmd "ip -n $ns1 nexthop add id 1 via 192.0.2.3 fdb"
+	run_cmd "ip -n $ns1 nexthop add id 10 group 1 fdb"
+
+	run_cmd "ip -n $ns1 link add name vx0 up type vxlan id 10010 local 192.0.2.1 dstport 12345 localbypass"
+	run_cmd "ip -n $ns1 link add name vx1 up type vxlan id 10020 local 192.0.2.2 dstport 54321 learning"
+
+	run_cmd "bridge -n $ns1 fdb add 00:11:22:33:44:55 dev vx0 self static dst 192.0.2.2 port 54321 vni 10020"
+	run_cmd "bridge -n $ns1 fdb add 00:aa:bb:cc:dd:ee dev vx1 self static nhid 10"
+
+	run_cmd "ip netns exec $ns1 mausezahn vx0 -a 00:aa:bb:cc:dd:ee -b 00:11:22:33:44:55 -c 1 -q"
+
+	log_test "VXLAN FDB nexthop: learning"
+}
+
+proxy_common()
+{
+	local af_str=$1; shift
+	local local_addr=$1; shift
+	local plen=$1; shift
+	local remote_addr=$1; shift
+	local neigh_addr=$1; shift
+	local ping_cmd=$1; shift
+
+	RET=0
+
+	# When the "proxy" option is enabled on the VXLAN device, the device
+	# will suppress ARP requests and IPv6 Neighbor Solicitation messages if
+	# it is able to reply on behalf of the remote host. That is, if a
+	# matching and valid neighbor entry is configured on the VXLAN device
+	# whose MAC address is not behind the "any" remote (0.0.0.0 / ::). The
+	# FDB entry for the neighbor's MAC address might point to an FDB
+	# nexthop group instead of an ordinary remote destination. Check that
+	# the kernel does not crash in this situation.
+
+	run_cmd "ip -n $ns1 address add $local_addr/$plen dev lo"
+
+	run_cmd "ip -n $ns1 nexthop add id 1 via $remote_addr fdb"
+	run_cmd "ip -n $ns1 nexthop add id 10 group 1 fdb"
+
+	run_cmd "ip -n $ns1 link add name vx0 up type vxlan id 10010 local $local_addr dstport 4789 proxy"
+
+	run_cmd "ip -n $ns1 neigh add $neigh_addr lladdr 00:11:22:33:44:55 nud perm dev vx0"
+
+	run_cmd "bridge -n $ns1 fdb add 00:11:22:33:44:55 dev vx0 self static nhid 10"
+
+	run_cmd "ip netns exec $ns1 $ping_cmd"
+
+	log_test "VXLAN FDB nexthop: $af_str proxy"
+}
+
+proxy_ipv4()
+{
+	proxy_common "IPv4" 192.0.2.1 32 192.0.2.2 192.0.2.3 \
+		"arping -b -c 1 -s 192.0.2.1 -I vx0 192.0.2.3"
+}
+
+proxy_ipv6()
+{
+	proxy_common "IPv6" 2001:db8:1::1 128 2001:db8:1::2 2001:db8:1::3 \
+		"ndisc6 -r 1 -s 2001:db8:1::1 -w 1 2001:db8:1::3 vx0"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -v          Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+while getopts ":t:pvh" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$((VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+require_command mausezahn
+require_command arping
+require_command ndisc6
+require_command jq
+
+if ! ip nexthop help 2>&1 | grep -q "stats"; then
+	echo "SKIP: iproute2 ip too old, missing nexthop stats support"
+	exit "$ksft_skip"
+fi
+
+trap exit_cleanup_all EXIT
+
+for t in $TESTS
+do
+	setup_ns ns1; $t; cleanup_all_ns;
+done
diff --git a/tools/testing/selftests/net/test_vxlan_nolocalbypass.sh b/tools/testing/selftests/net/test_vxlan_nolocalbypass.sh
new file mode 100755
index 000000000000..b8805983b728
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_nolocalbypass.sh
@@ -0,0 +1,238 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking the [no]localbypass VXLAN device option. The test
+# configures two VXLAN devices in the same network namespace and a tc filter on
+# the loopback device that drops encapsulated packets. The test sends packets
+# from the first VXLAN device and verifies that by default these packets are
+# received by the second VXLAN device. The test then enables the nolocalbypass
+# option and verifies that packets are no longer received by the second VXLAN
+# device.
+
+source lib.sh
+ret=0
+
+TESTS="
+	nolocalbypass
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+################################################################################
+# Utilities
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "$VERBOSE" = "1" ]; then
+			echo "    rc=$rc, expected $expected"
+		fi
+
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+tc_check_packets()
+{
+	local ns=$1; shift
+	local id=$1; shift
+	local handle=$1; shift
+	local count=$1; shift
+	local pkts
+
+	sleep 0.1
+	pkts=$(tc -n $ns -j -s filter show $id \
+		| jq ".[] | select(.options.handle == $handle) | \
+		.options.actions[0].stats.packets")
+	[[ $pkts == $count ]]
+}
+
+################################################################################
+# Setup
+
+setup()
+{
+	setup_ns ns1
+
+	ip -n $ns1 address add 192.0.2.1/32 dev lo
+	ip -n $ns1 address add 198.51.100.1/32 dev lo
+
+	ip -n $ns1 link add name vx0 up type vxlan id 100 local 198.51.100.1 \
+		dstport 4789 nolearning
+	ip -n $ns1 link add name vx1 up type vxlan id 100 dstport 4790
+}
+
+cleanup()
+{
+	cleanup_ns $ns1
+}
+
+################################################################################
+# Tests
+
+nolocalbypass()
+{
+	local smac=00:01:02:03:04:05
+	local dmac=00:0a:0b:0c:0d:0e
+
+	run_cmd "bridge -n $ns1 fdb add $dmac dev vx0 self static dst 192.0.2.1 port 4790"
+
+	run_cmd "tc -n $ns1 qdisc add dev vx1 clsact"
+	run_cmd "tc -n $ns1 filter add dev vx1 ingress pref 1 handle 101 proto all flower src_mac $smac dst_mac $dmac action pass"
+
+	run_cmd "tc -n $ns1 qdisc add dev lo clsact"
+	run_cmd "tc -n $ns1 filter add dev lo ingress pref 1 handle 101 proto ip flower ip_proto udp dst_port 4790 action drop"
+
+	run_cmd "ip -n $ns1 -d -j link show dev vx0 | jq -e '.[][\"linkinfo\"][\"info_data\"][\"localbypass\"] == true'"
+	log_test $? 0 "localbypass enabled"
+
+	run_cmd "ip netns exec $ns1 mausezahn vx0 -a $smac -b $dmac -c 1 -p 100 -q"
+
+	tc_check_packets "$ns1" "dev vx1 ingress" 101 1
+	log_test $? 0 "Packet received by local VXLAN device - localbypass"
+
+	run_cmd "ip -n $ns1 link set dev vx0 type vxlan nolocalbypass"
+
+	run_cmd "ip -n $ns1 -d -j link show dev vx0 | jq -e '.[][\"linkinfo\"][\"info_data\"][\"localbypass\"] == false'"
+	log_test $? 0 "localbypass disabled"
+
+	run_cmd "ip netns exec $ns1 mausezahn vx0 -a $smac -b $dmac -c 1 -p 100 -q"
+
+	tc_check_packets "$ns1" "dev vx1 ingress" 101 1
+	log_test $? 0 "Packet not received by local VXLAN device - nolocalbypass"
+
+	run_cmd "ip -n $ns1 link set dev vx0 type vxlan localbypass"
+
+	run_cmd "ip -n $ns1 -d -j link show dev vx0 | jq -e '.[][\"linkinfo\"][\"info_data\"][\"localbypass\"] == true'"
+	log_test $? 0 "localbypass enabled"
+
+	run_cmd "ip netns exec $ns1 mausezahn vx0 -a $smac -b $dmac -c 1 -p 100 -q"
+
+	tc_check_packets "$ns1" "dev vx1 ingress" 101 2
+	log_test $? 0 "Packet received by local VXLAN device - localbypass"
+}
+
+################################################################################
+# Usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+        -p          Pause on fail
+        -P          Pause after each test before cleanup
+        -v          Verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# Main
+
+trap cleanup EXIT
+
+while getopts ":t:pPvh" opt; do
+	case $opt in
+		t) TESTS=$OPTARG ;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# Make sure we don't pause twice.
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v bridge)" ]; then
+	echo "SKIP: Could not run test without bridge tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v mausezahn)" ]; then
+	echo "SKIP: Could not run test without mausezahn tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v jq)" ]; then
+	echo "SKIP: Could not run test without jq tool"
+	exit $ksft_skip
+fi
+
+ip link help vxlan 2>&1 | grep -q "localbypass"
+if [ $? -ne 0 ]; then
+	echo "SKIP: iproute2 ip too old, missing VXLAN nolocalbypass support"
+	exit $ksft_skip
+fi
+
+cleanup
+
+for t in $TESTS
+do
+	setup; $t; cleanup;
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/test_vxlan_under_vrf.sh b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
new file mode 100755
index 000000000000..ae8fbe3f0779
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_under_vrf.sh
@@ -0,0 +1,133 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking VXLAN underlay in a non-default VRF.
+#
+# It simulates two hypervisors running a VM each using four network namespaces:
+# two for the HVs, two for the VMs.
+# A small VXLAN tunnel is made between the two hypervisors to have the two vms
+# in the same virtual L2:
+#
+# +-------------------+                                    +-------------------+
+# |                   |                                    |                   |
+# |    vm-1 netns     |                                    |    vm-2 netns     |
+# |                   |                                    |                   |
+# |  +-------------+  |                                    |  +-------------+  |
+# |  |   veth-hv   |  |                                    |  |   veth-hv   |  |
+# |  | 10.0.0.1/24 |  |                                    |  | 10.0.0.2/24 |  |
+# |  +-------------+  |                                    |  +-------------+  |
+# |        .          |                                    |         .         |
+# +-------------------+                                    +-------------------+
+#          .                                                         .
+#          .                                                         .
+#          .                                                         .
+# +-----------------------------------+   +------------------------------------+
+# |        .                          |   |                          .         |
+# |  +----------+                     |   |                     +----------+   |
+# |  | veth-tap |                     |   |                     | veth-tap |   |
+# |  +----+-----+                     |   |                     +----+-----+   |
+# |       |                           |   |                          |         |
+# |    +--+--+      +--------------+  |   |  +--------------+     +--+--+      |
+# |    | br0 |      | vrf-underlay |  |   |  | vrf-underlay |     | br0 |      |
+# |    +--+--+      +-------+------+  |   |  +------+-------+     +--+--+      |
+# |       |                 |         |   |         |                |         |
+# |   +---+----+    +-------+-------+ |   | +-------+-------+    +---+----+    |
+# |   | vxlan0 |....|     veth0     |.|...|.|     veth0     |....| vxlan0 |    |
+# |   +--------+    | 172.16.0.1/24 | |   | | 172.16.0.2/24 |    +--------+    |
+# |                 +---------------+ |   | +---------------+                  |
+# |                                   |   |                                    |
+# |             hv-1 netns            |   |           hv-2 netns               |
+# |                                   |   |                                    |
+# +-----------------------------------+   +------------------------------------+
+#
+# This tests both the connectivity between vm-1 and vm-2, and that the underlay
+# can be moved in and out of the vrf by unsetting and setting veth0's master.
+
+source lib.sh
+set -e
+
+cleanup() {
+    ip link del veth-hv-1 2>/dev/null || true
+    ip link del veth-tap 2>/dev/null || true
+
+    cleanup_ns $hv_1 $hv_2 $vm_1 $vm_2
+}
+
+# Clean start
+cleanup &> /dev/null
+
+[[ $1 == "clean" ]] && exit 0
+
+trap cleanup EXIT
+setup_ns hv_1 hv_2 vm_1 vm_2
+hv[1]=$hv_1
+hv[2]=$hv_2
+vm[1]=$vm_1
+vm[2]=$vm_2
+
+# Setup "Hypervisors" simulated with netns
+ip link add veth-hv-1 type veth peer name veth-hv-2
+setup-hv-networking() {
+    id=$1
+
+    ip link set veth-hv-$id netns ${hv[$id]}
+    ip -netns ${hv[$id]} link set veth-hv-$id name veth0
+
+    ip -netns ${hv[$id]} link add vrf-underlay type vrf table 1
+    ip -netns ${hv[$id]} link set vrf-underlay up
+    ip -netns ${hv[$id]} addr add 172.16.0.$id/24 dev veth0
+    ip -netns ${hv[$id]} link set veth0 up
+
+    ip -netns ${hv[$id]} link add br0 type bridge
+    ip -netns ${hv[$id]} link set br0 up
+
+    ip -netns ${hv[$id]} link add vxlan0 type vxlan id 10 local 172.16.0.$id dev veth0 dstport 4789
+    ip -netns ${hv[$id]} link set vxlan0 master br0
+    ip -netns ${hv[$id]} link set vxlan0 up
+}
+setup-hv-networking 1
+setup-hv-networking 2
+
+# Check connectivity between HVs by pinging hv-2 from hv-1
+echo -n "Checking HV connectivity                                           "
+ip netns exec $hv_1 ping -c 1 -W 1 172.16.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
+
+# Setups a "VM" simulated by a netns an a veth pair
+setup-vm() {
+    id=$1
+
+    ip link add veth-tap type veth peer name veth-hv
+
+    ip link set veth-tap netns ${hv[$id]}
+    ip -netns ${hv[$id]} link set veth-tap master br0
+    ip -netns ${hv[$id]} link set veth-tap up
+
+    ip link set veth-hv address 02:1d:8d:dd:0c:6$id
+
+    ip link set veth-hv netns ${vm[$id]}
+    ip -netns ${vm[$id]} addr add 10.0.0.$id/24 dev veth-hv
+    ip -netns ${vm[$id]} link set veth-hv up
+}
+setup-vm 1
+setup-vm 2
+
+# Setup VTEP routes to make ARP work
+bridge -netns $hv_1 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.2 self permanent
+bridge -netns $hv_2 fdb add 00:00:00:00:00:00 dev vxlan0 dst 172.16.0.1 self permanent
+
+echo -n "Check VM connectivity through VXLAN (underlay in the default VRF)  "
+ip netns exec $vm_1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
+
+# Move the underlay to a non-default VRF
+ip -netns $hv_1 link set veth0 vrf vrf-underlay
+ip -netns $hv_1 link set vxlan0 down
+ip -netns $hv_1 link set vxlan0 up
+ip -netns $hv_2 link set veth0 vrf vrf-underlay
+ip -netns $hv_2 link set vxlan0 down
+ip -netns $hv_2 link set vxlan0 up
+
+echo -n "Check VM connectivity through VXLAN (underlay in a VRF)            "
+ip netns exec $vm_1 ping -c 1 -W 1 10.0.0.2 &> /dev/null || (echo "[FAIL]"; false)
+echo "[ OK ]"
diff --git a/tools/testing/selftests/net/test_vxlan_vnifiltering.sh b/tools/testing/selftests/net/test_vxlan_vnifiltering.sh
new file mode 100755
index 000000000000..8deacc565afa
--- /dev/null
+++ b/tools/testing/selftests/net/test_vxlan_vnifiltering.sh
@@ -0,0 +1,606 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is for checking the VXLAN vni filtering api and
+# datapath.
+# It simulates two hypervisors running two VMs each using four network
+# six namespaces: two for the HVs, four for the VMs. Each VM is
+# connected to a separate bridge. The VM's use overlapping vlans and
+# hence the separate bridge domain. Each vxlan device is a collect
+# metadata device with vni filtering and hence has the ability to
+# terminate configured vni's only.
+
+#  +--------------------------------+     +------------------------------------+
+#  |  vm-11 netns                   |     |  vm-21 netns                       |
+#  |                                |     |                                    |
+#  |+------------+  +-------------+ |     |+-------------+ +----------------+  |
+#  ||veth-11.10  |  |veth-11.20   | |     ||veth-21.10   | | veth-21.20     |  |
+#  ||10.0.10.11/24  |10.0.20.11/24| |     ||10.0.10.21/24| | 10.0.20.21/24  |  |
+#  |+------|-----+  +|------------+ |     |+-----------|-+ +---|------------+  |
+#  |       |         |              |     |            |       |               |
+#  |       |         |              |     |         +------------+             |
+#  |      +------------+            |     |         | veth-21    |             |
+#  |      | veth-11    |            |     |         |            |             |
+#  |      |            |            |     |         +-----|------+             |
+#  |      +-----|------+            |     |               |                    |
+#  |            |                   |     |               |                    |
+#  +------------|-------------------+     +---------------|--------------------+
+#  +------------|-----------------------------------------|-------------------+
+#  |      +-----|------+                            +-----|------+            |
+#  |      |vethhv-11   |                            |vethhv-21   |            |
+#  |      +----|-------+                            +-----|------+            |
+#  |       +---|---+                                  +---|--+                |
+#  |       |  br1  |                                  | br2  |                |
+#  |       +---|---+                                  +---|--+                |
+#  |       +---|----+                                 +---|--+                |
+#  |       |  vxlan1|                                 |vxlan2|                |
+#  |       +--|-----+                                 +--|---+                |
+#  |          |                                          |                    |
+#  |          |         +---------------------+          |                    |
+#  |          |         |veth0                |          |                    |
+#  |          +---------|172.16.0.1/24        -----------+                    |
+#  |                    |2002:fee1::1/64      |                               |
+#  | hv-1 netns         +--------|------------+                               |
+#  +-----------------------------|--------------------------------------------+
+#                                |
+#  +-----------------------------|--------------------------------------------+
+#  | hv-2 netns         +--------|-------------+                              |
+#  |                    | veth0                |                              |
+#  |             +------| 172.16.0.2/24        |---+                          |
+#  |             |      | 2002:fee1::2/64      |   |                          |
+#  |             |      |                      |   |                          |
+#  |             |      +----------------------+   |         -                |
+#  |             |                                 |                          |
+#  |           +-|-------+                +--------|-+                        |
+#  |           | vxlan1  |                |  vxlan2  |                        |
+#  |           +----|----+                +---|------+                        |
+#  |             +--|--+                    +-|---+                           |
+#  |             | br1 |                    | br2 |                           |
+#  |             +--|--+                    +--|--+                           |
+#  |          +-----|-------+             +----|-------+                      |
+#  |          | vethhv-12   |             |vethhv-22   |                      |
+#  |          +------|------+             +-------|----+                      |
+#  +-----------------|----------------------------|---------------------------+
+#                    |                            |
+#  +-----------------|-----------------+ +--------|---------------------------+
+#  |         +-------|---+             | |     +--|---------+                 |
+#  |         | veth-12   |             | |     |veth-22     |                 |
+#  |         +-|--------|+             | |     +--|--------|+                 |
+#  |           |        |              | |        |        |                  |
+#  |+----------|--+ +---|-----------+  | |+-------|-----+ +|---------------+  |
+#  ||veth-12.10   | |veth-12.20     |  | ||veth-22.10   | |veth-22.20      |  |
+#  ||10.0.10.12/24| |10.0.20.12/24  |  | ||10.0.10.22/24| |10.0.20.22/24   |  |
+#  |+-------------+ +---------------+  | |+-------------+ +----------------+  |
+#  |                                   | |                                    |
+#  |                                   | |                                    |
+#  | vm-12 netns                       | |vm-22 netns                         |
+#  +-----------------------------------+ +------------------------------------+
+#
+#
+# This test tests the new vxlan vnifiltering api
+source lib.sh
+ret=0
+
+# all tests in this script. Can be overridden with -t option
+TESTS="
+	vxlan_vnifilter_api
+	vxlan_vnifilter_datapath
+	vxlan_vnifilter_datapath_pervni
+	vxlan_vnifilter_datapath_mgroup
+	vxlan_vnifilter_datapath_mgroup_pervni
+	vxlan_vnifilter_metadata_and_traditional_mix
+"
+VERBOSE=0
+PAUSE_ON_FAIL=no
+PAUSE=no
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "    TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+		echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+
+	if [ "${PAUSE}" = "yes" ]; then
+		echo
+		echo "hit enter to continue, 'q' to quit"
+		read a
+		[ "$a" = "q" ] && exit 1
+	fi
+}
+
+run_cmd()
+{
+	local cmd="$1"
+	local out
+	local stderr="2>/dev/null"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "COMMAND: $cmd\n"
+		stderr=
+	fi
+
+	out=$(eval $cmd $stderr)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	return $rc
+}
+
+check_hv_connectivity() {
+	slowwait 5 ip netns exec $hv_1 ping -c 1 -W 1 $1 &>/dev/null
+	slowwait 5 ip netns exec $hv_1 ping -c 1 -W 1 $2 &>/dev/null
+
+	return $?
+}
+
+check_vm_connectivity() {
+	slowwait 5 run_cmd "ip netns exec $vm_11 ping -c 1 -W 1 10.0.10.12"
+	log_test $? 0 "VM connectivity over $1 (ipv4 default rdst)"
+
+	slowwait 5 run_cmd "ip netns exec $vm_21 ping -c 1 -W 1 10.0.10.22"
+	log_test $? 0 "VM connectivity over $1 (ipv6 default rdst)"
+}
+
+cleanup() {
+	ip link del veth-hv-1 2>/dev/null || true
+	ip link del vethhv-11 vethhv-12 vethhv-21 vethhv-22 2>/dev/null || true
+
+	cleanup_ns $hv_1 $hv_2 $vm_11 $vm_21 $vm_12 $vm_22 $vm_31 $vm_32
+}
+
+trap cleanup EXIT
+
+setup-hv-networking() {
+	id=$1
+	local1=$2
+	mask1=$3
+	local2=$4
+	mask2=$5
+
+	ip link set veth-hv-$id netns ${hv[$id]}
+	ip -netns ${hv[$id]} link set veth-hv-$id name veth0
+	ip -netns ${hv[$id]} addr add $local1/$mask1 dev veth0
+	ip -netns ${hv[$id]} addr add $local2/$mask2 dev veth0
+	ip -netns ${hv[$id]} link set veth0 up
+}
+
+# Setups a "VM" simulated by a netns an a veth pair
+# example: setup-vm <hvid> <vmid> <brid> <VATTRS> <mcast_for_bum>
+# VATTRS = comma separated "<vlan>-<v[46]>-<localip>-<remoteip>-<VTYPE>-<vxlandstport>"
+# VTYPE = vxlan device type. "default = traditional device, metadata = metadata device
+#         vnifilter = vnifiltering device,
+#         vnifilterg = vnifiltering device with per vni group/remote"
+# example:
+#     setup-vm 1 11 1 \
+#         10-v4-172.16.0.1-239.1.1.100-vnifilterg,20-v4-172.16.0.1-239.1.1.100-vnifilterg 1
+#
+setup-vm() {
+	hvid=$1
+	vmid=$2
+	brid=$3
+	vattrs=$4
+	mcast=$5
+	lastvxlandev=""
+
+	# create bridge
+	ip -netns ${hv[$hvid]} link add br$brid type bridge vlan_filtering 1 vlan_default_pvid 0 \
+		mcast_snooping 0
+	ip -netns ${hv[$hvid]} link set br$brid up
+
+	# create vm namespace and interfaces and connect to hypervisor
+	# namespace
+	hvvethif="vethhv-$vmid"
+	vmvethif="veth-$vmid"
+	ip link add $hvvethif type veth peer name $vmvethif
+	ip link set $hvvethif netns ${hv[$hvid]}
+	ip link set $vmvethif netns ${vm[$vmid]}
+	ip -netns ${hv[$hvid]} link set $hvvethif up
+	ip -netns ${vm[$vmid]} link set $vmvethif up
+	ip -netns ${hv[$hvid]} link set $hvvethif master br$brid
+
+	# configure VM vlan/vni filtering on hypervisor
+	for vmap in $(echo $vattrs | cut -d "," -f1- --output-delimiter=' ')
+	do
+	local vid=$(echo $vmap | awk -F'-' '{print ($1)}')
+	local family=$(echo $vmap | awk -F'-' '{print ($2)}')
+	local localip=$(echo $vmap | awk -F'-' '{print ($3)}')
+	local group=$(echo $vmap | awk -F'-' '{print ($4)}')
+	local vtype=$(echo $vmap | awk -F'-' '{print ($5)}')
+	local port=$(echo $vmap | awk -F'-' '{print ($6)}')
+
+	ip -netns ${vm[$vmid]} link add name $vmvethif.$vid link $vmvethif type vlan id $vid
+	ip -netns ${vm[$vmid]} addr add 10.0.$vid.$vmid/24 dev $vmvethif.$vid
+	ip -netns ${vm[$vmid]} link set $vmvethif.$vid up
+
+	tid=$vid
+	vxlandev="vxlan$brid"
+	vxlandevflags=""
+
+	if [[ -n $vtype && $vtype == "metadata" ]]; then
+	   vxlandevflags="$vxlandevflags external"
+	elif [[ -n $vtype && $vtype == "vnifilter" || $vtype == "vnifilterg" ]]; then
+	   vxlandevflags="$vxlandevflags external vnifilter"
+	   tid=$((vid+brid))
+	else
+	   vxlandevflags="$vxlandevflags id $tid"
+	   vxlandev="vxlan$tid"
+	fi
+
+	if [[ -n $vtype && $vtype != "vnifilterg" ]]; then
+	   if [[ -n "$group" && "$group" != "null" ]]; then
+	      if [ $mcast -eq 1 ]; then
+		 vxlandevflags="$vxlandevflags group $group"
+	      else
+		 vxlandevflags="$vxlandevflags remote $group"
+	      fi
+	   fi
+	fi
+
+	if [[ -n "$port" && "$port" != "default" ]]; then
+	      vxlandevflags="$vxlandevflags dstport $port"
+	fi
+
+	# create vxlan device
+	if [ "$vxlandev" != "$lastvxlandev" ]; then
+	     ip -netns ${hv[$hvid]} link add $vxlandev type vxlan local $localip $vxlandevflags dev veth0 2>/dev/null
+	     ip -netns ${hv[$hvid]} link set $vxlandev master br$brid
+	     ip -netns ${hv[$hvid]} link set $vxlandev up
+	     lastvxlandev=$vxlandev
+	fi
+
+	# add vlan
+	bridge -netns ${hv[$hvid]} vlan add vid $vid dev $hvvethif
+	bridge -netns ${hv[$hvid]} vlan add vid $vid pvid dev $vxlandev
+
+	# Add bridge vni filter for tx
+	if [[ -n $vtype && $vtype == "metadata" || $vtype == "vnifilter" || $vtype == "vnifilterg" ]]; then
+	   bridge -netns ${hv[$hvid]} link set dev $vxlandev vlan_tunnel on
+	   bridge -netns ${hv[$hvid]} vlan add dev $vxlandev vid $vid tunnel_info id $tid
+	fi
+
+	if [[ -n $vtype && $vtype == "metadata" ]]; then
+	   bridge -netns ${hv[$hvid]} fdb add 00:00:00:00:00:00 dev $vxlandev \
+								src_vni $tid vni $tid dst $group self
+	elif [[ -n $vtype && $vtype == "vnifilter" ]]; then
+	   # Add per vni rx filter with 'bridge vni' api
+	   bridge -netns ${hv[$hvid]} vni add dev $vxlandev vni $tid
+	elif [[ -n $vtype && $vtype == "vnifilterg" ]]; then
+	   # Add per vni group config with 'bridge vni' api
+	   if [ -n "$group" ]; then
+		if [ $mcast -eq 1 ]; then
+			bridge -netns ${hv[$hvid]} vni add dev $vxlandev vni $tid group $group
+		else
+			bridge -netns ${hv[$hvid]} vni add dev $vxlandev vni $tid remote $group
+		fi
+	   fi
+	fi
+	done
+}
+
+setup_vnifilter_api()
+{
+	ip link add veth-host type veth peer name veth-testns
+	setup_ns testns
+	ip link set veth-testns netns $testns
+}
+
+cleanup_vnifilter_api()
+{
+	ip link del veth-host 2>/dev/null || true
+	ip netns del $testns 2>/dev/null || true
+}
+
+# tests vxlan filtering api
+vxlan_vnifilter_api()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+	localip="172.16.0.1"
+	group="239.1.1.101"
+
+	cleanup_vnifilter_api &>/dev/null
+	setup_vnifilter_api
+
+	# Duplicate vni test
+	# create non-vnifiltering traditional vni device
+	run_cmd "ip -netns $testns link add vxlan100 type vxlan id 100 local $localip dev veth-testns dstport 4789"
+	log_test $? 0 "Create traditional vxlan device"
+
+	# create vni filtering device
+	run_cmd "ip -netns $testns link add vxlan-ext1 type vxlan vnifilter local $localip dev veth-testns dstport 4789"
+	log_test $? 1 "Cannot create vnifilter device without external flag"
+
+	run_cmd "ip -netns $testns link add vxlan-ext1 type vxlan external vnifilter local $localip dev veth-testns dstport 4789"
+	log_test $? 0 "Creating external vxlan device with vnifilter flag"
+
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext1 vni 100"
+	log_test $? 0 "Cannot set in-use vni id on vnifiltering device"
+
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext1 vni 200"
+	log_test $? 0 "Set new vni id on vnifiltering device"
+
+	run_cmd "ip -netns $testns link add vxlan-ext2 type vxlan external vnifilter local $localip dev veth-testns dstport 4789"
+	log_test $? 0 "Create second external vxlan device with vnifilter flag"
+
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext2 vni 200"
+	log_test $? 255 "Cannot set in-use vni id on vnifiltering device"
+
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext2 vni 300"
+	log_test $? 0 "Set new vni id on vnifiltering device"
+
+	# check in bridge vni show
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext2 vni 300"
+	log_test $? 0 "Update vni id on vnifiltering device"
+
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext2 vni 400"
+	log_test $? 0 "Add new vni id on vnifiltering device"
+
+	# add multicast group per vni
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext1 vni 200 group $group"
+	log_test $? 0 "Set multicast group on existing vni"
+
+	# add multicast group per vni
+	run_cmd "bridge -netns $testns vni add dev vxlan-ext2 vni 300 group $group"
+	log_test $? 0 "Set multicast group on existing vni"
+
+	# set vnifilter on an existing external vxlan device
+	run_cmd "ip -netns $testns link set dev vxlan-ext1 type vxlan external vnifilter"
+	log_test $? 2 "Cannot set vnifilter flag on a device"
+
+	# change vxlan vnifilter flag
+	run_cmd "ip -netns $testns link set dev vxlan-ext1 type vxlan external novnifilter"
+	log_test $? 2 "Cannot unset vnifilter flag on a device"
+}
+
+# Sanity test vnifilter datapath
+# vnifilter vnis inherit BUM group from
+# vxlan device
+vxlan_vnifilter_datapath()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+
+	setup_ns hv_1 hv_2
+	hv[1]=$hv_1
+	hv[2]=$hv_2
+	ip link add veth-hv-1 type veth peer name veth-hv-2
+	setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64 $hv2addr1 $hv2addr2
+	setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64 $hv1addr1 $hv1addr2
+
+        check_hv_connectivity hv2addr1 hv2addr2
+
+	setup_ns vm_11 vm_21 vm_12 vm_22
+	vm[11]=$vm_11
+	vm[21]=$vm_21
+	vm[12]=$vm_12
+	vm[22]=$vm_22
+	setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilter,20-v4-$hv1addr1-$hv2addr1-vnifilter 0
+	setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilter,20-v6-$hv1addr2-$hv2addr2-vnifilter 0
+
+	setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilter,20-v4-$hv2addr1-$hv1addr1-vnifilter 0
+	setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilter,20-v6-$hv2addr2-$hv1addr2-vnifilter 0
+
+        check_vm_connectivity "vnifiltering vxlan"
+}
+
+# Sanity test vnifilter datapath
+# with vnifilter per vni configured BUM
+# group/remote
+vxlan_vnifilter_datapath_pervni()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+
+	setup_ns hv_1 hv_2
+	hv[1]=$hv_1
+	hv[2]=$hv_2
+	ip link add veth-hv-1 type veth peer name veth-hv-2
+	setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
+	setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
+
+        check_hv_connectivity hv2addr1 hv2addr2
+
+	setup_ns vm_11 vm_21 vm_12 vm_22
+	vm[11]=$vm_11
+	vm[21]=$vm_21
+	vm[12]=$vm_12
+	vm[22]=$vm_22
+	setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilterg,20-v4-$hv1addr1-$hv2addr1-vnifilterg 0
+	setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilterg,20-v6-$hv1addr2-$hv2addr2-vnifilterg 0
+
+	setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilterg,20-v4-$hv2addr1-$hv1addr1-vnifilterg 0
+	setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilterg,20-v6-$hv2addr2-$hv1addr2-vnifilterg 0
+
+        check_vm_connectivity "vnifiltering vxlan pervni remote"
+}
+
+
+vxlan_vnifilter_datapath_mgroup()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+        group="239.1.1.100"
+        group6="ff07::1"
+
+	setup_ns hv_1 hv_2
+	hv[1]=$hv_1
+	hv[2]=$hv_2
+	ip link add veth-hv-1 type veth peer name veth-hv-2
+	setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
+	setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
+
+        check_hv_connectivity hv2addr1 hv2addr2
+
+	setup_ns vm_11 vm_21 vm_12 vm_22
+	vm[11]=$vm_11
+	vm[21]=$vm_21
+	vm[12]=$vm_12
+	vm[22]=$vm_22
+	setup-vm 1 11 1 10-v4-$hv1addr1-$group-vnifilter,20-v4-$hv1addr1-$group-vnifilter 1
+	setup-vm 1 21 2 "10-v6-$hv1addr2-$group6-vnifilter,20-v6-$hv1addr2-$group6-vnifilter" 1
+
+        setup-vm 2 12 1 10-v4-$hv2addr1-$group-vnifilter,20-v4-$hv2addr1-$group-vnifilter 1
+        setup-vm 2 22 2 10-v6-$hv2addr2-$group6-vnifilter,20-v6-$hv2addr2-$group6-vnifilter 1
+
+        check_vm_connectivity "vnifiltering vxlan mgroup"
+}
+
+vxlan_vnifilter_datapath_mgroup_pervni()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+        group="239.1.1.100"
+        group6="ff07::1"
+
+	setup_ns hv_1 hv_2
+	hv[1]=$hv_1
+	hv[2]=$hv_2
+	ip link add veth-hv-1 type veth peer name veth-hv-2
+	setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
+	setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
+
+        check_hv_connectivity hv2addr1 hv2addr2
+
+	setup_ns vm_11 vm_21 vm_12 vm_22
+	vm[11]=$vm_11
+	vm[21]=$vm_21
+	vm[12]=$vm_12
+	vm[22]=$vm_22
+	setup-vm 1 11 1 10-v4-$hv1addr1-$group-vnifilterg,20-v4-$hv1addr1-$group-vnifilterg 1
+	setup-vm 1 21 2 10-v6-$hv1addr2-$group6-vnifilterg,20-v6-$hv1addr2-$group6-vnifilterg 1
+
+        setup-vm 2 12 1 10-v4-$hv2addr1-$group-vnifilterg,20-v4-$hv2addr1-$group-vnifilterg 1
+        setup-vm 2 22 2 10-v6-$hv2addr2-$group6-vnifilterg,20-v6-$hv2addr2-$group6-vnifilterg 1
+
+        check_vm_connectivity "vnifiltering vxlan pervni mgroup"
+}
+
+vxlan_vnifilter_metadata_and_traditional_mix()
+{
+	hv1addr1="172.16.0.1"
+	hv2addr1="172.16.0.2"
+	hv1addr2="2002:fee1::1"
+	hv2addr2="2002:fee1::2"
+
+	setup_ns hv_1 hv_2
+	hv[1]=$hv_1
+	hv[2]=$hv_2
+	ip link add veth-hv-1 type veth peer name veth-hv-2
+	setup-hv-networking 1 $hv1addr1 24 $hv1addr2 64
+	setup-hv-networking 2 $hv2addr1 24 $hv2addr2 64
+
+        check_hv_connectivity hv2addr1 hv2addr2
+
+	setup_ns vm_11 vm_21 vm_31 vm_12 vm_22 vm_32
+	vm[11]=$vm_11
+	vm[21]=$vm_21
+	vm[31]=$vm_31
+	vm[12]=$vm_12
+	vm[22]=$vm_22
+	vm[32]=$vm_32
+	setup-vm 1 11 1 10-v4-$hv1addr1-$hv2addr1-vnifilter,20-v4-$hv1addr1-$hv2addr1-vnifilter 0
+	setup-vm 1 21 2 10-v6-$hv1addr2-$hv2addr2-vnifilter,20-v6-$hv1addr2-$hv2addr2-vnifilter 0
+	setup-vm 1 31 3 30-v4-$hv1addr1-$hv2addr1-default-4790,40-v6-$hv1addr2-$hv2addr2-default-4790,50-v4-$hv1addr1-$hv2addr1-metadata-4791 0
+
+
+	setup-vm 2 12 1 10-v4-$hv2addr1-$hv1addr1-vnifilter,20-v4-$hv2addr1-$hv1addr1-vnifilter 0
+	setup-vm 2 22 2 10-v6-$hv2addr2-$hv1addr2-vnifilter,20-v6-$hv2addr2-$hv1addr2-vnifilter 0
+	setup-vm 2 32 3 30-v4-$hv2addr1-$hv1addr1-default-4790,40-v6-$hv2addr2-$hv1addr2-default-4790,50-v4-$hv2addr1-$hv1addr1-metadata-4791 0
+
+        check_vm_connectivity "vnifiltering vxlan pervni remote mix"
+
+	# check VM connectivity over traditional/non-vxlan filtering vxlan devices
+	run_cmd "ip netns exec $vm_31 ping -c 1 -W 1 10.0.30.32"
+        log_test $? 0 "VM connectivity over traditional vxlan (ipv4 default rdst)"
+
+	run_cmd "ip netns exec $vm_31 ping -c 1 -W 1 10.0.40.32"
+        log_test $? 0 "VM connectivity over traditional vxlan (ipv6 default rdst)"
+
+	run_cmd "ip netns exec $vm_31 ping -c 1 -W 1 10.0.50.32"
+        log_test $? 0 "VM connectivity over metadata nonfiltering vxlan (ipv4 default rdst)"
+}
+
+while getopts :t:pP46hv o
+do
+	case $o in
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		P) PAUSE=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+# make sure we don't pause twice
+[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+ip link help vxlan 2>&1 | grep -q "vnifilter"
+if [ $? -ne 0 ]; then
+   echo "SKIP: iproute2 too old, missing vxlan dev vnifilter setting"
+   sync
+   exit $ksft_skip
+fi
+
+bridge vni help 2>&1 | grep -q "Usage: bridge vni"
+if [ $? -ne 0 ]; then
+   echo "SKIP: iproute2 bridge lacks vxlan vnifiltering support"
+   exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+
+for t in $TESTS
+do
+	case $t in
+	none) setup; exit 0;;
+	*) $t; cleanup;;
+	esac
+done
+
+if [ "$TESTS" != "none" ]; then
+	printf "\nTests passed: %3d\n" ${nsuccess}
+	printf "Tests failed: %3d\n"   ${nfail}
+fi
+
+exit $ret
diff --git a/tools/testing/selftests/net/tfo.c b/tools/testing/selftests/net/tfo.c
new file mode 100644
index 000000000000..eb3cac5e583c
--- /dev/null
+++ b/tools/testing/selftests/net/tfo.c
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <error.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <sys/socket.h>
+#include <netinet/tcp.h>
+#include <errno.h>
+
+static int cfg_server;
+static int cfg_client;
+static int cfg_port = 8000;
+static struct sockaddr_in6 cfg_addr;
+static char *cfg_outfile;
+
+static int parse_address(const char *str, int port, struct sockaddr_in6 *sin6)
+{
+	int ret;
+
+	sin6->sin6_family = AF_INET6;
+	sin6->sin6_port = htons(port);
+
+	ret = inet_pton(sin6->sin6_family, str, &sin6->sin6_addr);
+	if (ret != 1) {
+		/* fallback to plain IPv4 */
+		ret = inet_pton(AF_INET, str, &sin6->sin6_addr.s6_addr32[3]);
+		if (ret != 1)
+			return -1;
+
+		/* add ::ffff prefix */
+		sin6->sin6_addr.s6_addr32[0] = 0;
+		sin6->sin6_addr.s6_addr32[1] = 0;
+		sin6->sin6_addr.s6_addr16[4] = 0;
+		sin6->sin6_addr.s6_addr16[5] = 0xffff;
+	}
+
+	return 0;
+}
+
+static void run_server(void)
+{
+	unsigned long qlen = 32;
+	int fd, opt, connfd;
+	socklen_t len;
+	char buf[64];
+	FILE *outfile;
+
+	outfile = fopen(cfg_outfile, "w");
+	if (!outfile)
+		error(1, errno, "fopen() outfile");
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket()");
+
+	opt = 1;
+	if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt)) < 0)
+		error(1, errno, "setsockopt(SO_REUSEADDR)");
+
+	if (setsockopt(fd, SOL_TCP, TCP_FASTOPEN, &qlen, sizeof(qlen)) < 0)
+		error(1, errno, "setsockopt(TCP_FASTOPEN)");
+
+	if (bind(fd, (struct sockaddr *)&cfg_addr, sizeof(cfg_addr)) < 0)
+		error(1, errno, "bind()");
+
+	if (listen(fd, 5) < 0)
+		error(1, errno, "listen()");
+
+	len = sizeof(cfg_addr);
+	connfd = accept(fd, (struct sockaddr *)&cfg_addr, &len);
+	if (connfd < 0)
+		error(1, errno, "accept()");
+
+	len = sizeof(opt);
+	if (getsockopt(connfd, SOL_SOCKET, SO_INCOMING_NAPI_ID, &opt, &len) < 0)
+		error(1, errno, "getsockopt(SO_INCOMING_NAPI_ID)");
+
+	read(connfd, buf, 64);
+	fprintf(outfile, "%d\n", opt);
+
+	fclose(outfile);
+	close(connfd);
+	close(fd);
+}
+
+static void run_client(void)
+{
+	int fd;
+	char *msg = "Hello, world!";
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket()");
+
+	sendto(fd, msg, strlen(msg), MSG_FASTOPEN, (struct sockaddr *)&cfg_addr, sizeof(cfg_addr));
+
+	close(fd);
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s (-s|-c) -h<server_ip> -p<port> -o<outfile> ", filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	struct sockaddr_in6 *addr6 = (void *) &cfg_addr;
+	char *addr = NULL;
+	int ret;
+	int c;
+
+	if (argc <= 1)
+		usage(argv[0]);
+
+	while ((c = getopt(argc, argv, "sch:p:o:")) != -1) {
+		switch (c) {
+		case 's':
+			if (cfg_client)
+				error(1, 0, "Pass one of -s or -c");
+			cfg_server = 1;
+			break;
+		case 'c':
+			if (cfg_server)
+				error(1, 0, "Pass one of -s or -c");
+			cfg_client = 1;
+			break;
+		case 'h':
+			addr = optarg;
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 'o':
+			cfg_outfile = strdup(optarg);
+			if (!cfg_outfile)
+				error(1, 0, "outfile invalid");
+			break;
+		}
+	}
+
+	if (cfg_server && addr)
+		error(1, 0, "Server cannot have -h specified");
+
+	memset(addr6, 0, sizeof(*addr6));
+	addr6->sin6_family = AF_INET6;
+	addr6->sin6_port = htons(cfg_port);
+	addr6->sin6_addr = in6addr_any;
+	if (addr) {
+		ret = parse_address(addr, cfg_port, addr6);
+		if (ret)
+			error(1, 0, "Client address parse error: %s", addr);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+
+	if (cfg_server)
+		run_server();
+	else if (cfg_client)
+		run_client();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tfo_passive.sh b/tools/testing/selftests/net/tfo_passive.sh
new file mode 100755
index 000000000000..a4550511830a
--- /dev/null
+++ b/tools/testing/selftests/net/tfo_passive.sh
@@ -0,0 +1,112 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+source lib.sh
+
+NSIM_SV_ID=$((256 + RANDOM % 256))
+NSIM_SV_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_SV_ID
+NSIM_CL_ID=$((512 + RANDOM % 256))
+NSIM_CL_SYS=/sys/bus/netdevsim/devices/netdevsim$NSIM_CL_ID
+
+NSIM_DEV_SYS_NEW=/sys/bus/netdevsim/new_device
+NSIM_DEV_SYS_DEL=/sys/bus/netdevsim/del_device
+NSIM_DEV_SYS_LINK=/sys/bus/netdevsim/link_device
+NSIM_DEV_SYS_UNLINK=/sys/bus/netdevsim/unlink_device
+
+SERVER_IP=192.168.1.1
+CLIENT_IP=192.168.1.2
+SERVER_PORT=48675
+
+setup_ns()
+{
+	set -e
+	ip netns add nssv
+	ip netns add nscl
+
+	NSIM_SV_NAME=$(find $NSIM_SV_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_SV_SYS/net -exec basename {} \;)
+	NSIM_CL_NAME=$(find $NSIM_CL_SYS/net -maxdepth 1 -type d ! \
+		-path $NSIM_CL_SYS/net -exec basename {} \;)
+
+	ip link set $NSIM_SV_NAME netns nssv
+	ip link set $NSIM_CL_NAME netns nscl
+
+	ip netns exec nssv ip addr add "${SERVER_IP}/24" dev $NSIM_SV_NAME
+	ip netns exec nscl ip addr add "${CLIENT_IP}/24" dev $NSIM_CL_NAME
+
+	ip netns exec nssv ip link set dev $NSIM_SV_NAME up
+	ip netns exec nscl ip link set dev $NSIM_CL_NAME up
+
+	# Enable passive TFO
+	ip netns exec nssv sysctl -w net.ipv4.tcp_fastopen=519 > /dev/null
+
+	set +e
+}
+
+cleanup_ns()
+{
+	ip netns del nscl
+	ip netns del nssv
+}
+
+###
+### Code start
+###
+
+modprobe netdevsim
+
+# linking
+
+echo $NSIM_SV_ID > $NSIM_DEV_SYS_NEW
+echo $NSIM_CL_ID > $NSIM_DEV_SYS_NEW
+udevadm settle
+
+setup_ns
+
+NSIM_SV_FD=$((256 + RANDOM % 256))
+exec {NSIM_SV_FD}</var/run/netns/nssv
+NSIM_SV_IFIDX=$(ip netns exec nssv cat /sys/class/net/$NSIM_SV_NAME/ifindex)
+
+NSIM_CL_FD=$((256 + RANDOM % 256))
+exec {NSIM_CL_FD}</var/run/netns/nscl
+NSIM_CL_IFIDX=$(ip netns exec nscl cat /sys/class/net/$NSIM_CL_NAME/ifindex)
+
+echo "$NSIM_SV_FD:$NSIM_SV_IFIDX $NSIM_CL_FD:$NSIM_CL_IFIDX" > \
+     $NSIM_DEV_SYS_LINK
+
+if [ $? -ne 0 ]; then
+	echo "linking netdevsim1 with netdevsim2 should succeed"
+	cleanup_ns
+	exit 1
+fi
+
+out_file=$(mktemp)
+
+timeout -k 1s 30s ip netns exec nssv ./tfo        \
+				-s                \
+				-p ${SERVER_PORT} \
+				-o ${out_file}&
+
+wait_local_port_listen nssv ${SERVER_PORT} tcp
+
+ip netns exec nscl ./tfo -c -h ${SERVER_IP} -p ${SERVER_PORT}
+
+wait
+
+res=$(cat $out_file)
+rm $out_file
+
+if [ "$res" = "0" ]; then
+	echo "got invalid NAPI ID from passive TFO socket"
+	cleanup_ns
+	exit 1
+fi
+
+echo "$NSIM_SV_FD:$NSIM_SV_IFIDX" > $NSIM_DEV_SYS_UNLINK
+
+echo $NSIM_CL_ID > $NSIM_DEV_SYS_DEL
+
+cleanup_ns
+
+modprobe -r netdevsim
+
+exit 0
diff --git a/tools/testing/selftests/net/timestamping.c b/tools/testing/selftests/net/timestamping.c
new file mode 100644
index 000000000000..044bc0e9ed81
--- /dev/null
+++ b/tools/testing/selftests/net/timestamping.c
@@ -0,0 +1,551 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * This program demonstrates how the various time stamping features in
+ * the Linux kernel work. It emulates the behavior of a PTP
+ * implementation in stand-alone master mode by sending PTPv1 Sync
+ * multicasts once every second. It looks for similar packets, but
+ * beyond that doesn't actually implement PTP.
+ *
+ * Outgoing packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support.
+ *
+ * Incoming packets are time stamped with SO_TIMESTAMPING with or
+ * without hardware support, SIOCGSTAMP[NS] (per-socket time stamp) and
+ * SO_TIMESTAMP[NS].
+ *
+ * Copyright (C) 2009 Intel Corporation.
+ * Author: Patrick Ohly <patrick.ohly@intel.com>
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+
+#include <asm/types.h>
+#include <linux/net_tstamp.h>
+#include <linux/errqueue.h>
+#include <linux/sockios.h>
+
+#ifndef SO_TIMESTAMPING
+# define SO_TIMESTAMPING         37
+# define SCM_TIMESTAMPING        SO_TIMESTAMPING
+#endif
+
+#ifndef SO_TIMESTAMPNS
+# define SO_TIMESTAMPNS 35
+#endif
+
+static void usage(const char *error)
+{
+	if (error)
+		printf("invalid option: %s\n", error);
+	printf("timestamping <interface> [bind_phc_index] [option]*\n\n"
+	       "Options:\n"
+	       "  IP_MULTICAST_LOOP - looping outgoing multicasts\n"
+	       "  SO_TIMESTAMP - normal software time stamping, ms resolution\n"
+	       "  SO_TIMESTAMPNS - more accurate software time stamping\n"
+	       "  SOF_TIMESTAMPING_TX_HARDWARE - hardware time stamping of outgoing packets\n"
+	       "  SOF_TIMESTAMPING_TX_SOFTWARE - software fallback for outgoing packets\n"
+	       "  SOF_TIMESTAMPING_RX_HARDWARE - hardware time stamping of incoming packets\n"
+	       "  SOF_TIMESTAMPING_RX_SOFTWARE - software fallback for incoming packets\n"
+	       "  SOF_TIMESTAMPING_SOFTWARE - request reporting of software time stamps\n"
+	       "  SOF_TIMESTAMPING_RAW_HARDWARE - request reporting of raw HW time stamps\n"
+	       "  SOF_TIMESTAMPING_BIND_PHC - request to bind a PHC of PTP vclock\n"
+	       "  SIOCGSTAMP - check last socket time stamp\n"
+	       "  SIOCGSTAMPNS - more accurate socket time stamp\n"
+	       "  PTPV2 - use PTPv2 messages\n");
+	exit(1);
+}
+
+static void bail(const char *error)
+{
+	printf("%s: %s\n", error, strerror(errno));
+	exit(1);
+}
+
+static const unsigned char sync[] = {
+	0x00, 0x01, 0x00, 0x01,
+	0x5f, 0x44, 0x46, 0x4c,
+	0x54, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x01, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x01, 0x00, 0x37,
+	0x00, 0x00, 0x00, 0x08,
+	0x00, 0x00, 0x00, 0x00,
+	0x49, 0x05, 0xcd, 0x01,
+	0x29, 0xb1, 0x8d, 0xb0,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x00, 0x00, 0x37,
+	0x00, 0x00, 0x00, 0x04,
+	0x44, 0x46, 0x4c, 0x54,
+	0x00, 0x00, 0xf0, 0x60,
+	0x00, 0x01, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x01,
+	0x00, 0x00, 0xf0, 0x60,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x04,
+	0x44, 0x46, 0x4c, 0x54,
+	0x00, 0x01,
+
+	/* fake uuid */
+	0x00, 0x01,
+	0x02, 0x03, 0x04, 0x05,
+
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00
+};
+
+static const unsigned char sync_v2[] = {
+	0x00, 0x02, 0x00, 0x2C,
+	0x00, 0x00, 0x02, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0xFF,
+	0xFE, 0x00, 0x00, 0x00,
+	0x00, 0x01, 0x00, 0x01,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00,
+};
+
+static void sendpacket(int sock, struct sockaddr *addr, socklen_t addr_len, int ptpv2)
+{
+	size_t sync_len = ptpv2 ? sizeof(sync_v2) : sizeof(sync);
+	const void *sync_p = ptpv2 ? sync_v2 : sync;
+	struct timeval now;
+	int res;
+
+	res = sendto(sock, sync_p, sync_len, 0, addr, addr_len);
+	gettimeofday(&now, 0);
+	if (res < 0)
+		printf("%s: %s\n", "send", strerror(errno));
+	else
+		printf("%ld.%06ld: sent %d bytes\n",
+		       (long)now.tv_sec, (long)now.tv_usec,
+		       res);
+}
+
+static void printpacket(struct msghdr *msg, int res,
+			char *data,
+			int sock, int recvmsg_flags,
+			int siocgstamp, int siocgstampns, int ptpv2)
+{
+	struct sockaddr_in *from_addr = (struct sockaddr_in *)msg->msg_name;
+	size_t sync_len = ptpv2 ? sizeof(sync_v2) : sizeof(sync);
+	const void *sync_p = ptpv2 ? sync_v2 : sync;
+	struct cmsghdr *cmsg;
+	struct timeval tv;
+	struct timespec ts;
+	struct timeval now;
+
+	gettimeofday(&now, 0);
+
+	printf("%ld.%06ld: received %s data, %d bytes from %s, %zu bytes control messages\n",
+	       (long)now.tv_sec, (long)now.tv_usec,
+	       (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+	       res,
+	       inet_ntoa(from_addr->sin_addr),
+	       msg->msg_controllen);
+	for (cmsg = CMSG_FIRSTHDR(msg);
+	     cmsg;
+	     cmsg = CMSG_NXTHDR(msg, cmsg)) {
+		printf("   cmsg len %zu: ", cmsg->cmsg_len);
+		switch (cmsg->cmsg_level) {
+		case SOL_SOCKET:
+			printf("SOL_SOCKET ");
+			switch (cmsg->cmsg_type) {
+			case SO_TIMESTAMP: {
+				struct timeval *stamp =
+					(struct timeval *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMP %ld.%06ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_usec);
+				break;
+			}
+			case SO_TIMESTAMPNS: {
+				struct timespec *stamp =
+					(struct timespec *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMPNS %ld.%09ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				break;
+			}
+			case SO_TIMESTAMPING: {
+				struct timespec *stamp =
+					(struct timespec *)CMSG_DATA(cmsg);
+				printf("SO_TIMESTAMPING ");
+				printf("SW %ld.%09ld ",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				stamp++;
+				/* skip deprecated HW transformed */
+				stamp++;
+				printf("HW raw %ld.%09ld",
+				       (long)stamp->tv_sec,
+				       (long)stamp->tv_nsec);
+				break;
+			}
+			default:
+				printf("type %d", cmsg->cmsg_type);
+				break;
+			}
+			break;
+		case IPPROTO_IP:
+			printf("IPPROTO_IP ");
+			switch (cmsg->cmsg_type) {
+			case IP_RECVERR: {
+				struct sock_extended_err *err =
+					(struct sock_extended_err *)CMSG_DATA(cmsg);
+				printf("IP_RECVERR ee_errno '%s' ee_origin %d => %s",
+					strerror(err->ee_errno),
+					err->ee_origin,
+#ifdef SO_EE_ORIGIN_TIMESTAMPING
+					err->ee_origin == SO_EE_ORIGIN_TIMESTAMPING ?
+					"bounced packet" : "unexpected origin"
+#else
+					"probably SO_EE_ORIGIN_TIMESTAMPING"
+#endif
+					);
+				if (res < sync_len)
+					printf(" => truncated data?!");
+				else if (!memcmp(sync_p, data + res - sync_len, sync_len))
+					printf(" => GOT OUR DATA BACK (HURRAY!)");
+				break;
+			}
+			case IP_PKTINFO: {
+				struct in_pktinfo *pktinfo =
+					(struct in_pktinfo *)CMSG_DATA(cmsg);
+				printf("IP_PKTINFO interface index %u",
+					pktinfo->ipi_ifindex);
+				break;
+			}
+			default:
+				printf("type %d", cmsg->cmsg_type);
+				break;
+			}
+			break;
+		default:
+			printf("level %d type %d",
+				cmsg->cmsg_level,
+				cmsg->cmsg_type);
+			break;
+		}
+		printf("\n");
+	}
+
+	if (siocgstamp) {
+		if (ioctl(sock, SIOCGSTAMP, &tv))
+			printf("   %s: %s\n", "SIOCGSTAMP", strerror(errno));
+		else
+			printf("SIOCGSTAMP %ld.%06ld\n",
+			       (long)tv.tv_sec,
+			       (long)tv.tv_usec);
+	}
+	if (siocgstampns) {
+		if (ioctl(sock, SIOCGSTAMPNS, &ts))
+			printf("   %s: %s\n", "SIOCGSTAMPNS", strerror(errno));
+		else
+			printf("SIOCGSTAMPNS %ld.%09ld\n",
+			       (long)ts.tv_sec,
+			       (long)ts.tv_nsec);
+	}
+}
+
+static void recvpacket(int sock, int recvmsg_flags,
+		       int siocgstamp, int siocgstampns, int ptpv2)
+{
+	char data[256];
+	struct msghdr msg;
+	struct iovec entry;
+	struct sockaddr_in from_addr;
+	struct {
+		struct cmsghdr cm;
+		char control[512];
+	} control;
+	int res;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.msg_iov = &entry;
+	msg.msg_iovlen = 1;
+	entry.iov_base = data;
+	entry.iov_len = sizeof(data);
+	msg.msg_name = (caddr_t)&from_addr;
+	msg.msg_namelen = sizeof(from_addr);
+	msg.msg_control = &control;
+	msg.msg_controllen = sizeof(control);
+
+	res = recvmsg(sock, &msg, recvmsg_flags|MSG_DONTWAIT);
+	if (res < 0) {
+		printf("%s %s: %s\n",
+		       "recvmsg",
+		       (recvmsg_flags & MSG_ERRQUEUE) ? "error" : "regular",
+		       strerror(errno));
+	} else {
+		printpacket(&msg, res, data,
+			    sock, recvmsg_flags,
+			    siocgstamp, siocgstampns, ptpv2);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	int so_timestamp = 0;
+	int so_timestampns = 0;
+	int siocgstamp = 0;
+	int siocgstampns = 0;
+	int ip_multicast_loop = 0;
+	int ptpv2 = 0;
+	char *interface;
+	int i;
+	int enabled = 1;
+	int sock;
+	struct ifreq device;
+	struct ifreq hwtstamp;
+	struct hwtstamp_config hwconfig, hwconfig_requested;
+	struct so_timestamping so_timestamping_get = { 0, 0 };
+	struct so_timestamping so_timestamping = { 0, 0 };
+	struct sockaddr_in addr;
+	struct ip_mreq imr;
+	struct in_addr iaddr;
+	int val;
+	socklen_t len;
+	struct timeval next;
+	size_t if_len;
+
+	if (argc < 2)
+		usage(0);
+	interface = argv[1];
+	if_len = strlen(interface);
+	if (if_len >= IFNAMSIZ) {
+		printf("interface name exceeds IFNAMSIZ\n");
+		exit(1);
+	}
+
+	if (argc >= 3 && sscanf(argv[2], "%d", &so_timestamping.bind_phc) == 1)
+		val = 3;
+	else
+		val = 2;
+
+	for (i = val; i < argc; i++) {
+		if (!strcasecmp(argv[i], "SO_TIMESTAMP"))
+			so_timestamp = 1;
+		else if (!strcasecmp(argv[i], "SO_TIMESTAMPNS"))
+			so_timestampns = 1;
+		else if (!strcasecmp(argv[i], "SIOCGSTAMP"))
+			siocgstamp = 1;
+		else if (!strcasecmp(argv[i], "SIOCGSTAMPNS"))
+			siocgstampns = 1;
+		else if (!strcasecmp(argv[i], "IP_MULTICAST_LOOP"))
+			ip_multicast_loop = 1;
+		else if (!strcasecmp(argv[i], "PTPV2"))
+			ptpv2 = 1;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_HARDWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_TX_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_TX_SOFTWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_TX_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_HARDWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_RX_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RX_SOFTWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_RX_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_SOFTWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_SOFTWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_RAW_HARDWARE"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_RAW_HARDWARE;
+		else if (!strcasecmp(argv[i], "SOF_TIMESTAMPING_BIND_PHC"))
+			so_timestamping.flags |= SOF_TIMESTAMPING_BIND_PHC;
+		else
+			usage(argv[i]);
+	}
+
+	sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+	if (sock < 0)
+		bail("socket");
+
+	memset(&device, 0, sizeof(device));
+	memcpy(device.ifr_name, interface, if_len + 1);
+	if (ioctl(sock, SIOCGIFADDR, &device) < 0)
+		bail("getting interface IP address");
+
+	memset(&hwtstamp, 0, sizeof(hwtstamp));
+	memcpy(hwtstamp.ifr_name, interface, if_len + 1);
+	hwtstamp.ifr_data = (void *)&hwconfig;
+	memset(&hwconfig, 0, sizeof(hwconfig));
+	hwconfig.tx_type =
+		(so_timestamping.flags & SOF_TIMESTAMPING_TX_HARDWARE) ?
+		HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
+	hwconfig.rx_filter =
+		(so_timestamping.flags & SOF_TIMESTAMPING_RX_HARDWARE) ?
+		ptpv2 ? HWTSTAMP_FILTER_PTP_V2_L4_SYNC :
+		HWTSTAMP_FILTER_PTP_V1_L4_SYNC : HWTSTAMP_FILTER_NONE;
+	hwconfig_requested = hwconfig;
+	if (ioctl(sock, SIOCSHWTSTAMP, &hwtstamp) < 0) {
+		if ((errno == EINVAL || errno == ENOTSUP) &&
+		    hwconfig_requested.tx_type == HWTSTAMP_TX_OFF &&
+		    hwconfig_requested.rx_filter == HWTSTAMP_FILTER_NONE)
+			printf("SIOCSHWTSTAMP: disabling hardware time stamping not possible\n");
+		else
+			bail("SIOCSHWTSTAMP");
+	}
+	printf("SIOCSHWTSTAMP: tx_type %d requested, got %d; rx_filter %d requested, got %d\n",
+	       hwconfig_requested.tx_type, hwconfig.tx_type,
+	       hwconfig_requested.rx_filter, hwconfig.rx_filter);
+
+	/* bind to PTP port */
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = htons(319 /* PTP event port */);
+	if (bind(sock,
+		 (struct sockaddr *)&addr,
+		 sizeof(struct sockaddr_in)) < 0)
+		bail("bind");
+
+	if (setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, interface, if_len))
+		bail("bind device");
+
+	/* set multicast group for outgoing packets */
+	inet_aton("224.0.1.130", &iaddr); /* alternate PTP domain 1 */
+	addr.sin_addr = iaddr;
+	imr.imr_multiaddr.s_addr = iaddr.s_addr;
+	imr.imr_interface.s_addr =
+		((struct sockaddr_in *)&device.ifr_addr)->sin_addr.s_addr;
+	if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_IF,
+		       &imr.imr_interface.s_addr, sizeof(struct in_addr)) < 0)
+		bail("set multicast");
+
+	/* join multicast group, loop our own packet */
+	if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP,
+		       &imr, sizeof(struct ip_mreq)) < 0)
+		bail("join multicast group");
+
+	if (setsockopt(sock, IPPROTO_IP, IP_MULTICAST_LOOP,
+		       &ip_multicast_loop, sizeof(enabled)) < 0) {
+		bail("loop multicast");
+	}
+
+	/* set socket options for time stamping */
+	if (so_timestamp &&
+		setsockopt(sock, SOL_SOCKET, SO_TIMESTAMP,
+			   &enabled, sizeof(enabled)) < 0)
+		bail("setsockopt SO_TIMESTAMP");
+
+	if (so_timestampns &&
+		setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS,
+			   &enabled, sizeof(enabled)) < 0)
+		bail("setsockopt SO_TIMESTAMPNS");
+
+	if (so_timestamping.flags &&
+	    setsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &so_timestamping,
+		       sizeof(so_timestamping)) < 0)
+		bail("setsockopt SO_TIMESTAMPING");
+
+	/* request IP_PKTINFO for debugging purposes */
+	if (setsockopt(sock, SOL_IP, IP_PKTINFO,
+		       &enabled, sizeof(enabled)) < 0)
+		printf("%s: %s\n", "setsockopt IP_PKTINFO", strerror(errno));
+
+	/* verify socket options */
+	len = sizeof(val);
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMP, &val, &len) < 0)
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMP", strerror(errno));
+	else
+		printf("SO_TIMESTAMP %d\n", val);
+
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPNS, &val, &len) < 0)
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMPNS",
+		       strerror(errno));
+	else
+		printf("SO_TIMESTAMPNS %d\n", val);
+
+	len = sizeof(so_timestamping_get);
+	if (getsockopt(sock, SOL_SOCKET, SO_TIMESTAMPING, &so_timestamping_get,
+		       &len) < 0) {
+		printf("%s: %s\n", "getsockopt SO_TIMESTAMPING",
+		       strerror(errno));
+	} else {
+		printf("SO_TIMESTAMPING flags %d, bind phc %d\n",
+		       so_timestamping_get.flags, so_timestamping_get.bind_phc);
+		if (so_timestamping_get.flags != so_timestamping.flags ||
+		    so_timestamping_get.bind_phc != so_timestamping.bind_phc)
+			printf("   not expected, flags %d, bind phc %d\n",
+			       so_timestamping.flags, so_timestamping.bind_phc);
+	}
+
+	/* send packets forever every five seconds */
+	gettimeofday(&next, 0);
+	next.tv_sec = (next.tv_sec + 1) / 5 * 5;
+	next.tv_usec = 0;
+	while (1) {
+		struct timeval now;
+		struct timeval delta;
+		long delta_us;
+		int res;
+		fd_set readfs, errorfs;
+
+		gettimeofday(&now, 0);
+		delta_us = (long)(next.tv_sec - now.tv_sec) * 1000000 +
+			(long)(next.tv_usec - now.tv_usec);
+		if (delta_us > 0) {
+			/* continue waiting for timeout or data */
+			delta.tv_sec = delta_us / 1000000;
+			delta.tv_usec = delta_us % 1000000;
+
+			FD_ZERO(&readfs);
+			FD_ZERO(&errorfs);
+			FD_SET(sock, &readfs);
+			FD_SET(sock, &errorfs);
+			printf("%ld.%06ld: select %ldus\n",
+			       (long)now.tv_sec, (long)now.tv_usec,
+			       delta_us);
+			res = select(sock + 1, &readfs, 0, &errorfs, &delta);
+			gettimeofday(&now, 0);
+			printf("%ld.%06ld: select returned: %d, %s\n",
+			       (long)now.tv_sec, (long)now.tv_usec,
+			       res,
+			       res < 0 ? strerror(errno) : "success");
+			if (res > 0) {
+				if (FD_ISSET(sock, &readfs))
+					printf("ready for reading\n");
+				if (FD_ISSET(sock, &errorfs))
+					printf("has error\n");
+				recvpacket(sock, 0,
+					   siocgstamp,
+					   siocgstampns, ptpv2);
+				recvpacket(sock, MSG_ERRQUEUE,
+					   siocgstamp,
+					   siocgstampns, ptpv2);
+			}
+		} else {
+			/* write one packet */
+			sendpacket(sock,
+				   (struct sockaddr *)&addr,
+				   sizeof(addr), ptpv2);
+			next.tv_sec += 5;
+			continue;
+		}
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
new file mode 100644
index 000000000000..a3ef4b57eb5f
--- /dev/null
+++ b/tools/testing/selftests/net/tls.c
@@ -0,0 +1,3302 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <linux/tls.h>
+#include <linux/tcp.h>
+#include <linux/socket.h>
+
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/sendfile.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include "kselftest_harness.h"
+
+#define TLS_PAYLOAD_MAX_LEN 16384
+#define SOL_TLS 282
+
+static int fips_enabled;
+
+struct tls_crypto_info_keys {
+	union {
+		struct tls_crypto_info crypto_info;
+		struct tls12_crypto_info_aes_gcm_128 aes128;
+		struct tls12_crypto_info_chacha20_poly1305 chacha20;
+		struct tls12_crypto_info_sm4_gcm sm4gcm;
+		struct tls12_crypto_info_sm4_ccm sm4ccm;
+		struct tls12_crypto_info_aes_ccm_128 aesccm128;
+		struct tls12_crypto_info_aes_gcm_256 aesgcm256;
+		struct tls12_crypto_info_aria_gcm_128 ariagcm128;
+		struct tls12_crypto_info_aria_gcm_256 ariagcm256;
+	};
+	size_t len;
+};
+
+static void tls_crypto_info_init(uint16_t tls_version, uint16_t cipher_type,
+				 struct tls_crypto_info_keys *tls12,
+				 char key_generation)
+{
+	memset(tls12, key_generation, sizeof(*tls12));
+	memset(tls12, 0, sizeof(struct tls_crypto_info));
+
+	switch (cipher_type) {
+	case TLS_CIPHER_CHACHA20_POLY1305:
+		tls12->len = sizeof(struct tls12_crypto_info_chacha20_poly1305);
+		tls12->chacha20.info.version = tls_version;
+		tls12->chacha20.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_AES_GCM_128:
+		tls12->len = sizeof(struct tls12_crypto_info_aes_gcm_128);
+		tls12->aes128.info.version = tls_version;
+		tls12->aes128.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_SM4_GCM:
+		tls12->len = sizeof(struct tls12_crypto_info_sm4_gcm);
+		tls12->sm4gcm.info.version = tls_version;
+		tls12->sm4gcm.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_SM4_CCM:
+		tls12->len = sizeof(struct tls12_crypto_info_sm4_ccm);
+		tls12->sm4ccm.info.version = tls_version;
+		tls12->sm4ccm.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_AES_CCM_128:
+		tls12->len = sizeof(struct tls12_crypto_info_aes_ccm_128);
+		tls12->aesccm128.info.version = tls_version;
+		tls12->aesccm128.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_AES_GCM_256:
+		tls12->len = sizeof(struct tls12_crypto_info_aes_gcm_256);
+		tls12->aesgcm256.info.version = tls_version;
+		tls12->aesgcm256.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_ARIA_GCM_128:
+		tls12->len = sizeof(struct tls12_crypto_info_aria_gcm_128);
+		tls12->ariagcm128.info.version = tls_version;
+		tls12->ariagcm128.info.cipher_type = cipher_type;
+		break;
+	case TLS_CIPHER_ARIA_GCM_256:
+		tls12->len = sizeof(struct tls12_crypto_info_aria_gcm_256);
+		tls12->ariagcm256.info.version = tls_version;
+		tls12->ariagcm256.info.cipher_type = cipher_type;
+		break;
+	default:
+		break;
+	}
+}
+
+static void memrnd(void *s, size_t n)
+{
+	int *dword = s;
+	char *byte;
+
+	for (; n >= 4; n -= 4)
+		*dword++ = rand();
+	byte = (void *)dword;
+	while (n--)
+		*byte++ = rand();
+}
+
+static void ulp_sock_pair(struct __test_metadata *_metadata,
+			  int *fd, int *cfd, bool *notls)
+{
+	struct sockaddr_in addr;
+	socklen_t len;
+	int sfd, ret;
+
+	*notls = false;
+	len = sizeof(addr);
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+
+	*fd = socket(AF_INET, SOCK_STREAM, 0);
+	sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+	ret = bind(sfd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+	ret = listen(sfd, 10);
+	ASSERT_EQ(ret, 0);
+
+	ret = getsockname(sfd, &addr, &len);
+	ASSERT_EQ(ret, 0);
+
+	ret = connect(*fd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+
+	*cfd = accept(sfd, &addr, &len);
+	ASSERT_GE(*cfd, 0);
+
+	close(sfd);
+
+	ret = setsockopt(*fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (ret != 0) {
+		ASSERT_EQ(errno, ENOENT);
+		*notls = true;
+		printf("Failure setting TCP_ULP, testing without tls\n");
+		return;
+	}
+
+	ret = setsockopt(*cfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	ASSERT_EQ(ret, 0);
+}
+
+/* Produce a basic cmsg */
+static int tls_send_cmsg(int fd, unsigned char record_type,
+			 void *data, size_t len, int flags)
+{
+	char cbuf[CMSG_SPACE(sizeof(char))];
+	int cmsg_len = sizeof(char);
+	struct cmsghdr *cmsg;
+	struct msghdr msg;
+	struct iovec vec;
+
+	vec.iov_base = data;
+	vec.iov_len = len;
+	memset(&msg, 0, sizeof(struct msghdr));
+	msg.msg_iov = &vec;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cbuf;
+	msg.msg_controllen = sizeof(cbuf);
+	cmsg = CMSG_FIRSTHDR(&msg);
+	cmsg->cmsg_level = SOL_TLS;
+	/* test sending non-record types. */
+	cmsg->cmsg_type = TLS_SET_RECORD_TYPE;
+	cmsg->cmsg_len = CMSG_LEN(cmsg_len);
+	*CMSG_DATA(cmsg) = record_type;
+	msg.msg_controllen = cmsg->cmsg_len;
+
+	return sendmsg(fd, &msg, flags);
+}
+
+static int __tls_recv_cmsg(struct __test_metadata *_metadata,
+			   int fd, unsigned char *ctype,
+			   void *data, size_t len, int flags)
+{
+	char cbuf[CMSG_SPACE(sizeof(char))];
+	struct cmsghdr *cmsg;
+	struct msghdr msg;
+	struct iovec vec;
+	int n;
+
+	vec.iov_base = data;
+	vec.iov_len = len;
+	memset(&msg, 0, sizeof(struct msghdr));
+	msg.msg_iov = &vec;
+	msg.msg_iovlen = 1;
+	msg.msg_control = cbuf;
+	msg.msg_controllen = sizeof(cbuf);
+
+	n = recvmsg(fd, &msg, flags);
+
+	cmsg = CMSG_FIRSTHDR(&msg);
+	EXPECT_NE(cmsg, NULL);
+	EXPECT_EQ(cmsg->cmsg_level, SOL_TLS);
+	EXPECT_EQ(cmsg->cmsg_type, TLS_GET_RECORD_TYPE);
+	if (ctype)
+		*ctype = *((unsigned char *)CMSG_DATA(cmsg));
+
+	return n;
+}
+
+static int tls_recv_cmsg(struct __test_metadata *_metadata,
+			 int fd, unsigned char record_type,
+			 void *data, size_t len, int flags)
+{
+	unsigned char ctype;
+	int n;
+
+	n = __tls_recv_cmsg(_metadata, fd, &ctype, data, len, flags);
+	EXPECT_EQ(ctype, record_type);
+
+	return n;
+}
+
+FIXTURE(tls_basic)
+{
+	int fd, cfd;
+	bool notls;
+};
+
+FIXTURE_SETUP(tls_basic)
+{
+	ulp_sock_pair(_metadata, &self->fd, &self->cfd, &self->notls);
+}
+
+FIXTURE_TEARDOWN(tls_basic)
+{
+	close(self->fd);
+	close(self->cfd);
+}
+
+/* Send some data through with ULP but no keys */
+TEST_F(tls_basic, base_base)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+
+	ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+};
+
+TEST_F(tls_basic, bad_cipher)
+{
+	struct tls_crypto_info_keys tls12;
+
+	tls12.crypto_info.version = 200;
+	tls12.crypto_info.cipher_type = TLS_CIPHER_AES_GCM_128;
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
+
+	tls12.crypto_info.version = TLS_1_2_VERSION;
+	tls12.crypto_info.cipher_type = 50;
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
+
+	tls12.crypto_info.version = TLS_1_2_VERSION;
+	tls12.crypto_info.cipher_type = 59;
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
+
+	tls12.crypto_info.version = TLS_1_2_VERSION;
+	tls12.crypto_info.cipher_type = 10;
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
+
+	tls12.crypto_info.version = TLS_1_2_VERSION;
+	tls12.crypto_info.cipher_type = 70;
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, sizeof(struct tls12_crypto_info_aes_gcm_128)), -1);
+}
+
+TEST_F(tls_basic, recseq_wrap)
+{
+	struct tls_crypto_info_keys tls12;
+	char const *test_str = "test_read";
+	int send_len = 10;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_GCM_128, &tls12, 0);
+	memset(&tls12.aes128.rec_seq, 0xff, sizeof(tls12.aes128.rec_seq));
+
+	ASSERT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+	ASSERT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+}
+
+FIXTURE(tls)
+{
+	int fd, cfd;
+	bool notls;
+};
+
+FIXTURE_VARIANT(tls)
+{
+	uint16_t tls_version;
+	uint16_t cipher_type;
+	bool nopad, fips_non_compliant;
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_aes_gcm)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_128,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_aes_gcm)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_128,
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_chacha)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_CHACHA20_POLY1305,
+	.fips_non_compliant = true,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_chacha)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_CHACHA20_POLY1305,
+	.fips_non_compliant = true,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_sm4_gcm)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_SM4_GCM,
+	.fips_non_compliant = true,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_sm4_ccm)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_SM4_CCM,
+	.fips_non_compliant = true,
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_aes_ccm)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_AES_CCM_128,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_aes_ccm)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_AES_CCM_128,
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_aes_gcm_256)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_256,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_aes_gcm_256)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_256,
+};
+
+FIXTURE_VARIANT_ADD(tls, 13_nopad)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_128,
+	.nopad = true,
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_aria_gcm)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_ARIA_GCM_128,
+};
+
+FIXTURE_VARIANT_ADD(tls, 12_aria_gcm_256)
+{
+	.tls_version = TLS_1_2_VERSION,
+	.cipher_type = TLS_CIPHER_ARIA_GCM_256,
+};
+
+FIXTURE_SETUP(tls)
+{
+	struct tls_crypto_info_keys tls12;
+	int one = 1;
+	int ret;
+
+	if (fips_enabled && variant->fips_non_compliant)
+		SKIP(return, "Unsupported cipher in FIPS mode");
+
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+			     &tls12, 0);
+
+	ulp_sock_pair(_metadata, &self->fd, &self->cfd, &self->notls);
+
+	if (self->notls)
+		return;
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	if (variant->nopad) {
+		ret = setsockopt(self->cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+				 (void *)&one, sizeof(one));
+		ASSERT_EQ(ret, 0);
+	}
+}
+
+FIXTURE_TEARDOWN(tls)
+{
+	close(self->fd);
+	close(self->cfd);
+}
+
+TEST_F(tls, sendfile)
+{
+	int filefd = open("/proc/self/exe", O_RDONLY);
+	struct stat st;
+
+	EXPECT_GE(filefd, 0);
+	fstat(filefd, &st);
+	EXPECT_GE(sendfile(self->fd, filefd, 0, st.st_size), 0);
+
+	close(filefd);
+}
+
+TEST_F(tls, send_then_sendfile)
+{
+	int filefd = open("/proc/self/exe", O_RDONLY);
+	char const *test_str = "test_send";
+	int to_send = strlen(test_str) + 1;
+	char recv_buf[10];
+	struct stat st;
+	char *buf;
+
+	EXPECT_GE(filefd, 0);
+	fstat(filefd, &st);
+	buf = (char *)malloc(st.st_size);
+
+	EXPECT_EQ(send(self->fd, test_str, to_send, 0), to_send);
+	EXPECT_EQ(recv(self->cfd, recv_buf, to_send, MSG_WAITALL), to_send);
+	EXPECT_EQ(memcmp(test_str, recv_buf, to_send), 0);
+
+	EXPECT_GE(sendfile(self->fd, filefd, 0, st.st_size), 0);
+	EXPECT_EQ(recv(self->cfd, buf, st.st_size, MSG_WAITALL), st.st_size);
+
+	free(buf);
+	close(filefd);
+}
+
+static void chunked_sendfile(struct __test_metadata *_metadata,
+			     struct _test_data_tls *self,
+			     uint16_t chunk_size,
+			     uint16_t extra_payload_size)
+{
+	char buf[TLS_PAYLOAD_MAX_LEN];
+	uint16_t test_payload_size;
+	int size = 0;
+	int ret;
+	char filename[] = "/tmp/mytemp.XXXXXX";
+	int fd = mkstemp(filename);
+	off_t offset = 0;
+
+	unlink(filename);
+	ASSERT_GE(fd, 0);
+	EXPECT_GE(chunk_size, 1);
+	test_payload_size = chunk_size + extra_payload_size;
+	ASSERT_GE(TLS_PAYLOAD_MAX_LEN, test_payload_size);
+	memset(buf, 1, test_payload_size);
+	size = write(fd, buf, test_payload_size);
+	EXPECT_EQ(size, test_payload_size);
+	fsync(fd);
+
+	while (size > 0) {
+		ret = sendfile(self->fd, fd, &offset, chunk_size);
+		EXPECT_GE(ret, 0);
+		size -= ret;
+	}
+
+	EXPECT_EQ(recv(self->cfd, buf, test_payload_size, MSG_WAITALL),
+		  test_payload_size);
+
+	close(fd);
+}
+
+TEST_F(tls, multi_chunk_sendfile)
+{
+	chunked_sendfile(_metadata, self, 4096, 4096);
+	chunked_sendfile(_metadata, self, 4096, 0);
+	chunked_sendfile(_metadata, self, 4096, 1);
+	chunked_sendfile(_metadata, self, 4096, 2048);
+	chunked_sendfile(_metadata, self, 8192, 2048);
+	chunked_sendfile(_metadata, self, 4096, 8192);
+	chunked_sendfile(_metadata, self, 8192, 4096);
+	chunked_sendfile(_metadata, self, 12288, 1024);
+	chunked_sendfile(_metadata, self, 12288, 2000);
+	chunked_sendfile(_metadata, self, 15360, 100);
+	chunked_sendfile(_metadata, self, 15360, 300);
+	chunked_sendfile(_metadata, self, 1, 4096);
+	chunked_sendfile(_metadata, self, 2048, 4096);
+	chunked_sendfile(_metadata, self, 2048, 8192);
+	chunked_sendfile(_metadata, self, 4096, 8192);
+	chunked_sendfile(_metadata, self, 1024, 12288);
+	chunked_sendfile(_metadata, self, 2000, 12288);
+	chunked_sendfile(_metadata, self, 100, 15360);
+	chunked_sendfile(_metadata, self, 300, 15360);
+}
+
+TEST_F(tls, recv_max)
+{
+	unsigned int send_len = TLS_PAYLOAD_MAX_LEN;
+	char recv_mem[TLS_PAYLOAD_MAX_LEN];
+	char buf[TLS_PAYLOAD_MAX_LEN];
+
+	memrnd(buf, sizeof(buf));
+
+	EXPECT_GE(send(self->fd, buf, send_len, 0), 0);
+	EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0);
+}
+
+TEST_F(tls, recv_small)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+
+	send_len = strlen(test_str) + 1;
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, msg_more)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10 * 2];
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_DONTWAIT), -1);
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len * 2, MSG_WAITALL),
+		  send_len * 2);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, cmsg_msg_more)
+{
+	char *test_str =  "test_read";
+	char record_type = 100;
+	int send_len = 10;
+
+	/* we don't allow MSG_MORE with non-DATA records */
+	EXPECT_EQ(tls_send_cmsg(self->fd, record_type, test_str, send_len,
+				MSG_MORE), -1);
+	EXPECT_EQ(errno, EINVAL);
+}
+
+TEST_F(tls, msg_more_then_cmsg)
+{
+	char *test_str = "test_read";
+	char record_type = 100;
+	int send_len = 10;
+	char buf[10 * 2];
+	int ret;
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_DONTWAIT), -1);
+
+	ret = tls_send_cmsg(self->fd, record_type, test_str, send_len, 0);
+	EXPECT_EQ(ret, send_len);
+
+	/* initial DATA record didn't get merged with the non-DATA record */
+	EXPECT_EQ(recv(self->cfd, buf, send_len * 2, 0), send_len);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+				buf, sizeof(buf), MSG_WAITALL),
+		  send_len);
+}
+
+TEST_F(tls, msg_more_unsent)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_DONTWAIT), -1);
+}
+
+TEST_F(tls, msg_eor)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, MSG_EOR), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_WAITALL), send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, sendmsg_single)
+{
+	struct msghdr msg;
+
+	char const *test_str = "test_sendmsg";
+	size_t send_len = 13;
+	struct iovec vec;
+	char buf[13];
+
+	vec.iov_base = (char *)test_str;
+	vec.iov_len = send_len;
+	memset(&msg, 0, sizeof(struct msghdr));
+	msg.msg_iov = &vec;
+	msg.msg_iovlen = 1;
+	EXPECT_EQ(sendmsg(self->fd, &msg, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_WAITALL), send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+#define MAX_FRAGS	64
+#define SEND_LEN	13
+TEST_F(tls, sendmsg_fragmented)
+{
+	char const *test_str = "test_sendmsg";
+	char buf[SEND_LEN * MAX_FRAGS];
+	struct iovec vec[MAX_FRAGS];
+	struct msghdr msg;
+	int i, frags;
+
+	for (frags = 1; frags <= MAX_FRAGS; frags++) {
+		for (i = 0; i < frags; i++) {
+			vec[i].iov_base = (char *)test_str;
+			vec[i].iov_len = SEND_LEN;
+		}
+
+		memset(&msg, 0, sizeof(struct msghdr));
+		msg.msg_iov = vec;
+		msg.msg_iovlen = frags;
+
+		EXPECT_EQ(sendmsg(self->fd, &msg, 0), SEND_LEN * frags);
+		EXPECT_EQ(recv(self->cfd, buf, SEND_LEN * frags, MSG_WAITALL),
+			  SEND_LEN * frags);
+
+		for (i = 0; i < frags; i++)
+			EXPECT_EQ(memcmp(buf + SEND_LEN * i,
+					 test_str, SEND_LEN), 0);
+	}
+}
+#undef MAX_FRAGS
+#undef SEND_LEN
+
+TEST_F(tls, sendmsg_large)
+{
+	void *mem = malloc(16384);
+	size_t send_len = 16384;
+	size_t sends = 128;
+	struct msghdr msg;
+	size_t recvs = 0;
+	size_t sent = 0;
+
+	memset(&msg, 0, sizeof(struct msghdr));
+	while (sent++ < sends) {
+		struct iovec vec = { (void *)mem, send_len };
+
+		msg.msg_iov = &vec;
+		msg.msg_iovlen = 1;
+		EXPECT_EQ(sendmsg(self->fd, &msg, 0), send_len);
+	}
+
+	while (recvs++ < sends) {
+		EXPECT_NE(recv(self->cfd, mem, send_len, 0), -1);
+	}
+
+	free(mem);
+}
+
+TEST_F(tls, sendmsg_multiple)
+{
+	char const *test_str = "test_sendmsg_multiple";
+	struct iovec vec[5];
+	char *test_strs[5];
+	struct msghdr msg;
+	int total_len = 0;
+	int len_cmp = 0;
+	int iov_len = 5;
+	char *buf;
+	int i;
+
+	memset(&msg, 0, sizeof(struct msghdr));
+	for (i = 0; i < iov_len; i++) {
+		test_strs[i] = (char *)malloc(strlen(test_str) + 1);
+		snprintf(test_strs[i], strlen(test_str) + 1, "%s", test_str);
+		vec[i].iov_base = (void *)test_strs[i];
+		vec[i].iov_len = strlen(test_strs[i]) + 1;
+		total_len += vec[i].iov_len;
+	}
+	msg.msg_iov = vec;
+	msg.msg_iovlen = iov_len;
+
+	EXPECT_EQ(sendmsg(self->fd, &msg, 0), total_len);
+	buf = malloc(total_len);
+	EXPECT_NE(recv(self->cfd, buf, total_len, 0), -1);
+	for (i = 0; i < iov_len; i++) {
+		EXPECT_EQ(memcmp(test_strs[i], buf + len_cmp,
+				 strlen(test_strs[i])),
+			  0);
+		len_cmp += strlen(buf + len_cmp) + 1;
+	}
+	for (i = 0; i < iov_len; i++)
+		free(test_strs[i]);
+	free(buf);
+}
+
+TEST_F(tls, sendmsg_multiple_stress)
+{
+	char const *test_str = "abcdefghijklmno";
+	struct iovec vec[1024];
+	char *test_strs[1024];
+	int iov_len = 1024;
+	int total_len = 0;
+	char buf[1 << 14];
+	struct msghdr msg;
+	int len_cmp = 0;
+	int i;
+
+	memset(&msg, 0, sizeof(struct msghdr));
+	for (i = 0; i < iov_len; i++) {
+		test_strs[i] = (char *)malloc(strlen(test_str) + 1);
+		snprintf(test_strs[i], strlen(test_str) + 1, "%s", test_str);
+		vec[i].iov_base = (void *)test_strs[i];
+		vec[i].iov_len = strlen(test_strs[i]) + 1;
+		total_len += vec[i].iov_len;
+	}
+	msg.msg_iov = vec;
+	msg.msg_iovlen = iov_len;
+
+	EXPECT_EQ(sendmsg(self->fd, &msg, 0), total_len);
+	EXPECT_NE(recv(self->cfd, buf, total_len, 0), -1);
+
+	for (i = 0; i < iov_len; i++)
+		len_cmp += strlen(buf + len_cmp) + 1;
+
+	for (i = 0; i < iov_len; i++)
+		free(test_strs[i]);
+}
+
+TEST_F(tls, splice_from_pipe)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	int p[2];
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_GE(write(p[1], mem_send, send_len), 0);
+	EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), 0);
+	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, splice_more)
+{
+	unsigned int f = SPLICE_F_NONBLOCK | SPLICE_F_MORE | SPLICE_F_GIFT;
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	int i, send_pipe = 1;
+	int p[2];
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_GE(write(p[1], mem_send, send_len), 0);
+	for (i = 0; i < 32; i++)
+		EXPECT_EQ(splice(p[0], NULL, self->fd, NULL, send_pipe, f), 1);
+}
+
+TEST_F(tls, splice_from_pipe2)
+{
+	int send_len = 16000;
+	char mem_send[16000];
+	char mem_recv[16000];
+	int p2[2];
+	int p[2];
+
+	memrnd(mem_send, sizeof(mem_send));
+
+	ASSERT_GE(pipe(p), 0);
+	ASSERT_GE(pipe(p2), 0);
+	EXPECT_EQ(write(p[1], mem_send, 8000), 8000);
+	EXPECT_EQ(splice(p[0], NULL, self->fd, NULL, 8000, 0), 8000);
+	EXPECT_EQ(write(p2[1], mem_send + 8000, 8000), 8000);
+	EXPECT_EQ(splice(p2[0], NULL, self->fd, NULL, 8000, 0), 8000);
+	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, send_and_splice)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	char const *test_str = "test_read";
+	int send_len2 = 10;
+	char buf[10];
+	int p[2];
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(send(self->fd, test_str, send_len2, 0), send_len2);
+	EXPECT_EQ(recv(self->cfd, buf, send_len2, MSG_WAITALL), send_len2);
+	EXPECT_EQ(memcmp(test_str, buf, send_len2), 0);
+
+	EXPECT_GE(write(p[1], mem_send, send_len), send_len);
+	EXPECT_GE(splice(p[0], NULL, self->fd, NULL, send_len, 0), send_len);
+
+	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, splice_to_pipe)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	int p[2];
+
+	memrnd(mem_send, sizeof(mem_send));
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(send(self->fd, mem_send, send_len, 0), send_len);
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, splice_cmsg_to_pipe)
+{
+	char *test_str = "test_read";
+	char record_type = 100;
+	int send_len = 10;
+	char buf[10];
+	int p[2];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, test_str, send_len, 0), 10);
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), -1);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(errno, EIO);
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+				buf, sizeof(buf), MSG_WAITALL),
+		  send_len);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, splice_dec_cmsg_to_pipe)
+{
+	char *test_str = "test_read";
+	char record_type = 100;
+	int send_len = 10;
+	char buf[10];
+	int p[2];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, test_str, send_len, 0), 10);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(errno, EIO);
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), -1);
+	EXPECT_EQ(errno, EINVAL);
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+				buf, sizeof(buf), MSG_WAITALL),
+		  send_len);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recv_and_splice)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	int half = send_len / 2;
+	int p[2];
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(send(self->fd, mem_send, send_len, 0), send_len);
+	/* Recv hald of the record, splice the other half */
+	EXPECT_EQ(recv(self->cfd, mem_recv, half, MSG_WAITALL), half);
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, half, SPLICE_F_NONBLOCK),
+		  half);
+	EXPECT_EQ(read(p[0], &mem_recv[half], half), half);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, peek_and_splice)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	int chunk = TLS_PAYLOAD_MAX_LEN / 4;
+	int n, i, p[2];
+
+	memrnd(mem_send, sizeof(mem_send));
+
+	ASSERT_GE(pipe(p), 0);
+	for (i = 0; i < 4; i++)
+		EXPECT_EQ(send(self->fd, &mem_send[chunk * i], chunk, 0),
+			  chunk);
+
+	EXPECT_EQ(recv(self->cfd, mem_recv, chunk * 5 / 2,
+		       MSG_WAITALL | MSG_PEEK),
+		  chunk * 5 / 2);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, chunk * 5 / 2), 0);
+
+	n = 0;
+	while (n < send_len) {
+		i = splice(self->cfd, NULL, p[1], NULL, send_len - n, 0);
+		EXPECT_GT(i, 0);
+		n += i;
+	}
+	EXPECT_EQ(n, send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+#define MAX_FRAGS 48
+TEST_F(tls, splice_short)
+{
+	struct iovec sendchar_iov;
+	char read_buf[0x10000];
+	char sendbuf[0x100];
+	char sendchar = 'S';
+	int pipefds[2];
+	int i;
+
+	sendchar_iov.iov_base = &sendchar;
+	sendchar_iov.iov_len = 1;
+
+	memset(sendbuf, 's', sizeof(sendbuf));
+
+	ASSERT_GE(pipe2(pipefds, O_NONBLOCK), 0);
+	ASSERT_GE(fcntl(pipefds[0], F_SETPIPE_SZ, (MAX_FRAGS + 1) * 0x1000), 0);
+
+	for (i = 0; i < MAX_FRAGS; i++)
+		ASSERT_GE(vmsplice(pipefds[1], &sendchar_iov, 1, 0), 0);
+
+	ASSERT_EQ(write(pipefds[1], sendbuf, sizeof(sendbuf)), sizeof(sendbuf));
+
+	EXPECT_EQ(splice(pipefds[0], NULL, self->fd, NULL, MAX_FRAGS + 0x1000, 0),
+		  MAX_FRAGS + sizeof(sendbuf));
+	EXPECT_EQ(recv(self->cfd, read_buf, sizeof(read_buf), 0), MAX_FRAGS + sizeof(sendbuf));
+	EXPECT_EQ(recv(self->cfd, read_buf, sizeof(read_buf), MSG_DONTWAIT), -1);
+	EXPECT_EQ(errno, EAGAIN);
+}
+#undef MAX_FRAGS
+
+TEST_F(tls, recvmsg_single)
+{
+	char const *test_str = "test_recvmsg_single";
+	int send_len = strlen(test_str) + 1;
+	char buf[20];
+	struct msghdr hdr;
+	struct iovec vec;
+
+	memset(&hdr, 0, sizeof(hdr));
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	vec.iov_base = (char *)buf;
+	vec.iov_len = send_len;
+	hdr.msg_iovlen = 1;
+	hdr.msg_iov = &vec;
+	EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recvmsg_single_max)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN;
+	char send_mem[TLS_PAYLOAD_MAX_LEN];
+	char recv_mem[TLS_PAYLOAD_MAX_LEN];
+	struct iovec vec;
+	struct msghdr hdr;
+
+	memrnd(send_mem, sizeof(send_mem));
+
+	EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len);
+	vec.iov_base = (char *)recv_mem;
+	vec.iov_len = TLS_PAYLOAD_MAX_LEN;
+
+	hdr.msg_iovlen = 1;
+	hdr.msg_iov = &vec;
+	EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+	EXPECT_EQ(memcmp(send_mem, recv_mem, send_len), 0);
+}
+
+TEST_F(tls, recvmsg_multiple)
+{
+	unsigned int msg_iovlen = 1024;
+	struct iovec vec[1024];
+	char *iov_base[1024];
+	unsigned int iov_len = 16;
+	int send_len = 1 << 14;
+	char buf[1 << 14];
+	struct msghdr hdr;
+	int i;
+
+	memrnd(buf, sizeof(buf));
+
+	EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len);
+	for (i = 0; i < msg_iovlen; i++) {
+		iov_base[i] = (char *)malloc(iov_len);
+		vec[i].iov_base = iov_base[i];
+		vec[i].iov_len = iov_len;
+	}
+
+	hdr.msg_iovlen = msg_iovlen;
+	hdr.msg_iov = vec;
+	EXPECT_NE(recvmsg(self->cfd, &hdr, 0), -1);
+
+	for (i = 0; i < msg_iovlen; i++)
+		free(iov_base[i]);
+}
+
+TEST_F(tls, single_send_multiple_recv)
+{
+	unsigned int total_len = TLS_PAYLOAD_MAX_LEN * 2;
+	unsigned int send_len = TLS_PAYLOAD_MAX_LEN;
+	char send_mem[TLS_PAYLOAD_MAX_LEN * 2];
+	char recv_mem[TLS_PAYLOAD_MAX_LEN * 2];
+
+	memrnd(send_mem, sizeof(send_mem));
+
+	EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
+	memset(recv_mem, 0, total_len);
+
+	EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1);
+	EXPECT_NE(recv(self->cfd, recv_mem + send_len, send_len, 0), -1);
+	EXPECT_EQ(memcmp(send_mem, recv_mem, total_len), 0);
+}
+
+TEST_F(tls, multiple_send_single_recv)
+{
+	unsigned int total_len = 2 * 10;
+	unsigned int send_len = 10;
+	char recv_mem[2 * 10];
+	char send_mem[10];
+
+	memrnd(send_mem, sizeof(send_mem));
+
+	EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
+	EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
+	memset(recv_mem, 0, total_len);
+	EXPECT_EQ(recv(self->cfd, recv_mem, total_len, MSG_WAITALL), total_len);
+
+	EXPECT_EQ(memcmp(send_mem, recv_mem, send_len), 0);
+	EXPECT_EQ(memcmp(send_mem, recv_mem + send_len, send_len), 0);
+}
+
+TEST_F(tls, single_send_multiple_recv_non_align)
+{
+	const unsigned int total_len = 15;
+	const unsigned int recv_len = 10;
+	char recv_mem[recv_len * 2];
+	char send_mem[total_len];
+
+	memrnd(send_mem, sizeof(send_mem));
+
+	EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
+	memset(recv_mem, 0, total_len);
+
+	EXPECT_EQ(recv(self->cfd, recv_mem, recv_len, 0), recv_len);
+	EXPECT_EQ(recv(self->cfd, recv_mem + recv_len, recv_len, 0), 5);
+	EXPECT_EQ(memcmp(send_mem, recv_mem, total_len), 0);
+}
+
+TEST_F(tls, recv_partial)
+{
+	char const *test_str = "test_read_partial";
+	char const *test_str_first = "test_read";
+	char const *test_str_second = "_partial";
+	int send_len = strlen(test_str) + 1;
+	char recv_mem[18];
+
+	memset(recv_mem, 0, sizeof(recv_mem));
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, recv_mem, strlen(test_str_first),
+		       MSG_WAITALL), strlen(test_str_first));
+	EXPECT_EQ(memcmp(test_str_first, recv_mem, strlen(test_str_first)), 0);
+	memset(recv_mem, 0, sizeof(recv_mem));
+	EXPECT_EQ(recv(self->cfd, recv_mem, strlen(test_str_second),
+		       MSG_WAITALL), strlen(test_str_second));
+	EXPECT_EQ(memcmp(test_str_second, recv_mem, strlen(test_str_second)),
+		  0);
+}
+
+TEST_F(tls, recv_nonblock)
+{
+	char buf[4096];
+	bool err;
+
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_DONTWAIT), -1);
+	err = (errno == EAGAIN || errno == EWOULDBLOCK);
+	EXPECT_EQ(err, true);
+}
+
+TEST_F(tls, recv_peek)
+{
+	char const *test_str = "test_read_peek";
+	int send_len = strlen(test_str) + 1;
+	char buf[15];
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_PEEK), send_len);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+	memset(buf, 0, sizeof(buf));
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recv_peek_multiple)
+{
+	char const *test_str = "test_read_peek";
+	int send_len = strlen(test_str) + 1;
+	unsigned int num_peeks = 100;
+	char buf[15];
+	int i;
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	for (i = 0; i < num_peeks; i++) {
+		EXPECT_NE(recv(self->cfd, buf, send_len, MSG_PEEK), -1);
+		EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+		memset(buf, 0, sizeof(buf));
+	}
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
+}
+
+TEST_F(tls, recv_peek_multiple_records)
+{
+	char const *test_str = "test_read_peek_mult_recs";
+	char const *test_str_first = "test_read_peek";
+	char const *test_str_second = "_mult_recs";
+	int len;
+	char buf[64];
+
+	len = strlen(test_str_first);
+	EXPECT_EQ(send(self->fd, test_str_first, len, 0), len);
+
+	len = strlen(test_str_second) + 1;
+	EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+	len = strlen(test_str_first);
+	memset(buf, 0, len);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
+
+	/* MSG_PEEK can only peek into the current record. */
+	len = strlen(test_str_first);
+	EXPECT_EQ(memcmp(test_str_first, buf, len), 0);
+
+	len = strlen(test_str) + 1;
+	memset(buf, 0, len);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_WAITALL), len);
+
+	/* Non-MSG_PEEK will advance strparser (and therefore record)
+	 * however.
+	 */
+	len = strlen(test_str) + 1;
+	EXPECT_EQ(memcmp(test_str, buf, len), 0);
+
+	/* MSG_MORE will hold current record open, so later MSG_PEEK
+	 * will see everything.
+	 */
+	len = strlen(test_str_first);
+	EXPECT_EQ(send(self->fd, test_str_first, len, MSG_MORE), len);
+
+	len = strlen(test_str_second) + 1;
+	EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+	len = strlen(test_str) + 1;
+	memset(buf, 0, len);
+	EXPECT_EQ(recv(self->cfd, buf, len, MSG_PEEK | MSG_WAITALL), len);
+
+	len = strlen(test_str) + 1;
+	EXPECT_EQ(memcmp(test_str, buf, len), 0);
+}
+
+TEST_F(tls, recv_peek_large_buf_mult_recs)
+{
+	char const *test_str = "test_read_peek_mult_recs";
+	char const *test_str_first = "test_read_peek";
+	char const *test_str_second = "_mult_recs";
+	int len;
+	char buf[64];
+
+	len = strlen(test_str_first);
+	EXPECT_EQ(send(self->fd, test_str_first, len, 0), len);
+
+	len = strlen(test_str_second) + 1;
+	EXPECT_EQ(send(self->fd, test_str_second, len, 0), len);
+
+	len = strlen(test_str) + 1;
+	memset(buf, 0, len);
+	EXPECT_NE((len = recv(self->cfd, buf, len,
+			      MSG_PEEK | MSG_WAITALL)), -1);
+	len = strlen(test_str) + 1;
+	EXPECT_EQ(memcmp(test_str, buf, len), 0);
+}
+
+TEST_F(tls, recv_lowat)
+{
+	char send_mem[10] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+	char recv_mem[20];
+	int lowat = 8;
+
+	EXPECT_EQ(send(self->fd, send_mem, 10, 0), 10);
+	EXPECT_EQ(send(self->fd, send_mem, 5, 0), 5);
+
+	memset(recv_mem, 0, 20);
+	EXPECT_EQ(setsockopt(self->cfd, SOL_SOCKET, SO_RCVLOWAT,
+			     &lowat, sizeof(lowat)), 0);
+	EXPECT_EQ(recv(self->cfd, recv_mem, 1, MSG_WAITALL), 1);
+	EXPECT_EQ(recv(self->cfd, recv_mem + 1, 6, MSG_WAITALL), 6);
+	EXPECT_EQ(recv(self->cfd, recv_mem + 7, 10, 0), 8);
+
+	EXPECT_EQ(memcmp(send_mem, recv_mem, 10), 0);
+	EXPECT_EQ(memcmp(send_mem, recv_mem + 10, 5), 0);
+}
+
+TEST_F(tls, bidir)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+	int ret;
+
+	if (!self->notls) {
+		struct tls_crypto_info_keys tls12;
+
+		tls_crypto_info_init(variant->tls_version, variant->cipher_type,
+				     &tls12, 0);
+
+		ret = setsockopt(self->fd, SOL_TLS, TLS_RX, &tls12,
+				 tls12.len);
+		ASSERT_EQ(ret, 0);
+
+		ret = setsockopt(self->cfd, SOL_TLS, TLS_TX, &tls12,
+				 tls12.len);
+		ASSERT_EQ(ret, 0);
+	}
+
+	ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+	memset(buf, 0, sizeof(buf));
+
+	EXPECT_EQ(send(self->cfd, test_str, send_len, 0), send_len);
+	EXPECT_NE(recv(self->fd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+};
+
+TEST_F(tls, pollin)
+{
+	char const *test_str = "test_poll";
+	struct pollfd fd = { 0, 0, 0 };
+	char buf[10];
+	int send_len = 10;
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	fd.fd = self->cfd;
+	fd.events = POLLIN;
+
+	EXPECT_EQ(poll(&fd, 1, 20), 1);
+	EXPECT_EQ(fd.revents & POLLIN, 1);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_WAITALL), send_len);
+	/* Test timing out */
+	EXPECT_EQ(poll(&fd, 1, 20), 0);
+}
+
+TEST_F(tls, poll_wait)
+{
+	char const *test_str = "test_poll_wait";
+	int send_len = strlen(test_str) + 1;
+	struct pollfd fd = { 0, 0, 0 };
+	char recv_mem[15];
+
+	fd.fd = self->cfd;
+	fd.events = POLLIN;
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	/* Set timeout to inf. secs */
+	EXPECT_EQ(poll(&fd, 1, -1), 1);
+	EXPECT_EQ(fd.revents & POLLIN, 1);
+	EXPECT_EQ(recv(self->cfd, recv_mem, send_len, MSG_WAITALL), send_len);
+}
+
+TEST_F(tls, poll_wait_split)
+{
+	struct pollfd fd = { 0, 0, 0 };
+	char send_mem[20] = {};
+	char recv_mem[15];
+
+	fd.fd = self->cfd;
+	fd.events = POLLIN;
+	/* Send 20 bytes */
+	EXPECT_EQ(send(self->fd, send_mem, sizeof(send_mem), 0),
+		  sizeof(send_mem));
+	/* Poll with inf. timeout */
+	EXPECT_EQ(poll(&fd, 1, -1), 1);
+	EXPECT_EQ(fd.revents & POLLIN, 1);
+	EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), MSG_WAITALL),
+		  sizeof(recv_mem));
+
+	/* Now the remaining 5 bytes of record data are in TLS ULP */
+	fd.fd = self->cfd;
+	fd.events = POLLIN;
+	EXPECT_EQ(poll(&fd, 1, -1), 1);
+	EXPECT_EQ(fd.revents & POLLIN, 1);
+	EXPECT_EQ(recv(self->cfd, recv_mem, sizeof(recv_mem), 0),
+		  sizeof(send_mem) - sizeof(recv_mem));
+}
+
+TEST_F(tls, blocking)
+{
+	size_t data = 100000;
+	int res = fork();
+
+	EXPECT_NE(res, -1);
+
+	if (res) {
+		/* parent */
+		size_t left = data;
+		char buf[16384];
+		int status;
+		int pid2;
+
+		while (left) {
+			int res = send(self->fd, buf,
+				       left > 16384 ? 16384 : left, 0);
+
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+
+		pid2 = wait(&status);
+		EXPECT_EQ(status, 0);
+		EXPECT_EQ(res, pid2);
+	} else {
+		/* child */
+		size_t left = data;
+		char buf[16384];
+
+		while (left) {
+			int res = recv(self->cfd, buf,
+				       left > 16384 ? 16384 : left, 0);
+
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+	}
+}
+
+TEST_F(tls, nonblocking)
+{
+	size_t data = 100000;
+	int sendbuf = 100;
+	int flags;
+	int res;
+
+	flags = fcntl(self->fd, F_GETFL, 0);
+	fcntl(self->fd, F_SETFL, flags | O_NONBLOCK);
+	fcntl(self->cfd, F_SETFL, flags | O_NONBLOCK);
+
+	/* Ensure nonblocking behavior by imposing a small send
+	 * buffer.
+	 */
+	EXPECT_EQ(setsockopt(self->fd, SOL_SOCKET, SO_SNDBUF,
+			     &sendbuf, sizeof(sendbuf)), 0);
+
+	res = fork();
+	EXPECT_NE(res, -1);
+
+	if (res) {
+		/* parent */
+		bool eagain = false;
+		size_t left = data;
+		char buf[16384];
+		int status;
+		int pid2;
+
+		while (left) {
+			int res = send(self->fd, buf,
+				       left > 16384 ? 16384 : left, 0);
+
+			if (res == -1 && errno == EAGAIN) {
+				eagain = true;
+				usleep(10000);
+				continue;
+			}
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+
+		EXPECT_TRUE(eagain);
+		pid2 = wait(&status);
+
+		EXPECT_EQ(status, 0);
+		EXPECT_EQ(res, pid2);
+	} else {
+		/* child */
+		bool eagain = false;
+		size_t left = data;
+		char buf[16384];
+
+		while (left) {
+			int res = recv(self->cfd, buf,
+				       left > 16384 ? 16384 : left, 0);
+
+			if (res == -1 && errno == EAGAIN) {
+				eagain = true;
+				usleep(10000);
+				continue;
+			}
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+		EXPECT_TRUE(eagain);
+	}
+}
+
+static void
+test_mutliproc(struct __test_metadata *_metadata, struct _test_data_tls *self,
+	       bool sendpg, unsigned int n_readers, unsigned int n_writers)
+{
+	const unsigned int n_children = n_readers + n_writers;
+	const size_t data = 6 * 1000 * 1000;
+	const size_t file_sz = data / 100;
+	size_t read_bias, write_bias;
+	int i, fd, child_id;
+	char buf[file_sz];
+	pid_t pid;
+
+	/* Only allow multiples for simplicity */
+	ASSERT_EQ(!(n_readers % n_writers) || !(n_writers % n_readers), true);
+	read_bias = n_writers / n_readers ?: 1;
+	write_bias = n_readers / n_writers ?: 1;
+
+	/* prep a file to send */
+	fd = open("/tmp/", O_TMPFILE | O_RDWR, 0600);
+	ASSERT_GE(fd, 0);
+
+	memset(buf, 0xac, file_sz);
+	ASSERT_EQ(write(fd, buf, file_sz), file_sz);
+
+	/* spawn children */
+	for (child_id = 0; child_id < n_children; child_id++) {
+		pid = fork();
+		ASSERT_NE(pid, -1);
+		if (!pid)
+			break;
+	}
+
+	/* parent waits for all children */
+	if (pid) {
+		for (i = 0; i < n_children; i++) {
+			int status;
+
+			wait(&status);
+			EXPECT_EQ(status, 0);
+		}
+
+		return;
+	}
+
+	/* Split threads for reading and writing */
+	if (child_id < n_readers) {
+		size_t left = data * read_bias;
+		char rb[8001];
+
+		while (left) {
+			int res;
+
+			res = recv(self->cfd, rb,
+				   left > sizeof(rb) ? sizeof(rb) : left, 0);
+
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+	} else {
+		size_t left = data * write_bias;
+
+		while (left) {
+			int res;
+
+			ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0);
+			if (sendpg)
+				res = sendfile(self->fd, fd, NULL,
+					       left > file_sz ? file_sz : left);
+			else
+				res = send(self->fd, buf,
+					   left > file_sz ? file_sz : left, 0);
+
+			EXPECT_GE(res, 0);
+			left -= res;
+		}
+	}
+}
+
+TEST_F(tls, mutliproc_even)
+{
+	test_mutliproc(_metadata, self, false, 6, 6);
+}
+
+TEST_F(tls, mutliproc_readers)
+{
+	test_mutliproc(_metadata, self, false, 4, 12);
+}
+
+TEST_F(tls, mutliproc_writers)
+{
+	test_mutliproc(_metadata, self, false, 10, 2);
+}
+
+TEST_F(tls, mutliproc_sendpage_even)
+{
+	test_mutliproc(_metadata, self, true, 6, 6);
+}
+
+TEST_F(tls, mutliproc_sendpage_readers)
+{
+	test_mutliproc(_metadata, self, true, 4, 12);
+}
+
+TEST_F(tls, mutliproc_sendpage_writers)
+{
+	test_mutliproc(_metadata, self, true, 10, 2);
+}
+
+TEST_F(tls, control_msg)
+{
+	char *test_str = "test_read";
+	char record_type = 100;
+	int send_len = 10;
+	char buf[10];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	EXPECT_EQ(tls_send_cmsg(self->fd, record_type, test_str, send_len, 0),
+		  send_len);
+	/* Should fail because we didn't provide a control message */
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+				buf, sizeof(buf), MSG_WAITALL | MSG_PEEK),
+		  send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+	/* Recv the message again without MSG_PEEK */
+	memset(buf, 0, sizeof(buf));
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, record_type,
+				buf, sizeof(buf), MSG_WAITALL),
+		  send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls, control_msg_nomerge)
+{
+	char *rec1 = "1111";
+	char *rec2 = "2222";
+	int send_len = 5;
+	char buf[15];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec1, send_len, 0), send_len);
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec2, send_len, 0), send_len);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
+	EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), MSG_PEEK), send_len);
+	EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
+	EXPECT_EQ(memcmp(buf, rec1, send_len), 0);
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, self->cfd, 100, buf, sizeof(buf), 0), send_len);
+	EXPECT_EQ(memcmp(buf, rec2, send_len), 0);
+}
+
+TEST_F(tls, data_control_data)
+{
+	char *rec1 = "1111";
+	char *rec2 = "2222";
+	char *rec3 = "3333";
+	int send_len = 5;
+	char buf[15];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	EXPECT_EQ(send(self->fd, rec1, send_len, 0), send_len);
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, rec2, send_len, 0), send_len);
+	EXPECT_EQ(send(self->fd, rec3, send_len, 0), send_len);
+
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_PEEK), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_PEEK), send_len);
+}
+
+TEST_F(tls, shutdown)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+	char buf[10];
+
+	ASSERT_EQ(strlen(test_str) + 1, send_len);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+
+	shutdown(self->fd, SHUT_RDWR);
+	shutdown(self->cfd, SHUT_RDWR);
+}
+
+TEST_F(tls, shutdown_unsent)
+{
+	char const *test_str = "test_read";
+	int send_len = 10;
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, MSG_MORE), send_len);
+
+	shutdown(self->fd, SHUT_RDWR);
+	shutdown(self->cfd, SHUT_RDWR);
+}
+
+TEST_F(tls, shutdown_reuse)
+{
+	struct sockaddr_in addr;
+	int ret;
+
+	shutdown(self->fd, SHUT_RDWR);
+	shutdown(self->cfd, SHUT_RDWR);
+	close(self->cfd);
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+
+	ret = bind(self->fd, &addr, sizeof(addr));
+	EXPECT_EQ(ret, 0);
+	ret = listen(self->fd, 10);
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	ret = connect(self->fd, &addr, sizeof(addr));
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EISCONN);
+}
+
+TEST_F(tls, getsockopt)
+{
+	struct tls_crypto_info_keys expect, get;
+	socklen_t len;
+
+	/* get only the version/cipher */
+	len = sizeof(struct tls_crypto_info);
+	memrnd(&get, sizeof(get));
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &get, &len), 0);
+	EXPECT_EQ(len, sizeof(struct tls_crypto_info));
+	EXPECT_EQ(get.crypto_info.version, variant->tls_version);
+	EXPECT_EQ(get.crypto_info.cipher_type, variant->cipher_type);
+
+	/* get the full crypto_info */
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &expect, 0);
+	len = expect.len;
+	memrnd(&get, sizeof(get));
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &get, &len), 0);
+	EXPECT_EQ(len, expect.len);
+	EXPECT_EQ(get.crypto_info.version, variant->tls_version);
+	EXPECT_EQ(get.crypto_info.cipher_type, variant->cipher_type);
+	EXPECT_EQ(memcmp(&get, &expect, expect.len), 0);
+
+	/* short get should fail */
+	len = sizeof(struct tls_crypto_info) - 1;
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &get, &len), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* partial get of the cipher data should fail */
+	len = expect.len - 1;
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &get, &len), -1);
+	EXPECT_EQ(errno, EINVAL);
+}
+
+TEST_F(tls, recv_efault)
+{
+	char *rec1 = "1111111111";
+	char *rec2 = "2222222222";
+	struct msghdr hdr = {};
+	struct iovec iov[2];
+	char recv_mem[12];
+	int ret;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	EXPECT_EQ(send(self->fd, rec1, 10, 0), 10);
+	EXPECT_EQ(send(self->fd, rec2, 10, 0), 10);
+
+	iov[0].iov_base = recv_mem;
+	iov[0].iov_len = sizeof(recv_mem);
+	iov[1].iov_base = NULL; /* broken iov to make process_rx_list fail */
+	iov[1].iov_len = 1;
+
+	hdr.msg_iovlen = 2;
+	hdr.msg_iov = iov;
+
+	EXPECT_EQ(recv(self->cfd, recv_mem, 1, 0), 1);
+	EXPECT_EQ(recv_mem[0], rec1[0]);
+
+	ret = recvmsg(self->cfd, &hdr, 0);
+	EXPECT_LE(ret, sizeof(recv_mem));
+	EXPECT_GE(ret, 9);
+	EXPECT_EQ(memcmp(rec1, recv_mem, 9), 0);
+	if (ret > 9)
+		EXPECT_EQ(memcmp(rec2, recv_mem + 9, ret - 9), 0);
+}
+
+#define TLS_RECORD_TYPE_HANDSHAKE      0x16
+/* key_update, length 1, update_not_requested */
+static const char key_update_msg[] = "\x18\x00\x00\x01\x00";
+static void tls_send_keyupdate(struct __test_metadata *_metadata, int fd)
+{
+	size_t len = sizeof(key_update_msg);
+
+	EXPECT_EQ(tls_send_cmsg(fd, TLS_RECORD_TYPE_HANDSHAKE,
+				(char *)key_update_msg, len, 0),
+		  len);
+}
+
+static void tls_recv_keyupdate(struct __test_metadata *_metadata, int fd, int flags)
+{
+	char buf[100];
+
+	EXPECT_EQ(tls_recv_cmsg(_metadata, fd, TLS_RECORD_TYPE_HANDSHAKE, buf, sizeof(buf), flags),
+		  sizeof(key_update_msg));
+	EXPECT_EQ(memcmp(buf, key_update_msg, sizeof(key_update_msg)), 0);
+}
+
+/* set the key to 0 then 1 for RX, immediately to 1 for TX */
+TEST_F(tls_basic, rekey_rx)
+{
+	struct tls_crypto_info_keys tls12_0, tls12_1;
+	char const *test_str = "test_message";
+	int send_len = strlen(test_str) + 1;
+	char buf[20];
+	int ret;
+
+	if (self->notls)
+		return;
+
+	tls_crypto_info_init(TLS_1_3_VERSION, TLS_CIPHER_AES_GCM_128,
+			     &tls12_0, 0);
+	tls_crypto_info_init(TLS_1_3_VERSION, TLS_CIPHER_AES_GCM_128,
+			     &tls12_1, 1);
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12_1, tls12_1.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12_0, tls12_0.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12_1, tls12_1.len);
+	EXPECT_EQ(ret, 0);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+/* set the key to 0 then 1 for TX, immediately to 1 for RX */
+TEST_F(tls_basic, rekey_tx)
+{
+	struct tls_crypto_info_keys tls12_0, tls12_1;
+	char const *test_str = "test_message";
+	int send_len = strlen(test_str) + 1;
+	char buf[20];
+	int ret;
+
+	if (self->notls)
+		return;
+
+	tls_crypto_info_init(TLS_1_3_VERSION, TLS_CIPHER_AES_GCM_128,
+			     &tls12_0, 0);
+	tls_crypto_info_init(TLS_1_3_VERSION, TLS_CIPHER_AES_GCM_128,
+			     &tls12_1, 1);
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12_0, tls12_0.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12_1, tls12_1.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12_1, tls12_1.len);
+	EXPECT_EQ(ret, 0);
+
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(buf, test_str, send_len), 0);
+}
+
+TEST_F(tls_basic, disconnect)
+{
+	char const *test_str = "test_message";
+	int send_len = strlen(test_str) + 1;
+	struct tls_crypto_info_keys key;
+	struct sockaddr_in addr;
+	char buf[20];
+	int ret;
+
+	if (self->notls)
+		return;
+
+	tls_crypto_info_init(TLS_1_3_VERSION, TLS_CIPHER_AES_GCM_128,
+			     &key, 0);
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &key, key.len);
+	ASSERT_EQ(ret, 0);
+
+	/* Pre-queue the data so that setsockopt parses it but doesn't
+	 * dequeue it from the TCP socket. recvmsg would dequeue.
+	 */
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &key, key.len);
+	ASSERT_EQ(ret, 0);
+
+	addr.sin_family = AF_UNSPEC;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+	ret = connect(self->cfd, &addr, sizeof(addr));
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EOPNOTSUPP);
+
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+}
+
+TEST_F(tls, rekey)
+{
+	char const *test_str_1 = "test_message_before_rekey";
+	char const *test_str_2 = "test_message_after_rekey";
+	struct tls_crypto_info_keys tls12;
+	int send_len;
+	char buf[100];
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	/* initial send/recv */
+	send_len = strlen(test_str_1) + 1;
+	EXPECT_EQ(send(self->fd, test_str_1, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(buf, test_str_1, send_len), 0);
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	/* send after rekey */
+	send_len = strlen(test_str_2) + 1;
+	EXPECT_EQ(send(self->fd, test_str_2, send_len, 0), send_len);
+
+	/* can't receive the KeyUpdate without a control message */
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	/* recv blocking -> -EKEYEXPIRED */
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EKEYEXPIRED);
+
+	/* recv non-blocking -> -EKEYEXPIRED */
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_DONTWAIT), -1);
+	EXPECT_EQ(errno, EKEYEXPIRED);
+
+	/* update RX key */
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+	/* recv after rekey */
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str_2, send_len), 0);
+}
+
+TEST_F(tls, rekey_fail)
+{
+	char const *test_str_1 = "test_message_before_rekey";
+	char const *test_str_2 = "test_message_after_rekey";
+	struct tls_crypto_info_keys tls12;
+	int send_len;
+	char buf[100];
+
+	/* initial send/recv */
+	send_len = strlen(test_str_1) + 1;
+	EXPECT_EQ(send(self->fd, test_str_1, send_len, 0), send_len);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(buf, test_str_1, send_len), 0);
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+
+	if (variant->tls_version != TLS_1_3_VERSION) {
+		/* just check that rekey is not supported and return */
+		tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+		EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), -1);
+		EXPECT_EQ(errno, EBUSY);
+		return;
+	}
+
+	/* successful update */
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	/* invalid update: change of version */
+	tls_crypto_info_init(TLS_1_2_VERSION, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* invalid update (RX socket): change of version */
+	tls_crypto_info_init(TLS_1_2_VERSION, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* invalid update: change of cipher */
+	if (variant->cipher_type == TLS_CIPHER_AES_GCM_256)
+		tls_crypto_info_init(variant->tls_version, TLS_CIPHER_CHACHA20_POLY1305, &tls12, 1);
+	else
+		tls_crypto_info_init(variant->tls_version, TLS_CIPHER_AES_GCM_256, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* send after rekey, the invalid updates shouldn't have an effect */
+	send_len = strlen(test_str_2) + 1;
+	EXPECT_EQ(send(self->fd, test_str_2, send_len, 0), send_len);
+
+	/* can't receive the KeyUpdate without a control message */
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), -1);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	/* recv blocking -> -EKEYEXPIRED */
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EKEYEXPIRED);
+
+	/* recv non-blocking -> -EKEYEXPIRED */
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_DONTWAIT), -1);
+	EXPECT_EQ(errno, EKEYEXPIRED);
+
+	/* update RX key */
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+	/* recv after rekey */
+	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(memcmp(buf, test_str_2, send_len), 0);
+}
+
+TEST_F(tls, rekey_peek)
+{
+	char const *test_str_1 = "test_message_before_rekey";
+	struct tls_crypto_info_keys tls12;
+	int send_len;
+	char buf[100];
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	send_len = strlen(test_str_1) + 1;
+	EXPECT_EQ(send(self->fd, test_str_1, send_len, 0), send_len);
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_PEEK), send_len);
+	EXPECT_EQ(memcmp(buf, test_str_1, send_len), 0);
+
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
+	EXPECT_EQ(memcmp(buf, test_str_1, send_len), 0);
+
+	/* can't receive the KeyUpdate without a control message */
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_PEEK), -1);
+
+	/* peek KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, MSG_PEEK);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	/* update RX key */
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+}
+
+TEST_F(tls, splice_rekey)
+{
+	int send_len = TLS_PAYLOAD_MAX_LEN / 2;
+	char mem_send[TLS_PAYLOAD_MAX_LEN];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	struct tls_crypto_info_keys tls12;
+	int p[2];
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	memrnd(mem_send, sizeof(mem_send));
+
+	ASSERT_GE(pipe(p), 0);
+	EXPECT_EQ(send(self->fd, mem_send, send_len, 0), send_len);
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	EXPECT_EQ(send(self->fd, mem_send, send_len, 0), send_len);
+
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, TLS_PAYLOAD_MAX_LEN, 0), send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+
+	/* can't splice the KeyUpdate */
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, TLS_PAYLOAD_MAX_LEN, 0), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* peek KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, MSG_PEEK);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	/* can't splice before updating the key */
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, TLS_PAYLOAD_MAX_LEN, 0), -1);
+	EXPECT_EQ(errno, EKEYEXPIRED);
+
+	/* update RX key */
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, TLS_PAYLOAD_MAX_LEN, 0), send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
+	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
+}
+
+TEST_F(tls, rekey_peek_splice)
+{
+	char const *test_str_1 = "test_message_before_rekey";
+	struct tls_crypto_info_keys tls12;
+	int send_len;
+	char buf[100];
+	char mem_recv[TLS_PAYLOAD_MAX_LEN];
+	int p[2];
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	ASSERT_GE(pipe(p), 0);
+
+	send_len = strlen(test_str_1) + 1;
+	EXPECT_EQ(send(self->fd, test_str_1, send_len, 0), send_len);
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	EXPECT_EQ(recv(self->cfd, buf, sizeof(buf), MSG_PEEK), send_len);
+	EXPECT_EQ(memcmp(buf, test_str_1, send_len), 0);
+
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, TLS_PAYLOAD_MAX_LEN, 0), send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
+	EXPECT_EQ(memcmp(mem_recv, test_str_1, send_len), 0);
+}
+
+TEST_F(tls, rekey_getsockopt)
+{
+	struct tls_crypto_info_keys tls12;
+	struct tls_crypto_info_keys tls12_get;
+	socklen_t len;
+
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 0);
+
+	len = tls12.len;
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &tls12_get, &len), 0);
+	EXPECT_EQ(len, tls12.len);
+	EXPECT_EQ(memcmp(&tls12_get, &tls12, tls12.len), 0);
+
+	len = tls12.len;
+	EXPECT_EQ(getsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12_get, &len), 0);
+	EXPECT_EQ(len, tls12.len);
+	EXPECT_EQ(memcmp(&tls12_get, &tls12, tls12.len), 0);
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+	EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+	len = tls12.len;
+	EXPECT_EQ(getsockopt(self->fd, SOL_TLS, TLS_TX, &tls12_get, &len), 0);
+	EXPECT_EQ(len, tls12.len);
+	EXPECT_EQ(memcmp(&tls12_get, &tls12, tls12.len), 0);
+
+	len = tls12.len;
+	EXPECT_EQ(getsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12_get, &len), 0);
+	EXPECT_EQ(len, tls12.len);
+	EXPECT_EQ(memcmp(&tls12_get, &tls12, tls12.len), 0);
+}
+
+TEST_F(tls, rekey_poll_pending)
+{
+	char const *test_str = "test_message_after_rekey";
+	struct tls_crypto_info_keys tls12;
+	struct pollfd pfd = { };
+	int send_len;
+	int ret;
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	/* send immediately after rekey */
+	send_len = strlen(test_str) + 1;
+	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+
+	/* key hasn't been updated, expect cfd to be non-readable */
+	pfd.fd = self->cfd;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 0), 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret) {
+		int pid2, status;
+
+		/* wait before installing the new key */
+		sleep(1);
+
+		/* update RX key while poll() is sleeping */
+		EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+		pid2 = wait(&status);
+		EXPECT_EQ(pid2, ret);
+		EXPECT_EQ(status, 0);
+	} else {
+		pfd.fd = self->cfd;
+		pfd.events = POLLIN;
+		EXPECT_EQ(poll(&pfd, 1, 5000), 1);
+
+		exit(!__test_passed(_metadata));
+	}
+}
+
+TEST_F(tls, rekey_poll_delay)
+{
+	char const *test_str = "test_message_after_rekey";
+	struct tls_crypto_info_keys tls12;
+	struct pollfd pfd = { };
+	int send_len;
+	int ret;
+
+	if (variant->tls_version != TLS_1_3_VERSION)
+		return;
+
+	/* update TX key */
+	tls_send_keyupdate(_metadata, self->fd);
+	tls_crypto_info_init(variant->tls_version, variant->cipher_type, &tls12, 1);
+	EXPECT_EQ(setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+
+	/* get KeyUpdate */
+	tls_recv_keyupdate(_metadata, self->cfd, 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret) {
+		int pid2, status;
+
+		/* wait before installing the new key */
+		sleep(1);
+
+		/* update RX key while poll() is sleeping */
+		EXPECT_EQ(setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+
+		sleep(1);
+		send_len = strlen(test_str) + 1;
+		EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
+
+		pid2 = wait(&status);
+		EXPECT_EQ(pid2, ret);
+		EXPECT_EQ(status, 0);
+	} else {
+		pfd.fd = self->cfd;
+		pfd.events = POLLIN;
+		EXPECT_EQ(poll(&pfd, 1, 5000), 1);
+		exit(!__test_passed(_metadata));
+	}
+}
+
+struct raw_rec {
+	unsigned int plain_len;
+	unsigned char plain_data[100];
+	unsigned int cipher_len;
+	unsigned char cipher_data[128];
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:0, plaintext: 'Hello world' */
+static const struct raw_rec id0_data_l11 = {
+	.plain_len = 11,
+	.plain_data = {
+		0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f,
+		0x72, 0x6c, 0x64,
+	},
+	.cipher_len = 40,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x23, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x26, 0xa2, 0x33,
+		0xde, 0x8d, 0x94, 0xf0, 0x29, 0x6c, 0xb1, 0xaf,
+		0x6a, 0x75, 0xb2, 0x93, 0xad, 0x45, 0xd5, 0xfd,
+		0x03, 0x51, 0x57, 0x8f, 0xf9, 0xcc, 0x3b, 0x42,
+	},
+};
+
+/* TLS 1.2, AES_CCM, ctrl, seqno:0, plaintext: '' */
+static const struct raw_rec id0_ctrl_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x16, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x38, 0x7b,
+		0xa6, 0x1c, 0xdd, 0xa7, 0x19, 0x33, 0xab, 0xae,
+		0x88, 0xe1, 0xd2, 0x08, 0x4f,
+	},
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:0, plaintext: '' */
+static const struct raw_rec id0_data_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x00, 0xc5, 0x37, 0x90,
+		0x70, 0x45, 0x89, 0xfb, 0x5c, 0xc7, 0x89, 0x03,
+		0x68, 0x80, 0xd3, 0xd8, 0xcc,
+	},
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:1, plaintext: 'Hello world' */
+static const struct raw_rec id1_data_l11 = {
+	.plain_len = 11,
+	.plain_data = {
+		0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f,
+		0x72, 0x6c, 0x64,
+	},
+	.cipher_len = 40,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x23, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x01, 0x3a, 0x1a, 0x9c,
+		0xd0, 0xa8, 0x9a, 0xd6, 0x69, 0xd6, 0x1a, 0xe3,
+		0xb5, 0x1f, 0x0d, 0x2c, 0xe2, 0x97, 0x46, 0xff,
+		0x2b, 0xcc, 0x5a, 0xc4, 0xa3, 0xb9, 0xef, 0xba,
+	},
+};
+
+/* TLS 1.2, AES_CCM, ctrl, seqno:1, plaintext: '' */
+static const struct raw_rec id1_ctrl_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x16, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x01, 0x3e, 0xf0, 0xfe,
+		0xee, 0xd9, 0xe2, 0x5d, 0xc7, 0x11, 0x4c, 0xe6,
+		0xb4, 0x7e, 0xef, 0x40, 0x2b,
+	},
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:1, plaintext: '' */
+static const struct raw_rec id1_data_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x01, 0xce, 0xfc, 0x86,
+		0xc8, 0xf0, 0x55, 0xf9, 0x47, 0x3f, 0x74, 0xdc,
+		0xc9, 0xbf, 0xfe, 0x5b, 0xb1,
+	},
+};
+
+/* TLS 1.2, AES_CCM, ctrl, seqno:2, plaintext: 'Hello world' */
+static const struct raw_rec id2_ctrl_l11 = {
+	.plain_len = 11,
+	.plain_data = {
+		0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f,
+		0x72, 0x6c, 0x64,
+	},
+	.cipher_len = 40,
+	.cipher_data = {
+		0x16, 0x03, 0x03, 0x00, 0x23, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x02, 0xe5, 0x3d, 0x19,
+		0x3d, 0xca, 0xb8, 0x16, 0xb6, 0xff, 0x79, 0x87,
+		0x2a, 0x04, 0x11, 0x3d, 0xf8, 0x64, 0x5f, 0x36,
+		0x8b, 0xa8, 0xee, 0x4c, 0x6d, 0x62, 0xa5, 0x00,
+	},
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:2, plaintext: 'Hello world' */
+static const struct raw_rec id2_data_l11 = {
+	.plain_len = 11,
+	.plain_data = {
+		0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x20, 0x77, 0x6f,
+		0x72, 0x6c, 0x64,
+	},
+	.cipher_len = 40,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x23, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x02, 0xe5, 0x3d, 0x19,
+		0x3d, 0xca, 0xb8, 0x16, 0xb6, 0xff, 0x79, 0x87,
+		0x8e, 0xa1, 0xd0, 0xcd, 0x33, 0xb5, 0x86, 0x2b,
+		0x17, 0xf1, 0x52, 0x2a, 0x55, 0x62, 0x65, 0x11,
+	},
+};
+
+/* TLS 1.2, AES_CCM, ctrl, seqno:2, plaintext: '' */
+static const struct raw_rec id2_ctrl_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x16, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x02, 0xdc, 0x5c, 0x0e,
+		0x41, 0xdd, 0xba, 0xd3, 0xcc, 0xcf, 0x6d, 0xd9,
+		0x06, 0xdb, 0x79, 0xe5, 0x5d,
+	},
+};
+
+/* TLS 1.2, AES_CCM, data, seqno:2, plaintext: '' */
+static const struct raw_rec id2_data_l0 = {
+	.plain_len = 0,
+	.plain_data = {
+	},
+	.cipher_len = 29,
+	.cipher_data = {
+		0x17, 0x03, 0x03, 0x00, 0x18, 0x00, 0x00, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x02, 0xc3, 0xca, 0x26,
+		0x22, 0xe4, 0x25, 0xfb, 0x5f, 0x6d, 0xbf, 0x83,
+		0x30, 0x48, 0x69, 0x1a, 0x47,
+	},
+};
+
+FIXTURE(zero_len)
+{
+	int fd, cfd;
+	bool notls;
+};
+
+FIXTURE_VARIANT(zero_len)
+{
+	const struct raw_rec *recs[4];
+	ssize_t recv_ret[4];
+};
+
+FIXTURE_VARIANT_ADD(zero_len, data_data_data)
+{
+	.recs = { &id0_data_l11, &id1_data_l11, &id2_data_l11, },
+	.recv_ret = { 33, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, data_0ctrl_data)
+{
+	.recs = { &id0_data_l11, &id1_ctrl_l0, &id2_data_l11, },
+	.recv_ret = { 11, 0, 11, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, 0data_0data_0data)
+{
+	.recs = { &id0_data_l0, &id1_data_l0, &id2_data_l0, },
+	.recv_ret = { -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, 0data_0data_ctrl)
+{
+	.recs = { &id0_data_l0, &id1_data_l0, &id2_ctrl_l11, },
+	.recv_ret = { 0, 11, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, 0data_0data_0ctrl)
+{
+	.recs = { &id0_data_l0, &id1_data_l0, &id2_ctrl_l0, },
+	.recv_ret = { 0, 0, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, 0ctrl_0ctrl_0ctrl)
+{
+	.recs = { &id0_ctrl_l0, &id1_ctrl_l0, &id2_ctrl_l0, },
+	.recv_ret = { 0, 0, 0, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, 0data_0data_data)
+{
+	.recs = { &id0_data_l0, &id1_data_l0, &id2_data_l11, },
+	.recv_ret = { 11, -EAGAIN, },
+};
+
+FIXTURE_VARIANT_ADD(zero_len, data_0data_0data)
+{
+	.recs = { &id0_data_l11, &id1_data_l0, &id2_data_l0, },
+	.recv_ret = { 11, -EAGAIN, },
+};
+
+FIXTURE_SETUP(zero_len)
+{
+	struct tls_crypto_info_keys tls12;
+	int ret;
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_CCM_128,
+			     &tls12, 0);
+
+	ulp_sock_pair(_metadata, &self->fd, &self->cfd, &self->notls);
+	if (self->notls)
+		return;
+
+	/* Don't install keys on fd, we'll send raw records */
+	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+}
+
+FIXTURE_TEARDOWN(zero_len)
+{
+	close(self->fd);
+	close(self->cfd);
+}
+
+TEST_F(zero_len, test)
+{
+	const struct raw_rec *const *rec;
+	unsigned char buf[128];
+	int rec_off;
+	int i;
+
+	for (i = 0; i < 4 && variant->recs[i]; i++)
+		EXPECT_EQ(send(self->fd, variant->recs[i]->cipher_data,
+			       variant->recs[i]->cipher_len, 0),
+			  variant->recs[i]->cipher_len);
+
+	rec = &variant->recs[0];
+	rec_off = 0;
+	for (i = 0; i < 4; i++) {
+		int j, ret;
+
+		ret = variant->recv_ret[i] >= 0 ? variant->recv_ret[i] : -1;
+		EXPECT_EQ(__tls_recv_cmsg(_metadata, self->cfd, NULL,
+					  buf, sizeof(buf), MSG_DONTWAIT), ret);
+		if (ret == -1)
+			EXPECT_EQ(errno, -variant->recv_ret[i]);
+		if (variant->recv_ret[i] == -EAGAIN)
+			break;
+
+		for (j = 0; j < ret; j++) {
+			while (rec_off == (*rec)->plain_len) {
+				rec++;
+				rec_off = 0;
+			}
+			EXPECT_EQ(buf[j], (*rec)->plain_data[rec_off]);
+			rec_off++;
+		}
+	}
+};
+
+FIXTURE(tls_err)
+{
+	int fd, cfd;
+	int fd2, cfd2;
+	bool notls;
+};
+
+FIXTURE_VARIANT(tls_err)
+{
+	uint16_t tls_version;
+};
+
+FIXTURE_VARIANT_ADD(tls_err, 12_aes_gcm)
+{
+	.tls_version = TLS_1_2_VERSION,
+};
+
+FIXTURE_VARIANT_ADD(tls_err, 13_aes_gcm)
+{
+	.tls_version = TLS_1_3_VERSION,
+};
+
+FIXTURE_SETUP(tls_err)
+{
+	struct tls_crypto_info_keys tls12;
+	int ret;
+
+	tls_crypto_info_init(variant->tls_version, TLS_CIPHER_AES_GCM_128,
+			     &tls12, 0);
+
+	ulp_sock_pair(_metadata, &self->fd, &self->cfd, &self->notls);
+	ulp_sock_pair(_metadata, &self->fd2, &self->cfd2, &self->notls);
+	if (self->notls)
+		return;
+
+	ret = setsockopt(self->fd, SOL_TLS, TLS_TX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(self->cfd2, SOL_TLS, TLS_RX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+}
+
+FIXTURE_TEARDOWN(tls_err)
+{
+	close(self->fd);
+	close(self->cfd);
+	close(self->fd2);
+	close(self->cfd2);
+}
+
+TEST_F(tls_err, bad_rec)
+{
+	char buf[64];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	memset(buf, 0x55, sizeof(buf));
+	EXPECT_EQ(send(self->fd2, buf, sizeof(buf), 0), sizeof(buf));
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EMSGSIZE);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), MSG_DONTWAIT), -1);
+	EXPECT_EQ(errno, EAGAIN);
+}
+
+TEST_F(tls_err, bad_auth)
+{
+	char buf[128];
+	int n;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	memrnd(buf, sizeof(buf) / 2);
+	EXPECT_EQ(send(self->fd, buf, sizeof(buf) / 2, 0), sizeof(buf) / 2);
+	n = recv(self->cfd, buf, sizeof(buf), 0);
+	EXPECT_GT(n, sizeof(buf) / 2);
+
+	buf[n - 1]++;
+
+	EXPECT_EQ(send(self->fd2, buf, n, 0), n);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+}
+
+TEST_F(tls_err, bad_in_large_read)
+{
+	char txt[3][64];
+	char cip[3][128];
+	char buf[3 * 128];
+	int i, n;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	/* Put 3 records in the sockets */
+	for (i = 0; i < 3; i++) {
+		memrnd(txt[i], sizeof(txt[i]));
+		EXPECT_EQ(send(self->fd, txt[i], sizeof(txt[i]), 0),
+			  sizeof(txt[i]));
+		n = recv(self->cfd, cip[i], sizeof(cip[i]), 0);
+		EXPECT_GT(n, sizeof(txt[i]));
+		/* Break the third message */
+		if (i == 2)
+			cip[2][n - 1]++;
+		EXPECT_EQ(send(self->fd2, cip[i], n, 0), n);
+	}
+
+	/* We should be able to receive the first two messages */
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), sizeof(txt[0]) * 2);
+	EXPECT_EQ(memcmp(buf, txt[0], sizeof(txt[0])), 0);
+	EXPECT_EQ(memcmp(buf + sizeof(txt[0]), txt[1], sizeof(txt[1])), 0);
+	/* Third mesasge is bad */
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+}
+
+TEST_F(tls_err, bad_cmsg)
+{
+	char *test_str = "test_read";
+	int send_len = 10;
+	char cip[128];
+	char buf[128];
+	char txt[64];
+	int n;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	/* Queue up one data record */
+	memrnd(txt, sizeof(txt));
+	EXPECT_EQ(send(self->fd, txt, sizeof(txt), 0), sizeof(txt));
+	n = recv(self->cfd, cip, sizeof(cip), 0);
+	EXPECT_GT(n, sizeof(txt));
+	EXPECT_EQ(send(self->fd2, cip, n, 0), n);
+
+	EXPECT_EQ(tls_send_cmsg(self->fd, 100, test_str, send_len, 0), 10);
+	n = recv(self->cfd, cip, sizeof(cip), 0);
+	cip[n - 1]++; /* Break it */
+	EXPECT_GT(n, send_len);
+	EXPECT_EQ(send(self->fd2, cip, n, 0), n);
+
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), sizeof(txt));
+	EXPECT_EQ(memcmp(buf, txt, sizeof(txt)), 0);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+	EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+	EXPECT_EQ(errno, EBADMSG);
+}
+
+TEST_F(tls_err, timeo)
+{
+	struct timeval tv = { .tv_usec = 10000, };
+	char buf[128];
+	int ret;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	ret = setsockopt(self->cfd2, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+	ASSERT_EQ(ret, 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret) {
+		usleep(1000); /* Give child a head start */
+
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+
+		wait(&ret);
+	} else {
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+		exit(0);
+	}
+}
+
+TEST_F(tls_err, poll_partial_rec)
+{
+	struct pollfd pfd = { };
+	ssize_t rec_len;
+	char rec[256];
+	char buf[128];
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	pfd.fd = self->cfd2;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 1), 0);
+
+	memrnd(buf, sizeof(buf));
+	EXPECT_EQ(send(self->fd, buf, sizeof(buf), 0), sizeof(buf));
+	rec_len = recv(self->cfd, rec, sizeof(rec), 0);
+	EXPECT_GT(rec_len, sizeof(buf));
+
+	/* Write 100B, not the full record ... */
+	EXPECT_EQ(send(self->fd2, rec, 100, 0), 100);
+	/* ... no full record should mean no POLLIN */
+	pfd.fd = self->cfd2;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 1), 0);
+	/* Now write the rest, and it should all pop out of the other end. */
+	EXPECT_EQ(send(self->fd2, rec + 100, rec_len - 100, 0), rec_len - 100);
+	pfd.fd = self->cfd2;
+	pfd.events = POLLIN;
+	EXPECT_EQ(poll(&pfd, 1, 1), 1);
+	EXPECT_EQ(recv(self->cfd2, rec, sizeof(rec), 0), sizeof(buf));
+	EXPECT_EQ(memcmp(buf, rec, sizeof(buf)), 0);
+}
+
+TEST_F(tls_err, epoll_partial_rec)
+{
+	struct epoll_event ev, events[10];
+	ssize_t rec_len;
+	char rec[256];
+	char buf[128];
+	int epollfd;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	epollfd = epoll_create1(0);
+	ASSERT_GE(epollfd, 0);
+
+	memset(&ev, 0, sizeof(ev));
+	ev.events = EPOLLIN;
+	ev.data.fd = self->cfd2;
+	ASSERT_GE(epoll_ctl(epollfd, EPOLL_CTL_ADD, self->cfd2, &ev), 0);
+
+	EXPECT_EQ(epoll_wait(epollfd, events, 10, 0), 0);
+
+	memrnd(buf, sizeof(buf));
+	EXPECT_EQ(send(self->fd, buf, sizeof(buf), 0), sizeof(buf));
+	rec_len = recv(self->cfd, rec, sizeof(rec), 0);
+	EXPECT_GT(rec_len, sizeof(buf));
+
+	/* Write 100B, not the full record ... */
+	EXPECT_EQ(send(self->fd2, rec, 100, 0), 100);
+	/* ... no full record should mean no POLLIN */
+	EXPECT_EQ(epoll_wait(epollfd, events, 10, 0), 0);
+	/* Now write the rest, and it should all pop out of the other end. */
+	EXPECT_EQ(send(self->fd2, rec + 100, rec_len - 100, 0), rec_len - 100);
+	EXPECT_EQ(epoll_wait(epollfd, events, 10, 0), 1);
+	EXPECT_EQ(recv(self->cfd2, rec, sizeof(rec), 0), sizeof(buf));
+	EXPECT_EQ(memcmp(buf, rec, sizeof(buf)), 0);
+
+	close(epollfd);
+}
+
+TEST_F(tls_err, poll_partial_rec_async)
+{
+	struct pollfd pfd = { };
+	ssize_t rec_len;
+	char rec[256];
+	char buf[128];
+	char token;
+	int p[2];
+	int ret;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	ASSERT_GE(pipe(p), 0);
+
+	memrnd(buf, sizeof(buf));
+	EXPECT_EQ(send(self->fd, buf, sizeof(buf), 0), sizeof(buf));
+	rec_len = recv(self->cfd, rec, sizeof(rec), 0);
+	EXPECT_GT(rec_len, sizeof(buf));
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret) {
+		int status, pid2;
+
+		close(p[1]);
+		usleep(1000); /* Give child a head start */
+
+		EXPECT_EQ(send(self->fd2, rec, 100, 0), 100);
+
+		EXPECT_EQ(read(p[0], &token, 1), 1); /* Barrier #1 */
+
+		EXPECT_EQ(send(self->fd2, rec + 100, rec_len - 100, 0),
+			  rec_len - 100);
+
+		pid2 = wait(&status);
+		EXPECT_EQ(pid2, ret);
+		EXPECT_EQ(status, 0);
+	} else {
+		close(p[0]);
+
+		/* Child should sleep in poll(), never get a wake */
+		pfd.fd = self->cfd2;
+		pfd.events = POLLIN;
+		EXPECT_EQ(poll(&pfd, 1, 20), 0);
+
+		EXPECT_EQ(write(p[1], &token, 1), 1); /* Barrier #1 */
+
+		pfd.fd = self->cfd2;
+		pfd.events = POLLIN;
+		EXPECT_EQ(poll(&pfd, 1, 20), 1);
+
+		exit(!__test_passed(_metadata));
+	}
+}
+
+/* Use OOB+large send to trigger copy mode due to memory pressure.
+ * OOB causes a short read.
+ */
+TEST_F(tls_err, oob_pressure)
+{
+	char buf[1<<16];
+	int i;
+
+	memrnd(buf, sizeof(buf));
+
+	EXPECT_EQ(send(self->fd2, buf, 5, MSG_OOB), 5);
+	EXPECT_EQ(send(self->fd2, buf, sizeof(buf), 0), sizeof(buf));
+	for (i = 0; i < 64; i++)
+		EXPECT_EQ(send(self->fd2, buf, 5, MSG_OOB), 5);
+}
+
+/*
+ * Parse a stream of TLS records and ensure that each record respects
+ * the specified @max_payload_len.
+ */
+static size_t parse_tls_records(struct __test_metadata *_metadata,
+				const __u8 *rx_buf, int rx_len, int overhead,
+				__u16 max_payload_len)
+{
+	const __u8 *rec = rx_buf;
+	size_t total_plaintext_rx = 0;
+	const __u8 rec_header_len = 5;
+
+	while (rec < rx_buf + rx_len) {
+		__u16 record_payload_len;
+		__u16 plaintext_len;
+
+		/* Sanity check that it's a TLS header for application data */
+		ASSERT_EQ(rec[0], 23);
+		ASSERT_EQ(rec[1], 0x3);
+		ASSERT_EQ(rec[2], 0x3);
+
+		memcpy(&record_payload_len, rec + 3, 2);
+		record_payload_len = ntohs(record_payload_len);
+		ASSERT_GE(record_payload_len, overhead);
+
+		plaintext_len = record_payload_len - overhead;
+		total_plaintext_rx += plaintext_len;
+
+		/* Plaintext must not exceed the specified limit */
+		ASSERT_LE(plaintext_len, max_payload_len);
+		rec += rec_header_len + record_payload_len;
+	}
+
+	return total_plaintext_rx;
+}
+
+TEST(tls_12_tx_max_payload_len)
+{
+	struct tls_crypto_info_keys tls12;
+	int cfd, ret, fd, overhead;
+	size_t total_plaintext_rx = 0;
+	__u8 tx[1024], rx[2000];
+	__u16 limit = 128;
+	__u16 opt = 0;
+	unsigned int optlen = sizeof(opt);
+	bool notls;
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_CCM_128,
+			     &tls12, 0);
+
+	ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+	if (notls)
+		exit(KSFT_SKIP);
+
+	/* Don't install keys on fd, we'll parse raw records */
+	ret = setsockopt(cfd, SOL_TLS, TLS_TX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(cfd, SOL_TLS, TLS_TX_MAX_PAYLOAD_LEN, &limit,
+			 sizeof(limit));
+	ASSERT_EQ(ret, 0);
+
+	ret = getsockopt(cfd, SOL_TLS, TLS_TX_MAX_PAYLOAD_LEN, &opt, &optlen);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(limit, opt);
+	EXPECT_EQ(optlen, sizeof(limit));
+
+	memset(tx, 0, sizeof(tx));
+	ASSERT_EQ(send(cfd, tx, sizeof(tx), 0), sizeof(tx));
+	close(cfd);
+
+	ret = recv(fd, rx, sizeof(rx), 0);
+
+	/*
+	 * 16B tag + 8B IV -- record header (5B) is not counted but we'll
+	 * need it to walk the record stream
+	 */
+	overhead = 16 + 8;
+	total_plaintext_rx = parse_tls_records(_metadata, rx, ret, overhead,
+					       limit);
+
+	ASSERT_EQ(total_plaintext_rx, sizeof(tx));
+	close(fd);
+}
+
+TEST(tls_12_tx_max_payload_len_open_rec)
+{
+	struct tls_crypto_info_keys tls12;
+	int cfd, ret, fd, overhead;
+	size_t total_plaintext_rx = 0;
+	__u8 tx[1024], rx[2000];
+	__u16 tx_partial = 256;
+	__u16 og_limit = 512, limit = 128;
+	bool notls;
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_CCM_128,
+			     &tls12, 0);
+
+	ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+	if (notls)
+		exit(KSFT_SKIP);
+
+	/* Don't install keys on fd, we'll parse raw records */
+	ret = setsockopt(cfd, SOL_TLS, TLS_TX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(cfd, SOL_TLS, TLS_TX_MAX_PAYLOAD_LEN, &og_limit,
+			 sizeof(og_limit));
+	ASSERT_EQ(ret, 0);
+
+	memset(tx, 0, sizeof(tx));
+	ASSERT_EQ(send(cfd, tx, tx_partial, MSG_MORE), tx_partial);
+
+	/*
+	 * Changing the payload limit with a pending open record should
+	 * not be allowed.
+	 */
+	ret = setsockopt(cfd, SOL_TLS, TLS_TX_MAX_PAYLOAD_LEN, &limit,
+			 sizeof(limit));
+	ASSERT_EQ(ret, -1);
+	ASSERT_EQ(errno, EBUSY);
+
+	ASSERT_EQ(send(cfd, tx + tx_partial, sizeof(tx) - tx_partial, MSG_EOR),
+		  sizeof(tx) - tx_partial);
+	close(cfd);
+
+	ret = recv(fd, rx, sizeof(rx), 0);
+
+	/*
+	 * 16B tag + 8B IV -- record header (5B) is not counted but we'll
+	 * need it to walk the record stream
+	 */
+	overhead = 16 + 8;
+	total_plaintext_rx = parse_tls_records(_metadata, rx, ret, overhead,
+					       og_limit);
+	ASSERT_EQ(total_plaintext_rx, sizeof(tx));
+	close(fd);
+}
+
+TEST(non_established) {
+	struct tls12_crypto_info_aes_gcm_256 tls12;
+	struct sockaddr_in addr;
+	int sfd, ret, fd;
+	socklen_t len;
+
+	len = sizeof(addr);
+
+	memset(&tls12, 0, sizeof(tls12));
+	tls12.info.version = TLS_1_2_VERSION;
+	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+	ret = bind(sfd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+	ret = listen(sfd, 10);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	EXPECT_EQ(ret, -1);
+	/* TLS ULP not supported */
+	if (errno == ENOENT)
+		return;
+	EXPECT_EQ(errno, ENOTCONN);
+
+	ret = setsockopt(sfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, ENOTCONN);
+
+	ret = getsockname(sfd, &addr, &len);
+	ASSERT_EQ(ret, 0);
+
+	ret = connect(fd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EEXIST);
+
+	close(fd);
+	close(sfd);
+}
+
+TEST(keysizes) {
+	struct tls12_crypto_info_aes_gcm_256 tls12;
+	int ret, fd, cfd;
+	bool notls;
+
+	memset(&tls12, 0, sizeof(tls12));
+	tls12.info.version = TLS_1_2_VERSION;
+	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+	ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+	if (!notls) {
+		ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12,
+				 sizeof(tls12));
+		EXPECT_EQ(ret, 0);
+
+		ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12,
+				 sizeof(tls12));
+		EXPECT_EQ(ret, 0);
+	}
+
+	close(fd);
+	close(cfd);
+}
+
+TEST(no_pad) {
+	struct tls12_crypto_info_aes_gcm_256 tls12;
+	int ret, fd, cfd, val;
+	socklen_t len;
+	bool notls;
+
+	memset(&tls12, 0, sizeof(tls12));
+	tls12.info.version = TLS_1_3_VERSION;
+	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+	ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+	if (notls)
+		exit(KSFT_SKIP);
+
+	ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12, sizeof(tls12));
+	EXPECT_EQ(ret, 0);
+
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12, sizeof(tls12));
+	EXPECT_EQ(ret, 0);
+
+	val = 1;
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, sizeof(val));
+	EXPECT_EQ(ret, 0);
+
+	len = sizeof(val);
+	val = 2;
+	ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, &len);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(val, 1);
+	EXPECT_EQ(len, 4);
+
+	val = 0;
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, sizeof(val));
+	EXPECT_EQ(ret, 0);
+
+	len = sizeof(val);
+	val = 2;
+	ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, &len);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(val, 0);
+	EXPECT_EQ(len, 4);
+
+	close(fd);
+	close(cfd);
+}
+
+TEST(tls_v6ops) {
+	struct tls_crypto_info_keys tls12;
+	struct sockaddr_in6 addr, addr2;
+	int sfd, ret, fd;
+	socklen_t len, len2;
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_GCM_128, &tls12, 0);
+
+	addr.sin6_family = AF_INET6;
+	addr.sin6_addr = in6addr_any;
+	addr.sin6_port = 0;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	sfd = socket(AF_INET6, SOCK_STREAM, 0);
+
+	ret = bind(sfd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+	ret = listen(sfd, 10);
+	ASSERT_EQ(ret, 0);
+
+	len = sizeof(addr);
+	ret = getsockname(sfd, &addr, &len);
+	ASSERT_EQ(ret, 0);
+
+	ret = connect(fd, &addr, sizeof(addr));
+	ASSERT_EQ(ret, 0);
+
+	len = sizeof(addr);
+	ret = getsockname(fd, &addr, &len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (ret) {
+		ASSERT_EQ(errno, ENOENT);
+		SKIP(return, "no TLS support");
+	}
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	ret = setsockopt(fd, SOL_TLS, TLS_RX, &tls12, tls12.len);
+	ASSERT_EQ(ret, 0);
+
+	len2 = sizeof(addr2);
+	ret = getsockname(fd, &addr2, &len2);
+	ASSERT_EQ(ret, 0);
+
+	EXPECT_EQ(len2, len);
+	EXPECT_EQ(memcmp(&addr, &addr2, len), 0);
+
+	close(fd);
+	close(sfd);
+}
+
+TEST(prequeue) {
+	struct tls_crypto_info_keys tls12;
+	char buf[20000], buf2[20000];
+	struct sockaddr_in addr;
+	int sfd, cfd, ret, fd;
+	socklen_t len;
+
+	len = sizeof(addr);
+	memrnd(buf, sizeof(buf));
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_GCM_256, &tls12, 0);
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+	ASSERT_EQ(bind(sfd, &addr, sizeof(addr)), 0);
+	ASSERT_EQ(listen(sfd, 10), 0);
+	ASSERT_EQ(getsockname(sfd, &addr, &len), 0);
+	ASSERT_EQ(connect(fd, &addr, sizeof(addr)), 0);
+	ASSERT_GE(cfd = accept(sfd, &addr, &len), 0);
+	close(sfd);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (ret) {
+		ASSERT_EQ(errno, ENOENT);
+		SKIP(return, "no TLS support");
+	}
+
+	ASSERT_EQ(setsockopt(fd, SOL_TLS, TLS_TX, &tls12, tls12.len), 0);
+	EXPECT_EQ(send(fd, buf, sizeof(buf), MSG_DONTWAIT), sizeof(buf));
+
+	ASSERT_EQ(setsockopt(cfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls")), 0);
+	ASSERT_EQ(setsockopt(cfd, SOL_TLS, TLS_RX, &tls12, tls12.len), 0);
+	EXPECT_EQ(recv(cfd, buf2, sizeof(buf2), MSG_WAITALL), sizeof(buf2));
+
+	EXPECT_EQ(memcmp(buf, buf2, sizeof(buf)), 0);
+
+	close(fd);
+	close(cfd);
+}
+
+TEST(data_steal) {
+	struct tls_crypto_info_keys tls;
+	char buf[20000], buf2[20000];
+	struct sockaddr_in addr;
+	int sfd, cfd, ret, fd;
+	int pid, status;
+	socklen_t len;
+
+	len = sizeof(addr);
+	memrnd(buf, sizeof(buf));
+
+	tls_crypto_info_init(TLS_1_2_VERSION, TLS_CIPHER_AES_GCM_256, &tls, 0);
+
+	addr.sin_family = AF_INET;
+	addr.sin_addr.s_addr = htonl(INADDR_ANY);
+	addr.sin_port = 0;
+
+	fd = socket(AF_INET, SOCK_STREAM, 0);
+	sfd = socket(AF_INET, SOCK_STREAM, 0);
+
+	ASSERT_EQ(bind(sfd, &addr, sizeof(addr)), 0);
+	ASSERT_EQ(listen(sfd, 10), 0);
+	ASSERT_EQ(getsockname(sfd, &addr, &len), 0);
+	ASSERT_EQ(connect(fd, &addr, sizeof(addr)), 0);
+	ASSERT_GE(cfd = accept(sfd, &addr, &len), 0);
+	close(sfd);
+
+	ret = setsockopt(fd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls"));
+	if (ret) {
+		ASSERT_EQ(errno, ENOENT);
+		SKIP(return, "no TLS support");
+	}
+	ASSERT_EQ(setsockopt(cfd, IPPROTO_TCP, TCP_ULP, "tls", sizeof("tls")), 0);
+
+	/* Spawn a child and get it into the read wait path of the underlying
+	 * TCP socket.
+	 */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (!pid) {
+		EXPECT_EQ(recv(cfd, buf, sizeof(buf) / 2, MSG_WAITALL),
+			  sizeof(buf) / 2);
+		exit(!__test_passed(_metadata));
+	}
+
+	usleep(10000);
+	ASSERT_EQ(setsockopt(fd, SOL_TLS, TLS_TX, &tls, tls.len), 0);
+	ASSERT_EQ(setsockopt(cfd, SOL_TLS, TLS_RX, &tls, tls.len), 0);
+
+	EXPECT_EQ(send(fd, buf, sizeof(buf), 0), sizeof(buf));
+	EXPECT_EQ(wait(&status), pid);
+	EXPECT_EQ(status, 0);
+	EXPECT_EQ(recv(cfd, buf2, sizeof(buf2), MSG_DONTWAIT), -1);
+	/* Don't check errno, the error will be different depending
+	 * on what random bytes TLS interpreted as the record length.
+	 */
+
+	close(fd);
+	close(cfd);
+}
+
+static void __attribute__((constructor)) fips_check(void) {
+	int res;
+	FILE *f;
+
+	f = fopen("/proc/sys/crypto/fips_enabled", "r");
+	if (f) {
+		res = fscanf(f, "%d", &fips_enabled);
+		if (res != 1)
+			ksft_print_msg("ERROR: Couldn't read /proc/sys/crypto/fips_enabled\n");
+		fclose(f);
+	}
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/traceroute.sh b/tools/testing/selftests/net/traceroute.sh
new file mode 100755
index 000000000000..a7c6ab8a0347
--- /dev/null
+++ b/tools/testing/selftests/net/traceroute.sh
@@ -0,0 +1,781 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run traceroute/traceroute6 tests
+#
+
+source lib.sh
+VERBOSE=0
+PAUSE_ON_FAIL=no
+
+################################################################################
+#
+run_cmd()
+{
+	local ns
+	local cmd
+	local out
+	local rc
+
+	ns="$1"
+	shift
+	cmd="$*"
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+	fi
+
+	out=$(eval ip netns exec ${ns} ${cmd} 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" -a -n "$out" ]; then
+		echo "    $out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+__check_traceroute_version()
+{
+	local cmd=$1; shift
+	local req_ver=$1; shift
+	local ver
+
+	req_ver=$(echo "$req_ver" | sed 's/\.//g')
+	ver=$($cmd -V 2>&1 | grep -Eo '[0-9]+.[0-9]+.[0-9]+' | sed 's/\.//g')
+	if [[ $ver -lt $req_ver ]]; then
+		return 1
+	else
+		return 0
+	fi
+}
+
+check_traceroute6_version()
+{
+	local req_ver=$1; shift
+
+	__check_traceroute_version traceroute6 "$req_ver"
+}
+
+check_traceroute_version()
+{
+	local req_ver=$1; shift
+
+	__check_traceroute_version traceroute "$req_ver"
+}
+
+################################################################################
+# create namespaces and interconnects
+
+create_ns()
+{
+	local ns=$1
+	local addr=$2
+	local addr6=$3
+
+	[ -z "${addr}" ] && addr="-"
+	[ -z "${addr6}" ] && addr6="-"
+
+	if [ "${addr}" != "-" ]; then
+		ip netns exec ${ns} ip addr add dev lo ${addr}
+	fi
+	if [ "${addr6}" != "-" ]; then
+		ip netns exec ${ns} ip -6 addr add dev lo ${addr6}
+	fi
+
+	ip netns exec ${ns} ip ro add unreachable default metric 8192
+	ip netns exec ${ns} ip -6 ro add unreachable default metric 8192
+
+	ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec ${ns} sysctl -qw net.ipv4.icmp_ratelimit=0
+	ip netns exec ${ns} sysctl -qw net.ipv6.icmp.ratelimit=0
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+	local ns1=$1
+	local ns1_dev=$2
+	local ns1_addr=$3
+	local ns1_addr6=$4
+	local ns2=$5
+	local ns2_dev=$6
+	local ns2_addr=$7
+	local ns2_addr6=$8
+
+	ip netns exec ${ns1} ip li add ${ns1_dev} type veth peer name tmp
+	ip netns exec ${ns1} ip li set ${ns1_dev} up
+	ip netns exec ${ns1} ip li set tmp netns ${ns2} name ${ns2_dev}
+	ip netns exec ${ns2} ip li set ${ns2_dev} up
+
+	if [ "${ns1_addr}" != "-" ]; then
+		ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr}
+	fi
+
+	if [ "${ns2_addr}" != "-" ]; then
+		ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr}
+	fi
+
+	if [ "${ns1_addr6}" != "-" ]; then
+		ip netns exec ${ns1} ip addr add dev ${ns1_dev} ${ns1_addr6}
+	fi
+
+	if [ "${ns2_addr6}" != "-" ]; then
+		ip netns exec ${ns2} ip addr add dev ${ns2_dev} ${ns2_addr6}
+	fi
+}
+
+################################################################################
+# traceroute6 test
+#
+# Verify that in this scenario
+#
+#        ------------------------ N2
+#         |                    |
+#       ------              ------  N3  ----
+#       | R1 |              | R2 |------|H2|
+#       ------              ------      ----
+#         |                    |
+#        ------------------------ N1
+#                  |
+#                 ----
+#                 |H1|
+#                 ----
+#
+# where H1's default route goes through R1 and R1's default route goes
+# through R2 over N2, traceroute6 from H1 to H2 reports R2's address
+# on N2 and not N1.
+#
+# Addresses are assigned as follows:
+#
+# N1: 2000:101::/64
+# N2: 2000:102::/64
+# N3: 2000:103::/64
+#
+# R1's host part of address: 1
+# R2's host part of address: 2
+# H1's host part of address: 3
+# H2's host part of address: 4
+#
+# For example:
+# the IPv6 address of R1's interface on N2 is 2000:102::1/64
+
+cleanup_traceroute6()
+{
+	cleanup_ns $h1 $h2 $r1 $r2
+}
+
+setup_traceroute6()
+{
+	brdev=br0
+
+	# start clean
+	cleanup_traceroute6
+
+	set -e
+	setup_ns h1 h2 r1 r2
+	create_ns $h1
+	create_ns $h2
+	create_ns $r1
+	create_ns $r2
+
+	# Setup N3
+	connect_ns $r2 eth3 - 2000:103::2/64 $h2 eth3 - 2000:103::4/64
+	ip netns exec $h2 ip route add default via 2000:103::2
+
+	# Setup N2
+	connect_ns $r1 eth2 - 2000:102::1/64 $r2 eth2 - 2000:102::2/64
+	ip netns exec $r1 ip route add default via 2000:102::2
+
+	# Setup N1. host-1 and router-2 connect to a bridge in router-1.
+	ip netns exec $r1 ip link add name ${brdev} type bridge
+	ip netns exec $r1 ip link set ${brdev} up
+	ip netns exec $r1 ip addr add 2000:101::1/64 dev ${brdev}
+
+	connect_ns $h1 eth0 - 2000:101::3/64 $r1 eth0 - -
+	ip netns exec $r1 ip link set dev eth0 master ${brdev}
+	ip netns exec $h1 ip route add default via 2000:101::1
+
+	connect_ns $r2 eth1 - 2000:101::2/64 $r1 eth1 - -
+	ip netns exec $r1 ip link set dev eth1 master ${brdev}
+
+	# Prime the network
+	ip netns exec $h1 ping6 -c5 2000:103::4 >/dev/null 2>&1
+
+	set +e
+}
+
+run_traceroute6()
+{
+	setup_traceroute6
+
+	RET=0
+
+	# traceroute6 host-2 from host-1 (expects 2000:102::2)
+	run_cmd $h1 "traceroute6 2000:103::4 | grep -q 2000:102::2"
+	check_err $? "traceroute6 did not return 2000:102::2"
+	log_test "IPv6 traceroute"
+
+	cleanup_traceroute6
+}
+
+################################################################################
+# traceroute6 with VRF test
+#
+# Verify that in this scenario
+#
+#        ------------------------ N2
+#         |                    |
+#       ------              ------  N3  ----
+#       | R1 |              | R2 |------|H2|
+#       ------              ------      ----
+#         |                    |
+#        ------------------------ N1
+#                  |
+#                 ----
+#                 |H1|
+#                 ----
+#
+# Where H1's default route goes through R1 and R1's default route goes through
+# R2 over N2, traceroute6 from H1 to H2 reports R2's address on N2 and not N1.
+# The interfaces connecting R2 to the different subnets are membmer in a VRF
+# and the intention is to check that traceroute6 does not report the VRF's
+# address.
+#
+# Addresses are assigned as follows:
+#
+# N1: 2000:101::/64
+# N2: 2000:102::/64
+# N3: 2000:103::/64
+#
+# R1's host part of address: 1
+# R2's host part of address: 2
+# H1's host part of address: 3
+# H2's host part of address: 4
+#
+# For example:
+# the IPv6 address of R1's interface on N2 is 2000:102::1/64
+
+cleanup_traceroute6_vrf()
+{
+	cleanup_all_ns
+}
+
+setup_traceroute6_vrf()
+{
+	# Start clean
+	cleanup_traceroute6_vrf
+
+	setup_ns h1 h2 r1 r2
+	create_ns "$h1"
+	create_ns "$h2"
+	create_ns "$r1"
+	create_ns "$r2"
+
+	ip -n "$r2" link add name vrf100 up type vrf table 100
+	ip -n "$r2" addr add 2001:db8:100::1/64 dev vrf100
+
+	# Setup N3
+	connect_ns "$r2" eth3 - 2000:103::2/64 "$h2" eth3 - 2000:103::4/64
+
+	ip -n "$r2" link set dev eth3 master vrf100
+
+	ip -n "$h2" route add default via 2000:103::2
+
+	# Setup N2
+	connect_ns "$r1" eth2 - 2000:102::1/64 "$r2" eth2 - 2000:102::2/64
+
+	ip -n "$r1" route add default via 2000:102::2
+
+	ip -n "$r2" link set dev eth2 master vrf100
+
+	# Setup N1. host-1 and router-2 connect to a bridge in router-1.
+	ip -n "$r1" link add name br100 up type bridge
+	ip -n "$r1" addr add 2000:101::1/64 dev br100
+
+	connect_ns "$h1" eth0 - 2000:101::3/64 "$r1" eth0 - -
+
+	ip -n "$h1" route add default via 2000:101::1
+
+	ip -n "$r1" link set dev eth0 master br100
+
+	connect_ns "$r2" eth1 - 2000:101::2/64 "$r1" eth1 - -
+
+	ip -n "$r2" link set dev eth1 master vrf100
+
+	ip -n "$r1" link set dev eth1 master br100
+
+	# Prime the network
+	ip netns exec "$h1" ping6 -c5 2000:103::4 >/dev/null 2>&1
+}
+
+run_traceroute6_vrf()
+{
+	setup_traceroute6_vrf
+
+	RET=0
+
+	# traceroute6 host-2 from host-1 (expects 2000:102::2)
+	run_cmd "$h1" "traceroute6 2000:103::4 | grep 2000:102::2"
+	check_err $? "traceroute6 did not return 2000:102::2"
+	log_test "IPv6 traceroute with VRF"
+
+	cleanup_traceroute6_vrf
+}
+
+################################################################################
+# traceroute6 with ICMP extensions test
+#
+# Verify that in this scenario
+#
+# ----                          ----                          ----
+# |H1|--------------------------|R1|--------------------------|H2|
+# ----            N1            ----            N2            ----
+#
+# ICMP extensions are correctly reported. The loopback interfaces on all the
+# nodes are assigned global addresses and the interfaces connecting the nodes
+# are assigned IPv6 link-local addresses.
+
+cleanup_traceroute6_ext()
+{
+	cleanup_all_ns
+}
+
+setup_traceroute6_ext()
+{
+	# Start clean
+	cleanup_traceroute6_ext
+
+	setup_ns h1 r1 h2
+	create_ns "$h1"
+	create_ns "$r1"
+	create_ns "$h2"
+
+	# Setup N1
+	connect_ns "$h1" eth1 - fe80::1/64 "$r1" eth1 - fe80::2/64
+	# Setup N2
+	connect_ns "$r1" eth2 - fe80::3/64 "$h2" eth2 - fe80::4/64
+
+	# Setup H1
+	ip -n "$h1" address add 2001:db8:1::1/128 dev lo
+	ip -n "$h1" route add ::/0 nexthop via fe80::2 dev eth1
+
+	# Setup R1
+	ip -n "$r1" address add 2001:db8:1::2/128 dev lo
+	ip -n "$r1" route add 2001:db8:1::1/128 nexthop via fe80::1 dev eth1
+	ip -n "$r1" route add 2001:db8:1::3/128 nexthop via fe80::4 dev eth2
+
+	# Setup H2
+	ip -n "$h2" address add 2001:db8:1::3/128 dev lo
+	ip -n "$h2" route add ::/0 nexthop via fe80::3 dev eth2
+
+	# Prime the network
+	ip netns exec "$h1" ping6 -c5 2001:db8:1::3 >/dev/null 2>&1
+}
+
+traceroute6_ext_iio_iif_test()
+{
+	local r1_ifindex h2_ifindex
+	local pkt_len=$1; shift
+
+	# Test that incoming interface info is not appended by default.
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep INC"
+	check_fail $? "Incoming interface info appended by default when should not"
+
+	# Test that the extension is appended when enabled.
+	run_cmd "$r1" "bash -c \"echo 0x01 > /proc/sys/net/ipv6/icmp/errors_extension_mask\""
+	check_err $? "Failed to enable incoming interface info extension on R1"
+
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep INC"
+	check_err $? "Incoming interface info not appended after enable"
+
+	# Test that the extension is not appended when disabled.
+	run_cmd "$r1" "bash -c \"echo 0x00 > /proc/sys/net/ipv6/icmp/errors_extension_mask\""
+	check_err $? "Failed to disable incoming interface info extension on R1"
+
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep INC"
+	check_fail $? "Incoming interface info appended after disable"
+
+	# Test that the extension is sent correctly from both R1 and H2.
+	run_cmd "$r1" "sysctl -w net.ipv6.icmp.errors_extension_mask=0x01"
+	r1_ifindex=$(ip -n "$r1" -j link show dev eth1 | jq '.[]["ifindex"]')
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep '<INC:$r1_ifindex,\"eth1\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from R1"
+
+	run_cmd "$h2" "sysctl -w net.ipv6.icmp.errors_extension_mask=0x01"
+	h2_ifindex=$(ip -n "$h2" -j link show dev eth2 | jq '.[]["ifindex"]')
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep '<INC:$h2_ifindex,\"eth2\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from H2"
+
+	# Add a global address on the incoming interface of R1 and check that
+	# it is reported.
+	run_cmd "$r1" "ip address add 2001:db8:100::1/64 dev eth1 nodad"
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep '<INC:$r1_ifindex,2001:db8:100::1,\"eth1\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from R1 after address addition"
+	run_cmd "$r1" "ip address del 2001:db8:100::1/64 dev eth1"
+
+	# Change name and MTU and make sure the result is still correct.
+	run_cmd "$r1" "ip link set dev eth1 name eth1tag mtu 1501"
+	run_cmd "$h1" "traceroute6 -e 2001:db8:1::3 $pkt_len | grep '<INC:$r1_ifindex,\"eth1tag\",mtu=1501>'"
+	check_err $? "Wrong incoming interface info reported from R1 after name and MTU change"
+	run_cmd "$r1" "ip link set dev eth1tag name eth1 mtu 1500"
+
+	run_cmd "$r1" "sysctl -w net.ipv6.icmp.errors_extension_mask=0x00"
+	run_cmd "$h2" "sysctl -w net.ipv6.icmp.errors_extension_mask=0x00"
+}
+
+run_traceroute6_ext()
+{
+	# Need at least version 2.1.5 for RFC 5837 support.
+	if ! check_traceroute6_version 2.1.5; then
+		log_test_skip "traceroute6 too old, missing ICMP extensions support"
+		return
+	fi
+
+	setup_traceroute6_ext
+
+	RET=0
+
+	## General ICMP extensions tests
+
+	# Test that ICMP extensions are disabled by default.
+	run_cmd "$h1" "sysctl net.ipv6.icmp.errors_extension_mask | grep \"= 0$\""
+	check_err $? "ICMP extensions are not disabled by default"
+
+	# Test that unsupported values are rejected. Do not use "sysctl" as
+	# older versions do not return an error code upon failure.
+	run_cmd "$h1" "bash -c \"echo 0x80 > /proc/sys/net/ipv6/icmp/errors_extension_mask\""
+	check_fail $? "Unsupported sysctl value was not rejected"
+
+	## Extension-specific tests
+
+	# Incoming interface info test. Test with various packet sizes,
+	# including the default one.
+	traceroute6_ext_iio_iif_test
+	traceroute6_ext_iio_iif_test 127
+	traceroute6_ext_iio_iif_test 128
+	traceroute6_ext_iio_iif_test 129
+
+	log_test "IPv6 traceroute with ICMP extensions"
+
+	cleanup_traceroute6_ext
+}
+
+################################################################################
+# traceroute test
+#
+# Verify that traceroute from H1 to H2 shows 1.0.3.1 and 1.0.1.1 when
+# traceroute uses 1.0.3.3 and 1.0.1.3 as the source IP, respectively.
+#
+#      1.0.3.3/24    1.0.3.1/24
+# ---- 1.0.1.3/24    1.0.1.1/24 ---- 1.0.2.1/24    1.0.2.4/24 ----
+# |H1|--------------------------|R1|--------------------------|H2|
+# ----            N1            ----            N2            ----
+#
+# where net.ipv4.icmp_errors_use_inbound_ifaddr is set on R1 and 1.0.3.1/24 and
+# 1.0.1.1/24 are R1's primary addresses on N1. The kernel is expected to prefer
+# a source address that is on the same subnet as the destination IP of the ICMP
+# error message.
+
+cleanup_traceroute()
+{
+	cleanup_ns $h1 $h2 $router
+}
+
+setup_traceroute()
+{
+	# start clean
+	cleanup_traceroute
+
+	set -e
+	setup_ns h1 h2 router
+	create_ns $h1
+	create_ns $h2
+	create_ns $router
+
+	connect_ns $h1 eth0 1.0.1.3/24 - \
+	           $router eth1 1.0.3.1/24 -
+	ip -n "$h1" addr add 1.0.3.3/24 dev eth0
+	ip netns exec $h1 ip route add default via 1.0.1.1
+
+	ip netns exec $router ip addr add 1.0.1.1/24 dev eth1
+	ip netns exec $router sysctl -qw \
+				net.ipv4.icmp_errors_use_inbound_ifaddr=1
+
+	connect_ns $h2 eth0 1.0.2.4/24 - \
+	           $router eth2 1.0.2.1/24 -
+	ip netns exec $h2 ip route add default via 1.0.2.1
+
+	# Prime the network
+	ip netns exec $h1 ping -c5 1.0.2.4 >/dev/null 2>&1
+
+	set +e
+}
+
+run_traceroute()
+{
+	setup_traceroute
+
+	RET=0
+
+	# traceroute host-2 from host-1. Expect a source IP that is on the same
+	# subnet as destination IP of the ICMP error message.
+	run_cmd "$h1" "traceroute -s 1.0.1.3 1.0.2.4 | grep -q 1.0.1.1"
+	check_err $? "traceroute did not return 1.0.1.1"
+	run_cmd "$h1" "traceroute -s 1.0.3.3 1.0.2.4 | grep -q 1.0.3.1"
+	check_err $? "traceroute did not return 1.0.3.1"
+	log_test "IPv4 traceroute"
+
+	cleanup_traceroute
+}
+
+################################################################################
+# traceroute with VRF test
+#
+# Verify that traceroute from H1 to H2 shows 1.0.3.1 and 1.0.1.1 when
+# traceroute uses 1.0.3.3 and 1.0.1.3 as the source IP, respectively. The
+# intention is to check that the kernel does not choose an IP assigned to the
+# VRF device, but rather an address from the VRF port (eth1) that received the
+# packet that generates the ICMP error message.
+#
+#                          1.0.4.1/24 (vrf100)
+#      1.0.3.3/24    1.0.3.1/24
+# ---- 1.0.1.3/24    1.0.1.1/24 ---- 1.0.2.1/24    1.0.2.4/24 ----
+# |H1|--------------------------|R1|--------------------------|H2|
+# ----            N1            ----            N2            ----
+
+cleanup_traceroute_vrf()
+{
+	cleanup_all_ns
+}
+
+setup_traceroute_vrf()
+{
+	# Start clean
+	cleanup_traceroute_vrf
+
+	setup_ns h1 h2 router
+	create_ns "$h1"
+	create_ns "$h2"
+	create_ns "$router"
+
+	ip -n "$router" link add name vrf100 up type vrf table 100
+	ip -n "$router" addr add 1.0.4.1/24 dev vrf100
+
+	connect_ns "$h1" eth0 1.0.1.3/24 - \
+	           "$router" eth1 1.0.1.1/24 -
+
+	ip -n "$h1" addr add 1.0.3.3/24 dev eth0
+	ip -n "$h1" route add default via 1.0.1.1
+
+	ip -n "$router" link set dev eth1 master vrf100
+	ip -n "$router" addr add 1.0.3.1/24 dev eth1
+	ip netns exec "$router" sysctl -qw \
+		net.ipv4.icmp_errors_use_inbound_ifaddr=1
+
+	connect_ns "$h2" eth0 1.0.2.4/24 - \
+	           "$router" eth2 1.0.2.1/24 -
+
+	ip -n "$h2" route add default via 1.0.2.1
+
+	ip -n "$router" link set dev eth2 master vrf100
+
+	# Prime the network
+	ip netns exec "$h1" ping -c5 1.0.2.4 >/dev/null 2>&1
+}
+
+run_traceroute_vrf()
+{
+	setup_traceroute_vrf
+
+	RET=0
+
+	# traceroute host-2 from host-1. Expect a source IP that is on the same
+	# subnet as destination IP of the ICMP error message.
+	run_cmd "$h1" "traceroute -s 1.0.1.3 1.0.2.4 | grep 1.0.1.1"
+	check_err $? "traceroute did not return 1.0.1.1"
+	run_cmd "$h1" "traceroute -s 1.0.3.3 1.0.2.4 | grep 1.0.3.1"
+	check_err $? "traceroute did not return 1.0.3.1"
+	log_test "IPv4 traceroute with VRF"
+
+	cleanup_traceroute_vrf
+}
+
+################################################################################
+# traceroute with ICMP extensions test
+#
+# Verify that in this scenario
+#
+# ----                          ----                          ----
+# |H1|--------------------------|R1|--------------------------|H2|
+# ----            N1            ----            N2            ----
+#
+# ICMP extensions are correctly reported. The loopback interfaces on all the
+# nodes are assigned global addresses and the interfaces connecting the nodes
+# are assigned IPv6 link-local addresses.
+
+cleanup_traceroute_ext()
+{
+	cleanup_all_ns
+}
+
+setup_traceroute_ext()
+{
+	# Start clean
+	cleanup_traceroute_ext
+
+	setup_ns h1 r1 h2
+	create_ns "$h1"
+	create_ns "$r1"
+	create_ns "$h2"
+
+	# Setup N1
+	connect_ns "$h1" eth1 - fe80::1/64 "$r1" eth1 - fe80::2/64
+	# Setup N2
+	connect_ns "$r1" eth2 - fe80::3/64 "$h2" eth2 - fe80::4/64
+
+	# Setup H1
+	ip -n "$h1" address add 192.0.2.1/32 dev lo
+	ip -n "$h1" route add 0.0.0.0/0 nexthop via inet6 fe80::2 dev eth1
+
+	# Setup R1
+	ip -n "$r1" address add 192.0.2.2/32 dev lo
+	ip -n "$r1" route add 192.0.2.1/32 nexthop via inet6 fe80::1 dev eth1
+	ip -n "$r1" route add 192.0.2.3/32 nexthop via inet6 fe80::4 dev eth2
+
+	# Setup H2
+	ip -n "$h2" address add 192.0.2.3/32 dev lo
+	ip -n "$h2" route add 0.0.0.0/0 nexthop via inet6 fe80::3 dev eth2
+
+	# Prime the network
+	ip netns exec "$h1" ping -c5 192.0.2.3 >/dev/null 2>&1
+}
+
+traceroute_ext_iio_iif_test()
+{
+	local r1_ifindex h2_ifindex
+	local pkt_len=$1; shift
+
+	# Test that incoming interface info is not appended by default.
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep INC"
+	check_fail $? "Incoming interface info appended by default when should not"
+
+	# Test that the extension is appended when enabled.
+	run_cmd "$r1" "bash -c \"echo 0x01 > /proc/sys/net/ipv4/icmp_errors_extension_mask\""
+	check_err $? "Failed to enable incoming interface info extension on R1"
+
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep INC"
+	check_err $? "Incoming interface info not appended after enable"
+
+	# Test that the extension is not appended when disabled.
+	run_cmd "$r1" "bash -c \"echo 0x00 > /proc/sys/net/ipv4/icmp_errors_extension_mask\""
+	check_err $? "Failed to disable incoming interface info extension on R1"
+
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep INC"
+	check_fail $? "Incoming interface info appended after disable"
+
+	# Test that the extension is sent correctly from both R1 and H2.
+	run_cmd "$r1" "sysctl -w net.ipv4.icmp_errors_extension_mask=0x01"
+	r1_ifindex=$(ip -n "$r1" -j link show dev eth1 | jq '.[]["ifindex"]')
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep '<INC:$r1_ifindex,\"eth1\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from R1"
+
+	run_cmd "$h2" "sysctl -w net.ipv4.icmp_errors_extension_mask=0x01"
+	h2_ifindex=$(ip -n "$h2" -j link show dev eth2 | jq '.[]["ifindex"]')
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep '<INC:$h2_ifindex,\"eth2\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from H2"
+
+	# Add a global address on the incoming interface of R1 and check that
+	# it is reported.
+	run_cmd "$r1" "ip address add 198.51.100.1/24 dev eth1"
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep '<INC:$r1_ifindex,198.51.100.1,\"eth1\",mtu=1500>'"
+	check_err $? "Wrong incoming interface info reported from R1 after address addition"
+	run_cmd "$r1" "ip address del 198.51.100.1/24 dev eth1"
+
+	# Change name and MTU and make sure the result is still correct.
+	# Re-add the route towards H1 since it was deleted when we removed the
+	# last IPv4 address from eth1 on R1.
+	run_cmd "$r1" "ip route add 192.0.2.1/32 nexthop via inet6 fe80::1 dev eth1"
+	run_cmd "$r1" "ip link set dev eth1 name eth1tag mtu 1501"
+	run_cmd "$h1" "traceroute -e 192.0.2.3 $pkt_len | grep '<INC:$r1_ifindex,\"eth1tag\",mtu=1501>'"
+	check_err $? "Wrong incoming interface info reported from R1 after name and MTU change"
+	run_cmd "$r1" "ip link set dev eth1tag name eth1 mtu 1500"
+
+	run_cmd "$r1" "sysctl -w net.ipv4.icmp_errors_extension_mask=0x00"
+	run_cmd "$h2" "sysctl -w net.ipv4.icmp_errors_extension_mask=0x00"
+}
+
+run_traceroute_ext()
+{
+	# Need at least version 2.1.5 for RFC 5837 support.
+	if ! check_traceroute_version 2.1.5; then
+		log_test_skip "traceroute too old, missing ICMP extensions support"
+		return
+	fi
+
+	setup_traceroute_ext
+
+	RET=0
+
+	## General ICMP extensions tests
+
+	# Test that ICMP extensions are disabled by default.
+	run_cmd "$h1" "sysctl net.ipv4.icmp_errors_extension_mask | grep \"= 0$\""
+	check_err $? "ICMP extensions are not disabled by default"
+
+	# Test that unsupported values are rejected. Do not use "sysctl" as
+	# older versions do not return an error code upon failure.
+	run_cmd "$h1" "bash -c \"echo 0x80 > /proc/sys/net/ipv4/icmp_errors_extension_mask\""
+	check_fail $? "Unsupported sysctl value was not rejected"
+
+	## Extension-specific tests
+
+	# Incoming interface info test. Test with various packet sizes,
+	# including the default one.
+	traceroute_ext_iio_iif_test
+	traceroute_ext_iio_iif_test 127
+	traceroute_ext_iio_iif_test 128
+	traceroute_ext_iio_iif_test 129
+
+	log_test "IPv4 traceroute with ICMP extensions"
+
+	cleanup_traceroute_ext
+}
+
+################################################################################
+# Run tests
+
+run_tests()
+{
+	run_traceroute6
+	run_traceroute6_vrf
+	run_traceroute6_ext
+	run_traceroute
+	run_traceroute_vrf
+	run_traceroute_ext
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		*) exit 1;;
+	esac
+done
+
+require_command traceroute6
+require_command traceroute
+require_command jq
+
+run_tests
+
+exit "${EXIT_STATUS}"
diff --git a/tools/testing/selftests/net/tun.c b/tools/testing/selftests/net/tun.c
new file mode 100644
index 000000000000..0efc67b0357a
--- /dev/null
+++ b/tools/testing/selftests/net/tun.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <linux/if.h>
+#include <linux/if_tun.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include "kselftest_harness.h"
+
+static int tun_attach(int fd, char *dev)
+{
+	struct ifreq ifr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strcpy(ifr.ifr_name, dev);
+	ifr.ifr_flags = IFF_ATTACH_QUEUE;
+
+	return ioctl(fd, TUNSETQUEUE, (void *) &ifr);
+}
+
+static int tun_detach(int fd, char *dev)
+{
+	struct ifreq ifr;
+
+	memset(&ifr, 0, sizeof(ifr));
+	strcpy(ifr.ifr_name, dev);
+	ifr.ifr_flags = IFF_DETACH_QUEUE;
+
+	return ioctl(fd, TUNSETQUEUE, (void *) &ifr);
+}
+
+static int tun_alloc(char *dev)
+{
+	struct ifreq ifr;
+	int fd, err;
+
+	fd = open("/dev/net/tun", O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, "can't open tun: %s\n", strerror(errno));
+		return fd;
+	}
+
+	memset(&ifr, 0, sizeof(ifr));
+	strcpy(ifr.ifr_name, dev);
+	ifr.ifr_flags = IFF_TAP | IFF_NAPI | IFF_MULTI_QUEUE;
+
+	err = ioctl(fd, TUNSETIFF, (void *) &ifr);
+	if (err < 0) {
+		fprintf(stderr, "can't TUNSETIFF: %s\n", strerror(errno));
+		close(fd);
+		return err;
+	}
+	strcpy(dev, ifr.ifr_name);
+	return fd;
+}
+
+static int tun_delete(char *dev)
+{
+	struct {
+		struct nlmsghdr  nh;
+		struct ifinfomsg ifm;
+		unsigned char    data[64];
+	} req;
+	struct rtattr *rta;
+	int ret, rtnl;
+
+	rtnl = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_ROUTE);
+	if (rtnl < 0) {
+		fprintf(stderr, "can't open rtnl: %s\n", strerror(errno));
+		return 1;
+	}
+
+	memset(&req, 0, sizeof(req));
+	req.nh.nlmsg_len = NLMSG_ALIGN(NLMSG_LENGTH(sizeof(req.ifm)));
+	req.nh.nlmsg_flags = NLM_F_REQUEST;
+	req.nh.nlmsg_type = RTM_DELLINK;
+
+	req.ifm.ifi_family = AF_UNSPEC;
+
+	rta = (struct rtattr *)(((char *)&req) + NLMSG_ALIGN(req.nh.nlmsg_len));
+	rta->rta_type = IFLA_IFNAME;
+	rta->rta_len = RTA_LENGTH(IFNAMSIZ);
+	req.nh.nlmsg_len += rta->rta_len;
+	memcpy(RTA_DATA(rta), dev, IFNAMSIZ);
+
+	ret = send(rtnl, &req, req.nh.nlmsg_len, 0);
+	if (ret < 0)
+		fprintf(stderr, "can't send: %s\n", strerror(errno));
+	ret = (unsigned int)ret != req.nh.nlmsg_len;
+
+	close(rtnl);
+	return ret;
+}
+
+FIXTURE(tun)
+{
+	char ifname[IFNAMSIZ];
+	int fd, fd2;
+};
+
+FIXTURE_SETUP(tun)
+{
+	memset(self->ifname, 0, sizeof(self->ifname));
+
+	self->fd = tun_alloc(self->ifname);
+	ASSERT_GE(self->fd, 0);
+
+	self->fd2 = tun_alloc(self->ifname);
+	ASSERT_GE(self->fd2, 0);
+}
+
+FIXTURE_TEARDOWN(tun)
+{
+	if (self->fd >= 0)
+		close(self->fd);
+	if (self->fd2 >= 0)
+		close(self->fd2);
+}
+
+TEST_F(tun, delete_detach_close) {
+	EXPECT_EQ(tun_delete(self->ifname), 0);
+	EXPECT_EQ(tun_detach(self->fd, self->ifname), -1);
+	EXPECT_EQ(errno, 22);
+}
+
+TEST_F(tun, detach_delete_close) {
+	EXPECT_EQ(tun_detach(self->fd, self->ifname), 0);
+	EXPECT_EQ(tun_delete(self->ifname), 0);
+}
+
+TEST_F(tun, detach_close_delete) {
+	EXPECT_EQ(tun_detach(self->fd, self->ifname), 0);
+	close(self->fd);
+	self->fd = -1;
+	EXPECT_EQ(tun_delete(self->ifname), 0);
+}
+
+TEST_F(tun, reattach_delete_close) {
+	EXPECT_EQ(tun_detach(self->fd, self->ifname), 0);
+	EXPECT_EQ(tun_attach(self->fd, self->ifname), 0);
+	EXPECT_EQ(tun_delete(self->ifname), 0);
+}
+
+TEST_F(tun, reattach_close_delete) {
+	EXPECT_EQ(tun_detach(self->fd, self->ifname), 0);
+	EXPECT_EQ(tun_attach(self->fd, self->ifname), 0);
+	close(self->fd);
+	self->fd = -1;
+	EXPECT_EQ(tun_delete(self->ifname), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/txring_overwrite.c b/tools/testing/selftests/net/txring_overwrite.c
new file mode 100644
index 000000000000..7d9ea039450a
--- /dev/null
+++ b/tools/testing/selftests/net/txring_overwrite.c
@@ -0,0 +1,179 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Verify that consecutive sends over packet tx_ring are mirrored
+ * with their original content intact.
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <assert.h>
+#include <error.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/filter.h>
+#include <linux/if_packet.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sched.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+const int eth_off = TPACKET_HDRLEN - sizeof(struct sockaddr_ll);
+const int cfg_frame_size = 1000;
+
+static void build_packet(void *buffer, size_t blen, char payload_char)
+{
+	struct udphdr *udph;
+	struct ethhdr *eth;
+	struct iphdr *iph;
+	size_t off = 0;
+
+	memset(buffer, 0, blen);
+
+	eth = buffer;
+	eth->h_proto = htons(ETH_P_IP);
+
+	off += sizeof(*eth);
+	iph = buffer + off;
+	iph->ttl	= 8;
+	iph->ihl	= 5;
+	iph->version	= 4;
+	iph->saddr	= htonl(INADDR_LOOPBACK);
+	iph->daddr	= htonl(INADDR_LOOPBACK + 1);
+	iph->protocol	= IPPROTO_UDP;
+	iph->tot_len	= htons(blen - off);
+	iph->check	= 0;
+
+	off += sizeof(*iph);
+	udph = buffer + off;
+	udph->dest	= htons(8000);
+	udph->source	= htons(8001);
+	udph->len	= htons(blen - off);
+	udph->check	= 0;
+
+	off += sizeof(*udph);
+	memset(buffer + off, payload_char, blen - off);
+}
+
+static int setup_rx(void)
+{
+	int fdr;
+
+	fdr = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_IP));
+	if (fdr == -1)
+		error(1, errno, "socket r");
+
+	return fdr;
+}
+
+static int setup_tx(char **ring)
+{
+	struct sockaddr_ll laddr = {};
+	struct tpacket_req req = {};
+	int fdt;
+
+	fdt = socket(PF_PACKET, SOCK_RAW, 0);
+	if (fdt == -1)
+		error(1, errno, "socket t");
+
+	laddr.sll_family = AF_PACKET;
+	laddr.sll_protocol = htons(0);
+	laddr.sll_ifindex = if_nametoindex("lo");
+	if (!laddr.sll_ifindex)
+		error(1, errno, "if_nametoindex");
+
+	if (bind(fdt, (void *)&laddr, sizeof(laddr)))
+		error(1, errno, "bind fdt");
+
+	req.tp_block_size = getpagesize();
+	req.tp_block_nr   = 1;
+	req.tp_frame_size = getpagesize();
+	req.tp_frame_nr   = 1;
+
+	if (setsockopt(fdt, SOL_PACKET, PACKET_TX_RING,
+		       (void *)&req, sizeof(req)))
+		error(1, errno, "setsockopt ring");
+
+	*ring = mmap(0, req.tp_block_size * req.tp_block_nr,
+		     PROT_READ | PROT_WRITE, MAP_SHARED, fdt, 0);
+	if (*ring == MAP_FAILED)
+		error(1, errno, "mmap");
+
+	return fdt;
+}
+
+static void send_pkt(int fdt, void *slot, char payload_char)
+{
+	struct tpacket_hdr *header = slot;
+	int ret;
+
+	while (header->tp_status != TP_STATUS_AVAILABLE)
+		usleep(1000);
+
+	build_packet(slot + eth_off, cfg_frame_size, payload_char);
+
+	header->tp_len = cfg_frame_size;
+	header->tp_status = TP_STATUS_SEND_REQUEST;
+
+	ret = sendto(fdt, NULL, 0, 0, NULL, 0);
+	if (ret == -1)
+		error(1, errno, "kick tx");
+}
+
+static int read_verify_pkt(int fdr, char payload_char)
+{
+	char buf[100];
+	int ret;
+
+	ret = read(fdr, buf, sizeof(buf));
+	if (ret != sizeof(buf))
+		error(1, errno, "read");
+
+	if (buf[60] != payload_char) {
+		printf("wrong pattern: 0x%x != 0x%x\n", buf[60], payload_char);
+		return 1;
+	}
+
+	printf("read: %c (0x%x)\n", buf[60], buf[60]);
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	const char payload_patterns[] = "ab";
+	char *ring;
+	int fdr, fdt, ret = 0;
+
+	fdr = setup_rx();
+	fdt = setup_tx(&ring);
+
+	send_pkt(fdt, ring, payload_patterns[0]);
+	send_pkt(fdt, ring, payload_patterns[1]);
+
+	ret |= read_verify_pkt(fdr, payload_patterns[0]);
+	ret |= read_verify_pkt(fdr, payload_patterns[1]);
+
+	if (close(fdt))
+		error(1, errno, "close t");
+	if (close(fdr))
+		error(1, errno, "close r");
+
+	return ret;
+}
diff --git a/tools/testing/selftests/net/txtimestamp.c b/tools/testing/selftests/net/txtimestamp.c
new file mode 100644
index 000000000000..bcc14688661d
--- /dev/null
+++ b/tools/testing/selftests/net/txtimestamp.c
@@ -0,0 +1,951 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2014 Google Inc.
+ * Author: willemb@google.com (Willem de Bruijn)
+ *
+ * Test software tx timestamping, including
+ *
+ * - SCHED, SND and ACK timestamps
+ * - RAW, UDP and TCP
+ * - IPv4 and IPv6
+ * - various packet sizes (to test GSO and TSO)
+ *
+ * Consult the command line arguments for help on running
+ * the various testcases.
+ *
+ * This test requires a dummy TCP server.
+ * A simple `nc6 [-u] -l -p $DESTPORT` will do
+ */
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <asm/types.h>
+#include <error.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <linux/errqueue.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/ipv6.h>
+#include <linux/net_tstamp.h>
+#include <netdb.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/udp.h>
+#include <netinet/tcp.h>
+#include <poll.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/epoll.h>
+#include <sys/ioctl.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#define NSEC_PER_USEC	1000L
+#define USEC_PER_SEC	1000000L
+#define NSEC_PER_SEC	1000000000LL
+
+/* command line parameters */
+static int cfg_proto = SOCK_STREAM;
+static int cfg_ipproto = IPPROTO_TCP;
+static int cfg_num_pkts = 4;
+static int do_ipv4 = 1;
+static int do_ipv6 = 1;
+static int cfg_payload_len = 10;
+static int cfg_poll_timeout = 100;
+static int cfg_delay_snd;
+static int cfg_delay_ack;
+static int cfg_delay_tolerance_usec = 500;
+static bool cfg_show_payload;
+static bool cfg_do_pktinfo;
+static bool cfg_busy_poll;
+static int cfg_sleep_usec = 50 * 1000;
+static bool cfg_loop_nodata;
+static bool cfg_use_cmsg;
+static bool cfg_use_pf_packet;
+static bool cfg_use_epoll;
+static bool cfg_epollet;
+static bool cfg_do_listen;
+static uint16_t dest_port = 9000;
+static bool cfg_print_nsec;
+static uint32_t ts_opt_id;
+static bool cfg_use_cmsg_opt_id;
+
+static struct sockaddr_in daddr;
+static struct sockaddr_in6 daddr6;
+static struct timespec ts_usr;
+
+static int saved_tskey = -1;
+static int saved_tskey_type = -1;
+
+struct timing_event {
+	int64_t min;
+	int64_t max;
+	int64_t total;
+	int count;
+};
+
+static struct timing_event usr_enq;
+static struct timing_event usr_snd;
+static struct timing_event usr_ack;
+
+static bool test_failed;
+
+static int64_t timespec_to_ns64(struct timespec *ts)
+{
+	return ts->tv_sec * NSEC_PER_SEC + ts->tv_nsec;
+}
+
+static int64_t timespec_to_us64(struct timespec *ts)
+{
+	return ts->tv_sec * USEC_PER_SEC + ts->tv_nsec / NSEC_PER_USEC;
+}
+
+static void init_timing_event(struct timing_event *te)
+{
+	te->min = INT64_MAX;
+	te->max = 0;
+	te->total = 0;
+	te->count = 0;
+}
+
+static void add_timing_event(struct timing_event *te,
+		struct timespec *t_start, struct timespec *t_end)
+{
+	int64_t ts_delta = timespec_to_ns64(t_end) - timespec_to_ns64(t_start);
+
+	te->count++;
+	if (ts_delta < te->min)
+		te->min = ts_delta;
+	if (ts_delta > te->max)
+		te->max = ts_delta;
+	te->total += ts_delta;
+}
+
+static void validate_key(int tskey, int tstype)
+{
+	int stepsize;
+
+	/* compare key for each subsequent request
+	 * must only test for one type, the first one requested
+	 */
+	if (saved_tskey == -1 || cfg_use_cmsg_opt_id)
+		saved_tskey_type = tstype;
+	else if (saved_tskey_type != tstype)
+		return;
+
+	stepsize = cfg_proto == SOCK_STREAM ? cfg_payload_len : 1;
+	stepsize = cfg_use_cmsg_opt_id ? 0 : stepsize;
+	if (tskey != saved_tskey + stepsize) {
+		fprintf(stderr, "ERROR: key %d, expected %d\n",
+				tskey, saved_tskey + stepsize);
+		test_failed = true;
+	}
+
+	saved_tskey = tskey;
+}
+
+static void validate_timestamp(struct timespec *cur, int min_delay)
+{
+	int64_t cur64, start64;
+	int max_delay;
+
+	cur64 = timespec_to_us64(cur);
+	start64 = timespec_to_us64(&ts_usr);
+	max_delay = min_delay + cfg_delay_tolerance_usec;
+
+	if (cur64 < start64 + min_delay || cur64 > start64 + max_delay) {
+		fprintf(stderr, "ERROR: %" PRId64 " us expected between %d and %d\n",
+				cur64 - start64, min_delay, max_delay);
+		if (!getenv("KSFT_MACHINE_SLOW"))
+			test_failed = true;
+	}
+}
+
+static void __print_ts_delta_formatted(int64_t ts_delta)
+{
+	if (cfg_print_nsec)
+		fprintf(stderr, "%" PRId64 " ns", ts_delta);
+	else
+		fprintf(stderr, "%" PRId64 " us", ts_delta / NSEC_PER_USEC);
+}
+
+static void __print_timestamp(const char *name, struct timespec *cur,
+			      uint32_t key, int payload_len)
+{
+	int64_t ts_delta;
+
+	if (!(cur->tv_sec | cur->tv_nsec))
+		return;
+
+	if (cfg_print_nsec)
+		fprintf(stderr, "  %s: %lu s %lu ns (seq=%u, len=%u)",
+				name, cur->tv_sec, cur->tv_nsec,
+				key, payload_len);
+	else
+		fprintf(stderr, "  %s: %lu s %lu us (seq=%u, len=%u)",
+				name, cur->tv_sec, cur->tv_nsec / NSEC_PER_USEC,
+				key, payload_len);
+
+	if (cur != &ts_usr) {
+		ts_delta = timespec_to_ns64(cur) - timespec_to_ns64(&ts_usr);
+		fprintf(stderr, "  (USR +");
+		__print_ts_delta_formatted(ts_delta);
+		fprintf(stderr, ")");
+	}
+
+	fprintf(stderr, "\n");
+}
+
+static void print_timestamp_usr(void)
+{
+	if (clock_gettime(CLOCK_REALTIME, &ts_usr))
+		error(1, errno, "clock_gettime");
+
+	__print_timestamp("  USR", &ts_usr, 0, 0);
+}
+
+static void print_timestamp(struct scm_timestamping *tss, int tstype,
+			    int tskey, int payload_len)
+{
+	const char *tsname = NULL;
+
+	validate_key(tskey, tstype);
+
+	switch (tstype) {
+	case SCM_TSTAMP_SCHED:
+		tsname = "  ENQ";
+		validate_timestamp(&tss->ts[0], 0);
+		add_timing_event(&usr_enq, &ts_usr, &tss->ts[0]);
+		break;
+	case SCM_TSTAMP_SND:
+		tsname = "  SND";
+		validate_timestamp(&tss->ts[0], cfg_delay_snd);
+		add_timing_event(&usr_snd, &ts_usr, &tss->ts[0]);
+		break;
+	case SCM_TSTAMP_ACK:
+		tsname = "  ACK";
+		validate_timestamp(&tss->ts[0], cfg_delay_ack);
+		add_timing_event(&usr_ack, &ts_usr, &tss->ts[0]);
+		break;
+	default:
+		error(1, 0, "unknown timestamp type: %u",
+		tstype);
+	}
+	__print_timestamp(tsname, &tss->ts[0], tskey, payload_len);
+}
+
+static void print_timing_event(char *name, struct timing_event *te)
+{
+	if (!te->count)
+		return;
+
+	fprintf(stderr, "    %s: count=%d", name, te->count);
+	fprintf(stderr, ", avg=");
+	__print_ts_delta_formatted((int64_t)(te->total / te->count));
+	fprintf(stderr, ", min=");
+	__print_ts_delta_formatted(te->min);
+	fprintf(stderr, ", max=");
+	__print_ts_delta_formatted(te->max);
+	fprintf(stderr, "\n");
+}
+
+/* TODO: convert to check_and_print payload once API is stable */
+static void print_payload(char *data, int len)
+{
+	int i;
+
+	if (!len)
+		return;
+
+	if (len > 70)
+		len = 70;
+
+	fprintf(stderr, "payload: ");
+	for (i = 0; i < len; i++)
+		fprintf(stderr, "%02hhx ", data[i]);
+	fprintf(stderr, "\n");
+}
+
+static void print_pktinfo(int family, int ifindex, void *saddr, void *daddr)
+{
+	char sa[INET6_ADDRSTRLEN], da[INET6_ADDRSTRLEN];
+
+	fprintf(stderr, "         pktinfo: ifindex=%u src=%s dst=%s\n",
+		ifindex,
+		saddr ? inet_ntop(family, saddr, sa, sizeof(sa)) : "unknown",
+		daddr ? inet_ntop(family, daddr, da, sizeof(da)) : "unknown");
+}
+
+static void __epoll(int epfd)
+{
+	struct epoll_event events;
+	int ret;
+
+	memset(&events, 0, sizeof(events));
+	ret = epoll_wait(epfd, &events, 1, cfg_poll_timeout);
+	if (ret != 1)
+		error(1, errno, "epoll_wait");
+}
+
+static void __poll(int fd)
+{
+	struct pollfd pollfd;
+	int ret;
+
+	memset(&pollfd, 0, sizeof(pollfd));
+	pollfd.fd = fd;
+	ret = poll(&pollfd, 1, cfg_poll_timeout);
+	if (ret != 1)
+		error(1, errno, "poll");
+}
+
+static void __recv_errmsg_cmsg(struct msghdr *msg, int payload_len)
+{
+	struct sock_extended_err *serr = NULL;
+	struct scm_timestamping *tss = NULL;
+	struct cmsghdr *cm;
+	int batch = 0;
+
+	for (cm = CMSG_FIRSTHDR(msg);
+	     cm && cm->cmsg_len;
+	     cm = CMSG_NXTHDR(msg, cm)) {
+		if (cm->cmsg_level == SOL_SOCKET &&
+		    cm->cmsg_type == SCM_TIMESTAMPING) {
+			tss = (void *) CMSG_DATA(cm);
+		} else if ((cm->cmsg_level == SOL_IP &&
+			    cm->cmsg_type == IP_RECVERR) ||
+			   (cm->cmsg_level == SOL_IPV6 &&
+			    cm->cmsg_type == IPV6_RECVERR) ||
+			   (cm->cmsg_level == SOL_PACKET &&
+			    cm->cmsg_type == PACKET_TX_TIMESTAMP)) {
+			serr = (void *) CMSG_DATA(cm);
+			if (serr->ee_errno != ENOMSG ||
+			    serr->ee_origin != SO_EE_ORIGIN_TIMESTAMPING) {
+				fprintf(stderr, "unknown ip error %d %d\n",
+						serr->ee_errno,
+						serr->ee_origin);
+				serr = NULL;
+			}
+		} else if (cm->cmsg_level == SOL_IP &&
+			   cm->cmsg_type == IP_PKTINFO) {
+			struct in_pktinfo *info = (void *) CMSG_DATA(cm);
+			print_pktinfo(AF_INET, info->ipi_ifindex,
+				      &info->ipi_spec_dst, &info->ipi_addr);
+		} else if (cm->cmsg_level == SOL_IPV6 &&
+			   cm->cmsg_type == IPV6_PKTINFO) {
+			struct in6_pktinfo *info6 = (void *) CMSG_DATA(cm);
+			print_pktinfo(AF_INET6, info6->ipi6_ifindex,
+				      NULL, &info6->ipi6_addr);
+		} else
+			fprintf(stderr, "unknown cmsg %d,%d\n",
+					cm->cmsg_level, cm->cmsg_type);
+
+		if (serr && tss) {
+			print_timestamp(tss, serr->ee_info, serr->ee_data,
+					payload_len);
+			serr = NULL;
+			tss = NULL;
+			batch++;
+		}
+	}
+
+	if (batch > 1) {
+		fprintf(stderr, "batched %d timestamps\n", batch);
+	} else if (!batch) {
+		fprintf(stderr, "Failed to report timestamps\n");
+		test_failed = true;
+	}
+}
+
+static int recv_errmsg(int fd)
+{
+	static char ctrl[1024 /* overprovision*/];
+	static struct msghdr msg;
+	struct iovec entry;
+	static char *data;
+	int ret = 0;
+
+	data = malloc(cfg_payload_len);
+	if (!data)
+		error(1, 0, "malloc");
+
+	memset(&msg, 0, sizeof(msg));
+	memset(&entry, 0, sizeof(entry));
+	memset(ctrl, 0, sizeof(ctrl));
+
+	entry.iov_base = data;
+	entry.iov_len = cfg_payload_len;
+	msg.msg_iov = &entry;
+	msg.msg_iovlen = 1;
+	msg.msg_name = NULL;
+	msg.msg_namelen = 0;
+	msg.msg_control = ctrl;
+	msg.msg_controllen = sizeof(ctrl);
+
+	ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+	if (ret == -1 && errno != EAGAIN)
+		error(1, errno, "recvmsg");
+
+	if (ret >= 0) {
+		__recv_errmsg_cmsg(&msg, ret);
+		if (cfg_show_payload)
+			print_payload(data, cfg_payload_len);
+	}
+
+	free(data);
+	return ret == -1;
+}
+
+static uint16_t get_ip_csum(const uint16_t *start, int num_words,
+			    unsigned long sum)
+{
+	int i;
+
+	for (i = 0; i < num_words; i++)
+		sum += start[i];
+
+	while (sum >> 16)
+		sum = (sum & 0xFFFF) + (sum >> 16);
+
+	return ~sum;
+}
+
+static uint16_t get_udp_csum(const struct udphdr *udph, int alen)
+{
+	unsigned long pseudo_sum, csum_len;
+	const void *csum_start = udph;
+
+	pseudo_sum = htons(IPPROTO_UDP);
+	pseudo_sum += udph->len;
+
+	/* checksum ip(v6) addresses + udp header + payload */
+	csum_start -= alen * 2;
+	csum_len = ntohs(udph->len) + alen * 2;
+
+	return get_ip_csum(csum_start, csum_len >> 1, pseudo_sum);
+}
+
+static int fill_header_ipv4(void *p)
+{
+	struct iphdr *iph = p;
+
+	memset(iph, 0, sizeof(*iph));
+
+	iph->ihl	= 5;
+	iph->version	= 4;
+	iph->ttl	= 2;
+	iph->saddr	= daddr.sin_addr.s_addr;	/* set for udp csum calc */
+	iph->daddr	= daddr.sin_addr.s_addr;
+	iph->protocol	= IPPROTO_UDP;
+
+	/* kernel writes saddr, csum, len */
+
+	return sizeof(*iph);
+}
+
+static int fill_header_ipv6(void *p)
+{
+	struct ipv6hdr *ip6h = p;
+
+	memset(ip6h, 0, sizeof(*ip6h));
+
+	ip6h->version		= 6;
+	ip6h->payload_len	= htons(sizeof(struct udphdr) + cfg_payload_len);
+	ip6h->nexthdr		= IPPROTO_UDP;
+	ip6h->hop_limit		= 64;
+
+	ip6h->saddr             = daddr6.sin6_addr;
+	ip6h->daddr		= daddr6.sin6_addr;
+
+	/* kernel does not write saddr in case of ipv6 */
+
+	return sizeof(*ip6h);
+}
+
+static void fill_header_udp(void *p, bool is_ipv4)
+{
+	struct udphdr *udph = p;
+
+	udph->source = ntohs(dest_port + 1);	/* spoof */
+	udph->dest   = ntohs(dest_port);
+	udph->len    = ntohs(sizeof(*udph) + cfg_payload_len);
+	udph->check  = 0;
+
+	udph->check  = get_udp_csum(udph, is_ipv4 ? sizeof(struct in_addr) :
+						    sizeof(struct in6_addr));
+}
+
+static void do_test(int family, unsigned int report_opt)
+{
+	char control[2 * CMSG_SPACE(sizeof(uint32_t))];
+	struct sockaddr_ll laddr;
+	unsigned int sock_opt;
+	struct cmsghdr *cmsg;
+	struct msghdr msg;
+	struct iovec iov;
+	char *buf;
+	int fd, i, val = 1, total_len, epfd = 0;
+
+	init_timing_event(&usr_enq);
+	init_timing_event(&usr_snd);
+	init_timing_event(&usr_ack);
+
+	total_len = cfg_payload_len;
+	if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
+		total_len += sizeof(struct udphdr);
+		if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
+			if (family == PF_INET)
+				total_len += sizeof(struct iphdr);
+			else
+				total_len += sizeof(struct ipv6hdr);
+		}
+		/* special case, only rawv6_sendmsg:
+		 * pass proto in sin6_port if not connected
+		 * also see ANK comment in net/ipv4/raw.c
+		 */
+		daddr6.sin6_port = htons(cfg_ipproto);
+	}
+
+	buf = malloc(total_len);
+	if (!buf)
+		error(1, 0, "malloc");
+
+	fd = socket(cfg_use_pf_packet ? PF_PACKET : family,
+		    cfg_proto, cfg_ipproto);
+	if (fd < 0)
+		error(1, errno, "socket");
+
+	if (cfg_use_epoll) {
+		struct epoll_event ev;
+
+		memset(&ev, 0, sizeof(ev));
+		ev.data.fd = fd;
+		if (cfg_epollet)
+			ev.events |= EPOLLET;
+		epfd = epoll_create(1);
+		if (epfd <= 0)
+			error(1, errno, "epoll_create");
+		if (epoll_ctl(epfd, EPOLL_CTL_ADD, fd, &ev))
+			error(1, errno, "epoll_ctl");
+	}
+
+	/* reset expected key on each new socket */
+	saved_tskey = -1;
+
+	if (cfg_proto == SOCK_STREAM) {
+		if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY,
+			       (char*) &val, sizeof(val)))
+			error(1, 0, "setsockopt no nagle");
+
+		if (family == PF_INET) {
+			if (connect(fd, (void *) &daddr, sizeof(daddr)))
+				error(1, errno, "connect ipv4");
+		} else {
+			if (connect(fd, (void *) &daddr6, sizeof(daddr6)))
+				error(1, errno, "connect ipv6");
+		}
+	}
+
+	if (cfg_do_pktinfo) {
+		if (family == AF_INET6) {
+			if (setsockopt(fd, SOL_IPV6, IPV6_RECVPKTINFO,
+				       &val, sizeof(val)))
+				error(1, errno, "setsockopt pktinfo ipv6");
+		} else {
+			if (setsockopt(fd, SOL_IP, IP_PKTINFO,
+				       &val, sizeof(val)))
+				error(1, errno, "setsockopt pktinfo ipv4");
+		}
+	}
+
+	sock_opt = SOF_TIMESTAMPING_SOFTWARE |
+		   SOF_TIMESTAMPING_OPT_CMSG |
+		   SOF_TIMESTAMPING_OPT_ID;
+
+	if (!cfg_use_cmsg)
+		sock_opt |= report_opt;
+
+	if (cfg_loop_nodata)
+		sock_opt |= SOF_TIMESTAMPING_OPT_TSONLY;
+
+	if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING,
+		       (char *) &sock_opt, sizeof(sock_opt)))
+		error(1, 0, "setsockopt timestamping");
+
+	for (i = 0; i < cfg_num_pkts; i++) {
+		memset(&msg, 0, sizeof(msg));
+		memset(buf, 'a' + i, total_len);
+
+		if (cfg_use_pf_packet || cfg_proto == SOCK_RAW) {
+			int off = 0;
+
+			if (cfg_use_pf_packet || cfg_ipproto == IPPROTO_RAW) {
+				if (family == PF_INET)
+					off = fill_header_ipv4(buf);
+				else
+					off = fill_header_ipv6(buf);
+			}
+
+			fill_header_udp(buf + off, family == PF_INET);
+		}
+
+		print_timestamp_usr();
+
+		iov.iov_base = buf;
+		iov.iov_len = total_len;
+
+		if (cfg_proto != SOCK_STREAM) {
+			if (cfg_use_pf_packet) {
+				memset(&laddr, 0, sizeof(laddr));
+
+				laddr.sll_family	= AF_PACKET;
+				laddr.sll_ifindex	= 1;
+				laddr.sll_protocol	= htons(family == AF_INET ? ETH_P_IP : ETH_P_IPV6);
+				laddr.sll_halen		= ETH_ALEN;
+
+				msg.msg_name = (void *)&laddr;
+				msg.msg_namelen = sizeof(laddr);
+			} else if (family == PF_INET) {
+				msg.msg_name = (void *)&daddr;
+				msg.msg_namelen = sizeof(daddr);
+			} else {
+				msg.msg_name = (void *)&daddr6;
+				msg.msg_namelen = sizeof(daddr6);
+			}
+		}
+
+		msg.msg_iov = &iov;
+		msg.msg_iovlen = 1;
+
+		if (cfg_use_cmsg || cfg_use_cmsg_opt_id) {
+			memset(control, 0, sizeof(control));
+
+			msg.msg_control = control;
+			msg.msg_controllen = cfg_use_cmsg * CMSG_SPACE(sizeof(uint32_t));
+			msg.msg_controllen += cfg_use_cmsg_opt_id * CMSG_SPACE(sizeof(uint32_t));
+
+			cmsg = NULL;
+			if (cfg_use_cmsg) {
+				cmsg = CMSG_FIRSTHDR(&msg);
+				cmsg->cmsg_level = SOL_SOCKET;
+				cmsg->cmsg_type = SO_TIMESTAMPING;
+				cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+
+				*((uint32_t *)CMSG_DATA(cmsg)) = report_opt;
+			}
+			if (cfg_use_cmsg_opt_id) {
+				cmsg = cmsg ? CMSG_NXTHDR(&msg, cmsg) : CMSG_FIRSTHDR(&msg);
+				cmsg->cmsg_level = SOL_SOCKET;
+				cmsg->cmsg_type = SCM_TS_OPT_ID;
+				cmsg->cmsg_len = CMSG_LEN(sizeof(uint32_t));
+
+				*((uint32_t *)CMSG_DATA(cmsg)) = ts_opt_id;
+				saved_tskey = ts_opt_id;
+			}
+
+		}
+
+		val = sendmsg(fd, &msg, 0);
+		if (val != total_len)
+			error(1, errno, "send");
+
+		/* wait for all errors to be queued, else ACKs arrive OOO */
+		if (cfg_sleep_usec)
+			usleep(cfg_sleep_usec);
+
+		if (!cfg_busy_poll) {
+			if (cfg_use_epoll)
+				__epoll(epfd);
+			else
+				__poll(fd);
+		}
+
+		while (!recv_errmsg(fd)) {}
+	}
+
+	print_timing_event("USR-ENQ", &usr_enq);
+	print_timing_event("USR-SND", &usr_snd);
+	print_timing_event("USR-ACK", &usr_ack);
+
+	if (close(fd))
+		error(1, errno, "close");
+
+	free(buf);
+	usleep(100 * NSEC_PER_USEC);
+}
+
+static void __attribute__((noreturn)) usage(const char *filepath)
+{
+	fprintf(stderr, "\nUsage: %s [options] hostname\n"
+			"\nwhere options are:\n"
+			"  -4:   only IPv4\n"
+			"  -6:   only IPv6\n"
+			"  -h:   show this message\n"
+			"  -b:   busy poll to read from error queue\n"
+			"  -c N: number of packets for each test\n"
+			"  -C:   use cmsg to set tstamp recording options\n"
+			"  -e:   use level-triggered epoll() instead of poll()\n"
+			"  -E:   use event-triggered epoll() instead of poll()\n"
+			"  -F:   poll()/epoll() waits forever for an event\n"
+			"  -I:   request PKTINFO\n"
+			"  -l N: send N bytes at a time\n"
+			"  -L    listen on hostname and port\n"
+			"  -n:   set no-payload option\n"
+			"  -N:   print timestamps and durations in nsec (instead of usec)\n"
+			"  -o N: use SCM_TS_OPT_ID control message to provide N as tskey\n"
+			"  -p N: connect to port N\n"
+			"  -P:   use PF_PACKET\n"
+			"  -r:   use raw\n"
+			"  -R:   use raw (IP_HDRINCL)\n"
+			"  -S N: usec to sleep before reading error queue\n"
+			"  -t N: tolerance (usec) for timestamp validation\n"
+			"  -u:   use udp\n"
+			"  -v:   validate SND delay (usec)\n"
+			"  -V:   validate ACK delay (usec)\n"
+			"  -x:   show payload (up to 70 bytes)\n",
+			filepath);
+	exit(1);
+}
+
+static void parse_opt(int argc, char **argv)
+{
+	int proto_count = 0;
+	int c;
+
+	while ((c = getopt(argc, argv,
+				"46bc:CeEFhIl:LnNo:p:PrRS:t:uv:V:x")) != -1) {
+		switch (c) {
+		case '4':
+			do_ipv6 = 0;
+			break;
+		case '6':
+			do_ipv4 = 0;
+			break;
+		case 'b':
+			cfg_busy_poll = true;
+			break;
+		case 'c':
+			cfg_num_pkts = strtoul(optarg, NULL, 10);
+			break;
+		case 'C':
+			cfg_use_cmsg = true;
+			break;
+		case 'e':
+			cfg_use_epoll = true;
+			break;
+		case 'E':
+			cfg_use_epoll = true;
+			cfg_epollet = true;
+		case 'F':
+			cfg_poll_timeout = -1;
+			break;
+		case 'I':
+			cfg_do_pktinfo = true;
+			break;
+		case 'l':
+			cfg_payload_len = strtoul(optarg, NULL, 10);
+			break;
+		case 'L':
+			cfg_do_listen = true;
+			break;
+		case 'n':
+			cfg_loop_nodata = true;
+			break;
+		case 'N':
+			cfg_print_nsec = true;
+			break;
+		case 'o':
+			ts_opt_id = strtoul(optarg, NULL, 10);
+			cfg_use_cmsg_opt_id = true;
+			break;
+		case 'p':
+			dest_port = strtoul(optarg, NULL, 10);
+			break;
+		case 'P':
+			proto_count++;
+			cfg_use_pf_packet = true;
+			cfg_proto = SOCK_DGRAM;
+			cfg_ipproto = 0;
+			break;
+		case 'r':
+			proto_count++;
+			cfg_proto = SOCK_RAW;
+			cfg_ipproto = IPPROTO_UDP;
+			break;
+		case 'R':
+			proto_count++;
+			cfg_proto = SOCK_RAW;
+			cfg_ipproto = IPPROTO_RAW;
+			break;
+		case 'S':
+			cfg_sleep_usec = strtoul(optarg, NULL, 10);
+			break;
+		case 't':
+			cfg_delay_tolerance_usec = strtoul(optarg, NULL, 10);
+			break;
+		case 'u':
+			proto_count++;
+			cfg_proto = SOCK_DGRAM;
+			cfg_ipproto = IPPROTO_UDP;
+			break;
+		case 'v':
+			cfg_delay_snd = strtoul(optarg, NULL, 10);
+			break;
+		case 'V':
+			cfg_delay_ack = strtoul(optarg, NULL, 10);
+			break;
+		case 'x':
+			cfg_show_payload = true;
+			break;
+		case 'h':
+		default:
+			usage(argv[0]);
+		}
+	}
+
+	if (!cfg_payload_len)
+		error(1, 0, "payload may not be nonzero");
+	if (cfg_proto != SOCK_STREAM && cfg_payload_len > 1472)
+		error(1, 0, "udp packet might exceed expected MTU");
+	if (!do_ipv4 && !do_ipv6)
+		error(1, 0, "pass -4 or -6, not both");
+	if (proto_count > 1)
+		error(1, 0, "pass -P, -r, -R or -u, not multiple");
+	if (cfg_do_pktinfo && cfg_use_pf_packet)
+		error(1, 0, "cannot ask for pktinfo over pf_packet");
+	if (cfg_busy_poll && cfg_use_epoll)
+		error(1, 0, "pass epoll or busy_poll, not both");
+	if (cfg_proto == SOCK_STREAM && cfg_use_cmsg_opt_id)
+		error(1, 0, "TCP sockets don't support SCM_TS_OPT_ID");
+
+	if (optind != argc - 1)
+		error(1, 0, "missing required hostname argument");
+}
+
+static void resolve_hostname(const char *hostname)
+{
+	struct addrinfo hints = { .ai_family = do_ipv4 ? AF_INET : AF_INET6 };
+	struct addrinfo *addrs, *cur;
+	int have_ipv4 = 0, have_ipv6 = 0;
+
+retry:
+	if (getaddrinfo(hostname, NULL, &hints, &addrs))
+		error(1, errno, "getaddrinfo");
+
+	cur = addrs;
+	while (cur && !have_ipv4 && !have_ipv6) {
+		if (!have_ipv4 && cur->ai_family == AF_INET) {
+			memcpy(&daddr, cur->ai_addr, sizeof(daddr));
+			daddr.sin_port = htons(dest_port);
+			have_ipv4 = 1;
+		}
+		else if (!have_ipv6 && cur->ai_family == AF_INET6) {
+			memcpy(&daddr6, cur->ai_addr, sizeof(daddr6));
+			daddr6.sin6_port = htons(dest_port);
+			have_ipv6 = 1;
+		}
+		cur = cur->ai_next;
+	}
+	if (addrs)
+		freeaddrinfo(addrs);
+
+	if (do_ipv6 && hints.ai_family != AF_INET6) {
+		hints.ai_family = AF_INET6;
+		goto retry;
+	}
+
+	do_ipv4 &= have_ipv4;
+	do_ipv6 &= have_ipv6;
+}
+
+static void do_listen(int family, void *addr, int alen)
+{
+	int fd, type;
+
+	type = cfg_proto == SOCK_RAW ? SOCK_DGRAM : cfg_proto;
+
+	fd = socket(family, type, 0);
+	if (fd == -1)
+		error(1, errno, "socket rx");
+
+	if (bind(fd, addr, alen))
+		error(1, errno, "bind rx");
+
+	if (type == SOCK_STREAM && listen(fd, 10))
+		error(1, errno, "listen rx");
+
+	/* leave fd open, will be closed on process exit.
+	 * this enables connect() to succeed and avoids icmp replies
+	 */
+}
+
+static void do_main(int family)
+{
+	fprintf(stderr, "family:       %s %s\n",
+			family == PF_INET ? "INET" : "INET6",
+			cfg_use_pf_packet ? "(PF_PACKET)" : "");
+
+	fprintf(stderr, "test SND\n");
+	do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE);
+
+	fprintf(stderr, "test ENQ\n");
+	do_test(family, SOF_TIMESTAMPING_TX_SCHED);
+
+	fprintf(stderr, "test ENQ + SND\n");
+	do_test(family, SOF_TIMESTAMPING_TX_SCHED |
+			SOF_TIMESTAMPING_TX_SOFTWARE);
+
+	if (cfg_proto == SOCK_STREAM) {
+		fprintf(stderr, "\ntest ACK\n");
+		do_test(family, SOF_TIMESTAMPING_TX_ACK);
+
+		fprintf(stderr, "\ntest SND + ACK\n");
+		do_test(family, SOF_TIMESTAMPING_TX_SOFTWARE |
+				SOF_TIMESTAMPING_TX_ACK);
+
+		fprintf(stderr, "\ntest ENQ + SND + ACK\n");
+		do_test(family, SOF_TIMESTAMPING_TX_SCHED |
+				SOF_TIMESTAMPING_TX_SOFTWARE |
+				SOF_TIMESTAMPING_TX_ACK);
+	}
+}
+
+const char *sock_names[] = { NULL, "TCP", "UDP", "RAW" };
+
+int main(int argc, char **argv)
+{
+	if (argc == 1)
+		usage(argv[0]);
+
+	parse_opt(argc, argv);
+	resolve_hostname(argv[argc - 1]);
+
+	fprintf(stderr, "protocol:     %s\n", sock_names[cfg_proto]);
+	fprintf(stderr, "payload:      %u\n", cfg_payload_len);
+	fprintf(stderr, "server port:  %u\n", dest_port);
+	fprintf(stderr, "\n");
+
+	if (do_ipv4) {
+		if (cfg_do_listen)
+			do_listen(PF_INET, &daddr, sizeof(daddr));
+		do_main(PF_INET);
+	}
+
+	if (do_ipv6) {
+		if (cfg_do_listen)
+			do_listen(PF_INET6, &daddr6, sizeof(daddr6));
+		do_main(PF_INET6);
+	}
+
+	return test_failed;
+}
diff --git a/tools/testing/selftests/net/txtimestamp.sh b/tools/testing/selftests/net/txtimestamp.sh
new file mode 100755
index 000000000000..fe4649bb8786
--- /dev/null
+++ b/tools/testing/selftests/net/txtimestamp.sh
@@ -0,0 +1,86 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Send packets with transmit timestamps over loopback with netem
+# Verify that timestamps correspond to netem delay
+
+set -e
+
+setup() {
+	# set 1ms delay on lo egress
+	tc qdisc add dev lo root netem delay 10ms
+
+	# set 2ms delay on ifb0 egress
+	modprobe ifb
+	ip link add ifb_netem0 type ifb
+	ip link set dev ifb_netem0 up
+	tc qdisc add dev ifb_netem0 root netem delay 20ms
+
+	# redirect lo ingress through ifb0 egress
+	tc qdisc add dev lo handle ffff: ingress
+	tc filter add dev lo parent ffff: \
+		u32 match mark 0 0xffff \
+		action mirred egress redirect dev ifb_netem0
+}
+
+run_test_v4v6() {
+	# SND will be delayed 10ms
+	# ACK will be delayed 60ms: 10 + 20 ms round-trip
+	# allow +/- tolerance of 8ms
+	# wait for ACK to be queued
+	local -r args="$@ -v 10000 -V 60000 -t 8000 -S 80000"
+
+	./txtimestamp ${args} -4 -L 127.0.0.1
+	./txtimestamp ${args} -6 -L ::1
+}
+
+run_test_tcpudpraw() {
+	local -r args=$@
+
+	run_test_v4v6 ${args}		  # tcp
+	run_test_v4v6 ${args} -u	  # udp
+	run_test_v4v6 ${args} -u -o 42	  # udp with fixed tskey
+	run_test_v4v6 ${args} -r	  # raw
+	run_test_v4v6 ${args} -r -o 42	  # raw
+	run_test_v4v6 ${args} -R	  # raw (IPPROTO_RAW)
+	run_test_v4v6 ${args} -P	  # pf_packet
+}
+
+run_test_all() {
+	setup
+	run_test_tcpudpraw		# setsockopt
+	run_test_tcpudpraw -C		# cmsg
+	run_test_tcpudpraw -n		# timestamp w/o data
+	echo "OK. All tests passed"
+}
+
+run_test_one() {
+	setup
+	./txtimestamp $@
+}
+
+usage() {
+	echo "Usage: $0 [ -r | --run ] <txtimestamp args> | [ -h | --help ]"
+	echo "  (no args)  Run all tests"
+	echo "  -r|--run  Run an individual test with arguments"
+	echo "  -h|--help Help"
+}
+
+main() {
+	if [[ $# -eq 0 ]]; then
+		run_test_all
+	else
+		if [[ "$1" = "-r" || "$1" == "--run" ]]; then
+			shift
+			run_test_one $@
+		else
+			usage
+		fi
+	fi
+}
+
+if [[ -z "$(ip netns identify)" ]]; then
+	./in_netns.sh $0 $@
+else
+	main $@
+fi
diff --git a/tools/testing/selftests/net/udpgro.sh b/tools/testing/selftests/net/udpgro.sh
new file mode 100755
index 000000000000..b17e032a6d75
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro.sh
@@ -0,0 +1,220 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgro functional tests.
+
+source lib.sh
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+# set global exit status, but never reset nonzero one.
+check_err()
+{
+	if [ $ret -eq 0 ]; then
+		ret=$1
+	fi
+}
+
+cleanup() {
+	local -r jobs="$(jobs -p)"
+	local -r ns="$(ip netns list|grep $PEER_NS)"
+
+	[ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
+	[ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+trap cleanup EXIT
+
+cfg_veth() {
+	ip netns add "${PEER_NS}"
+	ip -netns "${PEER_NS}" link set lo up
+	ip link add type veth
+	ip link set dev veth0 up
+	ip addr add dev veth0 192.168.1.2/24
+	ip addr add dev veth0 2001:db8::2/64 nodad
+
+	ip link set dev veth1 netns "${PEER_NS}"
+	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
+	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
+	ip -netns "${PEER_NS}" link set dev veth1 up
+	ip netns exec "${PEER_NS}" ethtool -K veth1 gro on
+}
+
+run_one() {
+	# use 'rx' as separator between sender args and receiver args
+	local -r all="$@"
+	local -r tx_args=${all%rx*}
+	local -r rx_args=${all#*rx}
+	local ret=0
+
+	cfg_veth
+
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${rx_args} &
+	local PID1=$!
+
+	wait_local_port_listen ${PEER_NS} 8000 udp
+	./udpgso_bench_tx ${tx_args}
+	check_err $?
+	wait ${PID1}
+	check_err $?
+	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
+	return $ret
+}
+
+run_test() {
+	local -r args=$@
+
+	printf " %-40s" "$1"
+	./in_netns.sh $0 __subprocess $2 rx -G -r $3
+}
+
+run_one_nat() {
+	# use 'rx' as separator between sender args and receiver args
+	local addr1 addr2 pid family="" ipt_cmd=ip6tables
+	local -r all="$@"
+	local -r tx_args=${all%rx*}
+	local -r rx_args=${all#*rx}
+	local ret=0
+
+	if [[ ${tx_args} = *-4* ]]; then
+		ipt_cmd=iptables
+		family=-4
+		addr1=192.168.1.1
+		addr2=192.168.1.3/24
+	else
+		addr1=2001:db8::1
+		addr2="2001:db8::3/64 nodad"
+	fi
+
+	cfg_veth
+	ip -netns "${PEER_NS}" addr add dev veth1 ${addr2}
+
+	# fool the GRO engine changing the destination address ...
+	ip netns exec "${PEER_NS}" $ipt_cmd -t nat -I PREROUTING -d ${addr1} -j DNAT --to-destination ${addr2%/*}
+
+	# ... so that GRO will match the UDP_GRO enabled socket, but packets
+	# will land on the 'plain' one
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -G ${family} -b ${addr1} -n 0 &
+	local PID1=$!
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${family} -b ${addr2%/*} ${rx_args} &
+	local PID2=$!
+
+	wait_local_port_listen "${PEER_NS}" 8000 udp
+	./udpgso_bench_tx ${tx_args}
+	check_err $?
+	kill -INT ${PID1}
+	wait ${PID2}
+	check_err $?
+	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
+	return $ret
+}
+
+run_one_2sock() {
+	# use 'rx' as separator between sender args and receiver args
+	local -r all="$@"
+	local -r tx_args=${all%rx*}
+	local -r rx_args=${all#*rx}
+	local ret=0
+
+	cfg_veth
+
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 1000 -R 100 ${rx_args} -p 12345 &
+	local PID1=$!
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -C 2000 -R 100 ${rx_args} &
+	local PID2=$!
+
+	wait_local_port_listen "${PEER_NS}" 12345 udp
+	./udpgso_bench_tx ${tx_args} -p 12345
+	check_err $?
+	wait_local_port_listen "${PEER_NS}" 8000 udp
+	./udpgso_bench_tx ${tx_args}
+	check_err $?
+	wait ${PID1}
+	check_err $?
+	wait ${PID2}
+	check_err $?
+	[ "$ret" -eq 0 ] && echo "ok" || echo "failed"
+	return $ret
+}
+
+run_nat_test() {
+	local -r args=$@
+
+	printf " %-40s" "$1"
+	./in_netns.sh $0 __subprocess_nat $2 rx -r $3
+}
+
+run_2sock_test() {
+	local -r args=$@
+
+	printf " %-40s" "$1"
+	./in_netns.sh $0 __subprocess_2sock $2 rx -G -r $3
+}
+
+run_all() {
+	local -r core_args="-l 4"
+	local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
+	local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
+	ret=0
+
+	echo "ipv4"
+	run_test "no GRO" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400"
+	check_err $?
+
+	# explicitly check we are not receiving UDP_SEGMENT cmsg (-S -1)
+	# when GRO does not take place
+	run_test "no GRO chk cmsg" "${ipv4_args} -M 10 -s 1400" "-4 -n 10 -l 1400 -S -1"
+	check_err $?
+
+	# the GSO packets are aggregated because:
+	# * veth schedule napi after each xmit
+	# * segmentation happens in BH context, veth napi poll is delayed after
+	#   the transmission of the last segment
+	run_test "GRO" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720"
+	check_err $?
+	run_test "GRO chk cmsg" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
+	check_err $?
+	run_test "GRO with custom segment size" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720"
+	check_err $?
+	run_test "GRO with custom segment size cmsg" "${ipv4_args} -M 1 -s 14720 -S 500 " "-4 -n 1 -l 14720 -S 500"
+	check_err $?
+
+	run_nat_test "bad GRO lookup" "${ipv4_args} -M 1 -s 14720 -S 0" "-n 10 -l 1472"
+	check_err $?
+	run_2sock_test "multiple GRO socks" "${ipv4_args} -M 1 -s 14720 -S 0 " "-4 -n 1 -l 14720 -S 1472"
+	check_err $?
+
+	echo "ipv6"
+	run_test "no GRO" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400"
+	check_err $?
+	run_test "no GRO chk cmsg" "${ipv6_args} -M 10 -s 1400" "-n 10 -l 1400 -S -1"
+	check_err $?
+	run_test "GRO" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520"
+	check_err $?
+	run_test "GRO chk cmsg" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 1 -l 14520 -S 1452"
+	check_err $?
+	run_test "GRO with custom segment size" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520"
+	check_err $?
+	run_test "GRO with custom segment size cmsg" "${ipv6_args} -M 1 -s 14520 -S 500" "-n 1 -l 14520 -S 500"
+	check_err $?
+
+	run_nat_test "bad GRO lookup" "${ipv6_args} -M 1 -s 14520 -S 0" "-n 10 -l 1452"
+	check_err $?
+	run_2sock_test "multiple GRO socks" "${ipv6_args} -M 1 -s 14520 -S 0 " "-n 1 -l 14520 -S 1452"
+	check_err $?
+	return $ret
+}
+
+if [[ $# -eq 0 ]]; then
+	run_all
+elif [[ $1 == "__subprocess" ]]; then
+	shift
+	run_one $@
+elif [[ $1 == "__subprocess_nat" ]]; then
+	shift
+	run_one_nat $@
+elif [[ $1 == "__subprocess_2sock" ]]; then
+	shift
+	run_one_2sock $@
+fi
+
+exit $?
diff --git a/tools/testing/selftests/net/udpgro_bench.sh b/tools/testing/selftests/net/udpgro_bench.sh
new file mode 100755
index 000000000000..54fa4821bc5e
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro_bench.sh
@@ -0,0 +1,98 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgro benchmarks
+
+source lib.sh
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+BPF_FILE="lib/xdp_dummy.bpf.o"
+
+cleanup() {
+	local -r jobs="$(jobs -p)"
+	local -r ns="$(ip netns list|grep $PEER_NS)"
+
+	[ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null
+	[ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+trap cleanup EXIT
+
+run_one() {
+	# use 'rx' as separator between sender args and receiver args
+	local -r all="$@"
+	local -r tx_args=${all%rx*}
+	local rx_args=${all#*rx}
+
+	[[ "${tx_args}" == *"-4"* ]] && rx_args="${rx_args} -4"
+
+	ip netns add "${PEER_NS}"
+	ip -netns "${PEER_NS}" link set lo up
+	ip link add type veth
+	ip link set dev veth0 up
+	ip addr add dev veth0 192.168.1.2/24
+	ip addr add dev veth0 2001:db8::2/64 nodad
+
+	ip link set dev veth1 netns "${PEER_NS}"
+	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
+	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
+	ip -netns "${PEER_NS}" link set dev veth1 up
+
+	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx -t ${rx_args} -r &
+
+	wait_local_port_listen "${PEER_NS}" 8000 udp
+	./udpgso_bench_tx ${tx_args}
+}
+
+run_in_netns() {
+	local -r args=$@
+
+	./in_netns.sh $0 __subprocess ${args}
+}
+
+run_udp() {
+	local -r args=$@
+
+	echo "udp gso - over veth touching data"
+	run_in_netns ${args} -S 0 rx
+
+	echo "udp gso and gro - over veth touching data"
+	run_in_netns ${args} -S 0 rx -G
+}
+
+run_tcp() {
+	local -r args=$@
+
+	echo "tcp - over veth touching data"
+	run_in_netns ${args} -t rx
+}
+
+run_all() {
+	local -r core_args="-l 4"
+	local -r ipv4_args="${core_args} -4 -D 192.168.1.1"
+	local -r ipv6_args="${core_args} -6 -D 2001:db8::1"
+
+	echo "ipv4"
+	run_tcp "${ipv4_args}"
+	run_udp "${ipv4_args}"
+
+	echo "ipv6"
+	run_tcp "${ipv4_args}"
+	run_udp "${ipv6_args}"
+}
+
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Run 'make' first"
+	exit -1
+fi
+
+if [[ $# -eq 0 ]]; then
+	run_all
+elif [[ $1 == "__subprocess" ]]; then
+	shift
+	run_one $@
+else
+	run_in_netns $@
+fi
diff --git a/tools/testing/selftests/net/udpgro_frglist.sh b/tools/testing/selftests/net/udpgro_frglist.sh
new file mode 100755
index 000000000000..9a2cfec1153e
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro_frglist.sh
@@ -0,0 +1,104 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgro benchmarks
+
+source lib.sh
+
+readonly PEER_NS="ns-peer-$(mktemp -u XXXXXX)"
+
+BPF_FILE="lib/xdp_dummy.bpf.o"
+
+cleanup() {
+	local -r jobs="$(jobs -p)"
+	local -r ns="$(ip netns list|grep $PEER_NS)"
+
+	[ -n "${jobs}" ] && kill -INT ${jobs} 2>/dev/null
+	[ -n "$ns" ] && ip netns del $ns 2>/dev/null
+}
+trap cleanup EXIT
+
+run_one() {
+	# use 'rx' as separator between sender args and receiver args
+	local -r all="$@"
+	local -r tx_args=${all%rx*}
+	local rx_args=${all#*rx}
+
+
+
+	ip netns add "${PEER_NS}"
+	ip -netns "${PEER_NS}" link set lo up
+	ip link add type veth
+	ip link set dev veth0 up
+	ip addr add dev veth0 192.168.1.2/24
+	ip addr add dev veth0 2001:db8::2/64 nodad
+
+	ip link set dev veth1 netns "${PEER_NS}"
+	ip -netns "${PEER_NS}" addr add dev veth1 192.168.1.1/24
+	ip -netns "${PEER_NS}" addr add dev veth1 2001:db8::1/64 nodad
+	ip -netns "${PEER_NS}" link set dev veth1 up
+	ip netns exec "${PEER_NS}" ethtool -K veth1 rx-gro-list on
+
+
+	ip -n "${PEER_NS}" link set veth1 xdp object ${BPF_FILE} section xdp
+	tc -n "${PEER_NS}" qdisc add dev veth1 clsact
+	tc -n "${PEER_NS}" filter add dev veth1 ingress prio 4 protocol ipv6 bpf object-file nat6to4.bpf.o section schedcls/ingress6/nat_6  direct-action
+	tc -n "${PEER_NS}" filter add dev veth1 egress prio 4 protocol ip bpf object-file nat6to4.bpf.o section schedcls/egress4/snat4 direct-action
+        echo ${rx_args}
+	ip netns exec "${PEER_NS}" ./udpgso_bench_rx ${rx_args} -r &
+
+	wait_local_port_listen "${PEER_NS}" 8000 udp
+	./udpgso_bench_tx ${tx_args}
+}
+
+run_in_netns() {
+	local -r args=$@
+  echo ${args}
+	./in_netns.sh $0 __subprocess ${args}
+}
+
+run_udp() {
+	local -r args=$@
+
+	echo "udp gso - over veth touching data"
+	run_in_netns ${args} -u -S 0 rx -4 -v
+
+	echo "udp gso and gro - over veth touching data"
+	run_in_netns ${args} -S 0 rx -4 -G
+}
+
+run_tcp() {
+	local -r args=$@
+
+	echo "tcp - over veth touching data"
+	run_in_netns ${args} -t rx -4 -t
+}
+
+run_all() {
+	local -r core_args="-l 4"
+	local -r ipv4_args="${core_args} -4  -D 192.168.1.1"
+	local -r ipv6_args="${core_args} -6  -D 2001:db8::1"
+
+	echo "ipv6"
+	run_tcp "${ipv6_args}"
+	run_udp "${ipv6_args}"
+}
+
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Run 'make' first"
+	exit -1
+fi
+
+if [ ! -f nat6to4.bpf.o ]; then
+	echo "Missing nat6to4 helper. Run 'make' first"
+	exit -1
+fi
+
+if [[ $# -eq 0 ]]; then
+	run_all
+elif [[ $1 == "__subprocess" ]]; then
+	shift
+	run_one $@
+else
+	run_in_netns $@
+fi
diff --git a/tools/testing/selftests/net/udpgro_fwd.sh b/tools/testing/selftests/net/udpgro_fwd.sh
new file mode 100755
index 000000000000..a39fdc4aa2ff
--- /dev/null
+++ b/tools/testing/selftests/net/udpgro_fwd.sh
@@ -0,0 +1,265 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+BPF_FILE="lib/xdp_dummy.bpf.o"
+readonly BASE="ns-$(mktemp -u XXXXXX)"
+readonly SRC=2
+readonly DST=1
+readonly DST_NAT=100
+readonly NS_SRC=$BASE$SRC
+readonly NS_DST=$BASE$DST
+
+# "baremetal" network used for raw UDP traffic
+readonly BM_NET_V4=192.168.1.
+readonly BM_NET_V6=2001:db8::
+
+# "overlay" network used for UDP over UDP tunnel traffic
+readonly OL_NET_V4=172.16.1.
+readonly OL_NET_V6=2001:db8:1::
+readonly NPROCS=`nproc`
+
+cleanup() {
+	local ns
+	local -r jobs="$(jobs -p)"
+	[ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
+
+	for ns in $NS_SRC $NS_DST; do
+		ip netns del $ns 2>/dev/null
+	done
+}
+
+trap cleanup EXIT
+
+create_ns() {
+	local net
+	local ns
+
+	for ns in $NS_SRC $NS_DST; do
+		ip netns add $ns
+		ip -n $ns link set dev lo up
+
+		# disable route solicitations to decrease 'noise' traffic
+		ip netns exec $ns sysctl -qw net.ipv6.conf.default.router_solicitations=0
+		ip netns exec $ns sysctl -qw net.ipv6.conf.all.router_solicitations=0
+	done
+
+	ip link add name veth$SRC type veth peer name veth$DST
+
+	for ns in $SRC $DST; do
+		ip link set dev veth$ns netns $BASE$ns
+		ip -n $BASE$ns link set dev veth$ns up
+		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
+		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
+	done
+	ip -n $NS_DST link set veth$DST xdp object ${BPF_FILE} section xdp 2>/dev/null
+}
+
+create_vxlan_endpoint() {
+	local -r netns=$1
+	local -r bm_dev=$2
+	local -r bm_rem_addr=$3
+	local -r vxlan_dev=$4
+	local -r vxlan_id=$5
+	local -r vxlan_port=4789
+
+	ip -n $netns link set dev $bm_dev up
+	ip -n $netns link add dev $vxlan_dev type vxlan id $vxlan_id \
+				dstport $vxlan_port remote $bm_rem_addr
+	ip -n $netns link set dev $vxlan_dev up
+}
+
+create_vxlan_pair() {
+	local ns
+
+	create_ns
+
+	for ns in $SRC $DST; do
+		# note that 3 - $SRC == $DST and 3 - $DST == $SRC
+		create_vxlan_endpoint $BASE$ns veth$ns $BM_NET_V4$((3 - $ns)) vxlan$ns 4
+		ip -n $BASE$ns addr add dev vxlan$ns $OL_NET_V4$ns/24
+	done
+	for ns in $SRC $DST; do
+		create_vxlan_endpoint $BASE$ns veth$ns $BM_NET_V6$((3 - $ns)) vxlan6$ns 6
+		ip -n $BASE$ns addr add dev vxlan6$ns $OL_NET_V6$ns/24 nodad
+	done
+
+	# preload neighbur cache, do avoid some noisy traffic
+	local addr_dst=$(ip -j -n $BASE$DST link show dev vxlan6$DST  |jq -r '.[]["address"]')
+	local addr_src=$(ip -j -n $BASE$SRC link show dev vxlan6$SRC  |jq -r '.[]["address"]')
+	ip -n $BASE$DST neigh add dev vxlan6$DST lladdr $addr_src $OL_NET_V6$SRC
+	ip -n $BASE$SRC neigh add dev vxlan6$SRC lladdr $addr_dst $OL_NET_V6$DST
+}
+
+is_ipv6() {
+	if [[ $1 =~ .*:.* ]]; then
+		return 0
+	fi
+	return 1
+}
+
+run_test() {
+	local -r msg=$1
+	local -r dst=$2
+	local -r pkts=$3
+	local -r vxpkts=$4
+	local bind=$5
+	local rx_args=""
+	local rx_family="-4"
+	local family=-4
+	local filter=IpInReceives
+	local ipt=iptables
+
+	printf "%-40s" "$msg"
+
+	if is_ipv6 $dst; then
+		# rx program does not support '-6' and implies ipv6 usage by default
+		rx_family=""
+		family=-6
+		filter=Ip6InReceives
+		ipt=ip6tables
+	fi
+
+	rx_args="$rx_family"
+	[ -n "$bind" ] && rx_args="$rx_args -b $bind"
+
+	# send a single GSO packet, segmented in 10 UDP frames.
+	# Always expect 10 UDP frames on RX side as rx socket does
+	# not enable GRO
+	ip netns exec $NS_DST $ipt -A INPUT -p udp --dport 4789
+	ip netns exec $NS_DST $ipt -A INPUT -p udp --dport 8000
+	ip netns exec $NS_DST ./udpgso_bench_rx -C 2000 -R 100 -n 10 -l 1300 $rx_args &
+	local spid=$!
+	wait_local_port_listen "$NS_DST" 8000 udp
+	ip netns exec $NS_SRC ./udpgso_bench_tx $family -M 1 -s 13000 -S 1300 -D $dst
+	local retc=$?
+	wait $spid
+	local rets=$?
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
+		echo " fail client exit code $retc, server $rets"
+		ret=1
+		return
+	fi
+
+	local rcv=`ip netns exec $NS_DST $ipt"-save" -c | grep 'dport 8000' | \
+							  sed -e 's/\[//' -e 's/:.*//'`
+	if [ $rcv != $pkts ]; then
+		echo " fail - received $rcv packets, expected $pkts"
+		ret=1
+		return
+	fi
+
+	local vxrcv=`ip netns exec $NS_DST $ipt"-save" -c | grep 'dport 4789' | \
+							    sed -e 's/\[//' -e 's/:.*//'`
+
+	# upper net can generate a little noise, allow some tolerance
+	if [ $vxrcv -lt $vxpkts -o $vxrcv -gt $((vxpkts + 3)) ]; then
+		echo " fail - received $vxrcv vxlan packets, expected $vxpkts"
+		ret=1
+		return
+	fi
+	echo " ok"
+}
+
+run_bench() {
+	local -r msg=$1
+	local -r dst=$2
+	local family=-4
+
+	printf "%-40s" "$msg"
+	if [ $NPROCS -lt 2 ]; then
+		echo " skip - needed 2 CPUs found $NPROCS"
+		return
+	fi
+
+	is_ipv6 $dst && family=-6
+
+	# bind the sender and the receiver to different CPUs to try
+	# get reproducible results
+	ip netns exec $NS_DST bash -c "echo 2 > /sys/class/net/veth$DST/queues/rx-0/rps_cpus"
+	ip netns exec $NS_DST taskset 0x2 ./udpgso_bench_rx -C 2000 -R 100  &
+	local spid=$!
+	wait_local_port_listen "$NS_DST" 8000 udp
+	ip netns exec $NS_SRC taskset 0x1 ./udpgso_bench_tx $family -l 3 -S 1300 -D $dst
+	local retc=$?
+	wait $spid
+	local rets=$?
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
+		echo " fail client exit code $retc, server $rets"
+		ret=1
+		return
+	fi
+}
+
+for family in 4 6; do
+	BM_NET=$BM_NET_V4
+	OL_NET=$OL_NET_V4
+	IPT=iptables
+	SUFFIX=24
+	VXDEV=vxlan
+	PING=ping
+
+	if [ $family = 6 ]; then
+		BM_NET=$BM_NET_V6
+		OL_NET=$OL_NET_V6
+		SUFFIX="64 nodad"
+		VXDEV=vxlan6
+		IPT=ip6tables
+		# Use ping6 on systems where ping doesn't handle IPv6
+		ping -w 1 -c 1 ::1 > /dev/null 2>&1 || PING="ping6"
+	fi
+
+	echo "IPv$family"
+
+	create_ns
+	run_test "No GRO" $BM_NET$DST 10 0
+	cleanup
+
+	create_ns
+	ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+	ip netns exec $NS_DST ethtool -K veth$DST rx-gro-list on
+	run_test "GRO frag list" $BM_NET$DST 1 0
+	cleanup
+
+	# UDP GRO fwd skips aggregation when find an udp socket with the GRO option
+	# if there is an UDP tunnel in the running system, such lookup happen
+	# take place.
+	# use NAT to circumvent GRO FWD check
+	create_ns
+	ip -n $NS_DST addr add dev veth$DST $BM_NET$DST_NAT/$SUFFIX
+	ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+	ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+	ip netns exec $NS_DST $IPT -t nat -I PREROUTING -d $BM_NET$DST_NAT \
+					-j DNAT --to-destination $BM_NET$DST
+	run_test "GRO fwd" $BM_NET$DST_NAT 1 0 $BM_NET$DST
+	cleanup
+
+	create_ns
+	run_bench "UDP fwd perf" $BM_NET$DST
+	ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+	run_bench "UDP GRO fwd perf" $BM_NET$DST
+	cleanup
+
+	create_vxlan_pair
+	ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+	ip netns exec $NS_DST ethtool -K veth$DST rx-gro-list on
+	run_test "GRO frag list over UDP tunnel" $OL_NET$DST 10 10
+	cleanup
+
+	# use NAT to circumvent GRO FWD check
+	create_vxlan_pair
+	ip -n $NS_DST addr add dev $VXDEV$DST $OL_NET$DST_NAT/$SUFFIX
+	ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+	ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+	ip netns exec $NS_DST $IPT -t nat -I PREROUTING -d $OL_NET$DST_NAT \
+					-j DNAT --to-destination $OL_NET$DST
+
+	# load arp cache before running the test to reduce the amount of
+	# stray traffic on top of the UDP tunnel
+	ip netns exec $NS_SRC $PING -q -c 1 $OL_NET$DST_NAT >/dev/null
+	run_test "GRO fwd over UDP tunnel" $OL_NET$DST_NAT 10 10 $OL_NET$DST
+	cleanup
+done
+
+exit $ret
diff --git a/tools/testing/selftests/net/udpgso.c b/tools/testing/selftests/net/udpgso.c
new file mode 100644
index 000000000000..36ff28af4b19
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso.c
@@ -0,0 +1,625 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <stddef.h>
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <net/if.h>
+#include <linux/in.h>
+#include <linux/netlink.h>
+#include <linux/rtnetlink.h>
+#include <netinet/if_ether.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#ifndef ETH_MAX_MTU
+#define ETH_MAX_MTU	0xFFFFU
+#endif
+
+#ifndef UDP_SEGMENT
+#define UDP_SEGMENT		103
+#endif
+
+#ifndef UDP_MAX_SEGMENTS
+#define UDP_MAX_SEGMENTS	(1 << 7UL)
+#endif
+
+#define CONST_MTU_TEST	1500
+
+#define CONST_HDRLEN_V4		(sizeof(struct iphdr) + sizeof(struct udphdr))
+#define CONST_HDRLEN_V6		(sizeof(struct ip6_hdr) + sizeof(struct udphdr))
+
+#define CONST_MSS_V4		(CONST_MTU_TEST - CONST_HDRLEN_V4)
+#define CONST_MSS_V6		(CONST_MTU_TEST - CONST_HDRLEN_V6)
+
+#define CONST_MAX_SEGS_V4	(ETH_MAX_MTU / CONST_MSS_V4)
+#define CONST_MAX_SEGS_V6	(ETH_MAX_MTU / CONST_MSS_V6)
+
+static bool		cfg_do_ipv4;
+static bool		cfg_do_ipv6;
+static bool		cfg_do_connected;
+static bool		cfg_do_connectionless;
+static bool		cfg_do_msgmore;
+static bool		cfg_do_recv = true;
+static bool		cfg_do_setsockopt;
+static int		cfg_specific_test_id = -1;
+
+static unsigned short	cfg_port = 9000;
+
+static char buf[ETH_MAX_MTU];
+
+struct testcase {
+	int tlen;		/* send() buffer size, may exceed mss */
+	bool tfail;		/* send() call is expected to fail */
+	int gso_len;		/* mss after applying gso */
+	int r_num_mss;		/* recv(): number of calls of full mss */
+	int r_len_last;		/* recv(): size of last non-mss dgram, if any */
+	bool v6_ext_hdr;	/* send() dgrams with IPv6 extension headers */
+};
+
+const struct in6_addr addr6 = {
+	{ { 0xfd, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 } }, /* fd00::1 */
+};
+
+const struct in_addr addr4 = {
+	__constant_htonl(0x0a000001), /* 10.0.0.1 */
+};
+
+static const char ipv6_hopopts_pad1[8] = { 0 };
+
+struct testcase testcases_v4[] = {
+	{
+		/* no GSO: send a single byte */
+		.tlen = 1,
+		.r_len_last = 1,
+	},
+	{
+		/* no GSO: send a single MSS */
+		.tlen = CONST_MSS_V4,
+		.r_num_mss = 1,
+	},
+	{
+		/* no GSO: send a single MSS + 1B: fail */
+		.tlen = CONST_MSS_V4 + 1,
+		.tfail = true,
+	},
+	{
+		/* send a single MSS: will fall back to no GSO */
+		.tlen = CONST_MSS_V4,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = 1,
+	},
+	{
+		/* datalen <= MSS < gso_len: will fall back to no GSO */
+		.tlen = CONST_MSS_V4,
+		.gso_len = CONST_MSS_V4 + 1,
+		.r_num_mss = 0,
+		.r_len_last = CONST_MSS_V4,
+	},
+	{
+		/* MSS < datalen < gso_len: fail */
+		.tlen = CONST_MSS_V4 + 1,
+		.gso_len = CONST_MSS_V4 + 2,
+		.tfail = true,
+	},
+	{
+		/* send a single MSS + 1B */
+		.tlen = CONST_MSS_V4 + 1,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = 1,
+		.r_len_last = 1,
+	},
+	{
+		/* send exactly 2 MSS */
+		.tlen = CONST_MSS_V4 * 2,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = 2,
+	},
+	{
+		/* send 2 MSS + 1B */
+		.tlen = (CONST_MSS_V4 * 2) + 1,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = 2,
+		.r_len_last = 1,
+	},
+	{
+		/* send MAX segs */
+		.tlen = (ETH_MAX_MTU / CONST_MSS_V4) * CONST_MSS_V4,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = (ETH_MAX_MTU / CONST_MSS_V4),
+	},
+
+	{
+		/* send MAX bytes */
+		.tlen = ETH_MAX_MTU - CONST_HDRLEN_V4,
+		.gso_len = CONST_MSS_V4,
+		.r_num_mss = CONST_MAX_SEGS_V4,
+		.r_len_last = ETH_MAX_MTU - CONST_HDRLEN_V4 -
+			      (CONST_MAX_SEGS_V4 * CONST_MSS_V4),
+	},
+	{
+		/* send MAX + 1: fail */
+		.tlen = ETH_MAX_MTU - CONST_HDRLEN_V4 + 1,
+		.gso_len = CONST_MSS_V4,
+		.tfail = true,
+	},
+	{
+		/* send a single 1B MSS: will fall back to no GSO */
+		.tlen = 1,
+		.gso_len = 1,
+		.r_num_mss = 1,
+	},
+	{
+		/* send 2 1B segments */
+		.tlen = 2,
+		.gso_len = 1,
+		.r_num_mss = 2,
+	},
+	{
+		/* send 2B + 2B + 1B segments */
+		.tlen = 5,
+		.gso_len = 2,
+		.r_num_mss = 2,
+		.r_len_last = 1,
+	},
+	{
+		/* send max number of min sized segments */
+		.tlen = UDP_MAX_SEGMENTS,
+		.gso_len = 1,
+		.r_num_mss = UDP_MAX_SEGMENTS,
+	},
+	{
+		/* send max number + 1 of min sized segments: fail */
+		.tlen = UDP_MAX_SEGMENTS + 1,
+		.gso_len = 1,
+		.tfail = true,
+	},
+	{
+		/* EOL */
+	}
+};
+
+#ifndef IP6_MAX_MTU
+#define IP6_MAX_MTU	(ETH_MAX_MTU + sizeof(struct ip6_hdr))
+#endif
+
+struct testcase testcases_v6[] = {
+	{
+		/* no GSO: send a single byte */
+		.tlen = 1,
+		.r_len_last = 1,
+	},
+	{
+		/* no GSO: send a single MSS */
+		.tlen = CONST_MSS_V6,
+		.r_num_mss = 1,
+	},
+	{
+		/* no GSO: send a single MSS + 1B: fail */
+		.tlen = CONST_MSS_V6 + 1,
+		.tfail = true,
+	},
+	{
+		/* send a single MSS: will fall back to no GSO */
+		.tlen = CONST_MSS_V6,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = 1,
+	},
+	{
+		/* datalen <= MSS < gso_len: will fall back to no GSO */
+		.tlen = CONST_MSS_V6,
+		.gso_len = CONST_MSS_V6 + 1,
+		.r_num_mss = 0,
+		.r_len_last = CONST_MSS_V6,
+	},
+	{
+		/* MSS < datalen < gso_len: fail */
+		.tlen = CONST_MSS_V6 + 1,
+		.gso_len = CONST_MSS_V6 + 2,
+		.tfail = true
+	},
+	{
+		/* send a single MSS + 1B */
+		.tlen = CONST_MSS_V6 + 1,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = 1,
+		.r_len_last = 1,
+	},
+	{
+		/* send exactly 2 MSS */
+		.tlen = CONST_MSS_V6 * 2,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = 2,
+	},
+	{
+		/* send 2 MSS + 1B */
+		.tlen = (CONST_MSS_V6 * 2) + 1,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = 2,
+		.r_len_last = 1,
+	},
+	{
+		/* send MAX segs */
+		.tlen = (IP6_MAX_MTU / CONST_MSS_V6) * CONST_MSS_V6,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = (IP6_MAX_MTU / CONST_MSS_V6),
+	},
+
+	{
+		/* send MAX bytes */
+		.tlen = IP6_MAX_MTU - CONST_HDRLEN_V6,
+		.gso_len = CONST_MSS_V6,
+		.r_num_mss = CONST_MAX_SEGS_V6,
+		.r_len_last = IP6_MAX_MTU - CONST_HDRLEN_V6 -
+			      (CONST_MAX_SEGS_V6 * CONST_MSS_V6),
+	},
+	{
+		/* send MAX + 1: fail */
+		.tlen = IP6_MAX_MTU - CONST_HDRLEN_V6 + 1,
+		.gso_len = CONST_MSS_V6,
+		.tfail = true,
+	},
+	{
+		/* send a single 1B MSS: will fall back to no GSO */
+		.tlen = 1,
+		.gso_len = 1,
+		.r_num_mss = 1,
+	},
+	{
+		/* send 2 1B segments */
+		.tlen = 2,
+		.gso_len = 1,
+		.r_num_mss = 2,
+	},
+	{
+		/* send 2 1B segments with extension headers */
+		.tlen = 2,
+		.gso_len = 1,
+		.r_num_mss = 2,
+		.v6_ext_hdr = true,
+	},
+	{
+		/* send 2B + 2B + 1B segments */
+		.tlen = 5,
+		.gso_len = 2,
+		.r_num_mss = 2,
+		.r_len_last = 1,
+	},
+	{
+		/* send max number of min sized segments */
+		.tlen = UDP_MAX_SEGMENTS,
+		.gso_len = 1,
+		.r_num_mss = UDP_MAX_SEGMENTS,
+	},
+	{
+		/* send max number + 1 of min sized segments: fail */
+		.tlen = UDP_MAX_SEGMENTS + 1,
+		.gso_len = 1,
+		.tfail = true,
+	},
+	{
+		/* EOL */
+	}
+};
+
+static void set_pmtu_discover(int fd, bool is_ipv4)
+{
+	int level, name, val;
+
+	if (is_ipv4) {
+		level	= SOL_IP;
+		name	= IP_MTU_DISCOVER;
+		val	= IP_PMTUDISC_DO;
+	} else {
+		level	= SOL_IPV6;
+		name	= IPV6_MTU_DISCOVER;
+		val	= IPV6_PMTUDISC_DO;
+	}
+
+	if (setsockopt(fd, level, name, &val, sizeof(val)))
+		error(1, errno, "setsockopt path mtu");
+}
+
+static unsigned int get_path_mtu(int fd, bool is_ipv4)
+{
+	socklen_t vallen;
+	unsigned int mtu;
+	int ret;
+
+	vallen = sizeof(mtu);
+	if (is_ipv4)
+		ret = getsockopt(fd, SOL_IP, IP_MTU, &mtu, &vallen);
+	else
+		ret = getsockopt(fd, SOL_IPV6, IPV6_MTU, &mtu, &vallen);
+
+	if (ret)
+		error(1, errno, "getsockopt mtu");
+
+
+	fprintf(stderr, "path mtu (read):  %u\n", mtu);
+	return mtu;
+}
+
+static bool __send_one(int fd, struct msghdr *msg, int flags)
+{
+	int ret;
+
+	ret = sendmsg(fd, msg, flags);
+	if (ret == -1 &&
+	    (errno == EMSGSIZE || errno == ENOMEM || errno == EINVAL))
+		return false;
+	if (ret == -1)
+		error(1, errno, "sendmsg");
+	if (ret != msg->msg_iov->iov_len)
+		error(1, 0, "sendto: %d != %llu", ret,
+			(unsigned long long)msg->msg_iov->iov_len);
+	if (msg->msg_flags)
+		error(1, 0, "sendmsg: return flags 0x%x\n", msg->msg_flags);
+
+	return true;
+}
+
+static bool send_one(int fd, int len, int gso_len,
+		     struct sockaddr *addr, socklen_t alen)
+{
+	char control[CMSG_SPACE(sizeof(uint16_t))] = {0};
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	struct cmsghdr *cm;
+
+	iov.iov_base = buf;
+	iov.iov_len = len;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_name = addr;
+	msg.msg_namelen = alen;
+
+	if (gso_len && !cfg_do_setsockopt) {
+		msg.msg_control = control;
+		msg.msg_controllen = sizeof(control);
+
+		cm = CMSG_FIRSTHDR(&msg);
+		cm->cmsg_level = SOL_UDP;
+		cm->cmsg_type = UDP_SEGMENT;
+		cm->cmsg_len = CMSG_LEN(sizeof(uint16_t));
+		*((uint16_t *) CMSG_DATA(cm)) = gso_len;
+	}
+
+	/* If MSG_MORE, send 1 byte followed by remainder */
+	if (cfg_do_msgmore && len > 1) {
+		iov.iov_len = 1;
+		if (!__send_one(fd, &msg, MSG_MORE))
+			error(1, 0, "send 1B failed");
+
+		iov.iov_base++;
+		iov.iov_len = len - 1;
+	}
+
+	return __send_one(fd, &msg, 0);
+}
+
+static int recv_one(int fd, int flags)
+{
+	int ret;
+
+	ret = recv(fd, buf, sizeof(buf), flags);
+	if (ret == -1 && errno == EAGAIN && (flags & MSG_DONTWAIT))
+		return 0;
+	if (ret == -1)
+		error(1, errno, "recv");
+
+	return ret;
+}
+
+static void run_one(struct testcase *test, int fdt, int fdr,
+		    struct sockaddr *addr, socklen_t alen)
+{
+	int i, ret, val, mss;
+	bool sent;
+
+	fprintf(stderr, "ipv%d tx:%d gso:%d %s%s\n",
+			addr->sa_family == AF_INET ? 4 : 6,
+			test->tlen, test->gso_len,
+			test->v6_ext_hdr ? "ext-hdr " : "",
+			test->tfail ? "(fail)" : "");
+
+	if (test->v6_ext_hdr) {
+		if (setsockopt(fdt, IPPROTO_IPV6, IPV6_HOPOPTS,
+			       ipv6_hopopts_pad1, sizeof(ipv6_hopopts_pad1)))
+			error(1, errno, "setsockopt ipv6 hopopts");
+	}
+
+	val = test->gso_len;
+	if (cfg_do_setsockopt) {
+		if (setsockopt(fdt, SOL_UDP, UDP_SEGMENT, &val, sizeof(val)))
+			error(1, errno, "setsockopt udp segment");
+	}
+
+	sent = send_one(fdt, test->tlen, test->gso_len, addr, alen);
+	if (sent && test->tfail)
+		error(1, 0, "send succeeded while expecting failure");
+	if (!sent && !test->tfail)
+		error(1, 0, "send failed while expecting success");
+
+	if (test->v6_ext_hdr) {
+		if (setsockopt(fdt, IPPROTO_IPV6, IPV6_HOPOPTS, NULL, 0))
+			error(1, errno, "setsockopt ipv6 hopopts clear");
+	}
+
+	if (!sent)
+		return;
+
+	if (!cfg_do_recv)
+		return;
+
+	if (test->gso_len)
+		mss = test->gso_len;
+	else
+		mss = addr->sa_family == AF_INET ? CONST_MSS_V4 : CONST_MSS_V6;
+
+
+	/* Recv all full MSS datagrams */
+	for (i = 0; i < test->r_num_mss; i++) {
+		ret = recv_one(fdr, 0);
+		if (ret != mss)
+			error(1, 0, "recv.%d: %d != %d", i, ret, mss);
+	}
+
+	/* Recv the non-full last datagram, if tlen was not a multiple of mss */
+	if (test->r_len_last) {
+		ret = recv_one(fdr, 0);
+		if (ret != test->r_len_last)
+			error(1, 0, "recv.%d: %d != %d (last)",
+			      i, ret, test->r_len_last);
+	}
+
+	/* Verify received all data */
+	ret = recv_one(fdr, MSG_DONTWAIT);
+	if (ret)
+		error(1, 0, "recv: unexpected datagram");
+}
+
+static void run_all(int fdt, int fdr, struct sockaddr *addr, socklen_t alen)
+{
+	struct testcase *tests, *test;
+
+	tests = addr->sa_family == AF_INET ? testcases_v4 : testcases_v6;
+
+	for (test = tests; test->tlen; test++) {
+		/* if a specific test is given, then skip all others */
+		if (cfg_specific_test_id == -1 ||
+		    cfg_specific_test_id == test - tests)
+			run_one(test, fdt, fdr, addr, alen);
+	}
+}
+
+static void run_test(struct sockaddr *addr, socklen_t alen)
+{
+	struct timeval tv = { .tv_usec = 100 * 1000 };
+	int fdr, fdt, val;
+
+	fdr = socket(addr->sa_family, SOCK_DGRAM, 0);
+	if (fdr == -1)
+		error(1, errno, "socket r");
+
+	if (cfg_do_recv) {
+		if (bind(fdr, addr, alen))
+			error(1, errno, "bind");
+	}
+
+	/* Have tests fail quickly instead of hang */
+	if (setsockopt(fdr, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)))
+		error(1, errno, "setsockopt rcv timeout");
+
+	fdt = socket(addr->sa_family, SOCK_DGRAM, 0);
+	if (fdt == -1)
+		error(1, errno, "socket t");
+
+	/* Do not fragment these datagrams: only succeed if GSO works */
+	set_pmtu_discover(fdt, addr->sa_family == AF_INET);
+
+	if (cfg_do_connectionless)
+		run_all(fdt, fdr, addr, alen);
+
+	if (cfg_do_connected) {
+		if (connect(fdt, addr, alen))
+			error(1, errno, "connect");
+
+		val = get_path_mtu(fdt, addr->sa_family == AF_INET);
+		if (val != CONST_MTU_TEST)
+			error(1, 0, "bad path mtu %u\n", val);
+
+		run_all(fdt, fdr, addr, 0 /* use connected addr */);
+	}
+
+	if (close(fdt))
+		error(1, errno, "close t");
+	if (close(fdr))
+		error(1, errno, "close r");
+}
+
+static void run_test_v4(void)
+{
+	struct sockaddr_in addr = {0};
+
+	addr.sin_family = AF_INET;
+	addr.sin_port = htons(cfg_port);
+	addr.sin_addr = addr4;
+
+	run_test((void *)&addr, sizeof(addr));
+}
+
+static void run_test_v6(void)
+{
+	struct sockaddr_in6 addr = {0};
+
+	addr.sin6_family = AF_INET6;
+	addr.sin6_port = htons(cfg_port);
+	addr.sin6_addr = addr6;
+
+	run_test((void *)&addr, sizeof(addr));
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	int c;
+
+	while ((c = getopt(argc, argv, "46cCmRst:")) != -1) {
+		switch (c) {
+		case '4':
+			cfg_do_ipv4 = true;
+			break;
+		case '6':
+			cfg_do_ipv6 = true;
+			break;
+		case 'c':
+			cfg_do_connected = true;
+			break;
+		case 'C':
+			cfg_do_connectionless = true;
+			break;
+		case 'm':
+			cfg_do_msgmore = true;
+			break;
+		case 'R':
+			cfg_do_recv = false;
+			break;
+		case 's':
+			cfg_do_setsockopt = true;
+			break;
+		case 't':
+			cfg_specific_test_id = strtoul(optarg, NULL, 0);
+			break;
+		default:
+			error(1, 0, "%s: parse error", argv[0]);
+		}
+	}
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+
+	if (cfg_do_ipv4)
+		run_test_v4();
+	if (cfg_do_ipv6)
+		run_test_v6();
+
+	fprintf(stderr, "OK\n");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/udpgso.sh b/tools/testing/selftests/net/udpgso.sh
new file mode 100755
index 000000000000..85d1fa3c1ff7
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso.sh
@@ -0,0 +1,101 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgso regression tests
+
+set -o errexit
+set -o nounset
+
+setup_loopback() {
+	ip addr add dev lo 10.0.0.1/32
+	ip addr add dev lo fd00::1/128 nodad noprefixroute
+}
+
+test_dev_mtu() {
+	setup_loopback
+	# Reduce loopback MTU
+	ip link set dev lo mtu 1500
+}
+
+test_route_mtu() {
+	setup_loopback
+	# Remove default local routes
+	ip route del local 10.0.0.1/32 table local dev lo
+	ip route del local fd00::1/128 table local dev lo
+	# Install local routes with reduced MTU
+	ip route add local 10.0.0.1/32 table local dev lo mtu 1500
+	ip route add local fd00::1/128 table local dev lo mtu 1500
+}
+
+setup_dummy_sink() {
+	ip link add name sink mtu 1500 type dummy
+	ip addr add dev sink 10.0.0.0/24
+	ip addr add dev sink fd00::2/64 nodad
+	ip link set dev sink up
+}
+
+test_hw_gso_hw_csum() {
+	setup_dummy_sink
+	ethtool -K sink tx-checksum-ip-generic on >/dev/null
+	ethtool -K sink tx-udp-segmentation on >/dev/null
+}
+
+test_sw_gso_hw_csum() {
+	setup_dummy_sink
+	ethtool -K sink tx-checksum-ip-generic on >/dev/null
+	ethtool -K sink tx-udp-segmentation off >/dev/null
+}
+
+test_sw_gso_sw_csum() {
+	setup_dummy_sink
+	ethtool -K sink tx-checksum-ip-generic off >/dev/null
+	ethtool -K sink tx-udp-segmentation off >/dev/null
+}
+
+if [ "$#" -gt 0 ]; then
+	"$1"
+	shift 2 # pop "test_*" arg and "--" delimiter
+	exec "$@"
+fi
+
+echo "ipv4 cmsg"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -4 -C
+
+echo "ipv4 setsockopt"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -4 -C -s
+
+echo "ipv6 cmsg"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -6 -C
+
+echo "ipv6 setsockopt"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -6 -C -s
+
+echo "ipv4 connected"
+./in_netns.sh "$0" test_route_mtu -- ./udpgso -4 -c
+
+echo "ipv6 connected"
+./in_netns.sh "$0" test_route_mtu -- ./udpgso -6 -c
+
+echo "ipv4 msg_more"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -4 -C -m
+
+echo "ipv6 msg_more"
+./in_netns.sh "$0" test_dev_mtu -- ./udpgso -6 -C -m
+
+echo "ipv4 hw-gso hw-csum"
+./in_netns.sh "$0" test_hw_gso_hw_csum -- ./udpgso -4 -C -R
+
+echo "ipv6 hw-gso hw-csum"
+./in_netns.sh "$0" test_hw_gso_hw_csum -- ./udpgso -6 -C -R
+
+echo "ipv4 sw-gso hw-csum"
+./in_netns.sh "$0" test_sw_gso_hw_csum -- ./udpgso -4 -C -R
+
+echo "ipv6 sw-gso hw-csum"
+./in_netns.sh "$0" test_sw_gso_hw_csum -- ./udpgso -6 -C -R
+
+echo "ipv4 sw-gso sw-csum"
+./in_netns.sh "$0" test_sw_gso_sw_csum -- ./udpgso -4 -C -R
+
+echo "ipv6 sw-gso sw-csum"
+./in_netns.sh "$0" test_sw_gso_sw_csum -- ./udpgso -6 -C -R
diff --git a/tools/testing/selftests/net/udpgso_bench.sh b/tools/testing/selftests/net/udpgso_bench.sh
new file mode 100755
index 000000000000..88fa1d53ba2b
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench.sh
@@ -0,0 +1,154 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run a series of udpgso benchmarks
+
+readonly GREEN='\033[0;92m'
+readonly YELLOW='\033[0;33m'
+readonly RED='\033[0;31m'
+readonly NC='\033[0m' # No Color
+readonly TESTPORT=8000
+
+readonly KSFT_PASS=0
+readonly KSFT_FAIL=1
+readonly KSFT_SKIP=4
+
+num_pass=0
+num_err=0
+num_skip=0
+
+kselftest_test_exitcode() {
+	local -r exitcode=$1
+
+	if [[ ${exitcode} -eq ${KSFT_PASS} ]]; then
+		num_pass=$(( $num_pass + 1 ))
+	elif [[ ${exitcode} -eq ${KSFT_SKIP} ]]; then
+		num_skip=$(( $num_skip + 1 ))
+	else
+		num_err=$(( $num_err + 1 ))
+	fi
+}
+
+kselftest_exit() {
+	echo -e "$(basename $0): PASS=${num_pass} SKIP=${num_skip} FAIL=${num_err}"
+
+	if [[ $num_err -ne 0 ]]; then
+		echo -e "$(basename $0): ${RED}FAIL${NC}"
+		exit ${KSFT_FAIL}
+	fi
+
+	if [[ $num_skip -ne 0 ]]; then
+		echo -e "$(basename $0): ${YELLOW}SKIP${NC}"
+		exit ${KSFT_SKIP}
+	fi
+
+	echo -e "$(basename $0): ${GREEN}PASS${NC}"
+	exit ${KSFT_PASS}
+}
+
+wake_children() {
+	local -r jobs="$(jobs -p)"
+
+	if [[ "${jobs}" != "" ]]; then
+		kill -1 ${jobs} 2>/dev/null
+	fi
+}
+trap wake_children EXIT
+
+run_one() {
+	local -r args=$@
+	local nr_socks=0
+	local i=0
+	local -r timeout=10
+
+	./udpgso_bench_rx -p "$TESTPORT" &
+	./udpgso_bench_rx -p "$TESTPORT" -t &
+
+	# Wait for the above test program to get ready to receive connections.
+	while [ "$i" -lt "$timeout" ]; do
+		nr_socks="$(ss -lnHi | grep -c "\*:${TESTPORT}")"
+		[ "$nr_socks" -eq 2 ] && break
+		i=$((i + 1))
+		sleep 1
+	done
+	if [ "$nr_socks" -ne 2 ]; then
+		echo "timed out while waiting for udpgso_bench_rx"
+		exit 1
+	fi
+
+	./udpgso_bench_tx -p "$TESTPORT" ${args}
+}
+
+run_in_netns() {
+	local -r args=$@
+
+	./in_netns.sh $0 __subprocess ${args}
+	kselftest_test_exitcode $?
+}
+
+run_udp() {
+	local -r args=$@
+
+	echo "udp"
+	run_in_netns ${args}
+
+	echo "udp sendmmsg"
+	run_in_netns ${args} -m
+
+	echo "udp gso"
+	run_in_netns ${args} -S 0
+
+	echo "udp gso zerocopy"
+	run_in_netns ${args} -S 0 -z
+
+	echo "udp gso timestamp"
+	run_in_netns ${args} -S 0 -T
+
+	echo "udp gso zerocopy audit"
+	run_in_netns ${args} -S 0 -z -a
+
+	echo "udp gso timestamp audit"
+	run_in_netns ${args} -S 0 -T -a
+
+	echo "udp gso zerocopy timestamp audit"
+	run_in_netns ${args} -S 0 -T -z -a
+}
+
+run_tcp() {
+	local -r args=$@
+
+	echo "tcp"
+	run_in_netns ${args} -t
+
+	echo "tcp zerocopy"
+	run_in_netns ${args} -t -z
+
+	# excluding for now because test fails intermittently
+	# add -P option to include poll() to reduce possibility of lost messages
+	#echo "tcp zerocopy audit"
+	#run_in_netns ${args} -t -z -P -a
+}
+
+run_all() {
+	local -r core_args="-l 3"
+	local -r ipv4_args="${core_args} -4 -D 127.0.0.1"
+	local -r ipv6_args="${core_args} -6 -D ::1"
+
+	echo "ipv4"
+	run_tcp "${ipv4_args}"
+	run_udp "${ipv4_args}"
+
+	echo "ipv6"
+	run_tcp "${ipv6_args}"
+	run_udp "${ipv6_args}"
+}
+
+if [[ $# -eq 0 ]]; then
+	run_all
+	kselftest_exit
+elif [[ $1 == "__subprocess" ]]; then
+	shift
+	run_one $@
+else
+	run_in_netns $@
+fi
diff --git a/tools/testing/selftests/net/udpgso_bench_rx.c b/tools/testing/selftests/net/udpgso_bench_rx.c
new file mode 100644
index 000000000000..1cbadd267c96
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench_rx.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <error.h>
+#include <errno.h>
+#include <limits.h>
+#include <linux/errqueue.h>
+#include <linux/if_packet.h>
+#include <linux/socket.h>
+#include <linux/sockios.h>
+#include <net/ethernet.h>
+#include <net/if.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/tcp.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#ifndef UDP_GRO
+#define UDP_GRO		104
+#endif
+
+static int  cfg_port		= 8000;
+static bool cfg_tcp;
+static bool cfg_verify;
+static bool cfg_read_all;
+static bool cfg_gro_segment;
+static int  cfg_family		= PF_INET6;
+static int  cfg_alen 		= sizeof(struct sockaddr_in6);
+static int  cfg_expected_pkt_nr;
+static int  cfg_expected_pkt_len;
+static int  cfg_expected_gso_size;
+static int  cfg_connect_timeout_ms;
+static int  cfg_rcv_timeout_ms;
+static struct sockaddr_storage cfg_bind_addr;
+
+static bool interrupted;
+static unsigned long packets, bytes;
+
+static void sigint_handler(int signum)
+{
+	if (signum == SIGINT)
+		interrupted = true;
+}
+
+static void setup_sockaddr(int domain, const char *str_addr, void *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (domain) {
+	case PF_INET:
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", str_addr);
+		break;
+	case PF_INET6:
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", str_addr);
+		break;
+	default:
+		error(1, 0, "illegal domain");
+	}
+}
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static void do_poll(int fd, int timeout_ms)
+{
+	struct pollfd pfd;
+	int ret;
+
+	pfd.events = POLLIN;
+	pfd.revents = 0;
+	pfd.fd = fd;
+
+	do {
+		ret = poll(&pfd, 1, 10);
+		if (interrupted)
+			break;
+		if (ret == -1)
+			error(1, errno, "poll");
+		if (ret == 0) {
+			if (!timeout_ms)
+				continue;
+
+			timeout_ms -= 10;
+			if (timeout_ms <= 0) {
+				interrupted = true;
+				break;
+			}
+
+			/* no events and more time to wait, do poll again */
+			continue;
+		}
+		if (pfd.revents != POLLIN)
+			error(1, errno, "poll: 0x%x expected 0x%x\n",
+					pfd.revents, POLLIN);
+	} while (!ret);
+}
+
+static int do_socket(bool do_tcp)
+{
+	int fd, val;
+
+	fd = socket(cfg_family, cfg_tcp ? SOCK_STREAM : SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket");
+
+	val = 1 << 21;
+	if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof(val)))
+		error(1, errno, "setsockopt rcvbuf");
+	val = 1;
+	if (setsockopt(fd, SOL_SOCKET, SO_REUSEPORT, &val, sizeof(val)))
+		error(1, errno, "setsockopt reuseport");
+
+	if (bind(fd, (void *)&cfg_bind_addr, cfg_alen))
+		error(1, errno, "bind");
+
+	if (do_tcp) {
+		int accept_fd = fd;
+
+		if (listen(accept_fd, 1))
+			error(1, errno, "listen");
+
+		do_poll(accept_fd, cfg_connect_timeout_ms);
+		if (interrupted)
+			exit(0);
+
+		fd = accept(accept_fd, NULL, NULL);
+		if (fd == -1)
+			error(1, errno, "accept");
+		if (close(accept_fd))
+			error(1, errno, "close accept fd");
+	}
+
+	return fd;
+}
+
+/* Flush all outstanding bytes for the tcp receive queue */
+static void do_flush_tcp(int fd)
+{
+	int ret;
+
+	while (true) {
+		/* MSG_TRUNC flushes up to len bytes */
+		ret = recv(fd, NULL, 1 << 21, MSG_TRUNC | MSG_DONTWAIT);
+		if (ret == -1 && errno == EAGAIN)
+			return;
+		if (ret == -1)
+			error(1, errno, "flush");
+		if (ret == 0) {
+			/* client detached */
+			exit(0);
+		}
+
+		packets++;
+		bytes += ret;
+	}
+
+}
+
+static char sanitized_char(char val)
+{
+	return (val >= 'a' && val <= 'z') ? val : '.';
+}
+
+static void do_verify_udp(const char *data, int len)
+{
+	char cur = data[0];
+	int i;
+
+	/* verify contents */
+	if (cur < 'a' || cur > 'z')
+		error(1, 0, "data initial byte out of range");
+
+	for (i = 1; i < len; i++) {
+		if (cur == 'z')
+			cur = 'a';
+		else
+			cur++;
+
+		if (data[i] != cur)
+			error(1, 0, "data[%d]: len %d, %c(%hhu) != %c(%hhu)\n",
+			      i, len,
+			      sanitized_char(data[i]), data[i],
+			      sanitized_char(cur), cur);
+	}
+}
+
+static int recv_msg(int fd, char *buf, int len, int *gso_size)
+{
+	char control[CMSG_SPACE(sizeof(int))] = {0};
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	struct cmsghdr *cmsg;
+	int ret;
+
+	iov.iov_base = buf;
+	iov.iov_len = len;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+
+	*gso_size = -1;
+	ret = recvmsg(fd, &msg, MSG_TRUNC | MSG_DONTWAIT);
+	if (ret != -1) {
+		for (cmsg = CMSG_FIRSTHDR(&msg); cmsg != NULL;
+		     cmsg = CMSG_NXTHDR(&msg, cmsg)) {
+			if (cmsg->cmsg_level == SOL_UDP
+			    && cmsg->cmsg_type == UDP_GRO) {
+				*gso_size = *(int *)CMSG_DATA(cmsg);
+				break;
+			}
+		}
+	}
+	return ret;
+}
+
+/* Flush all outstanding datagrams. Verify first few bytes of each. */
+static void do_flush_udp(int fd)
+{
+	static char rbuf[ETH_MAX_MTU];
+	int ret, len, gso_size = 0, budget = 256;
+
+	len = cfg_read_all ? sizeof(rbuf) : 0;
+	while (budget--) {
+		/* MSG_TRUNC will make return value full datagram length */
+		if (!cfg_expected_gso_size)
+			ret = recv(fd, rbuf, len, MSG_TRUNC | MSG_DONTWAIT);
+		else
+			ret = recv_msg(fd, rbuf, len, &gso_size);
+		if (ret == -1 && errno == EAGAIN)
+			break;
+		if (ret == -1)
+			error(1, errno, "recv");
+		if (cfg_expected_pkt_len && ret != cfg_expected_pkt_len)
+			error(1, 0, "recv: bad packet len, got %d,"
+			      " expected %d\n", ret, cfg_expected_pkt_len);
+		if (len && cfg_verify) {
+			if (ret == 0)
+				error(1, errno, "recv: 0 byte datagram\n");
+
+			do_verify_udp(rbuf, ret);
+		}
+		if (cfg_expected_gso_size && cfg_expected_gso_size != gso_size)
+			error(1, 0, "recv: bad gso size, got %d, expected %d "
+			      "(-1 == no gso cmsg))\n", gso_size,
+			      cfg_expected_gso_size);
+
+		packets++;
+		bytes += ret;
+		if (cfg_expected_pkt_nr && packets >= cfg_expected_pkt_nr)
+			break;
+	}
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s [-C connect_timeout] [-Grtv] [-b addr] [-p port]"
+	      " [-l pktlen] [-n packetnr] [-R rcv_timeout] [-S gsosize]",
+	      filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	const char *bind_addr = NULL;
+	int c;
+
+	while ((c = getopt(argc, argv, "4b:C:Gl:n:p:rR:S:tv")) != -1) {
+		switch (c) {
+		case '4':
+			cfg_family = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			break;
+		case 'b':
+			bind_addr = optarg;
+			break;
+		case 'C':
+			cfg_connect_timeout_ms = strtoul(optarg, NULL, 0);
+			break;
+		case 'G':
+			cfg_gro_segment = true;
+			break;
+		case 'l':
+			cfg_expected_pkt_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'n':
+			cfg_expected_pkt_nr = strtoul(optarg, NULL, 0);
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 'r':
+			cfg_read_all = true;
+			break;
+		case 'R':
+			cfg_rcv_timeout_ms = strtoul(optarg, NULL, 0);
+			break;
+		case 'S':
+			cfg_expected_gso_size = strtol(optarg, NULL, 0);
+			break;
+		case 't':
+			cfg_tcp = true;
+			break;
+		case 'v':
+			cfg_verify = true;
+			cfg_read_all = true;
+			break;
+		default:
+			exit(1);
+		}
+	}
+
+	if (!bind_addr)
+		bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+	setup_sockaddr(cfg_family, bind_addr, &cfg_bind_addr);
+
+	if (optind != argc)
+		usage(argv[0]);
+
+	if (cfg_tcp && cfg_verify)
+		error(1, 0, "TODO: implement verify mode for tcp");
+}
+
+static void do_recv(void)
+{
+	int timeout_ms = cfg_tcp ? cfg_rcv_timeout_ms : cfg_connect_timeout_ms;
+	unsigned long tnow, treport;
+	int fd;
+
+	fd = do_socket(cfg_tcp);
+
+	if (cfg_gro_segment && !cfg_tcp) {
+		int val = 1;
+		if (setsockopt(fd, IPPROTO_UDP, UDP_GRO, &val, sizeof(val)))
+			error(1, errno, "setsockopt UDP_GRO");
+	}
+
+	treport = gettimeofday_ms() + 1000;
+	do {
+		do_poll(fd, timeout_ms);
+
+		if (cfg_tcp)
+			do_flush_tcp(fd);
+		else
+			do_flush_udp(fd);
+
+		tnow = gettimeofday_ms();
+		if (!cfg_expected_pkt_nr && tnow > treport) {
+			if (packets)
+				fprintf(stderr,
+					"%s rx: %6lu MB/s %8lu calls/s\n",
+					cfg_tcp ? "tcp" : "udp",
+					bytes >> 20, packets);
+			bytes = packets = 0;
+			treport = tnow + 1000;
+		}
+
+		timeout_ms = cfg_rcv_timeout_ms;
+
+	} while (!interrupted);
+
+	if (cfg_expected_pkt_nr && (packets != cfg_expected_pkt_nr))
+		error(1, 0, "wrong packet number! got %ld, expected %d\n",
+		      packets, cfg_expected_pkt_nr);
+
+	if (close(fd))
+		error(1, errno, "close");
+}
+
+int main(int argc, char **argv)
+{
+	parse_opts(argc, argv);
+
+	signal(SIGINT, sigint_handler);
+
+	do_recv();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/udpgso_bench_tx.c b/tools/testing/selftests/net/udpgso_bench_tx.c
new file mode 100644
index 000000000000..86d80cce55b4
--- /dev/null
+++ b/tools/testing/selftests/net/udpgso_bench_tx.c
@@ -0,0 +1,734 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <error.h>
+#include <linux/errqueue.h>
+#include <linux/net_tstamp.h>
+#include <netinet/if_ether.h>
+#include <netinet/in.h>
+#include <netinet/ip.h>
+#include <netinet/ip6.h>
+#include <netinet/udp.h>
+#include <poll.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#ifndef ETH_MAX_MTU
+#define ETH_MAX_MTU 0xFFFFU
+#endif
+
+#ifndef UDP_SEGMENT
+#define UDP_SEGMENT		103
+#endif
+
+#ifndef SO_ZEROCOPY
+#define SO_ZEROCOPY	60
+#endif
+
+#ifndef SO_EE_ORIGIN_ZEROCOPY
+#define SO_EE_ORIGIN_ZEROCOPY 5
+#endif
+
+#ifndef MSG_ZEROCOPY
+#define MSG_ZEROCOPY	0x4000000
+#endif
+
+#ifndef ENOTSUPP
+#define ENOTSUPP	524
+#endif
+
+#define NUM_PKT		100
+
+static bool	cfg_cache_trash;
+static int	cfg_cpu		= -1;
+static int	cfg_connected	= true;
+static int	cfg_family	= PF_UNSPEC;
+static uint16_t	cfg_mss;
+static int	cfg_payload_len	= (1472 * 42);
+static int	cfg_port	= 8000;
+static int	cfg_runtime_ms	= -1;
+static bool	cfg_poll;
+static int	cfg_poll_loop_timeout_ms = 2000;
+static bool	cfg_segment;
+static bool	cfg_sendmmsg;
+static bool	cfg_tcp;
+static uint32_t	cfg_tx_ts = SOF_TIMESTAMPING_TX_SOFTWARE;
+static bool	cfg_tx_tstamp;
+static bool	cfg_audit;
+static bool	cfg_verbose;
+static bool	cfg_zerocopy;
+static int	cfg_msg_nr;
+static uint16_t	cfg_gso_size;
+static unsigned long total_num_msgs;
+static unsigned long total_num_sends;
+static unsigned long stat_tx_ts;
+static unsigned long stat_tx_ts_errors;
+static unsigned long tstart;
+static unsigned long tend;
+static unsigned long stat_zcopies;
+
+static socklen_t cfg_alen;
+static struct sockaddr_storage cfg_dst_addr;
+
+static bool interrupted;
+static char buf[NUM_PKT][ETH_MAX_MTU];
+
+static void sigint_handler(int signum)
+{
+	if (signum == SIGINT)
+		interrupted = true;
+}
+
+static unsigned long gettimeofday_ms(void)
+{
+	struct timeval tv;
+
+	gettimeofday(&tv, NULL);
+	return (tv.tv_sec * 1000) + (tv.tv_usec / 1000);
+}
+
+static int set_cpu(int cpu)
+{
+	cpu_set_t mask;
+
+	CPU_ZERO(&mask);
+	CPU_SET(cpu, &mask);
+	if (sched_setaffinity(0, sizeof(mask), &mask))
+		error(1, 0, "setaffinity %d", cpu);
+
+	return 0;
+}
+
+static void setup_sockaddr(int domain, const char *str_addr, void *sockaddr)
+{
+	struct sockaddr_in6 *addr6 = (void *) sockaddr;
+	struct sockaddr_in *addr4 = (void *) sockaddr;
+
+	switch (domain) {
+	case PF_INET:
+		addr4->sin_family = AF_INET;
+		addr4->sin_port = htons(cfg_port);
+		if (inet_pton(AF_INET, str_addr, &(addr4->sin_addr)) != 1)
+			error(1, 0, "ipv4 parse error: %s", str_addr);
+		break;
+	case PF_INET6:
+		addr6->sin6_family = AF_INET6;
+		addr6->sin6_port = htons(cfg_port);
+		if (inet_pton(AF_INET6, str_addr, &(addr6->sin6_addr)) != 1)
+			error(1, 0, "ipv6 parse error: %s", str_addr);
+		break;
+	default:
+		error(1, 0, "illegal domain");
+	}
+}
+
+static void flush_cmsg(struct cmsghdr *cmsg)
+{
+	struct sock_extended_err *err;
+	struct scm_timestamping *tss;
+	__u32 lo;
+	__u32 hi;
+	int i;
+
+	switch (cmsg->cmsg_level) {
+	case SOL_SOCKET:
+		if (cmsg->cmsg_type == SO_TIMESTAMPING) {
+			i = (cfg_tx_ts == SOF_TIMESTAMPING_TX_HARDWARE) ? 2 : 0;
+			tss = (struct scm_timestamping *)CMSG_DATA(cmsg);
+			if (tss->ts[i].tv_sec == 0)
+				stat_tx_ts_errors++;
+		} else {
+			error(1, 0, "unknown SOL_SOCKET cmsg type=%u\n",
+			      cmsg->cmsg_type);
+		}
+		break;
+	case SOL_IP:
+	case SOL_IPV6:
+		switch (cmsg->cmsg_type) {
+		case IP_RECVERR:
+		case IPV6_RECVERR:
+		{
+			err = (struct sock_extended_err *)CMSG_DATA(cmsg);
+			switch (err->ee_origin) {
+			case SO_EE_ORIGIN_TIMESTAMPING:
+				/* Got a TX timestamp from error queue */
+				stat_tx_ts++;
+				break;
+			case SO_EE_ORIGIN_ICMP:
+			case SO_EE_ORIGIN_ICMP6:
+				if (cfg_verbose)
+					fprintf(stderr,
+						"received ICMP error: type=%u, code=%u\n",
+						err->ee_type, err->ee_code);
+				break;
+			case SO_EE_ORIGIN_ZEROCOPY:
+			{
+				lo = err->ee_info;
+				hi = err->ee_data;
+				/* range of IDs acknowledged */
+				stat_zcopies += hi - lo + 1;
+				break;
+			}
+			case SO_EE_ORIGIN_LOCAL:
+				if (cfg_verbose)
+					fprintf(stderr,
+						"received packet with local origin: %u\n",
+						err->ee_origin);
+				break;
+			default:
+				error(0, 1, "received packet with origin: %u",
+				      err->ee_origin);
+			}
+			break;
+		}
+		default:
+			error(0, 1, "unknown IP msg type=%u\n",
+			      cmsg->cmsg_type);
+			break;
+		}
+		break;
+	default:
+		error(0, 1, "unknown cmsg level=%u\n",
+		      cmsg->cmsg_level);
+	}
+}
+
+static void flush_errqueue_recv(int fd)
+{
+	char control[CMSG_SPACE(sizeof(struct scm_timestamping)) +
+		     CMSG_SPACE(sizeof(struct sock_extended_err)) +
+		     CMSG_SPACE(sizeof(struct sockaddr_in6))] = {0};
+	struct msghdr msg = {0};
+	struct cmsghdr *cmsg;
+	int ret;
+
+	while (1) {
+		msg.msg_control = control;
+		msg.msg_controllen = sizeof(control);
+		ret = recvmsg(fd, &msg, MSG_ERRQUEUE);
+		if (ret == -1 && errno == EAGAIN)
+			break;
+		if (ret == -1)
+			error(1, errno, "errqueue");
+		if (msg.msg_flags != MSG_ERRQUEUE)
+			error(1, 0, "errqueue: flags 0x%x\n", msg.msg_flags);
+		if (cfg_audit) {
+			for (cmsg = CMSG_FIRSTHDR(&msg);
+					cmsg;
+					cmsg = CMSG_NXTHDR(&msg, cmsg))
+				flush_cmsg(cmsg);
+		}
+		msg.msg_flags = 0;
+	}
+}
+
+static void flush_errqueue(int fd, const bool do_poll,
+			   unsigned long poll_timeout, const bool poll_err)
+{
+	if (do_poll) {
+		struct pollfd fds = {0};
+		int ret;
+
+		fds.fd = fd;
+		ret = poll(&fds, 1, poll_timeout);
+		if (ret == 0) {
+			if ((cfg_verbose) && (poll_err))
+				fprintf(stderr, "poll timeout\n");
+		} else if (ret < 0) {
+			error(1, errno, "poll");
+		}
+	}
+
+	flush_errqueue_recv(fd);
+}
+
+static void flush_errqueue_retry(int fd, unsigned long num_sends)
+{
+	unsigned long tnow, tstop;
+	bool first_try = true;
+
+	tnow = gettimeofday_ms();
+	tstop = tnow + cfg_poll_loop_timeout_ms;
+	do {
+		flush_errqueue(fd, true, tstop - tnow, first_try);
+		first_try = false;
+		tnow = gettimeofday_ms();
+	} while ((stat_zcopies != num_sends) && (tnow < tstop));
+}
+
+static int send_tcp(int fd, char *data)
+{
+	int ret, done = 0, count = 0;
+
+	while (done < cfg_payload_len) {
+		ret = send(fd, data + done, cfg_payload_len - done,
+			   cfg_zerocopy ? MSG_ZEROCOPY : 0);
+		if (ret == -1)
+			error(1, errno, "write");
+
+		done += ret;
+		count++;
+	}
+
+	return count;
+}
+
+static int send_udp(int fd, char *data)
+{
+	int ret, total_len, len, count = 0;
+
+	total_len = cfg_payload_len;
+
+	while (total_len) {
+		len = total_len < cfg_mss ? total_len : cfg_mss;
+
+		ret = sendto(fd, data, len, cfg_zerocopy ? MSG_ZEROCOPY : 0,
+			     cfg_connected ? NULL : (void *)&cfg_dst_addr,
+			     cfg_connected ? 0 : cfg_alen);
+		if (ret == -1)
+			error(1, errno, "write");
+		if (ret != len)
+			error(1, errno, "write: %uB != %uB\n", ret, len);
+
+		total_len -= len;
+		count++;
+	}
+
+	return count;
+}
+
+static void send_ts_cmsg(struct cmsghdr *cm)
+{
+	uint32_t *valp;
+
+	cm->cmsg_level = SOL_SOCKET;
+	cm->cmsg_type = SO_TIMESTAMPING;
+	cm->cmsg_len = CMSG_LEN(sizeof(cfg_tx_ts));
+	valp = (void *)CMSG_DATA(cm);
+	*valp = cfg_tx_ts;
+}
+
+static int send_udp_sendmmsg(int fd, char *data)
+{
+	char control[CMSG_SPACE(sizeof(cfg_tx_ts))] = {0};
+	const int max_nr_msg = ETH_MAX_MTU / ETH_DATA_LEN;
+	struct mmsghdr mmsgs[max_nr_msg];
+	struct iovec iov[max_nr_msg];
+	unsigned int off = 0, left;
+	size_t msg_controllen = 0;
+	int i = 0, ret;
+
+	memset(mmsgs, 0, sizeof(mmsgs));
+
+	if (cfg_tx_tstamp) {
+		struct msghdr msg = {0};
+		struct cmsghdr *cmsg;
+
+		msg.msg_control = control;
+		msg.msg_controllen = sizeof(control);
+		cmsg = CMSG_FIRSTHDR(&msg);
+		send_ts_cmsg(cmsg);
+		msg_controllen += CMSG_SPACE(sizeof(cfg_tx_ts));
+	}
+
+	left = cfg_payload_len;
+	while (left) {
+		if (i == max_nr_msg)
+			error(1, 0, "sendmmsg: exceeds max_nr_msg");
+
+		iov[i].iov_base = data + off;
+		iov[i].iov_len = cfg_mss < left ? cfg_mss : left;
+
+		mmsgs[i].msg_hdr.msg_iov = iov + i;
+		mmsgs[i].msg_hdr.msg_iovlen = 1;
+
+		mmsgs[i].msg_hdr.msg_name = (void *)&cfg_dst_addr;
+		mmsgs[i].msg_hdr.msg_namelen = cfg_alen;
+		if (msg_controllen) {
+			mmsgs[i].msg_hdr.msg_control = control;
+			mmsgs[i].msg_hdr.msg_controllen = msg_controllen;
+		}
+
+		off += iov[i].iov_len;
+		left -= iov[i].iov_len;
+		i++;
+	}
+
+	ret = sendmmsg(fd, mmsgs, i, cfg_zerocopy ? MSG_ZEROCOPY : 0);
+	if (ret == -1)
+		error(1, errno, "sendmmsg");
+
+	return ret;
+}
+
+static void send_udp_segment_cmsg(struct cmsghdr *cm)
+{
+	uint16_t *valp;
+
+	cm->cmsg_level = SOL_UDP;
+	cm->cmsg_type = UDP_SEGMENT;
+	cm->cmsg_len = CMSG_LEN(sizeof(cfg_gso_size));
+	valp = (void *)CMSG_DATA(cm);
+	*valp = cfg_gso_size;
+}
+
+static int send_udp_segment(int fd, char *data)
+{
+	char control[CMSG_SPACE(sizeof(cfg_gso_size)) +
+		     CMSG_SPACE(sizeof(cfg_tx_ts))] = {0};
+	struct msghdr msg = {0};
+	struct iovec iov = {0};
+	size_t msg_controllen;
+	struct cmsghdr *cmsg;
+	int ret;
+
+	iov.iov_base = data;
+	iov.iov_len = cfg_payload_len;
+
+	msg.msg_iov = &iov;
+	msg.msg_iovlen = 1;
+
+	msg.msg_control = control;
+	msg.msg_controllen = sizeof(control);
+	cmsg = CMSG_FIRSTHDR(&msg);
+	send_udp_segment_cmsg(cmsg);
+	msg_controllen = CMSG_SPACE(sizeof(cfg_mss));
+	if (cfg_tx_tstamp) {
+		cmsg = CMSG_NXTHDR(&msg, cmsg);
+		send_ts_cmsg(cmsg);
+		msg_controllen += CMSG_SPACE(sizeof(cfg_tx_ts));
+	}
+
+	msg.msg_controllen = msg_controllen;
+	msg.msg_name = (void *)&cfg_dst_addr;
+	msg.msg_namelen = cfg_alen;
+
+	ret = sendmsg(fd, &msg, cfg_zerocopy ? MSG_ZEROCOPY : 0);
+	if (ret == -1)
+		error(1, errno, "sendmsg");
+	if (ret != iov.iov_len)
+		error(1, 0, "sendmsg: %u != %llu\n", ret,
+			(unsigned long long)iov.iov_len);
+
+	return 1;
+}
+
+static void usage(const char *filepath)
+{
+	error(1, 0, "Usage: %s [-46acmHPtTuvz] [-C cpu] [-D dst ip] [-l secs] "
+		    "[-L secs] [-M messagenr] [-p port] [-s sendsize] [-S gsosize]",
+		    filepath);
+}
+
+static void parse_opts(int argc, char **argv)
+{
+	const char *bind_addr = NULL;
+	int max_len, hdrlen;
+	int c;
+
+	while ((c = getopt(argc, argv, "46acC:D:Hl:L:mM:p:s:PS:tTuvz")) != -1) {
+		switch (c) {
+		case '4':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET;
+			cfg_alen = sizeof(struct sockaddr_in);
+			break;
+		case '6':
+			if (cfg_family != PF_UNSPEC)
+				error(1, 0, "Pass one of -4 or -6");
+			cfg_family = PF_INET6;
+			cfg_alen = sizeof(struct sockaddr_in6);
+			break;
+		case 'a':
+			cfg_audit = true;
+			break;
+		case 'c':
+			cfg_cache_trash = true;
+			break;
+		case 'C':
+			cfg_cpu = strtol(optarg, NULL, 0);
+			break;
+		case 'D':
+			bind_addr = optarg;
+			break;
+		case 'l':
+			cfg_runtime_ms = strtoul(optarg, NULL, 10) * 1000;
+			break;
+		case 'L':
+			cfg_poll_loop_timeout_ms = strtoul(optarg, NULL, 10) * 1000;
+			break;
+		case 'm':
+			cfg_sendmmsg = true;
+			break;
+		case 'M':
+			cfg_msg_nr = strtoul(optarg, NULL, 10);
+			break;
+		case 'p':
+			cfg_port = strtoul(optarg, NULL, 0);
+			break;
+		case 'P':
+			cfg_poll = true;
+			break;
+		case 's':
+			cfg_payload_len = strtoul(optarg, NULL, 0);
+			break;
+		case 'S':
+			cfg_gso_size = strtoul(optarg, NULL, 0);
+			cfg_segment = true;
+			break;
+		case 'H':
+			cfg_tx_ts = SOF_TIMESTAMPING_TX_HARDWARE;
+			cfg_tx_tstamp = true;
+			break;
+		case 't':
+			cfg_tcp = true;
+			break;
+		case 'T':
+			cfg_tx_tstamp = true;
+			break;
+		case 'u':
+			cfg_connected = false;
+			break;
+		case 'v':
+			cfg_verbose = true;
+			break;
+		case 'z':
+			cfg_zerocopy = true;
+			break;
+		default:
+			exit(1);
+		}
+	}
+
+	if (!bind_addr)
+		bind_addr = cfg_family == PF_INET6 ? "::" : "0.0.0.0";
+
+	setup_sockaddr(cfg_family, bind_addr, &cfg_dst_addr);
+
+	if (optind != argc)
+		usage(argv[0]);
+
+	if (cfg_family == PF_UNSPEC)
+		error(1, 0, "must pass one of -4 or -6");
+	if (cfg_tcp && !cfg_connected)
+		error(1, 0, "connectionless tcp makes no sense");
+	if (cfg_segment && cfg_sendmmsg)
+		error(1, 0, "cannot combine segment offload and sendmmsg");
+	if (cfg_tx_tstamp && !(cfg_segment || cfg_sendmmsg))
+		error(1, 0, "Options -T and -H require either -S or -m option");
+
+	if (cfg_family == PF_INET)
+		hdrlen = sizeof(struct iphdr) + sizeof(struct udphdr);
+	else
+		hdrlen = sizeof(struct ip6_hdr) + sizeof(struct udphdr);
+
+	cfg_mss = ETH_DATA_LEN - hdrlen;
+	max_len = ETH_MAX_MTU - hdrlen;
+	if (!cfg_gso_size)
+		cfg_gso_size = cfg_mss;
+
+	if (cfg_payload_len > max_len)
+		error(1, 0, "payload length %u exceeds max %u",
+		      cfg_payload_len, max_len);
+}
+
+static void set_pmtu_discover(int fd, bool is_ipv4)
+{
+	int level, name, val;
+
+	if (is_ipv4) {
+		level	= SOL_IP;
+		name	= IP_MTU_DISCOVER;
+		val	= IP_PMTUDISC_DO;
+	} else {
+		level	= SOL_IPV6;
+		name	= IPV6_MTU_DISCOVER;
+		val	= IPV6_PMTUDISC_DO;
+	}
+
+	if (setsockopt(fd, level, name, &val, sizeof(val)))
+		error(1, errno, "setsockopt path mtu");
+}
+
+static void set_tx_timestamping(int fd)
+{
+	int val = SOF_TIMESTAMPING_OPT_CMSG | SOF_TIMESTAMPING_OPT_ID |
+			SOF_TIMESTAMPING_OPT_TSONLY;
+
+	if (cfg_tx_ts == SOF_TIMESTAMPING_TX_SOFTWARE)
+		val |= SOF_TIMESTAMPING_SOFTWARE;
+	else
+		val |= SOF_TIMESTAMPING_RAW_HARDWARE;
+
+	if (setsockopt(fd, SOL_SOCKET, SO_TIMESTAMPING, &val, sizeof(val)))
+		error(1, errno, "setsockopt tx timestamping");
+}
+
+static void print_audit_report(unsigned long num_msgs, unsigned long num_sends)
+{
+	unsigned long tdelta;
+
+	tdelta = tend - tstart;
+	if (!tdelta)
+		return;
+
+	fprintf(stderr, "Summary over %lu.%03lu seconds...\n",
+			tdelta / 1000, tdelta % 1000);
+	fprintf(stderr,
+		"sum %s tx: %6lu MB/s %10lu calls (%lu/s) %10lu msgs (%lu/s)\n",
+		cfg_tcp ? "tcp" : "udp",
+		((num_msgs * cfg_payload_len) >> 10) / tdelta,
+		num_sends, num_sends * 1000 / tdelta,
+		num_msgs, num_msgs * 1000 / tdelta);
+
+	if (cfg_tx_tstamp) {
+		if (stat_tx_ts_errors)
+			error(1, 0,
+			      "Expected clean TX Timestamps: %9lu msgs received %6lu errors",
+			      stat_tx_ts, stat_tx_ts_errors);
+		if (stat_tx_ts != num_sends)
+			error(1, 0,
+			      "Unexpected number of TX Timestamps: %9lu expected %9lu received",
+			      num_sends, stat_tx_ts);
+		fprintf(stderr,
+			"Tx Timestamps: %19lu received %17lu errors\n",
+			stat_tx_ts, stat_tx_ts_errors);
+	}
+
+	if (cfg_zerocopy) {
+		if (stat_zcopies != num_sends)
+			error(1, 0, "Unexpected number of Zerocopy completions: %9lu expected %9lu received",
+			      num_sends, stat_zcopies);
+		fprintf(stderr,
+			"Zerocopy acks: %19lu\n",
+			stat_zcopies);
+	}
+}
+
+static void print_report(unsigned long num_msgs, unsigned long num_sends)
+{
+	fprintf(stderr,
+		"%s tx: %6lu MB/s %8lu calls/s %6lu msg/s\n",
+		cfg_tcp ? "tcp" : "udp",
+		(num_msgs * cfg_payload_len) >> 20,
+		num_sends, num_msgs);
+
+	if (cfg_audit) {
+		total_num_msgs += num_msgs;
+		total_num_sends += num_sends;
+	}
+}
+
+int main(int argc, char **argv)
+{
+	unsigned long num_msgs, num_sends;
+	unsigned long tnow, treport, tstop;
+	int fd, i, val, ret;
+
+	parse_opts(argc, argv);
+
+	if (cfg_cpu > 0)
+		set_cpu(cfg_cpu);
+
+	for (i = 0; i < sizeof(buf[0]); i++)
+		buf[0][i] = 'a' + (i % 26);
+	for (i = 1; i < NUM_PKT; i++)
+		memcpy(buf[i], buf[0], sizeof(buf[0]));
+
+	signal(SIGINT, sigint_handler);
+
+	fd = socket(cfg_family, cfg_tcp ? SOCK_STREAM : SOCK_DGRAM, 0);
+	if (fd == -1)
+		error(1, errno, "socket");
+
+	if (cfg_zerocopy) {
+		val = 1;
+
+		ret = setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY,
+				 &val, sizeof(val));
+		if (ret) {
+			if (errno == ENOPROTOOPT || errno == ENOTSUPP) {
+				fprintf(stderr, "SO_ZEROCOPY not supported");
+				exit(KSFT_SKIP);
+			}
+			error(1, errno, "setsockopt zerocopy");
+		}
+	}
+
+	if (cfg_connected &&
+	    connect(fd, (void *)&cfg_dst_addr, cfg_alen))
+		error(1, errno, "connect");
+
+	if (cfg_segment)
+		set_pmtu_discover(fd, cfg_family == PF_INET);
+
+	if (cfg_tx_tstamp)
+		set_tx_timestamping(fd);
+
+	num_msgs = num_sends = 0;
+	tnow = gettimeofday_ms();
+	tstart = tnow;
+	tend = tnow;
+	tstop = tnow + cfg_runtime_ms;
+	treport = tnow + 1000;
+
+	i = 0;
+	do {
+		if (cfg_tcp)
+			num_sends += send_tcp(fd, buf[i]);
+		else if (cfg_segment)
+			num_sends += send_udp_segment(fd, buf[i]);
+		else if (cfg_sendmmsg)
+			num_sends += send_udp_sendmmsg(fd, buf[i]);
+		else
+			num_sends += send_udp(fd, buf[i]);
+		num_msgs++;
+		if ((cfg_zerocopy && ((num_msgs & 0xF) == 0)) || cfg_tx_tstamp)
+			flush_errqueue(fd, cfg_poll, 500, true);
+
+		if (cfg_msg_nr && num_msgs >= cfg_msg_nr)
+			break;
+
+		tnow = gettimeofday_ms();
+		if (tnow >= treport) {
+			print_report(num_msgs, num_sends);
+			num_msgs = num_sends = 0;
+			treport = tnow + 1000;
+		}
+
+		/* cold cache when writing buffer */
+		if (cfg_cache_trash)
+			i = ++i < NUM_PKT ? i : 0;
+
+	} while (!interrupted && (cfg_runtime_ms == -1 || tnow < tstop));
+
+	if (cfg_zerocopy || cfg_tx_tstamp)
+		flush_errqueue_retry(fd, num_sends);
+
+	if (close(fd))
+		error(1, errno, "close");
+
+	if (cfg_audit) {
+		tend = tnow;
+		total_num_msgs += num_msgs;
+		total_num_sends += num_sends;
+		print_audit_report(total_num_msgs, total_num_sends);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/net/unicast_extensions.sh b/tools/testing/selftests/net/unicast_extensions.sh
new file mode 100755
index 000000000000..3e751234ccfe
--- /dev/null
+++ b/tools/testing/selftests/net/unicast_extensions.sh
@@ -0,0 +1,218 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# By Seth Schoen (c) 2021, for the IPv4 Unicast Extensions Project
+# Thanks to David Ahern for help and advice on nettest modifications.
+#
+# Self-tests for IPv4 address extensions: the kernel's ability to accept
+# certain traditionally unused or unallocated IPv4 addresses. For each kind
+# of address, we test for interface assignment, ping, TCP, and forwarding.
+# Must be run as root (to manipulate network namespaces and virtual
+# interfaces).
+#
+# Things we test for here:
+#
+# * Currently the kernel accepts addresses in 0/8 and 240/4 as valid.
+#
+# * Notwithstanding that, 0.0.0.0 and 255.255.255.255 cannot be assigned.
+#
+# * Currently the kernel DOES NOT accept unicast use of the lowest
+#   address in an IPv4 subnet (e.g. 192.168.100.0/32 in 192.168.100.0/24).
+#   This is treated as a second broadcast address, for compatibility
+#   with 4.2BSD (!).
+#
+# * Currently the kernel DOES NOT accept unicast use of any of 127/8.
+#
+# * Currently the kernel DOES NOT accept unicast use of any of 224/4.
+#
+# These tests provide an easy way to flip the expected result of any
+# of these behaviors for testing kernel patches that change them.
+
+source lib.sh
+
+check_gen_prog "nettest"
+
+result=0
+
+hide_output(){ exec 3>&1 4>&2 >/dev/null 2>/dev/null; }
+show_output(){ exec >&3 2>&4; }
+
+show_result(){
+	if [ $1 -eq 0 ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${2}"
+	else
+		printf "TEST: %-60s  [FAIL]\n" "${2}"
+		result=1
+	fi
+}
+
+_do_segmenttest(){
+	# Perform a simple set of link tests between a pair of
+	# IP addresses on a shared (virtual) segment, using
+	# ping and nettest.
+	# foo --- bar
+	# Arguments: ip_a ip_b prefix_length test_description
+	#
+	# Caller must set up $foo_ns and $bar_ns namespaces
+	# containing linked veth devices foo and bar,
+	# respectively.
+
+	ip -n $foo_ns address add $1/$3 dev foo || return 1
+	ip -n $foo_ns link set foo up || return 1
+	ip -n $bar_ns address add $2/$3 dev bar || return 1
+	ip -n $bar_ns link set bar up || return 1
+
+	ip netns exec $foo_ns timeout 2 ping -c 1 $2 || return 1
+	ip netns exec $bar_ns timeout 2 ping -c 1 $1 || return 1
+
+	nettest -B -N $bar_ns -O $foo_ns -r $1 || return 1
+	nettest -B -N $foo_ns -O $bar_ns -r $2 || return 1
+
+	return 0
+}
+
+_do_route_test(){
+	# Perform a simple set of gateway tests.
+	#
+	# [foo] <---> [foo1]-[bar1] <---> [bar]   /prefix
+	#  host          gateway          host
+	#
+	# Arguments: foo_ip foo1_ip bar1_ip bar_ip prefix_len test_description
+	# Displays test result and returns success or failure.
+
+	# Caller must set up $foo_ns, $bar_ns, and $router_ns
+	# containing linked veth devices foo-foo1, bar1-bar
+	# (foo in $foo_ns, foo1 and bar1 in $router_ns, and
+	# bar in $bar_ns).
+
+	ip -n $foo_ns address add $1/$5 dev foo || return 1
+	ip -n $foo_ns link set foo up || return 1
+	ip -n $foo_ns route add default via $2 || return 1
+	ip -n $bar_ns address add $4/$5 dev bar || return 1
+	ip -n $bar_ns link set bar up || return 1
+	ip -n $bar_ns route add default via $3 || return 1
+	ip -n $router_ns address add $2/$5 dev foo1 || return 1
+	ip -n $router_ns link set foo1 up || return 1
+	ip -n $router_ns address add $3/$5 dev bar1 || return 1
+	ip -n $router_ns link set bar1 up || return 1
+
+	echo 1 | ip netns exec $router_ns tee /proc/sys/net/ipv4/ip_forward
+
+	ip netns exec $foo_ns timeout 2 ping -c 1 $2 || return 1
+	ip netns exec $foo_ns timeout 2 ping -c 1 $4 || return 1
+	ip netns exec $bar_ns timeout 2 ping -c 1 $3 || return 1
+	ip netns exec $bar_ns timeout 2 ping -c 1 $1 || return 1
+
+	nettest -B -N $bar_ns -O $foo_ns -r $1 || return 1
+	nettest -B -N $foo_ns -O $bar_ns -r $4 || return 1
+
+	return 0
+}
+
+segmenttest(){
+	# Sets up veth link and tries to connect over it.
+	# Arguments: ip_a ip_b prefix_len test_description
+	hide_output
+	setup_ns foo_ns bar_ns
+	ip link add foo netns $foo_ns type veth peer name bar netns $bar_ns
+
+	test_result=0
+	_do_segmenttest "$@" || test_result=1
+
+	ip netns pids $foo_ns | xargs -r kill -9
+	ip netns pids $bar_ns | xargs -r kill -9
+	cleanup_ns $foo_ns $bar_ns
+	show_output
+
+	# inverted tests will expect failure instead of success
+	[ -n "$expect_failure" ] && test_result=`expr 1 - $test_result`
+
+	show_result $test_result "$4"
+}
+
+route_test(){
+	# Sets up a simple gateway and tries to connect through it.
+	# [foo] <---> [foo1]-[bar1] <---> [bar]   /prefix
+	# Arguments: foo_ip foo1_ip bar1_ip bar_ip prefix_len test_description
+	# Returns success or failure.
+
+	hide_output
+	setup_ns foo_ns bar_ns router_ns
+	ip link add foo netns $foo_ns type veth peer name foo1 netns $router_ns
+	ip link add bar netns $bar_ns type veth peer name bar1 netns $router_ns
+
+	test_result=0
+	_do_route_test "$@" || test_result=1
+
+	ip netns pids $foo_ns | xargs -r kill -9
+	ip netns pids $bar_ns | xargs -r kill -9
+	ip netns pids $router_ns | xargs -r kill -9
+	cleanup_ns $foo_ns $bar_ns $router_ns
+
+	show_output
+
+	# inverted tests will expect failure instead of success
+	[ -n "$expect_failure" ] && test_result=`expr 1 - $test_result`
+	show_result $test_result "$6"
+}
+
+echo "###########################################################################"
+echo "Unicast address extensions tests (behavior of reserved IPv4 addresses)"
+echo "###########################################################################"
+#
+# Test support for 240/4
+segmenttest 240.1.2.1   240.1.2.4    24 "assign and ping within 240/4 (1 of 2) (is allowed)"
+segmenttest 250.100.2.1 250.100.30.4 16 "assign and ping within 240/4 (2 of 2) (is allowed)"
+#
+# Test support for 0/8
+segmenttest 0.1.2.17    0.1.2.23  24 "assign and ping within 0/8 (1 of 2) (is allowed)"
+segmenttest 0.77.240.17 0.77.2.23 16 "assign and ping within 0/8 (2 of 2) (is allowed)"
+#
+# Even 255.255/16 is OK!
+segmenttest 255.255.3.1 255.255.50.77 16 "assign and ping inside 255.255/16 (is allowed)"
+#
+# Or 255.255.255/24
+segmenttest 255.255.255.1 255.255.255.254 24 "assign and ping inside 255.255.255/24 (is allowed)"
+#
+# Routing between different networks
+route_test 240.5.6.7 240.5.6.1  255.1.2.1    255.1.2.3      24 "route between 240.5.6/24 and 255.1.2/24 (is allowed)"
+route_test 0.200.6.7 0.200.38.1 245.99.101.1 245.99.200.111 16 "route between 0.200/16 and 245.99/16 (is allowed)"
+#
+# Test support for lowest address ending in .0
+segmenttest 5.10.15.20 5.10.15.0 24 "assign and ping lowest address (/24)"
+#
+# Test support for lowest address not ending in .0
+segmenttest 192.168.101.192 192.168.101.193 26 "assign and ping lowest address (/26)"
+#
+# Routing using lowest address as a gateway/endpoint
+route_test 192.168.42.1 192.168.42.0 9.8.7.6 9.8.7.0 24 "routing using lowest address"
+#
+# ==============================================
+# ==== TESTS THAT CURRENTLY EXPECT FAILURE =====
+# ==============================================
+expect_failure=true
+# It should still not be possible to use 0.0.0.0 or 255.255.255.255
+# as a unicast address.  Thus, these tests expect failure.
+segmenttest 0.0.1.5       0.0.0.0         16 "assigning 0.0.0.0 (is forbidden)"
+segmenttest 255.255.255.1 255.255.255.255 16 "assigning 255.255.255.255 (is forbidden)"
+#
+# Test support for not having all of 127 be loopback
+# Currently Linux does not allow this, so this should fail too
+segmenttest 127.99.4.5 127.99.4.6 16 "assign and ping inside 127/8 (is forbidden)"
+#
+# Test support for unicast use of class D
+# Currently Linux does not allow this, so this should fail too
+segmenttest 225.1.2.3 225.1.2.200 24 "assign and ping class D address (is forbidden)"
+#
+# Routing using class D as a gateway
+route_test 225.1.42.1 225.1.42.2 9.8.7.6 9.8.7.1 24 "routing using class D (is forbidden)"
+#
+# Routing using 127/8
+# Currently Linux does not allow this, so this should fail too
+route_test 127.99.2.3 127.99.2.4 200.1.2.3 200.1.2.4 24 "routing using 127/8 (is forbidden)"
+#
+unset expect_failure
+# =====================================================
+# ==== END OF TESTS THAT CURRENTLY EXPECT FAILURE =====
+# =====================================================
+exit ${result}
diff --git a/tools/testing/selftests/net/veth.sh b/tools/testing/selftests/net/veth.sh
new file mode 100755
index 000000000000..9709dd067c72
--- /dev/null
+++ b/tools/testing/selftests/net/veth.sh
@@ -0,0 +1,390 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+BPF_FILE="lib/xdp_dummy.bpf.o"
+readonly STATS="$(mktemp -p /tmp ns-XXXXXX)"
+readonly BASE=`basename $STATS`
+readonly SRC=2
+readonly DST=1
+readonly DST_NAT=100
+readonly NS_SRC=$BASE$SRC
+readonly NS_DST=$BASE$DST
+
+# "baremetal" network used for raw UDP traffic
+readonly BM_NET_V4=192.168.1.
+readonly BM_NET_V6=2001:db8::
+
+readonly CPUS=`nproc`
+ret=0
+
+cleanup() {
+	local ns
+	local jobs
+	readonly jobs="$(jobs -p)"
+	[ -n "${jobs}" ] && kill -1 ${jobs} 2>/dev/null
+	rm -f $STATS
+
+	for ns in $NS_SRC $NS_DST; do
+		ip netns del $ns 2>/dev/null
+	done
+}
+
+trap cleanup EXIT
+
+create_ns() {
+	local ns
+
+	for ns in $NS_SRC $NS_DST; do
+		ip netns add $ns
+		ip -n $ns link set dev lo up
+	done
+
+	ip link add name veth$SRC type veth peer name veth$DST
+
+	for ns in $SRC $DST; do
+		ip link set dev veth$ns netns $BASE$ns up
+		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V4$ns/24
+		ip -n $BASE$ns addr add dev veth$ns $BM_NET_V6$ns/64 nodad
+	done
+}
+
+__chk_flag() {
+	local msg="$1"
+	local target=$2
+	local expected=$3
+	local flagname=$4
+
+	local flag=`ip netns exec $BASE$target ethtool -k veth$target |\
+		    grep $flagname | awk '{print $2}'`
+
+	printf "%-60s" "$msg"
+	if [ "$flag" = "$expected" ]; then
+		echo " ok "
+	else
+		echo " fail - expected $expected found $flag"
+		ret=1
+	fi
+}
+
+chk_gro_flag() {
+	__chk_flag "$1" $2 $3 generic-receive-offload
+}
+
+chk_tso_flag() {
+	__chk_flag "$1" $2 $3 tcp-segmentation-offload
+}
+
+chk_channels() {
+	local msg="$1"
+	local target=$2
+	local rx=$3
+	local tx=$4
+
+	local dev=veth$target
+
+	local cur_rx=`ip netns exec $BASE$target ethtool -l $dev |\
+		grep RX: | tail -n 1 | awk '{print $2}' `
+		local cur_tx=`ip netns exec $BASE$target ethtool -l $dev |\
+		grep TX: | tail -n 1 | awk '{print $2}'`
+	local cur_combined=`ip netns exec $BASE$target ethtool -l $dev |\
+		grep Combined: | tail -n 1 | awk '{print $2}'`
+
+	printf "%-60s" "$msg"
+	if [ "$cur_rx" = "$rx" -a "$cur_tx" = "$tx" -a "$cur_combined" = "n/a" ]; then
+		echo " ok "
+	else
+		echo " fail rx:$rx:$cur_rx tx:$tx:$cur_tx combined:n/a:$cur_combined"
+	fi
+}
+
+chk_gro() {
+	local msg="$1"
+	local expected=$2
+
+	ip netns exec $BASE$SRC ping -qc 1 $BM_NET_V4$DST >/dev/null
+	NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat -n
+
+	printf "%-60s" "$msg"
+	ip netns exec $BASE$DST ./udpgso_bench_rx -C 1000 -R 10 &
+	local spid=$!
+	sleep 0.1
+
+	ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 13000 -S 1300 -M 1 -D $BM_NET_V4$DST
+	local retc=$?
+	wait $spid
+	local rets=$?
+	if [ ${rets} -ne 0 ] || [ ${retc} -ne 0 ]; then
+		echo " fail client exit code $retc, server $rets"
+		ret=1
+		return
+	fi
+
+	local pkts=`NSTAT_HISTORY=$STATS ip netns exec $NS_DST nstat IpInReceives | \
+		    awk '{print $2}' | tail -n 1`
+	if [ "$pkts" = "$expected" ]; then
+		echo " ok "
+	else
+		echo " fail - got $pkts packets, expected $expected "
+		ret=1
+	fi
+}
+
+__change_channels()
+{
+	local cur_cpu
+	local end=$1
+	local cur
+	local i
+
+	while true; do
+		printf -v cur '%(%s)T'
+		[ $cur -le $end ] || break
+
+		for i in `seq 1 $CPUS`; do
+			ip netns exec $NS_SRC ethtool -L veth$SRC rx $i tx $i
+			ip netns exec $NS_DST ethtool -L veth$DST rx $i tx $i
+		done
+
+		for i in `seq 1 $((CPUS - 1))`; do
+			cur_cpu=$((CPUS - $i))
+			ip netns exec $NS_SRC ethtool -L veth$SRC rx $cur_cpu tx $cur_cpu
+			ip netns exec $NS_DST ethtool -L veth$DST rx $cur_cpu tx $cur_cpu
+		done
+	done
+}
+
+__send_data() {
+	local end=$1
+
+	while true; do
+		printf -v cur '%(%s)T'
+		[ $cur -le $end ] || break
+
+		ip netns exec $NS_SRC ./udpgso_bench_tx -4 -s 1000 -M 300 -D $BM_NET_V4$DST
+	done
+}
+
+do_stress() {
+	local end
+	printf -v end '%(%s)T'
+	end=$((end + $STRESS))
+
+	ip netns exec $NS_SRC ethtool -L veth$SRC rx 3 tx 3
+	ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
+
+	ip netns exec $NS_DST ./udpgso_bench_rx &
+	local rx_pid=$!
+
+	echo "Running stress test for $STRESS seconds..."
+	__change_channels $end &
+	local ch_pid=$!
+	__send_data $end &
+	local data_pid_1=$!
+	__send_data $end &
+	local data_pid_2=$!
+	__send_data $end &
+	local data_pid_3=$!
+	__send_data $end &
+	local data_pid_4=$!
+
+	wait $ch_pid $data_pid_1 $data_pid_2 $data_pid_3 $data_pid_4
+	kill -9 $rx_pid
+	echo "done"
+
+	# restore previous setting
+	ip netns exec $NS_SRC ethtool -L veth$SRC rx 2 tx 2
+	ip netns exec $NS_DST ethtool -L veth$DST rx 2 tx 1
+}
+
+usage() {
+	echo "Usage: $0 [-h] [-s <seconds>]"
+	echo -e "\t-h: show this help"
+	echo -e "\t-s: run optional stress tests for the given amount of seconds"
+}
+
+STRESS=0
+while getopts "hs:" option; do
+	case "$option" in
+	"h")
+		usage $0
+		exit 0
+		;;
+	"s")
+		STRESS=$OPTARG
+		;;
+	esac
+done
+
+if [ ! -f ${BPF_FILE} ]; then
+	echo "Missing ${BPF_FILE}. Run 'make' first"
+	exit 1
+fi
+
+[ $CPUS -lt 2 ] && echo "Only one CPU available, some tests will be skipped"
+[ $STRESS -gt 0 -a $CPUS -lt 3 ] && echo " stress test will be skipped, too"
+
+create_ns
+chk_gro_flag "default - gro flag" $SRC off
+chk_gro_flag "        - peer gro flag" $DST off
+chk_tso_flag "        - tso flag" $SRC on
+chk_tso_flag "        - peer tso flag" $DST on
+chk_gro "        - aggregation" 1
+ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
+chk_gro "        - aggregation with TSO off" 10
+cleanup
+
+create_ns
+ip netns exec $NS_DST ethtool -K veth$DST gro on
+chk_gro_flag "with gro on - gro flag" $DST on
+chk_gro_flag "        - peer gro flag" $SRC off
+chk_tso_flag "        - tso flag" $SRC on
+chk_tso_flag "        - peer tso flag" $DST on
+ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
+ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+chk_gro "        - aggregation with TSO off" 1
+cleanup
+
+create_ns
+ip -n $NS_DST link set dev veth$DST up
+ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp
+chk_gro_flag "gro vs xdp while down - gro flag off" $DST off
+ip -n $NS_DST link set dev veth$DST down
+chk_gro_flag "                      - after down" $DST off
+ip -n $NS_DST link set dev veth$DST xdp off
+chk_gro_flag "                      - after xdp off" $DST off
+ip -n $NS_DST link set dev veth$DST up
+chk_gro_flag "                      - after up" $DST off
+ip -n $NS_SRC link set dev veth$SRC xdp object ${BPF_FILE} section xdp
+chk_gro_flag "                      - after peer xdp" $DST off
+cleanup
+
+create_ns
+ip -n $NS_DST link set dev veth$DST up
+ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp
+ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+chk_gro_flag "gro vs xdp while down - gro flag on" $DST on
+ip -n $NS_DST link set dev veth$DST down
+chk_gro_flag "                      - after down" $DST on
+ip -n $NS_DST link set dev veth$DST xdp off
+chk_gro_flag "                      - after xdp off" $DST on
+ip -n $NS_DST link set dev veth$DST up
+chk_gro_flag "                      - after up" $DST on
+ip -n $NS_SRC link set dev veth$SRC xdp object ${BPF_FILE} section xdp
+chk_gro_flag "                      - after peer xdp" $DST on
+cleanup
+
+create_ns
+chk_channels "default channels" $DST 1 1
+
+ip -n $NS_DST link set dev veth$DST down
+ip netns exec $NS_DST ethtool -K veth$DST gro on
+chk_gro_flag "with gro enabled on link down - gro flag" $DST on
+chk_gro_flag "        - peer gro flag" $SRC off
+chk_tso_flag "        - tso flag" $SRC on
+chk_tso_flag "        - peer tso flag" $DST on
+ip -n $NS_DST link set dev veth$DST up
+ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
+ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+chk_gro "        - aggregation with TSO off" 1
+cleanup
+
+create_ns
+
+CUR_TX=1
+CUR_RX=1
+if [ $CPUS -gt 1 ]; then
+	ip netns exec $NS_DST ethtool -L veth$DST tx 2
+	chk_channels "setting tx channels" $DST 1 2
+	CUR_TX=2
+fi
+
+if [ $CPUS -gt 2 ]; then
+	ip netns exec $NS_DST ethtool -L veth$DST rx 3 tx 3
+	chk_channels "setting both rx and tx channels" $DST 3 3
+	CUR_RX=3
+	CUR_TX=3
+fi
+
+ip netns exec $NS_DST ethtool -L veth$DST combined 2 2>/dev/null
+chk_channels "bad setting: combined channels" $DST $CUR_RX $CUR_TX
+
+ip netns exec $NS_DST ethtool -L veth$DST tx $((CPUS + 1)) 2>/dev/null
+chk_channels "setting invalid channels nr" $DST $CUR_RX $CUR_TX
+
+if [ $CPUS -gt 1 ]; then
+	# this also tests queues nr reduction
+	ip netns exec $NS_DST ethtool -L veth$DST rx 1 tx 2 2>/dev/null
+	ip netns exec $NS_SRC ethtool -L veth$SRC rx 1 tx 2 2>/dev/null
+	printf "%-60s" "bad setting: XDP with RX nr less than TX"
+	ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
+		section xdp 2>/dev/null &&\
+		echo "fail - set operation successful ?!?" || echo " ok "
+
+	# the following tests will run with multiple channels active
+	ip netns exec $NS_SRC ethtool -L veth$SRC rx 2
+	ip netns exec $NS_DST ethtool -L veth$DST rx 2
+	ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} \
+		section xdp 2>/dev/null
+	printf "%-60s" "bad setting: reducing RX nr below peer TX with XDP set"
+	ip netns exec $NS_DST ethtool -L veth$DST rx 1 2>/dev/null &&\
+		echo "fail - set operation successful ?!?" || echo " ok "
+	CUR_RX=2
+	CUR_TX=2
+fi
+
+if [ $CPUS -gt 2 ]; then
+	printf "%-60s" "bad setting: increasing peer TX nr above RX with XDP set"
+	ip netns exec $NS_SRC ethtool -L veth$SRC tx 3 2>/dev/null &&\
+		echo "fail - set operation successful ?!?" || echo " ok "
+	chk_channels "setting invalid channels nr" $DST 2 2
+fi
+
+ip -n $NS_DST link set dev veth$DST xdp object ${BPF_FILE} section xdp 2>/dev/null
+chk_gro_flag "with xdp attached - gro flag" $DST off
+chk_gro_flag "        - peer gro flag" $SRC off
+chk_tso_flag "        - tso flag" $SRC off
+chk_tso_flag "        - peer tso flag" $DST on
+ip netns exec $NS_DST ethtool -K veth$DST rx-udp-gro-forwarding on
+chk_gro "        - no aggregation" 10
+ip netns exec $NS_DST ethtool -K veth$DST generic-receive-offload on
+chk_gro_flag "        - gro flag with GRO on" $DST on
+chk_gro "        - aggregation" 1
+
+
+ip -n $NS_DST link set dev veth$DST down
+ip -n $NS_SRC link set dev veth$SRC down
+chk_gro_flag "        - after dev off, flag" $DST on
+chk_gro_flag "        - peer flag" $SRC off
+
+ip netns exec $NS_DST ethtool -K veth$DST gro on
+ip -n $NS_DST link set dev veth$DST xdp off
+chk_gro_flag "        - after gro on xdp off, gro flag" $DST on
+chk_gro_flag "        - peer gro flag" $SRC off
+chk_tso_flag "        - tso flag" $SRC on
+chk_tso_flag "        - peer tso flag" $DST on
+
+if [ $CPUS -gt 1 ]; then
+	ip netns exec $NS_DST ethtool -L veth$DST tx 1
+	chk_channels "decreasing tx channels with device down" $DST 2 1
+fi
+
+ip -n $NS_DST link set dev veth$DST up
+ip -n $NS_SRC link set dev veth$SRC up
+chk_gro "        - aggregation" 1
+
+if [ $CPUS -gt 1 ]; then
+	[ $STRESS -gt 0 -a $CPUS -gt 2 ] && do_stress
+
+	ip -n $NS_DST link set dev veth$DST down
+	ip -n $NS_SRC link set dev veth$SRC down
+	ip netns exec $NS_DST ethtool -L veth$DST tx 2
+	chk_channels "increasing tx channels with device down" $DST 2 2
+	ip -n $NS_DST link set dev veth$DST up
+	ip -n $NS_SRC link set dev veth$SRC up
+fi
+
+ip netns exec $NS_DST ethtool -K veth$DST gro off
+ip netns exec $NS_SRC ethtool -K veth$SRC tx-udp-segmentation off
+chk_gro "aggregation again with default and TSO off" 10
+
+exit $ret
diff --git a/tools/testing/selftests/net/vlan_bridge_binding.sh b/tools/testing/selftests/net/vlan_bridge_binding.sh
new file mode 100755
index 000000000000..e8c02c64e03a
--- /dev/null
+++ b/tools/testing/selftests/net/vlan_bridge_binding.sh
@@ -0,0 +1,258 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source lib.sh
+
+ALL_TESTS="
+	test_binding_on
+	test_binding_off
+	test_binding_toggle_on
+	test_binding_toggle_off
+	test_binding_toggle_on_when_upper_down
+	test_binding_toggle_off_when_upper_down
+	test_binding_toggle_on_when_lower_down
+	test_binding_toggle_off_when_lower_down
+"
+
+setup_prepare()
+{
+	local port
+
+	adf_ip_link_add br up type bridge vlan_filtering 1
+
+	for port in d1 d2 d3; do
+		adf_ip_link_add $port type veth peer name r$port
+		adf_ip_link_set_up $port
+		adf_ip_link_set_up r$port
+		adf_ip_link_set_master $port br
+	done
+
+	adf_bridge_vlan_add vid 11 dev br self
+	adf_bridge_vlan_add vid 11 dev d1 master
+
+	adf_bridge_vlan_add vid 12 dev br self
+	adf_bridge_vlan_add vid 12 dev d2 master
+
+	adf_bridge_vlan_add vid 13 dev br self
+	adf_bridge_vlan_add vid 13 dev d1 master
+	adf_bridge_vlan_add vid 13 dev d2 master
+
+	adf_bridge_vlan_add vid 14 dev br self
+	adf_bridge_vlan_add vid 14 dev d1 master
+	adf_bridge_vlan_add vid 14 dev d2 master
+	adf_bridge_vlan_add vid 14 dev d3 master
+}
+
+operstate_is()
+{
+	local dev=$1; shift
+	local expect=$1; shift
+
+	local operstate=$(ip -j link show $dev | jq -r .[].operstate)
+	if [[ $operstate == UP ]]; then
+		operstate=1
+	elif [[ $operstate == DOWN || $operstate == LOWERLAYERDOWN ]]; then
+		operstate=0
+	fi
+	echo -n $operstate
+	[[ $operstate == $expect ]]
+}
+
+check_operstate()
+{
+	local dev=$1; shift
+	local expect=$1; shift
+	local operstate
+
+	operstate=$(busywait 1000 \
+			operstate_is "$dev" "$expect")
+	check_err $? "Got operstate of $operstate, expected $expect"
+}
+
+add_one_vlan()
+{
+	local link=$1; shift
+	local id=$1; shift
+
+	adf_ip_link_add $link.$id link $link type vlan id $id "$@"
+}
+
+add_vlans()
+{
+	add_one_vlan br 11 "$@"
+	add_one_vlan br 12 "$@"
+	add_one_vlan br 13 "$@"
+	add_one_vlan br 14 "$@"
+}
+
+set_vlans()
+{
+	ip link set dev br.11 "$@"
+	ip link set dev br.12 "$@"
+	ip link set dev br.13 "$@"
+	ip link set dev br.14 "$@"
+}
+
+down_netdevs()
+{
+	local dev
+
+	for dev in "$@"; do
+		adf_ip_link_set_down $dev
+	done
+}
+
+check_operstates()
+{
+	local opst_11=$1; shift
+	local opst_12=$1; shift
+	local opst_13=$1; shift
+	local opst_14=$1; shift
+
+	check_operstate br.11 $opst_11
+	check_operstate br.12 $opst_12
+	check_operstate br.13 $opst_13
+	check_operstate br.14 $opst_14
+}
+
+do_test_binding()
+{
+	local inject=$1; shift
+	local what=$1; shift
+	local opsts_d1=$1; shift
+	local opsts_d2=$1; shift
+	local opsts_d12=$1; shift
+	local opsts_d123=$1; shift
+
+	RET=0
+
+	defer_scope_push
+		down_netdevs d1
+		$inject
+		check_operstates $opsts_d1
+	defer_scope_pop
+
+	defer_scope_push
+		down_netdevs d2
+		$inject
+		check_operstates $opsts_d2
+	defer_scope_pop
+
+	defer_scope_push
+		down_netdevs d1 d2
+		$inject
+		check_operstates $opsts_d12
+	defer_scope_pop
+
+	defer_scope_push
+		down_netdevs d1 d2 d3
+		$inject
+		check_operstates $opsts_d123
+	defer_scope_pop
+
+	log_test "Test bridge_binding $what"
+}
+
+do_test_binding_on()
+{
+	local inject=$1; shift
+	local what=$1; shift
+
+	do_test_binding "$inject" "$what"	\
+			"0 1 1 1"		\
+			"1 0 1 1"		\
+			"0 0 0 1"		\
+			"0 0 0 0"
+}
+
+do_test_binding_off()
+{
+	local inject=$1; shift
+	local what=$1; shift
+
+	do_test_binding "$inject" "$what"	\
+			"1 1 1 1"		\
+			"1 1 1 1"		\
+			"1 1 1 1"		\
+			"0 0 0 0"
+}
+
+test_binding_on()
+{
+	add_vlans bridge_binding on
+	set_vlans up
+	do_test_binding_on : "on"
+}
+
+test_binding_off()
+{
+	add_vlans bridge_binding off
+	set_vlans up
+	do_test_binding_off : "off"
+}
+
+test_binding_toggle_on()
+{
+	add_vlans bridge_binding off
+	set_vlans up
+	set_vlans type vlan bridge_binding on
+	do_test_binding_on : "off->on"
+}
+
+test_binding_toggle_off()
+{
+	add_vlans bridge_binding on
+	set_vlans up
+	set_vlans type vlan bridge_binding off
+	do_test_binding_off : "on->off"
+}
+
+adf_set_binding_on()
+{
+	set_vlans type vlan bridge_binding on
+	defer set_vlans type vlan bridge_binding off
+}
+
+adf_set_binding_off()
+{
+	set_vlans type vlan bridge_binding off
+	defer set_vlans type vlan bridge_binding on
+}
+
+test_binding_toggle_on_when_lower_down()
+{
+	add_vlans bridge_binding off
+	set_vlans up
+	do_test_binding_on adf_set_binding_on "off->on when lower down"
+}
+
+test_binding_toggle_off_when_lower_down()
+{
+	add_vlans bridge_binding on
+	set_vlans up
+	do_test_binding_off adf_set_binding_off "on->off when lower down"
+}
+
+test_binding_toggle_on_when_upper_down()
+{
+	add_vlans bridge_binding off
+	set_vlans type vlan bridge_binding on
+	set_vlans up
+	do_test_binding_on : "off->on when upper down"
+}
+
+test_binding_toggle_off_when_upper_down()
+{
+	add_vlans bridge_binding on
+	set_vlans type vlan bridge_binding off
+	set_vlans up
+	do_test_binding_off : "on->off when upper down"
+}
+
+require_command jq
+
+trap defer_scopes_cleanup EXIT
+setup_prepare
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/vlan_hw_filter.sh b/tools/testing/selftests/net/vlan_hw_filter.sh
new file mode 100755
index 000000000000..e195d5cab6f7
--- /dev/null
+++ b/tools/testing/selftests/net/vlan_hw_filter.sh
@@ -0,0 +1,103 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+readonly NETNS="ns-$(mktemp -u XXXXXX)"
+
+ALL_TESTS="
+	test_vlan_filter_check
+	test_vlan0_del_crash_01
+	test_vlan0_del_crash_02
+	test_vlan0_del_crash_03
+	test_vid0_memleak
+"
+
+ret=0
+
+setup() {
+	ip netns add ${NETNS}
+}
+
+cleanup() {
+	ip netns del $NETNS 2>/dev/null
+}
+
+trap cleanup EXIT
+
+fail() {
+	echo "ERROR: ${1:-unexpected return code} (ret: $_)" >&2
+	ret=1
+}
+
+tests_run()
+{
+	local current_test
+	for current_test in ${TESTS:-$ALL_TESTS}; do
+		$current_test
+	done
+}
+
+test_vlan_filter_check() {
+	setup
+	ip netns exec ${NETNS} ip link add bond0 type bond mode 0
+	ip netns exec ${NETNS} ip link add bond_slave_1 type veth peer veth2
+	ip netns exec ${NETNS} ip link set bond_slave_1 master bond0
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
+	ip netns exec ${NETNS} ip link add link bond_slave_1 name bond_slave_1.0 type vlan id 0
+	ip netns exec ${NETNS} ip link add link bond0 name bond0.0 type vlan id 0
+	ip netns exec ${NETNS} ip link set bond_slave_1 nomaster
+	ip netns exec ${NETNS} ip link del veth2 || fail "Please check vlan HW filter function"
+	cleanup
+}
+
+#enable vlan_filter feature of real_dev with vlan0 during running time
+test_vlan0_del_crash_01() {
+	setup
+	ip netns exec ${NETNS} ip link add bond0 type bond mode 0
+	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
+	ip netns exec ${NETNS} ip link set dev bond0 up
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on
+	ip netns exec ${NETNS} ip link set dev bond0 down
+	ip netns exec ${NETNS} ip link set dev bond0 up
+	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"
+	cleanup
+}
+
+#enable vlan_filter feature and add vlan0 for real_dev during running time
+test_vlan0_del_crash_02() {
+	setup
+	ip netns exec ${NETNS} ip link add bond0 type bond mode 0
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
+	ip netns exec ${NETNS} ip link set dev bond0 up
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on
+	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q
+	ip netns exec ${NETNS} ip link set dev bond0 down
+	ip netns exec ${NETNS} ip link set dev bond0 up
+	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"
+	cleanup
+}
+
+#enable vlan_filter feature of real_dev during running time
+#test kernel_bug of vlan unregister
+test_vlan0_del_crash_03() {
+	setup
+	ip netns exec ${NETNS} ip link add bond0 type bond mode 0
+	ip netns exec ${NETNS} ip link add link bond0 name vlan0 type vlan id 0 protocol 802.1q
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
+	ip netns exec ${NETNS} ip link set dev bond0 up
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter on
+	ip netns exec ${NETNS} ip link set dev bond0 down
+	ip netns exec ${NETNS} ip link del vlan0 || fail "Please check vlan HW filter function"
+	cleanup
+}
+
+test_vid0_memleak() {
+	setup
+	ip netns exec ${NETNS} ip link add bond0 up type bond mode 0
+	ip netns exec ${NETNS} ethtool -K bond0 rx-vlan-filter off
+	ip netns exec ${NETNS} ip link del dev bond0 || fail "Please check vlan HW filter function"
+	cleanup
+}
+
+tests_run
+exit $ret
diff --git a/tools/testing/selftests/net/vrf-xfrm-tests.sh b/tools/testing/selftests/net/vrf-xfrm-tests.sh
new file mode 100755
index 000000000000..b64dd891699d
--- /dev/null
+++ b/tools/testing/selftests/net/vrf-xfrm-tests.sh
@@ -0,0 +1,431 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Various combinations of VRF with xfrms and qdisc.
+
+source lib.sh
+PAUSE_ON_FAIL=no
+VERBOSE=0
+ret=0
+
+HOST1_4=192.168.1.1
+HOST2_4=192.168.1.2
+HOST1_6=2001:db8:1::1
+HOST2_6=2001:db8:1::2
+
+XFRM1_4=10.0.1.1
+XFRM2_4=10.0.1.2
+XFRM1_6=fc00:1000::1
+XFRM2_6=fc00:1000::2
+IF_ID=123
+
+VRF=red
+TABLE=300
+
+AUTH_1=0xd94fcfea65fddf21dc6e0d24a0253508
+AUTH_2=0xdc6e0d24a0253508d94fcfea65fddf21
+ENC_1=0xfc46c20f8048be9725930ff3fb07ac2a91f0347dffeacf62
+ENC_2=0x3fb07ac2a91f0347dffeacf62fc46c20f8048be9725930ff
+SPI_1=0x02122b77
+SPI_2=0x2b770212
+
+which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping)
+
+################################################################################
+#
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+run_cmd_host1()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		printf "    COMMAND: $cmd\n"
+	fi
+
+	out=$(eval ip netns exec $host1 $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" ]; then
+		if [ -n "$out" ]; then
+			echo
+			echo "    $out"
+		fi
+		echo
+	fi
+
+	return $rc
+}
+
+################################################################################
+# create namespaces for hosts and sws
+
+create_vrf()
+{
+	local ns=$1
+	local vrf=$2
+	local table=$3
+
+	if [ -n "${ns}" ]; then
+		ns="-netns ${ns}"
+	fi
+
+	ip ${ns} link add ${vrf} type vrf table ${table}
+	ip ${ns} link set ${vrf} up
+	ip ${ns} route add vrf ${vrf} unreachable default metric 8192
+	ip ${ns} -6 route add vrf ${vrf} unreachable default metric 8192
+
+	ip ${ns} addr add 127.0.0.1/8 dev ${vrf}
+	ip ${ns} -6 addr add ::1 dev ${vrf} nodad
+
+	ip ${ns} ru del pref 0
+	ip ${ns} ru add pref 32765 from all lookup local
+	ip ${ns} -6 ru del pref 0
+	ip ${ns} -6 ru add pref 32765 from all lookup local
+}
+
+create_ns()
+{
+	local ns=$1
+	local addr=$2
+	local addr6=$3
+
+	[ -z "${addr}" ] && addr="-"
+	[ -z "${addr6}" ] && addr6="-"
+
+	if [ "${addr}" != "-" ]; then
+		ip -netns ${ns} addr add dev lo ${addr}
+	fi
+	if [ "${addr6}" != "-" ]; then
+		ip -netns ${ns} -6 addr add dev lo ${addr6}
+	fi
+
+	ip -netns ${ns} ro add unreachable default metric 8192
+	ip -netns ${ns} -6 ro add unreachable default metric 8192
+
+	ip netns exec ${ns} sysctl -qw net.ipv4.ip_forward=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.all.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.forwarding=1
+	ip netns exec ${ns} sysctl -qw net.ipv6.conf.default.accept_dad=0
+}
+
+# create veth pair to connect namespaces and apply addresses.
+connect_ns()
+{
+	local ns1=$1
+	local ns1_dev=$2
+	local ns1_addr=$3
+	local ns1_addr6=$4
+	local ns2=$5
+	local ns2_dev=$6
+	local ns2_addr=$7
+	local ns2_addr6=$8
+	local ns1arg
+	local ns2arg
+
+	if [ -n "${ns1}" ]; then
+		ns1arg="-netns ${ns1}"
+	fi
+	if [ -n "${ns2}" ]; then
+		ns2arg="-netns ${ns2}"
+	fi
+
+	ip ${ns1arg} li add ${ns1_dev} type veth peer name tmp
+	ip ${ns1arg} li set ${ns1_dev} up
+	ip ${ns1arg} li set tmp netns ${ns2} name ${ns2_dev}
+	ip ${ns2arg} li set ${ns2_dev} up
+
+	if [ "${ns1_addr}" != "-" ]; then
+		ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr}
+		ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr}
+	fi
+
+	if [ "${ns1_addr6}" != "-" ]; then
+		ip ${ns1arg} addr add dev ${ns1_dev} ${ns1_addr6} nodad
+		ip ${ns2arg} addr add dev ${ns2_dev} ${ns2_addr6} nodad
+	fi
+}
+
+################################################################################
+
+cleanup()
+{
+	cleanup_ns $host1 $host2
+}
+
+setup()
+{
+	setup_ns host1 host2
+	create_ns "$host1"
+	create_ns "$host2"
+
+	connect_ns "$host1" eth0 ${HOST1_4}/24 ${HOST1_6}/64 \
+	           "$host2" eth0 ${HOST2_4}/24 ${HOST2_6}/64
+
+	create_vrf "$host1" ${VRF} ${TABLE}
+	ip -netns $host1 link set dev eth0 master ${VRF}
+}
+
+cleanup_xfrm()
+{
+	for ns in $host1 $host2
+	do
+		for x in state policy
+		do
+			ip -netns ${ns} xfrm ${x} flush
+			ip -6 -netns ${ns} xfrm ${x} flush
+		done
+	done
+}
+
+setup_xfrm()
+{
+	local h1_4=$1
+	local h2_4=$2
+	local h1_6=$3
+	local h2_6=$4
+	local devarg="$5"
+
+	#
+	# policy
+	#
+
+	# host1 - IPv4 out
+	ip -netns $host1 xfrm policy add \
+	  src ${h1_4} dst ${h2_4} ${devarg} dir out \
+	  tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+	# host2 - IPv4 in
+	ip -netns $host2 xfrm policy add \
+	  src ${h1_4} dst ${h2_4} dir in \
+	  tmpl src ${HOST1_4} dst ${HOST2_4} proto esp mode tunnel
+
+	# host1 - IPv4 in
+	ip -netns $host1 xfrm policy add \
+	  src ${h2_4} dst ${h1_4} ${devarg} dir in \
+	  tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+	# host2 - IPv4 out
+	ip -netns $host2 xfrm policy add \
+	  src ${h2_4} dst ${h1_4} dir out \
+	  tmpl src ${HOST2_4} dst ${HOST1_4} proto esp mode tunnel
+
+
+	# host1 - IPv6 out
+	ip -6 -netns $host1 xfrm policy add \
+	  src ${h1_6} dst ${h2_6} ${devarg} dir out \
+	  tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+	# host2 - IPv6 in
+	ip -6 -netns $host2 xfrm policy add \
+	  src ${h1_6} dst ${h2_6} dir in \
+	  tmpl src ${HOST1_6} dst ${HOST2_6} proto esp mode tunnel
+
+	# host1 - IPv6 in
+	ip -6 -netns $host1 xfrm policy add \
+	  src ${h2_6} dst ${h1_6} ${devarg} dir in \
+	  tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+	# host2 - IPv6 out
+	ip -6 -netns $host2 xfrm policy add \
+	  src ${h2_6} dst ${h1_6} dir out \
+	  tmpl src ${HOST2_6} dst ${HOST1_6} proto esp mode tunnel
+
+	#
+	# state
+	#
+	ip -netns $host1 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+	    proto esp spi ${SPI_1} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+	    enc 'cbc(aes)' ${ENC_1} \
+	    sel src ${h1_4} dst ${h2_4} ${devarg}
+
+	ip -netns $host2 xfrm state add src ${HOST1_4} dst ${HOST2_4} \
+	    proto esp spi ${SPI_1} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+	    enc 'cbc(aes)' ${ENC_1} \
+	    sel src ${h1_4} dst ${h2_4}
+
+
+	ip -netns $host1 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+	    proto esp spi ${SPI_2} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+	    enc 'cbc(aes)' ${ENC_2} \
+	    sel src ${h2_4} dst ${h1_4} ${devarg}
+
+	ip -netns $host2 xfrm state add src ${HOST2_4} dst ${HOST1_4} \
+	    proto esp spi ${SPI_2} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+	    enc 'cbc(aes)' ${ENC_2} \
+	    sel src ${h2_4} dst ${h1_4}
+
+
+	ip -6 -netns $host1 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+	    proto esp spi ${SPI_1} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+	    enc 'cbc(aes)' ${ENC_1} \
+	    sel src ${h1_6} dst ${h2_6} ${devarg}
+
+	ip -6 -netns $host2 xfrm state add src ${HOST1_6} dst ${HOST2_6} \
+	    proto esp spi ${SPI_1} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_1} 96 \
+	    enc 'cbc(aes)' ${ENC_1} \
+	    sel src ${h1_6} dst ${h2_6}
+
+
+	ip -6 -netns $host1 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+	    proto esp spi ${SPI_2} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+	    enc 'cbc(aes)' ${ENC_2} \
+	    sel src ${h2_6} dst ${h1_6} ${devarg}
+
+	ip -6 -netns $host2 xfrm state add src ${HOST2_6} dst ${HOST1_6} \
+	    proto esp spi ${SPI_2} reqid 0 mode tunnel \
+	    replay-window 4 replay-oseq 0x4 \
+	    auth-trunc 'hmac(sha1)' ${AUTH_2} 96 \
+	    enc 'cbc(aes)' ${ENC_2} \
+	    sel src ${h2_6} dst ${h1_6}
+}
+
+cleanup_xfrm_dev()
+{
+	ip -netns $host1 li del xfrm0
+	ip -netns $host2 addr del ${XFRM2_4}/24 dev eth0
+	ip -netns $host2 addr del ${XFRM2_6}/64 dev eth0
+}
+
+setup_xfrm_dev()
+{
+	local vrfarg="vrf ${VRF}"
+
+	ip -netns $host1 li add type xfrm dev eth0 if_id ${IF_ID}
+	ip -netns $host1 li set xfrm0 ${vrfarg} up
+	ip -netns $host1 addr add ${XFRM1_4}/24 dev xfrm0
+	ip -netns $host1 addr add ${XFRM1_6}/64 dev xfrm0
+
+	ip -netns $host2 addr add ${XFRM2_4}/24 dev eth0
+	ip -netns $host2 addr add ${XFRM2_6}/64 dev eth0
+
+	setup_xfrm ${XFRM1_4} ${XFRM2_4} ${XFRM1_6} ${XFRM2_6} "if_id ${IF_ID}"
+}
+
+run_tests()
+{
+	cleanup_xfrm
+
+	# no IPsec
+	run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+	log_test $? 0 "IPv4 no xfrm policy"
+	run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+	log_test $? 0 "IPv6 no xfrm policy"
+
+	# xfrm without VRF in sel
+	setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6}
+	run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+	log_test $? 0 "IPv4 xfrm policy based on address"
+	run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+	log_test $? 0 "IPv6 xfrm policy based on address"
+	cleanup_xfrm
+
+	# xfrm with VRF in sel
+	# Known failure: ipv4 resets the flow oif after the lookup. Fix is
+	# not straightforward.
+	# setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev ${VRF}"
+	# run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+	# log_test $? 0 "IPv4 xfrm policy with VRF in selector"
+	run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+	log_test $? 0 "IPv6 xfrm policy with VRF in selector"
+	cleanup_xfrm
+
+	# xfrm with enslaved device in sel
+	# Known failures: combined with the above, __xfrm{4,6}_selector_match
+	# needs to consider both l3mdev and enslaved device index.
+	# setup_xfrm ${HOST1_4} ${HOST2_4} ${HOST1_6} ${HOST2_6} "dev eth0"
+	# run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${HOST2_4}
+	# log_test $? 0 "IPv4 xfrm policy with enslaved device in selector"
+	# run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${HOST2_6}
+	# log_test $? 0 "IPv6 xfrm policy with enslaved device in selector"
+	# cleanup_xfrm
+
+	# xfrm device
+	setup_xfrm_dev
+	run_cmd_host1 ip vrf exec ${VRF} ping -c1 -w1 ${XFRM2_4}
+	log_test $? 0 "IPv4 xfrm policy with xfrm device"
+	run_cmd_host1 ip vrf exec ${VRF} ${ping6} -c1 -w1 ${XFRM2_6}
+	log_test $? 0 "IPv6 xfrm policy with xfrm device"
+	cleanup_xfrm_dev
+}
+
+################################################################################
+# usage
+
+usage()
+{
+        cat <<EOF
+usage: ${0##*/} OPTS
+
+        -p          Pause on fail
+        -v          verbose mode (show commands and output)
+
+done
+EOF
+}
+
+################################################################################
+# main
+
+while getopts :pv o
+do
+	case $o in
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=$(($VERBOSE + 1));;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+cleanup 2>/dev/null
+setup
+
+echo
+echo "No qdisc on VRF device"
+run_tests
+
+run_cmd_host1 tc qdisc add dev ${VRF} root netem delay 100ms
+echo
+echo "netem qdisc on VRF device"
+run_tests
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/vrf_route_leaking.sh b/tools/testing/selftests/net/vrf_route_leaking.sh
new file mode 100755
index 000000000000..ce34cb2e6e0b
--- /dev/null
+++ b/tools/testing/selftests/net/vrf_route_leaking.sh
@@ -0,0 +1,707 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2019 David Ahern <dsahern@gmail.com>. All rights reserved.
+# Copyright (c) 2020 Michael Jeanson <mjeanson@efficios.com>. All rights reserved.
+#
+# Requires CONFIG_NET_VRF, CONFIG_VETH, CONFIG_BRIDGE and CONFIG_NET_NS.
+#
+#
+# Symmetric routing topology
+#
+#                     blue         red
+# +----+              .253 +----+ .253              +----+
+# | h1 |-------------------| r1 |-------------------| h2 |
+# +----+ .1                +----+                .2 +----+
+#         172.16.1/24                  172.16.2/24
+#    2001:db8:16:1/64                  2001:db8:16:2/64
+#
+#
+# Route from h1 to h2 and back goes through r1, incoming vrf blue has a route
+# to the outgoing vrf red for the n2 network and red has a route back to n1.
+# The red VRF interface has a MTU of 1400.
+#
+# The first test sends a ping with a ttl of 1 from h1 to h2 and parses the
+# output of the command to check that a ttl expired error is received.
+#
+# The second test runs traceroute from h1 to h2 and parses the output to check
+# for a hop on r1.
+#
+# The third test sends a ping with a packet size of 1450 from h1 to h2 and
+# parses the output of the command to check that a fragmentation error is
+# received.
+#
+#
+# Asymmetric routing topology
+#
+# This topology represents a customer setup where the issue with icmp errors
+# and VRF route leaking was initialy reported. The MTU test isn't done here
+# because of the lack of a return route in the red VRF.
+#
+#                     blue         red
+#                     .253 +----+ .253
+#                     +----| r1 |----+
+#                     |    +----+    |
+# +----+              |              |              +----+
+# | h1 |--------------+              +--------------| h2 |
+# +----+ .1           |              |           .2 +----+
+#         172.16.1/24 |    +----+    | 172.16.2/24
+#    2001:db8:16:1/64 +----| r2 |----+ 2001:db8:16:2/64
+#                     .254 +----+ .254
+#
+#
+# Route from h1 to h2 goes through r1, incoming vrf blue has a route to the
+# outgoing vrf red for the n2 network but red doesn't have a route back to n1.
+# Route from h2 to h1 goes through r2.
+#
+# The objective is to check that the incoming vrf routing table is selected
+# to send an ICMP error back to the source when the ttl of a packet reaches 1
+# while it is forwarded between different vrfs.
+
+source lib.sh
+VERBOSE=0
+PAUSE_ON_FAIL=no
+DEFAULT_TTYPE=sym
+
+H1_N1=172.16.1.0/24
+H1_N1_6=2001:db8:16:1::/64
+
+H1_N1_IP=172.16.1.1
+R1_N1_IP=172.16.1.253
+R2_N1_IP=172.16.1.254
+
+H1_N1_IP6=2001:db8:16:1::1
+R1_N1_IP6=2001:db8:16:1::253
+R2_N1_IP6=2001:db8:16:1::254
+
+H2_N2=172.16.2.0/24
+H2_N2_6=2001:db8:16:2::/64
+
+H2_N2_IP=172.16.2.2
+R1_N2_IP=172.16.2.253
+R2_N2_IP=172.16.2.254
+
+H2_N2_IP6=2001:db8:16:2::2
+R1_N2_IP6=2001:db8:16:2::253
+R2_N2_IP6=2001:db8:16:2::254
+
+################################################################################
+# helpers
+
+log_section()
+{
+	echo
+	echo "###########################################################################"
+	echo "$*"
+	echo "###########################################################################"
+	echo
+}
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		printf "TEST: %-60s  [ OK ]\n" "${msg}"
+		nsuccess=$((nsuccess+1))
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read -r a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+run_cmd()
+{
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+	fi
+
+	# shellcheck disable=SC2086
+	out=$(eval $cmd 2>&1)
+	rc=$?
+	if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
+		echo "$out"
+	fi
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+run_cmd_grep()
+{
+	local grep_pattern="$1"
+	shift
+	local cmd="$*"
+	local out
+	local rc
+
+	if [ "$VERBOSE" = "1" ]; then
+		echo "COMMAND: $cmd"
+	fi
+
+	# shellcheck disable=SC2086
+	out=$(eval $cmd 2>&1)
+	if [ "$VERBOSE" = "1" ] && [ -n "$out" ]; then
+		echo "$out"
+	fi
+
+	echo "$out" | grep -q "$grep_pattern"
+	rc=$?
+
+	[ "$VERBOSE" = "1" ] && echo
+
+	return $rc
+}
+
+################################################################################
+# setup and teardown
+
+cleanup()
+{
+	cleanup_ns $h1 $h2 $r1 $r2
+}
+
+setup_vrf()
+{
+	local ns=$1
+
+	ip -netns "${ns}" rule del pref 0
+	ip -netns "${ns}" rule add pref 32765 from all lookup local
+	ip -netns "${ns}" -6 rule del pref 0
+	ip -netns "${ns}" -6 rule add pref 32765 from all lookup local
+}
+
+create_vrf()
+{
+	local ns=$1
+	local vrf=$2
+	local table=$3
+
+	ip -netns "${ns}" link add "${vrf}" type vrf table "${table}"
+	ip -netns "${ns}" link set "${vrf}" up
+	ip -netns "${ns}" route add vrf "${vrf}" unreachable default metric 8192
+	ip -netns "${ns}" -6 route add vrf "${vrf}" unreachable default metric 8192
+
+	ip -netns "${ns}" addr add 127.0.0.1/8 dev "${vrf}"
+	ip -netns "${ns}" -6 addr add ::1 dev "${vrf}" nodad
+}
+
+setup_sym()
+{
+	local ns
+
+	# make sure we are starting with a clean slate
+	cleanup
+
+	#
+	# create nodes as namespaces
+	setup_ns h1 h2 r1
+	for ns in $h1 $h2 $r1; do
+		if echo $ns | grep -q h[12]-; then
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+		else
+			ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+		fi
+	done
+
+	#
+	# create interconnects
+	#
+	ip -netns $h1 link add eth0 type veth peer name r1h1
+	ip -netns $h1 link set r1h1 netns $r1 name eth0 up
+
+	ip -netns $h2 link add eth0 type veth peer name r1h2
+	ip -netns $h2 link set r1h2 netns $r1 name eth1 up
+
+	#
+	# h1
+	#
+	ip -netns $h1 addr add dev eth0 ${H1_N1_IP}/24
+	ip -netns $h1 -6 addr add dev eth0 ${H1_N1_IP6}/64 nodad
+	ip -netns $h1 link set eth0 up
+
+	# h1 to h2 via r1
+	ip -netns $h1    route add ${H2_N2} via ${R1_N1_IP} dev eth0
+	ip -netns $h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev eth0
+
+	#
+	# h2
+	#
+	ip -netns $h2 addr add dev eth0 ${H2_N2_IP}/24
+	ip -netns $h2 -6 addr add dev eth0 ${H2_N2_IP6}/64 nodad
+	ip -netns $h2 link set eth0 up
+
+	# h2 to h1 via r1
+	ip -netns $h2 route add default via ${R1_N2_IP} dev eth0
+	ip -netns $h2 -6 route add default via ${R1_N2_IP6} dev eth0
+
+	#
+	# r1
+	#
+	setup_vrf $r1
+	create_vrf $r1 blue 1101
+	create_vrf $r1 red 1102
+	ip -netns $r1 link set mtu 1400 dev eth1
+	ip -netns $r1 link set eth0 vrf blue up
+	ip -netns $r1 link set eth1 vrf red up
+	ip -netns $r1 addr add dev eth0 ${R1_N1_IP}/24
+	ip -netns $r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+	ip -netns $r1 addr add dev eth1 ${R1_N2_IP}/24
+	ip -netns $r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
+
+	# Route leak from blue to red
+	ip -netns $r1 route add vrf blue ${H2_N2} dev red
+	ip -netns $r1 -6 route add vrf blue ${H2_N2_6} dev red
+
+	# Route leak from red to blue
+	ip -netns $r1 route add vrf red ${H1_N1} dev blue
+	ip -netns $r1 -6 route add vrf red ${H1_N1_6} dev blue
+
+
+	# Wait for ip config to settle
+	slowwait 5 ip netns exec $h1 "${ping6}" -c1 -w1 ${H2_N2_IP6} >/dev/null 2>&1
+}
+
+setup_asym()
+{
+	local ns
+
+	# make sure we are starting with a clean slate
+	cleanup
+
+	#
+	# create nodes as namespaces
+	setup_ns h1 h2 r1 r2
+	for ns in $h1 $h2 $r1 $r2; do
+		if echo $ns | grep -q h[12]-; then
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=0
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.keep_addr_on_down=1
+		else
+			ip netns exec $ns sysctl -q -w net.ipv4.ip_forward=1
+			ip netns exec $ns sysctl -q -w net.ipv6.conf.all.forwarding=1
+		fi
+	done
+
+	#
+	# create interconnects
+	#
+	ip -netns $h1 link add eth0 type veth peer name r1h1
+	ip -netns $h1 link set r1h1 netns $r1 name eth0 up
+
+	ip -netns $h1 link add eth1 type veth peer name r2h1
+	ip -netns $h1 link set r2h1 netns $r2 name eth0 up
+
+	ip -netns $h2 link add eth0 type veth peer name r1h2
+	ip -netns $h2 link set r1h2 netns $r1 name eth1 up
+
+	ip -netns $h2 link add eth1 type veth peer name r2h2
+	ip -netns $h2 link set r2h2 netns $r2 name eth1 up
+
+	#
+	# h1
+	#
+	ip -netns $h1 link add br0 type bridge
+	ip -netns $h1 link set br0 up
+	ip -netns $h1 addr add dev br0 ${H1_N1_IP}/24
+	ip -netns $h1 -6 addr add dev br0 ${H1_N1_IP6}/64 nodad
+	ip -netns $h1 link set eth0 master br0 up
+	ip -netns $h1 link set eth1 master br0 up
+
+	# h1 to h2 via r1
+	ip -netns $h1    route add ${H2_N2} via ${R1_N1_IP} dev br0
+	ip -netns $h1 -6 route add ${H2_N2_6} via "${R1_N1_IP6}" dev br0
+
+	#
+	# h2
+	#
+	ip -netns $h2 link add br0 type bridge
+	ip -netns $h2 link set br0 up
+	ip -netns $h2 addr add dev br0 ${H2_N2_IP}/24
+	ip -netns $h2 -6 addr add dev br0 ${H2_N2_IP6}/64 nodad
+	ip -netns $h2 link set eth0 master br0 up
+	ip -netns $h2 link set eth1 master br0 up
+
+	# h2 to h1 via r2
+	ip -netns $h2 route add default via ${R2_N2_IP} dev br0
+	ip -netns $h2 -6 route add default via ${R2_N2_IP6} dev br0
+
+	#
+	# r1
+	#
+	setup_vrf $r1
+	create_vrf $r1 blue 1101
+	create_vrf $r1 red 1102
+	ip -netns $r1 link set mtu 1400 dev eth1
+	ip -netns $r1 link set eth0 vrf blue up
+	ip -netns $r1 link set eth1 vrf red up
+	ip -netns $r1 addr add dev eth0 ${R1_N1_IP}/24
+	ip -netns $r1 -6 addr add dev eth0 ${R1_N1_IP6}/64 nodad
+	ip -netns $r1 addr add dev eth1 ${R1_N2_IP}/24
+	ip -netns $r1 -6 addr add dev eth1 ${R1_N2_IP6}/64 nodad
+
+	# Route leak from blue to red
+	ip -netns $r1 route add vrf blue ${H2_N2} dev red
+	ip -netns $r1 -6 route add vrf blue ${H2_N2_6} dev red
+
+	# No route leak from red to blue
+
+	#
+	# r2
+	#
+	ip -netns $r2 addr add dev eth0 ${R2_N1_IP}/24
+	ip -netns $r2 -6 addr add dev eth0 ${R2_N1_IP6}/64 nodad
+	ip -netns $r2 addr add dev eth1 ${R2_N2_IP}/24
+	ip -netns $r2 -6 addr add dev eth1 ${R2_N2_IP6}/64 nodad
+
+	# Wait for ip config to settle
+	slowwait 5 ip netns exec $h1 "${ping6}" -c1 -w1 ${H2_N2_IP6} >/dev/null 2>&1
+}
+
+check_connectivity()
+{
+	ip netns exec $h1 ping -c1 -w1 ${H2_N2_IP} >/dev/null 2>&1
+	log_test $? 0 "Basic IPv4 connectivity"
+	return $?
+}
+
+check_connectivity6()
+{
+	ip netns exec $h1 "${ping6}" -c1 -w1 ${H2_N2_IP6} >/dev/null 2>&1
+	log_test $? 0 "Basic IPv6 connectivity"
+	return $?
+}
+
+check_traceroute()
+{
+	if [ ! -x "$(command -v traceroute)" ]; then
+		echo "SKIP: Could not run IPV4 test without traceroute"
+		return 1
+	fi
+}
+
+check_traceroute6()
+{
+	if [ ! -x "$(command -v traceroute6)" ]; then
+		echo "SKIP: Could not run IPV6 test without traceroute6"
+		return 1
+	fi
+}
+
+ipv4_traceroute()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv4 ($ttype route): VRF ICMP error route lookup traceroute"
+
+	check_traceroute || return
+
+	setup_"$ttype"
+
+	check_connectivity || return
+
+	run_cmd_grep "${R1_N1_IP}" ip netns exec $h1 traceroute ${H2_N2_IP}
+	log_test $? 0 "Traceroute reports a hop on r1"
+}
+
+ipv4_traceroute_asym()
+{
+	ipv4_traceroute asym
+}
+
+ipv6_traceroute()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv6 ($ttype route): VRF ICMP error route lookup traceroute"
+
+	check_traceroute6 || return
+
+	setup_"$ttype"
+
+	check_connectivity6 || return
+
+	run_cmd_grep "${R1_N1_IP6}" ip netns exec $h1 traceroute6 ${H2_N2_IP6}
+	log_test $? 0 "Traceroute6 reports a hop on r1"
+}
+
+ipv6_traceroute_asym()
+{
+	ipv6_traceroute asym
+}
+
+ipv4_ping_ttl()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv4 ($ttype route): VRF ICMP ttl error route lookup ping"
+
+	setup_"$ttype"
+
+	check_connectivity || return
+
+	run_cmd_grep "Time to live exceeded" ip netns exec $h1 ping -t1 -c1 -W2 ${H2_N2_IP}
+	log_test $? 0 "Ping received ICMP ttl exceeded"
+}
+
+ipv4_ping_ttl_asym()
+{
+	ipv4_ping_ttl asym
+}
+
+ipv4_ping_frag()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv4 ($ttype route): VRF ICMP fragmentation error route lookup ping"
+
+	setup_"$ttype"
+
+	check_connectivity || return
+
+	run_cmd_grep "Frag needed" ip netns exec $h1 ping -s 1450 -Mdo -c1 -W2 ${H2_N2_IP}
+	log_test $? 0 "Ping received ICMP Frag needed"
+}
+
+ipv4_ping_frag_asym()
+{
+	ipv4_ping_frag asym
+}
+
+ipv6_ping_ttl()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv6 ($ttype route): VRF ICMP ttl error route lookup ping"
+
+	setup_"$ttype"
+
+	check_connectivity6 || return
+
+	run_cmd_grep "Time exceeded: Hop limit" ip netns exec $h1 "${ping6}" -t1 -c1 -W2 ${H2_N2_IP6}
+	log_test $? 0 "Ping received ICMP Hop limit"
+}
+
+ipv6_ping_ttl_asym()
+{
+	ipv6_ping_ttl asym
+}
+
+ipv6_ping_frag()
+{
+	local ttype="$1"
+
+	[ "x$ttype" = "x" ] && ttype="$DEFAULT_TTYPE"
+
+	log_section "IPv6 ($ttype route): VRF ICMP fragmentation error route lookup ping"
+
+	setup_"$ttype"
+
+	check_connectivity6 || return
+
+	run_cmd_grep "Packet too big" ip netns exec $h1 "${ping6}" -s 1450 -Mdo -c1 -W2 ${H2_N2_IP6}
+	log_test $? 0 "Ping received ICMP Packet too big"
+}
+
+ipv6_ping_frag_asym()
+{
+	ipv6_ping_frag asym
+}
+
+ipv4_ping_local()
+{
+	log_section "IPv4 (sym route): VRF ICMP local error route lookup ping"
+
+	setup_sym
+
+	check_connectivity || return
+
+	run_cmd ip netns exec $r1 ip vrf exec blue ping -c1 -w1 ${H2_N2_IP}
+	log_test $? 0 "VRF ICMP local IPv4"
+}
+
+ipv4_tcp_local()
+{
+	log_section "IPv4 (sym route): VRF tcp local connection"
+
+	setup_sym
+
+	check_connectivity || return
+
+	run_cmd nettest -s -O "$h2" -l ${H2_N2_IP} -I eth0 -3 eth0 &
+	sleep 1
+	run_cmd nettest -N "$r1" -d blue -r ${H2_N2_IP}
+	log_test $? 0 "VRF tcp local connection IPv4"
+}
+
+ipv4_udp_local()
+{
+	log_section "IPv4 (sym route): VRF udp local connection"
+
+	setup_sym
+
+	check_connectivity || return
+
+	run_cmd nettest -s -D -O "$h2" -l ${H2_N2_IP} -I eth0 -3 eth0 &
+	sleep 1
+	run_cmd nettest -D -N "$r1" -d blue -r ${H2_N2_IP}
+	log_test $? 0 "VRF udp local connection IPv4"
+}
+
+ipv6_ping_local()
+{
+	log_section "IPv6 (sym route): VRF ICMP local error route lookup ping"
+
+	setup_sym
+
+	check_connectivity6 || return
+
+	run_cmd ip netns exec $r1 ip vrf exec blue ${ping6} -c1 -w1 ${H2_N2_IP6}
+	log_test $? 0 "VRF ICMP local IPv6"
+}
+
+ipv6_tcp_local()
+{
+	log_section "IPv6 (sym route): VRF tcp local connection"
+
+	setup_sym
+
+	check_connectivity6 || return
+
+	run_cmd nettest -s -6 -O "$h2" -l ${H2_N2_IP6} -I eth0 -3 eth0 &
+	sleep 1
+	run_cmd nettest -6 -N "$r1" -d blue -r ${H2_N2_IP6}
+	log_test $? 0 "VRF tcp local connection IPv6"
+}
+
+ipv6_udp_local()
+{
+	log_section "IPv6 (sym route): VRF udp local connection"
+
+	setup_sym
+
+	check_connectivity6 || return
+
+	run_cmd nettest -s -6 -D -O "$h2" -l ${H2_N2_IP6} -I eth0 -3 eth0 &
+	sleep 1
+	run_cmd nettest -6 -D -N "$r1" -d blue -r ${H2_N2_IP6}
+	log_test $? 0 "VRF udp local connection IPv6"
+}
+
+################################################################################
+# usage
+
+usage()
+{
+        cat <<EOF
+usage: ${0##*/} OPTS
+
+	-4          Run IPv4 tests only
+	-6          Run IPv6 tests only
+        -t TEST     Run only TEST
+	-p          Pause on fail
+	-v          verbose mode (show commands and output)
+EOF
+}
+
+################################################################################
+# main
+
+# Some systems don't have a ping6 binary anymore
+command -v ping6 > /dev/null 2>&1 && ping6=$(command -v ping6) || ping6=$(command -v ping)
+
+check_gen_prog "nettest"
+
+TESTS_IPV4="ipv4_ping_ttl ipv4_traceroute ipv4_ping_frag ipv4_ping_local ipv4_tcp_local
+ipv4_udp_local ipv4_ping_ttl_asym ipv4_traceroute_asym"
+TESTS_IPV6="ipv6_ping_ttl ipv6_traceroute ipv6_ping_local ipv6_tcp_local ipv6_udp_local
+ipv6_ping_ttl_asym ipv6_traceroute_asym"
+
+ret=0
+nsuccess=0
+nfail=0
+
+while getopts :46t:pvh o
+do
+	case $o in
+		4) TESTS=ipv4;;
+		6) TESTS=ipv6;;
+		t) TESTS=$OPTARG;;
+		p) PAUSE_ON_FAIL=yes;;
+		v) VERBOSE=1;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+#
+# show user test config
+#
+if [ -z "$TESTS" ]; then
+        TESTS="$TESTS_IPV4 $TESTS_IPV6"
+elif [ "$TESTS" = "ipv4" ]; then
+        TESTS="$TESTS_IPV4"
+elif [ "$TESTS" = "ipv6" ]; then
+        TESTS="$TESTS_IPV6"
+fi
+
+for t in $TESTS
+do
+	case $t in
+	ipv4_ping_ttl|ping)              ipv4_ping_ttl;;&
+	ipv4_ping_ttl_asym|ping)         ipv4_ping_ttl_asym;;&
+	ipv4_traceroute|traceroute)      ipv4_traceroute;;&
+	ipv4_traceroute_asym|traceroute) ipv4_traceroute_asym;;&
+	ipv4_ping_frag|ping)             ipv4_ping_frag;;&
+	ipv4_ping_local|ping)            ipv4_ping_local;;&
+	ipv4_tcp_local)                  ipv4_tcp_local;;&
+	ipv4_udp_local)                  ipv4_udp_local;;&
+
+	ipv6_ping_ttl|ping)              ipv6_ping_ttl;;&
+	ipv6_ping_ttl_asym|ping)         ipv6_ping_ttl_asym;;&
+	ipv6_traceroute|traceroute)      ipv6_traceroute;;&
+	ipv6_traceroute_asym|traceroute) ipv6_traceroute_asym;;&
+	ipv6_ping_frag|ping)             ipv6_ping_frag;;&
+	ipv6_ping_local|ping)            ipv6_ping_local;;&
+	ipv6_tcp_local)                  ipv6_tcp_local;;&
+	ipv6_udp_local)                  ipv6_udp_local;;&
+
+	# setup namespaces and config, but do not run any tests
+	setup_sym|setup)                 setup_sym; exit 0;;
+	setup_asym)                      setup_asym; exit 0;;
+
+	help)                       echo "Test names: $TESTS"; exit 0;;
+	esac
+done
+
+cleanup
+
+printf "\nTests passed: %3d\n" ${nsuccess}
+printf "Tests failed: %3d\n"   ${nfail}
+
+exit $ret
diff --git a/tools/testing/selftests/net/vrf_strict_mode_test.sh b/tools/testing/selftests/net/vrf_strict_mode_test.sh
new file mode 100755
index 000000000000..01552b542544
--- /dev/null
+++ b/tools/testing/selftests/net/vrf_strict_mode_test.sh
@@ -0,0 +1,426 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test is designed for testing the new VRF strict_mode functionality.
+
+source lib.sh
+ret=0
+
+# identifies the "init" network namespace which is often called root network
+# namespace.
+INIT_NETNS_NAME="init"
+
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+TESTS="init testns mix"
+
+log_test()
+{
+	local rc=$1
+	local expected=$2
+	local msg="$3"
+
+	if [ ${rc} -eq ${expected} ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	if [ "$TESTS" != "none" ]; then
+		printf "\nTests passed: %3d\n" ${nsuccess}
+		printf "Tests failed: %3d\n"   ${nfail}
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+ip_expand_args()
+{
+	local nsname=$1
+	local nsarg=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		nsarg="-netns ${nsname}"
+	fi
+
+	echo "${nsarg}"
+}
+
+vrf_count()
+{
+	local nsname=$1
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} -o link show type vrf | wc -l
+}
+
+count_vrf_by_table_id()
+{
+	local nsname=$1
+	local tableid=$2
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} -d -o link show type vrf | grep "table ${tableid}" | wc -l
+}
+
+add_vrf()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link add ${vrfname} type vrf table ${vrftable} &>/dev/null
+}
+
+add_vrf_and_check()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local cnt
+	local rc
+
+	add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+	cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+	log_test ${rc} 0 "${nsname}: add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+add_vrf_and_check_fail()
+{
+	local nsname=$1
+	local vrfname=$2
+	local vrftable=$3
+	local cnt
+	local rc
+
+	add_vrf ${nsname} ${vrfname} ${vrftable}; rc=$?
+
+	cnt=$(count_vrf_by_table_id ${nsname} ${vrftable})
+
+	log_test ${rc} 2 "${nsname}: CANNOT add vrf ${vrfname}, ${cnt} vrfs for table ${vrftable}"
+}
+
+del_vrf_and_check()
+{
+	local nsname=$1
+	local vrfname=$2
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link del ${vrfname}
+	log_test $? 0 "${nsname}: remove vrf ${vrfname}"
+}
+
+config_vrf_and_check()
+{
+	local nsname=$1
+	local addr=$2
+	local vrfname=$3
+	local nsarg="$(ip_expand_args ${nsname})"
+
+	ip ${nsarg} link set dev ${vrfname} up && \
+		ip ${nsarg} addr add ${addr} dev ${vrfname}
+	log_test $? 0 "${nsname}: vrf ${vrfname} up, addr ${addr}"
+}
+
+read_strict_mode()
+{
+	local nsname=$1
+	local rval
+	local rc=0
+	local nsexec=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		# a custom network namespace is provided
+		nsexec="ip netns exec ${nsname}"
+	fi
+
+	rval="$(${nsexec} bash -c "cat /proc/sys/net/vrf/strict_mode" | \
+		grep -E "^[0-1]$")" &> /dev/null
+	if [ $? -ne 0 ]; then
+		# set errors
+		rval=255
+		rc=1
+	fi
+
+	# on success, rval can be only 0 or 1; on error, rval is equal to 255
+	echo ${rval}
+	return ${rc}
+}
+
+read_strict_mode_compare_and_check()
+{
+	local nsname=$1
+	local expected=$2
+	local res
+
+	res="$(read_strict_mode ${nsname})"
+	log_test ${res} ${expected} "${nsname}: check strict_mode=${res}"
+}
+
+set_strict_mode()
+{
+	local nsname=$1
+	local val=$2
+	local nsexec=""
+
+	if [ "${nsname}" != "${INIT_NETNS_NAME}" ]; then
+		# a custom network namespace is provided
+		nsexec="ip netns exec ${nsname}"
+	fi
+
+	${nsexec} bash -c "echo ${val} >/proc/sys/net/vrf/strict_mode" &>/dev/null
+}
+
+enable_strict_mode()
+{
+	local nsname=$1
+
+	set_strict_mode ${nsname} 1
+}
+
+disable_strict_mode()
+{
+	local nsname=$1
+
+	set_strict_mode ${nsname} 0
+}
+
+disable_strict_mode_and_check()
+{
+	local nsname=$1
+
+	disable_strict_mode ${nsname}
+	log_test $? 0 "${nsname}: disable strict_mode (=0)"
+}
+
+enable_strict_mode_and_check()
+{
+	local nsname=$1
+
+	enable_strict_mode ${nsname}
+	log_test $? 0 "${nsname}: enable strict_mode (=1)"
+}
+
+enable_strict_mode_and_check_fail()
+{
+	local nsname=$1
+
+	enable_strict_mode ${nsname}
+	log_test $? 1 "${nsname}: CANNOT enable strict_mode"
+}
+
+strict_mode_check_default()
+{
+	local nsname=$1
+	local strictmode
+	local vrfcnt
+
+	vrfcnt=$(vrf_count ${nsname})
+	strictmode=$(read_strict_mode ${nsname})
+	log_test ${strictmode} 0 "${nsname}: strict_mode=0 by default, ${vrfcnt} vrfs"
+}
+
+setup()
+{
+	modprobe vrf
+
+	setup_ns testns
+}
+
+cleanup()
+{
+	ip netns del $testns 2>/dev/null
+
+	ip link del vrf100 2>/dev/null
+	ip link del vrf101 2>/dev/null
+	ip link del vrf102 2>/dev/null
+
+	echo 0 >/proc/sys/net/vrf/strict_mode 2>/dev/null
+}
+
+vrf_strict_mode_tests_init()
+{
+	log_section "VRF strict_mode test on init network namespace"
+
+	vrf_strict_mode_check_support init
+
+	strict_mode_check_default init
+
+	add_vrf_and_check init vrf100 100
+	config_vrf_and_check init 172.16.100.1/24 vrf100
+
+	enable_strict_mode_and_check init
+
+	add_vrf_and_check_fail init vrf101 100
+
+	disable_strict_mode_and_check init
+
+	add_vrf_and_check init vrf101 100
+	config_vrf_and_check init 172.16.101.1/24 vrf101
+
+	enable_strict_mode_and_check_fail init
+
+	del_vrf_and_check init vrf101
+
+	enable_strict_mode_and_check init
+
+	add_vrf_and_check init vrf102 102
+	config_vrf_and_check init 172.16.102.1/24 vrf102
+
+	# the strict_modle is enabled in the init
+}
+
+vrf_strict_mode_tests_testns()
+{
+	log_section "VRF strict_mode test on testns network namespace"
+
+	vrf_strict_mode_check_support $testns
+
+	strict_mode_check_default $testns
+
+	enable_strict_mode_and_check $testns
+
+	add_vrf_and_check $testns vrf100 100
+	config_vrf_and_check $testns 10.0.100.1/24 vrf100
+
+	add_vrf_and_check_fail $testns vrf101 100
+
+	add_vrf_and_check_fail $testns vrf102 100
+
+	add_vrf_and_check $testns vrf200 200
+
+	disable_strict_mode_and_check $testns
+
+	add_vrf_and_check $testns vrf101 100
+
+	add_vrf_and_check $testns vrf102 100
+
+	#the strict_mode is disabled in the $testns
+}
+
+vrf_strict_mode_tests_mix()
+{
+	log_section "VRF strict_mode test mixing init and testns network namespaces"
+
+	read_strict_mode_compare_and_check init 1
+
+	read_strict_mode_compare_and_check $testns 0
+
+	del_vrf_and_check $testns vrf101
+
+	del_vrf_and_check $testns vrf102
+
+	disable_strict_mode_and_check init
+
+	enable_strict_mode_and_check $testns
+
+	enable_strict_mode_and_check init
+	enable_strict_mode_and_check init
+
+	disable_strict_mode_and_check $testns
+	disable_strict_mode_and_check $testns
+
+	read_strict_mode_compare_and_check init 1
+
+	read_strict_mode_compare_and_check $testns 0
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+	-t <test>	Test(s) to run (default: all)
+			(options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+vrf_strict_mode_check_support()
+{
+	local nsname=$1
+	local output
+	local rc
+
+	output="$(lsmod | grep '^vrf' | awk '{print $1}')"
+	if [ -z "${output}" ]; then
+		modinfo vrf || return $?
+	fi
+
+	# we do not care about the value of the strict_mode; we only check if
+	# the strict_mode parameter is available or not.
+	read_strict_mode ${nsname} &>/dev/null; rc=$?
+	log_test ${rc} 0 "${nsname}: net.vrf.strict_mode is available"
+
+	return ${rc}
+}
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+modprobe vrf &>/dev/null
+if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+	echo "SKIP: vrf sysctl does not exist"
+	exit $ksft_skip
+fi
+
+cleanup &> /dev/null
+
+setup
+for t in $TESTS
+do
+	case $t in
+	vrf_strict_mode_tests_init|init) vrf_strict_mode_tests_init;;
+	vrf_strict_mode_tests_testns|testns) vrf_strict_mode_tests_testns;;
+	vrf_strict_mode_tests_mix|mix) vrf_strict_mode_tests_mix;;
+
+	help) echo "Test names: $TESTS"; exit 0;;
+
+	esac
+done
+cleanup
+
+print_log_test_results
+
+exit $ret
diff --git a/tools/testing/selftests/net/xfrm_policy.sh b/tools/testing/selftests/net/xfrm_policy.sh
new file mode 100755
index 000000000000..3eeeeffb4005
--- /dev/null
+++ b/tools/testing/selftests/net/xfrm_policy.sh
@@ -0,0 +1,486 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Check xfrm policy resolution.  Topology:
+#
+# 1.2   1.1   3.1  3.10    2.1   2.2
+# eth1  eth1 veth0 veth0 eth1   eth1
+# ns1 ---- ns3 ----- ns4 ---- ns2
+#
+# ns3 and ns4 are connected via ipsec tunnel.
+# pings from ns1 to ns2 (and vice versa) are supposed to work like this:
+# ns1: ping 10.0.2.2: passes via ipsec tunnel.
+# ns2: ping 10.0.1.2: passes via ipsec tunnel.
+
+# ns1: ping 10.0.1.253: passes via ipsec tunnel (direct policy)
+# ns2: ping 10.0.2.253: passes via ipsec tunnel (direct policy)
+#
+# ns1: ping 10.0.2.254: does NOT pass via ipsec tunnel (exception)
+# ns2: ping 10.0.1.254: does NOT pass via ipsec tunnel (exception)
+
+source lib.sh
+ret=0
+policy_checks_ok=1
+
+KEY_SHA=0xdeadbeef1234567890abcdefabcdefabcdefabcd
+KEY_AES=0x0123456789abcdef0123456789012345
+SPI1=0x1
+SPI2=0x2
+
+do_esp_policy() {
+    local ns=$1
+    local me=$2
+    local remote=$3
+    local lnet=$4
+    local rnet=$5
+
+    # to encrypt packets as they go out (includes forwarded packets that need encapsulation)
+    ip -net $ns xfrm policy add src $lnet dst $rnet dir out tmpl src $me dst $remote proto esp mode tunnel priority 100 action allow
+    # to fwd decrypted packets after esp processing:
+    ip -net $ns xfrm policy add src $rnet dst $lnet dir fwd tmpl src $remote dst $me proto esp mode tunnel priority 100 action allow
+}
+
+do_esp() {
+    local ns=$1
+    local me=$2
+    local remote=$3
+    local lnet=$4
+    local rnet=$5
+    local spi_out=$6
+    local spi_in=$7
+
+    ip -net $ns xfrm state add src $remote dst $me proto esp spi $spi_in  enc aes $KEY_AES  auth sha1 $KEY_SHA  mode tunnel sel src $rnet dst $lnet
+    ip -net $ns xfrm state add src $me  dst $remote proto esp spi $spi_out enc aes $KEY_AES auth sha1 $KEY_SHA mode tunnel sel src $lnet dst $rnet
+
+    do_esp_policy $ns $me $remote $lnet $rnet
+}
+
+# add policies with different netmasks, to make sure kernel carries
+# the policies contained within new netmask over when search tree is
+# re-built.
+# peer netns that are supposed to be encapsulated via esp have addresses
+# in the 10.0.1.0/24 and 10.0.2.0/24 subnets, respectively.
+#
+# Adding a policy for '10.0.1.0/23' will make it necessary to
+# alter the prefix of 10.0.1.0 subnet.
+# In case new prefix overlaps with existing node, the node and all
+# policies it carries need to be merged with the existing one(s).
+#
+# Do that here.
+do_overlap()
+{
+    local ns=$1
+
+    # adds new nodes to tree (neither network exists yet in policy database).
+    ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+    # adds a new node in the 10.0.0.0/24 tree (dst node exists).
+    ip -net $ns xfrm policy add src 10.2.0.0/24 dst 10.0.0.0/24 dir fwd priority 200 action block
+
+    # adds a 10.2.0.0/23 node, but for different dst.
+    ip -net $ns xfrm policy add src 10.2.0.0/23 dst 10.0.1.0/24 dir fwd priority 200 action block
+
+    # dst now overlaps with the 10.0.1.0/24 ESP policy in fwd.
+    # kernel must 'promote' existing one (10.0.0.0/24) to 10.0.0.0/23.
+    # But 10.0.0.0/23 also includes existing 10.0.1.0/24, so that node
+    # also has to be merged too, including source-sorted subtrees.
+    # old:
+    # 10.0.0.0/24 (node 1 in dst tree of the bin)
+    #    10.1.0.0/24 (node in src tree of dst node 1)
+    #    10.2.0.0/24 (node in src tree of dst node 1)
+    # 10.0.1.0/24 (node 2 in dst tree of the bin)
+    #    10.0.2.0/24 (node in src tree of dst node 2)
+    #    10.2.0.0/24 (node in src tree of dst node 2)
+    #
+    # The next 'policy add' adds dst '10.0.0.0/23', which means
+    # that dst node 1 and dst node 2 have to be merged including
+    # the sub-tree.  As no duplicates are allowed, policies in
+    # the two '10.0.2.0/24' are also merged.
+    #
+    # after the 'add', internal search tree should look like this:
+    # 10.0.0.0/23 (node in dst tree of bin)
+    #     10.0.2.0/24 (node in src tree of dst node)
+    #     10.1.0.0/24 (node in src tree of dst node)
+    #     10.2.0.0/24 (node in src tree of dst node)
+    #
+    # 10.0.0.0/24 and 10.0.1.0/24 nodes have been merged as 10.0.0.0/23.
+    ip -net $ns xfrm policy add src 10.1.0.0/24 dst 10.0.0.0/23 dir fwd priority 200 action block
+
+    # similar to above: add policies (with partially random address), with shrinking prefixes.
+    for p in 29 28 27;do
+      for k in $(seq 1 32); do
+       ip -net $ns xfrm policy add src 10.253.1.$((RANDOM%255))/$p dst 10.254.1.$((RANDOM%255))/$p dir fwd priority $((200+k)) action block 2>/dev/null
+      done
+    done
+}
+
+do_esp_policy_get_check() {
+    local ns=$1
+    local lnet=$2
+    local rnet=$3
+
+    ip -net $ns xfrm policy get src $lnet dst $rnet dir out > /dev/null
+    if [ $? -ne 0 ] && [ $policy_checks_ok -eq 1 ] ;then
+        policy_checks_ok=0
+        echo "FAIL: ip -net $ns xfrm policy get src $lnet dst $rnet dir out"
+        ret=1
+    fi
+
+    ip -net $ns xfrm policy get src $rnet dst $lnet dir fwd > /dev/null
+    if [ $? -ne 0 ] && [ $policy_checks_ok -eq 1 ] ;then
+        policy_checks_ok=0
+        echo "FAIL: ip -net $ns xfrm policy get src $rnet dst $lnet dir fwd"
+        ret=1
+    fi
+}
+
+do_exception() {
+    local ns=$1
+    local me=$2
+    local remote=$3
+    local encryptip=$4
+    local plain=$5
+
+    # network $plain passes without tunnel
+    ip -net $ns xfrm policy add dst $plain dir out priority 10 action allow
+
+    # direct policy for $encryptip, use tunnel, higher prio takes precedence
+    ip -net $ns xfrm policy add dst $encryptip dir out tmpl src $me dst $remote proto esp mode tunnel priority 1 action allow
+}
+
+# policies that are not supposed to match any packets generated in this test.
+do_dummies4() {
+    local ns=$1
+
+    for i in $(seq 10 16);do
+      # dummy policy with wildcard src/dst.
+      echo netns exec $ns ip xfrm policy add src 0.0.0.0/0 dst 10.$i.99.0/30 dir out action block
+      echo netns exec $ns ip xfrm policy add src 10.$i.99.0/30 dst 0.0.0.0/0 dir out action block
+      for j in $(seq 32 64);do
+        echo netns exec $ns ip xfrm policy add src 10.$i.1.0/30 dst 10.$i.$j.0/30 dir out action block
+        # silly, as it encompasses the one above too, but its allowed:
+        echo netns exec $ns ip xfrm policy add src 10.$i.1.0/29 dst 10.$i.$j.0/29 dir out action block
+        # and yet again, even more broad one.
+        echo netns exec $ns ip xfrm policy add src 10.$i.1.0/24 dst 10.$i.$j.0/24 dir out action block
+        echo netns exec $ns ip xfrm policy add src 10.$i.$j.0/24 dst 10.$i.1.0/24 dir fwd action block
+      done
+    done | ip -batch /dev/stdin
+}
+
+do_dummies6() {
+    local ns=$1
+
+    for i in $(seq 10 16);do
+      for j in $(seq 32 64);do
+       echo netns exec $ns ip xfrm policy add src dead:$i::/64 dst dead:$i:$j::/64 dir out action block
+       echo netns exec $ns ip xfrm policy add src dead:$i:$j::/64 dst dead:$i::/24 dir fwd action block
+      done
+    done | ip -batch /dev/stdin
+}
+
+check_ipt_policy_count()
+{
+	ns=$1
+
+	ip netns exec $ns iptables-save -c |grep policy | ( read c rest
+		ip netns exec $ns iptables -Z
+		if [ x"$c" = x'[0:0]' ]; then
+			exit 0
+		elif [ x"$c" = x ]; then
+			echo "ERROR: No counters"
+			ret=1
+			exit 111
+		else
+			exit 1
+		fi
+	)
+}
+
+check_xfrm() {
+	# 0: iptables -m policy rule count == 0
+	# 1: iptables -m policy rule count != 0
+	rval=$1
+	ip=$2
+	local lret=0
+
+	ip netns exec ${ns[1]} ping -q -c 1 10.0.2.$ip > /dev/null
+
+	check_ipt_policy_count ${ns[3]}
+	if [ $? -ne $rval ] ; then
+		lret=1
+	fi
+	check_ipt_policy_count ${ns[4]}
+	if [ $? -ne $rval ] ; then
+		lret=1
+	fi
+
+	ip netns exec ${ns[2]} ping -q -c 1 10.0.1.$ip > /dev/null
+
+	check_ipt_policy_count ${ns[3]}
+	if [ $? -ne $rval ] ; then
+		lret=1
+	fi
+	check_ipt_policy_count ${ns[4]}
+	if [ $? -ne $rval ] ; then
+		lret=1
+	fi
+
+	return $lret
+}
+
+check_exceptions()
+{
+	logpostfix="$1"
+	local lret=0
+
+	# ping to .254 should be excluded from the tunnel (exception is in place).
+	check_xfrm 0 254
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .254 to fail ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: ping to .254 bypassed ipsec tunnel ($logpostfix)"
+	fi
+
+	# ping to .253 should use use ipsec due to direct policy exception.
+	check_xfrm 1 253
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .253 to use ipsec tunnel ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: direct policy matches ($logpostfix)"
+	fi
+
+	# ping to .2 should use ipsec.
+	check_xfrm 1 2
+	if [ $? -ne 0 ]; then
+		echo "FAIL: expected ping to .2 to use ipsec tunnel ($logpostfix)"
+		lret=1
+	else
+		echo "PASS: policy matches ($logpostfix)"
+	fi
+
+	return $lret
+}
+
+check_hthresh_repeat()
+{
+	local log=$1
+	i=0
+
+	for i in $(seq 1 10);do
+		ip -net ${ns[1]} xfrm policy update src e000:0001::0000 dst ff01::0014:0000:0001 dir in tmpl src :: dst :: proto esp mode tunnel priority 100 action allow || break
+		ip -net ${ns[1]} xfrm policy set hthresh6 0 28 || break
+
+		ip -net ${ns[1]} xfrm policy update src e000:0001::0000 dst ff01::01 dir in tmpl src :: dst :: proto esp mode tunnel priority 100 action allow || break
+		ip -net ${ns[1]} xfrm policy set hthresh6 0 28 || break
+	done
+
+	if [ $i -ne 10 ] ;then
+		echo "FAIL: $log" 1>&2
+		ret=1
+		return 1
+	fi
+
+	echo "PASS: $log"
+	return 0
+}
+
+# insert non-overlapping policies in a random order and check that
+# all of them can be fetched using the traffic selectors.
+check_random_order()
+{
+	local ns=$1
+	local log=$2
+
+	for i in $(seq 50); do
+		ip -net $ns xfrm policy flush
+		for j in $(seq 0 16 255 | sort -R); do
+			ip -net $ns xfrm policy add dst $j.0.0.0/24 dir out priority 10 action allow
+		done
+		for j in $(seq 0 16 255); do
+			if ! ip -net $ns xfrm policy get dst $j.0.0.0/24 dir out > /dev/null; then
+				echo "FAIL: $log" 1>&2
+				return 1
+			fi
+		done
+	done
+
+	for i in $(seq 50); do
+		ip -net $ns xfrm policy flush
+		for j in $(seq 0 16 255 | sort -R); do
+			local addr=$(printf "e000:0000:%02x00::/56" $j)
+			ip -net $ns xfrm policy add dst $addr dir out priority 10 action allow
+		done
+		for j in $(seq 0 16 255); do
+			local addr=$(printf "e000:0000:%02x00::/56" $j)
+			if ! ip -net $ns xfrm policy get dst $addr dir out > /dev/null; then
+				echo "FAIL: $log" 1>&2
+				return 1
+			fi
+		done
+	done
+
+	ip -net $ns xfrm policy flush
+
+	echo "PASS: $log"
+	return 0
+}
+
+#check for needed privileges
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip
+fi
+
+ip -Version 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without the ip tool"
+	exit $ksft_skip
+fi
+
+# needed to check if policy lookup got valid ipsec result
+iptables --version 2>/dev/null >/dev/null
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not run test without iptables tool"
+	exit $ksft_skip
+fi
+
+setup_ns ns1 ns2 ns3 ns4
+ns[1]=$ns1
+ns[2]=$ns2
+ns[3]=$ns3
+ns[4]=$ns4
+
+DEV=veth0
+ip link add $DEV netns ${ns[1]} type veth peer name eth1 netns ${ns[3]}
+ip link add $DEV netns ${ns[2]} type veth peer name eth1 netns ${ns[4]}
+
+ip link add $DEV netns ${ns[3]} type veth peer name veth0 netns ${ns[4]}
+
+DEV=veth0
+for i in 1 2; do
+    ip -net ${ns[$i]} link set $DEV up
+    ip -net ${ns[$i]} addr add 10.0.$i.2/24 dev $DEV
+    ip -net ${ns[$i]} addr add dead:$i::2/64 dev $DEV
+
+    ip -net ${ns[$i]} addr add 10.0.$i.253 dev $DEV
+    ip -net ${ns[$i]} addr add 10.0.$i.254 dev $DEV
+    ip -net ${ns[$i]} addr add dead:$i::fd dev $DEV
+    ip -net ${ns[$i]} addr add dead:$i::fe dev $DEV
+done
+
+for i in 3 4; do
+    ip -net ${ns[$i]} link set eth1 up
+    ip -net ${ns[$i]} link set veth0 up
+done
+
+ip -net ${ns[1]} route add default via 10.0.1.1
+ip -net ${ns[2]} route add default via 10.0.2.1
+
+ip -net ${ns[3]} addr add 10.0.1.1/24 dev eth1
+ip -net ${ns[3]} addr add 10.0.3.1/24 dev veth0
+ip -net ${ns[3]} addr add 2001:1::1/64 dev eth1
+ip -net ${ns[3]} addr add 2001:3::1/64 dev veth0
+
+ip -net ${ns[3]} route add default via 10.0.3.10
+
+ip -net ${ns[4]} addr add 10.0.2.1/24 dev eth1
+ip -net ${ns[4]} addr add 10.0.3.10/24 dev veth0
+ip -net ${ns[4]} addr add 2001:2::1/64 dev eth1
+ip -net ${ns[4]} addr add 2001:3::10/64 dev veth0
+ip -net ${ns[4]} route add default via 10.0.3.1
+
+for j in 4 6; do
+	for i in 3 4;do
+		ip netns exec ${ns[$i]} sysctl net.ipv$j.conf.eth1.forwarding=1 > /dev/null
+		ip netns exec ${ns[$i]} sysctl net.ipv$j.conf.veth0.forwarding=1 > /dev/null
+	done
+done
+
+# abuse iptables rule counter to check if ping matches a policy
+ip netns exec ${ns[3]} iptables -p icmp -A FORWARD -m policy --dir out --pol ipsec
+ip netns exec ${ns[4]} iptables -p icmp -A FORWARD -m policy --dir out --pol ipsec
+if [ $? -ne 0 ];then
+	echo "SKIP: Could not insert iptables rule"
+	cleanup_ns $ns1 $ns2 $ns3 $ns4
+	exit $ksft_skip
+fi
+
+#          localip  remoteip  localnet    remotenet
+do_esp ${ns[3]} 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24 $SPI1 $SPI2
+do_esp ${ns[3]} dead:3::1 dead:3::10 dead:1::/64 dead:2::/64 $SPI1 $SPI2
+do_esp ${ns[4]} 10.0.3.10 10.0.3.1 10.0.2.0/24 10.0.1.0/24 $SPI2 $SPI1
+do_esp ${ns[4]} dead:3::10 dead:3::1 dead:2::/64 dead:1::/64 $SPI2 $SPI1
+
+do_dummies4 ${ns[3]}
+do_dummies6 ${ns[4]}
+
+do_esp_policy_get_check ${ns[3]} 10.0.1.0/24 10.0.2.0/24
+do_esp_policy_get_check ${ns[4]} 10.0.2.0/24 10.0.1.0/24
+do_esp_policy_get_check ${ns[3]} dead:1::/64 dead:2::/64
+do_esp_policy_get_check ${ns[4]} dead:2::/64 dead:1::/64
+
+# ping to .254 should use ipsec, exception is not installed.
+check_xfrm 1 254
+if [ $? -ne 0 ]; then
+	echo "FAIL: expected ping to .254 to use ipsec tunnel"
+	ret=1
+else
+	echo "PASS: policy before exception matches"
+fi
+
+# installs exceptions
+#                localip  remoteip   encryptdst  plaindst
+do_exception ${ns[3]} 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
+do_exception ${ns[4]} 10.0.3.10 10.0.3.1 10.0.1.253 10.0.1.240/28
+
+do_exception ${ns[3]} dead:3::1 dead:3::10 dead:2::fd  dead:2:f0::/96
+do_exception ${ns[4]} dead:3::10 dead:3::1 dead:1::fd  dead:1:f0::/96
+
+check_exceptions "exceptions"
+if [ $? -ne 0 ]; then
+	ret=1
+fi
+
+# insert block policies with adjacent/overlapping netmasks
+do_overlap ${ns[3]}
+
+check_exceptions "exceptions and block policies"
+if [ $? -ne 0 ]; then
+	ret=1
+fi
+
+for n in ${ns[3]} ${ns[4]};do
+	ip -net $n xfrm policy set hthresh4 28 24 hthresh6 126 125
+	sleep $((RANDOM%5))
+done
+
+check_exceptions "exceptions and block policies after hresh changes"
+
+# full flush of policy db, check everything gets freed incl. internal meta data
+ip -net ${ns[3]} xfrm policy flush
+
+do_esp_policy ${ns[3]} 10.0.3.1 10.0.3.10 10.0.1.0/24 10.0.2.0/24
+do_exception ${ns[3]} 10.0.3.1 10.0.3.10 10.0.2.253 10.0.2.240/28
+
+# move inexact policies to hash table
+ip -net ${ns[3]} xfrm policy set hthresh4 16 16
+
+sleep $((RANDOM%5))
+check_exceptions "exceptions and block policies after hthresh change in ns3"
+
+# restore original hthresh settings -- move policies back to tables
+for n in ${ns[3]} ${ns[4]};do
+	ip -net $n xfrm policy set hthresh4 32 32 hthresh6 128 128
+	sleep $((RANDOM%5))
+done
+check_exceptions "exceptions and block policies after htresh change to normal"
+
+check_hthresh_repeat "policies with repeated htresh change"
+
+check_random_order ${ns[3]} "policies inserted in random order"
+
+cleanup_ns $ns1 $ns2 $ns3 $ns4
+
+exit $ret
diff --git a/tools/testing/selftests/net/xfrm_policy_add_speed.sh b/tools/testing/selftests/net/xfrm_policy_add_speed.sh
new file mode 100755
index 000000000000..2fab29d3cb91
--- /dev/null
+++ b/tools/testing/selftests/net/xfrm_policy_add_speed.sh
@@ -0,0 +1,83 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+source lib.sh
+
+timeout=4m
+ret=0
+tmp=$(mktemp)
+cleanup() {
+	cleanup_all_ns
+	rm -f "$tmp"
+}
+
+trap cleanup EXIT
+
+maxpolicies=100000
+[ "$KSFT_MACHINE_SLOW" = "yes" ] && maxpolicies=10000
+
+do_dummies4() {
+	local dir="$1"
+	local max="$2"
+
+	local policies
+	local pfx
+	pfx=30
+	policies=0
+
+	ip netns exec "$ns" ip xfrm policy flush
+
+	for i in $(seq 1 100);do
+		local s
+		local d
+		for j in $(seq 1 255);do
+			s=$((i+0))
+			d=$((i+100))
+
+			for a in $(seq 1 8 255); do
+				policies=$((policies+1))
+				[ "$policies" -gt "$max" ] && return
+				echo xfrm policy add src 10.$s.$j.0/30 dst 10.$d.$j.$a/$pfx dir $dir action block
+			done
+			for a in $(seq 1 8 255); do
+				policies=$((policies+1))
+				[ "$policies" -gt "$max" ] && return
+				echo xfrm policy add src 10.$s.$j.$a/30 dst 10.$d.$j.0/$pfx dir $dir action block
+			done
+		done
+	done
+}
+
+setup_ns ns
+
+do_bench()
+{
+	local max="$1"
+
+	start=$(date +%s%3N)
+	do_dummies4 "out" "$max" > "$tmp"
+	if ! timeout "$timeout" ip netns exec "$ns" ip -batch "$tmp";then
+		echo "WARNING: policy insertion cancelled after $timeout"
+		ret=1
+	fi
+	stop=$(date +%s%3N)
+
+	result=$((stop-start))
+
+	policies=$(wc -l < "$tmp")
+	printf "Inserted %-06s policies in $result ms\n" $policies
+
+	have=$(ip netns exec "$ns" ip xfrm policy show | grep "action block" | wc -l)
+	if [ "$have" -ne "$policies" ]; then
+		echo "WARNING: mismatch, have $have policies, expected $policies"
+		ret=1
+	fi
+}
+
+p=100
+while [ $p -le "$maxpolicies" ]; do
+	do_bench "$p"
+	p="${p}0"
+done
+
+exit $ret
diff --git a/tools/testing/selftests/net/ynl.mk b/tools/testing/selftests/net/ynl.mk
new file mode 100644
index 000000000000..793a2fc33d9f
--- /dev/null
+++ b/tools/testing/selftests/net/ynl.mk
@@ -0,0 +1,40 @@
+# SPDX-License-Identifier: GPL-2.0
+
+# YNL selftest build snippet
+
+# Inputs:
+#
+# YNL_GENS:      families we need in the selftests
+# YNL_GEN_PROGS: TEST_GEN_PROGS which need YNL
+# YNL_GEN_FILES: TEST_GEN_FILES which need YNL
+
+YNL_OUTPUTS :=	$(patsubst %,$(OUTPUT)/%,$(YNL_GEN_FILES)) \
+		$(patsubst %,$(OUTPUT)/%,$(YNL_GEN_PROGS))
+YNL_SPECS := \
+	$(patsubst %,$(top_srcdir)/Documentation/netlink/specs/%.yaml,$(YNL_GENS))
+
+$(YNL_OUTPUTS): $(OUTPUT)/libynl.a
+$(YNL_OUTPUTS): CFLAGS += \
+	-I$(top_srcdir)/usr/include/ $(KHDR_INCLUDES) \
+	-I$(top_srcdir)/tools/net/ynl/lib/ \
+	-I$(top_srcdir)/tools/net/ynl/generated/
+
+# Make sure we rebuild libynl if user added a new family. We can't easily
+# depend on the contents of a variable so create a fake file with a hash.
+YNL_GENS_HASH := $(shell echo $(YNL_GENS) | sha1sum | cut -c1-8)
+$(OUTPUT)/.libynl-$(YNL_GENS_HASH).sig:
+	$(Q)rm -f $(OUTPUT)/.libynl-*.sig
+	$(Q)touch $(OUTPUT)/.libynl-$(YNL_GENS_HASH).sig
+
+$(OUTPUT)/libynl.a: $(YNL_SPECS) $(OUTPUT)/.libynl-$(YNL_GENS_HASH).sig
+	$(Q)rm -f $(top_srcdir)/tools/net/ynl/libynl.a
+	$(Q)$(MAKE) -C $(top_srcdir)/tools/net/ynl \
+		GENS="$(YNL_GENS)" RSTS="" libynl.a
+	$(Q)cp $(top_srcdir)/tools/net/ynl/libynl.a $(OUTPUT)/libynl.a
+
+EXTRA_CLEAN += \
+	$(top_srcdir)/tools/net/ynl/pyynl/__pycache__ \
+	$(top_srcdir)/tools/net/ynl/pyynl/lib/__pycache__ \
+	$(top_srcdir)/tools/net/ynl/lib/*.[ado] \
+	$(OUTPUT)/.libynl-*.sig \
+	$(OUTPUT)/libynl.a
diff --git a/tools/testing/selftests/nolibc/.gitignore b/tools/testing/selftests/nolibc/.gitignore
new file mode 100644
index 000000000000..35d247a0d5bd
--- /dev/null
+++ b/tools/testing/selftests/nolibc/.gitignore
@@ -0,0 +1,7 @@
+/initramfs/
+/initramfs.cpio
+/libc-test
+/nolibc-test
+/run.out
+/run.out.*
+/sysroot/
diff --git a/tools/testing/selftests/nolibc/Makefile b/tools/testing/selftests/nolibc/Makefile
new file mode 100644
index 000000000000..40f5c2908dda
--- /dev/null
+++ b/tools/testing/selftests/nolibc/Makefile
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_GEN_PROGS := nolibc-test
+
+include ../lib.mk
+include $(top_srcdir)/scripts/Makefile.compiler
+
+cc-option = $(call __cc-option, $(CC),,$(1),$(2))
+
+include Makefile.include
+
+CFLAGS = -nostdlib -nostdinc -static \
+	 -isystem $(top_srcdir)/tools/include/nolibc -isystem $(top_srcdir)/usr/include \
+	 $(CFLAGS_NOLIBC_TEST)
+
+ifeq ($(LLVM),)
+LDLIBS := -lgcc
+endif
+
+$(OUTPUT)/nolibc-test: nolibc-test.c nolibc-test-linkage.c | headers
+
+help:
+	@echo "For the custom nolibc testsuite use '$(MAKE) -f Makefile.nolibc'; available targets:"
+	@$(MAKE) -f Makefile.nolibc help
+
+.PHONY: help
diff --git a/tools/testing/selftests/nolibc/Makefile.include b/tools/testing/selftests/nolibc/Makefile.include
new file mode 100644
index 000000000000..66287fafbbe0
--- /dev/null
+++ b/tools/testing/selftests/nolibc/Makefile.include
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+
+__CFLAGS_STACKPROTECTOR = $(call cc-option,-fstack-protector-all) $(call cc-option,-mstack-protector-guard=global)
+_CFLAGS_STACKPROTECTOR ?= $(call try-run, \
+	echo 'void foo(void) {}' | $(CC) -x c - -o - -S $(CLANG_CROSS_FLAGS) $(__CFLAGS_STACKPROTECTOR) | grep -q __stack_chk_guard, \
+	$(__CFLAGS_STACKPROTECTOR))
+_CFLAGS_SANITIZER ?= $(call cc-option,-fsanitize=undefined -fsanitize-trap=all)
+CFLAGS_NOLIBC_TEST  ?= -Os -fno-ident -fno-asynchronous-unwind-tables -std=c89 -W -Wall -Wextra \
+		$(call cc-option,-fno-stack-protector) $(call cc-option,-Wmissing-prototypes) \
+		$(_CFLAGS_STACKPROTECTOR) $(_CFLAGS_SANITIZER)
diff --git a/tools/testing/selftests/nolibc/Makefile.nolibc b/tools/testing/selftests/nolibc/Makefile.nolibc
new file mode 100644
index 000000000000..f9d43cbdc894
--- /dev/null
+++ b/tools/testing/selftests/nolibc/Makefile.nolibc
@@ -0,0 +1,382 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for nolibc tests
+# we're in ".../tools/testing/selftests/nolibc"
+ifeq ($(srctree),)
+srctree := $(patsubst %/tools/testing/selftests/,%,$(dir $(CURDIR)))
+endif
+
+include $(srctree)/tools/scripts/utilities.mak
+# We need this for the "__cc-option" macro.
+include $(srctree)/scripts/Makefile.compiler
+
+ifneq ($(O),)
+ifneq ($(call is-absolute,$(O)),y)
+$(error Only absolute O= parameters are supported)
+endif
+objtree := $(O)
+else
+objtree ?= $(srctree)
+endif
+
+ifeq ($(ARCH),)
+include $(srctree)/scripts/subarch.include
+ARCH = $(SUBARCH)
+endif
+
+cc-option = $(call __cc-option, $(CC),$(CLANG_CROSS_FLAGS),$(1),$(2))
+
+# XARCH extends the kernel's ARCH with a few variants of the same
+# architecture that only differ by the configuration, the toolchain
+# and the Qemu program used. It is copied as-is into ARCH except for
+# a few specific values which are mapped like this:
+#
+#  XARCH        | ARCH      | config
+#  -------------|-----------|-------------------------
+#  ppc          | powerpc   | 32 bits
+#  ppc64        | powerpc   | 64 bits big endian
+#  ppc64le      | powerpc   | 64 bits little endian
+#
+# It is recommended to only use XARCH, though it does not harm if
+# ARCH is already set. For simplicity, ARCH is sufficient for all
+# architectures where both are equal.
+
+# configure default variants for target kernel supported architectures
+XARCH_powerpc    = ppc
+XARCH_mips       = mips32le
+XARCH_riscv      = riscv64
+XARCH            = $(or $(XARCH_$(ARCH)),$(ARCH))
+
+# map from user input variants to their kernel supported architectures
+ARCH_x32         = x86
+ARCH_armthumb    = arm
+ARCH_ppc         = powerpc
+ARCH_ppc64       = powerpc
+ARCH_ppc64le     = powerpc
+ARCH_mips32le    = mips
+ARCH_mips32be    = mips
+ARCH_mipsn32le   = mips
+ARCH_mipsn32be   = mips
+ARCH_mips64le    = mips
+ARCH_mips64be    = mips
+ARCH_riscv32     = riscv
+ARCH_riscv64     = riscv
+ARCH_s390x       = s390
+ARCH_sparc32     = sparc
+ARCH_sparc64     = sparc
+ARCH_sh4         = sh
+ARCH            := $(or $(ARCH_$(XARCH)),$(XARCH))
+
+# kernel image names by architecture
+IMAGE_i386       = arch/x86/boot/bzImage
+IMAGE_x86_64     = arch/x86/boot/bzImage
+IMAGE_x32        = arch/x86/boot/bzImage
+IMAGE_x86        = arch/x86/boot/bzImage
+IMAGE_arm64      = arch/arm64/boot/Image
+IMAGE_arm        = arch/arm/boot/zImage
+IMAGE_armthumb   = arch/arm/boot/zImage
+IMAGE_mips32le   = vmlinuz
+IMAGE_mips32be   = vmlinuz
+IMAGE_mipsn32le  = vmlinuz
+IMAGE_mipsn32be  = vmlinuz
+IMAGE_mips64le   = vmlinuz
+IMAGE_mips64be   = vmlinuz
+IMAGE_ppc        = vmlinux
+IMAGE_ppc64      = vmlinux
+IMAGE_ppc64le    = arch/powerpc/boot/zImage
+IMAGE_riscv      = arch/riscv/boot/Image
+IMAGE_riscv32    = arch/riscv/boot/Image
+IMAGE_riscv64    = arch/riscv/boot/Image
+IMAGE_s390x      = arch/s390/boot/bzImage
+IMAGE_loongarch  = arch/loongarch/boot/vmlinuz.efi
+IMAGE_sparc32    = arch/sparc/boot/image
+IMAGE_sparc64    = arch/sparc/boot/image
+IMAGE_m68k       = vmlinux
+IMAGE_sh4        = arch/sh/boot/zImage
+IMAGE            = $(objtree)/$(IMAGE_$(XARCH))
+IMAGE_NAME       = $(notdir $(IMAGE))
+
+# default kernel configurations that appear to be usable
+DEFCONFIG_i386       = defconfig
+DEFCONFIG_x86_64     = defconfig
+DEFCONFIG_x32        = defconfig
+DEFCONFIG_x86        = defconfig
+DEFCONFIG_arm64      = defconfig
+DEFCONFIG_arm        = multi_v7_defconfig
+DEFCONFIG_armthumb   = multi_v7_defconfig
+DEFCONFIG_mips32le   = malta_defconfig
+DEFCONFIG_mips32be   = malta_defconfig generic/eb.config
+DEFCONFIG_mipsn32le  = malta_defconfig generic/64r2.config
+DEFCONFIG_mipsn32be  = malta_defconfig generic/64r6.config generic/eb.config
+DEFCONFIG_mips64le   = malta_defconfig generic/64r6.config
+DEFCONFIG_mips64be   = malta_defconfig generic/64r2.config generic/eb.config
+DEFCONFIG_ppc        = pmac32_defconfig
+DEFCONFIG_ppc64      = powernv_be_defconfig
+DEFCONFIG_ppc64le    = powernv_defconfig
+DEFCONFIG_riscv      = defconfig
+DEFCONFIG_riscv32    = rv32_defconfig
+DEFCONFIG_riscv64    = defconfig
+DEFCONFIG_s390x      = defconfig
+DEFCONFIG_loongarch  = defconfig
+DEFCONFIG_sparc32    = sparc32_defconfig
+DEFCONFIG_sparc64    = sparc64_defconfig
+DEFCONFIG_m68k       = virt_defconfig
+DEFCONFIG_sh4        = rts7751r2dplus_defconfig
+DEFCONFIG            = $(DEFCONFIG_$(XARCH))
+
+EXTRACONFIG_x32       = -e CONFIG_X86_X32_ABI
+EXTRACONFIG_arm       = -e CONFIG_NAMESPACES
+EXTRACONFIG_armthumb  = -e CONFIG_NAMESPACES
+EXTRACONFIG_m68k      = -e CONFIG_BLK_DEV_INITRD
+EXTRACONFIG_sh4       = -e CONFIG_BLK_DEV_INITRD -e CONFIG_CMDLINE_FROM_BOOTLOADER
+EXTRACONFIG           = $(EXTRACONFIG_$(XARCH))
+
+# optional tests to run (default = all)
+TEST =
+
+# QEMU_ARCH: arch names used by qemu
+QEMU_ARCH_i386       = i386
+QEMU_ARCH_x86_64     = x86_64
+QEMU_ARCH_x32        = x86_64
+QEMU_ARCH_x86        = x86_64
+QEMU_ARCH_arm64      = aarch64
+QEMU_ARCH_arm        = arm
+QEMU_ARCH_armthumb   = arm
+QEMU_ARCH_mips32le   = mipsel  # works with malta_defconfig
+QEMU_ARCH_mips32be  = mips
+QEMU_ARCH_mipsn32le  = mips64el
+QEMU_ARCH_mipsn32be  = mips64
+QEMU_ARCH_mips64le   = mips64el
+QEMU_ARCH_mips64be   = mips64
+QEMU_ARCH_ppc        = ppc
+QEMU_ARCH_ppc64      = ppc64
+QEMU_ARCH_ppc64le    = ppc64
+QEMU_ARCH_riscv      = riscv64
+QEMU_ARCH_riscv32    = riscv32
+QEMU_ARCH_riscv64    = riscv64
+QEMU_ARCH_s390x      = s390x
+QEMU_ARCH_loongarch  = loongarch64
+QEMU_ARCH_sparc32    = sparc
+QEMU_ARCH_sparc64    = sparc64
+QEMU_ARCH_m68k       = m68k
+QEMU_ARCH_sh4        = sh4
+QEMU_ARCH            = $(QEMU_ARCH_$(XARCH))
+
+QEMU_ARCH_USER_ppc64le = ppc64le
+QEMU_ARCH_USER_mipsn32le = mipsn32el
+QEMU_ARCH_USER_mipsn32be = mipsn32
+QEMU_ARCH_USER         = $(or $(QEMU_ARCH_USER_$(XARCH)),$(QEMU_ARCH_$(XARCH)))
+
+QEMU_BIOS_DIR = /usr/share/edk2/
+QEMU_BIOS_loongarch = $(QEMU_BIOS_DIR)/loongarch64/OVMF_CODE.fd
+
+ifneq ($(QEMU_BIOS_$(XARCH)),)
+QEMU_ARGS_BIOS = -bios $(QEMU_BIOS_$(XARCH))
+endif
+
+# QEMU_ARGS : some arch-specific args to pass to qemu
+QEMU_ARGS_i386       = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_x86_64     = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_x32        = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_x86        = -M pc -append "console=ttyS0,9600 i8042.noaux panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_arm64      = -M virt -cpu cortex-a53 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_arm        = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_armthumb   = -M virt -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mips32le   = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mips32be   = -M malta -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mipsn32le  = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mipsn32be  = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mips64le   = -M malta -cpu I6400 -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_mips64be   = -M malta -cpu 5KEc -append "panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_ppc        = -M g3beige -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_ppc64      = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_ppc64le    = -M powernv -append "console=hvc0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_riscv      = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_riscv32    = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_riscv64    = -M virt -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_s390x      = -M s390-ccw-virtio -append "console=ttyS0 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_loongarch  = -M virt -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_sparc32    = -M SS-5 -m 256M -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_sparc64    = -M sun4u -append "console=ttyS0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_m68k       = -M virt -append "console=ttyGF0,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS_sh4        = -M r2d -serial file:/dev/stdout -append "console=ttySC1,115200 panic=-1 $(TEST:%=NOLIBC_TEST=%)"
+QEMU_ARGS            = -m 1G $(QEMU_ARGS_$(XARCH)) $(QEMU_ARGS_BIOS) $(QEMU_ARGS_EXTRA)
+
+# OUTPUT is only set when run from the main makefile, otherwise
+# it defaults to this nolibc directory.
+OUTPUT ?= $(CURDIR)/
+
+ifeq ($(V),1)
+Q=
+else
+Q=@
+endif
+
+CFLAGS_i386 = $(call cc-option,-m32)
+CFLAGS_x32 = -mx32
+CFLAGS_arm = -marm
+CFLAGS_armthumb = -mthumb -march=armv6t2
+CFLAGS_ppc = -m32 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
+CFLAGS_ppc64 = -m64 -mbig-endian -mno-vsx $(call cc-option,-mmultiple)
+CFLAGS_ppc64le = -m64 -mlittle-endian -mno-vsx $(call cc-option,-mabi=elfv2)
+CFLAGS_s390x = -m64
+CFLAGS_mips32le = -EL -mabi=32 -fPIC
+CFLAGS_mips32be = -EB -mabi=32
+CFLAGS_mipsn32le = -EL -mabi=n32 -fPIC -march=mips64r2
+CFLAGS_mipsn32be = -EB -mabi=n32 -march=mips64r6
+CFLAGS_mips64le = -EL -mabi=64 -march=mips64r6
+CFLAGS_mips64be = -EB -mabi=64 -march=mips64r2
+CFLAGS_loongarch = $(if $(LLVM),-fuse-ld=lld)
+CFLAGS_sparc32 = $(call cc-option,-m32)
+CFLAGS_sh4 = -ml -m4
+ifeq ($(origin XARCH),command line)
+CFLAGS_XARCH = $(CFLAGS_$(XARCH))
+endif
+
+include Makefile.include
+
+CFLAGS  ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA)
+LDFLAGS :=
+
+LIBGCC := -lgcc
+
+ifeq ($(ARCH),x86)
+# Not needed on x86, probably not present for x32
+LIBGCC :=
+endif
+
+ifneq ($(LLVM),)
+# Not needed for clang
+LIBGCC :=
+endif
+
+# Modify CFLAGS based on LLVM=
+include $(srctree)/tools/scripts/Makefile.include
+
+REPORT  ?= awk '/\[OK\][\r]*$$/{p++} /\[FAIL\][\r]*$$/{if (!f) printf("\n"); f++; print;} /\[SKIPPED\][\r]*$$/{s++} \
+		/^Total number of errors:/{done++} \
+		END{ printf("\n%3d test(s): %3d passed, %3d skipped, %3d failed => status: ", p+s+f, p, s, f); \
+		if (f || !p || !done) printf("failure\n"); else if (s) printf("warning\n"); else printf("success\n");; \
+		printf("\nSee all results in %s\n", ARGV[1]); }'
+
+# Execute the toplevel kernel Makefile
+KBUILD_MAKE = $(MAKE) -C $(srctree) ARCH=$(ARCH) CROSS_COMPILE=$(CROSS_COMPILE) LLVM=
+
+help:
+	@echo "Supported targets under selftests/nolibc:"
+	@echo "  all               call the \"run\" target below"
+	@echo "  help              this help"
+	@echo "  sysroot           create the nolibc sysroot here (uses \$$ARCH)"
+	@echo "  nolibc-test       build the executable (uses \$$CC or \$$CROSS_COMPILE)"
+	@echo "  libc-test         build an executable using the compiler's default libc instead"
+	@echo "  run-user          runs the executable under QEMU (uses \$$XARCH, \$$TEST)"
+	@echo "  initramfs.cpio    prepare the initramfs archive with nolibc-test"
+	@echo "  initramfs         prepare the initramfs tree with nolibc-test"
+	@echo "  defconfig         create a fresh new default config (uses \$$XARCH)"
+	@echo "  kernel            (re)build the kernel (uses \$$XARCH, \$$CROSS_COMPILE)"
+	@echo "  kernel-standalone (re)build the kernel with the initramfs (uses \$$XARCH, \$$CROSS_COMPILE)"
+	@echo "  run               runs the kernel in QEMU after building it (uses \$$XARCH, \$$TEST)"
+	@echo "  rerun             runs a previously prebuilt kernel in QEMU (uses \$$XARCH, \$$TEST)"
+	@echo "  clean             clean the sysroot, initramfs, build and output files"
+	@echo ""
+	@echo "The output file is \"run.out\". Test ranges may be passed using \$$TEST."
+	@echo ""
+	@echo "Currently using the following variables:"
+	@echo "  ARCH          = $(ARCH)"
+	@echo "  XARCH         = $(XARCH)"
+	@echo "  CROSS_COMPILE = $(CROSS_COMPILE)"
+	@echo "  CC            = $(CC)"
+	@echo "  OUTPUT        = $(OUTPUT)"
+	@echo "  TEST          = $(TEST)"
+	@echo "  QEMU_ARCH     = $(if $(QEMU_ARCH),$(QEMU_ARCH),UNKNOWN_ARCH) [determined from \$$XARCH]"
+	@echo "  IMAGE_NAME    = $(if $(IMAGE_NAME),$(IMAGE_NAME),UNKNOWN_ARCH) [determined from \$$XARCH]"
+	@echo ""
+
+all: run
+
+sysroot: sysroot/$(ARCH)/include
+
+sysroot/$(ARCH)/include:
+	$(Q)rm -rf sysroot/$(ARCH) sysroot/sysroot
+	$(QUIET_MKDIR)mkdir -p sysroot
+	$(Q)$(MAKE) -C $(srctree) outputmakefile
+	$(Q)$(MAKE) -C $(srctree)/tools/include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone headers_check
+	$(Q)mv sysroot/sysroot sysroot/$(ARCH)
+
+ifneq ($(NOLIBC_SYSROOT),0)
+nolibc-test: nolibc-test.c nolibc-test-linkage.c sysroot/$(ARCH)/include
+	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
+	  -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include nolibc-test.c nolibc-test-linkage.c $(LIBGCC)
+else
+nolibc-test: nolibc-test.c nolibc-test-linkage.c
+	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \
+	  -nostdlib -static -include $(srctree)/tools/include/nolibc/nolibc.h nolibc-test.c nolibc-test-linkage.c $(LIBGCC)
+endif
+
+libc-test: nolibc-test.c nolibc-test-linkage.c
+	$(QUIET_CC)$(HOSTCC) -o $@ nolibc-test.c nolibc-test-linkage.c
+
+# local libc-test
+run-libc-test: libc-test
+	$(Q)./libc-test > "$(CURDIR)/run.out" || :
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+# local nolibc-test
+run-nolibc-test: nolibc-test
+	$(Q)./nolibc-test > "$(CURDIR)/run.out" || :
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+# qemu user-land test
+run-user: nolibc-test
+	$(Q)qemu-$(QEMU_ARCH_USER) ./nolibc-test > "$(CURDIR)/run.out" || :
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+initramfs.cpio: kernel nolibc-test
+	$(QUIET_GEN)echo 'file /init nolibc-test 755 0 0' | $(objtree)/usr/gen_init_cpio - > initramfs.cpio
+
+initramfs: nolibc-test
+	$(QUIET_MKDIR)mkdir -p initramfs
+	$(call QUIET_INSTALL, initramfs/init)
+	$(Q)cp nolibc-test initramfs/init
+
+defconfig:
+	$(Q)$(KBUILD_MAKE) $(DEFCONFIG)
+	$(Q)if [ -n "$(EXTRACONFIG)" ]; then \
+		$(srctree)/scripts/config --file $(objtree)/.config $(EXTRACONFIG); \
+		$(KBUILD_MAKE) olddefconfig < /dev/null; \
+	fi
+
+kernel:
+	$(Q)$(KBUILD_MAKE) $(IMAGE_NAME) < /dev/null
+
+kernel-standalone: initramfs
+	$(Q)$(KBUILD_MAKE) $(IMAGE_NAME) CONFIG_INITRAMFS_SOURCE=$(CURDIR)/initramfs < /dev/null
+
+# run the tests after building the kernel
+run: kernel initramfs.cpio
+	$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+# re-run the tests from an existing kernel
+rerun:
+	$(Q)qemu-system-$(QEMU_ARCH) -display none -no-reboot -kernel "$(IMAGE)" -initrd initramfs.cpio -serial file:/dev/stdout $(QEMU_ARGS) > "$(CURDIR)/run.out"
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+# report with existing test log
+report:
+	$(Q)$(REPORT) $(CURDIR)/run.out
+
+clean:
+	$(call QUIET_CLEAN, sysroot)
+	$(Q)rm -rf sysroot
+	$(call QUIET_CLEAN, nolibc-test)
+	$(Q)rm -f nolibc-test
+	$(call QUIET_CLEAN, libc-test)
+	$(Q)rm -f libc-test
+	$(call QUIET_CLEAN, initramfs.cpio)
+	$(Q)rm -rf initramfs.cpio
+	$(call QUIET_CLEAN, initramfs)
+	$(Q)rm -rf initramfs
+	$(call QUIET_CLEAN, run.out)
+	$(Q)rm -rf run.out
+
+.PHONY: sysroot/$(ARCH)/include
diff --git a/tools/testing/selftests/nolibc/nolibc-test-linkage.c b/tools/testing/selftests/nolibc/nolibc-test-linkage.c
new file mode 100644
index 000000000000..0636d1b6e808
--- /dev/null
+++ b/tools/testing/selftests/nolibc/nolibc-test-linkage.c
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include "nolibc-test-linkage.h"
+
+#include <errno.h>
+
+void *linkage_test_errno_addr(void)
+{
+	return &errno;
+}
+
+int linkage_test_constructor_test_value = 0;
+
+__attribute__((constructor))
+static void constructor1(void)
+{
+	linkage_test_constructor_test_value |= 1 << 0;
+}
+
+__attribute__((constructor))
+static void constructor2(void)
+{
+	linkage_test_constructor_test_value |= 1 << 1;
+}
diff --git a/tools/testing/selftests/nolibc/nolibc-test-linkage.h b/tools/testing/selftests/nolibc/nolibc-test-linkage.h
new file mode 100644
index 000000000000..c66473070d73
--- /dev/null
+++ b/tools/testing/selftests/nolibc/nolibc-test-linkage.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _NOLIBC_TEST_LINKAGE_H
+#define _NOLIBC_TEST_LINKAGE_H
+
+void *linkage_test_errno_addr(void);
+extern int linkage_test_constructor_test_value;
+
+#endif /* _NOLIBC_TEST_LINKAGE_H */
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c
new file mode 100644
index 000000000000..3c5a226dad3a
--- /dev/null
+++ b/tools/testing/selftests/nolibc/nolibc-test.c
@@ -0,0 +1,2027 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+#define _LARGEFILE64_SOURCE
+
+/* libc-specific include files
+ * The program may be built in 3 ways:
+ *   $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined
+ *   $(CC) -nostdlib -I/path/to/nolibc/sysroot  => _NOLIBC_* guards are present
+ *   $(CC) with default libc                    => NOLIBC* never defined
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/auxv.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/random.h>
+#include <sys/reboot.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/syscall.h>
+#include <sys/sysmacros.h>
+#include <sys/time.h>
+#include <sys/timerfd.h>
+#include <sys/uio.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <poll.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <time.h>
+#include <unistd.h>
+#include <limits.h>
+#include <ctype.h>
+
+#pragma GCC diagnostic ignored "-Wmissing-prototypes"
+
+#include "nolibc-test-linkage.h"
+
+/* for the type of int_fast16_t and int_fast32_t, musl differs from glibc and nolibc */
+#define SINT_MAX_OF_TYPE(type) (((type)1 << (sizeof(type) * 8 - 2)) - (type)1 + ((type)1 << (sizeof(type) * 8 - 2)))
+#define SINT_MIN_OF_TYPE(type) (-SINT_MAX_OF_TYPE(type) - 1)
+
+/* will be used to test initialization of environ */
+static char **test_envp;
+
+/* will be used to test initialization of argv */
+static char **test_argv;
+
+/* will be used to test initialization of argc */
+static int test_argc;
+
+/* will be used by some test cases as readable file, please don't write it */
+static const char *argv0;
+
+/* will be used by constructor tests */
+static int constructor_test_value;
+
+static const int is_nolibc =
+#ifdef NOLIBC
+	1
+#else
+	0
+#endif
+;
+
+/* definition of a series of tests */
+struct test {
+	const char *name;              /* test name */
+	int (*func)(int min, int max); /* handler */
+};
+
+#ifndef _NOLIBC_STDLIB_H
+char *itoa(int i)
+{
+	static char buf[12];
+	int ret;
+
+	ret = snprintf(buf, sizeof(buf), "%d", i);
+	return (ret >= 0 && ret < sizeof(buf)) ? buf : "#err";
+}
+#endif
+
+#define CASE_ERR(err) \
+	case err: return #err
+
+/* returns the error name (e.g. "ENOENT") for common errors, "SUCCESS" for 0,
+ * or the decimal value for less common ones.
+ */
+static const char *errorname(int err)
+{
+	switch (err) {
+	case 0: return "SUCCESS";
+	CASE_ERR(EPERM);
+	CASE_ERR(ENOENT);
+	CASE_ERR(ESRCH);
+	CASE_ERR(EINTR);
+	CASE_ERR(EIO);
+	CASE_ERR(ENXIO);
+	CASE_ERR(E2BIG);
+	CASE_ERR(ENOEXEC);
+	CASE_ERR(EBADF);
+	CASE_ERR(ECHILD);
+	CASE_ERR(EAGAIN);
+	CASE_ERR(ENOMEM);
+	CASE_ERR(EACCES);
+	CASE_ERR(EFAULT);
+	CASE_ERR(ENOTBLK);
+	CASE_ERR(EBUSY);
+	CASE_ERR(EEXIST);
+	CASE_ERR(EXDEV);
+	CASE_ERR(ENODEV);
+	CASE_ERR(ENOTDIR);
+	CASE_ERR(EISDIR);
+	CASE_ERR(EINVAL);
+	CASE_ERR(ENFILE);
+	CASE_ERR(EMFILE);
+	CASE_ERR(ENOTTY);
+	CASE_ERR(ETXTBSY);
+	CASE_ERR(EFBIG);
+	CASE_ERR(ENOSPC);
+	CASE_ERR(ESPIPE);
+	CASE_ERR(EROFS);
+	CASE_ERR(EMLINK);
+	CASE_ERR(EPIPE);
+	CASE_ERR(EDOM);
+	CASE_ERR(ERANGE);
+	CASE_ERR(ENOSYS);
+	CASE_ERR(EOVERFLOW);
+	default:
+		return itoa(err);
+	}
+}
+
+static void align_result(size_t llen)
+{
+	const size_t align = 64;
+	char buf[align];
+	size_t n;
+
+	if (llen >= align)
+		return;
+
+	n = align - llen;
+	memset(buf, ' ', n);
+	buf[n] = '\0';
+	fputs(buf, stdout);
+}
+
+enum RESULT {
+	OK,
+	FAIL,
+	SKIPPED,
+};
+
+static void result(int llen, enum RESULT r)
+{
+	const char *msg;
+
+	if (r == OK)
+		msg = "  [OK]";
+	else if (r == SKIPPED)
+		msg = "[SKIPPED]";
+	else
+		msg = " [FAIL]";
+
+	align_result(llen);
+	puts(msg);
+}
+
+/* The tests below are intended to be used by the macroes, which evaluate
+ * expression <expr>, print the status to stdout, and update the "ret"
+ * variable to count failures. The functions themselves return the number
+ * of failures, thus either 0 or 1.
+ */
+
+#define EXPECT_ZR(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_zr(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_zr(int expr, int llen)
+{
+	int ret = !(expr == 0);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_NZ(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_nz(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_nz(int expr, int llen)
+{
+	int ret = !(expr != 0);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_EQ(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_eq(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_eq(uint64_t expr, int llen, uint64_t val)
+{
+	int ret = !(expr == val);
+
+	llen += printf(" = %lld ", (long long)expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_NE(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ne(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_ne(int expr, int llen, int val)
+{
+	int ret = !(expr != val);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_GE(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ge(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_ge(int expr, int llen, int val)
+{
+	int ret = !(expr >= val);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_GT(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_gt(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_gt(int expr, int llen, int val)
+{
+	int ret = !(expr > val);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_LE(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_le(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_le(int expr, int llen, int val)
+{
+	int ret = !(expr <= val);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_LT(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_lt(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_lt(int expr, int llen, int val)
+{
+	int ret = !(expr < val);
+
+	llen += printf(" = %d ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_SYSZR(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syszr(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_syszr(int expr, int llen)
+{
+	int ret = 0;
+
+	if (errno == ENOSYS) {
+		llen += printf(" = ENOSYS");
+		result(llen, SKIPPED);
+	} else if (expr) {
+		ret = 1;
+		llen += printf(" = %d %s ", expr, errorname(errno));
+		result(llen, FAIL);
+	} else {
+		llen += printf(" = %d ", expr);
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_SYSEQ(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syseq(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_syseq(int expr, int llen, int val)
+{
+	int ret = 0;
+
+	if (expr != val) {
+		ret = 1;
+		llen += printf(" = %d %s ", expr, errorname(errno));
+		result(llen, FAIL);
+	} else {
+		llen += printf(" = %d ", expr);
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_SYSNE(cond, expr, val)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_sysne(expr, llen, val); } while (0)
+
+static __attribute__((unused))
+int expect_sysne(int expr, int llen, int val)
+{
+	int ret = 0;
+
+	if (errno == ENOSYS) {
+		llen += printf(" = ENOSYS");
+		result(llen, SKIPPED);
+	} else if (expr == val) {
+		ret = 1;
+		llen += printf(" = %d %s ", expr, errorname(errno));
+		result(llen, FAIL);
+	} else {
+		llen += printf(" = %d ", expr);
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_SYSER2(cond, expr, expret, experr1, experr2)		\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_syserr2(expr, expret, experr1, experr2, llen); } while (0)
+
+#define EXPECT_SYSER(cond, expr, expret, experr)			\
+	EXPECT_SYSER2(cond, expr, expret, experr, 0)
+
+static __attribute__((unused))
+int expect_syserr2(int expr, int expret, int experr1, int experr2, int llen)
+{
+	int ret = 0;
+	int _errno = errno;
+
+	llen += printf(" = %d %s ", expr, errorname(_errno));
+	if (errno == ENOSYS) {
+		result(llen, SKIPPED);
+	} else if (expr != expret || (_errno != experr1 && _errno != experr2)) {
+		ret = 1;
+		if (experr2 == 0)
+			llen += printf(" != (%d %s) ", expret, errorname(experr1));
+		else
+			llen += printf(" != (%d %s %s) ", expret, errorname(experr1), errorname(experr2));
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_PTRZR(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrzr(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_ptrzr(const void *expr, int llen)
+{
+	int ret = 0;
+
+	llen += printf(" = <%p> ", expr);
+	if (expr) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_PTRNZ(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrnz(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_ptrnz(const void *expr, int llen)
+{
+	int ret = 0;
+
+	llen += printf(" = <%p> ", expr);
+	if (!expr) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+#define EXPECT_PTREQ(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptreq(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptreq(const void *expr, int llen, const void *cmp)
+{
+	int ret = 0;
+
+	llen += printf(" = <%p> ", expr);
+	if (expr != cmp) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+#define EXPECT_PTRNE(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrne(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptrne(const void *expr, int llen, const void *cmp)
+{
+	int ret = 0;
+
+	llen += printf(" = <%p> ", expr);
+	if (expr == cmp) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+#define EXPECT_PTRGE(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrge(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptrge(const void *expr, int llen, const void *cmp)
+{
+	int ret = !(expr >= cmp);
+
+	llen += printf(" = <%p> ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+#define EXPECT_PTRGT(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrgt(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptrgt(const void *expr, int llen, const void *cmp)
+{
+	int ret = !(expr > cmp);
+
+	llen += printf(" = <%p> ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_PTRLE(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrle(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptrle(const void *expr, int llen, const void *cmp)
+{
+	int ret = !(expr <= cmp);
+
+	llen += printf(" = <%p> ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+
+#define EXPECT_PTRLT(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrlt(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_ptrlt(const void *expr, int llen, const void *cmp)
+{
+	int ret = !(expr < cmp);
+
+	llen += printf(" = <%p> ", expr);
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+#define EXPECT_PTRER2(cond, expr, expret, experr1, experr2)		\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_ptrerr2(expr, expret, experr1, experr2, llen); } while (0)
+
+#define EXPECT_PTRER(cond, expr, expret, experr)			\
+	EXPECT_PTRER2(cond, expr, expret, experr, 0)
+
+static __attribute__((unused))
+int expect_ptrerr2(const void *expr, const void *expret, int experr1, int experr2, int llen)
+{
+	int ret = 0;
+	int _errno = errno;
+
+	llen += printf(" = <%p> %s ", expr, errorname(_errno));
+	if (expr != expret || (_errno != experr1 && _errno != experr2)) {
+		ret = 1;
+		if (experr2 == 0)
+			llen += printf(" != (<%p> %s) ", expret, errorname(experr1));
+		else
+			llen += printf(" != (<%p> %s %s) ", expret, errorname(experr1), errorname(experr2));
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+#define EXPECT_STRZR(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strzr(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_strzr(const char *expr, int llen)
+{
+	int ret = 0;
+
+	llen += printf(" = <%s> ", expr ? expr : "(null)");
+	if (expr) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_STRNZ(cond, expr)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strnz(expr, llen); } while (0)
+
+static __attribute__((unused))
+int expect_strnz(const char *expr, int llen)
+{
+	int ret = 0;
+
+	llen += printf(" = <%s> ", expr ? expr : "(null)");
+	if (!expr) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_STREQ(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_streq(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_streq(const char *expr, int llen, const char *cmp)
+{
+	int ret = 0;
+
+	llen += printf(" = <%s> ", expr);
+	if (strcmp(expr, cmp) != 0) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+
+#define EXPECT_STRNE(cond, expr, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strne(expr, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_strne(const char *expr, int llen, const char *cmp)
+{
+	int ret = 0;
+
+	llen += printf(" = <%s> ", expr);
+	if (strcmp(expr, cmp) == 0) {
+		ret = 1;
+		result(llen, FAIL);
+	} else {
+		result(llen, OK);
+	}
+	return ret;
+}
+
+#define EXPECT_STRBUFEQ(cond, expr, buf, val, cmp)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_str_buf_eq(expr, buf, val, llen, cmp); } while (0)
+
+static __attribute__((unused))
+int expect_str_buf_eq(size_t expr, const char *buf, size_t val, int llen, const char *cmp)
+{
+	llen += printf(" = %lu <%s> ", (unsigned long)expr, buf);
+	if (strcmp(buf, cmp) != 0) {
+		result(llen, FAIL);
+		return 1;
+	}
+	if (expr != val) {
+		result(llen, FAIL);
+		return 1;
+	}
+
+	result(llen, OK);
+	return 0;
+}
+
+#define EXPECT_STRTOX(cond, func, input, base, expected, chars, expected_errno)				\
+	do { if (!(cond)) result(llen, SKIPPED); else ret += expect_strtox(llen, func, input, base, expected, chars, expected_errno); } while (0)
+
+static __attribute__((unused))
+int expect_strtox(int llen, void *func, const char *input, int base, intmax_t expected, int expected_chars, int expected_errno)
+{
+	char *endptr;
+	int actual_errno, actual_chars;
+	intmax_t r;
+
+	errno = 0;
+	if (func == strtol) {
+		r = strtol(input, &endptr, base);
+	} else if (func == strtoul) {
+		r = strtoul(input, &endptr, base);
+	} else {
+		result(llen, FAIL);
+		return 1;
+	}
+	actual_errno = errno;
+	actual_chars = endptr - input;
+
+	llen += printf(" %lld = %lld", (long long)expected, (long long)r);
+	if (r != expected) {
+		result(llen, FAIL);
+		return 1;
+	}
+	if (expected_chars == -1) {
+		if (*endptr != '\0') {
+			result(llen, FAIL);
+			return 1;
+		}
+	} else if (expected_chars != actual_chars) {
+		result(llen, FAIL);
+		return 1;
+	}
+	if (actual_errno != expected_errno) {
+		result(llen, FAIL);
+		return 1;
+	}
+
+	result(llen, OK);
+	return 0;
+}
+
+/* declare tests based on line numbers. There must be exactly one test per line. */
+#define CASE_TEST(name) \
+	case __LINE__: llen += printf("%d %s", test, #name);
+
+__attribute__((constructor))
+static void constructor1(void)
+{
+	constructor_test_value |= 1 << 0;
+}
+
+__attribute__((constructor))
+static void constructor2(int argc, char **argv, char **envp)
+{
+	if (argc && argv && envp)
+		constructor_test_value |= 1 << 1;
+}
+
+int run_startup(int min, int max)
+{
+	int test;
+	int ret = 0;
+	/* kernel at least passes HOME and TERM, shell passes more */
+	int env_total = 2;
+	/* checking NULL for argv/argv0, environ and _auxv is not enough, let's compare with sbrk(0) or &end */
+	extern char end;
+	char *brk = sbrk(0) != (void *)-1 ? sbrk(0) : &end;
+	/* differ from nolibc, both glibc and musl have no global _auxv */
+	const unsigned long *test_auxv = (void *)-1;
+#ifdef NOLIBC
+	test_auxv = _auxv;
+#endif
+
+	for (test = min; test >= 0 && test <= max; test++) {
+		int llen = 0; /* line length */
+
+		/* avoid leaving empty lines below, this will insert holes into
+		 * test numbers.
+		 */
+		switch (test + __LINE__ + 1) {
+		CASE_TEST(argc);             EXPECT_GE(1, test_argc, 1); break;
+		CASE_TEST(argv_addr);        EXPECT_PTRGT(1, test_argv, brk); break;
+		CASE_TEST(argv_environ);     EXPECT_PTRLT(1, test_argv, environ); break;
+		CASE_TEST(argv_total);       EXPECT_EQ(1, environ - test_argv - 1, test_argc ?: 1); break;
+		CASE_TEST(argv0_addr);       EXPECT_PTRGT(1, argv0, brk); break;
+		CASE_TEST(argv0_str);        EXPECT_STRNZ(1, argv0 > brk ? argv0 : NULL); break;
+		CASE_TEST(argv0_len);        EXPECT_GE(1,  argv0 > brk ? strlen(argv0) : 0, 1); break;
+		CASE_TEST(environ_addr);     EXPECT_PTRGT(1, environ, brk); break;
+		CASE_TEST(environ_envp);     EXPECT_PTREQ(1, environ, test_envp); break;
+		CASE_TEST(environ_auxv);     EXPECT_PTRLT(test_auxv != (void *)-1, environ, test_auxv); break;
+		CASE_TEST(environ_total);    EXPECT_GE(test_auxv != (void *)-1, (void *)test_auxv - (void *)environ - 1, env_total); break;
+		CASE_TEST(environ_HOME);     EXPECT_PTRNZ(1, getenv("HOME")); break;
+		CASE_TEST(auxv_addr);        EXPECT_PTRGT(test_auxv != (void *)-1, test_auxv, brk); break;
+		CASE_TEST(auxv_AT_UID);      EXPECT_EQ(1, getauxval(AT_UID), getuid()); break;
+		CASE_TEST(constructor);      EXPECT_EQ(is_nolibc, constructor_test_value, 0x3); break;
+		CASE_TEST(linkage_errno);    EXPECT_PTREQ(1, linkage_test_errno_addr(), &errno); break;
+		CASE_TEST(linkage_constr);   EXPECT_EQ(1, linkage_test_constructor_test_value, 0x3); break;
+		case __LINE__:
+			return ret; /* must be last */
+		/* note: do not set any defaults so as to permit holes above */
+		}
+	}
+	return ret;
+}
+
+
+/* used by some syscall tests below */
+int test_getdents64(const char *dir)
+{
+	char buffer[4096];
+	int fd, ret;
+	int err;
+
+	ret = fd = open(dir, O_RDONLY | O_DIRECTORY, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = getdents64(fd, (void *)buffer, sizeof(buffer));
+	err = errno;
+	close(fd);
+
+	errno = err;
+	return ret;
+}
+
+static int test_dirent(void)
+{
+	int comm = 0, cmdline = 0;
+	struct dirent dirent, *result;
+	DIR *dir;
+	int ret;
+
+	dir = opendir("/proc/self");
+	if (!dir)
+		return 1;
+
+	while (1) {
+		errno = 0;
+		ret = readdir_r(dir, &dirent, &result);
+		if (ret != 0)
+			return 1;
+		if (!result)
+			break;
+
+		if (strcmp(dirent.d_name, "comm") == 0)
+			comm++;
+		else if (strcmp(dirent.d_name, "cmdline") == 0)
+			cmdline++;
+	}
+
+	if (errno)
+		return 1;
+
+	ret = closedir(dir);
+	if (ret)
+		return 1;
+
+	if (comm != 1 || cmdline != 1)
+		return 1;
+
+	return 0;
+}
+
+int test_getrandom(void)
+{
+	uint64_t rng = 0;
+	ssize_t ret;
+
+	ret = getrandom(&rng, sizeof(rng), GRND_NONBLOCK);
+	if (ret == -1 && errno == EAGAIN)
+		return 0; /* No entropy available yet */
+
+	if (ret != sizeof(rng))
+		return ret;
+
+	if (!rng) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	return 0;
+}
+
+int test_getpagesize(void)
+{
+	int x = getpagesize();
+	int c;
+
+	if (x < 0)
+		return x;
+
+#if defined(__x86_64__) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
+	/*
+	 * x86 family is always 4K page.
+	 */
+	c = (x == 4096);
+#elif defined(__aarch64__)
+	/*
+	 * Linux aarch64 supports three values of page size: 4K, 16K, and 64K
+	 * which are selected at kernel compilation time.
+	 */
+	c = (x == 4096 || x == (16 * 1024) || x == (64 * 1024));
+#else
+	/*
+	 * Assuming other architectures must have at least 4K page.
+	 */
+	c = (x >= 4096);
+#endif
+
+	return !c;
+}
+
+int test_file_stream(void)
+{
+	FILE *f;
+	int r;
+
+	f = fopen("/dev/null", "r");
+	if (!f)
+		return -1;
+
+	errno = 0;
+	r = fwrite("foo", 1, 3, f);
+	if (r != 0 || errno != EBADF) {
+		fclose(f);
+		return -1;
+	}
+
+	r = fclose(f);
+	if (r == EOF)
+		return -1;
+
+	return 0;
+}
+
+enum fork_type {
+	FORK_STANDARD,
+	FORK_VFORK,
+};
+
+int test_fork(enum fork_type type)
+{
+	int status;
+	pid_t pid;
+
+	/* flush the printf buffer to avoid child flush it */
+	fflush(stdout);
+	fflush(stderr);
+
+	switch (type) {
+	case FORK_STANDARD:
+		pid = fork();
+		break;
+	case FORK_VFORK:
+		pid = vfork();
+		break;
+	default:
+		return 1;
+	}
+
+	switch (pid) {
+	case -1:
+		return 1;
+
+	case 0:
+		_exit(123);
+
+	default:
+		pid = waitpid(pid, &status, 0);
+
+		return pid == -1 || !WIFEXITED(status) || WEXITSTATUS(status) != 123;
+	}
+}
+
+int test_stat_timestamps(void)
+{
+	struct stat st;
+
+	if (sizeof(st.st_atim.tv_sec) != sizeof(st.st_atime))
+		return 1;
+
+	if (stat("/proc/self/", &st) && stat(argv0, &st) && stat("/", &st))
+		return 1;
+
+	if (st.st_atim.tv_sec != st.st_atime || st.st_atim.tv_nsec > 1000000000)
+		return 1;
+
+	if (st.st_mtim.tv_sec != st.st_mtime || st.st_mtim.tv_nsec > 1000000000)
+		return 1;
+
+	if (st.st_ctim.tv_sec != st.st_ctime || st.st_ctim.tv_nsec > 1000000000)
+		return 1;
+
+	return 0;
+}
+
+int test_timer(void)
+{
+	struct itimerspec timerspec;
+	struct sigevent evp;
+	timer_t timer;
+	int ret;
+
+	evp.sigev_notify = SIGEV_NONE;
+
+	ret = timer_create(CLOCK_MONOTONIC, &evp, &timer);
+	if (ret)
+		return ret;
+
+	timerspec = (struct itimerspec) {
+		.it_value.tv_sec = 1000000,
+	};
+	ret = timer_settime(timer, 0, &timerspec, NULL);
+	if (ret)
+		goto err;
+
+	timerspec = (struct itimerspec) {
+		.it_value.tv_sec = -1,
+		.it_value.tv_nsec = -1,
+		.it_interval.tv_sec = -1,
+		.it_interval.tv_nsec = -1,
+	};
+	ret = timer_gettime(timer, &timerspec);
+	if (ret)
+		goto err;
+
+	errno = EINVAL;
+	ret = -1;
+
+	if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec)
+		goto err;
+
+	if (timerspec.it_value.tv_sec > 1000000)
+		goto err;
+
+	ret = timer_delete(timer);
+	if (ret)
+		return ret;
+
+	return 0;
+
+err:
+	timer_delete(timer);
+	return ret;
+}
+
+int test_timerfd(void)
+{
+	struct itimerspec timerspec;
+	int timer, ret;
+
+	timer = timerfd_create(CLOCK_MONOTONIC, 0);
+	if (timer == -1)
+		return -1;
+
+	timerspec = (struct itimerspec) {
+		.it_value.tv_sec = 1000000,
+	};
+	ret = timerfd_settime(timer, 0, &timerspec, NULL);
+	if (ret)
+		goto err;
+
+	timerspec = (struct itimerspec) {
+		.it_value.tv_sec = -1,
+		.it_value.tv_nsec = -1,
+		.it_interval.tv_sec = -1,
+		.it_interval.tv_nsec = -1,
+	};
+	ret = timerfd_gettime(timer, &timerspec);
+	if (ret)
+		goto err;
+
+	errno = EINVAL;
+	ret = -1;
+
+	if (timerspec.it_interval.tv_sec || timerspec.it_interval.tv_nsec)
+		goto err;
+
+	if (timerspec.it_value.tv_sec > 1000000)
+		goto err;
+
+	ret = close(timer);
+	if (ret)
+		return ret;
+
+	return 0;
+
+err:
+	close(timer);
+	return ret;
+}
+
+int test_uname(void)
+{
+	struct utsname buf;
+	char osrelease[sizeof(buf.release)];
+	ssize_t r;
+	int fd;
+
+	memset(&buf.domainname, 'P', sizeof(buf.domainname));
+
+	if (uname(&buf))
+		return 1;
+
+	if (strncmp("Linux", buf.sysname, sizeof(buf.sysname)))
+		return 1;
+
+	fd = open("/proc/sys/kernel/osrelease", O_RDONLY);
+	if (fd == -1)
+		return 1;
+
+	r = read(fd, osrelease, sizeof(osrelease));
+	if (r == -1)
+		return 1;
+
+	close(fd);
+
+	if (osrelease[r - 1] == '\n')
+		r--;
+
+	/* Validate one of the later fields to ensure field sizes are correct */
+	if (strncmp(osrelease, buf.release, r))
+		return 1;
+
+	/* Ensure the field domainname is set, it is missing from struct old_utsname */
+	if (strnlen(buf.domainname, sizeof(buf.domainname)) == sizeof(buf.domainname))
+		return 1;
+
+	return 0;
+}
+
+int test_mmap_munmap(void)
+{
+	int ret, fd, i, page_size;
+	void *mem;
+	size_t file_size, length, mem_length;
+	off_t offset, pa_offset;
+	struct stat stat_buf;
+	const char * const files[] = {
+		"/dev/zero",
+		"/proc/1/exe", "/proc/self/exe",
+		argv0,
+		NULL
+	};
+
+	page_size = getpagesize();
+	if (page_size < 0)
+		return 1;
+
+	/* find a right file to mmap, existed and accessible */
+	for (i = 0; files[i] != NULL; i++) {
+		ret = fd = open(files[i], O_RDONLY);
+		if (ret == -1)
+			continue;
+		else
+			break;
+	}
+	if (ret == -1)
+		return 1;
+
+	ret = stat(files[i], &stat_buf);
+	if (ret == -1)
+		goto end;
+
+	/* file size of the special /dev/zero is 0, let's assign one manually */
+	if (i == 0)
+		file_size = 3*page_size;
+	else
+		file_size = stat_buf.st_size;
+
+	offset = file_size - 1;
+	if (offset < 0)
+		offset = 0;
+	length = file_size - offset;
+	pa_offset = offset & ~(page_size - 1);
+	mem_length = length + offset - pa_offset;
+
+	mem = mmap(NULL, mem_length, PROT_READ, MAP_SHARED, fd, pa_offset);
+	if (mem == MAP_FAILED) {
+		ret = 1;
+		goto end;
+	}
+
+	mem = mremap(mem, mem_length, mem_length * 2, MREMAP_MAYMOVE, 0);
+	if (mem == MAP_FAILED) {
+		munmap(mem, mem_length);
+		ret = 1;
+		goto end;
+	}
+
+	ret = munmap(mem, mem_length * 2);
+
+end:
+	close(fd);
+	return !!ret;
+}
+
+int test_pipe(void)
+{
+	const char *const msg = "hello, nolibc";
+	int pipefd[2];
+	char buf[32];
+	size_t len;
+
+	if (pipe(pipefd) == -1)
+		return 1;
+
+	write(pipefd[1], msg, strlen(msg));
+	close(pipefd[1]);
+	len = read(pipefd[0], buf, sizeof(buf));
+	close(pipefd[0]);
+
+	if (len != strlen(msg))
+		return 1;
+
+	return !!memcmp(buf, msg, len);
+}
+
+int test_rlimit(void)
+{
+	struct rlimit rlim = {
+		.rlim_cur = 1 << 20,
+		.rlim_max = 1 << 21,
+	};
+	int ret;
+
+	ret = setrlimit(RLIMIT_CORE, &rlim);
+	if (ret)
+		return -1;
+
+	rlim.rlim_cur = 0;
+	rlim.rlim_max = 0;
+
+	ret = getrlimit(RLIMIT_CORE, &rlim);
+	if (ret)
+		return -1;
+
+	if (rlim.rlim_cur != 1 << 20)
+		return -1;
+	if (rlim.rlim_max != 1 << 21)
+		return -1;
+
+	return 0;
+}
+
+int test_openat(void)
+{
+	int dev, null;
+
+	dev = openat(AT_FDCWD, "/dev", O_DIRECTORY);
+	if (dev < 0)
+		return -1;
+
+	null = openat(dev, "null", O_RDONLY);
+	close(dev);
+	if (null < 0)
+		return -1;
+
+	close(null);
+	return 0;
+}
+
+int test_namespace(void)
+{
+	int original_ns, new_ns, ret;
+	ino_t original_ns_ino;
+	struct stat stat_buf;
+
+	original_ns = open("/proc/self/ns/uts", O_RDONLY);
+	if (original_ns == -1)
+		return -1;
+
+	ret = fstat(original_ns, &stat_buf);
+	if (ret)
+		goto out;
+
+	original_ns_ino = stat_buf.st_ino;
+
+	ret = unshare(CLONE_NEWUTS);
+	if (ret)
+		goto out;
+
+	new_ns = open("/proc/self/ns/uts", O_RDONLY);
+	if (new_ns == -1) {
+		ret = new_ns;
+		goto out;
+	}
+
+	ret = fstat(new_ns, &stat_buf);
+	close(new_ns);
+	if (ret)
+		goto out;
+
+	if (stat_buf.st_ino == original_ns_ino) {
+		errno = EINVAL;
+		ret = -1;
+		goto out;
+	}
+
+	ret = setns(original_ns, CLONE_NEWUTS);
+	if (ret)
+		goto out;
+
+	new_ns = open("/proc/self/ns/uts", O_RDONLY);
+	if (new_ns == -1) {
+		ret = new_ns;
+		goto out;
+	}
+
+	ret = fstat(new_ns, &stat_buf);
+	if (ret)
+		goto out;
+
+	close(new_ns);
+
+	if (stat_buf.st_ino != original_ns_ino) {
+		errno = EINVAL;
+		ret = -1;
+		goto out;
+	}
+
+	ret = 0;
+
+out:
+	close(original_ns);
+	return ret;
+}
+
+/* Run syscall tests between IDs <min> and <max>.
+ * Return 0 on success, non-zero on failure.
+ */
+int run_syscall(int min, int max)
+{
+	struct timeval tv;
+	struct timezone tz;
+	struct timespec ts;
+	struct stat stat_buf;
+	int euid0;
+	int proc;
+	int test;
+	int tmp;
+	struct iovec iov_one = {
+		.iov_base = &tmp,
+		.iov_len = 1,
+	};
+	int ret = 0;
+	void *p1, *p2;
+	int has_gettid = 1;
+	int has_brk;
+
+	/* <proc> indicates whether or not /proc is mounted */
+	proc = stat("/proc", &stat_buf) == 0;
+
+	/* this will be used to skip certain tests that can't be run unprivileged */
+	euid0 = geteuid() == 0;
+
+	/* from 2.30, glibc provides gettid() */
+#if defined(__GLIBC_MINOR__) && defined(__GLIBC__)
+	has_gettid = __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 30);
+#endif
+
+	/* on musl setting brk()/sbrk() always fails */
+	has_brk = brk(0) == 0;
+
+	for (test = min; test >= 0 && test <= max; test++) {
+		int llen = 0; /* line length */
+
+		/* avoid leaving empty lines below, this will insert holes into
+		 * test numbers.
+		 */
+		switch (test + __LINE__ + 1) {
+		CASE_TEST(access);            EXPECT_SYSZR(proc, access("/proc/self", R_OK)); break;
+		CASE_TEST(access_bad);        EXPECT_SYSER(proc, access("/proc/self", W_OK), -1, EPERM); break;
+		CASE_TEST(clock_getres);      EXPECT_SYSZR(1, clock_getres(CLOCK_MONOTONIC, &ts)); break;
+		CASE_TEST(clock_gettime);     EXPECT_SYSZR(1, clock_gettime(CLOCK_MONOTONIC, &ts)); break;
+		CASE_TEST(clock_settime);     EXPECT_SYSER(1, clock_settime(CLOCK_MONOTONIC, &ts), -1, EINVAL); break;
+		CASE_TEST(getpid);            EXPECT_SYSNE(1, getpid(), -1); break;
+		CASE_TEST(getppid);           EXPECT_SYSNE(1, getppid(), -1); break;
+		CASE_TEST(gettid);            EXPECT_SYSNE(has_gettid, gettid(), -1); break;
+		CASE_TEST(getpgid_self);      EXPECT_SYSNE(1, getpgid(0), -1); break;
+		CASE_TEST(getpgid_bad);       EXPECT_SYSER(1, getpgid(-1), -1, ESRCH); break;
+		CASE_TEST(kill_0);            EXPECT_SYSZR(1, kill(getpid(), 0)); break;
+		CASE_TEST(kill_CONT);         EXPECT_SYSZR(1, kill(getpid(), 0)); break;
+		CASE_TEST(kill_BADPID);       EXPECT_SYSER(1, kill(INT_MAX, 0), -1, ESRCH); break;
+		CASE_TEST(sbrk_0);            EXPECT_PTRNE(has_brk, sbrk(0), (void *)-1); break;
+		CASE_TEST(sbrk);              if ((p1 = p2 = sbrk(4096)) != (void *)-1) p2 = sbrk(-4096); EXPECT_SYSZR(has_brk, (p2 == (void *)-1) || p2 == p1); break;
+		CASE_TEST(brk);               EXPECT_SYSZR(has_brk, brk(sbrk(0))); break;
+		CASE_TEST(chdir_root);        EXPECT_SYSZR(1, chdir("/")); chdir(getenv("PWD")); break;
+		CASE_TEST(chdir_dot);         EXPECT_SYSZR(1, chdir(".")); break;
+		CASE_TEST(chdir_blah);        EXPECT_SYSER(1, chdir("/blah"), -1, ENOENT); break;
+		CASE_TEST(chmod_argv0);       EXPECT_SYSZR(1, chmod(argv0, 0555)); break;
+		CASE_TEST(chmod_self);        EXPECT_SYSER(proc, chmod("/proc/self", 0555), -1, EPERM); break;
+		CASE_TEST(chown_self);        EXPECT_SYSER(proc, chown("/proc/self", 0, 0), -1, EPERM); break;
+		CASE_TEST(chroot_root);       EXPECT_SYSZR(euid0, chroot("/")); break;
+		CASE_TEST(chroot_blah);       EXPECT_SYSER(1, chroot("/proc/self/blah"), -1, ENOENT); break;
+		CASE_TEST(chroot_exe);        EXPECT_SYSER(1, chroot(argv0), -1, ENOTDIR); break;
+		CASE_TEST(clock_nanosleep);   ts.tv_nsec = -1; EXPECT_EQ(1, EINVAL, clock_nanosleep(CLOCK_REALTIME, 0, &ts, NULL)); break;
+		CASE_TEST(close_m1);          EXPECT_SYSER(1, close(-1), -1, EBADF); break;
+		CASE_TEST(close_dup);         EXPECT_SYSZR(1, close(dup(0))); break;
+		CASE_TEST(dup_0);             tmp = dup(0);  EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
+		CASE_TEST(dup_m1);            tmp = dup(-1); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
+		CASE_TEST(dup2_0);            tmp = dup2(0, 100);  EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
+		CASE_TEST(dup2_m1);           tmp = dup2(-1, 100); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
+		CASE_TEST(dup3_0);            tmp = dup3(0, 100, 0);  EXPECT_SYSNE(1, tmp, -1); close(tmp); break;
+		CASE_TEST(dup3_m1);           tmp = dup3(-1, 100, 0); EXPECT_SYSER(1, tmp, -1, EBADF); if (tmp != -1) close(tmp); break;
+		CASE_TEST(execve_root);       EXPECT_SYSER(1, execve("/", (char*[]){ [0] = "/", [1] = NULL }, NULL), -1, EACCES); break;
+		CASE_TEST(fchdir_stdin);      EXPECT_SYSER(1, fchdir(STDIN_FILENO), -1, ENOTDIR); break;
+		CASE_TEST(fchdir_badfd);      EXPECT_SYSER(1, fchdir(-1), -1, EBADF); break;
+		CASE_TEST(file_stream);       EXPECT_SYSZR(1, test_file_stream()); break;
+		CASE_TEST(fork);              EXPECT_SYSZR(1, test_fork(FORK_STANDARD)); break;
+		CASE_TEST(getdents64_root);   EXPECT_SYSNE(1, test_getdents64("/"), -1); break;
+		CASE_TEST(getdents64_null);   EXPECT_SYSER(1, test_getdents64("/dev/null"), -1, ENOTDIR); break;
+		CASE_TEST(directories);       EXPECT_SYSZR(proc, test_dirent()); break;
+		CASE_TEST(getrandom);         EXPECT_SYSZR(1, test_getrandom()); break;
+		CASE_TEST(gettimeofday_tv);   EXPECT_SYSZR(1, gettimeofday(&tv, NULL)); break;
+		CASE_TEST(gettimeofday_tv_tz);EXPECT_SYSZR(1, gettimeofday(&tv, &tz)); break;
+		CASE_TEST(getpagesize);       EXPECT_SYSZR(1, test_getpagesize()); break;
+		CASE_TEST(ioctl_tiocinq);     EXPECT_SYSZR(1, ioctl(0, TIOCINQ, &tmp)); break;
+		CASE_TEST(link_root1);        EXPECT_SYSER(1, link("/", "/"), -1, EEXIST); break;
+		CASE_TEST(link_blah);         EXPECT_SYSER(1, link("/proc/self/blah", "/blah"), -1, ENOENT); break;
+		CASE_TEST(link_dir);          EXPECT_SYSER(euid0, link("/", "/blah"), -1, EPERM); break;
+		CASE_TEST(link_cross);        EXPECT_SYSER(proc, link("/proc/self/cmdline", "/blah"), -1, EXDEV); break;
+		CASE_TEST(lseek_m1);          EXPECT_SYSER(1, lseek(-1, 0, SEEK_SET), -1, EBADF); break;
+		CASE_TEST(lseek_0);           EXPECT_SYSER(1, lseek(0, 0, SEEK_SET), -1, ESPIPE); break;
+		CASE_TEST(mkdir_root);        EXPECT_SYSER(1, mkdir("/", 0755), -1, EEXIST); break;
+		CASE_TEST(mmap_bad);          EXPECT_PTRER(1, mmap(NULL, 0, PROT_READ, MAP_PRIVATE, 0, 0), MAP_FAILED, EINVAL); break;
+		CASE_TEST(munmap_bad);        EXPECT_SYSER(1, munmap(NULL, 0), -1, EINVAL); break;
+		CASE_TEST(mmap_munmap_good);  EXPECT_SYSZR(1, test_mmap_munmap()); break;
+		CASE_TEST(nanosleep);         ts.tv_nsec = -1; EXPECT_SYSER(1, nanosleep(&ts, NULL), -1, EINVAL); break;
+		CASE_TEST(open_tty);          EXPECT_SYSNE(1, tmp = open("/dev/null", O_RDONLY), -1); if (tmp != -1) close(tmp); break;
+		CASE_TEST(open_blah);         EXPECT_SYSER(1, tmp = open("/proc/self/blah", O_RDONLY), -1, ENOENT); if (tmp != -1) close(tmp); break;
+		CASE_TEST(openat_dir);        EXPECT_SYSZR(1, test_openat()); break;
+		CASE_TEST(pipe);              EXPECT_SYSZR(1, test_pipe()); break;
+		CASE_TEST(poll_null);         EXPECT_SYSZR(1, poll(NULL, 0, 0)); break;
+		CASE_TEST(poll_stdout);       EXPECT_SYSNE(1, ({ struct pollfd fds = { 1, POLLOUT, 0}; poll(&fds, 1, 0); }), -1); break;
+		CASE_TEST(poll_fault);        EXPECT_SYSER(1, poll(NULL, 1, 0), -1, EFAULT); break;
+		CASE_TEST(prctl);             EXPECT_SYSER(1, prctl(PR_SET_NAME, (unsigned long)NULL, 0, 0, 0), -1, EFAULT); break;
+		CASE_TEST(read_badf);         EXPECT_SYSER(1, read(-1, &tmp, 1), -1, EBADF); break;
+		CASE_TEST(rlimit);            EXPECT_SYSZR(1, test_rlimit()); break;
+		CASE_TEST(rmdir_blah);        EXPECT_SYSER(1, rmdir("/blah"), -1, ENOENT); break;
+		CASE_TEST(sched_yield);       EXPECT_SYSZR(1, sched_yield()); break;
+		CASE_TEST(select_null);       EXPECT_SYSZR(1, ({ struct timeval tv = { 0 }; select(0, NULL, NULL, NULL, &tv); })); break;
+		CASE_TEST(select_stdout);     EXPECT_SYSNE(1, ({ fd_set fds; FD_ZERO(&fds); FD_SET(1, &fds); select(2, NULL, &fds, NULL, NULL); }), -1); break;
+		CASE_TEST(select_fault);      EXPECT_SYSER(1, select(1, (void *)1, NULL, NULL, 0), -1, EFAULT); break;
+		CASE_TEST(stat_blah);         EXPECT_SYSER(1, stat("/proc/self/blah", &stat_buf), -1, ENOENT); break;
+		CASE_TEST(stat_fault);        EXPECT_SYSER(1, stat(NULL, &stat_buf), -1, EFAULT); break;
+		CASE_TEST(stat_timestamps);   EXPECT_SYSZR(1, test_stat_timestamps()); break;
+		CASE_TEST(symlink_root);      EXPECT_SYSER(1, symlink("/", "/"), -1, EEXIST); break;
+		CASE_TEST(timer);             EXPECT_SYSZR(1, test_timer()); break;
+		CASE_TEST(timerfd);           EXPECT_SYSZR(1, test_timerfd()); break;
+		CASE_TEST(uname);             EXPECT_SYSZR(proc, test_uname()); break;
+		CASE_TEST(uname_fault);       EXPECT_SYSER(1, uname(NULL), -1, EFAULT); break;
+		CASE_TEST(unlink_root);       EXPECT_SYSER(1, unlink("/"), -1, EISDIR); break;
+		CASE_TEST(unlink_blah);       EXPECT_SYSER(1, unlink("/proc/self/blah"), -1, ENOENT); break;
+		CASE_TEST(vfork);             EXPECT_SYSZR(1, test_fork(FORK_VFORK)); break;
+		CASE_TEST(wait_child);        EXPECT_SYSER(1, wait(&tmp), -1, ECHILD); break;
+		CASE_TEST(waitpid_min);       EXPECT_SYSER(1, waitpid(INT_MIN, &tmp, WNOHANG), -1, ESRCH); break;
+		CASE_TEST(waitpid_child);     EXPECT_SYSER(1, waitpid(getpid(), &tmp, WNOHANG), -1, ECHILD); break;
+		CASE_TEST(write_badf);        EXPECT_SYSER(1, write(-1, &tmp, 1), -1, EBADF); break;
+		CASE_TEST(write_zero);        EXPECT_SYSZR(1, write(1, &tmp, 0)); break;
+		CASE_TEST(readv_badf);        EXPECT_SYSER(1, readv(-1, &iov_one, 1), -1, EBADF); break;
+		CASE_TEST(readv_zero);        EXPECT_SYSZR(1, readv(1, NULL, 0)); break;
+		CASE_TEST(writev_badf);       EXPECT_SYSER(1, writev(-1, &iov_one, 1), -1, EBADF); break;
+		CASE_TEST(writev_zero);       EXPECT_SYSZR(1, writev(1, NULL, 0)); break;
+		CASE_TEST(syscall_noargs);    EXPECT_SYSEQ(1, syscall(__NR_getpid), getpid()); break;
+		CASE_TEST(syscall_args);      EXPECT_SYSER(1, syscall(__NR_statx, 0, NULL, 0, 0, NULL), -1, EFAULT); break;
+		CASE_TEST(namespace);         EXPECT_SYSZR(euid0 && proc, test_namespace()); break;
+		case __LINE__:
+			return ret; /* must be last */
+		/* note: do not set any defaults so as to permit holes above */
+		}
+	}
+	return ret;
+}
+
+int test_difftime(void)
+{
+	if (difftime(200., 100.) != 100.)
+		return 1;
+
+	if (difftime(100., 200.) != -100.)
+		return 1;
+
+	return 0;
+}
+
+int run_stdlib(int min, int max)
+{
+	int test;
+	int ret = 0;
+
+	for (test = min; test >= 0 && test <= max; test++) {
+		int llen = 0; /* line length */
+
+		/* For functions that take a long buffer, like strlcat()
+		 * Add some more chars after the \0, to test functions that overwrite the buffer set
+		 * the \0 at the exact right position.
+		 */
+		char buf[11] = "test123456";
+		buf[4] = '\0';
+
+
+		/* avoid leaving empty lines below, this will insert holes into
+		 * test numbers.
+		 */
+		switch (test + __LINE__ + 1) {
+		CASE_TEST(getenv_TERM);        EXPECT_STRNZ(1, getenv("TERM")); break;
+		CASE_TEST(getenv_blah);        EXPECT_STRZR(1, getenv("blah")); break;
+		CASE_TEST(setcmp_blah_blah);   EXPECT_EQ(1, strcmp("blah", "blah"), 0); break;
+		CASE_TEST(setcmp_blah_blah2);  EXPECT_NE(1, strcmp("blah", "blah2"), 0); break;
+		CASE_TEST(setncmp_blah_blah);  EXPECT_EQ(1, strncmp("blah", "blah", 10), 0); break;
+		CASE_TEST(setncmp_blah_blah4); EXPECT_EQ(1, strncmp("blah", "blah4", 4), 0); break;
+		CASE_TEST(setncmp_blah_blah5); EXPECT_NE(1, strncmp("blah", "blah5", 5), 0); break;
+		CASE_TEST(setncmp_blah_blah6); EXPECT_NE(1, strncmp("blah", "blah6", 6), 0); break;
+		CASE_TEST(strchr_foobar_o);    EXPECT_STREQ(1, strchr("foobar", 'o'), "oobar"); break;
+		CASE_TEST(strchr_foobar_z);    EXPECT_STRZR(1, strchr("foobar", 'z')); break;
+		CASE_TEST(strrchr_foobar_o);   EXPECT_STREQ(1, strrchr("foobar", 'o'), "obar"); break;
+		CASE_TEST(strrchr_foobar_z);   EXPECT_STRZR(1, strrchr("foobar", 'z')); break;
+		CASE_TEST(strlcat_0);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 0), buf, 3, "test"); break;
+		CASE_TEST(strlcat_1);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 1), buf, 4, "test"); break;
+		CASE_TEST(strlcat_5);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 5), buf, 7, "test"); break;
+		CASE_TEST(strlcat_6);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 6), buf, 7, "testb"); break;
+		CASE_TEST(strlcat_7);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 7), buf, 7, "testba"); break;
+		CASE_TEST(strlcat_8);          EXPECT_STRBUFEQ(is_nolibc, strlcat(buf, "bar", 8), buf, 7, "testbar"); break;
+		CASE_TEST(strlcpy_0);          EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 0), buf, 3, "test"); break;
+		CASE_TEST(strlcpy_1);          EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 1), buf, 3, ""); break;
+		CASE_TEST(strlcpy_2);          EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 2), buf, 3, "b"); break;
+		CASE_TEST(strlcpy_3);          EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 3), buf, 3, "ba"); break;
+		CASE_TEST(strlcpy_4);          EXPECT_STRBUFEQ(is_nolibc, strlcpy(buf, "bar", 4), buf, 3, "bar"); break;
+		CASE_TEST(strstr_foobar_foo);  EXPECT_STREQ(1, strstr("foobar", "foo"), "foobar"); break;
+		CASE_TEST(strstr_foobar_bar);  EXPECT_STREQ(1, strstr("foobar", "bar"), "bar"); break;
+		CASE_TEST(strstr_foobar_baz);  EXPECT_PTREQ(1, strstr("foobar", "baz"), NULL); break;
+		CASE_TEST(memcmp_20_20);       EXPECT_EQ(1, memcmp("aaa\x20", "aaa\x20", 4), 0); break;
+		CASE_TEST(memcmp_20_60);       EXPECT_LT(1, memcmp("aaa\x20", "aaa\x60", 4), 0); break;
+		CASE_TEST(memcmp_60_20);       EXPECT_GT(1, memcmp("aaa\x60", "aaa\x20", 4), 0); break;
+		CASE_TEST(memcmp_20_e0);       EXPECT_LT(1, memcmp("aaa\x20", "aaa\xe0", 4), 0); break;
+		CASE_TEST(memcmp_e0_20);       EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x20", 4), 0); break;
+		CASE_TEST(memcmp_80_e0);       EXPECT_LT(1, memcmp("aaa\x80", "aaa\xe0", 4), 0); break;
+		CASE_TEST(memcmp_e0_80);       EXPECT_GT(1, memcmp("aaa\xe0", "aaa\x80", 4), 0); break;
+		CASE_TEST(limit_int8_max);          EXPECT_EQ(1, INT8_MAX,         (int8_t)          0x7f); break;
+		CASE_TEST(limit_int8_min);          EXPECT_EQ(1, INT8_MIN,         (int8_t)          0x80); break;
+		CASE_TEST(limit_uint8_max);         EXPECT_EQ(1, UINT8_MAX,        (uint8_t)         0xff); break;
+		CASE_TEST(limit_int16_max);         EXPECT_EQ(1, INT16_MAX,        (int16_t)         0x7fff); break;
+		CASE_TEST(limit_int16_min);         EXPECT_EQ(1, INT16_MIN,        (int16_t)         0x8000); break;
+		CASE_TEST(limit_uint16_max);        EXPECT_EQ(1, UINT16_MAX,       (uint16_t)        0xffff); break;
+		CASE_TEST(limit_int32_max);         EXPECT_EQ(1, INT32_MAX,        (int32_t)         0x7fffffff); break;
+		CASE_TEST(limit_int32_min);         EXPECT_EQ(1, INT32_MIN,        (int32_t)         0x80000000); break;
+		CASE_TEST(limit_uint32_max);        EXPECT_EQ(1, UINT32_MAX,       (uint32_t)        0xffffffff); break;
+		CASE_TEST(limit_int64_max);         EXPECT_EQ(1, INT64_MAX,        (int64_t)         0x7fffffffffffffff); break;
+		CASE_TEST(limit_int64_min);         EXPECT_EQ(1, INT64_MIN,        (int64_t)         0x8000000000000000); break;
+		CASE_TEST(limit_uint64_max);        EXPECT_EQ(1, UINT64_MAX,       (uint64_t)        0xffffffffffffffff); break;
+		CASE_TEST(limit_int_least8_max);    EXPECT_EQ(1, INT_LEAST8_MAX,   (int_least8_t)    0x7f); break;
+		CASE_TEST(limit_int_least8_min);    EXPECT_EQ(1, INT_LEAST8_MIN,   (int_least8_t)    0x80); break;
+		CASE_TEST(limit_uint_least8_max);   EXPECT_EQ(1, UINT_LEAST8_MAX,  (uint_least8_t)   0xff); break;
+		CASE_TEST(limit_int_least16_max);   EXPECT_EQ(1, INT_LEAST16_MAX,  (int_least16_t)   0x7fff); break;
+		CASE_TEST(limit_int_least16_min);   EXPECT_EQ(1, INT_LEAST16_MIN,  (int_least16_t)   0x8000); break;
+		CASE_TEST(limit_uint_least16_max);  EXPECT_EQ(1, UINT_LEAST16_MAX, (uint_least16_t)  0xffff); break;
+		CASE_TEST(limit_int_least32_max);   EXPECT_EQ(1, INT_LEAST32_MAX,  (int_least32_t)   0x7fffffff); break;
+		CASE_TEST(limit_int_least32_min);   EXPECT_EQ(1, INT_LEAST32_MIN,  (int_least32_t)   0x80000000); break;
+		CASE_TEST(limit_uint_least32_max);  EXPECT_EQ(1, UINT_LEAST32_MAX, (uint_least32_t)  0xffffffffU); break;
+		CASE_TEST(limit_int_least64_min);   EXPECT_EQ(1, INT_LEAST64_MIN,  (int_least64_t)   0x8000000000000000LL); break;
+		CASE_TEST(limit_int_least64_max);   EXPECT_EQ(1, INT_LEAST64_MAX,  (int_least64_t)   0x7fffffffffffffffLL); break;
+		CASE_TEST(limit_uint_least64_max);  EXPECT_EQ(1, UINT_LEAST64_MAX, (uint_least64_t)  0xffffffffffffffffULL); break;
+		CASE_TEST(limit_int_fast8_max);     EXPECT_EQ(1, INT_FAST8_MAX,    (int_fast8_t)     0x7f); break;
+		CASE_TEST(limit_int_fast8_min);     EXPECT_EQ(1, INT_FAST8_MIN,    (int_fast8_t)     0x80); break;
+		CASE_TEST(limit_uint_fast8_max);    EXPECT_EQ(1, UINT_FAST8_MAX,   (uint_fast8_t)    0xff); break;
+		CASE_TEST(limit_int_fast16_min);    EXPECT_EQ(1, INT_FAST16_MIN,   (int_fast16_t)    SINT_MIN_OF_TYPE(int_fast16_t)); break;
+		CASE_TEST(limit_int_fast16_max);    EXPECT_EQ(1, INT_FAST16_MAX,   (int_fast16_t)    SINT_MAX_OF_TYPE(int_fast16_t)); break;
+		CASE_TEST(limit_uint_fast16_max);   EXPECT_EQ(1, UINT_FAST16_MAX,  (uint_fast16_t)   UINTPTR_MAX); break;
+		CASE_TEST(limit_int_fast32_min);    EXPECT_EQ(1, INT_FAST32_MIN,   (int_fast32_t)    SINT_MIN_OF_TYPE(int_fast32_t)); break;
+		CASE_TEST(limit_int_fast32_max);    EXPECT_EQ(1, INT_FAST32_MAX,   (int_fast32_t)    SINT_MAX_OF_TYPE(int_fast32_t)); break;
+		CASE_TEST(limit_uint_fast32_max);   EXPECT_EQ(1, UINT_FAST32_MAX,  (uint_fast32_t)   UINTPTR_MAX); break;
+		CASE_TEST(limit_int_fast64_min);    EXPECT_EQ(1, INT_FAST64_MIN,   (int_fast64_t)    INT64_MIN); break;
+		CASE_TEST(limit_int_fast64_max);    EXPECT_EQ(1, INT_FAST64_MAX,   (int_fast64_t)    INT64_MAX); break;
+		CASE_TEST(limit_uint_fast64_max);   EXPECT_EQ(1, UINT_FAST64_MAX,  (uint_fast64_t)   UINT64_MAX); break;
+		CASE_TEST(sizeof_long_sane);        EXPECT_EQ(1, sizeof(long) == 8 || sizeof(long) == 4, 1); break;
+		CASE_TEST(limit_intptr_min);        EXPECT_EQ(1, INTPTR_MIN,  sizeof(long) == 8 ? (intptr_t)  0x8000000000000000LL  : (intptr_t)  0x80000000); break;
+		CASE_TEST(limit_intptr_max);        EXPECT_EQ(1, INTPTR_MAX,  sizeof(long) == 8 ? (intptr_t)  0x7fffffffffffffffLL  : (intptr_t)  0x7fffffff); break;
+		CASE_TEST(limit_uintptr_max);       EXPECT_EQ(1, UINTPTR_MAX, sizeof(long) == 8 ? (uintptr_t) 0xffffffffffffffffULL : (uintptr_t) 0xffffffffU); break;
+		CASE_TEST(limit_ptrdiff_min);       EXPECT_EQ(1, PTRDIFF_MIN, sizeof(long) == 8 ? (ptrdiff_t) 0x8000000000000000LL  : (ptrdiff_t) 0x80000000); break;
+		CASE_TEST(limit_ptrdiff_max);       EXPECT_EQ(1, PTRDIFF_MAX, sizeof(long) == 8 ? (ptrdiff_t) 0x7fffffffffffffffLL  : (ptrdiff_t) 0x7fffffff); break;
+		CASE_TEST(limit_size_max);          EXPECT_EQ(1, SIZE_MAX,    sizeof(long) == 8 ? (size_t)    0xffffffffffffffffULL : (size_t)    0xffffffffU); break;
+		CASE_TEST(strtol_simple);           EXPECT_STRTOX(1, strtol, "35", 10, 35, -1, 0); break;
+		CASE_TEST(strtol_positive);         EXPECT_STRTOX(1, strtol, "+35", 10, 35, -1, 0); break;
+		CASE_TEST(strtol_negative);         EXPECT_STRTOX(1, strtol, "-35", 10, -35, -1, 0); break;
+		CASE_TEST(strtol_hex_auto);         EXPECT_STRTOX(1, strtol, "0xFF", 0, 255, -1, 0); break;
+		CASE_TEST(strtol_base36);           EXPECT_STRTOX(1, strtol, "12yZ", 36, 50507, -1, 0); break;
+		CASE_TEST(strtol_cutoff);           EXPECT_STRTOX(1, strtol, "1234567890", 8, 342391, 7, 0); break;
+		CASE_TEST(strtol_octal_auto);       EXPECT_STRTOX(1, strtol, "011", 0, 9, -1, 0); break;
+		CASE_TEST(strtol_hex_00);           EXPECT_STRTOX(1, strtol, "0x00", 16, 0, -1, 0); break;
+		CASE_TEST(strtol_hex_FF);           EXPECT_STRTOX(1, strtol, "FF", 16, 255, -1, 0); break;
+		CASE_TEST(strtol_hex_ff);           EXPECT_STRTOX(1, strtol, "ff", 16, 255, -1, 0); break;
+		CASE_TEST(strtol_hex_prefix);       EXPECT_STRTOX(1, strtol, "0xFF", 16, 255, -1, 0); break;
+		CASE_TEST(strtol_trailer);          EXPECT_STRTOX(1, strtol, "35foo", 10, 35, 2, 0); break;
+		CASE_TEST(strtol_overflow);         EXPECT_STRTOX(1, strtol, "0x8000000000000000", 16, LONG_MAX, -1, ERANGE); break;
+		CASE_TEST(strtol_underflow);        EXPECT_STRTOX(1, strtol, "-0x8000000000000001", 16, LONG_MIN, -1, ERANGE); break;
+		CASE_TEST(strtoul_negative);        EXPECT_STRTOX(1, strtoul, "-0x1", 16, ULONG_MAX, 4, 0); break;
+		CASE_TEST(strtoul_overflow);        EXPECT_STRTOX(1, strtoul, "0x10000000000000000", 16, ULONG_MAX, -1, ERANGE); break;
+		CASE_TEST(strerror_success);        EXPECT_STREQ(is_nolibc, strerror(0), "errno=0"); break;
+		CASE_TEST(strerror_EINVAL);         EXPECT_STREQ(is_nolibc, strerror(EINVAL), "errno=22"); break;
+		CASE_TEST(strerror_int_max);        EXPECT_STREQ(is_nolibc, strerror(INT_MAX), "errno=2147483647"); break;
+		CASE_TEST(strerror_int_min);        EXPECT_STREQ(is_nolibc, strerror(INT_MIN), "errno=-2147483648"); break;
+		CASE_TEST(tolower);                 EXPECT_EQ(1, tolower('A'), 'a'); break;
+		CASE_TEST(tolower_noop);            EXPECT_EQ(1, tolower('a'), 'a'); break;
+		CASE_TEST(toupper);                 EXPECT_EQ(1, toupper('a'), 'A'); break;
+		CASE_TEST(toupper_noop);            EXPECT_EQ(1, toupper('A'), 'A'); break;
+		CASE_TEST(abs);                     EXPECT_EQ(1, abs(-10), 10); break;
+		CASE_TEST(abs_noop);                EXPECT_EQ(1, abs(10), 10); break;
+		CASE_TEST(difftime);                EXPECT_ZR(1, test_difftime()); break;
+		CASE_TEST(memchr_foobar6_o);        EXPECT_STREQ(1, memchr("foobar", 'o', 6), "oobar"); break;
+		CASE_TEST(memchr_foobar3_b);        EXPECT_STRZR(1, memchr("foobar", 'b', 3)); break;
+
+		case __LINE__:
+			return ret; /* must be last */
+		/* note: do not set any defaults so as to permit holes above */
+		}
+	}
+	return ret;
+}
+
+#define EXPECT_VFPRINTF(c, expected, fmt, ...)				\
+	ret += expect_vfprintf(llen, c, expected, fmt, ##__VA_ARGS__)
+
+static int expect_vfprintf(int llen, int c, const char *expected, const char *fmt, ...)
+{
+	char buf[100];
+	va_list args;
+	ssize_t w;
+	int ret;
+
+
+	va_start(args, fmt);
+	/* Only allow writing 21 bytes, to test truncation */
+	w = vsnprintf(buf, 21, fmt, args);
+	va_end(args);
+
+	if (w != c) {
+		llen += printf(" written(%d) != %d", (int)w, c);
+		result(llen, FAIL);
+		return 1;
+	}
+
+	llen += printf(" \"%s\" = \"%s\"", expected, buf);
+	ret = strncmp(expected, buf, c);
+
+	result(llen, ret ? FAIL : OK);
+	return ret;
+}
+
+static int test_scanf(void)
+{
+	unsigned long long ull;
+	unsigned long ul;
+	unsigned int u;
+	long long ll;
+	long l;
+	void *p;
+	int i;
+
+	/* return __LINE__ to point to the specific failure */
+
+	/* test EOF */
+	if (sscanf("", "foo") != EOF)
+		return __LINE__;
+
+	/* test simple literal without placeholder */
+	if (sscanf("foo", "foo") != 0)
+		return __LINE__;
+
+	/* test single placeholder */
+	if (sscanf("123", "%d", &i) != 1)
+		return __LINE__;
+
+	if (i != 123)
+		return __LINE__;
+
+	/* test multiple place holders and separators */
+	if (sscanf("a123b456c0x90", "a%db%uc%p", &i, &u, &p) != 3)
+		return __LINE__;
+
+	if (i != 123)
+		return __LINE__;
+
+	if (u != 456)
+		return __LINE__;
+
+	if (p != (void *)0x90)
+		return __LINE__;
+
+	/* test space handling */
+	if (sscanf("a    b1", "a b%d", &i) != 1)
+		return __LINE__;
+
+	if (i != 1)
+		return __LINE__;
+
+	/* test literal percent */
+	if (sscanf("a%1", "a%%%d", &i) != 1)
+		return __LINE__;
+
+	if (i != 1)
+		return __LINE__;
+
+	/* test stdint.h types */
+	if (sscanf("1|2|3|4|5|6",
+		   "%d|%ld|%lld|%u|%lu|%llu",
+		   &i, &l, &ll, &u, &ul, &ull) != 6)
+		return __LINE__;
+
+	if (i != 1 || l != 2 || ll != 3 ||
+	    u != 4 || ul != 5 || ull != 6)
+		return __LINE__;
+
+	return 0;
+}
+
+int test_strerror(void)
+{
+	char buf[100];
+	ssize_t ret;
+
+	memset(buf, 'A', sizeof(buf));
+
+	errno = EINVAL;
+	ret = snprintf(buf, sizeof(buf), "%m");
+	if (is_nolibc) {
+		if (ret < 6 || memcmp(buf, "errno=", 6))
+			return 1;
+	}
+
+	return 0;
+}
+
+static int test_printf_error(void)
+{
+	int fd, ret, saved_errno;
+
+	fd = open("/dev/full", O_RDWR);
+	if (fd == -1)
+		return 1;
+
+	errno = 0;
+	ret = dprintf(fd, "foo");
+	saved_errno = errno;
+	close(fd);
+
+	if (ret != -1)
+		return 2;
+
+	if (saved_errno != ENOSPC)
+		return 3;
+
+	return 0;
+}
+
+static int run_printf(int min, int max)
+{
+	int test;
+	int ret = 0;
+
+	for (test = min; test >= 0 && test <= max; test++) {
+		int llen = 0; /* line length */
+
+		/* avoid leaving empty lines below, this will insert holes into
+		 * test numbers.
+		 */
+		switch (test + __LINE__ + 1) {
+		CASE_TEST(empty);        EXPECT_VFPRINTF(0, "", ""); break;
+		CASE_TEST(simple);       EXPECT_VFPRINTF(3, "foo", "foo"); break;
+		CASE_TEST(string);       EXPECT_VFPRINTF(3, "foo", "%s", "foo"); break;
+		CASE_TEST(number);       EXPECT_VFPRINTF(4, "1234", "%d", 1234); break;
+		CASE_TEST(negnumber);    EXPECT_VFPRINTF(5, "-1234", "%d", -1234); break;
+		CASE_TEST(unsigned);     EXPECT_VFPRINTF(5, "12345", "%u", 12345); break;
+		CASE_TEST(char);         EXPECT_VFPRINTF(1, "c", "%c", 'c'); break;
+		CASE_TEST(hex);          EXPECT_VFPRINTF(1, "f", "%x", 0xf); break;
+		CASE_TEST(pointer);      EXPECT_VFPRINTF(3, "0x1", "%p", (void *) 0x1); break;
+		CASE_TEST(uintmax_t);    EXPECT_VFPRINTF(20, "18446744073709551615", "%ju", 0xffffffffffffffffULL); break;
+		CASE_TEST(intmax_t);     EXPECT_VFPRINTF(20, "-9223372036854775807", "%jd", 0x8000000000000001LL); break;
+		CASE_TEST(truncation);   EXPECT_VFPRINTF(25, "01234567890123456789", "%s", "0123456789012345678901234"); break;
+		CASE_TEST(string_width); EXPECT_VFPRINTF(10, "         1", "%10s", "1"); break;
+		CASE_TEST(number_width); EXPECT_VFPRINTF(10, "         1", "%10d", 1); break;
+		CASE_TEST(width_trunc);  EXPECT_VFPRINTF(25, "                    ", "%25d", 1); break;
+		CASE_TEST(scanf);        EXPECT_ZR(1, test_scanf()); break;
+		CASE_TEST(strerror);     EXPECT_ZR(1, test_strerror()); break;
+		CASE_TEST(printf_error); EXPECT_ZR(1, test_printf_error()); break;
+		case __LINE__:
+			return ret; /* must be last */
+		/* note: do not set any defaults so as to permit holes above */
+		}
+	}
+	return ret;
+}
+
+__attribute__((no_sanitize("undefined")))
+static int smash_stack(void)
+{
+	char buf[100];
+	volatile char *ptr = buf;
+	size_t i;
+
+	for (i = 0; i < 200; i++)
+		ptr[i] = 'P';
+
+	return 1;
+}
+
+static int run_protection(int min __attribute__((unused)),
+			  int max __attribute__((unused)))
+{
+	pid_t pid;
+	int llen = 0, status;
+	struct rlimit rlimit = { 0, 0 };
+
+	llen += printf("0 -fstackprotector ");
+
+#if !defined(_NOLIBC_STACKPROTECTOR)
+	llen += printf("not supported");
+	result(llen, SKIPPED);
+	return 0;
+#endif
+
+#if defined(_NOLIBC_STACKPROTECTOR)
+	if (!__stack_chk_guard) {
+		llen += printf("__stack_chk_guard not initialized");
+		result(llen, FAIL);
+		return 1;
+	}
+#endif
+
+	pid = -1;
+	pid = fork();
+
+	switch (pid) {
+	case -1:
+		llen += printf("fork()");
+		result(llen, FAIL);
+		return 1;
+
+	case 0:
+		close(STDOUT_FILENO);
+		close(STDERR_FILENO);
+
+		prctl(PR_SET_DUMPABLE, 0, 0, 0, 0);
+		setrlimit(RLIMIT_CORE, &rlimit);
+		smash_stack();
+		return 1;
+
+	default:
+		pid = waitpid(pid, &status, 0);
+
+		if (pid == -1 || !WIFSIGNALED(status) || WTERMSIG(status) != SIGABRT) {
+			llen += printf("waitpid()");
+			result(llen, FAIL);
+			return 1;
+		}
+		result(llen, OK);
+		return 0;
+	}
+}
+
+/* prepare what needs to be prepared for pid 1 (stdio, /dev, /proc, etc) */
+int prepare(void)
+{
+	struct stat stat_buf;
+
+	/* It's possible that /dev doesn't even exist or was not mounted, so
+	 * we'll try to create it, mount it, or create minimal entries into it.
+	 * We want at least /dev/null and /dev/console.
+	 */
+	if (stat("/dev/.", &stat_buf) == 0 || mkdir("/dev", 0755) == 0) {
+		if (stat("/dev/console", &stat_buf) != 0 ||
+		    stat("/dev/null", &stat_buf) != 0 ||
+		    stat("/dev/zero", &stat_buf) != 0 ||
+		    stat("/dev/full", &stat_buf) != 0) {
+			/* try devtmpfs first, otherwise fall back to manual creation */
+			if (mount("/dev", "/dev", "devtmpfs", 0, 0) != 0) {
+				mknod("/dev/console", 0600 | S_IFCHR, makedev(5, 1));
+				mknod("/dev/null",    0666 | S_IFCHR, makedev(1, 3));
+				mknod("/dev/zero",    0666 | S_IFCHR, makedev(1, 5));
+				mknod("/dev/full",    0666 | S_IFCHR, makedev(1, 7));
+			}
+		}
+	}
+
+	/* If no /dev/console was found before calling init, stdio is closed so
+	 * we need to reopen it from /dev/console. If it failed above, it will
+	 * still fail here and we cannot emit a message anyway.
+	 */
+	if (close(dup(1)) == -1) {
+		int fd = open("/dev/console", O_RDWR);
+
+		if (fd >= 0) {
+			if (fd != 0)
+				dup2(fd, 0);
+			if (fd != 1)
+				dup2(fd, 1);
+			if (fd != 2)
+				dup2(fd, 2);
+			if (fd > 2)
+				close(fd);
+			puts("\nSuccessfully reopened /dev/console.");
+		}
+	}
+
+	/* try to mount /proc if not mounted. Silently fail otherwise */
+	if (stat("/proc/.", &stat_buf) == 0 || mkdir("/proc", 0755) == 0) {
+		if (stat("/proc/self", &stat_buf) != 0) {
+			/* If not mountable, remove /proc completely to avoid misuse */
+			if (mount("none", "/proc", "proc", 0, 0) != 0)
+				rmdir("/proc");
+		}
+	}
+
+	/* some tests rely on a writable /tmp */
+	mkdir("/tmp", 0755);
+
+	return 0;
+}
+
+/* This is the definition of known test names, with their functions */
+static const struct test test_names[] = {
+	/* add new tests here */
+	{ .name = "startup",    .func = run_startup    },
+	{ .name = "syscall",    .func = run_syscall    },
+	{ .name = "stdlib",     .func = run_stdlib     },
+	{ .name = "printf",     .func = run_printf     },
+	{ .name = "protection", .func = run_protection },
+	{ 0 }
+};
+
+static int is_setting_valid(char *test)
+{
+	int idx, len, test_len, valid = 0;
+	char delimiter;
+
+	if (!test)
+		return valid;
+
+	test_len = strlen(test);
+
+	for (idx = 0; test_names[idx].name; idx++) {
+		len = strlen(test_names[idx].name);
+		if (test_len < len)
+			continue;
+
+		if (strncmp(test, test_names[idx].name, len) != 0)
+			continue;
+
+		delimiter = test[len];
+		if (delimiter != ':' && delimiter != ',' && delimiter != '\0')
+			continue;
+
+		valid = 1;
+		break;
+	}
+
+	return valid;
+}
+
+int main(int argc, char **argv, char **envp)
+{
+	int min = 0;
+	int max = INT_MAX;
+	int ret = 0;
+	int err;
+	int idx;
+	char *test;
+
+	argv0 = argv[0];
+	test_argc = argc;
+	test_argv = argv;
+	test_envp = envp;
+
+	/* when called as init, it's possible that no console was opened, for
+	 * example if no /dev file system was provided. We'll check that fd#1
+	 * was opened, and if not we'll attempt to create and open /dev/console
+	 * and /dev/null that we'll use for later tests.
+	 */
+	if (getpid() == 1)
+		prepare();
+
+	/* the definition of a series of tests comes from either argv[1] or the
+	 * "NOLIBC_TEST" environment variable. It's made of a comma-delimited
+	 * series of test names and optional ranges:
+	 *    syscall:5-15[:.*],stdlib:8-10
+	 */
+	test = argv[1];
+	if (!is_setting_valid(test))
+		test = getenv("NOLIBC_TEST");
+
+	if (is_setting_valid(test)) {
+		char *comma, *colon, *dash, *value;
+
+		do {
+			comma = strchr(test, ',');
+			if (comma)
+				*(comma++) = '\0';
+
+			colon = strchr(test, ':');
+			if (colon)
+				*(colon++) = '\0';
+
+			for (idx = 0; test_names[idx].name; idx++) {
+				if (strcmp(test, test_names[idx].name) == 0)
+					break;
+			}
+
+			if (test_names[idx].name) {
+				/* The test was named, it will be called at least
+				 * once. We may have an optional range at <colon>
+				 * here, which defaults to the full range.
+				 */
+				do {
+					min = 0; max = INT_MAX;
+					value = colon;
+					if (value && *value) {
+						colon = strchr(value, ':');
+						if (colon)
+							*(colon++) = '\0';
+
+						dash = strchr(value, '-');
+						if (dash)
+							*(dash++) = '\0';
+
+						/* support :val: :min-max: :min-: :-max: */
+						if (*value)
+							min = atoi(value);
+						if (!dash)
+							max = min;
+						else if (*dash)
+							max = atoi(dash);
+
+						value = colon;
+					}
+
+					/* now's time to call the test */
+					printf("Running test '%s'\n", test_names[idx].name);
+					err = test_names[idx].func(min, max);
+					ret += err;
+					printf("Errors during this test: %d\n\n", err);
+				} while (colon && *colon);
+			} else
+				printf("Ignoring unknown test name '%s'\n", test);
+
+			test = comma;
+		} while (test && *test);
+	} else {
+		/* no test mentioned, run everything */
+		for (idx = 0; test_names[idx].name; idx++) {
+			printf("Running test '%s'\n", test_names[idx].name);
+			err = test_names[idx].func(min, max);
+			ret += err;
+			printf("Errors during this test: %d\n\n", err);
+		}
+	}
+
+	printf("Total number of errors: %d\n", ret);
+
+	if (getpid() == 1) {
+		/* we're running as init, there's no other process on the
+		 * system, thus likely started from a VM for a quick check.
+		 * Exiting will provoke a kernel panic that may be reported
+		 * as an error by Qemu or the hypervisor, while stopping
+		 * cleanly will often be reported as a success. This allows
+		 * to use the output of this program for bisecting kernels.
+		 */
+		printf("Leaving init with final status: %d\n", !!ret);
+		if (ret == 0)
+			reboot(RB_POWER_OFF);
+#if defined(__x86_64__)
+		/* QEMU started with "-device isa-debug-exit -no-reboot" will
+		 * exit with status code 2N+1 when N is written to 0x501. We
+		 * hard-code the syscall here as it's arch-dependent.
+		 */
+		else if (syscall(__NR_ioperm, 0x501, 1, 1) == 0)
+			__asm__ volatile ("outb %%al, %%dx" :: "d"(0x501), "a"(0));
+		/* if it does nothing, fall back to the regular panic */
+#endif
+	}
+
+	printf("Exiting with status %d\n", !!ret);
+	return !!ret;
+}
diff --git a/tools/testing/selftests/nolibc/run-tests.sh b/tools/testing/selftests/nolibc/run-tests.sh
new file mode 100755
index 000000000000..3917cfb8fdc4
--- /dev/null
+++ b/tools/testing/selftests/nolibc/run-tests.sh
@@ -0,0 +1,212 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Test runner for nolibc tests
+
+set -e
+
+trap 'echo Aborting...' 'ERR'
+
+crosstool_version=13.2.0
+hostarch=x86_64
+nproc=$(( $(nproc) + 2))
+cache_dir="${XDG_CACHE_HOME:-"$HOME"/.cache}"
+download_location="${cache_dir}/crosstools/"
+build_location="$(realpath "${cache_dir}"/nolibc-tests/)"
+perform_download=0
+test_mode=system
+werror=1
+llvm=
+all_archs=(
+	i386 x86_64 x32
+	arm64 arm armthumb
+	mips32le mips32be mipsn32le mipsn32be mips64le mips64be
+	ppc ppc64 ppc64le
+	riscv32 riscv64
+	s390x
+	loongarch
+	sparc32 sparc64
+	m68k
+	sh4
+)
+archs="${all_archs[@]}"
+
+TEMP=$(getopt -o 'j:d:c:b:a:m:pelh' -n "$0" -- "$@")
+
+eval set -- "$TEMP"
+unset TEMP
+
+print_usage() {
+	cat <<EOF
+Run nolibc testsuite for multiple architectures with crosstools
+
+Usage:
+ $0 [options] <architectures>
+
+Known architectures:
+ ${archs}
+
+Options:
+ -j [N]         Allow N jobs at once (default: ${nproc})
+ -p             Allow download of toolchains
+ -d [DIR]       Download location for toolchains (default: ${download_location})
+ -c [VERSION]   Version of toolchains to use (default: ${crosstool_version})
+ -a [ARCH]      Host architecture of toolchains to use (default: ${hostarch})
+ -b [DIR]       Build location (default: ${build_location})
+ -m [MODE]      Test mode user/system (default: ${test_mode})
+ -e             Disable -Werror
+ -l             Build with LLVM/clang
+EOF
+}
+
+while true; do
+	case "$1" in
+		'-j')
+			nproc="$2"
+			shift 2; continue ;;
+		'-p')
+			perform_download=1
+			shift; continue ;;
+		'-d')
+			download_location="$2"
+			shift 2; continue ;;
+		'-c')
+			crosstool_version="$2"
+			shift 2; continue ;;
+		'-a')
+			hostarch="$2"
+			shift 2; continue ;;
+		'-b')
+			build_location="$(realpath "$2")"
+			shift 2; continue ;;
+		'-m')
+			test_mode="$2"
+			shift 2; continue ;;
+		'-e')
+			werror=0
+			shift; continue ;;
+		'-l')
+			llvm=1
+			shift; continue ;;
+		'-h')
+			print_usage
+			exit 0
+			;;
+		'--')
+			shift; break ;;
+		*)
+			echo 'Internal error!' >&2; exit 1 ;;
+	esac
+done
+
+if [[ -n "$*" ]]; then
+	archs="$*"
+fi
+
+crosstool_arch() {
+	case "$1" in
+	arm64) echo aarch64;;
+	armthumb) echo arm;;
+	ppc) echo powerpc;;
+	ppc64) echo powerpc64;;
+	ppc64le) echo powerpc64;;
+	riscv) echo riscv64;;
+	loongarch) echo loongarch64;;
+	mips*) echo mips;;
+	s390*) echo s390;;
+	sparc*) echo sparc64;;
+	x32*) echo x86_64;;
+	*) echo "$1";;
+	esac
+}
+
+crosstool_abi() {
+	case "$1" in
+	arm | armthumb) echo linux-gnueabi;;
+	*) echo linux;;
+	esac
+}
+
+download_crosstool() {
+	arch="$(crosstool_arch "$1")"
+	abi="$(crosstool_abi "$1")"
+
+	archive_name="${hostarch}-gcc-${crosstool_version}-nolibc-${arch}-${abi}.tar.gz"
+	url="https://mirrors.edge.kernel.org/pub/tools/crosstool/files/bin/${hostarch}/${crosstool_version}/${archive_name}"
+	archive="${download_location}${archive_name}"
+	stamp="${archive}.stamp"
+
+	[ -f "${stamp}" ] && return
+
+	echo "Downloading crosstools ${arch} ${crosstool_version}"
+	mkdir -p "${download_location}"
+	curl -o "${archive}" --fail --continue-at - "${url}"
+	tar -C "${download_location}" -xf "${archive}"
+	touch "${stamp}"
+}
+
+# capture command output, print it on failure
+# mimics chronic(1) from moreutils
+function swallow_output() {
+	if ! OUTPUT="$("$@" 2>&1)"; then
+		echo "$OUTPUT"
+		return 1
+	fi
+	return 0
+}
+
+test_arch() {
+	arch=$1
+	ct_arch=$(crosstool_arch "$arch")
+	ct_abi=$(crosstool_abi "$1")
+
+	if [ ! -d "${download_location}gcc-${crosstool_version}-nolibc/${ct_arch}-${ct_abi}/bin/." ]; then
+		echo "No toolchain found in ${download_location}gcc-${crosstool_version}-nolibc/${ct_arch}-${ct_abi}."
+		echo "Did you install the toolchains or set the correct arch ? Rerun with -h for help."
+		return 1
+	fi
+
+	cross_compile=$(realpath "${download_location}gcc-${crosstool_version}-nolibc/${ct_arch}-${ct_abi}/bin/${ct_arch}-${ct_abi}-")
+	build_dir="${build_location}/${arch}"
+	if [ "$werror" -ne 0 ]; then
+		CFLAGS_EXTRA="$CFLAGS_EXTRA -Werror -Wl,--fatal-warnings"
+	fi
+	MAKE=(make -f Makefile.nolibc -j"${nproc}" XARCH="${arch}" CROSS_COMPILE="${cross_compile}" LLVM="${llvm}" O="${build_dir}")
+
+	case "$test_mode" in
+		'system')
+			test_target=run
+			;;
+		'user')
+			test_target=run-user
+			;;
+		*)
+			echo "Unknown mode $test_mode"
+			exit 1
+	esac
+	printf '%-15s' "$arch:"
+	if [ "$arch" = "m68k" -o "$arch" = "sh4" ] && [ "$llvm" = "1" ]; then
+		echo "Unsupported configuration"
+		return
+	fi
+	if [ "$arch" = "x32" ] && [ "$test_mode" = "user" ]; then
+		echo "Unsupported configuration"
+		return
+	fi
+
+	mkdir -p "$build_dir"
+	swallow_output "${MAKE[@]}" defconfig
+	swallow_output "${MAKE[@]}" CFLAGS_EXTRA="$CFLAGS_EXTRA" "$test_target" V=1
+	cp run.out run.out."${arch}"
+	"${MAKE[@]}" report | grep passed
+}
+
+if [ "$perform_download" -ne 0 ]; then
+	for arch in $archs; do
+		download_crosstool "$arch"
+	done
+fi
+
+for arch in $archs; do
+	test_arch "$arch"
+done
diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
new file mode 100755
index 000000000000..020137b61407
--- /dev/null
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -0,0 +1,631 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+# Copyright (c) 2016 Microsemi. All Rights Reserved.
+#
+# Author: Logan Gunthorpe <logang@deltatee.com>
+
+REMOTE_HOST=
+LIST_DEVS=FALSE
+
+DEBUGFS=${DEBUGFS-/sys/kernel/debug}
+
+PERF_RUN_ORDER=32
+MAX_MW_SIZE=0
+RUN_DMA_TESTS=
+DONT_CLEANUP=
+MW_SIZE=65536
+
+function show_help()
+{
+	echo "Usage: $0 [OPTIONS] LOCAL_DEV REMOTE_DEV"
+	echo "Run tests on a pair of NTB endpoints."
+	echo
+	echo "If the NTB device loops back to the same host then,"
+	echo "just specifying the two PCI ids on the command line is"
+	echo "sufficient. Otherwise, if the NTB link spans two hosts"
+	echo "use the -r option to specify the hostname for the remote"
+	echo "device. SSH will then be used to test the remote side."
+	echo "An SSH key between the root users of the host would then"
+	echo "be highly recommended."
+	echo
+	echo "Options:"
+	echo "  -C              don't cleanup ntb modules on exit"
+	echo "  -h              show this help message"
+	echo "  -l              list available local and remote PCI ids"
+	echo "  -r REMOTE_HOST  specify the remote's hostname to connect"
+	echo "                  to for the test (using ssh)"
+	echo "  -m MW_SIZE      memory window size for ntb_tool"
+	echo "                  (default: $MW_SIZE)"
+	echo "  -d              run dma tests for ntb_perf"
+	echo "  -p ORDER        total data order for ntb_perf"
+	echo "                  (default: $PERF_RUN_ORDER)"
+	echo "  -w MAX_MW_SIZE  maxmium memory window size for ntb_perf"
+	echo
+}
+
+function parse_args()
+{
+	OPTIND=0
+	while getopts "b:Cdhlm:r:p:w:" opt; do
+		case "$opt" in
+		C)  DONT_CLEANUP=1 ;;
+		d)  RUN_DMA_TESTS=1 ;;
+		h)  show_help; exit 0 ;;
+		l)  LIST_DEVS=TRUE ;;
+		m)  MW_SIZE=${OPTARG} ;;
+		r)  REMOTE_HOST=${OPTARG} ;;
+		p)  PERF_RUN_ORDER=${OPTARG} ;;
+		w)  MAX_MW_SIZE=${OPTARG} ;;
+		\?)
+		    echo "Invalid option: -$OPTARG" >&2
+		    exit 1
+		    ;;
+		esac
+	done
+}
+
+parse_args "$@"
+shift $((OPTIND-1))
+LOCAL_DEV=$1
+shift
+parse_args "$@"
+shift $((OPTIND-1))
+REMOTE_DEV=$1
+shift
+parse_args "$@"
+
+set -e
+
+function _modprobe()
+{
+	modprobe "$@" || return 1
+
+	if [[ "$REMOTE_HOST" != "" ]]; then
+		ssh "$REMOTE_HOST" modprobe "$@" || return 1
+	fi
+}
+
+function split_remote()
+{
+	VPATH=$1
+	REMOTE=
+
+	if [[ "$VPATH" == *":/"* ]]; then
+		REMOTE=${VPATH%%:*}
+		VPATH=${VPATH#*:}
+	fi
+}
+
+function read_file()
+{
+	split_remote $1
+	if [[ "$REMOTE" != "" ]]; then
+		ssh "$REMOTE" cat "$VPATH"
+	else
+		cat "$VPATH"
+	fi
+}
+
+function write_file()
+{
+	split_remote $2
+	VALUE=$1
+
+	if [[ "$REMOTE" != "" ]]; then
+		ssh "$REMOTE" "echo \"$VALUE\" > \"$VPATH\""
+	else
+		echo "$VALUE" > "$VPATH"
+	fi
+}
+
+function check_file()
+{
+	split_remote $1
+
+	if [[ "$REMOTE" != "" ]]; then
+		ssh "$REMOTE" "[[ -e ${VPATH} ]]"
+	else
+		[[ -e ${VPATH} ]]
+	fi
+}
+
+function subdirname()
+{
+	echo $(basename $(dirname $1)) 2> /dev/null
+}
+
+function find_pidx()
+{
+	PORT=$1
+	PPATH=$2
+
+	for ((i = 0; i < 64; i++)); do
+		PEER_DIR="$PPATH/peer$i"
+
+		check_file ${PEER_DIR} || break
+
+		PEER_PORT=$(read_file "${PEER_DIR}/port")
+		if [[ ${PORT} -eq $PEER_PORT ]]; then
+			echo $i
+			return 0
+		fi
+	done
+
+	return 1
+}
+
+function port_test()
+{
+	LOC=$1
+	REM=$2
+
+	echo "Running port tests on: $(basename $LOC) / $(basename $REM)"
+
+	LOCAL_PORT=$(read_file "$LOC/port")
+	REMOTE_PORT=$(read_file "$REM/port")
+
+	LOCAL_PIDX=$(find_pidx ${REMOTE_PORT} "$LOC")
+	REMOTE_PIDX=$(find_pidx ${LOCAL_PORT} "$REM")
+
+	echo "Local port ${LOCAL_PORT} with index ${REMOTE_PIDX} on remote host"
+	echo "Peer port ${REMOTE_PORT} with index ${LOCAL_PIDX} on local host"
+
+	echo "  Passed"
+}
+
+function link_test()
+{
+	LOC=$1
+	REM=$2
+	EXP=0
+
+	echo "Running link tests on: $(subdirname $LOC) / $(subdirname $REM)"
+
+	if ! write_file "N" "$LOC/../link" 2> /dev/null; then
+		echo "  Unsupported"
+		return
+	fi
+
+	write_file "N" "$LOC/link_event"
+
+	if [[ $(read_file "$REM/link") != "N" ]]; then
+		echo "Expected link to be down in $REM/link" >&2
+		exit -1
+	fi
+
+	write_file "Y" "$LOC/../link"
+
+	echo "  Passed"
+}
+
+function doorbell_test()
+{
+	LOC=$1
+	REM=$2
+	EXP=0
+
+	echo "Running db tests on: $(basename $LOC) / $(basename $REM)"
+
+	DB_VALID_MASK=$(read_file "$LOC/db_valid_mask")
+
+	write_file "c $DB_VALID_MASK" "$REM/db"
+
+	for ((i = 0; i < 64; i++)); do
+		DB=$(read_file "$REM/db")
+		if [[ "$DB" -ne "$EXP" ]]; then
+			echo "Doorbell doesn't match expected value $EXP " \
+			     "in $REM/db" >&2
+			exit -1
+		fi
+
+		let "MASK = (1 << $i) & $DB_VALID_MASK" || true
+		let "EXP = $EXP | $MASK" || true
+
+		write_file "s $MASK" "$LOC/peer_db"
+	done
+
+	write_file "c $DB_VALID_MASK" "$REM/db_mask"
+	write_file $DB_VALID_MASK "$REM/db_event"
+	write_file "s $DB_VALID_MASK" "$REM/db_mask"
+
+	write_file "c $DB_VALID_MASK" "$REM/db"
+
+	echo "  Passed"
+}
+
+function get_files_count()
+{
+	NAME=$1
+	LOC=$2
+
+	split_remote $LOC
+
+	if [[ "$REMOTE" == "" ]]; then
+		echo $(ls -1 "$VPATH"/${NAME}* 2>/dev/null | wc -l)
+	else
+		echo $(ssh "$REMOTE" "ls -1 \"$VPATH\"/${NAME}* | \
+		       wc -l" 2> /dev/null)
+	fi
+}
+
+function scratchpad_test()
+{
+	LOC=$1
+	REM=$2
+
+	echo "Running spad tests on: $(subdirname $LOC) / $(subdirname $REM)"
+
+	CNT=$(get_files_count "spad" "$LOC")
+
+	if [[ $CNT -eq 0 ]]; then
+		echo "  Unsupported"
+		return
+	fi
+
+	for ((i = 0; i < $CNT; i++)); do
+		VAL=$RANDOM
+		write_file "$VAL" "$LOC/spad$i"
+		RVAL=$(read_file "$REM/../spad$i")
+
+		if [[ "$VAL" -ne "$RVAL" ]]; then
+			echo "Scratchpad $i value $RVAL doesn't match $VAL" >&2
+			exit -1
+		fi
+	done
+
+	echo "  Passed"
+}
+
+function message_test()
+{
+	LOC=$1
+	REM=$2
+
+	echo "Running msg tests on: $(subdirname $LOC) / $(subdirname $REM)"
+
+	CNT=$(get_files_count "msg" "$LOC")
+
+	if [[ $CNT -eq 0 ]]; then
+		echo "  Unsupported"
+		return
+	fi
+
+	MSG_OUTBITS_MASK=$(read_file "$LOC/../msg_inbits")
+	MSG_INBITS_MASK=$(read_file "$REM/../msg_inbits")
+
+	write_file "c $MSG_OUTBITS_MASK" "$LOC/../msg_sts"
+	write_file "c $MSG_INBITS_MASK" "$REM/../msg_sts"
+
+	for ((i = 0; i < $CNT; i++)); do
+		VAL=$RANDOM
+		write_file "$VAL" "$LOC/msg$i"
+		RVAL=$(read_file "$REM/../msg$i")
+
+		if [[ "$VAL" -ne "${RVAL%%<-*}" ]]; then
+			echo "Message $i value $RVAL doesn't match $VAL" >&2
+			exit -1
+		fi
+	done
+
+	echo "  Passed"
+}
+
+function get_number()
+{
+	KEY=$1
+
+	sed -n "s/^\(${KEY}\)[ \t]*\(0x[0-9a-fA-F]*\)\(\[p\]\)\?$/\2/p"
+}
+
+function mw_alloc()
+{
+	IDX=$1
+	LOC=$2
+	REM=$3
+
+	write_file $MW_SIZE "$LOC/mw_trans$IDX"
+
+	INB_MW=$(read_file "$LOC/mw_trans$IDX")
+	MW_ALIGNED_SIZE=$(echo "$INB_MW" | get_number "Window Size")
+	MW_DMA_ADDR=$(echo "$INB_MW" | get_number "DMA Address")
+
+	write_file "$MW_DMA_ADDR:$(($MW_ALIGNED_SIZE))" "$REM/peer_mw_trans$IDX"
+
+	if [[ $MW_SIZE -ne $MW_ALIGNED_SIZE ]]; then
+		echo "MW $IDX size aligned to $MW_ALIGNED_SIZE"
+	fi
+}
+
+function write_mw()
+{
+	split_remote $2
+
+	if [[ "$REMOTE" != "" ]]; then
+		ssh "$REMOTE" \
+			dd if=/dev/urandom "of=$VPATH" 2> /dev/null || true
+	else
+		dd if=/dev/urandom "of=$VPATH" 2> /dev/null || true
+	fi
+}
+
+function mw_check()
+{
+	IDX=$1
+	LOC=$2
+	REM=$3
+
+	write_mw "$LOC/mw$IDX"
+
+	split_remote "$LOC/mw$IDX"
+	if [[ "$REMOTE" == "" ]]; then
+		A=$VPATH
+	else
+		A=/tmp/ntb_test.$$.A
+		ssh "$REMOTE" cat "$VPATH" > "$A"
+	fi
+
+	split_remote "$REM/peer_mw$IDX"
+	if [[ "$REMOTE" == "" ]]; then
+		B=$VPATH
+	else
+		B=/tmp/ntb_test.$$.B
+		ssh "$REMOTE" cat "$VPATH" > "$B"
+	fi
+
+	cmp -n $MW_ALIGNED_SIZE "$A" "$B"
+	if [[ $? != 0 ]]; then
+		echo "Memory window $MW did not match!" >&2
+	fi
+
+	if [[ "$A" == "/tmp/*" ]]; then
+		rm "$A"
+	fi
+
+	if [[ "$B" == "/tmp/*" ]]; then
+		rm "$B"
+	fi
+}
+
+function mw_free()
+{
+	IDX=$1
+	LOC=$2
+	REM=$3
+
+	write_file "$MW_DMA_ADDR:0" "$REM/peer_mw_trans$IDX"
+
+	write_file 0 "$LOC/mw_trans$IDX"
+}
+
+function mw_test()
+{
+	LOC=$1
+	REM=$2
+
+	CNT=$(get_files_count "mw_trans" "$LOC")
+
+	for ((i = 0; i < $CNT; i++)); do
+		echo "Running mw$i tests on: $(subdirname $LOC) / " \
+		     "$(subdirname $REM)"
+
+		mw_alloc $i $LOC $REM
+
+		mw_check $i $LOC $REM
+
+		mw_free $i $LOC  $REM
+
+		echo "  Passed"
+	done
+
+}
+
+function pingpong_test()
+{
+	LOC=$1
+	REM=$2
+
+	echo "Running ping pong tests on: $(basename $LOC) / $(basename $REM)"
+
+	LOC_START=$(read_file "$LOC/count")
+	REM_START=$(read_file "$REM/count")
+
+	sleep 7
+
+	LOC_END=$(read_file "$LOC/count")
+	REM_END=$(read_file "$REM/count")
+
+	if [[ $LOC_START == $LOC_END ]] || [[ $REM_START == $REM_END ]]; then
+		echo "Ping pong counter not incrementing!" >&2
+		exit 1
+	fi
+
+	echo "  Passed"
+}
+
+function msi_test()
+{
+	LOC=$1
+	REM=$2
+
+	write_file 1 $LOC/ready
+
+	echo "Running MSI interrupt tests on: $(subdirname $LOC) / $(subdirname $REM)"
+
+	CNT=$(read_file "$LOC/count")
+	for ((i = 0; i < $CNT; i++)); do
+		START=$(read_file $REM/../irq${i}_occurrences)
+		write_file $i $LOC/trigger
+		END=$(read_file $REM/../irq${i}_occurrences)
+
+		if [[ $(($END - $START)) != 1 ]]; then
+			echo "MSI did not trigger the interrupt on the remote side!" >&2
+			exit 1
+		fi
+	done
+
+	echo "  Passed"
+}
+
+function perf_test()
+{
+	USE_DMA=$1
+
+	if [[ $USE_DMA == "1" ]]; then
+		WITH="with"
+	else
+		WITH="without"
+	fi
+
+	_modprobe ntb_perf total_order=$PERF_RUN_ORDER \
+		max_mw_size=$MAX_MW_SIZE use_dma=$USE_DMA
+
+	echo "Running local perf test $WITH DMA"
+	write_file "$LOCAL_PIDX" "$LOCAL_PERF/run"
+	echo -n "  "
+	read_file "$LOCAL_PERF/run"
+	echo "  Passed"
+
+	echo "Running remote perf test $WITH DMA"
+	write_file "$REMOTE_PIDX" "$REMOTE_PERF/run"
+	echo -n "  "
+	read_file "$REMOTE_PERF/run"
+	echo "  Passed"
+
+	_modprobe -r ntb_perf
+}
+
+function ntb_tool_tests()
+{
+	LOCAL_TOOL="$DEBUGFS/ntb_tool/$LOCAL_DEV"
+	REMOTE_TOOL="$REMOTE_HOST:$DEBUGFS/ntb_tool/$REMOTE_DEV"
+
+	echo "Starting ntb_tool tests..."
+
+	_modprobe ntb_tool
+
+	port_test "$LOCAL_TOOL" "$REMOTE_TOOL"
+
+	LOCAL_PEER_TOOL="$LOCAL_TOOL/peer$LOCAL_PIDX"
+	REMOTE_PEER_TOOL="$REMOTE_TOOL/peer$REMOTE_PIDX"
+
+	link_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
+	link_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
+
+	#Ensure the link is up on both sides before continuing
+	write_file "Y" "$LOCAL_PEER_TOOL/link_event"
+	write_file "Y" "$REMOTE_PEER_TOOL/link_event"
+
+	doorbell_test "$LOCAL_TOOL" "$REMOTE_TOOL"
+	doorbell_test "$REMOTE_TOOL" "$LOCAL_TOOL"
+
+	scratchpad_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
+	scratchpad_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
+
+	message_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
+	message_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
+
+	mw_test "$LOCAL_PEER_TOOL" "$REMOTE_PEER_TOOL"
+	mw_test "$REMOTE_PEER_TOOL" "$LOCAL_PEER_TOOL"
+
+	_modprobe -r ntb_tool
+}
+
+function ntb_pingpong_tests()
+{
+	LOCAL_PP="$DEBUGFS/ntb_pingpong/$LOCAL_DEV"
+	REMOTE_PP="$REMOTE_HOST:$DEBUGFS/ntb_pingpong/$REMOTE_DEV"
+
+	echo "Starting ntb_pingpong tests..."
+
+	_modprobe ntb_pingpong
+
+	pingpong_test $LOCAL_PP $REMOTE_PP
+
+	_modprobe -r ntb_pingpong
+}
+
+function ntb_msi_tests()
+{
+	LOCAL_MSI="$DEBUGFS/ntb_msi_test/$LOCAL_DEV"
+	REMOTE_MSI="$REMOTE_HOST:$DEBUGFS/ntb_msi_test/$REMOTE_DEV"
+
+	echo "Starting ntb_msi_test tests..."
+
+	if ! _modprobe ntb_msi_test 2> /dev/null; then
+		echo "  Not doing MSI tests seeing the module is not available."
+		return
+	fi
+
+	port_test $LOCAL_MSI $REMOTE_MSI
+
+	LOCAL_PEER="$LOCAL_MSI/peer$LOCAL_PIDX"
+	REMOTE_PEER="$REMOTE_MSI/peer$REMOTE_PIDX"
+
+	msi_test $LOCAL_PEER $REMOTE_PEER
+	msi_test $REMOTE_PEER $LOCAL_PEER
+
+	_modprobe -r ntb_msi_test
+}
+
+function ntb_perf_tests()
+{
+	LOCAL_PERF="$DEBUGFS/ntb_perf/$LOCAL_DEV"
+	REMOTE_PERF="$REMOTE_HOST:$DEBUGFS/ntb_perf/$REMOTE_DEV"
+
+	echo "Starting ntb_perf tests..."
+
+	perf_test 0
+
+	if [[ $RUN_DMA_TESTS ]]; then
+		perf_test 1
+	fi
+}
+
+function cleanup()
+{
+	set +e
+	_modprobe -r ntb_tool 2> /dev/null
+	_modprobe -r ntb_perf 2> /dev/null
+	_modprobe -r ntb_pingpong 2> /dev/null
+	_modprobe -r ntb_transport 2> /dev/null
+	_modprobe -r ntb_msi_test 2> /dev/null
+	set -e
+}
+
+cleanup
+
+if ! [[ $$DONT_CLEANUP ]]; then
+	trap cleanup EXIT
+fi
+
+if [ "$(id -u)" != "0" ]; then
+	echo "This script must be run as root" 1>&2
+	exit 1
+fi
+
+if [[ "$LIST_DEVS" == TRUE ]]; then
+	echo "Local Devices:"
+	ls -1 /sys/bus/ntb/devices
+	echo
+
+	if [[ "$REMOTE_HOST" != "" ]]; then
+		echo "Remote Devices:"
+		ssh $REMOTE_HOST ls -1 /sys/bus/ntb/devices
+	fi
+
+	exit 0
+fi
+
+if [[ "$LOCAL_DEV" == $"" ]] || [[ "$REMOTE_DEV" == $"" ]]; then
+	show_help
+	exit 1
+fi
+
+ntb_tool_tests
+echo
+ntb_pingpong_tests
+echo
+ntb_msi_tests
+echo
+ntb_perf_tests
+echo
diff --git a/tools/testing/selftests/openat2/.gitignore b/tools/testing/selftests/openat2/.gitignore
new file mode 100644
index 000000000000..82a4846cbc4b
--- /dev/null
+++ b/tools/testing/selftests/openat2/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/*_test
diff --git a/tools/testing/selftests/openat2/Makefile b/tools/testing/selftests/openat2/Makefile
new file mode 100644
index 000000000000..185dc76ebb5f
--- /dev/null
+++ b/tools/testing/selftests/openat2/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g -fsanitize=address -fsanitize=undefined
+TEST_GEN_PROGS := openat2_test resolve_test rename_attack_test
+
+# gcc requires -static-libasan in order to ensure that Address Sanitizer's
+# library is the first one loaded. However, clang already statically links the
+# Address Sanitizer if -fsanitize is specified. Therefore, simply omit
+# -static-libasan for clang builds.
+ifeq ($(LLVM),)
+    CFLAGS += -static-libasan
+endif
+
+LOCAL_HDRS += helpers.h
+
+include ../lib.mk
+
+$(TEST_GEN_PROGS): helpers.c
diff --git a/tools/testing/selftests/openat2/helpers.c b/tools/testing/selftests/openat2/helpers.c
new file mode 100644
index 000000000000..5074681ffdc9
--- /dev/null
+++ b/tools/testing/selftests/openat2/helpers.c
@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2018-2019 SUSE LLC.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <string.h>
+#include <syscall.h>
+#include <limits.h>
+
+#include "helpers.h"
+
+bool needs_openat2(const struct open_how *how)
+{
+	return how->resolve != 0;
+}
+
+int raw_openat2(int dfd, const char *path, void *how, size_t size)
+{
+	int ret = syscall(__NR_openat2, dfd, path, how, size);
+	return ret >= 0 ? ret : -errno;
+}
+
+int sys_openat2(int dfd, const char *path, struct open_how *how)
+{
+	return raw_openat2(dfd, path, how, sizeof(*how));
+}
+
+int sys_openat(int dfd, const char *path, struct open_how *how)
+{
+	int ret = openat(dfd, path, how->flags, how->mode);
+	return ret >= 0 ? ret : -errno;
+}
+
+int sys_renameat2(int olddirfd, const char *oldpath,
+		  int newdirfd, const char *newpath, unsigned int flags)
+{
+	int ret = syscall(__NR_renameat2, olddirfd, oldpath,
+					  newdirfd, newpath, flags);
+	return ret >= 0 ? ret : -errno;
+}
+
+int touchat(int dfd, const char *path)
+{
+	int fd = openat(dfd, path, O_CREAT, 0700);
+	if (fd >= 0)
+		close(fd);
+	return fd;
+}
+
+char *fdreadlink(int fd)
+{
+	char *target, *tmp;
+
+	E_asprintf(&tmp, "/proc/self/fd/%d", fd);
+
+	target = malloc(PATH_MAX);
+	if (!target)
+		ksft_exit_fail_msg("fdreadlink: malloc failed\n");
+	memset(target, 0, PATH_MAX);
+
+	E_readlink(tmp, target, PATH_MAX);
+	free(tmp);
+	return target;
+}
+
+bool fdequal(int fd, int dfd, const char *path)
+{
+	char *fdpath, *dfdpath, *other;
+	bool cmp;
+
+	fdpath = fdreadlink(fd);
+	dfdpath = fdreadlink(dfd);
+
+	if (!path)
+		E_asprintf(&other, "%s", dfdpath);
+	else if (*path == '/')
+		E_asprintf(&other, "%s", path);
+	else
+		E_asprintf(&other, "%s/%s", dfdpath, path);
+
+	cmp = !strcmp(fdpath, other);
+
+	free(fdpath);
+	free(dfdpath);
+	free(other);
+	return cmp;
+}
+
+bool openat2_supported = false;
+
+void __attribute__((constructor)) init(void)
+{
+	struct open_how how = {};
+	int fd;
+
+	BUILD_BUG_ON(sizeof(struct open_how) != OPEN_HOW_SIZE_VER0);
+
+	/* Check openat2(2) support. */
+	fd = sys_openat2(AT_FDCWD, ".", &how);
+	openat2_supported = (fd >= 0);
+
+	if (fd >= 0)
+		close(fd);
+}
diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h
new file mode 100644
index 000000000000..510e60602511
--- /dev/null
+++ b/tools/testing/selftests/openat2/helpers.h
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2018-2019 SUSE LLC.
+ */
+
+#ifndef __RESOLVEAT_H__
+#define __RESOLVEAT_H__
+
+#define _GNU_SOURCE
+#include <stdint.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <linux/types.h>
+#include "kselftest.h"
+
+#define ARRAY_LEN(X) (sizeof (X) / sizeof (*(X)))
+#define BUILD_BUG_ON(e) ((void)(sizeof(struct { int:(-!!(e)); })))
+
+#ifndef SYS_openat2
+#ifndef __NR_openat2
+#define __NR_openat2 437
+#endif /* __NR_openat2 */
+#define SYS_openat2 __NR_openat2
+#endif /* SYS_openat2 */
+
+/*
+ * Arguments for how openat2(2) should open the target path. If @resolve is
+ * zero, then openat2(2) operates very similarly to openat(2).
+ *
+ * However, unlike openat(2), unknown bits in @flags result in -EINVAL rather
+ * than being silently ignored. @mode must be zero unless one of {O_CREAT,
+ * O_TMPFILE} are set.
+ *
+ * @flags: O_* flags.
+ * @mode: O_CREAT/O_TMPFILE file mode.
+ * @resolve: RESOLVE_* flags.
+ */
+struct open_how {
+	__u64 flags;
+	__u64 mode;
+	__u64 resolve;
+};
+
+#define OPEN_HOW_SIZE_VER0	24 /* sizeof first published struct */
+#define OPEN_HOW_SIZE_LATEST	OPEN_HOW_SIZE_VER0
+
+bool needs_openat2(const struct open_how *how);
+
+#ifndef RESOLVE_IN_ROOT
+/* how->resolve flags for openat2(2). */
+#define RESOLVE_NO_XDEV		0x01 /* Block mount-point crossings
+					(includes bind-mounts). */
+#define RESOLVE_NO_MAGICLINKS	0x02 /* Block traversal through procfs-style
+					"magic-links". */
+#define RESOLVE_NO_SYMLINKS	0x04 /* Block traversal through all symlinks
+					(implies OEXT_NO_MAGICLINKS) */
+#define RESOLVE_BENEATH		0x08 /* Block "lexical" trickery like
+					"..", symlinks, and absolute
+					paths which escape the dirfd. */
+#define RESOLVE_IN_ROOT		0x10 /* Make all jumps to "/" and ".."
+					be scoped inside the dirfd
+					(similar to chroot(2)). */
+#endif /* RESOLVE_IN_ROOT */
+
+#define E_func(func, ...)						      \
+	do {								      \
+		errno = 0;						      \
+		if (func(__VA_ARGS__) < 0)				      \
+			ksft_exit_fail_msg("%s:%d %s failed - errno:%d\n",    \
+					   __FILE__, __LINE__, #func, errno); \
+	} while (0)
+
+#define E_asprintf(...)		E_func(asprintf,	__VA_ARGS__)
+#define E_chmod(...)		E_func(chmod,		__VA_ARGS__)
+#define E_dup2(...)		E_func(dup2,		__VA_ARGS__)
+#define E_fchdir(...)		E_func(fchdir,		__VA_ARGS__)
+#define E_fstatat(...)		E_func(fstatat,		__VA_ARGS__)
+#define E_kill(...)		E_func(kill,		__VA_ARGS__)
+#define E_mkdirat(...)		E_func(mkdirat,		__VA_ARGS__)
+#define E_mount(...)		E_func(mount,		__VA_ARGS__)
+#define E_prctl(...)		E_func(prctl,		__VA_ARGS__)
+#define E_readlink(...)		E_func(readlink,	__VA_ARGS__)
+#define E_setresuid(...)	E_func(setresuid,	__VA_ARGS__)
+#define E_symlinkat(...)	E_func(symlinkat,	__VA_ARGS__)
+#define E_touchat(...)		E_func(touchat,		__VA_ARGS__)
+#define E_unshare(...)		E_func(unshare,		__VA_ARGS__)
+
+#define E_assert(expr, msg, ...)					\
+	do {								\
+		if (!(expr))						\
+			ksft_exit_fail_msg("ASSERT(%s:%d) failed (%s): " msg "\n", \
+					   __FILE__, __LINE__, #expr, ##__VA_ARGS__); \
+	} while (0)
+
+int raw_openat2(int dfd, const char *path, void *how, size_t size);
+int sys_openat2(int dfd, const char *path, struct open_how *how);
+int sys_openat(int dfd, const char *path, struct open_how *how);
+int sys_renameat2(int olddirfd, const char *oldpath,
+		  int newdirfd, const char *newpath, unsigned int flags);
+
+int touchat(int dfd, const char *path);
+char *fdreadlink(int fd);
+bool fdequal(int fd, int dfd, const char *path);
+
+extern bool openat2_supported;
+
+#endif /* __RESOLVEAT_H__ */
diff --git a/tools/testing/selftests/openat2/openat2_test.c b/tools/testing/selftests/openat2/openat2_test.c
new file mode 100644
index 000000000000..0e161ef9e9e4
--- /dev/null
+++ b/tools/testing/selftests/openat2/openat2_test.c
@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2018-2019 SUSE LLC.
+ */
+
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__ // Use ll64
+#include <fcntl.h>
+#include <sched.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "kselftest.h"
+#include "helpers.h"
+
+/*
+ * O_LARGEFILE is set to 0 by glibc.
+ * XXX: This is wrong on {mips, parisc, powerpc, sparc}.
+ */
+#undef	O_LARGEFILE
+#ifdef __aarch64__
+#define	O_LARGEFILE 0x20000
+#else
+#define	O_LARGEFILE 0x8000
+#endif
+
+struct open_how_ext {
+	struct open_how inner;
+	uint32_t extra1;
+	char pad1[128];
+	uint32_t extra2;
+	char pad2[128];
+	uint32_t extra3;
+};
+
+struct struct_test {
+	const char *name;
+	struct open_how_ext arg;
+	size_t size;
+	int err;
+};
+
+#define NUM_OPENAT2_STRUCT_TESTS 7
+#define NUM_OPENAT2_STRUCT_VARIATIONS 13
+
+void test_openat2_struct(void)
+{
+	int misalignments[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 17, 87 };
+
+	struct struct_test tests[] = {
+		/* Normal struct. */
+		{ .name = "normal struct",
+		  .arg.inner.flags = O_RDONLY,
+		  .size = sizeof(struct open_how) },
+		/* Bigger struct, with zeroed out end. */
+		{ .name = "bigger struct (zeroed out)",
+		  .arg.inner.flags = O_RDONLY,
+		  .size = sizeof(struct open_how_ext) },
+
+		/* TODO: Once expanded, check zero-padding. */
+
+		/* Smaller than version-0 struct. */
+		{ .name = "zero-sized 'struct'",
+		  .arg.inner.flags = O_RDONLY, .size = 0, .err = -EINVAL },
+		{ .name = "smaller-than-v0 struct",
+		  .arg.inner.flags = O_RDONLY,
+		  .size = OPEN_HOW_SIZE_VER0 - 1, .err = -EINVAL },
+
+		/* Bigger struct, with non-zero trailing bytes. */
+		{ .name = "bigger struct (non-zero data in first 'future field')",
+		  .arg.inner.flags = O_RDONLY, .arg.extra1 = 0xdeadbeef,
+		  .size = sizeof(struct open_how_ext), .err = -E2BIG },
+		{ .name = "bigger struct (non-zero data in middle of 'future fields')",
+		  .arg.inner.flags = O_RDONLY, .arg.extra2 = 0xfeedcafe,
+		  .size = sizeof(struct open_how_ext), .err = -E2BIG },
+		{ .name = "bigger struct (non-zero data at end of 'future fields')",
+		  .arg.inner.flags = O_RDONLY, .arg.extra3 = 0xabad1dea,
+		  .size = sizeof(struct open_how_ext), .err = -E2BIG },
+	};
+
+	BUILD_BUG_ON(ARRAY_LEN(misalignments) != NUM_OPENAT2_STRUCT_VARIATIONS);
+	BUILD_BUG_ON(ARRAY_LEN(tests) != NUM_OPENAT2_STRUCT_TESTS);
+
+	for (int i = 0; i < ARRAY_LEN(tests); i++) {
+		struct struct_test *test = &tests[i];
+		struct open_how_ext how_ext = test->arg;
+
+		for (int j = 0; j < ARRAY_LEN(misalignments); j++) {
+			int fd, misalign = misalignments[j];
+			char *fdpath = NULL;
+			bool failed;
+			void (*resultfn)(const char *msg, ...) = ksft_test_result_pass;
+
+			void *copy = NULL, *how_copy = &how_ext;
+
+			if (!openat2_supported) {
+				ksft_print_msg("openat2(2) unsupported\n");
+				resultfn = ksft_test_result_skip;
+				goto skip;
+			}
+
+			if (misalign) {
+				/*
+				 * Explicitly misalign the structure copying it with the given
+				 * (mis)alignment offset. The other data is set to be non-zero to
+				 * make sure that non-zero bytes outside the struct aren't checked
+				 *
+				 * This is effectively to check that is_zeroed_user() works.
+				 */
+				copy = malloc(misalign + sizeof(how_ext));
+				how_copy = copy + misalign;
+				memset(copy, 0xff, misalign);
+				memcpy(how_copy, &how_ext, sizeof(how_ext));
+			}
+
+			fd = raw_openat2(AT_FDCWD, ".", how_copy, test->size);
+			if (test->err >= 0)
+				failed = (fd < 0);
+			else
+				failed = (fd != test->err);
+			if (fd >= 0) {
+				fdpath = fdreadlink(fd);
+				close(fd);
+			}
+
+			if (failed) {
+				resultfn = ksft_test_result_fail;
+
+				ksft_print_msg("openat2 unexpectedly returned ");
+				if (fdpath)
+					ksft_print_msg("%d['%s']\n", fd, fdpath);
+				else
+					ksft_print_msg("%d (%s)\n", fd, strerror(-fd));
+			}
+
+skip:
+			if (test->err >= 0)
+				resultfn("openat2 with %s argument [misalign=%d] succeeds\n",
+					 test->name, misalign);
+			else
+				resultfn("openat2 with %s argument [misalign=%d] fails with %d (%s)\n",
+					 test->name, misalign, test->err,
+					 strerror(-test->err));
+
+			free(copy);
+			free(fdpath);
+			fflush(stdout);
+		}
+	}
+}
+
+struct flag_test {
+	const char *name;
+	struct open_how how;
+	int err;
+};
+
+#define NUM_OPENAT2_FLAG_TESTS 25
+
+void test_openat2_flags(void)
+{
+	struct flag_test tests[] = {
+		/* O_TMPFILE is incompatible with O_PATH and O_CREAT. */
+		{ .name = "incompatible flags (O_TMPFILE | O_PATH)",
+		  .how.flags = O_TMPFILE | O_PATH | O_RDWR, .err = -EINVAL },
+		{ .name = "incompatible flags (O_TMPFILE | O_CREAT)",
+		  .how.flags = O_TMPFILE | O_CREAT | O_RDWR, .err = -EINVAL },
+
+		/* O_PATH only permits certain other flags to be set ... */
+		{ .name = "compatible flags (O_PATH | O_CLOEXEC)",
+		  .how.flags = O_PATH | O_CLOEXEC },
+		{ .name = "compatible flags (O_PATH | O_DIRECTORY)",
+		  .how.flags = O_PATH | O_DIRECTORY },
+		{ .name = "compatible flags (O_PATH | O_NOFOLLOW)",
+		  .how.flags = O_PATH | O_NOFOLLOW },
+		/* ... and others are absolutely not permitted. */
+		{ .name = "incompatible flags (O_PATH | O_RDWR)",
+		  .how.flags = O_PATH | O_RDWR, .err = -EINVAL },
+		{ .name = "incompatible flags (O_PATH | O_CREAT)",
+		  .how.flags = O_PATH | O_CREAT, .err = -EINVAL },
+		{ .name = "incompatible flags (O_PATH | O_EXCL)",
+		  .how.flags = O_PATH | O_EXCL, .err = -EINVAL },
+		{ .name = "incompatible flags (O_PATH | O_NOCTTY)",
+		  .how.flags = O_PATH | O_NOCTTY, .err = -EINVAL },
+		{ .name = "incompatible flags (O_PATH | O_DIRECT)",
+		  .how.flags = O_PATH | O_DIRECT, .err = -EINVAL },
+		{ .name = "incompatible flags (O_PATH | O_LARGEFILE)",
+		  .how.flags = O_PATH | O_LARGEFILE, .err = -EINVAL },
+
+		/* ->mode must only be set with O_{CREAT,TMPFILE}. */
+		{ .name = "non-zero how.mode and O_RDONLY",
+		  .how.flags = O_RDONLY, .how.mode = 0600, .err = -EINVAL },
+		{ .name = "non-zero how.mode and O_PATH",
+		  .how.flags = O_PATH,   .how.mode = 0600, .err = -EINVAL },
+		{ .name = "valid how.mode and O_CREAT",
+		  .how.flags = O_CREAT,  .how.mode = 0600 },
+		{ .name = "valid how.mode and O_TMPFILE",
+		  .how.flags = O_TMPFILE | O_RDWR, .how.mode = 0600 },
+		/* ->mode must only contain 0777 bits. */
+		{ .name = "invalid how.mode and O_CREAT",
+		  .how.flags = O_CREAT,
+		  .how.mode = 0xFFFF, .err = -EINVAL },
+		{ .name = "invalid (very large) how.mode and O_CREAT",
+		  .how.flags = O_CREAT,
+		  .how.mode = 0xC000000000000000ULL, .err = -EINVAL },
+		{ .name = "invalid how.mode and O_TMPFILE",
+		  .how.flags = O_TMPFILE | O_RDWR,
+		  .how.mode = 0x1337, .err = -EINVAL },
+		{ .name = "invalid (very large) how.mode and O_TMPFILE",
+		  .how.flags = O_TMPFILE | O_RDWR,
+		  .how.mode = 0x0000A00000000000ULL, .err = -EINVAL },
+
+		/* ->resolve flags must not conflict. */
+		{ .name = "incompatible resolve flags (BENEATH | IN_ROOT)",
+		  .how.flags = O_RDONLY,
+		  .how.resolve = RESOLVE_BENEATH | RESOLVE_IN_ROOT,
+		  .err = -EINVAL },
+
+		/* ->resolve must only contain RESOLVE_* flags. */
+		{ .name = "invalid how.resolve and O_RDONLY",
+		  .how.flags = O_RDONLY,
+		  .how.resolve = 0x1337, .err = -EINVAL },
+		{ .name = "invalid how.resolve and O_CREAT",
+		  .how.flags = O_CREAT,
+		  .how.resolve = 0x1337, .err = -EINVAL },
+		{ .name = "invalid how.resolve and O_TMPFILE",
+		  .how.flags = O_TMPFILE | O_RDWR,
+		  .how.resolve = 0x1337, .err = -EINVAL },
+		{ .name = "invalid how.resolve and O_PATH",
+		  .how.flags = O_PATH,
+		  .how.resolve = 0x1337, .err = -EINVAL },
+
+		/* currently unknown upper 32 bit rejected. */
+		{ .name = "currently unknown bit (1 << 63)",
+		  .how.flags = O_RDONLY | (1ULL << 63),
+		  .how.resolve = 0, .err = -EINVAL },
+	};
+
+	BUILD_BUG_ON(ARRAY_LEN(tests) != NUM_OPENAT2_FLAG_TESTS);
+
+	for (int i = 0; i < ARRAY_LEN(tests); i++) {
+		int fd, fdflags = -1;
+		char *path, *fdpath = NULL;
+		bool failed = false;
+		struct flag_test *test = &tests[i];
+		void (*resultfn)(const char *msg, ...) = ksft_test_result_pass;
+
+		if (!openat2_supported) {
+			ksft_print_msg("openat2(2) unsupported\n");
+			resultfn = ksft_test_result_skip;
+			goto skip;
+		}
+
+		path = (test->how.flags & O_CREAT) ? "/tmp/ksft.openat2_tmpfile" : ".";
+		unlink(path);
+
+		fd = sys_openat2(AT_FDCWD, path, &test->how);
+		if (fd < 0 && fd == -EOPNOTSUPP) {
+			/*
+			 * Skip the testcase if it failed because not supported
+			 * by FS. (e.g. a valid O_TMPFILE combination on NFS)
+			 */
+			ksft_test_result_skip("openat2 with %s fails with %d (%s)\n",
+					      test->name, fd, strerror(-fd));
+			goto next;
+		}
+
+		if (test->err >= 0)
+			failed = (fd < 0);
+		else
+			failed = (fd != test->err);
+		if (fd >= 0) {
+			int otherflags;
+
+			fdpath = fdreadlink(fd);
+			fdflags = fcntl(fd, F_GETFL);
+			otherflags = fcntl(fd, F_GETFD);
+			close(fd);
+
+			E_assert(fdflags >= 0, "fcntl F_GETFL of new fd");
+			E_assert(otherflags >= 0, "fcntl F_GETFD of new fd");
+
+			/* O_CLOEXEC isn't shown in F_GETFL. */
+			if (otherflags & FD_CLOEXEC)
+				fdflags |= O_CLOEXEC;
+			/* O_CREAT is hidden from F_GETFL. */
+			if (test->how.flags & O_CREAT)
+				fdflags |= O_CREAT;
+			if (!(test->how.flags & O_LARGEFILE))
+				fdflags &= ~O_LARGEFILE;
+			failed |= (fdflags != test->how.flags);
+		}
+
+		if (failed) {
+			resultfn = ksft_test_result_fail;
+
+			ksft_print_msg("openat2 unexpectedly returned ");
+			if (fdpath)
+				ksft_print_msg("%d['%s'] with %X (!= %llX)\n",
+					       fd, fdpath, fdflags,
+					       test->how.flags);
+			else
+				ksft_print_msg("%d (%s)\n", fd, strerror(-fd));
+		}
+
+skip:
+		if (test->err >= 0)
+			resultfn("openat2 with %s succeeds\n", test->name);
+		else
+			resultfn("openat2 with %s fails with %d (%s)\n",
+				 test->name, test->err, strerror(-test->err));
+next:
+		free(fdpath);
+		fflush(stdout);
+	}
+}
+
+#define NUM_TESTS (NUM_OPENAT2_STRUCT_VARIATIONS * NUM_OPENAT2_STRUCT_TESTS + \
+		   NUM_OPENAT2_FLAG_TESTS)
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(NUM_TESTS);
+
+	test_openat2_struct();
+	test_openat2_flags();
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/openat2/rename_attack_test.c b/tools/testing/selftests/openat2/rename_attack_test.c
new file mode 100644
index 000000000000..aa5699e45729
--- /dev/null
+++ b/tools/testing/selftests/openat2/rename_attack_test.c
@@ -0,0 +1,160 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2018-2019 SUSE LLC.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <syscall.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+#include "helpers.h"
+
+/* Construct a test directory with the following structure:
+ *
+ * root/
+ * |-- a/
+ * |   `-- c/
+ * `-- b/
+ */
+int setup_testdir(void)
+{
+	int dfd;
+	char dirname[] = "/tmp/ksft-openat2-rename-attack.XXXXXX";
+
+	/* Make the top-level directory. */
+	if (!mkdtemp(dirname))
+		ksft_exit_fail_msg("setup_testdir: failed to create tmpdir\n");
+	dfd = open(dirname, O_PATH | O_DIRECTORY);
+	if (dfd < 0)
+		ksft_exit_fail_msg("setup_testdir: failed to open tmpdir\n");
+
+	E_mkdirat(dfd, "a", 0755);
+	E_mkdirat(dfd, "b", 0755);
+	E_mkdirat(dfd, "a/c", 0755);
+
+	return dfd;
+}
+
+/* Swap @dirfd/@a and @dirfd/@b constantly. Parent must kill this process. */
+pid_t spawn_attack(int dirfd, char *a, char *b)
+{
+	pid_t child = fork();
+	if (child != 0)
+		return child;
+
+	/* If the parent (the test process) dies, kill ourselves too. */
+	E_prctl(PR_SET_PDEATHSIG, SIGKILL);
+
+	/* Swap @a and @b. */
+	for (;;)
+		renameat2(dirfd, a, dirfd, b, RENAME_EXCHANGE);
+	exit(1);
+}
+
+#define NUM_RENAME_TESTS 2
+#define ROUNDS 400000
+
+const char *flagname(int resolve)
+{
+	switch (resolve) {
+	case RESOLVE_IN_ROOT:
+		return "RESOLVE_IN_ROOT";
+	case RESOLVE_BENEATH:
+		return "RESOLVE_BENEATH";
+	}
+	return "(unknown)";
+}
+
+void test_rename_attack(int resolve)
+{
+	int dfd, afd;
+	pid_t child;
+	void (*resultfn)(const char *msg, ...) = ksft_test_result_pass;
+	int escapes = 0, other_errs = 0, exdevs = 0, eagains = 0, successes = 0;
+
+	struct open_how how = {
+		.flags = O_PATH,
+		.resolve = resolve,
+	};
+
+	if (!openat2_supported) {
+		how.resolve = 0;
+		ksft_print_msg("openat2(2) unsupported -- using openat(2) instead\n");
+	}
+
+	dfd = setup_testdir();
+	afd = openat(dfd, "a", O_PATH);
+	if (afd < 0)
+		ksft_exit_fail_msg("test_rename_attack: failed to open 'a'\n");
+
+	child = spawn_attack(dfd, "a/c", "b");
+
+	for (int i = 0; i < ROUNDS; i++) {
+		int fd;
+		char *victim_path = "c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../../c/../..";
+
+		if (openat2_supported)
+			fd = sys_openat2(afd, victim_path, &how);
+		else
+			fd = sys_openat(afd, victim_path, &how);
+
+		if (fd < 0) {
+			if (fd == -EAGAIN)
+				eagains++;
+			else if (fd == -EXDEV)
+				exdevs++;
+			else if (fd == -ENOENT)
+				escapes++; /* escaped outside and got ENOENT... */
+			else
+				other_errs++; /* unexpected error */
+		} else {
+			if (fdequal(fd, afd, NULL))
+				successes++;
+			else
+				escapes++; /* we got an unexpected fd */
+		}
+		close(fd);
+	}
+
+	if (escapes > 0)
+		resultfn = ksft_test_result_fail;
+	ksft_print_msg("non-escapes: EAGAIN=%d EXDEV=%d E<other>=%d success=%d\n",
+		       eagains, exdevs, other_errs, successes);
+	resultfn("rename attack with %s (%d runs, got %d escapes)\n",
+		 flagname(resolve), ROUNDS, escapes);
+
+	/* Should be killed anyway, but might as well make sure. */
+	E_kill(child, SIGKILL);
+}
+
+#define NUM_TESTS NUM_RENAME_TESTS
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(NUM_TESTS);
+
+	test_rename_attack(RESOLVE_BENEATH);
+	test_rename_attack(RESOLVE_IN_ROOT);
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/openat2/resolve_test.c b/tools/testing/selftests/openat2/resolve_test.c
new file mode 100644
index 000000000000..a76ef15ceb90
--- /dev/null
+++ b/tools/testing/selftests/openat2/resolve_test.c
@@ -0,0 +1,523 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2018-2019 SUSE LLC.
+ */
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <sched.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+
+#include "kselftest.h"
+#include "helpers.h"
+
+/*
+ * Construct a test directory with the following structure:
+ *
+ * root/
+ * |-- procexe -> /proc/self/exe
+ * |-- procroot -> /proc/self/root
+ * |-- root/
+ * |-- mnt/ [mountpoint]
+ * |   |-- self -> ../mnt/
+ * |   `-- absself -> /mnt/
+ * |-- etc/
+ * |   `-- passwd
+ * |-- creatlink -> /newfile3
+ * |-- reletc -> etc/
+ * |-- relsym -> etc/passwd
+ * |-- absetc -> /etc/
+ * |-- abssym -> /etc/passwd
+ * |-- abscheeky -> /cheeky
+ * `-- cheeky/
+ *     |-- absself -> /
+ *     |-- self -> ../../root/
+ *     |-- garbageself -> /../../root/
+ *     |-- passwd -> ../cheeky/../cheeky/../etc/../etc/passwd
+ *     |-- abspasswd -> /../cheeky/../cheeky/../etc/../etc/passwd
+ *     |-- dotdotlink -> ../../../../../../../../../../../../../../etc/passwd
+ *     `-- garbagelink -> /../../../../../../../../../../../../../../etc/passwd
+ */
+int setup_testdir(void)
+{
+	int dfd, tmpfd;
+	char dirname[] = "/tmp/ksft-openat2-testdir.XXXXXX";
+
+	/* Unshare and make /tmp a new directory. */
+	E_unshare(CLONE_NEWNS);
+	E_mount("", "/tmp", "", MS_PRIVATE, "");
+
+	/* Make the top-level directory. */
+	if (!mkdtemp(dirname))
+		ksft_exit_fail_msg("setup_testdir: failed to create tmpdir\n");
+	dfd = open(dirname, O_PATH | O_DIRECTORY);
+	if (dfd < 0)
+		ksft_exit_fail_msg("setup_testdir: failed to open tmpdir\n");
+
+	/* A sub-directory which is actually used for tests. */
+	E_mkdirat(dfd, "root", 0755);
+	tmpfd = openat(dfd, "root", O_PATH | O_DIRECTORY);
+	if (tmpfd < 0)
+		ksft_exit_fail_msg("setup_testdir: failed to open tmpdir\n");
+	close(dfd);
+	dfd = tmpfd;
+
+	E_symlinkat("/proc/self/exe", dfd, "procexe");
+	E_symlinkat("/proc/self/root", dfd, "procroot");
+	E_mkdirat(dfd, "root", 0755);
+
+	/* There is no mountat(2), so use chdir. */
+	E_mkdirat(dfd, "mnt", 0755);
+	E_fchdir(dfd);
+	E_mount("tmpfs", "./mnt", "tmpfs", MS_NOSUID | MS_NODEV, "");
+	E_symlinkat("../mnt/", dfd, "mnt/self");
+	E_symlinkat("/mnt/", dfd, "mnt/absself");
+
+	E_mkdirat(dfd, "etc", 0755);
+	E_touchat(dfd, "etc/passwd");
+
+	E_symlinkat("/newfile3", dfd, "creatlink");
+	E_symlinkat("etc/", dfd, "reletc");
+	E_symlinkat("etc/passwd", dfd, "relsym");
+	E_symlinkat("/etc/", dfd, "absetc");
+	E_symlinkat("/etc/passwd", dfd, "abssym");
+	E_symlinkat("/cheeky", dfd, "abscheeky");
+
+	E_mkdirat(dfd, "cheeky", 0755);
+
+	E_symlinkat("/", dfd, "cheeky/absself");
+	E_symlinkat("../../root/", dfd, "cheeky/self");
+	E_symlinkat("/../../root/", dfd, "cheeky/garbageself");
+
+	E_symlinkat("../cheeky/../etc/../etc/passwd", dfd, "cheeky/passwd");
+	E_symlinkat("/../cheeky/../etc/../etc/passwd", dfd, "cheeky/abspasswd");
+
+	E_symlinkat("../../../../../../../../../../../../../../etc/passwd",
+		    dfd, "cheeky/dotdotlink");
+	E_symlinkat("/../../../../../../../../../../../../../../etc/passwd",
+		    dfd, "cheeky/garbagelink");
+
+	return dfd;
+}
+
+struct basic_test {
+	const char *name;
+	const char *dir;
+	const char *path;
+	struct open_how how;
+	bool pass;
+	union {
+		int err;
+		const char *path;
+	} out;
+};
+
+#define NUM_OPENAT2_OPATH_TESTS 88
+
+void test_openat2_opath_tests(void)
+{
+	int rootfd, hardcoded_fd;
+	char *procselfexe, *hardcoded_fdpath;
+
+	E_asprintf(&procselfexe, "/proc/%d/exe", getpid());
+	rootfd = setup_testdir();
+
+	hardcoded_fd = open("/dev/null", O_RDONLY);
+	E_assert(hardcoded_fd >= 0, "open fd to hardcode");
+	E_asprintf(&hardcoded_fdpath, "self/fd/%d", hardcoded_fd);
+
+	struct basic_test tests[] = {
+		/** RESOLVE_BENEATH **/
+		/* Attempts to cross dirfd should be blocked. */
+		{ .name = "[beneath] jump to /",
+		  .path = "/",			.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] absolute link to $root",
+		  .path = "cheeky/absself",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] chained absolute links to $root",
+		  .path = "abscheeky/absself",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] jump outside $root",
+		  .path = "..",			.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] temporary jump outside $root",
+		  .path = "../root/",		.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] symlink temporary jump outside $root",
+		  .path = "cheeky/self",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] chained symlink temporary jump outside $root",
+		  .path = "abscheeky/self",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] garbage links to $root",
+		  .path = "cheeky/garbageself",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] chained garbage links to $root",
+		  .path = "abscheeky/garbageself", .how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		/* Only relative paths that stay inside dirfd should work. */
+		{ .name = "[beneath] ordinary path to 'root'",
+		  .path = "root",		.how.resolve = RESOLVE_BENEATH,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[beneath] ordinary path to 'etc'",
+		  .path = "etc",		.how.resolve = RESOLVE_BENEATH,
+		  .out.path = "etc",		.pass = true },
+		{ .name = "[beneath] ordinary path to 'etc/passwd'",
+		  .path = "etc/passwd",		.how.resolve = RESOLVE_BENEATH,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[beneath] relative symlink inside $root",
+		  .path = "relsym",		.how.resolve = RESOLVE_BENEATH,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[beneath] chained-'..' relative symlink inside $root",
+		  .path = "cheeky/passwd",	.how.resolve = RESOLVE_BENEATH,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[beneath] absolute symlink component outside $root",
+		  .path = "abscheeky/passwd",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] absolute symlink target outside $root",
+		  .path = "abssym",		.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] absolute path outside $root",
+		  .path = "/etc/passwd",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] cheeky absolute path outside $root",
+		  .path = "cheeky/abspasswd",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] chained cheeky absolute path outside $root",
+		  .path = "abscheeky/abspasswd", .how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		/* Tricky paths should fail. */
+		{ .name = "[beneath] tricky '..'-chained symlink outside $root",
+		  .path = "cheeky/dotdotlink",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] tricky absolute + '..'-chained symlink outside $root",
+		  .path = "abscheeky/dotdotlink", .how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] tricky garbage link outside $root",
+		  .path = "cheeky/garbagelink",	.how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[beneath] tricky absolute + garbage link outside $root",
+		  .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_BENEATH,
+		  .out.err = -EXDEV,		.pass = false },
+
+		/** RESOLVE_IN_ROOT **/
+		/* All attempts to cross the dirfd will be scoped-to-root. */
+		{ .name = "[in_root] jump to /",
+		  .path = "/",			.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = NULL,		.pass = true },
+		{ .name = "[in_root] absolute symlink to /root",
+		  .path = "cheeky/absself",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = NULL,		.pass = true },
+		{ .name = "[in_root] chained absolute symlinks to /root",
+		  .path = "abscheeky/absself",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = NULL,		.pass = true },
+		{ .name = "[in_root] '..' at root",
+		  .path = "..",			.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = NULL,		.pass = true },
+		{ .name = "[in_root] '../root' at root",
+		  .path = "../root/",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[in_root] relative symlink containing '..' above root",
+		  .path = "cheeky/self",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[in_root] garbage link to /root",
+		  .path = "cheeky/garbageself",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[in_root] chained garbage links to /root",
+		  .path = "abscheeky/garbageself", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[in_root] relative path to 'root'",
+		  .path = "root",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[in_root] relative path to 'etc'",
+		  .path = "etc",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc",		.pass = true },
+		{ .name = "[in_root] relative path to 'etc/passwd'",
+		  .path = "etc/passwd",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] relative symlink to 'etc/passwd'",
+		  .path = "relsym",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] chained-'..' relative symlink to 'etc/passwd'",
+		  .path = "cheeky/passwd",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] chained-'..' absolute + relative symlink to 'etc/passwd'",
+		  .path = "abscheeky/passwd",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] absolute symlink to 'etc/passwd'",
+		  .path = "abssym",		.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] absolute path 'etc/passwd'",
+		  .path = "/etc/passwd",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] cheeky absolute path 'etc/passwd'",
+		  .path = "cheeky/abspasswd",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] chained cheeky absolute path 'etc/passwd'",
+		  .path = "abscheeky/abspasswd", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky '..'-chained symlink outside $root",
+		  .path = "cheeky/dotdotlink",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky absolute + '..'-chained symlink outside $root",
+		  .path = "abscheeky/dotdotlink", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky absolute path + absolute + '..'-chained symlink outside $root",
+		  .path = "/../../../../abscheeky/dotdotlink", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky garbage link outside $root",
+		  .path = "cheeky/garbagelink",	.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky absolute + garbage link outside $root",
+		  .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		{ .name = "[in_root] tricky absolute path + absolute + garbage link outside $root",
+		  .path = "/../../../../abscheeky/garbagelink", .how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "etc/passwd",	.pass = true },
+		/* O_CREAT should handle trailing symlinks correctly. */
+		{ .name = "[in_root] O_CREAT of relative path inside $root",
+		  .path = "newfile1",		.how.flags = O_CREAT,
+						.how.mode = 0700,
+						.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "newfile1",	.pass = true },
+		{ .name = "[in_root] O_CREAT of absolute path",
+		  .path = "/newfile2",		.how.flags = O_CREAT,
+						.how.mode = 0700,
+						.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "newfile2",	.pass = true },
+		{ .name = "[in_root] O_CREAT of tricky symlink outside root",
+		  .path = "/creatlink",		.how.flags = O_CREAT,
+						.how.mode = 0700,
+						.how.resolve = RESOLVE_IN_ROOT,
+		  .out.path = "newfile3",	.pass = true },
+
+		/** RESOLVE_NO_XDEV **/
+		/* Crossing *down* into a mountpoint is disallowed. */
+		{ .name = "[no_xdev] cross into $mnt",
+		  .path = "mnt",		.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] cross into $mnt/",
+		  .path = "mnt/",		.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] cross into $mnt/.",
+		  .path = "mnt/.",		.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		/* Crossing *up* out of a mountpoint is disallowed. */
+		{ .name = "[no_xdev] goto mountpoint root",
+		  .dir = "mnt", .path = ".",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.path = "mnt",		.pass = true },
+		{ .name = "[no_xdev] cross up through '..'",
+		  .dir = "mnt", .path = "..",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] temporary cross up through '..'",
+		  .dir = "mnt", .path = "../mnt", .how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] temporary relative symlink cross up",
+		  .dir = "mnt", .path = "self",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] temporary absolute symlink cross up",
+		  .dir = "mnt", .path = "absself", .how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		/* Jumping to "/" is ok, but later components cannot cross. */
+		{ .name = "[no_xdev] jump to / directly",
+		  .dir = "mnt", .path = "/",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.path = "/",		.pass = true },
+		{ .name = "[no_xdev] jump to / (from /) directly",
+		  .dir = "/", .path = "/",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.path = "/",		.pass = true },
+		{ .name = "[no_xdev] jump to / then proc",
+		  .path = "/proc/1",		.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		{ .name = "[no_xdev] jump to / then tmp",
+		  .path = "/tmp",		.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,		.pass = false },
+		/* Magic-links are blocked since they can switch vfsmounts. */
+		{ .name = "[no_xdev] cross through magic-link to self/root",
+		  .dir = "/proc", .path = "self/root", 	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,			.pass = false },
+		{ .name = "[no_xdev] cross through magic-link to self/cwd",
+		  .dir = "/proc", .path = "self/cwd",	.how.resolve = RESOLVE_NO_XDEV,
+		  .out.err = -EXDEV,			.pass = false },
+		/* Except magic-link jumps inside the same vfsmount. */
+		{ .name = "[no_xdev] jump through magic-link to same procfs",
+		  .dir = "/proc", .path = hardcoded_fdpath, .how.resolve = RESOLVE_NO_XDEV,
+		  .out.path = "/proc",			    .pass = true, },
+
+		/** RESOLVE_NO_MAGICLINKS **/
+		/* Regular symlinks should work. */
+		{ .name = "[no_magiclinks] ordinary relative symlink",
+		  .path = "relsym",		.how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.path = "etc/passwd",	.pass = true },
+		/* Magic-links should not work. */
+		{ .name = "[no_magiclinks] symlink to magic-link",
+		  .path = "procexe",		.how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_magiclinks] normal path to magic-link",
+		  .path = "/proc/self/exe",	.how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_magiclinks] normal path to magic-link with O_NOFOLLOW",
+		  .path = "/proc/self/exe",	.how.flags = O_NOFOLLOW,
+						.how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.path = procselfexe,	.pass = true },
+		{ .name = "[no_magiclinks] symlink to magic-link path component",
+		  .path = "procroot/etc",	.how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_magiclinks] magic-link path component",
+		  .path = "/proc/self/root/etc", .how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_magiclinks] magic-link path component with O_NOFOLLOW",
+		  .path = "/proc/self/root/etc", .how.flags = O_NOFOLLOW,
+						 .how.resolve = RESOLVE_NO_MAGICLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+
+		/** RESOLVE_NO_SYMLINKS **/
+		/* Normal paths should work. */
+		{ .name = "[no_symlinks] ordinary path to '.'",
+		  .path = ".",			.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = NULL,		.pass = true },
+		{ .name = "[no_symlinks] ordinary path to 'root'",
+		  .path = "root",		.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "root",		.pass = true },
+		{ .name = "[no_symlinks] ordinary path to 'etc'",
+		  .path = "etc",		.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "etc",		.pass = true },
+		{ .name = "[no_symlinks] ordinary path to 'etc/passwd'",
+		  .path = "etc/passwd",		.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "etc/passwd",	.pass = true },
+		/* Regular symlinks are blocked. */
+		{ .name = "[no_symlinks] relative symlink target",
+		  .path = "relsym",		.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] relative symlink component",
+		  .path = "reletc/passwd",	.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] absolute symlink target",
+		  .path = "abssym",		.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] absolute symlink component",
+		  .path = "absetc/passwd",	.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] cheeky garbage link",
+		  .path = "cheeky/garbagelink",	.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] cheeky absolute + garbage link",
+		  .path = "abscheeky/garbagelink", .how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] cheeky absolute + absolute symlink",
+		  .path = "abscheeky/absself",	.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		/* Trailing symlinks with NO_FOLLOW. */
+		{ .name = "[no_symlinks] relative symlink with O_NOFOLLOW",
+		  .path = "relsym",		.how.flags = O_NOFOLLOW,
+						.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "relsym",		.pass = true },
+		{ .name = "[no_symlinks] absolute symlink with O_NOFOLLOW",
+		  .path = "abssym",		.how.flags = O_NOFOLLOW,
+						.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "abssym",		.pass = true },
+		{ .name = "[no_symlinks] trailing symlink with O_NOFOLLOW",
+		  .path = "cheeky/garbagelink",	.how.flags = O_NOFOLLOW,
+						.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.path = "cheeky/garbagelink", .pass = true },
+		{ .name = "[no_symlinks] multiple symlink components with O_NOFOLLOW",
+		  .path = "abscheeky/absself",	.how.flags = O_NOFOLLOW,
+						.how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+		{ .name = "[no_symlinks] multiple symlink (and garbage link) components with O_NOFOLLOW",
+		  .path = "abscheeky/garbagelink", .how.flags = O_NOFOLLOW,
+						   .how.resolve = RESOLVE_NO_SYMLINKS,
+		  .out.err = -ELOOP,		.pass = false },
+	};
+
+	BUILD_BUG_ON(ARRAY_LEN(tests) != NUM_OPENAT2_OPATH_TESTS);
+
+	for (int i = 0; i < ARRAY_LEN(tests); i++) {
+		int dfd, fd;
+		char *fdpath = NULL;
+		bool failed;
+		void (*resultfn)(const char *msg, ...) = ksft_test_result_pass;
+		struct basic_test *test = &tests[i];
+
+		if (!openat2_supported) {
+			ksft_print_msg("openat2(2) unsupported\n");
+			resultfn = ksft_test_result_skip;
+			goto skip;
+		}
+
+		/* Auto-set O_PATH. */
+		if (!(test->how.flags & O_CREAT))
+			test->how.flags |= O_PATH;
+
+		if (test->dir)
+			dfd = openat(rootfd, test->dir, O_PATH | O_DIRECTORY);
+		else
+			dfd = dup(rootfd);
+		E_assert(dfd, "failed to openat root '%s': %m", test->dir);
+
+		E_dup2(dfd, hardcoded_fd);
+
+		fd = sys_openat2(dfd, test->path, &test->how);
+		if (test->pass)
+			failed = (fd < 0 || !fdequal(fd, rootfd, test->out.path));
+		else
+			failed = (fd != test->out.err);
+		if (fd >= 0) {
+			fdpath = fdreadlink(fd);
+			close(fd);
+		}
+		close(dfd);
+
+		if (failed) {
+			resultfn = ksft_test_result_fail;
+
+			ksft_print_msg("openat2 unexpectedly returned ");
+			if (fdpath)
+				ksft_print_msg("%d['%s']\n", fd, fdpath);
+			else
+				ksft_print_msg("%d (%s)\n", fd, strerror(-fd));
+		}
+
+skip:
+		if (test->pass)
+			resultfn("%s gives path '%s'\n", test->name,
+				 test->out.path ?: ".");
+		else
+			resultfn("%s fails with %d (%s)\n", test->name,
+				 test->out.err, strerror(-test->out.err));
+
+		fflush(stdout);
+		free(fdpath);
+	}
+
+	free(procselfexe);
+	close(rootfd);
+
+	free(hardcoded_fdpath);
+	close(hardcoded_fd);
+}
+
+#define NUM_TESTS NUM_OPENAT2_OPATH_TESTS
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(NUM_TESTS);
+
+	/* NOTE: We should be checking for CAP_SYS_ADMIN here... */
+	if (geteuid() != 0)
+		ksft_exit_skip("all tests require euid == 0\n");
+
+	test_openat2_opath_tests();
+
+	if (ksft_get_fail_cnt() + ksft_get_error_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/pci_endpoint/.gitignore b/tools/testing/selftests/pci_endpoint/.gitignore
new file mode 100644
index 000000000000..6a4837a3e034
--- /dev/null
+++ b/tools/testing/selftests/pci_endpoint/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+pci_endpoint_test
diff --git a/tools/testing/selftests/pci_endpoint/Makefile b/tools/testing/selftests/pci_endpoint/Makefile
new file mode 100644
index 000000000000..bf21ebf20b4a
--- /dev/null
+++ b/tools/testing/selftests/pci_endpoint/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -O2 -Wl,-no-as-needed -Wall $(KHDR_INCLUDES)
+LDFLAGS += -lrt -lpthread -lm
+
+TEST_GEN_PROGS = pci_endpoint_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/pci_endpoint/config b/tools/testing/selftests/pci_endpoint/config
new file mode 100644
index 000000000000..7cdcf117db8d
--- /dev/null
+++ b/tools/testing/selftests/pci_endpoint/config
@@ -0,0 +1,4 @@
+CONFIG_PCI_ENDPOINT=y
+CONFIG_PCI_ENDPOINT_CONFIGFS=y
+CONFIG_PCI_EPF_TEST=m
+CONFIG_PCI_ENDPOINT_TEST=m
diff --git a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
new file mode 100644
index 000000000000..23aac6f97061
--- /dev/null
+++ b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
@@ -0,0 +1,264 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Kselftest for PCI Endpoint Subsystem
+ *
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
+ *             https://www.samsung.com
+ * Author: Aman Gupta <aman1.gupta@samsung.com>
+ *
+ * Copyright (c) 2024, Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include "../../../../include/uapi/linux/pcitest.h"
+
+#include "kselftest_harness.h"
+
+#define pci_ep_ioctl(cmd, arg)			\
+({						\
+	ret = ioctl(self->fd, cmd, arg);	\
+	ret = ret < 0 ? -errno : ret;		\
+})
+
+static const char *test_device = "/dev/pci-endpoint-test.0";
+static const unsigned long test_size[5] = { 1, 1024, 1025, 1024000, 1024001 };
+
+FIXTURE(pci_ep_bar)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(pci_ep_bar)
+{
+	self->fd = open(test_device, O_RDWR);
+
+	ASSERT_NE(-1, self->fd) TH_LOG("Can't open PCI Endpoint Test device");
+}
+
+FIXTURE_TEARDOWN(pci_ep_bar)
+{
+	close(self->fd);
+}
+
+FIXTURE_VARIANT(pci_ep_bar)
+{
+	int barno;
+};
+
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR0) { .barno = 0 };
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR1) { .barno = 1 };
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR2) { .barno = 2 };
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR3) { .barno = 3 };
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR4) { .barno = 4 };
+FIXTURE_VARIANT_ADD(pci_ep_bar, BAR5) { .barno = 5 };
+
+TEST_F(pci_ep_bar, BAR_TEST)
+{
+	int ret;
+
+	pci_ep_ioctl(PCITEST_BAR, variant->barno);
+	if (ret == -ENODATA)
+		SKIP(return, "BAR is disabled");
+	EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno);
+}
+
+FIXTURE(pci_ep_basic)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(pci_ep_basic)
+{
+	self->fd = open(test_device, O_RDWR);
+
+	ASSERT_NE(-1, self->fd) TH_LOG("Can't open PCI Endpoint Test device");
+}
+
+FIXTURE_TEARDOWN(pci_ep_basic)
+{
+	close(self->fd);
+}
+
+TEST_F(pci_ep_basic, CONSECUTIVE_BAR_TEST)
+{
+	int ret;
+
+	pci_ep_ioctl(PCITEST_BARS, 0);
+	EXPECT_FALSE(ret) TH_LOG("Consecutive BAR test failed");
+}
+
+TEST_F(pci_ep_basic, LEGACY_IRQ_TEST)
+{
+	int ret;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_INTX);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set Legacy IRQ type");
+
+	pci_ep_ioctl(PCITEST_GET_IRQTYPE, 0);
+	ASSERT_EQ(PCITEST_IRQ_TYPE_INTX, ret) TH_LOG("Can't get Legacy IRQ type");
+
+	pci_ep_ioctl(PCITEST_LEGACY_IRQ, 0);
+	EXPECT_FALSE(ret) TH_LOG("Test failed for Legacy IRQ");
+}
+
+TEST_F(pci_ep_basic, MSI_TEST)
+{
+	int ret, i;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_MSI);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set MSI IRQ type");
+
+	pci_ep_ioctl(PCITEST_GET_IRQTYPE, 0);
+	ASSERT_EQ(PCITEST_IRQ_TYPE_MSI, ret) TH_LOG("Can't get MSI IRQ type");
+
+	for (i = 1; i <= 32; i++) {
+		pci_ep_ioctl(PCITEST_MSI, i);
+		if (ret == -EINVAL)
+			SKIP(return, "MSI%d is disabled", i);
+		EXPECT_FALSE(ret) TH_LOG("Test failed for MSI%d", i);
+	}
+}
+
+TEST_F(pci_ep_basic, MSIX_TEST)
+{
+	int ret, i;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_MSIX);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set MSI-X IRQ type");
+
+	pci_ep_ioctl(PCITEST_GET_IRQTYPE, 0);
+	ASSERT_EQ(PCITEST_IRQ_TYPE_MSIX, ret) TH_LOG("Can't get MSI-X IRQ type");
+
+	for (i = 1; i <= 2048; i++) {
+		pci_ep_ioctl(PCITEST_MSIX, i);
+		if (ret == -EINVAL)
+			SKIP(return, "MSI-X%d is disabled", i);
+		EXPECT_FALSE(ret) TH_LOG("Test failed for MSI-X%d", i);
+	}
+}
+
+FIXTURE(pci_ep_data_transfer)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(pci_ep_data_transfer)
+{
+	self->fd = open(test_device, O_RDWR);
+
+	ASSERT_NE(-1, self->fd) TH_LOG("Can't open PCI Endpoint Test device");
+}
+
+FIXTURE_TEARDOWN(pci_ep_data_transfer)
+{
+	close(self->fd);
+}
+
+FIXTURE_VARIANT(pci_ep_data_transfer)
+{
+	bool use_dma;
+};
+
+FIXTURE_VARIANT_ADD(pci_ep_data_transfer, memcpy)
+{
+	.use_dma = false,
+};
+
+FIXTURE_VARIANT_ADD(pci_ep_data_transfer, dma)
+{
+	.use_dma = true,
+};
+
+TEST_F(pci_ep_data_transfer, READ_TEST)
+{
+	struct pci_endpoint_test_xfer_param param = {};
+	int ret, i;
+
+	if (variant->use_dma)
+		param.flags = PCITEST_FLAGS_USE_DMA;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type");
+
+	for (i = 0; i < ARRAY_SIZE(test_size); i++) {
+		param.size = test_size[i];
+		pci_ep_ioctl(PCITEST_READ, &param);
+		EXPECT_FALSE(ret) TH_LOG("Test failed for size (%ld)",
+					 test_size[i]);
+	}
+}
+
+TEST_F(pci_ep_data_transfer, WRITE_TEST)
+{
+	struct pci_endpoint_test_xfer_param param = {};
+	int ret, i;
+
+	if (variant->use_dma)
+		param.flags = PCITEST_FLAGS_USE_DMA;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type");
+
+	for (i = 0; i < ARRAY_SIZE(test_size); i++) {
+		param.size = test_size[i];
+		pci_ep_ioctl(PCITEST_WRITE, &param);
+		EXPECT_FALSE(ret) TH_LOG("Test failed for size (%ld)",
+					 test_size[i]);
+	}
+}
+
+TEST_F(pci_ep_data_transfer, COPY_TEST)
+{
+	struct pci_endpoint_test_xfer_param param = {};
+	int ret, i;
+
+	if (variant->use_dma)
+		param.flags = PCITEST_FLAGS_USE_DMA;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type");
+
+	for (i = 0; i < ARRAY_SIZE(test_size); i++) {
+		param.size = test_size[i];
+		pci_ep_ioctl(PCITEST_COPY, &param);
+		EXPECT_FALSE(ret) TH_LOG("Test failed for size (%ld)",
+					 test_size[i]);
+	}
+}
+
+FIXTURE(pcie_ep_doorbell)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(pcie_ep_doorbell)
+{
+	self->fd = open(test_device, O_RDWR);
+
+	ASSERT_NE(-1, self->fd) TH_LOG("Can't open PCI Endpoint Test device");
+};
+
+FIXTURE_TEARDOWN(pcie_ep_doorbell)
+{
+	close(self->fd);
+};
+
+TEST_F(pcie_ep_doorbell, DOORBELL_TEST)
+{
+	int ret;
+
+	pci_ep_ioctl(PCITEST_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO);
+	ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type");
+
+	pci_ep_ioctl(PCITEST_DOORBELL, 0);
+	EXPECT_FALSE(ret) TH_LOG("Test failed for Doorbell\n");
+}
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pcie_bwctrl/Makefile b/tools/testing/selftests/pcie_bwctrl/Makefile
new file mode 100644
index 000000000000..277f92f9d753
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/Makefile
@@ -0,0 +1,3 @@
+TEST_PROGS = set_pcie_cooling_state.sh
+TEST_FILES = set_pcie_speed.sh
+include ../lib.mk
diff --git a/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh b/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh
new file mode 100755
index 000000000000..9df606552af3
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/set_pcie_cooling_state.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+SYSFS=
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+retval=0
+skipmsg="skip all tests:"
+
+PCIEPORTTYPE="PCIe_Port_Link_Speed"
+
+prerequisite()
+{
+	local ports
+
+	if [ $UID != 0 ]; then
+		echo $skipmsg must be run as root >&2
+		exit $ksft_skip
+	fi
+
+	SYSFS=`mount -t sysfs | head -1 | awk '{ print $3 }'`
+
+	if [ ! -d "$SYSFS" ]; then
+		echo $skipmsg sysfs is not mounted >&2
+		exit $ksft_skip
+	fi
+
+	if ! ls $SYSFS/class/thermal/cooling_device* > /dev/null 2>&1; then
+		echo $skipmsg thermal cooling devices missing >&2
+		exit $ksft_skip
+	fi
+
+	ports=`grep -e "^$PCIEPORTTYPE" $SYSFS/class/thermal/cooling_device*/type | wc -l`
+	if [ $ports -eq 0 ]; then
+		echo $skipmsg pcie cooling devices missing >&2
+		exit $ksft_skip
+	fi
+}
+
+testport=
+find_pcie_port()
+{
+	local patt="$1"
+	local pcieports
+	local max
+	local cur
+	local delta
+	local bestdelta=-1
+
+	pcieports=`grep -l -F -e "$patt" /sys/class/thermal/cooling_device*/type`
+	if [ -z "$pcieports" ]; then
+		return
+	fi
+	pcieports=${pcieports//\/type/}
+	# Find the port with the highest PCIe Link Speed
+	for port in $pcieports; do
+		max=`cat $port/max_state`
+		cur=`cat $port/cur_state`
+		delta=$((max-cur))
+		if [ $delta -gt $bestdelta ]; then
+			testport="$port"
+			bestdelta=$delta
+		fi
+	done
+}
+
+sysfspcidev=
+find_sysfs_pci_dev()
+{
+	local typefile="$1/type"
+	local pcidir
+
+	pcidir="$SYSFS/bus/pci/devices/`sed -e "s|^${PCIEPORTTYPE}_||g" $typefile`"
+
+	if [ -r "$pcidir/current_link_speed" ]; then
+		sysfspcidev="$pcidir/current_link_speed"
+	fi
+}
+
+usage()
+{
+	echo "Usage $0 [ -d dev ]"
+	echo -e "\t-d: PCIe port BDF string (e.g., 0000:00:04.0)"
+}
+
+pattern="$PCIEPORTTYPE"
+parse_arguments()
+{
+	while getopts d:h opt; do
+		case $opt in
+			h)
+				usage "$0"
+				exit 0
+				;;
+			d)
+				pattern="$PCIEPORTTYPE_$OPTARG"
+				;;
+			*)
+				usage "$0"
+				exit 0
+				;;
+		esac
+	done
+}
+
+parse_arguments "$@"
+prerequisite
+find_pcie_port "$pattern"
+if [ -z "$testport" ]; then
+	echo $skipmsg "pcie cooling device not found from sysfs" >&2
+	exit $ksft_skip
+fi
+find_sysfs_pci_dev "$testport"
+if [ -z "$sysfspcidev" ]; then
+	echo $skipmsg "PCIe port device not found from sysfs" >&2
+	exit $ksft_skip
+fi
+
+./set_pcie_speed.sh "$testport" "$sysfspcidev"
+retval=$?
+
+exit $retval
diff --git a/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh b/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh
new file mode 100755
index 000000000000..584596949312
--- /dev/null
+++ b/tools/testing/selftests/pcie_bwctrl/set_pcie_speed.sh
@@ -0,0 +1,67 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+set -e
+
+TESTNAME=set_pcie_speed
+
+declare -a PCIELINKSPEED=(
+	"2.5 GT/s PCIe"
+	"5.0 GT/s PCIe"
+	"8.0 GT/s PCIe"
+	"16.0 GT/s PCIe"
+	"32.0 GT/s PCIe"
+	"64.0 GT/s PCIe"
+)
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+retval=0
+
+coolingdev="$1"
+statefile="$coolingdev/cur_state"
+maxfile="$coolingdev/max_state"
+linkspeedfile="$2"
+
+oldstate=`cat $statefile`
+maxstate=`cat $maxfile`
+
+set_state()
+{
+	local state=$1
+	local linkspeed
+	local expected_linkspeed
+
+	echo $state > $statefile
+
+	sleep 1
+
+	linkspeed="`cat $linkspeedfile`"
+	expected_linkspeed=$((maxstate-state))
+	expected_str="${PCIELINKSPEED[$expected_linkspeed]}"
+	if [ ! "${expected_str}" = "${linkspeed}" ]; then
+		echo "$TESTNAME failed: expected: ${expected_str}; got ${linkspeed}"
+		retval=1
+	fi
+}
+
+cleanup_skip ()
+{
+	set_state $oldstate
+	exit $ksft_skip
+}
+
+trap cleanup_skip EXIT
+
+echo "$TESTNAME: testing states $maxstate .. $oldstate with $coolingdev"
+for i in $(seq $maxstate -1 $oldstate); do
+	set_state "$i"
+done
+
+trap EXIT
+if [ $retval -eq 0 ]; then
+	echo "$TESTNAME [PASS]"
+else
+	echo "$TESTNAME [FAIL]"
+fi
+exit $retval
diff --git a/tools/testing/selftests/perf_events/.gitignore b/tools/testing/selftests/perf_events/.gitignore
new file mode 100644
index 000000000000..4931b3b6bbd3
--- /dev/null
+++ b/tools/testing/selftests/perf_events/.gitignore
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+sigtrap_threads
+remove_on_exec
+watermark_signal
+mmap
diff --git a/tools/testing/selftests/perf_events/Makefile b/tools/testing/selftests/perf_events/Makefile
new file mode 100644
index 000000000000..2e5d85770dfe
--- /dev/null
+++ b/tools/testing/selftests/perf_events/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wl,-no-as-needed -Wall $(KHDR_INCLUDES)
+LDFLAGS += -lpthread
+
+TEST_GEN_PROGS := sigtrap_threads remove_on_exec watermark_signal mmap
+include ../lib.mk
diff --git a/tools/testing/selftests/perf_events/config b/tools/testing/selftests/perf_events/config
new file mode 100644
index 000000000000..ba58ff2203e4
--- /dev/null
+++ b/tools/testing/selftests/perf_events/config
@@ -0,0 +1 @@
+CONFIG_PERF_EVENTS=y
diff --git a/tools/testing/selftests/perf_events/mmap.c b/tools/testing/selftests/perf_events/mmap.c
new file mode 100644
index 000000000000..d1fa8ec58987
--- /dev/null
+++ b/tools/testing/selftests/perf_events/mmap.c
@@ -0,0 +1,236 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#define _GNU_SOURCE
+
+#include <dirent.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+
+#include <linux/perf_event.h>
+
+#include "kselftest_harness.h"
+
+#define RB_SIZE		0x3000
+#define AUX_SIZE	0x10000
+#define AUX_OFFS	0x4000
+
+#define HOLE_SIZE	0x1000
+
+/* Reserve space for rb, aux with space for shrink-beyond-vma testing. */
+#define REGION_SIZE	(2 * RB_SIZE + 2 * AUX_SIZE)
+#define REGION_AUX_OFFS (2 * RB_SIZE)
+
+#define MAP_BASE	1
+#define MAP_AUX		2
+
+#define EVENT_SRC_DIR	"/sys/bus/event_source/devices"
+
+FIXTURE(perf_mmap)
+{
+	int		fd;
+	void		*ptr;
+	void		*region;
+};
+
+FIXTURE_VARIANT(perf_mmap)
+{
+	bool		aux;
+	unsigned long	ptr_size;
+};
+
+FIXTURE_VARIANT_ADD(perf_mmap, rb)
+{
+	.aux = false,
+	.ptr_size = RB_SIZE,
+};
+
+FIXTURE_VARIANT_ADD(perf_mmap, aux)
+{
+	.aux = true,
+	.ptr_size = AUX_SIZE,
+};
+
+static bool read_event_type(struct dirent *dent, __u32 *type)
+{
+	char typefn[512];
+	FILE *fp;
+	int res;
+
+	snprintf(typefn, sizeof(typefn), "%s/%s/type", EVENT_SRC_DIR, dent->d_name);
+	fp = fopen(typefn, "r");
+	if (!fp)
+		return false;
+
+	res = fscanf(fp, "%u", type);
+	fclose(fp);
+	return res > 0;
+}
+
+FIXTURE_SETUP(perf_mmap)
+{
+	struct perf_event_attr attr = {
+		.size		= sizeof(attr),
+		.disabled	= 1,
+		.exclude_kernel	= 1,
+		.exclude_hv	= 1,
+	};
+	struct perf_event_attr attr_ok = {};
+	unsigned int eacces = 0, map = 0;
+	struct perf_event_mmap_page *rb;
+	struct dirent *dent;
+	void *aux, *region;
+	DIR *dir;
+
+	self->ptr = NULL;
+
+	dir = opendir(EVENT_SRC_DIR);
+	if (!dir)
+		SKIP(return, "perf not available.");
+
+	region = mmap(NULL, REGION_SIZE, PROT_NONE, MAP_ANON | MAP_PRIVATE, -1, 0);
+	ASSERT_NE(region, MAP_FAILED);
+	self->region = region;
+
+	// Try to find a suitable event on this system
+	while ((dent = readdir(dir))) {
+		int fd;
+
+		if (!read_event_type(dent, &attr.type))
+			continue;
+
+		fd = syscall(SYS_perf_event_open, &attr, 0, -1, -1, 0);
+		if (fd < 0) {
+			if (errno == EACCES)
+				eacces++;
+			continue;
+		}
+
+		// Check whether the event supports mmap()
+		rb = mmap(region, RB_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, fd, 0);
+		if (rb == MAP_FAILED) {
+			close(fd);
+			continue;
+		}
+
+		if (!map) {
+			// Save the event in case that no AUX capable event is found
+			attr_ok = attr;
+			map = MAP_BASE;
+		}
+
+		if (!variant->aux)
+			continue;
+
+		rb->aux_offset = AUX_OFFS;
+		rb->aux_size = AUX_SIZE;
+
+		// Check whether it supports a AUX buffer
+		aux = mmap(region + REGION_AUX_OFFS, AUX_SIZE, PROT_READ | PROT_WRITE,
+			   MAP_SHARED | MAP_FIXED, fd, AUX_OFFS);
+		if (aux == MAP_FAILED) {
+			munmap(rb, RB_SIZE);
+			close(fd);
+			continue;
+		}
+
+		attr_ok = attr;
+		map = MAP_AUX;
+		munmap(aux, AUX_SIZE);
+		munmap(rb, RB_SIZE);
+		close(fd);
+		break;
+	}
+	closedir(dir);
+
+	if (!map) {
+		if (!eacces)
+			SKIP(return, "No mappable perf event found.");
+		else
+			SKIP(return, "No permissions for perf_event_open()");
+	}
+
+	self->fd = syscall(SYS_perf_event_open, &attr_ok, 0, -1, -1, 0);
+	ASSERT_NE(self->fd, -1);
+
+	rb = mmap(region, RB_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED, self->fd, 0);
+	ASSERT_NE(rb, MAP_FAILED);
+
+	if (!variant->aux) {
+		self->ptr = rb;
+		return;
+	}
+
+	if (map != MAP_AUX)
+		SKIP(return, "No AUX event found.");
+
+	rb->aux_offset = AUX_OFFS;
+	rb->aux_size = AUX_SIZE;
+	aux = mmap(region + REGION_AUX_OFFS, AUX_SIZE, PROT_READ | PROT_WRITE,
+		   MAP_SHARED | MAP_FIXED, self->fd, AUX_OFFS);
+	ASSERT_NE(aux, MAP_FAILED);
+	self->ptr = aux;
+}
+
+FIXTURE_TEARDOWN(perf_mmap)
+{
+	ASSERT_EQ(munmap(self->region, REGION_SIZE), 0);
+	if (self->fd != -1)
+		ASSERT_EQ(close(self->fd), 0);
+}
+
+TEST_F(perf_mmap, remap)
+{
+	void *tmp, *ptr = self->ptr;
+	unsigned long size = variant->ptr_size;
+
+	// Test the invalid remaps
+	ASSERT_EQ(mremap(ptr, size, HOLE_SIZE, MREMAP_MAYMOVE), MAP_FAILED);
+	ASSERT_EQ(mremap(ptr + HOLE_SIZE, size, HOLE_SIZE, MREMAP_MAYMOVE), MAP_FAILED);
+	ASSERT_EQ(mremap(ptr + size - HOLE_SIZE, HOLE_SIZE, size, MREMAP_MAYMOVE), MAP_FAILED);
+	// Shrink the end of the mapping such that we only unmap past end of the VMA,
+	// which should succeed and poke a hole into the PROT_NONE region
+	ASSERT_NE(mremap(ptr + size - HOLE_SIZE, size, HOLE_SIZE, MREMAP_MAYMOVE), MAP_FAILED);
+
+	// Remap the whole buffer to a new address
+	tmp = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(tmp, MAP_FAILED);
+
+	// Try splitting offset 1 hole size into VMA, this should fail
+	ASSERT_EQ(mremap(ptr + HOLE_SIZE, size - HOLE_SIZE, size - HOLE_SIZE,
+			 MREMAP_MAYMOVE | MREMAP_FIXED, tmp), MAP_FAILED);
+	// Remapping the whole thing should succeed fine
+	ptr = mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, tmp);
+	ASSERT_EQ(ptr, tmp);
+	ASSERT_EQ(munmap(tmp, size), 0);
+}
+
+TEST_F(perf_mmap, unmap)
+{
+	unsigned long size = variant->ptr_size;
+
+	// Try to poke holes into the mappings
+	ASSERT_NE(munmap(self->ptr, HOLE_SIZE), 0);
+	ASSERT_NE(munmap(self->ptr + HOLE_SIZE, HOLE_SIZE), 0);
+	ASSERT_NE(munmap(self->ptr + size - HOLE_SIZE, HOLE_SIZE), 0);
+}
+
+TEST_F(perf_mmap, map)
+{
+	unsigned long size = variant->ptr_size;
+
+	// Try to poke holes into the mappings by mapping anonymous memory over it
+	ASSERT_EQ(mmap(self->ptr, HOLE_SIZE, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0), MAP_FAILED);
+	ASSERT_EQ(mmap(self->ptr + HOLE_SIZE, HOLE_SIZE, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0), MAP_FAILED);
+	ASSERT_EQ(mmap(self->ptr + size - HOLE_SIZE, HOLE_SIZE, PROT_READ | PROT_WRITE,
+		       MAP_PRIVATE | MAP_ANON | MAP_FIXED, -1, 0), MAP_FAILED);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/perf_events/remove_on_exec.c b/tools/testing/selftests/perf_events/remove_on_exec.c
new file mode 100644
index 000000000000..89e7b06835df
--- /dev/null
+++ b/tools/testing/selftests/perf_events/remove_on_exec.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for remove_on_exec.
+ *
+ * Copyright (C) 2021, Google LLC.
+ */
+
+#define _GNU_SOURCE
+
+/* We need the latest siginfo from the kernel repo. */
+#include <sys/types.h>
+#include <asm/siginfo.h>
+#define __have_siginfo_t 1
+#define __have_sigval_t 1
+#define __have_sigevent_t 1
+#define __siginfo_t_defined
+#define __sigval_t_defined
+#define __sigevent_t_defined
+#define _BITS_SIGINFO_CONSTS_H 1
+#define _BITS_SIGEVENT_CONSTS_H 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <linux/perf_event.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+static volatile int signal_count;
+
+static struct perf_event_attr make_event_attr(void)
+{
+	struct perf_event_attr attr = {
+		.type		= PERF_TYPE_HARDWARE,
+		.size		= sizeof(attr),
+		.config		= PERF_COUNT_HW_INSTRUCTIONS,
+		.sample_period	= 1000,
+		.exclude_kernel = 1,
+		.exclude_hv	= 1,
+		.disabled	= 1,
+		.inherit	= 1,
+		/*
+		 * Children normally retain their inherited event on exec; with
+		 * remove_on_exec, we'll remove their event, but the parent and
+		 * any other non-exec'd children will keep their events.
+		 */
+		.remove_on_exec = 1,
+		.sigtrap	= 1,
+	};
+	return attr;
+}
+
+static void sigtrap_handler(int signum, siginfo_t *info, void *ucontext)
+{
+	if (info->si_code != TRAP_PERF) {
+		fprintf(stderr, "%s: unexpected si_code %d\n", __func__, info->si_code);
+		return;
+	}
+
+	signal_count++;
+}
+
+FIXTURE(remove_on_exec)
+{
+	struct sigaction oldact;
+	int fd;
+};
+
+FIXTURE_SETUP(remove_on_exec)
+{
+	struct perf_event_attr attr = make_event_attr();
+	struct sigaction action = {};
+
+	signal_count = 0;
+
+	/* Initialize sigtrap handler. */
+	action.sa_flags = SA_SIGINFO | SA_NODEFER;
+	action.sa_sigaction = sigtrap_handler;
+	sigemptyset(&action.sa_mask);
+	ASSERT_EQ(sigaction(SIGTRAP, &action, &self->oldact), 0);
+
+	/* Initialize perf event. */
+	self->fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, PERF_FLAG_FD_CLOEXEC);
+	ASSERT_NE(self->fd, -1);
+}
+
+FIXTURE_TEARDOWN(remove_on_exec)
+{
+	close(self->fd);
+	sigaction(SIGTRAP, &self->oldact, NULL);
+}
+
+/* Verify event propagates to fork'd child. */
+TEST_F(remove_on_exec, fork_only)
+{
+	int status;
+	pid_t pid = fork();
+
+	if (pid == 0) {
+		ASSERT_EQ(signal_count, 0);
+		ASSERT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+		while (!signal_count);
+		_exit(42);
+	}
+
+	while (!signal_count); /* Child enables event. */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(WEXITSTATUS(status), 42);
+}
+
+/*
+ * Verify that event does _not_ propagate to fork+exec'd child; event enabled
+ * after fork+exec.
+ */
+TEST_F(remove_on_exec, fork_exec_then_enable)
+{
+	pid_t pid_exec, pid_only_fork;
+	int pipefd[2];
+	int tmp;
+
+	/*
+	 * Non-exec child, to ensure exec does not affect inherited events of
+	 * other children.
+	 */
+	pid_only_fork = fork();
+	if (pid_only_fork == 0) {
+		/* Block until parent enables event. */
+		while (!signal_count);
+		_exit(42);
+	}
+
+	ASSERT_NE(pipe(pipefd), -1);
+	pid_exec = fork();
+	if (pid_exec == 0) {
+		ASSERT_NE(dup2(pipefd[1], STDOUT_FILENO), -1);
+		close(pipefd[0]);
+		execl("/proc/self/exe", "exec_child", NULL);
+		_exit((perror("exec failed"), 1));
+	}
+	close(pipefd[1]);
+
+	ASSERT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Child is running. */
+	/* Wait for exec'd child to start spinning. */
+	EXPECT_EQ(read(pipefd[0], &tmp, sizeof(int)), sizeof(int));
+	EXPECT_EQ(tmp, 42);
+	close(pipefd[0]);
+	/* Now we can enable the event, knowing the child is doing work. */
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	/* If the event propagated to the exec'd child, it will exit normally... */
+	usleep(100000); /* ... give time for event to trigger (in case of bug). */
+	EXPECT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Should still be running. */
+	EXPECT_EQ(kill(pid_exec, SIGKILL), 0);
+
+	/* Verify removal from child did not affect this task's event. */
+	tmp = signal_count;
+	while (signal_count == tmp); /* Should not hang! */
+	/* Nor should it have affected the first child. */
+	EXPECT_EQ(waitpid(pid_only_fork, &tmp, 0), pid_only_fork);
+	EXPECT_EQ(WEXITSTATUS(tmp), 42);
+}
+
+/*
+ * Verify that event does _not_ propagate to fork+exec'd child; event enabled
+ * before fork+exec.
+ */
+TEST_F(remove_on_exec, enable_then_fork_exec)
+{
+	pid_t pid_exec;
+	int tmp;
+
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+
+	pid_exec = fork();
+	if (pid_exec == 0) {
+		execl("/proc/self/exe", "exec_child", NULL);
+		_exit((perror("exec failed"), 1));
+	}
+
+	/*
+	 * The child may exit abnormally at any time if the event propagated and
+	 * a SIGTRAP is sent before the handler was set up.
+	 */
+	usleep(100000); /* ... give time for event to trigger (in case of bug). */
+	EXPECT_EQ(waitpid(pid_exec, &tmp, WNOHANG), 0); /* Should still be running. */
+	EXPECT_EQ(kill(pid_exec, SIGKILL), 0);
+
+	/* Verify removal from child did not affect this task's event. */
+	tmp = signal_count;
+	while (signal_count == tmp); /* Should not hang! */
+}
+
+TEST_F(remove_on_exec, exec_stress)
+{
+	pid_t pids[30];
+	int i, tmp;
+
+	for (i = 0; i < sizeof(pids) / sizeof(pids[0]); i++) {
+		pids[i] = fork();
+		if (pids[i] == 0) {
+			execl("/proc/self/exe", "exec_child", NULL);
+			_exit((perror("exec failed"), 1));
+		}
+
+		/* Some forked with event disabled, rest with enabled. */
+		if (i > 10)
+			EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	}
+
+	usleep(100000); /* ... give time for event to trigger (in case of bug). */
+
+	for (i = 0; i < sizeof(pids) / sizeof(pids[0]); i++) {
+		/* All children should still be running. */
+		EXPECT_EQ(waitpid(pids[i], &tmp, WNOHANG), 0);
+		EXPECT_EQ(kill(pids[i], SIGKILL), 0);
+	}
+
+	/* Verify event is still alive. */
+	tmp = signal_count;
+	while (signal_count == tmp);
+}
+
+/* For exec'd child. */
+static void exec_child(void)
+{
+	struct sigaction action = {};
+	const int val = 42;
+
+	/* Set up sigtrap handler in case we erroneously receive a trap. */
+	action.sa_flags = SA_SIGINFO | SA_NODEFER;
+	action.sa_sigaction = sigtrap_handler;
+	sigemptyset(&action.sa_mask);
+	if (sigaction(SIGTRAP, &action, NULL))
+		_exit((perror("sigaction failed"), 1));
+
+	/* Signal parent that we're starting to spin. */
+	if (write(STDOUT_FILENO, &val, sizeof(int)) == -1)
+		_exit((perror("write failed"), 1));
+
+	/* Should hang here until killed. */
+	while (!signal_count);
+}
+
+#define main test_main
+TEST_HARNESS_MAIN
+#undef main
+int main(int argc, char *argv[])
+{
+	if (!strcmp(argv[0], "exec_child")) {
+		exec_child();
+		return 1;
+	}
+
+	return test_main(argc, argv);
+}
diff --git a/tools/testing/selftests/perf_events/settings b/tools/testing/selftests/perf_events/settings
new file mode 100644
index 000000000000..6091b45d226b
--- /dev/null
+++ b/tools/testing/selftests/perf_events/settings
@@ -0,0 +1 @@
+timeout=120
diff --git a/tools/testing/selftests/perf_events/sigtrap_threads.c b/tools/testing/selftests/perf_events/sigtrap_threads.c
new file mode 100644
index 000000000000..b5cf8355345d
--- /dev/null
+++ b/tools/testing/selftests/perf_events/sigtrap_threads.c
@@ -0,0 +1,240 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for perf events with SIGTRAP across all threads.
+ *
+ * Copyright (C) 2021, Google LLC.
+ */
+
+#define _GNU_SOURCE
+
+/* We need the latest siginfo from the kernel repo. */
+#include <sys/types.h>
+#include <asm/siginfo.h>
+#define __have_siginfo_t 1
+#define __have_sigval_t 1
+#define __have_sigevent_t 1
+#define __siginfo_t_defined
+#define __sigval_t_defined
+#define __sigevent_t_defined
+#define _BITS_SIGINFO_CONSTS_H 1
+#define _BITS_SIGEVENT_CONSTS_H 1
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <linux/hw_breakpoint.h>
+#include <linux/perf_event.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+#define NUM_THREADS 5
+
+/* Data shared between test body, threads, and signal handler. */
+static struct {
+	int tids_want_signal;		/* Which threads still want a signal. */
+	int signal_count;		/* Sanity check number of signals received. */
+	volatile int iterate_on;	/* Variable to set breakpoint on. */
+	siginfo_t first_siginfo;	/* First observed siginfo_t. */
+} ctx;
+
+/* Unique value to check si_perf_data is correctly set from perf_event_attr::sig_data. */
+#define TEST_SIG_DATA(addr, id) (~(unsigned long)(addr) + id)
+
+static struct perf_event_attr make_event_attr(bool enabled, volatile void *addr,
+					      unsigned long id)
+{
+	struct perf_event_attr attr = {
+		.type		= PERF_TYPE_BREAKPOINT,
+		.size		= sizeof(attr),
+		.sample_period	= 1,
+		.disabled	= !enabled,
+		.bp_addr	= (unsigned long)addr,
+		.bp_type	= HW_BREAKPOINT_RW,
+		.bp_len		= HW_BREAKPOINT_LEN_1,
+		.inherit	= 1, /* Children inherit events ... */
+		.inherit_thread = 1, /* ... but only cloned with CLONE_THREAD. */
+		.remove_on_exec = 1, /* Required by sigtrap. */
+		.sigtrap	= 1, /* Request synchronous SIGTRAP on event. */
+		.sig_data	= TEST_SIG_DATA(addr, id),
+		.exclude_kernel = 1, /* To allow */
+		.exclude_hv     = 1, /* running as !root */
+	};
+	return attr;
+}
+
+static void sigtrap_handler(int signum, siginfo_t *info, void *ucontext)
+{
+	if (info->si_code != TRAP_PERF) {
+		fprintf(stderr, "%s: unexpected si_code %d\n", __func__, info->si_code);
+		return;
+	}
+
+	/*
+	 * The data in siginfo_t we're interested in should all be the same
+	 * across threads.
+	 */
+	if (!__atomic_fetch_add(&ctx.signal_count, 1, __ATOMIC_RELAXED))
+		ctx.first_siginfo = *info;
+	__atomic_fetch_sub(&ctx.tids_want_signal, syscall(__NR_gettid), __ATOMIC_RELAXED);
+}
+
+static void *test_thread(void *arg)
+{
+	pthread_barrier_t *barrier = (pthread_barrier_t *)arg;
+	pid_t tid = syscall(__NR_gettid);
+	int iter;
+	int i;
+
+	pthread_barrier_wait(barrier);
+
+	__atomic_fetch_add(&ctx.tids_want_signal, tid, __ATOMIC_RELAXED);
+	iter = ctx.iterate_on; /* read */
+	if (iter >= 0) {
+		for (i = 0; i < iter - 1; i++) {
+			__atomic_fetch_add(&ctx.tids_want_signal, tid, __ATOMIC_RELAXED);
+			ctx.iterate_on = iter; /* idempotent write */
+		}
+	} else {
+		while (ctx.iterate_on);
+	}
+
+	return NULL;
+}
+
+FIXTURE(sigtrap_threads)
+{
+	struct sigaction oldact;
+	pthread_t threads[NUM_THREADS];
+	pthread_barrier_t barrier;
+	int fd;
+};
+
+FIXTURE_SETUP(sigtrap_threads)
+{
+	struct perf_event_attr attr = make_event_attr(false, &ctx.iterate_on, 0);
+	struct sigaction action = {};
+	int i;
+
+	memset(&ctx, 0, sizeof(ctx));
+
+	/* Initialize sigtrap handler. */
+	action.sa_flags = SA_SIGINFO | SA_NODEFER;
+	action.sa_sigaction = sigtrap_handler;
+	sigemptyset(&action.sa_mask);
+	ASSERT_EQ(sigaction(SIGTRAP, &action, &self->oldact), 0);
+
+	/* Initialize perf event. */
+	self->fd = syscall(__NR_perf_event_open, &attr, 0, -1, -1, PERF_FLAG_FD_CLOEXEC);
+	ASSERT_NE(self->fd, -1);
+
+	/* Spawn threads inheriting perf event. */
+	pthread_barrier_init(&self->barrier, NULL, NUM_THREADS + 1);
+	for (i = 0; i < NUM_THREADS; i++)
+		ASSERT_EQ(pthread_create(&self->threads[i], NULL, test_thread, &self->barrier), 0);
+}
+
+FIXTURE_TEARDOWN(sigtrap_threads)
+{
+	pthread_barrier_destroy(&self->barrier);
+	close(self->fd);
+	sigaction(SIGTRAP, &self->oldact, NULL);
+}
+
+static void run_test_threads(struct __test_metadata *_metadata,
+			     FIXTURE_DATA(sigtrap_threads) *self)
+{
+	int i;
+
+	pthread_barrier_wait(&self->barrier);
+	for (i = 0; i < NUM_THREADS; i++)
+		ASSERT_EQ(pthread_join(self->threads[i], NULL), 0);
+}
+
+TEST_F(sigtrap_threads, remain_disabled)
+{
+	run_test_threads(_metadata, self);
+	EXPECT_EQ(ctx.signal_count, 0);
+	EXPECT_NE(ctx.tids_want_signal, 0);
+}
+
+TEST_F(sigtrap_threads, enable_event)
+{
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	run_test_threads(_metadata, self);
+
+	EXPECT_EQ(ctx.signal_count, NUM_THREADS);
+	EXPECT_EQ(ctx.tids_want_signal, 0);
+	EXPECT_EQ(ctx.first_siginfo.si_addr, &ctx.iterate_on);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_type, PERF_TYPE_BREAKPOINT);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_data, TEST_SIG_DATA(&ctx.iterate_on, 0));
+
+	/* Check enabled for parent. */
+	ctx.iterate_on = 0;
+	EXPECT_EQ(ctx.signal_count, NUM_THREADS + 1);
+}
+
+/* Test that modification propagates to all inherited events. */
+TEST_F(sigtrap_threads, modify_and_enable_event)
+{
+	struct perf_event_attr new_attr = make_event_attr(true, &ctx.iterate_on, 42);
+
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_MODIFY_ATTRIBUTES, &new_attr), 0);
+	run_test_threads(_metadata, self);
+
+	EXPECT_EQ(ctx.signal_count, NUM_THREADS);
+	EXPECT_EQ(ctx.tids_want_signal, 0);
+	EXPECT_EQ(ctx.first_siginfo.si_addr, &ctx.iterate_on);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_type, PERF_TYPE_BREAKPOINT);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_data, TEST_SIG_DATA(&ctx.iterate_on, 42));
+
+	/* Check enabled for parent. */
+	ctx.iterate_on = 0;
+	EXPECT_EQ(ctx.signal_count, NUM_THREADS + 1);
+}
+
+/* Stress test event + signal handling. */
+TEST_F(sigtrap_threads, signal_stress)
+{
+	ctx.iterate_on = 3000;
+
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	run_test_threads(_metadata, self);
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_DISABLE, 0), 0);
+
+	EXPECT_EQ(ctx.signal_count, NUM_THREADS * ctx.iterate_on);
+	EXPECT_EQ(ctx.tids_want_signal, 0);
+	EXPECT_EQ(ctx.first_siginfo.si_addr, &ctx.iterate_on);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_type, PERF_TYPE_BREAKPOINT);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_data, TEST_SIG_DATA(&ctx.iterate_on, 0));
+}
+
+TEST_F(sigtrap_threads, signal_stress_with_disable)
+{
+	const int target_count = NUM_THREADS * 3000;
+	int i;
+
+	ctx.iterate_on = -1;
+
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	pthread_barrier_wait(&self->barrier);
+	while (__atomic_load_n(&ctx.signal_count, __ATOMIC_RELAXED) < target_count) {
+		EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_DISABLE, 0), 0);
+		EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_ENABLE, 0), 0);
+	}
+	ctx.iterate_on = 0;
+	for (i = 0; i < NUM_THREADS; i++)
+		ASSERT_EQ(pthread_join(self->threads[i], NULL), 0);
+	EXPECT_EQ(ioctl(self->fd, PERF_EVENT_IOC_DISABLE, 0), 0);
+
+	EXPECT_EQ(ctx.first_siginfo.si_addr, &ctx.iterate_on);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_type, PERF_TYPE_BREAKPOINT);
+	EXPECT_EQ(ctx.first_siginfo.si_perf_data, TEST_SIG_DATA(&ctx.iterate_on, 0));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/perf_events/watermark_signal.c b/tools/testing/selftests/perf_events/watermark_signal.c
new file mode 100644
index 000000000000..0f64b9b17081
--- /dev/null
+++ b/tools/testing/selftests/perf_events/watermark_signal.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/perf_event.h>
+#include <stddef.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/syscall.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+static int sigio_count;
+
+static void handle_sigio(int signum __maybe_unused,
+			 siginfo_t *oh __maybe_unused,
+			 void *uc __maybe_unused)
+{
+	++sigio_count;
+}
+
+static void do_child(void)
+{
+	raise(SIGSTOP);
+
+	for (int i = 0; i < 20; ++i)
+		sleep(1);
+
+	raise(SIGSTOP);
+
+	exit(0);
+}
+
+TEST(watermark_signal)
+{
+	struct perf_event_attr attr;
+	struct perf_event_mmap_page *p = NULL;
+	struct sigaction previous_sigio, sigio = { 0 };
+	pid_t child = -1;
+	int child_status;
+	int fd = -1;
+	long page_size = sysconf(_SC_PAGE_SIZE);
+
+	sigio.sa_sigaction = handle_sigio;
+	EXPECT_EQ(sigaction(SIGIO, &sigio, &previous_sigio), 0);
+
+	memset(&attr, 0, sizeof(attr));
+	attr.size = sizeof(attr);
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_DUMMY;
+	attr.sample_period = 1;
+	attr.disabled = 1;
+	attr.watermark = 1;
+	attr.context_switch = 1;
+	attr.wakeup_watermark = 1;
+
+	child = fork();
+	EXPECT_GE(child, 0);
+	if (child == 0)
+		do_child();
+	else if (child < 0) {
+		perror("fork()");
+		goto cleanup;
+	}
+
+	if (waitpid(child, &child_status, WSTOPPED) != child ||
+	    !(WIFSTOPPED(child_status) && WSTOPSIG(child_status) == SIGSTOP)) {
+		fprintf(stderr,
+			"failed to synchronize with child errno=%d status=%x\n",
+			errno,
+			child_status);
+		goto cleanup;
+	}
+
+	fd = syscall(__NR_perf_event_open, &attr, child, -1, -1,
+		     PERF_FLAG_FD_CLOEXEC);
+	if (fd < 0) {
+		fprintf(stderr, "failed opening event %llx\n", attr.config);
+		goto cleanup;
+	}
+
+	if (fcntl(fd, F_SETFL, FASYNC)) {
+		perror("F_SETFL FASYNC");
+		goto cleanup;
+	}
+
+	if (fcntl(fd, F_SETOWN, getpid())) {
+		perror("F_SETOWN getpid()");
+		goto cleanup;
+	}
+
+	if (fcntl(fd, F_SETSIG, SIGIO)) {
+		perror("F_SETSIG SIGIO");
+		goto cleanup;
+	}
+
+	p = mmap(NULL, 2 * page_size, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	if (p == NULL) {
+		perror("mmap");
+		goto cleanup;
+	}
+
+	if (ioctl(fd, PERF_EVENT_IOC_ENABLE, 0)) {
+		perror("PERF_EVENT_IOC_ENABLE");
+		goto cleanup;
+	}
+
+	if (kill(child, SIGCONT) < 0) {
+		perror("SIGCONT");
+		goto cleanup;
+	}
+
+	if (waitpid(child, &child_status, WSTOPPED) != -1 || errno != EINTR)
+		fprintf(stderr,
+			"expected SIGIO to terminate wait errno=%d status=%x\n%d",
+			errno,
+			child_status,
+			sigio_count);
+
+	EXPECT_GE(sigio_count, 1);
+
+cleanup:
+	if (p != NULL)
+		munmap(p, 2 * page_size);
+
+	if (fd >= 0)
+		close(fd);
+
+	if (child > 0) {
+		kill(child, SIGKILL);
+		waitpid(child, NULL, 0);
+	}
+
+	sigaction(SIGIO, &previous_sigio, NULL);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pid_namespace/.gitignore b/tools/testing/selftests/pid_namespace/.gitignore
new file mode 100644
index 000000000000..5118f0f3edf4
--- /dev/null
+++ b/tools/testing/selftests/pid_namespace/.gitignore
@@ -0,0 +1,2 @@
+pid_max
+regression_enomem
diff --git a/tools/testing/selftests/pid_namespace/Makefile b/tools/testing/selftests/pid_namespace/Makefile
new file mode 100644
index 000000000000..b972f55d07ae
--- /dev/null
+++ b/tools/testing/selftests/pid_namespace/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -g $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS = regression_enomem pid_max
+
+LOCAL_HDRS += $(selfdir)/pidfd/pidfd.h
+
+include ../lib.mk
diff --git a/tools/testing/selftests/pid_namespace/config b/tools/testing/selftests/pid_namespace/config
new file mode 100644
index 000000000000..26cdb27e7dbb
--- /dev/null
+++ b/tools/testing/selftests/pid_namespace/config
@@ -0,0 +1,2 @@
+CONFIG_PID_NS=y
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/pid_namespace/pid_max.c b/tools/testing/selftests/pid_namespace/pid_max.c
new file mode 100644
index 000000000000..c9519e7385b6
--- /dev/null
+++ b/tools/testing/selftests/pid_namespace/pid_max.c
@@ -0,0 +1,359 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+
+#include "kselftest_harness.h"
+#include "../pidfd/pidfd.h"
+
+#define __STACK_SIZE (8 * 1024 * 1024)
+static pid_t do_clone(int (*fn)(void *), void *arg, int flags)
+{
+	char *stack;
+	pid_t ret;
+
+	stack = malloc(__STACK_SIZE);
+	if (!stack)
+		return -ENOMEM;
+
+#ifdef __ia64__
+	ret = __clone2(fn, stack, __STACK_SIZE, flags | SIGCHLD, arg);
+#else
+	ret = clone(fn, stack + __STACK_SIZE, flags | SIGCHLD, arg);
+#endif
+	free(stack);
+	return ret;
+}
+
+static int pid_max_cb(void *data)
+{
+	int fd, ret;
+	pid_t pid;
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to make rootfs private mount\n");
+		return -1;
+	}
+
+	umount2("/proc", MNT_DETACH);
+
+	ret = mount("proc", "/proc", "proc", 0, NULL);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to mount proc\n");
+		return -1;
+	}
+
+	fd = open("/proc/sys/kernel/pid_max", O_RDWR | O_CLOEXEC | O_NOCTTY);
+	if (fd < 0) {
+		fprintf(stderr, "%m - Failed to open pid_max\n");
+		return -1;
+	}
+
+	ret = write(fd, "500", sizeof("500") - 1);
+	if (ret < 0) {
+		fprintf(stderr, "%m - Failed to write pid_max\n");
+		return -1;
+	}
+
+	for (int i = 0; i < 501; i++) {
+		pid = fork();
+		if (pid == 0)
+			exit(EXIT_SUCCESS);
+		wait_for_pid(pid);
+		if (pid > 500) {
+			fprintf(stderr, "Managed to create pid number beyond limit\n");
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int pid_max_nested_inner(void *data)
+{
+	int fret = -1;
+	pid_t pids[2];
+	int fd, i, ret;
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to make rootfs private mount\n");
+		return fret;
+	}
+
+	umount2("/proc", MNT_DETACH);
+
+	ret = mount("proc", "/proc", "proc", 0, NULL);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to mount proc\n");
+		return fret;
+	}
+
+	fd = open("/proc/sys/kernel/pid_max", O_RDWR | O_CLOEXEC | O_NOCTTY);
+	if (fd < 0) {
+		fprintf(stderr, "%m - Failed to open pid_max\n");
+		return fret;
+	}
+
+	ret = write(fd, "500", sizeof("500") - 1);
+	close(fd);
+	if (ret < 0) {
+		fprintf(stderr, "%m - Failed to write pid_max\n");
+		return fret;
+	}
+
+	pids[0] = fork();
+	if (pids[0] < 0) {
+		fprintf(stderr, "Failed to create first new process\n");
+		return fret;
+	}
+
+	if (pids[0] == 0)
+		exit(EXIT_SUCCESS);
+
+	pids[1] = fork();
+	wait_for_pid(pids[0]);
+	if (pids[1] >= 0) {
+		if (pids[1] == 0)
+			exit(EXIT_SUCCESS);
+		wait_for_pid(pids[1]);
+
+		fprintf(stderr, "Managed to create process even though ancestor pid namespace had a limit\n");
+		return fret;
+	}
+
+	/* Now make sure that we wrap pids at 400. */
+	for (i = 0; i < 510; i++) {
+		pid_t pid;
+
+		pid = fork();
+		if (pid < 0)
+			return fret;
+
+		if (pid == 0)
+			exit(EXIT_SUCCESS);
+
+		wait_for_pid(pid);
+		if (pid >= 500) {
+			fprintf(stderr, "Managed to create process with pid %d beyond configured limit\n", pid);
+			return fret;
+		}
+	}
+
+	return 0;
+}
+
+static int pid_max_nested_outer(void *data)
+{
+	int fret = -1, nr_procs = 400;
+	pid_t pids[1000];
+	int fd, i, ret;
+	pid_t pid;
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to make rootfs private mount\n");
+		return fret;
+	}
+
+	umount2("/proc", MNT_DETACH);
+
+	ret = mount("proc", "/proc", "proc", 0, NULL);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to mount proc\n");
+		return fret;
+	}
+
+	fd = open("/proc/sys/kernel/pid_max", O_RDWR | O_CLOEXEC | O_NOCTTY);
+	if (fd < 0) {
+		fprintf(stderr, "%m - Failed to open pid_max\n");
+		return fret;
+	}
+
+	ret = write(fd, "400", sizeof("400") - 1);
+	close(fd);
+	if (ret < 0) {
+		fprintf(stderr, "%m - Failed to write pid_max\n");
+		return fret;
+	}
+
+	/*
+	 * Create 397 processes. This leaves room for do_clone() (398) and
+	 * one more 399. So creating another process needs to fail.
+	 */
+	for (nr_procs = 0; nr_procs < 396; nr_procs++) {
+		pid = fork();
+		if (pid < 0)
+			goto reap;
+
+		if (pid == 0)
+			exit(EXIT_SUCCESS);
+
+		pids[nr_procs] = pid;
+	}
+
+	pid = do_clone(pid_max_nested_inner, NULL, CLONE_NEWPID | CLONE_NEWNS);
+	if (pid < 0) {
+		fprintf(stderr, "%m - Failed to clone nested pidns\n");
+		goto reap;
+	}
+
+	if (wait_for_pid(pid)) {
+		fprintf(stderr, "%m - Nested pid_max failed\n");
+		goto reap;
+	}
+
+	fret = 0;
+
+reap:
+	for (int i = 0; i < nr_procs; i++)
+		wait_for_pid(pids[i]);
+
+	return fret;
+}
+
+static int pid_max_nested_limit_inner(void *data)
+{
+	int fret = -1, nr_procs = 400;
+	int fd, ret;
+	pid_t pid;
+	pid_t pids[1000];
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to make rootfs private mount\n");
+		return fret;
+	}
+
+	umount2("/proc", MNT_DETACH);
+
+	ret = mount("proc", "/proc", "proc", 0, NULL);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to mount proc\n");
+		return fret;
+	}
+
+	fd = open("/proc/sys/kernel/pid_max", O_RDWR | O_CLOEXEC | O_NOCTTY);
+	if (fd < 0) {
+		fprintf(stderr, "%m - Failed to open pid_max\n");
+		return fret;
+	}
+
+	ret = write(fd, "500", sizeof("500") - 1);
+	close(fd);
+	if (ret < 0) {
+		fprintf(stderr, "%m - Failed to write pid_max\n");
+		return fret;
+	}
+
+	for (nr_procs = 0; nr_procs < 500; nr_procs++) {
+		pid = fork();
+		if (pid < 0)
+			break;
+
+		if (pid == 0)
+			exit(EXIT_SUCCESS);
+
+		pids[nr_procs] = pid;
+	}
+
+	if (nr_procs >= 400) {
+		fprintf(stderr, "Managed to create processes beyond the configured outer limit\n");
+		goto reap;
+	}
+
+	fret = 0;
+
+reap:
+	for (int i = 0; i < nr_procs; i++)
+		wait_for_pid(pids[i]);
+
+	return fret;
+}
+
+static int pid_max_nested_limit_outer(void *data)
+{
+	int fd, ret;
+	pid_t pid;
+
+	ret = mount("", "/", NULL, MS_PRIVATE | MS_REC, 0);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to make rootfs private mount\n");
+		return -1;
+	}
+
+	umount2("/proc", MNT_DETACH);
+
+	ret = mount("proc", "/proc", "proc", 0, NULL);
+	if (ret) {
+		fprintf(stderr, "%m - Failed to mount proc\n");
+		return -1;
+	}
+
+	fd = open("/proc/sys/kernel/pid_max", O_RDWR | O_CLOEXEC | O_NOCTTY);
+	if (fd < 0) {
+		fprintf(stderr, "%m - Failed to open pid_max\n");
+		return -1;
+	}
+
+	ret = write(fd, "400", sizeof("400") - 1);
+	close(fd);
+	if (ret < 0) {
+		fprintf(stderr, "%m - Failed to write pid_max\n");
+		return -1;
+	}
+
+	pid = do_clone(pid_max_nested_limit_inner, NULL, CLONE_NEWPID | CLONE_NEWNS);
+	if (pid < 0) {
+		fprintf(stderr, "%m - Failed to clone nested pidns\n");
+		return -1;
+	}
+
+	if (wait_for_pid(pid)) {
+		fprintf(stderr, "%m - Nested pid_max failed\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+TEST(pid_max_simple)
+{
+	pid_t pid;
+
+
+	pid = do_clone(pid_max_cb, NULL, CLONE_NEWPID | CLONE_NEWNS);
+	ASSERT_GT(pid, 0);
+	ASSERT_EQ(0, wait_for_pid(pid));
+}
+
+TEST(pid_max_nested_limit)
+{
+	pid_t pid;
+
+	pid = do_clone(pid_max_nested_limit_outer, NULL, CLONE_NEWPID | CLONE_NEWNS);
+	ASSERT_GT(pid, 0);
+	ASSERT_EQ(0, wait_for_pid(pid));
+}
+
+TEST(pid_max_nested)
+{
+	pid_t pid;
+
+	pid = do_clone(pid_max_nested_outer, NULL, CLONE_NEWPID | CLONE_NEWNS);
+	ASSERT_GT(pid, 0);
+	ASSERT_EQ(0, wait_for_pid(pid));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pid_namespace/regression_enomem.c b/tools/testing/selftests/pid_namespace/regression_enomem.c
new file mode 100644
index 000000000000..059e7ec5b4fd
--- /dev/null
+++ b/tools/testing/selftests/pid_namespace/regression_enomem.c
@@ -0,0 +1,44 @@
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/wait.h>
+
+#include "kselftest_harness.h"
+#include "../pidfd/pidfd.h"
+
+/*
+ * Regression test for:
+ * 35f71bc0a09a ("fork: report pid reservation failure properly")
+ * b26ebfe12f34 ("pid: Fix error return value in some cases")
+ */
+TEST(regression_enomem)
+{
+	pid_t pid;
+
+	if (geteuid())
+		EXPECT_EQ(0, unshare(CLONE_NEWUSER));
+
+	EXPECT_EQ(0, unshare(CLONE_NEWPID));
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		exit(EXIT_SUCCESS);
+
+	EXPECT_EQ(0, wait_for_pid(pid));
+
+	pid = fork();
+	ASSERT_LT(pid, 0);
+	ASSERT_EQ(errno, ENOMEM);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/.gitignore b/tools/testing/selftests/pidfd/.gitignore
new file mode 100644
index 000000000000..144e7ff65d6a
--- /dev/null
+++ b/tools/testing/selftests/pidfd/.gitignore
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+pidfd_open_test
+pidfd_poll_test
+pidfd_test
+pidfd_wait
+pidfd_fdinfo_test
+pidfd_getfd_test
+pidfd_setns_test
+pidfd_file_handle_test
+pidfd_bind_mount
+pidfd_info_test
+pidfd_exec_helper
+pidfd_xattr_test
+pidfd_setattr_test
diff --git a/tools/testing/selftests/pidfd/Makefile b/tools/testing/selftests/pidfd/Makefile
new file mode 100644
index 000000000000..764a8f9ecefa
--- /dev/null
+++ b/tools/testing/selftests/pidfd/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -g $(KHDR_INCLUDES) $(TOOLS_INCLUDES) -pthread -Wall
+
+TEST_GEN_PROGS := pidfd_test pidfd_fdinfo_test pidfd_open_test \
+	pidfd_poll_test pidfd_wait pidfd_getfd_test pidfd_setns_test \
+	pidfd_file_handle_test pidfd_bind_mount pidfd_info_test \
+	pidfd_xattr_test pidfd_setattr_test
+
+TEST_GEN_PROGS_EXTENDED := pidfd_exec_helper
+
+include ../lib.mk
+
diff --git a/tools/testing/selftests/pidfd/config b/tools/testing/selftests/pidfd/config
new file mode 100644
index 000000000000..cf7cc0ce0248
--- /dev/null
+++ b/tools/testing/selftests/pidfd/config
@@ -0,0 +1,8 @@
+CONFIG_UTS_NS=y
+CONFIG_IPC_NS=y
+CONFIG_USER_NS=y
+CONFIG_PID_NS=y
+CONFIG_NET_NS=y
+CONFIG_TIME_NS=y
+CONFIG_CGROUPS=y
+CONFIG_CHECKPOINT_RESTORE=y
diff --git a/tools/testing/selftests/pidfd/pidfd.h b/tools/testing/selftests/pidfd/pidfd.h
new file mode 100644
index 000000000000..9085c1a3c005
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd.h
@@ -0,0 +1,310 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef __PIDFD_H
+#define __PIDFD_H
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+/*
+ * Remove the userspace definitions of the following preprocessor symbols
+ * to avoid duplicate-definition warnings from the subsequent in-kernel
+ * definitions.
+ */
+#undef SCHED_NORMAL
+#undef SCHED_FLAG_KEEP_ALL
+#undef SCHED_FLAG_UTIL_CLAMP
+
+#include "kselftest.h"
+#include "../clone3/clone3_selftests.h"
+
+#ifndef FD_PIDFS_ROOT
+#define FD_PIDFS_ROOT -10002
+#endif
+
+#ifndef P_PIDFD
+#define P_PIDFD 3
+#endif
+
+#ifndef CLONE_NEWTIME
+#define CLONE_NEWTIME 0x00000080
+#endif
+
+#ifndef CLONE_PIDFD
+#define CLONE_PIDFD 0x00001000
+#endif
+
+#ifndef __NR_pidfd_open
+#define __NR_pidfd_open 434
+#endif
+
+#ifndef __NR_pidfd_send_signal
+#define __NR_pidfd_send_signal 424
+#endif
+
+#ifndef __NR_clone3
+#define __NR_clone3 435
+#endif
+
+#ifndef __NR_pidfd_getfd
+#define __NR_pidfd_getfd 438
+#endif
+
+#ifndef PIDFD_NONBLOCK
+#define PIDFD_NONBLOCK O_NONBLOCK
+#endif
+
+#ifndef PIDFD_SELF_THREAD
+#define PIDFD_SELF_THREAD		-10000 /* Current thread. */
+#endif
+
+#ifndef PIDFD_SELF_THREAD_GROUP
+#define PIDFD_SELF_THREAD_GROUP		-10001 /* Current thread group leader. */
+#endif
+
+#ifndef PIDFD_SELF
+#define PIDFD_SELF		PIDFD_SELF_THREAD
+#endif
+
+#ifndef PIDFD_SELF_PROCESS
+#define PIDFD_SELF_PROCESS	PIDFD_SELF_THREAD_GROUP
+#endif
+
+#ifndef PIDFS_IOCTL_MAGIC
+#define PIDFS_IOCTL_MAGIC 0xFF
+#endif
+
+#ifndef PIDFD_GET_CGROUP_NAMESPACE
+#define PIDFD_GET_CGROUP_NAMESPACE            _IO(PIDFS_IOCTL_MAGIC, 1)
+#endif
+
+#ifndef PIDFD_GET_IPC_NAMESPACE
+#define PIDFD_GET_IPC_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 2)
+#endif
+
+#ifndef PIDFD_GET_MNT_NAMESPACE
+#define PIDFD_GET_MNT_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 3)
+#endif
+
+#ifndef PIDFD_GET_NET_NAMESPACE
+#define PIDFD_GET_NET_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 4)
+#endif
+
+#ifndef PIDFD_GET_PID_NAMESPACE
+#define PIDFD_GET_PID_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 5)
+#endif
+
+#ifndef PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE
+#define PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE  _IO(PIDFS_IOCTL_MAGIC, 6)
+#endif
+
+#ifndef PIDFD_GET_TIME_NAMESPACE
+#define PIDFD_GET_TIME_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 7)
+#endif
+
+#ifndef PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE
+#define PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE _IO(PIDFS_IOCTL_MAGIC, 8)
+#endif
+
+#ifndef PIDFD_GET_USER_NAMESPACE
+#define PIDFD_GET_USER_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 9)
+#endif
+
+#ifndef PIDFD_GET_UTS_NAMESPACE
+#define PIDFD_GET_UTS_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 10)
+#endif
+
+#ifndef PIDFD_GET_INFO
+#define PIDFD_GET_INFO			      _IOWR(PIDFS_IOCTL_MAGIC, 11, struct pidfd_info)
+#endif
+
+#ifndef PIDFD_INFO_PID
+#define PIDFD_INFO_PID			(1UL << 0) /* Always returned, even if not requested */
+#endif
+
+#ifndef PIDFD_INFO_CREDS
+#define PIDFD_INFO_CREDS		(1UL << 1) /* Always returned, even if not requested */
+#endif
+
+#ifndef PIDFD_INFO_CGROUPID
+#define PIDFD_INFO_CGROUPID		(1UL << 2) /* Always returned if available, even if not requested */
+#endif
+
+#ifndef PIDFD_INFO_EXIT
+#define PIDFD_INFO_EXIT			(1UL << 3) /* Always returned if available, even if not requested */
+#endif
+
+#ifndef PIDFD_INFO_COREDUMP
+#define PIDFD_INFO_COREDUMP	(1UL << 4)
+#endif
+
+#ifndef PIDFD_INFO_SUPPORTED_MASK
+#define PIDFD_INFO_SUPPORTED_MASK	(1UL << 5)
+#endif
+
+#ifndef PIDFD_INFO_COREDUMP_SIGNAL
+#define PIDFD_INFO_COREDUMP_SIGNAL	(1UL << 6)
+#endif
+
+#ifndef PIDFD_COREDUMPED
+#define PIDFD_COREDUMPED	(1U << 0) /* Did crash and... */
+#endif
+
+#ifndef PIDFD_COREDUMP_SKIP
+#define PIDFD_COREDUMP_SKIP	(1U << 1) /* coredumping generation was skipped. */
+#endif
+
+#ifndef PIDFD_COREDUMP_USER
+#define PIDFD_COREDUMP_USER	(1U << 2) /* coredump was done as the user. */
+#endif
+
+#ifndef PIDFD_COREDUMP_ROOT
+#define PIDFD_COREDUMP_ROOT	(1U << 3) /* coredump was done as root. */
+#endif
+
+#ifndef PIDFD_THREAD
+#define PIDFD_THREAD O_EXCL
+#endif
+
+struct pidfd_info {
+	__u64 mask;
+	__u64 cgroupid;
+	__u32 pid;
+	__u32 tgid;
+	__u32 ppid;
+	__u32 ruid;
+	__u32 rgid;
+	__u32 euid;
+	__u32 egid;
+	__u32 suid;
+	__u32 sgid;
+	__u32 fsuid;
+	__u32 fsgid;
+	__s32 exit_code;
+	struct {
+		__u32 coredump_mask;
+		__u32 coredump_signal;
+	};
+	__u64 supported_mask;
+};
+
+/*
+ * The kernel reserves 300 pids via RESERVED_PIDS in kernel/pid.c
+ * That means, when it wraps around any pid < 300 will be skipped.
+ * So we need to use a pid > 300 in order to test recycling.
+ */
+#define PID_RECYCLE 1000
+
+/*
+ * Define a few custom error codes for the child process to clearly indicate
+ * what is happening. This way we can tell the difference between a system
+ * error, a test error, etc.
+ */
+#define PIDFD_PASS 0
+#define PIDFD_FAIL 1
+#define PIDFD_ERROR 2
+#define PIDFD_SKIP 3
+#define PIDFD_XFAIL 4
+
+static inline int sys_waitid(int which, pid_t pid, siginfo_t *info, int options)
+{
+	return syscall(__NR_waitid, which, pid, info, options, NULL);
+}
+
+static inline int wait_for_pid(pid_t pid)
+{
+	int status, ret;
+
+again:
+	ret = waitpid(pid, &status, 0);
+	if (ret == -1) {
+		if (errno == EINTR)
+			goto again;
+
+		ksft_print_msg("waitpid returned -1, errno=%d\n", errno);
+		return -1;
+	}
+
+	if (!WIFEXITED(status)) {
+		ksft_print_msg(
+		       "waitpid !WIFEXITED, WIFSIGNALED=%d, WTERMSIG=%d\n",
+		       WIFSIGNALED(status), WTERMSIG(status));
+		return -1;
+	}
+
+	ret = WEXITSTATUS(status);
+	return ret;
+}
+
+static inline int sys_pidfd_open(pid_t pid, unsigned int flags)
+{
+	return syscall(__NR_pidfd_open, pid, flags);
+}
+
+static inline int sys_pidfd_send_signal(int pidfd, int sig, siginfo_t *info,
+					unsigned int flags)
+{
+	return syscall(__NR_pidfd_send_signal, pidfd, sig, info, flags);
+}
+
+static inline int sys_pidfd_getfd(int pidfd, int fd, int flags)
+{
+	return syscall(__NR_pidfd_getfd, pidfd, fd, flags);
+}
+
+static inline int sys_memfd_create(const char *name, unsigned int flags)
+{
+	return syscall(__NR_memfd_create, name, flags);
+}
+
+static inline pid_t create_child(int *pidfd, unsigned flags)
+{
+	struct __clone_args args = {
+		.flags		= CLONE_PIDFD | flags,
+		.exit_signal	= SIGCHLD,
+		.pidfd		= ptr_to_u64(pidfd),
+	};
+
+	return sys_clone3(&args, sizeof(struct __clone_args));
+}
+
+static inline ssize_t read_nointr(int fd, void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = read(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static inline ssize_t write_nointr(int fd, const void *buf, size_t count)
+{
+	ssize_t ret;
+
+	do {
+		ret = write(fd, buf, count);
+	} while (ret < 0 && errno == EINTR);
+
+	return ret;
+}
+
+static inline int sys_execveat(int dirfd, const char *pathname,
+			       char *const argv[], char *const envp[],
+			       int flags)
+{
+        return syscall(__NR_execveat, dirfd, pathname, argv, envp, flags);
+}
+
+#endif /* __PIDFD_H */
diff --git a/tools/testing/selftests/pidfd/pidfd_bind_mount.c b/tools/testing/selftests/pidfd/pidfd_bind_mount.c
new file mode 100644
index 000000000000..1fdf49939524
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_bind_mount.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+// Copyright (c) 2024 Christian Brauner <brauner@kernel.org>
+
+#define _GNU_SOURCE
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <string.h>
+#include <linux/fs.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/mount.h>
+#include <unistd.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+#include "../filesystems/wrappers.h"
+
+FIXTURE(pidfd_bind_mount) {
+	char template[PATH_MAX];
+	int fd_tmp;
+	int pidfd;
+	struct stat st1;
+	struct stat st2;
+	__u32 gen1;
+	__u32 gen2;
+	bool must_unmount;
+};
+
+FIXTURE_SETUP(pidfd_bind_mount)
+{
+	self->fd_tmp = -EBADF;
+	self->must_unmount = false;
+	ASSERT_EQ(unshare(CLONE_NEWNS), 0);
+	ASSERT_LE(snprintf(self->template, PATH_MAX, "%s", P_tmpdir "/pidfd_bind_mount_XXXXXX"), PATH_MAX);
+	self->fd_tmp = mkstemp(self->template);
+	ASSERT_GE(self->fd_tmp, 0);
+	self->pidfd = sys_pidfd_open(getpid(), 0);
+	ASSERT_GE(self->pidfd, 0);
+	ASSERT_GE(fstat(self->pidfd, &self->st1), 0);
+	ASSERT_EQ(ioctl(self->pidfd, FS_IOC_GETVERSION, &self->gen1), 0);
+}
+
+FIXTURE_TEARDOWN(pidfd_bind_mount)
+{
+	ASSERT_EQ(close(self->fd_tmp), 0);
+	if (self->must_unmount)
+		ASSERT_EQ(umount2(self->template, 0), 0);
+	ASSERT_EQ(unlink(self->template), 0);
+}
+
+/*
+ * Test that a detached mount can be created for a pidfd and then
+ * attached to the filesystem hierarchy.
+ */
+TEST_F(pidfd_bind_mount, bind_mount)
+{
+	int fd_tree;
+
+	fd_tree = sys_open_tree(self->pidfd, "", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC | AT_EMPTY_PATH);
+	ASSERT_GE(fd_tree, 0);
+
+	ASSERT_EQ(move_mount(fd_tree, "", self->fd_tmp, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+	self->must_unmount = true;
+
+	ASSERT_EQ(close(fd_tree), 0);
+}
+
+/* Test that a pidfd can be reopened through procfs. */
+TEST_F(pidfd_bind_mount, reopen)
+{
+	int pidfd;
+	char proc_path[PATH_MAX];
+
+	sprintf(proc_path, "/proc/self/fd/%d", self->pidfd);
+	pidfd = open(proc_path, O_RDONLY | O_NOCTTY | O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_GE(fstat(self->pidfd, &self->st2), 0);
+	ASSERT_EQ(ioctl(self->pidfd, FS_IOC_GETVERSION, &self->gen2), 0);
+
+	ASSERT_TRUE(self->st1.st_dev == self->st2.st_dev && self->st1.st_ino == self->st2.st_ino);
+	ASSERT_TRUE(self->gen1 == self->gen2);
+
+	ASSERT_EQ(close(pidfd), 0);
+}
+
+/*
+ * Test that a detached mount can be created for a pidfd and then
+ * attached to the filesystem hierarchy and reopened.
+ */
+TEST_F(pidfd_bind_mount, bind_mount_reopen)
+{
+	int fd_tree, fd_pidfd_mnt;
+
+	fd_tree = sys_open_tree(self->pidfd, "", OPEN_TREE_CLONE | OPEN_TREE_CLOEXEC | AT_EMPTY_PATH);
+	ASSERT_GE(fd_tree, 0);
+
+	ASSERT_EQ(move_mount(fd_tree, "", self->fd_tmp, "", MOVE_MOUNT_F_EMPTY_PATH | MOVE_MOUNT_T_EMPTY_PATH), 0);
+	self->must_unmount = true;
+
+	fd_pidfd_mnt = openat(-EBADF, self->template, O_RDONLY | O_NOCTTY | O_CLOEXEC);
+	ASSERT_GE(fd_pidfd_mnt, 0);
+
+	ASSERT_GE(fstat(fd_tree, &self->st2), 0);
+	ASSERT_EQ(ioctl(fd_pidfd_mnt, FS_IOC_GETVERSION, &self->gen2), 0);
+
+	ASSERT_TRUE(self->st1.st_dev == self->st2.st_dev && self->st1.st_ino == self->st2.st_ino);
+	ASSERT_TRUE(self->gen1 == self->gen2);
+
+	ASSERT_EQ(close(fd_tree), 0);
+	ASSERT_EQ(close(fd_pidfd_mnt), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_exec_helper.c b/tools/testing/selftests/pidfd/pidfd_exec_helper.c
new file mode 100644
index 000000000000..5516808c95f2
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_exec_helper.c
@@ -0,0 +1,12 @@
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int main(int argc, char *argv[])
+{
+	if (pause())
+		_exit(EXIT_FAILURE);
+
+	_exit(EXIT_SUCCESS);
+}
diff --git a/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
new file mode 100644
index 000000000000..9935e9471c77
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_fdinfo_test.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/wait.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+
+#include "pidfd.h"
+#include "kselftest.h"
+
+struct error {
+	int  code;
+	char msg[512];
+};
+
+static int error_set(struct error *err, int code, const char *fmt, ...)
+{
+	va_list args;
+	int r;
+
+	if (code == PIDFD_PASS || !err || err->code != PIDFD_PASS)
+		return code;
+
+	err->code = code;
+	va_start(args, fmt);
+	r = vsnprintf(err->msg, sizeof(err->msg), fmt, args);
+	assert((size_t)r < sizeof(err->msg));
+	va_end(args);
+
+	return code;
+}
+
+static void error_report(struct error *err, const char *test_name)
+{
+	switch (err->code) {
+	case PIDFD_ERROR:
+		ksft_exit_fail_msg("%s test: Fatal: %s\n", test_name, err->msg);
+		break;
+
+	case PIDFD_FAIL:
+		/* will be: not ok %d # error %s test: %s */
+		ksft_test_result_error("%s test: %s\n", test_name, err->msg);
+		break;
+
+	case PIDFD_SKIP:
+		/* will be: not ok %d # SKIP %s test: %s */
+		ksft_test_result_skip("%s test: %s\n", test_name, err->msg);
+		break;
+
+	case PIDFD_XFAIL:
+		ksft_test_result_pass("%s test: Expected failure: %s\n",
+				      test_name, err->msg);
+		break;
+
+	case PIDFD_PASS:
+		ksft_test_result_pass("%s test: Passed\n", test_name);
+		break;
+
+	default:
+		ksft_exit_fail_msg("%s test: Unknown code: %d %s\n",
+				   test_name, err->code, err->msg);
+		break;
+	}
+}
+
+static inline int error_check(struct error *err, const char *test_name)
+{
+	/* In case of error we bail out and terminate the test program */
+	if (err->code == PIDFD_ERROR)
+		error_report(err, test_name);
+
+	return err->code;
+}
+
+#define CHILD_STACK_SIZE 8192
+
+struct child {
+	char *stack;
+	pid_t pid;
+	int   fd;
+};
+
+static struct child clone_newns(int (*fn)(void *), void *args,
+				struct error *err)
+{
+	static int flags = CLONE_PIDFD | CLONE_NEWPID | CLONE_NEWNS | SIGCHLD;
+	struct child ret;
+
+	if (!(flags & CLONE_NEWUSER) && geteuid() != 0)
+		flags |= CLONE_NEWUSER;
+
+	ret.stack = mmap(NULL, CHILD_STACK_SIZE, PROT_READ | PROT_WRITE,
+			 MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+	if (ret.stack == MAP_FAILED) {
+		error_set(err, -1, "mmap of stack failed (errno %d)", errno);
+		return ret;
+	}
+
+#ifdef __ia64__
+	ret.pid = __clone2(fn, ret.stack, CHILD_STACK_SIZE, flags, args, &ret.fd);
+#else
+	ret.pid = clone(fn, ret.stack + CHILD_STACK_SIZE, flags, args, &ret.fd);
+#endif
+
+	if (ret.pid < 0) {
+		error_set(err, PIDFD_ERROR, "clone failed (ret %d, errno %d)",
+			  ret.fd, errno);
+		return ret;
+	}
+
+	ksft_print_msg("New child: %d, fd: %d\n", ret.pid, ret.fd);
+
+	return ret;
+}
+
+static inline void child_close(struct child *child)
+{
+	close(child->fd);
+}
+
+static inline int child_join(struct child *child, struct error *err)
+{
+	int r;
+
+	r = wait_for_pid(child->pid);
+	if (r < 0)
+		error_set(err, PIDFD_ERROR, "waitpid failed (ret %d, errno %d)",
+			  r, errno);
+	else if (r > 0)
+		error_set(err, r, "child %d reported: %d", child->pid, r);
+
+	if (munmap(child->stack, CHILD_STACK_SIZE)) {
+		error_set(err, -1, "munmap of child stack failed (errno %d)", errno);
+		r = -1;
+	}
+
+	ksft_print_msg("waitpid WEXITSTATUS=%d\n", r);
+	return r;
+}
+
+static inline int child_join_close(struct child *child, struct error *err)
+{
+	child_close(child);
+	return child_join(child, err);
+}
+
+static inline void trim_newline(char *str)
+{
+	char *pos = strrchr(str, '\n');
+
+	if (pos)
+		*pos = '\0';
+}
+
+static int verify_fdinfo(int pidfd, struct error *err, const char *prefix,
+			 size_t prefix_len, const char *expect, ...)
+{
+	char buffer[512] = {0, };
+	char path[512] = {0, };
+	va_list args;
+	FILE *f;
+	char *line = NULL;
+	size_t n = 0;
+	int found = 0;
+	int r;
+
+	va_start(args, expect);
+	r = vsnprintf(buffer, sizeof(buffer), expect, args);
+	assert((size_t)r < sizeof(buffer));
+	va_end(args);
+
+	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", pidfd);
+	f = fopen(path, "re");
+	if (!f)
+		return error_set(err, PIDFD_ERROR, "fdinfo open failed for %d",
+				 pidfd);
+
+	while (getline(&line, &n, f) != -1) {
+		char *val;
+
+		if (strncmp(line, prefix, prefix_len))
+			continue;
+
+		found = 1;
+
+		val = line + prefix_len;
+		r = strcmp(val, buffer);
+		if (r != 0) {
+			trim_newline(line);
+			trim_newline(buffer);
+			error_set(err, PIDFD_FAIL, "%s '%s' != '%s'",
+				  prefix, val, buffer);
+		}
+		break;
+	}
+
+	free(line);
+	fclose(f);
+
+	if (found == 0)
+		return error_set(err, PIDFD_FAIL, "%s not found for fd %d",
+				 prefix, pidfd);
+
+	return PIDFD_PASS;
+}
+
+static int child_fdinfo_nspid_test(void *args)
+{
+	struct error err;
+	int pidfd;
+	int r;
+
+	/* if we got no fd for the sibling, we are done */
+	if (!args)
+		return PIDFD_PASS;
+
+	/* verify that we can not resolve the pidfd for a process
+	 * in a sibling pid namespace, i.e. a pid namespace it is
+	 * not in our or a descended namespace
+	 */
+	r = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+	if (r < 0) {
+		ksft_print_msg("Failed to remount / private\n");
+		return PIDFD_ERROR;
+	}
+
+	(void)umount2("/proc", MNT_DETACH);
+	r = mount("proc", "/proc", "proc", 0, NULL);
+	if (r < 0) {
+		ksft_print_msg("Failed to remount /proc\n");
+		return PIDFD_ERROR;
+	}
+
+	pidfd = *(int *)args;
+	r = verify_fdinfo(pidfd, &err, "NSpid:", 6, "\t0\n");
+
+	if (r != PIDFD_PASS)
+		ksft_print_msg("NSpid fdinfo check failed: %s\n", err.msg);
+
+	return r;
+}
+
+static void test_pidfd_fdinfo_nspid(void)
+{
+	struct child a, b;
+	struct error err = {0, };
+	const char *test_name = "pidfd check for NSpid in fdinfo";
+
+	/* Create a new child in a new pid and mount namespace */
+	a = clone_newns(child_fdinfo_nspid_test, NULL, &err);
+	error_check(&err, test_name);
+
+	/* Pass the pidfd representing the first child to the
+	 * second child, which will be in a sibling pid namespace,
+	 * which means that the fdinfo NSpid entry for the pidfd
+	 * should only contain '0'.
+	 */
+	b = clone_newns(child_fdinfo_nspid_test, &a.fd, &err);
+	error_check(&err, test_name);
+
+	/* The children will have pid 1 in the new pid namespace,
+	 * so the line must be 'NSPid:\t<pid>\t1'.
+	 */
+	verify_fdinfo(a.fd, &err, "NSpid:", 6, "\t%d\t%d\n", a.pid, 1);
+	verify_fdinfo(b.fd, &err, "NSpid:", 6, "\t%d\t%d\n", b.pid, 1);
+
+	/* wait for the process, check the exit status and set
+	 * 'err' accordingly, if it is not already set.
+	 */
+	child_join_close(&a, &err);
+	child_join_close(&b, &err);
+
+	error_report(&err, test_name);
+}
+
+static void test_pidfd_dead_fdinfo(void)
+{
+	struct child a;
+	struct error err = {0, };
+	const char *test_name = "pidfd check fdinfo for dead process";
+
+	/* Create a new child in a new pid and mount namespace */
+	a = clone_newns(child_fdinfo_nspid_test, NULL, &err);
+	error_check(&err, test_name);
+	child_join(&a, &err);
+
+	verify_fdinfo(a.fd, &err, "Pid:", 4, "\t-1\n");
+	verify_fdinfo(a.fd, &err, "NSpid:", 6, "\t-1\n");
+	child_close(&a);
+	error_report(&err, test_name);
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(2);
+
+	test_pidfd_fdinfo_nspid();
+	test_pidfd_dead_fdinfo();
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/pidfd/pidfd_file_handle_test.c b/tools/testing/selftests/pidfd/pidfd_file_handle_test.c
new file mode 100644
index 000000000000..68918734dcf3
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_file_handle_test.c
@@ -0,0 +1,563 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/kcmp.h>
+#include <sys/stat.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+FIXTURE(file_handle)
+{
+	pid_t pid;
+	int pidfd;
+
+	pid_t child_pid1;
+	int child_pidfd1;
+
+	pid_t child_pid2;
+	int child_pidfd2;
+
+	pid_t child_pid3;
+	int child_pidfd3;
+};
+
+FIXTURE_SETUP(file_handle)
+{
+	int ret;
+	int ipc_sockets[2];
+	char c;
+
+	self->pid = getpid();
+	self->pidfd = sys_pidfd_open(self->pid, 0);
+	ASSERT_GE(self->pidfd, 0);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	self->child_pid1 = create_child(&self->child_pidfd1, CLONE_NEWUSER);
+	EXPECT_GE(self->child_pid1, 0);
+
+	if (self->child_pid1 == 0) {
+		close(ipc_sockets[0]);
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(ipc_sockets[1]);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	close(ipc_sockets[0]);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	self->child_pid2 = create_child(&self->child_pidfd2, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid2, 0);
+
+	if (self->child_pid2 == 0) {
+		close(ipc_sockets[0]);
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(ipc_sockets[1]);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	close(ipc_sockets[0]);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	self->child_pid3 = create_child(&self->child_pidfd3, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid3, 0);
+
+	if (self->child_pid3 == 0) {
+		close(ipc_sockets[0]);
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(ipc_sockets[1]);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	close(ipc_sockets[0]);
+}
+
+FIXTURE_TEARDOWN(file_handle)
+{
+	EXPECT_EQ(close(self->pidfd), 0);
+
+	EXPECT_EQ(sys_pidfd_send_signal(self->child_pidfd1, SIGKILL, NULL, 0), 0);
+	if (self->child_pidfd1 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd1));
+
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid1, NULL, WEXITED), 0);
+
+	EXPECT_EQ(sys_pidfd_send_signal(self->child_pidfd2, SIGKILL, NULL, 0), 0);
+	if (self->child_pidfd2 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd2));
+
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid2, NULL, WEXITED), 0);
+
+	if (self->child_pidfd3 >= 0) {
+		EXPECT_EQ(sys_pidfd_send_signal(self->child_pidfd3, SIGKILL, NULL, 0), 0);
+		EXPECT_EQ(0, close(self->child_pidfd3));
+		EXPECT_EQ(sys_waitid(P_PID, self->child_pid3, NULL, WEXITED), 0);
+	}
+}
+
+/*
+ * Test that we can decode a pidfs file handle in the same pid
+ * namespace.
+ */
+TEST_F(file_handle, file_handle_same_pidns)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	int pidfd = -EBADF;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd1, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd1, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, O_NONBLOCK);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	free(fh);
+}
+
+/*
+ * Test that we can decode a pidfs file handle from a child pid
+ * namespace.
+ */
+TEST_F(file_handle, file_handle_child_pidns)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	int pidfd = -EBADF;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd2, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd2, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, O_NONBLOCK);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	free(fh);
+}
+
+/*
+ * Test that we fail to decode a pidfs file handle from an ancestor
+ * child pid namespace.
+ */
+TEST_F(file_handle, file_handle_foreign_pidns)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	pid_t pid;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->pidfd, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(setns(self->child_pidfd2, CLONE_NEWUSER | CLONE_NEWPID), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int pidfd = open_by_handle_at(self->pidfd, fh, 0);
+		if (pidfd >= 0) {
+			TH_LOG("Managed to open pidfd outside of the caller's pid namespace hierarchy");
+			_exit(1);
+		}
+		_exit(0);
+	}
+
+	ASSERT_EQ(wait_for_pid(pid), 0);
+
+	free(fh);
+}
+
+/*
+ * Test that we can decode a pidfs file handle of a process that has
+ * exited but not been reaped.
+ */
+TEST_F(file_handle, pid_has_exited)
+{
+	int mnt_id, pidfd, child_pidfd3;
+	struct file_handle *fh;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd3, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd3, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	child_pidfd3 = self->child_pidfd3;
+	self->child_pidfd3 = -EBADF;
+	EXPECT_EQ(sys_pidfd_send_signal(child_pidfd3, SIGKILL, NULL, 0), 0);
+	EXPECT_EQ(close(child_pidfd3), 0);
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid3, NULL, WEXITED | WNOWAIT), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid3, NULL, WEXITED), 0);
+}
+
+/*
+ * Test that we fail to decode a pidfs file handle of a process that has
+ * already been reaped.
+ */
+TEST_F(file_handle, pid_has_been_reaped)
+{
+	int mnt_id, pidfd, child_pidfd3;
+	struct file_handle *fh;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd3, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd3, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	child_pidfd3 = self->child_pidfd3;
+	self->child_pidfd3 = -EBADF;
+	EXPECT_EQ(sys_pidfd_send_signal(child_pidfd3, SIGKILL, NULL, 0), 0);
+	EXPECT_EQ(close(child_pidfd3), 0);
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid3, NULL, WEXITED), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_LT(pidfd, 0);
+}
+
+/*
+ * Test valid flags to open a pidfd file handle. Note, that
+ * PIDFD_NONBLOCK is defined as O_NONBLOCK and O_NONBLOCK is an alias to
+ * O_NDELAY. Also note that PIDFD_THREAD is an alias for O_EXCL.
+ */
+TEST_F(file_handle, open_by_handle_at_valid_flags)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	int pidfd = -EBADF;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd2, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd2, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh,
+				  O_RDONLY |
+				  O_WRONLY |
+				  O_RDWR |
+				  O_NONBLOCK |
+				  O_NDELAY |
+				  O_CLOEXEC |
+				  O_EXCL);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+}
+
+/*
+ * Test that invalid flags passed to open a pidfd file handle are
+ * rejected.
+ */
+TEST_F(file_handle, open_by_handle_at_invalid_flags)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	int pidfd = -EBADF;
+	static const struct invalid_pidfs_file_handle_flags {
+		int oflag;
+		const char *oflag_name;
+	}  invalid_pidfs_file_handle_flags[] = {
+		{ FASYNC,	"FASYNC"	},
+		{ O_CREAT,	"O_CREAT"	},
+		{ O_NOCTTY,	"O_NOCTTY"	},
+		{ O_CREAT,	"O_CREAT"	},
+		{ O_TRUNC,	"O_TRUNC"	},
+		{ O_APPEND,	"O_APPEND"	},
+		{ O_SYNC,	"O_SYNC"	},
+		{ O_DSYNC,	"O_DSYNC"	},
+		{ O_DIRECT,	"O_DIRECT"	},
+		{ O_DIRECTORY,	"O_DIRECTORY"	},
+		{ O_NOFOLLOW,	"O_NOFOLLOW"	},
+		{ O_NOATIME,	"O_NOATIME"	},
+		{ O_PATH,	"O_PATH"	},
+		{ O_TMPFILE,	"O_TMPFILE"	},
+		/*
+		 * O_LARGEFILE is added implicitly by
+		 * open_by_handle_at() so pidfs simply masks it off.
+		 */
+	};
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd2, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	for (int i = 0; i < ARRAY_SIZE(invalid_pidfs_file_handle_flags); i++) {
+		pidfd = open_by_handle_at(self->pidfd, fh, invalid_pidfs_file_handle_flags[i].oflag);
+		ASSERT_LT(pidfd, 0) {
+			TH_LOG("open_by_handle_at() succeeded with invalid flags: %s", invalid_pidfs_file_handle_flags[i].oflag_name);
+		}
+	}
+}
+
+/* Test that lookup fails. */
+TEST_F(file_handle, lookup_must_fail)
+{
+	int mnt_id;
+	struct file_handle *fh;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_NE(name_to_handle_at(self->child_pidfd2, "lookup-is-not-possible-with-pidfs", fh, &mnt_id, AT_EMPTY_PATH), 0);
+	ASSERT_EQ(errno, ENOTDIR);
+	ASSERT_NE(name_to_handle_at(self->child_pidfd2, "lookup-is-not-possible-with-pidfs", fh, &mnt_id, 0), 0);
+	ASSERT_EQ(errno, ENOTDIR);
+}
+
+#ifndef AT_HANDLE_CONNECTABLE
+#define AT_HANDLE_CONNECTABLE 0x002
+#endif
+
+/*
+ * Test that AT_HANDLE_CONNECTABLE is rejected. Connectable file handles
+ * don't make sense for pidfs. Note that currently AT_HANDLE_CONNECTABLE
+ * is rejected because it is incompatible with AT_EMPTY_PATH which is
+ * required with pidfds as we don't support lookup.
+ */
+TEST_F(file_handle, invalid_name_to_handle_at_flags)
+{
+	int mnt_id;
+	struct file_handle *fh;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_NE(name_to_handle_at(self->child_pidfd2, "", fh, &mnt_id, AT_EMPTY_PATH | AT_HANDLE_CONNECTABLE), 0);
+}
+
+#ifndef AT_HANDLE_FID
+#define AT_HANDLE_FID 0x200
+#endif
+
+/*
+ * Test that a request with AT_HANDLE_FID always leads to decodable file
+ * handle as pidfs always provides export operations.
+ */
+TEST_F(file_handle, valid_name_to_handle_at_flags)
+{
+	int mnt_id, pidfd;
+	struct file_handle *fh;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd2, "", fh, &mnt_id, AT_EMPTY_PATH | AT_HANDLE_FID), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd2, &st1), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+}
+
+/*
+ * That we decode a file handle without having to pass a pidfd.
+ */
+TEST_F(file_handle, decode_purely_based_on_file_handle)
+{
+	int mnt_id;
+	struct file_handle *fh;
+	int pidfd = -EBADF;
+	struct stat st1, st2;
+
+	fh = malloc(sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	ASSERT_NE(fh, NULL);
+	memset(fh, 0, sizeof(struct file_handle) + MAX_HANDLE_SZ);
+	fh->handle_bytes = MAX_HANDLE_SZ;
+
+	ASSERT_EQ(name_to_handle_at(self->child_pidfd1, "", fh, &mnt_id, AT_EMPTY_PATH), 0);
+
+	ASSERT_EQ(fstat(self->child_pidfd1, &st1), 0);
+
+	pidfd = open_by_handle_at(FD_PIDFS_ROOT, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(FD_PIDFS_ROOT, fh, O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(FD_PIDFS_ROOT, fh, O_NONBLOCK);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(self->pidfd, fh, 0);
+	ASSERT_GE(pidfd, 0);
+
+	ASSERT_EQ(fstat(pidfd, &st2), 0);
+	ASSERT_TRUE(st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino);
+
+	ASSERT_EQ(close(pidfd), 0);
+
+	pidfd = open_by_handle_at(-EBADF, fh, 0);
+	ASSERT_LT(pidfd, 0);
+
+	pidfd = open_by_handle_at(AT_FDCWD, fh, 0);
+	ASSERT_LT(pidfd, 0);
+
+	free(fh);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_getfd_test.c b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
new file mode 100644
index 000000000000..ea45b37001b0
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_getfd_test.c
@@ -0,0 +1,275 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/kcmp.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+/*
+ * UNKNOWN_FD is an fd number that should never exist in the child, as it is
+ * used to check the negative case.
+ */
+#define UNKNOWN_FD 111
+#define UID_NOBODY 65535
+
+static int sys_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1,
+		    unsigned long idx2)
+{
+	return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
+}
+
+static int __child(int sk, int memfd)
+{
+	int ret;
+	char buf;
+
+	/*
+	 * Ensure we don't leave around a bunch of orphaned children if our
+	 * tests fail.
+	 */
+	ret = prctl(PR_SET_PDEATHSIG, SIGKILL);
+	if (ret) {
+		fprintf(stderr, "%s: Child could not set DEATHSIG\n",
+			strerror(errno));
+		return -1;
+	}
+
+	ret = send(sk, &memfd, sizeof(memfd), 0);
+	if (ret != sizeof(memfd)) {
+		fprintf(stderr, "%s: Child failed to send fd number\n",
+			strerror(errno));
+		return -1;
+	}
+
+	/*
+	 * The fixture setup is completed at this point. The tests will run.
+	 *
+	 * This blocking recv enables the parent to message the child.
+	 * Either we will read 'P' off of the sk, indicating that we need
+	 * to disable ptrace, or we will read a 0, indicating that the other
+	 * side has closed the sk. This occurs during fixture teardown time,
+	 * indicating that the child should exit.
+	 */
+	while ((ret = recv(sk, &buf, sizeof(buf), 0)) > 0) {
+		if (buf == 'P') {
+			ret = prctl(PR_SET_DUMPABLE, 0);
+			if (ret < 0) {
+				fprintf(stderr,
+					"%s: Child failed to disable ptrace\n",
+					strerror(errno));
+				return -1;
+			}
+		} else {
+			fprintf(stderr, "Child received unknown command %c\n",
+				buf);
+			return -1;
+		}
+		ret = send(sk, &buf, sizeof(buf), 0);
+		if (ret != 1) {
+			fprintf(stderr, "%s: Child failed to ack\n",
+				strerror(errno));
+			return -1;
+		}
+	}
+	if (ret < 0) {
+		fprintf(stderr, "%s: Child failed to read from socket\n",
+			strerror(errno));
+		return -1;
+	}
+
+	return 0;
+}
+
+static int child(int sk)
+{
+	int memfd, ret;
+
+	memfd = sys_memfd_create("test", 0);
+	if (memfd < 0) {
+		fprintf(stderr, "%s: Child could not create memfd\n",
+			strerror(errno));
+		ret = -1;
+	} else {
+		ret = __child(sk, memfd);
+		close(memfd);
+	}
+
+	close(sk);
+	return ret;
+}
+
+FIXTURE(child)
+{
+	/*
+	 * remote_fd is the number of the FD which we are trying to retrieve
+	 * from the child.
+	 */
+	int remote_fd;
+	/* pid points to the child which we are fetching FDs from */
+	pid_t pid;
+	/* pidfd is the pidfd of the child */
+	int pidfd;
+	/*
+	 * sk is our side of the socketpair used to communicate with the child.
+	 * When it is closed, the child will exit.
+	 */
+	int sk;
+	bool ignore_child_result;
+};
+
+FIXTURE_SETUP(child)
+{
+	int ret, sk_pair[2];
+
+	ASSERT_EQ(0, socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sk_pair)) {
+		TH_LOG("%s: failed to create socketpair", strerror(errno));
+	}
+	self->sk = sk_pair[0];
+
+	self->pid = fork();
+	ASSERT_GE(self->pid, 0);
+
+	if (self->pid == 0) {
+		close(sk_pair[0]);
+		if (child(sk_pair[1]))
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(sk_pair[1]);
+
+	self->pidfd = sys_pidfd_open(self->pid, 0);
+	ASSERT_GE(self->pidfd, 0);
+
+	/*
+	 * Wait for the child to complete setup. It'll send the remote memfd's
+	 * number when ready.
+	 */
+	ret = recv(sk_pair[0], &self->remote_fd, sizeof(self->remote_fd), 0);
+	ASSERT_EQ(sizeof(self->remote_fd), ret);
+}
+
+FIXTURE_TEARDOWN(child)
+{
+	int ret;
+
+	EXPECT_EQ(0, close(self->pidfd));
+	EXPECT_EQ(0, close(self->sk));
+
+	ret = wait_for_pid(self->pid);
+	if (!self->ignore_child_result)
+		EXPECT_EQ(0, ret);
+}
+
+TEST_F(child, disable_ptrace)
+{
+	int uid, fd;
+	char c;
+
+	/*
+	 * Turn into nobody if we're root, to avoid CAP_SYS_PTRACE
+	 *
+	 * The tests should run in their own process, so even this test fails,
+	 * it shouldn't result in subsequent tests failing.
+	 */
+	uid = getuid();
+	if (uid == 0)
+		ASSERT_EQ(0, seteuid(UID_NOBODY));
+
+	ASSERT_EQ(1, send(self->sk, "P", 1, 0));
+	ASSERT_EQ(1, recv(self->sk, &c, 1, 0));
+
+	fd = sys_pidfd_getfd(self->pidfd, self->remote_fd, 0);
+	EXPECT_EQ(-1, fd);
+	EXPECT_EQ(EPERM, errno);
+
+	if (uid == 0)
+		ASSERT_EQ(0, seteuid(0));
+}
+
+TEST_F(child, fetch_fd)
+{
+	int fd, ret;
+
+	fd = sys_pidfd_getfd(self->pidfd, self->remote_fd, 0);
+	ASSERT_GE(fd, 0);
+
+	ret = sys_kcmp(getpid(), self->pid, KCMP_FILE, fd, self->remote_fd);
+	if (ret < 0 && errno == ENOSYS)
+		SKIP(return, "kcmp() syscall not supported");
+	EXPECT_EQ(ret, 0);
+
+	ret = fcntl(fd, F_GETFD);
+	ASSERT_GE(ret, 0);
+	EXPECT_GE(ret & FD_CLOEXEC, 0);
+
+	close(fd);
+}
+
+TEST_F(child, test_unknown_fd)
+{
+	int fd;
+
+	fd = sys_pidfd_getfd(self->pidfd, UNKNOWN_FD, 0);
+	EXPECT_EQ(-1, fd) {
+		TH_LOG("getfd succeeded while fetching unknown fd");
+	};
+	EXPECT_EQ(EBADF, errno) {
+		TH_LOG("%s: getfd did not get EBADF", strerror(errno));
+	}
+}
+
+TEST(flags_set)
+{
+	ASSERT_EQ(-1, sys_pidfd_getfd(0, 0, 1));
+	EXPECT_EQ(errno, EINVAL);
+}
+
+TEST_F(child, no_strange_EBADF)
+{
+	struct pollfd fds;
+
+	self->ignore_child_result = true;
+
+	fds.fd = self->pidfd;
+	fds.events = POLLIN;
+
+	ASSERT_EQ(kill(self->pid, SIGKILL), 0);
+	ASSERT_EQ(poll(&fds, 1, 5000), 1);
+
+	/*
+	 * It used to be that pidfd_getfd() could race with the exiting thread
+	 * between exit_files() and release_task(), and get a non-null task
+	 * with a NULL files struct, and you'd get EBADF, which was slightly
+	 * confusing.
+	 */
+	errno = 0;
+	EXPECT_EQ(sys_pidfd_getfd(self->pidfd, self->remote_fd, 0), -1);
+	EXPECT_EQ(errno, ESRCH);
+}
+
+#if __NR_pidfd_getfd == -1
+int main(void)
+{
+	fprintf(stderr, "__NR_pidfd_getfd undefined. The pidfd_getfd syscall is unavailable. Test aborting\n");
+	return KSFT_SKIP;
+}
+#else
+TEST_HARNESS_MAIN
+#endif
diff --git a/tools/testing/selftests/pidfd/pidfd_info_test.c b/tools/testing/selftests/pidfd/pidfd_info_test.c
new file mode 100644
index 000000000000..6571e04acd88
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_info_test.c
@@ -0,0 +1,766 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/kcmp.h>
+#include <sys/stat.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+FIXTURE(pidfd_info)
+{
+	pid_t child_pid1;
+	int child_pidfd1;
+
+	pid_t child_pid2;
+	int child_pidfd2;
+
+	pid_t child_pid3;
+	int child_pidfd3;
+
+	pid_t child_pid4;
+	int child_pidfd4;
+};
+
+FIXTURE_SETUP(pidfd_info)
+{
+	int ret;
+	int ipc_sockets[2];
+	char c;
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	self->child_pid1 = create_child(&self->child_pidfd1, 0);
+	EXPECT_GE(self->child_pid1, 0);
+
+	if (self->child_pid1 == 0) {
+		close(ipc_sockets[0]);
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	/* SIGKILL but don't reap. */
+	EXPECT_EQ(sys_pidfd_send_signal(self->child_pidfd1, SIGKILL, NULL, 0), 0);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	self->child_pid2 = create_child(&self->child_pidfd2, 0);
+	EXPECT_GE(self->child_pid2, 0);
+
+	if (self->child_pid2 == 0) {
+		close(ipc_sockets[0]);
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	/* SIGKILL and reap. */
+	EXPECT_EQ(sys_pidfd_send_signal(self->child_pidfd2, SIGKILL, NULL, 0), 0);
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid2, NULL, WEXITED), 0);
+
+	self->child_pid3 = create_child(&self->child_pidfd3, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid3, 0);
+
+	if (self->child_pid3 == 0)
+		_exit(EXIT_SUCCESS);
+
+	self->child_pid4 = create_child(&self->child_pidfd4, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid4, 0);
+
+	if (self->child_pid4 == 0)
+		_exit(EXIT_SUCCESS);
+
+	EXPECT_EQ(sys_waitid(P_PID, self->child_pid4, NULL, WEXITED), 0);
+}
+
+FIXTURE_TEARDOWN(pidfd_info)
+{
+	sys_pidfd_send_signal(self->child_pidfd1, SIGKILL, NULL, 0);
+	if (self->child_pidfd1 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd1));
+
+	sys_waitid(P_PID, self->child_pid1, NULL, WEXITED);
+
+	sys_pidfd_send_signal(self->child_pidfd2, SIGKILL, NULL, 0);
+	if (self->child_pidfd2 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd2));
+
+	sys_waitid(P_PID, self->child_pid2, NULL, WEXITED);
+	sys_waitid(P_PID, self->child_pid3, NULL, WEXITED);
+	sys_waitid(P_PID, self->child_pid4, NULL, WEXITED);
+}
+
+TEST_F(pidfd_info, sigkill_exit)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID,
+	};
+
+	/* Process has exited but not been reaped so this must work. */
+	ASSERT_EQ(ioctl(self->child_pidfd1, PIDFD_GET_INFO, &info), 0);
+
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(self->child_pidfd1, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	/* Process has exited but not been reaped, so no PIDFD_INFO_EXIT information yet. */
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+}
+
+TEST_F(pidfd_info, sigkill_reaped)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID,
+	};
+
+	/* Process has already been reaped and PIDFD_INFO_EXIT hasn't been set. */
+	ASSERT_NE(ioctl(self->child_pidfd2, PIDFD_GET_INFO, &info), 0);
+	ASSERT_EQ(errno, ESRCH);
+
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(self->child_pidfd2, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_TRUE(WIFSIGNALED(info.exit_code));
+	ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL);
+}
+
+TEST_F(pidfd_info, success_exit)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID,
+	};
+
+	/* Process has exited but not been reaped so this must work. */
+	ASSERT_EQ(ioctl(self->child_pidfd3, PIDFD_GET_INFO, &info), 0);
+
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(self->child_pidfd3, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	/* Process has exited but not been reaped, so no PIDFD_INFO_EXIT information yet. */
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+}
+
+TEST_F(pidfd_info, success_reaped)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID,
+	};
+
+	/* Process has already been reaped and PIDFD_INFO_EXIT hasn't been set. */
+	ASSERT_NE(ioctl(self->child_pidfd4, PIDFD_GET_INFO, &info), 0);
+	ASSERT_EQ(errno, ESRCH);
+
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(self->child_pidfd4, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_TRUE(WIFEXITED(info.exit_code));
+	ASSERT_EQ(WEXITSTATUS(info.exit_code), 0);
+}
+
+TEST_F(pidfd_info, success_reaped_poll)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT,
+	};
+	struct pollfd fds = {};
+	int nevents;
+
+	fds.events = POLLIN;
+	fds.fd = self->child_pidfd2;
+
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	ASSERT_TRUE(!!(fds.revents & POLLIN));
+	ASSERT_TRUE(!!(fds.revents & POLLHUP));
+
+	ASSERT_EQ(ioctl(self->child_pidfd2, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_TRUE(WIFSIGNALED(info.exit_code));
+	ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL);
+}
+
+static void *pidfd_info_pause_thread(void *arg)
+{
+	pid_t pid_thread = gettid();
+	int ipc_socket = *(int *)arg;
+
+	/* Inform the grand-parent what the tid of this thread is. */
+	if (write_nointr(ipc_socket, &pid_thread, sizeof(pid_thread)) != sizeof(pid_thread))
+		return NULL;
+
+	close(ipc_socket);
+
+	/* Sleep untill we're killed. */
+	pause();
+	return NULL;
+}
+
+TEST_F(pidfd_info, thread_group)
+{
+	pid_t pid_leader, pid_poller, pid_thread;
+	pthread_t thread;
+	int nevents, pidfd_leader, pidfd_thread, pidfd_leader_thread, ret;
+	int ipc_sockets[2];
+	struct pollfd fds = {};
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT,
+	}, info2;
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	pid_leader = create_child(&pidfd_leader, 0);
+	EXPECT_GE(pid_leader, 0);
+
+	if (pid_leader == 0) {
+		close(ipc_sockets[0]);
+
+		/* The thread will outlive the thread-group leader. */
+		if (pthread_create(&thread, NULL, pidfd_info_pause_thread, &ipc_sockets[1]))
+			syscall(__NR_exit, EXIT_FAILURE);
+
+		/* Make the thread-group leader exit prematurely. */
+		syscall(__NR_exit, EXIT_SUCCESS);
+	}
+
+	/*
+	 * Opening a PIDFD_THREAD aka thread-specific pidfd based on a
+	 * thread-group leader must succeed.
+	 */
+	pidfd_leader_thread = sys_pidfd_open(pid_leader, PIDFD_THREAD);
+	ASSERT_GE(pidfd_leader_thread, 0);
+
+	pid_poller = fork();
+	ASSERT_GE(pid_poller, 0);
+	if (pid_poller == 0) {
+		/*
+		 * We can't poll and wait for the old thread-group
+		 * leader to exit using a thread-specific pidfd. The
+		 * thread-group leader exited prematurely and
+		 * notification is delayed until all subthreads have
+		 * exited.
+		 */
+		fds.events = POLLIN;
+		fds.fd = pidfd_leader_thread;
+		nevents = poll(&fds, 1, 10000 /* wait 5 seconds */);
+		if (nevents != 0)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLIN)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLHUP)
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	/* Retrieve the tid of the thread. */
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &pid_thread, sizeof(pid_thread)), sizeof(pid_thread));
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	/* Opening a thread as a thread-group leader must fail. */
+	pidfd_thread = sys_pidfd_open(pid_thread, 0);
+	ASSERT_LT(pidfd_thread, 0);
+	ASSERT_EQ(errno, ENOENT);
+
+	/* Opening a thread as a PIDFD_THREAD must succeed. */
+	pidfd_thread = sys_pidfd_open(pid_thread, PIDFD_THREAD);
+	ASSERT_GE(pidfd_thread, 0);
+
+	ASSERT_EQ(wait_for_pid(pid_poller), 0);
+
+	/*
+	 * Note that pidfd_leader is a thread-group pidfd, so polling on it
+	 * would only notify us once all thread in the thread-group have
+	 * exited. So we can't poll before we have taken down the whole
+	 * thread-group.
+	 */
+
+	/* Get PIDFD_GET_INFO using the thread-group leader pidfd. */
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	/* Process has exited but not been reaped, so no PIDFD_INFO_EXIT information yet. */
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_EQ(info.pid, pid_leader);
+
+	/*
+	 * Now retrieve the same info using the thread specific pidfd
+	 * for the thread-group leader.
+	 */
+	info2.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader_thread, PIDFD_GET_INFO, &info2), 0);
+	ASSERT_TRUE(!!(info2.mask & PIDFD_INFO_CREDS));
+	/* Process has exited but not been reaped, so no PIDFD_INFO_EXIT information yet. */
+	ASSERT_FALSE(!!(info2.mask & PIDFD_INFO_EXIT));
+	ASSERT_EQ(info2.pid, pid_leader);
+
+	/* Now try the thread-specific pidfd. */
+	ASSERT_EQ(ioctl(pidfd_thread, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	/* The thread hasn't exited, so no PIDFD_INFO_EXIT information yet. */
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_EQ(info.pid, pid_thread);
+
+	/*
+	 * Take down the whole thread-group. The thread-group leader
+	 * exited successfully but the thread will now be SIGKILLed.
+	 * This must be reflected in the recorded exit information.
+	 */
+	EXPECT_EQ(sys_pidfd_send_signal(pidfd_leader, SIGKILL, NULL, 0), 0);
+	EXPECT_EQ(sys_waitid(P_PIDFD, pidfd_leader, NULL, WEXITED), 0);
+
+	fds.events = POLLIN;
+	fds.fd = pidfd_leader;
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	ASSERT_TRUE(!!(fds.revents & POLLIN));
+	/* The thread-group leader has been reaped. */
+	ASSERT_TRUE(!!(fds.revents & POLLHUP));
+
+	/*
+	 * Retrieve exit information for the thread-group leader via the
+	 * thread-group leader pidfd.
+	 */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	/* Even though the thread-group exited successfully it will still report the group exit code. */
+	ASSERT_TRUE(WIFSIGNALED(info.exit_code));
+	ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL);
+
+	/*
+	 * Retrieve exit information for the thread-group leader via the
+	 * thread-specific pidfd.
+	 */
+	info2.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader_thread, PIDFD_GET_INFO, &info2), 0);
+	ASSERT_FALSE(!!(info2.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info2.mask & PIDFD_INFO_EXIT));
+
+	/* Even though the thread-group exited successfully it will still report the group exit code. */
+	ASSERT_TRUE(WIFSIGNALED(info2.exit_code));
+	ASSERT_EQ(WTERMSIG(info2.exit_code), SIGKILL);
+
+	/* Retrieve exit information for the thread. */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_thread, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+
+	/* The thread got SIGKILLed. */
+	ASSERT_TRUE(WIFSIGNALED(info.exit_code));
+	ASSERT_EQ(WTERMSIG(info.exit_code), SIGKILL);
+
+	EXPECT_EQ(close(pidfd_leader), 0);
+	EXPECT_EQ(close(pidfd_thread), 0);
+}
+
+static void *pidfd_info_thread_exec(void *arg)
+{
+	pid_t pid_thread = gettid();
+	int ipc_socket = *(int *)arg;
+
+	/* Inform the grand-parent what the tid of this thread is. */
+	if (write_nointr(ipc_socket, &pid_thread, sizeof(pid_thread)) != sizeof(pid_thread))
+		return NULL;
+
+	if (read_nointr(ipc_socket, &pid_thread, sizeof(pid_thread)) != sizeof(pid_thread))
+		return NULL;
+
+	close(ipc_socket);
+
+	sys_execveat(AT_FDCWD, "pidfd_exec_helper", NULL, NULL, 0);
+	return NULL;
+}
+
+TEST_F(pidfd_info, thread_group_exec)
+{
+	pid_t pid_leader, pid_poller, pid_thread;
+	pthread_t thread;
+	int nevents, pidfd_leader, pidfd_leader_thread, pidfd_thread, ret;
+	int ipc_sockets[2];
+	struct pollfd fds = {};
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT,
+	};
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	pid_leader = create_child(&pidfd_leader, 0);
+	EXPECT_GE(pid_leader, 0);
+
+	if (pid_leader == 0) {
+		close(ipc_sockets[0]);
+
+		/* The thread will outlive the thread-group leader. */
+		if (pthread_create(&thread, NULL, pidfd_info_thread_exec, &ipc_sockets[1]))
+			syscall(__NR_exit, EXIT_FAILURE);
+
+		/* Make the thread-group leader exit prematurely. */
+		syscall(__NR_exit, EXIT_SUCCESS);
+	}
+
+	/* Open a thread-specific pidfd for the thread-group leader. */
+	pidfd_leader_thread = sys_pidfd_open(pid_leader, PIDFD_THREAD);
+	ASSERT_GE(pidfd_leader_thread, 0);
+
+	pid_poller = fork();
+	ASSERT_GE(pid_poller, 0);
+	if (pid_poller == 0) {
+		/*
+		 * We can't poll and wait for the old thread-group
+		 * leader to exit using a thread-specific pidfd. The
+		 * thread-group leader exited prematurely and
+		 * notification is delayed until all subthreads have
+		 * exited.
+		 *
+		 * When the thread has execed it will taken over the old
+		 * thread-group leaders struct pid. Calling poll after
+		 * the thread execed will thus block again because a new
+		 * thread-group has started.
+		 */
+		fds.events = POLLIN;
+		fds.fd = pidfd_leader_thread;
+		nevents = poll(&fds, 1, 10000 /* wait 5 seconds */);
+		if (nevents != 0)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLIN)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLHUP)
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	/* Retrieve the tid of the thread. */
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &pid_thread, sizeof(pid_thread)), sizeof(pid_thread));
+
+	/* Opening a thread as a PIDFD_THREAD must succeed. */
+	pidfd_thread = sys_pidfd_open(pid_thread, PIDFD_THREAD);
+	ASSERT_GE(pidfd_thread, 0);
+
+	/* Now that we've opened a thread-specific pidfd the thread can exec. */
+	ASSERT_EQ(write_nointr(ipc_sockets[0], &pid_thread, sizeof(pid_thread)), sizeof(pid_thread));
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+
+	ASSERT_EQ(wait_for_pid(pid_poller), 0);
+
+	/* Wait until the kernel has SIGKILLed the thread. */
+	fds.events = POLLHUP;
+	fds.fd = pidfd_thread;
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	/* The thread has been reaped. */
+	ASSERT_TRUE(!!(fds.revents & POLLHUP));
+
+	/* Retrieve thread-specific exit info from pidfd. */
+	ASSERT_EQ(ioctl(pidfd_thread, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	/*
+	 * While the kernel will have SIGKILLed the whole thread-group
+	 * during exec it will cause the individual threads to exit
+	 * cleanly.
+	 */
+	ASSERT_TRUE(WIFEXITED(info.exit_code));
+	ASSERT_EQ(WEXITSTATUS(info.exit_code), 0);
+
+	/*
+	 * The thread-group leader is still alive, the thread has taken
+	 * over its struct pid and thus its pid number.
+	 */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_EQ(info.pid, pid_leader);
+
+	/* Take down the thread-group leader. */
+	EXPECT_EQ(sys_pidfd_send_signal(pidfd_leader, SIGKILL, NULL, 0), 0);
+
+	/*
+	 * Afte the exec we're dealing with an empty thread-group so now
+	 * we must see an exit notification on the thread-specific pidfd
+	 * for the thread-group leader as there's no subthread that can
+	 * revive the struct pid.
+	 */
+	fds.events = POLLIN;
+	fds.fd = pidfd_leader_thread;
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	ASSERT_TRUE(!!(fds.revents & POLLIN));
+	ASSERT_FALSE(!!(fds.revents & POLLHUP));
+
+	EXPECT_EQ(sys_waitid(P_PIDFD, pidfd_leader, NULL, WEXITED), 0);
+
+	/* Retrieve exit information for the thread-group leader. */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+
+	EXPECT_EQ(close(pidfd_leader), 0);
+	EXPECT_EQ(close(pidfd_thread), 0);
+}
+
+static void *pidfd_info_thread_exec_sane(void *arg)
+{
+	pid_t pid_thread = gettid();
+	int ipc_socket = *(int *)arg;
+
+	/* Inform the grand-parent what the tid of this thread is. */
+	if (write_nointr(ipc_socket, &pid_thread, sizeof(pid_thread)) != sizeof(pid_thread))
+		return NULL;
+
+	if (read_nointr(ipc_socket, &pid_thread, sizeof(pid_thread)) != sizeof(pid_thread))
+		return NULL;
+
+	close(ipc_socket);
+
+	sys_execveat(AT_FDCWD, "pidfd_exec_helper", NULL, NULL, 0);
+	return NULL;
+}
+
+TEST_F(pidfd_info, thread_group_exec_thread)
+{
+	pid_t pid_leader, pid_poller, pid_thread;
+	pthread_t thread;
+	int nevents, pidfd_leader, pidfd_leader_thread, pidfd_thread, ret;
+	int ipc_sockets[2];
+	struct pollfd fds = {};
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT,
+	};
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	pid_leader = create_child(&pidfd_leader, 0);
+	EXPECT_GE(pid_leader, 0);
+
+	if (pid_leader == 0) {
+		close(ipc_sockets[0]);
+
+		/* The thread will outlive the thread-group leader. */
+		if (pthread_create(&thread, NULL, pidfd_info_thread_exec_sane, &ipc_sockets[1]))
+			syscall(__NR_exit, EXIT_FAILURE);
+
+		/*
+		 * Pause the thread-group leader. It will be killed once
+		 * the subthread execs.
+		 */
+		pause();
+		syscall(__NR_exit, EXIT_SUCCESS);
+	}
+
+	/* Retrieve the tid of the thread. */
+	EXPECT_EQ(close(ipc_sockets[1]), 0);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &pid_thread, sizeof(pid_thread)), sizeof(pid_thread));
+
+	/* Opening a thread as a PIDFD_THREAD must succeed. */
+	pidfd_thread = sys_pidfd_open(pid_thread, PIDFD_THREAD);
+	ASSERT_GE(pidfd_thread, 0);
+
+	/* Open a thread-specific pidfd for the thread-group leader. */
+	pidfd_leader_thread = sys_pidfd_open(pid_leader, PIDFD_THREAD);
+	ASSERT_GE(pidfd_leader_thread, 0);
+
+	pid_poller = fork();
+	ASSERT_GE(pid_poller, 0);
+	if (pid_poller == 0) {
+		/*
+		 * The subthread will now exec. The struct pid of the old
+		 * thread-group leader will be assumed by the subthread which
+		 * becomes the new thread-group leader. So no exit notification
+		 * must be generated. Wait for 5 seconds and call it a success
+		 * if no notification has been received.
+		 */
+		fds.events = POLLIN;
+		fds.fd = pidfd_leader_thread;
+		nevents = poll(&fds, 1, 10000 /* wait 5 seconds */);
+		if (nevents != 0)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLIN)
+			_exit(EXIT_FAILURE);
+		if (fds.revents & POLLHUP)
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	/* Now that we've opened a thread-specific pidfd the thread can exec. */
+	ASSERT_EQ(write_nointr(ipc_sockets[0], &pid_thread, sizeof(pid_thread)), sizeof(pid_thread));
+	EXPECT_EQ(close(ipc_sockets[0]), 0);
+	ASSERT_EQ(wait_for_pid(pid_poller), 0);
+
+	/* Wait until the kernel has SIGKILLed the thread. */
+	fds.events = POLLHUP;
+	fds.fd = pidfd_thread;
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	/* The thread has been reaped. */
+	ASSERT_TRUE(!!(fds.revents & POLLHUP));
+
+	/* Retrieve thread-specific exit info from pidfd. */
+	ASSERT_EQ(ioctl(pidfd_thread, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+	/*
+	 * While the kernel will have SIGKILLed the whole thread-group
+	 * during exec it will cause the individual threads to exit
+	 * cleanly.
+	 */
+	ASSERT_TRUE(WIFEXITED(info.exit_code));
+	ASSERT_EQ(WEXITSTATUS(info.exit_code), 0);
+
+	/*
+	 * The thread-group leader is still alive, the thread has taken
+	 * over its struct pid and thus its pid number.
+	 */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_EXIT));
+	ASSERT_EQ(info.pid, pid_leader);
+
+	/* Take down the thread-group leader. */
+	EXPECT_EQ(sys_pidfd_send_signal(pidfd_leader, SIGKILL, NULL, 0), 0);
+
+	/*
+	 * Afte the exec we're dealing with an empty thread-group so now
+	 * we must see an exit notification on the thread-specific pidfd
+	 * for the thread-group leader as there's no subthread that can
+	 * revive the struct pid.
+	 */
+	fds.events = POLLIN;
+	fds.fd = pidfd_leader_thread;
+	nevents = poll(&fds, 1, -1);
+	ASSERT_EQ(nevents, 1);
+	ASSERT_TRUE(!!(fds.revents & POLLIN));
+	ASSERT_FALSE(!!(fds.revents & POLLHUP));
+
+	EXPECT_EQ(sys_waitid(P_PIDFD, pidfd_leader, NULL, WEXITED), 0);
+
+	/* Retrieve exit information for the thread-group leader. */
+	info.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_EXIT;
+	ASSERT_EQ(ioctl(pidfd_leader, PIDFD_GET_INFO, &info), 0);
+	ASSERT_FALSE(!!(info.mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_EXIT));
+
+	EXPECT_EQ(close(pidfd_leader), 0);
+	EXPECT_EQ(close(pidfd_thread), 0);
+}
+
+/*
+ * Test: PIDFD_INFO_SUPPORTED_MASK field
+ *
+ * Verify that when PIDFD_INFO_SUPPORTED_MASK is requested, the kernel
+ * returns the supported_mask field indicating which flags the kernel supports.
+ */
+TEST(supported_mask_field)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_SUPPORTED_MASK,
+	};
+	int pidfd;
+	pid_t pid;
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		pause();
+
+	/* Request supported_mask field */
+	ASSERT_EQ(ioctl(pidfd, PIDFD_GET_INFO, &info), 0);
+
+	/* Verify PIDFD_INFO_SUPPORTED_MASK is set in the reply */
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_SUPPORTED_MASK));
+
+	/* Verify supported_mask contains expected flags */
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_PID));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_CREDS));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_CGROUPID));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_EXIT));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_COREDUMP));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_SUPPORTED_MASK));
+	ASSERT_TRUE(!!(info.supported_mask & PIDFD_INFO_COREDUMP_SIGNAL));
+
+	/* Clean up */
+	sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0);
+	sys_waitid(P_PIDFD, pidfd, NULL, WEXITED);
+	close(pidfd);
+}
+
+/*
+ * Test: PIDFD_INFO_SUPPORTED_MASK always available
+ *
+ * Verify that supported_mask is returned even when other fields are requested.
+ */
+TEST(supported_mask_with_other_fields)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID | PIDFD_INFO_SUPPORTED_MASK,
+	};
+	int pidfd;
+	pid_t pid;
+
+	pid = create_child(&pidfd, 0);
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		pause();
+
+	ASSERT_EQ(ioctl(pidfd, PIDFD_GET_INFO, &info), 0);
+
+	/* Both fields should be present */
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_CGROUPID));
+	ASSERT_TRUE(!!(info.mask & PIDFD_INFO_SUPPORTED_MASK));
+	ASSERT_NE(info.supported_mask, 0);
+
+	/* Clean up */
+	sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0);
+	sys_waitid(P_PIDFD, pidfd, NULL, WEXITED);
+	close(pidfd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_open_test.c b/tools/testing/selftests/pidfd/pidfd_open_test.c
new file mode 100644
index 000000000000..318e6f09c8e0
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_open_test.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "pidfd.h"
+#include "kselftest.h"
+
+static int safe_int(const char *numstr, int *converted)
+{
+	char *err = NULL;
+	long sli;
+
+	errno = 0;
+	sli = strtol(numstr, &err, 0);
+	if (errno == ERANGE && (sli == LONG_MAX || sli == LONG_MIN))
+		return -ERANGE;
+
+	if (errno != 0 && sli == 0)
+		return -EINVAL;
+
+	if (err == numstr || *err != '\0')
+		return -EINVAL;
+
+	if (sli > INT_MAX || sli < INT_MIN)
+		return -ERANGE;
+
+	*converted = (int)sli;
+	return 0;
+}
+
+static int char_left_gc(const char *buffer, size_t len)
+{
+	size_t i;
+
+	for (i = 0; i < len; i++) {
+		if (buffer[i] == ' ' ||
+		    buffer[i] == '\t')
+			continue;
+
+		return i;
+	}
+
+	return 0;
+}
+
+static int char_right_gc(const char *buffer, size_t len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0; i--) {
+		if (buffer[i] == ' '  ||
+		    buffer[i] == '\t' ||
+		    buffer[i] == '\n' ||
+		    buffer[i] == '\0')
+			continue;
+
+		return i + 1;
+	}
+
+	return 0;
+}
+
+static char *trim_whitespace_in_place(char *buffer)
+{
+	buffer += char_left_gc(buffer, strlen(buffer));
+	buffer[char_right_gc(buffer, strlen(buffer))] = '\0';
+	return buffer;
+}
+
+static pid_t get_pid_from_fdinfo_file(int pidfd, const char *key, size_t keylen)
+{
+	int ret;
+	char path[512];
+	FILE *f;
+	size_t n = 0;
+	pid_t result = -1;
+	char *line = NULL;
+
+	snprintf(path, sizeof(path), "/proc/self/fdinfo/%d", pidfd);
+
+	f = fopen(path, "re");
+	if (!f)
+		return -1;
+
+	while (getline(&line, &n, f) != -1) {
+		char *numstr;
+
+		if (strncmp(line, key, keylen))
+			continue;
+
+		numstr = trim_whitespace_in_place(line + 4);
+		ret = safe_int(numstr, &result);
+		if (ret < 0)
+			goto out;
+
+		break;
+	}
+
+out:
+	free(line);
+	fclose(f);
+	return result;
+}
+
+int main(int argc, char **argv)
+{
+	struct pidfd_info info = {
+		.mask = PIDFD_INFO_CGROUPID,
+	};
+	int pidfd = -1, ret = 1;
+	pid_t pid;
+
+	ksft_set_plan(4);
+
+	pidfd = sys_pidfd_open(-1, 0);
+	if (pidfd >= 0) {
+		ksft_print_msg(
+			"%s - succeeded to open pidfd for invalid pid -1\n",
+			strerror(errno));
+		goto on_error;
+	}
+	ksft_test_result_pass("do not allow invalid pid test: passed\n");
+
+	pidfd = sys_pidfd_open(getpid(), 1);
+	if (pidfd >= 0) {
+		ksft_print_msg(
+			"%s - succeeded to open pidfd with invalid flag value specified\n",
+			strerror(errno));
+		goto on_error;
+	}
+	ksft_test_result_pass("do not allow invalid flag test: passed\n");
+
+	pidfd = sys_pidfd_open(getpid(), 0);
+	if (pidfd < 0) {
+		ksft_print_msg("%s - failed to open pidfd\n", strerror(errno));
+		goto on_error;
+	}
+	ksft_test_result_pass("open a new pidfd test: passed\n");
+
+	pid = get_pid_from_fdinfo_file(pidfd, "Pid:", sizeof("Pid:") - 1);
+	ksft_print_msg("pidfd %d refers to process with pid %d\n", pidfd, pid);
+
+	if (ioctl(pidfd, PIDFD_GET_INFO, &info) < 0) {
+		ksft_print_msg("%s - failed to get info from pidfd\n", strerror(errno));
+		goto on_error;
+	}
+	if (info.pid != pid) {
+		ksft_print_msg("pid from fdinfo file %d does not match pid from ioctl %d\n",
+			       pid, info.pid);
+		goto on_error;
+	}
+	if (info.ppid != getppid()) {
+		ksft_print_msg("ppid %d does not match ppid from ioctl %d\n",
+			       pid, info.pid);
+		goto on_error;
+	}
+	if (info.ruid != getuid()) {
+		ksft_print_msg("uid %d does not match uid from ioctl %d\n",
+			       getuid(), info.ruid);
+		goto on_error;
+	}
+	if (info.rgid != getgid()) {
+		ksft_print_msg("gid %d does not match gid from ioctl %d\n",
+			       getgid(), info.rgid);
+		goto on_error;
+	}
+	if (info.euid != geteuid()) {
+		ksft_print_msg("euid %d does not match euid from ioctl %d\n",
+			       geteuid(), info.euid);
+		goto on_error;
+	}
+	if (info.egid != getegid()) {
+		ksft_print_msg("egid %d does not match egid from ioctl %d\n",
+			       getegid(), info.egid);
+		goto on_error;
+	}
+	if (info.suid != geteuid()) {
+		ksft_print_msg("suid %d does not match suid from ioctl %d\n",
+			       geteuid(), info.suid);
+		goto on_error;
+	}
+	if (info.sgid != getegid()) {
+		ksft_print_msg("sgid %d does not match sgid from ioctl %d\n",
+			       getegid(), info.sgid);
+		goto on_error;
+	}
+	if ((info.mask & PIDFD_INFO_CGROUPID) && info.cgroupid == 0) {
+		ksft_print_msg("cgroupid should not be 0 when PIDFD_INFO_CGROUPID is set\n");
+		goto on_error;
+	}
+	ksft_test_result_pass("get info from pidfd test: passed\n");
+
+	ret = 0;
+
+on_error:
+	if (pidfd >= 0)
+		close(pidfd);
+
+	if (ret)
+		ksft_exit_fail();
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/pidfd/pidfd_poll_test.c b/tools/testing/selftests/pidfd/pidfd_poll_test.c
new file mode 100644
index 000000000000..232304f818c7
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_poll_test.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "pidfd.h"
+#include "kselftest.h"
+
+static bool timeout;
+
+static void handle_alarm(int sig)
+{
+	timeout = true;
+}
+
+int main(int argc, char **argv)
+{
+	struct pollfd fds;
+	int iter, nevents;
+	int nr_iterations = 10000;
+
+	fds.events = POLLIN;
+
+	if (argc > 2)
+		ksft_exit_fail_msg("Unexpected command line argument\n");
+
+	if (argc == 2) {
+		nr_iterations = atoi(argv[1]);
+		if (nr_iterations <= 0)
+			ksft_exit_fail_msg("invalid input parameter %s\n",
+					argv[1]);
+	}
+
+	ksft_print_msg("running pidfd poll test for %d iterations\n",
+		nr_iterations);
+
+	for (iter = 0; iter < nr_iterations; iter++) {
+		int pidfd;
+		int child_pid = fork();
+
+		if (child_pid < 0) {
+			if (errno == EAGAIN) {
+				iter--;
+				continue;
+			}
+			ksft_exit_fail_msg(
+				"%s - failed to fork a child process\n",
+				strerror(errno));
+		}
+
+		if (child_pid == 0) {
+			/* Child process just sleeps for a min and exits */
+			sleep(60);
+			exit(EXIT_SUCCESS);
+		}
+
+		/* Parent kills the child and waits for its death */
+		pidfd = sys_pidfd_open(child_pid, 0);
+		if (pidfd < 0)
+			ksft_exit_fail_msg("%s - pidfd_open failed\n",
+					strerror(errno));
+
+		/* Setup 3 sec alarm - plenty of time */
+		if (signal(SIGALRM, handle_alarm) == SIG_ERR)
+			ksft_exit_fail_msg("%s - signal failed\n",
+					strerror(errno));
+		alarm(3);
+
+		/* Send SIGKILL to the child */
+		if (sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0))
+			ksft_exit_fail_msg("%s - pidfd_send_signal failed\n",
+					strerror(errno));
+
+		/* Wait for the death notification */
+		fds.fd = pidfd;
+		nevents = poll(&fds, 1, -1);
+
+		/* Check for error conditions */
+		if (nevents < 0)
+			ksft_exit_fail_msg("%s - poll failed\n",
+					strerror(errno));
+
+		if (nevents != 1)
+			ksft_exit_fail_msg("unexpected poll result: %d\n",
+					nevents);
+
+		if (!(fds.revents & POLLIN))
+			ksft_exit_fail_msg(
+				"unexpected event type received: 0x%x\n",
+				fds.revents);
+
+		if (timeout)
+			ksft_exit_fail_msg(
+				"death notification wait timeout\n");
+
+		close(pidfd);
+		/* Wait for child to prevent zombies */
+		if (waitpid(child_pid, NULL, 0) < 0)
+			ksft_exit_fail_msg("%s - waitpid failed\n",
+					strerror(errno));
+
+	}
+
+	ksft_test_result_pass("pidfd poll test: pass\n");
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/pidfd/pidfd_setattr_test.c b/tools/testing/selftests/pidfd/pidfd_setattr_test.c
new file mode 100644
index 000000000000..e8562a2992f3
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_setattr_test.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/kcmp.h>
+#include <sys/stat.h>
+#include <sys/xattr.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+FIXTURE(pidfs_setattr)
+{
+	pid_t child_pid;
+	int child_pidfd;
+};
+
+FIXTURE_SETUP(pidfs_setattr)
+{
+	self->child_pid = create_child(&self->child_pidfd, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid, 0);
+
+	if (self->child_pid == 0)
+		_exit(EXIT_SUCCESS);
+}
+
+FIXTURE_TEARDOWN(pidfs_setattr)
+{
+	sys_waitid(P_PID, self->child_pid, NULL, WEXITED);
+	EXPECT_EQ(close(self->child_pidfd), 0);
+}
+
+TEST_F(pidfs_setattr, no_chown)
+{
+	ASSERT_LT(fchown(self->child_pidfd, 1234, 5678), 0);
+	ASSERT_EQ(errno, EOPNOTSUPP);
+}
+
+TEST_F(pidfs_setattr, no_chmod)
+{
+	ASSERT_LT(fchmod(self->child_pidfd, 0777), 0);
+	ASSERT_EQ(errno, EOPNOTSUPP);
+}
+
+TEST_F(pidfs_setattr, no_exec)
+{
+	char *const argv[] = { NULL };
+	char *const envp[] = { NULL };
+
+	ASSERT_LT(execveat(self->child_pidfd, "", argv, envp, AT_EMPTY_PATH), 0);
+	ASSERT_EQ(errno, EACCES);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_setns_test.c b/tools/testing/selftests/pidfd/pidfd_setns_test.c
new file mode 100644
index 000000000000..107edecff224
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_setns_test.c
@@ -0,0 +1,671 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+enum {
+	PIDFD_NS_USER,
+	PIDFD_NS_MNT,
+	PIDFD_NS_PID,
+	PIDFD_NS_UTS,
+	PIDFD_NS_IPC,
+	PIDFD_NS_NET,
+	PIDFD_NS_CGROUP,
+	PIDFD_NS_PIDCLD,
+	PIDFD_NS_TIME,
+	PIDFD_NS_TIMECLD,
+	PIDFD_NS_MAX
+};
+
+const struct ns_info {
+	const char *name;
+	int flag;
+	unsigned int pidfd_ioctl;
+} ns_info[] = {
+	[PIDFD_NS_USER]    = { "user",              CLONE_NEWUSER,   PIDFD_GET_USER_NAMESPACE,              },
+	[PIDFD_NS_MNT]     = { "mnt",               CLONE_NEWNS,     PIDFD_GET_MNT_NAMESPACE,               },
+	[PIDFD_NS_PID]     = { "pid",               CLONE_NEWPID,    PIDFD_GET_PID_NAMESPACE,               },
+	[PIDFD_NS_UTS]     = { "uts",               CLONE_NEWUTS,    PIDFD_GET_UTS_NAMESPACE,               },
+	[PIDFD_NS_IPC]     = { "ipc",               CLONE_NEWIPC,    PIDFD_GET_IPC_NAMESPACE,               },
+	[PIDFD_NS_NET]     = { "net",               CLONE_NEWNET,    PIDFD_GET_NET_NAMESPACE,               },
+	[PIDFD_NS_CGROUP]  = { "cgroup",            CLONE_NEWCGROUP, PIDFD_GET_CGROUP_NAMESPACE,            },
+	[PIDFD_NS_TIME]	   = { "time",              CLONE_NEWTIME,   PIDFD_GET_TIME_NAMESPACE,              },
+	[PIDFD_NS_PIDCLD]  = { "pid_for_children",  0,               PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE,  },
+	[PIDFD_NS_TIMECLD] = { "time_for_children", 0,               PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE, },
+};
+
+FIXTURE(current_nsset)
+{
+	pid_t pid;
+	int pidfd;
+	int nsfds[PIDFD_NS_MAX];
+	int child_pidfd_derived_nsfds[PIDFD_NS_MAX];
+
+	pid_t child_pid_exited;
+	int child_pidfd_exited;
+
+	pid_t child_pid1;
+	int child_pidfd1;
+	int child_nsfds1[PIDFD_NS_MAX];
+	int child_pidfd_derived_nsfds1[PIDFD_NS_MAX];
+
+	pid_t child_pid2;
+	int child_pidfd2;
+	int child_nsfds2[PIDFD_NS_MAX];
+	int child_pidfd_derived_nsfds2[PIDFD_NS_MAX];
+};
+
+static bool switch_timens(void)
+{
+	int fd, ret;
+
+	if (unshare(CLONE_NEWTIME))
+		return false;
+
+	fd = open("/proc/self/ns/time_for_children", O_RDONLY | O_CLOEXEC);
+	if (fd < 0)
+		return false;
+
+	ret = setns(fd, CLONE_NEWTIME);
+	close(fd);
+	return ret == 0;
+}
+
+FIXTURE_SETUP(current_nsset)
+{
+	int i, proc_fd, ret;
+	int ipc_sockets[2];
+	char c;
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		self->nsfds[i]				= -EBADF;
+		self->child_nsfds1[i]			= -EBADF;
+		self->child_nsfds2[i]			= -EBADF;
+		self->child_pidfd_derived_nsfds[i]	= -EBADF;
+		self->child_pidfd_derived_nsfds1[i]	= -EBADF;
+		self->child_pidfd_derived_nsfds2[i]	= -EBADF;
+	}
+
+	proc_fd = open("/proc/self/ns", O_DIRECTORY | O_CLOEXEC);
+	ASSERT_GE(proc_fd, 0) {
+		TH_LOG("%m - Failed to open /proc/self/ns");
+	}
+
+	self->pid = getpid();
+	self->pidfd = sys_pidfd_open(self->pid, 0);
+	EXPECT_GT(self->pidfd, 0) {
+		TH_LOG("%m - Failed to open pidfd for process %d", self->pid);
+	}
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		self->nsfds[i] = openat(proc_fd, info->name, O_RDONLY | O_CLOEXEC);
+		if (self->nsfds[i] < 0) {
+			EXPECT_EQ(errno, ENOENT) {
+				TH_LOG("%m - Failed to open %s namespace for process %d",
+				       info->name, self->pid);
+			}
+		}
+
+		self->child_pidfd_derived_nsfds[i] = ioctl(self->pidfd, info->pidfd_ioctl, 0);
+		if (self->child_pidfd_derived_nsfds[i] < 0) {
+			EXPECT_EQ(errno, EOPNOTSUPP) {
+				TH_LOG("%m - Failed to derive %s namespace from pidfd of process %d",
+				       info->name, self->pid);
+			}
+		}
+	}
+
+	/* Create task that exits right away. */
+	self->child_pid_exited = create_child(&self->child_pidfd_exited, 0);
+	EXPECT_GE(self->child_pid_exited, 0);
+
+	if (self->child_pid_exited == 0) {
+		if (self->nsfds[PIDFD_NS_USER] >= 0 && unshare(CLONE_NEWUSER) < 0)
+			_exit(EXIT_FAILURE);
+		if (self->nsfds[PIDFD_NS_NET] >= 0 && unshare(CLONE_NEWNET) < 0)
+			_exit(EXIT_FAILURE);
+		_exit(EXIT_SUCCESS);
+	}
+
+	ASSERT_EQ(sys_waitid(P_PID, self->child_pid_exited, NULL, WEXITED | WNOWAIT), 0);
+
+	self->pidfd = sys_pidfd_open(self->pid, 0);
+	EXPECT_GE(self->pidfd, 0) {
+		TH_LOG("%m - Failed to open pidfd for process %d", self->pid);
+	}
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	/* Create tasks that will be stopped. */
+	if (self->nsfds[PIDFD_NS_USER] >= 0 && self->nsfds[PIDFD_NS_PID] >= 0)
+		self->child_pid1 = create_child(&self->child_pidfd1, CLONE_NEWUSER | CLONE_NEWPID);
+	else if (self->nsfds[PIDFD_NS_PID] >= 0)
+		self->child_pid1 = create_child(&self->child_pidfd1, CLONE_NEWPID);
+	else if (self->nsfds[PIDFD_NS_USER] >= 0)
+		self->child_pid1 = create_child(&self->child_pidfd1, CLONE_NEWUSER);
+	else
+		self->child_pid1 = create_child(&self->child_pidfd1, 0);
+	EXPECT_GE(self->child_pid1, 0);
+
+	if (self->child_pid1 == 0) {
+		close(ipc_sockets[0]);
+
+		if (self->nsfds[PIDFD_NS_MNT] >= 0 && unshare(CLONE_NEWNS) < 0) {
+			TH_LOG("%m - Failed to unshare mount namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_CGROUP] >= 0 && unshare(CLONE_NEWCGROUP) < 0) {
+			TH_LOG("%m - Failed to unshare cgroup namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_IPC] >= 0 && unshare(CLONE_NEWIPC) < 0) {
+			TH_LOG("%m - Failed to unshare ipc namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_UTS] >= 0 && unshare(CLONE_NEWUTS) < 0) {
+			TH_LOG("%m - Failed to unshare uts namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_NET] >= 0 && unshare(CLONE_NEWNET) < 0) {
+			TH_LOG("%m - Failed to unshare net namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_TIME] >= 0 && !switch_timens()) {
+			TH_LOG("%m - Failed to unshare time namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(ipc_sockets[1]);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	close(ipc_sockets[0]);
+
+	ret = socketpair(AF_LOCAL, SOCK_STREAM | SOCK_CLOEXEC, 0, ipc_sockets);
+	EXPECT_EQ(ret, 0);
+
+	if (self->nsfds[PIDFD_NS_USER] >= 0 && self->nsfds[PIDFD_NS_PID] >= 0)
+		self->child_pid2 = create_child(&self->child_pidfd2, CLONE_NEWUSER | CLONE_NEWPID);
+	else if (self->nsfds[PIDFD_NS_PID] >= 0)
+		self->child_pid2 = create_child(&self->child_pidfd2, CLONE_NEWPID);
+	else if (self->nsfds[PIDFD_NS_USER] >= 0)
+		self->child_pid2 = create_child(&self->child_pidfd2, CLONE_NEWUSER);
+	else
+		self->child_pid2 = create_child(&self->child_pidfd2, 0);
+	EXPECT_GE(self->child_pid2, 0);
+
+	if (self->child_pid2 == 0) {
+		close(ipc_sockets[0]);
+
+		if (self->nsfds[PIDFD_NS_MNT] >= 0 && unshare(CLONE_NEWNS) < 0) {
+			TH_LOG("%m - Failed to unshare mount namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_CGROUP] >= 0 && unshare(CLONE_NEWCGROUP) < 0) {
+			TH_LOG("%m - Failed to unshare cgroup namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_IPC] >= 0 && unshare(CLONE_NEWIPC) < 0) {
+			TH_LOG("%m - Failed to unshare ipc namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_UTS] >= 0 && unshare(CLONE_NEWUTS) < 0) {
+			TH_LOG("%m - Failed to unshare uts namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_NET] >= 0 && unshare(CLONE_NEWNET) < 0) {
+			TH_LOG("%m - Failed to unshare net namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+		if (self->nsfds[PIDFD_NS_TIME] >= 0 && !switch_timens()) {
+			TH_LOG("%m - Failed to unshare time namespace for process %d", self->pid);
+			_exit(EXIT_FAILURE);
+		}
+
+		if (write_nointr(ipc_sockets[1], "1", 1) < 0)
+			_exit(EXIT_FAILURE);
+
+		close(ipc_sockets[1]);
+
+		pause();
+		_exit(EXIT_SUCCESS);
+	}
+
+	close(ipc_sockets[1]);
+	ASSERT_EQ(read_nointr(ipc_sockets[0], &c, 1), 1);
+	close(ipc_sockets[0]);
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		char p[100];
+
+		const struct ns_info *info = &ns_info[i];
+
+		self->nsfds[i] = openat(proc_fd, info->name, O_RDONLY | O_CLOEXEC);
+		if (self->nsfds[i] < 0) {
+			EXPECT_EQ(errno, ENOENT) {
+				TH_LOG("%m - Failed to open %s namespace for process %d",
+				       info->name, self->pid);
+			}
+		}
+
+		ret = snprintf(p, sizeof(p), "/proc/%d/ns/%s",
+			       self->child_pid1, info->name);
+		EXPECT_GT(ret, 0);
+		EXPECT_LT(ret, sizeof(p));
+
+		self->child_nsfds1[i] = open(p, O_RDONLY | O_CLOEXEC);
+		if (self->child_nsfds1[i] < 0) {
+			EXPECT_EQ(errno, ENOENT) {
+				TH_LOG("%m - Failed to open %s namespace for process %d",
+				       info->name, self->child_pid1);
+			}
+		}
+
+		ret = snprintf(p, sizeof(p), "/proc/%d/ns/%s",
+			       self->child_pid2, info->name);
+		EXPECT_GT(ret, 0);
+		EXPECT_LT(ret, sizeof(p));
+
+		self->child_nsfds2[i] = open(p, O_RDONLY | O_CLOEXEC);
+		if (self->child_nsfds2[i] < 0) {
+			EXPECT_EQ(errno, ENOENT) {
+				TH_LOG("%m - Failed to open %s namespace for process %d",
+				       info->name, self->child_pid1);
+			}
+		}
+
+		self->child_pidfd_derived_nsfds1[i] = ioctl(self->child_pidfd1, info->pidfd_ioctl, 0);
+		if (self->child_pidfd_derived_nsfds1[i] < 0) {
+			EXPECT_EQ(errno, EOPNOTSUPP) {
+				TH_LOG("%m - Failed to derive %s namespace from pidfd of process %d",
+				       info->name, self->child_pid1);
+			}
+		}
+
+		self->child_pidfd_derived_nsfds2[i] = ioctl(self->child_pidfd2, info->pidfd_ioctl, 0);
+		if (self->child_pidfd_derived_nsfds2[i] < 0) {
+			EXPECT_EQ(errno, EOPNOTSUPP) {
+				TH_LOG("%m - Failed to derive %s namespace from pidfd of process %d",
+				       info->name, self->child_pid2);
+			}
+		}
+	}
+
+	close(proc_fd);
+}
+
+FIXTURE_TEARDOWN(current_nsset)
+{
+	int i;
+
+	ASSERT_EQ(sys_pidfd_send_signal(self->child_pidfd1,
+					SIGKILL, NULL, 0), 0);
+	ASSERT_EQ(sys_pidfd_send_signal(self->child_pidfd2,
+					SIGKILL, NULL, 0), 0);
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		if (self->nsfds[i] >= 0)
+			close(self->nsfds[i]);
+		if (self->child_nsfds1[i] >= 0)
+			close(self->child_nsfds1[i]);
+		if (self->child_nsfds2[i] >= 0)
+			close(self->child_nsfds2[i]);
+		if (self->child_pidfd_derived_nsfds[i] >= 0)
+			close(self->child_pidfd_derived_nsfds[i]);
+		if (self->child_pidfd_derived_nsfds1[i] >= 0)
+			close(self->child_pidfd_derived_nsfds1[i]);
+		if (self->child_pidfd_derived_nsfds2[i] >= 0)
+			close(self->child_pidfd_derived_nsfds2[i]);
+	}
+
+	if (self->child_pidfd1 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd1));
+	if (self->child_pidfd2 >= 0)
+		EXPECT_EQ(0, close(self->child_pidfd2));
+	ASSERT_EQ(sys_waitid(P_PID, self->child_pid_exited, NULL, WEXITED), 0);
+	ASSERT_EQ(sys_waitid(P_PID, self->child_pid1, NULL, WEXITED), 0);
+	ASSERT_EQ(sys_waitid(P_PID, self->child_pid2, NULL, WEXITED), 0);
+}
+
+static int preserve_ns(const int pid, const char *ns)
+{
+	int ret;
+	char path[50];
+
+	ret = snprintf(path, sizeof(path), "/proc/%d/ns/%s", pid, ns);
+	if (ret < 0 || (size_t)ret >= sizeof(path))
+		return -EIO;
+
+	return open(path, O_RDONLY | O_CLOEXEC);
+}
+
+static int in_same_namespace(int ns_fd1, pid_t pid2, const char *ns)
+{
+	int ns_fd2 = -EBADF;
+	int ret = -1;
+	struct stat ns_st1, ns_st2;
+
+	ret = fstat(ns_fd1, &ns_st1);
+	if (ret < 0)
+		return -1;
+
+	ns_fd2 = preserve_ns(pid2, ns);
+	if (ns_fd2 < 0)
+		return -1;
+
+	ret = fstat(ns_fd2, &ns_st2);
+	close(ns_fd2);
+	if (ret < 0)
+		return -1;
+
+	/* processes are in the same namespace */
+	if ((ns_st1.st_dev == ns_st2.st_dev) &&
+	    (ns_st1.st_ino == ns_st2.st_ino))
+		return 1;
+
+	/* processes are in different namespaces */
+	return 0;
+}
+
+/* Test that we can't pass garbage to the kernel. */
+TEST_F(current_nsset, invalid_flags)
+{
+	ASSERT_NE(setns(self->pidfd, 0), 0);
+	EXPECT_EQ(errno, EINVAL);
+
+	ASSERT_NE(setns(self->pidfd, -1), 0);
+	EXPECT_EQ(errno, EINVAL);
+
+	ASSERT_NE(setns(self->pidfd, CLONE_VM), 0);
+	EXPECT_EQ(errno, EINVAL);
+
+	ASSERT_NE(setns(self->pidfd, CLONE_NEWUSER | CLONE_VM), 0);
+	EXPECT_EQ(errno, EINVAL);
+}
+
+/* Test that we can't attach to a task that has already exited. */
+TEST_F(current_nsset, pidfd_exited_child)
+{
+	int i;
+	pid_t pid;
+
+	ASSERT_NE(setns(self->child_pidfd_exited, CLONE_NEWUSER | CLONE_NEWNET),
+		  0);
+	EXPECT_EQ(errno, ESRCH);
+
+	pid = getpid();
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		/* Verify that we haven't changed any namespaces. */
+		if (self->nsfds[i] >= 0)
+			ASSERT_EQ(in_same_namespace(self->nsfds[i], pid, info->name), 1);
+	}
+}
+
+TEST_F(current_nsset, pidfd_incremental_setns)
+{
+	int i;
+	pid_t pid;
+
+	pid = getpid();
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		int nsfd;
+
+		if (self->child_nsfds1[i] < 0)
+			continue;
+
+		if (info->flag) {
+			ASSERT_EQ(setns(self->child_pidfd1, info->flag), 0) {
+				TH_LOG("%m - Failed to setns to %s namespace of %d via pidfd %d",
+				       info->name, self->child_pid1,
+				       self->child_pidfd1);
+			}
+		}
+
+		/* Verify that we have changed to the correct namespaces. */
+		if (info->flag == CLONE_NEWPID)
+			nsfd = self->nsfds[i];
+		else
+			nsfd = self->child_nsfds1[i];
+		ASSERT_EQ(in_same_namespace(nsfd, pid, info->name), 1) {
+			TH_LOG("setns failed to place us correctly into %s namespace of %d via pidfd %d",
+			       info->name, self->child_pid1,
+			       self->child_pidfd1);
+		}
+		TH_LOG("Managed to correctly setns to %s namespace of %d via pidfd %d",
+		       info->name, self->child_pid1, self->child_pidfd1);
+	}
+}
+
+TEST_F(current_nsset, nsfd_incremental_setns)
+{
+	int i;
+	pid_t pid;
+
+	pid = getpid();
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		int nsfd;
+
+		if (self->child_nsfds1[i] < 0)
+			continue;
+
+		if (info->flag) {
+			ASSERT_EQ(setns(self->child_nsfds1[i], info->flag), 0) {
+				TH_LOG("%m - Failed to setns to %s namespace of %d via nsfd %d",
+				       info->name, self->child_pid1,
+				       self->child_nsfds1[i]);
+			}
+		}
+
+		/* Verify that we have changed to the correct namespaces. */
+		if (info->flag == CLONE_NEWPID)
+			nsfd = self->nsfds[i];
+		else
+			nsfd = self->child_nsfds1[i];
+		ASSERT_EQ(in_same_namespace(nsfd, pid, info->name), 1) {
+			TH_LOG("setns failed to place us correctly into %s namespace of %d via nsfd %d",
+			       info->name, self->child_pid1,
+			       self->child_nsfds1[i]);
+		}
+		TH_LOG("Managed to correctly setns to %s namespace of %d via nsfd %d",
+		       info->name, self->child_pid1, self->child_nsfds1[i]);
+	}
+}
+
+TEST_F(current_nsset, pidfd_derived_nsfd_incremental_setns)
+{
+	int i;
+	pid_t pid;
+
+	pid = getpid();
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		int nsfd;
+
+		if (self->child_pidfd_derived_nsfds1[i] < 0)
+			continue;
+
+		if (info->flag) {
+			ASSERT_EQ(setns(self->child_pidfd_derived_nsfds1[i], info->flag), 0) {
+				TH_LOG("%m - Failed to setns to %s namespace of %d via nsfd %d",
+				       info->name, self->child_pid1,
+				       self->child_pidfd_derived_nsfds1[i]);
+			}
+		}
+
+		/* Verify that we have changed to the correct namespaces. */
+		if (info->flag == CLONE_NEWPID)
+			nsfd = self->child_pidfd_derived_nsfds[i];
+		else
+			nsfd = self->child_pidfd_derived_nsfds1[i];
+		ASSERT_EQ(in_same_namespace(nsfd, pid, info->name), 1) {
+			TH_LOG("setns failed to place us correctly into %s namespace of %d via nsfd %d",
+			       info->name, self->child_pid1,
+			       self->child_pidfd_derived_nsfds1[i]);
+		}
+		TH_LOG("Managed to correctly setns to %s namespace of %d via nsfd %d",
+		       info->name, self->child_pid1, self->child_pidfd_derived_nsfds1[i]);
+	}
+}
+
+TEST_F(current_nsset, pidfd_one_shot_setns)
+{
+	unsigned flags = 0;
+	int i;
+	pid_t pid;
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+
+		if (self->child_nsfds1[i] < 0)
+			continue;
+
+		flags |= info->flag;
+		TH_LOG("Adding %s namespace of %d to list of namespaces to attach to",
+		       info->name, self->child_pid1);
+	}
+
+	ASSERT_EQ(setns(self->child_pidfd1, flags), 0) {
+		TH_LOG("%m - Failed to setns to namespaces of %d",
+		       self->child_pid1);
+	}
+
+	pid = getpid();
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+		int nsfd;
+
+		if (self->child_nsfds1[i] < 0)
+			continue;
+
+		/* Verify that we have changed to the correct namespaces. */
+		if (info->flag == CLONE_NEWPID)
+			nsfd = self->nsfds[i];
+		else
+			nsfd = self->child_nsfds1[i];
+		ASSERT_EQ(in_same_namespace(nsfd, pid, info->name), 1) {
+			TH_LOG("setns failed to place us correctly into %s namespace of %d",
+			       info->name, self->child_pid1);
+		}
+		TH_LOG("Managed to correctly setns to %s namespace of %d",
+		       info->name, self->child_pid1);
+	}
+}
+
+TEST_F(current_nsset, no_foul_play)
+{
+	unsigned flags = 0;
+	int i;
+
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+
+		if (self->child_nsfds1[i] < 0)
+			continue;
+
+		flags |= info->flag;
+		if (info->flag) /* No use logging pid_for_children. */
+			TH_LOG("Adding %s namespace of %d to list of namespaces to attach to",
+			       info->name, self->child_pid1);
+	}
+
+	ASSERT_EQ(setns(self->child_pidfd1, flags), 0) {
+		TH_LOG("%m - Failed to setns to namespaces of %d vid pidfd %d",
+		       self->child_pid1, self->child_pidfd1);
+	}
+
+	/*
+	 * Can't setns to a user namespace outside of our hierarchy since we
+	 * don't have caps in there and didn't create it. That means that under
+	 * no circumstances should we be able to setns to any of the other
+	 * ones since they aren't owned by our user namespace.
+	 */
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+
+		if (self->child_nsfds2[i] < 0 || !info->flag)
+			continue;
+
+		ASSERT_NE(setns(self->child_pidfd2, info->flag), 0) {
+			TH_LOG("Managed to setns to %s namespace of %d via pidfd %d",
+			       info->name, self->child_pid2,
+			       self->child_pidfd2);
+		}
+		TH_LOG("%m - Correctly failed to setns to %s namespace of %d via pidfd %d",
+		       info->name, self->child_pid2,
+		       self->child_pidfd2);
+
+		ASSERT_NE(setns(self->child_nsfds2[i], info->flag), 0) {
+			TH_LOG("Managed to setns to %s namespace of %d via nsfd %d",
+			       info->name, self->child_pid2,
+			       self->child_nsfds2[i]);
+		}
+		TH_LOG("%m - Correctly failed to setns to %s namespace of %d via nsfd %d",
+		       info->name, self->child_pid2,
+		       self->child_nsfds2[i]);
+	}
+
+	/*
+	 * Can't setns to a user namespace outside of our hierarchy since we
+	 * don't have caps in there and didn't create it. That means that under
+	 * no circumstances should we be able to setns to any of the other
+	 * ones since they aren't owned by our user namespace.
+	 */
+	for (i = 0; i < PIDFD_NS_MAX; i++) {
+		const struct ns_info *info = &ns_info[i];
+
+		if (self->child_pidfd_derived_nsfds2[i] < 0 || !info->flag)
+			continue;
+
+		ASSERT_NE(setns(self->child_pidfd_derived_nsfds2[i], info->flag), 0) {
+			TH_LOG("Managed to setns to %s namespace of %d via nsfd %d",
+			       info->name, self->child_pid2,
+			       self->child_pidfd_derived_nsfds2[i]);
+		}
+		TH_LOG("%m - Correctly failed to setns to %s namespace of %d via nsfd %d",
+		       info->name, self->child_pid2,
+		       self->child_pidfd_derived_nsfds2[i]);
+	}
+}
+
+TEST(setns_einval)
+{
+	int fd;
+
+	fd = sys_memfd_create("rostock", 0);
+	EXPECT_GT(fd, 0);
+
+	ASSERT_NE(setns(fd, 0), 0);
+	EXPECT_EQ(errno, EINVAL);
+	close(fd);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_test.c b/tools/testing/selftests/pidfd/pidfd_test.c
new file mode 100644
index 000000000000..932cbd8caa77
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_test.c
@@ -0,0 +1,628 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/types.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/epoll.h>
+#include <sys/mman.h>
+#include <sys/mount.h>
+#include <sys/wait.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "pidfd.h"
+#include "kselftest.h"
+
+#define str(s) _str(s)
+#define _str(s) #s
+#define CHILD_THREAD_MIN_WAIT 3 /* seconds */
+
+#define MAX_EVENTS 5
+
+static bool have_pidfd_send_signal;
+
+static pid_t pidfd_clone(int flags, int *pidfd, int (*fn)(void *))
+{
+	size_t stack_size = 1024;
+	char *stack[1024] = { 0 };
+
+#ifdef __ia64__
+	return __clone2(fn, stack, stack_size, flags | SIGCHLD, NULL, pidfd);
+#else
+	return clone(fn, stack + stack_size, flags | SIGCHLD, NULL, pidfd);
+#endif
+}
+
+static pthread_t signal_received;
+
+static void set_signal_received_on_sigusr1(int sig)
+{
+	if (sig == SIGUSR1)
+		signal_received = pthread_self();
+}
+
+static int send_signal(int pidfd)
+{
+	int ret = 0;
+
+	if (sys_pidfd_send_signal(pidfd, SIGUSR1, NULL, 0) < 0) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
+	if (signal_received != pthread_self()) {
+		ret = -EINVAL;
+		goto exit;
+	}
+
+exit:
+	signal_received = 0;
+	return ret;
+}
+
+static void *send_signal_worker(void *arg)
+{
+	int pidfd = (int)(intptr_t)arg;
+	int ret;
+
+	/* We forward any errors for the caller to handle. */
+	ret = send_signal(pidfd);
+	return (void *)(intptr_t)ret;
+}
+
+/*
+ * Straightforward test to see whether pidfd_send_signal() works is to send
+ * a signal to ourself.
+ */
+static int test_pidfd_send_signal_simple_success(void)
+{
+	int pidfd;
+	const char *test_name = "pidfd_send_signal send SIGUSR1";
+	pthread_t thread;
+	void *thread_res;
+	int err;
+
+	if (!have_pidfd_send_signal) {
+		ksft_test_result_skip(
+			"%s test: pidfd_send_signal() syscall not supported\n",
+			test_name);
+		return 0;
+	}
+
+	signal(SIGUSR1, set_signal_received_on_sigusr1);
+
+	/* Try sending a signal to ourselves via /proc/self. */
+	pidfd = open("/proc/self", O_DIRECTORY | O_CLOEXEC);
+	if (pidfd < 0)
+		ksft_exit_fail_msg(
+			"%s test: Failed to open process file descriptor\n",
+			test_name);
+	err = send_signal(pidfd);
+	if (err)
+		ksft_exit_fail_msg(
+			"%s test: Error %d on sending pidfd signal\n",
+			test_name, err);
+	close(pidfd);
+
+	/* Now try the same thing only using PIDFD_SELF_THREAD_GROUP. */
+	err = send_signal(PIDFD_SELF_THREAD_GROUP);
+	if (err)
+		ksft_exit_fail_msg(
+			"%s test: Error %d on PIDFD_SELF_THREAD_GROUP signal\n",
+			test_name, err);
+
+	/*
+	 * Now try the same thing in a thread and assert thread ID is equal to
+	 * worker thread ID.
+	 */
+	if (pthread_create(&thread, NULL, send_signal_worker,
+			   (void *)(intptr_t)PIDFD_SELF_THREAD))
+		ksft_exit_fail_msg("%s test: Failed to create thread\n",
+				   test_name);
+	if (pthread_join(thread, &thread_res))
+		ksft_exit_fail_msg("%s test: Failed to join thread\n",
+				   test_name);
+	err = (int)(intptr_t)thread_res;
+	if (err)
+		ksft_exit_fail_msg(
+			"%s test: Error %d on PIDFD_SELF_THREAD signal\n",
+			test_name, err);
+
+	ksft_test_result_pass("%s test: Sent signal\n", test_name);
+	return 0;
+}
+
+static int test_pidfd_send_signal_exited_fail(void)
+{
+	int pidfd, ret, saved_errno;
+	char buf[256];
+	pid_t pid;
+	const char *test_name = "pidfd_send_signal signal exited process";
+
+	if (!have_pidfd_send_signal) {
+		ksft_test_result_skip(
+			"%s test: pidfd_send_signal() syscall not supported\n",
+			test_name);
+		return 0;
+	}
+
+	pid = fork();
+	if (pid < 0)
+		ksft_exit_fail_msg("%s test: Failed to create new process\n",
+				   test_name);
+
+	if (pid == 0)
+		_exit(EXIT_SUCCESS);
+
+	snprintf(buf, sizeof(buf), "/proc/%d", pid);
+
+	pidfd = open(buf, O_DIRECTORY | O_CLOEXEC);
+
+	ret = wait_for_pid(pid);
+	ksft_print_msg("waitpid WEXITSTATUS=%d\n", ret);
+
+	if (pidfd < 0)
+		ksft_exit_fail_msg(
+			"%s test: Failed to open process file descriptor\n",
+			test_name);
+
+	ret = sys_pidfd_send_signal(pidfd, 0, NULL, 0);
+	saved_errno = errno;
+	close(pidfd);
+	if (ret == 0)
+		ksft_exit_fail_msg(
+			"%s test: Managed to send signal to process even though it should have failed\n",
+			test_name);
+
+	if (saved_errno != ESRCH)
+		ksft_exit_fail_msg(
+			"%s test: Expected to receive ESRCH as errno value but received %d instead\n",
+			test_name, saved_errno);
+
+	ksft_test_result_pass("%s test: Failed to send signal as expected\n",
+			      test_name);
+	return 0;
+}
+
+/*
+ * Maximum number of cycles we allow. This is equivalent to PID_MAX_DEFAULT.
+ * If users set a higher limit or we have cycled PIDFD_MAX_DEFAULT number of
+ * times then we skip the test to not go into an infinite loop or block for a
+ * long time.
+ */
+#define PIDFD_MAX_DEFAULT 0x8000
+
+static int test_pidfd_send_signal_recycled_pid_fail(void)
+{
+	int i, ret;
+	pid_t pid1;
+	const char *test_name = "pidfd_send_signal signal recycled pid";
+
+	if (!have_pidfd_send_signal) {
+		ksft_test_result_skip(
+			"%s test: pidfd_send_signal() syscall not supported\n",
+			test_name);
+		return 0;
+	}
+
+	ret = unshare(CLONE_NEWPID);
+	if (ret < 0) {
+		if (errno == EPERM) {
+			ksft_test_result_skip("%s test: Unsharing pid namespace not permitted\n",
+					      test_name);
+			return 0;
+		}
+		ksft_exit_fail_msg("%s test: Failed to unshare pid namespace\n",
+				   test_name);
+	}
+
+	ret = unshare(CLONE_NEWNS);
+	if (ret < 0) {
+		if (errno == EPERM) {
+			ksft_test_result_skip("%s test: Unsharing mount namespace not permitted\n",
+					      test_name);
+			return 0;
+		}
+		ksft_exit_fail_msg("%s test: Failed to unshare mount namespace\n",
+				   test_name);
+	}
+
+	ret = mount(NULL, "/", NULL, MS_REC | MS_PRIVATE, 0);
+	if (ret < 0)
+		ksft_exit_fail_msg("%s test: Failed to remount / private\n",
+				   test_name);
+
+	/* pid 1 in new pid namespace */
+	pid1 = fork();
+	if (pid1 < 0)
+		ksft_exit_fail_msg("%s test: Failed to create new process\n",
+				   test_name);
+
+	if (pid1 == 0) {
+		char buf[256];
+		pid_t pid2;
+		int pidfd = -1;
+
+		(void)umount2("/proc", MNT_DETACH);
+		ret = mount("proc", "/proc", "proc", 0, NULL);
+		if (ret < 0)
+			_exit(PIDFD_ERROR);
+
+		/* grab pid PID_RECYCLE */
+		for (i = 0; i <= PIDFD_MAX_DEFAULT; i++) {
+			pid2 = fork();
+			if (pid2 < 0)
+				_exit(PIDFD_ERROR);
+
+			if (pid2 == 0)
+				_exit(PIDFD_PASS);
+
+			if (pid2 == PID_RECYCLE) {
+				snprintf(buf, sizeof(buf), "/proc/%d", pid2);
+				ksft_print_msg("pid to recycle is %d\n", pid2);
+				pidfd = open(buf, O_DIRECTORY | O_CLOEXEC);
+			}
+
+			if (wait_for_pid(pid2))
+				_exit(PIDFD_ERROR);
+
+			if (pid2 >= PID_RECYCLE)
+				break;
+		}
+
+		/*
+		 * We want to be as predictable as we can so if we haven't been
+		 * able to grab pid PID_RECYCLE skip the test.
+		 */
+		if (pid2 != PID_RECYCLE) {
+			/* skip test */
+			close(pidfd);
+			_exit(PIDFD_SKIP);
+		}
+
+		if (pidfd < 0)
+			_exit(PIDFD_ERROR);
+
+		for (i = 0; i <= PIDFD_MAX_DEFAULT; i++) {
+			char c;
+			int pipe_fds[2];
+			pid_t recycled_pid;
+			int child_ret = PIDFD_PASS;
+
+			ret = pipe2(pipe_fds, O_CLOEXEC);
+			if (ret < 0)
+				_exit(PIDFD_ERROR);
+
+			recycled_pid = fork();
+			if (recycled_pid < 0)
+				_exit(PIDFD_ERROR);
+
+			if (recycled_pid == 0) {
+				close(pipe_fds[1]);
+				(void)read(pipe_fds[0], &c, 1);
+				close(pipe_fds[0]);
+
+				_exit(PIDFD_PASS);
+			}
+
+			/*
+			 * Stop the child so we can inspect whether we have
+			 * recycled pid PID_RECYCLE.
+			 */
+			close(pipe_fds[0]);
+			ret = kill(recycled_pid, SIGSTOP);
+			close(pipe_fds[1]);
+			if (ret) {
+				(void)wait_for_pid(recycled_pid);
+				_exit(PIDFD_ERROR);
+			}
+
+			/*
+			 * We have recycled the pid. Try to signal it. This
+			 * needs to fail since this is a different process than
+			 * the one the pidfd refers to.
+			 */
+			if (recycled_pid == PID_RECYCLE) {
+				ret = sys_pidfd_send_signal(pidfd, SIGCONT,
+							    NULL, 0);
+				if (ret && errno == ESRCH)
+					child_ret = PIDFD_XFAIL;
+				else
+					child_ret = PIDFD_FAIL;
+			}
+
+			/* let the process move on */
+			ret = kill(recycled_pid, SIGCONT);
+			if (ret)
+				(void)kill(recycled_pid, SIGKILL);
+
+			if (wait_for_pid(recycled_pid))
+				_exit(PIDFD_ERROR);
+
+			switch (child_ret) {
+			case PIDFD_FAIL:
+				/* fallthrough */
+			case PIDFD_XFAIL:
+				_exit(child_ret);
+			case PIDFD_PASS:
+				break;
+			default:
+				/* not reached */
+				_exit(PIDFD_ERROR);
+			}
+
+			/*
+			 * If the user set a custom pid_max limit we could be
+			 * in the millions.
+			 * Skip the test in this case.
+			 */
+			if (recycled_pid > PIDFD_MAX_DEFAULT)
+				_exit(PIDFD_SKIP);
+		}
+
+		/* failed to recycle pid */
+		_exit(PIDFD_SKIP);
+	}
+
+	ret = wait_for_pid(pid1);
+	switch (ret) {
+	case PIDFD_FAIL:
+		ksft_exit_fail_msg(
+			"%s test: Managed to signal recycled pid %d\n",
+			test_name, PID_RECYCLE);
+	case PIDFD_PASS:
+		ksft_exit_fail_msg("%s test: Failed to recycle pid %d\n",
+				   test_name, PID_RECYCLE);
+	case PIDFD_SKIP:
+		ksft_test_result_skip("%s test: Skipping test\n", test_name);
+		ret = 0;
+		break;
+	case PIDFD_XFAIL:
+		ksft_test_result_pass(
+			"%s test: Failed to signal recycled pid as expected\n",
+			test_name);
+		ret = 0;
+		break;
+	default /* PIDFD_ERROR */:
+		ksft_exit_fail_msg("%s test: Error while running tests\n",
+				   test_name);
+	}
+
+	return ret;
+}
+
+static int test_pidfd_send_signal_syscall_support(void)
+{
+	int pidfd, ret;
+	const char *test_name = "pidfd_send_signal check for support";
+
+	pidfd = open("/proc/self", O_DIRECTORY | O_CLOEXEC);
+	if (pidfd < 0)
+		ksft_exit_fail_msg(
+			"%s test: Failed to open process file descriptor\n",
+			test_name);
+
+	ret = sys_pidfd_send_signal(pidfd, 0, NULL, 0);
+	if (ret < 0) {
+		if (errno == ENOSYS) {
+			ksft_test_result_skip(
+				"%s test: pidfd_send_signal() syscall not supported\n",
+				test_name);
+			return 0;
+		}
+		ksft_exit_fail_msg("%s test: Failed to send signal\n",
+				   test_name);
+	}
+
+	have_pidfd_send_signal = true;
+	close(pidfd);
+	ksft_test_result_pass(
+		"%s test: pidfd_send_signal() syscall is supported. Tests can be executed\n",
+		test_name);
+	return 0;
+}
+
+static void *test_pidfd_poll_exec_thread(void *priv)
+{
+	ksft_print_msg("Child Thread: starting. pid %d tid %ld ; and sleeping\n",
+			getpid(), syscall(SYS_gettid));
+	ksft_print_msg("Child Thread: doing exec of sleep\n");
+
+	execl("/bin/sleep", "sleep", str(CHILD_THREAD_MIN_WAIT), (char *)NULL);
+
+	ksft_print_msg("Child Thread: DONE. pid %d tid %ld\n",
+			getpid(), syscall(SYS_gettid));
+	return NULL;
+}
+
+static void poll_pidfd(const char *test_name, int pidfd)
+{
+	int c;
+	int epoll_fd = epoll_create1(EPOLL_CLOEXEC);
+	struct epoll_event event, events[MAX_EVENTS];
+
+	if (epoll_fd == -1)
+		ksft_exit_fail_msg("%s test: Failed to create epoll file descriptor "
+				   "(errno %d)\n",
+				   test_name, errno);
+
+	event.events = EPOLLIN;
+	event.data.fd = pidfd;
+
+	if (epoll_ctl(epoll_fd, EPOLL_CTL_ADD, pidfd, &event)) {
+		ksft_exit_fail_msg("%s test: Failed to add epoll file descriptor "
+				   "(errno %d)\n",
+				   test_name, errno);
+	}
+
+	c = epoll_wait(epoll_fd, events, MAX_EVENTS, 5000);
+	if (c != 1 || !(events[0].events & EPOLLIN))
+		ksft_exit_fail_msg("%s test: Unexpected epoll_wait result (c=%d, events=%x) "
+				   "(errno %d)\n",
+				   test_name, c, events[0].events, errno);
+
+	close(epoll_fd);
+	return;
+
+}
+
+static int child_poll_exec_test(void *args)
+{
+	pthread_t t1;
+
+	ksft_print_msg("Child (pidfd): starting. pid %d tid %ld\n", getpid(),
+			syscall(SYS_gettid));
+	pthread_create(&t1, NULL, test_pidfd_poll_exec_thread, NULL);
+	/*
+	 * Exec in the non-leader thread will destroy the leader immediately.
+	 * If the wait in the parent returns too soon, the test fails.
+	 */
+	while (1)
+		sleep(1);
+
+	return 0;
+}
+
+static void test_pidfd_poll_exec(int use_waitpid)
+{
+	int pid, pidfd = 0;
+	int status, ret;
+	time_t prog_start = time(NULL);
+	const char *test_name = "pidfd_poll check for premature notification on child thread exec";
+
+	ksft_print_msg("Parent: pid: %d\n", getpid());
+	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_exec_test);
+	if (pid < 0)
+		ksft_exit_fail_msg("%s test: pidfd_clone failed (ret %d, errno %d)\n",
+				   test_name, pid, errno);
+
+	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);
+
+	if (use_waitpid) {
+		ret = waitpid(pid, &status, 0);
+		if (ret == -1)
+			ksft_print_msg("Parent: error\n");
+
+		if (ret == pid)
+			ksft_print_msg("Parent: Child process waited for.\n");
+	} else {
+		poll_pidfd(test_name, pidfd);
+	}
+
+	time_t prog_time = time(NULL) - prog_start;
+
+	ksft_print_msg("Time waited for child: %lu\n", prog_time);
+
+	close(pidfd);
+
+	if (prog_time < CHILD_THREAD_MIN_WAIT || prog_time > CHILD_THREAD_MIN_WAIT + 2)
+		ksft_exit_fail_msg("%s test: Failed\n", test_name);
+	else
+		ksft_test_result_pass("%s test: Passed\n", test_name);
+}
+
+static void *test_pidfd_poll_leader_exit_thread(void *priv)
+{
+	ksft_print_msg("Child Thread: starting. pid %d tid %ld ; and sleeping\n",
+			getpid(), syscall(SYS_gettid));
+	sleep(CHILD_THREAD_MIN_WAIT);
+	ksft_print_msg("Child Thread: DONE. pid %d tid %ld\n", getpid(), syscall(SYS_gettid));
+	return NULL;
+}
+
+static time_t *child_exit_secs;
+static int child_poll_leader_exit_test(void *args)
+{
+	pthread_t t1, t2;
+
+	ksft_print_msg("Child: starting. pid %d tid %ld\n", getpid(), syscall(SYS_gettid));
+	pthread_create(&t1, NULL, test_pidfd_poll_leader_exit_thread, NULL);
+	pthread_create(&t2, NULL, test_pidfd_poll_leader_exit_thread, NULL);
+
+	/*
+	 * glibc exit calls exit_group syscall, so explicitly call exit only
+	 * so that only the group leader exits, leaving the threads alone.
+	 */
+	*child_exit_secs = time(NULL);
+	syscall(SYS_exit, 0);
+	/* Never reached, but appeases compiler thinking we should return. */
+	exit(0);
+}
+
+static void test_pidfd_poll_leader_exit(int use_waitpid)
+{
+	int pid, pidfd = 0;
+	int status, ret = 0;
+	const char *test_name = "pidfd_poll check for premature notification on non-empty"
+				"group leader exit";
+
+	child_exit_secs = mmap(NULL, sizeof *child_exit_secs, PROT_READ | PROT_WRITE,
+			MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+
+	if (child_exit_secs == MAP_FAILED)
+		ksft_exit_fail_msg("%s test: mmap failed (errno %d)\n",
+				   test_name, errno);
+
+	ksft_print_msg("Parent: pid: %d\n", getpid());
+	pid = pidfd_clone(CLONE_PIDFD, &pidfd, child_poll_leader_exit_test);
+	if (pid < 0)
+		ksft_exit_fail_msg("%s test: pidfd_clone failed (ret %d, errno %d)\n",
+				   test_name, pid, errno);
+
+	ksft_print_msg("Parent: Waiting for Child (%d) to complete.\n", pid);
+
+	if (use_waitpid) {
+		ret = waitpid(pid, &status, 0);
+		if (ret == -1)
+			ksft_print_msg("Parent: error\n");
+	} else {
+		/*
+		 * This sleep tests for the case where if the child exits, and is in
+		 * EXIT_ZOMBIE, but the thread group leader is non-empty, then the poll
+		 * doesn't prematurely return even though there are active threads
+		 */
+		sleep(1);
+		poll_pidfd(test_name, pidfd);
+	}
+
+	if (ret == pid)
+		ksft_print_msg("Parent: Child process waited for.\n");
+
+	time_t since_child_exit = time(NULL) - *child_exit_secs;
+
+	ksft_print_msg("Time since child exit: %lu\n", since_child_exit);
+
+	close(pidfd);
+
+	if (since_child_exit < CHILD_THREAD_MIN_WAIT ||
+			since_child_exit > CHILD_THREAD_MIN_WAIT + 2)
+		ksft_exit_fail_msg("%s test: Failed\n", test_name);
+	else
+		ksft_test_result_pass("%s test: Passed\n", test_name);
+}
+
+int main(int argc, char **argv)
+{
+	ksft_print_header();
+	ksft_set_plan(8);
+
+	test_pidfd_poll_exec(0);
+	test_pidfd_poll_exec(1);
+	test_pidfd_poll_leader_exit(0);
+	test_pidfd_poll_leader_exit(1);
+	test_pidfd_send_signal_syscall_support();
+	test_pidfd_send_signal_simple_success();
+	test_pidfd_send_signal_exited_fail();
+	test_pidfd_send_signal_recycled_pid_fail();
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
new file mode 100644
index 000000000000..4bf702d62c1c
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_wait.c
@@ -0,0 +1,222 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <string.h>
+#include <sys/resource.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+#define ptr_to_u64(ptr) ((__u64)((uintptr_t)(ptr)))
+
+/* Attempt to de-conflict with the selftests tree. */
+#ifndef SKIP
+#define SKIP(s, ...)	XFAIL(s, ##__VA_ARGS__)
+#endif
+
+TEST(wait_simple)
+{
+	int pidfd = -1;
+	pid_t parent_tid = -1;
+	struct __clone_args args = {
+		.parent_tid = ptr_to_u64(&parent_tid),
+		.pidfd = ptr_to_u64(&pidfd),
+		.flags = CLONE_PIDFD | CLONE_PARENT_SETTID,
+		.exit_signal = SIGCHLD,
+	};
+	pid_t pid;
+	siginfo_t info = {
+		.si_signo = 0,
+	};
+
+	pidfd = open("/proc/self", O_DIRECTORY | O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	pid = sys_waitid(P_PIDFD, pidfd, &info, WEXITED);
+	ASSERT_NE(pid, 0);
+	EXPECT_EQ(close(pidfd), 0);
+	pidfd = -1;
+
+	pidfd = open("/dev/null", O_RDONLY | O_CLOEXEC);
+	ASSERT_GE(pidfd, 0);
+
+	pid = sys_waitid(P_PIDFD, pidfd, &info, WEXITED);
+	ASSERT_NE(pid, 0);
+	EXPECT_EQ(close(pidfd), 0);
+	pidfd = -1;
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		exit(EXIT_SUCCESS);
+
+	pid = sys_waitid(P_PIDFD, pidfd, &info, WEXITED);
+	ASSERT_GE(pid, 0);
+	ASSERT_EQ(WIFEXITED(info.si_status), true);
+	ASSERT_EQ(WEXITSTATUS(info.si_status), 0);
+	EXPECT_EQ(close(pidfd), 0);
+
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_EXITED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+}
+
+TEST(wait_states)
+{
+	int pidfd = -1;
+	pid_t parent_tid = -1;
+	struct __clone_args args = {
+		.parent_tid = ptr_to_u64(&parent_tid),
+		.pidfd = ptr_to_u64(&pidfd),
+		.flags = CLONE_PIDFD | CLONE_PARENT_SETTID,
+		.exit_signal = SIGCHLD,
+	};
+	int pfd[2];
+	pid_t pid;
+	siginfo_t info = {
+		.si_signo = 0,
+	};
+
+	ASSERT_EQ(pipe(pfd), 0);
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		char buf[2];
+
+		close(pfd[1]);
+		kill(getpid(), SIGSTOP);
+		ASSERT_EQ(read(pfd[0], buf, 1), 1);
+		close(pfd[0]);
+		kill(getpid(), SIGSTOP);
+		exit(EXIT_SUCCESS);
+	}
+
+	close(pfd[0]);
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WSTOPPED), 0);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_STOPPED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	ASSERT_EQ(sys_pidfd_send_signal(pidfd, SIGCONT, NULL, 0), 0);
+
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WCONTINUED), 0);
+	ASSERT_EQ(write(pfd[1], "C", 1), 1);
+	close(pfd[1]);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_CONTINUED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WUNTRACED), 0);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_STOPPED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	ASSERT_EQ(sys_pidfd_send_signal(pidfd, SIGKILL, NULL, 0), 0);
+
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WEXITED), 0);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_KILLED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	EXPECT_EQ(close(pidfd), 0);
+}
+
+TEST(wait_nonblock)
+{
+	int pidfd;
+	unsigned int flags = 0;
+	pid_t parent_tid = -1;
+	struct __clone_args args = {
+		.parent_tid = ptr_to_u64(&parent_tid),
+		.flags = CLONE_PARENT_SETTID,
+		.exit_signal = SIGCHLD,
+	};
+	int ret;
+	pid_t pid;
+	siginfo_t info = {
+		.si_signo = 0,
+	};
+
+	/*
+	 * Callers need to see ECHILD with non-blocking pidfds when no child
+	 * processes exists.
+	 */
+	pidfd = sys_pidfd_open(getpid(), PIDFD_NONBLOCK);
+	EXPECT_GE(pidfd, 0) {
+		/* pidfd_open() doesn't support PIDFD_NONBLOCK. */
+		ASSERT_EQ(errno, EINVAL);
+		SKIP(return, "Skipping PIDFD_NONBLOCK test");
+	}
+
+	ret = sys_waitid(P_PIDFD, pidfd, &info, WEXITED);
+	ASSERT_LT(ret, 0);
+	ASSERT_EQ(errno, ECHILD);
+	EXPECT_EQ(close(pidfd), 0);
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		kill(getpid(), SIGSTOP);
+		exit(EXIT_SUCCESS);
+	}
+
+	pidfd = sys_pidfd_open(pid, PIDFD_NONBLOCK);
+	EXPECT_GE(pidfd, 0) {
+		/* pidfd_open() doesn't support PIDFD_NONBLOCK. */
+		ASSERT_EQ(errno, EINVAL);
+		SKIP(return, "Skipping PIDFD_NONBLOCK test");
+	}
+
+	flags = fcntl(pidfd, F_GETFL, 0);
+	ASSERT_GT(flags, 0);
+	ASSERT_GT((flags & O_NONBLOCK), 0);
+
+	/*
+	 * Callers need to see EAGAIN/EWOULDBLOCK with non-blocking pidfd when
+	 * child processes exist but none have exited.
+	 */
+	ret = sys_waitid(P_PIDFD, pidfd, &info, WEXITED);
+	ASSERT_LT(ret, 0);
+	ASSERT_EQ(errno, EAGAIN);
+
+	/*
+	 * Callers need to continue seeing 0 with non-blocking pidfd and
+	 * WNOHANG raised explicitly when child processes exist but none have
+	 * exited.
+	 */
+	ret = sys_waitid(P_PIDFD, pidfd, &info, WEXITED | WNOHANG);
+	ASSERT_EQ(ret, 0);
+
+	ASSERT_EQ(fcntl(pidfd, F_SETFL, (flags & ~O_NONBLOCK)), 0);
+
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WSTOPPED), 0);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_STOPPED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	ASSERT_EQ(sys_pidfd_send_signal(pidfd, SIGCONT, NULL, 0), 0);
+
+	ASSERT_EQ(sys_waitid(P_PIDFD, pidfd, &info, WEXITED), 0);
+	ASSERT_EQ(info.si_signo, SIGCHLD);
+	ASSERT_EQ(info.si_code, CLD_EXITED);
+	ASSERT_EQ(info.si_pid, parent_tid);
+
+	EXPECT_EQ(close(pidfd), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/pidfd/pidfd_xattr_test.c b/tools/testing/selftests/pidfd/pidfd_xattr_test.c
new file mode 100644
index 000000000000..fd57511af7e4
--- /dev/null
+++ b/tools/testing/selftests/pidfd/pidfd_xattr_test.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <linux/types.h>
+#include <poll.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <linux/kcmp.h>
+#include <sys/stat.h>
+#include <sys/xattr.h>
+
+#include "pidfd.h"
+#include "kselftest_harness.h"
+
+FIXTURE(pidfs_xattr)
+{
+	pid_t child_pid;
+	int child_pidfd;
+};
+
+FIXTURE_SETUP(pidfs_xattr)
+{
+	self->child_pid = create_child(&self->child_pidfd, CLONE_NEWUSER | CLONE_NEWPID);
+	EXPECT_GE(self->child_pid, 0);
+
+	if (self->child_pid == 0)
+		_exit(EXIT_SUCCESS);
+}
+
+FIXTURE_TEARDOWN(pidfs_xattr)
+{
+	sys_waitid(P_PID, self->child_pid, NULL, WEXITED);
+}
+
+TEST_F(pidfs_xattr, set_get_list_xattr_multiple)
+{
+	int ret, i;
+	char xattr_name[32];
+	char xattr_value[32];
+	char buf[32];
+	const int num_xattrs = 10;
+	char list[PATH_MAX] = {};
+
+	for (i = 0; i < num_xattrs; i++) {
+		snprintf(xattr_name, sizeof(xattr_name), "trusted.testattr%d", i);
+		snprintf(xattr_value, sizeof(xattr_value), "testvalue%d", i);
+		ret = fsetxattr(self->child_pidfd, xattr_name, xattr_value, strlen(xattr_value), 0);
+		ASSERT_EQ(ret, 0);
+	}
+
+	for (i = 0; i < num_xattrs; i++) {
+		snprintf(xattr_name, sizeof(xattr_name), "trusted.testattr%d", i);
+		snprintf(xattr_value, sizeof(xattr_value), "testvalue%d", i);
+		memset(buf, 0, sizeof(buf));
+		ret = fgetxattr(self->child_pidfd, xattr_name, buf, sizeof(buf));
+		ASSERT_EQ(ret, strlen(xattr_value));
+		ASSERT_EQ(strcmp(buf, xattr_value), 0);
+	}
+
+	ret = flistxattr(self->child_pidfd, list, sizeof(list));
+	ASSERT_GT(ret, 0);
+	for (i = 0; i < num_xattrs; i++) {
+		snprintf(xattr_name, sizeof(xattr_name), "trusted.testattr%d", i);
+		bool found = false;
+		for (char *it = list; it < list + ret; it += strlen(it) + 1) {
+			if (strcmp(it, xattr_name))
+				continue;
+			found = true;
+			break;
+		}
+		ASSERT_TRUE(found);
+	}
+
+	for (i = 0; i < num_xattrs; i++) {
+		snprintf(xattr_name, sizeof(xattr_name), "trusted.testattr%d", i);
+		ret = fremovexattr(self->child_pidfd, xattr_name);
+		ASSERT_EQ(ret, 0);
+
+		ret = fgetxattr(self->child_pidfd, xattr_name, buf, sizeof(buf));
+		ASSERT_EQ(ret, -1);
+		ASSERT_EQ(errno, ENODATA);
+	}
+}
+
+TEST_F(pidfs_xattr, set_get_list_xattr_persistent)
+{
+	int ret;
+	char buf[32];
+	char list[PATH_MAX] = {};
+
+	ret = fsetxattr(self->child_pidfd, "trusted.persistent", "persistent value", strlen("persistent value"), 0);
+	ASSERT_EQ(ret, 0);
+
+	memset(buf, 0, sizeof(buf));
+	ret = fgetxattr(self->child_pidfd, "trusted.persistent", buf, sizeof(buf));
+	ASSERT_EQ(ret, strlen("persistent value"));
+	ASSERT_EQ(strcmp(buf, "persistent value"), 0);
+
+	ret = flistxattr(self->child_pidfd, list, sizeof(list));
+	ASSERT_GT(ret, 0);
+	ASSERT_EQ(strcmp(list, "trusted.persistent"), 0)
+
+	ASSERT_EQ(close(self->child_pidfd), 0);
+	self->child_pidfd = -EBADF;
+	sleep(2);
+
+	self->child_pidfd = sys_pidfd_open(self->child_pid, 0);
+	ASSERT_GE(self->child_pidfd, 0);
+
+	memset(buf, 0, sizeof(buf));
+	ret = fgetxattr(self->child_pidfd, "trusted.persistent", buf, sizeof(buf));
+	ASSERT_EQ(ret, strlen("persistent value"));
+	ASSERT_EQ(strcmp(buf, "persistent value"), 0);
+
+	ret = flistxattr(self->child_pidfd, list, sizeof(list));
+	ASSERT_GT(ret, 0);
+	ASSERT_EQ(strcmp(list, "trusted.persistent"), 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/power_supply/Makefile b/tools/testing/selftests/power_supply/Makefile
new file mode 100644
index 000000000000..44f0658d3d2e
--- /dev/null
+++ b/tools/testing/selftests/power_supply/Makefile
@@ -0,0 +1,4 @@
+TEST_PROGS := test_power_supply_properties.sh
+TEST_FILES := helpers.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/power_supply/helpers.sh b/tools/testing/selftests/power_supply/helpers.sh
new file mode 100644
index 000000000000..1ec90d7c9108
--- /dev/null
+++ b/tools/testing/selftests/power_supply/helpers.sh
@@ -0,0 +1,178 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2022, 2024 Collabora Ltd
+SYSFS_SUPPLIES=/sys/class/power_supply
+
+calc() {
+	awk "BEGIN { print $* }";
+}
+
+test_sysfs_prop() {
+	PROP="$1"
+	VALUE="$2" # optional
+
+	PROP_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP"
+	TEST_NAME="$DEVNAME".sysfs."$PROP"
+
+	if [ -z "$VALUE" ]; then
+		ktap_test_result "$TEST_NAME" [ -f "$PROP_PATH" ]
+	else
+		ktap_test_result "$TEST_NAME" grep -q "$VALUE" "$PROP_PATH"
+	fi
+}
+
+to_human_readable_unit() {
+	VALUE="$1"
+	UNIT="$2"
+
+	case "$VALUE" in
+		*[!0-9]* ) return ;; # Not a number
+	esac
+
+	if [ "$UNIT" = "uA" ]; then
+		new_unit="mA"
+		div=1000
+	elif [ "$UNIT" = "uV" ]; then
+		new_unit="V"
+		div=1000000
+	elif [ "$UNIT" = "uAh" ]; then
+		new_unit="Ah"
+		div=1000000
+	elif [ "$UNIT" = "uW" ]; then
+		new_unit="mW"
+		div=1000
+	elif [ "$UNIT" = "uWh" ]; then
+		new_unit="Wh"
+		div=1000000
+	else
+		return
+	fi
+
+	value_converted=$(calc "$VALUE"/"$div")
+	echo "$value_converted" "$new_unit"
+}
+
+_check_sysfs_prop_available() {
+	PROP=$1
+
+	PROP_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP"
+	TEST_NAME="$DEVNAME".sysfs."$PROP"
+
+	if [ ! -e "$PROP_PATH" ] ; then
+		ktap_test_skip "$TEST_NAME"
+		return 1
+	fi
+
+	if ! cat "$PROP_PATH" >/dev/null; then
+		ktap_print_msg "Failed to read"
+		ktap_test_fail "$TEST_NAME"
+		return 1
+	fi
+
+	return 0
+}
+
+test_sysfs_prop_optional() {
+	PROP=$1
+	UNIT=$2 # optional
+
+	TEST_NAME="$DEVNAME".sysfs."$PROP"
+
+	_check_sysfs_prop_available "$PROP" || return
+	DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
+
+	ktap_print_msg "Reported: '$DATA' $UNIT ($(to_human_readable_unit "$DATA" "$UNIT"))"
+	ktap_test_pass "$TEST_NAME"
+}
+
+test_sysfs_prop_optional_range() {
+	PROP=$1
+	MIN=$2
+	MAX=$3
+	UNIT=$4 # optional
+
+	TEST_NAME="$DEVNAME".sysfs."$PROP"
+
+	_check_sysfs_prop_available "$PROP" || return
+	DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
+
+	if [ "$DATA" -lt "$MIN" ] || [ "$DATA" -gt "$MAX" ]; then
+		ktap_print_msg "'$DATA' is out of range (min=$MIN, max=$MAX)"
+		ktap_test_fail "$TEST_NAME"
+	else
+		ktap_print_msg "Reported: '$DATA' $UNIT ($(to_human_readable_unit "$DATA" "$UNIT"))"
+		ktap_test_pass "$TEST_NAME"
+	fi
+}
+
+test_sysfs_prop_optional_list() {
+	PROP=$1
+	LIST=$2
+
+	TEST_NAME="$DEVNAME".sysfs."$PROP"
+
+	_check_sysfs_prop_available "$PROP" || return
+	DATA=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/"$PROP")
+
+	valid=0
+
+	OLDIFS=$IFS
+	IFS=","
+	for item in $LIST; do
+		if [ "$DATA" = "$item" ]; then
+			valid=1
+			break
+		fi
+	done
+	if [ "$valid" -eq 1 ]; then
+		ktap_print_msg "Reported: '$DATA'"
+		ktap_test_pass "$TEST_NAME"
+	else
+		ktap_print_msg "'$DATA' is not a valid value for this property"
+		ktap_test_fail "$TEST_NAME"
+	fi
+	IFS=$OLDIFS
+}
+
+dump_file() {
+	FILE="$1"
+	while read -r line; do
+		ktap_print_msg "$line"
+	done < "$FILE"
+}
+
+__test_uevent_prop() {
+	PROP="$1"
+	OPTIONAL="$2"
+	VALUE="$3" # optional
+
+	UEVENT_PATH="$SYSFS_SUPPLIES"/"$DEVNAME"/uevent
+	TEST_NAME="$DEVNAME".uevent."$PROP"
+
+	if ! grep -q "POWER_SUPPLY_$PROP=" "$UEVENT_PATH"; then
+		if [ "$OPTIONAL" -eq 1 ]; then
+			ktap_test_skip "$TEST_NAME"
+		else
+			ktap_print_msg "Missing property"
+			ktap_test_fail "$TEST_NAME"
+		fi
+		return
+	fi
+
+	if ! grep -q "POWER_SUPPLY_$PROP=$VALUE" "$UEVENT_PATH"; then
+		ktap_print_msg "Invalid value for uevent property, dumping..."
+		dump_file "$UEVENT_PATH"
+		ktap_test_fail "$TEST_NAME"
+	else
+		ktap_test_pass "$TEST_NAME"
+	fi
+}
+
+test_uevent_prop() {
+	__test_uevent_prop "$1" 0 "$2"
+}
+
+test_uevent_prop_optional() {
+	__test_uevent_prop "$1" 1 "$2"
+}
diff --git a/tools/testing/selftests/power_supply/test_power_supply_properties.sh b/tools/testing/selftests/power_supply/test_power_supply_properties.sh
new file mode 100755
index 000000000000..a66b1313ed88
--- /dev/null
+++ b/tools/testing/selftests/power_supply/test_power_supply_properties.sh
@@ -0,0 +1,114 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2022, 2024 Collabora Ltd
+#
+# This test validates the power supply uAPI: namely, the files in sysfs and
+# lines in uevent that expose the power supply properties.
+#
+# By default all power supplies available are tested. Optionally the name of a
+# power supply can be passed as a parameter to test only that one instead.
+DIR="$(dirname "$(readlink -f "$0")")"
+
+. "${DIR}"/../kselftest/ktap_helpers.sh
+
+. "${DIR}"/helpers.sh
+
+count_tests() {
+	SUPPLIES=$1
+
+	# This needs to be updated every time a new test is added.
+	NUM_TESTS=33
+
+	total_tests=0
+
+	for i in $SUPPLIES; do
+		total_tests=$((total_tests + NUM_TESTS))
+	done
+
+	echo "$total_tests"
+}
+
+ktap_print_header
+
+SYSFS_SUPPLIES=/sys/class/power_supply/
+
+if [ $# -eq 0 ]; then
+	supplies=$(ls "$SYSFS_SUPPLIES")
+else
+	supplies=$1
+fi
+
+ktap_set_plan "$(count_tests "$supplies")"
+
+for DEVNAME in $supplies; do
+	ktap_print_msg Testing device "$DEVNAME"
+
+	if [ ! -d "$SYSFS_SUPPLIES"/"$DEVNAME" ]; then
+		ktap_test_fail "$DEVNAME".exists
+		ktap_exit_fail_msg Device does not exist
+	fi
+
+	ktap_test_pass "$DEVNAME".exists
+
+	test_uevent_prop NAME "$DEVNAME"
+
+	test_sysfs_prop type
+	SUPPLY_TYPE=$(cat "$SYSFS_SUPPLIES"/"$DEVNAME"/type)
+	# This fails on kernels < 5.8 (needs 2ad3d74e3c69f)
+	test_uevent_prop TYPE "$SUPPLY_TYPE"
+
+	test_sysfs_prop_optional usb_type
+
+	test_sysfs_prop_optional_range online 0 2
+	test_sysfs_prop_optional_range present 0 1
+
+	test_sysfs_prop_optional_list status "Unknown","Charging","Discharging","Not charging","Full"
+
+	# Capacity is reported as percentage, thus any value less than 0 and
+	# greater than 100 are not allowed.
+	test_sysfs_prop_optional_range capacity 0 100 "%"
+
+	test_sysfs_prop_optional_list capacity_level "Unknown","Critical","Low","Normal","High","Full"
+
+	test_sysfs_prop_optional model_name
+	test_sysfs_prop_optional manufacturer
+	test_sysfs_prop_optional serial_number
+	test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd","LiMn"
+
+	test_sysfs_prop_optional cycle_count
+
+	test_sysfs_prop_optional_list scope "Unknown","System","Device"
+
+	test_sysfs_prop_optional input_current_limit "uA"
+	test_sysfs_prop_optional input_voltage_limit "uV"
+
+	# Technically the power-supply class does not limit reported values.
+	# E.g. one could expose an RTC backup-battery, which goes below 1.5V or
+	# an electric vehicle battery with over 300V. But most devices do not
+	# have a step-up capable regulator behind the battery and operate with
+	# voltages considered safe to touch, so we limit the allowed range to
+	# 1.8V-60V to catch drivers reporting incorrectly scaled values. E.g. a
+	# common mistake is reporting data in mV instead of µV.
+	test_sysfs_prop_optional_range voltage_now 1800000 60000000 "uV"
+	test_sysfs_prop_optional_range voltage_min 1800000 60000000 "uV"
+	test_sysfs_prop_optional_range voltage_max 1800000 60000000 "uV"
+	test_sysfs_prop_optional_range voltage_min_design 1800000 60000000 "uV"
+	test_sysfs_prop_optional_range voltage_max_design 1800000 60000000 "uV"
+
+	# current based systems
+	test_sysfs_prop_optional current_now "uA"
+	test_sysfs_prop_optional current_max "uA"
+	test_sysfs_prop_optional charge_now "uAh"
+	test_sysfs_prop_optional charge_full "uAh"
+	test_sysfs_prop_optional charge_full_design "uAh"
+
+	# power based systems
+	test_sysfs_prop_optional power_now "uW"
+	test_sysfs_prop_optional energy_now "uWh"
+	test_sysfs_prop_optional energy_full "uWh"
+	test_sysfs_prop_optional energy_full_design "uWh"
+	test_sysfs_prop_optional energy_full_design "uWh"
+done
+
+ktap_finished
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 03ca2e64b3fc..b175e94e1901 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for powerpc selftests
 
 # ARCH can be overridden by the user for cross compiling
@@ -6,48 +7,70 @@ ARCH := $(shell echo $(ARCH) | sed -e s/ppc.*/powerpc/)
 
 ifeq ($(ARCH),powerpc)
 
-GIT_VERSION = $(shell git describe --always --long --dirty || echo "unknown")
-
-CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CURDIR) $(CFLAGS)
-
-export CFLAGS
-
-SUB_DIRS = pmu copyloops mm tm primitives stringloops vphn switch_endian dscr
+SUB_DIRS = alignment		\
+	   benchmarks		\
+	   cache_shape		\
+	   copyloops		\
+	   dexcr		\
+	   dscr			\
+	   mm			\
+	   nx-gzip		\
+	   pmu			\
+	   signal		\
+	   primitives		\
+	   stringloops		\
+	   switch_endian	\
+	   syscalls		\
+	   tm			\
+	   eeh			\
+	   vphn         \
+	   math		\
+	   papr_attributes	\
+	   papr_vpd		\
+	   papr_sysparm		\
+	   ptrace	\
+	   security	\
+	   mce
 
 endif
 
 all: $(SUB_DIRS)
 
 $(SUB_DIRS):
-	$(MAKE) -k -C $@ all
+	BUILD_TARGET=$(OUTPUT)/$@; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $@ all
 
 include ../lib.mk
+include ./flags.mk
 
 override define RUN_TESTS
-	@for TARGET in $(SUB_DIRS); do \
-		$(MAKE) -C $$TARGET run_tests; \
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests;\
 	done;
 endef
 
 override define INSTALL_RULE
-	@for TARGET in $(SUB_DIRS); do \
-		$(MAKE) -C $$TARGET install; \
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET INSTALL_PATH=$$INSTALL_PATH/$$TARGET -C $$TARGET install;\
 	done;
 endef
 
-override define EMIT_TESTS
-	@for TARGET in $(SUB_DIRS); do \
-		$(MAKE) -s -C $$TARGET emit_tests; \
+emit_tests:
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET COLLECTION=$(COLLECTION)/$$TARGET -s -C $$TARGET $@;\
 	done;
-endef
 
-clean:
-	@for TARGET in $(SUB_DIRS); do \
-		$(MAKE) -C $$TARGET clean; \
+override define CLEAN
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean; \
 	done;
 	rm -f tags
+endef
 
 tags:
 	find . -name '*.c' -o -name '*.h' | xargs ctags
 
-.PHONY: tags $(SUB_DIRS)
+.PHONY: tags $(SUB_DIRS) emit_tests
diff --git a/tools/testing/selftests/powerpc/alignment/.gitignore b/tools/testing/selftests/powerpc/alignment/.gitignore
new file mode 100644
index 000000000000..28bc6ca13cc6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/alignment/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+copy_first_unaligned
+alignment_handler
diff --git a/tools/testing/selftests/powerpc/alignment/Makefile b/tools/testing/selftests/powerpc/alignment/Makefile
new file mode 100644
index 000000000000..66d5d7aaeb20
--- /dev/null
+++ b/tools/testing/selftests/powerpc/alignment/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+TEST_GEN_PROGS := copy_first_unaligned alignment_handler
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/alignment/alignment_handler.c b/tools/testing/selftests/powerpc/alignment/alignment_handler.c
new file mode 100644
index 000000000000..33ee34fc0828
--- /dev/null
+++ b/tools/testing/selftests/powerpc/alignment/alignment_handler.c
@@ -0,0 +1,680 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test the powerpc alignment handler on POWER8/POWER9
+ *
+ * Copyright (C) 2017 IBM Corporation (Michael Neuling, Andrew Donnellan)
+ */
+
+/*
+ * This selftest exercises the powerpc alignment fault handler.
+ *
+ * We create two sets of source and destination buffers, one in regular memory,
+ * the other cache-inhibited (by default we use /dev/fb0 for this, but an
+ * alterative path for cache-inhibited memory may be provided, e.g. memtrace).
+ *
+ * We initialise the source buffers, then use whichever set of load/store
+ * instructions is under test to copy bytes from the source buffers to the
+ * destination buffers. For the regular buffers, these instructions will
+ * execute normally. For the cache-inhibited buffers, these instructions
+ * will trap and cause an alignment fault, and the alignment fault handler
+ * will emulate the particular instruction under test. We then compare the
+ * destination buffers to ensure that the native and emulated cases give the
+ * same result.
+ *
+ * TODO:
+ *   - Any FIXMEs below
+ *   - Test VSX regs < 32 and > 32
+ *   - Test all loads and stores
+ *   - Check update forms do update register
+ *   - Test alignment faults over page boundary
+ *
+ * Some old binutils may not support all the instructions.
+ */
+
+
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <getopt.h>
+#include <setjmp.h>
+#include <signal.h>
+
+#include "utils.h"
+#include "instructions.h"
+
+int bufsize;
+int debug;
+int testing;
+volatile int gotsig;
+bool prefixes_enabled;
+char *cipath = "/dev/fb0";
+long cioffset;
+
+void sighandler(int sig, siginfo_t *info, void *ctx)
+{
+	ucontext_t *ucp = ctx;
+
+	if (!testing) {
+		signal(sig, SIG_DFL);
+		kill(0, sig);
+	}
+	gotsig = sig;
+#ifdef __powerpc64__
+	if (prefixes_enabled) {
+		u32 inst = *(u32 *)ucp->uc_mcontext.gp_regs[PT_NIP];
+		ucp->uc_mcontext.gp_regs[PT_NIP] += ((inst >> 26 == 1) ? 8 : 4);
+	} else {
+		ucp->uc_mcontext.gp_regs[PT_NIP] += 4;
+	}
+#else
+	ucp->uc_mcontext.uc_regs->gregs[PT_NIP] += 4;
+#endif
+}
+
+#define XFORM(reg, n)  " " #reg " ,%"#n",%2 ;"
+#define DFORM(reg, n)  " " #reg " ,0(%"#n") ;"
+
+#define TEST(name, ld_op, st_op, form, ld_reg, st_reg)		\
+	void test_##name(char *s, char *d)			\
+	{							\
+		asm volatile(					\
+			#ld_op form(ld_reg, 0)			\
+			#st_op form(st_reg, 1)			\
+			:: "r"(s), "r"(d), "r"(0)		\
+			: "memory", "vs0", "vs32", "r31");	\
+	}							\
+	rc |= do_test(#name, test_##name)
+
+#define TESTP(name, ld_op, st_op, ld_reg, st_reg)		\
+	void test_##name(char *s, char *d)			\
+	{							\
+		asm volatile(					\
+			ld_op(ld_reg, %0, 0, 0)			\
+			st_op(st_reg, %1, 0, 0)			\
+			:: "r"(s), "r"(d), "r"(0)		\
+			: "memory", "vs0", "vs32", "r31");	\
+	}							\
+	rc |= do_test(#name, test_##name)
+
+#define LOAD_VSX_XFORM_TEST(op) TEST(op, op, stxvd2x, XFORM, 32, 32)
+#define STORE_VSX_XFORM_TEST(op) TEST(op, lxvd2x, op, XFORM, 32, 32)
+#define LOAD_VSX_DFORM_TEST(op) TEST(op, op, stxv, DFORM, 32, 32)
+#define STORE_VSX_DFORM_TEST(op) TEST(op, lxv, op, DFORM, 32, 32)
+#define LOAD_VMX_XFORM_TEST(op) TEST(op, op, stxvd2x, XFORM, 0, 32)
+#define STORE_VMX_XFORM_TEST(op) TEST(op, lxvd2x, op, XFORM, 32, 0)
+#define LOAD_VMX_DFORM_TEST(op) TEST(op, op, stxv, DFORM, 0, 32)
+#define STORE_VMX_DFORM_TEST(op) TEST(op, lxv, op, DFORM, 32, 0)
+
+#define LOAD_XFORM_TEST(op) TEST(op, op, stdx, XFORM, 31, 31)
+#define STORE_XFORM_TEST(op) TEST(op, ldx, op, XFORM, 31, 31)
+#define LOAD_DFORM_TEST(op) TEST(op, op, std, DFORM, 31, 31)
+#define STORE_DFORM_TEST(op) TEST(op, ld, op, DFORM, 31, 31)
+
+#define LOAD_FLOAT_DFORM_TEST(op)  TEST(op, op, stfd, DFORM, 0, 0)
+#define STORE_FLOAT_DFORM_TEST(op) TEST(op, lfd, op, DFORM, 0, 0)
+#define LOAD_FLOAT_XFORM_TEST(op)  TEST(op, op, stfdx, XFORM, 0, 0)
+#define STORE_FLOAT_XFORM_TEST(op) TEST(op, lfdx, op, XFORM, 0, 0)
+
+#define LOAD_MLS_PREFIX_TEST(op) TESTP(op, op, PSTD, 31, 31)
+#define STORE_MLS_PREFIX_TEST(op) TESTP(op, PLD, op, 31, 31)
+
+#define LOAD_8LS_PREFIX_TEST(op) TESTP(op, op, PSTD, 31, 31)
+#define STORE_8LS_PREFIX_TEST(op) TESTP(op, PLD, op, 31, 31)
+
+#define LOAD_FLOAT_MLS_PREFIX_TEST(op) TESTP(op, op, PSTFD, 0, 0)
+#define STORE_FLOAT_MLS_PREFIX_TEST(op) TESTP(op, PLFD, op, 0, 0)
+
+#define LOAD_VSX_8LS_PREFIX_TEST(op, tail) TESTP(op, op, PSTXV ## tail, 0, 32)
+#define STORE_VSX_8LS_PREFIX_TEST(op, tail) TESTP(op, PLXV ## tail, op, 32, 0)
+
+/* FIXME: Unimplemented tests: */
+// STORE_DFORM_TEST(stq)   /* FIXME: need two registers for quad */
+// STORE_DFORM_TEST(stswi) /* FIXME: string instruction */
+
+// STORE_XFORM_TEST(stwat) /* AMO can't emulate or run on CI */
+// STORE_XFORM_TEST(stdat) /* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ */
+
+
+/* preload byte by byte */
+void preload_data(void *dst, int offset, int width)
+{
+	char *c = dst;
+	int i;
+
+	c += offset;
+
+	for (i = 0 ; i < width ; i++)
+		c[i] = i;
+}
+
+int test_memcpy(void *dst, void *src, int size, int offset,
+		void (*test_func)(char *, char *))
+{
+	char *s, *d;
+
+	s = src;
+	s += offset;
+	d = dst;
+	d += offset;
+
+	assert(size == 16);
+	gotsig = 0;
+	testing = 1;
+
+	test_func(s, d); /* run the actual test */
+
+	testing = 0;
+	if (gotsig) {
+		if (debug)
+			printf("  Got signal %i\n", gotsig);
+		return 1;
+	}
+	return 0;
+}
+
+void dumpdata(char *s1, char *s2, int n, char *test_name)
+{
+	int i;
+
+	printf("  %s: unexpected result:\n", test_name);
+	printf("    mem:");
+	for (i = 0; i < n; i++)
+		printf(" %02x", s1[i]);
+	printf("\n");
+	printf("    ci: ");
+	for (i = 0; i < n; i++)
+		printf(" %02x", s2[i]);
+	printf("\n");
+}
+
+int test_memcmp(void *s1, void *s2, int n, int offset, char *test_name)
+{
+	char *s1c, *s2c;
+
+	s1c = s1;
+	s1c += offset;
+	s2c = s2;
+	s2c += offset;
+
+	if (memcmp(s1c, s2c, n)) {
+		if (debug) {
+			printf("\n  Compare failed. Offset:%i length:%i\n",
+			       offset, n);
+			dumpdata(s1c, s2c, n, test_name);
+		}
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * Do two memcpy tests using the same instructions. One cachable
+ * memory and the other doesn't.
+ */
+int do_test(char *test_name, void (*test_func)(char *, char *))
+{
+	int offset, width, fd, rc, r;
+	void *mem0, *mem1, *ci0, *ci1;
+
+	printf("\tDoing %s:\t", test_name);
+
+	fd = open(cipath, O_RDWR);
+	if (fd < 0) {
+		printf("\n");
+		perror("Can't open ci file now?");
+		return 1;
+	}
+
+	ci0 = mmap(NULL, bufsize, PROT_WRITE | PROT_READ, MAP_SHARED,
+		   fd, cioffset);
+	ci1 = mmap(NULL, bufsize, PROT_WRITE | PROT_READ, MAP_SHARED,
+		   fd, cioffset + bufsize);
+
+	if ((ci0 == MAP_FAILED) || (ci1 == MAP_FAILED)) {
+		printf("\n");
+		perror("mmap failed");
+		SKIP_IF(1);
+	}
+
+	rc = posix_memalign(&mem0, bufsize, bufsize);
+	if (rc) {
+		printf("\n");
+		return rc;
+	}
+
+	rc = posix_memalign(&mem1, bufsize, bufsize);
+	if (rc) {
+		printf("\n");
+		free(mem0);
+		return rc;
+	}
+
+	rc = 0;
+	/*
+	 * offset = 0 is aligned but tests the workaround for the P9N
+	 * DD2.1 vector CI load issue (see 5080332c2c89 "powerpc/64s:
+	 * Add workaround for P9 vector CI load issue")
+	 */
+	for (offset = 0; offset < 16; offset++) {
+		width = 16; /* vsx == 16 bytes */
+		r = 0;
+
+		/* load pattern into memory byte by byte */
+		preload_data(ci0, offset, width);
+		preload_data(mem0, offset, width); // FIXME: remove??
+		memcpy(ci0, mem0, bufsize);
+		memcpy(ci1, mem1, bufsize); /* initialise output to the same */
+
+		/* sanity check */
+		test_memcmp(mem0, ci0, width, offset, test_name);
+
+		r |= test_memcpy(ci1,  ci0,  width, offset, test_func);
+		r |= test_memcpy(mem1, mem0, width, offset, test_func);
+		if (r && !debug) {
+			printf("FAILED: Got signal");
+			rc = 1;
+			break;
+		}
+
+		r |= test_memcmp(mem1, ci1, width, offset, test_name);
+		if (r && !debug) {
+			printf("FAILED: Wrong Data");
+			rc = 1;
+			break;
+		}
+	}
+
+	if (rc == 0)
+		printf("PASSED");
+
+	printf("\n");
+
+	munmap(ci0, bufsize);
+	munmap(ci1, bufsize);
+	free(mem0);
+	free(mem1);
+	close(fd);
+
+	return rc;
+}
+
+static bool can_open_cifile(void)
+{
+	int fd;
+
+	fd = open(cipath, O_RDWR);
+	if (fd < 0)
+		return false;
+
+	close(fd);
+	return true;
+}
+
+int test_alignment_handler_vsx_206(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	printf("VSX: 2.06B\n");
+	LOAD_VSX_XFORM_TEST(lxvd2x);
+	LOAD_VSX_XFORM_TEST(lxvw4x);
+	LOAD_VSX_XFORM_TEST(lxsdx);
+	LOAD_VSX_XFORM_TEST(lxvdsx);
+	STORE_VSX_XFORM_TEST(stxvd2x);
+	STORE_VSX_XFORM_TEST(stxvw4x);
+	STORE_VSX_XFORM_TEST(stxsdx);
+	return rc;
+}
+
+int test_alignment_handler_vsx_207(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	printf("VSX: 2.07B\n");
+	LOAD_VSX_XFORM_TEST(lxsspx);
+	LOAD_VSX_XFORM_TEST(lxsiwax);
+	LOAD_VSX_XFORM_TEST(lxsiwzx);
+	STORE_VSX_XFORM_TEST(stxsspx);
+	STORE_VSX_XFORM_TEST(stxsiwx);
+	return rc;
+}
+
+int test_alignment_handler_vsx_300(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
+	printf("VSX: 3.00B\n");
+	LOAD_VMX_DFORM_TEST(lxsd);
+	LOAD_VSX_XFORM_TEST(lxsibzx);
+	LOAD_VSX_XFORM_TEST(lxsihzx);
+	LOAD_VMX_DFORM_TEST(lxssp);
+	LOAD_VSX_DFORM_TEST(lxv);
+	LOAD_VSX_XFORM_TEST(lxvb16x);
+	LOAD_VSX_XFORM_TEST(lxvh8x);
+	LOAD_VSX_XFORM_TEST(lxvx);
+	LOAD_VSX_XFORM_TEST(lxvwsx);
+	LOAD_VSX_XFORM_TEST(lxvl);
+	LOAD_VSX_XFORM_TEST(lxvll);
+	STORE_VMX_DFORM_TEST(stxsd);
+	STORE_VSX_XFORM_TEST(stxsibx);
+	STORE_VSX_XFORM_TEST(stxsihx);
+	STORE_VMX_DFORM_TEST(stxssp);
+	STORE_VSX_DFORM_TEST(stxv);
+	STORE_VSX_XFORM_TEST(stxvb16x);
+	STORE_VSX_XFORM_TEST(stxvh8x);
+	STORE_VSX_XFORM_TEST(stxvx);
+	STORE_VSX_XFORM_TEST(stxvl);
+	STORE_VSX_XFORM_TEST(stxvll);
+	return rc;
+}
+
+int test_alignment_handler_vsx_prefix(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	printf("VSX: PREFIX\n");
+	LOAD_VSX_8LS_PREFIX_TEST(PLXSD, 0);
+	LOAD_VSX_8LS_PREFIX_TEST(PLXSSP, 0);
+	LOAD_VSX_8LS_PREFIX_TEST(PLXV0, 0);
+	LOAD_VSX_8LS_PREFIX_TEST(PLXV1, 1);
+	STORE_VSX_8LS_PREFIX_TEST(PSTXSD, 0);
+	STORE_VSX_8LS_PREFIX_TEST(PSTXSSP, 0);
+	STORE_VSX_8LS_PREFIX_TEST(PSTXV0, 0);
+	STORE_VSX_8LS_PREFIX_TEST(PSTXV1, 1);
+	return rc;
+}
+
+int test_alignment_handler_integer(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+
+	printf("Integer\n");
+	LOAD_DFORM_TEST(lbz);
+	LOAD_DFORM_TEST(lbzu);
+	LOAD_XFORM_TEST(lbzx);
+	LOAD_XFORM_TEST(lbzux);
+	LOAD_DFORM_TEST(lhz);
+	LOAD_DFORM_TEST(lhzu);
+	LOAD_XFORM_TEST(lhzx);
+	LOAD_XFORM_TEST(lhzux);
+	LOAD_DFORM_TEST(lha);
+	LOAD_DFORM_TEST(lhau);
+	LOAD_XFORM_TEST(lhax);
+	LOAD_XFORM_TEST(lhaux);
+	LOAD_XFORM_TEST(lhbrx);
+	LOAD_DFORM_TEST(lwz);
+	LOAD_DFORM_TEST(lwzu);
+	LOAD_XFORM_TEST(lwzx);
+	LOAD_XFORM_TEST(lwzux);
+	LOAD_DFORM_TEST(lwa);
+	LOAD_XFORM_TEST(lwax);
+	LOAD_XFORM_TEST(lwaux);
+	LOAD_XFORM_TEST(lwbrx);
+	LOAD_DFORM_TEST(ld);
+	LOAD_DFORM_TEST(ldu);
+	LOAD_XFORM_TEST(ldx);
+	LOAD_XFORM_TEST(ldux);
+	STORE_DFORM_TEST(stb);
+	STORE_XFORM_TEST(stbx);
+	STORE_DFORM_TEST(stbu);
+	STORE_XFORM_TEST(stbux);
+	STORE_DFORM_TEST(sth);
+	STORE_XFORM_TEST(sthx);
+	STORE_DFORM_TEST(sthu);
+	STORE_XFORM_TEST(sthux);
+	STORE_XFORM_TEST(sthbrx);
+	STORE_DFORM_TEST(stw);
+	STORE_XFORM_TEST(stwx);
+	STORE_DFORM_TEST(stwu);
+	STORE_XFORM_TEST(stwux);
+	STORE_XFORM_TEST(stwbrx);
+	STORE_DFORM_TEST(std);
+	STORE_XFORM_TEST(stdx);
+	STORE_DFORM_TEST(stdu);
+	STORE_XFORM_TEST(stdux);
+
+#ifdef __BIG_ENDIAN__
+	LOAD_DFORM_TEST(lmw);
+	STORE_DFORM_TEST(stmw);
+#endif
+
+	return rc;
+}
+
+int test_alignment_handler_integer_206(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	printf("Integer: 2.06\n");
+
+	LOAD_XFORM_TEST(ldbrx);
+	STORE_XFORM_TEST(stdbrx);
+
+	return rc;
+}
+
+int test_alignment_handler_integer_prefix(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	printf("Integer: PREFIX\n");
+	LOAD_MLS_PREFIX_TEST(PLBZ);
+	LOAD_MLS_PREFIX_TEST(PLHZ);
+	LOAD_MLS_PREFIX_TEST(PLHA);
+	LOAD_MLS_PREFIX_TEST(PLWZ);
+	LOAD_8LS_PREFIX_TEST(PLWA);
+	LOAD_8LS_PREFIX_TEST(PLD);
+	STORE_MLS_PREFIX_TEST(PSTB);
+	STORE_MLS_PREFIX_TEST(PSTH);
+	STORE_MLS_PREFIX_TEST(PSTW);
+	STORE_8LS_PREFIX_TEST(PSTD);
+	return rc;
+}
+
+int test_alignment_handler_vmx(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap(PPC_FEATURE_HAS_ALTIVEC));
+
+	printf("VMX\n");
+	LOAD_VMX_XFORM_TEST(lvx);
+
+	/*
+	 * FIXME: These loads only load part of the register, so our
+	 * testing method doesn't work. Also they don't take alignment
+	 * faults, so it's kinda pointless anyway
+	 *
+	 LOAD_VMX_XFORM_TEST(lvebx)
+	 LOAD_VMX_XFORM_TEST(lvehx)
+	 LOAD_VMX_XFORM_TEST(lvewx)
+	 LOAD_VMX_XFORM_TEST(lvxl)
+	*/
+	STORE_VMX_XFORM_TEST(stvx);
+	STORE_VMX_XFORM_TEST(stvebx);
+	STORE_VMX_XFORM_TEST(stvehx);
+	STORE_VMX_XFORM_TEST(stvewx);
+	STORE_VMX_XFORM_TEST(stvxl);
+	return rc;
+}
+
+int test_alignment_handler_fp(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+
+	printf("Floating point\n");
+	LOAD_FLOAT_DFORM_TEST(lfd);
+	LOAD_FLOAT_XFORM_TEST(lfdx);
+	LOAD_FLOAT_DFORM_TEST(lfdu);
+	LOAD_FLOAT_XFORM_TEST(lfdux);
+	LOAD_FLOAT_DFORM_TEST(lfs);
+	LOAD_FLOAT_XFORM_TEST(lfsx);
+	LOAD_FLOAT_DFORM_TEST(lfsu);
+	LOAD_FLOAT_XFORM_TEST(lfsux);
+	STORE_FLOAT_DFORM_TEST(stfd);
+	STORE_FLOAT_XFORM_TEST(stfdx);
+	STORE_FLOAT_DFORM_TEST(stfdu);
+	STORE_FLOAT_XFORM_TEST(stfdux);
+	STORE_FLOAT_DFORM_TEST(stfs);
+	STORE_FLOAT_XFORM_TEST(stfsx);
+	STORE_FLOAT_DFORM_TEST(stfsu);
+	STORE_FLOAT_XFORM_TEST(stfsux);
+	STORE_FLOAT_XFORM_TEST(stfiwx);
+
+	return rc;
+}
+
+int test_alignment_handler_fp_205(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_05));
+
+	printf("Floating point: 2.05\n");
+
+	LOAD_FLOAT_DFORM_TEST(lfdp);
+	LOAD_FLOAT_XFORM_TEST(lfdpx);
+	LOAD_FLOAT_XFORM_TEST(lfiwax);
+	STORE_FLOAT_DFORM_TEST(stfdp);
+	STORE_FLOAT_XFORM_TEST(stfdpx);
+
+	return rc;
+}
+
+int test_alignment_handler_fp_206(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	printf("Floating point: 2.06\n");
+
+	LOAD_FLOAT_XFORM_TEST(lfiwzx);
+
+	return rc;
+}
+
+
+int test_alignment_handler_fp_prefix(void)
+{
+	int rc = 0;
+
+	SKIP_IF(!can_open_cifile());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	printf("Floating point: PREFIX\n");
+	LOAD_FLOAT_DFORM_TEST(lfs);
+	LOAD_FLOAT_MLS_PREFIX_TEST(PLFS);
+	LOAD_FLOAT_MLS_PREFIX_TEST(PLFD);
+	STORE_FLOAT_MLS_PREFIX_TEST(PSTFS);
+	STORE_FLOAT_MLS_PREFIX_TEST(PSTFD);
+	return rc;
+}
+
+void usage(char *prog)
+{
+	printf("Usage: %s [options] [path [offset]]\n", prog);
+	printf("  -d	Enable debug error output\n");
+	printf("\n");
+	printf("This test requires a POWER8, POWER9 or POWER10 CPU ");
+	printf("and either a usable framebuffer at /dev/fb0 or ");
+	printf("the path to usable cache inhibited memory and optional ");
+	printf("offset to be provided\n");
+}
+
+int main(int argc, char *argv[])
+{
+
+	struct sigaction sa;
+	int rc = 0;
+	int option = 0;
+
+	while ((option = getopt(argc, argv, "d")) != -1) {
+		switch (option) {
+		case 'd':
+			debug++;
+			break;
+		default:
+			usage(argv[0]);
+			exit(1);
+		}
+	}
+	argc -= optind;
+	argv += optind;
+
+	if (argc > 0)
+		cipath = argv[0];
+	if (argc > 1)
+		cioffset = strtol(argv[1], 0, 0x10);
+
+	bufsize = getpagesize();
+
+	sa.sa_sigaction = sighandler;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGSEGV, &sa, NULL) == -1
+	    || sigaction(SIGBUS, &sa, NULL) == -1
+	    || sigaction(SIGILL, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(1);
+	}
+
+	prefixes_enabled = have_hwcap2(PPC_FEATURE2_ARCH_3_1);
+
+	rc |= test_harness(test_alignment_handler_vsx_206,
+			   "test_alignment_handler_vsx_206");
+	rc |= test_harness(test_alignment_handler_vsx_207,
+			   "test_alignment_handler_vsx_207");
+	rc |= test_harness(test_alignment_handler_vsx_300,
+			   "test_alignment_handler_vsx_300");
+	rc |= test_harness(test_alignment_handler_vsx_prefix,
+			   "test_alignment_handler_vsx_prefix");
+	rc |= test_harness(test_alignment_handler_integer,
+			   "test_alignment_handler_integer");
+	rc |= test_harness(test_alignment_handler_integer_206,
+			   "test_alignment_handler_integer_206");
+	rc |= test_harness(test_alignment_handler_integer_prefix,
+			   "test_alignment_handler_integer_prefix");
+	rc |= test_harness(test_alignment_handler_vmx,
+			   "test_alignment_handler_vmx");
+	rc |= test_harness(test_alignment_handler_fp,
+			   "test_alignment_handler_fp");
+	rc |= test_harness(test_alignment_handler_fp_205,
+			   "test_alignment_handler_fp_205");
+	rc |= test_harness(test_alignment_handler_fp_206,
+			   "test_alignment_handler_fp_206");
+	rc |= test_harness(test_alignment_handler_fp_prefix,
+			   "test_alignment_handler_fp_prefix");
+	return rc;
+}
diff --git a/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c b/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c
new file mode 100644
index 000000000000..db4e8c680500
--- /dev/null
+++ b/tools/testing/selftests/powerpc/alignment/copy_first_unaligned.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Chris Smart, IBM Corporation.
+ *
+ * Calls to copy_first which are not 128-byte aligned should be
+ * caught and sent a SIGBUS.
+ */
+
+#include <signal.h>
+#include <string.h>
+#include <unistd.h>
+#include "utils.h"
+#include "instructions.h"
+
+unsigned int expected_instruction = PPC_INST_COPY_FIRST;
+unsigned int instruction_mask = 0xfc2007fe;
+
+void signal_action_handler(int signal_num, siginfo_t *info, void *ptr)
+{
+	ucontext_t *ctx = ptr;
+#ifdef __powerpc64__
+	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.gp_regs[PT_NIP];
+#else
+	unsigned int *pc = (unsigned int *)ctx->uc_mcontext.uc_regs->gregs[PT_NIP];
+#endif
+
+	/*
+	 * Check that the signal was on the correct instruction, using a
+	 * mask because the compiler assigns the register at RB.
+	 */
+	if ((*pc & instruction_mask) == expected_instruction)
+		_exit(0); /* We hit the right instruction */
+
+	_exit(1);
+}
+
+void setup_signal_handler(void)
+{
+	struct sigaction signal_action;
+
+	memset(&signal_action, 0, sizeof(signal_action));
+	signal_action.sa_sigaction = signal_action_handler;
+	signal_action.sa_flags = SA_SIGINFO;
+	sigaction(SIGBUS, &signal_action, NULL);
+}
+
+char cacheline_buf[128] __cacheline_aligned;
+
+int test_copy_first_unaligned(void)
+{
+	/* Only run this test on a P9 or later */
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
+
+	/* Register our signal handler with SIGBUS */
+	setup_signal_handler();
+
+	/* +1 makes buf unaligned */
+	copy_first(cacheline_buf+1);
+
+	/* We should not get here */
+	return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_copy_first_unaligned, "test_copy_first_unaligned");
+}
diff --git a/tools/testing/selftests/powerpc/alignment/settings b/tools/testing/selftests/powerpc/alignment/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/alignment/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/benchmarks/.gitignore b/tools/testing/selftests/powerpc/benchmarks/.gitignore
new file mode 100644
index 000000000000..c9ce13983c99
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/.gitignore
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+gettimeofday
+context_switch
+fork
+exec_target
+mmap_bench
+futex_bench
+null_syscall
diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile
new file mode 100644
index 000000000000..ca4483c238b9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/Makefile
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := gettimeofday context_switch fork mmap_bench futex_bench null_syscall
+TEST_GEN_FILES := exec_target
+
+TEST_FILES := settings
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += -O2
+
+$(TEST_GEN_PROGS): ../harness.c
+
+$(OUTPUT)/context_switch: ../utils.c
+$(OUTPUT)/context_switch: CFLAGS += -maltivec -mvsx -mabi=altivec
+$(OUTPUT)/context_switch: LDLIBS += -lpthread
+
+$(OUTPUT)/fork: LDLIBS += -lpthread
+
+$(OUTPUT)/exec_target: CFLAGS += -nostartfiles
diff --git a/tools/testing/selftests/powerpc/benchmarks/context_switch.c b/tools/testing/selftests/powerpc/benchmarks/context_switch.c
new file mode 100644
index 000000000000..96554e2794d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/context_switch.c
@@ -0,0 +1,508 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Context switch microbenchmark.
+ *
+ * Copyright (C) 2015 Anton Blanchard <anton@au.ibm.com>, IBM
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <getopt.h>
+#include <signal.h>
+#include <assert.h>
+#include <pthread.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <sys/syscall.h>
+#include <sys/sysinfo.h>
+#include <sys/types.h>
+#include <sys/shm.h>
+#include <linux/futex.h>
+#ifdef __powerpc__
+#include <altivec.h>
+#endif
+#include "utils.h"
+
+static unsigned int timeout = 30;
+
+static int touch_vdso;
+struct timeval tv;
+
+static int touch_fp = 1;
+double fp;
+
+static int touch_vector = 1;
+vector int a, b, c;
+
+#ifdef __powerpc__
+static int touch_altivec = 1;
+
+/*
+ * Note: LTO (Link Time Optimisation) doesn't play well with this function
+ * attribute. Be very careful enabling LTO for this test.
+ */
+static void __attribute__((__target__("no-vsx"))) altivec_touch_fn(void)
+{
+	c = a + b;
+}
+#endif
+
+static void touch(void)
+{
+	if (touch_vdso)
+		gettimeofday(&tv, NULL);
+
+	if (touch_fp)
+		fp += 0.1;
+
+#ifdef __powerpc__
+	if (touch_altivec)
+		altivec_touch_fn();
+#endif
+
+	if (touch_vector)
+		c = a + b;
+
+	asm volatile("# %0 %1 %2": : "r"(&tv), "r"(&fp), "r"(&c));
+}
+
+static void start_thread_on(void *(*fn)(void *), void *arg, unsigned long cpu)
+{
+	int rc;
+	pthread_t tid;
+	cpu_set_t cpuset;
+	pthread_attr_t attr;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	rc = pthread_attr_init(&attr);
+	if (rc) {
+		errno = rc;
+		perror("pthread_attr_init");
+		exit(1);
+	}
+
+	rc = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+	if (rc)	{
+		errno = rc;
+		perror("pthread_attr_setaffinity_np");
+		exit(1);
+	}
+
+	rc = pthread_create(&tid, &attr, fn, arg);
+	if (rc) {
+		errno = rc;
+		perror("pthread_create");
+		exit(1);
+	}
+}
+
+static void start_process_on(void *(*fn)(void *), void *arg, unsigned long cpu)
+{
+	int pid, ncpus;
+	cpu_set_t *cpuset;
+	size_t size;
+
+	pid = fork();
+	if (pid == -1) {
+		perror("fork");
+		exit(1);
+	}
+
+	if (pid)
+		return;
+
+	ncpus = get_nprocs();
+	size = CPU_ALLOC_SIZE(ncpus);
+	cpuset = CPU_ALLOC(ncpus);
+	if (!cpuset) {
+		perror("malloc");
+		exit(1);
+	}
+	CPU_ZERO_S(size, cpuset);
+	CPU_SET_S(cpu, size, cpuset);
+
+	if (sched_setaffinity(0, size, cpuset)) {
+		perror("sched_setaffinity");
+		CPU_FREE(cpuset);
+		exit(1);
+	}
+
+	CPU_FREE(cpuset);
+	fn(arg);
+
+	exit(0);
+}
+
+static unsigned long iterations;
+static unsigned long iterations_prev;
+
+static void sigalrm_handler(int junk)
+{
+	unsigned long i = iterations;
+
+	printf("%ld\n", i - iterations_prev);
+	iterations_prev = i;
+
+	if (--timeout == 0)
+		kill(0, SIGUSR1);
+
+	alarm(1);
+}
+
+static void sigusr1_handler(int junk)
+{
+	exit(0);
+}
+
+struct actions {
+	void (*setup)(int, int);
+	void *(*thread1)(void *);
+	void *(*thread2)(void *);
+};
+
+#define READ 0
+#define WRITE 1
+
+static int pipe_fd1[2];
+static int pipe_fd2[2];
+
+static void pipe_setup(int cpu1, int cpu2)
+{
+	if (pipe(pipe_fd1) || pipe(pipe_fd2))
+		exit(1);
+}
+
+static void *pipe_thread1(void *arg)
+{
+	signal(SIGALRM, sigalrm_handler);
+	alarm(1);
+
+	while (1) {
+		assert(read(pipe_fd1[READ], &c, 1) == 1);
+		touch();
+
+		assert(write(pipe_fd2[WRITE], &c, 1) == 1);
+		touch();
+
+		iterations += 2;
+	}
+
+	return NULL;
+}
+
+static void *pipe_thread2(void *arg)
+{
+	while (1) {
+		assert(write(pipe_fd1[WRITE], &c, 1) == 1);
+		touch();
+
+		assert(read(pipe_fd2[READ], &c, 1) == 1);
+		touch();
+	}
+
+	return NULL;
+}
+
+static struct actions pipe_actions = {
+	.setup = pipe_setup,
+	.thread1 = pipe_thread1,
+	.thread2 = pipe_thread2,
+};
+
+static void yield_setup(int cpu1, int cpu2)
+{
+	if (cpu1 != cpu2) {
+		fprintf(stderr, "Both threads must be on the same CPU for yield test\n");
+		exit(1);
+	}
+}
+
+static void *yield_thread1(void *arg)
+{
+	signal(SIGALRM, sigalrm_handler);
+	alarm(1);
+
+	while (1) {
+		sched_yield();
+		touch();
+
+		iterations += 2;
+	}
+
+	return NULL;
+}
+
+static void *yield_thread2(void *arg)
+{
+	while (1) {
+		sched_yield();
+		touch();
+	}
+
+	return NULL;
+}
+
+static struct actions yield_actions = {
+	.setup = yield_setup,
+	.thread1 = yield_thread1,
+	.thread2 = yield_thread2,
+};
+
+static long sys_futex(void *addr1, int op, int val1, struct timespec *timeout,
+		      void *addr2, int val3)
+{
+	return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3);
+}
+
+static unsigned long cmpxchg(unsigned long *p, unsigned long expected,
+			     unsigned long desired)
+{
+	unsigned long exp = expected;
+
+	__atomic_compare_exchange_n(p, &exp, desired, 0,
+				    __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
+	return exp;
+}
+
+static unsigned long xchg(unsigned long *p, unsigned long val)
+{
+	return __atomic_exchange_n(p, val, __ATOMIC_SEQ_CST);
+}
+
+static int processes;
+
+static int mutex_lock(unsigned long *m)
+{
+	int c;
+	int flags = FUTEX_WAIT;
+	if (!processes)
+		flags |= FUTEX_PRIVATE_FLAG;
+
+	c = cmpxchg(m, 0, 1);
+	if (!c)
+		return 0;
+
+	if (c == 1)
+		c = xchg(m, 2);
+
+	while (c) {
+		sys_futex(m, flags, 2, NULL, NULL, 0);
+		c = xchg(m, 2);
+	}
+
+	return 0;
+}
+
+static int mutex_unlock(unsigned long *m)
+{
+	int flags = FUTEX_WAKE;
+	if (!processes)
+		flags |= FUTEX_PRIVATE_FLAG;
+
+	if (*m == 2)
+		*m = 0;
+	else if (xchg(m, 0) == 1)
+		return 0;
+
+	sys_futex(m, flags, 1, NULL, NULL, 0);
+
+	return 0;
+}
+
+static unsigned long *m1, *m2;
+
+static void futex_setup(int cpu1, int cpu2)
+{
+	if (!processes) {
+		static unsigned long _m1, _m2;
+		m1 = &_m1;
+		m2 = &_m2;
+	} else {
+		int shmid;
+		void *shmaddr;
+
+		shmid = shmget(IPC_PRIVATE, getpagesize(), SHM_R | SHM_W);
+		if (shmid < 0) {
+			perror("shmget");
+			exit(1);
+		}
+
+		shmaddr = shmat(shmid, NULL, 0);
+		if (shmaddr == (char *)-1) {
+			perror("shmat");
+			shmctl(shmid, IPC_RMID, NULL);
+			exit(1);
+		}
+
+		shmctl(shmid, IPC_RMID, NULL);
+
+		m1 = shmaddr;
+		m2 = shmaddr + sizeof(*m1);
+	}
+
+	*m1 = 0;
+	*m2 = 0;
+
+	mutex_lock(m1);
+	mutex_lock(m2);
+}
+
+static void *futex_thread1(void *arg)
+{
+	signal(SIGALRM, sigalrm_handler);
+	alarm(1);
+
+	while (1) {
+		mutex_lock(m2);
+		mutex_unlock(m1);
+
+		iterations += 2;
+	}
+
+	return NULL;
+}
+
+static void *futex_thread2(void *arg)
+{
+	while (1) {
+		mutex_unlock(m2);
+		mutex_lock(m1);
+	}
+
+	return NULL;
+}
+
+static struct actions futex_actions = {
+	.setup = futex_setup,
+	.thread1 = futex_thread1,
+	.thread2 = futex_thread2,
+};
+
+static struct option options[] = {
+	{ "test", required_argument, 0, 't' },
+	{ "process", no_argument, &processes, 1 },
+	{ "timeout", required_argument, 0, 's' },
+	{ "vdso", no_argument, &touch_vdso, 1 },
+	{ "no-fp", no_argument, &touch_fp, 0 },
+#ifdef __powerpc__
+	{ "no-altivec", no_argument, &touch_altivec, 0 },
+#endif
+	{ "no-vector", no_argument, &touch_vector, 0 },
+	{ 0, },
+};
+
+static void usage(void)
+{
+	fprintf(stderr, "Usage: context_switch2 <options> CPU1 CPU2\n\n");
+	fprintf(stderr, "\t\t--test=X\tpipe, futex or yield (default)\n");
+	fprintf(stderr, "\t\t--process\tUse processes (default threads)\n");
+	fprintf(stderr, "\t\t--timeout=X\tDuration in seconds to run (default 30)\n");
+	fprintf(stderr, "\t\t--vdso\t\ttouch VDSO\n");
+	fprintf(stderr, "\t\t--no-fp\t\tDon't touch FP\n");
+#ifdef __powerpc__
+	fprintf(stderr, "\t\t--no-altivec\tDon't touch altivec\n");
+#endif
+	fprintf(stderr, "\t\t--no-vector\tDon't touch vector\n");
+}
+
+int main(int argc, char *argv[])
+{
+	signed char c;
+	struct actions *actions = &yield_actions;
+	int cpu1;
+	int cpu2;
+	static void (*start_fn)(void *(*fn)(void *), void *arg, unsigned long cpu);
+
+	while (1) {
+		int option_index = 0;
+
+		c = getopt_long(argc, argv, "", options, &option_index);
+
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 0:
+			if (options[option_index].flag != 0)
+				break;
+
+			usage();
+			exit(1);
+			break;
+
+		case 't':
+			if (!strcmp(optarg, "pipe")) {
+				actions = &pipe_actions;
+			} else if (!strcmp(optarg, "yield")) {
+				actions = &yield_actions;
+			} else if (!strcmp(optarg, "futex")) {
+				actions = &futex_actions;
+			} else {
+				usage();
+				exit(1);
+			}
+			break;
+
+		case 's':
+			timeout = atoi(optarg);
+			break;
+
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	if (processes)
+		start_fn = start_process_on;
+	else
+		start_fn = start_thread_on;
+
+	if (((argc - optind) != 2)) {
+		cpu1 = cpu2 = pick_online_cpu();
+	} else {
+		cpu1 = atoi(argv[optind++]);
+		cpu2 = atoi(argv[optind++]);
+	}
+
+	printf("Using %s with ", processes ? "processes" : "threads");
+
+	if (actions == &pipe_actions)
+		printf("pipe");
+	else if (actions == &yield_actions)
+		printf("yield");
+	else
+		printf("futex");
+
+	if (!have_hwcap(PPC_FEATURE_HAS_ALTIVEC))
+		touch_altivec = 0;
+
+	if (!have_hwcap(PPC_FEATURE_HAS_VSX))
+		touch_vector = 0;
+
+	printf(" on cpus %d/%d touching FP:%s altivec:%s vector:%s vdso:%s\n",
+	       cpu1, cpu2, touch_fp ?  "yes" : "no", touch_altivec ? "yes" : "no",
+	       touch_vector ? "yes" : "no", touch_vdso ? "yes" : "no");
+
+	/* Create a new process group so we can signal everyone for exit */
+	setpgid(getpid(), getpid());
+
+	signal(SIGUSR1, sigusr1_handler);
+
+	actions->setup(cpu1, cpu2);
+
+	start_fn(actions->thread1, NULL, cpu1);
+	start_fn(actions->thread2, NULL, cpu2);
+
+	while (1)
+		sleep(3600);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/exec_target.c b/tools/testing/selftests/powerpc/benchmarks/exec_target.c
new file mode 100644
index 000000000000..a6408d3f26cd
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/exec_target.c
@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Part of fork context switch microbenchmark.
+ *
+ * Copyright 2018, Anton Blanchard, IBM Corp.
+ */
+
+#define _GNU_SOURCE
+#include <sys/syscall.h>
+
+void _start(void)
+{
+	asm volatile (
+		"li %%r0, %[sys_exit];"
+		"li %%r3, 0;"
+		"sc;"
+		:
+		: [sys_exit] "i" (SYS_exit)
+		/*
+		 * "sc" will clobber r0, r3-r13, cr0, ctr, xer and memory.
+		 * Even though sys_exit never returns, handle clobber
+		 * registers.
+		 */
+		: "r0", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10",
+		  "r11", "r12", "r13", "cr0", "ctr", "xer", "memory"
+	);
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/fork.c b/tools/testing/selftests/powerpc/benchmarks/fork.c
new file mode 100644
index 000000000000..d312e638cb37
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/fork.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Context switch microbenchmark.
+ *
+ * Copyright 2018, Anton Blanchard, IBM Corp.
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <errno.h>
+#include <getopt.h>
+#include <limits.h>
+#include <linux/futex.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/shm.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+static unsigned int timeout = 30;
+
+static void set_cpu(int cpu)
+{
+	cpu_set_t cpuset;
+
+	if (cpu == -1)
+		return;
+
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	if (sched_setaffinity(0, sizeof(cpuset), &cpuset)) {
+		perror("sched_setaffinity");
+		exit(1);
+	}
+}
+
+static void start_process_on(void *(*fn)(void *), void *arg, int cpu)
+{
+	int pid;
+
+	pid = fork();
+	if (pid == -1) {
+		perror("fork");
+		exit(1);
+	}
+
+	if (pid)
+		return;
+
+	set_cpu(cpu);
+
+	fn(arg);
+
+	exit(0);
+}
+
+static int cpu;
+static int do_fork = 0;
+static int do_vfork = 0;
+static int do_exec = 0;
+static char *exec_file;
+static int exec_target = 0;
+static unsigned long iterations;
+static unsigned long iterations_prev;
+
+static void run_exec(void)
+{
+	char *const argv[] = { "./exec_target", NULL };
+
+	if (execve("./exec_target", argv, NULL) == -1) {
+		perror("execve");
+		exit(1);
+	}
+}
+
+static void bench_fork(void)
+{
+	while (1) {
+		pid_t pid = fork();
+		if (pid == -1) {
+			perror("fork");
+			exit(1);
+		}
+		if (pid == 0) {
+			if (do_exec)
+				run_exec();
+			_exit(0);
+		}
+		pid = waitpid(pid, NULL, 0);
+		if (pid == -1) {
+			perror("waitpid");
+			exit(1);
+		}
+		iterations++;
+	}
+}
+
+static void bench_vfork(void)
+{
+	while (1) {
+		pid_t pid = vfork();
+		if (pid == -1) {
+			perror("fork");
+			exit(1);
+		}
+		if (pid == 0) {
+			if (do_exec)
+				run_exec();
+			_exit(0);
+		}
+		pid = waitpid(pid, NULL, 0);
+		if (pid == -1) {
+			perror("waitpid");
+			exit(1);
+		}
+		iterations++;
+	}
+}
+
+static void *null_fn(void *arg)
+{
+	pthread_exit(NULL);
+}
+
+static void bench_thread(void)
+{
+	pthread_t tid;
+	cpu_set_t cpuset;
+	pthread_attr_t attr;
+	int rc;
+
+	rc = pthread_attr_init(&attr);
+	if (rc) {
+		errno = rc;
+		perror("pthread_attr_init");
+		exit(1);
+	}
+
+	if (cpu != -1) {
+		CPU_ZERO(&cpuset);
+		CPU_SET(cpu, &cpuset);
+
+		rc = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+		if (rc) {
+			errno = rc;
+			perror("pthread_attr_setaffinity_np");
+			exit(1);
+		}
+	}
+
+	while (1) {
+		rc = pthread_create(&tid, &attr, null_fn, NULL);
+		if (rc) {
+			errno = rc;
+			perror("pthread_create");
+			exit(1);
+		}
+		rc = pthread_join(tid, NULL);
+		if (rc) {
+			errno = rc;
+			perror("pthread_join");
+			exit(1);
+		}
+		iterations++;
+	}
+}
+
+static void sigalrm_handler(int junk)
+{
+	unsigned long i = iterations;
+
+	printf("%ld\n", i - iterations_prev);
+	iterations_prev = i;
+
+	if (--timeout == 0)
+		kill(0, SIGUSR1);
+
+	alarm(1);
+}
+
+static void sigusr1_handler(int junk)
+{
+	exit(0);
+}
+
+static void *bench_proc(void *arg)
+{
+	signal(SIGALRM, sigalrm_handler);
+	alarm(1);
+
+	if (do_fork)
+		bench_fork();
+	else if (do_vfork)
+		bench_vfork();
+	else
+		bench_thread();
+
+	return NULL;
+}
+
+static struct option options[] = {
+	{ "fork", no_argument, &do_fork, 1 },
+	{ "vfork", no_argument, &do_vfork, 1 },
+	{ "exec", no_argument, &do_exec, 1 },
+	{ "timeout", required_argument, 0, 's' },
+	{ "exec-target", no_argument, &exec_target, 1 },
+	{ NULL },
+};
+
+static void usage(void)
+{
+	fprintf(stderr, "Usage: fork <options> CPU\n\n");
+	fprintf(stderr, "\t\t--fork\tUse fork() (default threads)\n");
+	fprintf(stderr, "\t\t--vfork\tUse vfork() (default threads)\n");
+	fprintf(stderr, "\t\t--exec\tAlso exec() (default no exec)\n");
+	fprintf(stderr, "\t\t--timeout=X\tDuration in seconds to run (default 30)\n");
+	fprintf(stderr, "\t\t--exec-target\tInternal option for exec workload\n");
+}
+
+int main(int argc, char *argv[])
+{
+	signed char c;
+
+	while (1) {
+		int option_index = 0;
+
+		c = getopt_long(argc, argv, "", options, &option_index);
+
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 0:
+			if (options[option_index].flag != 0)
+				break;
+
+			usage();
+			exit(1);
+			break;
+
+		case 's':
+			timeout = atoi(optarg);
+			break;
+
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	if (do_fork && do_vfork) {
+		usage();
+		exit(1);
+	}
+	if (do_exec && !do_fork && !do_vfork) {
+		usage();
+		exit(1);
+	}
+
+	if (do_exec) {
+		char *dirname = strdup(argv[0]);
+		int i;
+		i = strlen(dirname) - 1;
+		while (i) {
+			if (dirname[i] == '/') {
+				dirname[i] = '\0';
+				if (chdir(dirname) == -1) {
+					perror("chdir");
+					exit(1);
+				}
+				break;
+			}
+			i--;
+		}
+	}
+
+	if (exec_target) {
+		exit(0);
+	}
+
+	if (((argc - optind) != 1)) {
+		cpu = -1;
+	} else {
+		cpu = atoi(argv[optind++]);
+	}
+
+	if (do_exec)
+		exec_file = argv[0];
+
+	set_cpu(cpu);
+
+	printf("Using ");
+	if (do_fork)
+		printf("fork");
+	else if (do_vfork)
+		printf("vfork");
+	else
+		printf("clone");
+
+	if (do_exec)
+		printf(" + exec");
+
+	printf(" on cpu %d\n", cpu);
+
+	/* Create a new process group so we can signal everyone for exit */
+	setpgid(getpid(), getpid());
+
+	signal(SIGUSR1, sigusr1_handler);
+
+	start_process_on(bench_proc, NULL, cpu);
+
+	while (1)
+		sleep(3600);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/futex_bench.c b/tools/testing/selftests/powerpc/benchmarks/futex_bench.c
new file mode 100644
index 000000000000..017057090490
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/futex_bench.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2016, Anton Blanchard, Michael Ellerman, IBM Corp.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <sys/syscall.h>
+#include <time.h>
+#include <unistd.h>
+#include <linux/futex.h>
+
+#include "utils.h"
+
+#define ITERATIONS 100000000
+
+#define futex(A, B, C, D, E, F)	 syscall(__NR_futex, A, B, C, D, E, F)
+
+int test_futex(void)
+{
+	struct timespec ts_start, ts_end;
+	unsigned long i = ITERATIONS;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_start);
+
+	while (i--) {
+		unsigned int addr = 0;
+		futex(&addr, FUTEX_WAKE, 1, NULL, NULL, 0);
+	}
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_end);
+
+	printf("time = %.6f\n", ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9);
+
+	return 0;
+}
+
+int main(void)
+{
+	test_harness_set_timeout(300);
+	return test_harness(test_futex, "futex_bench");
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c
new file mode 100644
index 000000000000..b71ef8a493ed
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/gettimeofday.c
@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Anton Blanchard, IBM Corp.
+ */
+
+#include <sys/time.h>
+#include <stdio.h>
+
+#include "utils.h"
+
+static int test_gettimeofday(void)
+{
+	int i;
+
+	struct timeval tv_start, tv_end, tv_diff;
+
+	gettimeofday(&tv_start, NULL);
+
+	for(i = 0; i < 100000000; i++) {
+		gettimeofday(&tv_end, NULL);
+	}
+
+	timersub(&tv_end, &tv_start, &tv_diff);
+
+	printf("time = %.6f\n", tv_diff.tv_sec + (tv_diff.tv_usec) * 1e-6);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_gettimeofday, "gettimeofday");
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c b/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c
new file mode 100644
index 000000000000..2525adf64342
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/mmap_bench.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2016, Anton Blanchard, Michael Ellerman, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <time.h>
+#include <getopt.h>
+
+#include "utils.h"
+
+#define ITERATIONS 5000000
+
+#define MEMSIZE (1UL << 27)
+#define PAGE_SIZE (1UL << 16)
+#define CHUNK_COUNT (MEMSIZE/PAGE_SIZE)
+
+static int pg_fault;
+static int iterations = ITERATIONS;
+
+static struct option options[] = {
+	{ "pgfault", no_argument, &pg_fault, 1 },
+	{ "iterations", required_argument, 0, 'i' },
+	{ 0, },
+};
+
+static void usage(void)
+{
+	printf("mmap_bench <--pgfault> <--iterations count>\n");
+}
+
+int test_mmap(void)
+{
+	struct timespec ts_start, ts_end;
+	unsigned long i = iterations;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_start);
+
+	while (i--) {
+		char *c = mmap(NULL, MEMSIZE, PROT_READ|PROT_WRITE,
+			       MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+		FAIL_IF(c == MAP_FAILED);
+		if (pg_fault) {
+			int count;
+			for (count = 0; count < CHUNK_COUNT; count++)
+				c[count << 16] = 'c';
+		}
+		munmap(c, MEMSIZE);
+	}
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_end);
+
+	printf("time = %.6f\n", ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9);
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	signed char c;
+	while (1) {
+		int option_index = 0;
+
+		c = getopt_long(argc, argv, "", options, &option_index);
+
+		if (c == -1)
+			break;
+
+		switch (c) {
+		case 0:
+			if (options[option_index].flag != 0)
+				break;
+
+			usage();
+			exit(1);
+			break;
+		case 'i':
+			iterations = atoi(optarg);
+			break;
+		default:
+			usage();
+			exit(1);
+		}
+	}
+
+	test_harness_set_timeout(300);
+	return test_harness(test_mmap, "mmap_bench");
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/null_syscall.c b/tools/testing/selftests/powerpc/benchmarks/null_syscall.c
new file mode 100644
index 000000000000..9836838a529f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/null_syscall.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test null syscall performance
+ *
+ * Copyright (C) 2009-2015 Anton Blanchard, IBM
+ */
+
+#define NR_LOOPS 10000000
+
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/syscall.h>
+#include <signal.h>
+
+static volatile int soak_done;
+unsigned long long clock_frequency;
+unsigned long long timebase_frequency;
+double timebase_multiplier;
+
+static inline unsigned long mftb(void)
+{
+	unsigned long low;
+
+	asm volatile("mftb %0" : "=r" (low));
+
+	return low;
+}
+
+static void sigalrm_handler(int unused)
+{
+	soak_done = 1;
+}
+
+/*
+ * Use a timer instead of busy looping on clock_gettime() so we don't
+ * pollute profiles with glibc and VDSO hits.
+ */
+static void cpu_soak_usecs(unsigned long usecs)
+{
+	struct itimerval val;
+
+	memset(&val, 0, sizeof(val));
+	val.it_value.tv_usec = usecs;
+
+	signal(SIGALRM, sigalrm_handler);
+	setitimer(ITIMER_REAL, &val, NULL);
+
+	while (1) {
+		if (soak_done)
+			break;
+	}
+
+	signal(SIGALRM, SIG_DFL);
+}
+
+/*
+ * This only works with recent kernels where cpufreq modifies
+ * /proc/cpuinfo dynamically.
+ */
+static void get_proc_frequency(void)
+{
+	FILE *f;
+	char line[128];
+	char *p, *end;
+	unsigned long v;
+	double d;
+	char *override;
+
+	/* Try to get out of low power/low frequency mode */
+	cpu_soak_usecs(0.25 * 1000000);
+
+	f = fopen("/proc/cpuinfo", "r");
+	if (f == NULL)
+		return;
+
+	timebase_frequency = 0;
+
+	while (fgets(line, sizeof(line), f) != NULL) {
+		if (strncmp(line, "timebase", 8) == 0) {
+			p = strchr(line, ':');
+			if (p != NULL) {
+				v = strtoull(p + 1, &end, 0);
+				if (end != p + 1)
+					timebase_frequency = v;
+			}
+		}
+
+		if (((strncmp(line, "clock", 5) == 0) ||
+		     (strncmp(line, "cpu MHz", 7) == 0))) {
+			p = strchr(line, ':');
+			if (p != NULL) {
+				d = strtod(p + 1, &end);
+				if (end != p + 1) {
+					/* Find fastest clock frequency */
+					if ((d * 1000000ULL) > clock_frequency)
+						clock_frequency = d * 1000000ULL;
+				}
+			}
+		}
+	}
+
+	fclose(f);
+
+	override = getenv("FREQUENCY");
+	if (override)
+		clock_frequency = strtoull(override, NULL, 10);
+
+	if (timebase_frequency)
+		timebase_multiplier = (double)clock_frequency
+					/ timebase_frequency;
+	else
+		timebase_multiplier = 1;
+}
+
+static void do_null_syscall(unsigned long nr)
+{
+	unsigned long i;
+
+	for (i = 0; i < nr; i++)
+		syscall(__NR_gettid);
+}
+
+#define TIME(A, STR) \
+
+int main(void)
+{
+	unsigned long tb_start, tb_now;
+	struct timespec tv_start, tv_now;
+	unsigned long long elapsed_ns, elapsed_tb;
+
+	get_proc_frequency();
+
+	clock_gettime(CLOCK_MONOTONIC, &tv_start);
+	tb_start = mftb();
+
+	do_null_syscall(NR_LOOPS);
+
+	clock_gettime(CLOCK_MONOTONIC, &tv_now);
+	tb_now = mftb();
+
+	elapsed_ns = (tv_now.tv_sec - tv_start.tv_sec) * 1000000000ULL +
+			(tv_now.tv_nsec - tv_start.tv_nsec);
+	elapsed_tb = tb_now - tb_start;
+
+	printf("%10.2f ns %10.2f cycles\n", (float)elapsed_ns / NR_LOOPS,
+			(float)elapsed_tb * timebase_multiplier / NR_LOOPS);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/benchmarks/settings b/tools/testing/selftests/powerpc/benchmarks/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/benchmarks/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/powerpc/cache_shape/.gitignore b/tools/testing/selftests/powerpc/cache_shape/.gitignore
new file mode 100644
index 000000000000..b385eee3012c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/cache_shape/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+cache_shape
diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile
new file mode 100644
index 000000000000..3a3ca956ac66
--- /dev/null
+++ b/tools/testing/selftests/powerpc/cache_shape/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := cache_shape
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/cache_shape/cache_shape.c b/tools/testing/selftests/powerpc/cache_shape/cache_shape.c
new file mode 100644
index 000000000000..171b6c9480eb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/cache_shape/cache_shape.c
@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2017, Michael Ellerman, IBM Corp.
+ */
+
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <link.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+#ifndef AT_L1I_CACHESIZE
+#define AT_L1I_CACHESIZE	40
+#define AT_L1I_CACHEGEOMETRY	41
+#define AT_L1D_CACHESIZE	42
+#define AT_L1D_CACHEGEOMETRY	43
+#define AT_L2_CACHESIZE		44
+#define AT_L2_CACHEGEOMETRY	45
+#define AT_L3_CACHESIZE		46
+#define AT_L3_CACHEGEOMETRY	47
+#endif
+
+static void print_size(const char *label, uint32_t val)
+{
+	printf("%s cache size: %#10x %10dB %10dK\n", label, val, val, val / 1024);
+}
+
+static void print_geo(const char *label, uint32_t val)
+{
+	uint16_t assoc;
+
+	printf("%s line size:  %#10x       ", label, val & 0xFFFF);
+
+	assoc = val >> 16;
+	if (assoc)
+		printf("%u-way", assoc);
+	else
+		printf("fully");
+
+	printf(" associative\n");
+}
+
+static int test_cache_shape()
+{
+	static char buffer[4096];
+	ElfW(auxv_t) *p;
+	int found;
+
+	FAIL_IF(read_auxv(buffer, sizeof(buffer)));
+
+	found = 0;
+
+	p = find_auxv_entry(AT_L1I_CACHESIZE, buffer);
+	if (p) {
+		found++;
+		print_size("L1I ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L1I_CACHEGEOMETRY, buffer);
+	if (p) {
+		found++;
+		print_geo("L1I ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L1D_CACHESIZE, buffer);
+	if (p) {
+		found++;
+		print_size("L1D ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L1D_CACHEGEOMETRY, buffer);
+	if (p) {
+		found++;
+		print_geo("L1D ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L2_CACHESIZE, buffer);
+	if (p) {
+		found++;
+		print_size("L2  ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L2_CACHEGEOMETRY, buffer);
+	if (p) {
+		found++;
+		print_geo("L2  ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L3_CACHESIZE, buffer);
+	if (p) {
+		found++;
+		print_size("L3  ", (uint32_t)p->a_un.a_val);
+	}
+
+	p = find_auxv_entry(AT_L3_CACHEGEOMETRY, buffer);
+	if (p) {
+		found++;
+		print_geo("L3  ", (uint32_t)p->a_un.a_val);
+	}
+
+	/* If we found none we're probably on a system where they don't exist */
+	SKIP_IF(found == 0);
+
+	/* But if we found any, we expect to find them all */
+	FAIL_IF(found != 8);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_cache_shape, "cache_shape");
+}
diff --git a/tools/testing/selftests/powerpc/cache_shape/settings b/tools/testing/selftests/powerpc/cache_shape/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/cache_shape/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/copyloops/.gitignore b/tools/testing/selftests/powerpc/copyloops/.gitignore
index 25a192f62c4d..7283e8b07b75 100644
--- a/tools/testing/selftests/powerpc/copyloops/.gitignore
+++ b/tools/testing/selftests/powerpc/copyloops/.gitignore
@@ -1,4 +1,16 @@
-copyuser_64
-copyuser_power7
-memcpy_64
-memcpy_power7
+# SPDX-License-Identifier: GPL-2.0-only
+copyuser_64_t0
+copyuser_64_t1
+copyuser_64_t2
+copyuser_p7_t0
+copyuser_p7_t1
+memcpy_64_t0
+memcpy_64_t1
+memcpy_64_t2
+memcpy_p7_t0
+memcpy_p7_t1
+copyuser_64_exc_t0
+copyuser_64_exc_t1
+copyuser_64_exc_t2
+copy_mc_64
+memmove_64
diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile
index 384843ea0d40..42940f92d832 100644
--- a/tools/testing/selftests/powerpc/copyloops/Makefile
+++ b/tools/testing/selftests/powerpc/copyloops/Makefile
@@ -1,25 +1,66 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := copyuser_64_t0 copyuser_64_t1 copyuser_64_t2 \
+		copyuser_p7_t0 copyuser_p7_t1 \
+		memcpy_64_t0 memcpy_64_t1 memcpy_64_t2 \
+		memcpy_p7_t0 memcpy_p7_t1 copy_mc_64 \
+		copyuser_64_exc_t0 copyuser_64_exc_t1 copyuser_64_exc_t2 \
+		memmove_64
+
+EXTRA_SOURCES := validate.c ../harness.c stubs.S
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
 # The loops are all 64-bit code
 CFLAGS += -m64
 CFLAGS += -I$(CURDIR)
 CFLAGS += -D SELFTEST
 CFLAGS += -maltivec
+CFLAGS += -mcpu=power4
 
-# Use our CFLAGS for the implicit .S rule
-ASFLAGS = $(CFLAGS)
+# Use our CFLAGS for the implicit .S rule & set the asm machine type
+ASFLAGS = $(CFLAGS) -Wa,-mpower4
 
-TEST_PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7
-EXTRA_SOURCES := validate.c ../harness.c
+$(OUTPUT)/copyuser_64_t%:	copyuser_64.S $(EXTRA_SOURCES)
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test___copy_tofrom_user_base \
+		-D SELFTEST_CASE=$(subst copyuser_64_t,,$(notdir $@)) \
+		-o $@ $^
 
-all: $(TEST_PROGS)
+$(OUTPUT)/copyuser_p7_t%:	copyuser_power7.S $(EXTRA_SOURCES)
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test___copy_tofrom_user_power7 \
+		-D SELFTEST_CASE=$(subst copyuser_p7_t,,$(notdir $@)) \
+		-o $@ $^
 
-copyuser_64:     CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base
-copyuser_power7: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_power7
-memcpy_64:       CPPFLAGS += -D COPY_LOOP=test_memcpy
-memcpy_power7:   CPPFLAGS += -D COPY_LOOP=test_memcpy_power7
+# Strictly speaking, we only need the memcpy_64 test cases for big-endian
+$(OUTPUT)/memcpy_64_t%:	memcpy_64.S $(EXTRA_SOURCES)
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test_memcpy \
+		-D SELFTEST_CASE=$(subst memcpy_64_t,,$(notdir $@)) \
+		-o $@ $^
 
-$(TEST_PROGS): $(EXTRA_SOURCES)
+$(OUTPUT)/memcpy_p7_t%:	memcpy_power7.S $(EXTRA_SOURCES)
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test_memcpy_power7 \
+		-D SELFTEST_CASE=$(subst memcpy_p7_t,,$(notdir $@)) \
+		-o $@ $^
 
-include ../../lib.mk
+$(OUTPUT)/copy_mc_64: copy_mc_64.S $(EXTRA_SOURCES)
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test_copy_mc_generic \
+		-o $@ $^
+
+$(OUTPUT)/copyuser_64_exc_t%: copyuser_64.S exc_validate.c ../harness.c \
+		copy_tofrom_user_reference.S stubs.S
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D COPY_LOOP=test___copy_tofrom_user_base \
+		-D SELFTEST_CASE=$(subst copyuser_64_exc_t,,$(notdir $@)) \
+		-o $@ $^
 
-clean:
-	rm -f $(TEST_PROGS) *.o
+$(OUTPUT)/memmove_64: mem_64.S memcpy_64.S memmove_validate.c ../harness.c \
+		memcpy_stubs.S
+	$(CC) $(CPPFLAGS) $(CFLAGS) \
+		-D TEST_MEMMOVE=test_memmove \
+		-o $@ $^
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/asm-compat.h b/tools/testing/selftests/powerpc/copyloops/asm/asm-compat.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/asm/asm-compat.h
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/feature-fixups.h b/tools/testing/selftests/powerpc/copyloops/asm/feature-fixups.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/asm/feature-fixups.h
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/kasan.h b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
index 50ae7d2091ce..1d293ab77185 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __SELFTESTS_POWERPC_PPC_ASM_H
+#define __SELFTESTS_POWERPC_PPC_ASM_H
 #include <ppc-asm.h>
 
 #define CONFIG_ALTIVEC
@@ -22,35 +25,38 @@
 
 #define _GLOBAL(A) FUNC_START(test_ ## A)
 #define _GLOBAL_TOC(A) _GLOBAL(A)
+#define _GLOBAL_TOC_KASAN(A) _GLOBAL(A)
+#define _GLOBAL_KASAN(A) _GLOBAL(A)
+#define CFUNC(name) name
 
 #define PPC_MTOCRF(A, B)	mtocrf A, B
 
-FUNC_START(enter_vmx_usercopy)
-	li	r3,1
-	blr
-
-FUNC_START(exit_vmx_usercopy)
-	li	r3,0
-	blr
-
-FUNC_START(enter_vmx_copy)
-	li	r3,1
-	blr
-
-FUNC_START(exit_vmx_copy)
-	blr
-
-FUNC_START(memcpy_power7)
-	blr
-
-FUNC_START(__copy_tofrom_user_power7)
-	blr
-
-FUNC_START(__copy_tofrom_user_base)
-	blr
-
-#define BEGIN_FTR_SECTION
-#define FTR_SECTION_ELSE
-#define ALT_FTR_SECTION_END_IFCLR(x)
-#define ALT_FTR_SECTION_END(x, y)
-#define END_FTR_SECTION_IFCLR(x)
+#define EX_TABLE(x, y)			\
+	.section __ex_table,"a";	\
+	.8byte	x, y;			\
+	.previous
+
+#define BEGIN_FTR_SECTION		.if test_feature
+#define FTR_SECTION_ELSE		.else
+#define ALT_FTR_SECTION_END_IFCLR(x)	.endif
+#define ALT_FTR_SECTION_END_IFSET(x)	.endif
+#define ALT_FTR_SECTION_END(x, y)	.endif
+#define END_FTR_SECTION_IFCLR(x)	.endif
+#define END_FTR_SECTION_IFSET(x)	.endif
+
+/* Default to taking the first of any alternative feature sections */
+test_feature = 1
+
+#define DCBT_SETUP_STREAMS(from, from_parms, to, to_parms, scratch)	\
+	lis	scratch,0x8000;	/* GO=1 */				\
+	clrldi	scratch,scratch,32;					\
+	/* setup read stream 0 */					\
+	dcbt	0,from,0b01000;		/* addr from */			\
+	dcbt	0,from_parms,0b01010;	/* length and depth from */	\
+	/* setup write stream 1 */					\
+	dcbtst	0,to,0b01000;		/* addr to */			\
+	dcbtst	0,to_parms,0b01010;	/* length and depth to */	\
+	eieio;								\
+	dcbt	0,scratch,0b01010;	/* all streams GO */
+
+#endif /* __SELFTESTS_POWERPC_PPC_ASM_H */
diff --git a/tools/testing/selftests/powerpc/copyloops/copy_mc_64.S b/tools/testing/selftests/powerpc/copyloops/copy_mc_64.S
new file mode 120000
index 000000000000..dcbe06d500fb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/copy_mc_64.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/copy_mc_64.S
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/copyloops/copy_tofrom_user_reference.S b/tools/testing/selftests/powerpc/copyloops/copy_tofrom_user_reference.S
new file mode 100644
index 000000000000..3363b86407d6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/copy_tofrom_user_reference.S
@@ -0,0 +1,24 @@
+#include <asm/ppc_asm.h>
+
+_GLOBAL(copy_tofrom_user_reference)
+	cmpdi	r5,0
+	beq	4f
+
+	mtctr	r5
+
+1:	lbz	r6,0(r4)
+2:	stb	r6,0(r3)
+	addi	r3,r3,1
+	addi	r4,r4,1
+	bdnz	1b
+
+3:	mfctr	r3
+	blr
+
+4:	mr	r3,r5
+	blr
+
+.section __ex_table,"a"
+	.llong	1b,3b
+	.llong	2b,3b
+.text
diff --git a/tools/testing/selftests/powerpc/copyloops/exc_validate.c b/tools/testing/selftests/powerpc/copyloops/exc_validate.c
new file mode 100644
index 000000000000..c896ea9a763c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/exc_validate.c
@@ -0,0 +1,124 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "utils.h"
+
+extern char __start___ex_table[];
+extern char __stop___ex_table[];
+
+#if defined(__powerpc64__)
+#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.gp_regs[PT_NIP]
+#elif defined(__powerpc__)
+#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.uc_regs->gregs[PT_NIP]
+#else
+#error implement UCONTEXT_NIA
+#endif
+
+static void segv_handler(int signr, siginfo_t *info, void *ptr)
+{
+	ucontext_t *uc = (ucontext_t *)ptr;
+	unsigned long addr = (unsigned long)info->si_addr;
+	unsigned long *ip = &UCONTEXT_NIA(uc);
+	unsigned long *ex_p = (unsigned long *)__start___ex_table;
+
+	while (ex_p < (unsigned long *)__stop___ex_table) {
+		unsigned long insn, fixup;
+
+		insn = *ex_p++;
+		fixup = *ex_p++;
+
+		if (insn == *ip) {
+			*ip = fixup;
+			return;
+		}
+	}
+
+	printf("No exception table match for NIA %lx ADDR %lx\n", *ip, addr);
+	abort();
+}
+
+static void setup_segv_handler(void)
+{
+	struct sigaction action;
+
+	memset(&action, 0, sizeof(action));
+	action.sa_sigaction = segv_handler;
+	action.sa_flags = SA_SIGINFO;
+	sigaction(SIGSEGV, &action, NULL);
+}
+
+unsigned long COPY_LOOP(void *to, const void *from, unsigned long size);
+unsigned long test_copy_tofrom_user_reference(void *to, const void *from, unsigned long size);
+
+static int total_passed;
+static int total_failed;
+
+static void do_one_test(char *dstp, char *srcp, unsigned long len)
+{
+	unsigned long got, expected;
+
+	got = COPY_LOOP(dstp, srcp, len);
+	expected = test_copy_tofrom_user_reference(dstp, srcp, len);
+
+	if (got != expected) {
+		total_failed++;
+		printf("FAIL from=%p to=%p len=%ld returned %ld, expected %ld\n",
+		       srcp, dstp, len, got, expected);
+		//abort();
+	} else
+		total_passed++;
+}
+
+//#define MAX_LEN 512
+#define MAX_LEN 16
+
+int test_copy_exception(void)
+{
+	int page_size;
+	static char *p, *q;
+	unsigned long src, dst, len;
+
+	page_size = getpagesize();
+	p = mmap(NULL, page_size * 2, PROT_READ|PROT_WRITE,
+		MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+
+	if (p == MAP_FAILED) {
+		perror("mmap");
+		exit(1);
+	}
+
+	memset(p, 0, page_size);
+
+	setup_segv_handler();
+
+	if (mprotect(p + page_size, page_size, PROT_NONE)) {
+		perror("mprotect");
+		exit(1);
+	}
+
+	q = p + page_size - MAX_LEN;
+
+	for (src = 0; src < MAX_LEN; src++) {
+		for (dst = 0; dst < MAX_LEN; dst++) {
+			for (len = 0; len < MAX_LEN+1; len++) {
+				// printf("from=%p to=%p len=%ld\n", q+dst, q+src, len);
+				do_one_test(q+dst, q+src, len);
+			}
+		}
+	}
+
+	printf("Totals:\n");
+	printf("  Pass: %d\n", total_passed);
+	printf("  Fail: %d\n", total_failed);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_copy_exception, str(COPY_LOOP));
+}
diff --git a/tools/testing/selftests/powerpc/copyloops/linux/export.h b/tools/testing/selftests/powerpc/copyloops/linux/export.h
new file mode 100644
index 000000000000..e6b80d5fbd14
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/linux/export.h
@@ -0,0 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#define EXPORT_SYMBOL(x)
+#define EXPORT_SYMBOL_GPL(x)
+#define EXPORT_SYMBOL_KASAN(x)
diff --git a/tools/testing/selftests/powerpc/copyloops/mem_64.S b/tools/testing/selftests/powerpc/copyloops/mem_64.S
new file mode 120000
index 000000000000..db254c9a5f5c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/mem_64.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/mem_64.S
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/copyloops/memcpy_stubs.S b/tools/testing/selftests/powerpc/copyloops/memcpy_stubs.S
new file mode 100644
index 000000000000..d9baa832fa49
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/memcpy_stubs.S
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/ppc_asm.h>
+
+FUNC_START(memcpy)
+	b test_memcpy
+
+FUNC_START(backwards_memcpy)
+	b test_backwards_memcpy
diff --git a/tools/testing/selftests/powerpc/copyloops/memmove_validate.c b/tools/testing/selftests/powerpc/copyloops/memmove_validate.c
new file mode 100644
index 000000000000..1a23218b5757
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/memmove_validate.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <malloc.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include "utils.h"
+
+void *TEST_MEMMOVE(const void *s1, const void *s2, size_t n);
+
+#define BUF_LEN 65536
+#define MAX_OFFSET 512
+
+size_t max(size_t a, size_t b)
+{
+	if (a >= b)
+		return a;
+	return b;
+}
+
+static int testcase_run(void)
+{
+	size_t i, src_off, dst_off, len;
+
+	char *usermap = memalign(BUF_LEN, BUF_LEN);
+	char *kernelmap = memalign(BUF_LEN, BUF_LEN);
+
+	assert(usermap != NULL);
+	assert(kernelmap != NULL);
+
+	memset(usermap, 0, BUF_LEN);
+	memset(kernelmap, 0, BUF_LEN);
+
+	for (i = 0; i < BUF_LEN; i++) {
+		usermap[i] = i & 0xff;
+		kernelmap[i] = i & 0xff;
+	}
+
+	for (src_off = 0; src_off < MAX_OFFSET; src_off++) {
+		for (dst_off = 0; dst_off < MAX_OFFSET; dst_off++) {
+			for (len = 1; len < MAX_OFFSET - max(src_off, dst_off); len++) {
+
+				memmove(usermap + dst_off, usermap + src_off, len);
+				TEST_MEMMOVE(kernelmap + dst_off, kernelmap + src_off, len);
+				if (memcmp(usermap, kernelmap, MAX_OFFSET) != 0) {
+					printf("memmove failed at %ld %ld %ld\n",
+							src_off, dst_off, len);
+					abort();
+				}
+			}
+		}
+	}
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(testcase_run, "memmove");
+}
diff --git a/tools/testing/selftests/powerpc/copyloops/settings b/tools/testing/selftests/powerpc/copyloops/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/copyloops/stubs.S b/tools/testing/selftests/powerpc/copyloops/stubs.S
new file mode 100644
index 000000000000..ec8bcf2bf1c2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/stubs.S
@@ -0,0 +1,19 @@
+#include <asm/ppc_asm.h>
+
+FUNC_START(enter_vmx_usercopy)
+	li	r3,1
+	blr
+
+FUNC_START(exit_vmx_usercopy)
+	li	r3,0
+	blr
+
+FUNC_START(enter_vmx_ops)
+	li	r3,1
+	blr
+
+FUNC_START(exit_vmx_ops)
+	blr
+
+FUNC_START(__copy_tofrom_user_base)
+	blr
diff --git a/tools/testing/selftests/powerpc/copyloops/validate.c b/tools/testing/selftests/powerpc/copyloops/validate.c
index 1750ff57ee58..0f6873618552 100644
--- a/tools/testing/selftests/powerpc/copyloops/validate.c
+++ b/tools/testing/selftests/powerpc/copyloops/validate.c
@@ -1,9 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <malloc.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdbool.h>
 
-#include "../utils.h"
+#include "utils.h"
 
 #define MAX_LEN 8192
 #define MAX_OFFSET 16
diff --git a/tools/testing/selftests/powerpc/dexcr/.gitignore b/tools/testing/selftests/powerpc/dexcr/.gitignore
new file mode 100644
index 000000000000..11eefb4b9fa4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/.gitignore
@@ -0,0 +1,4 @@
+dexcr_test
+hashchk_test
+chdexcr
+lsdexcr
diff --git a/tools/testing/selftests/powerpc/dexcr/Makefile b/tools/testing/selftests/powerpc/dexcr/Makefile
new file mode 100644
index 000000000000..58cf9f722905
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/Makefile
@@ -0,0 +1,12 @@
+TEST_GEN_PROGS := dexcr_test hashchk_test
+TEST_GEN_FILES := lsdexcr chdexcr
+
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += $(KHDR_INCLUDES)
+
+$(OUTPUT)/hashchk_test: CFLAGS += -fno-pie -no-pie $(call cc-option,-mno-rop-protect)
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c ./dexcr.c
+$(TEST_GEN_FILES): ../utils.c ./dexcr.c
diff --git a/tools/testing/selftests/powerpc/dexcr/chdexcr.c b/tools/testing/selftests/powerpc/dexcr/chdexcr.c
new file mode 100644
index 000000000000..c548d7a5bb9b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/chdexcr.c
@@ -0,0 +1,112 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/prctl.h>
+
+#include "dexcr.h"
+#include "utils.h"
+
+static void die(const char *msg)
+{
+	printf("%s\n", msg);
+	exit(1);
+}
+
+static void help(void)
+{
+	printf("Invoke a provided program with a custom DEXCR on-exec reset value\n"
+	       "\n"
+	       "usage: chdexcr [CHDEXCR OPTIONS] -- PROGRAM [ARGS...]\n"
+	       "\n"
+	       "Each configurable DEXCR aspect is exposed as an option.\n"
+	       "\n"
+	       "The normal option sets the aspect in the DEXCR. The --no- variant\n"
+	       "clears that aspect. For example, --ibrtpd sets the IBRTPD aspect bit,\n"
+	       "so indirect branch prediction will be disabled in the provided program.\n"
+	       "Conversely, --no-ibrtpd clears the aspect bit, so indirect branch\n"
+	       "prediction may occur.\n"
+	       "\n"
+	       "CHDEXCR OPTIONS:\n");
+
+	for (int i = 0; i < ARRAY_SIZE(aspects); i++) {
+		const struct dexcr_aspect *aspect = &aspects[i];
+
+		if (aspect->prctl == -1)
+			continue;
+
+		printf("  --%-6s / --no-%-6s : %s\n", aspect->opt, aspect->opt, aspect->desc);
+	}
+}
+
+static const struct dexcr_aspect *opt_to_aspect(const char *opt)
+{
+	for (int i = 0; i < ARRAY_SIZE(aspects); i++)
+		if (aspects[i].prctl != -1 && !strcmp(aspects[i].opt, opt))
+			return &aspects[i];
+
+	return NULL;
+}
+
+static int apply_option(const char *option)
+{
+	const struct dexcr_aspect *aspect;
+	const char *opt = NULL;
+	const char *set_prefix = "--";
+	const char *clear_prefix = "--no-";
+	unsigned long ctrl = 0;
+	int err;
+
+	if (!strcmp(option, "-h") || !strcmp(option, "--help")) {
+		help();
+		exit(0);
+	}
+
+	/* Strip out --(no-) prefix and determine ctrl value */
+	if (!strncmp(option, clear_prefix, strlen(clear_prefix))) {
+		opt = &option[strlen(clear_prefix)];
+		ctrl |= PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC;
+	} else if (!strncmp(option, set_prefix, strlen(set_prefix))) {
+		opt = &option[strlen(set_prefix)];
+		ctrl |= PR_PPC_DEXCR_CTRL_SET_ONEXEC;
+	}
+
+	if (!opt || !*opt)
+		return 1;
+
+	aspect = opt_to_aspect(opt);
+	if (!aspect)
+		die("unknown aspect");
+
+	err = pr_set_dexcr(aspect->prctl, ctrl);
+	if (err)
+		die("failed to apply option");
+
+	return 0;
+}
+
+int main(int argc, char *const argv[])
+{
+	int i;
+
+	if (!dexcr_exists())
+		die("DEXCR not detected on this hardware");
+
+	for (i = 1; i < argc; i++)
+		if (apply_option(argv[i]))
+			break;
+
+	if (i < argc && !strcmp(argv[i], "--"))
+		i++;
+
+	if (i >= argc)
+		die("missing command");
+
+	execvp(argv[i], &argv[i]);
+	perror("execve");
+
+	return errno;
+}
diff --git a/tools/testing/selftests/powerpc/dexcr/dexcr.c b/tools/testing/selftests/powerpc/dexcr/dexcr.c
new file mode 100644
index 000000000000..468fd0dc9912
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/dexcr.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <errno.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include "dexcr.h"
+#include "reg.h"
+#include "utils.h"
+
+static jmp_buf generic_signal_jump_buf;
+
+static void generic_signal_handler(int signum, siginfo_t *info, void *context)
+{
+	longjmp(generic_signal_jump_buf, 0);
+}
+
+bool dexcr_exists(void)
+{
+	struct sigaction old;
+	volatile bool exists;
+
+	old = push_signal_handler(SIGILL, generic_signal_handler);
+	if (setjmp(generic_signal_jump_buf))
+		goto out;
+
+	/*
+	 * If the SPR is not recognised by the hardware it triggers
+	 * a hypervisor emulation interrupt. If the kernel does not
+	 * recognise/try to emulate it, we receive a SIGILL signal.
+	 *
+	 * If we do not receive a signal, assume we have the SPR or the
+	 * kernel is trying to emulate it correctly.
+	 */
+	exists = false;
+	mfspr(SPRN_DEXCR_RO);
+	exists = true;
+
+out:
+	pop_signal_handler(SIGILL, old);
+	return exists;
+}
+
+unsigned int pr_which_to_aspect(unsigned long which)
+{
+	switch (which) {
+	case PR_PPC_DEXCR_SBHE:
+		return DEXCR_PR_SBHE;
+	case PR_PPC_DEXCR_IBRTPD:
+		return DEXCR_PR_IBRTPD;
+	case PR_PPC_DEXCR_SRAPD:
+		return DEXCR_PR_SRAPD;
+	case PR_PPC_DEXCR_NPHIE:
+		return DEXCR_PR_NPHIE;
+	default:
+		FAIL_IF_EXIT_MSG(true, "unknown PR aspect");
+	}
+}
+
+int pr_get_dexcr(unsigned long which)
+{
+	return prctl(PR_PPC_GET_DEXCR, which, 0UL, 0UL, 0UL);
+}
+
+int pr_set_dexcr(unsigned long which, unsigned long ctrl)
+{
+	return prctl(PR_PPC_SET_DEXCR, which, ctrl, 0UL, 0UL);
+}
+
+bool pr_dexcr_aspect_supported(unsigned long which)
+{
+	if (pr_get_dexcr(which) == -1)
+		return errno == ENODEV;
+
+	return true;
+}
+
+bool pr_dexcr_aspect_editable(unsigned long which)
+{
+	return pr_get_dexcr(which) & PR_PPC_DEXCR_CTRL_EDITABLE;
+}
+
+/*
+ * Just test if a bad hashchk triggers a signal, without checking
+ * for support or if the NPHIE aspect is enabled.
+ */
+bool hashchk_triggers(void)
+{
+	struct sigaction old;
+	volatile bool triggers;
+
+	old = push_signal_handler(SIGILL, generic_signal_handler);
+	if (setjmp(generic_signal_jump_buf))
+		goto out;
+
+	triggers = true;
+	do_bad_hashchk();
+	triggers = false;
+
+out:
+	pop_signal_handler(SIGILL, old);
+	return triggers;
+}
+
+unsigned int get_dexcr(enum dexcr_source source)
+{
+	switch (source) {
+	case DEXCR:
+		return mfspr(SPRN_DEXCR_RO);
+	case HDEXCR:
+		return mfspr(SPRN_HDEXCR_RO);
+	case EFFECTIVE:
+		return mfspr(SPRN_DEXCR_RO) | mfspr(SPRN_HDEXCR_RO);
+	default:
+		FAIL_IF_EXIT_MSG(true, "bad enum dexcr_source");
+	}
+}
+
+void await_child_success(pid_t pid)
+{
+	int wstatus;
+
+	FAIL_IF_EXIT_MSG(pid == -1, "fork failed");
+	FAIL_IF_EXIT_MSG(waitpid(pid, &wstatus, 0) == -1, "wait failed");
+	FAIL_IF_EXIT_MSG(!WIFEXITED(wstatus), "child did not exit cleanly");
+	FAIL_IF_EXIT_MSG(WEXITSTATUS(wstatus) != 0, "child exit error");
+}
+
+/*
+ * Perform a hashst instruction. The following components determine the result
+ *
+ * 1. The LR value (any register technically)
+ * 2. The SP value (also any register, but it must be a valid address)
+ * 3. A secret key managed by the kernel
+ *
+ * The result is stored to the address held in SP.
+ */
+void hashst(unsigned long lr, void *sp)
+{
+	asm volatile ("addi 31, %0, 0;"		/* set r31 (pretend LR) to lr */
+		      "addi 30, %1, 8;"		/* set r30 (pretend SP) to sp + 8 */
+		      PPC_RAW_HASHST(31, -8, 30)	/* compute hash into stack location */
+		      : : "r" (lr), "r" (sp) : "r31", "r30", "memory");
+}
+
+/*
+ * Perform a hashchk instruction. A hash is computed as per hashst(),
+ * however the result is not stored to memory. Instead the existing
+ * value is read and compared against the computed hash.
+ *
+ * If they match, execution continues.
+ * If they differ, an interrupt triggers.
+ */
+void hashchk(unsigned long lr, void *sp)
+{
+	asm volatile ("addi 31, %0, 0;"		/* set r31 (pretend LR) to lr */
+		      "addi 30, %1, 8;"		/* set r30 (pretend SP) to sp + 8 */
+		      PPC_RAW_HASHCHK(31, -8, 30)	/* check hash at stack location */
+		      : : "r" (lr), "r" (sp) : "r31", "r30", "memory");
+}
+
+void do_bad_hashchk(void)
+{
+	unsigned long hash = 0;
+
+	hashst(0, &hash);
+	hash += 1;
+	hashchk(0, &hash);
+}
diff --git a/tools/testing/selftests/powerpc/dexcr/dexcr.h b/tools/testing/selftests/powerpc/dexcr/dexcr.h
new file mode 100644
index 000000000000..51e9ba3b0997
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/dexcr.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * POWER Dynamic Execution Control Facility (DEXCR)
+ *
+ * This header file contains helper functions and macros
+ * required for all the DEXCR related test cases.
+ */
+#ifndef _SELFTESTS_POWERPC_DEXCR_DEXCR_H
+#define _SELFTESTS_POWERPC_DEXCR_DEXCR_H
+
+#include <stdbool.h>
+#include <sys/prctl.h>
+#include <sys/types.h>
+
+#include "reg.h"
+
+#define DEXCR_PR_BIT(aspect)	__MASK(63 - (32 + (aspect)))
+#define DEXCR_PR_SBHE		DEXCR_PR_BIT(0)
+#define DEXCR_PR_IBRTPD		DEXCR_PR_BIT(3)
+#define DEXCR_PR_SRAPD		DEXCR_PR_BIT(4)
+#define DEXCR_PR_NPHIE		DEXCR_PR_BIT(5)
+
+#define PPC_RAW_HASH_ARGS(b, i, a) \
+	((((i) >> 3) & 0x1F) << 21 | (a) << 16 | (b) << 11 | (((i) >> 8) & 0x1))
+#define PPC_RAW_HASHST(b, i, a) \
+	str(.long (0x7C0005A4 | PPC_RAW_HASH_ARGS(b, i, a));)
+#define PPC_RAW_HASHCHK(b, i, a) \
+	str(.long (0x7C0005E4 | PPC_RAW_HASH_ARGS(b, i, a));)
+
+struct dexcr_aspect {
+	const char *name;	/* Short display name */
+	const char *opt;	/* Option name for chdexcr */
+	const char *desc;	/* Expanded aspect meaning */
+	unsigned int index;	/* Aspect bit index in DEXCR */
+	unsigned long prctl;	/* 'which' value for get/set prctl */
+};
+
+static const struct dexcr_aspect aspects[] = {
+	{
+		.name = "SBHE",
+		.opt = "sbhe",
+		.desc = "Speculative branch hint enable",
+		.index = 0,
+		.prctl = PR_PPC_DEXCR_SBHE,
+	},
+	{
+		.name = "IBRTPD",
+		.opt = "ibrtpd",
+		.desc = "Indirect branch recurrent target prediction disable",
+		.index = 3,
+		.prctl = PR_PPC_DEXCR_IBRTPD,
+	},
+	{
+		.name = "SRAPD",
+		.opt = "srapd",
+		.desc = "Subroutine return address prediction disable",
+		.index = 4,
+		.prctl = PR_PPC_DEXCR_SRAPD,
+	},
+	{
+		.name = "NPHIE",
+		.opt = "nphie",
+		.desc = "Non-privileged hash instruction enable",
+		.index = 5,
+		.prctl = PR_PPC_DEXCR_NPHIE,
+	},
+	{
+		.name = "PHIE",
+		.opt = "phie",
+		.desc = "Privileged hash instruction enable",
+		.index = 6,
+		.prctl = -1,
+	},
+};
+
+bool dexcr_exists(void);
+
+bool pr_dexcr_aspect_supported(unsigned long which);
+
+bool pr_dexcr_aspect_editable(unsigned long which);
+
+int pr_get_dexcr(unsigned long pr_aspect);
+
+int pr_set_dexcr(unsigned long pr_aspect, unsigned long ctrl);
+
+unsigned int pr_which_to_aspect(unsigned long which);
+
+bool hashchk_triggers(void);
+
+enum dexcr_source {
+	DEXCR,		/* Userspace DEXCR value */
+	HDEXCR,		/* Hypervisor enforced DEXCR value */
+	EFFECTIVE,	/* Bitwise OR of UDEXCR and ENFORCED DEXCR bits */
+};
+
+unsigned int get_dexcr(enum dexcr_source source);
+
+void await_child_success(pid_t pid);
+
+void hashst(unsigned long lr, void *sp);
+
+void hashchk(unsigned long lr, void *sp);
+
+void do_bad_hashchk(void);
+
+#endif  /* _SELFTESTS_POWERPC_DEXCR_DEXCR_H */
diff --git a/tools/testing/selftests/powerpc/dexcr/dexcr_test.c b/tools/testing/selftests/powerpc/dexcr/dexcr_test.c
new file mode 100644
index 000000000000..7a8657164908
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/dexcr_test.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "dexcr.h"
+#include "utils.h"
+
+/*
+ * Helper function for testing the behaviour of a newly exec-ed process
+ */
+static int dexcr_prctl_onexec_test_child(unsigned long which, const char *status)
+{
+	unsigned long dexcr = mfspr(SPRN_DEXCR_RO);
+	unsigned long aspect = pr_which_to_aspect(which);
+	int ctrl = pr_get_dexcr(which);
+
+	if (!strcmp(status, "set")) {
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET),
+				 "setting aspect across exec not applied");
+
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET_ONEXEC),
+				 "setting aspect across exec not inherited");
+
+		FAIL_IF_EXIT_MSG(!(aspect & dexcr), "setting aspect across exec did not take effect");
+	} else if (!strcmp(status, "clear")) {
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR),
+				 "clearing aspect across exec not applied");
+
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC),
+				 "clearing aspect across exec not inherited");
+
+		FAIL_IF_EXIT_MSG(aspect & dexcr, "clearing aspect across exec did not take effect");
+	} else {
+		FAIL_IF_EXIT_MSG(true, "unknown expected status");
+	}
+
+	return 0;
+}
+
+/*
+ * Test that the given prctl value can be manipulated freely
+ */
+static int dexcr_prctl_aspect_test(unsigned long which)
+{
+	unsigned long aspect = pr_which_to_aspect(which);
+	pid_t pid;
+	int ctrl;
+	int err;
+	int errno_save;
+
+	SKIP_IF_MSG(!dexcr_exists(), "DEXCR not supported");
+	SKIP_IF_MSG(!pr_dexcr_aspect_supported(which), "DEXCR aspect not supported");
+	SKIP_IF_MSG(!pr_dexcr_aspect_editable(which), "DEXCR aspect not editable with prctl");
+
+	/* We reject invalid combinations of arguments */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR);
+	errno_save = errno;
+	FAIL_IF_MSG(err != -1, "simultaneous set and clear should be rejected");
+	FAIL_IF_MSG(errno_save != EINVAL, "simultaneous set and clear should be rejected with EINVAL");
+
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET_ONEXEC | PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC);
+	errno_save = errno;
+	FAIL_IF_MSG(err != -1, "simultaneous set and clear on exec should be rejected");
+	FAIL_IF_MSG(errno_save != EINVAL, "simultaneous set and clear on exec should be rejected with EINVAL");
+
+	/* We set the aspect */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_SET failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET), "config value not PR_PPC_DEXCR_CTRL_SET");
+	FAIL_IF_MSG(ctrl & PR_PPC_DEXCR_CTRL_CLEAR, "config value unexpected clear flag");
+	FAIL_IF_MSG(!(aspect & mfspr(SPRN_DEXCR_RO)), "setting aspect did not take effect");
+
+	/* We clear the aspect */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_CLEAR);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_CLEAR failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR), "config value not PR_PPC_DEXCR_CTRL_CLEAR");
+	FAIL_IF_MSG(ctrl & PR_PPC_DEXCR_CTRL_SET, "config value unexpected set flag");
+	FAIL_IF_MSG(aspect & mfspr(SPRN_DEXCR_RO), "clearing aspect did not take effect");
+
+	/* We make it set on exec (doesn't change our current value) */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET_ONEXEC);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_SET_ONEXEC failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR), "process aspect should still be cleared");
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET_ONEXEC), "config value not PR_PPC_DEXCR_CTRL_SET_ONEXEC");
+	FAIL_IF_MSG(ctrl & PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC, "config value unexpected clear on exec flag");
+	FAIL_IF_MSG(aspect & mfspr(SPRN_DEXCR_RO), "scheduling aspect to set on exec should not change it now");
+
+	/* We make it clear on exec (doesn't change our current value) */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR), "process aspect config should still be cleared");
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC), "config value not PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC");
+	FAIL_IF_MSG(ctrl & PR_PPC_DEXCR_CTRL_SET_ONEXEC, "config value unexpected set on exec flag");
+	FAIL_IF_MSG(aspect & mfspr(SPRN_DEXCR_RO), "process aspect should still be cleared");
+
+	/* We allow setting the current and on-exec value in a single call */
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET), "config value not PR_PPC_DEXCR_CTRL_SET");
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC), "config value not PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC");
+	FAIL_IF_MSG(!(aspect & mfspr(SPRN_DEXCR_RO)), "process aspect should be set");
+
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_CLEAR | PR_PPC_DEXCR_CTRL_SET_ONEXEC);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_CLEAR | PR_PPC_DEXCR_CTRL_SET_ONEXEC failed");
+
+	ctrl = pr_get_dexcr(which);
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR), "config value not PR_PPC_DEXCR_CTRL_CLEAR");
+	FAIL_IF_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET_ONEXEC), "config value not PR_PPC_DEXCR_CTRL_SET_ONEXEC");
+	FAIL_IF_MSG(aspect & mfspr(SPRN_DEXCR_RO), "process aspect should be clear");
+
+	/* Verify the onexec value is applied across exec */
+	pid = fork();
+	if (!pid) {
+		char which_str[32] = {};
+		char *args[] = { "dexcr_prctl_onexec_test_child", which_str, "set", NULL };
+		unsigned int ctrl = pr_get_dexcr(which);
+
+		sprintf(which_str, "%lu", which);
+
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_SET_ONEXEC),
+				 "setting aspect on exec not copied across fork");
+
+		FAIL_IF_EXIT_MSG(mfspr(SPRN_DEXCR_RO) & aspect,
+				 "setting aspect on exec wrongly applied to fork");
+
+		execve("/proc/self/exe", args, NULL);
+		_exit(errno);
+	}
+	await_child_success(pid);
+
+	err = pr_set_dexcr(which, PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC);
+	FAIL_IF_MSG(err, "PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC failed");
+
+	pid = fork();
+	if (!pid) {
+		char which_str[32] = {};
+		char *args[] = { "dexcr_prctl_onexec_test_child", which_str, "clear", NULL };
+		unsigned int ctrl = pr_get_dexcr(which);
+
+		sprintf(which_str, "%lu", which);
+
+		FAIL_IF_EXIT_MSG(!(ctrl & PR_PPC_DEXCR_CTRL_CLEAR_ONEXEC),
+				 "clearing aspect on exec not copied across fork");
+
+		FAIL_IF_EXIT_MSG(!(mfspr(SPRN_DEXCR_RO) & aspect),
+				 "clearing aspect on exec wrongly applied to fork");
+
+		execve("/proc/self/exe", args, NULL);
+		_exit(errno);
+	}
+	await_child_success(pid);
+
+	return 0;
+}
+
+static int dexcr_prctl_ibrtpd_test(void)
+{
+	return dexcr_prctl_aspect_test(PR_PPC_DEXCR_IBRTPD);
+}
+
+static int dexcr_prctl_srapd_test(void)
+{
+	return dexcr_prctl_aspect_test(PR_PPC_DEXCR_SRAPD);
+}
+
+static int dexcr_prctl_nphie_test(void)
+{
+	return dexcr_prctl_aspect_test(PR_PPC_DEXCR_NPHIE);
+}
+
+int main(int argc, char *argv[])
+{
+	int err = 0;
+
+	/*
+	 * Some tests require checking what happens across exec, so we may be
+	 * invoked as the child of a particular test
+	 */
+	if (argc > 1) {
+		if (argc == 3 && !strcmp(argv[0], "dexcr_prctl_onexec_test_child")) {
+			unsigned long which;
+
+			err = parse_ulong(argv[1], strlen(argv[1]), &which, 10);
+			FAIL_IF_MSG(err, "failed to parse which value for child");
+
+			return dexcr_prctl_onexec_test_child(which, argv[2]);
+		}
+
+		FAIL_IF_MSG(true, "unknown test case");
+	}
+
+	/*
+	 * Otherwise we are the main test invocation and run the full suite
+	 */
+	err |= test_harness(dexcr_prctl_ibrtpd_test, "dexcr_prctl_ibrtpd");
+	err |= test_harness(dexcr_prctl_srapd_test, "dexcr_prctl_srapd");
+	err |= test_harness(dexcr_prctl_nphie_test, "dexcr_prctl_nphie");
+
+	return err;
+}
diff --git a/tools/testing/selftests/powerpc/dexcr/hashchk_test.c b/tools/testing/selftests/powerpc/dexcr/hashchk_test.c
new file mode 100644
index 000000000000..645224bdc142
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/hashchk_test.c
@@ -0,0 +1,233 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sched.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+
+#include "dexcr.h"
+#include "utils.h"
+
+static int require_nphie(void)
+{
+	SKIP_IF_MSG(!dexcr_exists(), "DEXCR not supported");
+
+	pr_set_dexcr(PR_PPC_DEXCR_NPHIE, PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_SET_ONEXEC);
+
+	if (get_dexcr(EFFECTIVE) & DEXCR_PR_NPHIE)
+		return 0;
+
+	SKIP_IF_MSG(!(get_dexcr(EFFECTIVE) & DEXCR_PR_NPHIE),
+		    "Failed to enable DEXCR[NPHIE]");
+
+	return 0;
+}
+
+static jmp_buf hashchk_detected_buf;
+static const char *hashchk_failure_msg;
+
+static void hashchk_handler(int signum, siginfo_t *info, void *context)
+{
+	if (signum != SIGILL)
+		hashchk_failure_msg = "wrong signal received";
+	else if (info->si_code != ILL_ILLOPN)
+		hashchk_failure_msg = "wrong signal code received";
+
+	longjmp(hashchk_detected_buf, 0);
+}
+
+/*
+ * Check that hashchk triggers when DEXCR[NPHIE] is enabled
+ * and is detected as such by the kernel exception handler
+ */
+static int hashchk_detected_test(void)
+{
+	struct sigaction old;
+	int err;
+
+	err = require_nphie();
+	if (err)
+		return err;
+
+	old = push_signal_handler(SIGILL, hashchk_handler);
+	if (setjmp(hashchk_detected_buf))
+		goto out;
+
+	hashchk_failure_msg = NULL;
+	do_bad_hashchk();
+	hashchk_failure_msg = "hashchk failed to trigger";
+
+out:
+	pop_signal_handler(SIGILL, old);
+	FAIL_IF_MSG(hashchk_failure_msg, hashchk_failure_msg);
+	return 0;
+}
+
+#define HASH_COUNT 8
+
+static unsigned long hash_values[HASH_COUNT + 1];
+
+static void fill_hash_values(void)
+{
+	for (unsigned long i = 0; i < HASH_COUNT; i++)
+		hashst(i, &hash_values[i]);
+
+	/* Used to ensure the checks uses the same addresses as the hashes */
+	hash_values[HASH_COUNT] = (unsigned long)&hash_values;
+}
+
+static unsigned int count_hash_values_matches(void)
+{
+	unsigned long matches = 0;
+
+	for (unsigned long i = 0; i < HASH_COUNT; i++) {
+		unsigned long orig_hash = hash_values[i];
+		hash_values[i] = 0;
+
+		hashst(i, &hash_values[i]);
+
+		if (hash_values[i] == orig_hash)
+			matches++;
+	}
+
+	return matches;
+}
+
+static int hashchk_exec_child(void)
+{
+	ssize_t count;
+
+	fill_hash_values();
+
+	count = write(STDOUT_FILENO, hash_values, sizeof(hash_values));
+	return count == sizeof(hash_values) ? 0 : EOVERFLOW;
+}
+
+static char *hashchk_exec_child_args[] = { "hashchk_exec_child", NULL };
+
+/*
+ * Check that new programs get different keys so a malicious process
+ * can't recreate a victim's hash values.
+ */
+static int hashchk_exec_random_key_test(void)
+{
+	pid_t pid;
+	int err;
+	int pipefd[2];
+
+	err = require_nphie();
+	if (err)
+		return err;
+
+	FAIL_IF_MSG(pipe(pipefd), "failed to create pipe");
+
+	pid = fork();
+	if (pid == 0) {
+		if (dup2(pipefd[1], STDOUT_FILENO) == -1)
+			_exit(errno);
+
+		execve("/proc/self/exe", hashchk_exec_child_args, NULL);
+		_exit(errno);
+	}
+
+	await_child_success(pid);
+	FAIL_IF_MSG(read(pipefd[0], hash_values, sizeof(hash_values)) != sizeof(hash_values),
+		    "missing expected child output");
+
+	/* Verify the child used the same hash_values address */
+	FAIL_IF_EXIT_MSG(hash_values[HASH_COUNT] != (unsigned long)&hash_values,
+			 "bad address check");
+
+	/* If all hashes are the same it means (most likely) same key */
+	FAIL_IF_MSG(count_hash_values_matches() == HASH_COUNT, "shared key detected");
+
+	return 0;
+}
+
+/*
+ * Check that forks share the same key so that existing hash values
+ * remain valid.
+ */
+static int hashchk_fork_share_key_test(void)
+{
+	pid_t pid;
+	int err;
+
+	err = require_nphie();
+	if (err)
+		return err;
+
+	fill_hash_values();
+
+	pid = fork();
+	if (pid == 0) {
+		if (count_hash_values_matches() != HASH_COUNT)
+			_exit(1);
+		_exit(0);
+	}
+
+	await_child_success(pid);
+	return 0;
+}
+
+#define STACK_SIZE (1024 * 1024)
+
+static int hashchk_clone_child_fn(void *args)
+{
+	fill_hash_values();
+	return 0;
+}
+
+/*
+ * Check that threads share the same key so that existing hash values
+ * remain valid.
+ */
+static int hashchk_clone_share_key_test(void)
+{
+	void *child_stack;
+	pid_t pid;
+	int err;
+
+	err = require_nphie();
+	if (err)
+		return err;
+
+	child_stack = mmap(NULL, STACK_SIZE, PROT_READ | PROT_WRITE,
+			   MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+
+	FAIL_IF_MSG(child_stack == MAP_FAILED, "failed to map child stack");
+
+	pid = clone(hashchk_clone_child_fn, child_stack + STACK_SIZE,
+		    CLONE_VM | SIGCHLD, NULL);
+
+	await_child_success(pid);
+	FAIL_IF_MSG(count_hash_values_matches() != HASH_COUNT,
+		    "different key detected");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int err = 0;
+
+	if (argc >= 1 && !strcmp(argv[0], hashchk_exec_child_args[0]))
+		return hashchk_exec_child();
+
+	err |= test_harness(hashchk_detected_test, "hashchk_detected");
+	err |= test_harness(hashchk_exec_random_key_test, "hashchk_exec_random_key");
+	err |= test_harness(hashchk_fork_share_key_test, "hashchk_fork_share_key");
+	err |= test_harness(hashchk_clone_share_key_test, "hashchk_clone_share_key");
+
+	return err;
+}
diff --git a/tools/testing/selftests/powerpc/dexcr/lsdexcr.c b/tools/testing/selftests/powerpc/dexcr/lsdexcr.c
new file mode 100644
index 000000000000..7588929180ab
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/lsdexcr.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/prctl.h>
+
+#include "dexcr.h"
+#include "utils.h"
+
+static unsigned int dexcr;
+static unsigned int hdexcr;
+static unsigned int effective;
+
+static void print_list(const char *list[], size_t len)
+{
+	for (size_t i = 0; i < len; i++) {
+		printf("%s", list[i]);
+		if (i + 1 < len)
+			printf(", ");
+	}
+}
+
+static void print_dexcr(char *name, unsigned int bits)
+{
+	const char *enabled_aspects[ARRAY_SIZE(aspects) + 1] = {NULL};
+	size_t j = 0;
+
+	printf("%s: 0x%08x", name, bits);
+
+	if (bits == 0) {
+		printf("\n");
+		return;
+	}
+
+	for (size_t i = 0; i < ARRAY_SIZE(aspects); i++) {
+		unsigned int mask = DEXCR_PR_BIT(aspects[i].index);
+
+		if (bits & mask) {
+			enabled_aspects[j++] = aspects[i].name;
+			bits &= ~mask;
+		}
+	}
+
+	if (bits)
+		enabled_aspects[j++] = "unknown";
+
+	printf(" (");
+	print_list(enabled_aspects, j);
+	printf(")\n");
+}
+
+static void print_aspect(const struct dexcr_aspect *aspect)
+{
+	const char *attributes[8] = {NULL};
+	size_t j = 0;
+	unsigned long mask;
+
+	mask = DEXCR_PR_BIT(aspect->index);
+	if (dexcr & mask)
+		attributes[j++] = "set";
+	if (hdexcr & mask)
+		attributes[j++] = "set (hypervisor)";
+	if (!(effective & mask))
+		attributes[j++] = "clear";
+
+	printf("%12s %c (%d): ", aspect->name, effective & mask ? '*' : ' ', aspect->index);
+	print_list(attributes, j);
+	printf("  \t(%s)\n", aspect->desc);
+}
+
+static void print_aspect_config(const struct dexcr_aspect *aspect)
+{
+	const char *reason = NULL;
+	const char *reason_hyp = NULL;
+	const char *reason_prctl = "no prctl";
+	bool actual = effective & DEXCR_PR_BIT(aspect->index);
+	bool expected = actual;  /* Assume it's fine if we don't expect a specific set/clear value */
+
+	if (actual)
+		reason = "set by unknown";
+	else
+		reason = "cleared by unknown";
+
+	if (aspect->prctl != -1) {
+		int ctrl = pr_get_dexcr(aspect->prctl);
+
+		if (ctrl < 0) {
+			reason_prctl = "failed to read prctl";
+		} else {
+			if (ctrl & PR_PPC_DEXCR_CTRL_SET) {
+				reason_prctl = "set by prctl";
+				expected = true;
+			} else if (ctrl & PR_PPC_DEXCR_CTRL_CLEAR) {
+				reason_prctl = "cleared by prctl";
+				expected = false;
+			} else {
+				reason_prctl = "unknown prctl";
+			}
+
+			reason = reason_prctl;
+		}
+	}
+
+	if (hdexcr & DEXCR_PR_BIT(aspect->index)) {
+		reason_hyp = "set by hypervisor";
+		reason = reason_hyp;
+		expected = true;
+	} else {
+		reason_hyp = "not modified by hypervisor";
+	}
+
+	printf("%12s (%d): %-28s (%s, %s)\n",
+	       aspect->name,
+	       aspect->index,
+	       reason,
+	       reason_hyp,
+	       reason_prctl);
+
+	/*
+	 * The checks are not atomic, so this can technically trigger if the
+	 * hypervisor makes a change while we are checking each source. It's
+	 * far more likely to be a bug if we see this though.
+	 */
+	if (actual != expected)
+		printf("                : ! actual %s does not match config\n", aspect->name);
+}
+
+int main(int argc, char *argv[])
+{
+	if (!dexcr_exists()) {
+		printf("DEXCR not detected on this hardware\n");
+		return 1;
+	}
+
+	dexcr = get_dexcr(DEXCR);
+	hdexcr = get_dexcr(HDEXCR);
+	effective = dexcr | hdexcr;
+
+	printf("current status:\n");
+
+	print_dexcr("    DEXCR", dexcr);
+	print_dexcr("   HDEXCR", hdexcr);
+	print_dexcr("Effective", effective);
+	printf("\n");
+
+	for (size_t i = 0; i < ARRAY_SIZE(aspects); i++)
+		print_aspect(&aspects[i]);
+	printf("\n");
+
+	if (effective & DEXCR_PR_NPHIE) {
+		printf("DEXCR[NPHIE] enabled: hashst/hashchk ");
+		if (hashchk_triggers())
+			printf("working\n");
+		else
+			printf("failed to trigger\n");
+	} else {
+		printf("DEXCR[NPHIE] disabled: hashst/hashchk ");
+		if (hashchk_triggers())
+			printf("unexpectedly triggered\n");
+		else
+			printf("ignored\n");
+	}
+	printf("\n");
+
+	printf("configuration:\n");
+	for (size_t i = 0; i < ARRAY_SIZE(aspects); i++)
+		print_aspect_config(&aspects[i]);
+	printf("\n");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/dexcr/settings b/tools/testing/selftests/powerpc/dexcr/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dexcr/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/dscr/.gitignore b/tools/testing/selftests/powerpc/dscr/.gitignore
index b585c6c1564a..1d08b15af697 100644
--- a/tools/testing/selftests/powerpc/dscr/.gitignore
+++ b/tools/testing/selftests/powerpc/dscr/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 dscr_default_test
 dscr_explicit_test
 dscr_inherit_exec_test
diff --git a/tools/testing/selftests/powerpc/dscr/Makefile b/tools/testing/selftests/powerpc/dscr/Makefile
index 49327ee84e3a..9fa9cb5bd989 100644
--- a/tools/testing/selftests/powerpc/dscr/Makefile
+++ b/tools/testing/selftests/powerpc/dscr/Makefile
@@ -1,14 +1,13 @@
-TEST_PROGS := dscr_default_test dscr_explicit_test dscr_user_test	\
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := dscr_default_test dscr_explicit_test dscr_user_test	\
 	      dscr_inherit_test dscr_inherit_exec_test dscr_sysfs_test	\
 	      dscr_sysfs_thread_test
 
-dscr_default_test: LDLIBS += -lpthread
-
-all: $(TEST_PROGS)
-
-$(TEST_PROGS): ../harness.c
-
+top_srcdir = ../../../../..
 include ../../lib.mk
+include ../flags.mk
+
+$(OUTPUT)/dscr_default_test: LDLIBS += -lpthread
+$(OUTPUT)/dscr_explicit_test: LDLIBS += -lpthread
 
-clean:
-	rm -f $(TEST_PROGS) *.o
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/dscr/dscr.h b/tools/testing/selftests/powerpc/dscr/dscr.h
index a36af1b2c2bb..b281659071e8 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr.h
+++ b/tools/testing/selftests/powerpc/dscr/dscr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * POWER Data Stream Control Register (DSCR)
  *
@@ -6,10 +7,6 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #ifndef _SELFTESTS_POWERPC_DSCR_DSCR_H
 #define _SELFTESTS_POWERPC_DSCR_DSCR_H
@@ -26,10 +23,9 @@
 #include <sys/stat.h>
 #include <sys/wait.h>
 
+#include "reg.h"
 #include "utils.h"
 
-#define SPRN_DSCR	0x11	/* Privilege state SPR */
-#define SPRN_DSCR_USR	0x03	/* Problem state SPR */
 #define THREADS		100	/* Max threads */
 #define COUNT		100	/* Max iterations */
 #define DSCR_MAX	16	/* Max DSCR value */
@@ -41,87 +37,53 @@
 #define rmb()  asm volatile("lwsync":::"memory")
 #define wmb()  asm volatile("lwsync":::"memory")
 
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
 
 /* Prilvilege state DSCR access */
 inline unsigned long get_dscr(void)
 {
-	unsigned long ret;
-
-	asm volatile("mfspr %0,%1" : "=r" (ret): "i" (SPRN_DSCR));
-
-	return ret;
+	return mfspr(SPRN_DSCR_PRIV);
 }
 
 inline void set_dscr(unsigned long val)
 {
-	asm volatile("mtspr %1,%0" : : "r" (val), "i" (SPRN_DSCR));
+	mtspr(SPRN_DSCR_PRIV, val);
 }
 
 /* Problem state DSCR access */
 inline unsigned long get_dscr_usr(void)
 {
-	unsigned long ret;
-
-	asm volatile("mfspr %0,%1" : "=r" (ret): "i" (SPRN_DSCR_USR));
-
-	return ret;
+	return mfspr(SPRN_DSCR);
 }
 
 inline void set_dscr_usr(unsigned long val)
 {
-	asm volatile("mtspr %1,%0" : : "r" (val), "i" (SPRN_DSCR_USR));
+	mtspr(SPRN_DSCR, val);
 }
 
 /* Default DSCR access */
 unsigned long get_default_dscr(void)
 {
-	int fd = -1, ret;
-	char buf[16];
+	int err;
 	unsigned long val;
 
-	if (fd == -1) {
-		fd = open(DSCR_DEFAULT, O_RDONLY);
-		if (fd == -1) {
-			perror("open() failed");
-			exit(1);
-		}
-	}
-	memset(buf, 0, sizeof(buf));
-	lseek(fd, 0, SEEK_SET);
-	ret = read(fd, buf, sizeof(buf));
-	if (ret == -1) {
+	err = read_ulong(DSCR_DEFAULT, &val, 16);
+	if (err) {
 		perror("read() failed");
 		exit(1);
 	}
-	sscanf(buf, "%lx", &val);
-	close(fd);
 	return val;
 }
 
 void set_default_dscr(unsigned long val)
 {
-	int fd = -1, ret;
-	char buf[16];
+	int err;
 
-	if (fd == -1) {
-		fd = open(DSCR_DEFAULT, O_RDWR);
-		if (fd == -1) {
-			perror("open() failed");
-			exit(1);
-		}
-	}
-	sprintf(buf, "%lx\n", val);
-	ret = write(fd, buf, strlen(buf));
-	if (ret == -1) {
+	err = write_ulong(DSCR_DEFAULT, val, 16);
+	if (err) {
 		perror("write() failed");
 		exit(1);
 	}
-	close(fd);
 }
 
-double uniform_deviate(int seed)
-{
-	return seed * (1.0 / (RAND_MAX + 1.0));
-}
 #endif	/* _SELFTESTS_POWERPC_DSCR_DSCR_H */
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
index df17c3bab0a7..60ab02525b79 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) default test
  *
@@ -7,121 +8,162 @@
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
+
+#define _GNU_SOURCE
+
 #include "dscr.h"
 
-static unsigned long dscr;		/* System DSCR default */
-static unsigned long sequence;
-static unsigned long result[THREADS];
+#include <pthread.h>
+#include <semaphore.h>
+#include <unistd.h>
 
-static void *do_test(void *in)
+static void *dscr_default_lockstep_writer(void *arg)
 {
-	unsigned long thread = (unsigned long)in;
-	unsigned long i;
+	sem_t *reader_sem = (sem_t *)arg;
+	sem_t *writer_sem = (sem_t *)arg + 1;
+	unsigned long expected_dscr = 0;
 
-	for (i = 0; i < COUNT; i++) {
-		unsigned long d, cur_dscr, cur_dscr_usr;
-		unsigned long s1, s2;
+	for (int i = 0; i < COUNT; i++) {
+		FAIL_IF_EXIT(sem_wait(writer_sem));
 
-		s1 = ACCESS_ONCE(sequence);
-		if (s1 & 1)
-			continue;
-		rmb();
+		set_default_dscr(expected_dscr);
+		expected_dscr = (expected_dscr + 1) % DSCR_MAX;
 
-		d = dscr;
-		cur_dscr = get_dscr();
-		cur_dscr_usr = get_dscr_usr();
+		FAIL_IF_EXIT(sem_post(reader_sem));
+	}
 
-		rmb();
-		s2 = sequence;
+	return NULL;
+}
 
-		if (s1 != s2)
-			continue;
+int dscr_default_lockstep_test(void)
+{
+	pthread_t writer;
+	sem_t rw_semaphores[2];
+	sem_t *reader_sem = &rw_semaphores[0];
+	sem_t *writer_sem = &rw_semaphores[1];
+	unsigned long expected_dscr = 0;
 
-		if (cur_dscr != d) {
-			fprintf(stderr, "thread %ld kernel DSCR should be %ld "
-				"but is %ld\n", thread, d, cur_dscr);
-			result[thread] = 1;
-			pthread_exit(&result[thread]);
-		}
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
 
-		if (cur_dscr_usr != d) {
-			fprintf(stderr, "thread %ld user DSCR should be %ld "
-				"but is %ld\n", thread, d, cur_dscr_usr);
-			result[thread] = 1;
-			pthread_exit(&result[thread]);
-		}
+	FAIL_IF(sem_init(reader_sem, 0, 0));
+	FAIL_IF(sem_init(writer_sem, 0, 1));  /* writer starts first */
+	FAIL_IF(bind_to_cpu(BIND_CPU_ANY) < 0);
+	FAIL_IF(pthread_create(&writer, NULL, dscr_default_lockstep_writer, (void *)rw_semaphores));
+
+	for (int i = 0; i < COUNT ; i++) {
+		FAIL_IF(sem_wait(reader_sem));
+
+		FAIL_IF(get_dscr() != expected_dscr);
+		FAIL_IF(get_dscr_usr() != expected_dscr);
+
+		expected_dscr = (expected_dscr + 1) % DSCR_MAX;
+
+		FAIL_IF(sem_post(writer_sem));
 	}
-	result[thread] = 0;
-	pthread_exit(&result[thread]);
-}
 
-int dscr_default(void)
-{
-	pthread_t threads[THREADS];
-	unsigned long i, *status[THREADS];
-	unsigned long orig_dscr_default;
+	FAIL_IF(pthread_join(writer, NULL));
+	FAIL_IF(sem_destroy(reader_sem));
+	FAIL_IF(sem_destroy(writer_sem));
 
-	orig_dscr_default = get_default_dscr();
+	return 0;
+}
 
-	/* Initial DSCR default */
-	dscr = 1;
-	set_default_dscr(dscr);
+struct random_thread_args {
+	pthread_t thread_id;
+	unsigned long *expected_system_dscr;
+	pthread_rwlock_t *rw_lock;
+	pthread_barrier_t *barrier;
+};
 
-	/* Spawn all testing threads */
-	for (i = 0; i < THREADS; i++) {
-		if (pthread_create(&threads[i], NULL, do_test, (void *)i)) {
-			perror("pthread_create() failed");
-			goto fail;
+static void *dscr_default_random_thread(void *in)
+{
+	struct random_thread_args *args = (struct random_thread_args *)in;
+	unsigned long *expected_dscr_p = args->expected_system_dscr;
+	pthread_rwlock_t *rw_lock = args->rw_lock;
+	int err;
+
+	srand(gettid());
+
+	err = pthread_barrier_wait(args->barrier);
+	FAIL_IF_EXIT(err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD);
+
+	for (int i = 0; i < COUNT; i++) {
+		unsigned long expected_dscr;
+		unsigned long current_dscr;
+		unsigned long current_dscr_usr;
+
+		FAIL_IF_EXIT(pthread_rwlock_rdlock(rw_lock));
+		expected_dscr = *expected_dscr_p;
+		current_dscr = get_dscr();
+		current_dscr_usr = get_dscr_usr();
+		FAIL_IF_EXIT(pthread_rwlock_unlock(rw_lock));
+
+		FAIL_IF_EXIT(current_dscr != expected_dscr);
+		FAIL_IF_EXIT(current_dscr_usr != expected_dscr);
+
+		if (rand() % 10 == 0) {
+			unsigned long next_dscr;
+
+			FAIL_IF_EXIT(pthread_rwlock_wrlock(rw_lock));
+			next_dscr = (*expected_dscr_p + 1) % DSCR_MAX;
+			set_default_dscr(next_dscr);
+			*expected_dscr_p = next_dscr;
+			FAIL_IF_EXIT(pthread_rwlock_unlock(rw_lock));
 		}
 	}
 
-	srand(getpid());
+	pthread_exit((void *)0);
+}
 
-	/* Keep changing the DSCR default */
-	for (i = 0; i < COUNT; i++) {
-		double ret = uniform_deviate(rand());
+int dscr_default_random_test(void)
+{
+	struct random_thread_args threads[THREADS];
+	unsigned long expected_system_dscr = 0;
+	pthread_rwlockattr_t rwlock_attr;
+	pthread_rwlock_t rw_lock;
+	pthread_barrier_t barrier;
 
-		if (ret < 0.0001) {
-			sequence++;
-			wmb();
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
 
-			dscr++;
-			if (dscr > DSCR_MAX)
-				dscr = 0;
+	FAIL_IF(pthread_rwlockattr_setkind_np(&rwlock_attr,
+					      PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP));
+	FAIL_IF(pthread_rwlock_init(&rw_lock, &rwlock_attr));
+	FAIL_IF(pthread_barrier_init(&barrier, NULL, THREADS));
 
-			set_default_dscr(dscr);
+	set_default_dscr(expected_system_dscr);
 
-			wmb();
-			sequence++;
-		}
+	for (int i = 0; i < THREADS; i++) {
+		threads[i].expected_system_dscr = &expected_system_dscr;
+		threads[i].rw_lock = &rw_lock;
+		threads[i].barrier = &barrier;
+
+		FAIL_IF(pthread_create(&threads[i].thread_id, NULL,
+				       dscr_default_random_thread, (void *)&threads[i]));
 	}
 
-	/* Individual testing thread exit status */
-	for (i = 0; i < THREADS; i++) {
-		if (pthread_join(threads[i], (void **)&(status[i]))) {
-			perror("pthread_join() failed");
-			goto fail;
-		}
+	for (int i = 0; i < THREADS; i++)
+		FAIL_IF(pthread_join(threads[i].thread_id, NULL));
+
+	FAIL_IF(pthread_barrier_destroy(&barrier));
+	FAIL_IF(pthread_rwlock_destroy(&rw_lock));
 
-		if (*status[i]) {
-			printf("%ldth thread failed to join with %ld status\n",
-								i, *status[i]);
-			goto fail;
-		}
-	}
-	set_default_dscr(orig_dscr_default);
 	return 0;
-fail:
-	set_default_dscr(orig_dscr_default);
-	return 1;
 }
 
 int main(int argc, char *argv[])
 {
-	return test_harness(dscr_default, "dscr_default_test");
+	unsigned long orig_dscr_default = 0;
+	int err = 0;
+
+	if (have_hwcap2(PPC_FEATURE2_DSCR))
+		orig_dscr_default = get_default_dscr();
+
+	err |= test_harness(dscr_default_lockstep_test, "dscr_default_lockstep_test");
+	err |= test_harness(dscr_default_random_test, "dscr_default_random_test");
+
+	if (have_hwcap2(PPC_FEATURE2_DSCR))
+		set_default_dscr(orig_dscr_default);
+
+	return err;
 }
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c b/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
index ad9c3ec26048..e2268e9183a8 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) explicit test
  *
@@ -6,66 +7,167 @@
  * privilege state SPR and the problem state SPR for this purpose.
  *
  * When using the privilege state SPR, the instructions such as
- * mfspr or mtspr are priviledged and the kernel emulates them
- * for us. Instructions using problem state SPR can be exuecuted
+ * mfspr or mtspr are privileged and the kernel emulates them
+ * for us. Instructions using problem state SPR can be executed
  * directly without any emulation if the HW supports them. Else
  * they also get emulated by the kernel.
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
+
+#define _GNU_SOURCE
+
 #include "dscr.h"
+#include "utils.h"
 
-int dscr_explicit(void)
+#include <pthread.h>
+#include <sched.h>
+#include <semaphore.h>
+
+void *dscr_explicit_lockstep_thread(void *args)
 {
-	unsigned long i, dscr = 0;
+	sem_t *prev = (sem_t *)args;
+	sem_t *next = (sem_t *)args + 1;
+	unsigned long expected_dscr = 0;
 
-	srand(getpid());
-	set_dscr(dscr);
+	set_dscr(expected_dscr);
+	srand(gettid());
 
-	for (i = 0; i < COUNT; i++) {
-		unsigned long cur_dscr, cur_dscr_usr;
-		double ret = uniform_deviate(rand());
+	for (int i = 0; i < COUNT; i++) {
+		FAIL_IF_EXIT(sem_wait(prev));
 
-		if (ret < 0.001) {
-			dscr++;
-			if (dscr > DSCR_MAX)
-				dscr = 0;
+		FAIL_IF_EXIT(expected_dscr != get_dscr());
+		FAIL_IF_EXIT(expected_dscr != get_dscr_usr());
 
-			set_dscr(dscr);
-		}
+		expected_dscr = (expected_dscr + 1) % DSCR_MAX;
+		set_dscr(expected_dscr);
 
-		cur_dscr = get_dscr();
-		if (cur_dscr != dscr) {
-			fprintf(stderr, "Kernel DSCR should be %ld but "
-					"is %ld\n", dscr, cur_dscr);
-			return 1;
-		}
+		FAIL_IF_EXIT(sem_post(next));
+	}
+
+	return NULL;
+}
+
+int dscr_explicit_lockstep_test(void)
+{
+	pthread_t thread;
+	sem_t semaphores[2];
+	sem_t *prev = &semaphores[1];  /* reversed prev/next than for the other thread */
+	sem_t *next = &semaphores[0];
+	unsigned long expected_dscr = 0;
+
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
 
-		ret = uniform_deviate(rand());
-		if (ret < 0.001) {
-			dscr++;
-			if (dscr > DSCR_MAX)
-				dscr = 0;
+	srand(gettid());
+	set_dscr(expected_dscr);
 
-			set_dscr_usr(dscr);
+	FAIL_IF(sem_init(prev, 0, 0));
+	FAIL_IF(sem_init(next, 0, 1));  /* other thread starts first */
+	FAIL_IF(bind_to_cpu(BIND_CPU_ANY) < 0);
+	FAIL_IF(pthread_create(&thread, NULL, dscr_explicit_lockstep_thread, (void *)semaphores));
+
+	for (int i = 0; i < COUNT; i++) {
+		FAIL_IF(sem_wait(prev));
+
+		FAIL_IF(expected_dscr != get_dscr());
+		FAIL_IF(expected_dscr != get_dscr_usr());
+
+		expected_dscr = (expected_dscr - 1) % DSCR_MAX;
+		set_dscr(expected_dscr);
+
+		FAIL_IF(sem_post(next));
+	}
+
+	FAIL_IF(pthread_join(thread, NULL));
+	FAIL_IF(sem_destroy(prev));
+	FAIL_IF(sem_destroy(next));
+
+	return 0;
+}
+
+struct random_thread_args {
+	pthread_t thread_id;
+	bool do_yields;
+	pthread_barrier_t *barrier;
+};
+
+void *dscr_explicit_random_thread(void *in)
+{
+	struct random_thread_args *args = (struct random_thread_args *)in;
+	unsigned long expected_dscr = 0;
+	int err;
+
+	srand(gettid());
+
+	err = pthread_barrier_wait(args->barrier);
+	FAIL_IF_EXIT(err != 0 && err != PTHREAD_BARRIER_SERIAL_THREAD);
+
+	for (int i = 0; i < COUNT; i++) {
+		expected_dscr = rand() % DSCR_MAX;
+		set_dscr(expected_dscr);
+
+		for (int j = rand() % 5; j > 0; --j) {
+			FAIL_IF_EXIT(get_dscr() != expected_dscr);
+			FAIL_IF_EXIT(get_dscr_usr() != expected_dscr);
+
+			if (args->do_yields && rand() % 2)
+				sched_yield();
 		}
 
-		cur_dscr_usr = get_dscr_usr();
-		if (cur_dscr_usr != dscr) {
-			fprintf(stderr, "User DSCR should be %ld but "
-					"is %ld\n", dscr, cur_dscr_usr);
-			return 1;
+		expected_dscr = rand() % DSCR_MAX;
+		set_dscr_usr(expected_dscr);
+
+		for (int j = rand() % 5; j > 0; --j) {
+			FAIL_IF_EXIT(get_dscr() != expected_dscr);
+			FAIL_IF_EXIT(get_dscr_usr() != expected_dscr);
+
+			if (args->do_yields && rand() % 2)
+				sched_yield();
 		}
 	}
+
+	return NULL;
+}
+
+int dscr_explicit_random_test(void)
+{
+	struct random_thread_args threads[THREADS];
+	pthread_barrier_t barrier;
+
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
+
+	FAIL_IF(pthread_barrier_init(&barrier, NULL, THREADS));
+
+	for (int i = 0; i < THREADS; i++) {
+		threads[i].do_yields = i % 2 == 0;
+		threads[i].barrier = &barrier;
+
+		FAIL_IF(pthread_create(&threads[i].thread_id, NULL,
+				       dscr_explicit_random_thread, (void *)&threads[i]));
+	}
+
+	for (int i = 0; i < THREADS; i++)
+		FAIL_IF(pthread_join(threads[i].thread_id, NULL));
+
+	FAIL_IF(pthread_barrier_destroy(&barrier));
+
 	return 0;
 }
 
 int main(int argc, char *argv[])
 {
-	return test_harness(dscr_explicit, "dscr_explicit_test");
+	unsigned long orig_dscr_default = 0;
+	int err = 0;
+
+	if (have_hwcap2(PPC_FEATURE2_DSCR))
+		orig_dscr_default = get_default_dscr();
+
+	err |= test_harness(dscr_explicit_lockstep_test, "dscr_explicit_lockstep_test");
+	err |= test_harness(dscr_explicit_random_test, "dscr_explicit_random_test");
+
+	if (have_hwcap2(PPC_FEATURE2_DSCR))
+		set_default_dscr(orig_dscr_default);
+
+	return err;
 }
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c b/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
index 8265504de571..c6a81b2d6b91 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) fork exec test
  *
@@ -5,21 +6,17 @@
  * verifies that the child is using the changed DSCR using mfspr.
  *
  * When using the privilege state SPR, the instructions such as
- * mfspr or mtspr are priviledged and the kernel emulates them
- * for us. Instructions using problem state SPR can be exuecuted
+ * mfspr or mtspr are privileged and the kernel emulates them
+ * for us. Instructions using problem state SPR can be executed
  * directly without any emulation if the HW supports them. Else
  * they also get emulated by the kernel.
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
-static char prog[LEN_MAX];
+static char *prog;
 
 static void do_exec(unsigned long parent_dscr)
 {
@@ -47,6 +44,8 @@ int dscr_inherit_exec(void)
 	unsigned long i, dscr = 0;
 	pid_t pid;
 
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
+
 	for (i = 0; i < COUNT; i++) {
 		dscr++;
 		if (dscr > DSCR_MAX)
@@ -60,14 +59,6 @@ int dscr_inherit_exec(void)
 		else
 			set_dscr(dscr);
 
-		/*
-		 * XXX: Force a context switch out so that DSCR
-		 * current value is copied into the thread struct
-		 * which is required for the child to inherit the
-		 * changed value.
-		 */
-		sleep(1);
-
 		pid = fork();
 		if (pid == -1) {
 			perror("fork() failed");
@@ -112,6 +103,6 @@ int main(int argc, char *argv[])
 		exit(1);
 	}
 
-	strncpy(prog, argv[0], strlen(argv[0]));
+	prog = argv[0];
 	return test_harness(dscr_inherit_exec, "dscr_inherit_exec_test");
 }
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c b/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
index 4e414caf7f40..68ce328e813e 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) fork test
  *
@@ -6,17 +7,13 @@
  * value using mfspr.
  *
  * When using the privilege state SPR, the instructions such as
- * mfspr or mtspr are priviledged and the kernel emulates them
- * for us. Instructions using problem state SPR can be exuecuted
+ * mfspr or mtspr are privileged and the kernel emulates them
+ * for us. Instructions using problem state SPR can be executed
  * directly without any emulation if the HW supports them. Else
  * they also get emulated by the kernel.
  *
  * Copyright 2012, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
@@ -25,6 +22,8 @@ int dscr_inherit(void)
 	unsigned long i, dscr = 0;
 	pid_t pid;
 
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
+
 	srand(getpid());
 	set_dscr(dscr);
 
@@ -40,14 +39,6 @@ int dscr_inherit(void)
 		else
 			set_dscr(dscr);
 
-		/*
-		 * XXX: Force a context switch out so that DSCR
-		 * current value is copied into the thread struct
-		 * which is required for the child to inherit the
-		 * changed value.
-		 */
-		sleep(1);
-
 		pid = fork();
 		if (pid == -1) {
 			perror("fork() failed");
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
index 17fb1b43c320..e7cd0d6b1fad 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) sysfs interface test
  *
@@ -6,35 +7,21 @@
  * well verified from their sysfs interfaces.
  *
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
 static int check_cpu_dscr_default(char *file, unsigned long val)
 {
-	char buf[10];
-	int fd, rc;
-
-	fd = open(file, O_RDWR);
-	if (fd == -1) {
-		perror("open() failed");
-		return 1;
-	}
+	unsigned long cpu_dscr;
+	int err;
 
-	rc = read(fd, buf, sizeof(buf));
-	if (rc == -1) {
-		perror("read() failed");
-		return 1;
-	}
-	close(fd);
+	err = read_ulong(file, &cpu_dscr, 16);
+	if (err)
+		return err;
 
-	buf[rc] = '\0';
-	if (strtol(buf, NULL, 16) != val) {
+	if (cpu_dscr != val) {
 		printf("DSCR match failed: %ld (system) %ld (cpu)\n",
-					val, strtol(buf, NULL, 16));
+					val, cpu_dscr);
 		return 1;
 	}
 	return 0;
@@ -53,6 +40,8 @@ static int check_all_cpu_dscr_defaults(unsigned long val)
 	}
 
 	while ((dp = readdir(sysfs))) {
+		int len;
+
 		if (!(dp->d_type & DT_DIR))
 			continue;
 		if (!strcmp(dp->d_name, "cpuidle"))
@@ -60,12 +49,16 @@ static int check_all_cpu_dscr_defaults(unsigned long val)
 		if (!strstr(dp->d_name, "cpu"))
 			continue;
 
-		sprintf(file, "%s%s/dscr", CPU_PATH, dp->d_name);
+		len = snprintf(file, LEN_MAX, "%s%s/dscr", CPU_PATH, dp->d_name);
+		if (len >= LEN_MAX)
+			continue;
 		if (access(file, F_OK))
 			continue;
 
-		if (check_cpu_dscr_default(file, val))
+		if (check_cpu_dscr_default(file, val)) {
+			closedir(sysfs);
 			return 1;
+		}
 	}
 	closedir(sysfs);
 	return 0;
@@ -74,15 +67,14 @@ static int check_all_cpu_dscr_defaults(unsigned long val)
 int dscr_sysfs(void)
 {
 	unsigned long orig_dscr_default;
-	int i, j;
+
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
 
 	orig_dscr_default = get_default_dscr();
-	for (i = 0; i < COUNT; i++) {
-		for (j = 0; j < DSCR_MAX; j++) {
-			set_default_dscr(j);
-			if (check_all_cpu_dscr_defaults(j))
-				goto fail;
-		}
+	for (int i = 0; i < DSCR_MAX; i++) {
+		set_default_dscr(i);
+		if (check_all_cpu_dscr_defaults(i))
+			goto fail;
 	}
 	set_default_dscr(orig_dscr_default);
 	return 0;
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
index ad97b592eccc..191ed126f118 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) sysfs thread test
  *
@@ -7,10 +8,6 @@
  * executing on individual CPUs on the system.
  *
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #define _GNU_SOURCE
 #include "dscr.h"
@@ -59,6 +56,8 @@ int dscr_sysfs_thread(void)
 	unsigned long orig_dscr_default;
 	int i, j;
 
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
+
 	orig_dscr_default = get_default_dscr();
 	for (i = 0; i < COUNT; i++) {
 		for (j = 0; j < DSCR_MAX; j++) {
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_user_test.c b/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
index 77d16b5e7dca..67bb872a246a 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_user_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * POWER Data Stream Control Register (DSCR) SPR test
  *
@@ -7,17 +8,13 @@
  * numbers.
  *
  * When using the privilege state SPR, the instructions such as
- * mfspr or mtspr are priviledged and the kernel emulates them
- * for us. Instructions using problem state SPR can be exuecuted
+ * mfspr or mtspr are privileged and the kernel emulates them
+ * for us. Instructions using problem state SPR can be executed
  * directly without any emulation if the HW supports them. Else
  * they also get emulated by the kernel.
  *
  * Copyright 2013, Anton Blanchard, IBM Corporation.
  * Copyright 2015, Anshuman Khandual, IBM Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 #include "dscr.h"
 
@@ -39,6 +36,8 @@ int dscr_user(void)
 {
 	int i;
 
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_DSCR));
+
 	check_dscr("");
 
 	for (i = 0; i < COUNT; i++) {
diff --git a/tools/testing/selftests/powerpc/dscr/settings b/tools/testing/selftests/powerpc/dscr/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/dscr/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/eeh/Makefile b/tools/testing/selftests/powerpc/eeh/Makefile
new file mode 100644
index 000000000000..70797716f2b5
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+noarg:
+	$(MAKE) -C ../
+
+TEST_PROGS := eeh-basic.sh
+TEST_FILES := eeh-functions.sh settings
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
diff --git a/tools/testing/selftests/powerpc/eeh/eeh-basic.sh b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh
new file mode 100755
index 000000000000..442b666ccdb5
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/eeh-basic.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+. ./eeh-functions.sh
+
+eeh_test_prep # NB: may exit
+
+pre_lspci=`mktemp`
+lspci > $pre_lspci
+
+# record the devices that we break in here. Assuming everything
+# goes to plan we should get them back once the recover process
+# is finished.
+devices=""
+
+# Build up a list of candidate devices.
+for dev in `ls -1 /sys/bus/pci/devices/ | grep '\.0$'` ; do
+	if ! eeh_can_break $dev ; then
+		continue;
+	fi
+
+	# Skip VFs for now since we don't have a reliable way to break them.
+	if [ -e "/sys/bus/pci/devices/$dev/physfn" ] ; then
+		echo "$dev, Skipped: virtfn"
+		continue;
+	fi
+
+	echo "$dev, Added"
+
+	# Add to this list of device to check
+	devices="$devices $dev"
+done
+
+dev_count="$(echo $devices | wc -w)"
+echo "Found ${dev_count} breakable devices..."
+
+failed=0
+for dev in $devices ; do
+	echo "Breaking $dev..."
+
+	if ! pe_ok $dev ; then
+		echo "Skipping $dev, Initial PE state is not ok"
+		failed="$((failed + 1))"
+		continue;
+	fi
+
+	if ! eeh_one_dev $dev ; then
+		failed="$((failed + 1))"
+	fi
+done
+
+echo "$failed devices failed to recover ($dev_count tested)"
+lspci | diff -u $pre_lspci -
+rm -f $pre_lspci
+
+test "$failed" -eq 0
+exit $?
diff --git a/tools/testing/selftests/powerpc/eeh/eeh-functions.sh b/tools/testing/selftests/powerpc/eeh/eeh-functions.sh
new file mode 100644
index 000000000000..70daa3925dcb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/eeh-functions.sh
@@ -0,0 +1,245 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+export KSELFTESTS_SKIP=4
+
+log() {
+	echo >/dev/stderr $*
+}
+
+pe_ok() {
+	local dev="$1"
+	local path="/sys/bus/pci/devices/$dev/eeh_pe_state"
+
+	# if a driver doesn't support the error handling callbacks then the
+	# device is recovered by removing and re-probing it. This causes the
+	# sysfs directory to disappear so read the PE state once and squash
+	# any potential error messages
+	local eeh_state="$(cat $path 2>/dev/null)"
+	if [ -z "$eeh_state" ]; then
+		return 1;
+	fi
+
+	local fw_state="$(echo $eeh_state | cut -d' ' -f1)"
+	local sw_state="$(echo $eeh_state | cut -d' ' -f2)"
+
+	# If EEH_PE_ISOLATED or EEH_PE_RECOVERING are set then the PE is in an
+	# error state or being recovered. Either way, not ok.
+	if [ "$((sw_state & 0x3))" -ne 0 ] ; then
+		return 1
+	fi
+
+	# A functioning PE should have the EEH_STATE_MMIO_ACTIVE and
+	# EEH_STATE_DMA_ACTIVE flags set. For some goddamn stupid reason
+	# the platform backends set these when the PE is in reset. The
+	# RECOVERING check above should stop any false positives though.
+	if [ "$((fw_state & 0x18))" -ne "$((0x18))" ] ; then
+		return 1
+	fi
+
+	return 0;
+}
+
+eeh_supported() {
+	test -e /proc/powerpc/eeh && \
+	grep -q 'EEH Subsystem is enabled' /proc/powerpc/eeh
+}
+
+eeh_test_prep() {
+	if ! eeh_supported ; then
+		echo "EEH not supported on this system, skipping"
+		exit $KSELFTESTS_SKIP;
+	fi
+
+	if [ ! -e "/sys/kernel/debug/powerpc/eeh_dev_check" ] && \
+	   [ ! -e "/sys/kernel/debug/powerpc/eeh_dev_break" ] ; then
+		log "debugfs EEH testing files are missing. Is debugfs mounted?"
+		exit $KSELFTESTS_SKIP;
+	fi
+
+	# Bump the max freeze count to something absurd so we don't
+	# trip over it while breaking things.
+	echo 5000 > /sys/kernel/debug/powerpc/eeh_max_freezes
+}
+
+eeh_can_break() {
+	# skip bridges since we can't recover them (yet...)
+	if [ -e "/sys/bus/pci/devices/$dev/pci_bus" ] ; then
+		log "$dev, Skipped: bridge"
+		return 1;
+	fi
+
+	# The ahci driver doesn't support error recovery. If the ahci device
+	# happens to be hosting the root filesystem, and then we go and break
+	# it the system will generally go down. We should probably fix that
+	# at some point
+	if [ "ahci" = "$(basename $(realpath /sys/bus/pci/devices/$dev/driver))" ] ; then
+		log "$dev, Skipped: ahci doesn't support recovery"
+		return 1;
+	fi
+
+	# Don't inject errosr into an already-frozen PE. This happens with
+	# PEs that contain multiple PCI devices (e.g. multi-function cards)
+	# and injecting new errors during the recovery process will probably
+	# result in the recovery failing and the device being marked as
+	# failed.
+	if ! pe_ok $dev ; then
+		log "$dev, Skipped: Bad initial PE state"
+		return 1;
+	fi
+
+	return 0
+}
+
+eeh_one_dev() {
+	local dev="$1"
+
+	# Using this function from the command line is sometimes useful for
+	# testing so check that the argument is a well-formed sysfs device
+	# name.
+	if ! test -e /sys/bus/pci/devices/$dev/ ; then
+		log "Error: '$dev' must be a sysfs device name (DDDD:BB:DD.F)"
+		return 1;
+	fi
+
+	# Break it
+	echo $dev >/sys/kernel/debug/powerpc/eeh_dev_break
+
+	# Force an EEH device check. If the kernel has already
+	# noticed the EEH (due to a driver poll or whatever), this
+	# is a no-op.
+	echo $dev >/sys/kernel/debug/powerpc/eeh_dev_check
+
+	# Default to a 60s timeout when waiting for a device to recover. This
+	# is an arbitrary default which can be overridden by setting the
+	# EEH_MAX_WAIT environmental variable when required.
+
+	# The current record holder for longest recovery time is:
+	#  "Adaptec Series 8 12G SAS/PCIe 3" at 39 seconds
+	max_wait=${EEH_MAX_WAIT:=60}
+
+	for i in `seq 0 ${max_wait}` ; do
+		if pe_ok $dev ; then
+			break;
+		fi
+		log "$dev, waited $i/${max_wait}"
+		sleep 1
+	done
+
+	if ! pe_ok $dev ; then
+		log "$dev, Failed to recover!"
+		return 1;
+	fi
+
+	log "$dev, Recovered after $i seconds"
+	return 0;
+}
+
+eeh_has_driver() {
+	test -e /sys/bus/pci/devices/$1/driver;
+	return $?
+}
+
+eeh_can_recover() {
+	# we'll get an IO error if the device's current driver doesn't support
+	# error recovery
+	echo $1 > '/sys/kernel/debug/powerpc/eeh_dev_can_recover' 2>/dev/null
+
+	return $?
+}
+
+eeh_find_all_pfs() {
+	devices=""
+
+	# SR-IOV on pseries requires hypervisor support, so check for that
+	is_pseries=""
+	if grep -q pSeries /proc/cpuinfo ; then
+		if [ ! -f /proc/device-tree/rtas/ibm,open-sriov-allow-unfreeze ] ||
+		   [ ! -f /proc/device-tree/rtas/ibm,open-sriov-map-pe-number ] ; then
+			return 1;
+		fi
+
+		is_pseries="true"
+	fi
+
+	for dev in `ls -1 /sys/bus/pci/devices/` ; do
+		sysfs="/sys/bus/pci/devices/$dev"
+		if [ ! -e "$sysfs/sriov_numvfs" ] ; then
+			continue
+		fi
+
+		# skip unsupported PFs on pseries
+		if [ -z "$is_pseries" ] &&
+		   [ ! -f "$sysfs/of_node/ibm,is-open-sriov-pf" ] &&
+		   [ ! -f "$sysfs/of_node/ibm,open-sriov-vf-bar-info" ] ; then
+			continue;
+		fi
+
+		# no driver, no vfs
+		if ! eeh_has_driver $dev ; then
+			continue
+		fi
+
+		devices="$devices $dev"
+	done
+
+	if [ -z "$devices" ] ; then
+		return 1;
+	fi
+
+	echo $devices
+	return 0;
+}
+
+# attempts to enable one VF on each PF so we can do VF specific tests.
+# stdout: list of enabled VFs, one per line
+# return code: 0 if vfs are found, 1 otherwise
+eeh_enable_vfs() {
+	pf_list="$(eeh_find_all_pfs)"
+
+	vfs=0
+	for dev in $pf_list ; do
+		pf_sysfs="/sys/bus/pci/devices/$dev"
+
+		# make sure we have a single VF
+		echo 0 > "$pf_sysfs/sriov_numvfs"
+		echo 1 > "$pf_sysfs/sriov_numvfs"
+		if [ "$?" != 0 ] ; then
+			log "Unable to enable VFs on $pf, skipping"
+			continue;
+		fi
+
+		vf="$(basename $(realpath "$pf_sysfs/virtfn0"))"
+		if [ $? != 0 ] ; then
+			log "unable to find enabled vf on $pf"
+			echo 0 > "$pf_sysfs/sriov_numvfs"
+			continue;
+		fi
+
+		if ! eeh_can_break $vf ; then
+			log "skipping "
+
+			echo 0 > "$pf_sysfs/sriov_numvfs"
+			continue;
+		fi
+
+		vfs="$((vfs + 1))"
+		echo $vf
+	done
+
+	test "$vfs" != 0
+	return $?
+}
+
+eeh_disable_vfs() {
+	pf_list="$(eeh_find_all_pfs)"
+	if [ -z "$pf_list" ] ; then
+		return 1;
+	fi
+
+	for dev in $pf_list ; do
+		echo 0 > "/sys/bus/pci/devices/$dev/sriov_numvfs"
+	done
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/eeh/eeh-vf-aware.sh b/tools/testing/selftests/powerpc/eeh/eeh-vf-aware.sh
new file mode 100755
index 000000000000..874c11953bb6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/eeh-vf-aware.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+. ./eeh-functions.sh
+
+eeh_test_prep # NB: may exit
+
+vf_list="$(eeh_enable_vfs)";
+if $? != 0 ; then
+	log "No usable VFs found. Skipping EEH unaware VF test"
+	exit $KSELFTESTS_SKIP;
+fi
+
+log "Enabled VFs: $vf_list"
+
+tested=0
+passed=0
+for vf in $vf_list ; do
+	log "Testing $vf"
+
+	if ! eeh_can_recover $vf ; then
+		log "Driver for $vf doesn't support error recovery, skipping"
+		continue;
+	fi
+
+	tested="$((tested + 1))"
+
+	log "Breaking $vf..."
+	if ! eeh_one_dev $vf ; then
+		log "$vf failed to recover"
+		continue;
+	fi
+
+	passed="$((passed + 1))"
+done
+
+eeh_disable_vfs
+
+if [ "$tested" == 0 ] ; then
+	echo "No VFs with EEH aware drivers found, skipping"
+	exit $KSELFTESTS_SKIP
+fi
+
+test "$failed" != 0
+exit $?;
diff --git a/tools/testing/selftests/powerpc/eeh/eeh-vf-unaware.sh b/tools/testing/selftests/powerpc/eeh/eeh-vf-unaware.sh
new file mode 100755
index 000000000000..8a4c147b9d43
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/eeh-vf-unaware.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+. ./eeh-functions.sh
+
+eeh_test_prep # NB: may exit
+
+vf_list="$(eeh_enable_vfs)";
+if $? != 0 ; then
+	log "No usable VFs found. Skipping EEH unaware VF test"
+	exit $KSELFTESTS_SKIP;
+fi
+
+log "Enabled VFs: $vf_list"
+
+failed=0
+for vf in $vf_list ; do
+	log "Testing $vf"
+
+	if eeh_can_recover $vf ; then
+		log "Driver for $vf supports error recovery. Unbinding..."
+		echo "$vf" > /sys/bus/pci/devices/$vf/driver/unbind
+	fi
+
+	log "Breaking $vf..."
+	if ! eeh_one_dev $vf ; then
+		log "$vf failed to recover"
+		failed="$((failed + 1))"
+	fi
+done
+
+eeh_disable_vfs
+
+test "$failed" != 0
+exit $?;
diff --git a/tools/testing/selftests/powerpc/eeh/settings b/tools/testing/selftests/powerpc/eeh/settings
new file mode 100644
index 000000000000..694d70710ff0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/eeh/settings
@@ -0,0 +1 @@
+timeout=300
diff --git a/tools/testing/selftests/powerpc/flags.mk b/tools/testing/selftests/powerpc/flags.mk
new file mode 100644
index 000000000000..abb9e58d95c4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/flags.mk
@@ -0,0 +1,9 @@
+#This checks for any ENV variables and add those.
+
+ifeq ($(GIT_VERSION),)
+GIT_VERSION := $(shell git describe --always --long --dirty || echo "unknown")
+export GIT_VERSION
+endif
+
+CFLAGS := -std=gnu99 -O2 -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(selfdir)/powerpc/include $(USERCFLAGS)
+export CFLAGS
diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c
index f7997affd143..5876220d8ff2 100644
--- a/tools/testing/selftests/powerpc/harness.c
+++ b/tools/testing/selftests/powerpc/harness.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <errno.h>
@@ -19,11 +19,12 @@
 #include "subunit.h"
 #include "utils.h"
 
-#define TIMEOUT		120
 #define KILL_TIMEOUT	5
 
+/* Setting timeout to -1 disables the alarm */
+static uint64_t timeout = 120;
 
-int run_test(int (test_function)(void), char *name)
+int run_test(int (test_function)(void), const char *name)
 {
 	bool terminated;
 	int rc, status;
@@ -43,8 +44,9 @@ int run_test(int (test_function)(void), char *name)
 
 	setpgid(pid, pid);
 
-	/* Wake us up in timeout seconds */
-	alarm(TIMEOUT);
+	if (timeout != -1)
+		/* Wake us up in timeout seconds */
+		alarm(timeout);
 	terminated = false;
 
 wait:
@@ -85,77 +87,47 @@ wait:
 	return status;
 }
 
-static void alarm_handler(int signum)
+static void sig_handler(int signum)
 {
-	/* Jut wake us up from waitpid */
+	/* Just wake us up from waitpid */
 }
 
-static struct sigaction alarm_action = {
-	.sa_handler = alarm_handler,
+static struct sigaction sig_action = {
+	.sa_handler = sig_handler,
 };
 
-int test_harness(int (test_function)(void), char *name)
+void test_harness_set_timeout(uint64_t time)
+{
+	timeout = time;
+}
+
+int test_harness(int (test_function)(void), const char *name)
 {
 	int rc;
 
 	test_start(name);
 	test_set_git_version(GIT_VERSION);
 
-	if (sigaction(SIGALRM, &alarm_action, NULL)) {
-		perror("sigaction");
+	if (sigaction(SIGINT, &sig_action, NULL)) {
+		perror("sigaction (sigint)");
+		test_error(name);
+		return 1;
+	}
+
+	if (sigaction(SIGALRM, &sig_action, NULL)) {
+		perror("sigaction (sigalrm)");
 		test_error(name);
 		return 1;
 	}
 
 	rc = run_test(test_function, name);
 
-	if (rc == MAGIC_SKIP_RETURN_VALUE)
+	if (rc == MAGIC_SKIP_RETURN_VALUE) {
 		test_skip(name);
-	else
+		/* so that skipped test is not marked as failed */
+		rc = 0;
+	} else
 		test_finish(name, rc);
 
 	return rc;
 }
-
-static char auxv[4096];
-
-void *get_auxv_entry(int type)
-{
-	ElfW(auxv_t) *p;
-	void *result;
-	ssize_t num;
-	int fd;
-
-	fd = open("/proc/self/auxv", O_RDONLY);
-	if (fd == -1) {
-		perror("open");
-		return NULL;
-	}
-
-	result = NULL;
-
-	num = read(fd, auxv, sizeof(auxv));
-	if (num < 0) {
-		perror("read");
-		goto out;
-	}
-
-	if (num > sizeof(auxv)) {
-		printf("Overflowed auxv buffer\n");
-		goto out;
-	}
-
-	p = (ElfW(auxv_t) *)auxv;
-
-	while (p->a_type != AT_NULL) {
-		if (p->a_type == type) {
-			result = (void *)p->a_un.a_val;
-			break;
-		}
-
-		p++;
-	}
-out:
-	close(fd);
-	return result;
-}
diff --git a/tools/testing/selftests/powerpc/include/basic_asm.h b/tools/testing/selftests/powerpc/include/basic_asm.h
new file mode 100644
index 000000000000..26cde8ea1f49
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/basic_asm.h
@@ -0,0 +1,105 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
+#define _SELFTESTS_POWERPC_BASIC_ASM_H
+
+#include <ppc-asm.h>
+#include <asm/unistd.h>
+
+#ifdef __powerpc64__
+#define PPC_LL		ld
+#define PPC_STL		std
+#define PPC_STLU	stdu
+#else
+#define PPC_LL		lwz
+#define PPC_STL		stw
+#define PPC_STLU	stwu
+#endif
+
+#define LOAD_REG_IMMEDIATE(reg, expr) \
+	lis	reg, (expr)@highest;	\
+	ori	reg, reg, (expr)@higher;	\
+	rldicr	reg, reg, 32, 31;	\
+	oris	reg, reg, (expr)@high;	\
+	ori	reg, reg, (expr)@l;
+
+/*
+ * Note: These macros assume that variables being stored on the stack are
+ * sizeof(long), while this is usually the case it may not always be the
+ * case for each use case.
+ */
+#ifdef  __powerpc64__
+
+// ABIv2
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+#define STACK_FRAME_MIN_SIZE 32
+#define STACK_FRAME_TOC_POS  24
+#define __STACK_FRAME_PARAM(_param)  (32 + ((_param)*8))
+#define __STACK_FRAME_LOCAL(_num_params, _var_num)  \
+	((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*8))
+
+#else // ABIv1 below
+#define STACK_FRAME_MIN_SIZE 112
+#define STACK_FRAME_TOC_POS  40
+#define __STACK_FRAME_PARAM(i)  (48 + ((i)*8))
+
+/*
+ * Caveat: if a function passed more than 8 doublewords, the caller will have
+ * made more space... which would render the 112 incorrect.
+ */
+#define __STACK_FRAME_LOCAL(_num_params, _var_num)  \
+	(112 + ((_var_num)*8))
+
+
+#endif // ABIv2
+
+// Common 64-bit
+#define STACK_FRAME_LR_POS   16
+#define STACK_FRAME_CR_POS   8
+
+#else // 32-bit below
+
+#define STACK_FRAME_MIN_SIZE 16
+#define STACK_FRAME_LR_POS   4
+
+#define __STACK_FRAME_PARAM(_param)  (STACK_FRAME_MIN_SIZE + ((_param)*4))
+#define __STACK_FRAME_LOCAL(_num_params, _var_num)  \
+	((STACK_FRAME_PARAM(_num_params)) + ((_var_num)*4))
+
+#endif // __powerpc64__
+
+/* Parameter x saved to the stack */
+#define STACK_FRAME_PARAM(var)    __STACK_FRAME_PARAM(var)
+
+/* Local variable x saved to the stack after x parameters */
+#define STACK_FRAME_LOCAL(num_params, var)    \
+	__STACK_FRAME_LOCAL(num_params, var)
+
+/*
+ * It is very important to note here that _extra is the extra amount of
+ * stack space needed. This space can be accessed using STACK_FRAME_PARAM()
+ * or STACK_FRAME_LOCAL() macros.
+ *
+ * r1 and r2 are not defined in ppc-asm.h (instead they are defined as sp
+ * and toc). Kernel programmers tend to prefer rX even for r1 and r2, hence
+ * %1 and %r2. r0 is defined in ppc-asm.h and therefore %r0 gets
+ * preprocessed incorrectly, hence r0.
+ */
+#define PUSH_BASIC_STACK(_extra) \
+	mflr	 r0; \
+	PPC_STL	 r0, STACK_FRAME_LR_POS(%r1); \
+	PPC_STLU %r1, -(((_extra + 15) & ~15) + STACK_FRAME_MIN_SIZE)(%r1);
+
+#define POP_BASIC_STACK(_extra) \
+	addi	%r1, %r1, (((_extra + 15) & ~15) + STACK_FRAME_MIN_SIZE); \
+	PPC_LL	r0, STACK_FRAME_LR_POS(%r1); \
+	mtlr	r0;
+
+.macro OP_REGS op, reg_width, start_reg, end_reg, base_reg, base_reg_offset=0, skip=0
+	.set i, \start_reg
+	.rept (\end_reg - \start_reg + 1)
+	\op	i, (\reg_width * (i - \skip) + \base_reg_offset)(\base_reg)
+	.set i, i + 1
+	.endr
+.endm
+
+#endif /* _SELFTESTS_POWERPC_BASIC_ASM_H */
diff --git a/tools/testing/selftests/powerpc/include/fpu_asm.h b/tools/testing/selftests/powerpc/include/fpu_asm.h
new file mode 100644
index 000000000000..58ac2ce33505
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/fpu_asm.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_FPU_ASM_H
+#define _SELFTESTS_POWERPC_FPU_ASM_H
+#include "basic_asm.h"
+
+#define PUSH_FPU(stack_size) \
+	stfd	f31,(stack_size + STACK_FRAME_MIN_SIZE)(%r1); \
+	stfd	f30,(stack_size + STACK_FRAME_MIN_SIZE - 8)(%r1); \
+	stfd	f29,(stack_size + STACK_FRAME_MIN_SIZE - 16)(%r1); \
+	stfd	f28,(stack_size + STACK_FRAME_MIN_SIZE - 24)(%r1); \
+	stfd	f27,(stack_size + STACK_FRAME_MIN_SIZE - 32)(%r1); \
+	stfd	f26,(stack_size + STACK_FRAME_MIN_SIZE - 40)(%r1); \
+	stfd	f25,(stack_size + STACK_FRAME_MIN_SIZE - 48)(%r1); \
+	stfd	f24,(stack_size + STACK_FRAME_MIN_SIZE - 56)(%r1); \
+	stfd	f23,(stack_size + STACK_FRAME_MIN_SIZE - 64)(%r1); \
+	stfd	f22,(stack_size + STACK_FRAME_MIN_SIZE - 72)(%r1); \
+	stfd	f21,(stack_size + STACK_FRAME_MIN_SIZE - 80)(%r1); \
+	stfd	f20,(stack_size + STACK_FRAME_MIN_SIZE - 88)(%r1); \
+	stfd	f19,(stack_size + STACK_FRAME_MIN_SIZE - 96)(%r1); \
+	stfd	f18,(stack_size + STACK_FRAME_MIN_SIZE - 104)(%r1); \
+	stfd	f17,(stack_size + STACK_FRAME_MIN_SIZE - 112)(%r1); \
+	stfd	f16,(stack_size + STACK_FRAME_MIN_SIZE - 120)(%r1); \
+	stfd	f15,(stack_size + STACK_FRAME_MIN_SIZE - 128)(%r1); \
+	stfd	f14,(stack_size + STACK_FRAME_MIN_SIZE - 136)(%r1);
+
+#define POP_FPU(stack_size) \
+	lfd	f31,(stack_size + STACK_FRAME_MIN_SIZE)(%r1); \
+	lfd	f30,(stack_size + STACK_FRAME_MIN_SIZE - 8)(%r1); \
+	lfd	f29,(stack_size + STACK_FRAME_MIN_SIZE - 16)(%r1); \
+	lfd	f28,(stack_size + STACK_FRAME_MIN_SIZE - 24)(%r1); \
+	lfd	f27,(stack_size + STACK_FRAME_MIN_SIZE - 32)(%r1); \
+	lfd	f26,(stack_size + STACK_FRAME_MIN_SIZE - 40)(%r1); \
+	lfd	f25,(stack_size + STACK_FRAME_MIN_SIZE - 48)(%r1); \
+	lfd	f24,(stack_size + STACK_FRAME_MIN_SIZE - 56)(%r1); \
+	lfd	f23,(stack_size + STACK_FRAME_MIN_SIZE - 64)(%r1); \
+	lfd	f22,(stack_size + STACK_FRAME_MIN_SIZE - 72)(%r1); \
+	lfd	f21,(stack_size + STACK_FRAME_MIN_SIZE - 80)(%r1); \
+	lfd	f20,(stack_size + STACK_FRAME_MIN_SIZE - 88)(%r1); \
+	lfd	f19,(stack_size + STACK_FRAME_MIN_SIZE - 96)(%r1); \
+	lfd	f18,(stack_size + STACK_FRAME_MIN_SIZE - 104)(%r1); \
+	lfd	f17,(stack_size + STACK_FRAME_MIN_SIZE - 112)(%r1); \
+	lfd	f16,(stack_size + STACK_FRAME_MIN_SIZE - 120)(%r1); \
+	lfd	f15,(stack_size + STACK_FRAME_MIN_SIZE - 128)(%r1); \
+	lfd	f14,(stack_size + STACK_FRAME_MIN_SIZE - 136)(%r1);
+
+/*
+ * Careful calling this, it will 'clobber' fpu (by design)
+ * Don't call this from C
+ */
+FUNC_START(load_fpu)
+	lfd	f14,0(r3)
+	lfd	f15,8(r3)
+	lfd	f16,16(r3)
+	lfd	f17,24(r3)
+	lfd	f18,32(r3)
+	lfd	f19,40(r3)
+	lfd	f20,48(r3)
+	lfd	f21,56(r3)
+	lfd	f22,64(r3)
+	lfd	f23,72(r3)
+	lfd	f24,80(r3)
+	lfd	f25,88(r3)
+	lfd	f26,96(r3)
+	lfd	f27,104(r3)
+	lfd	f28,112(r3)
+	lfd	f29,120(r3)
+	lfd	f30,128(r3)
+	lfd	f31,136(r3)
+	blr
+FUNC_END(load_fpu)
+
+#endif /* _SELFTESTS_POWERPC_FPU_ASM_H */
diff --git a/tools/testing/selftests/powerpc/include/gpr_asm.h b/tools/testing/selftests/powerpc/include/gpr_asm.h
new file mode 100644
index 000000000000..5db74f5c6131
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/gpr_asm.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_GPR_ASM_H
+#define _SELFTESTS_POWERPC_GPR_ASM_H
+
+#include "basic_asm.h"
+
+#define __PUSH_NVREGS(top_pos); \
+	std r31,(top_pos)(%r1); \
+	std r30,(top_pos - 8)(%r1); \
+	std r29,(top_pos - 16)(%r1); \
+	std r28,(top_pos - 24)(%r1); \
+	std r27,(top_pos - 32)(%r1); \
+	std r26,(top_pos - 40)(%r1); \
+	std r25,(top_pos - 48)(%r1); \
+	std r24,(top_pos - 56)(%r1); \
+	std r23,(top_pos - 64)(%r1); \
+	std r22,(top_pos - 72)(%r1); \
+	std r21,(top_pos - 80)(%r1); \
+	std r20,(top_pos - 88)(%r1); \
+	std r19,(top_pos - 96)(%r1); \
+	std r18,(top_pos - 104)(%r1); \
+	std r17,(top_pos - 112)(%r1); \
+	std r16,(top_pos - 120)(%r1); \
+	std r15,(top_pos - 128)(%r1); \
+	std r14,(top_pos - 136)(%r1)
+
+#define __POP_NVREGS(top_pos); \
+	ld r31,(top_pos)(%r1); \
+	ld r30,(top_pos - 8)(%r1); \
+	ld r29,(top_pos - 16)(%r1); \
+	ld r28,(top_pos - 24)(%r1); \
+	ld r27,(top_pos - 32)(%r1); \
+	ld r26,(top_pos - 40)(%r1); \
+	ld r25,(top_pos - 48)(%r1); \
+	ld r24,(top_pos - 56)(%r1); \
+	ld r23,(top_pos - 64)(%r1); \
+	ld r22,(top_pos - 72)(%r1); \
+	ld r21,(top_pos - 80)(%r1); \
+	ld r20,(top_pos - 88)(%r1); \
+	ld r19,(top_pos - 96)(%r1); \
+	ld r18,(top_pos - 104)(%r1); \
+	ld r17,(top_pos - 112)(%r1); \
+	ld r16,(top_pos - 120)(%r1); \
+	ld r15,(top_pos - 128)(%r1); \
+	ld r14,(top_pos - 136)(%r1)
+
+#define PUSH_NVREGS(stack_size) \
+	__PUSH_NVREGS(stack_size + STACK_FRAME_MIN_SIZE)
+
+/* 18 NV FPU REGS */
+#define PUSH_NVREGS_BELOW_FPU(stack_size) \
+	__PUSH_NVREGS(stack_size + STACK_FRAME_MIN_SIZE - (18 * 8))
+
+#define POP_NVREGS(stack_size) \
+	__POP_NVREGS(stack_size + STACK_FRAME_MIN_SIZE)
+
+/* 18 NV FPU REGS */
+#define POP_NVREGS_BELOW_FPU(stack_size) \
+	__POP_NVREGS(stack_size + STACK_FRAME_MIN_SIZE - (18 * 8))
+
+/*
+ * Careful calling this, it will 'clobber' NVGPRs (by design)
+ * Don't call this from C
+ */
+FUNC_START(load_gpr)
+	ld	r14,0(r3)
+	ld	r15,8(r3)
+	ld	r16,16(r3)
+	ld	r17,24(r3)
+	ld	r18,32(r3)
+	ld	r19,40(r3)
+	ld	r20,48(r3)
+	ld	r21,56(r3)
+	ld	r22,64(r3)
+	ld	r23,72(r3)
+	ld	r24,80(r3)
+	ld	r25,88(r3)
+	ld	r26,96(r3)
+	ld	r27,104(r3)
+	ld	r28,112(r3)
+	ld	r29,120(r3)
+	ld	r30,128(r3)
+	ld	r31,136(r3)
+	blr
+FUNC_END(load_gpr)
+
+
+#endif /* _SELFTESTS_POWERPC_GPR_ASM_H */
diff --git a/tools/testing/selftests/powerpc/include/instructions.h b/tools/testing/selftests/powerpc/include/instructions.h
new file mode 100644
index 000000000000..864f0c9f1afc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/instructions.h
@@ -0,0 +1,146 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
+#define _SELFTESTS_POWERPC_INSTRUCTIONS_H
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/* This defines the "copy" instruction from Power ISA 3.0 Book II, section 4.4. */
+#define __COPY(RA, RB, L) \
+	(0x7c00060c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10))
+#define COPY(RA, RB, L) \
+	.long __COPY((RA), (RB), (L))
+
+static inline void copy(void *i)
+{
+	asm volatile(str(COPY(0, %0, 0))";"
+			:
+			: "b" (i)
+			: "memory"
+		    );
+}
+
+static inline void copy_first(void *i)
+{
+	asm volatile(str(COPY(0, %0, 1))";"
+			:
+			: "b" (i)
+			: "memory"
+		    );
+}
+
+/* This defines the "paste" instruction from Power ISA 3.0 Book II, section 4.4. */
+#define __PASTE(RA, RB, L, RC) \
+	(0x7c00070c | (RA) << (31-15) | (RB) << (31-20) | (L) << (31-10) | (RC) << (31-31))
+#define PASTE(RA, RB, L, RC) \
+	.long __PASTE((RA), (RB), (L), (RC))
+
+static inline int paste(void *i)
+{
+	int cr;
+
+	asm volatile(str(PASTE(0, %1, 0, 0))";"
+			"mfcr %0;"
+			: "=r" (cr)
+			: "b" (i)
+			: "memory"
+		    );
+	return cr;
+}
+
+static inline int paste_last(void *i)
+{
+	int cr;
+
+	asm volatile(str(PASTE(0, %1, 1, 1))";"
+			"mfcr %0;"
+			: "=r" (cr)
+			: "b" (i)
+			: "memory"
+		    );
+	return cr;
+}
+
+#define PPC_INST_COPY                  __COPY(0, 0, 0)
+#define PPC_INST_COPY_FIRST            __COPY(0, 0, 1)
+#define PPC_INST_PASTE                 __PASTE(0, 0, 0, 0)
+#define PPC_INST_PASTE_LAST            __PASTE(0, 0, 1, 1)
+
+/* This defines the prefixed load/store instructions */
+#ifdef __ASSEMBLER__
+#  define stringify_in_c(...)	__VA_ARGS__
+#else
+#  define __stringify_in_c(...)	#__VA_ARGS__
+#  define stringify_in_c(...)	__stringify_in_c(__VA_ARGS__) " "
+#endif
+
+#define __PPC_RA(a)	(((a) & 0x1f) << 16)
+#define __PPC_RS(s)	(((s) & 0x1f) << 21)
+#define __PPC_RT(t)	__PPC_RS(t)
+#define __PPC_PREFIX_R(r)	(((r) & 0x1) << 20)
+
+#define PPC_PREFIX_MLS			0x06000000
+#define PPC_PREFIX_8LS			0x04000000
+
+#define PPC_INST_LBZ			0x88000000
+#define PPC_INST_LHZ			0xa0000000
+#define PPC_INST_LHA			0xa8000000
+#define PPC_INST_LWZ			0x80000000
+#define PPC_INST_STB			0x98000000
+#define PPC_INST_STH			0xb0000000
+#define PPC_INST_STW			0x90000000
+#define PPC_INST_STD			0xf8000000
+#define PPC_INST_LFS			0xc0000000
+#define PPC_INST_LFD			0xc8000000
+#define PPC_INST_STFS			0xd0000000
+#define PPC_INST_STFD			0xd8000000
+
+#define PREFIX_MLS(instr, t, a, r, d)	stringify_in_c(.balign 64, , 4;)		\
+					stringify_in_c(.long PPC_PREFIX_MLS |		\
+						       __PPC_PREFIX_R(r) |		\
+						       (((d) >> 16) & 0x3ffff);)	\
+					stringify_in_c(.long (instr)  |			\
+						       __PPC_RT(t) |			\
+						       __PPC_RA(a) |			\
+						       ((d) & 0xffff);\n)
+
+#define PREFIX_8LS(instr, t, a, r, d)	stringify_in_c(.balign 64, , 4;)		\
+					stringify_in_c(.long PPC_PREFIX_8LS |		\
+						       __PPC_PREFIX_R(r) |		\
+						       (((d) >> 16) & 0x3ffff);)	\
+					stringify_in_c(.long (instr)  |			\
+						       __PPC_RT(t) |			\
+						       __PPC_RA(a) |			\
+						       ((d) & 0xffff);\n)
+
+/* Prefixed Integer Load/Store instructions */
+#define PLBZ(t, a, r, d)		PREFIX_MLS(PPC_INST_LBZ, t, a, r, d)
+#define PLHZ(t, a, r, d)		PREFIX_MLS(PPC_INST_LHZ, t, a, r, d)
+#define PLHA(t, a, r, d)		PREFIX_MLS(PPC_INST_LHA, t, a, r, d)
+#define PLWZ(t, a, r, d)		PREFIX_MLS(PPC_INST_LWZ, t, a, r, d)
+#define PLWA(t, a, r, d)		PREFIX_8LS(0xa4000000, t, a, r, d)
+#define PLD(t, a, r, d)			PREFIX_8LS(0xe4000000, t, a, r, d)
+#define PLQ(t, a, r, d)			PREFIX_8LS(0xe0000000, t, a, r, d)
+#define PSTB(s, a, r, d)		PREFIX_MLS(PPC_INST_STB, s, a, r, d)
+#define PSTH(s, a, r, d)		PREFIX_MLS(PPC_INST_STH, s, a, r, d)
+#define PSTW(s, a, r, d)		PREFIX_MLS(PPC_INST_STW, s, a, r, d)
+#define PSTD(s, a, r, d)		PREFIX_8LS(0xf4000000, s, a, r, d)
+#define PSTQ(s, a, r, d)		PREFIX_8LS(0xf0000000, s, a, r, d)
+
+/* Prefixed Floating-Point Load/Store Instructions */
+#define PLFS(frt, a, r, d)		PREFIX_MLS(PPC_INST_LFS, frt, a, r, d)
+#define PLFD(frt, a, r, d)		PREFIX_MLS(PPC_INST_LFD, frt, a, r, d)
+#define PSTFS(frs, a, r, d)		PREFIX_MLS(PPC_INST_STFS, frs, a, r, d)
+#define PSTFD(frs, a, r, d)		PREFIX_MLS(PPC_INST_STFD, frs, a, r, d)
+
+/* Prefixed VSX Load/Store Instructions */
+#define PLXSD(vrt, a, r, d)		PREFIX_8LS(0xa8000000, vrt, a, r, d)
+#define PLXSSP(vrt, a, r, d)		PREFIX_8LS(0xac000000, vrt, a, r, d)
+#define PLXV0(s, a, r, d)		PREFIX_8LS(0xc8000000, s, a, r, d)
+#define PLXV1(s, a, r, d)		PREFIX_8LS(0xcc000000, s, a, r, d)
+#define PSTXSD(vrs, a, r, d)		PREFIX_8LS(0xb8000000, vrs, a, r, d)
+#define PSTXSSP(vrs, a, r, d)		PREFIX_8LS(0xbc000000, vrs, a, r, d)
+#define PSTXV0(s, a, r, d)		PREFIX_8LS(0xd8000000, s, a, r, d)
+#define PSTXV1(s, a, r, d)		PREFIX_8LS(0xdc000000, s, a, r, d)
+
+#endif /* _SELFTESTS_POWERPC_INSTRUCTIONS_H */
diff --git a/tools/testing/selftests/powerpc/include/pkeys.h b/tools/testing/selftests/powerpc/include/pkeys.h
new file mode 100644
index 000000000000..d6deb6ffa1b9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/pkeys.h
@@ -0,0 +1,147 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020, Sandipan Das, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_PKEYS_H
+#define _SELFTESTS_POWERPC_PKEYS_H
+
+#include <sys/mman.h>
+
+#include "reg.h"
+#include "utils.h"
+
+/*
+ * Older versions of libc use the Intel-specific access rights.
+ * Hence, override the definitions as they might be incorrect.
+ */
+#undef PKEY_DISABLE_ACCESS
+#define PKEY_DISABLE_ACCESS	0x3
+
+#undef PKEY_DISABLE_WRITE
+#define PKEY_DISABLE_WRITE	0x2
+
+#undef PKEY_DISABLE_EXECUTE
+#define PKEY_DISABLE_EXECUTE	0x4
+
+#undef PKEY_UNRESTRICTED
+#define PKEY_UNRESTRICTED	0x0
+
+/* Older versions of libc do not define this */
+#ifndef SEGV_PKUERR
+#define SEGV_PKUERR	4
+#endif
+
+#define SI_PKEY_OFFSET	0x20
+
+#define __NR_pkey_mprotect	386
+#define __NR_pkey_alloc		384
+#define __NR_pkey_free		385
+
+#ifndef NT_PPC_PKEY
+#define NT_PPC_PKEY		0x110
+#endif
+
+#define PKEY_BITS_PER_PKEY	2
+#define NR_PKEYS		32
+#define PKEY_BITS_MASK		((1UL << PKEY_BITS_PER_PKEY) - 1)
+
+#define AMR_BITS_PER_PKEY 2
+#define PKEY_REG_BITS (sizeof(u64) * 8)
+#define pkeyshift(pkey) (PKEY_REG_BITS - ((pkey + 1) * AMR_BITS_PER_PKEY))
+
+inline unsigned long pkeyreg_get(void)
+{
+	return mfspr(SPRN_AMR);
+}
+
+inline void pkeyreg_set(unsigned long amr)
+{
+	set_amr(amr);
+}
+
+void pkey_set_rights(int pkey, unsigned long rights)
+{
+	unsigned long amr, shift;
+
+	shift = (NR_PKEYS - pkey - 1) * PKEY_BITS_PER_PKEY;
+	amr = pkeyreg_get();
+	amr &= ~(PKEY_BITS_MASK << shift);
+	amr |= (rights & PKEY_BITS_MASK) << shift;
+	pkeyreg_set(amr);
+}
+
+int sys_pkey_mprotect(void *addr, size_t len, int prot, int pkey)
+{
+	return syscall(__NR_pkey_mprotect, addr, len, prot, pkey);
+}
+
+int sys_pkey_alloc(unsigned long flags, unsigned long rights)
+{
+	return syscall(__NR_pkey_alloc, flags, rights);
+}
+
+int sys_pkey_free(int pkey)
+{
+	return syscall(__NR_pkey_free, pkey);
+}
+
+int pkeys_unsupported(void)
+{
+	bool hash_mmu = false;
+	int pkey;
+
+	/* Protection keys are currently supported on Hash MMU only */
+	FAIL_IF(using_hash_mmu(&hash_mmu));
+	SKIP_IF(!hash_mmu);
+
+	/* Check if the system call is supported */
+	pkey = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	SKIP_IF(pkey < 0);
+	sys_pkey_free(pkey);
+
+	return 0;
+}
+
+int siginfo_pkey(siginfo_t *si)
+{
+	/*
+	 * In older versions of libc, siginfo_t does not have si_pkey as
+	 * a member.
+	 */
+#ifdef si_pkey
+	return si->si_pkey;
+#else
+	return *((int *)(((char *) si) + SI_PKEY_OFFSET));
+#endif
+}
+
+#define pkey_rights(r) ({						\
+	static char buf[4] = "rwx";					\
+	unsigned int amr_bits;						\
+	if ((r) & PKEY_DISABLE_EXECUTE)					\
+		buf[2] = '-';						\
+	amr_bits = (r) & PKEY_BITS_MASK;				\
+	if (amr_bits & PKEY_DISABLE_WRITE)				\
+		buf[1] = '-';						\
+	if (amr_bits & PKEY_DISABLE_ACCESS & ~PKEY_DISABLE_WRITE)	\
+		buf[0] = '-';						\
+	buf;								\
+})
+
+unsigned long next_pkey_rights(unsigned long rights)
+{
+	if (rights == PKEY_DISABLE_ACCESS)
+		return PKEY_DISABLE_EXECUTE;
+	else if (rights == (PKEY_DISABLE_ACCESS | PKEY_DISABLE_EXECUTE))
+		return 0;
+
+	if ((rights & PKEY_BITS_MASK) == 0)
+		rights |= PKEY_DISABLE_WRITE;
+	else if ((rights & PKEY_BITS_MASK) == PKEY_DISABLE_WRITE)
+		rights |= PKEY_DISABLE_ACCESS;
+
+	return rights;
+}
+
+#endif /* _SELFTESTS_POWERPC_PKEYS_H */
diff --git a/tools/testing/selftests/powerpc/include/reg.h b/tools/testing/selftests/powerpc/include/reg.h
new file mode 100644
index 000000000000..fad09c9d3387
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/reg.h
@@ -0,0 +1,174 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2014, Michael Ellerman, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_REG_H
+#define _SELFTESTS_POWERPC_REG_H
+
+#define __stringify_1(x)        #x
+#define __stringify(x)          __stringify_1(x)
+
+#define mfspr(rn)	({unsigned long rval; \
+			 asm volatile("mfspr %0," _str(rn) \
+				    : "=r" (rval)); rval; })
+#define mtspr(rn, v)	asm volatile("mtspr " _str(rn) ",%0" : \
+				    : "r" ((unsigned long)(v)) \
+				    : "memory")
+
+#define mb()		asm volatile("sync" : : : "memory");
+#define barrier()	asm volatile("" : : : "memory");
+
+#define SPRN_HDEXCR_RO 455	/* Userspace readonly view of SPRN_HDEXCR (471) */
+
+#define SPRN_MMCR2     769
+#define SPRN_MMCRA     770
+#define SPRN_MMCR0     779
+#define   MMCR0_PMAO   0x00000080
+#define   MMCR0_PMAE   0x04000000
+#define   MMCR0_FC     0x80000000
+#define SPRN_EBBHR     804
+#define SPRN_EBBRR     805
+#define SPRN_BESCR     806     /* Branch event status & control register */
+#define SPRN_BESCRS    800     /* Branch event status & control set (1 bits set to 1) */
+#define SPRN_BESCRSU   801     /* Branch event status & control set upper */
+#define SPRN_BESCRR    802     /* Branch event status & control REset (1 bits set to 0) */
+#define SPRN_BESCRRU   803     /* Branch event status & control REset upper */
+
+#define BESCR_PMEO     0x1     /* PMU Event-based exception Occurred */
+#define BESCR_PME      (0x1ul << 32) /* PMU Event-based exception Enable */
+
+#define SPRN_PMC1      771
+#define SPRN_PMC2      772
+#define SPRN_PMC3      773
+#define SPRN_PMC4      774
+#define SPRN_PMC5      775
+#define SPRN_PMC6      776
+
+#define SPRN_SIAR      780
+#define SPRN_SDAR      781
+#define SPRN_SIER      768
+
+#define SPRN_DEXCR_RO  812	/* Userspace readonly view of SPRN_DEXCR (828) */
+
+#define SPRN_TEXASR     0x82    /* Transaction Exception and Status Register */
+#define SPRN_TFIAR      0x81    /* Transaction Failure Inst Addr    */
+#define SPRN_TFHAR      0x80    /* Transaction Failure Handler Addr */
+#define SPRN_TAR        0x32f	/* Target Address Register */
+
+#define PVR_VER(pvr)	(((pvr) >>  16) & 0xFFFF)
+#define SPRN_PVR	0x11F
+
+#define PVR_CFG(pvr)    (((pvr) >>  8) & 0xF)   /* Configuration field */
+#define PVR_MAJ(pvr)    (((pvr) >>  4) & 0xF)   /* Major revision field */
+#define PVR_MIN(pvr)    (((pvr) >>  0) & 0xF)   /* Minor revision field */
+
+#define SPRN_DSCR_PRIV 0x11	/* Privilege State DSCR */
+#define SPRN_DSCR      0x03	/* Data Stream Control Register */
+#define SPRN_PPR       896	/* Program Priority Register */
+#define SPRN_AMR       13	/* Authority Mask Register - problem state */
+
+#define set_amr(v)	asm volatile("isync;" \
+				     "mtspr " __stringify(SPRN_AMR) ",%0;" \
+				     "isync" : \
+				    : "r" ((unsigned long)(v)) \
+				    : "memory")
+
+/* TEXASR register bits */
+#define TEXASR_FC	0xFE00000000000000
+#define TEXASR_FP	0x0100000000000000
+#define TEXASR_DA	0x0080000000000000
+#define TEXASR_NO	0x0040000000000000
+#define TEXASR_FO	0x0020000000000000
+#define TEXASR_SIC	0x0010000000000000
+#define TEXASR_NTC	0x0008000000000000
+#define TEXASR_TC	0x0004000000000000
+#define TEXASR_TIC	0x0002000000000000
+#define TEXASR_IC	0x0001000000000000
+#define TEXASR_IFC	0x0000800000000000
+#define TEXASR_ABT	0x0000000100000000
+#define TEXASR_SPD	0x0000000080000000
+#define TEXASR_HV	0x0000000020000000
+#define TEXASR_PR	0x0000000010000000
+#define TEXASR_FS	0x0000000008000000
+#define TEXASR_TE	0x0000000004000000
+#define TEXASR_ROT	0x0000000002000000
+
+/* MSR register bits */
+#define MSR_HV 		(1ul << 60)	/* Hypervisor state */
+#define MSR_TS_S_LG     33              /* Trans Mem state: Suspended */
+#define MSR_TS_T_LG	34              /* Trans Mem state: Active */
+
+#define __MASK(X)       (1UL<<(X))
+
+/* macro to check TM MSR bits */
+#define MSR_TS_S        __MASK(MSR_TS_S_LG)   /* Transaction Suspended */
+#define MSR_TS_T	__MASK(MSR_TS_T_LG)   /* Transaction Transactional */
+
+/* Vector Instructions */
+#define VSX_XX1(xs, ra, rb)	(((xs) & 0x1f) << 21 | ((ra) << 16) |  \
+				 ((rb) << 11) | (((xs) >> 5)))
+#define STXVD2X(xs, ra, rb)	.long (0x7c000798 | VSX_XX1((xs), (ra), (rb)))
+#define LXVD2X(xs, ra, rb)	.long (0x7c000698 | VSX_XX1((xs), (ra), (rb)))
+
+#define ASM_LOAD_GPR_IMMED(_asm_symbol_name_immed) \
+		"li 14, %[" #_asm_symbol_name_immed "];" \
+		"li 15, %[" #_asm_symbol_name_immed "];" \
+		"li 16, %[" #_asm_symbol_name_immed "];" \
+		"li 17, %[" #_asm_symbol_name_immed "];" \
+		"li 18, %[" #_asm_symbol_name_immed "];" \
+		"li 19, %[" #_asm_symbol_name_immed "];" \
+		"li 20, %[" #_asm_symbol_name_immed "];" \
+		"li 21, %[" #_asm_symbol_name_immed "];" \
+		"li 22, %[" #_asm_symbol_name_immed "];" \
+		"li 23, %[" #_asm_symbol_name_immed "];" \
+		"li 24, %[" #_asm_symbol_name_immed "];" \
+		"li 25, %[" #_asm_symbol_name_immed "];" \
+		"li 26, %[" #_asm_symbol_name_immed "];" \
+		"li 27, %[" #_asm_symbol_name_immed "];" \
+		"li 28, %[" #_asm_symbol_name_immed "];" \
+		"li 29, %[" #_asm_symbol_name_immed "];" \
+		"li 30, %[" #_asm_symbol_name_immed "];" \
+		"li 31, %[" #_asm_symbol_name_immed "];"
+
+#define ASM_LOAD_FPR(_asm_symbol_name_addr) \
+		"lfd 0, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 1, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 2, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 3, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 4, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 5, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 6, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 7, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 8, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 9, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 10, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 11, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 12, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 13, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 14, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 15, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 16, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 17, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 18, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 19, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 20, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 21, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 22, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 23, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 24, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 25, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 26, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 27, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 28, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 29, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 30, 0(%[" #_asm_symbol_name_addr "]);" \
+		"lfd 31, 0(%[" #_asm_symbol_name_addr "]);"
+
+#ifndef __ASSEMBLER__
+void store_gpr(unsigned long *addr);
+void load_gpr(unsigned long *addr);
+void store_fpr(double *addr);
+#endif /* end of __ASSEMBLER__ */
+
+#endif /* _SELFTESTS_POWERPC_REG_H */
diff --git a/tools/testing/selftests/powerpc/subunit.h b/tools/testing/selftests/powerpc/include/subunit.h
index 9c6c4e901ab6..b0bb774617c9 100644
--- a/tools/testing/selftests/powerpc/subunit.h
+++ b/tools/testing/selftests/powerpc/include/subunit.h
@@ -1,42 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #ifndef _SELFTESTS_POWERPC_SUBUNIT_H
 #define _SELFTESTS_POWERPC_SUBUNIT_H
 
-static inline void test_start(char *name)
+static inline void test_start(const char *name)
 {
 	printf("test: %s\n", name);
 }
 
-static inline void test_failure_detail(char *name, char *detail)
+static inline void test_failure_detail(const char *name, const char *detail)
 {
 	printf("failure: %s [%s]\n", name, detail);
 }
 
-static inline void test_failure(char *name)
+static inline void test_failure(const char *name)
 {
 	printf("failure: %s\n", name);
 }
 
-static inline void test_error(char *name)
+static inline void test_error(const char *name)
 {
 	printf("error: %s\n", name);
 }
 
-static inline void test_skip(char *name)
+static inline void test_skip(const char *name)
 {
 	printf("skip: %s\n", name);
 }
 
-static inline void test_success(char *name)
+static inline void test_success(const char *name)
 {
 	printf("success: %s\n", name);
 }
 
-static inline void test_finish(char *name, int status)
+static inline void test_finish(const char *name, int status)
 {
 	if (status)
 		test_failure(name);
@@ -44,7 +44,7 @@ static inline void test_finish(char *name, int status)
 		test_success(name);
 }
 
-static inline void test_set_git_version(char *value)
+static inline void test_set_git_version(const char *value)
 {
 	printf("tags: git_version:%s\n", value);
 }
diff --git a/tools/testing/selftests/powerpc/include/utils.h b/tools/testing/selftests/powerpc/include/utils.h
new file mode 100644
index 000000000000..66d7b2368dd4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/utils.h
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_UTILS_H
+#define _SELFTESTS_POWERPC_UTILS_H
+
+#define __cacheline_aligned __attribute__((aligned(128)))
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <sys/signal.h>
+#include <linux/auxvec.h>
+#include <linux/perf_event.h>
+#include <asm/cputable.h>
+#include "reg.h"
+#include <unistd.h>
+
+#ifndef ARRAY_SIZE
+# define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+#endif
+
+/* Avoid headaches with PRI?64 - just use %ll? always */
+typedef unsigned long long u64;
+typedef   signed long long s64;
+
+/* Just for familiarity */
+typedef uint32_t u32;
+typedef uint16_t u16;
+typedef uint8_t u8;
+
+void test_harness_set_timeout(uint64_t time);
+int test_harness(int (test_function)(void), const char *name);
+
+int read_auxv(char *buf, ssize_t buf_size);
+void *find_auxv_entry(int type, char *auxv);
+void *get_auxv_entry(int type);
+
+#define BIND_CPU_ANY	(-1)
+
+int pick_online_cpu(void);
+int bind_to_cpu(int cpu);
+
+int parse_intmax(const char *buffer, size_t count, intmax_t *result, int base);
+int parse_uintmax(const char *buffer, size_t count, uintmax_t *result, int base);
+int parse_int(const char *buffer, size_t count, int *result, int base);
+int parse_uint(const char *buffer, size_t count, unsigned int *result, int base);
+int parse_long(const char *buffer, size_t count, long *result, int base);
+int parse_ulong(const char *buffer, size_t count, unsigned long *result, int base);
+
+int read_file(const char *path, char *buf, size_t count, size_t *len);
+int write_file(const char *path, const char *buf, size_t count);
+int read_file_alloc(const char *path, char **buf, size_t *len);
+int read_long(const char *path, long *result, int base);
+int write_long(const char *path, long result, int base);
+int read_ulong(const char *path, unsigned long *result, int base);
+int write_ulong(const char *path, unsigned long result, int base);
+int read_debugfs_file(const char *debugfs_file, char *buf, size_t count);
+int write_debugfs_file(const char *debugfs_file, const char *buf, size_t count);
+int read_debugfs_int(const char *debugfs_file, int *result);
+int write_debugfs_int(const char *debugfs_file, int result);
+int read_sysfs_file(char *debugfs_file, char *result, size_t result_size);
+int perf_event_open_counter(unsigned int type,
+			    unsigned long config, int group_fd);
+int perf_event_enable(int fd);
+int perf_event_disable(int fd);
+int perf_event_reset(int fd);
+
+struct perf_event_read {
+	__u64 nr;
+	__u64 l1d_misses;
+};
+
+#if !defined(__GLIBC_PREREQ) || !__GLIBC_PREREQ(2, 30)
+#include <sys/syscall.h>
+
+static inline pid_t gettid(void)
+{
+	return syscall(SYS_gettid);
+}
+#endif
+
+static inline bool have_hwcap(unsigned long ftr)
+{
+	return ((unsigned long)get_auxv_entry(AT_HWCAP) & ftr) == ftr;
+}
+
+#ifdef AT_HWCAP2
+static inline bool have_hwcap2(unsigned long ftr2)
+{
+	return ((unsigned long)get_auxv_entry(AT_HWCAP2) & ftr2) == ftr2;
+}
+#else
+static inline bool have_hwcap2(unsigned long ftr2)
+{
+	return false;
+}
+#endif
+
+static inline char *auxv_base_platform(void)
+{
+	return ((char *)get_auxv_entry(AT_BASE_PLATFORM));
+}
+
+static inline char *auxv_platform(void)
+{
+	return ((char *)get_auxv_entry(AT_PLATFORM));
+}
+
+bool is_ppc64le(void);
+int using_hash_mmu(bool *using_hash);
+
+struct sigaction push_signal_handler(int sig, void (*fn)(int, siginfo_t *, void *));
+struct sigaction pop_signal_handler(int sig, struct sigaction old_handler);
+
+/* Yes, this is evil */
+#define FAIL_IF(x)						\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[FAIL] Test FAILED on line %d\n", __LINE__);	\
+		return 1;					\
+	}							\
+} while (0)
+
+#define FAIL_IF_MSG(x, msg)					\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[FAIL] Test FAILED on line %d: %s\n", 		\
+		__LINE__, msg);					\
+		return 1;					\
+	}							\
+} while (0)
+
+#define FAIL_IF_EXIT(x)						\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[FAIL] Test FAILED on line %d\n", __LINE__);	\
+		_exit(1);					\
+	}							\
+} while (0)
+
+#define FAIL_IF_EXIT_MSG(x, msg)				\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[FAIL] Test FAILED on line %d: %s\n", 		\
+		__LINE__, msg);					\
+		_exit(1);					\
+	}							\
+} while (0)
+
+/* The test harness uses this, yes it's gross */
+#define MAGIC_SKIP_RETURN_VALUE	99
+
+#define SKIP_IF(x)						\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[SKIP] Test skipped on line %d\n", __LINE__);	\
+		return MAGIC_SKIP_RETURN_VALUE;			\
+	}							\
+} while (0)
+
+#define SKIP_IF_MSG(x, msg)					\
+do {								\
+	if ((x)) {						\
+		fprintf(stderr,					\
+		"[SKIP] Test skipped on line %d: %s\n",		\
+		 __LINE__, msg);				\
+		return MAGIC_SKIP_RETURN_VALUE;			\
+	}							\
+} while (0)
+
+#define _str(s) #s
+#define str(s) _str(s)
+
+#define sigsafe_err(msg)	({ \
+		ssize_t nbytes __attribute__((unused)); \
+		nbytes = write(STDERR_FILENO, msg, strlen(msg)); })
+
+/* POWER9 feature */
+#ifndef PPC_FEATURE2_ARCH_3_00
+#define PPC_FEATURE2_ARCH_3_00 0x00800000
+#endif
+
+/* POWER10 feature */
+#ifndef PPC_FEATURE2_ARCH_3_1
+#define PPC_FEATURE2_ARCH_3_1 0x00040000
+#endif
+
+/* POWER10 features */
+#ifndef PPC_FEATURE2_MMA
+#define PPC_FEATURE2_MMA 0x00020000
+#endif
+
+#if defined(__powerpc64__)
+#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.gp_regs[PT_NIP]
+#define UCONTEXT_MSR(UC)	(UC)->uc_mcontext.gp_regs[PT_MSR]
+#elif defined(__powerpc__)
+#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.uc_regs->gregs[PT_NIP]
+#define UCONTEXT_MSR(UC)	(UC)->uc_mcontext.uc_regs->gregs[PT_MSR]
+#else
+#error implement UCONTEXT_NIA
+#endif
+
+#endif /* _SELFTESTS_POWERPC_UTILS_H */
diff --git a/tools/testing/selftests/powerpc/include/vmx_asm.h b/tools/testing/selftests/powerpc/include/vmx_asm.h
new file mode 100644
index 000000000000..ad9fb1b4069d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/vmx_asm.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+
+/* POS MUST BE 16 ALIGNED! */
+#define PUSH_VMX(pos,reg) \
+	li	reg,pos; \
+	stvx	v20,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v21,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v22,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v23,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v24,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v25,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v26,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v27,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v28,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v29,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v30,reg,%r1; \
+	addi	reg,reg,16; \
+	stvx	v31,reg,%r1;
+
+/* POS MUST BE 16 ALIGNED! */
+#define POP_VMX(pos,reg) \
+	li	reg,pos; \
+	lvx	v20,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v21,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v22,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v23,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v24,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v25,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v26,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v27,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v28,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v29,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v30,reg,%r1; \
+	addi	reg,reg,16; \
+	lvx	v31,reg,%r1;
+
+/*
+ * Careful this will 'clobber' vmx (by design)
+ * Don't call this from C
+ */
+FUNC_START(load_vmx)
+	li	r5,0
+	lvx	v20,r5,r3
+	addi	r5,r5,16
+	lvx	v21,r5,r3
+	addi	r5,r5,16
+	lvx	v22,r5,r3
+	addi	r5,r5,16
+	lvx	v23,r5,r3
+	addi	r5,r5,16
+	lvx	v24,r5,r3
+	addi	r5,r5,16
+	lvx	v25,r5,r3
+	addi	r5,r5,16
+	lvx	v26,r5,r3
+	addi	r5,r5,16
+	lvx	v27,r5,r3
+	addi	r5,r5,16
+	lvx	v28,r5,r3
+	addi	r5,r5,16
+	lvx	v29,r5,r3
+	addi	r5,r5,16
+	lvx	v30,r5,r3
+	addi	r5,r5,16
+	lvx	v31,r5,r3
+	blr
+FUNC_END(load_vmx)
diff --git a/tools/testing/selftests/powerpc/include/vsx_asm.h b/tools/testing/selftests/powerpc/include/vsx_asm.h
new file mode 100644
index 000000000000..434ca2f9bfae
--- /dev/null
+++ b/tools/testing/selftests/powerpc/include/vsx_asm.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+
+/*
+ * Careful this will 'clobber' vsx (by design), VSX are always
+ * volatile though so unlike vmx this isn't so much of an issue
+ * Still should avoid calling from C
+ */
+FUNC_START(load_vsx)
+	li	r5,0
+	lxvd2x	vs20,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs21,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs22,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs23,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs24,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs25,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs26,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs27,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs28,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs29,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs30,r5,r3
+	addi	r5,r5,16
+	lxvd2x	vs31,r5,r3
+	blr
+FUNC_END(load_vsx)
+
+FUNC_START(store_vsx)
+	li	r5,0
+	stxvd2x	vs20,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs21,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs22,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs23,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs24,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs25,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs26,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs27,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs28,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs29,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs30,r5,r3
+	addi	r5,r5,16
+	stxvd2x	vs31,r5,r3
+	blr
+FUNC_END(store_vsx)
diff --git a/tools/testing/selftests/powerpc/lib/reg.S b/tools/testing/selftests/powerpc/lib/reg.S
new file mode 100644
index 000000000000..6d1af4a9a6b4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/lib/reg.S
@@ -0,0 +1,356 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * test helper assembly functions
+ *
+ * Copyright (C) 2016 Simon Guo, IBM Corporation.
+ */
+#include <ppc-asm.h>
+#include "reg.h"
+
+
+/* Non volatile GPR - unsigned long buf[18] */
+FUNC_START(load_gpr)
+	ld	14, 0*8(3)
+	ld	15, 1*8(3)
+	ld	16, 2*8(3)
+	ld	17, 3*8(3)
+	ld	18, 4*8(3)
+	ld	19, 5*8(3)
+	ld	20, 6*8(3)
+	ld	21, 7*8(3)
+	ld	22, 8*8(3)
+	ld	23, 9*8(3)
+	ld	24, 10*8(3)
+	ld	25, 11*8(3)
+	ld	26, 12*8(3)
+	ld	27, 13*8(3)
+	ld	28, 14*8(3)
+	ld	29, 15*8(3)
+	ld	30, 16*8(3)
+	ld	31, 17*8(3)
+	blr
+FUNC_END(load_gpr)
+
+FUNC_START(store_gpr)
+	std	14, 0*8(3)
+	std	15, 1*8(3)
+	std	16, 2*8(3)
+	std	17, 3*8(3)
+	std	18, 4*8(3)
+	std	19, 5*8(3)
+	std	20, 6*8(3)
+	std	21, 7*8(3)
+	std	22, 8*8(3)
+	std	23, 9*8(3)
+	std	24, 10*8(3)
+	std	25, 11*8(3)
+	std	26, 12*8(3)
+	std	27, 13*8(3)
+	std	28, 14*8(3)
+	std	29, 15*8(3)
+	std	30, 16*8(3)
+	std	31, 17*8(3)
+	blr
+FUNC_END(store_gpr)
+
+/* Double Precision Float - double buf[32] */
+FUNC_START(store_fpr)
+	stfd  0,  0*8(3)
+	stfd  1,  1*8(3)
+	stfd  2,  2*8(3)
+	stfd  3,  3*8(3)
+	stfd  4,  4*8(3)
+	stfd  5,  5*8(3)
+	stfd  6,  6*8(3)
+	stfd  7,  7*8(3)
+	stfd  8,  8*8(3)
+	stfd  9,  9*8(3)
+	stfd 10, 10*8(3)
+	stfd 11, 11*8(3)
+	stfd 12, 12*8(3)
+	stfd 13, 13*8(3)
+	stfd 14, 14*8(3)
+	stfd 15, 15*8(3)
+	stfd 16, 16*8(3)
+	stfd 17, 17*8(3)
+	stfd 18, 18*8(3)
+	stfd 19, 19*8(3)
+	stfd 20, 20*8(3)
+	stfd 21, 21*8(3)
+	stfd 22, 22*8(3)
+	stfd 23, 23*8(3)
+	stfd 24, 24*8(3)
+	stfd 25, 25*8(3)
+	stfd 26, 26*8(3)
+	stfd 27, 27*8(3)
+	stfd 28, 28*8(3)
+	stfd 29, 29*8(3)
+	stfd 30, 30*8(3)
+	stfd 31, 31*8(3)
+	blr
+FUNC_END(store_fpr)
+
+/* VMX/VSX registers - unsigned long buf[128] */
+FUNC_START(loadvsx)
+	lis	4, 0
+	LXVD2X	(0,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(1,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(2,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(3,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(4,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(5,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(6,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(7,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(8,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(9,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(10,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(11,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(12,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(13,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(14,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(15,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(16,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(17,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(18,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(19,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(20,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(21,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(22,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(23,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(24,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(25,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(26,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(27,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(28,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(29,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(30,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(31,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(32,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(33,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(34,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(35,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(36,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(37,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(38,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(39,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(40,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(41,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(42,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(43,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(44,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(45,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(46,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(47,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(48,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(49,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(50,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(51,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(52,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(53,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(54,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(55,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(56,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(57,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(58,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(59,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(60,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(61,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(62,(4),(3))
+	addi	4, 4, 16
+	LXVD2X	(63,(4),(3))
+	blr
+FUNC_END(loadvsx)
+
+FUNC_START(storevsx)
+	lis	4, 0
+	STXVD2X	(0,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(1,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(2,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(3,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(4,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(5,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(6,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(7,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(8,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(9,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(10,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(11,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(12,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(13,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(14,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(15,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(16,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(17,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(18,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(19,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(20,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(21,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(22,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(23,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(24,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(25,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(26,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(27,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(28,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(29,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(30,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(31,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(32,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(33,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(34,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(35,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(36,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(37,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(38,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(39,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(40,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(41,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(42,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(43,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(44,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(45,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(46,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(47,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(48,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(49,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(50,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(51,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(52,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(53,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(54,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(55,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(56,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(57,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(58,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(59,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(60,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(61,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(62,(4),(3))
+	addi	4, 4, 16
+	STXVD2X	(63,(4),(3))
+	blr
+FUNC_END(storevsx)
diff --git a/tools/testing/selftests/powerpc/lib/settings b/tools/testing/selftests/powerpc/lib/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/lib/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/math/.gitignore b/tools/testing/selftests/powerpc/math/.gitignore
new file mode 100644
index 000000000000..07b4893ef7af
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/.gitignore
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+fpu_syscall
+vmx_syscall
+fpu_preempt
+vmx_preempt
+fpu_signal
+vmx_signal
+vsx_preempt
+fpu_denormal
+mma
diff --git a/tools/testing/selftests/powerpc/math/Makefile b/tools/testing/selftests/powerpc/math/Makefile
new file mode 100644
index 000000000000..b14fd2e0c6a8
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/Makefile
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := fpu_syscall fpu_preempt fpu_signal fpu_denormal vmx_syscall vmx_preempt vmx_signal vsx_preempt mma
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c
+$(TEST_GEN_PROGS): CFLAGS += -O2 -g -pthread -m64 -maltivec
+
+$(OUTPUT)/fpu_syscall: fpu_asm.S
+$(OUTPUT)/fpu_preempt: fpu_asm.S
+$(OUTPUT)/fpu_signal:  fpu_asm.S
+
+$(OUTPUT)/vmx_syscall: vmx_asm.S ../utils.c
+$(OUTPUT)/vmx_preempt: vmx_asm.S ../utils.c
+$(OUTPUT)/vmx_signal: vmx_asm.S ../utils.c
+
+$(OUTPUT)/vsx_preempt: CFLAGS += -mvsx
+$(OUTPUT)/vsx_preempt: vsx_asm.S ../utils.c
+
+$(OUTPUT)/mma: mma.c mma.S ../utils.c
diff --git a/tools/testing/selftests/powerpc/math/fpu.h b/tools/testing/selftests/powerpc/math/fpu.h
new file mode 100644
index 000000000000..a8ad0d42604e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2023, Michael Ellerman, IBM Corporation.
+ */
+
+#ifndef _SELFTESTS_POWERPC_FPU_H
+#define _SELFTESTS_POWERPC_FPU_H
+
+static inline void randomise_darray(double *darray, int num)
+{
+	long val;
+
+	for (int i = 0; i < num; i++) {
+		val = random();
+		if (val & 1)
+			val *= -1;
+
+		if (val & 2)
+			darray[i] = 1.0 / val;
+		else
+			darray[i] = val * val;
+	}
+}
+
+#endif /* _SELFTESTS_POWERPC_FPU_H */
diff --git a/tools/testing/selftests/powerpc/math/fpu_asm.S b/tools/testing/selftests/powerpc/math/fpu_asm.S
new file mode 100644
index 000000000000..efe1e1be4695
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu_asm.S
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+#include "fpu_asm.h"
+
+FUNC_START(check_fpu)
+	mr r4,r3
+	li	r3,1 # assume a bad result
+	lfd	f0,0(r4)
+	fcmpu	cr1,f0,f14
+	bne	cr1,1f
+	lfd	f0,8(r4)
+	fcmpu	cr1,f0,f15
+	bne	cr1,1f
+	lfd	f0,16(r4)
+	fcmpu	cr1,f0,f16
+	bne	cr1,1f
+	lfd	f0,24(r4)
+	fcmpu	cr1,f0,f17
+	bne	cr1,1f
+	lfd	f0,32(r4)
+	fcmpu	cr1,f0,f18
+	bne	cr1,1f
+	lfd	f0,40(r4)
+	fcmpu	cr1,f0,f19
+	bne	cr1,1f
+	lfd	f0,48(r4)
+	fcmpu	cr1,f0,f20
+	bne	cr1,1f
+	lfd	f0,56(r4)
+	fcmpu	cr1,f0,f21
+	bne	cr1,1f
+	lfd	f0,64(r4)
+	fcmpu	cr1,f0,f22
+	bne	cr1,1f
+	lfd	f0,72(r4)
+	fcmpu	cr1,f0,f23
+	bne	cr1,1f
+	lfd	f0,80(r4)
+	fcmpu	cr1,f0,f24
+	bne	cr1,1f
+	lfd	f0,88(r4)
+	fcmpu	cr1,f0,f25
+	bne	cr1,1f
+	lfd	f0,96(r4)
+	fcmpu	cr1,f0,f26
+	bne	cr1,1f
+	lfd	f0,104(r4)
+	fcmpu	cr1,f0,f27
+	bne	cr1,1f
+	lfd	f0,112(r4)
+	fcmpu	cr1,f0,f28
+	bne	cr1,1f
+	lfd	f0,120(r4)
+	fcmpu	cr1,f0,f29
+	bne	cr1,1f
+	lfd	f0,128(r4)
+	fcmpu	cr1,f0,f30
+	bne	cr1,1f
+	lfd	f0,136(r4)
+	fcmpu	cr1,f0,f31
+	bne	cr1,1f
+	li	r3,0 # Success!!!
+1:	blr
+
+
+// int check_all_fprs(double darray[32])
+FUNC_START(check_all_fprs)
+	PUSH_BASIC_STACK(8)
+	mr	r4, r3	// r4 = darray
+	li	r3, 1	// prepare for failure
+
+	stfd	f31, STACK_FRAME_LOCAL(0, 0)(sp) // backup f31
+
+	// Check regs f0-f30, using f31 as scratch
+	.set i, 0
+	.rept 31
+	lfd	f31, (8 * i)(r4)	// load expected value
+	fcmpu	cr0, i, f31		// compare
+	bne	cr0, 1f			// bail if mismatch
+	.set i, i + 1
+	.endr
+
+	lfd	f31, STACK_FRAME_LOCAL(0, 0)(sp) // reload f31
+	stfd	f30, STACK_FRAME_LOCAL(0, 0)(sp) // backup f30
+
+	lfd	f30, (8 * 31)(r4)	// load expected value of f31
+	fcmpu	cr0, f30, f31		// compare
+	bne	cr0, 1f			// bail if mismatch
+
+	lfd	f30, STACK_FRAME_LOCAL(0, 0)(sp) // reload f30
+
+	// Success
+	li	r3, 0
+
+1:	POP_BASIC_STACK(8)
+	blr
+FUNC_END(check_all_fprs)
+
+FUNC_START(test_fpu)
+	# r3 holds pointer to where to put the result of fork
+	# r4 holds pointer to the pid
+	# f14-f31 are non volatiles
+	PUSH_BASIC_STACK(256)
+	PUSH_FPU(256)
+	std	r3,STACK_FRAME_PARAM(0)(sp) # Address of darray
+	std r4,STACK_FRAME_PARAM(1)(sp) # Address of pid
+
+	// Load FPRs with expected values
+	OP_REGS lfd, 8, 0, 31, r3
+
+	li	r0,__NR_fork
+	sc
+
+	# pass the result of the fork to the caller
+	ld	r9,STACK_FRAME_PARAM(1)(sp)
+	std	r3,0(r9)
+
+	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl check_all_fprs
+	nop
+
+	POP_FPU(256)
+	POP_BASIC_STACK(256)
+	blr
+FUNC_END(test_fpu)
+
+# int preempt_fpu(double *darray, int *threads_running, int *running)
+# On starting will (atomically) decrement not_ready as a signal that the FPU
+# has been loaded with darray. Will proceed to check the validity of the FPU
+# registers while running is not zero.
+FUNC_START(preempt_fpu)
+	PUSH_BASIC_STACK(256)
+	PUSH_FPU(256)
+	std r3,STACK_FRAME_PARAM(0)(sp) # double *darray
+	std r4,STACK_FRAME_PARAM(1)(sp) # int *threads_starting
+	std r5,STACK_FRAME_PARAM(2)(sp) # int *running
+
+	// Load FPRs with expected values
+	OP_REGS lfd, 8, 0, 31, r3
+
+	sync
+	# Atomic DEC
+	ld r3,STACK_FRAME_PARAM(1)(sp)
+1:	lwarx r4,0,r3
+	addi r4,r4,-1
+	stwcx. r4,0,r3
+	bne- 1b
+
+2:	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl check_all_fprs
+	cmpdi r3,0
+	bne 3f
+	ld r4,STACK_FRAME_PARAM(2)(sp)
+	ld r5,0(r4)
+	cmpwi r5,0
+	bne 2b
+
+3:	POP_FPU(256)
+	POP_BASIC_STACK(256)
+	blr
+FUNC_END(preempt_fpu)
diff --git a/tools/testing/selftests/powerpc/math/fpu_denormal.c b/tools/testing/selftests/powerpc/math/fpu_denormal.c
new file mode 100644
index 000000000000..5f96682abaa8
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu_denormal.c
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright IBM Corp. 2020
+ *
+ * This test attempts to cause a FP denormal exception on POWER8 CPUs. Unfortunately
+ * if the denormal handler is not configured or working properly, this can cause a bad
+ * crash in kernel mode when the kernel tries to save FP registers when the process
+ * exits.
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include "utils.h"
+
+static int test_denormal_fpu(void)
+{
+	unsigned int m32;
+	unsigned long m64;
+	volatile float f;
+	volatile double d;
+
+	/* try to induce lfs <denormal> ; stfd */
+
+	m32 = 0x00715fcf; /* random denormal */
+	memcpy((float *)&f, &m32, sizeof(f));
+	d = f;
+	memcpy(&m64, (double *)&d, sizeof(d));
+
+	FAIL_IF((long)(m64 != 0x380c57f3c0000000)); /* renormalised value */
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_denormal_fpu, "fpu_denormal");
+}
diff --git a/tools/testing/selftests/powerpc/math/fpu_preempt.c b/tools/testing/selftests/powerpc/math/fpu_preempt.c
new file mode 100644
index 000000000000..9ddede0770ed
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu_preempt.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ * Copyright 2023, Michael Ellerman, IBM Corp.
+ *
+ * This test attempts to see if the FPU registers change across preemption.
+ * There is no way to be sure preemption happened so this test just uses many
+ * threads and a long wait. As such, a successful test doesn't mean much but
+ * a failure is bad.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include "utils.h"
+#include "fpu.h"
+
+/* Time to wait for workers to get preempted (seconds) */
+#define PREEMPT_TIME 60
+/*
+ * Factor by which to multiply number of online CPUs for total number of
+ * worker threads
+ */
+#define THREAD_FACTOR 8
+
+
+__thread double darray[32];
+
+int threads_starting;
+int running;
+
+extern int preempt_fpu(double *darray, int *threads_starting, int *running);
+
+void *preempt_fpu_c(void *p)
+{
+	long rc;
+
+	srand(pthread_self());
+	randomise_darray(darray, ARRAY_SIZE(darray));
+	rc = preempt_fpu(darray, &threads_starting, &running);
+
+	return (void *)rc;
+}
+
+int test_preempt_fpu(void)
+{
+	int i, rc, threads;
+	pthread_t *tids;
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * THREAD_FACTOR;
+	tids = malloc((threads) * sizeof(pthread_t));
+	FAIL_IF(!tids);
+
+	running = true;
+	threads_starting = threads;
+	for (i = 0; i < threads; i++) {
+		rc = pthread_create(&tids[i], NULL, preempt_fpu_c, NULL);
+		FAIL_IF(rc);
+	}
+
+	setbuf(stdout, NULL);
+	/* Not really necessary but nice to wait for every thread to start */
+	printf("\tWaiting for all workers to start...");
+	while(threads_starting)
+		asm volatile("": : :"memory");
+	printf("done\n");
+
+	printf("\tWaiting for %d seconds to let some workers get preempted...", PREEMPT_TIME);
+	sleep(PREEMPT_TIME);
+	printf("done\n");
+
+	printf("\tStopping workers...");
+	/*
+	 * Working are checking this value every loop. In preempt_fpu 'cmpwi r5,0; bne 2b'.
+	 * r5 will have loaded the value of running.
+	 */
+	running = 0;
+	for (i = 0; i < threads; i++) {
+		void *rc_p;
+		pthread_join(tids[i], &rc_p);
+
+		/*
+		 * Harness will say the fail was here, look at why preempt_fpu
+		 * returned
+		 */
+		if ((long) rc_p)
+			printf("oops\n");
+		FAIL_IF((long) rc_p);
+	}
+	printf("done\n");
+
+	free(tids);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_preempt_fpu, "fpu_preempt");
+}
diff --git a/tools/testing/selftests/powerpc/math/fpu_signal.c b/tools/testing/selftests/powerpc/math/fpu_signal.c
new file mode 100644
index 000000000000..8a64f63e37ce
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu_signal.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the FPU registers are correctly reported in a
+ * signal context. Each worker just spins checking its FPU registers, at some
+ * point a signal will interrupt it and C code will check the signal context
+ * ensuring it is also the same.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include "utils.h"
+#include "fpu.h"
+
+/* Number of times each thread should receive the signal */
+#define ITERATIONS 10
+/*
+ * Factor by which to multiply number of online CPUs for total number of
+ * worker threads
+ */
+#define THREAD_FACTOR 8
+
+__thread double darray[32];
+
+bool bad_context;
+int threads_starting;
+int running;
+
+extern long preempt_fpu(double *darray, int *threads_starting, int *running);
+
+void signal_fpu_sig(int sig, siginfo_t *info, void *context)
+{
+	int i;
+	ucontext_t *uc = context;
+	mcontext_t *mc = &uc->uc_mcontext;
+
+	// Don't check f30/f31, they're used as scratches in check_all_fprs()
+	for (i = 0; i < 30; i++) {
+		if (mc->fp_regs[i] != darray[i]) {
+			bad_context = true;
+			break;
+		}
+	}
+}
+
+void *signal_fpu_c(void *p)
+{
+	long rc;
+	struct sigaction act;
+	act.sa_sigaction = signal_fpu_sig;
+	act.sa_flags = SA_SIGINFO;
+	rc = sigaction(SIGUSR1, &act, NULL);
+	if (rc)
+		return p;
+
+	srand(pthread_self());
+	randomise_darray(darray, ARRAY_SIZE(darray));
+	rc = preempt_fpu(darray, &threads_starting, &running);
+
+	return (void *) rc;
+}
+
+int test_signal_fpu(void)
+{
+	int i, j, rc, threads;
+	void *rc_p;
+	pthread_t *tids;
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * THREAD_FACTOR;
+	tids = malloc(threads * sizeof(pthread_t));
+	FAIL_IF(!tids);
+
+	running = true;
+	threads_starting = threads;
+	for (i = 0; i < threads; i++) {
+		rc = pthread_create(&tids[i], NULL, signal_fpu_c, NULL);
+		FAIL_IF(rc);
+	}
+
+	setbuf(stdout, NULL);
+	printf("\tWaiting for all workers to start...");
+	while (threads_starting)
+		asm volatile("": : :"memory");
+	printf("done\n");
+
+	printf("\tSending signals to all threads %d times...", ITERATIONS);
+	for (i = 0; i < ITERATIONS; i++) {
+		for (j = 0; j < threads; j++) {
+			pthread_kill(tids[j], SIGUSR1);
+		}
+		sleep(1);
+	}
+	printf("done\n");
+
+	printf("\tStopping workers...");
+	running = 0;
+	for (i = 0; i < threads; i++) {
+		pthread_join(tids[i], &rc_p);
+
+		/*
+		 * Harness will say the fail was here, look at why signal_fpu
+		 * returned
+		 */
+		if ((long) rc_p || bad_context)
+			printf("oops\n");
+		if (bad_context)
+			fprintf(stderr, "\t!! bad_context is true\n");
+		FAIL_IF((long) rc_p || bad_context);
+	}
+	printf("done\n");
+
+	free(tids);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_signal_fpu, "fpu_signal");
+}
diff --git a/tools/testing/selftests/powerpc/math/fpu_syscall.c b/tools/testing/selftests/powerpc/math/fpu_syscall.c
new file mode 100644
index 000000000000..751d46b133fc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/fpu_syscall.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the FPU registers change across a syscall (fork).
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+
+#include "utils.h"
+#include "fpu.h"
+
+extern int test_fpu(double *darray, pid_t *pid);
+
+double darray[32];
+
+int syscall_fpu(void)
+{
+	pid_t fork_pid;
+	int i;
+	int ret;
+	int child_ret;
+
+	randomise_darray(darray, ARRAY_SIZE(darray));
+
+	for (i = 0; i < 1000; i++) {
+		/* test_fpu will fork() */
+		ret = test_fpu(darray, &fork_pid);
+		if (fork_pid == -1)
+			return -1;
+		if (fork_pid == 0)
+			exit(ret);
+		waitpid(fork_pid, &child_ret, 0);
+		if (ret || child_ret)
+			return 1;
+	}
+
+	return 0;
+}
+
+int test_syscall_fpu(void)
+{
+	/*
+	 * Setup an environment with much context switching
+	 */
+	pid_t pid2;
+	pid_t pid = fork();
+	int ret;
+	int child_ret;
+	FAIL_IF(pid == -1);
+
+	pid2 = fork();
+	/* Can't FAIL_IF(pid2 == -1); because already forked once */
+	if (pid2 == -1) {
+		/*
+		 * Couldn't fork, ensure test is a fail
+		 */
+		child_ret = ret = 1;
+	} else {
+		ret = syscall_fpu();
+		if (pid2)
+			waitpid(pid2, &child_ret, 0);
+		else
+			exit(ret);
+	}
+
+	ret |= child_ret;
+
+	if (pid)
+		waitpid(pid, &child_ret, 0);
+	else
+		exit(ret);
+
+	FAIL_IF(ret || child_ret);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_syscall_fpu, "syscall_fpu");
+
+}
diff --git a/tools/testing/selftests/powerpc/math/mma.S b/tools/testing/selftests/powerpc/math/mma.S
new file mode 100644
index 000000000000..61cc88b1b26b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/mma.S
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * Test basic matrix multiply assist (MMA) functionality if available.
+ *
+ * Copyright 2020, Alistair Popple, IBM Corp.
+ */
+	.global test_mma
+test_mma:
+	/* Load accumulator via VSX registers from image passed in r3 */
+	lxvh8x	4,0,3
+	lxvh8x	5,0,4
+
+	/* Clear and prime the accumulator (xxsetaccz) */
+	.long	0x7c030162
+
+	/* Prime the accumulator with MMA VSX move to accumulator
+	* X-form (xxmtacc) (not needed due to above zeroing) */
+	//.long 0x7c010162
+
+	/* xvi16ger2s */
+	.long	0xec042958
+
+	/* Deprime the accumulator - xxmfacc 0 */
+	.long 0x7c000162
+
+	/* Store result in image passed in r5 */
+	stxvw4x	0,0,5
+	addi	5,5,16
+	stxvw4x	1,0,5
+	addi	5,5,16
+	stxvw4x	2,0,5
+	addi	5,5,16
+	stxvw4x	3,0,5
+	addi	5,5,16
+
+	blr
diff --git a/tools/testing/selftests/powerpc/math/mma.c b/tools/testing/selftests/powerpc/math/mma.c
new file mode 100644
index 000000000000..3a71808c993f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/mma.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test basic matrix multiply assist (MMA) functionality if available.
+ *
+ * Copyright 2020, Alistair Popple, IBM Corp.
+ */
+#include <stdio.h>
+#include <stdint.h>
+
+#include "utils.h"
+
+extern void test_mma(uint16_t (*)[8], uint16_t (*)[8], uint32_t (*)[4*4]);
+
+static int mma(void)
+{
+	int i;
+	int rc = 0;
+	uint16_t x[] = {1, 0, 2, 0, 3, 0, 4, 0};
+	uint16_t y[] = {1, 0, 2, 0, 3, 0, 4, 0};
+	uint32_t z[4*4];
+	uint32_t exp[4*4] = {1, 2, 3, 4,
+			     2, 4, 6, 8,
+			     3, 6, 9, 12,
+			     4, 8, 12, 16};
+
+	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_ARCH_3_1), "Need ISAv3.1");
+	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_MMA), "Need MMA");
+
+	test_mma(&x, &y, &z);
+
+	for (i = 0; i < 16; i++) {
+		printf("MMA[%d] = %d ", i, z[i]);
+
+		if (z[i] == exp[i]) {
+			printf(" (Correct)\n");
+		} else {
+			printf(" (Incorrect)\n");
+			rc = 1;
+		}
+	}
+
+	return rc;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(mma, "mma");
+}
diff --git a/tools/testing/selftests/powerpc/math/settings b/tools/testing/selftests/powerpc/math/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/math/vmx_asm.S b/tools/testing/selftests/powerpc/math/vmx_asm.S
new file mode 100644
index 000000000000..11b0704c597d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vmx_asm.S
@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+#include "vmx_asm.h"
+
+# Should be safe from C, only touches r4, r5 and v0,v1,v2
+FUNC_START(check_vmx)
+	PUSH_BASIC_STACK(32)
+	mr r4,r3
+	li	r3,1 # assume a bad result
+	li	r5,0
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v20
+	vmr	v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v21
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v22
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v23
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v24
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v25
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v26
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v27
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v28
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v29
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v30
+	vand	v2,v2,v1
+
+	addi	r5,r5,16
+	lvx	v0,r5,r4
+	vcmpequd.	v1,v0,v31
+	vand	v2,v2,v1
+
+	li	r5,STACK_FRAME_LOCAL(0,0)
+	stvx	v2,r5,sp
+	ldx	r0,r5,sp
+	cmpdi	r0,0xffffffffffffffff
+	bne	1f
+	li	r3,0
+1:	POP_BASIC_STACK(32)
+	blr
+FUNC_END(check_vmx)
+
+# Safe from C
+FUNC_START(test_vmx)
+	# r3 holds pointer to where to put the result of fork
+	# r4 holds pointer to the pid
+	# v20-v31 are non-volatile
+	PUSH_BASIC_STACK(512)
+	std	r3,STACK_FRAME_PARAM(0)(sp) # Address of varray
+	std r4,STACK_FRAME_PARAM(1)(sp) # address of pid
+	PUSH_VMX(STACK_FRAME_LOCAL(2,0),r4)
+
+	bl load_vmx
+	nop
+
+	li	r0,__NR_fork
+	sc
+	# Pass the result of fork back to the caller
+	ld	r9,STACK_FRAME_PARAM(1)(sp)
+	std	r3,0(r9)
+
+	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl check_vmx
+	nop
+
+	POP_VMX(STACK_FRAME_LOCAL(2,0),r4)
+	POP_BASIC_STACK(512)
+	blr
+FUNC_END(test_vmx)
+
+# int preempt_vmx(vector int *varray, int *threads_starting, int *running)
+# On starting will (atomically) decrement threads_starting as a signal that
+# the VMX have been loaded with varray. Will proceed to check the validity of
+# the VMX registers while running is not zero.
+FUNC_START(preempt_vmx)
+	PUSH_BASIC_STACK(512)
+	std r3,STACK_FRAME_PARAM(0)(sp) # vector int *varray
+	std r4,STACK_FRAME_PARAM(1)(sp) # int *threads_starting
+	std r5,STACK_FRAME_PARAM(2)(sp) # int *running
+	# VMX need to write to 16 byte aligned addresses, skip STACK_FRAME_LOCAL(3,0)
+	PUSH_VMX(STACK_FRAME_LOCAL(4,0),r4)
+
+	bl load_vmx
+	nop
+
+	sync
+	# Atomic DEC
+	ld r3,STACK_FRAME_PARAM(1)(sp)
+1:	lwarx r4,0,r3
+	addi r4,r4,-1
+	stwcx. r4,0,r3
+	bne- 1b
+
+2:	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl check_vmx
+	nop
+	cmpdi r3,0
+	bne 3f
+	ld r4,STACK_FRAME_PARAM(2)(sp)
+	ld r5,0(r4)
+	cmpwi r5,0
+	bne 2b
+
+3:	POP_VMX(STACK_FRAME_LOCAL(4,0),r4)
+	POP_BASIC_STACK(512)
+	blr
+FUNC_END(preempt_vmx)
diff --git a/tools/testing/selftests/powerpc/math/vmx_preempt.c b/tools/testing/selftests/powerpc/math/vmx_preempt.c
new file mode 100644
index 000000000000..6f7cf400c687
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vmx_preempt.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the VMX registers change across preemption.
+ * Two things should be noted here a) The check_vmx function in asm only checks
+ * the non volatile registers as it is reused from the syscall test b) There is
+ * no way to be sure preemption happened so this test just uses many threads
+ * and a long wait. As such, a successful test doesn't mean much but a failure
+ * is bad.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include "utils.h"
+
+/* Time to wait for workers to get preempted (seconds) */
+#define PREEMPT_TIME 20
+/*
+ * Factor by which to multiply number of online CPUs for total number of
+ * worker threads
+ */
+#define THREAD_FACTOR 8
+
+__thread vector int varray[] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10,11,12},
+	{13,14,15,16},{17,18,19,20},{21,22,23,24},
+	{25,26,27,28},{29,30,31,32},{33,34,35,36},
+	{37,38,39,40},{41,42,43,44},{45,46,47,48}};
+
+int threads_starting;
+int running;
+
+extern int preempt_vmx(vector int *varray, int *threads_starting, int *running);
+
+void *preempt_vmx_c(void *p)
+{
+	int i, j;
+	long rc;
+
+	srand(pthread_self());
+	for (i = 0; i < 12; i++)
+		for (j = 0; j < 4; j++)
+			varray[i][j] = rand();
+
+	rc = preempt_vmx(varray, &threads_starting, &running);
+
+	return (void *)rc;
+}
+
+int test_preempt_vmx(void)
+{
+	int i, rc, threads;
+	pthread_t *tids;
+
+	// vcmpequd used in vmx_asm.S is v2.07
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * THREAD_FACTOR;
+	tids = malloc(threads * sizeof(pthread_t));
+	FAIL_IF(!tids);
+
+	running = true;
+	threads_starting = threads;
+	for (i = 0; i < threads; i++) {
+		rc = pthread_create(&tids[i], NULL, preempt_vmx_c, NULL);
+		FAIL_IF(rc);
+	}
+
+	setbuf(stdout, NULL);
+	/* Not really nessesary but nice to wait for every thread to start */
+	printf("\tWaiting for all workers to start...");
+	while(threads_starting)
+		asm volatile("": : :"memory");
+	printf("done\n");
+
+	printf("\tWaiting for %d seconds to let some workers get preempted...", PREEMPT_TIME);
+	sleep(PREEMPT_TIME);
+	printf("done\n");
+
+	printf("\tStopping workers...");
+	/*
+	 * Working are checking this value every loop. In preempt_vmx 'cmpwi r5,0; bne 2b'.
+	 * r5 will have loaded the value of running.
+	 */
+	running = 0;
+	for (i = 0; i < threads; i++) {
+		void *rc_p;
+		pthread_join(tids[i], &rc_p);
+
+		/*
+		 * Harness will say the fail was here, look at why preempt_vmx
+		 * returned
+		 */
+		if ((long) rc_p)
+			printf("oops\n");
+		FAIL_IF((long) rc_p);
+	}
+	printf("done\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_preempt_vmx, "vmx_preempt");
+}
diff --git a/tools/testing/selftests/powerpc/math/vmx_signal.c b/tools/testing/selftests/powerpc/math/vmx_signal.c
new file mode 100644
index 000000000000..c307dff19c12
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vmx_signal.c
@@ -0,0 +1,156 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the VMX registers are correctly reported in a
+ * signal context. Each worker just spins checking its VMX registers, at some
+ * point a signal will interrupt it and C code will check the signal context
+ * ensuring it is also the same.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <altivec.h>
+
+#include "utils.h"
+
+/* Number of times each thread should receive the signal */
+#define ITERATIONS 10
+/*
+ * Factor by which to multiply number of online CPUs for total number of
+ * worker threads
+ */
+#define THREAD_FACTOR 8
+
+__thread vector int varray[] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10,11,12},
+	{13,14,15,16},{17,18,19,20},{21,22,23,24},
+	{25,26,27,28},{29,30,31,32},{33,34,35,36},
+	{37,38,39,40},{41,42,43,44},{45,46,47,48}};
+
+bool bad_context;
+int running;
+int threads_starting;
+
+extern int preempt_vmx(vector int *varray, int *threads_starting, int *sentinal);
+
+void signal_vmx_sig(int sig, siginfo_t *info, void *context)
+{
+	int i;
+	ucontext_t *uc = context;
+	mcontext_t *mc = &uc->uc_mcontext;
+
+	/* Only the non volatiles were loaded up */
+	for (i = 20; i < 32; i++) {
+		if (memcmp(mc->v_regs->vrregs[i], &varray[i - 20], 16)) {
+			int j;
+			/*
+			 * Shouldn't printf() in a signal handler, however, this is a
+			 * test and we've detected failure. Understanding what failed
+			 * is paramount. All that happens after this is tests exit with
+			 * failure.
+			 */
+			printf("VMX mismatch at reg %d!\n", i);
+			printf("Reg | Actual                  | Expected\n");
+			for (j = 20; j < 32; j++) {
+				printf("%d  | 0x%04x%04x%04x%04x      | 0x%04x%04x%04x%04x\n", j, mc->v_regs->vrregs[j][0],
+					   mc->v_regs->vrregs[j][1], mc->v_regs->vrregs[j][2], mc->v_regs->vrregs[j][3],
+					   varray[j - 20][0], varray[j - 20][1], varray[j - 20][2], varray[j - 20][3]);
+			}
+			bad_context = true;
+			break;
+		}
+	}
+}
+
+void *signal_vmx_c(void *p)
+{
+	int i, j;
+	long rc;
+	struct sigaction act;
+	act.sa_sigaction = signal_vmx_sig;
+	act.sa_flags = SA_SIGINFO;
+	rc = sigaction(SIGUSR1, &act, NULL);
+	if (rc)
+		return p;
+
+	srand(pthread_self());
+	for (i = 0; i < 12; i++)
+		for (j = 0; j < 4; j++)
+			varray[i][j] = rand();
+
+	rc = preempt_vmx(varray, &threads_starting, &running);
+
+	return (void *) rc;
+}
+
+int test_signal_vmx(void)
+{
+	int i, j, rc, threads;
+	void *rc_p;
+	pthread_t *tids;
+
+	// vcmpequd used in vmx_asm.S is v2.07
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * THREAD_FACTOR;
+	tids = malloc(threads * sizeof(pthread_t));
+	FAIL_IF(!tids);
+
+	running = true;
+	threads_starting = threads;
+	for (i = 0; i < threads; i++) {
+		rc = pthread_create(&tids[i], NULL, signal_vmx_c, NULL);
+		FAIL_IF(rc);
+	}
+
+	setbuf(stdout, NULL);
+	printf("\tWaiting for %d workers to start... %d", threads, threads_starting);
+	while (threads_starting) {
+		asm volatile("": : :"memory");
+		usleep(1000);
+		printf(", %d", threads_starting);
+	}
+	printf(" ...done\n");
+
+	printf("\tSending signals to all threads %d times...", ITERATIONS);
+	for (i = 0; i < ITERATIONS; i++) {
+		for (j = 0; j < threads; j++) {
+			pthread_kill(tids[j], SIGUSR1);
+		}
+		sleep(1);
+	}
+	printf("done\n");
+
+	printf("\tKilling workers...");
+	running = 0;
+	for (i = 0; i < threads; i++) {
+		pthread_join(tids[i], &rc_p);
+
+		/*
+		 * Harness will say the fail was here, look at why signal_vmx
+		 * returned
+		 */
+		if ((long) rc_p || bad_context)
+			printf("oops\n");
+		if (bad_context)
+			fprintf(stderr, "\t!! bad_context is true\n");
+		FAIL_IF((long) rc_p || bad_context);
+	}
+	printf("done\n");
+
+	free(tids);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	test_harness_set_timeout(360);
+	return test_harness(test_signal_vmx, "vmx_signal");
+}
diff --git a/tools/testing/selftests/powerpc/math/vmx_syscall.c b/tools/testing/selftests/powerpc/math/vmx_syscall.c
new file mode 100644
index 000000000000..03c78dfe3444
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vmx_syscall.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the VMX registers change across a syscall (fork).
+ */
+
+#include <altivec.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include "utils.h"
+
+vector int varray[] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10,11,12},
+	{13,14,15,16},{17,18,19,20},{21,22,23,24},
+	{25,26,27,28},{29,30,31,32},{33,34,35,36},
+	{37,38,39,40},{41,42,43,44},{45,46,47,48}};
+
+extern int test_vmx(vector int *varray, pid_t *pid);
+
+int vmx_syscall(void)
+{
+	pid_t fork_pid;
+	int i;
+	int ret;
+	int child_ret;
+	for (i = 0; i < 1000; i++) {
+		/* test_vmx will fork() */
+		ret = test_vmx(varray, &fork_pid);
+		if (fork_pid == -1)
+			return -1;
+		if (fork_pid == 0)
+			exit(ret);
+		waitpid(fork_pid, &child_ret, 0);
+		if (ret || child_ret)
+			return 1;
+	}
+
+	return 0;
+}
+
+int test_vmx_syscall(void)
+{
+	/*
+	 * Setup an environment with much context switching
+	 */
+	pid_t pid2;
+	pid_t pid;
+	int ret;
+	int child_ret;
+
+	// vcmpequd used in vmx_asm.S is v2.07
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	pid = fork();
+	FAIL_IF(pid == -1);
+
+	pid2 = fork();
+	ret = vmx_syscall();
+	/* Can't FAIL_IF(pid2 == -1); because we've already forked */
+	if (pid2 == -1) {
+		/*
+		 * Couldn't fork, ensure child_ret is set and is a fail
+		 */
+		ret = child_ret = 1;
+	} else {
+		if (pid2)
+			waitpid(pid2, &child_ret, 0);
+		else
+			exit(ret);
+	}
+
+	ret |= child_ret;
+
+	if (pid)
+		waitpid(pid, &child_ret, 0);
+	else
+		exit(ret);
+
+	FAIL_IF(ret || child_ret);
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_vmx_syscall, "vmx_syscall");
+
+}
diff --git a/tools/testing/selftests/powerpc/math/vsx_asm.S b/tools/testing/selftests/powerpc/math/vsx_asm.S
new file mode 100644
index 000000000000..ffc165d984cc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vsx_asm.S
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+#include "vsx_asm.h"
+
+#long check_vsx(vector int *r3);
+#This function wraps storeing VSX regs to the end of an array and a
+#call to a comparison function in C which boils down to a memcmp()
+FUNC_START(check_vsx)
+	PUSH_BASIC_STACK(32)
+	std	r3,STACK_FRAME_PARAM(0)(sp)
+	addi r3, r3, 16 * 12 #Second half of array
+	bl store_vsx
+	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl vsx_memcmp
+	POP_BASIC_STACK(32)
+	blr
+FUNC_END(check_vsx)
+
+# int preempt_vmx(vector int *varray, int *threads_starting,
+#                 int *running);
+# On starting will (atomically) decrement threads_starting as a signal
+# that the VMX have been loaded with varray. Will proceed to check the
+# validity of the VMX registers while running is not zero.
+FUNC_START(preempt_vsx)
+	PUSH_BASIC_STACK(512)
+	std r3,STACK_FRAME_PARAM(0)(sp) # vector int *varray
+	std r4,STACK_FRAME_PARAM(1)(sp) # int *threads_starting
+	std r5,STACK_FRAME_PARAM(2)(sp) # int *running
+
+	bl load_vsx
+	nop
+
+	sync
+	# Atomic DEC
+	ld r3,STACK_FRAME_PARAM(1)(sp)
+1:	lwarx r4,0,r3
+	addi r4,r4,-1
+	stwcx. r4,0,r3
+	bne- 1b
+
+2:	ld r3,STACK_FRAME_PARAM(0)(sp)
+	bl check_vsx
+	nop
+	cmpdi r3,0
+	bne 3f
+	ld r4,STACK_FRAME_PARAM(2)(sp)
+	ld r5,0(r4)
+	cmpwi r5,0
+	bne 2b
+
+3:	POP_BASIC_STACK(512)
+	blr
+FUNC_END(preempt_vsx)
diff --git a/tools/testing/selftests/powerpc/math/vsx_preempt.c b/tools/testing/selftests/powerpc/math/vsx_preempt.c
new file mode 100644
index 000000000000..d1601bb889d4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/math/vsx_preempt.c
@@ -0,0 +1,145 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ *
+ * This test attempts to see if the VSX registers change across preemption.
+ * There is no way to be sure preemption happened so this test just
+ * uses many threads and a long wait. As such, a successful test
+ * doesn't mean much but a failure is bad.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <pthread.h>
+
+#include "utils.h"
+
+/* Time to wait for workers to get preempted (seconds) */
+#define PREEMPT_TIME 20
+/*
+ * Factor by which to multiply number of online CPUs for total number of
+ * worker threads
+ */
+#define THREAD_FACTOR 8
+
+/*
+ * Ensure there is twice the number of non-volatile VMX regs!
+ * check_vmx() is going to use the other half as space to put the live
+ * registers before calling vsx_memcmp()
+ */
+__thread vector int varray[24] = {
+	{1, 2, 3, 4 }, {5, 6, 7, 8 }, {9, 10,11,12},
+	{13,14,15,16}, {17,18,19,20}, {21,22,23,24},
+	{25,26,27,28}, {29,30,31,32}, {33,34,35,36},
+	{37,38,39,40}, {41,42,43,44}, {45,46,47,48}
+};
+
+int threads_starting;
+int running;
+
+extern long preempt_vsx(vector int *varray, int *threads_starting, int *running);
+
+long vsx_memcmp(vector int *a) {
+	vector int zero = {0, 0, 0, 0};
+	int i;
+
+	FAIL_IF(a != varray);
+
+	for(i = 0; i < 12; i++) {
+		if (memcmp(&a[i + 12], &zero, sizeof(vector int)) == 0) {
+			fprintf(stderr, "Detected zero from the VSX reg %d\n", i + 12);
+			return 2;
+		}
+	}
+
+	if (memcmp(a, &a[12], 12 * sizeof(vector int))) {
+		long *p = (long *)a;
+		fprintf(stderr, "VSX mismatch\n");
+		for (i = 0; i < 24; i=i+2)
+			fprintf(stderr, "%d: 0x%08lx%08lx | 0x%08lx%08lx\n",
+					i/2 + i%2 + 20, p[i], p[i + 1], p[i + 24], p[i + 25]);
+		return 1;
+	}
+	return 0;
+}
+
+void *preempt_vsx_c(void *p)
+{
+	int i, j;
+	long rc;
+	srand(pthread_self());
+	for (i = 0; i < 12; i++)
+		for (j = 0; j < 4; j++) {
+			varray[i][j] = rand();
+			/* Don't want zero because it hides kernel problems */
+			if (varray[i][j] == 0)
+				j--;
+		}
+	rc = preempt_vsx(varray, &threads_starting, &running);
+	if (rc == 2)
+		fprintf(stderr, "Caught zeros in VSX compares\n");
+	return (void *)rc;
+}
+
+int test_preempt_vsx(void)
+{
+	int i, rc, threads;
+	pthread_t *tids;
+
+	SKIP_IF(!have_hwcap(PPC_FEATURE_HAS_VSX));
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * THREAD_FACTOR;
+	tids = malloc(threads * sizeof(pthread_t));
+	FAIL_IF(!tids);
+
+	running = true;
+	threads_starting = threads;
+	for (i = 0; i < threads; i++) {
+		rc = pthread_create(&tids[i], NULL, preempt_vsx_c, NULL);
+		FAIL_IF(rc);
+	}
+
+	setbuf(stdout, NULL);
+	/* Not really nessesary but nice to wait for every thread to start */
+	printf("\tWaiting for %d workers to start...", threads_starting);
+	while(threads_starting)
+		asm volatile("": : :"memory");
+	printf("done\n");
+
+	printf("\tWaiting for %d seconds to let some workers get preempted...", PREEMPT_TIME);
+	sleep(PREEMPT_TIME);
+	printf("done\n");
+
+	printf("\tStopping workers...");
+	/*
+	 * Working are checking this value every loop. In preempt_vsx 'cmpwi r5,0; bne 2b'.
+	 * r5 will have loaded the value of running.
+	 */
+	running = 0;
+	for (i = 0; i < threads; i++) {
+		void *rc_p;
+		pthread_join(tids[i], &rc_p);
+
+		/*
+		 * Harness will say the fail was here, look at why preempt_vsx
+		 * returned
+		 */
+		if ((long) rc_p)
+			printf("oops\n");
+		FAIL_IF((long) rc_p);
+	}
+	printf("done\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_preempt_vsx, "vsx_preempt");
+}
diff --git a/tools/testing/selftests/powerpc/mce/.gitignore b/tools/testing/selftests/powerpc/mce/.gitignore
new file mode 100644
index 000000000000..f5921462a495
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mce/.gitignore
@@ -0,0 +1 @@
+inject-ra-err
diff --git a/tools/testing/selftests/powerpc/mce/Makefile b/tools/testing/selftests/powerpc/mce/Makefile
new file mode 100644
index 000000000000..ce4ed679aaaf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mce/Makefile
@@ -0,0 +1,8 @@
+#SPDX-License-Identifier: GPL-2.0-or-later
+
+TEST_GEN_PROGS := inject-ra-err
+
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c
diff --git a/tools/testing/selftests/powerpc/mce/inject-ra-err.c b/tools/testing/selftests/powerpc/mce/inject-ra-err.c
new file mode 100644
index 000000000000..94323c34d9a6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mce/inject-ra-err.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "vas-api.h"
+#include "utils.h"
+
+static bool faulted;
+
+static void sigbus_handler(int n, siginfo_t *info, void *ctxt_v)
+{
+	ucontext_t *ctxt = (ucontext_t *)ctxt_v;
+	struct pt_regs *regs = ctxt->uc_mcontext.regs;
+
+	faulted = true;
+	regs->nip += 4;
+}
+
+static int test_ra_error(void)
+{
+	struct vas_tx_win_open_attr attr;
+	int fd, *paste_addr;
+	char *devname = "/dev/crypto/nx-gzip";
+	struct sigaction act = {
+		.sa_sigaction = sigbus_handler,
+		.sa_flags = SA_SIGINFO,
+	};
+
+	memset(&attr, 0, sizeof(attr));
+	attr.version = 1;
+	attr.vas_id = 0;
+
+	SKIP_IF(access(devname, F_OK));
+
+	fd = open(devname, O_RDWR);
+	FAIL_IF(fd < 0);
+	FAIL_IF(ioctl(fd, VAS_TX_WIN_OPEN, &attr) < 0);
+	FAIL_IF(sigaction(SIGBUS, &act, NULL) != 0);
+
+	paste_addr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0ULL);
+
+	/* The following assignment triggers exception */
+	mb();
+	*paste_addr = 1;
+	mb();
+
+	FAIL_IF(!faulted);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_ra_error, "inject-ra-err");
+}
+
diff --git a/tools/testing/selftests/powerpc/mce/settings b/tools/testing/selftests/powerpc/mce/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mce/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/mce/vas-api.h b/tools/testing/selftests/powerpc/mce/vas-api.h
new file mode 120000
index 000000000000..1455c1bcd351
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mce/vas-api.h
@@ -0,0 +1 @@
+../../../../../arch/powerpc/include/uapi/asm/vas-api.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/mm/.gitignore b/tools/testing/selftests/powerpc/mm/.gitignore
index b43ade0ec861..0df1a3afc5e2 100644
--- a/tools/testing/selftests/powerpc/mm/.gitignore
+++ b/tools/testing/selftests/powerpc/mm/.gitignore
@@ -1,3 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-only
+bad_accesses
+exec_prot
 hugetlb_vs_thp_test
+large_vm_fork_separation
+large_vm_gpr_corruption
+pkey_exec_prot
+pkey_siginfo
+prot_sao
+segv_errors
+stack_expansion_ldst
+stack_expansion_signal
 subpage_prot
 tempfile
+tlbie_test
+wild_bctr
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile
index 41cc3ed66818..aab058ecb352 100644
--- a/tools/testing/selftests/powerpc/mm/Makefile
+++ b/tools/testing/selftests/powerpc/mm/Makefile
@@ -1,16 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0
 noarg:
 	$(MAKE) -C ../
 
-TEST_PROGS := hugetlb_vs_thp_test subpage_prot
+TEST_GEN_PROGS := hugetlb_vs_thp_test subpage_prot prot_sao segv_errors wild_bctr \
+		  large_vm_fork_separation bad_accesses exec_prot pkey_exec_prot \
+		  pkey_siginfo stack_expansion_signal stack_expansion_ldst \
+		  large_vm_gpr_corruption
+TEST_PROGS := stress_code_patching.sh
 
-all: $(TEST_PROGS) tempfile
-
-$(TEST_PROGS): ../harness.c
+TEST_GEN_PROGS_EXTENDED := tlbie_test
+TEST_GEN_FILES := tempfile
 
+top_srcdir = ../../../../..
 include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
+
+$(OUTPUT)/prot_sao: ../utils.c
+
+$(OUTPUT)/wild_bctr: CFLAGS += -m64
+$(OUTPUT)/large_vm_fork_separation: CFLAGS += -m64
+$(OUTPUT)/large_vm_gpr_corruption: CFLAGS += -m64
+$(OUTPUT)/bad_accesses: CFLAGS += -m64
+$(OUTPUT)/exec_prot: CFLAGS += -m64
+$(OUTPUT)/pkey_exec_prot: CFLAGS += -m64
+$(OUTPUT)/pkey_siginfo: CFLAGS += -m64
+
+$(OUTPUT)/stack_expansion_signal: ../utils.c ../pmu/lib.c
+
+$(OUTPUT)/stack_expansion_ldst: CFLAGS += -fno-stack-protector
+$(OUTPUT)/stack_expansion_ldst: ../utils.c
 
-tempfile:
-	dd if=/dev/zero of=tempfile bs=64k count=1
+$(OUTPUT)/tempfile:
+	dd if=/dev/zero of=$@ bs=64k count=1 status=none
 
-clean:
-	rm -f $(TEST_PROGS) tempfile
+$(OUTPUT)/tlbie_test: LDLIBS += -lpthread
+$(OUTPUT)/pkey_siginfo: LDLIBS += -lpthread
diff --git a/tools/testing/selftests/powerpc/mm/bad_accesses.c b/tools/testing/selftests/powerpc/mm/bad_accesses.c
new file mode 100644
index 000000000000..65d2148b05dc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/bad_accesses.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2019, Michael Ellerman, IBM Corp.
+//
+// Test that out-of-bounds reads/writes behave as expected.
+
+#include <setjmp.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+// Old distros (Ubuntu 16.04 at least) don't define this
+#ifndef SEGV_BNDERR
+#define SEGV_BNDERR	3
+#endif
+
+// 64-bit kernel is always here
+#define PAGE_OFFSET	(0xcul << 60)
+
+static unsigned long kernel_virt_end;
+
+static volatile int fault_code;
+static volatile unsigned long fault_addr;
+static jmp_buf setjmp_env;
+
+static void segv_handler(int n, siginfo_t *info, void *ctxt_v)
+{
+	fault_code = info->si_code;
+	fault_addr = (unsigned long)info->si_addr;
+	siglongjmp(setjmp_env, 1);
+}
+
+int bad_access(char *p, bool write)
+{
+	char x = 0;
+
+	fault_code = 0;
+	fault_addr = 0;
+
+	if (sigsetjmp(setjmp_env, 1) == 0) {
+		if (write)
+			*p = 1;
+		else
+			x = *p;
+
+		printf("Bad - no SEGV! (%c)\n", x);
+		return 1;
+	}
+
+	// If we see MAPERR that means we took a page fault rather than an SLB
+	// miss. We only expect to take page faults for addresses within the
+	// valid kernel range.
+	FAIL_IF(fault_code == SEGV_MAPERR && \
+		(fault_addr < PAGE_OFFSET || fault_addr >= kernel_virt_end));
+
+	FAIL_IF(fault_code != SEGV_MAPERR && fault_code != SEGV_BNDERR);
+
+	return 0;
+}
+
+static int test(void)
+{
+	unsigned long i, j, addr, region_shift, page_shift, page_size;
+	struct sigaction sig;
+	bool hash_mmu;
+
+	sig = (struct sigaction) {
+		.sa_sigaction = segv_handler,
+		.sa_flags = SA_SIGINFO,
+	};
+
+	FAIL_IF(sigaction(SIGSEGV, &sig, NULL) != 0);
+
+	FAIL_IF(using_hash_mmu(&hash_mmu));
+
+	page_size = sysconf(_SC_PAGESIZE);
+	if (page_size == (64 * 1024))
+		page_shift = 16;
+	else
+		page_shift = 12;
+
+	if (page_size == (64 * 1024) || !hash_mmu) {
+		region_shift = 52;
+
+		// We have 7 512T regions (4 kernel linear, vmalloc, io, vmemmap)
+		kernel_virt_end = PAGE_OFFSET + (7 * (512ul << 40));
+	} else if (page_size == (4 * 1024) && hash_mmu) {
+		region_shift = 46;
+
+		// We have 7 64T regions (4 kernel linear, vmalloc, io, vmemmap)
+		kernel_virt_end = PAGE_OFFSET + (7 * (64ul << 40));
+	} else
+		FAIL_IF(true);
+
+	printf("Using %s MMU, PAGE_SIZE = %dKB start address 0x%016lx\n",
+	       hash_mmu ? "hash" : "radix",
+	       (1 << page_shift) >> 10,
+	       1ul << region_shift);
+
+	// This generates access patterns like:
+	//   0x0010000000000000
+	//   0x0010000000010000
+	//   0x0010000000020000
+	//   ...
+	//   0x0014000000000000
+	//   0x0018000000000000
+	//   0x0020000000000000
+	//   0x0020000000010000
+	//   0x0020000000020000
+	//   ...
+	//   0xf400000000000000
+	//   0xf800000000000000
+
+	for (i = 1; i <= ((0xful << 60) >> region_shift); i++) {
+		for (j = page_shift - 1; j < 60; j++) {
+			unsigned long base, delta;
+
+			base  = i << region_shift;
+			delta = 1ul << j;
+
+			if (delta >= base)
+				break;
+
+			addr = (base | delta) & ~((1 << page_shift) - 1);
+
+			FAIL_IF(bad_access((char *)addr, false));
+			FAIL_IF(bad_access((char *)addr, true));
+		}
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	test_harness_set_timeout(300);
+	return test_harness(test, "bad_accesses");
+}
diff --git a/tools/testing/selftests/powerpc/mm/exec_prot.c b/tools/testing/selftests/powerpc/mm/exec_prot.c
new file mode 100644
index 000000000000..db75b2225de1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/exec_prot.c
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2022, Nicholas Miehlbradt, IBM Corporation
+ * based on pkey_exec_prot.c
+ *
+ * Test if applying execute protection on pages works as expected.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "pkeys.h"
+
+
+#define PPC_INST_NOP	0x60000000
+#define PPC_INST_TRAP	0x7fe00008
+#define PPC_INST_BLR	0x4e800020
+
+static volatile sig_atomic_t fault_code;
+static volatile sig_atomic_t remaining_faults;
+static volatile unsigned int *fault_addr;
+static unsigned long pgsize, numinsns;
+static unsigned int *insns;
+static bool pkeys_supported;
+
+static bool is_fault_expected(int fault_code)
+{
+	if (fault_code == SEGV_ACCERR)
+		return true;
+
+	/* Assume any pkey error is fine since pkey_exec_prot test covers them */
+	if (fault_code == SEGV_PKUERR && pkeys_supported)
+		return true;
+
+	return false;
+}
+
+static void trap_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+	/* Check if this fault originated from the expected address */
+	if (sinfo->si_addr != (void *)fault_addr)
+		sigsafe_err("got a fault for an unexpected address\n");
+
+	_exit(1);
+}
+
+static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+	fault_code = sinfo->si_code;
+
+	/* Check if this fault originated from the expected address */
+	if (sinfo->si_addr != (void *)fault_addr) {
+		sigsafe_err("got a fault for an unexpected address\n");
+		_exit(1);
+	}
+
+	/* Check if too many faults have occurred for a single test case */
+	if (!remaining_faults) {
+		sigsafe_err("got too many faults for the same address\n");
+		_exit(1);
+	}
+
+
+	/* Restore permissions in order to continue */
+	if (is_fault_expected(fault_code)) {
+		if (mprotect(insns, pgsize, PROT_READ | PROT_WRITE | PROT_EXEC)) {
+			sigsafe_err("failed to set access permissions\n");
+			_exit(1);
+		}
+	} else {
+		sigsafe_err("got a fault with an unexpected code\n");
+		_exit(1);
+	}
+
+	remaining_faults--;
+}
+
+static int check_exec_fault(int rights)
+{
+	/*
+	 * Jump to the executable region.
+	 *
+	 * The first iteration also checks if the overwrite of the
+	 * first instruction word from a trap to a no-op succeeded.
+	 */
+	fault_code = -1;
+	remaining_faults = 0;
+	if (!(rights & PROT_EXEC))
+		remaining_faults = 1;
+
+	FAIL_IF(mprotect(insns, pgsize, rights) != 0);
+	asm volatile("mtctr	%0; bctrl" : : "r"(insns));
+
+	FAIL_IF(remaining_faults != 0);
+	if (!(rights & PROT_EXEC))
+		FAIL_IF(!is_fault_expected(fault_code));
+
+	return 0;
+}
+
+static int test(void)
+{
+	struct sigaction segv_act, trap_act;
+	int i;
+
+	/* Skip the test if the CPU doesn't support Radix */
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
+
+	/* Check if pkeys are supported */
+	pkeys_supported = pkeys_unsupported() == 0;
+
+	/* Setup SIGSEGV handler */
+	segv_act.sa_handler = 0;
+	segv_act.sa_sigaction = segv_handler;
+	FAIL_IF(sigprocmask(SIG_SETMASK, 0, &segv_act.sa_mask) != 0);
+	segv_act.sa_flags = SA_SIGINFO;
+	segv_act.sa_restorer = 0;
+	FAIL_IF(sigaction(SIGSEGV, &segv_act, NULL) != 0);
+
+	/* Setup SIGTRAP handler */
+	trap_act.sa_handler = 0;
+	trap_act.sa_sigaction = trap_handler;
+	FAIL_IF(sigprocmask(SIG_SETMASK, 0, &trap_act.sa_mask) != 0);
+	trap_act.sa_flags = SA_SIGINFO;
+	trap_act.sa_restorer = 0;
+	FAIL_IF(sigaction(SIGTRAP, &trap_act, NULL) != 0);
+
+	/* Setup executable region */
+	pgsize = getpagesize();
+	numinsns = pgsize / sizeof(unsigned int);
+	insns = (unsigned int *)mmap(NULL, pgsize, PROT_READ | PROT_WRITE,
+				      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	FAIL_IF(insns == MAP_FAILED);
+
+	/* Write the instruction words */
+	for (i = 1; i < numinsns - 1; i++)
+		insns[i] = PPC_INST_NOP;
+
+	/*
+	 * Set the first instruction as an unconditional trap. If
+	 * the last write to this address succeeds, this should
+	 * get overwritten by a no-op.
+	 */
+	insns[0] = PPC_INST_TRAP;
+
+	/*
+	 * Later, to jump to the executable region, we use a branch
+	 * and link instruction (bctrl) which sets the return address
+	 * automatically in LR. Use that to return back.
+	 */
+	insns[numinsns - 1] = PPC_INST_BLR;
+
+	/*
+	 * Pick the first instruction's address from the executable
+	 * region.
+	 */
+	fault_addr = insns;
+
+	/*
+	 * Read an instruction word from the address when the page
+	 * is execute only. This should generate an access fault.
+	 */
+	fault_code = -1;
+	remaining_faults = 1;
+	printf("Testing read on --x, should fault...");
+	FAIL_IF(mprotect(insns, pgsize, PROT_EXEC) != 0);
+	i = *fault_addr;
+	FAIL_IF(remaining_faults != 0 || !is_fault_expected(fault_code));
+	printf("ok!\n");
+
+	/*
+	 * Write an instruction word to the address when the page
+	 * execute only. This should also generate an access fault.
+	 */
+	fault_code = -1;
+	remaining_faults = 1;
+	printf("Testing write on --x, should fault...");
+	FAIL_IF(mprotect(insns, pgsize, PROT_EXEC) != 0);
+	*fault_addr = PPC_INST_NOP;
+	FAIL_IF(remaining_faults != 0 || !is_fault_expected(fault_code));
+	printf("ok!\n");
+
+	printf("Testing exec on ---, should fault...");
+	FAIL_IF(check_exec_fault(PROT_NONE));
+	printf("ok!\n");
+
+	printf("Testing exec on r--, should fault...");
+	FAIL_IF(check_exec_fault(PROT_READ));
+	printf("ok!\n");
+
+	printf("Testing exec on -w-, should fault...");
+	FAIL_IF(check_exec_fault(PROT_WRITE));
+	printf("ok!\n");
+
+	printf("Testing exec on rw-, should fault...");
+	FAIL_IF(check_exec_fault(PROT_READ | PROT_WRITE));
+	printf("ok!\n");
+
+	printf("Testing exec on --x, should succeed...");
+	FAIL_IF(check_exec_fault(PROT_EXEC));
+	printf("ok!\n");
+
+	printf("Testing exec on r-x, should succeed...");
+	FAIL_IF(check_exec_fault(PROT_READ | PROT_EXEC));
+	printf("ok!\n");
+
+	printf("Testing exec on -wx, should succeed...");
+	FAIL_IF(check_exec_fault(PROT_WRITE | PROT_EXEC));
+	printf("ok!\n");
+
+	printf("Testing exec on rwx, should succeed...");
+	FAIL_IF(check_exec_fault(PROT_READ | PROT_WRITE | PROT_EXEC));
+	printf("ok!\n");
+
+	/* Cleanup */
+	FAIL_IF(munmap((void *)insns, pgsize));
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test, "exec_prot");
+}
diff --git a/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c b/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
index 49003674de4f..9932359ce38f 100644
--- a/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
+++ b/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <sys/mman.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c b/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c
new file mode 100644
index 000000000000..2363a7f3ab0d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/large_vm_fork_separation.c
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2019, Michael Ellerman, IBM Corp.
+//
+// Test that allocating memory beyond the memory limit and then forking is
+// handled correctly, ie. the child is able to access the mappings beyond the
+// memory limit and the child's writes are not visible to the parent.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+
+#ifndef MAP_FIXED_NOREPLACE
+#define MAP_FIXED_NOREPLACE	MAP_FIXED	// "Should be safe" above 512TB
+#endif
+
+
+static int test(void)
+{
+	int p2c[2], c2p[2], rc, status, c, *p;
+	unsigned long page_size;
+	pid_t pid;
+
+	page_size = sysconf(_SC_PAGESIZE);
+	SKIP_IF(page_size != 65536);
+
+	// Create a mapping at 512TB to allocate an extended_id
+	p = mmap((void *)(512ul << 40), page_size, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+	if (p == MAP_FAILED) {
+		perror("mmap");
+		printf("Error: couldn't mmap(), confirm kernel has 4TB support?\n");
+		return 1;
+	}
+
+	printf("parent writing %p = 1\n", p);
+	*p = 1;
+
+	FAIL_IF(pipe(p2c) == -1 || pipe(c2p) == -1);
+
+	pid = fork();
+	if (pid == 0) {
+		FAIL_IF(read(p2c[0], &c, 1) != 1);
+
+		pid = getpid();
+		printf("child writing  %p = %d\n", p, pid);
+		*p = pid;
+
+		FAIL_IF(write(c2p[1], &c, 1) != 1);
+		FAIL_IF(read(p2c[0], &c, 1) != 1);
+		exit(0);
+	}
+
+	c = 0;
+	FAIL_IF(write(p2c[1], &c, 1) != 1);
+	FAIL_IF(read(c2p[0], &c, 1) != 1);
+
+	// Prevent compiler optimisation
+	barrier();
+
+	rc = 0;
+	printf("parent reading %p = %d\n", p, *p);
+	if (*p != 1) {
+		printf("Error: BUG! parent saw child's write! *p = %d\n", *p);
+		rc = 1;
+	}
+
+	FAIL_IF(write(p2c[1], &c, 1) != 1);
+	FAIL_IF(waitpid(pid, &status, 0) == -1);
+	FAIL_IF(!WIFEXITED(status) || WEXITSTATUS(status));
+
+	if (rc == 0)
+		printf("success: test completed OK\n");
+
+	return rc;
+}
+
+int main(void)
+{
+	return test_harness(test, "large_vm_fork_separation");
+}
diff --git a/tools/testing/selftests/powerpc/mm/large_vm_gpr_corruption.c b/tools/testing/selftests/powerpc/mm/large_vm_gpr_corruption.c
new file mode 100644
index 000000000000..7da515f1da72
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/large_vm_gpr_corruption.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2022, Michael Ellerman, IBM Corp.
+//
+// Test that the 4PB address space SLB handling doesn't corrupt userspace registers
+// (r9-r13) due to a SLB fault while saving the PPR.
+//
+// The bug was introduced in f384796c4 ("powerpc/mm: Add support for handling > 512TB
+// address in SLB miss") and fixed in 4c2de74cc869 ("powerpc/64: Interrupts save PPR on
+// stack rather than thread_struct").
+//
+// To hit the bug requires the task struct and kernel stack to be in different segments.
+// Usually that requires more than 1TB of RAM, or if that's not practical, boot the kernel
+// with "disable_1tb_segments".
+//
+// The test works by creating mappings above 512TB, to trigger the large address space
+// support. It creates 64 mappings, double the size of the SLB, to cause SLB faults on
+// each access (assuming naive replacement). It then loops over those mappings touching
+// each, and checks that r9-r13 aren't corrupted.
+//
+// It then forks another child and tries again, because a new child process will get a new
+// kernel stack and thread struct allocated, which may be more optimally placed to trigger
+// the bug. It would probably be better to leave the previous child processes hanging
+// around, so that kernel stack & thread struct allocations are not reused, but that would
+// amount to a 30 second fork bomb. The current design reliably triggers the bug on
+// unpatched kernels.
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+#ifndef MAP_FIXED_NOREPLACE
+#define MAP_FIXED_NOREPLACE MAP_FIXED // "Should be safe" above 512TB
+#endif
+
+#define BASE_ADDRESS (1ul << 50) // 1PB
+#define STRIDE	     (2ul << 40) // 2TB
+#define SLB_SIZE     32
+#define NR_MAPPINGS  (SLB_SIZE * 2)
+
+static volatile sig_atomic_t signaled;
+
+static void signal_handler(int sig)
+{
+	signaled = 1;
+}
+
+#define CHECK_REG(_reg)                                                                \
+	if (_reg != _reg##_orig) {                                                     \
+		printf(str(_reg) " corrupted! Expected 0x%lx != 0x%lx\n", _reg##_orig, \
+		       _reg);                                                          \
+		_exit(1);                                                              \
+	}
+
+static int touch_mappings(void)
+{
+	unsigned long r9_orig, r10_orig, r11_orig, r12_orig, r13_orig;
+	unsigned long r9, r10, r11, r12, r13;
+	unsigned long addr, *p;
+	int i;
+
+	for (i = 0; i < NR_MAPPINGS; i++) {
+		addr = BASE_ADDRESS + (i * STRIDE);
+		p = (unsigned long *)addr;
+
+		asm volatile("mr   %0, %%r9	;" // Read original GPR values
+			     "mr   %1, %%r10	;"
+			     "mr   %2, %%r11	;"
+			     "mr   %3, %%r12	;"
+			     "mr   %4, %%r13	;"
+			     "std %10, 0(%11)   ;" // Trigger SLB fault
+			     "mr   %5, %%r9	;" // Save possibly corrupted values
+			     "mr   %6, %%r10	;"
+			     "mr   %7, %%r11	;"
+			     "mr   %8, %%r12	;"
+			     "mr   %9, %%r13	;"
+			     "mr   %%r9,  %0	;" // Restore original values
+			     "mr   %%r10, %1	;"
+			     "mr   %%r11, %2	;"
+			     "mr   %%r12, %3	;"
+			     "mr   %%r13, %4	;"
+			     : "=&b"(r9_orig), "=&b"(r10_orig), "=&b"(r11_orig),
+			       "=&b"(r12_orig), "=&b"(r13_orig), "=&b"(r9), "=&b"(r10),
+			       "=&b"(r11), "=&b"(r12), "=&b"(r13)
+			     : "b"(i), "b"(p)
+			     : "r9", "r10", "r11", "r12", "r13");
+
+		CHECK_REG(r9);
+		CHECK_REG(r10);
+		CHECK_REG(r11);
+		CHECK_REG(r12);
+		CHECK_REG(r13);
+	}
+
+	return 0;
+}
+
+static int test(void)
+{
+	unsigned long page_size, addr, *p;
+	struct sigaction action;
+	bool hash_mmu;
+	int i, status;
+	pid_t pid;
+
+	// This tests a hash MMU specific bug.
+	FAIL_IF(using_hash_mmu(&hash_mmu));
+	SKIP_IF(!hash_mmu);
+	// 4K kernels don't support 4PB address space
+	SKIP_IF(sysconf(_SC_PAGESIZE) < 65536);
+
+	page_size = sysconf(_SC_PAGESIZE);
+
+	for (i = 0; i < NR_MAPPINGS; i++) {
+		addr = BASE_ADDRESS + (i * STRIDE);
+
+		p = mmap((void *)addr, page_size, PROT_READ | PROT_WRITE,
+			 MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED_NOREPLACE, -1, 0);
+		if (p == MAP_FAILED) {
+			perror("mmap");
+			printf("Error: couldn't mmap(), confirm kernel has 4PB support?\n");
+			return 1;
+		}
+	}
+
+	action.sa_handler = signal_handler;
+	action.sa_flags = SA_RESTART;
+	FAIL_IF(sigaction(SIGALRM, &action, NULL) < 0);
+
+	// Seen to always crash in under ~10s on affected kernels.
+	alarm(30);
+
+	while (!signaled) {
+		// Fork new processes, to increase the chance that we hit the case where
+		// the kernel stack and task struct are in different segments.
+		pid = fork();
+		if (pid == 0)
+			exit(touch_mappings());
+
+		FAIL_IF(waitpid(-1, &status, 0) == -1);
+		FAIL_IF(WIFSIGNALED(status));
+		FAIL_IF(!WIFEXITED(status));
+		FAIL_IF(WEXITSTATUS(status));
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test, "large_vm_gpr_corruption");
+}
diff --git a/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c b/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c
new file mode 100644
index 000000000000..29b91b7456eb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/pkey_exec_prot.c
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2020, Sandipan Das, IBM Corp.
+ *
+ * Test if applying execute protection on pages using memory
+ * protection keys works as expected.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <unistd.h>
+
+#include "pkeys.h"
+
+#define PPC_INST_NOP	0x60000000
+#define PPC_INST_TRAP	0x7fe00008
+#define PPC_INST_BLR	0x4e800020
+
+static volatile sig_atomic_t fault_pkey, fault_code, fault_type;
+static volatile sig_atomic_t remaining_faults;
+static volatile unsigned int *fault_addr;
+static unsigned long pgsize, numinsns;
+static unsigned int *insns;
+
+static void trap_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+	/* Check if this fault originated from the expected address */
+	if (sinfo->si_addr != (void *) fault_addr)
+		sigsafe_err("got a fault for an unexpected address\n");
+
+	_exit(1);
+}
+
+static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+	int signal_pkey;
+
+	signal_pkey = siginfo_pkey(sinfo);
+	fault_code = sinfo->si_code;
+
+	/* Check if this fault originated from the expected address */
+	if (sinfo->si_addr != (void *) fault_addr) {
+		sigsafe_err("got a fault for an unexpected address\n");
+		_exit(1);
+	}
+
+	/* Check if too many faults have occurred for a single test case */
+	if (!remaining_faults) {
+		sigsafe_err("got too many faults for the same address\n");
+		_exit(1);
+	}
+
+
+	/* Restore permissions in order to continue */
+	switch (fault_code) {
+	case SEGV_ACCERR:
+		if (mprotect(insns, pgsize, PROT_READ | PROT_WRITE)) {
+			sigsafe_err("failed to set access permissions\n");
+			_exit(1);
+		}
+		break;
+	case SEGV_PKUERR:
+		if (signal_pkey != fault_pkey) {
+			sigsafe_err("got a fault for an unexpected pkey\n");
+			_exit(1);
+		}
+
+		switch (fault_type) {
+		case PKEY_DISABLE_ACCESS:
+			pkey_set_rights(fault_pkey, PKEY_UNRESTRICTED);
+			break;
+		case PKEY_DISABLE_EXECUTE:
+			/*
+			 * Reassociate the exec-only pkey with the region
+			 * to be able to continue. Unlike AMR, we cannot
+			 * set IAMR directly from userspace to restore the
+			 * permissions.
+			 */
+			if (mprotect(insns, pgsize, PROT_EXEC)) {
+				sigsafe_err("failed to set execute permissions\n");
+				_exit(1);
+			}
+			break;
+		default:
+			sigsafe_err("got a fault with an unexpected type\n");
+			_exit(1);
+		}
+		break;
+	default:
+		sigsafe_err("got a fault with an unexpected code\n");
+		_exit(1);
+	}
+
+	remaining_faults--;
+}
+
+static int test(void)
+{
+	struct sigaction segv_act, trap_act;
+	unsigned long rights;
+	int pkey, ret, i;
+
+	ret = pkeys_unsupported();
+	if (ret)
+		return ret;
+
+	/* Setup SIGSEGV handler */
+	segv_act.sa_handler = 0;
+	segv_act.sa_sigaction = segv_handler;
+	FAIL_IF(sigprocmask(SIG_SETMASK, 0, &segv_act.sa_mask) != 0);
+	segv_act.sa_flags = SA_SIGINFO;
+	segv_act.sa_restorer = 0;
+	FAIL_IF(sigaction(SIGSEGV, &segv_act, NULL) != 0);
+
+	/* Setup SIGTRAP handler */
+	trap_act.sa_handler = 0;
+	trap_act.sa_sigaction = trap_handler;
+	FAIL_IF(sigprocmask(SIG_SETMASK, 0, &trap_act.sa_mask) != 0);
+	trap_act.sa_flags = SA_SIGINFO;
+	trap_act.sa_restorer = 0;
+	FAIL_IF(sigaction(SIGTRAP, &trap_act, NULL) != 0);
+
+	/* Setup executable region */
+	pgsize = getpagesize();
+	numinsns = pgsize / sizeof(unsigned int);
+	insns = (unsigned int *) mmap(NULL, pgsize, PROT_READ | PROT_WRITE,
+				      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	FAIL_IF(insns == MAP_FAILED);
+
+	/* Write the instruction words */
+	for (i = 1; i < numinsns - 1; i++)
+		insns[i] = PPC_INST_NOP;
+
+	/*
+	 * Set the first instruction as an unconditional trap. If
+	 * the last write to this address succeeds, this should
+	 * get overwritten by a no-op.
+	 */
+	insns[0] = PPC_INST_TRAP;
+
+	/*
+	 * Later, to jump to the executable region, we use a branch
+	 * and link instruction (bctrl) which sets the return address
+	 * automatically in LR. Use that to return back.
+	 */
+	insns[numinsns - 1] = PPC_INST_BLR;
+
+	/* Allocate a pkey that restricts execution */
+	rights = PKEY_DISABLE_EXECUTE;
+	pkey = sys_pkey_alloc(0, rights);
+	FAIL_IF(pkey < 0);
+
+	/*
+	 * Pick the first instruction's address from the executable
+	 * region.
+	 */
+	fault_addr = insns;
+
+	/* The following two cases will avoid SEGV_PKUERR */
+	fault_type = -1;
+	fault_pkey = -1;
+
+	/*
+	 * Read an instruction word from the address when AMR bits
+	 * are not set i.e. the pkey permits both read and write
+	 * access.
+	 *
+	 * This should not generate a fault as having PROT_EXEC
+	 * implies PROT_READ on GNU systems. The pkey currently
+	 * restricts execution only based on the IAMR bits. The
+	 * AMR bits are cleared.
+	 */
+	remaining_faults = 0;
+	FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+	printf("read from %p, pkey permissions are %s\n", fault_addr,
+	       pkey_rights(rights));
+	i = *fault_addr;
+	FAIL_IF(remaining_faults != 0);
+
+	/*
+	 * Write an instruction word to the address when AMR bits
+	 * are not set i.e. the pkey permits both read and write
+	 * access.
+	 *
+	 * This should generate an access fault as having just
+	 * PROT_EXEC also restricts writes. The pkey currently
+	 * restricts execution only based on the IAMR bits. The
+	 * AMR bits are cleared.
+	 */
+	remaining_faults = 1;
+	FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+	printf("write to %p, pkey permissions are %s\n", fault_addr,
+	       pkey_rights(rights));
+	*fault_addr = PPC_INST_TRAP;
+	FAIL_IF(remaining_faults != 0 || fault_code != SEGV_ACCERR);
+
+	/* The following three cases will generate SEGV_PKUERR */
+	rights |= PKEY_DISABLE_ACCESS;
+	fault_type = PKEY_DISABLE_ACCESS;
+	fault_pkey = pkey;
+
+	/*
+	 * Read an instruction word from the address when AMR bits
+	 * are set i.e. the pkey permits neither read nor write
+	 * access.
+	 *
+	 * This should generate a pkey fault based on AMR bits only
+	 * as having PROT_EXEC implicitly allows reads.
+	 */
+	remaining_faults = 1;
+	FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+	pkey_set_rights(pkey, rights);
+	printf("read from %p, pkey permissions are %s\n", fault_addr,
+	       pkey_rights(rights));
+	i = *fault_addr;
+	FAIL_IF(remaining_faults != 0 || fault_code != SEGV_PKUERR);
+
+	/*
+	 * Write an instruction word to the address when AMR bits
+	 * are set i.e. the pkey permits neither read nor write
+	 * access.
+	 *
+	 * This should generate two faults. First, a pkey fault
+	 * based on AMR bits and then an access fault since
+	 * PROT_EXEC does not allow writes.
+	 */
+	remaining_faults = 2;
+	FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+	pkey_set_rights(pkey, rights);
+	printf("write to %p, pkey permissions are %s\n", fault_addr,
+	       pkey_rights(rights));
+	*fault_addr = PPC_INST_NOP;
+	FAIL_IF(remaining_faults != 0 || fault_code != SEGV_ACCERR);
+
+	/* Free the current pkey */
+	sys_pkey_free(pkey);
+
+	rights = 0;
+	do {
+		/*
+		 * Allocate pkeys with all valid combinations of read,
+		 * write and execute restrictions.
+		 */
+		pkey = sys_pkey_alloc(0, rights);
+		FAIL_IF(pkey < 0);
+
+		/*
+		 * Jump to the executable region. AMR bits may or may not
+		 * be set but they should not affect execution.
+		 *
+		 * This should generate pkey faults based on IAMR bits which
+		 * may be set to restrict execution.
+		 *
+		 * The first iteration also checks if the overwrite of the
+		 * first instruction word from a trap to a no-op succeeded.
+		 */
+		fault_pkey = pkey;
+		fault_type = -1;
+		remaining_faults = 0;
+		if (rights & PKEY_DISABLE_EXECUTE) {
+			fault_type = PKEY_DISABLE_EXECUTE;
+			remaining_faults = 1;
+		}
+
+		FAIL_IF(sys_pkey_mprotect(insns, pgsize, PROT_EXEC, pkey) != 0);
+		printf("execute at %p, pkey permissions are %s\n", fault_addr,
+		       pkey_rights(rights));
+		asm volatile("mtctr	%0; bctrl" : : "r"(insns));
+		FAIL_IF(remaining_faults != 0);
+		if (rights & PKEY_DISABLE_EXECUTE)
+			FAIL_IF(fault_code != SEGV_PKUERR);
+
+		/* Free the current pkey */
+		sys_pkey_free(pkey);
+
+		/* Find next valid combination of pkey rights */
+		rights = next_pkey_rights(rights);
+	} while (rights);
+
+	/* Cleanup */
+	munmap((void *) insns, pgsize);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test, "pkey_exec_prot");
+}
diff --git a/tools/testing/selftests/powerpc/mm/pkey_siginfo.c b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c
new file mode 100644
index 000000000000..e89a164c686b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/pkey_siginfo.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2020, Sandipan Das, IBM Corp.
+ *
+ * Test if the signal information reports the correct memory protection
+ * key upon getting a key access violation fault for a page that was
+ * attempted to be protected by two different keys from two competing
+ * threads at the same time.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <signal.h>
+
+#include <unistd.h>
+#include <pthread.h>
+#include <sys/mman.h>
+
+#include "pkeys.h"
+
+#define PPC_INST_NOP	0x60000000
+#define PPC_INST_BLR	0x4e800020
+#define PROT_RWX	(PROT_READ | PROT_WRITE | PROT_EXEC)
+
+#define NUM_ITERATIONS	1000000
+
+static volatile sig_atomic_t perm_pkey, rest_pkey;
+static volatile sig_atomic_t rights, fault_count;
+static volatile unsigned int *volatile fault_addr;
+static pthread_barrier_t iteration_barrier;
+
+static void segv_handler(int signum, siginfo_t *sinfo, void *ctx)
+{
+	void *pgstart;
+	size_t pgsize;
+	int pkey;
+
+	pkey = siginfo_pkey(sinfo);
+
+	/* Check if this fault originated from a pkey access violation */
+	if (sinfo->si_code != SEGV_PKUERR) {
+		sigsafe_err("got a fault for an unexpected reason\n");
+		_exit(1);
+	}
+
+	/* Check if this fault originated from the expected address */
+	if (sinfo->si_addr != (void *) fault_addr) {
+		sigsafe_err("got a fault for an unexpected address\n");
+		_exit(1);
+	}
+
+	/* Check if this fault originated from the restrictive pkey */
+	if (pkey != rest_pkey) {
+		sigsafe_err("got a fault for an unexpected pkey\n");
+		_exit(1);
+	}
+
+	/* Check if too many faults have occurred for the same iteration */
+	if (fault_count > 0) {
+		sigsafe_err("got too many faults for the same address\n");
+		_exit(1);
+	}
+
+	pgsize = getpagesize();
+	pgstart = (void *) ((unsigned long) fault_addr & ~(pgsize - 1));
+
+	/*
+	 * If the current fault occurred due to lack of execute rights,
+	 * reassociate the page with the exec-only pkey since execute
+	 * rights cannot be changed directly for the faulting pkey as
+	 * IAMR is inaccessible from userspace.
+	 *
+	 * Otherwise, if the current fault occurred due to lack of
+	 * read-write rights, change the AMR permission bits for the
+	 * pkey.
+	 *
+	 * This will let the test continue.
+	 */
+	if (rights == PKEY_DISABLE_EXECUTE &&
+	    mprotect(pgstart, pgsize, PROT_EXEC))
+		_exit(1);
+	else
+		pkey_set_rights(pkey, PKEY_UNRESTRICTED);
+
+	fault_count++;
+}
+
+struct region {
+	unsigned long rights;
+	unsigned int *base;
+	size_t size;
+};
+
+static void *protect(void *p)
+{
+	unsigned long rights;
+	unsigned int *base;
+	size_t size;
+	int tid, i;
+
+	tid = gettid();
+	base = ((struct region *) p)->base;
+	size = ((struct region *) p)->size;
+	FAIL_IF_EXIT(!base);
+
+	/* No read, write and execute restrictions */
+	rights = 0;
+
+	printf("tid %d, pkey permissions are %s\n", tid, pkey_rights(rights));
+
+	/* Allocate the permissive pkey */
+	perm_pkey = sys_pkey_alloc(0, rights);
+	FAIL_IF_EXIT(perm_pkey < 0);
+
+	/*
+	 * Repeatedly try to protect the common region with a permissive
+	 * pkey
+	 */
+	for (i = 0; i < NUM_ITERATIONS; i++) {
+		/*
+		 * Wait until the other thread has finished allocating the
+		 * restrictive pkey or until the next iteration has begun
+		 */
+		pthread_barrier_wait(&iteration_barrier);
+
+		/* Try to associate the permissive pkey with the region */
+		FAIL_IF_EXIT(sys_pkey_mprotect(base, size, PROT_RWX,
+					       perm_pkey));
+	}
+
+	/* Free the permissive pkey */
+	sys_pkey_free(perm_pkey);
+
+	return NULL;
+}
+
+static void *protect_access(void *p)
+{
+	size_t size, numinsns;
+	unsigned int *base;
+	int tid, i;
+
+	tid = gettid();
+	base = ((struct region *) p)->base;
+	size = ((struct region *) p)->size;
+	rights = ((struct region *) p)->rights;
+	numinsns = size / sizeof(base[0]);
+	FAIL_IF_EXIT(!base);
+
+	/* Allocate the restrictive pkey */
+	rest_pkey = sys_pkey_alloc(0, rights);
+	FAIL_IF_EXIT(rest_pkey < 0);
+
+	printf("tid %d, pkey permissions are %s\n", tid, pkey_rights(rights));
+	printf("tid %d, %s randomly in range [%p, %p]\n", tid,
+	       (rights == PKEY_DISABLE_EXECUTE) ? "execute" :
+	       (rights == PKEY_DISABLE_WRITE)  ? "write" : "read",
+	       base, base + numinsns);
+
+	/*
+	 * Repeatedly try to protect the common region with a restrictive
+	 * pkey and read, write or execute from it
+	 */
+	for (i = 0; i < NUM_ITERATIONS; i++) {
+		/*
+		 * Wait until the other thread has finished allocating the
+		 * permissive pkey or until the next iteration has begun
+		 */
+		pthread_barrier_wait(&iteration_barrier);
+
+		/* Try to associate the restrictive pkey with the region */
+		FAIL_IF_EXIT(sys_pkey_mprotect(base, size, PROT_RWX,
+					       rest_pkey));
+
+		/* Choose a random instruction word address from the region */
+		fault_addr = base + (rand() % numinsns);
+		fault_count = 0;
+
+		switch (rights) {
+		/* Read protection test */
+		case PKEY_DISABLE_ACCESS:
+			/*
+			 * Read an instruction word from the region and
+			 * verify if it has not been overwritten to
+			 * something unexpected
+			 */
+			FAIL_IF_EXIT(*fault_addr != PPC_INST_NOP &&
+				     *fault_addr != PPC_INST_BLR);
+			break;
+
+		/* Write protection test */
+		case PKEY_DISABLE_WRITE:
+			/*
+			 * Write an instruction word to the region and
+			 * verify if the overwrite has succeeded
+			 */
+			*fault_addr = PPC_INST_BLR;
+			FAIL_IF_EXIT(*fault_addr != PPC_INST_BLR);
+			break;
+
+		/* Execute protection test */
+		case PKEY_DISABLE_EXECUTE:
+			/* Jump to the region and execute instructions */
+			asm volatile(
+				"mtctr	%0; bctrl"
+				: : "r"(fault_addr) : "ctr", "lr");
+			break;
+		}
+
+		/*
+		 * Restore the restrictions originally imposed by the
+		 * restrictive pkey as the signal handler would have
+		 * cleared out the corresponding AMR bits
+		 */
+		pkey_set_rights(rest_pkey, rights);
+	}
+
+	/* Free restrictive pkey */
+	sys_pkey_free(rest_pkey);
+
+	return NULL;
+}
+
+static void reset_pkeys(unsigned long rights)
+{
+	int pkeys[NR_PKEYS], i;
+
+	/* Exhaustively allocate all available pkeys */
+	for (i = 0; i < NR_PKEYS; i++)
+		pkeys[i] = sys_pkey_alloc(0, rights);
+
+	/* Free all allocated pkeys */
+	for (i = 0; i < NR_PKEYS; i++)
+		sys_pkey_free(pkeys[i]);
+}
+
+static int test(void)
+{
+	pthread_t prot_thread, pacc_thread;
+	struct sigaction act;
+	pthread_attr_t attr;
+	size_t numinsns;
+	struct region r;
+	int ret, i;
+
+	srand(time(NULL));
+	ret = pkeys_unsupported();
+	if (ret)
+		return ret;
+
+	/* Allocate the region */
+	r.size = getpagesize();
+	r.base = mmap(NULL, r.size, PROT_RWX,
+		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	FAIL_IF(r.base == MAP_FAILED);
+
+	/*
+	 * Fill the region with no-ops with a branch at the end
+	 * for returning to the caller
+	 */
+	numinsns = r.size / sizeof(r.base[0]);
+	for (i = 0; i < numinsns - 1; i++)
+		r.base[i] = PPC_INST_NOP;
+	r.base[i] = PPC_INST_BLR;
+
+	/* Setup SIGSEGV handler */
+	act.sa_handler = 0;
+	act.sa_sigaction = segv_handler;
+	FAIL_IF(sigprocmask(SIG_SETMASK, 0, &act.sa_mask) != 0);
+	act.sa_flags = SA_SIGINFO;
+	act.sa_restorer = 0;
+	FAIL_IF(sigaction(SIGSEGV, &act, NULL) != 0);
+
+	/*
+	 * For these tests, the parent process should clear all bits of
+	 * AMR and IAMR, i.e. impose no restrictions, for all available
+	 * pkeys. This will be the base for the initial AMR and IAMR
+	 * values for all the test thread pairs.
+	 *
+	 * If the AMR and IAMR bits of all available pkeys are cleared
+	 * before running the tests and a fault is generated when
+	 * attempting to read, write or execute instructions from a
+	 * pkey protected region, the pkey responsible for this must be
+	 * the one from the protect-and-access thread since the other
+	 * one is fully permissive. Despite that, if the pkey reported
+	 * by siginfo is not the restrictive pkey, then there must be a
+	 * kernel bug.
+	 */
+	reset_pkeys(0);
+
+	/* Setup barrier for protect and protect-and-access threads */
+	FAIL_IF(pthread_attr_init(&attr) != 0);
+	FAIL_IF(pthread_barrier_init(&iteration_barrier, NULL, 2) != 0);
+
+	/* Setup and start protect and protect-and-read threads */
+	puts("starting thread pair (protect, protect-and-read)");
+	r.rights = PKEY_DISABLE_ACCESS;
+	FAIL_IF(pthread_create(&prot_thread, &attr, &protect, &r) != 0);
+	FAIL_IF(pthread_create(&pacc_thread, &attr, &protect_access, &r) != 0);
+	FAIL_IF(pthread_join(prot_thread, NULL) != 0);
+	FAIL_IF(pthread_join(pacc_thread, NULL) != 0);
+
+	/* Setup and start protect and protect-and-write threads */
+	puts("starting thread pair (protect, protect-and-write)");
+	r.rights = PKEY_DISABLE_WRITE;
+	FAIL_IF(pthread_create(&prot_thread, &attr, &protect, &r) != 0);
+	FAIL_IF(pthread_create(&pacc_thread, &attr, &protect_access, &r) != 0);
+	FAIL_IF(pthread_join(prot_thread, NULL) != 0);
+	FAIL_IF(pthread_join(pacc_thread, NULL) != 0);
+
+	/* Setup and start protect and protect-and-execute threads */
+	puts("starting thread pair (protect, protect-and-execute)");
+	r.rights = PKEY_DISABLE_EXECUTE;
+	FAIL_IF(pthread_create(&prot_thread, &attr, &protect, &r) != 0);
+	FAIL_IF(pthread_create(&pacc_thread, &attr, &protect_access, &r) != 0);
+	FAIL_IF(pthread_join(prot_thread, NULL) != 0);
+	FAIL_IF(pthread_join(pacc_thread, NULL) != 0);
+
+	/* Cleanup */
+	FAIL_IF(pthread_attr_destroy(&attr) != 0);
+	FAIL_IF(pthread_barrier_destroy(&iteration_barrier) != 0);
+	munmap(r.base, r.size);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test, "pkey_siginfo");
+}
diff --git a/tools/testing/selftests/powerpc/mm/prot_sao.c b/tools/testing/selftests/powerpc/mm/prot_sao.c
new file mode 100644
index 000000000000..30b71b1d78d5
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/prot_sao.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2016, Michael Ellerman, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include <asm/cputable.h>
+
+#include "utils.h"
+
+#define SIZE (64 * 1024)
+
+int test_prot_sao(void)
+{
+	char *p;
+
+	/*
+	 * SAO was introduced in 2.06 and removed in 3.1. It's disabled in
+	 * guests/LPARs by default, so also skip if we are running in a guest.
+	 */
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06) ||
+		have_hwcap2(PPC_FEATURE2_ARCH_3_1) ||
+		access("/proc/device-tree/rtas/ibm,hypertas-functions", F_OK) == 0);
+
+	/*
+	 * Ensure we can ask for PROT_SAO.
+	 * We can't really verify that it does the right thing, but at least we
+	 * confirm the kernel will accept it.
+	 */
+	p = mmap(NULL, SIZE, PROT_READ | PROT_WRITE | PROT_SAO,
+		 MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	FAIL_IF(p == MAP_FAILED);
+
+	/* Write to the mapping, to at least cause a fault */
+	memset(p, 0xaa, SIZE);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_prot_sao, "prot-sao");
+}
diff --git a/tools/testing/selftests/powerpc/mm/segv_errors.c b/tools/testing/selftests/powerpc/mm/segv_errors.c
new file mode 100644
index 000000000000..06ae76ee3ea1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/segv_errors.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2017 John Sperbeck
+ *
+ * Test that an access to a mapped but inaccessible area causes a SEGV and
+ * reports si_code == SEGV_ACCERR.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/mman.h>
+#include <assert.h>
+#include <ucontext.h>
+
+#include "utils.h"
+
+static bool faulted;
+static int si_code;
+
+static void segv_handler(int n, siginfo_t *info, void *ctxt_v)
+{
+	ucontext_t *ctxt = (ucontext_t *)ctxt_v;
+	struct pt_regs *regs = ctxt->uc_mcontext.regs;
+
+	faulted = true;
+	si_code = info->si_code;
+	regs->nip += 4;
+}
+
+int test_segv_errors(void)
+{
+	struct sigaction act = {
+		.sa_sigaction = segv_handler,
+		.sa_flags = SA_SIGINFO,
+	};
+	char c, *p = NULL;
+
+	p = mmap(NULL, getpagesize(), 0, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+	FAIL_IF(p == MAP_FAILED);
+
+	FAIL_IF(sigaction(SIGSEGV, &act, NULL) != 0);
+
+	faulted = false;
+	si_code = 0;
+
+	/*
+	 * We just need a compiler barrier, but mb() works and has the nice
+	 * property of being easy to spot in the disassembly.
+	 */
+	mb();
+	c = *p;
+	mb();
+
+	FAIL_IF(!faulted);
+	FAIL_IF(si_code != SEGV_ACCERR);
+
+	faulted = false;
+	si_code = 0;
+
+	mb();
+	*p = c;
+	mb();
+
+	FAIL_IF(!faulted);
+	FAIL_IF(si_code != SEGV_ACCERR);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_segv_errors, "segv_errors");
+}
diff --git a/tools/testing/selftests/powerpc/mm/settings b/tools/testing/selftests/powerpc/mm/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c b/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
new file mode 100644
index 000000000000..9c0d343d7137
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that loads/stores expand the stack segment, or trigger a SEGV, in
+ * various conditions.
+ *
+ * Based on test code by Tom Lane.
+ */
+
+#undef NDEBUG
+#include <assert.h>
+
+#include <err.h>
+#include <errno.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/resource.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#define _KB (1024)
+#define _MB (1024 * 1024)
+
+volatile char *stack_top_ptr;
+volatile unsigned long stack_top_sp;
+volatile char c;
+
+enum access_type {
+	LOAD,
+	STORE,
+};
+
+/*
+ * Consume stack until the stack pointer is below @target_sp, then do an access
+ * (load or store) at offset @delta from either the base of the stack or the
+ * current stack pointer.
+ */
+__attribute__ ((noinline))
+int consume_stack(unsigned long target_sp, unsigned long stack_high, int delta, enum access_type type)
+{
+	unsigned long target;
+	char stack_cur;
+
+	if ((unsigned long)&stack_cur > target_sp)
+		return consume_stack(target_sp, stack_high, delta, type);
+	else {
+		// We don't really need this, but without it GCC might not
+		// generate a recursive call above.
+		stack_top_ptr = &stack_cur;
+
+#ifdef __powerpc__
+		asm volatile ("mr %[sp], %%r1" : [sp] "=r" (stack_top_sp));
+#else
+		asm volatile ("mov %%rsp, %[sp]" : [sp] "=r" (stack_top_sp));
+#endif
+		target = stack_high - delta + 1;
+		volatile char *p = (char *)target;
+
+		if (type == STORE)
+			*p = c;
+		else
+			c = *p;
+
+		// Do something to prevent the stack frame being popped prior to
+		// our access above.
+		getpid();
+	}
+
+	return 0;
+}
+
+static int search_proc_maps(char *needle, unsigned long *low, unsigned long *high)
+{
+	unsigned long start, end;
+	static char buf[4096];
+	char name[128];
+	FILE *f;
+	int rc;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!f) {
+		perror("fopen");
+		return -1;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		rc = sscanf(buf, "%lx-%lx %*c%*c%*c%*c %*x %*d:%*d %*d %127s\n",
+			    &start, &end, name);
+		if (rc == 2)
+			continue;
+
+		if (rc != 3) {
+			printf("sscanf errored\n");
+			rc = -1;
+			break;
+		}
+
+		if (strstr(name, needle)) {
+			*low = start;
+			*high = end - 1;
+			rc = 0;
+			break;
+		}
+	}
+
+	fclose(f);
+
+	return rc;
+}
+
+int child(unsigned int stack_used, int delta, enum access_type type)
+{
+	unsigned long low, stack_high;
+
+	assert(search_proc_maps("[stack]", &low, &stack_high) == 0);
+
+	assert(consume_stack(stack_high - stack_used, stack_high, delta, type) == 0);
+
+	printf("Access OK: %s delta %-7d used size 0x%06x stack high 0x%lx top_ptr %p top sp 0x%lx actual used 0x%lx\n",
+	       type == LOAD ? "load" : "store", delta, stack_used, stack_high,
+	       stack_top_ptr, stack_top_sp, stack_high - stack_top_sp + 1);
+
+	return 0;
+}
+
+static int test_one(unsigned int stack_used, int delta, enum access_type type)
+{
+	pid_t pid;
+	int rc;
+
+	pid = fork();
+	if (pid == 0)
+		exit(child(stack_used, delta, type));
+
+	assert(waitpid(pid, &rc, 0) != -1);
+
+	if (WIFEXITED(rc) && WEXITSTATUS(rc) == 0)
+		return 0;
+
+	// We don't expect a non-zero exit that's not a signal
+	assert(!WIFEXITED(rc));
+
+	printf("Faulted:   %s delta %-7d used size 0x%06x signal %d\n",
+	       type == LOAD ? "load" : "store", delta, stack_used,
+	       WTERMSIG(rc));
+
+	return 1;
+}
+
+// This is fairly arbitrary but is well below any of the targets below,
+// so that the delta between the stack pointer and the target is large.
+#define DEFAULT_SIZE	(32 * _KB)
+
+static void test_one_type(enum access_type type, unsigned long page_size, unsigned long rlim_cur)
+{
+	unsigned long delta;
+
+	// We should be able to access anywhere within the rlimit
+	for (delta = page_size; delta <= rlim_cur; delta += page_size)
+		assert(test_one(DEFAULT_SIZE, delta, type) == 0);
+
+	assert(test_one(DEFAULT_SIZE, rlim_cur, type) == 0);
+
+	// But if we go past the rlimit it should fail
+	assert(test_one(DEFAULT_SIZE, rlim_cur + 1, type) != 0);
+}
+
+static int test(void)
+{
+	unsigned long page_size;
+	struct rlimit rlimit;
+
+	page_size = getpagesize();
+	getrlimit(RLIMIT_STACK, &rlimit);
+	printf("Stack rlimit is 0x%llx\n", (unsigned long long)rlimit.rlim_cur);
+
+	printf("Testing loads ...\n");
+	test_one_type(LOAD, page_size, rlimit.rlim_cur);
+	printf("Testing stores ...\n");
+	test_one_type(STORE, page_size, rlimit.rlim_cur);
+
+	printf("All OK\n");
+
+	return 0;
+}
+
+#ifdef __powerpc__
+#include "utils.h"
+
+int main(void)
+{
+	return test_harness(test, "stack_expansion_ldst");
+}
+#else
+int main(void)
+{
+	return test();
+}
+#endif
diff --git a/tools/testing/selftests/powerpc/mm/stack_expansion_signal.c b/tools/testing/selftests/powerpc/mm/stack_expansion_signal.c
new file mode 100644
index 000000000000..c8b32a29e274
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/stack_expansion_signal.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that signal delivery is able to expand the stack segment without
+ * triggering a SEGV.
+ *
+ * Based on test code by Tom Lane.
+ */
+
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "../pmu/lib.h"
+#include "utils.h"
+
+#define _KB (1024)
+#define _MB (1024 * 1024)
+
+static char *stack_base_ptr;
+static char *stack_top_ptr;
+
+static volatile sig_atomic_t sig_occurred = 0;
+
+static void sigusr1_handler(int signal_arg)
+{
+	sig_occurred = 1;
+}
+
+static int consume_stack(unsigned int stack_size, union pipe write_pipe)
+{
+	char stack_cur;
+
+	if ((stack_base_ptr - &stack_cur) < stack_size)
+		return consume_stack(stack_size, write_pipe);
+	else {
+		stack_top_ptr = &stack_cur;
+
+		FAIL_IF(notify_parent(write_pipe));
+
+		while (!sig_occurred)
+			barrier();
+	}
+
+	return 0;
+}
+
+static int child(unsigned int stack_size, union pipe write_pipe)
+{
+	struct sigaction act;
+	char stack_base;
+
+	act.sa_handler = sigusr1_handler;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = 0;
+	if (sigaction(SIGUSR1, &act, NULL) < 0)
+		err(1, "sigaction");
+
+	stack_base_ptr = (char *) (((size_t) &stack_base + 65535) & ~65535UL);
+
+	FAIL_IF(consume_stack(stack_size, write_pipe));
+
+	printf("size 0x%06x: OK, stack base %p top %p (%zx used)\n",
+		stack_size, stack_base_ptr, stack_top_ptr,
+		stack_base_ptr - stack_top_ptr);
+
+	return 0;
+}
+
+static int test_one_size(unsigned int stack_size)
+{
+	union pipe read_pipe, write_pipe;
+	pid_t pid;
+
+	FAIL_IF(pipe(read_pipe.fds) == -1);
+	FAIL_IF(pipe(write_pipe.fds) == -1);
+
+	pid = fork();
+	if (pid == 0) {
+		close(read_pipe.read_fd);
+		close(write_pipe.write_fd);
+		exit(child(stack_size, read_pipe));
+	}
+
+	close(read_pipe.write_fd);
+	close(write_pipe.read_fd);
+	FAIL_IF(sync_with_child(read_pipe, write_pipe));
+
+	kill(pid, SIGUSR1);
+
+	FAIL_IF(wait_for_child(pid));
+
+	close(read_pipe.read_fd);
+	close(write_pipe.write_fd);
+
+	return 0;
+}
+
+int test(void)
+{
+	unsigned int i, size;
+
+	// Test with used stack from 1MB - 64K to 1MB + 64K
+	// Increment by 64 to get more coverage of odd sizes
+	for (i = 0; i < (128 * _KB); i += 64) {
+		size = i + (1 * _MB) - (64 * _KB);
+		FAIL_IF(test_one_size(size));
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test, "stack_expansion_signal");
+}
diff --git a/tools/testing/selftests/powerpc/mm/stress_code_patching.sh b/tools/testing/selftests/powerpc/mm/stress_code_patching.sh
new file mode 100755
index 000000000000..e454509659f6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/stress_code_patching.sh
@@ -0,0 +1,49 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+TIMEOUT=30
+
+DEBUFS_DIR=`cat /proc/mounts | grep debugfs | awk '{print $2}'`
+if [ ! -e "$DEBUFS_DIR" ]
+then
+	echo "debugfs not found, skipping" 1>&2
+	exit 4
+fi
+
+if [ ! -e "$DEBUFS_DIR/tracing/current_tracer" ]
+then
+	echo "Tracing files not found, skipping" 1>&2
+	exit 4
+fi
+
+
+echo "Testing for spurious faults when mapping kernel memory..."
+
+if grep -q "FUNCTION TRACING IS CORRUPTED" "$DEBUFS_DIR/tracing/trace"
+then
+	echo "FAILED: Ftrace already dead. Probably due to a spurious fault" 1>&2
+	exit 1
+fi
+
+dmesg -C
+START_TIME=`date +%s`
+END_TIME=`expr $START_TIME + $TIMEOUT`
+while [ `date +%s` -lt $END_TIME ]
+do
+	echo function > $DEBUFS_DIR/tracing/current_tracer
+	echo nop > $DEBUFS_DIR/tracing/current_tracer
+	if dmesg | grep -q 'ftrace bug'
+	then
+		break
+	fi
+done
+
+echo nop > $DEBUFS_DIR/tracing/current_tracer
+if dmesg | grep -q 'ftrace bug'
+then
+	echo "FAILED: Mapping kernel memory causes spurious faults" 1>&2
+	exit 1
+else
+	echo "OK: Mapping kernel memory does not cause spurious faults"
+	exit 0
+fi
diff --git a/tools/testing/selftests/powerpc/mm/subpage_prot.c b/tools/testing/selftests/powerpc/mm/subpage_prot.c
index 440180ff8089..8cf9fd5fed1c 100644
--- a/tools/testing/selftests/powerpc/mm/subpage_prot.c
+++ b/tools/testing/selftests/powerpc/mm/subpage_prot.c
@@ -73,7 +73,7 @@ static inline void check_faulted(void *addr, long page, long subpage, int write)
 		want_fault |= (subpage == ((page + 1) % 16));
 
 	if (faulted != want_fault) {
-		printf("Failed at 0x%p (p=%ld,sp=%ld,w=%d), want=%s, got=%s !\n",
+		printf("Failed at %p (p=%ld,sp=%ld,w=%d), want=%s, got=%s !\n",
 		       addr, page, subpage, write,
 		       want_fault ? "fault" : "pass",
 		       faulted ? "fault" : "pass");
@@ -82,7 +82,7 @@ static inline void check_faulted(void *addr, long page, long subpage, int write)
 
 	if (faulted) {
 		if (dar != addr) {
-			printf("Fault expected at 0x%p and happened at 0x%p !\n",
+			printf("Fault expected at %p and happened at %p !\n",
 			       addr, dar);
 		}
 		faulted = 0;
@@ -135,6 +135,16 @@ static int run_test(void *addr, unsigned long size)
 	return 0;
 }
 
+static int syscall_available(void)
+{
+	int rc;
+
+	errno = 0;
+	rc = syscall(__NR_subpage_prot, 0, 0, 0);
+
+	return rc == 0 || (errno != ENOENT && errno != ENOSYS);
+}
+
 int test_anon(void)
 {
 	unsigned long align;
@@ -145,6 +155,8 @@ int test_anon(void)
 	void *mallocblock;
 	unsigned long mallocsize;
 
+	SKIP_IF(!syscall_available());
+
 	if (getpagesize() != 0x10000) {
 		fprintf(stderr, "Kernel page size must be 64K!\n");
 		return 1;
@@ -162,7 +174,7 @@ int test_anon(void)
 
 	mallocblock = (void *)align;
 
-	printf("allocated malloc block of 0x%lx bytes at 0x%p\n",
+	printf("allocated malloc block of 0x%lx bytes at %p\n",
 	       mallocsize, mallocblock);
 
 	printf("testing malloc block...\n");
@@ -180,6 +192,8 @@ int test_file(void)
 	off_t filesize;
 	int fd;
 
+	SKIP_IF(!syscall_available());
+
 	fd = open(file_name, O_RDWR);
 	if (fd == -1) {
 		perror("failed to open file");
@@ -197,8 +211,8 @@ int test_file(void)
 		perror("failed to map file");
 		return 1;
 	}
-	printf("allocated %s for 0x%lx bytes at 0x%p\n",
-	       file_name, filesize, fileblock);
+	printf("allocated %s for 0x%llx bytes at %p\n",
+	       file_name, (long long)filesize, fileblock);
 
 	printf("testing file map...\n");
 
@@ -207,14 +221,16 @@ int test_file(void)
 
 int main(int argc, char *argv[])
 {
-	test_harness(test_anon, "subpage_prot_anon");
+	int rc;
+
+	rc = test_harness(test_anon, "subpage_prot_anon");
+	if (rc)
+		return rc;
 
 	if (argc > 1)
 		file_name = argv[1];
 	else
 		file_name = "tempfile";
 
-	test_harness(test_file, "subpage_prot_file");
-
-	return 0;
+	return test_harness(test_file, "subpage_prot_file");
 }
diff --git a/tools/testing/selftests/powerpc/mm/tlbie_test.c b/tools/testing/selftests/powerpc/mm/tlbie_test.c
new file mode 100644
index 000000000000..35f0098399cc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/tlbie_test.c
@@ -0,0 +1,733 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2019, Nick Piggin, Gautham R. Shenoy, Aneesh Kumar K.V, IBM Corp.
+ */
+
+/*
+ *
+ * Test tlbie/mtpidr race. We have 4 threads doing flush/load/compare/store
+ * sequence in a loop. The same threads also rung a context switch task
+ * that does sched_yield() in loop.
+ *
+ * The snapshot thread mark the mmap area PROT_READ in between, make a copy
+ * and copy it back to the original area. This helps us to detect if any
+ * store continued to happen after we marked the memory PROT_READ.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <linux/futex.h>
+#include <unistd.h>
+#include <asm/unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sched.h>
+#include <time.h>
+#include <stdarg.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sys/prctl.h>
+
+static inline void dcbf(volatile unsigned int *addr)
+{
+	__asm__ __volatile__ ("dcbf %y0; sync" : : "Z"(*(unsigned char *)addr) : "memory");
+}
+
+static void err_msg(char *msg)
+{
+
+	time_t now;
+	time(&now);
+	printf("=================================\n");
+	printf("    Error: %s\n", msg);
+	printf("    %s", ctime(&now));
+	printf("=================================\n");
+	exit(1);
+}
+
+static char *map1;
+static char *map2;
+static pid_t rim_process_pid;
+
+/*
+ * A "rim-sequence" is defined to be the sequence of the following
+ * operations performed on a memory word:
+ *	1) FLUSH the contents of that word.
+ *	2) LOAD the contents of that word.
+ *	3) COMPARE the contents of that word with the content that was
+ *	           previously stored at that word
+ *	4) STORE new content into that word.
+ *
+ * The threads in this test that perform the rim-sequence are termed
+ * as rim_threads.
+ */
+
+/*
+ * A "corruption" is defined to be the failed COMPARE operation in a
+ * rim-sequence.
+ *
+ * A rim_thread that detects a corruption informs about it to all the
+ * other rim_threads, and the mem_snapshot thread.
+ */
+static volatile unsigned int corruption_found;
+
+/*
+ * This defines the maximum number of rim_threads in this test.
+ *
+ * The THREAD_ID_BITS denote the number of bits required
+ * to represent the thread_ids [0..MAX_THREADS - 1].
+ * We are being a bit paranoid here and set it to 8 bits,
+ * though 6 bits suffice.
+ *
+ */
+#define MAX_THREADS 		64
+#define THREAD_ID_BITS		8
+#define THREAD_ID_MASK		((1 << THREAD_ID_BITS) - 1)
+static unsigned int rim_thread_ids[MAX_THREADS];
+static pthread_t rim_threads[MAX_THREADS];
+
+
+/*
+ * Each rim_thread works on an exclusive "chunk" of size
+ * RIM_CHUNK_SIZE.
+ *
+ * The ith rim_thread works on the ith chunk.
+ *
+ * The ith chunk begins at
+ * map1 + (i * RIM_CHUNK_SIZE)
+ */
+#define RIM_CHUNK_SIZE  	1024
+#define BITS_PER_BYTE 		8
+#define WORD_SIZE     		(sizeof(unsigned int))
+#define WORD_BITS		(WORD_SIZE * BITS_PER_BYTE)
+#define WORDS_PER_CHUNK		(RIM_CHUNK_SIZE/WORD_SIZE)
+
+static inline char *compute_chunk_start_addr(unsigned int thread_id)
+{
+	char *chunk_start;
+
+	chunk_start = (char *)((unsigned long)map1 +
+			       (thread_id * RIM_CHUNK_SIZE));
+
+	return chunk_start;
+}
+
+/*
+ * The "word-offset" of a word-aligned address inside a chunk, is
+ * defined to be the number of words that precede the address in that
+ * chunk.
+ *
+ * WORD_OFFSET_BITS denote the number of bits required to represent
+ * the word-offsets of all the word-aligned addresses of a chunk.
+ */
+#define WORD_OFFSET_BITS	(__builtin_ctz(WORDS_PER_CHUNK))
+#define WORD_OFFSET_MASK	((1 << WORD_OFFSET_BITS) - 1)
+
+static inline unsigned int compute_word_offset(char *start, unsigned int *addr)
+{
+	unsigned int delta_bytes, ret;
+	delta_bytes = (unsigned long)addr - (unsigned long)start;
+
+	ret = delta_bytes/WORD_SIZE;
+
+	return ret;
+}
+
+/*
+ * A "sweep" is defined to be the sequential execution of the
+ * rim-sequence by a rim_thread on its chunk one word at a time,
+ * starting from the first word of its chunk and ending with the last
+ * word of its chunk.
+ *
+ * Each sweep of a rim_thread is uniquely identified by a sweep_id.
+ * SWEEP_ID_BITS denote the number of bits required to represent
+ * the sweep_ids of rim_threads.
+ *
+ * As to why SWEEP_ID_BITS are computed as a function of THREAD_ID_BITS,
+ * WORD_OFFSET_BITS, and WORD_BITS, see the "store-pattern" below.
+ */
+#define SWEEP_ID_BITS		(WORD_BITS - (THREAD_ID_BITS + WORD_OFFSET_BITS))
+#define SWEEP_ID_MASK		((1 << SWEEP_ID_BITS) - 1)
+
+/*
+ * A "store-pattern" is the word-pattern that is stored into a word
+ * location in the 4)STORE step of the rim-sequence.
+ *
+ * In the store-pattern, we shall encode:
+ *
+ *      - The thread-id of the rim_thread performing the store
+ *        (The most significant THREAD_ID_BITS)
+ *
+ *      - The word-offset of the address into which the store is being
+ *        performed (The next WORD_OFFSET_BITS)
+ *
+ *      - The sweep_id of the current sweep in which the store is
+ *        being performed. (The lower SWEEP_ID_BITS)
+ *
+ * Store Pattern: 32 bits
+ * |------------------|--------------------|---------------------------------|
+ * |    Thread id     |  Word offset       |         sweep_id                |
+ * |------------------|--------------------|---------------------------------|
+ *    THREAD_ID_BITS     WORD_OFFSET_BITS          SWEEP_ID_BITS
+ *
+ * In the store pattern, the (Thread-id + Word-offset) uniquely identify the
+ * address to which the store is being performed i.e,
+ *    address == map1 +
+ *              (Thread-id * RIM_CHUNK_SIZE) + (Word-offset * WORD_SIZE)
+ *
+ * And the sweep_id in the store pattern identifies the time when the
+ * store was performed by the rim_thread.
+ *
+ * We shall use this property in the 3)COMPARE step of the
+ * rim-sequence.
+ */
+#define SWEEP_ID_SHIFT	0
+#define WORD_OFFSET_SHIFT	(SWEEP_ID_BITS)
+#define THREAD_ID_SHIFT		(WORD_OFFSET_BITS + SWEEP_ID_BITS)
+
+/*
+ * Compute the store pattern for a given thread with id @tid, at
+ * location @addr in the sweep identified by @sweep_id
+ */
+static inline unsigned int compute_store_pattern(unsigned int tid,
+						 unsigned int *addr,
+						 unsigned int sweep_id)
+{
+	unsigned int ret = 0;
+	char *start = compute_chunk_start_addr(tid);
+	unsigned int word_offset = compute_word_offset(start, addr);
+
+	ret += (tid & THREAD_ID_MASK) << THREAD_ID_SHIFT;
+	ret += (word_offset & WORD_OFFSET_MASK) << WORD_OFFSET_SHIFT;
+	ret += (sweep_id & SWEEP_ID_MASK) << SWEEP_ID_SHIFT;
+	return ret;
+}
+
+/* Extract the thread-id from the given store-pattern */
+static inline unsigned int extract_tid(unsigned int pattern)
+{
+	unsigned int ret;
+
+	ret = (pattern >> THREAD_ID_SHIFT) & THREAD_ID_MASK;
+	return ret;
+}
+
+/* Extract the word-offset from the given store-pattern */
+static inline unsigned int extract_word_offset(unsigned int pattern)
+{
+	unsigned int ret;
+
+	ret = (pattern >> WORD_OFFSET_SHIFT) & WORD_OFFSET_MASK;
+
+	return ret;
+}
+
+/* Extract the sweep-id from the given store-pattern */
+static inline unsigned int extract_sweep_id(unsigned int pattern)
+
+{
+	unsigned int ret;
+
+	ret = (pattern >> SWEEP_ID_SHIFT) & SWEEP_ID_MASK;
+
+	return ret;
+}
+
+/************************************************************
+ *                                                          *
+ *          Logging the output of the verification          *
+ *                                                          *
+ ************************************************************/
+#define LOGDIR_NAME_SIZE 100
+static char logdir[LOGDIR_NAME_SIZE];
+
+static FILE *fp[MAX_THREADS];
+static const char logfilename[] ="Thread-%02d-Chunk";
+
+static inline void start_verification_log(unsigned int tid,
+					  unsigned int *addr,
+					  unsigned int cur_sweep_id,
+					  unsigned int prev_sweep_id)
+{
+	FILE *f;
+	char logfile[30];
+	char path[LOGDIR_NAME_SIZE + 30];
+	char separator[2] = "/";
+	char *chunk_start = compute_chunk_start_addr(tid);
+	unsigned int size = RIM_CHUNK_SIZE;
+
+	sprintf(logfile, logfilename, tid);
+	strcpy(path, logdir);
+	strcat(path, separator);
+	strcat(path, logfile);
+	f = fopen(path, "w");
+
+	if (!f) {
+		err_msg("Unable to create logfile\n");
+	}
+
+	fp[tid] = f;
+
+	fprintf(f, "----------------------------------------------------------\n");
+	fprintf(f, "PID                = %d\n", rim_process_pid);
+	fprintf(f, "Thread id          = %02d\n", tid);
+	fprintf(f, "Chunk Start Addr   = 0x%016lx\n", (unsigned long)chunk_start);
+	fprintf(f, "Chunk Size         = %d\n", size);
+	fprintf(f, "Next Store Addr    = 0x%016lx\n", (unsigned long)addr);
+	fprintf(f, "Current sweep-id   = 0x%08x\n", cur_sweep_id);
+	fprintf(f, "Previous sweep-id  = 0x%08x\n", prev_sweep_id);
+	fprintf(f, "----------------------------------------------------------\n");
+}
+
+static inline void log_anamoly(unsigned int tid, unsigned int *addr,
+			       unsigned int expected, unsigned int observed)
+{
+	FILE *f = fp[tid];
+
+	fprintf(f, "Thread %02d: Addr 0x%lx: Expected 0x%x, Observed 0x%x\n",
+	        tid, (unsigned long)addr, expected, observed);
+	fprintf(f, "Thread %02d: Expected Thread id   = %02d\n", tid, extract_tid(expected));
+	fprintf(f, "Thread %02d: Observed Thread id   = %02d\n", tid, extract_tid(observed));
+	fprintf(f, "Thread %02d: Expected Word offset = %03d\n", tid, extract_word_offset(expected));
+	fprintf(f, "Thread %02d: Observed Word offset = %03d\n", tid, extract_word_offset(observed));
+	fprintf(f, "Thread %02d: Expected sweep-id    = 0x%x\n", tid, extract_sweep_id(expected));
+	fprintf(f, "Thread %02d: Observed sweep-id    = 0x%x\n", tid, extract_sweep_id(observed));
+	fprintf(f, "----------------------------------------------------------\n");
+}
+
+static inline void end_verification_log(unsigned int tid, unsigned nr_anamolies)
+{
+	FILE *f = fp[tid];
+	char logfile[30];
+	char path[LOGDIR_NAME_SIZE + 30];
+	char separator[] = "/";
+
+	fclose(f);
+
+	sprintf(logfile, logfilename, tid);
+	strcpy(path, logdir);
+	strcat(path, separator);
+	strcat(path, logfile);
+
+	if (nr_anamolies == 0) {
+		remove(path);
+		return;
+	}
+
+	printf("Thread %02d chunk has %d corrupted words. For details check %s\n",
+		tid, nr_anamolies, path);
+}
+
+/*
+ * When a COMPARE step of a rim-sequence fails, the rim_thread informs
+ * everyone else via the shared_memory pointed to by
+ * corruption_found variable. On seeing this, every thread verifies the
+ * content of its chunk as follows.
+ *
+ * Suppose a thread identified with @tid was about to store (but not
+ * yet stored) to @next_store_addr in its current sweep identified
+ * @cur_sweep_id. Let @prev_sweep_id indicate the previous sweep_id.
+ *
+ * This implies that for all the addresses @addr < @next_store_addr,
+ * Thread @tid has already performed a store as part of its current
+ * sweep. Hence we expect the content of such @addr to be:
+ *    |-------------------------------------------------|
+ *    | tid   | word_offset(addr) |    cur_sweep_id     |
+ *    |-------------------------------------------------|
+ *
+ * Since Thread @tid is yet to perform stores on address
+ * @next_store_addr and above, we expect the content of such an
+ * address @addr to be:
+ *    |-------------------------------------------------|
+ *    | tid   | word_offset(addr) |    prev_sweep_id    |
+ *    |-------------------------------------------------|
+ *
+ * The verifier function @verify_chunk does this verification and logs
+ * any anamolies that it finds.
+ */
+static void verify_chunk(unsigned int tid, unsigned int *next_store_addr,
+		  unsigned int cur_sweep_id,
+		  unsigned int prev_sweep_id)
+{
+	unsigned int *iter_ptr;
+	unsigned int size = RIM_CHUNK_SIZE;
+	unsigned int expected;
+	unsigned int observed;
+	char *chunk_start = compute_chunk_start_addr(tid);
+
+	int nr_anamolies = 0;
+
+	start_verification_log(tid, next_store_addr,
+			       cur_sweep_id, prev_sweep_id);
+
+	for (iter_ptr = (unsigned int *)chunk_start;
+	     (unsigned long)iter_ptr < (unsigned long)chunk_start + size;
+	     iter_ptr++) {
+		unsigned int expected_sweep_id;
+
+		if (iter_ptr < next_store_addr) {
+			expected_sweep_id = cur_sweep_id;
+		} else {
+			expected_sweep_id = prev_sweep_id;
+		}
+
+		expected = compute_store_pattern(tid, iter_ptr, expected_sweep_id);
+
+		dcbf((volatile unsigned int*)iter_ptr); //Flush before reading
+		observed = *iter_ptr;
+
+	        if (observed != expected) {
+			nr_anamolies++;
+			log_anamoly(tid, iter_ptr, expected, observed);
+		}
+	}
+
+	end_verification_log(tid, nr_anamolies);
+}
+
+static void set_pthread_cpu(pthread_t th, int cpu)
+{
+	cpu_set_t run_cpu_mask;
+	struct sched_param param;
+
+	CPU_ZERO(&run_cpu_mask);
+	CPU_SET(cpu, &run_cpu_mask);
+	pthread_setaffinity_np(th, sizeof(cpu_set_t), &run_cpu_mask);
+
+	param.sched_priority = 1;
+	if (0 && sched_setscheduler(0, SCHED_FIFO, &param) == -1) {
+		/* haven't reproduced with this setting, it kills random preemption which may be a factor */
+		fprintf(stderr, "could not set SCHED_FIFO, run as root?\n");
+	}
+}
+
+static void set_mycpu(int cpu)
+{
+	cpu_set_t run_cpu_mask;
+	struct sched_param param;
+
+	CPU_ZERO(&run_cpu_mask);
+	CPU_SET(cpu, &run_cpu_mask);
+	sched_setaffinity(0, sizeof(cpu_set_t), &run_cpu_mask);
+
+	param.sched_priority = 1;
+	if (0 && sched_setscheduler(0, SCHED_FIFO, &param) == -1) {
+		fprintf(stderr, "could not set SCHED_FIFO, run as root?\n");
+	}
+}
+
+static volatile int segv_wait;
+
+static void segv_handler(int signo, siginfo_t *info, void *extra)
+{
+	while (segv_wait) {
+		sched_yield();
+	}
+
+}
+
+static void set_segv_handler(void)
+{
+	struct sigaction sa;
+
+	sa.sa_flags = SA_SIGINFO;
+	sa.sa_sigaction = segv_handler;
+
+	if (sigaction(SIGSEGV, &sa, NULL) == -1) {
+		perror("sigaction");
+		exit(EXIT_FAILURE);
+	}
+}
+
+int timeout = 0;
+/*
+ * This function is executed by every rim_thread.
+ *
+ * This function performs sweeps over the exclusive chunks of the
+ * rim_threads executing the rim-sequence one word at a time.
+ */
+static void *rim_fn(void *arg)
+{
+	unsigned int tid = *((unsigned int *)arg);
+
+	int size = RIM_CHUNK_SIZE;
+	char *chunk_start = compute_chunk_start_addr(tid);
+
+	unsigned int prev_sweep_id;
+	unsigned int cur_sweep_id = 0;
+
+	/* word access */
+	unsigned int pattern = cur_sweep_id;
+	unsigned int *pattern_ptr = &pattern;
+	unsigned int *w_ptr, read_data;
+
+	set_segv_handler();
+
+	/*
+	 * Let us initialize the chunk:
+	 *
+	 * Each word-aligned address addr in the chunk,
+	 * is initialized to :
+	 *    |-------------------------------------------------|
+	 *    | tid   | word_offset(addr) |         0           |
+	 *    |-------------------------------------------------|
+	 */
+	for (w_ptr = (unsigned int *)chunk_start;
+	     (unsigned long)w_ptr < (unsigned long)(chunk_start) + size;
+	     w_ptr++) {
+
+		*pattern_ptr = compute_store_pattern(tid, w_ptr, cur_sweep_id);
+		*w_ptr = *pattern_ptr;
+	}
+
+	while (!corruption_found && !timeout) {
+		prev_sweep_id = cur_sweep_id;
+		cur_sweep_id = cur_sweep_id + 1;
+
+		for (w_ptr = (unsigned int *)chunk_start;
+		     (unsigned long)w_ptr < (unsigned long)(chunk_start) + size;
+		     w_ptr++)  {
+			unsigned int old_pattern;
+
+			/*
+			 * Compute the pattern that we would have
+			 * stored at this location in the previous
+			 * sweep.
+			 */
+			old_pattern = compute_store_pattern(tid, w_ptr, prev_sweep_id);
+
+			/*
+			 * FLUSH:Ensure that we flush the contents of
+			 *       the cache before loading
+			 */
+			dcbf((volatile unsigned int*)w_ptr); //Flush
+
+			/* LOAD: Read the value */
+			read_data = *w_ptr; //Load
+
+			/*
+			 * COMPARE: Is it the same as what we had stored
+			 *          in the previous sweep ? It better be!
+			 */
+			if (read_data != old_pattern) {
+				/* No it isn't! Tell everyone */
+				corruption_found = 1;
+			}
+
+			/*
+			 * Before performing a store, let us check if
+			 * any rim_thread has found a corruption.
+			 */
+			if (corruption_found || timeout) {
+				/*
+				 * Yes. Someone (including us!) has found
+				 * a corruption :(
+				 *
+				 * Let us verify that our chunk is
+				 * correct.
+				 */
+				/* But first, let us allow the dust to settle down! */
+				verify_chunk(tid, w_ptr, cur_sweep_id, prev_sweep_id);
+
+				return 0;
+			}
+
+			/*
+			 * Compute the new pattern that we are going
+			 * to write to this location
+			 */
+			*pattern_ptr = compute_store_pattern(tid, w_ptr, cur_sweep_id);
+
+			/*
+			 * STORE: Now let us write this pattern into
+			 *        the location
+			 */
+			*w_ptr = *pattern_ptr;
+		}
+	}
+
+	return NULL;
+}
+
+
+static unsigned long start_cpu = 0;
+static unsigned long nrthreads = 4;
+
+static pthread_t mem_snapshot_thread;
+
+static void *mem_snapshot_fn(void *arg)
+{
+	int page_size = getpagesize();
+	size_t size = page_size;
+	void *tmp = malloc(size);
+
+	while (!corruption_found && !timeout) {
+		/* Stop memory migration once corruption is found */
+		segv_wait = 1;
+
+		mprotect(map1, size, PROT_READ);
+
+		/*
+		 * Load from the working alias (map1). Loading from map2
+		 * also fails.
+		 */
+		memcpy(tmp, map1, size);
+
+		/*
+		 * Stores must go via map2 which has write permissions, but
+		 * the corrupted data tends to be seen in the snapshot buffer,
+		 * so corruption does not appear to be introduced at the
+		 * copy-back via map2 alias here.
+		 */
+		memcpy(map2, tmp, size);
+		/*
+		 * Before releasing other threads, must ensure the copy
+		 * back to
+		 */
+		asm volatile("sync" ::: "memory");
+		mprotect(map1, size, PROT_READ|PROT_WRITE);
+		asm volatile("sync" ::: "memory");
+		segv_wait = 0;
+
+		usleep(1); /* This value makes a big difference */
+	}
+
+	return 0;
+}
+
+void alrm_sighandler(int sig)
+{
+	timeout = 1;
+}
+
+int main(int argc, char *argv[])
+{
+	int c;
+	int page_size = getpagesize();
+	time_t now;
+	int i, dir_error;
+	pthread_attr_t attr;
+	key_t shm_key = (key_t) getpid();
+	int shmid, run_time = 20 * 60;
+	struct sigaction sa_alrm;
+
+	snprintf(logdir, LOGDIR_NAME_SIZE,
+		 "/tmp/logdir-%u", (unsigned int)getpid());
+	while ((c = getopt(argc, argv, "r:hn:l:t:")) != -1) {
+		switch(c) {
+		case 'r':
+			start_cpu = strtoul(optarg, NULL, 10);
+			break;
+		case 'h':
+			printf("%s [-r <start_cpu>] [-n <nrthreads>] [-l <logdir>] [-t <timeout>]\n", argv[0]);
+			exit(0);
+			break;
+		case 'n':
+			nrthreads = strtoul(optarg, NULL, 10);
+			break;
+		case 'l':
+			strncpy(logdir, optarg, LOGDIR_NAME_SIZE - 1);
+			break;
+		case 't':
+			run_time = strtoul(optarg, NULL, 10);
+			break;
+		default:
+			printf("invalid option\n");
+			exit(0);
+			break;
+		}
+	}
+
+	if (nrthreads > MAX_THREADS)
+		nrthreads = MAX_THREADS;
+
+	shmid = shmget(shm_key, page_size, IPC_CREAT|0666);
+	if (shmid < 0) {
+		err_msg("Failed shmget\n");
+	}
+
+	map1 = shmat(shmid, NULL, 0);
+	if (map1 == (void *) -1) {
+		err_msg("Failed shmat");
+	}
+
+	map2 = shmat(shmid, NULL, 0);
+	if (map2 == (void *) -1) {
+		err_msg("Failed shmat");
+	}
+
+	dir_error = mkdir(logdir, 0755);
+
+	if (dir_error) {
+		err_msg("Failed mkdir");
+	}
+
+	printf("start_cpu list:%lu\n", start_cpu);
+	printf("number of worker threads:%lu + 1 snapshot thread\n", nrthreads);
+	printf("Allocated address:0x%016lx + secondary map:0x%016lx\n", (unsigned long)map1, (unsigned long)map2);
+	printf("logdir at : %s\n", logdir);
+	printf("Timeout: %d seconds\n", run_time);
+
+	time(&now);
+	printf("=================================\n");
+	printf("     Starting Test\n");
+	printf("     %s", ctime(&now));
+	printf("=================================\n");
+
+	for (i = 0; i < nrthreads; i++) {
+		if (1 && !fork()) {
+			prctl(PR_SET_PDEATHSIG, SIGKILL);
+			set_mycpu(start_cpu + i);
+			for (;;)
+				sched_yield();
+			exit(0);
+		}
+	}
+
+
+	sa_alrm.sa_handler = &alrm_sighandler;
+	sigemptyset(&sa_alrm.sa_mask);
+	sa_alrm.sa_flags = 0;
+
+	if (sigaction(SIGALRM, &sa_alrm, 0) == -1) {
+		err_msg("Failed signal handler registration\n");
+	}
+
+	alarm(run_time);
+
+	pthread_attr_init(&attr);
+	for (i = 0; i < nrthreads; i++) {
+		rim_thread_ids[i] = i;
+		pthread_create(&rim_threads[i], &attr, rim_fn, &rim_thread_ids[i]);
+		set_pthread_cpu(rim_threads[i], start_cpu + i);
+	}
+
+	pthread_create(&mem_snapshot_thread, &attr, mem_snapshot_fn, map1);
+	set_pthread_cpu(mem_snapshot_thread, start_cpu + i);
+
+
+	pthread_join(mem_snapshot_thread, NULL);
+	for (i = 0; i < nrthreads; i++) {
+		pthread_join(rim_threads[i], NULL);
+	}
+
+	if (!timeout) {
+		time(&now);
+		printf("=================================\n");
+		printf("      Data Corruption Detected\n");
+		printf("      %s", ctime(&now));
+		printf("      See logfiles in %s\n", logdir);
+		printf("=================================\n");
+		return 1;
+	}
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/mm/wild_bctr.c b/tools/testing/selftests/powerpc/mm/wild_bctr.c
new file mode 100644
index 000000000000..f2fa101c5a6a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/mm/wild_bctr.c
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2018, Michael Ellerman, IBM Corp.
+ *
+ * Test that an out-of-bounds branch to counter behaves as expected.
+ */
+
+#include <setjmp.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+
+#define BAD_NIP	0x788c545a18000000ull
+
+static struct pt_regs signal_regs;
+static jmp_buf setjmp_env;
+
+static void save_regs(ucontext_t *ctxt)
+{
+	struct pt_regs *regs = ctxt->uc_mcontext.regs;
+
+	memcpy(&signal_regs, regs, sizeof(signal_regs));
+}
+
+static void segv_handler(int signum, siginfo_t *info, void *ctxt_v)
+{
+	save_regs(ctxt_v);
+	longjmp(setjmp_env, 1);
+}
+
+static void usr2_handler(int signum, siginfo_t *info, void *ctxt_v)
+{
+	save_regs(ctxt_v);
+}
+
+static int ok(void)
+{
+	printf("Everything is OK in here.\n");
+	return 0;
+}
+
+#define REG_POISON	0x5a5a
+#define POISONED_REG(n)	((((unsigned long)REG_POISON) << 48) | ((n) << 32) | \
+			 (((unsigned long)REG_POISON) << 16) | (n))
+
+static inline void poison_regs(void)
+{
+	#define POISON_REG(n)	\
+	  "lis  " __stringify(n) "," __stringify(REG_POISON) ";" \
+	  "addi " __stringify(n) "," __stringify(n) "," __stringify(n) ";" \
+	  "sldi " __stringify(n) "," __stringify(n) ", 32 ;" \
+	  "oris " __stringify(n) "," __stringify(n) "," __stringify(REG_POISON) ";" \
+	  "addi " __stringify(n) "," __stringify(n) "," __stringify(n) ";"
+
+	asm (POISON_REG(15)
+	     POISON_REG(16)
+	     POISON_REG(17)
+	     POISON_REG(18)
+	     POISON_REG(19)
+	     POISON_REG(20)
+	     POISON_REG(21)
+	     POISON_REG(22)
+	     POISON_REG(23)
+	     POISON_REG(24)
+	     POISON_REG(25)
+	     POISON_REG(26)
+	     POISON_REG(27)
+	     POISON_REG(28)
+	     POISON_REG(29)
+	     : // inputs
+	     : // outputs
+	     : "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25",
+	       "26", "27", "28", "29"
+	);
+	#undef POISON_REG
+}
+
+static int check_regs(void)
+{
+	unsigned long i;
+
+	for (i = 15; i <= 29; i++)
+		FAIL_IF(signal_regs.gpr[i] != POISONED_REG(i));
+
+	printf("Regs OK\n");
+	return 0;
+}
+
+static void dump_regs(void)
+{
+	for (int i = 0; i < 32; i += 4) {
+		printf("r%02d 0x%016lx  r%02d 0x%016lx  " \
+		       "r%02d 0x%016lx  r%02d 0x%016lx\n",
+		       i, signal_regs.gpr[i],
+		       i+1, signal_regs.gpr[i+1],
+		       i+2, signal_regs.gpr[i+2],
+		       i+3, signal_regs.gpr[i+3]);
+	}
+}
+
+#ifdef _CALL_AIXDESC
+struct opd {
+	unsigned long ip;
+	unsigned long toc;
+	unsigned long env;
+};
+static struct opd bad_opd = {
+	.ip = BAD_NIP,
+};
+#define BAD_FUNC (&bad_opd)
+#else
+#define BAD_FUNC BAD_NIP
+#endif
+
+int test_wild_bctr(void)
+{
+	int (*func_ptr)(void);
+	struct sigaction segv = {
+		.sa_sigaction = segv_handler,
+		.sa_flags = SA_SIGINFO
+	};
+	struct sigaction usr2 = {
+		.sa_sigaction = usr2_handler,
+		.sa_flags = SA_SIGINFO
+	};
+
+	FAIL_IF(sigaction(SIGSEGV, &segv, NULL));
+	FAIL_IF(sigaction(SIGUSR2, &usr2, NULL));
+
+	bzero(&signal_regs, sizeof(signal_regs));
+
+	if (setjmp(setjmp_env) == 0) {
+		func_ptr = ok;
+		func_ptr();
+
+		kill(getpid(), SIGUSR2);
+		printf("Regs before:\n");
+		dump_regs();
+		bzero(&signal_regs, sizeof(signal_regs));
+
+		poison_regs();
+
+		func_ptr = (int (*)(void))BAD_FUNC;
+		func_ptr();
+
+		FAIL_IF(1); /* we didn't segv? */
+	}
+
+	FAIL_IF(signal_regs.nip != BAD_NIP);
+
+	printf("All good - took SEGV as expected branching to 0x%llx\n", BAD_NIP);
+
+	dump_regs();
+	FAIL_IF(check_regs());
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_wild_bctr, "wild_bctr");
+}
diff --git a/tools/testing/selftests/powerpc/nx-gzip/.gitignore b/tools/testing/selftests/powerpc/nx-gzip/.gitignore
new file mode 100644
index 000000000000..886d522d52df
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+gunz_test
+gzfht_test
diff --git a/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules b/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules
new file mode 100644
index 000000000000..5a7118495cb3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/99-nx-gzip.rules
@@ -0,0 +1 @@
+SUBSYSTEM=="nxgzip", KERNEL=="nx-gzip", MODE="0666"
diff --git a/tools/testing/selftests/powerpc/nx-gzip/Makefile b/tools/testing/selftests/powerpc/nx-gzip/Makefile
new file mode 100644
index 000000000000..480d8ba94cf7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/Makefile
@@ -0,0 +1,9 @@
+TEST_GEN_FILES := gzfht_test gunz_test
+TEST_PROGS := nx-gzip-test.sh
+
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS = -O3 -m64 -I./include -I../include
+
+$(TEST_GEN_FILES): gzip_vas.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/nx-gzip/README b/tools/testing/selftests/powerpc/nx-gzip/README
new file mode 100644
index 000000000000..9809dbaa1905
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/README
@@ -0,0 +1,45 @@
+Test the nx-gzip function:
+=========================
+
+Verify that following device exists:
+  /dev/crypto/nx-gzip
+If you get a permission error run as sudo or set the device permissions:
+   sudo chmod go+rw /dev/crypto/nx-gzip
+However, chmod may not survive across boots. You may create a udev file such
+as:
+   /etc/udev/rules.d/99-nx-gzip.rules
+
+
+To manually build and run:
+$ gcc -O3 -I./include -o gzfht_test gzfht_test.c gzip_vas.c
+$ gcc -O3 -I./include -o gunz_test gunz_test.c gzip_vas.c
+
+
+Compress any file using Fixed Huffman mode. Output will have a .nx.gz suffix:
+$ ./gzfht_test gzip_vas.c
+file gzip_vas.c read, 6413 bytes
+compressed 6413 to 3124 bytes total, crc32 checksum = abd15e8a
+
+
+Uncompress the previous output. Output will have a .nx.gunzip suffix:
+./gunz_test gzip_vas.c.nx.gz
+gzHeader FLG 0
+00 00 00 00 04 03
+gzHeader MTIME, XFL, OS ignored
+computed checksum abd15e8a isize 0000190d
+stored   checksum abd15e8a isize 0000190d
+decomp is complete: fclose
+
+
+Compare two files:
+$ sha1sum gzip_vas.c.nx.gz.nx.gunzip gzip_vas.c
+bf43e3c0c3651f5f22b6f9784cd9b1eeab4120b6  gzip_vas.c.nx.gz.nx.gunzip
+bf43e3c0c3651f5f22b6f9784cd9b1eeab4120b6  gzip_vas.c
+
+
+Note that the code here are intended for testing the nx-gzip hardware function.
+They are not intended for demonstrating performance or compression ratio.
+By being simplistic these selftests expect to allocate the entire set of source
+and target pages in the memory so it needs enough memory to work.
+For more information and source code consider using:
+https://github.com/libnxz/power-gzip
diff --git a/tools/testing/selftests/powerpc/nx-gzip/gunz_test.c b/tools/testing/selftests/powerpc/nx-gzip/gunz_test.c
new file mode 100644
index 000000000000..7c23d3dd7d6d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/gunz_test.c
@@ -0,0 +1,1028 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/* P9 gunzip sample code for demonstrating the P9 NX hardware
+ * interface.  Not intended for productive uses or for performance or
+ * compression ratio measurements.  Note also that /dev/crypto/gzip,
+ * VAS and skiboot support are required
+ *
+ * Copyright 2020 IBM Corp.
+ *
+ * Author: Bulent Abali <abali@us.ibm.com>
+ *
+ * https://github.com/libnxz/power-gzip for zlib api and other utils
+ * Definitions of acronyms used here.  See
+ * P9 NX Gzip Accelerator User's Manual for details:
+ * https://github.com/libnxz/power-gzip/blob/develop/doc/power_nx_gzip_um.pdf
+ *
+ * adler/crc: 32 bit checksums appended to stream tail
+ * ce:       completion extension
+ * cpb:      coprocessor parameter block (metadata)
+ * crb:      coprocessor request block (command)
+ * csb:      coprocessor status block (status)
+ * dht:      dynamic huffman table
+ * dde:      data descriptor element (address, length)
+ * ddl:      list of ddes
+ * dh/fh:    dynamic and fixed huffman types
+ * fc:       coprocessor function code
+ * histlen:  history/dictionary length
+ * history:  sliding window of up to 32KB of data
+ * lzcount:  Deflate LZ symbol counts
+ * rembytecnt: remaining byte count
+ * sfbt:     source final block type; last block's type during decomp
+ * spbc:     source processed byte count
+ * subc:     source unprocessed bit count
+ * tebc:     target ending bit count; valid bits in the last byte
+ * tpbc:     target processed byte count
+ * vas:      virtual accelerator switch; the user mode interface
+ */
+
+#define _ISOC11_SOURCE	// For aligned_alloc()
+#define _DEFAULT_SOURCE	// For endian.h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <endian.h>
+#include <bits/endian.h>
+#include <sys/ioctl.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include "nxu.h"
+#include "nx.h"
+#include "crb.h"
+
+int nx_dbg;
+FILE *nx_gzip_log;
+
+#define NX_MIN(X, Y) (((X) < (Y))?(X):(Y))
+#define NX_MAX(X, Y) (((X) > (Y))?(X):(Y))
+
+#define GETINPC(X) fgetc(X)
+#define FNAME_MAX 1024
+
+/* fifo queue management */
+#define fifo_used_bytes(used) (used)
+#define fifo_free_bytes(used, len) ((len)-(used))
+/* amount of free bytes in the first and last parts */
+#define fifo_free_first_bytes(cur, used, len)  ((((cur)+(used)) <= (len)) \
+						  ? (len)-((cur)+(used)) : 0)
+#define fifo_free_last_bytes(cur, used, len)   ((((cur)+(used)) <= (len)) \
+						  ? (cur) : (len)-(used))
+/* amount of used bytes in the first and last parts */
+#define fifo_used_first_bytes(cur, used, len)  ((((cur)+(used)) <= (len)) \
+						  ? (used) : (len)-(cur))
+#define fifo_used_last_bytes(cur, used, len)   ((((cur)+(used)) <= (len)) \
+						  ? 0 : ((used)+(cur))-(len))
+/* first and last free parts start here */
+#define fifo_free_first_offset(cur, used)      ((cur)+(used))
+#define fifo_free_last_offset(cur, used, len)  \
+					   fifo_used_last_bytes(cur, used, len)
+/* first and last used parts start here */
+#define fifo_used_first_offset(cur)            (cur)
+#define fifo_used_last_offset(cur)             (0)
+
+const int fifo_in_len = 1<<24;
+const int fifo_out_len = 1<<24;
+const int page_sz = 1<<16;
+const int line_sz = 1<<7;
+const int window_max = 1<<15;
+
+/*
+ * Adds an (address, len) pair to the list of ddes (ddl) and updates
+ * the base dde.  ddl[0] is the only dde in a direct dde which
+ * contains a single (addr,len) pair.  For more pairs, ddl[0] becomes
+ * the indirect (base) dde that points to a list of direct ddes.
+ * See Section 6.4 of the NX-gzip user manual for DDE description.
+ * Addr=NULL, len=0 clears the ddl[0].  Returns the total number of
+ * bytes in ddl.  Caller is responsible for allocting the array of
+ * nx_dde_t *ddl.  If N addresses are required in the scatter-gather
+ * list, the ddl array must have N+1 entries minimum.
+ */
+static inline uint32_t nx_append_dde(struct nx_dde_t *ddl, void *addr,
+					uint32_t len)
+{
+	uint32_t ddecnt;
+	uint32_t bytes;
+
+	if (addr == NULL && len == 0) {
+		clearp_dde(ddl);
+		return 0;
+	}
+
+	NXPRT(fprintf(stderr, "%d: %s addr %p len %x\n", __LINE__, addr,
+			__func__, len));
+
+	/* Number of ddes in the dde list ; == 0 when it is a direct dde */
+	ddecnt = getpnn(ddl, dde_count);
+	bytes = getp32(ddl, ddebc);
+
+	if (ddecnt == 0 && bytes == 0) {
+		/* First dde is unused; make it a direct dde */
+		bytes = len;
+		putp32(ddl, ddebc, bytes);
+		putp64(ddl, ddead, (uint64_t) addr);
+	} else if (ddecnt == 0) {
+		/* Converting direct to indirect dde
+		 * ddl[0] becomes head dde of ddl
+		 * copy direct to indirect first.
+		 */
+		ddl[1] = ddl[0];
+
+		/* Add the new dde next */
+		clear_dde(ddl[2]);
+		put32(ddl[2], ddebc, len);
+		put64(ddl[2], ddead, (uint64_t) addr);
+
+		/* Ddl head points to 2 direct ddes */
+		ddecnt = 2;
+		putpnn(ddl, dde_count, ddecnt);
+		bytes = bytes + len;
+		putp32(ddl, ddebc, bytes);
+		/* Pointer to the first direct dde */
+		putp64(ddl, ddead, (uint64_t) &ddl[1]);
+	} else {
+		/* Append a dde to an existing indirect ddl */
+		++ddecnt;
+		clear_dde(ddl[ddecnt]);
+		put64(ddl[ddecnt], ddead, (uint64_t) addr);
+		put32(ddl[ddecnt], ddebc, len);
+
+		putpnn(ddl, dde_count, ddecnt);
+		bytes = bytes + len;
+		putp32(ddl, ddebc, bytes); /* byte sum of all dde */
+	}
+	return bytes;
+}
+
+/*
+ * Touch specified number of pages represented in number bytes
+ * beginning from the first buffer in a dde list.
+ * Do not touch the pages past buf_sz-th byte's page.
+ *
+ * Set buf_sz = 0 to touch all pages described by the ddep.
+ */
+static int nx_touch_pages_dde(struct nx_dde_t *ddep, long buf_sz, long page_sz,
+				int wr)
+{
+	uint32_t indirect_count;
+	uint32_t buf_len;
+	long total;
+	uint64_t buf_addr;
+	struct nx_dde_t *dde_list;
+	int i;
+
+	assert(!!ddep);
+
+	indirect_count = getpnn(ddep, dde_count);
+
+	NXPRT(fprintf(stderr, "%s dde_count %d request len ", __func__,
+			indirect_count));
+	NXPRT(fprintf(stderr, "0x%lx\n", buf_sz));
+
+	if (indirect_count == 0) {
+		/* Direct dde */
+		buf_len = getp32(ddep, ddebc);
+		buf_addr = getp64(ddep, ddead);
+
+		NXPRT(fprintf(stderr, "touch direct ddebc 0x%x ddead %p\n",
+				buf_len, (void *)buf_addr));
+
+		if (buf_sz == 0)
+			nxu_touch_pages((void *)buf_addr, buf_len, page_sz, wr);
+		else
+			nxu_touch_pages((void *)buf_addr, NX_MIN(buf_len,
+					buf_sz), page_sz, wr);
+
+		return ERR_NX_OK;
+	}
+
+	/* Indirect dde */
+	if (indirect_count > MAX_DDE_COUNT)
+		return ERR_NX_EXCESSIVE_DDE;
+
+	/* First address of the list */
+	dde_list = (struct nx_dde_t *) getp64(ddep, ddead);
+
+	if (buf_sz == 0)
+		buf_sz = getp32(ddep, ddebc);
+
+	total = 0;
+	for (i = 0; i < indirect_count; i++) {
+		buf_len = get32(dde_list[i], ddebc);
+		buf_addr = get64(dde_list[i], ddead);
+		total += buf_len;
+
+		NXPRT(fprintf(stderr, "touch loop len 0x%x ddead %p total ",
+				buf_len, (void *)buf_addr));
+		NXPRT(fprintf(stderr, "0x%lx\n", total));
+
+		/* Touching fewer pages than encoded in the ddebc */
+		if (total > buf_sz) {
+			buf_len = NX_MIN(buf_len, total - buf_sz);
+			nxu_touch_pages((void *)buf_addr, buf_len, page_sz, wr);
+			NXPRT(fprintf(stderr, "touch loop break len 0x%x ",
+				      buf_len));
+			NXPRT(fprintf(stderr, "ddead %p\n", (void *)buf_addr));
+			break;
+		}
+		nxu_touch_pages((void *)buf_addr, buf_len, page_sz, wr);
+	}
+	return ERR_NX_OK;
+}
+
+/*
+ * Src and dst buffers are supplied in scatter gather lists.
+ * NX function code and other parameters supplied in cmdp.
+ */
+static int nx_submit_job(struct nx_dde_t *src, struct nx_dde_t *dst,
+			 struct nx_gzip_crb_cpb_t *cmdp, void *handle)
+{
+	uint64_t csbaddr;
+
+	memset((void *)&cmdp->crb.csb, 0, sizeof(cmdp->crb.csb));
+
+	cmdp->crb.source_dde = *src;
+	cmdp->crb.target_dde = *dst;
+
+	/* Status, output byte count in tpbc */
+	csbaddr = ((uint64_t) &cmdp->crb.csb) & csb_address_mask;
+	put64(cmdp->crb, csb_address, csbaddr);
+
+	/* NX reports input bytes in spbc; cleared */
+	cmdp->cpb.out_spbc_comp_wrap = 0;
+	cmdp->cpb.out_spbc_comp_with_count = 0;
+	cmdp->cpb.out_spbc_decomp = 0;
+
+	/* Clear output */
+	put32(cmdp->cpb, out_crc, INIT_CRC);
+	put32(cmdp->cpb, out_adler, INIT_ADLER);
+
+	/* Submit the crb, the job descriptor, to the accelerator. */
+	return nxu_submit_job(cmdp, handle);
+}
+
+int decompress_file(int argc, char **argv, void *devhandle)
+{
+	FILE *inpf = NULL;
+	FILE *outf = NULL;
+
+	int c, expect, i, cc, rc = 0;
+	char gzfname[FNAME_MAX];
+
+	/* Queuing, file ops, byte counting */
+	char *fifo_in, *fifo_out;
+	int used_in, cur_in, used_out, cur_out, read_sz, n;
+	int first_free, last_free, first_used, last_used;
+	int first_offset, last_offset;
+	int write_sz, free_space, source_sz;
+	int source_sz_estimate, target_sz_estimate;
+	uint64_t last_comp_ratio = 0; /* 1000 max */
+	uint64_t total_out = 0;
+	int is_final, is_eof;
+
+	/* nx hardware */
+	int sfbt, subc, spbc, tpbc, nx_ce, fc, resuming = 0;
+	int history_len = 0;
+	struct nx_gzip_crb_cpb_t cmd, *cmdp;
+	struct nx_dde_t *ddl_in;
+	struct nx_dde_t dde_in[6] __aligned(128);
+	struct nx_dde_t *ddl_out;
+	struct nx_dde_t dde_out[6] __aligned(128);
+	int pgfault_retries;
+
+	/* when using mmap'ed files */
+	off_t input_file_offset;
+
+	if (argc > 2) {
+		fprintf(stderr, "usage: %s <fname> or stdin\n", argv[0]);
+		fprintf(stderr, "    writes to stdout or <fname>.nx.gunzip\n");
+		return -1;
+	}
+
+	if (argc == 1) {
+		inpf = stdin;
+		outf = stdout;
+	} else if (argc == 2) {
+		char w[1024];
+		char *wp;
+
+		inpf = fopen(argv[1], "r");
+		if (inpf == NULL) {
+			perror(argv[1]);
+			return -1;
+		}
+
+		/* Make a new file name to write to.  Ignoring '.gz' */
+		wp = (NULL != (wp = strrchr(argv[1], '/'))) ? (wp+1) : argv[1];
+		strcpy(w, wp);
+		strcat(w, ".nx.gunzip");
+
+		outf = fopen(w, "w");
+		if (outf == NULL) {
+			perror(w);
+			return -1;
+		}
+	}
+
+	/* Decode the gzip header */
+	c = GETINPC(inpf); expect = 0x1f; /* ID1 */
+	if (c != expect)
+		goto err1;
+
+	c = GETINPC(inpf); expect = 0x8b; /* ID2 */
+	if (c != expect)
+		goto err1;
+
+	c = GETINPC(inpf); expect = 0x08; /* CM */
+	if (c != expect)
+		goto err1;
+
+	int flg = GETINPC(inpf); /* FLG */
+
+	if (flg & 0xE0 || flg & 0x4 || flg == EOF)
+		goto err2;
+
+	fprintf(stderr, "gzHeader FLG %x\n", flg);
+
+	/* Read 6 bytes; ignoring the MTIME, XFL, OS fields in this
+	 * sample code.
+	 */
+	for (i = 0; i < 6; i++) {
+		char tmp[10];
+
+		tmp[i] = GETINPC(inpf);
+		if (tmp[i] == EOF)
+			goto err3;
+		fprintf(stderr, "%02x ", tmp[i]);
+		if (i == 5)
+			fprintf(stderr, "\n");
+	}
+	fprintf(stderr, "gzHeader MTIME, XFL, OS ignored\n");
+
+	/* FNAME */
+	if (flg & 0x8) {
+		int k = 0;
+
+		do {
+			c = GETINPC(inpf);
+			if (c == EOF || k >= FNAME_MAX)
+				goto err3;
+			gzfname[k++] = c;
+		} while (c);
+		fprintf(stderr, "gzHeader FNAME: %s\n", gzfname);
+	}
+
+	/* FHCRC */
+	if (flg & 0x2) {
+		c = GETINPC(inpf);
+		if (c == EOF)
+			goto err3;
+		c = GETINPC(inpf);
+		if (c == EOF)
+			goto err3;
+		fprintf(stderr, "gzHeader FHCRC: ignored\n");
+	}
+
+	used_in = cur_in = used_out = cur_out = 0;
+	is_final = is_eof = 0;
+
+	/* Allocate one page larger to prevent page faults due to NX
+	 * overfetching.
+	 * Either do this (char*)(uintptr_t)aligned_alloc or use
+	 * -std=c11 flag to make the int-to-pointer warning go away.
+	 */
+	assert((fifo_in  = (char *)(uintptr_t)aligned_alloc(line_sz,
+				   fifo_in_len + page_sz)) != NULL);
+	assert((fifo_out = (char *)(uintptr_t)aligned_alloc(line_sz,
+				   fifo_out_len + page_sz + line_sz)) != NULL);
+	/* Leave unused space due to history rounding rules */
+	fifo_out = fifo_out + line_sz;
+	nxu_touch_pages(fifo_out, fifo_out_len, page_sz, 1);
+
+	ddl_in  = &dde_in[0];
+	ddl_out = &dde_out[0];
+	cmdp = &cmd;
+	memset(&cmdp->crb, 0, sizeof(cmdp->crb));
+
+read_state:
+
+	/* Read from .gz file */
+
+	NXPRT(fprintf(stderr, "read_state:\n"));
+
+	if (is_eof != 0)
+		goto write_state;
+
+	/* We read in to fifo_in in two steps: first: read in to from
+	 * cur_in to the end of the buffer.  last: if free space wrapped
+	 * around, read from fifo_in offset 0 to offset cur_in.
+	 */
+
+	/* Reset fifo head to reduce unnecessary wrap arounds */
+	cur_in = (used_in == 0) ? 0 : cur_in;
+
+	/* Free space total is reduced by a gap */
+	free_space = NX_MAX(0, fifo_free_bytes(used_in, fifo_in_len)
+			    - line_sz);
+
+	/* Free space may wrap around as first and last */
+	first_free = fifo_free_first_bytes(cur_in, used_in, fifo_in_len);
+	last_free  = fifo_free_last_bytes(cur_in, used_in, fifo_in_len);
+
+	/* Start offsets of the free memory */
+	first_offset = fifo_free_first_offset(cur_in, used_in);
+	last_offset  = fifo_free_last_offset(cur_in, used_in, fifo_in_len);
+
+	/* Reduce read_sz because of the line_sz gap */
+	read_sz = NX_MIN(free_space, first_free);
+	n = 0;
+	if (read_sz > 0) {
+		/* Read in to offset cur_in + used_in */
+		n = fread(fifo_in + first_offset, 1, read_sz, inpf);
+		used_in = used_in + n;
+		free_space = free_space - n;
+		assert(n <= read_sz);
+		if (n != read_sz) {
+			/* Either EOF or error; exit the read loop */
+			is_eof = 1;
+			goto write_state;
+		}
+	}
+
+	/* If free space wrapped around */
+	if (last_free > 0) {
+		/* Reduce read_sz because of the line_sz gap */
+		read_sz = NX_MIN(free_space, last_free);
+		n = 0;
+		if (read_sz > 0) {
+			n = fread(fifo_in + last_offset, 1, read_sz, inpf);
+			used_in = used_in + n;       /* Increase used space */
+			free_space = free_space - n; /* Decrease free space */
+			assert(n <= read_sz);
+			if (n != read_sz) {
+				/* Either EOF or error; exit the read loop */
+				is_eof = 1;
+				goto write_state;
+			}
+		}
+	}
+
+	/* At this point we have used_in bytes in fifo_in with the
+	 * data head starting at cur_in and possibly wrapping around.
+	 */
+
+write_state:
+
+	/* Write decompressed data to output file */
+
+	NXPRT(fprintf(stderr, "write_state:\n"));
+
+	if (used_out == 0)
+		goto decomp_state;
+
+	/* If fifo_out has data waiting, write it out to the file to
+	 * make free target space for the accelerator used bytes in
+	 * the first and last parts of fifo_out.
+	 */
+
+	first_used = fifo_used_first_bytes(cur_out, used_out, fifo_out_len);
+	last_used  = fifo_used_last_bytes(cur_out, used_out, fifo_out_len);
+
+	write_sz = first_used;
+
+	n = 0;
+	if (write_sz > 0) {
+		n = fwrite(fifo_out + cur_out, 1, write_sz, outf);
+		used_out = used_out - n;
+		/* Move head of the fifo */
+		cur_out = (cur_out + n) % fifo_out_len;
+		assert(n <= write_sz);
+		if (n != write_sz) {
+			fprintf(stderr, "error: write\n");
+			rc = -1;
+			goto err5;
+		}
+	}
+
+	if (last_used > 0) { /* If more data available in the last part */
+		write_sz = last_used; /* Keep it here for later */
+		n = 0;
+		if (write_sz > 0) {
+			n = fwrite(fifo_out, 1, write_sz, outf);
+			used_out = used_out - n;
+			cur_out = (cur_out + n) % fifo_out_len;
+			assert(n <= write_sz);
+			if (n != write_sz) {
+				fprintf(stderr, "error: write\n");
+				rc = -1;
+				goto err5;
+			}
+		}
+	}
+
+decomp_state:
+
+	/* NX decompresses input data */
+
+	NXPRT(fprintf(stderr, "decomp_state:\n"));
+
+	if (is_final)
+		goto finish_state;
+
+	/* Address/len lists */
+	clearp_dde(ddl_in);
+	clearp_dde(ddl_out);
+
+	/* FC, CRC, HistLen, Table 6-6 */
+	if (resuming) {
+		/* Resuming a partially decompressed input.
+		 * The key to resume is supplying the 32KB
+		 * dictionary (history) to NX, which is basically
+		 * the last 32KB of output produced.
+		 */
+		fc = GZIP_FC_DECOMPRESS_RESUME;
+
+		cmdp->cpb.in_crc   = cmdp->cpb.out_crc;
+		cmdp->cpb.in_adler = cmdp->cpb.out_adler;
+
+		/* Round up the history size to quadword.  Section 2.10 */
+		history_len = (history_len + 15) / 16;
+		putnn(cmdp->cpb, in_histlen, history_len);
+		history_len = history_len * 16; /* bytes */
+
+		if (history_len > 0) {
+			/* Chain in the history buffer to the DDE list */
+			if (cur_out >= history_len) {
+				nx_append_dde(ddl_in, fifo_out
+					      + (cur_out - history_len),
+					      history_len);
+			} else {
+				nx_append_dde(ddl_in, fifo_out
+					      + ((fifo_out_len + cur_out)
+					      - history_len),
+					      history_len - cur_out);
+				/* Up to 32KB history wraps around fifo_out */
+				nx_append_dde(ddl_in, fifo_out, cur_out);
+			}
+
+		}
+	} else {
+		/* First decompress job */
+		fc = GZIP_FC_DECOMPRESS;
+
+		history_len = 0;
+		/* Writing 0 clears out subc as well */
+		cmdp->cpb.in_histlen = 0;
+		total_out = 0;
+
+		put32(cmdp->cpb, in_crc, INIT_CRC);
+		put32(cmdp->cpb, in_adler, INIT_ADLER);
+		put32(cmdp->cpb, out_crc, INIT_CRC);
+		put32(cmdp->cpb, out_adler, INIT_ADLER);
+
+		/* Assuming 10% compression ratio initially; use the
+		 * most recently measured compression ratio as a
+		 * heuristic to estimate the input and output
+		 * sizes.  If we give too much input, the target buffer
+		 * overflows and NX cycles are wasted, and then we
+		 * must retry with smaller input size.  1000 is 100%.
+		 */
+		last_comp_ratio = 100UL;
+	}
+	cmdp->crb.gzip_fc = 0;
+	putnn(cmdp->crb, gzip_fc, fc);
+
+	/*
+	 * NX source buffers
+	 */
+	first_used = fifo_used_first_bytes(cur_in, used_in, fifo_in_len);
+	last_used = fifo_used_last_bytes(cur_in, used_in, fifo_in_len);
+
+	if (first_used > 0)
+		nx_append_dde(ddl_in, fifo_in + cur_in, first_used);
+
+	if (last_used > 0)
+		nx_append_dde(ddl_in, fifo_in, last_used);
+
+	/*
+	 * NX target buffers
+	 */
+	first_free = fifo_free_first_bytes(cur_out, used_out, fifo_out_len);
+	last_free = fifo_free_last_bytes(cur_out, used_out, fifo_out_len);
+
+	/* Reduce output free space amount not to overwrite the history */
+	int target_max = NX_MAX(0, fifo_free_bytes(used_out, fifo_out_len)
+				- (1<<16));
+
+	NXPRT(fprintf(stderr, "target_max %d (0x%x)\n", target_max,
+		      target_max));
+
+	first_free = NX_MIN(target_max, first_free);
+	if (first_free > 0) {
+		first_offset = fifo_free_first_offset(cur_out, used_out);
+		nx_append_dde(ddl_out, fifo_out + first_offset, first_free);
+	}
+
+	if (last_free > 0) {
+		last_free = NX_MIN(target_max - first_free, last_free);
+		if (last_free > 0) {
+			last_offset = fifo_free_last_offset(cur_out, used_out,
+							    fifo_out_len);
+			nx_append_dde(ddl_out, fifo_out + last_offset,
+				      last_free);
+		}
+	}
+
+	/* Target buffer size is used to limit the source data size
+	 * based on previous measurements of compression ratio.
+	 */
+
+	/* source_sz includes history */
+	source_sz = getp32(ddl_in, ddebc);
+	assert(source_sz > history_len);
+	source_sz = source_sz - history_len;
+
+	/* Estimating how much source is needed to 3/4 fill a
+	 * target_max size target buffer.  If we overshoot, then NX
+	 * must repeat the job with smaller input and we waste
+	 * bandwidth.  If we undershoot then we use more NX calls than
+	 * necessary.
+	 */
+
+	source_sz_estimate = ((uint64_t)target_max * last_comp_ratio * 3UL)
+				/ 4000;
+
+	if (source_sz_estimate < source_sz) {
+		/* Target might be small, therefore limiting the
+		 * source data.
+		 */
+		source_sz = source_sz_estimate;
+		target_sz_estimate = target_max;
+	} else {
+		/* Source file might be small, therefore limiting target
+		 * touch pages to a smaller value to save processor cycles.
+		 */
+		target_sz_estimate = ((uint64_t)source_sz * 1000UL)
+					/ (last_comp_ratio + 1);
+		target_sz_estimate = NX_MIN(2 * target_sz_estimate,
+					    target_max);
+	}
+
+	source_sz = source_sz + history_len;
+
+	/* Some NX condition codes require submitting the NX job again.
+	 * Kernel doesn't handle NX page faults. Expects user code to
+	 * touch pages.
+	 */
+	pgfault_retries = NX_MAX_FAULTS;
+
+restart_nx:
+
+	putp32(ddl_in, ddebc, source_sz);
+
+	/* Fault in pages */
+	nxu_touch_pages(cmdp, sizeof(struct nx_gzip_crb_cpb_t), page_sz, 1);
+	nx_touch_pages_dde(ddl_in, 0, page_sz, 0);
+	nx_touch_pages_dde(ddl_out, target_sz_estimate, page_sz, 1);
+
+	/* Send job to NX */
+	cc = nx_submit_job(ddl_in, ddl_out, cmdp, devhandle);
+
+	switch (cc) {
+
+	case ERR_NX_AT_FAULT:
+
+		/* We touched the pages ahead of time.  In the most common case
+		 * we shouldn't be here.  But may be some pages were paged out.
+		 * Kernel should have placed the faulting address to fsaddr.
+		 */
+		NXPRT(fprintf(stderr, "ERR_NX_AT_FAULT %p\n",
+			      (void *)cmdp->crb.csb.fsaddr));
+
+		if (pgfault_retries == NX_MAX_FAULTS) {
+			/* Try once with exact number of pages */
+			--pgfault_retries;
+			goto restart_nx;
+		} else if (pgfault_retries > 0) {
+			/* If still faulting try fewer input pages
+			 * assuming memory outage
+			 */
+			if (source_sz > page_sz)
+				source_sz = NX_MAX(source_sz / 2, page_sz);
+			--pgfault_retries;
+			goto restart_nx;
+		} else {
+			fprintf(stderr, "cannot make progress; too many ");
+			fprintf(stderr, "page fault retries cc= %d\n", cc);
+			rc = -1;
+			goto err5;
+		}
+
+	case ERR_NX_DATA_LENGTH:
+
+		NXPRT(fprintf(stderr, "ERR_NX_DATA_LENGTH; "));
+		NXPRT(fprintf(stderr, "stream may have trailing data\n"));
+
+		/* Not an error in the most common case; it just says
+		 * there is trailing data that we must examine.
+		 *
+		 * CC=3 CE(1)=0 CE(0)=1 indicates partial completion
+		 * Fig.6-7 and Table 6-8.
+		 */
+		nx_ce = get_csb_ce_ms3b(cmdp->crb.csb);
+
+		if (!csb_ce_termination(nx_ce) &&
+		    csb_ce_partial_completion(nx_ce)) {
+			/* Check CPB for more information
+			 * spbc and tpbc are valid
+			 */
+			sfbt = getnn(cmdp->cpb, out_sfbt); /* Table 6-4 */
+			subc = getnn(cmdp->cpb, out_subc); /* Table 6-4 */
+			spbc = get32(cmdp->cpb, out_spbc_decomp);
+			tpbc = get32(cmdp->crb.csb, tpbc);
+			assert(target_max >= tpbc);
+
+			goto ok_cc3; /* not an error */
+		} else {
+			/* History length error when CE(1)=1 CE(0)=0. */
+			rc = -1;
+			fprintf(stderr, "history length error cc= %d\n", cc);
+			goto err5;
+		}
+
+	case ERR_NX_TARGET_SPACE:
+
+		/* Target buffer not large enough; retry smaller input
+		 * data; give at least 1 byte.  SPBC/TPBC are not valid.
+		 */
+		assert(source_sz > history_len);
+		source_sz = ((source_sz - history_len + 2) / 2) + history_len;
+		NXPRT(fprintf(stderr, "ERR_NX_TARGET_SPACE; retry with "));
+		NXPRT(fprintf(stderr, "smaller input data src %d hist %d\n",
+			      source_sz, history_len));
+		goto restart_nx;
+
+	case ERR_NX_OK:
+
+		/* This should not happen for gzip formatted data;
+		 * we need trailing crc and isize
+		 */
+		fprintf(stderr, "ERR_NX_OK\n");
+		spbc = get32(cmdp->cpb, out_spbc_decomp);
+		tpbc = get32(cmdp->crb.csb, tpbc);
+		assert(target_max >= tpbc);
+		assert(spbc >= history_len);
+		source_sz = spbc - history_len;
+		goto offsets_state;
+
+	default:
+		fprintf(stderr, "error: cc= %d\n", cc);
+		rc = -1;
+		goto err5;
+	}
+
+ok_cc3:
+
+	NXPRT(fprintf(stderr, "cc3: sfbt: %x\n", sfbt));
+
+	assert(spbc > history_len);
+	source_sz = spbc - history_len;
+
+	/* Table 6-4: Source Final Block Type (SFBT) describes the
+	 * last processed deflate block and clues the software how to
+	 * resume the next job.  SUBC indicates how many input bits NX
+	 * consumed but did not process.  SPBC indicates how many
+	 * bytes of source were given to the accelerator including
+	 * history bytes.
+	 */
+
+	switch (sfbt) {
+		int dhtlen;
+
+	case 0x0: /* Deflate final EOB received */
+
+		/* Calculating the checksum start position. */
+
+		source_sz = source_sz - subc / 8;
+		is_final = 1;
+		break;
+
+		/* Resume decompression cases are below. Basically
+		 * indicates where NX has suspended and how to resume
+		 * the input stream.
+		 */
+
+	case 0x8: /* Within a literal block; use rembytecount */
+	case 0x9: /* Within a literal block; use rembytecount; bfinal=1 */
+
+		/* Supply the partially processed source byte again */
+		source_sz = source_sz - ((subc + 7) / 8);
+
+		/* SUBC LS 3bits: number of bits in the first source byte need
+		 * to be processed.
+		 * 000 means all 8 bits;  Table 6-3
+		 * Clear subc, histlen, sfbt, rembytecnt, dhtlen
+		 */
+		cmdp->cpb.in_subc = 0;
+		cmdp->cpb.in_sfbt = 0;
+		putnn(cmdp->cpb, in_subc, subc % 8);
+		putnn(cmdp->cpb, in_sfbt, sfbt);
+		putnn(cmdp->cpb, in_rembytecnt, getnn(cmdp->cpb,
+						      out_rembytecnt));
+		break;
+
+	case 0xA: /* Within a FH block; */
+	case 0xB: /* Within a FH block; bfinal=1 */
+
+		source_sz = source_sz - ((subc + 7) / 8);
+
+		/* Clear subc, histlen, sfbt, rembytecnt, dhtlen */
+		cmdp->cpb.in_subc = 0;
+		cmdp->cpb.in_sfbt = 0;
+		putnn(cmdp->cpb, in_subc, subc % 8);
+		putnn(cmdp->cpb, in_sfbt, sfbt);
+		break;
+
+	case 0xC: /* Within a DH block; */
+	case 0xD: /* Within a DH block; bfinal=1 */
+
+		source_sz = source_sz - ((subc + 7) / 8);
+
+		/* Clear subc, histlen, sfbt, rembytecnt, dhtlen */
+		cmdp->cpb.in_subc = 0;
+		cmdp->cpb.in_sfbt = 0;
+		putnn(cmdp->cpb, in_subc, subc % 8);
+		putnn(cmdp->cpb, in_sfbt, sfbt);
+
+		dhtlen = getnn(cmdp->cpb, out_dhtlen);
+		putnn(cmdp->cpb, in_dhtlen, dhtlen);
+		assert(dhtlen >= 42);
+
+		/* Round up to a qword */
+		dhtlen = (dhtlen + 127) / 128;
+
+		while (dhtlen > 0) { /* Copy dht from cpb.out to cpb.in */
+			--dhtlen;
+			cmdp->cpb.in_dht[dhtlen] = cmdp->cpb.out_dht[dhtlen];
+		}
+		break;
+
+	case 0xE: /* Within a block header; bfinal=0; */
+		     /* Also given if source data exactly ends (SUBC=0) with
+		      * EOB code with BFINAL=0.  Means the next byte will
+		      * contain a block header.
+		      */
+	case 0xF: /* within a block header with BFINAL=1. */
+
+		source_sz = source_sz - ((subc + 7) / 8);
+
+		/* Clear subc, histlen, sfbt, rembytecnt, dhtlen */
+		cmdp->cpb.in_subc = 0;
+		cmdp->cpb.in_sfbt = 0;
+		putnn(cmdp->cpb, in_subc, subc % 8);
+		putnn(cmdp->cpb, in_sfbt, sfbt);
+
+		/* Engine did not process any data */
+		if (is_eof && (source_sz == 0))
+			is_final = 1;
+	}
+
+offsets_state:
+
+	/* Adjust the source and target buffer offsets and lengths  */
+
+	NXPRT(fprintf(stderr, "offsets_state:\n"));
+
+	/* Delete input data from fifo_in */
+	used_in = used_in - source_sz;
+	cur_in = (cur_in + source_sz) % fifo_in_len;
+	input_file_offset = input_file_offset + source_sz;
+
+	/* Add output data to fifo_out */
+	used_out = used_out + tpbc;
+
+	assert(used_out <= fifo_out_len);
+
+	total_out = total_out + tpbc;
+
+	/* Deflate history is 32KB max.  No need to supply more
+	 * than 32KB on a resume.
+	 */
+	history_len = (total_out > window_max) ? window_max : total_out;
+
+	/* To estimate expected expansion in the next NX job; 500 means 50%.
+	 * Deflate best case is around 1 to 1000.
+	 */
+	last_comp_ratio = (1000UL * ((uint64_t)source_sz + 1))
+			  / ((uint64_t)tpbc + 1);
+	last_comp_ratio = NX_MAX(NX_MIN(1000UL, last_comp_ratio), 1);
+	NXPRT(fprintf(stderr, "comp_ratio %ld source_sz %d spbc %d tpbc %d\n",
+		      last_comp_ratio, source_sz, spbc, tpbc));
+
+	resuming = 1;
+
+finish_state:
+
+	NXPRT(fprintf(stderr, "finish_state:\n"));
+
+	if (is_final) {
+		if (used_out)
+			goto write_state; /* More data to write out */
+		else if (used_in < 8) {
+			/* Need at least 8 more bytes containing gzip crc
+			 * and isize.
+			 */
+			rc = -1;
+			goto err4;
+		} else {
+			/* Compare checksums and exit */
+			int i;
+			unsigned char tail[8];
+			uint32_t cksum, isize;
+
+			for (i = 0; i < 8; i++)
+				tail[i] = fifo_in[(cur_in + i) % fifo_in_len];
+			fprintf(stderr, "computed checksum %08x isize %08x\n",
+				cmdp->cpb.out_crc, (uint32_t) (total_out
+				% (1ULL<<32)));
+			cksum = ((uint32_t) tail[0] | (uint32_t) tail[1]<<8
+				 | (uint32_t) tail[2]<<16
+				 | (uint32_t) tail[3]<<24);
+			isize = ((uint32_t) tail[4] | (uint32_t) tail[5]<<8
+				 | (uint32_t) tail[6]<<16
+				 | (uint32_t) tail[7]<<24);
+			fprintf(stderr, "stored   checksum %08x isize %08x\n",
+				cksum, isize);
+
+			if (cksum == cmdp->cpb.out_crc && isize == (uint32_t)
+			    (total_out % (1ULL<<32))) {
+				rc = 0;	goto ok1;
+			} else {
+				rc = -1; goto err4;
+			}
+		}
+	} else
+		goto read_state;
+
+	return -1;
+
+err1:
+	fprintf(stderr, "error: not a gzip file, expect %x, read %x\n",
+		expect, c);
+	return -1;
+
+err2:
+	fprintf(stderr, "error: the FLG byte is wrong or not being handled\n");
+	return -1;
+
+err3:
+	fprintf(stderr, "error: gzip header\n");
+	return -1;
+
+err4:
+	fprintf(stderr, "error: checksum missing or mismatch\n");
+
+err5:
+ok1:
+	fprintf(stderr, "decomp is complete: fclose\n");
+	fclose(outf);
+
+	return rc;
+}
+
+
+int main(int argc, char **argv)
+{
+	int rc;
+	struct sigaction act;
+	void *handle;
+
+	nx_dbg = 0;
+	nx_gzip_log = NULL;
+	act.sa_handler = 0;
+	act.sa_sigaction = nxu_sigsegv_handler;
+	act.sa_flags = SA_SIGINFO;
+	act.sa_restorer = 0;
+	sigemptyset(&act.sa_mask);
+	sigaction(SIGSEGV, &act, NULL);
+
+	handle = nx_function_begin(NX_FUNC_COMP_GZIP, 0);
+	if (!handle) {
+		fprintf(stderr, "Unable to init NX, errno %d\n", errno);
+		exit(-1);
+	}
+
+	rc = decompress_file(argc, argv, handle);
+
+	nx_function_end(handle);
+
+	return rc;
+}
diff --git a/tools/testing/selftests/powerpc/nx-gzip/gzfht_test.c b/tools/testing/selftests/powerpc/nx-gzip/gzfht_test.c
new file mode 100644
index 000000000000..4de079923ccb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/gzfht_test.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/* P9 gzip sample code for demonstrating the P9 NX hardware interface.
+ * Not intended for productive uses or for performance or compression
+ * ratio measurements.  For simplicity of demonstration, this sample
+ * code compresses in to fixed Huffman blocks only (Deflate btype=1)
+ * and has very simple memory management.  Dynamic Huffman blocks
+ * (Deflate btype=2) are more involved as detailed in the user guide.
+ * Note also that /dev/crypto/gzip, VAS and skiboot support are
+ * required.
+ *
+ * Copyright 2020 IBM Corp.
+ *
+ * https://github.com/libnxz/power-gzip for zlib api and other utils
+ *
+ * Author: Bulent Abali <abali@us.ibm.com>
+ *
+ * Definitions of acronyms used here. See
+ * P9 NX Gzip Accelerator User's Manual for details:
+ * https://github.com/libnxz/power-gzip/blob/develop/doc/power_nx_gzip_um.pdf
+ *
+ * adler/crc: 32 bit checksums appended to stream tail
+ * ce:       completion extension
+ * cpb:      coprocessor parameter block (metadata)
+ * crb:      coprocessor request block (command)
+ * csb:      coprocessor status block (status)
+ * dht:      dynamic huffman table
+ * dde:      data descriptor element (address, length)
+ * ddl:      list of ddes
+ * dh/fh:    dynamic and fixed huffman types
+ * fc:       coprocessor function code
+ * histlen:  history/dictionary length
+ * history:  sliding window of up to 32KB of data
+ * lzcount:  Deflate LZ symbol counts
+ * rembytecnt: remaining byte count
+ * sfbt:     source final block type; last block's type during decomp
+ * spbc:     source processed byte count
+ * subc:     source unprocessed bit count
+ * tebc:     target ending bit count; valid bits in the last byte
+ * tpbc:     target processed byte count
+ * vas:      virtual accelerator switch; the user mode interface
+ */
+
+#define _ISOC11_SOURCE	// For aligned_alloc()
+#define _DEFAULT_SOURCE	// For endian.h
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <endian.h>
+#include <bits/endian.h>
+#include <sys/ioctl.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include "utils.h"
+#include "nxu.h"
+#include "nx.h"
+
+int nx_dbg;
+FILE *nx_gzip_log;
+
+#define NX_MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
+#define FNAME_MAX 1024
+#define FEXT ".nx.gz"
+
+#define SYSFS_MAX_REQ_BUF_PATH "devices/vio/ibm,compression-v1/nx_gzip_caps/req_max_processed_len"
+
+/*
+ * LZ counts returned in the user supplied nx_gzip_crb_cpb_t structure.
+ */
+static int compress_fht_sample(char *src, uint32_t srclen, char *dst,
+				uint32_t dstlen, int with_count,
+				struct nx_gzip_crb_cpb_t *cmdp, void *handle)
+{
+	uint32_t fc;
+
+	assert(!!cmdp);
+
+	put32(cmdp->crb, gzip_fc, 0);  /* clear */
+	fc = (with_count) ? GZIP_FC_COMPRESS_RESUME_FHT_COUNT :
+			    GZIP_FC_COMPRESS_RESUME_FHT;
+	putnn(cmdp->crb, gzip_fc, fc);
+	putnn(cmdp->cpb, in_histlen, 0); /* resuming with no history */
+	memset((void *) &cmdp->crb.csb, 0, sizeof(cmdp->crb.csb));
+
+	/* Section 6.6 programming notes; spbc may be in two different
+	 * places depending on FC.
+	 */
+	if (!with_count)
+		put32(cmdp->cpb, out_spbc_comp, 0);
+	else
+		put32(cmdp->cpb, out_spbc_comp_with_count, 0);
+
+	/* Figure 6-3 6-4; CSB location */
+	put64(cmdp->crb, csb_address, 0);
+	put64(cmdp->crb, csb_address,
+	      (uint64_t) &cmdp->crb.csb & csb_address_mask);
+
+	/* Source direct dde (scatter-gather list) */
+	clear_dde(cmdp->crb.source_dde);
+	putnn(cmdp->crb.source_dde, dde_count, 0);
+	put32(cmdp->crb.source_dde, ddebc, srclen);
+	put64(cmdp->crb.source_dde, ddead, (uint64_t) src);
+
+	/* Target direct dde (scatter-gather list) */
+	clear_dde(cmdp->crb.target_dde);
+	putnn(cmdp->crb.target_dde, dde_count, 0);
+	put32(cmdp->crb.target_dde, ddebc, dstlen);
+	put64(cmdp->crb.target_dde, ddead, (uint64_t) dst);
+
+	/* Submit the crb, the job descriptor, to the accelerator */
+	return nxu_submit_job(cmdp, handle);
+}
+
+/*
+ * Prepares a blank no filename no timestamp gzip header and returns
+ * the number of bytes written to buf.
+ * Gzip specification at https://tools.ietf.org/html/rfc1952
+ */
+int gzip_header_blank(char *buf)
+{
+	int i = 0;
+
+	buf[i++] = 0x1f; /* ID1 */
+	buf[i++] = 0x8b; /* ID2 */
+	buf[i++] = 0x08; /* CM  */
+	buf[i++] = 0x00; /* FLG */
+	buf[i++] = 0x00; /* MTIME */
+	buf[i++] = 0x00; /* MTIME */
+	buf[i++] = 0x00; /* MTIME */
+	buf[i++] = 0x00; /* MTIME */
+	buf[i++] = 0x04; /* XFL 4=fastest */
+	buf[i++] = 0x03; /* OS UNIX */
+
+	return i;
+}
+
+/*
+ * Z_SYNC_FLUSH as described in zlib.h.
+ * Returns number of appended bytes
+ */
+int append_sync_flush(char *buf, int tebc, int final)
+{
+	uint64_t flush;
+	int shift = (tebc & 0x7);
+
+	if (tebc > 0) {
+		/* Last byte is partially full */
+		buf = buf - 1;
+		*buf = *buf & (unsigned char) ((1<<tebc)-1);
+	} else
+		*buf = 0;
+	flush = ((0x1ULL & final) << shift) | *buf;
+	shift = shift + 3; /* BFINAL and BTYPE written */
+	shift = (shift <= 8) ? 8 : 16;
+	flush |= (0xFFFF0000ULL) << shift; /* Zero length block */
+	shift = shift + 32;
+	while (shift > 0) {
+		*buf++ = (unsigned char) (flush & 0xffULL);
+		flush = flush >> 8;
+		shift = shift - 8;
+	}
+	return(((tebc > 5) || (tebc == 0)) ? 5 : 4);
+}
+
+/*
+ * Final deflate block bit.  This call assumes the block
+ * beginning is byte aligned.
+ */
+static void set_bfinal(void *buf, int bfinal)
+{
+	char *b = buf;
+
+	if (bfinal)
+		*b = *b | (unsigned char) 0x01;
+	else
+		*b = *b & (unsigned char) 0xfe;
+}
+
+int compress_file(int argc, char **argv, void *handle)
+{
+	char *inbuf, *outbuf, *srcbuf, *dstbuf;
+	char outname[FNAME_MAX];
+	uint32_t srclen, dstlen;
+	uint32_t flushlen, chunk;
+	size_t inlen, outlen, dsttotlen, srctotlen;
+	uint32_t crc, spbc, tpbc, tebc;
+	int lzcounts = 0;
+	int cc;
+	int num_hdr_bytes;
+	struct nx_gzip_crb_cpb_t *cmdp;
+	uint32_t pagelen = 65536;
+	int fault_tries = NX_MAX_FAULTS;
+	char buf[32];
+
+	cmdp = (void *)(uintptr_t)
+		aligned_alloc(sizeof(struct nx_gzip_crb_cpb_t),
+			      sizeof(struct nx_gzip_crb_cpb_t));
+
+	if (argc != 2) {
+		fprintf(stderr, "usage: %s <fname>\n", argv[0]);
+		exit(-1);
+	}
+	if (read_file_alloc(argv[1], &inbuf, &inlen))
+		exit(-1);
+	fprintf(stderr, "file %s read, %ld bytes\n", argv[1], inlen);
+
+	/* Generous output buffer for header/trailer */
+	outlen = 2 * inlen + 1024;
+
+	assert(NULL != (outbuf = (char *)malloc(outlen)));
+	nxu_touch_pages(outbuf, outlen, pagelen, 1);
+
+	/*
+	 * On PowerVM, the hypervisor defines the maximum request buffer
+	 * size is defined and this value is available via sysfs.
+	 */
+	if (!read_sysfs_file(SYSFS_MAX_REQ_BUF_PATH, buf, sizeof(buf))) {
+		chunk = atoi(buf);
+	} else {
+		/* sysfs entry is not available on PowerNV */
+		/* Compress piecemeal in smallish chunks */
+		chunk = 1<<22;
+	}
+
+	/* Write the gzip header to the stream */
+	num_hdr_bytes = gzip_header_blank(outbuf);
+	dstbuf    = outbuf + num_hdr_bytes;
+	outlen    = outlen - num_hdr_bytes;
+	dsttotlen = num_hdr_bytes;
+
+	srcbuf    = inbuf;
+	srctotlen = 0;
+
+	/* Init the CRB, the coprocessor request block */
+	memset(&cmdp->crb, 0, sizeof(cmdp->crb));
+
+	/* Initial gzip crc32 */
+	put32(cmdp->cpb, in_crc, 0);
+
+	while (inlen > 0) {
+
+		/* Submit chunk size source data per job */
+		srclen = NX_MIN(chunk, inlen);
+		/* Supply large target in case data expands */
+		dstlen = NX_MIN(2*srclen, outlen);
+
+		/* Page faults are handled by the user code */
+
+		/* Fault-in pages; an improved code wouldn't touch so
+		 * many pages but would try to estimate the
+		 * compression ratio and adjust both the src and dst
+		 * touch amounts.
+		 */
+		nxu_touch_pages(cmdp, sizeof(struct nx_gzip_crb_cpb_t), pagelen,
+				1);
+		nxu_touch_pages(srcbuf, srclen, pagelen, 0);
+		nxu_touch_pages(dstbuf, dstlen, pagelen, 1);
+
+		cc = compress_fht_sample(
+			srcbuf, srclen,
+			dstbuf, dstlen,
+			lzcounts, cmdp, handle);
+
+		if (cc != ERR_NX_OK && cc != ERR_NX_TPBC_GT_SPBC &&
+		    cc != ERR_NX_AT_FAULT) {
+			fprintf(stderr, "nx error: cc= %d\n", cc);
+			exit(-1);
+		}
+
+		/* Page faults are handled by the user code */
+		if (cc == ERR_NX_AT_FAULT) {
+			NXPRT(fprintf(stderr, "page fault: cc= %d, ", cc));
+			NXPRT(fprintf(stderr, "try= %d, fsa= %08llx\n",
+				  fault_tries,
+				  (unsigned long long) cmdp->crb.csb.fsaddr));
+			fault_tries--;
+			if (fault_tries > 0) {
+				continue;
+			} else {
+				fprintf(stderr, "error: cannot progress; ");
+				fprintf(stderr, "too many faults\n");
+				exit(-1);
+			}
+		}
+
+		fault_tries = NX_MAX_FAULTS; /* Reset for the next chunk */
+
+		inlen     = inlen - srclen;
+		srcbuf    = srcbuf + srclen;
+		srctotlen = srctotlen + srclen;
+
+		/* Two possible locations for spbc depending on the function
+		 * code.
+		 */
+		spbc = (!lzcounts) ? get32(cmdp->cpb, out_spbc_comp) :
+			get32(cmdp->cpb, out_spbc_comp_with_count);
+		assert(spbc == srclen);
+
+		/* Target byte count */
+		tpbc = get32(cmdp->crb.csb, tpbc);
+		/* Target ending bit count */
+		tebc = getnn(cmdp->cpb, out_tebc);
+		NXPRT(fprintf(stderr, "compressed chunk %d ", spbc));
+		NXPRT(fprintf(stderr, "to %d bytes, tebc= %d\n", tpbc, tebc));
+
+		if (inlen > 0) { /* More chunks to go */
+			set_bfinal(dstbuf, 0);
+			dstbuf    = dstbuf + tpbc;
+			dsttotlen = dsttotlen + tpbc;
+			outlen    = outlen - tpbc;
+			/* Round up to the next byte with a flush
+			 * block; do not set the BFINAqL bit.
+			 */
+			flushlen  = append_sync_flush(dstbuf, tebc, 0);
+			dsttotlen = dsttotlen + flushlen;
+			outlen    = outlen - flushlen;
+			dstbuf    = dstbuf + flushlen;
+			NXPRT(fprintf(stderr, "added sync_flush %d bytes\n",
+					flushlen));
+		} else {  /* Done */
+			/* Set the BFINAL bit of the last block per Deflate
+			 * specification.
+			 */
+			set_bfinal(dstbuf, 1);
+			dstbuf    = dstbuf + tpbc;
+			dsttotlen = dsttotlen + tpbc;
+			outlen    = outlen - tpbc;
+		}
+
+		/* Resuming crc32 for the next chunk */
+		crc = get32(cmdp->cpb, out_crc);
+		put32(cmdp->cpb, in_crc, crc);
+		crc = be32toh(crc);
+	}
+
+	/* Append crc32 and ISIZE to the end */
+	memcpy(dstbuf, &crc, 4);
+	memcpy(dstbuf+4, &srctotlen, 4);
+	dsttotlen = dsttotlen + 8;
+	outlen    = outlen - 8;
+
+	assert(FNAME_MAX > (strlen(argv[1]) + strlen(FEXT)));
+	strcpy(outname, argv[1]);
+	strcat(outname, FEXT);
+	if (write_file(outname, outbuf, dsttotlen)) {
+		fprintf(stderr, "write error: %s\n", outname);
+		exit(-1);
+	}
+
+	fprintf(stderr, "compressed %ld to %ld bytes total, ", srctotlen,
+		dsttotlen);
+	fprintf(stderr, "crc32 checksum = %08x\n", crc);
+
+	if (inbuf != NULL)
+		free(inbuf);
+
+	if (outbuf != NULL)
+		free(outbuf);
+
+	return 0;
+}
+
+int main(int argc, char **argv)
+{
+	int rc;
+	struct sigaction act;
+	void *handle;
+
+	nx_dbg = 0;
+	nx_gzip_log = NULL;
+	act.sa_handler = 0;
+	act.sa_sigaction = nxu_sigsegv_handler;
+	act.sa_flags = SA_SIGINFO;
+	act.sa_restorer = 0;
+	sigemptyset(&act.sa_mask);
+	sigaction(SIGSEGV, &act, NULL);
+
+	handle = nx_function_begin(NX_FUNC_COMP_GZIP, 0);
+	if (!handle) {
+		fprintf(stderr, "Unable to init NX, errno %d\n", errno);
+		exit(-1);
+	}
+
+	rc = compress_file(argc, argv, handle);
+
+	nx_function_end(handle);
+
+	return rc;
+}
diff --git a/tools/testing/selftests/powerpc/nx-gzip/gzip_vas.c b/tools/testing/selftests/powerpc/nx-gzip/gzip_vas.c
new file mode 100644
index 000000000000..c055885da40a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/gzip_vas.c
@@ -0,0 +1,316 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * Copyright 2020 IBM Corp.
+ *
+ * Author: Bulent Abali <abali@us.ibm.com>
+ *
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <endian.h>
+#include <bits/endian.h>
+#include <sys/ioctl.h>
+#include <assert.h>
+#include <errno.h>
+#include <signal.h>
+#include "vas-api.h"
+#include "nx.h"
+#include "copy-paste.h"
+#include "nxu.h"
+#include "nx_dbg.h"
+#include <sys/platform/ppc.h>
+
+#define barrier()
+#define hwsync()    ({ asm volatile("sync" ::: "memory"); })
+
+#ifndef NX_NO_CPU_PRI
+#define cpu_pri_default()  ({ asm volatile ("or 2, 2, 2"); })
+#define cpu_pri_low()      ({ asm volatile ("or 31, 31, 31"); })
+#else
+#define cpu_pri_default()
+#define cpu_pri_low()
+#endif
+
+void *nx_fault_storage_address;
+
+struct nx_handle {
+	int fd;
+	int function;
+	void *paste_addr;
+};
+
+static int open_device_nodes(char *devname, int pri, struct nx_handle *handle)
+{
+	int rc, fd;
+	void *addr;
+	struct vas_tx_win_open_attr txattr;
+
+	fd = open(devname, O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, " open device name %s\n", devname);
+		return -errno;
+	}
+
+	memset(&txattr, 0, sizeof(txattr));
+	txattr.version = 1;
+	txattr.vas_id = pri;
+	rc = ioctl(fd, VAS_TX_WIN_OPEN, (unsigned long)&txattr);
+	if (rc < 0) {
+		fprintf(stderr, "ioctl() n %d, error %d\n", rc, errno);
+		rc = -errno;
+		goto out;
+	}
+
+	addr = mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0ULL);
+	if (addr == MAP_FAILED) {
+		fprintf(stderr, "mmap() failed, errno %d\n", errno);
+		rc = -errno;
+		goto out;
+	}
+	handle->fd = fd;
+	handle->paste_addr = (void *)((char *)addr + 0x400);
+
+	rc = 0;
+out:
+	close(fd);
+	return rc;
+}
+
+void *nx_function_begin(int function, int pri)
+{
+	int rc;
+	char *devname = "/dev/crypto/nx-gzip";
+	struct nx_handle *nxhandle;
+
+	if (function != NX_FUNC_COMP_GZIP) {
+		errno = EINVAL;
+		fprintf(stderr, " NX_FUNC_COMP_GZIP not found\n");
+		return NULL;
+	}
+
+
+	nxhandle = malloc(sizeof(*nxhandle));
+	if (!nxhandle) {
+		errno = ENOMEM;
+		fprintf(stderr, " No memory\n");
+		return NULL;
+	}
+
+	nxhandle->function = function;
+	rc = open_device_nodes(devname, pri, nxhandle);
+	if (rc < 0) {
+		errno = -rc;
+		fprintf(stderr, " open_device_nodes failed\n");
+		return NULL;
+	}
+
+	return nxhandle;
+}
+
+int nx_function_end(void *handle)
+{
+	int rc = 0;
+	struct nx_handle *nxhandle = handle;
+
+	rc = munmap(nxhandle->paste_addr - 0x400, 4096);
+	if (rc < 0) {
+		fprintf(stderr, "munmap() failed, errno %d\n", errno);
+		return rc;
+	}
+	close(nxhandle->fd);
+	free(nxhandle);
+
+	return rc;
+}
+
+static int nx_wait_for_csb(struct nx_gzip_crb_cpb_t *cmdp)
+{
+	long poll = 0;
+	uint64_t t;
+
+	/* Save power and let other threads use the h/w. top may show
+	 * 100% but only because OS doesn't know we slowed the this
+	 * h/w thread while polling. We're letting other threads have
+	 * higher throughput on the core.
+	 */
+	cpu_pri_low();
+
+#define CSB_MAX_POLL 200000000UL
+#define USLEEP_TH     300000UL
+
+	t = __ppc_get_timebase();
+
+	while (getnn(cmdp->crb.csb, csb_v) == 0) {
+		++poll;
+		hwsync();
+
+		cpu_pri_low();
+
+		/* usleep(0) takes around 29000 ticks ~60 us.
+		 * 300000 is spinning for about 600 us then
+		 * start sleeping.
+		 */
+		if ((__ppc_get_timebase() - t) > USLEEP_TH) {
+			cpu_pri_default();
+			usleep(1);
+		}
+
+		if (poll > CSB_MAX_POLL)
+			break;
+
+		/* Fault address from signal handler */
+		if (nx_fault_storage_address) {
+			cpu_pri_default();
+			return -EAGAIN;
+		}
+
+	}
+
+	cpu_pri_default();
+
+	/* hw has updated csb and output buffer */
+	hwsync();
+
+	/* Check CSB flags. */
+	if (getnn(cmdp->crb.csb, csb_v) == 0) {
+		fprintf(stderr, "CSB still not valid after %d polls.\n",
+			(int) poll);
+		prt_err("CSB still not valid after %d polls, giving up.\n",
+			(int) poll);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int nxu_run_job(struct nx_gzip_crb_cpb_t *cmdp, void *handle)
+{
+	int i, ret, retries;
+	struct nx_handle *nxhandle = handle;
+
+	assert(handle != NULL);
+	i = 0;
+	retries = 5000;
+	while (i++ < retries) {
+		hwsync();
+		vas_copy(&cmdp->crb, 0);
+		ret = vas_paste(nxhandle->paste_addr, 0);
+		hwsync();
+
+		NXPRT(fprintf(stderr, "Paste attempt %d/%d returns 0x%x\n",
+				i, retries, ret));
+
+		if ((ret == 2) || (ret == 3)) {
+
+			ret = nx_wait_for_csb(cmdp);
+			if (!ret) {
+				goto out;
+			} else if (ret == -EAGAIN) {
+				long x;
+
+				prt_err("Touching address %p, 0x%lx\n",
+					 nx_fault_storage_address,
+					 *(long *) nx_fault_storage_address);
+				x = *(long *) nx_fault_storage_address;
+				*(long *) nx_fault_storage_address = x;
+				nx_fault_storage_address = 0;
+				continue;
+			} else {
+				prt_err("wait_for_csb() returns %d\n", ret);
+				break;
+			}
+		} else {
+			if (i < 10) {
+				/* spin for few ticks */
+#define SPIN_TH 500UL
+				uint64_t fail_spin;
+
+				fail_spin = __ppc_get_timebase();
+				while ((__ppc_get_timebase() - fail_spin) <
+					 SPIN_TH)
+					;
+			} else {
+				/* sleep */
+				unsigned int pr = 0;
+
+				if (pr++ % 100 == 0) {
+					prt_err("Paste attempt %d/", i);
+					prt_err("%d, failed pid= %d\n", retries,
+						getpid());
+				}
+				usleep(1);
+			}
+			continue;
+		}
+	}
+
+out:
+	cpu_pri_default();
+
+	return ret;
+}
+
+int nxu_submit_job(struct nx_gzip_crb_cpb_t *cmdp, void *handle)
+{
+	int cc;
+
+	cc = nxu_run_job(cmdp, handle);
+
+	if (!cc)
+		cc = getnn(cmdp->crb.csb, csb_cc);      /* CC Table 6-8 */
+
+	return cc;
+}
+
+
+void nxu_sigsegv_handler(int sig, siginfo_t *info, void *ctx)
+{
+	fprintf(stderr, "%d: Got signal %d si_code %d, si_addr %p\n", getpid(),
+		sig, info->si_code, info->si_addr);
+
+	nx_fault_storage_address = info->si_addr;
+}
+
+/*
+ * Fault in pages prior to NX job submission.  wr=1 may be required to
+ * touch writeable pages.  System zero pages do not fault-in the page as
+ * intended.  Typically set wr=1 for NX target pages and set wr=0 for NX
+ * source pages.
+ */
+int nxu_touch_pages(void *buf, long buf_len, long page_len, int wr)
+{
+	char *begin = buf;
+	char *end = (char *) buf + buf_len - 1;
+	volatile char t;
+
+	assert(buf_len >= 0 && !!buf);
+
+	NXPRT(fprintf(stderr, "touch %p %p len 0x%lx wr=%d\n", buf,
+			(buf + buf_len), buf_len, wr));
+
+	if (buf_len <= 0 || buf == NULL)
+		return -1;
+
+	do {
+		t = *begin;
+		if (wr)
+			*begin = t;
+		begin = begin + page_len;
+	} while (begin < end);
+
+	/* When buf_sz is small or buf tail is in another page */
+	t = *end;
+	if (wr)
+		*end = t;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/copy-paste.h b/tools/testing/selftests/powerpc/nx-gzip/include/copy-paste.h
new file mode 100644
index 000000000000..0db2d6485037
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/copy-paste.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+/* From asm-compat.h */
+#define __stringify_in_c(...)	#__VA_ARGS__
+#define stringify_in_c(...)	__stringify_in_c(__VA_ARGS__) " "
+
+/*
+ * Macros taken from arch/powerpc/include/asm/ppc-opcode.h and other
+ * header files.
+ */
+#define ___PPC_RA(a)    (((a) & 0x1f) << 16)
+#define ___PPC_RB(b)    (((b) & 0x1f) << 11)
+
+#define PPC_INST_COPY                   0x7c20060c
+#define PPC_INST_PASTE                  0x7c20070d
+
+#define PPC_COPY(a, b)          stringify_in_c(.long PPC_INST_COPY | \
+						___PPC_RA(a) | ___PPC_RB(b))
+#define PPC_PASTE(a, b)         stringify_in_c(.long PPC_INST_PASTE | \
+						___PPC_RA(a) | ___PPC_RB(b))
+#define CR0_SHIFT	28
+#define CR0_MASK	0xF
+/*
+ * Copy/paste instructions:
+ *
+ *	copy RA,RB
+ *		Copy contents of address (RA) + effective_address(RB)
+ *		to internal copy-buffer.
+ *
+ *	paste RA,RB
+ *		Paste contents of internal copy-buffer to the address
+ *		(RA) + effective_address(RB)
+ */
+static inline int vas_copy(void *crb, int offset)
+{
+	asm volatile(PPC_COPY(%0, %1)";"
+		:
+		: "b" (offset), "b" (crb)
+		: "memory");
+
+	return 0;
+}
+
+static inline int vas_paste(void *paste_address, int offset)
+{
+	__u32 cr;
+
+	cr = 0;
+	asm volatile(PPC_PASTE(%1, %2)";"
+		"mfocrf %0, 0x80;"
+		: "=r" (cr)
+		: "b" (offset), "b" (paste_address)
+		: "memory", "cr0");
+
+	return (cr >> CR0_SHIFT) & CR0_MASK;
+}
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/crb.h b/tools/testing/selftests/powerpc/nx-gzip/include/crb.h
new file mode 100644
index 000000000000..ab101085fa7e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/crb.h
@@ -0,0 +1,155 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __CRB_H
+#define __CRB_H
+#include <linux/types.h>
+#include "nx.h"
+
+/* CCW 842 CI/FC masks
+ * NX P8 workbook, section 4.3.1, figure 4-6
+ * "CI/FC Boundary by NX CT type"
+ */
+#define CCW_CI_842              (0x00003ff8)
+#define CCW_FC_842              (0x00000007)
+
+/* Chapter 6.5.8 Coprocessor-Completion Block (CCB) */
+
+#define CCB_VALUE		(0x3fffffffffffffff)
+#define CCB_ADDRESS		(0xfffffffffffffff8)
+#define CCB_CM			(0x0000000000000007)
+#define CCB_CM0			(0x0000000000000004)
+#define CCB_CM12		(0x0000000000000003)
+
+#define CCB_CM0_ALL_COMPLETIONS	(0x0)
+#define CCB_CM0_LAST_IN_CHAIN	(0x4)
+#define CCB_CM12_STORE		(0x0)
+#define CCB_CM12_INTERRUPT	(0x1)
+
+#define CCB_SIZE		(0x10)
+#define CCB_ALIGN		CCB_SIZE
+
+struct coprocessor_completion_block {
+	__be64 value;
+	__be64 address;
+} __aligned(CCB_ALIGN);
+
+
+/* Chapter 6.5.7 Coprocessor-Status Block (CSB) */
+
+#define CSB_V			(0x80)
+#define CSB_F			(0x04)
+#define CSB_CH			(0x03)
+#define CSB_CE_INCOMPLETE	(0x80)
+#define CSB_CE_TERMINATION	(0x40)
+#define CSB_CE_TPBC		(0x20)
+
+#define CSB_CC_SUCCESS		(0)
+#define CSB_CC_INVALID_ALIGN	(1)
+#define CSB_CC_OPERAND_OVERLAP	(2)
+#define CSB_CC_DATA_LENGTH	(3)
+#define CSB_CC_TRANSLATION	(5)
+#define CSB_CC_PROTECTION	(6)
+#define CSB_CC_RD_EXTERNAL	(7)
+#define CSB_CC_INVALID_OPERAND	(8)
+#define CSB_CC_PRIVILEGE	(9)
+#define CSB_CC_INTERNAL		(10)
+#define CSB_CC_WR_EXTERNAL	(12)
+#define CSB_CC_NOSPC		(13)
+#define CSB_CC_EXCESSIVE_DDE	(14)
+#define CSB_CC_WR_TRANSLATION	(15)
+#define CSB_CC_WR_PROTECTION	(16)
+#define CSB_CC_UNKNOWN_CODE	(17)
+#define CSB_CC_ABORT		(18)
+#define CSB_CC_TRANSPORT	(20)
+#define CSB_CC_SEGMENTED_DDL	(31)
+#define CSB_CC_PROGRESS_POINT	(32)
+#define CSB_CC_DDE_OVERFLOW	(33)
+#define CSB_CC_SESSION		(34)
+#define CSB_CC_PROVISION	(36)
+#define CSB_CC_CHAIN		(37)
+#define CSB_CC_SEQUENCE		(38)
+#define CSB_CC_HW		(39)
+
+#define CSB_SIZE		(0x10)
+#define CSB_ALIGN		CSB_SIZE
+
+struct coprocessor_status_block {
+	__u8 flags;
+	__u8 cs;
+	__u8 cc;
+	__u8 ce;
+	__be32 count;
+	__be64 address;
+} __aligned(CSB_ALIGN);
+
+
+/* Chapter 6.5.10 Data-Descriptor List (DDL)
+ * each list contains one or more Data-Descriptor Entries (DDE)
+ */
+
+#define DDE_P			(0x8000)
+
+#define DDE_SIZE		(0x10)
+#define DDE_ALIGN		DDE_SIZE
+
+struct data_descriptor_entry {
+	__be16 flags;
+	__u8 count;
+	__u8 index;
+	__be32 length;
+	__be64 address;
+} __aligned(DDE_ALIGN);
+
+
+/* Chapter 6.5.2 Coprocessor-Request Block (CRB) */
+
+#define CRB_SIZE		(0x80)
+#define CRB_ALIGN		(0x100) /* Errata: requires 256 alignment */
+
+
+/* Coprocessor Status Block field
+ *   ADDRESS	address of CSB
+ *   C		CCB is valid
+ *   AT		0 = addrs are virtual, 1 = addrs are phys
+ *   M		enable perf monitor
+ */
+#define CRB_CSB_ADDRESS		(0xfffffffffffffff0)
+#define CRB_CSB_C		(0x0000000000000008)
+#define CRB_CSB_AT		(0x0000000000000002)
+#define CRB_CSB_M		(0x0000000000000001)
+
+struct coprocessor_request_block {
+	__be32 ccw;
+	__be32 flags;
+	__be64 csb_addr;
+
+	struct data_descriptor_entry source;
+	struct data_descriptor_entry target;
+
+	struct coprocessor_completion_block ccb;
+
+	__u8 reserved[48];
+
+	struct coprocessor_status_block csb;
+} __aligned(CRB_ALIGN);
+
+#define crb_csb_addr(c)         __be64_to_cpu(c->csb_addr)
+#define crb_nx_fault_addr(c)    __be64_to_cpu(c->stamp.nx.fault_storage_addr)
+#define crb_nx_flags(c)         c->stamp.nx.flags
+#define crb_nx_fault_status(c)  c->stamp.nx.fault_status
+#define crb_nx_pswid(c)		c->stamp.nx.pswid
+
+
+/* RFC02167 Initiate Coprocessor Instructions document
+ * Chapter 8.2.1.1.1 RS
+ * Chapter 8.2.3 Coprocessor Directive
+ * Chapter 8.2.4 Execution
+ *
+ * The CCW must be converted to BE before passing to icswx()
+ */
+
+#define CCW_PS                  (0xff000000)
+#define CCW_CT                  (0x00ff0000)
+#define CCW_CD                  (0x0000ffff)
+#define CCW_CL                  (0x0000c000)
+
+#endif
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/nx.h b/tools/testing/selftests/powerpc/nx-gzip/include/nx.h
new file mode 100644
index 000000000000..1abe23fc29e8
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/nx.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2020 IBM Corp.
+ *
+ */
+#ifndef _NX_H
+#define _NX_H
+
+#include <stdbool.h>
+
+#define	NX_FUNC_COMP_842	1
+#define NX_FUNC_COMP_GZIP	2
+
+#ifndef __aligned
+#define __aligned(x)	__attribute__((aligned(x)))
+#endif
+
+struct nx842_func_args {
+	bool use_crc;
+	bool decompress;		/* true decompress; false compress */
+	bool move_data;
+	int timeout;			/* seconds */
+};
+
+struct nxbuf_t {
+	int len;
+	char *buf;
+};
+
+/* @function should be EFT (aka 842), GZIP etc */
+void *nx_function_begin(int function, int pri);
+
+int nx_function(void *handle, struct nxbuf_t *in, struct nxbuf_t *out,
+		void *arg);
+
+int nx_function_end(void *handle);
+
+#endif	/* _NX_H */
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/nx_dbg.h b/tools/testing/selftests/powerpc/nx-gzip/include/nx_dbg.h
new file mode 100644
index 000000000000..16464e19c47f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/nx_dbg.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2020 IBM Corporation
+ *
+ */
+
+#ifndef _NXU_DBG_H_
+#define _NXU_DBG_H_
+
+#include <sys/file.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <time.h>
+#include <pthread.h>
+
+extern FILE * nx_gzip_log;
+extern int nx_gzip_trace;
+extern unsigned int nx_gzip_inflate_impl;
+extern unsigned int nx_gzip_deflate_impl;
+extern unsigned int nx_gzip_inflate_flags;
+extern unsigned int nx_gzip_deflate_flags;
+
+extern int nx_dbg;
+pthread_mutex_t mutex_log;
+
+#define nx_gzip_trace_enabled()       (nx_gzip_trace & 0x1)
+#define nx_gzip_hw_trace_enabled()    (nx_gzip_trace & 0x2)
+#define nx_gzip_sw_trace_enabled()    (nx_gzip_trace & 0x4)
+#define nx_gzip_gather_statistics()   (nx_gzip_trace & 0x8)
+#define nx_gzip_per_stream_stat()     (nx_gzip_trace & 0x10)
+
+#define prt(fmt, ...) do { \
+	pthread_mutex_lock(&mutex_log);					\
+	flock(nx_gzip_log->_fileno, LOCK_EX);				\
+	time_t t; struct tm *m; time(&t); m = localtime(&t);		\
+	fprintf(nx_gzip_log, "[%04d/%02d/%02d %02d:%02d:%02d] "		\
+		"pid %d: " fmt,	\
+		(int)m->tm_year + 1900, (int)m->tm_mon+1, (int)m->tm_mday, \
+		(int)m->tm_hour, (int)m->tm_min, (int)m->tm_sec,	\
+		(int)getpid(), ## __VA_ARGS__);				\
+	fflush(nx_gzip_log);						\
+	flock(nx_gzip_log->_fileno, LOCK_UN);				\
+	pthread_mutex_unlock(&mutex_log);				\
+} while (0)
+
+/* Use in case of an error */
+#define prt_err(fmt, ...) do { if (nx_dbg >= 0) {			\
+	prt("%s:%u: Error: "fmt,					\
+		__FILE__, __LINE__, ## __VA_ARGS__);			\
+}} while (0)
+
+/* Use in case of an warning */
+#define prt_warn(fmt, ...) do {	if (nx_dbg >= 1) {			\
+	prt("%s:%u: Warning: "fmt,					\
+		__FILE__, __LINE__, ## __VA_ARGS__);			\
+}} while (0)
+
+/* Informational printouts */
+#define prt_info(fmt, ...) do {	if (nx_dbg >= 2) {			\
+	prt("Info: "fmt, ## __VA_ARGS__);				\
+}} while (0)
+
+/* Trace zlib wrapper code */
+#define prt_trace(fmt, ...) do { if (nx_gzip_trace_enabled()) {		\
+	prt("### "fmt, ## __VA_ARGS__);					\
+}} while (0)
+
+/* Trace statistics */
+#define prt_stat(fmt, ...) do {	if (nx_gzip_gather_statistics()) {	\
+	prt("### "fmt, ## __VA_ARGS__);					\
+}} while (0)
+
+/* Trace zlib hardware implementation */
+#define hw_trace(fmt, ...) do {						\
+		if (nx_gzip_hw_trace_enabled())				\
+			fprintf(nx_gzip_log, "hhh " fmt, ## __VA_ARGS__); \
+	} while (0)
+
+/* Trace zlib software implementation */
+#define sw_trace(fmt, ...) do {						\
+		if (nx_gzip_sw_trace_enabled())				\
+			fprintf(nx_gzip_log, "sss " fmt, ## __VA_ARGS__); \
+	} while (0)
+
+
+/**
+ * str_to_num - Convert string into number and copy with endings like
+ *              KiB for kilobyte
+ *              MiB for megabyte
+ *              GiB for gigabyte
+ */
+uint64_t str_to_num(char *str);
+void nx_lib_debug(int onoff);
+
+#endif	/* _NXU_DBG_H_ */
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/nxu.h b/tools/testing/selftests/powerpc/nx-gzip/include/nxu.h
new file mode 100644
index 000000000000..20a4e883e0d3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/nxu.h
@@ -0,0 +1,650 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Hardware interface of the NX-GZIP compression accelerator
+ *
+ * Copyright (C) IBM Corporation, 2020
+ *
+ * Author: Bulent Abali <abali@us.ibm.com>
+ *
+ */
+
+#ifndef _NXU_H
+#define _NXU_H
+
+#include <stdint.h>
+#include <endian.h>
+#include "nx.h"
+
+/* deflate */
+#define LLSZ   286
+#define DSZ    30
+
+/* nx */
+#define DHTSZ  18
+#define DHT_MAXSZ 288
+#define MAX_DDE_COUNT 256
+
+/* util */
+#ifdef NXDBG
+#define NXPRT(X)	X
+#else
+#define NXPRT(X)
+#endif
+
+#ifdef NXTIMER
+#include <sys/platform/ppc.h>
+#define NX_CLK(X)	X
+#define nx_get_time()	__ppc_get_timebase()
+#define nx_get_freq()	__ppc_get_timebase_freq()
+#else
+#define NX_CLK(X)
+#define nx_get_time()  (-1)
+#define nx_get_freq()  (-1)
+#endif
+
+#define NX_MAX_FAULTS  500
+
+/*
+ * Definitions of acronyms used here. See
+ * P9 NX Gzip Accelerator User's Manual for details:
+ * https://github.com/libnxz/power-gzip/blob/develop/doc/power_nx_gzip_um.pdf
+ *
+ * adler/crc: 32 bit checksums appended to stream tail
+ * ce:       completion extension
+ * cpb:      coprocessor parameter block (metadata)
+ * crb:      coprocessor request block (command)
+ * csb:      coprocessor status block (status)
+ * dht:      dynamic huffman table
+ * dde:      data descriptor element (address, length)
+ * ddl:      list of ddes
+ * dh/fh:    dynamic and fixed huffman types
+ * fc:       coprocessor function code
+ * histlen:  history/dictionary length
+ * history:  sliding window of up to 32KB of data
+ * lzcount:  Deflate LZ symbol counts
+ * rembytecnt: remaining byte count
+ * sfbt:     source final block type; last block's type during decomp
+ * spbc:     source processed byte count
+ * subc:     source unprocessed bit count
+ * tebc:     target ending bit count; valid bits in the last byte
+ * tpbc:     target processed byte count
+ * vas:      virtual accelerator switch; the user mode interface
+ */
+
+union nx_qw_t {
+	uint32_t word[4];
+	uint64_t dword[2];
+} __aligned(16);
+
+/*
+ * Note: NX registers with fewer than 32 bits are declared by
+ * convention as uint32_t variables in unions. If *_offset and *_mask
+ * are defined for a variable, then use get_ put_ macros to
+ * conveniently access the register fields for endian conversions.
+ */
+
+struct nx_dde_t {
+	/* Data Descriptor Element, Section 6.4 */
+	union {
+		uint32_t dde_count;
+		/* When dde_count == 0 ddead is a pointer to a data buffer;
+		 * ddebc is the buffer length bytes.
+		 * When dde_count > 0 dde is an indirect dde; ddead is a
+		 * pointer to a contiguous list of direct ddes; ddebc is the
+		 * total length of all data pointed to by the list of direct
+		 * ddes. Note that only one level of indirection is permitted.
+		 * See Section 6.4 of the user manual for additional details.
+		 */
+	};
+	uint32_t ddebc; /* dde byte count */
+	uint64_t ddead; /* dde address */
+} __aligned(16);
+
+struct nx_csb_t {
+	/* Coprocessor Status Block, Section 6.6  */
+	union {
+		uint32_t csb_v;
+		/* Valid bit. v must be set to 0 by the program
+		 * before submitting the coprocessor command.
+		 * Software can poll for the v bit
+		 */
+
+		uint32_t csb_f;
+		/* 16B CSB size. Written to 0 by DMA when it writes the CPB */
+
+		uint32_t csb_cs;
+		/* cs completion sequence; unused */
+
+		uint32_t csb_cc;
+		/* cc completion code; cc != 0 exception occurred */
+
+		uint32_t csb_ce;
+		/* ce completion extension */
+
+	};
+	uint32_t tpbc;
+	/* target processed byte count TPBC */
+
+	uint64_t fsaddr;
+	/* Section 6.12.1 CSB NonZero error summary.  FSA Failing storage
+	 * address.  Address where error occurred. When available, written
+	 * to A field of CSB
+	 */
+} __aligned(16);
+
+struct nx_ccb_t {
+	/* Coprocessor Completion Block, Section 6.7 */
+
+	uint32_t reserved[3];
+	union {
+		/* When crb.c==0 (no ccb defined) it is reserved;
+		 * When crb.c==1 (ccb defined) it is cm
+		 */
+
+		uint32_t ccb_cm;
+		/* Signal interrupt of crb.c==1 and cm==1 */
+
+		uint32_t word;
+		/* generic access to the 32bit word */
+	};
+} __aligned(16);
+
+struct vas_stamped_crb_t {
+	/*
+	 * CRB operand of the paste coprocessor instruction is stamped
+	 * in quadword 4 with the information shown here as its written
+	 * in to the receive FIFO of the coprocessor
+	 */
+
+	union {
+		uint32_t vas_buf_num;
+		/* Verification only vas buffer number which correlates to
+		 * the low order bits of the atag in the paste command
+		 */
+
+		uint32_t send_wc_id;
+		/* Pointer to Send Window Context that provides for NX address
+		 * translation information, such as MSR and LPCR bits, job
+		 * completion interrupt RA, PSWID, and job utilization counter.
+		 */
+
+	};
+	union {
+		uint32_t recv_wc_id;
+		/* Pointer to Receive Window Context. NX uses this to return
+		 * credits to a Receive FIFO as entries are dequeued.
+		 */
+
+	};
+	uint32_t reserved2;
+	union {
+		uint32_t vas_invalid;
+		/* Invalid bit. If this bit is 1 the CRB is discarded by
+		 * NX upon fetching from the receive FIFO. If this bit is 0
+		 * the CRB is processed normally. The bit is stamped to 0
+		 * by VAS and may be written to 1 by hypervisor while
+		 * the CRB is in the receive FIFO (in memory).
+		 */
+
+	};
+};
+
+struct nx_stamped_fault_crb_t {
+	/*
+	 * A CRB that has a translation fault is stamped by NX in quadword 4
+	 * and pasted to the Fault Send Window in VAS.
+	 */
+	uint64_t fsa;
+	union {
+		uint32_t nxsf_t;
+		uint32_t nxsf_fs;
+	};
+	uint32_t pswid;
+};
+
+union stamped_crb_t {
+	struct vas_stamped_crb_t      vas;
+	struct nx_stamped_fault_crb_t nx;
+};
+
+struct nx_gzip_cpb_t {
+	/*
+	 * Coprocessor Parameter Block In/Out are used to pass metadata
+	 * to/from accelerator.  Tables 6.5 and 6.6 of the user manual.
+	 */
+
+	/* CPBInput */
+
+	struct {
+		union {
+		union nx_qw_t qw0;
+			struct {
+				uint32_t in_adler;            /* bits 0:31  */
+				uint32_t in_crc;              /* bits 32:63 */
+				union {
+					uint32_t in_histlen;  /* bits 64:75 */
+					uint32_t in_subc;     /* bits 93:95 */
+				};
+				union {
+					/* bits 108:111 */
+					uint32_t in_sfbt;
+					/* bits 112:127 */
+					uint32_t in_rembytecnt;
+					/* bits 116:127 */
+					uint32_t in_dhtlen;
+				};
+			};
+		};
+		union {
+			union nx_qw_t  in_dht[DHTSZ];	/* qw[1:18]     */
+			char in_dht_char[DHT_MAXSZ];	/* byte access  */
+		};
+		union nx_qw_t  reserved[5];		/* qw[19:23]    */
+	};
+
+	/* CPBOutput */
+
+	volatile struct {
+		union {
+			union nx_qw_t qw24;
+			struct {
+				uint32_t out_adler;    /* bits 0:31  qw[24] */
+				uint32_t out_crc;      /* bits 32:63 qw[24] */
+				union {
+					/* bits 77:79 qw[24] */
+					uint32_t out_tebc;
+					/* bits 80:95 qw[24] */
+					uint32_t out_subc;
+				};
+				union {
+					/* bits 108:111 qw[24] */
+					uint32_t out_sfbt;
+					/* bits 112:127 qw[24] */
+					uint32_t out_rembytecnt;
+					/* bits 116:127 qw[24] */
+					uint32_t out_dhtlen;
+				};
+			};
+		};
+		union {
+			union nx_qw_t  qw25[79];        /* qw[25:103] */
+			/* qw[25] compress no lzcounts or wrap */
+			uint32_t out_spbc_comp_wrap;
+			uint32_t out_spbc_wrap;         /* qw[25] wrap */
+			/* qw[25] compress no lzcounts */
+			uint32_t out_spbc_comp;
+			 /* 286 LL and 30 D symbol counts */
+			uint32_t out_lzcount[LLSZ+DSZ];
+			struct {
+				union nx_qw_t  out_dht[DHTSZ];  /* qw[25:42] */
+				/* qw[43] decompress */
+				uint32_t out_spbc_decomp;
+			};
+		};
+		/* qw[104] compress with lzcounts */
+		uint32_t out_spbc_comp_with_count;
+	};
+} __aligned(128);
+
+struct nx_gzip_crb_t {
+	union {                   /* byte[0:3]   */
+		uint32_t gzip_fc;     /* bits[24-31] */
+	};
+	uint32_t reserved1;       /* byte[4:7]   */
+	union {
+		uint64_t csb_address; /* byte[8:15]  */
+		struct {
+			uint32_t reserved2;
+			union {
+				uint32_t crb_c;
+				/* c==0 no ccb defined */
+
+				uint32_t crb_at;
+				/* at==0 address type is ignored;
+				 * all addrs effective assumed.
+				 */
+
+			};
+		};
+	};
+	struct nx_dde_t source_dde;           /* byte[16:31] */
+	struct nx_dde_t target_dde;           /* byte[32:47] */
+	volatile struct nx_ccb_t ccb;         /* byte[48:63] */
+	volatile union {
+		/* byte[64:239] shift csb by 128 bytes out of the crb; csb was
+		 * in crb earlier; JReilly says csb written with partial inject
+		 */
+		union nx_qw_t reserved64[11];
+		union stamped_crb_t stamp;       /* byte[64:79] */
+	};
+	volatile struct nx_csb_t csb;
+} __aligned(128);
+
+struct nx_gzip_crb_cpb_t {
+	struct nx_gzip_crb_t crb;
+	struct nx_gzip_cpb_t cpb;
+} __aligned(2048);
+
+
+/*
+ * NX hardware convention has the msb bit on the left numbered 0.
+ * The defines below has *_offset defined as the right most bit
+ * position of a field.  x of size_mask(x) is the field width in bits.
+ */
+
+#define size_mask(x)          ((1U<<(x))-1)
+
+/*
+ * Offsets and Widths within the containing 32 bits of the various NX
+ * gzip hardware registers.  Use the getnn/putnn macros to access
+ * these regs
+ */
+
+#define dde_count_mask        size_mask(8)
+#define dde_count_offset      23
+
+/* CSB */
+
+#define csb_v_mask            size_mask(1)
+#define csb_v_offset          0
+#define csb_f_mask            size_mask(1)
+#define csb_f_offset          6
+#define csb_cs_mask           size_mask(8)
+#define csb_cs_offset         15
+#define csb_cc_mask           size_mask(8)
+#define csb_cc_offset         23
+#define csb_ce_mask           size_mask(8)
+#define csb_ce_offset         31
+
+/* CCB */
+
+#define ccb_cm_mask           size_mask(3)
+#define ccb_cm_offset         31
+
+/* VAS stamped CRB fields */
+
+#define vas_buf_num_mask      size_mask(6)
+#define vas_buf_num_offset    5
+#define send_wc_id_mask       size_mask(16)
+#define send_wc_id_offset     31
+#define recv_wc_id_mask       size_mask(16)
+#define recv_wc_id_offset     31
+#define vas_invalid_mask      size_mask(1)
+#define vas_invalid_offset    31
+
+/* NX stamped fault CRB fields */
+
+#define nxsf_t_mask           size_mask(1)
+#define nxsf_t_offset         23
+#define nxsf_fs_mask          size_mask(8)
+#define nxsf_fs_offset        31
+
+/* CPB input */
+
+#define in_histlen_mask       size_mask(12)
+#define in_histlen_offset     11
+#define in_dhtlen_mask        size_mask(12)
+#define in_dhtlen_offset      31
+#define in_subc_mask          size_mask(3)
+#define in_subc_offset        31
+#define in_sfbt_mask          size_mask(4)
+#define in_sfbt_offset        15
+#define in_rembytecnt_mask    size_mask(16)
+#define in_rembytecnt_offset  31
+
+/* CPB output */
+
+#define out_tebc_mask         size_mask(3)
+#define out_tebc_offset       15
+#define out_subc_mask         size_mask(16)
+#define out_subc_offset       31
+#define out_sfbt_mask         size_mask(4)
+#define out_sfbt_offset       15
+#define out_rembytecnt_mask   size_mask(16)
+#define out_rembytecnt_offset 31
+#define out_dhtlen_mask       size_mask(12)
+#define out_dhtlen_offset     31
+
+/* CRB */
+
+#define gzip_fc_mask          size_mask(8)
+#define gzip_fc_offset        31
+#define crb_c_mask            size_mask(1)
+#define crb_c_offset          28
+#define crb_at_mask           size_mask(1)
+#define crb_at_offset         30
+#define csb_address_mask      ~(15UL) /* mask off bottom 4b */
+
+/*
+ * Access macros for the registers.  Do not access registers directly
+ * because of the endian conversion.  P9 processor may run either as
+ * Little or Big endian. However the NX coprocessor regs are always
+ * big endian.
+ * Use the 32 and 64b macros to access respective
+ * register sizes.
+ * Use nn forms for the register fields shorter than 32 bits.
+ */
+
+#define getnn(ST, REG)      ((be32toh(ST.REG) >> (31-REG##_offset)) \
+				 & REG##_mask)
+#define getpnn(ST, REG)     ((be32toh((ST)->REG) >> (31-REG##_offset)) \
+				 & REG##_mask)
+#define get32(ST, REG)      (be32toh(ST.REG))
+#define getp32(ST, REG)     (be32toh((ST)->REG))
+#define get64(ST, REG)      (be64toh(ST.REG))
+#define getp64(ST, REG)     (be64toh((ST)->REG))
+
+#define unget32(ST, REG)    (get32(ST, REG) & ~((REG##_mask) \
+				<< (31-REG##_offset)))
+/* get 32bits less the REG field */
+
+#define ungetp32(ST, REG)   (getp32(ST, REG) & ~((REG##_mask) \
+				<< (31-REG##_offset)))
+/* get 32bits less the REG field */
+
+#define clear_regs(ST)      memset((void *)(&(ST)), 0, sizeof(ST))
+#define clear_dde(ST)       do { ST.dde_count = ST.ddebc = 0; ST.ddead = 0; \
+				} while (0)
+#define clearp_dde(ST)      do { (ST)->dde_count = (ST)->ddebc = 0; \
+				 (ST)->ddead = 0; \
+				} while (0)
+#define clear_struct(ST)    memset((void *)(&(ST)), 0, sizeof(ST))
+#define putnn(ST, REG, X)   (ST.REG = htobe32(unget32(ST, REG) | (((X) \
+				 & REG##_mask) << (31-REG##_offset))))
+#define putpnn(ST, REG, X)  ((ST)->REG = htobe32(ungetp32(ST, REG) \
+				| (((X) & REG##_mask) << (31-REG##_offset))))
+
+#define put32(ST, REG, X)   (ST.REG = htobe32(X))
+#define putp32(ST, REG, X)  ((ST)->REG = htobe32(X))
+#define put64(ST, REG, X)   (ST.REG = htobe64(X))
+#define putp64(ST, REG, X)  ((ST)->REG = htobe64(X))
+
+/*
+ * Completion extension ce(0) ce(1) ce(2).  Bits ce(3-7)
+ * unused.  Section 6.6 Figure 6.7.
+ */
+
+#define get_csb_ce(ST) ((uint32_t)getnn(ST, csb_ce))
+#define get_csb_ce_ms3b(ST) (get_csb_ce(ST) >> 5)
+#define put_csb_ce_ms3b(ST, X) putnn(ST, csb_ce, ((uint32_t)(X) << 5))
+
+#define CSB_CE_PARTIAL         0x4
+#define CSB_CE_TERMINATE       0x2
+#define CSB_CE_TPBC_VALID      0x1
+
+#define csb_ce_termination(X)         (!!((X) & CSB_CE_TERMINATE))
+/* termination, output buffers may be modified, SPBC/TPBC invalid Fig.6-7 */
+
+#define csb_ce_check_completion(X)    (!csb_ce_termination(X))
+/* if not terminated then check full or partial completion */
+
+#define csb_ce_partial_completion(X)  (!!((X) & CSB_CE_PARTIAL))
+#define csb_ce_full_completion(X)     (!csb_ce_partial_completion(X))
+#define csb_ce_tpbc_valid(X)          (!!((X) & CSB_CE_TPBC_VALID))
+/* TPBC indicates successfully stored data count */
+
+#define csb_ce_default_err(X)         csb_ce_termination(X)
+/* most error CEs have CE(0)=0 and CE(1)=1 */
+
+#define csb_ce_cc3_partial(X)         csb_ce_partial_completion(X)
+/* some CC=3 are partially completed, Table 6-8 */
+
+#define csb_ce_cc64(X)                ((X)&(CSB_CE_PARTIAL \
+					| CSB_CE_TERMINATE) == 0)
+/* Compression: when TPBC>SPBC then CC=64 Table 6-8; target didn't
+ * compress smaller than source.
+ */
+
+/* Decompress SFBT combinations Tables 5-3, 6-4, 6-6 */
+
+#define SFBT_BFINAL 0x1
+#define SFBT_LIT    0x4
+#define SFBT_FHT    0x5
+#define SFBT_DHT    0x6
+#define SFBT_HDR    0x7
+
+/*
+ * NX gzip function codes. Table 6.2.
+ * Bits 0:4 are the FC. Bit 5 is used by the DMA controller to
+ * select one of the two Byte Count Limits.
+ */
+
+#define GZIP_FC_LIMIT_MASK                               0x01
+#define GZIP_FC_COMPRESS_FHT                             0x00
+#define GZIP_FC_COMPRESS_DHT                             0x02
+#define GZIP_FC_COMPRESS_FHT_COUNT                       0x04
+#define GZIP_FC_COMPRESS_DHT_COUNT                       0x06
+#define GZIP_FC_COMPRESS_RESUME_FHT                      0x08
+#define GZIP_FC_COMPRESS_RESUME_DHT                      0x0a
+#define GZIP_FC_COMPRESS_RESUME_FHT_COUNT                0x0c
+#define GZIP_FC_COMPRESS_RESUME_DHT_COUNT                0x0e
+#define GZIP_FC_DECOMPRESS                               0x10
+#define GZIP_FC_DECOMPRESS_SINGLE_BLK_N_SUSPEND          0x12
+#define GZIP_FC_DECOMPRESS_RESUME                        0x14
+#define GZIP_FC_DECOMPRESS_RESUME_SINGLE_BLK_N_SUSPEND   0x16
+#define GZIP_FC_WRAP                                     0x1e
+
+#define fc_is_compress(fc)  (((fc) & 0x10) == 0)
+#define fc_has_count(fc)    (fc_is_compress(fc) && (((fc) & 0x4) != 0))
+
+/* CSB.CC Error codes */
+
+#define ERR_NX_OK             0
+#define ERR_NX_ALIGNMENT      1
+#define ERR_NX_OPOVERLAP      2
+#define ERR_NX_DATA_LENGTH    3
+#define ERR_NX_TRANSLATION    5
+#define ERR_NX_PROTECTION     6
+#define ERR_NX_EXTERNAL_UE7   7
+#define ERR_NX_INVALID_OP     8
+#define ERR_NX_PRIVILEGE      9
+#define ERR_NX_INTERNAL_UE   10
+#define ERR_NX_EXTERN_UE_WR  12
+#define ERR_NX_TARGET_SPACE  13
+#define ERR_NX_EXCESSIVE_DDE 14
+#define ERR_NX_TRANSL_WR     15
+#define ERR_NX_PROTECT_WR    16
+#define ERR_NX_SUBFUNCTION   17
+#define ERR_NX_FUNC_ABORT    18
+#define ERR_NX_BYTE_MAX      19
+#define ERR_NX_CORRUPT_CRB   20
+#define ERR_NX_INVALID_CRB   21
+#define ERR_NX_INVALID_DDE   30
+#define ERR_NX_SEGMENTED_DDL 31
+#define ERR_NX_DDE_OVERFLOW  33
+#define ERR_NX_TPBC_GT_SPBC  64
+#define ERR_NX_MISSING_CODE  66
+#define ERR_NX_INVALID_DIST  67
+#define ERR_NX_INVALID_DHT   68
+#define ERR_NX_EXTERNAL_UE90 90
+#define ERR_NX_WDOG_TIMER   224
+#define ERR_NX_AT_FAULT     250
+#define ERR_NX_INTR_SERVER  252
+#define ERR_NX_UE253        253
+#define ERR_NX_NO_HW        254
+#define ERR_NX_HUNG_OP      255
+#define ERR_NX_END          256
+
+/* initial values for non-resume operations */
+#define INIT_CRC   0  /* crc32(0L, Z_NULL, 0) */
+#define INIT_ADLER 1  /* adler32(0L, Z_NULL, 0)  adler is initialized to 1 */
+
+/* prototypes */
+int nxu_submit_job(struct nx_gzip_crb_cpb_t *c, void *handle);
+
+extern void nxu_sigsegv_handler(int sig, siginfo_t *info, void *ctx);
+extern int nxu_touch_pages(void *buf, long buf_len, long page_len, int wr);
+
+/* caller supplies a print buffer 4*sizeof(crb) */
+
+char *nx_crb_str(struct nx_gzip_crb_t *crb, char *prbuf);
+char *nx_cpb_str(struct nx_gzip_cpb_t *cpb, char *prbuf);
+char *nx_prt_hex(void *cp, int sz, char *prbuf);
+char *nx_lzcount_str(struct nx_gzip_cpb_t *cpb, char *prbuf);
+char *nx_strerror(int e);
+
+#ifdef NX_SIM
+#include <stdio.h>
+int nx_sim_init(void *ctx);
+int nx_sim_end(void *ctx);
+int nxu_run_sim_job(struct nx_gzip_crb_cpb_t *c, void *ctx);
+#endif /* NX_SIM */
+
+/* Deflate stream manipulation */
+
+#define set_final_bit(x)	(x |= (unsigned char)1)
+#define clr_final_bit(x)	(x &= ~(unsigned char)1)
+
+#define append_empty_fh_blk(p, b) do { *(p) = (2 | (1&(b))); *((p)+1) = 0; \
+					} while (0)
+/* append 10 bits 0000001b 00...... ;
+ * assumes appending starts on a byte boundary; b is the final bit.
+ */
+
+
+#ifdef NX_842
+
+/* 842 Engine */
+
+struct nx_eft_crb_t {
+	union {                   /* byte[0:3]   */
+		uint32_t eft_fc;      /* bits[29-31] */
+	};
+	uint32_t reserved1;       /* byte[4:7]   */
+	union {
+		uint64_t csb_address; /* byte[8:15]  */
+		struct {
+			uint32_t reserved2;
+			union {
+				uint32_t crb_c;
+				/* c==0 no ccb defined */
+
+				uint32_t crb_at;
+				/* at==0 address type is ignored;
+				 * all addrs effective assumed.
+				 */
+
+			};
+		};
+	};
+	struct nx_dde_t source_dde;           /* byte[16:31] */
+	struct nx_dde_t target_dde;           /* byte[32:47] */
+	struct nx_ccb_t ccb;                  /* byte[48:63] */
+	union {
+		union nx_qw_t reserved64[3];     /* byte[64:96] */
+	};
+	struct nx_csb_t csb;
+} __aligned(128);
+
+/* 842 CRB */
+
+#define EFT_FC_MASK                 size_mask(3)
+#define EFT_FC_OFFSET               31
+#define EFT_FC_COMPRESS             0x0
+#define EFT_FC_COMPRESS_WITH_CRC    0x1
+#define EFT_FC_DECOMPRESS           0x2
+#define EFT_FC_DECOMPRESS_WITH_CRC  0x3
+#define EFT_FC_BLK_DATA_MOVE        0x4
+#endif /* NX_842 */
+
+#endif /* _NXU_H */
diff --git a/tools/testing/selftests/powerpc/nx-gzip/include/vas-api.h b/tools/testing/selftests/powerpc/nx-gzip/include/vas-api.h
new file mode 120000
index 000000000000..77fb4c7236d0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/include/vas-api.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/uapi/asm/vas-api.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/nx-gzip/nx-gzip-test.sh b/tools/testing/selftests/powerpc/nx-gzip/nx-gzip-test.sh
new file mode 100755
index 000000000000..c7b46c5fd7b3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/nx-gzip-test.sh
@@ -0,0 +1,46 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+if [[ ! -w /dev/crypto/nx-gzip ]]; then
+	echo "Can't access /dev/crypto/nx-gzip, skipping"
+	echo "skip: $0"
+	exit 4
+fi
+
+set -e
+
+function cleanup
+{
+	rm -f nx-tempfile*
+}
+
+trap cleanup EXIT
+
+function test_sizes
+{
+	local n=$1
+	local fname="nx-tempfile.$n"
+
+	for size in 4K 64K 1M 64M
+	do
+		echo "Testing $size ($n) ..."
+		dd if=/dev/urandom of=$fname bs=$size count=1
+		./gzfht_test $fname
+		./gunz_test ${fname}.nx.gz
+	done
+}
+
+echo "Doing basic test of different sizes ..."
+test_sizes 0
+
+echo "Running tests in parallel ..."
+for i in {1..16}
+do
+	test_sizes $i &
+done
+
+wait
+
+echo "OK"
+
+exit 0
diff --git a/tools/testing/selftests/powerpc/nx-gzip/settings b/tools/testing/selftests/powerpc/nx-gzip/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/nx-gzip/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/papr_attributes/.gitignore b/tools/testing/selftests/powerpc/papr_attributes/.gitignore
new file mode 100644
index 000000000000..d5f42b6d9e99
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_attributes/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+attr_test
diff --git a/tools/testing/selftests/powerpc/papr_attributes/Makefile b/tools/testing/selftests/powerpc/papr_attributes/Makefile
new file mode 100644
index 000000000000..406429499022
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_attributes/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := attr_test
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/papr_attributes/attr_test.c b/tools/testing/selftests/powerpc/papr_attributes/attr_test.c
new file mode 100644
index 000000000000..9b655be641c9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_attributes/attr_test.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PAPR Energy attributes sniff test
+ * This checks if the papr folders and contents are populated relating to
+ * the energy and frequency attributes
+ *
+ * Copyright 2022, Pratik Rajesh Sampat, IBM Corp.
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#include "utils.h"
+
+enum energy_freq_attrs {
+	POWER_PERFORMANCE_MODE = 1,
+	IDLE_POWER_SAVER_STATUS = 2,
+	MIN_FREQ = 3,
+	STAT_FREQ = 4,
+	MAX_FREQ = 6,
+	PROC_FOLDING_STATUS = 8
+};
+
+enum type {
+	INVALID,
+	STR_VAL,
+	NUM_VAL
+};
+
+static int value_type(int id)
+{
+	int val_type;
+
+	switch (id) {
+	case POWER_PERFORMANCE_MODE:
+	case IDLE_POWER_SAVER_STATUS:
+		val_type = STR_VAL;
+		break;
+	case MIN_FREQ:
+	case STAT_FREQ:
+	case MAX_FREQ:
+	case PROC_FOLDING_STATUS:
+		val_type = NUM_VAL;
+		break;
+	default:
+		val_type = INVALID;
+	}
+
+	return val_type;
+}
+
+static int verify_energy_info(void)
+{
+	const char *path = "/sys/firmware/papr/energy_scale_info";
+	struct dirent *entry;
+	struct stat s;
+	DIR *dirp;
+
+	errno = 0;
+	if (stat(path, &s)) {
+		SKIP_IF(errno == ENOENT);
+		FAIL_IF(errno);
+	}
+
+	FAIL_IF(!S_ISDIR(s.st_mode));
+
+	dirp = opendir(path);
+
+	while ((entry = readdir(dirp)) != NULL) {
+		char file_name[64];
+		int id, attr_type;
+		FILE *f;
+
+		if (strcmp(entry->d_name, ".") == 0 ||
+		    strcmp(entry->d_name, "..") == 0)
+			continue;
+
+		id = atoi(entry->d_name);
+		attr_type = value_type(id);
+		FAIL_IF(attr_type == INVALID);
+
+		/* Check if the files exist and have data in them */
+		sprintf(file_name, "%s/%d/desc", path, id);
+		f = fopen(file_name, "r");
+		FAIL_IF(!f);
+		FAIL_IF(fgetc(f) == EOF);
+
+		sprintf(file_name, "%s/%d/value", path, id);
+		f = fopen(file_name, "r");
+		FAIL_IF(!f);
+		FAIL_IF(fgetc(f) == EOF);
+
+		if (attr_type == STR_VAL) {
+			sprintf(file_name, "%s/%d/value_desc", path, id);
+			f = fopen(file_name, "r");
+			FAIL_IF(!f);
+			FAIL_IF(fgetc(f) == EOF);
+		}
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(verify_energy_info, "papr_attributes");
+}
diff --git a/tools/testing/selftests/powerpc/papr_attributes/settings b/tools/testing/selftests/powerpc/papr_attributes/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_attributes/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/papr_sysparm/.gitignore b/tools/testing/selftests/powerpc/papr_sysparm/.gitignore
new file mode 100644
index 000000000000..f2a69bf59d40
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_sysparm/.gitignore
@@ -0,0 +1 @@
+/papr_sysparm
diff --git a/tools/testing/selftests/powerpc/papr_sysparm/Makefile b/tools/testing/selftests/powerpc/papr_sysparm/Makefile
new file mode 100644
index 000000000000..fed4f2414dbf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_sysparm/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+noarg:
+	$(MAKE) -C ../
+
+TEST_GEN_PROGS := papr_sysparm
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
+
+$(OUTPUT)/papr_sysparm: CFLAGS += $(KHDR_INCLUDES)
diff --git a/tools/testing/selftests/powerpc/papr_sysparm/papr_sysparm.c b/tools/testing/selftests/powerpc/papr_sysparm/papr_sysparm.c
new file mode 100644
index 000000000000..f56c15a11e2f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_sysparm/papr_sysparm.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <asm/papr-sysparm.h>
+
+#include "utils.h"
+
+#define DEVPATH "/dev/papr-sysparm"
+
+static int open_close(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int get_splpar(void)
+{
+	struct papr_sysparm_io_block sp = {
+		.parameter = 20, // SPLPAR characteristics
+	};
+	const int devfd = open(DEVPATH, O_RDONLY);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+	FAIL_IF(ioctl(devfd, PAPR_SYSPARM_IOC_GET, &sp) != 0);
+	FAIL_IF(sp.length == 0);
+	FAIL_IF(sp.length > sizeof(sp.data));
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int get_bad_parameter(void)
+{
+	struct papr_sysparm_io_block sp = {
+		.parameter = UINT32_MAX, // there are only ~60 specified parameters
+	};
+	const int devfd = open(DEVPATH, O_RDONLY);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	// Ensure expected error
+	FAIL_IF(ioctl(devfd, PAPR_SYSPARM_IOC_GET, &sp) != -1);
+	FAIL_IF(errno != EOPNOTSUPP);
+
+	// Ensure the buffer is unchanged
+	FAIL_IF(sp.length != 0);
+	for (size_t i = 0; i < ARRAY_SIZE(sp.data); ++i)
+		FAIL_IF(sp.data[i] != 0);
+
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int check_efault_common(unsigned long cmd)
+{
+	const int devfd = open(DEVPATH, O_RDWR);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	// Ensure expected error
+	FAIL_IF(ioctl(devfd, cmd, NULL) != -1);
+	FAIL_IF(errno != EFAULT);
+
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int check_efault_get(void)
+{
+	return check_efault_common(PAPR_SYSPARM_IOC_GET);
+}
+
+static int check_efault_set(void)
+{
+	return check_efault_common(PAPR_SYSPARM_IOC_SET);
+}
+
+static int set_hmc0(void)
+{
+	struct papr_sysparm_io_block sp = {
+		.parameter = 0, // HMC0, not a settable parameter
+	};
+	const int devfd = open(DEVPATH, O_RDWR);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	// Ensure expected error
+	FAIL_IF(ioctl(devfd, PAPR_SYSPARM_IOC_SET, &sp) != -1);
+	SKIP_IF_MSG(errno == EOPNOTSUPP, "operation not supported");
+	FAIL_IF(errno != EPERM);
+
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int set_with_ro_fd(void)
+{
+	struct papr_sysparm_io_block sp = {
+		.parameter = 0, // HMC0, not a settable parameter.
+	};
+	const int devfd = open(DEVPATH, O_RDONLY);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	// Ensure expected error
+	FAIL_IF(ioctl(devfd, PAPR_SYSPARM_IOC_SET, &sp) != -1);
+	SKIP_IF_MSG(errno == EOPNOTSUPP, "operation not supported");
+
+	// HMC0 isn't a settable parameter and we would normally
+	// expect to get EPERM on attempts to modify it. However, when
+	// the file is open read-only, we expect the driver to prevent
+	// the attempt with a distinct error.
+	FAIL_IF(errno != EBADF);
+
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+struct sysparm_test {
+	int (*function)(void);
+	const char *description;
+};
+
+static const struct sysparm_test sysparm_tests[] = {
+	{
+		.function = open_close,
+		.description = "open and close " DEVPATH " without issuing commands",
+	},
+	{
+		.function = get_splpar,
+		.description = "retrieve SPLPAR characteristics",
+	},
+	{
+		.function = get_bad_parameter,
+		.description = "verify EOPNOTSUPP for known-bad parameter",
+	},
+	{
+		.function = check_efault_get,
+		.description = "PAPR_SYSPARM_IOC_GET returns EFAULT on bad address",
+	},
+	{
+		.function = check_efault_set,
+		.description = "PAPR_SYSPARM_IOC_SET returns EFAULT on bad address",
+	},
+	{
+		.function = set_hmc0,
+		.description = "ensure EPERM on attempt to update HMC0",
+	},
+	{
+		.function = set_with_ro_fd,
+		.description = "PAPR_IOC_SYSPARM_SET returns EACCES on read-only fd",
+	},
+};
+
+int main(void)
+{
+	size_t fails = 0;
+
+	for (size_t i = 0; i < ARRAY_SIZE(sysparm_tests); ++i) {
+		const struct sysparm_test *t = &sysparm_tests[i];
+
+		if (test_harness(t->function, t->description))
+			++fails;
+	}
+
+	return fails == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
diff --git a/tools/testing/selftests/powerpc/papr_sysparm/settings b/tools/testing/selftests/powerpc/papr_sysparm/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_sysparm/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/papr_vpd/.gitignore b/tools/testing/selftests/powerpc/papr_vpd/.gitignore
new file mode 100644
index 000000000000..49285031a656
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_vpd/.gitignore
@@ -0,0 +1 @@
+/papr_vpd
diff --git a/tools/testing/selftests/powerpc/papr_vpd/Makefile b/tools/testing/selftests/powerpc/papr_vpd/Makefile
new file mode 100644
index 000000000000..b09852e40882
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_vpd/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+noarg:
+	$(MAKE) -C ../
+
+TEST_GEN_PROGS := papr_vpd
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
+
+$(OUTPUT)/papr_vpd: CFLAGS += $(KHDR_INCLUDES)
diff --git a/tools/testing/selftests/powerpc/papr_vpd/papr_vpd.c b/tools/testing/selftests/powerpc/papr_vpd/papr_vpd.c
new file mode 100644
index 000000000000..d6f99eb9be65
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_vpd/papr_vpd.c
@@ -0,0 +1,352 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+
+#include <asm/papr-vpd.h>
+
+#include "utils.h"
+
+#define DEVPATH "/dev/papr-vpd"
+
+static int dev_papr_vpd_open_close(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+	FAIL_IF(close(devfd) != 0);
+
+	return 0;
+}
+
+static int dev_papr_vpd_get_handle_all(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	struct papr_location_code lc = { .str = "", };
+	off_t size;
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(errno != 0);
+	FAIL_IF(fd < 0);
+
+	FAIL_IF(close(devfd) != 0);
+
+	size = lseek(fd, 0, SEEK_END);
+	FAIL_IF(size <= 0);
+
+	void *buf = malloc((size_t)size);
+	FAIL_IF(!buf);
+
+	ssize_t consumed = pread(fd, buf, size, 0);
+	FAIL_IF(consumed != size);
+
+	/* Ensure EOF */
+	FAIL_IF(read(fd, buf, size) != 0);
+	FAIL_IF(close(fd));
+
+	/* Verify that the buffer looks like VPD */
+	static const char needle[] = "System VPD";
+	FAIL_IF(!memmem(buf, size, needle, strlen(needle)));
+
+	return 0;
+}
+
+static int dev_papr_vpd_get_handle_byte_at_a_time(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	struct papr_location_code lc = { .str = "", };
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(errno != 0);
+	FAIL_IF(fd < 0);
+
+	FAIL_IF(close(devfd) != 0);
+
+	size_t consumed = 0;
+	while (1) {
+		ssize_t res;
+		char c;
+
+		errno = 0;
+		res = read(fd, &c, sizeof(c));
+		FAIL_IF(res > sizeof(c));
+		FAIL_IF(res < 0);
+		FAIL_IF(errno != 0);
+		consumed += res;
+		if (res == 0)
+			break;
+	}
+
+	FAIL_IF(consumed != lseek(fd, 0, SEEK_END));
+
+	FAIL_IF(close(fd));
+
+	return 0;
+}
+
+
+static int dev_papr_vpd_unterm_loc_code(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	struct papr_location_code lc = {};
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	/*
+	 * Place a non-null byte in every element of loc_code; the
+	 * driver should reject this input.
+	 */
+	memset(lc.str, 'x', ARRAY_SIZE(lc.str));
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(fd != -1);
+	FAIL_IF(errno != EINVAL);
+
+	FAIL_IF(close(devfd) != 0);
+	return 0;
+}
+
+static int dev_papr_vpd_null_handle(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	int rc;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	rc = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, NULL);
+	FAIL_IF(rc != -1);
+	FAIL_IF(errno != EFAULT);
+
+	FAIL_IF(close(devfd) != 0);
+	return 0;
+}
+
+static int papr_vpd_close_handle_without_reading(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	struct papr_location_code lc = { .str = "", };
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(errno != 0);
+	FAIL_IF(fd < 0);
+
+	/* close the handle without reading it */
+	FAIL_IF(close(fd) != 0);
+
+	FAIL_IF(close(devfd) != 0);
+	return 0;
+}
+
+static int papr_vpd_reread(void)
+{
+	const int devfd = open(DEVPATH, O_RDONLY);
+	struct papr_location_code lc = { .str = "", };
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(errno != 0);
+	FAIL_IF(fd < 0);
+
+	FAIL_IF(close(devfd) != 0);
+
+	const off_t size = lseek(fd, 0, SEEK_END);
+	FAIL_IF(size <= 0);
+
+	char *bufs[2];
+
+	for (size_t i = 0; i < ARRAY_SIZE(bufs); ++i) {
+		bufs[i] = malloc(size);
+		FAIL_IF(!bufs[i]);
+		ssize_t consumed = pread(fd, bufs[i], size, 0);
+		FAIL_IF(consumed != size);
+	}
+
+	FAIL_IF(memcmp(bufs[0], bufs[1], size));
+
+	FAIL_IF(close(fd) != 0);
+
+	return 0;
+}
+
+static int get_system_loc_code(struct papr_location_code *lc)
+{
+	static const char system_id_path[] = "/sys/firmware/devicetree/base/system-id";
+	static const char model_path[] = "/sys/firmware/devicetree/base/model";
+	char *system_id;
+	char *model;
+	int err = -1;
+
+	if (read_file_alloc(model_path, &model, NULL))
+		return err;
+
+	if (read_file_alloc(system_id_path, &system_id, NULL))
+		goto free_model;
+
+	char *mtm;
+	int sscanf_ret = sscanf(model, "IBM,%ms", &mtm);
+	if (sscanf_ret != 1)
+		goto free_system_id;
+
+	char *plant_and_seq;
+	if (sscanf(system_id, "IBM,%*c%*c%ms", &plant_and_seq) != 1)
+		goto free_mtm;
+	/*
+	 * Replace - with . to build location code.
+	 */
+	char *sep = strchr(mtm, '-');
+	if (!sep)
+		goto free_mtm;
+	else
+		*sep = '.';
+
+	snprintf(lc->str, sizeof(lc->str),
+		 "U%s.%s", mtm, plant_and_seq);
+	err = 0;
+
+	free(plant_and_seq);
+free_mtm:
+	free(mtm);
+free_system_id:
+	free(system_id);
+free_model:
+	free(model);
+	return err;
+}
+
+static int papr_vpd_system_loc_code(void)
+{
+	struct papr_location_code lc;
+	const int devfd = open(DEVPATH, O_RDONLY);
+	off_t size;
+	int fd;
+
+	SKIP_IF_MSG(devfd < 0 && errno == ENOENT,
+		    DEVPATH " not present");
+	SKIP_IF_MSG(get_system_loc_code(&lc),
+		    "Cannot determine system location code");
+
+	FAIL_IF(devfd < 0);
+
+	errno = 0;
+	fd = ioctl(devfd, PAPR_VPD_IOC_CREATE_HANDLE, &lc);
+	FAIL_IF(errno != 0);
+	FAIL_IF(fd < 0);
+
+	FAIL_IF(close(devfd) != 0);
+
+	size = lseek(fd, 0, SEEK_END);
+	FAIL_IF(size <= 0);
+
+	void *buf = malloc((size_t)size);
+	FAIL_IF(!buf);
+
+	ssize_t consumed = pread(fd, buf, size, 0);
+	FAIL_IF(consumed != size);
+
+	/* Ensure EOF */
+	FAIL_IF(read(fd, buf, size) != 0);
+	FAIL_IF(close(fd));
+
+	/* Verify that the buffer looks like VPD */
+	static const char needle[] = "System VPD";
+	FAIL_IF(!memmem(buf, size, needle, strlen(needle)));
+
+	return 0;
+}
+
+struct vpd_test {
+	int (*function)(void);
+	const char *description;
+};
+
+static const struct vpd_test vpd_tests[] = {
+	{
+		.function = dev_papr_vpd_open_close,
+		.description = "open/close " DEVPATH,
+	},
+	{
+		.function = dev_papr_vpd_unterm_loc_code,
+		.description = "ensure EINVAL on unterminated location code",
+	},
+	{
+		.function = dev_papr_vpd_null_handle,
+		.description = "ensure EFAULT on bad handle addr",
+	},
+	{
+		.function = dev_papr_vpd_get_handle_all,
+		.description = "get handle for all VPD"
+	},
+	{
+		.function = papr_vpd_close_handle_without_reading,
+		.description = "close handle without consuming VPD"
+	},
+	{
+		.function = dev_papr_vpd_get_handle_byte_at_a_time,
+		.description = "read all VPD one byte at a time"
+	},
+	{
+		.function = papr_vpd_reread,
+		.description = "ensure re-read yields same results"
+	},
+	{
+		.function = papr_vpd_system_loc_code,
+		.description = "get handle for system VPD"
+	},
+};
+
+int main(void)
+{
+	size_t fails = 0;
+
+	for (size_t i = 0; i < ARRAY_SIZE(vpd_tests); ++i) {
+		const struct vpd_test *t = &vpd_tests[i];
+
+		if (test_harness(t->function, t->description))
+			++fails;
+	}
+
+	return fails == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
+}
diff --git a/tools/testing/selftests/powerpc/papr_vpd/settings b/tools/testing/selftests/powerpc/papr_vpd/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/papr_vpd/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/pmu/.gitignore b/tools/testing/selftests/powerpc/pmu/.gitignore
index e748f336eed3..f69b1e2641a1 100644
--- a/tools/testing/selftests/powerpc/pmu/.gitignore
+++ b/tools/testing/selftests/powerpc/pmu/.gitignore
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
 count_instructions
 l3_bank_test
 per_event_excludes
+count_stcx_fail
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index a9099d9f8f39..7e9dbf3d0d09 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -1,42 +1,70 @@
+# SPDX-License-Identifier: GPL-2.0
 noarg:
 	$(MAKE) -C ../
 
-TEST_PROGS := count_instructions l3_bank_test per_event_excludes
-EXTRA_SOURCES := ../harness.c event.c lib.c
+TEST_GEN_PROGS := count_instructions count_stcx_fail l3_bank_test per_event_excludes
+EXTRA_SOURCES := ../harness.c event.c lib.c ../utils.c
 
-all: $(TEST_PROGS) ebb
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+SUB_DIRS := ebb sampling_tests event_code_tests
+
+all: $(TEST_GEN_PROGS) $(SUB_DIRS)
 
-$(TEST_PROGS): $(EXTRA_SOURCES)
+$(TEST_GEN_PROGS): $(EXTRA_SOURCES)
 
 # loop.S can only be built 64-bit
-count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
-	$(CC) $(CFLAGS) -m64 -o $@ $^
+$(OUTPUT)/count_instructions: CFLAGS += -m64
+$(OUTPUT)/count_instructions: loop.S count_instructions.c $(EXTRA_SOURCES)
+
+$(OUTPUT)/count_stcx_fail: CFLAGS += -m64
+$(OUTPUT)/count_stcx_fail: loop.S $(EXTRA_SOURCES)
 
-include ../../lib.mk
+
+$(OUTPUT)/per_event_excludes: ../utils.c
+
+$(SUB_DIRS):
+	BUILD_TARGET=$(OUTPUT)/$@; mkdir -p $$BUILD_TARGET; $(MAKE) OUTPUT=$$BUILD_TARGET -k -C $@ all
 
 DEFAULT_RUN_TESTS := $(RUN_TESTS)
 override define RUN_TESTS
 	$(DEFAULT_RUN_TESTS)
-	$(MAKE) -C ebb run_tests
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET; \
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests; \
+	done;
 endef
 
-DEFAULT_EMIT_TESTS := $(EMIT_TESTS)
-override define EMIT_TESTS
-	$(DEFAULT_EMIT_TESTS)
-	$(MAKE) -s -C ebb emit_tests
-endef
+emit_tests:
+	for TEST in $(TEST_GEN_PROGS); do \
+		BASENAME_TEST=`basename $$TEST`;	\
+		echo "$(COLLECTION):$$BASENAME_TEST";	\
+	done
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET; \
+		$(MAKE) OUTPUT=$$BUILD_TARGET COLLECTION=$(COLLECTION)/$$TARGET -s -C $$TARGET emit_tests; \
+	done;
 
 DEFAULT_INSTALL_RULE := $(INSTALL_RULE)
 override define INSTALL_RULE
 	$(DEFAULT_INSTALL_RULE)
-	$(MAKE) -C ebb install
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET; \
+		$(MAKE) OUTPUT=$$BUILD_TARGET INSTALL_PATH=$$INSTALL_PATH/$$TARGET -C $$TARGET install; \
+	done;
 endef
 
-clean:
-	rm -f $(TEST_PROGS) loop.o
-	$(MAKE) -C ebb clean
+DEFAULT_CLEAN := $(CLEAN)
+override define CLEAN
+	$(DEFAULT_CLEAN)
+	$(RM) $(TEST_GEN_PROGS) $(OUTPUT)/loop.o
+	+@for TARGET in $(SUB_DIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$TARGET; \
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$TARGET clean; \
+	done;
+endef
 
-ebb:
-	$(MAKE) -k -C $@ all
 
-.PHONY: all run_tests clean ebb
+.PHONY: all run_tests ebb sampling_tests event_code_tests emit_tests
diff --git a/tools/testing/selftests/powerpc/pmu/branch_loops.S b/tools/testing/selftests/powerpc/pmu/branch_loops.S
new file mode 100644
index 000000000000..de758dd3cecf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/branch_loops.S
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <ppc-asm.h>
+
+	.text
+
+#define ITER_SHIFT	31
+
+FUNC_START(indirect_branch_loop)
+	li	r3, 1
+	sldi	r3, r3, ITER_SHIFT
+
+1:	cmpdi	r3, 0
+	beqlr
+
+	addi	r3, r3, -1
+
+	ld	r4, 2f@got(%r2)
+	mtctr	r4
+	bctr
+
+	.balign 32
+2:	b	1b
+
+FUNC_END(indirect_branch_loop)
diff --git a/tools/testing/selftests/powerpc/pmu/count_instructions.c b/tools/testing/selftests/powerpc/pmu/count_instructions.c
index 4622117b24c0..a3984ef1e96a 100644
--- a/tools/testing/selftests/powerpc/pmu/count_instructions.c
+++ b/tools/testing/selftests/powerpc/pmu/count_instructions.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE
diff --git a/tools/testing/selftests/powerpc/pmu/count_stcx_fail.c b/tools/testing/selftests/powerpc/pmu/count_stcx_fail.c
new file mode 100644
index 000000000000..d8dd9a9c6c1b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/count_stcx_fail.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+#include <sys/prctl.h>
+
+#include "event.h"
+#include "utils.h"
+#include "lib.h"
+
+extern void thirty_two_instruction_loop_with_ll_sc(u64 loops, u64 *ll_sc_target);
+
+static void setup_event(struct event *e, u64 config, int type, char *name)
+{
+	event_init_opts(e, config, type, name);
+
+	e->attr.disabled = 1;
+	e->attr.exclude_kernel = 1;
+	e->attr.exclude_hv = 1;
+	e->attr.exclude_idle = 1;
+}
+
+static int do_count_loop(struct event *events, u64 instructions,
+			 u64 overhead, bool report)
+{
+	s64 difference, expected;
+	double percentage;
+	u64 dummy;
+
+	prctl(PR_TASK_PERF_EVENTS_ENABLE);
+
+	/* Run for 1M instructions */
+	thirty_two_instruction_loop_with_ll_sc(instructions >> 5, &dummy);
+
+	prctl(PR_TASK_PERF_EVENTS_DISABLE);
+
+	event_read(&events[0]);
+	event_read(&events[1]);
+	event_read(&events[2]);
+
+	expected = instructions + overhead + (events[2].result.value * 10);
+	difference = events[0].result.value - expected;
+	percentage = (double)difference / events[0].result.value * 100;
+
+	if (report) {
+		printf("-----\n");
+		event_report(&events[0]);
+		event_report(&events[1]);
+		event_report(&events[2]);
+
+		printf("Looped for %llu instructions, overhead %llu\n", instructions, overhead);
+		printf("Expected %llu\n", expected);
+		printf("Actual   %llu\n", events[0].result.value);
+		printf("Delta    %lld, %f%%\n", difference, percentage);
+	}
+
+	event_reset(&events[0]);
+	event_reset(&events[1]);
+	event_reset(&events[2]);
+
+	if (difference < 0)
+		difference = -difference;
+
+	/* Tolerate a difference below 0.0001 % */
+	difference *= 10000 * 100;
+	if (difference / events[0].result.value)
+		return -1;
+
+	return 0;
+}
+
+/* Count how many instructions it takes to do a null loop */
+static u64 determine_overhead(struct event *events)
+{
+	u64 current, overhead;
+	int i;
+
+	do_count_loop(events, 0, 0, false);
+	overhead = events[0].result.value;
+
+	for (i = 0; i < 100; i++) {
+		do_count_loop(events, 0, 0, false);
+		current = events[0].result.value;
+		if (current < overhead) {
+			printf("Replacing overhead %llu with %llu\n", overhead, current);
+			overhead = current;
+		}
+	}
+
+	return overhead;
+}
+
+#define	PM_MRK_STCX_FAIL	0x03e158
+#define PM_STCX_FAIL	0x01e058
+
+static int test_body(void)
+{
+	struct event events[3];
+	u64 overhead;
+
+	// The STCX_FAIL event we use works on Power8 or later
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	setup_event(&events[0], PERF_COUNT_HW_INSTRUCTIONS, PERF_TYPE_HARDWARE, "instructions");
+	setup_event(&events[1], PERF_COUNT_HW_CPU_CYCLES, PERF_TYPE_HARDWARE, "cycles");
+	setup_event(&events[2], PM_STCX_FAIL, PERF_TYPE_RAW, "stcx_fail");
+
+	if (event_open(&events[0])) {
+		perror("perf_event_open");
+		return -1;
+	}
+
+	if (event_open_with_group(&events[1], events[0].fd)) {
+		perror("perf_event_open");
+		return -1;
+	}
+
+	if (event_open_with_group(&events[2], events[0].fd)) {
+		perror("perf_event_open");
+		return -1;
+	}
+
+	overhead = determine_overhead(events);
+	printf("Overhead of null loop: %llu instructions\n", overhead);
+
+	/* Run for 1Mi instructions */
+	FAIL_IF(do_count_loop(events, 1000000, overhead, true));
+
+	/* Run for 10Mi instructions */
+	FAIL_IF(do_count_loop(events, 10000000, overhead, true));
+
+	/* Run for 100Mi instructions */
+	FAIL_IF(do_count_loop(events, 100000000, overhead, true));
+
+	/* Run for 1Bi instructions */
+	FAIL_IF(do_count_loop(events, 1000000000, overhead, true));
+
+	/* Run for 16Bi instructions */
+	FAIL_IF(do_count_loop(events, 16000000000, overhead, true));
+
+	event_close(&events[0]);
+	event_close(&events[1]);
+
+	return 0;
+}
+
+static int count_ll_sc(void)
+{
+	return eat_cpu(test_body);
+}
+
+int main(void)
+{
+	return test_harness(count_ll_sc, "count_ll_sc");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/.gitignore b/tools/testing/selftests/powerpc/pmu/ebb/.gitignore
index 42bddbed8b64..64d8dfdac74a 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/.gitignore
+++ b/tools/testing/selftests/powerpc/pmu/ebb/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 reg_access_test
 event_attributes_test
 cycles_test
@@ -20,3 +21,4 @@ back_to_back_ebbs_test
 lost_exception_test
 no_handler_test
 cycles_with_mmcr2_test
+regs_access_pmccext_test
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index 5cdc9dbf2b27..1b39af7c10db 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -1,10 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+include ../../../../../build/Build.include
+
 noarg:
 	$(MAKE) -C ../../
 
-# The EBB handler is 64-bit code and everything links against it
-CFLAGS += -m64
-
-TEST_PROGS := reg_access_test event_attributes_test cycles_test	\
+TEST_GEN_PROGS := reg_access_test event_attributes_test cycles_test	\
 	 cycles_with_freeze_test pmc56_overflow_test		\
 	 ebb_vs_cpu_event_test cpu_event_vs_ebb_test		\
 	 cpu_event_pinned_vs_ebb_test task_event_vs_ebb_test	\
@@ -14,17 +14,25 @@ TEST_PROGS := reg_access_test event_attributes_test cycles_test	\
 	 fork_cleanup_test ebb_on_child_test			\
 	 ebb_on_willing_child_test back_to_back_ebbs_test	\
 	 lost_exception_test no_handler_test			\
-	 cycles_with_mmcr2_test
+	 cycles_with_mmcr2_test regs_access_pmccext_test
 
-all: $(TEST_PROGS)
+top_srcdir = ../../../../../..
+include ../../../lib.mk
+include ../../flags.mk
 
-$(TEST_PROGS): ../../harness.c ../event.c ../lib.c ebb.c ebb_handler.S trace.c busy_loop.S
+# The EBB handler is 64-bit code and everything links against it
+CFLAGS += -m64
 
-instruction_count_test: ../loop.S
+TMPOUT = $(OUTPUT)/TMPDIR/
+# Toolchains may build PIE by default which breaks the assembly
+no-pie-option := $(call try-run, echo 'int main() { return 0; }' | \
+        $(CC) -Werror $(KBUILD_CPPFLAGS) $(CC_OPTION_CFLAGS) -no-pie -x c - -o "$$TMP", -no-pie)
 
-lost_exception_test: ../lib.c
+LDFLAGS += $(no-pie-option)
 
-include ../../../lib.mk
+$(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c \
+	       ebb.c ebb_handler.S trace.c busy_loop.S
+
+$(OUTPUT)/instruction_count_test: ../loop.S
 
-clean:
-	rm -f $(TEST_PROGS)
+$(OUTPUT)/lost_exception_test: ../lib.c
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
index 66ea765c0e72..a26ac122c759 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/back_to_back_ebbs_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdbool.h>
@@ -63,6 +63,8 @@ int back_to_back_ebbs(void)
 {
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -89,8 +91,6 @@ int back_to_back_ebbs(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	event_close(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S b/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S
index c7e4093f1cd3..4866a3a76d22 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S
+++ b/tools/testing/selftests/powerpc/pmu/ebb/busy_loop.S
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <ppc-asm.h>
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
index 0f0423dba18b..ca9aeb0d8272 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/close_clears_pmcc_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -20,6 +20,8 @@ int close_clears_pmcc(void)
 {
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
index d3ed64d5d6c0..fab7f34d7ce1 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_pinned_vs_ebb_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -43,9 +43,10 @@ int cpu_event_pinned_vs_ebb(void)
 	int cpu, rc;
 	pid_t pid;
 
-	cpu = pick_online_cpu();
+	SKIP_IF(!ebb_is_supported());
+
+	cpu = bind_to_cpu(BIND_CPU_ANY);
 	FAIL_IF(cpu < 0);
-	FAIL_IF(bind_to_cpu(cpu));
 
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c
index 8b972c2aa392..7c54c262036e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cpu_event_vs_ebb_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -41,9 +41,10 @@ int cpu_event_vs_ebb(void)
 	int cpu, rc;
 	pid_t pid;
 
-	cpu = pick_online_cpu();
+	SKIP_IF(!ebb_is_supported());
+
+	cpu = bind_to_cpu(BIND_CPU_ANY);
 	FAIL_IF(cpu < 0);
-	FAIL_IF(bind_to_cpu(cpu));
 
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
index 8590fc1bfc0d..bb9f587fa76e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -16,6 +16,8 @@ int cycles(void)
 {
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -40,8 +42,6 @@ int cycles(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	event_close(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
index 754b3f2008d3..9ae795ce314e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_freeze_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -56,6 +56,8 @@ int cycles_with_freeze(void)
 	uint64_t val;
 	bool fc_cleared;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -97,8 +99,6 @@ int cycles_with_freeze(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	printf("EBBs while frozen %d\n", ebbs_while_frozen);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
index d43029b0800c..fc32187d483d 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/cycles_with_mmcr2_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -26,6 +26,8 @@ int cycles_with_mmcr2(void)
 	int i;
 	bool bad_mmcr2;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -48,6 +50,7 @@ int cycles_with_mmcr2(void)
 	expected[1] = MMCR2_EXPECTED_2;
 	i = 0;
 	bad_mmcr2 = false;
+	actual = 0;
 
 	/* Make sure we loop until we take at least one EBB */
 	while ((ebb_state.stats.ebb_count < 20 && !bad_mmcr2) ||
@@ -69,8 +72,6 @@ int cycles_with_mmcr2(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	event_close(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
index d7a72ce696b5..21537d6eb6b7 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE	/* For CPU_ZERO etc. */
@@ -15,7 +15,6 @@
 #include <sys/ioctl.h>
 
 #include "trace.h"
-#include "reg.h"
 #include "ebb.h"
 
 
@@ -319,6 +318,16 @@ void ebb_global_disable(void)
 	mb();
 }
 
+bool ebb_is_supported(void)
+{
+#ifdef PPC_FEATURE2_EBB
+	/* EBB requires at least POWER8 */
+	return have_hwcap2(PPC_FEATURE2_EBB);
+#else
+	return false;
+#endif
+}
+
 void event_ebb_init(struct event *e)
 {
 	e->attr.config |= (1ull << 63);
@@ -387,8 +396,6 @@ int ebb_child(union pipe read_pipe, union pipe write_pipe)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	event_close(&event);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
index e44eee5d97ca..2c803b5b48d6 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #ifndef _SELFTESTS_POWERPC_PMU_EBB_EBB_H
@@ -52,10 +52,9 @@ void standard_ebb_callee(void);
 int ebb_event_enable(struct event *e);
 void ebb_global_enable(void);
 void ebb_global_disable(void);
+bool ebb_is_supported(void);
 void ebb_freeze_pmcs(void);
 void ebb_unfreeze_pmcs(void);
-void event_ebb_init(struct event *e);
-void event_leader_ebb_init(struct event *e);
 int count_pmc(int pmc, uint32_t sample_period);
 void dump_ebb_state(void);
 void dump_summary_ebb_state(void);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_handler.S b/tools/testing/selftests/powerpc/pmu/ebb/ebb_handler.S
index 14274ea206e5..c170398de91a 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_handler.S
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_handler.S
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <ppc-asm.h>
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
index c45f948148e1..8980f054d8d9 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_child_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -47,6 +47,8 @@ int ebb_on_child(void)
 	struct event event;
 	pid_t pid;
 
+	SKIP_IF(!ebb_is_supported());
+
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
index 11acf1d55f8d..b208bf6ad58d 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_on_willing_child_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -38,8 +38,6 @@ static int victim_child(union pipe read_pipe, union pipe write_pipe)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	FAIL_IF(ebb_state.stats.ebb_count == 0);
@@ -54,6 +52,8 @@ int ebb_on_willing_child(void)
 	struct event event;
 	pid_t pid;
 
+	SKIP_IF(!ebb_is_supported());
+
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
index be4dd5a4e98e..d7064b54c64f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/ebb_vs_cpu_event_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -41,9 +41,10 @@ int ebb_vs_cpu_event(void)
 	int cpu, rc;
 	pid_t pid;
 
-	cpu = pick_online_cpu();
+	SKIP_IF(!ebb_is_supported());
+
+	cpu = bind_to_cpu(BIND_CPU_ANY);
 	FAIL_IF(cpu < 0);
-	FAIL_IF(bind_to_cpu(cpu));
 
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
index 7e78153f08eb..6e6dd0bce1f9 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/event_attributes_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -16,6 +16,8 @@ int event_attributes(void)
 {
 	struct event event, leader;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init(&event, 0x1001e);
 	event_leader_ebb_init(&event);
 	/* Expected to succeed */
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/fixed_instruction_loop.S b/tools/testing/selftests/powerpc/pmu/ebb/fixed_instruction_loop.S
deleted file mode 100644
index b866a0581d32..000000000000
--- a/tools/testing/selftests/powerpc/pmu/ebb/fixed_instruction_loop.S
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#include <ppc-asm.h>
-
-	.text
-
-FUNC_START(thirty_two_instruction_loop)
-	cmpwi	r3,0
-	beqlr
-	addi	r4,r3,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1
-	addi	r4,r4,1	# 28 addi's
-	subi	r3,r3,1
-	b	FUNC_NAME(thirty_two_instruction_loop)
-FUNC_END(thirty_two_instruction_loop)
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
index 9e7af6e76622..2b25b55452d9 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/fork_cleanup_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -11,7 +11,6 @@
 #include <sys/wait.h>
 #include <unistd.h>
 #include <setjmp.h>
-#include <signal.h>
 
 #include "ebb.h"
 
@@ -44,6 +43,8 @@ int fork_cleanup(void)
 {
 	pid_t pid;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
index f8190fa29592..eed338b18e11 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/instruction_count_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE
@@ -51,7 +51,7 @@ static int do_count_loop(struct event *event, uint64_t instructions,
 		printf("Looped for %lu instructions, overhead %lu\n", instructions, overhead);
 		printf("Expected %lu\n", expected);
 		printf("Actual   %llu\n", event->result.value);
-		printf("Error    %ld, %f%%\n", difference, percentage);
+		printf("Delta    %ld, %f%%\n", difference, percentage);
 		printf("Took %d EBBs\n", ebb_state.stats.ebb_count);
 	}
 
@@ -111,6 +111,8 @@ int instruction_count(void)
 	struct event event;
 	uint64_t overhead;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x400FA, "PM_RUN_INST_CMPL");
 	event_leader_ebb_init(&event);
 	event.attr.exclude_kernel = 1;
@@ -160,5 +162,6 @@ int instruction_count(void)
 
 int main(void)
 {
+	test_harness_set_timeout(300);
 	return test_harness(instruction_count, "instruction_count");
 }
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
index 0c9dd9b2e39d..ba2681a12cc7 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/lost_exception_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <sched.h>
@@ -23,6 +23,8 @@ static int test_body(void)
 	int i, orig_period, max_period;
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	/* We use PMC4 to make sure the kernel switches all counters correctly */
 	event_init_named(&event, 0x40002, "instructions");
 	event_leader_ebb_init(&event);
@@ -73,7 +75,6 @@ static int test_body(void)
 	ebb_freeze_pmcs();
 	ebb_global_disable();
 
-	count_pmc(4, sample_period);
 	mtspr(SPRN_PMC4, 0xdead);
 
 	dump_summary_ebb_state();
@@ -96,5 +97,6 @@ static int lost_exception(void)
 
 int main(void)
 {
+	test_harness_set_timeout(300);
 	return test_harness(lost_exception, "lost_exception");
 }
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
index 67d78af3284c..791d37ba327b 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_counter_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -18,6 +18,8 @@ int multi_counter(void)
 	struct event events[6];
 	int i, group_fd;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&events[0], 0x1001C, "PM_CMPLU_STALL_THRD");
 	event_init_named(&events[1], 0x2D016, "PM_CMPLU_STALL_FXU");
 	event_init_named(&events[2], 0x30006, "PM_CMPLU_STALL_OTHER_CMPL");
@@ -68,13 +70,6 @@ int multi_counter(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-	count_pmc(2, sample_period);
-	count_pmc(3, sample_period);
-	count_pmc(4, sample_period);
-	count_pmc(5, sample_period);
-	count_pmc(6, sample_period);
-
 	dump_ebb_state();
 
 	for (i = 0; i < 6; i++)
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
index b8dc371f9338..4ac22b2e774f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/multi_ebb_procs_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdbool.h>
@@ -61,8 +61,6 @@ static int cycles_child(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_summary_ebb_state();
 
 	event_close(&event);
@@ -77,11 +75,11 @@ static int cycles_child(void)
 int multi_ebb_procs(void)
 {
 	pid_t pids[NR_CHILDREN];
-	int cpu, rc, i;
+	int rc, i;
+
+	SKIP_IF(!ebb_is_supported());
 
-	cpu = pick_online_cpu();
-	FAIL_IF(cpu < 0);
-	FAIL_IF(bind_to_cpu(cpu));
+	FAIL_IF(bind_to_cpu(BIND_CPU_ANY) < 0);
 
 	for (i = 0; i < NR_CHILDREN; i++) {
 		pids[i] = fork();
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
index 2f9bf8edfa60..01e827c31169 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/no_handler_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -19,6 +19,8 @@ static int no_handler_test(void)
 	u64 val;
 	int i;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -48,8 +50,6 @@ static int no_handler_test(void)
 
 	event_close(&event);
 
-	dump_ebb_state();
-
 	/* The real test is that we never took an EBB at 0x0 */
 
 	return 0;
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
index 986500fd2131..2904c741e04e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/pmae_handling_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <sched.h>
@@ -58,6 +58,8 @@ static int test_body(void)
 {
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	event_init_named(&event, 0x1001e, "cycles");
 	event_leader_ebb_init(&event);
 
@@ -80,8 +82,6 @@ static int test_body(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(1, sample_period);
-
 	dump_ebb_state();
 
 	if (mmcr0_mismatch)
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
index a503fa70c950..b29f8ba22d1e 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -49,6 +49,8 @@ int pmc56_overflow(void)
 {
 	struct event event;
 
+	SKIP_IF(!ebb_is_supported());
+
 	/* Use PMC2 so we set PMCjCE, which enables PMC5/6 */
 	event_init(&event, 0x2001e);
 	event_leader_ebb_init(&event);
@@ -64,7 +66,7 @@ int pmc56_overflow(void)
 
 	FAIL_IF(ebb_event_enable(&event));
 
-	mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
+	mtspr(SPRN_PMC2, pmc_sample_period(sample_period));
 	mtspr(SPRN_PMC5, 0);
 	mtspr(SPRN_PMC6, 0);
 
@@ -74,8 +76,6 @@ int pmc56_overflow(void)
 	ebb_global_disable();
 	ebb_freeze_pmcs();
 
-	count_pmc(2, sample_period);
-
 	dump_ebb_state();
 
 	printf("PMC5/6 overflow %d\n", pmc56_overflowed);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/reg.h b/tools/testing/selftests/powerpc/pmu/ebb/reg.h
deleted file mode 100644
index 5921b0dfe2e9..000000000000
--- a/tools/testing/selftests/powerpc/pmu/ebb/reg.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#ifndef _SELFTESTS_POWERPC_REG_H
-#define _SELFTESTS_POWERPC_REG_H
-
-#define __stringify_1(x)        #x
-#define __stringify(x)          __stringify_1(x)
-
-#define mfspr(rn)       ({unsigned long rval; \
-                         asm volatile("mfspr %0," __stringify(rn) \
-                                 : "=r" (rval)); rval; })
-#define mtspr(rn, v)    asm volatile("mtspr " __stringify(rn) ",%0" : \
-                                    : "r" ((unsigned long)(v)) \
-                                    : "memory")
-
-#define mb()		asm volatile("sync" : : : "memory");
-
-#define SPRN_MMCR2     769
-#define SPRN_MMCRA     770
-#define SPRN_MMCR0     779
-#define   MMCR0_PMAO   0x00000080
-#define   MMCR0_PMAE   0x04000000
-#define   MMCR0_FC     0x80000000
-#define SPRN_EBBHR     804
-#define SPRN_EBBRR     805
-#define SPRN_BESCR     806     /* Branch event status & control register */
-#define SPRN_BESCRS    800     /* Branch event status & control set (1 bits set to 1) */
-#define SPRN_BESCRSU   801     /* Branch event status & control set upper */
-#define SPRN_BESCRR    802     /* Branch event status & control REset (1 bits set to 0) */
-#define SPRN_BESCRRU   803     /* Branch event status & control REset upper */
-
-#define BESCR_PMEO     0x1     /* PMU Event-based exception Occurred */
-#define BESCR_PME      (0x1ul << 32) /* PMU Event-based exception Enable */
-
-#define SPRN_PMC1      771
-#define SPRN_PMC2      772
-#define SPRN_PMC3      773
-#define SPRN_PMC4      774
-#define SPRN_PMC5      775
-#define SPRN_PMC6      776
-
-#define SPRN_SIAR      780
-#define SPRN_SDAR      781
-#define SPRN_SIER      768
-
-#endif /* _SELFTESTS_POWERPC_REG_H */
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
index 0cae66f659a3..bd1ace9a055d 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/reg_access_test.c
@@ -1,13 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
 #include <stdlib.h>
 
 #include "ebb.h"
-#include "reg.h"
 
 
 /*
@@ -18,6 +17,8 @@ int reg_access(void)
 {
 	uint64_t val, expected;
 
+	SKIP_IF(!ebb_is_supported());
+
 	expected = 0x8000000100000000ull;
 	mtspr(SPRN_BESCR, expected);
 	val = mfspr(SPRN_BESCR);
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/regs_access_pmccext_test.c b/tools/testing/selftests/powerpc/pmu/ebb/regs_access_pmccext_test.c
new file mode 100644
index 000000000000..1eda8e9932e8
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/ebb/regs_access_pmccext_test.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2021, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <setjmp.h>
+#include <signal.h>
+
+#include "ebb.h"
+
+
+/*
+ * Test that closing the EBB event clears MMCR0_PMCC and
+ * sets MMCR0_PMCCEXT preventing further read access to the
+ * group B PMU registers.
+ */
+
+static int regs_access_pmccext(void)
+{
+	struct event event;
+
+	SKIP_IF(!ebb_is_supported());
+
+	event_init_named(&event, 0x1001e, "cycles");
+	event_leader_ebb_init(&event);
+
+	FAIL_IF(event_open(&event));
+
+	ebb_enable_pmc_counting(1);
+	setup_ebb_handler(standard_ebb_callee);
+	ebb_global_enable();
+	FAIL_IF(ebb_event_enable(&event));
+
+	mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
+
+	while (ebb_state.stats.ebb_count < 1)
+		FAIL_IF(core_busy_loop());
+
+	ebb_global_disable();
+	event_close(&event);
+
+	FAIL_IF(ebb_state.stats.ebb_count == 0);
+
+	/*
+	 * For ISA v3.1, verify the test takes a SIGILL when reading
+	 * PMU regs after the event is closed. With the control bit
+	 * in MMCR0 (PMCCEXT) restricting access to group B PMU regs,
+	 * sigill is expected.
+	 */
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		FAIL_IF(catch_sigill(dump_ebb_state));
+	else
+		dump_ebb_state();
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(regs_access_pmccext, "regs_access_pmccext");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
index d56607e4ffab..0aa2aefd36d4 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_pinned_vs_ebb_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -42,6 +42,8 @@ int task_event_pinned_vs_ebb(void)
 	pid_t pid;
 	int rc;
 
+	SKIP_IF(!ebb_is_supported());
+
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
index eba32196dbbf..3e9d95ad9dfe 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/task_event_vs_ebb_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <signal.h>
@@ -40,6 +40,8 @@ int task_event_vs_ebb(void)
 	pid_t pid;
 	int rc;
 
+	SKIP_IF(!ebb_is_supported());
+
 	FAIL_IF(pipe(read_pipe.fds) == -1);
 	FAIL_IF(pipe(write_pipe.fds) == -1);
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/trace.c b/tools/testing/selftests/powerpc/pmu/ebb/trace.c
index 251e66ab2aa7..0c59f66a6fb2 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/trace.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/trace.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <errno.h>
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/trace.h b/tools/testing/selftests/powerpc/pmu/ebb/trace.h
index 926458e28c8b..da2a3be5441f 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/trace.h
+++ b/tools/testing/selftests/powerpc/pmu/ebb/trace.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #ifndef _SELFTESTS_POWERPC_PMU_EBB_TRACE_H
@@ -18,7 +18,7 @@ struct trace_entry
 {
 	u8 type;
 	u8 length;
-	u8 data[0];
+	u8 data[];
 };
 
 struct trace_buffer
@@ -26,7 +26,7 @@ struct trace_buffer
 	u64  size;
 	bool overflow;
 	void *tail;
-	u8   data[0];
+	u8   data[];
 };
 
 struct trace_buffer *trace_buffer_allocate(u64 size);
diff --git a/tools/testing/selftests/powerpc/pmu/event.c b/tools/testing/selftests/powerpc/pmu/event.c
index 184b36807d48..0c1c1bdba081 100644
--- a/tools/testing/selftests/powerpc/pmu/event.c
+++ b/tools/testing/selftests/powerpc/pmu/event.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE
@@ -8,6 +8,7 @@
 #include <sys/syscall.h>
 #include <string.h>
 #include <stdio.h>
+#include <stdbool.h>
 #include <sys/ioctl.h>
 
 #include "event.h"
@@ -20,7 +21,8 @@ int perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu,
 			   group_fd, flags);
 }
 
-void event_init_opts(struct event *e, u64 config, int type, char *name)
+static void  __event_init_opts(struct event *e, u64 config,
+			       int type, char *name, bool sampling)
 {
 	memset(e, 0, sizeof(*e));
 
@@ -32,6 +34,16 @@ void event_init_opts(struct event *e, u64 config, int type, char *name)
 	/* This has to match the structure layout in the header */
 	e->attr.read_format = PERF_FORMAT_TOTAL_TIME_ENABLED | \
 				  PERF_FORMAT_TOTAL_TIME_RUNNING;
+	if (sampling) {
+		e->attr.sample_period = 1000;
+		e->attr.sample_type = PERF_SAMPLE_REGS_INTR;
+		e->attr.disabled = 1;
+	}
+}
+
+void event_init_opts(struct event *e, u64 config, int type, char *name)
+{
+	__event_init_opts(e, config, type, name, false);
 }
 
 void event_init_named(struct event *e, u64 config, char *name)
@@ -44,6 +56,11 @@ void event_init(struct event *e, u64 config)
 	event_init_opts(e, config, PERF_TYPE_RAW, "event");
 }
 
+void event_init_sampling(struct event *e, u64 config)
+{
+	__event_init_opts(e, config, PERF_TYPE_RAW, "event", true);
+}
+
 #define PERF_CURRENT_PID	0
 #define PERF_NO_PID		-1
 #define PERF_NO_CPU		-1
diff --git a/tools/testing/selftests/powerpc/pmu/event.h b/tools/testing/selftests/powerpc/pmu/event.h
index a0ea6b1eef73..51aad0b6d9ad 100644
--- a/tools/testing/selftests/powerpc/pmu/event.h
+++ b/tools/testing/selftests/powerpc/pmu/event.h
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #ifndef _SELFTESTS_POWERPC_PMU_EVENT_H
@@ -22,11 +22,17 @@ struct event {
 		u64 running;
 		u64 enabled;
 	} result;
+	/*
+	 * mmap buffer used while recording sample.
+	 * Accessed as "struct perf_event_mmap_page"
+	 */
+	void *mmap_buffer;
 };
 
 void event_init(struct event *e, u64 config);
 void event_init_named(struct event *e, u64 config, char *name);
 void event_init_opts(struct event *e, u64 config, int type, char *name);
+void event_init_sampling(struct event *e, u64 config);
 int event_open_with_options(struct event *e, pid_t pid, int cpu, int group_fd);
 int event_open_with_group(struct event *e, int group_fd);
 int event_open_with_pid(struct event *e, pid_t pid);
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/.gitignore b/tools/testing/selftests/powerpc/pmu/event_code_tests/.gitignore
new file mode 100644
index 000000000000..5710683da525
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/.gitignore
@@ -0,0 +1,20 @@
+blacklisted_events_test
+event_alternatives_tests_p10
+event_alternatives_tests_p9
+generic_events_valid_test
+group_constraint_cache_test
+group_constraint_l2l3_sel_test
+group_constraint_mmcra_sample_test
+group_constraint_pmc56_test
+group_constraint_pmc_count_test
+group_constraint_radix_scope_qual_test
+group_constraint_repeat_test
+group_constraint_thresh_cmp_test
+group_constraint_thresh_ctl_test
+group_constraint_thresh_sel_test
+group_constraint_unit_test
+group_pmc56_exclude_constraints_test
+hw_cache_event_type_test
+invalid_event_code_test
+reserved_bits_mmcra_sample_elig_mode_test
+reserved_bits_mmcra_thresh_ctl_test
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
new file mode 100644
index 000000000000..fdb080b3fa65
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/Makefile
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := group_constraint_pmc56_test group_pmc56_exclude_constraints_test group_constraint_pmc_count_test \
+	group_constraint_repeat_test group_constraint_radix_scope_qual_test reserved_bits_mmcra_sample_elig_mode_test \
+	group_constraint_mmcra_sample_test invalid_event_code_test reserved_bits_mmcra_thresh_ctl_test \
+	blacklisted_events_test event_alternatives_tests_p9 event_alternatives_tests_p10 generic_events_valid_test \
+	group_constraint_l2l3_sel_test group_constraint_cache_test group_constraint_thresh_cmp_test \
+	group_constraint_unit_test group_constraint_thresh_ctl_test group_constraint_thresh_sel_test \
+	hw_cache_event_type_test
+
+top_srcdir = ../../../../../..
+include ../../../lib.mk
+include ../../flags.mk
+
+CFLAGS += -m64
+
+$(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c ../sampling_tests/misc.h ../sampling_tests/misc.c
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/blacklisted_events_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/blacklisted_events_test.c
new file mode 100644
index 000000000000..fafeff19cb34
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/blacklisted_events_test.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <limits.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+#define PM_DTLB_MISS_16G 0x1c058
+#define PM_DERAT_MISS_2M 0x1c05a
+#define PM_DTLB_MISS_2M 0x1c05c
+#define PM_MRK_DTLB_MISS_1G 0x1d15c
+#define PM_DTLB_MISS_4K 0x2c056
+#define PM_DERAT_MISS_1G 0x2c05a
+#define PM_MRK_DERAT_MISS_2M 0x2d152
+#define PM_MRK_DTLB_MISS_4K  0x2d156
+#define PM_MRK_DTLB_MISS_16G 0x2d15e
+#define PM_DTLB_MISS_64K 0x3c056
+#define PM_MRK_DERAT_MISS_1G 0x3d152
+#define PM_MRK_DTLB_MISS_64K 0x3d156
+#define PM_DISP_HELD_SYNC_HOLD 0x4003c
+#define PM_DTLB_MISS_16M 0x4c056
+#define PM_DTLB_MISS_1G 0x4c05a
+#define PM_MRK_DTLB_MISS_16M 0x4c15e
+#define PM_MRK_ST_DONE_L2 0x10134
+#define PM_RADIX_PWC_L1_HIT 0x1f056
+#define PM_FLOP_CMPL 0x100f4
+#define PM_MRK_NTF_FIN 0x20112
+#define PM_RADIX_PWC_L2_HIT 0x2d024
+#define PM_IFETCH_THROTTLE 0x3405e
+#define PM_MRK_L2_TM_ST_ABORT_SISTER 0x3e15c
+#define PM_RADIX_PWC_L3_HIT 0x3f056
+#define PM_RUN_CYC_SMT2_MODE 0x3006c
+#define PM_TM_TX_PASS_RUN_INST 0x4e014
+
+#define PVR_POWER9_CUMULUS 0x00002000
+
+int blacklist_events_dd21[] = {
+	PM_MRK_ST_DONE_L2,
+	PM_RADIX_PWC_L1_HIT,
+	PM_FLOP_CMPL,
+	PM_MRK_NTF_FIN,
+	PM_RADIX_PWC_L2_HIT,
+	PM_IFETCH_THROTTLE,
+	PM_MRK_L2_TM_ST_ABORT_SISTER,
+	PM_RADIX_PWC_L3_HIT,
+	PM_RUN_CYC_SMT2_MODE,
+	PM_TM_TX_PASS_RUN_INST,
+	PM_DISP_HELD_SYNC_HOLD,
+};
+
+int blacklist_events_dd22[] = {
+	PM_DTLB_MISS_16G,
+	PM_DERAT_MISS_2M,
+	PM_DTLB_MISS_2M,
+	PM_MRK_DTLB_MISS_1G,
+	PM_DTLB_MISS_4K,
+	PM_DERAT_MISS_1G,
+	PM_MRK_DERAT_MISS_2M,
+	PM_MRK_DTLB_MISS_4K,
+	PM_MRK_DTLB_MISS_16G,
+	PM_DTLB_MISS_64K,
+	PM_MRK_DERAT_MISS_1G,
+	PM_MRK_DTLB_MISS_64K,
+	PM_DISP_HELD_SYNC_HOLD,
+	PM_DTLB_MISS_16M,
+	PM_DTLB_MISS_1G,
+	PM_MRK_DTLB_MISS_16M,
+};
+
+int pvr_min;
+
+/*
+ * check for power9 support for 2.1 and
+ * 2.2 model where blacklist is applicable.
+ */
+int check_for_power9_version(void)
+{
+	pvr_min = PVR_MIN(mfspr(SPRN_PVR));
+
+	SKIP_IF(PVR_VER(pvr) != POWER9);
+	SKIP_IF(!(pvr & PVR_POWER9_CUMULUS));
+
+	SKIP_IF(!(3 - pvr_min));
+
+	return 0;
+}
+
+/*
+ * Testcase to ensure that using blacklisted bits in
+ * event code should cause event_open to fail in power9
+ */
+
+static int blacklisted_events(void)
+{
+	struct event event;
+	int i = 0;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * check for power9 support for 2.1 and
+	 * 2.2 model where blacklist is applicable.
+	 */
+	SKIP_IF(check_for_power9_version());
+
+	/* Skip for Generic compat mode */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	if (pvr_min == 1) {
+		for (i = 0; i < ARRAY_SIZE(blacklist_events_dd21); i++) {
+			event_init(&event, blacklist_events_dd21[i]);
+			FAIL_IF(!event_open(&event));
+		}
+	} else if (pvr_min == 2) {
+		for (i = 0; i < ARRAY_SIZE(blacklist_events_dd22); i++) {
+			event_init(&event, blacklist_events_dd22[i]);
+			FAIL_IF(!event_open(&event));
+		}
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(blacklisted_events, "blacklisted_events");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p10.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p10.c
new file mode 100644
index 000000000000..355f8bbe06c3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p10.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+#define PM_RUN_CYC_ALT 0x200f4
+#define PM_INST_DISP 0x200f2
+#define PM_BR_2PATH 0x20036
+#define PM_LD_MISS_L1 0x3e054
+#define PM_RUN_INST_CMPL_ALT 0x400fa
+
+#define EventCode_1 0x100fc
+#define EventCode_2 0x200fa
+#define EventCode_3 0x300fc
+#define EventCode_4 0x400fc
+
+/*
+ * Check for event alternatives.
+ */
+
+static int event_alternatives_tests_p10(void)
+{
+	struct event *e, events[5];
+	int i;
+	int pvr = PVR_VER(mfspr(SPRN_PVR));
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * PVR check is used here since PMU specific data like
+	 * alternative events is handled by respective PMU driver
+	 * code and using PVR will work correctly for all cases
+	 * including generic compat mode.
+	 */
+	SKIP_IF((pvr != POWER10) && (pvr != POWER11));
+
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/*
+	 * Test for event alternative for 0x0001e
+	 * and 0x00002.
+	 */
+	e = &events[0];
+	event_init(e, 0x0001e);
+
+	e = &events[1];
+	event_init(e, EventCode_1);
+
+	e = &events[2];
+	event_init(e, EventCode_2);
+
+	e = &events[3];
+	event_init(e, EventCode_3);
+
+	e = &events[4];
+	event_init(e, EventCode_4);
+
+	FAIL_IF(event_open(&events[0]));
+
+	/*
+	 * Expected to pass since 0x0001e has alternative event
+	 * 0x600f4 in PMC6. So it can go in with other events
+	 * in PMC1 to PMC4.
+	 */
+	for (i = 1; i < 5; i++)
+		FAIL_IF(event_open_with_group(&events[i], events[0].fd));
+
+	for (i = 0; i < 5; i++)
+		event_close(&events[i]);
+
+	e = &events[0];
+	event_init(e, 0x00002);
+
+	e = &events[1];
+	event_init(e, EventCode_1);
+
+	e = &events[2];
+	event_init(e, EventCode_2);
+
+	e = &events[3];
+	event_init(e, EventCode_3);
+
+	e = &events[4];
+	event_init(e, EventCode_4);
+
+	FAIL_IF(event_open(&events[0]));
+
+	/*
+	 * Expected to pass since 0x00020 has alternative event
+	 * 0x500fa in PMC5. So it can go in with other events
+	 * in PMC1 to PMC4.
+	 */
+	for (i = 1; i < 5; i++)
+		FAIL_IF(event_open_with_group(&events[i], events[0].fd));
+
+	for (i = 0; i < 5; i++)
+		event_close(&events[i]);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(event_alternatives_tests_p10, "event_alternatives_tests_p10");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c
new file mode 100644
index 000000000000..f7dcf0e0447c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/event_alternatives_tests_p9.c
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+#define PM_RUN_CYC_ALT 0x200f4
+#define PM_INST_DISP 0x200f2
+#define PM_BR_2PATH 0x20036
+#define PM_LD_MISS_L1 0x3e054
+#define PM_RUN_INST_CMPL_ALT 0x400fa
+
+#define EventCode_1 0x200fa
+#define EventCode_2 0x200fc
+#define EventCode_3 0x300fc
+#define EventCode_4 0x400fc
+
+/*
+ * Check for event alternatives.
+ */
+
+static int event_alternatives_tests_p9(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * PVR check is used here since PMU specific data like
+	 * alternative events is handled by respective PMU driver
+	 * code and using PVR will work correctly for all cases
+	 * including generic compat mode.
+	 */
+	SKIP_IF(PVR_VER(mfspr(SPRN_PVR)) != POWER9);
+
+	/* Skip for generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Init the event for PM_RUN_CYC_ALT */
+	event_init(&leader, PM_RUN_CYC_ALT);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_1);
+
+	/*
+	 * Expected to pass since PM_RUN_CYC_ALT in PMC2 has alternative event
+	 * 0x600f4. So it can go in with EventCode_1 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_INST_DISP);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+	/*
+	 * Expected to pass since PM_INST_DISP in PMC2 has alternative event
+	 * 0x300f2 in PMC3. So it can go in with EventCode_2 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_BR_2PATH);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+	/*
+	 * Expected to pass since PM_BR_2PATH in PMC2 has alternative event
+	 * 0x40036 in PMC4. So it can go in with EventCode_2 which is using PMC2
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_LD_MISS_L1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_3);
+	/*
+	 * Expected to pass since PM_LD_MISS_L1 in PMC3 has alternative event
+	 * 0x400f0 in PMC4. So it can go in with EventCode_3 which is using PMC3
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	event_init(&leader, PM_RUN_INST_CMPL_ALT);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_4);
+	/*
+	 * Expected to pass since PM_RUN_INST_CMPL_ALT in PMC4 has alternative event
+	 * 0x500fa in PMC5. So it can go in with EventCode_4 which is using PMC4
+	 */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(event_alternatives_tests_p9, "event_alternatives_tests_p9");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
new file mode 100644
index 000000000000..a378fa9a5a7b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/generic_events_valid_test.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <limits.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase to ensure that using invalid event in generic
+ * event for PERF_TYPE_HARDWARE should fail
+ */
+
+static int generic_events_valid_test(void)
+{
+	struct event event;
+	int pvr = mfspr(SPRN_PVR);
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* generic events is different in compat_mode */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/*
+	 * Invalid generic events in power10:
+	 * - PERF_COUNT_HW_BUS_CYCLES
+	 * - PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+	 * - PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+	 * - PERF_COUNT_HW_REF_CPU_CYCLES
+	 */
+	if ((pvr == POWER10) || (pvr == POWER11)) {
+		event_init_opts(&event, PERF_COUNT_HW_CPU_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_INSTRUCTIONS,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_CACHE_REFERENCES,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_CACHE_MISSES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BRANCH_MISSES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BUS_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+
+		event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+
+		event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+
+		event_init_opts(&event, PERF_COUNT_HW_REF_CPU_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+	} else if (PVR_VER(mfspr(SPRN_PVR)) == POWER9) {
+		/*
+		 * Invalid generic events in power9:
+		 * - PERF_COUNT_HW_BUS_CYCLES
+		 * - PERF_COUNT_HW_REF_CPU_CYCLES
+		 */
+		event_init_opts(&event, PERF_COUNT_HW_CPU_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_INSTRUCTIONS, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_CACHE_REFERENCES,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_CACHE_MISSES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BRANCH_MISSES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_BUS_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+
+		event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_STALLED_CYCLES_BACKEND,
+				PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init_opts(&event, PERF_COUNT_HW_REF_CPU_CYCLES, PERF_TYPE_HARDWARE, "event");
+		FAIL_IF(!event_open(&event));
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(generic_events_valid_test, "generic_events_valid_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c
new file mode 100644
index 000000000000..f4be05aa3a3d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_cache_test.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/* All L1 D cache load references counted at finish, gated by reject */
+#define EventCode_1 0x1100fc
+/* Load Missed L1 */
+#define EventCode_2 0x23e054
+/* Load Missed L1 */
+#define EventCode_3 0x13e054
+
+/*
+ * Testcase for group constraint check of data and instructions
+ * cache qualifier bits which is used to program cache select field in
+ * Monitor Mode Control Register 1 (MMCR1: 16-17) for l1 cache.
+ * All events in the group should match cache select bits otherwise
+ * event_open for the group will fail.
+ */
+static int group_constraint_cache(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Init the events for the group contraint check for l1 cache select bits */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+
+	/* Expected to fail as sibling event doesn't request same l1 cache select bits as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_close(&event);
+
+	/* Init the event for the group contraint l1 cache select test */
+	event_init(&event, EventCode_3);
+
+	/* Expected to succeed as sibling event request same l1 cache select bits as leader */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_cache, "group_constraint_cache");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c
new file mode 100644
index 000000000000..e3c7a0c071e2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_l2l3_sel_test.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/* All successful D-side store dispatches for this thread */
+#define EventCode_1 0x010000046080
+/* All successful D-side store dispatches for this thread that were L2 Miss */
+#define EventCode_2 0x26880
+/* All successful D-side store dispatches for this thread that were L2 Miss */
+#define EventCode_3 0x010000026880
+
+/*
+ * Testcase for group constraint check of l2l3_sel bits which is
+ * used to program l2l3 select field in Monitor Mode Control Register 0
+ * (MMCR0: 56-60).
+ * All events in the group should match l2l3_sel bits otherwise
+ * event_open for the group should fail.
+ */
+static int group_constraint_l2l3_sel(void)
+{
+	struct event event, leader;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is only aplicable on ISA v3.1
+	 */
+	SKIP_IF(platform_check_for_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the events for the group contraint check for l2l3_sel bits */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+
+	/* Expected to fail as sibling event doesn't request same l2l3_sel bits as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_close(&event);
+
+	/* Init the event for the group contraint l2l3_sel test */
+	event_init(&event, EventCode_3);
+
+	/* Expected to succeed as sibling event request same l2l3_sel bits as leader */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_l2l3_sel, "group_constraint_l2l3_sel");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_mmcra_sample_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_mmcra_sample_test.c
new file mode 100644
index 000000000000..ff625b5d80eb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_mmcra_sample_test.c
@@ -0,0 +1,54 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+#define EventCode_1 0x35340401e0
+#define EventCode_2 0x353c0101ec
+#define EventCode_3 0x35340101ec
+/*
+ * Test that using different sample bits in
+ * event code cause failure in schedule for
+ * group of events.
+ */
+
+static int group_constraint_mmcra_sample(void)
+{
+	struct event event, leader;
+
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Events with different "sample" field values
+	 * in a group will fail to schedule.
+	 * Use event with load only sampling mode as
+	 * group leader. Use event with store only sampling
+	 * as sibling event.
+	 */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+
+	/* Expected to fail as sibling event doesn't use same sampling bits as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_init(&event, EventCode_3);
+
+	/* Expected to pass as sibling event use same sampling bits as leader */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_mmcra_sample, "group_constraint_mmcra_sample");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc56_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc56_test.c
new file mode 100644
index 000000000000..f5ee4796d46c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc56_test.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase for checking constraint checks for
+ * Performance Monitor Counter 5 (PMC5) and also
+ * Performance Monitor Counter 6 (PMC6). Events using
+ * PMC5/PMC6 shouldn't have other fields in event
+ * code like cache bits, thresholding or marked bit.
+ */
+
+static int group_constraint_pmc56(void)
+{
+	struct event event;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Events using PMC5 and PMC6 with cache bit
+	 * set in event code is expected to fail.
+	 */
+	event_init(&event, 0x2500fa);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x2600f4);
+	FAIL_IF(!event_open(&event));
+
+	/*
+	 * PMC5 and PMC6 only supports base events:
+	 * ie 500fa and 600f4. Other combinations
+	 * should fail.
+	 */
+	event_init(&event, 0x501e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x6001e);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x501fa);
+	FAIL_IF(!event_open(&event));
+
+	/*
+	 * Events using PMC5 and PMC6 with random
+	 * sampling bits set in event code should fail
+	 * to schedule.
+	 */
+	event_init(&event, 0x35340500fa);
+	FAIL_IF(!event_open(&event));
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_pmc56, "group_constraint_pmc56");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc_count_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc_count_test.c
new file mode 100644
index 000000000000..af7c5c75101c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_pmc_count_test.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase for number of counters in use.
+ * The number of programmable counters is from
+ * performance monitor counter 1 to performance
+ * monitor counter 4 (PMC1-PMC4). If number of
+ * counters in use exceeds the limit, next event
+ * should fail to schedule.
+ */
+
+static int group_constraint_pmc_count(void)
+{
+	struct event *e, events[5];
+	int i;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Test for number of counters in use.
+	 * Use PMC1 to PMC4 for leader and 3 sibling
+	 * events. Trying to open fourth event should
+	 * fail here.
+	 */
+	e = &events[0];
+	event_init(e, 0x1001a);
+
+	e = &events[1];
+	event_init(e, 0x200fc);
+
+	e = &events[2];
+	event_init(e, 0x30080);
+
+	e = &events[3];
+	event_init(e, 0x40054);
+
+	e = &events[4];
+	event_init(e, 0x0002c);
+
+	FAIL_IF(event_open(&events[0]));
+
+	/*
+	 * The event_open will fail on event 4 if constraint
+	 * check fails
+	 */
+	for (i = 1; i < 5; i++) {
+		if (i == 4)
+			FAIL_IF(!event_open_with_group(&events[i], events[0].fd));
+		else
+			FAIL_IF(event_open_with_group(&events[i], events[0].fd));
+	}
+
+	for (i = 1; i < 4; i++)
+		event_close(&events[i]);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_pmc_count, "group_constraint_pmc_count");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
new file mode 100644
index 000000000000..9233175787cc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_radix_scope_qual_test.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L2 */
+#define EventCode_1 0x14242
+/* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L3 */
+#define EventCode_2 0x24242
+
+/*
+ * Testcase for group constraint check for radix_scope_qual
+ * field which is used to program Monitor Mode Control
+ * egister (MMCR1)  bit 18.
+ * All events in the group should match radix_scope_qual,
+ * bits otherwise event_open for the group should fail.
+ */
+
+static int group_constraint_radix_scope_qual(void)
+{
+	struct event event, leader;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is aplicable on ISA v3.1 only.
+	 */
+	SKIP_IF(platform_check_for_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the events for the group contraint check for radix_scope_qual bits */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, 0x200fc);
+
+	/* Expected to fail as sibling event doesn't request same radix_scope_qual bits as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_init(&event, EventCode_2);
+	/* Expected to pass as sibling event request same radix_scope_qual bits as leader */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_radix_scope_qual,
+			    "group_constraint_radix_scope_qual");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_repeat_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_repeat_test.c
new file mode 100644
index 000000000000..371cd05bb3ed
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_repeat_test.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/* The processor's L1 data cache was reloaded */
+#define EventCode1 0x21C040
+#define EventCode2 0x22C040
+
+/*
+ * Testcase for group constraint check
+ * when using events with same PMC.
+ * Multiple events in a group shouldn't
+ * ask for same PMC. If so it should fail.
+ */
+
+static int group_constraint_repeat(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Two events in a group using same PMC
+	 * should fail to get scheduled. Usei same PMC2
+	 * for leader and sibling event which is expected
+	 * to fail.
+	 */
+	event_init(&leader, EventCode1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode1);
+
+	/* Expected to fail since sibling event is requesting same PMC as leader */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_init(&event, EventCode2);
+
+	/* Expected to pass since sibling event is requesting different PMC */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_repeat, "group_constraint_repeat");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c
new file mode 100644
index 000000000000..4b69e7214c0b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_cmp_test.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Primary PMU events used here is PM_MRK_INST_CMPL (0x401e0) and
+ * PM_THRESH_MET (0x101ec)
+ * Threshold event selection used is issue to complete for cycles
+ * Sampling criteria is Load or Store only sampling
+ */
+#define p9_EventCode_1 0x13e35340401e0
+#define p9_EventCode_2 0x17d34340101ec
+#define p9_EventCode_3 0x13e35340101ec
+#define p10_EventCode_1 0x35340401e0
+#define p10_EventCode_2 0x35340101ec
+
+/*
+ * Testcase for group constraint check of thresh_cmp bits which is
+ * used to program thresh compare field in Monitor Mode Control Register A
+ * (MMCRA: 9-18 bits for power9 and MMCRA: 8-18 bits for power10/power11).
+ * All events in the group should match thresh compare bits otherwise
+ * event_open for the group will fail.
+ */
+static int group_constraint_thresh_cmp(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) {
+		/* Init the events for the group contraint check for thresh_cmp bits */
+		event_init(&leader, p10_EventCode_1);
+
+		/* Add the thresh_cmp value for leader in config1 */
+		leader.attr.config1 = 1000;
+		FAIL_IF(event_open(&leader));
+
+		event_init(&event, p10_EventCode_2);
+
+		/* Add the different thresh_cmp value from the leader event in config1 */
+		event.attr.config1 = 2000;
+
+		/* Expected to fail as sibling and leader event request different thresh_cmp bits */
+		FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+		event_close(&event);
+
+		/* Init the event for the group contraint thresh compare test */
+		event_init(&event, p10_EventCode_2);
+
+		/* Add the same thresh_cmp value for leader and sibling event in config1 */
+		event.attr.config1 = 1000;
+
+		/* Expected to succeed as sibling and leader event request same thresh_cmp bits */
+		FAIL_IF(event_open_with_group(&event, leader.fd));
+
+		event_close(&leader);
+		event_close(&event);
+	} else {
+		/* Init the events for the group contraint check for thresh_cmp bits */
+		event_init(&leader, p9_EventCode_1);
+		FAIL_IF(event_open(&leader));
+
+		event_init(&event, p9_EventCode_2);
+
+		/* Expected to fail as sibling and leader event request different thresh_cmp bits */
+		FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+		event_close(&event);
+
+		/* Init the event for the group contraint thresh compare test */
+		event_init(&event, p9_EventCode_3);
+
+		/* Expected to succeed as sibling and leader event request same thresh_cmp bits */
+		FAIL_IF(event_open_with_group(&event, leader.fd));
+
+		event_close(&leader);
+		event_close(&event);
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_thresh_cmp, "group_constraint_thresh_cmp");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c
new file mode 100644
index 000000000000..e0852ebc1671
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_ctl_test.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Primary PMU events used here are PM_MRK_INST_CMPL (0x401e0) and
+ * PM_THRESH_MET (0x101ec).
+ * Threshold event selection used is issue to complete and issue to
+ * finished for cycles
+ * Sampling criteria is Load or Store only sampling
+ */
+#define EventCode_1 0x35340401e0
+#define EventCode_2 0x34340101ec
+#define EventCode_3 0x35340101ec
+
+/*
+ * Testcase for group constraint check of thresh_ctl bits which is
+ * used to program thresh compare field in Monitor Mode Control Register A
+ * (MMCR0: 48-55).
+ * All events in the group should match thresh ctl bits otherwise
+ * event_open for the group will fail.
+ */
+static int group_constraint_thresh_ctl(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Init the events for the group contraint thresh control test */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+
+	/* Expected to fail as sibling and leader event request different thresh_ctl bits */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_close(&event);
+
+	/* Init the event for the group contraint thresh control test */
+	event_init(&event, EventCode_3);
+
+	 /* Expected to succeed as sibling and leader event request same thresh_ctl bits */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_thresh_ctl, "group_constraint_thresh_ctl");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c
new file mode 100644
index 000000000000..50a8cd843ce7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_thresh_sel_test.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Primary PMU events used here are PM_MRK_INST_CMPL (0x401e0) and
+ * PM_THRESH_MET (0x101ec).
+ * Threshold event selection used is issue to complete
+ * Sampling criteria is Load or Store only sampling
+ */
+#define EventCode_1 0x35340401e0
+#define EventCode_2 0x35540101ec
+#define EventCode_3 0x35340101ec
+
+/*
+ * Testcase for group constraint check of thresh_sel bits which is
+ * used to program thresh select field in Monitor Mode Control Register A
+ * (MMCRA: 45-57).
+ * All events in the group should match thresh sel bits otherwise
+ * event_open for the group will fail.
+ */
+static int group_constraint_thresh_sel(void)
+{
+	struct event event, leader;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Init the events for the group contraint thresh select test */
+	event_init(&leader, EventCode_1);
+	FAIL_IF(event_open(&leader));
+
+	event_init(&event, EventCode_2);
+
+	/* Expected to fail as sibling and leader event request different thresh_sel bits */
+	FAIL_IF(!event_open_with_group(&event, leader.fd));
+
+	event_close(&event);
+
+	/* Init the event for the group contraint thresh select test */
+	event_init(&event, EventCode_3);
+
+	 /* Expected to succeed as sibling and leader event request same thresh_sel bits */
+	FAIL_IF(event_open_with_group(&event, leader.fd));
+
+	event_close(&leader);
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_thresh_sel, "group_constraint_thresh_sel");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c
new file mode 100644
index 000000000000..a2c18923dcec
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_constraint_unit_test.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/* All successful D-side store dispatches for this thread with PMC 2 */
+#define EventCode_1 0x26080
+/* All successful D-side store dispatches for this thread with PMC 4 */
+#define EventCode_2 0x46080
+/* All successful D-side store dispatches for this thread that were L2 Miss with PMC 3 */
+#define EventCode_3 0x36880
+
+/*
+ * Testcase for group constraint check of unit and pmc bits which is
+ * used to program corresponding unit and pmc field in Monitor Mode
+ * Control Register 1 (MMCR1)
+ * One of the event in the group should use PMC 4 incase units field
+ * value is within 6 to 9 otherwise event_open for the group will fail.
+ */
+static int group_constraint_unit(void)
+{
+	struct event *e, events[3];
+
+	/*
+	 * Check for platform support for the test.
+	 * Constraint to use PMC4 with one of the event in group,
+	 * when the unit is within 6 to 9 is only applicable on
+	 * power9.
+	 */
+	SKIP_IF(platform_check_for_tests());
+	SKIP_IF(have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the events for the group contraint check for unit bits */
+	e = &events[0];
+	event_init(e, EventCode_1);
+
+	 /* Expected to fail as PMC 4 is not used with unit field value 6 to 9 */
+	FAIL_IF(!event_open(&events[0]));
+
+	/* Init the events for the group contraint check for unit bits */
+	e = &events[1];
+	event_init(e, EventCode_2);
+
+	/* Expected to pass as PMC 4 is used with unit field value 6 to 9 */
+	FAIL_IF(event_open(&events[1]));
+
+	/* Init the event for the group contraint unit test */
+	e = &events[2];
+	event_init(e, EventCode_3);
+
+	/* Expected to fail as PMC4 is not being used */
+	FAIL_IF(!event_open_with_group(&events[2], events[0].fd));
+
+	/* Expected to succeed as event using PMC4 */
+	FAIL_IF(event_open_with_group(&events[2], events[1].fd));
+
+	event_close(&events[0]);
+	event_close(&events[1]);
+	event_close(&events[2]);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_constraint_unit, "group_constraint_unit");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/group_pmc56_exclude_constraints_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_pmc56_exclude_constraints_test.c
new file mode 100644
index 000000000000..cff9ac170df6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/group_pmc56_exclude_constraints_test.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include <sys/prctl.h>
+#include <limits.h>
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase for group constraint check for
+ * Performance Monitor Counter 5 (PMC5) and also
+ * Performance Monitor Counter 6 (PMC6).
+ * Test that pmc5/6 is excluded from constraint
+ * check when scheduled along with group of events.
+ */
+
+static int group_pmc56_exclude_constraints(void)
+{
+	struct event *e, events[3];
+	int i;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * PMC5/6 is excluded from constraint bit
+	 * check along with group of events. Use
+	 * group of events with PMC5, PMC6 and also
+	 * event with cache bit (dc_ic) set. Test expects
+	 * this set of events to go in as a group.
+	 */
+	e = &events[0];
+	event_init(e, 0x500fa);
+
+	e = &events[1];
+	event_init(e, 0x600f4);
+
+	e = &events[2];
+	event_init(e, 0x22C040);
+
+	FAIL_IF(event_open(&events[0]));
+
+	/*
+	 * The event_open will fail if constraint check fails.
+	 * Since we are asking for events in a group and since
+	 * PMC5/PMC6 is excluded from group constraints, even_open
+	 * should pass.
+	 */
+	for (i = 1; i < 3; i++)
+		FAIL_IF(event_open_with_group(&events[i], events[0].fd));
+
+	for (i = 0; i < 3; i++)
+		event_close(&events[i]);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(group_pmc56_exclude_constraints, "group_pmc56_exclude_constraints");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/hw_cache_event_type_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/hw_cache_event_type_test.c
new file mode 100644
index 000000000000..a45b1da5b568
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/hw_cache_event_type_test.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "utils.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Load Missed L1, for power9 its pointing to PM_LD_MISS_L1_FIN (0x2c04e) and
+ * for power10 its pointing to PM_LD_MISS_L1 (0x3e054)
+ *
+ * Hardware cache level : PERF_COUNT_HW_CACHE_L1D
+ * Hardware cache event operation type : PERF_COUNT_HW_CACHE_OP_READ
+ * Hardware cache event result type : PERF_COUNT_HW_CACHE_RESULT_MISS
+ */
+#define EventCode_1 0x10000
+/*
+ * Hardware cache level : PERF_COUNT_HW_CACHE_L1D
+ * Hardware cache event operation type : PERF_COUNT_HW_CACHE_OP_WRITE
+ * Hardware cache event result type : PERF_COUNT_HW_CACHE_RESULT_ACCESS
+ */
+#define EventCode_2 0x0100
+/*
+ * Hardware cache level : PERF_COUNT_HW_CACHE_DTLB
+ * Hardware cache event operation type : PERF_COUNT_HW_CACHE_OP_WRITE
+ * Hardware cache event result type : PERF_COUNT_HW_CACHE_RESULT_ACCESS
+ */
+#define EventCode_3 0x0103
+/*
+ * Hardware cache level : PERF_COUNT_HW_CACHE_L1D
+ * Hardware cache event operation type : PERF_COUNT_HW_CACHE_OP_READ
+ * Hardware cache event result type : Invalid ( > PERF_COUNT_HW_CACHE_RESULT_MAX)
+ */
+#define EventCode_4 0x030000
+
+/*
+ * A perf test to check valid hardware cache events.
+ */
+static int hw_cache_event_type_test(void)
+{
+	struct event event;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Skip for Generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Init the event to test hardware cache event */
+	event_init_opts(&event, EventCode_1, PERF_TYPE_HW_CACHE, "event");
+
+	/* Expected to success as its pointing to L1 load miss */
+	FAIL_IF(event_open(&event));
+	event_close(&event);
+
+	/* Init the event to test hardware cache event */
+	event_init_opts(&event, EventCode_2, PERF_TYPE_HW_CACHE, "event");
+
+	/* Expected to fail as the corresponding cache event entry have 0 in that index */
+	FAIL_IF(!event_open(&event));
+	event_close(&event);
+
+	/* Init the event to test hardware cache event */
+	event_init_opts(&event, EventCode_3, PERF_TYPE_HW_CACHE, "event");
+
+	/* Expected to fail as the corresponding cache event entry have -1 in that index */
+	FAIL_IF(!event_open(&event));
+	event_close(&event);
+
+	/* Init the event to test hardware cache event */
+	event_init_opts(&event, EventCode_4, PERF_TYPE_HW_CACHE, "event");
+
+	/* Expected to fail as hardware cache event result type is Invalid */
+	FAIL_IF(!event_open(&event));
+	event_close(&event);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(hw_cache_event_type_test, "hw_cache_event_type_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/invalid_event_code_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/invalid_event_code_test.c
new file mode 100644
index 000000000000..88aa7fd64ec1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/invalid_event_code_test.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <sys/prctl.h>
+#include <limits.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/* The data cache was reloaded from local core's L3 due to a demand load */
+#define EventCode_1 0x1340000001c040
+/* PM_DATA_RADIX_PROCESS_L2_PTE_FROM_L2 */
+#define EventCode_2 0x14242
+/* Event code with IFM, EBB, BHRB bits set in event code */
+#define EventCode_3 0xf00000000000001e
+
+/*
+ * Some of the bits in the event code is
+ * reserved for specific platforms.
+ * Event code bits 52-59 are reserved in power9,
+ * whereas in ISA v3.1, these are used for programming
+ * Monitor Mode Control Register 3 (MMCR3).
+ * Bit 9 in event code is reserved in power9,
+ * whereas it is used for programming "radix_scope_qual"
+ * bit 18 in Monitor Mode Control Register 1 (MMCR1).
+ *
+ * Testcase to ensure that using reserved bits in
+ * event code should cause event_open to fail.
+ */
+
+static int invalid_event_code(void)
+{
+	struct event event;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Events using MMCR3 bits and radix scope qual bits
+	 * should fail in power9 and should succeed in power10 ( ISA v3.1 )
+	 * Init the events and check for pass/fail in event open.
+	 */
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1)) {
+		event_init(&event, EventCode_1);
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+
+		event_init(&event, EventCode_2);
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+	} else {
+		event_init(&event, EventCode_1);
+		FAIL_IF(!event_open(&event));
+
+		event_init(&event, EventCode_2);
+		FAIL_IF(!event_open(&event));
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(invalid_event_code, "invalid_event_code");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_sample_elig_mode_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_sample_elig_mode_test.c
new file mode 100644
index 000000000000..757f454c0dc0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_sample_elig_mode_test.c
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase for reserved bits in Monitor Mode Control
+ * Register A (MMCRA) Random Sampling Mode (SM) value.
+ * As per Instruction Set Architecture (ISA), the values
+ * 0x5, 0x9, 0xD, 0x19, 0x1D, 0x1A, 0x1E are reserved
+ * for sampling mode field. Test that having these reserved
+ * bit values should cause event_open to fail.
+ * Input event code uses these sampling bits along with
+ * 401e0 (PM_MRK_INST_CMPL).
+ */
+
+static int reserved_bits_mmcra_sample_elig_mode(void)
+{
+	struct event event;
+	int pvr = PVR_VER(mfspr(SPRN_PVR));
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Skip for Generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/*
+	 * MMCRA Random Sampling Mode (SM) values: 0x5
+	 * 0x9, 0xD, 0x19, 0x1D, 0x1A, 0x1E is reserved.
+	 * Expected to fail when using these reserved values.
+	 */
+	event_init(&event, 0x50401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x90401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0xD0401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x190401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x1D0401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x1A0401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x1E0401e0);
+	FAIL_IF(!event_open(&event));
+
+	/*
+	 * MMCRA Random Sampling Mode (SM) value 0x10
+	 * is reserved in power10/power11 and 0xC is reserved in
+	 * power9.
+	 */
+	if ((pvr == POWER10) || (pvr == POWER11)) {
+		event_init(&event, 0x100401e0);
+		FAIL_IF(!event_open(&event));
+	} else if (PVR_VER(mfspr(SPRN_PVR)) == POWER9) {
+		event_init(&event, 0xC0401e0);
+		FAIL_IF(!event_open(&event));
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(reserved_bits_mmcra_sample_elig_mode,
+			    "reserved_bits_mmcra_sample_elig_mode");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_thresh_ctl_test.c b/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_thresh_ctl_test.c
new file mode 100644
index 000000000000..4ea1c2f8913f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/event_code_tests/reserved_bits_mmcra_thresh_ctl_test.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include "../event.h"
+#include "../sampling_tests/misc.h"
+
+/*
+ * Testcase for reserved bits in Monitor Mode
+ * Control Register A (MMCRA) thresh_ctl bits.
+ * For MMCRA[48:51]/[52:55]) Threshold Start/Stop,
+ * 0b11110000/0b00001111 is reserved.
+ */
+
+static int reserved_bits_mmcra_thresh_ctl(void)
+{
+	struct event event;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/* Skip for Generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/*
+	 * MMCRA[48:51]/[52:55]) Threshold Start/Stop
+	 * events Selection. 0b11110000/0b00001111 is reserved.
+	 * Expected to fail when using these reserved values.
+	 */
+	event_init(&event, 0xf0340401e0);
+	FAIL_IF(!event_open(&event));
+
+	event_init(&event, 0x0f340401e0);
+	FAIL_IF(!event_open(&event));
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(reserved_bits_mmcra_thresh_ctl, "reserved_bits_mmcra_thresh_ctl");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/l3_bank_test.c b/tools/testing/selftests/powerpc/pmu/l3_bank_test.c
index 77472f31441e..a5dfa9bf3b9f 100644
--- a/tools/testing/selftests/powerpc/pmu/l3_bank_test.c
+++ b/tools/testing/selftests/powerpc/pmu/l3_bank_test.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <stdio.h>
@@ -20,6 +20,9 @@ static int l3_bank_test(void)
 	char *p;
 	int i;
 
+	// The L3 bank logic is only used on Power8 or later
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
 	p = malloc(MALLOC_SIZE);
 	FAIL_IF(!p);
 
diff --git a/tools/testing/selftests/powerpc/pmu/lib.c b/tools/testing/selftests/powerpc/pmu/lib.c
index a07104c2afe6..321357987408 100644
--- a/tools/testing/selftests/powerpc/pmu/lib.c
+++ b/tools/testing/selftests/powerpc/pmu/lib.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE	/* For CPU_ZERO etc. */
@@ -14,45 +14,6 @@
 #include "utils.h"
 #include "lib.h"
 
-
-int pick_online_cpu(void)
-{
-	cpu_set_t mask;
-	int cpu;
-
-	CPU_ZERO(&mask);
-
-	if (sched_getaffinity(0, sizeof(mask), &mask)) {
-		perror("sched_getaffinity");
-		return -1;
-	}
-
-	/* We prefer a primary thread, but skip 0 */
-	for (cpu = 8; cpu < CPU_SETSIZE; cpu += 8)
-		if (CPU_ISSET(cpu, &mask))
-			return cpu;
-
-	/* Search for anything, but in reverse */
-	for (cpu = CPU_SETSIZE - 1; cpu >= 0; cpu--)
-		if (CPU_ISSET(cpu, &mask))
-			return cpu;
-
-	printf("No cpus in affinity mask?!\n");
-	return -1;
-}
-
-int bind_to_cpu(int cpu)
-{
-	cpu_set_t mask;
-
-	printf("Binding to cpu %d\n", cpu);
-
-	CPU_ZERO(&mask);
-	CPU_SET(cpu, &mask);
-
-	return sched_setaffinity(0, sizeof(mask), &mask);
-}
-
 #define PARENT_TOKEN	0xAA
 #define CHILD_TOKEN	0x55
 
@@ -142,12 +103,10 @@ static int eat_cpu_child(union pipe read_pipe, union pipe write_pipe)
 pid_t eat_cpu(int (test_function)(void))
 {
 	union pipe read_pipe, write_pipe;
-	int cpu, rc;
+	int rc;
 	pid_t pid;
 
-	cpu = pick_online_cpu();
-	FAIL_IF(cpu < 0);
-	FAIL_IF(bind_to_cpu(cpu));
+	FAIL_IF(bind_to_cpu(BIND_CPU_ANY) < 0);
 
 	if (pipe(read_pipe.fds) == -1)
 		return -1;
@@ -216,38 +175,14 @@ int parse_proc_maps(void)
 
 bool require_paranoia_below(int level)
 {
-	unsigned long current;
-	char *end, buf[16];
-	FILE *f;
-	int rc;
-
-	rc = -1;
+	int err;
+	long current;
 
-	f = fopen(PARANOID_PATH, "r");
-	if (!f) {
-		perror("fopen");
-		goto out;
-	}
-
-	if (!fgets(buf, sizeof(buf), f)) {
-		printf("Couldn't read " PARANOID_PATH "?\n");
-		goto out_close;
-	}
-
-	current = strtoul(buf, &end, 10);
-
-	if (end == buf) {
+	err = read_long(PARANOID_PATH, &current, 10);
+	if (err) {
 		printf("Couldn't parse " PARANOID_PATH "?\n");
-		goto out_close;
+		return false;
 	}
 
-	if (current >= level)
-		goto out;
-
-	rc = 0;
-out_close:
-	fclose(f);
-out:
-	return rc;
+	return current < level;
 }
-
diff --git a/tools/testing/selftests/powerpc/pmu/lib.h b/tools/testing/selftests/powerpc/pmu/lib.h
index ca5d72ae3be6..1d62403ae6ea 100644
--- a/tools/testing/selftests/powerpc/pmu/lib.h
+++ b/tools/testing/selftests/powerpc/pmu/lib.h
@@ -1,11 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #ifndef __SELFTESTS_POWERPC_PMU_LIB_H
 #define __SELFTESTS_POWERPC_PMU_LIB_H
 
+#include <stdbool.h>
 #include <stdio.h>
 #include <stdint.h>
 #include <string.h>
@@ -19,8 +20,6 @@ union pipe {
 	int fds[2];
 };
 
-extern int pick_online_cpu(void);
-extern int bind_to_cpu(int cpu);
 extern int kill_child_and_wait(pid_t child_pid);
 extern int wait_for_child(pid_t child_pid);
 extern int sync_with_child(union pipe read_pipe, union pipe write_pipe);
diff --git a/tools/testing/selftests/powerpc/pmu/loop.S b/tools/testing/selftests/powerpc/pmu/loop.S
index 20c1f0876c47..c52ba09b6fed 100644
--- a/tools/testing/selftests/powerpc/pmu/loop.S
+++ b/tools/testing/selftests/powerpc/pmu/loop.S
@@ -1,6 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #include <ppc-asm.h>
@@ -41,3 +41,38 @@ FUNC_START(thirty_two_instruction_loop)
 	subi	r3,r3,1
 	b	FUNC_NAME(thirty_two_instruction_loop)
 FUNC_END(thirty_two_instruction_loop)
+
+FUNC_START(thirty_two_instruction_loop_with_ll_sc)
+	cmpdi	r3,0
+	beqlr
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 5
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+1:	ldarx	r6,0,r4		# 10
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 15
+	addi	r5,r5,1
+	addi	r5,r5,1
+	stdcx.	r6,0,r4
+	bne-	1b
+	addi	r5,r5,1		# 20
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 25
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1
+	addi	r5,r5,1		# 30
+	subi	r3,r3,1
+	b	FUNC_NAME(thirty_two_instruction_loop_with_ll_sc)
+FUNC_END(thirty_two_instruction_loop_with_ll_sc)
diff --git a/tools/testing/selftests/powerpc/pmu/per_event_excludes.c b/tools/testing/selftests/powerpc/pmu/per_event_excludes.c
index fddbbc9cae2f..ad32a09a6540 100644
--- a/tools/testing/selftests/powerpc/pmu/per_event_excludes.c
+++ b/tools/testing/selftests/powerpc/pmu/per_event_excludes.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
  */
 
 #define _GNU_SOURCE
@@ -23,12 +23,9 @@
 static int per_event_excludes(void)
 {
 	struct event *e, events[4];
-	char *platform;
 	int i;
 
-	platform = (char *)get_auxv_entry(AT_BASE_PLATFORM);
-	FAIL_IF(!platform);
-	SKIP_IF(strcmp(platform, "power8") != 0);
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
 
 	/*
 	 * We need to create the events disabled, otherwise the running/enabled
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/.gitignore b/tools/testing/selftests/powerpc/pmu/sampling_tests/.gitignore
new file mode 100644
index 000000000000..f93b4c7c3a8a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/.gitignore
@@ -0,0 +1,21 @@
+bhrb_filter_map_test
+bhrb_no_crash_wo_pmu_test
+intr_regs_no_crash_wo_pmu_test
+mmcr0_cc56run_test
+mmcr0_exceptionbits_test
+mmcr0_fc56_pmc1ce_test
+mmcr0_fc56_pmc56_test
+mmcr0_pmccext_test
+mmcr0_pmcjce_test
+mmcr1_comb_test
+mmcr1_sel_unit_cache_test
+mmcr2_fcs_fch_test
+mmcr2_l2l3_test
+mmcr3_src_test
+mmcra_bhrb_any_test
+mmcra_bhrb_cond_test
+mmcra_bhrb_disable_no_branch_test
+mmcra_bhrb_disable_test
+mmcra_bhrb_ind_call_test
+mmcra_thresh_cmp_test
+mmcra_thresh_marked_sample_test
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile
new file mode 100644
index 000000000000..0c4ed299c3b8
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := mmcr0_exceptionbits_test mmcr0_cc56run_test mmcr0_pmccext_test \
+		   mmcr0_pmcjce_test mmcr0_fc56_pmc1ce_test mmcr0_fc56_pmc56_test \
+		   mmcr1_comb_test mmcr2_l2l3_test mmcr2_fcs_fch_test \
+		   mmcr3_src_test mmcra_thresh_marked_sample_test mmcra_thresh_cmp_test \
+		   mmcra_bhrb_ind_call_test mmcra_bhrb_any_test mmcra_bhrb_cond_test \
+		   mmcra_bhrb_disable_test bhrb_no_crash_wo_pmu_test intr_regs_no_crash_wo_pmu_test \
+		   bhrb_filter_map_test mmcr1_sel_unit_cache_test mmcra_bhrb_disable_no_branch_test \
+		   check_extended_reg_test
+
+top_srcdir = ../../../../../..
+include ../../../lib.mk
+include ../../flags.mk
+
+CFLAGS += -m64
+
+$(TEST_GEN_PROGS): ../../harness.c ../../utils.c ../event.c ../lib.c misc.c misc.h ../loop.S ../branch_loops.S
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c
new file mode 100644
index 000000000000..3ad71d49ae65
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_filter_map_test.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test to check bhrb filter
+ * map. All the branch filters are not supported
+ * in powerpc. Supported filters in:
+ * power10/power11: any, any_call, ind_call, cond
+ * power9: any, any_call
+ *
+ * Testcase checks event open for invalid bhrb filter
+ * types should fail and valid filter types should pass.
+ * Testcase does validity check for these branch
+ * sample types.
+ */
+
+/* Invalid types for powerpc */
+/* Valid bhrb filters in power9/power10/power11 */
+int bhrb_filter_map_valid_common[] = {
+	PERF_SAMPLE_BRANCH_ANY,
+	PERF_SAMPLE_BRANCH_ANY_CALL,
+};
+
+/* Valid bhrb filters in power10/power11 */
+int bhrb_filter_map_valid_p10[] = {
+	PERF_SAMPLE_BRANCH_IND_CALL,
+	PERF_SAMPLE_BRANCH_COND,
+};
+
+#define EventCode 0x1001e
+
+static int bhrb_filter_map_test(void)
+{
+	struct event event;
+	int i;
+
+	/* Check for platform support for the test */
+	SKIP_IF(platform_check_for_tests());
+
+	/*
+	 * Skip for Generic compat PMU since
+	 * bhrb filters is not supported
+	 */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Init the event for the sampling test */
+	event_init(&event, EventCode);
+
+	event.attr.sample_period = 1000;
+	event.attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
+	event.attr.disabled = 1;
+
+	/* Invalid filter maps which are expected to fail in event_open */
+	for (i = PERF_SAMPLE_BRANCH_USER_SHIFT; i < PERF_SAMPLE_BRANCH_MAX_SHIFT; i++) {
+		/* Skip the valid branch sample type */
+		if (i == PERF_SAMPLE_BRANCH_ANY_SHIFT || i == PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT \
+			|| i == PERF_SAMPLE_BRANCH_IND_CALL_SHIFT || i == PERF_SAMPLE_BRANCH_COND_SHIFT)
+			continue;
+		event.attr.branch_sample_type = 1U << i;
+		FAIL_IF(!event_open(&event));
+	}
+
+	/* valid filter maps for power9/power10/power11 which are expected to pass in event_open */
+	for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_common); i++) {
+		event.attr.branch_sample_type = bhrb_filter_map_valid_common[i];
+		FAIL_IF(event_open(&event));
+		event_close(&event);
+	}
+
+	/*
+	 * filter maps which are valid in power10/power11 and invalid in power9.
+	 * PVR check is used here since PMU specific data like bhrb filter
+	 * alternative tests is handled by respective PMU driver code and
+	 * using PVR will work correctly for all cases including generic
+	 * compat mode.
+	 */
+	switch (PVR_VER(mfspr(SPRN_PVR))) {
+	case POWER11:
+	case POWER10:
+		for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
+			event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
+			FAIL_IF(event_open(&event));
+			event_close(&event);
+		}
+		break;
+	default:
+		for (i = 0; i < ARRAY_SIZE(bhrb_filter_map_valid_p10); i++) {
+			event.attr.branch_sample_type = bhrb_filter_map_valid_p10[i];
+			FAIL_IF(!event_open(&event));
+		}
+	}
+
+	/*
+	 * Combine filter maps which includes a valid branch filter and an invalid branch
+	 * filter. Example: any ( PERF_SAMPLE_BRANCH_ANY) and any_call
+	 * (PERF_SAMPLE_BRANCH_ANY_CALL).
+	 * The perf_event_open should fail in this case.
+	 */
+	event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_ANY | PERF_SAMPLE_BRANCH_ANY_CALL;
+	FAIL_IF(!event_open(&event));
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(bhrb_filter_map_test, "bhrb_filter_map_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_no_crash_wo_pmu_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_no_crash_wo_pmu_test.c
new file mode 100644
index 000000000000..4644c6782974
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/bhrb_no_crash_wo_pmu_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test for making sure
+ * enabling branch stack doesn't crash in any
+ * environment, say:
+ *  - With generic compat PMU
+ *  - without any PMU registered
+ *  - With platform specific PMU
+ *  A fix for bhrb sampling crash was added in kernel
+ *  via commit: b460b512417a ("powerpc/perf: Fix crashes
+ *  with generic_compat_pmu & BHRB")
+ *
+ * This testcase exercises this code by doing branch
+ * stack enable for software event. s/w event is used
+ * since software event will work even in platform
+ * without PMU.
+ */
+static int bhrb_no_crash_wo_pmu_test(void)
+{
+	struct event event;
+
+	/*
+	 * Init the event for the sampling test.
+	 * This uses software event which works on
+	 * any platform.
+	 */
+	event_init_opts(&event, 0, PERF_TYPE_SOFTWARE, "cycles");
+
+	event.attr.sample_period = 1000;
+	event.attr.sample_type = PERF_SAMPLE_BRANCH_STACK;
+	event.attr.disabled = 1;
+
+	/*
+	 * Return code of event_open is not
+	 * considered since test just expects no crash from
+	 * using PERF_SAMPLE_BRANCH_STACK. Also for environment
+	 * like generic compat PMU, branch stack is unsupported.
+	 */
+	event_open(&event);
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(bhrb_no_crash_wo_pmu_test, "bhrb_no_crash_wo_pmu_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c
new file mode 100644
index 000000000000..865bc69f920c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/check_extended_reg_test.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2024, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test to check extended
+ * reg support.
+ */
+static int check_extended_reg_test(void)
+{
+	/* Check for platform support for the test */
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_00));
+
+	 /* Skip for Generic compat PMU */
+	SKIP_IF(check_for_generic_compat_pmu());
+
+	/* Check if platform supports extended regs */
+	platform_extended_mask = perf_get_platform_reg_mask();
+	FAIL_IF(check_extended_regs_support());
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(check_extended_reg_test, "check_extended_reg_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/intr_regs_no_crash_wo_pmu_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/intr_regs_no_crash_wo_pmu_test.c
new file mode 100644
index 000000000000..839d2d225da0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/intr_regs_no_crash_wo_pmu_test.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * A perf sampling test for making sure
+ * sampling with -intr-regs doesn't crash
+ * in any environment, say:
+ *  - With generic compat PMU
+ *  - without any PMU registered
+ *  - With platform specific PMU.
+ *  A fix for crash with intr_regs was
+ *  addressed in commit: f75e7d73bdf7 in kernel.
+ *
+ * This testcase exercises this code path by doing
+ * intr_regs using software event. Software event is
+ * used since s/w event will work even in platform
+ * without PMU.
+ */
+static int intr_regs_no_crash_wo_pmu_test(void)
+{
+	struct event event;
+
+	/*
+	 * Init the event for the sampling test.
+	 * This uses software event which works on
+	 * any platform.
+	 */
+	event_init_opts(&event, 0, PERF_TYPE_SOFTWARE, "cycles");
+
+	event.attr.sample_period = 1000;
+	event.attr.sample_type = PERF_SAMPLE_REGS_INTR;
+	event.attr.disabled = 1;
+
+	/*
+	 * Return code of event_open is not considered
+	 * since test just expects no crash from using
+	 * PERF_SAMPLE_REGS_INTR.
+	 */
+	event_open(&event);
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(intr_regs_no_crash_wo_pmu_test, "intr_regs_no_crash_wo_pmu_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
new file mode 100644
index 000000000000..8a538b6182a1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
@@ -0,0 +1,553 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ * Copyright 2022, Madhavan Srinivasan, IBM Corp.
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include "misc.h"
+
+#define PAGE_SIZE               sysconf(_SC_PAGESIZE)
+
+/* Storage for platform version */
+int pvr;
+u64 platform_extended_mask;
+
+/* Mask and Shift for Event code fields */
+int ev_mask_pmcxsel, ev_shift_pmcxsel;		//pmcxsel field
+int ev_mask_marked, ev_shift_marked;		//marked filed
+int ev_mask_comb, ev_shift_comb;		//combine field
+int ev_mask_unit, ev_shift_unit;		//unit field
+int ev_mask_pmc, ev_shift_pmc;			//pmc field
+int ev_mask_cache, ev_shift_cache;		//Cache sel field
+int ev_mask_sample, ev_shift_sample;		//Random sampling field
+int ev_mask_thd_sel, ev_shift_thd_sel;		//thresh_sel field
+int ev_mask_thd_start, ev_shift_thd_start;	//thresh_start field
+int ev_mask_thd_stop, ev_shift_thd_stop;	//thresh_stop field
+int ev_mask_thd_cmp, ev_shift_thd_cmp;		//thresh cmp field
+int ev_mask_sm, ev_shift_sm;			//SDAR mode field
+int ev_mask_rsq, ev_shift_rsq;			//radix scope qual field
+int ev_mask_l2l3, ev_shift_l2l3;		//l2l3 sel field
+int ev_mask_mmcr3_src, ev_shift_mmcr3_src;	//mmcr3 field
+
+static void init_ev_encodes(void)
+{
+	ev_mask_pmcxsel = 0xff;
+	ev_shift_pmcxsel = 0;
+	ev_mask_marked = 1;
+	ev_shift_marked = 8;
+	ev_mask_unit = 0xf;
+	ev_shift_unit = 12;
+	ev_mask_pmc = 0xf;
+	ev_shift_pmc = 16;
+	ev_mask_sample	= 0x1f;
+	ev_shift_sample = 24;
+	ev_mask_thd_sel = 0x7;
+	ev_shift_thd_sel = 29;
+	ev_mask_thd_start = 0xf;
+	ev_shift_thd_start = 36;
+	ev_mask_thd_stop = 0xf;
+	ev_shift_thd_stop = 32;
+
+	switch (pvr) {
+	case POWER11:
+	case POWER10:
+		ev_mask_thd_cmp = 0x3ffff;
+		ev_shift_thd_cmp = 0;
+		ev_mask_rsq = 1;
+		ev_shift_rsq = 9;
+		ev_mask_comb = 3;
+		ev_shift_comb = 10;
+		ev_mask_cache = 3;
+		ev_shift_cache = 20;
+		ev_mask_sm = 0x3;
+		ev_shift_sm = 22;
+		ev_mask_l2l3 = 0x1f;
+		ev_shift_l2l3 = 40;
+		ev_mask_mmcr3_src = 0x7fff;
+		ev_shift_mmcr3_src = 45;
+		break;
+	case POWER9:
+		ev_mask_comb = 3;
+		ev_shift_comb = 10;
+		ev_mask_cache = 0xf;
+		ev_shift_cache = 20;
+		ev_mask_thd_cmp = 0x3ff;
+		ev_shift_thd_cmp = 40;
+		ev_mask_sm = 0x3;
+		ev_shift_sm = 50;
+		break;
+	default:
+		FAIL_IF_EXIT(1);
+	}
+}
+
+/* Return the extended regs mask value */
+u64 perf_get_platform_reg_mask(void)
+{
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return PERF_POWER10_MASK;
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_00))
+		return PERF_POWER9_MASK;
+
+	return -1;
+}
+
+int check_extended_regs_support(void)
+{
+	int fd;
+	struct event event;
+
+	event_init(&event, 0x1001e);
+
+	event.attr.type = 4;
+	event.attr.sample_period = 1;
+	event.attr.disabled = 1;
+	event.attr.sample_type = PERF_SAMPLE_REGS_INTR;
+	event.attr.sample_regs_intr = platform_extended_mask;
+
+	fd = event_open(&event);
+	if (fd != -1)
+		return 0;
+
+	return -1;
+}
+
+int platform_check_for_tests(void)
+{
+	pvr = PVR_VER(mfspr(SPRN_PVR));
+
+	/*
+	 * Check for supported platforms
+	 * for sampling test
+	 */
+	switch (pvr) {
+	case POWER11:
+	case POWER10:
+	case POWER9:
+		break;
+	default:
+		goto out;
+	}
+
+	/*
+	 * Check PMU driver registered by looking for
+	 * PPC_FEATURE2_EBB bit in AT_HWCAP2
+	 */
+	if (!have_hwcap2(PPC_FEATURE2_EBB) || !have_hwcap2(PPC_FEATURE2_ARCH_3_00))
+		goto out;
+
+	return 0;
+
+out:
+	printf("%s: Tests unsupported for this platform\n", __func__);
+	return -1;
+}
+
+int check_pvr_for_sampling_tests(void)
+{
+	SKIP_IF(platform_check_for_tests());
+
+	platform_extended_mask = perf_get_platform_reg_mask();
+	/* check if platform supports extended regs */
+	if (check_extended_regs_support())
+		goto out;
+
+	init_ev_encodes();
+	return 0;
+
+out:
+	printf("%s: Sampling tests un-supported\n", __func__);
+	return -1;
+}
+
+/*
+ * Allocate mmap buffer of "mmap_pages" number of
+ * pages.
+ */
+void *event_sample_buf_mmap(int fd, int mmap_pages)
+{
+	size_t page_size = sysconf(_SC_PAGESIZE);
+	size_t mmap_size;
+	void *buff;
+
+	if (mmap_pages <= 0)
+		return NULL;
+
+	if (fd <= 0)
+		return NULL;
+
+	mmap_size =  page_size * (1 + mmap_pages);
+	buff = mmap(NULL, mmap_size,
+		PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+
+	if (buff == MAP_FAILED) {
+		perror("mmap() failed.");
+		return NULL;
+	}
+	return buff;
+}
+
+/*
+ * Post process the mmap buffer.
+ * - If sample_count != NULL then return count of total
+ *   number of samples present in the mmap buffer.
+ * - If sample_count == NULL then return the address
+ *   of first sample from the mmap buffer
+ */
+void *__event_read_samples(void *sample_buff, size_t *size, u64 *sample_count)
+{
+	size_t page_size = sysconf(_SC_PAGESIZE);
+	struct perf_event_header *header = sample_buff + page_size;
+	struct perf_event_mmap_page *metadata_page = sample_buff;
+	unsigned long data_head, data_tail;
+
+	/*
+	 * PERF_RECORD_SAMPLE:
+	 * struct {
+	 *     struct perf_event_header hdr;
+	 *     u64 data[];
+	 * };
+	 */
+
+	data_head = metadata_page->data_head;
+	/* sync memory before reading sample */
+	mb();
+	data_tail = metadata_page->data_tail;
+
+	/* Check for sample_count */
+	if (sample_count)
+		*sample_count = 0;
+
+	while (1) {
+		/*
+		 * Reads the mmap data buffer by moving
+		 * the data_tail to know the last read data.
+		 * data_head points to head in data buffer.
+		 * refer "struct perf_event_mmap_page" in
+		 * "include/uapi/linux/perf_event.h".
+		 */
+		if (data_head - data_tail < sizeof(header))
+			return NULL;
+
+		data_tail += sizeof(header);
+		if (header->type == PERF_RECORD_SAMPLE) {
+			*size = (header->size - sizeof(header));
+			if (!sample_count)
+				return sample_buff + page_size + data_tail;
+			data_tail += *size;
+			*sample_count += 1;
+		} else {
+			*size = (header->size - sizeof(header));
+			if ((metadata_page->data_tail + *size) > metadata_page->data_head)
+				data_tail = metadata_page->data_head;
+			else
+				data_tail += *size;
+		}
+		header = (struct perf_event_header *)((void *)header + header->size);
+	}
+	return NULL;
+}
+
+int collect_samples(void *sample_buff)
+{
+	u64 sample_count;
+	size_t size = 0;
+
+	__event_read_samples(sample_buff, &size, &sample_count);
+	return sample_count;
+}
+
+static void *perf_read_first_sample(void *sample_buff, size_t *size)
+{
+	return __event_read_samples(sample_buff, size, NULL);
+}
+
+u64 *get_intr_regs(struct event *event, void *sample_buff)
+{
+	u64 type = event->attr.sample_type;
+	u64 *intr_regs;
+	size_t size = 0;
+
+	if ((type ^ (PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_BRANCH_STACK)) &&
+			(type  ^ PERF_SAMPLE_REGS_INTR))
+		return NULL;
+
+	intr_regs = (u64 *)perf_read_first_sample(sample_buff, &size);
+	if (!intr_regs)
+		return NULL;
+
+	if (type & PERF_SAMPLE_BRANCH_STACK) {
+		/*
+		 * PERF_RECORD_SAMPLE and PERF_SAMPLE_BRANCH_STACK:
+		 * struct {
+		 *     struct perf_event_header hdr;
+		 *     u64 number_of_branches;
+		 *     struct perf_branch_entry[number_of_branches];
+		 *     u64 data[];
+		 * };
+		 * struct perf_branch_entry {
+		 *     u64	from;
+		 *     u64	to;
+		 *     u64	misc;
+		 * };
+		 */
+		intr_regs += ((*intr_regs) * 3) + 1;
+	}
+
+	/*
+	 * First entry in the sample buffer used to specify
+	 * PERF_SAMPLE_REGS_ABI_64, skip perf regs abi to access
+	 * interrupt registers.
+	 */
+	++intr_regs;
+
+	return intr_regs;
+}
+
+static const int __perf_reg_mask(const char *register_name)
+{
+	if (!strcmp(register_name, "R0"))
+		return 0;
+	else if (!strcmp(register_name, "R1"))
+		return 1;
+	else if (!strcmp(register_name, "R2"))
+		return 2;
+	else if (!strcmp(register_name, "R3"))
+		return 3;
+	else if (!strcmp(register_name, "R4"))
+		return 4;
+	else if (!strcmp(register_name, "R5"))
+		return 5;
+	else if (!strcmp(register_name, "R6"))
+		return 6;
+	else if (!strcmp(register_name, "R7"))
+		return 7;
+	else if (!strcmp(register_name, "R8"))
+		return 8;
+	else if (!strcmp(register_name, "R9"))
+		return 9;
+	else if (!strcmp(register_name, "R10"))
+		return 10;
+	else if (!strcmp(register_name, "R11"))
+		return 11;
+	else if (!strcmp(register_name, "R12"))
+		return 12;
+	else if (!strcmp(register_name, "R13"))
+		return 13;
+	else if (!strcmp(register_name, "R14"))
+		return 14;
+	else if (!strcmp(register_name, "R15"))
+		return 15;
+	else if (!strcmp(register_name, "R16"))
+		return 16;
+	else if (!strcmp(register_name, "R17"))
+		return 17;
+	else if (!strcmp(register_name, "R18"))
+		return 18;
+	else if (!strcmp(register_name, "R19"))
+		return 19;
+	else if (!strcmp(register_name, "R20"))
+		return 20;
+	else if (!strcmp(register_name, "R21"))
+		return 21;
+	else if (!strcmp(register_name, "R22"))
+		return 22;
+	else if (!strcmp(register_name, "R23"))
+		return 23;
+	else if (!strcmp(register_name, "R24"))
+		return 24;
+	else if (!strcmp(register_name, "R25"))
+		return 25;
+	else if (!strcmp(register_name, "R26"))
+		return 26;
+	else if (!strcmp(register_name, "R27"))
+		return 27;
+	else if (!strcmp(register_name, "R28"))
+		return 28;
+	else if (!strcmp(register_name, "R29"))
+		return 29;
+	else if (!strcmp(register_name, "R30"))
+		return 30;
+	else if (!strcmp(register_name, "R31"))
+		return 31;
+	else if (!strcmp(register_name, "NIP"))
+		return 32;
+	else if (!strcmp(register_name, "MSR"))
+		return 33;
+	else if (!strcmp(register_name, "ORIG_R3"))
+		return 34;
+	else if (!strcmp(register_name, "CTR"))
+		return 35;
+	else if (!strcmp(register_name, "LINK"))
+		return 36;
+	else if (!strcmp(register_name, "XER"))
+		return 37;
+	else if (!strcmp(register_name, "CCR"))
+		return 38;
+	else if (!strcmp(register_name, "SOFTE"))
+		return 39;
+	else if (!strcmp(register_name, "TRAP"))
+		return 40;
+	else if (!strcmp(register_name, "DAR"))
+		return 41;
+	else if (!strcmp(register_name, "DSISR"))
+		return 42;
+	else if (!strcmp(register_name, "SIER"))
+		return 43;
+	else if (!strcmp(register_name, "MMCRA"))
+		return 44;
+	else if (!strcmp(register_name, "MMCR0"))
+		return 45;
+	else if (!strcmp(register_name, "MMCR1"))
+		return 46;
+	else if (!strcmp(register_name, "MMCR2"))
+		return 47;
+	else if (!strcmp(register_name, "MMCR3"))
+		return 48;
+	else if (!strcmp(register_name, "SIER2"))
+		return 49;
+	else if (!strcmp(register_name, "SIER3"))
+		return 50;
+	else if (!strcmp(register_name, "PMC1"))
+		return 51;
+	else if (!strcmp(register_name, "PMC2"))
+		return 52;
+	else if (!strcmp(register_name, "PMC3"))
+		return 53;
+	else if (!strcmp(register_name, "PMC4"))
+		return 54;
+	else if (!strcmp(register_name, "PMC5"))
+		return 55;
+	else if (!strcmp(register_name, "PMC6"))
+		return 56;
+	else if (!strcmp(register_name, "SDAR"))
+		return 57;
+	else if (!strcmp(register_name, "SIAR"))
+		return 58;
+	else
+		return -1;
+}
+
+u64 get_reg_value(u64 *intr_regs, char *register_name)
+{
+	int register_bit_position;
+
+	register_bit_position = __perf_reg_mask(register_name);
+
+	if (register_bit_position < 0 || (!((platform_extended_mask >>
+			(register_bit_position - 1)) & 1)))
+		return -1;
+
+	return *(intr_regs + register_bit_position);
+}
+
+int get_thresh_cmp_val(struct event event)
+{
+	int exp = 0;
+	u64 result = 0;
+	u64 value;
+
+	if (!have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return EV_CODE_EXTRACT(event.attr.config, thd_cmp);
+
+	value = EV_CODE_EXTRACT(event.attr.config1, thd_cmp);
+
+	if (!value)
+		return value;
+
+	/*
+	 * Incase of P10, thresh_cmp value is not part of raw event code
+	 * and provided via attr.config1 parameter. To program threshold in MMCRA,
+	 * take a 18 bit number N and shift right 2 places and increment
+	 * the exponent E by 1 until the upper 10 bits of N are zero.
+	 * Write E to the threshold exponent and write the lower 8 bits of N
+	 * to the threshold mantissa.
+	 * The max threshold that can be written is 261120.
+	 */
+	if (value > 261120)
+		value = 261120;
+	while ((64 - __builtin_clzl(value)) > 8) {
+		exp++;
+		value >>= 2;
+	}
+
+	/*
+	 * Note that it is invalid to write a mantissa with the
+	 * upper 2 bits of mantissa being zero, unless the
+	 * exponent is also zero.
+	 */
+	if (!(value & 0xC0) && exp)
+		result = -1;
+	else
+		result = (exp << 8) | value;
+	return result;
+}
+
+/*
+ * Utility function to check for generic compat PMU
+ * by comparing base_platform value from auxv and real
+ * PVR value.
+ * auxv_base_platform() func gives information of "base platform"
+ * corresponding to PVR value. Incase, if the distro doesn't
+ * support platform PVR (missing cputable support), base platform
+ * in auxv will have a default value other than the real PVR's.
+ * In this case, ISAv3 PMU (generic compat PMU) will be registered
+ * in the system. auxv_generic_compat_pmu() makes use of the base
+ * platform value from auxv to do this check.
+ */
+static bool auxv_generic_compat_pmu(void)
+{
+	int base_pvr = 0;
+
+	if (!strcmp(auxv_base_platform(), "power9"))
+		base_pvr = POWER9;
+	else if (!strcmp(auxv_base_platform(), "power10"))
+		base_pvr = POWER10;
+	else if (!strcmp(auxv_base_platform(), "power11"))
+		base_pvr = POWER11;
+
+	return (!base_pvr);
+}
+
+/*
+ * Check for generic compat PMU.
+ * First check for presence of pmu_name from
+ * "/sys/bus/event_source/devices/cpu/caps".
+ * If doesn't exist, fallback to using value
+ * auxv.
+ */
+bool check_for_generic_compat_pmu(void)
+{
+	char pmu_name[256];
+
+	memset(pmu_name, 0, sizeof(pmu_name));
+	if (read_sysfs_file("bus/event_source/devices/cpu/caps/pmu_name",
+		pmu_name, sizeof(pmu_name)) < 0)
+		return auxv_generic_compat_pmu();
+
+	if (!strcmp(pmu_name, "ISAv3"))
+		return true;
+	else
+		return false;
+}
+
+/*
+ * Check if system is booted in compat mode.
+ */
+bool check_for_compat_mode(void)
+{
+	char *platform = auxv_platform();
+	char *base_platform = auxv_base_platform();
+
+	return strcmp(platform, base_platform);
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h
new file mode 100644
index 000000000000..357e9f0fc0f7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.h
@@ -0,0 +1,236 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ * Copyright 2022, Madhavan Srinivasan, IBM Corp.
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <sys/stat.h>
+#include "../event.h"
+
+#define POWER11 0x82
+#define POWER10 0x80
+#define POWER9  0x4e
+#define PERF_POWER9_MASK        0x7f8ffffffffffff
+#define PERF_POWER10_MASK       0x7ffffffffffffff
+#define PERF_POWER11_MASK       PERF_POWER10_MASK
+
+#define MMCR0_FC56      0x00000010UL /* freeze counters 5 and 6 */
+#define MMCR0_PMCCEXT   0x00000200UL /* PMCCEXT control */
+#define MMCR1_RSQ       0x200000000000ULL /* radix scope qual field */
+#define BHRB_DISABLE    0x2000000000ULL /* MMCRA BHRB DISABLE bit */
+
+extern int ev_mask_pmcxsel, ev_shift_pmcxsel;
+extern int ev_mask_marked, ev_shift_marked;
+extern int ev_mask_comb, ev_shift_comb;
+extern int ev_mask_unit, ev_shift_unit;
+extern int ev_mask_pmc, ev_shift_pmc;
+extern int ev_mask_cache, ev_shift_cache;
+extern int ev_mask_sample, ev_shift_sample;
+extern int ev_mask_thd_sel, ev_shift_thd_sel;
+extern int ev_mask_thd_start, ev_shift_thd_start;
+extern int ev_mask_thd_stop, ev_shift_thd_stop;
+extern int ev_mask_thd_cmp, ev_shift_thd_cmp;
+extern int ev_mask_sm, ev_shift_sm;
+extern int ev_mask_rsq, ev_shift_rsq;
+extern int ev_mask_l2l3, ev_shift_l2l3;
+extern int ev_mask_mmcr3_src, ev_shift_mmcr3_src;
+extern int pvr;
+extern u64 platform_extended_mask;
+extern int check_pvr_for_sampling_tests(void);
+extern int platform_check_for_tests(void);
+extern int check_extended_regs_support(void);
+extern u64 perf_get_platform_reg_mask(void);
+
+/*
+ * Event code field extraction macro.
+ * Raw event code is combination of multiple
+ * fields. Macro to extract individual fields
+ *
+ * x - Raw event code value
+ * y - Field to extract
+ */
+#define EV_CODE_EXTRACT(x, y)   \
+	((x >> ev_shift_##y) & ev_mask_##y)
+
+void *event_sample_buf_mmap(int fd, int mmap_pages);
+void *__event_read_samples(void *sample_buff, size_t *size, u64 *sample_count);
+int collect_samples(void *sample_buff);
+u64 *get_intr_regs(struct event *event, void *sample_buff);
+u64 get_reg_value(u64 *intr_regs, char *register_name);
+int get_thresh_cmp_val(struct event event);
+bool check_for_generic_compat_pmu(void);
+bool check_for_compat_mode(void);
+
+static inline int get_mmcr0_fc56(u64 mmcr0, int pmc)
+{
+	return (mmcr0 & MMCR0_FC56);
+}
+
+static inline int get_mmcr0_pmccext(u64 mmcr0, int pmc)
+{
+	return (mmcr0 & MMCR0_PMCCEXT);
+}
+
+static inline int get_mmcr0_pmao(u64 mmcr0, int pmc)
+{
+	return ((mmcr0 >> 7) & 0x1);
+}
+
+static inline int get_mmcr0_cc56run(u64 mmcr0, int pmc)
+{
+	return ((mmcr0 >> 8) & 0x1);
+}
+
+static inline int get_mmcr0_pmcjce(u64 mmcr0, int pmc)
+{
+	return ((mmcr0 >> 14) & 0x1);
+}
+
+static inline int get_mmcr0_pmc1ce(u64 mmcr0, int pmc)
+{
+	return ((mmcr0 >> 15) & 0x1);
+}
+
+static inline int get_mmcr0_pmae(u64 mmcr0, int pmc)
+{
+	return ((mmcr0 >> 27) & 0x1);
+}
+
+static inline int get_mmcr1_pmcxsel(u64 mmcr1, int pmc)
+{
+	return ((mmcr1 >> ((24 - (((pmc) - 1) * 8))) & 0xff));
+}
+
+static inline int get_mmcr1_unit(u64 mmcr1, int pmc)
+{
+	return ((mmcr1 >> ((60 - (4 * ((pmc) - 1))))) & 0xf);
+}
+
+static inline int get_mmcr1_comb(u64 mmcr1, int pmc)
+{
+	return ((mmcr1 >> (38 - ((pmc - 1) * 2))) & 0x3);
+}
+
+static inline int get_mmcr1_cache(u64 mmcr1, int pmc)
+{
+	return ((mmcr1 >> 46) & 0x3);
+}
+
+static inline int get_mmcr1_rsq(u64 mmcr1, int pmc)
+{
+	return mmcr1 & MMCR1_RSQ;
+}
+
+static inline int get_mmcr2_fcs(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (63 - (((pmc) - 1) * 9)))) >> (63 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcp(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (62 - (((pmc) - 1) * 9)))) >> (62 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcpc(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (61 - (((pmc) - 1) * 9)))) >> (61 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcm1(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (60 - (((pmc) - 1) * 9)))) >> (60 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcm0(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (59 - (((pmc) - 1) * 9)))) >> (59 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcwait(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (58 - (((pmc) - 1) * 9)))) >> (58 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fch(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (57 - (((pmc) - 1) * 9)))) >> (57 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcti(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (56 - (((pmc) - 1) * 9)))) >> (56 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_fcta(u64 mmcr2, int pmc)
+{
+	return ((mmcr2 & (1ull << (55 - (((pmc) - 1) * 9)))) >> (55 - (((pmc) - 1) * 9)));
+}
+
+static inline int get_mmcr2_l2l3(u64 mmcr2, int pmc)
+{
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return ((mmcr2 & 0xf8) >> 3);
+	return 0;
+}
+
+static inline int get_mmcr3_src(u64 mmcr3, int pmc)
+{
+	if (!have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return 0;
+	return ((mmcr3 >> ((49 - (15 * ((pmc) - 1))))) & 0x7fff);
+}
+
+static inline int get_mmcra_thd_cmp(u64 mmcra, int pmc)
+{
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return ((mmcra >> 45) & 0x7ff);
+	return ((mmcra >> 45) & 0x3ff);
+}
+
+static inline int get_mmcra_sm(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 42) & 0x3);
+}
+
+static inline u64 get_mmcra_bhrb_disable(u64 mmcra, int pmc)
+{
+	if (have_hwcap2(PPC_FEATURE2_ARCH_3_1))
+		return mmcra & BHRB_DISABLE;
+	return 0;
+}
+
+static inline int get_mmcra_ifm(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 30) & 0x3);
+}
+
+static inline int get_mmcra_thd_sel(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 16) & 0x7);
+}
+
+static inline int get_mmcra_thd_start(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 12) & 0xf);
+}
+
+static inline int get_mmcra_thd_stop(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 8) & 0xf);
+}
+
+static inline int get_mmcra_rand_samp_elig(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 4) & 0x7);
+}
+
+static inline int get_mmcra_sample_mode(u64 mmcra, int pmc)
+{
+	return ((mmcra >> 1) & 0x3);
+}
+
+static inline int get_mmcra_marked(u64 mmcra, int pmc)
+{
+	return mmcra & 0x1;
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_cc56run_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_cc56run_test.c
new file mode 100644
index 000000000000..ae4172f83817
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_cc56run_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * field: cc56run.
+ */
+static int mmcr0_cc56run(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, 0x500fa);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that cc56run bit is set in MMCR0 */
+	FAIL_IF(!get_mmcr0_cc56run(get_reg_value(intr_regs, "MMCR0"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_cc56run, "mmcr0_cc56run");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_exceptionbits_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_exceptionbits_test.c
new file mode 100644
index 000000000000..982aa56d2171
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_exceptionbits_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * fields : pmae, pmao.
+ */
+static int mmcr0_exceptionbits(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x500fa);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that pmae is cleared and pmao is set in MMCR0 */
+	FAIL_IF(get_mmcr0_pmae(get_reg_value(intr_regs, "MMCR0"), 5));
+	FAIL_IF(!get_mmcr0_pmao(get_reg_value(intr_regs, "MMCR0"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_exceptionbits, "mmcr0_exceptionbits");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc1ce_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc1ce_test.c
new file mode 100644
index 000000000000..1c1813c182c0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc1ce_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * fields: fc56, pmc1ce.
+ */
+static int mmcr0_fc56_pmc1ce(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x1001e);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that fc56, pmc1ce fields are set in MMCR0 */
+	FAIL_IF(!get_mmcr0_fc56(get_reg_value(intr_regs, "MMCR0"), 1));
+	FAIL_IF(!get_mmcr0_pmc1ce(get_reg_value(intr_regs, "MMCR0"), 1));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_fc56_pmc1ce, "mmcr0_fc56_pmc1ce");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc56_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc56_test.c
new file mode 100644
index 000000000000..332d24b5ab9c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_fc56_pmc56_test.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * fields: fc56_pmc56
+ */
+static int mmcr0_fc56_pmc56(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	 /* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x500fa);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that fc56 is not set in MMCR0 when using PMC5 */
+	FAIL_IF(get_mmcr0_fc56(get_reg_value(intr_regs, "MMCR0"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_fc56_pmc56, "mmcr0_fc56_pmc56");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmccext_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmccext_test.c
new file mode 100644
index 000000000000..dfd186cd8eec
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmccext_test.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * field: pmccext
+ */
+static int mmcr0_pmccext(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x4001e);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that pmccext field is set in MMCR0 */
+	FAIL_IF(!get_mmcr0_pmccext(get_reg_value(intr_regs, "MMCR0"), 4));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_pmccext, "mmcr0_pmccext");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmcjce_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmcjce_test.c
new file mode 100644
index 000000000000..fdd8ed9bf725
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr0_pmcjce_test.c
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/*
+ * A perf sampling test for mmcr0
+ * field: pmcjce
+ */
+static int mmcr0_pmcjce(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x500fa);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that pmcjce field is set in MMCR0 */
+	FAIL_IF(!get_mmcr0_pmcjce(get_reg_value(intr_regs, "MMCR0"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr0_pmcjce, "mmcr0_pmcjce");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_comb_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_comb_test.c
new file mode 100644
index 000000000000..5aea6499ee9a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_comb_test.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/* All successful D-side store dispatches for this thread that were L2 Miss */
+#define EventCode 0x46880
+
+extern void thirty_two_instruction_loop_with_ll_sc(u64 loops, u64 *ll_sc_target);
+
+/*
+ * A perf sampling test for mmcr1
+ * fields : comb.
+ */
+static int mmcr1_comb(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	u64 dummy;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop_with_ll_sc(10000000, &dummy);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that comb field match with
+	 * corresponding event code fields
+	 */
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, comb) !=
+		get_mmcr1_comb(get_reg_value(intr_regs, "MMCR1"), 4));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr1_comb, "mmcr1_comb");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_sel_unit_cache_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_sel_unit_cache_test.c
new file mode 100644
index 000000000000..f0c003282630
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr1_sel_unit_cache_test.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Athira Rajeev, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+#define MALLOC_SIZE     (0x10000 * 10)  /* Ought to be enough .. */
+
+/* The data cache was reloaded from local core's L3 due to a demand load */
+#define EventCode 0x21c040
+
+/*
+ * A perf sampling test for mmcr1
+ * fields : pmcxsel, unit, cache.
+ */
+static int mmcr1_sel_unit_cache(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	char *p;
+	int i;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	p = malloc(MALLOC_SIZE);
+	FAIL_IF(!p);
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.sample_period = 1;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	event_enable(&event);
+
+	/* workload to make the event overflow */
+	for (i = 0; i < MALLOC_SIZE; i += 0x10000)
+		p[i] = i;
+
+	event_disable(&event);
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that  pmcxsel, unit and cache field of MMCR1
+	 * match with corresponding event code fields
+	 */
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, pmcxsel) !=
+			get_mmcr1_pmcxsel(get_reg_value(intr_regs, "MMCR1"), 1));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, unit) !=
+			get_mmcr1_unit(get_reg_value(intr_regs, "MMCR1"), 1));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, cache) !=
+			get_mmcr1_cache(get_reg_value(intr_regs, "MMCR1"), 1));
+
+	free(p);
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	FAIL_IF(test_harness(mmcr1_sel_unit_cache, "mmcr1_sel_unit_cache"));
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_fcs_fch_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_fcs_fch_test.c
new file mode 100644
index 000000000000..4e242fd61b25
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_fcs_fch_test.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Madhavan Srinivasan, IBM Corp.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+static bool is_hv;
+
+static void sig_usr2_handler(int signum, siginfo_t *info, void *data)
+{
+	ucontext_t *uctx = data;
+
+	is_hv = !!(uctx->uc_mcontext.gp_regs[PT_MSR] & MSR_HV);
+}
+
+/*
+ * A perf sampling test for mmcr2
+ * fields : fcs, fch.
+ */
+static int mmcr2_fcs_fch(void)
+{
+	struct sigaction sigact = {
+		.sa_sigaction = sig_usr2_handler,
+		.sa_flags = SA_SIGINFO
+	};
+	struct event event;
+	u64 *intr_regs;
+
+	FAIL_IF(sigaction(SIGUSR2, &sigact, NULL));
+	FAIL_IF(kill(getpid(), SIGUSR2));
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, 0x1001e);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.exclude_kernel = 1;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that fcs and fch field of MMCR2 match
+	 * with corresponding modifier fields.
+	 */
+	if (is_hv)
+		FAIL_IF(event.attr.exclude_kernel !=
+			get_mmcr2_fch(get_reg_value(intr_regs, "MMCR2"), 1));
+	else
+		FAIL_IF(event.attr.exclude_kernel !=
+			get_mmcr2_fcs(get_reg_value(intr_regs, "MMCR2"), 1));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr2_fcs_fch, "mmcr2_fcs_fch");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_l2l3_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_l2l3_test.c
new file mode 100644
index 000000000000..ceca597016b2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr2_l2l3_test.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Madhavan Srinivasan, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/* All successful D-side store dispatches for this thread */
+#define EventCode 0x010000046080
+
+#define MALLOC_SIZE     (0x10000 * 10)  /* Ought to be enough .. */
+
+/*
+ * A perf sampling test for mmcr2
+ * fields : l2l3
+ */
+static int mmcr2_l2l3(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	char *p;
+	int i;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	p = malloc(MALLOC_SIZE);
+	FAIL_IF(!p);
+
+	for (i = 0; i < MALLOC_SIZE; i += 0x10000)
+		p[i] = i;
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that l2l3 field of MMCR2 match with
+	 * corresponding event code field
+	 */
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, l2l3) !=
+		get_mmcr2_l2l3(get_reg_value(intr_regs, "MMCR2"), 4));
+
+	event_close(&event);
+	free(p);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr2_l2l3, "mmcr2_l2l3");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr3_src_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr3_src_test.c
new file mode 100644
index 000000000000..e154e2a4cc3a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcr3_src_test.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop_with_ll_sc(u64 loops, u64 *ll_sc_target);
+
+/* The data cache was reloaded from local core's L3 due to a demand load */
+#define EventCode 0x1340000001c040
+
+/*
+ * A perf sampling test for mmcr3
+ * fields.
+ */
+static int mmcr3_src(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	u64 dummy;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make event overflow */
+	thirty_two_instruction_loop_with_ll_sc(1000000, &dummy);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that src field of MMCR3 match with
+	 * corresponding event code field
+	 */
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, mmcr3_src) !=
+		get_mmcr3_src(get_reg_value(intr_regs, "MMCR3"), 1));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcr3_src, "mmcr3_src");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_any_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_any_test.c
new file mode 100644
index 000000000000..14854694af62
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_any_test.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/* Instructions */
+#define EventCode 0x500fa
+
+/* ifm field for any branch mode */
+#define IFM_ANY_BRANCH 0x0
+
+/*
+ * A perf sampling test for mmcra
+ * field: ifm for bhrb any call.
+ */
+static int mmcra_bhrb_any_test(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.sample_type |= PERF_SAMPLE_BRANCH_STACK;
+	event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_ANY;
+	event.attr.exclude_kernel = 1;
+
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that ifm bit is set properly in MMCRA */
+	FAIL_IF(get_mmcra_ifm(get_reg_value(intr_regs, "MMCRA"), 5) != IFM_ANY_BRANCH);
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_bhrb_any_test, "mmcra_bhrb_any_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c
new file mode 100644
index 000000000000..809de8d58b3b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_cond_test.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/* Instructions */
+#define EventCode 0x500fa
+
+/* ifm field for conditional branch mode */
+#define IFM_COND_BRANCH 0x3
+
+/*
+ * A perf sampling test for mmcra
+ * field: ifm for bhrb cond call.
+ */
+static int mmcra_bhrb_cond_test(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is only aplicable on ISA v3.1
+	 */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.sample_type |= PERF_SAMPLE_BRANCH_STACK;
+	event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_COND;
+	event.attr.exclude_kernel = 1;
+
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that ifm bit is set properly in MMCRA */
+	FAIL_IF(get_mmcra_ifm(get_reg_value(intr_regs, "MMCRA"), 5) != IFM_COND_BRANCH);
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_bhrb_cond_test, "mmcra_bhrb_cond_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c
new file mode 100644
index 000000000000..fa0dc15f9123
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_no_branch_test.c
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/* Instructions */
+#define EventCode 0x500fa
+
+/*
+ * A perf sampling test for mmcra
+ * field: bhrb_disable.
+ */
+static int mmcra_bhrb_disable_no_branch_test(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is only aplicable on ISA v3.1
+	 */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.exclude_kernel = 1;
+
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that bhrb_disable bit is set in MMCRA for non-branch samples */
+	FAIL_IF(!get_mmcra_bhrb_disable(get_reg_value(intr_regs, "MMCRA"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_bhrb_disable_no_branch_test, "mmcra_bhrb_disable_no_branch_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c
new file mode 100644
index 000000000000..bc3161ab003d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_disable_test.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void thirty_two_instruction_loop(int loops);
+
+/* Instructions */
+#define EventCode 0x500fa
+
+/*
+ * A perf sampling test for mmcra
+ * field: bhrb_disable.
+ */
+static int mmcra_bhrb_disable_test(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is only aplicable on ISA v3.1
+	 */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.sample_type |= PERF_SAMPLE_BRANCH_STACK;
+	event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_ANY;
+	event.attr.exclude_kernel = 1;
+
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop(10000);
+
+	FAIL_IF(event_disable(&event));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that bhrb_disable bit is set in MMCRA */
+	FAIL_IF(get_mmcra_bhrb_disable(get_reg_value(intr_regs, "MMCRA"), 5));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_bhrb_disable_test, "mmcra_bhrb_disable_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c
new file mode 100644
index 000000000000..fd6c9f12212c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_bhrb_ind_call_test.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+extern void indirect_branch_loop(void);
+
+/* Instructions */
+#define EventCode 0x500fa
+
+/* ifm field for indirect branch mode */
+#define IFM_IND_BRANCH 0x2
+
+/*
+ * A perf sampling test for mmcra
+ * field: ifm for bhrb ind_call.
+ */
+static int mmcra_bhrb_ind_call_test(void)
+{
+	struct event event;
+	u64 *intr_regs;
+
+	/*
+	 * Check for platform support for the test.
+	 * This test is only aplicable on ISA v3.1
+	 */
+	SKIP_IF(check_pvr_for_sampling_tests());
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_3_1));
+
+	 /* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	event.attr.sample_type |= PERF_SAMPLE_BRANCH_STACK;
+	event.attr.branch_sample_type = PERF_SAMPLE_BRANCH_IND_CALL;
+	event.attr.exclude_kernel = 1;
+
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	indirect_branch_loop();
+
+	FAIL_IF(event_disable(&event));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that ifm bit is set properly in MMCRA */
+	FAIL_IF(get_mmcra_ifm(get_reg_value(intr_regs, "MMCRA"), 5) != IFM_IND_BRANCH);
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_bhrb_ind_call_test, "mmcra_bhrb_ind_call_test");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_cmp_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_cmp_test.c
new file mode 100644
index 000000000000..904362f172c9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_cmp_test.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * Primary PMU event used here is PM_MRK_INST_CMPL (0x401e0)
+ * Threshold event selection used is issue to complete for cycles
+ * Sampling criteria is Load only sampling
+ */
+#define p9_EventCode 0x13E35340401e0
+#define p10_EventCode 0x35340401e0
+
+extern void thirty_two_instruction_loop_with_ll_sc(u64 loops, u64 *ll_sc_target);
+
+/* A perf sampling test to test mmcra fields */
+static int mmcra_thresh_cmp(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	u64 dummy;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Skip for comapt mode */
+	SKIP_IF(check_for_compat_mode());
+
+	/* Init the event for the sampling test */
+	if (!have_hwcap2(PPC_FEATURE2_ARCH_3_1)) {
+		event_init_sampling(&event, p9_EventCode);
+	} else {
+		event_init_sampling(&event, p10_EventCode);
+		event.attr.config1 = 1000;
+	}
+
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop_with_ll_sc(1000000, &dummy);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/* Verify that thresh cmp match with the corresponding event code fields */
+	FAIL_IF(get_thresh_cmp_val(event) !=
+			get_mmcra_thd_cmp(get_reg_value(intr_regs, "MMCRA"), 4));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	FAIL_IF(test_harness(mmcra_thresh_cmp, "mmcra_thresh_cmp"));
+}
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c
new file mode 100644
index 000000000000..75527876ad3c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022, Kajol Jain, IBM Corp.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../event.h"
+#include "misc.h"
+#include "utils.h"
+
+/*
+ * Primary PMU event used here is PM_MRK_INST_CMPL (0x401e0)
+ * Threshold event selection used is issue to complete for cycles
+ * Sampling criteria is Load only sampling
+ */
+#define EventCode 0x35340401e0
+
+extern void thirty_two_instruction_loop_with_ll_sc(u64 loops, u64 *ll_sc_target);
+
+/* A perf sampling test to test mmcra fields */
+static int mmcra_thresh_marked_sample(void)
+{
+	struct event event;
+	u64 *intr_regs;
+	u64 dummy;
+
+	/* Check for platform support for the test */
+	SKIP_IF(check_pvr_for_sampling_tests());
+
+	/* Init the event for the sampling test */
+	event_init_sampling(&event, EventCode);
+	event.attr.sample_regs_intr = platform_extended_mask;
+	FAIL_IF(event_open(&event));
+	event.mmap_buffer = event_sample_buf_mmap(event.fd, 1);
+
+	FAIL_IF(event_enable(&event));
+
+	/* workload to make the event overflow */
+	thirty_two_instruction_loop_with_ll_sc(1000000, &dummy);
+
+	FAIL_IF(event_disable(&event));
+
+	/* Check for sample count */
+	FAIL_IF(!collect_samples(event.mmap_buffer));
+
+	intr_regs = get_intr_regs(&event, event.mmap_buffer);
+
+	/* Check for intr_regs */
+	FAIL_IF(!intr_regs);
+
+	/*
+	 * Verify that thresh sel/start/stop, marked, random sample
+	 * eligibility, sdar mode and sample mode fields match with
+	 * the corresponding event code fields
+	 */
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, thd_sel) !=
+			get_mmcra_thd_sel(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, thd_start) !=
+			get_mmcra_thd_start(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, thd_stop) !=
+			get_mmcra_thd_stop(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, marked) !=
+			get_mmcra_marked(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF((EV_CODE_EXTRACT(event.attr.config, sample) >> 2) !=
+			get_mmcra_rand_samp_elig(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF((EV_CODE_EXTRACT(event.attr.config, sample) & 0x3) !=
+			get_mmcra_sample_mode(get_reg_value(intr_regs, "MMCRA"), 4));
+	FAIL_IF(EV_CODE_EXTRACT(event.attr.config, sm) !=
+			get_mmcra_sm(get_reg_value(intr_regs, "MMCRA"), 4));
+
+	event_close(&event);
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(mmcra_thresh_marked_sample, "mmcra_thresh_marked_sample");
+}
diff --git a/tools/testing/selftests/powerpc/pmu/settings b/tools/testing/selftests/powerpc/pmu/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/pmu/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/primitives/.gitignore b/tools/testing/selftests/powerpc/primitives/.gitignore
index 4cc4e31bed1d..1e5c04e24254 100644
--- a/tools/testing/selftests/powerpc/primitives/.gitignore
+++ b/tools/testing/selftests/powerpc/primitives/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 load_unaligned_zeropad
diff --git a/tools/testing/selftests/powerpc/primitives/Makefile b/tools/testing/selftests/powerpc/primitives/Makefile
index b68c6221d3d1..23bd9a7590dd 100644
--- a/tools/testing/selftests/powerpc/primitives/Makefile
+++ b/tools/testing/selftests/powerpc/primitives/Makefile
@@ -1,12 +1,10 @@
-CFLAGS += -I$(CURDIR)
-
-TEST_PROGS := load_unaligned_zeropad
-
-all: $(TEST_PROGS)
-
-$(TEST_PROGS): ../harness.c
+# SPDX-License-Identifier: GPL-2.0-only
+TEST_GEN_PROGS := load_unaligned_zeropad
 
+top_srcdir = ../../../../..
 include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += -I$(CURDIR)
 
-clean:
-	rm -f $(TEST_PROGS) *.o
+$(TEST_GEN_PROGS): ../harness.c
diff --git a/tools/testing/selftests/powerpc/primitives/asm/asm-const.h b/tools/testing/selftests/powerpc/primitives/asm/asm-const.h
new file mode 120000
index 000000000000..18d8be13e67f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/asm-const.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/asm/asm-const.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/primitives/asm/extable.h b/tools/testing/selftests/powerpc/primitives/asm/extable.h
new file mode 120000
index 000000000000..6385f059a951
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/extable.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/asm/extable.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/primitives/asm/feature-fixups.h b/tools/testing/selftests/powerpc/primitives/asm/feature-fixups.h
new file mode 120000
index 000000000000..8dc6d4d46e8e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/feature-fixups.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/asm/feature-fixups.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/primitives/asm/firmware.h b/tools/testing/selftests/powerpc/primitives/asm/firmware.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/firmware.h
diff --git a/tools/testing/selftests/powerpc/primitives/asm/ppc_asm.h b/tools/testing/selftests/powerpc/primitives/asm/ppc_asm.h
new file mode 120000
index 000000000000..66c8193224e9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/ppc_asm.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/asm/ppc_asm.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/primitives/asm/processor.h b/tools/testing/selftests/powerpc/primitives/asm/processor.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/asm/processor.h
diff --git a/tools/testing/selftests/powerpc/primitives/linux/bitops.h b/tools/testing/selftests/powerpc/primitives/linux/bitops.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/linux/bitops.h
diff --git a/tools/testing/selftests/powerpc/primitives/linux/stringify.h b/tools/testing/selftests/powerpc/primitives/linux/stringify.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/linux/stringify.h
diff --git a/tools/testing/selftests/powerpc/primitives/linux/wordpart.h b/tools/testing/selftests/powerpc/primitives/linux/wordpart.h
new file mode 120000
index 000000000000..4a74d2cbbc9b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/linux/wordpart.h
@@ -0,0 +1 @@
+../../../../../../include/linux/wordpart.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
index d1b647509596..1439c8c7ff38 100644
--- a/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
+++ b/tools/testing/selftests/powerpc/primitives/load_unaligned_zeropad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Userspace test harness for load_unaligned_zeropad. Creates two
  * pages and uses mprotect to prevent access to the second page and
@@ -8,11 +9,6 @@
  * performed while access to the second page is enabled via mprotect.
  *
  * Copyright (C) 2014 Anton Blanchard <anton@au.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
  */
 
 #include <stdlib.h>
@@ -25,10 +21,19 @@
 
 #define FIXUP_SECTION ".ex_fixup"
 
+static inline unsigned long __fls(unsigned long x);
+
 #include "word-at-a-time.h"
 
 #include "utils.h"
 
+static inline unsigned long __fls(unsigned long x)
+{
+	int lz;
+
+	asm (PPC_CNTLZL "%0,%1" : "=r" (lz) : "r" (x));
+	return sizeof(unsigned long) - 1 - lz;
+}
 
 static int page_size;
 static char *mem_region;
@@ -56,28 +61,23 @@ static int unprotect_region(void)
 extern char __start___ex_table[];
 extern char __stop___ex_table[];
 
-#if defined(__powerpc64__)
-#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.gp_regs[PT_NIP]
-#elif defined(__powerpc__)
-#define UCONTEXT_NIA(UC)	(UC)->uc_mcontext.uc_regs->gregs[PT_NIP]
-#else
-#error implement UCONTEXT_NIA
-#endif
-
-static int segv_error;
+struct extbl_entry {
+	int insn;
+	int fixup;
+};
 
 static void segv_handler(int signr, siginfo_t *info, void *ptr)
 {
 	ucontext_t *uc = (ucontext_t *)ptr;
 	unsigned long addr = (unsigned long)info->si_addr;
 	unsigned long *ip = &UCONTEXT_NIA(uc);
-	unsigned long *ex_p = (unsigned long *)__start___ex_table;
+	struct extbl_entry *entry = (struct extbl_entry *)__start___ex_table;
 
-	while (ex_p < (unsigned long *)__stop___ex_table) {
+	while (entry < (struct extbl_entry *)__stop___ex_table) {
 		unsigned long insn, fixup;
 
-		insn = *ex_p++;
-		fixup = *ex_p++;
+		insn  = (unsigned long)&entry->insn + entry->insn;
+		fixup = (unsigned long)&entry->fixup + entry->fixup;
 
 		if (insn == *ip) {
 			*ip = fixup;
@@ -86,7 +86,7 @@ static void segv_handler(int signr, siginfo_t *info, void *ptr)
 	}
 
 	printf("No exception table match for NIA %lx ADDR %lx\n", *ip, addr);
-	segv_error++;
+	abort();
 }
 
 static void setup_segv_handler(void)
@@ -110,8 +110,10 @@ static int do_one_test(char *p, int page_offset)
 
 	got = load_unaligned_zeropad(p);
 
-	if (should != got)
+	if (should != got) {
 		printf("offset %u load_unaligned_zeropad returned 0x%lx, should be 0x%lx\n", page_offset, got, should);
+		return 1;
+	}
 
 	return 0;
 }
@@ -136,8 +138,6 @@ static int test_body(void)
 	for (i = 0; i < page_size; i++)
 		FAIL_IF(do_one_test(mem_region+i, i));
 
-	FAIL_IF(segv_error);
-
 	return 0;
 }
 
diff --git a/tools/testing/selftests/powerpc/primitives/settings b/tools/testing/selftests/powerpc/primitives/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/primitives/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/ptrace/.gitignore b/tools/testing/selftests/powerpc/ptrace/.gitignore
new file mode 100644
index 000000000000..eb75e5360e31
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/.gitignore
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0-only
+ptrace-gpr
+ptrace-tm-gpr
+ptrace-tm-spd-gpr
+ptrace-tar
+ptrace-tm-tar
+ptrace-tm-spd-tar
+ptrace-vsx
+ptrace-tm-vsx
+ptrace-tm-spd-vsx
+ptrace-tm-spr
+ptrace-hwbreak
+perf-hwbreak
+core-pkey
+ptrace-pkey
+ptrace-syscall
+ptrace-perf-hwbreak
diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile
new file mode 100644
index 000000000000..59ca01d8567e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/Makefile
@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TM_TESTS := ptrace-tm-gpr
+TM_TESTS += ptrace-tm-spd-gpr
+TM_TESTS += ptrace-tm-spd-tar
+TM_TESTS += ptrace-tm-spd-vsx
+TM_TESTS += ptrace-tm-spr
+TM_TESTS += ptrace-tm-tar
+TM_TESTS += ptrace-tm-vsx
+
+TESTS_64 := $(TM_TESTS)
+TESTS_64 += core-pkey
+TESTS_64 += perf-hwbreak
+TESTS_64 += ptrace-hwbreak
+TESTS_64 += ptrace-perf-hwbreak
+TESTS_64 += ptrace-pkey
+TESTS_64 += ptrace-syscall
+TESTS_64 += ptrace-tar
+TESTS_64 += ptrace-vsx
+
+TESTS += ptrace-gpr
+
+TEST_GEN_PROGS := $(TESTS) $(TESTS_64)
+
+LOCAL_HDRS += $(patsubst %,$(selfdir)/powerpc/ptrace/%,$(wildcard *.h))
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+TM_TESTS := $(patsubst %,$(OUTPUT)/%,$(TM_TESTS))
+TESTS_64 := $(patsubst %,$(OUTPUT)/%,$(TESTS_64))
+
+$(TESTS_64): CFLAGS += -m64
+$(TM_TESTS): CFLAGS += -I../tm -mhtm
+
+CFLAGS += $(KHDR_INCLUDES) -fno-pie
+
+$(OUTPUT)/ptrace-gpr: ptrace-gpr.S
+$(OUTPUT)/ptrace-perf-hwbreak: ptrace-perf-asm.S
+$(OUTPUT)/ptrace-pkey $(OUTPUT)/core-pkey: LDLIBS += -pthread
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c ../lib/reg.S
diff --git a/tools/testing/selftests/powerpc/ptrace/child.h b/tools/testing/selftests/powerpc/ptrace/child.h
new file mode 100644
index 000000000000..df62ff0735f7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/child.h
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Helper functions to sync execution between parent and child processes.
+ *
+ * Copyright 2018, Thiago Jung Bauermann, IBM Corporation.
+ */
+#include <stdio.h>
+#include <stdbool.h>
+#include <semaphore.h>
+
+/*
+ * Information in a shared memory location for synchronization between child and
+ * parent.
+ */
+struct child_sync {
+	/* The parent waits on this semaphore. */
+	sem_t sem_parent;
+
+	/* If true, the child should give up as well. */
+	bool parent_gave_up;
+
+	/* The child waits on this semaphore. */
+	sem_t sem_child;
+
+	/* If true, the parent should give up as well. */
+	bool child_gave_up;
+};
+
+#define CHILD_FAIL_IF(x, sync)						\
+	do {								\
+		if (x) {						\
+			fprintf(stderr,					\
+				"[FAIL] Test FAILED on line %d\n", __LINE__); \
+			(sync)->child_gave_up = true;			\
+			prod_parent(sync);				\
+			return 1;					\
+		}							\
+	} while (0)
+
+#define PARENT_FAIL_IF(x, sync)						\
+	do {								\
+		if (x) {						\
+			fprintf(stderr,					\
+				"[FAIL] Test FAILED on line %d\n", __LINE__); \
+			(sync)->parent_gave_up = true;			\
+			prod_child(sync);				\
+			return 1;					\
+		}							\
+	} while (0)
+
+#define PARENT_SKIP_IF_UNSUPPORTED(x, sync, msg)			\
+	do {								\
+		if ((x) == -1 && (errno == ENODEV || errno == EINVAL)) { \
+			(sync)->parent_gave_up = true;			\
+			prod_child(sync);				\
+			SKIP_IF_MSG(1, msg);				\
+		}							\
+	} while (0)
+
+int init_child_sync(struct child_sync *sync)
+{
+	int ret;
+
+	ret = sem_init(&sync->sem_parent, 1, 0);
+	if (ret) {
+		perror("Semaphore initialization failed");
+		return 1;
+	}
+
+	ret = sem_init(&sync->sem_child, 1, 0);
+	if (ret) {
+		perror("Semaphore initialization failed");
+		return 1;
+	}
+
+	return 0;
+}
+
+void destroy_child_sync(struct child_sync *sync)
+{
+	sem_destroy(&sync->sem_parent);
+	sem_destroy(&sync->sem_child);
+}
+
+int wait_child(struct child_sync *sync)
+{
+	int ret;
+
+	/* Wait until the child prods us. */
+	ret = sem_wait(&sync->sem_parent);
+	if (ret) {
+		perror("Error waiting for child");
+		return 1;
+	}
+
+	return sync->child_gave_up;
+}
+
+int prod_child(struct child_sync *sync)
+{
+	int ret;
+
+	/* Unblock the child now. */
+	ret = sem_post(&sync->sem_child);
+	if (ret) {
+		perror("Error prodding child");
+		return 1;
+	}
+
+	return 0;
+}
+
+int wait_parent(struct child_sync *sync)
+{
+	int ret;
+
+	/* Wait until the parent prods us. */
+	ret = sem_wait(&sync->sem_child);
+	if (ret) {
+		perror("Error waiting for parent");
+		return 1;
+	}
+
+	return sync->parent_gave_up;
+}
+
+int prod_parent(struct child_sync *sync)
+{
+	int ret;
+
+	/* Unblock the parent now. */
+	ret = sem_post(&sync->sem_parent);
+	if (ret) {
+		perror("Error prodding parent");
+		return 1;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/core-pkey.c b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
new file mode 100644
index 000000000000..7ff53caeb4aa
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
@@ -0,0 +1,423 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Ptrace test for Memory Protection Key registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ * Copyright (C) 2018 IBM Corporation.
+ */
+#include <limits.h>
+#include <linux/kernel.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include "ptrace.h"
+#include "child.h"
+#include "pkeys.h"
+
+#define CORE_FILE_LIMIT	(5 * 1024 * 1024)	/* 5 MB should be enough */
+
+static const char core_pattern_file[] = "/proc/sys/kernel/core_pattern";
+
+static const char user_write[] = "[User Write (Running)]";
+static const char core_read_running[] = "[Core Read (Running)]";
+
+/* Information shared between the parent and the child. */
+struct shared_info {
+	struct child_sync child_sync;
+
+	/* AMR value the parent expects to read in the core file. */
+	unsigned long amr;
+
+	/* IAMR value the parent expects to read in the core file. */
+	unsigned long iamr;
+
+	/* UAMOR value the parent expects to read in the core file. */
+	unsigned long uamor;
+
+	/* When the child crashed. */
+	time_t core_time;
+};
+
+static int increase_core_file_limit(void)
+{
+	struct rlimit rlim;
+	int ret;
+
+	ret = getrlimit(RLIMIT_CORE, &rlim);
+	FAIL_IF(ret);
+
+	if (rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur < CORE_FILE_LIMIT) {
+		rlim.rlim_cur = CORE_FILE_LIMIT;
+
+		if (rlim.rlim_max != RLIM_INFINITY &&
+		    rlim.rlim_max < CORE_FILE_LIMIT)
+			rlim.rlim_max = CORE_FILE_LIMIT;
+
+		ret = setrlimit(RLIMIT_CORE, &rlim);
+		FAIL_IF(ret);
+	}
+
+	ret = getrlimit(RLIMIT_FSIZE, &rlim);
+	FAIL_IF(ret);
+
+	if (rlim.rlim_cur != RLIM_INFINITY && rlim.rlim_cur < CORE_FILE_LIMIT) {
+		rlim.rlim_cur = CORE_FILE_LIMIT;
+
+		if (rlim.rlim_max != RLIM_INFINITY &&
+		    rlim.rlim_max < CORE_FILE_LIMIT)
+			rlim.rlim_max = CORE_FILE_LIMIT;
+
+		ret = setrlimit(RLIMIT_FSIZE, &rlim);
+		FAIL_IF(ret);
+	}
+
+	return TEST_PASS;
+}
+
+static int child(struct shared_info *info)
+{
+	bool disable_execute = true;
+	int pkey1, pkey2, pkey3;
+	int *ptr, ret;
+
+	/* Wait until parent fills out the initial register values. */
+	ret = wait_parent(&info->child_sync);
+	if (ret)
+		return ret;
+
+	ret = increase_core_file_limit();
+	FAIL_IF(ret);
+
+	/* Get some pkeys so that we can change their bits in the AMR. */
+	pkey1 = sys_pkey_alloc(0, PKEY_DISABLE_EXECUTE);
+	if (pkey1 < 0) {
+		pkey1 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+		FAIL_IF(pkey1 < 0);
+
+		disable_execute = false;
+	}
+
+	pkey2 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	FAIL_IF(pkey2 < 0);
+
+	pkey3 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	FAIL_IF(pkey3 < 0);
+
+	info->amr |= 3ul << pkeyshift(pkey1) | 2ul << pkeyshift(pkey2);
+
+	if (disable_execute)
+		info->iamr |= 1ul << pkeyshift(pkey1);
+	else
+		info->iamr &= ~(1ul << pkeyshift(pkey1));
+
+	info->iamr &= ~(1ul << pkeyshift(pkey2) | 1ul << pkeyshift(pkey3));
+
+	info->uamor |= 3ul << pkeyshift(pkey1) | 3ul << pkeyshift(pkey2);
+
+	printf("%-30s AMR: %016lx pkey1: %d pkey2: %d pkey3: %d\n",
+	       user_write, info->amr, pkey1, pkey2, pkey3);
+
+	set_amr(info->amr);
+
+	/*
+	 * We won't use pkey3. This tests whether the kernel restores the UAMOR
+	 * permissions after a key is freed.
+	 */
+	sys_pkey_free(pkey3);
+
+	info->core_time = time(NULL);
+
+	/* Crash. */
+	ptr = 0;
+	*ptr = 1;
+
+	/* Shouldn't get here. */
+	FAIL_IF(true);
+
+	return TEST_FAIL;
+}
+
+/* Return file size if filename exists and pass sanity check, or zero if not. */
+static off_t try_core_file(const char *filename, struct shared_info *info,
+			   pid_t pid)
+{
+	struct stat buf;
+	int ret;
+
+	ret = stat(filename, &buf);
+	if (ret == -1)
+		return TEST_FAIL;
+
+	/* Make sure we're not using a stale core file. */
+	return buf.st_mtime >= info->core_time ? buf.st_size : TEST_FAIL;
+}
+
+static Elf64_Nhdr *next_note(Elf64_Nhdr *nhdr)
+{
+	return (void *) nhdr + sizeof(*nhdr) +
+		__ALIGN_KERNEL(nhdr->n_namesz, 4) +
+		__ALIGN_KERNEL(nhdr->n_descsz, 4);
+}
+
+static int check_core_file(struct shared_info *info, Elf64_Ehdr *ehdr,
+			   off_t core_size)
+{
+	unsigned long *regs;
+	Elf64_Phdr *phdr;
+	Elf64_Nhdr *nhdr;
+	size_t phdr_size;
+	void *p = ehdr, *note;
+	int ret;
+
+	ret = memcmp(ehdr->e_ident, ELFMAG, SELFMAG);
+	FAIL_IF(ret);
+
+	FAIL_IF(ehdr->e_type != ET_CORE);
+	FAIL_IF(ehdr->e_machine != EM_PPC64);
+	FAIL_IF(ehdr->e_phoff == 0 || ehdr->e_phnum == 0);
+
+	/*
+	 * e_phnum is at most 65535 so calculating the size of the
+	 * program header cannot overflow.
+	 */
+	phdr_size = sizeof(*phdr) * ehdr->e_phnum;
+
+	/* Sanity check the program header table location. */
+	FAIL_IF(ehdr->e_phoff + phdr_size < ehdr->e_phoff);
+	FAIL_IF(ehdr->e_phoff + phdr_size > core_size);
+
+	/* Find the PT_NOTE segment. */
+	for (phdr = p + ehdr->e_phoff;
+	     (void *) phdr < p + ehdr->e_phoff + phdr_size;
+	     phdr += ehdr->e_phentsize)
+		if (phdr->p_type == PT_NOTE)
+			break;
+
+	FAIL_IF((void *) phdr >= p + ehdr->e_phoff + phdr_size);
+
+	/* Find the NT_PPC_PKEY note. */
+	for (nhdr = p + phdr->p_offset;
+	     (void *) nhdr < p + phdr->p_offset + phdr->p_filesz;
+	     nhdr = next_note(nhdr))
+		if (nhdr->n_type == NT_PPC_PKEY)
+			break;
+
+	FAIL_IF((void *) nhdr >= p + phdr->p_offset + phdr->p_filesz);
+	FAIL_IF(nhdr->n_descsz == 0);
+
+	p = nhdr;
+	note = p + sizeof(*nhdr) + __ALIGN_KERNEL(nhdr->n_namesz, 4);
+
+	regs = (unsigned long *) note;
+
+	printf("%-30s AMR: %016lx IAMR: %016lx UAMOR: %016lx\n",
+	       core_read_running, regs[0], regs[1], regs[2]);
+
+	FAIL_IF(regs[0] != info->amr);
+	FAIL_IF(regs[1] != info->iamr);
+	FAIL_IF(regs[2] != info->uamor);
+
+	return TEST_PASS;
+}
+
+static int parent(struct shared_info *info, pid_t pid)
+{
+	char *filenames, *filename[3];
+	int fd, i, ret, status;
+	unsigned long regs[3];
+	off_t core_size;
+	void *core;
+
+	/*
+	 * Get the initial values for AMR, IAMR and UAMOR and communicate them
+	 * to the child.
+	 */
+	ret = ptrace_read_regs(pid, NT_PPC_PKEY, regs, 3);
+	PARENT_SKIP_IF_UNSUPPORTED(ret, &info->child_sync, "PKEYs not supported");
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	info->amr = regs[0];
+	info->iamr = regs[1];
+	info->uamor = regs[2];
+
+	/* Wake up child so that it can set itself up. */
+	ret = prod_child(&info->child_sync);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait(&status);
+	if (ret != pid) {
+		printf("Child's exit status not captured\n");
+		return TEST_FAIL;
+	} else if (!WIFSIGNALED(status) || !WCOREDUMP(status)) {
+		printf("Child didn't dump core\n");
+		return TEST_FAIL;
+	}
+
+	/* Construct array of core file names to try. */
+
+	filename[0] = filenames = malloc(PATH_MAX);
+	if (!filenames) {
+		perror("Error allocating memory");
+		return TEST_FAIL;
+	}
+
+	ret = snprintf(filename[0], PATH_MAX, "core-pkey.%d", pid);
+	if (ret < 0 || ret >= PATH_MAX) {
+		ret = TEST_FAIL;
+		goto out;
+	}
+
+	filename[1] = filename[0] + ret + 1;
+	ret = snprintf(filename[1], PATH_MAX - ret - 1, "core.%d", pid);
+	if (ret < 0 || ret >= PATH_MAX - ret - 1) {
+		ret = TEST_FAIL;
+		goto out;
+	}
+	filename[2] = "core";
+
+	for (i = 0; i < 3; i++) {
+		core_size = try_core_file(filename[i], info, pid);
+		if (core_size != TEST_FAIL)
+			break;
+	}
+
+	if (i == 3) {
+		printf("Couldn't find core file\n");
+		ret = TEST_FAIL;
+		goto out;
+	}
+
+	fd = open(filename[i], O_RDONLY);
+	if (fd == -1) {
+		perror("Error opening core file");
+		ret = TEST_FAIL;
+		goto out;
+	}
+
+	core = mmap(NULL, core_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (core == (void *) -1) {
+		perror("Error mmapping core file");
+		ret = TEST_FAIL;
+		goto out;
+	}
+
+	ret = check_core_file(info, core, core_size);
+
+	munmap(core, core_size);
+	close(fd);
+	unlink(filename[i]);
+
+ out:
+	free(filenames);
+
+	return ret;
+}
+
+static int write_core_pattern(const char *core_pattern)
+{
+	int err;
+
+	err = write_file(core_pattern_file, core_pattern, strlen(core_pattern));
+	if (err) {
+		SKIP_IF_MSG(err == -EPERM, "Try with root privileges");
+		perror("Error writing to core_pattern file");
+		return TEST_FAIL;
+	}
+
+	return TEST_PASS;
+}
+
+static int setup_core_pattern(char **core_pattern_, bool *changed_)
+{
+	char *core_pattern;
+	size_t len;
+	int ret;
+
+	core_pattern = malloc(PATH_MAX);
+	if (!core_pattern) {
+		perror("Error allocating memory");
+		return TEST_FAIL;
+	}
+
+	ret = read_file(core_pattern_file, core_pattern, PATH_MAX - 1, &len);
+	if (ret) {
+		perror("Error reading core_pattern file");
+		ret = TEST_FAIL;
+		goto out;
+	}
+
+	core_pattern[len] = '\0';
+
+	/* Check whether we can predict the name of the core file. */
+	if (!strcmp(core_pattern, "core") || !strcmp(core_pattern, "core.%p"))
+		*changed_ = false;
+	else {
+		ret = write_core_pattern("core-pkey.%p");
+		if (ret)
+			goto out;
+
+		*changed_ = true;
+	}
+
+	*core_pattern_ = core_pattern;
+	ret = TEST_PASS;
+
+ out:
+	if (ret)
+		free(core_pattern);
+
+	return ret;
+}
+
+static int core_pkey(void)
+{
+	char *core_pattern;
+	bool changed_core_pattern;
+	struct shared_info *info;
+	int shm_id;
+	int ret;
+	pid_t pid;
+
+	ret = setup_core_pattern(&core_pattern, &changed_core_pattern);
+	if (ret)
+		return ret;
+
+	shm_id = shmget(IPC_PRIVATE, sizeof(*info), 0777 | IPC_CREAT);
+	info = shmat(shm_id, NULL, 0);
+
+	ret = init_child_sync(&info->child_sync);
+	if (ret)
+		return ret;
+
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		ret = TEST_FAIL;
+	} else if (pid == 0)
+		ret = child(info);
+	else
+		ret = parent(info, pid);
+
+	shmdt(info);
+
+	if (pid) {
+		destroy_child_sync(&info->child_sync);
+		shmctl(shm_id, IPC_RMID, NULL);
+
+		if (changed_core_pattern)
+			write_core_pattern(core_pattern);
+	}
+
+	free(core_pattern);
+
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(core_pkey, "core_pkey");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/perf-hwbreak.c b/tools/testing/selftests/powerpc/ptrace/perf-hwbreak.c
new file mode 100644
index 000000000000..e374c6b7ace6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/perf-hwbreak.c
@@ -0,0 +1,895 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * perf events self profiling example test case for hw breakpoints.
+ *
+ * This tests perf PERF_TYPE_BREAKPOINT parameters
+ * 1) tests all variants of the break on read/write flags
+ * 2) tests exclude_user == 0 and 1
+ * 3) test array matches (if DAWR is supported))
+ * 4) test different numbers of breakpoints matches
+ *
+ * Configure this breakpoint, then read and write the data a number of
+ * times. Then check the output count from perf is as expected.
+ *
+ * Based on:
+ *   http://ozlabs.org/~anton/junkcode/perf_events_example1.c
+ *
+ * Copyright (C) 2018 Michael Neuling, IBM Corporation.
+ */
+
+#define _GNU_SOURCE
+
+#include <unistd.h>
+#include <assert.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/wait.h>
+#include <sys/ptrace.h>
+#include <sys/resource.h>
+#include <sys/sysinfo.h>
+#include <asm/ptrace.h>
+#include <elf.h>
+#include <pthread.h>
+#include <sys/syscall.h>
+#include <linux/perf_event.h>
+#include <linux/hw_breakpoint.h>
+#include "utils.h"
+
+#ifndef PPC_DEBUG_FEATURE_DATA_BP_ARCH_31
+#define PPC_DEBUG_FEATURE_DATA_BP_ARCH_31	0x20
+#endif
+
+#define MAX_LOOPS 10000
+
+#define DAWR_LENGTH_MAX ((0x3f + 1) * 8)
+
+int nprocs;
+
+static volatile int a = 10;
+static volatile int b = 10;
+static volatile char c[512 + 8] __attribute__((aligned(512)));
+
+static void perf_event_attr_set(struct perf_event_attr *attr,
+				__u32 type, __u64 addr, __u64 len,
+				bool exclude_user)
+{
+	memset(attr, 0, sizeof(struct perf_event_attr));
+	attr->type           = PERF_TYPE_BREAKPOINT;
+	attr->size           = sizeof(struct perf_event_attr);
+	attr->bp_type        = type;
+	attr->bp_addr        = addr;
+	attr->bp_len         = len;
+	attr->exclude_kernel = 1;
+	attr->exclude_hv     = 1;
+	attr->exclude_guest  = 1;
+	attr->exclude_user   = exclude_user;
+	attr->disabled       = 1;
+}
+
+static int
+perf_process_event_open_exclude_user(__u32 type, __u64 addr, __u64 len, bool exclude_user)
+{
+	struct perf_event_attr attr;
+
+	perf_event_attr_set(&attr, type, addr, len, exclude_user);
+	return syscall(__NR_perf_event_open, &attr, getpid(), -1, -1, 0);
+}
+
+static int perf_process_event_open(__u32 type, __u64 addr, __u64 len)
+{
+	struct perf_event_attr attr;
+
+	perf_event_attr_set(&attr, type, addr, len, 0);
+	return syscall(__NR_perf_event_open, &attr, getpid(), -1, -1, 0);
+}
+
+static int perf_cpu_event_open(long cpu, __u32 type, __u64 addr, __u64 len)
+{
+	struct perf_event_attr attr;
+
+	perf_event_attr_set(&attr, type, addr, len, 0);
+	return syscall(__NR_perf_event_open, &attr, -1, cpu, -1, 0);
+}
+
+static void close_fds(int *fd, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)
+		close(fd[i]);
+}
+
+static unsigned long read_fds(int *fd, int n)
+{
+	int i;
+	unsigned long c = 0;
+	unsigned long count = 0;
+	size_t res;
+
+	for (i = 0; i < n; i++) {
+		res = read(fd[i], &c, sizeof(c));
+		assert(res == sizeof(unsigned long long));
+		count += c;
+	}
+	return count;
+}
+
+static void reset_fds(int *fd, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)
+		ioctl(fd[i], PERF_EVENT_IOC_RESET);
+}
+
+static void enable_fds(int *fd, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)
+		ioctl(fd[i], PERF_EVENT_IOC_ENABLE);
+}
+
+static void disable_fds(int *fd, int n)
+{
+	int i;
+
+	for (i = 0; i < n; i++)
+		ioctl(fd[i], PERF_EVENT_IOC_DISABLE);
+}
+
+static int perf_systemwide_event_open(int *fd, __u32 type, __u64 addr, __u64 len)
+{
+	int i, ncpus, cpu, ret = 0;
+	struct rlimit rlim;
+	cpu_set_t *mask;
+	size_t size;
+
+	if (getrlimit(RLIMIT_NOFILE, &rlim)) {
+		perror("getrlimit");
+		return -1;
+	}
+	rlim.rlim_cur = 65536;
+	if (setrlimit(RLIMIT_NOFILE, &rlim)) {
+		perror("setrlimit");
+		return -1;
+	}
+
+	ncpus = get_nprocs_conf();
+	size = CPU_ALLOC_SIZE(ncpus);
+	mask = CPU_ALLOC(ncpus);
+	if (!mask) {
+		perror("malloc");
+		return -1;
+	}
+
+	CPU_ZERO_S(size, mask);
+
+	if (sched_getaffinity(0, size, mask)) {
+		perror("sched_getaffinity");
+		ret = -1;
+		goto done;
+	}
+
+	for (i = 0, cpu = 0; i < nprocs && cpu < ncpus; cpu++) {
+		if (!CPU_ISSET_S(cpu, size, mask))
+			continue;
+		fd[i] = perf_cpu_event_open(cpu, type, addr, len);
+		if (fd[i] < 0) {
+			perror("perf_systemwide_event_open");
+			close_fds(fd, i);
+			ret = fd[i];
+			goto done;
+		}
+		i++;
+	}
+
+	if (i < nprocs) {
+		printf("Error: Number of online cpus reduced since start of test: %d < %d\n", i, nprocs);
+		close_fds(fd, i);
+		ret = -1;
+	}
+
+done:
+	CPU_FREE(mask);
+	return ret;
+}
+
+static inline bool breakpoint_test(int len)
+{
+	int fd;
+
+	/* bp_addr can point anywhere but needs to be aligned */
+	fd = perf_process_event_open(HW_BREAKPOINT_R, (__u64)(&fd) & 0xfffffffffffff800, len);
+	if (fd < 0)
+		return false;
+	close(fd);
+	return true;
+}
+
+static inline bool perf_breakpoint_supported(void)
+{
+	return breakpoint_test(4);
+}
+
+static inline bool dawr_supported(void)
+{
+	return breakpoint_test(DAWR_LENGTH_MAX);
+}
+
+static int runtestsingle(int readwriteflag, int exclude_user, int arraytest)
+{
+	int i,j;
+	size_t res;
+	unsigned long long breaks, needed;
+	int readint;
+	int readintarraybig[2*DAWR_LENGTH_MAX/sizeof(int)];
+	int *readintalign;
+	volatile int *ptr;
+	int break_fd;
+	int loop_num = MAX_LOOPS - (rand() % 100); /* provide some variability */
+	volatile int *k;
+	__u64 len;
+
+	/* align to 0x400 boundary as required by DAWR */
+	readintalign = (int *)(((unsigned long)readintarraybig + 0x7ff) &
+			       0xfffffffffffff800);
+
+	ptr = &readint;
+	if (arraytest)
+		ptr = &readintalign[0];
+
+	len = arraytest ? DAWR_LENGTH_MAX : sizeof(int);
+	break_fd = perf_process_event_open_exclude_user(readwriteflag, (__u64)ptr,
+							len, exclude_user);
+	if (break_fd < 0) {
+		perror("perf_process_event_open_exclude_user");
+		exit(1);
+	}
+
+	/* start counters */
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+
+	/* Test a bunch of reads and writes */
+	k = &readint;
+	for (i = 0; i < loop_num; i++) {
+		if (arraytest)
+			k = &(readintalign[i % (DAWR_LENGTH_MAX/sizeof(int))]);
+
+		j = *k;
+		*k = j;
+	}
+
+	/* stop counters */
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+
+	/* read and check counters */
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	/* we read and write each loop, so subtract the ones we are counting */
+	needed = 0;
+	if (readwriteflag & HW_BREAKPOINT_R)
+		needed += loop_num;
+	if (readwriteflag & HW_BREAKPOINT_W)
+		needed += loop_num;
+	needed = needed * (1 - exclude_user);
+	printf("TESTED: addr:0x%lx brks:% 8lld loops:% 8i rw:%i !user:%i array:%i\n",
+	       (unsigned long int)ptr, breaks, loop_num, readwriteflag, exclude_user, arraytest);
+	if (breaks != needed) {
+		printf("FAILED: 0x%lx brks:%lld needed:%lli %i %i %i\n\n",
+		       (unsigned long int)ptr, breaks, needed, loop_num, readwriteflag, exclude_user);
+		return 1;
+	}
+	close(break_fd);
+
+	return 0;
+}
+
+static int runtest_dar_outside(void)
+{
+	void *target;
+	volatile __u16 temp16;
+	volatile __u64 temp64;
+	int break_fd;
+	unsigned long long breaks;
+	int fail = 0;
+	size_t res;
+
+	target = malloc(8);
+	if (!target) {
+		perror("malloc failed");
+		exit(EXIT_FAILURE);
+	}
+
+	/* watch middle half of target array */
+	break_fd = perf_process_event_open(HW_BREAKPOINT_RW, (__u64)(target + 2), 4);
+	if (break_fd < 0) {
+		free(target);
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Shouldn't hit. */
+	ioctl(break_fd, PERF_EVENT_IOC_RESET);
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+	temp16 = *((__u16 *)target);
+	*((__u16 *)target) = temp16;
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	if (breaks == 0) {
+		printf("TESTED: No overlap\n");
+	} else {
+		printf("FAILED: No overlap: %lld != 0\n", breaks);
+		fail = 1;
+	}
+
+	/* Hit */
+	ioctl(break_fd, PERF_EVENT_IOC_RESET);
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+	temp16 = *((__u16 *)(target + 1));
+	*((__u16 *)(target + 1)) = temp16;
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	if (breaks == 2) {
+		printf("TESTED: Partial overlap\n");
+	} else {
+		printf("FAILED: Partial overlap: %lld != 2\n", breaks);
+		fail = 1;
+	}
+
+	/* Hit */
+	ioctl(break_fd, PERF_EVENT_IOC_RESET);
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+	temp16 = *((__u16 *)(target + 5));
+	*((__u16 *)(target + 5)) = temp16;
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	if (breaks == 2) {
+		printf("TESTED: Partial overlap\n");
+	} else {
+		printf("FAILED: Partial overlap: %lld != 2\n", breaks);
+		fail = 1;
+	}
+
+	/* Shouldn't Hit */
+	ioctl(break_fd, PERF_EVENT_IOC_RESET);
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+	temp16 = *((__u16 *)(target + 6));
+	*((__u16 *)(target + 6)) = temp16;
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	if (breaks == 0) {
+		printf("TESTED: No overlap\n");
+	} else {
+		printf("FAILED: No overlap: %lld != 0\n", breaks);
+		fail = 1;
+	}
+
+	/* Hit */
+	ioctl(break_fd, PERF_EVENT_IOC_RESET);
+	ioctl(break_fd, PERF_EVENT_IOC_ENABLE);
+	temp64 = *((__u64 *)target);
+	*((__u64 *)target) = temp64;
+	ioctl(break_fd, PERF_EVENT_IOC_DISABLE);
+	res = read(break_fd, &breaks, sizeof(unsigned long long));
+	assert(res == sizeof(unsigned long long));
+	if (breaks == 2) {
+		printf("TESTED: Full overlap\n");
+	} else {
+		printf("FAILED: Full overlap: %lld != 2\n", breaks);
+		fail = 1;
+	}
+
+	free(target);
+	close(break_fd);
+	return fail;
+}
+
+static void multi_dawr_workload(void)
+{
+	a += 10;
+	b += 10;
+	c[512 + 1] += 'a';
+}
+
+static int test_process_multi_diff_addr(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int fd1, fd2;
+	char *desc = "Process specific, Two events, diff addr";
+	size_t res;
+
+	fd1 = perf_process_event_open(HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (fd1 < 0) {
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	fd2 = perf_process_event_open(HW_BREAKPOINT_RW, (__u64)&b, (__u64)sizeof(b));
+	if (fd2 < 0) {
+		close(fd1);
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	ioctl(fd1, PERF_EVENT_IOC_RESET);
+	ioctl(fd2, PERF_EVENT_IOC_RESET);
+	ioctl(fd1, PERF_EVENT_IOC_ENABLE);
+	ioctl(fd2, PERF_EVENT_IOC_ENABLE);
+	multi_dawr_workload();
+	ioctl(fd1, PERF_EVENT_IOC_DISABLE);
+	ioctl(fd2, PERF_EVENT_IOC_DISABLE);
+
+	res = read(fd1, &breaks1, sizeof(breaks1));
+	assert(res == sizeof(unsigned long long));
+	res = read(fd2, &breaks2, sizeof(breaks2));
+	assert(res == sizeof(unsigned long long));
+
+	close(fd1);
+	close(fd2);
+
+	if (breaks1 != 2 || breaks2 != 2) {
+		printf("FAILED: %s: %lld != 2 || %lld != 2\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_process_multi_same_addr(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int fd1, fd2;
+	char *desc = "Process specific, Two events, same addr";
+	size_t res;
+
+	fd1 = perf_process_event_open(HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (fd1 < 0) {
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	fd2 = perf_process_event_open(HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (fd2 < 0) {
+		close(fd1);
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	ioctl(fd1, PERF_EVENT_IOC_RESET);
+	ioctl(fd2, PERF_EVENT_IOC_RESET);
+	ioctl(fd1, PERF_EVENT_IOC_ENABLE);
+	ioctl(fd2, PERF_EVENT_IOC_ENABLE);
+	multi_dawr_workload();
+	ioctl(fd1, PERF_EVENT_IOC_DISABLE);
+	ioctl(fd2, PERF_EVENT_IOC_DISABLE);
+
+	res = read(fd1, &breaks1, sizeof(breaks1));
+	assert(res == sizeof(unsigned long long));
+	res = read(fd2, &breaks2, sizeof(breaks2));
+	assert(res == sizeof(unsigned long long));
+
+	close(fd1);
+	close(fd2);
+
+	if (breaks1 != 2 || breaks2 != 2) {
+		printf("FAILED: %s: %lld != 2 || %lld != 2\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_process_multi_diff_addr_ro_wo(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int fd1, fd2;
+	char *desc = "Process specific, Two events, diff addr, one is RO, other is WO";
+	size_t res;
+
+	fd1 = perf_process_event_open(HW_BREAKPOINT_W, (__u64)&a, (__u64)sizeof(a));
+	if (fd1 < 0) {
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	fd2 = perf_process_event_open(HW_BREAKPOINT_R, (__u64)&b, (__u64)sizeof(b));
+	if (fd2 < 0) {
+		close(fd1);
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	ioctl(fd1, PERF_EVENT_IOC_RESET);
+	ioctl(fd2, PERF_EVENT_IOC_RESET);
+	ioctl(fd1, PERF_EVENT_IOC_ENABLE);
+	ioctl(fd2, PERF_EVENT_IOC_ENABLE);
+	multi_dawr_workload();
+	ioctl(fd1, PERF_EVENT_IOC_DISABLE);
+	ioctl(fd2, PERF_EVENT_IOC_DISABLE);
+
+	res = read(fd1, &breaks1, sizeof(breaks1));
+	assert(res == sizeof(unsigned long long));
+	res = read(fd2, &breaks2, sizeof(breaks2));
+	assert(res == sizeof(unsigned long long));
+
+	close(fd1);
+	close(fd2);
+
+	if (breaks1 != 1 || breaks2 != 1) {
+		printf("FAILED: %s: %lld != 1 || %lld != 1\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_process_multi_same_addr_ro_wo(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int fd1, fd2;
+	char *desc = "Process specific, Two events, same addr, one is RO, other is WO";
+	size_t res;
+
+	fd1 = perf_process_event_open(HW_BREAKPOINT_R, (__u64)&a, (__u64)sizeof(a));
+	if (fd1 < 0) {
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	fd2 = perf_process_event_open(HW_BREAKPOINT_W, (__u64)&a, (__u64)sizeof(a));
+	if (fd2 < 0) {
+		close(fd1);
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	ioctl(fd1, PERF_EVENT_IOC_RESET);
+	ioctl(fd2, PERF_EVENT_IOC_RESET);
+	ioctl(fd1, PERF_EVENT_IOC_ENABLE);
+	ioctl(fd2, PERF_EVENT_IOC_ENABLE);
+	multi_dawr_workload();
+	ioctl(fd1, PERF_EVENT_IOC_DISABLE);
+	ioctl(fd2, PERF_EVENT_IOC_DISABLE);
+
+	res = read(fd1, &breaks1, sizeof(breaks1));
+	assert(res == sizeof(unsigned long long));
+	res = read(fd2, &breaks2, sizeof(breaks2));
+	assert(res == sizeof(unsigned long long));
+
+	close(fd1);
+	close(fd2);
+
+	if (breaks1 != 1 || breaks2 != 1) {
+		printf("FAILED: %s: %lld != 1 || %lld != 1\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_syswide_multi_diff_addr(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int *fd1 = malloc(nprocs * sizeof(int));
+	int *fd2 = malloc(nprocs * sizeof(int));
+	char *desc = "Systemwide, Two events, diff addr";
+	int ret;
+
+	ret = perf_systemwide_event_open(fd1, HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (ret)
+		exit(EXIT_FAILURE);
+
+	ret = perf_systemwide_event_open(fd2, HW_BREAKPOINT_RW, (__u64)&b, (__u64)sizeof(b));
+	if (ret) {
+		close_fds(fd1, nprocs);
+		exit(EXIT_FAILURE);
+	}
+
+	reset_fds(fd1, nprocs);
+	reset_fds(fd2, nprocs);
+	enable_fds(fd1, nprocs);
+	enable_fds(fd2, nprocs);
+	multi_dawr_workload();
+	disable_fds(fd1, nprocs);
+	disable_fds(fd2, nprocs);
+
+	breaks1 = read_fds(fd1, nprocs);
+	breaks2 = read_fds(fd2, nprocs);
+
+	close_fds(fd1, nprocs);
+	close_fds(fd2, nprocs);
+
+	free(fd1);
+	free(fd2);
+
+	if (breaks1 != 2 || breaks2 != 2) {
+		printf("FAILED: %s: %lld != 2 || %lld != 2\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_syswide_multi_same_addr(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int *fd1 = malloc(nprocs * sizeof(int));
+	int *fd2 = malloc(nprocs * sizeof(int));
+	char *desc = "Systemwide, Two events, same addr";
+	int ret;
+
+	ret = perf_systemwide_event_open(fd1, HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (ret)
+		exit(EXIT_FAILURE);
+
+	ret = perf_systemwide_event_open(fd2, HW_BREAKPOINT_RW, (__u64)&a, (__u64)sizeof(a));
+	if (ret) {
+		close_fds(fd1, nprocs);
+		exit(EXIT_FAILURE);
+	}
+
+	reset_fds(fd1, nprocs);
+	reset_fds(fd2, nprocs);
+	enable_fds(fd1, nprocs);
+	enable_fds(fd2, nprocs);
+	multi_dawr_workload();
+	disable_fds(fd1, nprocs);
+	disable_fds(fd2, nprocs);
+
+	breaks1 = read_fds(fd1, nprocs);
+	breaks2 = read_fds(fd2, nprocs);
+
+	close_fds(fd1, nprocs);
+	close_fds(fd2, nprocs);
+
+	free(fd1);
+	free(fd2);
+
+	if (breaks1 != 2 || breaks2 != 2) {
+		printf("FAILED: %s: %lld != 2 || %lld != 2\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_syswide_multi_diff_addr_ro_wo(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int *fd1 = malloc(nprocs * sizeof(int));
+	int *fd2 = malloc(nprocs * sizeof(int));
+	char *desc = "Systemwide, Two events, diff addr, one is RO, other is WO";
+	int ret;
+
+	ret = perf_systemwide_event_open(fd1, HW_BREAKPOINT_W, (__u64)&a, (__u64)sizeof(a));
+	if (ret)
+		exit(EXIT_FAILURE);
+
+	ret = perf_systemwide_event_open(fd2, HW_BREAKPOINT_R, (__u64)&b, (__u64)sizeof(b));
+	if (ret) {
+		close_fds(fd1, nprocs);
+		exit(EXIT_FAILURE);
+	}
+
+	reset_fds(fd1, nprocs);
+	reset_fds(fd2, nprocs);
+	enable_fds(fd1, nprocs);
+	enable_fds(fd2, nprocs);
+	multi_dawr_workload();
+	disable_fds(fd1, nprocs);
+	disable_fds(fd2, nprocs);
+
+	breaks1 = read_fds(fd1, nprocs);
+	breaks2 = read_fds(fd2, nprocs);
+
+	close_fds(fd1, nprocs);
+	close_fds(fd2, nprocs);
+
+	free(fd1);
+	free(fd2);
+
+	if (breaks1 != 1 || breaks2 != 1) {
+		printf("FAILED: %s: %lld != 1 || %lld != 1\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int test_syswide_multi_same_addr_ro_wo(void)
+{
+	unsigned long long breaks1 = 0, breaks2 = 0;
+	int *fd1 = malloc(nprocs * sizeof(int));
+	int *fd2 = malloc(nprocs * sizeof(int));
+	char *desc = "Systemwide, Two events, same addr, one is RO, other is WO";
+	int ret;
+
+	ret = perf_systemwide_event_open(fd1, HW_BREAKPOINT_W, (__u64)&a, (__u64)sizeof(a));
+	if (ret)
+		exit(EXIT_FAILURE);
+
+	ret = perf_systemwide_event_open(fd2, HW_BREAKPOINT_R, (__u64)&a, (__u64)sizeof(a));
+	if (ret) {
+		close_fds(fd1, nprocs);
+		exit(EXIT_FAILURE);
+	}
+
+	reset_fds(fd1, nprocs);
+	reset_fds(fd2, nprocs);
+	enable_fds(fd1, nprocs);
+	enable_fds(fd2, nprocs);
+	multi_dawr_workload();
+	disable_fds(fd1, nprocs);
+	disable_fds(fd2, nprocs);
+
+	breaks1 = read_fds(fd1, nprocs);
+	breaks2 = read_fds(fd2, nprocs);
+
+	close_fds(fd1, nprocs);
+	close_fds(fd2, nprocs);
+
+	free(fd1);
+	free(fd2);
+
+	if (breaks1 != 1 || breaks2 != 1) {
+		printf("FAILED: %s: %lld != 1 || %lld != 1\n", desc, breaks1, breaks2);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+static int runtest_multi_dawr(void)
+{
+	int ret = 0;
+
+	ret |= test_process_multi_diff_addr();
+	ret |= test_process_multi_same_addr();
+	ret |= test_process_multi_diff_addr_ro_wo();
+	ret |= test_process_multi_same_addr_ro_wo();
+	ret |= test_syswide_multi_diff_addr();
+	ret |= test_syswide_multi_same_addr();
+	ret |= test_syswide_multi_diff_addr_ro_wo();
+	ret |= test_syswide_multi_same_addr_ro_wo();
+
+	return ret;
+}
+
+static int runtest_unaligned_512bytes(void)
+{
+	unsigned long long breaks = 0;
+	int fd;
+	char *desc = "Process specific, 512 bytes, unaligned";
+	__u64 addr = (__u64)&c + 8;
+	size_t res;
+
+	fd = perf_process_event_open(HW_BREAKPOINT_RW, addr, 512);
+	if (fd < 0) {
+		perror("perf_process_event_open");
+		exit(EXIT_FAILURE);
+	}
+
+	ioctl(fd, PERF_EVENT_IOC_RESET);
+	ioctl(fd, PERF_EVENT_IOC_ENABLE);
+	multi_dawr_workload();
+	ioctl(fd, PERF_EVENT_IOC_DISABLE);
+
+	res = read(fd, &breaks, sizeof(breaks));
+	assert(res == sizeof(unsigned long long));
+
+	close(fd);
+
+	if (breaks != 2) {
+		printf("FAILED: %s: %lld != 2\n", desc, breaks);
+		return 1;
+	}
+
+	printf("TESTED: %s\n", desc);
+	return 0;
+}
+
+/* There is no perf api to find number of available watchpoints. Use ptrace. */
+static int get_nr_wps(bool *arch_31)
+{
+	struct ppc_debug_info dbginfo;
+	int child_pid;
+
+	child_pid = fork();
+	if (!child_pid) {
+		int ret = ptrace(PTRACE_TRACEME, 0, NULL, 0);
+		if (ret) {
+			perror("PTRACE_TRACEME failed\n");
+			exit(EXIT_FAILURE);
+		}
+		kill(getpid(), SIGUSR1);
+
+		sleep(1);
+		exit(EXIT_SUCCESS);
+	}
+
+	wait(NULL);
+	if (ptrace(PPC_PTRACE_GETHWDBGINFO, child_pid, NULL, &dbginfo)) {
+		perror("Can't get breakpoint info");
+		exit(EXIT_FAILURE);
+	}
+
+	*arch_31 = !!(dbginfo.features & PPC_DEBUG_FEATURE_DATA_BP_ARCH_31);
+	return dbginfo.num_data_bps;
+}
+
+static int runtest(void)
+{
+	int rwflag;
+	int exclude_user;
+	int ret;
+	bool dawr = dawr_supported();
+	bool arch_31 = false;
+	int nr_wps = get_nr_wps(&arch_31);
+
+	/*
+	 * perf defines rwflag as two bits read and write and at least
+	 * one must be set.  So range 1-3.
+	 */
+	for (rwflag = 1 ; rwflag < 4; rwflag++) {
+		for (exclude_user = 0 ; exclude_user < 2; exclude_user++) {
+			ret = runtestsingle(rwflag, exclude_user, 0);
+			if (ret)
+				return ret;
+
+			/* if we have the dawr, we can do an array test */
+			if (!dawr)
+				continue;
+			ret = runtestsingle(rwflag, exclude_user, 1);
+			if (ret)
+				return ret;
+		}
+	}
+
+	ret = runtest_dar_outside();
+	if (ret)
+		return ret;
+
+	if (dawr && nr_wps > 1) {
+		nprocs = get_nprocs();
+		ret = runtest_multi_dawr();
+		if (ret)
+			return ret;
+	}
+
+	if (dawr && arch_31)
+		ret = runtest_unaligned_512bytes();
+
+	return ret;
+}
+
+
+static int perf_hwbreak(void)
+{
+	srand ( time(NULL) );
+
+	SKIP_IF_MSG(!perf_breakpoint_supported(), "Perf breakpoints not supported");
+
+	return runtest();
+}
+
+int main(int argc, char *argv[], char **envp)
+{
+	return test_harness(perf_hwbreak, "perf_hwbreak");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.S b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.S
new file mode 100644
index 000000000000..070e8443e3cc
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.S
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * test helper assembly functions
+ *
+ * Copyright (C) 2016 Simon Guo, IBM Corporation.
+ * Copyright 2022 Michael Ellerman, IBM Corporation.
+ */
+#include "basic_asm.h"
+
+#define GPR_SIZE	__SIZEOF_LONG__
+#define FIRST_GPR	14
+#define NUM_GPRS	(32 - FIRST_GPR)
+#define STACK_SIZE	(NUM_GPRS * GPR_SIZE)
+
+// gpr_child_loop(int *read_flag, int *write_flag,
+//		  unsigned long *gpr_buf, double *fpr_buf);
+FUNC_START(gpr_child_loop)
+	// r3 = read_flag
+	// r4 = write_flag
+	// r5 = gpr_buf
+	// r6 = fpr_buf
+	PUSH_BASIC_STACK(STACK_SIZE)
+
+	// Save non-volatile GPRs
+	OP_REGS PPC_STL, GPR_SIZE, FIRST_GPR, 31, %r1, STACK_FRAME_LOCAL(0, 0), FIRST_GPR
+
+	// Load GPRs with expected values
+	OP_REGS PPC_LL, GPR_SIZE, FIRST_GPR, 31, r5, 0, FIRST_GPR
+
+	// Load FPRs with expected values
+	OP_REGS lfd, 8, 0, 31, r6
+
+	// Signal to parent that we're ready
+	li	r0, 1
+	stw	r0, 0(r4)
+
+	// Wait for parent to finish
+1:	lwz	r0, 0(r3)
+	cmpwi	r0, 0
+	beq	1b	// Loop while flag is zero
+
+	// Save GPRs back to caller buffer
+	OP_REGS PPC_STL, GPR_SIZE, FIRST_GPR, 31, r5, 0, FIRST_GPR
+
+	// Save FPRs
+	OP_REGS stfd, 8, 0, 31, r6
+
+	// Reload non-volatile GPRs
+	OP_REGS PPC_LL, GPR_SIZE, FIRST_GPR, 31, %r1, STACK_FRAME_LOCAL(0, 0), FIRST_GPR
+
+	POP_BASIC_STACK(STACK_SIZE)
+	blr
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c
new file mode 100644
index 000000000000..9ed87d297799
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for GPR/FPR registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "ptrace-gpr.h"
+#include "reg.h"
+#include <time.h>
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+int *cptr, *pptr;
+
+extern void gpr_child_loop(int *read_flag, int *write_flag,
+			   unsigned long *gpr_buf, double *fpr_buf);
+
+unsigned long child_gpr_val, parent_gpr_val;
+double child_fpr_val, parent_fpr_val;
+
+static int child(void)
+{
+	unsigned long gpr_buf[32];
+	double fpr_buf[32];
+	int i;
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+	memset(gpr_buf, 0, sizeof(gpr_buf));
+	memset(fpr_buf, 0, sizeof(fpr_buf));
+
+	for (i = 0; i < 32; i++) {
+		gpr_buf[i] = child_gpr_val;
+		fpr_buf[i] = child_fpr_val;
+	}
+
+	gpr_child_loop(&cptr[0], &cptr[1], gpr_buf, fpr_buf);
+
+	shmdt((void *)cptr);
+
+	FAIL_IF(validate_gpr(gpr_buf, parent_gpr_val));
+	FAIL_IF(validate_fpr_double(fpr_buf, parent_fpr_val));
+
+	return 0;
+}
+
+int trace_gpr(pid_t child)
+{
+	__u64 tmp, fpr[32], *peeked_fprs;
+	unsigned long gpr[18];
+
+	FAIL_IF(start_trace(child));
+
+	// Check child GPRs match what we expect using GETREGS
+	FAIL_IF(show_gpr(child, gpr));
+	FAIL_IF(validate_gpr(gpr, child_gpr_val));
+
+	// Check child FPRs match what we expect using GETFPREGS
+	FAIL_IF(show_fpr(child, fpr));
+	memcpy(&tmp, &child_fpr_val, sizeof(tmp));
+	FAIL_IF(validate_fpr(fpr, tmp));
+
+	// Check child FPRs match what we expect using PEEKUSR
+	peeked_fprs = peek_fprs(child);
+	FAIL_IF(!peeked_fprs);
+	FAIL_IF(validate_fpr(peeked_fprs, tmp));
+	free(peeked_fprs);
+
+	// Write child GPRs using SETREGS
+	FAIL_IF(write_gpr(child, parent_gpr_val));
+
+	// Write child FPRs using SETFPREGS
+	memcpy(&tmp, &parent_fpr_val, sizeof(tmp));
+	FAIL_IF(write_fpr(child, tmp));
+
+	// Check child FPRs match what we just set, using PEEKUSR
+	peeked_fprs = peek_fprs(child);
+	FAIL_IF(!peeked_fprs);
+	FAIL_IF(validate_fpr(peeked_fprs, tmp));
+
+	// Write child FPRs using POKEUSR
+	FAIL_IF(poke_fprs(child, (unsigned long *)peeked_fprs));
+
+	// Child will check its FPRs match before exiting
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+#ifndef __LONG_WIDTH__
+#define __LONG_WIDTH__ (sizeof(long) * 8)
+#endif
+
+static uint64_t rand_reg(void)
+{
+	uint64_t result;
+	long r;
+
+	r = random();
+
+	// Small values are typical
+	result = r & 0xffff;
+	if (r & 0x10000)
+		return result;
+
+	// Pointers tend to have high bits set
+	result |= random() << (__LONG_WIDTH__ - 31);
+	if (r & 0x100000)
+		return result;
+
+	// And sometimes we want a full 64-bit value
+	result ^= random() << 16;
+
+	return result;
+}
+
+int ptrace_gpr(void)
+{
+	unsigned long seed;
+	int ret, status;
+	pid_t pid;
+
+	seed = getpid() ^ time(NULL);
+	printf("srand(%lu)\n", seed);
+	srand(seed);
+
+	child_gpr_val = rand_reg();
+	child_fpr_val = rand_reg();
+	parent_gpr_val = rand_reg();
+	parent_fpr_val = rand_reg();
+
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+	if (pid == 0)
+		exit(child());
+
+	if (pid) {
+		pptr = (int *)shmat(shm_id, NULL, 0);
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+
+		ret = trace_gpr(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			shmdt((void *)pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		pptr[0] = 1;
+		shmdt((void *)pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_gpr, "ptrace_gpr");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h
new file mode 100644
index 000000000000..a5470b88bd08
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-gpr.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#define GPR_1	1
+#define GPR_2	2
+#define GPR_3	3
+#define GPR_4	4
+
+#define FPR_1	0.001
+#define FPR_2	0.002
+#define FPR_3	0.003
+#define FPR_4	0.004
+
+#define FPR_1_REP 0x3f50624dd2f1a9fcull
+#define FPR_2_REP 0x3f60624dd2f1a9fcull
+#define FPR_3_REP 0x3f689374bc6a7efaull
+#define FPR_4_REP 0x3f70624dd2f1a9fcull
+
+/* Buffer must have 18 elements */
+int validate_gpr(unsigned long *gpr, unsigned long val)
+{
+	int i, found = 1;
+
+	for (i = 0; i < 18; i++) {
+		if (gpr[i] != val) {
+			printf("GPR[%d]: %lx Expected: %lx\n",
+				i+14, gpr[i], val);
+			found = 0;
+		}
+	}
+
+	if (!found)
+		return TEST_FAIL;
+	return TEST_PASS;
+}
+
+/* Buffer must have 32 elements */
+int validate_fpr(__u64 *fpr, __u64 val)
+{
+	int i, found = 1;
+
+	for (i = 0; i < 32; i++) {
+		if (fpr[i] != val) {
+			printf("FPR[%d]: %llx Expected: %llx\n", i, fpr[i], val);
+			found = 0;
+		}
+	}
+
+	if (!found)
+		return TEST_FAIL;
+	return TEST_PASS;
+}
+
+/* Buffer must have 32 elements */
+int validate_fpr_double(double *fpr, double val)
+{
+	int i, found = 1;
+
+	for (i = 0; i < 32; i++) {
+		if (fpr[i] != val) {
+			printf("FPR[%d]: %f Expected: %f\n", i, fpr[i], val);
+			found = 0;
+		}
+	}
+
+	if (!found)
+		return TEST_FAIL;
+	return TEST_PASS;
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-hwbreak.c b/tools/testing/selftests/powerpc/ptrace/ptrace-hwbreak.c
new file mode 100644
index 000000000000..75d30d61ab0e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-hwbreak.c
@@ -0,0 +1,627 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Ptrace test for hw breakpoints
+ *
+ * Based on tools/testing/selftests/breakpoints/breakpoint_test.c
+ *
+ * This test forks and the parent then traces the child doing various
+ * types of ptrace enabled breakpoints
+ *
+ * Copyright (C) 2018 Michael Neuling, IBM Corporation.
+ */
+
+#include <sys/ptrace.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <sys/user.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <linux/limits.h>
+#include "ptrace.h"
+#include "reg.h"
+
+#define SPRN_PVR	0x11F
+#define PVR_8xx		0x00500000
+
+bool is_8xx;
+
+/*
+ * Use volatile on all global var so that compiler doesn't
+ * optimise their load/stores. Otherwise selftest can fail.
+ */
+static volatile __u64 glvar;
+
+#define DAWR_MAX_LEN 512
+static volatile __u8 big_var[DAWR_MAX_LEN] __attribute__((aligned(512)));
+
+#define A_LEN 6
+#define B_LEN 6
+struct gstruct {
+	__u8 a[A_LEN]; /* double word aligned */
+	__u8 b[B_LEN]; /* double word unaligned */
+};
+static volatile struct gstruct gstruct __attribute__((aligned(512)));
+
+static volatile char cwd[PATH_MAX] __attribute__((aligned(8)));
+
+static void get_dbginfo(pid_t child_pid, struct ppc_debug_info *dbginfo)
+{
+	if (ptrace(PPC_PTRACE_GETHWDBGINFO, child_pid, NULL, dbginfo)) {
+		perror("Can't get breakpoint info");
+		exit(-1);
+	}
+}
+
+static bool dawr_present(struct ppc_debug_info *dbginfo)
+{
+	return !!(dbginfo->features & PPC_DEBUG_FEATURE_DATA_BP_DAWR);
+}
+
+static void write_var(int len)
+{
+	volatile __u8 *pcvar;
+	volatile __u16 *psvar;
+	volatile __u32 *pivar;
+	volatile __u64 *plvar;
+
+	switch (len) {
+	case 1:
+		pcvar = (volatile __u8 *)&glvar;
+		*pcvar = 0xff;
+		break;
+	case 2:
+		psvar = (volatile __u16 *)&glvar;
+		*psvar = 0xffff;
+		break;
+	case 4:
+		pivar = (volatile __u32 *)&glvar;
+		*pivar = 0xffffffff;
+		break;
+	case 8:
+		plvar = (volatile __u64 *)&glvar;
+		*plvar = 0xffffffffffffffffLL;
+		break;
+	}
+}
+
+static void read_var(int len)
+{
+	__u8 cvar __attribute__((unused));
+	__u16 svar __attribute__((unused));
+	__u32 ivar __attribute__((unused));
+	__u64 lvar __attribute__((unused));
+
+	switch (len) {
+	case 1:
+		cvar = (volatile __u8)glvar;
+		break;
+	case 2:
+		svar = (volatile __u16)glvar;
+		break;
+	case 4:
+		ivar = (volatile __u32)glvar;
+		break;
+	case 8:
+		lvar = (volatile __u64)glvar;
+		break;
+	}
+}
+
+static void test_workload(void)
+{
+	__u8 cvar __attribute__((unused));
+	__u32 ivar __attribute__((unused));
+	int len = 0;
+
+	if (ptrace(PTRACE_TRACEME, 0, NULL, 0)) {
+		perror("Child can't be traced?");
+		exit(-1);
+	}
+
+	/* Wake up father so that it sets up the first test */
+	kill(getpid(), SIGUSR1);
+
+	/* PTRACE_SET_DEBUGREG, WO test */
+	for (len = 1; len <= sizeof(glvar); len <<= 1)
+		write_var(len);
+
+	/* PTRACE_SET_DEBUGREG, RO test */
+	for (len = 1; len <= sizeof(glvar); len <<= 1)
+		read_var(len);
+
+	/* PTRACE_SET_DEBUGREG, RW test */
+	for (len = 1; len <= sizeof(glvar); len <<= 1) {
+		if (rand() % 2)
+			read_var(len);
+		else
+			write_var(len);
+	}
+
+	/* PTRACE_SET_DEBUGREG, Kernel Access Userspace test */
+	syscall(__NR_getcwd, &cwd, PATH_MAX);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, WO test */
+	write_var(1);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RO test */
+	read_var(1);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RW test */
+	if (rand() % 2)
+		write_var(1);
+	else
+		read_var(1);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, Kernel Access Userspace test */
+	syscall(__NR_getcwd, &cwd, PATH_MAX);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, WO test */
+	gstruct.a[rand() % A_LEN] = 'a';
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RO test */
+	cvar = gstruct.a[rand() % A_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RW test */
+	if (rand() % 2)
+		gstruct.a[rand() % A_LEN] = 'a';
+	else
+		cvar = gstruct.a[rand() % A_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, WO test */
+	gstruct.b[rand() % B_LEN] = 'b';
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, RO test */
+	cvar = gstruct.b[rand() % B_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, RW test */
+	if (rand() % 2)
+		gstruct.b[rand() % B_LEN] = 'b';
+	else
+		cvar = gstruct.b[rand() % B_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, DAR OUTSIDE, RW test */
+	if (rand() % 2)
+		*((int *)(gstruct.a + 4)) = 10;
+	else
+		ivar = *((int *)(gstruct.a + 4));
+
+	/* PPC_PTRACE_SETHWDEBUG. DAWR_MAX_LEN. RW test */
+	if (rand() % 2)
+		big_var[rand() % DAWR_MAX_LEN] = 'a';
+	else
+		cvar = big_var[rand() % DAWR_MAX_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW ALIGNED, WO test */
+	gstruct.a[rand() % A_LEN] = 'a';
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW UNALIGNED, RO test */
+	cvar = gstruct.b[rand() % B_LEN];
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, WO test */
+	gstruct.a[rand() % A_LEN] = 'a';
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, RO test */
+	cvar = gstruct.a[rand() % A_LEN];
+}
+
+static void check_success(pid_t child_pid, const char *name, const char *type,
+			  unsigned long saddr, int len)
+{
+	int status;
+	siginfo_t siginfo;
+	unsigned long eaddr = (saddr + len - 1) | 0x7;
+
+	saddr &= ~0x7;
+
+	/* Wait for the child to SIGTRAP */
+	wait(&status);
+
+	ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &siginfo);
+
+	if (!WIFSTOPPED(status) || WSTOPSIG(status) != SIGTRAP ||
+	    (unsigned long)siginfo.si_addr < saddr ||
+	    (unsigned long)siginfo.si_addr > eaddr) {
+		printf("%s, %s, len: %d: Fail\n", name, type, len);
+		exit(-1);
+	}
+
+	printf("%s, %s, len: %d: Ok\n", name, type, len);
+
+	if (!is_8xx) {
+		/*
+		 * For ptrace registered watchpoint, signal is generated
+		 * before executing load/store. Singlestep the instruction
+		 * and then continue the test.
+		 */
+		ptrace(PTRACE_SINGLESTEP, child_pid, NULL, 0);
+		wait(NULL);
+	}
+}
+
+static void ptrace_set_debugreg(pid_t child_pid, unsigned long wp_addr)
+{
+	if (ptrace(PTRACE_SET_DEBUGREG, child_pid, 0, wp_addr)) {
+		perror("PTRACE_SET_DEBUGREG failed");
+		exit(-1);
+	}
+}
+
+static int ptrace_sethwdebug(pid_t child_pid, struct ppc_hw_breakpoint *info)
+{
+	int wh = ptrace(PPC_PTRACE_SETHWDEBUG, child_pid, 0, info);
+
+	if (wh <= 0) {
+		perror("PPC_PTRACE_SETHWDEBUG failed");
+		exit(-1);
+	}
+	return wh;
+}
+
+static void ptrace_delhwdebug(pid_t child_pid, int wh)
+{
+	if (ptrace(PPC_PTRACE_DELHWDEBUG, child_pid, 0, wh) < 0) {
+		perror("PPC_PTRACE_DELHWDEBUG failed");
+		exit(-1);
+	}
+}
+
+#define DABR_READ_SHIFT		0
+#define DABR_WRITE_SHIFT	1
+#define DABR_TRANSLATION_SHIFT	2
+
+static int test_set_debugreg(pid_t child_pid)
+{
+	unsigned long wp_addr = (unsigned long)&glvar;
+	char *name = "PTRACE_SET_DEBUGREG";
+	int len;
+
+	/* PTRACE_SET_DEBUGREG, WO test*/
+	wp_addr &= ~0x7UL;
+	wp_addr |= (1UL << DABR_WRITE_SHIFT);
+	wp_addr |= (1UL << DABR_TRANSLATION_SHIFT);
+	for (len = 1; len <= sizeof(glvar); len <<= 1) {
+		ptrace_set_debugreg(child_pid, wp_addr);
+		ptrace(PTRACE_CONT, child_pid, NULL, 0);
+		check_success(child_pid, name, "WO", wp_addr, len);
+	}
+
+	/* PTRACE_SET_DEBUGREG, RO test */
+	wp_addr &= ~0x7UL;
+	wp_addr |= (1UL << DABR_READ_SHIFT);
+	wp_addr |= (1UL << DABR_TRANSLATION_SHIFT);
+	for (len = 1; len <= sizeof(glvar); len <<= 1) {
+		ptrace_set_debugreg(child_pid, wp_addr);
+		ptrace(PTRACE_CONT, child_pid, NULL, 0);
+		check_success(child_pid, name, "RO", wp_addr, len);
+	}
+
+	/* PTRACE_SET_DEBUGREG, RW test */
+	wp_addr &= ~0x7UL;
+	wp_addr |= (1Ul << DABR_READ_SHIFT);
+	wp_addr |= (1UL << DABR_WRITE_SHIFT);
+	wp_addr |= (1UL << DABR_TRANSLATION_SHIFT);
+	for (len = 1; len <= sizeof(glvar); len <<= 1) {
+		ptrace_set_debugreg(child_pid, wp_addr);
+		ptrace(PTRACE_CONT, child_pid, NULL, 0);
+		check_success(child_pid, name, "RW", wp_addr, len);
+	}
+
+	ptrace_set_debugreg(child_pid, 0);
+	return 0;
+}
+
+static int test_set_debugreg_kernel_userspace(pid_t child_pid)
+{
+	unsigned long wp_addr = (unsigned long)cwd;
+	char *name = "PTRACE_SET_DEBUGREG";
+
+	/* PTRACE_SET_DEBUGREG, Kernel Access Userspace test */
+	wp_addr &= ~0x7UL;
+	wp_addr |= (1Ul << DABR_READ_SHIFT);
+	wp_addr |= (1UL << DABR_WRITE_SHIFT);
+	wp_addr |= (1UL << DABR_TRANSLATION_SHIFT);
+	ptrace_set_debugreg(child_pid, wp_addr);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "Kernel Access Userspace", wp_addr, 8);
+
+	ptrace_set_debugreg(child_pid, 0);
+	return 0;
+}
+
+static void get_ppc_hw_breakpoint(struct ppc_hw_breakpoint *info, int type,
+				  unsigned long addr, int len)
+{
+	info->version = 1;
+	info->trigger_type = type;
+	info->condition_mode = PPC_BREAKPOINT_CONDITION_NONE;
+	info->addr = (__u64)addr;
+	info->addr2 = (__u64)addr + len;
+	info->condition_value = 0;
+	if (!len)
+		info->addr_mode = PPC_BREAKPOINT_MODE_EXACT;
+	else
+		info->addr_mode = PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE;
+}
+
+static void test_sethwdebug_exact(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr = (unsigned long)&glvar;
+	char *name = "PPC_PTRACE_SETHWDEBUG, MODE_EXACT";
+	int len = 1; /* hardcoded in kernel */
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, WO test */
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr, 0);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "WO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RO test */
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_READ, wp_addr, 0);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, RW test */
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_RW, wp_addr, 0);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RW", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+}
+
+static void test_sethwdebug_exact_kernel_userspace(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr = (unsigned long)&cwd;
+	char *name = "PPC_PTRACE_SETHWDEBUG, MODE_EXACT";
+	int len = 1; /* hardcoded in kernel */
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_EXACT, Kernel Access Userspace test */
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr, 0);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "Kernel Access Userspace", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+}
+
+static void test_sethwdebug_range_aligned(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr;
+	char *name = "PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED";
+	int len;
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, WO test */
+	wp_addr = (unsigned long)&gstruct.a;
+	len = A_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "WO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RO test */
+	wp_addr = (unsigned long)&gstruct.a;
+	len = A_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_READ, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW ALIGNED, RW test */
+	wp_addr = (unsigned long)&gstruct.a;
+	len = A_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_RW, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RW", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+}
+
+static void test_multi_sethwdebug_range(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info1, info2;
+	unsigned long wp_addr1, wp_addr2;
+	char *name1 = "PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW ALIGNED";
+	char *name2 = "PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW UNALIGNED";
+	int len1, len2;
+	int wh1, wh2;
+
+	wp_addr1 = (unsigned long)&gstruct.a;
+	wp_addr2 = (unsigned long)&gstruct.b;
+	len1 = A_LEN;
+	len2 = B_LEN;
+	get_ppc_hw_breakpoint(&info1, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr1, len1);
+	get_ppc_hw_breakpoint(&info2, PPC_BREAKPOINT_TRIGGER_READ, wp_addr2, len2);
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW ALIGNED, WO test */
+	wh1 = ptrace_sethwdebug(child_pid, &info1);
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DW UNALIGNED, RO test */
+	wh2 = ptrace_sethwdebug(child_pid, &info2);
+
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name1, "WO", wp_addr1, len1);
+
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name2, "RO", wp_addr2, len2);
+
+	ptrace_delhwdebug(child_pid, wh1);
+	ptrace_delhwdebug(child_pid, wh2);
+}
+
+static void test_multi_sethwdebug_range_dawr_overlap(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info1, info2;
+	unsigned long wp_addr1, wp_addr2;
+	char *name = "PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap";
+	int len1, len2;
+	int wh1, wh2;
+
+	wp_addr1 = (unsigned long)&gstruct.a;
+	wp_addr2 = (unsigned long)&gstruct.a;
+	len1 = A_LEN;
+	len2 = A_LEN;
+	get_ppc_hw_breakpoint(&info1, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr1, len1);
+	get_ppc_hw_breakpoint(&info2, PPC_BREAKPOINT_TRIGGER_READ, wp_addr2, len2);
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, WO test */
+	wh1 = ptrace_sethwdebug(child_pid, &info1);
+
+	/* PPC_PTRACE_SETHWDEBUG 2, MODE_RANGE, DAWR Overlap, RO test */
+	wh2 = ptrace_sethwdebug(child_pid, &info2);
+
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "WO", wp_addr1, len1);
+
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RO", wp_addr2, len2);
+
+	ptrace_delhwdebug(child_pid, wh1);
+	ptrace_delhwdebug(child_pid, wh2);
+}
+
+static void test_sethwdebug_range_unaligned(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr;
+	char *name = "PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED";
+	int len;
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, WO test */
+	wp_addr = (unsigned long)&gstruct.b;
+	len = B_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "WO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, RO test */
+	wp_addr = (unsigned long)&gstruct.b;
+	len = B_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_READ, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RO", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, RW test */
+	wp_addr = (unsigned long)&gstruct.b;
+	len = B_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_RW, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RW", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+
+}
+
+static void test_sethwdebug_range_unaligned_dar(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr;
+	char *name = "PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, DAR OUTSIDE";
+	int len;
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, MODE_RANGE, DW UNALIGNED, DAR OUTSIDE, RW test */
+	wp_addr = (unsigned long)&gstruct.b;
+	len = B_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_WRITE, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RW", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+}
+
+static void test_sethwdebug_dawr_max_range(pid_t child_pid)
+{
+	struct ppc_hw_breakpoint info;
+	unsigned long wp_addr;
+	char *name = "PPC_PTRACE_SETHWDEBUG, DAWR_MAX_LEN";
+	int len;
+	int wh;
+
+	/* PPC_PTRACE_SETHWDEBUG, DAWR_MAX_LEN, RW test */
+	wp_addr = (unsigned long)big_var;
+	len = DAWR_MAX_LEN;
+	get_ppc_hw_breakpoint(&info, PPC_BREAKPOINT_TRIGGER_RW, wp_addr, len);
+	wh = ptrace_sethwdebug(child_pid, &info);
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	check_success(child_pid, name, "RW", wp_addr, len);
+	ptrace_delhwdebug(child_pid, wh);
+}
+
+/* Set the breakpoints and check the child successfully trigger them */
+static void
+run_tests(pid_t child_pid, struct ppc_debug_info *dbginfo, bool dawr)
+{
+	test_set_debugreg(child_pid);
+	test_set_debugreg_kernel_userspace(child_pid);
+	test_sethwdebug_exact(child_pid);
+	test_sethwdebug_exact_kernel_userspace(child_pid);
+	if (dbginfo->features & PPC_DEBUG_FEATURE_DATA_BP_RANGE) {
+		test_sethwdebug_range_aligned(child_pid);
+		if (dawr || is_8xx) {
+			test_sethwdebug_range_unaligned(child_pid);
+			test_sethwdebug_range_unaligned_dar(child_pid);
+			test_sethwdebug_dawr_max_range(child_pid);
+			if (dbginfo->num_data_bps > 1) {
+				test_multi_sethwdebug_range(child_pid);
+				test_multi_sethwdebug_range_dawr_overlap(child_pid);
+			}
+		}
+	}
+}
+
+static int ptrace_hwbreak(void)
+{
+	pid_t child_pid;
+	struct ppc_debug_info dbginfo;
+	bool dawr;
+
+	child_pid = fork();
+	if (!child_pid) {
+		test_workload();
+		return 0;
+	}
+
+	wait(NULL);
+
+	get_dbginfo(child_pid, &dbginfo);
+	SKIP_IF_MSG(dbginfo.num_data_bps == 0, "No data breakpoints present");
+
+	dawr = dawr_present(&dbginfo);
+	run_tests(child_pid, &dbginfo, dawr);
+
+	/* Let the child exit first. */
+	ptrace(PTRACE_CONT, child_pid, NULL, 0);
+	wait(NULL);
+
+	/*
+	 * Testcases exits immediately with -1 on any failure. If
+	 * it has reached here, it means all tests were successful.
+	 */
+	return TEST_PASS;
+}
+
+int main(int argc, char **argv, char **envp)
+{
+	is_8xx = mfspr(SPRN_PVR) == PVR_8xx;
+
+	return test_harness(ptrace_hwbreak, "ptrace-hwbreak");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-perf-asm.S b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-asm.S
new file mode 100644
index 000000000000..9aa2e58f3189
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-asm.S
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <ppc-asm.h>
+
+.global same_watch_addr_load
+.global same_watch_addr_trap
+
+FUNC_START(same_watch_addr_child)
+	nop
+same_watch_addr_load:
+	ld 0,0(3)
+	nop
+same_watch_addr_trap:
+	trap
+	blr
+FUNC_END(same_watch_addr_child)
+
+
+.global perf_then_ptrace_load1
+.global perf_then_ptrace_load2
+.global perf_then_ptrace_trap
+
+FUNC_START(perf_then_ptrace_child)
+	nop
+perf_then_ptrace_load1:
+	ld 0,0(3)
+perf_then_ptrace_load2:
+	ld 0,0(4)
+	nop
+perf_then_ptrace_trap:
+	trap
+	blr
+FUNC_END(perf_then_ptrace_child)
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c
new file mode 100644
index 000000000000..a0a0b9bb5854
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-perf-hwbreak.c
@@ -0,0 +1,445 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <asm/unistd.h>
+#include <linux/hw_breakpoint.h>
+#include <linux/ptrace.h>
+#include <memory.h>
+#include <stdlib.h>
+#include <sys/wait.h>
+
+#include "utils.h"
+
+/*
+ * Child subroutine that performs a load on the address, then traps
+ */
+void same_watch_addr_child(unsigned long *addr);
+
+/* Address of the ld instruction in same_watch_addr_child() */
+extern char same_watch_addr_load[];
+
+/* Address of the end trap instruction in same_watch_addr_child() */
+extern char same_watch_addr_trap[];
+
+/*
+ * Child subroutine that performs a load on the first address, then a load on
+ * the second address (with no instructions separating this from the first
+ * load), then traps.
+ */
+void perf_then_ptrace_child(unsigned long *first_addr, unsigned long *second_addr);
+
+/* Address of the first ld instruction in perf_then_ptrace_child() */
+extern char perf_then_ptrace_load1[];
+
+/* Address of the second ld instruction in perf_then_ptrace_child() */
+extern char perf_then_ptrace_load2[];
+
+/* Address of the end trap instruction in perf_then_ptrace_child() */
+extern char perf_then_ptrace_trap[];
+
+static inline long sys_ptrace(long request, pid_t pid, unsigned long addr, unsigned long data)
+{
+	return syscall(__NR_ptrace, request, pid, addr, data);
+}
+
+static long ptrace_traceme(void)
+{
+	return sys_ptrace(PTRACE_TRACEME, 0, 0, 0);
+}
+
+static long ptrace_getregs(pid_t pid, struct pt_regs *result)
+{
+	return sys_ptrace(PTRACE_GETREGS, pid, 0, (unsigned long)result);
+}
+
+static long ptrace_setregs(pid_t pid, struct pt_regs *result)
+{
+	return sys_ptrace(PTRACE_SETREGS, pid, 0, (unsigned long)result);
+}
+
+static long ptrace_cont(pid_t pid, long signal)
+{
+	return sys_ptrace(PTRACE_CONT, pid, 0, signal);
+}
+
+static long ptrace_singlestep(pid_t pid, long signal)
+{
+	return sys_ptrace(PTRACE_SINGLESTEP, pid, 0, signal);
+}
+
+static long ppc_ptrace_gethwdbginfo(pid_t pid, struct ppc_debug_info *dbginfo)
+{
+	return sys_ptrace(PPC_PTRACE_GETHWDBGINFO, pid, 0, (unsigned long)dbginfo);
+}
+
+static long ppc_ptrace_sethwdbg(pid_t pid, struct ppc_hw_breakpoint *bp_info)
+{
+	return sys_ptrace(PPC_PTRACE_SETHWDEBUG, pid, 0, (unsigned long)bp_info);
+}
+
+static long ppc_ptrace_delhwdbg(pid_t pid, int bp_id)
+{
+	return sys_ptrace(PPC_PTRACE_DELHWDEBUG, pid, 0L, bp_id);
+}
+
+static long ptrace_getreg_pc(pid_t pid, void **pc)
+{
+	struct pt_regs regs;
+	long err;
+
+	err = ptrace_getregs(pid, &regs);
+	if (err)
+		return err;
+
+	*pc = (void *)regs.nip;
+
+	return 0;
+}
+
+static long ptrace_setreg_pc(pid_t pid, void *pc)
+{
+	struct pt_regs regs;
+	long err;
+
+	err = ptrace_getregs(pid, &regs);
+	if (err)
+		return err;
+
+	regs.nip = (unsigned long)pc;
+
+	err = ptrace_setregs(pid, &regs);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int perf_event_open(struct perf_event_attr *attr, pid_t pid, int cpu,
+			   int group_fd, unsigned long flags)
+{
+	return syscall(__NR_perf_event_open, attr, pid, cpu, group_fd, flags);
+}
+
+static void perf_user_event_attr_set(struct perf_event_attr *attr, void *addr, u64 len)
+{
+	memset(attr, 0, sizeof(struct perf_event_attr));
+
+	attr->type		= PERF_TYPE_BREAKPOINT;
+	attr->size		= sizeof(struct perf_event_attr);
+	attr->bp_type		= HW_BREAKPOINT_R;
+	attr->bp_addr		= (u64)addr;
+	attr->bp_len		= len;
+	attr->exclude_kernel	= 1;
+	attr->exclude_hv	= 1;
+}
+
+static int perf_watchpoint_open(pid_t child_pid, void *addr, u64 len)
+{
+	struct perf_event_attr attr;
+
+	perf_user_event_attr_set(&attr, addr, len);
+	return perf_event_open(&attr, child_pid, -1, -1, 0);
+}
+
+static int perf_read_counter(int perf_fd, u64 *count)
+{
+	/*
+	 * A perf counter is retrieved by the read() syscall. It contains
+	 * the current count as 8 bytes that are interpreted as a u64
+	 */
+	ssize_t len = read(perf_fd, count, sizeof(*count));
+
+	if (len != sizeof(*count))
+		return -1;
+
+	return 0;
+}
+
+static void ppc_ptrace_init_breakpoint(struct ppc_hw_breakpoint *info,
+				       int type, void *addr, int len)
+{
+	info->version = 1;
+	info->trigger_type = type;
+	info->condition_mode = PPC_BREAKPOINT_CONDITION_NONE;
+	info->addr = (u64)addr;
+	info->addr2 = (u64)addr + len;
+	info->condition_value = 0;
+	if (!len)
+		info->addr_mode = PPC_BREAKPOINT_MODE_EXACT;
+	else
+		info->addr_mode = PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE;
+}
+
+/*
+ * Checks if we can place at least 2 watchpoints on the child process
+ */
+static int check_watchpoints(pid_t pid)
+{
+	struct ppc_debug_info dbginfo;
+
+	FAIL_IF_MSG(ppc_ptrace_gethwdbginfo(pid, &dbginfo), "PPC_PTRACE_GETHWDBGINFO failed");
+	SKIP_IF_MSG(dbginfo.num_data_bps <= 1, "Not enough data watchpoints (need at least 2)");
+
+	return 0;
+}
+
+/*
+ * Wrapper around a plain fork() call that sets up the child for
+ * ptrace-ing. Both the parent and child return from this, though
+ * the child is stopped until ptrace_cont(pid) is run by the parent.
+ */
+static int ptrace_fork_child(pid_t *pid)
+{
+	int status;
+
+	*pid = fork();
+
+	if (*pid < 0)
+		FAIL_IF_MSG(1, "Failed to fork child");
+
+	if (!*pid) {
+		FAIL_IF_EXIT_MSG(ptrace_traceme(), "PTRACE_TRACEME failed");
+		FAIL_IF_EXIT_MSG(raise(SIGSTOP), "Child failed to raise SIGSTOP");
+	} else {
+		/* Synchronise on child SIGSTOP */
+		FAIL_IF_MSG(waitpid(*pid, &status, 0) == -1, "Failed to wait for child");
+		FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	}
+
+	return 0;
+}
+
+/*
+ * Tests the interaction between ptrace and perf watching the same data.
+ *
+ * We expect ptrace to take 'priority', as it is has before-execute
+ * semantics.
+ *
+ * The perf counter should not be incremented yet because perf has after-execute
+ * semantics. E.g., if ptrace changes the child PC, we don't even execute the
+ * instruction at all.
+ *
+ * When the child is stopped for ptrace, we test both continue and single step.
+ * Both should increment the perf counter. We also test changing the PC somewhere
+ * different and stepping, which should not increment the perf counter.
+ */
+int same_watch_addr_test(void)
+{
+	struct ppc_hw_breakpoint bp_info;	/* ptrace breakpoint info */
+	int bp_id;	/* Breakpoint handle of ptrace watchpoint */
+	int perf_fd;	/* File descriptor of perf performance counter */
+	u64 perf_count;	/* Most recently fetched perf performance counter value */
+	pid_t pid;	/* PID of child process */
+	void *pc;	/* Most recently fetched child PC value */
+	int status;	/* Stop status of child after waitpid */
+	unsigned long value;	/* Dummy value to be read/written to by child */
+	int err;
+
+	err = ptrace_fork_child(&pid);
+	if (err)
+		return err;
+
+	if (!pid) {
+		same_watch_addr_child(&value);
+		exit(1);
+	}
+
+	err = check_watchpoints(pid);
+	if (err)
+		return err;
+
+	/* Place a perf watchpoint counter on value */
+	perf_fd = perf_watchpoint_open(pid, &value, sizeof(value));
+	FAIL_IF_MSG(perf_fd < 0, "Failed to open perf performance counter");
+
+	/* Place a ptrace watchpoint on value */
+	ppc_ptrace_init_breakpoint(&bp_info, PPC_BREAKPOINT_TRIGGER_READ, &value, sizeof(value));
+	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);
+	FAIL_IF_MSG(bp_id < 0, "Failed to set ptrace watchpoint");
+
+	/* Let the child run. It should stop on the ptrace watchpoint */
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load instruction");
+
+	/*
+	 * We stopped before executing the load, so perf should not have
+	 * recorded any events yet
+	 */
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 0, "perf recorded unexpected event");
+
+	/* Single stepping over the load should increment the perf counter */
+	FAIL_IF_MSG(ptrace_singlestep(pid, 0), "Failed to single step child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_load + 4, "Failed to single step load instruction");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 1, "perf counter did not increment");
+
+	/*
+	 * Set up a ptrace watchpoint on the value again and trigger it.
+	 * The perf counter should not have incremented because we do not
+	 * execute the load yet.
+	 */
+	FAIL_IF_MSG(ppc_ptrace_delhwdbg(pid, bp_id), "Failed to remove old ptrace watchpoint");
+	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);
+	FAIL_IF_MSG(bp_id < 0, "Failed to set ptrace watchpoint");
+	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load trap");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 1, "perf counter should not have changed");
+
+	/* Continuing over the load should increment the perf counter */
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 2, "perf counter did not increment");
+
+	/*
+	 * If we set the child PC back to the load instruction, then continue,
+	 * we should reach the end trap (because ptrace is one-shot) and have
+	 * another perf event.
+	 */
+	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 3, "perf counter did not increment");
+
+	/*
+	 * If we set the child PC back to the load instruction, set a ptrace
+	 * watchpoint on the load, then continue, we should immediately get
+	 * the ptrace trap without incrementing the perf counter
+	 */
+	FAIL_IF_MSG(ppc_ptrace_delhwdbg(pid, bp_id), "Failed to remove old ptrace watchpoint");
+	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);
+	FAIL_IF_MSG(bp_id < 0, "Failed to set ptrace watchpoint");
+	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load), "Failed to set child PC");
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_load, "Child did not stop on load instruction");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 3, "perf counter should not have changed");
+
+	/*
+	 * If we change the PC while stopped on the load instruction, we should
+	 * not increment the perf counter (because ptrace is before-execute,
+	 * perf is after-execute).
+	 */
+	FAIL_IF_MSG(ptrace_setreg_pc(pid, same_watch_addr_load + 4), "Failed to set child PC");
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != same_watch_addr_trap, "Child did not stop on end trap");
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 3, "perf counter should not have changed");
+
+	/* Clean up child */
+	FAIL_IF_MSG(kill(pid, SIGKILL) != 0, "Failed to kill child");
+
+	return 0;
+}
+
+/*
+ * Tests the interaction between ptrace and perf when:
+ * 1. perf watches a value
+ * 2. ptrace watches a different value
+ * 3. The perf value is read, then the ptrace value is read immediately after
+ *
+ * A breakpoint implementation may accidentally misattribute/skip one of
+ * the ptrace or perf handlers, as interrupt based work is done after perf
+ * and before ptrace.
+ *
+ * We expect the perf counter to increment before the ptrace watchpoint
+ * triggers.
+ */
+int perf_then_ptrace_test(void)
+{
+	struct ppc_hw_breakpoint bp_info;	/* ptrace breakpoint info */
+	int bp_id;	/* Breakpoint handle of ptrace watchpoint */
+	int perf_fd;	/* File descriptor of perf performance counter */
+	u64 perf_count;	/* Most recently fetched perf performance counter value */
+	pid_t pid;	/* PID of child process */
+	void *pc;	/* Most recently fetched child PC value */
+	int status;	/* Stop status of child after waitpid */
+	unsigned long perf_value;	/* Dummy value to be watched by perf */
+	unsigned long ptrace_value;	/* Dummy value to be watched by ptrace */
+	int err;
+
+	err = ptrace_fork_child(&pid);
+	if (err)
+		return err;
+
+	/*
+	 * If we are the child, run a subroutine that reads the perf value,
+	 * then reads the ptrace value with consecutive load instructions
+	 */
+	if (!pid) {
+		perf_then_ptrace_child(&perf_value, &ptrace_value);
+		exit(0);
+	}
+
+	err = check_watchpoints(pid);
+	if (err)
+		return err;
+
+	/* Place a perf watchpoint counter */
+	perf_fd = perf_watchpoint_open(pid, &perf_value, sizeof(perf_value));
+	FAIL_IF_MSG(perf_fd < 0, "Failed to open perf performance counter");
+
+	/* Place a ptrace watchpoint */
+	ppc_ptrace_init_breakpoint(&bp_info, PPC_BREAKPOINT_TRIGGER_READ,
+				   &ptrace_value, sizeof(ptrace_value));
+	bp_id = ppc_ptrace_sethwdbg(pid, &bp_info);
+	FAIL_IF_MSG(bp_id < 0, "Failed to set ptrace watchpoint");
+
+	/* Let the child run. It should stop on the ptrace watchpoint */
+	FAIL_IF_MSG(ptrace_cont(pid, 0), "Failed to continue child");
+
+	FAIL_IF_MSG(waitpid(pid, &status, 0) == -1, "Failed to wait for child");
+	FAIL_IF_MSG(!WIFSTOPPED(status), "Child is not stopped");
+	FAIL_IF_MSG(ptrace_getreg_pc(pid, &pc), "Failed to get child PC");
+	FAIL_IF_MSG(pc != perf_then_ptrace_load2, "Child did not stop on ptrace load");
+
+	/* perf should have recorded the first load */
+	FAIL_IF_MSG(perf_read_counter(perf_fd, &perf_count), "Failed to read perf counter");
+	FAIL_IF_MSG(perf_count != 1, "perf counter did not increment");
+
+	/* Clean up child */
+	FAIL_IF_MSG(kill(pid, SIGKILL) != 0, "Failed to kill child");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	int err = 0;
+
+	err |= test_harness(same_watch_addr_test, "same_watch_addr");
+	err |= test_harness(perf_then_ptrace_test, "perf_then_ptrace");
+
+	return err;
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c
new file mode 100644
index 000000000000..10f63042cf91
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c
@@ -0,0 +1,306 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Ptrace test for Memory Protection Key registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ * Copyright (C) 2018 IBM Corporation.
+ */
+#include "ptrace.h"
+#include "child.h"
+#include "pkeys.h"
+
+static const char user_read[] = "[User Read (Running)]";
+static const char user_write[] = "[User Write (Running)]";
+static const char ptrace_read_running[] = "[Ptrace Read (Running)]";
+static const char ptrace_write_running[] = "[Ptrace Write (Running)]";
+
+/* Information shared between the parent and the child. */
+struct shared_info {
+	struct child_sync child_sync;
+
+	/* AMR value the parent expects to read from the child. */
+	unsigned long amr1;
+
+	/* AMR value the parent is expected to write to the child. */
+	unsigned long amr2;
+
+	/* AMR value that ptrace should refuse to write to the child. */
+	unsigned long invalid_amr;
+
+	/* IAMR value the parent expects to read from the child. */
+	unsigned long expected_iamr;
+
+	/* UAMOR value the parent expects to read from the child. */
+	unsigned long expected_uamor;
+
+	/*
+	 * IAMR and UAMOR values that ptrace should refuse to write to the child
+	 * (even though they're valid ones) because userspace doesn't have
+	 * access to those registers.
+	 */
+	unsigned long invalid_iamr;
+	unsigned long invalid_uamor;
+};
+
+static int child(struct shared_info *info)
+{
+	unsigned long reg;
+	bool disable_execute = true;
+	int pkey1, pkey2, pkey3;
+	int ret;
+
+	/* Wait until parent fills out the initial register values. */
+	ret = wait_parent(&info->child_sync);
+	if (ret)
+		return ret;
+
+	/* Get some pkeys so that we can change their bits in the AMR. */
+	pkey1 = sys_pkey_alloc(0, PKEY_DISABLE_EXECUTE);
+	if (pkey1 < 0) {
+		pkey1 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+		CHILD_FAIL_IF(pkey1 < 0, &info->child_sync);
+
+		disable_execute = false;
+	}
+
+	pkey2 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	CHILD_FAIL_IF(pkey2 < 0, &info->child_sync);
+
+	pkey3 = sys_pkey_alloc(0, PKEY_UNRESTRICTED);
+	CHILD_FAIL_IF(pkey3 < 0, &info->child_sync);
+
+	info->amr1 |= 3ul << pkeyshift(pkey1);
+	info->amr2 |= 3ul << pkeyshift(pkey2);
+	/*
+	 * invalid amr value where we try to force write
+	 * things which are deined by a uamor setting.
+	 */
+	info->invalid_amr = info->amr2 | (~0x0UL & ~info->expected_uamor);
+
+	/*
+	 * if PKEY_DISABLE_EXECUTE succeeded we should update the expected_iamr
+	 */
+	if (disable_execute)
+		info->expected_iamr |= 1ul << pkeyshift(pkey1);
+	else
+		info->expected_iamr &= ~(1ul << pkeyshift(pkey1));
+
+	/*
+	 * We allocated pkey2 and pkey 3 above. Clear the IAMR bits.
+	 */
+	info->expected_iamr &= ~(1ul << pkeyshift(pkey2));
+	info->expected_iamr &= ~(1ul << pkeyshift(pkey3));
+
+	/*
+	 * Create an IAMR value different from expected value.
+	 * Kernel will reject an IAMR and UAMOR change.
+	 */
+	info->invalid_iamr = info->expected_iamr | (1ul << pkeyshift(pkey1) | 1ul << pkeyshift(pkey2));
+	info->invalid_uamor = info->expected_uamor & ~(0x3ul << pkeyshift(pkey1));
+
+	printf("%-30s AMR: %016lx pkey1: %d pkey2: %d pkey3: %d\n",
+	       user_write, info->amr1, pkey1, pkey2, pkey3);
+
+	set_amr(info->amr1);
+
+	/* Wait for parent to read our AMR value and write a new one. */
+	ret = prod_parent(&info->child_sync);
+	CHILD_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_parent(&info->child_sync);
+	if (ret)
+		return ret;
+
+	reg = mfspr(SPRN_AMR);
+
+	printf("%-30s AMR: %016lx\n", user_read, reg);
+
+	CHILD_FAIL_IF(reg != info->amr2, &info->child_sync);
+
+	/*
+	 * Wait for parent to try to write an invalid AMR value.
+	 */
+	ret = prod_parent(&info->child_sync);
+	CHILD_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_parent(&info->child_sync);
+	if (ret)
+		return ret;
+
+	reg = mfspr(SPRN_AMR);
+
+	printf("%-30s AMR: %016lx\n", user_read, reg);
+
+	CHILD_FAIL_IF(reg != info->amr2, &info->child_sync);
+
+	/*
+	 * Wait for parent to try to write an IAMR and a UAMOR value. We can't
+	 * verify them, but we can verify that the AMR didn't change.
+	 */
+	ret = prod_parent(&info->child_sync);
+	CHILD_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_parent(&info->child_sync);
+	if (ret)
+		return ret;
+
+	reg = mfspr(SPRN_AMR);
+
+	printf("%-30s AMR: %016lx\n", user_read, reg);
+
+	CHILD_FAIL_IF(reg != info->amr2, &info->child_sync);
+
+	/* Now let parent now that we are finished. */
+
+	ret = prod_parent(&info->child_sync);
+	CHILD_FAIL_IF(ret, &info->child_sync);
+
+	return TEST_PASS;
+}
+
+static int parent(struct shared_info *info, pid_t pid)
+{
+	unsigned long regs[3];
+	int ret, status;
+
+	/*
+	 * Get the initial values for AMR, IAMR and UAMOR and communicate them
+	 * to the child.
+	 */
+	ret = ptrace_read_regs(pid, NT_PPC_PKEY, regs, 3);
+	PARENT_SKIP_IF_UNSUPPORTED(ret, &info->child_sync, "PKEYs not supported");
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	info->amr1 = info->amr2 = regs[0];
+	info->expected_iamr = regs[1];
+	info->expected_uamor = regs[2];
+
+	/* Wake up child so that it can set itself up. */
+	ret = prod_child(&info->child_sync);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_child(&info->child_sync);
+	if (ret)
+		return ret;
+
+	/* Verify that we can read the pkey registers from the child. */
+	ret = ptrace_read_regs(pid, NT_PPC_PKEY, regs, 3);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx IAMR: %016lx UAMOR: %016lx\n",
+	       ptrace_read_running, regs[0], regs[1], regs[2]);
+
+	PARENT_FAIL_IF(regs[0] != info->amr1, &info->child_sync);
+	PARENT_FAIL_IF(regs[1] != info->expected_iamr, &info->child_sync);
+	PARENT_FAIL_IF(regs[2] != info->expected_uamor, &info->child_sync);
+
+	/* Write valid AMR value in child. */
+	ret = ptrace_write_regs(pid, NT_PPC_PKEY, &info->amr2, 1);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx\n", ptrace_write_running, info->amr2);
+
+	/* Wake up child so that it can verify it changed. */
+	ret = prod_child(&info->child_sync);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_child(&info->child_sync);
+	if (ret)
+		return ret;
+
+	/* Write invalid AMR value in child. */
+	ret = ptrace_write_regs(pid, NT_PPC_PKEY, &info->invalid_amr, 1);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx\n", ptrace_write_running, info->invalid_amr);
+
+	/* Wake up child so that it can verify it didn't change. */
+	ret = prod_child(&info->child_sync);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait_child(&info->child_sync);
+	if (ret)
+		return ret;
+
+	/* Try to write to IAMR. */
+	regs[0] = info->amr1;
+	regs[1] = info->invalid_iamr;
+	ret = ptrace_write_regs(pid, NT_PPC_PKEY, regs, 2);
+	PARENT_FAIL_IF(!ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx IAMR: %016lx\n",
+	       ptrace_write_running, regs[0], regs[1]);
+
+	/* Try to write to IAMR and UAMOR. */
+	regs[2] = info->invalid_uamor;
+	ret = ptrace_write_regs(pid, NT_PPC_PKEY, regs, 3);
+	PARENT_FAIL_IF(!ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx IAMR: %016lx UAMOR: %016lx\n",
+	       ptrace_write_running, regs[0], regs[1], regs[2]);
+
+	/* Verify that all registers still have their expected values. */
+	ret = ptrace_read_regs(pid, NT_PPC_PKEY, regs, 3);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	printf("%-30s AMR: %016lx IAMR: %016lx UAMOR: %016lx\n",
+	       ptrace_read_running, regs[0], regs[1], regs[2]);
+
+	PARENT_FAIL_IF(regs[0] != info->amr2, &info->child_sync);
+	PARENT_FAIL_IF(regs[1] != info->expected_iamr, &info->child_sync);
+	PARENT_FAIL_IF(regs[2] != info->expected_uamor, &info->child_sync);
+
+	/* Wake up child so that it can verify AMR didn't change and wrap up. */
+	ret = prod_child(&info->child_sync);
+	PARENT_FAIL_IF(ret, &info->child_sync);
+
+	ret = wait(&status);
+	if (ret != pid) {
+		printf("Child's exit status not captured\n");
+		ret = TEST_PASS;
+	} else if (!WIFEXITED(status)) {
+		printf("Child exited abnormally\n");
+		ret = TEST_FAIL;
+	} else
+		ret = WEXITSTATUS(status) ? TEST_FAIL : TEST_PASS;
+
+	return ret;
+}
+
+static int ptrace_pkey(void)
+{
+	struct shared_info *info;
+	int shm_id;
+	int ret;
+	pid_t pid;
+
+	shm_id = shmget(IPC_PRIVATE, sizeof(*info), 0777 | IPC_CREAT);
+	info = shmat(shm_id, NULL, 0);
+
+	ret = init_child_sync(&info->child_sync);
+	if (ret)
+		return ret;
+
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		ret = TEST_FAIL;
+	} else if (pid == 0)
+		ret = child(info);
+	else
+		ret = parent(info, pid);
+
+	shmdt(info);
+
+	if (pid) {
+		destroy_child_sync(&info->child_sync);
+		shmctl(shm_id, IPC_RMID, NULL);
+	}
+
+	return ret;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_pkey, "ptrace_pkey");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-syscall.c b/tools/testing/selftests/powerpc/ptrace/ptrace-syscall.c
new file mode 100644
index 000000000000..3353210dcdbd
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-syscall.c
@@ -0,0 +1,228 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A ptrace test for testing PTRACE_SYSEMU, PTRACE_SETREGS and
+ * PTRACE_GETREG.  This test basically create a child process that executes
+ * syscalls and the parent process check if it is being traced appropriated.
+ *
+ * This test is heavily based on tools/testing/selftests/x86/ptrace_syscall.c
+ * test, and it was adapted to run on Powerpc by
+ * Breno Leitao <leitao@debian.org>
+ */
+#define _GNU_SOURCE
+
+#include <sys/ptrace.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <sys/user.h>
+#include <unistd.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <err.h>
+#include <string.h>
+#include <sys/auxv.h>
+#include "utils.h"
+
+/* Bitness-agnostic defines for user_regs_struct fields. */
+#define user_syscall_nr	gpr[0]
+#define user_arg0		gpr[3]
+#define user_arg1		gpr[4]
+#define user_arg2		gpr[5]
+#define user_arg3		gpr[6]
+#define user_arg4		gpr[7]
+#define user_arg5		gpr[8]
+#define user_ip		nip
+
+#define PTRACE_SYSEMU		0x1d
+
+static int nerrs;
+
+static void wait_trap(pid_t chld)
+{
+	siginfo_t si;
+
+	if (waitid(P_PID, chld, &si, WEXITED|WSTOPPED) != 0)
+		err(1, "waitid");
+	if (si.si_pid != chld)
+		errx(1, "got unexpected pid in event\n");
+	if (si.si_code != CLD_TRAPPED)
+		errx(1, "got unexpected event type %d\n", si.si_code);
+}
+
+static void test_ptrace_syscall_restart(void)
+{
+	int status;
+	struct pt_regs regs;
+	pid_t chld;
+
+	printf("[RUN]\tptrace-induced syscall restart\n");
+
+	chld = fork();
+	if (chld < 0)
+		err(1, "fork");
+
+	/*
+	 * Child process is running 4 syscalls after ptrace.
+	 *
+	 * 1) getpid()
+	 * 2) gettid()
+	 * 3) tgkill() -> Send SIGSTOP
+	 * 4) gettid() -> Where the tests will happen essentially
+	 */
+	if (chld == 0) {
+		if (ptrace(PTRACE_TRACEME, 0, 0, 0) != 0)
+			err(1, "PTRACE_TRACEME");
+
+		pid_t pid = getpid(), tid = syscall(SYS_gettid);
+
+		printf("\tChild will make one syscall\n");
+		syscall(SYS_tgkill, pid, tid, SIGSTOP);
+
+		syscall(SYS_gettid, 10, 11, 12, 13, 14, 15);
+		_exit(0);
+	}
+	/* Parent process below */
+
+	/* Wait for SIGSTOP sent by tgkill above. */
+	if (waitpid(chld, &status, 0) != chld || !WIFSTOPPED(status))
+		err(1, "waitpid");
+
+	printf("[RUN]\tSYSEMU\n");
+	if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0)
+		err(1, "PTRACE_SYSEMU");
+	wait_trap(chld);
+
+	if (ptrace(PTRACE_GETREGS, chld, 0, &regs) != 0)
+		err(1, "PTRACE_GETREGS");
+
+	/*
+	 * Ptrace trapped prior to executing the syscall, thus r3 still has
+	 * the syscall number instead of the sys_gettid() result
+	 */
+	if (regs.user_syscall_nr != SYS_gettid ||
+	    regs.user_arg0 != 10 || regs.user_arg1 != 11 ||
+	    regs.user_arg2 != 12 || regs.user_arg3 != 13 ||
+	    regs.user_arg4 != 14 || regs.user_arg5 != 15) {
+		printf("[FAIL]\tInitial args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n",
+			(unsigned long)regs.user_syscall_nr,
+			(unsigned long)regs.user_arg0,
+			(unsigned long)regs.user_arg1,
+			(unsigned long)regs.user_arg2,
+			(unsigned long)regs.user_arg3,
+			(unsigned long)regs.user_arg4,
+			(unsigned long)regs.user_arg5);
+		 nerrs++;
+	} else {
+		printf("[OK]\tInitial nr and args are correct\n"); }
+
+	printf("[RUN]\tRestart the syscall (ip = 0x%lx)\n",
+	       (unsigned long)regs.user_ip);
+
+	/*
+	 * Rewind to retry the same syscall again. This will basically test
+	 * the rewind process together with PTRACE_SETREGS and PTRACE_GETREGS.
+	 */
+	regs.user_ip -= 4;
+	if (ptrace(PTRACE_SETREGS, chld, 0, &regs) != 0)
+		err(1, "PTRACE_SETREGS");
+
+	if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0)
+		err(1, "PTRACE_SYSEMU");
+	wait_trap(chld);
+
+	if (ptrace(PTRACE_GETREGS, chld, 0, &regs) != 0)
+		err(1, "PTRACE_GETREGS");
+
+	if (regs.user_syscall_nr != SYS_gettid ||
+	    regs.user_arg0 != 10 || regs.user_arg1 != 11 ||
+	    regs.user_arg2 != 12 || regs.user_arg3 != 13 ||
+	    regs.user_arg4 != 14 || regs.user_arg5 != 15) {
+		printf("[FAIL]\tRestart nr or args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n",
+			(unsigned long)regs.user_syscall_nr,
+			(unsigned long)regs.user_arg0,
+			(unsigned long)regs.user_arg1,
+			(unsigned long)regs.user_arg2,
+			(unsigned long)regs.user_arg3,
+			(unsigned long)regs.user_arg4,
+			(unsigned long)regs.user_arg5);
+		nerrs++;
+	} else {
+		printf("[OK]\tRestarted nr and args are correct\n");
+	}
+
+	printf("[RUN]\tChange nr and args and restart the syscall (ip = 0x%lx)\n",
+	       (unsigned long)regs.user_ip);
+
+	/*
+	 * Inject a new syscall (getpid) in the same place the previous
+	 * syscall (gettid), rewind and re-execute.
+	 */
+	regs.user_syscall_nr = SYS_getpid;
+	regs.user_arg0 = 20;
+	regs.user_arg1 = 21;
+	regs.user_arg2 = 22;
+	regs.user_arg3 = 23;
+	regs.user_arg4 = 24;
+	regs.user_arg5 = 25;
+	regs.user_ip -= 4;
+
+	if (ptrace(PTRACE_SETREGS, chld, 0, &regs) != 0)
+		err(1, "PTRACE_SETREGS");
+
+	if (ptrace(PTRACE_SYSEMU, chld, 0, 0) != 0)
+		err(1, "PTRACE_SYSEMU");
+	wait_trap(chld);
+
+	if (ptrace(PTRACE_GETREGS, chld, 0, &regs) != 0)
+		err(1, "PTRACE_GETREGS");
+
+	/* Check that ptrace stopped at the new syscall that was
+	 * injected, and guarantee that it haven't executed, i.e, user_args
+	 * contain the arguments and not the syscall return value, for
+	 * instance.
+	 */
+	if (regs.user_syscall_nr != SYS_getpid
+		|| regs.user_arg0 != 20 || regs.user_arg1 != 21
+		|| regs.user_arg2 != 22 || regs.user_arg3 != 23
+		|| regs.user_arg4 != 24 || regs.user_arg5 != 25) {
+
+		printf("[FAIL]\tRestart nr or args are wrong (nr=%lu, args=%lu %lu %lu %lu %lu %lu)\n",
+			(unsigned long)regs.user_syscall_nr,
+			(unsigned long)regs.user_arg0,
+			(unsigned long)regs.user_arg1,
+			(unsigned long)regs.user_arg2,
+			(unsigned long)regs.user_arg3,
+			(unsigned long)regs.user_arg4,
+			(unsigned long)regs.user_arg5);
+		nerrs++;
+	} else {
+		printf("[OK]\tReplacement nr and args are correct\n");
+	}
+
+	if (ptrace(PTRACE_CONT, chld, 0, 0) != 0)
+		err(1, "PTRACE_CONT");
+
+	if (waitpid(chld, &status, 0) != chld)
+		err(1, "waitpid");
+
+	/* Guarantee that the process executed properly, returning 0 */
+	if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) {
+		printf("[FAIL]\tChild failed\n");
+		nerrs++;
+	} else {
+		printf("[OK]\tChild exited cleanly\n");
+	}
+}
+
+int ptrace_syscall(void)
+{
+	test_ptrace_syscall_restart();
+
+	return nerrs;
+}
+
+int main(void)
+{
+	return test_harness(ptrace_syscall, "ptrace_syscall");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tar.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tar.c
new file mode 100644
index 000000000000..14726c77a6ce
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tar.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for TAR, PPR, DSCR registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "ptrace-tar.h"
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+int *cptr;
+int *pptr;
+
+void tar(void)
+{
+	unsigned long reg[3];
+	int ret;
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+	printf("%-30s TAR: %u PPR: %lx DSCR: %u\n",
+			user_write, TAR_1, PPR_1, DSCR_1);
+
+	mtspr(SPRN_TAR, TAR_1);
+	mtspr(SPRN_PPR, PPR_1);
+	mtspr(SPRN_DSCR, DSCR_1);
+
+	cptr[2] = 1;
+
+	/* Wait on parent */
+	while (!cptr[0])
+		asm volatile("" : : : "memory");
+
+	reg[0] = mfspr(SPRN_TAR);
+	reg[1] = mfspr(SPRN_PPR);
+	reg[2] = mfspr(SPRN_DSCR);
+
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			user_read, reg[0], reg[1], reg[2]);
+
+	/* Unblock the parent now */
+	cptr[1] = 1;
+	shmdt((int *)cptr);
+
+	ret = validate_tar_registers(reg, TAR_2, PPR_2, DSCR_2);
+	if (ret)
+		exit(1);
+	exit(0);
+}
+
+int trace_tar(pid_t child)
+{
+	unsigned long reg[3];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_tar_registers(child, reg));
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			ptrace_read_running, reg[0], reg[1], reg[2]);
+
+	FAIL_IF(validate_tar_registers(reg, TAR_1, PPR_1, DSCR_1));
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int trace_tar_write(pid_t child)
+{
+	FAIL_IF(start_trace(child));
+	FAIL_IF(write_tar_registers(child, TAR_2, PPR_2, DSCR_2));
+	printf("%-30s TAR: %u PPR: %lx DSCR: %u\n",
+			ptrace_write_running, TAR_2, PPR_2, DSCR_2);
+
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int ptrace_tar(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	// TAR was added in v2.07
+	SKIP_IF_MSG(!have_hwcap2(PPC_FEATURE2_ARCH_2_07), "TAR requires ISA 2.07 compatible hardware");
+
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 3, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		tar();
+
+	if (pid) {
+		pptr = (int *)shmat(shm_id, NULL, 0);
+		pptr[0] = 0;
+		pptr[1] = 0;
+
+		while (!pptr[2])
+			asm volatile("" : : : "memory");
+		ret = trace_tar(pid);
+		if (ret)
+			return ret;
+
+		ret = trace_tar_write(pid);
+		if (ret)
+			return ret;
+
+		/* Unblock the child now */
+		pptr[0] = 1;
+
+		/* Wait on child */
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+
+		shmdt((int *)pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_PASS;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tar, "ptrace_tar");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tar.h b/tools/testing/selftests/powerpc/ptrace/ptrace-tar.h
new file mode 100644
index 000000000000..d6a4c0aab73d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tar.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#define TAR_1   10
+#define TAR_2   20
+#define TAR_3   30
+#define TAR_4   40
+#define TAR_5   50
+
+#define DSCR_1  100
+#define DSCR_2  200
+#define DSCR_3  300
+#define DSCR_4  400
+#define DSCR_5  500
+
+#define PPR_1   0x4000000000000         /* or 31,31,31*/
+#define PPR_2   0x8000000000000         /* or 1,1,1 */
+#define PPR_3   0xc000000000000         /* or 6,6,6 */
+#define PPR_4   0x10000000000000        /* or 2,2,2 */
+
+char *user_read = "[User Read (Running)]";
+char *user_write = "[User Write (Running)]";
+char *ptrace_read_running = "[Ptrace Read (Running)]";
+char *ptrace_write_running = "[Ptrace Write (Running)]";
+char *ptrace_read_ckpt = "[Ptrace Read (Checkpointed)]";
+char *ptrace_write_ckpt = "[Ptrace Write (Checkpointed)]";
+
+int validate_tar_registers(unsigned long *reg, unsigned long tar,
+				unsigned long ppr, unsigned long dscr)
+{
+	int match = 1;
+
+	if (reg[0] != tar)
+		match = 0;
+
+	if (reg[1] != ppr)
+		match = 0;
+
+	if (reg[2] != dscr)
+		match = 0;
+
+	if (!match)
+		return TEST_FAIL;
+	return TEST_PASS;
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr.c
new file mode 100644
index 000000000000..7c70d62587c2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-gpr.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for GPR/FPR registers in TM context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "ptrace-gpr.h"
+#include "tm.h"
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+unsigned long *cptr, *pptr;
+
+double a = FPR_1;
+double b = FPR_2;
+double c = FPR_3;
+
+void tm_gpr(void)
+{
+	unsigned long gpr_buf[18];
+	unsigned long result, texasr;
+	double fpr_buf[32];
+
+	printf("Starting the child\n");
+	cptr = (unsigned long *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[1] = 0;
+	asm __volatile__(
+		ASM_LOAD_GPR_IMMED(gpr_1)
+		ASM_LOAD_FPR(flt_1)
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+		ASM_LOAD_GPR_IMMED(gpr_2)
+		ASM_LOAD_FPR(flt_2)
+		"tsuspend.;"
+		"li 7, 1;"
+		"stw 7, 0(%[cptr1]);"
+		"tresume.;"
+		"b .;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		/* Transaction abort handler */
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [gpr_1]"i"(GPR_1), [gpr_2]"i"(GPR_2),
+		[sprn_texasr] "i" (SPRN_TEXASR), [flt_1] "b" (&a),
+		[flt_2] "b" (&b), [cptr1] "b" (&cptr[1])
+		: "memory", "r0", "r7", "r8", "r9", "r10",
+		"r11", "r12", "r13", "r14", "r15", "r16",
+		"r17", "r18", "r19", "r20", "r21", "r22",
+		"r23", "r24", "r25", "r26", "r27", "r28",
+		"r29", "r30", "r31"
+		);
+
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+
+		shmdt((void *)cptr);
+		store_gpr(gpr_buf);
+		store_fpr(fpr_buf);
+
+		if (validate_gpr(gpr_buf, GPR_3))
+			exit(1);
+
+		if (validate_fpr_double(fpr_buf, c))
+			exit(1);
+
+		exit(0);
+	}
+	shmdt((void *)cptr);
+	exit(1);
+}
+
+int trace_tm_gpr(pid_t child)
+{
+	unsigned long gpr[18];
+	__u64 fpr[32];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_gpr(child, gpr));
+	FAIL_IF(validate_gpr(gpr, GPR_2));
+	FAIL_IF(show_fpr(child, fpr));
+	FAIL_IF(validate_fpr(fpr, FPR_2_REP));
+	FAIL_IF(show_ckpt_fpr(child, fpr));
+	FAIL_IF(validate_fpr(fpr, FPR_1_REP));
+	FAIL_IF(show_ckpt_gpr(child, gpr));
+	FAIL_IF(validate_gpr(gpr, GPR_1));
+	FAIL_IF(write_ckpt_gpr(child, GPR_3));
+	FAIL_IF(write_ckpt_fpr(child, FPR_3_REP));
+
+	pptr[0] = 1;
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+int ptrace_tm_gpr(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+	if (pid == 0)
+		tm_gpr();
+
+	if (pid) {
+		pptr = (unsigned long *)shmat(shm_id, NULL, 0);
+
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+		ret = trace_tm_gpr(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			return TEST_FAIL;
+		}
+
+		shmdt((void *)pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_gpr, "ptrace_tm_gpr");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c
new file mode 100644
index 000000000000..6c17ed099969
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for GPR/FPR registers in TM Suspend context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "ptrace-gpr.h"
+#include "tm.h"
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+int *cptr, *pptr;
+
+double a = FPR_1;
+double b = FPR_2;
+double c = FPR_3;
+double d = FPR_4;
+
+__attribute__((used)) void wait_parent(void)
+{
+	cptr[2] = 1;
+	while (!cptr[1])
+		asm volatile("" : : : "memory");
+}
+
+void tm_spd_gpr(void)
+{
+	unsigned long gpr_buf[18];
+	unsigned long result, texasr;
+	double fpr_buf[32];
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[2] = 0;
+	asm __volatile__(
+		ASM_LOAD_GPR_IMMED(gpr_1)
+		ASM_LOAD_FPR(flt_1)
+
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+
+		ASM_LOAD_GPR_IMMED(gpr_2)
+		"tsuspend.;"
+		ASM_LOAD_GPR_IMMED(gpr_4)
+		ASM_LOAD_FPR(flt_4)
+
+		"bl wait_parent;"
+		"tresume.;"
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		/* Transaction abort handler */
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [gpr_1]"i"(GPR_1), [gpr_2]"i"(GPR_2), [gpr_4]"i"(GPR_4),
+		[sprn_texasr] "i" (SPRN_TEXASR), [flt_1] "b" (&a),
+		[flt_4] "b" (&d)
+		: "memory", "r0", "r5", "r6", "r7",
+		"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+		"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+		"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31"
+		);
+
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+
+		shmdt((void *)cptr);
+		store_gpr(gpr_buf);
+		store_fpr(fpr_buf);
+
+		if (validate_gpr(gpr_buf, GPR_3))
+			exit(1);
+
+		if (validate_fpr_double(fpr_buf, c))
+			exit(1);
+		exit(0);
+	}
+	shmdt((void *)cptr);
+	exit(1);
+}
+
+int trace_tm_spd_gpr(pid_t child)
+{
+	unsigned long gpr[18];
+	__u64 fpr[32];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_gpr(child, gpr));
+	FAIL_IF(validate_gpr(gpr, GPR_4));
+	FAIL_IF(show_fpr(child, fpr));
+	FAIL_IF(validate_fpr(fpr, FPR_4_REP));
+	FAIL_IF(show_ckpt_fpr(child, fpr));
+	FAIL_IF(validate_fpr(fpr, FPR_1_REP));
+	FAIL_IF(show_ckpt_gpr(child, gpr));
+	FAIL_IF(validate_gpr(gpr, GPR_1));
+	FAIL_IF(write_ckpt_gpr(child, GPR_3));
+	FAIL_IF(write_ckpt_fpr(child, FPR_3_REP));
+
+	pptr[0] = 1;
+	pptr[1] = 1;
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int ptrace_tm_spd_gpr(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 3, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		tm_spd_gpr();
+
+	if (pid) {
+		pptr = (int *)shmat(shm_id, NULL, 0);
+		pptr[0] = 0;
+		pptr[1] = 0;
+
+		while (!pptr[2])
+			asm volatile("" : : : "memory");
+		ret = trace_tm_spd_gpr(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			shmdt((void *)pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		shmdt((void *)pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_spd_gpr, "ptrace_tm_spd_gpr");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-tar.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-tar.c
new file mode 100644
index 000000000000..afd8dc2e2097
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-tar.c
@@ -0,0 +1,171 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for TAR, PPR, DSCR registers in the TM Suspend context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "tm.h"
+#include "ptrace-tar.h"
+
+int shm_id;
+int *cptr, *pptr;
+
+__attribute__((used)) void wait_parent(void)
+{
+	cptr[2] = 1;
+	while (!cptr[1])
+		asm volatile("" : : : "memory");
+}
+
+void tm_spd_tar(void)
+{
+	unsigned long result, texasr;
+	unsigned long regs[3];
+	int ret;
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[2] = 0;
+	asm __volatile__(
+		"li	4, %[tar_1];"
+		"mtspr %[sprn_tar],  4;"	/* TAR_1 */
+		"li	4, %[dscr_1];"
+		"mtspr %[sprn_dscr], 4;"	/* DSCR_1 */
+		"or     31,31,31;"		/* PPR_1*/
+
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+
+		"li	4, %[tar_2];"
+		"mtspr %[sprn_tar],  4;"	/* TAR_2 */
+		"li	4, %[dscr_2];"
+		"mtspr %[sprn_dscr], 4;"	/* DSCR_2 */
+		"or     1,1,1;"			/* PPR_2 */
+
+		"tsuspend.;"
+		"li	4, %[tar_3];"
+		"mtspr %[sprn_tar],  4;"	/* TAR_3 */
+		"li	4, %[dscr_3];"
+		"mtspr %[sprn_dscr], 4;"	/* DSCR_3 */
+		"or     6,6,6;"			/* PPR_3 */
+		"bl wait_parent;"
+		"tresume.;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		/* Transaction abort handler */
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [sprn_dscr]"i"(SPRN_DSCR),
+		[sprn_tar]"i"(SPRN_TAR), [sprn_ppr]"i"(SPRN_PPR),
+		[sprn_texasr]"i"(SPRN_TEXASR), [tar_1]"i"(TAR_1),
+		[dscr_1]"i"(DSCR_1), [tar_2]"i"(TAR_2), [dscr_2]"i"(DSCR_2),
+		[tar_3]"i"(TAR_3), [dscr_3]"i"(DSCR_3)
+		: "memory", "r0", "r3", "r4", "r5", "r6", "lr"
+		);
+
+	/* TM failed, analyse */
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+
+		regs[0] = mfspr(SPRN_TAR);
+		regs[1] = mfspr(SPRN_PPR);
+		regs[2] = mfspr(SPRN_DSCR);
+
+		shmdt(&cptr);
+		printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+				user_read, regs[0], regs[1], regs[2]);
+
+		ret = validate_tar_registers(regs, TAR_4, PPR_4, DSCR_4);
+		if (ret)
+			exit(1);
+		exit(0);
+	}
+	shmdt(&cptr);
+	exit(1);
+}
+
+int trace_tm_spd_tar(pid_t child)
+{
+	unsigned long regs[3];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_tar_registers(child, regs));
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			ptrace_read_running, regs[0], regs[1], regs[2]);
+
+	FAIL_IF(validate_tar_registers(regs, TAR_3, PPR_3, DSCR_3));
+	FAIL_IF(show_tm_checkpointed_state(child, regs));
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			ptrace_read_ckpt, regs[0], regs[1], regs[2]);
+
+	FAIL_IF(validate_tar_registers(regs, TAR_1, PPR_1, DSCR_1));
+	FAIL_IF(write_ckpt_tar_registers(child, TAR_4, PPR_4, DSCR_4));
+	printf("%-30s TAR: %u PPR: %lx DSCR: %u\n",
+			ptrace_write_ckpt, TAR_4, PPR_4, DSCR_4);
+
+	pptr[0] = 1;
+	pptr[1] = 1;
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int ptrace_tm_spd_tar(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 3, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid == 0)
+		tm_spd_tar();
+
+	pptr = (int *)shmat(shm_id, NULL, 0);
+	pptr[0] = 0;
+	pptr[1] = 0;
+
+	if (pid) {
+		while (!pptr[2])
+			asm volatile("" : : : "memory");
+		ret = trace_tm_spd_tar(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			shmdt(&pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		shmdt(&pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_spd_tar, "ptrace_tm_spd_tar");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c
new file mode 100644
index 000000000000..14d2fac8f237
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c
@@ -0,0 +1,181 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for VMX/VSX registers in the TM Suspend context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "tm.h"
+#include "ptrace-vsx.h"
+
+int shm_id;
+int *cptr, *pptr;
+
+unsigned long fp_load[VEC_MAX];
+unsigned long fp_load_new[VEC_MAX];
+unsigned long fp_store[VEC_MAX];
+unsigned long fp_load_ckpt[VEC_MAX];
+unsigned long fp_load_ckpt_new[VEC_MAX];
+
+__attribute__((used)) void load_vsx(void)
+{
+	loadvsx(fp_load, 0);
+}
+
+__attribute__((used)) void load_vsx_new(void)
+{
+	loadvsx(fp_load_new, 0);
+}
+
+__attribute__((used)) void load_vsx_ckpt(void)
+{
+	loadvsx(fp_load_ckpt, 0);
+}
+
+__attribute__((used)) void wait_parent(void)
+{
+	cptr[2] = 1;
+	while (!cptr[1])
+		asm volatile("" : : : "memory");
+}
+
+void tm_spd_vsx(void)
+{
+	unsigned long result, texasr;
+	int ret;
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[2] = 0;
+	asm __volatile__(
+		"bl load_vsx_ckpt;"
+
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+
+		"bl load_vsx_new;"
+		"tsuspend.;"
+		"bl load_vsx;"
+		"bl wait_parent;"
+		"tresume.;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [sprn_texasr] "i"  (SPRN_TEXASR)
+		: "memory", "r0", "r3", "r4",
+		  "r7", "r8", "r9", "r10", "r11", "lr"
+		);
+
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+		shmdt((void *)cptr);
+
+		storevsx(fp_store, 0);
+		ret = compare_vsx_vmx(fp_store, fp_load_ckpt_new);
+		if (ret)
+			exit(1);
+		exit(0);
+	}
+	shmdt((void *)cptr);
+	exit(1);
+}
+
+int trace_tm_spd_vsx(pid_t child)
+{
+	unsigned long vsx[VSX_MAX];
+	unsigned long vmx[VMX_MAX + 2][2];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_vsx(child, vsx));
+	FAIL_IF(validate_vsx(vsx, fp_load));
+	FAIL_IF(show_vmx(child, vmx));
+	FAIL_IF(validate_vmx(vmx, fp_load));
+	FAIL_IF(show_vsx_ckpt(child, vsx));
+	FAIL_IF(validate_vsx(vsx, fp_load_ckpt));
+	FAIL_IF(show_vmx_ckpt(child, vmx));
+	FAIL_IF(validate_vmx(vmx, fp_load_ckpt));
+
+	memset(vsx, 0, sizeof(vsx));
+	memset(vmx, 0, sizeof(vmx));
+
+	load_vsx_vmx(fp_load_ckpt_new, vsx, vmx);
+
+	FAIL_IF(write_vsx_ckpt(child, vsx));
+	FAIL_IF(write_vmx_ckpt(child, vmx));
+
+	pptr[0] = 1;
+	pptr[1] = 1;
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+int ptrace_tm_spd_vsx(void)
+{
+	pid_t pid;
+	int ret, status, i;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 3, 0777|IPC_CREAT);
+
+	for (i = 0; i < 128; i++) {
+		fp_load[i] = 1 + rand();
+		fp_load_new[i] = 1 + 2 * rand();
+		fp_load_ckpt[i] = 1 + 3 * rand();
+		fp_load_ckpt_new[i] = 1 + 4 * rand();
+	}
+
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		tm_spd_vsx();
+
+	if (pid) {
+		pptr = (int *)shmat(shm_id, NULL, 0);
+		while (!pptr[2])
+			asm volatile("" : : : "memory");
+
+		ret = trace_tm_spd_vsx(pid);
+		if (ret) {
+			kill(pid, SIGKILL);
+			shmdt((void *)pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		shmdt((void *)pptr);
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_spd_vsx, "ptrace_tm_spd_vsx");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr.c
new file mode 100644
index 000000000000..e64cdb04cecf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-spr.c
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test TM SPR registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "tm.h"
+
+/* Tracee and tracer shared data */
+struct shared {
+	int flag;
+	struct tm_spr_regs regs;
+};
+unsigned long tfhar;
+
+int shm_id;
+struct shared *cptr, *pptr;
+
+int shm_id1;
+int *cptr1, *pptr1;
+
+#define TM_KVM_SCHED   0xe0000001ac000001
+int validate_tm_spr(struct tm_spr_regs *regs)
+{
+	FAIL_IF(regs->tm_tfhar != tfhar);
+	FAIL_IF((regs->tm_texasr == TM_KVM_SCHED) && (regs->tm_tfiar != 0));
+
+	return TEST_PASS;
+}
+
+void tm_spr(void)
+{
+	unsigned long result, texasr;
+	int ret;
+
+	cptr = (struct shared *)shmat(shm_id, NULL, 0);
+	cptr1 = (int *)shmat(shm_id1, NULL, 0);
+
+trans:
+	cptr1[0] = 0;
+	asm __volatile__(
+		"1: ;"
+		/* TM failover handler should follow "tbegin.;" */
+		"mflr 31;"
+		"bl 4f;"	/* $ = TFHAR - 12 */
+		"4: ;"
+		"mflr %[tfhar];"
+		"mtlr 31;"
+
+		"tbegin.;"
+		"beq 2f;"
+
+		"tsuspend.;"
+		"li 8, 1;"
+		"sth 8, 0(%[cptr1]);"
+		"tresume.;"
+		"b .;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		"2: ;"
+
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+		: [tfhar] "=r" (tfhar), [res] "=r" (result),
+		[texasr] "=r" (texasr), [cptr1] "=b" (cptr1)
+		: [sprn_texasr] "i"  (SPRN_TEXASR)
+		: "memory", "r0", "r8", "r31"
+		);
+
+	/* There are 2 32bit instructions before tbegin. */
+	tfhar += 12;
+
+	if (result) {
+		if (!cptr->flag)
+			goto trans;
+
+		ret = validate_tm_spr((struct tm_spr_regs *)&cptr->regs);
+		shmdt((void *)cptr);
+		shmdt((void *)cptr1);
+		if (ret)
+			exit(1);
+		exit(0);
+	}
+	shmdt((void *)cptr);
+	shmdt((void *)cptr1);
+	exit(1);
+}
+
+int trace_tm_spr(pid_t child)
+{
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_tm_spr(child, (struct tm_spr_regs *)&pptr->regs));
+
+	printf("TFHAR: %lx TEXASR: %lx TFIAR: %lx\n", pptr->regs.tm_tfhar,
+				pptr->regs.tm_texasr, pptr->regs.tm_tfiar);
+
+	pptr->flag = 1;
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+int ptrace_tm_spr(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(struct shared), 0777|IPC_CREAT);
+	shm_id1 = shmget(IPC_PRIVATE, sizeof(int), 0777|IPC_CREAT);
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		tm_spr();
+
+	if (pid) {
+		pptr = (struct shared *)shmat(shm_id, NULL, 0);
+		pptr1 = (int *)shmat(shm_id1, NULL, 0);
+
+		while (!pptr1[0])
+			asm volatile("" : : : "memory");
+		ret = trace_tm_spr(pid);
+		if (ret) {
+			kill(pid, SIGKILL);
+			shmdt((void *)pptr);
+			shmdt((void *)pptr1);
+			shmctl(shm_id, IPC_RMID, NULL);
+			shmctl(shm_id1, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		shmdt((void *)pptr);
+		shmdt((void *)pptr1);
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		shmctl(shm_id1, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_spr, "ptrace_tm_spr");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-tar.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-tar.c
new file mode 100644
index 000000000000..3963d4b0429f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-tar.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for TAR, PPR, DSCR registers in the TM context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "tm.h"
+#include "ptrace-tar.h"
+
+int shm_id;
+unsigned long *cptr, *pptr;
+
+
+void tm_tar(void)
+{
+	unsigned long result, texasr;
+	unsigned long regs[3];
+	int ret;
+
+	cptr = (unsigned long *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[1] = 0;
+	asm __volatile__(
+		"li	4, %[tar_1];"
+		"mtspr %[sprn_tar],  4;"	/* TAR_1 */
+		"li	4, %[dscr_1];"
+		"mtspr %[sprn_dscr], 4;"	/* DSCR_1 */
+		"or     31,31,31;"		/* PPR_1*/
+
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+
+		"li	4, %[tar_2];"
+		"mtspr %[sprn_tar],  4;"	/* TAR_2 */
+		"li	4, %[dscr_2];"
+		"mtspr %[sprn_dscr], 4;"	/* DSCR_2 */
+		"or     1,1,1;"			/* PPR_2 */
+		"tsuspend.;"
+		"li 0, 1;"
+		"stw 0, 0(%[cptr1]);"
+		"tresume.;"
+		"b .;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		/* Transaction abort handler */
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [sprn_dscr]"i"(SPRN_DSCR), [sprn_tar]"i"(SPRN_TAR),
+		[sprn_ppr]"i"(SPRN_PPR), [sprn_texasr]"i"(SPRN_TEXASR),
+		[tar_1]"i"(TAR_1), [dscr_1]"i"(DSCR_1), [tar_2]"i"(TAR_2),
+		[dscr_2]"i"(DSCR_2), [cptr1] "b" (&cptr[1])
+		: "memory", "r0", "r3", "r4", "r5", "r6"
+		);
+
+	/* TM failed, analyse */
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+
+		regs[0] = mfspr(SPRN_TAR);
+		regs[1] = mfspr(SPRN_PPR);
+		regs[2] = mfspr(SPRN_DSCR);
+
+		shmdt(&cptr);
+		printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+				user_read, regs[0], regs[1], regs[2]);
+
+		ret = validate_tar_registers(regs, TAR_4, PPR_4, DSCR_4);
+		if (ret)
+			exit(1);
+		exit(0);
+	}
+	shmdt(&cptr);
+	exit(1);
+}
+
+int trace_tm_tar(pid_t child)
+{
+	unsigned long regs[3];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_tar_registers(child, regs));
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			ptrace_read_running, regs[0], regs[1], regs[2]);
+
+	FAIL_IF(validate_tar_registers(regs, TAR_2, PPR_2, DSCR_2));
+	FAIL_IF(show_tm_checkpointed_state(child, regs));
+	printf("%-30s TAR: %lu PPR: %lx DSCR: %lu\n",
+			ptrace_read_ckpt, regs[0], regs[1], regs[2]);
+
+	FAIL_IF(validate_tar_registers(regs, TAR_1, PPR_1, DSCR_1));
+	FAIL_IF(write_ckpt_tar_registers(child, TAR_4, PPR_4, DSCR_4));
+	printf("%-30s TAR: %u PPR: %lx DSCR: %u\n",
+			ptrace_write_ckpt, TAR_4, PPR_4, DSCR_4);
+
+	pptr[0] = 1;
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int ptrace_tm_tar(void)
+{
+	pid_t pid;
+	int ret, status;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
+	pid = fork();
+	if (pid == 0)
+		tm_tar();
+
+	pptr = (unsigned long *)shmat(shm_id, NULL, 0);
+	pptr[0] = 0;
+
+	if (pid) {
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+		ret = trace_tm_tar(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			shmdt(&pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+		shmdt(&pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_tar, "ptrace_tm_tar");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx.c b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx.c
new file mode 100644
index 000000000000..8c925d734a72
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-tm-vsx.c
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for VMX/VSX registers in the TM context
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "tm.h"
+#include "ptrace-vsx.h"
+
+int shm_id;
+unsigned long *cptr, *pptr;
+
+unsigned long fp_load[VEC_MAX];
+unsigned long fp_store[VEC_MAX];
+unsigned long fp_load_ckpt[VEC_MAX];
+unsigned long fp_load_ckpt_new[VEC_MAX];
+
+__attribute__((used)) void load_vsx(void)
+{
+	loadvsx(fp_load, 0);
+}
+
+__attribute__((used)) void load_vsx_ckpt(void)
+{
+	loadvsx(fp_load_ckpt, 0);
+}
+
+void tm_vsx(void)
+{
+	unsigned long result, texasr;
+	int ret;
+
+	cptr = (unsigned long *)shmat(shm_id, NULL, 0);
+
+trans:
+	cptr[1] = 0;
+	asm __volatile__(
+		"bl load_vsx_ckpt;"
+
+		"1: ;"
+		"tbegin.;"
+		"beq 2f;"
+
+		"bl load_vsx;"
+		"tsuspend.;"
+		"li 7, 1;"
+		"stw 7, 0(%[cptr1]);"
+		"tresume.;"
+		"b .;"
+
+		"tend.;"
+		"li 0, 0;"
+		"ori %[res], 0, 0;"
+		"b 3f;"
+
+		"2: ;"
+		"li 0, 1;"
+		"ori %[res], 0, 0;"
+		"mfspr %[texasr], %[sprn_texasr];"
+
+		"3: ;"
+		: [res] "=r" (result), [texasr] "=r" (texasr)
+		: [sprn_texasr] "i"  (SPRN_TEXASR), [cptr1] "b" (&cptr[1])
+		: "memory", "r0", "r3", "r4",
+		  "r7", "r8", "r9", "r10", "r11", "lr"
+		);
+
+	if (result) {
+		if (!cptr[0])
+			goto trans;
+
+		shmdt((void *)cptr);
+		storevsx(fp_store, 0);
+		ret = compare_vsx_vmx(fp_store, fp_load_ckpt_new);
+		if (ret)
+			exit(1);
+		exit(0);
+	}
+	shmdt((void *)cptr);
+	exit(1);
+}
+
+int trace_tm_vsx(pid_t child)
+{
+	unsigned long vsx[VSX_MAX];
+	unsigned long vmx[VMX_MAX + 2][2];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_vsx(child, vsx));
+	FAIL_IF(validate_vsx(vsx, fp_load));
+	FAIL_IF(show_vmx(child, vmx));
+	FAIL_IF(validate_vmx(vmx, fp_load));
+	FAIL_IF(show_vsx_ckpt(child, vsx));
+	FAIL_IF(validate_vsx(vsx, fp_load_ckpt));
+	FAIL_IF(show_vmx_ckpt(child, vmx));
+	FAIL_IF(validate_vmx(vmx, fp_load_ckpt));
+	memset(vsx, 0, sizeof(vsx));
+	memset(vmx, 0, sizeof(vmx));
+
+	load_vsx_vmx(fp_load_ckpt_new, vsx, vmx);
+
+	FAIL_IF(write_vsx_ckpt(child, vsx));
+	FAIL_IF(write_vmx_ckpt(child, vmx));
+	pptr[0] = 1;
+	FAIL_IF(stop_trace(child));
+	return TEST_PASS;
+}
+
+int ptrace_tm_vsx(void)
+{
+	pid_t pid;
+	int ret, status, i;
+
+	SKIP_IF_MSG(!have_htm(), "Don't have transactional memory");
+	SKIP_IF_MSG(htm_is_synthetic(), "Transactional memory is synthetic");
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
+
+	for (i = 0; i < 128; i++) {
+		fp_load[i] = 1 + rand();
+		fp_load_ckpt[i] = 1 + 2 * rand();
+		fp_load_ckpt_new[i] = 1 + 3 * rand();
+	}
+
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		tm_vsx();
+
+	if (pid) {
+		pptr = (unsigned long *)shmat(shm_id, NULL, 0);
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+
+		ret = trace_tm_vsx(pid);
+		if (ret) {
+			kill(pid, SIGKILL);
+			shmdt((void *)pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		shmdt((void *)pptr);
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_tm_vsx, "ptrace_tm_vsx");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c
new file mode 100644
index 000000000000..11bc624574fe
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.c
@@ -0,0 +1,115 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Ptrace test for VMX/VSX registers
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#include "ptrace.h"
+#include "ptrace-vsx.h"
+
+/* Tracer and Tracee Shared Data */
+int shm_id;
+int *cptr, *pptr;
+
+unsigned long fp_load[VEC_MAX];
+unsigned long fp_load_new[VEC_MAX];
+unsigned long fp_store[VEC_MAX];
+
+void vsx(void)
+{
+	int ret;
+
+	cptr = (int *)shmat(shm_id, NULL, 0);
+	loadvsx(fp_load, 0);
+	cptr[1] = 1;
+
+	while (!cptr[0])
+		asm volatile("" : : : "memory");
+	shmdt((void *) cptr);
+
+	storevsx(fp_store, 0);
+	ret = compare_vsx_vmx(fp_store, fp_load_new);
+	if (ret)
+		exit(1);
+	exit(0);
+}
+
+int trace_vsx(pid_t child)
+{
+	unsigned long vsx[VSX_MAX];
+	unsigned long vmx[VMX_MAX + 2][2];
+
+	FAIL_IF(start_trace(child));
+	FAIL_IF(show_vsx(child, vsx));
+	FAIL_IF(validate_vsx(vsx, fp_load));
+	FAIL_IF(show_vmx(child, vmx));
+	FAIL_IF(validate_vmx(vmx, fp_load));
+
+	memset(vsx, 0, sizeof(vsx));
+	memset(vmx, 0, sizeof(vmx));
+	load_vsx_vmx(fp_load_new, vsx, vmx);
+
+	FAIL_IF(write_vsx(child, vsx));
+	FAIL_IF(write_vmx(child, vmx));
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+int ptrace_vsx(void)
+{
+	pid_t pid;
+	int ret, status, i;
+
+	SKIP_IF_MSG(!have_hwcap(PPC_FEATURE_HAS_VSX), "Don't have VSX");
+
+	shm_id = shmget(IPC_PRIVATE, sizeof(int) * 2, 0777|IPC_CREAT);
+
+	for (i = 0; i < VEC_MAX; i++)
+		fp_load[i] = i + rand();
+
+	for (i = 0; i < VEC_MAX; i++)
+		fp_load_new[i] = i + 2 * rand();
+
+	pid = fork();
+	if (pid < 0) {
+		perror("fork() failed");
+		return TEST_FAIL;
+	}
+
+	if (pid == 0)
+		vsx();
+
+	if (pid) {
+		pptr = (int *)shmat(shm_id, NULL, 0);
+		while (!pptr[1])
+			asm volatile("" : : : "memory");
+
+		ret = trace_vsx(pid);
+		if (ret) {
+			kill(pid, SIGTERM);
+			shmdt((void *)pptr);
+			shmctl(shm_id, IPC_RMID, NULL);
+			return TEST_FAIL;
+		}
+
+		pptr[0] = 1;
+		shmdt((void *)pptr);
+
+		ret = wait(&status);
+		shmctl(shm_id, IPC_RMID, NULL);
+		if (ret != pid) {
+			printf("Child's exit status not captured\n");
+			return TEST_FAIL;
+		}
+
+		return (WIFEXITED(status) && WEXITSTATUS(status)) ? TEST_FAIL :
+			TEST_PASS;
+	}
+	return TEST_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(ptrace_vsx, "ptrace_vsx");
+}
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h
new file mode 100644
index 000000000000..6633485210b6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace-vsx.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+#define VEC_MAX 128
+#define VSX_MAX 32
+#define VMX_MAX 32
+
+/*
+ * unsigned long vsx[32]
+ * unsigned long load[128]
+ */
+int validate_vsx(unsigned long *vsx, unsigned long *load)
+{
+	int i;
+
+	for (i = 0; i < VSX_MAX; i++) {
+		if (vsx[i] != load[2 * i + 1]) {
+			printf("vsx[%d]: %lx load[%d] %lx\n",
+					i, vsx[i], 2 * i + 1, load[2 * i + 1]);
+			return TEST_FAIL;
+		}
+	}
+	return TEST_PASS;
+}
+
+/*
+ * unsigned long vmx[32][2]
+ * unsigned long load[128]
+ */
+int validate_vmx(unsigned long vmx[][2], unsigned long *load)
+{
+	int i;
+
+	for (i = 0; i < VMX_MAX; i++) {
+		#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+		if ((vmx[i][0] != load[64 + 2 * i]) ||
+				(vmx[i][1] != load[65 + 2 * i])) {
+			printf("vmx[%d][0]: %lx load[%d] %lx\n",
+					i, vmx[i][0], 64 + 2 * i,
+					load[64 + 2 * i]);
+			printf("vmx[%d][1]: %lx load[%d] %lx\n",
+					i, vmx[i][1], 65 + 2 * i,
+					load[65 + 2 * i]);
+			return TEST_FAIL;
+		}
+		#else  /*
+			* In LE each value pair is stored in an
+			* alternate manner.
+			*/
+		if ((vmx[i][0] != load[65 + 2 * i]) ||
+				(vmx[i][1] != load[64 + 2 * i])) {
+			printf("vmx[%d][0]: %lx load[%d] %lx\n",
+					i, vmx[i][0], 65 + 2 * i,
+					load[65 + 2 * i]);
+			printf("vmx[%d][1]: %lx load[%d] %lx\n",
+					i, vmx[i][1], 64 + 2 * i,
+					load[64 + 2 * i]);
+			return TEST_FAIL;
+		}
+		#endif
+	}
+	return TEST_PASS;
+}
+
+/*
+ * unsigned long store[128]
+ * unsigned long load[128]
+ */
+int compare_vsx_vmx(unsigned long *store, unsigned long *load)
+{
+	int i;
+
+	for (i = 0; i < VSX_MAX; i++) {
+		if (store[1 + 2 * i] != load[1 + 2 * i]) {
+			printf("store[%d]: %lx load[%d] %lx\n",
+					1 + 2 * i, store[i],
+					1 + 2 * i, load[i]);
+			return TEST_FAIL;
+		}
+	}
+
+	#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	for (i = 64; i < VEC_MAX; i++) {
+		if (store[i] != load[i]) {
+			printf("store[%d]: %lx load[%d] %lx\n",
+					i, store[i], i, load[i]);
+			return TEST_FAIL;
+		}
+	}
+	#else	/* In LE each value pair is stored in an alternate manner */
+	for (i = 64; i < VEC_MAX; i++) {
+		if (!(i % 2) && (store[i] != load[i+1])) {
+			printf("store[%d]: %lx load[%d] %lx\n",
+					i, store[i], i+1, load[i+1]);
+			return TEST_FAIL;
+		}
+		if ((i % 2) && (store[i] != load[i-1])) {
+			printf("here store[%d]: %lx load[%d] %lx\n",
+					i, store[i], i-1, load[i-1]);
+			return TEST_FAIL;
+		}
+	}
+	#endif
+	return TEST_PASS;
+}
+
+void load_vsx_vmx(unsigned long *load, unsigned long *vsx,
+		unsigned long vmx[][2])
+{
+	int i;
+
+	for (i = 0; i < VSX_MAX; i++)
+		vsx[i] = load[1 + 2 * i];
+
+	for (i = 0; i < VMX_MAX; i++) {
+		vmx[i][0] = load[64 + 2 * i];
+		vmx[i][1] = load[65 + 2 * i];
+	}
+}
+
+void loadvsx(void *p, int tmp);
+void storevsx(void *p, int tmp);
diff --git a/tools/testing/selftests/powerpc/ptrace/ptrace.h b/tools/testing/selftests/powerpc/ptrace/ptrace.h
new file mode 100644
index 000000000000..04788e5fc504
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/ptrace.h
@@ -0,0 +1,809 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Ptrace interface test helper functions
+ *
+ * Copyright (C) 2015 Anshuman Khandual, IBM Corporation.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <inttypes.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <malloc.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/ptrace.h>
+#include <sys/ioctl.h>
+#include <sys/uio.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/signal.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#include <sys/user.h>
+#include <sys/syscall.h>
+#include <linux/elf.h>
+#include <linux/types.h>
+#include <linux/auxvec.h>
+#include "reg.h"
+#include "utils.h"
+
+#define TEST_PASS 0
+#define TEST_FAIL 1
+
+struct fpr_regs {
+	__u64 fpr[32];
+	__u64 fpscr;
+};
+
+struct tm_spr_regs {
+	unsigned long tm_tfhar;
+	unsigned long tm_texasr;
+	unsigned long tm_tfiar;
+};
+
+#ifndef NT_PPC_TAR
+#define NT_PPC_TAR	0x103
+#define NT_PPC_PPR	0x104
+#define NT_PPC_DSCR	0x105
+#define NT_PPC_EBB	0x106
+#define NT_PPC_PMU	0x107
+#define NT_PPC_TM_CGPR	0x108
+#define NT_PPC_TM_CFPR	0x109
+#define NT_PPC_TM_CVMX	0x10a
+#define NT_PPC_TM_CVSX	0x10b
+#define NT_PPC_TM_SPR	0x10c
+#define NT_PPC_TM_CTAR	0x10d
+#define NT_PPC_TM_CPPR	0x10e
+#define NT_PPC_TM_CDSCR	0x10f
+#endif
+
+/* Basic ptrace operations */
+int start_trace(pid_t child)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_ATTACH, child, NULL, NULL);
+	if (ret) {
+		perror("ptrace(PTRACE_ATTACH) failed");
+		return TEST_FAIL;
+	}
+	ret = waitpid(child, NULL, 0);
+	if (ret != child) {
+		perror("waitpid() failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int stop_trace(pid_t child)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_DETACH, child, NULL, NULL);
+	if (ret) {
+		perror("ptrace(PTRACE_DETACH) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int cont_trace(pid_t child)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_CONT, child, NULL, NULL);
+	if (ret) {
+		perror("ptrace(PTRACE_CONT) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int ptrace_read_regs(pid_t child, unsigned long type, unsigned long regs[],
+		     int n)
+{
+	struct iovec iov;
+	long ret;
+
+	FAIL_IF(start_trace(child));
+
+	iov.iov_base = regs;
+	iov.iov_len = n * sizeof(unsigned long);
+
+	ret = ptrace(PTRACE_GETREGSET, child, type, &iov);
+	if (ret)
+		return ret;
+
+	FAIL_IF(stop_trace(child));
+
+	return TEST_PASS;
+}
+
+long ptrace_write_regs(pid_t child, unsigned long type, unsigned long regs[],
+		       int n)
+{
+	struct iovec iov;
+	long ret;
+
+	FAIL_IF(start_trace(child));
+
+	iov.iov_base = regs;
+	iov.iov_len = n * sizeof(unsigned long);
+
+	ret = ptrace(PTRACE_SETREGSET, child, type, &iov);
+
+	FAIL_IF(stop_trace(child));
+
+	return ret;
+}
+
+/* TAR, PPR, DSCR */
+int show_tar_registers(pid_t child, unsigned long *out)
+{
+	struct iovec iov;
+	unsigned long *reg;
+	int ret;
+
+	reg = malloc(sizeof(unsigned long));
+	if (!reg) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+	iov.iov_base = (u64 *) reg;
+	iov.iov_len = sizeof(unsigned long);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TAR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[0] = *reg;
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_PPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[1] = *reg;
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_DSCR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[2] = *reg;
+
+	free(reg);
+	return TEST_PASS;
+fail:
+	free(reg);
+	return TEST_FAIL;
+}
+
+int write_tar_registers(pid_t child, unsigned long tar,
+		unsigned long ppr, unsigned long dscr)
+{
+	struct iovec iov;
+	unsigned long *reg;
+	int ret;
+
+	reg = malloc(sizeof(unsigned long));
+	if (!reg) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	iov.iov_base = (u64 *) reg;
+	iov.iov_len = sizeof(unsigned long);
+
+	*reg = tar;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TAR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_SETREGSET) failed");
+		goto fail;
+	}
+
+	*reg = ppr;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_PPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_SETREGSET) failed");
+		goto fail;
+	}
+
+	*reg = dscr;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_DSCR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_SETREGSET) failed");
+		goto fail;
+	}
+
+	free(reg);
+	return TEST_PASS;
+fail:
+	free(reg);
+	return TEST_FAIL;
+}
+
+int show_tm_checkpointed_state(pid_t child, unsigned long *out)
+{
+	struct iovec iov;
+	unsigned long *reg;
+	int ret;
+
+	reg = malloc(sizeof(unsigned long));
+	if (!reg) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	iov.iov_base = (u64 *) reg;
+	iov.iov_len = sizeof(unsigned long);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CTAR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[0] = *reg;
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CPPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[1] = *reg;
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CDSCR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+	if (out)
+		out[2] = *reg;
+
+	free(reg);
+	return TEST_PASS;
+
+fail:
+	free(reg);
+	return TEST_FAIL;
+}
+
+int write_ckpt_tar_registers(pid_t child, unsigned long tar,
+		unsigned long ppr, unsigned long dscr)
+{
+	struct iovec iov;
+	unsigned long *reg;
+	int ret;
+
+	reg = malloc(sizeof(unsigned long));
+	if (!reg) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	iov.iov_base = (u64 *) reg;
+	iov.iov_len = sizeof(unsigned long);
+
+	*reg = tar;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CTAR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+
+	*reg = ppr;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CPPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+
+	*reg = dscr;
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CDSCR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		goto fail;
+	}
+
+	free(reg);
+	return TEST_PASS;
+fail:
+	free(reg);
+	return TEST_FAIL;
+}
+
+/* FPR */
+int show_fpr(pid_t child, __u64 *fpr)
+{
+	struct fpr_regs *regs;
+	int ret, i;
+
+	regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
+	ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	if (fpr) {
+		for (i = 0; i < 32; i++)
+			fpr[i] = regs->fpr[i];
+	}
+	return TEST_PASS;
+}
+
+int write_fpr(pid_t child, __u64 val)
+{
+	struct fpr_regs *regs;
+	int ret, i;
+
+	regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
+	ret = ptrace(PTRACE_GETFPREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	for (i = 0; i < 32; i++)
+		regs->fpr[i] = val;
+
+	ret = ptrace(PTRACE_SETFPREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int show_ckpt_fpr(pid_t child, __u64 *fpr)
+{
+	struct fpr_regs *regs;
+	struct iovec iov;
+	int ret, i;
+
+	regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
+	iov.iov_base = regs;
+	iov.iov_len = sizeof(struct fpr_regs);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	if (fpr) {
+		for (i = 0; i < 32; i++)
+			fpr[i] = regs->fpr[i];
+	}
+
+	return TEST_PASS;
+}
+
+int write_ckpt_fpr(pid_t child, unsigned long val)
+{
+	struct fpr_regs *regs;
+	struct iovec iov;
+	int ret, i;
+
+	regs = (struct fpr_regs *) malloc(sizeof(struct fpr_regs));
+	iov.iov_base = regs;
+	iov.iov_len = sizeof(struct fpr_regs);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CFPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	for (i = 0; i < 32; i++)
+		regs->fpr[i] = val;
+
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CFPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+/* GPR */
+int show_gpr(pid_t child, unsigned long *gpr)
+{
+	struct pt_regs *regs;
+	int ret, i;
+
+	regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
+	if (!regs) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	if (gpr) {
+		for (i = 14; i < 32; i++)
+			gpr[i-14] = regs->gpr[i];
+	}
+
+	return TEST_PASS;
+}
+
+long sys_ptrace(enum __ptrace_request request, pid_t pid, unsigned long addr, unsigned long data)
+{
+	return syscall(__NR_ptrace, request, pid, (void *)addr, data);
+}
+
+// 33 because of FPSCR
+#define PT_NUM_FPRS	(33 * (sizeof(__u64) / sizeof(unsigned long)))
+
+__u64 *peek_fprs(pid_t child)
+{
+	unsigned long *fprs, *p, addr;
+	long ret;
+	int i;
+
+	fprs = malloc(sizeof(unsigned long) * PT_NUM_FPRS);
+	if (!fprs) {
+		perror("malloc() failed");
+		return NULL;
+	}
+
+	for (i = 0, p = fprs; i < PT_NUM_FPRS; i++, p++) {
+		addr = sizeof(unsigned long) * (PT_FPR0 + i);
+		ret = sys_ptrace(PTRACE_PEEKUSER, child, addr, (unsigned long)p);
+		if (ret) {
+			perror("ptrace(PTRACE_PEEKUSR) failed");
+			return NULL;
+		}
+	}
+
+	addr = sizeof(unsigned long) * (PT_FPR0 + i);
+	ret = sys_ptrace(PTRACE_PEEKUSER, child, addr, (unsigned long)&addr);
+	if (!ret) {
+		printf("ptrace(PTRACE_PEEKUSR) succeeded unexpectedly!\n");
+		return NULL;
+	}
+
+	return (__u64 *)fprs;
+}
+
+int poke_fprs(pid_t child, unsigned long *fprs)
+{
+	unsigned long *p, addr;
+	long ret;
+	int i;
+
+	for (i = 0, p = fprs; i < PT_NUM_FPRS; i++, p++) {
+		addr = sizeof(unsigned long) * (PT_FPR0 + i);
+		ret = sys_ptrace(PTRACE_POKEUSER, child, addr, *p);
+		if (ret) {
+			perror("ptrace(PTRACE_POKEUSR) failed");
+			return -1;
+		}
+	}
+
+	addr = sizeof(unsigned long) * (PT_FPR0 + i);
+	ret = sys_ptrace(PTRACE_POKEUSER, child, addr, addr);
+	if (!ret) {
+		printf("ptrace(PTRACE_POKEUSR) succeeded unexpectedly!\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+int write_gpr(pid_t child, unsigned long val)
+{
+	struct pt_regs *regs;
+	int i, ret;
+
+	regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
+	if (!regs) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	ret = ptrace(PTRACE_GETREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	for (i = 14; i < 32; i++)
+		regs->gpr[i] = val;
+
+	ret = ptrace(PTRACE_SETREGS, child, NULL, regs);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int show_ckpt_gpr(pid_t child, unsigned long *gpr)
+{
+	struct pt_regs *regs;
+	struct iovec iov;
+	int ret, i;
+
+	regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
+	if (!regs) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(struct pt_regs);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	if (gpr) {
+		for (i = 14; i < 32; i++)
+			gpr[i-14] = regs->gpr[i];
+	}
+
+	return TEST_PASS;
+}
+
+int write_ckpt_gpr(pid_t child, unsigned long val)
+{
+	struct pt_regs *regs;
+	struct iovec iov;
+	int ret, i;
+
+	regs = (struct pt_regs *) malloc(sizeof(struct pt_regs));
+	if (!regs) {
+		perror("malloc() failed\n");
+		return TEST_FAIL;
+	}
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(struct pt_regs);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CGPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	for (i = 14; i < 32; i++)
+		regs->gpr[i] = val;
+
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CGPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+/* VMX */
+int show_vmx(pid_t child, unsigned long vmx[][2])
+{
+	int ret;
+
+	ret = ptrace(PTRACE_GETVRREGS, child, 0, vmx);
+	if (ret) {
+		perror("ptrace(PTRACE_GETVRREGS) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int show_vmx_ckpt(pid_t child, unsigned long vmx[][2])
+{
+	unsigned long regs[34][2];
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(regs);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CVMX, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET, NT_PPC_TM_CVMX) failed");
+		return TEST_FAIL;
+	}
+	memcpy(vmx, regs, sizeof(regs));
+	return TEST_PASS;
+}
+
+
+int write_vmx(pid_t child, unsigned long vmx[][2])
+{
+	int ret;
+
+	ret = ptrace(PTRACE_SETVRREGS, child, 0, vmx);
+	if (ret) {
+		perror("ptrace(PTRACE_SETVRREGS) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int write_vmx_ckpt(pid_t child, unsigned long vmx[][2])
+{
+	unsigned long regs[34][2];
+	struct iovec iov;
+	int ret;
+
+	memcpy(regs, vmx, sizeof(regs));
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(regs);
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CVMX, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_SETREGSET, NT_PPC_TM_CVMX) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+/* VSX */
+int show_vsx(pid_t child, unsigned long *vsx)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_GETVSRREGS, child, 0, vsx);
+	if (ret) {
+		perror("ptrace(PTRACE_GETVSRREGS) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int show_vsx_ckpt(pid_t child, unsigned long *vsx)
+{
+	unsigned long regs[32];
+	struct iovec iov;
+	int ret;
+
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(regs);
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_CVSX, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET, NT_PPC_TM_CVSX) failed");
+		return TEST_FAIL;
+	}
+	memcpy(vsx, regs, sizeof(regs));
+	return TEST_PASS;
+}
+
+int write_vsx(pid_t child, unsigned long *vsx)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_SETVSRREGS, child, 0, vsx);
+	if (ret) {
+		perror("ptrace(PTRACE_SETVSRREGS) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+int write_vsx_ckpt(pid_t child, unsigned long *vsx)
+{
+	unsigned long regs[32];
+	struct iovec iov;
+	int ret;
+
+	memcpy(regs, vsx, sizeof(regs));
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(regs);
+	ret = ptrace(PTRACE_SETREGSET, child, NT_PPC_TM_CVSX, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_SETREGSET, NT_PPC_TM_CVSX) failed");
+		return TEST_FAIL;
+	}
+	return TEST_PASS;
+}
+
+/* TM SPR */
+int show_tm_spr(pid_t child, struct tm_spr_regs *out)
+{
+	struct tm_spr_regs *regs;
+	struct iovec iov;
+	int ret;
+
+	regs = (struct tm_spr_regs *) malloc(sizeof(struct tm_spr_regs));
+	if (!regs) {
+		perror("malloc() failed");
+		return TEST_FAIL;
+	}
+
+	iov.iov_base = (u64 *) regs;
+	iov.iov_len = sizeof(struct tm_spr_regs);
+
+	ret = ptrace(PTRACE_GETREGSET, child, NT_PPC_TM_SPR, &iov);
+	if (ret) {
+		perror("ptrace(PTRACE_GETREGSET) failed");
+		return TEST_FAIL;
+	}
+
+	if (out)
+		memcpy(out, regs, sizeof(struct tm_spr_regs));
+
+	return TEST_PASS;
+}
+
+
+
+/* Analyse TEXASR after TM failure */
+inline unsigned long get_tfiar(void)
+{
+	return mfspr(SPRN_TFIAR);
+}
+
+void analyse_texasr(unsigned long texasr)
+{
+	printf("TEXASR: %16lx\t", texasr);
+
+	if (texasr & TEXASR_FP)
+		printf("TEXASR_FP  ");
+
+	if (texasr & TEXASR_DA)
+		printf("TEXASR_DA  ");
+
+	if (texasr & TEXASR_NO)
+		printf("TEXASR_NO  ");
+
+	if (texasr & TEXASR_FO)
+		printf("TEXASR_FO  ");
+
+	if (texasr & TEXASR_SIC)
+		printf("TEXASR_SIC  ");
+
+	if (texasr & TEXASR_NTC)
+		printf("TEXASR_NTC  ");
+
+	if (texasr & TEXASR_TC)
+		printf("TEXASR_TC  ");
+
+	if (texasr & TEXASR_TIC)
+		printf("TEXASR_TIC  ");
+
+	if (texasr & TEXASR_IC)
+		printf("TEXASR_IC  ");
+
+	if (texasr & TEXASR_IFC)
+		printf("TEXASR_IFC  ");
+
+	if (texasr & TEXASR_ABT)
+		printf("TEXASR_ABT  ");
+
+	if (texasr & TEXASR_SPD)
+		printf("TEXASR_SPD  ");
+
+	if (texasr & TEXASR_HV)
+		printf("TEXASR_HV  ");
+
+	if (texasr & TEXASR_PR)
+		printf("TEXASR_PR  ");
+
+	if (texasr & TEXASR_FS)
+		printf("TEXASR_FS  ");
+
+	if (texasr & TEXASR_TE)
+		printf("TEXASR_TE  ");
+
+	if (texasr & TEXASR_ROT)
+		printf("TEXASR_ROT  ");
+
+	printf("TFIAR :%lx\n", get_tfiar());
+}
+
+void store_gpr(unsigned long *addr);
diff --git a/tools/testing/selftests/powerpc/ptrace/settings b/tools/testing/selftests/powerpc/ptrace/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/ptrace/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/scripts/hmi.sh b/tools/testing/selftests/powerpc/scripts/hmi.sh
new file mode 100755
index 000000000000..bcc7b6b65009
--- /dev/null
+++ b/tools/testing/selftests/powerpc/scripts/hmi.sh
@@ -0,0 +1,82 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright 2015, Daniel Axtens, IBM Corporation
+#
+
+
+# do we have ./getscom, ./putscom?
+if [ -x ./getscom ] && [ -x ./putscom ]; then
+	GETSCOM=./getscom
+	PUTSCOM=./putscom
+elif which getscom > /dev/null; then
+	GETSCOM=$(which getscom)
+	PUTSCOM=$(which putscom)
+else
+	cat <<EOF
+Can't find getscom/putscom in . or \$PATH.
+See https://github.com/open-power/skiboot.
+The tool is in external/xscom-utils
+EOF
+	exit 1
+fi
+
+# We will get 8 HMI events per injection
+# todo: deal with things being offline
+expected_hmis=8
+COUNT_HMIS() {
+    dmesg | grep -c 'Harmless Hypervisor Maintenance interrupt'
+}
+
+# massively expand snooze delay, allowing injection on all cores
+ppc64_cpu --smt-snooze-delay=1000000000
+
+# when we exit, restore it
+trap "ppc64_cpu --smt-snooze-delay=100" 0 1
+
+# for each chip+core combination
+# todo - less fragile parsing
+grep -E -o 'OCC: Chip [0-9a-f]+ Core [0-9a-f]' < /sys/firmware/opal/msglog |
+while read chipcore; do
+	chip=$(echo "$chipcore"|awk '{print $3}')
+	core=$(echo "$chipcore"|awk '{print $5}')
+	fir="0x1${core}013100"
+
+	# verify that Core FIR is zero as expected
+	if [ "$($GETSCOM -c 0x${chip} $fir)" != 0 ]; then
+		echo "FIR was not zero before injection for chip $chip, core $core. Aborting!"
+		echo "Result of $GETSCOM -c 0x${chip} $fir:"
+		$GETSCOM -c 0x${chip} $fir
+		echo "If you get a -5 error, the core may be in idle state. Try stress-ng."
+		echo "Otherwise, try $PUTSCOM -c 0x${chip} $fir 0"
+		exit 1
+	fi
+
+	# keep track of the number of HMIs handled
+	old_hmis=$(COUNT_HMIS)
+
+	# do injection, adding a marker to dmesg for clarity
+	echo "Injecting HMI on core $core, chip $chip" | tee /dev/kmsg
+	# inject a RegFile recoverable error
+	if ! $PUTSCOM -c 0x${chip} $fir 2000000000000000 > /dev/null; then
+		echo "Error injecting. Aborting!"
+		exit 1
+	fi
+
+	# now we want to wait for all the HMIs to be processed
+	# we expect one per thread on the core
+	i=0;
+	new_hmis=$(COUNT_HMIS)
+	while [ $new_hmis -lt $((old_hmis + expected_hmis)) ] && [ $i -lt 12 ]; do
+	    echo "Seen $((new_hmis - old_hmis)) HMI(s) out of $expected_hmis expected, sleeping"
+	    sleep 5;
+	    i=$((i + 1))
+	    new_hmis=$(COUNT_HMIS)
+	done
+	if [ $i = 12 ]; then
+	    echo "Haven't seen expected $expected_hmis recoveries after 1 min. Aborting."
+	    exit 1
+	fi
+	echo "Processed $expected_hmis events; presumed success. Check dmesg."
+	echo ""
+done
diff --git a/tools/testing/selftests/powerpc/scripts/settings b/tools/testing/selftests/powerpc/scripts/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/scripts/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/security/.gitignore b/tools/testing/selftests/powerpc/security/.gitignore
new file mode 100644
index 000000000000..9357b186b13c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/.gitignore
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
+rfi_flush
+entry_flush
+spectre_v2
+uaccess_flush
diff --git a/tools/testing/selftests/powerpc/security/Makefile b/tools/testing/selftests/powerpc/security/Makefile
new file mode 100644
index 000000000000..33286039724a
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/Makefile
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+TEST_GEN_PROGS := rfi_flush entry_flush uaccess_flush spectre_v2
+TEST_PROGS := mitigation-patching.sh
+
+top_srcdir = ../../../../..
+
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += $(KHDR_INCLUDES)
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
+
+$(OUTPUT)/spectre_v2: CFLAGS += -m64
+$(OUTPUT)/spectre_v2: ../pmu/event.c branch_loops.S
+$(OUTPUT)/rfi_flush: flush_utils.c
+$(OUTPUT)/entry_flush: flush_utils.c
+$(OUTPUT)/uaccess_flush: flush_utils.c
diff --git a/tools/testing/selftests/powerpc/security/branch_loops.S b/tools/testing/selftests/powerpc/security/branch_loops.S
new file mode 100644
index 000000000000..22e9204e3421
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/branch_loops.S
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2019, Michael Ellerman, IBM Corp.
+ */
+
+#include <ppc-asm.h>
+
+	.data
+
+jump_table:
+	.long	0x0
+	.long	(.Lstate_1 - .Lstate_0)
+	.long	(.Lstate_2 - .Lstate_0)
+	.long	(.Lstate_3 - .Lstate_0)
+	.long	(.Lstate_4 - .Lstate_0)
+	.long	(.Lstate_5 - .Lstate_0)
+	.long	(.Lstate_6 - .Lstate_0)
+	.long	(.Lstate_7 - .Lstate_0)
+
+	.text
+
+#define ITER_SHIFT	31
+
+.macro state number
+	.balign	32
+.Lstate_\number:
+	.if	\number==7
+	li	r3, 0
+	.else
+	li	r3, \number+1
+	.endif
+	b	.Lloop
+.endm
+
+FUNC_START(pattern_cache_loop)
+	li	r3, 0
+	li	r4, 1
+	sldi	r4, r4, ITER_SHIFT
+
+.Lloop:	cmpdi	r4, 0
+	beqlr
+
+	addi	r4, r4, -1
+
+	ld	r6, jump_table@got(%r2)
+	sldi	r5, r3, 2
+	lwax	r6, r5, r6
+	ld	r7, .Lstate_0@got(%r2)
+	add	r6, r6, r7
+	mtctr	r6
+	bctr
+
+	state	0
+	state	1
+	state	2
+	state	3
+	state	4
+	state	5
+	state	6
+	state	7
+
+FUNC_END(pattern_cache_loop)
+
+
+FUNC_START(indirect_branch_loop)
+	li	r3, 1
+	sldi	r3, r3, ITER_SHIFT
+
+1:	cmpdi	r3, 0
+	beqlr
+
+	addi	r3, r3, -1
+
+	ld	r4, 2f@got(%r2)
+	mtctr	r4
+	bctr
+
+	.balign 32
+2:	b	1b
+
+FUNC_END(indirect_branch_loop)
diff --git a/tools/testing/selftests/powerpc/security/entry_flush.c b/tools/testing/selftests/powerpc/security/entry_flush.c
new file mode 100644
index 000000000000..e01c573deadd
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/entry_flush.c
@@ -0,0 +1,139 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2018 IBM Corporation.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <malloc.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "utils.h"
+#include "flush_utils.h"
+
+int entry_flush_test(void)
+{
+	char *p;
+	int repetitions = 10;
+	int fd, passes = 0, iter, rc = 0;
+	struct perf_event_read v;
+	__u64 l1d_misses_total = 0;
+	unsigned long iterations = 100000, zero_size = 24 * 1024;
+	unsigned long l1d_misses_expected;
+	int rfi_flush_orig;
+	int entry_flush, entry_flush_orig;
+
+	SKIP_IF(geteuid() != 0);
+
+	// The PMU event we use only works on Power7 or later
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	if (read_debugfs_int("powerpc/rfi_flush", &rfi_flush_orig) < 0) {
+		perror("Unable to read powerpc/rfi_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (read_debugfs_int("powerpc/entry_flush", &entry_flush_orig) < 0) {
+		perror("Unable to read powerpc/entry_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (rfi_flush_orig != 0) {
+		if (write_debugfs_int("powerpc/rfi_flush", 0) < 0) {
+			perror("error writing to powerpc/rfi_flush debugfs file");
+			FAIL_IF(1);
+		}
+	}
+
+	entry_flush = entry_flush_orig;
+
+	fd = perf_event_open_counter(PERF_TYPE_HW_CACHE, PERF_L1D_READ_MISS_CONFIG, -1);
+	FAIL_IF(fd < 0);
+
+	p = (char *)memalign(zero_size, CACHELINE_SIZE);
+
+	FAIL_IF(perf_event_enable(fd));
+
+	// disable L1 prefetching
+	set_dscr(1);
+
+	iter = repetitions;
+
+	/*
+	 * We expect to see l1d miss for each cacheline access when entry_flush
+	 * is set. Allow a small variation on this.
+	 */
+	l1d_misses_expected = iterations * (zero_size / CACHELINE_SIZE - 2);
+
+again:
+	FAIL_IF(perf_event_reset(fd));
+
+	syscall_loop(p, iterations, zero_size);
+
+	FAIL_IF(read(fd, &v, sizeof(v)) != sizeof(v));
+
+	if (entry_flush && v.l1d_misses >= l1d_misses_expected)
+		passes++;
+	else if (!entry_flush && v.l1d_misses < (l1d_misses_expected / 2))
+		passes++;
+
+	l1d_misses_total += v.l1d_misses;
+
+	while (--iter)
+		goto again;
+
+	if (passes < repetitions) {
+		printf("FAIL (L1D misses with entry_flush=%d: %llu %c %lu) [%d/%d failures]\n",
+		       entry_flush, l1d_misses_total, entry_flush ? '<' : '>',
+		       entry_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       repetitions - passes, repetitions);
+		rc = 1;
+	} else {
+		printf("PASS (L1D misses with entry_flush=%d: %llu %c %lu) [%d/%d pass]\n",
+		       entry_flush, l1d_misses_total, entry_flush ? '>' : '<',
+		       entry_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       passes, repetitions);
+	}
+
+	if (entry_flush == entry_flush_orig) {
+		entry_flush = !entry_flush_orig;
+		if (write_debugfs_int("powerpc/entry_flush", entry_flush) < 0) {
+			perror("error writing to powerpc/entry_flush debugfs file");
+			return 1;
+		}
+		iter = repetitions;
+		l1d_misses_total = 0;
+		passes = 0;
+		goto again;
+	}
+
+	perf_event_disable(fd);
+	close(fd);
+
+	set_dscr(0);
+
+	if (write_debugfs_int("powerpc/rfi_flush", rfi_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/rfi_flush debugfs file");
+		return 1;
+	}
+
+	if (write_debugfs_int("powerpc/entry_flush", entry_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/entry_flush debugfs file");
+		return 1;
+	}
+
+	return rc;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(entry_flush_test, "entry_flush_test");
+}
diff --git a/tools/testing/selftests/powerpc/security/flush_utils.c b/tools/testing/selftests/powerpc/security/flush_utils.c
new file mode 100644
index 000000000000..9c5c00e04f63
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/flush_utils.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2018 IBM Corporation.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/utsname.h>
+#include "reg.h"
+#include "utils.h"
+#include "flush_utils.h"
+
+static inline __u64 load(void *addr)
+{
+	__u64 tmp;
+
+	asm volatile("ld %0,0(%1)" : "=r"(tmp) : "b"(addr));
+
+	return tmp;
+}
+
+void syscall_loop(char *p, unsigned long iterations,
+		  unsigned long zero_size)
+{
+	for (unsigned long i = 0; i < iterations; i++) {
+		for (unsigned long j = 0; j < zero_size; j += CACHELINE_SIZE)
+			load(p + j);
+		getppid();
+	}
+}
+
+void syscall_loop_uaccess(char *p, unsigned long iterations,
+			  unsigned long zero_size)
+{
+	struct utsname utsname;
+
+	for (unsigned long i = 0; i < iterations; i++) {
+		for (unsigned long j = 0; j < zero_size; j += CACHELINE_SIZE)
+			load(p + j);
+		uname(&utsname);
+	}
+}
+
+static void sigill_handler(int signr, siginfo_t *info, void *unused)
+{
+	static int warned;
+	ucontext_t *ctx = (ucontext_t *)unused;
+	unsigned long *pc = &UCONTEXT_NIA(ctx);
+
+	/* mtspr 3,RS to check for move to DSCR below */
+	if ((*((unsigned int *)*pc) & 0xfc1fffff) == 0x7c0303a6) {
+		if (!warned++)
+			printf("WARNING: Skipping over dscr setup. Consider running 'ppc64_cpu --dscr=1' manually.\n");
+		*pc += 4;
+	} else {
+		printf("SIGILL at %p\n", pc);
+		abort();
+	}
+}
+
+void set_dscr(unsigned long val)
+{
+	static int init;
+	struct sigaction sa;
+
+	if (!init) {
+		memset(&sa, 0, sizeof(sa));
+		sa.sa_sigaction = sigill_handler;
+		sa.sa_flags = SA_SIGINFO;
+		if (sigaction(SIGILL, &sa, NULL))
+			perror("sigill_handler");
+		init = 1;
+	}
+
+	mtspr(SPRN_DSCR, val);
+}
diff --git a/tools/testing/selftests/powerpc/security/flush_utils.h b/tools/testing/selftests/powerpc/security/flush_utils.h
new file mode 100644
index 000000000000..e1e68281f7ac
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/flush_utils.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+/*
+ * Copyright 2018 IBM Corporation.
+ */
+
+#ifndef _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H
+#define _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H
+
+#define CACHELINE_SIZE 128
+
+#define PERF_L1D_READ_MISS_CONFIG	((PERF_COUNT_HW_CACHE_L1D) | 		\
+					(PERF_COUNT_HW_CACHE_OP_READ << 8) |	\
+					(PERF_COUNT_HW_CACHE_RESULT_MISS << 16))
+
+void syscall_loop(char *p, unsigned long iterations,
+		  unsigned long zero_size);
+
+void syscall_loop_uaccess(char *p, unsigned long iterations,
+			  unsigned long zero_size);
+
+void set_dscr(unsigned long val);
+
+#endif /* _SELFTESTS_POWERPC_SECURITY_FLUSH_UTILS_H */
diff --git a/tools/testing/selftests/powerpc/security/mitigation-patching.sh b/tools/testing/selftests/powerpc/security/mitigation-patching.sh
new file mode 100755
index 000000000000..9a4612e2e953
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/mitigation-patching.sh
@@ -0,0 +1,78 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+TIMEOUT=10
+
+function do_one
+{
+    local mitigation="$1"
+    local orig
+    local start
+    local now
+
+    orig=$(cat "$mitigation")
+
+    start=$(date +%s)
+    now=$start
+
+    while [[ $((now-start)) -lt "$TIMEOUT" ]]
+    do
+        echo 0 > "$mitigation"
+        echo 1 > "$mitigation"
+
+        now=$(date +%s)
+    done
+
+    echo "$orig" > "$mitigation"
+}
+
+rc=0
+cd /sys/kernel/debug/powerpc || rc=1
+if [[ "$rc" -ne 0 ]]; then
+    echo "Error: couldn't cd to /sys/kernel/debug/powerpc" >&2
+    exit 1
+fi
+
+tainted=$(cat /proc/sys/kernel/tainted)
+if [[ "$tainted" -ne 0 ]]; then
+    echo "Warning: kernel already tainted! ($tainted)" >&2
+fi
+
+mitigations="barrier_nospec stf_barrier count_cache_flush rfi_flush entry_flush uaccess_flush"
+
+for m in $mitigations
+do
+    if [[ -f /sys/kernel/debug/powerpc/$m ]]
+    then
+        do_one "$m" &
+    fi
+done
+
+echo "Spawned threads enabling/disabling mitigations ..."
+
+if stress-ng > /dev/null 2>&1; then
+    stress="stress-ng"
+elif stress > /dev/null 2>&1; then
+    stress="stress"
+else
+    stress=""
+fi
+
+if [[ -n "$stress" ]]; then
+    "$stress" -m "$(nproc)" -t "$TIMEOUT" &
+    echo "Spawned VM stressors ..."
+fi
+
+echo "Waiting for timeout ..."
+wait
+
+orig_tainted=$tainted
+tainted=$(cat /proc/sys/kernel/tainted)
+if [[ "$tainted" != "$orig_tainted" ]]; then
+    echo "Error: kernel newly tainted, before ($orig_tainted) after ($tainted)" >&2
+    exit 1
+fi
+
+echo "OK"
+exit 0
diff --git a/tools/testing/selftests/powerpc/security/rfi_flush.c b/tools/testing/selftests/powerpc/security/rfi_flush.c
new file mode 100644
index 000000000000..6bedc86443a6
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/rfi_flush.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2018 IBM Corporation.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <malloc.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "utils.h"
+#include "flush_utils.h"
+
+
+int rfi_flush_test(void)
+{
+	char *p;
+	int repetitions = 10;
+	int fd, passes = 0, iter, rc = 0;
+	struct perf_event_read v;
+	__u64 l1d_misses_total = 0;
+	unsigned long iterations = 100000, zero_size = 24 * 1024;
+	unsigned long l1d_misses_expected;
+	int rfi_flush_orig, rfi_flush;
+	int have_entry_flush, entry_flush_orig;
+
+	SKIP_IF(geteuid() != 0);
+
+	// The PMU event we use only works on Power7 or later
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	if (read_debugfs_int("powerpc/rfi_flush", &rfi_flush_orig) < 0) {
+		perror("Unable to read powerpc/rfi_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (read_debugfs_int("powerpc/entry_flush", &entry_flush_orig) < 0) {
+		have_entry_flush = 0;
+	} else {
+		have_entry_flush = 1;
+
+		if (entry_flush_orig != 0) {
+			if (write_debugfs_int("powerpc/entry_flush", 0) < 0) {
+				perror("error writing to powerpc/entry_flush debugfs file");
+				return 1;
+			}
+		}
+	}
+
+	rfi_flush = rfi_flush_orig;
+
+	fd = perf_event_open_counter(PERF_TYPE_HW_CACHE, PERF_L1D_READ_MISS_CONFIG, -1);
+	FAIL_IF(fd < 0);
+
+	p = (char *)memalign(zero_size, CACHELINE_SIZE);
+
+	FAIL_IF(perf_event_enable(fd));
+
+	// disable L1 prefetching
+	set_dscr(1);
+
+	iter = repetitions;
+
+	/*
+	 * We expect to see l1d miss for each cacheline access when rfi_flush
+	 * is set. Allow a small variation on this.
+	 */
+	l1d_misses_expected = iterations * (zero_size / CACHELINE_SIZE - 2);
+
+again:
+	FAIL_IF(perf_event_reset(fd));
+
+	syscall_loop(p, iterations, zero_size);
+
+	FAIL_IF(read(fd, &v, sizeof(v)) != sizeof(v));
+
+	if (rfi_flush && v.l1d_misses >= l1d_misses_expected)
+		passes++;
+	else if (!rfi_flush && v.l1d_misses < (l1d_misses_expected / 2))
+		passes++;
+
+	l1d_misses_total += v.l1d_misses;
+
+	while (--iter)
+		goto again;
+
+	if (passes < repetitions) {
+		printf("FAIL (L1D misses with rfi_flush=%d: %llu %c %lu) [%d/%d failures]\n",
+		       rfi_flush, l1d_misses_total, rfi_flush ? '<' : '>',
+		       rfi_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       repetitions - passes, repetitions);
+		rc = 1;
+	} else
+		printf("PASS (L1D misses with rfi_flush=%d: %llu %c %lu) [%d/%d pass]\n",
+		       rfi_flush, l1d_misses_total, rfi_flush ? '>' : '<',
+		       rfi_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       passes, repetitions);
+
+	if (rfi_flush == rfi_flush_orig) {
+		rfi_flush = !rfi_flush_orig;
+		if (write_debugfs_int("powerpc/rfi_flush", rfi_flush) < 0) {
+			perror("error writing to powerpc/rfi_flush debugfs file");
+			return 1;
+		}
+		iter = repetitions;
+		l1d_misses_total = 0;
+		passes = 0;
+		goto again;
+	}
+
+	perf_event_disable(fd);
+	close(fd);
+
+	set_dscr(0);
+
+	if (write_debugfs_int("powerpc/rfi_flush", rfi_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/rfi_flush debugfs file");
+		return 1;
+	}
+
+	if (have_entry_flush) {
+		if (write_debugfs_int("powerpc/entry_flush", entry_flush_orig) < 0) {
+			perror("unable to restore original value of powerpc/entry_flush "
+			       "debugfs file");
+			return 1;
+		}
+	}
+
+	return rc;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(rfi_flush_test, "rfi_flush_test");
+}
diff --git a/tools/testing/selftests/powerpc/security/settings b/tools/testing/selftests/powerpc/security/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/security/spectre_v2.c b/tools/testing/selftests/powerpc/security/spectre_v2.c
new file mode 100644
index 000000000000..5b2abb719ef2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/spectre_v2.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2018-2019 IBM Corporation.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <malloc.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <sys/prctl.h>
+#include "utils.h"
+
+#include "../pmu/event.h"
+
+
+extern void pattern_cache_loop(void);
+extern void indirect_branch_loop(void);
+
+static int do_count_loop(struct event *events, bool is_p9, s64 *miss_percent)
+{
+	u64 pred, mpred;
+
+	prctl(PR_TASK_PERF_EVENTS_ENABLE);
+
+	if (is_p9)
+		pattern_cache_loop();
+	else
+		indirect_branch_loop();
+
+	prctl(PR_TASK_PERF_EVENTS_DISABLE);
+
+	event_read(&events[0]);
+	event_read(&events[1]);
+
+	// We could scale all the events by running/enabled but we're lazy
+	// As long as the PMU is uncontended they should all run
+	FAIL_IF(events[0].result.running != events[0].result.enabled);
+	FAIL_IF(events[1].result.running != events[1].result.enabled);
+
+	pred =  events[0].result.value;
+	mpred = events[1].result.value;
+
+	if (is_p9) {
+		event_read(&events[2]);
+		event_read(&events[3]);
+		FAIL_IF(events[2].result.running != events[2].result.enabled);
+		FAIL_IF(events[3].result.running != events[3].result.enabled);
+
+		pred  += events[2].result.value;
+		mpred += events[3].result.value;
+	}
+
+	*miss_percent = 100 * mpred / pred;
+
+	return 0;
+}
+
+static void setup_event(struct event *e, u64 config, char *name)
+{
+	event_init_named(e, config, name);
+
+	e->attr.disabled = 1;
+	e->attr.exclude_kernel = 1;
+	e->attr.exclude_hv = 1;
+	e->attr.exclude_idle = 1;
+}
+
+enum spectre_v2_state {
+	VULNERABLE = 0,
+	UNKNOWN = 1,		// Works with FAIL_IF()
+	NOT_AFFECTED,
+	BRANCH_SERIALISATION,
+	COUNT_CACHE_DISABLED,
+	COUNT_CACHE_FLUSH_SW,
+	COUNT_CACHE_FLUSH_HW,
+	BTB_FLUSH,
+};
+
+static enum spectre_v2_state get_sysfs_state(void)
+{
+	enum spectre_v2_state state = UNKNOWN;
+	char buf[256];
+	int len;
+
+	memset(buf, 0, sizeof(buf));
+	FAIL_IF(read_sysfs_file("devices/system/cpu/vulnerabilities/spectre_v2", buf, sizeof(buf)));
+
+	// Make sure it's NULL terminated
+	buf[sizeof(buf) - 1] = '\0';
+
+	// Trim the trailing newline
+	len = strlen(buf);
+	FAIL_IF(len < 1);
+	buf[len - 1] = '\0';
+
+	printf("sysfs reports: '%s'\n", buf);
+
+	// Order matters
+	if (strstr(buf, "Vulnerable"))
+		state = VULNERABLE;
+	else if (strstr(buf, "Not affected"))
+		state = NOT_AFFECTED;
+	else if (strstr(buf, "Indirect branch serialisation (kernel only)"))
+		state = BRANCH_SERIALISATION;
+	else if (strstr(buf, "Indirect branch cache disabled"))
+		state = COUNT_CACHE_DISABLED;
+	else if (strstr(buf, "Software count cache flush (hardware accelerated)"))
+		state = COUNT_CACHE_FLUSH_HW;
+	else if (strstr(buf, "Software count cache flush"))
+		state = COUNT_CACHE_FLUSH_SW;
+	else if (strstr(buf, "Branch predictor state flush"))
+		state = BTB_FLUSH;
+
+	return state;
+}
+
+#define PM_BR_PRED_CCACHE	0x040a4	// P8 + P9
+#define PM_BR_MPRED_CCACHE	0x040ac	// P8 + P9
+#define PM_BR_PRED_PCACHE	0x048a0	// P9 only
+#define PM_BR_MPRED_PCACHE	0x048b0	// P9 only
+
+int spectre_v2_test(void)
+{
+	enum spectre_v2_state state;
+	struct event events[4];
+	s64 miss_percent;
+	bool is_p9;
+
+	// The PMU events we use only work on Power8 or later
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+
+	state = get_sysfs_state();
+	if (state == UNKNOWN) {
+		printf("Error: couldn't determine spectre_v2 mitigation state?\n");
+		return -1;
+	}
+
+	memset(events, 0, sizeof(events));
+
+	setup_event(&events[0], PM_BR_PRED_CCACHE,  "PM_BR_PRED_CCACHE");
+	setup_event(&events[1], PM_BR_MPRED_CCACHE, "PM_BR_MPRED_CCACHE");
+	FAIL_IF(event_open(&events[0]));
+	FAIL_IF(event_open_with_group(&events[1], events[0].fd) == -1);
+
+	is_p9 = ((mfspr(SPRN_PVR) >>  16) & 0xFFFF) == 0x4e;
+
+	if (is_p9) {
+		// Count pattern cache too
+		setup_event(&events[2], PM_BR_PRED_PCACHE,  "PM_BR_PRED_PCACHE");
+		setup_event(&events[3], PM_BR_MPRED_PCACHE, "PM_BR_MPRED_PCACHE");
+
+		FAIL_IF(event_open_with_group(&events[2], events[0].fd) == -1);
+		FAIL_IF(event_open_with_group(&events[3], events[0].fd) == -1);
+	}
+
+	FAIL_IF(do_count_loop(events, is_p9, &miss_percent));
+
+	event_report_justified(&events[0], 18, 10);
+	event_report_justified(&events[1], 18, 10);
+	event_close(&events[0]);
+	event_close(&events[1]);
+
+	if (is_p9) {
+		event_report_justified(&events[2], 18, 10);
+		event_report_justified(&events[3], 18, 10);
+		event_close(&events[2]);
+		event_close(&events[3]);
+	}
+
+	printf("Miss percent %lld %%\n", miss_percent);
+
+	switch (state) {
+	case VULNERABLE:
+	case NOT_AFFECTED:
+	case COUNT_CACHE_FLUSH_SW:
+	case COUNT_CACHE_FLUSH_HW:
+		// These should all not affect userspace branch prediction
+		if (miss_percent > 15) {
+			if (miss_percent > 95) {
+				/*
+				 * Such a mismatch may be caused by a system being unaware
+				 * the count cache is disabled. This may be to enable
+				 * guest migration between hosts with different settings.
+				 * Return skip code to avoid detecting this as an error.
+				 * We are not vulnerable and reporting otherwise, so
+				 * missing such a mismatch is safe.
+				 */
+				printf("Branch misses > 95%% unexpected in this configuration.\n");
+				printf("Count cache likely disabled without Linux knowing.\n");
+				if (state == COUNT_CACHE_FLUSH_SW)
+					printf("WARNING: Kernel performing unnecessary flushes.\n");
+				return 4;
+			}
+			printf("Branch misses > 15%% unexpected in this configuration!\n");
+			printf("Possible mismatch between reported & actual mitigation\n");
+
+			return 1;
+		}
+		break;
+	case BRANCH_SERIALISATION:
+		// This seems to affect userspace branch prediction a bit?
+		if (miss_percent > 25) {
+			printf("Branch misses > 25%% unexpected in this configuration!\n");
+			printf("Possible mismatch between reported & actual mitigation\n");
+			return 1;
+		}
+		break;
+	case COUNT_CACHE_DISABLED:
+		if (miss_percent < 95) {
+			printf("Branch misses < 95%% unexpected in this configuration!\n");
+			printf("Possible mismatch between reported & actual mitigation\n");
+			return 1;
+		}
+		break;
+	case UNKNOWN:
+	case BTB_FLUSH:
+		printf("Not sure!\n");
+		return 1;
+	}
+
+	printf("OK - Measured branch prediction rates match reported spectre v2 mitigation.\n");
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(spectre_v2_test, "spectre_v2");
+}
diff --git a/tools/testing/selftests/powerpc/security/uaccess_flush.c b/tools/testing/selftests/powerpc/security/uaccess_flush.c
new file mode 100644
index 000000000000..fcf23ea9b183
--- /dev/null
+++ b/tools/testing/selftests/powerpc/security/uaccess_flush.c
@@ -0,0 +1,158 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/*
+ * Copyright 2018 IBM Corporation.
+ * Copyright 2020 Canonical Ltd.
+ */
+
+#define __SANE_USERSPACE_TYPES__
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <malloc.h>
+#include <unistd.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include "utils.h"
+#include "flush_utils.h"
+
+int uaccess_flush_test(void)
+{
+	char *p;
+	int repetitions = 10;
+	int fd, passes = 0, iter, rc = 0;
+	struct perf_event_read v;
+	__u64 l1d_misses_total = 0;
+	unsigned long iterations = 100000, zero_size = 24 * 1024;
+	unsigned long l1d_misses_expected;
+	int rfi_flush_orig;
+	int entry_flush_orig;
+	int uaccess_flush, uaccess_flush_orig;
+
+	SKIP_IF(geteuid() != 0);
+
+	// The PMU event we use only works on Power7 or later
+	SKIP_IF(!have_hwcap(PPC_FEATURE_ARCH_2_06));
+
+	if (read_debugfs_int("powerpc/rfi_flush", &rfi_flush_orig) < 0) {
+		perror("Unable to read powerpc/rfi_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (read_debugfs_int("powerpc/entry_flush", &entry_flush_orig) < 0) {
+		perror("Unable to read powerpc/entry_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (read_debugfs_int("powerpc/uaccess_flush", &uaccess_flush_orig) < 0) {
+		perror("Unable to read powerpc/entry_flush debugfs file");
+		SKIP_IF(1);
+	}
+
+	if (rfi_flush_orig != 0) {
+		if (write_debugfs_int("powerpc/rfi_flush", 0) < 0) {
+			perror("error writing to powerpc/rfi_flush debugfs file");
+			FAIL_IF(1);
+		}
+	}
+
+	if (entry_flush_orig != 0) {
+		if (write_debugfs_int("powerpc/entry_flush", 0) < 0) {
+			perror("error writing to powerpc/entry_flush debugfs file");
+			FAIL_IF(1);
+		}
+	}
+
+	uaccess_flush = uaccess_flush_orig;
+
+	fd = perf_event_open_counter(PERF_TYPE_HW_CACHE, PERF_L1D_READ_MISS_CONFIG, -1);
+	FAIL_IF(fd < 0);
+
+	p = (char *)memalign(zero_size, CACHELINE_SIZE);
+
+	FAIL_IF(perf_event_enable(fd));
+
+	// disable L1 prefetching
+	set_dscr(1);
+
+	iter = repetitions;
+
+	/*
+	 * We expect to see l1d miss for each cacheline access when entry_flush
+	 * is set. Allow a small variation on this.
+	 */
+	l1d_misses_expected = iterations * (zero_size / CACHELINE_SIZE - 2);
+
+again:
+	FAIL_IF(perf_event_reset(fd));
+
+	syscall_loop_uaccess(p, iterations, zero_size);
+
+	FAIL_IF(read(fd, &v, sizeof(v)) != sizeof(v));
+
+	if (uaccess_flush && v.l1d_misses >= l1d_misses_expected)
+		passes++;
+	else if (!uaccess_flush && v.l1d_misses < (l1d_misses_expected / 2))
+		passes++;
+
+	l1d_misses_total += v.l1d_misses;
+
+	while (--iter)
+		goto again;
+
+	if (passes < repetitions) {
+		printf("FAIL (L1D misses with uaccess_flush=%d: %llu %c %lu) [%d/%d failures]\n",
+		       uaccess_flush, l1d_misses_total, uaccess_flush ? '<' : '>',
+		       uaccess_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       repetitions - passes, repetitions);
+		rc = 1;
+	} else {
+		printf("PASS (L1D misses with uaccess_flush=%d: %llu %c %lu) [%d/%d pass]\n",
+		       uaccess_flush, l1d_misses_total, uaccess_flush ? '>' : '<',
+		       uaccess_flush ? repetitions * l1d_misses_expected :
+		       repetitions * l1d_misses_expected / 2,
+		       passes, repetitions);
+	}
+
+	if (uaccess_flush == uaccess_flush_orig) {
+		uaccess_flush = !uaccess_flush_orig;
+		if (write_debugfs_int("powerpc/uaccess_flush", uaccess_flush) < 0) {
+			perror("error writing to powerpc/uaccess_flush debugfs file");
+			return 1;
+		}
+		iter = repetitions;
+		l1d_misses_total = 0;
+		passes = 0;
+		goto again;
+	}
+
+	perf_event_disable(fd);
+	close(fd);
+
+	set_dscr(0);
+
+	if (write_debugfs_int("powerpc/rfi_flush", rfi_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/rfi_flush debugfs file");
+		return 1;
+	}
+
+	if (write_debugfs_int("powerpc/entry_flush", entry_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/entry_flush debugfs file");
+		return 1;
+	}
+
+	if (write_debugfs_int("powerpc/uaccess_flush", uaccess_flush_orig) < 0) {
+		perror("unable to restore original value of powerpc/uaccess_flush debugfs file");
+		return 1;
+	}
+
+	return rc;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(uaccess_flush_test, "uaccess_flush_test");
+}
diff --git a/tools/testing/selftests/powerpc/signal/.gitignore b/tools/testing/selftests/powerpc/signal/.gitignore
new file mode 100644
index 000000000000..9d0915777fed
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/.gitignore
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+signal
+signal_tm
+sigfuz
+sigreturn_vdso
+sig_sc_double_restart
+sigreturn_kernel
+sigreturn_unaligned
diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile
new file mode 100644
index 000000000000..ece95bd52be9
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := signal signal_tm sigfuz sigreturn_vdso sig_sc_double_restart
+TEST_GEN_PROGS += sigreturn_kernel
+TEST_GEN_PROGS += sigreturn_unaligned
+
+$(OUTPUT)/signal_tm: CFLAGS += -mhtm
+$(OUTPUT)/sigfuz: CFLAGS += -pthread -m64
+
+TEST_FILES := settings
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += -maltivec
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c signal.S
diff --git a/tools/testing/selftests/powerpc/signal/settings b/tools/testing/selftests/powerpc/signal/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/powerpc/signal/sig_sc_double_restart.c b/tools/testing/selftests/powerpc/signal/sig_sc_double_restart.c
new file mode 100644
index 000000000000..e3972264615b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/sig_sc_double_restart.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Test that a syscall does not get restarted twice, handled by trap_norestart()
+ *
+ * Based on Al's description, and a test for the bug fixed in this commit:
+ *
+ * commit 9a81c16b527528ad307843be5571111aa8d35a80
+ * Author: Al Viro <viro@zeniv.linux.org.uk>
+ * Date:   Mon Sep 20 21:48:57 2010 +0100
+ *
+ *  powerpc: fix double syscall restarts
+ *
+ *  Make sigreturn zero regs->trap, make do_signal() do the same on all
+ *  paths.  As it is, signal interrupting e.g. read() from fd 512 (==
+ *  ERESTARTSYS) with another signal getting unblocked when the first
+ *  handler finishes will lead to restart one insn earlier than it ought
+ *  to.  Same for multiple signals with in-kernel handlers interrupting
+ *  that sucker at the same time.  Same for multiple signals of any kind
+ *  interrupting that sucker on 64bit...
+ */
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "utils.h"
+
+static void SIGUSR1_handler(int sig)
+{
+	kill(getpid(), SIGUSR2);
+	/*
+	 * SIGUSR2 is blocked until the handler exits, at which point it will
+	 * be raised again and think there is a restart to be done because the
+	 * pending restarted syscall has 512 (ERESTARTSYS) in r3. The second
+	 * restart will retreat NIP another 4 bytes to fail case branch.
+	 */
+}
+
+static void SIGUSR2_handler(int sig)
+{
+}
+
+static ssize_t raw_read(int fd, void *buf, size_t count)
+{
+	register long nr asm("r0") = __NR_read;
+	register long _fd asm("r3") = fd;
+	register void *_buf asm("r4") = buf;
+	register size_t _count asm("r5") = count;
+
+	asm volatile(
+"		b	0f		\n"
+"		b	1f		\n"
+"	0:	sc	0		\n"
+"		bns	2f		\n"
+"		neg	%0,%0		\n"
+"		b	2f		\n"
+"	1:				\n"
+"		li	%0,%4		\n"
+"	2:				\n"
+		: "+r"(_fd), "+r"(nr), "+r"(_buf), "+r"(_count)
+		: "i"(-ENOANO)
+		: "memory", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "ctr", "cr0");
+
+	if (_fd < 0) {
+		errno = -_fd;
+		_fd = -1;
+	}
+
+	return _fd;
+}
+
+#define DATA "test 123"
+#define DLEN (strlen(DATA)+1)
+
+int test_restart(void)
+{
+	int pipefd[2];
+	pid_t pid;
+	char buf[512];
+
+	if (pipe(pipefd) == -1) {
+		perror("pipe");
+		exit(EXIT_FAILURE);
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		perror("fork");
+		exit(EXIT_FAILURE);
+	}
+
+	if (pid == 0) { /* Child reads from pipe */
+		struct sigaction act;
+		int fd;
+
+		memset(&act, 0, sizeof(act));
+		sigaddset(&act.sa_mask, SIGUSR2);
+		act.sa_handler = SIGUSR1_handler;
+		act.sa_flags = SA_RESTART;
+		if (sigaction(SIGUSR1, &act, NULL) == -1) {
+			perror("sigaction");
+			exit(EXIT_FAILURE);
+		}
+
+		memset(&act, 0, sizeof(act));
+		act.sa_handler = SIGUSR2_handler;
+		act.sa_flags = SA_RESTART;
+		if (sigaction(SIGUSR2, &act, NULL) == -1) {
+			perror("sigaction");
+			exit(EXIT_FAILURE);
+		}
+
+		/* Let's get ERESTARTSYS into r3 */
+		while ((fd = dup(pipefd[0])) != 512) {
+			if (fd == -1) {
+				perror("dup");
+				exit(EXIT_FAILURE);
+			}
+		}
+
+		if (raw_read(fd, buf, 512) == -1) {
+			if (errno == ENOANO) {
+				fprintf(stderr, "Double restart moved restart before sc instruction.\n");
+				_exit(EXIT_FAILURE);
+			}
+			perror("read");
+			exit(EXIT_FAILURE);
+		}
+
+		if (strncmp(buf, DATA, DLEN)) {
+			fprintf(stderr, "bad test string %s\n", buf);
+			exit(EXIT_FAILURE);
+		}
+
+		return 0;
+
+	} else {
+		int wstatus;
+
+		usleep(100000);		/* Hack to get reader waiting */
+		kill(pid, SIGUSR1);
+		usleep(100000);
+		if (write(pipefd[1], DATA, DLEN) != DLEN) {
+			perror("write");
+			exit(EXIT_FAILURE);
+		}
+		close(pipefd[0]);
+		close(pipefd[1]);
+		if (wait(&wstatus) == -1) {
+			perror("wait");
+			exit(EXIT_FAILURE);
+		}
+		if (!WIFEXITED(wstatus)) {
+			fprintf(stderr, "child exited abnormally\n");
+			exit(EXIT_FAILURE);
+		}
+
+		FAIL_IF(WEXITSTATUS(wstatus) != EXIT_SUCCESS);
+
+		return 0;
+	}
+}
+
+int main(void)
+{
+	test_harness_set_timeout(10);
+	return test_harness(test_restart, "sig sys restart");
+}
diff --git a/tools/testing/selftests/powerpc/signal/sigfuz.c b/tools/testing/selftests/powerpc/signal/sigfuz.c
new file mode 100644
index 000000000000..c101b1391696
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/sigfuz.c
@@ -0,0 +1,325 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018, Breno Leitao, IBM Corp.
+ * Licensed under GPLv2.
+ *
+ * Sigfuz(tm): A PowerPC TM-aware signal fuzzer.
+ *
+ * This is a new selftest that raises SIGUSR1 signals and handles it in a set
+ * of different ways, trying to create different scenario for testing
+ * purpose.
+ *
+ * This test works raising a signal and calling sigreturn interleaved with
+ * TM operations, as starting, suspending and terminating a transaction. The
+ * test depends on random numbers, and, based on them, it sets different TM
+ * states.
+ *
+ * Other than that, the test fills out the user context struct that is passed
+ * to the sigreturn system call with random data, in order to make sure that
+ * the signal handler syscall can handle different and invalid states
+ * properly.
+ *
+ * This selftest has command line parameters to control what kind of tests the
+ * user wants to run, as for example, if a transaction should be started prior
+ * to signal being raised, or, after the signal being raised and before the
+ * sigreturn. If no parameter is given, the default is enabling all options.
+ *
+ * This test does not check if the user context is being read and set
+ * properly by the kernel. Its purpose, at this time, is basically
+ * guaranteeing that the kernel does not crash on invalid scenarios.
+ */
+
+#include <stdio.h>
+#include <limits.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <ucontext.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include "utils.h"
+
+/* Selftest defaults */
+#define COUNT_MAX	600		/* Number of interactions */
+#define THREADS		16		/* Number of threads */
+
+/* Arguments options */
+#define ARG_MESS_WITH_TM_AT	0x1
+#define ARG_MESS_WITH_TM_BEFORE	0x2
+#define ARG_MESS_WITH_MSR_AT	0x4
+#define ARG_FOREVER		0x10
+#define ARG_COMPLETE		(ARG_MESS_WITH_TM_AT |		\
+				ARG_MESS_WITH_TM_BEFORE |	\
+				ARG_MESS_WITH_MSR_AT)
+
+static int args;
+static int nthread = THREADS;
+static int count_max = COUNT_MAX;
+
+/* checkpoint context */
+static ucontext_t *tmp_uc;
+
+/* Return true with 1/x probability */
+static int one_in_chance(int x)
+{
+	return rand() % x == 0;
+}
+
+/* Change TM states */
+static void mess_with_tm(void)
+{
+	/* Starts a transaction 33% of the time */
+	if (one_in_chance(3)) {
+		asm ("tbegin.	;"
+		     "beq 8	;");
+
+		/* And suspended half of them */
+		if (one_in_chance(2))
+			asm("tsuspend.	;");
+	}
+
+	/* Call 'tend' in 5% of the runs */
+	if (one_in_chance(20))
+		asm("tend.	;");
+}
+
+/* Signal handler that will be invoked with raise() */
+static void trap_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	ucontext_t *ucp = uc;
+
+	ucp->uc_link = tmp_uc;
+
+	/*
+	 * Set uc_link in three possible ways:
+	 *  - Setting a single 'int' in the whole chunk
+	 *  - Cloning ucp into uc_link
+	 *  - Allocating a new memory chunk
+	 */
+	if (one_in_chance(3)) {
+		memset(ucp->uc_link, rand(), sizeof(ucontext_t));
+	} else if (one_in_chance(2)) {
+		memcpy(ucp->uc_link, uc, sizeof(ucontext_t));
+	} else if (one_in_chance(2)) {
+		if (tmp_uc) {
+			free(tmp_uc);
+			tmp_uc = NULL;
+		}
+		tmp_uc = malloc(sizeof(ucontext_t));
+		ucp->uc_link = tmp_uc;
+		/* Trying to cause a major page fault at Kernel level */
+		madvise(ucp->uc_link, sizeof(ucontext_t), MADV_DONTNEED);
+	}
+
+	if (args & ARG_MESS_WITH_MSR_AT) {
+		/* Changing the checkpointed registers */
+		if (one_in_chance(4)) {
+			ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |= MSR_TS_S;
+		} else {
+			if (one_in_chance(2)) {
+				ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |=
+						 MSR_TS_T;
+			} else if (one_in_chance(2)) {
+				ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] |=
+						MSR_TS_T | MSR_TS_S;
+			}
+		}
+
+		/* Checking the current register context */
+		if (one_in_chance(2)) {
+			ucp->uc_mcontext.gp_regs[PT_MSR] |= MSR_TS_S;
+		} else if (one_in_chance(2)) {
+			if (one_in_chance(2))
+				ucp->uc_mcontext.gp_regs[PT_MSR] |=
+					MSR_TS_T;
+			else if (one_in_chance(2))
+				ucp->uc_mcontext.gp_regs[PT_MSR] |=
+					MSR_TS_T | MSR_TS_S;
+		}
+	}
+
+	if (one_in_chance(20)) {
+		/* Nested transaction start */
+		if (one_in_chance(5))
+			mess_with_tm();
+
+		/* Return without changing any other context info */
+		return;
+	}
+
+	if (one_in_chance(10))
+		ucp->uc_mcontext.gp_regs[PT_MSR] = random();
+	if (one_in_chance(10))
+		ucp->uc_mcontext.gp_regs[PT_NIP] = random();
+	if (one_in_chance(10))
+		ucp->uc_link->uc_mcontext.gp_regs[PT_MSR] = random();
+	if (one_in_chance(10))
+		ucp->uc_link->uc_mcontext.gp_regs[PT_NIP] = random();
+
+	ucp->uc_mcontext.gp_regs[PT_TRAP] = random();
+	ucp->uc_mcontext.gp_regs[PT_DSISR] = random();
+	ucp->uc_mcontext.gp_regs[PT_DAR] = random();
+	ucp->uc_mcontext.gp_regs[PT_ORIG_R3] = random();
+	ucp->uc_mcontext.gp_regs[PT_XER] = random();
+	ucp->uc_mcontext.gp_regs[PT_RESULT] = random();
+	ucp->uc_mcontext.gp_regs[PT_SOFTE] = random();
+	ucp->uc_mcontext.gp_regs[PT_DSCR] = random();
+	ucp->uc_mcontext.gp_regs[PT_CTR] = random();
+	ucp->uc_mcontext.gp_regs[PT_LNK] = random();
+	ucp->uc_mcontext.gp_regs[PT_CCR] = random();
+	ucp->uc_mcontext.gp_regs[PT_REGS_COUNT] = random();
+
+	ucp->uc_link->uc_mcontext.gp_regs[PT_TRAP] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_DSISR] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_DAR] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_ORIG_R3] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_XER] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_RESULT] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_SOFTE] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_DSCR] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_CTR] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_LNK] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_CCR] = random();
+	ucp->uc_link->uc_mcontext.gp_regs[PT_REGS_COUNT] = random();
+
+	if (args & ARG_MESS_WITH_TM_BEFORE) {
+		if (one_in_chance(2))
+			mess_with_tm();
+	}
+}
+
+static void seg_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	/* Clear exit for process that segfaults */
+	exit(0);
+}
+
+static void *sigfuz_test(void *thrid)
+{
+	struct sigaction trap_sa, seg_sa;
+	int ret, i = 0;
+	pid_t t;
+
+	tmp_uc = malloc(sizeof(ucontext_t));
+
+	/* Main signal handler */
+	trap_sa.sa_flags = SA_SIGINFO;
+	trap_sa.sa_sigaction = trap_signal_handler;
+
+	/* SIGSEGV signal handler */
+	seg_sa.sa_flags = SA_SIGINFO;
+	seg_sa.sa_sigaction = seg_signal_handler;
+
+	/* The signal handler will enable MSR_TS */
+	sigaction(SIGUSR1, &trap_sa, NULL);
+
+	/* If it does not crash, it will segfault, avoid it to retest */
+	sigaction(SIGSEGV, &seg_sa, NULL);
+
+	while (i < count_max) {
+		t = fork();
+
+		if (t == 0) {
+			/* Once seed per process */
+			srand(time(NULL) + getpid());
+			if (args & ARG_MESS_WITH_TM_AT) {
+				if (one_in_chance(2))
+					mess_with_tm();
+			}
+			raise(SIGUSR1);
+			exit(0);
+		} else {
+			waitpid(t, &ret, 0);
+		}
+		if (!(args & ARG_FOREVER))
+			i++;
+	}
+
+	/* If not freed already, free now */
+	if (tmp_uc) {
+		free(tmp_uc);
+		tmp_uc = NULL;
+	}
+
+	return NULL;
+}
+
+static int signal_fuzzer(void)
+{
+	int t, rc;
+	pthread_t *threads;
+
+	threads = malloc(nthread * sizeof(pthread_t));
+
+	for (t = 0; t < nthread; t++) {
+		rc = pthread_create(&threads[t], NULL, sigfuz_test,
+				    (void *)&t);
+		if (rc)
+			perror("Thread creation error\n");
+	}
+
+	for (t = 0; t < nthread; t++) {
+		rc = pthread_join(threads[t], NULL);
+		if (rc)
+			perror("Thread join error\n");
+	}
+
+	free(threads);
+
+	return EXIT_SUCCESS;
+}
+
+static void show_help(char *name)
+{
+	printf("%s: Sigfuzzer for powerpc\n", name);
+	printf("Usage:\n");
+	printf("\t-b\t Mess with TM before raising a SIGUSR1 signal\n");
+	printf("\t-a\t Mess with TM after raising a SIGUSR1 signal\n");
+	printf("\t-m\t Mess with MSR[TS] bits at mcontext\n");
+	printf("\t-x\t Mess with everything above\n");
+	printf("\t-f\t Run forever (Press ^C to Quit)\n");
+	printf("\t-i\t Amount of interactions.	(Default = %d)\n", COUNT_MAX);
+	printf("\t-t\t Amount of threads.	(Default = %d)\n", THREADS);
+	exit(-1);
+}
+
+int main(int argc, char **argv)
+{
+	int opt;
+
+	while ((opt = getopt(argc, argv, "bamxt:fi:h")) != -1) {
+		if (opt == 'b') {
+			printf("Mess with TM before signal\n");
+			args |= ARG_MESS_WITH_TM_BEFORE;
+		} else if (opt == 'a') {
+			printf("Mess with TM at signal handler\n");
+			args |= ARG_MESS_WITH_TM_AT;
+		} else if (opt == 'm') {
+			printf("Mess with MSR[TS] bits in mcontext\n");
+			args |= ARG_MESS_WITH_MSR_AT;
+		} else if (opt == 'x') {
+			printf("Running with all options enabled\n");
+			args |= ARG_COMPLETE;
+		} else if (opt == 't') {
+			nthread = atoi(optarg);
+			printf("Threads = %d\n", nthread);
+		} else if (opt == 'f') {
+			args |= ARG_FOREVER;
+			printf("Press ^C to stop\n");
+			test_harness_set_timeout(-1);
+		} else if (opt == 'i') {
+			count_max = atoi(optarg);
+			printf("Running for %d interactions\n", count_max);
+		} else if (opt == 'h') {
+			show_help(argv[0]);
+		}
+	}
+
+	/* Default test suite */
+	if (!args)
+		args = ARG_COMPLETE;
+
+	return test_harness(signal_fuzzer, "signal_fuzzer");
+}
diff --git a/tools/testing/selftests/powerpc/signal/signal.S b/tools/testing/selftests/powerpc/signal/signal.S
new file mode 100644
index 000000000000..228fba49935d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/signal.S
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+
+/* long signal_self(pid_t pid, int sig); */
+FUNC_START(signal_self)
+	li	r0,37 /* sys_kill */
+	/* r3 already has our pid in it */
+	/* r4 already has signal type in it */
+	sc
+	bc	4,3,1f
+	subfze	r3,r3
+1:	blr
+FUNC_END(signal_self)
+
+/* long tm_signal_self(pid_t pid, int sig, int *ret); */
+FUNC_START(tm_signal_self)
+	PUSH_BASIC_STACK(8)
+	std	r5,STACK_FRAME_PARAM(0)(sp) /* ret */
+	tbegin.
+	beq	1f
+	tsuspend.
+	li	r0,37 /* sys_kill */
+	/* r3 already has our pid in it */
+	/* r4 already has signal type in it */
+	sc
+	ld	r5,STACK_FRAME_PARAM(0)(sp) /* ret */
+	bc	4,3,2f
+	subfze	r3,r3
+2:	std	r3,0(r5)
+	tabort. 0
+	tresume. /* Be nice to some cleanup, jumps back to tbegin then to 1: */
+	/*
+	 * Transaction should be proper doomed and we should never get
+	 * here
+	 */
+	li	r3,1
+	POP_BASIC_STACK(8)
+	blr
+1:	li	r3,0
+	POP_BASIC_STACK(8)
+	blr
+FUNC_END(tm_signal_self)
diff --git a/tools/testing/selftests/powerpc/signal/signal.c b/tools/testing/selftests/powerpc/signal/signal.c
new file mode 100644
index 000000000000..766e484d984b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/signal.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Sending one self a signal should always get delivered.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+
+#define MAX_ATTEMPT 500000
+#define TIMEOUT 5
+
+extern long signal_self(pid_t pid, int sig);
+
+static sig_atomic_t signaled;
+static sig_atomic_t fail;
+
+static void signal_handler(int sig)
+{
+	if (sig == SIGUSR1)
+		signaled = 1;
+	else
+		fail = 1;
+}
+
+static int test_signal()
+{
+	int i;
+	struct sigaction act;
+	pid_t ppid = getpid();
+	pid_t pid;
+
+	act.sa_handler = signal_handler;
+	act.sa_flags = 0;
+	sigemptyset(&act.sa_mask);
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction SIGUSR1");
+		exit(1);
+	}
+	if (sigaction(SIGALRM, &act, NULL) < 0) {
+		perror("sigaction SIGALRM");
+		exit(1);
+	}
+
+	/* Don't do this for MAX_ATTEMPT, its simply too long */
+	for(i  = 0; i < 1000; i++) {
+		pid = fork();
+		if (pid == -1) {
+			perror("fork");
+			exit(1);
+		}
+		if (pid == 0) {
+			signal_self(ppid, SIGUSR1);
+			exit(1);
+		} else {
+			alarm(0); /* Disable any pending */
+			alarm(2);
+			while (!signaled && !fail)
+				asm volatile("": : :"memory");
+			if (!signaled) {
+				fprintf(stderr, "Didn't get signal from child\n");
+				FAIL_IF(1); /* For the line number */
+			}
+			/* Otherwise we'll loop too fast and fork() will eventually fail */
+			waitpid(pid, NULL, 0);
+		}
+	}
+
+	for (i = 0; i < MAX_ATTEMPT; i++) {
+		long rc;
+
+		alarm(0); /* Disable any pending */
+		signaled = 0;
+		alarm(TIMEOUT);
+		rc = signal_self(ppid, SIGUSR1);
+		if (rc) {
+			fprintf(stderr, "(%d) Fail reason: %d rc=0x%lx",
+					i, fail, rc);
+			FAIL_IF(1); /* For the line number */
+		}
+		while (!signaled && !fail)
+			asm volatile("": : :"memory");
+		if (!signaled) {
+			fprintf(stderr, "(%d) Fail reason: %d rc=0x%lx",
+					i, fail, rc);
+			FAIL_IF(1); /* For the line number */
+		}
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	test_harness_set_timeout(300);
+	return test_harness(test_signal, "signal");
+}
diff --git a/tools/testing/selftests/powerpc/signal/signal_tm.c b/tools/testing/selftests/powerpc/signal/signal_tm.c
new file mode 100644
index 000000000000..c9cf66a3daa2
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/signal_tm.c
@@ -0,0 +1,107 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Sending one self a signal should always get delivered.
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+#include "../tm/tm.h"
+
+#define MAX_ATTEMPT 500000
+#define TIMEOUT 10
+
+extern long tm_signal_self(pid_t pid, int sig, long *ret);
+
+static sig_atomic_t signaled;
+static sig_atomic_t fail;
+
+static void signal_handler(int sig)
+{
+	if (tcheck_active()) {
+		fail = 2;
+		return;
+	}
+
+	if (sig == SIGUSR1)
+		signaled = 1;
+	else
+		fail = 1;
+}
+
+static int test_signal_tm()
+{
+	int i;
+	struct sigaction act;
+
+	act.sa_handler = signal_handler;
+	act.sa_flags = 0;
+	sigemptyset(&act.sa_mask);
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction SIGUSR1");
+		exit(1);
+	}
+	if (sigaction(SIGALRM, &act, NULL) < 0) {
+		perror("sigaction SIGALRM");
+		exit(1);
+	}
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	for (i = 0; i < MAX_ATTEMPT; i++) {
+		/*
+		 * If anything bad happens in ASM and we fail to set ret
+		 * because *handwave* TM this will cause failure
+		 */
+		long ret = 0xdead;
+		long rc = 0xbeef;
+
+		alarm(0); /* Disable any pending */
+		signaled = 0;
+		alarm(TIMEOUT);
+		FAIL_IF(tcheck_transactional());
+		rc = tm_signal_self(getpid(), SIGUSR1, &ret);
+		if (ret == 0xdead)
+			/*
+			 * This basically means the transaction aborted before we
+			 * even got to the suspend... this is crazy but it
+			 * happens.
+			 * Yes this also means we might never make forward
+			 * progress... the alarm() will trip eventually...
+			 */
+			continue;
+
+		if (rc || ret) {
+			/* Ret is actually an errno */
+			printf("TEXASR 0x%016lx, TFIAR 0x%016lx\n",
+					__builtin_get_texasr(), __builtin_get_tfiar());
+			fprintf(stderr, "(%d) Fail reason: %d rc=0x%lx ret=0x%lx\n",
+					i, fail, rc, ret);
+			FAIL_IF(ret);
+		}
+		while(!signaled && !fail)
+			asm volatile("": : :"memory");
+		if (!signaled) {
+			fprintf(stderr, "(%d) Fail reason: %d rc=0x%lx ret=0x%lx\n",
+					i, fail, rc, ret);
+			FAIL_IF(fail); /* For the line number */
+		}
+	}
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_signal_tm, "signal_tm");
+}
diff --git a/tools/testing/selftests/powerpc/signal/sigreturn_kernel.c b/tools/testing/selftests/powerpc/signal/sigreturn_kernel.c
new file mode 100644
index 000000000000..0a1b6e591eee
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/sigreturn_kernel.c
@@ -0,0 +1,132 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that we can't sigreturn to kernel addresses, or to kernel mode.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+#define MSR_PR (1ul << 14)
+
+static volatile unsigned long long sigreturn_addr;
+static volatile unsigned long long sigreturn_msr_mask;
+
+static void sigusr1_handler(int signo, siginfo_t *si, void *uc_ptr)
+{
+	ucontext_t *uc = (ucontext_t *)uc_ptr;
+
+	if (sigreturn_addr)
+		UCONTEXT_NIA(uc) = sigreturn_addr;
+
+	if (sigreturn_msr_mask)
+		UCONTEXT_MSR(uc) &= sigreturn_msr_mask;
+}
+
+static pid_t fork_child(void)
+{
+	pid_t pid;
+
+	pid = fork();
+	if (pid == 0) {
+		raise(SIGUSR1);
+		exit(0);
+	}
+
+	return pid;
+}
+
+static int expect_segv(pid_t pid)
+{
+	int child_ret;
+
+	waitpid(pid, &child_ret, 0);
+	FAIL_IF(WIFEXITED(child_ret));
+	FAIL_IF(!WIFSIGNALED(child_ret));
+	FAIL_IF(WTERMSIG(child_ret) != 11);
+
+	return 0;
+}
+
+int test_sigreturn_kernel(void)
+{
+	struct sigaction act;
+	int child_ret, i;
+	pid_t pid;
+
+	act.sa_sigaction = sigusr1_handler;
+	act.sa_flags = SA_SIGINFO;
+	sigemptyset(&act.sa_mask);
+
+	FAIL_IF(sigaction(SIGUSR1, &act, NULL));
+
+	for (i = 0; i < 2; i++) {
+		// Return to kernel
+		sigreturn_addr = 0xcull << 60;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to kernel virtual
+		sigreturn_addr = 0xc008ull << 48;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return out of range
+		sigreturn_addr = 0xc010ull << 48;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to no-man's land, just below PAGE_OFFSET
+		sigreturn_addr = (0xcull << 60) - (64 * 1024);
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to no-man's land, above TASK_SIZE_4PB
+		sigreturn_addr = 0x1ull << 52;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to 0xd space
+		sigreturn_addr = 0xdull << 60;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to 0xe space
+		sigreturn_addr = 0xeull << 60;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Return to 0xf space
+		sigreturn_addr = 0xfull << 60;
+		pid = fork_child();
+		expect_segv(pid);
+
+		// Attempt to set PR=0 for 2nd loop (should be blocked by kernel)
+		sigreturn_msr_mask = ~MSR_PR;
+	}
+
+	printf("All children killed as expected\n");
+
+	// Don't change address, just MSR, should return to user as normal
+	sigreturn_addr = 0;
+	sigreturn_msr_mask = ~MSR_PR;
+	pid = fork_child();
+	waitpid(pid, &child_ret, 0);
+	FAIL_IF(!WIFEXITED(child_ret));
+	FAIL_IF(WIFSIGNALED(child_ret));
+	FAIL_IF(WEXITSTATUS(child_ret) != 0);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_sigreturn_kernel, "sigreturn_kernel");
+}
diff --git a/tools/testing/selftests/powerpc/signal/sigreturn_unaligned.c b/tools/testing/selftests/powerpc/signal/sigreturn_unaligned.c
new file mode 100644
index 000000000000..6e58ee4f0fdf
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/sigreturn_unaligned.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test sigreturn to an unaligned address, ie. low 2 bits set.
+ * Nothing bad should happen.
+ * This was able to trigger warnings with CONFIG_PPC_RFI_SRR_DEBUG=y.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+
+#include "utils.h"
+
+
+static void sigusr1_handler(int signo, siginfo_t *info, void *ptr)
+{
+	ucontext_t *uc = ptr;
+
+	UCONTEXT_NIA(uc) |= 3;
+}
+
+static int test_sigreturn_unaligned(void)
+{
+	struct sigaction action;
+
+	memset(&action, 0, sizeof(action));
+	action.sa_sigaction = sigusr1_handler;
+	action.sa_flags = SA_SIGINFO;
+
+	FAIL_IF(sigaction(SIGUSR1, &action, NULL) == -1);
+
+	raise(SIGUSR1);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_sigreturn_unaligned, "sigreturn_unaligned");
+}
diff --git a/tools/testing/selftests/powerpc/signal/sigreturn_vdso.c b/tools/testing/selftests/powerpc/signal/sigreturn_vdso.c
new file mode 100644
index 000000000000..e282fff0fe25
--- /dev/null
+++ b/tools/testing/selftests/powerpc/signal/sigreturn_vdso.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test that we can take signals with and without the VDSO mapped, which trigger
+ * different paths in the signal handling code.
+ *
+ * See handle_rt_signal64() and setup_trampoline() in signal_64.c
+ */
+
+#define _GNU_SOURCE
+
+#include <errno.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+// Ensure assert() is not compiled out
+#undef NDEBUG
+#include <assert.h>
+
+#include "utils.h"
+
+static int search_proc_maps(char *needle, unsigned long *low, unsigned long *high)
+{
+	unsigned long start, end;
+	static char buf[4096];
+	char name[128];
+	FILE *f;
+	int rc = -1;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!f) {
+		perror("fopen");
+		return -1;
+	}
+
+	while (fgets(buf, sizeof(buf), f)) {
+		rc = sscanf(buf, "%lx-%lx %*c%*c%*c%*c %*x %*d:%*d %*d %127s\n",
+			    &start, &end, name);
+		if (rc == 2)
+			continue;
+
+		if (rc != 3) {
+			printf("sscanf errored\n");
+			rc = -1;
+			break;
+		}
+
+		if (strstr(name, needle)) {
+			*low = start;
+			*high = end - 1;
+			rc = 0;
+			break;
+		}
+	}
+
+	fclose(f);
+
+	return rc;
+}
+
+static volatile sig_atomic_t took_signal = 0;
+
+static void sigusr1_handler(int sig)
+{
+	took_signal++;
+}
+
+int test_sigreturn_vdso(void)
+{
+	unsigned long low, high, size;
+	struct sigaction act;
+	char *p;
+
+	act.sa_handler = sigusr1_handler;
+	act.sa_flags = 0;
+	sigemptyset(&act.sa_mask);
+
+	assert(sigaction(SIGUSR1, &act, NULL) == 0);
+
+	// Confirm the VDSO is mapped, and work out where it is
+	assert(search_proc_maps("[vdso]", &low, &high) == 0);
+	size = high - low + 1;
+	printf("VDSO is at 0x%lx-0x%lx (%lu bytes)\n", low, high, size);
+
+	kill(getpid(), SIGUSR1);
+	assert(took_signal == 1);
+	printf("Signal delivered OK with VDSO mapped\n");
+
+	// Remap the VDSO somewhere else
+	p = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
+	assert(p != MAP_FAILED);
+	assert(mremap((void *)low, size, size, MREMAP_MAYMOVE|MREMAP_FIXED, p) != MAP_FAILED);
+	assert(search_proc_maps("[vdso]", &low, &high) == 0);
+	size = high - low + 1;
+	printf("VDSO moved to 0x%lx-0x%lx (%lu bytes)\n", low, high, size);
+
+	kill(getpid(), SIGUSR1);
+	assert(took_signal == 2);
+	printf("Signal delivered OK with VDSO moved\n");
+
+	assert(munmap((void *)low, size) == 0);
+	printf("Unmapped VDSO\n");
+
+	// Confirm the VDSO is not mapped anymore
+	assert(search_proc_maps("[vdso]", &low, &high) != 0);
+
+	// Make the stack executable
+	assert(search_proc_maps("[stack]", &low, &high) == 0);
+	size = high - low + 1;
+	mprotect((void *)low, size, PROT_READ|PROT_WRITE|PROT_EXEC);
+	printf("Remapped the stack executable\n");
+
+	kill(getpid(), SIGUSR1);
+	assert(took_signal == 3);
+	printf("Signal delivered OK with VDSO unmapped\n");
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_sigreturn_vdso, "sigreturn_vdso");
+}
diff --git a/tools/testing/selftests/powerpc/stringloops/.gitignore b/tools/testing/selftests/powerpc/stringloops/.gitignore
index 0b43da74ee46..b0dfc74aa57e 100644
--- a/tools/testing/selftests/powerpc/stringloops/.gitignore
+++ b/tools/testing/selftests/powerpc/stringloops/.gitignore
@@ -1 +1,5 @@
-memcmp
+# SPDX-License-Identifier: GPL-2.0-only
+memcmp_64
+memcmp_32
+strlen
+strlen_32
diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile
index 2a728f4d2873..4c9d9a58c9d1 100644
--- a/tools/testing/selftests/powerpc/stringloops/Makefile
+++ b/tools/testing/selftests/powerpc/stringloops/Makefile
@@ -1,15 +1,36 @@
-# The loops are all 64-bit code
-CFLAGS += -m64
-CFLAGS += -I$(CURDIR)
+# SPDX-License-Identifier: GPL-2.0
+EXTRA_SOURCES := ../harness.c
+
+build_32bit = $(shell if ($(CC) $(CFLAGS) -m32 -o /dev/null memcmp.c >/dev/null 2>&1) then echo "1"; fi)
+
+TEST_GEN_PROGS := memcmp_64 strlen
+
+$(OUTPUT)/memcmp_64: memcmp.c ../utils.c
+$(OUTPUT)/memcmp_64: CFLAGS += -m64 -maltivec
+
+ifeq ($(build_32bit),1)
+$(OUTPUT)/memcmp_32: memcmp.c
+$(OUTPUT)/memcmp_32: CFLAGS += -m32
 
-TEST_PROGS := memcmp
-EXTRA_SOURCES := memcmp_64.S ../harness.c
+TEST_GEN_PROGS += memcmp_32
+endif
 
-all: $(TEST_PROGS)
+$(OUTPUT)/strlen: strlen.c string.c
 
-$(TEST_PROGS): $(EXTRA_SOURCES)
+ifeq ($(build_32bit),1)
+$(OUTPUT)/strlen_32: strlen.c
+$(OUTPUT)/strlen_32: CFLAGS += -m32
 
+TEST_GEN_PROGS += strlen_32
+endif
+
+top_srcdir = ../../../../..
 include ../../lib.mk
+include ../flags.mk
+
+# The loops are all 64-bit code
+CFLAGS += -I$(CURDIR)
+
+ASFLAGS = $(CFLAGS)
 
-clean:
-	rm -f $(TEST_PROGS) *.o
+$(TEST_GEN_PROGS): $(EXTRA_SOURCES)
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/cache.h b/tools/testing/selftests/powerpc/stringloops/asm/cache.h
new file mode 100644
index 000000000000..8a2840831122
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/asm/cache.h
@@ -0,0 +1 @@
+#define	IFETCH_ALIGN_BYTES 4
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/ppc-opcode.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc-opcode.h
new file mode 100644
index 000000000000..3edd1a1d9128
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc-opcode.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2009 Freescale Semiconductor, Inc.
+ *
+ * provides masks and opcode images for use by code generation, emulation
+ * and for instructions that older assemblers might not know about
+ */
+#ifndef _ASM_POWERPC_PPC_OPCODE_H
+#define _ASM_POWERPC_PPC_OPCODE_H
+
+
+#  define stringify_in_c(...)	__VA_ARGS__
+#  define ASM_CONST(x)		x
+
+
+#define PPC_INST_VCMPEQUD_RC		0x100000c7
+#define PPC_INST_VCMPEQUB_RC		0x10000006
+
+#define __PPC_RC21     (0x1 << 10)
+
+/* macros to insert fields into opcodes */
+#define ___PPC_RA(a)	(((a) & 0x1f) << 16)
+#define ___PPC_RB(b)	(((b) & 0x1f) << 11)
+#define ___PPC_RS(s)	(((s) & 0x1f) << 21)
+#define ___PPC_RT(t)	___PPC_RS(t)
+
+#define VCMPEQUD_RC(vrt, vra, vrb)	stringify_in_c(.long PPC_INST_VCMPEQUD_RC | \
+			      ___PPC_RT(vrt) | ___PPC_RA(vra) | \
+			      ___PPC_RB(vrb) | __PPC_RC21)
+
+#define VCMPEQUB_RC(vrt, vra, vrb)	stringify_in_c(.long PPC_INST_VCMPEQUB_RC | \
+			      ___PPC_RT(vrt) | ___PPC_RA(vra) | \
+			      ___PPC_RB(vrb) | __PPC_RC21)
+
+#endif /* _ASM_POWERPC_PPC_OPCODE_H */
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
index 11bece87e880..e713b69d694a 100644
--- a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
@@ -1,3 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PPC_ASM_H
+#define _PPC_ASM_H
 #include <ppc-asm.h>
 
 #ifndef r1
@@ -5,3 +8,27 @@
 #endif
 
 #define _GLOBAL(A) FUNC_START(test_ ## A)
+#define _GLOBAL_TOC(A) FUNC_START(test_ ## A)
+#define CFUNC(name) name
+
+#define CONFIG_ALTIVEC
+
+#define R14 r14
+#define R15 r15
+#define R16 r16
+#define R17 r17
+#define R18 r18
+#define R19 r19
+#define R20 r20
+#define R21 r21
+#define R22 r22
+#define R29 r29
+#define R30 r30
+#define R31 r31
+
+#define STACKFRAMESIZE	256
+#define STK_REG(i)	(112 + ((i)-14)*8)
+
+#define BEGIN_FTR_SECTION
+#define END_FTR_SECTION_IFSET(val)
+#endif
diff --git a/tools/testing/selftests/powerpc/stringloops/linux/export.h b/tools/testing/selftests/powerpc/stringloops/linux/export.h
new file mode 100644
index 000000000000..2d14a9b4248c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/linux/export.h
@@ -0,0 +1 @@
+#define EXPORT_SYMBOL(x)
diff --git a/tools/testing/selftests/powerpc/stringloops/memcmp.c b/tools/testing/selftests/powerpc/stringloops/memcmp.c
index 17417dd70708..cb2f18855c8d 100644
--- a/tools/testing/selftests/powerpc/stringloops/memcmp.c
+++ b/tools/testing/selftests/powerpc/stringloops/memcmp.c
@@ -1,20 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <malloc.h>
 #include <stdlib.h>
 #include <string.h>
-#include "../utils.h"
+#include <sys/mman.h>
+#include <time.h>
+
+#include "utils.h"
 
 #define SIZE 256
 #define ITERATIONS 10000
 
+#define LARGE_SIZE (5 * 1024)
+#define LARGE_ITERATIONS 1000
+#define LARGE_MAX_OFFSET 32
+#define LARGE_SIZE_START 4096
+
+/* This is big enough to fit LARGE_SIZE and works on 4K & 64K kernels */
+#define MAP_SIZE (64 * 1024)
+
+#define MAX_OFFSET_DIFF_S1_S2 48
+
+int vmx_count;
+int enter_vmx_ops(void)
+{
+	vmx_count++;
+	return 1;
+}
+
+void exit_vmx_ops(void)
+{
+	vmx_count--;
+}
 int test_memcmp(const void *s1, const void *s2, size_t n);
 
 /* test all offsets and lengths */
-static void test_one(char *s1, char *s2)
+static void test_one(char *s1, char *s2, unsigned long max_offset,
+		unsigned long size_start, unsigned long max_size)
 {
 	unsigned long offset, size;
 
-	for (offset = 0; offset < SIZE; offset++) {
-		for (size = 0; size < (SIZE-offset); size++) {
+	for (offset = 0; offset < max_offset; offset++) {
+		for (size = size_start; size < (max_size - offset); size++) {
 			int x, y;
 			unsigned long i;
 
@@ -34,70 +60,110 @@ static void test_one(char *s1, char *s2)
 				printf("\n");
 				abort();
 			}
+
+			if (vmx_count != 0) {
+				printf("vmx enter/exit not paired.(offset:%ld size:%ld s1:%p s2:%p vc:%d\n",
+					offset, size, s1, s2, vmx_count);
+				printf("\n");
+				abort();
+			}
 		}
 	}
 }
 
-static int testcase(void)
+static int testcase(bool islarge)
 {
-	char *s1;
-	char *s2;
-	unsigned long i;
-
-	s1 = memalign(128, SIZE);
-	if (!s1) {
-		perror("memalign");
-		exit(1);
-	}
+	unsigned long i, comp_size, alloc_size;
+	char *p, *s1, *s2;
+	int iterations;
 
-	s2 = memalign(128, SIZE);
-	if (!s2) {
-		perror("memalign");
-		exit(1);
-	}
+	comp_size = (islarge ? LARGE_SIZE : SIZE);
+	alloc_size = comp_size + MAX_OFFSET_DIFF_S1_S2;
+	iterations = islarge ? LARGE_ITERATIONS : ITERATIONS;
+
+	p = mmap(NULL, 4 * MAP_SIZE, PROT_READ | PROT_WRITE,
+		 MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	FAIL_IF(p == MAP_FAILED);
+
+	/* Put s1/s2 at the end of a page */
+	s1 = p + MAP_SIZE - alloc_size;
+	s2 = p + 3 * MAP_SIZE - alloc_size;
+
+	/* And unmap the subsequent page to force a fault if we overread */
+	munmap(p + MAP_SIZE, MAP_SIZE);
+	munmap(p + 3 * MAP_SIZE, MAP_SIZE);
 
-	srandom(1);
+	srandom(time(0));
 
-	for (i = 0; i < ITERATIONS; i++) {
+	for (i = 0; i < iterations; i++) {
 		unsigned long j;
 		unsigned long change;
+		char *rand_s1 = s1;
+		char *rand_s2 = s2;
 
-		for (j = 0; j < SIZE; j++)
+		for (j = 0; j < alloc_size; j++)
 			s1[j] = random();
 
-		memcpy(s2, s1, SIZE);
+		rand_s1 += random() % MAX_OFFSET_DIFF_S1_S2;
+		rand_s2 += random() % MAX_OFFSET_DIFF_S1_S2;
+		memcpy(rand_s2, rand_s1, comp_size);
 
 		/* change one byte */
-		change = random() % SIZE;
-		s2[change] = random() & 0xff;
-
-		test_one(s1, s2);
+		change = random() % comp_size;
+		rand_s2[change] = random() & 0xff;
+
+		if (islarge)
+			test_one(rand_s1, rand_s2, LARGE_MAX_OFFSET,
+					LARGE_SIZE_START, comp_size);
+		else
+			test_one(rand_s1, rand_s2, SIZE, 0, comp_size);
 	}
 
-	srandom(1);
+	srandom(time(0));
 
-	for (i = 0; i < ITERATIONS; i++) {
+	for (i = 0; i < iterations; i++) {
 		unsigned long j;
 		unsigned long change;
+		char *rand_s1 = s1;
+		char *rand_s2 = s2;
 
-		for (j = 0; j < SIZE; j++)
+		for (j = 0; j < alloc_size; j++)
 			s1[j] = random();
 
-		memcpy(s2, s1, SIZE);
+		rand_s1 += random() % MAX_OFFSET_DIFF_S1_S2;
+		rand_s2 += random() % MAX_OFFSET_DIFF_S1_S2;
+		memcpy(rand_s2, rand_s1, comp_size);
 
 		/* change multiple bytes, 1/8 of total */
-		for (j = 0; j < SIZE / 8; j++) {
-			change = random() % SIZE;
+		for (j = 0; j < comp_size / 8; j++) {
+			change = random() % comp_size;
 			s2[change] = random() & 0xff;
 		}
 
-		test_one(s1, s2);
+		if (islarge)
+			test_one(rand_s1, rand_s2, LARGE_MAX_OFFSET,
+					LARGE_SIZE_START, comp_size);
+		else
+			test_one(rand_s1, rand_s2, SIZE, 0, comp_size);
 	}
 
 	return 0;
 }
 
+static int testcases(void)
+{
+#ifdef __powerpc64__
+	// vcmpequd used in memcmp_64.S is v2.07
+	SKIP_IF(!have_hwcap2(PPC_FEATURE2_ARCH_2_07));
+#endif
+
+	testcase(0);
+	testcase(1);
+	return 0;
+}
+
 int main(void)
 {
-	return test_harness(testcase, "memcmp");
+	test_harness_set_timeout(300);
+	return test_harness(testcases, "memcmp");
 }
diff --git a/tools/testing/selftests/powerpc/stringloops/memcmp_32.S b/tools/testing/selftests/powerpc/stringloops/memcmp_32.S
new file mode 120000
index 000000000000..056f2b3af789
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/memcmp_32.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/memcmp_32.S
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/stringloops/settings b/tools/testing/selftests/powerpc/stringloops/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/stringloops/string.c b/tools/testing/selftests/powerpc/stringloops/string.c
new file mode 100644
index 000000000000..45e7775415c7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/string.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copied from linux/lib/string.c
+ *
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ */
+
+#include <stddef.h>
+
+/**
+ * strlen - Find the length of a string
+ * @s: The string to be sized
+ */
+size_t test_strlen(const char *s)
+{
+	const char *sc;
+
+	for (sc = s; *sc != '\0'; ++sc)
+		/* nothing */;
+	return sc - s;
+}
diff --git a/tools/testing/selftests/powerpc/stringloops/strlen.c b/tools/testing/selftests/powerpc/stringloops/strlen.c
new file mode 100644
index 000000000000..9055ebc484d0
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/strlen.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <malloc.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "utils.h"
+
+#define SIZE 256
+#define ITERATIONS 1000
+#define ITERATIONS_BENCH 100000
+
+int test_strlen(const void *s);
+
+/* test all offsets and lengths */
+static void test_one(char *s)
+{
+	unsigned long offset;
+
+	for (offset = 0; offset < SIZE; offset++) {
+		int x, y;
+		unsigned long i;
+
+		y = strlen(s + offset);
+		x = test_strlen(s + offset);
+
+		if (x != y) {
+			printf("strlen() returned %d, should have returned %d (%p offset %ld)\n", x, y, s, offset);
+
+			for (i = offset; i < SIZE; i++)
+				printf("%02x ", s[i]);
+			printf("\n");
+		}
+	}
+}
+
+static void bench_test(char *s)
+{
+	struct timespec ts_start, ts_end;
+	int i;
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_start);
+
+	for (i = 0; i < ITERATIONS_BENCH; i++)
+		test_strlen(s);
+
+	clock_gettime(CLOCK_MONOTONIC, &ts_end);
+
+	printf("len %3.3d : time = %.6f\n", test_strlen(s), ts_end.tv_sec - ts_start.tv_sec + (ts_end.tv_nsec - ts_start.tv_nsec) / 1e9);
+}
+
+static int testcase(void)
+{
+	char *s;
+	unsigned long i;
+
+	s = memalign(128, SIZE);
+	if (!s) {
+		perror("memalign");
+		exit(1);
+	}
+
+	srandom(1);
+
+	memset(s, 0, SIZE);
+	for (i = 0; i < SIZE; i++) {
+		char c;
+
+		do {
+			c = random() & 0x7f;
+		} while (!c);
+		s[i] = c;
+		test_one(s);
+	}
+
+	for (i = 0; i < ITERATIONS; i++) {
+		unsigned long j;
+
+		for (j = 0; j < SIZE; j++) {
+			char c;
+
+			do {
+				c = random() & 0x7f;
+			} while (!c);
+			s[j] = c;
+		}
+		for (j = 0; j < sizeof(long); j++) {
+			s[SIZE - 1 - j] = 0;
+			test_one(s);
+		}
+	}
+
+	for (i = 0; i < SIZE; i++) {
+		char c;
+
+		do {
+			c = random() & 0x7f;
+		} while (!c);
+		s[i] = c;
+	}
+
+	bench_test(s);
+
+	s[16] = 0;
+	bench_test(s);
+
+	s[8] = 0;
+	bench_test(s);
+
+	s[4] = 0;
+	bench_test(s);
+
+	s[3] = 0;
+	bench_test(s);
+
+	s[2] = 0;
+	bench_test(s);
+
+	s[1] = 0;
+	bench_test(s);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(testcase, "strlen");
+}
diff --git a/tools/testing/selftests/powerpc/stringloops/strlen_32.S b/tools/testing/selftests/powerpc/stringloops/strlen_32.S
new file mode 120000
index 000000000000..72b13731b24c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/stringloops/strlen_32.S
@@ -0,0 +1 @@
+../../../../../arch/powerpc/lib/strlen_32.S
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/switch_endian/.gitignore b/tools/testing/selftests/powerpc/switch_endian/.gitignore
index 89e762eab676..30e962cf84d1 100644
--- a/tools/testing/selftests/powerpc/switch_endian/.gitignore
+++ b/tools/testing/selftests/powerpc/switch_endian/.gitignore
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 switch_endian_test
 check-reversed.S
diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile
index e21d10674e54..0da2e0a74264 100644
--- a/tools/testing/selftests/powerpc/switch_endian/Makefile
+++ b/tools/testing/selftests/powerpc/switch_endian/Makefile
@@ -1,18 +1,19 @@
-TEST_PROGS := switch_endian_test
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := switch_endian_test
 
-ASFLAGS += -O2 -Wall -g -nostdlib -m64
+EXTRA_CLEAN = $(OUTPUT)/*.o $(OUTPUT)/check-reversed.S
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
 
-all: $(TEST_PROGS)
+ASFLAGS += -O2 -Wall -g -nostdlib -m64
 
-switch_endian_test: check-reversed.S
+$(OUTPUT)/switch_endian_test: ASFLAGS += -I $(OUTPUT)
+$(OUTPUT)/switch_endian_test: $(OUTPUT)/check-reversed.S
 
-check-reversed.o: check.o
+$(OUTPUT)/check-reversed.o: $(OUTPUT)/check.o
 	$(CROSS_COMPILE)objcopy -j .text --reverse-bytes=4 -O binary $< $@
 
-check-reversed.S: check-reversed.o
+$(OUTPUT)/check-reversed.S: $(OUTPUT)/check-reversed.o
 	hexdump -v -e '/1 ".byte 0x%02X\n"' $< > $@
-
-include ../../lib.mk
-
-clean:
-	rm -f $(TEST_PROGS) *.o check-reversed.S
diff --git a/tools/testing/selftests/powerpc/switch_endian/check.S b/tools/testing/selftests/powerpc/switch_endian/check.S
index e2484d2c24f4..927a5c675e83 100644
--- a/tools/testing/selftests/powerpc/switch_endian/check.S
+++ b/tools/testing/selftests/powerpc/switch_endian/check.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "common.h"
 
 /*
diff --git a/tools/testing/selftests/powerpc/switch_endian/common.h b/tools/testing/selftests/powerpc/switch_endian/common.h
index 69e399698c64..1434cbc2a6ad 100644
--- a/tools/testing/selftests/powerpc/switch_endian/common.h
+++ b/tools/testing/selftests/powerpc/switch_endian/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <ppc-asm.h>
 #include <asm/unistd.h>
 
diff --git a/tools/testing/selftests/powerpc/switch_endian/settings b/tools/testing/selftests/powerpc/switch_endian/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/switch_endian/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
index ef7c971abb67..7887f78cf072 100644
--- a/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
+++ b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
@@ -1,14 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "common.h"
 
 	.data
 	.balign 8
-message:
+success_message:
 	.ascii "success: switch_endian_test\n\0"
 
+	.balign 8
+failure_message:
+	.ascii "failure: switch_endian_test\n\0"
+
 	.section ".toc"
 	.balign 8
 pattern:
-	.llong 0x5555AAAA5555AAAA
+	.8byte 0x5555AAAA5555AAAA
 
 	.text
 FUNC_START(_start)
@@ -63,6 +68,9 @@ FUNC_START(_start)
 	li r0, __NR_switch_endian
 	sc
 
+	tdi   0, 0, 0x48	// b +8 if the endian was switched
+	b     .Lfail	  	// exit if endian didn't switch
+
 #include "check-reversed.S"
 
 	/* Flip back, r0 already has the switch syscall number */
@@ -70,12 +78,20 @@ FUNC_START(_start)
 
 #include "check.S"
 
+	ld	r4, success_message@got(%r2)
+	li	r5, 28	// strlen(success_message)
+	li	r14, 0	// exit status
+.Lout:
 	li	r0, __NR_write
 	li	r3, 1	/* stdout */
-	ld	r4, message@got(%r2)
-	li	r5, 28	/* strlen(message3) */
 	sc
 	li      r0, __NR_exit
-	li	r3, 0
+	mr	r3, r14
 	sc
 	b       .
+
+.Lfail:
+	ld	r4, failure_message@got(%r2)
+	li	r5, 28	// strlen(failure_message)
+	li	r14, 1
+	b	.Lout
diff --git a/tools/testing/selftests/powerpc/syscalls/.gitignore b/tools/testing/selftests/powerpc/syscalls/.gitignore
new file mode 100644
index 000000000000..a1e19ccdef84
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+ipc_unmuxed
+rtas_filter
diff --git a/tools/testing/selftests/powerpc/syscalls/Makefile b/tools/testing/selftests/powerpc/syscalls/Makefile
new file mode 100644
index 000000000000..3bc07af88f0e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0-only
+TEST_GEN_PROGS := ipc_unmuxed rtas_filter
+
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
+
+CFLAGS += $(KHDR_INCLUDES)
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
diff --git a/tools/testing/selftests/powerpc/syscalls/ipc.h b/tools/testing/selftests/powerpc/syscalls/ipc.h
new file mode 100644
index 000000000000..26a20682c9a4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/ipc.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifdef __NR_semop
+DO_TEST(semop, __NR_semop)
+#endif
+
+#ifdef __NR_semget
+DO_TEST(semget, __NR_semget)
+#endif
+
+#ifdef __NR_semctl
+DO_TEST(semctl, __NR_semctl)
+#endif
+
+#ifdef __NR_semtimedop
+DO_TEST(semtimedop, __NR_semtimedop)
+#endif
+
+#ifdef __NR_msgsnd
+DO_TEST(msgsnd, __NR_msgsnd)
+#endif
+
+#ifdef __NR_msgrcv
+DO_TEST(msgrcv, __NR_msgrcv)
+#endif
+
+#ifdef __NR_msgget
+DO_TEST(msgget, __NR_msgget)
+#endif
+
+#ifdef __NR_msgctl
+DO_TEST(msgctl, __NR_msgctl)
+#endif
+
+#ifdef __NR_shmat
+DO_TEST(shmat, __NR_shmat)
+#endif
+
+#ifdef __NR_shmdt
+DO_TEST(shmdt, __NR_shmdt)
+#endif
+
+#ifdef __NR_shmget
+DO_TEST(shmget, __NR_shmget)
+#endif
+
+#ifdef __NR_shmctl
+DO_TEST(shmctl, __NR_shmctl)
+#endif
diff --git a/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c b/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c
new file mode 100644
index 000000000000..4c582524aeb3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/ipc_unmuxed.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2015, Michael Ellerman, IBM Corp.
+ *
+ * This test simply tests that certain syscalls are implemented. It doesn't
+ * actually exercise their logic in any way.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+#include "utils.h"
+
+
+#define DO_TEST(_name, _num)	\
+static int test_##_name(void)			\
+{						\
+	int rc;					\
+	printf("Testing " #_name);		\
+	errno = 0;				\
+	rc = syscall(_num, -1, 0, 0, 0, 0, 0);	\
+	printf("\treturned %d, errno %d\n", rc, errno); \
+	return errno == ENOSYS;			\
+}
+
+#include "ipc.h"
+#undef DO_TEST
+
+static int ipc_unmuxed(void)
+{
+	int tests_done = 0;
+
+#define DO_TEST(_name, _num)		\
+	FAIL_IF(test_##_name());	\
+	tests_done++;
+
+#include "ipc.h"
+#undef DO_TEST
+
+	/*
+	 * If we ran no tests then it means none of the syscall numbers were
+	 * defined, possibly because we were built against old headers. But it
+	 * means we didn't really test anything, so instead of passing mark it
+	 * as a skip to give the user a clue.
+	 */
+	SKIP_IF(tests_done == 0);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(ipc_unmuxed, "ipc_unmuxed");
+}
diff --git a/tools/testing/selftests/powerpc/syscalls/rtas_filter.c b/tools/testing/selftests/powerpc/syscalls/rtas_filter.c
new file mode 100644
index 000000000000..9b17780f0b18
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/rtas_filter.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2005-2020 IBM Corporation.
+ *
+ * Includes code from librtas (https://github.com/ibm-power-utilities/librtas/)
+ */
+
+#include <byteswap.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <linux/limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+#include "utils.h"
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define cpu_to_be32(x)		bswap_32(x)
+#define be32_to_cpu(x)		bswap_32(x)
+#else
+#define cpu_to_be32(x)		(x)
+#define be32_to_cpu(x)		(x)
+#endif
+
+#define RTAS_IO_ASSERT	-1098	/* Unexpected I/O Error */
+#define RTAS_UNKNOWN_OP -1099	/* No Firmware Implementation of Function */
+#define BLOCK_SIZE 4096
+#define PAGE_SIZE 4096
+#define MAX_PAGES 64
+
+static const char *ofdt_rtas_path = "/proc/device-tree/rtas";
+
+typedef __be32 uint32_t;
+struct rtas_args {
+	__be32 token;
+	__be32 nargs;
+	__be32 nret;
+	__be32 args[16];
+	__be32 *rets;	  /* Pointer to return values in args[]. */
+};
+
+struct region {
+	uint64_t addr;
+	uint32_t size;
+	struct region *next;
+};
+
+static int get_property(const char *prop_path, const char *prop_name,
+			char **prop_val, size_t *prop_len)
+{
+	char path[PATH_MAX];
+
+	int len = snprintf(path, sizeof(path), "%s/%s", prop_path, prop_name);
+	if (len < 0 || len >= sizeof(path))
+		return -ENOMEM;
+
+	return read_file_alloc(path, prop_val, prop_len);
+}
+
+int rtas_token(const char *call_name)
+{
+	char *prop_buf = NULL;
+	size_t len;
+	int rc;
+
+	rc = get_property(ofdt_rtas_path, call_name, &prop_buf, &len);
+	if (rc < 0) {
+		rc = RTAS_UNKNOWN_OP;
+		goto err;
+	}
+
+	rc = be32_to_cpu(*(int *)prop_buf);
+
+err:
+	free(prop_buf);
+	return rc;
+}
+
+static int read_kregion_bounds(struct region *kregion)
+{
+	char *buf;
+	int err;
+
+	err = read_file_alloc("/proc/ppc64/rtas/rmo_buffer", &buf, NULL);
+	if (err) {
+		perror("Could not open rmo_buffer file");
+		return RTAS_IO_ASSERT;
+	}
+
+	sscanf(buf, "%" SCNx64 " %x", &kregion->addr, &kregion->size);
+	free(buf);
+
+	if (!(kregion->size && kregion->addr) ||
+	    (kregion->size > (PAGE_SIZE * MAX_PAGES))) {
+		printf("Unexpected kregion bounds\n");
+		return RTAS_IO_ASSERT;
+	}
+
+	return 0;
+}
+
+static int rtas_call(const char *name, int nargs,
+		     int nrets, ...)
+{
+	struct rtas_args args;
+	__be32 *rets[16];
+	int i, rc, token;
+	va_list ap;
+
+	va_start(ap, nrets);
+
+	token = rtas_token(name);
+	if (token == RTAS_UNKNOWN_OP) {
+		// We don't care if the call doesn't exist
+		printf("call '%s' not available, skipping...", name);
+		rc = RTAS_UNKNOWN_OP;
+		goto err;
+	}
+
+	args.token = cpu_to_be32(token);
+	args.nargs = cpu_to_be32(nargs);
+	args.nret = cpu_to_be32(nrets);
+
+	for (i = 0; i < nargs; i++)
+		args.args[i] = (__be32) va_arg(ap, unsigned long);
+
+	for (i = 0; i < nrets; i++)
+		rets[i] = (__be32 *) va_arg(ap, unsigned long);
+
+	rc = syscall(__NR_rtas, &args);
+	if (rc) {
+		rc = -errno;
+		goto err;
+	}
+
+	if (nrets) {
+		*(rets[0]) = be32_to_cpu(args.args[nargs]);
+
+		for (i = 1; i < nrets; i++) {
+			*(rets[i]) = args.args[nargs + i];
+		}
+	}
+
+err:
+	va_end(ap);
+	return rc;
+}
+
+static int test(void)
+{
+	struct region rmo_region;
+	uint32_t rmo_start;
+	uint32_t rmo_end;
+	__be32 rets[1];
+	int rc;
+
+	// Test a legitimate harmless call
+	// Expected: call succeeds
+	printf("Test a permitted call, no parameters... ");
+	rc = rtas_call("get-time-of-day", 0, 1, rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != 0 && rc != RTAS_UNKNOWN_OP);
+
+	// Test a prohibited call
+	// Expected: call returns -EINVAL
+	printf("Test a prohibited call... ");
+	rc = rtas_call("nvram-fetch", 0, 1, rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != -EINVAL && rc != RTAS_UNKNOWN_OP);
+
+	// Get RMO
+	rc = read_kregion_bounds(&rmo_region);
+	if (rc) {
+		printf("Couldn't read RMO region bounds, skipping remaining cases\n");
+		return 0;
+	}
+	rmo_start = rmo_region.addr;
+	rmo_end = rmo_start + rmo_region.size - 1;
+	printf("RMO range: %08x - %08x\n", rmo_start, rmo_end);
+
+	// Test a permitted call, user-supplied size, buffer inside RMO
+	// Expected: call succeeds
+	printf("Test a permitted call, user-supplied size, buffer inside RMO... ");
+	rc = rtas_call("ibm,get-system-parameter", 3, 1, 0, cpu_to_be32(rmo_start),
+		       cpu_to_be32(rmo_end - rmo_start + 1), rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != 0 && rc != RTAS_UNKNOWN_OP);
+
+	// Test a permitted call, user-supplied size, buffer start outside RMO
+	// Expected: call returns -EINVAL
+	printf("Test a permitted call, user-supplied size, buffer start outside RMO... ");
+	rc = rtas_call("ibm,get-system-parameter", 3, 1, 0, cpu_to_be32(rmo_end + 1),
+		       cpu_to_be32(4000), rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != -EINVAL && rc != RTAS_UNKNOWN_OP);
+
+	// Test a permitted call, user-supplied size, buffer end outside RMO
+	// Expected: call returns -EINVAL
+	printf("Test a permitted call, user-supplied size, buffer end outside RMO... ");
+	rc = rtas_call("ibm,get-system-parameter", 3, 1, 0, cpu_to_be32(rmo_start),
+		       cpu_to_be32(rmo_end - rmo_start + 2), rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != -EINVAL && rc != RTAS_UNKNOWN_OP);
+
+	// Test a permitted call, fixed size, buffer end outside RMO
+	// Expected: call returns -EINVAL
+	printf("Test a permitted call, fixed size, buffer end outside RMO... ");
+	rc = rtas_call("ibm,configure-connector", 2, 1, cpu_to_be32(rmo_end - 4000), 0, rets);
+	printf("rc: %d\n", rc);
+	FAIL_IF(rc != -EINVAL && rc != RTAS_UNKNOWN_OP);
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test, "rtas_filter");
+}
diff --git a/tools/testing/selftests/powerpc/syscalls/settings b/tools/testing/selftests/powerpc/syscalls/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/syscalls/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/tm/.gitignore b/tools/testing/selftests/powerpc/tm/.gitignore
index 2699635d2cd9..d8900a0c47a1 100644
--- a/tools/testing/selftests/powerpc/tm/.gitignore
+++ b/tools/testing/selftests/powerpc/tm/.gitignore
@@ -1,2 +1,22 @@
+# SPDX-License-Identifier: GPL-2.0-only
 tm-resched-dscr
 tm-syscall
+tm-signal-msr-resv
+tm-signal-stack
+tm-vmxcopy
+tm-fork
+tm-tar
+tm-tmspr
+tm-exec
+tm-signal-context-chk-fpu
+tm-signal-context-chk-gpr
+tm-signal-context-chk-vmx
+tm-signal-context-chk-vsx
+tm-signal-context-force-tm
+tm-signal-sigreturn-nt
+tm-signal-pagefault
+tm-vmx-unavail
+tm-unavailable
+tm-trap
+tm-sigreturn
+tm-poison
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 4bea62a319dc..f13f0ab36007 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,13 +1,33 @@
-TEST_PROGS := tm-resched-dscr tm-syscall
+# SPDX-License-Identifier: GPL-2.0
+SIGNAL_CONTEXT_CHK_TESTS := tm-signal-context-chk-gpr tm-signal-context-chk-fpu \
+	tm-signal-context-chk-vmx tm-signal-context-chk-vsx
 
-all: $(TEST_PROGS)
+TEST_GEN_PROGS := tm-resched-dscr tm-syscall tm-signal-msr-resv tm-signal-stack \
+	tm-vmxcopy tm-fork tm-tar tm-tmspr tm-vmx-unavail tm-unavailable tm-trap \
+	$(SIGNAL_CONTEXT_CHK_TESTS) tm-sigreturn tm-signal-sigreturn-nt \
+	tm-signal-context-force-tm tm-poison tm-signal-pagefault
 
-$(TEST_PROGS): ../harness.c
-
-tm-syscall: tm-syscall-asm.S
-tm-syscall: CFLAGS += -mhtm -I../../../../../usr/include
+TEST_FILES := settings
 
+top_srcdir = ../../../../..
 include ../../lib.mk
+include ../flags.mk
+
+$(TEST_GEN_PROGS): ../harness.c ../utils.c
+
+CFLAGS += -mhtm
+
+$(OUTPUT)/tm-syscall: tm-syscall-asm.S
+$(OUTPUT)/tm-syscall: CFLAGS += $(KHDR_INCLUDES)
+$(OUTPUT)/tm-tmspr: CFLAGS += -pthread
+$(OUTPUT)/tm-vmx-unavail: CFLAGS += -pthread -m64
+$(OUTPUT)/tm-resched-dscr: ../pmu/lib.c
+$(OUTPUT)/tm-unavailable: CFLAGS += -O0 -pthread -m64 -Wno-error=uninitialized -mvsx
+$(OUTPUT)/tm-trap: CFLAGS += -O0 -pthread -m64
+$(OUTPUT)/tm-signal-context-force-tm: CFLAGS += -pthread -m64
+$(OUTPUT)/tm-signal-pagefault: CFLAGS += -pthread -m64
+$(OUTPUT)/tm-poison: CFLAGS += -m64
 
-clean:
-	rm -f $(TEST_PROGS) *.o
+SIGNAL_CONTEXT_CHK_TESTS := $(patsubst %,$(OUTPUT)/%,$(SIGNAL_CONTEXT_CHK_TESTS))
+$(SIGNAL_CONTEXT_CHK_TESTS): tm-signal.S
+$(SIGNAL_CONTEXT_CHK_TESTS): CFLAGS += -mhtm -m64 -mvsx
diff --git a/tools/testing/selftests/powerpc/tm/settings b/tools/testing/selftests/powerpc/tm/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/powerpc/tm/tm-exec.c b/tools/testing/selftests/powerpc/tm/tm-exec.c
new file mode 100644
index 000000000000..c59919d6710d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-exec.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Syscalls can be performed provided the transactions are suspended.
+ * The exec() class of syscall is unique as a new process is loaded.
+ *
+ * It makes little sense for after an exec() call for the previously
+ * suspended transaction to still exist.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <inttypes.h>
+#include <libgen.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "utils.h"
+#include "tm.h"
+
+static char *path;
+
+static int test_exec(void)
+{
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	asm __volatile__(
+		"tbegin.;"
+		"blt    1f; "
+		"tsuspend.;"
+		"1: ;"
+		: : : "memory");
+
+	execl(path, "tm-exec", "--child", NULL);
+
+	/* Shouldn't get here */
+	perror("execl() failed");
+	return 1;
+}
+
+static int after_exec(void)
+{
+	asm __volatile__(
+		"tbegin.;"
+		"blt    1f;"
+		"tsuspend.;"
+		"1: ;"
+		: : : "memory");
+
+	FAIL_IF(failure_is_nesting());
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	path = argv[0];
+
+	if (argc > 1 && strcmp(argv[1], "--child") == 0)
+		return after_exec();
+
+	return test_harness(test_exec, "tm_exec");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-fork.c b/tools/testing/selftests/powerpc/tm/tm-fork.c
new file mode 100644
index 000000000000..c27b935f0e9f
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-fork.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ *
+ * Edited: Rashmica Gupta, Nov 2015
+ *
+ * This test does a fork syscall inside a transaction. Basic sniff test
+ * to see if we can enter the kernel during a transaction.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "utils.h"
+#include "tm.h"
+
+int test_fork(void)
+{
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	asm __volatile__(
+		"tbegin.;"
+		"blt    1f; "
+		"li     0, 2;"  /* fork syscall */
+		"sc  ;"
+		"tend.;"
+		"1: ;"
+		: : : "memory", "r0");
+	/* If we reach here, we've passed.  Otherwise we've probably crashed
+	 * the kernel */
+
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	return test_harness(test_fork, "tm_fork");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-poison.c b/tools/testing/selftests/powerpc/tm/tm-poison.c
new file mode 100644
index 000000000000..a7bbf034b5bb
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-poison.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2019, Gustavo Romero, Michael Neuling, IBM Corp.
+ *
+ * This test will spawn two processes. Both will be attached to the same
+ * CPU (CPU 0). The child will be in a loop writing to FP register f31 and
+ * VMX/VEC/Altivec register vr31 a known value, called poison, calling
+ * sched_yield syscall after to allow the parent to switch on the CPU.
+ * Parent will set f31 and vr31 to 1 and in a loop will check if f31 and
+ * vr31 remain 1 as expected until a given timeout (2m). If the issue is
+ * present child's poison will leak into parent's f31 or vr31 registers,
+ * otherwise, poison will never leak into parent's f31 and vr31 registers.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <sched.h>
+#include <sys/types.h>
+#include <signal.h>
+
+#include "tm.h"
+
+int tm_poison_test(void)
+{
+	int cpu, pid;
+	cpu_set_t cpuset;
+	uint64_t poison = 0xdeadbeefc0dec0fe;
+	uint64_t unknown = 0;
+	bool fail_fp = false;
+	bool fail_vr = false;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	cpu = pick_online_cpu();
+	FAIL_IF(cpu < 0);
+
+	// Attach both Child and Parent to the same CPU
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+	FAIL_IF(sched_setaffinity(0, sizeof(cpuset), &cpuset) != 0);
+
+	pid = fork();
+	if (!pid) {
+		/**
+		 * child
+		 */
+		while (1) {
+			sched_yield();
+			asm (
+				"mtvsrd 31, %[poison];" // f31 = poison
+				"mtvsrd 63, %[poison];" // vr31 = poison
+
+				: : [poison] "r" (poison) : );
+		}
+	}
+
+	/**
+	 * parent
+	 */
+	asm (
+		/*
+		 * Set r3, r4, and f31 to known value 1 before entering
+		 * in transaction. They won't be written after that.
+		 */
+		"       li      3, 0x1          ;"
+		"       li      4, 0x1          ;"
+		"       mtvsrd  31, 4           ;"
+
+		/*
+		 * The Time Base (TB) is a 64-bit counter register that is
+		 * independent of the CPU clock and which is incremented
+		 * at a frequency of 512000000 Hz, so every 1.953125ns.
+		 * So it's necessary 120s/0.000000001953125s = 61440000000
+		 * increments to get a 2 minutes timeout. Below we set that
+		 * value in r5 and then use r6 to track initial TB value,
+		 * updating TB values in r7 at every iteration and comparing it
+		 * to r6. When r7 (current) - r6 (initial) > 61440000000 we bail
+		 * out since for sure we spent already 2 minutes in the loop.
+		 * SPR 268 is the TB register.
+		 */
+		"       lis     5, 14           ;"
+		"       ori     5, 5, 19996     ;"
+		"       sldi    5, 5, 16        ;" // r5 = 61440000000
+
+		"       mfspr   6, 268          ;" // r6 (TB initial)
+		"1:     mfspr   7, 268          ;" // r7 (TB current)
+		"       subf    7, 6, 7         ;" // r7 - r6 > 61440000000 ?
+		"       cmpd    7, 5            ;"
+		"       bgt     3f              ;" // yes, exit
+
+		/*
+		 * Main loop to check f31
+		 */
+		"       tbegin.                 ;" // no, try again
+		"       beq     1b              ;" // restart if no timeout
+		"       mfvsrd  3, 31           ;" // read f31
+		"       cmpd    3, 4            ;" // f31 == 1 ?
+		"       bne     2f              ;" // broken :-(
+		"       tabort. 3               ;" // try another transaction
+		"2:     tend.                   ;" // commit transaction
+		"3:     mr    %[unknown], 3     ;" // record r3
+
+		: [unknown] "=r" (unknown)
+		:
+		: "cr0", "r3", "r4", "r5", "r6", "r7", "vs31"
+
+		);
+
+	/*
+	 * On leak 'unknown' will contain 'poison' value from child,
+	 * otherwise (no leak) 'unknown' will contain the same value
+	 * as r3 before entering in transactional mode, i.e. 0x1.
+	 */
+	fail_fp = unknown != 0x1;
+	if (fail_fp)
+		printf("Unknown value %#"PRIx64" leaked into f31!\n", unknown);
+	else
+		printf("Good, no poison or leaked value into FP registers\n");
+
+	asm (
+		/*
+		 * Set r3, r4, and vr31 to known value 1 before entering
+		 * in transaction. They won't be written after that.
+		 */
+		"       li      3, 0x1          ;"
+		"       li      4, 0x1          ;"
+		"       mtvsrd  63, 4           ;"
+
+		"       lis     5, 14           ;"
+		"       ori     5, 5, 19996     ;"
+		"       sldi    5, 5, 16        ;" // r5 = 61440000000
+
+		"       mfspr   6, 268          ;" // r6 (TB initial)
+		"1:     mfspr   7, 268          ;" // r7 (TB current)
+		"       subf    7, 6, 7         ;" // r7 - r6 > 61440000000 ?
+		"       cmpd    7, 5            ;"
+		"       bgt     3f              ;" // yes, exit
+
+		/*
+		 * Main loop to check vr31
+		 */
+		"       tbegin.                 ;" // no, try again
+		"       beq     1b              ;" // restart if no timeout
+		"       mfvsrd  3, 63           ;" // read vr31
+		"       cmpd    3, 4            ;" // vr31 == 1 ?
+		"       bne     2f              ;" // broken :-(
+		"       tabort. 3               ;" // try another transaction
+		"2:     tend.                   ;" // commit transaction
+		"3:     mr    %[unknown], 3     ;" // record r3
+
+		: [unknown] "=r" (unknown)
+		:
+		: "cr0", "r3", "r4", "r5", "r6", "r7", "vs63"
+
+		);
+
+	/*
+	 * On leak 'unknown' will contain 'poison' value from child,
+	 * otherwise (no leak) 'unknown' will contain the same value
+	 * as r3 before entering in transactional mode, i.e. 0x1.
+	 */
+	fail_vr = unknown != 0x1;
+	if (fail_vr)
+		printf("Unknown value %#"PRIx64" leaked into vr31!\n", unknown);
+	else
+		printf("Good, no poison or leaked value into VEC registers\n");
+
+	kill(pid, SIGKILL);
+
+	return (fail_fp | fail_vr);
+}
+
+int main(int argc, char *argv[])
+{
+	/* Test completes in about 4m */
+	test_harness_set_timeout(250);
+	return test_harness(tm_poison_test, "tm_poison_test");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
index 42d4c8caad81..85c940ae6ff8 100644
--- a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
+++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Test context switching to see if the DSCR SPR is correctly preserved
  * when within a transaction.
  *
@@ -29,36 +30,35 @@
 #include <asm/tm.h>
 
 #include "utils.h"
+#include "tm.h"
+#include "../pmu/lib.h"
 
-#define TBEGIN          ".long 0x7C00051D ;"
-#define TEND            ".long 0x7C00055D ;"
-#define TCHECK          ".long 0x7C00059C ;"
-#define TSUSPEND        ".long 0x7C0005DD ;"
-#define TRESUME         ".long 0x7C2005DD ;"
-#define SPRN_TEXASR     0x82
 #define SPRN_DSCR       0x03
 
 int test_body(void)
 {
 	uint64_t rv, dscr1 = 1, dscr2, texasr;
 
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
 	printf("Check DSCR TM context switch: ");
 	fflush(stdout);
 	for (;;) {
-		rv = 1;
 		asm __volatile__ (
 			/* set a known value into the DSCR */
 			"ld      3, %[dscr1];"
 			"mtspr   %[sprn_dscr], 3;"
 
+			"li      %[rv], 1;"
 			/* start and suspend a transaction */
-			TBEGIN
+			"tbegin.;"
 			"beq     1f;"
-			TSUSPEND
+			"tsuspend.;"
 
 			/* hard loop until the transaction becomes doomed */
 			"2: ;"
-			TCHECK
+			"tcheck 0;"
 			"bc      4, 0, 2b;"
 
 			/* record DSCR and TEXASR */
@@ -67,8 +67,8 @@ int test_body(void)
 			"mfspr   3, %[sprn_texasr];"
 			"std     3, %[texasr];"
 
-			TRESUME
-			TEND
+			"tresume.;"
+			"tend.;"
 			"li      %[rv], 0;"
 			"1: ;"
 			: [rv]"=r"(rv), [dscr2]"=m"(dscr2), [texasr]"=m"(texasr)
@@ -78,8 +78,6 @@ int test_body(void)
 		);
 		assert(rv); /* make sure the transaction aborted */
 		if ((texasr >> 56) != TM_CAUSE_RESCHED) {
-			putchar('.');
-			fflush(stdout);
 			continue;
 		}
 		if (dscr2 != dscr1) {
@@ -92,7 +90,12 @@ int test_body(void)
 	}
 }
 
-int main(void)
+static int tm_resched_dscr(void)
+{
+	return eat_cpu(test_body);
+}
+
+int main(int argc, const char *argv[])
 {
-	return test_harness(test_body, "tm_resched_dscr");
+	return test_harness(tm_resched_dscr, "tm_resched_dscr");
 }
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-fpu.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-fpu.c
new file mode 100644
index 000000000000..657d755b2905
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-fpu.c
@@ -0,0 +1,111 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Test the kernel's signal frame code.
+ *
+ * The kernel sets up two sets of ucontexts if the signal was to be
+ * delivered while the thread was in a transaction (referred too as
+ * first and second contexts).
+ * Expected behaviour is that the checkpointed state is in the user
+ * context passed to the signal handler (first context). The speculated
+ * state can be accessed with the uc_link pointer (second context).
+ *
+ * The rationale for this is that if TM unaware code (which linked
+ * against TM libs) installs a signal handler it will not know of the
+ * speculative nature of the 'live' registers and may infer the wrong
+ * thing.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+#include "tm.h"
+
+#define MAX_ATTEMPT 500000
+
+#define NV_FPU_REGS 18 /* Number of non-volatile FP registers */
+#define FPR14 14 /* First non-volatile FP register to check in f14-31 subset */
+
+long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
+
+/* Test only non-volatile registers, i.e. 18 fpr registers from f14 to f31 */
+static double fps[] = {
+	/* First context will be set with these values, i.e. non-speculative */
+	 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+	/* Second context will be set with these values, i.e. speculative */
+	-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18
+};
+
+static sig_atomic_t fail, broken;
+
+static void signal_usr1(int signum, siginfo_t *info, void *uc)
+{
+	int i;
+	ucontext_t *ucp = uc;
+	ucontext_t *tm_ucp = ucp->uc_link;
+
+	for (i = 0; i < NV_FPU_REGS; i++) {
+		/* Check first context. Print all mismatches. */
+		fail = (ucp->uc_mcontext.fp_regs[FPR14 + i] != fps[i]);
+		if (fail) {
+			broken = 1;
+			printf("FPR%d (1st context) == %g instead of %g (expected)\n",
+				FPR14 + i, ucp->uc_mcontext.fp_regs[FPR14 + i], fps[i]);
+		}
+	}
+
+	for (i = 0; i < NV_FPU_REGS; i++) {
+		/* Check second context. Print all mismatches. */
+		fail = (tm_ucp->uc_mcontext.fp_regs[FPR14 + i] != fps[NV_FPU_REGS + i]);
+		if (fail) {
+			broken = 1;
+			printf("FPR%d (2nd context) == %g instead of %g (expected)\n",
+				FPR14 + i, tm_ucp->uc_mcontext.fp_regs[FPR14 + i], fps[NV_FPU_REGS + i]);
+		}
+	}
+}
+
+static int tm_signal_context_chk_fpu()
+{
+	struct sigaction act;
+	int i;
+	long rc;
+	pid_t pid = getpid();
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	act.sa_sigaction = signal_usr1;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction sigusr1");
+		exit(1);
+	}
+
+	i = 0;
+	while (i < MAX_ATTEMPT && !broken) {
+		/*
+		 * tm_signal_self_context_load will set both first and second
+		 * contexts accordingly to the values passed through non-NULL
+		 * array pointers to it, in that case 'fps', and invoke the
+		 * signal handler installed for SIGUSR1.
+		 */
+		rc = tm_signal_self_context_load(pid, NULL, fps, NULL, NULL);
+		FAIL_IF(rc != pid);
+		i++;
+	}
+
+	return (broken);
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_context_chk_fpu, "tm_signal_context_chk_fpu");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-gpr.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-gpr.c
new file mode 100644
index 000000000000..400fa70ca71e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-gpr.c
@@ -0,0 +1,113 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Test the kernel's signal frame code.
+ *
+ * The kernel sets up two sets of ucontexts if the signal was to be
+ * delivered while the thread was in a transaction (referred too as
+ * first and second contexts).
+ * Expected behaviour is that the checkpointed state is in the user
+ * context passed to the signal handler (first context). The speculated
+ * state can be accessed with the uc_link pointer (second context).
+ *
+ * The rationale for this is that if TM unaware code (which linked
+ * against TM libs) installs a signal handler it will not know of the
+ * speculative nature of the 'live' registers and may infer the wrong
+ * thing.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+#include "tm.h"
+
+#define MAX_ATTEMPT 500000
+
+#define NV_GPR_REGS 18 /* Number of non-volatile GPR registers */
+#define R14 14 /* First non-volatile register to check in r14-r31 subset */
+
+long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
+
+static sig_atomic_t fail, broken;
+
+/* Test only non-volatile general purpose registers, i.e. r14-r31 */
+static long gprs[] = {
+	/* First context will be set with these values, i.e. non-speculative */
+	/* R14, R15, ... */
+	 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
+	/* Second context will be set with these values, i.e. speculative */
+	/* R14, R15, ... */
+	-1,-2,-3,-4,-5,-6,-7,-8,-9,-10,-11,-12,-13,-14,-15,-16,-17,-18
+};
+
+static void signal_usr1(int signum, siginfo_t *info, void *uc)
+{
+	int i;
+	ucontext_t *ucp = uc;
+	ucontext_t *tm_ucp = ucp->uc_link;
+
+	/* Check first context. Print all mismatches. */
+	for (i = 0; i < NV_GPR_REGS; i++) {
+		fail = (ucp->uc_mcontext.gp_regs[R14 + i] != gprs[i]);
+		if (fail) {
+			broken = 1;
+			printf("GPR%d (1st context) == %lu instead of %lu (expected)\n",
+				R14 + i, ucp->uc_mcontext.gp_regs[R14 + i], gprs[i]);
+		}
+	}
+
+	/* Check second context. Print all mismatches. */
+	for (i = 0; i < NV_GPR_REGS; i++) {
+		fail = (tm_ucp->uc_mcontext.gp_regs[R14 + i] != gprs[NV_GPR_REGS + i]);
+		if (fail) {
+			broken = 1;
+			printf("GPR%d (2nd context) == %lu instead of %lu (expected)\n",
+				R14 + i, tm_ucp->uc_mcontext.gp_regs[R14 + i], gprs[NV_GPR_REGS + i]);
+		}
+	}
+}
+
+static int tm_signal_context_chk_gpr()
+{
+	struct sigaction act;
+	int i;
+	long rc;
+	pid_t pid = getpid();
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	act.sa_sigaction = signal_usr1;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction sigusr1");
+		exit(1);
+	}
+
+	i = 0;
+	while (i < MAX_ATTEMPT && !broken) {
+                /*
+                 * tm_signal_self_context_load will set both first and second
+                 * contexts accordingly to the values passed through non-NULL
+                 * array pointers to it, in that case 'gprs', and invoke the
+                 * signal handler installed for SIGUSR1.
+                 */
+		rc = tm_signal_self_context_load(pid, gprs, NULL, NULL, NULL);
+		FAIL_IF(rc != pid);
+		i++;
+	}
+
+	return broken;
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_context_chk_gpr, "tm_signal_context_chk_gpr");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vmx.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vmx.c
new file mode 100644
index 000000000000..d628fd302b28
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vmx.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Test the kernel's signal frame code.
+ *
+ * The kernel sets up two sets of ucontexts if the signal was to be
+ * delivered while the thread was in a transaction (referred too as
+ * first and second contexts).
+ * Expected behaviour is that the checkpointed state is in the user
+ * context passed to the signal handler (first context). The speculated
+ * state can be accessed with the uc_link pointer (second context).
+ *
+ * The rationale for this is that if TM unaware code (which linked
+ * against TM libs) installs a signal handler it will not know of the
+ * speculative nature of the 'live' registers and may infer the wrong
+ * thing.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+#include "tm.h"
+
+#define MAX_ATTEMPT 500000
+
+#define NV_VMX_REGS 12 /* Number of non-volatile VMX registers */
+#define VMX20 20 /* First non-volatile register to check in vr20-31 subset */
+
+long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
+
+static sig_atomic_t fail, broken;
+
+/* Test only non-volatile registers, i.e. 12 vmx registers from vr20 to vr31 */
+vector int vms[] = {
+	/* First context will be set with these values, i.e. non-speculative */
+	/* VMX20     ,  VMX21      , ... */
+	{ 1, 2, 3, 4},{ 5, 6, 7, 8},{ 9,10,11,12},
+	{13,14,15,16},{17,18,19,20},{21,22,23,24},
+	{25,26,27,28},{29,30,31,32},{33,34,35,36},
+	{37,38,39,40},{41,42,43,44},{45,46,47,48},
+	/* Second context will be set with these values, i.e. speculative */
+	/* VMX20        , VMX21            , ... */
+	{ -1, -2, -3, -4},{ -5, -6, -7, -8},{ -9,-10,-11,-12},
+	{-13,-14,-15,-16},{-17,-18,-19,-20},{-21,-22,-23,-24},
+	{-25,-26,-27,-28},{-29,-30,-31,-32},{-33,-34,-35,-36},
+	{-37,-38,-39,-40},{-41,-42,-43,-44},{-45,-46,-47,-48}
+};
+
+static void signal_usr1(int signum, siginfo_t *info, void *uc)
+{
+	int i, j;
+	ucontext_t *ucp = uc;
+	ucontext_t *tm_ucp = ucp->uc_link;
+
+	for (i = 0; i < NV_VMX_REGS; i++) {
+		/* Check first context. Print all mismatches. */
+		fail = memcmp(ucp->uc_mcontext.v_regs->vrregs[VMX20 + i],
+				&vms[i], sizeof(vector int));
+		if (fail) {
+			broken = 1;
+			printf("VMX%d (1st context) == 0x", VMX20 + i);
+			/* Print actual value in first context. */
+			for (j = 0; j < 4; j++)
+				printf("%08x", ucp->uc_mcontext.v_regs->vrregs[VMX20 + i][j]);
+			printf(" instead of 0x");
+			/* Print expected value. */
+			for (j = 0; j < 4; j++)
+				printf("%08x", vms[i][j]);
+			printf(" (expected)\n");
+		}
+	}
+
+	for (i = 0; i < NV_VMX_REGS; i++)  {
+		/* Check second context. Print all mismatches. */
+		fail = memcmp(tm_ucp->uc_mcontext.v_regs->vrregs[VMX20 + i],
+				&vms[NV_VMX_REGS + i], sizeof (vector int));
+		if (fail) {
+			broken = 1;
+			printf("VMX%d (2nd context) == 0x", NV_VMX_REGS + i);
+			/* Print actual value in second context. */
+			for (j = 0; j < 4; j++)
+				printf("%08x", tm_ucp->uc_mcontext.v_regs->vrregs[VMX20 + i][j]);
+			printf(" instead of 0x");
+			/* Print expected value. */
+			for (j = 0; j < 4; j++)
+				printf("%08x", vms[NV_VMX_REGS + i][j]);
+			printf(" (expected)\n");
+		}
+	}
+}
+
+static int tm_signal_context_chk()
+{
+	struct sigaction act;
+	int i;
+	long rc;
+	pid_t pid = getpid();
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	act.sa_sigaction = signal_usr1;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction sigusr1");
+		exit(1);
+	}
+
+	i = 0;
+	while (i < MAX_ATTEMPT && !broken) {
+		/*
+		 * tm_signal_self_context_load will set both first and second
+		 * contexts accordingly to the values passed through non-NULL
+		 * array pointers to it, in that case 'vms', and invoke the
+		 * signal handler installed for SIGUSR1.
+		 */
+		rc = tm_signal_self_context_load(pid, NULL, NULL, vms, NULL);
+		FAIL_IF(rc != pid);
+		i++;
+	}
+
+	return (broken);
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_context_chk, "tm_signal_context_chk_vmx");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vsx.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vsx.c
new file mode 100644
index 000000000000..9bd869245bad
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-chk-vsx.c
@@ -0,0 +1,185 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2016, Cyril Bur, IBM Corp.
+ *
+ * Test the kernel's signal frame code.
+ *
+ * The kernel sets up two sets of ucontexts if the signal was to be
+ * delivered while the thread was in a transaction (referred too as
+ * first and second contexts).
+ * Expected behaviour is that the checkpointed state is in the user
+ * context passed to the signal handler (first context). The speculated
+ * state can be accessed with the uc_link pointer (second context).
+ *
+ * The rationale for this is that if TM unaware code (which linked
+ * against TM libs) installs a signal handler it will not know of the
+ * speculative nature of the 'live' registers and may infer the wrong
+ * thing.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include <altivec.h>
+
+#include "utils.h"
+#include "tm.h"
+
+#define MAX_ATTEMPT 500000
+
+#define NV_VSX_REGS 12 /* Number of VSX registers to check. */
+#define VSX20 20 /* First VSX register to check in vsr20-vsr31 subset */
+#define FPR20 20 /* FPR20 overlaps VSX20 most significant doubleword */
+
+long tm_signal_self_context_load(pid_t pid, long *gprs, double *fps, vector int *vms, vector int *vss);
+
+static sig_atomic_t fail, broken;
+
+/* Test only 12 vsx registers from vsr20 to vsr31 */
+vector int vsxs[] = {
+	/* First context will be set with these values, i.e. non-speculative */
+	/* VSX20     ,  VSX21      , ... */
+	{ 1, 2, 3, 4},{ 5, 6, 7, 8},{ 9,10,11,12},
+	{13,14,15,16},{17,18,19,20},{21,22,23,24},
+	{25,26,27,28},{29,30,31,32},{33,34,35,36},
+	{37,38,39,40},{41,42,43,44},{45,46,47,48},
+	/* Second context will be set with these values, i.e. speculative */
+	/* VSX20         ,  VSX21          , ... */
+	{-1, -2, -3, -4 },{-5, -6, -7, -8 },{-9, -10,-11,-12},
+	{-13,-14,-15,-16},{-17,-18,-19,-20},{-21,-22,-23,-24},
+	{-25,-26,-27,-28},{-29,-30,-31,-32},{-33,-34,-35,-36},
+	{-37,-38,-39,-40},{-41,-42,-43,-44},{-45,-46,-47,-48}
+};
+
+static void signal_usr1(int signum, siginfo_t *info, void *uc)
+{
+	int i, j;
+	uint8_t vsx[sizeof(vector int)];
+	uint8_t vsx_tm[sizeof(vector int)];
+	ucontext_t *ucp = uc;
+	ucontext_t *tm_ucp = ucp->uc_link;
+
+	/*
+	 * FP registers and VMX registers overlap the VSX registers.
+	 *
+	 * FP registers (f0-31) overlap the most significant 64 bits of VSX
+	 * registers vsr0-31, whilst VMX registers vr0-31, being 128-bit like
+	 * the VSX registers, overlap fully the other half of VSX registers,
+	 * i.e. vr0-31 overlaps fully vsr32-63.
+	 *
+	 * Due to compatibility and historical reasons (VMX/Altivec support
+	 * appeared first on the architecture), VMX registers vr0-31 (so VSX
+	 * half vsr32-63 too) are stored right after the v_regs pointer, in an
+	 * area allocated for 'vmx_reverse' array (please see
+	 * arch/powerpc/include/uapi/asm/sigcontext.h for details about the
+	 * mcontext_t structure on Power).
+	 *
+	 * The other VSX half (vsr0-31) is hence stored below vr0-31/vsr32-63
+	 * registers, but only the least significant 64 bits of vsr0-31. The
+	 * most significant 64 bits of vsr0-31 (f0-31), as it overlaps the FP
+	 * registers, is kept in fp_regs.
+	 *
+	 * v_regs is a 16 byte aligned pointer at the start of vmx_reserve
+	 * (vmx_reserve may or may not be 16 aligned) where the v_regs structure
+	 * exists, so v_regs points to where vr0-31 / vsr32-63 registers are
+	 * fully stored. Since v_regs type is elf_vrregset_t, v_regs + 1
+	 * skips all the slots used to store vr0-31 / vsr32-64 and points to
+	 * part of one VSX half, i.e. v_regs + 1 points to the least significant
+	 * 64 bits of vsr0-31. The other part of this half (the most significant
+	 * part of vsr0-31) is stored in fp_regs.
+	 *
+	 */
+	/* Get pointer to least significant doubleword of vsr0-31 */
+	long *vsx_ptr = (long *)(ucp->uc_mcontext.v_regs + 1);
+	long *tm_vsx_ptr = (long *)(tm_ucp->uc_mcontext.v_regs + 1);
+
+	/* Check first context. Print all mismatches. */
+	for (i = 0; i < NV_VSX_REGS; i++) {
+		/*
+		 * Copy VSX most significant doubleword from fp_regs and
+		 * copy VSX least significant one from 64-bit slots below
+		 * saved VMX registers.
+		 */
+		memcpy(vsx, &ucp->uc_mcontext.fp_regs[FPR20 + i], 8);
+		memcpy(vsx + 8, &vsx_ptr[VSX20 + i], 8);
+
+		fail = memcmp(vsx, &vsxs[i], sizeof(vector int));
+
+		if (fail) {
+			broken = 1;
+			printf("VSX%d (1st context) == 0x", VSX20 + i);
+			for (j = 0; j < 16; j++)
+				printf("%02x", vsx[j]);
+			printf(" instead of 0x");
+			for (j = 0; j < 4; j++)
+				printf("%08x", vsxs[i][j]);
+			printf(" (expected)\n");
+		}
+	}
+
+	/* Check second context. Print all mismatches. */
+	for (i = 0; i < NV_VSX_REGS; i++) {
+		/*
+		 * Copy VSX most significant doubleword from fp_regs and
+		 * copy VSX least significant one from 64-bit slots below
+		 * saved VMX registers.
+		 */
+		memcpy(vsx_tm, &tm_ucp->uc_mcontext.fp_regs[FPR20 + i], 8);
+		memcpy(vsx_tm + 8, &tm_vsx_ptr[VSX20 + i], 8);
+
+		fail = memcmp(vsx_tm, &vsxs[NV_VSX_REGS + i], sizeof(vector int));
+
+		if (fail) {
+			broken = 1;
+			printf("VSX%d (2nd context) == 0x", VSX20 + i);
+			for (j = 0; j < 16; j++)
+				printf("%02x", vsx_tm[j]);
+			printf(" instead of 0x");
+			for (j = 0; j < 4; j++)
+				printf("%08x", vsxs[NV_VSX_REGS + i][j]);
+			printf("(expected)\n");
+		}
+	}
+}
+
+static int tm_signal_context_chk()
+{
+	struct sigaction act;
+	int i;
+	long rc;
+	pid_t pid = getpid();
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	act.sa_sigaction = signal_usr1;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction sigusr1");
+		exit(1);
+	}
+
+	i = 0;
+	while (i < MAX_ATTEMPT && !broken) {
+               /*
+                * tm_signal_self_context_load will set both first and second
+                * contexts accordingly to the values passed through non-NULL
+                * array pointers to it, in that case 'vsxs', and invoke the
+                * signal handler installed for SIGUSR1.
+                */
+		rc = tm_signal_self_context_load(pid, NULL, NULL, NULL, vsxs);
+		FAIL_IF(rc != pid);
+		i++;
+	}
+
+	return (broken);
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_context_chk, "tm_signal_context_chk_vsx");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c b/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c
new file mode 100644
index 000000000000..0a4bc479ae39
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-context-force-tm.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018, Breno Leitao, Gustavo Romero, IBM Corp.
+ *
+ * This test raises a SIGUSR1 signal, and toggle the MSR[TS]
+ * fields at the signal handler. With MSR[TS] being set, the kernel will
+ * force a recheckpoint, which may cause a segfault when returning to
+ * user space. Since the test needs to re-run, the segfault needs to be
+ * caught and handled.
+ *
+ * In order to continue the test even after a segfault, the context is
+ * saved prior to the signal being raised, and it is restored when there is
+ * a segmentation fault. This happens for COUNT_MAX times.
+ *
+ * This test never fails (as returning EXIT_FAILURE). It either succeeds,
+ * or crash the kernel (on a buggy kernel).
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+#include <ucontext.h>
+#include <unistd.h>
+#include <sys/mman.h>
+
+#include "tm.h"
+#include "utils.h"
+#include "reg.h"
+
+#define COUNT_MAX       5000		/* Number of interactions */
+
+/*
+ * This test only runs on 64 bits system. Unsetting MSR_TS_S to avoid
+ * compilation issue on 32 bits system. There is no side effect, since the
+ * whole test will be skipped if it is not running on 64 bits system.
+ */
+#ifndef __powerpc64__
+#undef  MSR_TS_S
+#define MSR_TS_S	0
+#endif
+
+/* Setting contexts because the test will crash and we want to recover */
+ucontext_t init_context;
+
+/* count is changed in the signal handler, so it must be volatile */
+static volatile int count;
+
+void usr_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	ucontext_t *ucp = uc;
+	int ret;
+
+	/*
+	 * Allocating memory in a signal handler, and never freeing it on
+	 * purpose, forcing the heap increase, so, the memory leak is what
+	 * we want here.
+	 */
+	ucp->uc_link = mmap(NULL, sizeof(ucontext_t),
+			    PROT_READ | PROT_WRITE,
+			    MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+	if (ucp->uc_link == (void *)-1) {
+		perror("Mmap failed");
+		exit(-1);
+	}
+
+	/* Forcing the page to be allocated in a page fault */
+	ret = madvise(ucp->uc_link, sizeof(ucontext_t), MADV_DONTNEED);
+	if (ret) {
+		perror("madvise failed");
+		exit(-1);
+	}
+
+	memcpy(&ucp->uc_link->uc_mcontext, &ucp->uc_mcontext,
+		sizeof(ucp->uc_mcontext));
+
+	/* Forcing to enable MSR[TM] */
+	UCONTEXT_MSR(ucp) |= MSR_TS_S;
+
+	/*
+	 * A fork inside a signal handler seems to be more efficient than a
+	 * fork() prior to the signal being raised.
+	 */
+	if (fork() == 0) {
+		/*
+		 * Both child and parent will return, but, child returns
+		 * with count set so it will exit in the next segfault.
+		 * Parent will continue to loop.
+		 */
+		count = COUNT_MAX;
+	}
+
+	/*
+	 * If the change above does not hit the bug, it will cause a
+	 * segmentation fault, since the ck structures are NULL.
+	 */
+}
+
+void seg_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	count++;
+
+	/* Reexecute the test */
+	setcontext(&init_context);
+}
+
+void tm_trap_test(void)
+{
+	struct sigaction usr_sa, seg_sa;
+	stack_t ss;
+
+	usr_sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
+	usr_sa.sa_sigaction = usr_signal_handler;
+
+	seg_sa.sa_flags = SA_SIGINFO;
+	seg_sa.sa_sigaction = seg_signal_handler;
+
+	/*
+	 * Set initial context. Will get back here from
+	 * seg_signal_handler()
+	 */
+	getcontext(&init_context);
+
+	while (count < COUNT_MAX) {
+		/* Allocated an alternative signal stack area */
+		ss.ss_sp = mmap(NULL, SIGSTKSZ, PROT_READ | PROT_WRITE,
+				MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+		ss.ss_size = SIGSTKSZ;
+		ss.ss_flags = 0;
+
+		if (ss.ss_sp == (void *)-1) {
+			perror("mmap error\n");
+			exit(-1);
+		}
+
+		/* Force the allocation through a page fault */
+		if (madvise(ss.ss_sp, SIGSTKSZ, MADV_DONTNEED)) {
+			perror("madvise\n");
+			exit(-1);
+		}
+
+		/*
+		 * Setting an alternative stack to generate a page fault when
+		 * the signal is raised.
+		 */
+		if (sigaltstack(&ss, NULL)) {
+			perror("sigaltstack\n");
+			exit(-1);
+		}
+
+		/* The signal handler will enable MSR_TS */
+		sigaction(SIGUSR1, &usr_sa, NULL);
+		/* If it does not crash, it might segfault, avoid it to retest */
+		sigaction(SIGSEGV, &seg_sa, NULL);
+
+		raise(SIGUSR1);
+		count++;
+	}
+}
+
+int tm_signal_context_force_tm(void)
+{
+	SKIP_IF(!have_htm());
+	/*
+	 * Skipping if not running on 64 bits system, since I think it is
+	 * not possible to set mcontext's [MSR] with TS, due to it being 32
+	 * bits.
+	 */
+	SKIP_IF(!is_ppc64le());
+
+	tm_trap_test();
+
+	return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	return test_harness(tm_signal_context_force_tm, "tm_signal_context_force_tm");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-msr-resv.c b/tools/testing/selftests/powerpc/tm/tm-signal-msr-resv.c
new file mode 100644
index 000000000000..4a61e9bd12b4
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-msr-resv.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ *
+ * Test the kernel's signal return code to ensure that it doesn't
+ * crash when both the transactional and suspend MSR bits are set in
+ * the signal context.
+ *
+ * For this test, we send ourselves a SIGUSR1.  In the SIGUSR1 handler
+ * we modify the signal context to set both MSR TM S and T bits (which
+ * is "reserved" by the PowerISA). When we return from the signal
+ * handler (implicit sigreturn), the kernel should detect reserved MSR
+ * value and send us with a SIGSEGV.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <unistd.h>
+
+#include "utils.h"
+#include "tm.h"
+
+int segv_expected = 0;
+
+void signal_segv(int signum)
+{
+	if (segv_expected && (signum == SIGSEGV))
+		_exit(0);
+	_exit(1);
+}
+
+void signal_usr1(int signum, siginfo_t *info, void *uc)
+{
+	ucontext_t *ucp = uc;
+
+	/* Link tm checkpointed context to normal context */
+	ucp->uc_link = ucp;
+	/* Set all TM bits so that the context is now invalid */
+#ifdef __powerpc64__
+	ucp->uc_mcontext.gp_regs[PT_MSR] |= (7ULL << 32);
+#else
+	ucp->uc_mcontext.uc_regs->gregs[PT_MSR] |= (7ULL);
+#endif
+	/* Should segv on return becuase of invalid context */
+	segv_expected = 1;
+}
+
+int tm_signal_msr_resv()
+{
+	struct sigaction act;
+
+	SKIP_IF(!have_htm());
+
+	act.sa_sigaction = signal_usr1;
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGUSR1, &act, NULL) < 0) {
+		perror("sigaction sigusr1");
+		exit(1);
+	}
+	if (signal(SIGSEGV, signal_segv) == SIG_ERR)
+		exit(1);
+
+	raise(SIGUSR1);
+
+	/* We shouldn't get here as we exit in the segv handler */
+	return 1;
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_msr_resv, "tm_signal_msr_resv");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-pagefault.c b/tools/testing/selftests/powerpc/tm/tm-signal-pagefault.c
new file mode 100644
index 000000000000..0b84c9208d62
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-pagefault.c
@@ -0,0 +1,285 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020, Gustavo Luiz Duarte, IBM Corp.
+ *
+ * This test starts a transaction and triggers a signal, forcing a pagefault to
+ * happen when the kernel signal handling code touches the user signal stack.
+ *
+ * In order to avoid pre-faulting the signal stack memory and to force the
+ * pagefault to happen precisely in the kernel signal handling code, the
+ * pagefault handling is done in userspace using the userfaultfd facility.
+ *
+ * Further pagefaults are triggered by crafting the signal handler's ucontext
+ * to point to additional memory regions managed by the userfaultfd, so using
+ * the same mechanism used to avoid pre-faulting the signal stack memory.
+ *
+ * On failure (bug is present) kernel crashes or never returns control back to
+ * userspace. If bug is not present, tests completes almost immediately.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <linux/userfaultfd.h>
+#include <poll.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/syscall.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <signal.h>
+#include <errno.h>
+
+#include "tm.h"
+
+
+#define UF_MEM_SIZE 655360	/* 10 x 64k pages */
+
+/* Memory handled by userfaultfd */
+static char *uf_mem;
+static size_t uf_mem_offset = 0;
+
+/*
+ * Data that will be copied into the faulting pages (instead of zero-filled
+ * pages). This is used to make the test more reliable and avoid segfaulting
+ * when we return from the signal handler. Since we are making the signal
+ * handler's ucontext point to newly allocated memory, when that memory is
+ * paged-in it will contain the expected content.
+ */
+static char backing_mem[UF_MEM_SIZE];
+
+static size_t pagesize;
+
+/*
+ * Return a chunk of at least 'size' bytes of memory that will be handled by
+ * userfaultfd. If 'backing_data' is not NULL, its content will be save to
+ * 'backing_mem' and then copied into the faulting pages when the page fault
+ * is handled.
+ */
+void *get_uf_mem(size_t size, void *backing_data)
+{
+	void *ret;
+
+	if (uf_mem_offset + size > UF_MEM_SIZE) {
+		fprintf(stderr, "Requesting more uf_mem than expected!\n");
+		exit(EXIT_FAILURE);
+	}
+
+	ret = &uf_mem[uf_mem_offset];
+
+	/* Save the data that will be copied into the faulting page */
+	if (backing_data != NULL)
+		memcpy(&backing_mem[uf_mem_offset], backing_data, size);
+
+	/* Reserve the requested amount of uf_mem */
+	uf_mem_offset += size;
+	/* Keep uf_mem_offset aligned to the page size (round up) */
+	uf_mem_offset = (uf_mem_offset + pagesize - 1) & ~(pagesize - 1);
+
+	return ret;
+}
+
+void *fault_handler_thread(void *arg)
+{
+	struct uffd_msg msg;	/* Data read from userfaultfd */
+	long uffd;		/* userfaultfd file descriptor */
+	struct uffdio_copy uffdio_copy;
+	struct pollfd pollfd;
+	ssize_t nread, offset;
+
+	uffd = (long) arg;
+
+	for (;;) {
+		pollfd.fd = uffd;
+		pollfd.events = POLLIN;
+		if (poll(&pollfd, 1, -1) == -1) {
+			perror("poll() failed");
+			exit(EXIT_FAILURE);
+		}
+
+		nread = read(uffd, &msg, sizeof(msg));
+		if (nread == 0) {
+			fprintf(stderr, "read(): EOF on userfaultfd\n");
+			exit(EXIT_FAILURE);
+		}
+
+		if (nread == -1) {
+			perror("read() failed");
+			exit(EXIT_FAILURE);
+		}
+
+		/* We expect only one kind of event */
+		if (msg.event != UFFD_EVENT_PAGEFAULT) {
+			fprintf(stderr, "Unexpected event on userfaultfd\n");
+			exit(EXIT_FAILURE);
+		}
+
+		/*
+		 * We need to handle page faults in units of pages(!).
+		 * So, round faulting address down to page boundary.
+		 */
+		uffdio_copy.dst = msg.arg.pagefault.address & ~(pagesize-1);
+
+		offset = (char *) uffdio_copy.dst - uf_mem;
+		uffdio_copy.src = (unsigned long) &backing_mem[offset];
+
+		uffdio_copy.len = pagesize;
+		uffdio_copy.mode = 0;
+		uffdio_copy.copy = 0;
+		if (ioctl(uffd, UFFDIO_COPY, &uffdio_copy) == -1) {
+			perror("ioctl-UFFDIO_COPY failed");
+			exit(EXIT_FAILURE);
+		}
+	}
+}
+
+void setup_uf_mem(void)
+{
+	long uffd;		/* userfaultfd file descriptor */
+	pthread_t thr;
+	struct uffdio_api uffdio_api;
+	struct uffdio_register uffdio_register;
+	int ret;
+
+	pagesize = sysconf(_SC_PAGE_SIZE);
+
+	/* Create and enable userfaultfd object */
+	uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK);
+	if (uffd == -1) {
+		perror("userfaultfd() failed");
+		exit(EXIT_FAILURE);
+	}
+	uffdio_api.api = UFFD_API;
+	uffdio_api.features = 0;
+	if (ioctl(uffd, UFFDIO_API, &uffdio_api) == -1) {
+		perror("ioctl-UFFDIO_API failed");
+		exit(EXIT_FAILURE);
+	}
+
+	/*
+	 * Create a private anonymous mapping. The memory will be demand-zero
+	 * paged, that is, not yet allocated. When we actually touch the memory
+	 * the related page will be allocated via the userfaultfd mechanism.
+	 */
+	uf_mem = mmap(NULL, UF_MEM_SIZE, PROT_READ | PROT_WRITE,
+		      MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (uf_mem == MAP_FAILED) {
+		perror("mmap() failed");
+		exit(EXIT_FAILURE);
+	}
+
+	/*
+	 * Register the memory range of the mapping we've just mapped to be
+	 * handled by the userfaultfd object. In 'mode' we request to track
+	 * missing pages (i.e. pages that have not yet been faulted-in).
+	 */
+	uffdio_register.range.start = (unsigned long) uf_mem;
+	uffdio_register.range.len = UF_MEM_SIZE;
+	uffdio_register.mode = UFFDIO_REGISTER_MODE_MISSING;
+	if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register) == -1) {
+		perror("ioctl-UFFDIO_REGISTER");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Create a thread that will process the userfaultfd events */
+	ret = pthread_create(&thr, NULL, fault_handler_thread, (void *) uffd);
+	if (ret != 0) {
+		fprintf(stderr, "pthread_create(): Error. Returned %d\n", ret);
+		exit(EXIT_FAILURE);
+	}
+}
+
+/*
+ * Assumption: the signal was delivered while userspace was in transactional or
+ * suspended state, i.e. uc->uc_link != NULL.
+ */
+void signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	ucontext_t *ucp = uc;
+
+	/* Skip 'trap' after returning, otherwise we get a SIGTRAP again */
+	ucp->uc_link->uc_mcontext.regs->nip += 4;
+
+	ucp->uc_mcontext.v_regs =
+		get_uf_mem(sizeof(elf_vrreg_t), ucp->uc_mcontext.v_regs);
+
+	ucp->uc_link->uc_mcontext.v_regs =
+		get_uf_mem(sizeof(elf_vrreg_t), ucp->uc_link->uc_mcontext.v_regs);
+
+	ucp->uc_link = get_uf_mem(sizeof(ucontext_t), ucp->uc_link);
+}
+
+bool have_userfaultfd(void)
+{
+	long rc;
+
+	errno = 0;
+	rc = syscall(__NR_userfaultfd, -1);
+
+	return rc == 0 || errno != ENOSYS;
+}
+
+int tm_signal_pagefault(void)
+{
+	struct sigaction sa;
+	stack_t ss;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+	SKIP_IF(!have_userfaultfd());
+
+	setup_uf_mem();
+
+	/*
+	 * Set an alternative stack that will generate a page fault when the
+	 * signal is raised. The page fault will be treated via userfaultfd,
+	 * i.e. via fault_handler_thread.
+	 */
+	ss.ss_sp = get_uf_mem(SIGSTKSZ, NULL);
+	ss.ss_size = SIGSTKSZ;
+	ss.ss_flags = 0;
+	if (sigaltstack(&ss, NULL) == -1) {
+		perror("sigaltstack() failed");
+		exit(EXIT_FAILURE);
+	}
+
+	sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
+	sa.sa_sigaction = signal_handler;
+	if (sigaction(SIGTRAP, &sa, NULL) == -1) {
+		perror("sigaction() failed");
+		exit(EXIT_FAILURE);
+	}
+
+	/* Trigger a SIGTRAP in transactional state */
+	asm __volatile__(
+			"tbegin.;"
+			"beq    1f;"
+			"trap;"
+			"1: ;"
+			: : : "memory");
+
+	/* Trigger a SIGTRAP in suspended state */
+	asm __volatile__(
+			"tbegin.;"
+			"beq    1f;"
+			"tsuspend.;"
+			"trap;"
+			"tresume.;"
+			"1: ;"
+			: : : "memory");
+
+	return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	/*
+	 * Depending on kernel config, the TM Bad Thing might not result in a
+	 * crash, instead the kernel never returns control back to userspace, so
+	 * set a tight timeout. If the test passes it completes almost
+	 * immediately.
+	 */
+	test_harness_set_timeout(2);
+	return test_harness(tm_signal_pagefault, "tm_signal_pagefault");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-sigreturn-nt.c b/tools/testing/selftests/powerpc/tm/tm-signal-sigreturn-nt.c
new file mode 100644
index 000000000000..968864b052ec
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-sigreturn-nt.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2018, Breno Leitao, Gustavo Romero, IBM Corp.
+ *
+ * A test case that creates a signal and starts a suspended transaction
+ * inside the signal handler.
+ *
+ * It returns from the signal handler with the CPU at suspended state, but
+ * without setting usercontext MSR Transaction State (TS) fields.
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+
+#include "utils.h"
+#include "tm.h"
+
+void trap_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	ucontext_t *ucp = (ucontext_t *) uc;
+
+	asm("tbegin.; tsuspend.;");
+
+	/* Skip 'trap' instruction if it succeed */
+	ucp->uc_mcontext.regs->nip += 4;
+}
+
+int tm_signal_sigreturn_nt(void)
+{
+	struct sigaction trap_sa;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	trap_sa.sa_flags = SA_SIGINFO;
+	trap_sa.sa_sigaction = trap_signal_handler;
+
+	sigaction(SIGTRAP, &trap_sa, NULL);
+
+	raise(SIGTRAP);
+
+	return EXIT_SUCCESS;
+}
+
+int main(int argc, char **argv)
+{
+	return test_harness(tm_signal_sigreturn_nt, "tm_signal_sigreturn_nt");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal-stack.c b/tools/testing/selftests/powerpc/tm/tm-signal-stack.c
new file mode 100644
index 000000000000..68807aac8dd3
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal-stack.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ *
+ * Test the kernel's signal delievery code to ensure that we don't
+ * trelaim twice in the kernel signal delivery code.  This can happen
+ * if we trigger a signal when in a transaction and the stack pointer
+ * is bogus.
+ *
+ * This test case registers a SEGV handler, sets the stack pointer
+ * (r1) to NULL, starts a transaction and then generates a SEGV.  The
+ * SEGV should be handled but we exit here as the stack pointer is
+ * invalid and hance we can't sigreturn.  We only need to check that
+ * this flow doesn't crash the kernel.
+ */
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+
+#include "utils.h"
+#include "tm.h"
+
+void signal_segv(int signum)
+{
+	/* This should never actually run since stack is foobar */
+	exit(1);
+}
+
+int tm_signal_stack()
+{
+	int pid;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	pid = fork();
+	if (pid < 0)
+		exit(1);
+
+	if (pid) { /* Parent */
+		/*
+		 * It's likely the whole machine will crash here so if
+		 * the child ever exits, we are good.
+		 */
+		wait(NULL);
+		return 0;
+	}
+
+	/*
+	 * The flow here is:
+	 * 1) register a signal handler (so signal delievery occurs)
+	 * 2) make stack pointer (r1) = NULL
+	 * 3) start transaction
+	 * 4) cause segv
+	 */
+	if (signal(SIGSEGV, signal_segv) == SIG_ERR)
+		exit(1);
+	asm volatile("li 1, 0 ;"		/* stack ptr == NULL */
+		     "1:"
+		     "tbegin.;"
+		     "beq 1b ;"			/* retry forever */
+		     "tsuspend.;"
+		     "ld 2, 0(1) ;"		/* trigger segv" */
+		     : : : "memory");
+
+	/* This should never get here due to above segv */
+	return 1;
+}
+
+int main(void)
+{
+	return test_harness(tm_signal_stack, "tm_signal_stack");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-signal.S b/tools/testing/selftests/powerpc/tm/tm-signal.S
new file mode 100644
index 000000000000..c80c9136601b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-signal.S
@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2015, Cyril Bur, IBM Corp.
+ */
+
+#include "basic_asm.h"
+#include "gpr_asm.h"
+#include "fpu_asm.h"
+#include "vmx_asm.h"
+#include "vsx_asm.h"
+
+/*
+ * Large caveat here being that the caller cannot expect the
+ * signal to always be sent! The hardware can (AND WILL!) abort
+ * the transaction between the tbegin and the tsuspend (however
+ * unlikely it seems or infrequently it actually happens).
+ * You have been warned.
+ */
+/* long tm_signal_self(pid_t pid, long *gprs, double *fps, vector *vms, vector *vss); */
+FUNC_START(tm_signal_self_context_load)
+	PUSH_BASIC_STACK(512)
+	/*
+	 * Don't strictly need to save and restore as it depends on if
+	 * we're going to use them, however this reduces messy logic
+	 */
+	PUSH_VMX(STACK_FRAME_LOCAL(5,0),r8)
+	PUSH_FPU(512)
+	PUSH_NVREGS_BELOW_FPU(512)
+	std r3, STACK_FRAME_PARAM(0)(sp) /* pid */
+	std r4, STACK_FRAME_PARAM(1)(sp) /* gps */
+	std r5, STACK_FRAME_PARAM(2)(sp) /* fps */
+	std r6, STACK_FRAME_PARAM(3)(sp) /* vms */
+	std r7, STACK_FRAME_PARAM(4)(sp) /* vss */
+
+	ld r3, STACK_FRAME_PARAM(1)(sp)
+	cmpdi r3, 0
+	beq skip_gpr_lc
+	bl load_gpr
+skip_gpr_lc:
+	ld r3, STACK_FRAME_PARAM(2)(sp)
+	cmpdi	r3, 0
+	beq	skip_fpu_lc
+	bl load_fpu
+skip_fpu_lc:
+	ld r3, STACK_FRAME_PARAM(3)(sp)
+	cmpdi r3, 0
+	beq	skip_vmx_lc
+	bl load_vmx
+skip_vmx_lc:
+	ld r3, STACK_FRAME_PARAM(4)(sp)
+	cmpdi	r3, 0
+	beq	skip_vsx_lc
+	bl load_vsx
+skip_vsx_lc:
+	/*
+	 * Set r3 (return value) before tbegin. Use the pid as a known
+	 * 'all good' return value, zero is used to indicate a non-doomed
+	 * transaction.
+	 */
+	ld	r3, STACK_FRAME_PARAM(0)(sp)
+	tbegin.
+	beq	1f
+	tsuspend. /* Can't enter a syscall transactionally */
+	ld	r3, STACK_FRAME_PARAM(1)(sp)
+	cmpdi	r3, 0
+	beq skip_gpr_lt
+	/* Get the second half of the array */
+	addi	r3, r3, 8 * 18
+	bl load_gpr
+skip_gpr_lt:
+	ld r3, STACK_FRAME_PARAM(2)(sp)
+	cmpdi	r3, 0
+	beq	skip_fpu_lt
+	/* Get the second half of the array */
+	addi	r3, r3, 8 * 18
+	bl load_fpu
+skip_fpu_lt:
+	ld r3, STACK_FRAME_PARAM(3)(sp)
+	cmpdi r3, 0
+	beq	skip_vmx_lt
+	/* Get the second half of the array */
+	addi	r3, r3, 16 * 12
+	bl load_vmx
+skip_vmx_lt:
+	ld r3, STACK_FRAME_PARAM(4)(sp)
+	cmpdi	r3, 0
+	beq	skip_vsx_lt
+	/* Get the second half of the array */
+	addi	r3, r3, 16 * 12
+	bl load_vsx
+skip_vsx_lt:
+	li	r0, 37 /* sys_kill */
+	ld r3, STACK_FRAME_PARAM(0)(sp) /* pid */
+	li r4, 10 /* SIGUSR1 */
+	sc /* Taking the signal will doom the transaction */
+	tabort. 0
+	tresume. /* Be super sure we abort */
+	/*
+	 * This will cause us to resume doomed transaction and cause
+	 * hardware to cleanup, we'll end up at 1: anything between
+	 * tresume. and 1: shouldn't ever run.
+	 */
+	li r3, 0
+	1:
+	POP_VMX(STACK_FRAME_LOCAL(5,0),r4)
+	POP_FPU(512)
+	POP_NVREGS_BELOW_FPU(512)
+	POP_BASIC_STACK(512)
+	blr
+FUNC_END(tm_signal_self_context_load)
diff --git a/tools/testing/selftests/powerpc/tm/tm-sigreturn.c b/tools/testing/selftests/powerpc/tm/tm-sigreturn.c
new file mode 100644
index 000000000000..ffe4e5515f33
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-sigreturn.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Copyright 2015, Laurent Dufour, IBM Corp.
+ *
+ * Test the kernel's signal returning code to check reclaim is done if the
+ * sigreturn() is called while in a transaction (suspended since active is
+ * already dropped trough the system call path).
+ *
+ * The kernel must discard the transaction when entering sigreturn, since
+ * restoring the potential TM SPRS from the signal frame is requiring to not be
+ * in a transaction.
+ */
+
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "tm.h"
+#include "utils.h"
+
+
+void handler(int sig)
+{
+	uint64_t ret;
+
+	asm __volatile__(
+		"li             3,1             ;"
+		"tbegin.                        ;"
+		"beq            1f              ;"
+		"li             3,0             ;"
+		"tsuspend.                      ;"
+		"1:                             ;"
+		"std%X[ret]     3, %[ret]       ;"
+		: [ret] "=m"(ret)
+		:
+		: "memory", "3", "cr0");
+
+	if (ret)
+		exit(1);
+
+	/*
+	 * We return from the signal handle while in a suspended transaction
+	 */
+}
+
+
+int tm_sigreturn(void)
+{
+	struct sigaction sa;
+	uint64_t ret = 0;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+	SKIP_IF(!is_ppc64le());
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_handler = handler;
+	sigemptyset(&sa.sa_mask);
+
+	if (sigaction(SIGSEGV, &sa, NULL))
+		exit(1);
+
+	asm __volatile__(
+		"tbegin.                        ;"
+		"beq            1f              ;"
+		"li             3,0             ;"
+		"std            3,0(3)          ;" /* trigger SEGV */
+		"li             3,1             ;"
+		"std%X[ret]     3,%[ret]        ;"
+		"tend.                          ;"
+		"b              2f              ;"
+		"1:                             ;"
+		"li             3,2             ;"
+		"std%X[ret]     3,%[ret]        ;"
+		"2:                             ;"
+		: [ret] "=m"(ret)
+		:
+		: "memory", "3", "cr0");
+
+	if (ret != 2)
+		exit(1);
+
+	exit(0);
+}
+
+int main(void)
+{
+	return test_harness(tm_sigreturn, "tm_sigreturn");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
index 431f61ae2368..aed632d29fff 100644
--- a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
@@ -1,4 +1,5 @@
-#include <ppc-asm.h>
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <basic_asm.h>
 #include <asm/unistd.h>
 
 	.text
@@ -25,3 +26,38 @@ FUNC_START(getppid_tm_suspended)
 1:
 	li	r3, -1
 	blr
+
+
+.macro scv level
+	.long (0x44000001 | (\level) << 5)
+.endm
+
+FUNC_START(getppid_scv_tm_active)
+	PUSH_BASIC_STACK(0)
+	tbegin.
+	beq 1f
+	li	r0, __NR_getppid
+	scv	0
+	tend.
+	POP_BASIC_STACK(0)
+	blr
+1:
+	li	r3, -1
+	POP_BASIC_STACK(0)
+	blr
+
+FUNC_START(getppid_scv_tm_suspended)
+	PUSH_BASIC_STACK(0)
+	tbegin.
+	beq 1f
+	li	r0, __NR_getppid
+	tsuspend.
+	scv	0
+	tresume.
+	tend.
+	POP_BASIC_STACK(0)
+	blr
+1:
+	li	r3, -1
+	POP_BASIC_STACK(0)
+	blr
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall.c b/tools/testing/selftests/powerpc/tm/tm-syscall.c
index 1276e23da63b..b763354c2eb4 100644
--- a/tools/testing/selftests/powerpc/tm/tm-syscall.c
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2015, Sam Bobroff, IBM Corp.
- * Licensed under GPLv2.
  *
  * Test the kernel's system call code to ensure that a system call
  * made from within an active HTM transaction is aborted with the
@@ -13,46 +13,42 @@
 #include <unistd.h>
 #include <sys/syscall.h>
 #include <asm/tm.h>
-#include <asm/cputable.h>
-#include <linux/auxvec.h>
 #include <sys/time.h>
 #include <stdlib.h>
 
 #include "utils.h"
+#include "tm.h"
+
+#ifndef PPC_FEATURE2_SCV
+#define PPC_FEATURE2_SCV               0x00100000 /* scv syscall */
+#endif
 
 extern int getppid_tm_active(void);
 extern int getppid_tm_suspended(void);
+extern int getppid_scv_tm_active(void);
+extern int getppid_scv_tm_suspended(void);
 
 unsigned retries = 0;
 
 #define TEST_DURATION 10 /* seconds */
-#define TM_RETRIES 100
-
-long failure_code(void)
-{
-	return __builtin_get_texasru() >> 24;
-}
 
-bool failure_is_persistent(void)
-{
-	return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT;
-}
-
-bool failure_is_syscall(void)
-{
-	return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL;
-}
-
-pid_t getppid_tm(bool suspend)
+pid_t getppid_tm(bool scv, bool suspend)
 {
 	int i;
 	pid_t pid;
 
 	for (i = 0; i < TM_RETRIES; i++) {
-		if (suspend)
-			pid = getppid_tm_suspended();
-		else
-			pid = getppid_tm_active();
+		if (suspend) {
+			if (scv)
+				pid = getppid_scv_tm_suspended();
+			else
+				pid = getppid_tm_suspended();
+		} else {
+			if (scv)
+				pid = getppid_scv_tm_active();
+			else
+				pid = getppid_tm_active();
+		}
 
 		if (pid >= 0)
 			return pid;
@@ -82,8 +78,9 @@ int tm_syscall(void)
 	unsigned count = 0;
 	struct timeval end, now;
 
-	SKIP_IF(!((long)get_auxv_entry(AT_HWCAP2)
-		  & PPC_FEATURE2_HTM_NOSC));
+	SKIP_IF(!have_htm_nosc());
+	SKIP_IF(htm_is_synthetic());
+
 	setbuf(stdout, NULL);
 
 	printf("Testing transactional syscalls for %d seconds...\n", TEST_DURATION);
@@ -98,15 +95,24 @@ int tm_syscall(void)
 		 * Test a syscall within a suspended transaction and verify
 		 * that it succeeds.
 		 */
-		FAIL_IF(getppid_tm(true) == -1); /* Should succeed. */
+		FAIL_IF(getppid_tm(false, true) == -1); /* Should succeed. */
 
 		/*
 		 * Test a syscall within an active transaction and verify that
 		 * it fails with the correct failure code.
 		 */
-		FAIL_IF(getppid_tm(false) != -1);  /* Should fail... */
+		FAIL_IF(getppid_tm(false, false) != -1);  /* Should fail... */
 		FAIL_IF(!failure_is_persistent()); /* ...persistently... */
 		FAIL_IF(!failure_is_syscall());    /* ...with code syscall. */
+
+		/* Now do it all again with scv if it is available. */
+		if (have_hwcap2(PPC_FEATURE2_SCV)) {
+			FAIL_IF(getppid_tm(true, true) == -1); /* Should succeed. */
+			FAIL_IF(getppid_tm(true, false) != -1);  /* Should fail... */
+			FAIL_IF(!failure_is_persistent()); /* ...persistently... */
+			FAIL_IF(!failure_is_syscall());    /* ...with code syscall. */
+		}
+
 		gettimeofday(&now, 0);
 	}
 
diff --git a/tools/testing/selftests/powerpc/tm/tm-tar.c b/tools/testing/selftests/powerpc/tm/tm-tar.c
new file mode 100644
index 000000000000..f2a9137f3c1e
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-tar.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ * Original: Michael Neuling 19/7/2013
+ * Edited: Rashmica Gupta 01/12/2015
+ *
+ * Do some transactions, see if the tar is corrupted.
+ * If the transaction is aborted, the TAR should be rolled back to the
+ * checkpointed value before the transaction began. The value written to
+ * TAR in suspended mode should only remain in TAR if the transaction
+ * completes.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "tm.h"
+#include "utils.h"
+
+int	num_loops	= 10000;
+
+int test_tar(void)
+{
+	int i;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+	SKIP_IF(!is_ppc64le());
+
+	for (i = 0; i < num_loops; i++)
+	{
+		uint64_t result = 0;
+		asm __volatile__(
+			"li	7, 1;"
+			"mtspr	%[tar], 7;"	/* tar = 1 */
+			"tbegin.;"
+			"beq	3f;"
+			"li	4, 0x7000;"	/* Loop lots, to use time */
+			"2:;"			/* Start loop */
+			"li	7, 2;"
+			"mtspr	%[tar], 7;"	/* tar = 2 */
+			"tsuspend.;"
+			"li	7, 3;"
+			"mtspr	%[tar], 7;"	/* tar = 3 */
+			"tresume.;"
+			"subi	4, 4, 1;"
+			"cmpdi	4, 0;"
+			"bne	2b;"
+			"tend.;"
+
+			/* Transaction sucess! TAR should be 3 */
+			"mfspr  7, %[tar];"
+			"ori	%[res], 7, 4;"  // res = 3|4 = 7
+			"b	4f;"
+
+			/* Abort handler. TAR should be rolled back to 1 */
+			"3:;"
+			"mfspr  7, %[tar];"
+			"ori	%[res], 7, 8;"	// res = 1|8 = 9
+			"4:;"
+
+			: [res]"=r"(result)
+			: [tar]"i"(SPRN_TAR)
+			   : "memory", "r0", "r4", "r7");
+
+		/* If result is anything else other than 7 or 9, the tar
+		 * value must have been corrupted. */
+		if ((result != 7) && (result != 9))
+			return 1;
+	}
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	/* A low number of iterations (eg 100) can cause a false pass */
+	if (argc > 1) {
+		if (strcmp(argv[1], "-h") == 0) {
+			printf("Syntax:\n\t%s [<num loops>]\n",
+			       argv[0]);
+			return 1;
+		} else {
+			num_loops = atoi(argv[1]);
+		}
+	}
+
+	printf("Starting, %d loops\n", num_loops);
+
+	return test_harness(test_tar, "tm_tar");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-tmspr.c b/tools/testing/selftests/powerpc/tm/tm-tmspr.c
new file mode 100644
index 000000000000..dd5ddffa28b7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-tmspr.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ *
+ * Original: Michael Neuling 3/4/2014
+ * Modified: Rashmica Gupta 8/12/2015
+ *
+ * Check if any of the Transaction Memory SPRs get corrupted.
+ * - TFIAR  - stores address of location of transaction failure
+ * - TFHAR  - stores address of software failure handler (if transaction
+ *   fails)
+ * - TEXASR - lots of info about the transacion(s)
+ *
+ * (1) create more threads than cpus
+ * (2) in each thread:
+ * 	(a) set TFIAR and TFHAR a unique value
+ * 	(b) loop for awhile, continually checking to see if
+ * 	either register has been corrupted.
+ *
+ * (3) Loop:
+ * 	(a) begin transaction
+ *    	(b) abort transaction
+ *	(c) check TEXASR to see if FS has been corrupted
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <string.h>
+
+#include "utils.h"
+#include "tm.h"
+
+int	num_loops	= 1000000;
+int	passed = 1;
+
+void tfiar_tfhar(void *in)
+{
+	unsigned long tfhar, tfhar_rd, tfiar, tfiar_rd;
+	int i;
+
+	/* TFIAR: Last bit has to be high so userspace can read register */
+	tfiar = ((unsigned long)in) + 1;
+	tfiar += 2;
+	mtspr(SPRN_TFIAR, tfiar);
+
+	/* TFHAR: Last two bits are reserved */
+	tfhar = ((unsigned long)in);
+	tfhar &= ~0x3UL;
+	tfhar += 4;
+	mtspr(SPRN_TFHAR, tfhar);
+
+	for (i = 0; i < num_loops; i++)	{
+		tfhar_rd = mfspr(SPRN_TFHAR);
+		tfiar_rd = mfspr(SPRN_TFIAR);
+		if ( (tfhar != tfhar_rd) || (tfiar != tfiar_rd) ) {
+			passed = 0;
+			return;
+		}
+	}
+	return;
+}
+
+void texasr(void *in)
+{
+	unsigned long i;
+	uint64_t result = 0;
+
+	for (i = 0; i < num_loops; i++) {
+		asm __volatile__(
+			"tbegin.;"
+			"beq    3f ;"
+			"tabort. 0 ;"
+			"tend.;"
+
+			/* Abort handler */
+			"3: ;"
+			::: "memory");
+
+                /* Check the TEXASR */
+                result = mfspr(SPRN_TEXASR);
+		if ((result & TEXASR_FS) == 0) {
+			passed = 0;
+			return;
+		}
+	}
+	return;
+}
+
+int test_tmspr()
+{
+	pthread_t	*thread;
+	int	   	thread_num;
+	unsigned long	i;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	/* To cause some context switching */
+	thread_num = 10 * sysconf(_SC_NPROCESSORS_ONLN);
+
+	thread = malloc(thread_num * sizeof(pthread_t));
+	if (thread == NULL)
+		return EXIT_FAILURE;
+
+	/* Test TFIAR and TFHAR */
+	for (i = 0; i < thread_num; i += 2) {
+		if (pthread_create(&thread[i], NULL, (void *)tfiar_tfhar,
+				   (void *)i))
+			return EXIT_FAILURE;
+	}
+	/* Test TEXASR */
+	for (i = 1; i < thread_num; i += 2) {
+		if (pthread_create(&thread[i], NULL, (void *)texasr, (void *)i))
+			return EXIT_FAILURE;
+	}
+
+	for (i = 0; i < thread_num; i++) {
+		if (pthread_join(thread[i], NULL) != 0)
+			return EXIT_FAILURE;
+	}
+
+	free(thread);
+
+	if (passed)
+		return 0;
+	else
+		return 1;
+}
+
+int main(int argc, char *argv[])
+{
+	if (argc > 1) {
+		if (strcmp(argv[1], "-h") == 0) {
+			printf("Syntax:\t [<num loops>]\n");
+			return 0;
+		} else {
+			num_loops = atoi(argv[1]);
+		}
+	}
+	return test_harness(test_tmspr, "tm_tmspr");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-trap.c b/tools/testing/selftests/powerpc/tm/tm-trap.c
new file mode 100644
index 000000000000..97cb74768e30
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-trap.c
@@ -0,0 +1,334 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2017, Gustavo Romero, IBM Corp.
+ *
+ * Check if thread endianness is flipped inadvertently to BE on trap
+ * caught in TM whilst MSR.FP and MSR.VEC are zero (i.e. just after
+ * load_fp and load_vec overflowed).
+ *
+ * The issue can be checked on LE machines simply by zeroing load_fp
+ * and load_vec and then causing a trap in TM. Since the endianness
+ * changes to BE on return from the signal handler, 'nop' is
+ * thread as an illegal instruction in following sequence:
+ *	tbegin.
+ *	beq 1f
+ *	trap
+ *	tend.
+ * 1:	nop
+ *
+ * However, although the issue is also present on BE machines, it's a
+ * bit trickier to check it on BE machines because MSR.LE bit is set
+ * to zero which determines a BE endianness that is the native
+ * endianness on BE machines, so nothing notably critical happens,
+ * i.e. no illegal instruction is observed immediately after returning
+ * from the signal handler (as it happens on LE machines). Thus to test
+ * it on BE machines LE endianness is forced after a first trap and then
+ * the endianness is verified on subsequent traps to determine if the
+ * endianness "flipped back" to the native endianness (BE).
+ */
+
+#define _GNU_SOURCE
+#include <error.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <htmintrin.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+
+#include "tm.h"
+#include "utils.h"
+
+#define pr_error(error_code, format, ...) \
+	error_at_line(1, error_code, __FILE__, __LINE__, format, ##__VA_ARGS__)
+
+#define MSR_LE 1UL
+#define LE     1UL
+
+pthread_t t0_ping;
+pthread_t t1_pong;
+
+int exit_from_pong;
+
+int trap_event;
+int le;
+
+bool success;
+
+void trap_signal_handler(int signo, siginfo_t *si, void *uc)
+{
+	ucontext_t *ucp = uc;
+	uint64_t thread_endianness;
+
+	/* Get thread endianness: extract bit LE from MSR */
+	thread_endianness = MSR_LE & ucp->uc_mcontext.gp_regs[PT_MSR];
+
+	/*
+	 * Little-Endian Machine
+	 */
+
+	if (le) {
+		/* First trap event */
+		if (trap_event == 0) {
+			/* Do nothing. Since it is returning from this trap
+			 * event that endianness is flipped by the bug, so just
+			 * let the process return from the signal handler and
+			 * check on the second trap event if endianness is
+			 * flipped or not.
+			 */
+		}
+		/* Second trap event */
+		else if (trap_event == 1) {
+			/*
+			 * Since trap was caught in TM on first trap event, if
+			 * endianness was still LE (not flipped inadvertently)
+			 * after returning from the signal handler instruction
+			 * (1) is executed (basically a 'nop'), as it's located
+			 * at address of tbegin. +4 (rollback addr). As (1) on
+			 * LE endianness does in effect nothing, instruction (2)
+			 * is then executed again as 'trap', generating a second
+			 * trap event (note that in that case 'trap' is caught
+			 * not in transacional mode). On te other hand, if after
+			 * the return from the signal handler the endianness in-
+			 * advertently flipped, instruction (1) is tread as a
+			 * branch instruction, i.e. b .+8, hence instruction (3)
+			 * and (4) are executed (tbegin.; trap;) and we get sim-
+			 * ilaly on the trap signal handler, but now in TM mode.
+			 * Either way, it's now possible to check the MSR LE bit
+			 * once in the trap handler to verify if endianness was
+			 * flipped or not after the return from the second trap
+			 * event. If endianness is flipped, the bug is present.
+			 * Finally, getting a trap in TM mode or not is just
+			 * worth noting because it affects the math to determine
+			 * the offset added to the NIP on return: the NIP for a
+			 * trap caught in TM is the rollback address, i.e. the
+			 * next instruction after 'tbegin.', whilst the NIP for
+			 * a trap caught in non-transactional mode is the very
+			 * same address of the 'trap' instruction that generated
+			 * the trap event.
+			 */
+
+			if (thread_endianness == LE) {
+				/* Go to 'success', i.e. instruction (6) */
+				ucp->uc_mcontext.gp_regs[PT_NIP] += 16;
+			} else {
+				/*
+				 * Thread endianness is BE, so it flipped
+				 * inadvertently. Thus we flip back to LE and
+				 * set NIP to go to 'failure', instruction (5).
+				 */
+				ucp->uc_mcontext.gp_regs[PT_MSR] |= 1UL;
+				ucp->uc_mcontext.gp_regs[PT_NIP] += 4;
+			}
+		}
+	}
+
+	/*
+	 * Big-Endian Machine
+	 */
+
+	else {
+		/* First trap event */
+		if (trap_event == 0) {
+			/*
+			 * Force thread endianness to be LE. Instructions (1),
+			 * (3), and (4) will be executed, generating a second
+			 * trap in TM mode.
+			 */
+			ucp->uc_mcontext.gp_regs[PT_MSR] |= 1UL;
+		}
+		/* Second trap event */
+		else if (trap_event == 1) {
+			/*
+			 * Do nothing. If bug is present on return from this
+			 * second trap event endianness will flip back "automat-
+			 * ically" to BE, otherwise thread endianness will
+			 * continue to be LE, just as it was set above.
+			 */
+		}
+		/* A third trap event */
+		else {
+			/*
+			 * Once here it means that after returning from the sec-
+			 * ond trap event instruction (4) (trap) was executed
+			 * as LE, generating a third trap event. In that case
+			 * endianness is still LE as set on return from the
+			 * first trap event, hence no bug. Otherwise, bug
+			 * flipped back to BE on return from the second trap
+			 * event and instruction (4) was executed as 'tdi' (so
+			 * basically a 'nop') and branch to 'failure' in
+			 * instruction (5) was taken to indicate failure and we
+			 * never get here.
+			 */
+
+			/*
+			 * Flip back to BE and go to instruction (6), i.e. go to
+			 * 'success'.
+			 */
+			ucp->uc_mcontext.gp_regs[PT_MSR] &= ~1UL;
+			ucp->uc_mcontext.gp_regs[PT_NIP] += 8;
+		}
+	}
+
+	trap_event++;
+}
+
+void usr1_signal_handler(int signo, siginfo_t *si, void *not_used)
+{
+	/* Got a USR1 signal from ping(), so just tell pong() to exit */
+	exit_from_pong = 1;
+}
+
+void *ping(void *not_used)
+{
+	uint64_t i;
+
+	trap_event = 0;
+
+	/*
+	 * Wait an amount of context switches so load_fp and load_vec overflows
+	 * and MSR_[FP|VEC|V] is 0.
+	 */
+	for (i = 0; i < 1024*1024*512; i++)
+		;
+
+	asm goto(
+		/*
+		 * [NA] means "Native Endianness", i.e. it tells how a
+		 * instruction is executed on machine's native endianness (in
+		 * other words, native endianness matches kernel endianness).
+		 * [OP] means "Opposite Endianness", i.e. on a BE machine, it
+		 * tells how a instruction is executed as a LE instruction; con-
+		 * versely, on a LE machine, it tells how a instruction is
+		 * executed as a BE instruction. When [NA] is omitted, it means
+		 * that the native interpretation of a given instruction is not
+		 * relevant for the test. Likewise when [OP] is omitted.
+		 */
+
+		" tbegin.        ;" /* (0) tbegin. [NA]                    */
+		" tdi  0, 0, 0x48;" /* (1) nop     [NA]; b (3) [OP]        */
+		" trap           ;" /* (2) trap    [NA]                    */
+		".long 0x1D05007C;" /* (3) tbegin. [OP]                    */
+		".long 0x0800E07F;" /* (4) trap    [OP]; nop   [NA]        */
+		" b %l[failure]  ;" /* (5) b [NA]; MSR.LE flipped (bug)    */
+		" b %l[success]  ;" /* (6) b [NA]; MSR.LE did not flip (ok)*/
+
+		: : : : failure, success);
+
+failure:
+	success = false;
+	goto exit_from_ping;
+
+success:
+	success = true;
+
+exit_from_ping:
+	/* Tell pong() to exit before leaving */
+	pthread_kill(t1_pong, SIGUSR1);
+	return NULL;
+}
+
+void *pong(void *not_used)
+{
+	while (!exit_from_pong)
+		/*
+		 * Induce context switches on ping() thread
+		 * until ping() finishes its job and signs
+		 * to exit from this loop.
+		 */
+		sched_yield();
+
+	return NULL;
+}
+
+int tm_trap_test(void)
+{
+	uint16_t k = 1;
+	int cpu, rc;
+
+	pthread_attr_t attr;
+	cpu_set_t cpuset;
+
+	struct sigaction trap_sa;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	trap_sa.sa_flags = SA_SIGINFO;
+	trap_sa.sa_sigaction = trap_signal_handler;
+	sigaction(SIGTRAP, &trap_sa, NULL);
+
+	struct sigaction usr1_sa;
+
+	usr1_sa.sa_flags = SA_SIGINFO;
+	usr1_sa.sa_sigaction = usr1_signal_handler;
+	sigaction(SIGUSR1, &usr1_sa, NULL);
+
+	cpu = pick_online_cpu();
+	FAIL_IF(cpu < 0);
+
+	// Set only one CPU in the mask. Both threads will be bound to that CPU.
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	/* Init pthread attribute */
+	rc = pthread_attr_init(&attr);
+	if (rc)
+		pr_error(rc, "pthread_attr_init()");
+
+	/*
+	 * Bind thread ping() and pong() both to CPU 0 so they ping-pong and
+	 * speed up context switches on ping() thread, speeding up the load_fp
+	 * and load_vec overflow.
+	 */
+	rc = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+	if (rc)
+		pr_error(rc, "pthread_attr_setaffinity()");
+
+	/* Figure out the machine endianness */
+	le = (int) *(uint8_t *)&k;
+
+	printf("%s machine detected. Checking if endianness flips %s",
+		le ? "Little-Endian" : "Big-Endian",
+		"inadvertently on trap in TM... ");
+
+	rc = fflush(0);
+	if (rc)
+		pr_error(rc, "fflush()");
+
+	/* Launch ping() */
+	rc = pthread_create(&t0_ping, &attr, ping, NULL);
+	if (rc)
+		pr_error(rc, "pthread_create()");
+
+	exit_from_pong = 0;
+
+	/* Launch pong() */
+	rc = pthread_create(&t1_pong, &attr, pong, NULL);
+	if (rc)
+		pr_error(rc, "pthread_create()");
+
+	rc = pthread_join(t0_ping, NULL);
+	if (rc)
+		pr_error(rc, "pthread_join()");
+
+	rc = pthread_join(t1_pong, NULL);
+	if (rc)
+		pr_error(rc, "pthread_join()");
+
+	if (success) {
+		printf("no.\n"); /* no, endianness did not flip inadvertently */
+		return EXIT_SUCCESS;
+	}
+
+	printf("yes!\n"); /* yes, endianness did flip inadvertently */
+	return EXIT_FAILURE;
+}
+
+int main(int argc, char **argv)
+{
+	return test_harness(tm_trap_test, "tm_trap_test");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-unavailable.c b/tools/testing/selftests/powerpc/tm/tm-unavailable.c
new file mode 100644
index 000000000000..6bf1b65b020d
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-unavailable.c
@@ -0,0 +1,411 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2017, Gustavo Romero, Breno Leitao, Cyril Bur, IBM Corp.
+ *
+ * Force FP, VEC and VSX unavailable exception during transaction in all
+ * possible scenarios regarding the MSR.FP and MSR.VEC state, e.g. when FP
+ * is enable and VEC is disable, when FP is disable and VEC is enable, and
+ * so on. Then we check if the restored state is correctly set for the
+ * FP and VEC registers to the previous state we set just before we entered
+ * in TM, i.e. we check if it corrupts somehow the recheckpointed FP and
+ * VEC/Altivec registers on abortion due to an unavailable exception in TM.
+ * N.B. In this test we do not test all the FP/Altivec/VSX registers for
+ * corruption, but only for registers vs0 and vs32, which are respectively
+ * representatives of FP and VEC/Altivec reg sets.
+ */
+
+#define _GNU_SOURCE
+#include <error.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <stdbool.h>
+#include <pthread.h>
+#include <sched.h>
+
+#include "tm.h"
+
+#define DEBUG 0
+
+/* Unavailable exceptions to test in HTM */
+#define FP_UNA_EXCEPTION	0
+#define VEC_UNA_EXCEPTION	1
+#define VSX_UNA_EXCEPTION	2
+
+#define NUM_EXCEPTIONS		3
+#define err_at_line(status, errnum, format, ...) \
+	error_at_line(status, errnum,  __FILE__, __LINE__, format ##__VA_ARGS__)
+
+#define pr_warn(code, format, ...) err_at_line(0, code, format, ##__VA_ARGS__)
+#define pr_err(code, format, ...) err_at_line(1, code, format, ##__VA_ARGS__)
+
+struct Flags {
+	int touch_fp;
+	int touch_vec;
+	int result;
+	int exception;
+} flags;
+
+bool expecting_failure(void)
+{
+	if (flags.touch_fp && flags.exception == FP_UNA_EXCEPTION)
+		return false;
+
+	if (flags.touch_vec && flags.exception == VEC_UNA_EXCEPTION)
+		return false;
+
+	/*
+	 * If both FP and VEC are touched it does not mean that touching VSX
+	 * won't raise an exception. However since FP and VEC state are already
+	 * correctly loaded, the transaction is not aborted (i.e.
+	 * treclaimed/trecheckpointed) and MSR.VSX is just set as 1, so a TM
+	 * failure is not expected also in this case.
+	 */
+	if ((flags.touch_fp && flags.touch_vec) &&
+	     flags.exception == VSX_UNA_EXCEPTION)
+		return false;
+
+	return true;
+}
+
+/* Check if failure occurred whilst in transaction. */
+bool is_failure(uint64_t condition_reg)
+{
+	/*
+	 * When failure handling occurs, CR0 is set to 0b1010 (0xa). Otherwise
+	 * transaction completes without failure and hence reaches out 'tend.'
+	 * that sets CR0 to 0b0100 (0x4).
+	 */
+	return ((condition_reg >> 28) & 0xa) == 0xa;
+}
+
+void *tm_una_ping(void *input)
+{
+
+	/*
+	 * Expected values for vs0 and vs32 after a TM failure. They must never
+	 * change, otherwise they got corrupted.
+	 */
+	uint64_t high_vs0 = 0x5555555555555555;
+	uint64_t low_vs0 = 0xffffffffffffffff;
+	uint64_t high_vs32 = 0x5555555555555555;
+	uint64_t low_vs32 = 0xffffffffffffffff;
+
+	/* Counter for busy wait */
+	uint64_t counter = 0x1ff000000;
+
+	/*
+	 * Variable to keep a copy of CR register content taken just after we
+	 * leave the transactional state.
+	 */
+	uint64_t cr_ = 0;
+
+	/*
+	 * Wait a bit so thread can get its name "ping". This is not important
+	 * to reproduce the issue but it's nice to have for systemtap debugging.
+	 */
+	if (DEBUG)
+		sleep(1);
+
+	printf("If MSR.FP=%d MSR.VEC=%d: ", flags.touch_fp, flags.touch_vec);
+
+	if (flags.exception != FP_UNA_EXCEPTION &&
+	    flags.exception != VEC_UNA_EXCEPTION &&
+	    flags.exception != VSX_UNA_EXCEPTION) {
+		printf("No valid exception specified to test.\n");
+		return NULL;
+	}
+
+	asm (
+		/* Prepare to merge low and high. */
+		"	mtvsrd		33, %[high_vs0]		;"
+		"	mtvsrd		34, %[low_vs0]		;"
+
+		/*
+		 * Adjust VS0 expected value after an TM failure,
+		 * i.e. vs0 = 0x5555555555555555555FFFFFFFFFFFFFFFF
+		 */
+		"	xxmrghd		0, 33, 34		;"
+
+		/*
+		 * Adjust VS32 expected value after an TM failure,
+		 * i.e. vs32 = 0x5555555555555555555FFFFFFFFFFFFFFFF
+		 */
+		"	xxmrghd		32, 33, 34		;"
+
+		/*
+		 * Wait an amount of context switches so load_fp and load_vec
+		 * overflow and MSR.FP, MSR.VEC, and MSR.VSX become zero (off).
+		 */
+		"	mtctr		%[counter]		;"
+
+		/* Decrement CTR branch if CTR non zero. */
+		"1:	bdnz 1b					;"
+
+		/*
+		 * Check if we want to touch FP prior to the test in order
+		 * to set MSR.FP = 1 before provoking an unavailable
+		 * exception in TM.
+		 */
+		"	cmpldi		%[touch_fp], 0		;"
+		"	beq		no_fp			;"
+		"	fadd		10, 10, 10		;"
+		"no_fp:						;"
+
+		/*
+		 * Check if we want to touch VEC prior to the test in order
+		 * to set MSR.VEC = 1 before provoking an unavailable
+		 * exception in TM.
+		 */
+		"	cmpldi		%[touch_vec], 0		;"
+		"	beq		no_vec			;"
+		"	vaddcuw		10, 10, 10		;"
+		"no_vec:					;"
+
+		/*
+		 * Perhaps it would be a better idea to do the
+		 * compares outside transactional context and simply
+		 * duplicate code.
+		 */
+		"	tbegin.					;"
+		"	beq		trans_fail		;"
+
+		/* Do we do FP Unavailable? */
+		"	cmpldi		%[exception], %[ex_fp]	;"
+		"	bne		1f			;"
+		"	fadd		10, 10, 10		;"
+		"	b		done			;"
+
+		/* Do we do VEC Unavailable? */
+		"1:	cmpldi		%[exception], %[ex_vec]	;"
+		"	bne		2f			;"
+		"	vaddcuw		10, 10, 10		;"
+		"	b		done			;"
+
+		/*
+		 * Not FP or VEC, therefore VSX. Ensure this
+		 * instruction always generates a VSX Unavailable.
+		 * ISA 3.0 is tricky here.
+		 * (xxmrghd will on ISA 2.07 and ISA 3.0)
+		 */
+		"2:	xxmrghd		10, 10, 10		;"
+
+		"done:	tend. ;"
+
+		"trans_fail: ;"
+
+		/* Give values back to C. */
+		"	mfvsrd		%[high_vs0], 0		;"
+		"	xxsldwi		3, 0, 0, 2		;"
+		"	mfvsrd		%[low_vs0], 3		;"
+		"	mfvsrd		%[high_vs32], 32	;"
+		"	xxsldwi		3, 32, 32, 2		;"
+		"	mfvsrd		%[low_vs32], 3		;"
+
+		/* Give CR back to C so that it can check what happened. */
+		"	mfcr		%[cr_]		;"
+
+		: [high_vs0]  "+r" (high_vs0),
+		  [low_vs0]   "+r" (low_vs0),
+		  [high_vs32] "=r" (high_vs32),
+		  [low_vs32]  "=r" (low_vs32),
+		  [cr_]       "+r" (cr_)
+		: [touch_fp]  "r"  (flags.touch_fp),
+		  [touch_vec] "r"  (flags.touch_vec),
+		  [exception] "r"  (flags.exception),
+		  [ex_fp]     "i"  (FP_UNA_EXCEPTION),
+		  [ex_vec]    "i"  (VEC_UNA_EXCEPTION),
+		  [ex_vsx]    "i"  (VSX_UNA_EXCEPTION),
+		  [counter]   "r"  (counter)
+
+		: "cr0", "ctr", "v10", "vs0", "vs10", "vs3", "vs32", "vs33",
+		  "vs34", "fr10"
+
+		);
+
+	/*
+	 * Check if we were expecting a failure and it did not occur by checking
+	 * CR0 state just after we leave the transaction. Either way we check if
+	 * vs0 or vs32 got corrupted.
+	 */
+	if (expecting_failure() && !is_failure(cr_)) {
+		printf("\n\tExpecting the transaction to fail, %s",
+			"but it didn't\n\t");
+		flags.result++;
+	}
+
+	/* Check if we were not expecting a failure and a it occurred. */
+	if (!expecting_failure() && is_failure(cr_) &&
+	    !failure_is_reschedule()) {
+		printf("\n\tUnexpected transaction failure 0x%02lx\n\t",
+			failure_code());
+		return (void *) -1;
+	}
+
+	/*
+	 * Check if TM failed due to the cause we were expecting. 0xda is a
+	 * TM_CAUSE_FAC_UNAV cause, otherwise it's an unexpected cause, unless
+	 * it was caused by a reschedule.
+	 */
+	if (is_failure(cr_) && !failure_is_unavailable() &&
+	    !failure_is_reschedule()) {
+		printf("\n\tUnexpected failure cause 0x%02lx\n\t",
+			failure_code());
+		return (void *) -1;
+	}
+
+	/* 0x4 is a success and 0xa is a fail. See comment in is_failure(). */
+	if (DEBUG)
+		printf("CR0: 0x%1lx ", cr_ >> 28);
+
+	/* Check FP (vs0) for the expected value. */
+	if (high_vs0 != 0x5555555555555555 || low_vs0 != 0xFFFFFFFFFFFFFFFF) {
+		printf("FP corrupted!");
+			printf("  high = %#16" PRIx64 "  low = %#16" PRIx64 " ",
+				high_vs0, low_vs0);
+		flags.result++;
+	} else
+		printf("FP ok ");
+
+	/* Check VEC (vs32) for the expected value. */
+	if (high_vs32 != 0x5555555555555555 || low_vs32 != 0xFFFFFFFFFFFFFFFF) {
+		printf("VEC corrupted!");
+			printf("  high = %#16" PRIx64 "  low = %#16" PRIx64,
+				high_vs32, low_vs32);
+		flags.result++;
+	} else
+		printf("VEC ok");
+
+	putchar('\n');
+
+	return NULL;
+}
+
+/* Thread to force context switch */
+void *tm_una_pong(void *not_used)
+{
+	/* Wait thread get its name "pong". */
+	if (DEBUG)
+		sleep(1);
+
+	/* Classed as an interactive-like thread. */
+	while (1)
+		sched_yield();
+}
+
+/* Function that creates a thread and launches the "ping" task. */
+void test_fp_vec(int fp, int vec, pthread_attr_t *attr)
+{
+	int retries = 2;
+	void *ret_value;
+	pthread_t t0;
+
+	flags.touch_fp = fp;
+	flags.touch_vec = vec;
+
+	/*
+	 * Without luck it's possible that the transaction is aborted not due to
+	 * the unavailable exception caught in the middle as we expect but also,
+	 * for instance, due to a context switch or due to a KVM reschedule (if
+	 * it's running on a VM). Thus we try a few times before giving up,
+	 * checking if the failure cause is the one we expect.
+	 */
+	do {
+		int rc;
+
+		/* Bind to CPU 0, as specified in 'attr'. */
+		rc = pthread_create(&t0, attr, tm_una_ping, (void *) &flags);
+		if (rc)
+			pr_err(rc, "pthread_create()");
+		rc = pthread_setname_np(t0, "tm_una_ping");
+		if (rc)
+			pr_warn(rc, "pthread_setname_np");
+		rc = pthread_join(t0, &ret_value);
+		if (rc)
+			pr_err(rc, "pthread_join");
+
+		retries--;
+	} while (ret_value != NULL && retries);
+
+	if (!retries) {
+		flags.result = 1;
+		if (DEBUG)
+			printf("All transactions failed unexpectedly\n");
+
+	}
+}
+
+int tm_unavailable_test(void)
+{
+	int cpu, rc, exception; /* FP = 0, VEC = 1, VSX = 2 */
+	pthread_t t1;
+	pthread_attr_t attr;
+	cpu_set_t cpuset;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	cpu = pick_online_cpu();
+	FAIL_IF(cpu < 0);
+
+	// Set only one CPU in the mask. Both threads will be bound to that CPU.
+	CPU_ZERO(&cpuset);
+	CPU_SET(cpu, &cpuset);
+
+	/* Init pthread attribute. */
+	rc = pthread_attr_init(&attr);
+	if (rc)
+		pr_err(rc, "pthread_attr_init()");
+
+	/* Set CPU 0 mask into the pthread attribute. */
+	rc = pthread_attr_setaffinity_np(&attr, sizeof(cpu_set_t), &cpuset);
+	if (rc)
+		pr_err(rc, "pthread_attr_setaffinity_np()");
+
+	rc = pthread_create(&t1, &attr /* Bind to CPU 0 */, tm_una_pong, NULL);
+	if (rc)
+		pr_err(rc, "pthread_create()");
+
+	/* Name it for systemtap convenience */
+	rc = pthread_setname_np(t1, "tm_una_pong");
+	if (rc)
+		pr_warn(rc, "pthread_create()");
+
+	flags.result = 0;
+
+	for (exception = 0; exception < NUM_EXCEPTIONS; exception++) {
+		printf("Checking if FP/VEC registers are sane after");
+
+		if (exception == FP_UNA_EXCEPTION)
+			printf(" a FP unavailable exception...\n");
+
+		else if (exception == VEC_UNA_EXCEPTION)
+			printf(" a VEC unavailable exception...\n");
+
+		else
+			printf(" a VSX unavailable exception...\n");
+
+		flags.exception = exception;
+
+		test_fp_vec(0, 0, &attr);
+		test_fp_vec(1, 0, &attr);
+		test_fp_vec(0, 1, &attr);
+		test_fp_vec(1, 1, &attr);
+
+	}
+
+	if (flags.result > 0) {
+		printf("result: failed!\n");
+		exit(1);
+	} else {
+		printf("result: success\n");
+		exit(0);
+	}
+}
+
+int main(int argc, char **argv)
+{
+	test_harness_set_timeout(220);
+	return test_harness(tm_unavailable_test, "tm_unavailable_test");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c
new file mode 100644
index 000000000000..34364ed2b6b7
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-vmx-unavail.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2017, Michael Neuling, IBM Corp.
+ * Original: Breno Leitao <brenohl@br.ibm.com> &
+ *           Gustavo Bueno Romero <gromero@br.ibm.com>
+ * Edited: Michael Neuling
+ *
+ * Force VMX unavailable during a transaction and see if it corrupts
+ * the checkpointed VMX register state after the abort.
+ */
+
+#include <inttypes.h>
+#include <htmintrin.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <pthread.h>
+#include <sys/mman.h>
+#include <unistd.h>
+
+#include "tm.h"
+#include "utils.h"
+
+int passed;
+
+void *worker(void *unused)
+{
+	__int128 vmx0;
+	uint64_t texasr;
+
+	asm goto (
+		"li       3, 1;"  /* Stick non-zero value in VMX0 */
+		"std      3, 0(%[vmx0_ptr]);"
+		"lvx      0, 0, %[vmx0_ptr];"
+
+		/* Wait here a bit so we get scheduled out 255 times */
+		"lis      3, 0x3fff;"
+		"1: ;"
+		"addi     3, 3, -1;"
+		"cmpdi    3, 0;"
+		"bne      1b;"
+
+		/* Kernel will hopefully turn VMX off now */
+
+		"tbegin. ;"
+		"beq      failure;"
+
+		/* Cause VMX unavail. Any VMX instruction */
+		"vaddcuw  0,0,0;"
+
+		"tend. ;"
+		"b        %l[success];"
+
+		/* Check VMX0 sanity after abort */
+		"failure: ;"
+		"lvx       1,  0, %[vmx0_ptr];"
+		"vcmpequb. 2,  0, 1;"
+		"bc        4, 24, %l[value_mismatch];"
+		"b        %l[value_match];"
+		:
+		: [vmx0_ptr] "r"(&vmx0)
+		: "r3"
+		: success, value_match, value_mismatch
+		);
+
+	/* HTM aborted and VMX0 is corrupted */
+value_mismatch:
+	texasr = __builtin_get_texasr();
+
+	printf("\n\n==============\n\n");
+	printf("Failure with error: %lx\n",   _TEXASR_FAILURE_CODE(texasr));
+	printf("Summary error     : %lx\n",   _TEXASR_FAILURE_SUMMARY(texasr));
+	printf("TFIAR exact       : %lx\n\n", _TEXASR_TFIAR_EXACT(texasr));
+
+	passed = 0;
+	return NULL;
+
+	/* HTM aborted but VMX0 is correct */
+value_match:
+//	printf("!");
+	return NULL;
+
+success:
+//	printf(".");
+	return NULL;
+}
+
+int tm_vmx_unavail_test()
+{
+	int threads;
+	pthread_t *thread;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+
+	passed = 1;
+
+	threads = sysconf(_SC_NPROCESSORS_ONLN) * 4;
+	thread = malloc(sizeof(pthread_t)*threads);
+	if (!thread)
+		return EXIT_FAILURE;
+
+	for (uint64_t i = 0; i < threads; i++)
+		pthread_create(&thread[i], NULL, &worker, NULL);
+
+	for (uint64_t i = 0; i < threads; i++)
+		pthread_join(thread[i], NULL);
+
+	free(thread);
+
+	return passed ? EXIT_SUCCESS : EXIT_FAILURE;
+}
+
+
+int main(int argc, char **argv)
+{
+	return test_harness(tm_vmx_unavail_test, "tm_vmx_unavail_test");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm-vmxcopy.c b/tools/testing/selftests/powerpc/tm/tm-vmxcopy.c
new file mode 100644
index 000000000000..1640e7ead69b
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm-vmxcopy.c
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2015, Michael Neuling, IBM Corp.
+ *
+ * Original: Michael Neuling 4/12/2013
+ * Edited: Rashmica Gupta 4/12/2015
+ *
+ * See if the altivec state is leaked out of an aborted transaction due to
+ * kernel vmx copy loops.
+ *
+ * When the transaction aborts, VSR values should rollback to the values
+ * they held before the transaction commenced. Using VSRs while transaction
+ * is suspended should not affect the checkpointed values.
+ *
+ * (1) write A to a VSR
+ * (2) start transaction
+ * (3) suspend transaction
+ * (4) change the VSR to B
+ * (5) trigger kernel vmx copy loop
+ * (6) abort transaction
+ * (7) check that the VSR value is A
+ */
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <string.h>
+#include <assert.h>
+
+#include "tm.h"
+#include "utils.h"
+
+int test_vmxcopy()
+{
+	long double vecin = 1.3;
+	long double vecout;
+	unsigned long pgsize = getpagesize();
+	int i;
+	int fd;
+	int size = pgsize*16;
+	char tmpfile[] = "/tmp/page_faultXXXXXX";
+	char buf[pgsize];
+	char *a;
+	uint64_t aborted = 0;
+
+	SKIP_IF(!have_htm());
+	SKIP_IF(htm_is_synthetic());
+	SKIP_IF(!is_ppc64le());
+
+	fd = mkstemp(tmpfile);
+	assert(fd >= 0);
+
+	memset(buf, 0, pgsize);
+	for (i = 0; i < size; i += pgsize)
+		assert(write(fd, buf, pgsize) == pgsize);
+
+	unlink(tmpfile);
+
+	a = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+	assert(a != MAP_FAILED);
+
+	asm __volatile__(
+		"lxvd2x 40,0,%[vecinptr];"	/* set 40 to initial value*/
+		"tbegin.;"
+		"beq	3f;"
+		"tsuspend.;"
+		"xxlxor 40,40,40;"		/* set 40 to 0 */
+		"std	5, 0(%[map]);"		/* cause kernel vmx copy page */
+		"tabort. 0;"
+		"tresume.;"
+		"tend.;"
+		"li	%[res], 0;"
+		"b	5f;"
+
+		/* Abort handler */
+		"3:;"
+		"li	%[res], 1;"
+
+		"5:;"
+		"stxvd2x 40,0,%[vecoutptr];"
+		: [res]"=&r"(aborted)
+		: [vecinptr]"r"(&vecin),
+		  [vecoutptr]"r"(&vecout),
+		  [map]"r"(a)
+		: "memory", "r0", "r3", "r4", "r5", "r6", "r7");
+
+	if (aborted && (vecin != vecout)){
+		printf("FAILED: vector state leaked on abort %f != %f\n",
+		       (double)vecin, (double)vecout);
+		return 1;
+	}
+
+	munmap(a, size);
+
+	close(fd);
+
+	return 0;
+}
+
+int main(void)
+{
+	return test_harness(test_vmxcopy, "tm_vmxcopy");
+}
diff --git a/tools/testing/selftests/powerpc/tm/tm.h b/tools/testing/selftests/powerpc/tm/tm.h
new file mode 100644
index 000000000000..c03c6e778876
--- /dev/null
+++ b/tools/testing/selftests/powerpc/tm/tm.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2015, Michael Ellerman, IBM Corp.
+ */
+
+#ifndef _SELFTESTS_POWERPC_TM_TM_H
+#define _SELFTESTS_POWERPC_TM_TM_H
+
+#include <stdbool.h>
+#include <asm/tm.h>
+
+#include "utils.h"
+#include "reg.h"
+
+#define TM_RETRIES 100
+
+static inline bool have_htm(void)
+{
+#ifdef PPC_FEATURE2_HTM
+	return have_hwcap2(PPC_FEATURE2_HTM);
+#else
+	printf("PPC_FEATURE2_HTM not defined, can't check AT_HWCAP2\n");
+	return false;
+#endif
+}
+
+static inline bool have_htm_nosc(void)
+{
+#ifdef PPC_FEATURE2_HTM_NOSC
+	return have_hwcap2(PPC_FEATURE2_HTM_NOSC);
+#else
+	printf("PPC_FEATURE2_HTM_NOSC not defined, can't check AT_HWCAP2\n");
+	return false;
+#endif
+}
+
+/*
+ * Transactional Memory was removed in ISA 3.1. A synthetic TM implementation
+ * is provided on P10 for threads running in P8/P9 compatibility  mode. The
+ * synthetic implementation immediately fails after tbegin. This failure sets
+ * Bit 7 (Failure Persistent) and Bit 15 (Implementation-specific).
+ */
+static inline bool htm_is_synthetic(void)
+{
+	int i;
+
+	/*
+	 * Per the ISA, the Failure Persistent bit may be incorrect. Try a few
+	 * times in case we got an Implementation-specific failure on a non ISA
+	 * v3.1 system. On these systems the Implementation-specific failure
+	 * should not be persistent.
+	 */
+	for (i = 0; i < TM_RETRIES; i++) {
+		asm volatile(
+		"tbegin.;"
+		"beq 1f;"
+		"tend.;"
+		"1:"
+		:
+		:
+		: "memory");
+
+		if ((__builtin_get_texasr() & (TEXASR_FP | TEXASR_IC)) !=
+		    (TEXASR_FP | TEXASR_IC))
+			break;
+	}
+	return i == TM_RETRIES;
+}
+
+static inline long failure_code(void)
+{
+	return __builtin_get_texasru() >> 24;
+}
+
+static inline bool failure_is_persistent(void)
+{
+	return (failure_code() & TM_CAUSE_PERSISTENT) == TM_CAUSE_PERSISTENT;
+}
+
+static inline bool failure_is_syscall(void)
+{
+	return (failure_code() & TM_CAUSE_SYSCALL) == TM_CAUSE_SYSCALL;
+}
+
+static inline bool failure_is_unavailable(void)
+{
+	return (failure_code() & TM_CAUSE_FAC_UNAV) == TM_CAUSE_FAC_UNAV;
+}
+
+static inline bool failure_is_reschedule(void)
+{
+	if ((failure_code() & TM_CAUSE_RESCHED) == TM_CAUSE_RESCHED ||
+	    (failure_code() & TM_CAUSE_KVM_RESCHED) == TM_CAUSE_KVM_RESCHED ||
+	    (failure_code() & TM_CAUSE_KVM_FAC_UNAV) == TM_CAUSE_KVM_FAC_UNAV)
+		return true;
+
+	return false;
+}
+
+static inline bool failure_is_nesting(void)
+{
+	return (__builtin_get_texasru() & 0x400000);
+}
+
+static inline int tcheck(void)
+{
+	long cr;
+	asm volatile ("tcheck 0" : "=r"(cr) : : "cr0");
+	return (cr >> 28) & 4;
+}
+
+static inline bool tcheck_doomed(void)
+{
+	return tcheck() & 8;
+}
+
+static inline bool tcheck_active(void)
+{
+	return tcheck() & 4;
+}
+
+static inline bool tcheck_suspended(void)
+{
+	return tcheck() & 2;
+}
+
+static inline bool tcheck_transactional(void)
+{
+	return tcheck() & 6;
+}
+
+#endif /* _SELFTESTS_POWERPC_TM_TM_H */
diff --git a/tools/testing/selftests/powerpc/utils.c b/tools/testing/selftests/powerpc/utils.c
new file mode 100644
index 000000000000..e5f2d8735c64
--- /dev/null
+++ b/tools/testing/selftests/powerpc/utils.c
@@ -0,0 +1,644 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2013-2015, Michael Ellerman, IBM Corp.
+ */
+
+#define _GNU_SOURCE	/* For CPU_ZERO etc. */
+
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <link.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/sysinfo.h>
+#include <sys/types.h>
+#include <sys/utsname.h>
+#include <unistd.h>
+#include <asm/unistd.h>
+#include <linux/limits.h>
+
+#include "utils.h"
+
+static char auxv[4096];
+
+int read_file(const char *path, char *buf, size_t count, size_t *len)
+{
+	ssize_t rc;
+	int fd;
+	int err;
+	char eof;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return -errno;
+
+	rc = read(fd, buf, count);
+	if (rc < 0) {
+		err = -errno;
+		goto out;
+	}
+
+	if (len)
+		*len = rc;
+
+	/* Overflow if there are still more bytes after filling the buffer */
+	if (rc == count) {
+		rc = read(fd, &eof, 1);
+		if (rc != 0) {
+			err = -EOVERFLOW;
+			goto out;
+		}
+	}
+
+	err = 0;
+
+out:
+	close(fd);
+	errno = -err;
+	return err;
+}
+
+int read_file_alloc(const char *path, char **buf, size_t *len)
+{
+	size_t read_offset = 0;
+	size_t buffer_len = 0;
+	char *buffer = NULL;
+	int err;
+	int fd;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return -errno;
+
+	/*
+	 * We don't use stat & preallocate st_size because some non-files
+	 * report 0 file size. Instead just dynamically grow the buffer
+	 * as needed.
+	 */
+	while (1) {
+		ssize_t rc;
+
+		if (read_offset >= buffer_len / 2) {
+			char *next_buffer;
+
+			buffer_len = buffer_len ? buffer_len * 2 : 4096;
+			next_buffer = realloc(buffer, buffer_len);
+			if (!next_buffer) {
+				err = -errno;
+				goto out;
+			}
+			buffer = next_buffer;
+		}
+
+		rc = read(fd, buffer + read_offset, buffer_len - read_offset);
+		if (rc < 0) {
+			err = -errno;
+			goto out;
+		}
+
+		if (rc == 0)
+			break;
+
+		read_offset += rc;
+	}
+
+	*buf = buffer;
+	if (len)
+		*len = read_offset;
+
+	err = 0;
+
+out:
+	close(fd);
+	if (err)
+		free(buffer);
+	errno = -err;
+	return err;
+}
+
+int write_file(const char *path, const char *buf, size_t count)
+{
+	int fd;
+	int err;
+	ssize_t rc;
+
+	fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+	if (fd < 0)
+		return -errno;
+
+	rc = write(fd, buf, count);
+	if (rc < 0) {
+		err = -errno;
+		goto out;
+	}
+
+	if (rc != count) {
+		err = -EOVERFLOW;
+		goto out;
+	}
+
+	err = 0;
+
+out:
+	close(fd);
+	errno = -err;
+	return err;
+}
+
+int read_auxv(char *buf, ssize_t buf_size)
+{
+	int err;
+
+	err = read_file("/proc/self/auxv", buf, buf_size, NULL);
+	if (err) {
+		perror("Error reading /proc/self/auxv");
+		return err;
+	}
+
+	return 0;
+}
+
+int read_debugfs_file(const char *subpath, char *buf, size_t count)
+{
+	char path[PATH_MAX] = "/sys/kernel/debug/";
+
+	strncat(path, subpath, sizeof(path) - strlen(path) - 1);
+
+	return read_file(path, buf, count, NULL);
+}
+
+int write_debugfs_file(const char *subpath, const char *buf, size_t count)
+{
+	char path[PATH_MAX] = "/sys/kernel/debug/";
+
+	strncat(path, subpath, sizeof(path) - strlen(path) - 1);
+
+	return write_file(path, buf, count);
+}
+
+static int validate_int_parse(const char *buffer, size_t count, char *end)
+{
+	int err = 0;
+
+	/* Require at least one digit */
+	if (end == buffer) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	/* Require all remaining characters be whitespace-ish */
+	for (; end < buffer + count; end++) {
+		if (*end == '\0')
+			break;
+
+		if (*end != ' ' && *end != '\n') {
+			err = -EINVAL;
+			goto out;
+		}
+	}
+
+out:
+	errno = -err;
+	return err;
+}
+
+static int parse_bounded_int(const char *buffer, size_t count, intmax_t *result,
+			     int base, intmax_t min, intmax_t max)
+{
+	int err;
+	char *end;
+
+	errno = 0;
+	*result = strtoimax(buffer, &end, base);
+
+	if (errno)
+		return -errno;
+
+	err = validate_int_parse(buffer, count, end);
+	if (err)
+		goto out;
+
+	if (*result < min || *result > max)
+		err = -EOVERFLOW;
+
+out:
+	errno = -err;
+	return err;
+}
+
+static int parse_bounded_uint(const char *buffer, size_t count, uintmax_t *result,
+			      int base, uintmax_t max)
+{
+	int err = 0;
+	char *end;
+
+	errno = 0;
+	*result = strtoumax(buffer, &end, base);
+
+	if (errno)
+		return -errno;
+
+	err = validate_int_parse(buffer, count, end);
+	if (err)
+		goto out;
+
+	if (*result > max)
+		err = -EOVERFLOW;
+
+out:
+	errno = -err;
+	return err;
+}
+
+int parse_intmax(const char *buffer, size_t count, intmax_t *result, int base)
+{
+	return parse_bounded_int(buffer, count, result, base, INTMAX_MIN, INTMAX_MAX);
+}
+
+int parse_uintmax(const char *buffer, size_t count, uintmax_t *result, int base)
+{
+	return parse_bounded_uint(buffer, count, result, base, UINTMAX_MAX);
+}
+
+int parse_int(const char *buffer, size_t count, int *result, int base)
+{
+	intmax_t parsed;
+	int err = parse_bounded_int(buffer, count, &parsed, base, INT_MIN, INT_MAX);
+
+	*result = parsed;
+	return err;
+}
+
+int parse_uint(const char *buffer, size_t count, unsigned int *result, int base)
+{
+	uintmax_t parsed;
+	int err = parse_bounded_uint(buffer, count, &parsed, base, UINT_MAX);
+
+	*result = parsed;
+	return err;
+}
+
+int parse_long(const char *buffer, size_t count, long *result, int base)
+{
+	intmax_t parsed;
+	int err = parse_bounded_int(buffer, count, &parsed, base, LONG_MIN, LONG_MAX);
+
+	*result = parsed;
+	return err;
+}
+
+int parse_ulong(const char *buffer, size_t count, unsigned long *result, int base)
+{
+	uintmax_t parsed;
+	int err = parse_bounded_uint(buffer, count, &parsed, base, ULONG_MAX);
+
+	*result = parsed;
+	return err;
+}
+
+int read_long(const char *path, long *result, int base)
+{
+	int err;
+	char buffer[32] = {0};
+
+	err = read_file(path, buffer, sizeof(buffer) - 1, NULL);
+	if (err)
+		return err;
+
+	return parse_long(buffer, sizeof(buffer), result, base);
+}
+
+int read_ulong(const char *path, unsigned long *result, int base)
+{
+	int err;
+	char buffer[32] = {0};
+
+	err = read_file(path, buffer, sizeof(buffer) - 1, NULL);
+	if (err)
+		return err;
+
+	return parse_ulong(buffer, sizeof(buffer), result, base);
+}
+
+int write_long(const char *path, long result, int base)
+{
+	int err;
+	int len;
+	char buffer[32];
+
+	/* Decimal only for now: no format specifier for signed hex values */
+	if (base != 10) {
+		err = -EINVAL;
+		goto out;
+	}
+
+	len = snprintf(buffer, sizeof(buffer), "%ld", result);
+	if (len < 0 || len >= sizeof(buffer)) {
+		err = -EOVERFLOW;
+		goto out;
+	}
+
+	err = write_file(path, buffer, len);
+
+out:
+	errno = -err;
+	return err;
+}
+
+int write_ulong(const char *path, unsigned long result, int base)
+{
+	int err;
+	int len;
+	char buffer[32];
+	char *fmt;
+
+	switch (base) {
+	case 10:
+		fmt = "%lu";
+		break;
+	case 16:
+		fmt = "%lx";
+		break;
+	default:
+		err = -EINVAL;
+		goto out;
+	}
+
+	len = snprintf(buffer, sizeof(buffer), fmt, result);
+	if (len < 0 || len >= sizeof(buffer)) {
+		err = -errno;
+		goto out;
+	}
+
+	err = write_file(path, buffer, len);
+
+out:
+	errno = -err;
+	return err;
+}
+
+void *find_auxv_entry(int type, char *auxv)
+{
+	ElfW(auxv_t) *p;
+
+	p = (ElfW(auxv_t) *)auxv;
+
+	while (p->a_type != AT_NULL) {
+		if (p->a_type == type)
+			return p;
+
+		p++;
+	}
+
+	return NULL;
+}
+
+void *get_auxv_entry(int type)
+{
+	ElfW(auxv_t) *p;
+
+	if (read_auxv(auxv, sizeof(auxv)))
+		return NULL;
+
+	p = find_auxv_entry(type, auxv);
+	if (p)
+		return (void *)p->a_un.a_val;
+
+	return NULL;
+}
+
+int pick_online_cpu(void)
+{
+	int ncpus, cpu = -1;
+	cpu_set_t *mask;
+	size_t size;
+
+	ncpus = get_nprocs_conf();
+	size = CPU_ALLOC_SIZE(ncpus);
+	mask = CPU_ALLOC(ncpus);
+	if (!mask) {
+		perror("malloc");
+		return -1;
+	}
+
+	CPU_ZERO_S(size, mask);
+
+	if (sched_getaffinity(0, size, mask)) {
+		perror("sched_getaffinity");
+		goto done;
+	}
+
+	/* We prefer a primary thread, but skip 0 */
+	for (cpu = 8; cpu < ncpus; cpu += 8)
+		if (CPU_ISSET_S(cpu, size, mask))
+			goto done;
+
+	/* Search for anything, but in reverse */
+	for (cpu = ncpus - 1; cpu >= 0; cpu--)
+		if (CPU_ISSET_S(cpu, size, mask))
+			goto done;
+
+	printf("No cpus in affinity mask?!\n");
+
+done:
+	CPU_FREE(mask);
+	return cpu;
+}
+
+int bind_to_cpu(int cpu)
+{
+	cpu_set_t mask;
+	int err;
+
+	if (cpu == BIND_CPU_ANY) {
+		cpu = pick_online_cpu();
+		if (cpu < 0)
+			return cpu;
+	}
+
+	printf("Binding to cpu %d\n", cpu);
+
+	CPU_ZERO(&mask);
+	CPU_SET(cpu, &mask);
+
+	err = sched_setaffinity(0, sizeof(mask), &mask);
+	if (err)
+		return err;
+
+	return cpu;
+}
+
+bool is_ppc64le(void)
+{
+	struct utsname uts;
+	int rc;
+
+	errno = 0;
+	rc = uname(&uts);
+	if (rc) {
+		perror("uname");
+		return false;
+	}
+
+	return strcmp(uts.machine, "ppc64le") == 0;
+}
+
+int read_sysfs_file(char *fpath, char *result, size_t result_size)
+{
+	char path[PATH_MAX] = "/sys/";
+
+	strncat(path, fpath, PATH_MAX - strlen(path) - 1);
+
+	return read_file(path, result, result_size, NULL);
+}
+
+int read_debugfs_int(const char *debugfs_file, int *result)
+{
+	int err;
+	char value[16] = {0};
+
+	err = read_debugfs_file(debugfs_file, value, sizeof(value) - 1);
+	if (err)
+		return err;
+
+	return parse_int(value, sizeof(value), result, 10);
+}
+
+int write_debugfs_int(const char *debugfs_file, int result)
+{
+	char value[16];
+
+	snprintf(value, 16, "%d", result);
+
+	return write_debugfs_file(debugfs_file, value, strlen(value));
+}
+
+static long perf_event_open(struct perf_event_attr *hw_event, pid_t pid,
+		int cpu, int group_fd, unsigned long flags)
+{
+	return syscall(__NR_perf_event_open, hw_event, pid, cpu,
+		      group_fd, flags);
+}
+
+static void perf_event_attr_init(struct perf_event_attr *event_attr,
+					unsigned int type,
+					unsigned long config)
+{
+	memset(event_attr, 0, sizeof(*event_attr));
+
+	event_attr->type = type;
+	event_attr->size = sizeof(struct perf_event_attr);
+	event_attr->config = config;
+	event_attr->read_format = PERF_FORMAT_GROUP;
+	event_attr->disabled = 1;
+	event_attr->exclude_kernel = 1;
+	event_attr->exclude_hv = 1;
+	event_attr->exclude_guest = 1;
+}
+
+int perf_event_open_counter(unsigned int type,
+			    unsigned long config, int group_fd)
+{
+	int fd;
+	struct perf_event_attr event_attr;
+
+	perf_event_attr_init(&event_attr, type, config);
+
+	fd = perf_event_open(&event_attr, 0, -1, group_fd, 0);
+
+	if (fd < 0)
+		perror("perf_event_open() failed");
+
+	return fd;
+}
+
+int perf_event_enable(int fd)
+{
+	if (ioctl(fd, PERF_EVENT_IOC_ENABLE, PERF_IOC_FLAG_GROUP) == -1) {
+		perror("error while enabling perf events");
+		return -1;
+	}
+
+	return 0;
+}
+
+int perf_event_disable(int fd)
+{
+	if (ioctl(fd, PERF_EVENT_IOC_DISABLE, PERF_IOC_FLAG_GROUP) == -1) {
+		perror("error disabling perf events");
+		return -1;
+	}
+
+	return 0;
+}
+
+int perf_event_reset(int fd)
+{
+	if (ioctl(fd, PERF_EVENT_IOC_RESET, PERF_IOC_FLAG_GROUP) == -1) {
+		perror("error resetting perf events");
+		return -1;
+	}
+
+	return 0;
+}
+
+int using_hash_mmu(bool *using_hash)
+{
+	char line[128];
+	FILE *f;
+	int rc;
+
+	f = fopen("/proc/cpuinfo", "r");
+	FAIL_IF(!f);
+
+	rc = 0;
+	while (fgets(line, sizeof(line), f) != NULL) {
+		if (!strcmp(line, "MMU		: Hash\n") ||
+		    !strcmp(line, "platform	: Cell\n") ||
+		    !strcmp(line, "platform	: PowerMac\n")) {
+			*using_hash = true;
+			goto out;
+		}
+
+		if (strcmp(line, "MMU		: Radix\n") == 0) {
+			*using_hash = false;
+			goto out;
+		}
+	}
+
+	rc = -1;
+out:
+	fclose(f);
+	return rc;
+}
+
+struct sigaction push_signal_handler(int sig, void (*fn)(int, siginfo_t *, void *))
+{
+	struct sigaction sa;
+	struct sigaction old_handler;
+
+	sa.sa_sigaction = fn;
+	sigemptyset(&sa.sa_mask);
+	sa.sa_flags = SA_SIGINFO;
+	FAIL_IF_EXIT_MSG(sigaction(sig, &sa, &old_handler),
+			 "failed to push signal handler");
+
+	return old_handler;
+}
+
+struct sigaction pop_signal_handler(int sig, struct sigaction old_handler)
+{
+	struct sigaction popped;
+
+	FAIL_IF_EXIT_MSG(sigaction(sig, &old_handler, &popped),
+			 "failed to pop signal handler");
+
+	return popped;
+}
diff --git a/tools/testing/selftests/powerpc/utils.h b/tools/testing/selftests/powerpc/utils.h
deleted file mode 100644
index b7d41086bb0a..000000000000
--- a/tools/testing/selftests/powerpc/utils.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Copyright 2013, Michael Ellerman, IBM Corp.
- * Licensed under GPLv2.
- */
-
-#ifndef _SELFTESTS_POWERPC_UTILS_H
-#define _SELFTESTS_POWERPC_UTILS_H
-
-#include <stdint.h>
-#include <stdbool.h>
-
-/* Avoid headaches with PRI?64 - just use %ll? always */
-typedef unsigned long long u64;
-typedef   signed long long s64;
-
-/* Just for familiarity */
-typedef uint32_t u32;
-typedef uint16_t u16;
-typedef uint8_t u8;
-
-
-int test_harness(int (test_function)(void), char *name);
-extern void *get_auxv_entry(int type);
-
-/* Yes, this is evil */
-#define FAIL_IF(x)						\
-do {								\
-	if ((x)) {						\
-		fprintf(stderr,					\
-		"[FAIL] Test FAILED on line %d\n", __LINE__);	\
-		return 1;					\
-	}							\
-} while (0)
-
-/* The test harness uses this, yes it's gross */
-#define MAGIC_SKIP_RETURN_VALUE	99
-
-#define SKIP_IF(x)						\
-do {								\
-	if ((x)) {						\
-		fprintf(stderr,					\
-		"[SKIP] Test skipped on line %d\n", __LINE__);	\
-		return MAGIC_SKIP_RETURN_VALUE;			\
-	}							\
-} while (0)
-
-#define _str(s) #s
-#define str(s) _str(s)
-
-#endif /* _SELFTESTS_POWERPC_UTILS_H */
diff --git a/tools/testing/selftests/powerpc/vphn/.gitignore b/tools/testing/selftests/powerpc/vphn/.gitignore
index 7c04395010cb..b744aedfd1f2 100644
--- a/tools/testing/selftests/powerpc/vphn/.gitignore
+++ b/tools/testing/selftests/powerpc/vphn/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 test-vphn
diff --git a/tools/testing/selftests/powerpc/vphn/Makefile b/tools/testing/selftests/powerpc/vphn/Makefile
index a485f2e286ae..61d519a076c6 100644
--- a/tools/testing/selftests/powerpc/vphn/Makefile
+++ b/tools/testing/selftests/powerpc/vphn/Makefile
@@ -1,12 +1,11 @@
-TEST_PROGS := test-vphn
+# SPDX-License-Identifier: GPL-2.0-only
+TEST_GEN_PROGS := test-vphn
 
-CFLAGS += -m64
-
-all: $(TEST_PROGS)
+top_srcdir = ../../../../..
+include ../../lib.mk
+include ../flags.mk
 
-$(TEST_PROGS): ../harness.c
+CFLAGS += -m64 -I$(CURDIR)
 
-include ../../lib.mk
+$(TEST_GEN_PROGS): ../harness.c
 
-clean:
-	rm -f $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/vphn/asm/vphn.h b/tools/testing/selftests/powerpc/vphn/asm/vphn.h
new file mode 120000
index 000000000000..3a0b2a00171c
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/asm/vphn.h
@@ -0,0 +1 @@
+../../../../../../arch/powerpc/include/asm/vphn.h
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/vphn/settings b/tools/testing/selftests/powerpc/vphn/settings
new file mode 100644
index 000000000000..2e8566183318
--- /dev/null
+++ b/tools/testing/selftests/powerpc/vphn/settings
@@ -0,0 +1 @@
+timeout=130
diff --git a/tools/testing/selftests/powerpc/vphn/test-vphn.c b/tools/testing/selftests/powerpc/vphn/test-vphn.c
index 5742f6876b25..f348f54914a9 100644
--- a/tools/testing/selftests/powerpc/vphn/test-vphn.c
+++ b/tools/testing/selftests/powerpc/vphn/test-vphn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <byteswap.h>
 #include "utils.h"
@@ -274,7 +275,7 @@ static struct test {
 		}
 	},
 	{
-		/* Parse a 32-bit value split accross two consecutives 64-bit
+		/* Parse a 32-bit value split across two consecutives 64-bit
 		 * input values.
 		 */
 		"vphn: 16-bit value followed by 2 x 32-bit values",
diff --git a/tools/testing/selftests/powerpc/vphn/vphn.c b/tools/testing/selftests/powerpc/vphn/vphn.c
index 186b906e66d5..5b5fbddccabd 120000
--- a/tools/testing/selftests/powerpc/vphn/vphn.c
+++ b/tools/testing/selftests/powerpc/vphn/vphn.c
@@ -1 +1 @@
-../../../../../arch/powerpc/mm/vphn.c
-\ No newline at end of file
+../../../../../arch/powerpc/platforms/pseries/vphn.c
+\ No newline at end of file
diff --git a/tools/testing/selftests/powerpc/vphn/vphn.h b/tools/testing/selftests/powerpc/vphn/vphn.h
deleted file mode 120000
index 7131efe38c65..000000000000
--- a/tools/testing/selftests/powerpc/vphn/vphn.h
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../arch/powerpc/mm/vphn.h
-\ No newline at end of file
diff --git a/tools/testing/selftests/prctl/.gitignore b/tools/testing/selftests/prctl/.gitignore
new file mode 100644
index 000000000000..05d5e31661df
--- /dev/null
+++ b/tools/testing/selftests/prctl/.gitignore
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+disable-tsc-ctxt-sw-stress-test
+disable-tsc-on-off-stress-test
+disable-tsc-test
+set-anon-vma-name-test
+set-process-name
diff --git a/tools/testing/selftests/prctl/Makefile b/tools/testing/selftests/prctl/Makefile
new file mode 100644
index 000000000000..01dc90fbb509
--- /dev/null
+++ b/tools/testing/selftests/prctl/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+ifndef CROSS_COMPILE
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
+
+ifeq ($(ARCH),x86)
+TEST_PROGS := disable-tsc-ctxt-sw-stress-test disable-tsc-on-off-stress-test \
+		disable-tsc-test set-anon-vma-name-test set-process-name
+all: $(TEST_PROGS)
+
+include ../lib.mk
+
+endif
+endif
diff --git a/tools/testing/selftests/prctl/config b/tools/testing/selftests/prctl/config
new file mode 100644
index 000000000000..c6ed03c544e5
--- /dev/null
+++ b/tools/testing/selftests/prctl/config
@@ -0,0 +1 @@
+CONFIG_ANON_VMA_NAME=y
diff --git a/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c b/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c
new file mode 100644
index 000000000000..6d1a5ee8eb28
--- /dev/null
+++ b/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c
@@ -0,0 +1,98 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
+ *
+ * Tests if the control register is updated correctly
+ * at context switches
+ *
+ * Warning: this test will cause a very high load for a few seconds
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <inttypes.h>
+#include <wait.h>
+
+
+#include <sys/prctl.h>
+#include <linux/prctl.h>
+
+/* Get/set the process' ability to use the timestamp counter instruction */
+#ifndef PR_GET_TSC
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE		1   /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV		2   /* throw a SIGSEGV instead of reading the TSC */
+#endif
+
+static uint64_t rdtsc(void)
+{
+uint32_t lo, hi;
+/* We cannot use "=A", since this would use %rax on x86_64 */
+__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
+return (uint64_t)hi << 32 | lo;
+}
+
+static void sigsegv_expect(int sig)
+{
+	/* */
+}
+
+static void segvtask(void)
+{
+	if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
+	{
+		perror("prctl");
+		exit(0);
+	}
+	signal(SIGSEGV, sigsegv_expect);
+	alarm(10);
+	rdtsc();
+	fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n");
+	exit(0);
+}
+
+
+static void sigsegv_fail(int sig)
+{
+	fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
+	exit(0);
+}
+
+static void rdtsctask(void)
+{
+	if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
+	{
+		perror("prctl");
+		exit(0);
+	}
+	signal(SIGSEGV, sigsegv_fail);
+	alarm(10);
+	for(;;) rdtsc();
+}
+
+
+int main(void)
+{
+	int n_tasks = 100, i;
+
+	fprintf(stderr, "[No further output means we're all right]\n");
+
+	for (i=0; i<n_tasks; i++)
+		if (fork() == 0)
+		{
+			if (i & 1)
+				segvtask();
+			else
+				rdtsctask();
+		}
+
+	for (i=0; i<n_tasks; i++)
+		wait(NULL);
+
+	exit(0);
+}
+
diff --git a/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c b/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c
new file mode 100644
index 000000000000..d39511eb9b01
--- /dev/null
+++ b/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c
@@ -0,0 +1,97 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
+ *
+ * Tests if the control register is updated correctly
+ * when set with prctl()
+ *
+ * Warning: this test will cause a very high load for a few seconds
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <inttypes.h>
+#include <wait.h>
+
+
+#include <sys/prctl.h>
+#include <linux/prctl.h>
+
+/* Get/set the process' ability to use the timestamp counter instruction */
+#ifndef PR_GET_TSC
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE		1   /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV		2   /* throw a SIGSEGV instead of reading the TSC */
+#endif
+
+/* snippet from wikipedia :-) */
+
+static uint64_t rdtsc(void)
+{
+uint32_t lo, hi;
+/* We cannot use "=A", since this would use %rax on x86_64 */
+__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
+return (uint64_t)hi << 32 | lo;
+}
+
+int should_segv = 0;
+
+static void sigsegv_cb(int sig)
+{
+	if (!should_segv)
+	{
+		fprintf(stderr, "FATAL ERROR, rdtsc() failed while enabled\n");
+		exit(0);
+	}
+	if (prctl(PR_SET_TSC, PR_TSC_ENABLE) < 0)
+	{
+		perror("prctl");
+		exit(0);
+	}
+	should_segv = 0;
+
+	rdtsc();
+}
+
+static void task(void)
+{
+	signal(SIGSEGV, sigsegv_cb);
+	alarm(10);
+	for(;;)
+	{
+		rdtsc();
+		if (should_segv)
+		{
+			fprintf(stderr, "FATAL ERROR, rdtsc() succeeded while disabled\n");
+			exit(0);
+		}
+		if (prctl(PR_SET_TSC, PR_TSC_SIGSEGV) < 0)
+		{
+			perror("prctl");
+			exit(0);
+		}
+		should_segv = 1;
+	}
+}
+
+
+int main(void)
+{
+	int n_tasks = 100, i;
+
+	fprintf(stderr, "[No further output means we're all right]\n");
+
+	for (i=0; i<n_tasks; i++)
+		if (fork() == 0)
+			task();
+
+	for (i=0; i<n_tasks; i++)
+		wait(NULL);
+
+	exit(0);
+}
+
diff --git a/tools/testing/selftests/prctl/disable-tsc-test.c b/tools/testing/selftests/prctl/disable-tsc-test.c
new file mode 100644
index 000000000000..f84d4ee111d3
--- /dev/null
+++ b/tools/testing/selftests/prctl/disable-tsc-test.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
+ *
+ * Basic test to test behaviour of PR_GET_TSC and PR_SET_TSC
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <inttypes.h>
+
+
+#include <sys/prctl.h>
+#include <linux/prctl.h>
+
+/* Get/set the process' ability to use the timestamp counter instruction */
+#ifndef PR_GET_TSC
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE		1   /* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV		2   /* throw a SIGSEGV instead of reading the TSC */
+#endif
+
+const char *tsc_names[] =
+{
+	[0] = "[not set]",
+	[PR_TSC_ENABLE] = "PR_TSC_ENABLE",
+	[PR_TSC_SIGSEGV] = "PR_TSC_SIGSEGV",
+};
+
+static uint64_t rdtsc(void)
+{
+uint32_t lo, hi;
+/* We cannot use "=A", since this would use %rax on x86_64 */
+__asm__ __volatile__ ("rdtsc" : "=a" (lo), "=d" (hi));
+return (uint64_t)hi << 32 | lo;
+}
+
+static void sigsegv_cb(int sig)
+{
+	int tsc_val = 0;
+
+	printf("[ SIG_SEGV ]\n");
+	printf("prctl(PR_GET_TSC, &tsc_val); ");
+	fflush(stdout);
+
+	if ( prctl(PR_GET_TSC, &tsc_val) == -1)
+		perror("prctl");
+
+	printf("tsc_val == %s\n", tsc_names[tsc_val]);
+	printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n");
+	fflush(stdout);
+	if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1)
+		perror("prctl");
+
+	printf("rdtsc() == ");
+}
+
+int main(void)
+{
+	int tsc_val = 0;
+
+	signal(SIGSEGV, sigsegv_cb);
+
+	printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
+	printf("prctl(PR_GET_TSC, &tsc_val); ");
+	fflush(stdout);
+
+	if ( prctl(PR_GET_TSC, &tsc_val) == -1)
+		perror("prctl");
+
+	printf("tsc_val == %s\n", tsc_names[tsc_val]);
+	printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
+	printf("prctl(PR_SET_TSC, PR_TSC_ENABLE)\n");
+	fflush(stdout);
+
+	if ( prctl(PR_SET_TSC, PR_TSC_ENABLE) == -1)
+		perror("prctl");
+
+	printf("rdtsc() == %llu\n", (unsigned long long)rdtsc());
+	printf("prctl(PR_SET_TSC, PR_TSC_SIGSEGV)\n");
+	fflush(stdout);
+
+	if ( prctl(PR_SET_TSC, PR_TSC_SIGSEGV) == -1)
+		perror("prctl");
+
+	printf("rdtsc() == ");
+	fflush(stdout);
+	printf("%llu\n", (unsigned long long)rdtsc());
+	fflush(stdout);
+
+	exit(EXIT_SUCCESS);
+}
+
diff --git a/tools/testing/selftests/prctl/set-anon-vma-name-test.c b/tools/testing/selftests/prctl/set-anon-vma-name-test.c
new file mode 100644
index 000000000000..ac6721b184a6
--- /dev/null
+++ b/tools/testing/selftests/prctl/set-anon-vma-name-test.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This test covers the anonymous VMA naming functionality through prctl calls
+ */
+
+#include <errno.h>
+#include <sys/prctl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <string.h>
+
+#include "kselftest_harness.h"
+
+#define AREA_SIZE 1024
+
+#define GOOD_NAME "goodname"
+#define BAD_NAME "badname\1"
+
+#ifndef PR_SET_VMA
+#define PR_SET_VMA 0x53564d41
+#define PR_SET_VMA_ANON_NAME 0
+#endif
+
+
+int rename_vma(unsigned long addr, unsigned long size, char *name)
+{
+	int res;
+
+	res = prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, addr, size, name);
+	if (res < 0)
+		return -errno;
+	return res;
+}
+
+int was_renaming_successful(char *target_name, unsigned long ptr)
+{
+	FILE *maps_file;
+
+	char line_buf[512], name[128], mode[8];
+	unsigned long start_addr, end_addr, offset;
+	unsigned int major_id, minor_id, node_id;
+
+	char target_buf[128];
+	int res = 0, sscanf_res;
+
+	// The entry name in maps will be in format [anon:<target_name>]
+	sprintf(target_buf, "[anon:%s]", target_name);
+	maps_file = fopen("/proc/self/maps", "r");
+	if (!maps_file) {
+		printf("## /proc/self/maps file opening error\n");
+		return 0;
+	}
+
+	// Parse the maps file to find the entry we renamed
+	while (fgets(line_buf, sizeof(line_buf), maps_file)) {
+		sscanf_res = sscanf(line_buf, "%lx-%lx %7s %lx %u:%u %u %s", &start_addr,
+					&end_addr, mode, &offset, &major_id,
+					&minor_id, &node_id, name);
+		if (sscanf_res == EOF) {
+			res = 0;
+			printf("## EOF while parsing the maps file\n");
+			break;
+		}
+		if (!strcmp(name, target_buf) && start_addr == ptr) {
+			res = 1;
+			break;
+		}
+	}
+	fclose(maps_file);
+	return res;
+}
+
+FIXTURE(vma) {
+	void *ptr_anon, *ptr_not_anon;
+};
+
+FIXTURE_SETUP(vma) {
+	self->ptr_anon = mmap(NULL, AREA_SIZE, PROT_READ | PROT_WRITE,
+					MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+	ASSERT_NE(self->ptr_anon, NULL);
+	self->ptr_not_anon = mmap(NULL, AREA_SIZE, PROT_READ | PROT_WRITE,
+					MAP_PRIVATE, 0, 0);
+	ASSERT_NE(self->ptr_not_anon, NULL);
+}
+
+FIXTURE_TEARDOWN(vma) {
+	munmap(self->ptr_anon, AREA_SIZE);
+	munmap(self->ptr_not_anon, AREA_SIZE);
+}
+
+TEST_F(vma, renaming) {
+	TH_LOG("Try to rename the VMA with correct parameters");
+	EXPECT_GE(rename_vma((unsigned long)self->ptr_anon, AREA_SIZE, GOOD_NAME), 0);
+	EXPECT_TRUE(was_renaming_successful(GOOD_NAME, (unsigned long)self->ptr_anon));
+
+	TH_LOG("Try to pass invalid name (with non-printable character \\1) to rename the VMA");
+	EXPECT_EQ(rename_vma((unsigned long)self->ptr_anon, AREA_SIZE, BAD_NAME), -EINVAL);
+
+	TH_LOG("Try to rename non-anonymous VMA");
+	EXPECT_EQ(rename_vma((unsigned long) self->ptr_not_anon, AREA_SIZE, GOOD_NAME), -EINVAL);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/prctl/set-process-name.c b/tools/testing/selftests/prctl/set-process-name.c
new file mode 100644
index 000000000000..3f7b146d36df
--- /dev/null
+++ b/tools/testing/selftests/prctl/set-process-name.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This test covers the PR_SET_NAME functionality of prctl calls
+ */
+
+#include <errno.h>
+#include <sys/prctl.h>
+#include <string.h>
+
+#include "kselftest_harness.h"
+
+#define CHANGE_NAME "changename"
+#define EMPTY_NAME ""
+#define TASK_COMM_LEN 16
+#define MAX_PATH_LEN 50
+
+int set_name(char *name)
+{
+	int res;
+
+	res = prctl(PR_SET_NAME, name, NULL, NULL, NULL);
+
+	if (res < 0)
+		return -errno;
+	return res;
+}
+
+int check_is_name_correct(char *check_name)
+{
+	char name[TASK_COMM_LEN];
+	int res;
+
+	res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
+
+	if (res < 0)
+		return -errno;
+
+	return !strcmp(name, check_name);
+}
+
+int check_null_pointer(char *check_name)
+{
+	char *name = NULL;
+	int res;
+
+	res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
+
+	return res;
+}
+
+int check_name(void)
+{
+
+	int pid;
+
+	pid = getpid();
+	FILE *fptr = NULL;
+	char path[MAX_PATH_LEN] = {};
+	char name[TASK_COMM_LEN] = {};
+	char output[TASK_COMM_LEN] = {};
+	int j;
+
+	j = snprintf(path, MAX_PATH_LEN, "/proc/self/task/%d/comm", pid);
+	fptr = fopen(path, "r");
+	if (!fptr)
+		return -EIO;
+
+	fscanf(fptr, "%s", output);
+	if (ferror(fptr))
+		return -EIO;
+
+	int res = prctl(PR_GET_NAME, name, NULL, NULL, NULL);
+
+	if (res < 0)
+		return -errno;
+
+	return !strcmp(output, name);
+}
+
+TEST(rename_process) {
+
+	EXPECT_GE(set_name(CHANGE_NAME), 0);
+	EXPECT_TRUE(check_is_name_correct(CHANGE_NAME));
+
+	EXPECT_GE(set_name(EMPTY_NAME), 0);
+	EXPECT_TRUE(check_is_name_correct(EMPTY_NAME));
+
+	EXPECT_GE(set_name(CHANGE_NAME), 0);
+	EXPECT_LT(check_null_pointer(CHANGE_NAME), 0);
+
+	EXPECT_TRUE(check_name());
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/proc/.gitignore b/tools/testing/selftests/proc/.gitignore
new file mode 100644
index 000000000000..9c9735570abf
--- /dev/null
+++ b/tools/testing/selftests/proc/.gitignore
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/fd-001-lookup
+/fd-002-posix-eq
+/fd-003-kthread
+/proc-2-is-kthread
+/proc-fsconfig-hidepid
+/proc-loadavg-001
+/proc-maps-race
+/proc-multiple-procfs
+/proc-net-dev-lseek
+/proc-empty-vm
+/proc-pid-vm
+/proc-self-map-files-001
+/proc-self-map-files-002
+/proc-self-isnt-kthread
+/proc-self-syscall
+/proc-self-wchan
+/proc-subset-pid
+/proc-tid0
+/proc-uptime-001
+/proc-uptime-002
+/proc-pidns
+/read
+/self
+/setns-dcache
+/setns-sysvipc
+/thread-self
diff --git a/tools/testing/selftests/proc/Makefile b/tools/testing/selftests/proc/Makefile
new file mode 100644
index 000000000000..a7de2bb6d8be
--- /dev/null
+++ b/tools/testing/selftests/proc/Makefile
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -Wall -O2 -Wno-unused-function
+CFLAGS += $(TOOLS_INCLUDES)
+LDFLAGS += -pthread
+
+TEST_GEN_PROGS :=
+TEST_GEN_PROGS += fd-001-lookup
+TEST_GEN_PROGS += fd-002-posix-eq
+TEST_GEN_PROGS += fd-003-kthread
+TEST_GEN_PROGS += proc-2-is-kthread
+TEST_GEN_PROGS += proc-loadavg-001
+TEST_GEN_PROGS += proc-maps-race
+TEST_GEN_PROGS += proc-net-dev-lseek
+TEST_GEN_PROGS += proc-empty-vm
+TEST_GEN_PROGS += proc-pid-vm
+TEST_GEN_PROGS += proc-self-map-files-001
+TEST_GEN_PROGS += proc-self-map-files-002
+TEST_GEN_PROGS += proc-self-isnt-kthread
+TEST_GEN_PROGS += proc-self-syscall
+TEST_GEN_PROGS += proc-self-wchan
+TEST_GEN_PROGS += proc-subset-pid
+TEST_GEN_PROGS += proc-tid0
+TEST_GEN_PROGS += proc-uptime-001
+TEST_GEN_PROGS += proc-uptime-002
+TEST_GEN_PROGS += read
+TEST_GEN_PROGS += self
+TEST_GEN_PROGS += setns-dcache
+TEST_GEN_PROGS += setns-sysvipc
+TEST_GEN_PROGS += thread-self
+TEST_GEN_PROGS += proc-multiple-procfs
+TEST_GEN_PROGS += proc-fsconfig-hidepid
+TEST_GEN_PROGS += proc-pidns
+
+include ../lib.mk
diff --git a/tools/testing/selftests/proc/config b/tools/testing/selftests/proc/config
new file mode 100644
index 000000000000..68fbd2b35884
--- /dev/null
+++ b/tools/testing/selftests/proc/config
@@ -0,0 +1 @@
+CONFIG_PROC_FS=y
diff --git a/tools/testing/selftests/proc/fd-001-lookup.c b/tools/testing/selftests/proc/fd-001-lookup.c
new file mode 100644
index 000000000000..60d7948e7124
--- /dev/null
+++ b/tools/testing/selftests/proc/fd-001-lookup.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test /proc/*/fd lookup.
+
+#undef NDEBUG
+#include <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "proc.h"
+
+/* lstat(2) has more "coverage" in case non-symlink pops up somehow. */
+static void test_lookup_pass(const char *pathname)
+{
+	struct stat st;
+	ssize_t rv;
+
+	memset(&st, 0, sizeof(struct stat));
+	rv = lstat(pathname, &st);
+	assert(rv == 0);
+	assert(S_ISLNK(st.st_mode));
+}
+
+static void test_lookup_fail(const char *pathname)
+{
+	struct stat st;
+	ssize_t rv;
+
+	rv = lstat(pathname, &st);
+	assert(rv == -1 && errno == ENOENT);
+}
+
+static void test_lookup(unsigned int fd)
+{
+	char buf[64];
+	unsigned int c;
+	unsigned int u;
+	int i;
+
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%u", fd);
+	test_lookup_pass(buf);
+
+	/* leading junk */
+	for (c = 1; c <= 255; c++) {
+		if (c == '/')
+			continue;
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%c%u", c, fd);
+		test_lookup_fail(buf);
+	}
+
+	/* trailing junk */
+	for (c = 1; c <= 255; c++) {
+		if (c == '/')
+			continue;
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%u%c", fd, c);
+		test_lookup_fail(buf);
+	}
+
+	for (i = INT_MIN; i < INT_MIN + 1024; i++) {
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%d", i);
+		test_lookup_fail(buf);
+	}
+	for (i = -1024; i < 0; i++) {
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%d", i);
+		test_lookup_fail(buf);
+	}
+	for (u = INT_MAX - 1024; u <= (unsigned int)INT_MAX + 1024; u++) {
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%u", u);
+		test_lookup_fail(buf);
+	}
+	for (u = UINT_MAX - 1024; u != 0; u++) {
+		snprintf(buf, sizeof(buf), "/proc/self/fd/%u", u);
+		test_lookup_fail(buf);
+	}
+
+
+}
+
+int main(void)
+{
+	struct dirent *de;
+	unsigned int fd, target_fd;
+
+	if (unshare(CLONE_FILES) == -1)
+		return 1;
+
+	/* Wipe fdtable. */
+	do {
+		DIR *d;
+
+		d = opendir("/proc/self/fd");
+		if (!d)
+			return 1;
+
+		de = xreaddir(d);
+		assert(de->d_type == DT_DIR);
+		assert(streq(de->d_name, "."));
+
+		de = xreaddir(d);
+		assert(de->d_type == DT_DIR);
+		assert(streq(de->d_name, ".."));
+next:
+		de = xreaddir(d);
+		if (de) {
+			unsigned long long fd_ull;
+			unsigned int fd;
+			char *end;
+
+			assert(de->d_type == DT_LNK);
+
+			fd_ull = xstrtoull(de->d_name, &end);
+			assert(*end == '\0');
+			assert(fd_ull == (unsigned int)fd_ull);
+
+			fd = fd_ull;
+			if (fd == dirfd(d))
+				goto next;
+			close(fd);
+		}
+
+		closedir(d);
+	} while (de);
+
+	/* Now fdtable is clean. */
+
+	fd = open("/", O_PATH|O_DIRECTORY);
+	assert(fd == 0);
+	test_lookup(fd);
+	close(fd);
+
+	/* Clean again! */
+
+	fd = open("/", O_PATH|O_DIRECTORY);
+	assert(fd == 0);
+	/* Default RLIMIT_NOFILE-1 */
+	target_fd = 1023;
+	while (target_fd > 0) {
+		if (dup2(fd, target_fd) == target_fd)
+			break;
+		target_fd /= 2;
+	}
+	assert(target_fd > 0);
+	close(fd);
+	test_lookup(target_fd);
+	close(target_fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/fd-002-posix-eq.c b/tools/testing/selftests/proc/fd-002-posix-eq.c
new file mode 100644
index 000000000000..417322ca9c53
--- /dev/null
+++ b/tools/testing/selftests/proc/fd-002-posix-eq.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that open(/proc/*/fd/*) opens the same file.
+#undef NDEBUG
+#include <assert.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int main(void)
+{
+	int fd0, fd1, fd2;
+	struct stat st0, st1, st2;
+	char buf[64];
+	int rv;
+
+	fd0 = open("/", O_DIRECTORY|O_RDONLY);
+	assert(fd0 >= 0);
+
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%u", fd0);
+	fd1 = open(buf, O_RDONLY);
+	assert(fd1 >= 0);
+
+	snprintf(buf, sizeof(buf), "/proc/thread-self/fd/%u", fd0);
+	fd2 = open(buf, O_RDONLY);
+	assert(fd2 >= 0);
+
+	rv = fstat(fd0, &st0);
+	assert(rv == 0);
+	rv = fstat(fd1, &st1);
+	assert(rv == 0);
+	rv = fstat(fd2, &st2);
+	assert(rv == 0);
+
+	assert(st0.st_dev == st1.st_dev);
+	assert(st0.st_ino == st1.st_ino);
+
+	assert(st0.st_dev == st2.st_dev);
+	assert(st0.st_ino == st2.st_ino);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/fd-003-kthread.c b/tools/testing/selftests/proc/fd-003-kthread.c
new file mode 100644
index 000000000000..dc591f97b63d
--- /dev/null
+++ b/tools/testing/selftests/proc/fd-003-kthread.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that /proc/$KERNEL_THREAD/fd/ is empty.
+
+#undef NDEBUG
+#include <sys/syscall.h>
+#include <assert.h>
+#include <dirent.h>
+#include <limits.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "proc.h"
+
+#define PF_KHTREAD 0x00200000
+
+/*
+ * Test for kernel threadness atomically with openat().
+ *
+ * Return /proc/$PID/fd descriptor if process is kernel thread.
+ * Return -1 if a process is userspace process.
+ */
+static int kernel_thread_fd(unsigned int pid)
+{
+	unsigned int flags = 0;
+	char buf[4096];
+	int dir_fd, fd;
+	ssize_t rv;
+
+	snprintf(buf, sizeof(buf), "/proc/%u", pid);
+	dir_fd = open(buf, O_RDONLY|O_DIRECTORY);
+	if (dir_fd == -1)
+		return -1;
+
+	/*
+	 * Believe it or not, struct task_struct::flags is directly exposed
+	 * to userspace!
+	 */
+	fd = openat(dir_fd, "stat", O_RDONLY);
+	if (fd == -1) {
+		close(dir_fd);
+		return -1;
+	}
+	rv = read(fd, buf, sizeof(buf));
+	close(fd);
+	if (0 < rv && rv <= sizeof(buf)) {
+		unsigned long long flags_ull;
+		char *p, *end;
+		int i;
+
+		assert(buf[rv - 1] == '\n');
+		buf[rv - 1] = '\0';
+
+		/* Search backwards: ->comm can contain whitespace and ')'. */
+		for (i = 0; i < 43; i++) {
+			p = strrchr(buf, ' ');
+			assert(p);
+			*p = '\0';
+		}
+
+		p = strrchr(buf, ' ');
+		assert(p);
+
+		flags_ull = xstrtoull(p + 1, &end);
+		assert(*end == '\0');
+		assert(flags_ull == (unsigned int)flags_ull);
+
+		flags = flags_ull;
+	}
+
+	fd = -1;
+	if (flags & PF_KHTREAD) {
+		fd = openat(dir_fd, "fd", O_RDONLY|O_DIRECTORY);
+	}
+	close(dir_fd);
+	return fd;
+}
+
+static void test_readdir(int fd)
+{
+	DIR *d;
+	struct dirent *de;
+
+	d = fdopendir(fd);
+	assert(d);
+
+	de = xreaddir(d);
+	assert(streq(de->d_name, "."));
+	assert(de->d_type == DT_DIR);
+
+	de = xreaddir(d);
+	assert(streq(de->d_name, ".."));
+	assert(de->d_type == DT_DIR);
+
+	de = xreaddir(d);
+	assert(!de);
+}
+
+static inline int sys_statx(int dirfd, const char *pathname, int flags,
+			    unsigned int mask, void *stx)
+{
+	return syscall(SYS_statx, dirfd, pathname, flags, mask, stx);
+}
+
+static void test_lookup_fail(int fd, const char *pathname)
+{
+	char stx[256] __attribute__((aligned(8)));
+	int rv;
+
+	rv = sys_statx(fd, pathname, AT_SYMLINK_NOFOLLOW, 0, (void *)stx);
+	assert(rv == -1 && errno == ENOENT);
+}
+
+static void test_lookup(int fd)
+{
+	char buf[64];
+	unsigned int u;
+	int i;
+
+	for (i = INT_MIN; i < INT_MIN + 1024; i++) {
+		snprintf(buf, sizeof(buf), "%d", i);
+		test_lookup_fail(fd, buf);
+	}
+	for (i = -1024; i < 1024; i++) {
+		snprintf(buf, sizeof(buf), "%d", i);
+		test_lookup_fail(fd, buf);
+	}
+	for (u = INT_MAX - 1024; u < (unsigned int)INT_MAX + 1024; u++) {
+		snprintf(buf, sizeof(buf), "%u", u);
+		test_lookup_fail(fd, buf);
+	}
+	for (u = UINT_MAX - 1024; u != 0; u++) {
+		snprintf(buf, sizeof(buf), "%u", u);
+		test_lookup_fail(fd, buf);
+	}
+}
+
+int main(void)
+{
+	unsigned int pid;
+	int fd;
+
+	/*
+	 * In theory this will loop indefinitely if kernel threads are exiled
+	 * from /proc.
+	 *
+	 * Start with kthreadd.
+	 */
+	pid = 2;
+	while ((fd = kernel_thread_fd(pid)) == -1 && pid < 1024) {
+		pid++;
+	}
+	/* EACCES if run as non-root. */
+	if (pid >= 1024)
+		return 1;
+
+	test_readdir(fd);
+	test_lookup(fd);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-2-is-kthread.c b/tools/testing/selftests/proc/proc-2-is-kthread.c
new file mode 100644
index 000000000000..f13668fb482e
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-2-is-kthread.c
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2024 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test that kernel thread is reported as such. */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(void)
+{
+	/*
+	 * The following solutions don't really work:
+	 *
+	 * 1) jit kernel module which creates kernel thread:
+	 * test becomes arch-specific,
+	 * problems with mandatory module signing,
+	 * problems with lockdown mode,
+	 * doesn't work with CONFIG_MODULES=n at all,
+	 * kthread creation API is formally unstable internal kernel API,
+	 * need a mechanism to report test kernel thread's PID back,
+	 *
+	 * 2) ksoftirqd/0 and kswapd0 look like stable enough kernel threads,
+	 * but their PIDs are unstable.
+	 *
+	 * Check against kthreadd which always seem to exist under pid 2.
+	 */
+	int fd = open("/proc/2/status", O_RDONLY);
+	assert(fd >= 0);
+
+	char buf[4096];
+	ssize_t rv = read(fd, buf, sizeof(buf));
+	assert(0 <= rv && rv < sizeof(buf));
+	buf[rv] = '\0';
+
+	assert(strstr(buf, "Kthread:\t1\n"));
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-empty-vm.c b/tools/testing/selftests/proc/proc-empty-vm.c
new file mode 100644
index 000000000000..b3f898aab4ab
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-empty-vm.c
@@ -0,0 +1,541 @@
+#if defined __amd64__ || defined __i386__
+/*
+ * Copyright (c) 2022 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Create a process without mappings by unmapping everything at once and
+ * holding it with ptrace(2). See what happens to
+ *
+ *	/proc/${pid}/maps
+ *	/proc/${pid}/numa_maps
+ *	/proc/${pid}/smaps
+ *	/proc/${pid}/smaps_rollup
+ */
+#undef _GNU_SOURCE
+#define _GNU_SOURCE
+
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/ptrace.h>
+#include <sys/resource.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#ifdef __amd64__
+#define TEST_VSYSCALL
+#endif
+
+#if defined __amd64__
+	#ifndef SYS_pkey_alloc
+		#define SYS_pkey_alloc 330
+	#endif
+	#ifndef SYS_pkey_free
+		#define SYS_pkey_free 331
+	#endif
+#elif defined __i386__
+	#ifndef SYS_pkey_alloc
+		#define SYS_pkey_alloc 381
+	#endif
+	#ifndef SYS_pkey_free
+		#define SYS_pkey_free 382
+	#endif
+#else
+	#error "SYS_pkey_alloc"
+#endif
+
+static int g_protection_key_support;
+
+static int protection_key_support(void)
+{
+	long rv = syscall(SYS_pkey_alloc, 0, 0);
+	if (rv > 0) {
+		syscall(SYS_pkey_free, (int)rv);
+		return 1;
+	} else if (rv == -1 && errno == ENOSYS) {
+		return 0;
+	} else if (rv == -1 && errno == EINVAL) {
+		// ospke=n
+		return 0;
+	} else {
+		fprintf(stderr, "%s: error: rv %ld, errno %d\n", __func__, rv, errno);
+		exit(EXIT_FAILURE);
+	}
+}
+
+/*
+ * 0: vsyscall VMA doesn't exist	vsyscall=none
+ * 1: vsyscall VMA is --xp		vsyscall=xonly
+ * 2: vsyscall VMA is r-xp		vsyscall=emulate
+ */
+static volatile int g_vsyscall;
+static const char *g_proc_pid_maps_vsyscall;
+static const char *g_proc_pid_smaps_vsyscall;
+
+static const char proc_pid_maps_vsyscall_0[] = "";
+static const char proc_pid_maps_vsyscall_1[] =
+"ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0                  [vsyscall]\n";
+static const char proc_pid_maps_vsyscall_2[] =
+"ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]\n";
+
+static const char proc_pid_smaps_vsyscall_0[] = "";
+
+static const char proc_pid_smaps_vsyscall_1[] =
+"ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0                  [vsyscall]\n"
+"Size:                  4 kB\n"
+"KernelPageSize:        4 kB\n"
+"MMUPageSize:           4 kB\n"
+"Rss:                   0 kB\n"
+"Pss:                   0 kB\n"
+"Pss_Dirty:             0 kB\n"
+"Shared_Clean:          0 kB\n"
+"Shared_Dirty:          0 kB\n"
+"Private_Clean:         0 kB\n"
+"Private_Dirty:         0 kB\n"
+"Referenced:            0 kB\n"
+"Anonymous:             0 kB\n"
+"KSM:                   0 kB\n"
+"LazyFree:              0 kB\n"
+"AnonHugePages:         0 kB\n"
+"ShmemPmdMapped:        0 kB\n"
+"FilePmdMapped:         0 kB\n"
+"Shared_Hugetlb:        0 kB\n"
+"Private_Hugetlb:       0 kB\n"
+"Swap:                  0 kB\n"
+"SwapPss:               0 kB\n"
+"Locked:                0 kB\n"
+"THPeligible:           0\n"
+;
+
+static const char proc_pid_smaps_vsyscall_2[] =
+"ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]\n"
+"Size:                  4 kB\n"
+"KernelPageSize:        4 kB\n"
+"MMUPageSize:           4 kB\n"
+"Rss:                   0 kB\n"
+"Pss:                   0 kB\n"
+"Pss_Dirty:             0 kB\n"
+"Shared_Clean:          0 kB\n"
+"Shared_Dirty:          0 kB\n"
+"Private_Clean:         0 kB\n"
+"Private_Dirty:         0 kB\n"
+"Referenced:            0 kB\n"
+"Anonymous:             0 kB\n"
+"KSM:                   0 kB\n"
+"LazyFree:              0 kB\n"
+"AnonHugePages:         0 kB\n"
+"ShmemPmdMapped:        0 kB\n"
+"FilePmdMapped:         0 kB\n"
+"Shared_Hugetlb:        0 kB\n"
+"Private_Hugetlb:       0 kB\n"
+"Swap:                  0 kB\n"
+"SwapPss:               0 kB\n"
+"Locked:                0 kB\n"
+"THPeligible:           0\n"
+;
+
+static void sigaction_SIGSEGV(int _, siginfo_t *__, void *___)
+{
+	_exit(EXIT_FAILURE);
+}
+
+#ifdef TEST_VSYSCALL
+static void sigaction_SIGSEGV_vsyscall(int _, siginfo_t *__, void *___)
+{
+	_exit(g_vsyscall);
+}
+
+/*
+ * vsyscall page can't be unmapped, probe it directly.
+ */
+static void vsyscall(void)
+{
+	pid_t pid;
+	int wstatus;
+
+	pid = fork();
+	if (pid < 0) {
+		fprintf(stderr, "fork, errno %d\n", errno);
+		exit(1);
+	}
+	if (pid == 0) {
+		setrlimit(RLIMIT_CORE, &(struct rlimit){});
+
+		/* Hide "segfault at ffffffffff600000" messages. */
+		struct sigaction act = {};
+		act.sa_flags = SA_SIGINFO;
+		act.sa_sigaction = sigaction_SIGSEGV_vsyscall;
+		sigaction(SIGSEGV, &act, NULL);
+
+		g_vsyscall = 0;
+		/* gettimeofday(NULL, NULL); */
+		uint64_t rax = 0xffffffffff600000;
+		asm volatile (
+			"call *%[rax]"
+			: [rax] "+a" (rax)
+			: "D" (NULL), "S" (NULL)
+			: "rcx", "r11"
+		);
+
+		g_vsyscall = 1;
+		*(volatile int *)0xffffffffff600000UL;
+
+		g_vsyscall = 2;
+		exit(g_vsyscall);
+	}
+	waitpid(pid, &wstatus, 0);
+	if (WIFEXITED(wstatus)) {
+		g_vsyscall = WEXITSTATUS(wstatus);
+	} else {
+		fprintf(stderr, "error: vsyscall wstatus %08x\n", wstatus);
+		exit(1);
+	}
+}
+#endif
+
+static int test_proc_pid_maps(pid_t pid)
+{
+	char buf[4096];
+	snprintf(buf, sizeof(buf), "/proc/%u/maps", pid);
+	int fd = open(buf, O_RDONLY);
+	if (fd == -1) {
+		perror("open /proc/${pid}/maps");
+		return EXIT_FAILURE;
+	} else {
+		ssize_t rv = read(fd, buf, sizeof(buf));
+		close(fd);
+		if (g_vsyscall == 0) {
+			assert(rv == 0);
+		} else {
+			size_t len = strlen(g_proc_pid_maps_vsyscall);
+			assert(rv == len);
+			assert(memcmp(buf, g_proc_pid_maps_vsyscall, len) == 0);
+		}
+		return EXIT_SUCCESS;
+	}
+}
+
+static int test_proc_pid_numa_maps(pid_t pid)
+{
+	char buf[4096];
+	snprintf(buf, sizeof(buf), "/proc/%u/numa_maps", pid);
+	int fd = open(buf, O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT) {
+			/*
+			 * /proc/${pid}/numa_maps is under CONFIG_NUMA,
+			 * it doesn't necessarily exist.
+			 */
+			return EXIT_SUCCESS;
+		}
+		perror("open /proc/${pid}/numa_maps");
+		return EXIT_FAILURE;
+	} else {
+		ssize_t rv = read(fd, buf, sizeof(buf));
+		close(fd);
+		assert(rv == 0);
+		return EXIT_SUCCESS;
+	}
+}
+
+static int test_proc_pid_smaps(pid_t pid)
+{
+	char buf[4096];
+	snprintf(buf, sizeof(buf), "/proc/%u/smaps", pid);
+	int fd = open(buf, O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT) {
+			/*
+			 * /proc/${pid}/smaps is under CONFIG_PROC_PAGE_MONITOR,
+			 * it doesn't necessarily exist.
+			 */
+			return EXIT_SUCCESS;
+		}
+		perror("open /proc/${pid}/smaps");
+		return EXIT_FAILURE;
+	}
+	ssize_t rv = read(fd, buf, sizeof(buf));
+	close(fd);
+
+	assert(0 <= rv);
+	assert(rv <= sizeof(buf));
+
+	if (g_vsyscall == 0) {
+		assert(rv == 0);
+	} else {
+		size_t len = strlen(g_proc_pid_smaps_vsyscall);
+		assert(rv > len);
+		assert(memcmp(buf, g_proc_pid_smaps_vsyscall, len) == 0);
+
+		if (g_protection_key_support) {
+#define PROTECTION_KEY "ProtectionKey:         0\n"
+			assert(memmem(buf, rv, PROTECTION_KEY, strlen(PROTECTION_KEY)));
+		}
+	}
+
+	return EXIT_SUCCESS;
+}
+
+static const char g_smaps_rollup[] =
+"00000000-00000000 ---p 00000000 00:00 0                                  [rollup]\n"
+"Rss:                   0 kB\n"
+"Pss:                   0 kB\n"
+"Pss_Dirty:             0 kB\n"
+"Pss_Anon:              0 kB\n"
+"Pss_File:              0 kB\n"
+"Pss_Shmem:             0 kB\n"
+"Shared_Clean:          0 kB\n"
+"Shared_Dirty:          0 kB\n"
+"Private_Clean:         0 kB\n"
+"Private_Dirty:         0 kB\n"
+"Referenced:            0 kB\n"
+"Anonymous:             0 kB\n"
+"KSM:                   0 kB\n"
+"LazyFree:              0 kB\n"
+"AnonHugePages:         0 kB\n"
+"ShmemPmdMapped:        0 kB\n"
+"FilePmdMapped:         0 kB\n"
+"Shared_Hugetlb:        0 kB\n"
+"Private_Hugetlb:       0 kB\n"
+"Swap:                  0 kB\n"
+"SwapPss:               0 kB\n"
+"Locked:                0 kB\n"
+;
+
+static int test_proc_pid_smaps_rollup(pid_t pid)
+{
+	char buf[4096];
+	snprintf(buf, sizeof(buf), "/proc/%u/smaps_rollup", pid);
+	int fd = open(buf, O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT) {
+			/*
+			 * /proc/${pid}/smaps_rollup is under CONFIG_PROC_PAGE_MONITOR,
+			 * it doesn't necessarily exist.
+			 */
+			return EXIT_SUCCESS;
+		}
+		perror("open /proc/${pid}/smaps_rollup");
+		return EXIT_FAILURE;
+	} else {
+		ssize_t rv = read(fd, buf, sizeof(buf));
+		close(fd);
+		assert(rv == sizeof(g_smaps_rollup) - 1);
+		assert(memcmp(buf, g_smaps_rollup, sizeof(g_smaps_rollup) - 1) == 0);
+		return EXIT_SUCCESS;
+	}
+}
+
+static const char *parse_u64(const char *p, const char *const end, uint64_t *rv)
+{
+	*rv = 0;
+	for (; p != end; p += 1) {
+		if ('0' <= *p && *p <= '9') {
+			assert(!__builtin_mul_overflow(*rv, 10, rv));
+			assert(!__builtin_add_overflow(*rv, *p - '0', rv));
+		} else {
+			break;
+		}
+	}
+	assert(p != end);
+	return p;
+}
+
+/*
+ * There seems to be 2 types of valid output:
+ * "0 A A B 0 0 0\n" for dynamic exeuctables,
+ * "0 0 0 B 0 0 0\n" for static executables.
+ */
+static int test_proc_pid_statm(pid_t pid)
+{
+	char buf[4096];
+	snprintf(buf, sizeof(buf), "/proc/%u/statm", pid);
+	int fd = open(buf, O_RDONLY);
+	if (fd == -1) {
+		perror("open /proc/${pid}/statm");
+		return EXIT_FAILURE;
+	}
+
+	ssize_t rv = read(fd, buf, sizeof(buf));
+	close(fd);
+
+	assert(rv >= 0);
+	assert(rv <= sizeof(buf));
+
+	const char *p = buf;
+	const char *const end = p + rv;
+
+	/* size */
+	assert(p != end && *p++ == '0');
+	assert(p != end && *p++ == ' ');
+
+	uint64_t resident;
+	p = parse_u64(p, end, &resident);
+	assert(p != end && *p++ == ' ');
+
+	uint64_t shared;
+	p = parse_u64(p, end, &shared);
+	assert(p != end && *p++ == ' ');
+
+	uint64_t text;
+	p = parse_u64(p, end, &text);
+	assert(p != end && *p++ == ' ');
+
+	assert(p != end && *p++ == '0');
+	assert(p != end && *p++ == ' ');
+
+	/* data */
+	assert(p != end && *p++ == '0');
+	assert(p != end && *p++ == ' ');
+
+	assert(p != end && *p++ == '0');
+	assert(p != end && *p++ == '\n');
+
+	assert(p == end);
+
+	/*
+	 * "text" is "mm->end_code - mm->start_code" at execve(2) time.
+	 * munmap() doesn't change it. It can be anything (just link
+	 * statically). It can't be 0 because executing to this point
+	 * implies at least 1 page of code.
+	 */
+	assert(text > 0);
+
+	/*
+	 * These two are always equal. Always 0 for statically linked
+	 * executables and sometimes 0 for dynamically linked executables.
+	 * There is no way to tell one from another without parsing ELF
+	 * which is too much for this test.
+	 */
+	assert(resident == shared);
+
+	return EXIT_SUCCESS;
+}
+
+int main(void)
+{
+	int rv = EXIT_SUCCESS;
+
+#ifdef TEST_VSYSCALL
+	vsyscall();
+#endif
+
+	switch (g_vsyscall) {
+	case 0:
+		g_proc_pid_maps_vsyscall  = proc_pid_maps_vsyscall_0;
+		g_proc_pid_smaps_vsyscall = proc_pid_smaps_vsyscall_0;
+		break;
+	case 1:
+		g_proc_pid_maps_vsyscall  = proc_pid_maps_vsyscall_1;
+		g_proc_pid_smaps_vsyscall = proc_pid_smaps_vsyscall_1;
+		break;
+	case 2:
+		g_proc_pid_maps_vsyscall  = proc_pid_maps_vsyscall_2;
+		g_proc_pid_smaps_vsyscall = proc_pid_smaps_vsyscall_2;
+		break;
+	default:
+		abort();
+	}
+
+	g_protection_key_support = protection_key_support();
+
+	pid_t pid = fork();
+	if (pid == -1) {
+		perror("fork");
+		return EXIT_FAILURE;
+	} else if (pid == 0) {
+		rv = ptrace(PTRACE_TRACEME, 0, NULL, NULL);
+		if (rv != 0) {
+			if (errno == EPERM) {
+				fprintf(stderr,
+"Did you know? ptrace(PTRACE_TRACEME) doesn't work under strace.\n"
+				);
+				kill(getppid(), SIGTERM);
+				return EXIT_FAILURE;
+			}
+			perror("ptrace PTRACE_TRACEME");
+			return EXIT_FAILURE;
+		}
+
+		/*
+		 * Hide "segfault at ..." messages. Signal handler won't run.
+		 */
+		struct sigaction act = {};
+		act.sa_flags = SA_SIGINFO;
+		act.sa_sigaction = sigaction_SIGSEGV;
+		sigaction(SIGSEGV, &act, NULL);
+
+#ifdef __amd64__
+		munmap(NULL, ((size_t)1 << 47) - 4096);
+#elif defined __i386__
+		{
+			size_t len;
+
+			for (len = -4096;; len -= 4096) {
+				munmap(NULL, len);
+			}
+		}
+#else
+#error "implement 'unmap everything'"
+#endif
+		return EXIT_FAILURE;
+	} else {
+		/*
+		 * TODO find reliable way to signal parent that munmap(2) completed.
+		 * Child can't do it directly because it effectively doesn't exist
+		 * anymore. Looking at child's VM files isn't 100% reliable either:
+		 * due to a bug they may not become empty or empty-like.
+		 */
+		sleep(1);
+
+		if (rv == EXIT_SUCCESS) {
+			rv = test_proc_pid_maps(pid);
+		}
+		if (rv == EXIT_SUCCESS) {
+			rv = test_proc_pid_numa_maps(pid);
+		}
+		if (rv == EXIT_SUCCESS) {
+			rv = test_proc_pid_smaps(pid);
+		}
+		if (rv == EXIT_SUCCESS) {
+			rv = test_proc_pid_smaps_rollup(pid);
+		}
+		if (rv == EXIT_SUCCESS) {
+			rv = test_proc_pid_statm(pid);
+		}
+
+		/* Cut the rope. */
+		int wstatus;
+		waitpid(pid, &wstatus, 0);
+		assert(WIFSTOPPED(wstatus));
+		assert(WSTOPSIG(wstatus) == SIGSEGV);
+	}
+
+	return rv;
+}
+#else
+int main(void)
+{
+	return 4;
+}
+#endif
diff --git a/tools/testing/selftests/proc/proc-fsconfig-hidepid.c b/tools/testing/selftests/proc/proc-fsconfig-hidepid.c
new file mode 100644
index 000000000000..b9af8f537185
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-fsconfig-hidepid.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright © 2020 Alexey Gladkov <gladkov.alexey@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <linux/mount.h>
+#include <linux/unistd.h>
+
+static inline int fsopen(const char *fsname, unsigned int flags)
+{
+	return syscall(__NR_fsopen, fsname, flags);
+}
+
+static inline int fsconfig(int fd, unsigned int cmd, const char *key, const void *val, int aux)
+{
+	return syscall(__NR_fsconfig, fd, cmd, key, val, aux);
+}
+
+int main(void)
+{
+	int fsfd, ret;
+	int hidepid = 2;
+
+	assert((fsfd = fsopen("proc", 0)) != -1);
+
+	ret = fsconfig(fsfd, FSCONFIG_SET_BINARY, "hidepid", &hidepid, 0);
+	assert(ret == -1);
+	assert(errno == EINVAL);
+
+	assert(!fsconfig(fsfd, FSCONFIG_SET_STRING, "hidepid", "2", 0));
+	assert(!fsconfig(fsfd, FSCONFIG_SET_STRING, "hidepid", "invisible", 0));
+
+	assert(!close(fsfd));
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-loadavg-001.c b/tools/testing/selftests/proc/proc-loadavg-001.c
new file mode 100644
index 000000000000..fb4fe9188806
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-loadavg-001.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test that /proc/loadavg correctly reports last pid in pid namespace. */
+#include <errno.h>
+#include <sched.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+int main(void)
+{
+	pid_t pid;
+	int wstatus;
+
+	if (unshare(CLONE_NEWPID) == -1) {
+		if (errno == ENOSYS || errno == EPERM)
+			return 4;
+		return 1;
+	}
+
+	pid = fork();
+	if (pid == -1)
+		return 1;
+	if (pid == 0) {
+		char buf[128], *p;
+		int fd;
+		ssize_t rv;
+
+		fd = open("/proc/loadavg" , O_RDONLY);
+		if (fd == -1)
+			return 1;
+		rv = read(fd, buf, sizeof(buf));
+		if (rv < 3)
+			return 1;
+		p = buf + rv;
+
+		/* pid 1 */
+		if (!(p[-3] == ' ' && p[-2] == '1' && p[-1] == '\n'))
+			return 1;
+
+		pid = fork();
+		if (pid == -1)
+			return 1;
+		if (pid == 0)
+			return 0;
+		if (waitpid(pid, NULL, 0) == -1)
+			return 1;
+
+		lseek(fd, 0, SEEK_SET);
+		rv = read(fd, buf, sizeof(buf));
+		if (rv < 3)
+			return 1;
+		p = buf + rv;
+
+		/* pid 2 */
+		if (!(p[-3] == ' ' && p[-2] == '2' && p[-1] == '\n'))
+			return 1;
+
+		return 0;
+	}
+
+	if (waitpid(pid, &wstatus, 0) == -1)
+		return 1;
+	if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) == 0)
+		return 0;
+	return 1;
+}
diff --git a/tools/testing/selftests/proc/proc-maps-race.c b/tools/testing/selftests/proc/proc-maps-race.c
new file mode 100644
index 000000000000..a734553718da
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-maps-race.c
@@ -0,0 +1,806 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2022 Google LLC.
+ * Author: Suren Baghdasaryan <surenb@google.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Fork a child that concurrently modifies address space while the main
+ * process is reading /proc/$PID/maps and verifying the results. Address
+ * space modifications include:
+ *     VMA splitting and merging
+ *
+ */
+#define _GNU_SOURCE
+#include "kselftest_harness.h"
+#include <errno.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <linux/fs.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+/* /proc/pid/maps parsing routines */
+struct page_content {
+	char *data;
+	ssize_t size;
+};
+
+#define LINE_MAX_SIZE		256
+
+struct line_content {
+	char text[LINE_MAX_SIZE];
+	unsigned long start_addr;
+	unsigned long end_addr;
+};
+
+enum test_state {
+	INIT,
+	CHILD_READY,
+	PARENT_READY,
+	SETUP_READY,
+	SETUP_MODIFY_MAPS,
+	SETUP_MAPS_MODIFIED,
+	SETUP_RESTORE_MAPS,
+	SETUP_MAPS_RESTORED,
+	TEST_READY,
+	TEST_DONE,
+};
+
+struct vma_modifier_info;
+
+FIXTURE(proc_maps_race)
+{
+	struct vma_modifier_info *mod_info;
+	struct page_content page1;
+	struct page_content page2;
+	struct line_content last_line;
+	struct line_content first_line;
+	unsigned long duration_sec;
+	int shared_mem_size;
+	int page_size;
+	int vma_count;
+	bool verbose;
+	int maps_fd;
+	pid_t pid;
+};
+
+typedef bool (*vma_modifier_op)(FIXTURE_DATA(proc_maps_race) *self);
+typedef bool (*vma_mod_result_check_op)(struct line_content *mod_last_line,
+					struct line_content *mod_first_line,
+					struct line_content *restored_last_line,
+					struct line_content *restored_first_line);
+
+struct vma_modifier_info {
+	int vma_count;
+	void *addr;
+	int prot;
+	void *next_addr;
+	vma_modifier_op vma_modify;
+	vma_modifier_op vma_restore;
+	vma_mod_result_check_op vma_mod_check;
+	pthread_mutex_t sync_lock;
+	pthread_cond_t sync_cond;
+	enum test_state curr_state;
+	bool exit;
+	void *child_mapped_addr[];
+};
+
+
+static bool read_two_pages(FIXTURE_DATA(proc_maps_race) *self)
+{
+	ssize_t  bytes_read;
+
+	if (lseek(self->maps_fd, 0, SEEK_SET) < 0)
+		return false;
+
+	bytes_read = read(self->maps_fd, self->page1.data, self->page_size);
+	if (bytes_read <= 0)
+		return false;
+
+	self->page1.size = bytes_read;
+
+	bytes_read = read(self->maps_fd, self->page2.data, self->page_size);
+	if (bytes_read <= 0)
+		return false;
+
+	self->page2.size = bytes_read;
+
+	return true;
+}
+
+static void copy_first_line(struct page_content *page, char *first_line)
+{
+	char *pos = strchr(page->data, '\n');
+
+	strncpy(first_line, page->data, pos - page->data);
+	first_line[pos - page->data] = '\0';
+}
+
+static void copy_last_line(struct page_content *page, char *last_line)
+{
+	/* Get the last line in the first page */
+	const char *end = page->data + page->size - 1;
+	/* skip last newline */
+	const char *pos = end - 1;
+
+	/* search previous newline */
+	while (pos[-1] != '\n')
+		pos--;
+	strncpy(last_line, pos, end - pos);
+	last_line[end - pos] = '\0';
+}
+
+/* Read the last line of the first page and the first line of the second page */
+static bool read_boundary_lines(FIXTURE_DATA(proc_maps_race) *self,
+				struct line_content *last_line,
+				struct line_content *first_line)
+{
+	if (!read_two_pages(self))
+		return false;
+
+	copy_last_line(&self->page1, last_line->text);
+	copy_first_line(&self->page2, first_line->text);
+
+	return sscanf(last_line->text, "%lx-%lx", &last_line->start_addr,
+		      &last_line->end_addr) == 2 &&
+	       sscanf(first_line->text, "%lx-%lx", &first_line->start_addr,
+		      &first_line->end_addr) == 2;
+}
+
+/* Thread synchronization routines */
+static void wait_for_state(struct vma_modifier_info *mod_info, enum test_state state)
+{
+	pthread_mutex_lock(&mod_info->sync_lock);
+	while (mod_info->curr_state != state)
+		pthread_cond_wait(&mod_info->sync_cond, &mod_info->sync_lock);
+	pthread_mutex_unlock(&mod_info->sync_lock);
+}
+
+static void signal_state(struct vma_modifier_info *mod_info, enum test_state state)
+{
+	pthread_mutex_lock(&mod_info->sync_lock);
+	mod_info->curr_state = state;
+	pthread_cond_signal(&mod_info->sync_cond);
+	pthread_mutex_unlock(&mod_info->sync_lock);
+}
+
+static void stop_vma_modifier(struct vma_modifier_info *mod_info)
+{
+	wait_for_state(mod_info, SETUP_READY);
+	mod_info->exit = true;
+	signal_state(mod_info, SETUP_MODIFY_MAPS);
+}
+
+static void print_first_lines(char *text, int nr)
+{
+	const char *end = text;
+
+	while (nr && (end = strchr(end, '\n')) != NULL) {
+		nr--;
+		end++;
+	}
+
+	if (end) {
+		int offs = end - text;
+
+		text[offs] = '\0';
+		printf("%s", text);
+		text[offs] = '\n';
+		printf("\n");
+	} else {
+		printf("%s", text);
+	}
+}
+
+static void print_last_lines(char *text, int nr)
+{
+	const char *start = text + strlen(text);
+
+	nr++; /* to ignore the last newline */
+	while (nr) {
+		while (start > text && *start != '\n')
+			start--;
+		nr--;
+		start--;
+	}
+	printf("%s", start);
+}
+
+static void print_boundaries(const char *title, FIXTURE_DATA(proc_maps_race) *self)
+{
+	if (!self->verbose)
+		return;
+
+	printf("%s", title);
+	/* Print 3 boundary lines from each page */
+	print_last_lines(self->page1.data, 3);
+	printf("-----------------page boundary-----------------\n");
+	print_first_lines(self->page2.data, 3);
+}
+
+static bool print_boundaries_on(bool condition, const char *title,
+				FIXTURE_DATA(proc_maps_race) *self)
+{
+	if (self->verbose && condition)
+		print_boundaries(title, self);
+
+	return condition;
+}
+
+static void report_test_start(const char *name, bool verbose)
+{
+	if (verbose)
+		printf("==== %s ====\n", name);
+}
+
+static struct timespec print_ts;
+
+static void start_test_loop(struct timespec *ts, bool verbose)
+{
+	if (verbose)
+		print_ts.tv_sec = ts->tv_sec;
+}
+
+static void end_test_iteration(struct timespec *ts, bool verbose)
+{
+	if (!verbose)
+		return;
+
+	/* Update every second */
+	if (print_ts.tv_sec == ts->tv_sec)
+		return;
+
+	printf(".");
+	fflush(stdout);
+	print_ts.tv_sec = ts->tv_sec;
+}
+
+static void end_test_loop(bool verbose)
+{
+	if (verbose)
+		printf("\n");
+}
+
+static bool capture_mod_pattern(FIXTURE_DATA(proc_maps_race) *self,
+				struct line_content *mod_last_line,
+				struct line_content *mod_first_line,
+				struct line_content *restored_last_line,
+				struct line_content *restored_first_line)
+{
+	print_boundaries("Before modification", self);
+
+	signal_state(self->mod_info, SETUP_MODIFY_MAPS);
+	wait_for_state(self->mod_info, SETUP_MAPS_MODIFIED);
+
+	/* Copy last line of the first page and first line of the last page */
+	if (!read_boundary_lines(self, mod_last_line, mod_first_line))
+		return false;
+
+	print_boundaries("After modification", self);
+
+	signal_state(self->mod_info, SETUP_RESTORE_MAPS);
+	wait_for_state(self->mod_info, SETUP_MAPS_RESTORED);
+
+	/* Copy last line of the first page and first line of the last page */
+	if (!read_boundary_lines(self, restored_last_line, restored_first_line))
+		return false;
+
+	print_boundaries("After restore", self);
+
+	if (!self->mod_info->vma_mod_check(mod_last_line, mod_first_line,
+					   restored_last_line, restored_first_line))
+		return false;
+
+	/*
+	 * The content of these lines after modify+resore should be the same
+	 * as the original.
+	 */
+	return strcmp(restored_last_line->text, self->last_line.text) == 0 &&
+	       strcmp(restored_first_line->text, self->first_line.text) == 0;
+}
+
+static bool query_addr_at(int maps_fd, void *addr,
+			  unsigned long *vma_start, unsigned long *vma_end)
+{
+	struct procmap_query q;
+
+	memset(&q, 0, sizeof(q));
+	q.size = sizeof(q);
+	/* Find the VMA at the split address */
+	q.query_addr = (unsigned long long)addr;
+	q.query_flags = 0;
+	if (ioctl(maps_fd, PROCMAP_QUERY, &q))
+		return false;
+
+	*vma_start = q.vma_start;
+	*vma_end = q.vma_end;
+
+	return true;
+}
+
+static inline bool split_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	return mmap(self->mod_info->addr, self->page_size, self->mod_info->prot | PROT_EXEC,
+		    MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0) != MAP_FAILED;
+}
+
+static inline bool merge_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	return mmap(self->mod_info->addr, self->page_size, self->mod_info->prot,
+		    MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0) != MAP_FAILED;
+}
+
+static inline bool check_split_result(struct line_content *mod_last_line,
+				      struct line_content *mod_first_line,
+				      struct line_content *restored_last_line,
+				      struct line_content *restored_first_line)
+{
+	/* Make sure vmas at the boundaries are changing */
+	return strcmp(mod_last_line->text, restored_last_line->text) != 0 &&
+	       strcmp(mod_first_line->text, restored_first_line->text) != 0;
+}
+
+static inline bool shrink_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	return mremap(self->mod_info->addr, self->page_size * 3,
+		      self->page_size, 0) != MAP_FAILED;
+}
+
+static inline bool expand_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	return mremap(self->mod_info->addr, self->page_size,
+		      self->page_size * 3, 0) != MAP_FAILED;
+}
+
+static inline bool check_shrink_result(struct line_content *mod_last_line,
+				       struct line_content *mod_first_line,
+				       struct line_content *restored_last_line,
+				       struct line_content *restored_first_line)
+{
+	/* Make sure only the last vma of the first page is changing */
+	return strcmp(mod_last_line->text, restored_last_line->text) != 0 &&
+	       strcmp(mod_first_line->text, restored_first_line->text) == 0;
+}
+
+static inline bool remap_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	/*
+	 * Remap the last page of the next vma into the middle of the vma.
+	 * This splits the current vma and the first and middle parts (the
+	 * parts at lower addresses) become the last vma objserved in the
+	 * first page and the first vma observed in the last page.
+	 */
+	return mremap(self->mod_info->next_addr + self->page_size * 2, self->page_size,
+		      self->page_size, MREMAP_FIXED | MREMAP_MAYMOVE | MREMAP_DONTUNMAP,
+		      self->mod_info->addr + self->page_size) != MAP_FAILED;
+}
+
+static inline bool patch_vma(FIXTURE_DATA(proc_maps_race) *self)
+{
+	return mprotect(self->mod_info->addr + self->page_size, self->page_size,
+			self->mod_info->prot) == 0;
+}
+
+static inline bool check_remap_result(struct line_content *mod_last_line,
+				      struct line_content *mod_first_line,
+				      struct line_content *restored_last_line,
+				      struct line_content *restored_first_line)
+{
+	/* Make sure vmas at the boundaries are changing */
+	return strcmp(mod_last_line->text, restored_last_line->text) != 0 &&
+	       strcmp(mod_first_line->text, restored_first_line->text) != 0;
+}
+
+FIXTURE_SETUP(proc_maps_race)
+{
+	const char *verbose = getenv("VERBOSE");
+	const char *duration = getenv("DURATION");
+	struct vma_modifier_info *mod_info;
+	pthread_mutexattr_t mutex_attr;
+	pthread_condattr_t cond_attr;
+	unsigned long duration_sec;
+	char fname[32];
+
+	self->page_size = (unsigned long)sysconf(_SC_PAGESIZE);
+	self->verbose = verbose && !strncmp(verbose, "1", 1);
+	duration_sec = duration ? atol(duration) : 0;
+	self->duration_sec = duration_sec ? duration_sec : 5UL;
+
+	/*
+	 * Have to map enough vmas for /proc/pid/maps to contain more than one
+	 * page worth of vmas. Assume at least 32 bytes per line in maps output
+	 */
+	self->vma_count = self->page_size / 32 + 1;
+	self->shared_mem_size = sizeof(struct vma_modifier_info) + self->vma_count * sizeof(void *);
+
+	/* map shared memory for communication with the child process */
+	self->mod_info = (struct vma_modifier_info *)mmap(NULL, self->shared_mem_size,
+				PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
+	ASSERT_NE(self->mod_info, MAP_FAILED);
+	mod_info = self->mod_info;
+
+	/* Initialize shared members */
+	pthread_mutexattr_init(&mutex_attr);
+	pthread_mutexattr_setpshared(&mutex_attr, PTHREAD_PROCESS_SHARED);
+	ASSERT_EQ(pthread_mutex_init(&mod_info->sync_lock, &mutex_attr), 0);
+	pthread_condattr_init(&cond_attr);
+	pthread_condattr_setpshared(&cond_attr, PTHREAD_PROCESS_SHARED);
+	ASSERT_EQ(pthread_cond_init(&mod_info->sync_cond, &cond_attr), 0);
+	mod_info->vma_count = self->vma_count;
+	mod_info->curr_state = INIT;
+	mod_info->exit = false;
+
+	self->pid = fork();
+	if (!self->pid) {
+		/* Child process modifying the address space */
+		int prot = PROT_READ | PROT_WRITE;
+		int i;
+
+		for (i = 0; i < mod_info->vma_count; i++) {
+			mod_info->child_mapped_addr[i] = mmap(NULL, self->page_size * 3, prot,
+					MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+			ASSERT_NE(mod_info->child_mapped_addr[i], MAP_FAILED);
+			/* change protection in adjacent maps to prevent merging */
+			prot ^= PROT_WRITE;
+		}
+		signal_state(mod_info, CHILD_READY);
+		wait_for_state(mod_info, PARENT_READY);
+		while (true) {
+			signal_state(mod_info, SETUP_READY);
+			wait_for_state(mod_info, SETUP_MODIFY_MAPS);
+			if (mod_info->exit)
+				break;
+
+			ASSERT_TRUE(mod_info->vma_modify(self));
+			signal_state(mod_info, SETUP_MAPS_MODIFIED);
+			wait_for_state(mod_info, SETUP_RESTORE_MAPS);
+			ASSERT_TRUE(mod_info->vma_restore(self));
+			signal_state(mod_info, SETUP_MAPS_RESTORED);
+
+			wait_for_state(mod_info, TEST_READY);
+			while (mod_info->curr_state != TEST_DONE) {
+				ASSERT_TRUE(mod_info->vma_modify(self));
+				ASSERT_TRUE(mod_info->vma_restore(self));
+			}
+		}
+		for (i = 0; i < mod_info->vma_count; i++)
+			munmap(mod_info->child_mapped_addr[i], self->page_size * 3);
+
+		exit(0);
+	}
+
+	sprintf(fname, "/proc/%d/maps", self->pid);
+	self->maps_fd = open(fname, O_RDONLY);
+	ASSERT_NE(self->maps_fd, -1);
+
+	/* Wait for the child to map the VMAs */
+	wait_for_state(mod_info, CHILD_READY);
+
+	/* Read first two pages */
+	self->page1.data = malloc(self->page_size);
+	ASSERT_NE(self->page1.data, NULL);
+	self->page2.data = malloc(self->page_size);
+	ASSERT_NE(self->page2.data, NULL);
+
+	ASSERT_TRUE(read_boundary_lines(self, &self->last_line, &self->first_line));
+
+	/*
+	 * Find the addresses corresponding to the last line in the first page
+	 * and the first line in the last page.
+	 */
+	mod_info->addr = NULL;
+	mod_info->next_addr = NULL;
+	for (int i = 0; i < mod_info->vma_count; i++) {
+		if (mod_info->child_mapped_addr[i] == (void *)self->last_line.start_addr) {
+			mod_info->addr = mod_info->child_mapped_addr[i];
+			mod_info->prot = PROT_READ;
+			/* Even VMAs have write permission */
+			if ((i % 2) == 0)
+				mod_info->prot |= PROT_WRITE;
+		} else if (mod_info->child_mapped_addr[i] == (void *)self->first_line.start_addr) {
+			mod_info->next_addr = mod_info->child_mapped_addr[i];
+		}
+
+		if (mod_info->addr && mod_info->next_addr)
+			break;
+	}
+	ASSERT_TRUE(mod_info->addr && mod_info->next_addr);
+
+	signal_state(mod_info, PARENT_READY);
+
+}
+
+FIXTURE_TEARDOWN(proc_maps_race)
+{
+	int status;
+
+	stop_vma_modifier(self->mod_info);
+
+	free(self->page2.data);
+	free(self->page1.data);
+
+	for (int i = 0; i < self->vma_count; i++)
+		munmap(self->mod_info->child_mapped_addr[i], self->page_size);
+	close(self->maps_fd);
+	waitpid(self->pid, &status, 0);
+	munmap(self->mod_info, self->shared_mem_size);
+}
+
+TEST_F(proc_maps_race, test_maps_tearing_from_split)
+{
+	struct vma_modifier_info *mod_info = self->mod_info;
+
+	struct line_content split_last_line;
+	struct line_content split_first_line;
+	struct line_content restored_last_line;
+	struct line_content restored_first_line;
+
+	wait_for_state(mod_info, SETUP_READY);
+
+	/* re-read the file to avoid using stale data from previous test */
+	ASSERT_TRUE(read_boundary_lines(self, &self->last_line, &self->first_line));
+
+	mod_info->vma_modify = split_vma;
+	mod_info->vma_restore = merge_vma;
+	mod_info->vma_mod_check = check_split_result;
+
+	report_test_start("Tearing from split", self->verbose);
+	ASSERT_TRUE(capture_mod_pattern(self, &split_last_line, &split_first_line,
+					&restored_last_line, &restored_first_line));
+
+	/* Now start concurrent modifications for self->duration_sec */
+	signal_state(mod_info, TEST_READY);
+
+	struct line_content new_last_line;
+	struct line_content new_first_line;
+	struct timespec start_ts, end_ts;
+
+	clock_gettime(CLOCK_MONOTONIC_COARSE, &start_ts);
+	start_test_loop(&start_ts, self->verbose);
+	do {
+		bool last_line_changed;
+		bool first_line_changed;
+		unsigned long vma_start;
+		unsigned long vma_end;
+
+		ASSERT_TRUE(read_boundary_lines(self, &new_last_line, &new_first_line));
+
+		/* Check if we read vmas after split */
+		if (!strcmp(new_last_line.text, split_last_line.text)) {
+			/*
+			 * The vmas should be consistent with split results,
+			 * however if vma was concurrently restored after a
+			 * split, it can be reported twice (first the original
+			 * split one, then the same vma but extended after the
+			 * merge) because we found it as the next vma again.
+			 * In that case new first line will be the same as the
+			 * last restored line.
+			 */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, split_first_line.text) &&
+					strcmp(new_first_line.text, restored_last_line.text),
+					"Split result invalid", self));
+		} else {
+			/* The vmas should be consistent with merge results */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_last_line.text, restored_last_line.text),
+					"Merge result invalid", self));
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, restored_first_line.text),
+					"Merge result invalid", self));
+		}
+		/*
+		 * First and last lines should change in unison. If the last
+		 * line changed then the first line should change as well and
+		 * vice versa.
+		 */
+		last_line_changed = strcmp(new_last_line.text, self->last_line.text) != 0;
+		first_line_changed = strcmp(new_first_line.text, self->first_line.text) != 0;
+		ASSERT_EQ(last_line_changed, first_line_changed);
+
+		/* Check if PROCMAP_QUERY ioclt() finds the right VMA */
+		ASSERT_TRUE(query_addr_at(self->maps_fd, mod_info->addr + self->page_size,
+					  &vma_start, &vma_end));
+		/*
+		 * The vma at the split address can be either the same as
+		 * original one (if read before the split) or the same as the
+		 * first line in the second page (if read after the split).
+		 */
+		ASSERT_TRUE((vma_start == self->last_line.start_addr &&
+			     vma_end == self->last_line.end_addr) ||
+			    (vma_start == split_first_line.start_addr &&
+			     vma_end == split_first_line.end_addr));
+
+		clock_gettime(CLOCK_MONOTONIC_COARSE, &end_ts);
+		end_test_iteration(&end_ts, self->verbose);
+	} while (end_ts.tv_sec - start_ts.tv_sec < self->duration_sec);
+	end_test_loop(self->verbose);
+
+	/* Signal the modifyer thread to stop and wait until it exits */
+	signal_state(mod_info, TEST_DONE);
+}
+
+TEST_F(proc_maps_race, test_maps_tearing_from_resize)
+{
+	struct vma_modifier_info *mod_info = self->mod_info;
+
+	struct line_content shrunk_last_line;
+	struct line_content shrunk_first_line;
+	struct line_content restored_last_line;
+	struct line_content restored_first_line;
+
+	wait_for_state(mod_info, SETUP_READY);
+
+	/* re-read the file to avoid using stale data from previous test */
+	ASSERT_TRUE(read_boundary_lines(self, &self->last_line, &self->first_line));
+
+	mod_info->vma_modify = shrink_vma;
+	mod_info->vma_restore = expand_vma;
+	mod_info->vma_mod_check = check_shrink_result;
+
+	report_test_start("Tearing from resize", self->verbose);
+	ASSERT_TRUE(capture_mod_pattern(self, &shrunk_last_line, &shrunk_first_line,
+					&restored_last_line, &restored_first_line));
+
+	/* Now start concurrent modifications for self->duration_sec */
+	signal_state(mod_info, TEST_READY);
+
+	struct line_content new_last_line;
+	struct line_content new_first_line;
+	struct timespec start_ts, end_ts;
+
+	clock_gettime(CLOCK_MONOTONIC_COARSE, &start_ts);
+	start_test_loop(&start_ts, self->verbose);
+	do {
+		unsigned long vma_start;
+		unsigned long vma_end;
+
+		ASSERT_TRUE(read_boundary_lines(self, &new_last_line, &new_first_line));
+
+		/* Check if we read vmas after shrinking it */
+		if (!strcmp(new_last_line.text, shrunk_last_line.text)) {
+			/*
+			 * The vmas should be consistent with shrunk results,
+			 * however if the vma was concurrently restored, it
+			 * can be reported twice (first as shrunk one, then
+			 * as restored one) because we found it as the next vma
+			 * again. In that case new first line will be the same
+			 * as the last restored line.
+			 */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, shrunk_first_line.text) &&
+					strcmp(new_first_line.text, restored_last_line.text),
+					"Shrink result invalid", self));
+		} else {
+			/* The vmas should be consistent with the original/resored state */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_last_line.text, restored_last_line.text),
+					"Expand result invalid", self));
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, restored_first_line.text),
+					"Expand result invalid", self));
+		}
+
+		/* Check if PROCMAP_QUERY ioclt() finds the right VMA */
+		ASSERT_TRUE(query_addr_at(self->maps_fd, mod_info->addr, &vma_start, &vma_end));
+		/*
+		 * The vma should stay at the same address and have either the
+		 * original size of 3 pages or 1 page if read after shrinking.
+		 */
+		ASSERT_TRUE(vma_start == self->last_line.start_addr &&
+			    (vma_end - vma_start == self->page_size * 3 ||
+			     vma_end - vma_start == self->page_size));
+
+		clock_gettime(CLOCK_MONOTONIC_COARSE, &end_ts);
+		end_test_iteration(&end_ts, self->verbose);
+	} while (end_ts.tv_sec - start_ts.tv_sec < self->duration_sec);
+	end_test_loop(self->verbose);
+
+	/* Signal the modifyer thread to stop and wait until it exits */
+	signal_state(mod_info, TEST_DONE);
+}
+
+TEST_F(proc_maps_race, test_maps_tearing_from_remap)
+{
+	struct vma_modifier_info *mod_info = self->mod_info;
+
+	struct line_content remapped_last_line;
+	struct line_content remapped_first_line;
+	struct line_content restored_last_line;
+	struct line_content restored_first_line;
+
+	wait_for_state(mod_info, SETUP_READY);
+
+	/* re-read the file to avoid using stale data from previous test */
+	ASSERT_TRUE(read_boundary_lines(self, &self->last_line, &self->first_line));
+
+	mod_info->vma_modify = remap_vma;
+	mod_info->vma_restore = patch_vma;
+	mod_info->vma_mod_check = check_remap_result;
+
+	report_test_start("Tearing from remap", self->verbose);
+	ASSERT_TRUE(capture_mod_pattern(self, &remapped_last_line, &remapped_first_line,
+					&restored_last_line, &restored_first_line));
+
+	/* Now start concurrent modifications for self->duration_sec */
+	signal_state(mod_info, TEST_READY);
+
+	struct line_content new_last_line;
+	struct line_content new_first_line;
+	struct timespec start_ts, end_ts;
+
+	clock_gettime(CLOCK_MONOTONIC_COARSE, &start_ts);
+	start_test_loop(&start_ts, self->verbose);
+	do {
+		unsigned long vma_start;
+		unsigned long vma_end;
+
+		ASSERT_TRUE(read_boundary_lines(self, &new_last_line, &new_first_line));
+
+		/* Check if we read vmas after remapping it */
+		if (!strcmp(new_last_line.text, remapped_last_line.text)) {
+			/*
+			 * The vmas should be consistent with remap results,
+			 * however if the vma was concurrently restored, it
+			 * can be reported twice (first as split one, then
+			 * as restored one) because we found it as the next vma
+			 * again. In that case new first line will be the same
+			 * as the last restored line.
+			 */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, remapped_first_line.text) &&
+					strcmp(new_first_line.text, restored_last_line.text),
+					"Remap result invalid", self));
+		} else {
+			/* The vmas should be consistent with the original/resored state */
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_last_line.text, restored_last_line.text),
+					"Remap restore result invalid", self));
+			ASSERT_FALSE(print_boundaries_on(
+					strcmp(new_first_line.text, restored_first_line.text),
+					"Remap restore result invalid", self));
+		}
+
+		/* Check if PROCMAP_QUERY ioclt() finds the right VMA */
+		ASSERT_TRUE(query_addr_at(self->maps_fd, mod_info->addr + self->page_size,
+					  &vma_start, &vma_end));
+		/*
+		 * The vma should either stay at the same address and have the
+		 * original size of 3 pages or we should find the remapped vma
+		 * at the remap destination address with size of 1 page.
+		 */
+		ASSERT_TRUE((vma_start == self->last_line.start_addr &&
+			     vma_end - vma_start == self->page_size * 3) ||
+			    (vma_start == self->last_line.start_addr + self->page_size &&
+			     vma_end - vma_start == self->page_size));
+
+		clock_gettime(CLOCK_MONOTONIC_COARSE, &end_ts);
+		end_test_iteration(&end_ts, self->verbose);
+	} while (end_ts.tv_sec - start_ts.tv_sec < self->duration_sec);
+	end_test_loop(self->verbose);
+
+	/* Signal the modifyer thread to stop and wait until it exits */
+	signal_state(mod_info, TEST_DONE);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/proc/proc-multiple-procfs.c b/tools/testing/selftests/proc/proc-multiple-procfs.c
new file mode 100644
index 000000000000..ab912ad95dab
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-multiple-procfs.c
@@ -0,0 +1,48 @@
+/*
+ * Copyright © 2020 Alexey Gladkov <gladkov.alexey@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+int main(void)
+{
+	struct stat proc_st1, proc_st2;
+	char procbuff[] = "/tmp/proc.XXXXXX/meminfo";
+	char procdir1[] = "/tmp/proc.XXXXXX";
+	char procdir2[] = "/tmp/proc.XXXXXX";
+
+	assert(mkdtemp(procdir1) != NULL);
+	assert(mkdtemp(procdir2) != NULL);
+
+	assert(!mount("proc", procdir1, "proc", 0, "hidepid=1"));
+	assert(!mount("proc", procdir2, "proc", 0, "hidepid=2"));
+
+	snprintf(procbuff, sizeof(procbuff), "%s/meminfo", procdir1);
+	assert(!stat(procbuff, &proc_st1));
+
+	snprintf(procbuff, sizeof(procbuff), "%s/meminfo", procdir2);
+	assert(!stat(procbuff, &proc_st2));
+
+	umount(procdir1);
+	umount(procdir2);
+
+	assert(proc_st1.st_dev != proc_st2.st_dev);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-net-dev-lseek.c b/tools/testing/selftests/proc/proc-net-dev-lseek.c
new file mode 100644
index 000000000000..742a3e804451
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-net-dev-lseek.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2025 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#undef _GNU_SOURCE
+#define _GNU_SOURCE
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sched.h>
+/*
+ * Test that lseek("/proc/net/dev/", 0, SEEK_SET)
+ * a) works,
+ * b) does what you think it does.
+ */
+int main(void)
+{
+	/* /proc/net/dev output is deterministic in fresh netns only. */
+	if (unshare(CLONE_NEWNET) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			return 4;
+		}
+		return 1;
+	}
+
+	const int fd = open("/proc/net/dev", O_RDONLY);
+	assert(fd >= 0);
+
+	char buf1[4096];
+	const ssize_t rv1 = read(fd, buf1, sizeof(buf1));
+	/*
+	 * Not "<=", this file can't be empty:
+	 * there is header, "lo" interface with some zeroes.
+	 */
+	assert(0 < rv1);
+	assert(rv1 <= sizeof(buf1));
+
+	/* Believe it or not, this line broke one day. */
+	assert(lseek(fd, 0, SEEK_SET) == 0);
+
+	char buf2[4096];
+	const ssize_t rv2 = read(fd, buf2, sizeof(buf2));
+	/* Not "<=", see above. */
+	assert(0 < rv2);
+	assert(rv2 <= sizeof(buf2));
+
+	/* Test that lseek rewinds to the beginning of the file. */
+	assert(rv1 == rv2);
+	assert(memcmp(buf1, buf2, rv1) == 0);
+
+	/* Contents of the file is not validated: this test is about lseek(). */
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-pid-vm.c b/tools/testing/selftests/proc/proc-pid-vm.c
new file mode 100644
index 000000000000..4e6a3e53f975
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-pid-vm.c
@@ -0,0 +1,592 @@
+/*
+ * Copyright (c) 2019 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Fork and exec tiny 1 page executable which precisely controls its VM.
+ * Test /proc/$PID/maps
+ * Test /proc/$PID/smaps
+ * Test /proc/$PID/smaps_rollup
+ * Test /proc/$PID/statm
+ *
+ * FIXME require CONFIG_TMPFS which can be disabled
+ * FIXME test other values from "smaps"
+ * FIXME support other archs
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/uio.h>
+#include <linux/kdev_t.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <linux/fs.h>
+
+#ifndef __maybe_unused
+#define __maybe_unused __attribute__((__unused__))
+#endif
+
+#include "kselftest.h"
+
+static inline long sys_execveat(int dirfd, const char *pathname, char **argv, char **envp, int flags)
+{
+	return syscall(SYS_execveat, dirfd, pathname, argv, envp, flags);
+}
+
+static void make_private_tmp(void)
+{
+	if (unshare(CLONE_NEWNS) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			exit(4);
+		}
+		exit(1);
+	}
+	if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {
+		exit(1);
+	}
+	if (mount(NULL, "/tmp", "tmpfs", 0, NULL) == -1) {
+		exit(1);
+	}
+}
+
+static pid_t pid = -1;
+static void ate(void)
+{
+	if (pid > 0) {
+		kill(pid, SIGTERM);
+	}
+}
+
+struct elf64_hdr {
+	uint8_t e_ident[16];
+	uint16_t e_type;
+	uint16_t e_machine;
+	uint32_t e_version;
+	uint64_t e_entry;
+	uint64_t e_phoff;
+	uint64_t e_shoff;
+	uint32_t e_flags;
+	uint16_t e_ehsize;
+	uint16_t e_phentsize;
+	uint16_t e_phnum;
+	uint16_t e_shentsize;
+	uint16_t e_shnum;
+	uint16_t e_shstrndx;
+};
+
+struct elf64_phdr {
+	uint32_t p_type;
+	uint32_t p_flags;
+	uint64_t p_offset;
+	uint64_t p_vaddr;
+	uint64_t p_paddr;
+	uint64_t p_filesz;
+	uint64_t p_memsz;
+	uint64_t p_align;
+};
+
+#ifdef __x86_64__
+#define PAGE_SIZE 4096
+#define VADDR (1UL << 32)
+#define MAPS_OFFSET 73
+
+#define syscall	0x0f, 0x05
+#define mov_rdi(x)	\
+	0x48, 0xbf,	\
+	(x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff,	\
+	((x)>>32)&0xff, ((x)>>40)&0xff, ((x)>>48)&0xff, ((x)>>56)&0xff
+
+#define mov_rsi(x)	\
+	0x48, 0xbe,	\
+	(x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff,	\
+	((x)>>32)&0xff, ((x)>>40)&0xff, ((x)>>48)&0xff, ((x)>>56)&0xff
+
+#define mov_eax(x)	\
+	0xb8, (x)&0xff, ((x)>>8)&0xff, ((x)>>16)&0xff, ((x)>>24)&0xff
+
+static const uint8_t payload[] = {
+	/* Casually unmap stack, vDSO and everything else. */
+	/* munmap */
+	mov_rdi(VADDR + 4096),
+	mov_rsi((1ULL << 47) - 4096 - VADDR - 4096),
+	mov_eax(11),
+	syscall,
+
+	/* Ping parent. */
+	/* write(0, &c, 1); */
+	0x31, 0xff,					/* xor edi, edi */
+	0x48, 0x8d, 0x35, 0x00, 0x00, 0x00, 0x00,	/* lea rsi, [rip] */
+	0xba, 0x01, 0x00, 0x00, 0x00,			/* mov edx, 1 */
+	mov_eax(1),
+	syscall,
+
+	/* 1: pause(); */
+	mov_eax(34),
+	syscall,
+
+	0xeb, 0xf7,	/* jmp 1b */
+};
+
+static int make_exe(const uint8_t *payload, size_t len)
+{
+	struct elf64_hdr h;
+	struct elf64_phdr ph;
+
+	struct iovec iov[3] = {
+		{&h, sizeof(struct elf64_hdr)},
+		{&ph, sizeof(struct elf64_phdr)},
+		{(void *)payload, len},
+	};
+	int fd, fd1;
+	char buf[64];
+
+	memset(&h, 0, sizeof(h));
+	h.e_ident[0] = 0x7f;
+	h.e_ident[1] = 'E';
+	h.e_ident[2] = 'L';
+	h.e_ident[3] = 'F';
+	h.e_ident[4] = 2;
+	h.e_ident[5] = 1;
+	h.e_ident[6] = 1;
+	h.e_ident[7] = 0;
+	h.e_type = 2;
+	h.e_machine = 0x3e;
+	h.e_version = 1;
+	h.e_entry = VADDR + sizeof(struct elf64_hdr) + sizeof(struct elf64_phdr);
+	h.e_phoff = sizeof(struct elf64_hdr);
+	h.e_shoff = 0;
+	h.e_flags = 0;
+	h.e_ehsize = sizeof(struct elf64_hdr);
+	h.e_phentsize = sizeof(struct elf64_phdr);
+	h.e_phnum = 1;
+	h.e_shentsize = 0;
+	h.e_shnum = 0;
+	h.e_shstrndx = 0;
+
+	memset(&ph, 0, sizeof(ph));
+	ph.p_type = 1;
+	ph.p_flags = (1<<2)|1;
+	ph.p_offset = 0;
+	ph.p_vaddr = VADDR;
+	ph.p_paddr = 0;
+	ph.p_filesz = sizeof(struct elf64_hdr) + sizeof(struct elf64_phdr) + len;
+	ph.p_memsz = sizeof(struct elf64_hdr) + sizeof(struct elf64_phdr) + len;
+	ph.p_align = 4096;
+
+	fd = openat(AT_FDCWD, "/tmp", O_WRONLY|O_EXCL|O_TMPFILE, 0700);
+	if (fd == -1) {
+		exit(1);
+	}
+
+	if (writev(fd, iov, 3) != sizeof(struct elf64_hdr) + sizeof(struct elf64_phdr) + len) {
+		exit(1);
+	}
+
+	/* Avoid ETXTBSY on exec. */
+	snprintf(buf, sizeof(buf), "/proc/self/fd/%u", fd);
+	fd1 = open(buf, O_RDONLY|O_CLOEXEC);
+	close(fd);
+
+	return fd1;
+}
+#endif
+
+/*
+ * 0: vsyscall VMA doesn't exist	vsyscall=none
+ * 1: vsyscall VMA is --xp		vsyscall=xonly
+ * 2: vsyscall VMA is r-xp		vsyscall=emulate
+ */
+static volatile int g_vsyscall;
+static const char *str_vsyscall __maybe_unused;
+
+static const char str_vsyscall_0[] __maybe_unused = "";
+static const char str_vsyscall_1[] __maybe_unused =
+"ffffffffff600000-ffffffffff601000 --xp 00000000 00:00 0                  [vsyscall]\n";
+static const char str_vsyscall_2[] __maybe_unused =
+"ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]\n";
+
+#ifdef __x86_64__
+static void sigaction_SIGSEGV(int _, siginfo_t *__, void *___)
+{
+	_exit(g_vsyscall);
+}
+
+/*
+ * vsyscall page can't be unmapped, probe it directly.
+ */
+static void vsyscall(void)
+{
+	pid_t pid;
+	int wstatus;
+
+	pid = fork();
+	if (pid < 0) {
+		fprintf(stderr, "fork, errno %d\n", errno);
+		exit(1);
+	}
+	if (pid == 0) {
+		struct rlimit rlim = {0, 0};
+		(void)setrlimit(RLIMIT_CORE, &rlim);
+
+		/* Hide "segfault at ffffffffff600000" messages. */
+		struct sigaction act;
+		memset(&act, 0, sizeof(struct sigaction));
+		act.sa_flags = SA_SIGINFO;
+		act.sa_sigaction = sigaction_SIGSEGV;
+		(void)sigaction(SIGSEGV, &act, NULL);
+
+		g_vsyscall = 0;
+		/* gettimeofday(NULL, NULL); */
+		uint64_t rax = 0xffffffffff600000;
+		asm volatile (
+			"call *%[rax]"
+			: [rax] "+a" (rax)
+			: "D" (NULL), "S" (NULL)
+			: "rcx", "r11"
+		);
+
+		g_vsyscall = 1;
+		*(volatile int *)0xffffffffff600000UL;
+
+		g_vsyscall = 2;
+		exit(g_vsyscall);
+	}
+	waitpid(pid, &wstatus, 0);
+	if (WIFEXITED(wstatus)) {
+		g_vsyscall = WEXITSTATUS(wstatus);
+	} else {
+		fprintf(stderr, "error: wstatus %08x\n", wstatus);
+		exit(1);
+	}
+}
+
+int main(void)
+{
+	int pipefd[2];
+	int exec_fd;
+
+	vsyscall();
+	switch (g_vsyscall) {
+	case 0:
+		str_vsyscall = str_vsyscall_0;
+		break;
+	case 1:
+		str_vsyscall = str_vsyscall_1;
+		break;
+	case 2:
+		str_vsyscall = str_vsyscall_2;
+		break;
+	default:
+		abort();
+	}
+
+	atexit(ate);
+
+	make_private_tmp();
+
+	/* Reserve fd 0 for 1-byte pipe ping from child. */
+	close(0);
+	if (open("/", O_RDONLY|O_DIRECTORY|O_PATH) != 0) {
+		return 1;
+	}
+
+	exec_fd = make_exe(payload, sizeof(payload));
+
+	if (pipe(pipefd) == -1) {
+		return 1;
+	}
+	if (dup2(pipefd[1], 0) != 0) {
+		return 1;
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		return 1;
+	}
+	if (pid == 0) {
+		sys_execveat(exec_fd, "", NULL, NULL, AT_EMPTY_PATH);
+		return 1;
+	}
+
+	char _;
+	if (read(pipefd[0], &_, 1) != 1) {
+		return 1;
+	}
+
+	struct stat st;
+	if (fstat(exec_fd, &st) == -1) {
+		return 1;
+	}
+
+	/* Generate "head -n1 /proc/$PID/maps" */
+	char buf0[256];
+	memset(buf0, ' ', sizeof(buf0));
+	int len = snprintf(buf0, sizeof(buf0),
+			"%08lx-%08lx r-xp 00000000 %02lx:%02lx %llu",
+			VADDR, VADDR + PAGE_SIZE,
+			MAJOR(st.st_dev), MINOR(st.st_dev),
+			(unsigned long long)st.st_ino);
+	buf0[len] = ' ';
+	snprintf(buf0 + MAPS_OFFSET, sizeof(buf0) - MAPS_OFFSET,
+		 "/tmp/#%llu (deleted)\n", (unsigned long long)st.st_ino);
+
+	/* Test /proc/$PID/maps */
+	{
+		const size_t len = strlen(buf0) + strlen(str_vsyscall);
+		char buf[256];
+		ssize_t rv;
+		int fd;
+
+		snprintf(buf, sizeof(buf), "/proc/%u/maps", pid);
+		fd = open(buf, O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+		rv = read(fd, buf, sizeof(buf));
+		assert(rv == len);
+		assert(memcmp(buf, buf0, strlen(buf0)) == 0);
+		if (g_vsyscall > 0) {
+			assert(memcmp(buf + strlen(buf0), str_vsyscall, strlen(str_vsyscall)) == 0);
+		}
+	}
+
+	/* Test /proc/$PID/smaps */
+	{
+		char buf[4096];
+		ssize_t rv;
+		int fd;
+
+		snprintf(buf, sizeof(buf), "/proc/%u/smaps", pid);
+		fd = open(buf, O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+		rv = read(fd, buf, sizeof(buf));
+		assert(0 <= rv && rv <= sizeof(buf));
+
+		assert(rv >= strlen(buf0));
+		assert(memcmp(buf, buf0, strlen(buf0)) == 0);
+
+#define RSS1 "Rss:                   4 kB\n"
+#define RSS2 "Rss:                   0 kB\n"
+#define PSS1 "Pss:                   4 kB\n"
+#define PSS2 "Pss:                   0 kB\n"
+		assert(memmem(buf, rv, RSS1, strlen(RSS1)) ||
+		       memmem(buf, rv, RSS2, strlen(RSS2)));
+		assert(memmem(buf, rv, PSS1, strlen(PSS1)) ||
+		       memmem(buf, rv, PSS2, strlen(PSS2)));
+
+		static const char *S[] = {
+			"Size:                  4 kB\n",
+			"KernelPageSize:        4 kB\n",
+			"MMUPageSize:           4 kB\n",
+			"Anonymous:             0 kB\n",
+			"AnonHugePages:         0 kB\n",
+			"Shared_Hugetlb:        0 kB\n",
+			"Private_Hugetlb:       0 kB\n",
+			"Locked:                0 kB\n",
+		};
+		int i;
+
+		for (i = 0; i < ARRAY_SIZE(S); i++) {
+			assert(memmem(buf, rv, S[i], strlen(S[i])));
+		}
+
+		if (g_vsyscall > 0) {
+			assert(memmem(buf, rv, str_vsyscall, strlen(str_vsyscall)));
+		}
+	}
+
+	/* Test /proc/$PID/smaps_rollup */
+	{
+		char bufr[256];
+		memset(bufr, ' ', sizeof(bufr));
+		len = snprintf(bufr, sizeof(bufr),
+				"%08lx-%08lx ---p 00000000 00:00 0",
+				VADDR, VADDR + PAGE_SIZE);
+		bufr[len] = ' ';
+		snprintf(bufr + MAPS_OFFSET, sizeof(bufr) - MAPS_OFFSET,
+			 "[rollup]\n");
+
+		char buf[1024];
+		ssize_t rv;
+		int fd;
+
+		snprintf(buf, sizeof(buf), "/proc/%u/smaps_rollup", pid);
+		fd = open(buf, O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+		rv = read(fd, buf, sizeof(buf));
+		assert(0 <= rv && rv <= sizeof(buf));
+
+		assert(rv >= strlen(bufr));
+		assert(memcmp(buf, bufr, strlen(bufr)) == 0);
+
+		assert(memmem(buf, rv, RSS1, strlen(RSS1)) ||
+		       memmem(buf, rv, RSS2, strlen(RSS2)));
+		assert(memmem(buf, rv, PSS1, strlen(PSS1)) ||
+		       memmem(buf, rv, PSS2, strlen(PSS2)));
+
+		static const char *S[] = {
+			"Anonymous:             0 kB\n",
+			"AnonHugePages:         0 kB\n",
+			"Shared_Hugetlb:        0 kB\n",
+			"Private_Hugetlb:       0 kB\n",
+			"Locked:                0 kB\n",
+		};
+		int i;
+
+		for (i = 0; i < ARRAY_SIZE(S); i++) {
+			assert(memmem(buf, rv, S[i], strlen(S[i])));
+		}
+	}
+
+	/* Test /proc/$PID/statm */
+	{
+		char buf[64];
+		ssize_t rv;
+		int fd;
+
+		snprintf(buf, sizeof(buf), "/proc/%u/statm", pid);
+		fd = open(buf, O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+		rv = read(fd, buf, sizeof(buf));
+		assert(rv == 7 * 2);
+
+		assert(buf[0] == '1');	/* ->total_vm */
+		assert(buf[1] == ' ');
+		assert(buf[2] == '0' || buf[2] == '1');	/* rss */
+		assert(buf[3] == ' ');
+		assert(buf[4] == '0' || buf[2] == '1');	/* file rss */
+		assert(buf[5] == ' ');
+		assert(buf[6] == '1');	/* ELF executable segments */
+		assert(buf[7] == ' ');
+		assert(buf[8] == '0');
+		assert(buf[9] == ' ');
+		assert(buf[10] == '0');	/* ->data_vm + ->stack_vm */
+		assert(buf[11] == ' ');
+		assert(buf[12] == '0');
+		assert(buf[13] == '\n');
+	}
+
+	/* Test PROCMAP_QUERY ioctl() for /proc/$PID/maps */
+	{
+		char path_buf[256], exp_path_buf[256];
+		struct procmap_query q;
+		int fd, err;
+
+		snprintf(path_buf, sizeof(path_buf), "/proc/%u/maps", pid);
+		fd = open(path_buf, O_RDONLY);
+		if (fd == -1)
+			return 1;
+
+		/* CASE 1: exact MATCH at VADDR */
+		memset(&q, 0, sizeof(q));
+		q.size = sizeof(q);
+		q.query_addr = VADDR;
+		q.query_flags = 0;
+		q.vma_name_addr = (__u64)(unsigned long)path_buf;
+		q.vma_name_size = sizeof(path_buf);
+
+		err = ioctl(fd, PROCMAP_QUERY, &q);
+		assert(err == 0);
+
+		assert(q.query_addr == VADDR);
+		assert(q.query_flags == 0);
+
+		assert(q.vma_flags == (PROCMAP_QUERY_VMA_READABLE | PROCMAP_QUERY_VMA_EXECUTABLE));
+		assert(q.vma_start == VADDR);
+		assert(q.vma_end == VADDR + PAGE_SIZE);
+		assert(q.vma_page_size == PAGE_SIZE);
+
+		assert(q.vma_offset == 0);
+		assert(q.inode == st.st_ino);
+		assert(q.dev_major == MAJOR(st.st_dev));
+		assert(q.dev_minor == MINOR(st.st_dev));
+
+		snprintf(exp_path_buf, sizeof(exp_path_buf),
+			"/tmp/#%llu (deleted)", (unsigned long long)st.st_ino);
+		assert(q.vma_name_size == strlen(exp_path_buf) + 1);
+		assert(strcmp(path_buf, exp_path_buf) == 0);
+
+		/* CASE 2: NO MATCH at VADDR-1 */
+		memset(&q, 0, sizeof(q));
+		q.size = sizeof(q);
+		q.query_addr = VADDR - 1;
+		q.query_flags = 0; /* exact match */
+
+		err = ioctl(fd, PROCMAP_QUERY, &q);
+		err = err < 0 ? -errno : 0;
+		assert(err == -ENOENT);
+
+		/* CASE 3: MATCH COVERING_OR_NEXT_VMA at VADDR - 1 */
+		memset(&q, 0, sizeof(q));
+		q.size = sizeof(q);
+		q.query_addr = VADDR - 1;
+		q.query_flags = PROCMAP_QUERY_COVERING_OR_NEXT_VMA;
+
+		err = ioctl(fd, PROCMAP_QUERY, &q);
+		assert(err == 0);
+
+		assert(q.query_addr == VADDR - 1);
+		assert(q.query_flags == PROCMAP_QUERY_COVERING_OR_NEXT_VMA);
+		assert(q.vma_start == VADDR);
+		assert(q.vma_end == VADDR + PAGE_SIZE);
+
+		/* CASE 4: NO MATCH at VADDR + PAGE_SIZE */
+		memset(&q, 0, sizeof(q));
+		q.size = sizeof(q);
+		q.query_addr = VADDR + PAGE_SIZE; /* point right after the VMA */
+		q.query_flags = PROCMAP_QUERY_COVERING_OR_NEXT_VMA;
+
+		err = ioctl(fd, PROCMAP_QUERY, &q);
+		err = err < 0 ? -errno : 0;
+		assert(err == -ENOENT);
+
+		/* CASE 5: NO MATCH WRITABLE at VADDR */
+		memset(&q, 0, sizeof(q));
+		q.size = sizeof(q);
+		q.query_addr = VADDR;
+		q.query_flags = PROCMAP_QUERY_VMA_WRITABLE;
+
+		err = ioctl(fd, PROCMAP_QUERY, &q);
+		err = err < 0 ? -errno : 0;
+		assert(err == -ENOENT);
+	}
+
+	return 0;
+}
+#else
+int main(void)
+{
+	return 4;
+}
+#endif
diff --git a/tools/testing/selftests/proc/proc-pidns.c b/tools/testing/selftests/proc/proc-pidns.c
new file mode 100644
index 000000000000..25b9a2933c45
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-pidns.c
@@ -0,0 +1,211 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Aleksa Sarai <cyphar@cyphar.com>
+ * Copyright (C) 2025 SUSE LLC.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/mount.h>
+#include <sys/stat.h>
+#include <sys/prctl.h>
+
+#include "kselftest_harness.h"
+
+#define ASSERT_ERRNO(expected, _t, seen)				\
+	__EXPECT(expected, #expected,					\
+		({__typeof__(seen) _tmp_seen = (seen);			\
+		  _tmp_seen >= 0 ? _tmp_seen : -errno; }), #seen, _t, 1)
+
+#define ASSERT_ERRNO_EQ(expected, seen) \
+	ASSERT_ERRNO(expected, ==, seen)
+
+#define ASSERT_SUCCESS(seen) \
+	ASSERT_ERRNO(0, <=, seen)
+
+static int touch(char *path)
+{
+	int fd = open(path, O_WRONLY|O_CREAT|O_CLOEXEC, 0644);
+	if (fd < 0)
+		return -1;
+	return close(fd);
+}
+
+FIXTURE(ns)
+{
+	int host_mntns, host_pidns;
+	int dummy_pidns;
+};
+
+FIXTURE_SETUP(ns)
+{
+	/* Stash the old mntns. */
+	self->host_mntns = open("/proc/self/ns/mnt", O_RDONLY|O_CLOEXEC);
+	ASSERT_SUCCESS(self->host_mntns);
+
+	/* Create a new mount namespace and make it private. */
+	ASSERT_SUCCESS(unshare(CLONE_NEWNS));
+	ASSERT_SUCCESS(mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL));
+
+	/*
+	 * Create a proper tmpfs that we can use and will disappear once we
+	 * leave this mntns.
+	 */
+	ASSERT_SUCCESS(mount("tmpfs", "/tmp", "tmpfs", 0, NULL));
+
+	/*
+	 * Create a pidns we can use for later tests. We need to fork off a
+	 * child so that we get a usable nsfd that we can bind-mount and open.
+	 */
+	ASSERT_SUCCESS(mkdir("/tmp/dummy", 0755));
+	ASSERT_SUCCESS(touch("/tmp/dummy/pidns"));
+	ASSERT_SUCCESS(mkdir("/tmp/dummy/proc", 0755));
+
+	self->host_pidns = open("/proc/self/ns/pid", O_RDONLY|O_CLOEXEC);
+	ASSERT_SUCCESS(self->host_pidns);
+	ASSERT_SUCCESS(unshare(CLONE_NEWPID));
+
+	pid_t pid = fork();
+	ASSERT_SUCCESS(pid);
+	if (!pid) {
+		prctl(PR_SET_PDEATHSIG, SIGKILL);
+		ASSERT_SUCCESS(mount("/proc/self/ns/pid", "/tmp/dummy/pidns", NULL, MS_BIND, NULL));
+		ASSERT_SUCCESS(mount("proc", "/tmp/dummy/proc", "proc", 0, NULL));
+		exit(0);
+	}
+
+	int wstatus;
+	ASSERT_EQ(waitpid(pid, &wstatus, 0), pid);
+	ASSERT_TRUE(WIFEXITED(wstatus));
+	ASSERT_EQ(WEXITSTATUS(wstatus), 0);
+
+	ASSERT_SUCCESS(setns(self->host_pidns, CLONE_NEWPID));
+
+	self->dummy_pidns = open("/tmp/dummy/pidns", O_RDONLY|O_CLOEXEC);
+	ASSERT_SUCCESS(self->dummy_pidns);
+}
+
+FIXTURE_TEARDOWN(ns)
+{
+	ASSERT_SUCCESS(setns(self->host_mntns, CLONE_NEWNS));
+	ASSERT_SUCCESS(close(self->host_mntns));
+
+	ASSERT_SUCCESS(close(self->host_pidns));
+	ASSERT_SUCCESS(close(self->dummy_pidns));
+}
+
+TEST_F(ns, pidns_mount_string_path)
+{
+	ASSERT_SUCCESS(mkdir("/tmp/proc-host", 0755));
+	ASSERT_SUCCESS(mount("proc", "/tmp/proc-host", "proc", 0, "pidns=/proc/self/ns/pid"));
+	ASSERT_SUCCESS(access("/tmp/proc-host/self/", X_OK));
+
+	ASSERT_SUCCESS(mkdir("/tmp/proc-dummy", 0755));
+	ASSERT_SUCCESS(mount("proc", "/tmp/proc-dummy", "proc", 0, "pidns=/tmp/dummy/pidns"));
+	ASSERT_ERRNO_EQ(-ENOENT, access("/tmp/proc-dummy/1/", X_OK));
+	ASSERT_ERRNO_EQ(-ENOENT, access("/tmp/proc-dummy/self/", X_OK));
+}
+
+TEST_F(ns, pidns_fsconfig_string_path)
+{
+	int fsfd = fsopen("proc", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_SET_STRING, "pidns", "/tmp/dummy/pidns", 0));
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
+
+	int mountfd = fsmount(fsfd, FSMOUNT_CLOEXEC, 0);
+	ASSERT_SUCCESS(mountfd);
+
+	ASSERT_ERRNO_EQ(-ENOENT, faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_ERRNO_EQ(-ENOENT, faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_SUCCESS(close(fsfd));
+	ASSERT_SUCCESS(close(mountfd));
+}
+
+TEST_F(ns, pidns_fsconfig_fd)
+{
+	int fsfd = fsopen("proc", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_SET_FD, "pidns", NULL, self->dummy_pidns));
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
+
+	int mountfd = fsmount(fsfd, FSMOUNT_CLOEXEC, 0);
+	ASSERT_SUCCESS(mountfd);
+
+	ASSERT_ERRNO_EQ(-ENOENT, faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_ERRNO_EQ(-ENOENT, faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_SUCCESS(close(fsfd));
+	ASSERT_SUCCESS(close(mountfd));
+}
+
+TEST_F(ns, pidns_reconfigure_remount)
+{
+	ASSERT_SUCCESS(mkdir("/tmp/proc", 0755));
+	ASSERT_SUCCESS(mount("proc", "/tmp/proc", "proc", 0, ""));
+
+	ASSERT_SUCCESS(access("/tmp/proc/1/", X_OK));
+	ASSERT_SUCCESS(access("/tmp/proc/self/", X_OK));
+
+	ASSERT_ERRNO_EQ(-EBUSY, mount(NULL, "/tmp/proc", NULL, MS_REMOUNT, "pidns=/tmp/dummy/pidns"));
+
+	ASSERT_SUCCESS(access("/tmp/proc/1/", X_OK));
+	ASSERT_SUCCESS(access("/tmp/proc/self/", X_OK));
+}
+
+TEST_F(ns, pidns_reconfigure_fsconfig_string_path)
+{
+	int fsfd = fsopen("proc", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
+
+	int mountfd = fsmount(fsfd, FSMOUNT_CLOEXEC, 0);
+	ASSERT_SUCCESS(mountfd);
+
+	ASSERT_SUCCESS(faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_SUCCESS(faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_ERRNO_EQ(-EBUSY, fsconfig(fsfd, FSCONFIG_SET_STRING, "pidns", "/tmp/dummy/pidns", 0));
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0)); /* noop */
+
+	ASSERT_SUCCESS(faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_SUCCESS(faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_SUCCESS(close(fsfd));
+	ASSERT_SUCCESS(close(mountfd));
+}
+
+TEST_F(ns, pidns_reconfigure_fsconfig_fd)
+{
+	int fsfd = fsopen("proc", FSOPEN_CLOEXEC);
+	ASSERT_SUCCESS(fsfd);
+
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_CREATE, NULL, NULL, 0));
+
+	int mountfd = fsmount(fsfd, FSMOUNT_CLOEXEC, 0);
+	ASSERT_SUCCESS(mountfd);
+
+	ASSERT_SUCCESS(faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_SUCCESS(faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_ERRNO_EQ(-EBUSY, fsconfig(fsfd, FSCONFIG_SET_FD, "pidns", NULL, self->dummy_pidns));
+	ASSERT_SUCCESS(fsconfig(fsfd, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0)); /* noop */
+
+	ASSERT_SUCCESS(faccessat(mountfd, "1/", X_OK, 0));
+	ASSERT_SUCCESS(faccessat(mountfd, "self/", X_OK, 0));
+
+	ASSERT_SUCCESS(close(fsfd));
+	ASSERT_SUCCESS(close(mountfd));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/proc/proc-self-isnt-kthread.c b/tools/testing/selftests/proc/proc-self-isnt-kthread.c
new file mode 100644
index 000000000000..e01f4e0a91b4
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-self-isnt-kthread.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2024 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test that userspace program is not kernel thread. */
+#undef NDEBUG
+#include <assert.h>
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(void)
+{
+	int fd = open("/proc/self/status", O_RDONLY);
+	assert(fd >= 0);
+
+	char buf[4096];
+	ssize_t rv = read(fd, buf, sizeof(buf));
+	assert(0 <= rv && rv < sizeof(buf));
+	buf[rv] = '\0';
+
+	/* This test is very much not kernel thread. */
+	assert(strstr(buf, "Kthread:\t0\n"));
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-self-map-files-001.c b/tools/testing/selftests/proc/proc-self-map-files-001.c
new file mode 100644
index 000000000000..4209c64283d6
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-self-map-files-001.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test readlink /proc/self/map_files/... */
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+
+static void pass(const char *fmt, unsigned long a, unsigned long b)
+{
+	char name[64];
+	char buf[64];
+
+	snprintf(name, sizeof(name), fmt, a, b);
+	if (readlink(name, buf, sizeof(buf)) == -1)
+		exit(1);
+}
+
+static void fail(const char *fmt, unsigned long a, unsigned long b)
+{
+	char name[64];
+	char buf[64];
+
+	snprintf(name, sizeof(name), fmt, a, b);
+	if (readlink(name, buf, sizeof(buf)) == -1 && errno == ENOENT)
+		return;
+	exit(1);
+}
+
+int main(void)
+{
+	const unsigned int PAGE_SIZE = sysconf(_SC_PAGESIZE);
+	void *p;
+	int fd;
+	unsigned long a, b;
+
+	fd = open("/dev/zero", O_RDONLY);
+	if (fd == -1)
+		return 1;
+
+	p = mmap(NULL, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE, fd, 0);
+	if (p == MAP_FAILED)
+		return 1;
+
+	a = (unsigned long)p;
+	b = (unsigned long)p + PAGE_SIZE;
+
+	pass("/proc/self/map_files/%lx-%lx", a, b);
+	fail("/proc/self/map_files/ %lx-%lx", a, b);
+	fail("/proc/self/map_files/%lx -%lx", a, b);
+	fail("/proc/self/map_files/%lx- %lx", a, b);
+	fail("/proc/self/map_files/%lx-%lx ", a, b);
+	fail("/proc/self/map_files/0%lx-%lx", a, b);
+	fail("/proc/self/map_files/%lx-0%lx", a, b);
+	if (sizeof(long) == 4) {
+		fail("/proc/self/map_files/100000000%lx-%lx", a, b);
+		fail("/proc/self/map_files/%lx-100000000%lx", a, b);
+	} else if (sizeof(long) == 8) {
+		fail("/proc/self/map_files/10000000000000000%lx-%lx", a, b);
+		fail("/proc/self/map_files/%lx-10000000000000000%lx", a, b);
+	} else
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-self-map-files-002.c b/tools/testing/selftests/proc/proc-self-map-files-002.c
new file mode 100644
index 000000000000..e6aa00a183bc
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-self-map-files-002.c
@@ -0,0 +1,94 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/* Test readlink /proc/self/map_files/... with minimum address. */
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <stdlib.h>
+
+static void pass(const char *fmt, unsigned long a, unsigned long b)
+{
+	char name[64];
+	char buf[64];
+
+	snprintf(name, sizeof(name), fmt, a, b);
+	if (readlink(name, buf, sizeof(buf)) == -1)
+		exit(1);
+}
+
+static void fail(const char *fmt, unsigned long a, unsigned long b)
+{
+	char name[64];
+	char buf[64];
+
+	snprintf(name, sizeof(name), fmt, a, b);
+	if (readlink(name, buf, sizeof(buf)) == -1 && errno == ENOENT)
+		return;
+	exit(1);
+}
+
+int main(void)
+{
+	const int PAGE_SIZE = sysconf(_SC_PAGESIZE);
+	/*
+	 * va_max must be enough bigger than vm.mmap_min_addr, which is
+	 * 64KB/32KB by default. (depends on CONFIG_LSM_MMAP_MIN_ADDR)
+	 */
+	const unsigned long va_max = 1UL << 20;
+	unsigned long va;
+	void *p;
+	int fd;
+	unsigned long a, b;
+
+	fd = open("/dev/zero", O_RDONLY);
+	if (fd == -1)
+		return 1;
+
+	for (va = 0; va < va_max; va += PAGE_SIZE) {
+		p = mmap((void *)va, PAGE_SIZE, PROT_NONE, MAP_PRIVATE|MAP_FILE|MAP_FIXED, fd, 0);
+		if (p == (void *)va)
+			break;
+	}
+	if (va == va_max) {
+		fprintf(stderr, "error: mmap doesn't like you\n");
+		return 1;
+	}
+
+	a = (unsigned long)p;
+	b = (unsigned long)p + PAGE_SIZE;
+
+	pass("/proc/self/map_files/%lx-%lx", a, b);
+	fail("/proc/self/map_files/ %lx-%lx", a, b);
+	fail("/proc/self/map_files/%lx -%lx", a, b);
+	fail("/proc/self/map_files/%lx- %lx", a, b);
+	fail("/proc/self/map_files/%lx-%lx ", a, b);
+	fail("/proc/self/map_files/0%lx-%lx", a, b);
+	fail("/proc/self/map_files/%lx-0%lx", a, b);
+	if (sizeof(long) == 4) {
+		fail("/proc/self/map_files/100000000%lx-%lx", a, b);
+		fail("/proc/self/map_files/%lx-100000000%lx", a, b);
+	} else if (sizeof(long) == 8) {
+		fail("/proc/self/map_files/10000000000000000%lx-%lx", a, b);
+		fail("/proc/self/map_files/%lx-10000000000000000%lx", a, b);
+	} else
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-self-syscall.c b/tools/testing/selftests/proc/proc-self-syscall.c
new file mode 100644
index 000000000000..8511dcfe67c7
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-self-syscall.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+
+static inline ssize_t sys_read(int fd, void *buf, size_t len)
+{
+	return syscall(SYS_read, fd, buf, len);
+}
+
+int main(void)
+{
+	char buf1[64];
+	char buf2[64];
+	int fd;
+	ssize_t rv;
+
+	fd = open("/proc/self/syscall", O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT)
+			return 4;
+		return 1;
+	}
+
+	/* Do direct system call as libc can wrap anything. */
+	snprintf(buf1, sizeof(buf1), "%ld 0x%lx 0x%lx 0x%lx",
+		 (long)SYS_read, (long)fd, (long)buf2, (long)sizeof(buf2));
+
+	memset(buf2, 0, sizeof(buf2));
+	rv = sys_read(fd, buf2, sizeof(buf2));
+	if (rv < 0)
+		return 1;
+	if (rv < strlen(buf1))
+		return 1;
+	if (strncmp(buf1, buf2, strlen(buf1)) != 0)
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-self-wchan.c b/tools/testing/selftests/proc/proc-self-wchan.c
new file mode 100644
index 000000000000..b467b98a457d
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-self-wchan.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <unistd.h>
+
+int main(void)
+{
+	char buf[64];
+	int fd;
+
+	fd = open("/proc/self/wchan", O_RDONLY);
+	if (fd == -1) {
+		if (errno == ENOENT)
+			return 4;
+		return 1;
+	}
+
+	buf[0] = '\0';
+	if (read(fd, buf, sizeof(buf)) != 1)
+		return 1;
+	if (buf[0] != '0')
+		return 1;
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-subset-pid.c b/tools/testing/selftests/proc/proc-subset-pid.c
new file mode 100644
index 000000000000..d1052bcab039
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-subset-pid.c
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2021 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Test that "mount -t proc -o subset=pid" hides everything but pids,
+ * /proc/self and /proc/thread-self.
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <unistd.h>
+#include <stdio.h>
+
+static inline bool streq(const char *a, const char *b)
+{
+	return strcmp(a, b) == 0;
+}
+
+static void make_private_proc(void)
+{
+	if (unshare(CLONE_NEWNS) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			exit(4);
+		}
+		exit(1);
+	}
+	if (mount(NULL, "/", NULL, MS_PRIVATE|MS_REC, NULL) == -1) {
+		exit(1);
+	}
+	if (mount(NULL, "/proc", "proc", 0, "subset=pid") == -1) {
+		exit(1);
+	}
+}
+
+static bool string_is_pid(const char *s)
+{
+	while (1) {
+		switch (*s++) {
+		case '0':case '1':case '2':case '3':case '4':
+		case '5':case '6':case '7':case '8':case '9':
+			continue;
+
+		case '\0':
+			return true;
+
+		default:
+			return false;
+		}
+	}
+}
+
+int main(void)
+{
+	make_private_proc();
+
+	DIR *d = opendir("/proc");
+	assert(d);
+
+	struct dirent *de;
+
+	bool dot = false;
+	bool dot_dot = false;
+	bool self = false;
+	bool thread_self = false;
+
+	while ((de = readdir(d))) {
+		if (streq(de->d_name, ".")) {
+			assert(!dot);
+			dot = true;
+			assert(de->d_type == DT_DIR);
+		} else if (streq(de->d_name, "..")) {
+			assert(!dot_dot);
+			dot_dot = true;
+			assert(de->d_type == DT_DIR);
+		} else if (streq(de->d_name, "self")) {
+			assert(!self);
+			self = true;
+			assert(de->d_type == DT_LNK);
+		} else if (streq(de->d_name, "thread-self")) {
+			assert(!thread_self);
+			thread_self = true;
+			assert(de->d_type == DT_LNK);
+		} else {
+			if (!string_is_pid(de->d_name)) {
+				fprintf(stderr, "d_name '%s'\n", de->d_name);
+				assert(0);
+			}
+			assert(de->d_type == DT_DIR);
+		}
+	}
+
+	char c;
+	int rv = readlink("/proc/cpuinfo", &c, 1);
+	assert(rv == -1 && errno == ENOENT);
+
+	int fd = open("/proc/cpuinfo", O_RDONLY);
+	assert(fd == -1 && errno == ENOENT);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-tid0.c b/tools/testing/selftests/proc/proc-tid0.c
new file mode 100644
index 000000000000..58c1d7c90a8e
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-tid0.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2021 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that /proc/*/task never contains "0".
+#include <sys/types.h>
+#include <dirent.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <pthread.h>
+
+static pid_t pid = -1;
+
+static void atexit_hook(void)
+{
+	if (pid > 0) {
+		kill(pid, SIGKILL);
+	}
+}
+
+static void *f(void *_)
+{
+	return NULL;
+}
+
+static void sigalrm(int _)
+{
+	exit(0);
+}
+
+int main(void)
+{
+	pid = fork();
+	if (pid == 0) {
+		/* child */
+		while (1) {
+			pthread_t pth;
+			pthread_create(&pth, NULL, f, NULL);
+			pthread_join(pth, NULL);
+		}
+	} else if (pid > 0) {
+		/* parent */
+		atexit(atexit_hook);
+
+		char buf[64];
+		snprintf(buf, sizeof(buf), "/proc/%u/task", pid);
+
+		signal(SIGALRM, sigalrm);
+		alarm(1);
+
+		while (1) {
+			DIR *d = opendir(buf);
+			struct dirent *de;
+			while ((de = readdir(d))) {
+				if (strcmp(de->d_name, "0") == 0) {
+					exit(1);
+				}
+			}
+			closedir(d);
+		}
+
+		return 0;
+	} else {
+		perror("fork");
+		return 1;
+	}
+}
diff --git a/tools/testing/selftests/proc/proc-uptime-001.c b/tools/testing/selftests/proc/proc-uptime-001.c
new file mode 100644
index 000000000000..f335eec5067e
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-uptime-001.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that boottime value in /proc/uptime and CLOCK_BOOTTIME increment
+// monotonically. We don't test idle time monotonicity due to broken iowait
+// task counting, cf: comment above get_cpu_idle_time_us()
+#undef NDEBUG
+#include <assert.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "proc-uptime.h"
+
+int main(void)
+{
+	uint64_t start, u0, u1, c0, c1;
+	int fd;
+
+	fd = open("/proc/uptime", O_RDONLY);
+	assert(fd >= 0);
+
+	u0 = proc_uptime(fd);
+	start = u0;
+	c0 = clock_boottime();
+
+	do {
+		u1 = proc_uptime(fd);
+		c1 = clock_boottime();
+
+		/* Is /proc/uptime monotonic ? */
+		assert(u1 >= u0);
+
+		/* Is CLOCK_BOOTTIME monotonic ? */
+		assert(c1 >= c0);
+
+		/* Is CLOCK_BOOTTIME VS /proc/uptime monotonic ? */
+		assert(c0 >= u0);
+
+		u0 = u1;
+		c0 = c1;
+	} while (u1 - start < 100);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-uptime-002.c b/tools/testing/selftests/proc/proc-uptime-002.c
new file mode 100644
index 000000000000..ae453daa96c1
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-uptime-002.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that boottime value in /proc/uptime and CLOCK_BOOTTIME increment
+// monotonically while shifting across CPUs. We don't test idle time
+// monotonicity due to broken iowait task counting, cf: comment above
+// get_cpu_idle_time_us()
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "proc-uptime.h"
+
+static inline int sys_sched_getaffinity(pid_t pid, unsigned int len, unsigned long *m)
+{
+	return syscall(SYS_sched_getaffinity, pid, len, m);
+}
+
+static inline int sys_sched_setaffinity(pid_t pid, unsigned int len, unsigned long *m)
+{
+	return syscall(SYS_sched_setaffinity, pid, len, m);
+}
+
+int main(void)
+{
+	uint64_t u0, u1, c0, c1;
+	unsigned int len;
+	unsigned long *m;
+	unsigned int cpu;
+	int fd;
+
+	/* find out "nr_cpu_ids" */
+	m = NULL;
+	len = 0;
+	do {
+		len += sizeof(unsigned long);
+		free(m);
+		m = malloc(len);
+	} while (sys_sched_getaffinity(0, len, m) == -1 && errno == EINVAL);
+
+	fd = open("/proc/uptime", O_RDONLY);
+	assert(fd >= 0);
+
+	u0 = proc_uptime(fd);
+	c0 = clock_boottime();
+
+	for (cpu = 0; cpu < len * 8; cpu++) {
+		memset(m, 0, len);
+		m[cpu / (8 * sizeof(unsigned long))] |= 1UL << (cpu % (8 * sizeof(unsigned long)));
+
+		/* CPU might not exist, ignore error */
+		sys_sched_setaffinity(0, len, m);
+
+		u1 = proc_uptime(fd);
+		c1 = clock_boottime();
+
+		/* Is /proc/uptime monotonic ? */
+		assert(u1 >= u0);
+
+		/* Is CLOCK_BOOTTIME monotonic ? */
+		assert(c1 >= c0);
+
+		/* Is CLOCK_BOOTTIME VS /proc/uptime monotonic ? */
+		assert(c0 >= u0);
+
+		u0 = u1;
+		c0 = c1;
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/proc-uptime.h b/tools/testing/selftests/proc/proc-uptime.h
new file mode 100644
index 000000000000..730cce4a3d73
--- /dev/null
+++ b/tools/testing/selftests/proc/proc-uptime.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <time.h>
+
+#include "proc.h"
+
+static uint64_t clock_boottime(void)
+{
+	struct timespec ts;
+	int err;
+
+	err = clock_gettime(CLOCK_BOOTTIME, &ts);
+	assert(err >= 0);
+
+	return (ts.tv_sec * 100) + (ts.tv_nsec / 10000000);
+}
+
+static uint64_t proc_uptime(int fd)
+{
+	uint64_t val1, val2;
+	char buf[64], *p;
+	ssize_t rv;
+
+	/* save "p < end" checks */
+	memset(buf, 0, sizeof(buf));
+	rv = pread(fd, buf, sizeof(buf), 0);
+	assert(0 <= rv && rv <= sizeof(buf));
+	buf[sizeof(buf) - 1] = '\0';
+
+	p = buf;
+
+	val1 = xstrtoull(p, &p);
+	assert(p[0] == '.');
+	assert('0' <= p[1] && p[1] <= '9');
+	assert('0' <= p[2] && p[2] <= '9');
+	assert(p[3] == ' ');
+
+	val2 = (p[1] - '0') * 10 + p[2] - '0';
+
+	return val1 * 100 + val2;
+}
diff --git a/tools/testing/selftests/proc/proc.h b/tools/testing/selftests/proc/proc.h
new file mode 100644
index 000000000000..b7d57ea40237
--- /dev/null
+++ b/tools/testing/selftests/proc/proc.h
@@ -0,0 +1,51 @@
+#pragma once
+#undef NDEBUG
+#include <assert.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/syscall.h>
+
+static inline pid_t sys_getpid(void)
+{
+	return syscall(SYS_getpid);
+}
+
+static inline pid_t sys_gettid(void)
+{
+	return syscall(SYS_gettid);
+}
+
+static inline bool streq(const char *s1, const char *s2)
+{
+	return strcmp(s1, s2) == 0;
+}
+
+static unsigned long long xstrtoull(const char *p, char **end)
+{
+	if (*p == '0') {
+		*end = (char *)p + 1;
+		return 0;
+	} else if ('1' <= *p && *p <= '9') {
+		unsigned long long val;
+
+		errno = 0;
+		val = strtoull(p, end, 10);
+		assert(errno == 0);
+		return val;
+	} else
+		assert(0);
+}
+
+static struct dirent *xreaddir(DIR *d)
+{
+	struct dirent *de;
+
+	errno = 0;
+	de = readdir(d);
+	assert(de || errno == 0);
+	return de;
+}
diff --git a/tools/testing/selftests/proc/read.c b/tools/testing/selftests/proc/read.c
new file mode 100644
index 000000000000..35ee78dff144
--- /dev/null
+++ b/tools/testing/selftests/proc/read.c
@@ -0,0 +1,148 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test
+// 1) read and lseek on every file in /proc
+// 2) readlink of every symlink in /proc
+// 3) recursively (1) + (2) for every directory in /proc
+// 4) write to /proc/*/clear_refs and /proc/*/task/*/clear_refs
+// 5) write to /proc/sysrq-trigger
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/vfs.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "proc.h"
+
+static void f_reg(DIR *d, const char *filename)
+{
+	char buf[4096];
+	int fd;
+	ssize_t rv;
+
+	/* read from /proc/kmsg can block */
+	fd = openat(dirfd(d), filename, O_RDONLY|O_NONBLOCK);
+	if (fd == -1)
+		return;
+	/* struct proc_ops::proc_lseek is mandatory if file is seekable. */
+	(void)lseek(fd, 0, SEEK_SET);
+	rv = read(fd, buf, sizeof(buf));
+	assert((0 <= rv && rv <= sizeof(buf)) || rv == -1);
+	close(fd);
+}
+
+static void f_reg_write(DIR *d, const char *filename, const char *buf, size_t len)
+{
+	int fd;
+	ssize_t rv;
+
+	fd = openat(dirfd(d), filename, O_WRONLY);
+	if (fd == -1)
+		return;
+	rv = write(fd, buf, len);
+	assert((0 <= rv && rv <= len) || rv == -1);
+	close(fd);
+}
+
+static void f_lnk(DIR *d, const char *filename)
+{
+	char buf[4096];
+	ssize_t rv;
+
+	rv = readlinkat(dirfd(d), filename, buf, sizeof(buf));
+	assert((0 <= rv && rv <= sizeof(buf)) || rv == -1);
+}
+
+static void f(DIR *d, unsigned int level)
+{
+	struct dirent *de;
+
+	de = xreaddir(d);
+	assert(de->d_type == DT_DIR);
+	assert(streq(de->d_name, "."));
+
+	de = xreaddir(d);
+	assert(de->d_type == DT_DIR);
+	assert(streq(de->d_name, ".."));
+
+	while ((de = xreaddir(d))) {
+		assert(!streq(de->d_name, "."));
+		assert(!streq(de->d_name, ".."));
+
+		switch (de->d_type) {
+			DIR *dd;
+			int fd;
+
+		case DT_REG:
+			if (level == 0 && streq(de->d_name, "sysrq-trigger")) {
+				f_reg_write(d, de->d_name, "h", 1);
+			} else if (level == 1 && streq(de->d_name, "clear_refs")) {
+				f_reg_write(d, de->d_name, "1", 1);
+			} else if (level == 3 && streq(de->d_name, "clear_refs")) {
+				f_reg_write(d, de->d_name, "1", 1);
+			} else {
+				f_reg(d, de->d_name);
+			}
+			break;
+		case DT_DIR:
+			fd = openat(dirfd(d), de->d_name, O_DIRECTORY|O_RDONLY);
+			if (fd == -1)
+				continue;
+			dd = fdopendir(fd);
+			if (!dd)
+				continue;
+			f(dd, level + 1);
+			closedir(dd);
+			break;
+		case DT_LNK:
+			f_lnk(d, de->d_name);
+			break;
+		default:
+			assert(0);
+		}
+	}
+}
+
+int main(void)
+{
+	DIR *d;
+	struct statfs sfs;
+
+	d = opendir("/proc");
+	if (!d)
+		return 4;
+
+	/* Ensure /proc is proc. */
+	if (fstatfs(dirfd(d), &sfs) == -1) {
+		return 1;
+	}
+	if (sfs.f_type != 0x9fa0) {
+		fprintf(stderr, "error: unexpected f_type %lx\n", (long)sfs.f_type);
+		return 2;
+	}
+
+	f(d, 0);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/self.c b/tools/testing/selftests/proc/self.c
new file mode 100644
index 000000000000..21c15a1ffefb
--- /dev/null
+++ b/tools/testing/selftests/proc/self.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that /proc/self gives correct TGID.
+#undef NDEBUG
+#include <assert.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "proc.h"
+
+int main(void)
+{
+	char buf1[64], buf2[64];
+	pid_t pid;
+	ssize_t rv;
+
+	pid = sys_getpid();
+	snprintf(buf1, sizeof(buf1), "%u", pid);
+
+	rv = readlink("/proc/self", buf2, sizeof(buf2));
+	assert(rv == strlen(buf1));
+	buf2[rv] = '\0';
+	assert(streq(buf1, buf2));
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/setns-dcache.c b/tools/testing/selftests/proc/setns-dcache.c
new file mode 100644
index 000000000000..60ab197a73fc
--- /dev/null
+++ b/tools/testing/selftests/proc/setns-dcache.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright © 2019 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Test that setns(CLONE_NEWNET) points to new /proc/net content even
+ * if old one is in dcache.
+ *
+ * FIXME /proc/net/unix is under CONFIG_UNIX which can be disabled.
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/socket.h>
+
+static pid_t pid = -1;
+
+static void f(void)
+{
+	if (pid > 0) {
+		kill(pid, SIGTERM);
+	}
+}
+
+int main(void)
+{
+	int fd[2];
+	char _ = 0;
+	int nsfd;
+
+	atexit(f);
+
+	/* Check for priviledges and syscall availability straight away. */
+	if (unshare(CLONE_NEWNET) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			return 4;
+		}
+		return 1;
+	}
+	/* Distinguisher between two otherwise empty net namespaces. */
+	if (socket(AF_UNIX, SOCK_STREAM, 0) == -1) {
+		return 1;
+	}
+
+	if (pipe(fd) == -1) {
+		return 1;
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		return 1;
+	}
+
+	if (pid == 0) {
+		if (unshare(CLONE_NEWNET) == -1) {
+			return 1;
+		}
+
+		if (write(fd[1], &_, 1) != 1) {
+			return 1;
+		}
+
+		pause();
+
+		return 0;
+	}
+
+	if (read(fd[0], &_, 1) != 1) {
+		return 1;
+	}
+
+	{
+		char buf[64];
+		snprintf(buf, sizeof(buf), "/proc/%u/ns/net", pid);
+		nsfd = open(buf, O_RDONLY);
+		if (nsfd == -1) {
+			return 1;
+		}
+	}
+
+	/* Reliably pin dentry into dcache. */
+	(void)open("/proc/net/unix", O_RDONLY);
+
+	if (setns(nsfd, CLONE_NEWNET) == -1) {
+		return 1;
+	}
+
+	kill(pid, SIGTERM);
+	pid = 0;
+
+	{
+		char buf[4096];
+		ssize_t rv;
+		int fd;
+
+		fd = open("/proc/net/unix", O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+
+#define S "Num       RefCount Protocol Flags    Type St Inode Path\n"
+		rv = read(fd, buf, sizeof(buf));
+
+		assert(rv == strlen(S));
+		assert(memcmp(buf, S, strlen(S)) == 0);
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/setns-sysvipc.c b/tools/testing/selftests/proc/setns-sysvipc.c
new file mode 100644
index 000000000000..903890c5e587
--- /dev/null
+++ b/tools/testing/selftests/proc/setns-sysvipc.c
@@ -0,0 +1,133 @@
+/*
+ * Copyright © 2019 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+/*
+ * Test that setns(CLONE_NEWIPC) points to new /proc/sysvipc content even
+ * if old one is in dcache.
+ */
+#undef NDEBUG
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+
+static pid_t pid = -1;
+
+static void f(void)
+{
+	if (pid > 0) {
+		kill(pid, SIGTERM);
+	}
+}
+
+int main(void)
+{
+	int fd[2];
+	char _ = 0;
+	int nsfd;
+
+	atexit(f);
+
+	/* Check for priviledges and syscall availability straight away. */
+	if (unshare(CLONE_NEWIPC) == -1) {
+		if (errno == ENOSYS || errno == EPERM) {
+			return 4;
+		}
+		return 1;
+	}
+	/* Distinguisher between two otherwise empty IPC namespaces. */
+	if (shmget(IPC_PRIVATE, 1, IPC_CREAT) == -1) {
+		return 1;
+	}
+
+	if (pipe(fd) == -1) {
+		return 1;
+	}
+
+	pid = fork();
+	if (pid == -1) {
+		return 1;
+	}
+
+	if (pid == 0) {
+		if (unshare(CLONE_NEWIPC) == -1) {
+			return 1;
+		}
+
+		if (write(fd[1], &_, 1) != 1) {
+			return 1;
+		}
+
+		pause();
+
+		return 0;
+	}
+
+	if (read(fd[0], &_, 1) != 1) {
+		return 1;
+	}
+
+	{
+		char buf[64];
+		snprintf(buf, sizeof(buf), "/proc/%u/ns/ipc", pid);
+		nsfd = open(buf, O_RDONLY);
+		if (nsfd == -1) {
+			return 1;
+		}
+	}
+
+	/* Reliably pin dentry into dcache. */
+	(void)open("/proc/sysvipc/shm", O_RDONLY);
+
+	if (setns(nsfd, CLONE_NEWIPC) == -1) {
+		return 1;
+	}
+
+	kill(pid, SIGTERM);
+	pid = 0;
+
+	{
+		char buf[4096];
+		ssize_t rv;
+		int fd;
+
+		fd = open("/proc/sysvipc/shm", O_RDONLY);
+		if (fd == -1) {
+			return 1;
+		}
+
+#define S32 "       key      shmid perms       size  cpid  lpid nattch   uid   gid  cuid  cgid      atime      dtime      ctime        rss       swap\n"
+#define S64 "       key      shmid perms                  size  cpid  lpid nattch   uid   gid  cuid  cgid      atime      dtime      ctime                   rss                  swap\n"
+		rv = read(fd, buf, sizeof(buf));
+		if (rv == strlen(S32)) {
+			assert(memcmp(buf, S32, strlen(S32)) == 0);
+		} else if (rv == strlen(S64)) {
+			assert(memcmp(buf, S64, strlen(S64)) == 0);
+		} else {
+			assert(0);
+		}
+	}
+
+	return 0;
+}
diff --git a/tools/testing/selftests/proc/thread-self.c b/tools/testing/selftests/proc/thread-self.c
new file mode 100644
index 000000000000..4b23b39b7ae0
--- /dev/null
+++ b/tools/testing/selftests/proc/thread-self.c
@@ -0,0 +1,64 @@
+/*
+ * Copyright © 2018 Alexey Dobriyan <adobriyan@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+// Test that /proc/thread-self gives correct TGID/PID.
+#undef NDEBUG
+#include <assert.h>
+#include <sched.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+#include "proc.h"
+
+int f(void *arg)
+{
+	char buf1[64], buf2[64];
+	pid_t pid, tid;
+	ssize_t rv;
+
+	pid = sys_getpid();
+	tid = sys_gettid();
+	snprintf(buf1, sizeof(buf1), "%u/task/%u", pid, tid);
+
+	rv = readlink("/proc/thread-self", buf2, sizeof(buf2));
+	assert(rv == strlen(buf1));
+	buf2[rv] = '\0';
+	assert(streq(buf1, buf2));
+
+	if (arg)
+		exit(0);
+	return 0;
+}
+
+int main(void)
+{
+	const int PAGE_SIZE = sysconf(_SC_PAGESIZE);
+	pid_t pid;
+	void *stack;
+
+	/* main thread */
+	f((void *)0);
+
+	stack = mmap(NULL, 2 * PAGE_SIZE, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
+	assert(stack != MAP_FAILED);
+	/* side thread */
+	pid = clone(f, stack + PAGE_SIZE, CLONE_THREAD|CLONE_SIGHAND|CLONE_VM, (void *)1);
+	assert(pid > 0);
+	pause();
+
+	return 0;
+}
diff --git a/tools/testing/selftests/pstore/.gitignore b/tools/testing/selftests/pstore/.gitignore
new file mode 100644
index 000000000000..9938fb406389
--- /dev/null
+++ b/tools/testing/selftests/pstore/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+logs
+*uuid
diff --git a/tools/testing/selftests/pstore/Makefile b/tools/testing/selftests/pstore/Makefile
new file mode 100644
index 000000000000..5ef57855a2be
--- /dev/null
+++ b/tools/testing/selftests/pstore/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for pstore selftests.
+# Expects pstore backend is registered.
+
+all:
+
+TEST_PROGS := pstore_tests pstore_post_reboot_tests
+TEST_FILES := common_tests pstore_crash_test
+EXTRA_CLEAN := logs/* *uuid
+
+include ../lib.mk
+
+run_crash:
+	@sh pstore_crash_test || { echo "pstore_crash_test: [FAIL]"; exit 1; }
diff --git a/tools/testing/selftests/pstore/common_tests b/tools/testing/selftests/pstore/common_tests
new file mode 100755
index 000000000000..4509f0cc9c91
--- /dev/null
+++ b/tools/testing/selftests/pstore/common_tests
@@ -0,0 +1,83 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# common_tests - Shell script commonly used by pstore test scripts
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+
+# Utilities
+errexit() { # message
+    echo "Error: $1" 1>&2
+    exit 1
+}
+
+absdir() { # file_path
+    (cd `dirname $1`; pwd)
+}
+
+show_result() { # result_value
+    if [ $1 -eq 0 ]; then
+	prlog "ok"
+    else
+	prlog "FAIL"
+	rc=1
+    fi
+}
+
+check_files_exist() { # type of pstorefs file
+    if [ -e ${1}-${backend}-0 ]; then
+	prlog "ok"
+	for f in `ls ${1}-${backend}-*`; do
+            prlog -e "\t${f}"
+	done
+    else
+	prlog "FAIL"
+	rc=1
+    fi
+}
+
+operate_files() { # tested value, files, operation
+    if [ $1 -eq 0 ]; then
+	prlog
+	for f in $2; do
+	    prlog -ne "\t${f} ... "
+	    # execute operation
+	    $3 $f
+	    show_result $?
+	done
+    else
+	prlog " ... FAIL"
+	rc=1
+    fi
+}
+
+# Parameters
+TEST_STRING_PATTERN="Testing pstore: uuid="
+UUID=`cat /proc/sys/kernel/random/uuid`
+TOP_DIR=`absdir $0`
+LOG_DIR=$TOP_DIR/logs/`date +%Y%m%d-%H%M%S`_${UUID}/
+REBOOT_FLAG=$TOP_DIR/reboot_flag
+
+# Preparing logs
+LOG_FILE=$LOG_DIR/`basename $0`.log
+mkdir -p $LOG_DIR || errexit "Failed to make a log directory: $LOG_DIR"
+date > $LOG_FILE
+prlog() { # messages
+    /bin/echo "$@" | tee -a $LOG_FILE
+}
+
+# Starting tests
+rc=0
+prlog "=== Pstore unit tests (`basename $0`) ==="
+prlog "UUID="$UUID
+
+prlog -n "Checking pstore backend is registered ... "
+backend=`cat /sys/module/pstore/parameters/backend`
+show_result $?
+prlog -e "\tbackend=${backend}"
+prlog -e "\tcmdline=`cat /proc/cmdline`"
+if [ $rc -ne 0 ]; then
+    exit 1
+fi
diff --git a/tools/testing/selftests/pstore/config b/tools/testing/selftests/pstore/config
new file mode 100644
index 000000000000..d148f9f89fb6
--- /dev/null
+++ b/tools/testing/selftests/pstore/config
@@ -0,0 +1,5 @@
+CONFIG_MISC_FILESYSTEMS=y
+CONFIG_PSTORE=y
+CONFIG_PSTORE_PMSG=y
+CONFIG_PSTORE_CONSOLE=y
+CONFIG_PSTORE_RAM=m
diff --git a/tools/testing/selftests/pstore/pstore_crash_test b/tools/testing/selftests/pstore/pstore_crash_test
new file mode 100755
index 000000000000..2a329bbb4aca
--- /dev/null
+++ b/tools/testing/selftests/pstore/pstore_crash_test
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# pstore_crash_test - Pstore test shell script which causes crash and reboot
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+
+# exit if pstore backend is not registered
+. ./common_tests
+
+prlog "Causing kernel crash ..."
+
+# enable all functions triggered by sysrq
+echo 1 > /proc/sys/kernel/sysrq
+# setting to reboot in 3 seconds after panic
+echo 3 > /proc/sys/kernel/panic
+
+# save uuid file by different name because next test execution will replace it.
+mv $TOP_DIR/uuid $TOP_DIR/prev_uuid
+
+# create a file as reboot flag
+touch $REBOOT_FLAG
+sync
+
+# cause crash
+# Note: If you use kdump and want to see kmesg-* files after reboot, you should
+#       specify 'crash_kexec_post_notifiers' in 1st kernel's cmdline.
+echo c > /proc/sysrq-trigger
diff --git a/tools/testing/selftests/pstore/pstore_post_reboot_tests b/tools/testing/selftests/pstore/pstore_post_reboot_tests
new file mode 100755
index 000000000000..d6da5e86efbf
--- /dev/null
+++ b/tools/testing/selftests/pstore/pstore_post_reboot_tests
@@ -0,0 +1,80 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# pstore_post_reboot_tests - Check pstore's behavior after crash/reboot
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+. ./common_tests
+
+if [ -e $REBOOT_FLAG  ]; then
+    rm $REBOOT_FLAG
+else
+    prlog "pstore_crash_test has not been executed yet. we skip further tests."
+    exit $ksft_skip
+fi
+
+prlog -n "Mounting pstore filesystem ... "
+mount_info=`grep pstore /proc/mounts`
+if [ $? -eq 0 ]; then
+    mount_point=`echo ${mount_info} | cut -d' ' -f2 | head -n1`
+    prlog "ok"
+else
+    mount none /sys/fs/pstore -t pstore
+    if [ $? -eq 0 ]; then
+	mount_point=`grep pstore /proc/mounts | cut -d' ' -f2 | head -n1`
+	prlog "ok"
+    else
+	prlog "FAIL"
+	exit 1
+    fi
+fi
+
+cd ${mount_point}
+
+prlog -n "Checking dmesg files exist in pstore filesystem ... "
+check_files_exist dmesg
+
+prlog -n "Checking console files exist in pstore filesystem ... "
+check_files_exist console
+
+prlog -n "Checking pmsg files exist in pstore filesystem ... "
+check_files_exist pmsg
+
+prlog -n "Checking dmesg files contain oops end marker"
+grep_end_trace() {
+    grep -q "\---\[ end trace" $1
+}
+files=`ls dmesg-${backend}-*`
+operate_files $? "$files" grep_end_trace
+
+prlog -n "Checking console file contains oops end marker ... "
+grep -q "\---\[ end trace" console-${backend}-0
+show_result $?
+
+prlog -n "Checking pmsg file properly keeps the content written before crash ... "
+prev_uuid=`cat $TOP_DIR/prev_uuid`
+if [ $? -eq 0 ]; then
+    nr_matched=`grep -c "$TEST_STRING_PATTERN" pmsg-${backend}-0`
+    if [ $nr_matched -eq 1 ]; then
+	grep -q "$TEST_STRING_PATTERN"$prev_uuid pmsg-${backend}-0
+	show_result $?
+    else
+	prlog "FAIL"
+	rc=1
+    fi
+else
+    prlog "FAIL"
+    rc=1
+fi
+
+prlog -n "Removing all files in pstore filesystem "
+files=`ls *-${backend}-*`
+operate_files $? "$files" rm
+
+exit $rc
diff --git a/tools/testing/selftests/pstore/pstore_tests b/tools/testing/selftests/pstore/pstore_tests
new file mode 100755
index 000000000000..2aa9a3852a84
--- /dev/null
+++ b/tools/testing/selftests/pstore/pstore_tests
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0-only
+
+# pstore_tests - Check pstore's behavior before crash/reboot
+#
+# Copyright (C) Hitachi Ltd., 2015
+#  Written by Hiraku Toyooka <hiraku.toyooka.gu@hitachi.com>
+#
+
+. ./common_tests
+
+prlog -n "Checking pstore console is registered ... "
+dmesg | grep -Eq "console \[(pstore|${backend})"
+show_result $?
+
+prlog -n "Checking /dev/pmsg0 exists ... "
+test -e /dev/pmsg0
+show_result $?
+
+prlog -n "Writing unique string to /dev/pmsg0 ... "
+if [ -e "/dev/pmsg0" ]; then
+    echo "${TEST_STRING_PATTERN}""$UUID" > /dev/pmsg0
+    show_result $?
+    echo "$UUID" > $TOP_DIR/uuid
+else
+    prlog "FAIL"
+    rc=1
+fi
+
+exit $rc
diff --git a/tools/testing/selftests/ptp/.gitignore b/tools/testing/selftests/ptp/.gitignore
new file mode 100644
index 000000000000..534ca26eee48
--- /dev/null
+++ b/tools/testing/selftests/ptp/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+testptp
diff --git a/tools/testing/selftests/ptp/Makefile b/tools/testing/selftests/ptp/Makefile
new file mode 100644
index 000000000000..8f57f88ecadd
--- /dev/null
+++ b/tools/testing/selftests/ptp/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += $(KHDR_INCLUDES)
+TEST_GEN_PROGS := testptp
+LDLIBS += -lrt
+TEST_PROGS = phc.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/ptp/phc.sh b/tools/testing/selftests/ptp/phc.sh
new file mode 100755
index 000000000000..ac6e5a6e1d3a
--- /dev/null
+++ b/tools/testing/selftests/ptp/phc.sh
@@ -0,0 +1,166 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+	settime
+	adjtime
+	adjfreq
+"
+DEV=$1
+
+##############################################################################
+# Sanity checks
+
+if [[ "$(id -u)" -ne 0 ]]; then
+	echo "SKIP: need root privileges"
+	exit 0
+fi
+
+if [[ "$DEV" == "" ]]; then
+	echo "SKIP: PTP device not provided"
+	exit 0
+fi
+
+require_command()
+{
+	local cmd=$1; shift
+
+	if [[ ! -x "$(command -v "$cmd")" ]]; then
+		echo "SKIP: $cmd not installed"
+		exit 1
+	fi
+}
+
+phc_sanity()
+{
+	phc_ctl $DEV get &> /dev/null
+
+	if [ $? != 0 ]; then
+		echo "SKIP: unknown clock $DEV: No such device"
+		exit 1
+	fi
+}
+
+require_command phc_ctl
+phc_sanity
+
+##############################################################################
+# Helpers
+
+# Exit status to return at the end. Set in case one of the tests fails.
+EXIT_STATUS=0
+# Per-test return value. Clear at the beginning of each test.
+RET=0
+
+check_err()
+{
+	local err=$1
+
+	if [[ $RET -eq 0 && $err -ne 0 ]]; then
+		RET=$err
+	fi
+}
+
+log_test()
+{
+	local test_name=$1
+
+	if [[ $RET -ne 0 ]]; then
+		EXIT_STATUS=1
+		printf "TEST: %-60s  [FAIL]\n" "$test_name"
+		return 1
+	fi
+
+	printf "TEST: %-60s  [ OK ]\n" "$test_name"
+	return 0
+}
+
+tests_run()
+{
+	local current_test
+
+	for current_test in ${TESTS:-$ALL_TESTS}; do
+		$current_test
+	done
+}
+
+##############################################################################
+# Tests
+
+settime_do()
+{
+	local res
+
+	res=$(phc_ctl $DEV set 0 wait 120.5 get 2> /dev/null \
+		| awk '/clock time is/{print $5}' \
+		| awk -F. '{print $1}')
+
+	(( res == 120 ))
+}
+
+adjtime_do()
+{
+	local res
+
+	res=$(phc_ctl $DEV set 0 adj 10 get 2> /dev/null \
+		| awk '/clock time is/{print $5}' \
+		| awk -F. '{print $1}')
+
+	(( res == 10 ))
+}
+
+adjfreq_do()
+{
+	local res
+
+	# Set the clock to be 1% faster
+	res=$(phc_ctl $DEV freq 10000000 set 0 wait 100.5 get 2> /dev/null \
+		| awk '/clock time is/{print $5}' \
+		| awk -F. '{print $1}')
+
+	(( res == 101 ))
+}
+
+##############################################################################
+
+cleanup()
+{
+	phc_ctl $DEV freq 0.0 &> /dev/null
+	phc_ctl $DEV set &> /dev/null
+}
+
+settime()
+{
+	RET=0
+
+	settime_do
+	check_err $?
+	log_test "settime"
+	cleanup
+}
+
+adjtime()
+{
+	RET=0
+
+	adjtime_do
+	check_err $?
+	log_test "adjtime"
+	cleanup
+}
+
+adjfreq()
+{
+	RET=0
+
+	adjfreq_do
+	check_err $?
+	log_test "adjfreq"
+	cleanup
+}
+
+trap cleanup EXIT
+
+tests_run
+
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/ptp/ptpchmaskfmt.sh b/tools/testing/selftests/ptp/ptpchmaskfmt.sh
new file mode 100644
index 000000000000..0a06ba8af300
--- /dev/null
+++ b/tools/testing/selftests/ptp/ptpchmaskfmt.sh
@@ -0,0 +1,14 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Simple helper script to transform ptp debugfs timestamp event queue filtering
+# masks from decimal values to hexadecimal values
+
+# Only takes the debugfs mask file path as an argument
+DEBUGFS_MASKFILE="${1}"
+
+#shellcheck disable=SC2013,SC2086
+for int in $(cat "$DEBUGFS_MASKFILE") ; do
+    printf '0x%08X ' "$int"
+done
+echo
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
new file mode 100644
index 000000000000..ed1e2886ba3c
--- /dev/null
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -0,0 +1,694 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * PTP 1588 clock support - User space test program
+ *
+ * Copyright (C) 2010 OMICRON electronics GmbH
+ */
+#define _GNU_SOURCE
+#define __SANE_USERSPACE_TYPES__        /* For PPC64, to get LL64 types */
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <math.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <linux/ptp_clock.h>
+
+#define DEVICE "/dev/ptp0"
+
+#ifndef ADJ_SETOFFSET
+#define ADJ_SETOFFSET 0x0100
+#endif
+
+#ifndef CLOCK_INVALID
+#define CLOCK_INVALID -1
+#endif
+
+#define NSEC_PER_SEC 1000000000LL
+
+/* clock_adjtime is not available in GLIBC < 2.14 */
+#if !__GLIBC_PREREQ(2, 14)
+#include <sys/syscall.h>
+static int clock_adjtime(clockid_t id, struct timex *tx)
+{
+	return syscall(__NR_clock_adjtime, id, tx);
+}
+#endif
+
+static void show_flag_test(int rq_index, unsigned int flags, int err)
+{
+	printf("PTP_EXTTS_REQUEST%c flags 0x%08x : (%d) %s\n",
+	       rq_index ? '1' + rq_index : ' ',
+	       flags, err, strerror(errno));
+	/* sigh, uClibc ... */
+	errno = 0;
+}
+
+static void do_flag_test(int fd, unsigned int index)
+{
+	struct ptp_extts_request extts_request;
+	unsigned long request[2] = {
+		PTP_EXTTS_REQUEST,
+		PTP_EXTTS_REQUEST2,
+	};
+	unsigned int enable_flags[5] = {
+		PTP_ENABLE_FEATURE,
+		PTP_ENABLE_FEATURE | PTP_RISING_EDGE,
+		PTP_ENABLE_FEATURE | PTP_FALLING_EDGE,
+		PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE,
+		PTP_ENABLE_FEATURE | (PTP_EXTTS_VALID_FLAGS + 1),
+	};
+	int err, i, j;
+
+	memset(&extts_request, 0, sizeof(extts_request));
+	extts_request.index = index;
+
+	for (i = 0; i < 2; i++) {
+		for (j = 0; j < 5; j++) {
+			extts_request.flags = enable_flags[j];
+			err = ioctl(fd, request[i], &extts_request);
+			show_flag_test(i, extts_request.flags, err);
+
+			extts_request.flags = 0;
+			err = ioctl(fd, request[i], &extts_request);
+		}
+	}
+}
+
+static clockid_t get_clockid(int fd)
+{
+#define CLOCKFD 3
+	return (((unsigned int) ~fd) << 3) | CLOCKFD;
+}
+
+static long ppb_to_scaled_ppm(int ppb)
+{
+	/*
+	 * The 'freq' field in the 'struct timex' is in parts per
+	 * million, but with a 16 bit binary fractional field.
+	 * Instead of calculating either one of
+	 *
+	 *    scaled_ppm = (ppb / 1000) << 16  [1]
+	 *    scaled_ppm = (ppb << 16) / 1000  [2]
+	 *
+	 * we simply use double precision math, in order to avoid the
+	 * truncation in [1] and the possible overflow in [2].
+	 */
+	return (long) (ppb * 65.536);
+}
+
+static int64_t pctns(struct ptp_clock_time *t)
+{
+	return t->sec * NSEC_PER_SEC + t->nsec;
+}
+
+static void usage(char *progname)
+{
+	fprintf(stderr,
+		"usage: %s [options]\n"
+		" -c         query the ptp clock's capabilities\n"
+		" -d name    device to open\n"
+		" -e val     read 'val' external time stamp events\n"
+		" -E val     enable rising (1), falling (2), or both (3) edges\n"
+		" -f val     adjust the ptp clock frequency by 'val' ppb\n"
+		" -F chan    Enable single channel mask and keep device open for debugfs verification.\n"
+		" -g         get the ptp clock time\n"
+		" -h         prints this message\n"
+		" -i val     index for event/trigger\n"
+		" -k val     measure the time offset between system and phc clock\n"
+		"            for 'val' times (Maximum 25)\n"
+		" -l         list the current pin configuration\n"
+		" -L pin,val configure pin index 'pin' with function 'val'\n"
+		"            the channel index is taken from the '-i' option\n"
+		"            'val' specifies the auxiliary function:\n"
+		"            0 - none\n"
+		"            1 - external time stamp\n"
+		"            2 - periodic output\n"
+		" -n val     shift the ptp clock time by 'val' nanoseconds\n"
+		" -o val     phase offset (in nanoseconds) to be provided to the PHC servo\n"
+		" -p val     enable output with a period of 'val' nanoseconds\n"
+		" -H val     set output phase to 'val' nanoseconds (requires -p)\n"
+		" -w val     set output pulse width to 'val' nanoseconds (requires -p)\n"
+		" -P val     enable or disable (val=1|0) the system clock PPS\n"
+		" -r         open the ptp clock in readonly mode\n"
+		" -s         set the ptp clock time from the system time\n"
+		" -S         set the system time from the ptp clock time\n"
+		" -t val     shift the ptp clock time by 'val' seconds\n"
+		" -T val     set the ptp clock time to 'val' seconds\n"
+		" -x val     get an extended ptp clock time with the desired number of samples (up to %d)\n"
+		" -X         get a ptp clock cross timestamp\n"
+		" -y val     pre/post tstamp timebase to use {realtime|monotonic|monotonic-raw}\n"
+		" -z         test combinations of rising/falling external time stamp flags\n",
+		progname, PTP_MAX_SAMPLES);
+}
+
+int main(int argc, char *argv[])
+{
+	struct ptp_clock_caps caps;
+	struct ptp_extts_event event;
+	struct ptp_extts_request extts_request;
+	struct ptp_perout_request perout_request;
+	struct ptp_pin_desc desc;
+	struct timespec ts;
+	struct timex tx;
+	struct ptp_clock_time *pct;
+	struct ptp_sys_offset *sysoff;
+	struct ptp_sys_offset_extended *soe;
+	struct ptp_sys_offset_precise *xts;
+
+	char *progname;
+	unsigned int i;
+	int c, cnt, fd;
+
+	char *device = DEVICE;
+	clockid_t clkid;
+	int adjfreq = 0x7fffffff;
+	int adjtime = 0;
+	int adjns = 0;
+	int adjphase = 0;
+	int capabilities = 0;
+	int extts = 0;
+	int edge = 0;
+	int flagtest = 0;
+	int gettime = 0;
+	int index = 0;
+	int list_pins = 0;
+	int pct_offset = 0;
+	int getextended = 0;
+	int getcross = 0;
+	int n_samples = 0;
+	int pin_index = -1, pin_func;
+	int pps = -1;
+	int seconds = 0;
+	int readonly = 0;
+	int settime = 0;
+	int channel = -1;
+	clockid_t ext_clockid = CLOCK_REALTIME;
+
+	int64_t t1, t2, tp;
+	int64_t interval, offset;
+	int64_t perout_phase = -1;
+	int64_t pulsewidth = -1;
+	int64_t perout = -1;
+
+	progname = strrchr(argv[0], '/');
+	progname = progname ? 1+progname : argv[0];
+	while (EOF != (c = getopt(argc, argv, "cd:e:E:f:F:ghH:i:k:lL:n:o:p:P:rsSt:T:w:x:Xy:z"))) {
+		switch (c) {
+		case 'c':
+			capabilities = 1;
+			break;
+		case 'd':
+			device = optarg;
+			break;
+		case 'e':
+			extts = atoi(optarg);
+			break;
+		case 'E':
+			edge = atoi(optarg);
+			edge = (edge & 1 ? PTP_RISING_EDGE : 0) |
+				(edge & 2 ? PTP_FALLING_EDGE : 0);
+			break;
+		case 'f':
+			adjfreq = atoi(optarg);
+			break;
+		case 'F':
+			channel = atoi(optarg);
+			break;
+		case 'g':
+			gettime = 1;
+			break;
+		case 'H':
+			perout_phase = atoll(optarg);
+			break;
+		case 'i':
+			index = atoi(optarg);
+			break;
+		case 'k':
+			pct_offset = 1;
+			n_samples = atoi(optarg);
+			break;
+		case 'l':
+			list_pins = 1;
+			break;
+		case 'L':
+			cnt = sscanf(optarg, "%d,%d", &pin_index, &pin_func);
+			if (cnt != 2) {
+				usage(progname);
+				return -1;
+			}
+			break;
+		case 'n':
+			adjns = atoi(optarg);
+			break;
+		case 'o':
+			adjphase = atoi(optarg);
+			break;
+		case 'p':
+			perout = atoll(optarg);
+			break;
+		case 'P':
+			pps = atoi(optarg);
+			break;
+		case 'r':
+			readonly = 1;
+			break;
+		case 's':
+			settime = 1;
+			break;
+		case 'S':
+			settime = 2;
+			break;
+		case 't':
+			adjtime = atoi(optarg);
+			break;
+		case 'T':
+			settime = 3;
+			seconds = atoi(optarg);
+			break;
+		case 'w':
+			pulsewidth = atoi(optarg);
+			break;
+		case 'x':
+			getextended = atoi(optarg);
+			if (getextended < 1 || getextended > PTP_MAX_SAMPLES) {
+				fprintf(stderr,
+					"number of extended timestamp samples must be between 1 and %d; was asked for %d\n",
+					PTP_MAX_SAMPLES, getextended);
+				return -1;
+			}
+			break;
+		case 'X':
+			getcross = 1;
+			break;
+		case 'y':
+			if (!strcasecmp(optarg, "realtime"))
+				ext_clockid = CLOCK_REALTIME;
+			else if (!strcasecmp(optarg, "monotonic"))
+				ext_clockid = CLOCK_MONOTONIC;
+			else if (!strcasecmp(optarg, "monotonic-raw"))
+				ext_clockid = CLOCK_MONOTONIC_RAW;
+			else {
+				fprintf(stderr,
+					"type needs to be realtime, monotonic or monotonic-raw; was given %s\n",
+					optarg);
+				return -1;
+			}
+			break;
+
+		case 'z':
+			flagtest = 1;
+			break;
+		case 'h':
+			usage(progname);
+			return 0;
+		case '?':
+		default:
+			usage(progname);
+			return -1;
+		}
+	}
+
+	fd = open(device, readonly ? O_RDONLY : O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, "opening %s: %s\n", device, strerror(errno));
+		return -1;
+	}
+
+	clkid = get_clockid(fd);
+	if (CLOCK_INVALID == clkid) {
+		fprintf(stderr, "failed to read clock id\n");
+		return -1;
+	}
+
+	if (capabilities) {
+		if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
+			perror("PTP_CLOCK_GETCAPS");
+		} else {
+			printf("capabilities:\n"
+			       "  %d maximum frequency adjustment (ppb)\n"
+			       "  %d programmable alarms\n"
+			       "  %d external time stamp channels\n"
+			       "  %d programmable periodic signals\n"
+			       "  %d pulse per second\n"
+			       "  %d programmable pins\n"
+			       "  %d cross timestamping\n"
+			       "  %d adjust_phase\n"
+			       "  %d maximum phase adjustment (ns)\n",
+			       caps.max_adj,
+			       caps.n_alarm,
+			       caps.n_ext_ts,
+			       caps.n_per_out,
+			       caps.pps,
+			       caps.n_pins,
+			       caps.cross_timestamping,
+			       caps.adjust_phase,
+			       caps.max_phase_adj);
+		}
+	}
+
+	if (0x7fffffff != adjfreq) {
+		memset(&tx, 0, sizeof(tx));
+		tx.modes = ADJ_FREQUENCY;
+		tx.freq = ppb_to_scaled_ppm(adjfreq);
+		if (clock_adjtime(clkid, &tx)) {
+			perror("clock_adjtime");
+		} else {
+			puts("frequency adjustment okay");
+		}
+	}
+
+	if (adjtime || adjns) {
+		memset(&tx, 0, sizeof(tx));
+		tx.modes = ADJ_SETOFFSET | ADJ_NANO;
+		tx.time.tv_sec = adjtime;
+		tx.time.tv_usec = adjns;
+		while (tx.time.tv_usec < 0) {
+			tx.time.tv_sec  -= 1;
+			tx.time.tv_usec += NSEC_PER_SEC;
+		}
+
+		if (clock_adjtime(clkid, &tx) < 0) {
+			perror("clock_adjtime");
+		} else {
+			puts("time shift okay");
+		}
+	}
+
+	if (adjphase) {
+		memset(&tx, 0, sizeof(tx));
+		tx.modes = ADJ_OFFSET | ADJ_NANO;
+		tx.offset = adjphase;
+
+		if (clock_adjtime(clkid, &tx) < 0) {
+			perror("clock_adjtime");
+		} else {
+			puts("phase adjustment okay");
+		}
+	}
+
+	if (gettime) {
+		if (clock_gettime(clkid, &ts)) {
+			perror("clock_gettime");
+		} else {
+			printf("clock time: %ld.%09ld or %s",
+			       ts.tv_sec, ts.tv_nsec, ctime(&ts.tv_sec));
+		}
+	}
+
+	if (settime == 1) {
+		clock_gettime(CLOCK_REALTIME, &ts);
+		if (clock_settime(clkid, &ts)) {
+			perror("clock_settime");
+		} else {
+			puts("set time okay");
+		}
+	}
+
+	if (settime == 2) {
+		clock_gettime(clkid, &ts);
+		if (clock_settime(CLOCK_REALTIME, &ts)) {
+			perror("clock_settime");
+		} else {
+			puts("set time okay");
+		}
+	}
+
+	if (settime == 3) {
+		ts.tv_sec = seconds;
+		ts.tv_nsec = 0;
+		if (clock_settime(clkid, &ts)) {
+			perror("clock_settime");
+		} else {
+			puts("set time okay");
+		}
+	}
+
+	if (pin_index >= 0) {
+		memset(&desc, 0, sizeof(desc));
+		desc.index = pin_index;
+		desc.func = pin_func;
+		desc.chan = index;
+		if (ioctl(fd, PTP_PIN_SETFUNC, &desc)) {
+			perror("PTP_PIN_SETFUNC");
+		} else {
+			puts("set pin function okay");
+		}
+	}
+
+	if (extts) {
+		if (!readonly) {
+			memset(&extts_request, 0, sizeof(extts_request));
+			extts_request.index = index;
+			extts_request.flags = PTP_ENABLE_FEATURE | edge;
+			if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
+				perror("PTP_EXTTS_REQUEST");
+				extts = 0;
+			} else {
+				puts("external time stamp request okay");
+			}
+		}
+		for (; extts; extts--) {
+			cnt = read(fd, &event, sizeof(event));
+			if (cnt != sizeof(event)) {
+				perror("read");
+				break;
+			}
+			printf("event index %u at %lld.%09u\n", event.index,
+			       event.t.sec, event.t.nsec);
+			fflush(stdout);
+		}
+		if (!readonly) {
+			/* Disable the feature again. */
+			extts_request.flags = 0;
+			if (ioctl(fd, PTP_EXTTS_REQUEST, &extts_request)) {
+				perror("PTP_EXTTS_REQUEST");
+			}
+		}
+	}
+
+	if (flagtest) {
+		do_flag_test(fd, index);
+	}
+
+	if (list_pins) {
+		int n_pins = 0;
+		if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
+			perror("PTP_CLOCK_GETCAPS");
+		} else {
+			n_pins = caps.n_pins;
+		}
+		for (i = 0; i < n_pins; i++) {
+			desc.index = i;
+			if (ioctl(fd, PTP_PIN_GETFUNC, &desc)) {
+				perror("PTP_PIN_GETFUNC");
+				break;
+			}
+			printf("name %s index %u func %u chan %u\n",
+			       desc.name, desc.index, desc.func, desc.chan);
+		}
+	}
+
+	if (pulsewidth >= 0 && perout < 0) {
+		puts("-w can only be specified together with -p");
+		return -1;
+	}
+
+	if (perout_phase >= 0 && perout < 0) {
+		puts("-H can only be specified together with -p");
+		return -1;
+	}
+
+	if (perout >= 0) {
+		if (clock_gettime(clkid, &ts)) {
+			perror("clock_gettime");
+			return -1;
+		}
+		memset(&perout_request, 0, sizeof(perout_request));
+		perout_request.index = index;
+		perout_request.period.sec = perout / NSEC_PER_SEC;
+		perout_request.period.nsec = perout % NSEC_PER_SEC;
+		perout_request.flags = 0;
+		if (pulsewidth >= 0) {
+			perout_request.flags |= PTP_PEROUT_DUTY_CYCLE;
+			perout_request.on.sec = pulsewidth / NSEC_PER_SEC;
+			perout_request.on.nsec = pulsewidth % NSEC_PER_SEC;
+		}
+		if (perout_phase >= 0) {
+			perout_request.flags |= PTP_PEROUT_PHASE;
+			perout_request.phase.sec = perout_phase / NSEC_PER_SEC;
+			perout_request.phase.nsec = perout_phase % NSEC_PER_SEC;
+		} else {
+			perout_request.start.sec = ts.tv_sec + 2;
+			perout_request.start.nsec = 0;
+		}
+
+		if (ioctl(fd, PTP_PEROUT_REQUEST2, &perout_request)) {
+			perror("PTP_PEROUT_REQUEST");
+		} else {
+			puts("periodic output request okay");
+		}
+	}
+
+	if (pps != -1) {
+		int enable = pps ? 1 : 0;
+		if (ioctl(fd, PTP_ENABLE_PPS, enable)) {
+			perror("PTP_ENABLE_PPS");
+		} else {
+			puts("pps for system time request okay");
+		}
+	}
+
+	if (pct_offset) {
+		if (n_samples <= 0 || n_samples > 25) {
+			puts("n_samples should be between 1 and 25");
+			usage(progname);
+			return -1;
+		}
+
+		sysoff = calloc(1, sizeof(*sysoff));
+		if (!sysoff) {
+			perror("calloc");
+			return -1;
+		}
+		sysoff->n_samples = n_samples;
+
+		if (ioctl(fd, PTP_SYS_OFFSET, sysoff))
+			perror("PTP_SYS_OFFSET");
+		else
+			puts("system and phc clock time offset request okay");
+
+		pct = &sysoff->ts[0];
+		for (i = 0; i < sysoff->n_samples; i++) {
+			t1 = pctns(pct+2*i);
+			tp = pctns(pct+2*i+1);
+			t2 = pctns(pct+2*i+2);
+			interval = t2 - t1;
+			offset = (t2 + t1) / 2 - tp;
+
+			printf("system time: %lld.%09u\n",
+				(pct+2*i)->sec, (pct+2*i)->nsec);
+			printf("phc    time: %lld.%09u\n",
+				(pct+2*i+1)->sec, (pct+2*i+1)->nsec);
+			printf("system time: %lld.%09u\n",
+				(pct+2*i+2)->sec, (pct+2*i+2)->nsec);
+			printf("system/phc clock time offset is %" PRId64 " ns\n"
+			       "system     clock time delay  is %" PRId64 " ns\n",
+				offset, interval);
+		}
+
+		free(sysoff);
+	}
+
+	if (getextended) {
+		soe = calloc(1, sizeof(*soe));
+		if (!soe) {
+			perror("calloc");
+			return -1;
+		}
+
+		soe->n_samples = getextended;
+		soe->clockid = ext_clockid;
+
+		if (ioctl(fd, PTP_SYS_OFFSET_EXTENDED, soe)) {
+			perror("PTP_SYS_OFFSET_EXTENDED");
+		} else {
+			printf("extended timestamp request returned %d samples\n",
+			       getextended);
+
+			for (i = 0; i < getextended; i++) {
+				switch (ext_clockid) {
+				case CLOCK_REALTIME:
+					printf("sample #%2d: real time before: %lld.%09u\n",
+					       i, soe->ts[i][0].sec,
+					       soe->ts[i][0].nsec);
+					break;
+				case CLOCK_MONOTONIC:
+					printf("sample #%2d: monotonic time before: %lld.%09u\n",
+					       i, soe->ts[i][0].sec,
+					       soe->ts[i][0].nsec);
+					break;
+				case CLOCK_MONOTONIC_RAW:
+					printf("sample #%2d: monotonic-raw time before: %lld.%09u\n",
+					       i, soe->ts[i][0].sec,
+					       soe->ts[i][0].nsec);
+					break;
+				default:
+					break;
+				}
+				printf("            phc time: %lld.%09u\n",
+				       soe->ts[i][1].sec, soe->ts[i][1].nsec);
+				switch (ext_clockid) {
+				case CLOCK_REALTIME:
+					printf("            real time after: %lld.%09u\n",
+					       soe->ts[i][2].sec,
+					       soe->ts[i][2].nsec);
+					break;
+				case CLOCK_MONOTONIC:
+					printf("            monotonic time after: %lld.%09u\n",
+					       soe->ts[i][2].sec,
+					       soe->ts[i][2].nsec);
+					break;
+				case CLOCK_MONOTONIC_RAW:
+					printf("            monotonic-raw time after: %lld.%09u\n",
+					       soe->ts[i][2].sec,
+					       soe->ts[i][2].nsec);
+					break;
+				default:
+					break;
+				}
+			}
+		}
+
+		free(soe);
+	}
+
+	if (getcross) {
+		xts = calloc(1, sizeof(*xts));
+		if (!xts) {
+			perror("calloc");
+			return -1;
+		}
+
+		if (ioctl(fd, PTP_SYS_OFFSET_PRECISE, xts)) {
+			perror("PTP_SYS_OFFSET_PRECISE");
+		} else {
+			puts("system and phc crosstimestamping request okay");
+
+			printf("device time: %lld.%09u\n",
+			       xts->device.sec, xts->device.nsec);
+			printf("system time: %lld.%09u\n",
+			       xts->sys_realtime.sec, xts->sys_realtime.nsec);
+			printf("monoraw time: %lld.%09u\n",
+			       xts->sys_monoraw.sec, xts->sys_monoraw.nsec);
+		}
+
+		free(xts);
+	}
+
+	if (channel >= 0) {
+		if (ioctl(fd, PTP_MASK_CLEAR_ALL)) {
+			perror("PTP_MASK_CLEAR_ALL");
+		} else if (ioctl(fd, PTP_MASK_EN_SINGLE, (unsigned int *)&channel)) {
+			perror("PTP_MASK_EN_SINGLE");
+		} else {
+			printf("Channel %d exclusively enabled. Check on debugfs.\n", channel);
+			printf("Press any key to continue\n.");
+			getchar();
+		}
+	}
+
+	close(fd);
+	return 0;
+}
diff --git a/tools/testing/selftests/ptp/testptp.mk b/tools/testing/selftests/ptp/testptp.mk
new file mode 100644
index 000000000000..4ef2d9755421
--- /dev/null
+++ b/tools/testing/selftests/ptp/testptp.mk
@@ -0,0 +1,33 @@
+# PTP 1588 clock support - User space test program
+#
+# Copyright (C) 2010 OMICRON electronics GmbH
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+CC        = $(CROSS_COMPILE)gcc
+INC       = -I$(KBUILD_OUTPUT)/usr/include
+CFLAGS    = -Wall $(INC)
+LDLIBS    = -lrt
+PROGS     = testptp
+
+all: $(PROGS)
+
+testptp: testptp.o
+
+clean:
+	rm -f testptp.o
+
+distclean: clean
+	rm -f $(PROGS)
diff --git a/tools/testing/selftests/ptrace/.gitignore b/tools/testing/selftests/ptrace/.gitignore
new file mode 100644
index 000000000000..f6be8efd57ea
--- /dev/null
+++ b/tools/testing/selftests/ptrace/.gitignore
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+get_syscall_info
+get_set_sud
+peeksiginfo
+vmaccess
+set_syscall_info
diff --git a/tools/testing/selftests/ptrace/Makefile b/tools/testing/selftests/ptrace/Makefile
index 453927fea90c..c5e0b76ba6ac 100644
--- a/tools/testing/selftests/ptrace/Makefile
+++ b/tools/testing/selftests/ptrace/Makefile
@@ -1,11 +1,6 @@
-CFLAGS += -iquote../../../../include/uapi -Wall
-peeksiginfo: peeksiginfo.c
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS += -std=c99 -pthread -Wall $(KHDR_INCLUDES)
 
-all: peeksiginfo
-
-clean:
-	rm -f peeksiginfo
-
-TEST_PROGS := peeksiginfo
+TEST_GEN_PROGS := get_syscall_info set_syscall_info peeksiginfo vmaccess get_set_sud
 
 include ../lib.mk
diff --git a/tools/testing/selftests/ptrace/get_set_sud.c b/tools/testing/selftests/ptrace/get_set_sud.c
new file mode 100644
index 000000000000..2e619c7599bb
--- /dev/null
+++ b/tools/testing/selftests/ptrace/get_set_sud.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include "kselftest_harness.h"
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/syscall.h>
+#include <sys/prctl.h>
+
+#include "linux/ptrace.h"
+
+static int sys_ptrace(int request, pid_t pid, void *addr, void *data)
+{
+	return syscall(SYS_ptrace, request, pid, addr, data);
+}
+
+TEST(get_set_sud)
+{
+	struct ptrace_sud_config config;
+	pid_t child;
+	int ret = 0;
+	int status;
+
+	child = fork();
+	ASSERT_GE(child, 0);
+	if (child == 0) {
+		ASSERT_EQ(0, sys_ptrace(PTRACE_TRACEME, 0, 0, 0)) {
+			TH_LOG("PTRACE_TRACEME: %m");
+		}
+		kill(getpid(), SIGSTOP);
+		_exit(1);
+	}
+
+	waitpid(child, &status, 0);
+
+	memset(&config, 0xff, sizeof(config));
+	config.mode = PR_SYS_DISPATCH_ON;
+
+	ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child,
+			 (void *)sizeof(config), &config);
+
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(config.mode, PR_SYS_DISPATCH_OFF);
+	ASSERT_EQ(config.selector, 0);
+	ASSERT_EQ(config.offset, 0);
+	ASSERT_EQ(config.len, 0);
+
+	config.mode = PR_SYS_DISPATCH_ON;
+	config.selector = 0;
+	config.offset = 0x400000;
+	config.len = 0x1000;
+
+	ret = sys_ptrace(PTRACE_SET_SYSCALL_USER_DISPATCH_CONFIG, child,
+			 (void *)sizeof(config), &config);
+
+	ASSERT_EQ(ret, 0);
+
+	memset(&config, 1, sizeof(config));
+	ret = sys_ptrace(PTRACE_GET_SYSCALL_USER_DISPATCH_CONFIG, child,
+			 (void *)sizeof(config), &config);
+
+	ASSERT_EQ(ret, 0);
+	ASSERT_EQ(config.mode, PR_SYS_DISPATCH_ON);
+	ASSERT_EQ(config.selector, 0);
+	ASSERT_EQ(config.offset, 0x400000);
+	ASSERT_EQ(config.len, 0x1000);
+
+	kill(child, SIGKILL);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/ptrace/get_syscall_info.c b/tools/testing/selftests/ptrace/get_syscall_info.c
new file mode 100644
index 000000000000..3f5c3a9fdaba
--- /dev/null
+++ b/tools/testing/selftests/ptrace/get_syscall_info.c
@@ -0,0 +1,271 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2018 Dmitry V. Levin <ldv@altlinux.org>
+ * All rights reserved.
+ *
+ * Check whether PTRACE_GET_SYSCALL_INFO semantics implemented in the kernel
+ * matches userspace expectations.
+ */
+
+#include "kselftest_harness.h"
+#include <err.h>
+#include <signal.h>
+#include <asm/unistd.h>
+#include "linux/ptrace.h"
+
+static int
+kill_tracee(pid_t pid)
+{
+	if (!pid)
+		return 0;
+
+	int saved_errno = errno;
+
+	int rc = kill(pid, SIGKILL);
+
+	errno = saved_errno;
+	return rc;
+}
+
+static long
+sys_ptrace(int request, pid_t pid, unsigned long addr, unsigned long data)
+{
+	return syscall(__NR_ptrace, request, pid, addr, data);
+}
+
+#define LOG_KILL_TRACEE(fmt, ...)				\
+	do {							\
+		kill_tracee(pid);				\
+		TH_LOG("wait #%d: " fmt,			\
+		       ptrace_stop, ##__VA_ARGS__);		\
+	} while (0)
+
+TEST(get_syscall_info)
+{
+	static const unsigned long args[][7] = {
+		/* a sequence of architecture-agnostic syscalls */
+		{
+			__NR_chdir,
+			(unsigned long) "",
+			0xbad1fed1,
+			0xbad2fed2,
+			0xbad3fed3,
+			0xbad4fed4,
+			0xbad5fed5
+		},
+		{
+			__NR_gettid,
+			0xcaf0bea0,
+			0xcaf1bea1,
+			0xcaf2bea2,
+			0xcaf3bea3,
+			0xcaf4bea4,
+			0xcaf5bea5
+		},
+		{
+			__NR_exit_group,
+			0,
+			0xfac1c0d1,
+			0xfac2c0d2,
+			0xfac3c0d3,
+			0xfac4c0d4,
+			0xfac5c0d5
+		}
+	};
+	const unsigned long *exp_args;
+
+	pid_t pid = fork();
+
+	ASSERT_LE(0, pid) {
+		TH_LOG("fork: %m");
+	}
+
+	if (pid == 0) {
+		/* get the pid before PTRACE_TRACEME */
+		pid = getpid();
+		ASSERT_EQ(0, sys_ptrace(PTRACE_TRACEME, 0, 0, 0)) {
+			TH_LOG("PTRACE_TRACEME: %m");
+		}
+		ASSERT_EQ(0, kill(pid, SIGSTOP)) {
+			/* cannot happen */
+			TH_LOG("kill SIGSTOP: %m");
+		}
+		for (unsigned int i = 0; i < ARRAY_SIZE(args); ++i) {
+			syscall(args[i][0],
+				args[i][1], args[i][2], args[i][3],
+				args[i][4], args[i][5], args[i][6]);
+		}
+		/* unreachable */
+		_exit(1);
+	}
+
+	const struct {
+		unsigned int is_error;
+		int rval;
+	} *exp_param, exit_param[] = {
+		{ 1, -ENOENT },	/* chdir */
+		{ 0, pid }	/* gettid */
+	};
+
+	unsigned int ptrace_stop;
+
+	for (ptrace_stop = 0; ; ++ptrace_stop) {
+		struct ptrace_syscall_info info = {
+			.op = 0xff	/* invalid PTRACE_SYSCALL_INFO_* op */
+		};
+		const size_t size = sizeof(info);
+		const int expected_none_size =
+			(void *) &info.entry - (void *) &info;
+		const int expected_entry_size =
+			(void *) &info.entry.args[6] - (void *) &info;
+		const int expected_exit_size =
+			(void *) (&info.exit.is_error + 1) -
+			(void *) &info;
+		int status;
+		long rc;
+
+		ASSERT_EQ(pid, wait(&status)) {
+			/* cannot happen */
+			LOG_KILL_TRACEE("wait: %m");
+		}
+		if (WIFEXITED(status)) {
+			pid = 0;	/* the tracee is no more */
+			ASSERT_EQ(0, WEXITSTATUS(status));
+			break;
+		}
+		ASSERT_FALSE(WIFSIGNALED(status)) {
+			pid = 0;	/* the tracee is no more */
+			LOG_KILL_TRACEE("unexpected signal %u",
+					WTERMSIG(status));
+		}
+		ASSERT_TRUE(WIFSTOPPED(status)) {
+			/* cannot happen */
+			LOG_KILL_TRACEE("unexpected wait status %#x", status);
+		}
+
+		switch (WSTOPSIG(status)) {
+		case SIGSTOP:
+			ASSERT_EQ(0, ptrace_stop) {
+				LOG_KILL_TRACEE("unexpected signal stop");
+			}
+			ASSERT_EQ(0, sys_ptrace(PTRACE_SETOPTIONS, pid, 0,
+						PTRACE_O_TRACESYSGOOD)) {
+				LOG_KILL_TRACEE("PTRACE_SETOPTIONS: %m");
+			}
+			ASSERT_LT(0, (rc = sys_ptrace(PTRACE_GET_SYSCALL_INFO,
+						      pid, size,
+						      (unsigned long) &info))) {
+				LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO: %m");
+			}
+			ASSERT_EQ(expected_none_size, rc) {
+				LOG_KILL_TRACEE("signal stop mismatch");
+			}
+			ASSERT_EQ(PTRACE_SYSCALL_INFO_NONE, info.op) {
+				LOG_KILL_TRACEE("signal stop mismatch");
+			}
+			ASSERT_TRUE(info.arch) {
+				LOG_KILL_TRACEE("signal stop mismatch");
+			}
+			ASSERT_TRUE(info.instruction_pointer) {
+				LOG_KILL_TRACEE("signal stop mismatch");
+			}
+			ASSERT_TRUE(info.stack_pointer) {
+				LOG_KILL_TRACEE("signal stop mismatch");
+			}
+			break;
+
+		case SIGTRAP | 0x80:
+			ASSERT_LT(0, (rc = sys_ptrace(PTRACE_GET_SYSCALL_INFO,
+						      pid, size,
+						      (unsigned long) &info))) {
+				LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO: %m");
+			}
+			switch (ptrace_stop) {
+			case 1: /* entering chdir */
+			case 3: /* entering gettid */
+			case 5: /* entering exit_group */
+				exp_args = args[ptrace_stop / 2];
+				ASSERT_EQ(expected_entry_size, rc) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(PTRACE_SYSCALL_INFO_ENTRY, info.op) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_TRUE(info.arch) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_TRUE(info.instruction_pointer) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_TRUE(info.stack_pointer) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[0], info.entry.nr) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[1], info.entry.args[0]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[2], info.entry.args[1]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[3], info.entry.args[2]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[4], info.entry.args[3]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[5], info.entry.args[4]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				ASSERT_EQ(exp_args[6], info.entry.args[5]) {
+					LOG_KILL_TRACEE("entry stop mismatch");
+				}
+				break;
+			case 2: /* exiting chdir */
+			case 4: /* exiting gettid */
+				exp_param = &exit_param[ptrace_stop / 2 - 1];
+				ASSERT_EQ(expected_exit_size, rc) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_EQ(PTRACE_SYSCALL_INFO_EXIT, info.op) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_TRUE(info.arch) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_TRUE(info.instruction_pointer) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_TRUE(info.stack_pointer) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_EQ(exp_param->is_error,
+					  info.exit.is_error) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				ASSERT_EQ(exp_param->rval, info.exit.rval) {
+					LOG_KILL_TRACEE("exit stop mismatch");
+				}
+				break;
+			default:
+				LOG_KILL_TRACEE("unexpected syscall stop");
+				abort();
+			}
+			break;
+
+		default:
+			LOG_KILL_TRACEE("unexpected stop signal %#x",
+					WSTOPSIG(status));
+			abort();
+		}
+
+		ASSERT_EQ(0, sys_ptrace(PTRACE_SYSCALL, pid, 0, 0)) {
+			LOG_KILL_TRACEE("PTRACE_SYSCALL: %m");
+		}
+	}
+
+	ASSERT_EQ(ARRAY_SIZE(args) * 2, ptrace_stop);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c b/tools/testing/selftests/ptrace/peeksiginfo.c
index c34cd8ac8aaa..2f345d11e4b8 100644
--- a/tools/testing/selftests/ptrace/peeksiginfo.c
+++ b/tools/testing/selftests/ptrace/peeksiginfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <stdio.h>
 #include <signal.h>
@@ -150,7 +151,7 @@ out:
 
 int main(int argc, char *argv[])
 {
-	siginfo_t siginfo[SIGNR];
+	siginfo_t siginfo;
 	int i, exit_code = 1;
 	sigset_t blockmask;
 	pid_t child;
@@ -175,13 +176,13 @@ int main(int argc, char *argv[])
 
 	/* Send signals in process-wide and per-thread queues */
 	for (i = 0; i < SIGNR; i++) {
-		siginfo->si_code = TEST_SICODE_SHARE;
-		siginfo->si_int = i;
-		sys_rt_sigqueueinfo(child, SIGRTMIN, siginfo);
+		siginfo.si_code = TEST_SICODE_SHARE;
+		siginfo.si_int = i;
+		sys_rt_sigqueueinfo(child, SIGRTMIN, &siginfo);
 
-		siginfo->si_code = TEST_SICODE_PRIV;
-		siginfo->si_int = i;
-		sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, siginfo);
+		siginfo.si_code = TEST_SICODE_PRIV;
+		siginfo.si_int = i;
+		sys_rt_tgsigqueueinfo(child, child, SIGRTMIN, &siginfo);
 	}
 
 	if (sys_ptrace(PTRACE_ATTACH, child, NULL, NULL) == -1)
@@ -198,7 +199,7 @@ int main(int argc, char *argv[])
 
 	/*
 	 * Dump signal from the process-wide queue.
-	 * The number of signals is not multible to the buffer size
+	 * The number of signals is not multiple to the buffer size
 	 */
 	if (check_direct_path(child, 1, 3))
 		goto out;
diff --git a/tools/testing/selftests/ptrace/set_syscall_info.c b/tools/testing/selftests/ptrace/set_syscall_info.c
new file mode 100644
index 000000000000..1cc411a41cd6
--- /dev/null
+++ b/tools/testing/selftests/ptrace/set_syscall_info.c
@@ -0,0 +1,519 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2018-2025 Dmitry V. Levin <ldv@strace.io>
+ * All rights reserved.
+ *
+ * Check whether PTRACE_SET_SYSCALL_INFO semantics implemented in the kernel
+ * matches userspace expectations.
+ */
+
+#include "kselftest_harness.h"
+#include <err.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <asm/unistd.h>
+#include <linux/types.h>
+#include <linux/ptrace.h>
+
+#if defined(_MIPS_SIM) && _MIPS_SIM == _MIPS_SIM_NABI32
+/*
+ * MIPS N32 is the only architecture where __kernel_ulong_t
+ * does not match the bitness of syscall arguments.
+ */
+typedef unsigned long long kernel_ulong_t;
+#else
+typedef __kernel_ulong_t kernel_ulong_t;
+#endif
+
+struct si_entry {
+	int nr;
+	kernel_ulong_t args[6];
+};
+struct si_exit {
+	unsigned int is_error;
+	int rval;
+};
+
+static unsigned int ptrace_stop;
+static pid_t tracee_pid;
+
+static int
+kill_tracee(pid_t pid)
+{
+	if (!pid)
+		return 0;
+
+	int saved_errno = errno;
+
+	int rc = kill(pid, SIGKILL);
+
+	errno = saved_errno;
+	return rc;
+}
+
+static long
+sys_ptrace(int request, pid_t pid, unsigned long addr, unsigned long data)
+{
+	return syscall(__NR_ptrace, request, pid, addr, data);
+}
+
+#define LOG_KILL_TRACEE(fmt, ...)				\
+	do {							\
+		kill_tracee(tracee_pid);			\
+		TH_LOG("wait #%d: " fmt,			\
+		       ptrace_stop, ##__VA_ARGS__);		\
+	} while (0)
+
+static void
+check_psi_entry(struct __test_metadata *_metadata,
+		const struct ptrace_syscall_info *info,
+		const struct si_entry *exp_entry,
+		const char *text)
+{
+	unsigned int i;
+	int exp_nr = exp_entry->nr;
+#if defined __s390__ || defined __s390x__
+	/* s390 is the only architecture that has 16-bit syscall numbers */
+	exp_nr &= 0xffff;
+#endif
+
+	ASSERT_EQ(PTRACE_SYSCALL_INFO_ENTRY, info->op) {
+		LOG_KILL_TRACEE("%s: entry stop mismatch", text);
+	}
+	ASSERT_TRUE(info->arch) {
+		LOG_KILL_TRACEE("%s: entry stop mismatch", text);
+	}
+	ASSERT_TRUE(info->instruction_pointer) {
+		LOG_KILL_TRACEE("%s: entry stop mismatch", text);
+	}
+	ASSERT_TRUE(info->stack_pointer) {
+		LOG_KILL_TRACEE("%s: entry stop mismatch", text);
+	}
+	ASSERT_EQ(exp_nr, info->entry.nr) {
+		LOG_KILL_TRACEE("%s: syscall nr mismatch", text);
+	}
+	for (i = 0; i < ARRAY_SIZE(exp_entry->args); ++i) {
+		ASSERT_EQ(exp_entry->args[i], info->entry.args[i]) {
+			LOG_KILL_TRACEE("%s: syscall arg #%u mismatch",
+					text, i);
+		}
+	}
+}
+
+static void
+check_psi_exit(struct __test_metadata *_metadata,
+	       const struct ptrace_syscall_info *info,
+	       const struct si_exit *exp_exit,
+	       const char *text)
+{
+	ASSERT_EQ(PTRACE_SYSCALL_INFO_EXIT, info->op) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+	ASSERT_TRUE(info->arch) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+	ASSERT_TRUE(info->instruction_pointer) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+	ASSERT_TRUE(info->stack_pointer) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+	ASSERT_EQ(exp_exit->is_error, info->exit.is_error) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+	ASSERT_EQ(exp_exit->rval, info->exit.rval) {
+		LOG_KILL_TRACEE("%s: exit stop mismatch", text);
+	}
+}
+
+TEST(set_syscall_info)
+{
+	const pid_t tracer_pid = getpid();
+	const kernel_ulong_t dummy[] = {
+		(kernel_ulong_t) 0xdad0bef0bad0fed0ULL,
+		(kernel_ulong_t) 0xdad1bef1bad1fed1ULL,
+		(kernel_ulong_t) 0xdad2bef2bad2fed2ULL,
+		(kernel_ulong_t) 0xdad3bef3bad3fed3ULL,
+		(kernel_ulong_t) 0xdad4bef4bad4fed4ULL,
+		(kernel_ulong_t) 0xdad5bef5bad5fed5ULL,
+	};
+	int splice_in[2], splice_out[2];
+
+	ASSERT_EQ(0, pipe(splice_in));
+	ASSERT_EQ(0, pipe(splice_out));
+	ASSERT_EQ(sizeof(dummy), write(splice_in[1], dummy, sizeof(dummy)));
+
+	const struct {
+		struct si_entry entry[2];
+		struct si_exit exit[2];
+	} si[] = {
+		/* change scno, keep non-error rval */
+		{
+			{
+				{
+					__NR_gettid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_getppid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 0, tracer_pid }, { 0, tracer_pid }
+			}
+		},
+
+		/* set scno to -1, keep error rval */
+		{
+			{
+				{
+					__NR_chdir,
+					{
+						(uintptr_t) ".",
+						dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					-1,
+					{
+						(uintptr_t) ".",
+						dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 1, -ENOSYS }, { 1, -ENOSYS }
+			}
+		},
+
+		/* keep scno, change non-error rval */
+		{
+			{
+				{
+					__NR_getppid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_getppid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 0, tracer_pid }, { 0, tracer_pid + 1 }
+			}
+		},
+
+		/* change arg1, keep non-error rval */
+		{
+			{
+				{
+					__NR_chdir,
+					{
+						(uintptr_t) "",
+						dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_chdir,
+					{
+						(uintptr_t) ".",
+						dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 0, 0 }, { 0, 0 }
+			}
+		},
+
+		/* set scno to -1, change error rval to non-error */
+		{
+			{
+				{
+					__NR_gettid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					-1,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 1, -ENOSYS }, { 0, tracer_pid }
+			}
+		},
+
+		/* change scno, change non-error rval to error */
+		{
+			{
+				{
+					__NR_chdir,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_getppid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 0, tracer_pid }, { 1, -EISDIR }
+			}
+		},
+
+		/* change scno and all args, change non-error rval */
+		{
+			{
+				{
+					__NR_gettid,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_splice,
+					{
+						splice_in[0], 0, splice_out[1], 0,
+						sizeof(dummy), SPLICE_F_NONBLOCK
+					}
+				}
+			}, {
+				{ 0, sizeof(dummy) }, { 0, sizeof(dummy) + 1 }
+			}
+		},
+
+		/* change arg1, no exit stop */
+		{
+			{
+				{
+					__NR_exit_group,
+					{
+						dummy[0], dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}, {
+					__NR_exit_group,
+					{
+						0, dummy[1], dummy[2],
+						dummy[3], dummy[4], dummy[5]
+					}
+				}
+			}, {
+				{ 0, 0 }, { 0, 0 }
+			}
+		},
+	};
+
+	long rc;
+	unsigned int i;
+
+	tracee_pid = fork();
+
+	ASSERT_LE(0, tracee_pid) {
+		TH_LOG("fork: %m");
+	}
+
+	if (tracee_pid == 0) {
+		/* get the pid before PTRACE_TRACEME */
+		tracee_pid = getpid();
+		ASSERT_EQ(0, sys_ptrace(PTRACE_TRACEME, 0, 0, 0)) {
+			TH_LOG("PTRACE_TRACEME: %m");
+		}
+		ASSERT_EQ(0, kill(tracee_pid, SIGSTOP)) {
+			/* cannot happen */
+			TH_LOG("kill SIGSTOP: %m");
+		}
+		for (i = 0; i < ARRAY_SIZE(si); ++i) {
+			rc = syscall(si[i].entry[0].nr,
+				     si[i].entry[0].args[0],
+				     si[i].entry[0].args[1],
+				     si[i].entry[0].args[2],
+				     si[i].entry[0].args[3],
+				     si[i].entry[0].args[4],
+				     si[i].entry[0].args[5]);
+			if (si[i].exit[1].is_error) {
+				if (rc != -1 || errno != -si[i].exit[1].rval)
+					break;
+			} else {
+				if (rc != si[i].exit[1].rval)
+					break;
+			}
+		}
+		/*
+		 * Something went wrong, but in this state tracee
+		 * cannot reliably issue syscalls, so just crash.
+		 */
+		*(volatile unsigned char *) (uintptr_t) i = 42;
+		/* unreachable */
+		_exit(i + 1);
+	}
+
+	for (ptrace_stop = 0; ; ++ptrace_stop) {
+		struct ptrace_syscall_info info = {
+			.op = 0xff	/* invalid PTRACE_SYSCALL_INFO_* op */
+		};
+		const size_t size = sizeof(info);
+		const int expected_entry_size =
+			(void *) &info.entry.args[6] - (void *) &info;
+		const int expected_exit_size =
+			(void *) (&info.exit.is_error + 1) -
+			(void *) &info;
+		int status;
+
+		ASSERT_EQ(tracee_pid, wait(&status)) {
+			/* cannot happen */
+			LOG_KILL_TRACEE("wait: %m");
+		}
+		if (WIFEXITED(status)) {
+			tracee_pid = 0;	/* the tracee is no more */
+			ASSERT_EQ(0, WEXITSTATUS(status)) {
+				LOG_KILL_TRACEE("unexpected exit status %u",
+						WEXITSTATUS(status));
+			}
+			break;
+		}
+		ASSERT_FALSE(WIFSIGNALED(status)) {
+			tracee_pid = 0;	/* the tracee is no more */
+			LOG_KILL_TRACEE("unexpected signal %u",
+					WTERMSIG(status));
+		}
+		ASSERT_TRUE(WIFSTOPPED(status)) {
+			/* cannot happen */
+			LOG_KILL_TRACEE("unexpected wait status %#x", status);
+		}
+
+		ASSERT_LT(ptrace_stop, ARRAY_SIZE(si) * 2) {
+			LOG_KILL_TRACEE("ptrace stop overflow");
+		}
+
+		switch (WSTOPSIG(status)) {
+		case SIGSTOP:
+			ASSERT_EQ(0, ptrace_stop) {
+				LOG_KILL_TRACEE("unexpected signal stop");
+			}
+			ASSERT_EQ(0, sys_ptrace(PTRACE_SETOPTIONS, tracee_pid,
+						0, PTRACE_O_TRACESYSGOOD)) {
+				LOG_KILL_TRACEE("PTRACE_SETOPTIONS: %m");
+			}
+			break;
+
+		case SIGTRAP | 0x80:
+			ASSERT_LT(0, ptrace_stop) {
+				LOG_KILL_TRACEE("unexpected syscall stop");
+			}
+			ASSERT_LT(0, (rc = sys_ptrace(PTRACE_GET_SYSCALL_INFO,
+						      tracee_pid, size,
+						      (uintptr_t) &info))) {
+				LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #1: %m");
+			}
+			if (ptrace_stop & 1) {
+				/* entering syscall */
+				const struct si_entry *exp_entry =
+					&si[ptrace_stop / 2].entry[0];
+				const struct si_entry *set_entry =
+					&si[ptrace_stop / 2].entry[1];
+
+				/* check ptrace_syscall_info before the changes */
+				ASSERT_EQ(expected_entry_size, rc) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #1"
+							": entry stop mismatch");
+				}
+				check_psi_entry(_metadata, &info, exp_entry,
+						"PTRACE_GET_SYSCALL_INFO #1");
+
+				/* apply the changes */
+				info.entry.nr = set_entry->nr;
+				for (i = 0; i < ARRAY_SIZE(set_entry->args); ++i)
+					info.entry.args[i] = set_entry->args[i];
+				ASSERT_EQ(0, sys_ptrace(PTRACE_SET_SYSCALL_INFO,
+							tracee_pid, size,
+							(uintptr_t) &info)) {
+					LOG_KILL_TRACEE("PTRACE_SET_SYSCALL_INFO: %m");
+				}
+
+				/* check ptrace_syscall_info after the changes */
+				memset(&info, 0, sizeof(info));
+				info.op = 0xff;
+				ASSERT_LT(0, (rc = sys_ptrace(PTRACE_GET_SYSCALL_INFO,
+							      tracee_pid, size,
+							      (uintptr_t) &info))) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO: %m");
+				}
+				ASSERT_EQ(expected_entry_size, rc) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #2"
+							": entry stop mismatch");
+				}
+				check_psi_entry(_metadata, &info, set_entry,
+						"PTRACE_GET_SYSCALL_INFO #2");
+			} else {
+				/* exiting syscall */
+				const struct si_exit *exp_exit =
+					&si[ptrace_stop / 2 - 1].exit[0];
+				const struct si_exit *set_exit =
+					&si[ptrace_stop / 2 - 1].exit[1];
+
+				/* check ptrace_syscall_info before the changes */
+				ASSERT_EQ(expected_exit_size, rc) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #1"
+							": exit stop mismatch");
+				}
+				check_psi_exit(_metadata, &info, exp_exit,
+						"PTRACE_GET_SYSCALL_INFO #1");
+
+				/* apply the changes */
+				info.exit.is_error = set_exit->is_error;
+				info.exit.rval = set_exit->rval;
+				ASSERT_EQ(0, sys_ptrace(PTRACE_SET_SYSCALL_INFO,
+							tracee_pid, size,
+							(uintptr_t) &info)) {
+					LOG_KILL_TRACEE("PTRACE_SET_SYSCALL_INFO: %m");
+				}
+
+				/* check ptrace_syscall_info after the changes */
+				memset(&info, 0, sizeof(info));
+				info.op = 0xff;
+				ASSERT_LT(0, (rc = sys_ptrace(PTRACE_GET_SYSCALL_INFO,
+							      tracee_pid, size,
+							      (uintptr_t) &info))) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #2: %m");
+				}
+				ASSERT_EQ(expected_exit_size, rc) {
+					LOG_KILL_TRACEE("PTRACE_GET_SYSCALL_INFO #2"
+							": exit stop mismatch");
+				}
+				check_psi_exit(_metadata, &info, set_exit,
+						"PTRACE_GET_SYSCALL_INFO #2");
+			}
+			break;
+
+		default:
+			LOG_KILL_TRACEE("unexpected stop signal %u",
+					WSTOPSIG(status));
+			abort();
+		}
+
+		ASSERT_EQ(0, sys_ptrace(PTRACE_SYSCALL, tracee_pid, 0, 0)) {
+			LOG_KILL_TRACEE("PTRACE_SYSCALL: %m");
+		}
+	}
+
+	ASSERT_EQ(ptrace_stop, ARRAY_SIZE(si) * 2);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/ptrace/vmaccess.c b/tools/testing/selftests/ptrace/vmaccess.c
new file mode 100644
index 000000000000..3801b5831527
--- /dev/null
+++ b/tools/testing/selftests/ptrace/vmaccess.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2020 Bernd Edlinger <bernd.edlinger@hotmail.de>
+ * All rights reserved.
+ *
+ * Check whether /proc/$pid/mem can be accessed without causing deadlocks
+ * when de_thread is blocked with ->cred_guard_mutex held.
+ */
+
+#include "kselftest_harness.h"
+#include <stdio.h>
+#include <fcntl.h>
+#include <pthread.h>
+#include <signal.h>
+#include <unistd.h>
+#include <sys/ptrace.h>
+
+static void *thread(void *arg)
+{
+	ptrace(PTRACE_TRACEME, 0, 0L, 0L);
+	return NULL;
+}
+
+TEST(vmaccess)
+{
+	int f, pid = fork();
+	char mm[64];
+
+	if (!pid) {
+		pthread_t pt;
+
+		pthread_create(&pt, NULL, thread, NULL);
+		pthread_join(pt, NULL);
+		execlp("true", "true", NULL);
+	}
+
+	sleep(1);
+	sprintf(mm, "/proc/%d/mem", pid);
+	f = open(mm, O_RDONLY);
+	ASSERT_GE(f, 0);
+	close(f);
+	f = kill(pid, SIGCONT);
+	ASSERT_EQ(f, 0);
+}
+
+TEST(attach)
+{
+	int s, k, pid = fork();
+
+	if (!pid) {
+		pthread_t pt;
+
+		pthread_create(&pt, NULL, thread, NULL);
+		pthread_join(pt, NULL);
+		execlp("sleep", "sleep", "2", NULL);
+	}
+
+	sleep(1);
+	k = ptrace(PTRACE_ATTACH, pid, 0L, 0L);
+	ASSERT_EQ(errno, EAGAIN);
+	ASSERT_EQ(k, -1);
+	k = waitpid(-1, &s, WNOHANG);
+	ASSERT_NE(k, -1);
+	ASSERT_NE(k, 0);
+	ASSERT_NE(k, pid);
+	ASSERT_EQ(WIFEXITED(s), 1);
+	ASSERT_EQ(WEXITSTATUS(s), 0);
+	sleep(1);
+	k = ptrace(PTRACE_ATTACH, pid, 0L, 0L);
+	ASSERT_EQ(k, 0);
+	k = waitpid(-1, &s, 0);
+	ASSERT_EQ(k, pid);
+	ASSERT_EQ(WIFSTOPPED(s), 1);
+	ASSERT_EQ(WSTOPSIG(s), SIGSTOP);
+	k = ptrace(PTRACE_DETACH, pid, 0L, 0L);
+	ASSERT_EQ(k, 0);
+	k = waitpid(-1, &s, 0);
+	ASSERT_EQ(k, pid);
+	ASSERT_EQ(WIFEXITED(s), 1);
+	ASSERT_EQ(WEXITSTATUS(s), 0);
+	k = waitpid(-1, NULL, 0);
+	ASSERT_EQ(k, -1);
+	ASSERT_EQ(errno, ECHILD);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/rcutorture/.gitignore b/tools/testing/selftests/rcutorture/.gitignore
index 05838f6f2ebe..f6cbce77460b 100644
--- a/tools/testing/selftests/rcutorture/.gitignore
+++ b/tools/testing/selftests/rcutorture/.gitignore
@@ -1,6 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-only
 initrd
-linux-2.6
 b[0-9]*
-rcu-test-image
 res
 *.swp
diff --git a/tools/testing/selftests/rcutorture/Makefile b/tools/testing/selftests/rcutorture/Makefile
new file mode 100644
index 000000000000..5202dc666206
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0+
+all:
+	( cd ../../../..; tools/testing/selftests/rcutorture/bin/kvm.sh --duration 10 --configs TREE01 )
diff --git a/tools/testing/selftests/rcutorture/bin/config2csv.sh b/tools/testing/selftests/rcutorture/bin/config2csv.sh
new file mode 100755
index 000000000000..0cf55f1bf654
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/config2csv.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Create a spreadsheet from torture-test Kconfig options and kernel boot
+# parameters.  Run this in the directory containing the scenario files.
+#
+# Usage: config2csv path.csv [ "scenario1 scenario2 ..." ]
+#
+# By default, this script will take the list of scenarios from the CFLIST
+# file in that directory, otherwise it will consider only the scenarios
+# specified on the command line.  It will examine each scenario's file
+# and also its .boot file, if present, and create a column in the .csv
+# output file.  Note that "CFLIST" is a synonym for all the scenarios in the
+# CFLIST file, which allows easy comparison of those scenarios with selected
+# scenarios such as BUSTED that are normally omitted from CFLIST files.
+
+csvout=${1}
+if test -z "$csvout"
+then
+	echo "Need .csv output file as first argument."
+	exit 1
+fi
+shift
+defaultconfigs="`tr '\012' ' ' < CFLIST`"
+if test "$#" -eq 0
+then
+	scenariosarg=$defaultconfigs
+else
+	scenariosarg=$*
+fi
+scenarios="`echo $scenariosarg | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
+
+T=`mktemp -d /tmp/config2latex.sh.XXXXXX`
+trap 'rm -rf $T' 0
+
+cat << '---EOF---' >> $T/p.awk
+END	{
+---EOF---
+for i in $scenarios
+do
+	echo '	s["'$i'"] = 1;' >> $T/p.awk
+	grep -v '^#' < $i | grep -v '^ *$' > $T/p
+	if test -r $i.boot
+	then
+		tr -s ' ' '\012' < $i.boot | grep -v '^#' >> $T/p
+	fi
+	sed -e 's/^[^=]*$/&=?/' < $T/p |
+	sed -e 's/^\([^=]*\)=\(.*\)$/\tp["\1:'"$i"'"] = "\2";\n\tc["\1"] = 1;/' >> $T/p.awk
+done
+cat << '---EOF---' >> $T/p.awk
+	ns = asorti(s, ss);
+	nc = asorti(c, cs);
+	for (j = 1; j <= ns; j++)
+		printf ",\"%s\"", ss[j];
+	printf "\n";
+	for (i = 1; i <= nc; i++) {
+		printf "\"%s\"", cs[i];
+		for (j = 1; j <= ns; j++) {
+			printf ",\"%s\"", p[cs[i] ":" ss[j]];
+		}
+		printf "\n";
+	}
+}
+---EOF---
+awk -f $T/p.awk < /dev/null > $T/p.csv
+cp $T/p.csv $csvout
diff --git a/tools/testing/selftests/rcutorture/bin/config2frag.sh b/tools/testing/selftests/rcutorture/bin/config2frag.sh
deleted file mode 100755
index 56f51ae13d73..000000000000
--- a/tools/testing/selftests/rcutorture/bin/config2frag.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/bash
-# Usage: config2frag.sh < .config > configfrag
-#
-# Converts the "# CONFIG_XXX is not set" to "CONFIG_XXX=n" so that the
-# resulting file becomes a legitimate Kconfig fragment.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
-# Copyright (C) IBM Corporation, 2013
-#
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-
-LANG=C sed -e 's/^# CONFIG_\([a-zA-Z0-9_]*\) is not set$/CONFIG_\1=n/'
diff --git a/tools/testing/selftests/rcutorture/bin/configNR_CPUS.sh b/tools/testing/selftests/rcutorture/bin/configNR_CPUS.sh
index 43540f1828cc..2deea2169fc2 100755
--- a/tools/testing/selftests/rcutorture/bin/configNR_CPUS.sh
+++ b/tools/testing/selftests/rcutorture/bin/configNR_CPUS.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Extract the number of CPUs expected from the specified Kconfig-file
 # fragment by checking CONFIG_SMP and CONFIG_NR_CPUS.  If the specified
@@ -7,23 +8,9 @@
 #
 # Usage: configNR_CPUS.sh config-frag
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2013
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 cf=$1
 if test ! -r $cf
diff --git a/tools/testing/selftests/rcutorture/bin/config_override.sh b/tools/testing/selftests/rcutorture/bin/config_override.sh
new file mode 100755
index 000000000000..b3d2e7efa40c
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/config_override.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# config_override.sh base override
+#
+# Combines base and override, removing any Kconfig options from base
+# that conflict with any in override, concatenating what remains and
+# sending the result to standard output.
+#
+# Copyright (C) IBM Corporation, 2017
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+base=$1
+if test -r $base
+then
+	:
+else
+	echo Base file $base unreadable!!!
+	exit 1
+fi
+
+override=$2
+if test -r $override
+then
+	:
+else
+	echo Override file $override unreadable!!!
+	exit 1
+fi
+
+T="`mktemp -d ${TMPDIR-/tmp}/config_override.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+sed < $override -e 's/^/grep -v "/' -e 's/=.*$/="/' |
+	awk '
+	{
+		if (last)
+			print last " |";
+		last = $0;
+	}
+	END {
+		if (last)
+			print last;
+	}' > $T/script
+sh $T/script < $base
+cat $override
diff --git a/tools/testing/selftests/rcutorture/bin/configcheck.sh b/tools/testing/selftests/rcutorture/bin/configcheck.sh
index eee31e261bf7..99162d18bad3 100755
--- a/tools/testing/selftests/rcutorture/bin/configcheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/configcheck.sh
@@ -1,54 +1,46 @@
 #!/bin/bash
-# Usage: configcheck.sh .config .config-template
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
+# SPDX-License-Identifier: GPL-2.0+
 #
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+# Usage: configcheck.sh .config .config-template
 #
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
+# Non-empty output if errors detected.
 #
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
-T=/tmp/abat-chk-config.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/configcheck.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-mkdir $T
 
-cat $1 > $T/.config
+# function test_kconfig_enabled ( Kconfig-var=val )
+function test_kconfig_enabled () {
+	if ! grep -q "^$1$" $T/.config
+	then
+		echo :$1: improperly set
+		return 1
+	fi
+	return 0
+}
+
+# function test_kconfig_disabled ( Kconfig-var )
+function test_kconfig_disabled () {
+	if grep -q "^$1=n$" $T/.config
+	then
+		return 0
+	fi
+	if grep -q "^$1=" $T/.config
+	then
+		echo :$1=n: improperly set
+		return 1
+	fi
+	return 0
+}
 
-cat $2 | sed -e 's/\(.*\)=n/# \1 is not set/' -e 's/^#CHECK#//' |
-awk	'
-BEGIN	{
-		print "if grep -q \"" $0 "\" < '"$T/.config"'";
-		print "then";
-		print "\t:";
-		print "else";
-		if ($1 == "#") {
-			print "\tif grep -q \"" $2 "\" < '"$T/.config"'";
-			print "\tthen";
-			print "\t\tif test \"$firsttime\" = \"\""
-			print "\t\tthen"
-			print "\t\t\tfirsttime=1"
-			print "\t\tfi"
-			print "\t\techo \":" $2 ": improperly set\"";
-			print "\telse";
-			print "\t\t:";
-			print "\tfi";
-		} else {
-			print "\tif test \"$firsttime\" = \"\""
-			print "\tthen"
-			print "\t\tfirsttime=1"
-			print "\tfi"
-			print "\techo \":" $0 ": improperly set\"";
-		}
-		print "fi";
-	}' | sh
+sed -e 's/"//g' < $1 > $T/.config
+sed -e 's/^#CHECK#//' < $2 > $T/ConfigFragment
+grep '^CONFIG_.*=n$' $T/ConfigFragment |
+	sed -e 's/^/test_kconfig_disabled /' -e 's/=n$//' > $T/kconfig-n.sh
+. $T/kconfig-n.sh
+grep -v '^CONFIG_.*=n$' $T/ConfigFragment | grep '^CONFIG_' |
+	sed -e 's/^/test_kconfig_enabled /' > $T/kconfig-not-n.sh
+. $T/kconfig-not-n.sh
diff --git a/tools/testing/selftests/rcutorture/bin/configinit.sh b/tools/testing/selftests/rcutorture/bin/configinit.sh
index 3f81a1095206..28bdb3ac7ba6 100755
--- a/tools/testing/selftests/rcutorture/bin/configinit.sh
+++ b/tools/testing/selftests/rcutorture/bin/configinit.sh
@@ -1,6 +1,7 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
-# Usage: configinit.sh config-spec-file [ build output dir ]
+# Usage: configinit.sh config-spec-file results-dir
 #
 # Create a .config file from the spec file.  Run from the kernel source tree.
 # Exits with 0 if all went well, with 1 if all went well but the config
@@ -10,65 +11,33 @@
 # desired settings, for example, "CONFIG_NO_HZ=y".  For best results,
 # this should be a full pathname.
 #
-# The second argument is a optional path to a build output directory,
-# for example, "O=/tmp/foo".  If this argument is omitted, the .config
-# file will be generated directly in the current directory.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2013
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
-T=/tmp/configinit.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/configinit.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-mkdir $T
 
 # Capture config spec file.
 
 c=$1
-buildloc=$2
-builddir=
-if test -n $buildloc
-then
-	if echo $buildloc | grep -q '^O='
-	then
-		builddir=`echo $buildloc | sed -e 's/^O=//'`
-		if test ! -d $builddir
-		then
-			mkdir $builddir
-		fi
-	else
-		echo Bad build directory: \"$builddir\"
-		exit 2
-	fi
-fi
+resdir=$2
 
 sed -e 's/^\(CONFIG[0-9A-Z_]*\)=.*$/grep -v "^# \1" |/' < $c > $T/u.sh
 sed -e 's/^\(CONFIG[0-9A-Z_]*=\).*$/grep -v \1 |/' < $c >> $T/u.sh
 grep '^grep' < $T/u.sh > $T/upd.sh
 echo "cat - $c" >> $T/upd.sh
-make mrproper
-make $buildloc distclean > $builddir/Make.distclean 2>&1
-make $buildloc $TORTURE_DEFCONFIG > $builddir/Make.defconfig.out 2>&1
-mv $builddir/.config $builddir/.config.sav
-sh $T/upd.sh < $builddir/.config.sav > $builddir/.config
-cp $builddir/.config $builddir/.config.new
-yes '' | make $buildloc oldconfig > $builddir/Make.oldconfig.out 2> $builddir/Make.oldconfig.err
+if test -z "$TORTURE_TRUST_MAKE"
+then
+	make clean > $resdir/Make.clean 2>&1
+fi
+make $TORTURE_KMAKE_ARG $TORTURE_DEFCONFIG > $resdir/Make.defconfig.out 2>&1
+mv .config .config.sav
+sh $T/upd.sh < .config.sav > .config
+cp .config .config.new
+yes '' | make $TORTURE_KMAKE_ARG oldconfig > $resdir/Make.oldconfig.out 2> $resdir/Make.oldconfig.err
 
 # verify new config matches specification.
-configcheck.sh $builddir/.config $c
+configcheck.sh .config $c
 
 exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/console-badness.sh b/tools/testing/selftests/rcutorture/bin/console-badness.sh
new file mode 100755
index 000000000000..991fb11306eb
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/console-badness.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Scan standard input for error messages, dumping any found to standard
+# output.
+#
+# Usage: console-badness.sh
+#
+# Copyright (C) 2020 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+grep -E 'Badness|WARNING:|Warn|BUG|===========|BUG: KCSAN:|Call Trace:|Call trace:|Oops:|detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state|rcu_.*kthread starved for|!!!' |
+grep -v 'ODEBUG: ' |
+grep -v 'This means that this is a DEBUG kernel and it is' |
+grep -v 'Warning: unable to open an initial console' |
+grep -v 'Warning: Failed to add ttynull console. No stdin, stdout, and stderr.*the init process!' |
+grep -v 'NOHZ tick-stop error: Non-RCU local softirq work is pending, handler'
diff --git a/tools/testing/selftests/rcutorture/bin/cpus2use.sh b/tools/testing/selftests/rcutorture/bin/cpus2use.sh
index bb99cde3f5f9..6bb993001680 100755
--- a/tools/testing/selftests/rcutorture/bin/cpus2use.sh
+++ b/tools/testing/selftests/rcutorture/bin/cpus2use.sh
@@ -1,30 +1,28 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Get an estimate of how CPU-hoggy to be.
 #
 # Usage: cpus2use.sh
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2013
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
+if test -n "$TORTURE_ALLOTED_CPUS"
+then
+	echo $TORTURE_ALLOTED_CPUS
+	exit 0
+fi
 ncpus=`grep '^processor' /proc/cpuinfo | wc -l`
-idlecpus=`mpstat | tail -1 | \
-	awk -v ncpus=$ncpus '{ print ncpus * ($7 + $NF) / 100 }'`
+if mpstat -V > /dev/null 2>&1
+then
+	idlecpus=`mpstat | tail -1 | \
+		awk -v ncpus=$ncpus '{ print ncpus * ($7 + $NF) / 100 }'`
+else
+	# No mpstat command, so use all available CPUs.
+	idlecpus=$ncpus
+fi
 awk -v ncpus=$ncpus -v idlecpus=$idlecpus < /dev/null '
 BEGIN {
 	cpus2use = idlecpus;
diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index b325470c01b3..6e415ddb206f 100644..100755
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -1,31 +1,18 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Shell functions for the rest of the scripts.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2013
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 # bootparam_hotplug_cpu bootparam-string
 #
 # Returns 1 if the specified boot-parameter string tells rcutorture to
 # test CPU-hotplug operations.
 bootparam_hotplug_cpu () {
-	echo "$1" | grep -q "rcutorture\.onoff_"
+	echo "$1" | grep -q "torture\.onoff_"
 }
 
 # checkarg --argname argtype $# arg mustmatch cannotmatch
@@ -58,7 +45,7 @@ checkarg () {
 configfrag_boot_params () {
 	if test -r "$2.boot"
 	then
-		echo $1 `grep -v '^#' "$2.boot" | tr '\012' ' '`
+		echo `grep -v '^#' "$2.boot" | tr '\012' ' '` $1
 	else
 		echo $1
 	fi
@@ -66,9 +53,34 @@ configfrag_boot_params () {
 
 # configfrag_boot_cpus bootparam-string config-fragment-file config-cpus
 #
-# Decreases number of CPUs based on any maxcpus= boot parameters specified.
+# Decreases number of CPUs based on any nr_cpus= boot parameters specified.
 configfrag_boot_cpus () {
 	local bootargs="`configfrag_boot_params "$1" "$2"`"
+	local nr_cpus
+	if echo "${bootargs}" | grep -q 'nr_cpus=[0-9]'
+	then
+		nr_cpus="`echo "${bootargs}" | sed -e 's/^.*nr_cpus=\([0-9]*\).*$/\1/'`"
+		if test "$3" -gt "$nr_cpus"
+		then
+			echo $nr_cpus
+		else
+			echo $3
+		fi
+	else
+		echo $3
+	fi
+}
+
+# configfrag_boot_maxcpus bootparam-string config-fragment-file config-cpus
+#
+# Decreases number of CPUs based on any maxcpus= boot parameters specified.
+# This allows tests where additional CPUs come online later during the
+# test run.  However, the torture parameters will be set based on the
+# number of CPUs initially present, so the scripting should schedule
+# test runs based on the maxcpus= boot parameter controlling the initial
+# number of CPUs instead of on the ultimate number of CPUs.
+configfrag_boot_maxcpus () {
+	local bootargs="`configfrag_boot_params "$1" "$2"`"
 	local maxcpus
 	if echo "${bootargs}" | grep -q 'maxcpus=[0-9]'
 	then
@@ -96,11 +108,45 @@ configfrag_hotplug_cpu () {
 	grep -q '^CONFIG_HOTPLUG_CPU=y$' "$1"
 }
 
+# get_starttime
+#
+# Returns a cookie identifying the current time.
+get_starttime () {
+	awk 'BEGIN { print systime() }' < /dev/null
+}
+
+# get_starttime_duration starttime
+#
+# Given the return value from get_starttime, compute a human-readable
+# string denoting the time since get_starttime.
+get_starttime_duration () {
+	awk -v starttime=$1 '
+	BEGIN {
+		ts = systime() - starttime; 
+		tm = int(ts / 60);
+		th = int(ts / 3600);
+		td = int(ts / 86400);
+		d = td;
+		h = th - td * 24;
+		m = tm - th * 60;
+		s = ts - tm * 60;
+		if (d >= 1)
+			printf "%dd %d:%02d:%02d\n", d, h, m, s
+		else if (h >= 1)
+			printf "%d:%02d:%02d\n", h, m, s
+		else if (m >= 1)
+			printf "%d:%02d.0\n", m, s
+		else
+			print s " seconds"
+	}' < /dev/null
+}
+
 # identify_boot_image qemu-cmd
 #
 # Returns the relative path to the kernel build image.  This will be
-# arch/<arch>/boot/bzImage unless overridden with the TORTURE_BOOT_IMAGE
-# environment variable.
+# arch/<arch>/boot/bzImage or vmlinux if bzImage is not a target for the
+# architecture, unless overridden with the TORTURE_BOOT_IMAGE environment
+# variable.
 identify_boot_image () {
 	if test -n "$TORTURE_BOOT_IMAGE"
 	then
@@ -110,11 +156,14 @@ identify_boot_image () {
 		qemu-system-x86_64|qemu-system-i386)
 			echo arch/x86/boot/bzImage
 			;;
-		qemu-system-ppc64)
-			echo arch/powerpc/boot/bzImage
+		qemu-system-aarch64)
+			echo arch/arm64/boot/Image
+			;;
+		qemu-system-s390x)
+			echo arch/s390/boot/bzImage
 			;;
 		*)
-			echo ""
+			echo vmlinux
 			;;
 		esac
 	fi
@@ -135,6 +184,12 @@ identify_qemu () {
 	elif echo $u | grep -q "Intel 80386"
 	then
 		echo qemu-system-i386
+	elif echo $u | grep -q aarch64
+	then
+		echo qemu-system-aarch64
+	elif echo $u | grep -q 'IBM S/390'
+	then
+		echo qemu-system-s390x
 	elif uname -a | grep -q ppc64
 	then
 		echo qemu-system-ppc64
@@ -153,16 +208,22 @@ identify_qemu () {
 # Output arguments for the qemu "-append" string based on CPU type
 # and the TORTURE_QEMU_INTERACTIVE environment variable.
 identify_qemu_append () {
+	echo debug_boot_weak_hash
+	echo panic=-1
+	local console=ttyS0
 	case "$1" in
 	qemu-system-x86_64|qemu-system-i386)
-		echo noapic selinux=0 initcall_debug debug
+		echo selinux=0 initcall_debug debug
+		;;
+	qemu-system-aarch64)
+		console=ttyAMA0
 		;;
 	esac
 	if test -n "$TORTURE_QEMU_INTERACTIVE"
 	then
 		echo root=/dev/sda
 	else
-		echo console=ttyS0
+		echo console=$console
 	fi
 }
 
@@ -171,19 +232,30 @@ identify_qemu_append () {
 # Output arguments for qemu arguments based on the TORTURE_QEMU_MAC
 # and TORTURE_QEMU_INTERACTIVE environment variables.
 identify_qemu_args () {
+	local KVM_CPU=""
+	case "$1" in
+	qemu-system-x86_64)
+		KVM_CPU=kvm64
+		;;
+	qemu-system-i386)
+		KVM_CPU=kvm32
+		;;
+	esac
 	case "$1" in
 	qemu-system-x86_64|qemu-system-i386)
+		echo -machine q35,accel=kvm
+		echo -cpu ${KVM_CPU}
+		;;
+	qemu-system-aarch64)
+		echo -machine virt,gic-version=host -cpu host
 		;;
 	qemu-system-ppc64)
-		echo -enable-kvm -M pseries -cpu POWER7 -nodefaults
+		echo -M pseries -nodefaults
 		echo -device spapr-vscsi
 		if test -n "$TORTURE_QEMU_INTERACTIVE" -a -n "$TORTURE_QEMU_MAC"
 		then
 			echo -device spapr-vlan,netdev=net0,mac=$TORTURE_QEMU_MAC
 			echo -netdev bridge,br=br0,id=net0
-		elif test -n "$TORTURE_QEMU_INTERACTIVE"
-		then
-			echo -net nic -net user
 		fi
 		;;
 	esac
@@ -200,7 +272,7 @@ identify_qemu_args () {
 # Returns the number of virtual CPUs available to the aggregate of the
 # guest OSes.
 identify_qemu_vcpus () {
-	lscpu | grep '^CPU(s):' | sed -e 's/CPU(s)://'
+	getconf _NPROCESSORS_ONLN
 }
 
 # print_bug
@@ -231,13 +303,60 @@ specify_qemu_cpus () {
 		echo $2
 	else
 		case "$1" in
-		qemu-system-x86_64|qemu-system-i386)
+		qemu-system-x86_64|qemu-system-i386|qemu-system-aarch64)
 			echo $2 -smp $3
 			;;
 		qemu-system-ppc64)
-			nt="`lscpu | grep '^NUMA node0' | sed -e 's/^[^,]*,\([0-9]*\),.*$/\1/'`"
+			nt="`lscpu | sed -n 's/^Thread(s) per core:\s*//p'`"
 			echo $2 -smp cores=`expr \( $3 + $nt - 1 \) / $nt`,threads=$nt
 			;;
 		esac
 	fi
 }
+
+# specify_qemu_net qemu-args
+#
+# Appends a string containing "-net none" to qemu-args, unless the incoming
+# qemu-args already contains "-smp" or unless the TORTURE_QEMU_INTERACTIVE
+# environment variable is set, in which case the string that is be added is
+# instead "-net nic -net user".
+specify_qemu_net () {
+	if echo $1 | grep -q -e -net
+	then
+		echo $1
+	elif test -n "$TORTURE_QEMU_INTERACTIVE"
+	then
+		echo $1 -net nic -net user
+	else
+		echo $1 -net none
+	fi
+}
+
+# Extract the ftrace output from the console log output
+# The ftrace output in the original logs look like:
+# Dumping ftrace buffer:
+# ---------------------------------
+# [...]
+# ---------------------------------
+extract_ftrace_from_console() {
+	awk < "$1" '
+
+	/Dumping ftrace buffer:/ {
+		buffer_count++
+		print "Ftrace dump " buffer_count ":"
+		capture = 1
+		next
+	}
+
+	/---------------------------------/ {
+		if(capture == 1) {
+			capture = 2
+			next
+		} else if(capture == 2) {
+			capture = 0
+			print ""
+		}
+	}
+
+	capture == 2'
+}
diff --git a/tools/testing/selftests/rcutorture/bin/jitter.sh b/tools/testing/selftests/rcutorture/bin/jitter.sh
new file mode 100755
index 000000000000..3c1e5d3f8805
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/jitter.sh
@@ -0,0 +1,121 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Alternate sleeping and spinning on randomly selected CPUs.  The purpose
+# of this script is to inflict random OS jitter on a concurrently running
+# test.
+#
+# Usage: jitter.sh me jittering-path duration [ sleepmax [ spinmax ] ]
+#
+# me: Random-number-generator seed salt.
+# duration: Time to run in seconds.
+# jittering-path: Path to file whose removal will stop this script.
+# sleepmax: Maximum microseconds to sleep, defaults to one second.
+# spinmax: Maximum microseconds to spin, defaults to one millisecond.
+#
+# Copyright (C) IBM Corporation, 2016
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+me=$(($1 * 1000))
+jittering=$2
+duration=$3
+sleepmax=${4-1000000}
+spinmax=${5-1000}
+
+n=1
+
+starttime=`gawk 'BEGIN { print systime(); }' < /dev/null`
+
+nohotplugcpus=
+for i in /sys/devices/system/cpu/cpu[0-9]*
+do
+	if test -f $i/online
+	then
+		:
+	else
+		curcpu=`echo $i | sed -e 's/^[^0-9]*//'`
+		nohotplugcpus="$nohotplugcpus $curcpu"
+	fi
+done
+
+# Uses global variables startsecs, startns, endsecs, endns, and limit.
+# Exit code is success for time not yet elapsed and failure otherwise.
+function timecheck {
+	local done=`awk -v limit=$limit \
+			-v startsecs=$startsecs \
+			-v startns=$startns \
+			-v endsecs=$endsecs \
+			-v endns=$endns < /dev/null '
+		BEGIN {
+			delta = (endsecs - startsecs) * 1000 * 1000;
+			delta += int((endns - startns) / 1000);
+			print delta >= limit;
+		}'`
+	return $done
+}
+
+while :
+do
+	# Check for done.
+	t=`gawk -v s=$starttime 'BEGIN { print systime() - s; }' < /dev/null`
+	if test "$t" -gt "$duration"
+	then
+		exit 0;
+	fi
+
+	# Check for stop request.
+	if ! test -f "$jittering"
+	then
+		exit 1;
+	fi
+
+	# Set affinity to randomly selected online CPU
+	if cpus=`grep 1 /sys/devices/system/cpu/*/online 2>&1 |
+		 sed -e 's,/[^/]*$,,' -e 's/^[^0-9]*//'`
+	then
+		:
+	else
+		cpus=
+	fi
+	# Do not leave out non-hot-pluggable CPUs
+	cpus="$cpus $nohotplugcpus"
+
+	cpumask=`awk -v cpus="$cpus" -v me=$me -v n=$n 'BEGIN {
+		srand(n + me + systime());
+		ncpus = split(cpus, ca);
+		print ca[int(rand() * ncpus + 1)];
+	}' < /dev/null`
+	n=$(($n+1))
+	if ! taskset -c -p $cpumask $$ > /dev/null 2>&1
+	then
+		echo taskset failure: '"taskset -c -p ' $cpumask $$ '"'
+		exit 1
+	fi
+
+	# Sleep a random duration
+	sleeptime=`awk -v me=$me -v n=$n -v sleepmax=$sleepmax 'BEGIN {
+		srand(n + me + systime());
+		printf("%06d", int(rand() * sleepmax));
+	}' < /dev/null`
+	n=$(($n+1))
+	sleep .$sleeptime
+
+	# Spin a random duration, but with rather coarse granularity.
+	limit=`awk -v me=$me -v n=$n -v spinmax=$spinmax 'BEGIN {
+		srand(n + me + systime());
+		printf("%06d", int(rand() * spinmax));
+	}' < /dev/null`
+	n=$(($n+1))
+	startsecs=`date +%s`
+	startns=`date +%N`
+	endsecs=$startns
+	endns=$endns
+	while timecheck
+	do
+		endsecs=`date +%s`
+		endns=`date +%N`
+	done
+done
+
+exit 1
diff --git a/tools/testing/selftests/rcutorture/bin/jitterstart.sh b/tools/testing/selftests/rcutorture/bin/jitterstart.sh
new file mode 100644
index 000000000000..3d710ad291c3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/jitterstart.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Start up the specified number of jitter.sh scripts in the background.
+#
+# Usage: . jitterstart.sh n jittering-dir duration [ sleepmax [ spinmax ] ]
+#
+# n: Number of jitter.sh scripts to start up.
+# jittering-dir: Directory in which to put "jittering" file.
+# duration: Time to run in seconds.
+# sleepmax: Maximum microseconds to sleep, defaults to one second.
+# spinmax: Maximum microseconds to spin, defaults to one millisecond.
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+jitter_n=$1
+if test -z "$jitter_n"
+then
+	echo jitterstart.sh: Missing count of jitter.sh scripts to start.
+	exit 33
+fi
+jittering_dir=$2
+if test -z "$jittering_dir"
+then
+	echo jitterstart.sh: Missing directory in which to place jittering file.
+	exit 34
+fi
+shift
+shift
+
+touch ${jittering_dir}/jittering
+for ((jitter_i = 1; jitter_i <= $jitter_n; jitter_i++))
+do
+	jitter.sh $jitter_i "${jittering_dir}/jittering" "$@" &
+done
diff --git a/tools/testing/selftests/rcutorture/bin/jitterstop.sh b/tools/testing/selftests/rcutorture/bin/jitterstop.sh
new file mode 100644
index 000000000000..576a4cf4b79a
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/jitterstop.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Remove the "jittering" file, signaling the jitter.sh scripts to stop,
+# then wait for them to terminate.
+#
+# Usage: . jitterstop.sh jittering-dir
+#
+# jittering-dir: Directory containing "jittering" file.
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+jittering_dir=$1
+if test -z "$jittering_dir"
+then
+	echo jitterstop.sh: Missing directory in which to place jittering file.
+	exit 34
+fi
+
+rm -f ${jittering_dir}/jittering
+wait
diff --git a/tools/testing/selftests/rcutorture/bin/kcsan-collapse.sh b/tools/testing/selftests/rcutorture/bin/kcsan-collapse.sh
new file mode 100755
index 000000000000..1af5d6b86b39
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kcsan-collapse.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# If this was a KCSAN run, collapse the reports in the various console.log
+# files onto pairs of functions.
+#
+# Usage: kcsan-collapse.sh resultsdir
+#
+# Copyright (C) 2020 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+if test -z "$TORTURE_KCONFIG_KCSAN_ARG"
+then
+	exit 0
+fi
+find $1 -name console.log -exec cat {} \; |
+	grep "BUG: KCSAN: " |
+	sed -e 's/^\[[^]]*] //' |
+	sort |
+	uniq -c |
+	sort -k1nr > $1/kcsan.sum
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-again.sh b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
new file mode 100755
index 000000000000..b5239b52cb5d
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-again.sh
@@ -0,0 +1,245 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Rerun a series of tests under KVM.
+#
+# Usage: kvm-again.sh /path/to/old/run [ options ]
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+scriptname=$0
+args="$*"
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-again.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+if ! test -d tools/testing/selftests/rcutorture/bin
+then
+	echo $scriptname must be run from top-level directory of kernel source tree.
+	exit 1
+fi
+
+oldrun=$1
+shift
+if ! test -d "$oldrun"
+then
+	echo "Usage: $scriptname /path/to/old/run [ options ]"
+	exit 1
+fi
+if ! cp "$oldrun/scenarios" $T/scenarios.oldrun
+then
+	# Later on, can reconstitute this from console.log files.
+	echo Prior run scenarios file does not exist: $oldrun/scenarios
+	exit 1
+fi
+
+if test -f "$oldrun/torture_suite"
+then
+	torture_suite="`cat $oldrun/torture_suite`"
+elif test -f "$oldrun/TORTURE_SUITE"
+then
+	torture_suite="`cat $oldrun/TORTURE_SUITE`"
+else
+	echo "Prior run torture_suite file does not exist: $oldrun/{torture_suite,TORTURE_SUITE}"
+	exit 1
+fi
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+bootargs=
+dryrun=
+dur=
+default_link="cp -R"
+resdir="`pwd`/tools/testing/selftests/rcutorture/res"
+rundir="$resdir/`date +%Y.%m.%d-%H.%M.%S-again`"
+got_datestamp=
+got_rundir=
+
+startdate="`date`"
+starttime="`get_starttime`"
+
+usage () {
+	echo "Usage: $scriptname $oldrun [ arguments ]:"
+	echo "       --bootargs kernel-boot-arguments"
+	echo "       --datestamp string"
+	echo "       --dryrun"
+	echo "       --duration minutes | <seconds>s | <hours>h | <days>d"
+	echo "       --link hard|soft|copy|inplace|inplace-force"
+	echo "       --remote"
+	echo "       --rundir /new/res/path"
+	echo "Command line: $scriptname $args"
+	exit 1
+}
+
+while test $# -gt 0
+do
+	case "$1" in
+	--bootargs|--bootarg)
+		checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
+		bootargs="$bootargs $2"
+		shift
+		;;
+	--datestamp)
+		checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
+		if test -n "$got_rundir" || test -n "$got_datestamp"
+		then
+			echo Only one of --datestamp or --rundir may be specified
+			usage
+		fi
+		got_datestamp=y
+		ds=$2
+		rundir="$resdir/$ds"
+		if test -e "$rundir"
+		then
+			echo "--datestamp $2: Already exists."
+			usage
+		fi
+		shift
+		;;
+	--dryrun)
+		dryrun=1
+		;;
+	--duration)
+		checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
+		mult=60
+		if echo "$2" | grep -q 's$'
+		then
+			mult=1
+		elif echo "$2" | grep -q 'h$'
+		then
+			mult=3600
+		elif echo "$2" | grep -q 'd$'
+		then
+			mult=86400
+		fi
+		ts=`echo $2 | sed -e 's/[smhd]$//'`
+		dur=$(($ts*mult))
+		shift
+		;;
+	--link)
+		checkarg --link "hard|soft|copy|inplace|inplace-force" "$#" "$2" 'hard\|soft\|copy\|inplace\|inplace-force' '^--'
+		case "$2" in
+		copy)
+			arg_link="cp -R"
+			;;
+		hard)
+			arg_link="cp -Rl"
+			;;
+		soft)
+			arg_link="cp -Rs"
+			;;
+		inplace)
+			arg_link="inplace"
+			rundir="$oldrun"
+			;;
+		inplace-force)
+			arg_link="inplace-force"
+			rundir="$oldrun"
+			;;
+		esac
+		shift
+		;;
+	--remote)
+		arg_remote=1
+		default_link="cp -as"
+		;;
+	--rundir)
+		checkarg --rundir "(absolute pathname)" "$#" "$2" '^/' '^error'
+		if test -n "$got_rundir" || test -n "$got_datestamp"
+		then
+			echo Only one of --datestamp or --rundir may be specified
+			usage
+		fi
+		got_rundir=y
+		rundir=$2
+		if test -e "$rundir"
+		then
+			echo "--rundir $2: Already exists."
+			usage
+		fi
+		shift
+		;;
+	*)
+		if test -n "$1"
+		then
+			echo Unknown argument $1
+			usage
+		fi
+		;;
+	esac
+	shift
+done
+if test -z "$arg_link"
+then
+	arg_link="$default_link"
+fi
+
+echo ---- Re-run results directory: $rundir
+
+if test "$oldrun" != "$rundir"
+then
+	# Copy old run directory tree over and adjust.
+	mkdir -p "`dirname "$rundir"`"
+	if ! $arg_link "$oldrun" "$rundir"
+	then
+		echo "Cannot copy from $oldrun to $rundir."
+		usage
+	fi
+	rm -f "$rundir"/*/{console.log,console.log.diags,qemu_pid,qemu-pid,qemu-retval,Warnings,kvm-test-1-run.sh.out,kvm-test-1-run-qemu.sh.out,vmlinux} "$rundir"/log
+	touch "$rundir/log"
+	echo $scriptname $args | tee -a "$rundir/log"
+	echo $oldrun > "$rundir/re-run"
+	if ! test -d "$rundir/../../bin"
+	then
+		$arg_link "$oldrun/../../bin" "$rundir/../.."
+	fi
+else
+	# Check for a run having already happened.
+	find "$rundir" -name console.log -print > $T/oldrun-console.log
+	if test -s $T/oldrun-console.log
+	then
+		echo Run already took place in $rundir
+		if test "$arg_link" = inplace
+		then
+			usage
+		fi
+	fi
+fi
+
+# Find runs to be done based on their qemu-cmd files.
+for i in $rundir/*/qemu-cmd
+do
+	cp "$i" $T
+	qemu_cmd_dir="`dirname "$i"`"
+	kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`"
+	jitter_dir="`dirname "$kernel_dir"`"
+	kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" "$dur" "$bootargs" < $T/qemu-cmd > $i
+	if test -n "$arg_remote"
+	then
+		echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i
+	fi
+done
+
+# Extract settings from the last qemu-cmd file transformed above.
+grep '^#' $i | sed -e 's/^# //' > $T/qemu-cmd-settings
+. $T/qemu-cmd-settings
+
+grep -v '^#' $T/scenarios.oldrun | awk '
+{
+	curbatch = "";
+	for (i = 2; i <= NF; i++)
+		curbatch = curbatch " " $i;
+	print "kvm-test-1-run-batch.sh" curbatch;
+}' > $T/runbatches.sh
+
+if test -n "$dryrun"
+then
+	echo ---- Dryrun complete, directory: $rundir | tee -a "$rundir/log"
+else
+	( cd "$rundir"; sh $T/runbatches.sh ) | tee -a "$rundir/log"
+	kvm-end-run-stats.sh "$rundir" "$starttime"
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh b/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh
new file mode 100755
index 000000000000..46b08cd16ba5
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-assign-cpus.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Produce awk statements roughly depicting the system's CPU and cache
+# layout.  If the required information is not available, produce
+# error messages as awk comments.  Successful exit regardless.
+#
+# Usage: kvm-assign-cpus.sh /path/to/sysfs
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-assign-cpus.sh.XXXXXX`"
+trap 'rm -rf $T' 0 2
+
+sysfsdir=${1-/sys/devices/system/node}
+if ! cd "$sysfsdir" > $T/msg 2>&1
+then
+	sed -e 's/^/# /' < $T/msg
+	exit 0
+fi
+nodelist="`ls -d node*`"
+for i in node*
+do
+	if ! test -d $i/
+	then
+		echo "# Not a directory: $sysfsdir/node*"
+		exit 0
+	fi
+	for j in $i/cpu*/cache/index*
+	do
+		if ! test -d $j/
+		then
+			echo "# Not a directory: $sysfsdir/$j"
+			exit 0
+		else
+			break
+		fi
+	done
+	indexlist="`ls -d $i/cpu* | grep 'cpu[0-9][0-9]*' | head -1 | sed -e 's,^.*$,ls -d &/cache/index*,' | sh | sed -e 's,^.*/,,'`"
+	break
+done
+for i in node*/cpu*/cache/index*/shared_cpu_list
+do
+	if ! test -f $i
+	then
+		echo "# Not a file: $sysfsdir/$i"
+		exit 0
+	else
+		break
+	fi
+done
+firstshared=
+for i in $indexlist
+do
+	rm -f $T/cpulist
+	for n in node*
+	do
+		f="$n/cpu*/cache/$i/shared_cpu_list"
+		if ! cat $f > $T/msg 2>&1
+		then
+			sed -e 's/^/# /' < $T/msg
+			exit 0
+		fi
+		cat $f >> $T/cpulist
+	done
+	if grep -q '[-,]' $T/cpulist
+	then
+		if test -z "$firstshared"
+		then
+			firstshared="$i"
+		fi
+	fi
+done
+if test -z "$firstshared"
+then
+	splitindex="`echo $indexlist | sed -e 's/ .*$//'`"
+else
+	splitindex="$firstshared"
+fi
+nodenum=0
+for n in node*
+do
+	cat $n/cpu*/cache/$splitindex/shared_cpu_list | sort -u -k1n |
+	awk -v nodenum="$nodenum" '
+	BEGIN {
+		idx = 0;
+	}
+
+	{
+		nlists = split($0, cpulists, ",");
+		for (i = 1; i <= nlists; i++) {
+			listsize = split(cpulists[i], cpus, "-");
+			if (listsize == 1)
+				cpus[2] = cpus[1];
+			for (j = cpus[1]; j <= cpus[2]; j++) {
+				print "cpu[" nodenum "][" idx "] = " j ";";
+				idx++;
+			}
+		}
+	}
+
+	END {
+		print "nodecpus[" nodenum "] = " idx ";";
+	}'
+	nodenum=`expr $nodenum + 1`
+done
+echo "numnodes = $nodenum;"
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-build.sh b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
index 00cb0db2643d..3edfd064ef81 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
@@ -1,71 +1,53 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Build a kvm-ready Linux kernel from the tree in the current directory.
 #
-# Usage: kvm-build.sh config-template build-dir more-configs
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
+# Usage: kvm-build.sh config-template resdir
 #
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
-config_template=${1}
-if test -z "$config_template" -o ! -f "$config_template" -o ! -r "$config_template"
-then
-	echo "kvm-build.sh :$config_template: Not a readable file"
-	exit 1
-fi
-builddir=${2}
-if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
+if test -f "$TORTURE_STOPFILE"
 then
-	echo "kvm-build.sh :$builddir: Not a writable directory, cannot build into it"
+	echo "kvm-build.sh early exit due to run STOP request"
 	exit 1
 fi
-moreconfigs=${3}
-if test -z "$moreconfigs" -o ! -r "$moreconfigs"
+
+config_template=${1}
+if test -z "$config_template" -o ! -f "$config_template" -o ! -r "$config_template"
 then
-	echo "kvm-build.sh :$moreconfigs: Not a readable file"
+	echo "kvm-build.sh :$config_template: Not a readable file"
 	exit 1
 fi
+resdir=${2}
 
-T=/tmp/test-linux.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-build.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-mkdir $T
 
-grep -v 'CONFIG_[A-Z]*_TORTURE_TEST' < ${config_template} > $T/config
+cp ${config_template} $T/config
 cat << ___EOF___ >> $T/config
 CONFIG_INITRAMFS_SOURCE="$TORTURE_INITRD"
 CONFIG_VIRTIO_PCI=y
 CONFIG_VIRTIO_CONSOLE=y
 ___EOF___
-cat $moreconfigs >> $T/config
 
-configinit.sh $T/config O=$builddir
+configinit.sh $T/config $resdir
 retval=$?
 if test $retval -gt 1
 then
 	exit 2
 fi
-ncpus=`cpus2use.sh`
-make O=$builddir -j$ncpus $TORTURE_KMAKE_ARG > $builddir/Make.out 2>&1
+
+# Tell "make" to use double the number of real CPUs on the build system.
+ncpus="`getconf _NPROCESSORS_ONLN`"
+make -j$((2 * ncpus)) $TORTURE_KMAKE_ARG > $resdir/Make.out 2>&1
 retval=$?
-if test $retval -ne 0 || grep "rcu[^/]*": < $builddir/Make.out | egrep -q "Stop|Error|error:|warning:" || egrep -q "Stop|Error|error:" < $builddir/Make.out
+if test $retval -ne 0 || grep "rcu[^/]*": < $resdir/Make.out | grep -E -q "Stop|ERROR|Error|error:|warning:" || grep -E -q "Stop|ERROR|Error|error:" < $resdir/Make.out
 then
 	echo Kernel build error
-	egrep "Stop|Error|error:|warning:" < $builddir/Make.out
+	grep -E "Stop|Error|error:|warning:" < $resdir/Make.out
 	echo Run aborted.
 	exit 3
 fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-check-branches.sh b/tools/testing/selftests/rcutorture/bin/kvm-check-branches.sh
new file mode 100755
index 000000000000..ed0ec7f0927e
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-check-branches.sh
@@ -0,0 +1,102 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Run a group of kvm.sh tests on the specified commits.  This currently
+# unconditionally does three-minute runs on each scenario in CFLIST,
+# taking advantage of all available CPUs and trusting the "make" utility.
+# In the short term, adjustments can be made by editing this script and
+# CFLIST.  If some adjustments appear to have ongoing value, this script
+# might grow some command-line arguments.
+#
+# Usage: kvm-check-branches.sh commit1 commit2..commit3 commit4 ...
+#
+# This script considers its arguments one at a time.  If more elaborate
+# specification of commits is needed, please use "git rev-list" to
+# produce something that this simple script can understand.  The reason
+# for retaining the simplicity is that it allows the user to more easily
+# see which commit came from which branch.
+#
+# This script creates a yyyy.mm.dd-hh.mm.ss-group entry in the "res"
+# directory.  The calls to kvm.sh create the usual entries, but this script
+# moves them under the yyyy.mm.dd-hh.mm.ss-group entry, each in its own
+# directory numbered in run order, that is, "0001", "0002", and so on.
+# For successful runs, the large build artifacts are removed.  Doing this
+# reduces the disk space required by about two orders of magnitude for
+# successful runs.
+#
+# Copyright (C) Facebook, 2020
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+if ! git status > /dev/null 2>&1
+then
+	echo '!!!' This script needs to run in a git archive. 1>&2
+	echo '!!!' Giving up. 1>&2
+	exit 1
+fi
+
+# Remember where we started so that we can get back at the end.
+curcommit="`git status | head -1 | awk '{ print $NF }'`"
+
+nfail=0
+ntry=0
+resdir="tools/testing/selftests/rcutorture/res"
+ds="`date +%Y.%m.%d-%H.%M.%S`-group"
+if ! test -e $resdir
+then
+	mkdir $resdir || :
+fi
+mkdir $resdir/$ds
+echo Results directory: $resdir/$ds
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+echo Using all `identify_qemu_vcpus` CPUs.
+
+# Each pass through this loop does one command-line argument.
+for gitbr in $@
+do
+	echo ' --- git branch ' $gitbr
+
+	# Each pass through this loop tests one commit.
+	for i in `git rev-list "$gitbr"`
+	do
+		ntry=`expr $ntry + 1`
+		idir=`awk -v ntry="$ntry" 'END { printf "%04d", ntry; }' < /dev/null`
+		echo ' --- commit ' $i from branch $gitbr
+		date
+		mkdir $resdir/$ds/$idir
+		echo $gitbr > $resdir/$ds/$idir/gitbr
+		echo $i >> $resdir/$ds/$idir/gitbr
+
+		# Test the specified commit.
+		git checkout $i > $resdir/$ds/$idir/git-checkout.out 2>&1
+		echo git checkout return code: $? "(Commit $ntry: $i)"
+		kvm.sh --allcpus --duration 3 --trust-make --datestamp "$ds/$idir" > $resdir/$ds/$idir/kvm.sh.out 2>&1
+		ret=$?
+		echo kvm.sh return code $ret for commit $i from branch $gitbr
+		echo Run results: $resdir/$ds/$idir
+		if test "$ret" -ne 0
+		then
+			# Failure, so leave all evidence intact.
+			nfail=`expr $nfail + 1`
+		else
+			# Success, so remove large files to save about 1GB.
+			( cd $resdir/$ds/$idir/$rrd; rm -f */vmlinux */bzImage */System.map */Module.symvers )
+		fi
+	done
+done
+date
+
+# Go back to the original commit.
+git checkout "$curcommit"
+
+if test $nfail -ne 0
+then
+	echo '!!! ' $nfail failures in $ntry 'runs!!!'
+	exit 1
+else
+	echo No failures in $ntry runs.
+	exit 0
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh b/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh
new file mode 100755
index 000000000000..2b56baceb05d
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-end-run-stats.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Check the status of the specified run.
+#
+# Usage: kvm-end-run-stats.sh /path/to/run starttime
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+# scriptname=$0
+# args="$*"
+rundir="$1"
+if ! test -d "$rundir"
+then
+	echo kvm-end-run-stats.sh: Specified run directory does not exist: $rundir
+	exit 1
+fi
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-end-run-stats.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+default_starttime="`get_starttime`"
+starttime="${2-default_starttime}"
+
+echo | tee -a "$rundir/log"
+echo | tee -a "$rundir/log"
+echo " --- `date` Test summary:" | tee -a "$rundir/log"
+echo Results directory: $rundir | tee -a "$rundir/log"
+kcsan-collapse.sh "$rundir" | tee -a "$rundir/log"
+kvm-recheck.sh "$rundir" > $T/kvm-recheck.sh.out 2>&1
+ret=$?
+cat $T/kvm-recheck.sh.out | tee -a "$rundir/log"
+echo " --- Done at `date` (`get_starttime_duration $starttime`) exitcode $ret" | tee -a "$rundir/log"
+exit $ret
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
new file mode 100755
index 000000000000..28981007465b
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh
@@ -0,0 +1,79 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Invoke a text editor on all console.log files for all runs with diagnostics,
+# that is, on all such files having a console.log.diags counterpart.
+# Note that both console.log.diags and console.log are passed to the
+# editor (currently defaulting to "vi"), allowing the user to get an
+# idea of what to search for in the console.log file.
+#
+# Usage: kvm-find-errors.sh directory
+#
+# The "directory" above should end with the date/time directory, for example,
+# "tools/testing/selftests/rcutorture/res/2018.02.25-14:27:27".
+# Returns error status reflecting the success (or not) of the specified run.
+#
+# Copyright (C) IBM Corporation, 2018
+#
+# Author: Paul E. McKenney <paulmck@linux.ibm.com>
+
+rundir="${1}"
+if test -z "$rundir" -o ! -d "$rundir"
+then
+	echo Directory "$rundir" not found.
+	echo Usage: $0 directory
+	exit 1
+fi
+editor=${EDITOR-vi}
+
+# Find builds with errors
+files=
+for i in ${rundir}/*/Make.out
+do
+	scenariodir="`dirname $i`"
+	scenariobasedir="`echo ${scenariodir} | sed -e 's/\.[0-9]*$//'`"
+	if grep -E -q "error:|warning:|^ld: .*undefined reference to" < $i
+	then
+		grep -E "error:|warning:|^ld: .*undefined reference to" < $i > $i.diags
+		files="$files $i.diags $i"
+	elif ! test -f ${scenariobasedir}/vmlinux && ! test -f ${scenariobasedir}/vmlinux.xz && ! test -f "${rundir}/re-run"
+	then
+		echo No ${scenariobasedir}/vmlinux file > $i.diags
+		files="$files $i.diags $i"
+	fi
+done
+if test -n "$files"
+then
+	$editor $files
+	editorret=1
+else
+	echo No build errors.
+fi
+if grep -q -e "--build-\?only" < ${rundir}/log && ! test -f "${rundir}/remote-log"
+then
+	echo Build-only run, no console logs to check.
+	exit $editorret
+fi
+
+# Find console logs with errors
+files=
+for i in ${rundir}/*/console.log
+do
+	if test -r $i.diags
+	then
+		files="$files $i.diags $i"
+	fi
+done
+if test -n "$files"
+then
+	$editor $files
+	exit 1
+else
+	echo No errors in console logs.
+	if test -n "$editorret"
+	then
+		exit $editorret
+	else
+		exit 0
+	fi
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-get-cpus-script.sh b/tools/testing/selftests/rcutorture/bin/kvm-get-cpus-script.sh
new file mode 100755
index 000000000000..20c7c53c5795
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-get-cpus-script.sh
@@ -0,0 +1,88 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Create an awk script that takes as input numbers of CPUs and outputs
+# lists of CPUs, one per line in both cases.
+#
+# Usage: kvm-get-cpus-script.sh /path/to/cpu/arrays /path/to/put/script [ /path/to/state ]
+#
+# The CPU arrays are output by kvm-assign-cpus.sh, and are valid awk
+# statements initializing the variables describing the system's topology.
+#
+# The optional state is input by this script (if the file exists and is
+# non-empty), and can also be output by this script.
+
+cpuarrays="${1-/sys/devices/system/node}"
+scriptfile="${2}"
+statefile="${3}"
+
+if ! test -f "$cpuarrays"
+then
+	echo "File not found: $cpuarrays" 1>&2
+	exit 1
+fi
+scriptdir="`dirname "$scriptfile"`"
+if ! test -d "$scriptdir" || ! test -x "$scriptdir" || ! test -w "$scriptdir"
+then
+	echo "Directory not usable for script output: $scriptdir"
+	exit 1
+fi
+
+cat << '___EOF___' > "$scriptfile"
+BEGIN {
+___EOF___
+cat "$cpuarrays" >> "$scriptfile"
+if test -r "$statefile"
+then
+	cat "$statefile" >> "$scriptfile"
+fi
+cat << '___EOF___' >> "$scriptfile"
+}
+
+# Do we have the system architecture to guide CPU affinity?
+function gotcpus()
+{
+	return numnodes != "";
+}
+
+# Return a comma-separated list of the next n CPUs.
+function nextcpus(n,  i, s)
+{
+	for (i = 0; i < n; i++) {
+		if (nodecpus[curnode] == "")
+			curnode = 0;
+		if (cpu[curnode][curcpu[curnode]] == "")
+			curcpu[curnode] = 0;
+		if (s != "")
+			s = s ",";
+		s = s cpu[curnode][curcpu[curnode]];
+		curcpu[curnode]++;
+		curnode++
+	}
+	return s;
+}
+
+# Dump out the current node/CPU state so that a later invocation of this
+# script can continue where this one left off.  Of course, this only works
+# when a state file was specified and where there was valid sysfs state.
+# Returns 1 if the state was dumped, 0 otherwise.
+#
+# Dumping the state for one system configuration and loading it into
+# another isn't likely to do what you want, whatever that might be.
+function dumpcpustate(  i, fn)
+{
+___EOF___
+echo '	fn = "'"$statefile"'";' >> $scriptfile
+cat << '___EOF___' >> "$scriptfile"
+	if (fn != "" && gotcpus()) {
+		print "curnode = " curnode ";" > fn;
+		for (i = 0; i < numnodes; i++)
+			if (curcpu[i] != "")
+				print "curcpu[" i "] = " curcpu[i] ";" >> fn;
+		return 1;
+	}
+	if (fn != "")
+		print "# No CPU state to dump." > fn;
+	return 0;
+}
+___EOF___
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
index 43f764098e50..db2c0e2c8e1d 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-lock.sh
@@ -1,29 +1,16 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Analyze a given results directory for locktorture progress.
 #
 # Usage: kvm-recheck-lock.sh resdir
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2014
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 i="$1"
-if test -d $i
+if test -d "$i" -a -r "$i"
 then
 	:
 else
@@ -38,7 +25,7 @@ then
 	echo "$configfile -------"
 else
 	title="$configfile ------- $ncs acquisitions/releases"
-	dur=`sed -e 's/^.* locktorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
+	dur=`grep -v '^#' $i/qemu-cmd | sed -e 's/^.* locktorture.shutdown_secs=//' -e 's/ .*$//' 2> /dev/null`
 	if test -z "$dur"
 	then
 		:
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
index 559e01ac86be..43e1387234d1 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcu.sh
@@ -1,55 +1,61 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Analyze a given results directory for rcutorture progress.
 #
 # Usage: kvm-recheck-rcu.sh resdir
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2014
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 i="$1"
-if test -d $i
+if test -d "$i" -a -r "$i"
 then
 	:
 else
 	echo Unreadable results directory: $i
 	exit 1
 fi
-. tools/testing/selftests/rcutorture/bin/functions.sh
+. functions.sh
 
 configfile=`echo $i | sed -e 's/^.*\///'`
 ngps=`grep ver: $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* ver: //' -e 's/ .*$//'`
+stopstate="`grep 'End-test grace-period state: g' $i/console.log 2> /dev/null |
+	    tail -1 | sed -e 's/^\[[ 0-9.]*] //' |
+	    awk '{ print \"[\" $1 \" \" $5 \" \" $6 \" \" $7 \"]\"; }' |
+	    tr -d '\012\015'`"
+fwdprog="`grep 'rcu_torture_fwd_prog n_max_cbs: ' $i/console.log 2> /dev/null | sed -e 's/^\[[^]]*] //' | sort -k3nr | head -1 | awk '{ print $2 " " $3 }' | tr -d '\015'`"
 if test -z "$ngps"
 then
-	echo "$configfile -------"
+	echo "$configfile ------- " $stopstate
 else
-	title="$configfile ------- $ngps grace periods"
-	dur=`sed -e 's/^.* rcutorture.shutdown_secs=//' -e 's/ .*$//' < $i/qemu-cmd 2> /dev/null`
+	title="$configfile ------- $ngps GPs"
+	dur=`grep -v '^#' $i/qemu-cmd | sed -e 's/^.* rcutorture.shutdown_secs=//' -e 's/ .*$//'`
 	if test -z "$dur"
 	then
 		:
 	else
 		ngpsps=`awk -v ngps=$ngps -v dur=$dur '
 			BEGIN { print ngps / dur }' < /dev/null`
-		title="$title ($ngpsps per second)"
+		title="$title ($ngpsps/s)"
 	fi
-	echo $title
-	nclosecalls=`grep --binary-files=text 'torture: Reader Batch' $i/console.log | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'`
+	echo $title $stopstate $fwdprog
+	nclosecalls=`grep --binary-files=text 'torture: Reader Batch' $i/console.log | tail -1 | \
+		awk -v sum=0 '
+		{
+			for (i = 0; i <= NF; i++) {
+				sum += $i;
+				if ($i ~ /Batch:/) {
+					sum = 0;
+					i = i + 2;
+				}
+			}
+		}
+
+		END {
+			print sum
+		}'`
 	if test -z "$nclosecalls"
 	then
 		exit 0
@@ -66,4 +72,5 @@ else
 	else
 		print_warning $nclosecalls "Reader Batch close calls in" $(($dur/60)) minute run: $i
 	fi
+	echo $nclosecalls "Reader Batch close calls in" $(($dur/60)) minute run: $i > $i/console.log.rcu.diags
 fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh
new file mode 100755
index 000000000000..d4bec538086d
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale-ftrace.sh
@@ -0,0 +1,109 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Analyze a given results directory for rcuscale performance measurements,
+# looking for ftrace data.  Exits with 0 if data was found, analyzed, and
+# printed.  Intended to be invoked from kvm-recheck-rcuscale.sh after
+# argument checking.
+#
+# Usage: kvm-recheck-rcuscale-ftrace.sh resdir
+#
+# Copyright (C) IBM Corporation, 2016
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+i="$1"
+. functions.sh
+
+if test "`grep -c 'rcu_exp_grace_period.*start' < $i/console.log`" -lt 100
+then
+	exit 10
+fi
+
+sed -e 's/^\[[^]]*]//' < $i/console.log |
+grep 'us : rcu_exp_grace_period' |
+sed -e 's/us : / : /' |
+tr -d '\015' |
+awk '
+$8 == "start" {
+	if (startseq != "")
+		nlost++;
+	starttask = $1;
+	starttime = $3;
+	startseq = $7;
+	seqtask[startseq] = starttask;
+}
+
+$8 == "end" {
+	if (startseq == $7) {
+		curgpdur = $3 - starttime;
+		gptimes[++n] = curgpdur;
+		gptaskcnt[starttask]++;
+		sum += curgpdur;
+		if (curgpdur > 1000)
+			print "Long GP " starttime "us to " $3 "us (" curgpdur "us)";
+		startseq = "";
+	} else {
+		# Lost a message or some such, reset.
+		startseq = "";
+		nlost++;
+	}
+}
+
+$8 == "done" && seqtask[$7] != $1 {
+	piggybackcnt[$1]++;
+}
+
+END {
+	newNR = asort(gptimes);
+	if (newNR <= 0) {
+		print "No ftrace records found???"
+		exit 10;
+	}
+	pct50 = int(newNR * 50 / 100);
+	if (pct50 < 1)
+		pct50 = 1;
+	pct90 = int(newNR * 90 / 100);
+	if (pct90 < 1)
+		pct90 = 1;
+	pct99 = int(newNR * 99 / 100);
+	if (pct99 < 1)
+		pct99 = 1;
+	div = 10 ** int(log(gptimes[pct90]) / log(10) + .5) / 100;
+	print "Histogram bucket size: " div;
+	last = gptimes[1] - 10;
+	count = 0;
+	for (i = 1; i <= newNR; i++) {
+		current = div * int(gptimes[i] / div);
+		if (last == current) {
+			count++;
+		} else {
+			if (count > 0)
+				print last, count;
+			count = 1;
+			last = current;
+		}
+	}
+	if (count > 0)
+		print last, count;
+	print "Distribution of grace periods across tasks:";
+	for (i in gptaskcnt) {
+		print "\t" i, gptaskcnt[i];
+		nbatches += gptaskcnt[i];
+	}
+	ngps = nbatches;
+	print "Distribution of piggybacking across tasks:";
+	for (i in piggybackcnt) {
+		print "\t" i, piggybackcnt[i];
+		ngps += piggybackcnt[i];
+	}
+	print "Average grace-period duration: " sum / newNR " microseconds";
+	print "Minimum grace-period duration: " gptimes[1];
+	print "50th percentile grace-period duration: " gptimes[pct50];
+	print "90th percentile grace-period duration: " gptimes[pct90];
+	print "99th percentile grace-period duration: " gptimes[pct99];
+	print "Maximum grace-period duration: " gptimes[newNR];
+	print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches " Lost: " nlost + 0;
+	print "Computed from ftrace data.";
+}'
+exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
new file mode 100755
index 000000000000..f683e424ddd5
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-rcuscale.sh
@@ -0,0 +1,89 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Analyze a given results directory for rcuscale scalability measurements.
+#
+# Usage: kvm-recheck-rcuscale.sh resdir
+#
+# Copyright (C) IBM Corporation, 2016
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+i="$1"
+if test -d "$i" -a -r "$i"
+then
+	:
+else
+	echo Unreadable results directory: $i
+	exit 1
+fi
+PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
+. functions.sh
+
+if kvm-recheck-rcuscale-ftrace.sh $i
+then
+	# ftrace data was successfully analyzed, call it good!
+	exit 0
+fi
+
+configfile=`echo $i | sed -e 's/^.*\///'`
+
+sed -e 's/^\[[^]]*]//' < $i/console.log |
+awk '
+/-scale: .* gps: .* batches:/ {
+	ngps = $9;
+	nbatches = 1;
+}
+
+/-scale: .*writer-duration/ {
+	gptimes[++n] = $5 / 1000.;
+	sum += $5 / 1000.;
+}
+
+/rcu_scale: Grace-period kthread CPU time/ {
+	cputime = $6;
+}
+
+END {
+	newNR = asort(gptimes);
+	if (newNR <= 0) {
+		print "No rcuscale records found???"
+		exit;
+	}
+	pct50 = int(newNR * 50 / 100);
+	if (pct50 < 1)
+		pct50 = 1;
+	pct90 = int(newNR * 90 / 100);
+	if (pct90 < 1)
+		pct90 = 1;
+	pct99 = int(newNR * 99 / 100);
+	if (pct99 < 1)
+		pct99 = 1;
+	div = 10 ** int(log(gptimes[pct90]) / log(10) + .5) / 100;
+	print "Histogram bucket size: " div;
+	last = gptimes[1] - 10;
+	count = 0;
+	for (i = 1; i <= newNR; i++) {
+		current = div * int(gptimes[i] / div);
+		if (last == current) {
+			count++;
+		} else {
+			if (count > 0)
+				print last, count;
+			count = 1;
+			last = current;
+		}
+	}
+	if (count > 0)
+		print last, count;
+	print "Average grace-period duration: " sum / newNR " microseconds";
+	print "Minimum grace-period duration: " gptimes[1];
+	print "50th percentile grace-period duration: " gptimes[pct50];
+	print "90th percentile grace-period duration: " gptimes[pct90];
+	print "99th percentile grace-period duration: " gptimes[pct99];
+	print "Maximum grace-period duration: " gptimes[newNR];
+	if (cputime != "")
+		cpustr = " CPU: " cputime;
+	print "Grace periods: " ngps + 0 " Batches: " nbatches + 0 " Ratio: " ngps / nbatches cpustr;
+	print "Computed from rcuscale printk output.";
+}'
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-refscale.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-refscale.sh
new file mode 100755
index 000000000000..35a463dddffe
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-refscale.sh
@@ -0,0 +1,71 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Analyze a given results directory for refscale performance measurements.
+#
+# Usage: kvm-recheck-refscale.sh resdir
+#
+# Copyright (C) IBM Corporation, 2016
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+i="$1"
+if test -d "$i" -a -r "$i"
+then
+	:
+else
+	echo Unreadable results directory: $i
+	exit 1
+fi
+PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
+. functions.sh
+
+configfile=`echo $i | sed -e 's/^.*\///'`
+
+sed -e 's/^\[[^]]*]//' < $i/console.log | tr -d '\015' |
+awk -v configfile="$configfile" '
+/^[ 	]*Runs	Time\(ns\) *$/ {
+	if (dataphase + 0 == 0) {
+		dataphase = 1;
+		# print configfile, $0;
+	}
+	next;
+}
+
+/[^ 	]*[0-9][0-9]*	[0-9][0-9]*\.[0-9][0-9]*$/ {
+	if (dataphase == 1) {
+		# print $0;
+		readertimes[++n] = $2;
+		sum += $2;
+	}
+	next;
+}
+
+{
+	if (dataphase == 1)
+		dataphase == 2;
+	next;
+}
+
+END {
+	print configfile " results:";
+	newNR = asort(readertimes);
+	if (newNR <= 0) {
+		print "No refscale records found???"
+		exit;
+	}
+	medianidx = int(newNR / 2);
+	if (newNR == medianidx * 2)
+		medianvalue = (readertimes[medianidx - 1] + readertimes[medianidx]) / 2;
+	else
+		medianvalue = readertimes[medianidx];
+	points = "Points:";
+	for (i = 1; i <= newNR; i++)
+		points = points " " readertimes[i];
+	print points;
+	print "Average reader duration: " sum / newNR " nanoseconds";
+	print "Minimum reader duration: " readertimes[1];
+	print "Median reader duration: " medianvalue;
+	print "Maximum reader duration: " readertimes[newNR];
+	print "Computed from refscale printk output.";
+}'
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck-scf.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck-scf.sh
new file mode 100755
index 000000000000..3afa5c6eda4f
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck-scf.sh
@@ -0,0 +1,38 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Analyze a given results directory for rcutorture progress.
+#
+# Usage: kvm-recheck-rcu.sh resdir
+#
+# Copyright (C) Facebook, 2020
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+i="$1"
+if test -d "$i" -a -r "$i"
+then
+	:
+else
+	echo Unreadable results directory: $i
+	exit 1
+fi
+. functions.sh
+
+configfile=`echo $i | sed -e 's/^.*\///'`
+nscfs="`grep 'scf_invoked_count ver:' $i/console.log 2> /dev/null | tail -1 | sed -e 's/^.* scf_invoked_count ver: //' -e 's/ .*$//' | tr -d '\015'`"
+if test -z "$nscfs"
+then
+	echo "$configfile ------- "
+else
+	dur="`grep -v '^#' $i/qemu-cmd | sed -e 's/^.* scftorture.shutdown_secs=//' -e 's/ .*$//' 2> /dev/null`"
+	if test -z "$dur"
+	then
+		rate=""
+	else
+		nscfss=`awk -v nscfs=$nscfs -v dur=$dur '
+			BEGIN { print nscfs / dur }' < /dev/null`
+		rate=" ($nscfss/s)"
+	fi
+	echo "${configfile} ------- ${nscfs} SCF handler invocations$rate"
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
index d86bdd6b6cc2..de65d77b47ff 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-recheck.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Given the results directories for previous KVM-based torture runs,
 # check the build and console output for errors.  Given a directory
@@ -6,26 +7,19 @@
 #
 # Usage: kvm-recheck.sh resdir ...
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
+# Returns status reflecting the success or not of the last run specified.
 #
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+T="`mktemp ${TMPDIR-/tmp}/kvm-recheck.sh.XXXXXX`"
+trap 'rm -f $T' 0 2
+
+configerrors=0
 
 PATH=`pwd`/tools/testing/selftests/rcutorture/bin:$PATH; export PATH
-. tools/testing/selftests/rcutorture/bin/functions.sh
+. functions.sh
 for rd in "$@"
 do
 	firsttime=1
@@ -38,36 +32,107 @@ do
 			resdir=`echo $i | sed -e 's,/$,,' -e 's,/[^/]*$,,'`
 			head -1 $resdir/log
 		fi
-		TORTURE_SUITE="`cat $i/../TORTURE_SUITE`"
-		kvm-recheck-${TORTURE_SUITE}.sh $i
-		if test -f "$i/console.log"
+		TORTURE_SUITE="`cat $i/../torture_suite`" ; export TORTURE_SUITE
+		configfile=`echo $i | sed -e 's,^.*/,,'`
+		rm -f $i/console.log.*.diags $i/ConfigFragment.diags
+		case "${TORTURE_SUITE}" in
+		X*)
+			;;
+		*)
+			kvm-recheck-${TORTURE_SUITE}.sh $i
+		esac
+		if test -f "$i/qemu-retval" && test "`cat $i/qemu-retval`" -ne 0 && test "`cat $i/qemu-retval`" -ne 137
+		then
+			echo QEMU error, output:
+			cat $i/qemu-output
+		elif test -f "$i/console.log"
 		then
-			configcheck.sh $i/.config $i/ConfigFragment
+			if test -f "$i/qemu-retval" && test "`cat $i/qemu-retval`" -eq 137
+			then
+				echo QEMU killed
+			fi
+			configcheck.sh $i/.config $i/ConfigFragment > $i/ConfigFragment.diags 2>&1
+			if grep -q '^CONFIG_KCSAN=y$' $i/ConfigFragment.input
+			then
+				# KCSAN forces a number of Kconfig options, so remove
+				# complaints about those Kconfig options in KCSAN runs.
+				mv $i/ConfigFragment.diags $i/ConfigFragment.diags.kcsan
+				grep -v -E 'CONFIG_PROVE_RCU|CONFIG_PREEMPT_COUNT' $i/ConfigFragment.diags.kcsan > $i/ConfigFragment.diags
+			fi
+			if test -s $i/ConfigFragment.diags
+			then
+				cat $i/ConfigFragment.diags
+				configerrors=$((configerrors+1))
+			else
+				rm $i/ConfigFragment.diags
+			fi
 			if test -r $i/Make.oldconfig.err
 			then
 				cat $i/Make.oldconfig.err
 			fi
 			parse-build.sh $i/Make.out $configfile
-			parse-torture.sh $i/console.log $configfile
 			parse-console.sh $i/console.log $configfile
 			if test -r $i/Warnings
 			then
 				cat $i/Warnings
 			fi
 		else
-			if test -f "$i/qemu-cmd"
-			then
-				print_bug qemu failed
-				echo "   $i"
-			elif test -f "$i/buildonly"
+			if test -f "$i/buildonly"
 			then
 				echo Build-only run, no boot/test
-				configcheck.sh $i/.config $i/ConfigFragment
+				configcheck.sh $i/.config $i/ConfigFragment > $i/ConfigFragment.diags 2>&1
+				if test -s $i/ConfigFragment.diags
+				then
+					cat $i/ConfigFragment.diags
+					configerrors=$((configerrors+1))
+				else
+					rm $i/ConfigFragment.diags
+				fi
 				parse-build.sh $i/Make.out $configfile
+			elif test -f "$i/qemu-cmd"
+			then
+				print_bug qemu failed
+				echo "   $i"
 			else
 				print_bug Build failed
 				echo "   $i"
 			fi
 		fi
 	done
+	if test -f "$rd/kcsan.sum"
+	then
+		if ! test -f $i/ConfigFragment.diags
+		then
+			:
+		elif grep -q CONFIG_KCSAN=y $i/ConfigFragment.diags
+		then
+			echo "Compiler or architecture does not support KCSAN!"
+			echo Did you forget to switch your compiler with '--kmake-arg CC=<cc-that-supports-kcsan>'?
+		elif test -s "$rd/kcsan.sum"
+		then
+			echo KCSAN summary in $rd/kcsan.sum
+		else
+			echo Clean KCSAN run in $rd
+		fi
+	fi
 done
+
+if test "$configerrors" -gt 0
+then
+	echo $configerrors runs with .config errors.
+	ret=1
+fi
+EDITOR=echo kvm-find-errors.sh "${@: -1}" > $T 2>&1
+builderrors="`tr ' ' '\012' < $T | grep -c '/Make.out.diags'`"
+if test "$builderrors" -gt 0
+then
+	echo $builderrors runs with build errors.
+	ret=2
+fi
+runerrors="`tr ' ' '\012' < $T | grep -c '/console.log.diags'`"
+if test "$runerrors" -gt 0
+then
+	echo $runerrors runs with runtime errors.
+	ret=3
+fi
+exit $ret
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh
new file mode 100755
index 000000000000..014ce68260d7
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-remote-noreap.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Periodically scan a directory tree to prevent files from being reaped
+# by systemd and friends on long runs.
+#
+# Usage: kvm-remote-noreap.sh pathname
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+pathname="$1"
+if test "$pathname" = ""
+then
+	echo Usage: kvm-remote-noreap.sh pathname
+	exit 1
+fi
+if ! test -d "$pathname"
+then
+	echo  Usage: kvm-remote-noreap.sh pathname
+	echo "       pathname must be a directory."
+	exit 2
+fi
+
+while test -d "$pathname"
+do
+	find "$pathname" -type f -exec touch -c {} \; > /dev/null 2>&1
+	sleep 30
+done
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-remote.sh b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
new file mode 100755
index 000000000000..48a8052d5dae
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-remote.sh
@@ -0,0 +1,297 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Run a series of tests on remote systems under KVM.
+#
+# Usage: kvm-remote.sh "systems" [ <kvm.sh args> ]
+#	 kvm-remote.sh "systems" /path/to/old/run [ <kvm-again.sh args> ]
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+scriptname=$0
+args="$*"
+
+if ! test -d tools/testing/selftests/rcutorture/bin
+then
+	echo $scriptname must be run from top-level directory of kernel source tree.
+	exit 1
+fi
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+starttime="`get_starttime`"
+
+systems="$1"
+if test -z "$systems"
+then
+	echo $scriptname: Empty list of systems will go nowhere good, giving up.
+	exit 1
+fi
+shift
+
+# Pathnames:
+# T:	  /tmp/kvm-remote.sh.NNNNNN where "NNNNNN" is set by mktemp
+# resdir: /tmp/kvm-remote.sh.NNNNNN/res
+# rundir: /tmp/kvm-remote.sh.NNNNNN/res/$ds ("-remote" suffix)
+# oldrun: `pwd`/tools/testing/.../res/$otherds
+#
+# Pathname segments:
+# TD:	  kvm-remote.sh.NNNNNN
+# ds:	  yyyy.mm.dd-hh.mm.ss-remote
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-remote.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+TD="`basename "$T"`"
+
+resdir="$T/res"
+ds=`date +%Y.%m.%d-%H.%M.%S`-remote
+rundir=$resdir/$ds
+echo Results directory: $rundir
+echo $scriptname $args
+if echo $1 | grep -q '^--'
+then
+	# Fresh build.  Create a datestamp unless the caller supplied one.
+	datestamp="`echo "$@" | awk -v ds="$ds" '{
+		for (i = 1; i < NF; i++) {
+			if ($i == "--datestamp") {
+				ds = "";
+				break;
+			}
+		}
+		if (ds != "")
+			print "--datestamp " ds;
+	}'`"
+	kvm.sh --remote "$@" $datestamp --buildonly > $T/kvm.sh.out 2>&1
+	ret=$?
+	if test "$ret" -ne 0
+	then
+		echo $scriptname: kvm.sh failed exit code $?
+		cat $T/kvm.sh.out
+		exit 2
+	fi
+	oldrun="`grep -m 1 "^Results directory: " $T/kvm.sh.out | awk '{ print $3 }'`"
+	touch "$oldrun/remote-log"
+	echo $scriptname $args >> "$oldrun/remote-log"
+	echo | tee -a "$oldrun/remote-log"
+	echo " ----" kvm.sh output: "(`date`)" | tee -a "$oldrun/remote-log"
+	cat $T/kvm.sh.out | tee -a "$oldrun/remote-log"
+	# We are going to run this, so remove the buildonly files.
+	rm -f "$oldrun"/*/buildonly
+	kvm-again.sh $oldrun --dryrun --remote --rundir "$rundir" > $T/kvm-again.sh.out 2>&1
+	ret=$?
+	if test "$ret" -ne 0
+	then
+		echo $scriptname: kvm-again.sh failed exit code $? | tee -a "$oldrun/remote-log"
+		cat $T/kvm-again.sh.out | tee -a "$oldrun/remote-log"
+		exit 2
+	fi
+else
+	# Re-use old run.
+	oldrun="$1"
+	if ! echo $oldrun | grep -q '^/'
+	then
+		oldrun="`pwd`/$oldrun"
+	fi
+	shift
+	touch "$oldrun/remote-log"
+	echo $scriptname $args >> "$oldrun/remote-log"
+	kvm-again.sh "$oldrun" "$@" --dryrun --remote --rundir "$rundir" > $T/kvm-again.sh.out 2>&1
+	ret=$?
+	if test "$ret" -ne 0
+	then
+		echo $scriptname: kvm-again.sh failed exit code $? | tee -a "$oldrun/remote-log"
+		cat $T/kvm-again.sh.out | tee -a "$oldrun/remote-log"
+		exit 2
+	fi
+	cp -a "$rundir" "$RCUTORTURE/res/"
+	oldrun="$RCUTORTURE/res/$ds"
+fi
+echo | tee -a "$oldrun/remote-log"
+echo " ----" kvm-again.sh output: "(`date`)" | tee -a "$oldrun/remote-log"
+cat $T/kvm-again.sh.out
+echo | tee -a "$oldrun/remote-log"
+echo Remote run directory: $rundir | tee -a "$oldrun/remote-log"
+echo Local build-side run directory: $oldrun | tee -a "$oldrun/remote-log"
+
+# Create the kvm-remote-N.sh scripts in the bin directory.
+awk < "$rundir"/scenarios -v dest="$T/bin" -v rundir="$rundir" '
+{
+	n = $1;
+	sub(/\./, "", n);
+	fn = dest "/kvm-remote-" n ".sh"
+	print "kvm-remote-noreap.sh " rundir " &" > fn;
+	scenarios = "";
+	for (i = 2; i <= NF; i++)
+		scenarios = scenarios " " $i;
+	print "kvm-test-1-run-batch.sh" scenarios >> fn;
+	print "sync" >> fn;
+	print "rm " rundir "/remote.run" >> fn;
+}'
+chmod +x $T/bin/kvm-remote-*.sh
+( cd "`dirname $T`"; tar -chzf $T/binres.tgz "$TD/bin" "$TD/res" )
+
+# Check first to avoid the need for cleanup for system-name typos
+for i in $systems
+do
+	ssh -o BatchMode=yes $i getconf _NPROCESSORS_ONLN > $T/ssh.stdout 2> $T/ssh.stderr
+	ret=$?
+	if test "$ret" -ne 0
+	then
+		echo "System $i unreachable ($ret), giving up." | tee -a "$oldrun/remote-log"
+		echo ' --- ssh stdout: vvv' | tee -a "$oldrun/remote-log"
+		cat $T/ssh.stdout | tee -a "$oldrun/remote-log"
+		echo ' --- ssh stdout: ^^^' | tee -a "$oldrun/remote-log"
+		echo ' --- ssh stderr: vvv' | tee -a "$oldrun/remote-log"
+		cat $T/ssh.stderr | tee -a "$oldrun/remote-log"
+		echo ' --- ssh stderr: ^^^' | tee -a "$oldrun/remote-log"
+		exit 4
+	fi
+	echo $i: `cat $T/ssh.stdout` CPUs " " `date` | tee -a "$oldrun/remote-log"
+done
+
+# Download and expand the tarball on all systems.
+echo Build-products tarball: `du -h $T/binres.tgz` | tee -a "$oldrun/remote-log"
+for i in $systems
+do
+	echo Downloading tarball to $i `date` | tee -a "$oldrun/remote-log"
+	cat $T/binres.tgz | ssh -o BatchMode=yes $i "cd /tmp; tar -xzf -"
+	ret=$?
+	tries=0
+	while test "$ret" -ne 0
+	do
+		echo Unable to download $T/binres.tgz to system $i, waiting and then retrying.  $tries prior retries. | tee -a "$oldrun/remote-log"
+		sleep 60
+		cat $T/binres.tgz | ssh -o BatchMode=yes $i "cd /tmp; tar -xzf -"
+		ret=$?
+		if test "$ret" -ne 0
+		then
+			if test "$tries" > 5
+			then
+				echo Unable to download $T/binres.tgz to system $i, giving up. | tee -a "$oldrun/remote-log"
+				exit 10
+			fi
+		fi
+		tries=$((tries+1))
+	done
+done
+
+# Function to check for presence of a file on the specified system.
+# Complain if the system cannot be reached, and retry after a wait.
+# Currently just waits 15 minutes if a machine disappears.
+#
+# Usage: checkremotefile system pathname
+checkremotefile () {
+	local nsshfails=0
+	local ret
+	local sleeptime=60
+
+	while :
+	do
+		ssh -o BatchMode=yes $1 "test -f \"$2\""
+		ret=$?
+		if test "$ret" -eq 255
+		then
+			echo " ---" ssh failure to $1 checking for file $2, retry after $sleeptime seconds. `date` | tee -a "$oldrun/remote-log"
+			nsshfails=$((nsshfails+1))
+			if ((nsshfails > 15))
+			then
+				return 255
+			fi
+		elif test "$ret" -eq 0
+		then
+			return 0
+		elif test "$ret" -eq 1
+		then
+			echo " ---" File \"$2\" not found: ssh $1 test -f \"$2\" | tee -a "$oldrun/remote-log"
+			return 1
+		else
+			echo " ---" Exit code $ret: ssh $1 test -f \"$2\", retry after $sleeptime seconds. `date` | tee -a "$oldrun/remote-log"
+			return $ret
+		fi
+		sleep $sleeptime
+	done
+}
+
+# Function to start batches on idle remote $systems
+#
+# Usage: startbatches curbatch nbatches
+#
+# Batches are numbered starting at 1.  Returns the next batch to start.
+# Be careful to redirect all debug output to FD 2 (stderr).
+startbatches () {
+	local curbatch="$1"
+	local nbatches="$2"
+	local ret
+
+	# Each pass through the following loop examines one system.
+	for i in $systems
+	do
+		if test "$curbatch" -gt "$nbatches"
+		then
+			echo $((nbatches + 1))
+			return 0
+		fi
+		if checkremotefile "$i" "$resdir/$ds/remote.run" 1>&2
+		then
+			continue # System still running last test, skip.
+		fi
+		ssh -o BatchMode=yes "$i" "cd \"$resdir/$ds\"; touch remote.run; PATH=\"$T/bin:$PATH\" nohup kvm-remote-$curbatch.sh > kvm-remote-$curbatch.sh.out 2>&1 &" 1>&2
+		ret=$?
+		if test "$ret" -ne 0
+		then
+			echo ssh $i failed: exitcode $ret 1>&2
+			exit 11
+		fi
+		echo " ----" System $i Batch `head -n $curbatch < "$rundir"/scenarios | tail -1` `date` 1>&2
+		curbatch=$((curbatch + 1))
+	done
+	echo $curbatch
+}
+
+# Launch all the scenarios.
+nbatches="`wc -l "$rundir"/scenarios | awk '{ print $1 }'`"
+curbatch=1
+while test "$curbatch" -le "$nbatches"
+do
+	startbatches $curbatch $nbatches > $T/curbatch 2> $T/startbatches.stderr
+	curbatch="`cat $T/curbatch`"
+	if test -s "$T/startbatches.stderr"
+	then
+		cat "$T/startbatches.stderr" | tee -a "$oldrun/remote-log"
+	fi
+	if test "$curbatch" -le "$nbatches"
+	then
+		sleep 30
+	fi
+done
+echo All batches started. `date` | tee -a "$oldrun/remote-log"
+
+# Wait for all remaining scenarios to complete and collect results.
+for i in $systems
+do
+	echo " ---" Waiting for $i `date` | tee -a "$oldrun/remote-log"
+	while :
+	do
+		checkremotefile "$i" "$resdir/$ds/remote.run"
+		ret=$?
+		if test "$ret" -eq 1
+		then
+			echo " ---" Collecting results from $i `date` | tee -a "$oldrun/remote-log"
+			( cd "$oldrun"; ssh -o BatchMode=yes $i "cd $rundir; tar -czf - kvm-remote-*.sh.out */console.log */kvm-test-1-run*.sh.out */qemu[_-]pid */qemu-retval */qemu-affinity; rm -rf $T > /dev/null 2>&1" | tar -xzf - )
+			break;
+		fi
+		if test "$ret" -eq 255
+		then
+			echo System $i persistent ssh failure, lost results `date` | tee -a "$oldrun/remote-log"
+			break;
+		fi
+		sleep 30
+	done
+done
+
+( kvm-end-run-stats.sh "$oldrun" "$starttime"; echo $? > $T/exitcode ) | tee -a "$oldrun/remote-log"
+exit "`cat $T/exitcode`"
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-series.sh b/tools/testing/selftests/rcutorture/bin/kvm-series.sh
new file mode 100755
index 000000000000..2ff905a1853b
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-series.sh
@@ -0,0 +1,116 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Usage: kvm-series.sh config-list commit-id-list [ kvm.sh parameters ]
+#
+# Tests the specified list of unadorned configs ("TREE01 SRCU-P" but not
+# "CFLIST" or "3*TRACE01") and an indication of a set of commits to test,
+# then runs each commit through the specified list of commits using kvm.sh.
+# The runs are grouped into a -series/config/commit directory tree.
+# Each run defaults to a duration of one minute.
+#
+# Run in top-level Linux source directory.  Please note that this is in
+# no way a replacement for "git bisect"!!!
+#
+# This script is intended to replace kvm-check-branches.sh by providing
+# ease of use and faster execution.
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-series.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+scriptname=$0
+args="$*"
+
+config_list="${1}"
+if test -z "${config_list}"
+then
+	echo "$0: Need a quoted list of --config arguments for first argument."
+	exit 1
+fi
+if test -z "${config_list}" || echo "${config_list}" | grep -q '\*'
+then
+	echo "$0: Repetition ('*') not allowed in config list."
+	exit 1
+fi
+
+commit_list="${2}"
+if test -z "${commit_list}"
+then
+	echo "$0: Need a list of commits (e.g., HEAD^^^..) for second argument."
+	exit 2
+fi
+git log --pretty=format:"%h" "${commit_list}" > $T/commits
+ret=$?
+if test "${ret}" -ne 0
+then
+	echo "$0: Invalid commit list ('${commit_list}')."
+	exit 2
+fi
+sha1_list=`cat $T/commits`
+
+shift
+shift
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+ret=0
+nfail=0
+nsuccess=0
+faillist=
+successlist=
+cursha1="`git rev-parse --abbrev-ref HEAD`"
+ds="`date +%Y.%m.%d-%H.%M.%S`-series"
+startdate="`date`"
+starttime="`get_starttime`"
+
+echo " --- " $scriptname $args | tee -a $T/log
+echo " --- Results directory: " $ds | tee -a $T/log
+
+for config in ${config_list}
+do
+	sha_n=0
+	for sha in ${sha1_list}
+	do
+		sha1=${sha_n}.${sha} # Enable "sort -k1nr" to list commits in order.
+		echo Starting ${config}/${sha1} at `date` | tee -a $T/log
+		git checkout "${sha}"
+		time tools/testing/selftests/rcutorture/bin/kvm.sh --configs "$config" --datestamp "$ds/${config}/${sha1}" --duration 1 "$@"
+		curret=$?
+		if test "${curret}" -ne 0
+		then
+			nfail=$((nfail+1))
+			faillist="$faillist ${config}/${sha1}(${curret})"
+		else
+			nsuccess=$((nsuccess+1))
+			successlist="$successlist ${config}/${sha1}"
+			# Successful run, so remove large files.
+			rm -f ${RCUTORTURE}/$ds/${config}/${sha1}/{vmlinux,bzImage,System.map,Module.symvers}
+		fi
+		if test "${ret}" -eq 0
+		then
+			ret=${curret}
+		fi
+		sha_n=$((sha_n+1))
+	done
+done
+git checkout "${cursha1}"
+
+echo ${nsuccess} SUCCESSES: | tee -a $T/log
+echo ${successlist} | fmt | tee -a $T/log
+echo | tee -a $T/log
+echo ${nfail} FAILURES: | tee -a $T/log
+echo ${faillist} | fmt | tee -a $T/log
+if test -n "${faillist}"
+then
+	echo | tee -a $T/log
+	echo Failures across commits: | tee -a $T/log
+	echo ${faillist} | tr ' ' '\012' | sed -e 's,^[^/]*/,,' -e 's/([0-9]*)//' |
+		sort | uniq -c | sort -k2n | tee -a $T/log
+fi
+echo Started at $startdate, ended at `date`, duration `get_starttime_duration $starttime`. | tee -a $T/log
+echo Summary: Successes: ${nsuccess} Failures: ${nfail} | tee -a $T/log
+cp $T/log tools/testing/selftests/rcutorture/res/${ds}
+
+exit "${ret}"
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
new file mode 100755
index 000000000000..f87046b702d8
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
@@ -0,0 +1,93 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Carry out a kvm-based run for the specified batch of scenarios, which
+# might have been built by --build-only kvm.sh run.
+#
+# Usage: kvm-test-1-run-batch.sh SCENARIO [ SCENARIO ... ]
+#
+# Each SCENARIO is the name of a directory in the current directory
+#	containing a ready-to-run qemu-cmd file.
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+echo ---- Running batch $*
+# Check arguments
+runfiles=
+for i in "$@"
+do
+	if ! echo $i | grep -q '^[^/.a-z]\+\(\.[0-9]\+\)\?$'
+	then
+		echo Bad scenario name: \"$i\" 1>&2
+		exit 1
+	fi
+	if ! test -d "$i"
+	then
+		echo Scenario name not a directory: \"$i\" 1>&2
+		exit 2
+	fi
+	if ! test -f "$i/qemu-cmd"
+	then
+		echo Scenario lacks a command file: \"$i/qemu-cmd\" 1>&2
+		exit 3
+	fi
+	rm -f $i/build.*
+	touch $i/build.run
+	runfiles="$runfiles $i/build.run"
+done
+
+# Extract settings from the qemu-cmd file.
+grep '^#' $1/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings
+. $T/qemu-cmd-settings
+
+# Start up jitter, start each scenario, wait, end jitter.
+echo ---- System running test: `uname -a`
+echo ---- Starting kernels. `date` | tee -a log
+$TORTURE_JITTER_START
+kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk
+for i in "$@"
+do
+	echo ---- System running test: `uname -a` > $i/kvm-test-1-run-qemu.sh.out
+	echo > $i/kvm-test-1-run-qemu.sh.out
+	export TORTURE_AFFINITY=
+	kvm-get-cpus-script.sh $T/cpuarray.awk $T/cpubatches.awk $T/cpustate
+	if test -z "${TORTURE_NO_AFFINITY}"
+	then
+		cat << '		___EOF___' >> $T/cpubatches.awk
+		END {
+			affinitylist = "";
+			if (!gotcpus()) {
+				print "echo No CPU-affinity information, so no taskset command.";
+			} else if (cpu_count !~ /^[0-9][0-9]*$/) {
+				print "echo " scenario ": Bogus number of CPUs (old qemu-cmd?), so no taskset command.";
+			} else {
+				affinitylist = nextcpus(cpu_count);
+				if (!(affinitylist ~ /^[0-9,-][0-9,-]*$/))
+					print "echo " scenario ": Bogus CPU-affinity information, so no taskset command.";
+				else if (!dumpcpustate())
+					print "echo " scenario ": Could not dump state, so no taskset command.";
+				else
+					print "export TORTURE_AFFINITY=" affinitylist;
+			}
+		}
+		___EOF___
+		cpu_count="`grep '# TORTURE_CPU_COUNT=' $i/qemu-cmd | sed -e 's/^.*=//'`"
+		affinity_export="`awk -f $T/cpubatches.awk -v cpu_count="$cpu_count" -v scenario=$i < /dev/null`"
+		$affinity_export
+	fi
+	kvm-test-1-run-qemu.sh $i >> $i/kvm-test-1-run-qemu.sh.out 2>&1 &
+done
+for i in $runfiles
+do
+	while ls $i > /dev/null 2>&1
+	do
+		:
+	done
+done
+echo ---- All kernel runs complete. `date` | tee -a log
+$TORTURE_JITTER_STOP
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
new file mode 100755
index 000000000000..76f24cd5825b
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run-qemu.sh
@@ -0,0 +1,184 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Carry out a kvm-based run for the specified qemu-cmd file, which might
+# have been generated by --build-only kvm.sh run.
+#
+# Usage: kvm-test-1-run-qemu.sh qemu-cmd-dir
+#
+# qemu-cmd-dir provides the directory containing qemu-cmd file.
+#	This is assumed to be of the form prefix/ds/scenario, where
+#	"ds" is the top-level date-stamped directory and "scenario"
+#	is the scenario name.  Any required adjustments to this file
+#	must have been made by the caller.  The shell-command comments
+#	at the end of the qemu-cmd file are not optional.
+#
+# Copyright (C) 2021 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run-qemu.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+resdir="$1"
+if ! test -d "$resdir"
+then
+	echo $0: Nonexistent directory: $resdir
+	exit 1
+fi
+if ! test -f "$resdir/qemu-cmd"
+then
+	echo $0: Nonexistent qemu-cmd file: $resdir/qemu-cmd
+	exit 1
+fi
+
+echo ' ---' `date`: Starting kernel, PID $$
+
+# Obtain settings from the qemu-cmd file.
+grep '^#' $resdir/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings
+. $T/qemu-cmd-settings
+
+# Decorate qemu-cmd with affinity, redirection, backgrounding, and PID capture
+taskset_command=
+if test -n "$TORTURE_AFFINITY"
+then
+	taskset_command="taskset -c $TORTURE_AFFINITY "
+fi
+sed -e 's/^[^#].*$/'"$taskset_command"'& 2>\&1 \&/' < $resdir/qemu-cmd > $T/qemu-cmd
+echo 'qemu_pid=$!' >> $T/qemu-cmd
+echo 'echo $qemu_pid > $resdir/qemu-pid' >> $T/qemu-cmd
+echo 'taskset -c -p $qemu_pid > $resdir/qemu-affinity' >> $T/qemu-cmd
+
+# In case qemu refuses to run...
+echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
+
+# Attempt to run qemu
+kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
+( . $T/qemu-cmd; wait `cat  $resdir/qemu-pid`; echo $? > $resdir/qemu-retval ) &
+commandcompleted=0
+if test -z "$TORTURE_KCONFIG_GDB_ARG"
+then
+	sleep 10 # Give qemu's pid a chance to reach the file
+	if test -s "$resdir/qemu-pid"
+	then
+		qemu_pid=`cat "$resdir/qemu-pid"`
+		echo Monitoring qemu job at pid $qemu_pid `date`
+	else
+		qemu_pid=""
+		echo Monitoring qemu job at yet-as-unknown pid `date`
+	fi
+fi
+if test -n "$TORTURE_KCONFIG_GDB_ARG"
+then
+	base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
+	if ! test -f $base_resdir/vmlinux
+	then
+		base_resdir="`cat re-run`/$resdir"
+		if ! test -f $base_resdir/vmlinux
+		then
+			base_resdir=/path/to
+		fi
+	fi
+	echo Waiting for you to attach a debug session, for example: > /dev/tty
+	echo "    gdb $base_resdir/vmlinux" > /dev/tty
+	echo 'After symbols load and the "(gdb)" prompt appears:' > /dev/tty
+	echo "    target remote :1234" > /dev/tty
+	echo "    continue" > /dev/tty
+	kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
+fi
+while :
+do
+	if test -z "$qemu_pid" && test -s "$resdir/qemu-pid"
+	then
+		qemu_pid=`cat "$resdir/qemu-pid"`
+	fi
+	kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
+	if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
+	then
+		if test -n "$TORTURE_KCONFIG_GDB_ARG"
+		then
+			:
+		elif test $kruntime -ge $seconds || test -f "$resdir/../STOP.1"
+		then
+			break;
+		fi
+		sleep 1
+	else
+		commandcompleted=1
+		if test $kruntime -lt $seconds
+		then
+			echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
+			grep "^(qemu) qemu:" $resdir/kvm-test-1-run*.sh.out >> $resdir/Warnings 2>&1
+			killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
+			if test -n "$killpid"
+			then
+				echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
+				ps -fp $killpid >> $resdir/Warnings 2>&1
+			fi
+		else
+			echo ' ---' `date`: "Kernel done"
+		fi
+		break
+	fi
+done
+if test -z "$qemu_pid" && test -s "$resdir/qemu-pid"
+then
+	qemu_pid=`cat "$resdir/qemu-pid"`
+fi
+if test $commandcompleted -eq 0 && test -n "$qemu_pid"
+then
+	if ! test -f "$resdir/../STOP.1"
+	then
+		echo Grace period for qemu job at pid $qemu_pid `date`
+	fi
+	oldline="`tail $resdir/console.log`"
+	while :
+	do
+		if test -f "$resdir/../STOP.1"
+		then
+			echo "PID $qemu_pid killed due to run STOP.1 request `date`" >> $resdir/Warnings 2>&1
+			kill -KILL $qemu_pid
+			break
+		fi
+		kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
+		if kill -0 $qemu_pid > /dev/null 2>&1
+		then
+			:
+		else
+			break
+		fi
+		must_continue=no
+		newline="`tail $resdir/console.log`"
+		if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
+		then
+			must_continue=yes
+		fi
+		last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
+		if test -z "$last_ts"
+		then
+			last_ts=0
+		fi
+		if test "$newline" != "$oldline" && test "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE)) && test "$last_ts" -gt "$TORTURE_SHUTDOWN_GRACE"
+		then
+			must_continue=yes
+			if test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
+			then
+				echo Continuing at console.log time $last_ts \"`tail -n 1 $resdir/console.log`\" `date`
+			fi
+		fi
+		if test $must_continue = no && test $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
+		then
+			echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds `date`" >> $resdir/Warnings 2>&1
+			kill -KILL $qemu_pid
+			break
+		fi
+		oldline=$newline
+		sleep 10
+	done
+elif test -z "$qemu_pid"
+then
+	echo Unknown PID, cannot kill qemu command
+fi
+
+# Tell the script that this run is done.
+rm -f $resdir/build.run
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 5236e073919d..957800c9ffba 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Run a kvm-based test of the specified tree on the specified configs.
 # Fully automated run and error checking, no graphics console.
@@ -6,161 +7,206 @@
 # Execute this in the source tree.  Do not run it as a background task
 # because qemu does not seem to like that much.
 #
-# Usage: kvm-test-1-run.sh config builddir resdir minutes qemu-args boot_args
+# Usage: kvm-test-1-run.sh config resdir seconds qemu-args boot_args_in
 #
-# qemu-args defaults to "-enable-kvm -soundhw pcspk -nographic", along with
-#			arguments specifying the number of CPUs and other
-#			options generated from the underlying CPU architecture.
-# boot_args defaults to value returned by the per_version_boot_params
+# qemu-args defaults to "-enable-kvm -display none -no-reboot", along
+#			with arguments specifying the number of CPUs
+#			and other options generated from the underlying
+#			CPU architecture.
+# boot_args_in defaults to value returned by the per_version_boot_params
 #			shell function.
 #
-# Anything you specify for either qemu-args or boot_args is appended to
+# Anything you specify for either qemu-args or boot_args_in is appended to
 # the default values.  The "-smp" value is deduced from the contents of
 # the config fragment.
 #
 # More sophisticated argument parsing is clearly needed.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
-grace=120
-
-T=/tmp/kvm-test-1-run.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm-test-1-run.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-touch $T
 
-. $KVM/bin/functions.sh
+. functions.sh
 . $CONFIGFRAG/ver_functions.sh
 
 config_template=${1}
 config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
 title=`echo $config_template | sed -e 's/^.*\///'`
-builddir=${2}
-if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
-then
-	echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
-	exit 1
-fi
-resdir=${3}
+resdir=${2}
 if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
 then
 	echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
 	exit 1
 fi
-cp $config_template $resdir/ConfigFragment
-echo ' ---' `date`: Starting build
+echo ' ---' `date`: Starting build, PID $$
 echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
-if test -r "$config_dir/CFcommon"
+touch $resdir/ConfigFragment.input
+
+# Combine additional Kconfig options into an existing set such that
+# newer options win.  The first argument is the Kconfig source ID, the
+# second the to-be-updated file within $T, and the third and final the
+# list of additional Kconfig options.  Note that a $2.tmp file is
+# created when doing the update.
+config_override_param () {
+	if test -n "$3"
+	then
+		echo $3 | sed -e 's/^ *//' -e 's/ *$//' | tr -s " " "\012" > $T/Kconfig_args
+		echo " --- $1" >> $resdir/ConfigFragment.input
+		cat $T/Kconfig_args >> $resdir/ConfigFragment.input
+		config_override.sh $T/$2 $T/Kconfig_args > $T/$2.tmp
+		mv $T/$2.tmp $T/$2
+	fi
+}
+
+echo > $T/KcList
+config_override_param "$config_dir/CFcommon" KcList "`cat $config_dir/CFcommon 2> /dev/null`"
+config_override_param "$config_template" KcList "`cat $config_template 2> /dev/null`"
+config_override_param "--gdb options" KcList "$TORTURE_KCONFIG_GDB_ARG"
+config_override_param "--kasan options" KcList "$TORTURE_KCONFIG_KASAN_ARG"
+config_override_param "--kcsan options" KcList "$TORTURE_KCONFIG_KCSAN_ARG"
+config_override_param "--kconfig argument" KcList "$TORTURE_KCONFIG_ARG"
+config_override_param "$config_dir/CFcommon.$(uname -m)" KcList \
+		      "`cat $config_dir/CFcommon.$(uname -m) 2> /dev/null`"
+cp $T/KcList $resdir/ConfigFragment
+
+base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
+if test "$base_resdir" != "$resdir" && (test -f $base_resdir/bzImage || test -f $base_resdir/Image) && test -f $base_resdir/vmlinux
 then
-	cat < $config_dir/CFcommon >> $T
-fi
-# Optimizations below this point
-# CONFIG_USB=n
-# CONFIG_SECURITY=n
-# CONFIG_NFS_FS=n
-# CONFIG_SOUND=n
-# CONFIG_INPUT_JOYSTICK=n
-# CONFIG_INPUT_TABLET=n
-# CONFIG_INPUT_TOUCHSCREEN=n
-# CONFIG_INPUT_MISC=n
-# CONFIG_INPUT_MOUSE=n
-# # CONFIG_NET=n # disables console access, so accept the slower build.
-# CONFIG_SCSI=n
-# CONFIG_ATA=n
-# CONFIG_FAT_FS=n
-# CONFIG_MSDOS_FS=n
-# CONFIG_VFAT_FS=n
-# CONFIG_ISO9660_FS=n
-# CONFIG_QUOTA=n
-# CONFIG_HID=n
-# CONFIG_CRYPTO=n
-# CONFIG_PCCARD=n
-# CONFIG_PCMCIA=n
-# CONFIG_CARDBUS=n
-# CONFIG_YENTA=n
-if kvm-build.sh $config_template $builddir $T
+	# Rerunning previous test, so use that test's kernel.
+	QEMU="`identify_qemu $base_resdir/vmlinux`"
+	BOOT_IMAGE="`identify_boot_image $QEMU`"
+	KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
+	ln -s $base_resdir/Make*.out $resdir  # for kvm-recheck.sh
+	ln -s $base_resdir/.config $resdir  # for kvm-recheck.sh
+	# Arch-independent indicator
+	touch $resdir/builtkernel
+elif test "$base_resdir" != "$resdir"
 then
-	QEMU="`identify_qemu $builddir/vmlinux`"
+	# Rerunning previous test for which build failed
+	ln -s $base_resdir/Make*.out $resdir  # for kvm-recheck.sh
+	ln -s $base_resdir/.config $resdir  # for kvm-recheck.sh
+	echo Initial build failed, not running KVM, see $resdir.
+	if test -f $resdir/build.wait
+	then
+		mv $resdir/build.wait $resdir/build.ready
+	fi
+	exit 1
+elif kvm-build.sh $T/KcList $resdir
+then
+	# Had to build a kernel for this test.
+	QEMU="`identify_qemu vmlinux`"
 	BOOT_IMAGE="`identify_boot_image $QEMU`"
-	cp $builddir/Make*.out $resdir
-	cp $builddir/.config $resdir
+	cp vmlinux $resdir
+	cp .config $resdir
+	cp Module.symvers $resdir > /dev/null || :
+	cp System.map $resdir > /dev/null || :
 	if test -n "$BOOT_IMAGE"
 	then
-		cp $builddir/$BOOT_IMAGE $resdir
+		cp $BOOT_IMAGE $resdir
+		KERNEL=$resdir/${BOOT_IMAGE##*/}
+		# Arch-independent indicator
+		touch $resdir/builtkernel
 	else
 		echo No identifiable boot image, not running KVM, see $resdir.
 		echo Do the torture scripts know about your architecture?
 	fi
 	parse-build.sh $resdir/Make.out $title
-	if test -f $builddir.wait
-	then
-		mv $builddir.wait $builddir.ready
-	fi
 else
-	cp $builddir/Make*.out $resdir
-	cp $builddir/.config $resdir || :
+	# Build failed.
+	cp .config $resdir || :
 	echo Build failed, not running KVM, see $resdir.
-	if test -f $builddir.wait
+	if test -f $resdir/build.wait
 	then
-		mv $builddir.wait $builddir.ready
+		mv $resdir/build.wait $resdir/build.ready
 	fi
 	exit 1
 fi
-while test -f $builddir.ready
+if test -f $resdir/build.wait
+then
+	mv $resdir/build.wait $resdir/build.ready
+fi
+while test -f $resdir/build.ready
 do
 	sleep 1
 done
-minutes=$4
-seconds=$(($minutes * 60))
-qemu_args=$5
-boot_args=$6
+seconds=$3
+qemu_args=$4
+boot_args_in=$5
 
-cd $KVM
-kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
 if test -z "$TORTURE_BUILDONLY"
 then
 	echo ' ---' `date`: Starting kernel
 fi
 
 # Generate -smp qemu argument.
-qemu_args="-enable-kvm -soundhw pcspk -nographic $qemu_args"
-cpu_count=`configNR_CPUS.sh $config_template`
-cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
-vcpus=`identify_qemu_vcpus`
-if test $cpu_count -gt $vcpus
+qemu_args="-enable-kvm -display none -no-reboot $qemu_args"
+cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
+cpu_count=`configfrag_boot_cpus "$boot_args_in" "$config_template" "$cpu_count"`
+if test "$cpu_count" -gt "$TORTURE_ALLOTED_CPUS"
 then
-	echo CPU count limited from $cpu_count to $vcpus
-	touch $resdir/Warnings
-	echo CPU count limited from $cpu_count to $vcpus >> $resdir/Warnings
-	cpu_count=$vcpus
+	echo CPU count limited from $cpu_count to $TORTURE_ALLOTED_CPUS | tee -a $resdir/Warnings
+	cpu_count=$TORTURE_ALLOTED_CPUS
 fi
 qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
+qemu_args="`specify_qemu_net "$qemu_args"`"
 
 # Generate architecture-specific and interaction-specific qemu arguments
-qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$builddir/console.log"`"
+qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
 
 # Generate qemu -append arguments
 qemu_append="`identify_qemu_append "$QEMU"`"
 
 # Pull in Kconfig-fragment boot parameters
-boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
+boot_args="`configfrag_boot_params "$boot_args_in" "$config_template"`"
 # Generate kernel-version-specific boot parameters
-boot_args="`per_version_boot_params "$boot_args" $builddir/.config $seconds`"
+boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`"
+if test -n "$TORTURE_BOOT_GDB_ARG"
+then
+	boot_args="$TORTURE_BOOT_GDB_ARG $boot_args"
+fi
+
+# Give bare-metal advice
+modprobe_args="`echo $boot_args | tr -s ' ' '\012' | grep "^$TORTURE_MOD\." | sed -e "s/$TORTURE_MOD\.//g"`"
+kboot_args="`echo $boot_args | tr -s ' ' '\012' | grep -v "^$TORTURE_MOD\."`"
+testid_txt="`dirname $resdir`/testid.txt"
+touch $resdir/bare-metal
+echo To run this scenario on bare metal: >> $resdir/bare-metal
+echo >> $resdir/bare-metal
+echo " 1." Set your bare-metal build tree to the state shown in this file: >> $resdir/bare-metal
+echo "   " $testid_txt >> $resdir/bare-metal
+echo " 2." Update your bare-metal build tree"'"s .config based on this file: >> $resdir/bare-metal
+echo "   " $resdir/ConfigFragment >> $resdir/bare-metal
+echo " 3." Make the bare-metal kernel"'"s build system aware of your .config updates: >> $resdir/bare-metal
+echo "   " $ 'yes "" | make oldconfig' >> $resdir/bare-metal
+echo " 4." Build your bare-metal kernel. >> $resdir/bare-metal
+echo " 5." Boot your bare-metal kernel with the following parameters: >> $resdir/bare-metal
+echo "   " $kboot_args >> $resdir/bare-metal
+echo " 6." Start the test with the following command: >> $resdir/bare-metal
+echo "   " $ modprobe $TORTURE_MOD $modprobe_args >> $resdir/bare-metal
+echo " 7." After some time, end the test with the following command: >> $resdir/bare-metal
+echo "   " $ rmmod $TORTURE_MOD >> $resdir/bare-metal
+echo " 8." Copy your bare-metal kernel"'"s .config file, overwriting this file: >> $resdir/bare-metal
+echo "   " $resdir/.config >> $resdir/bare-metal
+echo " 9." Copy the console output from just before the modprobe to just after >> $resdir/bare-metal
+echo "   " the rmmod into this file: >> $resdir/bare-metal
+echo "   " $resdir/console.log >> $resdir/bare-metal
+echo "10." Check for runtime errors using the following command: >> $resdir/bare-metal
+echo "   " $ tools/testing/selftests/rcutorture/bin/kvm-recheck.sh `dirname $resdir` >> $resdir/bare-metal
+echo >> $resdir/bare-metal
+echo Some of the above steps may be skipped if you build your bare-metal >> $resdir/bare-metal
+echo kernel here: `head -n 1 $testid_txt | sed -e 's/^Build directory: //'`  >> $resdir/bare-metal
+
+echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" $TORTURE_QEMU_GDB_ARG > $resdir/qemu-cmd
+echo "# TORTURE_SHUTDOWN_GRACE=$TORTURE_SHUTDOWN_GRACE" >> $resdir/qemu-cmd
+echo "# seconds=$seconds" >> $resdir/qemu-cmd
+echo "# TORTURE_KCONFIG_GDB_ARG=\"$TORTURE_KCONFIG_GDB_ARG\"" >> $resdir/qemu-cmd
+echo "# TORTURE_JITTER_START=\"$TORTURE_JITTER_START\"" >> $resdir/qemu-cmd
+echo "# TORTURE_JITTER_STOP=\"$TORTURE_JITTER_STOP\"" >> $resdir/qemu-cmd
+echo "# TORTURE_TRUST_MAKE=\"$TORTURE_TRUST_MAKE\"; export TORTURE_TRUST_MAKE" >> $resdir/qemu-cmd
+echo "# TORTURE_CPU_COUNT=$cpu_count" >> $resdir/qemu-cmd
 
 if test -n "$TORTURE_BUILDONLY"
 then
@@ -168,62 +214,6 @@ then
 	touch $resdir/buildonly
 	exit 0
 fi
-echo "NOTE: $QEMU either did not run or was interactive" > $builddir/console.log
-echo $QEMU $qemu_args -m 512 -kernel $resdir/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
-( $QEMU $qemu_args -m 512 -kernel $resdir/bzImage -append "$qemu_append $boot_args"; echo $? > $resdir/qemu-retval ) &
-qemu_pid=$!
-commandcompleted=0
-echo Monitoring qemu job at pid $qemu_pid
-while :
-do
-	kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
-	if kill -0 $qemu_pid > /dev/null 2>&1
-	then
-		if test $kruntime -ge $seconds
-		then
-			break;
-		fi
-		sleep 1
-	else
-		commandcompleted=1
-		if test $kruntime -lt $seconds
-		then
-			echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
-			grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
-			killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
-			if test -n "$killpid"
-			then
-				echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
-				ps -fp $killpid >> $resdir/Warnings 2>&1
-			fi
-		else
-			echo ' ---' `date`: Kernel done
-		fi
-		break
-	fi
-done
-if test $commandcompleted -eq 0
-then
-	echo Grace period for qemu job at pid $qemu_pid
-	while :
-	do
-		kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
-		if kill -0 $qemu_pid > /dev/null 2>&1
-		then
-			:
-		else
-			break
-		fi
-		if test $kruntime -ge $((seconds + grace))
-		then
-			echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
-			kill -KILL $qemu_pid
-			break
-		fi
-		sleep 1
-	done
-fi
 
-cp $builddir/console.log $resdir
-parse-torture.sh $resdir/console.log $title
+kvm-test-1-run-qemu.sh $resdir
 parse-console.sh $resdir/console.log $title
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-transform.sh b/tools/testing/selftests/rcutorture/bin/kvm-transform.sh
new file mode 100755
index 000000000000..75a2610a27f3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/kvm-transform.sh
@@ -0,0 +1,139 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Transform a qemu-cmd file to allow reuse.
+#
+# Usage: kvm-transform.sh bzImage console.log jitter_dir seconds [ bootargs ] < qemu-cmd-in > qemu-cmd-out
+#
+#	bzImage: Kernel and initrd from the same prior kvm.sh run.
+#	console.log: File into which to place console output.
+#	jitter_dir: Jitter directory for TORTURE_JITTER_START and
+#		TORTURE_JITTER_STOP environment variables.
+#	seconds: Run duaration for *.shutdown_secs module parameter.
+#	bootargs: New kernel boot parameters.  Beware of Robert Tables.
+#
+# The original qemu-cmd file is provided on standard input.
+# The transformed qemu-cmd file is on standard output.
+# The transformation assumes that the qemu command is confined to a
+# single line.  It also assumes no whitespace in filenames.
+#
+# Copyright (C) 2020 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+T=`mktemp -d /tmp/kvm-transform.sh.XXXXXXXXXX`
+trap 'rm -rf $T' 0 2
+
+image="$1"
+if test -z "$image"
+then
+	echo Need kernel image file.
+	exit 1
+fi
+consolelog="$2"
+if test -z "$consolelog"
+then
+	echo "Need console log file name."
+	exit 1
+fi
+jitter_dir="$3"
+if test -z "$jitter_dir" || ! test -d "$jitter_dir"
+then
+	echo "Need valid jitter directory: '$jitter_dir'"
+	exit 1
+fi
+seconds="$4"
+if test -n "$seconds" && echo $seconds | grep -q '[^0-9]'
+then
+	echo "Invalid duration, should be numeric in seconds: '$seconds'"
+	exit 1
+fi
+bootargs="$5"
+
+# Build awk program.
+echo "BEGIN {" > $T/bootarg.awk
+echo $bootargs | tr -s ' ' '\012' |
+	awk -v dq='"' '/./ { print "\tbootarg[" NR "] = " dq $1 dq ";" }' >> $T/bootarg.awk
+echo $bootargs | tr -s ' ' '\012' | sed -e 's/=.*$//' |
+	awk -v dq='"' '/./ { print "\tbootpar[" NR "] = " dq $1 dq ";" }' >> $T/bootarg.awk
+cat >> $T/bootarg.awk << '___EOF___'
+}
+
+/^# seconds=/ {
+	if (seconds == "")
+		print $0;
+	else
+		print "# seconds=" seconds;
+	next;
+}
+
+/^# TORTURE_JITTER_START=/ {
+	print "# TORTURE_JITTER_START=\". jitterstart.sh " $4 " " jitter_dir " " $6 " " $7;
+	next;
+}
+
+/^# TORTURE_JITTER_STOP=/ {
+	print "# TORTURE_JITTER_STOP=\". jitterstop.sh " " " jitter_dir " " $5;
+	next;
+}
+
+/^#/ {
+	print $0;
+	next;
+}
+
+{
+	line = "";
+	for (i = 1; i <= NF; i++) {
+		if (line == "") {
+			line = $i;
+		} else {
+			line = line " " $i;
+		}
+		if ($i == "-serial") {
+			i++;
+			line = line " file:" consolelog;
+		} else if ($i == "-kernel") {
+			i++;
+			line = line " " image;
+		} else if ($i == "-append") {
+			for (i++; i <= NF; i++) {
+				arg = $i;
+				lq = "";
+				rq = "";
+				if ("" seconds != "" && $i ~ /\.shutdown_secs=[0-9]*$/)
+					sub(/[0-9]*$/, seconds, arg);
+				if (arg ~ /^"/) {
+					lq = substr(arg, 1, 1);
+					arg  = substr(arg, 2);
+				}
+				if (arg ~ /"$/) {
+					rq = substr(arg, length($i), 1);
+					arg = substr(arg, 1, length($i) - 1);
+				}
+				par = arg;
+				gsub(/=.*$/, "", par);
+				j = 1;
+				while (bootpar[j] != "") {
+					if (bootpar[j] == par) {
+						arg = "";
+						break;
+					}
+					j++;
+				}
+				if (line == "")
+					line = lq arg;
+				else
+					line = line " " lq arg;
+			}
+			for (j in bootarg)
+				line = line " " bootarg[j];
+			line = line rq;
+		}
+	}
+	print line;
+}
+___EOF___
+
+awk -v image="$image" -v consolelog="$consolelog" -v jitter_dir="$jitter_dir" \
+    -v seconds="$seconds" -f $T/bootarg.awk
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index fbe2dbff1e21..fff15821c44c 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -1,57 +1,68 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
-# Run a series of 14 tests under KVM.  These are not particularly
-# well-selected or well-tuned, but are the current set.  Run from the
-# top level of the source tree.
-#
-# Edit the definitions below to set the locations of the various directories,
-# as well as the test duration.
+# Run a series of tests under KVM.  By default, this series is specified
+# by the relevant CFLIST file, but can be overridden by the --configs
+# command-line argument.
 #
 # Usage: kvm.sh [ options ]
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 scriptname=$0
 args="$*"
 
-T=/tmp/kvm.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/kvm.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-mkdir $T
 
-dur=30
+cd `dirname $scriptname`/../../../../../
+
+# This script knows only English.
+LANG=en_US.UTF-8; export LANG
+
+dur=$((30*60))
 dryrun=""
-KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
-PATH=${KVM}/bin:$PATH; export PATH
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
 TORTURE_DEFCONFIG=defconfig
 TORTURE_BOOT_IMAGE=""
-TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
+TORTURE_BUILDONLY=
+TORTURE_INITRD="$RCUTORTURE/initrd"; export TORTURE_INITRD
+TORTURE_KCONFIG_ARG=""
+TORTURE_KCONFIG_GDB_ARG=""
+TORTURE_BOOT_GDB_ARG=""
+TORTURE_QEMU_GDB_ARG=""
+TORTURE_JITTER_START=""
+TORTURE_JITTER_STOP=""
+TORTURE_KCONFIG_KASAN_ARG=""
+TORTURE_KCONFIG_KCSAN_ARG=""
 TORTURE_KMAKE_ARG=""
+TORTURE_NO_AFFINITY=""
+TORTURE_QEMU_MEM=512
+torture_qemu_mem_default=1
+TORTURE_REMOTE=
+TORTURE_SHUTDOWN_GRACE=180
 TORTURE_SUITE=rcu
+TORTURE_MOD=rcutorture
+TORTURE_TRUST_MAKE=""
+debuginfo="CONFIG_DEBUG_INFO_NONE=n CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y"
 resdir=""
 configs=""
 cpus=0
-ds=`date +%Y.%m.%d-%H:%M:%S`
+ds=`date +%Y.%m.%d-%H.%M.%S`
+jitter="-1"
 
-. functions.sh
+startdate="`date`"
+starttime="`get_starttime`"
 
 usage () {
 	echo "Usage: $scriptname optional arguments:"
+	echo "       --allcpus"
 	echo "       --bootargs kernel-boot-arguments"
 	echo "       --bootimage relative-path-to-kernel-boot-image"
 	echo "       --buildonly"
@@ -59,25 +70,41 @@ usage () {
 	echo "       --cpus N"
 	echo "       --datestamp string"
 	echo "       --defconfig string"
-	echo "       --dryrun sched|script"
-	echo "       --duration minutes"
+	echo "       --debug-info"
+	echo "       --dryrun batches|scenarios|sched|script"
+	echo "       --duration minutes | <seconds>s | <hours>h | <days>d"
+	echo "       --gdb"
+	echo "       --help"
 	echo "       --interactive"
+	echo "       --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
+	echo "       --kasan"
+	echo "       --kconfig Kconfig-options"
+	echo "       --kcsan"
 	echo "       --kmake-arg kernel-make-arguments"
 	echo "       --mac nn:nn:nn:nn:nn:nn"
+	echo "       --memory megabytes|nnnG"
+	echo "       --no-affinity"
 	echo "       --no-initrd"
-	echo "       --qemu-args qemu-system-..."
+	echo "       --qemu-args qemu-arguments"
 	echo "       --qemu-cmd qemu-system-..."
+	echo "       --remote"
 	echo "       --results absolute-pathname"
-	echo "       --torture rcu"
+	echo "       --shutdown-grace seconds"
+	echo "       --torture lock|rcu|rcuscale|refscale|scf|X*"
+	echo "       --trust-make"
 	exit 1
 }
 
 while test $# -gt 0
 do
 	case "$1" in
-	--bootargs)
+	--allcpus)
+		cpus=$TORTURE_ALLOTED_CPUS
+		max_cpus=$TORTURE_ALLOTED_CPUS
+		;;
+	--bootargs|--bootarg)
 		checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
-		TORTURE_BOOTARGS="$2"
+		TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"
 		shift
 		;;
 	--bootimage)
@@ -85,45 +112,103 @@ do
 		TORTURE_BOOT_IMAGE="$2"
 		shift
 		;;
-	--buildonly)
+	--buildonly|--build-only)
 		TORTURE_BUILDONLY=1
 		;;
-	--configs)
-		checkarg --configs "(list of config files)" "$#" "$2" '^[^/]*$' '^--'
-		configs="$2"
+	--configs|--config)
+		checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'
+		configs="$configs $2"
 		shift
 		;;
 	--cpus)
 		checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
 		cpus=$2
+		TORTURE_ALLOTED_CPUS="$2"
+		if test -z "$TORTURE_REMOTE"
+		then
+			max_cpus="`identify_qemu_vcpus`"
+			if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"
+			then
+				TORTURE_ALLOTED_CPUS=$max_cpus
+			fi
+		fi
 		shift
 		;;
 	--datestamp)
-		checkarg --datestamp "(relative pathname)" "$#" "$2" '^[^/]*$' '^--'
+		checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
 		ds=$2
 		shift
 		;;
+	--debug-info|--debuginfo)
+		if test -z "$TORTURE_KCONFIG_KCSAN_ARG" && test -z "$TORTURE_BOOT_GDB_ARG"
+		then
+			TORTURE_KCONFIG_KCSAN_ARG="$debuginfo"; export TORTURE_KCONFIG_KCSAN_ARG
+			TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
+		else
+			echo "Ignored redundant --debug-info (implied by --kcsan &c)"
+		fi
+		;;
 	--defconfig)
 		checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 		TORTURE_DEFCONFIG=$2
 		shift
 		;;
 	--dryrun)
-		checkarg --dryrun "sched|script" $# "$2" 'sched\|script' '^--'
+		checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|scenarios\|sched\|script' '^--'
 		dryrun=$2
 		shift
 		;;
 	--duration)
-		checkarg --duration "(minutes)" $# "$2" '^[0-9]*$' '^error'
-		dur=$2
+		checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
+		mult=60
+		if echo "$2" | grep -q 's$'
+		then
+			mult=1
+		elif echo "$2" | grep -q 'h$'
+		then
+			mult=3600
+		elif echo "$2" | grep -q 'd$'
+		then
+			mult=86400
+		fi
+		ts=`echo $2 | sed -e 's/[smhd]$//'`
+		dur=$(($ts*mult))
 		shift
 		;;
+	--gdb)
+		TORTURE_KCONFIG_GDB_ARG="$debuginfo"; export TORTURE_KCONFIG_GDB_ARG
+		TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
+		TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
+		;;
+	--help|-h)
+		usage
+		;;
 	--interactive)
 		TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 		;;
-	--kmake-arg)
+	--jitter)
+		checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
+		jitter="$2"
+		shift
+		;;
+	--kasan)
+		TORTURE_KCONFIG_KASAN_ARG="$debuginfo CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
+		if test -n "$torture_qemu_mem_default"
+		then
+			TORTURE_QEMU_MEM=2G
+		fi
+		;;
+	--kconfig|--kconfigs)
+		checkarg --kconfig "(Kconfig options)" $# "$2" '^\(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|-\?[0-9]\+\|"[^"]*"\)\( \+\(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|-\?[0-9]\+\|"[^"]*"\)\)* *$' '^error$'
+		TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
+		shift
+		;;
+	--kcsan)
+		TORTURE_KCONFIG_KCSAN_ARG="$debuginfo CONFIG_KCSAN=y CONFIG_KCSAN_STRICT=y CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000 CONFIG_KCSAN_VERBOSE=y CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y"; export TORTURE_KCONFIG_KCSAN_ARG
+		;;
+	--kmake-arg|--kmake-args)
 		checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
-		TORTURE_KMAKE_ARG="$2"
+		TORTURE_KMAKE_ARG="`echo "$TORTURE_KMAKE_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
 		shift
 		;;
 	--mac)
@@ -131,12 +216,21 @@ do
 		TORTURE_QEMU_MAC=$2
 		shift
 		;;
+	--memory)
+		checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
+		TORTURE_QEMU_MEM=$2
+		torture_qemu_mem_default=
+		shift
+		;;
+	--no-affinity)
+		TORTURE_NO_AFFINITY="no-affinity"
+		;;
 	--no-initrd)
 		TORTURE_INITRD=""; export TORTURE_INITRD
 		;;
-	--qemu-args)
-		checkarg --qemu-args "-qemu args" $# "$2" '^-' '^error'
-		TORTURE_QEMU_ARG="$2"
+	--qemu-args|--qemu-arg)
+		checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
+		TORTURE_QEMU_ARG="`echo "$TORTURE_QEMU_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
 		shift
 		;;
 	--qemu-cmd)
@@ -144,15 +238,34 @@ do
 		TORTURE_QEMU_CMD="$2"
 		shift
 		;;
+	--remote)
+		TORTURE_REMOTE=1
+		;;
 	--results)
 		checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 		resdir=$2
 		shift
 		;;
+	--shutdown-grace)
+		checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
+		TORTURE_SHUTDOWN_GRACE=$2
+		shift
+		;;
 	--torture)
-		checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\)$' '^--'
+		checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\|X.*\)$' '^--'
 		TORTURE_SUITE=$2
+		TORTURE_MOD="`echo $TORTURE_SUITE | sed -e 's/^\(lock\|rcu\|scf\)$/\1torture/'`"
 		shift
+		if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
+		then
+			# If you really want jitter for refscale or
+			# rcuscale, specify it after specifying the rcuscale
+			# or the refscale.  (But why jitter in these cases?)
+			jitter=0
+		fi
+		;;
+	--trust-make)
+		TORTURE_TRUST_MAKE="y"
 		;;
 	*)
 		echo Unknown argument $1
@@ -162,24 +275,33 @@ do
 	shift
 done
 
-CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
+if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
+then
+	:
+else
+	echo No initrd and unable to create one, aborting test >&2
+	exit 1
+fi
+
+CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 
+defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"
 if test -z "$configs"
 then
-	configs="`cat $CONFIGFRAG/CFLIST`"
+	configs=$defaultconfigs
 fi
 
 if test -z "$resdir"
 then
-	resdir=$KVM/res
+	resdir=$RCUTORTURE/res
 fi
 
 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
-touch $T/cfgcpu
+configs_derep=
 for CF in $configs
 do
 	case $CF in
-	[0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
+	[0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**|[0-9][0-9][0-9][0-9]\**)
 		config_reps=`echo $CF | sed -e 's/\*.*$//'`
 		CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 		;;
@@ -188,20 +310,51 @@ do
 		CF1=$CF
 		;;
 	esac
+	for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
+	do
+		configs_derep="$configs_derep $CF1"
+	done
+done
+touch $T/cfgcpu
+configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
+if test -n "$TORTURE_KCONFIG_GDB_ARG"
+then
+	if test "`echo $configs_derep | wc -w`" -gt 1
+	then
+		echo "The --config list is: $configs_derep."
+		echo "Only one --config permitted with --gdb, terminating."
+		exit 1
+	fi
+fi
+echo 'BEGIN {' > $T/cfgcpu.awk
+for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`
+do
 	if test -f "$CONFIGFRAG/$CF1"
 	then
-		cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
+		if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='
+		then
+			echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG
+			cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`
+		else
+			cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
+		fi
 		cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
-		for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
-		do
-			echo $CF1 $cpu_count >> $T/cfgcpu
-		done
+		cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
+		echo 'scenariocpu["'"$CF1"'"] = '"$cpu_count"';' >> $T/cfgcpu.awk
 	else
 		echo "The --configs file $CF1 does not exist, terminating."
 		exit 1
 	fi
 done
-sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
+cat << '___EOF___' >> $T/cfgcpu.awk
+}
+{
+	for (i = 1; i <= NF; i++)
+		print $i, scenariocpu[$i];
+}
+___EOF___
+echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu
+sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 
 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
@@ -217,15 +370,13 @@ BEGIN {
 }
 
 END {
-	alldone = 0;
 	batch = 0;
 	nc = -1;
 
-	# Each pass through the following loop creates on test batch
-	# that can be executed concurrently given ncpus.  Note that a
-	# given test that requires more than the available CPUs will run in
-	# their own batch.  Such tests just have to make do with what
-	# is available.
+	# Each pass through the following loop creates on test batch that
+	# can be executed concurrently given ncpus.  Note that a given test
+	# that requires more than the available CPUs will run in its own
+	# batch.  Such tests just have to make do with what is available.
 	while (nc != ncpus) {
 		batch++;
 		nc = ncpus;
@@ -256,47 +407,47 @@ END {
 # Generate a script to execute the tests in appropriate batches.
 cat << ___EOF___ > $T/script
 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
-KVM="$KVM"; export KVM
+RCUTORTURE="$RCUTORTURE"; export RCUTORTURE
 PATH="$PATH"; export PATH
+TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
+TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
+TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
+TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
+TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
+TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
+TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
+TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD
+TORTURE_NO_AFFINITY="$TORTURE_NO_AFFINITY"; export TORTURE_NO_AFFINITY
 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
+TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
+TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
+TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE
 if ! test -e $resdir
 then
 	mkdir -p "$resdir" || :
 fi
-mkdir $resdir/$ds
+mkdir -p $resdir/$ds
+TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR
+TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE
 echo Results directory: $resdir/$ds
 echo $scriptname $args
 touch $resdir/$ds/log
 echo $scriptname $args >> $resdir/$ds/log
-echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
-pwd > $resdir/$ds/testid.txt
-if test -d .git
-then
-	git status >> $resdir/$ds/testid.txt
-	git rev-parse HEAD >> $resdir/$ds/testid.txt
-	if ! git diff HEAD > $T/git-diff 2>&1
-	then
-		cp $T/git-diff $resdir/$ds
-	fi
-fi
+echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite
+mktestid.sh $resdir/$ds
 ___EOF___
-awk < $T/cfgcpu.pack \
-	-v CONFIGDIR="$CONFIGFRAG/" \
-	-v KVM="$KVM" \
-	-v ncpus=$cpus \
-	-v rd=$resdir/$ds/ \
-	-v dur=$dur \
-	-v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
-	-v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
-'BEGIN {
+kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk
+kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk
+cat << '___EOF___' >> $T/dumpbatches.awk
+BEGIN {
 	i = 0;
 }
 
@@ -307,13 +458,22 @@ awk < $T/cfgcpu.pack \
 }
 
 # Dump out the scripting required to run one test batch.
-function dump(first, pastlast)
+function dump(first, pastlast, batchnum,  affinitylist)
 {
-	print "echo ----Start batch: `date`";
-	print "echo ----Start batch: `date` >> " rd "/log";
+	print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
+	print "needqemurun="
 	jn=1
+	njitter = 0;
+	split(jitter, ja);
+	if (ja[1] == -1 && ncpus == 0)
+		njitter = 1;
+	else if (ja[1] == -1)
+		njitter = ncpus;
+	else
+		njitter = ja[1];
+	print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START";
+	print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP"
 	for (j = first; j < pastlast; j++) {
-		builddir=KVM "/b" jn
 		cpusr[jn] = cpus[j];
 		if (cfrep[cf[j]] == "") {
 			cfr[jn] = cf[j];
@@ -322,48 +482,70 @@ function dump(first, pastlast)
 			cfrep[cf[j]]++;
 			cfr[jn] = cf[j] "." cfrep[cf[j]];
 		}
+		builddir=rd cfr[jn] "/build";
 		if (cpusr[jn] > ncpus && ncpus != 0)
 			ovf = "-ovf";
 		else
 			ovf = "";
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date`";
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` >> " rd "/log";
-		print "rm -f " builddir ".*";
-		print "touch " builddir ".wait";
-		print "mkdir " builddir " > /dev/null 2>&1 || :";
+		print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
 		print "mkdir " rd cfr[jn] " || :";
-		print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn]  "/kvm-test-1-run.sh.out 2>&1 &"
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date`";
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` >> " rd "/log";
+		print "touch " builddir ".wait";
+		affinitylist = "";
+		if (gotcpus()) {
+			affinitylist = nextcpus(cpusr[jn]);
+		}
+		if (affinitylist ~ /^[0-9,-][0-9,-]*$/)
+			print "export TORTURE_AFFINITY=" affinitylist;
+		else
+			print "export TORTURE_AFFINITY=";
+		print "kvm-test-1-run.sh " CONFIGDIR cf[j], rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn]  "/kvm-test-1-run.sh.out 2>&1 &"
+		print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
 		print "while test -f " builddir ".wait"
 		print "do"
 		print "\tsleep 1"
 		print "done"
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date`";
-		print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` >> " rd "/log";
+		print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
 		jn++;
 	}
+	print "runfiles="
 	for (j = 1; j < jn; j++) {
-		builddir=KVM "/b" j
-		print "rm -f " builddir ".ready"
-		print "if test -z \"$TORTURE_BUILDONLY\""
+		builddir=rd cfr[j] "/build";
+		if (TORTURE_BUILDONLY)
+			print "rm -f " builddir ".ready"
+		else
+			print "mv " builddir ".ready " builddir ".run"
+			print "runfiles=\"$runfiles " builddir ".run\""
+		fi
+		print "if test -f \"" rd cfr[j] "/builtkernel\""
 		print "then"
-		print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date`";
-		print "\techo ----", cfr[j], cpusr[j] ovf ": Starting kernel. `date` >> " rd "/log";
+		print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
+		print "\tneedqemurun=1"
 		print "fi"
 	}
-	print "wait"
-	print "if test -z \"$TORTURE_BUILDONLY\""
+	if (TORTURE_BUILDONLY && njitter != 0) {
+		njitter = 0;
+		print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
+	}
+	if (TORTURE_BUILDONLY) {
+		print "needqemurun="
+	}
+	print "if test -n \"$needqemurun\""
 	print "then"
-	print "\techo ---- All kernel runs complete. `date`";
-	print "\techo ---- All kernel runs complete. `date` >> " rd "/log";
+	print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
+	print "\t$TORTURE_JITTER_START";
+	print "\twhile ls $runfiles > /dev/null 2>&1"
+	print "\tdo"
+	print "\t\t:"
+	print "\tdone"
+	print "\t$TORTURE_JITTER_STOP";
+	print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
+	print "else"
+	print "\twait"
+	print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
 	print "fi"
 	for (j = 1; j < jn; j++) {
-		builddir=KVM "/b" j
-		print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results:";
-		print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: >> " rd "/log";
-		print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out";
-		print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out >> " rd "/log";
+		print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
+		print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out | tee -a " rd "log";
 	}
 }
 
@@ -371,34 +553,73 @@ END {
 	njobs = i;
 	nc = ncpus;
 	first = 0;
+	batchnum = 1;
 
 	# Each pass through the following loop considers one test.
 	for (i = 0; i < njobs; i++) {
 		if (ncpus == 0) {
 			# Sequential test specified, each test its own batch.
-			dump(i, i + 1);
+			dump(i, i + 1, batchnum);
 			first = i;
+			batchnum++;
 		} else if (nc < cpus[i] && i != 0) {
 			# Out of CPUs, dump out a batch.
-			dump(first, i);
+			dump(first, i, batchnum);
 			first = i;
 			nc = ncpus;
+			batchnum++;
 		}
 		# Account for the CPUs needed by the current test.
 		nc -= cpus[i];
 	}
 	# Dump the last batch.
 	if (ncpus != 0)
-		dump(first, i);
-}' >> $T/script
-
-cat << ___EOF___ >> $T/script
-echo
-echo
-echo " --- `date` Test summary:"
-echo Results directory: $resdir/$ds
-kvm-recheck.sh $resdir/$ds
+		dump(first, i, batchnum);
+}
 ___EOF___
+awk < $T/cfgcpu.pack \
+	-v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
+	-v CONFIGDIR="$CONFIGFRAG/" \
+	-v RCUTORTURE="$RCUTORTURE" \
+	-v ncpus=$cpus \
+	-v jitter="$jitter" \
+	-v rd=$resdir/$ds/ \
+	-v dur=$dur \
+	-v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
+	-v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
+	-f $T/dumpbatches.awk >> $T/script
+echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script
+
+# Extract the tests and their batches from the script.
+grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |
+	sed -e 's/:.*$//' -e 's/^echo //' -e 's/-ovf//' |
+	awk '
+	/^----Start/ {
+		batchno = $3;
+		next;
+	}
+	{
+		print batchno, $1, $2
+	}' > $T/batches
+
+# As above, but one line per batch.
+grep -v '^#' $T/batches | awk '
+BEGIN {
+	oldbatch = 1;
+}
+
+{
+	if (oldbatch != $1) {
+		print ++n ". " curbatch;
+		curbatch = "";
+		oldbatch = $1;
+	}
+	curbatch = curbatch " " $2;
+}
+
+END {
+	print ++n ". " curbatch;
+}' > $T/scenarios
 
 if test "$dryrun" = script
 then
@@ -407,13 +628,37 @@ then
 elif test "$dryrun" = sched
 then
 	# Extract the test run schedule from the script.
-	egrep 'Start batch|Starting build\.' $T/script |
-		grep -v ">>" |
+	grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |
 		sed -e 's/:.*$//' -e 's/^echo //'
+	nbuilds="`grep 'Starting build\.' $T/script |
+		  grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |
+		  awk '{ print $1 }' | grep -v '\.' | wc -l`"
+	echo Total number of builds: $nbuilds
+	nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
+	echo Total number of batches: $nbatches
+	exit 0
+elif test "$dryrun" = batches
+then
+	cat $T/batches
+	exit 0
+elif test "$dryrun" = scenarios
+then
+	cat $T/scenarios
 	exit 0
 else
-	# Not a dryrun, so run the script.
-	sh $T/script
+	# Not a dryrun.  Record the batches and the number of CPUs, then run the script.
+	bash $T/script
+	ret=$?
+	cp $T/batches $resdir/$ds/batches
+	cp $T/scenarios $resdir/$ds/scenarios
+	echo '#' cpus=$cpus >> $resdir/$ds/batches
+	exit $ret
 fi
 
 # Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier
+# Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop
+# Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"
+# Control buffer size: --bootargs trace_buf_size=3k
+# Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops
+# Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu
+# Heavy-handed way to also dump on warnings: --bootargs panic_on_warn=1
diff --git a/tools/testing/selftests/rcutorture/bin/mkinitrd.sh b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh
new file mode 100755
index 000000000000..f3f867129560
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/mkinitrd.sh
@@ -0,0 +1,95 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Create an initrd directory if one does not already exist.
+#
+# Copyright (C) IBM Corporation, 2013
+#
+# Author: Connor Shu <Connor.Shu@ibm.com>
+
+D=tools/testing/selftests/rcutorture
+
+# Prerequisite checks
+if [ ! -d "$D" ]; then
+    echo >&2 "$D does not exist: Malformed kernel source tree?"
+    exit 1
+fi
+if [ -s "$D/initrd/init" ]; then
+    echo "$D/initrd/init already exists, no need to create it"
+    exit 0
+fi
+
+# Create a C-language initrd/init infinite-loop program and statically
+# link it.  This results in a very small initrd.
+echo "Creating a statically linked C-language initrd"
+cd $D
+mkdir -p initrd
+cd initrd
+cat > init.c << '___EOF___'
+#ifndef NOLIBC
+#include <unistd.h>
+#include <sys/time.h>
+#endif
+
+volatile unsigned long delaycount;
+
+int main(int argc, char *argv[])
+{
+	int i;
+	struct timeval tv;
+	struct timeval tvb;
+
+	printf("Torture-test rudimentary init program started, command line:\n");
+	for (i = 0; i < argc; i++)
+		printf(" %s", argv[i]);
+	printf("\n");
+	for (;;) {
+		sleep(1);
+		/* Need some userspace time. */
+		if (gettimeofday(&tvb, NULL))
+			continue;
+		do {
+			for (i = 0; i < 1000 * 100; i++)
+				delaycount = i * i;
+			if (gettimeofday(&tv, NULL))
+				break;
+			tv.tv_sec -= tvb.tv_sec;
+			if (tv.tv_sec > 1)
+				break;
+			tv.tv_usec += tv.tv_sec * 1000 * 1000;
+			tv.tv_usec -= tvb.tv_usec;
+		} while (tv.tv_usec < 1000);
+	}
+	return 0;
+}
+___EOF___
+
+# build using nolibc on supported archs (smaller executable) and fall
+# back to regular glibc on other ones.
+if echo -e "#if __x86_64__||__i386__||__i486__||__i586__||__i686__" \
+	   "||__ARM_EABI__||__aarch64__||(__mips__ && _ABIO32)" \
+	   "||__powerpc__||(__riscv && __riscv_xlen == 64)" \
+	   "||__s390x__||__loongarch__" \
+	   "\nyes\n#endif" \
+   | ${CROSS_COMPILE}gcc -E -nostdlib -xc - \
+   | grep -q '^yes'; then
+	# architecture supported by nolibc
+        ${CROSS_COMPILE}gcc -fno-asynchronous-unwind-tables -fno-ident \
+		-nostdlib -include ../../../../include/nolibc/nolibc.h \
+		-s -static -Os -o init init.c -lgcc
+	ret=$?
+else
+	${CROSS_COMPILE}gcc -s -static -Os -o init init.c
+	ret=$?
+fi
+
+if [ "$ret" -ne 0 ]
+then
+	echo "Failed to create a statically linked C-language initrd"
+	exit "$ret"
+fi
+
+rm init.c
+echo "Done creating a statically linked C-language initrd"
+
+exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/mktestid.sh b/tools/testing/selftests/rcutorture/bin/mktestid.sh
new file mode 100755
index 000000000000..16f9907a4dae
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/mktestid.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Create a testid.txt file in the specified directory.
+#
+# Usage: mktestid.sh dirpath
+#
+# Copyright (C) Meta Platforms, Inc.  2025
+#
+# Author: Paul E. McKenney <paulmck@kernel.org>
+
+resdir="$1"
+if test -z "${resdir}" || ! test -d "${resdir}" || ! test -w "${resdir}"
+then
+	echo Path '"'${resdir}'"' not writeable directory, no ${resdir}/testid.txt.
+	exit 1
+fi
+echo Build directory: `pwd` > ${resdir}/testid.txt
+if test -d .git
+then
+	echo Current commit: `git rev-parse HEAD` >> ${resdir}/testid.txt
+	echo >> ${resdir}/testid.txt
+	echo ' ---' Output of "'"git status"'": >> ${resdir}/testid.txt
+	git status >> ${resdir}/testid.txt
+	echo >> ${resdir}/testid.txt
+	echo >> ${resdir}/testid.txt
+	echo ' ---' Output of "'"git diff HEAD"'": >> ${resdir}/testid.txt
+	git diff HEAD >> ${resdir}/testid.txt
+fi
diff --git a/tools/testing/selftests/rcutorture/bin/parse-build.sh b/tools/testing/selftests/rcutorture/bin/parse-build.sh
index a6b57622c2e5..5a0b7ffcf047 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-build.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Check the build output from an rcutorture run for goodness.
 # The "file" is a pathname on the local system, and "title" is
@@ -8,33 +9,18 @@
 #
 # Usage: parse-build.sh file title
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 F=$1
 title=$2
-T=/tmp/parse-build.sh.$$
+T="`mktemp -d ${TMPDIR-/tmp}/parse-build.sh.XXXXXX`"
 trap 'rm -rf $T' 0
-mkdir $T
 
 . functions.sh
 
-if grep -q CC < $F
+if grep -q CC < $F || test -n "$TORTURE_TRUST_MAKE" || grep -qe --trust-make < `dirname $F`/../log
 then
 	:
 else
@@ -52,7 +38,8 @@ fi
 grep warning: < $F > $T/warnings
 grep "include/linux/*rcu*\.h:" $T/warnings > $T/hwarnings
 grep "kernel/rcu/[^/]*:" $T/warnings > $T/cwarnings
-cat $T/hwarnings $T/cwarnings > $T/rcuwarnings
+grep "^ld: .*undefined reference to" $T/warnings | head -1 > $T/ldwarnings
+cat $T/hwarnings $T/cwarnings $T/ldwarnings > $T/rcuwarnings
 if test -s $T/rcuwarnings
 then
 	print_warning $title build errors:
diff --git a/tools/testing/selftests/rcutorture/bin/parse-console.sh b/tools/testing/selftests/rcutorture/bin/parse-console.sh
index d8f35cf116be..21e6ba3615f6 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-console.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-console.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Check the console output from an rcutorture run for oopses.
 # The "file" is a pathname on the local system, and "title" is
@@ -6,39 +7,185 @@
 #
 # Usage: parse-console.sh file title
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2011
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-
-T=/tmp/abat-chk-badness.sh.$$
-trap 'rm -f $T' 0
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
+T="`mktemp -d ${TMPDIR-/tmp}/parse-console.sh.XXXXXX`"
 file="$1"
 title="$2"
 
+trap 'rm -f $T.seq $T.diags' 0
+
 . functions.sh
 
+# Check for presence and readability of console output file
+if test -f "$file" -a -r "$file"
+then
+	:
+else
+	echo $title unreadable console output file: $file
+	exit 1
+fi
 if grep -Pq '\x00' < $file
 then
 	print_warning Console output contains nul bytes, old qemu still running?
 fi
-egrep 'Badness|WARNING:|Warn|BUG|===========|Call Trace:|Oops:|Stall ended before state dump start' < $file | grep -v 'ODEBUG: ' | grep -v 'Warning: unable to open an initial console' > $T
-if test -s $T
+cat /dev/null > $file.diags
+
+# Check for proper termination, except for rcuscale and refscale.
+if test "$TORTURE_SUITE" != rcuscale && test "$TORTURE_SUITE" != refscale
 then
-	print_warning Assertion failure in $file $title
-	cat $T
+	# check for abject failure
+
+	if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file
+	then
+		nerrs=`grep --binary-files=text '!!!' $file |
+		tail -1 |
+		awk '
+		{
+			normalexit = 1;
+			for (i=NF-8;i<=NF;i++) {
+				if (i <= 0 || i !~ /^[0-9]*$/) {
+					bangstring = $0;
+					gsub(/^\[[^]]*] /, "", bangstring);
+					print bangstring;
+					normalexit = 0;
+					exit 0;
+				}
+				sum+=$i;
+			}
+		}
+		END {
+			if (normalexit)
+				print sum " instances"
+		}'`
+		print_bug $title FAILURE, $nerrs
+		exit
+	fi
+
+	grep --binary-files=text 'torture:.*ver:' $file |
+	grep -E --binary-files=text -v '\(null\)|rtc: 000000000* ' |
+	sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' |
+	sed -e 's/^.*ver: //' |
+	awk '
+	BEGIN	{
+		ver = 0;
+		badseq = 0;
+		}
+
+		{
+		if (!badseq && ($1 + 0 != $1 || $1 <= ver)) {
+			badseqno1 = ver;
+			badseqno2 = $1;
+			badseqnr = NR;
+			badseq = 1;
+		}
+		ver = $1
+		}
+
+	END	{
+		if (badseq) {
+			if (badseqno1 == badseqno2 && badseqno2 == ver)
+				print "GP HANG at " ver " torture stat " badseqnr;
+			else
+				print "BAD SEQ " badseqno1 ":" badseqno2 " last:" ver " version " badseqnr;
+		}
+		}' > $T.seq
+
+	if grep -q SUCCESS $file
+	then
+		if test -s $T.seq
+		then
+			print_warning $title `cat $T.seq`
+			echo "   " $file
+			exit 2
+		fi
+	else
+		if grep -q "_HOTPLUG:" $file
+		then
+			print_warning HOTPLUG FAILURES $title `cat $T.seq`
+			echo "   " $file
+			exit 3
+		fi
+		echo $title no success message, `grep --binary-files=text 'ver:' $file | wc -l` successful version messages
+		if test -s $T.seq
+		then
+			print_warning $title `cat $T.seq`
+		fi
+		exit 2
+	fi
+fi | tee -a $file.diags
+
+console-badness.sh < $file > $T.diags
+if test -s $T.diags
+then
+	print_warning "Assertion failure in $file $title"
+	# cat $T.diags
+	summary=""
+	n_badness=`grep -c Badness $file`
+	if test "$n_badness" -ne 0
+	then
+		summary="$summary  Badness: $n_badness"
+	fi
+	n_warn=`grep -v 'Warning: unable to open an initial console' $file | grep -v 'Warning: Failed to add ttynull console. No stdin, stdout, and stderr for the init process' | grep -E -c 'WARNING:|Warn'`
+	if test "$n_warn" -ne 0
+	then
+		summary="$summary  Warnings: $n_warn"
+	fi
+	n_bugs=`grep -E -c '\bBUG|Oops:' $file`
+	if test "$n_bugs" -ne 0
+	then
+		summary="$summary  Bugs: $n_bugs"
+	fi
+	n_kcsan=`grep -E -c 'BUG: KCSAN: ' $file`
+	if test "$n_kcsan" -ne 0
+	then
+		if test "$n_bugs" = "$n_kcsan"
+		then
+			summary="$summary (all bugs kcsan)"
+		else
+			summary="$summary  KCSAN: $n_kcsan"
+		fi
+	fi
+	n_calltrace=`grep -Ec 'Call Trace:|Call trace:' $file`
+	if test "$n_calltrace" -ne 0
+	then
+		summary="$summary  Call Traces: $n_calltrace"
+	fi
+	n_lockdep=`grep -c =========== $file`
+	if test "$n_badness" -ne 0
+	then
+		summary="$summary  lockdep: $n_badness"
+	fi
+	n_stalls=`grep -E -c 'detected stalls on CPUs/tasks:|self-detected stall on CPU|Stall ended before state dump start|\?\?\? Writer stall state' $file`
+	if test "$n_stalls" -ne 0
+	then
+		summary="$summary  Stalls: $n_stalls"
+	fi
+	n_starves=`grep -c 'rcu_.*kthread starved for' $file`
+	if test "$n_starves" -ne 0
+	then
+		summary="$summary  Starves: $n_starves"
+	fi
+	print_warning Summary: $summary
+	cat $T.diags >> $file.diags
+fi
+for i in $file.*.diags
+do
+	if test -f "$i"
+	then
+		cat $i >> $file.diags
+	fi
+done
+if ! test -s $file.diags
+then
+	rm -f $file.diags
+fi
+
+# Call extract_ftrace_from_console function, if the output is empty,
+# don't create $file.ftrace. Otherwise output the results to $file.ftrace
+extract_ftrace_from_console $file > $file.ftrace
+if [ ! -s $file.ftrace ]; then
+	rm -f $file.ftrace
 fi
diff --git a/tools/testing/selftests/rcutorture/bin/parse-torture.sh b/tools/testing/selftests/rcutorture/bin/parse-torture.sh
deleted file mode 100755
index e3c5f0705696..000000000000
--- a/tools/testing/selftests/rcutorture/bin/parse-torture.sh
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/bin/bash
-#
-# Check the console output from a torture run for goodness.
-# The "file" is a pathname on the local system, and "title" is
-# a text string for error-message purposes.
-#
-# The file must contain torture output, but can be interspersed
-# with other dmesg text, as in console-log output.
-#
-# Usage: parse-torture.sh file title
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
-# Copyright (C) IBM Corporation, 2011
-#
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-
-T=/tmp/parse-torture.sh.$$
-file="$1"
-title="$2"
-
-trap 'rm -f $T.seq' 0
-
-. functions.sh
-
-# check for presence of torture output file.
-
-if test -f "$file" -a -r "$file"
-then
-	:
-else
-	echo $title unreadable torture output file: $file
-	exit 1
-fi
-
-# check for abject failure
-
-if grep -q FAILURE $file || grep -q -e '-torture.*!!!' $file
-then
-	nerrs=`grep --binary-files=text '!!!' $file | tail -1 | awk '{for (i=NF-8;i<=NF;i++) sum+=$i; } END {print sum}'`
-	print_bug $title FAILURE, $nerrs instances
-	echo "   " $url
-	exit
-fi
-
-grep --binary-files=text 'torture:.*ver:' $file | grep --binary-files=text -v '(null)' | sed -e 's/^(initramfs)[^]]*] //' -e 's/^\[[^]]*] //' |
-awk '
-BEGIN	{
-	ver = 0;
-	badseq = 0;
-	}
-
-	{
-	if (!badseq && ($5 + 0 != $5 || $5 <= ver)) {
-		badseqno1 = ver;
-		badseqno2 = $5;
-		badseqnr = NR;
-		badseq = 1;
-	}
-	ver = $5
-	}
-
-END	{
-	if (badseq) {
-		if (badseqno1 == badseqno2 && badseqno2 == ver)
-			print "GP HANG at " ver " torture stat " badseqnr;
-		else
-			print "BAD SEQ " badseqno1 ":" badseqno2 " last:" ver " version " badseqnr;
-	}
-	}' > $T.seq
-
-if grep -q SUCCESS $file
-then
-	if test -s $T.seq
-	then
-		print_warning $title $title `cat $T.seq`
-		echo "   " $file
-		exit 2
-	fi
-else
-	if grep -q "_HOTPLUG:" $file
-	then
-		print_warning HOTPLUG FAILURES $title `cat $T.seq`
-		echo "   " $file
-		exit 3
-	fi
-	echo $title no success message, `grep --binary-files=text 'ver:' $file | wc -l` successful version messages
-	if test -s $T.seq
-	then
-		print_warning $title `cat $T.seq`
-	fi
-	exit 2
-fi
diff --git a/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh b/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh
new file mode 100755
index 000000000000..208be7d09a61
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Run SRCU-lockdep tests and report any that fail to meet expectations.
+#
+# Copyright (C) 2021 Meta Platforms, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+usage () {
+	echo "Usage: $scriptname optional arguments:"
+	echo "       --datestamp string"
+	exit 1
+}
+
+ds=`date +%Y.%m.%d-%H.%M.%S`-srcu_lockdep
+scriptname="$0"
+
+T="`mktemp -d ${TMPDIR-/tmp}/srcu_lockdep.sh.XXXXXX`"
+trap 'rm -rf $T' 0
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+while test $# -gt 0
+do
+	case "$1" in
+	--datestamp)
+		checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
+		ds=$2
+		shift
+		;;
+	*)
+		echo Unknown argument $1
+		usage
+		;;
+	esac
+	shift
+done
+
+nerrs=0
+
+# Test lockdep's handling of deadlocks.
+for d in 0 1
+do
+	for t in 0 1 2
+	do
+		for c in 1 2 3
+		do
+			err=
+			val=$((d*1000+t*10+c))
+			tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.test_srcu_lockdep=$val rcutorture.reader_flavor=0x2" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1
+			ret=$?
+			mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val"
+			if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config
+			then
+				echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario"
+				nerrs=$((nerrs+1))
+				err=1
+			fi
+			if test "$d" -ne 0 && test "$ret" -eq 0
+			then
+				err=1
+				echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+			fi
+			if test "$d" -eq 0 && test "$ret" -ne 0
+			then
+				err=1
+				echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+			fi
+			if test -n "$err"
+			then
+				grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep = " "$RCUTORTURE/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_lockdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+				cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+				nerrs=$((nerrs+1))
+			fi
+		done
+	done
+done
+
+# Test lockdep-enabled testing of mixed SRCU readers.
+for val in 0x1 0xf
+do
+	err=
+	tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.reader_flavor=$val" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1
+	ret=$?
+	mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val"
+	if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config
+	then
+		echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario"
+		nerrs=$((nerrs+1))
+		err=1
+	fi
+	if test "$val" -eq 0xf && test "$ret" -eq 0
+	then
+		err=1
+		echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+	fi
+	if test "$val" -eq 0x1 && test "$ret" -ne 0
+	then
+		err=1
+		echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+	fi
+	if test -n "$err"
+	then
+		grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep = " "$RCUTORTURE/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_lockdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+		cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
+		nerrs=$((nerrs+1))
+	fi
+done
+
+# Set up exit code.
+if test "$nerrs" -ne 0
+then
+	exit 1
+fi
+exit 0
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh
new file mode 100755
index 000000000000..a33ba109ef0b
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/bin/torture.sh
@@ -0,0 +1,831 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Run a series of torture tests, intended for overnight or
+# longer timeframes, and also for large systems.
+#
+# Usage: torture.sh [ options ]
+#
+# Copyright (C) 2020 Facebook, Inc.
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+scriptname=$0
+args="$*"
+
+RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
+PATH=${RCUTORTURE}/bin:$PATH; export PATH
+. functions.sh
+
+TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
+MAKE_ALLOTED_CPUS=$((TORTURE_ALLOTED_CPUS*2))
+SCALE_ALLOTED_CPUS=$((TORTURE_ALLOTED_CPUS/2))
+if test "$SCALE_ALLOTED_CPUS" -lt 1
+then
+	SCALE_ALLOTED_CPUS=1
+fi
+VERBOSE_BATCH_CPUS=$((TORTURE_ALLOTED_CPUS/16))
+if test "$VERBOSE_BATCH_CPUS" -lt 2
+then
+	VERBOSE_BATCH_CPUS=0
+fi
+
+# Machine architecture?  ("uname -p" is said to be less portable.)1
+thisarch="`uname -m`"
+if test "${thisarch}" = aarch64
+then
+	ifnotaarch64=no
+else
+	ifnotaarch64=yes
+fi
+
+# Configurations/scenarios.
+configs_rcutorture=
+configs_locktorture=
+configs_scftorture=
+kcsan_kmake_args=
+
+# Default compression, duration, and apportionment.
+compress_concurrency="`identify_qemu_vcpus`"
+duration_base=10
+duration_rcutorture_frac=7
+duration_locktorture_frac=1
+duration_scftorture_frac=2
+
+# "yes" or "no" parameters
+do_allmodconfig=yes
+do_rcutorture=yes
+do_locktorture=yes
+do_scftorture=yes
+do_rcuscale=yes
+do_refscale=yes
+do_kvfree=yes
+do_normal=yes
+explicit_normal=no
+do_kasan=yes
+do_kcsan=no
+do_clocksourcewd="${ifnotaarch64}"
+do_rt=yes
+do_rcutasksflavors="${ifnotaarch64}" # FIXME: Back to "yes" when SMP=n auto-avoided
+do_srcu_lockdep=yes
+do_rcu_rust=no
+
+# doyesno - Helper function for yes/no arguments
+function doyesno () {
+	if test "$1" = "$2"
+	then
+		echo yes
+	else
+		echo no
+	fi
+}
+
+usage () {
+	echo "Usage: $scriptname optional arguments:"
+	echo "       --compress-concurrency concurrency"
+	echo "       --configs-rcutorture \"config-file list w/ repeat factor (3*TINY01)\""
+	echo "       --configs-locktorture \"config-file list w/ repeat factor (10*LOCK01)\""
+	echo "       --configs-scftorture \"config-file list w/ repeat factor (2*CFLIST)\""
+	echo "       --do-all"
+	echo "       --do-allmodconfig / --do-no-allmodconfig / --no-allmodconfig"
+	echo "       --do-clocksourcewd / --do-no-clocksourcewd / --no-clocksourcewd"
+	echo "       --do-kasan / --do-no-kasan / --no-kasan"
+	echo "       --do-kcsan / --do-no-kcsan / --no-kcsan"
+	echo "       --do-kvfree / --do-no-kvfree / --no-kvfree"
+	echo "       --do-locktorture / --do-no-locktorture / --no-locktorture"
+	echo "       --do-none"
+	echo "       --do-normal / --do-no-normal / --no-normal"
+	echo "       --do-rcuscale / --do-no-rcuscale / --no-rcuscale"
+	echo "       --do-rcutasksflavors / --do-no-rcutasksflavors / --no-rcutasksflavors"
+	echo "       --do-rcutorture / --do-no-rcutorture / --no-rcutorture"
+	echo "       --do-refscale / --do-no-refscale / --no-refscale"
+	echo "       --do-rt / --do-no-rt / --no-rt"
+	echo "       --do-rcu-rust / --do-no-rcu-rust / --no-rcu-rust"
+	echo "       --do-scftorture / --do-no-scftorture / --no-scftorture"
+	echo "       --do-srcu-lockdep / --do-no-srcu-lockdep / --no-srcu-lockdep"
+	echo "       --duration [ <minutes> | <hours>h | <days>d ]"
+	echo "       --guest-cpu-limit N"
+	echo "       --kcsan-kmake-arg kernel-make-arguments"
+	exit 1
+}
+
+while test $# -gt 0
+do
+	case "$1" in
+	--compress-concurrency)
+		checkarg --compress-concurrency "(concurrency level)" $# "$2" '^[0-9][0-9]*$' '^error'
+		compress_concurrency=$2
+		shift
+		;;
+	--config-rcutorture|--configs-rcutorture)
+		checkarg --configs-rcutorture "(list of config files)" "$#" "$2" '^[^/]\+$' '^--'
+		configs_rcutorture="$configs_rcutorture $2"
+		shift
+		;;
+	--config-locktorture|--configs-locktorture)
+		checkarg --configs-locktorture "(list of config files)" "$#" "$2" '^[^/]\+$' '^--'
+		configs_locktorture="$configs_locktorture $2"
+		shift
+		;;
+	--config-scftorture|--configs-scftorture)
+		checkarg --configs-scftorture "(list of config files)" "$#" "$2" '^[^/]\+$' '^--'
+		configs_scftorture="$configs_scftorture $2"
+		shift
+		;;
+	--do-all|--doall)
+		do_allmodconfig=yes
+		do_rcutasksflavors="${ifnotaarch64}" # FIXME: Back to "yes" when SMP=n auto-avoided
+		do_rcutorture=yes
+		do_locktorture=yes
+		do_scftorture=yes
+		do_rcuscale=yes
+		do_refscale=yes
+		do_rt=yes
+		do_kvfree=yes
+		do_normal=yes
+		explicit_normal=no
+		do_kasan=yes
+		do_kcsan=yes
+		do_clocksourcewd="${ifnotaarch64}"
+		do_srcu_lockdep=yes
+		;;
+	--do-allmodconfig|--do-no-allmodconfig|--no-allmodconfig)
+		do_allmodconfig=`doyesno "$1" --do-allmodconfig`
+		;;
+	--do-clocksourcewd|--do-no-clocksourcewd|--no-clocksourcewd)
+		do_clocksourcewd=`doyesno "$1" --do-clocksourcewd`
+		;;
+	--do-kasan|--do-no-kasan|--no-kasan)
+		do_kasan=`doyesno "$1" --do-kasan`
+		;;
+	--do-kcsan|--do-no-kcsan|--no-kcsan)
+		do_kcsan=`doyesno "$1" --do-kcsan`
+		;;
+	--do-kvfree|--do-no-kvfree|--no-kvfree)
+		do_kvfree=`doyesno "$1" --do-kvfree`
+		;;
+	--do-locktorture|--do-no-locktorture|--no-locktorture)
+		do_locktorture=`doyesno "$1" --do-locktorture`
+		;;
+	--do-none|--donone)
+		do_allmodconfig=no
+		do_rcutasksflavors=no
+		do_rcutorture=no
+		do_locktorture=no
+		do_scftorture=no
+		do_rcuscale=no
+		do_refscale=no
+		do_rt=no
+		do_kvfree=no
+		do_normal=no
+		explicit_normal=no
+		do_kasan=no
+		do_kcsan=no
+		do_clocksourcewd=no
+		do_srcu_lockdep=no
+		;;
+	--do-normal|--do-no-normal|--no-normal)
+		do_normal=`doyesno "$1" --do-normal`
+		explicit_normal=yes
+		;;
+	--do-rcuscale|--do-no-rcuscale|--no-rcuscale)
+		do_rcuscale=`doyesno "$1" --do-rcuscale`
+		;;
+	--do-rcutasksflavors|--do-no-rcutasksflavors|--no-rcutasksflavors)
+		do_rcutasksflavors=`doyesno "$1" --do-rcutasksflavors`
+		;;
+	--do-rcutorture|--do-no-rcutorture|--no-rcutorture)
+		do_rcutorture=`doyesno "$1" --do-rcutorture`
+		;;
+	--do-refscale|--do-no-refscale|--no-refscale)
+		do_refscale=`doyesno "$1" --do-refscale`
+		;;
+	--do-rt|--do-no-rt|--no-rt)
+		do_rt=`doyesno "$1" --do-rt`
+		;;
+	--do-rcu-rust|--do-no-rcu-rust|--no-rcu-rust)
+		do_rcu_rust=`doyesno "$1" --do-rcu-rust`
+		;;
+	--do-scftorture|--do-no-scftorture|--no-scftorture)
+		do_scftorture=`doyesno "$1" --do-scftorture`
+		;;
+	--do-srcu-lockdep|--do-no-srcu-lockdep|--no-srcu-lockdep)
+		do_srcu_lockdep=`doyesno "$1" --do-srcu-lockdep`
+		;;
+	--duration)
+		checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(m\|h\|d\|\)$' '^error'
+		mult=1
+		if echo "$2" | grep -q 'm$'
+		then
+			mult=1
+		elif echo "$2" | grep -q 'h$'
+		then
+			mult=60
+		elif echo "$2" | grep -q 'd$'
+		then
+			mult=1440
+		fi
+		ts=`echo $2 | sed -e 's/[smhd]$//'`
+		duration_base=$(($ts*mult))
+		shift
+		;;
+	--guest-cpu-limit|--guest-cpu-lim)
+		checkarg --guest-cpu-limit "(number)" "$#" "$2" '^[0-9]*$' '^--'
+		if (("$2" <= "$TORTURE_ALLOTED_CPUS" / 2))
+		then
+			SCALE_ALLOTED_CPUS="$2"
+			VERBOSE_BATCH_CPUS="$((SCALE_ALLOTED_CPUS/8))"
+			if (("$VERBOSE_BATCH_CPUS" < 2))
+			then
+				VERBOSE_BATCH_CPUS=0
+			fi
+		else
+			echo "Ignoring value of $2 for --guest-cpu-limit which is greater than (("$TORTURE_ALLOTED_CPUS" / 2))."
+		fi
+		shift
+		;;
+	--kcsan-kmake-arg|--kcsan-kmake-args)
+		checkarg --kcsan-kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
+		kcsan_kmake_args="`echo "$kcsan_kmake_args $2" | sed -e 's/^ *//' -e 's/ *$//'`"
+		shift
+		;;
+	*)
+		echo Unknown argument $1
+		usage
+		;;
+	esac
+	shift
+done
+
+ds="`date +%Y.%m.%d-%H.%M.%S`-torture"
+startdate="`date`"
+starttime="`get_starttime`"
+
+T="`mktemp -d ${TMPDIR-/tmp}/torture.sh.XXXXXX`"
+trap 'rm -rf $T' 0 2
+
+echo " --- " $scriptname $args | tee -a $T/log
+echo " --- Results directory: " $ds | tee -a $T/log
+
+if test "$do_normal" = "no" && test "$do_kasan" = "no" && test "$do_kcsan" = "no"
+then
+	# Match old scripts so that "--do-none --do-rcutorture" does
+	# normal rcutorture testing, but no KASAN or KCSAN testing.
+	if test $explicit_normal = yes
+	then
+		echo " --- Everything disabled, so explicit --do-normal overridden" | tee -a $T/log
+	fi
+	do_normal=yes
+fi
+
+# Calculate rcutorture defaults and apportion time
+if test -z "$configs_rcutorture"
+then
+	configs_rcutorture=CFLIST
+fi
+duration_rcutorture=$((duration_base*duration_rcutorture_frac/10))
+if test "$duration_rcutorture" -eq 0 && test "$do_locktorture" = "yes"
+then
+	echo " --- Zero time for rcutorture, disabling" | tee -a $T/log
+	do_rcutorture=no
+fi
+
+# Calculate locktorture defaults and apportion time
+if test -z "$configs_locktorture"
+then
+	configs_locktorture=CFLIST
+fi
+duration_locktorture=$((duration_base*duration_locktorture_frac/10))
+if test "$duration_locktorture" -eq 0 && test "$do_locktorture" = "yes"
+then
+	echo " --- Zero time for locktorture, disabling" | tee -a $T/log
+	do_locktorture=no
+fi
+
+# Calculate scftorture defaults and apportion time
+if test -z "$configs_scftorture"
+then
+	configs_scftorture=CFLIST
+fi
+duration_scftorture=$((duration_base*duration_scftorture_frac/10))
+if test "$duration_scftorture" -eq 0 && test "$do_scftorture" = "yes"
+then
+	echo " --- Zero time for scftorture, disabling" | tee -a $T/log
+	do_scftorture=no
+fi
+
+# CONFIG_EXPERT=y is currently required for arm64 KCSAN runs.
+kcsan_expert=
+if test "${thisarch}" = aarch64
+then
+	kcsan_expert="CONFIG_EXPERT=y"
+fi
+
+touch $T/failures
+touch $T/successes
+
+# torture_one - Does a single kvm.sh run.
+#
+# Usage:
+#	torture_bootargs="[ kernel boot arguments ]"
+#	torture_one flavor [ kvm.sh arguments ]
+#
+# Note that "flavor" is an arbitrary string.  Supply --torture if needed.
+# Note that quoting is problematic.  So on the command line, pass multiple
+# values with multiple kvm.sh argument instances.
+function torture_one {
+	local cur_bootargs=
+	local boottag=
+
+	echo " --- $curflavor:" Start `date` | tee -a $T/log
+	if test -n "$torture_bootargs"
+	then
+		boottag="--bootargs"
+		cur_bootargs="$torture_bootargs"
+	fi
+	"$@" $boottag "$cur_bootargs" --datestamp "$ds/results-$curflavor" > $T/$curflavor.out 2>&1
+	retcode=$?
+	resdir="`grep '^Results directory: ' $T/$curflavor.out | tail -1 | sed -e 's/^Results directory: //'`"
+	if test -z "$resdir"
+	then
+		cat $T/$curflavor.out | tee -a $T/log
+		echo retcode=$retcode | tee -a $T/log
+	else
+		echo $resdir > $T/last-resdir
+	fi
+	if test "$retcode" == 0
+	then
+		echo "$curflavor($retcode)" $resdir >> $T/successes
+	else
+		echo "$curflavor($retcode)" $resdir >> $T/failures
+	fi
+}
+
+# torture_set - Does a set of tortures with and without KASAN and KCSAN.
+#
+# Usage:
+#	torture_bootargs="[ kernel boot arguments ]"
+#	torture_set flavor [ kvm.sh arguments ]
+#
+# Note that "flavor" is an arbitrary string that does not affect kvm.sh
+# in any way.  So also supply --torture if you need something other than
+# the default.
+function torture_set {
+	local cur_kcsan_kmake_args=
+	local kcsan_kmake_tag=
+	local flavor=$1
+	shift
+	if test "$do_normal" = "yes"
+	then
+		curflavor=$flavor
+		torture_one "$@"
+		if test -e $T/last-resdir
+		then
+			mv $T/last-resdir $T/last-resdir-nodebug || :
+		fi
+	fi
+	if test "$do_kasan" = "yes"
+	then
+		curflavor=${flavor}-kasan
+		torture_one "$@" --kasan
+		if test -e $T/last-resdir
+		then
+			mv $T/last-resdir $T/last-resdir-kasan || :
+		fi
+	fi
+	if test "$do_kcsan" = "yes"
+	then
+		curflavor=${flavor}-kcsan
+		if test -n "$kcsan_kmake_args"
+		then
+			kcsan_kmake_tag="--kmake-args"
+			cur_kcsan_kmake_args="$kcsan_kmake_args"
+		fi
+		chk_rdr_state=
+		if test "${flavor}" = rcutorture
+		then
+			chk_rdr_state="CONFIG_RCU_TORTURE_TEST_CHK_RDR_STATE=y"
+		fi
+		torture_one "$@" --kconfig "CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y ${kcsan_expert} ${chk_rdr_state}" $kcsan_kmake_tag $cur_kcsan_kmake_args --kcsan
+		if test -e $T/last-resdir
+		then
+			mv $T/last-resdir $T/last-resdir-kcsan || :
+		fi
+	fi
+}
+
+# make allmodconfig
+if test "$do_allmodconfig" = "yes"
+then
+	echo " --- allmodconfig:" Start `date` | tee -a $T/log
+	amcdir="tools/testing/selftests/rcutorture/res/$ds/allmodconfig"
+	mkdir -p "$amcdir"
+	mktestid.sh "$amcdir"
+	echo " --- make clean" | tee $amcdir/log > "$amcdir/Make.out" 2>&1
+	make -j$MAKE_ALLOTED_CPUS clean >> "$amcdir/Make.out" 2>&1
+	retcode=$?
+	buildphase='"make clean"'
+	if test "$retcode" -eq 0
+	then
+		echo " --- make allmodconfig" | tee -a $amcdir/log >> "$amcdir/Make.out" 2>&1
+		cp .config $amcdir
+		make -j$MAKE_ALLOTED_CPUS allmodconfig >> "$amcdir/Make.out" 2>&1
+		retcode=$?
+		buildphase='"make allmodconfig"'
+	fi
+	if test "$retcode" -eq 0
+	then
+		echo " --- make " | tee -a $amcdir/log >> "$amcdir/Make.out" 2>&1
+		make -j$MAKE_ALLOTED_CPUS >> "$amcdir/Make.out" 2>&1
+		retcode="$?"
+		echo $retcode > "$amcdir/Make.exitcode"
+		if grep -E -q "Stop|ERROR|Error|error:|warning:" < "$amcdir/Make.out"
+		then
+			retcode=99
+		fi
+		buildphase='"make"'
+	fi
+	if test "$retcode" -eq 0
+	then
+		echo "allmodconfig($retcode)" $amcdir >> $T/successes
+		echo Success >> $amcdir/log
+	else
+		echo "allmodconfig($retcode)" $amcdir >> $T/failures
+		echo " --- allmodconfig Test summary:" >> $amcdir/log
+		echo " --- Summary: Exit code $retcode from $buildphase, see Make.out" >> $amcdir/log
+	fi
+fi
+
+# Test building RCU Tasks flavors in isolation, both SMP and !SMP
+if test "$do_rcutasksflavors" = "yes"
+then
+	echo " --- rcutasksflavors:" Start `date` | tee -a $T/log
+	rtfdir="tools/testing/selftests/rcutorture/res/$ds/results-rcutasksflavors"
+	mkdir -p "$rtfdir"
+	cat > $T/rcutasksflavors << __EOF__
+#CHECK#CONFIG_TASKS_RCU=n
+#CHECK#CONFIG_TASKS_RUDE_RCU=n
+#CHECK#CONFIG_TASKS_TRACE_RCU=n
+__EOF__
+	for flavor in CONFIG_TASKS_RCU CONFIG_TASKS_RUDE_RCU CONFIG_TASKS_TRACE_RCU
+	do
+		forceflavor="`echo $flavor | sed -e 's/^CONFIG/CONFIG_FORCE/'`"
+		deselectedflavors="`grep -v $flavor $T/rcutasksflavors | tr '\012' ' ' | tr -s ' ' | sed -e 's/ *$//'`"
+		echo " --- Running RCU Tasks Trace flavor $flavor `date`" >> $rtfdir/log
+		tools/testing/selftests/rcutorture/bin/kvm.sh --datestamp "$ds/results-rcutasksflavors/$flavor" --buildonly --configs "TINY01 TREE04" --kconfig "CONFIG_RCU_EXPERT=y CONFIG_RCU_SCALE_TEST=y CONFIG_KPROBES=n CONFIG_RCU_TRACE=n CONFIG_TRACING=n CONFIG_BLK_DEV_IO_TRACE=n CONFIG_UPROBE_EVENTS=n $forceflavor=y $deselectedflavors" --trust-make > $T/$flavor.out 2>&1
+		retcode=$?
+		if test "$retcode" -ne 0
+		then
+			break
+		fi
+	done
+	if test "$retcode" -eq 0
+	then
+		echo "rcutasksflavors($retcode)" $rtfdir >> $T/successes
+		echo Success >> $rtfdir/log
+	else
+		echo "rcutasksflavors($retcode)" $rtfdir >> $T/failures
+		echo " --- rcutasksflavors Test summary:" >> $rtfdir/log
+		echo " --- Summary: Exit code $retcode from $flavor, see Make.out" >> $rtfdir/log
+	fi
+fi
+
+# --torture rcu
+if test "$do_rcutorture" = "yes"
+then
+	torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000"
+	torture_set "rcutorture" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration "$duration_rcutorture" --configs "$configs_rcutorture" --trust-make
+fi
+
+if test "$do_locktorture" = "yes"
+then
+	torture_bootargs="torture.disable_onoff_at_boot"
+	torture_set "locktorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture lock --allcpus --duration "$duration_locktorture" --configs "$configs_locktorture" --trust-make
+fi
+
+if test "$do_scftorture" = "yes"
+then
+	# Scale memory based on the number of CPUs.
+	scfmem=$((3+SCALE_ALLOTED_CPUS/16))
+	torture_bootargs="scftorture.nthreads=$SCALE_ALLOTED_CPUS torture.disable_onoff_at_boot csdlock_debug=1"
+	torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$SCALE_ALLOTED_CPUS" --memory ${scfmem}G --trust-make
+fi
+
+if test "$do_rt" = "yes"
+then
+	# In both runs, disable testing of RCU priority boosting because
+	# -rt doesn't like its interaction with testing of callback
+	# flooding.
+
+	# With all post-boot grace periods forced to normal (default for PREEMPT_RT).
+	torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 rcutorture.test_boost=0 rcutorture.preempt_duration=0"
+	torture_set "rcurttorture" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration "$duration_rcutorture" --configs "TREE03" --kconfig "CONFIG_PREEMPT_RT=y CONFIG_EXPERT=y CONFIG_HZ_PERIODIC=n CONFIG_NO_HZ_IDLE=y CONFIG_RCU_NOCB_CPU=y" --trust-make
+
+	# With all post-boot grace periods forced to expedited.
+	torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 rcutorture.test_boost=0 rcupdate.rcu_normal_after_boot=0 rcupdate.rcu_expedited=1 rcutorture.preempt_duration=0"
+	torture_set "rcurttorture-exp" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration "$duration_rcutorture" --configs "TREE03" --kconfig "CONFIG_PREEMPT_RT=y CONFIG_EXPERT=y CONFIG_HZ_PERIODIC=n CONFIG_NO_HZ_FULL=y CONFIG_RCU_NOCB_CPU=y" --trust-make
+fi
+
+if test "$do_rcu_rust" = "yes"
+then
+	echo " --- do-rcu-rust:" Start `date` | tee -a $T/log
+	rrdir="tools/testing/selftests/rcutorture/res/$ds/results-rcu-rust"
+	mkdir -p "$rrdir"
+	mktestid.sh "$rrdir"
+	echo " --- make LLVM=1 rustavailable " | tee -a $rrdir/log > $rrdir/rustavailable.out
+	make LLVM=1 rustavailable > $T/rustavailable.out 2>&1
+	retcode=$?
+	echo $retcode > $rrdir/rustavailable.exitcode
+	cat $T/rustavailable.out | tee -a $rrdir/log >> $rrdir/rustavailable.out 2>&1
+	buildphase=rustavailable
+	if test "$retcode" -eq 0
+	then
+		echo " --- Running 'make mrproper' in order to run kunit." | tee -a $rrdir/log > $rrdir/mrproper.out
+		make mrproper > $rrdir/mrproper.out 2>&1
+		retcode=$?
+		echo $retcode > $rrdir/mrproper.exitcode
+		buildphase=mrproper
+	fi
+	if test "$retcode" -eq 0
+	then
+		echo " --- Running rust_doctests_kernel." | tee -a $rrdir/log > $rrdir/rust_doctests_kernel.out
+		./tools/testing/kunit/kunit.py run --make_options LLVM=1 --make_options CLIPPY=1 --arch arm64 --kconfig_add CONFIG_SMP=y --kconfig_add CONFIG_WERROR=y --kconfig_add CONFIG_RUST=y rust_doctests_kernel >> $rrdir/rust_doctests_kernel.out 2>&1
+		# @@@ Remove "--arch arm64" in order to test on native architecture?
+		# @@@ Analyze $rrdir/rust_doctests_kernel.out contents?
+		retcode=$?
+		echo $retcode > $rrdir/rust_doctests_kernel.exitcode
+		buildphase=rust_doctests_kernel
+	fi
+	if test "$retcode" -eq 0
+	then
+		echo "rcu-rust($retcode)" $rrdir >> $T/successes
+		echo Success >> $rrdir/log
+	else
+		echo "rcu-rust($retcode)" $rrdir >> $T/failures
+		echo " --- rcu-rust Test summary:" >> $rrdir/log
+		echo " --- Summary: Exit code $retcode from $buildphase, see $rrdir/$buildphase.out" >> $rrdir/log
+	fi
+fi
+
+if test "$do_srcu_lockdep" = "yes"
+then
+	echo " --- do-srcu-lockdep:" Start `date` | tee -a $T/log
+	tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh --datestamp "$ds/results-srcu-lockdep" > $T/srcu_lockdep.sh.out 2>&1
+	retcode=$?
+	cp $T/srcu_lockdep.sh.out "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep/log"
+	if test "$retcode" -eq 0
+	then
+		echo "srcu_lockdep($retcode)" "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep" >> $T/successes
+		echo Success >> "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep/log"
+	else
+		echo "srcu_lockdep($retcode)" "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep" >> $T/failures
+		echo " --- srcu_lockdep Test Summary:" >> "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep/log"
+		echo " --- Summary: Exit code $retcode from srcu_lockdep.sh, see ds/results-srcu-lockdep" >> "tools/testing/selftests/rcutorture/res/$ds/results-srcu-lockdep/log"
+	fi
+fi
+
+if test "$do_refscale" = yes
+then
+	primlist="`grep '\.name[ 	]*=' kernel/rcu/refscale.c | sed -e 's/^[^"]*"//' -e 's/".*$//'`"
+else
+	primlist=
+fi
+firsttime=1
+do_kasan_save="$do_kasan"
+do_kcsan_save="$do_kcsan"
+for prim in $primlist
+do
+	if test -n "$firsttime"
+	then
+		torture_bootargs="refscale.scale_type="$prim" refscale.nreaders=$SCALE_ALLOTED_CPUS refscale.loops=10000 refscale.holdoff=20 torture.disable_onoff_at_boot"
+		torture_set "refscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture refscale --allcpus --duration 5 --kconfig "CONFIG_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$SCALE_ALLOTED_CPUS" --bootargs "refscale.verbose_batched=$VERBOSE_BATCH_CPUS torture.verbose_sleep_frequency=8 torture.verbose_sleep_duration=$VERBOSE_BATCH_CPUS" --trust-make
+		mv $T/last-resdir-nodebug $T/first-resdir-nodebug || :
+		if test -f "$T/last-resdir-kasan"
+		then
+			mv $T/last-resdir-kasan $T/first-resdir-kasan || :
+		fi
+		if test -f "$T/last-resdir-kcsan"
+		then
+			mv $T/last-resdir-kcsan $T/first-resdir-kcsan || :
+		fi
+		firsttime=
+		do_kasan=
+		do_kcsan=
+	else
+		torture_bootargs=
+		for i in $T/first-resdir-*
+		do
+			case "$i" in
+			*-nodebug)
+				torture_suffix=
+				;;
+			*-kasan)
+				torture_suffix="-kasan"
+				;;
+			*-kcsan)
+				torture_suffix="-kcsan"
+				;;
+			esac
+			torture_set "refscale-$prim$torture_suffix" tools/testing/selftests/rcutorture/bin/kvm-again.sh "`cat "$i"`" --duration 5 --bootargs "refscale.scale_type=$prim"
+		done
+	fi
+done
+do_kasan="$do_kasan_save"
+do_kcsan="$do_kcsan_save"
+
+if test "$do_rcuscale" = yes
+then
+	primlist="`grep '\.name[ 	]*=' kernel/rcu/rcuscale.c | sed -e 's/^[^"]*"//' -e 's/".*$//'`"
+else
+	primlist=
+fi
+firsttime=1
+do_kasan_save="$do_kasan"
+do_kcsan_save="$do_kcsan"
+for prim in $primlist
+do
+	if test -n "$firsttime"
+	then
+		torture_bootargs="rcuscale.scale_type="$prim" rcuscale.nwriters=$SCALE_ALLOTED_CPUS rcuscale.holdoff=20 torture.disable_onoff_at_boot"
+		torture_set "rcuscale-$prim" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration 5 --kconfig "CONFIG_TASKS_TRACE_RCU=y CONFIG_NR_CPUS=$SCALE_ALLOTED_CPUS" --trust-make
+		mv $T/last-resdir-nodebug $T/first-resdir-nodebug || :
+		if test -f "$T/last-resdir-kasan"
+		then
+			mv $T/last-resdir-kasan $T/first-resdir-kasan || :
+		fi
+		if test -f "$T/last-resdir-kcsan"
+		then
+			mv $T/last-resdir-kcsan $T/first-resdir-kcsan || :
+		fi
+		firsttime=
+		do_kasan=
+		do_kcsan=
+	else
+		torture_bootargs=
+		for i in $T/first-resdir-*
+		do
+			case "$i" in
+			*-nodebug)
+				torture_suffix=
+				;;
+			*-kasan)
+				torture_suffix="-kasan"
+				;;
+			*-kcsan)
+				torture_suffix="-kcsan"
+				;;
+			esac
+			torture_set "rcuscale-$prim$torture_suffix" tools/testing/selftests/rcutorture/bin/kvm-again.sh "`cat "$i"`" --duration 5 --bootargs "rcuscale.scale_type=$prim"
+		done
+	fi
+done
+do_kasan="$do_kasan_save"
+do_kcsan="$do_kcsan_save"
+
+if test "$do_kvfree" = "yes"
+then
+	torture_bootargs="rcuscale.kfree_rcu_test=1 rcuscale.kfree_nthreads=16 rcuscale.holdoff=20 rcuscale.kfree_loops=10000 torture.disable_onoff_at_boot"
+	torture_set "rcuscale-kvfree" tools/testing/selftests/rcutorture/bin/kvm.sh --torture rcuscale --allcpus --duration $duration_rcutorture --kconfig "CONFIG_NR_CPUS=$SCALE_ALLOTED_CPUS" --memory 2G --trust-make
+fi
+
+if test "$do_clocksourcewd" = "yes"
+then
+	torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 tsc=watchdog"
+	torture_set "clocksourcewd-1" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 45s --configs TREE03 --kconfig "CONFIG_TEST_CLOCKSOURCE_WATCHDOG=y" --trust-make
+
+	torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 tsc=watchdog"
+	torture_set "clocksourcewd-2" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 45s --configs TREE03 --kconfig "CONFIG_TEST_CLOCKSOURCE_WATCHDOG=y" --trust-make
+
+	# In case our work is already done...
+	if test "$do_rcutorture" != "yes"
+	then
+		torture_bootargs="rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot rcupdate.rcu_task_stall_timeout=30000 tsc=watchdog"
+		torture_set "clocksourcewd-3" tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 45s --configs TREE03 --trust-make
+	fi
+fi
+
+echo " --- " $scriptname $args
+echo " --- " Done `date` | tee -a $T/log
+ret=0
+nsuccesses=0
+echo SUCCESSES: | tee -a $T/log
+if test -s "$T/successes"
+then
+	cat "$T/successes" | tee -a $T/log
+	nsuccesses="`wc -l "$T/successes" | awk '{ print $1 }'`"
+fi
+nfailures=0
+echo FAILURES: | tee -a $T/log
+if test -s "$T/failures"
+then
+	awk < "$T/failures" -v sq="'" '
+	{
+		print "echo " sq $0 sq;
+		if ($2 != "")
+			print "sed -e " sq "1,/^ --- .* Test summary:$/d" sq " " $2 "/log | grep Summary: | sed -e " sq "s/^[^S]*/  /" sq;
+		else
+			print "echo " sq "  " sq "Run failed to produce results directory.";
+	}' | sh | tee -a $T/log | tee "$T/failuresum"
+	nfailures="`wc -l "$T/failures" | awk '{ print $1 }'`"
+	grep "^  Summary: " "$T/failuresum" |
+		grep -v '^  Summary: Bugs: [0-9]* (all bugs kcsan)$' > "$T/nonkcsan"
+	if test -s "$T/nonkcsan"
+	then
+		nonkcsanbug="yes"
+	fi
+	ret=2
+fi
+if test "$do_kcsan" = "yes" && test -e tools/testing/selftests/rcutorture/res/$ds
+then
+	TORTURE_KCONFIG_KCSAN_ARG=1 tools/testing/selftests/rcutorture/bin/kcsan-collapse.sh tools/testing/selftests/rcutorture/res/$ds > tools/testing/selftests/rcutorture/res/$ds/kcsan.sum
+fi
+echo Started at $startdate, ended at `date`, duration `get_starttime_duration $starttime`. | tee -a $T/log
+echo Summary: Successes: $nsuccesses Failures: $nfailures. | tee -a $T/log
+tdir="`cat $T/successes $T/failures | awk 'NF > 1 { print $NF }' | head -1 | sed -e 's,/[^/]\+/*$,,'`"
+if test -n "$tdir"
+then
+	find "$tdir" -name 'ConfigFragment.diags' -print > $T/configerrors
+	find "$tdir" -name 'Make.out.diags' -print > $T/builderrors
+fi
+if test -s "$T/configerrors"
+then
+	echo "  Scenarios with .config errors: `wc -l "$T/configerrors" | awk '{ print $1 }'`"
+	nonkcsanbug="yes"
+fi
+if test -s "$T/builderrors"
+then
+	echo "  Scenarios with build errors: `wc -l "$T/builderrors" | awk '{ print $1 }'`"
+	nonkcsanbug="yes"
+fi
+if test -z "$nonkcsanbug" && test -s "$T/failuresum"
+then
+	echo "  All bugs were KCSAN failures."
+fi
+if test -n "$tdir" && test $compress_concurrency -gt 0
+then
+	# KASAN vmlinux files can approach 1GB in size, so compress them.
+	echo Looking for K[AC]SAN files to compress: `date` > "$tdir/log-xz" 2>&1
+	find "$tdir" -type d -name '*-k[ac]san' -print > $T/xz-todo-all
+	find "$tdir" -type f -name 're-run' -print | sed -e 's,/re-run,,' |
+		grep -e '-k[ac]san$' > $T/xz-todo-copy
+	sort $T/xz-todo-all $T/xz-todo-copy | uniq -u > $T/xz-todo
+	ncompresses=0
+	batchno=1
+	if test -s $T/xz-todo
+	then
+		for i in `cat $T/xz-todo`
+		do
+			find $i -name 'vmlinux*' -print
+		done | wc -l | awk '{ print $1 }' > $T/xz-todo-count
+		n2compress="`cat $T/xz-todo-count`"
+		echo Size before compressing $n2compress files: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
+		for i in `cat $T/xz-todo`
+		do
+			echo Compressing vmlinux files in ${i}: `date` >> "$tdir/log-xz" 2>&1
+			for j in $i/*/vmlinux
+			do
+				xz "$j" >> "$tdir/log-xz" 2>&1 &
+				ncompresses=$((ncompresses+1))
+				if test $ncompresses -ge $compress_concurrency
+				then
+					echo Waiting for batch $batchno of $ncompresses compressions `date` | tee -a "$tdir/log-xz" | tee -a $T/log
+					wait
+					ncompresses=0
+					batchno=$((batchno+1))
+				fi
+			done
+		done
+		if test $ncompresses -gt 0
+		then
+			echo Waiting for final batch $batchno of $ncompresses compressions `date` | tee -a "$tdir/log-xz" | tee -a $T/log
+		fi
+		wait
+		if test -s $T/xz-todo-copy
+		then
+			# The trick here is that we need corresponding
+			# vmlinux files from corresponding scenarios.
+			echo Linking vmlinux.xz files to re-use scenarios `date` | tee -a "$tdir/log-xz" | tee -a $T/log
+			dirstash="`pwd`"
+			for i in `cat $T/xz-todo-copy`
+			do
+				cd $i
+				find . -name vmlinux -print > $T/xz-todo-copy-vmlinux
+				for v in `cat $T/xz-todo-copy-vmlinux`
+				do
+					rm -f "$v"
+					cp -l `cat $i/re-run`/"$i/$v".xz "`dirname "$v"`"
+				done
+				cd "$dirstash"
+			done
+		fi
+		echo Size after compressing $n2compress files: `du -sh $tdir | awk '{ print $1 }'` `date` 2>&1 | tee -a "$tdir/log-xz" | tee -a $T/log
+		echo Total duration `get_starttime_duration $starttime`. | tee -a $T/log
+	else
+		echo No compression needed: `date` >> "$tdir/log-xz" 2>&1
+	fi
+fi
+if test -n "$tdir"
+then
+	cp $T/log "$tdir"
+fi
+exit $ret
diff --git a/tools/testing/selftests/rcutorture/configs/lock/CFLIST b/tools/testing/selftests/rcutorture/configs/lock/CFLIST
index 6910b7370761..28e23d05d5a5 100644
--- a/tools/testing/selftests/rcutorture/configs/lock/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/lock/CFLIST
@@ -1,4 +1,9 @@
 LOCK01
 LOCK02
 LOCK03
-LOCK04
-\ No newline at end of file
+LOCK04
+LOCK05
+LOCK06
+LOCK07
+LOCK08
+LOCK09
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK05 b/tools/testing/selftests/rcutorture/configs/lock/LOCK05
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK05
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot
new file mode 100644
index 000000000000..8ac37307c987
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK05.boot
@@ -0,0 +1 @@
+locktorture.torture_type=rtmutex_lock
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK06 b/tools/testing/selftests/rcutorture/configs/lock/LOCK06
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK06
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot
new file mode 100644
index 000000000000..f92219cd4ad9
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK06.boot
@@ -0,0 +1 @@
+locktorture.torture_type=percpu_rwsem_lock
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK07 b/tools/testing/selftests/rcutorture/configs/lock/LOCK07
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK07
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK07.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK07.boot
new file mode 100644
index 000000000000..97dadd1a9e45
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK07.boot
@@ -0,0 +1 @@
+locktorture.torture_type=ww_mutex_lock
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK08 b/tools/testing/selftests/rcutorture/configs/lock/LOCK08
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK08
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK08.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK08.boot
new file mode 100644
index 000000000000..b8b6caebb89e
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK08.boot
@@ -0,0 +1 @@
+locktorture.torture_type=mutex_lock locktorture.nested_locks=8
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK09 b/tools/testing/selftests/rcutorture/configs/lock/LOCK09
new file mode 100644
index 000000000000..1d1da1477fc3
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK09
@@ -0,0 +1,6 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
diff --git a/tools/testing/selftests/rcutorture/configs/lock/LOCK09.boot b/tools/testing/selftests/rcutorture/configs/lock/LOCK09.boot
new file mode 100644
index 000000000000..fd5eff148a93
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/lock/LOCK09.boot
@@ -0,0 +1 @@
+locktorture.torture_type=rtmutex_lock locktorture.nested_locks=8
diff --git a/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh
index 252aae618984..e7bb32709d78 100644
--- a/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/lock/ver_functions.sh
@@ -1,24 +1,11 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Kernel-version-dependent shell functions for the rest of the scripts.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2014
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 # locktorture_param_onoff bootparam-string config-file
 #
@@ -35,9 +22,9 @@ locktorture_param_onoff () {
 #
 # Adds per-version torture-module parameters to kernels supporting them.
 per_version_boot_params () {
-	echo $1 `locktorture_param_onoff "$1" "$2"` \
+	echo	`locktorture_param_onoff "$1" "$2"` \
 		locktorture.stat_interval=15 \
 		locktorture.shutdown_secs=$3 \
-		locktorture.torture_runnable=1 \
-		locktorture.verbose=1
+		locktorture.verbose=1 \
+		$1
 }
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED
index 48d8a245c7fa..7d75f4b94943 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED
@@ -5,3 +5,6 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
+CONFIG_RCU_TORTURE_TEST_CHK_RDR_STATE=y
+CONFIG_RCU_TORTURE_TEST_LOG_CPU=y
+CONFIG_RCU_TORTURE_TEST_LOG_GP=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST
new file mode 100644
index 000000000000..22d598f9cabe
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST
@@ -0,0 +1,17 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=16
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
+#CHECK#CONFIG_PREEMPT_RCU=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_NO_HZ_IDLE=n
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_TRACE=y
+CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST.boot b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST.boot
new file mode 100644
index 000000000000..84f6bb98ce99
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED-BOOST.boot
@@ -0,0 +1,8 @@
+rcutorture.test_boost=2
+rcutorture.stutter=0
+rcutree.gp_preinit_delay=12
+rcutree.gp_init_delay=3
+rcutree.gp_cleanup_delay=3
+rcutree.kthread_prio=2
+threadirqs
+rcutree.use_softirq=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot
index 6804f9dcfc1b..be7728db42fd 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/BUSTED.boot
@@ -1 +1 @@
-rcutorture.torture_type=rcu_busted
+rcutorture.torture_type=busted
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
index a3a1a05a2b5c..98b6175e5aa0 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFLIST
@@ -3,14 +3,17 @@ TREE02
 TREE03
 TREE04
 TREE05
-TREE06
 TREE07
-TREE08
 TREE09
 SRCU-N
 SRCU-P
+SRCU-T
+SRCU-U
 TINY01
 TINY02
 TASKS01
 TASKS02
 TASKS03
+RUDE01
+TRACE01
+TRACE02
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
index f824b4c9d9d9..217597e84905 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
@@ -1,5 +1,5 @@
 CONFIG_RCU_TORTURE_TEST=y
 CONFIG_PRINTK_TIME=y
-CONFIG_RCU_TORTURE_TEST_SLOW_CLEANUP=y
-CONFIG_RCU_TORTURE_TEST_SLOW_INIT=y
-CONFIG_RCU_TORTURE_TEST_SLOW_PREINIT=y
+CONFIG_PARAVIRT=y
+CONFIG_KCSAN_ASSUME_PLAIN_WRITES_ATOMIC=n
+CONFIG_KCSAN_REPORT_VALUE_CHANGE_ONLY=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.i686 b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.i686
new file mode 100644
index 000000000000..d8b2f555686f
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.i686
@@ -0,0 +1,2 @@
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_KVM_GUEST=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.ppc64le b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.ppc64le
new file mode 100644
index 000000000000..133da04247ee
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.ppc64le
@@ -0,0 +1 @@
+CONFIG_KVM_GUEST=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.x86_64 b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.x86_64
new file mode 100644
index 000000000000..d8b2f555686f
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon.x86_64
@@ -0,0 +1,2 @@
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_KVM_GUEST=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01 b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01
new file mode 100644
index 000000000000..6fd6acb94518
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01
@@ -0,0 +1,12 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=3
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+#CHECK#CONFIG_PROVE_RCU=y
+CONFIG_RCU_EXPERT=y
+CONFIG_FORCE_TASKS_RUDE_RCU=y
+#CHECK#CONFIG_TASKS_RUDE_RCU=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/RUDE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01.boot
new file mode 100644
index 000000000000..932a0799eb08
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/RUDE01.boot
@@ -0,0 +1,2 @@
+rcutorture.torture_type=tasks-rude
+rcutree.use_softirq=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
index 1a087c3c8bb8..07f5e0a70ae7 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N
@@ -5,4 +5,6 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
-CONFIG_RCU_EXPERT=y
+#CHECK#CONFIG_RCU_EXPERT=n
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot
index 238bfe3bd0cc..b54cf87dc110 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-N.boot
@@ -1 +1,3 @@
 rcutorture.torture_type=srcu
+rcutorture.reader_flavor=0x2
+rcutorture.fwd_progress=3
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
index 4837430a71c0..ab7ccd38232b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P
@@ -2,7 +2,11 @@ CONFIG_RCU_TRACE=n
 CONFIG_SMP=y
 CONFIG_NR_CPUS=8
 CONFIG_HOTPLUG_CPU=y
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_FANOUT=2
+CONFIG_RCU_FANOUT_LEAF=2
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
-#CHECK#CONFIG_RCU_EXPERT=n
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot
index 84a7d51b7481..fb61703690cb 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-P.boot
@@ -1 +1,5 @@
 rcutorture.torture_type=srcud
+rcupdate.rcu_self_test=1
+rcutorture.fwd_progress=3
+srcutree.big_cpu_lim=5
+rcutorture.reader_flavor=0x8
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T
new file mode 100644
index 000000000000..c70cf0405f24
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T
@@ -0,0 +1,12 @@
+CONFIG_SMP=n
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TINY_SRCU=y
+CONFIG_RCU_TRACE=n
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+#CHECK#CONFIG_PREEMPT_COUNT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T.boot
new file mode 100644
index 000000000000..238bfe3bd0cc
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-T.boot
@@ -0,0 +1 @@
+rcutorture.torture_type=srcu
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U
new file mode 100644
index 000000000000..bc9eeabaa1b1
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U
@@ -0,0 +1,10 @@
+CONFIG_SMP=n
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TINY_SRCU=y
+CONFIG_RCU_TRACE=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_PREEMPT_COUNT=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U.boot b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U.boot
new file mode 100644
index 000000000000..ce48c7b82673
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/SRCU-U.boot
@@ -0,0 +1,2 @@
+rcutorture.torture_type=srcud
+rcupdate.rcu_self_test=1
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
index 2cc0e60eba6e..d84801b9a7ae 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01
@@ -1,10 +1,11 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=4
 CONFIG_HOTPLUG_CPU=y
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 CONFIG_DEBUG_LOCK_ALLOC=y
-CONFIG_PROVE_LOCKING=n
-#CHECK#CONFIG_PROVE_RCU=n
+CONFIG_PROVE_LOCKING=y
+#CHECK#CONFIG_PROVE_RCU=y
+CONFIG_TASKS_RCU=y
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot
index cd2a188eeb6d..30ca5b493c4b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS01.boot
@@ -1 +1,3 @@
 rcutorture.torture_type=tasks
+rcutree.use_softirq=0
+rcupdate.rcu_task_enqueue_lim=4
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
index ad2be91e5ee7..2f9fcffff5ae 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02
@@ -2,3 +2,7 @@ CONFIG_SMP=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TASKS_RCU=y
+CONFIG_FORCE_TASKS_RCU=y
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02.boot
index cd2a188eeb6d..b9b6d67cbc5f 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS02.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS02.boot
@@ -1 +1,2 @@
 rcutorture.torture_type=tasks
+rcutorture.stat_interval=60
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03 b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
index c70c51d5ded1..2ef2fb69c360 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03
@@ -1,13 +1,10 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=2
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
+CONFIG_NR_CPUS=4
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=n
 CONFIG_NO_HZ_FULL=y
-CONFIG_NO_HZ_FULL_ALL=y
-#CHECK#CONFIG_RCU_EXPERT=n
+CONFIG_TASKS_RCU=y
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03.boot b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03.boot
index cd2a188eeb6d..838297c58318 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TASKS03.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TASKS03.boot
@@ -1 +1 @@
-rcutorture.torture_type=tasks
+rcutorture.torture_type=tasks nohz_full=1
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY01 b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
index 0a63e073a00c..0953c52fcfd7 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TINY01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY01
@@ -2,11 +2,13 @@ CONFIG_SMP=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
 #CHECK#CONFIG_TINY_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
 CONFIG_RCU_TRACE=n
+#CHECK#CONFIG_RCU_STALL_COMMON=n
 CONFIG_DEBUG_LOCK_ALLOC=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_PREEMPT_COUNT=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY02 b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
index f1892e0371c9..30439f6fc20e 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TINY02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02
@@ -2,13 +2,14 @@ CONFIG_SMP=n
 CONFIG_PREEMPT_NONE=y
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
 #CHECK#CONFIG_TINY_RCU=y
 CONFIG_HZ_PERIODIC=y
 CONFIG_NO_HZ_IDLE=n
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_TRACE=y
 CONFIG_PROVE_LOCKING=y
 #CHECK#CONFIG_PROVE_RCU=y
 CONFIG_DEBUG_LOCK_ALLOC=y
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-CONFIG_PREEMPT_COUNT=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
index 6c1a292a65fb..b39f1553a478 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TINY02.boot
@@ -1,3 +1 @@
 rcupdate.rcu_self_test=1
-rcupdate.rcu_self_test_bh=1
-rcutorture.torture_type=rcu_bh
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01 b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01
new file mode 100644
index 000000000000..85b407467454
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01
@@ -0,0 +1,14 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=5
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+#CHECK#CONFIG_PROVE_RCU=n
+CONFIG_FORCE_TASKS_TRACE_RCU=y
+#CHECK#CONFIG_TASKS_TRACE_RCU=y
+CONFIG_TASKS_TRACE_RCU_READ_MB=y
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot
new file mode 100644
index 000000000000..ba6d636a4856
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE01.boot
@@ -0,0 +1,2 @@
+rcutorture.torture_type=tasks-tracing
+rcupdate.rcu_task_enqueue_lim=2
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02 b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02
new file mode 100644
index 000000000000..9003c56cd764
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02
@@ -0,0 +1,14 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=4
+CONFIG_HOTPLUG_CPU=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+#CHECK#CONFIG_PROVE_RCU=y
+CONFIG_FORCE_TASKS_TRACE_RCU=y
+#CHECK#CONFIG_TASKS_TRACE_RCU=y
+CONFIG_TASKS_TRACE_RCU_READ_MB=n
+CONFIG_RCU_EXPERT=y
+CONFIG_DEBUG_OBJECTS=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot
new file mode 100644
index 000000000000..c70b5db6c2ae
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRACE02.boot
@@ -0,0 +1,2 @@
+rcutorture.torture_type=tasks-tracing
+rcutorture.fwd_progress=2
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01 b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
index 8e9137f66831..54b1600c7eb5 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01
@@ -6,14 +6,10 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=y
 CONFIG_RCU_TRACE=y
 CONFIG_HOTPLUG_CPU=y
-CONFIG_MAXSMP=y
 CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_ZERO=y
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
index adc3abc82fb8..1cc5b47dde28 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot
@@ -1 +1,8 @@
-rcutorture.torture_type=rcu_bh maxcpus=8
+maxcpus=8 nr_cpus=17
+rcutree.gp_preinit_delay=3
+rcutree.gp_init_delay=3
+rcutree.gp_cleanup_delay=3
+rcu_nocbs=0-1,3-7
+rcutorture.nocbs_nthreads=8
+rcutorture.nocbs_toggle=1000
+rcutorture.fwd_progress=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02 b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
index aeea6a204d14..2871ee599891 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE02
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02
@@ -7,17 +7,13 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_RCU_FANOUT=3
 CONFIG_RCU_FANOUT_LEAF=3
 CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=y
 CONFIG_PROVE_LOCKING=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_BOOST=n
-CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
+CONFIG_DEBUG_OBJECTS=y
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot
new file mode 100644
index 000000000000..dd914fa8f690
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE02.boot
@@ -0,0 +1 @@
+rcutorture.fwd_progress=2
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE03 b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
index 72aa7d87ea99..2dc31b16e506 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE03
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03
@@ -13,8 +13,6 @@ CONFIG_RCU_FANOUT=2
 CONFIG_RCU_FANOUT_LEAF=2
 CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_BOOST=y
-CONFIG_RCU_KTHREAD_PRIO=2
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
index 120c0c88d100..90318591dae2 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE03.boot
@@ -1 +1,8 @@
-rcutorture.onoff_interval=1 rcutorture.onoff_holdoff=30
+rcutorture.onoff_interval=200 rcutorture.onoff_holdoff=30
+rcutree.gp_preinit_delay=12
+rcutree.gp_init_delay=3
+rcutree.gp_cleanup_delay=3
+rcutree.kthread_prio=2
+threadirqs
+rcutree.use_softirq=0
+rcutorture.preempt_duration=10
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04 b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
index 3f5112751cda..67caf4276bb0 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04
@@ -1,22 +1,19 @@
 CONFIG_SMP=y
 CONFIG_NR_CPUS=8
-CONFIG_PREEMPT_NONE=y
-CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
 #CHECK#CONFIG_TREE_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=n
 CONFIG_NO_HZ_FULL=y
-CONFIG_NO_HZ_FULL_ALL=y
-CONFIG_RCU_FAST_NO_HZ=y
 CONFIG_RCU_TRACE=y
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_RCU_FANOUT=4
-CONFIG_RCU_FANOUT_LEAF=4
-CONFIG_RCU_NOCB_CPU=n
+CONFIG_RCU_FANOUT_LEAF=3
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
+CONFIG_RCU_EQS_DEBUG=y
+CONFIG_RCU_LAZY=y
+CONFIG_RCU_DYNTICKS_TORTURE=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
index 0fc8a3428938..a8d94caf7d2f 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE04.boot
@@ -1 +1 @@
-rcutorture.torture_type=rcu_bh
+rcutree.rcu_fanout_leaf=4 nohz_full=1-N
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE05 b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
index c04dfea6fd21..9f48c73709ec 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE05
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05
@@ -7,16 +7,14 @@ CONFIG_PREEMPT=n
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=n
 CONFIG_HOTPLUG_CPU=y
 CONFIG_RCU_FANOUT=6
 CONFIG_RCU_FANOUT_LEAF=6
 CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_NONE=y
 CONFIG_DEBUG_LOCK_ALLOC=y
 CONFIG_PROVE_LOCKING=y
 #CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
+CONFIG_PROVE_RCU_LIST=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
index 15b3e1a86f74..54f5c9053474 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE05.boot
@@ -1,2 +1,10 @@
-rcutorture.torture_type=sched
-rcupdate.rcu_self_test_sched=1
+rcutree.gp_preinit_delay=3
+rcutree.gp_init_delay=3
+rcutree.gp_cleanup_delay=3
+rcupdate.rcu_self_test=1
+
+# This part is for synchronize_rcu() testing
+rcutorture.nfakewriters=-1
+rcutorture.gp_sync=1
+rcupdate.rcu_normal=1
+rcutree.rcu_normal_wake_from_gp=1
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE06 b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
index f51d2c73a68e..db27651de04b 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE06
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE06
@@ -7,17 +7,13 @@ CONFIG_PREEMPT=n
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_RCU_FANOUT=6
 CONFIG_RCU_FANOUT_LEAF=6
 CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=y
 CONFIG_PROVE_LOCKING=y
 #CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
+CONFIG_DEBUG_OBJECTS=y
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=y
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot
index dd90f28ed700..055f4aa79077 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE06.boot
@@ -1,4 +1,5 @@
 rcupdate.rcu_self_test=1
-rcupdate.rcu_self_test_bh=1
-rcupdate.rcu_self_test_sched=1
 rcutree.rcu_fanout_exact=1
+rcutree.gp_preinit_delay=3
+rcutree.gp_init_delay=3
+rcutree.gp_cleanup_delay=3
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE07 b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
index f422af4ff5a3..352393bc5c56 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE07
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE07
@@ -1,22 +1,18 @@
 CONFIG_SMP=y
 CONFIG_NR_CPUS=16
-CONFIG_CPUMASK_OFFSTACK=y
-CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT_LAZY=y
 CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
 #CHECK#CONFIG_TREE_RCU=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=n
 CONFIG_NO_HZ_FULL=y
-CONFIG_NO_HZ_FULL_ALL=n
-CONFIG_NO_HZ_FULL_SYSIDLE=y
-CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=y
 CONFIG_HOTPLUG_CPU=y
 CONFIG_RCU_FANOUT=2
 CONFIG_RCU_FANOUT_LEAF=2
-CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot
index d44609937503..55ce305b2a3d 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE07.boot
@@ -1 +1,5 @@
 nohz_full=2-9
+rcutorture.stall_cpu=14
+rcutorture.stall_cpu_holdoff=90
+rcutorture.fwd_progress=0
+rcutree.nohz_full_patience_delay=1000
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08 b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
index a24d2ca30646..8b561355b9ef 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08
@@ -7,19 +7,13 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
 CONFIG_RCU_TRACE=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_RCU_FANOUT=3
 CONFIG_RCU_FANOUT_LEAF=2
 CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_ALL=y
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_PROVE_LOCKING=y
-#CHECK#CONFIG_PROVE_RCU=y
-CONFIG_RCU_CPU_STALL_INFO=n
+CONFIG_PROVE_LOCKING=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
 CONFIG_RCU_EXPERT=y
+CONFIG_RCU_EQS_DEBUG=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T.boot
deleted file mode 100644
index 883149b5f2d1..000000000000
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T.boot
+++ /dev/null
@@ -1 +0,0 @@
-rcutree.rcu_fanout_exact=1
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
index fb066dc82769..94d38445d393 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE08.boot
@@ -1,4 +1,3 @@
-rcutorture.torture_type=sched
 rcupdate.rcu_self_test=1
-rcupdate.rcu_self_test_sched=1
 rcutree.rcu_fanout_exact=1
+rcu_nocbs=all
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE09 b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
index aa4ed08d999d..9ecd1b4e653d 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE09
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE09
@@ -8,12 +8,11 @@ CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
 CONFIG_RCU_TRACE=n
-CONFIG_HOTPLUG_CPU=n
-CONFIG_SUSPEND=n
-CONFIG_HIBERNATION=n
 CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
-CONFIG_RCU_BOOST=n
+CONFIG_RCU_BOOST=y
+CONFIG_RCU_BOOST_DELAY=100
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
-#CHECK#CONFIG_RCU_EXPERT=n
+CONFIG_RCU_EXPERT=y
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE10 b/tools/testing/selftests/rcutorture/configs/rcu/TREE10
new file mode 100644
index 000000000000..420632b030dc
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE10
@@ -0,0 +1,19 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=74
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_LAZY=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TREE_RCU=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_TRACE=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+#CHECK#CONFIG_PROVE_RCU=n
+CONFIG_DEBUG_OBJECTS=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot b/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot
new file mode 100644
index 000000000000..dd914fa8f690
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TREE10.boot
@@ -0,0 +1 @@
+rcutorture.fwd_progress=2
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL b/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL
new file mode 100644
index 000000000000..5d546efa68e8
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL
@@ -0,0 +1,11 @@
+CONFIG_SMP=y
+CONFIG_NR_CPUS=8
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot b/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot
new file mode 100644
index 000000000000..7017f5f5a55f
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot
@@ -0,0 +1,3 @@
+rcutorture.torture_type=trivial
+rcutorture.onoff_interval=0
+rcutorture.shuffle_interval=0
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
index ffb85ed786fa..c044df386876 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
+++ b/tools/testing/selftests/rcutorture/configs/rcu/ver_functions.sh
@@ -1,28 +1,15 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
 #
 # Kernel-version-dependent shell functions for the rest of the scripts.
 #
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, you can access it online at
-# http://www.gnu.org/licenses/gpl-2.0.html.
-#
 # Copyright (C) IBM Corporation, 2013
 #
-# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
 
 # rcutorture_param_n_barrier_cbs bootparam-string
 #
-# Adds n_barrier_cbs rcutorture module parameter to kernels having it.
+# Adds n_barrier_cbs rcutorture module parameter if not already specified.
 rcutorture_param_n_barrier_cbs () {
 	if echo $1 | grep -q "rcutorture\.n_barrier_cbs"
 	then
@@ -39,7 +26,19 @@ rcutorture_param_onoff () {
 	if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
 	then
 		echo CPU-hotplug kernel, adding rcutorture onoff. 1>&2
-		echo rcutorture.onoff_interval=3 rcutorture.onoff_holdoff=30
+		echo rcutorture.onoff_interval=1000 rcutorture.onoff_holdoff=30
+	fi
+}
+
+# rcutorture_param_stat_interval bootparam-string
+#
+# Adds stat_interval rcutorture module parameter if not already specified.
+rcutorture_param_stat_interval () {
+	if echo $1 | grep -q "rcutorture\.stat_interval"
+	then
+		:
+	else
+		echo rcutorture.stat_interval=15
 	fi
 }
 
@@ -47,11 +46,11 @@ rcutorture_param_onoff () {
 #
 # Adds per-version torture-module parameters to kernels supporting them.
 per_version_boot_params () {
-	echo $1 `rcutorture_param_onoff "$1" "$2"` \
+	echo	`rcutorture_param_onoff "$1" "$2"` \
 		`rcutorture_param_n_barrier_cbs "$1"` \
-		rcutorture.stat_interval=15 \
+		`rcutorture_param_stat_interval "$1"` \
 		rcutorture.shutdown_secs=$3 \
-		rcutorture.torture_runnable=1 \
 		rcutorture.test_no_idle_hz=1 \
-		rcutorture.verbose=1
+		rcutorture.verbose=1 \
+		$1
 }
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/CFLIST b/tools/testing/selftests/rcutorture/configs/rcuscale/CFLIST
new file mode 100644
index 000000000000..c9f56cf20775
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/CFLIST
@@ -0,0 +1 @@
+TREE
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon
new file mode 100644
index 000000000000..b1ffd7c67604
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/CFcommon
@@ -0,0 +1,8 @@
+CONFIG_RCU_SCALE_TEST=y
+CONFIG_PRINTK_TIME=y
+CONFIG_FORCE_TASKS_RCU=y
+#CHECK#CONFIG_TASKS_RCU=y
+CONFIG_FORCE_TASKS_RUDE_RCU=y
+#CHECK#CONFIG_TASKS_RUDE_RCU=y
+CONFIG_FORCE_TASKS_TRACE_RCU=y
+#CHECK#CONFIG_TASKS_TRACE_RCU=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TINY b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
new file mode 100644
index 000000000000..0fa2dc086e10
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TINY
@@ -0,0 +1,16 @@
+CONFIG_SMP=n
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TINY_RCU=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_RCU_BOOST=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_TRACE=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01 b/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01
new file mode 100644
index 000000000000..0059592c7408
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01
@@ -0,0 +1,16 @@
+CONFIG_SMP=y
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_TREE_RCU=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_RCU_BOOST=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_TRACE=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01.boot b/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01.boot
new file mode 100644
index 000000000000..af0aff1457a4
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TRACE01.boot
@@ -0,0 +1 @@
+rcuscale.scale_type=tasks-tracing
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE
index 2ac9e68ea3d1..b10706fd03a4 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE02-T
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE
@@ -1,5 +1,4 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=8
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
@@ -7,16 +6,15 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
-CONFIG_RCU_TRACE=y
-CONFIG_HOTPLUG_CPU=n
+CONFIG_HOTPLUG_CPU=y
 CONFIG_SUSPEND=n
 CONFIG_HIBERNATION=n
-CONFIG_RCU_FANOUT=3
-CONFIG_RCU_FANOUT_LEAF=3
 CONFIG_RCU_NOCB_CPU=n
-CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_DEBUG_LOCK_ALLOC=n
 CONFIG_PROVE_LOCKING=n
-CONFIG_RCU_CPU_STALL_INFO=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_TRACE=y
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE54
index b2b8cea69dc9..9f83e5372796 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/TREE08-T
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/TREE54
@@ -1,5 +1,5 @@
 CONFIG_SMP=y
-CONFIG_NR_CPUS=16
+CONFIG_NR_CPUS=54
 CONFIG_PREEMPT_NONE=n
 CONFIG_PREEMPT_VOLUNTARY=n
 CONFIG_PREEMPT=y
@@ -7,16 +7,15 @@ CONFIG_PREEMPT=y
 CONFIG_HZ_PERIODIC=n
 CONFIG_NO_HZ_IDLE=y
 CONFIG_NO_HZ_FULL=n
-CONFIG_RCU_FAST_NO_HZ=n
-CONFIG_RCU_TRACE=y
-CONFIG_HOTPLUG_CPU=n
+CONFIG_HOTPLUG_CPU=y
 CONFIG_SUSPEND=n
 CONFIG_HIBERNATION=n
 CONFIG_RCU_FANOUT=3
 CONFIG_RCU_FANOUT_LEAF=2
-CONFIG_RCU_NOCB_CPU=y
-CONFIG_RCU_NOCB_CPU_ALL=y
+CONFIG_RCU_NOCB_CPU=n
 CONFIG_DEBUG_LOCK_ALLOC=n
-CONFIG_RCU_CPU_STALL_INFO=n
+CONFIG_PROVE_LOCKING=n
 CONFIG_RCU_BOOST=n
 CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_RCU_TRACE=y
diff --git a/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh
new file mode 100644
index 000000000000..28070b43f017
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/rcuscale/ver_functions.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Torture-suite-dependent shell functions for the rest of the scripts.
+#
+# Copyright (C) IBM Corporation, 2015
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+# per_version_boot_params bootparam-string config-file seconds
+#
+# Adds per-version torture-module parameters to kernels supporting them.
+per_version_boot_params () {
+	echo	rcuscale.shutdown=1 \
+		rcuscale.verbose=0 \
+		$1
+}
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/CFLIST b/tools/testing/selftests/rcutorture/configs/refscale/CFLIST
new file mode 100644
index 000000000000..4d62eb4a39f9
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/CFLIST
@@ -0,0 +1,2 @@
+NOPREEMPT
+PREEMPT
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/CFcommon b/tools/testing/selftests/rcutorture/configs/refscale/CFcommon
new file mode 100644
index 000000000000..fbea3b13baba
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/CFcommon
@@ -0,0 +1,6 @@
+CONFIG_RCU_REF_SCALE_TEST=y
+CONFIG_PRINTK_TIME=y
+CONFIG_FORCE_TASKS_RCU=y
+#CHECK#CONFIG_TASKS_RCU=y
+CONFIG_FORCE_TASKS_TRACE_RCU=y
+#CHECK#CONFIG_TASKS_TRACE_RCU=y
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT
new file mode 100644
index 000000000000..67f9d2998afd
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/NOPREEMPT
@@ -0,0 +1,20 @@
+CONFIG_SMP=y
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_PREEMPT_RCU=n
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_HOTPLUG_CPU=y
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_RCU_BOOST=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/PREEMPT b/tools/testing/selftests/rcutorture/configs/refscale/PREEMPT
new file mode 100644
index 000000000000..52e3ef674056
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/PREEMPT
@@ -0,0 +1,17 @@
+CONFIG_SMP=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
+#CHECK#CONFIG_PREEMPT_RCU=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_HOTPLUG_CPU=y
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_RCU_BOOST=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/TINY b/tools/testing/selftests/rcutorture/configs/refscale/TINY
new file mode 100644
index 000000000000..759343980b80
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/TINY
@@ -0,0 +1,20 @@
+CONFIG_SMP=n
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_PREEMPT_RCU=n
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_HOTPLUG_CPU=n
+CONFIG_SUSPEND=n
+CONFIG_HIBERNATION=n
+CONFIG_RCU_NOCB_CPU=n
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_RCU_BOOST=n
+CONFIG_DEBUG_OBJECTS_RCU_HEAD=n
+CONFIG_RCU_EXPERT=y
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh
new file mode 100644
index 000000000000..748465627601
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/refscale/ver_functions.sh
@@ -0,0 +1,17 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Torture-suite-dependent shell functions for the rest of the scripts.
+#
+# Copyright (C) IBM Corporation, 2015
+#
+# Authors: Paul E. McKenney <paulmck@linux.ibm.com>
+
+# per_version_boot_params bootparam-string config-file seconds
+#
+# Adds per-version torture-module parameters to kernels supporting them.
+per_version_boot_params () {
+	echo	refscale.shutdown=1 \
+		refscale.verbose=0 \
+		$1
+}
diff --git a/tools/testing/selftests/rcutorture/configs/scf/CFLIST b/tools/testing/selftests/rcutorture/configs/scf/CFLIST
new file mode 100644
index 000000000000..4d62eb4a39f9
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/CFLIST
@@ -0,0 +1,2 @@
+NOPREEMPT
+PREEMPT
diff --git a/tools/testing/selftests/rcutorture/configs/scf/CFcommon b/tools/testing/selftests/rcutorture/configs/scf/CFcommon
new file mode 100644
index 000000000000..c11ab91f49f5
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/CFcommon
@@ -0,0 +1,2 @@
+CONFIG_SCF_TORTURE_TEST=y
+CONFIG_PRINTK_TIME=y
diff --git a/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT
new file mode 100644
index 000000000000..6133f54ce2a7
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT
@@ -0,0 +1,13 @@
+CONFIG_SMP=y
+CONFIG_PREEMPT_NONE=y
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=n
+CONFIG_PREEMPT_DYNAMIC=n
+#CHECK#CONFIG_PREEMPT_RCU=n
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=n
+CONFIG_NO_HZ_FULL=y
+CONFIG_DEBUG_LOCK_ALLOC=n
+CONFIG_PROVE_LOCKING=n
+CONFIG_KPROBES=n
+CONFIG_FTRACE=n
diff --git a/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT.boot b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT.boot
new file mode 100644
index 000000000000..d6a7fa097c2e
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/NOPREEMPT.boot
@@ -0,0 +1 @@
+nohz_full=1
diff --git a/tools/testing/selftests/rcutorture/configs/scf/PREEMPT b/tools/testing/selftests/rcutorture/configs/scf/PREEMPT
new file mode 100644
index 000000000000..cb37e08037d6
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/PREEMPT
@@ -0,0 +1,10 @@
+CONFIG_SMP=y
+CONFIG_PREEMPT_NONE=n
+CONFIG_PREEMPT_VOLUNTARY=n
+CONFIG_PREEMPT=y
+CONFIG_HZ_PERIODIC=n
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_HZ_FULL=n
+CONFIG_DEBUG_LOCK_ALLOC=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_RCU_EXPERT=y
diff --git a/tools/testing/selftests/rcutorture/configs/scf/ver_functions.sh b/tools/testing/selftests/rcutorture/configs/scf/ver_functions.sh
new file mode 100644
index 000000000000..7637f68ef0ce
--- /dev/null
+++ b/tools/testing/selftests/rcutorture/configs/scf/ver_functions.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Torture-suite-dependent shell functions for the rest of the scripts.
+#
+# Copyright (C) Facebook, 2020
+#
+# Authors: Paul E. McKenney <paulmck@kernel.org>
+
+# scftorture_param_onoff bootparam-string config-file
+#
+# Adds onoff scftorture module parameters to kernels having it.
+scftorture_param_onoff () {
+	if ! bootparam_hotplug_cpu "$1" && configfrag_hotplug_cpu "$2"
+	then
+		echo CPU-hotplug kernel, adding scftorture onoff. 1>&2
+		echo scftorture.onoff_interval=1000 scftorture.onoff_holdoff=30
+	fi
+}
+
+# per_version_boot_params bootparam-string config-file seconds
+#
+# Adds per-version torture-module parameters to kernels supporting them.
+per_version_boot_params () {
+	echo	`scftorture_param_onoff "$1" "$2"` \
+		scftorture.stat_interval=15 \
+		scftorture.shutdown_secs=$3 \
+		scftorture.verbose=1 \
+		$1
+}
diff --git a/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt b/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt
index 9ef33a743b73..a75b16991a92 100644
--- a/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt
+++ b/tools/testing/selftests/rcutorture/doc/TINY_RCU.txt
@@ -18,9 +18,7 @@ CONFIG_PROVE_RCU
 
 	In common code tested by TREE_RCU test cases.
 
-CONFIG_NO_HZ_FULL_SYSIDLE
 CONFIG_RCU_NOCB_CPU
-CONFIG_RCU_USER_QS
 
 	Meaningless for TINY_RCU.
 
diff --git a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
index b24c0004fc49..3f5fb66f16df 100644
--- a/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
+++ b/tools/testing/selftests/rcutorture/doc/TREE_RCU-kconfig.txt
@@ -6,27 +6,22 @@ Kconfig Parameters:
 
 CONFIG_DEBUG_LOCK_ALLOC -- Do three, covering CONFIG_PROVE_LOCKING & not.
 CONFIG_DEBUG_OBJECTS_RCU_HEAD -- Do one.
-CONFIG_HOTPLUG_CPU -- Do half.  (Every second.)
 CONFIG_HZ_PERIODIC -- Do one.
 CONFIG_NO_HZ_IDLE -- Do those not otherwise specified. (Groups of two.)
-CONFIG_NO_HZ_FULL -- Do two, one with CONFIG_NO_HZ_FULL_SYSIDLE.
-CONFIG_NO_HZ_FULL_SYSIDLE -- Do one.
+CONFIG_NO_HZ_FULL -- Do two, one with partial CPU enablement.
 CONFIG_PREEMPT -- Do half.  (First three and #8.)
 CONFIG_PROVE_LOCKING -- Do several, covering CONFIG_DEBUG_LOCK_ALLOC=y and not.
 CONFIG_PROVE_RCU -- Hardwired to CONFIG_PROVE_LOCKING.
 CONFIG_RCU_BOOST -- one of PREEMPT_RCU.
-CONFIG_RCU_KTHREAD_PRIO -- set to 2 for _BOOST testing.
-CONFIG_RCU_CPU_STALL_INFO -- Now default, avoid at least twice.
 CONFIG_RCU_FANOUT -- Cover hierarchy, but overlap with others.
 CONFIG_RCU_FANOUT_LEAF -- Do one non-default.
-CONFIG_RCU_FAST_NO_HZ -- Do one, but not with CONFIG_RCU_NOCB_CPU_ALL.
-CONFIG_RCU_NOCB_CPU -- Do three, see below.
-CONFIG_RCU_NOCB_CPU_ALL -- Do one.
-CONFIG_RCU_NOCB_CPU_NONE -- Do one.
-CONFIG_RCU_NOCB_CPU_ZERO -- Do one.
+CONFIG_RCU_NOCB_CPU -- Do three, one with no rcu_nocbs CPUs, one with
+	rcu_nocbs=0, and one with all rcu_nocbs CPUs.
 CONFIG_RCU_TRACE -- Do half.
 CONFIG_SMP -- Need one !SMP for PREEMPT_RCU.
-!RCU_EXPERT -- Do a few, but these have to be vanilla configurations.
+CONFIG_RCU_EXPERT=n -- Do a few, but these have to be vanilla configurations.
+CONFIG_RCU_EQS_DEBUG -- Do at least one for CONFIG_NO_HZ_FULL and not.
+
 RCU-bh: Do one with PREEMPT and one with !PREEMPT.
 RCU-sched: Do one with PREEMPT but not BOOST.
 
@@ -47,10 +42,6 @@ CONFIG_64BIT
 
 	Used only to check CONFIG_RCU_FANOUT value, inspection suffices.
 
-CONFIG_NO_HZ_FULL_SYSIDLE_SMALL
-
-	Defer until Frederic uses this.
-
 CONFIG_PREEMPT_COUNT
 CONFIG_PREEMPT_RCU
 
@@ -73,11 +64,12 @@ CONFIG_RCU_TORTURE_TEST_RUNNABLE
 
 	Always used in KVM testing.
 
-CONFIG_RCU_USER_QS
-
-	Redundant with CONFIG_NO_HZ_FULL.
-
 CONFIG_PREEMPT_RCU
 CONFIG_TREE_RCU
+CONFIG_TINY_RCU
+CONFIG_TASKS_RCU
+
+	These are controlled by CONFIG_PREEMPT and/or CONFIG_SMP.
+
 
-	These are controlled by CONFIG_PREEMPT.
+boot parameters ignored: TBD
diff --git a/tools/testing/selftests/rcutorture/doc/initrd.txt b/tools/testing/selftests/rcutorture/doc/initrd.txt
index 4170e714f044..41a4255865d4 100644
--- a/tools/testing/selftests/rcutorture/doc/initrd.txt
+++ b/tools/testing/selftests/rcutorture/doc/initrd.txt
@@ -1,9 +1,11 @@
-This document describes one way to create the initrd directory hierarchy
-in order to allow an initrd to be built into your kernel.  The trick
-here is to steal the initrd file used on your Linux laptop, Ubuntu in
-this case.  There are probably much better ways of doing this.
+The rcutorture scripting tools automatically create an initrd containing
+a single statically linked binary named "init" that loops over a
+very long sleep() call.  In both cases, this creation is done by
+tools/testing/selftests/rcutorture/bin/mkinitrd.sh.
 
-That said, here are the commands:
+However, if you don't like the notion of statically linked bare-bones
+userspace environments, you might wish to press an existing initrd
+into service:
 
 ------------------------------------------------------------------------
 cd tools/testing/selftests/rcutorture
@@ -11,81 +13,4 @@ zcat /initrd.img > /tmp/initrd.img.zcat
 mkdir initrd
 cd initrd
 cpio -id < /tmp/initrd.img.zcat
-------------------------------------------------------------------------
-
-Interestingly enough, if you are running rcutorture, you don't really
-need userspace in many cases.  Running without userspace has the
-advantage of allowing you to test your kernel independently of the
-distro in place, the root-filesystem layout, and so on.  To make this
-happen, put the following script in the initrd's tree's "/init" file,
-with 0755 mode.
-
-------------------------------------------------------------------------
-#!/bin/sh
-
-[ -d /dev ] || mkdir -m 0755 /dev
-[ -d /root ] || mkdir -m 0700 /root
-[ -d /sys ] || mkdir /sys
-[ -d /proc ] || mkdir /proc
-[ -d /tmp ] || mkdir /tmp
-mkdir -p /var/lock
-mount -t sysfs -o nodev,noexec,nosuid sysfs /sys
-mount -t proc -o nodev,noexec,nosuid proc /proc
-# Some things don't work properly without /etc/mtab.
-ln -sf /proc/mounts /etc/mtab
-
-# Note that this only becomes /dev on the real filesystem if udev's scripts
-# are used; which they will be, but it's worth pointing out
-if ! mount -t devtmpfs -o mode=0755 udev /dev; then
-	echo "W: devtmpfs not available, falling back to tmpfs for /dev"
-	mount -t tmpfs -o mode=0755 udev /dev
-	[ -e /dev/console ] || mknod --mode=600 /dev/console c 5 1
-	[ -e /dev/kmsg ] || mknod --mode=644 /dev/kmsg c 1 11
-	[ -e /dev/null ] || mknod --mode=666 /dev/null c 1 3
-fi
-
-mkdir /dev/pts
-mount -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts || true
-mount -t tmpfs -o "nosuid,size=20%,mode=0755" tmpfs /run
-mkdir /run/initramfs
-# compatibility symlink for the pre-oneiric locations
-ln -s /run/initramfs /dev/.initramfs
-
-# Export relevant variables
-export ROOT=
-export ROOTDELAY=
-export ROOTFLAGS=
-export ROOTFSTYPE=
-export IP=
-export BOOT=
-export BOOTIF=
-export UBIMTD=
-export break=
-export init=/sbin/init
-export quiet=n
-export readonly=y
-export rootmnt=/root
-export debug=
-export panic=
-export blacklist=
-export resume=
-export resume_offset=
-export recovery=
-
-for i in /sys/devices/system/cpu/cpu*/online
-do
-	case $i in
-	'/sys/devices/system/cpu/cpu0/online')
-		;;
-	'/sys/devices/system/cpu/cpu*/online')
-		;;
-	*)
-		echo 1 > $i
-		;;
-	esac
-done
-
-while :
-do
-	sleep 10
-done
+# Manually verify that initrd contains needed binaries and libraries.
diff --git a/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt b/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
index 66efb59a1bd1..b2fc247976b1 100644
--- a/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
+++ b/tools/testing/selftests/rcutorture/doc/rcu-test-image.txt
@@ -1,8 +1,33 @@
-This document describes one way to created the rcu-test-image file
-that contains the filesystem used by the guest-OS kernel.  There are
-probably much better ways of doing this, and this filesystem could no
-doubt be smaller.  It is probably also possible to simply download
-an appropriate image from any number of places.
+Normally, a minimal initrd is created automatically by the rcutorture
+scripting.  But minimal really does mean "minimal", namely just a single
+root directory with a single statically linked executable named "init":
+
+$ size tools/testing/selftests/rcutorture/initrd/init
+   text    data     bss     dec     hex filename
+    328       0       8     336     150 tools/testing/selftests/rcutorture/initrd/init
+
+Suppose you need to run some scripts, perhaps to monitor or control
+some aspect of the rcutorture testing.  This will require a more fully
+filled-out userspace, perhaps containing libraries, executables for
+the shell and other utilities, and soforth.  In that case, place your
+desired filesystem here:
+
+	tools/testing/selftests/rcutorture/initrd
+
+For example, your tools/testing/selftests/rcutorture/initrd/init might
+be a script that does any needed mount operations and starts whatever
+scripts need starting to properly monitor or control your testing.
+The next rcutorture build will then incorporate this filesystem into
+the kernel image that is passed to qemu.
+
+Or maybe you need a real root filesystem for some reason, in which case
+please read on!
+
+The remainder of this document describes one way to create the
+rcu-test-image file that contains the filesystem used by the guest-OS
+kernel.  There are probably much better ways of doing this, and this
+filesystem could no doubt be smaller.  It is probably also possible to
+simply download an appropriate image from any number of places.
 
 That said, here are the commands:
 
@@ -36,7 +61,7 @@ References:
 	https://help.ubuntu.com/community/JeOSVMBuilder
 	http://wiki.libvirt.org/page/UbuntuKVMWalkthrough
 	http://www.moe.co.uk/2011/01/07/pci_add_option_rom-failed-to-find-romfile-pxe-rtl8139-bin/ -- "apt-get install kvm-pxe"
-	http://www.landley.net/writing/rootfs-howto.html
-	http://en.wikipedia.org/wiki/Initrd
-	http://en.wikipedia.org/wiki/Cpio
+	https://www.landley.net/writing/rootfs-howto.html
+	https://en.wikipedia.org/wiki/Initrd
+	https://en.wikipedia.org/wiki/Cpio
 	http://wiki.libvirt.org/page/UbuntuKVMWalkthrough
diff --git a/tools/testing/selftests/resctrl/.gitignore b/tools/testing/selftests/resctrl/.gitignore
new file mode 100644
index 000000000000..ab68442b6bc8
--- /dev/null
+++ b/tools/testing/selftests/resctrl/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+resctrl_tests
diff --git a/tools/testing/selftests/resctrl/Makefile b/tools/testing/selftests/resctrl/Makefile
new file mode 100644
index 000000000000..984534cfbf1b
--- /dev/null
+++ b/tools/testing/selftests/resctrl/Makefile
@@ -0,0 +1,13 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS = -g -Wall -O2 -D_FORTIFY_SOURCE=2
+CFLAGS += $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS := resctrl_tests
+
+LOCAL_HDRS += $(wildcard *.h)
+
+include ../lib.mk
+CFLAGS += -I$(top_srcdir)/tools/include
+
+$(OUTPUT)/resctrl_tests: $(wildcard *.c)
diff --git a/tools/testing/selftests/resctrl/README b/tools/testing/selftests/resctrl/README
new file mode 100644
index 000000000000..8d11ce7c2ee5
--- /dev/null
+++ b/tools/testing/selftests/resctrl/README
@@ -0,0 +1,78 @@
+resctrl_tests - resctrl file system test suit
+
+Authors:
+	Fenghua Yu <fenghua.yu@intel.com>
+	Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+
+resctrl_tests tests various resctrl functionalities and interfaces including
+both software and hardware.
+
+Currently it supports Memory Bandwidth Monitoring test and Memory Bandwidth
+Allocation test on Intel RDT hardware. More tests will be added in the future.
+And the test suit can be extended to cover AMD QoS and ARM MPAM hardware
+as well.
+
+resctrl_tests can be run with or without kselftest framework.
+
+WITH KSELFTEST FRAMEWORK
+=======================
+
+BUILD
+-----
+
+Build executable file "resctrl_tests" from top level directory of the kernel source:
+ $ make -C tools/testing/selftests TARGETS=resctrl
+
+RUN
+---
+
+Run resctrl_tests as sudo or root since the test needs to mount resctrl file
+system and change contents in the file system.
+Using kselftest framework will run all supported tests within resctrl_tests:
+
+ $ sudo make -C tools/testing/selftests TARGETS=resctrl run_tests
+
+More details about kselftest framework can be found in
+Documentation/dev-tools/kselftest.rst.
+
+WITHOUT KSELFTEST FRAMEWORK
+===========================
+
+BUILD
+-----
+
+Build executable file "resctrl_tests" from this directory(tools/testing/selftests/resctrl/):
+  $ make
+
+RUN
+---
+
+Run resctrl_tests as sudo or root since the test needs to mount resctrl file
+system and change contents in the file system.
+Executing the test without any parameter will run all supported tests:
+
+ $ sudo ./resctrl_tests
+
+OVERVIEW OF EXECUTION
+=====================
+
+A test case has four stages:
+
+  - setup: mount resctrl file system, create group, setup schemata, move test
+    process pids to tasks, start benchmark.
+  - execute: let benchmark run
+  - verify: get resctrl data and verify the data with another source, e.g.
+    perf event.
+  - teardown: umount resctrl and clear temporary files.
+
+ARGUMENTS
+=========
+
+Parameter '-h' shows usage information.
+
+usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits]
+        -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CMT default benchmark is builtin fill_buf
+        -t test list: run tests specified in the test list, e.g. -t mbm,mba,cmt,cat
+        -n no_of_bits: run cache tests using specified no of bits in cache bit mask
+        -p cpu_no: specify CPU number to run the test. 1 is default
+        -h: help
diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c
new file mode 100644
index 000000000000..1ff1104e6575
--- /dev/null
+++ b/tools/testing/selftests/resctrl/cache.c
@@ -0,0 +1,189 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <stdint.h>
+#include "resctrl.h"
+
+char llc_occup_path[1024];
+
+void perf_event_attr_initialize(struct perf_event_attr *pea, __u64 config)
+{
+	memset(pea, 0, sizeof(*pea));
+	pea->type = PERF_TYPE_HARDWARE;
+	pea->size = sizeof(*pea);
+	pea->read_format = PERF_FORMAT_GROUP;
+	pea->exclude_kernel = 1;
+	pea->exclude_hv = 1;
+	pea->exclude_idle = 1;
+	pea->exclude_callchain_kernel = 1;
+	pea->inherit = 1;
+	pea->exclude_guest = 1;
+	pea->disabled = 1;
+	pea->config = config;
+}
+
+/* Start counters to log values */
+int perf_event_reset_enable(int pe_fd)
+{
+	int ret;
+
+	ret = ioctl(pe_fd, PERF_EVENT_IOC_RESET, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = ioctl(pe_fd, PERF_EVENT_IOC_ENABLE, 0);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+void perf_event_initialize_read_format(struct perf_event_read *pe_read)
+{
+	memset(pe_read, 0, sizeof(*pe_read));
+	pe_read->nr = 1;
+}
+
+int perf_open(struct perf_event_attr *pea, pid_t pid, int cpu_no)
+{
+	int pe_fd;
+
+	pe_fd = perf_event_open(pea, pid, cpu_no, -1, PERF_FLAG_FD_CLOEXEC);
+	if (pe_fd == -1) {
+		ksft_perror("Error opening leader");
+		return -1;
+	}
+
+	perf_event_reset_enable(pe_fd);
+
+	return pe_fd;
+}
+
+/*
+ * Get LLC Occupancy as reported by RESCTRL FS
+ * For CMT,
+ * 1. If con_mon grp and mon grp given, then read from mon grp in
+ * con_mon grp
+ * 2. If only con_mon grp given, then read from con_mon grp
+ * 3. If both not given, then read from root con_mon grp
+ * For CAT,
+ * 1. If con_mon grp given, then read from it
+ * 2. If con_mon grp not given, then read from root con_mon grp
+ *
+ * Return: =0 on success.  <0 on failure.
+ */
+static int get_llc_occu_resctrl(unsigned long *llc_occupancy)
+{
+	FILE *fp;
+
+	fp = fopen(llc_occup_path, "r");
+	if (!fp) {
+		ksft_perror("Failed to open results file");
+
+		return -1;
+	}
+	if (fscanf(fp, "%lu", llc_occupancy) <= 0) {
+		ksft_perror("Could not get llc occupancy");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	return 0;
+}
+
+/*
+ * print_results_cache:	the cache results are stored in a file
+ * @filename:		file that stores the results
+ * @bm_pid:		child pid that runs benchmark
+ * @llc_value:		perf miss value /
+ *			llc occupancy value reported by resctrl FS
+ *
+ * Return:		0 on success, < 0 on error.
+ */
+static int print_results_cache(const char *filename, pid_t bm_pid, __u64 llc_value)
+{
+	FILE *fp;
+
+	if (strcmp(filename, "stdio") == 0 || strcmp(filename, "stderr") == 0) {
+		printf("Pid: %d \t LLC_value: %llu\n", (int)bm_pid, llc_value);
+	} else {
+		fp = fopen(filename, "a");
+		if (!fp) {
+			ksft_perror("Cannot open results file");
+
+			return -1;
+		}
+		fprintf(fp, "Pid: %d \t llc_value: %llu\n", (int)bm_pid, llc_value);
+		fclose(fp);
+	}
+
+	return 0;
+}
+
+/*
+ * perf_event_measure - Measure perf events
+ * @filename:	Filename for writing the results
+ * @bm_pid:	PID that runs the benchmark
+ *
+ * Measures perf events (e.g., cache misses) and writes the results into
+ * @filename. @bm_pid is written to the results file along with the measured
+ * value.
+ *
+ * Return: =0 on success. <0 on failure.
+ */
+int perf_event_measure(int pe_fd, struct perf_event_read *pe_read,
+		       const char *filename, pid_t bm_pid)
+{
+	int ret;
+
+	/* Stop counters after one span to get miss rate */
+	ret = ioctl(pe_fd, PERF_EVENT_IOC_DISABLE, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = read(pe_fd, pe_read, sizeof(*pe_read));
+	if (ret == -1) {
+		ksft_perror("Could not get perf value");
+		return -1;
+	}
+
+	return print_results_cache(filename, bm_pid, pe_read->values[0].value);
+}
+
+/*
+ * measure_llc_resctrl - Measure resctrl LLC value from resctrl
+ * @filename:	Filename for writing the results
+ * @bm_pid:	PID that runs the benchmark
+ *
+ * Measures LLC occupancy from resctrl and writes the results into @filename.
+ * @bm_pid is written to the results file along with the measured value.
+ *
+ * Return: =0 on success. <0 on failure.
+ */
+int measure_llc_resctrl(const char *filename, pid_t bm_pid)
+{
+	unsigned long llc_occu_resc = 0;
+	int ret;
+
+	ret = get_llc_occu_resctrl(&llc_occu_resc);
+	if (ret < 0)
+		return ret;
+
+	return print_results_cache(filename, bm_pid, llc_occu_resc);
+}
+
+/*
+ * show_cache_info - Show generic cache test information
+ * @no_of_bits:		Number of bits
+ * @avg_llc_val:	Average of LLC cache result data
+ * @cache_span:		Cache span
+ * @lines:		@cache_span in lines or bytes
+ */
+void show_cache_info(int no_of_bits, __u64 avg_llc_val, size_t cache_span, bool lines)
+{
+	ksft_print_msg("Number of bits: %d\n", no_of_bits);
+	ksft_print_msg("Average LLC val: %llu\n", avg_llc_val);
+	ksft_print_msg("Cache span (%s): %zu\n", lines ? "lines" : "bytes",
+		       cache_span);
+}
diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
new file mode 100644
index 000000000000..94cfdba5308d
--- /dev/null
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -0,0 +1,402 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Cache Allocation Technology (CAT) test
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+#include <unistd.h>
+
+#define RESULT_FILE_NAME	"result_cat"
+#define NUM_OF_RUNS		5
+
+/*
+ * Minimum difference in LLC misses between a test with n+1 bits CBM to the
+ * test with n bits is MIN_DIFF_PERCENT_PER_BIT * (n - 1). With e.g. 5 vs 4
+ * bits in the CBM mask, the minimum difference must be at least
+ * MIN_DIFF_PERCENT_PER_BIT * (4 - 1) = 3 percent.
+ *
+ * The relationship between number of used CBM bits and difference in LLC
+ * misses is not expected to be linear. With a small number of bits, the
+ * margin is smaller than with larger number of bits. For selftest purposes,
+ * however, linear approach is enough because ultimately only pass/fail
+ * decision has to be made and distinction between strong and stronger
+ * signal is irrelevant.
+ */
+#define MIN_DIFF_PERCENT_PER_BIT	1UL
+
+static int show_results_info(__u64 sum_llc_val, int no_of_bits,
+			     unsigned long cache_span,
+			     unsigned long min_diff_percent,
+			     unsigned long num_of_runs, bool platform,
+			     __s64 *prev_avg_llc_val)
+{
+	__u64 avg_llc_val = 0;
+	float avg_diff;
+	int ret = 0;
+
+	avg_llc_val = sum_llc_val / num_of_runs;
+	if (*prev_avg_llc_val) {
+		float delta = (__s64)(avg_llc_val - *prev_avg_llc_val);
+
+		avg_diff = delta / *prev_avg_llc_val;
+		ret = platform && (avg_diff * 100) < (float)min_diff_percent;
+
+		ksft_print_msg("%s Check cache miss rate changed more than %.1f%%\n",
+			       ret ? "Fail:" : "Pass:", (float)min_diff_percent);
+
+		ksft_print_msg("Percent diff=%.1f\n", avg_diff * 100);
+	}
+	*prev_avg_llc_val = avg_llc_val;
+
+	show_cache_info(no_of_bits, avg_llc_val, cache_span, true);
+
+	return ret;
+}
+
+/* Remove the highest bit from CBM */
+static unsigned long next_mask(unsigned long current_mask)
+{
+	return current_mask & (current_mask >> 1);
+}
+
+static int check_results(struct resctrl_val_param *param, const char *cache_type,
+			 unsigned long cache_total_size, unsigned long full_cache_mask,
+			 unsigned long current_mask)
+{
+	char *token_array[8], temp[512];
+	__u64 sum_llc_perf_miss = 0;
+	__s64 prev_avg_llc_val = 0;
+	unsigned long alloc_size;
+	int runs = 0;
+	int fail = 0;
+	int ret;
+	FILE *fp;
+
+	ksft_print_msg("Checking for pass/fail\n");
+	fp = fopen(param->filename, "r");
+	if (!fp) {
+		ksft_perror("Cannot open file");
+
+		return -1;
+	}
+
+	while (fgets(temp, sizeof(temp), fp)) {
+		char *token = strtok(temp, ":\t");
+		int fields = 0;
+		int bits;
+
+		while (token) {
+			token_array[fields++] = token;
+			token = strtok(NULL, ":\t");
+		}
+
+		sum_llc_perf_miss += strtoull(token_array[3], NULL, 0);
+		runs++;
+
+		if (runs < NUM_OF_RUNS)
+			continue;
+
+		if (!current_mask) {
+			ksft_print_msg("Unexpected empty cache mask\n");
+			break;
+		}
+
+		alloc_size = cache_portion_size(cache_total_size, current_mask, full_cache_mask);
+
+		bits = count_bits(current_mask);
+
+		ret = show_results_info(sum_llc_perf_miss, bits,
+					alloc_size / 64,
+					MIN_DIFF_PERCENT_PER_BIT * (bits - 1),
+					runs, get_vendor() == ARCH_INTEL,
+					&prev_avg_llc_val);
+		if (ret)
+			fail = 1;
+
+		runs = 0;
+		sum_llc_perf_miss = 0;
+		current_mask = next_mask(current_mask);
+	}
+
+	fclose(fp);
+
+	return fail;
+}
+
+static void cat_test_cleanup(void)
+{
+	remove(RESULT_FILE_NAME);
+}
+
+/*
+ * cat_test - Execute CAT benchmark and measure cache misses
+ * @test:		Test information structure
+ * @uparams:		User supplied parameters
+ * @param:		Parameters passed to cat_test()
+ * @span:		Buffer size for the benchmark
+ * @current_mask	Start mask for the first iteration
+ *
+ * Run CAT selftest by varying the allocated cache portion and comparing the
+ * impact on cache misses (the result analysis is done in check_results()
+ * and show_results_info(), not in this function).
+ *
+ * One bit is removed from the CAT allocation bit mask (in current_mask) for
+ * each subsequent test which keeps reducing the size of the allocated cache
+ * portion. A single test flushes the buffer, reads it to warm up the cache,
+ * and reads the buffer again. The cache misses are measured during the last
+ * read pass.
+ *
+ * Return:		0 when the test was run, < 0 on error.
+ */
+static int cat_test(const struct resctrl_test *test,
+		    const struct user_params *uparams,
+		    struct resctrl_val_param *param,
+		    size_t span, unsigned long current_mask)
+{
+	struct perf_event_read pe_read;
+	struct perf_event_attr pea;
+	cpu_set_t old_affinity;
+	unsigned char *buf;
+	char schemata[64];
+	int ret, i, pe_fd;
+	pid_t bm_pid;
+
+	if (strcmp(param->filename, "") == 0)
+		sprintf(param->filename, "stdio");
+
+	bm_pid = getpid();
+
+	/* Taskset benchmark to specified cpu */
+	ret = taskset_benchmark(bm_pid, uparams->cpu, &old_affinity);
+	if (ret)
+		return ret;
+
+	/* Write benchmark to specified con_mon grp, mon_grp in resctrl FS*/
+	ret = write_bm_pid_to_resctrl(bm_pid, param->ctrlgrp, param->mongrp);
+	if (ret)
+		goto reset_affinity;
+
+	perf_event_attr_initialize(&pea, PERF_COUNT_HW_CACHE_MISSES);
+	perf_event_initialize_read_format(&pe_read);
+	pe_fd = perf_open(&pea, bm_pid, uparams->cpu);
+	if (pe_fd < 0) {
+		ret = -1;
+		goto reset_affinity;
+	}
+
+	buf = alloc_buffer(span, 1);
+	if (!buf) {
+		ret = -1;
+		goto pe_close;
+	}
+
+	while (current_mask) {
+		snprintf(schemata, sizeof(schemata), "%lx", param->mask & ~current_mask);
+		ret = write_schemata("", schemata, uparams->cpu, test->resource);
+		if (ret)
+			goto free_buf;
+		snprintf(schemata, sizeof(schemata), "%lx", current_mask);
+		ret = write_schemata(param->ctrlgrp, schemata, uparams->cpu, test->resource);
+		if (ret)
+			goto free_buf;
+
+		for (i = 0; i < NUM_OF_RUNS; i++) {
+			mem_flush(buf, span);
+			fill_cache_read(buf, span, true);
+
+			ret = perf_event_reset_enable(pe_fd);
+			if (ret)
+				goto free_buf;
+
+			fill_cache_read(buf, span, true);
+
+			ret = perf_event_measure(pe_fd, &pe_read, param->filename, bm_pid);
+			if (ret)
+				goto free_buf;
+		}
+		current_mask = next_mask(current_mask);
+	}
+
+free_buf:
+	free(buf);
+pe_close:
+	close(pe_fd);
+reset_affinity:
+	taskset_restore(bm_pid, &old_affinity);
+
+	return ret;
+}
+
+static int cat_run_test(const struct resctrl_test *test, const struct user_params *uparams)
+{
+	unsigned long long_mask, start_mask, full_cache_mask;
+	unsigned long cache_total_size = 0;
+	int n = uparams->bits;
+	unsigned int start;
+	int count_of_bits;
+	size_t span;
+	int ret;
+
+	ret = get_full_cbm(test->resource, &full_cache_mask);
+	if (ret)
+		return ret;
+	/* Get the largest contiguous exclusive portion of the cache */
+	ret = get_mask_no_shareable(test->resource, &long_mask);
+	if (ret)
+		return ret;
+
+	/* Get L3/L2 cache size */
+	ret = get_cache_size(uparams->cpu, test->resource, &cache_total_size);
+	if (ret)
+		return ret;
+	ksft_print_msg("Cache size :%lu\n", cache_total_size);
+
+	count_of_bits = count_contiguous_bits(long_mask, &start);
+
+	if (!n)
+		n = count_of_bits / 2;
+
+	if (n > count_of_bits - 1) {
+		ksft_print_msg("Invalid input value for no_of_bits n!\n");
+		ksft_print_msg("Please enter value in range 1 to %d\n",
+			       count_of_bits - 1);
+		return -1;
+	}
+	start_mask = create_bit_mask(start, n);
+
+	struct resctrl_val_param param = {
+		.ctrlgrp	= "c1",
+		.filename	= RESULT_FILE_NAME,
+		.num_of_runs	= 0,
+	};
+	param.mask = long_mask;
+	span = cache_portion_size(cache_total_size, start_mask, full_cache_mask);
+
+	remove(param.filename);
+
+	ret = cat_test(test, uparams, &param, span, start_mask);
+	if (ret)
+		return ret;
+
+	ret = check_results(&param, test->resource,
+			    cache_total_size, full_cache_mask, start_mask);
+	return ret;
+}
+
+static bool arch_supports_noncont_cat(const struct resctrl_test *test)
+{
+	/* AMD always supports non-contiguous CBM. */
+	if (get_vendor() == ARCH_AMD)
+		return true;
+
+#if defined(__i386__) || defined(__x86_64__) /* arch */
+	unsigned int eax, ebx, ecx, edx;
+	/* Intel support for non-contiguous CBM needs to be discovered. */
+	if (!strcmp(test->resource, "L3"))
+		__cpuid_count(0x10, 1, eax, ebx, ecx, edx);
+	else if (!strcmp(test->resource, "L2"))
+		__cpuid_count(0x10, 2, eax, ebx, ecx, edx);
+	else
+		return false;
+
+	return ((ecx >> 3) & 1);
+#endif /* end arch */
+
+	return false;
+}
+
+static int noncont_cat_run_test(const struct resctrl_test *test,
+				const struct user_params *uparams)
+{
+	unsigned long full_cache_mask, cont_mask, noncont_mask;
+	unsigned int sparse_masks;
+	int bit_center, ret;
+	char schemata[64];
+
+	/* Check to compare sparse_masks content to CPUID output. */
+	ret = resource_info_unsigned_get(test->resource, "sparse_masks", &sparse_masks);
+	if (ret)
+		return ret;
+
+	if (arch_supports_noncont_cat(test) != sparse_masks) {
+		ksft_print_msg("Hardware and kernel differ on non-contiguous CBM support!\n");
+		return 1;
+	}
+
+	/* Write checks initialization. */
+	ret = get_full_cbm(test->resource, &full_cache_mask);
+	if (ret < 0)
+		return ret;
+	bit_center = count_bits(full_cache_mask) / 2;
+
+	/*
+	 * The bit_center needs to be at least 3 to properly calculate the CBM
+	 * hole in the noncont_mask. If it's smaller return an error since the
+	 * cache mask is too short and that shouldn't happen.
+	 */
+	if (bit_center < 3)
+		return -EINVAL;
+	cont_mask = full_cache_mask >> bit_center;
+
+	/* Contiguous mask write check. */
+	snprintf(schemata, sizeof(schemata), "%lx", cont_mask);
+	ret = write_schemata("", schemata, uparams->cpu, test->resource);
+	if (ret) {
+		ksft_print_msg("Write of contiguous CBM failed\n");
+		return 1;
+	}
+
+	/*
+	 * Non-contiguous mask write check. CBM has a 0xf hole approximately in the middle.
+	 * Output is compared with support information to catch any edge case errors.
+	 */
+	noncont_mask = ~(0xfUL << (bit_center - 2)) & full_cache_mask;
+	snprintf(schemata, sizeof(schemata), "%lx", noncont_mask);
+	ret = write_schemata("", schemata, uparams->cpu, test->resource);
+	if (ret && sparse_masks)
+		ksft_print_msg("Non-contiguous CBMs supported but write of non-contiguous CBM failed\n");
+	else if (ret && !sparse_masks)
+		ksft_print_msg("Non-contiguous CBMs not supported and write of non-contiguous CBM failed as expected\n");
+	else if (!ret && !sparse_masks)
+		ksft_print_msg("Non-contiguous CBMs not supported but write of non-contiguous CBM succeeded\n");
+
+	return !ret == !sparse_masks;
+}
+
+static bool noncont_cat_feature_check(const struct resctrl_test *test)
+{
+	if (!resctrl_resource_exists(test->resource))
+		return false;
+
+	return resource_info_file_exists(test->resource, "sparse_masks");
+}
+
+struct resctrl_test l3_cat_test = {
+	.name = "L3_CAT",
+	.group = "CAT",
+	.resource = "L3",
+	.feature_check = test_resource_feature_check,
+	.run_test = cat_run_test,
+	.cleanup = cat_test_cleanup,
+};
+
+struct resctrl_test l3_noncont_cat_test = {
+	.name = "L3_NONCONT_CAT",
+	.group = "CAT",
+	.resource = "L3",
+	.feature_check = noncont_cat_feature_check,
+	.run_test = noncont_cat_run_test,
+};
+
+struct resctrl_test l2_noncont_cat_test = {
+	.name = "L2_NONCONT_CAT",
+	.group = "CAT",
+	.resource = "L2",
+	.feature_check = noncont_cat_feature_check,
+	.run_test = noncont_cat_run_test,
+};
diff --git a/tools/testing/selftests/resctrl/cmt_test.c b/tools/testing/selftests/resctrl/cmt_test.c
new file mode 100644
index 000000000000..d09e693dc739
--- /dev/null
+++ b/tools/testing/selftests/resctrl/cmt_test.c
@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Cache Monitoring Technology (CMT) test
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+#include <unistd.h>
+
+#define RESULT_FILE_NAME	"result_cmt"
+#define NUM_OF_RUNS		5
+#define MAX_DIFF		2000000
+#define MAX_DIFF_PERCENT	15
+
+#define CON_MON_LCC_OCCUP_PATH		\
+	"%s/%s/mon_data/mon_L3_%02d/llc_occupancy"
+
+static int cmt_init(const struct resctrl_val_param *param, int domain_id)
+{
+	sprintf(llc_occup_path, CON_MON_LCC_OCCUP_PATH, RESCTRL_PATH,
+		param->ctrlgrp, domain_id);
+
+	return 0;
+}
+
+static int cmt_setup(const struct resctrl_test *test,
+		     const struct user_params *uparams,
+		     struct resctrl_val_param *p)
+{
+	/* Run NUM_OF_RUNS times */
+	if (p->num_of_runs >= NUM_OF_RUNS)
+		return END_OF_TESTS;
+
+	p->num_of_runs++;
+
+	return 0;
+}
+
+static int cmt_measure(const struct user_params *uparams,
+		       struct resctrl_val_param *param, pid_t bm_pid)
+{
+	sleep(1);
+	return measure_llc_resctrl(param->filename, bm_pid);
+}
+
+static int show_results_info(unsigned long sum_llc_val, int no_of_bits,
+			     unsigned long cache_span, unsigned long max_diff,
+			     unsigned long max_diff_percent, unsigned long num_of_runs,
+			     bool platform)
+{
+	unsigned long avg_llc_val = 0;
+	float diff_percent;
+	long avg_diff = 0;
+	int ret;
+
+	avg_llc_val = sum_llc_val / num_of_runs;
+	avg_diff = (long)(cache_span - avg_llc_val);
+	diff_percent = ((float)cache_span - avg_llc_val) / cache_span * 100;
+
+	ret = platform && abs((int)diff_percent) > max_diff_percent &&
+	      labs(avg_diff) > max_diff;
+
+	ksft_print_msg("%s Check cache miss rate within %lu%%\n",
+		       ret ? "Fail:" : "Pass:", max_diff_percent);
+
+	ksft_print_msg("Percent diff=%d\n", abs((int)diff_percent));
+
+	show_cache_info(no_of_bits, avg_llc_val, cache_span, false);
+
+	return ret;
+}
+
+static int check_results(struct resctrl_val_param *param, size_t span, int no_of_bits)
+{
+	char *token_array[8], temp[512];
+	unsigned long sum_llc_occu_resc = 0;
+	int runs = 0;
+	FILE *fp;
+
+	ksft_print_msg("Checking for pass/fail\n");
+	fp = fopen(param->filename, "r");
+	if (!fp) {
+		ksft_perror("Error in opening file");
+
+		return -1;
+	}
+
+	while (fgets(temp, sizeof(temp), fp)) {
+		char *token = strtok(temp, ":\t");
+		int fields = 0;
+
+		while (token) {
+			token_array[fields++] = token;
+			token = strtok(NULL, ":\t");
+		}
+
+		/* Field 3 is llc occ resc value */
+		sum_llc_occu_resc += strtoul(token_array[3], NULL, 0);
+		runs++;
+	}
+	fclose(fp);
+
+	return show_results_info(sum_llc_occu_resc, no_of_bits, span,
+				 MAX_DIFF, MAX_DIFF_PERCENT, runs, true);
+}
+
+static void cmt_test_cleanup(void)
+{
+	remove(RESULT_FILE_NAME);
+}
+
+static int cmt_run_test(const struct resctrl_test *test, const struct user_params *uparams)
+{
+	struct fill_buf_param fill_buf = {};
+	unsigned long cache_total_size = 0;
+	int n = uparams->bits ? : 5;
+	unsigned long long_mask;
+	int count_of_bits;
+	size_t span;
+	int ret;
+
+	ret = get_full_cbm("L3", &long_mask);
+	if (ret)
+		return ret;
+
+	ret = get_cache_size(uparams->cpu, "L3", &cache_total_size);
+	if (ret)
+		return ret;
+	ksft_print_msg("Cache size :%lu\n", cache_total_size);
+
+	count_of_bits = count_bits(long_mask);
+
+	if (n < 1 || n > count_of_bits) {
+		ksft_print_msg("Invalid input value for numbr_of_bits n!\n");
+		ksft_print_msg("Please enter value in range 1 to %d\n", count_of_bits);
+		return -1;
+	}
+
+	struct resctrl_val_param param = {
+		.ctrlgrp	= "c1",
+		.filename	= RESULT_FILE_NAME,
+		.mask		= ~(long_mask << n) & long_mask,
+		.num_of_runs	= 0,
+		.init		= cmt_init,
+		.setup		= cmt_setup,
+		.measure	= cmt_measure,
+	};
+
+	span = cache_portion_size(cache_total_size, param.mask, long_mask);
+
+	if (uparams->fill_buf) {
+		fill_buf.buf_size = span;
+		fill_buf.memflush = uparams->fill_buf->memflush;
+		param.fill_buf = &fill_buf;
+	} else if (!uparams->benchmark_cmd[0]) {
+		fill_buf.buf_size = span;
+		fill_buf.memflush = true;
+		param.fill_buf = &fill_buf;
+	}
+
+	remove(RESULT_FILE_NAME);
+
+	ret = resctrl_val(test, uparams, &param);
+	if (ret)
+		return ret;
+
+	ret = check_results(&param, span, n);
+	if (ret && (get_vendor() == ARCH_INTEL) && !snc_kernel_support())
+		ksft_print_msg("Kernel doesn't support Sub-NUMA Clustering but it is enabled on the system.\n");
+
+	return ret;
+}
+
+static bool cmt_feature_check(const struct resctrl_test *test)
+{
+	return test_resource_feature_check(test) &&
+	       resctrl_mon_feature_exists("L3_MON", "llc_occupancy");
+}
+
+struct resctrl_test cmt_test = {
+	.name = "CMT",
+	.resource = "L3",
+	.feature_check = cmt_feature_check,
+	.run_test = cmt_run_test,
+	.cleanup = cmt_test_cleanup,
+};
diff --git a/tools/testing/selftests/resctrl/config b/tools/testing/selftests/resctrl/config
new file mode 100644
index 000000000000..8d9f2deb56ed
--- /dev/null
+++ b/tools/testing/selftests/resctrl/config
@@ -0,0 +1,2 @@
+CONFIG_X86_CPU_RESCTRL=y
+CONFIG_PROC_CPU_RESCTRL=y
diff --git a/tools/testing/selftests/resctrl/fill_buf.c b/tools/testing/selftests/resctrl/fill_buf.c
new file mode 100644
index 000000000000..19a01a52dc1a
--- /dev/null
+++ b/tools/testing/selftests/resctrl/fill_buf.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * fill_buf benchmark
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <inttypes.h>
+#include <string.h>
+
+#include "resctrl.h"
+
+#define CL_SIZE			(64)
+#define PAGE_SIZE		(4 * 1024)
+#define MB			(1024 * 1024)
+
+static void sb(void)
+{
+#if defined(__i386) || defined(__x86_64)
+	asm volatile("sfence\n\t"
+		     : : : "memory");
+#endif
+}
+
+static void cl_flush(void *p)
+{
+#if defined(__i386) || defined(__x86_64)
+	asm volatile("clflush (%0)\n\t"
+		     : : "r"(p) : "memory");
+#endif
+}
+
+void mem_flush(unsigned char *buf, size_t buf_size)
+{
+	unsigned char *cp = buf;
+	size_t i = 0;
+
+	buf_size = buf_size / CL_SIZE; /* mem size in cache lines */
+
+	for (i = 0; i < buf_size; i++)
+		cl_flush(&cp[i * CL_SIZE]);
+
+	sb();
+}
+
+/*
+ * Buffer index step advance to workaround HW prefetching interfering with
+ * the measurements.
+ *
+ * Must be a prime to step through all indexes of the buffer.
+ *
+ * Some primes work better than others on some architectures (from MBA/MBM
+ * result stability point of view).
+ */
+#define FILL_IDX_MULT	23
+
+static int fill_one_span_read(unsigned char *buf, size_t buf_size)
+{
+	unsigned int size = buf_size / (CL_SIZE / 2);
+	unsigned int i, idx = 0;
+	unsigned char sum = 0;
+
+	/*
+	 * Read the buffer in an order that is unexpected by HW prefetching
+	 * optimizations to prevent them interfering with the caching pattern.
+	 *
+	 * The read order is (in terms of halves of cachelines):
+	 *	i * FILL_IDX_MULT % size
+	 * The formula is open-coded below to avoiding modulo inside the loop
+	 * as it improves MBA/MBM result stability on some architectures.
+	 */
+	for (i = 0; i < size; i++) {
+		sum += buf[idx * (CL_SIZE / 2)];
+
+		idx += FILL_IDX_MULT;
+		while (idx >= size)
+			idx -= size;
+	}
+
+	return sum;
+}
+
+void fill_cache_read(unsigned char *buf, size_t buf_size, bool once)
+{
+	int ret = 0;
+
+	while (1) {
+		ret = fill_one_span_read(buf, buf_size);
+		if (once)
+			break;
+	}
+
+	/* Consume read result so that reading memory is not optimized out. */
+	*value_sink = ret;
+}
+
+unsigned char *alloc_buffer(size_t buf_size, bool memflush)
+{
+	void *buf = NULL;
+	uint64_t *p64;
+	ssize_t s64;
+	int ret;
+
+	ret = posix_memalign(&buf, PAGE_SIZE, buf_size);
+	if (ret < 0)
+		return NULL;
+
+	/* Initialize the buffer */
+	p64 = buf;
+	s64 = buf_size / sizeof(uint64_t);
+
+	while (s64 > 0) {
+		*p64 = (uint64_t)rand();
+		p64 += (CL_SIZE / sizeof(uint64_t));
+		s64 -= (CL_SIZE / sizeof(uint64_t));
+	}
+
+	/* Flush the memory before using to avoid "cache hot pages" effect */
+	if (memflush)
+		mem_flush(buf, buf_size);
+
+	return buf;
+}
+
+ssize_t get_fill_buf_size(int cpu_no, const char *cache_type)
+{
+	unsigned long cache_total_size = 0;
+	int ret;
+
+	ret = get_cache_size(cpu_no, cache_type, &cache_total_size);
+	if (ret)
+		return ret;
+
+	return cache_total_size * 2 > MINIMUM_SPAN ?
+			cache_total_size * 2 : MINIMUM_SPAN;
+}
diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
new file mode 100644
index 000000000000..c7e9adc0368f
--- /dev/null
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Memory Bandwidth Allocation (MBA) test
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+
+#define RESULT_FILE_NAME	"result_mba"
+#define NUM_OF_RUNS		5
+#define MAX_DIFF_PERCENT	8
+#define ALLOCATION_MAX		100
+#define ALLOCATION_MIN		10
+#define ALLOCATION_STEP		10
+
+static int mba_init(const struct resctrl_val_param *param, int domain_id)
+{
+	int ret;
+
+	ret = initialize_read_mem_bw_imc();
+	if (ret)
+		return ret;
+
+	initialize_mem_bw_resctrl(param, domain_id);
+
+	return 0;
+}
+
+/*
+ * Change schemata percentage from 100 to 10%. Write schemata to specified
+ * con_mon grp, mon_grp in resctrl FS.
+ * For each allocation, run 5 times in order to get average values.
+ */
+static int mba_setup(const struct resctrl_test *test,
+		     const struct user_params *uparams,
+		     struct resctrl_val_param *p)
+{
+	static unsigned int allocation = ALLOCATION_MIN;
+	static int runs_per_allocation;
+	char allocation_str[64];
+	int ret;
+
+	if (runs_per_allocation >= NUM_OF_RUNS)
+		runs_per_allocation = 0;
+
+	/* Only set up schemata once every NUM_OF_RUNS of allocations */
+	if (runs_per_allocation++ != 0)
+		return 0;
+
+	if (allocation > ALLOCATION_MAX)
+		return END_OF_TESTS;
+
+	sprintf(allocation_str, "%d", allocation);
+
+	ret = write_schemata(p->ctrlgrp, allocation_str, uparams->cpu, test->resource);
+	if (ret < 0)
+		return ret;
+
+	allocation += ALLOCATION_STEP;
+
+	return 0;
+}
+
+static int mba_measure(const struct user_params *uparams,
+		       struct resctrl_val_param *param, pid_t bm_pid)
+{
+	return measure_read_mem_bw(uparams, param, bm_pid);
+}
+
+static bool show_mba_info(unsigned long *bw_imc, unsigned long *bw_resc)
+{
+	unsigned int allocation;
+	bool ret = false;
+	int runs;
+
+	ksft_print_msg("Results are displayed in (MB)\n");
+	/* Memory bandwidth from 100% down to 10% */
+	for (allocation = 0; allocation < ALLOCATION_MAX / ALLOCATION_STEP;
+	     allocation++) {
+		unsigned long sum_bw_imc = 0, sum_bw_resc = 0;
+		long avg_bw_imc, avg_bw_resc;
+		int avg_diff_per;
+		float avg_diff;
+
+		for (runs = NUM_OF_RUNS * allocation;
+		     runs < NUM_OF_RUNS * allocation + NUM_OF_RUNS ; runs++) {
+			sum_bw_imc += bw_imc[runs];
+			sum_bw_resc += bw_resc[runs];
+		}
+
+		avg_bw_imc = sum_bw_imc / NUM_OF_RUNS;
+		avg_bw_resc = sum_bw_resc / NUM_OF_RUNS;
+		if (avg_bw_imc < THROTTLE_THRESHOLD || avg_bw_resc < THROTTLE_THRESHOLD) {
+			ksft_print_msg("Bandwidth below threshold (%d MiB). Dropping results from MBA schemata %u.\n",
+				       THROTTLE_THRESHOLD,
+				       ALLOCATION_MIN + ALLOCATION_STEP * allocation);
+			continue;
+		}
+
+		avg_diff = (float)labs(avg_bw_resc - avg_bw_imc) / avg_bw_imc;
+		avg_diff_per = (int)(avg_diff * 100);
+
+		ksft_print_msg("%s Check MBA diff within %d%% for schemata %u\n",
+			       avg_diff_per > MAX_DIFF_PERCENT ?
+			       "Fail:" : "Pass:",
+			       MAX_DIFF_PERCENT,
+			       ALLOCATION_MIN + ALLOCATION_STEP * allocation);
+
+		ksft_print_msg("avg_diff_per: %d%%\n", avg_diff_per);
+		ksft_print_msg("avg_bw_imc: %lu\n", avg_bw_imc);
+		ksft_print_msg("avg_bw_resc: %lu\n", avg_bw_resc);
+		if (avg_diff_per > MAX_DIFF_PERCENT)
+			ret = true;
+	}
+
+	ksft_print_msg("%s Check schemata change using MBA\n",
+		       ret ? "Fail:" : "Pass:");
+	if (ret)
+		ksft_print_msg("At least one test failed\n");
+
+	return ret;
+}
+
+static int check_results(void)
+{
+	unsigned long bw_resc[NUM_OF_RUNS * ALLOCATION_MAX / ALLOCATION_STEP];
+	unsigned long bw_imc[NUM_OF_RUNS * ALLOCATION_MAX / ALLOCATION_STEP];
+	char *token_array[8], output[] = RESULT_FILE_NAME, temp[512];
+	int runs;
+	FILE *fp;
+
+	fp = fopen(output, "r");
+	if (!fp) {
+		ksft_perror(output);
+
+		return -1;
+	}
+
+	runs = 0;
+	while (fgets(temp, sizeof(temp), fp)) {
+		char *token = strtok(temp, ":\t");
+		int fields = 0;
+
+		while (token) {
+			token_array[fields++] = token;
+			token = strtok(NULL, ":\t");
+		}
+
+		/* Field 3 is perf imc value */
+		bw_imc[runs] = strtoul(token_array[3], NULL, 0);
+		/* Field 5 is resctrl value */
+		bw_resc[runs] = strtoul(token_array[5], NULL, 0);
+		runs++;
+	}
+
+	fclose(fp);
+
+	return show_mba_info(bw_imc, bw_resc);
+}
+
+static void mba_test_cleanup(void)
+{
+	remove(RESULT_FILE_NAME);
+}
+
+static int mba_run_test(const struct resctrl_test *test, const struct user_params *uparams)
+{
+	struct resctrl_val_param param = {
+		.ctrlgrp	= "c1",
+		.filename	= RESULT_FILE_NAME,
+		.init		= mba_init,
+		.setup		= mba_setup,
+		.measure	= mba_measure,
+	};
+	struct fill_buf_param fill_buf = {};
+	int ret;
+
+	remove(RESULT_FILE_NAME);
+
+	if (uparams->fill_buf) {
+		fill_buf.buf_size = uparams->fill_buf->buf_size;
+		fill_buf.memflush = uparams->fill_buf->memflush;
+		param.fill_buf = &fill_buf;
+	} else if (!uparams->benchmark_cmd[0]) {
+		ssize_t buf_size;
+
+		buf_size = get_fill_buf_size(uparams->cpu, "L3");
+		if (buf_size < 0)
+			return buf_size;
+		fill_buf.buf_size = buf_size;
+		fill_buf.memflush = true;
+		param.fill_buf = &fill_buf;
+	}
+
+	ret = resctrl_val(test, uparams, &param);
+	if (ret)
+		return ret;
+
+	ret = check_results();
+	if (ret && (get_vendor() == ARCH_INTEL) && !snc_kernel_support())
+		ksft_print_msg("Kernel doesn't support Sub-NUMA Clustering but it is enabled on the system.\n");
+
+	return ret;
+}
+
+static bool mba_feature_check(const struct resctrl_test *test)
+{
+	return test_resource_feature_check(test) &&
+	       resctrl_mon_feature_exists("L3_MON", "mbm_local_bytes");
+}
+
+struct resctrl_test mba_test = {
+	.name = "MBA",
+	.resource = "MB",
+	.vendor_specific = ARCH_INTEL,
+	.feature_check = mba_feature_check,
+	.run_test = mba_run_test,
+	.cleanup = mba_test_cleanup,
+};
diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
new file mode 100644
index 000000000000..84d8bc250539
--- /dev/null
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -0,0 +1,182 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Memory Bandwidth Monitoring (MBM) test
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+
+#define RESULT_FILE_NAME	"result_mbm"
+#define MAX_DIFF_PERCENT	8
+#define NUM_OF_RUNS		5
+
+static int
+show_bw_info(unsigned long *bw_imc, unsigned long *bw_resc, size_t span)
+{
+	unsigned long sum_bw_imc = 0, sum_bw_resc = 0;
+	long avg_bw_imc = 0, avg_bw_resc = 0;
+	int runs, ret, avg_diff_per;
+	float avg_diff = 0;
+
+	for (runs = 0; runs < NUM_OF_RUNS; runs++) {
+		sum_bw_imc += bw_imc[runs];
+		sum_bw_resc += bw_resc[runs];
+	}
+
+	avg_bw_imc = sum_bw_imc / NUM_OF_RUNS;
+	avg_bw_resc = sum_bw_resc / NUM_OF_RUNS;
+	avg_diff = (float)labs(avg_bw_resc - avg_bw_imc) / avg_bw_imc;
+	avg_diff_per = (int)(avg_diff * 100);
+
+	ret = avg_diff_per > MAX_DIFF_PERCENT;
+	ksft_print_msg("%s Check MBM diff within %d%%\n",
+		       ret ? "Fail:" : "Pass:", MAX_DIFF_PERCENT);
+	ksft_print_msg("avg_diff_per: %d%%\n", avg_diff_per);
+	if (span)
+		ksft_print_msg("Span (MB): %zu\n", span / MB);
+	ksft_print_msg("avg_bw_imc: %lu\n", avg_bw_imc);
+	ksft_print_msg("avg_bw_resc: %lu\n", avg_bw_resc);
+
+	return ret;
+}
+
+static int check_results(size_t span)
+{
+	unsigned long bw_imc[NUM_OF_RUNS], bw_resc[NUM_OF_RUNS];
+	char temp[1024], *token_array[8];
+	char output[] = RESULT_FILE_NAME;
+	int runs, ret;
+	FILE *fp;
+
+	ksft_print_msg("Checking for pass/fail\n");
+
+	fp = fopen(output, "r");
+	if (!fp) {
+		ksft_perror(output);
+
+		return -1;
+	}
+
+	runs = 0;
+	while (fgets(temp, sizeof(temp), fp)) {
+		char *token = strtok(temp, ":\t");
+		int i = 0;
+
+		while (token) {
+			token_array[i++] = token;
+			token = strtok(NULL, ":\t");
+		}
+
+		bw_resc[runs] = strtoul(token_array[5], NULL, 0);
+		bw_imc[runs] = strtoul(token_array[3], NULL, 0);
+		runs++;
+	}
+
+	ret = show_bw_info(bw_imc, bw_resc, span);
+
+	fclose(fp);
+
+	return ret;
+}
+
+static int mbm_init(const struct resctrl_val_param *param, int domain_id)
+{
+	int ret;
+
+	ret = initialize_read_mem_bw_imc();
+	if (ret)
+		return ret;
+
+	initialize_mem_bw_resctrl(param, domain_id);
+
+	return 0;
+}
+
+static int mbm_setup(const struct resctrl_test *test,
+		     const struct user_params *uparams,
+		     struct resctrl_val_param *p)
+{
+	int ret = 0;
+
+	/* Run NUM_OF_RUNS times */
+	if (p->num_of_runs >= NUM_OF_RUNS)
+		return END_OF_TESTS;
+
+	/* Set up shemata with 100% allocation on the first run. */
+	if (p->num_of_runs == 0 && resctrl_resource_exists("MB"))
+		ret = write_schemata(p->ctrlgrp, "100", uparams->cpu, test->resource);
+
+	p->num_of_runs++;
+
+	return ret;
+}
+
+static int mbm_measure(const struct user_params *uparams,
+		       struct resctrl_val_param *param, pid_t bm_pid)
+{
+	return measure_read_mem_bw(uparams, param, bm_pid);
+}
+
+static void mbm_test_cleanup(void)
+{
+	remove(RESULT_FILE_NAME);
+}
+
+static int mbm_run_test(const struct resctrl_test *test, const struct user_params *uparams)
+{
+	struct resctrl_val_param param = {
+		.ctrlgrp	= "c1",
+		.filename	= RESULT_FILE_NAME,
+		.init		= mbm_init,
+		.setup		= mbm_setup,
+		.measure	= mbm_measure,
+	};
+	struct fill_buf_param fill_buf = {};
+	int ret;
+
+	remove(RESULT_FILE_NAME);
+
+	if (uparams->fill_buf) {
+		fill_buf.buf_size = uparams->fill_buf->buf_size;
+		fill_buf.memflush = uparams->fill_buf->memflush;
+		param.fill_buf = &fill_buf;
+	} else if (!uparams->benchmark_cmd[0]) {
+		ssize_t buf_size;
+
+		buf_size = get_fill_buf_size(uparams->cpu, "L3");
+		if (buf_size < 0)
+			return buf_size;
+		fill_buf.buf_size = buf_size;
+		fill_buf.memflush = true;
+		param.fill_buf = &fill_buf;
+	}
+
+	ret = resctrl_val(test, uparams, &param);
+	if (ret)
+		return ret;
+
+	ret = check_results(param.fill_buf ? param.fill_buf->buf_size : 0);
+	if (ret && (get_vendor() == ARCH_INTEL) && !snc_kernel_support())
+		ksft_print_msg("Kernel doesn't support Sub-NUMA Clustering but it is enabled on the system.\n");
+
+	return ret;
+}
+
+static bool mbm_feature_check(const struct resctrl_test *test)
+{
+	return resctrl_mon_feature_exists("L3_MON", "mbm_total_bytes") &&
+	       resctrl_mon_feature_exists("L3_MON", "mbm_local_bytes");
+}
+
+struct resctrl_test mbm_test = {
+	.name = "MBM",
+	.resource = "MB",
+	.vendor_specific = ARCH_INTEL,
+	.feature_check = mbm_feature_check,
+	.run_test = mbm_run_test,
+	.cleanup = mbm_test_cleanup,
+};
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
new file mode 100644
index 000000000000..3c51bdac2dfa
--- /dev/null
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -0,0 +1,248 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef RESCTRL_H
+#define RESCTRL_H
+#include <stdio.h>
+#include <math.h>
+#include <errno.h>
+#include <sched.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <signal.h>
+#include <dirent.h>
+#include <stdbool.h>
+#include <ctype.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/mount.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/select.h>
+#include <sys/time.h>
+#include <sys/eventfd.h>
+#include <asm/unistd.h>
+#include <linux/perf_event.h>
+#include <linux/compiler.h>
+#include "kselftest.h"
+
+#define MB			(1024 * 1024)
+#define RESCTRL_PATH		"/sys/fs/resctrl"
+#define PHYS_ID_PATH		"/sys/devices/system/cpu/cpu"
+#define INFO_PATH		"/sys/fs/resctrl/info"
+
+/*
+ * CPU vendor IDs
+ *
+ * Define as bits because they're used for vendor_specific bitmask in
+ * the struct resctrl_test.
+ */
+#define ARCH_INTEL     1
+#define ARCH_AMD       2
+
+#define END_OF_TESTS	1
+
+#define BENCHMARK_ARGS		64
+
+#define MINIMUM_SPAN		(250 * MB)
+
+/*
+ * Memory bandwidth (in MiB) below which the bandwidth comparisons
+ * between iMC and resctrl are considered unreliable. For example RAS
+ * features or memory performance features that generate memory traffic
+ * may drive accesses that are counted differently by performance counters
+ * and MBM respectively, for instance generating "overhead" traffic which
+ * is not counted against any specific RMID.
+ */
+#define THROTTLE_THRESHOLD	750
+
+/*
+ * fill_buf_param:	"fill_buf" benchmark parameters
+ * @buf_size:		Size (in bytes) of buffer used in benchmark.
+ *			"fill_buf" allocates and initializes buffer of
+ *			@buf_size. User can change value via command line.
+ * @memflush:		If false the buffer will not be flushed after
+ *			allocation and initialization, otherwise the
+ *			buffer will be flushed. User can change value via
+ *			command line (via integers with 0 interpreted as
+ *			false and anything else as true).
+ */
+struct fill_buf_param {
+	size_t		buf_size;
+	bool		memflush;
+};
+
+/*
+ * user_params:		User supplied parameters
+ * @cpu:		CPU number to which the benchmark will be bound to
+ * @bits:		Number of bits used for cache allocation size
+ * @benchmark_cmd:	Benchmark command to run during (some of the) tests
+ * @fill_buf:		Pointer to user provided parameters for "fill_buf",
+ *			NULL if user did not provide parameters and test
+ *			specific defaults should be used.
+ */
+struct user_params {
+	int cpu;
+	int bits;
+	const char *benchmark_cmd[BENCHMARK_ARGS];
+	const struct fill_buf_param *fill_buf;
+};
+
+/*
+ * resctrl_test:	resctrl test definition
+ * @name:		Test name
+ * @group:		Test group - a common name for tests that share some characteristic
+ *			(e.g., L3 CAT test belongs to the CAT group). Can be NULL
+ * @resource:		Resource to test (e.g., MB, L3, L2, etc.)
+ * @vendor_specific:	Bitmask for vendor-specific tests (can be 0 for universal tests)
+ * @disabled:		Test is disabled
+ * @feature_check:	Callback to check required resctrl features
+ * @run_test:		Callback to run the test
+ * @cleanup:		Callback to cleanup after the test
+ */
+struct resctrl_test {
+	const char	*name;
+	const char	*group;
+	const char	*resource;
+	unsigned int	vendor_specific;
+	bool		disabled;
+	bool		(*feature_check)(const struct resctrl_test *test);
+	int		(*run_test)(const struct resctrl_test *test,
+				    const struct user_params *uparams);
+	void		(*cleanup)(void);
+};
+
+/*
+ * resctrl_val_param:	resctrl test parameters
+ * @ctrlgrp:		Name of the control monitor group (con_mon grp)
+ * @mongrp:		Name of the monitor group (mon grp)
+ * @filename:		Name of file to which the o/p should be written
+ * @init:		Callback function to initialize test environment
+ * @setup:		Callback function to setup per test run environment
+ * @measure:		Callback that performs the measurement (a single test)
+ * @fill_buf:		Parameters for default "fill_buf" benchmark.
+ *			Initialized with user provided parameters, possibly
+ *			adapted to be relevant to the test. If user does
+ *			not provide parameters for "fill_buf" nor a
+ *			replacement benchmark then initialized with defaults
+ *			appropriate for test. NULL if user provided
+ *			benchmark.
+ */
+struct resctrl_val_param {
+	const char		*ctrlgrp;
+	const char		*mongrp;
+	char			filename[64];
+	unsigned long		mask;
+	int			num_of_runs;
+	int			(*init)(const struct resctrl_val_param *param,
+					int domain_id);
+	int			(*setup)(const struct resctrl_test *test,
+					 const struct user_params *uparams,
+					 struct resctrl_val_param *param);
+	int			(*measure)(const struct user_params *uparams,
+					   struct resctrl_val_param *param,
+					   pid_t bm_pid);
+	struct fill_buf_param	*fill_buf;
+};
+
+struct perf_event_read {
+	__u64 nr;			/* The number of events */
+	struct {
+		__u64 value;		/* The value of the event */
+	} values[2];
+};
+
+/*
+ * Memory location that consumes values compiler must not optimize away.
+ * Volatile ensures writes to this location cannot be optimized away by
+ * compiler.
+ */
+extern volatile int *value_sink;
+
+extern int snc_unreliable;
+
+extern char llc_occup_path[1024];
+
+int snc_nodes_per_l3_cache(void);
+int get_vendor(void);
+bool check_resctrlfs_support(void);
+int filter_dmesg(void);
+int get_domain_id(const char *resource, int cpu_no, int *domain_id);
+int mount_resctrlfs(void);
+int umount_resctrlfs(void);
+bool resctrl_resource_exists(const char *resource);
+bool resctrl_mon_feature_exists(const char *resource, const char *feature);
+bool resource_info_file_exists(const char *resource, const char *file);
+bool test_resource_feature_check(const struct resctrl_test *test);
+char *fgrep(FILE *inf, const char *str);
+int taskset_benchmark(pid_t bm_pid, int cpu_no, cpu_set_t *old_affinity);
+int taskset_restore(pid_t bm_pid, cpu_set_t *old_affinity);
+int write_schemata(const char *ctrlgrp, char *schemata, int cpu_no,
+		   const char *resource);
+int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongrp);
+int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu,
+		    int group_fd, unsigned long flags);
+unsigned char *alloc_buffer(size_t buf_size, bool memflush);
+void mem_flush(unsigned char *buf, size_t buf_size);
+void fill_cache_read(unsigned char *buf, size_t buf_size, bool once);
+ssize_t get_fill_buf_size(int cpu_no, const char *cache_type);
+int initialize_read_mem_bw_imc(void);
+int measure_read_mem_bw(const struct user_params *uparams,
+			struct resctrl_val_param *param, pid_t bm_pid);
+void initialize_mem_bw_resctrl(const struct resctrl_val_param *param,
+			       int domain_id);
+int resctrl_val(const struct resctrl_test *test,
+		const struct user_params *uparams,
+		struct resctrl_val_param *param);
+unsigned long create_bit_mask(unsigned int start, unsigned int len);
+unsigned int count_contiguous_bits(unsigned long val, unsigned int *start);
+int get_full_cbm(const char *cache_type, unsigned long *mask);
+int get_mask_no_shareable(const char *cache_type, unsigned long *mask);
+int get_cache_size(int cpu_no, const char *cache_type, unsigned long *cache_size);
+int resource_info_unsigned_get(const char *resource, const char *filename, unsigned int *val);
+void ctrlc_handler(int signum, siginfo_t *info, void *ptr);
+int signal_handler_register(const struct resctrl_test *test);
+void signal_handler_unregister(void);
+unsigned int count_bits(unsigned long n);
+int snc_kernel_support(void);
+
+void perf_event_attr_initialize(struct perf_event_attr *pea, __u64 config);
+void perf_event_initialize_read_format(struct perf_event_read *pe_read);
+int perf_open(struct perf_event_attr *pea, pid_t pid, int cpu_no);
+int perf_event_reset_enable(int pe_fd);
+int perf_event_measure(int pe_fd, struct perf_event_read *pe_read,
+		       const char *filename, pid_t bm_pid);
+int measure_llc_resctrl(const char *filename, pid_t bm_pid);
+void show_cache_info(int no_of_bits, __u64 avg_llc_val, size_t cache_span, bool lines);
+
+/*
+ * cache_portion_size - Calculate the size of a cache portion
+ * @cache_size:		Total cache size in bytes
+ * @portion_mask:	Cache portion mask
+ * @full_cache_mask:	Full Cache Bit Mask (CBM) for the cache
+ *
+ * Return: The size of the cache portion in bytes.
+ */
+static inline unsigned long cache_portion_size(unsigned long cache_size,
+					       unsigned long portion_mask,
+					       unsigned long full_cache_mask)
+{
+	unsigned int bits = count_bits(full_cache_mask);
+
+	/*
+	 * With no bits the full CBM, assume cache cannot be split into
+	 * smaller portions. To avoid divide by zero, return cache_size.
+	 */
+	if (!bits)
+		return cache_size;
+
+	return cache_size * count_bits(portion_mask) / bits;
+}
+
+extern struct resctrl_test mbm_test;
+extern struct resctrl_test mba_test;
+extern struct resctrl_test cmt_test;
+extern struct resctrl_test l3_cat_test;
+extern struct resctrl_test l3_noncont_cat_test;
+extern struct resctrl_test l2_noncont_cat_test;
+
+#endif /* RESCTRL_H */
diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
new file mode 100644
index 000000000000..5154ffd821c4
--- /dev/null
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -0,0 +1,350 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Resctrl tests
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+
+/* Volatile memory sink to prevent compiler optimizations */
+static volatile int sink_target;
+volatile int *value_sink = &sink_target;
+
+static struct resctrl_test *resctrl_tests[] = {
+	&mbm_test,
+	&mba_test,
+	&cmt_test,
+	&l3_cat_test,
+	&l3_noncont_cat_test,
+	&l2_noncont_cat_test,
+};
+
+static int detect_vendor(void)
+{
+	FILE *inf = fopen("/proc/cpuinfo", "r");
+	int vendor_id = 0;
+	char *s = NULL;
+	char *res;
+
+	if (!inf)
+		return vendor_id;
+
+	res = fgrep(inf, "vendor_id");
+
+	if (res)
+		s = strchr(res, ':');
+
+	if (s && !strcmp(s, ": GenuineIntel\n"))
+		vendor_id = ARCH_INTEL;
+	else if (s && !strcmp(s, ": AuthenticAMD\n"))
+		vendor_id = ARCH_AMD;
+
+	fclose(inf);
+	free(res);
+	return vendor_id;
+}
+
+int get_vendor(void)
+{
+	static int vendor = -1;
+
+	if (vendor == -1)
+		vendor = detect_vendor();
+	if (vendor == 0)
+		ksft_print_msg("Can not get vendor info...\n");
+
+	return vendor;
+}
+
+static void cmd_help(void)
+{
+	int i;
+
+	printf("usage: resctrl_tests [-h] [-t test list] [-n no_of_bits] [-b benchmark_cmd [option]...]\n");
+	printf("\t-b benchmark_cmd [option]...: run specified benchmark for MBM, MBA and CMT\n");
+	printf("\t   default benchmark is builtin fill_buf\n");
+	printf("\t-t test list: run tests/groups specified by the list, ");
+	printf("e.g. -t mbm,mba,cmt,cat\n");
+	printf("\t\tSupported tests (group):\n");
+	for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++) {
+		if (resctrl_tests[i]->group)
+			printf("\t\t\t%s (%s)\n", resctrl_tests[i]->name, resctrl_tests[i]->group);
+		else
+			printf("\t\t\t%s\n", resctrl_tests[i]->name);
+	}
+	printf("\t-n no_of_bits: run cache tests using specified no of bits in cache bit mask\n");
+	printf("\t-p cpu_no: specify CPU number to run the test. 1 is default\n");
+	printf("\t-h: help\n");
+}
+
+static int test_prepare(const struct resctrl_test *test)
+{
+	int res;
+
+	res = signal_handler_register(test);
+	if (res) {
+		ksft_print_msg("Failed to register signal handler\n");
+		return res;
+	}
+
+	res = mount_resctrlfs();
+	if (res) {
+		signal_handler_unregister();
+		ksft_print_msg("Failed to mount resctrl FS\n");
+		return res;
+	}
+	return 0;
+}
+
+static void test_cleanup(const struct resctrl_test *test)
+{
+	if (test->cleanup)
+		test->cleanup();
+	umount_resctrlfs();
+	signal_handler_unregister();
+}
+
+static bool test_vendor_specific_check(const struct resctrl_test *test)
+{
+	if (!test->vendor_specific)
+		return true;
+
+	return get_vendor() & test->vendor_specific;
+}
+
+static void run_single_test(const struct resctrl_test *test, const struct user_params *uparams)
+{
+	int ret, snc_mode;
+
+	if (test->disabled)
+		return;
+
+	if (!test_vendor_specific_check(test)) {
+		ksft_test_result_skip("Hardware does not support %s\n", test->name);
+		return;
+	}
+
+	snc_mode = snc_nodes_per_l3_cache();
+
+	ksft_print_msg("Starting %s test ...\n", test->name);
+
+	if (snc_mode == 1 && snc_unreliable && get_vendor() == ARCH_INTEL) {
+		ksft_test_result_skip("SNC detection unreliable due to offline CPUs. Test results may not be accurate if SNC enabled.\n");
+		return;
+	}
+
+	if (test_prepare(test)) {
+		ksft_exit_fail_msg("Abnormal failure when preparing for the test\n");
+		return;
+	}
+
+	if (!test->feature_check(test)) {
+		ksft_test_result_skip("Hardware does not support %s or %s is disabled\n",
+				      test->name, test->name);
+		goto cleanup;
+	}
+
+	ret = test->run_test(test, uparams);
+	ksft_test_result(!ret, "%s: test\n", test->name);
+
+cleanup:
+	test_cleanup(test);
+}
+
+/*
+ * Allocate and initialize a struct fill_buf_param with user provided
+ * (via "-b fill_buf <fill_buf parameters>") parameters.
+ *
+ * Use defaults (that may not be appropriate for all tests) for any
+ * fill_buf parameters omitted by the user.
+ *
+ * Historically it may have been possible for user space to provide
+ * additional parameters, "operation" ("read" vs "write") in
+ * benchmark_cmd[3] and "once" (run "once" or until terminated) in
+ * benchmark_cmd[4]. Changing these parameters have never been
+ * supported with the default of "read" operation and running until
+ * terminated built into the tests. Any unsupported values for
+ * (original) "fill_buf" parameters are treated as failure.
+ *
+ * Return: On failure, forcibly exits the test on any parsing failure,
+ *         returns NULL if no parsing needed (user did not actually provide
+ *         "-b fill_buf").
+ *         On success, returns pointer to newly allocated and fully
+ *         initialized struct fill_buf_param that caller must free.
+ */
+static struct fill_buf_param *alloc_fill_buf_param(struct user_params *uparams)
+{
+	struct fill_buf_param *fill_param = NULL;
+	char *endptr = NULL;
+
+	if (!uparams->benchmark_cmd[0] || strcmp(uparams->benchmark_cmd[0], "fill_buf"))
+		return NULL;
+
+	fill_param = malloc(sizeof(*fill_param));
+	if (!fill_param)
+		ksft_exit_skip("Unable to allocate memory for fill_buf parameters.\n");
+
+	if (uparams->benchmark_cmd[1] && *uparams->benchmark_cmd[1] != '\0') {
+		errno = 0;
+		fill_param->buf_size = strtoul(uparams->benchmark_cmd[1], &endptr, 10);
+		if (errno || *endptr != '\0') {
+			free(fill_param);
+			ksft_exit_skip("Unable to parse benchmark buffer size.\n");
+		}
+	} else {
+		fill_param->buf_size = MINIMUM_SPAN;
+	}
+
+	if (uparams->benchmark_cmd[2] && *uparams->benchmark_cmd[2] != '\0') {
+		errno = 0;
+		fill_param->memflush = strtol(uparams->benchmark_cmd[2], &endptr, 10) != 0;
+		if (errno || *endptr != '\0') {
+			free(fill_param);
+			ksft_exit_skip("Unable to parse benchmark memflush parameter.\n");
+		}
+	} else {
+		fill_param->memflush = true;
+	}
+
+	if (uparams->benchmark_cmd[3] && *uparams->benchmark_cmd[3] != '\0') {
+		if (strcmp(uparams->benchmark_cmd[3], "0")) {
+			free(fill_param);
+			ksft_exit_skip("Only read operations supported.\n");
+		}
+	}
+
+	if (uparams->benchmark_cmd[4] && *uparams->benchmark_cmd[4] != '\0') {
+		if (strcmp(uparams->benchmark_cmd[4], "false")) {
+			free(fill_param);
+			ksft_exit_skip("fill_buf is required to run until termination.\n");
+		}
+	}
+
+	return fill_param;
+}
+
+static void init_user_params(struct user_params *uparams)
+{
+	memset(uparams, 0, sizeof(*uparams));
+
+	uparams->cpu = 1;
+	uparams->bits = 0;
+}
+
+int main(int argc, char **argv)
+{
+	struct fill_buf_param *fill_param = NULL;
+	int tests = ARRAY_SIZE(resctrl_tests);
+	bool test_param_seen = false;
+	struct user_params uparams;
+	int c, i;
+
+	init_user_params(&uparams);
+
+	while ((c = getopt(argc, argv, "ht:b:n:p:")) != -1) {
+		char *token;
+
+		switch (c) {
+		case 'b':
+			/*
+			 * First move optind back to the (first) optarg and
+			 * then build the benchmark command using the
+			 * remaining arguments.
+			 */
+			optind--;
+			if (argc - optind >= BENCHMARK_ARGS)
+				ksft_exit_fail_msg("Too long benchmark command");
+
+			/* Extract benchmark command from command line. */
+			for (i = 0; i < argc - optind; i++)
+				uparams.benchmark_cmd[i] = argv[i + optind];
+			uparams.benchmark_cmd[i] = NULL;
+
+			goto last_arg;
+		case 't':
+			token = strtok(optarg, ",");
+
+			if (!test_param_seen) {
+				for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++)
+					resctrl_tests[i]->disabled = true;
+				tests = 0;
+				test_param_seen = true;
+			}
+			while (token) {
+				bool found = false;
+
+				for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++) {
+					if (!strcasecmp(token, resctrl_tests[i]->name) ||
+					    (resctrl_tests[i]->group &&
+					     !strcasecmp(token, resctrl_tests[i]->group))) {
+						if (resctrl_tests[i]->disabled)
+							tests++;
+						resctrl_tests[i]->disabled = false;
+						found = true;
+					}
+				}
+
+				if (!found) {
+					printf("invalid test: %s\n", token);
+
+					return -1;
+				}
+				token = strtok(NULL, ",");
+			}
+			break;
+		case 'p':
+			uparams.cpu = atoi(optarg);
+			break;
+		case 'n':
+			uparams.bits = atoi(optarg);
+			if (uparams.bits <= 0) {
+				printf("Bail out! invalid argument for no_of_bits\n");
+				return -1;
+			}
+			break;
+		case 'h':
+			cmd_help();
+
+			return 0;
+		default:
+			printf("invalid argument\n");
+
+			return -1;
+		}
+	}
+last_arg:
+
+	fill_param = alloc_fill_buf_param(&uparams);
+	if (fill_param)
+		uparams.fill_buf = fill_param;
+
+	ksft_print_header();
+
+	/*
+	 * Typically we need root privileges, because:
+	 * 1. We write to resctrl FS
+	 * 2. We execute perf commands
+	 */
+	if (geteuid() != 0)
+		ksft_exit_skip("Not running as root. Skipping...\n");
+
+	if (!check_resctrlfs_support())
+		ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config option.\n");
+
+	if (umount_resctrlfs())
+		ksft_exit_skip("resctrl FS unmount failed.\n");
+
+	filter_dmesg();
+
+	ksft_set_plan(tests);
+
+	for (i = 0; i < ARRAY_SIZE(resctrl_tests); i++)
+		run_single_test(resctrl_tests[i], &uparams);
+
+	free(fill_param);
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/resctrl/resctrl_val.c b/tools/testing/selftests/resctrl/resctrl_val.c
new file mode 100644
index 000000000000..7c08e936572d
--- /dev/null
+++ b/tools/testing/selftests/resctrl/resctrl_val.c
@@ -0,0 +1,641 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Memory bandwidth monitoring and allocation library
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include "resctrl.h"
+
+#define UNCORE_IMC		"uncore_imc"
+#define READ_FILE_NAME		"events/cas_count_read"
+#define DYN_PMU_PATH		"/sys/bus/event_source/devices"
+#define SCALE			0.00006103515625
+#define MAX_IMCS		20
+#define MAX_TOKENS		5
+
+#define CON_MBM_LOCAL_BYTES_PATH		\
+	"%s/%s/mon_data/mon_L3_%02d/mbm_local_bytes"
+
+struct membw_read_format {
+	__u64 value;         /* The value of the event */
+	__u64 time_enabled;  /* if PERF_FORMAT_TOTAL_TIME_ENABLED */
+	__u64 time_running;  /* if PERF_FORMAT_TOTAL_TIME_RUNNING */
+	__u64 id;            /* if PERF_FORMAT_ID */
+};
+
+struct imc_counter_config {
+	__u32 type;
+	__u64 event;
+	__u64 umask;
+	struct perf_event_attr pe;
+	struct membw_read_format return_value;
+	int fd;
+};
+
+static char mbm_total_path[1024];
+static int imcs;
+static struct imc_counter_config imc_counters_config[MAX_IMCS];
+static const struct resctrl_test *current_test;
+
+static void read_mem_bw_initialize_perf_event_attr(int i)
+{
+	memset(&imc_counters_config[i].pe, 0,
+	       sizeof(struct perf_event_attr));
+	imc_counters_config[i].pe.type = imc_counters_config[i].type;
+	imc_counters_config[i].pe.size = sizeof(struct perf_event_attr);
+	imc_counters_config[i].pe.disabled = 1;
+	imc_counters_config[i].pe.inherit = 1;
+	imc_counters_config[i].pe.exclude_guest = 0;
+	imc_counters_config[i].pe.config =
+		imc_counters_config[i].umask << 8 |
+		imc_counters_config[i].event;
+	imc_counters_config[i].pe.sample_type = PERF_SAMPLE_IDENTIFIER;
+	imc_counters_config[i].pe.read_format =
+		PERF_FORMAT_TOTAL_TIME_ENABLED | PERF_FORMAT_TOTAL_TIME_RUNNING;
+}
+
+static void read_mem_bw_ioctl_perf_event_ioc_reset_enable(int i)
+{
+	ioctl(imc_counters_config[i].fd, PERF_EVENT_IOC_RESET, 0);
+	ioctl(imc_counters_config[i].fd, PERF_EVENT_IOC_ENABLE, 0);
+}
+
+static void read_mem_bw_ioctl_perf_event_ioc_disable(int i)
+{
+	ioctl(imc_counters_config[i].fd, PERF_EVENT_IOC_DISABLE, 0);
+}
+
+/*
+ * get_read_event_and_umask:	Parse config into event and umask
+ * @cas_count_cfg:	Config
+ * @count:		iMC number
+ */
+static void get_read_event_and_umask(char *cas_count_cfg, int count)
+{
+	char *token[MAX_TOKENS];
+	int i = 0;
+
+	token[0] = strtok(cas_count_cfg, "=,");
+
+	for (i = 1; i < MAX_TOKENS; i++)
+		token[i] = strtok(NULL, "=,");
+
+	for (i = 0; i < MAX_TOKENS - 1; i++) {
+		if (!token[i])
+			break;
+		if (strcmp(token[i], "event") == 0)
+			imc_counters_config[count].event = strtol(token[i + 1], NULL, 16);
+		if (strcmp(token[i], "umask") == 0)
+			imc_counters_config[count].umask = strtol(token[i + 1], NULL, 16);
+	}
+}
+
+static int open_perf_read_event(int i, int cpu_no)
+{
+	imc_counters_config[i].fd =
+		perf_event_open(&imc_counters_config[i].pe, -1, cpu_no, -1,
+				PERF_FLAG_FD_CLOEXEC);
+
+	if (imc_counters_config[i].fd == -1) {
+		fprintf(stderr, "Error opening leader %llx\n",
+			imc_counters_config[i].pe.config);
+
+		return -1;
+	}
+
+	return 0;
+}
+
+/* Get type and config of an iMC counter's read event. */
+static int read_from_imc_dir(char *imc_dir, int count)
+{
+	char cas_count_cfg[1024], imc_counter_cfg[1024], imc_counter_type[1024];
+	FILE *fp;
+
+	/* Get type of iMC counter */
+	sprintf(imc_counter_type, "%s%s", imc_dir, "type");
+	fp = fopen(imc_counter_type, "r");
+	if (!fp) {
+		ksft_perror("Failed to open iMC counter type file");
+
+		return -1;
+	}
+	if (fscanf(fp, "%u", &imc_counters_config[count].type) <= 0) {
+		ksft_perror("Could not get iMC type");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	/* Get read config */
+	sprintf(imc_counter_cfg, "%s%s", imc_dir, READ_FILE_NAME);
+	fp = fopen(imc_counter_cfg, "r");
+	if (!fp) {
+		ksft_perror("Failed to open iMC config file");
+
+		return -1;
+	}
+	if (fscanf(fp, "%1023s", cas_count_cfg) <= 0) {
+		ksft_perror("Could not get iMC cas count read");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	get_read_event_and_umask(cas_count_cfg, count);
+
+	return 0;
+}
+
+/*
+ * A system can have 'n' number of iMC (Integrated Memory Controller)
+ * counters, get that 'n'. Discover the properties of the available
+ * counters in support of needed performance measurement via perf.
+ * For each iMC counter get it's type and config. Also obtain each
+ * counter's event and umask for the memory read events that will be
+ * measured.
+ *
+ * Enumerate all these details into an array of structures.
+ *
+ * Return: >= 0 on success. < 0 on failure.
+ */
+static int num_of_imcs(void)
+{
+	char imc_dir[512], *temp;
+	unsigned int count = 0;
+	struct dirent *ep;
+	int ret;
+	DIR *dp;
+
+	dp = opendir(DYN_PMU_PATH);
+	if (dp) {
+		while ((ep = readdir(dp))) {
+			temp = strstr(ep->d_name, UNCORE_IMC);
+			if (!temp)
+				continue;
+
+			/*
+			 * imc counters are named as "uncore_imc_<n>", hence
+			 * increment the pointer to point to <n>. Note that
+			 * sizeof(UNCORE_IMC) would count for null character as
+			 * well and hence the last underscore character in
+			 * uncore_imc'_' need not be counted.
+			 */
+			temp = temp + sizeof(UNCORE_IMC);
+
+			/*
+			 * Some directories under "DYN_PMU_PATH" could have
+			 * names like "uncore_imc_free_running", hence, check if
+			 * first character is a numerical digit or not.
+			 */
+			if (temp[0] >= '0' && temp[0] <= '9') {
+				sprintf(imc_dir, "%s/%s/", DYN_PMU_PATH,
+					ep->d_name);
+				ret = read_from_imc_dir(imc_dir, count);
+				if (ret) {
+					closedir(dp);
+
+					return ret;
+				}
+				count++;
+			}
+		}
+		closedir(dp);
+		if (count == 0) {
+			ksft_print_msg("Unable to find iMC counters\n");
+
+			return -1;
+		}
+	} else {
+		ksft_perror("Unable to open PMU directory");
+
+		return -1;
+	}
+
+	return count;
+}
+
+int initialize_read_mem_bw_imc(void)
+{
+	int imc;
+
+	imcs = num_of_imcs();
+	if (imcs <= 0)
+		return imcs;
+
+	/* Initialize perf_event_attr structures for all iMC's */
+	for (imc = 0; imc < imcs; imc++)
+		read_mem_bw_initialize_perf_event_attr(imc);
+
+	return 0;
+}
+
+static void perf_close_imc_read_mem_bw(void)
+{
+	int mc;
+
+	for (mc = 0; mc < imcs; mc++) {
+		if (imc_counters_config[mc].fd != -1)
+			close(imc_counters_config[mc].fd);
+	}
+}
+
+/*
+ * perf_open_imc_read_mem_bw - Open perf fds for IMCs
+ * @cpu_no: CPU number that the benchmark PID is bound to
+ *
+ * Return: = 0 on success. < 0 on failure.
+ */
+static int perf_open_imc_read_mem_bw(int cpu_no)
+{
+	int imc, ret;
+
+	for (imc = 0; imc < imcs; imc++)
+		imc_counters_config[imc].fd = -1;
+
+	for (imc = 0; imc < imcs; imc++) {
+		ret = open_perf_read_event(imc, cpu_no);
+		if (ret)
+			goto close_fds;
+	}
+
+	return 0;
+
+close_fds:
+	perf_close_imc_read_mem_bw();
+	return -1;
+}
+
+/*
+ * do_imc_read_mem_bw_test - Perform memory bandwidth test
+ *
+ * Runs memory bandwidth test over one second period. Also, handles starting
+ * and stopping of the IMC perf counters around the test.
+ */
+static void do_imc_read_mem_bw_test(void)
+{
+	int imc;
+
+	for (imc = 0; imc < imcs; imc++)
+		read_mem_bw_ioctl_perf_event_ioc_reset_enable(imc);
+
+	sleep(1);
+
+	/* Stop counters after a second to get results. */
+	for (imc = 0; imc < imcs; imc++)
+		read_mem_bw_ioctl_perf_event_ioc_disable(imc);
+}
+
+/*
+ * get_read_mem_bw_imc - Memory read bandwidth as reported by iMC counters
+ *
+ * Memory read bandwidth utilized by a process on a socket can be calculated
+ * using iMC counters' read events. Perf events are used to read these
+ * counters.
+ *
+ * Return: = 0 on success. < 0 on failure.
+ */
+static int get_read_mem_bw_imc(float *bw_imc)
+{
+	float reads = 0, of_mul_read = 1;
+	int imc;
+
+	/*
+	 * Log read event values from all iMC counters into
+	 * struct imc_counter_config.
+	 * Take overflow into consideration before calculating total bandwidth.
+	 */
+	for (imc = 0; imc < imcs; imc++) {
+		struct imc_counter_config *r =
+			&imc_counters_config[imc];
+
+		if (read(r->fd, &r->return_value,
+			 sizeof(struct membw_read_format)) == -1) {
+			ksft_perror("Couldn't get read bandwidth through iMC");
+			return -1;
+		}
+
+		__u64 r_time_enabled = r->return_value.time_enabled;
+		__u64 r_time_running = r->return_value.time_running;
+
+		if (r_time_enabled != r_time_running)
+			of_mul_read = (float)r_time_enabled /
+					(float)r_time_running;
+
+		reads += r->return_value.value * of_mul_read * SCALE;
+	}
+
+	*bw_imc = reads;
+	return 0;
+}
+
+/*
+ * initialize_mem_bw_resctrl:	Appropriately populate "mbm_total_path"
+ * @param:	Parameters passed to resctrl_val()
+ * @domain_id:	Domain ID (cache ID; for MB, L3 cache ID)
+ */
+void initialize_mem_bw_resctrl(const struct resctrl_val_param *param,
+			       int domain_id)
+{
+	sprintf(mbm_total_path, CON_MBM_LOCAL_BYTES_PATH, RESCTRL_PATH,
+		param->ctrlgrp, domain_id);
+}
+
+/*
+ * Open file to read MBM local bytes from resctrl FS
+ */
+static FILE *open_mem_bw_resctrl(const char *mbm_bw_file)
+{
+	FILE *fp;
+
+	fp = fopen(mbm_bw_file, "r");
+	if (!fp)
+		ksft_perror("Failed to open total memory bandwidth file");
+
+	return fp;
+}
+
+/*
+ * Get MBM Local bytes as reported by resctrl FS
+ */
+static int get_mem_bw_resctrl(FILE *fp, unsigned long *mbm_total)
+{
+	if (fscanf(fp, "%lu\n", mbm_total) <= 0) {
+		ksft_perror("Could not get MBM local bytes");
+		return -1;
+	}
+	return 0;
+}
+
+static pid_t bm_pid;
+
+void ctrlc_handler(int signum, siginfo_t *info, void *ptr)
+{
+	/* Only kill child after bm_pid is set after fork() */
+	if (bm_pid)
+		kill(bm_pid, SIGKILL);
+	umount_resctrlfs();
+	if (current_test && current_test->cleanup)
+		current_test->cleanup();
+	ksft_print_msg("Ending\n\n");
+
+	exit(EXIT_SUCCESS);
+}
+
+/*
+ * Register CTRL-C handler for parent, as it has to kill
+ * child process before exiting.
+ */
+int signal_handler_register(const struct resctrl_test *test)
+{
+	struct sigaction sigact = {};
+	int ret = 0;
+
+	bm_pid = 0;
+
+	current_test = test;
+	sigact.sa_sigaction = ctrlc_handler;
+	sigemptyset(&sigact.sa_mask);
+	sigact.sa_flags = SA_SIGINFO;
+	if (sigaction(SIGINT, &sigact, NULL) ||
+	    sigaction(SIGTERM, &sigact, NULL) ||
+	    sigaction(SIGHUP, &sigact, NULL)) {
+		ksft_perror("sigaction");
+		ret = -1;
+	}
+	return ret;
+}
+
+/*
+ * Reset signal handler to SIG_DFL.
+ * Non-Value return because the caller should keep
+ * the error code of other path even if sigaction fails.
+ */
+void signal_handler_unregister(void)
+{
+	struct sigaction sigact = {};
+
+	current_test = NULL;
+	sigact.sa_handler = SIG_DFL;
+	sigemptyset(&sigact.sa_mask);
+	if (sigaction(SIGINT, &sigact, NULL) ||
+	    sigaction(SIGTERM, &sigact, NULL) ||
+	    sigaction(SIGHUP, &sigact, NULL)) {
+		ksft_perror("sigaction");
+	}
+}
+
+/*
+ * print_results_bw:	the memory bandwidth results are stored in a file
+ * @filename:		file that stores the results
+ * @bm_pid:		child pid that runs benchmark
+ * @bw_imc:		perf imc counter value
+ * @bw_resc:		memory bandwidth value
+ *
+ * Return:		0 on success, < 0 on error.
+ */
+static int print_results_bw(char *filename, pid_t bm_pid, float bw_imc,
+			    unsigned long bw_resc)
+{
+	unsigned long diff = fabs(bw_imc - bw_resc);
+	FILE *fp;
+
+	if (strcmp(filename, "stdio") == 0 || strcmp(filename, "stderr") == 0) {
+		printf("Pid: %d \t Mem_BW_iMC: %f \t ", (int)bm_pid, bw_imc);
+		printf("Mem_BW_resc: %lu \t Difference: %lu\n", bw_resc, diff);
+	} else {
+		fp = fopen(filename, "a");
+		if (!fp) {
+			ksft_perror("Cannot open results file");
+
+			return -1;
+		}
+		if (fprintf(fp, "Pid: %d \t Mem_BW_iMC: %f \t Mem_BW_resc: %lu \t Difference: %lu\n",
+			    (int)bm_pid, bw_imc, bw_resc, diff) <= 0) {
+			ksft_print_msg("Could not log results\n");
+			fclose(fp);
+
+			return -1;
+		}
+		fclose(fp);
+	}
+
+	return 0;
+}
+
+/*
+ * measure_read_mem_bw - Measures read memory bandwidth numbers while benchmark runs
+ * @uparams:		User supplied parameters
+ * @param:		Parameters passed to resctrl_val()
+ * @bm_pid:		PID that runs the benchmark
+ *
+ * Measure memory bandwidth from resctrl and from another source which is
+ * perf imc value or could be something else if perf imc event is not
+ * available. Compare the two values to validate resctrl value. It takes
+ * 1 sec to measure the data.
+ * resctrl does not distinguish between read and write operations so
+ * its data includes all memory operations.
+ */
+int measure_read_mem_bw(const struct user_params *uparams,
+			struct resctrl_val_param *param, pid_t bm_pid)
+{
+	unsigned long bw_resc, bw_resc_start, bw_resc_end;
+	FILE *mem_bw_fp;
+	float bw_imc;
+	int ret;
+
+	mem_bw_fp = open_mem_bw_resctrl(mbm_total_path);
+	if (!mem_bw_fp)
+		return -1;
+
+	ret = perf_open_imc_read_mem_bw(uparams->cpu);
+	if (ret < 0)
+		goto close_fp;
+
+	ret = get_mem_bw_resctrl(mem_bw_fp, &bw_resc_start);
+	if (ret < 0)
+		goto close_imc;
+
+	rewind(mem_bw_fp);
+
+	do_imc_read_mem_bw_test();
+
+	ret = get_mem_bw_resctrl(mem_bw_fp, &bw_resc_end);
+	if (ret < 0)
+		goto close_imc;
+
+	ret = get_read_mem_bw_imc(&bw_imc);
+	if (ret < 0)
+		goto close_imc;
+
+	perf_close_imc_read_mem_bw();
+	fclose(mem_bw_fp);
+
+	bw_resc = (bw_resc_end - bw_resc_start) / MB;
+
+	return print_results_bw(param->filename, bm_pid, bw_imc, bw_resc);
+
+close_imc:
+	perf_close_imc_read_mem_bw();
+close_fp:
+	fclose(mem_bw_fp);
+	return ret;
+}
+
+/*
+ * resctrl_val:	execute benchmark and measure memory bandwidth on
+ *			the benchmark
+ * @test:		test information structure
+ * @uparams:		user supplied parameters
+ * @param:		parameters passed to resctrl_val()
+ *
+ * Return:		0 when the test was run, < 0 on error.
+ */
+int resctrl_val(const struct resctrl_test *test,
+		const struct user_params *uparams,
+		struct resctrl_val_param *param)
+{
+	unsigned char *buf = NULL;
+	cpu_set_t old_affinity;
+	int domain_id;
+	int ret = 0;
+	pid_t ppid;
+
+	if (strcmp(param->filename, "") == 0)
+		sprintf(param->filename, "stdio");
+
+	ret = get_domain_id(test->resource, uparams->cpu, &domain_id);
+	if (ret < 0) {
+		ksft_print_msg("Could not get domain ID\n");
+		return ret;
+	}
+
+	ppid = getpid();
+
+	/* Taskset test to specified CPU. */
+	ret = taskset_benchmark(ppid, uparams->cpu, &old_affinity);
+	if (ret)
+		return ret;
+
+	/* Write test to specified control & monitoring group in resctrl FS. */
+	ret = write_bm_pid_to_resctrl(ppid, param->ctrlgrp, param->mongrp);
+	if (ret)
+		goto reset_affinity;
+
+	if (param->init) {
+		ret = param->init(param, domain_id);
+		if (ret)
+			goto reset_affinity;
+	}
+
+	/*
+	 * If not running user provided benchmark, run the default
+	 * "fill_buf". First phase of "fill_buf" is to prepare the
+	 * buffer that the benchmark will operate on. No measurements
+	 * are needed during this phase and prepared memory will be
+	 * passed to next part of benchmark via copy-on-write thus
+	 * no impact on the benchmark that relies on reading from
+	 * memory only.
+	 */
+	if (param->fill_buf) {
+		buf = alloc_buffer(param->fill_buf->buf_size,
+				   param->fill_buf->memflush);
+		if (!buf) {
+			ret = -ENOMEM;
+			goto reset_affinity;
+		}
+	}
+
+	fflush(stdout);
+	bm_pid = fork();
+	if (bm_pid == -1) {
+		ret = -errno;
+		ksft_perror("Unable to fork");
+		goto free_buf;
+	}
+
+	/*
+	 * What needs to be measured runs in separate process until
+	 * terminated.
+	 */
+	if (bm_pid == 0) {
+		if (param->fill_buf)
+			fill_cache_read(buf, param->fill_buf->buf_size, false);
+		else if (uparams->benchmark_cmd[0])
+			execvp(uparams->benchmark_cmd[0], (char **)uparams->benchmark_cmd);
+		exit(EXIT_SUCCESS);
+	}
+
+	ksft_print_msg("Benchmark PID: %d\n", (int)bm_pid);
+
+	/* Give benchmark enough time to fully run. */
+	sleep(1);
+
+	/* Test runs until the callback setup() tells the test to stop. */
+	while (1) {
+		ret = param->setup(test, uparams, param);
+		if (ret == END_OF_TESTS) {
+			ret = 0;
+			break;
+		}
+		if (ret < 0)
+			break;
+
+		ret = param->measure(uparams, param, bm_pid);
+		if (ret)
+			break;
+	}
+
+	kill(bm_pid, SIGKILL);
+free_buf:
+	free(buf);
+reset_affinity:
+	taskset_restore(ppid, &old_affinity);
+	return ret;
+}
diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
new file mode 100644
index 000000000000..195f04c4d158
--- /dev/null
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -0,0 +1,991 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Basic resctrl file system operations
+ *
+ * Copyright (C) 2018 Intel Corporation
+ *
+ * Authors:
+ *    Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
+ *    Fenghua Yu <fenghua.yu@intel.com>
+ */
+#include <fcntl.h>
+#include <limits.h>
+
+#include "resctrl.h"
+
+int snc_unreliable;
+
+static int find_resctrl_mount(char *buffer)
+{
+	FILE *mounts;
+	char line[256], *fs, *mntpoint;
+
+	mounts = fopen("/proc/mounts", "r");
+	if (!mounts) {
+		ksft_perror("/proc/mounts");
+		return -ENXIO;
+	}
+	while (!feof(mounts)) {
+		if (!fgets(line, 256, mounts))
+			break;
+		fs = strtok(line, " \t");
+		if (!fs)
+			continue;
+		mntpoint = strtok(NULL, " \t");
+		if (!mntpoint)
+			continue;
+		fs = strtok(NULL, " \t");
+		if (!fs)
+			continue;
+		if (strcmp(fs, "resctrl"))
+			continue;
+
+		fclose(mounts);
+		if (buffer)
+			strncpy(buffer, mntpoint, 256);
+
+		return 0;
+	}
+
+	fclose(mounts);
+
+	return -ENOENT;
+}
+
+/*
+ * mount_resctrlfs - Mount resctrl FS at /sys/fs/resctrl
+ *
+ * Mounts resctrl FS. Fails if resctrl FS is already mounted to avoid
+ * pre-existing settings interfering with the test results.
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+int mount_resctrlfs(void)
+{
+	int ret;
+
+	ret = find_resctrl_mount(NULL);
+	if (ret != -ENOENT)
+		return -1;
+
+	ksft_print_msg("Mounting resctrl to \"%s\"\n", RESCTRL_PATH);
+	ret = mount("resctrl", RESCTRL_PATH, "resctrl", 0, NULL);
+	if (ret)
+		ksft_perror("mount");
+
+	return ret;
+}
+
+int umount_resctrlfs(void)
+{
+	char mountpoint[256];
+	int ret;
+
+	ret = find_resctrl_mount(mountpoint);
+	if (ret == -ENOENT)
+		return 0;
+	if (ret)
+		return ret;
+
+	if (umount(mountpoint)) {
+		ksft_perror("Unable to umount resctrl");
+
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * get_cache_level - Convert cache level from string to integer
+ * @cache_type:		Cache level as string
+ *
+ * Return: cache level as integer or -1 if @cache_type is invalid.
+ */
+static int get_cache_level(const char *cache_type)
+{
+	if (!strcmp(cache_type, "L3"))
+		return 3;
+	if (!strcmp(cache_type, "L2"))
+		return 2;
+
+	ksft_print_msg("Invalid cache level\n");
+	return -1;
+}
+
+static int get_resource_cache_level(const char *resource)
+{
+	/* "MB" use L3 (LLC) as resource */
+	if (!strcmp(resource, "MB"))
+		return 3;
+	return get_cache_level(resource);
+}
+
+/*
+ * get_domain_id - Get resctrl domain ID for a specified CPU
+ * @resource:	resource name
+ * @cpu_no:	CPU number
+ * @domain_id:	domain ID (cache ID; for MB, L3 cache ID)
+ *
+ * Return: >= 0 on success, < 0 on failure.
+ */
+int get_domain_id(const char *resource, int cpu_no, int *domain_id)
+{
+	char phys_pkg_path[1024];
+	int cache_num;
+	FILE *fp;
+
+	cache_num = get_resource_cache_level(resource);
+	if (cache_num < 0)
+		return cache_num;
+
+	sprintf(phys_pkg_path, "%s%d/cache/index%d/id", PHYS_ID_PATH, cpu_no, cache_num);
+
+	fp = fopen(phys_pkg_path, "r");
+	if (!fp) {
+		ksft_perror("Failed to open cache id file");
+
+		return -1;
+	}
+	if (fscanf(fp, "%d", domain_id) <= 0) {
+		ksft_perror("Could not get domain ID");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	return 0;
+}
+
+/*
+ * Count number of CPUs in a /sys bitmap
+ */
+static unsigned int count_sys_bitmap_bits(char *name)
+{
+	FILE *fp = fopen(name, "r");
+	int count = 0, c;
+
+	if (!fp)
+		return 0;
+
+	while ((c = fgetc(fp)) != EOF) {
+		if (!isxdigit(c))
+			continue;
+		switch (c) {
+		case 'f':
+			count++;
+			fallthrough;
+		case '7': case 'b': case 'd': case 'e':
+			count++;
+			fallthrough;
+		case '3': case '5': case '6': case '9': case 'a': case 'c':
+			count++;
+			fallthrough;
+		case '1': case '2': case '4': case '8':
+			count++;
+			break;
+		}
+	}
+	fclose(fp);
+
+	return count;
+}
+
+static bool cpus_offline_empty(void)
+{
+	char offline_cpus_str[64];
+	FILE *fp;
+
+	fp = fopen("/sys/devices/system/cpu/offline", "r");
+	if (!fp) {
+		ksft_perror("Could not open /sys/devices/system/cpu/offline");
+		return 0;
+	}
+
+	if (fscanf(fp, "%63s", offline_cpus_str) < 0) {
+		if (!errno) {
+			fclose(fp);
+			return 1;
+		}
+		ksft_perror("Could not read /sys/devices/system/cpu/offline");
+	}
+
+	fclose(fp);
+
+	return 0;
+}
+
+/*
+ * Detect SNC by comparing #CPUs in node0 with #CPUs sharing LLC with CPU0.
+ * If any CPUs are offline declare the detection as unreliable.
+ */
+int snc_nodes_per_l3_cache(void)
+{
+	int node_cpus, cache_cpus;
+	static int snc_mode;
+
+	if (!snc_mode) {
+		snc_mode = 1;
+		if (!cpus_offline_empty()) {
+			ksft_print_msg("Runtime SNC detection unreliable due to offline CPUs.\n");
+			ksft_print_msg("Setting SNC mode to disabled.\n");
+			snc_unreliable = 1;
+			return snc_mode;
+		}
+		node_cpus = count_sys_bitmap_bits("/sys/devices/system/node/node0/cpumap");
+		cache_cpus = count_sys_bitmap_bits("/sys/devices/system/cpu/cpu0/cache/index3/shared_cpu_map");
+
+		if (!node_cpus || !cache_cpus) {
+			ksft_print_msg("Could not determine Sub-NUMA Cluster mode.\n");
+			snc_unreliable = 1;
+			return snc_mode;
+		}
+		snc_mode = cache_cpus / node_cpus;
+
+		if (snc_mode > 1)
+			ksft_print_msg("SNC-%d mode discovered.\n", snc_mode);
+	}
+
+	return snc_mode;
+}
+
+/*
+ * get_cache_size - Get cache size for a specified CPU
+ * @cpu_no:	CPU number
+ * @cache_type:	Cache level L2/L3
+ * @cache_size:	pointer to cache_size
+ *
+ * Return: = 0 on success, < 0 on failure.
+ */
+int get_cache_size(int cpu_no, const char *cache_type, unsigned long *cache_size)
+{
+	char cache_path[1024], cache_str[64];
+	int length, i, cache_num;
+	FILE *fp;
+
+	cache_num = get_cache_level(cache_type);
+	if (cache_num < 0)
+		return cache_num;
+
+	sprintf(cache_path, "/sys/bus/cpu/devices/cpu%d/cache/index%d/size",
+		cpu_no, cache_num);
+	fp = fopen(cache_path, "r");
+	if (!fp) {
+		ksft_perror("Failed to open cache size");
+
+		return -1;
+	}
+	if (fscanf(fp, "%63s", cache_str) <= 0) {
+		ksft_perror("Could not get cache_size");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	length = (int)strlen(cache_str);
+
+	*cache_size = 0;
+
+	for (i = 0; i < length; i++) {
+		if ((cache_str[i] >= '0') && (cache_str[i] <= '9'))
+
+			*cache_size = *cache_size * 10 + (cache_str[i] - '0');
+
+		else if (cache_str[i] == 'K')
+
+			*cache_size = *cache_size * 1024;
+
+		else if (cache_str[i] == 'M')
+
+			*cache_size = *cache_size * 1024 * 1024;
+
+		else
+			break;
+	}
+
+	/*
+	 * The amount of cache represented by each bit in the masks
+	 * in the schemata file is reduced by a factor equal to SNC
+	 * nodes per L3 cache.
+	 * E.g. on a SNC-2 system with a 100MB L3 cache a test that
+	 * allocates memory from its local SNC node (default behavior
+	 * without using libnuma) will only see 50 MB llc_occupancy
+	 * with a fully populated L3 mask in the schemata file.
+	 */
+	if (cache_num == 3)
+		*cache_size /= snc_nodes_per_l3_cache();
+	return 0;
+}
+
+#define CORE_SIBLINGS_PATH	"/sys/bus/cpu/devices/cpu"
+
+/*
+ * get_bit_mask - Get bit mask from given file
+ * @filename:	File containing the mask
+ * @mask:	The bit mask returned as unsigned long
+ *
+ * Return: = 0 on success, < 0 on failure.
+ */
+static int get_bit_mask(const char *filename, unsigned long *mask)
+{
+	FILE *fp;
+
+	if (!filename || !mask)
+		return -1;
+
+	fp = fopen(filename, "r");
+	if (!fp) {
+		ksft_print_msg("Failed to open bit mask file '%s': %s\n",
+			       filename, strerror(errno));
+		return -1;
+	}
+
+	if (fscanf(fp, "%lx", mask) <= 0) {
+		ksft_print_msg("Could not read bit mask file '%s': %s\n",
+			       filename, strerror(errno));
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	return 0;
+}
+
+/*
+ * resource_info_unsigned_get - Read an unsigned value from
+ * /sys/fs/resctrl/info/@resource/@filename
+ * @resource:	Resource name that matches directory name in
+ *		/sys/fs/resctrl/info
+ * @filename:	File in /sys/fs/resctrl/info/@resource
+ * @val:	Contains read value on success.
+ *
+ * Return: = 0 on success, < 0 on failure. On success the read
+ * value is saved into @val.
+ */
+int resource_info_unsigned_get(const char *resource, const char *filename,
+			       unsigned int *val)
+{
+	char file_path[PATH_MAX];
+	FILE *fp;
+
+	snprintf(file_path, sizeof(file_path), "%s/%s/%s", INFO_PATH, resource,
+		 filename);
+
+	fp = fopen(file_path, "r");
+	if (!fp) {
+		ksft_print_msg("Error opening %s: %m\n", file_path);
+		return -1;
+	}
+
+	if (fscanf(fp, "%u", val) <= 0) {
+		ksft_print_msg("Could not get contents of %s: %m\n", file_path);
+		fclose(fp);
+		return -1;
+	}
+
+	fclose(fp);
+	return 0;
+}
+
+/*
+ * create_bit_mask- Create bit mask from start, len pair
+ * @start:	LSB of the mask
+ * @len		Number of bits in the mask
+ */
+unsigned long create_bit_mask(unsigned int start, unsigned int len)
+{
+	return ((1UL << len) - 1UL) << start;
+}
+
+/*
+ * count_contiguous_bits - Returns the longest train of bits in a bit mask
+ * @val		A bit mask
+ * @start	The location of the least-significant bit of the longest train
+ *
+ * Return:	The length of the contiguous bits in the longest train of bits
+ */
+unsigned int count_contiguous_bits(unsigned long val, unsigned int *start)
+{
+	unsigned long last_val;
+	unsigned int count = 0;
+
+	while (val) {
+		last_val = val;
+		val &= (val >> 1);
+		count++;
+	}
+
+	if (start) {
+		if (count)
+			*start = ffsl(last_val) - 1;
+		else
+			*start = 0;
+	}
+
+	return count;
+}
+
+/*
+ * get_full_cbm - Get full Cache Bit Mask (CBM)
+ * @cache_type:	Cache type as "L2" or "L3"
+ * @mask:	Full cache bit mask representing the maximal portion of cache
+ *		available for allocation, returned as unsigned long.
+ *
+ * Return: = 0 on success, < 0 on failure.
+ */
+int get_full_cbm(const char *cache_type, unsigned long *mask)
+{
+	char cbm_path[PATH_MAX];
+	int ret;
+
+	if (!cache_type)
+		return -1;
+
+	snprintf(cbm_path, sizeof(cbm_path), "%s/%s/cbm_mask",
+		 INFO_PATH, cache_type);
+
+	ret = get_bit_mask(cbm_path, mask);
+	if (ret || !*mask)
+		return -1;
+
+	return 0;
+}
+
+/*
+ * get_shareable_mask - Get shareable mask from shareable_bits
+ * @cache_type:		Cache type as "L2" or "L3"
+ * @shareable_mask:	Shareable mask returned as unsigned long
+ *
+ * Return: = 0 on success, < 0 on failure.
+ */
+static int get_shareable_mask(const char *cache_type, unsigned long *shareable_mask)
+{
+	char mask_path[PATH_MAX];
+
+	if (!cache_type)
+		return -1;
+
+	snprintf(mask_path, sizeof(mask_path), "%s/%s/shareable_bits",
+		 INFO_PATH, cache_type);
+
+	return get_bit_mask(mask_path, shareable_mask);
+}
+
+/*
+ * get_mask_no_shareable - Get Cache Bit Mask (CBM) without shareable bits
+ * @cache_type:		Cache type as "L2" or "L3"
+ * @mask:		The largest exclusive portion of the cache out of the
+ *			full CBM, returned as unsigned long
+ *
+ * Parts of a cache may be shared with other devices such as GPU. This function
+ * calculates the largest exclusive portion of the cache where no other devices
+ * besides CPU have access to the cache portion.
+ *
+ * Return: = 0 on success, < 0 on failure.
+ */
+int get_mask_no_shareable(const char *cache_type, unsigned long *mask)
+{
+	unsigned long full_mask, shareable_mask;
+	unsigned int start, len;
+
+	if (get_full_cbm(cache_type, &full_mask) < 0)
+		return -1;
+	if (get_shareable_mask(cache_type, &shareable_mask) < 0)
+		return -1;
+
+	len = count_contiguous_bits(full_mask & ~shareable_mask, &start);
+	if (!len)
+		return -1;
+
+	*mask = create_bit_mask(start, len);
+
+	return 0;
+}
+
+/*
+ * taskset_benchmark - Taskset PID (i.e. benchmark) to a specified cpu
+ * @bm_pid:		PID that should be binded
+ * @cpu_no:		CPU number at which the PID would be binded
+ * @old_affinity:	When not NULL, set to old CPU affinity
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+int taskset_benchmark(pid_t bm_pid, int cpu_no, cpu_set_t *old_affinity)
+{
+	cpu_set_t my_set;
+
+	if (old_affinity) {
+		CPU_ZERO(old_affinity);
+		if (sched_getaffinity(bm_pid, sizeof(*old_affinity),
+				      old_affinity)) {
+			ksft_perror("Unable to read CPU affinity");
+			return -1;
+		}
+	}
+
+	CPU_ZERO(&my_set);
+	CPU_SET(cpu_no, &my_set);
+
+	if (sched_setaffinity(bm_pid, sizeof(cpu_set_t), &my_set)) {
+		ksft_perror("Unable to taskset benchmark");
+
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * taskset_restore - Taskset PID to the earlier CPU affinity
+ * @bm_pid:		PID that should be reset
+ * @old_affinity:	The old CPU affinity to restore
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+int taskset_restore(pid_t bm_pid, cpu_set_t *old_affinity)
+{
+	if (sched_setaffinity(bm_pid, sizeof(*old_affinity), old_affinity)) {
+		ksft_perror("Unable to restore CPU affinity");
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
+ * create_grp - Create a group only if one doesn't exist
+ * @grp_name:	Name of the group
+ * @grp:	Full path and name of the group
+ * @parent_grp:	Full path and name of the parent group
+ *
+ * Creates a group @grp_name if it does not exist yet. If @grp_name is NULL,
+ * it is interpreted as the root group which always results in success.
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+static int create_grp(const char *grp_name, char *grp, const char *parent_grp)
+{
+	int found_grp = 0;
+	struct dirent *ep;
+	DIR *dp;
+
+	if (!grp_name)
+		return 0;
+
+	/* Check if requested grp exists or not */
+	dp = opendir(parent_grp);
+	if (dp) {
+		while ((ep = readdir(dp)) != NULL) {
+			if (strcmp(ep->d_name, grp_name) == 0)
+				found_grp = 1;
+		}
+		closedir(dp);
+	} else {
+		ksft_perror("Unable to open resctrl for group");
+
+		return -1;
+	}
+
+	/* Requested grp doesn't exist, hence create it */
+	if (found_grp == 0) {
+		if (mkdir(grp, 0) == -1) {
+			ksft_perror("Unable to create group");
+
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int write_pid_to_tasks(char *tasks, pid_t pid)
+{
+	FILE *fp;
+
+	fp = fopen(tasks, "w");
+	if (!fp) {
+		ksft_perror("Failed to open tasks file");
+
+		return -1;
+	}
+	if (fprintf(fp, "%d\n", (int)pid) < 0) {
+		ksft_print_msg("Failed to write pid to tasks file\n");
+		fclose(fp);
+
+		return -1;
+	}
+	fclose(fp);
+
+	return 0;
+}
+
+/*
+ * write_bm_pid_to_resctrl - Write a PID (i.e. benchmark) to resctrl FS
+ * @bm_pid:		PID that should be written
+ * @ctrlgrp:		Name of the control monitor group (con_mon grp)
+ * @mongrp:		Name of the monitor group (mon grp)
+ *
+ * If a con_mon grp is requested, create it and write pid to it, otherwise
+ * write pid to root con_mon grp.
+ * If a mon grp is requested, create it and write pid to it, otherwise
+ * pid is not written, this means that pid is in con_mon grp and hence
+ * should consult con_mon grp's mon_data directory for results.
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+int write_bm_pid_to_resctrl(pid_t bm_pid, const char *ctrlgrp, const char *mongrp)
+{
+	char controlgroup[128], monitorgroup[512], monitorgroup_p[256];
+	char tasks[1024];
+	int ret = 0;
+
+	if (ctrlgrp)
+		sprintf(controlgroup, "%s/%s", RESCTRL_PATH, ctrlgrp);
+	else
+		sprintf(controlgroup, "%s", RESCTRL_PATH);
+
+	/* Create control and monitoring group and write pid into it */
+	ret = create_grp(ctrlgrp, controlgroup, RESCTRL_PATH);
+	if (ret)
+		goto out;
+	sprintf(tasks, "%s/tasks", controlgroup);
+	ret = write_pid_to_tasks(tasks, bm_pid);
+	if (ret)
+		goto out;
+
+	/* Create monitor group and write pid into if it is used */
+	if (mongrp) {
+		sprintf(monitorgroup_p, "%s/mon_groups", controlgroup);
+		sprintf(monitorgroup, "%s/%s", monitorgroup_p, mongrp);
+		ret = create_grp(mongrp, monitorgroup, monitorgroup_p);
+		if (ret)
+			goto out;
+
+		sprintf(tasks, "%s/mon_groups/%s/tasks",
+			controlgroup, mongrp);
+		ret = write_pid_to_tasks(tasks, bm_pid);
+		if (ret)
+			goto out;
+	}
+
+out:
+	ksft_print_msg("Writing benchmark parameters to resctrl FS\n");
+	if (ret)
+		ksft_print_msg("Failed writing to resctrlfs\n");
+
+	return ret;
+}
+
+/*
+ * write_schemata - Update schemata of a con_mon grp
+ * @ctrlgrp:		Name of the con_mon grp
+ * @schemata:		Schemata that should be updated to
+ * @cpu_no:		CPU number that the benchmark PID is binded to
+ * @resource:		Resctrl resource (Eg: MB, L3, L2, etc.)
+ *
+ * Update schemata of a con_mon grp *only* if requested resctrl resource is
+ * allocation type
+ *
+ * Return: 0 on success, < 0 on error.
+ */
+int write_schemata(const char *ctrlgrp, char *schemata, int cpu_no,
+		   const char *resource)
+{
+	char controlgroup[1024], reason[128], schema[1024] = {};
+	int domain_id, fd, schema_len, ret = 0;
+
+	if (!schemata) {
+		ksft_print_msg("Skipping empty schemata update\n");
+
+		return -1;
+	}
+
+	if (get_domain_id(resource, cpu_no, &domain_id) < 0) {
+		sprintf(reason, "Failed to get domain ID");
+		ret = -1;
+
+		goto out;
+	}
+
+	if (ctrlgrp)
+		sprintf(controlgroup, "%s/%s/schemata", RESCTRL_PATH, ctrlgrp);
+	else
+		sprintf(controlgroup, "%s/schemata", RESCTRL_PATH);
+
+	schema_len = snprintf(schema, sizeof(schema), "%s:%d=%s\n",
+			      resource, domain_id, schemata);
+	if (schema_len < 0 || schema_len >= sizeof(schema)) {
+		snprintf(reason, sizeof(reason),
+			 "snprintf() failed with return value : %d", schema_len);
+		ret = -1;
+		goto out;
+	}
+
+	fd = open(controlgroup, O_WRONLY);
+	if (fd < 0) {
+		snprintf(reason, sizeof(reason),
+			 "open() failed : %s", strerror(errno));
+		ret = -1;
+
+		goto err_schema_not_empty;
+	}
+	if (write(fd, schema, schema_len) < 0) {
+		snprintf(reason, sizeof(reason),
+			 "write() failed : %s", strerror(errno));
+		close(fd);
+		ret = -1;
+
+		goto err_schema_not_empty;
+	}
+	close(fd);
+
+err_schema_not_empty:
+	schema[schema_len - 1] = 0;
+out:
+	ksft_print_msg("Write schema \"%s\" to resctrl FS%s%s\n",
+		       schema, ret ? " # " : "",
+		       ret ? reason : "");
+
+	return ret;
+}
+
+bool check_resctrlfs_support(void)
+{
+	FILE *inf = fopen("/proc/filesystems", "r");
+	DIR *dp;
+	char *res;
+	bool ret = false;
+
+	if (!inf)
+		return false;
+
+	res = fgrep(inf, "nodev\tresctrl\n");
+
+	if (res) {
+		ret = true;
+		free(res);
+	}
+
+	fclose(inf);
+
+	ksft_print_msg("%s Check kernel supports resctrl filesystem\n",
+		       ret ? "Pass:" : "Fail:");
+
+	if (!ret)
+		return ret;
+
+	dp = opendir(RESCTRL_PATH);
+	ksft_print_msg("%s Check resctrl mountpoint \"%s\" exists\n",
+		       dp ? "Pass:" : "Fail:", RESCTRL_PATH);
+	if (dp)
+		closedir(dp);
+
+	ksft_print_msg("resctrl filesystem %s mounted\n",
+		       find_resctrl_mount(NULL) ? "not" : "is");
+
+	return ret;
+}
+
+char *fgrep(FILE *inf, const char *str)
+{
+	char line[256];
+	int slen = strlen(str);
+
+	while (!feof(inf)) {
+		if (!fgets(line, 256, inf))
+			break;
+		if (strncmp(line, str, slen))
+			continue;
+
+		return strdup(line);
+	}
+
+	return NULL;
+}
+
+/*
+ * resctrl_resource_exists - Check if a resource is supported.
+ * @resource:	Resctrl resource (e.g., MB, L3, L2, L3_MON, etc.)
+ *
+ * Return: True if the resource is supported, else false. False is
+ *         also returned if resctrl FS is not mounted.
+ */
+bool resctrl_resource_exists(const char *resource)
+{
+	char res_path[PATH_MAX];
+	struct stat statbuf;
+	int ret;
+
+	if (!resource)
+		return false;
+
+	ret = find_resctrl_mount(NULL);
+	if (ret)
+		return false;
+
+	snprintf(res_path, sizeof(res_path), "%s/%s", INFO_PATH, resource);
+
+	if (stat(res_path, &statbuf))
+		return false;
+
+	return true;
+}
+
+/*
+ * resctrl_mon_feature_exists - Check if requested monitoring feature is valid.
+ * @resource:	Resource that uses the mon_features file. Currently only L3_MON
+ *		is valid.
+ * @feature:	Required monitor feature (in mon_features file).
+ *
+ * Return: True if the feature is supported, else false.
+ */
+bool resctrl_mon_feature_exists(const char *resource, const char *feature)
+{
+	char res_path[PATH_MAX];
+	char *res;
+	FILE *inf;
+
+	if (!feature || !resource)
+		return false;
+
+	snprintf(res_path, sizeof(res_path), "%s/%s/mon_features", INFO_PATH, resource);
+	inf = fopen(res_path, "r");
+	if (!inf)
+		return false;
+
+	res = fgrep(inf, feature);
+	free(res);
+	fclose(inf);
+
+	return !!res;
+}
+
+/*
+ * resource_info_file_exists - Check if a file is present inside
+ * /sys/fs/resctrl/info/@resource.
+ * @resource:	Required resource (Eg: MB, L3, L2, etc.)
+ * @file:	Required file.
+ *
+ * Return: True if the /sys/fs/resctrl/info/@resource/@file exists, else false.
+ */
+bool resource_info_file_exists(const char *resource, const char *file)
+{
+	char res_path[PATH_MAX];
+	struct stat statbuf;
+
+	if (!file || !resource)
+		return false;
+
+	snprintf(res_path, sizeof(res_path), "%s/%s/%s", INFO_PATH, resource,
+		 file);
+
+	if (stat(res_path, &statbuf))
+		return false;
+
+	return true;
+}
+
+bool test_resource_feature_check(const struct resctrl_test *test)
+{
+	return resctrl_resource_exists(test->resource);
+}
+
+int filter_dmesg(void)
+{
+	char line[1024];
+	FILE *fp;
+	int pipefds[2];
+	pid_t pid;
+	int ret;
+
+	ret = pipe(pipefds);
+	if (ret) {
+		ksft_perror("pipe");
+		return ret;
+	}
+	fflush(stdout);
+	pid = fork();
+	if (pid == 0) {
+		close(pipefds[0]);
+		dup2(pipefds[1], STDOUT_FILENO);
+		execlp("dmesg", "dmesg", NULL);
+		ksft_perror("Executing dmesg");
+		exit(1);
+	}
+	close(pipefds[1]);
+	fp = fdopen(pipefds[0], "r");
+	if (!fp) {
+		ksft_perror("fdopen(pipe)");
+		kill(pid, SIGTERM);
+
+		return -1;
+	}
+
+	while (fgets(line, 1024, fp)) {
+		if (strstr(line, "intel_rdt:"))
+			ksft_print_msg("dmesg: %s", line);
+		if (strstr(line, "resctrl:"))
+			ksft_print_msg("dmesg: %s", line);
+	}
+	fclose(fp);
+	waitpid(pid, NULL, 0);
+
+	return 0;
+}
+
+int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu,
+		    int group_fd, unsigned long flags)
+{
+	int ret;
+
+	ret = syscall(__NR_perf_event_open, hw_event, pid, cpu,
+		      group_fd, flags);
+	return ret;
+}
+
+unsigned int count_bits(unsigned long n)
+{
+	unsigned int count = 0;
+
+	while (n) {
+		count += n & 1;
+		n >>= 1;
+	}
+
+	return count;
+}
+
+/**
+ * snc_kernel_support - Check for existence of mon_sub_L3_00 file that indicates
+ * SNC resctrl support on the kernel side.
+ *
+ * Return: 0 if not supported, 1 if SNC is disabled or SNC discovery is
+ * unreliable or SNC is both enabled and supported.
+ */
+int snc_kernel_support(void)
+{
+	char node_path[PATH_MAX];
+	struct stat statbuf;
+	int ret;
+
+	ret = snc_nodes_per_l3_cache();
+	/*
+	 * If SNC is disabled then its kernel support isn't important. If SNC
+	 * got disabled because the discovery process was unreliable the
+	 * snc_unreliable variable was set. It can be used to verify the SNC
+	 * discovery reliability elsewhere in the selftest.
+	 */
+	if (ret == 1)
+		return ret;
+
+	snprintf(node_path, sizeof(node_path), "%s/%s", RESCTRL_PATH,
+		 "mon_data/mon_L3_00/mon_sub_L3_00");
+
+	if (!stat(node_path, &statbuf))
+		return 1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/resctrl/settings b/tools/testing/selftests/resctrl/settings
new file mode 100644
index 000000000000..a383f3d4565b
--- /dev/null
+++ b/tools/testing/selftests/resctrl/settings
@@ -0,0 +1,3 @@
+# If running time is longer than 120 seconds when new tests are added in
+# the future, increase timeout here.
+timeout=120
diff --git a/tools/testing/selftests/ring-buffer/.gitignore b/tools/testing/selftests/ring-buffer/.gitignore
new file mode 100644
index 000000000000..3aed1a2a6c67
--- /dev/null
+++ b/tools/testing/selftests/ring-buffer/.gitignore
@@ -0,0 +1 @@
+map_test
diff --git a/tools/testing/selftests/ring-buffer/Makefile b/tools/testing/selftests/ring-buffer/Makefile
new file mode 100644
index 000000000000..23605782639e
--- /dev/null
+++ b/tools/testing/selftests/ring-buffer/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wl,-no-as-needed -Wall
+CFLAGS += $(KHDR_INCLUDES)
+
+TEST_GEN_PROGS = map_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/ring-buffer/config b/tools/testing/selftests/ring-buffer/config
new file mode 100644
index 000000000000..d936f8f00e78
--- /dev/null
+++ b/tools/testing/selftests/ring-buffer/config
@@ -0,0 +1,2 @@
+CONFIG_FTRACE=y
+CONFIG_TRACER_SNAPSHOT=y
diff --git a/tools/testing/selftests/ring-buffer/map_test.c b/tools/testing/selftests/ring-buffer/map_test.c
new file mode 100644
index 000000000000..f24677737066
--- /dev/null
+++ b/tools/testing/selftests/ring-buffer/map_test.c
@@ -0,0 +1,324 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Ring-buffer memory mapping tests
+ *
+ * Copyright (c) 2024 Vincent Donnefort <vdonnefort@google.com>
+ */
+#include <fcntl.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <linux/trace_mmap.h>
+
+#include <sys/mman.h>
+#include <sys/ioctl.h>
+
+#include "../user_events/user_events_selftests.h" /* share tracefs setup */
+#include "kselftest_harness.h"
+
+#define TRACEFS_ROOT "/sys/kernel/tracing"
+
+static int __tracefs_write(const char *path, const char *value)
+{
+	int fd, ret;
+
+	fd = open(path, O_WRONLY | O_TRUNC);
+	if (fd < 0)
+		return fd;
+
+	ret = write(fd, value, strlen(value));
+
+	close(fd);
+
+	return ret == -1 ? -errno : 0;
+}
+
+static int __tracefs_write_int(const char *path, int value)
+{
+	char *str;
+	int ret;
+
+	if (asprintf(&str, "%d", value) < 0)
+		return -1;
+
+	ret = __tracefs_write(path, str);
+
+	free(str);
+
+	return ret;
+}
+
+#define tracefs_write_int(path, value) \
+	ASSERT_EQ(__tracefs_write_int((path), (value)), 0)
+
+#define tracefs_write(path, value) \
+	ASSERT_EQ(__tracefs_write((path), (value)), 0)
+
+static int tracefs_reset(void)
+{
+	if (__tracefs_write_int(TRACEFS_ROOT"/tracing_on", 0))
+		return -1;
+	if (__tracefs_write(TRACEFS_ROOT"/trace", ""))
+		return -1;
+	if (__tracefs_write(TRACEFS_ROOT"/set_event", ""))
+		return -1;
+	if (__tracefs_write(TRACEFS_ROOT"/current_tracer", "nop"))
+		return -1;
+
+	return 0;
+}
+
+struct tracefs_cpu_map_desc {
+	struct trace_buffer_meta	*meta;
+	int				cpu_fd;
+};
+
+int tracefs_cpu_map(struct tracefs_cpu_map_desc *desc, int cpu)
+{
+	int page_size = getpagesize();
+	char *cpu_path;
+	void *map;
+
+	if (asprintf(&cpu_path,
+		     TRACEFS_ROOT"/per_cpu/cpu%d/trace_pipe_raw",
+		     cpu) < 0)
+		return -ENOMEM;
+
+	desc->cpu_fd = open(cpu_path, O_RDONLY | O_NONBLOCK);
+	free(cpu_path);
+	if (desc->cpu_fd < 0)
+		return -ENODEV;
+
+again:
+	map = mmap(NULL, page_size, PROT_READ, MAP_SHARED, desc->cpu_fd, 0);
+	if (map == MAP_FAILED)
+		return -errno;
+
+	desc->meta = (struct trace_buffer_meta *)map;
+
+	/* the meta-page is bigger than the original mapping */
+	if (page_size < desc->meta->meta_struct_len) {
+		int meta_page_size = desc->meta->meta_page_size;
+
+		munmap(desc->meta, page_size);
+		page_size = meta_page_size;
+		goto again;
+	}
+
+	return 0;
+}
+
+void tracefs_cpu_unmap(struct tracefs_cpu_map_desc *desc)
+{
+	munmap(desc->meta, desc->meta->meta_page_size);
+	close(desc->cpu_fd);
+}
+
+FIXTURE(map) {
+	struct tracefs_cpu_map_desc	map_desc;
+	bool				umount;
+};
+
+FIXTURE_VARIANT(map) {
+	int	subbuf_size;
+};
+
+FIXTURE_VARIANT_ADD(map, subbuf_size_4k) {
+	.subbuf_size = 4,
+};
+
+FIXTURE_VARIANT_ADD(map, subbuf_size_8k) {
+	.subbuf_size = 8,
+};
+
+FIXTURE_SETUP(map)
+{
+	int cpu = sched_getcpu();
+	cpu_set_t cpu_mask;
+	bool fail, umount;
+	char *message;
+
+	if (getuid() != 0)
+		SKIP(return, "Skipping: %s", "Please run the test as root");
+
+	if (!tracefs_enabled(&message, &fail, &umount)) {
+		if (fail) {
+			TH_LOG("Tracefs setup failed: %s", message);
+			ASSERT_FALSE(fail);
+		}
+		SKIP(return, "Skipping: %s", message);
+	}
+
+	self->umount = umount;
+
+	ASSERT_GE(cpu, 0);
+
+	ASSERT_EQ(tracefs_reset(), 0);
+
+	tracefs_write_int(TRACEFS_ROOT"/buffer_subbuf_size_kb", variant->subbuf_size);
+
+	ASSERT_EQ(tracefs_cpu_map(&self->map_desc, cpu), 0);
+
+	/*
+	 * Ensure generated events will be found on this very same ring-buffer.
+	 */
+	CPU_ZERO(&cpu_mask);
+	CPU_SET(cpu, &cpu_mask);
+	ASSERT_EQ(sched_setaffinity(0, sizeof(cpu_mask), &cpu_mask), 0);
+}
+
+FIXTURE_TEARDOWN(map)
+{
+	tracefs_reset();
+
+	if (self->umount)
+		tracefs_unmount();
+
+	tracefs_cpu_unmap(&self->map_desc);
+}
+
+TEST_F(map, meta_page_check)
+{
+	struct tracefs_cpu_map_desc *desc = &self->map_desc;
+	int cnt = 0;
+
+	ASSERT_EQ(desc->meta->entries, 0);
+	ASSERT_EQ(desc->meta->overrun, 0);
+	ASSERT_EQ(desc->meta->read, 0);
+
+	ASSERT_EQ(desc->meta->reader.id, 0);
+	ASSERT_EQ(desc->meta->reader.read, 0);
+
+	ASSERT_EQ(ioctl(desc->cpu_fd, TRACE_MMAP_IOCTL_GET_READER), 0);
+	ASSERT_EQ(desc->meta->reader.id, 0);
+
+	tracefs_write_int(TRACEFS_ROOT"/tracing_on", 1);
+	for (int i = 0; i < 16; i++)
+		tracefs_write_int(TRACEFS_ROOT"/trace_marker", i);
+again:
+	ASSERT_EQ(ioctl(desc->cpu_fd, TRACE_MMAP_IOCTL_GET_READER), 0);
+
+	ASSERT_EQ(desc->meta->entries, 16);
+	ASSERT_EQ(desc->meta->overrun, 0);
+	ASSERT_EQ(desc->meta->read, 16);
+
+	ASSERT_EQ(desc->meta->reader.id, 1);
+
+	if (!(cnt++))
+		goto again;
+}
+
+TEST_F(map, data_mmap)
+{
+	struct tracefs_cpu_map_desc *desc = &self->map_desc;
+	unsigned long meta_len, data_len;
+	void *data;
+
+	meta_len = desc->meta->meta_page_size;
+	data_len = desc->meta->subbuf_size * desc->meta->nr_subbufs;
+
+	/* Map all the available subbufs */
+	data = mmap(NULL, data_len, PROT_READ, MAP_SHARED,
+		    desc->cpu_fd, meta_len);
+	ASSERT_NE(data, MAP_FAILED);
+	munmap(data, data_len);
+
+	/* Map all the available subbufs - 1 */
+	data_len -= desc->meta->subbuf_size;
+	data = mmap(NULL, data_len, PROT_READ, MAP_SHARED,
+		    desc->cpu_fd, meta_len);
+	ASSERT_NE(data, MAP_FAILED);
+	munmap(data, data_len);
+
+	/* Offset within ring-buffer bounds, mapping size overflow */
+	meta_len += desc->meta->subbuf_size * 2;
+	data = mmap(NULL, data_len, PROT_READ, MAP_SHARED,
+		    desc->cpu_fd, meta_len);
+	ASSERT_EQ(data, MAP_FAILED);
+
+	/* Offset outside ring-buffer bounds */
+	data_len = desc->meta->subbuf_size * desc->meta->nr_subbufs;
+	data = mmap(NULL, data_len, PROT_READ, MAP_SHARED,
+		    desc->cpu_fd, data_len + (desc->meta->subbuf_size * 2));
+	ASSERT_EQ(data, MAP_FAILED);
+
+	/* Verify meta-page padding */
+	if (desc->meta->meta_page_size > getpagesize()) {
+		data_len = desc->meta->meta_page_size;
+		data = mmap(NULL, data_len,
+			    PROT_READ, MAP_SHARED, desc->cpu_fd, 0);
+		ASSERT_NE(data, MAP_FAILED);
+
+		for (int i = desc->meta->meta_struct_len;
+		     i < desc->meta->meta_page_size; i += sizeof(int))
+			ASSERT_EQ(*(int *)(data + i), 0);
+
+		munmap(data, data_len);
+	}
+}
+
+FIXTURE(snapshot) {
+	bool	umount;
+};
+
+FIXTURE_SETUP(snapshot)
+{
+	bool fail, umount;
+	struct stat sb;
+	char *message;
+
+	if (getuid() != 0)
+		SKIP(return, "Skipping: %s", "Please run the test as root");
+
+	if (stat(TRACEFS_ROOT"/snapshot", &sb))
+		SKIP(return, "Skipping: %s", "snapshot not available");
+
+	if (!tracefs_enabled(&message, &fail, &umount)) {
+		if (fail) {
+			TH_LOG("Tracefs setup failed: %s", message);
+			ASSERT_FALSE(fail);
+		}
+		SKIP(return, "Skipping: %s", message);
+	}
+
+	self->umount = umount;
+}
+
+FIXTURE_TEARDOWN(snapshot)
+{
+	__tracefs_write(TRACEFS_ROOT"/events/sched/sched_switch/trigger",
+			"!snapshot");
+	tracefs_reset();
+
+	if (self->umount)
+		tracefs_unmount();
+}
+
+TEST_F(snapshot, excludes_map)
+{
+	struct tracefs_cpu_map_desc map_desc;
+	int cpu = sched_getcpu();
+
+	ASSERT_GE(cpu, 0);
+	tracefs_write(TRACEFS_ROOT"/events/sched/sched_switch/trigger",
+		      "snapshot");
+	ASSERT_EQ(tracefs_cpu_map(&map_desc, cpu), -EBUSY);
+}
+
+TEST_F(snapshot, excluded_by_map)
+{
+	struct tracefs_cpu_map_desc map_desc;
+	int cpu = sched_getcpu();
+
+	ASSERT_EQ(tracefs_cpu_map(&map_desc, cpu), 0);
+
+	ASSERT_EQ(__tracefs_write(TRACEFS_ROOT"/events/sched/sched_switch/trigger",
+				  "snapshot"), -EBUSY);
+	ASSERT_EQ(__tracefs_write(TRACEFS_ROOT"/snapshot",
+				  "1"), -EBUSY);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/Makefile b/tools/testing/selftests/riscv/Makefile
new file mode 100644
index 000000000000..099b8c1f46f8
--- /dev/null
+++ b/tools/testing/selftests/riscv/Makefile
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: GPL-2.0
+# Originally tools/testing/arm64/Makefile
+
+# When ARCH not overridden for crosscompiling, lookup machine
+ARCH ?= $(shell uname -m 2>/dev/null || echo not)
+
+ifneq (,$(filter $(ARCH),riscv))
+RISCV_SUBTARGETS ?= abi hwprobe mm sigreturn vector
+else
+RISCV_SUBTARGETS :=
+endif
+
+CFLAGS := -Wall -O2 -g
+
+# A proper top_srcdir is needed by KSFT(lib.mk)
+top_srcdir = $(realpath ../../../../)
+
+# Additional include paths needed by kselftest.h and local headers
+CFLAGS += -I$(top_srcdir)/tools/testing/selftests/
+
+CFLAGS += $(KHDR_INCLUDES)
+
+export CFLAGS
+export top_srcdir
+
+all:
+	@for DIR in $(RISCV_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		mkdir -p $$BUILD_TARGET;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+install: all
+	@for DIR in $(RISCV_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+run_tests: all
+	@for DIR in $(RISCV_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+# Avoid any output on non riscv on emit_tests
+emit_tests:
+	@for DIR in $(RISCV_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+clean:
+	@for DIR in $(RISCV_SUBTARGETS); do				\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;			\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$DIR $@;		\
+	done
+
+.PHONY: all clean install run_tests emit_tests
diff --git a/tools/testing/selftests/riscv/README b/tools/testing/selftests/riscv/README
new file mode 100644
index 000000000000..443da395da68
--- /dev/null
+++ b/tools/testing/selftests/riscv/README
@@ -0,0 +1,24 @@
+KSelfTest RISC-V
+================
+
+- These tests are riscv specific and so not built or run but just skipped
+  completely when env-variable ARCH is found to be different than 'riscv'.
+
+- Holding true the above, RISC-V KSFT tests can be run within the
+  KSelfTest framework using standard Linux top-level-makefile targets:
+
+      $ make TARGETS=riscv kselftest-clean
+      $ make TARGETS=riscv kselftest
+
+      or
+
+      $ make -C tools/testing/selftests TARGETS=riscv \
+		INSTALL_PATH=<your-installation-path> install
+
+      or, alternatively, only specific riscv/ subtargets can be picked:
+
+      $ make -C tools/testing/selftests TARGETS=riscv RISCV_SUBTARGETS="mm vector" \
+		INSTALL_PATH=<your-installation-path> install
+
+   Further details on building and running KSFT can be found in:
+     Documentation/dev-tools/kselftest.rst
diff --git a/tools/testing/selftests/riscv/abi/.gitignore b/tools/testing/selftests/riscv/abi/.gitignore
new file mode 100644
index 000000000000..b38358f91c4d
--- /dev/null
+++ b/tools/testing/selftests/riscv/abi/.gitignore
@@ -0,0 +1 @@
+pointer_masking
diff --git a/tools/testing/selftests/riscv/abi/Makefile b/tools/testing/selftests/riscv/abi/Makefile
new file mode 100644
index 000000000000..ed82ff9c664e
--- /dev/null
+++ b/tools/testing/selftests/riscv/abi/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+
+CFLAGS += -I$(top_srcdir)/tools/include
+
+TEST_GEN_PROGS := pointer_masking
+
+include ../../lib.mk
+
+$(OUTPUT)/pointer_masking: pointer_masking.c
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
diff --git a/tools/testing/selftests/riscv/abi/pointer_masking.c b/tools/testing/selftests/riscv/abi/pointer_masking.c
new file mode 100644
index 000000000000..2d540af7b558
--- /dev/null
+++ b/tools/testing/selftests/riscv/abi/pointer_masking.c
@@ -0,0 +1,348 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <errno.h>
+#include <fcntl.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#ifndef PR_PMLEN_SHIFT
+#define PR_PMLEN_SHIFT			24
+#endif
+#ifndef PR_PMLEN_MASK
+#define PR_PMLEN_MASK			(0x7fUL << PR_PMLEN_SHIFT)
+#endif
+
+static int dev_zero;
+
+static int pipefd[2];
+
+static sigjmp_buf jmpbuf;
+
+static void sigsegv_handler(int sig)
+{
+	siglongjmp(jmpbuf, 1);
+}
+
+static int min_pmlen;
+static int max_pmlen;
+
+static inline bool valid_pmlen(int pmlen)
+{
+	return pmlen == 0 || pmlen == 7 || pmlen == 16;
+}
+
+static void test_pmlen(void)
+{
+	ksft_print_msg("Testing available PMLEN values\n");
+
+	for (int request = 0; request <= 16; request++) {
+		int pmlen, ret;
+
+		ret = prctl(PR_SET_TAGGED_ADDR_CTRL, request << PR_PMLEN_SHIFT, 0, 0, 0);
+		if (ret)
+			goto pr_set_error;
+
+		ret = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0);
+		ksft_test_result(ret >= 0, "PMLEN=%d PR_GET_TAGGED_ADDR_CTRL\n", request);
+		if (ret < 0)
+			goto pr_get_error;
+
+		pmlen = (ret & PR_PMLEN_MASK) >> PR_PMLEN_SHIFT;
+		ksft_test_result(pmlen >= request, "PMLEN=%d constraint\n", request);
+		ksft_test_result(valid_pmlen(pmlen), "PMLEN=%d validity\n", request);
+
+		if (min_pmlen == 0)
+			min_pmlen = pmlen;
+		if (max_pmlen < pmlen)
+			max_pmlen = pmlen;
+
+		continue;
+
+pr_set_error:
+		ksft_test_result_skip("PMLEN=%d PR_GET_TAGGED_ADDR_CTRL\n", request);
+pr_get_error:
+		ksft_test_result_skip("PMLEN=%d constraint\n", request);
+		ksft_test_result_skip("PMLEN=%d validity\n", request);
+	}
+
+	if (max_pmlen == 0)
+		ksft_exit_fail_msg("Failed to enable pointer masking\n");
+}
+
+static int set_tagged_addr_ctrl(int pmlen, bool tagged_addr_abi)
+{
+	int arg, ret;
+
+	arg = pmlen << PR_PMLEN_SHIFT | tagged_addr_abi;
+	ret = prctl(PR_SET_TAGGED_ADDR_CTRL, arg, 0, 0, 0);
+	if (!ret) {
+		ret = prctl(PR_GET_TAGGED_ADDR_CTRL, 0, 0, 0, 0);
+		if (ret == arg)
+			return 0;
+	}
+
+	return ret < 0 ? -errno : -ENODATA;
+}
+
+static void test_dereference_pmlen(int pmlen)
+{
+	static volatile int i;
+	volatile int *p;
+	int ret;
+
+	ret = set_tagged_addr_ctrl(pmlen, false);
+	if (ret)
+		return ksft_test_result_error("PMLEN=%d setup (%d)\n", pmlen, ret);
+
+	i = pmlen;
+
+	if (pmlen) {
+		p = (volatile int *)((uintptr_t)&i | 1UL << (__riscv_xlen - pmlen));
+
+		/* These dereferences should succeed. */
+		if (sigsetjmp(jmpbuf, 1))
+			return ksft_test_result_fail("PMLEN=%d valid tag\n", pmlen);
+		if (*p != pmlen)
+			return ksft_test_result_fail("PMLEN=%d bad value\n", pmlen);
+		++*p;
+	}
+
+	p = (volatile int *)((uintptr_t)&i | 1UL << (__riscv_xlen - pmlen - 1));
+
+	/* These dereferences should raise SIGSEGV. */
+	if (sigsetjmp(jmpbuf, 1))
+		return ksft_test_result_pass("PMLEN=%d dereference\n", pmlen);
+	++*p;
+	ksft_test_result_fail("PMLEN=%d invalid tag\n", pmlen);
+}
+
+static void test_dereference(void)
+{
+	ksft_print_msg("Testing userspace pointer dereference\n");
+
+	signal(SIGSEGV, sigsegv_handler);
+
+	test_dereference_pmlen(0);
+	test_dereference_pmlen(min_pmlen);
+	test_dereference_pmlen(max_pmlen);
+
+	signal(SIGSEGV, SIG_DFL);
+}
+
+static void execve_child_sigsegv_handler(int sig)
+{
+	exit(42);
+}
+
+static int execve_child(void)
+{
+	static volatile int i;
+	volatile int *p = (volatile int *)((uintptr_t)&i | 1UL << (__riscv_xlen - 7));
+
+	signal(SIGSEGV, execve_child_sigsegv_handler);
+
+	/* This dereference should raise SIGSEGV. */
+	return *p;
+}
+
+static void test_fork_exec(void)
+{
+	int ret, status;
+
+	ksft_print_msg("Testing fork/exec behavior\n");
+
+	ret = set_tagged_addr_ctrl(min_pmlen, false);
+	if (ret)
+		return ksft_test_result_error("setup (%d)\n", ret);
+
+	if (fork()) {
+		wait(&status);
+		ksft_test_result(WIFEXITED(status) && WEXITSTATUS(status) == 42,
+				 "dereference after fork\n");
+	} else {
+		static volatile int i = 42;
+		volatile int *p;
+
+		p = (volatile int *)((uintptr_t)&i | 1UL << (__riscv_xlen - min_pmlen));
+
+		/* This dereference should succeed. */
+		exit(*p);
+	}
+
+	if (fork()) {
+		wait(&status);
+		ksft_test_result(WIFEXITED(status) && WEXITSTATUS(status) == 42,
+				 "dereference after fork+exec\n");
+	} else {
+		/* Will call execve_child(). */
+		execve("/proc/self/exe", (char *const []) { "", NULL }, NULL);
+	}
+}
+
+static bool pwrite_wrapper(int fd, void *buf, size_t count, const char *msg)
+{
+	int ret = pwrite(fd, buf, count, 0);
+
+	if (ret != count) {
+		ksft_perror(msg);
+		return false;
+	}
+	return true;
+}
+
+static void test_tagged_addr_abi_sysctl(void)
+{
+	char *err_pwrite_msg = "failed to write to /proc/sys/abi/tagged_addr_disabled\n";
+	char value;
+	int fd;
+
+	ksft_print_msg("Testing tagged address ABI sysctl\n");
+
+	fd = open("/proc/sys/abi/tagged_addr_disabled", O_WRONLY);
+	if (fd < 0) {
+		ksft_test_result_skip("failed to open sysctl file\n");
+		ksft_test_result_skip("failed to open sysctl file\n");
+		return;
+	}
+
+	value = '1';
+	if (!pwrite_wrapper(fd, &value, 1, "write '1'"))
+		ksft_test_result_fail(err_pwrite_msg);
+	else
+		ksft_test_result(set_tagged_addr_ctrl(min_pmlen, true) == -EINVAL,
+				 "sysctl disabled\n");
+
+	value = '0';
+	if (!pwrite_wrapper(fd, &value, 1, "write '0'"))
+		ksft_test_result_fail(err_pwrite_msg);
+	else
+		ksft_test_result(set_tagged_addr_ctrl(min_pmlen, true) == 0,
+				 "sysctl enabled\n");
+
+	set_tagged_addr_ctrl(0, false);
+
+	close(fd);
+}
+
+static void test_tagged_addr_abi_pmlen(int pmlen)
+{
+	int i, *p, ret;
+
+	i = ~pmlen;
+
+	if (pmlen) {
+		p = (int *)((uintptr_t)&i | 1UL << (__riscv_xlen - pmlen));
+
+		ret = set_tagged_addr_ctrl(pmlen, false);
+		if (ret)
+			return ksft_test_result_error("PMLEN=%d ABI disabled setup (%d)\n",
+						      pmlen, ret);
+
+		ret = write(pipefd[1], p, sizeof(*p));
+		if (ret >= 0 || errno != EFAULT)
+			return ksft_test_result_fail("PMLEN=%d ABI disabled write\n", pmlen);
+
+		ret = read(dev_zero, p, sizeof(*p));
+		if (ret >= 0 || errno != EFAULT)
+			return ksft_test_result_fail("PMLEN=%d ABI disabled read\n", pmlen);
+
+		if (i != ~pmlen)
+			return ksft_test_result_fail("PMLEN=%d ABI disabled value\n", pmlen);
+
+		ret = set_tagged_addr_ctrl(pmlen, true);
+		if (ret)
+			return ksft_test_result_error("PMLEN=%d ABI enabled setup (%d)\n",
+						      pmlen, ret);
+
+		ret = write(pipefd[1], p, sizeof(*p));
+		if (ret != sizeof(*p))
+			return ksft_test_result_fail("PMLEN=%d ABI enabled write\n", pmlen);
+
+		ret = read(dev_zero, p, sizeof(*p));
+		if (ret != sizeof(*p))
+			return ksft_test_result_fail("PMLEN=%d ABI enabled read\n", pmlen);
+
+		if (i)
+			return ksft_test_result_fail("PMLEN=%d ABI enabled value\n", pmlen);
+
+		i = ~pmlen;
+	} else {
+		/* The tagged address ABI cannot be enabled when PMLEN == 0. */
+		ret = set_tagged_addr_ctrl(pmlen, true);
+		if (ret != -EINVAL)
+			return ksft_test_result_error("PMLEN=%d ABI setup (%d)\n",
+						      pmlen, ret);
+	}
+
+	p = (int *)((uintptr_t)&i | 1UL << (__riscv_xlen - pmlen - 1));
+
+	ret = write(pipefd[1], p, sizeof(*p));
+	if (ret >= 0 || errno != EFAULT)
+		return ksft_test_result_fail("PMLEN=%d invalid tag write (%d)\n", pmlen, errno);
+
+	ret = read(dev_zero, p, sizeof(*p));
+	if (ret >= 0 || errno != EFAULT)
+		return ksft_test_result_fail("PMLEN=%d invalid tag read\n", pmlen);
+
+	if (i != ~pmlen)
+		return ksft_test_result_fail("PMLEN=%d invalid tag value\n", pmlen);
+
+	ksft_test_result_pass("PMLEN=%d tagged address ABI\n", pmlen);
+}
+
+static void test_tagged_addr_abi(void)
+{
+	ksft_print_msg("Testing tagged address ABI\n");
+
+	test_tagged_addr_abi_pmlen(0);
+	test_tagged_addr_abi_pmlen(min_pmlen);
+	test_tagged_addr_abi_pmlen(max_pmlen);
+}
+
+static struct test_info {
+	unsigned int nr_tests;
+	void (*test_fn)(void);
+} tests[] = {
+	{ .nr_tests = 17 * 3, test_pmlen },
+	{ .nr_tests = 3, test_dereference },
+	{ .nr_tests = 2, test_fork_exec },
+	{ .nr_tests = 2, test_tagged_addr_abi_sysctl },
+	{ .nr_tests = 3, test_tagged_addr_abi },
+};
+
+int main(int argc, char **argv)
+{
+	unsigned int plan = 0;
+	int ret;
+
+	/* Check if this is the child process after execve(). */
+	if (!argv[0][0])
+		return execve_child();
+
+	dev_zero = open("/dev/zero", O_RDWR);
+	if (dev_zero < 0)
+		return 1;
+
+	/* Write to a pipe so the kernel must dereference the buffer pointer. */
+	ret = pipe(pipefd);
+	if (ret)
+		return 1;
+
+	ksft_print_header();
+
+	for (int i = 0; i < ARRAY_SIZE(tests); i++)
+		plan += tests[i].nr_tests;
+
+	ksft_set_plan(plan);
+
+	for (int i = 0; i < ARRAY_SIZE(tests); i++)
+		tests[i].test_fn();
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/riscv/hwprobe/.gitignore b/tools/testing/selftests/riscv/hwprobe/.gitignore
new file mode 100644
index 000000000000..6e384e80ea1a
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/.gitignore
@@ -0,0 +1,3 @@
+hwprobe
+cbo
+which-cpus
diff --git a/tools/testing/selftests/riscv/hwprobe/Makefile b/tools/testing/selftests/riscv/hwprobe/Makefile
new file mode 100644
index 000000000000..cec81610a5f2
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/Makefile
@@ -0,0 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 ARM Limited
+# Originally tools/testing/arm64/abi/Makefile
+
+CFLAGS += -I$(top_srcdir)/tools/include
+
+TEST_GEN_PROGS := hwprobe cbo which-cpus
+
+include ../../lib.mk
+
+$(OUTPUT)/hwprobe: hwprobe.c sys_hwprobe.S
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
+
+$(OUTPUT)/cbo: cbo.c sys_hwprobe.S
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
+
+$(OUTPUT)/which-cpus: which-cpus.c sys_hwprobe.S
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
diff --git a/tools/testing/selftests/riscv/hwprobe/cbo.c b/tools/testing/selftests/riscv/hwprobe/cbo.c
new file mode 100644
index 000000000000..f254b2edd6ce
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/cbo.c
@@ -0,0 +1,377 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Ventana Micro Systems Inc.
+ *
+ * Run with 'taskset -c <cpu-list> cbo' to only execute hwprobe on a
+ * subset of cpus, as well as only executing the tests on those cpus.
+ */
+#define _GNU_SOURCE
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+#include <sched.h>
+#include <signal.h>
+#include <assert.h>
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <asm/ucontext.h>
+#include <getopt.h>
+
+#include "hwprobe.h"
+#include "kselftest.h"
+
+#define MK_CBO(fn) le32_bswap((uint32_t)(fn) << 20 | 10 << 15 | 2 << 12 | 0 << 7 | 15)
+#define MK_PREFETCH(fn) \
+	le32_bswap(0 << 25 | (uint32_t)(fn) << 20 | 10 << 15 | 6 << 12 | 0 << 7 | 19)
+
+static char mem[4096] __aligned(4096) = { [0 ... 4095] = 0xa5 };
+
+static bool got_fault;
+
+static void fault_handler(int sig, siginfo_t *info, void *context)
+{
+	unsigned long *regs = (unsigned long *)&((ucontext_t *)context)->uc_mcontext;
+	uint32_t insn = *(uint32_t *)regs[0];
+
+	if (sig == SIGILL)
+		assert(insn == MK_CBO(regs[11]));
+
+	if (sig == SIGSEGV || sig == SIGBUS)
+		assert(insn == MK_PREFETCH(regs[11]));
+
+	got_fault = true;
+	regs[0] += 4;
+}
+
+#define cbo_insn(base, fn)							\
+({										\
+	asm volatile(								\
+	"mv	a0, %0\n"							\
+	"li	a1, %1\n"							\
+	".4byte	%2\n"								\
+	: : "r" (base), "i" (fn), "i" (MK_CBO(fn)) : "a0", "a1", "memory");	\
+})
+
+#define prefetch_insn(base, fn)							\
+({										\
+	asm volatile(								\
+	"mv	a0, %0\n"							\
+	"li	a1, %1\n"							\
+	".4byte	%2\n"								\
+	: : "r" (base), "i" (fn), "i" (MK_PREFETCH(fn)) : "a0", "a1");		\
+})
+
+static void cbo_inval(char *base) { cbo_insn(base, 0); }
+static void cbo_clean(char *base) { cbo_insn(base, 1); }
+static void cbo_flush(char *base) { cbo_insn(base, 2); }
+static void cbo_zero(char *base)  { cbo_insn(base, 4); }
+static void prefetch_i(char *base) { prefetch_insn(base, 0); }
+static void prefetch_r(char *base) { prefetch_insn(base, 1); }
+static void prefetch_w(char *base) { prefetch_insn(base, 3); }
+
+static void test_no_cbo_inval(void *arg)
+{
+	ksft_print_msg("Testing cbo.inval instruction remain privileged\n");
+	got_fault = false;
+	cbo_inval(&mem[0]);
+	ksft_test_result(got_fault, "No cbo.inval\n");
+}
+
+static void test_no_zicbom(void *arg)
+{
+	ksft_print_msg("Testing Zicbom instructions remain privileged\n");
+
+	got_fault = false;
+	cbo_clean(&mem[0]);
+	ksft_test_result(got_fault, "No cbo.clean\n");
+
+	got_fault = false;
+	cbo_flush(&mem[0]);
+	ksft_test_result(got_fault, "No cbo.flush\n");
+}
+
+static void test_no_zicboz(void *arg)
+{
+	ksft_print_msg("No Zicboz, testing cbo.zero remains privileged\n");
+
+	got_fault = false;
+	cbo_zero(&mem[0]);
+	ksft_test_result(got_fault, "No cbo.zero\n");
+}
+
+static bool is_power_of_2(__u64 n)
+{
+	return n != 0 && (n & (n - 1)) == 0;
+}
+
+static void test_zicbop(void *arg)
+{
+	struct riscv_hwprobe pair = {
+		.key = RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE,
+	};
+	struct sigaction act = {
+		.sa_sigaction = &fault_handler,
+		.sa_flags = SA_SIGINFO
+	};
+	struct sigaction dfl = {
+		.sa_handler = SIG_DFL
+	};
+	cpu_set_t *cpus = (cpu_set_t *)arg;
+	__u64 block_size;
+	long rc;
+
+	rc = sigaction(SIGSEGV, &act, NULL);
+	assert(rc == 0);
+	rc = sigaction(SIGBUS, &act, NULL);
+	assert(rc == 0);
+
+	rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)cpus, 0);
+	block_size = pair.value;
+	ksft_test_result(rc == 0 && pair.key == RISCV_HWPROBE_KEY_ZICBOP_BLOCK_SIZE &&
+			 is_power_of_2(block_size), "Zicbop block size\n");
+	ksft_print_msg("Zicbop block size: %llu\n", block_size);
+
+	got_fault = false;
+	prefetch_i(&mem[0]);
+	prefetch_r(&mem[0]);
+	prefetch_w(&mem[0]);
+	ksft_test_result(!got_fault, "Zicbop prefetch.* on valid address\n");
+
+	got_fault = false;
+	prefetch_i(NULL);
+	prefetch_r(NULL);
+	prefetch_w(NULL);
+	ksft_test_result(!got_fault, "Zicbop prefetch.* on NULL\n");
+
+	rc = sigaction(SIGBUS, &dfl, NULL);
+	assert(rc == 0);
+	rc = sigaction(SIGSEGV, &dfl, NULL);
+	assert(rc == 0);
+}
+
+static void test_zicbom(void *arg)
+{
+	struct riscv_hwprobe pair = {
+		.key = RISCV_HWPROBE_KEY_ZICBOM_BLOCK_SIZE,
+	};
+	cpu_set_t *cpus = (cpu_set_t *)arg;
+	__u64 block_size;
+	long rc;
+
+	rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)cpus, 0);
+	block_size = pair.value;
+	ksft_test_result(rc == 0 && pair.key == RISCV_HWPROBE_KEY_ZICBOM_BLOCK_SIZE &&
+			 is_power_of_2(block_size), "Zicbom block size\n");
+	ksft_print_msg("Zicbom block size: %llu\n", block_size);
+
+	got_fault = false;
+	cbo_clean(&mem[block_size]);
+	ksft_test_result(!got_fault, "cbo.clean\n");
+
+	got_fault = false;
+	cbo_flush(&mem[block_size]);
+	ksft_test_result(!got_fault, "cbo.flush\n");
+}
+
+static void test_zicboz(void *arg)
+{
+	struct riscv_hwprobe pair = {
+		.key = RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE,
+	};
+	cpu_set_t *cpus = (cpu_set_t *)arg;
+	__u64 block_size;
+	int i, j;
+	long rc;
+
+	rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)cpus, 0);
+	block_size = pair.value;
+	ksft_test_result(rc == 0 && pair.key == RISCV_HWPROBE_KEY_ZICBOZ_BLOCK_SIZE &&
+			 is_power_of_2(block_size), "Zicboz block size\n");
+	ksft_print_msg("Zicboz block size: %llu\n", block_size);
+
+	got_fault = false;
+	cbo_zero(&mem[block_size]);
+	ksft_test_result(!got_fault, "cbo.zero\n");
+
+	if (got_fault || !is_power_of_2(block_size)) {
+		ksft_test_result_skip("cbo.zero check\n");
+		return;
+	}
+
+	assert(block_size <= 1024);
+
+	for (i = 0; i < 4096 / block_size; ++i) {
+		if (i % 2)
+			cbo_zero(&mem[i * block_size]);
+	}
+
+	for (i = 0; i < 4096 / block_size; ++i) {
+		char expected = i % 2 ? 0x0 : 0xa5;
+
+		for (j = 0; j < block_size; ++j) {
+			if (mem[i * block_size + j] != expected) {
+				ksft_test_result_fail("cbo.zero check\n");
+				ksft_print_msg("cbo.zero check: mem[%llu] != 0x%x\n",
+					       i * block_size + j, expected);
+				return;
+			}
+		}
+	}
+
+	ksft_test_result_pass("cbo.zero check\n");
+}
+
+static void check_no_zicbo_cpus(cpu_set_t *cpus, __u64 cbo)
+{
+	struct riscv_hwprobe pair = {
+		.key = RISCV_HWPROBE_KEY_IMA_EXT_0,
+	};
+	cpu_set_t one_cpu;
+	int i = 0, c = 0;
+	long rc;
+	char *cbostr;
+
+	while (i++ < CPU_COUNT(cpus)) {
+		while (!CPU_ISSET(c, cpus))
+			++c;
+
+		CPU_ZERO(&one_cpu);
+		CPU_SET(c, &one_cpu);
+
+		rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)&one_cpu, 0);
+		assert(rc == 0 && pair.key == RISCV_HWPROBE_KEY_IMA_EXT_0);
+
+		switch (cbo) {
+		case RISCV_HWPROBE_EXT_ZICBOZ:
+			cbostr = "Zicboz";
+			break;
+		case RISCV_HWPROBE_EXT_ZICBOM:
+			cbostr = "Zicbom";
+			break;
+		case RISCV_HWPROBE_EXT_ZICBOP:
+			cbostr = "Zicbop";
+			break;
+		default:
+			ksft_exit_fail_msg("Internal error: invalid cbo %llu\n", cbo);
+		}
+
+		if (pair.value & cbo)
+			ksft_exit_fail_msg("%s is only present on a subset of harts.\n"
+					   "Use taskset to select a set of harts where %s\n"
+					   "presence (present or not) is consistent for each hart\n",
+					   cbostr, cbostr);
+		++c;
+	}
+}
+
+enum {
+	TEST_ZICBOZ,
+	TEST_NO_ZICBOZ,
+	TEST_ZICBOM,
+	TEST_NO_ZICBOM,
+	TEST_NO_CBO_INVAL,
+	TEST_ZICBOP,
+};
+
+static struct test_info {
+	bool enabled;
+	unsigned int nr_tests;
+	void (*test_fn)(void *arg);
+} tests[] = {
+	[TEST_ZICBOZ]		= { .nr_tests = 3, test_zicboz },
+	[TEST_NO_ZICBOZ]	= { .nr_tests = 1, test_no_zicboz },
+	[TEST_ZICBOM]		= { .nr_tests = 3, test_zicbom },
+	[TEST_NO_ZICBOM]	= { .nr_tests = 2, test_no_zicbom },
+	[TEST_NO_CBO_INVAL]	= { .nr_tests = 1, test_no_cbo_inval },
+	[TEST_ZICBOP]		= { .nr_tests = 3, test_zicbop },
+};
+
+static const struct option long_opts[] = {
+	{"zicbom-raises-sigill", no_argument, 0, 'm'},
+	{"zicboz-raises-sigill", no_argument, 0, 'z'},
+	{0, 0, 0, 0}
+};
+
+int main(int argc, char **argv)
+{
+	struct sigaction act = {
+		.sa_sigaction = &fault_handler,
+		.sa_flags = SA_SIGINFO,
+	};
+	struct riscv_hwprobe pair;
+	unsigned int plan = 0;
+	cpu_set_t cpus;
+	long rc;
+	int i, opt, long_index;
+
+	long_index = 0;
+
+	while ((opt = getopt_long(argc, argv, "mz", long_opts, &long_index)) != -1) {
+		switch (opt) {
+		case 'm':
+			tests[TEST_NO_ZICBOM].enabled = true;
+			tests[TEST_NO_CBO_INVAL].enabled = true;
+			rc = sigaction(SIGILL, &act, NULL);
+			assert(rc == 0);
+			break;
+		case 'z':
+			tests[TEST_NO_ZICBOZ].enabled = true;
+			tests[TEST_NO_CBO_INVAL].enabled = true;
+			rc = sigaction(SIGILL, &act, NULL);
+			assert(rc == 0);
+			break;
+		case '?':
+			fprintf(stderr,
+				"Usage: %s [--zicbom-raises-sigill|-m] [--zicboz-raises-sigill|-z]\n",
+				argv[0]);
+			exit(1);
+		default:
+			break;
+		}
+	}
+
+	rc = sched_getaffinity(0, sizeof(cpu_set_t), &cpus);
+	assert(rc == 0);
+
+	ksft_print_header();
+
+	pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0;
+	rc = riscv_hwprobe(&pair, 1, sizeof(cpu_set_t), (unsigned long *)&cpus, 0);
+	if (rc < 0)
+		ksft_exit_fail_msg("hwprobe() failed with %ld\n", rc);
+	assert(rc == 0 && pair.key == RISCV_HWPROBE_KEY_IMA_EXT_0);
+
+	if (pair.value & RISCV_HWPROBE_EXT_ZICBOZ) {
+		tests[TEST_ZICBOZ].enabled = true;
+		tests[TEST_NO_ZICBOZ].enabled = false;
+	} else {
+		check_no_zicbo_cpus(&cpus, RISCV_HWPROBE_EXT_ZICBOZ);
+	}
+
+	if (pair.value & RISCV_HWPROBE_EXT_ZICBOM) {
+		tests[TEST_ZICBOM].enabled = true;
+		tests[TEST_NO_ZICBOM].enabled = false;
+	} else {
+		check_no_zicbo_cpus(&cpus, RISCV_HWPROBE_EXT_ZICBOM);
+	}
+
+	if (pair.value & RISCV_HWPROBE_EXT_ZICBOP)
+		tests[TEST_ZICBOP].enabled = true;
+	else
+		check_no_zicbo_cpus(&cpus, RISCV_HWPROBE_EXT_ZICBOP);
+
+	for (i = 0; i < ARRAY_SIZE(tests); ++i)
+		plan += tests[i].enabled ? tests[i].nr_tests : 0;
+
+	if (plan == 0)
+		ksft_print_msg("No tests enabled.\n");
+	else
+		ksft_set_plan(plan);
+
+	for (i = 0; i < ARRAY_SIZE(tests); ++i) {
+		if (tests[i].enabled)
+			tests[i].test_fn(&cpus);
+	}
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/riscv/hwprobe/hwprobe.c b/tools/testing/selftests/riscv/hwprobe/hwprobe.c
new file mode 100644
index 000000000000..54c435af9923
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/hwprobe.c
@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "hwprobe.h"
+#include "kselftest.h"
+
+int main(int argc, char **argv)
+{
+	struct riscv_hwprobe pairs[8];
+	unsigned long cpus;
+	long out;
+
+	ksft_print_header();
+	ksft_set_plan(5);
+
+	/* Fake the CPU_SET ops. */
+	cpus = -1;
+
+	/*
+	 * Just run a basic test: pass enough pairs to get up to the base
+	 * behavior, and then check to make sure it's sane.
+	 */
+	for (long i = 0; i < 8; i++)
+		pairs[i].key = i;
+
+	out = riscv_hwprobe(pairs, 8, 1, &cpus, 0);
+	if (out != 0)
+		ksft_exit_fail_msg("hwprobe() failed with %ld\n", out);
+
+	for (long i = 0; i < 4; ++i) {
+		/* Fail if the kernel claims not to recognize a base key. */
+		if ((i < 4) && (pairs[i].key != i))
+			ksft_exit_fail_msg("Failed to recognize base key: key != i, "
+					   "key=%lld, i=%ld\n", pairs[i].key, i);
+
+		if (pairs[i].key != RISCV_HWPROBE_KEY_BASE_BEHAVIOR)
+			continue;
+
+		if (pairs[i].value & RISCV_HWPROBE_BASE_BEHAVIOR_IMA)
+			continue;
+
+		ksft_exit_fail_msg("Unexpected pair: (%lld, %llu)\n", pairs[i].key, pairs[i].value);
+	}
+
+	out = riscv_hwprobe(pairs, 8, 0, 0, 0);
+	ksft_test_result(out == 0, "NULL CPU set\n");
+
+	out = riscv_hwprobe(pairs, 8, 0, &cpus, 0);
+	ksft_test_result(out != 0, "Bad CPU set\n");
+
+	out = riscv_hwprobe(pairs, 8, 1, 0, 0);
+	ksft_test_result(out != 0, "NULL CPU set with non-zero size\n");
+
+	pairs[0].key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR;
+	out = riscv_hwprobe(pairs, 1, 1, &cpus, 0);
+	ksft_test_result(out == 0 && pairs[0].key == RISCV_HWPROBE_KEY_BASE_BEHAVIOR,
+			 "Existing key is maintained\n");
+
+	pairs[0].key = 0x5555;
+	pairs[1].key = 1;
+	pairs[1].value = 0xAAAA;
+	out = riscv_hwprobe(pairs, 2, 0, 0, 0);
+	ksft_test_result(out == 0 && pairs[0].key == -1 &&
+			 pairs[1].key == 1 && pairs[1].value != 0xAAAA,
+			 "Unknown key overwritten with -1 and doesn't block other elements\n");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/riscv/hwprobe/hwprobe.h b/tools/testing/selftests/riscv/hwprobe/hwprobe.h
new file mode 100644
index 000000000000..f3de970c3222
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/hwprobe.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef SELFTEST_RISCV_HWPROBE_H
+#define SELFTEST_RISCV_HWPROBE_H
+#include <stddef.h>
+#include <asm/hwprobe.h>
+
+#if __BYTE_ORDER == __BIG_ENDIAN
+# define le32_bswap(_x)				\
+	((((_x) & 0x000000ffU) << 24) |		\
+	 (((_x) & 0x0000ff00U) <<  8) |		\
+	 (((_x) & 0x00ff0000U) >>  8) |		\
+	 (((_x) & 0xff000000U) >> 24))
+#else
+# define le32_bswap(_x) (_x)
+#endif
+
+/*
+ * Rather than relying on having a new enough libc to define this, just do it
+ * ourselves.  This way we don't need to be coupled to a new-enough libc to
+ * contain the call.
+ */
+long riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count,
+		   size_t cpusetsize, unsigned long *cpus, unsigned int flags);
+
+#endif
diff --git a/tools/testing/selftests/riscv/hwprobe/sys_hwprobe.S b/tools/testing/selftests/riscv/hwprobe/sys_hwprobe.S
new file mode 100644
index 000000000000..a4773c88d267
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/sys_hwprobe.S
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2023 Rivos, Inc */
+
+.text
+.global riscv_hwprobe
+riscv_hwprobe:
+	# Put __NR_riscv_hwprobe in the syscall number register, then just shim
+	# back the kernel's return.  This doesn't do any sort of errno
+	# handling, the caller can deal with it.
+	li a7, 258
+	ecall
+	ret
diff --git a/tools/testing/selftests/riscv/hwprobe/which-cpus.c b/tools/testing/selftests/riscv/hwprobe/which-cpus.c
new file mode 100644
index 000000000000..3ab53067e8dd
--- /dev/null
+++ b/tools/testing/selftests/riscv/hwprobe/which-cpus.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2023 Ventana Micro Systems Inc.
+ *
+ * Test the RISCV_HWPROBE_WHICH_CPUS flag of hwprobe. Also provides a command
+ * line interface to get the cpu list for arbitrary hwprobe pairs.
+ */
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sched.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include "hwprobe.h"
+#include "kselftest.h"
+
+static void help(void)
+{
+	printf("\n"
+	       "which-cpus: [-h] [<key=value> [<key=value> ...]]\n\n"
+	       "   Without parameters, tests the RISCV_HWPROBE_WHICH_CPUS flag of hwprobe.\n"
+	       "   With parameters, where each parameter is a hwprobe pair written as\n"
+	       "   <key=value>, outputs the cpulist for cpus which all match the given set\n"
+	       "   of pairs.  'key' and 'value' should be in numeric form, e.g. 4=0x3b\n");
+}
+
+static void print_cpulist(cpu_set_t *cpus)
+{
+	int start = 0, end = 0;
+
+	if (!CPU_COUNT(cpus)) {
+		printf("cpus: None\n");
+		return;
+	}
+
+	printf("cpus:");
+	for (int i = 0, c = 0; i < CPU_COUNT(cpus); i++, c++) {
+		if (start != end && !CPU_ISSET(c, cpus))
+			printf("-%d", end);
+
+		while (!CPU_ISSET(c, cpus))
+			++c;
+
+		if (i != 0 && c == end + 1) {
+			end = c;
+			continue;
+		}
+
+		printf("%c%d", i == 0 ? ' ' : ',', c);
+		start = end = c;
+	}
+	if (start != end)
+		printf("-%d", end);
+	printf("\n");
+}
+
+static void do_which_cpus(int argc, char **argv, cpu_set_t *cpus)
+{
+	struct riscv_hwprobe *pairs;
+	int nr_pairs = argc - 1;
+	char *start, *end;
+	int rc;
+
+	pairs = malloc(nr_pairs * sizeof(struct riscv_hwprobe));
+	assert(pairs);
+
+	for (int i = 0; i < nr_pairs; i++) {
+		start = argv[i + 1];
+		pairs[i].key = strtol(start, &end, 0);
+		assert(end != start && *end == '=');
+		start = end + 1;
+		pairs[i].value = strtoul(start, &end, 0);
+		assert(end != start && *end == '\0');
+	}
+
+	rc = riscv_hwprobe(pairs, nr_pairs, sizeof(cpu_set_t), (unsigned long *)cpus, RISCV_HWPROBE_WHICH_CPUS);
+	assert(rc == 0);
+	print_cpulist(cpus);
+	free(pairs);
+}
+
+int main(int argc, char **argv)
+{
+	struct riscv_hwprobe pairs[2];
+	cpu_set_t cpus_aff, cpus;
+	__u64 ext0_all;
+	long rc;
+
+	rc = sched_getaffinity(0, sizeof(cpu_set_t), &cpus_aff);
+	assert(rc == 0);
+
+	if (argc > 1) {
+		if (!strcmp(argv[1], "-h"))
+			help();
+		else
+			do_which_cpus(argc, argv, &cpus_aff);
+		return 0;
+	}
+
+	ksft_print_header();
+	ksft_set_plan(7);
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, };
+	rc = riscv_hwprobe(pairs, 1, 0, NULL, 0);
+	assert(rc == 0 && pairs[0].key == RISCV_HWPROBE_KEY_BASE_BEHAVIOR &&
+	       pairs[0].value == RISCV_HWPROBE_BASE_BEHAVIOR_IMA);
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_IMA_EXT_0, };
+	rc = riscv_hwprobe(pairs, 1, 0, NULL, 0);
+	assert(rc == 0 && pairs[0].key == RISCV_HWPROBE_KEY_IMA_EXT_0);
+	ext0_all = pairs[0].value;
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	CPU_ZERO(&cpus);
+	rc = riscv_hwprobe(pairs, 1, 0, (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == -EINVAL, "no cpusetsize\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	rc = riscv_hwprobe(pairs, 1, sizeof(cpu_set_t), NULL, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == -EINVAL, "NULL cpus\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = 0xbadc0de, };
+	CPU_ZERO(&cpus);
+	rc = riscv_hwprobe(pairs, 1, sizeof(cpu_set_t), (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == 0 && CPU_COUNT(&cpus) == 0, "unknown key\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	pairs[1] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	CPU_ZERO(&cpus);
+	rc = riscv_hwprobe(pairs, 2, sizeof(cpu_set_t), (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == 0, "duplicate keys\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	pairs[1] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_IMA_EXT_0, .value = ext0_all, };
+	CPU_ZERO(&cpus);
+	rc = riscv_hwprobe(pairs, 2, sizeof(cpu_set_t), (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == 0 && CPU_COUNT(&cpus) == sysconf(_SC_NPROCESSORS_ONLN), "set all cpus\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	pairs[1] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_IMA_EXT_0, .value = ext0_all, };
+	memcpy(&cpus, &cpus_aff, sizeof(cpu_set_t));
+	rc = riscv_hwprobe(pairs, 2, sizeof(cpu_set_t), (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == 0 && CPU_EQUAL(&cpus, &cpus_aff), "set all affinity cpus\n");
+
+	pairs[0] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_BASE_BEHAVIOR, .value = RISCV_HWPROBE_BASE_BEHAVIOR_IMA, };
+	pairs[1] = (struct riscv_hwprobe){ .key = RISCV_HWPROBE_KEY_IMA_EXT_0, .value = ~ext0_all, };
+	memcpy(&cpus, &cpus_aff, sizeof(cpu_set_t));
+	rc = riscv_hwprobe(pairs, 2, sizeof(cpu_set_t), (unsigned long *)&cpus, RISCV_HWPROBE_WHICH_CPUS);
+	ksft_test_result(rc == 0 && CPU_COUNT(&cpus) == 0, "clear all cpus\n");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/riscv/mm/.gitignore b/tools/testing/selftests/riscv/mm/.gitignore
new file mode 100644
index 000000000000..5c2c57cb950c
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/.gitignore
@@ -0,0 +1,2 @@
+mmap_bottomup
+mmap_default
diff --git a/tools/testing/selftests/riscv/mm/Makefile b/tools/testing/selftests/riscv/mm/Makefile
new file mode 100644
index 000000000000..4664ed79e20b
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 ARM Limited
+# Originally tools/testing/arm64/abi/Makefile
+
+# Additional include paths needed by kselftest.h and local headers
+CFLAGS += -std=gnu99 -I.
+
+TEST_GEN_FILES := mmap_default mmap_bottomup
+
+TEST_PROGS := run_mmap.sh
+
+include ../../lib.mk
+
+$(OUTPUT)/mm: mmap_default.c mmap_bottomup.c mmap_tests.h
+	$(CC) -o$@ $(CFLAGS) $(LDFLAGS) $^
diff --git a/tools/testing/selftests/riscv/mm/mmap_bottomup.c b/tools/testing/selftests/riscv/mm/mmap_bottomup.c
new file mode 100644
index 000000000000..461a65c9be00
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/mmap_bottomup.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <sys/mman.h>
+#include <mmap_test.h>
+
+#include "kselftest_harness.h"
+
+TEST(infinite_rlimit)
+{
+	EXPECT_EQ(BOTTOM_UP, memory_layout());
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/mm/mmap_default.c b/tools/testing/selftests/riscv/mm/mmap_default.c
new file mode 100644
index 000000000000..58db7d172af2
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/mmap_default.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <sys/mman.h>
+#include <mmap_test.h>
+
+#include "kselftest_harness.h"
+
+TEST(default_rlimit)
+{
+	EXPECT_EQ(TOP_DOWN, memory_layout());
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/mm/mmap_test.h b/tools/testing/selftests/riscv/mm/mmap_test.h
new file mode 100644
index 000000000000..266a6becdeba
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/mmap_test.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _TESTCASES_MMAP_TEST_H
+#define _TESTCASES_MMAP_TEST_H
+#include <sys/mman.h>
+#include <sys/resource.h>
+#include <stddef.h>
+#include <strings.h>
+#include "kselftest_harness.h"
+
+#define TOP_DOWN 0
+#define BOTTOM_UP 1
+
+#define PROT (PROT_READ | PROT_WRITE)
+#define FLAGS (MAP_PRIVATE | MAP_ANONYMOUS)
+
+static inline int memory_layout(void)
+{
+	void *value1 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);
+	void *value2 = mmap(NULL, sizeof(int), PROT, FLAGS, 0, 0);
+
+	return value2 > value1;
+}
+#endif /* _TESTCASES_MMAP_TEST_H */
diff --git a/tools/testing/selftests/riscv/mm/run_mmap.sh b/tools/testing/selftests/riscv/mm/run_mmap.sh
new file mode 100755
index 000000000000..ca5ad7c48bad
--- /dev/null
+++ b/tools/testing/selftests/riscv/mm/run_mmap.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+original_stack_limit=$(ulimit -s)
+
+./mmap_default
+
+# Force mmap_bottomup to be ran with bottomup memory due to
+# the unlimited stack
+ulimit -s unlimited
+./mmap_bottomup
+ulimit -s $original_stack_limit
diff --git a/tools/testing/selftests/riscv/sigreturn/.gitignore b/tools/testing/selftests/riscv/sigreturn/.gitignore
new file mode 100644
index 000000000000..35002b8ae780
--- /dev/null
+++ b/tools/testing/selftests/riscv/sigreturn/.gitignore
@@ -0,0 +1 @@
+sigreturn
diff --git a/tools/testing/selftests/riscv/sigreturn/Makefile b/tools/testing/selftests/riscv/sigreturn/Makefile
new file mode 100644
index 000000000000..eb8bac9279a8
--- /dev/null
+++ b/tools/testing/selftests/riscv/sigreturn/Makefile
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 ARM Limited
+# Originally tools/testing/arm64/abi/Makefile
+
+CFLAGS += -I$(top_srcdir)/tools/include
+
+TEST_GEN_PROGS := sigreturn
+
+include ../../lib.mk
+
+$(OUTPUT)/sigreturn: sigreturn.c
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
diff --git a/tools/testing/selftests/riscv/sigreturn/sigreturn.c b/tools/testing/selftests/riscv/sigreturn/sigreturn.c
new file mode 100644
index 000000000000..e10873d95fed
--- /dev/null
+++ b/tools/testing/selftests/riscv/sigreturn/sigreturn.c
@@ -0,0 +1,82 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ucontext.h>
+#include <linux/ptrace.h>
+#include "kselftest_harness.h"
+
+#define RISCV_V_MAGIC		0x53465457
+#define DEFAULT_VALUE		2
+#define SIGNAL_HANDLER_OVERRIDE	3
+
+static void simple_handle(int sig_no, siginfo_t *info, void *vcontext)
+{
+	ucontext_t *context = vcontext;
+
+	context->uc_mcontext.__gregs[REG_PC] = context->uc_mcontext.__gregs[REG_PC] + 4;
+}
+
+static void vector_override(int sig_no, siginfo_t *info, void *vcontext)
+{
+	ucontext_t *context = vcontext;
+
+	// vector state
+	struct __riscv_extra_ext_header *ext;
+	struct __riscv_v_ext_state *v_ext_state;
+
+	/* Find the vector context. */
+	ext = (void *)(&context->uc_mcontext.__fpregs);
+	if (ext->hdr.magic != RISCV_V_MAGIC) {
+		fprintf(stderr, "bad vector magic: %x\n", ext->hdr.magic);
+		abort();
+	}
+
+	v_ext_state = (void *)((char *)(ext) + sizeof(*ext));
+
+	*(int *)v_ext_state->datap = SIGNAL_HANDLER_OVERRIDE;
+
+	context->uc_mcontext.__gregs[REG_PC] = context->uc_mcontext.__gregs[REG_PC] + 4;
+}
+
+static int vector_sigreturn(int data, void (*handler)(int, siginfo_t *, void *))
+{
+	int after_sigreturn;
+	struct sigaction sig_action = {
+		.sa_sigaction = handler,
+		.sa_flags = SA_SIGINFO
+	};
+
+	sigaction(SIGSEGV, &sig_action, 0);
+
+	asm(".option push				\n\
+		.option		arch, +v		\n\
+		vsetivli	x0, 1, e32, m1, ta, ma	\n\
+		vmv.s.x		v0, %1			\n\
+		# Generate SIGSEGV			\n\
+		lw		a0, 0(x0)		\n\
+		vmv.x.s		%0, v0			\n\
+		.option pop" : "=r" (after_sigreturn) : "r" (data));
+
+	return after_sigreturn;
+}
+
+TEST(vector_restore)
+{
+	int result;
+
+	result = vector_sigreturn(DEFAULT_VALUE, &simple_handle);
+
+	EXPECT_EQ(DEFAULT_VALUE, result);
+}
+
+TEST(vector_restore_signal_handler_override)
+{
+	int result;
+
+	result = vector_sigreturn(DEFAULT_VALUE, &vector_override);
+
+	EXPECT_EQ(SIGNAL_HANDLER_OVERRIDE, result);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/vector/.gitignore b/tools/testing/selftests/riscv/vector/.gitignore
new file mode 100644
index 000000000000..7d9c87cd0649
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/.gitignore
@@ -0,0 +1,4 @@
+vstate_exec_nolibc
+vstate_prctl
+v_initval
+v_exec_initval_nolibc
diff --git a/tools/testing/selftests/riscv/vector/Makefile b/tools/testing/selftests/riscv/vector/Makefile
new file mode 100644
index 000000000000..2c2a33fc083e
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/Makefile
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2021 ARM Limited
+# Originally tools/testing/arm64/abi/Makefile
+
+TEST_GEN_PROGS := v_initval vstate_prctl vstate_ptrace
+TEST_GEN_PROGS_EXTENDED := vstate_exec_nolibc v_exec_initval_nolibc
+
+include ../../lib.mk
+
+$(OUTPUT)/sys_hwprobe.o: ../hwprobe/sys_hwprobe.S
+	$(CC) -static -c -o$@ $(CFLAGS) $^
+
+$(OUTPUT)/v_helpers.o: v_helpers.c
+	$(CC) -static -c -o$@ $(CFLAGS) $^
+
+$(OUTPUT)/vstate_prctl: vstate_prctl.c $(OUTPUT)/sys_hwprobe.o $(OUTPUT)/v_helpers.o
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
+
+$(OUTPUT)/vstate_exec_nolibc: vstate_exec_nolibc.c
+	$(CC) -nostdlib -static -include ../../../../include/nolibc/nolibc.h \
+		-Wall $(CFLAGS) $(LDFLAGS) $^ -o $@ -lgcc
+
+$(OUTPUT)/v_initval: v_initval.c $(OUTPUT)/sys_hwprobe.o $(OUTPUT)/v_helpers.o
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
+
+$(OUTPUT)/v_exec_initval_nolibc: v_exec_initval_nolibc.c
+	$(CC) -nostdlib -static -include ../../../../include/nolibc/nolibc.h \
+		-Wall $(CFLAGS) $(LDFLAGS) $^ -o $@ -lgcc
+
+$(OUTPUT)/vstate_ptrace: vstate_ptrace.c $(OUTPUT)/sys_hwprobe.o $(OUTPUT)/v_helpers.o
+	$(CC) -static -o$@ $(CFLAGS) $(LDFLAGS) $^
diff --git a/tools/testing/selftests/riscv/vector/v_exec_initval_nolibc.c b/tools/testing/selftests/riscv/vector/v_exec_initval_nolibc.c
new file mode 100644
index 000000000000..4dde05e45a04
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/v_exec_initval_nolibc.c
@@ -0,0 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Get values of vector registers as soon as the program starts to test if
+ * is properly cleaning the values before starting a new program. Vector
+ * registers are caller saved, so no function calls may happen before reading
+ * the values. To further ensure consistency, this file is compiled without
+ * libc and without auto-vectorization.
+ *
+ * To be "clean" all values must be all zeroes.
+ */
+
+#define __stringify_1(x...)	#x
+#define __stringify(x...)	__stringify_1(x)
+
+int main(int argc, char **argv)
+{
+	char value = 0;
+	unsigned long vl;
+
+	if (argc > 2 && strcmp(argv[2], "x"))
+		asm volatile (
+			// 0 | zimm[10:0] | rs1 | 1 1 1 | rd |1010111| vsetvli
+			// vsetvli	t4, x0, e8, m1, d1
+			".4byte		0b00000000000000000111111011010111\n\t"
+			"mv		%[vl], t4\n\t"
+			: [vl] "=r" (vl) : : "t4"
+		);
+	else
+		asm volatile (
+			".option push\n\t"
+			".option arch, +v\n\t"
+			"vsetvli	%[vl], x0, e8, m1, ta, ma\n\t"
+			".option pop\n\t"
+			: [vl] "=r" (vl)
+		);
+
+#define CHECK_VECTOR_REGISTER(register) ({					\
+	for (int i = 0; i < vl; i++) {						\
+		asm volatile (							\
+			".option push\n\t"					\
+			".option arch, +v\n\t"					\
+			"vmv.x.s %0, " __stringify(register) "\n\t"		\
+			"vsrl.vi " __stringify(register) ", " __stringify(register) ", 8\n\t" \
+			".option pop\n\t"					\
+			: "=r" (value));					\
+		if (value != 0x00) {						\
+			printf("Register " __stringify(register)		\
+				" values not clean! value: %u\n", value);	\
+			exit(-1);						\
+		}								\
+	}									\
+})
+
+	CHECK_VECTOR_REGISTER(v0);
+	CHECK_VECTOR_REGISTER(v1);
+	CHECK_VECTOR_REGISTER(v2);
+	CHECK_VECTOR_REGISTER(v3);
+	CHECK_VECTOR_REGISTER(v4);
+	CHECK_VECTOR_REGISTER(v5);
+	CHECK_VECTOR_REGISTER(v6);
+	CHECK_VECTOR_REGISTER(v7);
+	CHECK_VECTOR_REGISTER(v8);
+	CHECK_VECTOR_REGISTER(v9);
+	CHECK_VECTOR_REGISTER(v10);
+	CHECK_VECTOR_REGISTER(v11);
+	CHECK_VECTOR_REGISTER(v12);
+	CHECK_VECTOR_REGISTER(v13);
+	CHECK_VECTOR_REGISTER(v14);
+	CHECK_VECTOR_REGISTER(v15);
+	CHECK_VECTOR_REGISTER(v16);
+	CHECK_VECTOR_REGISTER(v17);
+	CHECK_VECTOR_REGISTER(v18);
+	CHECK_VECTOR_REGISTER(v19);
+	CHECK_VECTOR_REGISTER(v20);
+	CHECK_VECTOR_REGISTER(v21);
+	CHECK_VECTOR_REGISTER(v22);
+	CHECK_VECTOR_REGISTER(v23);
+	CHECK_VECTOR_REGISTER(v24);
+	CHECK_VECTOR_REGISTER(v25);
+	CHECK_VECTOR_REGISTER(v26);
+	CHECK_VECTOR_REGISTER(v27);
+	CHECK_VECTOR_REGISTER(v28);
+	CHECK_VECTOR_REGISTER(v29);
+	CHECK_VECTOR_REGISTER(v30);
+	CHECK_VECTOR_REGISTER(v31);
+
+#undef CHECK_VECTOR_REGISTER
+
+	return 0;
+}
diff --git a/tools/testing/selftests/riscv/vector/v_helpers.c b/tools/testing/selftests/riscv/vector/v_helpers.c
new file mode 100644
index 000000000000..01a8799dcb78
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/v_helpers.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "../hwprobe/hwprobe.h"
+#include <asm/vendor/thead.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+bool is_xtheadvector_supported(void)
+{
+	struct riscv_hwprobe pair;
+
+	pair.key = RISCV_HWPROBE_KEY_VENDOR_EXT_THEAD_0;
+	riscv_hwprobe(&pair, 1, 0, NULL, 0);
+	return pair.value & RISCV_HWPROBE_VENDOR_EXT_XTHEADVECTOR;
+}
+
+bool is_vector_supported(void)
+{
+	struct riscv_hwprobe pair;
+
+	pair.key = RISCV_HWPROBE_KEY_IMA_EXT_0;
+	riscv_hwprobe(&pair, 1, 0, NULL, 0);
+	return pair.value & RISCV_HWPROBE_EXT_ZVE32X;
+}
+
+int launch_test(char *next_program, int test_inherit, int xtheadvector)
+{
+	char *exec_argv[4], *exec_envp[1];
+	int rc, pid, status;
+
+	pid = fork();
+	if (pid < 0) {
+		printf("fork failed %d", pid);
+		return -1;
+	}
+
+	if (!pid) {
+		exec_argv[0] = next_program;
+		exec_argv[1] = test_inherit != 0 ? "x" : NULL;
+		exec_argv[2] = xtheadvector != 0 ? "x" : NULL;
+		exec_argv[3] = NULL;
+		exec_envp[0] = NULL;
+		/* launch the program again to check inherit */
+		rc = execve(next_program, exec_argv, exec_envp);
+		if (rc) {
+			perror("execve");
+			printf("child execve failed %d\n", rc);
+			exit(-1);
+		}
+	}
+
+	rc = waitpid(-1, &status, 0);
+	if (rc < 0) {
+		printf("waitpid failed\n");
+		return -3;
+	}
+
+	if ((WIFEXITED(status) && WEXITSTATUS(status) == -1) ||
+	    WIFSIGNALED(status)) {
+		printf("child exited abnormally\n");
+		return -4;
+	}
+
+	return WEXITSTATUS(status);
+}
diff --git a/tools/testing/selftests/riscv/vector/v_helpers.h b/tools/testing/selftests/riscv/vector/v_helpers.h
new file mode 100644
index 000000000000..763cddfe26da
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/v_helpers.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include <stdbool.h>
+
+bool is_xtheadvector_supported(void);
+
+bool is_vector_supported(void);
+
+int launch_test(char *next_program, int test_inherit, int xtheadvector);
diff --git a/tools/testing/selftests/riscv/vector/v_initval.c b/tools/testing/selftests/riscv/vector/v_initval.c
new file mode 100644
index 000000000000..5fd2382e15a2
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/v_initval.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include "kselftest_harness.h"
+#include "v_helpers.h"
+
+#define NEXT_PROGRAM "./v_exec_initval_nolibc"
+
+TEST(v_initval)
+{
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	ASSERT_EQ(0, launch_test(NEXT_PROGRAM, 0, xtheadvector));
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
new file mode 100644
index 000000000000..7b7d6f21acb4
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/vstate_exec_nolibc.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0-only
+
+#include <linux/wait.h>
+
+#define THIS_PROGRAM "./vstate_exec_nolibc"
+
+int main(int argc, char **argv)
+{
+	int rc, pid, status, test_inherit = 0, xtheadvector = 0;
+	long ctrl, ctrl_c;
+	char *exec_argv[2], *exec_envp[2];
+
+	if (argc > 1 && strcmp(argv[1], "x"))
+		test_inherit = 1;
+
+	if (argc > 2 && strcmp(argv[2], "x"))
+		xtheadvector = 1;
+
+	ctrl = my_syscall1(__NR_prctl, PR_RISCV_V_GET_CONTROL);
+	if (ctrl < 0) {
+		puts("PR_RISCV_V_GET_CONTROL is not supported\n");
+		return ctrl;
+	}
+
+	if (test_inherit) {
+		pid = fork();
+		if (pid == -1) {
+			puts("fork failed\n");
+			exit(-1);
+		}
+
+		/* child  */
+		if (!pid) {
+			exec_argv[0] = THIS_PROGRAM;
+			exec_argv[1] = NULL;
+			exec_envp[0] = NULL;
+			exec_envp[1] = NULL;
+			/* launch the program again to check inherit */
+			rc = execve(THIS_PROGRAM, exec_argv, exec_envp);
+			if (rc) {
+				puts("child execve failed\n");
+				exit(-1);
+			}
+		}
+
+	} else {
+		pid = fork();
+		if (pid == -1) {
+			puts("fork failed\n");
+			exit(-1);
+		}
+
+		if (!pid) {
+			rc = my_syscall1(__NR_prctl, PR_RISCV_V_GET_CONTROL);
+			if (rc != ctrl) {
+				puts("child's vstate_ctrl not equal to parent's\n");
+				exit(-1);
+			}
+			if (xtheadvector)
+				asm volatile (".4byte	0x00007ed7");
+			else
+				asm volatile (".option push\n\t"
+					".option arch, +v\n\t"
+					"vsetvli x0, x0, e32, m8, ta, ma\n\t"
+					".option pop\n\t"
+					);
+			exit(ctrl);
+		}
+	}
+
+	rc = waitpid(-1, &status, 0);
+
+	if (WIFEXITED(status) && WEXITSTATUS(status) == -1) {
+		puts("child exited abnormally\n");
+		exit(-1);
+	}
+
+	if (WIFSIGNALED(status)) {
+		if (WTERMSIG(status) != SIGILL) {
+			puts("child was terminated by unexpected signal\n");
+			exit(-1);
+		}
+
+		if ((ctrl & PR_RISCV_V_VSTATE_CTRL_CUR_MASK) != PR_RISCV_V_VSTATE_CTRL_OFF) {
+			puts("child signaled by illegal V access but vstate_ctrl is not off\n");
+			exit(-1);
+		}
+
+		/* child terminated, and its vstate_ctrl is off */
+		exit(ctrl);
+	}
+
+	ctrl_c = WEXITSTATUS(status);
+	if (test_inherit) {
+		if (ctrl & PR_RISCV_V_VSTATE_CTRL_INHERIT) {
+			if (!(ctrl_c & PR_RISCV_V_VSTATE_CTRL_INHERIT)) {
+				puts("parent has inherit bit, but child has not\n");
+				exit(-1);
+			}
+		}
+		rc = (ctrl & PR_RISCV_V_VSTATE_CTRL_NEXT_MASK) >> 2;
+		if (rc != PR_RISCV_V_VSTATE_CTRL_DEFAULT) {
+			if (rc != (ctrl_c & PR_RISCV_V_VSTATE_CTRL_CUR_MASK)) {
+				puts("parent's next setting does not equal to child's\n");
+				exit(-1);
+			}
+
+			if (!(ctrl & PR_RISCV_V_VSTATE_CTRL_INHERIT)) {
+				if ((ctrl_c & PR_RISCV_V_VSTATE_CTRL_NEXT_MASK) !=
+				    PR_RISCV_V_VSTATE_CTRL_DEFAULT) {
+					puts("must clear child's next vstate_ctrl if !inherit\n");
+					exit(-1);
+				}
+			}
+		}
+	}
+	return ctrl;
+}
diff --git a/tools/testing/selftests/riscv/vector/vstate_prctl.c b/tools/testing/selftests/riscv/vector/vstate_prctl.c
new file mode 100644
index 000000000000..d607af3900c1
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/vstate_prctl.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <stdlib.h>
+
+#include "kselftest_harness.h"
+#include "v_helpers.h"
+
+#define NEXT_PROGRAM "./vstate_exec_nolibc"
+
+int test_and_compare_child(long provided, long expected, int inherit, int xtheadvector)
+{
+	int rc;
+
+	rc = prctl(PR_RISCV_V_SET_CONTROL, provided);
+	if (rc != 0) {
+		printf("prctl with provided arg %lx failed with code %d\n",
+		       provided, rc);
+		return -1;
+	}
+	rc = launch_test(NEXT_PROGRAM, inherit, xtheadvector);
+	if (rc != expected) {
+		printf("Test failed, check %d != %ld\n", rc, expected);
+		return -2;
+	}
+	return 0;
+}
+
+#define PR_RISCV_V_VSTATE_CTRL_CUR_SHIFT 0
+#define PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT 2
+
+TEST(get_control_no_v)
+{
+	long rc;
+
+	if (is_vector_supported() || is_xtheadvector_supported())
+		SKIP(return, "Test expects vector to be not supported");
+
+	rc = prctl(PR_RISCV_V_GET_CONTROL);
+	EXPECT_EQ(-1, rc)
+	TH_LOG("GET_CONTROL should fail on kernel/hw without ZVE32X");
+	EXPECT_EQ(EINVAL, errno)
+	TH_LOG("GET_CONTROL should fail on kernel/hw without ZVE32X");
+}
+
+TEST(set_control_no_v)
+{
+	long rc;
+
+	if (is_vector_supported() || is_xtheadvector_supported())
+		SKIP(return, "Test expects vector to be not supported");
+
+	rc = prctl(PR_RISCV_V_SET_CONTROL, PR_RISCV_V_VSTATE_CTRL_ON);
+	EXPECT_EQ(-1, rc)
+	TH_LOG("SET_CONTROL should fail on kernel/hw without ZVE32X");
+	EXPECT_EQ(EINVAL, errno)
+	TH_LOG("SET_CONTROL should fail on kernel/hw without ZVE32X");
+}
+
+TEST(vstate_on_current)
+{
+	long flag;
+	long rc;
+
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		SKIP(return, "Vector not supported");
+
+	flag = PR_RISCV_V_VSTATE_CTRL_ON;
+	rc = prctl(PR_RISCV_V_SET_CONTROL, flag);
+	EXPECT_EQ(0, rc) TH_LOG("Enabling V for current should always succeed");
+}
+
+TEST(vstate_off_eperm)
+{
+	long flag;
+	long rc;
+
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		SKIP(return, "Vector not supported");
+
+	flag = PR_RISCV_V_VSTATE_CTRL_OFF;
+	rc = prctl(PR_RISCV_V_SET_CONTROL, flag);
+	EXPECT_EQ(EPERM, errno)
+	TH_LOG("Disabling V in current thread with V enabled must fail with EPERM(%d)", errno);
+	EXPECT_EQ(-1, rc)
+	TH_LOG("Disabling V in current thread with V enabled must fail with EPERM(%d)", errno);
+}
+
+TEST(vstate_on_no_nesting)
+{
+	long flag;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	/* Turn on next's vector explicitly and test */
+	flag = PR_RISCV_V_VSTATE_CTRL_ON << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, PR_RISCV_V_VSTATE_CTRL_ON, 0, xtheadvector));
+}
+
+TEST(vstate_off_nesting)
+{
+	long flag;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	/* Turn off next's vector explicitly and test */
+	flag = PR_RISCV_V_VSTATE_CTRL_OFF << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, PR_RISCV_V_VSTATE_CTRL_OFF, 1, xtheadvector));
+}
+
+TEST(vstate_on_inherit_no_nesting)
+{
+	long flag, expected;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	/* Turn on next's vector explicitly and test no inherit */
+	flag = PR_RISCV_V_VSTATE_CTRL_ON << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+	flag |= PR_RISCV_V_VSTATE_CTRL_INHERIT;
+	expected = flag | PR_RISCV_V_VSTATE_CTRL_ON;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, expected, 0, xtheadvector));
+}
+
+TEST(vstate_on_inherit)
+{
+	long flag, expected;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	/* Turn on next's vector explicitly and test inherit */
+	flag = PR_RISCV_V_VSTATE_CTRL_ON << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+	flag |= PR_RISCV_V_VSTATE_CTRL_INHERIT;
+	expected = flag | PR_RISCV_V_VSTATE_CTRL_ON;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, expected, 1, xtheadvector));
+}
+
+TEST(vstate_off_inherit_no_nesting)
+{
+	long flag, expected;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+	/* Turn off next's vector explicitly and test no inherit */
+	flag = PR_RISCV_V_VSTATE_CTRL_OFF << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+	flag |= PR_RISCV_V_VSTATE_CTRL_INHERIT;
+	expected = flag | PR_RISCV_V_VSTATE_CTRL_OFF;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, expected, 0, xtheadvector));
+}
+
+TEST(vstate_off_inherit)
+{
+	long flag, expected;
+	int xtheadvector = 0;
+
+	if (!is_vector_supported()) {
+		if (is_xtheadvector_supported())
+			xtheadvector = 1;
+		else
+			SKIP(return, "Vector not supported");
+	}
+
+	/* Turn off next's vector explicitly and test inherit */
+	flag = PR_RISCV_V_VSTATE_CTRL_OFF << PR_RISCV_V_VSTATE_CTRL_NEXT_SHIFT;
+	flag |= PR_RISCV_V_VSTATE_CTRL_INHERIT;
+	expected = flag | PR_RISCV_V_VSTATE_CTRL_OFF;
+
+	EXPECT_EQ(0, test_and_compare_child(flag, expected, 1, xtheadvector));
+}
+
+/* arguments should fail with EINVAL */
+TEST(inval_set_control_1)
+{
+	int rc;
+
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		SKIP(return, "Vector not supported");
+
+	rc = prctl(PR_RISCV_V_SET_CONTROL, 0xff0);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+}
+
+/* arguments should fail with EINVAL */
+TEST(inval_set_control_2)
+{
+	int rc;
+
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		SKIP(return, "Vector not supported");
+
+	rc = prctl(PR_RISCV_V_SET_CONTROL, 0x3);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+}
+
+/* arguments should fail with EINVAL */
+TEST(inval_set_control_3)
+{
+	int rc;
+
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		SKIP(return, "Vector not supported");
+
+	rc = prctl(PR_RISCV_V_SET_CONTROL, 0xc);
+	EXPECT_EQ(-1, rc);
+	EXPECT_EQ(EINVAL, errno);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/riscv/vector/vstate_ptrace.c b/tools/testing/selftests/riscv/vector/vstate_ptrace.c
new file mode 100644
index 000000000000..1479abc0c9cb
--- /dev/null
+++ b/tools/testing/selftests/riscv/vector/vstate_ptrace.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <stdio.h>
+#include <stdlib.h>
+#include <asm/ptrace.h>
+#include <linux/elf.h>
+#include <sys/ptrace.h>
+#include <sys/uio.h>
+#include <sys/wait.h>
+#include "../../kselftest.h"
+#include "v_helpers.h"
+
+int parent_set_val, child_set_val;
+
+static long do_ptrace(enum __ptrace_request op, pid_t pid, long type, size_t size, void *data)
+{
+	struct iovec v_iovec = {
+		.iov_len = size,
+		.iov_base = data
+	};
+
+	return ptrace(op, pid, type, &v_iovec);
+}
+
+static int do_child(void)
+{
+	int out;
+
+	if (ptrace(PTRACE_TRACEME, -1, NULL, NULL)) {
+		ksft_perror("PTRACE_TRACEME failed\n");
+		return EXIT_FAILURE;
+	}
+
+	asm volatile (".option push\n\t"
+		".option	arch, +v\n\t"
+		".option	norvc\n\t"
+		"vsetivli	x0, 1, e32, m1, ta, ma\n\t"
+		"vmv.s.x	v31, %[in]\n\t"
+		"ebreak\n\t"
+		"vmv.x.s	%[out], v31\n\t"
+		".option pop\n\t"
+		: [out] "=r" (out)
+		: [in] "r" (child_set_val));
+
+	if (out != parent_set_val)
+		return EXIT_FAILURE;
+
+	return EXIT_SUCCESS;
+}
+
+static void do_parent(pid_t child)
+{
+	int status;
+	void *data = NULL;
+
+	/* Attach to the child */
+	while (waitpid(child, &status, 0)) {
+		if (WIFEXITED(status)) {
+			ksft_test_result(WEXITSTATUS(status) == 0, "SETREGSET vector\n");
+			goto out;
+		} else if (WIFSTOPPED(status) && (WSTOPSIG(status) == SIGTRAP)) {
+			size_t size;
+			void *data, *v31;
+			struct __riscv_v_regset_state *v_regset_hdr;
+			struct user_regs_struct *gpreg;
+
+			size = sizeof(*v_regset_hdr);
+			data = malloc(size);
+			if (!data)
+				goto out;
+			v_regset_hdr = (struct __riscv_v_regset_state *)data;
+
+			if (do_ptrace(PTRACE_GETREGSET, child, NT_RISCV_VECTOR, size, data))
+				goto out;
+
+			ksft_print_msg("vlenb %ld\n", v_regset_hdr->vlenb);
+			data = realloc(data, size + v_regset_hdr->vlenb * 32);
+			if (!data)
+				goto out;
+			v_regset_hdr = (struct __riscv_v_regset_state *)data;
+			v31 = (void *)(data + size + v_regset_hdr->vlenb * 31);
+			size += v_regset_hdr->vlenb * 32;
+
+			if (do_ptrace(PTRACE_GETREGSET, child, NT_RISCV_VECTOR, size, data))
+				goto out;
+
+			ksft_test_result(*(int *)v31 == child_set_val, "GETREGSET vector\n");
+
+			*(int *)v31 = parent_set_val;
+			if (do_ptrace(PTRACE_SETREGSET, child, NT_RISCV_VECTOR, size, data))
+				goto out;
+
+			/* move the pc forward */
+			size = sizeof(*gpreg);
+			data = realloc(data, size);
+			gpreg = (struct user_regs_struct *)data;
+
+			if (do_ptrace(PTRACE_GETREGSET, child, NT_PRSTATUS, size, data))
+				goto out;
+
+			gpreg->pc += 4;
+			if (do_ptrace(PTRACE_SETREGSET, child, NT_PRSTATUS, size, data))
+				goto out;
+		}
+
+		ptrace(PTRACE_CONT, child, NULL, NULL);
+	}
+
+out:
+	free(data);
+}
+
+int main(void)
+{
+	pid_t child;
+
+	ksft_set_plan(2);
+	if (!is_vector_supported() && !is_xtheadvector_supported())
+		ksft_exit_skip("Vector not supported\n");
+
+	srandom(getpid());
+	parent_set_val = rand();
+	child_set_val = rand();
+
+	child = fork();
+	if (child < 0)
+		ksft_exit_fail_msg("Fork failed %d\n", child);
+
+	if (!child)
+		return do_child();
+
+	do_parent(child);
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/rlimits/.gitignore b/tools/testing/selftests/rlimits/.gitignore
new file mode 100644
index 000000000000..091021f255b3
--- /dev/null
+++ b/tools/testing/selftests/rlimits/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+rlimits-per-userns
diff --git a/tools/testing/selftests/rlimits/Makefile b/tools/testing/selftests/rlimits/Makefile
new file mode 100644
index 000000000000..03aadb406212
--- /dev/null
+++ b/tools/testing/selftests/rlimits/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+CFLAGS += -Wall -O2 -g
+TEST_GEN_PROGS := rlimits-per-userns
+
+include ../lib.mk
diff --git a/tools/testing/selftests/rlimits/config b/tools/testing/selftests/rlimits/config
new file mode 100644
index 000000000000..416bd53ce982
--- /dev/null
+++ b/tools/testing/selftests/rlimits/config
@@ -0,0 +1 @@
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/rlimits/rlimits-per-userns.c b/tools/testing/selftests/rlimits/rlimits-per-userns.c
new file mode 100644
index 000000000000..26dc949e93ea
--- /dev/null
+++ b/tools/testing/selftests/rlimits/rlimits-per-userns.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Author: Alexey Gladkov <gladkov.alexey@gmail.com>
+ */
+#define _GNU_SOURCE
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <sys/prctl.h>
+#include <sys/stat.h>
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <sched.h>
+#include <signal.h>
+#include <limits.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <err.h>
+
+#define NR_CHILDS 2
+
+static char *service_prog;
+static uid_t user   = 60000;
+static uid_t group  = 60000;
+
+static void setrlimit_nproc(rlim_t n)
+{
+	pid_t pid = getpid();
+	struct rlimit limit = {
+		.rlim_cur = n,
+		.rlim_max = n
+	};
+
+	warnx("(pid=%d): Setting RLIMIT_NPROC=%ld", pid, n);
+
+	if (setrlimit(RLIMIT_NPROC, &limit) < 0)
+		err(EXIT_FAILURE, "(pid=%d): setrlimit(RLIMIT_NPROC)", pid);
+}
+
+static pid_t fork_child(void)
+{
+	pid_t pid = fork();
+
+	if (pid < 0)
+		err(EXIT_FAILURE, "fork");
+
+	if (pid > 0)
+		return pid;
+
+	pid = getpid();
+
+	warnx("(pid=%d): New process starting ...", pid);
+
+	if (prctl(PR_SET_PDEATHSIG, SIGKILL) < 0)
+		err(EXIT_FAILURE, "(pid=%d): prctl(PR_SET_PDEATHSIG)", pid);
+
+	signal(SIGUSR1, SIG_DFL);
+
+	warnx("(pid=%d): Changing to uid=%d, gid=%d", pid, user, group);
+
+	if (setgid(group) < 0)
+		err(EXIT_FAILURE, "(pid=%d): setgid(%d)", pid, group);
+	if (setuid(user) < 0)
+		err(EXIT_FAILURE, "(pid=%d): setuid(%d)", pid, user);
+
+	warnx("(pid=%d): Service running ...", pid);
+
+	warnx("(pid=%d): Unshare user namespace", pid);
+	if (unshare(CLONE_NEWUSER) < 0)
+		err(EXIT_FAILURE, "unshare(CLONE_NEWUSER)");
+
+	char *const argv[] = { "service", NULL };
+	char *const envp[] = { "I_AM_SERVICE=1", NULL };
+
+	warnx("(pid=%d): Executing real service ...", pid);
+
+	execve(service_prog, argv, envp);
+	err(EXIT_FAILURE, "(pid=%d): execve", pid);
+}
+
+int main(int argc, char **argv)
+{
+	size_t i;
+	pid_t child[NR_CHILDS];
+	int wstatus[NR_CHILDS];
+	int childs = NR_CHILDS;
+	pid_t pid;
+
+	if (getenv("I_AM_SERVICE")) {
+		pause();
+		exit(EXIT_SUCCESS);
+	}
+
+	service_prog = argv[0];
+	pid = getpid();
+
+	warnx("(pid=%d) Starting testcase", pid);
+
+	/*
+	 * This rlimit is not a problem for root because it can be exceeded.
+	 */
+	setrlimit_nproc(1);
+
+	for (i = 0; i < NR_CHILDS; i++) {
+		child[i] = fork_child();
+		wstatus[i] = 0;
+		usleep(250000);
+	}
+
+	while (1) {
+		for (i = 0; i < NR_CHILDS; i++) {
+			if (child[i] <= 0)
+				continue;
+
+			errno = 0;
+			pid_t ret = waitpid(child[i], &wstatus[i], WNOHANG);
+
+			if (!ret || (!WIFEXITED(wstatus[i]) && !WIFSIGNALED(wstatus[i])))
+				continue;
+
+			if (ret < 0 && errno != ECHILD)
+				warn("(pid=%d): waitpid(%d)", pid, child[i]);
+
+			child[i] *= -1;
+			childs -= 1;
+		}
+
+		if (!childs)
+			break;
+
+		usleep(250000);
+
+		for (i = 0; i < NR_CHILDS; i++) {
+			if (child[i] <= 0)
+				continue;
+			kill(child[i], SIGUSR1);
+		}
+	}
+
+	for (i = 0; i < NR_CHILDS; i++) {
+		if (WIFEXITED(wstatus[i]))
+			warnx("(pid=%d): pid %d exited, status=%d",
+				pid, -child[i], WEXITSTATUS(wstatus[i]));
+		else if (WIFSIGNALED(wstatus[i]))
+			warnx("(pid=%d): pid %d killed by signal %d",
+				pid, -child[i], WTERMSIG(wstatus[i]));
+
+		if (WIFSIGNALED(wstatus[i]) && WTERMSIG(wstatus[i]) == SIGUSR1)
+			continue;
+
+		warnx("(pid=%d): Test failed", pid);
+		exit(EXIT_FAILURE);
+	}
+
+	warnx("(pid=%d): Test passed", pid);
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/testing/selftests/rseq/.gitignore b/tools/testing/selftests/rseq/.gitignore
new file mode 100644
index 000000000000..0fda241fa62b
--- /dev/null
+++ b/tools/testing/selftests/rseq/.gitignore
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0-only
+basic_percpu_ops_test
+basic_percpu_ops_mm_cid_test
+basic_test
+basic_rseq_op_test
+param_test
+param_test_benchmark
+param_test_compare_twice
+param_test_mm_cid
+param_test_mm_cid_benchmark
+param_test_mm_cid_compare_twice
+syscall_errors_test
diff --git a/tools/testing/selftests/rseq/Makefile b/tools/testing/selftests/rseq/Makefile
new file mode 100644
index 000000000000..0d0a5fae5954
--- /dev/null
+++ b/tools/testing/selftests/rseq/Makefile
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
+CLANG_FLAGS += -no-integrated-as
+endif
+
+top_srcdir = ../../../..
+
+CFLAGS += -O2 -Wall -g -I./ $(KHDR_INCLUDES) -L$(OUTPUT) -Wl,-rpath=./ \
+	  $(CLANG_FLAGS) -I$(top_srcdir)/tools/include
+LDLIBS += -lpthread -ldl
+
+# Own dependencies because we only want to build against 1st prerequisite, but
+# still track changes to header files and depend on shared object.
+OVERRIDE_TARGETS = 1
+
+TEST_GEN_PROGS = basic_test basic_percpu_ops_test basic_percpu_ops_mm_cid_test param_test \
+		param_test_benchmark param_test_compare_twice param_test_mm_cid \
+		param_test_mm_cid_benchmark param_test_mm_cid_compare_twice \
+		syscall_errors_test
+
+TEST_GEN_PROGS_EXTENDED = librseq.so
+
+TEST_PROGS = run_param_test.sh run_syscall_errors_test.sh
+
+TEST_FILES := settings
+
+include ../lib.mk
+
+$(OUTPUT)/librseq.so: rseq.c rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -shared -fPIC $< $(LDLIBS) -o $@
+
+$(OUTPUT)/%: %.c $(TEST_GEN_PROGS_EXTENDED) rseq.h rseq-*.h
+	$(CC) $(CFLAGS) $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/basic_percpu_ops_mm_cid_test: basic_percpu_ops_test.c $(TEST_GEN_PROGS_EXTENDED) rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DBUILDOPT_RSEQ_PERCPU_MM_CID $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/param_test_benchmark: param_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DBENCHMARK $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/param_test_compare_twice: param_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DRSEQ_COMPARE_TWICE $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/param_test_mm_cid: param_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DBUILDOPT_RSEQ_PERCPU_MM_CID $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/param_test_mm_cid_benchmark: param_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DBUILDOPT_RSEQ_PERCPU_MM_CID -DBENCHMARK $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/param_test_mm_cid_compare_twice: param_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) -DBUILDOPT_RSEQ_PERCPU_MM_CID -DRSEQ_COMPARE_TWICE $< $(LDLIBS) -lrseq -o $@
+
+$(OUTPUT)/syscall_errors_test: syscall_errors_test.c $(TEST_GEN_PROGS_EXTENDED) \
+					rseq.h rseq-*.h
+	$(CC) $(CFLAGS) $< $(LDLIBS) -lrseq -o $@
diff --git a/tools/testing/selftests/rseq/basic_percpu_ops_test.c b/tools/testing/selftests/rseq/basic_percpu_ops_test.c
new file mode 100644
index 000000000000..1193612bf327
--- /dev/null
+++ b/tools/testing/selftests/rseq/basic_percpu_ops_test.c
@@ -0,0 +1,353 @@
+// SPDX-License-Identifier: LGPL-2.1
+#define _GNU_SOURCE
+#include <assert.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h>
+
+#include "kselftest.h"
+#include "rseq.h"
+
+#ifdef BUILDOPT_RSEQ_PERCPU_MM_CID
+# define RSEQ_PERCPU	RSEQ_PERCPU_MM_CID
+static
+int get_current_cpu_id(void)
+{
+	return rseq_current_mm_cid();
+}
+static
+bool rseq_validate_cpu_id(void)
+{
+	return rseq_mm_cid_available();
+}
+static
+bool rseq_use_cpu_index(void)
+{
+	return false;	/* Use mm_cid */
+}
+#else
+# define RSEQ_PERCPU	RSEQ_PERCPU_CPU_ID
+static
+int get_current_cpu_id(void)
+{
+	return rseq_cpu_start();
+}
+static
+bool rseq_validate_cpu_id(void)
+{
+	return rseq_current_cpu_raw() >= 0;
+}
+static
+bool rseq_use_cpu_index(void)
+{
+	return true;	/* Use cpu_id as index. */
+}
+#endif
+
+struct percpu_lock_entry {
+	intptr_t v;
+} __attribute__((aligned(128)));
+
+struct percpu_lock {
+	struct percpu_lock_entry c[CPU_SETSIZE];
+};
+
+struct test_data_entry {
+	intptr_t count;
+} __attribute__((aligned(128)));
+
+struct spinlock_test_data {
+	struct percpu_lock lock;
+	struct test_data_entry c[CPU_SETSIZE];
+	int reps;
+};
+
+struct percpu_list_node {
+	intptr_t data;
+	struct percpu_list_node *next;
+};
+
+struct percpu_list_entry {
+	struct percpu_list_node *head;
+} __attribute__((aligned(128)));
+
+struct percpu_list {
+	struct percpu_list_entry c[CPU_SETSIZE];
+};
+
+/* A simple percpu spinlock.  Returns the cpu lock was acquired on. */
+int rseq_this_cpu_lock(struct percpu_lock *lock)
+{
+	int cpu;
+
+	for (;;) {
+		int ret;
+
+		cpu = get_current_cpu_id();
+		ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+					 &lock->c[cpu].v, 0, 1, cpu);
+		if (rseq_likely(!ret))
+			break;
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	/*
+	 * Acquire semantic when taking lock after control dependency.
+	 * Matches rseq_smp_store_release().
+	 */
+	rseq_smp_acquire__after_ctrl_dep();
+	return cpu;
+}
+
+void rseq_percpu_unlock(struct percpu_lock *lock, int cpu)
+{
+	assert(lock->c[cpu].v == 1);
+	/*
+	 * Release lock, with release semantic. Matches
+	 * rseq_smp_acquire__after_ctrl_dep().
+	 */
+	rseq_smp_store_release(&lock->c[cpu].v, 0);
+}
+
+void *test_percpu_spinlock_thread(void *arg)
+{
+	struct spinlock_test_data *data = arg;
+	int i, cpu;
+
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+	for (i = 0; i < data->reps; i++) {
+		cpu = rseq_this_cpu_lock(&data->lock);
+		data->c[cpu].count++;
+		rseq_percpu_unlock(&data->lock, cpu);
+	}
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+
+	return NULL;
+}
+
+/*
+ * A simple test which implements a sharded counter using a per-cpu
+ * lock.  Obviously real applications might prefer to simply use a
+ * per-cpu increment; however, this is reasonable for a test and the
+ * lock can be extended to synchronize more complicated operations.
+ */
+void test_percpu_spinlock(void)
+{
+	const int num_threads = 200;
+	int i;
+	uint64_t sum;
+	pthread_t test_threads[num_threads];
+	struct spinlock_test_data data;
+
+	memset(&data, 0, sizeof(data));
+	data.reps = 5000;
+
+	for (i = 0; i < num_threads; i++)
+		pthread_create(&test_threads[i], NULL,
+			       test_percpu_spinlock_thread, &data);
+
+	for (i = 0; i < num_threads; i++)
+		pthread_join(test_threads[i], NULL);
+
+	sum = 0;
+	for (i = 0; i < CPU_SETSIZE; i++)
+		sum += data.c[i].count;
+
+	assert(sum == (uint64_t)data.reps * num_threads);
+}
+
+void this_cpu_list_push(struct percpu_list *list,
+			struct percpu_list_node *node,
+			int *_cpu)
+{
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr, newval, expect;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		/* Load list->c[cpu].head with single-copy atomicity. */
+		expect = (intptr_t)RSEQ_READ_ONCE(list->c[cpu].head);
+		newval = (intptr_t)node;
+		targetptr = (intptr_t *)&list->c[cpu].head;
+		node->next = (struct percpu_list_node *)expect;
+		ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+					 targetptr, expect, newval, cpu);
+		if (rseq_likely(!ret))
+			break;
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+}
+
+/*
+ * Unlike a traditional lock-less linked list; the availability of a
+ * rseq primitive allows us to implement pop without concerns over
+ * ABA-type races.
+ */
+struct percpu_list_node *this_cpu_list_pop(struct percpu_list *list,
+					   int *_cpu)
+{
+	for (;;) {
+		struct percpu_list_node *head;
+		intptr_t *targetptr, expectnot, *load;
+		long offset;
+		int ret, cpu;
+
+		cpu = get_current_cpu_id();
+		targetptr = (intptr_t *)&list->c[cpu].head;
+		expectnot = (intptr_t)NULL;
+		offset = offsetof(struct percpu_list_node, next);
+		load = (intptr_t *)&head;
+		ret = rseq_cmpnev_storeoffp_load(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+						 targetptr, expectnot,
+						 offset, load, cpu);
+		if (rseq_likely(!ret)) {
+			if (_cpu)
+				*_cpu = cpu;
+			return head;
+		}
+		if (ret > 0)
+			return NULL;
+		/* Retry if rseq aborts. */
+	}
+}
+
+/*
+ * __percpu_list_pop is not safe against concurrent accesses. Should
+ * only be used on lists that are not concurrently modified.
+ */
+struct percpu_list_node *__percpu_list_pop(struct percpu_list *list, int cpu)
+{
+	struct percpu_list_node *node;
+
+	node = list->c[cpu].head;
+	if (!node)
+		return NULL;
+	list->c[cpu].head = node->next;
+	return node;
+}
+
+void *test_percpu_list_thread(void *arg)
+{
+	int i;
+	struct percpu_list *list = (struct percpu_list *)arg;
+
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+
+	for (i = 0; i < 100000; i++) {
+		struct percpu_list_node *node;
+
+		node = this_cpu_list_pop(list, NULL);
+		sched_yield();  /* encourage shuffling */
+		if (node)
+			this_cpu_list_push(list, node, NULL);
+	}
+
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+
+	return NULL;
+}
+
+/* Simultaneous modification to a per-cpu linked list from many threads.  */
+void test_percpu_list(void)
+{
+	int i, j;
+	uint64_t sum = 0, expected_sum = 0;
+	struct percpu_list list;
+	pthread_t test_threads[200];
+	cpu_set_t allowed_cpus;
+
+	memset(&list, 0, sizeof(list));
+
+	/* Generate list entries for every usable cpu. */
+	sched_getaffinity(0, sizeof(allowed_cpus), &allowed_cpus);
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+		for (j = 1; j <= 100; j++) {
+			struct percpu_list_node *node;
+
+			expected_sum += j;
+
+			node = malloc(sizeof(*node));
+			assert(node);
+			node->data = j;
+			node->next = list.c[i].head;
+			list.c[i].head = node;
+		}
+	}
+
+	for (i = 0; i < 200; i++)
+		pthread_create(&test_threads[i], NULL,
+		       test_percpu_list_thread, &list);
+
+	for (i = 0; i < 200; i++)
+		pthread_join(test_threads[i], NULL);
+
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		struct percpu_list_node *node;
+
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+
+		while ((node = __percpu_list_pop(&list, i))) {
+			sum += node->data;
+			free(node);
+		}
+	}
+
+	/*
+	 * All entries should now be accounted for (unless some external
+	 * actor is interfering with our allowed affinity while this
+	 * test is running).
+	 */
+	assert(sum == expected_sum);
+}
+
+int main(int argc, char **argv)
+{
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		goto error;
+	}
+	if (!rseq_validate_cpu_id()) {
+		fprintf(stderr, "Error: cpu id getter unavailable\n");
+		goto error;
+	}
+	printf("spinlock\n");
+	test_percpu_spinlock();
+	printf("percpu_list\n");
+	test_percpu_list();
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		goto error;
+	}
+	return 0;
+
+error:
+	return -1;
+}
diff --git a/tools/testing/selftests/rseq/basic_test.c b/tools/testing/selftests/rseq/basic_test.c
new file mode 100644
index 000000000000..295eea16466f
--- /dev/null
+++ b/tools/testing/selftests/rseq/basic_test.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * Basic test coverage for critical regions and rseq_current_cpu().
+ */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <sched.h>
+#include <signal.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/time.h>
+
+#include "rseq.h"
+
+void test_cpu_pointer(void)
+{
+	cpu_set_t affinity, test_affinity;
+	int i;
+
+	sched_getaffinity(0, sizeof(affinity), &affinity);
+	CPU_ZERO(&test_affinity);
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		if (CPU_ISSET(i, &affinity)) {
+			int node;
+
+			CPU_SET(i, &test_affinity);
+			sched_setaffinity(0, sizeof(test_affinity),
+					&test_affinity);
+			assert(sched_getcpu() == i);
+			assert(rseq_current_cpu() == i);
+			assert(rseq_current_cpu_raw() == i);
+			assert(rseq_cpu_start() == i);
+			node = rseq_fallback_current_node();
+			assert(rseq_current_node_id() == node);
+			CPU_CLR(i, &test_affinity);
+		}
+	}
+	sched_setaffinity(0, sizeof(affinity), &affinity);
+}
+
+int main(int argc, char **argv)
+{
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		goto init_thread_error;
+	}
+	printf("testing current cpu\n");
+	test_cpu_pointer();
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		goto init_thread_error;
+	}
+	return 0;
+
+init_thread_error:
+	return -1;
+}
diff --git a/tools/testing/selftests/rseq/compiler.h b/tools/testing/selftests/rseq/compiler.h
new file mode 100644
index 000000000000..49d62fbd6dda
--- /dev/null
+++ b/tools/testing/selftests/rseq/compiler.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+/*
+ * rseq/compiler.h
+ *
+ * Work-around asm goto compiler bugs.
+ *
+ * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef RSEQ_COMPILER_H
+#define RSEQ_COMPILER_H
+
+/*
+ * gcc prior to 4.8.2 miscompiles asm goto.
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670
+ *
+ * gcc prior to 8.1.0 miscompiles asm goto at O1.
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103908
+ *
+ * clang prior to version 13.0.1 miscompiles asm goto at O2.
+ * https://github.com/llvm/llvm-project/issues/52735
+ *
+ * Work around these issues by adding a volatile inline asm with
+ * memory clobber in the fallthrough after the asm goto and at each
+ * label target.  Emit this for all compilers in case other similar
+ * issues are found in the future.
+ */
+#define rseq_after_asm_goto()	asm volatile ("" : : : "memory")
+
+/* Combine two tokens. */
+#define RSEQ__COMBINE_TOKENS(_tokena, _tokenb)	\
+	_tokena##_tokenb
+#define RSEQ_COMBINE_TOKENS(_tokena, _tokenb)	\
+	RSEQ__COMBINE_TOKENS(_tokena, _tokenb)
+
+#ifdef __cplusplus
+#define rseq_unqual_scalar_typeof(x)					\
+	std::remove_cv<std::remove_reference<decltype(x)>::type>::type
+#else
+#define rseq_scalar_type_to_expr(type)					\
+	unsigned type: (unsigned type)0,				\
+	signed type: (signed type)0
+
+/*
+ * Use C11 _Generic to express unqualified type from expression. This removes
+ * volatile qualifier from expression type.
+ */
+#define rseq_unqual_scalar_typeof(x)					\
+	__typeof__(							\
+		_Generic((x),						\
+			char: (char)0,					\
+			rseq_scalar_type_to_expr(char),			\
+			rseq_scalar_type_to_expr(short),		\
+			rseq_scalar_type_to_expr(int),			\
+			rseq_scalar_type_to_expr(long),			\
+			rseq_scalar_type_to_expr(long long),		\
+			default: (x)					\
+		)							\
+	)
+#endif
+
+#endif  /* RSEQ_COMPILER_H_ */
diff --git a/tools/testing/selftests/rseq/param_test.c b/tools/testing/selftests/rseq/param_test.c
new file mode 100644
index 000000000000..05d03e679e06
--- /dev/null
+++ b/tools/testing/selftests/rseq/param_test.c
@@ -0,0 +1,1660 @@
+// SPDX-License-Identifier: LGPL-2.1
+#define _GNU_SOURCE
+#include <assert.h>
+#include <linux/membarrier.h>
+#include <pthread.h>
+#include <sched.h>
+#include <stdatomic.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <syscall.h>
+#include <unistd.h>
+#include <poll.h>
+#include <sys/types.h>
+#include <signal.h>
+#include <errno.h>
+#include <stddef.h>
+#include <stdbool.h>
+
+static inline pid_t rseq_gettid(void)
+{
+	return syscall(__NR_gettid);
+}
+
+#define NR_INJECT	9
+static int loop_cnt[NR_INJECT + 1];
+
+static int loop_cnt_1 asm("asm_loop_cnt_1") __attribute__((used));
+static int loop_cnt_2 asm("asm_loop_cnt_2") __attribute__((used));
+static int loop_cnt_3 asm("asm_loop_cnt_3") __attribute__((used));
+static int loop_cnt_4 asm("asm_loop_cnt_4") __attribute__((used));
+static int loop_cnt_5 asm("asm_loop_cnt_5") __attribute__((used));
+static int loop_cnt_6 asm("asm_loop_cnt_6") __attribute__((used));
+
+static int opt_modulo, verbose;
+
+static int opt_yield, opt_signal, opt_sleep,
+		opt_disable_rseq, opt_threads = 200,
+		opt_disable_mod = 0, opt_test = 's';
+
+static long long opt_reps = 5000;
+
+static __thread __attribute__((tls_model("initial-exec")))
+unsigned int signals_delivered;
+
+#ifndef BENCHMARK
+
+static __thread __attribute__((tls_model("initial-exec"), unused))
+unsigned int yield_mod_cnt, nr_abort;
+
+#define printf_verbose(fmt, ...)			\
+	do {						\
+		if (verbose)				\
+			printf(fmt, ## __VA_ARGS__);	\
+	} while (0)
+
+#ifdef __i386__
+
+#define INJECT_ASM_REG	"eax"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"mov asm_loop_cnt_" #n ", %%" INJECT_ASM_REG "\n\t" \
+	"test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \
+	"jz 333f\n\t" \
+	"222:\n\t" \
+	"dec %%" INJECT_ASM_REG "\n\t" \
+	"jnz 222b\n\t" \
+	"333:\n\t"
+
+#elif defined(__x86_64__)
+
+#define INJECT_ASM_REG_P	"rax"
+#define INJECT_ASM_REG		"eax"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG_P \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"lea asm_loop_cnt_" #n "(%%rip), %%" INJECT_ASM_REG_P "\n\t" \
+	"mov (%%" INJECT_ASM_REG_P "), %%" INJECT_ASM_REG "\n\t" \
+	"test %%" INJECT_ASM_REG ",%%" INJECT_ASM_REG "\n\t" \
+	"jz 333f\n\t" \
+	"222:\n\t" \
+	"dec %%" INJECT_ASM_REG "\n\t" \
+	"jnz 222b\n\t" \
+	"333:\n\t"
+
+#elif defined(__s390__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"r12"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"l %%" INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \
+	"ltr %%" INJECT_ASM_REG ", %%" INJECT_ASM_REG "\n\t" \
+	"je 333f\n\t" \
+	"222:\n\t" \
+	"ahi %%" INJECT_ASM_REG ", -1\n\t" \
+	"jnz 222b\n\t" \
+	"333:\n\t"
+
+#elif defined(__ARMEL__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"r4"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"ldr " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \
+	"cmp " INJECT_ASM_REG ", #0\n\t" \
+	"beq 333f\n\t" \
+	"222:\n\t" \
+	"subs " INJECT_ASM_REG ", #1\n\t" \
+	"bne 222b\n\t" \
+	"333:\n\t"
+
+#elif defined(__AARCH64EL__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1] "Qo" (loop_cnt[1]) \
+	, [loop_cnt_2] "Qo" (loop_cnt[2]) \
+	, [loop_cnt_3] "Qo" (loop_cnt[3]) \
+	, [loop_cnt_4] "Qo" (loop_cnt[4]) \
+	, [loop_cnt_5] "Qo" (loop_cnt[5]) \
+	, [loop_cnt_6] "Qo" (loop_cnt[6])
+
+#define INJECT_ASM_REG	RSEQ_ASM_TMP_REG32
+
+#define RSEQ_INJECT_ASM(n) \
+	"	ldr	" INJECT_ASM_REG ", %[loop_cnt_" #n "]\n"	\
+	"	cbz	" INJECT_ASM_REG ", 333f\n"			\
+	"222:\n"							\
+	"	sub	" INJECT_ASM_REG ", " INJECT_ASM_REG ", #1\n"	\
+	"	cbnz	" INJECT_ASM_REG ", 222b\n"			\
+	"333:\n"
+
+#elif defined(__PPC__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"r18"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"lwz %%" INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \
+	"cmpwi %%" INJECT_ASM_REG ", 0\n\t" \
+	"beq 333f\n\t" \
+	"222:\n\t" \
+	"subic. %%" INJECT_ASM_REG ", %%" INJECT_ASM_REG ", 1\n\t" \
+	"bne 222b\n\t" \
+	"333:\n\t"
+
+#elif defined(__mips__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"$5"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n) \
+	"lw " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t" \
+	"beqz " INJECT_ASM_REG ", 333f\n\t" \
+	"222:\n\t" \
+	"addiu " INJECT_ASM_REG ", -1\n\t" \
+	"bnez " INJECT_ASM_REG ", 222b\n\t" \
+	"333:\n\t"
+#elif defined(__riscv)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"t1"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n)					\
+	"lw " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t"		\
+	"beqz " INJECT_ASM_REG ", 333f\n\t"			\
+	"222:\n\t"						\
+	"addi  " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t"	\
+	"bnez " INJECT_ASM_REG ", 222b\n\t"			\
+	"333:\n\t"
+#elif defined(__or1k__)
+
+#define RSEQ_INJECT_INPUT \
+	, [loop_cnt_1]"m"(loop_cnt[1]) \
+	, [loop_cnt_2]"m"(loop_cnt[2]) \
+	, [loop_cnt_3]"m"(loop_cnt[3]) \
+	, [loop_cnt_4]"m"(loop_cnt[4]) \
+	, [loop_cnt_5]"m"(loop_cnt[5]) \
+	, [loop_cnt_6]"m"(loop_cnt[6])
+
+#define INJECT_ASM_REG	"r31"
+
+#define RSEQ_INJECT_CLOBBER \
+	, INJECT_ASM_REG
+
+#define RSEQ_INJECT_ASM(n)					\
+	"l.lwz   " INJECT_ASM_REG ", %[loop_cnt_" #n "]\n\t"	\
+	"l.sfeqi " INJECT_ASM_REG ", 0\n\t"			\
+	"l.bf 333f\n\t"						\
+	" l.nop\n\t"						\
+	"222:\n\t"						\
+	"l.addi  " INJECT_ASM_REG "," INJECT_ASM_REG ", -1\n\t"	\
+	"l.sfeqi " INJECT_ASM_REG ", 0\n\t"			\
+	"l.bf 222f\n\t"						\
+	" l.nop\n\t"						\
+	"333:\n\t"
+#else
+#error unsupported target
+#endif
+
+#define RSEQ_INJECT_FAILED \
+	nr_abort++;
+
+#define RSEQ_INJECT_C(n) \
+{ \
+	int loc_i, loc_nr_loops = loop_cnt[n]; \
+	\
+	for (loc_i = 0; loc_i < loc_nr_loops; loc_i++) { \
+		rseq_barrier(); \
+	} \
+	if (loc_nr_loops == -1 && opt_modulo) { \
+		if (yield_mod_cnt == opt_modulo - 1) { \
+			if (opt_sleep > 0) \
+				poll(NULL, 0, opt_sleep); \
+			if (opt_yield) \
+				sched_yield(); \
+			if (opt_signal) \
+				raise(SIGUSR1); \
+			yield_mod_cnt = 0; \
+		} else { \
+			yield_mod_cnt++; \
+		} \
+	} \
+}
+
+#else
+
+#define printf_verbose(fmt, ...)
+
+#endif /* BENCHMARK */
+
+#include "rseq.h"
+
+static enum rseq_mo opt_mo = RSEQ_MO_RELAXED;
+
+#ifdef RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
+#define TEST_MEMBARRIER
+
+static int sys_membarrier(int cmd, int flags, int cpu_id)
+{
+	return syscall(__NR_membarrier, cmd, flags, cpu_id);
+}
+#endif
+
+#ifdef BUILDOPT_RSEQ_PERCPU_MM_CID
+# define RSEQ_PERCPU	RSEQ_PERCPU_MM_CID
+static
+int get_current_cpu_id(void)
+{
+	return rseq_current_mm_cid();
+}
+static
+bool rseq_validate_cpu_id(void)
+{
+	return rseq_mm_cid_available();
+}
+static
+bool rseq_use_cpu_index(void)
+{
+	return false;	/* Use mm_cid */
+}
+# ifdef TEST_MEMBARRIER
+/*
+ * Membarrier does not currently support targeting a mm_cid, so
+ * issue the barrier on all cpus.
+ */
+static
+int rseq_membarrier_expedited(int cpu)
+{
+	return sys_membarrier(MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ,
+			      0, 0);
+}
+# endif /* TEST_MEMBARRIER */
+#else
+# define RSEQ_PERCPU	RSEQ_PERCPU_CPU_ID
+static
+int get_current_cpu_id(void)
+{
+	return rseq_cpu_start();
+}
+static
+bool rseq_validate_cpu_id(void)
+{
+	return rseq_current_cpu_raw() >= 0;
+}
+static
+bool rseq_use_cpu_index(void)
+{
+	return true;	/* Use cpu_id as index. */
+}
+# ifdef TEST_MEMBARRIER
+static
+int rseq_membarrier_expedited(int cpu)
+{
+	return sys_membarrier(MEMBARRIER_CMD_PRIVATE_EXPEDITED_RSEQ,
+			      MEMBARRIER_CMD_FLAG_CPU, cpu);
+}
+# endif /* TEST_MEMBARRIER */
+#endif
+
+struct percpu_lock_entry {
+	intptr_t v;
+} __attribute__((aligned(128)));
+
+struct percpu_lock {
+	struct percpu_lock_entry c[CPU_SETSIZE];
+};
+
+struct test_data_entry {
+	intptr_t count;
+} __attribute__((aligned(128)));
+
+struct spinlock_test_data {
+	struct percpu_lock lock;
+	struct test_data_entry c[CPU_SETSIZE];
+};
+
+struct spinlock_thread_test_data {
+	struct spinlock_test_data *data;
+	long long reps;
+	int reg;
+};
+
+struct inc_test_data {
+	struct test_data_entry c[CPU_SETSIZE];
+};
+
+struct inc_thread_test_data {
+	struct inc_test_data *data;
+	long long reps;
+	int reg;
+};
+
+struct percpu_list_node {
+	intptr_t data;
+	struct percpu_list_node *next;
+};
+
+struct percpu_list_entry {
+	struct percpu_list_node *head;
+} __attribute__((aligned(128)));
+
+struct percpu_list {
+	struct percpu_list_entry c[CPU_SETSIZE];
+};
+
+#define BUFFER_ITEM_PER_CPU	100
+
+struct percpu_buffer_node {
+	intptr_t data;
+};
+
+struct percpu_buffer_entry {
+	intptr_t offset;
+	intptr_t buflen;
+	struct percpu_buffer_node **array;
+} __attribute__((aligned(128)));
+
+struct percpu_buffer {
+	struct percpu_buffer_entry c[CPU_SETSIZE];
+};
+
+#define MEMCPY_BUFFER_ITEM_PER_CPU	100
+
+struct percpu_memcpy_buffer_node {
+	intptr_t data1;
+	uint64_t data2;
+};
+
+struct percpu_memcpy_buffer_entry {
+	intptr_t offset;
+	intptr_t buflen;
+	struct percpu_memcpy_buffer_node *array;
+} __attribute__((aligned(128)));
+
+struct percpu_memcpy_buffer {
+	struct percpu_memcpy_buffer_entry c[CPU_SETSIZE];
+};
+
+/* A simple percpu spinlock. Grabs lock on current cpu. */
+static int rseq_this_cpu_lock(struct percpu_lock *lock)
+{
+	int cpu;
+
+	for (;;) {
+		int ret;
+
+		cpu = get_current_cpu_id();
+		if (cpu < 0) {
+			fprintf(stderr, "pid: %d: tid: %d, cpu: %d: cid: %d\n",
+					getpid(), (int) rseq_gettid(), rseq_current_cpu_raw(), cpu);
+			abort();
+		}
+		ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+					 &lock->c[cpu].v,
+					 0, 1, cpu);
+		if (rseq_likely(!ret))
+			break;
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	/*
+	 * Acquire semantic when taking lock after control dependency.
+	 * Matches rseq_smp_store_release().
+	 */
+	rseq_smp_acquire__after_ctrl_dep();
+	return cpu;
+}
+
+static void rseq_percpu_unlock(struct percpu_lock *lock, int cpu)
+{
+	assert(lock->c[cpu].v == 1);
+	/*
+	 * Release lock, with release semantic. Matches
+	 * rseq_smp_acquire__after_ctrl_dep().
+	 */
+	rseq_smp_store_release(&lock->c[cpu].v, 0);
+}
+
+void *test_percpu_spinlock_thread(void *arg)
+{
+	struct spinlock_thread_test_data *thread_data = arg;
+	struct spinlock_test_data *data = thread_data->data;
+	long long i, reps;
+
+	if (!opt_disable_rseq && thread_data->reg &&
+	    rseq_register_current_thread())
+		abort();
+	reps = thread_data->reps;
+	for (i = 0; i < reps; i++) {
+		int cpu = rseq_this_cpu_lock(&data->lock);
+		data->c[cpu].count++;
+		rseq_percpu_unlock(&data->lock, cpu);
+#ifndef BENCHMARK
+		if (i != 0 && !(i % (reps / 10)))
+			printf_verbose("tid %d: count %lld\n",
+				       (int) rseq_gettid(), i);
+#endif
+	}
+	printf_verbose("tid %d: number of rseq abort: %d, signals delivered: %u\n",
+		       (int) rseq_gettid(), nr_abort, signals_delivered);
+	if (!opt_disable_rseq && thread_data->reg &&
+	    rseq_unregister_current_thread())
+		abort();
+	return NULL;
+}
+
+/*
+ * A simple test which implements a sharded counter using a per-cpu
+ * lock.  Obviously real applications might prefer to simply use a
+ * per-cpu increment; however, this is reasonable for a test and the
+ * lock can be extended to synchronize more complicated operations.
+ */
+void test_percpu_spinlock(void)
+{
+	const int num_threads = opt_threads;
+	int i, ret;
+	uint64_t sum;
+	pthread_t test_threads[num_threads];
+	struct spinlock_test_data data;
+	struct spinlock_thread_test_data thread_data[num_threads];
+
+	memset(&data, 0, sizeof(data));
+	for (i = 0; i < num_threads; i++) {
+		thread_data[i].reps = opt_reps;
+		if (opt_disable_mod <= 0 || (i % opt_disable_mod))
+			thread_data[i].reg = 1;
+		else
+			thread_data[i].reg = 0;
+		thread_data[i].data = &data;
+		ret = pthread_create(&test_threads[i], NULL,
+				     test_percpu_spinlock_thread,
+				     &thread_data[i]);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(test_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	sum = 0;
+	for (i = 0; i < CPU_SETSIZE; i++)
+		sum += data.c[i].count;
+
+	assert(sum == (uint64_t)opt_reps * num_threads);
+}
+
+void *test_percpu_inc_thread(void *arg)
+{
+	struct inc_thread_test_data *thread_data = arg;
+	struct inc_test_data *data = thread_data->data;
+	long long i, reps;
+
+	if (!opt_disable_rseq && thread_data->reg &&
+	    rseq_register_current_thread())
+		abort();
+	reps = thread_data->reps;
+	for (i = 0; i < reps; i++) {
+		int ret;
+
+		do {
+			int cpu;
+
+			cpu = get_current_cpu_id();
+			ret = rseq_addv(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+					&data->c[cpu].count, 1, cpu);
+		} while (rseq_unlikely(ret));
+#ifndef BENCHMARK
+		if (i != 0 && !(i % (reps / 10)))
+			printf_verbose("tid %d: count %lld\n",
+				       (int) rseq_gettid(), i);
+#endif
+	}
+	printf_verbose("tid %d: number of rseq abort: %d, signals delivered: %u\n",
+		       (int) rseq_gettid(), nr_abort, signals_delivered);
+	if (!opt_disable_rseq && thread_data->reg &&
+	    rseq_unregister_current_thread())
+		abort();
+	return NULL;
+}
+
+void test_percpu_inc(void)
+{
+	const int num_threads = opt_threads;
+	int i, ret;
+	uint64_t sum;
+	pthread_t test_threads[num_threads];
+	struct inc_test_data data;
+	struct inc_thread_test_data thread_data[num_threads];
+
+	memset(&data, 0, sizeof(data));
+	for (i = 0; i < num_threads; i++) {
+		thread_data[i].reps = opt_reps;
+		if (opt_disable_mod <= 0 || (i % opt_disable_mod))
+			thread_data[i].reg = 1;
+		else
+			thread_data[i].reg = 0;
+		thread_data[i].data = &data;
+		ret = pthread_create(&test_threads[i], NULL,
+				     test_percpu_inc_thread,
+				     &thread_data[i]);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(test_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	sum = 0;
+	for (i = 0; i < CPU_SETSIZE; i++)
+		sum += data.c[i].count;
+
+	assert(sum == (uint64_t)opt_reps * num_threads);
+}
+
+void this_cpu_list_push(struct percpu_list *list,
+			struct percpu_list_node *node,
+			int *_cpu)
+{
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr, newval, expect;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		/* Load list->c[cpu].head with single-copy atomicity. */
+		expect = (intptr_t)RSEQ_READ_ONCE(list->c[cpu].head);
+		newval = (intptr_t)node;
+		targetptr = (intptr_t *)&list->c[cpu].head;
+		node->next = (struct percpu_list_node *)expect;
+		ret = rseq_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+					 targetptr, expect, newval, cpu);
+		if (rseq_likely(!ret))
+			break;
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+}
+
+/*
+ * Unlike a traditional lock-less linked list; the availability of a
+ * rseq primitive allows us to implement pop without concerns over
+ * ABA-type races.
+ */
+struct percpu_list_node *this_cpu_list_pop(struct percpu_list *list,
+					   int *_cpu)
+{
+	struct percpu_list_node *node = NULL;
+	int cpu;
+
+	for (;;) {
+		struct percpu_list_node *head;
+		intptr_t *targetptr, expectnot, *load;
+		long offset;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		targetptr = (intptr_t *)&list->c[cpu].head;
+		expectnot = (intptr_t)NULL;
+		offset = offsetof(struct percpu_list_node, next);
+		load = (intptr_t *)&head;
+		ret = rseq_cmpnev_storeoffp_load(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+						 targetptr, expectnot,
+						 offset, load, cpu);
+		if (rseq_likely(!ret)) {
+			node = head;
+			break;
+		}
+		if (ret > 0)
+			break;
+		/* Retry if rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+	return node;
+}
+
+/*
+ * __percpu_list_pop is not safe against concurrent accesses. Should
+ * only be used on lists that are not concurrently modified.
+ */
+struct percpu_list_node *__percpu_list_pop(struct percpu_list *list, int cpu)
+{
+	struct percpu_list_node *node;
+
+	node = list->c[cpu].head;
+	if (!node)
+		return NULL;
+	list->c[cpu].head = node->next;
+	return node;
+}
+
+void *test_percpu_list_thread(void *arg)
+{
+	long long i, reps;
+	struct percpu_list *list = (struct percpu_list *)arg;
+
+	if (!opt_disable_rseq && rseq_register_current_thread())
+		abort();
+
+	reps = opt_reps;
+	for (i = 0; i < reps; i++) {
+		struct percpu_list_node *node;
+
+		node = this_cpu_list_pop(list, NULL);
+		if (opt_yield)
+			sched_yield();  /* encourage shuffling */
+		if (node)
+			this_cpu_list_push(list, node, NULL);
+	}
+
+	printf_verbose("tid %d: number of rseq abort: %d, signals delivered: %u\n",
+		       (int) rseq_gettid(), nr_abort, signals_delivered);
+	if (!opt_disable_rseq && rseq_unregister_current_thread())
+		abort();
+
+	return NULL;
+}
+
+/* Simultaneous modification to a per-cpu linked list from many threads.  */
+void test_percpu_list(void)
+{
+	const int num_threads = opt_threads;
+	int i, j, ret;
+	uint64_t sum = 0, expected_sum = 0;
+	struct percpu_list list;
+	pthread_t test_threads[num_threads];
+	cpu_set_t allowed_cpus;
+
+	memset(&list, 0, sizeof(list));
+
+	/* Generate list entries for every usable cpu. */
+	sched_getaffinity(0, sizeof(allowed_cpus), &allowed_cpus);
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+		for (j = 1; j <= 100; j++) {
+			struct percpu_list_node *node;
+
+			expected_sum += j;
+
+			node = malloc(sizeof(*node));
+			assert(node);
+			node->data = j;
+			node->next = list.c[i].head;
+			list.c[i].head = node;
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_create(&test_threads[i], NULL,
+				     test_percpu_list_thread, &list);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(test_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		struct percpu_list_node *node;
+
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+
+		while ((node = __percpu_list_pop(&list, i))) {
+			sum += node->data;
+			free(node);
+		}
+	}
+
+	/*
+	 * All entries should now be accounted for (unless some external
+	 * actor is interfering with our allowed affinity while this
+	 * test is running).
+	 */
+	assert(sum == expected_sum);
+}
+
+bool this_cpu_buffer_push(struct percpu_buffer *buffer,
+			  struct percpu_buffer_node *node,
+			  int *_cpu)
+{
+	bool result = false;
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr_spec, newval_spec;
+		intptr_t *targetptr_final, newval_final;
+		intptr_t offset;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		offset = RSEQ_READ_ONCE(buffer->c[cpu].offset);
+		if (offset == buffer->c[cpu].buflen)
+			break;
+		newval_spec = (intptr_t)node;
+		targetptr_spec = (intptr_t *)&buffer->c[cpu].array[offset];
+		newval_final = offset + 1;
+		targetptr_final = &buffer->c[cpu].offset;
+		ret = rseq_cmpeqv_trystorev_storev(opt_mo, RSEQ_PERCPU,
+			targetptr_final, offset, targetptr_spec,
+			newval_spec, newval_final, cpu);
+		if (rseq_likely(!ret)) {
+			result = true;
+			break;
+		}
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+	return result;
+}
+
+struct percpu_buffer_node *this_cpu_buffer_pop(struct percpu_buffer *buffer,
+					       int *_cpu)
+{
+	struct percpu_buffer_node *head;
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr, newval;
+		intptr_t offset;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		/* Load offset with single-copy atomicity. */
+		offset = RSEQ_READ_ONCE(buffer->c[cpu].offset);
+		if (offset == 0) {
+			head = NULL;
+			break;
+		}
+		head = RSEQ_READ_ONCE(buffer->c[cpu].array[offset - 1]);
+		newval = offset - 1;
+		targetptr = (intptr_t *)&buffer->c[cpu].offset;
+		ret = rseq_cmpeqv_cmpeqv_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+			targetptr, offset,
+			(intptr_t *)&buffer->c[cpu].array[offset - 1],
+			(intptr_t)head, newval, cpu);
+		if (rseq_likely(!ret))
+			break;
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+	return head;
+}
+
+/*
+ * __percpu_buffer_pop is not safe against concurrent accesses. Should
+ * only be used on buffers that are not concurrently modified.
+ */
+struct percpu_buffer_node *__percpu_buffer_pop(struct percpu_buffer *buffer,
+					       int cpu)
+{
+	struct percpu_buffer_node *head;
+	intptr_t offset;
+
+	offset = buffer->c[cpu].offset;
+	if (offset == 0)
+		return NULL;
+	head = buffer->c[cpu].array[offset - 1];
+	buffer->c[cpu].offset = offset - 1;
+	return head;
+}
+
+void *test_percpu_buffer_thread(void *arg)
+{
+	long long i, reps;
+	struct percpu_buffer *buffer = (struct percpu_buffer *)arg;
+
+	if (!opt_disable_rseq && rseq_register_current_thread())
+		abort();
+
+	reps = opt_reps;
+	for (i = 0; i < reps; i++) {
+		struct percpu_buffer_node *node;
+
+		node = this_cpu_buffer_pop(buffer, NULL);
+		if (opt_yield)
+			sched_yield();  /* encourage shuffling */
+		if (node) {
+			if (!this_cpu_buffer_push(buffer, node, NULL)) {
+				/* Should increase buffer size. */
+				abort();
+			}
+		}
+	}
+
+	printf_verbose("tid %d: number of rseq abort: %d, signals delivered: %u\n",
+		       (int) rseq_gettid(), nr_abort, signals_delivered);
+	if (!opt_disable_rseq && rseq_unregister_current_thread())
+		abort();
+
+	return NULL;
+}
+
+/* Simultaneous modification to a per-cpu buffer from many threads.  */
+void test_percpu_buffer(void)
+{
+	const int num_threads = opt_threads;
+	int i, j, ret;
+	uint64_t sum = 0, expected_sum = 0;
+	struct percpu_buffer buffer;
+	pthread_t test_threads[num_threads];
+	cpu_set_t allowed_cpus;
+
+	memset(&buffer, 0, sizeof(buffer));
+
+	/* Generate list entries for every usable cpu. */
+	sched_getaffinity(0, sizeof(allowed_cpus), &allowed_cpus);
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+		/* Worse-case is every item in same CPU. */
+		buffer.c[i].array =
+			malloc(sizeof(*buffer.c[i].array) * CPU_SETSIZE *
+			       BUFFER_ITEM_PER_CPU);
+		assert(buffer.c[i].array);
+		buffer.c[i].buflen = CPU_SETSIZE * BUFFER_ITEM_PER_CPU;
+		for (j = 1; j <= BUFFER_ITEM_PER_CPU; j++) {
+			struct percpu_buffer_node *node;
+
+			expected_sum += j;
+
+			/*
+			 * We could theoretically put the word-sized
+			 * "data" directly in the buffer. However, we
+			 * want to model objects that would not fit
+			 * within a single word, so allocate an object
+			 * for each node.
+			 */
+			node = malloc(sizeof(*node));
+			assert(node);
+			node->data = j;
+			buffer.c[i].array[j - 1] = node;
+			buffer.c[i].offset++;
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_create(&test_threads[i], NULL,
+				     test_percpu_buffer_thread, &buffer);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(test_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		struct percpu_buffer_node *node;
+
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+
+		while ((node = __percpu_buffer_pop(&buffer, i))) {
+			sum += node->data;
+			free(node);
+		}
+		free(buffer.c[i].array);
+	}
+
+	/*
+	 * All entries should now be accounted for (unless some external
+	 * actor is interfering with our allowed affinity while this
+	 * test is running).
+	 */
+	assert(sum == expected_sum);
+}
+
+bool this_cpu_memcpy_buffer_push(struct percpu_memcpy_buffer *buffer,
+				 struct percpu_memcpy_buffer_node item,
+				 int *_cpu)
+{
+	bool result = false;
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr_final, newval_final, offset;
+		char *destptr, *srcptr;
+		size_t copylen;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		/* Load offset with single-copy atomicity. */
+		offset = RSEQ_READ_ONCE(buffer->c[cpu].offset);
+		if (offset == buffer->c[cpu].buflen)
+			break;
+		destptr = (char *)&buffer->c[cpu].array[offset];
+		srcptr = (char *)&item;
+		/* copylen must be <= 4kB. */
+		copylen = sizeof(item);
+		newval_final = offset + 1;
+		targetptr_final = &buffer->c[cpu].offset;
+		ret = rseq_cmpeqv_trymemcpy_storev(
+			opt_mo, RSEQ_PERCPU,
+			targetptr_final, offset,
+			destptr, srcptr, copylen,
+			newval_final, cpu);
+		if (rseq_likely(!ret)) {
+			result = true;
+			break;
+		}
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+	return result;
+}
+
+bool this_cpu_memcpy_buffer_pop(struct percpu_memcpy_buffer *buffer,
+				struct percpu_memcpy_buffer_node *item,
+				int *_cpu)
+{
+	bool result = false;
+	int cpu;
+
+	for (;;) {
+		intptr_t *targetptr_final, newval_final, offset;
+		char *destptr, *srcptr;
+		size_t copylen;
+		int ret;
+
+		cpu = get_current_cpu_id();
+		/* Load offset with single-copy atomicity. */
+		offset = RSEQ_READ_ONCE(buffer->c[cpu].offset);
+		if (offset == 0)
+			break;
+		destptr = (char *)item;
+		srcptr = (char *)&buffer->c[cpu].array[offset - 1];
+		/* copylen must be <= 4kB. */
+		copylen = sizeof(*item);
+		newval_final = offset - 1;
+		targetptr_final = &buffer->c[cpu].offset;
+		ret = rseq_cmpeqv_trymemcpy_storev(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+			targetptr_final, offset, destptr, srcptr, copylen,
+			newval_final, cpu);
+		if (rseq_likely(!ret)) {
+			result = true;
+			break;
+		}
+		/* Retry if comparison fails or rseq aborts. */
+	}
+	if (_cpu)
+		*_cpu = cpu;
+	return result;
+}
+
+/*
+ * __percpu_memcpy_buffer_pop is not safe against concurrent accesses. Should
+ * only be used on buffers that are not concurrently modified.
+ */
+bool __percpu_memcpy_buffer_pop(struct percpu_memcpy_buffer *buffer,
+				struct percpu_memcpy_buffer_node *item,
+				int cpu)
+{
+	intptr_t offset;
+
+	offset = buffer->c[cpu].offset;
+	if (offset == 0)
+		return false;
+	memcpy(item, &buffer->c[cpu].array[offset - 1], sizeof(*item));
+	buffer->c[cpu].offset = offset - 1;
+	return true;
+}
+
+void *test_percpu_memcpy_buffer_thread(void *arg)
+{
+	long long i, reps;
+	struct percpu_memcpy_buffer *buffer = (struct percpu_memcpy_buffer *)arg;
+
+	if (!opt_disable_rseq && rseq_register_current_thread())
+		abort();
+
+	reps = opt_reps;
+	for (i = 0; i < reps; i++) {
+		struct percpu_memcpy_buffer_node item;
+		bool result;
+
+		result = this_cpu_memcpy_buffer_pop(buffer, &item, NULL);
+		if (opt_yield)
+			sched_yield();  /* encourage shuffling */
+		if (result) {
+			if (!this_cpu_memcpy_buffer_push(buffer, item, NULL)) {
+				/* Should increase buffer size. */
+				abort();
+			}
+		}
+	}
+
+	printf_verbose("tid %d: number of rseq abort: %d, signals delivered: %u\n",
+		       (int) rseq_gettid(), nr_abort, signals_delivered);
+	if (!opt_disable_rseq && rseq_unregister_current_thread())
+		abort();
+
+	return NULL;
+}
+
+/* Simultaneous modification to a per-cpu buffer from many threads.  */
+void test_percpu_memcpy_buffer(void)
+{
+	const int num_threads = opt_threads;
+	int i, j, ret;
+	uint64_t sum = 0, expected_sum = 0;
+	struct percpu_memcpy_buffer buffer;
+	pthread_t test_threads[num_threads];
+	cpu_set_t allowed_cpus;
+
+	memset(&buffer, 0, sizeof(buffer));
+
+	/* Generate list entries for every usable cpu. */
+	sched_getaffinity(0, sizeof(allowed_cpus), &allowed_cpus);
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+		/* Worse-case is every item in same CPU. */
+		buffer.c[i].array =
+			malloc(sizeof(*buffer.c[i].array) * CPU_SETSIZE *
+			       MEMCPY_BUFFER_ITEM_PER_CPU);
+		assert(buffer.c[i].array);
+		buffer.c[i].buflen = CPU_SETSIZE * MEMCPY_BUFFER_ITEM_PER_CPU;
+		for (j = 1; j <= MEMCPY_BUFFER_ITEM_PER_CPU; j++) {
+			expected_sum += 2 * j + 1;
+
+			/*
+			 * We could theoretically put the word-sized
+			 * "data" directly in the buffer. However, we
+			 * want to model objects that would not fit
+			 * within a single word, so allocate an object
+			 * for each node.
+			 */
+			buffer.c[i].array[j - 1].data1 = j;
+			buffer.c[i].array[j - 1].data2 = j + 1;
+			buffer.c[i].offset++;
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_create(&test_threads[i], NULL,
+				     test_percpu_memcpy_buffer_thread,
+				     &buffer);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(test_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		struct percpu_memcpy_buffer_node item;
+
+		if (rseq_use_cpu_index() && !CPU_ISSET(i, &allowed_cpus))
+			continue;
+
+		while (__percpu_memcpy_buffer_pop(&buffer, &item, i)) {
+			sum += item.data1;
+			sum += item.data2;
+		}
+		free(buffer.c[i].array);
+	}
+
+	/*
+	 * All entries should now be accounted for (unless some external
+	 * actor is interfering with our allowed affinity while this
+	 * test is running).
+	 */
+	assert(sum == expected_sum);
+}
+
+static void test_signal_interrupt_handler(int signo)
+{
+	signals_delivered++;
+}
+
+static int set_signal_handler(void)
+{
+	int ret = 0;
+	struct sigaction sa;
+	sigset_t sigset;
+
+	ret = sigemptyset(&sigset);
+	if (ret < 0) {
+		perror("sigemptyset");
+		return ret;
+	}
+
+	sa.sa_handler = test_signal_interrupt_handler;
+	sa.sa_mask = sigset;
+	sa.sa_flags = 0;
+	ret = sigaction(SIGUSR1, &sa, NULL);
+	if (ret < 0) {
+		perror("sigaction");
+		return ret;
+	}
+
+	printf_verbose("Signal handler set for SIGUSR1\n");
+
+	return ret;
+}
+
+/* Test MEMBARRIER_CMD_PRIVATE_RESTART_RSEQ_ON_CPU membarrier command. */
+#ifdef TEST_MEMBARRIER
+struct test_membarrier_thread_args {
+	int stop;
+	intptr_t percpu_list_ptr;
+};
+
+/* Worker threads modify data in their "active" percpu lists. */
+void *test_membarrier_worker_thread(void *arg)
+{
+	struct test_membarrier_thread_args *args =
+		(struct test_membarrier_thread_args *)arg;
+	const int iters = opt_reps;
+	int i;
+
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+
+	/* Wait for initialization. */
+	while (!__atomic_load_n(&args->percpu_list_ptr, __ATOMIC_ACQUIRE)) {}
+
+	for (i = 0; i < iters; ++i) {
+		int ret;
+
+		do {
+			int cpu = get_current_cpu_id();
+
+			ret = rseq_offset_deref_addv(RSEQ_MO_RELAXED, RSEQ_PERCPU,
+				&args->percpu_list_ptr,
+				sizeof(struct percpu_list_entry) * cpu, 1, cpu);
+		} while (rseq_unlikely(ret));
+	}
+
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+	return NULL;
+}
+
+void test_membarrier_init_percpu_list(struct percpu_list *list)
+{
+	int i;
+
+	memset(list, 0, sizeof(*list));
+	for (i = 0; i < CPU_SETSIZE; i++) {
+		struct percpu_list_node *node;
+
+		node = malloc(sizeof(*node));
+		assert(node);
+		node->data = 0;
+		node->next = NULL;
+		list->c[i].head = node;
+	}
+}
+
+void test_membarrier_free_percpu_list(struct percpu_list *list)
+{
+	int i;
+
+	for (i = 0; i < CPU_SETSIZE; i++)
+		free(list->c[i].head);
+}
+
+/*
+ * The manager thread swaps per-cpu lists that worker threads see,
+ * and validates that there are no unexpected modifications.
+ */
+void *test_membarrier_manager_thread(void *arg)
+{
+	struct test_membarrier_thread_args *args =
+		(struct test_membarrier_thread_args *)arg;
+	struct percpu_list list_a, list_b;
+	intptr_t expect_a = 0, expect_b = 0;
+	int cpu_a = 0, cpu_b = 0;
+
+	if (rseq_register_current_thread()) {
+		fprintf(stderr, "Error: rseq_register_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+
+	/* Init lists. */
+	test_membarrier_init_percpu_list(&list_a);
+	test_membarrier_init_percpu_list(&list_b);
+
+	__atomic_store_n(&args->percpu_list_ptr, (intptr_t)&list_a, __ATOMIC_RELEASE);
+
+	while (!__atomic_load_n(&args->stop, __ATOMIC_ACQUIRE)) {
+		/* list_a is "active". */
+		cpu_a = rand() % CPU_SETSIZE;
+		/*
+		 * As list_b is "inactive", we should never see changes
+		 * to list_b.
+		 */
+		if (expect_b != __atomic_load_n(&list_b.c[cpu_b].head->data, __ATOMIC_ACQUIRE)) {
+			fprintf(stderr, "Membarrier test failed\n");
+			abort();
+		}
+
+		/* Make list_b "active". */
+		__atomic_store_n(&args->percpu_list_ptr, (intptr_t)&list_b, __ATOMIC_RELEASE);
+		if (rseq_membarrier_expedited(cpu_a) &&
+				errno != ENXIO /* missing CPU */) {
+			perror("sys_membarrier");
+			abort();
+		}
+		/*
+		 * Cpu A should now only modify list_b, so the values
+		 * in list_a should be stable.
+		 */
+		expect_a = __atomic_load_n(&list_a.c[cpu_a].head->data, __ATOMIC_ACQUIRE);
+
+		cpu_b = rand() % CPU_SETSIZE;
+		/*
+		 * As list_a is "inactive", we should never see changes
+		 * to list_a.
+		 */
+		if (expect_a != __atomic_load_n(&list_a.c[cpu_a].head->data, __ATOMIC_ACQUIRE)) {
+			fprintf(stderr, "Membarrier test failed\n");
+			abort();
+		}
+
+		/* Make list_a "active". */
+		__atomic_store_n(&args->percpu_list_ptr, (intptr_t)&list_a, __ATOMIC_RELEASE);
+		if (rseq_membarrier_expedited(cpu_b) &&
+				errno != ENXIO /* missing CPU*/) {
+			perror("sys_membarrier");
+			abort();
+		}
+		/* Remember a value from list_b. */
+		expect_b = __atomic_load_n(&list_b.c[cpu_b].head->data, __ATOMIC_ACQUIRE);
+	}
+
+	test_membarrier_free_percpu_list(&list_a);
+	test_membarrier_free_percpu_list(&list_b);
+
+	if (rseq_unregister_current_thread()) {
+		fprintf(stderr, "Error: rseq_unregister_current_thread(...) failed(%d): %s\n",
+			errno, strerror(errno));
+		abort();
+	}
+	return NULL;
+}
+
+void test_membarrier(void)
+{
+	const int num_threads = opt_threads;
+	struct test_membarrier_thread_args thread_args;
+	pthread_t worker_threads[num_threads];
+	pthread_t manager_thread;
+	int i, ret;
+
+	if (sys_membarrier(MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED_RSEQ, 0, 0)) {
+		perror("sys_membarrier");
+		abort();
+	}
+
+	thread_args.stop = 0;
+	thread_args.percpu_list_ptr = 0;
+	ret = pthread_create(&manager_thread, NULL,
+			test_membarrier_manager_thread, &thread_args);
+	if (ret) {
+		errno = ret;
+		perror("pthread_create");
+		abort();
+	}
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_create(&worker_threads[i], NULL,
+				test_membarrier_worker_thread, &thread_args);
+		if (ret) {
+			errno = ret;
+			perror("pthread_create");
+			abort();
+		}
+	}
+
+
+	for (i = 0; i < num_threads; i++) {
+		ret = pthread_join(worker_threads[i], NULL);
+		if (ret) {
+			errno = ret;
+			perror("pthread_join");
+			abort();
+		}
+	}
+
+	__atomic_store_n(&thread_args.stop, 1, __ATOMIC_RELEASE);
+	ret = pthread_join(manager_thread, NULL);
+	if (ret) {
+		errno = ret;
+		perror("pthread_join");
+		abort();
+	}
+}
+#else /* TEST_MEMBARRIER */
+void test_membarrier(void)
+{
+	fprintf(stderr, "rseq_offset_deref_addv is not implemented on this architecture. "
+			"Skipping membarrier test.\n");
+}
+#endif
+
+static void show_usage(int argc, char **argv)
+{
+	printf("Usage : %s <OPTIONS>\n",
+		argv[0]);
+	printf("OPTIONS:\n");
+	printf("	[-1 loops] Number of loops for delay injection 1\n");
+	printf("	[-2 loops] Number of loops for delay injection 2\n");
+	printf("	[-3 loops] Number of loops for delay injection 3\n");
+	printf("	[-4 loops] Number of loops for delay injection 4\n");
+	printf("	[-5 loops] Number of loops for delay injection 5\n");
+	printf("	[-6 loops] Number of loops for delay injection 6\n");
+	printf("	[-7 loops] Number of loops for delay injection 7 (-1 to enable -m)\n");
+	printf("	[-8 loops] Number of loops for delay injection 8 (-1 to enable -m)\n");
+	printf("	[-9 loops] Number of loops for delay injection 9 (-1 to enable -m)\n");
+	printf("	[-m N] Yield/sleep/kill every modulo N (default 0: disabled) (>= 0)\n");
+	printf("	[-y] Yield\n");
+	printf("	[-k] Kill thread with signal\n");
+	printf("	[-s S] S: =0: disabled (default), >0: sleep time (ms)\n");
+	printf("	[-t N] Number of threads (default 200)\n");
+	printf("	[-r N] Number of repetitions per thread (default 5000)\n");
+	printf("	[-d] Disable rseq system call (no initialization)\n");
+	printf("	[-D M] Disable rseq for each M threads\n");
+	printf("	[-T test] Choose test: (s)pinlock, (l)ist, (b)uffer, (m)emcpy, (i)ncrement, membarrie(r)\n");
+	printf("	[-M] Push into buffer and memcpy buffer with memory barriers.\n");
+	printf("	[-v] Verbose output.\n");
+	printf("	[-h] Show this help.\n");
+	printf("\n");
+}
+
+int main(int argc, char **argv)
+{
+	int i;
+
+	for (i = 1; i < argc; i++) {
+		if (argv[i][0] != '-')
+			continue;
+		switch (argv[i][1]) {
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+		case '5':
+		case '6':
+		case '7':
+		case '8':
+		case '9':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			loop_cnt[argv[i][1] - '0'] = atol(argv[i + 1]);
+			i++;
+			break;
+		case 'm':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_modulo = atol(argv[i + 1]);
+			if (opt_modulo < 0) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 's':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_sleep = atol(argv[i + 1]);
+			if (opt_sleep < 0) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 'y':
+			opt_yield = 1;
+			break;
+		case 'k':
+			opt_signal = 1;
+			break;
+		case 'd':
+			opt_disable_rseq = 1;
+			break;
+		case 'D':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_disable_mod = atol(argv[i + 1]);
+			if (opt_disable_mod < 0) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 't':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_threads = atol(argv[i + 1]);
+			if (opt_threads < 0) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 'r':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_reps = atoll(argv[i + 1]);
+			if (opt_reps < 0) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 'h':
+			show_usage(argc, argv);
+			goto end;
+		case 'T':
+			if (argc < i + 2) {
+				show_usage(argc, argv);
+				goto error;
+			}
+			opt_test = *argv[i + 1];
+			switch (opt_test) {
+			case 's':
+			case 'l':
+			case 'i':
+			case 'b':
+			case 'm':
+			case 'r':
+				break;
+			default:
+				show_usage(argc, argv);
+				goto error;
+			}
+			i++;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 'M':
+			opt_mo = RSEQ_MO_RELEASE;
+			break;
+		default:
+			show_usage(argc, argv);
+			goto error;
+		}
+	}
+
+	loop_cnt_1 = loop_cnt[1];
+	loop_cnt_2 = loop_cnt[2];
+	loop_cnt_3 = loop_cnt[3];
+	loop_cnt_4 = loop_cnt[4];
+	loop_cnt_5 = loop_cnt[5];
+	loop_cnt_6 = loop_cnt[6];
+
+	if (set_signal_handler())
+		goto error;
+
+	if (!opt_disable_rseq && rseq_register_current_thread())
+		goto error;
+	if (!opt_disable_rseq && !rseq_validate_cpu_id()) {
+		fprintf(stderr, "Error: cpu id getter unavailable\n");
+		goto error;
+	}
+	switch (opt_test) {
+	case 's':
+		printf_verbose("spinlock\n");
+		test_percpu_spinlock();
+		break;
+	case 'l':
+		printf_verbose("linked list\n");
+		test_percpu_list();
+		break;
+	case 'b':
+		printf_verbose("buffer\n");
+		test_percpu_buffer();
+		break;
+	case 'm':
+		printf_verbose("memcpy buffer\n");
+		test_percpu_memcpy_buffer();
+		break;
+	case 'i':
+		printf_verbose("counter increment\n");
+		test_percpu_inc();
+		break;
+	case 'r':
+		printf_verbose("membarrier\n");
+		test_membarrier();
+		break;
+	}
+	if (!opt_disable_rseq && rseq_unregister_current_thread())
+		abort();
+end:
+	return 0;
+
+error:
+	return -1;
+}
diff --git a/tools/testing/selftests/rseq/rseq-abi.h b/tools/testing/selftests/rseq/rseq-abi.h
new file mode 100644
index 000000000000..fb4ec8a75dd4
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-abi.h
@@ -0,0 +1,173 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+#ifndef _RSEQ_ABI_H
+#define _RSEQ_ABI_H
+
+/*
+ * rseq-abi.h
+ *
+ * Restartable sequences system call API
+ *
+ * Copyright (c) 2015-2022 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+enum rseq_abi_cpu_id_state {
+	RSEQ_ABI_CPU_ID_UNINITIALIZED			= -1,
+	RSEQ_ABI_CPU_ID_REGISTRATION_FAILED		= -2,
+};
+
+enum rseq_abi_flags {
+	RSEQ_ABI_FLAG_UNREGISTER = (1 << 0),
+};
+
+enum rseq_abi_cs_flags_bit {
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT	= 0,
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT	= 1,
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT	= 2,
+};
+
+enum rseq_abi_cs_flags {
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_PREEMPT	=
+		(1U << RSEQ_ABI_CS_FLAG_NO_RESTART_ON_PREEMPT_BIT),
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_SIGNAL	=
+		(1U << RSEQ_ABI_CS_FLAG_NO_RESTART_ON_SIGNAL_BIT),
+	RSEQ_ABI_CS_FLAG_NO_RESTART_ON_MIGRATE	=
+		(1U << RSEQ_ABI_CS_FLAG_NO_RESTART_ON_MIGRATE_BIT),
+};
+
+/*
+ * struct rseq_abi_cs is aligned on 4 * 8 bytes to ensure it is always
+ * contained within a single cache-line. It is usually declared as
+ * link-time constant data.
+ */
+struct rseq_abi_cs {
+	/* Version of this structure. */
+	__u32 version;
+	/* enum rseq_abi_cs_flags */
+	__u32 flags;
+	__u64 start_ip;
+	/* Offset from start_ip. */
+	__u64 post_commit_offset;
+	__u64 abort_ip;
+} __attribute__((aligned(4 * sizeof(__u64))));
+
+/*
+ * struct rseq_abi is aligned on 4 * 8 bytes to ensure it is always
+ * contained within a single cache-line.
+ *
+ * A single struct rseq_abi per thread is allowed.
+ */
+struct rseq_abi {
+	/*
+	 * Restartable sequences cpu_id_start field. Updated by the
+	 * kernel. Read by user-space with single-copy atomicity
+	 * semantics. This field should only be read by the thread which
+	 * registered this data structure. Aligned on 32-bit. Always
+	 * contains a value in the range of possible CPUs, although the
+	 * value may not be the actual current CPU (e.g. if rseq is not
+	 * initialized). This CPU number value should always be compared
+	 * against the value of the cpu_id field before performing a rseq
+	 * commit or returning a value read from a data structure indexed
+	 * using the cpu_id_start value.
+	 */
+	__u32 cpu_id_start;
+	/*
+	 * Restartable sequences cpu_id field. Updated by the kernel.
+	 * Read by user-space with single-copy atomicity semantics. This
+	 * field should only be read by the thread which registered this
+	 * data structure. Aligned on 32-bit. Values
+	 * RSEQ_CPU_ID_UNINITIALIZED and RSEQ_CPU_ID_REGISTRATION_FAILED
+	 * have a special semantic: the former means "rseq uninitialized",
+	 * and latter means "rseq initialization failed". This value is
+	 * meant to be read within rseq critical sections and compared
+	 * with the cpu_id_start value previously read, before performing
+	 * the commit instruction, or read and compared with the
+	 * cpu_id_start value before returning a value loaded from a data
+	 * structure indexed using the cpu_id_start value.
+	 */
+	__u32 cpu_id;
+	/*
+	 * Restartable sequences rseq_cs field.
+	 *
+	 * Contains NULL when no critical section is active for the current
+	 * thread, or holds a pointer to the currently active struct rseq_cs.
+	 *
+	 * Updated by user-space, which sets the address of the currently
+	 * active rseq_cs at the beginning of assembly instruction sequence
+	 * block, and set to NULL by the kernel when it restarts an assembly
+	 * instruction sequence block, as well as when the kernel detects that
+	 * it is preempting or delivering a signal outside of the range
+	 * targeted by the rseq_cs. Also needs to be set to NULL by user-space
+	 * before reclaiming memory that contains the targeted struct rseq_cs.
+	 *
+	 * Read and set by the kernel. Set by user-space with single-copy
+	 * atomicity semantics. This field should only be updated by the
+	 * thread which registered this data structure. Aligned on 64-bit.
+	 */
+	union {
+		__u64 ptr64;
+
+		/*
+		 * The "arch" field provides architecture accessor for
+		 * the ptr field based on architecture pointer size and
+		 * endianness.
+		 */
+		struct {
+#ifdef __LP64__
+			__u64 ptr;
+#elif defined(__BYTE_ORDER) ? (__BYTE_ORDER == __BIG_ENDIAN) : defined(__BIG_ENDIAN)
+			__u32 padding;		/* Initialized to zero. */
+			__u32 ptr;
+#else
+			__u32 ptr;
+			__u32 padding;		/* Initialized to zero. */
+#endif
+		} arch;
+	} rseq_cs;
+
+	/*
+	 * Restartable sequences flags field.
+	 *
+	 * This field should only be updated by the thread which
+	 * registered this data structure. Read by the kernel.
+	 * Mainly used for single-stepping through rseq critical sections
+	 * with debuggers.
+	 *
+	 * - RSEQ_ABI_CS_FLAG_NO_RESTART_ON_PREEMPT
+	 *     Inhibit instruction sequence block restart on preemption
+	 *     for this thread.
+	 * - RSEQ_ABI_CS_FLAG_NO_RESTART_ON_SIGNAL
+	 *     Inhibit instruction sequence block restart on signal
+	 *     delivery for this thread.
+	 * - RSEQ_ABI_CS_FLAG_NO_RESTART_ON_MIGRATE
+	 *     Inhibit instruction sequence block restart on migration for
+	 *     this thread.
+	 */
+	__u32 flags;
+
+	/*
+	 * Restartable sequences node_id field. Updated by the kernel. Read by
+	 * user-space with single-copy atomicity semantics. This field should
+	 * only be read by the thread which registered this data structure.
+	 * Aligned on 32-bit. Contains the current NUMA node ID.
+	 */
+	__u32 node_id;
+
+	/*
+	 * Restartable sequences mm_cid field. Updated by the kernel. Read by
+	 * user-space with single-copy atomicity semantics. This field should
+	 * only be read by the thread which registered this data structure.
+	 * Aligned on 32-bit. Contains the current thread's concurrency ID
+	 * (allocated uniquely within a memory map).
+	 */
+	__u32 mm_cid;
+
+	/*
+	 * Flexible array member at end of structure, after last feature field.
+	 */
+	char end[];
+} __attribute__((aligned(4 * sizeof(__u64))));
+
+#endif /* _RSEQ_ABI_H */
diff --git a/tools/testing/selftests/rseq/rseq-arm-bits.h b/tools/testing/selftests/rseq/rseq-arm-bits.h
new file mode 100644
index 000000000000..4f03cb395462
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-arm-bits.h
@@ -0,0 +1,505 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-arm-bits.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[error2]\n\t"
+#endif
+		/* final store */
+		"str %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expectnot], r0\n\t"
+		"beq %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		"ldr r0, %[v]\n\t"
+		"cmp %[expectnot], r0\n\t"
+		"beq %l[error2]\n\t"
+#endif
+		"str r0, %[load]\n\t"
+		"add r0, %[voffp]\n\t"
+		"ldr r0, [r0]\n\t"
+		/* final store */
+		"str r0, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"Ir" (voffp),
+		  [load]		"m" (*load)
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+#endif
+		"ldr r0, %[v]\n\t"
+		"add r0, %[count]\n\t"
+		/* final store */
+		"str r0, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [count]		"Ir" (count)
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+		"ldr r0, %[v2]\n\t"
+		"cmp %[expect2], r0\n\t"
+		"bne %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[error2]\n\t"
+		"ldr r0, %[v2]\n\t"
+		"cmp %[expect2], r0\n\t"
+		"bne %l[error3]\n\t"
+#endif
+		/* final store */
+		"str %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne %l[error2]\n\t"
+#endif
+		/* try store */
+		"str %[newv2], %[v2]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"dmb\n\t"	/* full mb provides store-release */
+#endif
+		/* final store */
+		"str %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	uint32_t rseq_scratch[3];
+
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		"str %[src], %[rseq_scratch0]\n\t"
+		"str %[dst], %[rseq_scratch1]\n\t"
+		"str %[len], %[rseq_scratch2]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne 5f\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 6f)
+		"ldr r0, %[v]\n\t"
+		"cmp %[expect], r0\n\t"
+		"bne 7f\n\t"
+#endif
+		/* try memcpy */
+		"cmp %[len], #0\n\t" \
+		"beq 333f\n\t" \
+		"222:\n\t" \
+		"ldrb %%r0, [%[src]]\n\t" \
+		"strb %%r0, [%[dst]]\n\t" \
+		"adds %[src], #1\n\t" \
+		"adds %[dst], #1\n\t" \
+		"subs %[len], #1\n\t" \
+		"bne 222b\n\t" \
+		"333:\n\t" \
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"dmb\n\t"	/* full mb provides store-release */
+#endif
+		/* final store */
+		"str %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		"ldr %[len], %[rseq_scratch2]\n\t"
+		"ldr %[dst], %[rseq_scratch1]\n\t"
+		"ldr %[src], %[rseq_scratch0]\n\t"
+		"b 8f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4,
+				      /* teardown */
+				      "ldr %[len], %[rseq_scratch2]\n\t"
+				      "ldr %[dst], %[rseq_scratch1]\n\t"
+				      "ldr %[src], %[rseq_scratch0]\n\t",
+				      abort, 1b, 2b, 4f)
+		RSEQ_ASM_DEFINE_CMPFAIL(5,
+					/* teardown */
+					"ldr %[len], %[rseq_scratch2]\n\t"
+					"ldr %[dst], %[rseq_scratch1]\n\t"
+					"ldr %[src], %[rseq_scratch0]\n\t",
+					cmpfail)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_CMPFAIL(6,
+					/* teardown */
+					"ldr %[len], %[rseq_scratch2]\n\t"
+					"ldr %[dst], %[rseq_scratch1]\n\t"
+					"ldr %[src], %[rseq_scratch0]\n\t",
+					error1)
+		RSEQ_ASM_DEFINE_CMPFAIL(7,
+					/* teardown */
+					"ldr %[len], %[rseq_scratch2]\n\t"
+					"ldr %[dst], %[rseq_scratch1]\n\t"
+					"ldr %[src], %[rseq_scratch0]\n\t",
+					error2)
+#endif
+		"8:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len),
+		  [rseq_scratch0]	"m" (rseq_scratch[0]),
+		  [rseq_scratch1]	"m" (rseq_scratch[1]),
+		  [rseq_scratch2]	"m" (rseq_scratch[2])
+		  RSEQ_INJECT_INPUT
+		: "r0", "memory", "cc"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-arm.h b/tools/testing/selftests/rseq/rseq-arm.h
new file mode 100644
index 000000000000..d887b3bbe257
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-arm.h
@@ -0,0 +1,176 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-arm.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+/*
+ * - ARM little endian
+ *
+ * RSEQ_SIG uses the udf A32 instruction with an uncommon immediate operand
+ * value 0x5de3. This traps if user-space reaches this instruction by mistake,
+ * and the uncommon operand ensures the kernel does not move the instruction
+ * pointer to attacker-controlled code on rseq abort.
+ *
+ * The instruction pattern in the A32 instruction set is:
+ *
+ * e7f5def3    udf    #24035    ; 0x5de3
+ *
+ * This translates to the following instruction pattern in the T16 instruction
+ * set:
+ *
+ * little endian:
+ * def3        udf    #243      ; 0xf3
+ * e7f5        b.n    <7f5>
+ *
+ * - ARMv6+ big endian (BE8):
+ *
+ * ARMv6+ -mbig-endian generates mixed endianness code vs data: little-endian
+ * code and big-endian data. The data value of the signature needs to have its
+ * byte order reversed to generate the trap instruction:
+ *
+ * Data: 0xf3def5e7
+ *
+ * Translates to this A32 instruction pattern:
+ *
+ * e7f5def3    udf    #24035    ; 0x5de3
+ *
+ * Translates to this T16 instruction pattern:
+ *
+ * def3        udf    #243      ; 0xf3
+ * e7f5        b.n    <7f5>
+ *
+ * - Prior to ARMv6 big endian (BE32):
+ *
+ * Prior to ARMv6, -mbig-endian generates big-endian code and data
+ * (which match), so the endianness of the data representation of the
+ * signature should not be reversed. However, the choice between BE32
+ * and BE8 is done by the linker, so we cannot know whether code and
+ * data endianness will be mixed before the linker is invoked. So rather
+ * than try to play tricks with the linker, the rseq signature is simply
+ * data (not a trap instruction) prior to ARMv6 on big endian. This is
+ * why the signature is expressed as data (.word) rather than as
+ * instruction (.inst) in assembler.
+ */
+
+#ifdef __ARMEB__
+#define RSEQ_SIG    0xf3def5e7      /* udf    #24035    ; 0x5de3 (ARMv6+) */
+#else
+#define RSEQ_SIG    0xe7f5def3      /* udf    #24035    ; 0x5de3 */
+#endif
+
+#define rseq_smp_mb()	__asm__ __volatile__ ("dmb" ::: "memory", "cc")
+#define rseq_smp_rmb()	__asm__ __volatile__ ("dmb" ::: "memory", "cc")
+#define rseq_smp_wmb()	__asm__ __volatile__ ("dmb" ::: "memory", "cc")
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_smp_mb();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_smp_mb();							\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip,	\
+				post_commit_offset, abort_ip)		\
+		".pushsection __rseq_cs, \"aw\"\n\t"			\
+		".balign 32\n\t"					\
+		__rseq_str(label) ":\n\t"					\
+		".word " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		".word " __rseq_str(start_ip) ", 0x0, " __rseq_str(post_commit_offset) ", 0x0, " __rseq_str(abort_ip) ", 0x0\n\t" \
+		".popsection\n\t"					\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"		\
+		".word " __rseq_str(label) "b, 0x0\n\t"			\
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		\
+				(post_commit_ip - start_ip), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"	\
+		".word " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) ", 0x0\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+		RSEQ_INJECT_ASM(1)					\
+		"adr r0, " __rseq_str(cs_label) "\n\t"			\
+		"str r0, %[" __rseq_str(rseq_cs) "]\n\t"		\
+		__rseq_str(label) ":\n\t"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+		RSEQ_INJECT_ASM(2)					\
+		"ldr r0, %[" __rseq_str(current_cpu_id) "]\n\t"	\
+		"cmp %[" __rseq_str(cpu_id) "], r0\n\t"		\
+		"bne " __rseq_str(label) "\n\t"
+
+#define __RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown,		\
+				abort_label, version, flags,		\
+				start_ip, post_commit_offset, abort_ip)	\
+		".balign 32\n\t"					\
+		__rseq_str(table_label) ":\n\t"				\
+		".word " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		".word " __rseq_str(start_ip) ", 0x0, " __rseq_str(post_commit_offset) ", 0x0, " __rseq_str(abort_ip) ", 0x0\n\t" \
+		".word " __rseq_str(RSEQ_SIG) "\n\t"			\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"b %l[" __rseq_str(abort_label) "]\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown, abort_label, \
+			      start_ip, post_commit_ip, abort_ip)	\
+	__RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown,		\
+				abort_label, 0x0, 0x0, start_ip,	\
+				(post_commit_ip - start_ip), abort_ip)
+
+#define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label)		\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"b %l[" __rseq_str(cmpfail_label) "]\n\t"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-arm-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-arm-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-arm64-bits.h b/tools/testing/selftests/rseq/rseq-arm64-bits.h
new file mode 100644
index 000000000000..cc7226b1efe1
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-arm64-bits.h
@@ -0,0 +1,392 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-arm64-bits.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * (C) Copyright 2018 - Will Deacon <will.deacon@arm.com>
+ */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error2])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"Qo" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error2])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		RSEQ_ASM_OP_CMPNE(v, expectnot, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		RSEQ_ASM_OP_CMPNE(v, expectnot, %l[error2])
+#endif
+		RSEQ_ASM_OP_R_LOAD(v)
+		RSEQ_ASM_OP_R_STORE(load)
+		RSEQ_ASM_OP_R_LOAD_OFF(voffp)
+		RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"Qo" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [load]		"Qo" (*load),
+		  [voffp]		"r" (voffp)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+#endif
+		RSEQ_ASM_OP_R_LOAD(v)
+		RSEQ_ASM_OP_R_ADD(count)
+		RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"Qo" (*v),
+		  [count]		"r" (count)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error3])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_OP_CMPEQ(v2, expect2, %l[cmpfail])
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+		RSEQ_ASM_OP_CMPEQ(v2, expect2, %l[error3])
+#endif
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"Qo" (*v),
+		  [expect]		"r" (expect),
+		  [v2]			"Qo" (*v2),
+		  [expect2]		"r" (expect2),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error2])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		RSEQ_ASM_OP_STORE(newv2, v2)
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
+#else
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+#endif
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [expect]		"r" (expect),
+		  [v]			"Qo" (*v),
+		  [newv]		"r" (newv),
+		  [v2]			"Qo" (*v2),
+		  [newv2]		"r" (newv2)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(2f, %l[error2])
+#endif
+		RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
+#else
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+#endif
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"Qo" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [expect]		"r" (expect),
+		  [v]			"Qo" (*v),
+		  [newv]		"r" (newv),
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len)
+		  RSEQ_INJECT_INPUT
+		: "memory", RSEQ_ASM_TMP_REG, RSEQ_ASM_TMP_REG_2
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-arm64.h b/tools/testing/selftests/rseq/rseq-arm64.h
new file mode 100644
index 000000000000..21e1626a7235
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-arm64.h
@@ -0,0 +1,235 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-arm64.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * (C) Copyright 2018 - Will Deacon <will.deacon@arm.com>
+ */
+
+/*
+ * aarch64 -mbig-endian generates mixed endianness code vs data:
+ * little-endian code and big-endian data. Ensure the RSEQ_SIG signature
+ * matches code endianness.
+ */
+#define RSEQ_SIG_CODE	0xd428bc00	/* BRK #0x45E0.  */
+
+#ifdef __AARCH64EB__
+#define RSEQ_SIG_DATA	0x00bc28d4	/* BRK #0x45E0.  */
+#else
+#define RSEQ_SIG_DATA	RSEQ_SIG_CODE
+#endif
+
+#define RSEQ_SIG	RSEQ_SIG_DATA
+
+#define rseq_smp_mb()	__asm__ __volatile__ ("dmb ish" ::: "memory")
+#define rseq_smp_rmb()	__asm__ __volatile__ ("dmb ishld" ::: "memory")
+#define rseq_smp_wmb()	__asm__ __volatile__ ("dmb ishst" ::: "memory")
+
+#define rseq_smp_load_acquire(p)						\
+__extension__ ({								\
+	union { rseq_unqual_scalar_typeof(*(p)) __val; char __c[sizeof(*(p))]; } __u; \
+	switch (sizeof(*(p))) {							\
+	case 1:									\
+		__asm__ __volatile__ ("ldarb %w0, %1"				\
+			: "=r" (*(__u8 *)__u.__c)				\
+			: "Q" (*(p)) : "memory");				\
+		break;								\
+	case 2:									\
+		__asm__ __volatile__ ("ldarh %w0, %1"				\
+			: "=r" (*(__u16 *)__u.__c)				\
+			: "Q" (*(p)) : "memory");				\
+		break;								\
+	case 4:									\
+		__asm__ __volatile__ ("ldar %w0, %1"				\
+			: "=r" (*(__u32 *)__u.__c)				\
+			: "Q" (*(p)) : "memory");				\
+		break;								\
+	case 8:									\
+		__asm__ __volatile__ ("ldar %0, %1"				\
+			: "=r" (*(__u64 *)__u.__c)				\
+			: "Q" (*(p)) : "memory");				\
+		break;								\
+	}									\
+	(rseq_unqual_scalar_typeof(*(p)))__u.__val;				\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)						\
+do {										\
+	union { rseq_unqual_scalar_typeof(*(p)) __val; char __c[sizeof(*(p))]; } __u = \
+		{ .__val = (rseq_unqual_scalar_typeof(*(p))) (v) };		\
+	switch (sizeof(*(p))) {							\
+	case 1:									\
+		__asm__ __volatile__ ("stlrb %w1, %0"				\
+				: "=Q" (*(p))					\
+				: "r" (*(__u8 *)__u.__c)			\
+				: "memory");					\
+		break;								\
+	case 2:									\
+		__asm__ __volatile__ ("stlrh %w1, %0"				\
+				: "=Q" (*(p))					\
+				: "r" (*(__u16 *)__u.__c)			\
+				: "memory");					\
+		break;								\
+	case 4:									\
+		__asm__ __volatile__ ("stlr %w1, %0"				\
+				: "=Q" (*(p))					\
+				: "r" (*(__u32 *)__u.__c)			\
+				: "memory");					\
+		break;								\
+	case 8:									\
+		__asm__ __volatile__ ("stlr %1, %0"				\
+				: "=Q" (*(p))					\
+				: "r" (*(__u64 *)__u.__c)			\
+				: "memory");					\
+		break;								\
+	}									\
+} while (0)
+
+#define RSEQ_ASM_TMP_REG32	"w15"
+#define RSEQ_ASM_TMP_REG	"x15"
+#define RSEQ_ASM_TMP_REG_2	"x14"
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip,		\
+				post_commit_offset, abort_ip)			\
+	"	.pushsection	__rseq_cs, \"aw\"\n"				\
+	"	.balign	32\n"							\
+	__rseq_str(label) ":\n"							\
+	"	.long	" __rseq_str(version) ", " __rseq_str(flags) "\n"	\
+	"	.quad	" __rseq_str(start_ip) ", "				\
+			  __rseq_str(post_commit_offset) ", "			\
+			  __rseq_str(abort_ip) "\n"				\
+	"	.popsection\n\t"						\
+	"	.pushsection __rseq_cs_ptr_array, \"aw\"\n"				\
+	"	.quad " __rseq_str(label) "b\n"					\
+	"	.popsection\n"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip)	\
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,			\
+				(post_commit_ip - start_ip), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)				\
+	"	.pushsection __rseq_exit_point_array, \"aw\"\n"			\
+	"	.quad " __rseq_str(start_ip) ", " __rseq_str(exit_ip) "\n"	\
+	"	.popsection\n"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)			\
+	RSEQ_INJECT_ASM(1)							\
+	"	adrp	" RSEQ_ASM_TMP_REG ", " __rseq_str(cs_label) "\n"	\
+	"	add	" RSEQ_ASM_TMP_REG ", " RSEQ_ASM_TMP_REG		\
+			", :lo12:" __rseq_str(cs_label) "\n"			\
+	"	str	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(rseq_cs) "]\n"	\
+	__rseq_str(label) ":\n"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, abort_label)				\
+	"	b	222f\n"							\
+	"	.inst 	"	__rseq_str(RSEQ_SIG_CODE) "\n"			\
+	__rseq_str(label) ":\n"							\
+	"	b	%l[" __rseq_str(abort_label) "]\n"			\
+	"222:\n"
+
+#define RSEQ_ASM_OP_STORE(value, var)						\
+	"	str	%[" __rseq_str(value) "], %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_STORE_RELEASE(value, var)					\
+	"	stlr	%[" __rseq_str(value) "], %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE(value, var, post_commit_label)			\
+	RSEQ_ASM_OP_STORE(value, var)						\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE_RELEASE(value, var, post_commit_label)		\
+	RSEQ_ASM_OP_STORE_RELEASE(value, var)					\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_CMPEQ(var, expect, label)					\
+	"	ldr	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(var) "]\n"		\
+	"	sub	" RSEQ_ASM_TMP_REG ", " RSEQ_ASM_TMP_REG		\
+			", %[" __rseq_str(expect) "]\n"				\
+	"	cbnz	" RSEQ_ASM_TMP_REG ", " __rseq_str(label) "\n"
+
+#define RSEQ_ASM_OP_CMPEQ32(var, expect, label)					\
+	"	ldr	" RSEQ_ASM_TMP_REG32 ", %[" __rseq_str(var) "]\n"	\
+	"	sub	" RSEQ_ASM_TMP_REG32 ", " RSEQ_ASM_TMP_REG32		\
+			", %w[" __rseq_str(expect) "]\n"			\
+	"	cbnz	" RSEQ_ASM_TMP_REG32 ", " __rseq_str(label) "\n"
+
+#define RSEQ_ASM_OP_CMPNE(var, expect, label)					\
+	"	ldr	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(var) "]\n"		\
+	"	sub	" RSEQ_ASM_TMP_REG ", " RSEQ_ASM_TMP_REG		\
+			", %[" __rseq_str(expect) "]\n"				\
+	"	cbz	" RSEQ_ASM_TMP_REG ", " __rseq_str(label) "\n"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)			\
+	RSEQ_INJECT_ASM(2)							\
+	RSEQ_ASM_OP_CMPEQ32(current_cpu_id, cpu_id, label)
+
+#define RSEQ_ASM_OP_R_LOAD(var)							\
+	"	ldr	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_R_STORE(var)						\
+	"	str	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_R_LOAD_OFF(offset)						\
+	"	ldr	" RSEQ_ASM_TMP_REG ", [" RSEQ_ASM_TMP_REG		\
+			", %[" __rseq_str(offset) "]]\n"
+
+#define RSEQ_ASM_OP_R_ADD(count)						\
+	"	add	" RSEQ_ASM_TMP_REG ", " RSEQ_ASM_TMP_REG		\
+			", %[" __rseq_str(count) "]\n"
+
+#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label)			\
+	"	str	" RSEQ_ASM_TMP_REG ", %[" __rseq_str(var) "]\n"		\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)					\
+	"	cbz	%[" __rseq_str(len) "], 333f\n"				\
+	"	mov	" RSEQ_ASM_TMP_REG_2 ", %[" __rseq_str(len) "]\n"	\
+	"222:	sub	" RSEQ_ASM_TMP_REG_2 ", " RSEQ_ASM_TMP_REG_2 ", #1\n"	\
+	"	ldrb	" RSEQ_ASM_TMP_REG32 ", [%[" __rseq_str(src) "]"	\
+			", " RSEQ_ASM_TMP_REG_2 "]\n"				\
+	"	strb	" RSEQ_ASM_TMP_REG32 ", [%[" __rseq_str(dst) "]"	\
+			", " RSEQ_ASM_TMP_REG_2 "]\n"				\
+	"	cbnz	" RSEQ_ASM_TMP_REG_2 ", 222b\n"				\
+	"333:\n"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm64-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-arm64-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm64-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-arm64-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-arm64-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-bits-reset.h b/tools/testing/selftests/rseq/rseq-bits-reset.h
new file mode 100644
index 000000000000..e8655089f9cb
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-bits-reset.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-bits-reset.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#undef RSEQ_TEMPLATE_IDENTIFIER
+#undef RSEQ_TEMPLATE_CPU_ID_FIELD
+#undef RSEQ_TEMPLATE_CPU_ID_OFFSET
+#undef RSEQ_TEMPLATE_SUFFIX
diff --git a/tools/testing/selftests/rseq/rseq-bits-template.h b/tools/testing/selftests/rseq/rseq-bits-template.h
new file mode 100644
index 000000000000..65698d6a6cf9
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-bits-template.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-bits-template.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifdef RSEQ_TEMPLATE_CPU_ID
+# define RSEQ_TEMPLATE_CPU_ID_OFFSET	RSEQ_CPU_ID_OFFSET
+# define RSEQ_TEMPLATE_CPU_ID_FIELD	cpu_id
+# ifdef RSEQ_TEMPLATE_MO_RELEASE
+#  define RSEQ_TEMPLATE_SUFFIX		_release_cpu_id
+# elif defined (RSEQ_TEMPLATE_MO_RELAXED)
+#  define RSEQ_TEMPLATE_SUFFIX		_relaxed_cpu_id
+# else
+#  error "Never use <rseq-bits-template.h> directly; include <rseq.h> instead."
+# endif
+#elif defined(RSEQ_TEMPLATE_MM_CID)
+# define RSEQ_TEMPLATE_CPU_ID_OFFSET	RSEQ_MM_CID_OFFSET
+# define RSEQ_TEMPLATE_CPU_ID_FIELD	mm_cid
+# ifdef RSEQ_TEMPLATE_MO_RELEASE
+#  define RSEQ_TEMPLATE_SUFFIX		_release_mm_cid
+# elif defined (RSEQ_TEMPLATE_MO_RELAXED)
+#  define RSEQ_TEMPLATE_SUFFIX		_relaxed_mm_cid
+# else
+#  error "Never use <rseq-bits-template.h> directly; include <rseq.h> instead."
+# endif
+#elif defined (RSEQ_TEMPLATE_CPU_ID_NONE)
+# ifdef RSEQ_TEMPLATE_MO_RELEASE
+#  define RSEQ_TEMPLATE_SUFFIX		_release
+# elif defined (RSEQ_TEMPLATE_MO_RELAXED)
+#  define RSEQ_TEMPLATE_SUFFIX		_relaxed
+# else
+#  error "Never use <rseq-bits-template.h> directly; include <rseq.h> instead."
+# endif
+#else
+# error "Never use <rseq-bits-template.h> directly; include <rseq.h> instead."
+#endif
+
+#define RSEQ_TEMPLATE_IDENTIFIER(x)	RSEQ_COMBINE_TOKENS(x, RSEQ_TEMPLATE_SUFFIX)
+
diff --git a/tools/testing/selftests/rseq/rseq-generic-thread-pointer.h b/tools/testing/selftests/rseq/rseq-generic-thread-pointer.h
new file mode 100644
index 000000000000..38c584661571
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-generic-thread-pointer.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+/*
+ * rseq-generic-thread-pointer.h
+ *
+ * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef _RSEQ_GENERIC_THREAD_POINTER
+#define _RSEQ_GENERIC_THREAD_POINTER
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Use gcc builtin thread pointer. */
+static inline void *rseq_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/tools/testing/selftests/rseq/rseq-mips-bits.h b/tools/testing/selftests/rseq/rseq-mips-bits.h
new file mode 100644
index 000000000000..6c48af4d0944
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-mips-bits.h
@@ -0,0 +1,462 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * Author: Paul Burton <paul.burton@mips.com>
+ * (C) Copyright 2018 MIPS Tech LLC
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[error2]\n\t"
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " $4, %[v]\n\t"
+		"beq $4, %[expectnot], %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_L " $4, %[v]\n\t"
+		"beq $4, %[expectnot], %l[error2]\n\t"
+#endif
+		LONG_S " $4, %[load]\n\t"
+		LONG_ADDI " $4, %[voffp]\n\t"
+		LONG_L " $4, 0($4)\n\t"
+		/* final store */
+		LONG_S " $4, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"Ir" (voffp),
+		  [load]		"m" (*load)
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+#endif
+		LONG_L " $4, %[v]\n\t"
+		LONG_ADDI " $4, %[count]\n\t"
+		/* final store */
+		LONG_S " $4, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [count]		"Ir" (count)
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+		LONG_L " $4, %[v2]\n\t"
+		"bne $4, %[expect2], %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[error2]\n\t"
+		LONG_L " $4, %[v2]\n\t"
+		"bne $4, %[expect2], %l[error3]\n\t"
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], %l[error2]\n\t"
+#endif
+		/* try store */
+		LONG_S " %[newv2], %[v2]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"sync\n\t"	/* full sync provides store-release */
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		"b 5f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4, "", abort, 1b, 2b, 4f)
+		"5:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	uintptr_t rseq_scratch[3];
+
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(9, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		LONG_S " %[src], %[rseq_scratch0]\n\t"
+		LONG_S "  %[dst], %[rseq_scratch1]\n\t"
+		LONG_S " %[len], %[rseq_scratch2]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3f, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], 5f\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 6f)
+		LONG_L " $4, %[v]\n\t"
+		"bne $4, %[expect], 7f\n\t"
+#endif
+		/* try memcpy */
+		"beqz %[len], 333f\n\t" \
+		"222:\n\t" \
+		"lb   $4, 0(%[src])\n\t" \
+		"sb   $4, 0(%[dst])\n\t" \
+		LONG_ADDI " %[src], 1\n\t" \
+		LONG_ADDI " %[dst], 1\n\t" \
+		LONG_ADDI " %[len], -1\n\t" \
+		"bnez %[len], 222b\n\t" \
+		"333:\n\t" \
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"sync\n\t"	/* full sync provides store-release */
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		LONG_L " %[len], %[rseq_scratch2]\n\t"
+		LONG_L " %[dst], %[rseq_scratch1]\n\t"
+		LONG_L " %[src], %[rseq_scratch0]\n\t"
+		"b 8f\n\t"
+		RSEQ_ASM_DEFINE_ABORT(3, 4,
+				      /* teardown */
+				      LONG_L " %[len], %[rseq_scratch2]\n\t"
+				      LONG_L " %[dst], %[rseq_scratch1]\n\t"
+				      LONG_L " %[src], %[rseq_scratch0]\n\t",
+				      abort, 1b, 2b, 4f)
+		RSEQ_ASM_DEFINE_CMPFAIL(5,
+					/* teardown */
+					LONG_L " %[len], %[rseq_scratch2]\n\t"
+					LONG_L " %[dst], %[rseq_scratch1]\n\t"
+					LONG_L " %[src], %[rseq_scratch0]\n\t",
+					cmpfail)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_CMPFAIL(6,
+					/* teardown */
+					LONG_L " %[len], %[rseq_scratch2]\n\t"
+					LONG_L " %[dst], %[rseq_scratch1]\n\t"
+					LONG_L " %[src], %[rseq_scratch0]\n\t",
+					error1)
+		RSEQ_ASM_DEFINE_CMPFAIL(7,
+					/* teardown */
+					LONG_L " %[len], %[rseq_scratch2]\n\t"
+					LONG_L " %[dst], %[rseq_scratch1]\n\t"
+					LONG_L " %[src], %[rseq_scratch0]\n\t",
+					error2)
+#endif
+		"8:\n\t"
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len),
+		  [rseq_scratch0]	"m" (rseq_scratch[0]),
+		  [rseq_scratch1]	"m" (rseq_scratch[1]),
+		  [rseq_scratch2]	"m" (rseq_scratch[2])
+		  RSEQ_INJECT_INPUT
+		: "$4", "memory"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-mips.h b/tools/testing/selftests/rseq/rseq-mips.h
new file mode 100644
index 000000000000..42ef8e946693
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-mips.h
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * Author: Paul Burton <paul.burton@mips.com>
+ * (C) Copyright 2018 MIPS Tech LLC
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+/*
+ * RSEQ_SIG uses the break instruction. The instruction pattern is:
+ *
+ * On MIPS:
+ *	0350000d        break     0x350
+ *
+ * On nanoMIPS:
+ *      00100350        break     0x350
+ *
+ * On microMIPS:
+ *      0000d407        break     0x350
+ *
+ * For nanoMIPS32 and microMIPS, the instruction stream is encoded as 16-bit
+ * halfwords, so the signature halfwords need to be swapped accordingly for
+ * little-endian.
+ */
+#if defined(__nanomips__)
+# ifdef __MIPSEL__
+#  define RSEQ_SIG	0x03500010
+# else
+#  define RSEQ_SIG	0x00100350
+# endif
+#elif defined(__mips_micromips)
+# ifdef __MIPSEL__
+#  define RSEQ_SIG	0xd4070000
+# else
+#  define RSEQ_SIG	0x0000d407
+# endif
+#elif defined(__mips__)
+# define RSEQ_SIG	0x0350000d
+#else
+/* Unknown MIPS architecture. */
+#endif
+
+#define rseq_smp_mb()	__asm__ __volatile__ ("sync" ::: "memory")
+#define rseq_smp_rmb()	rseq_smp_mb()
+#define rseq_smp_wmb()	rseq_smp_mb()
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_smp_mb();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_smp_mb();							\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#if _MIPS_SZLONG == 64
+# define LONG			".dword"
+# define LONG_LA		"dla"
+# define LONG_L			"ld"
+# define LONG_S			"sd"
+# define LONG_ADDI		"daddiu"
+# define U32_U64_PAD(x)		x
+#elif _MIPS_SZLONG == 32
+# define LONG			".word"
+# define LONG_LA		"la"
+# define LONG_L			"lw"
+# define LONG_S			"sw"
+# define LONG_ADDI		"addiu"
+# ifdef __BIG_ENDIAN
+#  define U32_U64_PAD(x)	"0x0, " x
+# else
+#  define U32_U64_PAD(x)	x ", 0x0"
+# endif
+#else
+# error unsupported _MIPS_SZLONG
+#endif
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip, \
+				post_commit_offset, abort_ip) \
+		".pushsection __rseq_cs, \"aw\"\n\t" \
+		".balign 32\n\t" \
+		__rseq_str(label) ":\n\t"					\
+		".word " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(start_ip)) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(post_commit_offset)) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(abort_ip)) "\n\t" \
+		".popsection\n\t" \
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(label) "b") "\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip, \
+				(post_commit_ip - start_ip), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip) \
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(start_ip)) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(exit_ip)) "\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs) \
+		RSEQ_INJECT_ASM(1) \
+		LONG_LA " $4, " __rseq_str(cs_label) "\n\t" \
+		LONG_S  " $4, %[" __rseq_str(rseq_cs) "]\n\t" \
+		__rseq_str(label) ":\n\t"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label) \
+		RSEQ_INJECT_ASM(2) \
+		"lw  $4, %[" __rseq_str(current_cpu_id) "]\n\t" \
+		"bne $4, %[" __rseq_str(cpu_id) "], " __rseq_str(label) "\n\t"
+
+#define __RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown, \
+				abort_label, version, flags, \
+				start_ip, post_commit_offset, abort_ip) \
+		".balign 32\n\t" \
+		__rseq_str(table_label) ":\n\t" \
+		".word " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(start_ip)) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(post_commit_offset)) "\n\t" \
+		LONG " " U32_U64_PAD(__rseq_str(abort_ip)) "\n\t" \
+		".word " __rseq_str(RSEQ_SIG) "\n\t" \
+		__rseq_str(label) ":\n\t" \
+		teardown \
+		"b %l[" __rseq_str(abort_label) "]\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown, abort_label, \
+			      start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_ABORT(table_label, label, teardown, \
+				abort_label, 0x0, 0x0, start_ip, \
+				(post_commit_ip - start_ip), abort_ip)
+
+#define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label) \
+		__rseq_str(label) ":\n\t" \
+		teardown \
+		"b %l[" __rseq_str(cmpfail_label) "]\n\t"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-mips-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-mips-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-mips-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-mips-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-mips-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-or1k-bits.h b/tools/testing/selftests/rseq/rseq-or1k-bits.h
new file mode 100644
index 000000000000..15d0e8200cd1
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-or1k-bits.h
@@ -0,0 +1,412 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv,
+				int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_FINAL_STORE(v, newv, 3)
+				  RSEQ_INJECT_ASM(5)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expect]		"r" (expect),
+				    [newv]		"r" (newv)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       off_t voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_R_LOAD(v)
+				  RSEQ_ASM_OP_R_STORE(load)
+				  RSEQ_ASM_OP_R_LOAD_OFF(voffp)
+				  RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+				  RSEQ_INJECT_ASM(5)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expectnot]		"r" (expectnot),
+				    [load]		"m" (*load),
+				    [voffp]		"Ir" (voffp)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+#endif
+				  RSEQ_ASM_OP_R_LOAD(v)
+				  RSEQ_ASM_OP_R_ADD(count)
+				  RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [count]		"r" (count)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error3]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+				  RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[error3]")
+#endif
+				  RSEQ_ASM_OP_FINAL_STORE(v, newv, 3)
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expect]		"r" (expect),
+				    [v2]		"m" (*v2),
+				    [expect2]		"r" (expect2),
+				    [newv]		"r" (newv)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2, error3
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+error3:
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
+
+/*
+ *   pval = *(ptr+off)
+ *  *pval += inc;
+ */
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, off_t off, intptr_t inc,
+				int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+#endif
+				  RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, 3)
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [ptr]		"r" (ptr),
+				    [off]		"r" (off),
+				    [inc]		"r" (inc)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_STORE(v2, newv2)
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+				  RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3)
+#else
+				  RSEQ_ASM_OP_FINAL_STORE(v, newv, 3)
+#endif
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [expect]		"r" (expect),
+				    [v]			"m" (*v),
+				    [newv]		"r" (newv),
+				    [v2]		"m" (*v2),
+				    [newv2]		"r" (newv2)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+				  RSEQ_ASM_OP_FINAL_STORE_RELEASE(v, newv, 3)
+#else
+				  RSEQ_ASM_OP_FINAL_STORE(v, newv, 3)
+#endif
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [expect]		"r" (expect),
+				    [v]			"m" (*v),
+				    [newv]		"r" (newv),
+				    [dst]		"r" (dst),
+				    [src]		"r" (src),
+				    [len]		"r" (len)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1, RSEQ_ASM_TMP_REG_2,
+				    RSEQ_ASM_TMP_REG_3, RSEQ_ASM_TMP_REG_4
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h
new file mode 100644
index 000000000000..cda740f7aff3
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-or1k-thread-pointer.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+#ifndef _RSEQ_OR1K_THREAD_POINTER
+#define _RSEQ_OR1K_THREAD_POINTER
+
+static inline void *rseq_thread_pointer(void)
+{
+	void *__thread_register;
+
+	__asm__ ("l.or %0, r10, r0" : "=r" (__thread_register));
+	return __thread_register;
+}
+
+#endif
diff --git a/tools/testing/selftests/rseq/rseq-or1k.h b/tools/testing/selftests/rseq/rseq-or1k.h
new file mode 100644
index 000000000000..9e78eebdf79a
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-or1k.h
@@ -0,0 +1,181 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+
+/*
+ * Select the instruction "l.nop 0x35" as the RSEQ_SIG.
+ */
+#define RSEQ_SIG   0x15000035
+
+#define rseq_smp_mb()	__asm__ __volatile__ ("l.msync" ::: "memory")
+#define rseq_smp_rmb()	rseq_smp_mb()
+#define rseq_smp_wmb()	rseq_smp_mb()
+#define RSEQ_ASM_TMP_REG_1	"r31"
+#define RSEQ_ASM_TMP_REG_2	"r29"
+#define RSEQ_ASM_TMP_REG_3	"r27"
+#define RSEQ_ASM_TMP_REG_4	"r25"
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_smp_mb();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_smp_mb();							\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip,	\
+				post_commit_offset, abort_ip)		\
+	".pushsection	__rseq_cs, \"aw\"\n"				\
+	".balign	32\n"						\
+	__rseq_str(label) ":\n"						\
+	".long " __rseq_str(version) ", " __rseq_str(flags) "\n"	\
+	".long 0x0, " __rseq_str(start_ip) ", "				\
+		"0x0, " __rseq_str(post_commit_offset) ", "		\
+		"0x0, " __rseq_str(abort_ip) "\n"			\
+	".popsection\n\t"						\
+	".pushsection __rseq_cs_ptr_array, \"aw\"\n"			\
+	".long 0x0, " __rseq_str(label) "b\n"				\
+	".popsection\n"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		 \
+				((post_commit_ip) - (start_ip)), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+	".pushsection __rseq_exit_point_array, \"aw\"\n"		\
+	".long 0x0, " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) "\n"	\
+	".popsection\n"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+	RSEQ_INJECT_ASM(1)						\
+	"l.movhi " RSEQ_ASM_TMP_REG_1 ", hi(" __rseq_str(cs_label) ")\n"\
+	"l.ori   " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1		\
+		", lo(" __rseq_str(cs_label) ")\n"\
+	"l.sw  %[" __rseq_str(rseq_cs) "], " RSEQ_ASM_TMP_REG_1 "\n"	\
+	__rseq_str(label) ":\n"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, abort_label)			\
+	"l.j 222f\n"							\
+	" l.nop\n"							\
+	".balign	4\n"						\
+	".long "	__rseq_str(RSEQ_SIG) "\n"			\
+	__rseq_str(label) ":\n"						\
+	"l.j %l[" __rseq_str(abort_label) "]\n"				\
+	" l.nop\n"							\
+	"222:\n"
+
+#define RSEQ_ASM_OP_STORE(var, value)					\
+	"l.sw %[" __rseq_str(var) "], %[" __rseq_str(value) "]\n"
+
+#define RSEQ_ASM_OP_CMPEQ(var, expect, label)				\
+	"l.lwz  " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"	\
+	"l.sfne " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n"	\
+	"l.bf   " __rseq_str(label) "\n"				\
+	" l.nop\n"
+
+#define RSEQ_ASM_OP_CMPNE(var, expect, label)				\
+	"l.lwz  " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"	\
+	"l.sfeq " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "]\n"	\
+	"l.bf   " __rseq_str(label) "\n"				\
+	" l.nop\n"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+	RSEQ_INJECT_ASM(2)						\
+	RSEQ_ASM_OP_CMPEQ(current_cpu_id, cpu_id, label)
+
+#define RSEQ_ASM_OP_R_LOAD(var)						\
+	"l.lwz " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_R_STORE(var)					\
+	"l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n"
+
+#define RSEQ_ASM_OP_R_LOAD_OFF(offset)					\
+	"l.lwz " RSEQ_ASM_TMP_REG_1 ", "				\
+		"%[" __rseq_str(offset) "](" RSEQ_ASM_TMP_REG_1 ")\n"
+
+#define RSEQ_ASM_OP_R_ADD(count)					\
+	"l.add " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1		\
+		", %[" __rseq_str(count) "]\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE(var, value, post_commit_label)		\
+	RSEQ_ASM_OP_STORE(var, value)					\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE_RELEASE(var, value, post_commit_label)	\
+	"l.msync\n"							\
+	RSEQ_ASM_OP_STORE(var, value)					\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label)		\
+	"l.sw %[" __rseq_str(var) "], " RSEQ_ASM_TMP_REG_1 "\n"		\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)				\
+	"l.sfeq	%[" __rseq_str(len) "], r0\n"				\
+	"l.bf 333f\n"							\
+	" l.nop\n"							\
+	"l.ori  " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(len) "], 0\n"	\
+	"l.ori  " RSEQ_ASM_TMP_REG_2 ", %[" __rseq_str(src) "], 0\n"	\
+	"l.ori  " RSEQ_ASM_TMP_REG_3 ", %[" __rseq_str(dst) "], 0\n"	\
+	"222:\n"							\
+	"l.lbz  " RSEQ_ASM_TMP_REG_4 ", 0(" RSEQ_ASM_TMP_REG_2 ")\n"	\
+	"l.sb   0(" RSEQ_ASM_TMP_REG_3 "), " RSEQ_ASM_TMP_REG_4 "\n"	\
+	"l.addi " RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 ", -1\n"	\
+	"l.addi " RSEQ_ASM_TMP_REG_2 ", " RSEQ_ASM_TMP_REG_2 ", 1\n"	\
+	"l.addi " RSEQ_ASM_TMP_REG_3 ", " RSEQ_ASM_TMP_REG_3 ", 1\n"	\
+	"l.sfne " RSEQ_ASM_TMP_REG_1 ", r0\n"				\
+	"l.bf 222b\n"							\
+	" l.nop\n"							\
+	"333:\n"
+
+#define RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, post_commit_label)	\
+	"l.ori  " RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(ptr) "], 0\n"	\
+	RSEQ_ASM_OP_R_ADD(off)						\
+	"l.lwz  " RSEQ_ASM_TMP_REG_1 ", 0(" RSEQ_ASM_TMP_REG_1 ")\n"	\
+	RSEQ_ASM_OP_R_ADD(inc)						\
+	__rseq_str(post_commit_label) ":\n"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-or1k-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-or1k-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-or1k-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-or1k-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-or1k-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-ppc-bits.h b/tools/testing/selftests/rseq/rseq-ppc-bits.h
new file mode 100644
index 000000000000..98e69eae1e62
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-ppc-bits.h
@@ -0,0 +1,454 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-ppc-bits.h
+ *
+ * (C) Copyright 2016-2018 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * (C) Copyright 2016-2018 - Boqun Feng <boqun.feng@gmail.com>
+ */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		/* final store */
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 2)
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		/* cmp @v not equal to @expectnot */
+		RSEQ_ASM_OP_CMPNE(v, expectnot, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		/* cmp @v not equal to @expectnot */
+		RSEQ_ASM_OP_CMPNE(v, expectnot, %l[error2])
+#endif
+		/* load the value of @v */
+		RSEQ_ASM_OP_R_LOAD(v)
+		/* store it in @load */
+		RSEQ_ASM_OP_R_STORE(load)
+		/* dereference voffp(v) */
+		RSEQ_ASM_OP_R_LOADX(voffp)
+		/* final store the value at voffp(v) */
+		RSEQ_ASM_OP_R_FINAL_STORE(v, 2)
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"b" (voffp),
+		  [load]		"m" (*load)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+#endif
+		/* load the value of @v */
+		RSEQ_ASM_OP_R_LOAD(v)
+		/* add @count to it */
+		RSEQ_ASM_OP_R_ADD(count)
+		/* final store */
+		RSEQ_ASM_OP_R_FINAL_STORE(v, 2)
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [count]		"r" (count)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+		/* cmp @v2 equal to @expct2 */
+		RSEQ_ASM_OP_CMPEQ(v2, expect2, %l[cmpfail])
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+		/* cmp @v2 equal to @expct2 */
+		RSEQ_ASM_OP_CMPEQ(v2, expect2, %l[error3])
+#endif
+		/* final store */
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 2)
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		/* try store */
+		RSEQ_ASM_OP_STORE(newv2, v2)
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		/* for 'release' */
+		"lwsync\n\t"
+#endif
+		/* final store */
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 2)
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* setup for mempcy */
+		"mr %%r19, %[len]\n\t"
+		"mr %%r20, %[src]\n\t"
+		"mr %%r21, %[dst]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[cmpfail])
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		/* cmp cpuid */
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		/* cmp @v equal to @expect */
+		RSEQ_ASM_OP_CMPEQ(v, expect, %l[error2])
+#endif
+		/* try memcpy */
+		RSEQ_ASM_OP_R_MEMCPY()
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		/* for 'release' */
+		"lwsync\n\t"
+#endif
+		/* final store */
+		RSEQ_ASM_OP_FINAL_STORE(newv, v, 2)
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		RSEQ_ASM_DEFINE_ABORT(4, abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r17", "r18", "r19", "r20", "r21"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-ppc-thread-pointer.h b/tools/testing/selftests/rseq/rseq-ppc-thread-pointer.h
new file mode 100644
index 000000000000..263eee84fb76
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-ppc-thread-pointer.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+/*
+ * rseq-ppc-thread-pointer.h
+ *
+ * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef _RSEQ_PPC_THREAD_POINTER
+#define _RSEQ_PPC_THREAD_POINTER
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static inline void *rseq_thread_pointer(void)
+{
+#ifdef __powerpc64__
+	register void *__result asm ("r13");
+#else
+	register void *__result asm ("r2");
+#endif
+	asm ("" : "=r" (__result));
+	return __result;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/tools/testing/selftests/rseq/rseq-ppc.h b/tools/testing/selftests/rseq/rseq-ppc.h
new file mode 100644
index 000000000000..57b160597189
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-ppc.h
@@ -0,0 +1,238 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-ppc.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * (C) Copyright 2016-2018 - Boqun Feng <boqun.feng@gmail.com>
+ */
+
+/*
+ * RSEQ_SIG is used with the following trap instruction:
+ *
+ * powerpc-be:    0f e5 00 0b           twui   r5,11
+ * powerpc64-le:  0b 00 e5 0f           twui   r5,11
+ * powerpc64-be:  0f e5 00 0b           twui   r5,11
+ */
+
+#define RSEQ_SIG	0x0fe5000b
+
+#define rseq_smp_mb()		__asm__ __volatile__ ("sync"	::: "memory", "cc")
+#define rseq_smp_lwsync()	__asm__ __volatile__ ("lwsync"	::: "memory", "cc")
+#define rseq_smp_rmb()		rseq_smp_lwsync()
+#define rseq_smp_wmb()		rseq_smp_lwsync()
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_smp_lwsync();						\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_lwsync()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_smp_lwsync();						\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+/*
+ * The __rseq_cs_ptr_array and __rseq_cs sections can be used by debuggers to
+ * better handle single-stepping through the restartable critical sections.
+ */
+
+#ifdef __PPC64__
+
+#define RSEQ_STORE_LONG(arg)	"std%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* To memory ("m" constraint) */
+#define RSEQ_STORE_INT(arg)	"stw%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* To memory ("m" constraint) */
+#define RSEQ_LOAD_LONG(arg)	"ld%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* From memory ("m" constraint) */
+#define RSEQ_LOAD_INT(arg)	"lwz%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* From memory ("m" constraint) */
+#define RSEQ_LOADX_LONG		"ldx "							/* From base register ("b" constraint) */
+#define RSEQ_CMP_LONG		"cmpd "
+#define RSEQ_CMP_LONG_INT	"cmpdi "
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags,				\
+			start_ip, post_commit_offset, abort_ip)			\
+		".pushsection __rseq_cs, \"aw\"\n\t"				\
+		".balign 32\n\t"						\
+		__rseq_str(label) ":\n\t"					\
+		".long " __rseq_str(version) ", " __rseq_str(flags) "\n\t"	\
+		".quad " __rseq_str(start_ip) ", " __rseq_str(post_commit_offset) ", " __rseq_str(abort_ip) "\n\t" \
+		".popsection\n\t"						\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"			\
+		".quad " __rseq_str(label) "b\n\t"				\
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)			\
+		RSEQ_INJECT_ASM(1)						\
+		"lis %%r17, (" __rseq_str(cs_label) ")@highest\n\t"		\
+		"ori %%r17, %%r17, (" __rseq_str(cs_label) ")@higher\n\t"	\
+		"rldicr %%r17, %%r17, 32, 31\n\t"				\
+		"oris %%r17, %%r17, (" __rseq_str(cs_label) ")@high\n\t"	\
+		"ori %%r17, %%r17, (" __rseq_str(cs_label) ")@l\n\t"		\
+		"std %%r17, %[" __rseq_str(rseq_cs) "]\n\t"			\
+		__rseq_str(label) ":\n\t"
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"	\
+		".quad " __rseq_str(start_ip) ", " __rseq_str(exit_ip) "\n\t" \
+		".popsection\n\t"
+
+#else /* #ifdef __PPC64__ */
+
+#define RSEQ_STORE_LONG(arg)	"stw%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* To memory ("m" constraint) */
+#define RSEQ_STORE_INT(arg)	RSEQ_STORE_LONG(arg)					/* To memory ("m" constraint) */
+#define RSEQ_LOAD_LONG(arg)	"lwz%U[" __rseq_str(arg) "]%X[" __rseq_str(arg) "] "	/* From memory ("m" constraint) */
+#define RSEQ_LOAD_INT(arg)	RSEQ_LOAD_LONG(arg)					/* From memory ("m" constraint) */
+#define RSEQ_LOADX_LONG		"lwzx "							/* From base register ("b" constraint) */
+#define RSEQ_CMP_LONG		"cmpw "
+#define RSEQ_CMP_LONG_INT	"cmpwi "
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags,				\
+			start_ip, post_commit_offset, abort_ip)			\
+		".pushsection __rseq_cs, \"aw\"\n\t"				\
+		".balign 32\n\t"						\
+		__rseq_str(label) ":\n\t"					\
+		".long " __rseq_str(version) ", " __rseq_str(flags) "\n\t"	\
+		/* 32-bit only supported on BE */				\
+		".long 0x0, " __rseq_str(start_ip) ", 0x0, " __rseq_str(post_commit_offset) ", 0x0, " __rseq_str(abort_ip) "\n\t" \
+		".popsection\n\t"					\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"		\
+		".long 0x0, " __rseq_str(label) "b\n\t"			\
+		".popsection\n\t"
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)				\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"		\
+		/* 32-bit only supported on BE */				\
+		".long 0x0, " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) "\n\t"	\
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)			\
+		RSEQ_INJECT_ASM(1)						\
+		"lis %%r17, (" __rseq_str(cs_label) ")@ha\n\t"			\
+		"addi %%r17, %%r17, (" __rseq_str(cs_label) ")@l\n\t"		\
+		RSEQ_STORE_INT(rseq_cs) "%%r17, %[" __rseq_str(rseq_cs) "]\n\t"	\
+		__rseq_str(label) ":\n\t"
+
+#endif /* #ifdef __PPC64__ */
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip)	\
+		__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		\
+					(post_commit_ip - start_ip), abort_ip)
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)			\
+		RSEQ_INJECT_ASM(2)						\
+		RSEQ_LOAD_INT(current_cpu_id) "%%r17, %[" __rseq_str(current_cpu_id) "]\n\t" \
+		"cmpw cr7, %[" __rseq_str(cpu_id) "], %%r17\n\t"		\
+		"bne- cr7, " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, abort_label)				\
+		".pushsection __rseq_failure, \"ax\"\n\t"			\
+		".long " __rseq_str(RSEQ_SIG) "\n\t"				\
+		__rseq_str(label) ":\n\t"					\
+		"b %l[" __rseq_str(abort_label) "]\n\t"				\
+		".popsection\n\t"
+
+/*
+ * RSEQ_ASM_OPs: asm operations for rseq
+ * 	RSEQ_ASM_OP_R_*: has hard-code registers in it
+ * 	RSEQ_ASM_OP_* (else): doesn't have hard-code registers(unless cr7)
+ */
+#define RSEQ_ASM_OP_CMPEQ(var, expect, label)					\
+		RSEQ_LOAD_LONG(var) "%%r17, %[" __rseq_str(var) "]\n\t"		\
+		RSEQ_CMP_LONG "cr7, %%r17, %[" __rseq_str(expect) "]\n\t"		\
+		"bne- cr7, " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_OP_CMPNE(var, expectnot, label)				\
+		RSEQ_LOAD_LONG(var) "%%r17, %[" __rseq_str(var) "]\n\t"		\
+		RSEQ_CMP_LONG "cr7, %%r17, %[" __rseq_str(expectnot) "]\n\t"		\
+		"beq- cr7, " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_OP_STORE(value, var)						\
+		RSEQ_STORE_LONG(var) "%[" __rseq_str(value) "], %[" __rseq_str(var) "]\n\t"
+
+/* Load @var to r17 */
+#define RSEQ_ASM_OP_R_LOAD(var)							\
+		RSEQ_LOAD_LONG(var) "%%r17, %[" __rseq_str(var) "]\n\t"
+
+/* Store r17 to @var */
+#define RSEQ_ASM_OP_R_STORE(var)						\
+		RSEQ_STORE_LONG(var) "%%r17, %[" __rseq_str(var) "]\n\t"
+
+/* Add @count to r17 */
+#define RSEQ_ASM_OP_R_ADD(count)						\
+		"add %%r17, %[" __rseq_str(count) "], %%r17\n\t"
+
+/* Load (r17 + voffp) to r17 */
+#define RSEQ_ASM_OP_R_LOADX(voffp)						\
+		RSEQ_LOADX_LONG "%%r17, %[" __rseq_str(voffp) "], %%r17\n\t"
+
+/* TODO: implement a faster memcpy. */
+#define RSEQ_ASM_OP_R_MEMCPY() \
+		RSEQ_CMP_LONG_INT "%%r19, 0\n\t" \
+		"beq 333f\n\t" \
+		"addi %%r20, %%r20, -1\n\t" \
+		"addi %%r21, %%r21, -1\n\t" \
+		"222:\n\t" \
+		"lbzu %%r18, 1(%%r20)\n\t" \
+		"stbu %%r18, 1(%%r21)\n\t" \
+		"addi %%r19, %%r19, -1\n\t" \
+		RSEQ_CMP_LONG_INT "%%r19, 0\n\t" \
+		"bne 222b\n\t" \
+		"333:\n\t" \
+
+#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label)			\
+		RSEQ_STORE_LONG(var) "%%r17, %[" __rseq_str(var) "]\n\t"			\
+		__rseq_str(post_commit_label) ":\n\t"
+
+#define RSEQ_ASM_OP_FINAL_STORE(value, var, post_commit_label)			\
+		RSEQ_STORE_LONG(var) "%[" __rseq_str(value) "], %[" __rseq_str(var) "]\n\t" \
+		__rseq_str(post_commit_label) ":\n\t"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-ppc-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-ppc-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-ppc-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-ppc-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-ppc-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-riscv-bits.h b/tools/testing/selftests/rseq/rseq-riscv-bits.h
new file mode 100644
index 000000000000..f02f411d550d
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-riscv-bits.h
@@ -0,0 +1,410 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+				  RSEQ_INJECT_ASM(5)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expect]		"r" (expect),
+				    [newv]		"r" (newv)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       off_t voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPNE(v, expectnot, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_R_LOAD(v)
+				  RSEQ_ASM_OP_R_STORE(load)
+				  RSEQ_ASM_OP_R_LOAD_OFF(voffp)
+				  RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+				  RSEQ_INJECT_ASM(5)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expectnot]		"r" (expectnot),
+				    [load]		"m" (*load),
+				    [voffp]		"r" (voffp)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+#endif
+				  RSEQ_ASM_OP_R_LOAD(v)
+				  RSEQ_ASM_OP_R_ADD(count)
+				  RSEQ_ASM_OP_R_FINAL_STORE(v, 3)
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [count]		"r" (count)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error3]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+				  RSEQ_ASM_OP_CMPEQ(v2, expect2, "%l[error3]")
+#endif
+				  RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]		"r" (cpu),
+				    [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [v]			"m" (*v),
+				    [expect]		"r" (expect),
+				    [v2]			"m" (*v2),
+				    [expect2]		"r" (expect2),
+				    [newv]		"r" (newv)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2, error3
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+error3:
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
+
+/*
+ *   pval = *(ptr+off)
+ *  *pval += inc;
+ */
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, off_t off, intptr_t inc, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+#endif
+				  RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, 3)
+				  RSEQ_INJECT_ASM(4)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]			"r" (cpu),
+				    [current_cpu_id]		"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]			"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [ptr]			"r" (ptr),
+				    [off]			"r" (off),
+				    [inc]			"r" (inc)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_STORE(newv2, v2)
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+				  RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
+#else
+				  RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+#endif
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]			"r" (cpu),
+				    [current_cpu_id]		"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]			"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [expect]			"r" (expect),
+				    [v]				"m" (*v),
+				    [newv]			"r" (newv),
+				    [v2]			"m" (*v2),
+				    [newv2]			"r" (newv2)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __always_inline
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+	__asm__ __volatile__ goto(RSEQ_ASM_DEFINE_TABLE(1, 2f, 3f, 4f)
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[cmpfail]")
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error1]")
+				  RSEQ_ASM_DEFINE_EXIT_POINT(2f, "%l[error2]")
+#endif
+				  RSEQ_ASM_STORE_RSEQ_CS(2, 1b, rseq_cs)
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+				  RSEQ_INJECT_ASM(3)
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[cmpfail]")
+				  RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+				  RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, "%l[error1]")
+				  RSEQ_ASM_OP_CMPEQ(v, expect, "%l[error2]")
+#endif
+				  RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)
+				  RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+				  RSEQ_ASM_OP_FINAL_STORE_RELEASE(newv, v, 3)
+#else
+				  RSEQ_ASM_OP_FINAL_STORE(newv, v, 3)
+#endif
+				  RSEQ_INJECT_ASM(6)
+				  RSEQ_ASM_DEFINE_ABORT(4, abort)
+				  : /* gcc asm goto does not allow outputs */
+				  : [cpu_id]			"r" (cpu),
+				    [current_cpu_id]		"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+				    [rseq_cs]			"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+				    [expect]			"r" (expect),
+				    [v]				"m" (*v),
+				    [newv]			"r" (newv),
+				    [dst]			"r" (dst),
+				    [src]			"r" (src),
+				    [len]			"r" (len)
+				    RSEQ_INJECT_INPUT
+				  : "memory", RSEQ_ASM_TMP_REG_1, RSEQ_ASM_TMP_REG_2,
+				    RSEQ_ASM_TMP_REG_3, RSEQ_ASM_TMP_REG_4
+				    RSEQ_INJECT_CLOBBER
+				  : abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+				    , error1, error2
+#endif
+	);
+
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-riscv.h b/tools/testing/selftests/rseq/rseq-riscv.h
new file mode 100644
index 000000000000..06c840e81c8b
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-riscv.h
@@ -0,0 +1,197 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * Select the instruction "csrw mhartid, x0" as the RSEQ_SIG. Unlike
+ * other architectures, the ebreak instruction has no immediate field for
+ * distinguishing purposes. Hence, ebreak is not suitable as RSEQ_SIG.
+ * "csrw mhartid, x0" can also satisfy the RSEQ requirement because it
+ * is an uncommon instruction and will raise an illegal instruction
+ * exception when executed in all modes.
+ */
+#include <endian.h>
+#include <asm/fence.h>
+
+#if defined(__BYTE_ORDER) ? (__BYTE_ORDER == __LITTLE_ENDIAN) : defined(__LITTLE_ENDIAN)
+#define RSEQ_SIG   0xf1401073  /* csrr mhartid, x0 */
+#else
+#error "Currently, RSEQ only supports Little-Endian version"
+#endif
+
+#if __riscv_xlen == 64
+#define __REG_SEL(a, b)	a
+#elif __riscv_xlen == 32
+#define __REG_SEL(a, b)	b
+#endif
+
+#define REG_L	__REG_SEL("ld ", "lw ")
+#define REG_S	__REG_SEL("sd ", "sw ")
+
+#define rseq_smp_mb()	RISCV_FENCE(rw, rw)
+#define rseq_smp_rmb()	RISCV_FENCE(r, r)
+#define rseq_smp_wmb()	RISCV_FENCE(w, w)
+#define RSEQ_ASM_TMP_REG_1	"t6"
+#define RSEQ_ASM_TMP_REG_2	"t5"
+#define RSEQ_ASM_TMP_REG_3	"t4"
+#define RSEQ_ASM_TMP_REG_4	"t3"
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	RISCV_FENCE(r, rw);						\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	RISCV_FENCE(rw, w);						\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags, start_ip,	\
+				post_commit_offset, abort_ip)		\
+	".pushsection	__rseq_cs, \"aw\"\n"				\
+	".balign	32\n"						\
+	__rseq_str(label) ":\n"						\
+	".long	" __rseq_str(version) ", " __rseq_str(flags) "\n"	\
+	".quad	" __rseq_str(start_ip) ", "				\
+			  __rseq_str(post_commit_offset) ", "		\
+			  __rseq_str(abort_ip) "\n"			\
+	".popsection\n\t"						\
+	".pushsection __rseq_cs_ptr_array, \"aw\"\n"			\
+	".quad " __rseq_str(label) "b\n"				\
+	".popsection\n"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		 \
+				((post_commit_ip) - (start_ip)), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+	".pushsection __rseq_exit_point_array, \"aw\"\n"		\
+	".quad " __rseq_str(start_ip) ", " __rseq_str(exit_ip) "\n"	\
+	".popsection\n"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+	RSEQ_INJECT_ASM(1)						\
+	"la	" RSEQ_ASM_TMP_REG_1 ", " __rseq_str(cs_label) "\n"	\
+	REG_S	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(rseq_cs) "]\n"	\
+	__rseq_str(label) ":\n"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, abort_label)			\
+	"j	222f\n"							\
+	".balign	4\n"						\
+	".long "	__rseq_str(RSEQ_SIG) "\n"			\
+	__rseq_str(label) ":\n"						\
+	"j	%l[" __rseq_str(abort_label) "]\n"			\
+	"222:\n"
+
+#define RSEQ_ASM_OP_STORE(value, var)					\
+	REG_S	"%[" __rseq_str(value) "], %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_CMPEQ(var, expect, label)				\
+	REG_L	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"		\
+	"bne	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "] ,"	\
+		  __rseq_str(label) "\n"
+
+#define RSEQ_ASM_OP_CMPEQ32(var, expect, label)				\
+	"lw	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"	\
+	"bne	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "] ,"	\
+		  __rseq_str(label) "\n"
+
+#define RSEQ_ASM_OP_CMPNE(var, expect, label)				\
+	REG_L	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"		\
+	"beq	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(expect) "] ,"	\
+		  __rseq_str(label) "\n"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+	RSEQ_INJECT_ASM(2)						\
+	RSEQ_ASM_OP_CMPEQ32(current_cpu_id, cpu_id, label)
+
+#define RSEQ_ASM_OP_R_LOAD(var)						\
+	REG_L	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_R_STORE(var)					\
+	REG_S	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"
+
+#define RSEQ_ASM_OP_R_LOAD_OFF(offset)					\
+	"add	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(offset) "], "	\
+		 RSEQ_ASM_TMP_REG_1 "\n"				\
+	REG_L	RSEQ_ASM_TMP_REG_1 ", (" RSEQ_ASM_TMP_REG_1 ")\n"
+
+#define RSEQ_ASM_OP_R_ADD(count)					\
+	"add	" RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1		\
+		", %[" __rseq_str(count) "]\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE(value, var, post_commit_label)		\
+	RSEQ_ASM_OP_STORE(value, var)					\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_FINAL_STORE_RELEASE(value, var, post_commit_label)	\
+	"fence	rw, w\n"						\
+	RSEQ_ASM_OP_STORE(value, var)					\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_R_FINAL_STORE(var, post_commit_label)		\
+	REG_S	RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(var) "]\n"		\
+	__rseq_str(post_commit_label) ":\n"
+
+#define RSEQ_ASM_OP_R_BAD_MEMCPY(dst, src, len)				\
+	"beqz	%[" __rseq_str(len) "], 333f\n"				\
+	"mv	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(len) "]\n"	\
+	"mv	" RSEQ_ASM_TMP_REG_2 ", %[" __rseq_str(src) "]\n"	\
+	"mv	" RSEQ_ASM_TMP_REG_3 ", %[" __rseq_str(dst) "]\n"	\
+	"222:\n"							\
+	"lb	" RSEQ_ASM_TMP_REG_4 ", 0(" RSEQ_ASM_TMP_REG_2 ")\n"	\
+	"sb	" RSEQ_ASM_TMP_REG_4 ", 0(" RSEQ_ASM_TMP_REG_3 ")\n"	\
+	"addi	" RSEQ_ASM_TMP_REG_1 ", " RSEQ_ASM_TMP_REG_1 ", -1\n"	\
+	"addi	" RSEQ_ASM_TMP_REG_2 ", " RSEQ_ASM_TMP_REG_2 ", 1\n"	\
+	"addi	" RSEQ_ASM_TMP_REG_3 ", " RSEQ_ASM_TMP_REG_3 ", 1\n"	\
+	"bnez	" RSEQ_ASM_TMP_REG_1 ", 222b\n"				\
+	"333:\n"
+
+#define RSEQ_ASM_OP_R_DEREF_ADDV(ptr, off, inc, post_commit_label)	\
+	"mv	" RSEQ_ASM_TMP_REG_1 ", %[" __rseq_str(ptr) "]\n"	\
+	RSEQ_ASM_OP_R_ADD(off)						\
+	REG_L	  RSEQ_ASM_TMP_REG_1 ", 0(" RSEQ_ASM_TMP_REG_1 ")\n"	\
+	RSEQ_ASM_OP_R_ADD(inc)						\
+	__rseq_str(post_commit_label) ":\n"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-riscv-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-riscv-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-riscv-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-riscv-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-riscv-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-s390-bits.h b/tools/testing/selftests/rseq/rseq-s390-bits.h
new file mode 100644
index 000000000000..0cf17d9f170a
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-s390-bits.h
@@ -0,0 +1,474 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+
+#include "rseq-bits-template.h"
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+/*
+ * Compare @v against @expectnot. When it does _not_ match, load @v
+ * into @load, and store the content of *@v + voffp into @v.
+ */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_L " %%r1, %[v]\n\t"
+		LONG_CMP_R " %%r1, %[expectnot]\n\t"
+		"je %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_L " %%r1, %[v]\n\t"
+		LONG_CMP_R " %%r1, %[expectnot]\n\t"
+		"je %l[error2]\n\t"
+#endif
+		LONG_S " %%r1, %[load]\n\t"
+		LONG_ADD_R " %%r1, %[voffp]\n\t"
+		LONG_L " %%r1, 0(%%r1)\n\t"
+		/* final store */
+		LONG_S " %%r1, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"r" (voffp),
+		  [load]		"m" (*load)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0", "r1"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+#endif
+		LONG_L " %%r0, %[v]\n\t"
+		LONG_ADD_R " %%r0, %[count]\n\t"
+		/* final store */
+		LONG_S " %%r0, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [count]		"r" (count)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+		LONG_CMP " %[expect2], %[v2]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[error2]\n\t"
+		LONG_CMP " %[expect2], %[v2]\n\t"
+		"jnz %l[error3]\n\t"
+#endif
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+/* s390 is TSO. */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, %l[error1])
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* try store */
+		LONG_S " %[newv2], %[v2]\n\t"
+		RSEQ_INJECT_ASM(5)
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+/* s390 is TSO. */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	uint64_t rseq_scratch[3];
+
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		LONG_S " %[src], %[rseq_scratch0]\n\t"
+		LONG_S " %[dst], %[rseq_scratch1]\n\t"
+		LONG_S " %[len], %[rseq_scratch2]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, rseq_cs)
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 4f)
+		RSEQ_INJECT_ASM(3)
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz 5f\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, 6f)
+		LONG_CMP " %[expect], %[v]\n\t"
+		"jnz 7f\n\t"
+#endif
+		/* try memcpy */
+		LONG_LT_R " %[len], %[len]\n\t"
+		"jz 333f\n\t"
+		"222:\n\t"
+		"ic %%r0,0(%[src])\n\t"
+		"stc %%r0,0(%[dst])\n\t"
+		LONG_ADDI " %[src], 1\n\t"
+		LONG_ADDI " %[dst], 1\n\t"
+		LONG_ADDI " %[len], -1\n\t"
+		"jnz 222b\n\t"
+		"333:\n\t"
+		RSEQ_INJECT_ASM(5)
+		/* final store */
+		LONG_S " %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		LONG_L " %[len], %[rseq_scratch2]\n\t"
+		LONG_L " %[dst], %[rseq_scratch1]\n\t"
+		LONG_L " %[src], %[rseq_scratch0]\n\t"
+		RSEQ_ASM_DEFINE_ABORT(4,
+			LONG_L " %[len], %[rseq_scratch2]\n\t"
+			LONG_L " %[dst], %[rseq_scratch1]\n\t"
+			LONG_L " %[src], %[rseq_scratch0]\n\t",
+			abort)
+		RSEQ_ASM_DEFINE_CMPFAIL(5,
+			LONG_L " %[len], %[rseq_scratch2]\n\t"
+			LONG_L " %[dst], %[rseq_scratch1]\n\t"
+			LONG_L " %[src], %[rseq_scratch0]\n\t",
+			cmpfail)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_CMPFAIL(6,
+			LONG_L " %[len], %[rseq_scratch2]\n\t"
+			LONG_L " %[dst], %[rseq_scratch1]\n\t"
+			LONG_L " %[src], %[rseq_scratch0]\n\t",
+			error1)
+		RSEQ_ASM_DEFINE_CMPFAIL(7,
+			LONG_L " %[len], %[rseq_scratch2]\n\t"
+			LONG_L " %[dst], %[rseq_scratch1]\n\t"
+			LONG_L " %[src], %[rseq_scratch0]\n\t",
+			error2)
+#endif
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [current_cpu_id]	"m" (rseq_get_abi()->RSEQ_TEMPLATE_CPU_ID_FIELD),
+		  [rseq_cs]		"m" (rseq_get_abi()->rseq_cs.arch.ptr),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len),
+		  [rseq_scratch0]	"m" (rseq_scratch[0]),
+		  [rseq_scratch1]	"m" (rseq_scratch[1]),
+		  [rseq_scratch2]	"m" (rseq_scratch[2])
+		  RSEQ_INJECT_INPUT
+		: "memory", "cc", "r0"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-s390.h b/tools/testing/selftests/rseq/rseq-s390.h
new file mode 100644
index 000000000000..e7b858cd3736
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-s390.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+
+/*
+ * RSEQ_SIG uses the trap4 instruction. As Linux does not make use of the
+ * access-register mode nor the linkage stack this instruction will always
+ * cause a special-operation exception (the trap-enabled bit in the DUCT
+ * is and will stay 0). The instruction pattern is
+ *	b2 ff 0f ff	trap4	4095(%r0)
+ */
+#define RSEQ_SIG	0xB2FF0FFF
+
+#define rseq_smp_mb()	__asm__ __volatile__ ("bcr 15,0" ::: "memory")
+#define rseq_smp_rmb()	rseq_smp_mb()
+#define rseq_smp_wmb()	rseq_smp_mb()
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_barrier();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_barrier();							\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#define LONG_L			"lg"
+#define LONG_S			"stg"
+#define LONG_LT_R		"ltgr"
+#define LONG_CMP		"cg"
+#define LONG_CMP_R		"cgr"
+#define LONG_ADDI		"aghi"
+#define LONG_ADD_R		"agr"
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags,			\
+				start_ip, post_commit_offset, abort_ip)	\
+		".pushsection __rseq_cs, \"aw\"\n\t"			\
+		".balign 32\n\t"					\
+		__rseq_str(label) ":\n\t"				\
+		".long " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		".quad " __rseq_str(start_ip) ", " __rseq_str(post_commit_offset) ", " __rseq_str(abort_ip) "\n\t" \
+		".popsection\n\t"					\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"		\
+		".quad " __rseq_str(label) "b\n\t"			\
+		".popsection\n\t"
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"	\
+		".quad " __rseq_str(start_ip) ", " __rseq_str(exit_ip) "\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		\
+				(post_commit_ip - start_ip), abort_ip)
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+		RSEQ_INJECT_ASM(1)					\
+		"larl %%r0, " __rseq_str(cs_label) "\n\t"		\
+		LONG_S " %%r0, %[" __rseq_str(rseq_cs) "]\n\t"		\
+		__rseq_str(label) ":\n\t"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+		RSEQ_INJECT_ASM(2)					\
+		"c %[" __rseq_str(cpu_id) "], %[" __rseq_str(current_cpu_id) "]\n\t" \
+		"jnz " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, teardown, abort_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		".long " __rseq_str(RSEQ_SIG) "\n\t"			\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jg %l[" __rseq_str(abort_label) "]\n\t"		\
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jg %l[" __rseq_str(cmpfail_label) "]\n\t"		\
+		".popsection\n\t"
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-s390-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq-thread-pointer.h b/tools/testing/selftests/rseq/rseq-thread-pointer.h
new file mode 100644
index 000000000000..3d5019307a1b
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-thread-pointer.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+/*
+ * rseq-thread-pointer.h
+ *
+ * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef _RSEQ_THREAD_POINTER
+#define _RSEQ_THREAD_POINTER
+
+#if defined(__x86_64__) || defined(__i386__)
+#include "rseq-x86-thread-pointer.h"
+#elif defined(__PPC__)
+#include "rseq-ppc-thread-pointer.h"
+#elif defined(__or1k__)
+#include "rseq-or1k-thread-pointer.h"
+#else
+#include "rseq-generic-thread-pointer.h"
+#endif
+
+#endif
diff --git a/tools/testing/selftests/rseq/rseq-x86-bits.h b/tools/testing/selftests/rseq/rseq-x86-bits.h
new file mode 100644
index 000000000000..8a9431eec467
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-x86-bits.h
@@ -0,0 +1,993 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-x86-bits.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#include "rseq-bits-template.h"
+
+#ifdef __x86_64__
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* final store */
+		"movq %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		: "memory", "cc", "rax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+/*
+ * Compare @v against @expectnot. When it does _not_ match, load @v
+ * into @load, and store the content of *@v + voffp into @v.
+ */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"movq %[v], %%rbx\n\t"
+		"cmpq %%rbx, %[expectnot]\n\t"
+		"je %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"movq %[v], %%rbx\n\t"
+		"cmpq %%rbx, %[expectnot]\n\t"
+		"je %l[error2]\n\t"
+#endif
+		"movq %%rbx, %[load]\n\t"
+		"addq %[voffp], %%rbx\n\t"
+		"movq (%%rbx), %%rbx\n\t"
+		/* final store */
+		"movq %%rbx, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"er" (voffp),
+		  [load]		"m" (*load)
+		: "memory", "cc", "rax", "rbx"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+#endif
+		/* final store */
+		"addq %[count], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [count]		"er" (count)
+		: "memory", "cc", "rax"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+#define RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
+
+/*
+ *   pval = *(ptr+off)
+ *  *pval += inc;
+ */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_offset_deref_addv)(intptr_t *ptr, long off, intptr_t inc, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+#endif
+		/* get p+v */
+		"movq %[ptr], %%rbx\n\t"
+		"addq %[off], %%rbx\n\t"
+		/* get pv */
+		"movq (%%rbx), %%rcx\n\t"
+		/* *pv += inc */
+		"addq %[inc], (%%rcx)\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [ptr]			"m" (*ptr),
+		  [off]			"er" (off),
+		  [inc]			"er" (inc)
+		: "memory", "cc", "rax", "rbx", "rcx"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	return 0;
+abort:
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+		"cmpq %[v2], %[expect2]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[error2]\n\t"
+		"cmpq %[v2], %[expect2]\n\t"
+		"jnz %l[error3]\n\t"
+#endif
+		/* final store */
+		"movq %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		: "memory", "cc", "rax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"cmpq %[v], %[expect]\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* try store */
+		"movq %[newv2], %[v2]\n\t"
+		RSEQ_INJECT_ASM(5)
+		/* final store */
+		"movq %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		: "memory", "cc", "rax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	uint64_t rseq_scratch[3];
+
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		"movq %[src], %[rseq_scratch0]\n\t"
+		"movq %[dst], %[rseq_scratch1]\n\t"
+		"movq %[len], %[rseq_scratch2]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpq %[v], %[expect]\n\t"
+		"jnz 5f\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 6f)
+		"cmpq %[v], %[expect]\n\t"
+		"jnz 7f\n\t"
+#endif
+		/* try memcpy */
+		"test %[len], %[len]\n\t" \
+		"jz 333f\n\t" \
+		"222:\n\t" \
+		"movb (%[src]), %%al\n\t" \
+		"movb %%al, (%[dst])\n\t" \
+		"inc %[src]\n\t" \
+		"inc %[dst]\n\t" \
+		"dec %[len]\n\t" \
+		"jnz 222b\n\t" \
+		"333:\n\t" \
+		RSEQ_INJECT_ASM(5)
+		/* final store */
+		"movq %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		"movq %[rseq_scratch2], %[len]\n\t"
+		"movq %[rseq_scratch1], %[dst]\n\t"
+		"movq %[rseq_scratch0], %[src]\n\t"
+		RSEQ_ASM_DEFINE_ABORT(4,
+			"movq %[rseq_scratch2], %[len]\n\t"
+			"movq %[rseq_scratch1], %[dst]\n\t"
+			"movq %[rseq_scratch0], %[src]\n\t",
+			abort)
+		RSEQ_ASM_DEFINE_CMPFAIL(5,
+			"movq %[rseq_scratch2], %[len]\n\t"
+			"movq %[rseq_scratch1], %[dst]\n\t"
+			"movq %[rseq_scratch0], %[src]\n\t",
+			cmpfail)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_CMPFAIL(6,
+			"movq %[rseq_scratch2], %[len]\n\t"
+			"movq %[rseq_scratch1], %[dst]\n\t"
+			"movq %[rseq_scratch0], %[src]\n\t",
+			error1)
+		RSEQ_ASM_DEFINE_CMPFAIL(7,
+			"movq %[rseq_scratch2], %[len]\n\t"
+			"movq %[rseq_scratch1], %[dst]\n\t"
+			"movq %[rseq_scratch0], %[src]\n\t",
+			error2)
+#endif
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len),
+		  [rseq_scratch0]	"m" (rseq_scratch[0]),
+		  [rseq_scratch1]	"m" (rseq_scratch[1]),
+		  [rseq_scratch2]	"m" (rseq_scratch[2])
+		: "memory", "cc", "rax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#elif defined(__i386__)
+
+#if defined(RSEQ_TEMPLATE_MO_RELAXED) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_storev)(intptr_t *v, intptr_t expect, intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpl %[v], %[expect]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"cmpl %[v], %[expect]\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* final store */
+		"movl %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"r" (newv)
+		: "memory", "cc", "eax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+/*
+ * Compare @v against @expectnot. When it does _not_ match, load @v
+ * into @load, and store the content of *@v + voffp into @v.
+ */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpnev_storeoffp_load)(intptr_t *v, intptr_t expectnot,
+			       long voffp, intptr_t *load, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"movl %[v], %%ebx\n\t"
+		"cmpl %%ebx, %[expectnot]\n\t"
+		"je %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"movl %[v], %%ebx\n\t"
+		"cmpl %%ebx, %[expectnot]\n\t"
+		"je %l[error2]\n\t"
+#endif
+		"movl %%ebx, %[load]\n\t"
+		"addl %[voffp], %%ebx\n\t"
+		"movl (%%ebx), %%ebx\n\t"
+		/* final store */
+		"movl %%ebx, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(5)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expectnot]		"r" (expectnot),
+		  [voffp]		"ir" (voffp),
+		  [load]		"m" (*load)
+		: "memory", "cc", "eax", "ebx"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_addv)(intptr_t *v, intptr_t count, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+#endif
+		/* final store */
+		"addl %[count], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(4)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [count]		"ir" (count)
+		: "memory", "cc", "eax"
+		  RSEQ_INJECT_CLOBBER
+		: abort
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+#endif
+}
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_cmpeqv_storev)(intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error3])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"cmpl %[v], %[expect]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+		"cmpl %[expect2], %[v2]\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"cmpl %[v], %[expect]\n\t"
+		"jnz %l[error2]\n\t"
+		"cmpl %[expect2], %[v2]\n\t"
+		"jnz %l[error3]\n\t"
+#endif
+		"movl %[newv], %%eax\n\t"
+		/* final store */
+		"movl %%eax, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* cmp2 input */
+		  [v2]			"m" (*v2),
+		  [expect2]		"r" (expect2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"r" (expect),
+		  [newv]		"m" (newv)
+		: "memory", "cc", "eax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2, error3
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("1st expected value comparison failed");
+error3:
+	rseq_after_asm_goto();
+	rseq_bug("2nd expected value comparison failed");
+#endif
+}
+
+#endif /* #if defined(RSEQ_TEMPLATE_MO_RELAXED) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) && \
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID))
+
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trystorev_storev)(intptr_t *v, intptr_t expect,
+					 intptr_t *v2, intptr_t newv2,
+					 intptr_t newv, int cpu)
+{
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"movl %[expect], %%eax\n\t"
+		"cmpl %[v], %%eax\n\t"
+		"jnz %l[cmpfail]\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), %l[error1])
+		"movl %[expect], %%eax\n\t"
+		"cmpl %[v], %%eax\n\t"
+		"jnz %l[error2]\n\t"
+#endif
+		/* try store */
+		"movl %[newv2], %[v2]\n\t"
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"lock; addl $0,-128(%%esp)\n\t"
+#endif
+		/* final store */
+		"movl %[newv], %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		RSEQ_ASM_DEFINE_ABORT(4, "", abort)
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* try store input */
+		  [v2]			"m" (*v2),
+		  [newv2]		"r" (newv2),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"m" (expect),
+		  [newv]		"r" (newv)
+		: "memory", "cc", "eax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+
+}
+
+/* TODO: implement a faster memcpy. */
+static inline __attribute__((always_inline))
+int RSEQ_TEMPLATE_IDENTIFIER(rseq_cmpeqv_trymemcpy_storev)(intptr_t *v, intptr_t expect,
+					 void *dst, void *src, size_t len,
+					 intptr_t newv, int cpu)
+{
+	uint32_t rseq_scratch[3];
+
+	RSEQ_INJECT_C(9)
+
+	__asm__ __volatile__ goto (
+		RSEQ_ASM_DEFINE_TABLE(3, 1f, 2f, 4f) /* start, commit, abort */
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[cmpfail])
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error1])
+		RSEQ_ASM_DEFINE_EXIT_POINT(1f, %l[error2])
+#endif
+		"movl %[src], %[rseq_scratch0]\n\t"
+		"movl %[dst], %[rseq_scratch1]\n\t"
+		"movl %[len], %[rseq_scratch2]\n\t"
+		/* Start rseq by storing table entry pointer into rseq_cs. */
+		RSEQ_ASM_STORE_RSEQ_CS(1, 3b, RSEQ_ASM_TP_SEGMENT:RSEQ_CS_OFFSET(%[rseq_offset]))
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 4f)
+		RSEQ_INJECT_ASM(3)
+		"movl %[expect], %%eax\n\t"
+		"cmpl %%eax, %[v]\n\t"
+		"jnz 5f\n\t"
+		RSEQ_INJECT_ASM(4)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_CMP_CPU_ID(cpu_id, RSEQ_ASM_TP_SEGMENT:RSEQ_TEMPLATE_CPU_ID_OFFSET(%[rseq_offset]), 6f)
+		"movl %[expect], %%eax\n\t"
+		"cmpl %%eax, %[v]\n\t"
+		"jnz 7f\n\t"
+#endif
+		/* try memcpy */
+		"test %[len], %[len]\n\t" \
+		"jz 333f\n\t" \
+		"222:\n\t" \
+		"movb (%[src]), %%al\n\t" \
+		"movb %%al, (%[dst])\n\t" \
+		"inc %[src]\n\t" \
+		"inc %[dst]\n\t" \
+		"dec %[len]\n\t" \
+		"jnz 222b\n\t" \
+		"333:\n\t" \
+		RSEQ_INJECT_ASM(5)
+#ifdef RSEQ_TEMPLATE_MO_RELEASE
+		"lock; addl $0,-128(%%esp)\n\t"
+#endif
+		"movl %[newv], %%eax\n\t"
+		/* final store */
+		"movl %%eax, %[v]\n\t"
+		"2:\n\t"
+		RSEQ_INJECT_ASM(6)
+		/* teardown */
+		"movl %[rseq_scratch2], %[len]\n\t"
+		"movl %[rseq_scratch1], %[dst]\n\t"
+		"movl %[rseq_scratch0], %[src]\n\t"
+		RSEQ_ASM_DEFINE_ABORT(4,
+			"movl %[rseq_scratch2], %[len]\n\t"
+			"movl %[rseq_scratch1], %[dst]\n\t"
+			"movl %[rseq_scratch0], %[src]\n\t",
+			abort)
+		RSEQ_ASM_DEFINE_CMPFAIL(5,
+			"movl %[rseq_scratch2], %[len]\n\t"
+			"movl %[rseq_scratch1], %[dst]\n\t"
+			"movl %[rseq_scratch0], %[src]\n\t",
+			cmpfail)
+#ifdef RSEQ_COMPARE_TWICE
+		RSEQ_ASM_DEFINE_CMPFAIL(6,
+			"movl %[rseq_scratch2], %[len]\n\t"
+			"movl %[rseq_scratch1], %[dst]\n\t"
+			"movl %[rseq_scratch0], %[src]\n\t",
+			error1)
+		RSEQ_ASM_DEFINE_CMPFAIL(7,
+			"movl %[rseq_scratch2], %[len]\n\t"
+			"movl %[rseq_scratch1], %[dst]\n\t"
+			"movl %[rseq_scratch0], %[src]\n\t",
+			error2)
+#endif
+		: /* gcc asm goto does not allow outputs */
+		: [cpu_id]		"r" (cpu),
+		  [rseq_offset]		"r" (rseq_offset),
+		  /* final store input */
+		  [v]			"m" (*v),
+		  [expect]		"m" (expect),
+		  [newv]		"m" (newv),
+		  /* try memcpy input */
+		  [dst]			"r" (dst),
+		  [src]			"r" (src),
+		  [len]			"r" (len),
+		  [rseq_scratch0]	"m" (rseq_scratch[0]),
+		  [rseq_scratch1]	"m" (rseq_scratch[1]),
+		  [rseq_scratch2]	"m" (rseq_scratch[2])
+		: "memory", "cc", "eax"
+		  RSEQ_INJECT_CLOBBER
+		: abort, cmpfail
+#ifdef RSEQ_COMPARE_TWICE
+		  , error1, error2
+#endif
+	);
+	rseq_after_asm_goto();
+	return 0;
+abort:
+	rseq_after_asm_goto();
+	RSEQ_INJECT_FAILED
+	return -1;
+cmpfail:
+	rseq_after_asm_goto();
+	return 1;
+#ifdef RSEQ_COMPARE_TWICE
+error1:
+	rseq_after_asm_goto();
+	rseq_bug("cpu_id comparison failed");
+error2:
+	rseq_after_asm_goto();
+	rseq_bug("expected value comparison failed");
+#endif
+}
+
+#endif /* #if (defined(RSEQ_TEMPLATE_MO_RELAXED) || defined(RSEQ_TEMPLATE_MO_RELEASE)) &&
+	(defined(RSEQ_TEMPLATE_CPU_ID) || defined(RSEQ_TEMPLATE_MM_CID)) */
+
+#endif
+
+#include "rseq-bits-reset.h"
diff --git a/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h b/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h
new file mode 100644
index 000000000000..d3133587d996
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-x86-thread-pointer.h
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: LGPL-2.1-only OR MIT */
+/*
+ * rseq-x86-thread-pointer.h
+ *
+ * (C) Copyright 2021 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef _RSEQ_X86_THREAD_POINTER
+#define _RSEQ_X86_THREAD_POINTER
+
+#include <features.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if __GNUC_PREREQ (11, 1)
+static inline void *rseq_thread_pointer(void)
+{
+	return __builtin_thread_pointer();
+}
+#else
+static inline void *rseq_thread_pointer(void)
+{
+	void *__result;
+
+# ifdef __x86_64__
+	__asm__ ("mov %%fs:0, %0" : "=r" (__result));
+# else
+	__asm__ ("mov %%gs:0, %0" : "=r" (__result));
+# endif
+	return __result;
+}
+#endif /* !GCC 11 */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/tools/testing/selftests/rseq/rseq-x86.h b/tools/testing/selftests/rseq/rseq-x86.h
new file mode 100644
index 000000000000..a2aa428ba151
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq-x86.h
@@ -0,0 +1,234 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq-x86.h
+ *
+ * (C) Copyright 2016-2022 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef RSEQ_H
+#error "Never use <rseq-x86.h> directly; include <rseq.h> instead."
+#endif
+
+#include <stdint.h>
+
+/*
+ * RSEQ_SIG is used with the following reserved undefined instructions, which
+ * trap in user-space:
+ *
+ * x86-32:    0f b9 3d 53 30 05 53      ud1    0x53053053,%edi
+ * x86-64:    0f b9 3d 53 30 05 53      ud1    0x53053053(%rip),%edi
+ */
+#define RSEQ_SIG	0x53053053
+
+/*
+ * Due to a compiler optimization bug in gcc-8 with asm goto and TLS asm input
+ * operands, we cannot use "m" input operands, and rather pass the __rseq_abi
+ * address through a "r" input operand.
+ */
+
+/* Offset of cpu_id, rseq_cs, and mm_cid fields in struct rseq. */
+#define RSEQ_CPU_ID_OFFSET	4
+#define RSEQ_CS_OFFSET		8
+#define RSEQ_MM_CID_OFFSET	24
+
+#ifdef __x86_64__
+
+#define RSEQ_ASM_TP_SEGMENT	%%fs
+
+#define rseq_smp_mb()	\
+	__asm__ __volatile__ ("lock; addl $0,-128(%%rsp)" ::: "memory", "cc")
+#define rseq_smp_rmb()	rseq_barrier()
+#define rseq_smp_wmb()	rseq_barrier()
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	rseq_unqual_scalar_typeof(*(p)) ____p1 = RSEQ_READ_ONCE(*(p));	\
+	rseq_barrier();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_barrier();							\
+	RSEQ_WRITE_ONCE(*(p), v);					\
+} while (0)
+
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags,			\
+				start_ip, post_commit_offset, abort_ip)	\
+		".pushsection __rseq_cs, \"aw\"\n\t"			\
+		".balign 32\n\t"					\
+		__rseq_str(label) ":\n\t"				\
+		".long " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		".quad " __rseq_str(start_ip) ", " __rseq_str(post_commit_offset) ", " __rseq_str(abort_ip) "\n\t" \
+		".popsection\n\t"					\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"		\
+		".quad " __rseq_str(label) "b\n\t"			\
+		".popsection\n\t"
+
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		\
+				(post_commit_ip - start_ip), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"	\
+		".quad " __rseq_str(start_ip) ", " __rseq_str(exit_ip) "\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+		RSEQ_INJECT_ASM(1)					\
+		"leaq " __rseq_str(cs_label) "(%%rip), %%rax\n\t"	\
+		"movq %%rax, " __rseq_str(rseq_cs) "\n\t"		\
+		__rseq_str(label) ":\n\t"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+		RSEQ_INJECT_ASM(2)					\
+		"cmpl %[" __rseq_str(cpu_id) "], " __rseq_str(current_cpu_id) "\n\t" \
+		"jnz " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, teardown, abort_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		/* Disassembler-friendly signature: ud1 <sig>(%rip),%edi. */ \
+		".byte 0x0f, 0xb9, 0x3d\n\t"				\
+		".long " __rseq_str(RSEQ_SIG) "\n\t"			\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jmp %l[" __rseq_str(abort_label) "]\n\t"		\
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jmp %l[" __rseq_str(cmpfail_label) "]\n\t"		\
+		".popsection\n\t"
+
+#elif defined(__i386__)
+
+#define RSEQ_ASM_TP_SEGMENT	%%gs
+
+#define rseq_smp_mb()	\
+	__asm__ __volatile__ ("lock; addl $0,-128(%%esp)" ::: "memory", "cc")
+#define rseq_smp_rmb()	\
+	__asm__ __volatile__ ("lock; addl $0,-128(%%esp)" ::: "memory", "cc")
+#define rseq_smp_wmb()	\
+	__asm__ __volatile__ ("lock; addl $0,-128(%%esp)" ::: "memory", "cc")
+
+#define rseq_smp_load_acquire(p)					\
+__extension__ ({							\
+	__typeof(*p) ____p1 = RSEQ_READ_ONCE(*p);			\
+	rseq_smp_mb();							\
+	____p1;								\
+})
+
+#define rseq_smp_acquire__after_ctrl_dep()	rseq_smp_rmb()
+
+#define rseq_smp_store_release(p, v)					\
+do {									\
+	rseq_smp_mb();							\
+	RSEQ_WRITE_ONCE(*p, v);						\
+} while (0)
+
+/*
+ * Use eax as scratch register and take memory operands as input to
+ * lessen register pressure. Especially needed when compiling in O0.
+ */
+#define __RSEQ_ASM_DEFINE_TABLE(label, version, flags,			\
+				start_ip, post_commit_offset, abort_ip)	\
+		".pushsection __rseq_cs, \"aw\"\n\t"			\
+		".balign 32\n\t"					\
+		__rseq_str(label) ":\n\t"				\
+		".long " __rseq_str(version) ", " __rseq_str(flags) "\n\t" \
+		".long " __rseq_str(start_ip) ", 0x0, " __rseq_str(post_commit_offset) ", 0x0, " __rseq_str(abort_ip) ", 0x0\n\t" \
+		".popsection\n\t"					\
+		".pushsection __rseq_cs_ptr_array, \"aw\"\n\t"		\
+		".long " __rseq_str(label) "b, 0x0\n\t"			\
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_TABLE(label, start_ip, post_commit_ip, abort_ip) \
+	__RSEQ_ASM_DEFINE_TABLE(label, 0x0, 0x0, start_ip,		\
+				(post_commit_ip - start_ip), abort_ip)
+
+/*
+ * Exit points of a rseq critical section consist of all instructions outside
+ * of the critical section where a critical section can either branch to or
+ * reach through the normal course of its execution. The abort IP and the
+ * post-commit IP are already part of the __rseq_cs section and should not be
+ * explicitly defined as additional exit points. Knowing all exit points is
+ * useful to assist debuggers stepping over the critical section.
+ */
+#define RSEQ_ASM_DEFINE_EXIT_POINT(start_ip, exit_ip)			\
+		".pushsection __rseq_exit_point_array, \"aw\"\n\t"	\
+		".long " __rseq_str(start_ip) ", 0x0, " __rseq_str(exit_ip) ", 0x0\n\t" \
+		".popsection\n\t"
+
+#define RSEQ_ASM_STORE_RSEQ_CS(label, cs_label, rseq_cs)		\
+		RSEQ_INJECT_ASM(1)					\
+		"movl $" __rseq_str(cs_label) ", " __rseq_str(rseq_cs) "\n\t"	\
+		__rseq_str(label) ":\n\t"
+
+#define RSEQ_ASM_CMP_CPU_ID(cpu_id, current_cpu_id, label)		\
+		RSEQ_INJECT_ASM(2)					\
+		"cmpl %[" __rseq_str(cpu_id) "], " __rseq_str(current_cpu_id) "\n\t" \
+		"jnz " __rseq_str(label) "\n\t"
+
+#define RSEQ_ASM_DEFINE_ABORT(label, teardown, abort_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		/* Disassembler-friendly signature: ud1 <sig>,%edi. */	\
+		".byte 0x0f, 0xb9, 0x3d\n\t"				\
+		".long " __rseq_str(RSEQ_SIG) "\n\t"			\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jmp %l[" __rseq_str(abort_label) "]\n\t"		\
+		".popsection\n\t"
+
+#define RSEQ_ASM_DEFINE_CMPFAIL(label, teardown, cmpfail_label)		\
+		".pushsection __rseq_failure, \"ax\"\n\t"		\
+		__rseq_str(label) ":\n\t"				\
+		teardown						\
+		"jmp %l[" __rseq_str(cmpfail_label) "]\n\t"		\
+		".popsection\n\t"
+
+#endif
+
+/* Per-cpu-id indexing. */
+
+#define RSEQ_TEMPLATE_CPU_ID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-x86-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-x86-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_CPU_ID
+
+/* Per-mm-cid indexing. */
+
+#define RSEQ_TEMPLATE_MM_CID
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-x86-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+
+#define RSEQ_TEMPLATE_MO_RELEASE
+#include "rseq-x86-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELEASE
+#undef RSEQ_TEMPLATE_MM_CID
+
+/* APIs which are not based on cpu ids. */
+
+#define RSEQ_TEMPLATE_CPU_ID_NONE
+#define RSEQ_TEMPLATE_MO_RELAXED
+#include "rseq-x86-bits.h"
+#undef RSEQ_TEMPLATE_MO_RELAXED
+#undef RSEQ_TEMPLATE_CPU_ID_NONE
diff --git a/tools/testing/selftests/rseq/rseq.c b/tools/testing/selftests/rseq/rseq.c
new file mode 100644
index 000000000000..a736727b83c1
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq.c
@@ -0,0 +1,308 @@
+// SPDX-License-Identifier: LGPL-2.1
+/*
+ * rseq.c
+ *
+ * Copyright (C) 2016 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; only
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <syscall.h>
+#include <assert.h>
+#include <signal.h>
+#include <limits.h>
+#include <dlfcn.h>
+#include <stddef.h>
+#include <sys/auxv.h>
+#include <linux/auxvec.h>
+
+#include <linux/compiler.h>
+
+#include "kselftest.h"
+#include "rseq.h"
+
+/*
+ * Define weak versions to play nice with binaries that are statically linked
+ * against a libc that doesn't support registering its own rseq.
+ */
+extern __weak ptrdiff_t __rseq_offset;
+extern __weak unsigned int __rseq_size;
+extern __weak unsigned int __rseq_flags;
+
+static const ptrdiff_t *libc_rseq_offset_p = &__rseq_offset;
+static const unsigned int *libc_rseq_size_p = &__rseq_size;
+static const unsigned int *libc_rseq_flags_p = &__rseq_flags;
+
+/* Offset from the thread pointer to the rseq area. */
+ptrdiff_t rseq_offset;
+
+/*
+ * Size of the registered rseq area. 0 if the registration was
+ * unsuccessful.
+ */
+unsigned int rseq_size = -1U;
+
+/* Flags used during rseq registration.  */
+unsigned int rseq_flags;
+
+static int rseq_ownership;
+
+/* Allocate a large area for the TLS. */
+#define RSEQ_THREAD_AREA_ALLOC_SIZE	1024
+
+/* Original struct rseq feature size is 20 bytes. */
+#define ORIG_RSEQ_FEATURE_SIZE		20
+
+/* Original struct rseq allocation size is 32 bytes. */
+#define ORIG_RSEQ_ALLOC_SIZE		32
+
+/*
+ * Use a union to ensure we allocate a TLS area of 1024 bytes to accomodate an
+ * rseq registration that is larger than the current rseq ABI.
+ */
+union rseq_tls {
+	struct rseq_abi abi;
+	char dummy[RSEQ_THREAD_AREA_ALLOC_SIZE];
+};
+
+static
+__thread union rseq_tls __rseq __attribute__((tls_model("initial-exec"))) = {
+	.abi = {
+		.cpu_id = RSEQ_ABI_CPU_ID_UNINITIALIZED,
+	},
+};
+
+static int sys_rseq(struct rseq_abi *rseq_abi, uint32_t rseq_len,
+		    int flags, uint32_t sig)
+{
+	return syscall(__NR_rseq, rseq_abi, rseq_len, flags, sig);
+}
+
+static int sys_getcpu(unsigned *cpu, unsigned *node)
+{
+	return syscall(__NR_getcpu, cpu, node, NULL);
+}
+
+bool rseq_available(void)
+{
+	int rc;
+
+	rc = sys_rseq(NULL, 0, 0, 0);
+	if (rc != -1)
+		abort();
+	switch (errno) {
+	case ENOSYS:
+		return false;
+	case EINVAL:
+		return true;
+	default:
+		abort();
+	}
+}
+
+/* The rseq areas need to be at least 32 bytes. */
+static
+unsigned int get_rseq_min_alloc_size(void)
+{
+	unsigned int alloc_size = rseq_size;
+
+	if (alloc_size < ORIG_RSEQ_ALLOC_SIZE)
+		alloc_size = ORIG_RSEQ_ALLOC_SIZE;
+	return alloc_size;
+}
+
+/*
+ * Return the feature size supported by the kernel.
+ *
+ * Depending on the value returned by getauxval(AT_RSEQ_FEATURE_SIZE):
+ *
+ * 0:   Return ORIG_RSEQ_FEATURE_SIZE (20)
+ * > 0: Return the value from getauxval(AT_RSEQ_FEATURE_SIZE).
+ *
+ * It should never return a value below ORIG_RSEQ_FEATURE_SIZE.
+ */
+static
+unsigned int get_rseq_kernel_feature_size(void)
+{
+	unsigned long auxv_rseq_feature_size, auxv_rseq_align;
+
+	auxv_rseq_align = getauxval(AT_RSEQ_ALIGN);
+	assert(!auxv_rseq_align || auxv_rseq_align <= RSEQ_THREAD_AREA_ALLOC_SIZE);
+
+	auxv_rseq_feature_size = getauxval(AT_RSEQ_FEATURE_SIZE);
+	assert(!auxv_rseq_feature_size || auxv_rseq_feature_size <= RSEQ_THREAD_AREA_ALLOC_SIZE);
+	if (auxv_rseq_feature_size)
+		return auxv_rseq_feature_size;
+	else
+		return ORIG_RSEQ_FEATURE_SIZE;
+}
+
+int rseq_register_current_thread(void)
+{
+	int rc;
+
+	if (!rseq_ownership) {
+		/* Treat libc's ownership as a successful registration. */
+		return 0;
+	}
+	rc = sys_rseq(&__rseq.abi, get_rseq_min_alloc_size(), 0, RSEQ_SIG);
+	if (rc) {
+		/*
+		 * After at least one thread has registered successfully
+		 * (rseq_size > 0), the registration of other threads should
+		 * never fail.
+		 */
+		if (RSEQ_READ_ONCE(rseq_size) > 0) {
+			/* Incoherent success/failure within process. */
+			abort();
+		}
+		return -1;
+	}
+	assert(rseq_current_cpu_raw() >= 0);
+
+	/*
+	 * The first thread to register sets the rseq_size to mimic the libc
+	 * behavior.
+	 */
+	if (RSEQ_READ_ONCE(rseq_size) == 0) {
+		RSEQ_WRITE_ONCE(rseq_size, get_rseq_kernel_feature_size());
+	}
+
+	return 0;
+}
+
+int rseq_unregister_current_thread(void)
+{
+	int rc;
+
+	if (!rseq_ownership) {
+		/* Treat libc's ownership as a successful unregistration. */
+		return 0;
+	}
+	rc = sys_rseq(&__rseq.abi, get_rseq_min_alloc_size(), RSEQ_ABI_FLAG_UNREGISTER, RSEQ_SIG);
+	if (rc)
+		return -1;
+	return 0;
+}
+
+static __attribute__((constructor))
+void rseq_init(void)
+{
+	/*
+	 * If the libc's registered rseq size isn't already valid, it may be
+	 * because the binary is dynamically linked and not necessarily due to
+	 * libc not having registered a restartable sequence.  Try to find the
+	 * symbols if that's the case.
+	 */
+	if (!libc_rseq_size_p || !*libc_rseq_size_p) {
+		libc_rseq_offset_p = dlsym(RTLD_NEXT, "__rseq_offset");
+		libc_rseq_size_p = dlsym(RTLD_NEXT, "__rseq_size");
+		libc_rseq_flags_p = dlsym(RTLD_NEXT, "__rseq_flags");
+	}
+	if (libc_rseq_size_p && libc_rseq_offset_p && libc_rseq_flags_p &&
+			*libc_rseq_size_p != 0) {
+		unsigned int libc_rseq_size;
+
+		/* rseq registration owned by glibc */
+		rseq_offset = *libc_rseq_offset_p;
+		libc_rseq_size = *libc_rseq_size_p;
+		rseq_flags = *libc_rseq_flags_p;
+
+		/*
+		 * Previous versions of glibc expose the value
+		 * 32 even though the kernel only supported 20
+		 * bytes initially. Therefore treat 32 as a
+		 * special-case. glibc 2.40 exposes a 20 bytes
+		 * __rseq_size without using getauxval(3) to
+		 * query the supported size, while still allocating a 32
+		 * bytes area. Also treat 20 as a special-case.
+		 *
+		 * Special-cases are handled by using the following
+		 * value as active feature set size:
+		 *
+		 *   rseq_size = min(32, get_rseq_kernel_feature_size())
+		 */
+		switch (libc_rseq_size) {
+		case ORIG_RSEQ_FEATURE_SIZE:
+			fallthrough;
+		case ORIG_RSEQ_ALLOC_SIZE:
+		{
+			unsigned int rseq_kernel_feature_size = get_rseq_kernel_feature_size();
+
+			if (rseq_kernel_feature_size < ORIG_RSEQ_ALLOC_SIZE)
+				rseq_size = rseq_kernel_feature_size;
+			else
+				rseq_size = ORIG_RSEQ_ALLOC_SIZE;
+			break;
+		}
+		default:
+			/* Otherwise just use the __rseq_size from libc as rseq_size. */
+			rseq_size = libc_rseq_size;
+			break;
+		}
+		return;
+	}
+	rseq_ownership = 1;
+
+	/* Calculate the offset of the rseq area from the thread pointer. */
+	rseq_offset = (void *)&__rseq.abi - rseq_thread_pointer();
+
+	/* rseq flags are deprecated, always set to 0. */
+	rseq_flags = 0;
+
+	/*
+	 * Set the size to 0 until at least one thread registers to mimic the
+	 * libc behavior.
+	 */
+	rseq_size = 0;
+}
+
+static __attribute__((destructor))
+void rseq_exit(void)
+{
+	if (!rseq_ownership)
+		return;
+	rseq_offset = 0;
+	rseq_size = -1U;
+	rseq_ownership = 0;
+}
+
+int32_t rseq_fallback_current_cpu(void)
+{
+	int32_t cpu;
+
+	cpu = sched_getcpu();
+	if (cpu < 0) {
+		perror("sched_getcpu()");
+		abort();
+	}
+	return cpu;
+}
+
+int32_t rseq_fallback_current_node(void)
+{
+	uint32_t cpu_id, node_id;
+	int ret;
+
+	ret = sys_getcpu(&cpu_id, &node_id);
+	if (ret) {
+		perror("sys_getcpu()");
+		return ret;
+	}
+	return (int32_t) node_id;
+}
diff --git a/tools/testing/selftests/rseq/rseq.h b/tools/testing/selftests/rseq/rseq.h
new file mode 100644
index 000000000000..f51a5fdb0444
--- /dev/null
+++ b/tools/testing/selftests/rseq/rseq.h
@@ -0,0 +1,392 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * rseq.h
+ *
+ * (C) Copyright 2016-2018 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ */
+
+#ifndef RSEQ_H
+#define RSEQ_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <pthread.h>
+#include <signal.h>
+#include <sched.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include "rseq-abi.h"
+#include "compiler.h"
+
+#ifndef rseq_sizeof_field
+#define rseq_sizeof_field(TYPE, MEMBER) sizeof((((TYPE *)0)->MEMBER))
+#endif
+
+#ifndef rseq_offsetofend
+#define rseq_offsetofend(TYPE, MEMBER) \
+	(offsetof(TYPE, MEMBER)	+ rseq_sizeof_field(TYPE, MEMBER))
+#endif
+
+/*
+ * Empty code injection macros, override when testing.
+ * It is important to consider that the ASM injection macros need to be
+ * fully reentrant (e.g. do not modify the stack).
+ */
+#ifndef RSEQ_INJECT_ASM
+#define RSEQ_INJECT_ASM(n)
+#endif
+
+#ifndef RSEQ_INJECT_C
+#define RSEQ_INJECT_C(n)
+#endif
+
+#ifndef RSEQ_INJECT_INPUT
+#define RSEQ_INJECT_INPUT
+#endif
+
+#ifndef RSEQ_INJECT_CLOBBER
+#define RSEQ_INJECT_CLOBBER
+#endif
+
+#ifndef RSEQ_INJECT_FAILED
+#define RSEQ_INJECT_FAILED
+#endif
+
+#include "rseq-thread-pointer.h"
+
+/* Offset from the thread pointer to the rseq area. */
+extern ptrdiff_t rseq_offset;
+
+/*
+ * The rseq ABI is composed of extensible feature fields. The extensions
+ * are done by appending additional fields at the end of the structure.
+ * The rseq_size defines the size of the active feature set which can be
+ * used by the application for the current rseq registration. Features
+ * starting at offset >= rseq_size are inactive and should not be used.
+ *
+ * The rseq_size is the intersection between the available allocation
+ * size for the rseq area and the feature size supported by the kernel.
+ * unsuccessful.
+ */
+extern unsigned int rseq_size;
+
+/* Flags used during rseq registration. */
+extern unsigned int rseq_flags;
+
+enum rseq_mo {
+	RSEQ_MO_RELAXED = 0,
+	RSEQ_MO_CONSUME = 1,	/* Unused */
+	RSEQ_MO_ACQUIRE = 2,	/* Unused */
+	RSEQ_MO_RELEASE = 3,
+	RSEQ_MO_ACQ_REL = 4,	/* Unused */
+	RSEQ_MO_SEQ_CST = 5,	/* Unused */
+};
+
+enum rseq_percpu_mode {
+	RSEQ_PERCPU_CPU_ID = 0,
+	RSEQ_PERCPU_MM_CID = 1,
+};
+
+static inline struct rseq_abi *rseq_get_abi(void)
+{
+	return (struct rseq_abi *) ((uintptr_t) rseq_thread_pointer() + rseq_offset);
+}
+
+#define rseq_likely(x)		__builtin_expect(!!(x), 1)
+#define rseq_unlikely(x)	__builtin_expect(!!(x), 0)
+#define rseq_barrier()		__asm__ __volatile__("" : : : "memory")
+
+#define RSEQ_ACCESS_ONCE(x)	(*(__volatile__  __typeof__(x) *)&(x))
+#define RSEQ_WRITE_ONCE(x, v)	__extension__ ({ RSEQ_ACCESS_ONCE(x) = (v); })
+#define RSEQ_READ_ONCE(x)	RSEQ_ACCESS_ONCE(x)
+
+#define __rseq_str_1(x)	#x
+#define __rseq_str(x)		__rseq_str_1(x)
+
+#define rseq_log(fmt, args...)						       \
+	fprintf(stderr, fmt "(in %s() at " __FILE__ ":" __rseq_str(__LINE__)"\n", \
+		## args, __func__)
+
+#define rseq_bug(fmt, args...)		\
+	do {				\
+		rseq_log(fmt, ##args);	\
+		abort();		\
+	} while (0)
+
+#if defined(__x86_64__) || defined(__i386__)
+#include <rseq-x86.h>
+#elif defined(__ARMEL__)
+#include <rseq-arm.h>
+#elif defined (__AARCH64EL__)
+#include <rseq-arm64.h>
+#elif defined(__PPC__)
+#include <rseq-ppc.h>
+#elif defined(__mips__)
+#include <rseq-mips.h>
+#elif defined(__s390__)
+#include <rseq-s390.h>
+#elif defined(__riscv)
+#include <rseq-riscv.h>
+#elif defined(__or1k__)
+#include <rseq-or1k.h>
+#else
+#error unsupported target
+#endif
+
+/*
+ * Register rseq for the current thread. This needs to be called once
+ * by any thread which uses restartable sequences, before they start
+ * using restartable sequences, to ensure restartable sequences
+ * succeed. A restartable sequence executed from a non-registered
+ * thread will always fail.
+ */
+int rseq_register_current_thread(void);
+
+/*
+ * Unregister rseq for current thread.
+ */
+int rseq_unregister_current_thread(void);
+
+/*
+ * Restartable sequence fallback for reading the current CPU number.
+ */
+int32_t rseq_fallback_current_cpu(void);
+
+/*
+ * Restartable sequence fallback for reading the current node number.
+ */
+int32_t rseq_fallback_current_node(void);
+
+/*
+ * Returns true if rseq is supported.
+ */
+bool rseq_available(void);
+
+/*
+ * Values returned can be either the current CPU number, -1 (rseq is
+ * uninitialized), or -2 (rseq initialization has failed).
+ */
+static inline int32_t rseq_current_cpu_raw(void)
+{
+	return RSEQ_ACCESS_ONCE(rseq_get_abi()->cpu_id);
+}
+
+/*
+ * Returns a possible CPU number, which is typically the current CPU.
+ * The returned CPU number can be used to prepare for an rseq critical
+ * section, which will confirm whether the cpu number is indeed the
+ * current one, and whether rseq is initialized.
+ *
+ * The CPU number returned by rseq_cpu_start should always be validated
+ * by passing it to a rseq asm sequence, or by comparing it to the
+ * return value of rseq_current_cpu_raw() if the rseq asm sequence
+ * does not need to be invoked.
+ */
+static inline uint32_t rseq_cpu_start(void)
+{
+	return RSEQ_ACCESS_ONCE(rseq_get_abi()->cpu_id_start);
+}
+
+static inline uint32_t rseq_current_cpu(void)
+{
+	int32_t cpu;
+
+	cpu = rseq_current_cpu_raw();
+	if (rseq_unlikely(cpu < 0))
+		cpu = rseq_fallback_current_cpu();
+	return cpu;
+}
+
+static inline bool rseq_node_id_available(void)
+{
+	return (int) rseq_size >= rseq_offsetofend(struct rseq_abi, node_id);
+}
+
+/*
+ * Current NUMA node number.
+ */
+static inline uint32_t rseq_current_node_id(void)
+{
+	assert(rseq_node_id_available());
+	return RSEQ_ACCESS_ONCE(rseq_get_abi()->node_id);
+}
+
+static inline bool rseq_mm_cid_available(void)
+{
+	return (int) rseq_size >= rseq_offsetofend(struct rseq_abi, mm_cid);
+}
+
+static inline uint32_t rseq_current_mm_cid(void)
+{
+	return RSEQ_ACCESS_ONCE(rseq_get_abi()->mm_cid);
+}
+
+static inline void rseq_clear_rseq_cs(void)
+{
+	RSEQ_WRITE_ONCE(rseq_get_abi()->rseq_cs.arch.ptr, 0);
+}
+
+/*
+ * rseq_prepare_unload() should be invoked by each thread executing a rseq
+ * critical section at least once between their last critical section and
+ * library unload of the library defining the rseq critical section (struct
+ * rseq_cs) or the code referred to by the struct rseq_cs start_ip and
+ * post_commit_offset fields. This also applies to use of rseq in code
+ * generated by JIT: rseq_prepare_unload() should be invoked at least once by
+ * each thread executing a rseq critical section before reclaim of the memory
+ * holding the struct rseq_cs or reclaim of the code pointed to by struct
+ * rseq_cs start_ip and post_commit_offset fields.
+ */
+static inline void rseq_prepare_unload(void)
+{
+	rseq_clear_rseq_cs();
+}
+
+static inline __attribute__((always_inline))
+int rseq_cmpeqv_storev(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+		       intptr_t *v, intptr_t expect,
+		       intptr_t newv, int cpu)
+{
+	if (rseq_mo != RSEQ_MO_RELAXED)
+		return -1;
+	switch (percpu_mode) {
+	case RSEQ_PERCPU_CPU_ID:
+		return rseq_cmpeqv_storev_relaxed_cpu_id(v, expect, newv, cpu);
+	case RSEQ_PERCPU_MM_CID:
+		return rseq_cmpeqv_storev_relaxed_mm_cid(v, expect, newv, cpu);
+	}
+	return -1;
+}
+
+/*
+ * Compare @v against @expectnot. When it does _not_ match, load @v
+ * into @load, and store the content of *@v + voffp into @v.
+ */
+static inline __attribute__((always_inline))
+int rseq_cmpnev_storeoffp_load(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+			       intptr_t *v, intptr_t expectnot, long voffp, intptr_t *load,
+			       int cpu)
+{
+	if (rseq_mo != RSEQ_MO_RELAXED)
+		return -1;
+	switch (percpu_mode) {
+	case RSEQ_PERCPU_CPU_ID:
+		return rseq_cmpnev_storeoffp_load_relaxed_cpu_id(v, expectnot, voffp, load, cpu);
+	case RSEQ_PERCPU_MM_CID:
+		return rseq_cmpnev_storeoffp_load_relaxed_mm_cid(v, expectnot, voffp, load, cpu);
+	}
+	return -1;
+}
+
+static inline __attribute__((always_inline))
+int rseq_addv(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+	      intptr_t *v, intptr_t count, int cpu)
+{
+	if (rseq_mo != RSEQ_MO_RELAXED)
+		return -1;
+	switch (percpu_mode) {
+	case RSEQ_PERCPU_CPU_ID:
+		return rseq_addv_relaxed_cpu_id(v, count, cpu);
+	case RSEQ_PERCPU_MM_CID:
+		return rseq_addv_relaxed_mm_cid(v, count, cpu);
+	}
+	return -1;
+}
+
+#ifdef RSEQ_ARCH_HAS_OFFSET_DEREF_ADDV
+/*
+ *   pval = *(ptr+off)
+ *  *pval += inc;
+ */
+static inline __attribute__((always_inline))
+int rseq_offset_deref_addv(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+			   intptr_t *ptr, long off, intptr_t inc, int cpu)
+{
+	if (rseq_mo != RSEQ_MO_RELAXED)
+		return -1;
+	switch (percpu_mode) {
+	case RSEQ_PERCPU_CPU_ID:
+		return rseq_offset_deref_addv_relaxed_cpu_id(ptr, off, inc, cpu);
+	case RSEQ_PERCPU_MM_CID:
+		return rseq_offset_deref_addv_relaxed_mm_cid(ptr, off, inc, cpu);
+	}
+	return -1;
+}
+#endif
+
+static inline __attribute__((always_inline))
+int rseq_cmpeqv_trystorev_storev(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+				 intptr_t *v, intptr_t expect,
+				 intptr_t *v2, intptr_t newv2,
+				 intptr_t newv, int cpu)
+{
+	switch (rseq_mo) {
+	case RSEQ_MO_RELAXED:
+		switch (percpu_mode) {
+		case RSEQ_PERCPU_CPU_ID:
+			return rseq_cmpeqv_trystorev_storev_relaxed_cpu_id(v, expect, v2, newv2, newv, cpu);
+		case RSEQ_PERCPU_MM_CID:
+			return rseq_cmpeqv_trystorev_storev_relaxed_mm_cid(v, expect, v2, newv2, newv, cpu);
+		}
+		return -1;
+	case RSEQ_MO_RELEASE:
+		switch (percpu_mode) {
+		case RSEQ_PERCPU_CPU_ID:
+			return rseq_cmpeqv_trystorev_storev_release_cpu_id(v, expect, v2, newv2, newv, cpu);
+		case RSEQ_PERCPU_MM_CID:
+			return rseq_cmpeqv_trystorev_storev_release_mm_cid(v, expect, v2, newv2, newv, cpu);
+		}
+		return -1;
+	default:
+		return -1;
+	}
+}
+
+static inline __attribute__((always_inline))
+int rseq_cmpeqv_cmpeqv_storev(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+			      intptr_t *v, intptr_t expect,
+			      intptr_t *v2, intptr_t expect2,
+			      intptr_t newv, int cpu)
+{
+	if (rseq_mo != RSEQ_MO_RELAXED)
+		return -1;
+	switch (percpu_mode) {
+	case RSEQ_PERCPU_CPU_ID:
+		return rseq_cmpeqv_cmpeqv_storev_relaxed_cpu_id(v, expect, v2, expect2, newv, cpu);
+	case RSEQ_PERCPU_MM_CID:
+		return rseq_cmpeqv_cmpeqv_storev_relaxed_mm_cid(v, expect, v2, expect2, newv, cpu);
+	}
+	return -1;
+}
+
+static inline __attribute__((always_inline))
+int rseq_cmpeqv_trymemcpy_storev(enum rseq_mo rseq_mo, enum rseq_percpu_mode percpu_mode,
+				 intptr_t *v, intptr_t expect,
+				 void *dst, void *src, size_t len,
+				 intptr_t newv, int cpu)
+{
+	switch (rseq_mo) {
+	case RSEQ_MO_RELAXED:
+		switch (percpu_mode) {
+		case RSEQ_PERCPU_CPU_ID:
+			return rseq_cmpeqv_trymemcpy_storev_relaxed_cpu_id(v, expect, dst, src, len, newv, cpu);
+		case RSEQ_PERCPU_MM_CID:
+			return rseq_cmpeqv_trymemcpy_storev_relaxed_mm_cid(v, expect, dst, src, len, newv, cpu);
+		}
+		return -1;
+	case RSEQ_MO_RELEASE:
+		switch (percpu_mode) {
+		case RSEQ_PERCPU_CPU_ID:
+			return rseq_cmpeqv_trymemcpy_storev_release_cpu_id(v, expect, dst, src, len, newv, cpu);
+		case RSEQ_PERCPU_MM_CID:
+			return rseq_cmpeqv_trymemcpy_storev_release_mm_cid(v, expect, dst, src, len, newv, cpu);
+		}
+		return -1;
+	default:
+		return -1;
+	}
+}
+
+#endif  /* RSEQ_H_ */
diff --git a/tools/testing/selftests/rseq/run_param_test.sh b/tools/testing/selftests/rseq/run_param_test.sh
new file mode 100755
index 000000000000..8d31426ab41f
--- /dev/null
+++ b/tools/testing/selftests/rseq/run_param_test.sh
@@ -0,0 +1,131 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0+ or MIT
+
+NR_CPUS=`grep '^processor' /proc/cpuinfo | wc -l`
+
+EXTRA_ARGS=${@}
+
+OLDIFS="$IFS"
+IFS=$'\n'
+TEST_LIST=(
+	"-T s"
+	"-T l"
+	"-T b"
+	"-T b -M"
+	"-T m"
+	"-T m -M"
+	"-T i"
+	"-T r"
+)
+
+TEST_NAME=(
+	"spinlock"
+	"list"
+	"buffer"
+	"buffer with barrier"
+	"memcpy"
+	"memcpy with barrier"
+	"increment"
+	"membarrier"
+)
+IFS="$OLDIFS"
+
+REPS=1000
+SLOW_REPS=100
+NR_THREADS=$((6*${NR_CPUS}))
+
+function do_tests()
+{
+	local i=0
+	while [ "$i" -lt "${#TEST_LIST[@]}" ]; do
+		echo "Running test ${TEST_NAME[$i]}"
+		./param_test ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
+		echo "Running compare-twice test ${TEST_NAME[$i]}"
+		./param_test_compare_twice ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
+
+		echo "Running mm_cid test ${TEST_NAME[$i]}"
+		./param_test_mm_cid ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
+		echo "Running mm_cid compare-twice test ${TEST_NAME[$i]}"
+		./param_test_mm_cid_compare_twice ${TEST_LIST[$i]} -r ${REPS} -t ${NR_THREADS} ${@} ${EXTRA_ARGS} || exit 1
+		let "i++"
+	done
+}
+
+echo "Default parameters"
+do_tests
+
+echo "Loop injection: 10000 loops"
+
+OLDIFS="$IFS"
+IFS=$'\n'
+INJECT_LIST=(
+	"1"
+	"2"
+	"3"
+	"4"
+	"5"
+	"6"
+	"7"
+	"8"
+	"9"
+)
+IFS="$OLDIFS"
+
+NR_LOOPS=10000
+
+i=0
+while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do
+	echo "Injecting at <${INJECT_LIST[$i]}>"
+	do_tests -${INJECT_LIST[i]} ${NR_LOOPS}
+	let "i++"
+done
+NR_LOOPS=
+
+function inject_blocking()
+{
+	OLDIFS="$IFS"
+	IFS=$'\n'
+	INJECT_LIST=(
+		"7"
+		"8"
+		"9"
+	)
+	IFS="$OLDIFS"
+
+	NR_LOOPS=-1
+
+	i=0
+	while [ "$i" -lt "${#INJECT_LIST[@]}" ]; do
+		echo "Injecting at <${INJECT_LIST[$i]}>"
+		do_tests -${INJECT_LIST[i]} -1 ${@}
+		let "i++"
+	done
+	NR_LOOPS=
+}
+
+echo "Yield injection (25%)"
+inject_blocking -m 4 -y
+
+echo "Yield injection (50%)"
+inject_blocking -m 2 -y
+
+echo "Yield injection (100%)"
+inject_blocking -m 1 -y
+
+echo "Kill injection (25%)"
+inject_blocking -m 4 -k
+
+echo "Kill injection (50%)"
+inject_blocking -m 2 -k
+
+echo "Kill injection (100%)"
+inject_blocking -m 1 -k
+
+echo "Sleep injection (1ms, 25%)"
+inject_blocking -m 4 -s 1
+
+echo "Sleep injection (1ms, 50%)"
+inject_blocking -m 2 -s 1
+
+echo "Sleep injection (1ms, 100%)"
+inject_blocking -m 1 -s 1
diff --git a/tools/testing/selftests/rseq/run_syscall_errors_test.sh b/tools/testing/selftests/rseq/run_syscall_errors_test.sh
new file mode 100755
index 000000000000..9272246b39f2
--- /dev/null
+++ b/tools/testing/selftests/rseq/run_syscall_errors_test.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+# SPDX-License-Identifier: MIT
+# SPDX-FileCopyrightText: 2024 Michael Jeanson <mjeanson@efficios.com>
+
+GLIBC_TUNABLES="${GLIBC_TUNABLES:-}:glibc.pthread.rseq=0" ./syscall_errors_test
diff --git a/tools/testing/selftests/rseq/settings b/tools/testing/selftests/rseq/settings
new file mode 100644
index 000000000000..e7b9417537fb
--- /dev/null
+++ b/tools/testing/selftests/rseq/settings
@@ -0,0 +1 @@
+timeout=0
diff --git a/tools/testing/selftests/rseq/syscall_errors_test.c b/tools/testing/selftests/rseq/syscall_errors_test.c
new file mode 100644
index 000000000000..a5d9e1f8a2dc
--- /dev/null
+++ b/tools/testing/selftests/rseq/syscall_errors_test.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: MIT
+// SPDX-FileCopyrightText: 2024 Michael Jeanson <mjeanson@efficios.com>
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <assert.h>
+#include <stdint.h>
+#include <syscall.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "rseq.h"
+
+static int sys_rseq(void *rseq_abi, uint32_t rseq_len,
+		    int flags, uint32_t sig)
+{
+	return syscall(__NR_rseq, rseq_abi, rseq_len, flags, sig);
+}
+
+/*
+ * Check the value of errno on some expected failures of the rseq syscall.
+ */
+
+int main(void)
+{
+	struct rseq_abi *global_rseq = rseq_get_abi();
+	int ret;
+	int errno_copy;
+
+	if (!rseq_available()) {
+		fprintf(stderr, "rseq syscall unavailable");
+		goto error;
+	}
+
+	/* The current thread is NOT registered. */
+
+	/* EINVAL */
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, -1, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Registration with invalid flag fails with errno set to EINVAL (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EINVAL)
+		goto error;
+
+	errno = 0;
+	ret = sys_rseq((char *) global_rseq + 1, 32, 0, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Registration with unaligned rseq_abi fails with errno set to EINVAL (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EINVAL)
+		goto error;
+
+	errno = 0;
+	ret = sys_rseq(global_rseq, 31, 0, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Registration with invalid size fails with errno set to EINVAL (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EINVAL)
+		goto error;
+
+
+#if defined(__LP64__) && (!defined(__s390__) && !defined(__s390x__))
+	/*
+	 * We haven't found a reliable way to find an invalid address when
+	 * running a 32bit userspace on a 64bit kernel, so only run this test
+	 * on 64bit builds for the moment.
+	 *
+	 * Also exclude architectures that select
+	 * CONFIG_ALTERNATE_USER_ADDRESS_SPACE where the kernel and userspace
+	 * have their own address space and this failure can't happen.
+	 */
+
+	/* EFAULT */
+	errno = 0;
+	ret = sys_rseq((void *) -4096UL, 32, 0, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Registration with invalid address fails with errno set to EFAULT (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EFAULT)
+		goto error;
+#endif
+
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, 0, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Registration succeeds for the current thread (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret != 0 && errno != 0)
+		goto error;
+
+	/* The current thread is registered. */
+
+	/* EBUSY */
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, 0, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Double registration fails with errno set to EBUSY (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EBUSY)
+		goto error;
+
+	/* EPERM */
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, RSEQ_ABI_FLAG_UNREGISTER, RSEQ_SIG + 1);
+	errno_copy = errno;
+	fprintf(stderr, "Unregistration with wrong RSEQ_SIG fails with errno to EPERM (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EPERM)
+		goto error;
+
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, RSEQ_ABI_FLAG_UNREGISTER, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Unregistration succeeds for the current thread (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret != 0)
+		goto error;
+
+	errno = 0;
+	ret = sys_rseq(global_rseq, 32, RSEQ_ABI_FLAG_UNREGISTER, RSEQ_SIG);
+	errno_copy = errno;
+	fprintf(stderr, "Double unregistration fails with errno set to EINVAL (ret = %d, errno = %s)\n", ret, strerrorname_np(errno_copy));
+	if (ret == 0 || errno_copy != EINVAL)
+		goto error;
+
+	return 0;
+error:
+	return -1;
+}
diff --git a/tools/testing/selftests/rtc/.gitignore b/tools/testing/selftests/rtc/.gitignore
new file mode 100644
index 000000000000..a2afe7994e85
--- /dev/null
+++ b/tools/testing/selftests/rtc/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+rtctest
diff --git a/tools/testing/selftests/rtc/Makefile b/tools/testing/selftests/rtc/Makefile
new file mode 100644
index 000000000000..547c244a2ca5
--- /dev/null
+++ b/tools/testing/selftests/rtc/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -O3 -Wl,-no-as-needed -Wall -I$(top_srcdir)/usr/include
+LDLIBS += -lrt -lpthread -lm
+
+TEST_GEN_PROGS = rtctest
+
+TEST_FILES := settings
+
+include ../lib.mk
diff --git a/tools/testing/selftests/rtc/rtctest.c b/tools/testing/selftests/rtc/rtctest.c
new file mode 100644
index 000000000000..8047d9879039
--- /dev/null
+++ b/tools/testing/selftests/rtc/rtctest.c
@@ -0,0 +1,509 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Real Time Clock Driver Test Program
+ *
+ * Copyright (c) 2018 Alexandre Belloni <alexandre.belloni@bootlin.com>
+ */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/rtc.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <time.h>
+#include <unistd.h>
+
+#include "kselftest_harness.h"
+
+#define NUM_UIE 3
+#define ALARM_DELTA 3
+#define READ_LOOP_DURATION_SEC 30
+#define READ_LOOP_SLEEP_MS 11
+
+static char *rtc_file = "/dev/rtc0";
+
+enum rtc_alarm_state {
+	RTC_ALARM_UNKNOWN,
+	RTC_ALARM_ENABLED,
+	RTC_ALARM_DISABLED,
+	RTC_ALARM_RES_MINUTE,
+};
+
+FIXTURE(rtc) {
+	int fd;
+};
+
+FIXTURE_SETUP(rtc) {
+	self->fd = open(rtc_file, O_RDONLY);
+}
+
+FIXTURE_TEARDOWN(rtc) {
+	close(self->fd);
+}
+
+TEST_F(rtc, date_read) {
+	int rc;
+	struct rtc_time rtc_tm;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	/* Read the RTC time/date */
+	rc = ioctl(self->fd, RTC_RD_TIME, &rtc_tm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Current RTC date/time is %02d/%02d/%02d %02d:%02d:%02d.",
+	       rtc_tm.tm_mday, rtc_tm.tm_mon + 1, rtc_tm.tm_year + 1900,
+	       rtc_tm.tm_hour, rtc_tm.tm_min, rtc_tm.tm_sec);
+}
+
+static time_t rtc_time_to_timestamp(struct rtc_time *rtc_time)
+{
+	struct tm tm_time = {
+	       .tm_sec = rtc_time->tm_sec,
+	       .tm_min = rtc_time->tm_min,
+	       .tm_hour = rtc_time->tm_hour,
+	       .tm_mday = rtc_time->tm_mday,
+	       .tm_mon = rtc_time->tm_mon,
+	       .tm_year = rtc_time->tm_year,
+	};
+
+	return mktime(&tm_time);
+}
+
+static void nanosleep_with_retries(long ns)
+{
+	struct timespec req = {
+		.tv_sec = 0,
+		.tv_nsec = ns,
+	};
+	struct timespec rem;
+
+	while (nanosleep(&req, &rem) != 0) {
+		req.tv_sec = rem.tv_sec;
+		req.tv_nsec = rem.tv_nsec;
+	}
+}
+
+static enum rtc_alarm_state get_rtc_alarm_state(int fd, int need_seconds)
+{
+	struct rtc_param param = { 0 };
+	int rc;
+
+	/* Validate kernel reflects unsupported RTC alarm state */
+	param.param = RTC_PARAM_FEATURES;
+	param.index = 0;
+	rc = ioctl(fd, RTC_PARAM_GET, &param);
+	if (rc < 0)
+		return RTC_ALARM_UNKNOWN;
+
+	if ((param.uvalue & _BITUL(RTC_FEATURE_ALARM)) == 0)
+		return RTC_ALARM_DISABLED;
+
+	/* Check if alarm has desired granularity */
+	if (need_seconds && (param.uvalue & _BITUL(RTC_FEATURE_ALARM_RES_MINUTE)))
+		return RTC_ALARM_RES_MINUTE;
+
+	return RTC_ALARM_ENABLED;
+}
+
+TEST_F_TIMEOUT(rtc, date_read_loop, READ_LOOP_DURATION_SEC + 2) {
+	int rc;
+	long iter_count = 0;
+	struct rtc_time rtc_tm;
+	time_t start_rtc_read, prev_rtc_read;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	TH_LOG("Continuously reading RTC time for %ds (with %dms breaks after every read).",
+	       READ_LOOP_DURATION_SEC, READ_LOOP_SLEEP_MS);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &rtc_tm);
+	ASSERT_NE(-1, rc);
+	start_rtc_read = rtc_time_to_timestamp(&rtc_tm);
+	prev_rtc_read = start_rtc_read;
+
+	do  {
+		time_t rtc_read;
+
+		rc = ioctl(self->fd, RTC_RD_TIME, &rtc_tm);
+		ASSERT_NE(-1, rc);
+
+		rtc_read = rtc_time_to_timestamp(&rtc_tm);
+		/* Time should not go backwards */
+		ASSERT_LE(prev_rtc_read, rtc_read);
+		/* Time should not increase more then 1s at a time */
+		ASSERT_GE(prev_rtc_read + 1, rtc_read);
+
+		/* Sleep 11ms to avoid killing / overheating the RTC */
+		nanosleep_with_retries(READ_LOOP_SLEEP_MS * 1000000);
+
+		prev_rtc_read = rtc_read;
+		iter_count++;
+	} while (prev_rtc_read <= start_rtc_read + READ_LOOP_DURATION_SEC);
+
+	TH_LOG("Performed %ld RTC time reads.", iter_count);
+}
+
+TEST_F_TIMEOUT(rtc, uie_read, NUM_UIE + 2) {
+	int i, rc, irq = 0;
+	unsigned long data;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	/* Turn on update interrupts */
+	rc = ioctl(self->fd, RTC_UIE_ON, 0);
+	if (rc == -1) {
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip update IRQs not supported.");
+		return;
+	}
+
+	for (i = 0; i < NUM_UIE; i++) {
+		/* This read will block */
+		rc = read(self->fd, &data, sizeof(data));
+		ASSERT_NE(-1, rc);
+		irq++;
+	}
+
+	EXPECT_EQ(NUM_UIE, irq);
+
+	rc = ioctl(self->fd, RTC_UIE_OFF, 0);
+	ASSERT_NE(-1, rc);
+}
+
+TEST_F(rtc, uie_select) {
+	int i, rc, irq = 0;
+	unsigned long data;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	/* Turn on update interrupts */
+	rc = ioctl(self->fd, RTC_UIE_ON, 0);
+	if (rc == -1) {
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip update IRQs not supported.");
+		return;
+	}
+
+	for (i = 0; i < NUM_UIE; i++) {
+		struct timeval tv = { .tv_sec = 2 };
+		fd_set readfds;
+
+		FD_ZERO(&readfds);
+		FD_SET(self->fd, &readfds);
+		/* The select will wait until an RTC interrupt happens. */
+		rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+		ASSERT_NE(-1, rc);
+		ASSERT_NE(0, rc);
+
+		/* This read won't block */
+		rc = read(self->fd, &data, sizeof(unsigned long));
+		ASSERT_NE(-1, rc);
+		irq++;
+	}
+
+	EXPECT_EQ(NUM_UIE, irq);
+
+	rc = ioctl(self->fd, RTC_UIE_OFF, 0);
+	ASSERT_NE(-1, rc);
+}
+
+TEST_F(rtc, alarm_alm_set) {
+	struct timeval tv = { .tv_sec = ALARM_DELTA + 2 };
+	unsigned long data;
+	struct rtc_time tm;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+	enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	alarm_state = get_rtc_alarm_state(self->fd, 1);
+	if (alarm_state == RTC_ALARM_DISABLED)
+		SKIP(return, "Skipping test since alarms are not supported.");
+	if (alarm_state == RTC_ALARM_RES_MINUTE)
+		SKIP(return, "Skipping test since alarms has only minute granularity.");
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&tm) + ALARM_DELTA;
+	gmtime_r(&secs, (struct tm *)&tm);
+
+	rc = ioctl(self->fd, RTC_ALM_SET, &tm);
+	if (rc == -1) {
+		/*
+		 * Report error if rtc alarm was enabled. Fallback to check ioctl
+		 * error number if rtc alarm state is unknown.
+		 */
+		ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_ALM_READ, &tm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d:%02d:%02d.",
+	       tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+	/* Enable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_ON, 0);
+	ASSERT_NE(-1, rc);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
+
+	/* Disable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_OFF, 0);
+	ASSERT_NE(-1, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+	TH_LOG("data: %lx", data);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+TEST_F(rtc, alarm_wkalm_set) {
+	struct timeval tv = { .tv_sec = ALARM_DELTA + 2 };
+	struct rtc_wkalrm alarm = { 0 };
+	struct rtc_time tm;
+	unsigned long data;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+	enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	alarm_state = get_rtc_alarm_state(self->fd, 1);
+	if (alarm_state == RTC_ALARM_DISABLED)
+		SKIP(return, "Skipping test since alarms are not supported.");
+	if (alarm_state == RTC_ALARM_RES_MINUTE)
+		SKIP(return, "Skipping test since alarms has only minute granularity.");
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&alarm.time) + ALARM_DELTA;
+	gmtime_r(&secs, (struct tm *)&alarm.time);
+
+	alarm.enabled = 1;
+
+	rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);
+	if (rc == -1) {
+		/*
+		 * Report error if rtc alarm was enabled. Fallback to check ioctl
+		 * error number if rtc alarm state is unknown.
+		 */
+		ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_WKALM_RD, &alarm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d/%02d/%02d %02d:%02d:%02d.",
+	       alarm.time.tm_mday, alarm.time.tm_mon + 1,
+	       alarm.time.tm_year + 1900, alarm.time.tm_hour,
+	       alarm.time.tm_min, alarm.time.tm_sec);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+TEST_F_TIMEOUT(rtc, alarm_alm_set_minute, 65) {
+	struct timeval tv = { .tv_sec = 62 };
+	unsigned long data;
+	struct rtc_time tm;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+	enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	alarm_state = get_rtc_alarm_state(self->fd, 0);
+	if (alarm_state == RTC_ALARM_DISABLED)
+		SKIP(return, "Skipping test since alarms are not supported.");
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&tm) + 60 - tm.tm_sec;
+	gmtime_r(&secs, (struct tm *)&tm);
+
+	rc = ioctl(self->fd, RTC_ALM_SET, &tm);
+	if (rc == -1) {
+		/*
+		 * Report error if rtc alarm was enabled. Fallback to check ioctl
+		 * error number if rtc alarm state is unknown.
+		 */
+		ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_ALM_READ, &tm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d:%02d:%02d.",
+	       tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+	/* Enable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_ON, 0);
+	ASSERT_NE(-1, rc);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
+
+	/* Disable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_OFF, 0);
+	ASSERT_NE(-1, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+	TH_LOG("data: %lx", data);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+TEST_F_TIMEOUT(rtc, alarm_wkalm_set_minute, 65) {
+	struct timeval tv = { .tv_sec = 62 };
+	struct rtc_wkalrm alarm = { 0 };
+	struct rtc_time tm;
+	unsigned long data;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+	enum rtc_alarm_state alarm_state = RTC_ALARM_UNKNOWN;
+
+	if (self->fd == -1 && errno == ENOENT)
+		SKIP(return, "Skipping test since %s does not exist", rtc_file);
+	ASSERT_NE(-1, self->fd);
+
+	alarm_state = get_rtc_alarm_state(self->fd, 0);
+	if (alarm_state == RTC_ALARM_DISABLED)
+		SKIP(return, "Skipping test since alarms are not supported.");
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&alarm.time) + 60 - alarm.time.tm_sec;
+	gmtime_r(&secs, (struct tm *)&alarm.time);
+
+	alarm.enabled = 1;
+
+	rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);
+	if (rc == -1) {
+		/*
+		 * Report error if rtc alarm was enabled. Fallback to check ioctl
+		 * error number if rtc alarm state is unknown.
+		 */
+		ASSERT_EQ(RTC_ALARM_UNKNOWN, alarm_state);
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_WKALM_RD, &alarm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d/%02d/%02d %02d:%02d:%02d.",
+	       alarm.time.tm_mday, alarm.time.tm_mon + 1,
+	       alarm.time.tm_year + 1900, alarm.time.tm_hour,
+	       alarm.time.tm_min, alarm.time.tm_sec);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+int main(int argc, char **argv)
+{
+	int ret = -1;
+
+	switch (argc) {
+	case 2:
+		rtc_file = argv[1];
+		/* FALLTHROUGH */
+	case 1:
+		break;
+	default:
+		fprintf(stderr, "usage: %s [rtcdev]\n", argv[0]);
+		return 1;
+	}
+
+	/* Run the test if rtc_file is accessible */
+	if (access(rtc_file, R_OK) == 0)
+		ret = test_harness_run(argc, argv);
+	else
+		ksft_exit_skip("[SKIP]: Cannot access rtc file %s - Exiting\n",
+						rtc_file);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/rtc/settings b/tools/testing/selftests/rtc/settings
new file mode 100644
index 000000000000..0c1a2075d5f3
--- /dev/null
+++ b/tools/testing/selftests/rtc/settings
@@ -0,0 +1 @@
+timeout=210
diff --git a/tools/testing/selftests/run_kselftest.sh b/tools/testing/selftests/run_kselftest.sh
new file mode 100755
index 000000000000..d4be97498b32
--- /dev/null
+++ b/tools/testing/selftests/run_kselftest.sh
@@ -0,0 +1,127 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Run installed kselftest tests.
+#
+
+# Fallback to readlink if realpath is not available
+if which realpath > /dev/null; then
+        BASE_DIR=$(realpath $(dirname $0))
+else
+        BASE_DIR=$(readlink -f $(dirname $0))
+fi
+
+cd $BASE_DIR
+TESTS="$BASE_DIR"/kselftest-list.txt
+if [ ! -r "$TESTS" ] ; then
+	echo "$0: Could not find list of tests to run ($TESTS)" >&2
+	available=""
+else
+	available="$(cat "$TESTS")"
+fi
+
+. ./kselftest/runner.sh
+ROOT=$PWD
+
+usage()
+{
+	cat <<EOF
+Usage: $0 [OPTIONS]
+  -s | --summary		Print summary with detailed log in output.log (conflict with -p)
+  -p | --per-test-log		Print test log in /tmp with each test name (conflict with -s)
+  -t | --test COLLECTION:TEST	Run TEST from COLLECTION
+  -c | --collection COLLECTION	Run all tests from COLLECTION
+  -l | --list			List the available collection:test entries
+  -d | --dry-run		Don't actually run any tests
+  -f | --no-error-on-fail	Don't exit with an error just because tests failed
+  -n | --netns			Run each test in namespace
+  -h | --help			Show this usage info
+  -o | --override-timeout	Number of seconds after which we timeout
+EOF
+	exit $1
+}
+
+COLLECTIONS=""
+TESTS=""
+dryrun=""
+kselftest_override_timeout=""
+ERROR_ON_FAIL=true
+while true; do
+	case "$1" in
+		-s | --summary)
+			logfile="$BASE_DIR"/output.log
+			cat /dev/null > $logfile
+			shift ;;
+		-p | --per-test-log)
+			per_test_logging=1
+			shift ;;
+		-t | --test)
+			TESTS="$TESTS $2"
+			shift 2 ;;
+		-c | --collection)
+			COLLECTIONS="$COLLECTIONS $2"
+			shift 2 ;;
+		-l | --list)
+			echo "$available"
+			exit 0 ;;
+		-d | --dry-run)
+			dryrun="echo"
+			shift ;;
+		-f | --no-error-on-fail)
+			ERROR_ON_FAIL=false
+			shift ;;
+		-n | --netns)
+			RUN_IN_NETNS=1
+			shift ;;
+		-o | --override-timeout)
+			kselftest_override_timeout="$2"
+			shift 2 ;;
+		-h | --help)
+			usage 0 ;;
+		"")
+			break ;;
+		*)
+			usage 1 ;;
+	esac
+done
+
+# Add all selected collections to the explicit test list.
+if [ -n "$COLLECTIONS" ]; then
+	for collection in $COLLECTIONS ; do
+		found="$(echo "$available" | grep "^$collection:")"
+		if [ -z "$found" ] ; then
+			echo "No such collection '$collection'" >&2
+			exit 1
+		fi
+		TESTS="$TESTS $found"
+	done
+fi
+# Replace available test list with explicitly selected tests.
+if [ -n "$TESTS" ]; then
+	valid=""
+	for test in $TESTS ; do
+		found="$(echo "$available" | grep "^${test}$")"
+		if [ -z "$found" ] ; then
+			echo "No such test '$test'" >&2
+			exit 1
+		fi
+		valid="$valid $found"
+	done
+	available="$(echo "$valid" | sed -e 's/ /\n/g')"
+fi
+
+kselftest_failures_file="$(mktemp --tmpdir kselftest-failures-XXXXXX)"
+export kselftest_failures_file
+
+collections=$(echo "$available" | cut -d: -f1 | sort | uniq)
+for collection in $collections ; do
+	[ -w /dev/kmsg ] && echo "kselftest: Running tests in $collection" >> /dev/kmsg
+	tests=$(echo "$available" | grep "^$collection:" | cut -d: -f2)
+	($dryrun cd "$collection" && $dryrun run_many $tests)
+done
+
+failures="$(cat "$kselftest_failures_file")"
+rm "$kselftest_failures_file"
+if "$ERROR_ON_FAIL" && [ "$failures" ]; then
+	exit 1
+fi
diff --git a/tools/testing/selftests/rust/Makefile b/tools/testing/selftests/rust/Makefile
new file mode 100644
index 000000000000..fce1584d3bc0
--- /dev/null
+++ b/tools/testing/selftests/rust/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_PROGS += test_probe_samples.sh
+
+include ../lib.mk
diff --git a/tools/testing/selftests/rust/config b/tools/testing/selftests/rust/config
new file mode 100644
index 000000000000..5f942b5c8c17
--- /dev/null
+++ b/tools/testing/selftests/rust/config
@@ -0,0 +1,6 @@
+# CONFIG_GCC_PLUGINS is not set
+CONFIG_RUST=y
+CONFIG_SAMPLES=y
+CONFIG_SAMPLES_RUST=y
+CONFIG_SAMPLE_RUST_MINIMAL=m
+CONFIG_SAMPLE_RUST_PRINT=m
diff --git a/tools/testing/selftests/rust/test_probe_samples.sh b/tools/testing/selftests/rust/test_probe_samples.sh
new file mode 100755
index 000000000000..ad0397e4986f
--- /dev/null
+++ b/tools/testing/selftests/rust/test_probe_samples.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Copyright (c) 2023 Collabora Ltd
+#
+# This script tests whether the rust sample modules can
+# be added and removed correctly.
+#
+DIR="$(dirname "$(readlink -f "$0")")"
+
+KTAP_HELPERS="${DIR}/../kselftest/ktap_helpers.sh"
+if [ -e "$KTAP_HELPERS" ]; then
+    source "$KTAP_HELPERS"
+else
+    echo "$KTAP_HELPERS file not found [SKIP]"
+    exit 4
+fi
+
+rust_sample_modules=("rust_minimal" "rust_print")
+
+ktap_print_header
+
+for sample in "${rust_sample_modules[@]}"; do
+    if ! /sbin/modprobe -n -q "$sample"; then
+        ktap_skip_all "module $sample is not found in /lib/modules/$(uname -r)"
+        exit "$KSFT_SKIP"
+    fi
+done
+
+ktap_set_plan "${#rust_sample_modules[@]}"
+
+for sample in "${rust_sample_modules[@]}"; do
+    if /sbin/modprobe -q "$sample"; then
+        /sbin/modprobe -q -r "$sample"
+        ktap_test_pass "$sample"
+    else
+        ktap_test_fail "$sample"
+    fi
+done
+
+ktap_finished
diff --git a/tools/testing/selftests/safesetid/.gitignore b/tools/testing/selftests/safesetid/.gitignore
new file mode 100644
index 000000000000..25d3db172907
--- /dev/null
+++ b/tools/testing/selftests/safesetid/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+safesetid-test
diff --git a/tools/testing/selftests/safesetid/Makefile b/tools/testing/selftests/safesetid/Makefile
new file mode 100644
index 000000000000..e815bbf2d0f4
--- /dev/null
+++ b/tools/testing/selftests/safesetid/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for SafeSetID selftest.
+CFLAGS = -Wall -O2
+LDLIBS = -lcap
+
+TEST_PROGS := safesetid-test.sh
+TEST_GEN_FILES := safesetid-test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/safesetid/config b/tools/testing/selftests/safesetid/config
new file mode 100644
index 000000000000..9d44e5c2e096
--- /dev/null
+++ b/tools/testing/selftests/safesetid/config
@@ -0,0 +1,2 @@
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
diff --git a/tools/testing/selftests/safesetid/safesetid-test.c b/tools/testing/selftests/safesetid/safesetid-test.c
new file mode 100644
index 000000000000..eb9bf0aee951
--- /dev/null
+++ b/tools/testing/selftests/safesetid/safesetid-test.c
@@ -0,0 +1,542 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <errno.h>
+#include <pwd.h>
+#include <grp.h>
+#include <string.h>
+#include <syscall.h>
+#include <sys/capability.h>
+#include <sys/types.h>
+#include <sys/mount.h>
+#include <sys/prctl.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdarg.h>
+
+/*
+ * NOTES about this test:
+ * - requries libcap-dev to be installed on test system
+ * - requires securityfs to me mounted at /sys/kernel/security, e.g.:
+ * mount -n -t securityfs -o nodev,noexec,nosuid securityfs /sys/kernel/security
+ * - needs CONFIG_SECURITYFS and CONFIG_SAFESETID to be enabled
+ */
+
+#ifndef CLONE_NEWUSER
+# define CLONE_NEWUSER 0x10000000
+#endif
+
+#define ROOT_UGID 0
+#define RESTRICTED_PARENT_UGID 1
+#define ALLOWED_CHILD1_UGID 2
+#define ALLOWED_CHILD2_UGID 3
+#define NO_POLICY_UGID 4
+
+#define UGID_POLICY_STRING "1:2\n1:3\n2:2\n3:3\n"
+
+char* add_uid_whitelist_policy_file = "/sys/kernel/security/safesetid/uid_allowlist_policy";
+char* add_gid_whitelist_policy_file = "/sys/kernel/security/safesetid/gid_allowlist_policy";
+
+static void die(char *fmt, ...)
+{
+	va_list ap;
+	va_start(ap, fmt);
+	vfprintf(stderr, fmt, ap);
+	va_end(ap);
+	exit(EXIT_FAILURE);
+}
+
+static bool vmaybe_write_file(bool enoent_ok, char *filename, char *fmt, va_list ap)
+{
+	char buf[4096];
+	int fd;
+	ssize_t written;
+	int buf_len;
+
+	buf_len = vsnprintf(buf, sizeof(buf), fmt, ap);
+	if (buf_len < 0) {
+		printf("vsnprintf failed: %s\n",
+		    strerror(errno));
+		return false;
+	}
+	if (buf_len >= sizeof(buf)) {
+		printf("vsnprintf output truncated\n");
+		return false;
+	}
+
+	fd = open(filename, O_WRONLY);
+	if (fd < 0) {
+		if ((errno == ENOENT) && enoent_ok)
+			return true;
+		return false;
+	}
+	written = write(fd, buf, buf_len);
+	if (written != buf_len) {
+		if (written >= 0) {
+			printf("short write to %s\n", filename);
+			return false;
+		} else {
+			printf("write to %s failed: %s\n",
+				filename, strerror(errno));
+			return false;
+		}
+	}
+	if (close(fd) != 0) {
+		printf("close of %s failed: %s\n",
+			filename, strerror(errno));
+		return false;
+	}
+	return true;
+}
+
+static bool write_file(char *filename, char *fmt, ...)
+{
+	va_list ap;
+	bool ret;
+
+	va_start(ap, fmt);
+	ret = vmaybe_write_file(false, filename, fmt, ap);
+	va_end(ap);
+
+	return ret;
+}
+
+static void ensure_user_exists(uid_t uid)
+{
+	struct passwd p;
+
+	FILE *fd;
+	char name_str[10];
+
+	if (getpwuid(uid) == NULL) {
+		memset(&p,0x00,sizeof(p));
+		fd=fopen("/etc/passwd","a");
+		if (fd == NULL)
+			die("couldn't open file\n");
+		if (fseek(fd, 0, SEEK_END))
+			die("couldn't fseek\n");
+		snprintf(name_str, 10, "user %d", uid);
+		p.pw_name=name_str;
+		p.pw_uid=uid;
+		p.pw_gid=uid;
+		p.pw_gecos="Test account";
+		p.pw_dir="/dev/null";
+		p.pw_shell="/bin/false";
+		int value = putpwent(&p,fd);
+		if (value != 0)
+			die("putpwent failed\n");
+		if (fclose(fd))
+			die("fclose failed\n");
+	}
+}
+
+static void ensure_group_exists(gid_t gid)
+{
+	struct group g;
+
+	FILE *fd;
+	char name_str[10];
+
+	if (getgrgid(gid) == NULL) {
+		memset(&g,0x00,sizeof(g));
+		fd=fopen("/etc/group","a");
+		if (fd == NULL)
+			die("couldn't open group file\n");
+		if (fseek(fd, 0, SEEK_END))
+			die("couldn't fseek group file\n");
+		snprintf(name_str, 10, "group %d", gid);
+		g.gr_name=name_str;
+		g.gr_gid=gid;
+		g.gr_passwd=NULL;
+		g.gr_mem=NULL;
+		int value = putgrent(&g,fd);
+		if (value != 0)
+			die("putgrent failed\n");
+		if (fclose(fd))
+			die("fclose failed\n");
+	}
+}
+
+static void ensure_securityfs_mounted(void)
+{
+	int fd = open(add_uid_whitelist_policy_file, O_WRONLY);
+	if (fd < 0) {
+		if (errno == ENOENT) {
+			// Need to mount securityfs
+			if (mount("securityfs", "/sys/kernel/security",
+						"securityfs", 0, NULL) < 0)
+				die("mounting securityfs failed\n");
+		} else {
+			die("couldn't find securityfs for unknown reason\n");
+		}
+	} else {
+		if (close(fd) != 0) {
+			die("close of %s failed: %s\n",
+				add_uid_whitelist_policy_file, strerror(errno));
+		}
+	}
+}
+
+static void write_uid_policies()
+{
+	static char *policy_str = UGID_POLICY_STRING;
+	ssize_t written;
+	int fd;
+
+	fd = open(add_uid_whitelist_policy_file, O_WRONLY);
+	if (fd < 0)
+		die("can't open add_uid_whitelist_policy file\n");
+	written = write(fd, policy_str, strlen(policy_str));
+	if (written != strlen(policy_str)) {
+		if (written >= 0) {
+			die("short write to %s\n", add_uid_whitelist_policy_file);
+		} else {
+			die("write to %s failed: %s\n",
+				add_uid_whitelist_policy_file, strerror(errno));
+		}
+	}
+	if (close(fd) != 0) {
+		die("close of %s failed: %s\n",
+			add_uid_whitelist_policy_file, strerror(errno));
+	}
+}
+
+static void write_gid_policies()
+{
+	static char *policy_str = UGID_POLICY_STRING;
+	ssize_t written;
+	int fd;
+
+	fd = open(add_gid_whitelist_policy_file, O_WRONLY);
+	if (fd < 0)
+		die("can't open add_gid_whitelist_policy file\n");
+	written = write(fd, policy_str, strlen(policy_str));
+	if (written != strlen(policy_str)) {
+		if (written >= 0) {
+			die("short write to %s\n", add_gid_whitelist_policy_file);
+		} else {
+			die("write to %s failed: %s\n",
+				add_gid_whitelist_policy_file, strerror(errno));
+		}
+	}
+	if (close(fd) != 0) {
+		die("close of %s failed: %s\n",
+			add_gid_whitelist_policy_file, strerror(errno));
+	}
+}
+
+
+static bool test_userns(bool expect_success)
+{
+	uid_t uid;
+	char map_file_name[32];
+	size_t sz = sizeof(map_file_name);
+	pid_t cpid;
+	bool success;
+
+	uid = getuid();
+
+	int clone_flags = CLONE_NEWUSER;
+	cpid = syscall(SYS_clone, clone_flags, NULL);
+	if (cpid == -1) {
+	    printf("clone failed");
+	    return false;
+	}
+
+	if (cpid == 0) {	/* Code executed by child */
+		// Give parent 1 second to write map file
+		sleep(1);
+		exit(EXIT_SUCCESS);
+	} else {		/* Code executed by parent */
+		if(snprintf(map_file_name, sz, "/proc/%d/uid_map", cpid) < 0) {
+			printf("preparing file name string failed");
+			return false;
+		}
+		success = write_file(map_file_name, "0 %d 1", uid);
+		return success == expect_success;
+	}
+
+	printf("should not reach here");
+	return false;
+}
+
+static void test_setuid(uid_t child_uid, bool expect_success)
+{
+	pid_t cpid, w;
+	int wstatus;
+
+	cpid = fork();
+	if (cpid == -1) {
+		die("fork\n");
+	}
+
+	if (cpid == 0) {	    /* Code executed by child */
+		if (setuid(child_uid) < 0)
+			exit(EXIT_FAILURE);
+		if (getuid() == child_uid)
+			exit(EXIT_SUCCESS);
+		else
+			exit(EXIT_FAILURE);
+	} else {		 /* Code executed by parent */
+		do {
+			w = waitpid(cpid, &wstatus, WUNTRACED | WCONTINUED);
+			if (w == -1) {
+				die("waitpid\n");
+			}
+
+			if (WIFEXITED(wstatus)) {
+				if (WEXITSTATUS(wstatus) == EXIT_SUCCESS) {
+					if (expect_success) {
+						return;
+					} else {
+						die("unexpected success\n");
+					}
+				} else {
+					if (expect_success) {
+						die("unexpected failure\n");
+					} else {
+						return;
+					}
+				}
+			} else if (WIFSIGNALED(wstatus)) {
+				if (WTERMSIG(wstatus) == 9) {
+					if (expect_success)
+						die("killed unexpectedly\n");
+					else
+						return;
+				} else {
+					die("unexpected signal: %d\n", wstatus);
+				}
+			} else {
+				die("unexpected status: %d\n", wstatus);
+			}
+		} while (!WIFEXITED(wstatus) && !WIFSIGNALED(wstatus));
+	}
+
+	die("should not reach here\n");
+}
+
+static void test_setgid(gid_t child_gid, bool expect_success)
+{
+	pid_t cpid, w;
+	int wstatus;
+
+	cpid = fork();
+	if (cpid == -1) {
+		die("fork\n");
+	}
+
+	if (cpid == 0) {	    /* Code executed by child */
+		if (setgid(child_gid) < 0)
+			exit(EXIT_FAILURE);
+		if (getgid() == child_gid)
+			exit(EXIT_SUCCESS);
+		else
+			exit(EXIT_FAILURE);
+	} else {		 /* Code executed by parent */
+		do {
+			w = waitpid(cpid, &wstatus, WUNTRACED | WCONTINUED);
+			if (w == -1) {
+				die("waitpid\n");
+			}
+
+			if (WIFEXITED(wstatus)) {
+				if (WEXITSTATUS(wstatus) == EXIT_SUCCESS) {
+					if (expect_success) {
+						return;
+					} else {
+						die("unexpected success\n");
+					}
+				} else {
+					if (expect_success) {
+						die("unexpected failure\n");
+					} else {
+						return;
+					}
+				}
+			} else if (WIFSIGNALED(wstatus)) {
+				if (WTERMSIG(wstatus) == 9) {
+					if (expect_success)
+						die("killed unexpectedly\n");
+					else
+						return;
+				} else {
+					die("unexpected signal: %d\n", wstatus);
+				}
+			} else {
+				die("unexpected status: %d\n", wstatus);
+			}
+		} while (!WIFEXITED(wstatus) && !WIFSIGNALED(wstatus));
+	}
+
+	die("should not reach here\n");
+}
+
+static void test_setgroups(gid_t* child_groups, size_t len, bool expect_success)
+{
+	pid_t cpid, w;
+	int wstatus;
+	gid_t groupset[len];
+	int i, j;
+
+	cpid = fork();
+	if (cpid == -1) {
+		die("fork\n");
+	}
+
+	if (cpid == 0) {	    /* Code executed by child */
+		if (setgroups(len, child_groups) != 0)
+			exit(EXIT_FAILURE);
+		if (getgroups(len, groupset) != len)
+			exit(EXIT_FAILURE);
+		for (i = 0; i < len; i++) {
+			for (j = 0; j < len; j++) {
+				if (child_groups[i] == groupset[j])
+					break;
+				if (j == len - 1)
+					exit(EXIT_FAILURE);
+			}
+		}
+		exit(EXIT_SUCCESS);
+	} else {		 /* Code executed by parent */
+		do {
+			w = waitpid(cpid, &wstatus, WUNTRACED | WCONTINUED);
+			if (w == -1) {
+				die("waitpid\n");
+			}
+
+			if (WIFEXITED(wstatus)) {
+				if (WEXITSTATUS(wstatus) == EXIT_SUCCESS) {
+					if (expect_success) {
+						return;
+					} else {
+						die("unexpected success\n");
+					}
+				} else {
+					if (expect_success) {
+						die("unexpected failure\n");
+					} else {
+						return;
+					}
+				}
+			} else if (WIFSIGNALED(wstatus)) {
+				if (WTERMSIG(wstatus) == 9) {
+					if (expect_success)
+						die("killed unexpectedly\n");
+					else
+						return;
+				} else {
+					die("unexpected signal: %d\n", wstatus);
+				}
+			} else {
+				die("unexpected status: %d\n", wstatus);
+			}
+		} while (!WIFEXITED(wstatus) && !WIFSIGNALED(wstatus));
+	}
+
+	die("should not reach here\n");
+}
+
+
+static void ensure_users_exist(void)
+{
+	ensure_user_exists(ROOT_UGID);
+	ensure_user_exists(RESTRICTED_PARENT_UGID);
+	ensure_user_exists(ALLOWED_CHILD1_UGID);
+	ensure_user_exists(ALLOWED_CHILD2_UGID);
+	ensure_user_exists(NO_POLICY_UGID);
+}
+
+static void ensure_groups_exist(void)
+{
+	ensure_group_exists(ROOT_UGID);
+	ensure_group_exists(RESTRICTED_PARENT_UGID);
+	ensure_group_exists(ALLOWED_CHILD1_UGID);
+	ensure_group_exists(ALLOWED_CHILD2_UGID);
+	ensure_group_exists(NO_POLICY_UGID);
+}
+
+static void drop_caps(bool setid_retained)
+{
+	cap_value_t cap_values[] = {CAP_SETUID, CAP_SETGID};
+	cap_t caps;
+
+	caps = cap_get_proc();
+	if (setid_retained)
+		cap_set_flag(caps, CAP_EFFECTIVE, 2, cap_values, CAP_SET);
+	else
+		cap_clear(caps);
+	cap_set_proc(caps);
+	cap_free(caps);
+}
+
+int main(int argc, char **argv)
+{
+	ensure_groups_exist();
+	ensure_users_exist();
+	ensure_securityfs_mounted();
+	write_uid_policies();
+	write_gid_policies();
+
+	if (prctl(PR_SET_KEEPCAPS, 1L))
+		die("Error with set keepcaps\n");
+
+	// First test to make sure we can write userns mappings from a non-root
+	// user that doesn't have any restrictions (as long as it has
+	// CAP_SETUID);
+	if (setgid(NO_POLICY_UGID) < 0)
+		die("Error with set gid(%d)\n", NO_POLICY_UGID);
+	if (setuid(NO_POLICY_UGID) < 0)
+		die("Error with set uid(%d)\n", NO_POLICY_UGID);
+	// Take away all but setid caps
+	drop_caps(true);
+	// Need PR_SET_DUMPABLE flag set so we can write /proc/[pid]/uid_map
+	// from non-root parent process.
+	if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0))
+		die("Error with set dumpable\n");
+	if (!test_userns(true)) {
+		die("test_userns failed when it should work\n");
+	}
+
+	// Now switch to a user/group with restrictions
+	if (setgid(RESTRICTED_PARENT_UGID) < 0)
+		die("Error with set gid(%d)\n", RESTRICTED_PARENT_UGID);
+	if (setuid(RESTRICTED_PARENT_UGID) < 0)
+		die("Error with set uid(%d)\n", RESTRICTED_PARENT_UGID);
+
+	test_setuid(ROOT_UGID, false);
+	test_setuid(ALLOWED_CHILD1_UGID, true);
+	test_setuid(ALLOWED_CHILD2_UGID, true);
+	test_setuid(NO_POLICY_UGID, false);
+
+	test_setgid(ROOT_UGID, false);
+	test_setgid(ALLOWED_CHILD1_UGID, true);
+	test_setgid(ALLOWED_CHILD2_UGID, true);
+	test_setgid(NO_POLICY_UGID, false);
+
+	gid_t allowed_supp_groups[2] = {ALLOWED_CHILD1_UGID, ALLOWED_CHILD2_UGID};
+	gid_t disallowed_supp_groups[2] = {ROOT_UGID, NO_POLICY_UGID};
+	test_setgroups(allowed_supp_groups, 2, true);
+	test_setgroups(disallowed_supp_groups, 2, false);
+
+	if (!test_userns(false)) {
+		die("test_userns worked when it should fail\n");
+	}
+
+	// Now take away all caps
+	drop_caps(false);
+	test_setuid(2, false);
+	test_setuid(3, false);
+	test_setuid(4, false);
+	test_setgid(2, false);
+	test_setgid(3, false);
+	test_setgid(4, false);
+
+	// NOTE: this test doesn't clean up users that were created in
+	// /etc/passwd or flush policies that were added to the LSM.
+	printf("test successful!\n");
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/safesetid/safesetid-test.sh b/tools/testing/selftests/safesetid/safesetid-test.sh
new file mode 100755
index 000000000000..e4fdce675c54
--- /dev/null
+++ b/tools/testing/selftests/safesetid/safesetid-test.sh
@@ -0,0 +1,26 @@
+#!/bin/bash
+
+TCID="safesetid-test.sh"
+errcode=0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+check_root()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $TCID: must be run as root >&2
+		exit $ksft_skip
+	fi
+}
+
+main_function()
+{
+  check_root
+  ./safesetid-test
+}
+
+main_function
+echo "$TCID: done"
+exit $errcode
diff --git a/tools/testing/selftests/sched/.gitignore b/tools/testing/selftests/sched/.gitignore
new file mode 100644
index 000000000000..6996d4654d92
--- /dev/null
+++ b/tools/testing/selftests/sched/.gitignore
@@ -0,0 +1 @@
+cs_prctl_test
diff --git a/tools/testing/selftests/sched/Makefile b/tools/testing/selftests/sched/Makefile
new file mode 100644
index 000000000000..099ee9213557
--- /dev/null
+++ b/tools/testing/selftests/sched/Makefile
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+ifneq ($(shell $(CC) --version 2>&1 | head -n 1 | grep clang),)
+CLANG_FLAGS += -no-integrated-as
+endif
+
+CFLAGS += -O2 -Wall -g -I./ $(KHDR_INCLUDES) -Wl,-rpath=./ \
+	  $(CLANG_FLAGS)
+LDLIBS += -lpthread
+
+TEST_GEN_FILES := cs_prctl_test
+TEST_PROGS := cs_prctl_test
+
+include ../lib.mk
diff --git a/tools/testing/selftests/sched/config b/tools/testing/selftests/sched/config
new file mode 100644
index 000000000000..1bb8bf6d7fd4
--- /dev/null
+++ b/tools/testing/selftests/sched/config
@@ -0,0 +1 @@
+# empty
diff --git a/tools/testing/selftests/sched/cs_prctl_test.c b/tools/testing/selftests/sched/cs_prctl_test.c
new file mode 100644
index 000000000000..52d97fae4dbd
--- /dev/null
+++ b/tools/testing/selftests/sched/cs_prctl_test.c
@@ -0,0 +1,359 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Use the core scheduling prctl() to test core scheduling cookies control.
+ *
+ * Copyright (c) 2021 Oracle and/or its affiliates.
+ * Author: Chris Hyser <chris.hyser@oracle.com>
+ *
+ *
+ * This library is free software; you can redistribute it and/or modify it
+ * under the terms of version 2.1 of the GNU Lesser General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library; if not, see <http://www.gnu.org/licenses>.
+ */
+
+#define _GNU_SOURCE
+#include <sys/eventfd.h>
+#include <sys/wait.h>
+#include <sys/types.h>
+#include <sched.h>
+#include <sys/prctl.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#if __GLIBC_PREREQ(2, 30) == 0
+#include <sys/syscall.h>
+static pid_t gettid(void)
+{
+	return syscall(SYS_gettid);
+}
+#endif
+
+#ifndef PR_SCHED_CORE
+#define PR_SCHED_CORE			62
+#define PR_SCHED_CORE_GET		0
+#define PR_SCHED_CORE_CREATE		1 /* create unique core_sched cookie */
+#define PR_SCHED_CORE_SHARE_TO		2 /* push core_sched cookie to pid */
+#define PR_SCHED_CORE_SHARE_FROM	3 /* pull core_sched cookie to pid */
+#define PR_SCHED_CORE_MAX		4
+#endif
+
+#define MAX_PROCESSES 128
+#define MAX_THREADS   128
+
+static const char USAGE[] = "cs_prctl_test [options]\n"
+"    options:\n"
+"	-P  : number of processes to create.\n"
+"	-T  : number of threads per process to create.\n"
+"	-d  : delay time to keep tasks alive.\n"
+"	-k  : keep tasks alive until keypress.\n";
+
+enum pid_type {PIDTYPE_PID = 0, PIDTYPE_TGID, PIDTYPE_PGID};
+
+const int THREAD_CLONE_FLAGS = CLONE_THREAD | CLONE_SIGHAND | CLONE_FS | CLONE_VM | CLONE_FILES;
+
+struct child_args {
+	int num_threads;
+	int pfd[2];
+	int cpid;
+	int thr_tids[MAX_THREADS];
+};
+
+static struct child_args procs[MAX_PROCESSES];
+static int num_processes = 2;
+static int need_cleanup;
+
+static int _prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4,
+		  unsigned long arg5)
+{
+	int res;
+
+	res = prctl(option, arg2, arg3, arg4, arg5);
+	printf("%d = prctl(%d, %ld, %ld, %ld, %lx)\n", res, option, (long)arg2, (long)arg3,
+	       (long)arg4, arg5);
+	return res;
+}
+
+#define STACK_SIZE (1024 * 1024)
+
+#define handle_error(msg) __handle_error(__FILE__, __LINE__, msg)
+static void __handle_error(char *fn, int ln, char *msg)
+{
+	int pidx;
+	printf("(%s:%d) - ", fn, ln);
+	perror(msg);
+	if (need_cleanup) {
+		for (pidx = 0; pidx < num_processes; ++pidx)
+			kill(procs[pidx].cpid, 15);
+		need_cleanup = 0;
+	}
+	exit(EXIT_FAILURE);
+}
+
+static void handle_usage(int rc, char *msg)
+{
+	puts(USAGE);
+	puts(msg);
+	putchar('\n');
+	exit(rc);
+}
+
+static unsigned long get_cs_cookie(int pid)
+{
+	unsigned long long cookie;
+	int ret;
+
+	ret = prctl(PR_SCHED_CORE, PR_SCHED_CORE_GET, pid, PIDTYPE_PID,
+		    (unsigned long)&cookie);
+	if (ret) {
+		printf("Not a core sched system\n");
+		return -1UL;
+	}
+
+	return cookie;
+}
+
+static int child_func_thread(void __attribute__((unused))*arg)
+{
+	while (1)
+		usleep(20000);
+	return 0;
+}
+
+static void create_threads(int num_threads, int thr_tids[])
+{
+	void *child_stack;
+	pid_t tid;
+	int i;
+
+	for (i = 0; i < num_threads; ++i) {
+		child_stack = malloc(STACK_SIZE);
+		if (!child_stack)
+			handle_error("child stack allocate");
+
+		tid = clone(child_func_thread, child_stack + STACK_SIZE, THREAD_CLONE_FLAGS, NULL);
+		if (tid == -1)
+			handle_error("clone thread");
+		thr_tids[i] = tid;
+	}
+}
+
+static int child_func_process(void *arg)
+{
+	struct child_args *ca = (struct child_args *)arg;
+	int ret;
+
+	close(ca->pfd[0]);
+
+	create_threads(ca->num_threads, ca->thr_tids);
+
+	ret = write(ca->pfd[1], &ca->thr_tids, sizeof(int) * ca->num_threads);
+	if (ret == -1)
+		printf("write failed on pfd[%d] - error (%s)\n",
+			ca->pfd[1], strerror(errno));
+
+	close(ca->pfd[1]);
+
+	while (1)
+		usleep(20000);
+	return 0;
+}
+
+static unsigned char child_func_process_stack[STACK_SIZE];
+
+void create_processes(int num_processes, int num_threads, struct child_args proc[])
+{
+	pid_t cpid;
+	int i, ret;
+
+	for (i = 0; i < num_processes; ++i) {
+		proc[i].num_threads = num_threads;
+
+		if (pipe(proc[i].pfd) == -1)
+			handle_error("pipe() failed");
+
+		cpid = clone(child_func_process, child_func_process_stack + STACK_SIZE,
+			     SIGCHLD, &proc[i]);
+		proc[i].cpid = cpid;
+		close(proc[i].pfd[1]);
+	}
+
+	for (i = 0; i < num_processes; ++i) {
+		ret = read(proc[i].pfd[0], &proc[i].thr_tids, sizeof(int) * proc[i].num_threads);
+		if (ret == -1)
+			printf("read failed on proc[%d].pfd[0] error (%s)\n",
+				i, strerror(errno));
+		close(proc[i].pfd[0]);
+	}
+}
+
+void disp_processes(int num_processes, struct child_args proc[])
+{
+	int i, j;
+
+	printf("tid=%d, / tgid=%d / pgid=%d: %lx\n", gettid(), getpid(), getpgid(0),
+	       get_cs_cookie(getpid()));
+
+	for (i = 0; i < num_processes; ++i) {
+		printf("    tid=%d, / tgid=%d / pgid=%d: %lx\n", proc[i].cpid, proc[i].cpid,
+		       getpgid(proc[i].cpid), get_cs_cookie(proc[i].cpid));
+		for (j = 0; j < proc[i].num_threads; ++j) {
+			printf("        tid=%d, / tgid=%d / pgid=%d: %lx\n", proc[i].thr_tids[j],
+			       proc[i].cpid, getpgid(0), get_cs_cookie(proc[i].thr_tids[j]));
+		}
+	}
+	puts("\n");
+}
+
+static int errors;
+
+#define validate(v) _validate(__LINE__, v, #v)
+void _validate(int line, int val, char *msg)
+{
+	if (!val) {
+		++errors;
+		printf("(%d) FAILED: %s\n", line, msg);
+	} else {
+		printf("(%d) PASSED: %s\n", line, msg);
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	int keypress = 0;
+	int num_threads = 3;
+	int delay = 0;
+	int res = 0;
+	int pidx;
+	int pid;
+	int opt;
+
+	while ((opt = getopt(argc, argv, ":hkT:P:d:")) != -1) {
+		switch (opt) {
+		case 'P':
+			num_processes = (int)strtol(optarg, NULL, 10);
+			break;
+		case 'T':
+			num_threads = (int)strtoul(optarg, NULL, 10);
+			break;
+		case 'd':
+			delay = (int)strtol(optarg, NULL, 10);
+			break;
+		case 'k':
+			keypress = 1;
+			break;
+		case 'h':
+			printf(USAGE);
+			exit(EXIT_SUCCESS);
+		default:
+			handle_usage(20, "unknown option");
+		}
+	}
+
+	if (num_processes < 1 || num_processes > MAX_PROCESSES)
+		handle_usage(1, "Bad processes value");
+
+	if (num_threads < 1 || num_threads > MAX_THREADS)
+		handle_usage(2, "Bad thread value");
+
+	if (keypress)
+		delay = -1;
+
+	srand(time(NULL));
+
+	/* put into separate process group */
+	if (setpgid(0, 0) != 0)
+		handle_error("process group");
+
+	printf("\n## Create a thread/process/process group hierarchy\n");
+	create_processes(num_processes, num_threads, procs);
+	need_cleanup = 1;
+	disp_processes(num_processes, procs);
+	validate(get_cs_cookie(0) == 0);
+
+	printf("\n## Set a cookie on entire process group\n");
+	if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, 0, PIDTYPE_PGID, 0) < 0)
+		handle_error("core_sched create failed -- PGID");
+	disp_processes(num_processes, procs);
+
+	validate(get_cs_cookie(0) != 0);
+
+	/* get a random process pid */
+	pidx = rand() % num_processes;
+	pid = procs[pidx].cpid;
+
+	validate(get_cs_cookie(0) == get_cs_cookie(pid));
+	validate(get_cs_cookie(0) == get_cs_cookie(procs[pidx].thr_tids[0]));
+
+	printf("\n## Set a new cookie on entire process/TGID [%d]\n", pid);
+	if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_CREATE, pid, PIDTYPE_TGID, 0) < 0)
+		handle_error("core_sched create failed -- TGID");
+	disp_processes(num_processes, procs);
+
+	validate(get_cs_cookie(0) != get_cs_cookie(pid));
+	validate(get_cs_cookie(pid) != 0);
+	validate(get_cs_cookie(pid) == get_cs_cookie(procs[pidx].thr_tids[0]));
+
+	printf("\n## Copy the cookie of current/PGID[%d], to pid [%d] as PIDTYPE_PID\n",
+	       getpid(), pid);
+	if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_TO, pid, PIDTYPE_PID, 0) < 0)
+		handle_error("core_sched share to itself failed -- PID");
+	disp_processes(num_processes, procs);
+
+	validate(get_cs_cookie(0) == get_cs_cookie(pid));
+	validate(get_cs_cookie(pid) != 0);
+	validate(get_cs_cookie(pid) != get_cs_cookie(procs[pidx].thr_tids[0]));
+
+	printf("\n## Copy cookie from a thread [%d] to current/PGID [%d] as PIDTYPE_PID\n",
+	       procs[pidx].thr_tids[0], getpid());
+	if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_FROM, procs[pidx].thr_tids[0],
+		   PIDTYPE_PID, 0) < 0)
+		handle_error("core_sched share from thread failed -- PID");
+	disp_processes(num_processes, procs);
+
+	validate(get_cs_cookie(0) == get_cs_cookie(procs[pidx].thr_tids[0]));
+	validate(get_cs_cookie(pid) != get_cs_cookie(procs[pidx].thr_tids[0]));
+
+	printf("\n## Copy cookie from current [%d] to current as pidtype PGID\n", getpid());
+	if (_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_TO, 0, PIDTYPE_PGID, 0) < 0)
+		handle_error("core_sched share to self failed -- PGID");
+	disp_processes(num_processes, procs);
+
+	validate(get_cs_cookie(0) == get_cs_cookie(pid));
+	validate(get_cs_cookie(pid) != 0);
+	validate(get_cs_cookie(pid) == get_cs_cookie(procs[pidx].thr_tids[0]));
+
+	validate(_prctl(PR_SCHED_CORE, PR_SCHED_CORE_MAX, 0, PIDTYPE_PGID, 0) < 0
+		&& errno == EINVAL);
+
+	validate(_prctl(PR_SCHED_CORE, PR_SCHED_CORE_SHARE_TO, 0, PIDTYPE_PGID, 1) < 0
+		&& errno == EINVAL);
+
+	if (errors) {
+		printf("TESTS FAILED. errors: %d\n", errors);
+		res = 10;
+	} else {
+		printf("SUCCESS !!!\n");
+	}
+
+	if (keypress)
+		getchar();
+	else
+		sleep(delay);
+
+	for (pidx = 0; pidx < num_processes; ++pidx)
+		kill(procs[pidx].cpid, 15);
+
+	return res;
+}
diff --git a/tools/testing/selftests/sched_ext/.gitignore b/tools/testing/selftests/sched_ext/.gitignore
new file mode 100644
index 000000000000..ae5491a114c0
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/.gitignore
@@ -0,0 +1,6 @@
+*
+!*.c
+!*.h
+!Makefile
+!.gitignore
+!config
diff --git a/tools/testing/selftests/sched_ext/Makefile b/tools/testing/selftests/sched_ext/Makefile
new file mode 100644
index 000000000000..5fe45f9c5f8f
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/Makefile
@@ -0,0 +1,214 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2022 Meta Platforms, Inc. and affiliates.
+include ../../../build/Build.include
+include ../../../scripts/Makefile.arch
+include ../../../scripts/Makefile.include
+
+TEST_GEN_PROGS := runner
+
+# override lib.mk's default rules
+OVERRIDE_TARGETS := 1
+include ../lib.mk
+
+CURDIR := $(abspath .)
+REPOROOT := $(abspath ../../../..)
+TOOLSDIR := $(REPOROOT)/tools
+LIBDIR := $(TOOLSDIR)/lib
+BPFDIR := $(LIBDIR)/bpf
+TOOLSINCDIR := $(TOOLSDIR)/include
+BPFTOOLDIR := $(TOOLSDIR)/bpf/bpftool
+APIDIR := $(TOOLSINCDIR)/uapi
+GENDIR := $(REPOROOT)/include/generated
+GENHDR := $(GENDIR)/autoconf.h
+SCXTOOLSDIR := $(TOOLSDIR)/sched_ext
+SCXTOOLSINCDIR := $(TOOLSDIR)/sched_ext/include
+
+OUTPUT_DIR := $(OUTPUT)/build
+OBJ_DIR := $(OUTPUT_DIR)/obj
+INCLUDE_DIR := $(OUTPUT_DIR)/include
+BPFOBJ_DIR := $(OBJ_DIR)/libbpf
+SCXOBJ_DIR := $(OBJ_DIR)/sched_ext
+BPFOBJ := $(BPFOBJ_DIR)/libbpf.a
+LIBBPF_OUTPUT := $(OBJ_DIR)/libbpf/libbpf.a
+
+DEFAULT_BPFTOOL := $(OUTPUT_DIR)/host/sbin/bpftool
+HOST_OBJ_DIR := $(OBJ_DIR)/host/bpftool
+HOST_LIBBPF_OUTPUT := $(OBJ_DIR)/host/libbpf/
+HOST_LIBBPF_DESTDIR := $(OUTPUT_DIR)/host/
+HOST_DESTDIR := $(OUTPUT_DIR)/host/
+
+VMLINUX_BTF_PATHS ?= $(if $(O),$(O)/vmlinux)					\
+		     $(if $(KBUILD_OUTPUT),$(KBUILD_OUTPUT)/vmlinux)		\
+		     ../../../../vmlinux					\
+		     /sys/kernel/btf/vmlinux					\
+		     /boot/vmlinux-$(shell uname -r)
+VMLINUX_BTF ?= $(abspath $(firstword $(wildcard $(VMLINUX_BTF_PATHS))))
+ifeq ($(VMLINUX_BTF),)
+$(error Cannot find a vmlinux for VMLINUX_BTF at any of "$(VMLINUX_BTF_PATHS)")
+endif
+
+BPFTOOL ?= $(DEFAULT_BPFTOOL)
+
+ifneq ($(wildcard $(GENHDR)),)
+  GENFLAGS := -DHAVE_GENHDR
+endif
+
+CFLAGS += -g -O2 -rdynamic -pthread -Wall -Werror $(GENFLAGS)			\
+	  -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR)				\
+	  -I$(TOOLSINCDIR) -I$(APIDIR) -I$(CURDIR)/include -I$(SCXTOOLSINCDIR)
+
+# Silence some warnings when compiled with clang
+ifneq ($(LLVM),)
+CFLAGS += -Wno-unused-command-line-argument
+endif
+
+LDFLAGS = -lelf -lz -lpthread -lzstd
+
+IS_LITTLE_ENDIAN = $(shell $(CC) -dM -E - </dev/null |				\
+			grep 'define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__')
+
+# Get Clang's default includes on this system, as opposed to those seen by
+# '-target bpf'. This fixes "missing" files on some architectures/distros,
+# such as asm/byteorder.h, asm/socket.h, asm/sockios.h, sys/cdefs.h etc.
+#
+# Use '-idirafter': Don't interfere with include mechanics except where the
+# build would have failed anyways.
+define get_sys_includes
+$(shell $(1) $(2) -v -E - </dev/null 2>&1 \
+	| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }') \
+$(shell $(1) $(2) -dM -E - </dev/null | grep '__riscv_xlen ' | awk '{printf("-D__riscv_xlen=%d -D__BITS_PER_LONG=%d", $$3, $$3)}')
+endef
+
+ifneq ($(CROSS_COMPILE),)
+CLANG_TARGET_ARCH = --target=$(notdir $(CROSS_COMPILE:%-=%))
+endif
+
+CLANG_SYS_INCLUDES = $(call get_sys_includes,$(CLANG),$(CLANG_TARGET_ARCH))
+
+BPF_CFLAGS = -g -D__TARGET_ARCH_$(SRCARCH)					\
+	     $(if $(IS_LITTLE_ENDIAN),-mlittle-endian,-mbig-endian)		\
+	     -I$(CURDIR)/include -I$(CURDIR)/include/bpf-compat			\
+	     -I$(INCLUDE_DIR) -I$(APIDIR) -I$(SCXTOOLSINCDIR)			\
+	     -I$(REPOROOT)/include						\
+	     $(CLANG_SYS_INCLUDES) 						\
+	     -Wall -Wno-compare-distinct-pointer-types				\
+	     -Wno-incompatible-function-pointer-types				\
+	     -O2 -mcpu=v3
+
+# sort removes libbpf duplicates when not cross-building
+MAKE_DIRS := $(sort $(OBJ_DIR)/libbpf $(OBJ_DIR)/libbpf				\
+	       $(OBJ_DIR)/bpftool $(OBJ_DIR)/resolve_btfids			\
+	       $(HOST_OBJ_DIR) $(INCLUDE_DIR) $(SCXOBJ_DIR))
+
+$(MAKE_DIRS):
+	$(call msg,MKDIR,,$@)
+	$(Q)mkdir -p $@
+
+$(BPFOBJ): $(wildcard $(BPFDIR)/*.[ch] $(BPFDIR)/Makefile)			\
+	   $(APIDIR)/linux/bpf.h						\
+	   | $(OBJ_DIR)/libbpf
+	$(Q)$(MAKE) $(submake_extras) -C $(BPFDIR) OUTPUT=$(OBJ_DIR)/libbpf/	\
+		    ARCH=$(ARCH) CC="$(CC)" CROSS_COMPILE=$(CROSS_COMPILE)	\
+		    EXTRA_CFLAGS='-g -O0 -fPIC'					\
+		    DESTDIR=$(OUTPUT_DIR) prefix= all install_headers
+
+$(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)	\
+		    $(LIBBPF_OUTPUT) | $(HOST_OBJ_DIR)
+	$(Q)$(MAKE) $(submake_extras)  -C $(BPFTOOLDIR)				\
+		    ARCH= CROSS_COMPILE= CC=$(HOSTCC) LD=$(HOSTLD)		\
+		    EXTRA_CFLAGS='-g -O0'					\
+		    OUTPUT=$(HOST_OBJ_DIR)/					\
+		    LIBBPF_OUTPUT=$(HOST_LIBBPF_OUTPUT)				\
+		    LIBBPF_DESTDIR=$(HOST_LIBBPF_DESTDIR)			\
+		    prefix= DESTDIR=$(HOST_DESTDIR) install-bin
+
+$(INCLUDE_DIR)/vmlinux.h: $(VMLINUX_BTF) $(BPFTOOL) | $(INCLUDE_DIR)
+ifeq ($(VMLINUX_H),)
+	$(call msg,GEN,,$@)
+	$(Q)$(BPFTOOL) btf dump file $(VMLINUX_BTF) format c > $@
+else
+	$(call msg,CP,,$@)
+	$(Q)cp "$(VMLINUX_H)" $@
+endif
+
+$(SCXOBJ_DIR)/%.bpf.o: %.bpf.c $(INCLUDE_DIR)/vmlinux.h	| $(BPFOBJ) $(SCXOBJ_DIR)
+	$(call msg,CLNG-BPF,,$(notdir $@))
+	$(Q)$(CLANG) $(BPF_CFLAGS) -target bpf -c $< -o $@
+
+$(INCLUDE_DIR)/%.bpf.skel.h: $(SCXOBJ_DIR)/%.bpf.o $(INCLUDE_DIR)/vmlinux.h $(BPFTOOL) | $(INCLUDE_DIR)
+	$(eval sched=$(notdir $@))
+	$(call msg,GEN-SKEL,,$(sched))
+	$(Q)$(BPFTOOL) gen object $(<:.o=.linked1.o) $<
+	$(Q)$(BPFTOOL) gen object $(<:.o=.linked2.o) $(<:.o=.linked1.o)
+	$(Q)$(BPFTOOL) gen object $(<:.o=.linked3.o) $(<:.o=.linked2.o)
+	$(Q)diff $(<:.o=.linked2.o) $(<:.o=.linked3.o)
+	$(Q)$(BPFTOOL) gen skeleton $(<:.o=.linked3.o) name $(subst .bpf.skel.h,,$(sched)) > $@
+	$(Q)$(BPFTOOL) gen subskeleton $(<:.o=.linked3.o) name $(subst .bpf.skel.h,,$(sched)) > $(@:.skel.h=.subskel.h)
+
+################
+# C schedulers #
+################
+
+override define CLEAN
+	rm -rf $(OUTPUT_DIR)
+	rm -f $(TEST_GEN_PROGS)
+endef
+
+# Every testcase takes all of the BPF progs are dependencies by default. This
+# allows testcases to load any BPF scheduler, which is useful for testcases
+# that don't need their own prog to run their test.
+all_test_bpfprogs := $(foreach prog,$(wildcard *.bpf.c),$(INCLUDE_DIR)/$(patsubst %.c,%.skel.h,$(prog)))
+
+auto-test-targets :=			\
+	create_dsq			\
+	enq_last_no_enq_fails		\
+	ddsp_bogus_dsq_fail		\
+	ddsp_vtimelocal_fail		\
+	dsp_local_on			\
+	enq_select_cpu			\
+	exit				\
+	hotplug				\
+	init_enable_count		\
+	maximal				\
+	maybe_null			\
+	minimal				\
+	numa				\
+	allowed_cpus			\
+	peek_dsq			\
+	prog_run			\
+	reload_loop			\
+	select_cpu_dfl			\
+	select_cpu_dfl_nodispatch	\
+	select_cpu_dispatch		\
+	select_cpu_dispatch_bad_dsq	\
+	select_cpu_dispatch_dbl_dsp	\
+	select_cpu_vtime		\
+	test_example			\
+
+testcase-targets := $(addsuffix .o,$(addprefix $(SCXOBJ_DIR)/,$(auto-test-targets)))
+
+$(SCXOBJ_DIR)/runner.o: runner.c | $(SCXOBJ_DIR) $(BPFOBJ)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Create all of the test targets object files, whose testcase objects will be
+# registered into the runner in ELF constructors.
+#
+# Note that we must do double expansion here in order to support conditionally
+# compiling BPF object files only if one is present, as the wildcard Make
+# function doesn't support using implicit rules otherwise.
+$(testcase-targets): $(SCXOBJ_DIR)/%.o: %.c $(SCXOBJ_DIR)/runner.o $(all_test_bpfprogs) | $(SCXOBJ_DIR)
+	$(eval test=$(patsubst %.o,%.c,$(notdir $@)))
+	$(CC) $(CFLAGS) -c $< -o $@
+
+$(SCXOBJ_DIR)/util.o: util.c | $(SCXOBJ_DIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+$(OUTPUT)/runner: $(SCXOBJ_DIR)/runner.o $(SCXOBJ_DIR)/util.o $(BPFOBJ) $(testcase-targets)
+	@echo "$(testcase-targets)"
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+.DEFAULT_GOAL := all
+
+.DELETE_ON_ERROR:
+
+.SECONDARY:
diff --git a/tools/testing/selftests/sched_ext/allowed_cpus.bpf.c b/tools/testing/selftests/sched_ext/allowed_cpus.bpf.c
new file mode 100644
index 000000000000..35923e74a2ec
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/allowed_cpus.bpf.c
@@ -0,0 +1,144 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A scheduler that validates the behavior of scx_bpf_select_cpu_and() by
+ * selecting idle CPUs strictly within a subset of allowed CPUs.
+ *
+ * Copyright (c) 2025 Andrea Righi <arighi@nvidia.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+private(PREF_CPUS) struct bpf_cpumask __kptr * allowed_cpumask;
+
+static void
+validate_idle_cpu(const struct task_struct *p, const struct cpumask *allowed, s32 cpu)
+{
+	if (scx_bpf_test_and_clear_cpu_idle(cpu))
+		scx_bpf_error("CPU %d should be marked as busy", cpu);
+
+	if (bpf_cpumask_subset(allowed, p->cpus_ptr) &&
+	    !bpf_cpumask_test_cpu(cpu, allowed))
+		scx_bpf_error("CPU %d not in the allowed domain for %d (%s)",
+			      cpu, p->pid, p->comm);
+}
+
+s32 BPF_STRUCT_OPS(allowed_cpus_select_cpu,
+		   struct task_struct *p, s32 prev_cpu, u64 wake_flags)
+{
+	const struct cpumask *allowed;
+	s32 cpu;
+
+	allowed = cast_mask(allowed_cpumask);
+	if (!allowed) {
+		scx_bpf_error("allowed domain not initialized");
+		return -EINVAL;
+	}
+
+	/*
+	 * Select an idle CPU strictly within the allowed domain.
+	 */
+	cpu = scx_bpf_select_cpu_and(p, prev_cpu, wake_flags, allowed, 0);
+	if (cpu >= 0) {
+		validate_idle_cpu(p, allowed, cpu);
+		scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL, 0);
+
+		return cpu;
+	}
+
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(allowed_cpus_enqueue, struct task_struct *p, u64 enq_flags)
+{
+	const struct cpumask *allowed;
+	s32 prev_cpu = scx_bpf_task_cpu(p), cpu;
+
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
+
+	allowed = cast_mask(allowed_cpumask);
+	if (!allowed) {
+		scx_bpf_error("allowed domain not initialized");
+		return;
+	}
+
+	/*
+	 * Use scx_bpf_select_cpu_and() to proactively kick an idle CPU
+	 * within @allowed_cpumask, usable by @p.
+	 */
+	cpu = scx_bpf_select_cpu_and(p, prev_cpu, 0, allowed, 0);
+	if (cpu >= 0) {
+		validate_idle_cpu(p, allowed, cpu);
+		scx_bpf_kick_cpu(cpu, SCX_KICK_IDLE);
+	}
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(allowed_cpus_init)
+{
+	struct bpf_cpumask *mask;
+
+	mask = bpf_cpumask_create();
+	if (!mask)
+		return -ENOMEM;
+
+	mask = bpf_kptr_xchg(&allowed_cpumask, mask);
+	if (mask)
+		bpf_cpumask_release(mask);
+
+	bpf_rcu_read_lock();
+
+	/*
+	 * Assign the first online CPU to the allowed domain.
+	 */
+	mask = allowed_cpumask;
+	if (mask) {
+		const struct cpumask *online = scx_bpf_get_online_cpumask();
+
+		bpf_cpumask_set_cpu(bpf_cpumask_first(online), mask);
+		scx_bpf_put_cpumask(online);
+	}
+
+	bpf_rcu_read_unlock();
+
+	return 0;
+}
+
+void BPF_STRUCT_OPS(allowed_cpus_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+struct task_cpu_arg {
+	pid_t pid;
+};
+
+SEC("syscall")
+int select_cpu_from_user(struct task_cpu_arg *input)
+{
+	struct task_struct *p;
+	int cpu;
+
+	p = bpf_task_from_pid(input->pid);
+	if (!p)
+		return -EINVAL;
+
+	bpf_rcu_read_lock();
+	cpu = scx_bpf_select_cpu_and(p, bpf_get_smp_processor_id(), 0, p->cpus_ptr, 0);
+	bpf_rcu_read_unlock();
+
+	bpf_task_release(p);
+
+	return cpu;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops allowed_cpus_ops = {
+	.select_cpu		= (void *)allowed_cpus_select_cpu,
+	.enqueue		= (void *)allowed_cpus_enqueue,
+	.init			= (void *)allowed_cpus_init,
+	.exit			= (void *)allowed_cpus_exit,
+	.name			= "allowed_cpus",
+};
diff --git a/tools/testing/selftests/sched_ext/allowed_cpus.c b/tools/testing/selftests/sched_ext/allowed_cpus.c
new file mode 100644
index 000000000000..093f285ab4ba
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/allowed_cpus.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Andrea Righi <arighi@nvidia.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "allowed_cpus.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct allowed_cpus *skel;
+
+	skel = allowed_cpus__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(allowed_cpus__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static int test_select_cpu_from_user(const struct allowed_cpus *skel)
+{
+	int fd, ret;
+	__u64 args[1];
+
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+
+	args[0] = getpid();
+	fd = bpf_program__fd(skel->progs.select_cpu_from_user);
+	if (fd < 0)
+		return fd;
+
+	ret = bpf_prog_test_run_opts(fd, &attr);
+	if (ret < 0)
+		return ret;
+
+	fprintf(stderr, "%s: CPU %d\n", __func__, attr.retval);
+
+	return 0;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct allowed_cpus *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.allowed_cpus_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	/* Pick an idle CPU from user-space */
+	SCX_FAIL_IF(test_select_cpu_from_user(skel), "Failed to pick idle CPU");
+
+	/* Just sleeping is fine, plenty of scheduling events happening */
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_NONE));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct allowed_cpus *skel = ctx;
+
+	allowed_cpus__destroy(skel);
+}
+
+struct scx_test allowed_cpus = {
+	.name = "allowed_cpus",
+	.description = "Verify scx_bpf_select_cpu_and()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&allowed_cpus)
diff --git a/tools/testing/selftests/sched_ext/config b/tools/testing/selftests/sched_ext/config
new file mode 100644
index 000000000000..aa901b05c8ad
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/config
@@ -0,0 +1,8 @@
+CONFIG_SCHED_CLASS_EXT=y
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_EXT_GROUP_SCHED=y
+CONFIG_BPF=y
+CONFIG_BPF_SYSCALL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_INFO_BTF=y
diff --git a/tools/testing/selftests/sched_ext/create_dsq.bpf.c b/tools/testing/selftests/sched_ext/create_dsq.bpf.c
new file mode 100644
index 000000000000..2cfc4ffd60e2
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/create_dsq.bpf.c
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Create and destroy DSQs in a loop.
+ *
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+void BPF_STRUCT_OPS(create_dsq_exit_task, struct task_struct *p,
+		    struct scx_exit_task_args *args)
+{
+	scx_bpf_destroy_dsq(p->pid);
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(create_dsq_init_task, struct task_struct *p,
+			     struct scx_init_task_args *args)
+{
+	s32 err;
+
+	err = scx_bpf_create_dsq(p->pid, -1);
+	if (err)
+		scx_bpf_error("Failed to create DSQ for %s[%d]",
+			      p->comm, p->pid);
+
+	return err;
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(create_dsq_init)
+{
+	u32 i;
+	s32 err;
+
+	bpf_for(i, 0, 1024) {
+		err = scx_bpf_create_dsq(i, -1);
+		if (err) {
+			scx_bpf_error("Failed to create DSQ %d", i);
+			return 0;
+		}
+	}
+
+	bpf_for(i, 0, 1024) {
+		scx_bpf_destroy_dsq(i);
+	}
+
+	return 0;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops create_dsq_ops = {
+	.init_task		= (void *) create_dsq_init_task,
+	.exit_task		= (void *) create_dsq_exit_task,
+	.init			= (void *) create_dsq_init,
+	.name			= "create_dsq",
+};
diff --git a/tools/testing/selftests/sched_ext/create_dsq.c b/tools/testing/selftests/sched_ext/create_dsq.c
new file mode 100644
index 000000000000..d67431f57ac6
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/create_dsq.c
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "create_dsq.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct create_dsq *skel;
+
+	skel = create_dsq__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(create_dsq__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct create_dsq *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.create_dsq_ops);
+	if (!link) {
+		SCX_ERR("Failed to attach scheduler");
+		return SCX_TEST_FAIL;
+	}
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct create_dsq *skel = ctx;
+
+	create_dsq__destroy(skel);
+}
+
+struct scx_test create_dsq = {
+	.name = "create_dsq",
+	.description = "Create and destroy a dsq in a loop",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&create_dsq)
diff --git a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
new file mode 100644
index 000000000000..6f4c3f5a1c5d
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+s32 BPF_STRUCT_OPS(ddsp_bogus_dsq_fail_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	s32 cpu = scx_bpf_pick_idle_cpu(p->cpus_ptr, 0);
+
+	if (cpu >= 0) {
+		/*
+		 * If we dispatch to a bogus DSQ that will fall back to the
+		 * builtin global DSQ, we fail gracefully.
+		 */
+		scx_bpf_dsq_insert_vtime(p, 0xcafef00d, SCX_SLICE_DFL,
+				       p->scx.dsq_vtime, 0);
+		return cpu;
+	}
+
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(ddsp_bogus_dsq_fail_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops ddsp_bogus_dsq_fail_ops = {
+	.select_cpu		= (void *) ddsp_bogus_dsq_fail_select_cpu,
+	.exit			= (void *) ddsp_bogus_dsq_fail_exit,
+	.name			= "ddsp_bogus_dsq_fail",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.c b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.c
new file mode 100644
index 000000000000..b6d13496b24e
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.c
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "ddsp_bogus_dsq_fail.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct ddsp_bogus_dsq_fail *skel;
+
+	skel = ddsp_bogus_dsq_fail__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(ddsp_bogus_dsq_fail__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct ddsp_bogus_dsq_fail *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ddsp_bogus_dsq_fail_ops);
+	SCX_FAIL_IF(!link, "Failed to attach struct_ops");
+
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct ddsp_bogus_dsq_fail *skel = ctx;
+
+	ddsp_bogus_dsq_fail__destroy(skel);
+}
+
+struct scx_test ddsp_bogus_dsq_fail = {
+	.name = "ddsp_bogus_dsq_fail",
+	.description = "Verify we gracefully fail, and fall back to using a "
+		       "built-in DSQ, if we do a direct dispatch to an invalid"
+		       " DSQ in ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&ddsp_bogus_dsq_fail)
diff --git a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
new file mode 100644
index 000000000000..e4a55027778f
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+s32 BPF_STRUCT_OPS(ddsp_vtimelocal_fail_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	s32 cpu = scx_bpf_pick_idle_cpu(p->cpus_ptr, 0);
+
+	if (cpu >= 0) {
+		/* Shouldn't be allowed to vtime dispatch to a builtin DSQ. */
+		scx_bpf_dsq_insert_vtime(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL,
+					 p->scx.dsq_vtime, 0);
+		return cpu;
+	}
+
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(ddsp_vtimelocal_fail_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops ddsp_vtimelocal_fail_ops = {
+	.select_cpu		= (void *) ddsp_vtimelocal_fail_select_cpu,
+	.exit			= (void *) ddsp_vtimelocal_fail_exit,
+	.name			= "ddsp_vtimelocal_fail",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.c b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.c
new file mode 100644
index 000000000000..af9ce4ee8baa
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <unistd.h>
+#include "ddsp_vtimelocal_fail.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct ddsp_vtimelocal_fail *skel;
+
+	skel = ddsp_vtimelocal_fail__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(ddsp_vtimelocal_fail__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct ddsp_vtimelocal_fail *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.ddsp_vtimelocal_fail_ops);
+	SCX_FAIL_IF(!link, "Failed to attach struct_ops");
+
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct ddsp_vtimelocal_fail *skel = ctx;
+
+	ddsp_vtimelocal_fail__destroy(skel);
+}
+
+struct scx_test ddsp_vtimelocal_fail = {
+	.name = "ddsp_vtimelocal_fail",
+	.description = "Verify we gracefully fail, and fall back to using a "
+		       "built-in DSQ, if we do a direct vtime dispatch to a "
+		       "built-in DSQ from DSQ in ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&ddsp_vtimelocal_fail)
diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
new file mode 100644
index 000000000000..c02b2aa6fc64
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+const volatile s32 nr_cpus;
+
+UEI_DEFINE(uei);
+
+struct {
+	__uint(type, BPF_MAP_TYPE_QUEUE);
+	__uint(max_entries, 8192);
+	__type(value, s32);
+} queue SEC(".maps");
+
+s32 BPF_STRUCT_OPS(dsp_local_on_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(dsp_local_on_enqueue, struct task_struct *p,
+		    u64 enq_flags)
+{
+	s32 pid = p->pid;
+
+	if (bpf_map_push_elem(&queue, &pid, 0))
+		scx_bpf_error("Failed to enqueue %s[%d]", p->comm, p->pid);
+}
+
+void BPF_STRUCT_OPS(dsp_local_on_dispatch, s32 cpu, struct task_struct *prev)
+{
+	s32 pid, target;
+	struct task_struct *p;
+
+	if (bpf_map_pop_elem(&queue, &pid))
+		return;
+
+	p = bpf_task_from_pid(pid);
+	if (!p)
+		return;
+
+	if (p->nr_cpus_allowed == nr_cpus && !is_migration_disabled(p))
+		target = bpf_get_prandom_u32() % nr_cpus;
+	else
+		target = scx_bpf_task_cpu(p);
+
+	scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
+	bpf_task_release(p);
+}
+
+void BPF_STRUCT_OPS(dsp_local_on_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops dsp_local_on_ops = {
+	.select_cpu		= (void *) dsp_local_on_select_cpu,
+	.enqueue		= (void *) dsp_local_on_enqueue,
+	.dispatch		= (void *) dsp_local_on_dispatch,
+	.exit			= (void *) dsp_local_on_exit,
+	.name			= "dsp_local_on",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.c b/tools/testing/selftests/sched_ext/dsp_local_on.c
new file mode 100644
index 000000000000..e1f2ce4abfe6
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/dsp_local_on.c
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <unistd.h>
+#include "dsp_local_on.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct dsp_local_on *skel;
+
+	skel = dsp_local_on__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+
+	skel->rodata->nr_cpus = libbpf_num_possible_cpus();
+	SCX_FAIL_IF(dsp_local_on__load(skel), "Failed to load skel");
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct dsp_local_on *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.dsp_local_on_ops);
+	SCX_FAIL_IF(!link, "Failed to attach struct_ops");
+
+	/* Just sleeping is fine, plenty of scheduling events happening */
+	sleep(1);
+
+	bpf_link__destroy(link);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG));
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct dsp_local_on *skel = ctx;
+
+	dsp_local_on__destroy(skel);
+}
+
+struct scx_test dsp_local_on = {
+	.name = "dsp_local_on",
+	.description = "Verify we can directly dispatch tasks to a local DSQs "
+		       "from ops.dispatch()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&dsp_local_on)
diff --git a/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.bpf.c b/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.bpf.c
new file mode 100644
index 000000000000..e1bd13e48889
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.bpf.c
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+u32 exit_kind;
+
+void BPF_STRUCT_OPS_SLEEPABLE(enq_last_no_enq_fails_exit, struct scx_exit_info *info)
+{
+	exit_kind = info->kind;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops enq_last_no_enq_fails_ops = {
+	.name			= "enq_last_no_enq_fails",
+	/* Need to define ops.enqueue() with SCX_OPS_ENQ_LAST */
+	.flags			= SCX_OPS_ENQ_LAST,
+	.exit			= (void *) enq_last_no_enq_fails_exit,
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c b/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c
new file mode 100644
index 000000000000..d3387ae03679
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/enq_last_no_enq_fails.c
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "enq_last_no_enq_fails.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct enq_last_no_enq_fails *skel;
+
+	skel = enq_last_no_enq_fails__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(enq_last_no_enq_fails__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct enq_last_no_enq_fails *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.enq_last_no_enq_fails_ops);
+	if (!link) {
+		SCX_ERR("Incorrectly failed at attaching scheduler");
+		return SCX_TEST_FAIL;
+	}
+	if (!skel->bss->exit_kind) {
+		SCX_ERR("Incorrectly stayed loaded");
+		return SCX_TEST_FAIL;
+	}
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct enq_last_no_enq_fails *skel = ctx;
+
+	enq_last_no_enq_fails__destroy(skel);
+}
+
+struct scx_test enq_last_no_enq_fails = {
+	.name = "enq_last_no_enq_fails",
+	.description = "Verify we eject a scheduler if we specify "
+		       "the SCX_OPS_ENQ_LAST flag without defining "
+		       "ops.enqueue()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&enq_last_no_enq_fails)
diff --git a/tools/testing/selftests/sched_ext/enq_select_cpu.bpf.c b/tools/testing/selftests/sched_ext/enq_select_cpu.bpf.c
new file mode 100644
index 000000000000..ee2c9b89716e
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/enq_select_cpu.bpf.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+s32 BPF_STRUCT_OPS(enq_select_cpu_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	/* Bounce all tasks to ops.enqueue() */
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(enq_select_cpu_enqueue, struct task_struct *p,
+		    u64 enq_flags)
+{
+	s32 cpu, prev_cpu = scx_bpf_task_cpu(p);
+	bool found = false;
+
+	cpu = scx_bpf_select_cpu_dfl(p, prev_cpu, 0, &found);
+	if (found) {
+		scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL_ON | cpu, SCX_SLICE_DFL, enq_flags);
+		return;
+	}
+
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+}
+
+void BPF_STRUCT_OPS(enq_select_cpu_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+struct task_cpu_arg {
+	pid_t pid;
+};
+
+SEC("syscall")
+int select_cpu_from_user(struct task_cpu_arg *input)
+{
+	struct task_struct *p;
+	bool found = false;
+	s32 cpu;
+
+	p = bpf_task_from_pid(input->pid);
+	if (!p)
+		return -EINVAL;
+
+	bpf_rcu_read_lock();
+	cpu = scx_bpf_select_cpu_dfl(p, bpf_get_smp_processor_id(), 0, &found);
+	if (!found)
+		cpu = -EBUSY;
+	bpf_rcu_read_unlock();
+
+	bpf_task_release(p);
+
+	return cpu;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops enq_select_cpu_ops = {
+	.select_cpu		= (void *)enq_select_cpu_select_cpu,
+	.enqueue		= (void *)enq_select_cpu_enqueue,
+	.exit			= (void *)enq_select_cpu_exit,
+	.name			= "enq_select_cpu",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/enq_select_cpu.c b/tools/testing/selftests/sched_ext/enq_select_cpu.c
new file mode 100644
index 000000000000..340c6f8b86da
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/enq_select_cpu.c
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "enq_select_cpu.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct enq_select_cpu *skel;
+
+	skel = enq_select_cpu__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(enq_select_cpu__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static int test_select_cpu_from_user(const struct enq_select_cpu *skel)
+{
+	int fd, ret;
+	__u64 args[1];
+
+	LIBBPF_OPTS(bpf_test_run_opts, attr,
+		.ctx_in = args,
+		.ctx_size_in = sizeof(args),
+	);
+
+	args[0] = getpid();
+	fd = bpf_program__fd(skel->progs.select_cpu_from_user);
+	if (fd < 0)
+		return fd;
+
+	ret = bpf_prog_test_run_opts(fd, &attr);
+	if (ret < 0)
+		return ret;
+
+	fprintf(stderr, "%s: CPU %d\n", __func__, attr.retval);
+
+	return 0;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct enq_select_cpu *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.enq_select_cpu_ops);
+	if (!link) {
+		SCX_ERR("Failed to attach scheduler");
+		return SCX_TEST_FAIL;
+	}
+
+	/* Pick an idle CPU from user-space */
+	SCX_FAIL_IF(test_select_cpu_from_user(skel), "Failed to pick idle CPU");
+
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_NONE));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct enq_select_cpu *skel = ctx;
+
+	enq_select_cpu__destroy(skel);
+}
+
+struct scx_test enq_select_cpu = {
+	.name = "enq_select_cpu",
+	.description = "Verify scx_bpf_select_cpu_dfl() from multiple contexts",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&enq_select_cpu)
diff --git a/tools/testing/selftests/sched_ext/exit.bpf.c b/tools/testing/selftests/sched_ext/exit.bpf.c
new file mode 100644
index 000000000000..4bc36182d3ff
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/exit.bpf.c
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+#include "exit_test.h"
+
+const volatile int exit_point;
+UEI_DEFINE(uei);
+
+#define EXIT_CLEANLY() scx_bpf_exit(exit_point, "%d", exit_point)
+
+#define DSQ_ID 0
+
+s32 BPF_STRUCT_OPS(exit_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	bool found;
+
+	if (exit_point == EXIT_SELECT_CPU)
+		EXIT_CLEANLY();
+
+	return scx_bpf_select_cpu_dfl(p, prev_cpu, wake_flags, &found);
+}
+
+void BPF_STRUCT_OPS(exit_enqueue, struct task_struct *p, u64 enq_flags)
+{
+	if (exit_point == EXIT_ENQUEUE)
+		EXIT_CLEANLY();
+
+	scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
+}
+
+void BPF_STRUCT_OPS(exit_dispatch, s32 cpu, struct task_struct *p)
+{
+	if (exit_point == EXIT_DISPATCH)
+		EXIT_CLEANLY();
+
+	scx_bpf_dsq_move_to_local(DSQ_ID);
+}
+
+void BPF_STRUCT_OPS(exit_enable, struct task_struct *p)
+{
+	if (exit_point == EXIT_ENABLE)
+		EXIT_CLEANLY();
+}
+
+s32 BPF_STRUCT_OPS(exit_init_task, struct task_struct *p,
+		    struct scx_init_task_args *args)
+{
+	if (exit_point == EXIT_INIT_TASK)
+		EXIT_CLEANLY();
+
+	return 0;
+}
+
+void BPF_STRUCT_OPS(exit_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(exit_init)
+{
+	if (exit_point == EXIT_INIT)
+		EXIT_CLEANLY();
+
+	return scx_bpf_create_dsq(DSQ_ID, -1);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops exit_ops = {
+	.select_cpu		= (void *) exit_select_cpu,
+	.enqueue		= (void *) exit_enqueue,
+	.dispatch		= (void *) exit_dispatch,
+	.init_task		= (void *) exit_init_task,
+	.enable			= (void *) exit_enable,
+	.exit			= (void *) exit_exit,
+	.init			= (void *) exit_init,
+	.name			= "exit",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/exit.c b/tools/testing/selftests/sched_ext/exit.c
new file mode 100644
index 000000000000..ee25824b1cbe
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/exit.c
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <sched.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "exit.bpf.skel.h"
+#include "scx_test.h"
+
+#include "exit_test.h"
+
+static enum scx_test_status run(void *ctx)
+{
+	enum exit_test_case tc;
+
+	for (tc = 0; tc < NUM_EXITS; tc++) {
+		struct exit *skel;
+		struct bpf_link *link;
+		char buf[16];
+
+		/*
+		 * On single-CPU systems, ops.select_cpu() is never
+		 * invoked, so skip this test to avoid getting stuck
+		 * indefinitely.
+		 */
+		if (tc == EXIT_SELECT_CPU && libbpf_num_possible_cpus() == 1)
+			continue;
+
+		skel = exit__open();
+		SCX_ENUM_INIT(skel);
+		skel->rodata->exit_point = tc;
+		exit__load(skel);
+		link = bpf_map__attach_struct_ops(skel->maps.exit_ops);
+		if (!link) {
+			SCX_ERR("Failed to attach scheduler");
+			exit__destroy(skel);
+			return SCX_TEST_FAIL;
+		}
+
+		/* Assumes uei.kind is written last */
+		while (skel->data->uei.kind == EXIT_KIND(SCX_EXIT_NONE))
+			sched_yield();
+
+		SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG_BPF));
+		SCX_EQ(skel->data->uei.exit_code, tc);
+		sprintf(buf, "%d", tc);
+		SCX_ASSERT(!strcmp(skel->data->uei.msg, buf));
+		bpf_link__destroy(link);
+		exit__destroy(skel);
+	}
+
+	return SCX_TEST_PASS;
+}
+
+struct scx_test exit_test = {
+	.name = "exit",
+	.description = "Verify we can cleanly exit a scheduler in multiple places",
+	.run = run,
+};
+REGISTER_SCX_TEST(&exit_test)
diff --git a/tools/testing/selftests/sched_ext/exit_test.h b/tools/testing/selftests/sched_ext/exit_test.h
new file mode 100644
index 000000000000..94f0268b9cb8
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/exit_test.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#ifndef __EXIT_TEST_H__
+#define __EXIT_TEST_H__
+
+enum exit_test_case {
+	EXIT_SELECT_CPU,
+	EXIT_ENQUEUE,
+	EXIT_DISPATCH,
+	EXIT_ENABLE,
+	EXIT_INIT_TASK,
+	EXIT_INIT,
+	NUM_EXITS,
+};
+
+#endif  // # __EXIT_TEST_H__
diff --git a/tools/testing/selftests/sched_ext/hotplug.bpf.c b/tools/testing/selftests/sched_ext/hotplug.bpf.c
new file mode 100644
index 000000000000..6c9f25c9bf53
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/hotplug.bpf.c
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+#include "hotplug_test.h"
+
+UEI_DEFINE(uei);
+
+void BPF_STRUCT_OPS(hotplug_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+static void exit_from_hotplug(s32 cpu, bool onlining)
+{
+	/*
+	 * Ignored, just used to verify that we can invoke blocking kfuncs
+	 * from the hotplug path.
+	 */
+	scx_bpf_create_dsq(0, -1);
+
+	s64 code = SCX_ECODE_ACT_RESTART | HOTPLUG_EXIT_RSN;
+
+	if (onlining)
+		code |= HOTPLUG_ONLINING;
+
+	scx_bpf_exit(code, "hotplug event detected (%d going %s)", cpu,
+		     onlining ? "online" : "offline");
+}
+
+void BPF_STRUCT_OPS_SLEEPABLE(hotplug_cpu_online, s32 cpu)
+{
+	exit_from_hotplug(cpu, true);
+}
+
+void BPF_STRUCT_OPS_SLEEPABLE(hotplug_cpu_offline, s32 cpu)
+{
+	exit_from_hotplug(cpu, false);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops hotplug_cb_ops = {
+	.cpu_online		= (void *) hotplug_cpu_online,
+	.cpu_offline		= (void *) hotplug_cpu_offline,
+	.exit			= (void *) hotplug_exit,
+	.name			= "hotplug_cbs",
+	.timeout_ms		= 1000U,
+};
+
+SEC(".struct_ops.link")
+struct sched_ext_ops hotplug_nocb_ops = {
+	.exit			= (void *) hotplug_exit,
+	.name			= "hotplug_nocbs",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/hotplug.c b/tools/testing/selftests/sched_ext/hotplug.c
new file mode 100644
index 000000000000..0cfbb111a2d0
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/hotplug.c
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <sched.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "hotplug_test.h"
+#include "hotplug.bpf.skel.h"
+#include "scx_test.h"
+#include "util.h"
+
+const char *online_path = "/sys/devices/system/cpu/cpu1/online";
+
+static bool is_cpu_online(void)
+{
+	return file_read_long(online_path) > 0;
+}
+
+static void toggle_online_status(bool online)
+{
+	long val = online ? 1 : 0;
+	int ret;
+
+	ret = file_write_long(online_path, val);
+	if (ret != 0)
+		fprintf(stderr, "Failed to bring CPU %s (%s)",
+			online ? "online" : "offline", strerror(errno));
+}
+
+static enum scx_test_status setup(void **ctx)
+{
+	if (!is_cpu_online())
+		return SCX_TEST_SKIP;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status test_hotplug(bool onlining, bool cbs_defined)
+{
+	struct hotplug *skel;
+	struct bpf_link *link;
+	long kind, code;
+
+	SCX_ASSERT(is_cpu_online());
+
+	skel = hotplug__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(hotplug__load(skel), "Failed to load skel");
+
+	/* Testing the offline -> online path, so go offline before starting */
+	if (onlining)
+		toggle_online_status(0);
+
+	if (cbs_defined) {
+		kind = SCX_KIND_VAL(SCX_EXIT_UNREG_BPF);
+		code = SCX_ECODE_VAL(SCX_ECODE_ACT_RESTART) | HOTPLUG_EXIT_RSN;
+		if (onlining)
+			code |= HOTPLUG_ONLINING;
+	} else {
+		kind = SCX_KIND_VAL(SCX_EXIT_UNREG_KERN);
+		code = SCX_ECODE_VAL(SCX_ECODE_ACT_RESTART) |
+		       SCX_ECODE_VAL(SCX_ECODE_RSN_HOTPLUG);
+	}
+
+	if (cbs_defined)
+		link = bpf_map__attach_struct_ops(skel->maps.hotplug_cb_ops);
+	else
+		link = bpf_map__attach_struct_ops(skel->maps.hotplug_nocb_ops);
+
+	if (!link) {
+		SCX_ERR("Failed to attach scheduler");
+		hotplug__destroy(skel);
+		return SCX_TEST_FAIL;
+	}
+
+	toggle_online_status(onlining ? 1 : 0);
+
+	while (!UEI_EXITED(skel, uei))
+		sched_yield();
+
+	SCX_EQ(skel->data->uei.kind, kind);
+	SCX_EQ(UEI_REPORT(skel, uei), code);
+
+	if (!onlining)
+		toggle_online_status(1);
+
+	bpf_link__destroy(link);
+	hotplug__destroy(skel);
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status test_hotplug_attach(void)
+{
+	struct hotplug *skel;
+	struct bpf_link *link;
+	enum scx_test_status status = SCX_TEST_PASS;
+	long kind, code;
+
+	SCX_ASSERT(is_cpu_online());
+	SCX_ASSERT(scx_hotplug_seq() > 0);
+
+	skel = SCX_OPS_OPEN(hotplug_nocb_ops, hotplug);
+	SCX_ASSERT(skel);
+
+	SCX_OPS_LOAD(skel, hotplug_nocb_ops, hotplug, uei);
+
+	/*
+	 * Take the CPU offline to increment the global hotplug seq, which
+	 * should cause attach to fail due to us setting the hotplug seq above
+	 */
+	toggle_online_status(0);
+	link = bpf_map__attach_struct_ops(skel->maps.hotplug_nocb_ops);
+
+	toggle_online_status(1);
+
+	SCX_ASSERT(link);
+	while (!UEI_EXITED(skel, uei))
+		sched_yield();
+
+	kind = SCX_KIND_VAL(SCX_EXIT_UNREG_KERN);
+	code = SCX_ECODE_VAL(SCX_ECODE_ACT_RESTART) |
+	       SCX_ECODE_VAL(SCX_ECODE_RSN_HOTPLUG);
+	SCX_EQ(skel->data->uei.kind, kind);
+	SCX_EQ(UEI_REPORT(skel, uei), code);
+
+	bpf_link__destroy(link);
+	hotplug__destroy(skel);
+
+	return status;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+
+#define HP_TEST(__onlining, __cbs_defined) ({				\
+	if (test_hotplug(__onlining, __cbs_defined) != SCX_TEST_PASS)	\
+		return SCX_TEST_FAIL;					\
+})
+
+	HP_TEST(true, true);
+	HP_TEST(false, true);
+	HP_TEST(true, false);
+	HP_TEST(false, false);
+
+#undef HP_TEST
+
+	return test_hotplug_attach();
+}
+
+static void cleanup(void *ctx)
+{
+	toggle_online_status(1);
+}
+
+struct scx_test hotplug_test = {
+	.name = "hotplug",
+	.description = "Verify hotplug behavior",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&hotplug_test)
diff --git a/tools/testing/selftests/sched_ext/hotplug_test.h b/tools/testing/selftests/sched_ext/hotplug_test.h
new file mode 100644
index 000000000000..73d236f90787
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/hotplug_test.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#ifndef __HOTPLUG_TEST_H__
+#define __HOTPLUG_TEST_H__
+
+enum hotplug_test_flags {
+	HOTPLUG_EXIT_RSN = 1LLU << 0,
+	HOTPLUG_ONLINING = 1LLU << 1,
+};
+
+#endif  // # __HOTPLUG_TEST_H__
diff --git a/tools/testing/selftests/sched_ext/init_enable_count.bpf.c b/tools/testing/selftests/sched_ext/init_enable_count.bpf.c
new file mode 100644
index 000000000000..5eb9edb1837d
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/init_enable_count.bpf.c
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that verifies that we do proper counting of init, enable, etc
+ * callbacks.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+u64 init_task_cnt, exit_task_cnt, enable_cnt, disable_cnt;
+u64 init_fork_cnt, init_transition_cnt;
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(cnt_init_task, struct task_struct *p,
+			     struct scx_init_task_args *args)
+{
+	__sync_fetch_and_add(&init_task_cnt, 1);
+
+	if (args->fork)
+		__sync_fetch_and_add(&init_fork_cnt, 1);
+	else
+		__sync_fetch_and_add(&init_transition_cnt, 1);
+
+	return 0;
+}
+
+void BPF_STRUCT_OPS(cnt_exit_task, struct task_struct *p)
+{
+	__sync_fetch_and_add(&exit_task_cnt, 1);
+}
+
+void BPF_STRUCT_OPS(cnt_enable, struct task_struct *p)
+{
+	__sync_fetch_and_add(&enable_cnt, 1);
+}
+
+void BPF_STRUCT_OPS(cnt_disable, struct task_struct *p)
+{
+	__sync_fetch_and_add(&disable_cnt, 1);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops init_enable_count_ops = {
+	.init_task	= (void *) cnt_init_task,
+	.exit_task	= (void *) cnt_exit_task,
+	.enable		= (void *) cnt_enable,
+	.disable	= (void *) cnt_disable,
+	.name		= "init_enable_count",
+};
diff --git a/tools/testing/selftests/sched_ext/init_enable_count.c b/tools/testing/selftests/sched_ext/init_enable_count.c
new file mode 100644
index 000000000000..eddf9e0e26e7
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/init_enable_count.c
@@ -0,0 +1,157 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <sched.h>
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include "scx_test.h"
+#include "init_enable_count.bpf.skel.h"
+
+#define SCHED_EXT 7
+
+static enum scx_test_status run_test(bool global)
+{
+	struct init_enable_count *skel;
+	struct bpf_link *link;
+	const u32 num_children = 5, num_pre_forks = 1024;
+	int ret, i, status;
+	struct sched_param param = {};
+	pid_t pids[num_pre_forks];
+
+	skel = init_enable_count__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+
+	if (!global)
+		skel->struct_ops.init_enable_count_ops->flags |= SCX_OPS_SWITCH_PARTIAL;
+
+	SCX_FAIL_IF(init_enable_count__load(skel), "Failed to load skel");
+
+	/*
+	 * Fork a bunch of children before we attach the scheduler so that we
+	 * ensure (at least in practical terms) that there are more tasks that
+	 * transition from SCHED_OTHER -> SCHED_EXT than there are tasks that
+	 * take the fork() path either below or in other processes.
+	 */
+	for (i = 0; i < num_pre_forks; i++) {
+		pids[i] = fork();
+		SCX_FAIL_IF(pids[i] < 0, "Failed to fork child");
+		if (pids[i] == 0) {
+			sleep(1);
+			exit(0);
+		}
+	}
+
+	link = bpf_map__attach_struct_ops(skel->maps.init_enable_count_ops);
+	SCX_FAIL_IF(!link, "Failed to attach struct_ops");
+
+	for (i = 0; i < num_pre_forks; i++) {
+		SCX_FAIL_IF(waitpid(pids[i], &status, 0) != pids[i],
+			    "Failed to wait for pre-forked child\n");
+
+		SCX_FAIL_IF(status != 0, "Pre-forked child %d exited with status %d\n", i,
+			    status);
+	}
+
+	bpf_link__destroy(link);
+	SCX_GE(skel->bss->init_task_cnt, num_pre_forks);
+	SCX_GE(skel->bss->exit_task_cnt, num_pre_forks);
+
+	link = bpf_map__attach_struct_ops(skel->maps.init_enable_count_ops);
+	SCX_FAIL_IF(!link, "Failed to attach struct_ops");
+
+	/* SCHED_EXT children */
+	for (i = 0; i < num_children; i++) {
+		pids[i] = fork();
+		SCX_FAIL_IF(pids[i] < 0, "Failed to fork child");
+
+		if (pids[i] == 0) {
+			ret = sched_setscheduler(0, SCHED_EXT, &param);
+			SCX_BUG_ON(ret, "Failed to set sched to sched_ext");
+
+			/*
+			 * Reset to SCHED_OTHER for half of them. Counts for
+			 * everything should still be the same regardless, as
+			 * ops.disable() is invoked even if a task is still on
+			 * SCHED_EXT before it exits.
+			 */
+			if (i % 2 == 0) {
+				ret = sched_setscheduler(0, SCHED_OTHER, &param);
+				SCX_BUG_ON(ret, "Failed to reset sched to normal");
+			}
+			exit(0);
+		}
+	}
+	for (i = 0; i < num_children; i++) {
+		SCX_FAIL_IF(waitpid(pids[i], &status, 0) != pids[i],
+			    "Failed to wait for SCX child\n");
+
+		SCX_FAIL_IF(status != 0, "SCX child %d exited with status %d\n", i,
+			    status);
+	}
+
+	/* SCHED_OTHER children */
+	for (i = 0; i < num_children; i++) {
+		pids[i] = fork();
+		if (pids[i] == 0)
+			exit(0);
+	}
+
+	for (i = 0; i < num_children; i++) {
+		SCX_FAIL_IF(waitpid(pids[i], &status, 0) != pids[i],
+			    "Failed to wait for normal child\n");
+
+		SCX_FAIL_IF(status != 0, "Normal child %d exited with status %d\n", i,
+			    status);
+	}
+
+	bpf_link__destroy(link);
+
+	SCX_GE(skel->bss->init_task_cnt, 2 * num_children);
+	SCX_GE(skel->bss->exit_task_cnt, 2 * num_children);
+
+	if (global) {
+		SCX_GE(skel->bss->enable_cnt, 2 * num_children);
+		SCX_GE(skel->bss->disable_cnt, 2 * num_children);
+	} else {
+		SCX_EQ(skel->bss->enable_cnt, num_children);
+		SCX_EQ(skel->bss->disable_cnt, num_children);
+	}
+	/*
+	 * We forked a ton of tasks before we attached the scheduler above, so
+	 * this should be fine. Technically it could be flaky if a ton of forks
+	 * are happening at the same time in other processes, but that should
+	 * be exceedingly unlikely.
+	 */
+	SCX_GT(skel->bss->init_transition_cnt, skel->bss->init_fork_cnt);
+	SCX_GE(skel->bss->init_fork_cnt, 2 * num_children);
+
+	init_enable_count__destroy(skel);
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	enum scx_test_status status;
+
+	status = run_test(true);
+	if (status != SCX_TEST_PASS)
+		return status;
+
+	return run_test(false);
+}
+
+struct scx_test init_enable_count = {
+	.name = "init_enable_count",
+	.description = "Verify we correctly count the occurrences of init, "
+		       "enable, etc callbacks.",
+	.run = run,
+};
+REGISTER_SCX_TEST(&init_enable_count)
diff --git a/tools/testing/selftests/sched_ext/maximal.bpf.c b/tools/testing/selftests/sched_ext/maximal.bpf.c
new file mode 100644
index 000000000000..01cf4f3da4e0
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maximal.bpf.c
@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler with every callback defined.
+ *
+ * This scheduler defines every callback.
+ *
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define DSQ_ID 0
+
+s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
+		   u64 wake_flags)
+{
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(maximal_enqueue, struct task_struct *p, u64 enq_flags)
+{
+	scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
+}
+
+void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
+{}
+
+void BPF_STRUCT_OPS(maximal_dispatch, s32 cpu, struct task_struct *prev)
+{
+	scx_bpf_dsq_move_to_local(DSQ_ID);
+}
+
+void BPF_STRUCT_OPS(maximal_runnable, struct task_struct *p, u64 enq_flags)
+{}
+
+void BPF_STRUCT_OPS(maximal_running, struct task_struct *p)
+{}
+
+void BPF_STRUCT_OPS(maximal_stopping, struct task_struct *p, bool runnable)
+{}
+
+void BPF_STRUCT_OPS(maximal_quiescent, struct task_struct *p, u64 deq_flags)
+{}
+
+bool BPF_STRUCT_OPS(maximal_yield, struct task_struct *from,
+		    struct task_struct *to)
+{
+	return false;
+}
+
+bool BPF_STRUCT_OPS(maximal_core_sched_before, struct task_struct *a,
+		    struct task_struct *b)
+{
+	return false;
+}
+
+void BPF_STRUCT_OPS(maximal_set_weight, struct task_struct *p, u32 weight)
+{}
+
+void BPF_STRUCT_OPS(maximal_set_cpumask, struct task_struct *p,
+		    const struct cpumask *cpumask)
+{}
+
+void BPF_STRUCT_OPS(maximal_update_idle, s32 cpu, bool idle)
+{}
+
+void BPF_STRUCT_OPS(maximal_cpu_acquire, s32 cpu,
+		    struct scx_cpu_acquire_args *args)
+{}
+
+void BPF_STRUCT_OPS(maximal_cpu_release, s32 cpu,
+		    struct scx_cpu_release_args *args)
+{}
+
+void BPF_STRUCT_OPS(maximal_cpu_online, s32 cpu)
+{}
+
+void BPF_STRUCT_OPS(maximal_cpu_offline, s32 cpu)
+{}
+
+s32 BPF_STRUCT_OPS(maximal_init_task, struct task_struct *p,
+		   struct scx_init_task_args *args)
+{
+	return 0;
+}
+
+void BPF_STRUCT_OPS(maximal_enable, struct task_struct *p)
+{}
+
+void BPF_STRUCT_OPS(maximal_exit_task, struct task_struct *p,
+		    struct scx_exit_task_args *args)
+{}
+
+void BPF_STRUCT_OPS(maximal_disable, struct task_struct *p)
+{}
+
+s32 BPF_STRUCT_OPS(maximal_cgroup_init, struct cgroup *cgrp,
+		   struct scx_cgroup_init_args *args)
+{
+	return 0;
+}
+
+void BPF_STRUCT_OPS(maximal_cgroup_exit, struct cgroup *cgrp)
+{}
+
+s32 BPF_STRUCT_OPS(maximal_cgroup_prep_move, struct task_struct *p,
+		   struct cgroup *from, struct cgroup *to)
+{
+	return 0;
+}
+
+void BPF_STRUCT_OPS(maximal_cgroup_move, struct task_struct *p,
+		    struct cgroup *from, struct cgroup *to)
+{}
+
+void BPF_STRUCT_OPS(maximal_cgroup_cancel_move, struct task_struct *p,
+	       struct cgroup *from, struct cgroup *to)
+{}
+
+void BPF_STRUCT_OPS(maximal_cgroup_set_weight, struct cgroup *cgrp, u32 weight)
+{}
+
+void BPF_STRUCT_OPS(maximal_cgroup_set_bandwidth, struct cgroup *cgrp,
+		    u64 period_us, u64 quota_us, u64 burst_us)
+{}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(maximal_init)
+{
+	return scx_bpf_create_dsq(DSQ_ID, -1);
+}
+
+void BPF_STRUCT_OPS(maximal_exit, struct scx_exit_info *info)
+{}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops maximal_ops = {
+	.select_cpu		= (void *) maximal_select_cpu,
+	.enqueue		= (void *) maximal_enqueue,
+	.dequeue		= (void *) maximal_dequeue,
+	.dispatch		= (void *) maximal_dispatch,
+	.runnable		= (void *) maximal_runnable,
+	.running		= (void *) maximal_running,
+	.stopping		= (void *) maximal_stopping,
+	.quiescent		= (void *) maximal_quiescent,
+	.yield			= (void *) maximal_yield,
+	.core_sched_before	= (void *) maximal_core_sched_before,
+	.set_weight		= (void *) maximal_set_weight,
+	.set_cpumask		= (void *) maximal_set_cpumask,
+	.update_idle		= (void *) maximal_update_idle,
+	.cpu_acquire		= (void *) maximal_cpu_acquire,
+	.cpu_release		= (void *) maximal_cpu_release,
+	.cpu_online		= (void *) maximal_cpu_online,
+	.cpu_offline		= (void *) maximal_cpu_offline,
+	.init_task		= (void *) maximal_init_task,
+	.enable			= (void *) maximal_enable,
+	.exit_task		= (void *) maximal_exit_task,
+	.disable		= (void *) maximal_disable,
+	.cgroup_init		= (void *) maximal_cgroup_init,
+	.cgroup_exit		= (void *) maximal_cgroup_exit,
+	.cgroup_prep_move	= (void *) maximal_cgroup_prep_move,
+	.cgroup_move		= (void *) maximal_cgroup_move,
+	.cgroup_cancel_move	= (void *) maximal_cgroup_cancel_move,
+	.cgroup_set_weight	= (void *) maximal_cgroup_set_weight,
+	.cgroup_set_bandwidth	= (void *) maximal_cgroup_set_bandwidth,
+	.init			= (void *) maximal_init,
+	.exit			= (void *) maximal_exit,
+	.name			= "maximal",
+};
diff --git a/tools/testing/selftests/sched_ext/maximal.c b/tools/testing/selftests/sched_ext/maximal.c
new file mode 100644
index 000000000000..c6be50a9941d
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maximal.c
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "maximal.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct maximal *skel;
+
+	skel = maximal__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(maximal__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct maximal *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.maximal_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct maximal *skel = ctx;
+
+	maximal__destroy(skel);
+}
+
+struct scx_test maximal = {
+	.name = "maximal",
+	.description = "Verify we can load a scheduler with every callback defined",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&maximal)
diff --git a/tools/testing/selftests/sched_ext/maybe_null.bpf.c b/tools/testing/selftests/sched_ext/maybe_null.bpf.c
new file mode 100644
index 000000000000..cf4ae870cd4e
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maybe_null.bpf.c
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+u64 vtime_test;
+
+void BPF_STRUCT_OPS(maybe_null_running, struct task_struct *p)
+{}
+
+void BPF_STRUCT_OPS(maybe_null_success_dispatch, s32 cpu, struct task_struct *p)
+{
+	if (p != NULL)
+		vtime_test = p->scx.dsq_vtime;
+}
+
+bool BPF_STRUCT_OPS(maybe_null_success_yield, struct task_struct *from,
+		    struct task_struct *to)
+{
+	if (to)
+		bpf_printk("Yielding to %s[%d]", to->comm, to->pid);
+
+	return false;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops maybe_null_success = {
+	.dispatch               = (void *) maybe_null_success_dispatch,
+	.yield			= (void *) maybe_null_success_yield,
+	.enable			= (void *) maybe_null_running,
+	.name			= "minimal",
+};
diff --git a/tools/testing/selftests/sched_ext/maybe_null.c b/tools/testing/selftests/sched_ext/maybe_null.c
new file mode 100644
index 000000000000..aacf0c58ca4f
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maybe_null.c
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "maybe_null.bpf.skel.h"
+#include "maybe_null_fail_dsp.bpf.skel.h"
+#include "maybe_null_fail_yld.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status run(void *ctx)
+{
+	struct maybe_null *skel;
+	struct maybe_null_fail_dsp *fail_dsp;
+	struct maybe_null_fail_yld *fail_yld;
+
+	skel = maybe_null__open_and_load();
+	if (!skel) {
+		SCX_ERR("Failed to open and load maybe_null skel");
+		return SCX_TEST_FAIL;
+	}
+	maybe_null__destroy(skel);
+
+	fail_dsp = maybe_null_fail_dsp__open_and_load();
+	if (fail_dsp) {
+		maybe_null_fail_dsp__destroy(fail_dsp);
+		SCX_ERR("Should failed to open and load maybe_null_fail_dsp skel");
+		return SCX_TEST_FAIL;
+	}
+
+	fail_yld = maybe_null_fail_yld__open_and_load();
+	if (fail_yld) {
+		maybe_null_fail_yld__destroy(fail_yld);
+		SCX_ERR("Should failed to open and load maybe_null_fail_yld skel");
+		return SCX_TEST_FAIL;
+	}
+
+	return SCX_TEST_PASS;
+}
+
+struct scx_test maybe_null = {
+	.name = "maybe_null",
+	.description = "Verify if PTR_MAYBE_NULL works for .dispatch",
+	.run = run,
+};
+REGISTER_SCX_TEST(&maybe_null)
diff --git a/tools/testing/selftests/sched_ext/maybe_null_fail_dsp.bpf.c b/tools/testing/selftests/sched_ext/maybe_null_fail_dsp.bpf.c
new file mode 100644
index 000000000000..ec724d7b33d1
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maybe_null_fail_dsp.bpf.c
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+u64 vtime_test;
+
+void BPF_STRUCT_OPS(maybe_null_running, struct task_struct *p)
+{}
+
+void BPF_STRUCT_OPS(maybe_null_fail_dispatch, s32 cpu, struct task_struct *p)
+{
+	vtime_test = p->scx.dsq_vtime;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops maybe_null_fail = {
+	.dispatch               = (void *) maybe_null_fail_dispatch,
+	.enable			= (void *) maybe_null_running,
+	.name			= "maybe_null_fail_dispatch",
+};
diff --git a/tools/testing/selftests/sched_ext/maybe_null_fail_yld.bpf.c b/tools/testing/selftests/sched_ext/maybe_null_fail_yld.bpf.c
new file mode 100644
index 000000000000..e6552cace020
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/maybe_null_fail_yld.bpf.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+u64 vtime_test;
+
+void BPF_STRUCT_OPS(maybe_null_running, struct task_struct *p)
+{}
+
+bool BPF_STRUCT_OPS(maybe_null_fail_yield, struct task_struct *from,
+		    struct task_struct *to)
+{
+	bpf_printk("Yielding to %s[%d]", to->comm, to->pid);
+
+	return false;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops maybe_null_fail = {
+	.yield			= (void *) maybe_null_fail_yield,
+	.enable			= (void *) maybe_null_running,
+	.name			= "maybe_null_fail_yield",
+};
diff --git a/tools/testing/selftests/sched_ext/minimal.bpf.c b/tools/testing/selftests/sched_ext/minimal.bpf.c
new file mode 100644
index 000000000000..6a7eccef0104
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/minimal.bpf.c
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A completely minimal scheduler.
+ *
+ * This scheduler defines the absolute minimal set of struct sched_ext_ops
+ * fields: its name. It should _not_ fail to be loaded, and can be used to
+ * exercise the default scheduling paths in ext.c.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC(".struct_ops.link")
+struct sched_ext_ops minimal_ops = {
+	.name			= "minimal",
+};
diff --git a/tools/testing/selftests/sched_ext/minimal.c b/tools/testing/selftests/sched_ext/minimal.c
new file mode 100644
index 000000000000..89f7261757ff
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/minimal.c
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "minimal.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct minimal *skel;
+
+	skel = minimal__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(minimal__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct minimal *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.minimal_ops);
+	if (!link) {
+		SCX_ERR("Failed to attach scheduler");
+		return SCX_TEST_FAIL;
+	}
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct minimal *skel = ctx;
+
+	minimal__destroy(skel);
+}
+
+struct scx_test minimal = {
+	.name = "minimal",
+	.description = "Verify we can load a fully minimal scheduler",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&minimal)
diff --git a/tools/testing/selftests/sched_ext/numa.bpf.c b/tools/testing/selftests/sched_ext/numa.bpf.c
new file mode 100644
index 000000000000..a79d86ed54a1
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/numa.bpf.c
@@ -0,0 +1,100 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A scheduler that validates the behavior of the NUMA-aware
+ * functionalities.
+ *
+ * The scheduler creates a separate DSQ for each NUMA node, ensuring tasks
+ * are exclusively processed by CPUs within their respective nodes. Idle
+ * CPUs are selected only within the same node, so task migration can only
+ * occurs between CPUs belonging to the same node.
+ *
+ * Copyright (c) 2025 Andrea Righi <arighi@nvidia.com>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+const volatile unsigned int __COMPAT_SCX_PICK_IDLE_IN_NODE;
+
+static bool is_cpu_idle(s32 cpu, int node)
+{
+	const struct cpumask *idle_cpumask;
+	bool idle;
+
+	idle_cpumask = __COMPAT_scx_bpf_get_idle_cpumask_node(node);
+	idle = bpf_cpumask_test_cpu(cpu, idle_cpumask);
+	scx_bpf_put_cpumask(idle_cpumask);
+
+	return idle;
+}
+
+s32 BPF_STRUCT_OPS(numa_select_cpu,
+		   struct task_struct *p, s32 prev_cpu, u64 wake_flags)
+{
+	int node = __COMPAT_scx_bpf_cpu_node(scx_bpf_task_cpu(p));
+	s32 cpu;
+
+	/*
+	 * We could just use __COMPAT_scx_bpf_pick_any_cpu_node() here,
+	 * since it already tries to pick an idle CPU within the node
+	 * first, but let's use both functions for better testing coverage.
+	 */
+	cpu = __COMPAT_scx_bpf_pick_idle_cpu_node(p->cpus_ptr, node,
+					__COMPAT_SCX_PICK_IDLE_IN_NODE);
+	if (cpu < 0)
+		cpu = __COMPAT_scx_bpf_pick_any_cpu_node(p->cpus_ptr, node,
+						__COMPAT_SCX_PICK_IDLE_IN_NODE);
+
+	if (is_cpu_idle(cpu, node))
+		scx_bpf_error("CPU %d should be marked as busy", cpu);
+
+	if (__COMPAT_scx_bpf_cpu_node(cpu) != node)
+		scx_bpf_error("CPU %d should be in node %d", cpu, node);
+
+	return cpu;
+}
+
+void BPF_STRUCT_OPS(numa_enqueue, struct task_struct *p, u64 enq_flags)
+{
+	int node = __COMPAT_scx_bpf_cpu_node(scx_bpf_task_cpu(p));
+
+	scx_bpf_dsq_insert(p, node, SCX_SLICE_DFL, enq_flags);
+}
+
+void BPF_STRUCT_OPS(numa_dispatch, s32 cpu, struct task_struct *prev)
+{
+	int node = __COMPAT_scx_bpf_cpu_node(cpu);
+
+	scx_bpf_dsq_move_to_local(node);
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(numa_init)
+{
+	int node, err;
+
+	bpf_for(node, 0, __COMPAT_scx_bpf_nr_node_ids()) {
+		err = scx_bpf_create_dsq(node, node);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
+void BPF_STRUCT_OPS(numa_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops numa_ops = {
+	.select_cpu		= (void *)numa_select_cpu,
+	.enqueue		= (void *)numa_enqueue,
+	.dispatch		= (void *)numa_dispatch,
+	.init			= (void *)numa_init,
+	.exit			= (void *)numa_exit,
+	.name			= "numa",
+};
diff --git a/tools/testing/selftests/sched_ext/numa.c b/tools/testing/selftests/sched_ext/numa.c
new file mode 100644
index 000000000000..b060c3b65c82
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/numa.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2025 Andrea Righi <arighi@nvidia.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "numa.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct numa *skel;
+
+	skel = numa__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	skel->rodata->__COMPAT_SCX_PICK_IDLE_IN_NODE = SCX_PICK_IDLE_IN_NODE;
+	skel->struct_ops.numa_ops->flags = SCX_OPS_BUILTIN_IDLE_PER_NODE;
+	SCX_FAIL_IF(numa__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct numa *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.numa_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	/* Just sleeping is fine, plenty of scheduling events happening */
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_NONE));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct numa *skel = ctx;
+
+	numa__destroy(skel);
+}
+
+struct scx_test numa = {
+	.name = "numa",
+	.description = "Verify NUMA-aware functionalities",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&numa)
diff --git a/tools/testing/selftests/sched_ext/peek_dsq.bpf.c b/tools/testing/selftests/sched_ext/peek_dsq.bpf.c
new file mode 100644
index 000000000000..a3faf5bb49d6
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/peek_dsq.bpf.c
@@ -0,0 +1,251 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A BPF program for testing DSQ operations and peek in particular.
+ *
+ * Copyright (c) 2025 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2025 Ryan Newton <ryan.newton@alum.mit.edu>
+ */
+
+#include <scx/common.bpf.h>
+#include <scx/compat.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei); /* Error handling */
+
+#define MAX_SAMPLES 100
+#define MAX_CPUS 512
+#define DSQ_POOL_SIZE 8
+int max_samples = MAX_SAMPLES;
+int max_cpus = MAX_CPUS;
+int dsq_pool_size = DSQ_POOL_SIZE;
+
+/* Global variables to store test results */
+int dsq_peek_result1 = -1;
+long dsq_inserted_pid = -1;
+int insert_test_cpu = -1; /* Set to the cpu that performs the test */
+long dsq_peek_result2 = -1;
+long dsq_peek_result2_pid = -1;
+long dsq_peek_result2_expected = -1;
+int test_dsq_id = 1234; /* Use a simple ID like create_dsq example */
+int real_dsq_id = 1235; /* DSQ for normal operation */
+int enqueue_count = -1;
+int dispatch_count = -1;
+bool debug_ksym_exists;
+
+/* DSQ pool for stress testing */
+int dsq_pool_base_id = 2000;
+int phase1_complete = -1;
+long total_peek_attempts = -1;
+long successful_peeks = -1;
+
+/* BPF map for sharing peek results with userspace */
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__uint(max_entries, MAX_SAMPLES);
+	__type(key, u32);
+	__type(value, long);
+} peek_results SEC(".maps");
+
+static int get_random_dsq_id(void)
+{
+	u64 time = bpf_ktime_get_ns();
+
+	return dsq_pool_base_id + (time % DSQ_POOL_SIZE);
+}
+
+static void record_peek_result(long pid)
+{
+	u32 slot_key;
+	long *slot_pid_ptr;
+	int ix;
+
+	if (pid <= 0)
+		return;
+
+	/* Find an empty slot or one with the same PID */
+	bpf_for(ix, 0, 10) {
+		slot_key = (pid + ix) % MAX_SAMPLES;
+		slot_pid_ptr = bpf_map_lookup_elem(&peek_results, &slot_key);
+		if (!slot_pid_ptr)
+			continue;
+
+		if (*slot_pid_ptr == -1 || *slot_pid_ptr == pid) {
+			*slot_pid_ptr = pid;
+			break;
+		}
+	}
+}
+
+/* Scan all DSQs in the pool and try to move a task to local */
+static int scan_dsq_pool(void)
+{
+	struct task_struct *task;
+	int moved = 0;
+	int i;
+
+	bpf_for(i, 0, DSQ_POOL_SIZE) {
+		int dsq_id = dsq_pool_base_id + i;
+
+		total_peek_attempts++;
+
+		task = __COMPAT_scx_bpf_dsq_peek(dsq_id);
+		if (task) {
+			successful_peeks++;
+			record_peek_result(task->pid);
+
+			/* Try to move this task to local */
+			if (!moved && scx_bpf_dsq_move_to_local(dsq_id) == 0) {
+				moved = 1;
+				break;
+			}
+		}
+	}
+	return moved;
+}
+
+/* Struct_ops scheduler for testing DSQ peek operations */
+void BPF_STRUCT_OPS(peek_dsq_enqueue, struct task_struct *p, u64 enq_flags)
+{
+	struct task_struct *peek_result;
+	int last_insert_test_cpu, cpu;
+
+	enqueue_count++;
+	cpu = bpf_get_smp_processor_id();
+	last_insert_test_cpu = __sync_val_compare_and_swap(&insert_test_cpu, -1, cpu);
+
+	/* Phase 1: Simple insert-then-peek test (only on first task) */
+	if (last_insert_test_cpu == -1) {
+		bpf_printk("peek_dsq_enqueue beginning phase 1 peek test on cpu %d", cpu);
+
+		/* Test 1: Peek empty DSQ - should return NULL */
+		peek_result = __COMPAT_scx_bpf_dsq_peek(test_dsq_id);
+		dsq_peek_result1 = (long)peek_result; /* Should be 0 (NULL) */
+
+		/* Test 2: Insert task into test DSQ for testing in dispatch callback */
+		dsq_inserted_pid = p->pid;
+		scx_bpf_dsq_insert(p, test_dsq_id, 0, enq_flags);
+		dsq_peek_result2_expected = (long)p; /* Expected the task we just inserted */
+	} else if (!phase1_complete) {
+		/* Still in phase 1, use real DSQ */
+		scx_bpf_dsq_insert(p, real_dsq_id, 0, enq_flags);
+	} else {
+		/* Phase 2: Random DSQ insertion for stress testing */
+		int random_dsq_id = get_random_dsq_id();
+
+		scx_bpf_dsq_insert(p, random_dsq_id, 0, enq_flags);
+	}
+}
+
+void BPF_STRUCT_OPS(peek_dsq_dispatch, s32 cpu, struct task_struct *prev)
+{
+	dispatch_count++;
+
+	/* Phase 1: Complete the simple peek test if we inserted a task but
+	 * haven't tested peek yet
+	 */
+	if (insert_test_cpu == cpu && dsq_peek_result2 == -1) {
+		struct task_struct *peek_result;
+
+		bpf_printk("peek_dsq_dispatch completing phase 1 peek test on cpu %d", cpu);
+
+		/* Test 3: Peek DSQ after insert - should return the task we inserted */
+		peek_result = __COMPAT_scx_bpf_dsq_peek(test_dsq_id);
+		/* Store the PID of the peeked task for comparison */
+		dsq_peek_result2 = (long)peek_result;
+		dsq_peek_result2_pid = peek_result ? peek_result->pid : -1;
+
+		/* Now consume the task since we've peeked at it */
+		scx_bpf_dsq_move_to_local(test_dsq_id);
+
+		/* Mark phase 1 as complete */
+		phase1_complete = 1;
+		bpf_printk("Phase 1 complete, starting phase 2 stress testing");
+	} else if (!phase1_complete) {
+		/* Still in phase 1, use real DSQ */
+		scx_bpf_dsq_move_to_local(real_dsq_id);
+	} else {
+		/* Phase 2: Scan all DSQs in the pool and try to move a task */
+		if (!scan_dsq_pool()) {
+			/* No tasks found in DSQ pool, fall back to real DSQ */
+			scx_bpf_dsq_move_to_local(real_dsq_id);
+		}
+	}
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(peek_dsq_init)
+{
+	s32 err;
+	int i;
+
+	/* Always set debug values so we can see which version we're using */
+	debug_ksym_exists = bpf_ksym_exists(scx_bpf_dsq_peek) ? 1 : 0;
+
+	/* Initialize state first */
+	insert_test_cpu = -1;
+	enqueue_count = 0;
+	dispatch_count = 0;
+	phase1_complete = 0;
+	total_peek_attempts = 0;
+	successful_peeks = 0;
+
+	/* Create the test and real DSQs */
+	err = scx_bpf_create_dsq(test_dsq_id, -1);
+	if (err) {
+		scx_bpf_error("Failed to create DSQ %d: %d", test_dsq_id, err);
+		return err;
+	}
+	err = scx_bpf_create_dsq(real_dsq_id, -1);
+	if (err) {
+		scx_bpf_error("Failed to create DSQ %d: %d", test_dsq_id, err);
+		return err;
+	}
+
+	/* Create the DSQ pool for stress testing */
+	bpf_for(i, 0, DSQ_POOL_SIZE) {
+		int dsq_id = dsq_pool_base_id + i;
+
+		err = scx_bpf_create_dsq(dsq_id, -1);
+		if (err) {
+			scx_bpf_error("Failed to create DSQ pool entry %d: %d", dsq_id, err);
+			return err;
+		}
+	}
+
+	/* Initialize the peek results map */
+	bpf_for(i, 0, MAX_SAMPLES) {
+		u32 key = i;
+		long pid = -1;
+
+		bpf_map_update_elem(&peek_results, &key, &pid, BPF_ANY);
+	}
+
+	return 0;
+}
+
+void BPF_STRUCT_OPS(peek_dsq_exit, struct scx_exit_info *ei)
+{
+	int i;
+
+	/* Destroy the primary DSQs */
+	scx_bpf_destroy_dsq(test_dsq_id);
+	scx_bpf_destroy_dsq(real_dsq_id);
+
+	/* Destroy the DSQ pool */
+	bpf_for(i, 0, DSQ_POOL_SIZE) {
+		int dsq_id = dsq_pool_base_id + i;
+
+		scx_bpf_destroy_dsq(dsq_id);
+	}
+
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops peek_dsq_ops = {
+	.enqueue = (void *)peek_dsq_enqueue,
+	.dispatch = (void *)peek_dsq_dispatch,
+	.init = (void *)peek_dsq_init,
+	.exit = (void *)peek_dsq_exit,
+	.name = "peek_dsq",
+};
diff --git a/tools/testing/selftests/sched_ext/peek_dsq.c b/tools/testing/selftests/sched_ext/peek_dsq.c
new file mode 100644
index 000000000000..a717384a3224
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/peek_dsq.c
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Test for DSQ operations including create, destroy, and peek operations.
+ *
+ * Copyright (c) 2025 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2025 Ryan Newton <ryan.newton@alum.mit.edu>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <string.h>
+#include <sched.h>
+#include "peek_dsq.bpf.skel.h"
+#include "scx_test.h"
+
+#define NUM_WORKERS 4
+
+static bool workload_running = true;
+static pthread_t workload_threads[NUM_WORKERS];
+
+/**
+ * Background workload thread that sleeps and wakes rapidly to exercise
+ * the scheduler's enqueue operations and ensure DSQ operations get tested.
+ */
+static void *workload_thread_fn(void *arg)
+{
+	while (workload_running) {
+		/* Sleep for a very short time to trigger scheduler activity */
+		usleep(1000); /* 1ms sleep */
+		/* Yield to ensure we go through the scheduler */
+		sched_yield();
+	}
+	return NULL;
+}
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct peek_dsq *skel;
+
+	skel = peek_dsq__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(peek_dsq__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static int print_observed_pids(struct bpf_map *map, int max_samples, const char *dsq_name)
+{
+	long count = 0;
+
+	printf("Observed %s DSQ peek pids:\n", dsq_name);
+	for (int i = 0; i < max_samples; i++) {
+		long pid;
+		int err;
+
+		err = bpf_map_lookup_elem(bpf_map__fd(map), &i, &pid);
+		if (err == 0) {
+			if (pid == 0) {
+				printf("  Sample %d: NULL peek\n", i);
+			} else if (pid > 0) {
+				printf("  Sample %d: pid %ld\n", i, pid);
+				count++;
+			}
+		} else {
+			printf("  Sample %d: error reading pid (err=%d)\n", i, err);
+		}
+	}
+	printf("Observed ~%ld pids in the %s DSQ(s)\n", count, dsq_name);
+	return count;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct peek_dsq *skel = ctx;
+	bool failed = false;
+	int seconds = 3;
+	int err;
+
+	/* Enable the scheduler to test DSQ operations */
+	printf("Enabling scheduler to test DSQ insert operations...\n");
+
+	struct bpf_link *link =
+		bpf_map__attach_struct_ops(skel->maps.peek_dsq_ops);
+
+	if (!link) {
+		SCX_ERR("Failed to attach struct_ops");
+		return SCX_TEST_FAIL;
+	}
+
+	printf("Starting %d background workload threads...\n", NUM_WORKERS);
+	workload_running = true;
+	for (int i = 0; i < NUM_WORKERS; i++) {
+		err = pthread_create(&workload_threads[i], NULL, workload_thread_fn, NULL);
+		if (err) {
+			SCX_ERR("Failed to create workload thread %d: %s", i, strerror(err));
+			/* Stop already created threads */
+			workload_running = false;
+			for (int j = 0; j < i; j++)
+				pthread_join(workload_threads[j], NULL);
+			bpf_link__destroy(link);
+			return SCX_TEST_FAIL;
+		}
+	}
+
+	printf("Waiting for enqueue events.\n");
+	sleep(seconds);
+	while (skel->data->enqueue_count <= 0) {
+		printf(".");
+		fflush(stdout);
+		sleep(1);
+		seconds++;
+		if (seconds >= 30) {
+			printf("\n\u2717 Timeout waiting for enqueue events\n");
+			/* Stop workload threads and cleanup */
+			workload_running = false;
+			for (int i = 0; i < NUM_WORKERS; i++)
+				pthread_join(workload_threads[i], NULL);
+			bpf_link__destroy(link);
+			return SCX_TEST_FAIL;
+		}
+	}
+
+	workload_running = false;
+	for (int i = 0; i < NUM_WORKERS; i++) {
+		err = pthread_join(workload_threads[i], NULL);
+		if (err) {
+			SCX_ERR("Failed to join workload thread %d: %s", i, strerror(err));
+			bpf_link__destroy(link);
+			return SCX_TEST_FAIL;
+		}
+	}
+	printf("Background workload threads stopped.\n");
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_NONE));
+
+	/* Detach the scheduler */
+	bpf_link__destroy(link);
+
+	printf("Enqueue/dispatch count over %d seconds: %d / %d\n", seconds,
+		skel->data->enqueue_count, skel->data->dispatch_count);
+	printf("Debug: ksym_exists=%d\n",
+	       skel->bss->debug_ksym_exists);
+
+	/* Check DSQ insert result */
+	printf("DSQ insert test done on cpu: %d\n", skel->data->insert_test_cpu);
+	if (skel->data->insert_test_cpu != -1)
+		printf("\u2713 DSQ insert succeeded !\n");
+	else {
+		printf("\u2717 DSQ insert failed or not attempted\n");
+		failed = true;
+	}
+
+	/* Check DSQ peek results */
+	printf("  DSQ peek result 1 (before insert): %d\n",
+	       skel->data->dsq_peek_result1);
+	if (skel->data->dsq_peek_result1 == 0)
+		printf("\u2713 DSQ peek verification success: peek returned NULL!\n");
+	else {
+		printf("\u2717 DSQ peek verification failed\n");
+		failed = true;
+	}
+
+	printf("  DSQ peek result 2 (after insert): %ld\n",
+	       skel->data->dsq_peek_result2);
+	printf("  DSQ peek result 2, expected: %ld\n",
+	       skel->data->dsq_peek_result2_expected);
+	if (skel->data->dsq_peek_result2 ==
+	    skel->data->dsq_peek_result2_expected)
+		printf("\u2713 DSQ peek verification success: peek returned the inserted task!\n");
+	else {
+		printf("\u2717 DSQ peek verification failed\n");
+		failed = true;
+	}
+
+	printf("  Inserted test task -> pid: %ld\n", skel->data->dsq_inserted_pid);
+	printf("  DSQ peek result 2 -> pid: %ld\n", skel->data->dsq_peek_result2_pid);
+
+	int pid_count;
+
+	pid_count = print_observed_pids(skel->maps.peek_results,
+					skel->data->max_samples, "DSQ pool");
+	printf("Total non-null peek observations: %ld out of %ld\n",
+	       skel->data->successful_peeks, skel->data->total_peek_attempts);
+
+	if (skel->bss->debug_ksym_exists && pid_count == 0) {
+		printf("\u2717 DSQ pool test failed: no successful peeks in native mode\n");
+		failed = true;
+	}
+	if (skel->bss->debug_ksym_exists && pid_count > 0)
+		printf("\u2713 DSQ pool test success: observed successful peeks in native mode\n");
+
+	if (failed)
+		return SCX_TEST_FAIL;
+	else
+		return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct peek_dsq *skel = ctx;
+
+	if (workload_running) {
+		workload_running = false;
+		for (int i = 0; i < NUM_WORKERS; i++)
+			pthread_join(workload_threads[i], NULL);
+	}
+
+	peek_dsq__destroy(skel);
+}
+
+struct scx_test peek_dsq = {
+	.name = "peek_dsq",
+	.description =
+		"Test DSQ create/destroy operations and future peek functionality",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&peek_dsq)
diff --git a/tools/testing/selftests/sched_ext/prog_run.bpf.c b/tools/testing/selftests/sched_ext/prog_run.bpf.c
new file mode 100644
index 000000000000..00c267626a68
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/prog_run.bpf.c
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates that we can invoke sched_ext kfuncs in
+ * BPF_PROG_TYPE_SYSCALL programs.
+ *
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+
+#include <scx/common.bpf.h>
+
+UEI_DEFINE(uei);
+
+char _license[] SEC("license") = "GPL";
+
+SEC("syscall")
+int BPF_PROG(prog_run_syscall)
+{
+	scx_bpf_create_dsq(0, -1);
+	scx_bpf_exit(0xdeadbeef, "Exited from PROG_RUN");
+	return 0;
+}
+
+void BPF_STRUCT_OPS(prog_run_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops prog_run_ops = {
+	.exit			= (void *) prog_run_exit,
+	.name			= "prog_run",
+};
diff --git a/tools/testing/selftests/sched_ext/prog_run.c b/tools/testing/selftests/sched_ext/prog_run.c
new file mode 100644
index 000000000000..05974820ca69
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/prog_run.c
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <sched.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "prog_run.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct prog_run *skel;
+
+	skel = prog_run__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(prog_run__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct prog_run *skel = ctx;
+	struct bpf_link *link;
+	int prog_fd, err = 0;
+
+	prog_fd = bpf_program__fd(skel->progs.prog_run_syscall);
+	if (prog_fd < 0) {
+		SCX_ERR("Failed to get BPF_PROG_RUN prog");
+		return SCX_TEST_FAIL;
+	}
+
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
+
+	link = bpf_map__attach_struct_ops(skel->maps.prog_run_ops);
+	if (!link) {
+		SCX_ERR("Failed to attach scheduler");
+		close(prog_fd);
+		return SCX_TEST_FAIL;
+	}
+
+	err = bpf_prog_test_run_opts(prog_fd, &topts);
+	SCX_EQ(err, 0);
+
+	/* Assumes uei.kind is written last */
+	while (skel->data->uei.kind == EXIT_KIND(SCX_EXIT_NONE))
+		sched_yield();
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG_BPF));
+	SCX_EQ(skel->data->uei.exit_code, 0xdeadbeef);
+	close(prog_fd);
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct prog_run *skel = ctx;
+
+	prog_run__destroy(skel);
+}
+
+struct scx_test prog_run = {
+	.name = "prog_run",
+	.description = "Verify we can call into a scheduler with BPF_PROG_RUN, and invoke kfuncs",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&prog_run)
diff --git a/tools/testing/selftests/sched_ext/reload_loop.c b/tools/testing/selftests/sched_ext/reload_loop.c
new file mode 100644
index 000000000000..308211d80436
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/reload_loop.c
@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <pthread.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "maximal.bpf.skel.h"
+#include "scx_test.h"
+
+static struct maximal *skel;
+static pthread_t threads[2];
+
+bool force_exit = false;
+
+static enum scx_test_status setup(void **ctx)
+{
+	skel = maximal__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(maximal__load(skel), "Failed to load skel");
+
+	return SCX_TEST_PASS;
+}
+
+static void *do_reload_loop(void *arg)
+{
+	u32 i;
+
+	for (i = 0; i < 1024 && !force_exit; i++) {
+		struct bpf_link *link;
+
+		link = bpf_map__attach_struct_ops(skel->maps.maximal_ops);
+		if (link)
+			bpf_link__destroy(link);
+	}
+
+	return NULL;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	int err;
+	void *ret;
+
+	err = pthread_create(&threads[0], NULL, do_reload_loop, NULL);
+	SCX_FAIL_IF(err, "Failed to create thread 0");
+
+	err = pthread_create(&threads[1], NULL, do_reload_loop, NULL);
+	SCX_FAIL_IF(err, "Failed to create thread 1");
+
+	SCX_FAIL_IF(pthread_join(threads[0], &ret), "thread 0 failed");
+	SCX_FAIL_IF(pthread_join(threads[1], &ret), "thread 1 failed");
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	force_exit = true;
+	maximal__destroy(skel);
+}
+
+struct scx_test reload_loop = {
+	.name = "reload_loop",
+	.description = "Stress test loading and unloading schedulers repeatedly in a tight loop",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&reload_loop)
diff --git a/tools/testing/selftests/sched_ext/runner.c b/tools/testing/selftests/sched_ext/runner.c
new file mode 100644
index 000000000000..aa2d7d32dda9
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/runner.c
@@ -0,0 +1,212 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <stdio.h>
+#include <unistd.h>
+#include <signal.h>
+#include <libgen.h>
+#include <bpf/bpf.h>
+#include "scx_test.h"
+
+const char help_fmt[] =
+"The runner for sched_ext tests.\n"
+"\n"
+"The runner is statically linked against all testcases, and runs them all serially.\n"
+"It's required for the testcases to be serial, as only a single host-wide sched_ext\n"
+"scheduler may be loaded at any given time."
+"\n"
+"Usage: %s [-t TEST] [-h]\n"
+"\n"
+"  -t TEST       Only run tests whose name includes this string\n"
+"  -s            Include print output for skipped tests\n"
+"  -l            List all available tests\n"
+"  -q            Don't print the test descriptions during run\n"
+"  -h            Display this help and exit\n";
+
+static volatile int exit_req;
+static bool quiet, print_skipped, list;
+
+#define MAX_SCX_TESTS 2048
+
+static struct scx_test __scx_tests[MAX_SCX_TESTS];
+static unsigned __scx_num_tests = 0;
+
+static void sigint_handler(int simple)
+{
+	exit_req = 1;
+}
+
+static void print_test_preamble(const struct scx_test *test, bool quiet)
+{
+	printf("===== START =====\n");
+	printf("TEST: %s\n", test->name);
+	if (!quiet)
+		printf("DESCRIPTION: %s\n", test->description);
+	printf("OUTPUT:\n");
+}
+
+static const char *status_to_result(enum scx_test_status status)
+{
+	switch (status) {
+	case SCX_TEST_PASS:
+	case SCX_TEST_SKIP:
+		return "ok";
+	case SCX_TEST_FAIL:
+		return "not ok";
+	default:
+		return "<UNKNOWN>";
+	}
+}
+
+static void print_test_result(const struct scx_test *test,
+			      enum scx_test_status status,
+			      unsigned int testnum)
+{
+	const char *result = status_to_result(status);
+	const char *directive = status == SCX_TEST_SKIP ? "SKIP " : "";
+
+	printf("%s %u %s # %s\n", result, testnum, test->name, directive);
+	printf("=====  END  =====\n");
+}
+
+static bool should_skip_test(const struct scx_test *test, const char * filter)
+{
+	return !strstr(test->name, filter);
+}
+
+static enum scx_test_status run_test(const struct scx_test *test)
+{
+	enum scx_test_status status;
+	void *context = NULL;
+
+	if (test->setup) {
+		status = test->setup(&context);
+		if (status != SCX_TEST_PASS)
+			return status;
+	}
+
+	status = test->run(context);
+
+	if (test->cleanup)
+		test->cleanup(context);
+
+	return status;
+}
+
+static bool test_valid(const struct scx_test *test)
+{
+	if (!test) {
+		fprintf(stderr, "NULL test detected\n");
+		return false;
+	}
+
+	if (!test->name) {
+		fprintf(stderr,
+			"Test with no name found. Must specify test name.\n");
+		return false;
+	}
+
+	if (!test->description) {
+		fprintf(stderr, "Test %s requires description.\n", test->name);
+		return false;
+	}
+
+	if (!test->run) {
+		fprintf(stderr, "Test %s has no run() callback\n", test->name);
+		return false;
+	}
+
+	return true;
+}
+
+int main(int argc, char **argv)
+{
+	const char *filter = NULL;
+	unsigned testnum = 0, i;
+	unsigned passed = 0, skipped = 0, failed = 0;
+	int opt;
+
+	signal(SIGINT, sigint_handler);
+	signal(SIGTERM, sigint_handler);
+
+	libbpf_set_strict_mode(LIBBPF_STRICT_ALL);
+
+	while ((opt = getopt(argc, argv, "qslt:h")) != -1) {
+		switch (opt) {
+		case 'q':
+			quiet = true;
+			break;
+		case 's':
+			print_skipped = true;
+			break;
+		case 'l':
+			list = true;
+			break;
+		case 't':
+			filter = optarg;
+			break;
+		default:
+			fprintf(stderr, help_fmt, basename(argv[0]));
+			return opt != 'h';
+		}
+	}
+
+	for (i = 0; i < __scx_num_tests; i++) {
+		enum scx_test_status status;
+		struct scx_test *test = &__scx_tests[i];
+
+		if (list) {
+			printf("%s\n", test->name);
+			if (i == (__scx_num_tests - 1))
+				return 0;
+			continue;
+		}
+
+		if (filter && should_skip_test(test, filter)) {
+			/*
+			 * Printing the skipped tests and their preambles can
+			 * add a lot of noise to the runner output. Printing
+			 * this is only really useful for CI, so let's skip it
+			 * by default.
+			 */
+			if (print_skipped) {
+				print_test_preamble(test, quiet);
+				print_test_result(test, SCX_TEST_SKIP, ++testnum);
+			}
+			continue;
+		}
+
+		print_test_preamble(test, quiet);
+		status = run_test(test);
+		print_test_result(test, status, ++testnum);
+		switch (status) {
+		case SCX_TEST_PASS:
+			passed++;
+			break;
+		case SCX_TEST_SKIP:
+			skipped++;
+			break;
+		case SCX_TEST_FAIL:
+			failed++;
+			break;
+		}
+	}
+	printf("\n\n=============================\n\n");
+	printf("RESULTS:\n\n");
+	printf("PASSED:  %u\n", passed);
+	printf("SKIPPED: %u\n", skipped);
+	printf("FAILED:  %u\n", failed);
+
+	return 0;
+}
+
+void scx_test_register(struct scx_test *test)
+{
+	SCX_BUG_ON(!test_valid(test), "Invalid test found");
+	SCX_BUG_ON(__scx_num_tests >= MAX_SCX_TESTS, "Maximum tests exceeded");
+
+	__scx_tests[__scx_num_tests++] = *test;
+}
diff --git a/tools/testing/selftests/sched_ext/scx_test.h b/tools/testing/selftests/sched_ext/scx_test.h
new file mode 100644
index 000000000000..90b8d6915bb7
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/scx_test.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ */
+
+#ifndef __SCX_TEST_H__
+#define __SCX_TEST_H__
+
+#include <errno.h>
+#include <scx/common.h>
+#include <scx/compat.h>
+
+enum scx_test_status {
+	SCX_TEST_PASS = 0,
+	SCX_TEST_SKIP,
+	SCX_TEST_FAIL,
+};
+
+#define EXIT_KIND(__ent) __COMPAT_ENUM_OR_ZERO("scx_exit_kind", #__ent)
+
+struct scx_test {
+	/**
+	 * name - The name of the testcase.
+	 */
+	const char *name;
+
+	/**
+	 * description - A description of your testcase: what it tests and is
+	 * meant to validate.
+	 */
+	const char *description;
+
+	/*
+	 * setup - Setup the test.
+	 * @ctx: A pointer to a context object that will be passed to run and
+	 *	 cleanup.
+	 *
+	 * An optional callback that allows a testcase to perform setup for its
+	 * run. A test may return SCX_TEST_SKIP to skip the run.
+	 */
+	enum scx_test_status (*setup)(void **ctx);
+
+	/*
+	 * run - Run the test.
+	 * @ctx: Context set in the setup() callback. If @ctx was not set in
+	 *	 setup(), it is NULL.
+	 *
+	 * The main test. Callers should return one of:
+	 *
+	 * - SCX_TEST_PASS: Test passed
+	 * - SCX_TEST_SKIP: Test should be skipped
+	 * - SCX_TEST_FAIL: Test failed
+	 *
+	 * This callback must be defined.
+	 */
+	enum scx_test_status (*run)(void *ctx);
+
+	/*
+	 * cleanup - Perform cleanup following the test
+	 * @ctx: Context set in the setup() callback. If @ctx was not set in
+	 *	 setup(), it is NULL.
+	 *
+	 * An optional callback that allows a test to perform cleanup after
+	 * being run. This callback is run even if the run() callback returns
+	 * SCX_TEST_SKIP or SCX_TEST_FAIL. It is not run if setup() returns
+	 * SCX_TEST_SKIP or SCX_TEST_FAIL.
+	 */
+	void (*cleanup)(void *ctx);
+};
+
+void scx_test_register(struct scx_test *test);
+
+#define REGISTER_SCX_TEST(__test)			\
+	__attribute__((constructor))			\
+	static void ___scxregister##__LINE__(void)	\
+	{						\
+		scx_test_register(__test);		\
+	}
+
+#define SCX_ERR(__fmt, ...)						\
+	do {								\
+		fprintf(stderr, "ERR: %s:%d\n", __FILE__, __LINE__);	\
+		fprintf(stderr, __fmt"\n", ##__VA_ARGS__);			\
+	} while (0)
+
+#define SCX_FAIL(__fmt, ...)						\
+	do {								\
+		SCX_ERR(__fmt, ##__VA_ARGS__);				\
+		return SCX_TEST_FAIL;					\
+	} while (0)
+
+#define SCX_FAIL_IF(__cond, __fmt, ...)					\
+	do {								\
+		if (__cond)						\
+			SCX_FAIL(__fmt, ##__VA_ARGS__);			\
+	} while (0)
+
+#define SCX_GT(_x, _y) SCX_FAIL_IF((_x) <= (_y), "Expected %s > %s (%lu > %lu)",	\
+				   #_x, #_y, (u64)(_x), (u64)(_y))
+#define SCX_GE(_x, _y) SCX_FAIL_IF((_x) < (_y), "Expected %s >= %s (%lu >= %lu)",	\
+				   #_x, #_y, (u64)(_x), (u64)(_y))
+#define SCX_LT(_x, _y) SCX_FAIL_IF((_x) >= (_y), "Expected %s < %s (%lu < %lu)",	\
+				   #_x, #_y, (u64)(_x), (u64)(_y))
+#define SCX_LE(_x, _y) SCX_FAIL_IF((_x) > (_y), "Expected %s <= %s (%lu <= %lu)",	\
+				   #_x, #_y, (u64)(_x), (u64)(_y))
+#define SCX_EQ(_x, _y) SCX_FAIL_IF((_x) != (_y), "Expected %s == %s (%lu == %lu)",	\
+				   #_x, #_y, (u64)(_x), (u64)(_y))
+#define SCX_ASSERT(_x) SCX_FAIL_IF(!(_x), "Expected %s to be true (%lu)",		\
+				   #_x, (u64)(_x))
+
+#define SCX_ECODE_VAL(__ecode) ({						\
+        u64 __val = 0;								\
+	bool __found = false;							\
+										\
+	__found = __COMPAT_read_enum("scx_exit_code", #__ecode, &__val);	\
+	SCX_ASSERT(__found);							\
+	(s64)__val;								\
+})
+
+#define SCX_KIND_VAL(__kind) ({							\
+        u64 __val = 0;								\
+	bool __found = false;							\
+										\
+	__found = __COMPAT_read_enum("scx_exit_kind", #__kind, &__val);		\
+	SCX_ASSERT(__found);							\
+	__val;									\
+})
+
+#endif  // # __SCX_TEST_H__
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
new file mode 100644
index 000000000000..13d0f5be788d
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+bool saw_local = false;
+
+static bool task_is_test(const struct task_struct *p)
+{
+	return !bpf_strncmp(p->comm, 9, "select_cpu");
+}
+
+void BPF_STRUCT_OPS(select_cpu_dfl_enqueue, struct task_struct *p,
+		    u64 enq_flags)
+{
+	const struct cpumask *idle_mask = scx_bpf_get_idle_cpumask();
+
+	if (task_is_test(p) &&
+	    bpf_cpumask_test_cpu(scx_bpf_task_cpu(p), idle_mask)) {
+		saw_local = true;
+	}
+	scx_bpf_put_idle_cpumask(idle_mask);
+
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_dfl_ops = {
+	.enqueue		= (void *) select_cpu_dfl_enqueue,
+	.name			= "select_cpu_dfl",
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl.c b/tools/testing/selftests/sched_ext/select_cpu_dfl.c
new file mode 100644
index 000000000000..5b6e045e1109
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl.c
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_dfl.bpf.skel.h"
+#include "scx_test.h"
+
+#define NUM_CHILDREN 1028
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_dfl *skel;
+
+	skel = select_cpu_dfl__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_dfl__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_dfl *skel = ctx;
+	struct bpf_link *link;
+	pid_t pids[NUM_CHILDREN];
+	int i, status;
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_dfl_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		pids[i] = fork();
+		if (pids[i] == 0) {
+			sleep(1);
+			exit(0);
+		}
+	}
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		SCX_EQ(waitpid(pids[i], &status, 0), pids[i]);
+		SCX_EQ(status, 0);
+	}
+
+	SCX_ASSERT(!skel->bss->saw_local);
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_dfl *skel = ctx;
+
+	select_cpu_dfl__destroy(skel);
+}
+
+struct scx_test select_cpu_dfl = {
+	.name = "select_cpu_dfl",
+	.description = "Verify the default ops.select_cpu() dispatches tasks "
+		       "when idles cores are found, and skips ops.enqueue()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_dfl)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
new file mode 100644
index 000000000000..815f1d5d61ac
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation, and with the SCX_OPS_ENQ_DFL_NO_DISPATCH ops flag
+ * specified.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+bool saw_local = false;
+
+/* Per-task scheduling context */
+struct task_ctx {
+	bool	force_local;	/* CPU changed by ops.select_cpu() */
+};
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, struct task_ctx);
+} task_ctx_stor SEC(".maps");
+
+/* Manually specify the signature until the kfunc is added to the scx repo. */
+s32 scx_bpf_select_cpu_dfl(struct task_struct *p, s32 prev_cpu, u64 wake_flags,
+			   bool *found) __ksym;
+
+s32 BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	struct task_ctx *tctx;
+	s32 cpu;
+
+	tctx = bpf_task_storage_get(&task_ctx_stor, p, 0, 0);
+	if (!tctx) {
+		scx_bpf_error("task_ctx lookup failed");
+		return -ESRCH;
+	}
+
+	cpu = scx_bpf_select_cpu_dfl(p, prev_cpu, wake_flags,
+				     &tctx->force_local);
+
+	return cpu;
+}
+
+void BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_enqueue, struct task_struct *p,
+		    u64 enq_flags)
+{
+	u64 dsq_id = SCX_DSQ_GLOBAL;
+	struct task_ctx *tctx;
+
+	tctx = bpf_task_storage_get(&task_ctx_stor, p, 0, 0);
+	if (!tctx) {
+		scx_bpf_error("task_ctx lookup failed");
+		return;
+	}
+
+	if (tctx->force_local) {
+		dsq_id = SCX_DSQ_LOCAL;
+		tctx->force_local = false;
+		saw_local = true;
+	}
+
+	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, enq_flags);
+}
+
+s32 BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_init_task,
+		   struct task_struct *p, struct scx_init_task_args *args)
+{
+	if (bpf_task_storage_get(&task_ctx_stor, p, 0,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE))
+		return 0;
+	else
+		return -ENOMEM;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_dfl_nodispatch_ops = {
+	.select_cpu		= (void *) select_cpu_dfl_nodispatch_select_cpu,
+	.enqueue		= (void *) select_cpu_dfl_nodispatch_enqueue,
+	.init_task		= (void *) select_cpu_dfl_nodispatch_init_task,
+	.name			= "select_cpu_dfl_nodispatch",
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.c b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.c
new file mode 100644
index 000000000000..9b5d232efb7f
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.c
@@ -0,0 +1,75 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_dfl_nodispatch.bpf.skel.h"
+#include "scx_test.h"
+
+#define NUM_CHILDREN 1028
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_dfl_nodispatch *skel;
+
+	skel = select_cpu_dfl_nodispatch__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_dfl_nodispatch__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_dfl_nodispatch *skel = ctx;
+	struct bpf_link *link;
+	pid_t pids[NUM_CHILDREN];
+	int i, status;
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_dfl_nodispatch_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		pids[i] = fork();
+		if (pids[i] == 0) {
+			sleep(1);
+			exit(0);
+		}
+	}
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		SCX_EQ(waitpid(pids[i], &status, 0), pids[i]);
+		SCX_EQ(status, 0);
+	}
+
+	SCX_ASSERT(skel->bss->saw_local);
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_dfl_nodispatch *skel = ctx;
+
+	select_cpu_dfl_nodispatch__destroy(skel);
+}
+
+struct scx_test select_cpu_dfl_nodispatch = {
+	.name = "select_cpu_dfl_nodispatch",
+	.description = "Verify behavior of scx_bpf_select_cpu_dfl() in "
+		       "ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_dfl_nodispatch)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
new file mode 100644
index 000000000000..4bb99699e920
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+s32 BPF_STRUCT_OPS(select_cpu_dispatch_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	u64 dsq_id = SCX_DSQ_LOCAL;
+	s32 cpu = prev_cpu;
+
+	if (scx_bpf_test_and_clear_cpu_idle(cpu))
+		goto dispatch;
+
+	cpu = scx_bpf_pick_idle_cpu(p->cpus_ptr, 0);
+	if (cpu >= 0)
+		goto dispatch;
+
+	dsq_id = SCX_DSQ_GLOBAL;
+	cpu = prev_cpu;
+
+dispatch:
+	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, 0);
+	return cpu;
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_dispatch_ops = {
+	.select_cpu		= (void *) select_cpu_dispatch_select_cpu,
+	.name			= "select_cpu_dispatch",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch.c
new file mode 100644
index 000000000000..80283dbc41b7
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch.c
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_dispatch.bpf.skel.h"
+#include "scx_test.h"
+
+#define NUM_CHILDREN 1028
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_dispatch *skel;
+
+	skel = select_cpu_dispatch__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_dispatch__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_dispatch *skel = ctx;
+	struct bpf_link *link;
+	pid_t pids[NUM_CHILDREN];
+	int i, status;
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_dispatch_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		pids[i] = fork();
+		if (pids[i] == 0) {
+			sleep(1);
+			exit(0);
+		}
+	}
+
+	for (i = 0; i < NUM_CHILDREN; i++) {
+		SCX_EQ(waitpid(pids[i], &status, 0), pids[i]);
+		SCX_EQ(status, 0);
+	}
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_dispatch *skel = ctx;
+
+	select_cpu_dispatch__destroy(skel);
+}
+
+struct scx_test select_cpu_dispatch = {
+	.name = "select_cpu_dispatch",
+	.description = "Test direct dispatching to built-in DSQs from "
+		       "ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_dispatch)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
new file mode 100644
index 000000000000..2a75de11b2cf
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+s32 BPF_STRUCT_OPS(select_cpu_dispatch_bad_dsq_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	/* Dispatching to a random DSQ should fail. */
+	scx_bpf_dsq_insert(p, 0xcafef00d, SCX_SLICE_DFL, 0);
+
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(select_cpu_dispatch_bad_dsq_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_dispatch_bad_dsq_ops = {
+	.select_cpu		= (void *) select_cpu_dispatch_bad_dsq_select_cpu,
+	.exit			= (void *) select_cpu_dispatch_bad_dsq_exit,
+	.name			= "select_cpu_dispatch_bad_dsq",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.c
new file mode 100644
index 000000000000..5e72ebbc90a5
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_dispatch_bad_dsq.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_dispatch_bad_dsq *skel;
+
+	skel = select_cpu_dispatch_bad_dsq__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_dispatch_bad_dsq__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_dispatch_bad_dsq *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_dispatch_bad_dsq_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_dispatch_bad_dsq *skel = ctx;
+
+	select_cpu_dispatch_bad_dsq__destroy(skel);
+}
+
+struct scx_test select_cpu_dispatch_bad_dsq = {
+	.name = "select_cpu_dispatch_bad_dsq",
+	.description = "Verify graceful failure if we direct-dispatch to a "
+		       "bogus DSQ in ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_dispatch_bad_dsq)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
new file mode 100644
index 000000000000..99d075695c97
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates the behavior of direct dispatching with a default
+ * select_cpu implementation.
+ *
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+UEI_DEFINE(uei);
+
+s32 BPF_STRUCT_OPS(select_cpu_dispatch_dbl_dsp_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	/* Dispatching twice in a row is disallowed. */
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
+
+	return prev_cpu;
+}
+
+void BPF_STRUCT_OPS(select_cpu_dispatch_dbl_dsp_exit, struct scx_exit_info *ei)
+{
+	UEI_RECORD(uei, ei);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_dispatch_dbl_dsp_ops = {
+	.select_cpu		= (void *) select_cpu_dispatch_dbl_dsp_select_cpu,
+	.exit			= (void *) select_cpu_dispatch_dbl_dsp_exit,
+	.name			= "select_cpu_dispatch_dbl_dsp",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.c
new file mode 100644
index 000000000000..aa85949478bc
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.c
@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2023 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2023 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2023 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_dispatch_dbl_dsp.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_dispatch_dbl_dsp *skel;
+
+	skel = select_cpu_dispatch_dbl_dsp__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_dispatch_dbl_dsp__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_dispatch_dbl_dsp *skel = ctx;
+	struct bpf_link *link;
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_dispatch_dbl_dsp_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	sleep(1);
+
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_dispatch_dbl_dsp *skel = ctx;
+
+	select_cpu_dispatch_dbl_dsp__destroy(skel);
+}
+
+struct scx_test select_cpu_dispatch_dbl_dsp = {
+	.name = "select_cpu_dispatch_dbl_dsp",
+	.description = "Verify graceful failure if we dispatch twice to a "
+		       "DSQ in ops.select_cpu()",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_dispatch_dbl_dsp)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
new file mode 100644
index 000000000000..bfcb96cd4954
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * A scheduler that validates that enqueue flags are properly stored and
+ * applied at dispatch time when a task is directly dispatched from
+ * ops.select_cpu(). We validate this by using scx_bpf_dsq_insert_vtime(),
+ * and making the test a very basic vtime scheduler.
+ *
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+
+#include <scx/common.bpf.h>
+
+char _license[] SEC("license") = "GPL";
+
+volatile bool consumed;
+
+static u64 vtime_now;
+
+#define VTIME_DSQ 0
+
+static inline bool vtime_before(u64 a, u64 b)
+{
+	return (s64)(a - b) < 0;
+}
+
+static inline u64 task_vtime(const struct task_struct *p)
+{
+	u64 vtime = p->scx.dsq_vtime;
+
+	if (vtime_before(vtime, vtime_now - SCX_SLICE_DFL))
+		return vtime_now - SCX_SLICE_DFL;
+	else
+		return vtime;
+}
+
+s32 BPF_STRUCT_OPS(select_cpu_vtime_select_cpu, struct task_struct *p,
+		   s32 prev_cpu, u64 wake_flags)
+{
+	s32 cpu;
+
+	cpu = scx_bpf_pick_idle_cpu(p->cpus_ptr, 0);
+	if (cpu >= 0)
+		goto ddsp;
+
+	cpu = prev_cpu;
+	scx_bpf_test_and_clear_cpu_idle(cpu);
+ddsp:
+	scx_bpf_dsq_insert_vtime(p, VTIME_DSQ, SCX_SLICE_DFL, task_vtime(p), 0);
+	return cpu;
+}
+
+void BPF_STRUCT_OPS(select_cpu_vtime_dispatch, s32 cpu, struct task_struct *p)
+{
+	if (scx_bpf_dsq_move_to_local(VTIME_DSQ))
+		consumed = true;
+}
+
+void BPF_STRUCT_OPS(select_cpu_vtime_running, struct task_struct *p)
+{
+	if (vtime_before(vtime_now, p->scx.dsq_vtime))
+		vtime_now = p->scx.dsq_vtime;
+}
+
+void BPF_STRUCT_OPS(select_cpu_vtime_stopping, struct task_struct *p,
+		    bool runnable)
+{
+	p->scx.dsq_vtime += (SCX_SLICE_DFL - p->scx.slice) * 100 / p->scx.weight;
+}
+
+void BPF_STRUCT_OPS(select_cpu_vtime_enable, struct task_struct *p)
+{
+	p->scx.dsq_vtime = vtime_now;
+}
+
+s32 BPF_STRUCT_OPS_SLEEPABLE(select_cpu_vtime_init)
+{
+	return scx_bpf_create_dsq(VTIME_DSQ, -1);
+}
+
+SEC(".struct_ops.link")
+struct sched_ext_ops select_cpu_vtime_ops = {
+	.select_cpu		= (void *) select_cpu_vtime_select_cpu,
+	.dispatch		= (void *) select_cpu_vtime_dispatch,
+	.running		= (void *) select_cpu_vtime_running,
+	.stopping		= (void *) select_cpu_vtime_stopping,
+	.enable			= (void *) select_cpu_vtime_enable,
+	.init			= (void *) select_cpu_vtime_init,
+	.name			= "select_cpu_vtime",
+	.timeout_ms		= 1000U,
+};
diff --git a/tools/testing/selftests/sched_ext/select_cpu_vtime.c b/tools/testing/selftests/sched_ext/select_cpu_vtime.c
new file mode 100644
index 000000000000..1e9b5c9bfff1
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/select_cpu_vtime.c
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include <sys/wait.h>
+#include <unistd.h>
+#include "select_cpu_vtime.bpf.skel.h"
+#include "scx_test.h"
+
+static enum scx_test_status setup(void **ctx)
+{
+	struct select_cpu_vtime *skel;
+
+	skel = select_cpu_vtime__open();
+	SCX_FAIL_IF(!skel, "Failed to open");
+	SCX_ENUM_INIT(skel);
+	SCX_FAIL_IF(select_cpu_vtime__load(skel), "Failed to load skel");
+
+	*ctx = skel;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	struct select_cpu_vtime *skel = ctx;
+	struct bpf_link *link;
+
+	SCX_ASSERT(!skel->bss->consumed);
+
+	link = bpf_map__attach_struct_ops(skel->maps.select_cpu_vtime_ops);
+	SCX_FAIL_IF(!link, "Failed to attach scheduler");
+
+	sleep(1);
+
+	SCX_ASSERT(skel->bss->consumed);
+
+	bpf_link__destroy(link);
+
+	return SCX_TEST_PASS;
+}
+
+static void cleanup(void *ctx)
+{
+	struct select_cpu_vtime *skel = ctx;
+
+	select_cpu_vtime__destroy(skel);
+}
+
+struct scx_test select_cpu_vtime = {
+	.name = "select_cpu_vtime",
+	.description = "Test doing direct vtime-dispatching from "
+		       "ops.select_cpu(), to a non-built-in DSQ",
+	.setup = setup,
+	.run = run,
+	.cleanup = cleanup,
+};
+REGISTER_SCX_TEST(&select_cpu_vtime)
diff --git a/tools/testing/selftests/sched_ext/test_example.c b/tools/testing/selftests/sched_ext/test_example.c
new file mode 100644
index 000000000000..ce36cdf03cdc
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/test_example.c
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 Tejun Heo <tj@kernel.org>
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <bpf/bpf.h>
+#include <scx/common.h>
+#include "scx_test.h"
+
+static bool setup_called = false;
+static bool run_called = false;
+static bool cleanup_called = false;
+
+static int context = 10;
+
+static enum scx_test_status setup(void **ctx)
+{
+	setup_called = true;
+	*ctx = &context;
+
+	return SCX_TEST_PASS;
+}
+
+static enum scx_test_status run(void *ctx)
+{
+	int *arg = ctx;
+
+	SCX_ASSERT(setup_called);
+	SCX_ASSERT(!run_called && !cleanup_called);
+	SCX_EQ(*arg, context);
+
+	run_called = true;
+	return SCX_TEST_PASS;
+}
+
+static void cleanup (void *ctx)
+{
+	SCX_BUG_ON(!run_called || cleanup_called, "Wrong callbacks invoked");
+}
+
+struct scx_test example = {
+	.name		= "example",
+	.description	= "Validate the basic function of the test suite itself",
+	.setup		= setup,
+	.run		= run,
+	.cleanup	= cleanup,
+};
+REGISTER_SCX_TEST(&example)
diff --git a/tools/testing/selftests/sched_ext/util.c b/tools/testing/selftests/sched_ext/util.c
new file mode 100644
index 000000000000..e47769c91918
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/util.c
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <dvernet@meta.com>
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Returns read len on success, or -errno on failure. */
+static ssize_t read_text(const char *path, char *buf, size_t max_len)
+{
+	ssize_t len;
+	int fd;
+
+	fd = open(path, O_RDONLY);
+	if (fd < 0)
+		return -errno;
+
+	len = read(fd, buf, max_len - 1);
+
+	if (len >= 0)
+		buf[len] = 0;
+
+	close(fd);
+	return len < 0 ? -errno : len;
+}
+
+/* Returns written len on success, or -errno on failure. */
+static ssize_t write_text(const char *path, char *buf, ssize_t len)
+{
+	int fd;
+	ssize_t written;
+
+	fd = open(path, O_WRONLY | O_APPEND);
+	if (fd < 0)
+		return -errno;
+
+	written = write(fd, buf, len);
+	close(fd);
+	return written < 0 ? -errno : written;
+}
+
+long file_read_long(const char *path)
+{
+	char buf[128];
+
+
+	if (read_text(path, buf, sizeof(buf)) <= 0)
+		return -1;
+
+	return atol(buf);
+}
+
+int file_write_long(const char *path, long val)
+{
+	char buf[64];
+	int ret;
+
+	ret = sprintf(buf, "%lu", val);
+	if (ret < 0)
+		return ret;
+
+	if (write_text(path, buf, sizeof(buf)) <= 0)
+		return -1;
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sched_ext/util.h b/tools/testing/selftests/sched_ext/util.h
new file mode 100644
index 000000000000..bc13dfec1267
--- /dev/null
+++ b/tools/testing/selftests/sched_ext/util.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
+ * Copyright (c) 2024 David Vernet <void@manifault.com>
+ */
+
+#ifndef __SCX_TEST_UTIL_H__
+#define __SCX_TEST_UTIL_H__
+
+long file_read_long(const char *path);
+int file_write_long(const char *path, long val);
+
+#endif // __SCX_TEST_H__
diff --git a/tools/testing/selftests/seccomp/.gitignore b/tools/testing/selftests/seccomp/.gitignore
index 346d83ca8069..dec678577f9c 100644
--- a/tools/testing/selftests/seccomp/.gitignore
+++ b/tools/testing/selftests/seccomp/.gitignore
@@ -1 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
 seccomp_bpf
+seccomp_benchmark
diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index 8401e87e34e1..584fba487037 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -1,10 +1,7 @@
-TEST_PROGS := seccomp_bpf
-CFLAGS += -Wl,-no-as-needed -Wall
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -Wl,-no-as-needed -Wall $(KHDR_INCLUDES)
 LDFLAGS += -lpthread
+LDLIBS += -lcap
 
-all: $(TEST_PROGS)
-
+TEST_GEN_PROGS := seccomp_bpf seccomp_benchmark
 include ../lib.mk
-
-clean:
-	$(RM) $(TEST_PROGS)
diff --git a/tools/testing/selftests/seccomp/config b/tools/testing/selftests/seccomp/config
new file mode 100644
index 000000000000..ad431a5178fb
--- /dev/null
+++ b/tools/testing/selftests/seccomp/config
@@ -0,0 +1,4 @@
+CONFIG_PID_NS=y
+CONFIG_SECCOMP=y
+CONFIG_SECCOMP_FILTER=y
+CONFIG_USER_NS=y
diff --git a/tools/testing/selftests/seccomp/seccomp_benchmark.c b/tools/testing/selftests/seccomp/seccomp_benchmark.c
new file mode 100644
index 000000000000..ea4068cdefd6
--- /dev/null
+++ b/tools/testing/selftests/seccomp/seccomp_benchmark.c
@@ -0,0 +1,306 @@
+/*
+ * Strictly speaking, this is not a test. But it can report during test
+ * runs so relative performance can be measured.
+ */
+#define _GNU_SOURCE
+#include <assert.h>
+#include <err.h>
+#include <limits.h>
+#include <sched.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <linux/filter.h>
+#include <linux/seccomp.h>
+#include <sys/param.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+
+#include "kselftest.h"
+
+unsigned long long timing(clockid_t clk_id, unsigned long long samples)
+{
+	struct timespec start, finish;
+	unsigned long long i;
+	pid_t pid, ret;
+
+	pid = getpid();
+	assert(clock_gettime(clk_id, &start) == 0);
+	for (i = 0; i < samples; i++) {
+		ret = syscall(__NR_getpid);
+		assert(pid == ret);
+	}
+	assert(clock_gettime(clk_id, &finish) == 0);
+
+	i = finish.tv_sec - start.tv_sec;
+	i *= 1000000000ULL;
+	i += finish.tv_nsec - start.tv_nsec;
+
+	ksft_print_msg("%lu.%09lu - %lu.%09lu = %llu (%.1fs)\n",
+		       finish.tv_sec, finish.tv_nsec,
+		       start.tv_sec, start.tv_nsec,
+		       i, (double)i / 1000000000.0);
+
+	return i;
+}
+
+unsigned long long calibrate(void)
+{
+	struct timespec start, finish;
+	unsigned long long i, samples, step = 9973;
+	pid_t pid, ret;
+	int seconds = 15;
+
+	ksft_print_msg("Calibrating sample size for %d seconds worth of syscalls ...\n", seconds);
+
+	samples = 0;
+	pid = getpid();
+	assert(clock_gettime(CLOCK_MONOTONIC, &start) == 0);
+	do {
+		for (i = 0; i < step; i++) {
+			ret = syscall(__NR_getpid);
+			assert(pid == ret);
+		}
+		assert(clock_gettime(CLOCK_MONOTONIC, &finish) == 0);
+
+		samples += step;
+		i = finish.tv_sec - start.tv_sec;
+		i *= 1000000000ULL;
+		i += finish.tv_nsec - start.tv_nsec;
+	} while (i < 1000000000ULL);
+
+	return samples * seconds;
+}
+
+bool approx(int i_one, int i_two)
+{
+	/*
+	 * This continues to be a noisy test. Instead of a 1% comparison
+	 * go with 10%.
+	 */
+	double one = i_one, one_bump = one * 0.1;
+	double two = i_two, two_bump = two * 0.1;
+
+	one_bump = one + MAX(one_bump, 2.0);
+	two_bump = two + MAX(two_bump, 2.0);
+
+	/* Equal to, or within 1% or 2 digits */
+	if (one == two ||
+	    (one > two && one <= two_bump) ||
+	    (two > one && two <= one_bump))
+		return true;
+	return false;
+}
+
+bool le(int i_one, int i_two)
+{
+	if (i_one <= i_two)
+		return true;
+	return false;
+}
+
+long compare(const char *name_one, const char *name_eval, const char *name_two,
+	     unsigned long long one, bool (*eval)(int, int), unsigned long long two,
+	     bool skip)
+{
+	bool good;
+
+	if (skip) {
+		ksft_test_result_skip("%s %s %s\n", name_one, name_eval,
+				      name_two);
+		return 0;
+	}
+
+	ksft_print_msg("\t%s %s %s (%lld %s %lld): ", name_one, name_eval, name_two,
+		       (long long)one, name_eval, (long long)two);
+	if (one > INT_MAX) {
+		ksft_print_msg("Miscalculation! Measurement went negative: %lld\n", (long long)one);
+		good = false;
+		goto out;
+	}
+	if (two > INT_MAX) {
+		ksft_print_msg("Miscalculation! Measurement went negative: %lld\n", (long long)two);
+		good = false;
+		goto out;
+	}
+
+	good = eval(one, two);
+	printf("%s\n", good ? "✔️" : "❌");
+
+out:
+	ksft_test_result(good, "%s %s %s\n", name_one, name_eval, name_two);
+
+	return good ? 0 : 1;
+}
+
+/* Pin to a single CPU so the benchmark won't bounce around the system. */
+void affinity(void)
+{
+	long cpu;
+	ulong ncores = sysconf(_SC_NPROCESSORS_CONF);
+	cpu_set_t *setp = CPU_ALLOC(ncores);
+	ulong setsz = CPU_ALLOC_SIZE(ncores);
+
+	/*
+	 * Totally unscientific way to avoid CPUs that might be busier:
+	 * choose the highest CPU instead of the lowest.
+	 */
+	for (cpu = ncores - 1; cpu >= 0; cpu--) {
+		CPU_ZERO_S(setsz, setp);
+		CPU_SET_S(cpu, setsz, setp);
+		if (sched_setaffinity(getpid(), setsz, setp) == -1)
+			continue;
+		printf("Pinned to CPU %lu of %lu\n", cpu + 1, ncores);
+		goto out;
+	}
+	fprintf(stderr, "Could not set CPU affinity -- calibration may not work well");
+
+out:
+	CPU_FREE(setp);
+}
+
+int main(int argc, char *argv[])
+{
+	struct sock_filter bitmap_filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS, offsetof(struct seccomp_data, nr)),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog bitmap_prog = {
+		.len = (unsigned short)ARRAY_SIZE(bitmap_filter),
+		.filter = bitmap_filter,
+	};
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS, offsetof(struct seccomp_data, args[0])),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	long ret, bits;
+	unsigned long long samples, calc;
+	unsigned long long native, filter1, filter2, bitmap1, bitmap2;
+	unsigned long long entry, per_filter1, per_filter2;
+	bool skip = false;
+
+	setbuf(stdout, NULL);
+
+	ksft_print_header();
+	ksft_set_plan(7);
+
+	ksft_print_msg("Running on:\n");
+	ksft_print_msg("%s", "");
+	system("uname -a");
+
+	ksft_print_msg("Current BPF sysctl settings:\n");
+	/* Avoid using "sysctl" which may not be installed. */
+	ksft_print_msg("%s", "");
+	system("grep -H . /proc/sys/net/core/bpf_jit_enable");
+	ksft_print_msg("%s", "");
+	system("grep -H . /proc/sys/net/core/bpf_jit_harden");
+
+	affinity();
+
+	if (argc > 1)
+		samples = strtoull(argv[1], NULL, 0);
+	else
+		samples = calibrate();
+
+	ksft_print_msg("Benchmarking %llu syscalls...\n", samples);
+
+	/* Native call */
+	native = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	ksft_print_msg("getpid native: %llu ns\n", native);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	assert(ret == 0);
+
+	/* One filter resulting in a bitmap */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog);
+	assert(ret == 0);
+
+	bitmap1 = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	ksft_print_msg("getpid RET_ALLOW 1 filter (bitmap): %llu ns\n", bitmap1);
+
+	/* Second filter resulting in a bitmap */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog);
+	assert(ret == 0);
+
+	bitmap2 = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	ksft_print_msg("getpid RET_ALLOW 2 filters (bitmap): %llu ns\n", bitmap2);
+
+	/* Third filter, can no longer be converted to bitmap */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	assert(ret == 0);
+
+	filter1 = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	ksft_print_msg("getpid RET_ALLOW 3 filters (full): %llu ns\n", filter1);
+
+	/* Fourth filter, can not be converted to bitmap because of filter 3 */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &bitmap_prog);
+	assert(ret == 0);
+
+	filter2 = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	ksft_print_msg("getpid RET_ALLOW 4 filters (full): %llu ns\n", filter2);
+
+	/* Estimations */
+#define ESTIMATE(fmt, var, what)	do {			\
+		var = (what);					\
+		ksft_print_msg("Estimated " fmt ": %llu ns\n", var);	\
+		if (var > INT_MAX) {				\
+			skip = true;				\
+			ret |= 1;				\
+		}						\
+	} while (0)
+
+	ESTIMATE("total seccomp overhead for 1 bitmapped filter", calc,
+		 bitmap1 - native);
+	ESTIMATE("total seccomp overhead for 2 bitmapped filters", calc,
+		 bitmap2 - native);
+	ESTIMATE("total seccomp overhead for 3 full filters", calc,
+		 filter1 - native);
+	ESTIMATE("total seccomp overhead for 4 full filters", calc,
+		 filter2 - native);
+	ESTIMATE("seccomp entry overhead", entry,
+		 bitmap1 - native - (bitmap2 - bitmap1));
+	ESTIMATE("seccomp per-filter overhead (last 2 diff)", per_filter1,
+		 filter2 - filter1);
+	ESTIMATE("seccomp per-filter overhead (filters / 4)", per_filter2,
+		 (filter2 - native - entry) / 4);
+
+	ksft_print_msg("Expectations:\n");
+	ret |= compare("native", "≤", "1 bitmap", native, le, bitmap1,
+		       skip);
+	bits = compare("native", "≤", "1 filter", native, le, filter1,
+		       skip);
+	if (bits)
+		skip = true;
+
+	ret |= compare("per-filter (last 2 diff)", "≈", "per-filter (filters / 4)",
+		       per_filter1, approx, per_filter2, skip);
+
+	bits = compare("1 bitmapped", "≈", "2 bitmapped",
+		       bitmap1 - native, approx, bitmap2 - native, skip);
+	if (bits) {
+		ksft_print_msg("Skipping constant action bitmap expectations: they appear unsupported.\n");
+		skip = true;
+	}
+
+	ret |= compare("entry", "≈", "1 bitmapped", entry, approx,
+		       bitmap1 - native, skip);
+	ret |= compare("entry", "≈", "2 bitmapped", entry, approx,
+		       bitmap2 - native, skip);
+	ret |= compare("native + entry + (per filter * 4)", "≈", "4 filters total",
+		       entry + (per_filter1 * 4) + native, approx, filter2,
+		       skip);
+
+	if (ret)
+		ksft_print_msg("Saw unexpected benchmark result. Try running again with more samples?\n");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index c5abe7fd7590..32e2d4df397b 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -1,43 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by the GPLv2 license.
  *
  * Test code for seccomp bpf.
  */
 
-#include <asm/siginfo.h>
-#define __have_siginfo_t 1
-#define __have_sigval_t 1
-#define __have_sigevent_t 1
+#define _GNU_SOURCE
+#include <sys/types.h>
+
+/*
+ * glibc 2.26 and later have SIGSYS in siginfo_t. Before that,
+ * we need to use the kernel's siginfo.h file and trick glibc
+ * into accepting it.
+ */
+#if !__GLIBC_PREREQ(2, 26)
+# include <asm/siginfo.h>
+# define __have_siginfo_t 1
+# define __have_sigval_t 1
+# define __have_sigevent_t 1
+#endif
 
 #include <errno.h>
 #include <linux/filter.h>
 #include <sys/prctl.h>
 #include <sys/ptrace.h>
+#include <sys/time.h>
 #include <sys/user.h>
 #include <linux/prctl.h>
 #include <linux/ptrace.h>
 #include <linux/seccomp.h>
-#include <poll.h>
 #include <pthread.h>
 #include <semaphore.h>
 #include <signal.h>
 #include <stddef.h>
 #include <stdbool.h>
 #include <string.h>
+#include <time.h>
+#include <limits.h>
 #include <linux/elf.h>
 #include <sys/uio.h>
+#include <sys/utsname.h>
+#include <sys/fcntl.h>
+#include <sys/mman.h>
+#include <sys/times.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <linux/kcmp.h>
+#include <sys/resource.h>
+#include <sys/capability.h>
+#include <linux/perf_event.h>
 
-#define _GNU_SOURCE
 #include <unistd.h>
 #include <sys/syscall.h>
+#include <poll.h>
+
+#include "kselftest_harness.h"
+#include "../clone3/clone3_selftests.h"
 
-#include "test_harness.h"
+/* Attempt to de-conflict with the selftests tree. */
+#ifndef SKIP
+#define SKIP(s, ...)	XFAIL(s, ##__VA_ARGS__)
+#endif
+
+#ifndef MIN
+#define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
+#endif
 
 #ifndef PR_SET_PTRACER
 # define PR_SET_PTRACER 0x59616d61
 #endif
 
+#ifndef noinline
+#define noinline __attribute__((noinline))
+#endif
+
+#ifndef __nocf_check
+#define __nocf_check __attribute__((nocf_check))
+#endif
+
+#ifndef __naked
+#define __naked __attribute__((__naked__))
+#endif
+
 #ifndef PR_SET_NO_NEW_PRIVS
 #define PR_SET_NO_NEW_PRIVS 38
 #define PR_GET_NO_NEW_PRIVS 39
@@ -63,17 +107,7 @@
 #define SECCOMP_MODE_FILTER 2
 #endif
 
-#ifndef SECCOMP_RET_KILL
-#define SECCOMP_RET_KILL        0x00000000U /* kill the task immediately */
-#define SECCOMP_RET_TRAP        0x00030000U /* disallow and force a SIGSYS */
-#define SECCOMP_RET_ERRNO       0x00050000U /* returns an errno */
-#define SECCOMP_RET_TRACE       0x7ff00000U /* pass to a tracer or disallow */
-#define SECCOMP_RET_ALLOW       0x7fff0000U /* allow */
-
-/* Masks for the return value sections. */
-#define SECCOMP_RET_ACTION      0x7fff0000U
-#define SECCOMP_RET_DATA        0x0000ffffU
-
+#ifndef SECCOMP_RET_ALLOW
 struct seccomp_data {
 	int nr;
 	__u32 arch;
@@ -82,12 +116,245 @@ struct seccomp_data {
 };
 #endif
 
+#ifndef SECCOMP_RET_KILL_PROCESS
+#define SECCOMP_RET_KILL_PROCESS 0x80000000U /* kill the process */
+#define SECCOMP_RET_KILL_THREAD	 0x00000000U /* kill the thread */
+#endif
+#ifndef SECCOMP_RET_KILL
+#define SECCOMP_RET_KILL	 SECCOMP_RET_KILL_THREAD
+#define SECCOMP_RET_TRAP	 0x00030000U /* disallow and force a SIGSYS */
+#define SECCOMP_RET_ERRNO	 0x00050000U /* returns an errno */
+#define SECCOMP_RET_TRACE	 0x7ff00000U /* pass to a tracer or disallow */
+#define SECCOMP_RET_ALLOW	 0x7fff0000U /* allow */
+#endif
+#ifndef SECCOMP_RET_LOG
+#define SECCOMP_RET_LOG		 0x7ffc0000U /* allow after logging */
+#endif
+
+#ifndef __NR_seccomp
+# if defined(__i386__)
+#  define __NR_seccomp 354
+# elif defined(__x86_64__)
+#  define __NR_seccomp 317
+# elif defined(__arm__)
+#  define __NR_seccomp 383
+# elif defined(__aarch64__)
+#  define __NR_seccomp 277
+# elif defined(__riscv)
+#  define __NR_seccomp 277
+# elif defined(__csky__)
+#  define __NR_seccomp 277
+# elif defined(__loongarch__)
+#  define __NR_seccomp 277
+# elif defined(__hppa__)
+#  define __NR_seccomp 338
+# elif defined(__powerpc__)
+#  define __NR_seccomp 358
+# elif defined(__s390__)
+#  define __NR_seccomp 348
+# elif defined(__xtensa__)
+#  define __NR_seccomp 337
+# elif defined(__sh__)
+#  define __NR_seccomp 372
+# elif defined(__mc68000__)
+#  define __NR_seccomp 380
+# else
+#  warning "seccomp syscall number unknown for this architecture"
+#  define __NR_seccomp 0xffff
+# endif
+#endif
+
+#ifndef __NR_uretprobe
+# if defined(__x86_64__)
+#  define __NR_uretprobe 335
+# endif
+#endif
+
+#ifndef SECCOMP_SET_MODE_STRICT
+#define SECCOMP_SET_MODE_STRICT 0
+#endif
+
+#ifndef SECCOMP_SET_MODE_FILTER
+#define SECCOMP_SET_MODE_FILTER 1
+#endif
+
+#ifndef SECCOMP_GET_ACTION_AVAIL
+#define SECCOMP_GET_ACTION_AVAIL 2
+#endif
+
+#ifndef SECCOMP_GET_NOTIF_SIZES
+#define SECCOMP_GET_NOTIF_SIZES 3
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_TSYNC
+#define SECCOMP_FILTER_FLAG_TSYNC (1UL << 0)
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_LOG
+#define SECCOMP_FILTER_FLAG_LOG (1UL << 1)
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_SPEC_ALLOW
+#define SECCOMP_FILTER_FLAG_SPEC_ALLOW (1UL << 2)
+#endif
+
+#ifndef PTRACE_SECCOMP_GET_METADATA
+#define PTRACE_SECCOMP_GET_METADATA	0x420d
+
+struct seccomp_metadata {
+	__u64 filter_off;       /* Input: which filter */
+	__u64 flags;             /* Output: filter's flags */
+};
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_NEW_LISTENER
+#define SECCOMP_FILTER_FLAG_NEW_LISTENER	(1UL << 3)
+#endif
+
+#ifndef SECCOMP_RET_USER_NOTIF
+#define SECCOMP_RET_USER_NOTIF 0x7fc00000U
+
+#define SECCOMP_IOC_MAGIC		'!'
+#define SECCOMP_IO(nr)			_IO(SECCOMP_IOC_MAGIC, nr)
+#define SECCOMP_IOR(nr, type)		_IOR(SECCOMP_IOC_MAGIC, nr, type)
+#define SECCOMP_IOW(nr, type)		_IOW(SECCOMP_IOC_MAGIC, nr, type)
+#define SECCOMP_IOWR(nr, type)		_IOWR(SECCOMP_IOC_MAGIC, nr, type)
+
+/* Flags for seccomp notification fd ioctl. */
+#define SECCOMP_IOCTL_NOTIF_RECV	SECCOMP_IOWR(0, struct seccomp_notif)
+#define SECCOMP_IOCTL_NOTIF_SEND	SECCOMP_IOWR(1,	\
+						struct seccomp_notif_resp)
+#define SECCOMP_IOCTL_NOTIF_ID_VALID	SECCOMP_IOW(2, __u64)
+
+struct seccomp_notif {
+	__u64 id;
+	__u32 pid;
+	__u32 flags;
+	struct seccomp_data data;
+};
+
+struct seccomp_notif_resp {
+	__u64 id;
+	__s64 val;
+	__s32 error;
+	__u32 flags;
+};
+
+struct seccomp_notif_sizes {
+	__u16 seccomp_notif;
+	__u16 seccomp_notif_resp;
+	__u16 seccomp_data;
+};
+#endif
+
+#ifndef SECCOMP_IOCTL_NOTIF_ADDFD
+/* On success, the return value is the remote process's added fd number */
+#define SECCOMP_IOCTL_NOTIF_ADDFD	SECCOMP_IOW(3,	\
+						struct seccomp_notif_addfd)
+
+/* valid flags for seccomp_notif_addfd */
+#define SECCOMP_ADDFD_FLAG_SETFD	(1UL << 0) /* Specify remote fd */
+
+struct seccomp_notif_addfd {
+	__u64 id;
+	__u32 flags;
+	__u32 srcfd;
+	__u32 newfd;
+	__u32 newfd_flags;
+};
+#endif
+
+#ifndef SECCOMP_ADDFD_FLAG_SEND
+#define SECCOMP_ADDFD_FLAG_SEND	(1UL << 1) /* Addfd and return it, atomically */
+#endif
+
+struct seccomp_notif_addfd_small {
+	__u64 id;
+	char weird[4];
+};
+#define SECCOMP_IOCTL_NOTIF_ADDFD_SMALL	\
+	SECCOMP_IOW(3, struct seccomp_notif_addfd_small)
+
+struct seccomp_notif_addfd_big {
+	union {
+		struct seccomp_notif_addfd addfd;
+		char buf[sizeof(struct seccomp_notif_addfd) + 8];
+	};
+};
+#define SECCOMP_IOCTL_NOTIF_ADDFD_BIG	\
+	SECCOMP_IOWR(3, struct seccomp_notif_addfd_big)
+
+#ifndef PTRACE_EVENTMSG_SYSCALL_ENTRY
+#define PTRACE_EVENTMSG_SYSCALL_ENTRY	1
+#define PTRACE_EVENTMSG_SYSCALL_EXIT	2
+#endif
+
+#ifndef SECCOMP_USER_NOTIF_FLAG_CONTINUE
+#define SECCOMP_USER_NOTIF_FLAG_CONTINUE 0x00000001
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_TSYNC_ESRCH
+#define SECCOMP_FILTER_FLAG_TSYNC_ESRCH (1UL << 4)
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV
+#define SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV (1UL << 5)
+#endif
+
+#ifndef seccomp
+int seccomp(unsigned int op, unsigned int flags, void *args)
+{
+	errno = 0;
+	return syscall(__NR_seccomp, op, flags, args);
+}
+#endif
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
 #define syscall_arg(_n) (offsetof(struct seccomp_data, args[_n]))
+#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define syscall_arg(_n) (offsetof(struct seccomp_data, args[_n]) + sizeof(__u32))
+#else
+#error "wut? Unknown __BYTE_ORDER__?!"
+#endif
 
 #define SIBLING_EXIT_UNKILLED	0xbadbeef
 #define SIBLING_EXIT_FAILURE	0xbadface
 #define SIBLING_EXIT_NEWPRIVS	0xbadfeed
 
+static int __filecmp(pid_t pid1, pid_t pid2, int fd1, int fd2)
+{
+#ifdef __NR_kcmp
+	errno = 0;
+	return syscall(__NR_kcmp, pid1, pid2, KCMP_FILE, fd1, fd2);
+#else
+	errno = ENOSYS;
+	return -1;
+#endif
+}
+
+/* Have TH_LOG report actual location filecmp() is used. */
+#define filecmp(pid1, pid2, fd1, fd2)	({		\
+	int _ret;					\
+							\
+	_ret = __filecmp(pid1, pid2, fd1, fd2);		\
+	if (_ret != 0) {				\
+		if (_ret < 0 && errno == ENOSYS) {	\
+			TH_LOG("kcmp() syscall missing (test is less accurate)");\
+			_ret = 0;			\
+		}					\
+	}						\
+	_ret; })
+
+TEST(kcmp)
+{
+	int ret;
+
+	ret = __filecmp(getpid(), getpid(), 1, 1);
+	EXPECT_EQ(ret, 0);
+	if (ret != 0 && errno == ENOSYS)
+		SKIP(return, "Kernel does not support kcmp() (missing CONFIG_KCMP?)");
+}
+
 TEST(mode_strict_support)
 {
 	long ret;
@@ -96,7 +363,7 @@ TEST(mode_strict_support)
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Kernel does not support CONFIG_SECCOMP");
 	}
-	syscall(__NR_exit, 1);
+	syscall(__NR_exit, 0);
 }
 
 TEST_SIGNAL(mode_strict_cannot_call_prctl, SIGKILL)
@@ -125,7 +392,7 @@ TEST(no_new_privs_support)
 	}
 }
 
-/* Tests kernel support by checking for a copy_from_user() fault on * NULL. */
+/* Tests kernel support by checking for a copy_from_user() fault on NULL. */
 TEST(mode_filter_support)
 {
 	long ret;
@@ -151,6 +418,8 @@ TEST(mode_filter_without_nnp)
 		.filter = filter,
 	};
 	long ret;
+	cap_t cap = cap_get_proc();
+	cap_flag_value_t is_cap_sys_admin = 0;
 
 	ret = prctl(PR_GET_NO_NEW_PRIVS, 0, NULL, 0, 0);
 	ASSERT_LE(0, ret) {
@@ -159,8 +428,8 @@ TEST(mode_filter_without_nnp)
 	errno = 0;
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
 	/* Succeeds with CAP_SYS_ADMIN, fails without */
-	/* TODO(wad) check caps not euid */
-	if (geteuid()) {
+	cap_get_flag(cap, CAP_SYS_ADMIN, CAP_EFFECTIVE, &is_cap_sys_admin);
+	if (!is_cap_sys_admin) {
 		EXPECT_EQ(-1, ret);
 		EXPECT_EQ(EACCES, errno);
 	} else {
@@ -331,6 +600,28 @@ TEST(empty_prog)
 	EXPECT_EQ(EINVAL, errno);
 }
 
+TEST(log_all)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_LOG),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ASSERT_EQ(0, ret);
+
+	/* getppid() should succeed and be logged (no check for logging) */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+}
+
 TEST_SIGNAL(unknown_ret_is_kill_inside, SIGSYS)
 {
 	struct sock_filter filter[] = {
@@ -421,14 +712,16 @@ TEST_SIGNAL(KILL_one, SIGSYS)
 
 TEST_SIGNAL(KILL_one_arg_one, SIGSYS)
 {
+	void *fatal_address;
 	struct sock_filter filter[] = {
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
 			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_times, 1, 0),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 		/* Only both with lower 32-bit for now. */
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS, syscall_arg(0)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, 0x0C0FFEE, 0, 1),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K,
+			(unsigned long)&fatal_address, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 	};
@@ -438,7 +731,8 @@ TEST_SIGNAL(KILL_one_arg_one, SIGSYS)
 	};
 	long ret;
 	pid_t parent = getppid();
-	pid_t pid = getpid();
+	struct tms timebuf;
+	clock_t clock = times(&timebuf);
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
@@ -447,17 +741,22 @@ TEST_SIGNAL(KILL_one_arg_one, SIGSYS)
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
-	EXPECT_EQ(pid, syscall(__NR_getpid));
-	/* getpid() should never return. */
-	EXPECT_EQ(0, syscall(__NR_getpid, 0x0C0FFEE));
+	EXPECT_LE(clock, syscall(__NR_times, &timebuf));
+	/* times() should never return. */
+	EXPECT_EQ(0, syscall(__NR_times, &fatal_address));
 }
 
 TEST_SIGNAL(KILL_one_arg_six, SIGSYS)
 {
+#ifndef __NR_mmap2
+	int sysno = __NR_mmap;
+#else
+	int sysno = __NR_mmap2;
+#endif
 	struct sock_filter filter[] = {
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
 			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, sysno, 1, 0),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 		/* Only both with lower 32-bit for now. */
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS, syscall_arg(5)),
@@ -471,7 +770,11 @@ TEST_SIGNAL(KILL_one_arg_six, SIGSYS)
 	};
 	long ret;
 	pid_t parent = getppid();
-	pid_t pid = getpid();
+	int fd;
+	void *map1, *map2;
+	int page_size = sysconf(_SC_PAGESIZE);
+
+	ASSERT_LT(0, page_size);
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
@@ -479,10 +782,164 @@ TEST_SIGNAL(KILL_one_arg_six, SIGSYS)
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
 	ASSERT_EQ(0, ret);
 
+	fd = open("/dev/zero", O_RDONLY);
+	ASSERT_NE(-1, fd);
+
 	EXPECT_EQ(parent, syscall(__NR_getppid));
-	EXPECT_EQ(pid, syscall(__NR_getpid));
-	/* getpid() should never return. */
-	EXPECT_EQ(0, syscall(__NR_getpid, 1, 2, 3, 4, 5, 0x0C0FFEE));
+	map1 = (void *)syscall(sysno,
+		NULL, page_size, PROT_READ, MAP_PRIVATE, fd, page_size);
+	EXPECT_NE(MAP_FAILED, map1);
+	/* mmap2() should never return. */
+	map2 = (void *)syscall(sysno,
+		 NULL, page_size, PROT_READ, MAP_PRIVATE, fd, 0x0C0FFEE);
+	EXPECT_EQ(MAP_FAILED, map2);
+
+	/* The test failed, so clean up the resources. */
+	munmap(map1, page_size);
+	munmap(map2, page_size);
+	close(fd);
+}
+
+/* This is a thread task to die via seccomp filter violation. */
+void *kill_thread(void *data)
+{
+	bool die = (bool)data;
+
+	if (die) {
+		syscall(__NR_getpid);
+		return (void *)SIBLING_EXIT_FAILURE;
+	}
+
+	return (void *)SIBLING_EXIT_UNKILLED;
+}
+
+enum kill_t {
+	KILL_THREAD,
+	KILL_PROCESS,
+	RET_UNKNOWN
+};
+
+/* Prepare a thread that will kill itself or both of us. */
+void kill_thread_or_group(struct __test_metadata *_metadata,
+			  enum kill_t kill_how)
+{
+	pthread_t thread;
+	void *status;
+	/* Kill only when calling __NR_getpid. */
+	struct sock_filter filter_thread[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL_THREAD),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog_thread = {
+		.len = (unsigned short)ARRAY_SIZE(filter_thread),
+		.filter = filter_thread,
+	};
+	int kill = kill_how == KILL_PROCESS ? SECCOMP_RET_KILL_PROCESS : 0xAAAAAAAA;
+	struct sock_filter filter_process[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, kill),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog_process = {
+		.len = (unsigned short)ARRAY_SIZE(filter_process),
+		.filter = filter_process,
+	};
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0,
+			     kill_how == KILL_THREAD ? &prog_thread
+						     : &prog_process));
+
+	/*
+	 * Add the KILL_THREAD rule again to make sure that the KILL_PROCESS
+	 * flag cannot be downgraded by a new filter.
+	 */
+	if (kill_how == KILL_PROCESS)
+		ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog_thread));
+
+	/* Start a thread that will exit immediately. */
+	ASSERT_EQ(0, pthread_create(&thread, NULL, kill_thread, (void *)false));
+	ASSERT_EQ(0, pthread_join(thread, &status));
+	ASSERT_EQ(SIBLING_EXIT_UNKILLED, (unsigned long)status);
+
+	/* Start a thread that will die immediately. */
+	ASSERT_EQ(0, pthread_create(&thread, NULL, kill_thread, (void *)true));
+	ASSERT_EQ(0, pthread_join(thread, &status));
+	ASSERT_NE(SIBLING_EXIT_FAILURE, (unsigned long)status);
+
+	/*
+	 * If we get here, only the spawned thread died. Let the parent know
+	 * the whole process didn't die (i.e. this thread, the spawner,
+	 * stayed running).
+	 */
+	exit(42);
+}
+
+TEST(KILL_thread)
+{
+	int status;
+	pid_t child_pid;
+
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		kill_thread_or_group(_metadata, KILL_THREAD);
+		_exit(38);
+	}
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
+
+	/* If only the thread was killed, we'll see exit 42. */
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(42, WEXITSTATUS(status));
+}
+
+TEST(KILL_process)
+{
+	int status;
+	pid_t child_pid;
+
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		kill_thread_or_group(_metadata, KILL_PROCESS);
+		_exit(38);
+	}
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
+
+	/* If the entire process was killed, we'll see SIGSYS. */
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(SIGSYS, WTERMSIG(status));
+}
+
+TEST(KILL_unknown)
+{
+	int status;
+	pid_t child_pid;
+
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		kill_thread_or_group(_metadata, RET_UNKNOWN);
+		_exit(38);
+	}
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
+
+	/* If the entire process was killed, we'll see SIGSYS. */
+	EXPECT_TRUE(WIFSIGNALED(status)) {
+		TH_LOG("Unknown SECCOMP_RET is only killing the thread?");
+	}
+	ASSERT_EQ(SIGSYS, WTERMSIG(status));
 }
 
 /* TODO(wad) add 64-bit versus 32-bit arg tests. */
@@ -506,88 +963,109 @@ TEST(arg_out_of_range)
 	EXPECT_EQ(EINVAL, errno);
 }
 
+#define ERRNO_FILTER(name, errno)					\
+	struct sock_filter _read_filter_##name[] = {			\
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,				\
+			offsetof(struct seccomp_data, nr)),		\
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),	\
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | errno),	\
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),		\
+	};								\
+	struct sock_fprog prog_##name = {				\
+		.len = (unsigned short)ARRAY_SIZE(_read_filter_##name),	\
+		.filter = _read_filter_##name,				\
+	}
+
+/* Make sure basic errno values are correctly passed through a filter. */
 TEST(ERRNO_valid)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | E2BIG),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(valid, E2BIG);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_valid);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
-	EXPECT_EQ(-1, read(0, NULL, 0));
+	EXPECT_EQ(-1, read(-1, NULL, 0));
 	EXPECT_EQ(E2BIG, errno);
 }
 
+/* Make sure an errno of zero is correctly handled by the arch code. */
 TEST(ERRNO_zero)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | 0),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(zero, 0);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_zero);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
 	/* "errno" of 0 is ok. */
-	EXPECT_EQ(0, read(0, NULL, 0));
+	EXPECT_EQ(0, read(-1, NULL, 0));
 }
 
+/*
+ * The SECCOMP_RET_DATA mask is 16 bits wide, but errno is smaller.
+ * This tests that the errno value gets capped correctly, fixed by
+ * 580c57f10768 ("seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO").
+ */
 TEST(ERRNO_capped)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | 4096),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(capped, 4096);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_capped);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
-	EXPECT_EQ(-1, read(0, NULL, 0));
+	EXPECT_EQ(-1, read(-1, NULL, 0));
 	EXPECT_EQ(4095, errno);
 }
 
-FIXTURE_DATA(TRAP) {
+/*
+ * Filters are processed in reverse order: last applied is executed first.
+ * Since only the SECCOMP_RET_ACTION mask is tested for return values, the
+ * SECCOMP_RET_DATA mask results will follow the most recently applied
+ * matching filter return (and not the lowest or highest value).
+ */
+TEST(ERRNO_order)
+{
+	ERRNO_FILTER(first,  11);
+	ERRNO_FILTER(second, 13);
+	ERRNO_FILTER(third,  12);
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_first);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_second);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_third);
+	ASSERT_EQ(0, ret);
+
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	EXPECT_EQ(-1, read(-1, NULL, 0));
+	EXPECT_EQ(12, errno);
+}
+
+FIXTURE(TRAP) {
 	struct sock_fprog prog;
 };
 
@@ -641,7 +1119,7 @@ TEST_F_SIGNAL(TRAP, ign, SIGSYS)
 	syscall(__NR_getpid);
 }
 
-static struct siginfo TRAP_info;
+static siginfo_t TRAP_info;
 static volatile int TRAP_nr;
 static void TRAP_action(int nr, siginfo_t *info, void *void_context)
 {
@@ -698,8 +1176,9 @@ TEST_F(TRAP, handler)
 	EXPECT_NE(0, (unsigned long)sigsys->_call_addr);
 }
 
-FIXTURE_DATA(precedence) {
+FIXTURE(precedence) {
 	struct sock_fprog allow;
+	struct sock_fprog log;
 	struct sock_fprog trace;
 	struct sock_fprog error;
 	struct sock_fprog trap;
@@ -711,6 +1190,13 @@ FIXTURE_SETUP(precedence)
 	struct sock_filter allow_insns[] = {
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 	};
+	struct sock_filter log_insns[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_LOG),
+	};
 	struct sock_filter trace_insns[] = {
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
 			offsetof(struct seccomp_data, nr)),
@@ -747,6 +1233,7 @@ FIXTURE_SETUP(precedence)
 	memcpy(self->_x.filter, &_x##_insns, sizeof(_x##_insns)); \
 	self->_x.len = (unsigned short)ARRAY_SIZE(_x##_insns)
 	FILTER_ALLOC(allow);
+	FILTER_ALLOC(log);
 	FILTER_ALLOC(trace);
 	FILTER_ALLOC(error);
 	FILTER_ALLOC(trap);
@@ -757,6 +1244,7 @@ FIXTURE_TEARDOWN(precedence)
 {
 #define FILTER_FREE(_x) if (self->_x.filter) free(self->_x.filter)
 	FILTER_FREE(allow);
+	FILTER_FREE(log);
 	FILTER_FREE(trace);
 	FILTER_FREE(error);
 	FILTER_FREE(trap);
@@ -774,6 +1262,8 @@ TEST_F(precedence, allow_ok)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -798,6 +1288,8 @@ TEST_F_SIGNAL(precedence, kill_is_highest, SIGSYS)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -829,6 +1321,8 @@ TEST_F_SIGNAL(precedence, kill_is_highest_in_any_order, SIGSYS)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trap);
@@ -850,6 +1344,8 @@ TEST_F_SIGNAL(precedence, trap_is_second, SIGSYS)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -875,6 +1371,8 @@ TEST_F_SIGNAL(precedence, trap_is_second_in_any_order, SIGSYS)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trap);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -896,6 +1394,8 @@ TEST_F(precedence, errno_is_third)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -914,6 +1414,8 @@ TEST_F(precedence, errno_is_third_in_any_order)
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
@@ -936,6 +1438,8 @@ TEST_F(precedence, trace_is_fourth)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	/* Should work just fine. */
@@ -957,12 +1461,54 @@ TEST_F(precedence, trace_is_fourth_in_any_order)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	/* Should work just fine. */
 	EXPECT_EQ(parent, syscall(__NR_getppid));
 	/* No ptracer */
 	EXPECT_EQ(-1, syscall(__NR_getpid));
 }
 
+TEST_F(precedence, log_is_fifth)
+{
+	pid_t mypid, parent;
+	long ret;
+
+	mypid = getpid();
+	parent = getppid();
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
+	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
+	/* Should work just fine. */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* Should also work just fine */
+	EXPECT_EQ(mypid, syscall(__NR_getpid));
+}
+
+TEST_F(precedence, log_is_fifth_in_any_order)
+{
+	pid_t mypid, parent;
+	long ret;
+
+	mypid = getpid();
+	parent = getppid();
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
+	ASSERT_EQ(0, ret);
+	/* Should work just fine. */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* Should also work just fine */
+	EXPECT_EQ(mypid, syscall(__NR_getpid));
+}
+
 #ifndef PTRACE_O_TRACESECCOMP
 #define PTRACE_O_TRACESECCOMP	0x00000080
 #endif
@@ -976,7 +1522,7 @@ TEST_F(precedence, trace_is_fourth_in_any_order)
 #define PTRACE_EVENT_SECCOMP 7
 #endif
 
-#define IS_SECCOMP_EVENT(status) ((status >> 16) == PTRACE_EVENT_SECCOMP)
+#define PTRACE_EVENT_MASK(status) ((status) >> 16)
 bool tracer_running;
 void tracer_stop(int sig)
 {
@@ -986,8 +1532,8 @@ void tracer_stop(int sig)
 typedef void tracer_func_t(struct __test_metadata *_metadata,
 			   pid_t tracee, int status, void *args);
 
-void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
-	    tracer_func_t tracer_func, void *args)
+void start_tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
+	    tracer_func_t tracer_func, void *args, bool ptrace_syscall)
 {
 	int ret = -1;
 	struct sigaction action = {
@@ -1007,12 +1553,16 @@ void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
 	/* Wait for attach stop */
 	wait(NULL);
 
-	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, PTRACE_O_TRACESECCOMP);
+	ret = ptrace(PTRACE_SETOPTIONS, tracee, NULL, ptrace_syscall ?
+						      PTRACE_O_TRACESYSGOOD :
+						      PTRACE_O_TRACESECCOMP);
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Failed to set PTRACE_O_TRACESECCOMP");
 		kill(tracee, SIGKILL);
 	}
-	ptrace(PTRACE_CONT, tracee, NULL, 0);
+	ret = ptrace(ptrace_syscall ? PTRACE_SYSCALL : PTRACE_CONT,
+		     tracee, NULL, 0);
+	ASSERT_EQ(0, ret);
 
 	/* Unblock the tracee */
 	ASSERT_EQ(1, write(fd, "A", 1));
@@ -1024,27 +1574,38 @@ void tracer(struct __test_metadata *_metadata, int fd, pid_t tracee,
 
 		if (wait(&status) != tracee)
 			continue;
-		if (WIFSIGNALED(status) || WIFEXITED(status))
-			/* Child is dead. Time to go. */
+
+		if (WIFSIGNALED(status)) {
+			/* Child caught a fatal signal. */
+			return;
+		}
+		if (WIFEXITED(status)) {
+			/* Child exited with code. */
 			return;
+		}
 
-		/* Make sure this is a seccomp event. */
-		ASSERT_EQ(true, IS_SECCOMP_EVENT(status));
+		/* Check if we got an expected event. */
+		ASSERT_EQ(WIFCONTINUED(status), false);
+		ASSERT_EQ(WIFSTOPPED(status), true);
+		ASSERT_EQ(WSTOPSIG(status) & SIGTRAP, SIGTRAP) {
+			TH_LOG("Unexpected WSTOPSIG: %d", WSTOPSIG(status));
+		}
 
 		tracer_func(_metadata, tracee, status, args);
 
-		ret = ptrace(PTRACE_CONT, tracee, NULL, NULL);
+		ret = ptrace(ptrace_syscall ? PTRACE_SYSCALL : PTRACE_CONT,
+			     tracee, NULL, 0);
 		ASSERT_EQ(0, ret);
 	}
 	/* Directly report the status of our test harness results. */
-	syscall(__NR_exit, _metadata->passed ? EXIT_SUCCESS : EXIT_FAILURE);
+	syscall(__NR_exit, _metadata->exit_code);
 }
 
 /* Common tracer setup/teardown functions. */
 void cont_handler(int num)
 { }
 pid_t setup_trace_fixture(struct __test_metadata *_metadata,
-			  tracer_func_t func, void *args)
+			  tracer_func_t func, void *args, bool ptrace_syscall)
 {
 	char sync;
 	int pipefd[2];
@@ -1060,7 +1621,8 @@ pid_t setup_trace_fixture(struct __test_metadata *_metadata,
 	signal(SIGALRM, cont_handler);
 	if (tracer_pid == 0) {
 		close(pipefd[0]);
-		tracer(_metadata, pipefd[1], tracee, func, args);
+		start_tracer(_metadata, pipefd[1], tracee, func, args,
+			     ptrace_syscall);
 		syscall(__NR_exit, 0);
 	}
 	close(pipefd[1]);
@@ -1070,19 +1632,14 @@ pid_t setup_trace_fixture(struct __test_metadata *_metadata,
 
 	return tracer_pid;
 }
+
 void teardown_trace_fixture(struct __test_metadata *_metadata,
 			    pid_t tracer)
 {
 	if (tracer) {
 		int status;
-		/*
-		 * Extract the exit code from the other process and
-		 * adopt it for ourselves in case its asserts failed.
-		 */
 		ASSERT_EQ(0, kill(tracer, SIGUSR1));
 		ASSERT_EQ(tracer, waitpid(tracer, &status, 0));
-		if (WEXITSTATUS(status))
-			_metadata->passed = 0;
 	}
 }
 
@@ -1113,7 +1670,7 @@ void tracer_poke(struct __test_metadata *_metadata, pid_t tracee, int status,
 	EXPECT_EQ(0, ret);
 }
 
-FIXTURE_DATA(TRACE_poke) {
+FIXTURE(TRACE_poke) {
 	struct sock_fprog prog;
 	pid_t tracer;
 	long poked;
@@ -1142,7 +1699,7 @@ FIXTURE_SETUP(TRACE_poke)
 
 	/* Launch tracer. */
 	self->tracer = setup_trace_fixture(_metadata, tracer_poke,
-					   &self->tracer_args);
+					   &self->tracer_args, false);
 }
 
 FIXTURE_TEARDOWN(TRACE_poke)
@@ -1184,103 +1741,302 @@ TEST_F(TRACE_poke, getpid_runs_normally)
 }
 
 #if defined(__x86_64__)
-# define ARCH_REGS	struct user_regs_struct
-# define SYSCALL_NUM	orig_rax
-# define SYSCALL_RET	rax
+# define ARCH_REGS		struct user_regs_struct
+# define SYSCALL_NUM(_regs)	(_regs).orig_rax
+# define SYSCALL_RET(_regs)	(_regs).rax
 #elif defined(__i386__)
-# define ARCH_REGS	struct user_regs_struct
-# define SYSCALL_NUM	orig_eax
-# define SYSCALL_RET	eax
+# define ARCH_REGS		struct user_regs_struct
+# define SYSCALL_NUM(_regs)	(_regs).orig_eax
+# define SYSCALL_RET(_regs)	(_regs).eax
 #elif defined(__arm__)
-# define ARCH_REGS	struct pt_regs
-# define SYSCALL_NUM	ARM_r7
-# define SYSCALL_RET	ARM_r0
+# define ARCH_REGS		struct pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).ARM_r7
+# ifndef PTRACE_SET_SYSCALL
+#  define PTRACE_SET_SYSCALL   23
+# endif
+# define SYSCALL_NUM_SET(_regs, _nr)	\
+		EXPECT_EQ(0, ptrace(PTRACE_SET_SYSCALL, tracee, NULL, _nr))
+# define SYSCALL_RET(_regs)	(_regs).ARM_r0
 #elif defined(__aarch64__)
-# define ARCH_REGS	struct user_pt_regs
-# define SYSCALL_NUM	regs[8]
-# define SYSCALL_RET	regs[0]
+# define ARCH_REGS		struct user_pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).regs[8]
+# ifndef NT_ARM_SYSTEM_CALL
+#  define NT_ARM_SYSTEM_CALL 0x404
+# endif
+# define SYSCALL_NUM_SET(_regs, _nr)				\
+	do {							\
+		struct iovec __v;				\
+		typeof(_nr) __nr = (_nr);			\
+		__v.iov_base = &__nr;				\
+		__v.iov_len = sizeof(__nr);			\
+		EXPECT_EQ(0, ptrace(PTRACE_SETREGSET, tracee,	\
+				    NT_ARM_SYSTEM_CALL, &__v));	\
+	} while (0)
+# define SYSCALL_RET(_regs)	(_regs).regs[0]
+#elif defined(__loongarch__)
+# define ARCH_REGS		struct user_pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).regs[11]
+# define SYSCALL_RET(_regs)	(_regs).regs[4]
+#elif defined(__riscv) && __riscv_xlen == 64
+# define ARCH_REGS		struct user_regs_struct
+# define SYSCALL_NUM(_regs)	(_regs).a7
+# define SYSCALL_RET(_regs)	(_regs).a0
+#elif defined(__csky__)
+# define ARCH_REGS		struct pt_regs
+#  if defined(__CSKYABIV2__)
+#   define SYSCALL_NUM(_regs)	(_regs).regs[3]
+#  else
+#   define SYSCALL_NUM(_regs)	(_regs).regs[9]
+#  endif
+# define SYSCALL_RET(_regs)	(_regs).a0
+#elif defined(__hppa__)
+# define ARCH_REGS		struct user_regs_struct
+# define SYSCALL_NUM(_regs)	(_regs).gr[20]
+# define SYSCALL_RET(_regs)	(_regs).gr[28]
+#elif defined(__powerpc__)
+# define ARCH_REGS		struct pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).gpr[0]
+# define SYSCALL_RET(_regs)	(_regs).gpr[3]
+# define SYSCALL_RET_SET(_regs, _val)				\
+	do {							\
+		typeof(_val) _result = (_val);			\
+		if ((_regs.trap & 0xfff0) == 0x3000) {		\
+			/*					\
+			 * scv 0 system call uses -ve result	\
+			 * for error, so no need to adjust.	\
+			 */					\
+			SYSCALL_RET(_regs) = _result;		\
+		} else {					\
+			/*					\
+			 * A syscall error is signaled by the	\
+			 * CR0 SO bit and the code is stored as	\
+			 * a positive value.			\
+			 */					\
+			if (_result < 0) {			\
+				SYSCALL_RET(_regs) = -_result;	\
+				(_regs).ccr |= 0x10000000;	\
+			} else {				\
+				SYSCALL_RET(_regs) = _result;	\
+				(_regs).ccr &= ~0x10000000;	\
+			}					\
+		}						\
+	} while (0)
+# define SYSCALL_RET_SET_ON_PTRACE_EXIT
+#elif defined(__s390__)
+# define ARCH_REGS		s390_regs
+# define SYSCALL_NUM(_regs)	(_regs).gprs[2]
+# define SYSCALL_RET_SET(_regs, _val)			\
+		TH_LOG("Can't modify syscall return on this architecture")
+#elif defined(__mips__)
+# include <asm/unistd_nr_n32.h>
+# include <asm/unistd_nr_n64.h>
+# include <asm/unistd_nr_o32.h>
+# define ARCH_REGS		struct pt_regs
+# define SYSCALL_NUM(_regs)				\
+	({						\
+		typeof((_regs).regs[2]) _nr;		\
+		if ((_regs).regs[2] == __NR_O32_Linux)	\
+			_nr = (_regs).regs[4];		\
+		else					\
+			_nr = (_regs).regs[2];		\
+		_nr;					\
+	})
+# define SYSCALL_NUM_SET(_regs, _nr)			\
+	do {						\
+		if ((_regs).regs[2] == __NR_O32_Linux)	\
+			(_regs).regs[4] = _nr;		\
+		else					\
+			(_regs).regs[2] = _nr;		\
+	} while (0)
+# define SYSCALL_RET_SET(_regs, _val)			\
+		TH_LOG("Can't modify syscall return on this architecture")
+#elif defined(__xtensa__)
+# define ARCH_REGS		struct user_pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).syscall
+/*
+ * On xtensa syscall return value is in the register
+ * a2 of the current window which is not fixed.
+ */
+#define SYSCALL_RET(_regs)	(_regs).a[(_regs).windowbase * 4 + 2]
+#elif defined(__sh__)
+# define ARCH_REGS		struct pt_regs
+# define SYSCALL_NUM(_regs)	(_regs).regs[3]
+# define SYSCALL_RET(_regs)	(_regs).regs[0]
+#elif defined(__mc68000__)
+# define ARCH_REGS		struct user_regs_struct
+# define SYSCALL_NUM(_regs)	(_regs).orig_d0
+# define SYSCALL_RET(_regs)	(_regs).d0
 #else
 # error "Do not know how to find your architecture's registers and syscalls"
 #endif
 
+/*
+ * Most architectures can change the syscall by just updating the
+ * associated register. This is the default if not defined above.
+ */
+#ifndef SYSCALL_NUM_SET
+# define SYSCALL_NUM_SET(_regs, _nr)		\
+	do {					\
+		SYSCALL_NUM(_regs) = (_nr);	\
+	} while (0)
+#endif
+/*
+ * Most architectures can change the syscall return value by just
+ * writing to the SYSCALL_RET register. This is the default if not
+ * defined above. If an architecture cannot set the return value
+ * (for example when the syscall and return value register is
+ * shared), report it with TH_LOG() in an arch-specific definition
+ * of SYSCALL_RET_SET() above, and leave SYSCALL_RET undefined.
+ */
+#if !defined(SYSCALL_RET) && !defined(SYSCALL_RET_SET)
+# error "One of SYSCALL_RET or SYSCALL_RET_SET is needed for this arch"
+#endif
+#ifndef SYSCALL_RET_SET
+# define SYSCALL_RET_SET(_regs, _val)		\
+	do {					\
+		SYSCALL_RET(_regs) = (_val);	\
+	} while (0)
+#endif
+
+/* When the syscall return can't be changed, stub out the tests for it. */
+#ifndef SYSCALL_RET
+# define EXPECT_SYSCALL_RETURN(val, action)	EXPECT_EQ(-1, action)
+#else
+# define EXPECT_SYSCALL_RETURN(val, action)		\
+	do {						\
+		errno = 0;				\
+		if (val < 0) {				\
+			EXPECT_EQ(-1, action);		\
+			EXPECT_EQ(-(val), errno);	\
+		} else {				\
+			EXPECT_EQ(val, action);		\
+		}					\
+	} while (0)
+#endif
+
+/*
+ * Some architectures (e.g. powerpc) can only set syscall
+ * return values on syscall exit during ptrace.
+ */
+const bool ptrace_entry_set_syscall_nr = true;
+const bool ptrace_entry_set_syscall_ret =
+#ifndef SYSCALL_RET_SET_ON_PTRACE_EXIT
+	true;
+#else
+	false;
+#endif
+
+/*
+ * Use PTRACE_GETREGS and PTRACE_SETREGS when available. This is useful for
+ * architectures without HAVE_ARCH_TRACEHOOK (e.g. User-mode Linux).
+ */
+#if defined(__x86_64__) || defined(__i386__) || defined(__mips__) || defined(__mc68000__)
+# define ARCH_GETREGS(_regs)	ptrace(PTRACE_GETREGS, tracee, 0, &(_regs))
+# define ARCH_SETREGS(_regs)	ptrace(PTRACE_SETREGS, tracee, 0, &(_regs))
+#else
+# define ARCH_GETREGS(_regs)	({					\
+		struct iovec __v;					\
+		__v.iov_base = &(_regs);				\
+		__v.iov_len = sizeof(_regs);				\
+		ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &__v);	\
+	})
+# define ARCH_SETREGS(_regs)	({					\
+		struct iovec __v;					\
+		__v.iov_base = &(_regs);				\
+		__v.iov_len = sizeof(_regs);				\
+		ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &__v);	\
+	})
+#endif
+
 /* Architecture-specific syscall fetching routine. */
 int get_syscall(struct __test_metadata *_metadata, pid_t tracee)
 {
-	struct iovec iov;
 	ARCH_REGS regs;
 
-	iov.iov_base = &regs;
-	iov.iov_len = sizeof(regs);
-	EXPECT_EQ(0, ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov)) {
-		TH_LOG("PTRACE_GETREGSET failed");
+	EXPECT_EQ(0, ARCH_GETREGS(regs)) {
 		return -1;
 	}
 
-	return regs.SYSCALL_NUM;
+	return SYSCALL_NUM(regs);
 }
 
 /* Architecture-specific syscall changing routine. */
-void change_syscall(struct __test_metadata *_metadata,
-		    pid_t tracee, int syscall)
+void __change_syscall(struct __test_metadata *_metadata,
+		    pid_t tracee, long *syscall, long *ret)
 {
-	struct iovec iov;
-	int ret;
-	ARCH_REGS regs;
+	ARCH_REGS orig, regs;
 
-	iov.iov_base = &regs;
-	iov.iov_len = sizeof(regs);
-	ret = ptrace(PTRACE_GETREGSET, tracee, NT_PRSTATUS, &iov);
-	EXPECT_EQ(0, ret);
+	/* Do not get/set registers if we have nothing to do. */
+	if (!syscall && !ret)
+		return;
 
-#if defined(__x86_64__) || defined(__i386__) || defined(__aarch64__)
-	{
-		regs.SYSCALL_NUM = syscall;
+	EXPECT_EQ(0, ARCH_GETREGS(regs)) {
+		return;
 	}
+	orig = regs;
 
-#elif defined(__arm__)
-# ifndef PTRACE_SET_SYSCALL
-#  define PTRACE_SET_SYSCALL   23
-# endif
-	{
-		ret = ptrace(PTRACE_SET_SYSCALL, tracee, NULL, syscall);
-		EXPECT_EQ(0, ret);
-	}
+	if (syscall)
+		SYSCALL_NUM_SET(regs, *syscall);
 
-#else
-	ASSERT_EQ(1, 0) {
-		TH_LOG("How is the syscall changed on this architecture?");
-	}
-#endif
+	if (ret)
+		SYSCALL_RET_SET(regs, *ret);
 
-	/* If syscall is skipped, change return value. */
-	if (syscall == -1)
-		regs.SYSCALL_RET = 1;
+	/* Flush any register changes made. */
+	if (memcmp(&orig, &regs, sizeof(orig)) != 0)
+		EXPECT_EQ(0, ARCH_SETREGS(regs));
+}
 
-	ret = ptrace(PTRACE_SETREGSET, tracee, NT_PRSTATUS, &iov);
-	EXPECT_EQ(0, ret);
+/* Change only syscall number. */
+void change_syscall_nr(struct __test_metadata *_metadata,
+		       pid_t tracee, long syscall)
+{
+	__change_syscall(_metadata, tracee, &syscall, NULL);
 }
 
-void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,
+/* Change syscall return value (and set syscall number to -1). */
+void change_syscall_ret(struct __test_metadata *_metadata,
+			pid_t tracee, long ret)
+{
+	long syscall = -1;
+
+	__change_syscall(_metadata, tracee, &syscall, &ret);
+}
+
+void tracer_seccomp(struct __test_metadata *_metadata, pid_t tracee,
 		    int status, void *args)
 {
 	int ret;
 	unsigned long msg;
 
+	EXPECT_EQ(PTRACE_EVENT_MASK(status), PTRACE_EVENT_SECCOMP) {
+		TH_LOG("Unexpected ptrace event: %d", PTRACE_EVENT_MASK(status));
+		return;
+	}
+
 	/* Make sure we got the right message. */
 	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);
 	EXPECT_EQ(0, ret);
 
+	/* Validate and take action on expected syscalls. */
 	switch (msg) {
 	case 0x1002:
 		/* change getpid to getppid. */
-		change_syscall(_metadata, tracee, __NR_getppid);
+		EXPECT_EQ(__NR_getpid, get_syscall(_metadata, tracee));
+		change_syscall_nr(_metadata, tracee, __NR_getppid);
 		break;
 	case 0x1003:
-		/* skip gettid. */
-		change_syscall(_metadata, tracee, -1);
+		/* skip gettid with valid return code. */
+		EXPECT_EQ(__NR_gettid, get_syscall(_metadata, tracee));
+		change_syscall_ret(_metadata, tracee, 45000);
 		break;
 	case 0x1004:
+		/* skip openat with error. */
+		EXPECT_EQ(__NR_openat, get_syscall(_metadata, tracee));
+		change_syscall_ret(_metadata, tracee, -ESRCH);
+		break;
+	case 0x1005:
 		/* do nothing (allow getppid) */
+		EXPECT_EQ(__NR_getppid, get_syscall(_metadata, tracee));
 		break;
 	default:
 		EXPECT_EQ(0, msg) {
@@ -1291,9 +2047,97 @@ void tracer_syscall(struct __test_metadata *_metadata, pid_t tracee,
 
 }
 
-FIXTURE_DATA(TRACE_syscall) {
+FIXTURE(TRACE_syscall) {
 	struct sock_fprog prog;
 	pid_t tracer, mytid, mypid, parent;
+	long syscall_nr;
+};
+
+void tracer_ptrace(struct __test_metadata *_metadata, pid_t tracee,
+		   int status, void *args)
+{
+	int ret;
+	unsigned long msg;
+	static bool entry;
+	long syscall_nr_val, syscall_ret_val;
+	long *syscall_nr = NULL, *syscall_ret = NULL;
+	FIXTURE_DATA(TRACE_syscall) *self = args;
+
+	EXPECT_EQ(WSTOPSIG(status) & 0x80, 0x80) {
+		TH_LOG("Unexpected WSTOPSIG: %d", WSTOPSIG(status));
+		return;
+	}
+
+	/*
+	 * The traditional way to tell PTRACE_SYSCALL entry/exit
+	 * is by counting.
+	 */
+	entry = !entry;
+
+	/* Make sure we got an appropriate message. */
+	ret = ptrace(PTRACE_GETEVENTMSG, tracee, NULL, &msg);
+	EXPECT_EQ(0, ret);
+	EXPECT_EQ(entry ? PTRACE_EVENTMSG_SYSCALL_ENTRY
+			: PTRACE_EVENTMSG_SYSCALL_EXIT, msg);
+
+	/*
+	 * Some architectures only support setting return values during
+	 * syscall exit under ptrace, and on exit the syscall number may
+	 * no longer be available. Therefore, save the initial sycall
+	 * number here, so it can be examined during both entry and exit
+	 * phases.
+	 */
+	if (entry)
+		self->syscall_nr = get_syscall(_metadata, tracee);
+
+	/*
+	 * Depending on the architecture's syscall setting abilities, we
+	 * pick which things to set during this phase (entry or exit).
+	 */
+	if (entry == ptrace_entry_set_syscall_nr)
+		syscall_nr = &syscall_nr_val;
+	if (entry == ptrace_entry_set_syscall_ret)
+		syscall_ret = &syscall_ret_val;
+
+	/* Now handle the actual rewriting cases. */
+	switch (self->syscall_nr) {
+	case __NR_getpid:
+		syscall_nr_val = __NR_getppid;
+		/* Never change syscall return for this case. */
+		syscall_ret = NULL;
+		break;
+	case __NR_gettid:
+		syscall_nr_val = -1;
+		syscall_ret_val = 45000;
+		break;
+	case __NR_openat:
+		syscall_nr_val = -1;
+		syscall_ret_val = -ESRCH;
+		break;
+	default:
+		/* Unhandled, do nothing. */
+		return;
+	}
+
+	__change_syscall(_metadata, tracee, syscall_nr, syscall_ret);
+}
+
+FIXTURE_VARIANT(TRACE_syscall) {
+	/*
+	 * All of the SECCOMP_RET_TRACE behaviors can be tested with either
+	 * SECCOMP_RET_TRACE+PTRACE_CONT or plain ptrace()+PTRACE_SYSCALL.
+	 * This indicates if we should use SECCOMP_RET_TRACE (false), or
+	 * ptrace (true).
+	 */
+	bool use_ptrace;
+};
+
+FIXTURE_VARIANT_ADD(TRACE_syscall, ptrace) {
+	.use_ptrace = true,
+};
+
+FIXTURE_VARIANT_ADD(TRACE_syscall, seccomp) {
+	.use_ptrace = false,
 };
 
 FIXTURE_SETUP(TRACE_syscall)
@@ -1305,16 +2149,17 @@ FIXTURE_SETUP(TRACE_syscall)
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1002),
 		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_gettid, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1003),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_openat, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1004),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE | 0x1005),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 	};
-
-	memset(&self->prog, 0, sizeof(self->prog));
-	self->prog.filter = malloc(sizeof(filter));
-	ASSERT_NE(NULL, self->prog.filter);
-	memcpy(self->prog.filter, filter, sizeof(filter));
-	self->prog.len = (unsigned short)ARRAY_SIZE(filter);
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
 
 	/* Prepare some testable syscall results. */
 	self->mytid = syscall(__NR_gettid);
@@ -1332,26 +2177,52 @@ FIXTURE_SETUP(TRACE_syscall)
 	ASSERT_NE(self->parent, self->mypid);
 
 	/* Launch tracer. */
-	self->tracer = setup_trace_fixture(_metadata, tracer_syscall, NULL);
+	self->tracer = setup_trace_fixture(_metadata,
+					   variant->use_ptrace ? tracer_ptrace
+							       : tracer_seccomp,
+					   self, variant->use_ptrace);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Do not install seccomp rewrite filters, as we'll use ptrace instead. */
+	if (variant->use_ptrace)
+		return;
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
 }
 
 FIXTURE_TEARDOWN(TRACE_syscall)
 {
 	teardown_trace_fixture(_metadata, self->tracer);
-	if (self->prog.filter)
-		free(self->prog.filter);
 }
 
-TEST_F(TRACE_syscall, syscall_allowed)
+TEST(negative_ENOSYS)
 {
-	long ret;
-
-	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
-	ASSERT_EQ(0, ret);
+#if defined(__arm__)
+	SKIP(return, "arm32 does not support calling syscall -1");
+#endif
+	/*
+	 * There should be no difference between an "internal" skip
+	 * and userspace asking for syscall "-1".
+	 */
+	errno = 0;
+	EXPECT_EQ(-1, syscall(-1));
+	EXPECT_EQ(errno, ENOSYS);
+	/* And no difference for "still not valid but not -1". */
+	errno = 0;
+	EXPECT_EQ(-1, syscall(-101));
+	EXPECT_EQ(errno, ENOSYS);
+}
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
-	ASSERT_EQ(0, ret);
+TEST_F(TRACE_syscall, negative_ENOSYS)
+{
+	negative_ENOSYS(_metadata);
+}
 
+TEST_F(TRACE_syscall, syscall_allowed)
+{
 	/* getppid works as expected (no changes). */
 	EXPECT_EQ(self->parent, syscall(__NR_getppid));
 	EXPECT_NE(self->mypid, syscall(__NR_getppid));
@@ -1359,68 +2230,93 @@ TEST_F(TRACE_syscall, syscall_allowed)
 
 TEST_F(TRACE_syscall, syscall_redirected)
 {
-	long ret;
-
-	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
-	ASSERT_EQ(0, ret);
-
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
-	ASSERT_EQ(0, ret);
-
 	/* getpid has been redirected to getppid as expected. */
 	EXPECT_EQ(self->parent, syscall(__NR_getpid));
 	EXPECT_NE(self->mypid, syscall(__NR_getpid));
 }
 
-TEST_F(TRACE_syscall, syscall_dropped)
+TEST_F(TRACE_syscall, syscall_errno)
 {
-	long ret;
+	/* Tracer should skip the open syscall, resulting in ESRCH. */
+	EXPECT_SYSCALL_RETURN(-ESRCH, syscall(__NR_openat));
+}
 
-	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
-	ASSERT_EQ(0, ret);
+TEST_F(TRACE_syscall, syscall_faked)
+{
+	/* Tracer skips the gettid syscall and store altered return value. */
+	EXPECT_SYSCALL_RETURN(45000, syscall(__NR_gettid));
+}
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
+TEST_F_SIGNAL(TRACE_syscall, kill_immediate, SIGSYS)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_mknodat, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL_THREAD),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	/* Install "kill on mknodat" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	/* gettid has been skipped and an altered return value stored. */
-	EXPECT_EQ(1, syscall(__NR_gettid));
-	EXPECT_NE(self->mytid, syscall(__NR_gettid));
+	/* This should immediately die with SIGSYS, regardless of tracer. */
+	EXPECT_EQ(-1, syscall(__NR_mknodat, -1, NULL, 0, 0));
 }
 
-#ifndef __NR_seccomp
-# if defined(__i386__)
-#  define __NR_seccomp 354
-# elif defined(__x86_64__)
-#  define __NR_seccomp 317
-# elif defined(__arm__)
-#  define __NR_seccomp 383
-# elif defined(__aarch64__)
-#  define __NR_seccomp 277
-# else
-#  warning "seccomp syscall number unknown for this architecture"
-#  define __NR_seccomp 0xffff
-# endif
-#endif
-
-#ifndef SECCOMP_SET_MODE_STRICT
-#define SECCOMP_SET_MODE_STRICT 0
-#endif
+TEST_F(TRACE_syscall, skip_after)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | EPERM),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
 
-#ifndef SECCOMP_SET_MODE_FILTER
-#define SECCOMP_SET_MODE_FILTER 1
-#endif
+	/* Install additional "errno on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
 
-#ifndef SECCOMP_FLAG_FILTER_TSYNC
-#define SECCOMP_FLAG_FILTER_TSYNC 1
-#endif
+	/* Tracer will redirect getpid to getppid, and we should see EPERM. */
+	errno = 0;
+	EXPECT_EQ(-1, syscall(__NR_getpid));
+	EXPECT_EQ(EPERM, errno);
+}
 
-#ifndef seccomp
-int seccomp(unsigned int op, unsigned int flags, struct sock_fprog *filter)
+TEST_F_SIGNAL(TRACE_syscall, kill_after, SIGSYS)
 {
-	errno = 0;
-	return syscall(__NR_seccomp, op, flags, filter);
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getppid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+
+	/* Install additional "death on getppid" filter. */
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Tracer will redirect getpid to getppid, and we should die. */
+	EXPECT_NE(self->mypid, syscall(__NR_getpid));
 }
-#endif
 
 TEST(seccomp_syscall)
 {
@@ -1440,6 +2336,9 @@ TEST(seccomp_syscall)
 
 	/* Reject insane operation. */
 	ret = seccomp(-1, 0, &prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	EXPECT_EQ(EINVAL, errno) {
 		TH_LOG("Did not reject crazy op value!");
 	}
@@ -1488,6 +2387,9 @@ TEST(seccomp_syscall_mode_lock)
 	}
 
 	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	EXPECT_EQ(0, ret) {
 		TH_LOG("Could not install filter!");
 	}
@@ -1504,6 +2406,97 @@ TEST(seccomp_syscall_mode_lock)
 	}
 }
 
+/*
+ * Test detection of known and unknown filter flags. Userspace needs to be able
+ * to check if a filter flag is supported by the current kernel and a good way
+ * of doing that is by attempting to enter filter mode, with the flag bit in
+ * question set, and a NULL pointer for the _args_ parameter. EFAULT indicates
+ * that the flag is valid and EINVAL indicates that the flag is invalid.
+ */
+TEST(detect_seccomp_filter_flags)
+{
+	unsigned int flags[] = { SECCOMP_FILTER_FLAG_TSYNC,
+				 SECCOMP_FILTER_FLAG_LOG,
+				 SECCOMP_FILTER_FLAG_SPEC_ALLOW,
+				 SECCOMP_FILTER_FLAG_NEW_LISTENER,
+				 SECCOMP_FILTER_FLAG_TSYNC_ESRCH };
+	unsigned int exclusive[] = {
+				SECCOMP_FILTER_FLAG_TSYNC,
+				SECCOMP_FILTER_FLAG_NEW_LISTENER };
+	unsigned int flag, all_flags, exclusive_mask;
+	int i;
+	long ret;
+
+	/* Test detection of individual known-good filter flags */
+	for (i = 0, all_flags = 0; i < ARRAY_SIZE(flags); i++) {
+		int bits = 0;
+
+		flag = flags[i];
+		/* Make sure the flag is a single bit! */
+		while (flag) {
+			if (flag & 0x1)
+				bits ++;
+			flag >>= 1;
+		}
+		ASSERT_EQ(1, bits);
+		flag = flags[i];
+
+		ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+		ASSERT_NE(ENOSYS, errno) {
+			TH_LOG("Kernel does not support seccomp syscall!");
+		}
+		EXPECT_EQ(-1, ret);
+		EXPECT_EQ(EFAULT, errno) {
+			TH_LOG("Failed to detect that a known-good filter flag (0x%X) is supported!",
+			       flag);
+		}
+
+		all_flags |= flag;
+	}
+
+	/*
+	 * Test detection of all known-good filter flags combined. But
+	 * for the exclusive flags we need to mask them out and try them
+	 * individually for the "all flags" testing.
+	 */
+	exclusive_mask = 0;
+	for (i = 0; i < ARRAY_SIZE(exclusive); i++)
+		exclusive_mask |= exclusive[i];
+	for (i = 0; i < ARRAY_SIZE(exclusive); i++) {
+		flag = all_flags & ~exclusive_mask;
+		flag |= exclusive[i];
+
+		ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+		EXPECT_EQ(-1, ret);
+		EXPECT_EQ(EFAULT, errno) {
+			TH_LOG("Failed to detect that all known-good filter flags (0x%X) are supported!",
+			       flag);
+		}
+	}
+
+	/* Test detection of an unknown filter flags, without exclusives. */
+	flag = -1;
+	flag &= ~exclusive_mask;
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Failed to detect that an unknown filter flag (0x%X) is unsupported!",
+		       flag);
+	}
+
+	/*
+	 * Test detection of an unknown filter flag that may simply need to be
+	 * added to this test
+	 */
+	flag = flags[ARRAY_SIZE(flags) - 1] << 1;
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Failed to detect that an unknown filter flag (0x%X) is unsupported! Does a new flag need to be added to this test?",
+		       flag);
+	}
+}
+
 TEST(TSYNC_first)
 {
 	struct sock_filter filter[] = {
@@ -1520,8 +2513,11 @@ TEST(TSYNC_first)
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
 	}
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	EXPECT_EQ(0, ret) {
 		TH_LOG("Could not install initial filter with TSYNC!");
 	}
@@ -1540,7 +2536,24 @@ struct tsync_sibling {
 	struct __test_metadata *metadata;
 };
 
-FIXTURE_DATA(TSYNC) {
+/*
+ * To avoid joining joined threads (which is not allowed by Bionic),
+ * make sure we both successfully join and clear the tid to skip a
+ * later join attempt during fixture teardown. Any remaining threads
+ * will be directly killed during teardown.
+ */
+#define PTHREAD_JOIN(tid, status)					\
+	do {								\
+		int _rc = pthread_join(tid, status);			\
+		if (_rc) {						\
+			TH_LOG("pthread_join of tid %u failed: %d\n",	\
+				(unsigned int)tid, _rc);		\
+		} else {						\
+			tid = 0;					\
+		}							\
+	} while (0)
+
+FIXTURE(TSYNC) {
 	struct sock_fprog root_prog, apply_prog;
 	struct tsync_sibling sibling[TSYNC_SIBLINGS];
 	sem_t started;
@@ -1608,14 +2621,14 @@ FIXTURE_TEARDOWN(TSYNC)
 
 	for ( ; sib < self->sibling_count; ++sib) {
 		struct tsync_sibling *s = &self->sibling[sib];
-		void *status;
 
 		if (!s->tid)
 			continue;
-		if (pthread_kill(s->tid, 0)) {
-			pthread_cancel(s->tid);
-			pthread_join(s->tid, &status);
-		}
+		/*
+		 * If a thread is still running, it may be stuck, so hit
+		 * it over the head really hard.
+		 */
+		pthread_kill(s->tid, 9);
 	}
 	pthread_mutex_destroy(&self->mutex);
 	pthread_cond_destroy(&self->cond);
@@ -1650,7 +2663,7 @@ void *tsync_sibling(void *data)
 	ret = prctl(PR_GET_NO_NEW_PRIVS, 0, 0, 0, 0);
 	if (!ret)
 		return (void *)SIBLING_EXIT_NEWPRIVS;
-	read(0, NULL, 0);
+	read(-1, NULL, 0);
 	return (void *)SIBLING_EXIT_UNKILLED;
 }
 
@@ -1681,6 +2694,9 @@ TEST_F(TSYNC, siblings_fail_prctl)
 
 	/* Check prctl failure detection by requesting sib 0 diverge. */
 	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	ASSERT_EQ(0, ret) {
 		TH_LOG("setting filter failed");
 	}
@@ -1702,9 +2718,9 @@ TEST_F(TSYNC, siblings_fail_prctl)
 	pthread_mutex_unlock(&self->mutex);
 
 	/* Ensure diverging sibling failed to call prctl. */
-	pthread_join(self->sibling[0].tid, &status);
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_FAILURE, (long)status);
-	pthread_join(self->sibling[1].tid, &status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
 }
 
@@ -1718,6 +2734,9 @@ TEST_F(TSYNC, two_siblings_with_ancestor)
 	}
 
 	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
 	}
@@ -1729,7 +2748,7 @@ TEST_F(TSYNC, two_siblings_with_ancestor)
 		self->sibling_count++;
 	}
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Could install filter on all threads!");
@@ -1741,9 +2760,9 @@ TEST_F(TSYNC, two_siblings_with_ancestor)
 	}
 	pthread_mutex_unlock(&self->mutex);
 	/* Ensure they are both killed and don't exit cleanly. */
-	pthread_join(self->sibling[0].tid, &status);
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
 	EXPECT_EQ(0x0, (long)status);
-	pthread_join(self->sibling[1].tid, &status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
 	EXPECT_EQ(0x0, (long)status);
 }
 
@@ -1767,9 +2786,9 @@ TEST_F(TSYNC, two_sibling_want_nnp)
 	pthread_mutex_unlock(&self->mutex);
 
 	/* Ensure they are both upset about lacking nnp. */
-	pthread_join(self->sibling[0].tid, &status);
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_NEWPRIVS, (long)status);
-	pthread_join(self->sibling[1].tid, &status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_NEWPRIVS, (long)status);
 }
 
@@ -1790,8 +2809,11 @@ TEST_F(TSYNC, two_siblings_with_no_filter)
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
 	}
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Could install filter on all threads!");
 	}
@@ -1804,9 +2826,9 @@ TEST_F(TSYNC, two_siblings_with_no_filter)
 	pthread_mutex_unlock(&self->mutex);
 
 	/* Ensure they are both killed and don't exit cleanly. */
-	pthread_join(self->sibling[0].tid, &status);
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
 	EXPECT_EQ(0x0, (long)status);
-	pthread_join(self->sibling[1].tid, &status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
 	EXPECT_EQ(0x0, (long)status);
 }
 
@@ -1820,6 +2842,9 @@ TEST_F(TSYNC, two_siblings_with_one_divergence)
 	}
 
 	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
 	}
@@ -1832,7 +2857,7 @@ TEST_F(TSYNC, two_siblings_with_one_divergence)
 		self->sibling_count++;
 	}
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
 	ASSERT_EQ(self->sibling[0].system_tid, ret) {
 		TH_LOG("Did not fail on diverged sibling.");
@@ -1846,9 +2871,58 @@ TEST_F(TSYNC, two_siblings_with_one_divergence)
 	pthread_mutex_unlock(&self->mutex);
 
 	/* Ensure they are both unkilled. */
-	pthread_join(self->sibling[0].tid, &status);
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
-	pthread_join(self->sibling[1].tid, &status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
+	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
+}
+
+TEST_F(TSYNC, two_siblings_with_one_divergence_no_tid_in_err)
+{
+	long ret, flags;
+	void *status;
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
+	}
+	self->sibling[0].diverge = 1;
+	tsync_start_sibling(&self->sibling[0]);
+	tsync_start_sibling(&self->sibling[1]);
+
+	while (self->sibling_count < TSYNC_SIBLINGS) {
+		sem_wait(&self->started);
+		self->sibling_count++;
+	}
+
+	flags = SECCOMP_FILTER_FLAG_TSYNC | \
+		SECCOMP_FILTER_FLAG_TSYNC_ESRCH;
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, flags, &self->apply_prog);
+	ASSERT_EQ(ESRCH, errno) {
+		TH_LOG("Did not return ESRCH for diverged sibling.");
+	}
+	ASSERT_EQ(-1, ret) {
+		TH_LOG("Did not fail on diverged sibling.");
+	}
+
+	/* Wake the threads */
+	pthread_mutex_lock(&self->mutex);
+	ASSERT_EQ(0, pthread_cond_broadcast(&self->cond)) {
+		TH_LOG("cond broadcast non-zero");
+	}
+	pthread_mutex_unlock(&self->mutex);
+
+	/* Ensure they are both unkilled. */
+	PTHREAD_JOIN(self->sibling[0].tid, &status);
+	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
+	PTHREAD_JOIN(self->sibling[1].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
 }
 
@@ -1856,6 +2930,7 @@ TEST_F(TSYNC, two_siblings_not_under_filter)
 {
 	long ret, sib;
 	void *status;
+	struct timespec delay = { .tv_nsec = 100000000 };
 
 	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
 		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
@@ -1877,11 +2952,14 @@ TEST_F(TSYNC, two_siblings_not_under_filter)
 	}
 
 	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &self->root_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Kernel does not support SECCOMP_SET_MODE_FILTER!");
 	}
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
 	ASSERT_EQ(ret, self->sibling[0].system_tid) {
 		TH_LOG("Did not fail on diverged sibling.");
@@ -1902,15 +2980,15 @@ TEST_F(TSYNC, two_siblings_not_under_filter)
 		TH_LOG("cond broadcast non-zero");
 	}
 	pthread_mutex_unlock(&self->mutex);
-	pthread_join(self->sibling[sib].tid, &status);
+	PTHREAD_JOIN(self->sibling[sib].tid, &status);
 	EXPECT_EQ(SIBLING_EXIT_UNKILLED, (long)status);
 	/* Poll for actual task death. pthread_join doesn't guarantee it. */
 	while (!kill(self->sibling[sib].system_tid, 0))
-		sleep(0.1);
+		nanosleep(&delay, NULL);
 	/* Switch to the remaining sibling */
 	sib = !sib;
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
 	ASSERT_EQ(0, ret) {
 		TH_LOG("Expected the remaining sibling to sync");
@@ -1927,13 +3005,13 @@ TEST_F(TSYNC, two_siblings_not_under_filter)
 		TH_LOG("cond broadcast non-zero");
 	}
 	pthread_mutex_unlock(&self->mutex);
-	pthread_join(self->sibling[sib].tid, &status);
+	PTHREAD_JOIN(self->sibling[sib].tid, &status);
 	EXPECT_EQ(0, (long)status);
 	/* Poll for actual task death. pthread_join doesn't guarantee it. */
 	while (!kill(self->sibling[sib].system_tid, 0))
-		sleep(0.1);
+		nanosleep(&delay, NULL);
 
-	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FLAG_FILTER_TSYNC,
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC,
 		      &self->apply_prog);
 	ASSERT_EQ(0, ret);  /* just us chickens */
 }
@@ -1952,25 +3030,31 @@ TEST(syscall_restart)
 			 offsetof(struct seccomp_data, nr)),
 
 #ifdef __NR_sigreturn
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_sigreturn, 6, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_sigreturn, 7, 0),
 #endif
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 5, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit, 4, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_rt_sigreturn, 3, 0),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_poll, 4, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 6, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit, 5, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_rt_sigreturn, 4, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_nanosleep, 5, 0),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_clock_nanosleep, 4, 0),
 		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_restart_syscall, 4, 0),
 
 		/* Allow __NR_write for easy logging. */
 		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_write, 0, 1),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x100), /* poll */
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x200), /* restart */
+		/* The nanosleep jump target. */
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x100),
+		/* The restart_syscall jump target. */
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_TRACE|0x200),
 	};
 	struct sock_fprog prog = {
 		.len = (unsigned short)ARRAY_SIZE(filter),
 		.filter = filter,
 	};
+#if defined(__arm__)
+	struct utsname utsbuf;
+#endif
 
 	ASSERT_EQ(0, pipe(pipefd));
 
@@ -1979,10 +3063,7 @@ TEST(syscall_restart)
 	if (child_pid == 0) {
 		/* Child uses EXPECT not ASSERT to deliver status correctly. */
 		char buf = ' ';
-		struct pollfd fds = {
-			.fd = pipefd[0],
-			.events = POLLIN,
-		};
+		struct timespec timeout = { };
 
 		/* Attach parent as tracer and stop. */
 		EXPECT_EQ(0, ptrace(PTRACE_TRACEME));
@@ -2006,10 +3087,12 @@ TEST(syscall_restart)
 			TH_LOG("Failed to get sync data from read()");
 		}
 
-		/* Start poll to be interrupted. */
+		/* Start nanosleep to be interrupted. */
+		timeout.tv_sec = 1;
 		errno = 0;
-		EXPECT_EQ(1, poll(&fds, 1, -1)) {
-			TH_LOG("Call to poll() failed (errno %d)", errno);
+		EXPECT_EQ(0, nanosleep(&timeout, NULL)) {
+			TH_LOG("Call to nanosleep() failed (errno %d: %s)",
+				errno, strerror(errno));
 		}
 
 		/* Read final sync from parent. */
@@ -2021,8 +3104,7 @@ TEST(syscall_restart)
 		}
 
 		/* Directly report the status of our test harness results. */
-		syscall(__NR_exit, _metadata->passed ? EXIT_SUCCESS
-						     : EXIT_FAILURE);
+		syscall(__NR_exit, _metadata->exit_code);
 	}
 	EXPECT_EQ(0, close(pipefd[0]));
 
@@ -2034,14 +3116,15 @@ TEST(syscall_restart)
 	ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0));
 	ASSERT_EQ(1, write(pipefd[1], ".", 1));
 
-	/* Wait for poll() to start. */
+	/* Wait for nanosleep() to start. */
 	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
 	ASSERT_EQ(true, WIFSTOPPED(status));
 	ASSERT_EQ(SIGTRAP, WSTOPSIG(status));
 	ASSERT_EQ(PTRACE_EVENT_SECCOMP, (status >> 16));
 	ASSERT_EQ(0, ptrace(PTRACE_GETEVENTMSG, child_pid, NULL, &msg));
 	ASSERT_EQ(0x100, msg);
-	EXPECT_EQ(__NR_poll, get_syscall(_metadata, child_pid));
+	ret = get_syscall(_metadata, child_pid);
+	EXPECT_TRUE(ret == __NR_nanosleep || ret == __NR_clock_nanosleep);
 
 	/* Might as well check siginfo for sanity while we're here. */
 	ASSERT_EQ(0, ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &info));
@@ -2052,17 +3135,22 @@ TEST(syscall_restart)
 	/* Verify signal delivery came from child (seccomp-triggered). */
 	EXPECT_EQ(child_pid, info.si_pid);
 
-	/* Interrupt poll with SIGSTOP (which we'll need to handle). */
+	/* Interrupt nanosleep with SIGSTOP (which we'll need to handle). */
 	ASSERT_EQ(0, kill(child_pid, SIGSTOP));
 	ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0));
 	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
 	ASSERT_EQ(true, WIFSTOPPED(status));
 	ASSERT_EQ(SIGSTOP, WSTOPSIG(status));
-	/* Verify signal delivery came from parent now. */
 	ASSERT_EQ(0, ptrace(PTRACE_GETSIGINFO, child_pid, NULL, &info));
-	EXPECT_EQ(getpid(), info.si_pid);
+	/*
+	 * There is no siginfo on SIGSTOP any more, so we can't verify
+	 * signal delivery came from parent now (getpid() == info.si_pid).
+	 * https://lkml.kernel.org/r/CAGXu5jJaZAOzP1qFz66tYrtbuywqb+UN2SOA1VLHpCCOiYvYeg@mail.gmail.com
+	 * At least verify the SIGSTOP via PTRACE_GETSIGINFO.
+	 */
+	EXPECT_EQ(SIGSTOP, info.si_signo);
 
-	/* Restart poll with SIGCONT, which triggers restart_syscall. */
+	/* Restart nanosleep with SIGCONT, which triggers restart_syscall. */
 	ASSERT_EQ(0, kill(child_pid, SIGCONT));
 	ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0));
 	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
@@ -2076,34 +3164,2137 @@ TEST(syscall_restart)
 	ASSERT_EQ(SIGTRAP, WSTOPSIG(status));
 	ASSERT_EQ(PTRACE_EVENT_SECCOMP, (status >> 16));
 	ASSERT_EQ(0, ptrace(PTRACE_GETEVENTMSG, child_pid, NULL, &msg));
+
 	ASSERT_EQ(0x200, msg);
 	ret = get_syscall(_metadata, child_pid);
 #if defined(__arm__)
-	/* FIXME: ARM does not expose true syscall in registers. */
-	EXPECT_EQ(__NR_poll, ret);
-#else
-	EXPECT_EQ(__NR_restart_syscall, ret);
+	/*
+	 * - native ARM registers do NOT expose true syscall.
+	 * - compat ARM registers on ARM64 DO expose true syscall.
+	 * - values of utsbuf.machine include 'armv8l' or 'armb8b'
+	 *   for ARM64 running in compat mode.
+	 */
+	ASSERT_EQ(0, uname(&utsbuf));
+	if ((strncmp(utsbuf.machine, "arm", 3) == 0) &&
+	    (strncmp(utsbuf.machine, "armv8l", 6) != 0) &&
+	    (strncmp(utsbuf.machine, "armv8b", 6) != 0)) {
+		EXPECT_EQ(__NR_nanosleep, ret);
+	} else
 #endif
+	{
+		EXPECT_EQ(__NR_restart_syscall, ret);
+	}
 
-	/* Write again to end poll. */
+	/* Write again to end test. */
 	ASSERT_EQ(0, ptrace(PTRACE_CONT, child_pid, NULL, 0));
 	ASSERT_EQ(1, write(pipefd[1], "!", 1));
 	EXPECT_EQ(0, close(pipefd[1]));
 
 	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
 	if (WIFSIGNALED(status) || WEXITSTATUS(status))
-		_metadata->passed = 0;
+		_metadata->exit_code = KSFT_FAIL;
+}
+
+TEST_SIGNAL(filter_flag_log, SIGSYS)
+{
+	struct sock_filter allow_filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_filter kill_filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog allow_prog = {
+		.len = (unsigned short)ARRAY_SIZE(allow_filter),
+		.filter = allow_filter,
+	};
+	struct sock_fprog kill_prog = {
+		.len = (unsigned short)ARRAY_SIZE(kill_filter),
+		.filter = kill_filter,
+	};
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Verify that the FILTER_FLAG_LOG flag isn't accepted in strict mode */
+	ret = seccomp(SECCOMP_SET_MODE_STRICT, SECCOMP_FILTER_FLAG_LOG,
+		      &allow_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
+	EXPECT_NE(0, ret) {
+		TH_LOG("Kernel accepted FILTER_FLAG_LOG flag in strict mode!");
+	}
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Kernel returned unexpected errno for FILTER_FLAG_LOG flag in strict mode!");
+	}
+
+	/* Verify that a simple, permissive filter can be added with no flags */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &allow_prog);
+	EXPECT_EQ(0, ret);
+
+	/* See if the same filter can be added with the FILTER_FLAG_LOG flag */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_LOG,
+		      &allow_prog);
+	ASSERT_NE(EINVAL, errno) {
+		TH_LOG("Kernel does not support the FILTER_FLAG_LOG flag!");
+	}
+	EXPECT_EQ(0, ret);
+
+	/* Ensure that the kill filter works with the FILTER_FLAG_LOG flag */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_LOG,
+		      &kill_prog);
+	EXPECT_EQ(0, ret);
+
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* getpid() should never return. */
+	EXPECT_EQ(0, syscall(__NR_getpid));
+}
+
+TEST(get_action_avail)
+{
+	__u32 actions[] = { SECCOMP_RET_KILL_THREAD, SECCOMP_RET_TRAP,
+			    SECCOMP_RET_ERRNO, SECCOMP_RET_TRACE,
+			    SECCOMP_RET_LOG,   SECCOMP_RET_ALLOW };
+	__u32 unknown_action = 0x10000000U;
+	int i;
+	long ret;
+
+	ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &actions[0]);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
+	ASSERT_NE(EINVAL, errno) {
+		TH_LOG("Kernel does not support SECCOMP_GET_ACTION_AVAIL operation!");
+	}
+	EXPECT_EQ(ret, 0);
+
+	for (i = 0; i < ARRAY_SIZE(actions); i++) {
+		ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &actions[i]);
+		EXPECT_EQ(ret, 0) {
+			TH_LOG("Expected action (0x%X) not available!",
+			       actions[i]);
+		}
+	}
+
+	/* Check that an unknown action is handled properly (EOPNOTSUPP) */
+	ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &unknown_action);
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EOPNOTSUPP);
+}
+
+TEST(get_metadata)
+{
+	pid_t pid;
+	int pipefd[2];
+	char buf;
+	struct seccomp_metadata md;
+	long ret;
+
+	/* Only real root can get metadata. */
+	if (geteuid()) {
+		SKIP(return, "get_metadata requires real root");
+		return;
+	}
+
+	ASSERT_EQ(0, pipe(pipefd));
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		struct sock_filter filter[] = {
+			BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+		};
+		struct sock_fprog prog = {
+			.len = (unsigned short)ARRAY_SIZE(filter),
+			.filter = filter,
+		};
+
+		/* one with log, one without */
+		EXPECT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER,
+				     SECCOMP_FILTER_FLAG_LOG, &prog));
+		EXPECT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog));
+
+		EXPECT_EQ(0, close(pipefd[0]));
+		ASSERT_EQ(1, write(pipefd[1], "1", 1));
+		ASSERT_EQ(0, close(pipefd[1]));
+
+		while (1)
+			sleep(100);
+	}
+
+	ASSERT_EQ(0, close(pipefd[1]));
+	ASSERT_EQ(1, read(pipefd[0], &buf, 1));
+
+	ASSERT_EQ(0, ptrace(PTRACE_ATTACH, pid));
+	ASSERT_EQ(pid, waitpid(pid, NULL, 0));
+
+	/* Past here must not use ASSERT or child process is never killed. */
+
+	md.filter_off = 0;
+	errno = 0;
+	ret = ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md);
+	EXPECT_EQ(sizeof(md), ret) {
+		if (errno == EINVAL)
+			SKIP(goto skip, "Kernel does not support PTRACE_SECCOMP_GET_METADATA (missing CONFIG_CHECKPOINT_RESTORE?)");
+	}
+
+	EXPECT_EQ(md.flags, SECCOMP_FILTER_FLAG_LOG);
+	EXPECT_EQ(md.filter_off, 0);
+
+	md.filter_off = 1;
+	ret = ptrace(PTRACE_SECCOMP_GET_METADATA, pid, sizeof(md), &md);
+	EXPECT_EQ(sizeof(md), ret);
+	EXPECT_EQ(md.flags, 0);
+	EXPECT_EQ(md.filter_off, 1);
+
+skip:
+	ASSERT_EQ(0, kill(pid, SIGKILL));
+}
+
+static int user_notif_syscall(int nr, unsigned int flags)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, nr, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_USER_NOTIF),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	return seccomp(SECCOMP_SET_MODE_FILTER, flags, &prog);
+}
+
+#define USER_NOTIF_MAGIC INT_MAX
+TEST(user_notification_basic)
+{
+	pid_t pid;
+	long ret;
+	int status, listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	struct pollfd pollfd;
+
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	/* Check that we get -ENOSYS with no listener attached */
+	if (pid == 0) {
+		if (user_notif_syscall(__NR_getppid, 0) < 0)
+			exit(1);
+		ret = syscall(__NR_getppid);
+		exit(ret >= 0 || errno != ENOSYS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	/* Add some no-op filters for grins. */
+	EXPECT_EQ(seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog), 0);
+	EXPECT_EQ(seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog), 0);
+	EXPECT_EQ(seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog), 0);
+	EXPECT_EQ(seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog), 0);
+
+	/* Check that the basic notification machinery works */
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	/* Installing a second listener in the chain should EBUSY */
+	EXPECT_EQ(user_notif_syscall(__NR_getppid,
+				     SECCOMP_FILTER_FLAG_NEW_LISTENER),
+		  -1);
+	EXPECT_EQ(errno, EBUSY);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = syscall(__NR_getppid);
+		exit(ret != USER_NOTIF_MAGIC);
+	}
+
+	pollfd.fd = listener;
+	pollfd.events = POLLIN | POLLOUT;
+
+	EXPECT_GT(poll(&pollfd, 1, -1), 0);
+	EXPECT_EQ(pollfd.revents, POLLIN);
+
+	/* Test that we can't pass garbage to the kernel. */
+	memset(&req, 0, sizeof(req));
+	req.pid = -1;
+	errno = 0;
+	ret = ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno);
+
+	if (ret) {
+		req.pid = 0;
+		EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	}
+
+	pollfd.fd = listener;
+	pollfd.events = POLLIN | POLLOUT;
+
+	EXPECT_GT(poll(&pollfd, 1, -1), 0);
+	EXPECT_EQ(pollfd.revents, POLLOUT);
+
+	EXPECT_EQ(req.data.nr,  __NR_getppid);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+
+	/* check that we make sure flags == 0 */
+	resp.flags = 1;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	resp.flags = 0;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(user_notification_with_tsync)
+{
+	int ret;
+	unsigned int flags;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	/* these were exclusive */
+	flags = SECCOMP_FILTER_FLAG_NEW_LISTENER |
+		SECCOMP_FILTER_FLAG_TSYNC;
+	ASSERT_EQ(-1, user_notif_syscall(__NR_getppid, flags));
+	ASSERT_EQ(EINVAL, errno);
+
+	/* but now they're not */
+	flags |= SECCOMP_FILTER_FLAG_TSYNC_ESRCH;
+	ret = user_notif_syscall(__NR_getppid, flags);
+	close(ret);
+	ASSERT_LE(0, ret);
+}
+
+TEST(user_notification_kill_in_middle)
+{
+	pid_t pid;
+	long ret;
+	int listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	/*
+	 * Check that nothing bad happens when we kill the task in the middle
+	 * of a syscall.
+	 */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = syscall(__NR_getppid);
+		exit(ret != USER_NOTIF_MAGIC);
+	}
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ID_VALID, &req.id), 0);
+
+	EXPECT_EQ(kill(pid, SIGKILL), 0);
+	EXPECT_EQ(waitpid(pid, NULL, 0), pid);
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ID_VALID, &req.id), -1);
+
+	resp.id = req.id;
+	ret = ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp);
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, ENOENT);
+}
+
+static int handled = -1;
+
+static void signal_handler(int signal)
+{
+	if (write(handled, "c", 1) != 1)
+		perror("write from signal");
+}
+
+static void signal_handler_nop(int signal)
+{
+}
+
+TEST(user_notification_signal)
+{
+	pid_t pid;
+	long ret;
+	int status, listener, sk_pair[2];
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	char c;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ASSERT_EQ(socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sk_pair), 0);
+
+	listener = user_notif_syscall(__NR_gettid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(sk_pair[0]);
+		handled = sk_pair[1];
+		if (signal(SIGUSR1, signal_handler) == SIG_ERR) {
+			perror("signal");
+			exit(1);
+		}
+		/*
+		 * ERESTARTSYS behavior is a bit hard to test, because we need
+		 * to rely on a signal that has not yet been handled. Let's at
+		 * least check that the error code gets propagated through, and
+		 * hope that it doesn't break when there is actually a signal :)
+		 */
+		ret = syscall(__NR_gettid);
+		exit(!(ret == -1 && errno == 512));
+	}
+
+	close(sk_pair[1]);
+
+	memset(&req, 0, sizeof(req));
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	EXPECT_EQ(kill(pid, SIGUSR1), 0);
+
+	/*
+	 * Make sure the signal really is delivered, which means we're not
+	 * stuck in the user notification code any more and the notification
+	 * should be dead.
+	 */
+	EXPECT_EQ(read(sk_pair[0], &c, 1), 1);
+
+	resp.id = req.id;
+	resp.error = -EPERM;
+	resp.val = 0;
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), -1);
+	EXPECT_EQ(errno, ENOENT);
+
+	memset(&req, 0, sizeof(req));
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	resp.id = req.id;
+	resp.error = -512; /* -ERESTARTSYS */
+	resp.val = 0;
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(user_notification_closed_listener)
+{
+	pid_t pid;
+	long ret;
+	int status, listener;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	/*
+	 * Check that we get an ENOSYS when the listener is closed.
+	 */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		close(listener);
+		ret = syscall(__NR_getppid);
+		exit(ret != -1 && errno != ENOSYS);
+	}
+
+	close(listener);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+/*
+ * Check that a pid in a child namespace still shows up as valid in ours.
+ */
+TEST(user_notification_child_pid_ns)
+{
+	pid_t pid;
+	int status, listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+
+	ASSERT_EQ(unshare(CLONE_NEWUSER | CLONE_NEWPID), 0) {
+		if (errno == EINVAL)
+			SKIP(return, "kernel missing CLONE_NEWUSER support");
+	};
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	EXPECT_EQ(req.pid, pid);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+	close(listener);
+}
+
+/*
+ * Check that a pid in a sibling (i.e. unrelated) namespace shows up as 0, i.e.
+ * invalid.
+ */
+TEST(user_notification_sibling_pid_ns)
+{
+	pid_t pid, pid2;
+	int status, listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+
+	ASSERT_EQ(prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0), 0) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ASSERT_EQ(unshare(CLONE_NEWPID), 0) {
+			if (errno == EPERM)
+				SKIP(return, "CLONE_NEWPID requires CAP_SYS_ADMIN");
+			else if (errno == EINVAL)
+				SKIP(return, "CLONE_NEWPID is invalid (missing CONFIG_PID_NS?)");
+		}
+
+		pid2 = fork();
+		ASSERT_GE(pid2, 0);
+
+		if (pid2 == 0)
+			exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
+
+		EXPECT_EQ(waitpid(pid2, &status, 0), pid2);
+		EXPECT_EQ(true, WIFEXITED(status));
+		EXPECT_EQ(0, WEXITSTATUS(status));
+		exit(WEXITSTATUS(status));
+	}
+
+	/* Create the sibling ns, and sibling in it. */
+	ASSERT_EQ(unshare(CLONE_NEWPID), 0) {
+		if (errno == EPERM)
+			SKIP(return, "CLONE_NEWPID requires CAP_SYS_ADMIN");
+		else if (errno == EINVAL)
+			SKIP(return, "CLONE_NEWPID is invalid (missing CONFIG_PID_NS?)");
+	}
+	ASSERT_EQ(errno, 0);
+
+	pid2 = fork();
+	ASSERT_GE(pid2, 0);
+
+	if (pid2 == 0) {
+		ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+		/*
+		 * The pid should be 0, i.e. the task is in some namespace that
+		 * we can't "see".
+		 */
+		EXPECT_EQ(req.pid, 0);
+
+		resp.id = req.id;
+		resp.error = 0;
+		resp.val = USER_NOTIF_MAGIC;
+
+		ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+		exit(0);
+	}
+
+	close(listener);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	EXPECT_EQ(waitpid(pid2, &status, 0), pid2);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(user_notification_fault_recv)
+{
+	pid_t pid;
+	int status, listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+
+	ASSERT_EQ(unshare(CLONE_NEWUSER), 0) {
+		if (errno == EINVAL)
+			SKIP(return, "kernel missing CLONE_NEWUSER support");
+	}
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
+
+	/* Do a bad recv() */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, NULL), -1);
+	EXPECT_EQ(errno, EFAULT);
+
+	/* We should still be able to receive this notification, though. */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	EXPECT_EQ(req.pid, pid);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+TEST(seccomp_get_notif_sizes)
+{
+	struct seccomp_notif_sizes sizes;
+
+	ASSERT_EQ(seccomp(SECCOMP_GET_NOTIF_SIZES, 0, &sizes), 0);
+	EXPECT_EQ(sizes.seccomp_notif, sizeof(struct seccomp_notif));
+	EXPECT_EQ(sizes.seccomp_notif_resp, sizeof(struct seccomp_notif_resp));
+}
+
+TEST(user_notification_continue)
+{
+	pid_t pid;
+	long ret;
+	int status, listener;
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	struct pollfd pollfd;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(__NR_dup, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int dup_fd, pipe_fds[2];
+		pid_t self;
+
+		ASSERT_GE(pipe(pipe_fds), 0);
+
+		dup_fd = dup(pipe_fds[0]);
+		ASSERT_GE(dup_fd, 0);
+		EXPECT_NE(pipe_fds[0], dup_fd);
+
+		self = getpid();
+		ASSERT_EQ(filecmp(self, self, pipe_fds[0], dup_fd), 0);
+		exit(0);
+	}
+
+	pollfd.fd = listener;
+	pollfd.events = POLLIN | POLLOUT;
+
+	EXPECT_GT(poll(&pollfd, 1, -1), 0);
+	EXPECT_EQ(pollfd.revents, POLLIN);
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	pollfd.fd = listener;
+	pollfd.events = POLLIN | POLLOUT;
+
+	EXPECT_GT(poll(&pollfd, 1, -1), 0);
+	EXPECT_EQ(pollfd.revents, POLLOUT);
+
+	EXPECT_EQ(req.data.nr, __NR_dup);
+
+	resp.id = req.id;
+	resp.flags = SECCOMP_USER_NOTIF_FLAG_CONTINUE;
+
+	/*
+	 * Verify that setting SECCOMP_USER_NOTIF_FLAG_CONTINUE enforces other
+	 * args be set to 0.
+	 */
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	resp.error = USER_NOTIF_MAGIC;
+	resp.val = 0;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	resp.error = 0;
+	resp.val = 0;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0) {
+		if (errno == EINVAL)
+			SKIP(goto skip, "Kernel does not support SECCOMP_USER_NOTIF_FLAG_CONTINUE");
+	}
+
+skip:
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status)) {
+		if (WEXITSTATUS(status) == 2) {
+			SKIP(return, "Kernel does not support kcmp() syscall");
+			return;
+		}
+	}
+}
+
+TEST(user_notification_filter_empty)
+{
+	pid_t pid;
+	long ret;
+	int status;
+	struct pollfd pollfd;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	if (__NR_clone3 < 0)
+		SKIP(return, "Test not built with clone3 support");
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int listener;
+
+		listener = user_notif_syscall(__NR_mknodat, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+		if (listener < 0)
+			_exit(EXIT_FAILURE);
+
+		if (dup2(listener, 200) != 200)
+			_exit(EXIT_FAILURE);
+
+		close(listener);
+
+		_exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	/*
+	 * The seccomp filter has become unused so we should be notified once
+	 * the kernel gets around to cleaning up task struct.
+	 */
+	pollfd.fd = 200;
+	pollfd.events = POLLHUP;
+
+	EXPECT_GT(poll(&pollfd, 1, 2000), 0);
+	EXPECT_GT((pollfd.revents & POLLHUP) ?: 0, 0);
+}
+
+TEST(user_ioctl_notification_filter_empty)
+{
+	pid_t pid;
+	long ret;
+	int status, p[2];
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+	struct seccomp_notif req = {};
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	if (__NR_clone3 < 0)
+		SKIP(return, "Test not built with clone3 support");
+
+	ASSERT_EQ(0, pipe(p));
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		int listener;
+
+		listener = user_notif_syscall(__NR_mknodat, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+		if (listener < 0)
+			_exit(EXIT_FAILURE);
+
+		if (dup2(listener, 200) != 200)
+			_exit(EXIT_FAILURE);
+		close(p[1]);
+		close(listener);
+		sleep(1);
+
+		_exit(EXIT_SUCCESS);
+	}
+	if (read(p[0], &status, 1) != 0)
+		_exit(EXIT_SUCCESS);
+	close(p[0]);
+	/*
+	 * The seccomp filter has become unused so we should be notified once
+	 * the kernel gets around to cleaning up task struct.
+	 */
+	EXPECT_EQ(ioctl(200, SECCOMP_IOCTL_NOTIF_RECV, &req), -1);
+	EXPECT_EQ(errno, ENOENT);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+static void *do_thread(void *data)
+{
+	return NULL;
+}
+
+TEST(user_notification_filter_empty_threaded)
+{
+	pid_t pid;
+	long ret;
+	int status;
+	struct pollfd pollfd;
+	struct __clone_args args = {
+		.flags = CLONE_FILES,
+		.exit_signal = SIGCHLD,
+	};
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	if (__NR_clone3 < 0)
+		SKIP(return, "Test not built with clone3 support");
+
+	pid = sys_clone3(&args, sizeof(args));
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		pid_t pid1, pid2;
+		int listener, status;
+		pthread_t thread;
+
+		listener = user_notif_syscall(__NR_dup, SECCOMP_FILTER_FLAG_NEW_LISTENER);
+		if (listener < 0)
+			_exit(EXIT_FAILURE);
+
+		if (dup2(listener, 200) != 200)
+			_exit(EXIT_FAILURE);
+
+		close(listener);
+
+		pid1 = fork();
+		if (pid1 < 0)
+			_exit(EXIT_FAILURE);
+
+		if (pid1 == 0)
+			_exit(EXIT_SUCCESS);
+
+		pid2 = fork();
+		if (pid2 < 0)
+			_exit(EXIT_FAILURE);
+
+		if (pid2 == 0)
+			_exit(EXIT_SUCCESS);
+
+		if (pthread_create(&thread, NULL, do_thread, NULL) ||
+		    pthread_join(thread, NULL))
+			_exit(EXIT_FAILURE);
+
+		if (pthread_create(&thread, NULL, do_thread, NULL) ||
+		    pthread_join(thread, NULL))
+			_exit(EXIT_FAILURE);
+
+		if (waitpid(pid1, &status, 0) != pid1 || !WIFEXITED(status) ||
+		    WEXITSTATUS(status))
+			_exit(EXIT_FAILURE);
+
+		if (waitpid(pid2, &status, 0) != pid2 || !WIFEXITED(status) ||
+		    WEXITSTATUS(status))
+			_exit(EXIT_FAILURE);
+
+		exit(EXIT_SUCCESS);
+	}
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	/*
+	 * The seccomp filter has become unused so we should be notified once
+	 * the kernel gets around to cleaning up task struct.
+	 */
+	pollfd.fd = 200;
+	pollfd.events = POLLHUP;
+
+	EXPECT_GT(poll(&pollfd, 1, 2000), 0);
+	EXPECT_GT((pollfd.revents & POLLHUP) ?: 0, 0);
+}
+
+
+int get_next_fd(int prev_fd)
+{
+	for (int i = prev_fd + 1; i < FD_SETSIZE; ++i) {
+		if (fcntl(i, F_GETFD) == -1)
+			return i;
+	}
+	_exit(EXIT_FAILURE);
+}
+
+TEST(user_notification_addfd)
+{
+	pid_t pid;
+	long ret;
+	int status, listener, memfd, fd, nextfd;
+	struct seccomp_notif_addfd addfd = {};
+	struct seccomp_notif_addfd_small small = {};
+	struct seccomp_notif_addfd_big big = {};
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	/* 100 ms */
+	struct timespec delay = { .tv_nsec = 100000000 };
+
+	/* There may be arbitrary already-open fds at test start. */
+	memfd = memfd_create("test", 0);
+	ASSERT_GE(memfd, 0);
+	nextfd = get_next_fd(memfd);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	/* fd: 4 */
+	/* Check that the basic notification machinery works */
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_EQ(listener, nextfd);
+	nextfd = get_next_fd(nextfd);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* fds will be added and this value is expected */
+		if (syscall(__NR_getppid) != USER_NOTIF_MAGIC)
+			exit(1);
+
+		/* Atomic addfd+send is received here. Check it is a valid fd */
+		if (fcntl(syscall(__NR_getppid), F_GETFD) == -1)
+			exit(1);
+
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
+	}
+
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	addfd.srcfd = memfd;
+	addfd.newfd = 0;
+	addfd.id = req.id;
+	addfd.flags = 0x0;
+
+	/* Verify bad newfd_flags cannot be set */
+	addfd.newfd_flags = ~O_CLOEXEC;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EINVAL);
+	addfd.newfd_flags = O_CLOEXEC;
+
+	/* Verify bad flags cannot be set */
+	addfd.flags = 0xff;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EINVAL);
+	addfd.flags = 0;
+
+	/* Verify that remote_fd cannot be set without setting flags */
+	addfd.newfd = 1;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EINVAL);
+	addfd.newfd = 0;
+
+	/* Verify small size cannot be set */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD_SMALL, &small), -1);
+	EXPECT_EQ(errno, EINVAL);
+
+	/* Verify we can't send bits filled in unknown buffer area */
+	memset(&big, 0xAA, sizeof(big));
+	big.addfd = addfd;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD_BIG, &big), -1);
+	EXPECT_EQ(errno, E2BIG);
+
+
+	/* Verify we can set an arbitrary remote fd */
+	fd = ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd);
+	EXPECT_EQ(fd, nextfd);
+	nextfd = get_next_fd(nextfd);
+	EXPECT_EQ(filecmp(getpid(), pid, memfd, fd), 0);
+
+	/* Verify we can set an arbitrary remote fd with large size */
+	memset(&big, 0x0, sizeof(big));
+	big.addfd = addfd;
+	fd = ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD_BIG, &big);
+	EXPECT_EQ(fd, nextfd);
+	nextfd = get_next_fd(nextfd);
+
+	/* Verify we can set a specific remote fd */
+	addfd.newfd = 42;
+	addfd.flags = SECCOMP_ADDFD_FLAG_SETFD;
+	fd = ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd);
+	EXPECT_EQ(fd, 42);
+	EXPECT_EQ(filecmp(getpid(), pid, memfd, fd), 0);
+
+	/* Resume syscall */
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	/*
+	 * This sets the ID of the ADD FD to the last request plus 1. The
+	 * notification ID increments 1 per notification.
+	 */
+	addfd.id = req.id + 1;
+
+	/* This spins until the underlying notification is generated */
+	while (ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd) != -1 &&
+	       errno != -EINPROGRESS)
+		nanosleep(&delay, NULL);
+
+	memset(&req, 0, sizeof(req));
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	ASSERT_EQ(addfd.id, req.id);
+
+	/* Verify we can do an atomic addfd and send */
+	addfd.newfd = 0;
+	addfd.flags = SECCOMP_ADDFD_FLAG_SEND;
+	fd = ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd);
+	/*
+	 * Child has earlier "low" fds and now 42, so we expect the next
+	 * lowest available fd to be assigned here.
+	 */
+	EXPECT_EQ(fd, nextfd);
+	nextfd = get_next_fd(nextfd);
+	ASSERT_EQ(filecmp(getpid(), pid, memfd, fd), 0);
+
+	/*
+	 * This sets the ID of the ADD FD to the last request plus 1. The
+	 * notification ID increments 1 per notification.
+	 */
+	addfd.id = req.id + 1;
+
+	/* This spins until the underlying notification is generated */
+	while (ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd) != -1 &&
+	       errno != -EINPROGRESS)
+		nanosleep(&delay, NULL);
+
+	memset(&req, 0, sizeof(req));
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	ASSERT_EQ(addfd.id, req.id);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	/* Wait for child to finish. */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	close(memfd);
+}
+
+TEST(user_notification_addfd_rlimit)
+{
+	pid_t pid;
+	long ret;
+	int status, listener, memfd;
+	struct seccomp_notif_addfd addfd = {};
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	const struct rlimit lim = {
+		.rlim_cur	= 0,
+		.rlim_max	= 0,
+	};
+
+	memfd = memfd_create("test", 0);
+	ASSERT_GE(memfd, 0);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	/* Check that the basic notification machinery works */
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0)
+		exit(syscall(__NR_getppid) != USER_NOTIF_MAGIC);
+
+
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	ASSERT_EQ(prlimit(pid, RLIMIT_NOFILE, &lim, NULL), 0);
+
+	addfd.srcfd = memfd;
+	addfd.newfd_flags = O_CLOEXEC;
+	addfd.newfd = 0;
+	addfd.id = req.id;
+	addfd.flags = 0;
+
+	/* Should probably spot check /proc/sys/fs/file-nr */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EMFILE);
+
+	addfd.flags = SECCOMP_ADDFD_FLAG_SEND;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EMFILE);
+
+	addfd.newfd = 100;
+	addfd.flags = SECCOMP_ADDFD_FLAG_SETFD;
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), -1);
+	EXPECT_EQ(errno, EBADF);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	/* Wait for child to finish. */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	close(memfd);
+}
+
+#ifndef SECCOMP_USER_NOTIF_FD_SYNC_WAKE_UP
+#define SECCOMP_USER_NOTIF_FD_SYNC_WAKE_UP (1UL << 0)
+#define SECCOMP_IOCTL_NOTIF_SET_FLAGS  SECCOMP_IOW(4, __u64)
+#endif
+
+TEST(user_notification_sync)
+{
+	struct seccomp_notif req = {};
+	struct seccomp_notif_resp resp = {};
+	int status, listener;
+	pid_t pid;
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	/* Try to set invalid flags. */
+	EXPECT_SYSCALL_RETURN(-EINVAL,
+		ioctl(listener, SECCOMP_IOCTL_NOTIF_SET_FLAGS, 0xffffffff, 0));
+
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SET_FLAGS,
+			SECCOMP_USER_NOTIF_FD_SYNC_WAKE_UP, 0), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+	if (pid == 0) {
+		ret = syscall(__NR_getppid);
+		ASSERT_EQ(ret, USER_NOTIF_MAGIC) {
+			_exit(1);
+		}
+		_exit(0);
+	}
+
+	req.pid = 0;
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+
+	ASSERT_EQ(req.data.nr,  __NR_getppid);
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+	resp.flags = 0;
+	ASSERT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	ASSERT_EQ(waitpid(pid, &status, 0), pid);
+	ASSERT_EQ(status, 0);
+}
+
+
+/* Make sure PTRACE_O_SUSPEND_SECCOMP requires CAP_SYS_ADMIN. */
+FIXTURE(O_SUSPEND_SECCOMP) {
+	pid_t pid;
+};
+
+FIXTURE_SETUP(O_SUSPEND_SECCOMP)
+{
+	ERRNO_FILTER(block_read, E2BIG);
+	cap_value_t cap_list[] = { CAP_SYS_ADMIN };
+	cap_t caps;
+
+	self->pid = 0;
+
+	/* make sure we don't have CAP_SYS_ADMIN */
+	caps = cap_get_proc();
+	ASSERT_NE(NULL, caps);
+	ASSERT_EQ(0, cap_set_flag(caps, CAP_EFFECTIVE, 1, cap_list, CAP_CLEAR));
+	ASSERT_EQ(0, cap_set_proc(caps));
+	cap_free(caps);
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0));
+	ASSERT_EQ(0, prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_block_read));
+
+	self->pid = fork();
+	ASSERT_GE(self->pid, 0);
+
+	if (self->pid == 0) {
+		while (1)
+			pause();
+		_exit(127);
+	}
+}
+
+FIXTURE_TEARDOWN(O_SUSPEND_SECCOMP)
+{
+	if (self->pid)
+		kill(self->pid, SIGKILL);
+}
+
+TEST_F(O_SUSPEND_SECCOMP, setoptions)
+{
+	int wstatus;
+
+	ASSERT_EQ(0, ptrace(PTRACE_ATTACH, self->pid, NULL, 0));
+	ASSERT_EQ(self->pid, wait(&wstatus));
+	ASSERT_EQ(-1, ptrace(PTRACE_SETOPTIONS, self->pid, NULL, PTRACE_O_SUSPEND_SECCOMP));
+	if (errno == EINVAL)
+		SKIP(return, "Kernel does not support PTRACE_O_SUSPEND_SECCOMP (missing CONFIG_CHECKPOINT_RESTORE?)");
+	ASSERT_EQ(EPERM, errno);
+}
+
+TEST_F(O_SUSPEND_SECCOMP, seize)
+{
+	int ret;
+
+	ret = ptrace(PTRACE_SEIZE, self->pid, NULL, PTRACE_O_SUSPEND_SECCOMP);
+	ASSERT_EQ(-1, ret);
+	if (errno == EINVAL)
+		SKIP(return, "Kernel does not support PTRACE_O_SUSPEND_SECCOMP (missing CONFIG_CHECKPOINT_RESTORE?)");
+	ASSERT_EQ(EPERM, errno);
+}
+
+/*
+ * get_nth - Get the nth, space separated entry in a file.
+ *
+ * Returns the length of the read field.
+ * Throws error if field is zero-lengthed.
+ */
+static ssize_t get_nth(struct __test_metadata *_metadata, const char *path,
+		     const unsigned int position, char **entry)
+{
+	char *line = NULL;
+	unsigned int i;
+	ssize_t nread;
+	size_t len = 0;
+	FILE *f;
+
+	f = fopen(path, "r");
+	ASSERT_NE(f, NULL) {
+		TH_LOG("Could not open %s: %s", path, strerror(errno));
+	}
+
+	for (i = 0; i < position; i++) {
+		nread = getdelim(&line, &len, ' ', f);
+		ASSERT_GE(nread, 0) {
+			TH_LOG("Failed to read %d entry in file %s", i, path);
+		}
+	}
+	fclose(f);
+
+	ASSERT_GT(nread, 0) {
+		TH_LOG("Entry in file %s had zero length", path);
+	}
+
+	*entry = line;
+	return nread - 1;
+}
+
+/* For a given PID, get the task state (D, R, etc...) */
+static char get_proc_stat(struct __test_metadata *_metadata, pid_t pid)
+{
+	char proc_path[100] = {0};
+	char status;
+	char *line;
+
+	snprintf(proc_path, sizeof(proc_path), "/proc/%d/stat", pid);
+	ASSERT_EQ(get_nth(_metadata, proc_path, 3, &line), 1);
+
+	status = *line;
+	free(line);
+
+	return status;
+}
+
+TEST(user_notification_fifo)
+{
+	struct seccomp_notif_resp resp = {};
+	struct seccomp_notif req = {};
+	int i, status, listener;
+	pid_t pid, pids[3];
+	__u64 baseid;
+	long ret;
+	/* 100 ms */
+	struct timespec delay = { .tv_nsec = 100000000 };
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	/* Setup a listener */
+	listener = user_notif_syscall(__NR_getppid,
+				      SECCOMP_FILTER_FLAG_NEW_LISTENER);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		ret = syscall(__NR_getppid);
+		exit(ret != USER_NOTIF_MAGIC);
+	}
+
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	baseid = req.id + 1;
+
+	resp.id = req.id;
+	resp.error = 0;
+	resp.val = USER_NOTIF_MAGIC;
+
+	/* check that we make sure flags == 0 */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	/* Start children, and generate notifications */
+	for (i = 0; i < ARRAY_SIZE(pids); i++) {
+		pid = fork();
+		if (pid == 0) {
+			ret = syscall(__NR_getppid);
+			exit(ret != USER_NOTIF_MAGIC);
+		}
+		pids[i] = pid;
+	}
+
+	/* This spins until all of the children are sleeping */
+restart_wait:
+	for (i = 0; i < ARRAY_SIZE(pids); i++) {
+		if (get_proc_stat(_metadata, pids[i]) != 'S') {
+			nanosleep(&delay, NULL);
+			goto restart_wait;
+		}
+	}
+
+	/* Read the notifications in order (and respond) */
+	for (i = 0; i < ARRAY_SIZE(pids); i++) {
+		memset(&req, 0, sizeof(req));
+		EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+		EXPECT_EQ(req.id, baseid + i);
+		resp.id = req.id;
+		EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+	}
+
+	/* Make sure notifications were received */
+	for (i = 0; i < ARRAY_SIZE(pids); i++) {
+		EXPECT_EQ(waitpid(pids[i], &status, 0), pids[i]);
+		EXPECT_EQ(true, WIFEXITED(status));
+		EXPECT_EQ(0, WEXITSTATUS(status));
+	}
+}
+
+/* get_proc_syscall - Get the syscall in progress for a given pid
+ *
+ * Returns the current syscall number for a given process
+ * Returns -1 if not in syscall (running or blocked)
+ */
+static long get_proc_syscall(struct __test_metadata *_metadata, int pid)
+{
+	char proc_path[100] = {0};
+	long ret = -1;
+	ssize_t nread;
+	char *line;
+
+	snprintf(proc_path, sizeof(proc_path), "/proc/%d/syscall", pid);
+	nread = get_nth(_metadata, proc_path, 1, &line);
+	ASSERT_GT(nread, 0);
+
+	if (!strncmp("running", line, MIN(7, nread)))
+		ret = strtol(line, NULL, 16);
+
+	free(line);
+	return ret;
+}
+
+/* Ensure non-fatal signals prior to receive are unmodified */
+TEST(user_notification_wait_killable_pre_notification)
+{
+	struct sigaction new_action = {
+		.sa_handler = signal_handler,
+	};
+	int listener, status, sk_pair[2];
+	pid_t pid;
+	long ret;
+	char c;
+	/* 100 ms */
+	struct timespec delay = { .tv_nsec = 100000000 };
+
+	ASSERT_EQ(sigemptyset(&new_action.sa_mask), 0);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret)
+	{
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ASSERT_EQ(socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sk_pair), 0);
+
+	listener = user_notif_syscall(
+		__NR_getppid, SECCOMP_FILTER_FLAG_NEW_LISTENER |
+				      SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV);
+	ASSERT_GE(listener, 0);
+
+	/*
+	 * Check that we can kill the process with SIGUSR1 prior to receiving
+	 * the notification. SIGUSR1 is wired up to a custom signal handler,
+	 * and make sure it gets called.
+	 */
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(sk_pair[0]);
+		handled = sk_pair[1];
+
+		/* Setup the non-fatal sigaction without SA_RESTART */
+		if (sigaction(SIGUSR1, &new_action, NULL)) {
+			perror("sigaction");
+			exit(1);
+		}
+
+		ret = syscall(__NR_getppid);
+		/* Make sure we got a return from a signal interruption */
+		exit(ret != -1 || errno != EINTR);
+	}
+
+	/*
+	 * Make sure we've gotten to the seccomp user notification wait
+	 * from getppid prior to sending any signals
+	 */
+	while (get_proc_syscall(_metadata, pid) != __NR_getppid &&
+	       get_proc_stat(_metadata, pid) != 'S')
+		nanosleep(&delay, NULL);
+
+	/* Send non-fatal kill signal */
+	EXPECT_EQ(kill(pid, SIGUSR1), 0);
+
+	/* wait for process to exit (exit checks for EINTR) */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+
+	EXPECT_EQ(read(sk_pair[0], &c, 1), 1);
+}
+
+/* Ensure non-fatal signals after receive are blocked */
+TEST(user_notification_wait_killable)
+{
+	struct sigaction new_action = {
+		.sa_handler = signal_handler,
+	};
+	struct seccomp_notif_resp resp = {};
+	struct seccomp_notif req = {};
+	int listener, status, sk_pair[2];
+	pid_t pid;
+	long ret;
+	char c;
+	/* 100 ms */
+	struct timespec delay = { .tv_nsec = 100000000 };
+
+	ASSERT_EQ(sigemptyset(&new_action.sa_mask), 0);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret)
+	{
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ASSERT_EQ(socketpair(PF_LOCAL, SOCK_SEQPACKET, 0, sk_pair), 0);
+
+	listener = user_notif_syscall(
+		__NR_getppid, SECCOMP_FILTER_FLAG_NEW_LISTENER |
+				      SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		close(sk_pair[0]);
+		handled = sk_pair[1];
+
+		/* Setup the sigaction without SA_RESTART */
+		if (sigaction(SIGUSR1, &new_action, NULL)) {
+			perror("sigaction");
+			exit(1);
+		}
+
+		/* Make sure that the syscall is completed (no EINTR) */
+		ret = syscall(__NR_getppid);
+		exit(ret != USER_NOTIF_MAGIC);
+	}
+
+	/*
+	 * Get the notification, to make move the notifying process into a
+	 * non-preemptible (TASK_KILLABLE) state.
+	 */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	/* Send non-fatal kill signal */
+	EXPECT_EQ(kill(pid, SIGUSR1), 0);
+
+	/*
+	 * Make sure the task enters moves to TASK_KILLABLE by waiting for
+	 * D (Disk Sleep) state after receiving non-fatal signal.
+	 */
+	while (get_proc_stat(_metadata, pid) != 'D')
+		nanosleep(&delay, NULL);
+
+	resp.id = req.id;
+	resp.val = USER_NOTIF_MAGIC;
+	/* Make sure the notification is found and able to be replied to */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_SEND, &resp), 0);
+
+	/*
+	 * Make sure that the signal handler does get called once we're back in
+	 * userspace.
+	 */
+	EXPECT_EQ(read(sk_pair[0], &c, 1), 1);
+	/* wait for process to exit (exit checks for USER_NOTIF_MAGIC) */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+/* Ensure fatal signals after receive are not blocked */
+TEST(user_notification_wait_killable_fatal)
+{
+	struct seccomp_notif req = {};
+	int listener, status;
+	pid_t pid;
+	long ret;
+	/* 100 ms */
+	struct timespec delay = { .tv_nsec = 100000000 };
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret)
+	{
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(
+		__NR_getppid, SECCOMP_FILTER_FLAG_NEW_LISTENER |
+				      SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV);
+	ASSERT_GE(listener, 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		/* This should never complete as it should get a SIGTERM */
+		syscall(__NR_getppid);
+		exit(1);
+	}
+
+	while (get_proc_stat(_metadata, pid) != 'S')
+		nanosleep(&delay, NULL);
+
+	/*
+	 * Get the notification, to make move the notifying process into a
+	 * non-preemptible (TASK_KILLABLE) state.
+	 */
+	EXPECT_EQ(ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req), 0);
+	/* Kill the process with a fatal signal */
+	EXPECT_EQ(kill(pid, SIGTERM), 0);
+
+	/*
+	 * Wait for the process to exit, and make sure the process terminated
+	 * due to the SIGTERM signal.
+	 */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFSIGNALED(status));
+	EXPECT_EQ(SIGTERM, WTERMSIG(status));
+}
+
+/* Ensure signals after the reply do not interrupt */
+TEST(user_notification_wait_killable_after_reply)
+{
+	int i, max_iter = 100000;
+	int listener, status;
+	int pipe_fds[2];
+	pid_t pid;
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret)
+	{
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	listener = user_notif_syscall(
+		__NR_dup, SECCOMP_FILTER_FLAG_NEW_LISTENER |
+			  SECCOMP_FILTER_FLAG_WAIT_KILLABLE_RECV);
+	ASSERT_GE(listener, 0);
+
+	/*
+	 * Used to count invocations. One token is transferred from the child
+	 * to the parent per syscall invocation, the parent tries to take
+	 * one token per successful RECV. If the syscall is restarted after
+	 * RECV the parent will try to get two tokens while the child only
+	 * provided one.
+	 */
+	ASSERT_EQ(pipe(pipe_fds), 0);
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		struct sigaction new_action = {
+			.sa_handler = signal_handler_nop,
+			.sa_flags = SA_RESTART,
+		};
+		struct itimerval timer = {
+			.it_value = { .tv_usec = 1000 },
+			.it_interval = { .tv_usec = 1000 },
+		};
+		char c = 'a';
+
+		close(pipe_fds[0]);
+
+		/* Setup the sigaction with SA_RESTART */
+		if (sigaction(SIGALRM, &new_action, NULL)) {
+			perror("sigaction");
+			exit(1);
+		}
+
+		/*
+		 * Kill with SIGALRM repeatedly, to try to hit the race when
+		 * handling the syscall.
+		 */
+		if (setitimer(ITIMER_REAL, &timer, NULL) < 0)
+			perror("setitimer");
+
+		for (i = 0; i < max_iter; ++i) {
+			int fd;
+
+			/* Send one token per iteration to catch repeats. */
+			if (write(pipe_fds[1], &c, sizeof(c)) != 1) {
+				perror("write");
+				exit(1);
+			}
+
+			fd = syscall(__NR_dup, 0);
+			if (fd < 0) {
+				perror("dup");
+				exit(1);
+			}
+			close(fd);
+		}
+
+		exit(0);
+	}
+
+	close(pipe_fds[1]);
+
+	for (i = 0; i < max_iter; ++i) {
+		struct seccomp_notif req = {};
+		struct seccomp_notif_addfd addfd = {};
+		struct pollfd pfd = {
+			.fd = pipe_fds[0],
+			.events = POLLIN,
+		};
+		char c;
+
+		/*
+		 * Try to receive one token. If it failed, one child syscall
+		 * was restarted after RECV and needed to be handled twice.
+		 */
+		ASSERT_EQ(poll(&pfd, 1, 1000), 1)
+			kill(pid, SIGKILL);
+
+		ASSERT_EQ(read(pipe_fds[0], &c, sizeof(c)), 1)
+			kill(pid, SIGKILL);
+
+		/*
+		 * Get the notification, reply to it as fast as possible to test
+		 * whether the child wrongly skips going into the non-preemptible
+		 * (TASK_KILLABLE) state.
+		 */
+		do
+			ret = ioctl(listener, SECCOMP_IOCTL_NOTIF_RECV, &req);
+		while (ret < 0 && errno == ENOENT); /* Accept interruptions before RECV */
+		ASSERT_EQ(ret, 0)
+			kill(pid, SIGKILL);
+
+		addfd.id = req.id;
+		addfd.flags = SECCOMP_ADDFD_FLAG_SEND;
+		addfd.srcfd = 0;
+		ASSERT_GE(ioctl(listener, SECCOMP_IOCTL_NOTIF_ADDFD, &addfd), 0)
+			kill(pid, SIGKILL);
+	}
+
+	/*
+	 * Wait for the process to exit, and make sure the process terminated
+	 * with a zero exit code..
+	 */
+	EXPECT_EQ(waitpid(pid, &status, 0), pid);
+	EXPECT_EQ(true, WIFEXITED(status));
+	EXPECT_EQ(0, WEXITSTATUS(status));
+}
+
+struct tsync_vs_thread_leader_args {
+	pthread_t leader;
+};
+
+static void *tsync_vs_dead_thread_leader_sibling(void *_args)
+{
+	struct sock_filter allow_filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog allow_prog = {
+		.len = (unsigned short)ARRAY_SIZE(allow_filter),
+		.filter = allow_filter,
+	};
+	struct tsync_vs_thread_leader_args *args = _args;
+	void *retval;
+	long ret;
+
+	ret = pthread_join(args->leader, &retval);
+	if (ret)
+		exit(1);
+	if (retval != _args)
+		exit(2);
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_TSYNC, &allow_prog);
+	if (ret)
+		exit(3);
+
+	exit(0);
+}
+
+/*
+ * Ensure that a dead thread leader doesn't prevent installing new filters with
+ * SECCOMP_FILTER_FLAG_TSYNC from other threads.
+ */
+TEST(tsync_vs_dead_thread_leader)
+{
+	int status;
+	pid_t pid;
+	long ret;
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	pid = fork();
+	ASSERT_GE(pid, 0);
+
+	if (pid == 0) {
+		struct sock_filter allow_filter[] = {
+			BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+		};
+		struct sock_fprog allow_prog = {
+			.len = (unsigned short)ARRAY_SIZE(allow_filter),
+			.filter = allow_filter,
+		};
+		struct  tsync_vs_thread_leader_args *args;
+		pthread_t sibling;
+
+		args = malloc(sizeof(*args));
+		ASSERT_NE(NULL, args);
+		args->leader = pthread_self();
+
+		ret = pthread_create(&sibling, NULL,
+				     tsync_vs_dead_thread_leader_sibling, args);
+		ASSERT_EQ(0, ret);
+
+		/* Install a new filter just to the leader thread. */
+		ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &allow_prog);
+		ASSERT_EQ(0, ret);
+		pthread_exit(args);
+		exit(1);
+	}
+
+	EXPECT_EQ(pid, waitpid(pid, &status, 0));
+	EXPECT_EQ(0, status);
+}
+
+#ifdef __x86_64__
+
+/*
+ * We need naked probed_uprobe function. Using __nocf_check
+ * check to skip possible endbr64 instruction and ignoring
+ * -Wattributes, otherwise the compilation might fail.
+ */
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wattributes"
+
+__naked __nocf_check noinline int probed_uprobe(void)
+{
+	/*
+	 * Optimized uprobe is possible only on top of nop5 instruction.
+	 */
+	asm volatile ("                                 \n"
+		".byte 0x0f, 0x1f, 0x44, 0x00, 0x00     \n"
+		"ret                                    \n"
+	);
+}
+#pragma GCC diagnostic pop
+
+#else
+noinline int probed_uprobe(void)
+{
+	return 1;
+}
+#endif
+
+noinline int probed_uretprobe(void)
+{
+	return 1;
+}
+
+static int parse_uint_from_file(const char *file, const char *fmt)
+{
+	int err = -1, ret;
+	FILE *f;
+
+	f = fopen(file, "re");
+	if (f) {
+		err = fscanf(f, fmt, &ret);
+		fclose(f);
+	}
+	return err == 1 ? ret : err;
+}
+
+static int determine_uprobe_perf_type(void)
+{
+	const char *file = "/sys/bus/event_source/devices/uprobe/type";
+
+	return parse_uint_from_file(file, "%d\n");
+}
+
+static int determine_uprobe_retprobe_bit(void)
+{
+	const char *file = "/sys/bus/event_source/devices/uprobe/format/retprobe";
+
+	return parse_uint_from_file(file, "config:%d\n");
+}
+
+static ssize_t get_uprobe_offset(const void *addr)
+{
+	size_t start, base, end;
+	bool found = false;
+	char buf[256];
+	FILE *f;
+
+	f = fopen("/proc/self/maps", "r");
+	if (!f)
+		return -1;
+
+	while (fscanf(f, "%zx-%zx %s %zx %*[^\n]\n", &start, &end, buf, &base) == 4) {
+		if (buf[2] == 'x' && (uintptr_t)addr >= start && (uintptr_t)addr < end) {
+			found = true;
+			break;
+		}
+	}
+	fclose(f);
+	return found ? (uintptr_t)addr - start + base : -1;
+}
+
+FIXTURE(UPROBE) {
+	int fd;
+};
+
+FIXTURE_VARIANT(UPROBE) {
+	/*
+	 * All of the U(RET)PROBE behaviors can be tested with either
+	 * u(ret)probe attached or not
+	 */
+	bool attach;
+	/*
+	 * Test both uprobe and uretprobe.
+	 */
+	bool uretprobe;
+};
+
+FIXTURE_VARIANT_ADD(UPROBE, not_attached) {
+	.attach = false,
+	.uretprobe = false,
+};
+
+FIXTURE_VARIANT_ADD(UPROBE, uprobe_attached) {
+	.attach = true,
+	.uretprobe = false,
+};
+
+FIXTURE_VARIANT_ADD(UPROBE, uretprobe_attached) {
+	.attach = true,
+	.uretprobe = true,
+};
+
+FIXTURE_SETUP(UPROBE)
+{
+	const size_t attr_sz = sizeof(struct perf_event_attr);
+	struct perf_event_attr attr;
+	ssize_t offset;
+	int type, bit;
+
+#if !defined(__NR_uprobe) || !defined(__NR_uretprobe)
+	SKIP(return, "__NR_uprobe ot __NR_uretprobe syscalls not defined");
+#endif
+
+	if (!variant->attach)
+		return;
+
+	memset(&attr, 0, attr_sz);
+
+	type = determine_uprobe_perf_type();
+	ASSERT_GE(type, 0);
+
+	if (variant->uretprobe) {
+		bit = determine_uprobe_retprobe_bit();
+		ASSERT_GE(bit, 0);
+	}
+
+	offset = get_uprobe_offset(variant->uretprobe ? probed_uretprobe : probed_uprobe);
+	ASSERT_GE(offset, 0);
+
+	if (variant->uretprobe)
+		attr.config |= 1 << bit;
+	attr.size = attr_sz;
+	attr.type = type;
+	attr.config1 = ptr_to_u64("/proc/self/exe");
+	attr.config2 = offset;
+
+	self->fd = syscall(__NR_perf_event_open, &attr,
+			   getpid() /* pid */, -1 /* cpu */, -1 /* group_fd */,
+			   PERF_FLAG_FD_CLOEXEC);
+}
+
+FIXTURE_TEARDOWN(UPROBE)
+{
+	/* we could call close(self->fd), but we'd need extra filter for
+	 * that and since we are calling _exit right away..
+	 */
+}
+
+static int run_probed_with_filter(struct sock_fprog *prog)
+{
+	if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) ||
+	    seccomp(SECCOMP_SET_MODE_FILTER, 0, prog)) {
+		return -1;
+	}
+
+	/*
+	 * Uprobe is optimized after first hit, so let's hit twice.
+	 */
+	probed_uprobe();
+	probed_uprobe();
+
+	probed_uretprobe();
+	return 0;
+}
+
+TEST_F(UPROBE, uprobe_default_allow)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	ASSERT_EQ(0, run_probed_with_filter(&prog));
+}
+
+TEST_F(UPROBE, uprobe_default_block)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit_group, 1, 0),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	ASSERT_EQ(0, run_probed_with_filter(&prog));
+}
+
+TEST_F(UPROBE, uprobe_block_syscall)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+#ifdef __NR_uprobe
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uprobe, 1, 2),
+#endif
+#ifdef __NR_uretprobe
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uretprobe, 0, 1),
+#endif
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	ASSERT_EQ(0, run_probed_with_filter(&prog));
+}
+
+TEST_F(UPROBE, uprobe_default_block_with_syscall)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+#ifdef __NR_uprobe
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uprobe, 3, 0),
+#endif
+#ifdef __NR_uretprobe
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_uretprobe, 2, 0),
+#endif
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_exit_group, 1, 0),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+
+	ASSERT_EQ(0, run_probed_with_filter(&prog));
 }
 
 /*
  * TODO:
- * - add microbenchmarks
  * - expand NNP testing
  * - better arch-specific TRACE and TRAP handlers.
  * - endianness checking when appropriate
  * - 64-bit arg prodding
  * - arch value testing (x86 modes especially)
- * - ...
+ * - verify that FILTER_FLAG_LOG filters generate log messages
+ * - verify that RET_LOG generates log messages
  */
 
 TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/seccomp/settings b/tools/testing/selftests/seccomp/settings
new file mode 100644
index 000000000000..a953c96aa16e
--- /dev/null
+++ b/tools/testing/selftests/seccomp/settings
@@ -0,0 +1 @@
+timeout=180
diff --git a/tools/testing/selftests/seccomp/test_harness.h b/tools/testing/selftests/seccomp/test_harness.h
deleted file mode 100644
index 977a6afc4489..000000000000
--- a/tools/testing/selftests/seccomp/test_harness.h
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
- * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by the GPLv2 license.
- *
- * test_harness.h: simple C unit test helper.
- *
- * Usage:
- *   #include "test_harness.h"
- *   TEST(standalone_test) {
- *     do_some_stuff;
- *     EXPECT_GT(10, stuff) {
- *        stuff_state_t state;
- *        enumerate_stuff_state(&state);
- *        TH_LOG("expectation failed with state: %s", state.msg);
- *     }
- *     more_stuff;
- *     ASSERT_NE(some_stuff, NULL) TH_LOG("how did it happen?!");
- *     last_stuff;
- *     EXPECT_EQ(0, last_stuff);
- *   }
- *
- *   FIXTURE(my_fixture) {
- *     mytype_t *data;
- *     int awesomeness_level;
- *   };
- *   FIXTURE_SETUP(my_fixture) {
- *     self->data = mytype_new();
- *     ASSERT_NE(NULL, self->data);
- *   }
- *   FIXTURE_TEARDOWN(my_fixture) {
- *     mytype_free(self->data);
- *   }
- *   TEST_F(my_fixture, data_is_good) {
- *     EXPECT_EQ(1, is_my_data_good(self->data));
- *   }
- *
- *   TEST_HARNESS_MAIN
- *
- * API inspired by code.google.com/p/googletest
- */
-#ifndef TEST_HARNESS_H_
-#define TEST_HARNESS_H_
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-/* All exported functionality should be declared through this macro. */
-#define TEST_API(x) _##x
-
-/*
- * Exported APIs
- */
-
-/* TEST(name) { implementation }
- * Defines a test by name.
- * Names must be unique and tests must not be run in parallel.  The
- * implementation containing block is a function and scoping should be treated
- * as such.  Returning early may be performed with a bare "return;" statement.
- *
- * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
- */
-#define TEST TEST_API(TEST)
-
-/* TEST_SIGNAL(name, signal) { implementation }
- * Defines a test by name and the expected term signal.
- * Names must be unique and tests must not be run in parallel.  The
- * implementation containing block is a function and scoping should be treated
- * as such.  Returning early may be performed with a bare "return;" statement.
- *
- * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
- */
-#define TEST_SIGNAL TEST_API(TEST_SIGNAL)
-
-/* FIXTURE(datatype name) {
- *   type property1;
- *   ...
- * };
- * Defines the data provided to TEST_F()-defined tests as |self|.  It should be
- * populated and cleaned up using FIXTURE_SETUP and FIXTURE_TEARDOWN.
- */
-#define FIXTURE TEST_API(FIXTURE)
-
-/* FIXTURE_DATA(datatype name)
- * This call may be used when the type of the fixture data
- * is needed.  In general, this should not be needed unless
- * the |self| is being passed to a helper directly.
- */
-#define FIXTURE_DATA TEST_API(FIXTURE_DATA)
-
-/* FIXTURE_SETUP(fixture name) { implementation }
- * Populates the required "setup" function for a fixture.  An instance of the
- * datatype defined with _FIXTURE_DATA will be exposed as |self| for the
- * implementation.
- *
- * ASSERT_* are valid for use in this context and will prempt the execution
- * of any dependent fixture tests.
- *
- * A bare "return;" statement may be used to return early.
- */
-#define FIXTURE_SETUP TEST_API(FIXTURE_SETUP)
-
-/* FIXTURE_TEARDOWN(fixture name) { implementation }
- * Populates the required "teardown" function for a fixture.  An instance of the
- * datatype defined with _FIXTURE_DATA will be exposed as |self| for the
- * implementation to clean up.
- *
- * A bare "return;" statement may be used to return early.
- */
-#define FIXTURE_TEARDOWN TEST_API(FIXTURE_TEARDOWN)
-
-/* TEST_F(fixture, name) { implementation }
- * Defines a test that depends on a fixture (e.g., is part of a test case).
- * Very similar to TEST() except that |self| is the setup instance of fixture's
- * datatype exposed for use by the implementation.
- */
-#define TEST_F TEST_API(TEST_F)
-
-#define TEST_F_SIGNAL TEST_API(TEST_F_SIGNAL)
-
-/* Use once to append a main() to the test file. E.g.,
- *   TEST_HARNESS_MAIN
- */
-#define TEST_HARNESS_MAIN TEST_API(TEST_HARNESS_MAIN)
-
-/*
- * Operators for use in TEST and TEST_F.
- * ASSERT_* calls will stop test execution immediately.
- * EXPECT_* calls will emit a failure warning, note it, and continue.
- */
-
-/* ASSERT_EQ(expected, measured): expected == measured */
-#define ASSERT_EQ TEST_API(ASSERT_EQ)
-/* ASSERT_NE(expected, measured): expected != measured */
-#define ASSERT_NE TEST_API(ASSERT_NE)
-/* ASSERT_LT(expected, measured): expected < measured */
-#define ASSERT_LT TEST_API(ASSERT_LT)
-/* ASSERT_LE(expected, measured): expected <= measured */
-#define ASSERT_LE TEST_API(ASSERT_LE)
-/* ASSERT_GT(expected, measured): expected > measured */
-#define ASSERT_GT TEST_API(ASSERT_GT)
-/* ASSERT_GE(expected, measured): expected >= measured */
-#define ASSERT_GE TEST_API(ASSERT_GE)
-/* ASSERT_NULL(measured): NULL == measured */
-#define ASSERT_NULL TEST_API(ASSERT_NULL)
-/* ASSERT_TRUE(measured): measured != 0 */
-#define ASSERT_TRUE TEST_API(ASSERT_TRUE)
-/* ASSERT_FALSE(measured): measured == 0 */
-#define ASSERT_FALSE TEST_API(ASSERT_FALSE)
-/* ASSERT_STREQ(expected, measured): !strcmp(expected, measured) */
-#define ASSERT_STREQ TEST_API(ASSERT_STREQ)
-/* ASSERT_STRNE(expected, measured): strcmp(expected, measured) */
-#define ASSERT_STRNE TEST_API(ASSERT_STRNE)
-/* EXPECT_EQ(expected, measured): expected == measured */
-#define EXPECT_EQ TEST_API(EXPECT_EQ)
-/* EXPECT_NE(expected, measured): expected != measured */
-#define EXPECT_NE TEST_API(EXPECT_NE)
-/* EXPECT_LT(expected, measured): expected < measured */
-#define EXPECT_LT TEST_API(EXPECT_LT)
-/* EXPECT_LE(expected, measured): expected <= measured */
-#define EXPECT_LE TEST_API(EXPECT_LE)
-/* EXPECT_GT(expected, measured): expected > measured */
-#define EXPECT_GT TEST_API(EXPECT_GT)
-/* EXPECT_GE(expected, measured): expected >= measured */
-#define EXPECT_GE TEST_API(EXPECT_GE)
-/* EXPECT_NULL(measured): NULL == measured */
-#define EXPECT_NULL TEST_API(EXPECT_NULL)
-/* EXPECT_TRUE(measured): 0 != measured */
-#define EXPECT_TRUE TEST_API(EXPECT_TRUE)
-/* EXPECT_FALSE(measured): 0 == measured */
-#define EXPECT_FALSE TEST_API(EXPECT_FALSE)
-/* EXPECT_STREQ(expected, measured): !strcmp(expected, measured) */
-#define EXPECT_STREQ TEST_API(EXPECT_STREQ)
-/* EXPECT_STRNE(expected, measured): strcmp(expected, measured) */
-#define EXPECT_STRNE TEST_API(EXPECT_STRNE)
-
-/* TH_LOG(format, ...)
- * Optional debug logging function available for use in tests.
- * Logging may be enabled or disabled by defining TH_LOG_ENABLED.
- * E.g., #define TH_LOG_ENABLED 1
- * If no definition is provided, logging is enabled by default.
- */
-#define TH_LOG  TEST_API(TH_LOG)
-
-/*
- * Internal implementation.
- *
- */
-
-/* Utilities exposed to the test definitions */
-#ifndef TH_LOG_STREAM
-#  define TH_LOG_STREAM stderr
-#endif
-
-#ifndef TH_LOG_ENABLED
-#  define TH_LOG_ENABLED 1
-#endif
-
-#define _TH_LOG(fmt, ...) do { \
-	if (TH_LOG_ENABLED) \
-		__TH_LOG(fmt, ##__VA_ARGS__); \
-} while (0)
-
-/* Unconditional logger for internal use. */
-#define __TH_LOG(fmt, ...) \
-		fprintf(TH_LOG_STREAM, "%s:%d:%s:" fmt "\n", \
-			__FILE__, __LINE__, _metadata->name, ##__VA_ARGS__)
-
-/* Defines the test function and creates the registration stub. */
-#define _TEST(test_name) __TEST_IMPL(test_name, -1)
-
-#define _TEST_SIGNAL(test_name, signal) __TEST_IMPL(test_name, signal)
-
-#define __TEST_IMPL(test_name, _signal) \
-	static void test_name(struct __test_metadata *_metadata); \
-	static struct __test_metadata _##test_name##_object = \
-		{ name: "global." #test_name, \
-		  fn: &test_name, termsig: _signal }; \
-	static void __attribute__((constructor)) _register_##test_name(void) \
-	{ \
-		__register_test(&_##test_name##_object); \
-	} \
-	static void test_name( \
-		struct __test_metadata __attribute__((unused)) *_metadata)
-
-/* Wraps the struct name so we have one less argument to pass around. */
-#define _FIXTURE_DATA(fixture_name) struct _test_data_##fixture_name
-
-/* Called once per fixture to setup the data and register. */
-#define _FIXTURE(fixture_name) \
-	static void __attribute__((constructor)) \
-	_register_##fixture_name##_data(void) \
-	{ \
-		__fixture_count++; \
-	} \
-	_FIXTURE_DATA(fixture_name)
-
-/* Prepares the setup function for the fixture.  |_metadata| is included
- * so that ASSERT_* work as a convenience.
- */
-#define _FIXTURE_SETUP(fixture_name) \
-	void fixture_name##_setup( \
-		struct __test_metadata __attribute__((unused)) *_metadata, \
-		_FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
-#define _FIXTURE_TEARDOWN(fixture_name) \
-	void fixture_name##_teardown( \
-		struct __test_metadata __attribute__((unused)) *_metadata, \
-		_FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
-
-/* Emits test registration and helpers for fixture-based test
- * cases.
- * TODO(wad) register fixtures on dedicated test lists.
- */
-#define _TEST_F(fixture_name, test_name) \
-	__TEST_F_IMPL(fixture_name, test_name, -1)
-
-#define _TEST_F_SIGNAL(fixture_name, test_name, signal) \
-	__TEST_F_IMPL(fixture_name, test_name, signal)
-
-#define __TEST_F_IMPL(fixture_name, test_name, signal) \
-	static void fixture_name##_##test_name( \
-		struct __test_metadata *_metadata, \
-		_FIXTURE_DATA(fixture_name) *self); \
-	static inline void wrapper_##fixture_name##_##test_name( \
-		struct __test_metadata *_metadata) \
-	{ \
-		/* fixture data is alloced, setup, and torn down per call. */ \
-		_FIXTURE_DATA(fixture_name) self; \
-		memset(&self, 0, sizeof(_FIXTURE_DATA(fixture_name))); \
-		fixture_name##_setup(_metadata, &self); \
-		/* Let setup failure terminate early. */ \
-		if (!_metadata->passed) \
-			return; \
-		fixture_name##_##test_name(_metadata, &self); \
-		fixture_name##_teardown(_metadata, &self); \
-	} \
-	static struct __test_metadata \
-		      _##fixture_name##_##test_name##_object = { \
-		name: #fixture_name "." #test_name, \
-		fn: &wrapper_##fixture_name##_##test_name, \
-		termsig: signal, \
-	 }; \
-	static void __attribute__((constructor)) \
-			_register_##fixture_name##_##test_name(void) \
-	{ \
-		__register_test(&_##fixture_name##_##test_name##_object); \
-	} \
-	static void fixture_name##_##test_name( \
-		struct __test_metadata __attribute__((unused)) *_metadata, \
-		_FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
-
-/* Exports a simple wrapper to run the test harness. */
-#define _TEST_HARNESS_MAIN \
-	static void __attribute__((constructor)) \
-	__constructor_order_last(void) \
-	{ \
-		if (!__constructor_order) \
-			__constructor_order = _CONSTRUCTOR_ORDER_BACKWARD; \
-	} \
-	int main(int argc, char **argv) { \
-		return test_harness_run(argc, argv); \
-	}
-
-#define _ASSERT_EQ(_expected, _seen) \
-	__EXPECT(_expected, _seen, ==, 1)
-#define _ASSERT_NE(_expected, _seen) \
-	__EXPECT(_expected, _seen, !=, 1)
-#define _ASSERT_LT(_expected, _seen) \
-	__EXPECT(_expected, _seen, <, 1)
-#define _ASSERT_LE(_expected, _seen) \
-	__EXPECT(_expected, _seen, <=, 1)
-#define _ASSERT_GT(_expected, _seen) \
-	__EXPECT(_expected, _seen, >, 1)
-#define _ASSERT_GE(_expected, _seen) \
-	__EXPECT(_expected, _seen, >=, 1)
-#define _ASSERT_NULL(_seen) \
-	__EXPECT(NULL, _seen, ==, 1)
-
-#define _ASSERT_TRUE(_seen) \
-	_ASSERT_NE(0, _seen)
-#define _ASSERT_FALSE(_seen) \
-	_ASSERT_EQ(0, _seen)
-#define _ASSERT_STREQ(_expected, _seen) \
-	__EXPECT_STR(_expected, _seen, ==, 1)
-#define _ASSERT_STRNE(_expected, _seen) \
-	__EXPECT_STR(_expected, _seen, !=, 1)
-
-#define _EXPECT_EQ(_expected, _seen) \
-	__EXPECT(_expected, _seen, ==, 0)
-#define _EXPECT_NE(_expected, _seen) \
-	__EXPECT(_expected, _seen, !=, 0)
-#define _EXPECT_LT(_expected, _seen) \
-	__EXPECT(_expected, _seen, <, 0)
-#define _EXPECT_LE(_expected, _seen) \
-	__EXPECT(_expected, _seen, <=, 0)
-#define _EXPECT_GT(_expected, _seen) \
-	__EXPECT(_expected, _seen, >, 0)
-#define _EXPECT_GE(_expected, _seen) \
-	__EXPECT(_expected, _seen, >=, 0)
-
-#define _EXPECT_NULL(_seen) \
-	__EXPECT(NULL, _seen, ==, 0)
-#define _EXPECT_TRUE(_seen) \
-	_EXPECT_NE(0, _seen)
-#define _EXPECT_FALSE(_seen) \
-	_EXPECT_EQ(0, _seen)
-
-#define _EXPECT_STREQ(_expected, _seen) \
-	__EXPECT_STR(_expected, _seen, ==, 0)
-#define _EXPECT_STRNE(_expected, _seen) \
-	__EXPECT_STR(_expected, _seen, !=, 0)
-
-#define ARRAY_SIZE(a)	(sizeof(a) / sizeof(a[0]))
-
-/* Support an optional handler after and ASSERT_* or EXPECT_*.  The approach is
- * not thread-safe, but it should be fine in most sane test scenarios.
- *
- * Using __bail(), which optionally abort()s, is the easiest way to early
- * return while still providing an optional block to the API consumer.
- */
-#define OPTIONAL_HANDLER(_assert) \
-	for (; _metadata->trigger;  _metadata->trigger = __bail(_assert))
-
-#define __EXPECT(_expected, _seen, _t, _assert) do { \
-	/* Avoid multiple evaluation of the cases */ \
-	__typeof__(_expected) __exp = (_expected); \
-	__typeof__(_seen) __seen = (_seen); \
-	if (!(__exp _t __seen)) { \
-		unsigned long long __exp_print = 0; \
-		unsigned long long __seen_print = 0; \
-		/* Avoid casting complaints the scariest way we can. */ \
-		memcpy(&__exp_print, &__exp, sizeof(__exp)); \
-		memcpy(&__seen_print, &__seen, sizeof(__seen)); \
-		__TH_LOG("Expected %s (%llu) %s %s (%llu)", \
-			 #_expected, __exp_print, #_t, \
-			 #_seen, __seen_print); \
-		_metadata->passed = 0; \
-		/* Ensure the optional handler is triggered */ \
-		_metadata->trigger = 1; \
-	} \
-} while (0); OPTIONAL_HANDLER(_assert)
-
-#define __EXPECT_STR(_expected, _seen, _t, _assert) do { \
-	const char *__exp = (_expected); \
-	const char *__seen = (_seen); \
-	if (!(strcmp(__exp, __seen) _t 0))  { \
-		__TH_LOG("Expected '%s' %s '%s'.", __exp, #_t, __seen); \
-		_metadata->passed = 0; \
-		_metadata->trigger = 1; \
-	} \
-} while (0); OPTIONAL_HANDLER(_assert)
-
-/* Contains all the information for test execution and status checking. */
-struct __test_metadata {
-	const char *name;
-	void (*fn)(struct __test_metadata *);
-	int termsig;
-	int passed;
-	int trigger; /* extra handler after the evaluation */
-	struct __test_metadata *prev, *next;
-};
-
-/* Storage for the (global) tests to be run. */
-static struct __test_metadata *__test_list;
-static unsigned int __test_count;
-static unsigned int __fixture_count;
-static int __constructor_order;
-
-#define _CONSTRUCTOR_ORDER_FORWARD   1
-#define _CONSTRUCTOR_ORDER_BACKWARD -1
-
-/*
- * Since constructors are called in reverse order, reverse the test
- * list so tests are run in source declaration order.
- * https://gcc.gnu.org/onlinedocs/gccint/Initialization.html
- * However, it seems not all toolchains do this correctly, so use
- * __constructor_order to detect which direction is called first
- * and adjust list building logic to get things running in the right
- * direction.
- */
-static inline void __register_test(struct __test_metadata *t)
-{
-	__test_count++;
-	/* Circular linked list where only prev is circular. */
-	if (__test_list == NULL) {
-		__test_list = t;
-		t->next = NULL;
-		t->prev = t;
-		return;
-	}
-	if (__constructor_order == _CONSTRUCTOR_ORDER_FORWARD) {
-		t->next = NULL;
-		t->prev = __test_list->prev;
-		t->prev->next = t;
-		__test_list->prev = t;
-	} else {
-		t->next = __test_list;
-		t->next->prev = t;
-		t->prev = t;
-		__test_list = t;
-	}
-}
-
-static inline int __bail(int for_realz)
-{
-	if (for_realz)
-		abort();
-	return 0;
-}
-
-void __run_test(struct __test_metadata *t)
-{
-	pid_t child_pid;
-	int status;
-
-	t->passed = 1;
-	t->trigger = 0;
-	printf("[ RUN      ] %s\n", t->name);
-	child_pid = fork();
-	if (child_pid < 0) {
-		printf("ERROR SPAWNING TEST CHILD\n");
-		t->passed = 0;
-	} else if (child_pid == 0) {
-		t->fn(t);
-		_exit(t->passed);
-	} else {
-		/* TODO(wad) add timeout support. */
-		waitpid(child_pid, &status, 0);
-		if (WIFEXITED(status)) {
-			t->passed = t->termsig == -1 ? WEXITSTATUS(status) : 0;
-			if (t->termsig != -1) {
-				fprintf(TH_LOG_STREAM,
-					"%s: Test exited normally "
-					"instead of by signal (code: %d)\n",
-					t->name,
-					WEXITSTATUS(status));
-			}
-		} else if (WIFSIGNALED(status)) {
-			t->passed = 0;
-			if (WTERMSIG(status) == SIGABRT) {
-				fprintf(TH_LOG_STREAM,
-					"%s: Test terminated by assertion\n",
-					t->name);
-			} else if (WTERMSIG(status) == t->termsig) {
-				t->passed = 1;
-			} else {
-				fprintf(TH_LOG_STREAM,
-					"%s: Test terminated unexpectedly "
-					"by signal %d\n",
-					t->name,
-					WTERMSIG(status));
-			}
-		} else {
-			fprintf(TH_LOG_STREAM,
-				"%s: Test ended in some other way [%u]\n",
-				t->name,
-				status);
-		}
-	}
-	printf("[     %4s ] %s\n", (t->passed ? "OK" : "FAIL"), t->name);
-}
-
-static int test_harness_run(int __attribute__((unused)) argc,
-			    char __attribute__((unused)) **argv)
-{
-	struct __test_metadata *t;
-	int ret = 0;
-	unsigned int count = 0;
-	unsigned int pass_count = 0;
-
-	/* TODO(wad) add optional arguments similar to gtest. */
-	printf("[==========] Running %u tests from %u test cases.\n",
-	       __test_count, __fixture_count + 1);
-	for (t = __test_list; t; t = t->next) {
-		count++;
-		__run_test(t);
-		if (t->passed)
-			pass_count++;
-		else
-			ret = 1;
-	}
-	printf("[==========] %u / %u tests passed.\n", pass_count, count);
-	printf("[  %s  ]\n", (ret ? "FAILED" : "PASSED"));
-	return ret;
-}
-
-static void __attribute__((constructor)) __constructor_order_first(void)
-{
-	if (!__constructor_order)
-		__constructor_order = _CONSTRUCTOR_ORDER_FORWARD;
-}
-
-#endif  /* TEST_HARNESS_H_ */
diff --git a/tools/testing/selftests/sgx/.gitignore b/tools/testing/selftests/sgx/.gitignore
new file mode 100644
index 000000000000..fbaf0bda9a92
--- /dev/null
+++ b/tools/testing/selftests/sgx/.gitignore
@@ -0,0 +1,2 @@
+test_sgx
+test_encl.elf
diff --git a/tools/testing/selftests/sgx/Makefile b/tools/testing/selftests/sgx/Makefile
new file mode 100644
index 000000000000..03b5e13b872b
--- /dev/null
+++ b/tools/testing/selftests/sgx/Makefile
@@ -0,0 +1,60 @@
+top_srcdir = ../../../..
+
+include ../lib.mk
+
+.PHONY: all clean
+
+CAN_BUILD_X86_64 := $(shell ../x86/check_cc.sh "$(CC)" \
+			    ../x86/trivial_64bit_program.c)
+
+ifndef OBJCOPY
+OBJCOPY := $(CROSS_COMPILE)objcopy
+endif
+
+INCLUDES := -I$(top_srcdir)/tools/include
+HOST_CFLAGS := -Wall -Werror -g $(INCLUDES) -fPIC $(CFLAGS)
+HOST_LDFLAGS := -z noexecstack -lcrypto
+ENCL_CFLAGS += -Wall -Werror -static-pie -nostdlib -ffreestanding -fPIE \
+	       -fno-stack-protector -mrdrnd $(INCLUDES)
+ENCL_LDFLAGS := -Wl,-T,test_encl.lds,--build-id=none
+
+ifeq ($(CAN_BUILD_X86_64), 1)
+TEST_CUSTOM_PROGS := $(OUTPUT)/test_sgx
+TEST_FILES := $(OUTPUT)/test_encl.elf
+
+all: $(TEST_CUSTOM_PROGS) $(OUTPUT)/test_encl.elf
+endif
+
+$(OUTPUT)/test_sgx: $(OUTPUT)/main.o \
+		    $(OUTPUT)/load.o \
+		    $(OUTPUT)/sigstruct.o \
+		    $(OUTPUT)/call.o \
+		    $(OUTPUT)/sign_key.o
+	$(CC) $(HOST_CFLAGS) -o $@ $^ $(HOST_LDFLAGS)
+
+$(OUTPUT)/main.o: main.c
+	$(CC) $(HOST_CFLAGS) -c $< -o $@
+
+$(OUTPUT)/load.o: load.c
+	$(CC) $(HOST_CFLAGS) -c $< -o $@
+
+$(OUTPUT)/sigstruct.o: sigstruct.c
+	$(CC) $(HOST_CFLAGS) -c $< -o $@
+
+$(OUTPUT)/call.o: call.S
+	$(CC) $(HOST_CFLAGS) -c $< -o $@
+
+$(OUTPUT)/sign_key.o: sign_key.S
+	$(CC) $(HOST_CFLAGS) -c $< -o $@
+
+$(OUTPUT)/test_encl.elf: test_encl.c test_encl_bootstrap.S
+	$(CC) $(ENCL_CFLAGS) $^ -o $@ $(ENCL_LDFLAGS)
+
+EXTRA_CLEAN := \
+	$(OUTPUT)/test_encl.elf \
+	$(OUTPUT)/load.o \
+	$(OUTPUT)/call.o \
+	$(OUTPUT)/main.o \
+	$(OUTPUT)/sigstruct.o \
+	$(OUTPUT)/test_sgx \
+	$(OUTPUT)/test_sgx.o \
diff --git a/tools/testing/selftests/sgx/call.S b/tools/testing/selftests/sgx/call.S
new file mode 100644
index 000000000000..b09a25890f3b
--- /dev/null
+++ b/tools/testing/selftests/sgx/call.S
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/**
+* Copyright(c) 2016-20 Intel Corporation.
+*/
+
+	.text
+
+	.global sgx_enter_enclave
+sgx_enter_enclave:
+	.cfi_startproc
+	push	%r15
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r15, 0
+	push	%r14
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r14, 0
+	push	%r13
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r13, 0
+	push	%r12
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%r12, 0
+	push	%rbx
+	.cfi_adjust_cfa_offset	8
+	.cfi_rel_offset		%rbx, 0
+	push	$0
+	.cfi_adjust_cfa_offset	8
+	push	0x38(%rsp)
+	.cfi_adjust_cfa_offset	8
+	call	*vdso_sgx_enter_enclave(%rip)
+	add	$0x10, %rsp
+	.cfi_adjust_cfa_offset	-0x10
+	pop	%rbx
+	.cfi_adjust_cfa_offset	-8
+	pop	%r12
+	.cfi_adjust_cfa_offset	-8
+	pop	%r13
+	.cfi_adjust_cfa_offset	-8
+	pop	%r14
+	.cfi_adjust_cfa_offset	-8
+	pop	%r15
+	.cfi_adjust_cfa_offset	-8
+	ret
+	.cfi_endproc
diff --git a/tools/testing/selftests/sgx/defines.h b/tools/testing/selftests/sgx/defines.h
new file mode 100644
index 000000000000..402f8787a71c
--- /dev/null
+++ b/tools/testing/selftests/sgx/defines.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright(c) 2016-20 Intel Corporation.
+ */
+
+#ifndef DEFINES_H
+#define DEFINES_H
+
+#include <stdint.h>
+
+#define PAGE_SIZE 4096
+#define PAGE_MASK (~(PAGE_SIZE - 1))
+
+#define __aligned(x) __attribute__((__aligned__(x)))
+#define __packed __attribute__((packed))
+#define __used __attribute__((used))
+#define __section(x)__attribute__((__section__(x)))
+
+#include "../../../../arch/x86/include/asm/sgx.h"
+#include "../../../../arch/x86/include/asm/enclu.h"
+#include "../../../../arch/x86/include/uapi/asm/sgx.h"
+
+enum encl_op_type {
+	ENCL_OP_PUT_TO_BUFFER,
+	ENCL_OP_GET_FROM_BUFFER,
+	ENCL_OP_PUT_TO_ADDRESS,
+	ENCL_OP_GET_FROM_ADDRESS,
+	ENCL_OP_NOP,
+	ENCL_OP_EACCEPT,
+	ENCL_OP_EMODPE,
+	ENCL_OP_INIT_TCS_PAGE,
+	ENCL_OP_MAX,
+};
+
+struct encl_op_header {
+	uint64_t type;
+};
+
+struct encl_op_put_to_buf {
+	struct encl_op_header header;
+	uint64_t value;
+};
+
+struct encl_op_get_from_buf {
+	struct encl_op_header header;
+	uint64_t value;
+};
+
+struct encl_op_put_to_addr {
+	struct encl_op_header header;
+	uint64_t value;
+	uint64_t addr;
+};
+
+struct encl_op_get_from_addr {
+	struct encl_op_header header;
+	uint64_t value;
+	uint64_t addr;
+};
+
+struct encl_op_eaccept {
+	struct encl_op_header header;
+	uint64_t epc_addr;
+	uint64_t flags;
+	uint64_t ret;
+};
+
+struct encl_op_emodpe {
+	struct encl_op_header header;
+	uint64_t epc_addr;
+	uint64_t flags;
+};
+
+struct encl_op_init_tcs_page {
+	struct encl_op_header header;
+	uint64_t tcs_page;
+	uint64_t ssa;
+	uint64_t entry;
+};
+
+#endif /* DEFINES_H */
diff --git a/tools/testing/selftests/sgx/load.c b/tools/testing/selftests/sgx/load.c
new file mode 100644
index 000000000000..c9f658e44de6
--- /dev/null
+++ b/tools/testing/selftests/sgx/load.c
@@ -0,0 +1,370 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  Copyright(c) 2016-20 Intel Corporation. */
+
+#include <assert.h>
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include "defines.h"
+#include "main.h"
+
+void encl_delete(struct encl *encl)
+{
+	struct encl_segment *heap_seg;
+
+	if (encl->encl_base)
+		munmap((void *)encl->encl_base, encl->encl_size);
+
+	if (encl->bin)
+		munmap(encl->bin, encl->bin_size);
+
+	if (encl->fd)
+		close(encl->fd);
+
+	if (encl->segment_tbl) {
+		heap_seg = &encl->segment_tbl[encl->nr_segments - 1];
+		munmap(heap_seg->src, heap_seg->size);
+		free(encl->segment_tbl);
+	}
+
+	memset(encl, 0, sizeof(*encl));
+}
+
+static bool encl_map_bin(const char *path, struct encl *encl)
+{
+	struct stat sb;
+	void *bin;
+	int ret;
+	int fd;
+
+	fd = open(path, O_RDONLY);
+	if (fd == -1)  {
+		perror("enclave executable open()");
+		return false;
+	}
+
+	ret = stat(path, &sb);
+	if (ret) {
+		perror("enclave executable stat()");
+		goto err;
+	}
+
+	bin = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (bin == MAP_FAILED) {
+		perror("enclave executable mmap()");
+		goto err;
+	}
+
+	encl->bin = bin;
+	encl->bin_size = sb.st_size;
+
+	close(fd);
+	return true;
+
+err:
+	close(fd);
+	return false;
+}
+
+static bool encl_ioc_create(struct encl *encl)
+{
+	struct sgx_secs *secs = &encl->secs;
+	struct sgx_enclave_create ioc;
+	int rc;
+
+	assert(encl->encl_base != 0);
+
+	memset(secs, 0, sizeof(*secs));
+	secs->ssa_frame_size = 1;
+	secs->attributes = SGX_ATTR_MODE64BIT;
+	secs->xfrm = 3;
+	secs->base = encl->encl_base;
+	secs->size = encl->encl_size;
+
+	ioc.src = (unsigned long)secs;
+	rc = ioctl(encl->fd, SGX_IOC_ENCLAVE_CREATE, &ioc);
+	if (rc) {
+		perror("SGX_IOC_ENCLAVE_CREATE failed");
+		munmap((void *)secs->base, encl->encl_size);
+		return false;
+	}
+
+	return true;
+}
+
+static bool encl_ioc_add_pages(struct encl *encl, struct encl_segment *seg)
+{
+	struct sgx_enclave_add_pages ioc;
+	struct sgx_secinfo secinfo;
+	int rc;
+
+	memset(&secinfo, 0, sizeof(secinfo));
+	secinfo.flags = seg->flags;
+
+	ioc.src = (uint64_t)seg->src;
+	ioc.offset = seg->offset;
+	ioc.length = seg->size;
+	ioc.secinfo = (unsigned long)&secinfo;
+	if (seg->measure)
+		ioc.flags = SGX_PAGE_MEASURE;
+	else
+		ioc.flags = 0;
+
+	rc = ioctl(encl->fd, SGX_IOC_ENCLAVE_ADD_PAGES, &ioc);
+	if (rc < 0) {
+		perror("SGX_IOC_ENCLAVE_ADD_PAGES failed");
+		return false;
+	}
+
+	return true;
+}
+
+/*
+ * Parse the enclave code's symbol table to locate and return address of
+ * the provided symbol
+ */
+uint64_t encl_get_entry(struct encl *encl, const char *symbol)
+{
+	Elf64_Sym *symtab = NULL;
+	char *sym_names = NULL;
+	Elf64_Shdr *sections;
+	Elf64_Ehdr *ehdr;
+	int num_sym = 0;
+	int i;
+
+	ehdr = encl->bin;
+	sections = encl->bin + ehdr->e_shoff;
+
+	for (i = 0; i < ehdr->e_shnum; i++) {
+		if (sections[i].sh_type == SHT_SYMTAB) {
+			symtab = (Elf64_Sym *)((char *)encl->bin + sections[i].sh_offset);
+			num_sym = sections[i].sh_size / sections[i].sh_entsize;
+			break;
+		}
+	}
+
+	for (i = 0; i < ehdr->e_shnum; i++) {
+		if (sections[i].sh_type == SHT_STRTAB) {
+			sym_names = (char *)encl->bin + sections[i].sh_offset;
+			break;
+		}
+	}
+
+	if (!symtab || !sym_names)
+		return 0;
+
+	for (i = 0; i < num_sym; i++) {
+		Elf64_Sym *sym = &symtab[i];
+
+		if (!strcmp(symbol, sym_names + sym->st_name))
+			return (uint64_t)sym->st_value;
+	}
+
+	return 0;
+}
+
+bool encl_load(const char *path, struct encl *encl, unsigned long heap_size)
+{
+	const char device_path[] = "/dev/sgx_enclave";
+	struct encl_segment *seg;
+	Elf64_Phdr *phdr_tbl;
+	off_t src_offset;
+	Elf64_Ehdr *ehdr;
+	struct stat sb;
+	void *ptr;
+	int i, j;
+	int ret;
+	int fd = -1;
+
+	memset(encl, 0, sizeof(*encl));
+
+	fd = open(device_path, O_RDWR);
+	if (fd < 0) {
+		perror("Unable to open /dev/sgx_enclave");
+		goto err;
+	}
+
+	ret = stat(device_path, &sb);
+	if (ret) {
+		perror("device file stat()");
+		goto err;
+	}
+
+	ptr = mmap(NULL, PAGE_SIZE, PROT_READ, MAP_SHARED, fd, 0);
+	if (ptr == (void *)-1) {
+		perror("mmap for read");
+		goto err;
+	}
+	munmap(ptr, PAGE_SIZE);
+
+#define ERR_MSG \
+"mmap() succeeded for PROT_READ, but failed for PROT_EXEC.\n" \
+" Check that /dev does not have noexec set:\n" \
+" \tmount | grep \"/dev .*noexec\"\n" \
+" If so, remount it executable: mount -o remount,exec /dev\n\n"
+
+	ptr = mmap(NULL, PAGE_SIZE, PROT_EXEC, MAP_SHARED, fd, 0);
+	if (ptr == (void *)-1) {
+		fprintf(stderr, ERR_MSG);
+		goto err;
+	}
+	munmap(ptr, PAGE_SIZE);
+
+	encl->fd = fd;
+
+	if (!encl_map_bin(path, encl))
+		goto err;
+
+	ehdr = encl->bin;
+	phdr_tbl = encl->bin + ehdr->e_phoff;
+
+	encl->nr_segments = 1; /* one for the heap */
+
+	for (i = 0; i < ehdr->e_phnum; i++) {
+		Elf64_Phdr *phdr = &phdr_tbl[i];
+
+		if (phdr->p_type == PT_LOAD)
+			encl->nr_segments++;
+	}
+
+	encl->segment_tbl = calloc(encl->nr_segments,
+				   sizeof(struct encl_segment));
+	if (!encl->segment_tbl)
+		goto err;
+
+	for (i = 0, j = 0; i < ehdr->e_phnum; i++) {
+		Elf64_Phdr *phdr = &phdr_tbl[i];
+		unsigned int flags = phdr->p_flags;
+
+		if (phdr->p_type != PT_LOAD)
+			continue;
+
+		seg = &encl->segment_tbl[j];
+
+		if (!!(flags & ~(PF_R | PF_W | PF_X))) {
+			fprintf(stderr,
+				"%d has invalid segment flags 0x%02x.\n", i,
+				phdr->p_flags);
+			goto err;
+		}
+
+		if (j == 0 && flags != (PF_R | PF_W)) {
+			fprintf(stderr,
+				"TCS has invalid segment flags 0x%02x.\n",
+				phdr->p_flags);
+			goto err;
+		}
+
+		if (j == 0) {
+			src_offset = phdr->p_offset & PAGE_MASK;
+			encl->src = encl->bin + src_offset;
+
+			seg->prot = PROT_READ | PROT_WRITE;
+			seg->flags = SGX_PAGE_TYPE_TCS << 8;
+		} else  {
+			seg->prot = (phdr->p_flags & PF_R) ? PROT_READ : 0;
+			seg->prot |= (phdr->p_flags & PF_W) ? PROT_WRITE : 0;
+			seg->prot |= (phdr->p_flags & PF_X) ? PROT_EXEC : 0;
+			seg->flags = (SGX_PAGE_TYPE_REG << 8) | seg->prot;
+		}
+
+		seg->offset = (phdr->p_offset & PAGE_MASK) - src_offset;
+		seg->size = (phdr->p_filesz + PAGE_SIZE - 1) & PAGE_MASK;
+		seg->src = encl->src + seg->offset;
+		seg->measure = true;
+
+		j++;
+	}
+
+	assert(j == encl->nr_segments - 1);
+
+	seg = &encl->segment_tbl[j];
+	seg->offset =  encl->segment_tbl[j - 1].offset + encl->segment_tbl[j - 1].size;
+	seg->size = heap_size;
+	seg->src = mmap(NULL, heap_size, PROT_READ | PROT_WRITE,
+			MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	seg->prot = PROT_READ | PROT_WRITE;
+	seg->flags = (SGX_PAGE_TYPE_REG << 8) | seg->prot;
+	seg->measure = false;
+
+	if (seg->src == MAP_FAILED)
+		goto err;
+
+	encl->src_size = encl->segment_tbl[j].offset + encl->segment_tbl[j].size;
+
+	for (encl->encl_size = 4096; encl->encl_size < encl->src_size; )
+		encl->encl_size <<= 1;
+
+	return true;
+
+err:
+	if (fd != -1)
+		close(fd);
+	encl_delete(encl);
+	return false;
+}
+
+static bool encl_map_area(struct encl *encl)
+{
+	size_t encl_size = encl->encl_size;
+	void *area;
+
+	area = mmap(NULL, encl_size * 2, PROT_NONE,
+		    MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+	if (area == MAP_FAILED) {
+		perror("reservation mmap()");
+		return false;
+	}
+
+	encl->encl_base = ((uint64_t)area + encl_size - 1) & ~(encl_size - 1);
+
+	munmap(area, encl->encl_base - (uint64_t)area);
+	munmap((void *)(encl->encl_base + encl_size),
+	       (uint64_t)area + encl_size - encl->encl_base);
+
+	return true;
+}
+
+bool encl_build(struct encl *encl)
+{
+	struct sgx_enclave_init ioc;
+	int ret;
+	int i;
+
+	if (!encl_map_area(encl))
+		return false;
+
+	if (!encl_ioc_create(encl))
+		return false;
+
+	/*
+	 * Pages must be added before mapping VMAs because their permissions
+	 * cap the VMA permissions.
+	 */
+	for (i = 0; i < encl->nr_segments; i++) {
+		struct encl_segment *seg = &encl->segment_tbl[i];
+
+		if (!encl_ioc_add_pages(encl, seg))
+			return false;
+	}
+
+	ioc.sigstruct = (uint64_t)&encl->sigstruct;
+	ret = ioctl(encl->fd, SGX_IOC_ENCLAVE_INIT, &ioc);
+	if (ret) {
+		perror("SGX_IOC_ENCLAVE_INIT failed");
+		return false;
+	}
+
+	return true;
+}
diff --git a/tools/testing/selftests/sgx/main.c b/tools/testing/selftests/sgx/main.c
new file mode 100644
index 000000000000..13b84e54ce38
--- /dev/null
+++ b/tools/testing/selftests/sgx/main.c
@@ -0,0 +1,1993 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  Copyright(c) 2016-20 Intel Corporation. */
+
+#include <cpuid.h>
+#include <elf.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/auxv.h>
+#include "defines.h"
+#include "kselftest_harness.h"
+#include "main.h"
+
+static const uint64_t MAGIC = 0x1122334455667788ULL;
+static const uint64_t MAGIC2 = 0x8877665544332211ULL;
+vdso_sgx_enter_enclave_t vdso_sgx_enter_enclave;
+
+/*
+ * Security Information (SECINFO) data structure needed by a few SGX
+ * instructions (eg. ENCLU[EACCEPT] and ENCLU[EMODPE]) holds meta-data
+ * about an enclave page. &enum sgx_secinfo_page_state specifies the
+ * secinfo flags used for page state.
+ */
+enum sgx_secinfo_page_state {
+	SGX_SECINFO_PENDING = (1 << 3),
+	SGX_SECINFO_MODIFIED = (1 << 4),
+	SGX_SECINFO_PR = (1 << 5),
+};
+
+struct vdso_symtab {
+	Elf64_Sym *elf_symtab;
+	const char *elf_symstrtab;
+	Elf64_Word *elf_hashtab;
+};
+
+static Elf64_Dyn *vdso_get_dyntab(void *addr)
+{
+	Elf64_Ehdr *ehdr = addr;
+	Elf64_Phdr *phdrtab = addr + ehdr->e_phoff;
+	int i;
+
+	for (i = 0; i < ehdr->e_phnum; i++)
+		if (phdrtab[i].p_type == PT_DYNAMIC)
+			return addr + phdrtab[i].p_offset;
+
+	return NULL;
+}
+
+static void *vdso_get_dyn(void *addr, Elf64_Dyn *dyntab, Elf64_Sxword tag)
+{
+	int i;
+
+	for (i = 0; dyntab[i].d_tag != DT_NULL; i++)
+		if (dyntab[i].d_tag == tag)
+			return addr + dyntab[i].d_un.d_ptr;
+
+	return NULL;
+}
+
+static bool vdso_get_symtab(void *addr, struct vdso_symtab *symtab)
+{
+	Elf64_Dyn *dyntab = vdso_get_dyntab(addr);
+
+	symtab->elf_symtab = vdso_get_dyn(addr, dyntab, DT_SYMTAB);
+	if (!symtab->elf_symtab)
+		return false;
+
+	symtab->elf_symstrtab = vdso_get_dyn(addr, dyntab, DT_STRTAB);
+	if (!symtab->elf_symstrtab)
+		return false;
+
+	symtab->elf_hashtab = vdso_get_dyn(addr, dyntab, DT_HASH);
+	if (!symtab->elf_hashtab)
+		return false;
+
+	return true;
+}
+
+static inline int sgx2_supported(void)
+{
+	unsigned int eax, ebx, ecx, edx;
+
+	__cpuid_count(SGX_CPUID, 0x0, eax, ebx, ecx, edx);
+
+	return eax & 0x2;
+}
+
+static unsigned long elf_sym_hash(const char *name)
+{
+	unsigned long h = 0, high;
+
+	while (*name) {
+		h = (h << 4) + *name++;
+		high = h & 0xf0000000;
+
+		if (high)
+			h ^= high >> 24;
+
+		h &= ~high;
+	}
+
+	return h;
+}
+
+static Elf64_Sym *vdso_symtab_get(struct vdso_symtab *symtab, const char *name)
+{
+	Elf64_Word bucketnum = symtab->elf_hashtab[0];
+	Elf64_Word *buckettab = &symtab->elf_hashtab[2];
+	Elf64_Word *chaintab = &symtab->elf_hashtab[2 + bucketnum];
+	Elf64_Sym *sym;
+	Elf64_Word i;
+
+	for (i = buckettab[elf_sym_hash(name) % bucketnum]; i != STN_UNDEF;
+	     i = chaintab[i]) {
+		sym = &symtab->elf_symtab[i];
+		if (!strcmp(name, &symtab->elf_symstrtab[sym->st_name]))
+			return sym;
+	}
+
+	return NULL;
+}
+
+/*
+ * Return the offset in the enclave where the TCS segment can be found.
+ * The first RW segment loaded is the TCS.
+ */
+static off_t encl_get_tcs_offset(struct encl *encl)
+{
+	int i;
+
+	for (i = 0; i < encl->nr_segments; i++) {
+		struct encl_segment *seg = &encl->segment_tbl[i];
+
+		if (i == 0 && seg->prot == (PROT_READ | PROT_WRITE))
+			return seg->offset;
+	}
+
+	return -1;
+}
+
+/*
+ * Return the offset in the enclave where the data segment can be found.
+ * The first RW segment loaded is the TCS, skip that to get info on the
+ * data segment.
+ */
+static off_t encl_get_data_offset(struct encl *encl)
+{
+	int i;
+
+	for (i = 1; i < encl->nr_segments; i++) {
+		struct encl_segment *seg = &encl->segment_tbl[i];
+
+		if (seg->prot == (PROT_READ | PROT_WRITE))
+			return seg->offset;
+	}
+
+	return -1;
+}
+
+FIXTURE(enclave) {
+	struct encl encl;
+	struct sgx_enclave_run run;
+};
+
+static bool setup_test_encl(unsigned long heap_size, struct encl *encl,
+			    struct __test_metadata *_metadata)
+{
+	Elf64_Sym *sgx_enter_enclave_sym = NULL;
+	struct vdso_symtab symtab;
+	struct encl_segment *seg;
+	char maps_line[256];
+	FILE *maps_file;
+	unsigned int i;
+	void *addr;
+
+	if (!encl_load("test_encl.elf", encl, heap_size)) {
+		encl_delete(encl);
+		TH_LOG("Failed to load the test enclave.");
+		return false;
+	}
+
+	if (!encl_measure(encl))
+		goto err;
+
+	if (!encl_build(encl))
+		goto err;
+
+	/*
+	 * An enclave consumer only must do this.
+	 */
+	for (i = 0; i < encl->nr_segments; i++) {
+		struct encl_segment *seg = &encl->segment_tbl[i];
+
+		addr = mmap((void *)encl->encl_base + seg->offset, seg->size,
+			    seg->prot, MAP_SHARED | MAP_FIXED, encl->fd, 0);
+		EXPECT_NE(addr, MAP_FAILED);
+		if (addr == MAP_FAILED)
+			goto err;
+	}
+
+	/* Get vDSO base address */
+	addr = (void *)getauxval(AT_SYSINFO_EHDR);
+	if (!addr)
+		goto err;
+
+	if (!vdso_get_symtab(addr, &symtab))
+		goto err;
+
+	sgx_enter_enclave_sym = vdso_symtab_get(&symtab, "__vdso_sgx_enter_enclave");
+	if (!sgx_enter_enclave_sym)
+		goto err;
+
+	vdso_sgx_enter_enclave = addr + sgx_enter_enclave_sym->st_value;
+
+	return true;
+
+err:
+	for (i = 0; i < encl->nr_segments; i++) {
+		seg = &encl->segment_tbl[i];
+
+		TH_LOG("0x%016lx 0x%016lx 0x%02x", seg->offset, seg->size, seg->prot);
+	}
+
+	maps_file = fopen("/proc/self/maps", "r");
+	if (maps_file != NULL)  {
+		while (fgets(maps_line, sizeof(maps_line), maps_file) != NULL) {
+			maps_line[strlen(maps_line) - 1] = '\0';
+
+			if (strstr(maps_line, "/dev/sgx_enclave"))
+				TH_LOG("%s", maps_line);
+		}
+
+		fclose(maps_file);
+	}
+
+	TH_LOG("Failed to initialize the test enclave.");
+
+	encl_delete(encl);
+
+	return false;
+}
+
+FIXTURE_SETUP(enclave)
+{
+}
+
+FIXTURE_TEARDOWN(enclave)
+{
+	encl_delete(&self->encl);
+}
+
+#define ENCL_CALL(op, run, clobbered) \
+	({ \
+		int ret; \
+		if ((clobbered)) \
+			ret = vdso_sgx_enter_enclave((unsigned long)(op), 0, 0, \
+						     EENTER, 0, 0, (run)); \
+		else \
+			ret = sgx_enter_enclave((void *)(op), NULL, 0, EENTER, NULL, NULL, \
+						(run)); \
+		ret; \
+	})
+
+#define EXPECT_EEXIT(run) \
+	do { \
+		EXPECT_EQ((run)->function, EEXIT); \
+		if ((run)->function != EEXIT) \
+			TH_LOG("0x%02x 0x%02x 0x%016llx", (run)->exception_vector, \
+			       (run)->exception_error_code, (run)->exception_addr); \
+	} while (0)
+
+TEST_F(enclave, unclobbered_vdso)
+{
+	struct encl_op_get_from_buf get_op;
+	struct encl_op_put_to_buf put_op;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0);
+
+	EXPECT_EQ(get_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+}
+
+/*
+ * A section metric is concatenated in a way that @low bits 12-31 define the
+ * bits 12-31 of the metric and @high bits 0-19 define the bits 32-51 of the
+ * metric.
+ */
+static unsigned long sgx_calc_section_metric(unsigned int low,
+					     unsigned int high)
+{
+	return (low & GENMASK_ULL(31, 12)) +
+	       ((high & GENMASK_ULL(19, 0)) << 32);
+}
+
+/*
+ * Sum total available physical SGX memory across all EPC sections
+ *
+ * Return: total available physical SGX memory available on system
+ */
+static unsigned long get_total_epc_mem(void)
+{
+	unsigned int eax, ebx, ecx, edx;
+	unsigned long total_size = 0;
+	unsigned int type;
+	int section = 0;
+
+	while (true) {
+		__cpuid_count(SGX_CPUID, section + SGX_CPUID_EPC, eax, ebx, ecx, edx);
+
+		type = eax & SGX_CPUID_EPC_MASK;
+		if (type == SGX_CPUID_EPC_INVALID)
+			break;
+
+		if (type != SGX_CPUID_EPC_SECTION)
+			break;
+
+		total_size += sgx_calc_section_metric(ecx, edx);
+
+		section++;
+	}
+
+	return total_size;
+}
+
+TEST_F(enclave, unclobbered_vdso_oversubscribed)
+{
+	struct encl_op_get_from_buf get_op;
+	struct encl_op_put_to_buf put_op;
+	unsigned long total_mem;
+
+	total_mem = get_total_epc_mem();
+	ASSERT_NE(total_mem, 0);
+	ASSERT_TRUE(setup_test_encl(total_mem, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0);
+
+	EXPECT_EQ(get_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+}
+
+TEST_F_TIMEOUT(enclave, unclobbered_vdso_oversubscribed_remove, 900)
+{
+	struct sgx_enclave_remove_pages remove_ioc;
+	struct sgx_enclave_modify_types modt_ioc;
+	struct encl_op_get_from_buf get_op;
+	struct encl_op_eaccept eaccept_op;
+	struct encl_op_put_to_buf put_op;
+	struct encl_segment *heap;
+	unsigned long total_mem;
+	int ret, errno_save;
+	unsigned long addr;
+	unsigned long i;
+
+	/*
+	 * Create enclave with additional heap that is as big as all
+	 * available physical SGX memory.
+	 */
+	total_mem = get_total_epc_mem();
+	ASSERT_NE(total_mem, 0);
+	TH_LOG("Creating an enclave with %lu bytes heap may take a while ...",
+	       total_mem);
+	ASSERT_TRUE(setup_test_encl(total_mem, &self->encl, _metadata));
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/* SGX2 is supported by kernel and hardware, test can proceed. */
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	heap = &self->encl.segment_tbl[self->encl.nr_segments - 1];
+
+	put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_op, &self->run, false), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_op, &self->run, false), 0);
+
+	EXPECT_EQ(get_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	/* Trim entire heap. */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+
+	modt_ioc.offset = heap->offset;
+	modt_ioc.length = heap->size;
+	modt_ioc.page_type = SGX_PAGE_TYPE_TRIM;
+
+	TH_LOG("Changing type of %zd bytes to trimmed may take a while ...",
+	       heap->size);
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(modt_ioc.result, 0);
+	EXPECT_EQ(modt_ioc.count, heap->size);
+
+	/* EACCEPT all removed pages. */
+	addr = self->encl.encl_base + heap->offset;
+
+	eaccept_op.flags = SGX_SECINFO_TRIM | SGX_SECINFO_MODIFIED;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	TH_LOG("Entering enclave to run EACCEPT for each page of %zd bytes may take a while ...",
+	       heap->size);
+	for (i = 0; i < heap->size; i += 4096) {
+		eaccept_op.epc_addr = addr + i;
+		eaccept_op.ret = 0;
+
+		EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+		EXPECT_EQ(self->run.exception_vector, 0);
+		EXPECT_EQ(self->run.exception_error_code, 0);
+		EXPECT_EQ(self->run.exception_addr, 0);
+		ASSERT_EQ(eaccept_op.ret, 0);
+		ASSERT_EQ(self->run.function, EEXIT);
+	}
+
+	/* Complete page removal. */
+	memset(&remove_ioc, 0, sizeof(remove_ioc));
+
+	remove_ioc.offset = heap->offset;
+	remove_ioc.length = heap->size;
+
+	TH_LOG("Removing %zd bytes from enclave may take a while ...",
+	       heap->size);
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(remove_ioc.count, heap->size);
+}
+
+TEST_F(enclave, clobbered_vdso)
+{
+	struct encl_op_get_from_buf get_op;
+	struct encl_op_put_to_buf put_op;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+}
+
+static int test_handler(long rdi, long rsi, long rdx, long ursp, long r8, long r9,
+			struct sgx_enclave_run *run)
+{
+	run->user_data = 0;
+
+	return 0;
+}
+
+TEST_F(enclave, clobbered_vdso_and_user_function)
+{
+	struct encl_op_get_from_buf get_op;
+	struct encl_op_put_to_buf put_op;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	self->run.user_handler = (__u64)test_handler;
+	self->run.user_data = 0xdeadbeef;
+
+	put_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+
+	get_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+}
+
+/*
+ * Sanity check that it is possible to enter either of the two hardcoded TCS
+ */
+TEST_F(enclave, tcs_entry)
+{
+	struct encl_op_header op;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	op.type = ENCL_OP_NOP;
+
+	EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Move to the next TCS. */
+	self->run.tcs = self->encl.encl_base + PAGE_SIZE;
+
+	EXPECT_EQ(ENCL_CALL(&op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+}
+
+/*
+ * Second page of .data segment is used to test changing PTE permissions.
+ * This spans the local encl_buffer within the test enclave.
+ *
+ * 1) Start with a sanity check: a value is written to the target page within
+ *    the enclave and read back to ensure target page can be written to.
+ * 2) Change PTE permissions (RW -> RO) of target page within enclave.
+ * 3) Repeat (1) - this time expecting a regular #PF communicated via the
+ *    vDSO.
+ * 4) Change PTE permissions of target page within enclave back to be RW.
+ * 5) Repeat (1) by resuming enclave, now expected to be possible to write to
+ *    and read from target page within enclave.
+ */
+TEST_F(enclave, pte_permissions)
+{
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	unsigned long data_start;
+	int ret;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	data_start = self->encl.encl_base +
+		     encl_get_data_offset(&self->encl) +
+		     PAGE_SIZE;
+
+	/*
+	 * Sanity check to ensure it is possible to write to page that will
+	 * have its permissions manipulated.
+	 */
+
+	/* Write MAGIC to page */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = data_start;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory that was just written to, confirming that it is the
+	 * value previously written (MAGIC).
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = data_start;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Change PTE permissions of target page within the enclave */
+	ret = mprotect((void *)data_start, PAGE_SIZE, PROT_READ);
+	if (ret)
+		perror("mprotect");
+
+	/*
+	 * PTE permissions of target page changed to read-only, EPCM
+	 * permissions unchanged (EPCM permissions are RW), attempt to
+	 * write to the page, expecting a regular #PF.
+	 */
+
+	put_addr_op.value = MAGIC2;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(self->run.exception_vector, 14);
+	EXPECT_EQ(self->run.exception_error_code, 0x7);
+	EXPECT_EQ(self->run.exception_addr, data_start);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	/*
+	 * Change PTE permissions back to enable enclave to write to the
+	 * target page and resume enclave - do not expect any exceptions this
+	 * time.
+	 */
+	ret = mprotect((void *)data_start, PAGE_SIZE, PROT_READ | PROT_WRITE);
+	if (ret)
+		perror("mprotect");
+
+	EXPECT_EQ(vdso_sgx_enter_enclave((unsigned long)&put_addr_op, 0,
+					 0, ERESUME, 0, 0, &self->run),
+		 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	get_addr_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC2);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+}
+
+/*
+ * Modifying permissions of TCS page should not be possible.
+ */
+TEST_F(enclave, tcs_permissions)
+{
+	struct sgx_enclave_restrict_permissions ioc;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	memset(&ioc, 0, sizeof(ioc));
+
+	/*
+	 * Ensure kernel supports needed ioctl() and system supports needed
+	 * commands.
+	 */
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS, &ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	ASSERT_EQ(ret, -1);
+
+	/* ret == -1 */
+	if (errno_save == ENOTTY)
+		SKIP(return,
+		     "Kernel does not support SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS ioctl()");
+	else if (errno_save == ENODEV)
+		SKIP(return, "System does not support SGX2");
+
+	/*
+	 * Attempt to make TCS page read-only. This is not allowed and
+	 * should be prevented by the kernel.
+	 */
+	ioc.offset = encl_get_tcs_offset(&self->encl);
+	ioc.length = PAGE_SIZE;
+	ioc.permissions = SGX_SECINFO_R;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS, &ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno_save, EINVAL);
+	EXPECT_EQ(ioc.result, 0);
+	EXPECT_EQ(ioc.count, 0);
+}
+
+/*
+ * Enclave page permission test.
+ *
+ * Modify and restore enclave page's EPCM (enclave) permissions from
+ * outside enclave (ENCLS[EMODPR] via kernel) as well as from within
+ * enclave (via ENCLU[EMODPE]). Check for page fault if
+ * VMA allows access but EPCM permissions do not.
+ */
+TEST_F(enclave, epcm_permissions)
+{
+	struct sgx_enclave_restrict_permissions restrict_ioc;
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	struct encl_op_eaccept eaccept_op;
+	struct encl_op_emodpe emodpe_op;
+	unsigned long data_start;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Ensure kernel supports needed ioctl() and system supports needed
+	 * commands.
+	 */
+	memset(&restrict_ioc, 0, sizeof(restrict_ioc));
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS,
+		    &restrict_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	ASSERT_EQ(ret, -1);
+
+	/* ret == -1 */
+	if (errno_save == ENOTTY)
+		SKIP(return,
+		     "Kernel does not support SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS ioctl()");
+	else if (errno_save == ENODEV)
+		SKIP(return, "System does not support SGX2");
+
+	/*
+	 * Page that will have its permissions changed is the second data
+	 * page in the .data segment. This forms part of the local encl_buffer
+	 * within the enclave.
+	 *
+	 * At start of test @data_start should have EPCM as well as PTE and
+	 * VMA permissions of RW.
+	 */
+
+	data_start = self->encl.encl_base +
+		     encl_get_data_offset(&self->encl) + PAGE_SIZE;
+
+	/*
+	 * Sanity check that page at @data_start is writable before making
+	 * any changes to page permissions.
+	 *
+	 * Start by writing MAGIC to test page.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = data_start;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory that was just written to, confirming that
+	 * page is writable.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = data_start;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Change EPCM permissions to read-only. Kernel still considers
+	 * the page writable.
+	 */
+	memset(&restrict_ioc, 0, sizeof(restrict_ioc));
+
+	restrict_ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	restrict_ioc.length = PAGE_SIZE;
+	restrict_ioc.permissions = SGX_SECINFO_R;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS,
+		    &restrict_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(restrict_ioc.result, 0);
+	EXPECT_EQ(restrict_ioc.count, 4096);
+
+	/*
+	 * EPCM permissions changed from kernel, need to EACCEPT from enclave.
+	 */
+	eaccept_op.epc_addr = data_start;
+	eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_REG | SGX_SECINFO_PR;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/*
+	 * EPCM permissions of page is now read-only, expect #PF
+	 * on EPCM when attempting to write to page from within enclave.
+	 */
+	put_addr_op.value = MAGIC2;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(self->run.function, ERESUME);
+	EXPECT_EQ(self->run.exception_vector, 14);
+	EXPECT_EQ(self->run.exception_error_code, 0x8007);
+	EXPECT_EQ(self->run.exception_addr, data_start);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	/*
+	 * Received AEX but cannot return to enclave at same entrypoint,
+	 * need different TCS from where EPCM permission can be made writable
+	 * again.
+	 */
+	self->run.tcs = self->encl.encl_base + PAGE_SIZE;
+
+	/*
+	 * Enter enclave at new TCS to change EPCM permissions to be
+	 * writable again and thus fix the page fault that triggered the
+	 * AEX.
+	 */
+
+	emodpe_op.epc_addr = data_start;
+	emodpe_op.flags = SGX_SECINFO_R | SGX_SECINFO_W;
+	emodpe_op.header.type = ENCL_OP_EMODPE;
+
+	EXPECT_EQ(ENCL_CALL(&emodpe_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Attempt to return to main TCS to resume execution at faulting
+	 * instruction, PTE should continue to allow writing to the page.
+	 */
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Wrong page permissions that caused original fault has
+	 * now been fixed via EPCM permissions.
+	 * Resume execution in main TCS to re-attempt the memory access.
+	 */
+	self->run.tcs = self->encl.encl_base;
+
+	EXPECT_EQ(vdso_sgx_enter_enclave((unsigned long)&put_addr_op, 0, 0,
+					 ERESUME, 0, 0,
+					 &self->run),
+		  0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	get_addr_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC2);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.user_data, 0);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+}
+
+/*
+ * Test the addition of pages to an initialized enclave via writing to
+ * a page belonging to the enclave's address space but was not added
+ * during enclave creation.
+ */
+TEST_F(enclave, augment)
+{
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	struct encl_op_eaccept eaccept_op;
+	size_t total_size = 0;
+	void *addr;
+	int i;
+
+	if (!sgx2_supported())
+		SKIP(return, "SGX2 not supported");
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	for (i = 0; i < self->encl.nr_segments; i++) {
+		struct encl_segment *seg = &self->encl.segment_tbl[i];
+
+		total_size += seg->size;
+	}
+
+	/*
+	 * Actual enclave size is expected to be larger than the loaded
+	 * test enclave since enclave size must be a power of 2 in bytes
+	 * and test_encl does not consume it all.
+	 */
+	EXPECT_LT(total_size + PAGE_SIZE, self->encl.encl_size);
+
+	/*
+	 * Create memory mapping for the page that will be added. New
+	 * memory mapping is for one page right after all existing
+	 * mappings.
+	 * Kernel will allow new mapping using any permissions if it
+	 * falls into the enclave's address range but not backed
+	 * by existing enclave pages.
+	 */
+	addr = mmap((void *)self->encl.encl_base + total_size, PAGE_SIZE,
+		    PROT_READ | PROT_WRITE | PROT_EXEC,
+		    MAP_SHARED | MAP_FIXED, self->encl.fd, 0);
+	EXPECT_NE(addr, MAP_FAILED);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	/*
+	 * Attempt to write to the new page from within enclave.
+	 * Expected to fail since page is not (yet) part of the enclave.
+	 * The first #PF will trigger the addition of the page to the
+	 * enclave, but since the new page needs an EACCEPT from within the
+	 * enclave before it can be used it would not be possible
+	 * to successfully return to the failing instruction. This is the
+	 * cause of the second #PF captured here having the SGX bit set,
+	 * it is from hardware preventing the page from being used.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = (unsigned long)addr;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(self->run.function, ERESUME);
+	EXPECT_EQ(self->run.exception_vector, 14);
+	EXPECT_EQ(self->run.exception_addr, (unsigned long)addr);
+
+	if (self->run.exception_error_code == 0x6) {
+		munmap(addr, PAGE_SIZE);
+		SKIP(return, "Kernel does not support adding pages to initialized enclave");
+	}
+
+	EXPECT_EQ(self->run.exception_error_code, 0x8007);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	/* Handle AEX by running EACCEPT from new entry point. */
+	self->run.tcs = self->encl.encl_base + PAGE_SIZE;
+
+	eaccept_op.epc_addr = self->encl.encl_base + total_size;
+	eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_W | SGX_SECINFO_REG | SGX_SECINFO_PENDING;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/* Can now return to main TCS to resume execution. */
+	self->run.tcs = self->encl.encl_base;
+
+	EXPECT_EQ(vdso_sgx_enter_enclave((unsigned long)&put_addr_op, 0, 0,
+					 ERESUME, 0, 0,
+					 &self->run),
+		  0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory from newly added page that was just written to,
+	 * confirming that data previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = (unsigned long)addr;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	munmap(addr, PAGE_SIZE);
+}
+
+/*
+ * Test for the addition of pages to an initialized enclave via a
+ * pre-emptive run of EACCEPT on page to be added.
+ */
+TEST_F(enclave, augment_via_eaccept)
+{
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	struct encl_op_eaccept eaccept_op;
+	size_t total_size = 0;
+	void *addr;
+	int i;
+
+	if (!sgx2_supported())
+		SKIP(return, "SGX2 not supported");
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	for (i = 0; i < self->encl.nr_segments; i++) {
+		struct encl_segment *seg = &self->encl.segment_tbl[i];
+
+		total_size += seg->size;
+	}
+
+	/*
+	 * Actual enclave size is expected to be larger than the loaded
+	 * test enclave since enclave size must be a power of 2 in bytes while
+	 * test_encl does not consume it all.
+	 */
+	EXPECT_LT(total_size + PAGE_SIZE, self->encl.encl_size);
+
+	/*
+	 * mmap() a page at end of existing enclave to be used for dynamic
+	 * EPC page.
+	 *
+	 * Kernel will allow new mapping using any permissions if it
+	 * falls into the enclave's address range but not backed
+	 * by existing enclave pages.
+	 */
+
+	addr = mmap((void *)self->encl.encl_base + total_size, PAGE_SIZE,
+		    PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED | MAP_FIXED,
+		    self->encl.fd, 0);
+	EXPECT_NE(addr, MAP_FAILED);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	/*
+	 * Run EACCEPT on new page to trigger the #PF->EAUG->EACCEPT(again
+	 * without a #PF). All should be transparent to userspace.
+	 */
+	eaccept_op.epc_addr = self->encl.encl_base + total_size;
+	eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_W | SGX_SECINFO_REG | SGX_SECINFO_PENDING;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	if (self->run.exception_vector == 14 &&
+	    self->run.exception_error_code == 4 &&
+	    self->run.exception_addr == self->encl.encl_base + total_size) {
+		munmap(addr, PAGE_SIZE);
+		SKIP(return, "Kernel does not support adding pages to initialized enclave");
+	}
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/*
+	 * New page should be accessible from within enclave - attempt to
+	 * write to it.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = (unsigned long)addr;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory from newly added page that was just written to,
+	 * confirming that data previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = (unsigned long)addr;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	munmap(addr, PAGE_SIZE);
+}
+
+/*
+ * SGX2 page type modification test in two phases:
+ * Phase 1:
+ * Create a new TCS, consisting out of three new pages (stack page with regular
+ * page type, SSA page with regular page type, and TCS page with TCS page
+ * type) in an initialized enclave and run a simple workload within it.
+ * Phase 2:
+ * Remove the three pages added in phase 1, add a new regular page at the
+ * same address that previously hosted the TCS page and verify that it can
+ * be modified.
+ */
+TEST_F(enclave, tcs_create)
+{
+	struct encl_op_init_tcs_page init_tcs_page_op;
+	struct sgx_enclave_remove_pages remove_ioc;
+	struct encl_op_get_from_addr get_addr_op;
+	struct sgx_enclave_modify_types modt_ioc;
+	struct encl_op_put_to_addr put_addr_op;
+	struct encl_op_get_from_buf get_buf_op;
+	struct encl_op_put_to_buf put_buf_op;
+	void *addr, *tcs, *stack_end, *ssa;
+	struct encl_op_eaccept eaccept_op;
+	size_t total_size = 0;
+	uint64_t val_64;
+	int errno_save;
+	int ret, i;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl,
+				    _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/*
+	 * Add three regular pages via EAUG: one will be the TCS stack, one
+	 * will be the TCS SSA, and one will be the new TCS. The stack and
+	 * SSA will remain as regular pages, the TCS page will need its
+	 * type changed after populated with needed data.
+	 */
+	for (i = 0; i < self->encl.nr_segments; i++) {
+		struct encl_segment *seg = &self->encl.segment_tbl[i];
+
+		total_size += seg->size;
+	}
+
+	/*
+	 * Actual enclave size is expected to be larger than the loaded
+	 * test enclave since enclave size must be a power of 2 in bytes while
+	 * test_encl does not consume it all.
+	 */
+	EXPECT_LT(total_size + 3 * PAGE_SIZE, self->encl.encl_size);
+
+	/*
+	 * mmap() three pages at end of existing enclave to be used for the
+	 * three new pages.
+	 */
+	addr = mmap((void *)self->encl.encl_base + total_size, 3 * PAGE_SIZE,
+		    PROT_READ | PROT_WRITE, MAP_SHARED | MAP_FIXED,
+		    self->encl.fd, 0);
+	EXPECT_NE(addr, MAP_FAILED);
+
+	self->run.exception_vector = 0;
+	self->run.exception_error_code = 0;
+	self->run.exception_addr = 0;
+
+	stack_end = (void *)self->encl.encl_base + total_size;
+	tcs = (void *)self->encl.encl_base + total_size + PAGE_SIZE;
+	ssa = (void *)self->encl.encl_base + total_size + 2 * PAGE_SIZE;
+
+	/*
+	 * Run EACCEPT on each new page to trigger the
+	 * EACCEPT->(#PF)->EAUG->EACCEPT(again without a #PF) flow.
+	 */
+
+	eaccept_op.epc_addr = (unsigned long)stack_end;
+	eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_W | SGX_SECINFO_REG | SGX_SECINFO_PENDING;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	if (self->run.exception_vector == 14 &&
+	    self->run.exception_error_code == 4 &&
+	    self->run.exception_addr == (unsigned long)stack_end) {
+		munmap(addr, 3 * PAGE_SIZE);
+		SKIP(return, "Kernel does not support adding pages to initialized enclave");
+	}
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	eaccept_op.epc_addr = (unsigned long)ssa;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	eaccept_op.epc_addr = (unsigned long)tcs;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/*
+	 * Three new pages added to enclave. Now populate the TCS page with
+	 * needed data. This should be done from within enclave. Provide
+	 * the function that will do the actual data population with needed
+	 * data.
+	 */
+
+	/*
+	 * New TCS will use the "encl_dyn_entry" entrypoint that expects
+	 * stack to begin in page before TCS page.
+	 */
+	val_64 = encl_get_entry(&self->encl, "encl_dyn_entry");
+	EXPECT_NE(val_64, 0);
+
+	init_tcs_page_op.tcs_page = (unsigned long)tcs;
+	init_tcs_page_op.ssa = (unsigned long)total_size + 2 * PAGE_SIZE;
+	init_tcs_page_op.entry = val_64;
+	init_tcs_page_op.header.type = ENCL_OP_INIT_TCS_PAGE;
+
+	EXPECT_EQ(ENCL_CALL(&init_tcs_page_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Change TCS page type to TCS. */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+
+	modt_ioc.offset = total_size + PAGE_SIZE;
+	modt_ioc.length = PAGE_SIZE;
+	modt_ioc.page_type = SGX_PAGE_TYPE_TCS;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(modt_ioc.result, 0);
+	EXPECT_EQ(modt_ioc.count, 4096);
+
+	/* EACCEPT new TCS page from enclave. */
+	eaccept_op.epc_addr = (unsigned long)tcs;
+	eaccept_op.flags = SGX_SECINFO_TCS | SGX_SECINFO_MODIFIED;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/* Run workload from new TCS. */
+	self->run.tcs = (unsigned long)tcs;
+
+	/*
+	 * Simple workload to write to data buffer and read value back.
+	 */
+	put_buf_op.header.type = ENCL_OP_PUT_TO_BUFFER;
+	put_buf_op.value = MAGIC;
+
+	EXPECT_EQ(ENCL_CALL(&put_buf_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	get_buf_op.header.type = ENCL_OP_GET_FROM_BUFFER;
+	get_buf_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_buf_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_buf_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Phase 2 of test:
+	 * Remove pages associated with new TCS, create a regular page
+	 * where TCS page used to be and verify it can be used as a regular
+	 * page.
+	 */
+
+	/* Start page removal by requesting change of page type to PT_TRIM. */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+
+	modt_ioc.offset = total_size;
+	modt_ioc.length = 3 * PAGE_SIZE;
+	modt_ioc.page_type = SGX_PAGE_TYPE_TRIM;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(modt_ioc.result, 0);
+	EXPECT_EQ(modt_ioc.count, 3 * PAGE_SIZE);
+
+	/*
+	 * Enter enclave via TCS #1 and approve page removal by sending
+	 * EACCEPT for each of three removed pages.
+	 */
+	self->run.tcs = self->encl.encl_base;
+
+	eaccept_op.epc_addr = (unsigned long)stack_end;
+	eaccept_op.flags = SGX_SECINFO_TRIM | SGX_SECINFO_MODIFIED;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	eaccept_op.epc_addr = (unsigned long)tcs;
+	eaccept_op.ret = 0;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	eaccept_op.epc_addr = (unsigned long)ssa;
+	eaccept_op.ret = 0;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/* Send final ioctl() to complete page removal. */
+	memset(&remove_ioc, 0, sizeof(remove_ioc));
+
+	remove_ioc.offset = total_size;
+	remove_ioc.length = 3 * PAGE_SIZE;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(remove_ioc.count, 3 * PAGE_SIZE);
+
+	/*
+	 * Enter enclave via TCS #1 and access location where TCS #3 was to
+	 * trigger dynamic add of regular page at that location.
+	 */
+	eaccept_op.epc_addr = (unsigned long)tcs;
+	eaccept_op.flags = SGX_SECINFO_R | SGX_SECINFO_W | SGX_SECINFO_REG | SGX_SECINFO_PENDING;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/*
+	 * New page should be accessible from within enclave - write to it.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = (unsigned long)tcs;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory from newly added page that was just written to,
+	 * confirming that data previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = (unsigned long)tcs;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	munmap(addr, 3 * PAGE_SIZE);
+}
+
+/*
+ * Ensure sane behavior if user requests page removal, does not run
+ * EACCEPT from within enclave but still attempts to finalize page removal
+ * with the SGX_IOC_ENCLAVE_REMOVE_PAGES ioctl(). The latter should fail
+ * because the removal was not EACCEPTed from within the enclave.
+ */
+TEST_F(enclave, remove_added_page_no_eaccept)
+{
+	struct sgx_enclave_remove_pages remove_ioc;
+	struct encl_op_get_from_addr get_addr_op;
+	struct sgx_enclave_modify_types modt_ioc;
+	struct encl_op_put_to_addr put_addr_op;
+	unsigned long data_start;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/*
+	 * Page that will be removed is the second data page in the .data
+	 * segment. This forms part of the local encl_buffer within the
+	 * enclave.
+	 */
+	data_start = self->encl.encl_base +
+		     encl_get_data_offset(&self->encl) + PAGE_SIZE;
+
+	/*
+	 * Sanity check that page at @data_start is writable before
+	 * removing it.
+	 *
+	 * Start by writing MAGIC to test page.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = data_start;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory that was just written to, confirming that data
+	 * previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = data_start;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Start page removal by requesting change of page type to PT_TRIM */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+
+	modt_ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	modt_ioc.length = PAGE_SIZE;
+	modt_ioc.page_type = SGX_PAGE_TYPE_TRIM;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(modt_ioc.result, 0);
+	EXPECT_EQ(modt_ioc.count, 4096);
+
+	/* Skip EACCEPT */
+
+	/* Send final ioctl() to complete page removal */
+	memset(&remove_ioc, 0, sizeof(remove_ioc));
+
+	remove_ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	remove_ioc.length = PAGE_SIZE;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	/* Operation not permitted since EACCEPT was omitted. */
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno_save, EPERM);
+	EXPECT_EQ(remove_ioc.count, 0);
+}
+
+/*
+ * Request enclave page removal but instead of correctly following with
+ * EACCEPT a read attempt to page is made from within the enclave.
+ */
+TEST_F(enclave, remove_added_page_invalid_access)
+{
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	struct sgx_enclave_modify_types ioc;
+	unsigned long data_start;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&ioc, 0, sizeof(ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/*
+	 * Page that will be removed is the second data page in the .data
+	 * segment. This forms part of the local encl_buffer within the
+	 * enclave.
+	 */
+	data_start = self->encl.encl_base +
+		     encl_get_data_offset(&self->encl) + PAGE_SIZE;
+
+	/*
+	 * Sanity check that page at @data_start is writable before
+	 * removing it.
+	 *
+	 * Start by writing MAGIC to test page.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = data_start;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory that was just written to, confirming that data
+	 * previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = data_start;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Start page removal by requesting change of page type to PT_TRIM. */
+	memset(&ioc, 0, sizeof(ioc));
+
+	ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	ioc.length = PAGE_SIZE;
+	ioc.page_type = SGX_PAGE_TYPE_TRIM;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(ioc.result, 0);
+	EXPECT_EQ(ioc.count, 4096);
+
+	/*
+	 * Read from page that was just removed.
+	 */
+	get_addr_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	/*
+	 * From kernel perspective the page is present but according to SGX the
+	 * page should not be accessible so a #PF with SGX bit set is
+	 * expected.
+	 */
+
+	EXPECT_EQ(self->run.function, ERESUME);
+	EXPECT_EQ(self->run.exception_vector, 14);
+	EXPECT_EQ(self->run.exception_error_code, 0x8005);
+	EXPECT_EQ(self->run.exception_addr, data_start);
+}
+
+/*
+ * Request enclave page removal and correctly follow with
+ * EACCEPT but do not follow with removal ioctl() but instead a read attempt
+ * to removed page is made from within the enclave.
+ */
+TEST_F(enclave, remove_added_page_invalid_access_after_eaccept)
+{
+	struct encl_op_get_from_addr get_addr_op;
+	struct encl_op_put_to_addr put_addr_op;
+	struct sgx_enclave_modify_types ioc;
+	struct encl_op_eaccept eaccept_op;
+	unsigned long data_start;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&ioc, 0, sizeof(ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/*
+	 * Page that will be removed is the second data page in the .data
+	 * segment. This forms part of the local encl_buffer within the
+	 * enclave.
+	 */
+	data_start = self->encl.encl_base +
+		     encl_get_data_offset(&self->encl) + PAGE_SIZE;
+
+	/*
+	 * Sanity check that page at @data_start is writable before
+	 * removing it.
+	 *
+	 * Start by writing MAGIC to test page.
+	 */
+	put_addr_op.value = MAGIC;
+	put_addr_op.addr = data_start;
+	put_addr_op.header.type = ENCL_OP_PUT_TO_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&put_addr_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/*
+	 * Read memory that was just written to, confirming that data
+	 * previously written (MAGIC) is present.
+	 */
+	get_addr_op.value = 0;
+	get_addr_op.addr = data_start;
+	get_addr_op.header.type = ENCL_OP_GET_FROM_ADDRESS;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	EXPECT_EQ(get_addr_op.value, MAGIC);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+
+	/* Start page removal by requesting change of page type to PT_TRIM. */
+	memset(&ioc, 0, sizeof(ioc));
+
+	ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	ioc.length = PAGE_SIZE;
+	ioc.page_type = SGX_PAGE_TYPE_TRIM;
+
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(ioc.result, 0);
+	EXPECT_EQ(ioc.count, 4096);
+
+	eaccept_op.epc_addr = (unsigned long)data_start;
+	eaccept_op.ret = 0;
+	eaccept_op.flags = SGX_SECINFO_TRIM | SGX_SECINFO_MODIFIED;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	/* Skip ioctl() to remove page. */
+
+	/*
+	 * Read from page that was just removed.
+	 */
+	get_addr_op.value = 0;
+
+	EXPECT_EQ(ENCL_CALL(&get_addr_op, &self->run, true), 0);
+
+	/*
+	 * From kernel perspective the page is present but according to SGX the
+	 * page should not be accessible so a #PF with SGX bit set is
+	 * expected.
+	 */
+
+	EXPECT_EQ(self->run.function, ERESUME);
+	EXPECT_EQ(self->run.exception_vector, 14);
+	EXPECT_EQ(self->run.exception_error_code, 0x8005);
+	EXPECT_EQ(self->run.exception_addr, data_start);
+}
+
+TEST_F(enclave, remove_untouched_page)
+{
+	struct sgx_enclave_remove_pages remove_ioc;
+	struct sgx_enclave_modify_types modt_ioc;
+	struct encl_op_eaccept eaccept_op;
+	unsigned long data_start;
+	int ret, errno_save;
+
+	ASSERT_TRUE(setup_test_encl(ENCL_HEAP_SIZE_DEFAULT, &self->encl, _metadata));
+
+	/*
+	 * Hardware (SGX2) and kernel support is needed for this test. Start
+	 * with check that test has a chance of succeeding.
+	 */
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+
+	if (ret == -1) {
+		if (errno == ENOTTY)
+			SKIP(return,
+			     "Kernel does not support SGX_IOC_ENCLAVE_MODIFY_TYPES ioctl()");
+		else if (errno == ENODEV)
+			SKIP(return, "System does not support SGX2");
+	}
+
+	/*
+	 * Invalid parameters were provided during sanity check,
+	 * expect command to fail.
+	 */
+	EXPECT_EQ(ret, -1);
+
+	/* SGX2 is supported by kernel and hardware, test can proceed. */
+	memset(&self->run, 0, sizeof(self->run));
+	self->run.tcs = self->encl.encl_base;
+
+	data_start = self->encl.encl_base +
+			 encl_get_data_offset(&self->encl) + PAGE_SIZE;
+
+	memset(&modt_ioc, 0, sizeof(modt_ioc));
+
+	modt_ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	modt_ioc.length = PAGE_SIZE;
+	modt_ioc.page_type = SGX_PAGE_TYPE_TRIM;
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_MODIFY_TYPES, &modt_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(modt_ioc.result, 0);
+	EXPECT_EQ(modt_ioc.count, 4096);
+
+	/*
+	 * Enter enclave via TCS #1 and approve page removal by sending
+	 * EACCEPT for removed page.
+	 */
+
+	eaccept_op.epc_addr = data_start;
+	eaccept_op.flags = SGX_SECINFO_TRIM | SGX_SECINFO_MODIFIED;
+	eaccept_op.ret = 0;
+	eaccept_op.header.type = ENCL_OP_EACCEPT;
+
+	EXPECT_EQ(ENCL_CALL(&eaccept_op, &self->run, true), 0);
+	EXPECT_EEXIT(&self->run);
+	EXPECT_EQ(self->run.exception_vector, 0);
+	EXPECT_EQ(self->run.exception_error_code, 0);
+	EXPECT_EQ(self->run.exception_addr, 0);
+	EXPECT_EQ(eaccept_op.ret, 0);
+
+	memset(&remove_ioc, 0, sizeof(remove_ioc));
+
+	remove_ioc.offset = encl_get_data_offset(&self->encl) + PAGE_SIZE;
+	remove_ioc.length = PAGE_SIZE;
+	ret = ioctl(self->encl.fd, SGX_IOC_ENCLAVE_REMOVE_PAGES, &remove_ioc);
+	errno_save = ret == -1 ? errno : 0;
+
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(errno_save, 0);
+	EXPECT_EQ(remove_ioc.count, 4096);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/sgx/main.h b/tools/testing/selftests/sgx/main.h
new file mode 100644
index 000000000000..fc585be97e2f
--- /dev/null
+++ b/tools/testing/selftests/sgx/main.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright(c) 2016-20 Intel Corporation.
+ */
+
+#ifndef MAIN_H
+#define MAIN_H
+
+#define ENCL_HEAP_SIZE_DEFAULT	4096
+
+struct encl_segment {
+	void *src;
+	off_t offset;
+	size_t size;
+	unsigned int prot;
+	unsigned int flags;
+	bool measure;
+};
+
+struct encl {
+	int fd;
+	void *bin;
+	off_t bin_size;
+	void *src;
+	size_t src_size;
+	size_t encl_size;
+	off_t encl_base;
+	unsigned int nr_segments;
+	struct encl_segment *segment_tbl;
+	struct sgx_secs secs;
+	struct sgx_sigstruct sigstruct;
+};
+
+extern unsigned char sign_key[];
+extern unsigned char sign_key_end[];
+
+void encl_delete(struct encl *ctx);
+bool encl_load(const char *path, struct encl *encl, unsigned long heap_size);
+bool encl_measure(struct encl *encl);
+bool encl_build(struct encl *encl);
+uint64_t encl_get_entry(struct encl *encl, const char *symbol);
+
+int sgx_enter_enclave(void *rdi, void *rsi, long rdx, u32 function, void *r8, void *r9,
+		      struct sgx_enclave_run *run);
+
+#endif /* MAIN_H */
diff --git a/tools/testing/selftests/sgx/sign_key.S b/tools/testing/selftests/sgx/sign_key.S
new file mode 100644
index 000000000000..e4fbe948444a
--- /dev/null
+++ b/tools/testing/selftests/sgx/sign_key.S
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/**
+* Copyright(c) 2016-20 Intel Corporation.
+*/
+
+    .section ".rodata", "a"
+
+sign_key:
+    .globl sign_key
+    .incbin "sign_key.pem"
+sign_key_end:
+    .globl sign_key_end
diff --git a/tools/testing/selftests/sgx/sign_key.pem b/tools/testing/selftests/sgx/sign_key.pem
new file mode 100644
index 000000000000..d76f21f19187
--- /dev/null
+++ b/tools/testing/selftests/sgx/sign_key.pem
@@ -0,0 +1,39 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/tools/testing/selftests/sgx/sigstruct.c b/tools/testing/selftests/sgx/sigstruct.c
new file mode 100644
index 000000000000..d73b29becf5b
--- /dev/null
+++ b/tools/testing/selftests/sgx/sigstruct.c
@@ -0,0 +1,391 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  Copyright(c) 2016-20 Intel Corporation. */
+
+#define _GNU_SOURCE
+#include <assert.h>
+#include <getopt.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include "defines.h"
+#include "main.h"
+
+/*
+ * FIXME: OpenSSL 3.0 has deprecated some functions. For now just ignore
+ * the warnings.
+ */
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+
+struct q1q2_ctx {
+	BN_CTX *bn_ctx;
+	BIGNUM *m;
+	BIGNUM *s;
+	BIGNUM *q1;
+	BIGNUM *qr;
+	BIGNUM *q2;
+};
+
+static void free_q1q2_ctx(struct q1q2_ctx *ctx)
+{
+	BN_CTX_free(ctx->bn_ctx);
+	BN_free(ctx->m);
+	BN_free(ctx->s);
+	BN_free(ctx->q1);
+	BN_free(ctx->qr);
+	BN_free(ctx->q2);
+}
+
+static bool alloc_q1q2_ctx(const uint8_t *s, const uint8_t *m,
+			   struct q1q2_ctx *ctx)
+{
+	ctx->bn_ctx = BN_CTX_new();
+	ctx->s = BN_bin2bn(s, SGX_MODULUS_SIZE, NULL);
+	ctx->m = BN_bin2bn(m, SGX_MODULUS_SIZE, NULL);
+	ctx->q1 = BN_new();
+	ctx->qr = BN_new();
+	ctx->q2 = BN_new();
+
+	if (!ctx->bn_ctx || !ctx->s || !ctx->m || !ctx->q1 || !ctx->qr ||
+	    !ctx->q2) {
+		free_q1q2_ctx(ctx);
+		return false;
+	}
+
+	return true;
+}
+
+static void reverse_bytes(void *data, int length)
+{
+	int i = 0;
+	int j = length - 1;
+	uint8_t temp;
+	uint8_t *ptr = data;
+
+	while (i < j) {
+		temp = ptr[i];
+		ptr[i] = ptr[j];
+		ptr[j] = temp;
+		i++;
+		j--;
+	}
+}
+
+static bool calc_q1q2(const uint8_t *s, const uint8_t *m, uint8_t *q1,
+		      uint8_t *q2)
+{
+	struct q1q2_ctx ctx;
+	int len;
+
+	if (!alloc_q1q2_ctx(s, m, &ctx)) {
+		fprintf(stderr, "Not enough memory for Q1Q2 calculation\n");
+		return false;
+	}
+
+	if (!BN_mul(ctx.q1, ctx.s, ctx.s, ctx.bn_ctx))
+		goto out;
+
+	if (!BN_div(ctx.q1, ctx.qr, ctx.q1, ctx.m, ctx.bn_ctx))
+		goto out;
+
+	if (BN_num_bytes(ctx.q1) > SGX_MODULUS_SIZE) {
+		fprintf(stderr, "Too large Q1 %d bytes\n",
+			BN_num_bytes(ctx.q1));
+		goto out;
+	}
+
+	if (!BN_mul(ctx.q2, ctx.s, ctx.qr, ctx.bn_ctx))
+		goto out;
+
+	if (!BN_div(ctx.q2, NULL, ctx.q2, ctx.m, ctx.bn_ctx))
+		goto out;
+
+	if (BN_num_bytes(ctx.q2) > SGX_MODULUS_SIZE) {
+		fprintf(stderr, "Too large Q2 %d bytes\n",
+			BN_num_bytes(ctx.q2));
+		goto out;
+	}
+
+	len = BN_bn2bin(ctx.q1, q1);
+	reverse_bytes(q1, len);
+	len = BN_bn2bin(ctx.q2, q2);
+	reverse_bytes(q2, len);
+
+	free_q1q2_ctx(&ctx);
+	return true;
+out:
+	free_q1q2_ctx(&ctx);
+	return false;
+}
+
+struct sgx_sigstruct_payload {
+	struct sgx_sigstruct_header header;
+	struct sgx_sigstruct_body body;
+};
+
+static bool check_crypto_errors(void)
+{
+	int err;
+	bool had_errors = false;
+	const char *filename;
+	int line;
+	char str[256];
+
+	for ( ; ; ) {
+		if (ERR_peek_error() == 0)
+			break;
+
+		had_errors = true;
+		err = ERR_get_error_line(&filename, &line);
+		ERR_error_string_n(err, str, sizeof(str));
+		fprintf(stderr, "crypto: %s: %s:%d\n", str, filename, line);
+	}
+
+	return had_errors;
+}
+
+static inline const BIGNUM *get_modulus(RSA *key)
+{
+	const BIGNUM *n;
+
+	RSA_get0_key(key, &n, NULL, NULL);
+	return n;
+}
+
+static RSA *gen_sign_key(void)
+{
+	unsigned long sign_key_length;
+	BIO *bio;
+	RSA *key;
+
+	sign_key_length = (unsigned long)&sign_key_end -
+			  (unsigned long)&sign_key;
+
+	bio = BIO_new_mem_buf(&sign_key, sign_key_length);
+	if (!bio)
+		return NULL;
+
+	key = PEM_read_bio_RSAPrivateKey(bio, NULL, NULL, NULL);
+	BIO_free(bio);
+
+	return key;
+}
+
+enum mrtags {
+	MRECREATE = 0x0045544145524345,
+	MREADD = 0x0000000044444145,
+	MREEXTEND = 0x00444E4554584545,
+};
+
+static bool mrenclave_update(EVP_MD_CTX *ctx, const void *data)
+{
+	if (!EVP_DigestUpdate(ctx, data, 64)) {
+		fprintf(stderr, "digest update failed\n");
+		return false;
+	}
+
+	return true;
+}
+
+static bool mrenclave_commit(EVP_MD_CTX *ctx, uint8_t *mrenclave)
+{
+	unsigned int size;
+
+	if (!EVP_DigestFinal_ex(ctx, (unsigned char *)mrenclave, &size)) {
+		fprintf(stderr, "digest commit failed\n");
+		return false;
+	}
+
+	if (size != 32) {
+		fprintf(stderr, "invalid digest size = %u\n", size);
+		return false;
+	}
+
+	return true;
+}
+
+struct mrecreate {
+	uint64_t tag;
+	uint32_t ssaframesize;
+	uint64_t size;
+	uint8_t reserved[44];
+} __attribute__((__packed__));
+
+
+static bool mrenclave_ecreate(EVP_MD_CTX *ctx, uint64_t blob_size)
+{
+	struct mrecreate mrecreate;
+	uint64_t encl_size;
+
+	for (encl_size = 0x1000; encl_size < blob_size; )
+		encl_size <<= 1;
+
+	memset(&mrecreate, 0, sizeof(mrecreate));
+	mrecreate.tag = MRECREATE;
+	mrecreate.ssaframesize = 1;
+	mrecreate.size = encl_size;
+
+	if (!EVP_DigestInit_ex(ctx, EVP_sha256(), NULL))
+		return false;
+
+	return mrenclave_update(ctx, &mrecreate);
+}
+
+struct mreadd {
+	uint64_t tag;
+	uint64_t offset;
+	uint64_t flags; /* SECINFO flags */
+	uint8_t reserved[40];
+} __attribute__((__packed__));
+
+static bool mrenclave_eadd(EVP_MD_CTX *ctx, uint64_t offset, uint64_t flags)
+{
+	struct mreadd mreadd;
+
+	memset(&mreadd, 0, sizeof(mreadd));
+	mreadd.tag = MREADD;
+	mreadd.offset = offset;
+	mreadd.flags = flags;
+
+	return mrenclave_update(ctx, &mreadd);
+}
+
+struct mreextend {
+	uint64_t tag;
+	uint64_t offset;
+	uint8_t reserved[48];
+} __attribute__((__packed__));
+
+static bool mrenclave_eextend(EVP_MD_CTX *ctx, uint64_t offset,
+			      const uint8_t *data)
+{
+	struct mreextend mreextend;
+	int i;
+
+	for (i = 0; i < 0x1000; i += 0x100) {
+		memset(&mreextend, 0, sizeof(mreextend));
+		mreextend.tag = MREEXTEND;
+		mreextend.offset = offset + i;
+
+		if (!mrenclave_update(ctx, &mreextend))
+			return false;
+
+		if (!mrenclave_update(ctx, &data[i + 0x00]))
+			return false;
+
+		if (!mrenclave_update(ctx, &data[i + 0x40]))
+			return false;
+
+		if (!mrenclave_update(ctx, &data[i + 0x80]))
+			return false;
+
+		if (!mrenclave_update(ctx, &data[i + 0xC0]))
+			return false;
+	}
+
+	return true;
+}
+
+static bool mrenclave_segment(EVP_MD_CTX *ctx, struct encl *encl,
+			      struct encl_segment *seg)
+{
+	uint64_t end = seg->size;
+	uint64_t offset;
+
+	for (offset = 0; offset < end; offset += PAGE_SIZE) {
+		if (!mrenclave_eadd(ctx, seg->offset + offset, seg->flags))
+			return false;
+
+		if (seg->measure) {
+			if (!mrenclave_eextend(ctx, seg->offset + offset, seg->src + offset))
+				return false;
+		}
+	}
+
+	return true;
+}
+
+bool encl_measure(struct encl *encl)
+{
+	uint64_t header1[2] = {0x000000E100000006, 0x0000000000010000};
+	uint64_t header2[2] = {0x0000006000000101, 0x0000000100000060};
+	struct sgx_sigstruct *sigstruct = &encl->sigstruct;
+	struct sgx_sigstruct_payload payload;
+	uint8_t digest[SHA256_DIGEST_LENGTH];
+	EVP_MD_CTX *ctx = NULL;
+	unsigned int siglen;
+	RSA *key = NULL;
+	int i;
+
+	memset(sigstruct, 0, sizeof(*sigstruct));
+
+	sigstruct->header.header1[0] = header1[0];
+	sigstruct->header.header1[1] = header1[1];
+	sigstruct->header.header2[0] = header2[0];
+	sigstruct->header.header2[1] = header2[1];
+	sigstruct->exponent = 3;
+	sigstruct->body.attributes = SGX_ATTR_MODE64BIT;
+	sigstruct->body.xfrm = 3;
+
+	/* sanity check */
+	if (check_crypto_errors())
+		goto err;
+
+	key = gen_sign_key();
+	if (!key) {
+		ERR_print_errors_fp(stdout);
+		goto err;
+	}
+
+	BN_bn2bin(get_modulus(key), sigstruct->modulus);
+
+	ctx = EVP_MD_CTX_create();
+	if (!ctx)
+		goto err;
+
+	if (!mrenclave_ecreate(ctx, encl->src_size))
+		goto err;
+
+	for (i = 0; i < encl->nr_segments; i++) {
+		struct encl_segment *seg = &encl->segment_tbl[i];
+
+		if (!mrenclave_segment(ctx, encl, seg))
+			goto err;
+	}
+
+	if (!mrenclave_commit(ctx, sigstruct->body.mrenclave))
+		goto err;
+
+	memcpy(&payload.header, &sigstruct->header, sizeof(sigstruct->header));
+	memcpy(&payload.body, &sigstruct->body, sizeof(sigstruct->body));
+
+	SHA256((unsigned char *)&payload, sizeof(payload), digest);
+
+	if (!RSA_sign(NID_sha256, digest, SHA256_DIGEST_LENGTH,
+		      sigstruct->signature, &siglen, key))
+		goto err;
+
+	if (!calc_q1q2(sigstruct->signature, sigstruct->modulus, sigstruct->q1,
+		       sigstruct->q2))
+		goto err;
+
+	/* BE -> LE */
+	reverse_bytes(sigstruct->signature, SGX_MODULUS_SIZE);
+	reverse_bytes(sigstruct->modulus, SGX_MODULUS_SIZE);
+
+	EVP_MD_CTX_destroy(ctx);
+	RSA_free(key);
+	return true;
+
+err:
+	if (ctx)
+		EVP_MD_CTX_destroy(ctx);
+	RSA_free(key);
+	return false;
+}
diff --git a/tools/testing/selftests/sgx/test_encl.c b/tools/testing/selftests/sgx/test_encl.c
new file mode 100644
index 000000000000..2c4d709cce2d
--- /dev/null
+++ b/tools/testing/selftests/sgx/test_encl.c
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0
+/*  Copyright(c) 2016-20 Intel Corporation. */
+
+#include <stddef.h>
+#include "defines.h"
+
+/*
+ * Data buffer spanning two pages that will be placed first in the .data
+ * segment via the linker script. Even if not used internally the second page
+ * is needed by external test manipulating page permissions, so mark
+ * encl_buffer as "used" to make sure it is entirely preserved by the compiler.
+ */
+static uint8_t __used __section(".data.encl_buffer") encl_buffer[8192] = { 1 };
+
+enum sgx_enclu_function {
+	EACCEPT = 0x5,
+	EMODPE = 0x6,
+};
+
+static void do_encl_emodpe(void *_op)
+{
+	struct sgx_secinfo secinfo __aligned(sizeof(struct sgx_secinfo)) = {0};
+	struct encl_op_emodpe *op = _op;
+
+	secinfo.flags = op->flags;
+
+	asm volatile(".byte 0x0f, 0x01, 0xd7"
+				: /* no outputs */
+				: "a" (EMODPE),
+				  "b" (&secinfo),
+				  "c" (op->epc_addr)
+				: "memory" /* read from secinfo pointer */);
+}
+
+static void do_encl_eaccept(void *_op)
+{
+	struct sgx_secinfo secinfo __aligned(sizeof(struct sgx_secinfo)) = {0};
+	struct encl_op_eaccept *op = _op;
+	int rax;
+
+	secinfo.flags = op->flags;
+
+	asm volatile(".byte 0x0f, 0x01, 0xd7"
+				: "=a" (rax)
+				: "a" (EACCEPT),
+				  "b" (&secinfo),
+				  "c" (op->epc_addr)
+				: "memory" /* read from secinfo pointer */);
+
+	op->ret = rax;
+}
+
+static void *memcpy(void *dest, const void *src, size_t n)
+{
+	size_t i;
+
+	for (i = 0; i < n; i++)
+		((char *)dest)[i] = ((char *)src)[i];
+
+	return dest;
+}
+
+static void *memset(void *dest, int c, size_t n)
+{
+	size_t i;
+
+	for (i = 0; i < n; i++)
+		((char *)dest)[i] = c;
+
+	return dest;
+}
+
+static void do_encl_init_tcs_page(void *_op)
+{
+	struct encl_op_init_tcs_page *op = _op;
+	void *tcs = (void *)op->tcs_page;
+	uint32_t val_32;
+
+	memset(tcs, 0, 16);			/* STATE and FLAGS */
+	memcpy(tcs + 16, &op->ssa, 8);		/* OSSA */
+	memset(tcs + 24, 0, 4);			/* CSSA */
+	val_32 = 1;
+	memcpy(tcs + 28, &val_32, 4);		/* NSSA */
+	memcpy(tcs + 32, &op->entry, 8);	/* OENTRY */
+	memset(tcs + 40, 0, 24);		/* AEP, OFSBASE, OGSBASE */
+	val_32 = 0xFFFFFFFF;
+	memcpy(tcs + 64, &val_32, 4);		/* FSLIMIT */
+	memcpy(tcs + 68, &val_32, 4);		/* GSLIMIT */
+	memset(tcs + 72, 0, 4024);		/* Reserved */
+}
+
+static void do_encl_op_put_to_buf(void *op)
+{
+	struct encl_op_put_to_buf *op2 = op;
+
+	memcpy(&encl_buffer[0], &op2->value, 8);
+}
+
+static void do_encl_op_get_from_buf(void *op)
+{
+	struct encl_op_get_from_buf *op2 = op;
+
+	memcpy(&op2->value, &encl_buffer[0], 8);
+}
+
+static void do_encl_op_put_to_addr(void *_op)
+{
+	struct encl_op_put_to_addr *op = _op;
+
+	memcpy((void *)op->addr, &op->value, 8);
+}
+
+static void do_encl_op_get_from_addr(void *_op)
+{
+	struct encl_op_get_from_addr *op = _op;
+
+	memcpy(&op->value, (void *)op->addr, 8);
+}
+
+static void do_encl_op_nop(void *_op)
+{
+
+}
+
+/*
+ * Symbol placed at the start of the enclave image by the linker script.
+ * Declare this extern symbol with visibility "hidden" to ensure the compiler
+ * does not access it through the GOT and generates position-independent
+ * addressing as __encl_base(%rip), so we can get the actual enclave base
+ * during runtime.
+ */
+extern const uint8_t __attribute__((visibility("hidden"))) __encl_base;
+
+typedef void (*encl_op_t)(void *);
+static const encl_op_t encl_op_array[ENCL_OP_MAX] = {
+	do_encl_op_put_to_buf,
+	do_encl_op_get_from_buf,
+	do_encl_op_put_to_addr,
+	do_encl_op_get_from_addr,
+	do_encl_op_nop,
+	do_encl_eaccept,
+	do_encl_emodpe,
+	do_encl_init_tcs_page,
+};
+
+void encl_body(void *rdi,  void *rsi)
+{
+	struct encl_op_header *header = (struct encl_op_header *)rdi;
+	encl_op_t op;
+
+	if (header->type >= ENCL_OP_MAX)
+		return;
+
+	/*
+	 * The enclave base address needs to be added, as this call site
+	 * *cannot be* made rip-relative by the compiler, or fixed up by
+	 * any other possible means.
+	 */
+	op = ((uint64_t)&__encl_base) + encl_op_array[header->type];
+
+	(*op)(header);
+}
diff --git a/tools/testing/selftests/sgx/test_encl.lds b/tools/testing/selftests/sgx/test_encl.lds
new file mode 100644
index 000000000000..ffe851a1cac4
--- /dev/null
+++ b/tools/testing/selftests/sgx/test_encl.lds
@@ -0,0 +1,41 @@
+OUTPUT_FORMAT(elf64-x86-64)
+
+PHDRS
+{
+	tcs PT_LOAD;
+	text PT_LOAD;
+	data PT_LOAD;
+}
+
+SECTIONS
+{
+	. = 0;
+        __encl_base = .;
+	.tcs : {
+		*(.tcs*)
+	} : tcs
+
+	. = ALIGN(4096);
+	.text : {
+		*(.text*)
+		*(.rodata*)
+		FILL(0xDEADBEEF);
+		. = ALIGN(4096);
+	} : text
+
+	.data : {
+		*(.data.encl_buffer)
+		*(.data*)
+	} : data
+
+	/DISCARD/ : {
+		*(.comment*)
+		*(.note*)
+		*(.debug*)
+		*(.eh_frame*)
+		*(.dyn*)
+		*(.gnu.hash)
+	}
+}
+
+ASSERT(!DEFINED(_GLOBAL_OFFSET_TABLE_), "Libcalls through GOT are not supported in enclaves")
diff --git a/tools/testing/selftests/sgx/test_encl_bootstrap.S b/tools/testing/selftests/sgx/test_encl_bootstrap.S
new file mode 100644
index 000000000000..d8c4ac94e032
--- /dev/null
+++ b/tools/testing/selftests/sgx/test_encl_bootstrap.S
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright(c) 2016-20 Intel Corporation.
+ */
+
+	.macro ENCLU
+	.byte 0x0f, 0x01, 0xd7
+	.endm
+
+	.section ".tcs", "aw"
+	.balign	4096
+
+	.fill	1, 8, 0			# STATE (set by CPU)
+	.fill	1, 8, 0			# FLAGS
+	.quad	encl_ssa_tcs1		# OSSA
+	.fill	1, 4, 0			# CSSA (set by CPU)
+	.fill	1, 4, 1			# NSSA
+	.quad	encl_entry		# OENTRY
+	.fill	1, 8, 0			# AEP (set by EENTER and ERESUME)
+	.fill	1, 8, 0			# OFSBASE
+	.fill	1, 8, 0			# OGSBASE
+	.fill	1, 4, 0xFFFFFFFF 	# FSLIMIT
+	.fill	1, 4, 0xFFFFFFFF	# GSLIMIT
+	.fill	4024, 1, 0		# Reserved
+
+	# TCS2
+	.fill	1, 8, 0			# STATE (set by CPU)
+	.fill	1, 8, 0			# FLAGS
+	.quad	encl_ssa_tcs2		# OSSA
+	.fill	1, 4, 0			# CSSA (set by CPU)
+	.fill	1, 4, 1			# NSSA
+	.quad	encl_entry		# OENTRY
+	.fill	1, 8, 0			# AEP (set by EENTER and ERESUME)
+	.fill	1, 8, 0			# OFSBASE
+	.fill	1, 8, 0			# OGSBASE
+	.fill	1, 4, 0xFFFFFFFF 	# FSLIMIT
+	.fill	1, 4, 0xFFFFFFFF	# GSLIMIT
+	.fill	4024, 1, 0		# Reserved
+
+	.text
+
+encl_entry:
+	# RBX contains the base address for TCS, which is the first address
+	# inside the enclave for TCS #1 and one page into the enclave for
+	# TCS #2. First make it relative by substracting __encl_base and
+	# then add the address of encl_stack to get the address for the stack.
+	lea __encl_base(%rip), %rax
+	sub %rax, %rbx
+	lea encl_stack(%rip), %rax
+	add %rbx, %rax
+	jmp encl_entry_core
+encl_dyn_entry:
+	# Entry point for dynamically created TCS page expected to follow
+	# its stack directly.
+	lea -1(%rbx), %rax
+encl_entry_core:
+	xchg	%rsp, %rax
+	push	%rax
+
+	push	%rcx # push the address after EENTER
+
+	# NOTE: as the selftest enclave is *not* intended for production,
+	# simplify the code by not initializing ABI registers on entry or
+	# cleansing caller-save registers on exit.
+	call	encl_body
+
+	# Prepare EEXIT target by popping the address of the instruction after
+	# EENTER to RBX.
+	pop	%rbx
+
+	# Restore the caller stack.
+	pop	%rax
+	mov	%rax, %rsp
+
+	# EEXIT
+	mov	$4, %rax
+	enclu
+
+	.section ".data", "aw"
+
+encl_ssa_tcs1:
+	.space 4096
+encl_ssa_tcs2:
+	.space 4096
+
+	.balign 4096
+	# Stack of TCS #1
+	.space 4096
+encl_stack:
+	.balign 4096
+	# Stack of TCS #2
+	.space 4096
diff --git a/tools/testing/selftests/signal/.gitignore b/tools/testing/selftests/signal/.gitignore
new file mode 100644
index 000000000000..3f339865a3b6
--- /dev/null
+++ b/tools/testing/selftests/signal/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+mangle_uc_sigmask
+sas
diff --git a/tools/testing/selftests/signal/Makefile b/tools/testing/selftests/signal/Makefile
new file mode 100644
index 000000000000..e0bf7058d19c
--- /dev/null
+++ b/tools/testing/selftests/signal/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS = -Wall
+TEST_GEN_PROGS = mangle_uc_sigmask
+TEST_GEN_PROGS += sas
+
+include ../lib.mk
+
diff --git a/tools/testing/selftests/signal/current_stack_pointer.h b/tools/testing/selftests/signal/current_stack_pointer.h
new file mode 100644
index 000000000000..09da8f1011ce
--- /dev/null
+++ b/tools/testing/selftests/signal/current_stack_pointer.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#if __alpha__
+register unsigned long sp asm("$30");
+#elif __arm__ || __aarch64__ || __csky__ || __m68k__ || __mips__ || __riscv
+register unsigned long sp asm("sp");
+#elif __i386__
+register unsigned long sp asm("esp");
+#elif __loongarch64
+register unsigned long sp asm("$sp");
+#elif __powerpc__
+register unsigned long sp asm("r1");
+#elif __s390x__
+register unsigned long sp asm("%15");
+#elif __sh__
+register unsigned long sp asm("r15");
+#elif __x86_64__
+register unsigned long sp asm("rsp");
+#elif __XTENSA__
+register unsigned long sp asm("a1");
+#else
+#error "implement current_stack_pointer equivalent"
+#endif
diff --git a/tools/testing/selftests/signal/mangle_uc_sigmask.c b/tools/testing/selftests/signal/mangle_uc_sigmask.c
new file mode 100644
index 000000000000..11dbc14bbc8e
--- /dev/null
+++ b/tools/testing/selftests/signal/mangle_uc_sigmask.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024 ARM Ltd.
+ *
+ * Author: Dev Jain <dev.jain@arm.com>
+ *
+ * Test describing a clear distinction between signal states - delivered and
+ * blocked, and their relation with ucontext.
+ *
+ * A process can request blocking of a signal by masking it into its set of
+ * blocked signals; such a signal, when sent to the process by the kernel,
+ * will get blocked by the process and it may later unblock it and take an
+ * action. At that point, the signal will be delivered.
+ *
+ * We test the following functionalities of the kernel:
+ *
+ * ucontext_t describes the interrupted context of the thread; this implies
+ * that, in case of registering a handler and catching the corresponding
+ * signal, that state is before what was jumping into the handler.
+ *
+ * The thread's mask of blocked signals can be permanently changed, i.e, not
+ * just during the execution of the handler, by mangling with uc_sigmask
+ * from inside the handler.
+ *
+ * Assume that we block the set of signals, S1, by sigaction(), and say, the
+ * signal for which the handler was installed, is S2. When S2 is sent to the
+ * program, it will be considered "delivered", since we will act on the
+ * signal and jump to the handler. Any instances of S1 or S2 raised, while the
+ * program is executing inside the handler, will be blocked; they will be
+ * delivered immediately upon termination of the handler.
+ *
+ * For standard signals (also see real-time signals in the man page), multiple
+ * blocked instances of the same signal are not queued; such a signal will
+ * be delivered just once.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <ucontext.h>
+
+#include "kselftest.h"
+
+void handler_verify_ucontext(int signo, siginfo_t *info, void *uc)
+{
+	int ret;
+
+	/* Kernel dumps ucontext with USR2 blocked */
+	ret = sigismember(&(((ucontext_t *)uc)->uc_sigmask), SIGUSR2);
+	ksft_test_result(ret == 1, "USR2 blocked in ucontext\n");
+
+	/*
+	 * USR2 is blocked; can be delivered neither here, nor after
+	 * exit from handler
+	 */
+	if (raise(SIGUSR2))
+		ksft_exit_fail_perror("raise");
+}
+
+void handler_segv(int signo, siginfo_t *info, void *uc)
+{
+	/*
+	 * Three cases possible:
+	 * 1. Program already terminated due to segmentation fault.
+	 * 2. SEGV was blocked even after returning from handler_usr.
+	 * 3. SEGV was delivered on returning from handler_usr.
+	 * The last option must happen.
+	 */
+	ksft_test_result_pass("SEGV delivered\n");
+}
+
+static int cnt;
+
+void handler_usr(int signo, siginfo_t *info, void *uc)
+{
+	int ret;
+
+	/*
+	 * Break out of infinite recursion caused by raise(SIGUSR1) invoked
+	 * from inside the handler
+	 */
+	++cnt;
+	if (cnt > 1)
+		return;
+
+	/* SEGV blocked during handler execution, delivered on return */
+	if (raise(SIGSEGV))
+		ksft_exit_fail_perror("raise");
+
+	ksft_print_msg("SEGV bypassed successfully\n");
+
+	/*
+	 * Signal responsible for handler invocation is blocked by default;
+	 * delivered on return, leading to recursion
+	 */
+	if (raise(SIGUSR1))
+		ksft_exit_fail_perror("raise");
+
+	ksft_test_result(cnt == 1,
+			 "USR1 is blocked, cannot invoke handler right now\n");
+
+	/* Raise USR1 again; only one instance must be delivered upon exit */
+	if (raise(SIGUSR1))
+		ksft_exit_fail_perror("raise");
+
+	/* SEGV has been blocked in sa_mask, but ucontext is empty */
+	ret = sigismember(&(((ucontext_t *)uc)->uc_sigmask), SIGSEGV);
+	ksft_test_result(ret == 0, "SEGV not blocked in ucontext\n");
+
+	/* USR1 has been blocked, but ucontext is empty */
+	ret = sigismember(&(((ucontext_t *)uc)->uc_sigmask), SIGUSR1);
+	ksft_test_result(ret == 0, "USR1 not blocked in ucontext\n");
+
+	/*
+	 * Mangle ucontext; this will be copied back into &current->blocked
+	 * on return from the handler.
+	 */
+	if (sigaddset(&((ucontext_t *)uc)->uc_sigmask, SIGUSR2))
+		ksft_exit_fail_perror("sigaddset");
+}
+
+int main(int argc, char *argv[])
+{
+	struct sigaction act, act2;
+	sigset_t set, oldset;
+
+	ksft_print_header();
+	ksft_set_plan(7);
+
+	act.sa_flags = SA_SIGINFO;
+	act.sa_sigaction = &handler_usr;
+
+	/* Add SEGV to blocked mask */
+	if (sigemptyset(&act.sa_mask) || sigaddset(&act.sa_mask, SIGSEGV)
+	    || (sigismember(&act.sa_mask, SIGSEGV) != 1))
+		ksft_exit_fail_msg("Cannot add SEGV to blocked mask\n");
+
+	if (sigaction(SIGUSR1, &act, NULL))
+		ksft_exit_fail_perror("Cannot install handler");
+
+	act2.sa_flags = SA_SIGINFO;
+	act2.sa_sigaction = &handler_segv;
+
+	if (sigaction(SIGSEGV, &act2, NULL))
+		ksft_exit_fail_perror("Cannot install handler");
+
+	/* Invoke handler */
+	if (raise(SIGUSR1))
+		ksft_exit_fail_perror("raise");
+
+	/* USR1 must not be queued */
+	ksft_test_result(cnt == 2, "handler invoked only twice\n");
+
+	/* Mangled ucontext implies USR2 is blocked for current thread */
+	if (raise(SIGUSR2))
+		ksft_exit_fail_perror("raise");
+
+	ksft_print_msg("USR2 bypassed successfully\n");
+
+	act.sa_sigaction = &handler_verify_ucontext;
+	if (sigaction(SIGUSR1, &act, NULL))
+		ksft_exit_fail_perror("Cannot install handler");
+
+	if (raise(SIGUSR1))
+		ksft_exit_fail_perror("raise");
+
+	/*
+	 * Raising USR2 in handler_verify_ucontext is redundant since it
+	 * is blocked
+	 */
+	ksft_print_msg("USR2 still blocked on return from handler\n");
+
+	/* Confirm USR2 blockage by sigprocmask() too */
+	if (sigemptyset(&set))
+		ksft_exit_fail_perror("sigemptyset");
+
+	if (sigprocmask(SIG_BLOCK, &set, &oldset))
+		ksft_exit_fail_perror("sigprocmask");
+
+	ksft_test_result(sigismember(&oldset, SIGUSR2) == 1,
+			 "USR2 present in &current->blocked\n");
+
+	ksft_finished();
+}
diff --git a/tools/testing/selftests/signal/sas.c b/tools/testing/selftests/signal/sas.c
new file mode 100644
index 000000000000..306b996ab365
--- /dev/null
+++ b/tools/testing/selftests/signal/sas.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Stas Sergeev <stsp@users.sourceforge.net>
+ *
+ * test sigaltstack(SS_ONSTACK | SS_AUTODISARM)
+ * If that succeeds, then swapcontext() can be used inside sighandler safely.
+ *
+ */
+
+#define _GNU_SOURCE
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mman.h>
+#include <ucontext.h>
+#include <alloca.h>
+#include <string.h>
+#include <assert.h>
+#include <errno.h>
+#include <sys/auxv.h>
+
+#include "kselftest.h"
+#include "current_stack_pointer.h"
+
+#ifndef SS_AUTODISARM
+#define SS_AUTODISARM  (1U << 31)
+#endif
+
+#ifndef AT_MINSIGSTKSZ
+#define AT_MINSIGSTKSZ	51
+#endif
+
+static unsigned int stack_size;
+static void *sstack, *ustack;
+static ucontext_t uc, sc;
+static const char *msg = "[OK]\tStack preserved";
+static const char *msg2 = "[FAIL]\tStack corrupted";
+struct stk_data {
+	char msg[128];
+	int flag;
+};
+
+void my_usr1(int sig, siginfo_t *si, void *u)
+{
+	char *aa;
+	int err;
+	stack_t stk;
+	struct stk_data *p;
+
+	if (sp < (unsigned long)sstack ||
+			sp >= (unsigned long)sstack + stack_size) {
+		ksft_exit_fail_msg("SP is not on sigaltstack\n");
+	}
+	/* put some data on stack. other sighandler will try to overwrite it */
+	aa = alloca(1024);
+	assert(aa);
+	p = (struct stk_data *)(aa + 512);
+	strcpy(p->msg, msg);
+	p->flag = 1;
+	ksft_print_msg("[RUN]\tsignal USR1\n");
+	err = sigaltstack(NULL, &stk);
+	if (err) {
+		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+	if (stk.ss_flags != SS_DISABLE)
+		ksft_test_result_fail("tss_flags=%x, should be SS_DISABLE\n",
+				stk.ss_flags);
+	else
+		ksft_test_result_pass(
+				"sigaltstack is disabled in sighandler\n");
+	swapcontext(&sc, &uc);
+	ksft_print_msg("%s\n", p->msg);
+	if (!p->flag) {
+		ksft_exit_fail_msg("[RUN]\tAborting\n");
+		exit(EXIT_FAILURE);
+	}
+}
+
+void my_usr2(int sig, siginfo_t *si, void *u)
+{
+	char *aa;
+	struct stk_data *p;
+
+	ksft_print_msg("[RUN]\tsignal USR2\n");
+	aa = alloca(1024);
+	/* dont run valgrind on this */
+	/* try to find the data stored by previous sighandler */
+	p = memmem(aa, 1024, msg, strlen(msg));
+	if (p) {
+		ksft_test_result_fail("sigaltstack re-used\n");
+		/* corrupt the data */
+		strcpy(p->msg, msg2);
+		/* tell other sighandler that his data is corrupted */
+		p->flag = 0;
+	}
+}
+
+static void switch_fn(void)
+{
+	ksft_print_msg("[RUN]\tswitched to user ctx\n");
+	raise(SIGUSR2);
+	setcontext(&sc);
+}
+
+int main(void)
+{
+	struct sigaction act;
+	stack_t stk;
+	int err;
+
+	/* Make sure more than the required minimum. */
+	stack_size = getauxval(AT_MINSIGSTKSZ) + SIGSTKSZ;
+	ksft_print_msg("[NOTE]\tthe stack size is %u\n", stack_size);
+
+	ksft_print_header();
+	ksft_set_plan(3);
+
+	sigemptyset(&act.sa_mask);
+	act.sa_flags = SA_ONSTACK | SA_SIGINFO;
+	act.sa_sigaction = my_usr1;
+	sigaction(SIGUSR1, &act, NULL);
+	act.sa_sigaction = my_usr2;
+	sigaction(SIGUSR2, &act, NULL);
+	sstack = mmap(NULL, stack_size, PROT_READ | PROT_WRITE,
+		      MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+	if (sstack == MAP_FAILED) {
+		ksft_exit_fail_msg("mmap() - %s\n", strerror(errno));
+		return EXIT_FAILURE;
+	}
+
+	err = sigaltstack(NULL, &stk);
+	if (err) {
+		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+	if (stk.ss_flags == SS_DISABLE) {
+		ksft_test_result_pass(
+				"Initial sigaltstack state was SS_DISABLE\n");
+	} else {
+		ksft_exit_fail_msg("Initial sigaltstack state was %x; "
+		       "should have been SS_DISABLE\n", stk.ss_flags);
+		return EXIT_FAILURE;
+	}
+
+	stk.ss_sp = sstack;
+	stk.ss_size = stack_size;
+	stk.ss_flags = SS_ONSTACK | SS_AUTODISARM;
+	err = sigaltstack(&stk, NULL);
+	if (err) {
+		if (errno == EINVAL) {
+			ksft_test_result_skip(
+				"[NOTE]\tThe running kernel doesn't support SS_AUTODISARM\n");
+			/*
+			 * If test cases for the !SS_AUTODISARM variant were
+			 * added, we could still run them.  We don't have any
+			 * test cases like that yet, so just exit and report
+			 * success.
+			 */
+			return 0;
+		} else {
+			ksft_exit_fail_msg(
+				"sigaltstack(SS_ONSTACK | SS_AUTODISARM)  %s\n",
+					strerror(errno));
+			return EXIT_FAILURE;
+		}
+	}
+
+	ustack = mmap(NULL, stack_size, PROT_READ | PROT_WRITE,
+		      MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0);
+	if (ustack == MAP_FAILED) {
+		ksft_exit_fail_msg("mmap() - %s\n", strerror(errno));
+		return EXIT_FAILURE;
+	}
+	getcontext(&uc);
+	uc.uc_link = NULL;
+	uc.uc_stack.ss_sp = ustack;
+	uc.uc_stack.ss_size = stack_size;
+	makecontext(&uc, switch_fn, 0);
+	raise(SIGUSR1);
+
+	err = sigaltstack(NULL, &stk);
+	if (err) {
+		ksft_exit_fail_msg("sigaltstack() - %s\n", strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+	if (stk.ss_flags != SS_AUTODISARM) {
+		ksft_exit_fail_msg("ss_flags=%x, should be SS_AUTODISARM\n",
+				stk.ss_flags);
+		exit(EXIT_FAILURE);
+	}
+	ksft_test_result_pass(
+			"sigaltstack is still SS_AUTODISARM after signal\n");
+
+	ksft_exit_pass();
+	return 0;
+}
diff --git a/tools/testing/selftests/size/.gitignore b/tools/testing/selftests/size/.gitignore
index 189b7818de34..923e18eed1a0 100644
--- a/tools/testing/selftests/size/.gitignore
+++ b/tools/testing/selftests/size/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
 get_size
diff --git a/tools/testing/selftests/size/Makefile b/tools/testing/selftests/size/Makefile
index bbd0b5398b61..b87facc00a6e 100644
--- a/tools/testing/selftests/size/Makefile
+++ b/tools/testing/selftests/size/Makefile
@@ -1,11 +1,6 @@
-all: get_size
+# SPDX-License-Identifier: GPL-2.0-only
+CFLAGS := -static -ffreestanding -nostartfiles -s
 
-get_size: get_size.c
-	$(CC) -static -ffreestanding -nostartfiles -s $< -o $@
-
-TEST_PROGS := get_size
+TEST_GEN_PROGS := get_size
 
 include ../lib.mk
-
-clean:
-	$(RM) get_size
diff --git a/tools/testing/selftests/size/get_size.c b/tools/testing/selftests/size/get_size.c
index 2d1af7cca463..2980b1a63366 100644
--- a/tools/testing/selftests/size/get_size.c
+++ b/tools/testing/selftests/size/get_size.c
@@ -1,8 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright 2014 Sony Mobile Communications Inc.
  *
- * Licensed under the terms of the GNU GPL License version 2
- *
  * Selftest for runtime system size
  *
  * Prints the amount of RAM that the currently running system is using.
@@ -12,23 +11,35 @@
  * own execution.  It also attempts to have as few dependencies
  * on kernel features as possible.
  *
- * It should be statically linked, with startup libs avoided.
- * It uses no library calls, and only the following 3 syscalls:
+ * It should be statically linked, with startup libs avoided.  It uses
+ * no library calls except the syscall() function for the following 3
+ * syscalls:
  *   sysinfo(), write(), and _exit()
  *
  * For output, it avoids printf (which in some C libraries
  * has large external dependencies) by  implementing it's own
  * number output and print routines, and using __builtin_strlen()
+ *
+ * The test may crash if any of the above syscalls fails because in some
+ * libc implementations (e.g. the GNU C Library) errno is saved in
+ * thread-local storage, which does not get initialized due to avoiding
+ * startup libs.
  */
 
 #include <sys/sysinfo.h>
 #include <unistd.h>
+#include <sys/syscall.h>
 
 #define STDOUT_FILENO 1
 
 static int print(const char *s)
 {
-	return write(STDOUT_FILENO, s, __builtin_strlen(s));
+	size_t len = 0;
+
+	while (s[len] != '\0')
+		len++;
+
+	return syscall(SYS_write, STDOUT_FILENO, s, len);
 }
 
 static inline char *num_to_str(unsigned long num, char *buf, int len)
@@ -75,26 +86,31 @@ void _start(void)
 	int ccode;
 	struct sysinfo info;
 	unsigned long used;
+	static const char *test_name = " get runtime memory use\n";
 
-	print("Testing system size.\n");
-	print("1..1\n");
+	print("TAP version 13\n");
+	print("# Testing system size.\n");
 
-	ccode = sysinfo(&info);
+	ccode = syscall(SYS_sysinfo, &info);
 	if (ccode < 0) {
-		print("not ok 1 get runtime memory use\n");
-		print("# could not get sysinfo\n");
-		_exit(ccode);
+		print("not ok 1");
+		print(test_name);
+		print(" ---\n reason: \"could not get sysinfo\"\n ...\n");
+		syscall(SYS_exit, ccode);
 	}
+	print("ok 1");
+	print(test_name);
+
 	/* ignore cache complexities for now */
 	used = info.totalram - info.freeram - info.bufferram;
-	print_k_value("ok 1 get runtime memory use # size = ", used,
-		info.mem_unit);
-
 	print("# System runtime memory report (units in Kilobytes):\n");
-	print_k_value("#   Total:  ", info.totalram, info.mem_unit);
-	print_k_value("#   Free:   ", info.freeram, info.mem_unit);
-	print_k_value("#   Buffer: ", info.bufferram, info.mem_unit);
-	print_k_value("#   In use: ", used, info.mem_unit);
+	print(" ---\n");
+	print_k_value(" Total:  ", info.totalram, info.mem_unit);
+	print_k_value(" Free:   ", info.freeram, info.mem_unit);
+	print_k_value(" Buffer: ", info.bufferram, info.mem_unit);
+	print_k_value(" In use: ", used, info.mem_unit);
+	print(" ...\n");
+	print("1..1\n");
 
-	_exit(0);
+	syscall(SYS_exit, 0);
 }
diff --git a/tools/testing/selftests/sparc64/Makefile b/tools/testing/selftests/sparc64/Makefile
new file mode 100644
index 000000000000..a19531dba4dc
--- /dev/null
+++ b/tools/testing/selftests/sparc64/Makefile
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0
+uname_M := $(shell uname -m 2>/dev/null || echo not)
+ARCH ?= $(shell echo $(uname_M) | sed -e s/x86_64/x86/)
+
+ifneq ($(ARCH),sparc64)
+nothing:
+.PHONY: all clean run_tests install
+.SILENT:
+else
+
+SUBDIRS := drivers
+
+TEST_PROGS := run.sh
+
+
+.PHONY: all clean
+
+include ../lib.mk
+
+all:
+	@for DIR in $(SUBDIRS); do		\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		#SUBDIR test prog name should be in the form: SUBDIR_test.sh \
+		TEST=$$DIR"_test.sh"; \
+		if [ -e $$DIR/$$TEST ]; then \
+			rsync -a $$DIR/$$TEST $$BUILD_TARGET/; \
+		fi \
+	done
+
+override define INSTALL_RULE
+	mkdir -p $(INSTALL_PATH)
+	install -t $(INSTALL_PATH) $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)
+
+	@for SUBDIR in $(SUBDIRS); do \
+		BUILD_TARGET=$(OUTPUT)/$$SUBDIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		$(MAKE) OUTPUT=$$BUILD_TARGET -C $$SUBDIR INSTALL_PATH=$(INSTALL_PATH)/$$SUBDIR install; \
+	done;
+endef
+
+override define CLEAN
+	@for DIR in $(SUBDIRS); do		\
+		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
+		mkdir $$BUILD_TARGET  -p;	\
+		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+	done
+endef
+endif
diff --git a/tools/testing/selftests/sparc64/drivers/.gitignore b/tools/testing/selftests/sparc64/drivers/.gitignore
new file mode 100644
index 000000000000..0331f77373b5
--- /dev/null
+++ b/tools/testing/selftests/sparc64/drivers/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+adi-test
diff --git a/tools/testing/selftests/sparc64/drivers/Makefile b/tools/testing/selftests/sparc64/drivers/Makefile
new file mode 100644
index 000000000000..deb0df415565
--- /dev/null
+++ b/tools/testing/selftests/sparc64/drivers/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+INCLUDEDIR := -I.
+CFLAGS := $(CFLAGS) $(INCLUDEDIR) -Wall -O2 -g
+
+TEST_GEN_FILES := adi-test
+
+all: $(TEST_GEN_FILES)
+
+$(TEST_GEN_FILES): adi-test.c
+
+TEST_PROGS := drivers_test.sh
+
+include ../../lib.mk
+
+$(OUTPUT)/adi-test: adi-test.c
diff --git a/tools/testing/selftests/sparc64/drivers/adi-test.c b/tools/testing/selftests/sparc64/drivers/adi-test.c
new file mode 100644
index 000000000000..b986714e7a52
--- /dev/null
+++ b/tools/testing/selftests/sparc64/drivers/adi-test.c
@@ -0,0 +1,717 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * selftest for sparc64's privileged ADI driver
+ *
+ * Author: Tom Hromatka <tom.hromatka@oracle.com>
+ */
+#include <linux/kernel.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "kselftest.h"
+
+#define DEBUG_LEVEL_1_BIT	(0x0001)
+#define DEBUG_LEVEL_2_BIT	(0x0002)
+#define DEBUG_LEVEL_3_BIT	(0x0004)
+#define DEBUG_LEVEL_4_BIT	(0x0008)
+#define DEBUG_TIMING_BIT	(0x1000)
+
+/* bit mask of enabled bits to print */
+#define DEBUG 0x0001
+
+#define DEBUG_PRINT_L1(...)	debug_print(DEBUG_LEVEL_1_BIT, __VA_ARGS__)
+#define DEBUG_PRINT_L2(...)	debug_print(DEBUG_LEVEL_2_BIT, __VA_ARGS__)
+#define DEBUG_PRINT_L3(...)	debug_print(DEBUG_LEVEL_3_BIT, __VA_ARGS__)
+#define DEBUG_PRINT_L4(...)	debug_print(DEBUG_LEVEL_4_BIT, __VA_ARGS__)
+#define DEBUG_PRINT_T(...)	debug_print(DEBUG_TIMING_BIT, __VA_ARGS__)
+
+static void debug_print(int level, const char *s, ...)
+{
+	va_list args;
+
+	va_start(args, s);
+
+	if (DEBUG & level)
+		vfprintf(stdout, s, args);
+	va_end(args);
+}
+
+#ifndef min
+#define min(x, y) ((x) < (y) ? x : y)
+#endif
+
+#define RETURN_FROM_TEST(_ret) \
+	do { \
+		DEBUG_PRINT_L1( \
+			"\tTest %s returned %d\n", __func__, _ret); \
+		return _ret; \
+	} while (0)
+
+#define ADI_BLKSZ	64
+#define ADI_MAX_VERSION	15
+
+#define TEST_STEP_FAILURE(_ret) \
+	do { \
+		fprintf(stderr, "\tTest step failure: %d at %s:%d\n", \
+			_ret, __func__, __LINE__); \
+		goto out; \
+	} while (0)
+
+#define RDTICK(_x) \
+	asm volatile(" rd %%tick, %0\n" : "=r" (_x))
+
+static int random_version(void)
+{
+	long tick;
+
+	RDTICK(tick);
+
+	return tick % (ADI_MAX_VERSION + 1);
+}
+
+#define MAX_RANGES_SUPPORTED	5
+static const char system_ram_str[] = "System RAM\n";
+static int range_count;
+static unsigned long long int start_addr[MAX_RANGES_SUPPORTED];
+static unsigned long long int   end_addr[MAX_RANGES_SUPPORTED];
+
+struct stats {
+	char		name[16];
+	unsigned long	total;
+	unsigned long	count;
+	unsigned long	bytes;
+};
+
+static struct stats read_stats = {
+	.name = "read", .total = 0, .count = 0, .bytes = 0};
+static struct stats pread_stats = {
+	.name = "pread", .total = 0, .count = 0, .bytes = 0};
+static struct stats write_stats = {
+	.name = "write", .total = 0, .count = 0, .bytes = 0};
+static struct stats pwrite_stats = {
+	.name = "pwrite", .total = 0, .count = 0, .bytes = 0};
+static struct stats seek_stats = {
+	.name = "seek", .total = 0, .count = 0, .bytes = 0};
+
+static void update_stats(struct stats * const ustats,
+			 unsigned long measurement, unsigned long bytes)
+{
+	ustats->total += measurement;
+	ustats->bytes += bytes;
+	ustats->count++;
+}
+
+static void print_ustats(const struct stats * const ustats)
+{
+	DEBUG_PRINT_L1("%s\t%7d\t%7.0f\t%7.0f\n",
+		       ustats->name, ustats->count,
+		       (float)ustats->total / (float)ustats->count,
+		       (float)ustats->bytes / (float)ustats->count);
+}
+
+static void print_stats(void)
+{
+	DEBUG_PRINT_L1("\nSyscall\tCall\tAvgTime\tAvgSize\n"
+		       "\tCount\t(ticks)\t(bytes)\n"
+		       "-------------------------------\n");
+
+	print_ustats(&read_stats);
+	print_ustats(&pread_stats);
+	print_ustats(&write_stats);
+	print_ustats(&pwrite_stats);
+	print_ustats(&seek_stats);
+}
+
+static int build_memory_map(void)
+{
+	char line[256];
+	FILE *fp;
+	int i;
+
+	range_count = 0;
+
+	fp = fopen("/proc/iomem", "r");
+	if (!fp) {
+		fprintf(stderr, "/proc/iomem: error %d: %s\n",
+			errno, strerror(errno));
+		return -errno;
+	}
+
+	while (fgets(line, sizeof(line), fp) != 0) {
+		if (strstr(line, system_ram_str)) {
+			char *dash, *end_ptr;
+
+			/* Given a line like this:
+			 * d0400000-10ffaffff : System RAM
+			 * replace the "-" with a space
+			 */
+			dash = strstr(line, "-");
+			dash[0] = 0x20;
+
+			start_addr[range_count] = strtoull(line, &end_ptr, 16);
+			end_addr[range_count] = strtoull(end_ptr, NULL, 16);
+			range_count++;
+		}
+	}
+
+	fclose(fp);
+
+	DEBUG_PRINT_L1("RAM Ranges\n");
+	for (i = 0; i < range_count; i++)
+		DEBUG_PRINT_L1("\trange %d: 0x%llx\t- 0x%llx\n",
+			       i, start_addr[i], end_addr[i]);
+
+	if (range_count == 0) {
+		fprintf(stderr, "No valid address ranges found.  Error.\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int read_adi(int fd, unsigned char *buf, int buf_sz)
+{
+	int ret, bytes_read = 0;
+	long start, end, elapsed_time = 0;
+
+	do {
+		RDTICK(start);
+		ret = read(fd, buf + bytes_read, buf_sz - bytes_read);
+		RDTICK(end);
+		if (ret < 0)
+			return -errno;
+
+		elapsed_time += end - start;
+		update_stats(&read_stats, elapsed_time, buf_sz);
+		bytes_read += ret;
+
+	} while (bytes_read < buf_sz);
+
+	DEBUG_PRINT_T("\tread elapsed timed = %ld\n", elapsed_time);
+	DEBUG_PRINT_L3("\tRead  %d bytes\n", bytes_read);
+
+	return bytes_read;
+}
+
+static int pread_adi(int fd, unsigned char *buf,
+		     int buf_sz, unsigned long offset)
+{
+	int ret, i, bytes_read = 0;
+	unsigned long cur_offset;
+	long start, end, elapsed_time = 0;
+
+	cur_offset = offset;
+	do {
+		RDTICK(start);
+		ret = pread(fd, buf + bytes_read, buf_sz - bytes_read,
+			    cur_offset);
+		RDTICK(end);
+		if (ret < 0)
+			return -errno;
+
+		elapsed_time += end - start;
+		update_stats(&pread_stats, elapsed_time, buf_sz);
+		bytes_read += ret;
+		cur_offset += ret;
+
+	} while (bytes_read < buf_sz);
+
+	DEBUG_PRINT_T("\tpread elapsed timed = %ld\n", elapsed_time);
+	DEBUG_PRINT_L3("\tRead  %d bytes starting at offset 0x%lx\n",
+		       bytes_read, offset);
+	for (i = 0; i < bytes_read; i++)
+		DEBUG_PRINT_L4("\t\t0x%lx\t%d\n", offset + i, buf[i]);
+
+	return bytes_read;
+}
+
+static int write_adi(int fd, const unsigned char * const buf, int buf_sz)
+{
+	int ret, bytes_written = 0;
+	long start, end, elapsed_time = 0;
+
+	do {
+		RDTICK(start);
+		ret = write(fd, buf + bytes_written, buf_sz - bytes_written);
+		RDTICK(end);
+		if (ret < 0)
+			return -errno;
+
+		elapsed_time += (end - start);
+		update_stats(&write_stats, elapsed_time, buf_sz);
+		bytes_written += ret;
+	} while (bytes_written < buf_sz);
+
+	DEBUG_PRINT_T("\twrite elapsed timed = %ld\n", elapsed_time);
+	DEBUG_PRINT_L3("\tWrote %d of %d bytes\n", bytes_written, buf_sz);
+
+	return bytes_written;
+}
+
+static int pwrite_adi(int fd, const unsigned char * const buf,
+		      int buf_sz, unsigned long offset)
+{
+	int ret, bytes_written = 0;
+	unsigned long cur_offset;
+	long start, end, elapsed_time = 0;
+
+	cur_offset = offset;
+
+	do {
+		RDTICK(start);
+		ret = pwrite(fd, buf + bytes_written,
+			     buf_sz - bytes_written, cur_offset);
+		RDTICK(end);
+		if (ret < 0) {
+			fprintf(stderr, "pwrite(): error %d: %s\n",
+				errno, strerror(errno));
+			return -errno;
+		}
+
+		elapsed_time += (end - start);
+		update_stats(&pwrite_stats, elapsed_time, buf_sz);
+		bytes_written += ret;
+		cur_offset += ret;
+
+	} while (bytes_written < buf_sz);
+
+	DEBUG_PRINT_T("\tpwrite elapsed timed = %ld\n", elapsed_time);
+	DEBUG_PRINT_L3("\tWrote %d of %d bytes starting at address 0x%lx\n",
+		       bytes_written, buf_sz, offset);
+
+	return bytes_written;
+}
+
+static off_t seek_adi(int fd, off_t offset, int whence)
+{
+	long start, end;
+	off_t ret;
+
+	RDTICK(start);
+	ret = lseek(fd, offset, whence);
+	RDTICK(end);
+	DEBUG_PRINT_L2("\tlseek ret = 0x%llx\n", ret);
+	if (ret < 0)
+		goto out;
+
+	DEBUG_PRINT_T("\tlseek elapsed timed = %ld\n", end - start);
+	update_stats(&seek_stats, end - start, 0);
+
+out:
+	(void)lseek(fd, 0, SEEK_END);
+	return ret;
+}
+
+static int test0_prpw_aligned_1byte(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		(end_addr[range_count - 1] - 0x1000) & ~(ADI_BLKSZ - 1);
+	unsigned char version[1], expected_version;
+	loff_t offset;
+	int ret;
+
+	version[0] = random_version();
+	expected_version = version[0];
+
+	offset = paddr / ADI_BLKSZ;
+
+	ret = pwrite_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	ret = pread_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	if (expected_version != version[0]) {
+		DEBUG_PRINT_L2("\tExpected version %d but read version %d\n",
+			       expected_version, version[0]);
+		TEST_STEP_FAILURE(-expected_version);
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+#define TEST1_VERSION_SZ	4096
+static int test1_prpw_aligned_4096bytes(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		(end_addr[range_count - 1] - 0x6000) & ~(ADI_BLKSZ - 1);
+	unsigned char version[TEST1_VERSION_SZ],
+		expected_version[TEST1_VERSION_SZ];
+	loff_t offset;
+	int ret, i;
+
+	for (i = 0; i < TEST1_VERSION_SZ; i++) {
+		version[i] = random_version();
+		expected_version[i] = version[i];
+	}
+
+	offset = paddr / ADI_BLKSZ;
+
+	ret = pwrite_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	ret = pread_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	for (i = 0; i < TEST1_VERSION_SZ; i++) {
+		if (expected_version[i] != version[i]) {
+			DEBUG_PRINT_L2(
+				"\tExpected version %d but read version %d\n",
+				expected_version, version[0]);
+			TEST_STEP_FAILURE(-expected_version[i]);
+		}
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+#define TEST2_VERSION_SZ	10327
+static int test2_prpw_aligned_10327bytes(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		(start_addr[0] + 0x6000) & ~(ADI_BLKSZ - 1);
+	unsigned char version[TEST2_VERSION_SZ],
+		expected_version[TEST2_VERSION_SZ];
+	loff_t offset;
+	int ret, i;
+
+	for (i = 0; i < TEST2_VERSION_SZ; i++) {
+		version[i] = random_version();
+		expected_version[i] = version[i];
+	}
+
+	offset = paddr / ADI_BLKSZ;
+
+	ret = pwrite_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	ret = pread_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	for (i = 0; i < TEST2_VERSION_SZ; i++) {
+		if (expected_version[i] != version[i]) {
+			DEBUG_PRINT_L2(
+				"\tExpected version %d but read version %d\n",
+				expected_version, version[0]);
+			TEST_STEP_FAILURE(-expected_version[i]);
+		}
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+#define TEST3_VERSION_SZ	12541
+static int test3_prpw_unaligned_12541bytes(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		((start_addr[0] + 0xC000) & ~(ADI_BLKSZ - 1)) + 17;
+	unsigned char version[TEST3_VERSION_SZ],
+		expected_version[TEST3_VERSION_SZ];
+	loff_t offset;
+	int ret, i;
+
+	for (i = 0; i < TEST3_VERSION_SZ; i++) {
+		version[i] = random_version();
+		expected_version[i] = version[i];
+	}
+
+	offset = paddr / ADI_BLKSZ;
+
+	ret = pwrite_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	ret = pread_adi(fd, version, sizeof(version), offset);
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	for (i = 0; i < TEST3_VERSION_SZ; i++) {
+		if (expected_version[i] != version[i]) {
+			DEBUG_PRINT_L2(
+				"\tExpected version %d but read version %d\n",
+				expected_version, version[0]);
+			TEST_STEP_FAILURE(-expected_version[i]);
+		}
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+static int test4_lseek(int fd)
+{
+#define	OFFSET_ADD	(0x100)
+#define OFFSET_SUBTRACT	(0xFFFFFFF000000000)
+
+	off_t offset_out, offset_in;
+	int ret;
+
+
+	offset_in = 0x123456789abcdef0;
+	offset_out = seek_adi(fd, offset_in, SEEK_SET);
+	if (offset_out != offset_in) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	/* seek to the current offset.  this should return EINVAL */
+	offset_out = seek_adi(fd, offset_in, SEEK_SET);
+	if (offset_out < 0 && errno == EINVAL)
+		DEBUG_PRINT_L2(
+			"\tSEEK_SET failed as designed. Not an error\n");
+	else {
+		ret = -2;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	offset_out = seek_adi(fd, 0, SEEK_CUR);
+	if (offset_out != offset_in) {
+		ret = -3;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	offset_out = seek_adi(fd, OFFSET_ADD, SEEK_CUR);
+	if (offset_out != (offset_in + OFFSET_ADD)) {
+		ret = -4;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	offset_out = seek_adi(fd, OFFSET_SUBTRACT, SEEK_CUR);
+	if (offset_out != (offset_in + OFFSET_ADD + OFFSET_SUBTRACT)) {
+		ret = -5;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+static int test5_rw_aligned_1byte(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		(end_addr[range_count - 1] - 0xF000) & ~(ADI_BLKSZ - 1);
+	unsigned char version, expected_version;
+	loff_t offset;
+	off_t oret;
+	int ret;
+
+	offset = paddr / ADI_BLKSZ;
+	version = expected_version = random_version();
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = write_adi(fd, &version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = read_adi(fd, &version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	if (expected_version != version) {
+		DEBUG_PRINT_L2("\tExpected version %d but read version %d\n",
+			       expected_version, version);
+		TEST_STEP_FAILURE(-expected_version);
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+#define TEST6_VERSION_SZ        9434
+static int test6_rw_aligned_9434bytes(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+		(end_addr[range_count - 1] - 0x5F000) & ~(ADI_BLKSZ - 1);
+	unsigned char version[TEST6_VERSION_SZ],
+		      expected_version[TEST6_VERSION_SZ];
+	loff_t offset;
+	off_t oret;
+	int ret, i;
+
+	offset = paddr / ADI_BLKSZ;
+	for (i = 0; i < TEST6_VERSION_SZ; i++)
+		version[i] = expected_version[i] = random_version();
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = write_adi(fd, version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	memset(version, 0, TEST6_VERSION_SZ);
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = read_adi(fd, version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	for (i = 0; i < TEST6_VERSION_SZ; i++) {
+		if (expected_version[i] != version[i]) {
+			DEBUG_PRINT_L2(
+				"\tExpected version %d but read version %d\n",
+				expected_version[i], version[i]);
+			TEST_STEP_FAILURE(-expected_version[i]);
+		}
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+#define TEST7_VERSION_SZ        14963
+static int test7_rw_aligned_14963bytes(int fd)
+{
+	/* somewhat arbitrarily chosen address */
+	unsigned long paddr =
+	  ((start_addr[range_count - 1] + 0xF000) & ~(ADI_BLKSZ - 1)) + 39;
+	unsigned char version[TEST7_VERSION_SZ],
+		      expected_version[TEST7_VERSION_SZ];
+	loff_t offset;
+	off_t oret;
+	int ret, i;
+
+	offset = paddr / ADI_BLKSZ;
+	for (i = 0; i < TEST7_VERSION_SZ; i++) {
+		version[i] = random_version();
+		expected_version[i] = version[i];
+	}
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = write_adi(fd, version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	memset(version, 0, TEST7_VERSION_SZ);
+
+	oret = seek_adi(fd, offset, SEEK_SET);
+	if (oret != offset) {
+		ret = -1;
+		TEST_STEP_FAILURE(ret);
+	}
+
+	ret = read_adi(fd, version, sizeof(version));
+	if (ret != sizeof(version))
+		TEST_STEP_FAILURE(ret);
+
+	for (i = 0; i < TEST7_VERSION_SZ; i++) {
+		if (expected_version[i] != version[i]) {
+			DEBUG_PRINT_L2(
+				"\tExpected version %d but read version %d\n",
+				expected_version[i], version[i]);
+			TEST_STEP_FAILURE(-expected_version[i]);
+		}
+
+		paddr += ADI_BLKSZ;
+	}
+
+	ret = 0;
+out:
+	RETURN_FROM_TEST(ret);
+}
+
+static int (*tests[])(int fd) = {
+	test0_prpw_aligned_1byte,
+	test1_prpw_aligned_4096bytes,
+	test2_prpw_aligned_10327bytes,
+	test3_prpw_unaligned_12541bytes,
+	test4_lseek,
+	test5_rw_aligned_1byte,
+	test6_rw_aligned_9434bytes,
+	test7_rw_aligned_14963bytes,
+};
+#define TEST_COUNT	ARRAY_SIZE(tests)
+
+int main(int argc, char *argv[])
+{
+	int fd, ret, test;
+
+	ret = build_memory_map();
+	if (ret < 0)
+		return ret;
+
+	fd = open("/dev/adi", O_RDWR);
+	if (fd < 0) {
+		fprintf(stderr, "open: error %d: %s\n",
+			errno, strerror(errno));
+		return -errno;
+	}
+
+	for (test = 0; test < TEST_COUNT; test++) {
+		DEBUG_PRINT_L1("Running test #%d\n", test);
+
+		ret = (*tests[test])(fd);
+		if (ret != 0)
+			ksft_test_result_fail("Test #%d failed: error %d\n",
+					      test, ret);
+		else
+			ksft_test_result_pass("Test #%d passed\n", test);
+	}
+
+	print_stats();
+	close(fd);
+
+	if (ksft_get_fail_cnt() > 0)
+		ksft_exit_fail();
+	else
+		ksft_exit_pass();
+
+	/* it's impossible to get here, but the compiler throws a warning
+	 * about control reaching the end of non-void function.  bah.
+	 */
+	return 0;
+}
diff --git a/tools/testing/selftests/sparc64/drivers/drivers_test.sh b/tools/testing/selftests/sparc64/drivers/drivers_test.sh
new file mode 100755
index 000000000000..6d08273b7532
--- /dev/null
+++ b/tools/testing/selftests/sparc64/drivers/drivers_test.sh
@@ -0,0 +1,30 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+
+SRC_TREE=../../../../
+
+test_run()
+{
+	if [ -f ${SRC_TREE}/drivers/char/adi.ko ]; then
+		insmod ${SRC_TREE}/drivers/char/adi.ko 2> /dev/null
+		if [ $? -ne 0 ]; then
+			rc=1
+		fi
+	else
+		# Use modprobe dry run to check for missing adi module
+		if ! /sbin/modprobe -q -n adi; then
+			echo "adi: [SKIP]"
+		elif /sbin/modprobe -q adi; then
+			echo "adi: ok"
+		else
+			echo "adi: [FAIL]"
+			rc=1
+		fi
+	fi
+	./adi-test
+	rmmod adi 2> /dev/null
+}
+
+rc=0
+test_run
+exit $rc
diff --git a/tools/testing/selftests/sparc64/run.sh b/tools/testing/selftests/sparc64/run.sh
new file mode 100755
index 000000000000..38ad61f9328e
--- /dev/null
+++ b/tools/testing/selftests/sparc64/run.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+(cd drivers; ./drivers_test.sh)
diff --git a/tools/testing/selftests/splice/.gitignore b/tools/testing/selftests/splice/.gitignore
new file mode 100644
index 000000000000..be8266f5d04c
--- /dev/null
+++ b/tools/testing/selftests/splice/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+default_file_splice_read
+splice_read
diff --git a/tools/testing/selftests/splice/Makefile b/tools/testing/selftests/splice/Makefile
new file mode 100644
index 000000000000..541cd826d5a5
--- /dev/null
+++ b/tools/testing/selftests/splice/Makefile
@@ -0,0 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0
+TEST_PROGS := default_file_splice_read.sh short_splice_read.sh
+TEST_GEN_PROGS_EXTENDED := default_file_splice_read splice_read
+
+include ../lib.mk
diff --git a/tools/testing/selftests/splice/config b/tools/testing/selftests/splice/config
new file mode 100644
index 000000000000..058c928368b8
--- /dev/null
+++ b/tools/testing/selftests/splice/config
@@ -0,0 +1 @@
+CONFIG_TEST_LKM=m
diff --git a/tools/testing/selftests/splice/default_file_splice_read.c b/tools/testing/selftests/splice/default_file_splice_read.c
new file mode 100644
index 000000000000..a3c6e5672e09
--- /dev/null
+++ b/tools/testing/selftests/splice/default_file_splice_read.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <fcntl.h>
+
+int main(int argc, char **argv)
+{
+        splice(0, 0, 1, 0, 1<<30, 0);
+	return 0;
+}
diff --git a/tools/testing/selftests/splice/default_file_splice_read.sh b/tools/testing/selftests/splice/default_file_splice_read.sh
new file mode 100755
index 000000000000..490db5a2e435
--- /dev/null
+++ b/tools/testing/selftests/splice/default_file_splice_read.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+n=`./default_file_splice_read </dev/null | wc -c`
+
+test "$n" = 0 && exit 0
+
+echo "default_file_splice_read broken: leaked $n"
+exit 1
diff --git a/tools/testing/selftests/splice/settings b/tools/testing/selftests/splice/settings
new file mode 100644
index 000000000000..89cedfc0d12b
--- /dev/null
+++ b/tools/testing/selftests/splice/settings
@@ -0,0 +1 @@
+timeout=5
diff --git a/tools/testing/selftests/splice/short_splice_read.sh b/tools/testing/selftests/splice/short_splice_read.sh
new file mode 100755
index 000000000000..4710e09f49fa
--- /dev/null
+++ b/tools/testing/selftests/splice/short_splice_read.sh
@@ -0,0 +1,133 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Test for mishandling of splice() on pseudofilesystems, which should catch
+# bugs like 11990a5bd7e5 ("module: Correctly truncate sysfs sections output")
+#
+# Since splice fallback was removed as part of the set_fs() rework, many of these
+# tests expect to fail now. See https://lore.kernel.org/lkml/202009181443.C2179FB@keescook/
+set -e
+
+DIR=$(dirname "$0")
+
+ret=0
+
+expect_success()
+{
+	title="$1"
+	shift
+
+	echo "" >&2
+	echo "$title ..." >&2
+
+	set +e
+	"$@"
+	rc=$?
+	set -e
+
+	case "$rc" in
+	0)
+		echo "ok: $title succeeded" >&2
+		;;
+	1)
+		echo "FAIL: $title should work" >&2
+		ret=$(( ret + 1 ))
+		;;
+	*)
+		echo "FAIL: something else went wrong" >&2
+		ret=$(( ret + 1 ))
+		;;
+	esac
+}
+
+expect_failure()
+{
+	title="$1"
+	shift
+
+	echo "" >&2
+	echo "$title ..." >&2
+
+	set +e
+	"$@"
+	rc=$?
+	set -e
+
+	case "$rc" in
+	0)
+		echo "FAIL: $title unexpectedly worked" >&2
+		ret=$(( ret + 1 ))
+		;;
+	1)
+		echo "ok: $title correctly failed" >&2
+		;;
+	*)
+		echo "FAIL: something else went wrong" >&2
+		ret=$(( ret + 1 ))
+		;;
+	esac
+}
+
+do_splice()
+{
+	filename="$1"
+	bytes="$2"
+	expected="$3"
+	report="$4"
+
+	out=$("$DIR"/splice_read "$filename" "$bytes" | cat)
+	if [ "$out" = "$expected" ] ; then
+		echo "      matched $report" >&2
+		return 0
+	else
+		echo "      no match: '$out' vs $report" >&2
+		return 1
+	fi
+}
+
+test_splice()
+{
+	filename="$1"
+
+	echo "  checking $filename ..." >&2
+
+	full=$(cat "$filename")
+	rc=$?
+	if [ $rc -ne 0 ] ; then
+		return 2
+	fi
+
+	two=$(echo "$full" | grep -m1 . | cut -c-2)
+
+	# Make sure full splice has the same contents as a standard read.
+	echo "    splicing 4096 bytes ..." >&2
+	if ! do_splice "$filename" 4096 "$full" "full read" ; then
+		return 1
+	fi
+
+	# Make sure a partial splice see the first two characters.
+	echo "    splicing 2 bytes ..." >&2
+	if ! do_splice "$filename" 2 "$two" "'$two'" ; then
+		return 1
+	fi
+
+	return 0
+}
+
+### /proc/$pid/ has no splice interface; these should all fail.
+expect_failure "proc_single_open(), seq_read() splice" test_splice /proc/$$/limits
+expect_failure "special open(), seq_read() splice" test_splice /proc/$$/comm
+
+### /proc/sys/ has a splice interface; these should all succeed.
+expect_success "proc_handler: proc_dointvec_minmax() splice" test_splice /proc/sys/fs/nr_open
+expect_success "proc_handler: proc_dostring() splice" test_splice /proc/sys/kernel/modprobe
+expect_success "proc_handler: special read splice" test_splice /proc/sys/kernel/version
+
+### /sys/ has no splice interface; these should all fail.
+if ! [ -d /sys/module/test_module/sections ] ; then
+	expect_success "test_module kernel module load" modprobe test_module
+fi
+expect_success "kernfs attr splice" test_splice /sys/module/test_module/coresize
+expect_success "kernfs binattr splice" test_splice /sys/module/test_module/sections/.init.text
+
+exit $ret
diff --git a/tools/testing/selftests/splice/splice_read.c b/tools/testing/selftests/splice/splice_read.c
new file mode 100644
index 000000000000..46dae6a25cfb
--- /dev/null
+++ b/tools/testing/selftests/splice/splice_read.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+int main(int argc, char *argv[])
+{
+	int fd;
+	size_t size;
+	ssize_t spliced;
+
+	if (argc < 2) {
+		fprintf(stderr, "Usage: %s INPUT [BYTES]\n", argv[0]);
+		return EXIT_FAILURE;
+	}
+
+	fd = open(argv[1], O_RDONLY);
+	if (fd < 0) {
+		perror(argv[1]);
+		return EXIT_FAILURE;
+	}
+
+	if (argc == 3)
+		size = atol(argv[2]);
+	else {
+		struct stat statbuf;
+
+		if (fstat(fd, &statbuf) < 0) {
+			perror(argv[1]);
+			return EXIT_FAILURE;
+		}
+
+		if (statbuf.st_size > INT_MAX) {
+			fprintf(stderr, "%s: Too big\n", argv[1]);
+			return EXIT_FAILURE;
+		}
+
+		size = statbuf.st_size;
+	}
+
+	/* splice(2) file to stdout. */
+	spliced = splice(fd, NULL, STDOUT_FILENO, NULL,
+		      size, SPLICE_F_MOVE);
+	if (spliced < 0) {
+		perror("splice");
+		return EXIT_FAILURE;
+	}
+
+	close(fd);
+	return EXIT_SUCCESS;
+}
diff --git a/tools/testing/selftests/static_keys/Makefile b/tools/testing/selftests/static_keys/Makefile
index 9cdadf37f114..aa64104c7860 100644
--- a/tools/testing/selftests/static_keys/Makefile
+++ b/tools/testing/selftests/static_keys/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile for static keys selftests
 
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
diff --git a/tools/testing/selftests/static_keys/config b/tools/testing/selftests/static_keys/config
new file mode 100644
index 000000000000..d538fb774b96
--- /dev/null
+++ b/tools/testing/selftests/static_keys/config
@@ -0,0 +1 @@
+CONFIG_TEST_STATIC_KEYS=m
diff --git a/tools/testing/selftests/static_keys/test_static_keys.sh b/tools/testing/selftests/static_keys/test_static_keys.sh
index 1261e3fa1e3a..3b0f17b81ac2 100644..100755
--- a/tools/testing/selftests/static_keys/test_static_keys.sh
+++ b/tools/testing/selftests/static_keys/test_static_keys.sh
@@ -1,9 +1,23 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs static keys kernel module tests
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+if ! /sbin/modprobe -q -n test_static_key_base; then
+	echo "static_keys: module test_static_key_base is not found [SKIP]"
+	exit $ksft_skip
+fi
+
+if ! /sbin/modprobe -q -n test_static_keys; then
+	echo "static_keys: module test_static_keys is not found [SKIP]"
+	exit $ksft_skip
+fi
+
 if /sbin/modprobe -q test_static_key_base; then
 	if /sbin/modprobe -q test_static_keys; then
-		echo "static_key: ok"
+		echo "static_keys: ok"
 		/sbin/modprobe -q -r test_static_keys
 		/sbin/modprobe -q -r test_static_key_base
 	else
@@ -11,6 +25,6 @@ if /sbin/modprobe -q test_static_key_base; then
 		/sbin/modprobe -q -r test_static_key_base
 	fi
 else
-	echo "static_key: [FAIL]"
+	echo "static_keys: [FAIL]"
 	exit 1
 fi
diff --git a/tools/testing/selftests/sync/.gitignore b/tools/testing/selftests/sync/.gitignore
new file mode 100644
index 000000000000..f1152357712f
--- /dev/null
+++ b/tools/testing/selftests/sync/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+sync_test
diff --git a/tools/testing/selftests/sync/Makefile b/tools/testing/selftests/sync/Makefile
new file mode 100644
index 000000000000..df0f91bf6890
--- /dev/null
+++ b/tools/testing/selftests/sync/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS += -O2 -g -std=gnu89 -pthread -Wall -Wextra
+CFLAGS += $(KHDR_INCLUDES)
+LDFLAGS += -pthread
+
+.PHONY: all clean
+
+include ../lib.mk
+
+# lib.mk TEST_CUSTOM_PROGS var is for custom tests that need special
+# build rules. lib.mk will run and install them.
+
+TEST_CUSTOM_PROGS := $(OUTPUT)/sync_test
+all: $(TEST_CUSTOM_PROGS)
+
+OBJS = sync_test.o sync.o
+
+TESTS += sync_alloc.o
+TESTS += sync_fence.o
+TESTS += sync_merge.o
+TESTS += sync_wait.o
+TESTS += sync_stress_parallelism.o
+TESTS += sync_stress_consumer.o
+TESTS += sync_stress_merge.o
+
+OBJS := $(patsubst %,$(OUTPUT)/%,$(OBJS))
+TESTS := $(patsubst %,$(OUTPUT)/%,$(TESTS))
+
+$(TEST_CUSTOM_PROGS): $(TESTS) $(OBJS)
+	$(CC) -o $(TEST_CUSTOM_PROGS) $(OBJS) $(TESTS) $(CFLAGS) $(LDFLAGS)
+
+$(OBJS): $(OUTPUT)/%.o: %.c
+	$(CC) -c $^ -o $@ $(CFLAGS)
+
+$(TESTS): $(OUTPUT)/%.o: %.c
+	$(CC) -c $^ -o $@
+
+EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(OBJS) $(TESTS)
diff --git a/tools/testing/selftests/sync/config b/tools/testing/selftests/sync/config
new file mode 100644
index 000000000000..64c60f38b446
--- /dev/null
+++ b/tools/testing/selftests/sync/config
@@ -0,0 +1,2 @@
+CONFIG_STAGING=y
+CONFIG_SW_SYNC=y
diff --git a/tools/testing/selftests/sync/sw_sync.h b/tools/testing/selftests/sync/sw_sync.h
new file mode 100644
index 000000000000..e2cfc6bad83e
--- /dev/null
+++ b/tools/testing/selftests/sync/sw_sync.h
@@ -0,0 +1,46 @@
+/*
+ *  sw_sync abstraction
+ *
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2013 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SELFTESTS_SW_SYNC_H
+#define SELFTESTS_SW_SYNC_H
+
+/*
+ * sw_sync is mainly intended for testing and should not be compiled into
+ * production kernels
+ */
+
+int sw_sync_timeline_create(void);
+int sw_sync_timeline_is_valid(int fd);
+int sw_sync_timeline_inc(int fd, unsigned int count);
+void sw_sync_timeline_destroy(int fd);
+
+int sw_sync_fence_create(int fd, const char *name, unsigned int value);
+int sw_sync_fence_is_valid(int fd);
+void sw_sync_fence_destroy(int fd);
+
+#endif
diff --git a/tools/testing/selftests/sync/sync.c b/tools/testing/selftests/sync/sync.c
new file mode 100644
index 000000000000..7741c0518d18
--- /dev/null
+++ b/tools/testing/selftests/sync/sync.c
@@ -0,0 +1,221 @@
+/*
+ *  sync / sw_sync abstraction
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <fcntl.h>
+#include <malloc.h>
+#include <poll.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "sync.h"
+#include "sw_sync.h"
+
+#include <linux/sync_file.h>
+
+
+/* SW_SYNC ioctls */
+struct sw_sync_create_fence_data {
+	__u32	value;
+	char	name[32];
+	__s32	fence;
+};
+
+#define SW_SYNC_IOC_MAGIC		'W'
+#define SW_SYNC_IOC_CREATE_FENCE	_IOWR(SW_SYNC_IOC_MAGIC, 0,\
+					      struct sw_sync_create_fence_data)
+#define SW_SYNC_IOC_INC			_IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
+
+
+int sync_wait(int fd, int timeout)
+{
+	struct pollfd fds;
+
+	fds.fd = fd;
+	fds.events = POLLIN | POLLERR;
+
+	return poll(&fds, 1, timeout);
+}
+
+int sync_merge(const char *name, int fd1, int fd2)
+{
+	struct sync_merge_data data = {};
+	int err;
+
+	data.fd2 = fd2;
+	strncpy(data.name, name, sizeof(data.name) - 1);
+	data.name[sizeof(data.name) - 1] = '\0';
+
+	err = ioctl(fd1, SYNC_IOC_MERGE, &data);
+	if (err < 0)
+		return err;
+
+	return data.fence;
+}
+
+static struct sync_file_info *sync_file_info(int fd)
+{
+	struct sync_file_info *info;
+	struct sync_fence_info *fence_info;
+	int err, num_fences;
+
+	info = calloc(1, sizeof(*info));
+	if (info == NULL)
+		return NULL;
+
+	err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
+	if (err < 0) {
+		free(info);
+		return NULL;
+	}
+
+	num_fences = info->num_fences;
+
+	if (num_fences) {
+		info->flags = 0;
+		info->num_fences = num_fences;
+
+		fence_info = calloc(num_fences, sizeof(*fence_info));
+		if (!fence_info) {
+			free(info);
+			return NULL;
+		}
+
+		info->sync_fence_info = (uint64_t)(unsigned long)fence_info;
+
+		err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
+		if (err < 0) {
+			free(fence_info);
+			free(info);
+			return NULL;
+		}
+	}
+
+	return info;
+}
+
+static void sync_file_info_free(struct sync_file_info *info)
+{
+	free((void *)(unsigned long)info->sync_fence_info);
+	free(info);
+}
+
+int sync_fence_size(int fd)
+{
+	int count;
+	struct sync_file_info *info = sync_file_info(fd);
+
+	if (!info)
+		return 0;
+
+	count = info->num_fences;
+
+	sync_file_info_free(info);
+
+	return count;
+}
+
+int sync_fence_count_with_status(int fd, int status)
+{
+	unsigned int i, count = 0;
+	struct sync_fence_info *fence_info = NULL;
+	struct sync_file_info *info = sync_file_info(fd);
+
+	if (!info)
+		return -1;
+
+	fence_info = (struct sync_fence_info *)(unsigned long)info->sync_fence_info;
+	for (i = 0 ; i < info->num_fences ; i++) {
+		if (fence_info[i].status == status)
+			count++;
+	}
+
+	sync_file_info_free(info);
+
+	return count;
+}
+
+int sw_sync_timeline_create(void)
+{
+	return open("/sys/kernel/debug/sync/sw_sync", O_RDWR);
+}
+
+int sw_sync_timeline_inc(int fd, unsigned int count)
+{
+	__u32 arg = count;
+
+	return ioctl(fd, SW_SYNC_IOC_INC, &arg);
+}
+
+int sw_sync_timeline_is_valid(int fd)
+{
+	int status;
+
+	if (fd == -1)
+		return 0;
+
+	status = fcntl(fd, F_GETFD, 0);
+	return (status >= 0);
+}
+
+void sw_sync_timeline_destroy(int fd)
+{
+	if (sw_sync_timeline_is_valid(fd))
+		close(fd);
+}
+
+int sw_sync_fence_create(int fd, const char *name, unsigned int value)
+{
+	struct sw_sync_create_fence_data data = {};
+	int err;
+
+	data.value = value;
+	strncpy(data.name, name, sizeof(data.name) - 1);
+	data.name[sizeof(data.name) - 1] = '\0';
+
+	err = ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data);
+	if (err < 0)
+		return err;
+
+	return data.fence;
+}
+
+int sw_sync_fence_is_valid(int fd)
+{
+	/* Same code! */
+	return sw_sync_timeline_is_valid(fd);
+}
+
+void sw_sync_fence_destroy(int fd)
+{
+	if (sw_sync_fence_is_valid(fd))
+		close(fd);
+}
diff --git a/tools/testing/selftests/sync/sync.h b/tools/testing/selftests/sync/sync.h
new file mode 100644
index 000000000000..fb7156148350
--- /dev/null
+++ b/tools/testing/selftests/sync/sync.h
@@ -0,0 +1,40 @@
+/*
+ *  sync abstraction
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SELFTESTS_SYNC_H
+#define SELFTESTS_SYNC_H
+
+#define FENCE_STATUS_ERROR	(-1)
+#define FENCE_STATUS_ACTIVE	(0)
+#define FENCE_STATUS_SIGNALED	(1)
+
+int sync_wait(int fd, int timeout);
+int sync_merge(const char *name, int fd1, int fd2);
+int sync_fence_size(int fd);
+int sync_fence_count_with_status(int fd, int status);
+
+#endif
diff --git a/tools/testing/selftests/sync/sync_alloc.c b/tools/testing/selftests/sync/sync_alloc.c
new file mode 100644
index 000000000000..66a28afc05dc
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_alloc.c
@@ -0,0 +1,74 @@
+/*
+ *  sync allocation tests
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_alloc_timeline(void)
+{
+	int timeline, valid;
+
+	timeline = sw_sync_timeline_create();
+	valid = sw_sync_timeline_is_valid(timeline);
+	ASSERT(valid, "Failure allocating timeline\n");
+
+	sw_sync_timeline_destroy(timeline);
+	return 0;
+}
+
+int test_alloc_fence(void)
+{
+	int timeline, fence, valid;
+
+	timeline = sw_sync_timeline_create();
+	valid = sw_sync_timeline_is_valid(timeline);
+	ASSERT(valid, "Failure allocating timeline\n");
+
+	fence = sw_sync_fence_create(timeline, "allocFence", 1);
+	valid = sw_sync_fence_is_valid(fence);
+	ASSERT(valid, "Failure allocating fence\n");
+
+	sw_sync_fence_destroy(fence);
+	sw_sync_timeline_destroy(timeline);
+	return 0;
+}
+
+int test_alloc_fence_negative(void)
+{
+	int fence, timeline;
+
+	timeline = sw_sync_timeline_create();
+	ASSERT(timeline > 0, "Failure allocating timeline\n");
+
+	fence = sw_sync_fence_create(-1, "fence", 1);
+	ASSERT(fence < 0, "Success allocating negative fence\n");
+
+	sw_sync_fence_destroy(fence);
+	sw_sync_timeline_destroy(timeline);
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/sync_fence.c b/tools/testing/selftests/sync/sync_fence.c
new file mode 100644
index 000000000000..13f175287da3
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_fence.c
@@ -0,0 +1,132 @@
+/*
+ *  sync fence tests with one timeline
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_fence_one_timeline_wait(void)
+{
+	int fence, valid, ret;
+	int timeline = sw_sync_timeline_create();
+
+	valid = sw_sync_timeline_is_valid(timeline);
+	ASSERT(valid, "Failure allocating timeline\n");
+
+	fence = sw_sync_fence_create(timeline, "allocFence", 5);
+	valid = sw_sync_fence_is_valid(fence);
+	ASSERT(valid, "Failure allocating fence\n");
+
+	/* Wait on fence until timeout */
+	ret = sync_wait(fence, 0);
+	ASSERT(ret == 0, "Failure waiting on fence until timeout\n");
+
+	/* Advance timeline from 0 -> 1 */
+	ret = sw_sync_timeline_inc(timeline, 1);
+	ASSERT(ret == 0, "Failure advancing timeline\n");
+
+	/* Wait on fence until timeout */
+	ret = sync_wait(fence, 0);
+	ASSERT(ret == 0, "Failure waiting on fence until timeout\n");
+
+	/* Signal the fence */
+	ret = sw_sync_timeline_inc(timeline, 4);
+	ASSERT(ret == 0, "Failure signaling the fence\n");
+
+	/* Wait successfully */
+	ret = sync_wait(fence, 0);
+	ASSERT(ret > 0, "Failure waiting on fence\n");
+
+	/* Go even further, and confirm wait still succeeds */
+	ret = sw_sync_timeline_inc(timeline, 10);
+	ASSERT(ret == 0, "Failure going further\n");
+	ret = sync_wait(fence, 0);
+	ASSERT(ret > 0, "Failure waiting ahead\n");
+
+	sw_sync_fence_destroy(fence);
+	sw_sync_timeline_destroy(timeline);
+
+	return 0;
+}
+
+int test_fence_one_timeline_merge(void)
+{
+	int a, b, c, d, valid;
+	int timeline = sw_sync_timeline_create();
+
+	/* create fence a,b,c and then merge them all into fence d */
+	a = sw_sync_fence_create(timeline, "allocFence", 1);
+	b = sw_sync_fence_create(timeline, "allocFence", 2);
+	c = sw_sync_fence_create(timeline, "allocFence", 3);
+
+	valid = sw_sync_fence_is_valid(a) &&
+		sw_sync_fence_is_valid(b) &&
+		sw_sync_fence_is_valid(c);
+	ASSERT(valid, "Failure allocating fences\n");
+
+	d = sync_merge("mergeFence", b, a);
+	d = sync_merge("mergeFence", c, d);
+	valid = sw_sync_fence_is_valid(d);
+	ASSERT(valid, "Failure merging fences\n");
+
+	/* confirm all fences have one active point (even d) */
+	ASSERT(sync_fence_count_with_status(a, FENCE_STATUS_ACTIVE) == 1,
+	       "a has too many active fences!\n");
+	ASSERT(sync_fence_count_with_status(a, FENCE_STATUS_ACTIVE) == 1,
+	       "b has too many active fences!\n");
+	ASSERT(sync_fence_count_with_status(a, FENCE_STATUS_ACTIVE) == 1,
+	       "c has too many active fences!\n");
+	ASSERT(sync_fence_count_with_status(a, FENCE_STATUS_ACTIVE) == 1,
+	       "d has too many active fences!\n");
+
+	/* confirm that d is not signaled until the max of a,b,c */
+	sw_sync_timeline_inc(timeline, 1);
+	ASSERT(sync_fence_count_with_status(a, FENCE_STATUS_SIGNALED) == 1,
+	       "a did not signal!\n");
+	ASSERT(sync_fence_count_with_status(d, FENCE_STATUS_ACTIVE) == 1,
+	       "d signaled too early!\n");
+
+	sw_sync_timeline_inc(timeline, 1);
+	ASSERT(sync_fence_count_with_status(b, FENCE_STATUS_SIGNALED) == 1,
+	       "b did not signal!\n");
+	ASSERT(sync_fence_count_with_status(d, FENCE_STATUS_ACTIVE) == 1,
+	       "d signaled too early!\n");
+
+	sw_sync_timeline_inc(timeline, 1);
+	ASSERT(sync_fence_count_with_status(c, FENCE_STATUS_SIGNALED) == 1,
+	       "c did not signal!\n");
+	ASSERT(sync_fence_count_with_status(d, FENCE_STATUS_ACTIVE) == 0 &&
+	       sync_fence_count_with_status(d, FENCE_STATUS_SIGNALED) == 1,
+	       "d did not signal!\n");
+
+	sw_sync_fence_destroy(d);
+	sw_sync_fence_destroy(c);
+	sw_sync_fence_destroy(b);
+	sw_sync_fence_destroy(a);
+	sw_sync_timeline_destroy(timeline);
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/sync_merge.c b/tools/testing/selftests/sync/sync_merge.c
new file mode 100644
index 000000000000..8914d43395c7
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_merge.c
@@ -0,0 +1,60 @@
+/*
+ *  sync fence merge tests
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_fence_merge_same_fence(void)
+{
+	int fence, valid, merged;
+	int timeline = sw_sync_timeline_create();
+
+	valid = sw_sync_timeline_is_valid(timeline);
+	ASSERT(valid, "Failure allocating timeline\n");
+
+	fence = sw_sync_fence_create(timeline, "allocFence", 5);
+	valid = sw_sync_fence_is_valid(fence);
+	ASSERT(valid, "Failure allocating fence\n");
+
+	merged = sync_merge("mergeFence", fence, fence);
+	valid = sw_sync_fence_is_valid(fence);
+	ASSERT(valid, "Failure merging fence\n");
+
+	ASSERT(sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED) == 0,
+	       "fence signaled too early!\n");
+
+	sw_sync_timeline_inc(timeline, 5);
+	ASSERT(sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED) == 1,
+	       "fence did not signal!\n");
+
+	sw_sync_fence_destroy(merged);
+	sw_sync_fence_destroy(fence);
+	sw_sync_timeline_destroy(timeline);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/sync_stress_consumer.c b/tools/testing/selftests/sync/sync_stress_consumer.c
new file mode 100644
index 000000000000..d9eff8d524f7
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_stress_consumer.c
@@ -0,0 +1,185 @@
+/*
+ *  sync stress test: producer/consumer
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <pthread.h>
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+/* IMPORTANT NOTE: if you see this test failing on your system, it may be
+ * due to a shortage of file descriptors. Please ensure your system has
+ * a sensible limit for this test to finish correctly.
+ */
+
+/* Returns 1 on error, 0 on success */
+static int busy_wait_on_fence(int fence)
+{
+	int error, active;
+
+	do {
+		error = sync_fence_count_with_status(fence, FENCE_STATUS_ERROR);
+		ASSERT(error == 0, "Error occurred on fence\n");
+		active = sync_fence_count_with_status(fence,
+						      FENCE_STATUS_ACTIVE);
+	} while (active);
+
+	return 0;
+}
+
+static struct {
+	int iterations;
+	int threads;
+	int counter;
+	int consumer_timeline;
+	int *producer_timelines;
+	pthread_mutex_t lock;
+} test_data_mpsc;
+
+static int mpsc_producer_thread(void *d)
+{
+	int id = (long)d;
+	int fence, valid, i;
+	int *producer_timelines = test_data_mpsc.producer_timelines;
+	int consumer_timeline = test_data_mpsc.consumer_timeline;
+	int iterations = test_data_mpsc.iterations;
+
+	for (i = 0; i < iterations; i++) {
+		fence = sw_sync_fence_create(consumer_timeline, "fence", i);
+		valid = sw_sync_fence_is_valid(fence);
+		ASSERT(valid, "Failure creating fence\n");
+
+		/*
+		 * Wait for the consumer to finish. Use alternate
+		 * means of waiting on the fence
+		 */
+
+		if ((iterations + id) % 8 != 0) {
+			ASSERT(sync_wait(fence, -1) > 0,
+			       "Failure waiting on fence\n");
+		} else {
+			ASSERT(busy_wait_on_fence(fence) == 0,
+			       "Failure waiting on fence\n");
+		}
+
+		/*
+		 * Every producer increments the counter, the consumer
+		 * checks and erases it
+		 */
+		pthread_mutex_lock(&test_data_mpsc.lock);
+		test_data_mpsc.counter++;
+		pthread_mutex_unlock(&test_data_mpsc.lock);
+
+		ASSERT(sw_sync_timeline_inc(producer_timelines[id], 1) == 0,
+		       "Error advancing producer timeline\n");
+
+		sw_sync_fence_destroy(fence);
+	}
+
+	return 0;
+}
+
+static int mpcs_consumer_thread(void)
+{
+	int fence, merged, tmp, valid, it, i;
+	int *producer_timelines = test_data_mpsc.producer_timelines;
+	int consumer_timeline = test_data_mpsc.consumer_timeline;
+	int iterations = test_data_mpsc.iterations;
+	int n = test_data_mpsc.threads;
+
+	for (it = 1; it <= iterations; it++) {
+		fence = sw_sync_fence_create(producer_timelines[0], "name", it);
+		for (i = 1; i < n; i++) {
+			tmp = sw_sync_fence_create(producer_timelines[i],
+						   "name", it);
+			merged = sync_merge("name", tmp, fence);
+			sw_sync_fence_destroy(tmp);
+			sw_sync_fence_destroy(fence);
+			fence = merged;
+		}
+
+		valid = sw_sync_fence_is_valid(fence);
+		ASSERT(valid, "Failure merging fences\n");
+
+		/*
+		 * Make sure we see an increment from every producer thread.
+		 * Vary the means by which we wait.
+		 */
+		if (iterations % 8 != 0) {
+			ASSERT(sync_wait(fence, -1) > 0,
+			       "Producers did not increment as expected\n");
+		} else {
+			ASSERT(busy_wait_on_fence(fence) == 0,
+			       "Producers did not increment as expected\n");
+		}
+
+		ASSERT(test_data_mpsc.counter == n * it,
+		       "Counter value mismatch!\n");
+
+		/* Release the producer threads */
+		ASSERT(sw_sync_timeline_inc(consumer_timeline, 1) == 0,
+		       "Failure releasing producer threads\n");
+
+		sw_sync_fence_destroy(fence);
+	}
+
+	return 0;
+}
+
+int test_consumer_stress_multi_producer_single_consumer(void)
+{
+	int iterations = 1 << 12;
+	int n = 5;
+	long i, ret;
+	int producer_timelines[n];
+	int consumer_timeline;
+	pthread_t threads[n];
+
+	consumer_timeline = sw_sync_timeline_create();
+	for (i = 0; i < n; i++)
+		producer_timelines[i] = sw_sync_timeline_create();
+
+	test_data_mpsc.producer_timelines = producer_timelines;
+	test_data_mpsc.consumer_timeline = consumer_timeline;
+	test_data_mpsc.iterations = iterations;
+	test_data_mpsc.threads = n;
+	test_data_mpsc.counter = 0;
+	pthread_mutex_init(&test_data_mpsc.lock, NULL);
+
+	for (i = 0; i < n; i++) {
+		pthread_create(&threads[i], NULL, (void * (*)(void *))
+			       mpsc_producer_thread, (void *)i);
+	}
+
+	/* Consumer thread runs here */
+	ret = mpcs_consumer_thread();
+
+	for (i = 0; i < n; i++)
+		pthread_join(threads[i], NULL);
+
+	return ret;
+}
diff --git a/tools/testing/selftests/sync/sync_stress_merge.c b/tools/testing/selftests/sync/sync_stress_merge.c
new file mode 100644
index 000000000000..99e83ef45fbf
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_stress_merge.c
@@ -0,0 +1,115 @@
+/*
+ *  sync stress test: merging
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_merge_stress_random_merge(void)
+{
+	int i, size, ret;
+	int timeline_count = 32;
+	int merge_count = 1024 * 32;
+	int timelines[timeline_count];
+	int fence_map[timeline_count];
+	int fence, tmpfence, merged, valid;
+	int timeline, timeline_offset, sync_point;
+
+	srand(time(NULL));
+
+	for (i = 0; i < timeline_count; i++)
+		timelines[i] = sw_sync_timeline_create();
+
+	fence = sw_sync_fence_create(timelines[0], "fence", 0);
+	valid = sw_sync_fence_is_valid(fence);
+	ASSERT(valid, "Failure creating fence\n");
+
+	memset(fence_map, -1, sizeof(fence_map));
+	fence_map[0] = 0;
+
+	/*
+	 * Randomly create sync_points out of a fixed set of timelines,
+	 * and merge them together
+	 */
+	for (i = 0; i < merge_count; i++) {
+		/* Generate sync_point. */
+		timeline_offset = rand() % timeline_count;
+		timeline = timelines[timeline_offset];
+		sync_point = rand();
+
+		/* Keep track of the latest sync_point in each timeline. */
+		if (fence_map[timeline_offset] == -1)
+			fence_map[timeline_offset] = sync_point;
+		else if (fence_map[timeline_offset] < sync_point)
+			fence_map[timeline_offset] = sync_point;
+
+		/* Merge */
+		tmpfence = sw_sync_fence_create(timeline, "fence", sync_point);
+		merged = sync_merge("merge", tmpfence, fence);
+		sw_sync_fence_destroy(tmpfence);
+		sw_sync_fence_destroy(fence);
+		fence = merged;
+
+		valid = sw_sync_fence_is_valid(merged);
+		ASSERT(valid, "Failure creating fence i\n");
+	}
+
+	size = 0;
+	for (i = 0; i < timeline_count; i++)
+		if (fence_map[i] != -1)
+			size++;
+
+	/* Confirm our map matches the fence. */
+	ASSERT(sync_fence_size(fence) == size,
+	       "Quantity of elements not matching\n");
+
+	/* Trigger the merged fence */
+	for (i = 0; i < timeline_count; i++) {
+		if (fence_map[i] != -1) {
+			ret = sync_wait(fence, 0);
+			ASSERT(ret == 0,
+			       "Failure waiting on fence until timeout\n");
+			/* Increment the timeline to the last sync_point */
+			sw_sync_timeline_inc(timelines[i], fence_map[i]);
+		}
+	}
+
+	/* Check that the fence is triggered. */
+	ret = sync_wait(fence, 0);
+	ASSERT(ret > 0, "Failure triggering fence\n");
+
+	sw_sync_fence_destroy(fence);
+
+	for (i = 0; i < timeline_count; i++)
+		sw_sync_timeline_destroy(timelines[i]);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/sync_stress_parallelism.c b/tools/testing/selftests/sync/sync_stress_parallelism.c
new file mode 100644
index 000000000000..e6c9be671dfc
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_stress_parallelism.c
@@ -0,0 +1,111 @@
+/*
+ *  sync stress test: parallelism
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <pthread.h>
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+static struct {
+	int iterations;
+	int timeline;
+	int counter;
+} test_data_two_threads;
+
+static int test_stress_two_threads_shared_timeline_thread(void *d)
+{
+	int thread_id = (long)d;
+	int timeline = test_data_two_threads.timeline;
+	int iterations = test_data_two_threads.iterations;
+	int fence, valid, ret, i;
+
+	for (i = 0; i < iterations; i++) {
+		fence = sw_sync_fence_create(timeline, "fence",
+					     i * 2 + thread_id);
+		valid = sw_sync_fence_is_valid(fence);
+		ASSERT(valid, "Failure allocating fence\n");
+
+		/* Wait on the prior thread to complete */
+		ret = sync_wait(fence, -1);
+		ASSERT(ret > 0, "Problem occurred on prior thread\n");
+
+		/*
+		 * Confirm the previous thread's writes are visible
+		 * and then increment
+		 */
+		ASSERT(test_data_two_threads.counter == i * 2 + thread_id,
+		       "Counter got damaged!\n");
+		test_data_two_threads.counter++;
+
+		/* Kick off the other thread */
+		ret = sw_sync_timeline_inc(timeline, 1);
+		ASSERT(ret == 0, "Advancing timeline failed\n");
+
+		sw_sync_fence_destroy(fence);
+	}
+
+	return 0;
+}
+
+int test_stress_two_threads_shared_timeline(void)
+{
+	pthread_t a, b;
+	int valid;
+	int timeline = sw_sync_timeline_create();
+
+	valid = sw_sync_timeline_is_valid(timeline);
+	ASSERT(valid, "Failure allocating timeline\n");
+
+	test_data_two_threads.iterations = 1 << 16;
+	test_data_two_threads.counter = 0;
+	test_data_two_threads.timeline = timeline;
+
+	/*
+	 * Use a single timeline to synchronize two threads
+	 * hammmering on the same counter.
+	 */
+
+	pthread_create(&a, NULL, (void *(*)(void *))
+		       test_stress_two_threads_shared_timeline_thread,
+		       (void *)0);
+	pthread_create(&b, NULL, (void *(*)(void *))
+		       test_stress_two_threads_shared_timeline_thread,
+		       (void *)1);
+
+	pthread_join(a, NULL);
+	pthread_join(b, NULL);
+
+	/* make sure the threads did not trample on one another */
+	ASSERT(test_data_two_threads.counter ==
+	       test_data_two_threads.iterations * 2,
+	       "Counter has unexpected value\n");
+
+	sw_sync_timeline_destroy(timeline);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/sync_test.c b/tools/testing/selftests/sync/sync_test.c
new file mode 100644
index 000000000000..2b44e5d88b63
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_test.c
@@ -0,0 +1,113 @@
+/*
+ *  sync test runner
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <errno.h>
+#include <string.h>
+
+#include "kselftest.h"
+#include "synctest.h"
+
+static int run_test(int (*test)(void), char *name)
+{
+	int result;
+	pid_t childpid;
+	int ret;
+
+	fflush(stdout);
+	childpid = fork();
+
+	if (childpid) {
+		waitpid(childpid, &result, 0);
+		if (WIFEXITED(result)) {
+			ret = WEXITSTATUS(result);
+			if (!ret)
+				ksft_test_result_pass("[RUN]\t%s\n", name);
+			else
+				ksft_test_result_fail("[RUN]\t%s\n", name);
+			return ret;
+		}
+		return 1;
+	}
+
+	exit(test());
+}
+
+static void sync_api_supported(void)
+{
+	struct stat sbuf;
+	int ret;
+
+	ret = stat("/sys/kernel/debug/sync/sw_sync", &sbuf);
+	if (!ret)
+		return;
+
+	if (errno == ENOENT)
+		ksft_exit_skip("Sync framework not supported by kernel\n");
+
+	if (errno == EACCES)
+		ksft_exit_skip("Run Sync test as root.\n");
+
+	ksft_exit_fail_msg("stat failed on /sys/kernel/debug/sync/sw_sync: %s",
+				strerror(errno));
+}
+
+int main(void)
+{
+	int err;
+
+	ksft_print_header();
+
+	sync_api_supported();
+	ksft_set_plan(3 + 7);
+
+	ksft_print_msg("[RUN]\tTesting sync framework\n");
+
+	RUN_TEST(test_alloc_timeline);
+	RUN_TEST(test_alloc_fence);
+	RUN_TEST(test_alloc_fence_negative);
+
+	RUN_TEST(test_fence_one_timeline_wait);
+	RUN_TEST(test_fence_one_timeline_merge);
+	RUN_TEST(test_fence_merge_same_fence);
+	RUN_TEST(test_fence_multi_timeline_wait);
+	RUN_TEST(test_stress_two_threads_shared_timeline);
+	RUN_TEST(test_consumer_stress_multi_producer_single_consumer);
+	RUN_TEST(test_merge_stress_random_merge);
+
+	err = ksft_get_fail_cnt();
+	if (err)
+		ksft_exit_fail_msg("%d out of %d sync tests failed\n",
+					err, ksft_test_num());
+
+	ksft_exit_pass();
+}
diff --git a/tools/testing/selftests/sync/sync_wait.c b/tools/testing/selftests/sync/sync_wait.c
new file mode 100644
index 000000000000..d69b752f6550
--- /dev/null
+++ b/tools/testing/selftests/sync/sync_wait.c
@@ -0,0 +1,91 @@
+/*
+ *  sync fence wait tests
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "sync.h"
+#include "sw_sync.h"
+#include "synctest.h"
+
+int test_fence_multi_timeline_wait(void)
+{
+	int timelineA, timelineB, timelineC;
+	int fenceA, fenceB, fenceC, merged;
+	int valid, active, signaled, ret;
+
+	timelineA = sw_sync_timeline_create();
+	timelineB = sw_sync_timeline_create();
+	timelineC = sw_sync_timeline_create();
+
+	fenceA = sw_sync_fence_create(timelineA, "fenceA", 5);
+	fenceB = sw_sync_fence_create(timelineB, "fenceB", 5);
+	fenceC = sw_sync_fence_create(timelineC, "fenceC", 5);
+
+	merged = sync_merge("mergeFence", fenceB, fenceA);
+	merged = sync_merge("mergeFence", fenceC, merged);
+
+	valid = sw_sync_fence_is_valid(merged);
+	ASSERT(valid, "Failure merging fence from various timelines\n");
+
+	/* Confirm fence isn't signaled */
+	active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
+	ASSERT(active == 3, "Fence signaled too early!\n");
+
+	ret = sync_wait(merged, 0);
+	ASSERT(ret == 0,
+	       "Failure waiting on fence until timeout\n");
+
+	ret = sw_sync_timeline_inc(timelineA, 5);
+	active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
+	ASSERT(active == 2 && signaled == 1,
+	       "Fence did not signal properly!\n");
+
+	ret = sw_sync_timeline_inc(timelineB, 5);
+	active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
+	ASSERT(active == 1 && signaled == 2,
+	       "Fence did not signal properly!\n");
+
+	ret = sw_sync_timeline_inc(timelineC, 5);
+	active = sync_fence_count_with_status(merged, FENCE_STATUS_ACTIVE);
+	signaled = sync_fence_count_with_status(merged, FENCE_STATUS_SIGNALED);
+	ASSERT(active == 0 && signaled == 3,
+	       "Fence did not signal properly!\n");
+
+	/* confirm you can successfully wait */
+	ret = sync_wait(merged, 100);
+	ASSERT(ret > 0, "Failure waiting on signaled fence\n");
+
+	sw_sync_fence_destroy(merged);
+	sw_sync_fence_destroy(fenceC);
+	sw_sync_fence_destroy(fenceB);
+	sw_sync_fence_destroy(fenceA);
+	sw_sync_timeline_destroy(timelineC);
+	sw_sync_timeline_destroy(timelineB);
+	sw_sync_timeline_destroy(timelineA);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/sync/synctest.h b/tools/testing/selftests/sync/synctest.h
new file mode 100644
index 000000000000..90a8e5369914
--- /dev/null
+++ b/tools/testing/selftests/sync/synctest.h
@@ -0,0 +1,67 @@
+/*
+ *  sync tests
+ *  Copyright 2015-2016 Collabora Ltd.
+ *
+ *  Based on the implementation from the Android Open Source Project,
+ *
+ *  Copyright 2012 Google, Inc
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ *  OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ *  ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *  OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SELFTESTS_SYNCTEST_H
+#define SELFTESTS_SYNCTEST_H
+
+#include <stdio.h>
+#include "../kselftest.h"
+
+#define ASSERT(cond, msg) do { \
+	if (!(cond)) { \
+		ksft_print_msg("[ERROR]\t%s", (msg)); \
+		return 1; \
+	} \
+} while (0)
+
+#define RUN_TEST(x) run_test((x), #x)
+
+/* Allocation tests */
+int test_alloc_timeline(void);
+int test_alloc_fence(void);
+int test_alloc_fence_negative(void);
+
+/* Fence tests with one timeline */
+int test_fence_one_timeline_wait(void);
+int test_fence_one_timeline_merge(void);
+
+/* Fence merge tests */
+int test_fence_merge_same_fence(void);
+
+/* Fence wait tests */
+int test_fence_multi_timeline_wait(void);
+
+/* Stress test - parallelism */
+int test_stress_two_threads_shared_timeline(void);
+
+/* Stress test - consumer */
+int test_consumer_stress_multi_producer_single_consumer(void);
+
+/* Stress test - merging */
+int test_merge_stress_random_merge(void);
+
+#endif
diff --git a/tools/testing/selftests/syscall_user_dispatch/.gitignore b/tools/testing/selftests/syscall_user_dispatch/.gitignore
new file mode 100644
index 000000000000..f539615ad5da
--- /dev/null
+++ b/tools/testing/selftests/syscall_user_dispatch/.gitignore
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+sud_test
+sud_benchmark
diff --git a/tools/testing/selftests/syscall_user_dispatch/Makefile b/tools/testing/selftests/syscall_user_dispatch/Makefile
new file mode 100644
index 000000000000..03c120270953
--- /dev/null
+++ b/tools/testing/selftests/syscall_user_dispatch/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+top_srcdir = ../../../..
+INSTALL_HDR_PATH = $(top_srcdir)/usr
+LINUX_HDR_PATH = $(INSTALL_HDR_PATH)/include/
+
+CFLAGS += -Wall -I$(LINUX_HDR_PATH)
+
+TEST_GEN_PROGS := sud_test sud_benchmark
+include ../lib.mk
diff --git a/tools/testing/selftests/syscall_user_dispatch/config b/tools/testing/selftests/syscall_user_dispatch/config
new file mode 100644
index 000000000000..039e303e59d7
--- /dev/null
+++ b/tools/testing/selftests/syscall_user_dispatch/config
@@ -0,0 +1 @@
+CONFIG_GENERIC_ENTRY=y
diff --git a/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c b/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c
new file mode 100644
index 000000000000..073a03702ff5
--- /dev/null
+++ b/tools/testing/selftests/syscall_user_dispatch/sud_benchmark.c
@@ -0,0 +1,202 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020 Collabora Ltd.
+ *
+ * Benchmark and test syscall user dispatch
+ */
+
+#define _GNU_SOURCE
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/time.h>
+#include <unistd.h>
+#include <sys/sysinfo.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+
+#ifndef PR_SET_SYSCALL_USER_DISPATCH
+# define PR_SET_SYSCALL_USER_DISPATCH	59
+# define PR_SYS_DISPATCH_OFF	0
+# define PR_SYS_DISPATCH_ON	1
+# define SYSCALL_DISPATCH_FILTER_ALLOW	0
+# define SYSCALL_DISPATCH_FILTER_BLOCK	1
+#endif
+
+#ifdef __NR_syscalls
+# define MAGIC_SYSCALL_1 (__NR_syscalls + 1) /* Bad Linux syscall number */
+#else
+# define MAGIC_SYSCALL_1 (0xff00)  /* Bad Linux syscall number */
+#endif
+
+/*
+ * To test returning from a sigsys with selector blocked, the test
+ * requires some per-architecture support (i.e. knowledge about the
+ * signal trampoline address).  On i386, we know it is on the vdso, and
+ * a small trampoline is open-coded for x86_64.  Other architectures
+ * that have a trampoline in the vdso will support TEST_BLOCKED_RETURN
+ * out of the box, but don't enable them until they support syscall user
+ * dispatch.
+ */
+#if defined(__x86_64__) || defined(__i386__)
+#define TEST_BLOCKED_RETURN
+#endif
+
+#ifdef __x86_64__
+void* (syscall_dispatcher_start)(void);
+void* (syscall_dispatcher_end)(void);
+#else
+unsigned long syscall_dispatcher_start = 0;
+unsigned long syscall_dispatcher_end = 0;
+#endif
+
+unsigned long trapped_call_count = 0;
+unsigned long native_call_count = 0;
+
+char selector;
+#define SYSCALL_BLOCK   (selector = SYSCALL_DISPATCH_FILTER_BLOCK)
+#define SYSCALL_UNBLOCK (selector = SYSCALL_DISPATCH_FILTER_ALLOW)
+
+#define CALIBRATION_STEP 100000
+#define CALIBRATE_TO_SECS 5
+int factor;
+
+static double one_sysinfo_step(void)
+{
+	struct timespec t1, t2;
+	int i;
+	struct sysinfo info;
+
+	clock_gettime(CLOCK_MONOTONIC, &t1);
+	for (i = 0; i < CALIBRATION_STEP; i++)
+		sysinfo(&info);
+	clock_gettime(CLOCK_MONOTONIC, &t2);
+	return (t2.tv_sec - t1.tv_sec) + 1.0e-9 * (t2.tv_nsec - t1.tv_nsec);
+}
+
+static void calibrate_set(void)
+{
+	double elapsed = 0;
+
+	printf("Calibrating test set to last ~%d seconds...\n", CALIBRATE_TO_SECS);
+
+	while (elapsed < 1) {
+		elapsed += one_sysinfo_step();
+		factor += CALIBRATE_TO_SECS;
+	}
+
+	printf("test iterations = %d\n", CALIBRATION_STEP * factor);
+}
+
+static double perf_syscall(void)
+{
+	unsigned int i;
+	double partial = 0;
+
+	for (i = 0; i < factor; ++i)
+		partial += one_sysinfo_step()/(CALIBRATION_STEP*factor);
+	return partial;
+}
+
+static void handle_sigsys(int sig, siginfo_t *info, void *ucontext)
+{
+	char buf[1024];
+	int len;
+
+	SYSCALL_UNBLOCK;
+
+	/* printf and friends are not signal-safe. */
+	len = snprintf(buf, 1024, "Caught sys_%x\n", info->si_syscall);
+	write(1, buf, len);
+
+	if (info->si_syscall == MAGIC_SYSCALL_1)
+		trapped_call_count++;
+	else
+		native_call_count++;
+
+#ifdef TEST_BLOCKED_RETURN
+	SYSCALL_BLOCK;
+#endif
+
+#ifdef __x86_64__
+	__asm__ volatile("movq $0xf, %rax");
+	__asm__ volatile("leaveq");
+	__asm__ volatile("add $0x8, %rsp");
+	__asm__ volatile("syscall_dispatcher_start:");
+	__asm__ volatile("syscall");
+	__asm__ volatile("nop"); /* Landing pad within dispatcher area */
+	__asm__ volatile("syscall_dispatcher_end:");
+#endif
+
+}
+
+int main(void)
+{
+	struct sigaction act;
+	double time1, time2;
+	int ret;
+	sigset_t mask;
+
+	memset(&act, 0, sizeof(act));
+	sigemptyset(&mask);
+
+	act.sa_sigaction = handle_sigsys;
+	act.sa_flags = SA_SIGINFO;
+	act.sa_mask = mask;
+
+	calibrate_set();
+
+	time1 = perf_syscall();
+	printf("Avg syscall time %.0lfns.\n", time1 * 1.0e9);
+
+	ret = sigaction(SIGSYS, &act, NULL);
+	if (ret) {
+		perror("Error sigaction:");
+		exit(-1);
+	}
+
+	fprintf(stderr, "Enabling syscall trapping.\n");
+
+	if (prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_ON,
+		  syscall_dispatcher_start,
+		  (syscall_dispatcher_end - syscall_dispatcher_start + 1),
+		  &selector)) {
+		perror("prctl failed\n");
+		exit(-1);
+	}
+
+	SYSCALL_BLOCK;
+	syscall(MAGIC_SYSCALL_1);
+
+#ifdef TEST_BLOCKED_RETURN
+	if (selector == SYSCALL_DISPATCH_FILTER_ALLOW) {
+		fprintf(stderr, "Failed to return with selector blocked.\n");
+		exit(-1);
+	}
+#endif
+
+	SYSCALL_UNBLOCK;
+
+	if (!trapped_call_count) {
+		fprintf(stderr, "syscall trapping does not work.\n");
+		exit(-1);
+	}
+
+	time2 = perf_syscall();
+
+	if (native_call_count) {
+		perror("syscall trapping intercepted more syscalls than expected\n");
+		exit(-1);
+	}
+
+	printf("trapped_call_count %lu, native_call_count %lu.\n",
+	       trapped_call_count, native_call_count);
+	printf("Avg syscall time %.0lfns.\n", time2 * 1.0e9);
+	printf("Interception overhead: %.1lf%% (+%.0lfns).\n",
+	       100.0 * (time2 / time1 - 1.0), 1.0e9 * (time2 - time1));
+	return 0;
+
+}
diff --git a/tools/testing/selftests/syscall_user_dispatch/sud_test.c b/tools/testing/selftests/syscall_user_dispatch/sud_test.c
new file mode 100644
index 000000000000..b855c6000287
--- /dev/null
+++ b/tools/testing/selftests/syscall_user_dispatch/sud_test.c
@@ -0,0 +1,380 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2020 Collabora Ltd.
+ *
+ * Test code for syscall user dispatch
+ */
+
+#define _GNU_SOURCE
+#include <sys/prctl.h>
+#include <sys/sysinfo.h>
+#include <sys/syscall.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdlib.h>
+
+#include <asm/unistd.h>
+#include "kselftest_harness.h"
+
+#ifndef PR_SET_SYSCALL_USER_DISPATCH
+# define PR_SET_SYSCALL_USER_DISPATCH	59
+# define PR_SYS_DISPATCH_OFF	0
+# define SYSCALL_DISPATCH_FILTER_ALLOW	0
+# define SYSCALL_DISPATCH_FILTER_BLOCK	1
+#endif
+
+#ifndef PR_SYS_DISPATCH_EXCLUSIVE_ON
+# define PR_SYS_DISPATCH_EXCLUSIVE_ON	1
+# define PR_SYS_DISPATCH_INCLUSIVE_ON	2
+#endif
+
+#ifndef SYS_USER_DISPATCH
+# define SYS_USER_DISPATCH	2
+#endif
+
+#ifdef __NR_syscalls
+# define MAGIC_SYSCALL_1 (__NR_syscalls + 1) /* Bad Linux syscall number */
+#else
+# define MAGIC_SYSCALL_1 (0xff00)  /* Bad Linux syscall number */
+#endif
+
+#define SYSCALL_DISPATCH_ON(x) ((x) = SYSCALL_DISPATCH_FILTER_BLOCK)
+#define SYSCALL_DISPATCH_OFF(x) ((x) = SYSCALL_DISPATCH_FILTER_ALLOW)
+
+/* Test Summary:
+ *
+ * - dispatch_trigger_sigsys: Verify if PR_SET_SYSCALL_USER_DISPATCH is
+ *   able to trigger SIGSYS on a syscall.
+ *
+ * - bad_selector: Test that a bad selector value triggers SIGSYS with
+ *   si_errno EINVAL.
+ *
+ * - bad_prctl_param: Test that the API correctly rejects invalid
+ *   parameters on prctl
+ *
+ * - dispatch_and_return: Test that a syscall is selectively dispatched
+ *   to userspace depending on the value of selector.
+ *
+ * - disable_dispatch: Test that the PR_SYS_DISPATCH_OFF correctly
+ *   disables the dispatcher
+ *
+ * - direct_dispatch_range: Test that a syscall within the allowed range
+ *   can bypass the dispatcher.
+ */
+
+TEST_SIGNAL(dispatch_trigger_sigsys, SIGSYS)
+{
+	char sel = SYSCALL_DISPATCH_FILTER_ALLOW;
+	struct sysinfo info;
+	int ret;
+
+	ret = sysinfo(&info);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, 0, &sel);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support CONFIG_SYSCALL_USER_DISPATCH");
+	}
+
+	SYSCALL_DISPATCH_ON(sel);
+
+	sysinfo(&info);
+
+	EXPECT_FALSE(true) {
+		TH_LOG("Unreachable!");
+	}
+}
+
+static void prctl_valid(struct __test_metadata *_metadata,
+			unsigned long op, unsigned long off,
+			unsigned long size, void *sel)
+{
+	EXPECT_EQ(0, prctl(PR_SET_SYSCALL_USER_DISPATCH, op, off, size, sel));
+}
+
+static void prctl_invalid(struct __test_metadata *_metadata,
+			  unsigned long op, unsigned long off,
+			  unsigned long size, void *sel, int err)
+{
+	EXPECT_EQ(-1, prctl(PR_SET_SYSCALL_USER_DISPATCH, op, off, size, sel));
+	EXPECT_EQ(err, errno);
+}
+
+TEST(bad_prctl_param)
+{
+	char sel = SYSCALL_DISPATCH_FILTER_ALLOW;
+	int op;
+
+	/* Invalid op */
+	op = -1;
+	prctl_invalid(_metadata, op, 0, 0, &sel, EINVAL);
+
+	/* PR_SYS_DISPATCH_OFF */
+	op = PR_SYS_DISPATCH_OFF;
+
+	/* offset != 0 */
+	prctl_invalid(_metadata, op, 0x1, 0x0, 0, EINVAL);
+
+	/* len != 0 */
+	prctl_invalid(_metadata, op, 0x0, 0xff, 0, EINVAL);
+
+	/* sel != NULL */
+	prctl_invalid(_metadata, op, 0x0, 0x0, &sel, EINVAL);
+
+	/* Valid parameter */
+	prctl_valid(_metadata, op, 0x0, 0x0, 0x0);
+
+	/* PR_SYS_DISPATCH_EXCLUSIVE_ON */
+	op = PR_SYS_DISPATCH_EXCLUSIVE_ON;
+
+	/* Dispatcher region is bad (offset > 0 && len == 0) */
+	prctl_invalid(_metadata, op, 0x1, 0x0, &sel, EINVAL);
+	prctl_invalid(_metadata, op, -1L, 0x0, &sel, EINVAL);
+
+	/* Invalid selector */
+	prctl_invalid(_metadata, op, 0x0, 0x1, (void *) -1, EFAULT);
+
+	/*
+	 * Dispatcher range overflows unsigned long
+	 */
+	prctl_invalid(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, 1, -1L, &sel, EINVAL);
+
+	/*
+	 * Allowed range overflows usigned long
+	 */
+	prctl_invalid(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, -1L, 0x1, &sel, EINVAL);
+
+	/* 0 len should fail for PR_SYS_DISPATCH_INCLUSIVE_ON */
+	prctl_invalid(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, 1, 0, 0, EINVAL);
+
+	/* Range wrap-around should fail */
+	prctl_invalid(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, -1L, 2, 0, EINVAL);
+
+	/* Normal range shouldn't fail */
+	prctl_valid(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, 2, 3, 0);
+
+	/* Invalid selector */
+	prctl_invalid(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, 2, 3, (void *) -1, EFAULT);
+}
+
+/*
+ * Use global selector for handle_sigsys tests, to avoid passing
+ * selector to signal handler
+ */
+char glob_sel;
+int nr_syscalls_emulated;
+int si_code;
+int si_errno;
+unsigned long syscall_addr;
+
+static void handle_sigsys(int sig, siginfo_t *info, void *ucontext)
+{
+	si_code = info->si_code;
+	si_errno = info->si_errno;
+	syscall_addr = (unsigned long)info->si_call_addr;
+
+	if (info->si_syscall == MAGIC_SYSCALL_1)
+		nr_syscalls_emulated++;
+
+	/* In preparation for sigreturn. */
+	SYSCALL_DISPATCH_OFF(glob_sel);
+
+	/*
+	 * The tests for argument handling assume that `syscall(x) == x`. This
+	 * is a NOP on x86 because the syscall number is passed in %rax, which
+	 * happens to also be the function ABI return register.  Other
+	 * architectures may need to swizzle the arguments around.
+	 */
+#if defined(__riscv)
+/* REG_A7 is not defined in libc headers */
+# define REG_A7 (REG_A0 + 7)
+
+	((ucontext_t *)ucontext)->uc_mcontext.__gregs[REG_A0] =
+			((ucontext_t *)ucontext)->uc_mcontext.__gregs[REG_A7];
+#endif
+}
+
+int setup_sigsys_handler(void)
+{
+	struct sigaction act;
+	sigset_t mask;
+
+	memset(&act, 0, sizeof(act));
+	sigemptyset(&mask);
+	act.sa_sigaction = handle_sigsys;
+	act.sa_flags = SA_SIGINFO;
+	act.sa_mask = mask;
+	return sigaction(SIGSYS, &act, NULL);
+}
+
+TEST(dispatch_and_return)
+{
+	long ret;
+
+	glob_sel = 0;
+	nr_syscalls_emulated = 0;
+	si_code = 0;
+	si_errno = 0;
+
+	ASSERT_EQ(0, setup_sigsys_handler());
+
+	/* Make sure selector is good prior to prctl. */
+	SYSCALL_DISPATCH_OFF(glob_sel);
+
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, 0, &glob_sel);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support CONFIG_SYSCALL_USER_DISPATCH");
+	}
+
+	/* MAGIC_SYSCALL_1 doesn't exist. */
+	SYSCALL_DISPATCH_OFF(glob_sel);
+	ret = syscall(MAGIC_SYSCALL_1);
+	EXPECT_EQ(-1, ret) {
+		TH_LOG("Dispatch triggered unexpectedly");
+	}
+
+	/* MAGIC_SYSCALL_1 should be emulated. */
+	nr_syscalls_emulated = 0;
+	SYSCALL_DISPATCH_ON(glob_sel);
+
+	ret = syscall(MAGIC_SYSCALL_1);
+	EXPECT_EQ(MAGIC_SYSCALL_1, ret) {
+		TH_LOG("Failed to intercept syscall");
+	}
+	EXPECT_EQ(1, nr_syscalls_emulated) {
+		TH_LOG("Failed to emulate syscall");
+	}
+	ASSERT_EQ(SYS_USER_DISPATCH, si_code) {
+		TH_LOG("Bad si_code in SIGSYS");
+	}
+	ASSERT_EQ(0, si_errno) {
+		TH_LOG("Bad si_errno in SIGSYS");
+	}
+}
+
+TEST_SIGNAL(bad_selector, SIGSYS)
+{
+	long ret;
+	struct sigaction act;
+	sigset_t mask;
+	struct sysinfo info;
+
+	glob_sel = SYSCALL_DISPATCH_FILTER_ALLOW;
+	nr_syscalls_emulated = 0;
+	si_code = 0;
+	si_errno = 0;
+
+	memset(&act, 0, sizeof(act));
+	sigemptyset(&mask);
+
+	act.sa_sigaction = handle_sigsys;
+	act.sa_flags = SA_SIGINFO;
+	act.sa_mask = mask;
+
+	ret = sigaction(SIGSYS, &act, NULL);
+	ASSERT_EQ(0, ret);
+
+	/* Make sure selector is good prior to prctl. */
+	SYSCALL_DISPATCH_OFF(glob_sel);
+
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, 0, &glob_sel);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support CONFIG_SYSCALL_USER_DISPATCH");
+	}
+
+	glob_sel = -1;
+
+	sysinfo(&info);
+
+	/* Even though it is ready to catch SIGSYS, the signal is
+	 * supposed to be uncatchable.
+	 */
+
+	EXPECT_FALSE(true) {
+		TH_LOG("Unreachable!");
+	}
+}
+
+TEST(disable_dispatch)
+{
+	int ret;
+	struct sysinfo info;
+	char sel = 0;
+
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, 0, &sel);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support CONFIG_SYSCALL_USER_DISPATCH");
+	}
+
+	/* MAGIC_SYSCALL_1 doesn't exist. */
+	SYSCALL_DISPATCH_OFF(glob_sel);
+
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_OFF, 0, 0, 0);
+	EXPECT_EQ(0, ret) {
+		TH_LOG("Failed to unset syscall user dispatch");
+	}
+
+	/* Shouldn't have any effect... */
+	SYSCALL_DISPATCH_ON(glob_sel);
+
+	ret = syscall(__NR_sysinfo, &info);
+	EXPECT_EQ(0, ret) {
+		TH_LOG("Dispatch triggered unexpectedly");
+	}
+}
+
+TEST(direct_dispatch_range)
+{
+	int ret = 0;
+	struct sysinfo info;
+	char sel = SYSCALL_DISPATCH_FILTER_ALLOW;
+
+	/*
+	 * Instead of calculating libc addresses; allow the entire
+	 * memory map and lock the selector.
+	 */
+	ret = prctl(PR_SET_SYSCALL_USER_DISPATCH, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, -1L, &sel);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Kernel does not support CONFIG_SYSCALL_USER_DISPATCH");
+	}
+
+	SYSCALL_DISPATCH_ON(sel);
+
+	ret = sysinfo(&info);
+	ASSERT_EQ(0, ret) {
+		TH_LOG("Dispatch triggered unexpectedly");
+	}
+}
+
+static void test_range(struct __test_metadata *_metadata,
+		       unsigned long op, unsigned long off,
+		       unsigned long size, bool dispatch)
+{
+	nr_syscalls_emulated = 0;
+	SYSCALL_DISPATCH_OFF(glob_sel);
+	EXPECT_EQ(0, prctl(PR_SET_SYSCALL_USER_DISPATCH, op, off, size, &glob_sel));
+	SYSCALL_DISPATCH_ON(glob_sel);
+	if (dispatch) {
+		EXPECT_EQ(syscall(MAGIC_SYSCALL_1), MAGIC_SYSCALL_1);
+		EXPECT_EQ(nr_syscalls_emulated, 1);
+	} else {
+		EXPECT_EQ(syscall(MAGIC_SYSCALL_1), -1);
+		EXPECT_EQ(nr_syscalls_emulated, 0);
+	}
+}
+
+TEST(dispatch_range)
+{
+	ASSERT_EQ(0, setup_sigsys_handler());
+	test_range(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, 0, 0, true);
+	test_range(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, syscall_addr, 1, false);
+	test_range(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, syscall_addr-100, 200, false);
+	test_range(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, syscall_addr+1, 100, true);
+	test_range(_metadata, PR_SYS_DISPATCH_EXCLUSIVE_ON, syscall_addr-100, 100, true);
+	test_range(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, syscall_addr, 1, true);
+	test_range(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, syscall_addr-1, 1, false);
+	test_range(_metadata, PR_SYS_DISPATCH_INCLUSIVE_ON, syscall_addr+1, 1, false);
+	SYSCALL_DISPATCH_OFF(glob_sel);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/sysctl/Makefile b/tools/testing/selftests/sysctl/Makefile
index b3c33e071f10..110301f9f5be 100644
--- a/tools/testing/selftests/sysctl/Makefile
+++ b/tools/testing/selftests/sysctl/Makefile
@@ -1,11 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0-only
 # Makefile for sysctl selftests.
 # Expects kernel.sysctl_writes_strict=1.
 
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests".
 all:
 
-TEST_PROGS := run_numerictests run_stringtests
-TEST_FILES := common_tests
+TEST_PROGS := sysctl.sh
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/sysctl/common_tests b/tools/testing/selftests/sysctl/common_tests
deleted file mode 100644
index 17d534b1b7b4..000000000000
--- a/tools/testing/selftests/sysctl/common_tests
+++ /dev/null
@@ -1,109 +0,0 @@
-#!/bin/sh
-
-TEST_FILE=$(mktemp)
-
-echo "== Testing sysctl behavior against ${TARGET} =="
-
-set_orig()
-{
-	echo "${ORIG}" > "${TARGET}"
-}
-
-set_test()
-{
-	echo "${TEST_STR}" > "${TARGET}"
-}
-
-verify()
-{
-	local seen
-	seen=$(cat "$1")
-	if [ "${seen}" != "${TEST_STR}" ]; then
-		return 1
-	fi
-	return 0
-}
-
-trap 'set_orig; rm -f "${TEST_FILE}"' EXIT
-
-rc=0
-
-echo -n "Writing test file ... "
-echo "${TEST_STR}" > "${TEST_FILE}"
-if ! verify "${TEST_FILE}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl is not set to test value ... "
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Writing sysctl from shell ... "
-set_test
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-echo -n "Resetting sysctl to original value ... "
-set_orig
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	exit 1
-else
-	echo "ok"
-fi
-
-# Now that we've validated the sanity of "set_test" and "set_orig",
-# we can use those functions to set starting states before running
-# specific behavioral tests.
-
-echo -n "Writing entire sysctl in single write ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing middle of sysctl after synchronized seek ... "
-set_test
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing beyond end of sysctl ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
-if verify "${TARGET}"; then
-        echo "FAIL" >&2
-        rc=1
-else
-        echo "ok"
-fi
-
-echo -n "Writing sysctl with multiple long writes ... "
-set_orig
-(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
-	dd of="${TARGET}" bs=50 2>/dev/null
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
diff --git a/tools/testing/selftests/sysctl/config b/tools/testing/selftests/sysctl/config
new file mode 100644
index 000000000000..fc263efd1fad
--- /dev/null
+++ b/tools/testing/selftests/sysctl/config
@@ -0,0 +1 @@
+CONFIG_TEST_SYSCTL=m
diff --git a/tools/testing/selftests/sysctl/run_numerictests b/tools/testing/selftests/sysctl/run_numerictests
deleted file mode 100755
index 8510f93f2d14..000000000000
--- a/tools/testing/selftests/sysctl/run_numerictests
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-SYSCTL="/proc/sys"
-TARGET="${SYSCTL}/vm/swappiness"
-ORIG=$(cat "${TARGET}")
-TEST_STR=$(( $ORIG + 1 ))
-
-. ./common_tests
-
-exit $rc
diff --git a/tools/testing/selftests/sysctl/run_stringtests b/tools/testing/selftests/sysctl/run_stringtests
deleted file mode 100755
index 90a9293d520c..000000000000
--- a/tools/testing/selftests/sysctl/run_stringtests
+++ /dev/null
@@ -1,77 +0,0 @@
-#!/bin/sh
-
-SYSCTL="/proc/sys"
-TARGET="${SYSCTL}/kernel/domainname"
-ORIG=$(cat "${TARGET}")
-TEST_STR="Testing sysctl"
-
-. ./common_tests
-
-# Only string sysctls support seeking/appending.
-MAXLEN=65
-
-echo -n "Writing entire sysctl in short writes ... "
-set_orig
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
-if ! verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Writing middle of sysctl after unsynchronized seek ... "
-set_test
-dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
-if verify "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
-	dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
-if ! grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl keeps original string on overflow append ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
-	dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl stays NULL terminated on write ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
-	dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-echo -n "Checking sysctl stays NULL terminated on overwrite ... "
-set_orig
-perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
-	dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
-if grep -q B "${TARGET}"; then
-	echo "FAIL" >&2
-	rc=1
-else
-	echo "ok"
-fi
-
-exit $rc
diff --git a/tools/testing/selftests/sysctl/sysctl.sh b/tools/testing/selftests/sysctl/sysctl.sh
new file mode 100755
index 000000000000..b2d8bd9026a7
--- /dev/null
+++ b/tools/testing/selftests/sysctl/sysctl.sh
@@ -0,0 +1,1099 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-2.0-or-later OR copyleft-next-0.3.1
+# Copyright (C) 2017 Luis R. Rodriguez <mcgrof@kernel.org>
+
+# This performs a series tests against the proc sysctl interface.
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+TEST_NAME="sysctl"
+TEST_DRIVER="test_${TEST_NAME}"
+TEST_DIR=$(dirname $0)
+TEST_FILE=$(mktemp)
+
+# This represents
+#
+# TEST_ID:TEST_COUNT:ENABLED:TARGET:SKIP_NO_TARGET
+#
+# TEST_ID: is the test id number
+# TEST_COUNT: number of times we should run the test
+# ENABLED: 1 if enabled, 0 otherwise
+# TARGET: test target file required on the test_sysctl module
+# SKIP_NO_TARGET: 1 skip if TARGET not there
+#                 0 run even though TARGET not there
+#
+# Once these are enabled please leave them as-is. Write your own test,
+# we have tons of space.
+ALL_TESTS="0001:1:1:int_0001:1"
+ALL_TESTS="$ALL_TESTS 0002:1:1:string_0001:1"
+ALL_TESTS="$ALL_TESTS 0003:1:1:int_0002:1"
+ALL_TESTS="$ALL_TESTS 0004:1:1:uint_0001:1"
+ALL_TESTS="$ALL_TESTS 0005:3:1:int_0003:1"
+ALL_TESTS="$ALL_TESTS 0006:50:1:bitmap_0001:1"
+ALL_TESTS="$ALL_TESTS 0007:1:1:boot_int:1"
+ALL_TESTS="$ALL_TESTS 0008:1:1:match_int:1"
+ALL_TESTS="$ALL_TESTS 0009:1:1:unregister_error:0"
+ALL_TESTS="$ALL_TESTS 0010:1:1:mnt/mnt_error:0"
+ALL_TESTS="$ALL_TESTS 0011:1:1:empty_add:0"
+ALL_TESTS="$ALL_TESTS 0012:1:1:u8_valid:0"
+
+function allow_user_defaults()
+{
+	if [ -z $DIR ]; then
+		DIR="/sys/module/test_sysctl/"
+	fi
+	if [ -z $DEFAULT_NUM_TESTS ]; then
+		DEFAULT_NUM_TESTS=50
+	fi
+	if [ -z $SYSCTL ]; then
+		SYSCTL="/proc/sys/debug/test_sysctl"
+	fi
+	if [ -z $PROD_SYSCTL ]; then
+		PROD_SYSCTL="/proc/sys"
+	fi
+	if [ -z $WRITES_STRICT ]; then
+		WRITES_STRICT="${PROD_SYSCTL}/kernel/sysctl_writes_strict"
+	fi
+}
+
+function check_production_sysctl_writes_strict()
+{
+	echo -n "Checking production write strict setting ... "
+	if [ ! -e ${WRITES_STRICT} ]; then
+		echo "FAIL, but skip in case of old kernel" >&2
+	else
+		old_strict=$(cat ${WRITES_STRICT})
+		if [ "$old_strict" = "1" ]; then
+			echo "OK"
+		else
+			echo "FAIL, strict value is 0 but force to 1 to continue" >&2
+			echo "1" > ${WRITES_STRICT}
+		fi
+	fi
+
+	if [ -z $PAGE_SIZE ]; then
+		PAGE_SIZE=$(getconf PAGESIZE)
+	fi
+	if [ -z $MAX_DIGITS ]; then
+		MAX_DIGITS=$(($PAGE_SIZE/8))
+	fi
+	if [ -z $INT_MAX ]; then
+		INT_MAX=$(getconf INT_MAX)
+	fi
+	if [ -z $UINT_MAX ]; then
+		UINT_MAX=$(getconf UINT_MAX)
+	fi
+}
+
+test_reqs()
+{
+	uid=$(id -u)
+	if [ $uid -ne 0 ]; then
+		echo $msg must be run as root >&2
+		exit $ksft_skip
+	fi
+
+	if ! which perl 2> /dev/null > /dev/null; then
+		echo "$0: You need perl installed"
+		exit $ksft_skip
+	fi
+	if ! which getconf 2> /dev/null > /dev/null; then
+		echo "$0: You need getconf installed"
+		exit $ksft_skip
+	fi
+	if ! which diff 2> /dev/null > /dev/null; then
+		echo "$0: You need diff installed"
+		exit $ksft_skip
+	fi
+}
+
+function load_req_mod()
+{
+	if [ ! -d $SYSCTL ]; then
+		if ! modprobe -q -n $TEST_DRIVER; then
+			echo "$0: module $TEST_DRIVER not found [SKIP]"
+			echo "You must set CONFIG_TEST_SYSCTL=m in your kernel" >&2
+			exit $ksft_skip
+		fi
+		modprobe $TEST_DRIVER
+		if [ $? -ne 0 ]; then
+			echo "$0: modprobe $TEST_DRIVER failed."
+			exit
+		fi
+	fi
+}
+
+reset_vals()
+{
+	VAL=""
+	TRIGGER=$(basename ${TARGET})
+	case "$TRIGGER" in
+		int_0001)
+			VAL="60"
+			;;
+		int_0002)
+			VAL="1"
+			;;
+		uint_0001)
+			VAL="314"
+			;;
+		string_0001)
+			VAL="(none)"
+			;;
+		bitmap_0001)
+			VAL=""
+			;;
+		*)
+			;;
+	esac
+	echo -n $VAL > $TARGET
+}
+
+set_orig()
+{
+	if [ ! -z $TARGET ] && [ ! -z $ORIG ]; then
+		if [ -f ${TARGET} ]; then
+			echo "${ORIG}" > "${TARGET}"
+		fi
+	fi
+}
+
+set_test()
+{
+	echo "${TEST_STR}" > "${TARGET}"
+}
+
+verify()
+{
+	local seen
+	seen=$(cat "$1")
+	if [ "${seen}" != "${TEST_STR}" ]; then
+		return 1
+	fi
+	return 0
+}
+
+# proc files get read a page at a time, which can confuse diff,
+# and get you incorrect results on proc files with long data. To use
+# diff against them you must first extract the output to a file, and
+# then compare against that file.
+verify_diff_proc_file()
+{
+	TMP_DUMP_FILE=$(mktemp)
+	cat $1 > $TMP_DUMP_FILE
+
+	if ! diff -w -q $TMP_DUMP_FILE $2; then
+		return 1
+	else
+		return 0
+	fi
+}
+
+verify_diff_w()
+{
+	echo "$TEST_STR" | diff -q -w -u - $1 > /dev/null
+	return $?
+}
+
+test_rc()
+{
+	if [[ $rc != 0 ]]; then
+		echo "Failed test, return value: $rc" >&2
+		exit $rc
+	fi
+}
+
+test_finish()
+{
+	set_orig
+	rm -f "${TEST_FILE}"
+
+	if [ ! -z ${old_strict} ]; then
+		echo ${old_strict} > ${WRITES_STRICT}
+	fi
+	exit $rc
+}
+
+run_numerictests()
+{
+	echo "== Testing sysctl behavior against ${TARGET} =="
+
+	rc=0
+
+	echo -n "Writing test file ... "
+	echo "${TEST_STR}" > "${TEST_FILE}"
+	if ! verify "${TEST_FILE}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Checking sysctl is not set to test value ... "
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Writing sysctl from shell ... "
+	set_test
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Resetting sysctl to original value ... "
+	set_orig
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		exit 1
+	else
+		echo "OK"
+	fi
+
+	# Now that we've validated the sanity of "set_test" and "set_orig",
+	# we can use those functions to set starting states before running
+	# specific behavioral tests.
+
+	echo -n "Writing entire sysctl in single write ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=4096 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Writing middle of sysctl after synchronized seek ... "
+	set_test
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 skip=1 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Writing beyond end of sysctl ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=20 seek=2 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Writing sysctl with multiple long writes ... "
+	set_orig
+	(perl -e 'print "A" x 50;'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" bs=50 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+check_failure()
+{
+	echo -n "Testing that $1 fails as expected ... "
+	reset_vals
+	TEST_STR="$1"
+	orig="$(cat $TARGET)"
+	echo -n "$TEST_STR" > $TARGET 2> /dev/null
+
+	# write should fail and $TARGET should retain its original value
+	if [ $? = 0 ] || [ "$(cat $TARGET)" != "$orig" ]; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+run_wideint_tests()
+{
+	# sysctl conversion functions receive a boolean sign and ulong
+	# magnitude; here we list the magnitudes we want to test (each of
+	# which will be tested in both positive and negative forms).  Since
+	# none of these values fit in 32 bits, writing them to an int- or
+	# uint-typed sysctl should fail.
+	local magnitudes=(
+		# common boundary-condition values (zero, +1, -1, INT_MIN,
+		# and INT_MAX respectively) if truncated to lower 32 bits
+		# (potential for being falsely deemed in range)
+		0x0000000100000000
+		0x0000000100000001
+		0x00000001ffffffff
+		0x0000000180000000
+		0x000000017fffffff
+
+		# these look like negatives, but without a leading '-' are
+		# actually large positives (should be rejected as above
+		# despite being zero/+1/-1/INT_MIN/INT_MAX in the lower 32)
+		0xffffffff00000000
+		0xffffffff00000001
+		0xffffffffffffffff
+		0xffffffff80000000
+		0xffffffff7fffffff
+	)
+
+	for sign in '' '-'; do
+		for mag in "${magnitudes[@]}"; do
+			check_failure "${sign}${mag}"
+		done
+	done
+}
+
+# Your test must accept digits 3 and 4 to use this
+run_limit_digit()
+{
+	echo -n "Checking ignoring spaces up to PAGE_SIZE works on write ... "
+	reset_vals
+
+	LIMIT=$((MAX_DIGITS -1))
+	TEST_STR="3"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Checking passing PAGE_SIZE of spaces fails on write ... "
+	reset_vals
+
+	LIMIT=$((MAX_DIGITS))
+	TEST_STR="4"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+# You are using an int
+run_limit_digit_int()
+{
+	echo -n "Testing INT_MAX works ... "
+	reset_vals
+	TEST_STR="$INT_MAX"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing INT_MAX + 1 will fail as expected ... "
+	reset_vals
+	let TEST_STR=$INT_MAX+1
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing negative values will work as expected ... "
+	reset_vals
+	TEST_STR="-3"
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+# You used an int array
+run_limit_digit_int_array()
+{
+	echo -n "Testing array works as expected ... "
+	TEST_STR="4 3 2 1"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing skipping trailing array elements works ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# If we only echo in two digits the last two are left intact
+	TEST_STR="100 101"
+	echo -n $TEST_STR > $TARGET
+	# After we echo in, to help diff we need to set on TEST_STR what
+	# we expect the result to be.
+	TEST_STR="100 101 2 1"
+
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing PAGE_SIZE limit on array works ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# Even if you use an int array, you are still restricted to
+	# MAX_DIGITS, this is a known limitation. Test limit works.
+	LIMIT=$((MAX_DIGITS -1))
+	TEST_STR="9"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	TEST_STR="9 101 2 1"
+	if ! verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing exceeding PAGE_SIZE limit fails as expected ... "
+	# Do not reset_vals, carry on the values from the last test.
+	# Now go over limit.
+	LIMIT=$((MAX_DIGITS))
+	TEST_STR="7"
+	(perl -e 'print " " x '$LIMIT';'; echo "${TEST_STR}") | \
+		dd of="${TARGET}" 2>/dev/null
+
+	TEST_STR="7 101 2 1"
+	if verify_diff_w "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+# You are using an unsigned int
+run_limit_digit_uint()
+{
+	echo -n "Testing UINT_MAX works ... "
+	reset_vals
+	TEST_STR="$UINT_MAX"
+	echo -n $TEST_STR > $TARGET
+
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing UINT_MAX + 1 will fail as expected ... "
+	reset_vals
+	TEST_STR=$(($UINT_MAX+1))
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+
+	echo -n "Testing negative values will not work as expected ... "
+	reset_vals
+	TEST_STR="-3"
+	echo -n $TEST_STR > $TARGET 2> /dev/null
+
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+	test_rc
+}
+
+run_stringtests()
+{
+	echo -n "Writing entire sysctl in short writes ... "
+	set_orig
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 2>/dev/null
+	if ! verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Writing middle of sysctl after unsynchronized seek ... "
+	set_test
+	dd if="${TEST_FILE}" of="${TARGET}" bs=1 seek=1 2>/dev/null
+	if verify "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Checking sysctl maxlen is at least $MAXLEN ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-2), "B";' | \
+		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+	if ! grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Checking sysctl keeps original string on overflow append ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+		dd of="${TARGET}" bs=$(( MAXLEN - 1 )) 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Checking sysctl stays NULL terminated on write ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "B";' | \
+		dd of="${TARGET}" bs="${MAXLEN}" 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	echo -n "Checking sysctl stays NULL terminated on overwrite ... "
+	set_orig
+	perl -e 'print "A" x ('"${MAXLEN}"'-1), "BB";' | \
+		dd of="${TARGET}" bs=$(( $MAXLEN + 1 )) 2>/dev/null
+	if grep -q B "${TARGET}"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+	fi
+
+	test_rc
+}
+
+target_exists()
+{
+	TARGET="${SYSCTL}/$1"
+	TEST_ID="$2"
+
+	if [ ! -f ${TARGET} ] ; then
+		return 0
+	fi
+	return 1
+}
+
+run_bitmaptest() {
+	# Total length of bitmaps string to use, a bit under
+	# the maximum input size of the test node
+	LENGTH=$((RANDOM % 65000))
+
+	# First bit to set
+	BIT=$((RANDOM % 1024))
+
+	# String containing our list of bits to set
+	TEST_STR=$BIT
+
+	# build up the string
+	while [ "${#TEST_STR}" -le "$LENGTH" ]; do
+		# Make sure next entry is discontiguous,
+		# skip ahead at least 2
+		BIT=$((BIT + $((2 + RANDOM % 10))))
+
+		# Add new bit to the list
+		TEST_STR="${TEST_STR},${BIT}"
+
+		# Randomly make it a range
+		if [ "$((RANDOM % 2))" -eq "1" ]; then
+			RANGE_END=$((BIT + $((1 + RANDOM % 10))))
+			TEST_STR="${TEST_STR}-${RANGE_END}"
+			BIT=$RANGE_END
+		fi
+	done
+
+	echo -n "Checking bitmap handler ... "
+	TEST_FILE=$(mktemp)
+	echo -n "$TEST_STR" > $TEST_FILE
+
+	cat $TEST_FILE > $TARGET 2> /dev/null
+	if [ $? -ne 0 ]; then
+		echo "FAIL" >&2
+		rc=1
+		test_rc
+	fi
+
+	if ! verify_diff_proc_file "$TARGET" "$TEST_FILE"; then
+		echo "FAIL" >&2
+		rc=1
+	else
+		echo "OK"
+		rc=0
+	fi
+	test_rc
+}
+
+sysctl_test_0001()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0001)"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_wideint_tests
+	run_limit_digit
+}
+
+sysctl_test_0002()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0002)"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR="Testing sysctl"
+	# Only string sysctls support seeking/appending.
+	MAXLEN=65
+
+	run_numerictests
+	run_stringtests
+}
+
+sysctl_test_0003()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0003)"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_wideint_tests
+	run_limit_digit
+	run_limit_digit_int
+}
+
+sysctl_test_0004()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0004)"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+	TEST_STR=$(( $ORIG + 1 ))
+
+	run_numerictests
+	run_wideint_tests
+	run_limit_digit
+	run_limit_digit_uint
+}
+
+sysctl_test_0005()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0005)"
+	reset_vals
+	ORIG=$(cat "${TARGET}")
+
+	run_limit_digit_int_array
+}
+
+sysctl_test_0006()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0006)"
+	reset_vals
+	ORIG=""
+	run_bitmaptest
+}
+
+sysctl_test_0007()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0007)"
+	echo -n "Testing if $TARGET is set to 1 ... "
+
+	if [ ! -f $TARGET ]; then
+		echo -e "SKIPPING\n$TARGET is not present"
+		return $ksft_skip
+	fi
+
+	if [ -d $DIR ]; then
+		echo -e "SKIPPING\nTest only possible if sysctl_test is built-in, not module:"
+		cat $TEST_DIR/config >&2
+		return $ksft_skip
+	fi
+
+	ORIG=$(cat "${TARGET}")
+
+	if [ x$ORIG = "x1" ]; then
+		echo "OK"
+		return 0
+	fi
+
+	if [ ! -f /proc/cmdline ]; then
+		echo -e "SKIPPING\nThere is no /proc/cmdline to check for parameter"
+		return $ksft_skip
+	fi
+
+	FOUND=$(grep -c "sysctl[./]debug[./]test_sysctl[./]boot_int=1" /proc/cmdline)
+	if [ $FOUND = "1" ]; then
+		echo -e "FAIL\nKernel param found but $TARGET is not 1." >&2
+		rc=1
+		test_rc
+	fi
+
+	echo -e "SKIPPING\nExpected kernel parameter missing."
+	echo "Kernel must be booted with parameter: sysctl.debug.test_sysctl.boot_int=1"
+	return $ksft_skip
+}
+
+sysctl_test_0008()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0008)"
+	echo -n "Testing if $TARGET is matched in kernel ... "
+
+	if [ ! -f $TARGET ]; then
+		echo -e "SKIPPING\n$TARGET is not present"
+		return $ksft_skip
+	fi
+
+	ORIG_VALUE=$(cat "${TARGET}")
+
+	if [ $ORIG_VALUE -ne 1 ]; then
+		echo "FAIL" >&2
+		rc=1
+		test_rc
+	fi
+
+	echo "OK"
+	return 0
+}
+
+sysctl_test_0009()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0009)"
+	echo -n "Testing if $TARGET unregistered correctly ... "
+	if [ -d $TARGET ]; then
+		echo "FAIL" >&2
+		rc=1
+		test_rc
+	fi
+
+	echo "OK"
+	return 0
+}
+
+sysctl_test_0010()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0010)"
+	echo -n "Testing that $TARGET was not created ... "
+	if [ -d $TARGET ]; then
+		echo "FAIL" >&2
+		rc=1
+		test_rc
+	fi
+
+	echo "OK"
+	return 0
+}
+
+sysctl_test_0011()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0011)"
+	echo -n "Testing empty dir handling in ${TARGET} ... "
+	if [ ! -d ${TARGET} ]; then
+		echo -e "FAIL\nCould not create ${TARGET}" >&2
+		rc=1
+		test_rc
+	fi
+
+	TARGET2="${TARGET}/empty"
+	if [ ! -d ${TARGET2} ]; then
+		echo -e "FAIL\nCould not create ${TARGET2}" >&2
+		rc=1
+		test_rc
+	fi
+
+	echo "OK"
+	return 0
+}
+
+sysctl_test_0012()
+{
+	TARGET="${SYSCTL}/$(get_test_target 0012)"
+	echo -n "Testing u8 range check in sysctl table check in ${TARGET} ... "
+	if [ ! -f ${TARGET} ]; then
+		echo -e "FAIL\nCould not create ${TARGET}" >&2
+		rc=1
+		test_rc
+	fi
+
+	local u8over_msg=$(dmesg | grep "u8_over range value" | wc -l)
+	if [ ! ${u8over_msg} -eq 1 ]; then
+		echo -e "FAIL\nu8 overflow not detected" >&2
+		rc=1
+		test_rc
+	fi
+
+	local u8under_msg=$(dmesg | grep "u8_under range value" | wc -l)
+	if [ ! ${u8under_msg} -eq 1 ]; then
+		echo -e "FAIL\nu8 underflow not detected" >&2
+		rc=1
+		test_rc
+	fi
+
+	echo "OK"
+	return 0
+}
+
+list_tests()
+{
+	echo "Test ID list:"
+	echo
+	echo "TEST_ID x NUM_TEST"
+	echo "TEST_ID:   Test ID"
+	echo "NUM_TESTS: Recommended number of times to run the test"
+	echo
+	echo "0001 x $(get_test_count 0001) - tests proc_dointvec_minmax()"
+	echo "0002 x $(get_test_count 0002) - tests proc_dostring()"
+	echo "0003 x $(get_test_count 0003) - tests proc_dointvec()"
+	echo "0004 x $(get_test_count 0004) - tests proc_douintvec()"
+	echo "0005 x $(get_test_count 0005) - tests proc_douintvec() array"
+	echo "0006 x $(get_test_count 0006) - tests proc_do_large_bitmap()"
+	echo "0007 x $(get_test_count 0007) - tests setting sysctl from kernel boot param"
+	echo "0008 x $(get_test_count 0008) - tests sysctl macro values match"
+	echo "0009 x $(get_test_count 0009) - tests sysct unregister"
+	echo "0010 x $(get_test_count 0010) - tests sysct mount point"
+	echo "0011 x $(get_test_count 0011) - tests empty directories"
+	echo "0012 x $(get_test_count 0012) - tests range check for u8 proc_handler"
+}
+
+usage()
+{
+	NUM_TESTS=$(grep -o ' ' <<<"$ALL_TESTS" | grep -c .)
+	let NUM_TESTS=$NUM_TESTS+1
+	MAX_TEST=$(printf "%04d\n" $NUM_TESTS)
+	echo "Usage: $0 [ -t <4-number-digit> ] | [ -w <4-number-digit> ] |"
+	echo "		 [ -s <4-number-digit> ] | [ -c <4-number-digit> <test- count>"
+	echo "           [ all ] [ -h | --help ] [ -l ]"
+	echo ""
+	echo "Valid tests: 0001-$MAX_TEST"
+	echo ""
+	echo "    all     Runs all tests (default)"
+	echo "    -t      Run test ID the recommended number of times"
+	echo "    -w      Watch test ID run until it runs into an error"
+	echo "    -c      Run test ID once"
+	echo "    -s      Run test ID x test-count number of times"
+	echo "    -l      List all test ID list"
+	echo " -h|--help  Help"
+	echo
+	echo "If an error every occurs execution will immediately terminate."
+	echo "If you are adding a new test try using -w <test-ID> first to"
+	echo "make sure the test passes a series of tests."
+	echo
+	echo Example uses:
+	echo
+	echo "$TEST_NAME.sh            -- executes all tests"
+	echo "$TEST_NAME.sh -t 0002    -- Executes test ID 0002 the recommended number of times"
+	echo "$TEST_NAME.sh -w 0002    -- Watch test ID 0002 run until an error occurs"
+	echo "$TEST_NAME.sh -s 0002    -- Run test ID 0002 once"
+	echo "$TEST_NAME.sh -c 0002 3  -- Run test ID 0002 three times"
+	echo
+	list_tests
+	exit 1
+}
+
+function test_num()
+{
+	re='^[0-9]+$'
+	if ! [[ $1 =~ $re ]]; then
+		usage
+	fi
+}
+function remove_leading_zeros()
+{
+	echo $1 | sed 's/^0*//'
+}
+
+function get_test_count()
+{
+	test_num $1
+	awk_field=$(remove_leading_zeros $1)
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
+	echo ${TEST_DATA} | awk -F":" '{print $2}'
+}
+
+function get_test_enabled()
+{
+	test_num $1
+	awk_field=$(remove_leading_zeros $1)
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
+	echo ${TEST_DATA} | awk -F":" '{print $3}'
+}
+
+function get_test_target()
+{
+	test_num $1
+	awk_field=$(remove_leading_zeros $1)
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
+	echo ${TEST_DATA} | awk -F":" '{print $4}'
+}
+
+function get_test_skip_no_target()
+{
+	test_num $1
+	awk_field=$(remove_leading_zeros $1)
+	TEST_DATA=$(echo $ALL_TESTS | awk '{print $'$awk_field'}')
+	echo ${TEST_DATA} | awk -F":" '{print $5}'
+}
+
+function skip_test()
+{
+	TEST_ID=$1
+	TEST_TARGET=$2
+	if target_exists $TEST_TARGET $TEST_ID; then
+		TEST_SKIP=$(get_test_skip_no_target $TEST_ID)
+		if [[ $TEST_SKIP -eq "1" ]]; then
+			echo "Target $TEST_TARGET for test $TEST_ID does not exist ... SKIPPING"
+			return 0
+		fi
+	fi
+	return 1
+}
+
+function run_all_tests()
+{
+	for i in $ALL_TESTS ; do
+		TEST_ID=${i%:*:*:*:*}
+		ENABLED=$(get_test_enabled $TEST_ID)
+		TEST_COUNT=$(get_test_count $TEST_ID)
+		TEST_TARGET=$(get_test_target $TEST_ID)
+
+		if [[ $ENABLED -eq "1" ]]; then
+			test_case $TEST_ID $TEST_COUNT $TEST_TARGET
+		fi
+	done
+}
+
+function watch_log()
+{
+	if [ $# -ne 3 ]; then
+		clear
+	fi
+	date
+	echo "Running test: $2 - run #$1"
+}
+
+function watch_case()
+{
+	i=0
+	while [ 1 ]; do
+
+		if [ $# -eq 1 ]; then
+			test_num $1
+			watch_log $i ${TEST_NAME}_test_$1
+			${TEST_NAME}_test_$1
+		else
+			watch_log $i all
+			run_all_tests
+		fi
+		let i=$i+1
+	done
+}
+
+function test_case()
+{
+	TEST_ID=$1
+	NUM_TESTS=$2
+	TARGET=$3
+
+	if skip_test $TEST_ID $TARGET; then
+		return
+	fi
+
+	i=0
+	while [ $i -lt $NUM_TESTS ]; do
+		test_num $TEST_ID
+		watch_log $i ${TEST_NAME}_test_${TEST_ID} noclear
+		RUN_TEST=${TEST_NAME}_test_${TEST_ID}
+		$RUN_TEST
+		let i=$i+1
+	done
+}
+
+function parse_args()
+{
+	if [ $# -eq 0 ]; then
+		run_all_tests
+	else
+		if [[ "$1" = "all" ]]; then
+			run_all_tests
+		elif [[ "$1" = "-w" ]]; then
+			shift
+			watch_case $@
+		elif [[ "$1" = "-t" ]]; then
+			shift
+			test_num $1
+			test_case $1 $(get_test_count $1) $(get_test_target $1)
+		elif [[ "$1" = "-c" ]]; then
+			shift
+			test_num $1
+			test_num $2
+			test_case $1 $2 $(get_test_target $1)
+		elif [[ "$1" = "-s" ]]; then
+			shift
+			test_case $1 1 $(get_test_target $1)
+		elif [[ "$1" = "-l" ]]; then
+			list_tests
+		elif [[ "$1" = "-h" || "$1" = "--help" ]]; then
+			usage
+		else
+			usage
+		fi
+	fi
+}
+
+test_reqs
+allow_user_defaults
+check_production_sysctl_writes_strict
+load_req_mod
+
+trap "test_finish" EXIT
+
+parse_args $@
+
+exit 0
diff --git a/tools/testing/selftests/tc-testing/.gitignore b/tools/testing/selftests/tc-testing/.gitignore
new file mode 100644
index 000000000000..9fe1cef72728
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/.gitignore
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+__pycache__/
+*.pyc
+*.xml
+*.tap
+tdc_config_local.py
diff --git a/tools/testing/selftests/tc-testing/Makefile b/tools/testing/selftests/tc-testing/Makefile
new file mode 100644
index 000000000000..9153e3428a77
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+TEST_PROGS += tdc.sh
+TEST_FILES := action-ebpf tdc*.py Tdc*.py plugins plugin-lib tc-tests scripts
+
+include ../lib.mk
diff --git a/tools/testing/selftests/tc-testing/README b/tools/testing/selftests/tc-testing/README
new file mode 100644
index 000000000000..fc8e858ff119
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/README
@@ -0,0 +1,210 @@
+tdc - Linux Traffic Control (tc) unit testing suite
+
+Author: Lucas Bates - lucasb@mojatatu.com
+
+tdc is a Python script to load tc unit tests from a separate JSON file and
+execute them inside a network namespace dedicated to the task.
+
+
+REQUIREMENTS
+------------
+
+*  Minimum Python version of 3.8.
+
+*  The kernel must have network namespace support if using nsPlugin
+
+*  The kernel must have veth support available, as a veth pair is created
+   prior to running the tests when using nsPlugin.
+
+*  The kernel must have the appropriate infrastructure enabled to run all tdc
+   unit tests. See the config file in this directory for minimum required
+   features. As new tests will be added, config options list will be updated.
+
+*  All tc-related features being tested must be built in or available as
+   modules.  To check what is required in current setup run:
+   ./tdc.py -c
+
+   Note:
+   In the current release, tdc run will abort due to a failure in setup or
+   teardown commands - which includes not being able to run a test simply
+   because the kernel did not support a specific feature. (This will be
+   handled in a future version - the current workaround is to run the tests
+   on specific test categories that your kernel supports)
+
+
+BEFORE YOU RUN
+--------------
+
+The path to the tc executable that will be most commonly tested can be defined
+in the tdc_config.py file. Find the 'TC' entry in the NAMES dictionary and
+define the path.
+
+If you need to test a different tc executable on the fly, you can do so by
+using the -p option when running tdc:
+	./tdc.py -p /path/to/tc
+
+
+RUNNING TDC
+-----------
+
+To use tdc, root privileges are required.  This is because the
+commands being tested must be run as root.  The code that enforces
+execution by root uid has been moved into a plugin (see PLUGIN
+ARCHITECTURE, below).
+
+Tests that use a network device should have nsPlugin.py listed as a
+requirement for that test. nsPlugin executes all commands within a
+network namespace and creates a veth pair which may be used in those test
+cases. To disable execution within the namespace, pass the -N option
+to tdc when starting a test run; the veth pair will still be created
+by the plugin.
+
+Running tdc without any arguments will run all tests. Refer to the section
+on command line arguments for more information, or run:
+	./tdc.py -h
+
+tdc will list the test names as they are being run, and print a summary in
+TAP (Test Anything Protocol) format when they are done. If tests fail,
+output captured from the failing test will be printed immediately following
+the failed test in the TAP output.
+
+
+OVERVIEW OF TDC EXECUTION
+-------------------------
+
+One run of tests is considered a "test suite" (this will be refined in the
+future).  A test suite has one or more test cases in it.
+
+A test case has four stages:
+
+  - setup
+  - execute
+  - verify
+  - teardown
+
+The setup and teardown stages can run zero or more commands.  The setup
+stage does some setup if the test needs it.  The teardown stage undoes
+the setup and returns the system to a "neutral" state so any other test
+can be run next.  These two stages require any commands run to return
+success, but do not otherwise verify the results.
+
+The execute and verify stages each run one command.  The execute stage
+tests the return code against one or more acceptable values.  The
+verify stage checks the return code for success, and also compares
+the stdout with a regular expression.
+
+Each of the commands in any stage will run in a shell instance.
+
+Each test is an atomic unit. A test that for whatever reason spans multiple test
+definitions is a bug.
+
+A test that runs inside a namespace (requires "nsPlugin") will run in parallel
+with other tests.
+
+Tests that use netdevsim or don't run inside a namespace run serially with regards
+to each other.
+
+
+USER-DEFINED CONSTANTS
+----------------------
+
+The tdc_config.py file contains multiple values that can be altered to suit
+your needs. Any value in the NAMES dictionary can be altered without affecting
+the tests to be run. These values are used in the tc commands that will be
+executed as part of the test. More will be added as test cases require.
+
+Example:
+	$TC qdisc add dev $DEV1 ingress
+
+The NAMES values are used to substitute into the commands in the test cases.
+
+
+COMMAND LINE ARGUMENTS
+----------------------
+
+Run tdc.py -h to see the full list of available arguments.
+
+PLUGIN ARCHITECTURE
+-------------------
+
+There is now a plugin architecture, and some of the functionality that
+was in the tdc.py script has been moved into the plugins.
+
+The plugins are in the directory plugin-lib.  The are executed from
+directory plugins.  Put symbolic links from plugins to plugin-lib,
+and name them according to the order you want them to run. This is not
+necessary if a test case being run requires a specific plugin to work.
+
+Example:
+
+bjb@bee:~/work/tc-testing$ ls -l plugins
+total 4
+lrwxrwxrwx  1 bjb  bjb    27 Oct  4 16:12 10-rootPlugin.py -> ../plugin-lib/rootPlugin.py
+lrwxrwxrwx  1 bjb  bjb    25 Oct 12 17:55 20-nsPlugin.py -> ../plugin-lib/nsPlugin.py
+-rwxr-xr-x  1 bjb  bjb     0 Sep 29 15:56 __init__.py
+
+The plugins are a subclass of TdcPlugin, defined in TdcPlugin.py and
+must be called "SubPlugin" so tdc can find them.  They are
+distinguished from each other in the python program by their module
+name.
+
+This base class supplies "hooks" to run extra functions.  These hooks are as follows:
+
+pre- and post-suite
+pre- and post-case
+pre- and post-execute stage
+adjust-command (runs in all stages and receives the stage name)
+
+The pre-suite hook receives the number of tests and an array of test ids.
+This allows you to dump out the list of skipped tests in the event of a
+failure during setup or teardown stage.
+
+The pre-case hook receives the ordinal number and test id of the current test.
+
+The adjust-command hook receives the stage id (see list below) and the
+full command to be executed.  This allows for last-minute adjustment
+of the command.
+
+The stages are identified by the following strings:
+
+  - pre  (pre-suite)
+  - setup
+  - command
+  - verify
+  - teardown
+  - post (post-suite)
+
+
+To write a plugin, you need to inherit from TdcPlugin in
+TdcPlugin.py.  To use the plugin, you have to put the
+implementation file in plugin-lib, and add a symbolic link to it from
+plugins.  It will be detected at run time and invoked at the
+appropriate times.  There are a few examples in the plugin-lib
+directory:
+
+  - rootPlugin.py:
+      implements the enforcement of running as root
+  - nsPlugin.py:
+      sets up a network namespace and runs all commands in that namespace,
+      while also setting up dummy devices to be used in testing.
+  - valgrindPlugin.py
+      runs each command in the execute stage under valgrind,
+      and checks for leaks.
+      This plugin will output an extra test for each test in the test file,
+      one is the existing output as to whether the test passed or failed,
+      and the other is a test whether the command leaked memory or not.
+      (This one is a preliminary version, it may not work quite right yet,
+      but the overall template is there and it should only need tweaks.)
+
+
+ACKNOWLEDGEMENTS
+----------------
+
+Thanks to:
+
+Jamal Hadi Salim, for providing valuable test cases
+Keara Leibovitz, who wrote the CLI test driver that I used as a base for the
+   first version of the tc testing suite. This work was presented at
+   Netdev 1.2 Tokyo in October 2016.
+Samir Hussain, for providing help while I dove into Python for the first time
+    and being a second eye for this code.
diff --git a/tools/testing/selftests/tc-testing/TODO.txt b/tools/testing/selftests/tc-testing/TODO.txt
new file mode 100644
index 000000000000..c40698557e2f
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/TODO.txt
@@ -0,0 +1,31 @@
+tc Testing Suite To-Do list:
+
+- Determine what tc features are supported in the kernel. If features are not
+  present, prevent the related categories from running.
+
+- Add support for multiple versions of tc to run successively
+
+- Improve error messages when tdc aborts its run.  Partially done - still
+  need to better handle problems in pre- and post-suite.
+
+- Use python logger module for debug/verbose output
+
+- Allow tdc to write its results to file.
+  Maybe use python logger module for this too.
+
+- A better implementation of the "hooks".  Currently, every plugin
+  will attempt to run a function at every hook point.  Could be
+  changed so that plugin __init__ methods will register functions to
+  be run in the various predefined times.  Then if a plugin does not
+  require action at a specific point, no penalty will be paid for
+  trying to run a function that will do nothing.
+
+- Proper exception handling - make an exception class and use it
+
+- a TestCase class, for easier testcase handling, searching, comparison
+
+- a TestSuite class
+  and a way to configure a test suite,
+  to automate running multiple "test suites" with different requirements
+
+- super simple test case example using ls, touch, etc
diff --git a/tools/testing/selftests/tc-testing/TdcPlugin.py b/tools/testing/selftests/tc-testing/TdcPlugin.py
new file mode 100644
index 000000000000..aae85ce4f776
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/TdcPlugin.py
@@ -0,0 +1,74 @@
+#!/usr/bin/env python3
+
+class TdcPlugin:
+    def __init__(self):
+        super().__init__()
+        print(' -- {}.__init__'.format(self.sub_class))
+
+    def pre_suite(self, testcount, testlist):
+        '''run commands before test_runner goes into a test loop'''
+        self.testcount = testcount
+        self.testlist = testlist
+        if self.args.verbose > 1:
+            print(' -- {}.pre_suite'.format(self.sub_class))
+
+    def post_suite(self, index):
+        '''run commands after test_runner completes the test loop
+        index is the last ordinal number of test that was attempted'''
+        if self.args.verbose > 1:
+            print(' -- {}.post_suite'.format(self.sub_class))
+
+    def pre_case(self, caseinfo, test_skip):
+        '''run commands before test_runner does one test'''
+        if self.args.verbose > 1:
+            print(' -- {}.pre_case'.format(self.sub_class))
+        self.args.caseinfo = caseinfo
+        self.args.test_skip = test_skip
+
+    def post_case(self):
+        '''run commands after test_runner does one test'''
+        if self.args.verbose > 1:
+            print(' -- {}.post_case'.format(self.sub_class))
+
+    def pre_execute(self):
+        '''run command before test-runner does the execute step'''
+        if self.args.verbose > 1:
+            print(' -- {}.pre_execute'.format(self.sub_class))
+
+    def post_execute(self):
+        '''run command after test-runner does the execute step'''
+        if self.args.verbose > 1:
+            print(' -- {}.post_execute'.format(self.sub_class))
+
+    def adjust_command(self, stage, command):
+        '''adjust the command'''
+        if self.args.verbose > 1:
+            print(' -- {}.adjust_command {}'.format(self.sub_class, stage))
+
+        # if stage == 'pre':
+        #     pass
+        # elif stage == 'setup':
+        #     pass
+        # elif stage == 'execute':
+        #     pass
+        # elif stage == 'verify':
+        #     pass
+        # elif stage == 'teardown':
+        #     pass
+        # elif stage == 'post':
+        #     pass
+        # else:
+        #     pass
+
+        return command
+
+    def add_args(self, parser):
+        '''Get the plugin args from the command line'''
+        self.argparser = parser
+        return self.argparser
+
+    def check_args(self, args, remaining):
+        '''Check that the args are set correctly'''
+        self.args = args
+        if self.args.verbose > 1:
+            print(' -- {}.check_args'.format(self.sub_class))
diff --git a/tools/testing/selftests/tc-testing/TdcResults.py b/tools/testing/selftests/tc-testing/TdcResults.py
new file mode 100644
index 000000000000..e56817b97f08
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/TdcResults.py
@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+
+from enum import Enum
+
+class ResultState(Enum):
+    noresult = -1
+    skip = 0
+    success = 1
+    fail = 2
+
+class TestResult:
+    def __init__(self, test_id="", test_name=""):
+       self.test_id = test_id
+       self.test_name = test_name
+       self.result = ResultState.noresult
+       self.failmsg = ""
+       self.errormsg = ""
+       self.steps = []
+
+    def set_result(self, result):
+        if (isinstance(result, ResultState)):
+            self.result = result
+            return True
+        else:
+            raise TypeError('Unknown result type, must be type ResultState')
+
+    def get_result(self):
+        return self.result
+
+    def set_errormsg(self, errormsg):
+        self.errormsg = errormsg
+        return True
+
+    def append_errormsg(self, errormsg):
+        self.errormsg = '{}\n{}'.format(self.errormsg, errormsg)
+
+    def get_errormsg(self):
+        return self.errormsg
+
+    def set_failmsg(self, failmsg):
+        self.failmsg = failmsg
+        return True
+
+    def append_failmsg(self, failmsg):
+        self.failmsg = '{}\n{}'.format(self.failmsg, failmsg)
+
+    def get_failmsg(self):
+        return self.failmsg
+
+    def add_steps(self, newstep):
+        if type(newstep) == list:
+            self.steps.extend(newstep)
+        elif type(newstep) == str:
+            self.steps.append(step)
+        else:
+            raise TypeError('TdcResults.add_steps() requires a list or str')
+
+    def get_executed_steps(self):
+        return self.steps
+
+class TestSuiteReport():
+    def __init__(self):
+        self._testsuite = []
+
+    def add_resultdata(self, result_data):
+        if isinstance(result_data, TestResult):
+            self._testsuite.append(result_data)
+            return True
+
+    def count_tests(self):
+        return len(self._testsuite)
+
+    def count_failures(self):
+        return sum(1 for t in self._testsuite if t.result == ResultState.fail)
+
+    def count_skips(self):
+        return sum(1 for t in self._testsuite if t.result == ResultState.skip)
+
+    def find_result(self, test_id):
+        return next((tr for tr in self._testsuite if tr.test_id == test_id), None)
+
+    def update_result(self, result_data):
+        orig = self.find_result(result_data.test_id)
+        if orig != None:
+            idx = self._testsuite.index(orig)
+            self._testsuite[idx] = result_data
+        else:
+            self.add_resultdata(result_data)
+
+    def format_tap(self):
+        ftap = ""
+        ftap += '1..{}\n'.format(self.count_tests())
+        index = 1
+        for t in self._testsuite:
+            if t.result == ResultState.fail:
+                ftap += 'not '
+            ftap += 'ok {} {} - {}'.format(str(index), t.test_id, t.test_name)
+            if t.result == ResultState.skip or t.result == ResultState.noresult:
+                ftap += ' # skipped - {}\n'.format(t.errormsg)
+            elif t.result == ResultState.fail:
+                if len(t.steps) > 0:
+                    ftap += '\tCommands executed in this test case:'
+                    for step in t.steps:
+                        ftap += '\n\t\t{}'.format(step)
+                ftap += '\n\t{}'.format(t.failmsg)
+            ftap += '\n'
+            index += 1
+        return ftap
+
+    def format_xunit(self):
+        from xml.sax.saxutils import escape
+        xunit = "<testsuites>\n"
+        xunit += '\t<testsuite tests=\"{}\" skips=\"{}\">\n'.format(self.count_tests(), self.count_skips())
+        for t in self._testsuite:
+            xunit += '\t\t<testcase classname=\"{}\" '.format(escape(t.test_id))
+            xunit += 'name=\"{}\">\n'.format(escape(t.test_name))
+            if t.failmsg:
+                xunit += '\t\t\t<failure>\n'
+                if len(t.steps) > 0:
+                    xunit += 'Commands executed in this test case:\n'
+                    for step in t.steps:
+                        xunit += '\t{}\n'.format(escape(step))
+                xunit += 'FAILURE: {}\n'.format(escape(t.failmsg))
+                xunit += '\t\t\t</failure>\n'
+            if t.errormsg:
+                xunit += '\t\t\t<error>\n{}\n'.format(escape(t.errormsg))
+                xunit += '\t\t\t</error>\n'
+            if t.result == ResultState.skip:
+                xunit += '\t\t\t<skipped/>\n'
+            xunit += '\t\t</testcase>\n'
+        xunit += '\t</testsuite>\n'
+        xunit += '</testsuites>\n'
+        return xunit
diff --git a/tools/testing/selftests/tc-testing/action-ebpf b/tools/testing/selftests/tc-testing/action-ebpf
new file mode 100644
index 000000000000..4879479b2ee5
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/action-ebpf
diff --git a/tools/testing/selftests/tc-testing/action.c b/tools/testing/selftests/tc-testing/action.c
new file mode 100644
index 000000000000..c32b99b80e19
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/action.c
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0
+ * Copyright (c) 2018 Davide Caratti, Red Hat inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ */
+
+#include <linux/bpf.h>
+#include <linux/pkt_cls.h>
+
+__attribute__((section("action-ok"),used)) int action_ok(struct __sk_buff *s)
+{
+	return TC_ACT_OK;
+}
+
+__attribute__((section("action-ko"),used)) int action_ko(struct __sk_buff *s)
+{
+	s->data = 0x0;
+	return TC_ACT_OK;
+}
+
+char _license[] __attribute__((section("license"),used)) = "GPL";
diff --git a/tools/testing/selftests/tc-testing/config b/tools/testing/selftests/tc-testing/config
new file mode 100644
index 000000000000..c20aa16b1d63
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/config
@@ -0,0 +1,117 @@
+#
+# Network
+#
+
+CONFIG_DUMMY=y
+CONFIG_VETH=y
+
+#
+# Core Netfilter Configuration
+#
+CONFIG_NETFILTER=y
+CONFIG_NETFILTER_ADVANCED=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_MARK=y
+CONFIG_NF_CONNTRACK_ZONES=y
+CONFIG_NF_CONNTRACK_LABELS=y
+CONFIG_NF_CONNTRACK_PROCFS=y
+CONFIG_NF_FLOW_TABLE=m
+CONFIG_NF_TABLES=m
+CONFIG_NF_NAT=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
+
+CONFIG_NET_SCHED=y
+CONFIG_IP_SET=m
+
+#
+# Queueing/Scheduling
+#
+CONFIG_NET_SCH_CAKE=m
+CONFIG_NET_SCH_CBS=m
+CONFIG_NET_SCH_CHOKE=m
+CONFIG_NET_SCH_CODEL=m
+CONFIG_NET_SCH_DRR=m
+CONFIG_NET_SCH_DUALPI2=m
+CONFIG_NET_SCH_ETF=m
+CONFIG_NET_SCH_FQ=m
+CONFIG_NET_SCH_FQ_CODEL=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_HHF=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_MQPRIO=m
+CONFIG_NET_SCH_MULTIQ=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_PIE=m
+CONFIG_NET_SCH_PLUG=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_QFQ=m
+CONFIG_NET_SCH_SFB=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_SKBPRIO=m
+CONFIG_NET_SCH_TAPRIO=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_TEQL=m
+
+#
+# Classification
+#
+CONFIG_NET_CLS=y
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_BPF=m
+CONFIG_NET_CLS_CGROUP=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_FLOWER=m
+CONFIG_NET_CLS_MATCHALL=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_EMATCH=y
+CONFIG_NET_EMATCH_STACK=32
+CONFIG_NET_EMATCH_CMP=m
+CONFIG_NET_EMATCH_NBYTE=m
+CONFIG_NET_EMATCH_U32=m
+CONFIG_NET_EMATCH_META=m
+CONFIG_NET_EMATCH_TEXT=m
+CONFIG_NET_EMATCH_IPSET=m
+CONFIG_NET_EMATCH_CANID=m
+CONFIG_NET_EMATCH_IPT=m
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_SAMPLE=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_CSUM=m
+CONFIG_NET_ACT_VLAN=m
+CONFIG_NET_ACT_BPF=m
+CONFIG_NET_ACT_CONNMARK=m
+CONFIG_NET_ACT_CTINFO=m
+CONFIG_NET_ACT_SKBMOD=m
+CONFIG_NET_ACT_IFE=m
+CONFIG_NET_ACT_TUNNEL_KEY=m
+CONFIG_NET_ACT_CT=m
+CONFIG_NET_ACT_MPLS=m
+CONFIG_NET_ACT_GATE=m
+CONFIG_NET_IFE_SKBMARK=m
+CONFIG_NET_IFE_SKBPRIO=m
+CONFIG_NET_IFE_SKBTCINDEX=m
+CONFIG_NET_SCH_FIFO=y
+CONFIG_NET_SCH_ETS=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_FQ_PIE=m
+
+#
+## Network testing
+#
+CONFIG_CAN=m
+CONFIG_ATM=y
+CONFIG_NETDEVSIM=m
+CONFIG_PTP_1588_CLOCK_MOCK=m
diff --git a/tools/testing/selftests/tc-testing/creating-plugins/AddingPlugins.txt b/tools/testing/selftests/tc-testing/creating-plugins/AddingPlugins.txt
new file mode 100644
index 000000000000..c18f88d09360
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-plugins/AddingPlugins.txt
@@ -0,0 +1,104 @@
+tdc - Adding plugins for tdc
+
+Author: Brenda J. Butler - bjb@mojatatu.com
+
+ADDING PLUGINS
+--------------
+
+A new plugin should be written in python as a class that inherits from TdcPlugin.
+There are some examples in plugin-lib.
+
+The plugin can be used to add functionality to the test framework,
+such as:
+
+- adding commands to be run before and/or after the test suite
+- adding commands to be run before and/or after the test cases
+- adding commands to be run before and/or after the execute phase of the test cases
+- ability to alter the command to be run in any phase:
+    pre        (the pre-suite stage)
+    prepare
+    execute
+    verify
+    teardown
+    post       (the post-suite stage)
+- ability to add to the command line args, and use them at run time
+
+
+The functions in the class should follow the following interfaces:
+
+    def __init__(self)
+    def pre_suite(self, testcount, testidlist)     # see "PRE_SUITE" below
+    def post_suite(self, ordinal)                  # see "SKIPPING" below
+    def pre_case(self, test_ordinal, testid)       # see "PRE_CASE" below
+    def post_case(self)
+    def pre_execute(self)
+    def post_execute(self)
+    def adjust_command(self, stage, command)       # see "ADJUST" below
+    def add_args(self, parser)                     # see "ADD_ARGS" below
+    def check_args(self, args, remaining)          # see "CHECK_ARGS" below
+
+
+PRE_SUITE
+
+This method takes a testcount (number of tests to be run) and
+testidlist (array of test ids for tests that will be run).  This is
+useful for various things, including when an exception occurs and the
+rest of the tests must be skipped.  The info is stored in the object,
+and the post_suite method can refer to it when dumping the "skipped"
+TAP output.  The tdc.py script will do that for the test suite as
+defined in the test case, but if the plugin is being used to run extra
+tests on each test (eg, check for memory leaks on associated
+co-processes) then that other tap output can be generated in the
+post-suite method using this info passed in to the pre_suite method.
+
+
+SKIPPING
+
+The post_suite method will receive the ordinal number of the last
+test to be attempted.  It can use this info when outputting
+the TAP output for the extra test cases.
+
+
+PRE_CASE
+
+The pre_case method will receive the ordinal number of the test
+and the test id.  Useful for outputing the extra test results.
+
+
+ADJUST
+
+The adjust_command method receives a string representing
+the execution stage and a string which is the actual command to be
+executed.  The plugin can adjust the command, based on the stage of
+execution.
+
+The stages are represented by the following strings:
+
+    'pre'
+    'setup'
+    'command'
+    'verify'
+    'teardown'
+    'post'
+
+The adjust_command method must return the adjusted command so tdc
+can use it.
+
+
+ADD_ARGS
+
+The add_args method receives the argparser object and can add
+arguments to it.  Care should be taken that the new arguments do not
+conflict with any from tdc.py or from other plugins that will be used
+concurrently.
+
+The add_args method should return the argparser object.
+
+
+CHECK_ARGS
+
+The check_args method is so that the plugin can do validation on
+the args, if needed.  If there is a problem, and Exception should
+be raised, with a string that explains the problem.
+
+eg:  raise Exception('plugin xxx, arg -y is wrong, fix it')
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt b/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt
new file mode 100644
index 000000000000..ff956d8c99c5
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/AddingTestCases.txt
@@ -0,0 +1,107 @@
+tdc - Adding test cases for tdc
+
+Author: Lucas Bates - lucasb@mojatatu.com
+
+ADDING TEST CASES
+-----------------
+
+User-defined tests should be added by defining a separate JSON file.  This
+will help prevent conflicts when updating the repository. Refer to
+template.json for the required JSON format for test cases.
+
+Include the 'id' field, but do not assign a value. Running tdc with the -i
+option will generate a unique ID for that test case.
+
+tdc will recursively search the 'tc-tests' subdirectory (or the
+directories named with the -D option) for .json files.  Any test case
+files you create in these directories will automatically be included.
+If you wish to store your custom test cases elsewhere, be sure to run
+tdc with the -f argument and the path to your file, or the -D argument
+and the path to your directory(ies).
+
+Be aware of required escape characters in the JSON data - particularly
+when defining the match pattern. Refer to the supplied json test files
+for examples when in doubt.  The match pattern is written in json, and
+will be used by python.  So the match pattern will be a python regular
+expression, but should be written using json syntax.
+
+
+TEST CASE STRUCTURE
+-------------------
+
+Each test case has required data:
+
+id:           A unique alphanumeric value to identify a particular test case
+name:         Descriptive name that explains the command under test
+skip:         A completely optional key, if the corresponding value is "yes"
+              then tdc will not execute the test case in question. However,
+              this test case will still appear in the results output but
+              marked as skipped. This key can be placed anywhere inside the
+              test case at the top level.
+dependsOn:    Same as 'skip', but the value is executed as a command. The test
+              is skipped when the command returns non-zero.
+category:     A list of single-word descriptions covering what the command
+              under test is testing. Example: filter, actions, u32, gact, etc.
+setup:        The list of commands required to ensure the command under test
+              succeeds. For example: if testing a filter, the command to create
+              the qdisc would appear here.
+	      This list can be empty.
+	      Each command can be a string to be executed, or a list consisting
+	      of a string which is a command to be executed, followed by 1 or
+	      more acceptable exit codes for this command.
+	      If only a string is given for the command, then an exit code of 0
+	      will be expected.
+cmdUnderTest: The tc command being tested itself.
+expExitCode:  The code returned by the command under test upon its termination.
+              tdc will compare this value against the actual returned value.
+verifyCmd:    The tc command to be run to verify successful execution.
+              For example: if the command under test creates a gact action,
+              verifyCmd should be "$TC actions show action gact"
+matchPattern: A regular expression to be applied against the output of the
+              verifyCmd to prove the command under test succeeded. This pattern
+              should be as specific as possible so that a false positive is not
+              matched.
+matchCount:   How many times the regex in matchPattern should match. A value
+              of 0 is acceptable.
+teardown:     The list of commands to clean up after the test is completed.
+              The environment should be returned to the same state as when
+              this test was started: qdiscs deleted, actions flushed, etc.
+	      This list can be empty.
+	      Each command can be a string to be executed, or a list consisting
+	      of a string which is a command to be executed, followed by 1 or
+	      more acceptable exit codes for this command.
+	      If only a string is given for the command, then an exit code of 0
+	      will be expected.
+
+
+SETUP/TEARDOWN ERRORS
+---------------------
+
+If an error is detected during the setup/teardown process, execution of the
+tests will immediately stop with an error message and the namespace in which
+the tests are run will be destroyed. This is to prevent inaccurate results
+in the test cases.  tdc will output a series of TAP results for the skipped
+tests.
+
+Repeated failures of the setup/teardown may indicate a problem with the test
+case, or possibly even a bug in one of the commands that are not being tested.
+
+It's possible to include acceptable exit codes with the setup/teardown command
+so that it doesn't halt the script for an error that doesn't matter. Turn the
+individual command into a list, with the command being first, followed by all
+acceptable exit codes for the command.
+
+Example:
+
+A pair of setup commands.  The first can have exit code 0, 1 or 255, the
+second must have exit code 0.
+
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action reclassify index 65536"
+        ],
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/example.json b/tools/testing/selftests/tc-testing/creating-testcases/example.json
new file mode 100644
index 000000000000..5ec501200970
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/example.json
@@ -0,0 +1,55 @@
+[
+    {
+        "id": "1f",
+        "name": "simple test to test framework",
+        "category": [
+            "example"
+        ],
+        "setup": [
+            "mkdir mytest"
+        ],
+        "cmdUnderTest": "touch mytest/blorfl",
+        "expExitCode": "0",
+        "verifyCmd": "ls mytest/* | grep '[b]lorfl'",
+        "matchPattern": "orfl",
+        "matchCount": "1",
+        "teardown": [
+            "rm -rf mytest"
+        ]
+    },
+    {
+        "id": "2f",
+        "name": "simple test, no need for verify",
+        "category": [
+            "example"
+        ],
+        "setup": [
+            "mkdir mytest",
+            "touch mytest/blorfl"
+        ],
+        "cmdUnderTest": "ls mytest/blorfl",
+        "expExitCode": "0",
+        "verifyCmd": "/bin/true",
+        "matchPattern": " ",
+        "matchCount": "0",
+        "teardown": [
+            "rm -rf mytest"
+        ]
+    },
+    {
+        "id": "3f",
+        "name": "simple test, no need for setup or teardown (or verify)",
+        "category": [
+            "example"
+        ],
+        "setup": [
+        ],
+        "cmdUnderTest": "ip l l lo",
+        "expExitCode": "0",
+        "verifyCmd": "/bin/true",
+        "matchPattern": " ",
+        "matchCount": "0",
+        "teardown": [
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
new file mode 100644
index 000000000000..5a9377b72d7f
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/scapy-example.json
@@ -0,0 +1,98 @@
+[
+    {
+        "id": "b1e9",
+        "name": "Test matching of source IP",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 1,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 ingress prio 3",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    },
+    {
+        "id": "e9c4",
+        "name": "Test matching of source IP with wrong count",
+        "category": [
+            "actions",
+            "scapy"
+        ],
+        "plugins": {
+            "requires": [
+                "nsPlugin",
+                "scapyPlugin"
+            ]
+        },
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+                2,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: prio 3 protocol ip flower src_ip 16.61.16.61 flowid 1:1 action ok",
+        "scapy": {
+            "iface": "$DEV0",
+            "count": 3,
+            "packet": "Ether(type=0x800)/IP(src='16.61.16.61')/ICMP()"
+        },
+        "expExitCode": "0",
+        "verifyCmd": "$TC -s -j filter ls dev $DEV1 parent ffff:",
+        "matchJSON": [
+            {
+                "path": [
+                    1,
+                    "options",
+                    "actions",
+                    0,
+                    "stats",
+                    "packets"
+                ],
+                "value": 1
+            }
+        ],
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/creating-testcases/template.json b/tools/testing/selftests/tc-testing/creating-testcases/template.json
new file mode 100644
index 000000000000..8b99b86d65bd
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/creating-testcases/template.json
@@ -0,0 +1,51 @@
+[
+    {
+        "id": "",
+        "name": "",
+        "category": [
+            "",
+            ""
+        ],
+        "setup": [
+            ""
+        ],
+        "cmdUnderTest": "",
+        "expExitCode": "",
+        "verifyCmd": "",
+        "matchPattern": "",
+        "matchCount": "",
+        "teardown": [
+            ""
+        ]
+    },
+    {
+        "id": "",
+        "name": "",
+        "category": [
+            "",
+            ""
+        ],
+        "setup": [
+            "",
+	    [
+		"",
+		0,
+		1,
+		255
+	    ]
+        ],
+        "cmdUnderTest": "",
+        "expExitCode": "",
+        "verifyCmd": "",
+        "matchPattern": "",
+        "matchCount": "",
+        "teardown": [
+            "",
+	    [
+		"",
+		0,
+		255
+            ]
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/README-PLUGINS b/tools/testing/selftests/tc-testing/plugin-lib/README-PLUGINS
new file mode 100644
index 000000000000..aa8a2669702b
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/README-PLUGINS
@@ -0,0 +1,27 @@
+tdc.py will look for plugins in a directory plugins off the cwd.
+Make a set of numbered symbolic links from there to the actual plugins.
+Eg:
+
+tdc.py
+plugin-lib/
+plugins/
+    __init__.py
+    10-rootPlugin.py -> ../plugin-lib/rootPlugin.py
+    20-valgrindPlugin.py -> ../plugin-lib/valgrindPlugin.py
+    30-nsPlugin.py -> ../plugin-lib/nsPlugin.py
+
+
+tdc.py will find them and use them.
+
+
+rootPlugin
+    Check if the uid is root.  If not, bail out.
+
+valgrindPlugin
+    Run the command under test with valgrind, and produce an extra set of TAP results for the memory tests.
+    This plugin will write files to the cwd, called vgnd-xxx.log.  These will contain
+    the valgrind output for test xxx.  Any file matching the glob 'vgnd-*.log' will be
+    deleted at the end of the run.
+
+nsPlugin
+    Run all the commands in a network namespace.
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
new file mode 100644
index 000000000000..bb19b8b76d3b
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
@@ -0,0 +1,251 @@
+import os
+import signal
+from string import Template
+import subprocess
+import time
+from multiprocessing import Pool
+from functools import cached_property
+from TdcPlugin import TdcPlugin
+
+from tdc_config import *
+
+try:
+    from pyroute2 import netns
+    from pyroute2 import IPRoute
+    netlink = True
+except ImportError:
+    netlink = False
+    print("!!! Consider installing pyroute2 !!!")
+
+class SubPlugin(TdcPlugin):
+    def __init__(self):
+        self.sub_class = 'ns/SubPlugin'
+        super().__init__()
+
+    def pre_suite(self, testcount, testlist):
+        super().pre_suite(testcount, testlist)
+
+    def prepare_test(self, test):
+        if 'skip' in test and test['skip'] == 'yes':
+            return
+
+        if 'nsPlugin' not in test['plugins']:
+            return
+
+        if netlink == True:
+            self._nl_ns_create()
+        else:
+            self._ipr2_ns_create()
+
+        # Make sure the netns is visible in the fs
+        ticks = 20
+        while True:
+            if ticks == 0:
+                raise TimeoutError
+            self._proc_check()
+            try:
+                ns = self.args.NAMES['NS']
+                f = open('/run/netns/{}'.format(ns))
+                f.close()
+                break
+            except:
+                time.sleep(0.1)
+                ticks -= 1
+                continue
+
+    def pre_case(self, test, test_skip):
+        if self.args.verbose:
+            print('{}.pre_case'.format(self.sub_class))
+
+        if test_skip:
+            return
+
+        self.prepare_test(test)
+
+    def post_case(self):
+        if self.args.verbose:
+            print('{}.post_case'.format(self.sub_class))
+
+        if netlink == True:
+            self._nl_ns_destroy()
+        else:
+            self._ipr2_ns_destroy()
+
+    def post_suite(self, index):
+        if self.args.verbose:
+            print('{}.post_suite'.format(self.sub_class))
+
+        # Make sure we don't leak resources
+        cmd = self._replace_keywords("$IP -a netns del")
+
+        if self.args.verbose > 3:
+            print('_exec_cmd:  command "{}"'.format(cmd))
+
+        subprocess.run(cmd, shell=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
+
+    def adjust_command(self, stage, command):
+        super().adjust_command(stage, command)
+        cmdform = 'list'
+        cmdlist = list()
+
+        if self.args.verbose:
+            print('{}.adjust_command'.format(self.sub_class))
+
+        if not isinstance(command, list):
+            cmdform = 'str'
+            cmdlist = command.split()
+        else:
+            cmdlist = command
+        if stage == 'setup' or stage == 'execute' or stage == 'verify' or stage == 'teardown':
+            if self.args.verbose:
+                print('adjust_command:  stage is {}; inserting netns stuff in command [{}] list [{}]'.format(stage, command, cmdlist))
+            cmdlist.insert(0, self.args.NAMES['NS'])
+            cmdlist.insert(0, 'exec')
+            cmdlist.insert(0, 'netns')
+            cmdlist.insert(0, self.args.NAMES['IP'])
+        else:
+            pass
+
+        if cmdform == 'str':
+            command = ' '.join(cmdlist)
+        else:
+            command = cmdlist
+
+        if self.args.verbose:
+            print('adjust_command:  return command [{}]'.format(command))
+        return command
+
+    def _nl_ns_create(self):
+        ns = self.args.NAMES["NS"];
+        dev0 = self.args.NAMES["DEV0"];
+        dev1 = self.args.NAMES["DEV1"];
+        dummy = self.args.NAMES["DUMMY"];
+
+        if self.args.verbose:
+            print('{}._nl_ns_create'.format(self.sub_class))
+
+        netns.create(ns)
+        netns.pushns(newns=ns)
+        with IPRoute() as ip:
+            ip.link('add', ifname=dev1, kind='veth', peer={'ifname': dev0, 'net_ns_fd':'/proc/1/ns/net'})
+            ip.link('add', ifname=dummy, kind='dummy')
+            ticks = 20
+            while True:
+                if ticks == 0:
+                    raise TimeoutError
+                try:
+                    dev1_idx = ip.link_lookup(ifname=dev1)[0]
+                    dummy_idx = ip.link_lookup(ifname=dummy)[0]
+                    ip.link('set', index=dev1_idx, state='up')
+                    ip.link('set', index=dummy_idx, state='up')
+                    break
+                except:
+                    time.sleep(0.1)
+                    ticks -= 1
+                    continue
+        netns.popns()
+
+        with IPRoute() as ip:
+            ticks = 20
+            while True:
+                if ticks == 0:
+                    raise TimeoutError
+                try:
+                    dev0_idx = ip.link_lookup(ifname=dev0)[0]
+                    ip.link('set', index=dev0_idx, state='up')
+                    break
+                except:
+                    time.sleep(0.1)
+                    ticks -= 1
+                    continue
+
+    def _ipr2_ns_create_cmds(self):
+        cmds = []
+
+        ns = self.args.NAMES['NS']
+
+        cmds.append(self._replace_keywords('netns add {}'.format(ns)))
+        cmds.append(self._replace_keywords('link add $DEV1 type veth peer name $DEV0'))
+        cmds.append(self._replace_keywords('link set $DEV1 netns {}'.format(ns)))
+        cmds.append(self._replace_keywords('link add $DUMMY type dummy'.format(ns)))
+        cmds.append(self._replace_keywords('link set $DUMMY netns {}'.format(ns)))
+        cmds.append(self._replace_keywords('netns exec {} $IP link set $DEV1 up'.format(ns)))
+        cmds.append(self._replace_keywords('netns exec {} $IP link set $DUMMY up'.format(ns)))
+        cmds.append(self._replace_keywords('link set $DEV0 up'.format(ns)))
+
+        if self.args.device:
+            cmds.append(self._replace_keywords('link set $DEV2 netns {}'.format(ns)))
+            cmds.append(self._replace_keywords('netns exec {} $IP link set $DEV2 up'.format(ns)))
+
+        return cmds
+
+    def _ipr2_ns_create(self):
+        '''
+        Create the network namespace in which the tests will be run and set up
+        the required network devices for it.
+        '''
+        self._exec_cmd_batched('pre', self._ipr2_ns_create_cmds())
+
+    def _nl_ns_destroy(self):
+        ns = self.args.NAMES['NS']
+        netns.remove(ns)
+
+    def _ipr2_ns_destroy_cmd(self):
+        return self._replace_keywords('netns delete {}'.format(self.args.NAMES['NS']))
+
+    def _ipr2_ns_destroy(self):
+        '''
+        Destroy the network namespace for testing (and any associated network
+        devices as well)
+        '''
+        self._exec_cmd('post', self._ipr2_ns_destroy_cmd())
+
+    @cached_property
+    def _proc(self):
+        ip = self._replace_keywords("$IP -b -")
+        proc = subprocess.Popen(ip,
+            shell=True,
+            stdin=subprocess.PIPE,
+            env=ENVIR)
+
+        return proc
+
+    def _proc_check(self):
+        proc = self._proc
+
+        proc.poll()
+
+        if proc.returncode is not None and proc.returncode != 0:
+            raise RuntimeError("iproute2 exited with an error code")
+
+    def _exec_cmd(self, stage, command):
+        '''
+        Perform any required modifications on an executable command, then run
+        it in a subprocess and return the results.
+        '''
+
+        if self.args.verbose > 3:
+            print('_exec_cmd:  command "{}"'.format(command))
+
+        proc = self._proc
+
+        proc.stdin.write((command + '\n').encode())
+        proc.stdin.flush()
+
+        if self.args.verbose > 3:
+            print('_exec_cmd proc: {}'.format(proc))
+
+        self._proc_check()
+
+    def _exec_cmd_batched(self, stage, commands):
+        for cmd in commands:
+            self._exec_cmd(stage, cmd)
+
+    def _replace_keywords(self, cmd):
+        """
+        For a given executable command, substitute any known
+        variables contained within NAMES with the correct values
+        """
+        tcmd = Template(cmd)
+        subcmd = tcmd.safe_substitute(self.args.NAMES)
+        return subcmd
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/rootPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/rootPlugin.py
new file mode 100644
index 000000000000..8762c0f4a095
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/rootPlugin.py
@@ -0,0 +1,19 @@
+import os
+import sys
+from TdcPlugin import TdcPlugin
+
+from tdc_config import *
+
+
+class SubPlugin(TdcPlugin):
+    def __init__(self):
+        self.sub_class = 'root/SubPlugin'
+        super().__init__()
+
+    def pre_suite(self, testcount, testlist):
+        # run commands before test_runner goes into a test loop
+        super().pre_suite(testcount, testlist)
+
+        if os.geteuid():
+            print('This script must be run with root privileges', file=sys.stderr)
+            exit(1)
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
new file mode 100644
index 000000000000..254136e3da5a
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/scapyPlugin.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python3
+
+import os
+import signal
+from string import Template
+import subprocess
+import time
+from TdcPlugin import TdcPlugin
+
+from tdc_config import *
+
+try:
+    from scapy.all import *
+except ImportError:
+    print("Unable to import the scapy python module.")
+    print("\nIf not already installed, you may do so with:")
+    print("\t\tpip3 install scapy==2.4.2")
+    exit(1)
+
+class SubPlugin(TdcPlugin):
+    def __init__(self):
+        self.sub_class = 'scapy/SubPlugin'
+        super().__init__()
+
+    def post_execute(self):
+        if 'scapy' not in self.args.caseinfo:
+            if self.args.verbose:
+                print('{}.post_execute: no scapy info in test case'.format(self.sub_class))
+            return
+
+        # Check for required fields
+        lscapyinfo = self.args.caseinfo['scapy']
+        if type(lscapyinfo) != list:
+            lscapyinfo = [ lscapyinfo, ]
+
+        for scapyinfo in lscapyinfo:
+            scapy_keys = ['iface', 'count', 'packet']
+            missing_keys = []
+            keyfail = False
+            for k in scapy_keys:
+                if k not in scapyinfo:
+                    keyfail = True
+                    missing_keys.append(k)
+            if keyfail:
+                print('{}: Scapy block present in the test, but is missing info:'
+                    .format(self.sub_class))
+                print('{}'.format(missing_keys))
+
+            pkt = eval(scapyinfo['packet'])
+            if '$' in scapyinfo['iface']:
+                tpl = Template(scapyinfo['iface'])
+                scapyinfo['iface'] = tpl.safe_substitute(NAMES)
+            for count in range(scapyinfo['count']):
+                sendp(pkt, iface=scapyinfo['iface'])
diff --git a/tools/testing/selftests/tc-testing/plugin-lib/valgrindPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/valgrindPlugin.py
new file mode 100644
index 000000000000..c6f61649c430
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugin-lib/valgrindPlugin.py
@@ -0,0 +1,161 @@
+'''
+run the command under test, under valgrind and collect memory leak info
+as a separate test.
+'''
+
+
+import os
+import re
+import signal
+from string import Template
+import subprocess
+import time
+from TdcPlugin import TdcPlugin
+from TdcResults import *
+
+from tdc_config import *
+
+def vp_extract_num_from_string(num_as_string_maybe_with_commas):
+    return int(num_as_string_maybe_with_commas.replace(',',''))
+
+class SubPlugin(TdcPlugin):
+    def __init__(self):
+        self.sub_class = 'valgrind/SubPlugin'
+        self.tap = ''
+        self._tsr = TestSuiteReport()
+        super().__init__()
+
+    def pre_suite(self, testcount, testist):
+        '''run commands before test_runner goes into a test loop'''
+        self.testidlist = [tidx['id'] for tidx in testlist]
+        super().pre_suite(testcount, testlist)
+        if self.args.verbose > 1:
+            print('{}.pre_suite'.format(self.sub_class))
+        if self.args.valgrind:
+            self._add_to_tap('1..{}\n'.format(self.testcount))
+
+    def post_suite(self, index):
+        '''run commands after test_runner goes into a test loop'''
+        super().post_suite(index)
+        if self.args.verbose > 1:
+            print('{}.post_suite'.format(self.sub_class))
+        #print('{}'.format(self.tap))
+        for xx in range(index - 1, self.testcount):
+            res = TestResult('{}-mem'.format(self.testidlist[xx]), 'Test skipped')
+            res.set_result(ResultState.skip)
+            res.set_errormsg('Skipped because of prior setup/teardown failure')
+            self._add_results(res)
+        if self.args.verbose < 4:
+            subprocess.check_output('rm -f vgnd-*.log', shell=True)
+
+    def add_args(self, parser):
+        super().add_args(parser)
+        self.argparser_group = self.argparser.add_argument_group(
+            'valgrind',
+            'options for valgrindPlugin (run command under test under Valgrind)')
+
+        self.argparser_group.add_argument(
+            '-V', '--valgrind', action='store_true',
+            help='Run commands under valgrind')
+
+        return self.argparser
+
+    def adjust_command(self, stage, command):
+        super().adjust_command(stage, command)
+        cmdform = 'list'
+        cmdlist = list()
+
+        if not self.args.valgrind:
+            return command
+
+        if self.args.verbose > 1:
+            print('{}.adjust_command'.format(self.sub_class))
+
+        if not isinstance(command, list):
+            cmdform = 'str'
+            cmdlist = command.split()
+        else:
+            cmdlist = command
+
+        if stage == 'execute':
+            if self.args.verbose > 1:
+                print('adjust_command:  stage is {}; inserting valgrind stuff in command [{}] list [{}]'.
+                      format(stage, command, cmdlist))
+            cmdlist.insert(0, '--track-origins=yes')
+            cmdlist.insert(0, '--show-leak-kinds=definite,indirect')
+            cmdlist.insert(0, '--leak-check=full')
+            cmdlist.insert(0, '--log-file=vgnd-{}.log'.format(self.args.testid))
+            cmdlist.insert(0, '-v')  # ask for summary of non-leak errors
+            cmdlist.insert(0, ENVIR['VALGRIND_BIN'])
+        else:
+            pass
+
+        if cmdform == 'str':
+            command = ' '.join(cmdlist)
+        else:
+            command = cmdlist
+
+        if self.args.verbose > 1:
+            print('adjust_command:  return command [{}]'.format(command))
+        return command
+
+    def post_execute(self):
+        if not self.args.valgrind:
+            return
+
+        res = TestResult('{}-mem'.format(self.args.testid),
+              '{} memory leak check'.format(self.args.test_name))
+        if self.args.test_skip:
+            res.set_result(ResultState.skip)
+            res.set_errormsg('Test case designated as skipped.')
+            self._add_results(res)
+            return
+
+        self.definitely_lost_re = re.compile(
+            r'definitely lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\sblocks', re.MULTILINE | re.DOTALL)
+        self.indirectly_lost_re = re.compile(
+            r'indirectly lost:\s+([,0-9]+)\s+bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
+        self.possibly_lost_re = re.compile(
+            r'possibly lost:\s+([,0-9]+)bytes in\s+([,0-9]+)\s+blocks', re.MULTILINE | re.DOTALL)
+        self.non_leak_error_re = re.compile(
+            r'ERROR SUMMARY:\s+([,0-9]+) errors from\s+([,0-9]+)\s+contexts', re.MULTILINE | re.DOTALL)
+
+        def_num = 0
+        ind_num = 0
+        pos_num = 0
+        nle_num = 0
+
+        # what about concurrent test runs?  Maybe force them to be in different directories?
+        with open('vgnd-{}.log'.format(self.args.testid)) as vfd:
+            content = vfd.read()
+            def_mo = self.definitely_lost_re.search(content)
+            ind_mo = self.indirectly_lost_re.search(content)
+            pos_mo = self.possibly_lost_re.search(content)
+            nle_mo = self.non_leak_error_re.search(content)
+
+            if def_mo:
+                def_num = int(def_mo.group(2))
+            if ind_mo:
+                ind_num = int(ind_mo.group(2))
+            if pos_mo:
+                pos_num = int(pos_mo.group(2))
+            if nle_mo:
+                nle_num = int(nle_mo.group(1))
+
+        mem_results = ''
+        if (def_num > 0) or (ind_num > 0) or (pos_num > 0) or (nle_num > 0):
+            mem_results += 'not '
+            res.set_result(ResultState.fail)
+            res.set_failmsg('Memory leak detected')
+            res.append_failmsg(content)
+        else:
+            res.set_result(ResultState.success)
+
+        self._add_results(res)
+
+
+    def _add_results(self, res):
+        self._tsr.add_resultdata(res)
+
+    def _add_to_tap(self, more_tap_output):
+        self.tap += more_tap_output
diff --git a/tools/testing/selftests/tc-testing/plugins/__init__.py b/tools/testing/selftests/tc-testing/plugins/__init__.py
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/plugins/__init__.py
diff --git a/tools/testing/selftests/tc-testing/scripts/sfq_rejects_limit_1.py b/tools/testing/selftests/tc-testing/scripts/sfq_rejects_limit_1.py
new file mode 100755
index 000000000000..0f44a6199495
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/scripts/sfq_rejects_limit_1.py
@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
+#
+# Script that checks that SFQ rejects a limit of 1 at the kernel
+# level. We can't use iproute2's tc because it does not accept a limit
+# of 1.
+
+import sys
+import os
+
+from pyroute2 import IPRoute
+from pyroute2.netlink.exceptions import NetlinkError
+
+ip = IPRoute()
+ifidx = ip.link_lookup(ifname=sys.argv[1])
+
+try:
+    ip.tc('add', 'sfq', ifidx, limit=1)
+    sys.exit(1)
+except NetlinkError:
+    sys.exit(0)
diff --git a/tools/testing/selftests/tc-testing/scripts/taprio_wait_for_admin.sh b/tools/testing/selftests/tc-testing/scripts/taprio_wait_for_admin.sh
new file mode 100755
index 000000000000..f5335e8ad6b4
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/scripts/taprio_wait_for_admin.sh
@@ -0,0 +1,16 @@
+#!/bin/bash
+
+TC="$1"; shift
+ETH="$1"; shift
+
+# The taprio architecture changes the admin schedule from a hrtimer and not
+# from process context, so we need to wait in order to make sure that any
+# schedule change actually took place.
+while :; do
+	has_admin="$($TC -j qdisc show dev $ETH root | jq '.[].options | has("admin")')"
+	if [ "$has_admin" = "false" ]; then
+		break;
+	fi
+
+	sleep 1
+done
diff --git a/tools/testing/selftests/tc-testing/settings b/tools/testing/selftests/tc-testing/settings
new file mode 100644
index 000000000000..e2206265f67c
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/settings
@@ -0,0 +1 @@
+timeout=900
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
new file mode 100644
index 000000000000..6e00bf32ef9a
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/bpf.json
@@ -0,0 +1,315 @@
+[
+    {
+        "id": "d959",
+        "name": "Add cBPF action with valid bytecode",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' index 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action bpf index 100",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' default-action pipe.*index 100 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "f84a",
+        "name": "Add cBPF action with invalid bytecode",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf bytecode '4,40 0 0 12,31 0 1 2048,6 0 0 262144,6 0 0 0' index 100",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action bpf index 100",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,31 0 1 2048,6 0 0 262144,6 0 0 0' default-action pipe.*index 100 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action bpf"
+        ]
+    },
+    {
+        "id": "e939",
+        "name": "Add eBPF action with valid object-file",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf object-file $EBPFDIR/action-ebpf section action-ok index 667",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action bpf index 667",
+        "matchPattern": "action order [0-9]*: bpf action-ebpf:\\[action-ok\\] id [0-9].* tag [0-9a-f]{16}( jited)? default-action pipe.*index 667 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "282d",
+        "name": "Add eBPF action with invalid object-file",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf object-file $EBPFDIR/action-ebpf section action-ko index 667",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action bpf index 667",
+        "matchPattern": "action order [0-9]*: bpf action-ebpf:\\[action-ko\\] id [0-9].*index 667 ref",
+        "matchCount": "0",
+        "teardown": [
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ]
+    },
+    {
+        "id": "d819",
+        "name": "Replace cBPF bytecode and action control",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' index 555",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action replace action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' drop index 555",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action bpf index 555",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' default-action drop.*index 555 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "6ae3",
+        "name": "Delete cBPF action ",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' index 444",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action delete action bpf index 444",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action bpf index 444",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' default-action pipe.*index 444 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "3e0d",
+        "name": "List cBPF actions",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC action flush action bpf",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' ok index 101",
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' drop index 102",
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 33024,6 0 0 262144,6 0 0 0' continue index 103"
+        ],
+        "cmdUnderTest": "$TC action list action bpf",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action bpf",
+        "matchPattern": "action order [0-9]*: bpf bytecode",
+        "matchCount": "3",
+        "teardown": [
+            "$TC actions flush action bpf"
+        ]
+    },
+    {
+        "id": "55ce",
+        "name": "Flush BPF actions",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' ok index 101",
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' drop index 102",
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 33024,6 0 0 262144,6 0 0 0' continue index 103"
+        ],
+        "cmdUnderTest": "$TC action flush action bpf",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action bpf",
+        "matchPattern": "action order [0-9]*: bpf bytecode",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action bpf"
+        ]
+    },
+    {
+        "id": "ccc3",
+        "name": "Add cBPF action with duplicate index",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' index 4294967295"
+        ],
+        "cmdUnderTest": "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' index 4294967295",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action bpf index 4294967295",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' default-action pipe.*index 4294967295",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "89c7",
+        "name": "Add cBPF action with invalid index",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' index 4294967296 cookie 123456",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action ls action bpf",
+        "matchPattern": "action order [0-9]*: bpf bytecode '4,40 0 0 12,21 0 1 2048,6 0 0 262144,6 0 0 0' default-action pipe.*cookie 123456",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "7ab9",
+        "name": "Add cBPF action with cookie",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action bpf bytecode '4,40 0 0 12,21 0 1 2054,6 0 0 262144,6 0 0 0' cookie d0d0d0d0d0d0d0d0",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action bpf",
+        "matchPattern": "action order [0-9]*: bpf.*cookie d0d0d0d0d0d0d0",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    },
+    {
+        "id": "b8a1",
+        "name": "Replace bpf action with invalid goto_chain control",
+        "category": [
+            "actions",
+            "bpf"
+        ],
+        "setup": [
+            [
+                "$TC actions flush action bpf",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action bpf bytecode '1,6 0 0 4294967295' pass index 90"
+        ],
+        "cmdUnderTest": "$TC action replace action bpf bytecode '1,6 0 0 4294967295' goto chain 42 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action list action bpf",
+        "matchPattern": "action order [0-9]*: bpf.* default-action pass.*index 90",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action bpf"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/connmark.json b/tools/testing/selftests/tc-testing/tc-tests/actions/connmark.json
new file mode 100644
index 000000000000..3d0f9310bde4
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/connmark.json
@@ -0,0 +1,411 @@
+[
+    {
+        "id": "2002",
+        "name": "Add valid connmark action with defaults",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action connmark",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pipe",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "56a5",
+        "name": "Add valid connmark action with control pass",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark pass index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 1",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pass.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "7c66",
+        "name": "Add valid connmark action with control drop",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark drop index 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 100",
+        "matchPattern": "action order [0-9]+: connmark zone 0 drop.*index 100 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "a913",
+        "name": "Add valid connmark action with control pipe",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark pipe index 455",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 455",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pipe.*index 455 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "bdd8",
+        "name": "Add valid connmark action with control reclassify",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark reclassify index 7",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action connmark",
+        "matchPattern": "action order [0-9]+: connmark zone 0 reclassify.*index 7 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "b8be",
+        "name": "Add valid connmark action with control continue",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark continue index 17",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action connmark",
+        "matchPattern": "action order [0-9]+: connmark zone 0 continue.*index 17 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "d8a6",
+        "name": "Add valid connmark action with control jump",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark jump 10 index 17",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action connmark",
+        "matchPattern": "action order [0-9]+: connmark zone 0 jump 10.*index 17 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "aae8",
+        "name": "Add valid connmark action with zone argument",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark zone 100 pipe index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 1",
+        "matchPattern": "action order [0-9]+: connmark zone 100 pipe.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "2f0b",
+        "name": "Add valid connmark action with invalid zone argument",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark zone 65536 reclassify index 21",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action connmark index 1",
+        "matchPattern": "action order [0-9]+: connmark zone 65536 reclassify.*index 21 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "9305",
+        "name": "Add connmark action with unsupported argument",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark zone 655 unsupp_arg pass index 2",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action connmark index 2",
+        "matchPattern": "action order [0-9]+: connmark zone 655 unsupp_arg pass.*index 2 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "71ca",
+        "name": "Add valid connmark action and replace it",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action connmark zone 777 pass index 555"
+        ],
+        "cmdUnderTest": "$TC actions replace action connmark zone 555 reclassify index 555",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 555",
+        "matchPattern": "action order [0-9]+: connmark zone 555 reclassify.*index 555 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "5f8f",
+        "name": "Add valid connmark action with cookie",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action connmark zone 555 pipe index 5 cookie aabbccddeeff112233445566778800a1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 5",
+        "matchPattern": "action order [0-9]+: connmark zone 555 pipe.*index 5 ref.*cookie aabbccddeeff112233445566778800a1",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "c506",
+        "name": "Replace connmark with invalid goto chain control",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action connmark pass index 90"
+        ],
+        "cmdUnderTest": "$TC actions replace action connmark goto chain 42 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action connmark index 90",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pass.*index 90 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "6571",
+        "name": "Delete connmark action with valid index",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ],
+	    "$TC actions add action connmark pass index 20"
+        ],
+        "cmdUnderTest": "$TC actions del action connmark index 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action connmark index 20",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pass.*index 20 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    },
+    {
+        "id": "3426",
+        "name": "Delete connmark action with invalid index",
+        "category": [
+            "actions",
+            "connmark"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action connmark",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action connmark pass index 20"
+        ],
+        "cmdUnderTest": "$TC actions del action connmark index 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action connmark index 20",
+        "matchPattern": "action order [0-9]+: connmark zone 0 pass.*index 20 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action connmark"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/csum.json b/tools/testing/selftests/tc-testing/tc-tests/actions/csum.json
new file mode 100644
index 000000000000..56e11136d0f6
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/csum.json
@@ -0,0 +1,622 @@
+[
+    {
+        "id": "6d84",
+        "name": "Add csum iph action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum iph index 800",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 800",
+        "matchPattern": "action order [0-9]*: csum \\(iph\\) action pass.*index 800 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "1862",
+        "name": "Add csum ip4h action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum ip4h index 7",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 7",
+        "matchPattern": "action order [0-9]*: csum \\(iph\\) action pass.*index 7 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "15c6",
+        "name": "Add csum ipv4h action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum ipv4h index 1122",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 1122",
+        "matchPattern": "action order [0-9]*: csum \\(iph\\) action pass.*index 1122 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "bf47",
+        "name": "Add csum icmp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum icmp index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 1",
+        "matchPattern": "action order [0-9]*: csum \\(icmp\\) action pass.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "cc1d",
+        "name": "Add csum igmp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum igmp index 999",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 999",
+        "matchPattern": "action order [0-9]*: csum \\(igmp\\) action pass.*index 999 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "bccc",
+        "name": "Add csum foobar action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum foobar index 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions ls action csum",
+        "matchPattern": "action order [0-9]*: csum \\(foobar\\) action pass.*index 1 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "3bb4",
+        "name": "Add csum tcp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum tcp index 9999",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 9999",
+        "matchPattern": "action order [0-9]*: csum \\(tcp\\) action pass.*index 9999 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "759c",
+        "name": "Add csum udp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum udp index 334455",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 334455",
+        "matchPattern": "action order [0-9]*: csum \\(udp\\) action pass.*index 334455 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "bdb6",
+        "name": "Add csum udp xor iph action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum udp xor iph index 3",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions ls action csum",
+        "matchPattern": "action order [0-9]*: csum \\(udp xor iph\\) action pass.*index 3 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "c220",
+        "name": "Add csum udplite action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum udplite continue index 3",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 3",
+        "matchPattern": "action order [0-9]*: csum \\(udplite\\) action continue.*index 3 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "8993",
+        "name": "Add csum sctp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum sctp index 777",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 777",
+        "matchPattern": "action order [0-9]*: csum \\(sctp\\) action pass.*index 777 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "b138",
+        "name": "Add csum ip & icmp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum ip and icmp pipe index 123",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 123",
+        "matchPattern": "action order [0-9]*: csum \\(iph, icmp\\) action pipe.*index 123 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "eeda",
+        "name": "Add csum ip & sctp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum ipv4h sctp continue index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 2",
+        "matchPattern": "action order [0-9]*: csum \\(iph, sctp\\) action continue.*index 2 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "0017",
+        "name": "Add csum udp or tcp action",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum udp or tcp continue index 27",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 27",
+        "matchPattern": "action order [0-9]*: csum \\(tcp, udp\\) action continue.*index 27 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "b10b",
+        "name": "Add all 7 csum actions",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum icmp ip4h sctp igmp udplite udp tcp index 7",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 7",
+        "matchPattern": "action order [0-9]*: csum \\(iph, icmp, igmp, tcp, udp, udplite, sctp\\).*index 7 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "ce92",
+        "name": "Add csum udp action with cookie",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum udp pipe index 7 cookie 12345678",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 7",
+        "matchPattern": "action order [0-9]*: csum \\(udp\\) action pipe.*index 7.*cookie 12345678",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "912f",
+        "name": "Add csum icmp action with large cookie",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum icmp pipe index 17 cookie aabbccddeeff1122",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action csum index 17",
+        "matchPattern": "action order [0-9]*: csum \\(icmp\\) action pipe.*index 17.*cookie aabbccddeeff1122",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "879b",
+        "name": "Add batch of 32 csum tcp actions",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum tcp continue index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action csum",
+        "matchPattern": "^[ \t]+index [0-9]* ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "b4e9",
+        "name": "Delete batch of 32 csum actions",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ],
+            "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum tcp continue index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\""
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions del \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action csum",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "0015",
+        "name": "Add batch of 32 csum tcp actions with large cookies",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum tcp continue index \\$i cookie 123456789abcde \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action csum",
+        "matchPattern": "^[ \t]+index [0-9]* ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "989e",
+        "name": "Delete batch of 32 csum actions with large cookies",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ],
+            "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum tcp continue index \\$i cookie 123456789abcde \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\""
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action csum index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions del \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action csum",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d128",
+        "name": "Replace csum action with invalid goto chain control",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action csum iph index 90"
+        ],
+        "cmdUnderTest": "$TC actions replace action csum iph goto chain 42 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action csum index 90",
+        "matchPattern": "action order [0-9]*: csum \\(iph\\) action pass.*index 90 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    },
+    {
+        "id": "eaf0",
+        "name": "Add csum iph action with no_percpu flag",
+        "category": [
+            "actions",
+            "csum"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action csum",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action csum iph no_percpu",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action csum",
+        "matchPattern": "action order [0-9]*: csum \\(iph\\) action pass.*no_percpu",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action csum"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json b/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json
new file mode 100644
index 000000000000..7d07c55bb668
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/ct.json
@@ -0,0 +1,509 @@
+[
+    {
+        "id": "696a",
+        "name": "Add simple ct action",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 0 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "e38c",
+        "name": "Add simple ct action with cookie",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct index 42 cookie deadbeef",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 0 pipe.*index 42 ref.*cookie deadbeef",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "9f20",
+        "name": "Add ct clear action",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct clear index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct clear pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "0bc1",
+        "name": "Add ct clear action with cookie of max length",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct clear index 42 cookie aa11bb22cc33dd44ee55ff66aa11b1b2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct clear pipe.*index 42 ref.*cookie aa11bb22cc33dd44ee55ff66aa11b1b2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "5bea",
+        "name": "Try ct with zone",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct zone 404 index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 404 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "d5d6",
+        "name": "Try ct with zone, commit",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct zone 404 commit index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit zone 404 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "029f",
+        "name": "Try ct with zone, commit, mark",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct zone 404 commit mark 0x42 index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit mark 66 zone 404 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "a58d",
+        "name": "Try ct with zone, commit, mark, nat",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct zone 404 commit mark 0x42 nat src addr 5.5.5.7 index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit mark 66 zone 404 nat src addr 5.5.5.7 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "901b",
+        "name": "Try ct with full nat ipv4 range syntax",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct commit nat src addr 5.5.5.7-5.5.6.0 port 1000-2000 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit zone 0 nat src addr 5.5.5.7-5.5.6.0 port 1000-2000 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "072b",
+        "name": "Try ct with full nat ipv6 syntax",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct commit nat src addr 2001::1 port 1000-2000 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit zone 0 nat src addr 2001::1 port 1000-2000 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "3420",
+        "name": "Try ct with full nat ipv6 range syntax",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct commit nat src addr 2001::1-2001::10 port 1000-2000 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit zone 0 nat src addr 2001::1-2001::10 port 1000-2000 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "4470",
+        "name": "Try ct with full nat ipv6 range syntax + force",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct commit force nat src addr 2001::1-2001::10 port 1000-2000 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct commit force zone 0 nat src addr 2001::1-2001::10 port 1000-2000 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "5d88",
+        "name": "Try ct with label",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct label 123123 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 0 label 12312300000000000000000000000000 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "04d4",
+        "name": "Try ct with label with mask",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct label 12312300000000000000000000000001/ffffffff000000000000000000000001 index 44",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 0 label 12312300000000000000000000000001/ffffffff000000000000000000000001 pipe.*index 44 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "9751",
+        "name": "Try ct with mark + mask",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct mark 0x42/0xf0 index 42",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct mark 66/0xf0 zone 0 pipe.*index 42 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "2faa",
+        "name": "Try ct with mark + mask and cookie",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct mark 0x42/0xf0 index 42 cookie aa11bb22cc33dd44ee55ff66aa11b1b2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct mark 66/0xf0 zone 0 pipe.*index 42 ref.*cookie aa11bb22cc33dd44ee55ff66aa11b1b2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "3991",
+        "name": "Add simple ct action with no_percpu flag",
+        "category": [
+            "actions",
+            "ct"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ct",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ct no_percpu",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action ct",
+        "matchPattern": "action order [0-9]*: ct zone 0 pipe.*no_percpu",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ct"
+        ]
+    },
+    {
+        "id": "3992",
+        "name": "Add ct action triggering DNAT tuple conflict",
+        "category": [
+            "actions",
+            "ct",
+	    "scapy"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+	"plugins": {
+		"requires": [
+			"nsPlugin",
+			"scapyPlugin"
+		]
+	},
+        "setup": [
+            [
+                "$TC qdisc del dev $DEV1 ingress",
+                0,
+                1,
+		2,
+                255
+            ],
+	    "$TC qdisc add dev $DEV1 ingress"
+        ],
+        "cmdUnderTest": "$TC filter add dev $DEV1 ingress protocol ip prio 1 flower ct_state -trk action ct commit nat dst addr 20.0.0.1 port 10 pipe action drop",
+	"scapy": [
+	    {
+		"iface": "$DEV0",
+		"count": 1,
+		"packet": "Ether(type=0x800)/IP(src='10.0.0.10',dst='10.0.0.10')/TCP(sport=5000,dport=10)"
+	    },
+	    {
+		"iface": "$DEV0",
+		"count": 1,
+		"packet": "Ether(type=0x800)/IP(src='10.0.0.10',dst='10.0.0.20')/TCP(sport=5000,dport=10)"
+	    }
+	],
+        "expExitCode": "0",
+        "verifyCmd": "cat /proc/net/nf_conntrack",
+        "matchPattern": "dst=10.0.0.20",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/ctinfo.json b/tools/testing/selftests/tc-testing/tc-tests/actions/ctinfo.json
new file mode 100644
index 000000000000..bb54d71241a0
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/ctinfo.json
@@ -0,0 +1,352 @@
+[
+    {
+        "id": "c826",
+        "name": "Add ctinfo action with default setting",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action ctinfo",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo index 10",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action ctinfo index 10",
+        "matchPattern": "action order [0-9]*: ctinfo zone 0 pipe.*index 10 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "0286",
+        "name": "Add ctinfo action with dscp",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo dscp 0xfc000000 0x01000000 index 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action ls action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo zone 0 pipe.*index 100 ref.*dscp 0xfc000000 0x01000000",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ctinfo"
+        ]
+    },
+    {
+        "id": "4938",
+        "name": "Add ctinfo action with valid cpmark and zone",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action ctinfo",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo cpmark 0x01000000 zone 1 index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action ctinfo index 1",
+        "matchPattern": "action order [0-9]*: ctinfo zone 1 pipe.*index 1 ref.*cpmark 0x01000000",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "7593",
+        "name": "Add ctinfo action with drop control",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action ctinfo",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo drop index 1000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action ls action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo zone 0 drop.*index 1000 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "2961",
+        "name": "Replace ctinfo action zone and action control",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action ctinfo zone 1 drop index 1",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action replace action ctinfo zone 200 pass index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action ctinfo index 1",
+        "matchPattern": "action order [0-9]*: ctinfo zone 200 pass.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "e567",
+        "name": "Delete ctinfo action with valid index",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action ctinfo zone 200 pass index 1",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action delete action ctinfo index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action ctinfo index 1",
+        "matchPattern": "action order [0-9]*: ctinfo zone 200 pass.*index 1 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "6a91",
+        "name": "Delete ctinfo action with invalid index",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action ctinfo zone 200 pass index 1",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action delete action ctinfo index 333",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action ctinfo index 1",
+        "matchPattern": "action order [0-9]*: ctinfo zone 200 pass.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "5232",
+        "name": "List ctinfo actions",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action ctinfo zone 20 pass index 101",
+            "$TC action add action ctinfo cpmark 0x02000000 drop index 102",
+            "$TC action add action ctinfo continue index 103"
+        ],
+        "cmdUnderTest": "$TC action list action ctinfo",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo",
+        "matchCount": "3",
+        "teardown": [
+            "$TC actions flush action ctinfo"
+        ]
+    },
+    {
+        "id": "7702",
+        "name": "Flush ctinfo actions",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+	    "$TC action add action ctinfo zone 20 pass index 101",
+            "$TC action add action ctinfo cpmark 0x02000000 drop index 102",
+            "$TC action add action ctinfo continue index 103"
+        ],
+        "cmdUnderTest": "$TC action flush action ctinfo",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action ctinfo"
+        ]
+    },
+    {
+        "id": "3201",
+        "name": "Add ctinfo action with duplicate index",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action ctinfo zone 20 pass index 101"
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo cpmark 0x02000000 drop index 101",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action ctinfo index 101",
+        "matchPattern": "action order [0-9]*: ctinfo zone 20 pass.*index 101",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "8295",
+        "name": "Add ctinfo action with invalid index",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action ctinfo zone 20 index 4294967296",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action ls action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    },
+    {
+        "id": "3964",
+        "name": "Replace ctinfo action with invalid goto_chain control",
+        "category": [
+            "actions",
+            "ctinfo"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ctinfo",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action ctinfo pass index 90"
+        ],
+        "cmdUnderTest": "$TC action replace action ctinfo goto chain 42 index 90",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action list action ctinfo",
+        "matchPattern": "action order [0-9]*: ctinfo.*pass.*index 90",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action ctinfo"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json b/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json
new file mode 100644
index 000000000000..0fcd52742939
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/gact.json
@@ -0,0 +1,765 @@
+[
+    {
+        "id": "e89a",
+        "name": "Add valid pass action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action pass index 8",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pass.*index 8 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "a02c",
+        "name": "Add valid pipe action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action pipe index 6",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pipe.*index 6 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "feef",
+        "name": "Add valid reclassify action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action reclassify index 5",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action reclassify.*index 5 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "8a7a",
+        "name": "Add valid drop action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action drop index 30",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action drop.*index 30 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "9a52",
+        "name": "Add valid continue action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action continue index 432",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action continue.*index 432 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "d700",
+        "name": "Add invalid action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action pump index 386",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action.*index 386 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "9215",
+        "name": "Add action with duplicate index",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action pipe index 15"
+        ],
+        "cmdUnderTest": "$TC actions add action drop index 15",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action drop.*index 15 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "798e",
+        "name": "Add action with index exceeding 32-bit maximum",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action drop index 4294967296",
+        "expExitCode": "255",
+        "verifyCmd": "actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action drop.*index 4294967296 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "22be",
+        "name": "Add action with index at 32-bit maximum",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action drop index 4294967295",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action drop.*index 4294967295 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "ac2a",
+        "name": "List actions",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action reclassify index 101",
+            "$TC actions add action reclassify index 102",
+            "$TC actions add action reclassify index 103",
+            "$TC actions add action reclassify index 104",
+            "$TC actions add action reclassify index 105"
+        ],
+        "cmdUnderTest": "$TC actions list action gact",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action reclassify",
+        "matchCount": "5",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "3edf",
+        "name": "Flush gact actions",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            "$TC actions add action reclassify index 101",
+            "$TC actions add action reclassify index 102",
+            "$TC actions add action reclassify index 103",
+            "$TC actions add action reclassify index 104",
+            "$TC actions add action reclassify index 105"
+        ],
+        "cmdUnderTest": "$TC actions flush action gact",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action reclassify",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "63ec",
+        "name": "Delete pass action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action pass index 1"
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pass.*index 1 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "46be",
+        "name": "Delete pipe action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action pipe index 9"
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 9",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pipe.*index 9 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "2e08",
+        "name": "Delete reclassify action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action reclassify index 65536"
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 65536",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action reclassify.*index 65536 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "99c4",
+        "name": "Delete drop action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action drop index 16"
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 16",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action drop.*index 16 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "fb6b",
+        "name": "Delete continue action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action continue index 32"
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 32",
+        "expExitCode": "0",
+        "verifyCmd": "actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action continue.*index 32 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "0eb3",
+        "name": "Delete non-existent action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions del action gact index 2",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "f02c",
+        "name": "Replace gact action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action drop index 10",
+            "$TC actions add action drop index 12"
+        ],
+        "cmdUnderTest": "$TC actions replace action ok index 12",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action gact",
+        "matchPattern": "action order [0-9]*: gact action pass",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "525f",
+        "name": "Get gact action by index",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action drop index 3900800700"
+        ],
+        "cmdUnderTest": "$TC actions get action gact index 3900800700",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action gact index 3900800700",
+        "matchPattern": "index 3900800700",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "1021",
+        "name": "Add batch of 32 gact pass actions",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action pass index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "da7a",
+        "name": "Add batch of 32 gact continue actions with cookie",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action continue index \\$i cookie aabbccddeeff112233445566778800a1 \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "8aa3",
+        "name": "Delete batch of 32 gact continue actions",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action continue index \\$i \\\"; args=\\\"\\$args\\$cmd\\\"; done && $TC actions add \\$args\""
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action gact index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions del \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "8e47",
+        "name": "Add gact action with random determ goto chain control action",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action pass random determ goto chain 1 2 index 90",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pass random type determ goto chain 1 val 2.*index 90 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "ca89",
+        "name": "Replace gact action with invalid goto chain control",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action pass random determ drop 2 index 90"
+        ],
+        "cmdUnderTest": "$TC actions replace action goto chain 42 random determ drop 5 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pass.*random type determ drop val 2.*index 90 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "95ad",
+        "name": "Add gact pass action with no_percpu flag",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action pass no_percpu",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order [0-9]*: gact action pass.*no_percpu",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "7f52",
+        "name": "Try to flush action which is referenced by filter",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress",
+            "$TC actions add action pass index 1",
+            "$TC filter add dev $DEV1 protocol all ingress prio 1 handle 0x1234 matchall action gact index 1"
+        ],
+        "cmdUnderTest": "$TC actions flush action gact",
+        "expExitCode": "1",
+        "verifyCmd": "$TC actions ls action gact",
+        "matchPattern": "total acts 1.*action order [0-9]*: gact action pass.*index 1 ref 2 bind 1",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress",
+            [
+                "sleep 1; $TC actions flush action gact",
+                0,
+                1
+            ]
+        ]
+    },
+    {
+        "id": "ae1e",
+        "name": "Try to flush actions when last one is referenced by filter",
+        "category": [
+            "actions",
+            "gact"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gact",
+                0,
+                1,
+                255
+            ],
+            "$TC qdisc add dev $DEV1 ingress",
+	    [
+                "$TC actions add action pass index 1",
+		0,
+		1,
+		255
+	    ],
+            "$TC actions add action reclassify index 2",
+            "$TC actions add action drop index 3",
+            "$TC filter add dev $DEV1 protocol all ingress prio 1 handle 0x1234 matchall action gact index 3"
+        ],
+        "cmdUnderTest": "$TC actions flush action gact",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action gact",
+        "matchPattern": "total acts 1.*action order [0-9]*: gact action drop.*index 3 ref 2 bind 1",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress",
+            [
+                "sleep 1; $TC actions flush action gact",
+                0,
+                1
+            ]
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/gate.json b/tools/testing/selftests/tc-testing/tc-tests/actions/gate.json
new file mode 100644
index 000000000000..db645c22ad7b
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/gate.json
@@ -0,0 +1,351 @@
+[
+    {
+        "id": "5153",
+        "name": "Add gate action with priority and sched-entry",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate priority 1 sched-entry close 100000000ns index 100",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action gate index 100",
+        "matchPattern": "action order [0-9]*: .*priority 1.*index 100 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "7189",
+        "name": "Add gate action with base-time",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate base-time 200000000000ns sched-entry close 100000000ns index 10",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action ls action gate",
+        "matchPattern": "action order [0-9]*: .*base-time 200s.*index 10 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action gate"
+        ]
+    },
+    {
+        "id": "a721",
+        "name": "Add gate action with cycle-time",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate cycle-time 200000000000ns sched-entry close 100000000ns index 1000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action ls action gate",
+        "matchPattern": "action order [0-9]*: .*cycle-time 200s.*index 1000 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "c029",
+        "name": "Add gate action with cycle-time-ext",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate cycle-time-ext 20000000000ns sched-entry close 100000000ns index 1000",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action gate index 1000",
+        "matchPattern": "action order [0-9]*: .*cycle-time-ext 20s.*index 1000 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "3719",
+        "name": "Replace gate base-time action",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action gate base-time 200000000000ns sched-entry open 200000000ns -1 8000000b index 20",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action replace action gate base-time 400000000000ns index 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action gate index 20",
+        "matchPattern": "action order [0-9]*: .*base-time 400s.*index 20 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "d821",
+        "name": "Delete gate action with valid index",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action gate base-time 200000000000ns sched-entry open 200000000ns -1 8000000b index 302",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action delete action gate index 302",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action get action bpf index 302",
+        "matchPattern": "action order [0-9]*: .*base-time 200s.*index 302 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "3128",
+        "name": "Delete gate action with invalid index",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC action add action gate base-time 600000000000ns sched-entry open 200000000ns -1 8000000b index 999",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action delete action gate index 333",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action gate index 999",
+        "matchPattern": "action order [0-9]*: .*base-time 600s.*index 999 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "7837",
+        "name": "List gate actions",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC action flush action gate",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action gate base-time 600000000000ns sched-entry open 200000000ns -1 8000000b index 101",
+            "$TC action add action gate cycle-time 600000000000ns sched-entry open 600000000ns -1 8000000b index 102",
+            "$TC action add action gate cycle-time-ext 400000000000ns sched-entry close 100000000ns index 103"
+        ],
+        "cmdUnderTest": "$TC action list action gate",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action gate",
+        "matchPattern": "action order [0-9]*:",
+        "matchCount": "3",
+        "teardown": [
+            "$TC actions flush action gate"
+        ]
+    },
+    {
+        "id": "9273",
+        "name": "Flush gate actions",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action gate base-time 600000000000ns sched-entry open 200000000ns -1 8000000b index 101",
+            "$TC action add action gate cycle-time 600000000000ns sched-entry open 600000000ns -1 8000000b index 102",
+            "$TC action add action gate cycle-time-ext 400000000000ns sched-entry close 100000000ns index 103"
+	],
+        "cmdUnderTest": "$TC action flush action gate",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action gate",
+        "matchPattern": "action order [0-9]*: .*priority",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action gate"
+        ]
+    },
+    {
+        "id": "c829",
+        "name": "Add gate action with duplicate index",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ],
+            "$TC action add action gate cycle-time 600000000000ns sched-entry open 600000000ns -1 8000000b index 4294967295"
+        ],
+        "cmdUnderTest": "$TC action add action gate cycle-time 600000000000ns sched-entry open 600000000ns -1 8000000b index 4294967295",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action get action gate index 4294967295",
+        "matchPattern": "action order [0-9]*: .*index 4294967295",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "3043",
+        "name": "Add gate action with invalid index",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate cycle-time-ext 400000000000ns sched-entry close 100000000ns index 4294967296",
+        "expExitCode": "255",
+        "verifyCmd": "$TC action ls action gate",
+        "matchPattern": "action order [0-9]*:",
+        "matchCount": "0",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    },
+    {
+        "id": "2930",
+        "name": "Add gate action with cookie",
+        "category": [
+            "actions",
+            "gate"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action gate",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC action add action gate cycle-time-ext 400000000000ns sched-entry close 100000000ns index 4294 cookie d0d0d0d0d0d0d0d0",
+        "expExitCode": "0",
+        "verifyCmd": "$TC action list action gate",
+        "matchPattern": "action order [0-9]*: .*cookie d0d0d0d0d0d0d0",
+        "matchCount": "1",
+        "teardown": [
+            "$TC action flush action gate"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json b/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json
new file mode 100644
index 000000000000..f587a32e44c4
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/ife.json
@@ -0,0 +1,1283 @@
+[
+    {
+        "id": "7682",
+        "name": "Create valid ife encode action with mark and pass control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow mark pass index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action pass.*type 0[xX]ED3E.*allow mark.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "ef47",
+        "name": "Create valid ife encode action with mark and pipe control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 10 pipe index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*type 0[xX]ED3E.*use mark.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "df43",
+        "name": "Create valid ife encode action with mark and continue control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow mark continue index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action continue.*type 0[xX]ED3E.*allow mark.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "e4cf",
+        "name": "Create valid ife encode action with mark and drop control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 789 drop index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action drop.*type 0[xX]ED3E.*use mark 789.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "ccba",
+        "name": "Create valid ife encode action with mark and reclassify control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 656768 reclassify index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action reclassify.*type 0[xX]ED3E.*use mark 656768.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "a1cf",
+        "name": "Create valid ife encode action with mark and jump control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 65 jump 1 index 2",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 2",
+        "matchPattern": "action order [0-9]*: ife encode action jump 1.*type 0[xX]ED3E.*use mark 65.*index 2",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "cb3d",
+        "name": "Create valid ife encode action with mark value at 32-bit maximum",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 4294967295 reclassify index 90",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 90",
+        "matchPattern": "action order [0-9]*: ife encode action reclassify.*type 0[xX]ED3E.*use mark 4294967295.*index 90",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "1efb",
+        "name": "Create ife encode action with mark value exceeding 32-bit maximum",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode use mark 4294967295999 pipe index 90",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 90",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*type 0[xX]ED3E.*use mark 4294967295999.*index 90",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "95ed",
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+        "id": "2ca1",
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+        ],
+        "cmdUnderTest": "$TC actions add action ife decode reclassify index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 1",
+        "matchPattern": "action order [0-9]*: ife decode action reclassify.*type 0(x0)?.*allow mark allow tcindex allow prio.*index 1",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "8f44",
+        "name": "Create valid ife decode action with jump control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife decode jump 10 index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 1",
+        "matchPattern": "action order [0-9]*: ife decode action jump 10.*type 0(x0)?.*allow mark allow tcindex allow prio.*index 1",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "56cf",
+        "name": "Create ife encode action with index exceeding 32-bit maximum",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow mark pass index 4294967295999",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4294967295999",
+        "matchPattern": "action order [0-9]*: ife encode action pass.*type 0[xX]ED3E.*allow mark.*index 4294967295999",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "ee94",
+        "name": "Create ife encode action with invalid control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow mark kuka index 4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action kuka.*type 0[xX]ED3E.*allow mark.*index 4",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "b330",
+        "name": "Create ife encode action with cookie",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow prio pipe index 4 cookie aabbccddeeff112233445566778800a1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*type 0[xX]ED3E.*allow prio.*index 4.*cookie aabbccddeeff112233445566778800a1",
+        "matchCount": "1",
+        "teardown": [
+           "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "bbc0",
+        "name": "Create ife encode action with invalid argument",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow foo pipe index 4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*type 0[xX]ED3E.*allow foo.*index 4",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d54a",
+        "name": "Create ife encode action with invalid type argument",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow prio type 70000 pipe index 4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*type 0[xX]11170.*allow prio.*index 4",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "7ee0",
+        "name": "Create ife encode action with invalid mac src argument",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow prio src 00:11:22:33:44:pp pipe index 4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*allow prio.*index 4",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "0a7d",
+        "name": "Create ife encode action with invalid mac dst argument",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action ife encode allow prio dst 00.111-22:33:44:aa pipe index 4",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 4",
+        "matchPattern": "action order [0-9]*: ife encode action pipe.*allow prio.*index 4",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "a0e2",
+        "name": "Replace ife encode action with invalid goto chain control",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action ife encode allow mark pass index 90"
+        ],
+        "cmdUnderTest": "$TC actions replace action ife encode allow mark goto chain 42 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action ife index 90",
+        "matchPattern": "action order [0-9]*: ife encode action pass.*type 0[xX]ED3E .*allow mark.*index 90 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "a972",
+        "name": "Delete ife encode action with valid index",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ],
+	    "$TC actions add action ife encode allow mark pass index 20"
+        ],
+        "cmdUnderTest": "$TC actions del action ife index 20",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action ife index 20",
+        "matchPattern": "action order [0-9]*: ife encode action pass.*type 0[xX]ED3E.*allow mark.*index 20",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    },
+    {
+        "id": "1272",
+        "name": "Delete ife encode action with invalid index",
+        "category": [
+            "actions",
+            "ife"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action ife",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action ife encode allow mark pass index 20"
+        ],
+        "cmdUnderTest": "$TC actions del action ife index 10",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions ls action ife index 20",
+        "matchPattern": "action order [0-9]*: ife encode action pass.*type 0[xX]ED3E.*allow mark.*index 20",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action ife"
+        ]
+    }
+]
diff --git a/tools/testing/selftests/tc-testing/tc-tests/actions/mirred.json b/tools/testing/selftests/tc-testing/tc-tests/actions/mirred.json
new file mode 100644
index 000000000000..b73bd255ea36
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tc-tests/actions/mirred.json
@@ -0,0 +1,1056 @@
+[
+    {
+        "id": "5124",
+        "name": "Add mirred mirror to egress action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress mirror index 1 dev lo",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress Mirror to device lo\\).*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "6fb4",
+        "name": "Add mirred redirect to egress action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress redirect index 2 dev lo action pipe",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress Redirect to device lo\\).*index 2 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred",
+            "$TC actions flush action gact"
+        ]
+    },
+    {
+        "id": "ba38",
+        "name": "Get mirred actions",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mirred egress mirror index 1 dev lo",
+            "$TC actions add action mirred egress redirect index 2 dev lo"
+        ],
+        "cmdUnderTest": "$TC actions show action mirred",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "[Mirror|Redirect] to device lo",
+        "matchCount": "2",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "d7c0",
+        "name": "Add invalid mirred direction",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred inbound mirror index 20 dev lo",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(.*to device lo\\).*index 20 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "e213",
+        "name": "Add invalid mirred action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress remirror index 20 dev lo",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress.*to device lo\\).*index 20 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "2d89",
+        "name": "Add mirred action with invalid device",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress mirror index 20 dev eltoh",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(.*to device eltoh\\).*index 20 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "300b",
+        "name": "Add mirred action with duplicate index",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mirred egress redirect index 15 dev lo"
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress mirror index 15 dev lo",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(.*to device lo\\).*index 15 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "8917",
+        "name": "Add mirred mirror action with control pass",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo pass index 1",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 1",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) pass.*index 1 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "1054",
+        "name": "Add mirred mirror action with control pipe",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo pipe index 15",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 15",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) pipe.*index 15 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "9887",
+        "name": "Add mirred mirror action with control continue",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo continue index 15",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 15",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) continue.*index 15 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "e4aa",
+        "name": "Add mirred mirror action with control reclassify",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo reclassify index 150",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 150",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) reclassify.*index 150 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "ece9",
+        "name": "Add mirred mirror action with control drop",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo drop index 99",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 99",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) drop.*index 99 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "0031",
+        "name": "Add mirred mirror action with control jump",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo jump 10 index 99",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 99",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) jump 10.*index 99 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "407c",
+        "name": "Add mirred mirror action with cookie",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo reclassify cookie aa11bb22cc33dd44ee55",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions ls action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) reclassify.*cookie aa11bb22cc33dd44ee55",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "8b69",
+        "name": "Add mirred mirror action with index at 32-bit maximum",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo pipe index 4294967295",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions get action mirred index 4294967295",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) pipe.*index 4294967295",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "3f66",
+        "name": "Add mirred mirror action with index exceeding 32-bit maximum",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror dev lo pipe index 429496729555",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action mirred index 429496729555",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) pipe.*index 429496729555",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "a70e",
+        "name": "Delete mirred mirror action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mirred egress mirror index 5 dev lo"
+        ],
+        "cmdUnderTest": "$TC actions del action mirred index 5",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress Mirror to device lo\\).*index 5 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "3fb3",
+        "name": "Delete mirred redirect action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mirred egress redirect index 5 dev lo"
+        ],
+        "cmdUnderTest": "$TC actions del action mirred index 5",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress Redirect to device lo\\).*index 5 ref",
+        "matchCount": "0",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "2a9a",
+        "name": "Replace mirred action with invalid goto chain control",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "$TC actions add action mirred ingress mirror dev lo drop index 90"
+        ],
+        "cmdUnderTest": "$TC actions replace action mirred ingress mirror dev lo goto chain 42 index 90 cookie c1a0c1a0",
+        "expExitCode": "255",
+        "verifyCmd": "$TC actions get action mirred index 90",
+        "matchPattern": "action order [0-9]*: mirred \\(Ingress Mirror to device lo\\) drop.*index 90 ref",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "4749",
+        "name": "Add batch of 32 mirred redirect egress actions with cookie",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred egress redirect dev lo index \\$i cookie aabbccddeeff112233445566778800a1 \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "5c69",
+        "name": "Delete batch of 32 mirred redirect egress actions",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred egress redirect dev lo index \\$i \\\"; args=\\\"\\$args\\$cmd\\\"; done && $TC actions add \\$args\""
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions del \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "d3c0",
+        "name": "Add batch of 32 mirred mirror ingress actions with cookie",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred ingress mirror dev lo index \\$i cookie aabbccddeeff112233445566778800a1 \\\"; args=\"\\$args\\$cmd\"; done && $TC actions add \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "32",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "e684",
+        "name": "Delete batch of 32 mirred mirror ingress actions",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred ingress mirror dev lo index \\$i \\\"; args=\\\"\\$args\\$cmd\\\"; done && $TC actions add \\$args\""
+        ],
+        "cmdUnderTest": "bash -c \"for i in \\`seq 1 32\\`; do cmd=\\\"action mirred index \\$i \\\"; args=\"\\$args\\$cmd\"; done && $TC actions del \\$args\"",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "^[ \t]+index [0-9]+ ref",
+        "matchCount": "0",
+        "teardown": []
+    },
+    {
+        "id": "31e3",
+        "name": "Add mirred mirror to egress action with no_percpu flag",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+           "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress mirror dev lo no_percpu",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action mirred",
+        "matchPattern": "action order [0-9]*: mirred \\(Egress Mirror to device lo\\).*no_percpu",
+        "matchCount": "1",
+        "teardown": [
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "456d",
+        "name": "Add mirred mirror to egress block action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "dependsOn": "$TC actions add action mirred help 2>&1 | grep -q blockid",
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 egress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress mirror index 1 blockid 21",
+        "expExitCode": "0",
+        "verifyCmd": "$TC -j actions get action mirred index 1",
+        "matchJSON": [
+            {
+                "total acts": 0
+            },
+            {
+                "actions": [
+                    {
+                        "order": 1,
+                        "kind": "mirred",
+                        "mirred_action": "mirror",
+                        "direction": "egress",
+                        "to_blockid": 21,
+                        "control_action": {
+                            "type": "pipe"
+                        },
+                        "index": 1,
+                        "ref": 1,
+                        "bind": 0,
+                        "not_in_hw": true
+                    }
+                ]
+            }
+        ],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 egress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "2358",
+        "name": "Add mirred mirror to ingress block action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "dependsOn": "$TC actions add action mirred help 2>&1 | grep -q blockid",
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 ingress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress mirror index 1 blockid 21",
+        "expExitCode": "0",
+        "verifyCmd": "$TC -j actions get action mirred index 1",
+        "matchJSON": [
+            {
+                "total acts": 0
+            },
+            {
+                "actions": [
+                    {
+                        "order": 1,
+                        "kind": "mirred",
+                        "mirred_action": "mirror",
+                        "direction": "ingress",
+                        "to_blockid": 21,
+                        "control_action": {
+                            "type": "pipe"
+                        },
+                        "index": 1,
+                        "ref": 1,
+                        "bind": 0,
+                        "not_in_hw": true
+                    }
+                ]
+            }
+        ],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "fdb1",
+        "name": "Add mirred redirect to egress block action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "dependsOn": "$TC actions add action mirred help 2>&1 | grep -q blockid",
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 ingress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred egress redirect index 1 blockid 21",
+        "expExitCode": "0",
+        "verifyCmd": "$TC -j actions get action mirred index 1",
+        "matchJSON": [
+            {
+                "total acts": 0
+            },
+            {
+                "actions": [
+                    {
+                        "order": 1,
+                        "kind": "mirred",
+                        "mirred_action": "redirect",
+                        "direction": "egress",
+                        "to_blockid": 21,
+                        "control_action": {
+                            "type": "stolen"
+                        },
+                        "index": 1,
+                        "ref": 1,
+                        "bind": 0,
+                        "not_in_hw": true
+                    }
+                ]
+            }
+        ],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "20cc",
+        "name": "Add mirred redirect to ingress block action",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "dependsOn": "$TC actions add action mirred help 2>&1 | grep -q blockid",
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 ingress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress redirect index 1 blockid 21",
+        "expExitCode": "0",
+        "verifyCmd": "$TC -j actions get action mirred index 1",
+        "matchJSON": [
+            {
+                "total acts": 0
+            },
+            {
+                "actions": [
+                    {
+                        "order": 1,
+                        "kind": "mirred",
+                        "mirred_action": "redirect",
+                        "direction": "ingress",
+                        "to_blockid": 21,
+                        "control_action": {
+                            "type": "stolen"
+                        },
+                        "index": 1,
+                        "ref": 1,
+                        "bind": 0,
+                        "not_in_hw": true
+                    }
+                ]
+            }
+        ],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "e739",
+        "name": "Try to add mirred action with both dev and block",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "dependsOn": "$TC actions add action mirred help 2>&1 | grep -q blockid",
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 ingress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress redirect index 1 blockid 21 dev $DEV1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC -j actions list action mirred",
+        "matchJSON": [],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "2f47",
+        "name": "Try to add mirred action without specifying neither dev nor block",
+        "category": [
+            "actions",
+            "mirred"
+        ],
+        "plugins": {
+            "requires": "nsPlugin"
+        },
+        "setup": [
+            [
+                "$TC actions flush action mirred",
+                0,
+                1,
+                255
+            ],
+            [
+                "$TC qdisc add dev $DEV1 ingress_block 21 clsact",
+                0
+            ]
+        ],
+        "cmdUnderTest": "$TC actions add action mirred ingress redirect index 1",
+        "expExitCode": "255",
+        "verifyCmd": "$TC -j actions list action mirred",
+        "matchJSON": [],
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV1 ingress_block 21 clsact",
+            "$TC actions flush action mirred"
+        ]
+    },
+    {
+        "id": "3188",
+        "name": "Replace mirred redirect to dev action with redirect to block",
+        "category": [